[release-branch.go1.12] cmd/compile: add necessary operand to mergePoint in rewrite rules

A missing operand to mergePoint caused lower to place values
in the wrong blocks.

Includes test, belt+suspenders to do both ssa check and verify
the output (was is how the bug was originally observed).

The fixed bug here is very likely present in Go versions
1.9-1.12 on amd64 and s390x

Updates #32680.
Fixes #32712.

Change-Id: I63e702c4c40602cb795ef71b1691eb704d38ccc7
Reviewed-on: https://go-review.googlesource.com/c/go/+/183059
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
(cherry picked from commit 769fda2d5110eef6146d7df3bf0219872c9b0da6)
Reviewed-on: https://go-review.googlesource.com/c/go/+/183241

6 files changed, 1032 insertions, 1008 deletions

diff --git a/src/cmd/compile/internal/ssa/gen/AMD64.rules b/src/cmd/compile/internal/ssa/gen/AMD64.rules
index 6b2d3f77cf..bf1581df1c 100644
--- a/src/cmd/compile/internal/ssa/gen/AMD64.rules
+++ b/src/cmd/compile/internal/ssa/gen/AMD64.rules
@@ -1597,13 +1597,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
+  -> @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
 
 (ORQ
     s1:(SHLQconst [j1] x1:(MOVBload [i1] {s} p mem))
@@ -1618,13 +1618,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
+  -> @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
 
 (ORQ
     s1:(SHLQconst [j1] x1:(MOVWload [i1] {s} p mem))
@@ -1639,13 +1639,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLload [i0] {s} p mem)) y)
+  -> @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLload [i0] {s} p mem)) y)
 
 // Little-endian indexed loads
 
@@ -1722,13 +1722,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+  -> @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 
 (ORQ
     s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem))
@@ -1743,13 +1743,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+  -> @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 
 (ORQ
     s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} p idx mem))
@@ -1764,13 +1764,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+  -> @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 
 // Big-endian loads
 
@@ -1864,13 +1864,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
+  -> @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
 
 (ORQ
     s0:(SHLQconst [j0] x0:(MOVBload [i0] {s} p mem))
@@ -1885,13 +1885,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
+  -> @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
 
 (ORQ
     s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWload [i0] {s} p mem)))
@@ -1908,7 +1908,7 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(r0)
@@ -1916,7 +1916,7 @@
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLload [i0] {s} p mem))) y)
+  -> @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLload [i0] {s} p mem))) y)
 
 // Big-endian indexed loads
 
@@ -2010,13 +2010,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+  -> @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 
 (ORQ
     s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem))
@@ -2031,13 +2031,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+  -> @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 
 (ORQ
     s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} p idx mem)))
@@ -2054,7 +2054,7 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(r0)
@@ -2062,7 +2062,7 @@
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+  -> @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 
 // Combine 2 byte stores + shift into rolw 8 + word store
 (MOVBstore [i] {s} p w
diff --git a/src/cmd/compile/internal/ssa/gen/S390X.rules b/src/cmd/compile/internal/ssa/gen/S390X.rules
index 0aeea53561..775b846131 100644
--- a/src/cmd/compile/internal/ssa/gen/S390X.rules
+++ b/src/cmd/compile/internal/ssa/gen/S390X.rules
@@ -1480,13 +1480,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
+  -> @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
 
 (OR
     s0:(SLDconst [j0] x0:(MOVBZload [i0] {s} p mem))
@@ -1501,13 +1501,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
+  -> @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
 
 (OR
     s0:(SLDconst [j0] x0:(MOVHZload [i0] {s} p mem))
@@ -1522,13 +1522,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZload [i0] {s} p mem)) y)
+  -> @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZload [i0] {s} p mem)) y)
 
 // Big-endian indexed loads
 
@@ -1610,13 +1610,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+  -> @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 
 (OR
     s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem))
@@ -1631,13 +1631,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+  -> @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 
 (OR
     s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} p idx mem))
@@ -1652,13 +1652,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+  -> @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 
 // Little-endian loads
 
@@ -1750,13 +1750,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
+  -> @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
 
 (OR
     s1:(SLDconst [j1] x1:(MOVBZload [i1] {s} p mem))
@@ -1772,13 +1772,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
+  -> @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
 
 (OR
     s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRload [i1] {s} p mem)))
@@ -1795,7 +1795,7 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(r0)
@@ -1803,7 +1803,7 @@
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRload [i0] {s} p mem))) y)
+  -> @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRload [i0] {s} p mem))) y)
 
 // Little-endian indexed loads
 
@@ -1895,13 +1895,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+  -> @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 
 (OR
     s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem))
@@ -1917,13 +1917,13 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+  -> @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 
 (OR
     s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} p idx mem)))
@@ -1940,7 +1940,7 @@
   && s0.Uses == 1
   && s1.Uses == 1
   && or.Uses == 1
-  && mergePoint(b,x0,x1) != nil
+  && mergePoint(b,x0,x1,y) != nil
   && clobber(x0)
   && clobber(x1)
   && clobber(r0)
@@ -1948,7 +1948,7 @@
   && clobber(s0)
   && clobber(s1)
   && clobber(or)
-  -> @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+  -> @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 
 // Combine stores into store multiples.
 // 32-bit
diff --git a/src/cmd/compile/internal/ssa/rewriteAMD64.go b/src/cmd/compile/internal/ssa/rewriteAMD64.go
index b52e53f9d2..3a95c20c25 100644
--- a/src/cmd/compile/internal/ssa/rewriteAMD64.go
+++ b/src/cmd/compile/internal/ssa/rewriteAMD64.go
@@ -30132,8 +30132,8 @@ func rewriteValueAMD64_OpAMD64ORL_50(v *Value) bool {
 		return true
 	}
 	// match: (ORL s1:(SHLLconst [j1] x1:(MOVBload [i1] {s} p mem)) or:(ORL s0:(SHLLconst [j0] x0:(MOVBload [i0] {s} p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -30176,10 +30176,10 @@ func rewriteValueAMD64_OpAMD64ORL_50(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -30196,8 +30196,8 @@ func rewriteValueAMD64_OpAMD64ORL_50(v *Value) bool {
 		return true
 	}
 	// match: (ORL s1:(SHLLconst [j1] x1:(MOVBload [i1] {s} p mem)) or:(ORL y s0:(SHLLconst [j0] x0:(MOVBload [i0] {s} p mem))))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -30240,10 +30240,10 @@ func rewriteValueAMD64_OpAMD64ORL_50(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -30260,8 +30260,8 @@ func rewriteValueAMD64_OpAMD64ORL_50(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL s0:(SHLLconst [j0] x0:(MOVBload [i0] {s} p mem)) y) s1:(SHLLconst [j1] x1:(MOVBload [i1] {s} p mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -30304,10 +30304,10 @@ func rewriteValueAMD64_OpAMD64ORL_50(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -30331,8 +30331,8 @@ func rewriteValueAMD64_OpAMD64ORL_60(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORL or:(ORL y s0:(SHLLconst [j0] x0:(MOVBload [i0] {s} p mem))) s1:(SHLLconst [j1] x1:(MOVBload [i1] {s} p mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -30375,10 +30375,10 @@ func rewriteValueAMD64_OpAMD64ORL_60(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31266,8 +31266,8 @@ func rewriteValueAMD64_OpAMD64ORL_70(v *Value) bool {
 		return true
 	}
 	// match: (ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) or:(ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) y))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31314,10 +31314,10 @@ func rewriteValueAMD64_OpAMD64ORL_70(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31335,8 +31335,8 @@ func rewriteValueAMD64_OpAMD64ORL_70(v *Value) bool {
 		return true
 	}
 	// match: (ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) or:(ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) y))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31383,10 +31383,10 @@ func rewriteValueAMD64_OpAMD64ORL_70(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31404,8 +31404,8 @@ func rewriteValueAMD64_OpAMD64ORL_70(v *Value) bool {
 		return true
 	}
 	// match: (ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) or:(ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31452,10 +31452,10 @@ func rewriteValueAMD64_OpAMD64ORL_70(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31480,8 +31480,8 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) or:(ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31528,10 +31528,10 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31549,8 +31549,8 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		return true
 	}
 	// match: (ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) or:(ORL y s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem))))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31597,10 +31597,10 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31618,8 +31618,8 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		return true
 	}
 	// match: (ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) or:(ORL y s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem))))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31666,10 +31666,10 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31687,8 +31687,8 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		return true
 	}
 	// match: (ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) or:(ORL y s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem))))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31735,10 +31735,10 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31756,8 +31756,8 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		return true
 	}
 	// match: (ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) or:(ORL y s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem))))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31804,10 +31804,10 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31825,8 +31825,8 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) y) s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -31873,10 +31873,10 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31894,8 +31894,8 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) y) s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -31942,10 +31942,10 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31963,8 +31963,8 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL y s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem))) s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32011,10 +32011,10 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32032,8 +32032,8 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL y s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem))) s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32080,10 +32080,10 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32101,8 +32101,8 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) y) s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32149,10 +32149,10 @@ func rewriteValueAMD64_OpAMD64ORL_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32177,8 +32177,8 @@ func rewriteValueAMD64_OpAMD64ORL_90(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORL or:(ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) y) s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32225,10 +32225,10 @@ func rewriteValueAMD64_OpAMD64ORL_90(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32246,8 +32246,8 @@ func rewriteValueAMD64_OpAMD64ORL_90(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL y s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem))) s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32294,10 +32294,10 @@ func rewriteValueAMD64_OpAMD64ORL_90(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32315,8 +32315,8 @@ func rewriteValueAMD64_OpAMD64ORL_90(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL y s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem))) s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32363,10 +32363,10 @@ func rewriteValueAMD64_OpAMD64ORL_90(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32618,8 +32618,8 @@ func rewriteValueAMD64_OpAMD64ORL_90(v *Value) bool {
 		return true
 	}
 	// match: (ORL s0:(SHLLconst [j0] x0:(MOVBload [i0] {s} p mem)) or:(ORL s1:(SHLLconst [j1] x1:(MOVBload [i1] {s} p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -32662,10 +32662,10 @@ func rewriteValueAMD64_OpAMD64ORL_90(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32685,8 +32685,8 @@ func rewriteValueAMD64_OpAMD64ORL_90(v *Value) bool {
 		return true
 	}
 	// match: (ORL s0:(SHLLconst [j0] x0:(MOVBload [i0] {s} p mem)) or:(ORL y s1:(SHLLconst [j1] x1:(MOVBload [i1] {s} p mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -32729,10 +32729,10 @@ func rewriteValueAMD64_OpAMD64ORL_90(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32752,8 +32752,8 @@ func rewriteValueAMD64_OpAMD64ORL_90(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL s1:(SHLLconst [j1] x1:(MOVBload [i1] {s} p mem)) y) s0:(SHLLconst [j0] x0:(MOVBload [i0] {s} p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32796,10 +32796,10 @@ func rewriteValueAMD64_OpAMD64ORL_90(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32826,8 +32826,8 @@ func rewriteValueAMD64_OpAMD64ORL_100(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORL or:(ORL y s1:(SHLLconst [j1] x1:(MOVBload [i1] {s} p mem))) s0:(SHLLconst [j0] x0:(MOVBload [i0] {s} p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32870,10 +32870,10 @@ func rewriteValueAMD64_OpAMD64ORL_100(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -33916,8 +33916,8 @@ func rewriteValueAMD64_OpAMD64ORL_110(v *Value) bool {
 		return true
 	}
 	// match: (ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) or:(ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -33964,10 +33964,10 @@ func rewriteValueAMD64_OpAMD64ORL_110(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -33988,8 +33988,8 @@ func rewriteValueAMD64_OpAMD64ORL_110(v *Value) bool {
 		return true
 	}
 	// match: (ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) or:(ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -34036,10 +34036,10 @@ func rewriteValueAMD64_OpAMD64ORL_110(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34060,8 +34060,8 @@ func rewriteValueAMD64_OpAMD64ORL_110(v *Value) bool {
 		return true
 	}
 	// match: (ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) or:(ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -34108,10 +34108,10 @@ func rewriteValueAMD64_OpAMD64ORL_110(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34139,8 +34139,8 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) or:(ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -34187,10 +34187,10 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34211,8 +34211,8 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		return true
 	}
 	// match: (ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) or:(ORL y s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -34259,10 +34259,10 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34283,8 +34283,8 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		return true
 	}
 	// match: (ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) or:(ORL y s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -34331,10 +34331,10 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34355,8 +34355,8 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		return true
 	}
 	// match: (ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) or:(ORL y s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -34403,10 +34403,10 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34427,8 +34427,8 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		return true
 	}
 	// match: (ORL s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) or:(ORL y s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -34475,10 +34475,10 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34499,8 +34499,8 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) y) s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -34547,10 +34547,10 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34571,8 +34571,8 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) y) s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -34619,10 +34619,10 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34643,8 +34643,8 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL y s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem))) s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -34691,10 +34691,10 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34715,8 +34715,8 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL y s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem))) s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -34763,10 +34763,10 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34787,8 +34787,8 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) y) s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -34835,10 +34835,10 @@ func rewriteValueAMD64_OpAMD64ORL_120(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34866,8 +34866,8 @@ func rewriteValueAMD64_OpAMD64ORL_130(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORL or:(ORL s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) y) s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -34914,10 +34914,10 @@ func rewriteValueAMD64_OpAMD64ORL_130(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34938,8 +34938,8 @@ func rewriteValueAMD64_OpAMD64ORL_130(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL y s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem))) s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -34986,10 +34986,10 @@ func rewriteValueAMD64_OpAMD64ORL_130(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35010,8 +35010,8 @@ func rewriteValueAMD64_OpAMD64ORL_130(v *Value) bool {
 		return true
 	}
 	// match: (ORL or:(ORL y s1:(SHLLconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem))) s0:(SHLLconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORL <v.Type> (SHLLconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -35058,10 +35058,10 @@ func rewriteValueAMD64_OpAMD64ORL_130(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORL, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37046,8 +37046,8 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVBload [i1] {s} p mem)) or:(ORQ s0:(SHLQconst [j0] x0:(MOVBload [i0] {s} p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -37090,10 +37090,10 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37110,8 +37110,8 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVBload [i1] {s} p mem)) or:(ORQ y s0:(SHLQconst [j0] x0:(MOVBload [i0] {s} p mem))))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -37154,10 +37154,10 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37174,8 +37174,8 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s0:(SHLQconst [j0] x0:(MOVBload [i0] {s} p mem)) y) s1:(SHLQconst [j1] x1:(MOVBload [i1] {s} p mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -37218,10 +37218,10 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37238,8 +37238,8 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s0:(SHLQconst [j0] x0:(MOVBload [i0] {s} p mem))) s1:(SHLQconst [j1] x1:(MOVBload [i1] {s} p mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -37282,10 +37282,10 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37302,8 +37302,8 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVWload [i1] {s} p mem)) or:(ORQ s0:(SHLQconst [j0] x0:(MOVWload [i0] {s} p mem)) y))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLload [i0] {s} p mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -37346,10 +37346,10 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37366,8 +37366,8 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVWload [i1] {s} p mem)) or:(ORQ y s0:(SHLQconst [j0] x0:(MOVWload [i0] {s} p mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLload [i0] {s} p mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -37410,10 +37410,10 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37430,8 +37430,8 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s0:(SHLQconst [j0] x0:(MOVWload [i0] {s} p mem)) y) s1:(SHLQconst [j1] x1:(MOVWload [i1] {s} p mem)))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLload [i0] {s} p mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -37474,10 +37474,10 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37494,8 +37494,8 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s0:(SHLQconst [j0] x0:(MOVWload [i0] {s} p mem))) s1:(SHLQconst [j1] x1:(MOVWload [i1] {s} p mem)))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLload [i0] {s} p mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -37538,10 +37538,10 @@ func rewriteValueAMD64_OpAMD64ORQ_30(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -38875,8 +38875,8 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) or:(ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) y))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -38923,10 +38923,10 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -38944,8 +38944,8 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) or:(ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) y))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -38992,10 +38992,10 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39013,8 +39013,8 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) or:(ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -39061,10 +39061,10 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39082,8 +39082,8 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) or:(ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -39130,10 +39130,10 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39151,8 +39151,8 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) or:(ORQ y s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem))))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -39199,10 +39199,10 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39220,8 +39220,8 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) or:(ORQ y s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem))))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -39268,10 +39268,10 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39289,8 +39289,8 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) or:(ORQ y s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem))))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -39337,10 +39337,10 @@ func rewriteValueAMD64_OpAMD64ORQ_60(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39365,8 +39365,8 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) or:(ORQ y s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem))))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -39413,10 +39413,10 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39434,8 +39434,8 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) y) s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -39482,10 +39482,10 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39503,8 +39503,8 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) y) s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -39551,10 +39551,10 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39572,8 +39572,8 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem))) s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -39620,10 +39620,10 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39641,8 +39641,8 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem))) s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -39689,10 +39689,10 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39710,8 +39710,8 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) y) s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -39758,10 +39758,10 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39779,8 +39779,8 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) y) s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -39827,10 +39827,10 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39848,8 +39848,8 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem))) s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -39896,10 +39896,10 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39917,8 +39917,8 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem))) s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVWloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -39965,10 +39965,10 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -39986,8 +39986,8 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} p idx mem)) or:(ORQ s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} p idx mem)) y))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -40034,10 +40034,10 @@ func rewriteValueAMD64_OpAMD64ORQ_70(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40062,8 +40062,8 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} idx p mem)) or:(ORQ s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} p idx mem)) y))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -40110,10 +40110,10 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40131,8 +40131,8 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} p idx mem)) or:(ORQ s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} idx p mem)) y))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -40179,10 +40179,10 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40200,8 +40200,8 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} idx p mem)) or:(ORQ s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} idx p mem)) y))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -40248,10 +40248,10 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40269,8 +40269,8 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} p idx mem)) or:(ORQ y s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} p idx mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -40317,10 +40317,10 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40338,8 +40338,8 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} idx p mem)) or:(ORQ y s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} p idx mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -40386,10 +40386,10 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40407,8 +40407,8 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} p idx mem)) or:(ORQ y s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} idx p mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -40455,10 +40455,10 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40476,8 +40476,8 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} idx p mem)) or:(ORQ y s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} idx p mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -40524,10 +40524,10 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40545,8 +40545,8 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} p idx mem)) y) s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} p idx mem)))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -40593,10 +40593,10 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40614,8 +40614,8 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} idx p mem)) y) s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} p idx mem)))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -40662,10 +40662,10 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40683,8 +40683,8 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} p idx mem))) s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} p idx mem)))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -40731,10 +40731,10 @@ func rewriteValueAMD64_OpAMD64ORQ_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40759,8 +40759,8 @@ func rewriteValueAMD64_OpAMD64ORQ_90(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORQ or:(ORQ y s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} idx p mem))) s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} p idx mem)))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -40807,10 +40807,10 @@ func rewriteValueAMD64_OpAMD64ORQ_90(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40828,8 +40828,8 @@ func rewriteValueAMD64_OpAMD64ORQ_90(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} p idx mem)) y) s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} idx p mem)))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -40876,10 +40876,10 @@ func rewriteValueAMD64_OpAMD64ORQ_90(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40897,8 +40897,8 @@ func rewriteValueAMD64_OpAMD64ORQ_90(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} idx p mem)) y) s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} idx p mem)))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -40945,10 +40945,10 @@ func rewriteValueAMD64_OpAMD64ORQ_90(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -40966,8 +40966,8 @@ func rewriteValueAMD64_OpAMD64ORQ_90(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} p idx mem))) s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} idx p mem)))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -41014,10 +41014,10 @@ func rewriteValueAMD64_OpAMD64ORQ_90(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -41035,8 +41035,8 @@ func rewriteValueAMD64_OpAMD64ORQ_90(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s0:(SHLQconst [j0] x0:(MOVWloadidx1 [i0] {s} idx p mem))) s1:(SHLQconst [j1] x1:(MOVWloadidx1 [i1] {s} idx p mem)))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j0] (MOVLloadidx1 [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -41083,10 +41083,10 @@ func rewriteValueAMD64_OpAMD64ORQ_90(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -41463,8 +41463,8 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] x0:(MOVBload [i0] {s} p mem)) or:(ORQ s1:(SHLQconst [j1] x1:(MOVBload [i1] {s} p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -41507,10 +41507,10 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -41530,8 +41530,8 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] x0:(MOVBload [i0] {s} p mem)) or:(ORQ y s1:(SHLQconst [j1] x1:(MOVBload [i1] {s} p mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -41574,10 +41574,10 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -41597,8 +41597,8 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s1:(SHLQconst [j1] x1:(MOVBload [i1] {s} p mem)) y) s0:(SHLQconst [j0] x0:(MOVBload [i0] {s} p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -41641,10 +41641,10 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -41664,8 +41664,8 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s1:(SHLQconst [j1] x1:(MOVBload [i1] {s} p mem))) s0:(SHLQconst [j0] x0:(MOVBload [i0] {s} p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -41708,10 +41708,10 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -41731,8 +41731,8 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWload [i0] {s} p mem))) or:(ORQ s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWload [i1] {s} p mem))) y))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLload [i0] {s} p mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -41789,10 +41789,10 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -41811,8 +41811,8 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWload [i0] {s} p mem))) or:(ORQ y s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWload [i1] {s} p mem)))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLload [i0] {s} p mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -41869,10 +41869,10 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -41891,8 +41891,8 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWload [i1] {s} p mem))) y) s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWload [i0] {s} p mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLload [i0] {s} p mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -41949,10 +41949,10 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -41971,8 +41971,8 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWload [i1] {s} p mem)))) s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWload [i0] {s} p mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLload [i0] {s} p mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -42029,10 +42029,10 @@ func rewriteValueAMD64_OpAMD64ORQ_100(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -43600,8 +43600,8 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) or:(ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -43648,10 +43648,10 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -43672,8 +43672,8 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) or:(ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -43720,10 +43720,10 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -43744,8 +43744,8 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) or:(ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -43792,10 +43792,10 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -43816,8 +43816,8 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) or:(ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -43864,10 +43864,10 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -43888,8 +43888,8 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) or:(ORQ y s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -43936,10 +43936,10 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -43960,8 +43960,8 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) or:(ORQ y s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -44008,10 +44008,10 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44032,8 +44032,8 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)) or:(ORQ y s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -44080,10 +44080,10 @@ func rewriteValueAMD64_OpAMD64ORQ_130(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44111,8 +44111,8 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORQ s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)) or:(ORQ y s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -44159,10 +44159,10 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44183,8 +44183,8 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) y) s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -44231,10 +44231,10 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44255,8 +44255,8 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) y) s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -44303,10 +44303,10 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44327,8 +44327,8 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem))) s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -44375,10 +44375,10 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44399,8 +44399,8 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem))) s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -44447,10 +44447,10 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44471,8 +44471,8 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem)) y) s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -44519,10 +44519,10 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44543,8 +44543,8 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem)) y) s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -44591,10 +44591,10 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44615,8 +44615,8 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} p idx mem))) s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -44663,10 +44663,10 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44687,8 +44687,8 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s1:(SHLQconst [j1] x1:(MOVBloadidx1 [i1] {s} idx p mem))) s0:(SHLQconst [j0] x0:(MOVBloadidx1 [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (ROLWconst <typ.UInt16> [8] (MOVWloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -44735,10 +44735,10 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44759,8 +44759,8 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} p idx mem))) or:(ORQ s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} p idx mem))) y))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -44821,10 +44821,10 @@ func rewriteValueAMD64_OpAMD64ORQ_140(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44851,8 +44851,8 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORQ s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} idx p mem))) or:(ORQ s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} p idx mem))) y))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -44913,10 +44913,10 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -44936,8 +44936,8 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} p idx mem))) or:(ORQ s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} idx p mem))) y))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -44998,10 +44998,10 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -45021,8 +45021,8 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} idx p mem))) or:(ORQ s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} idx p mem))) y))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -45083,10 +45083,10 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -45106,8 +45106,8 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} p idx mem))) or:(ORQ y s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} p idx mem)))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -45168,10 +45168,10 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -45191,8 +45191,8 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} idx p mem))) or:(ORQ y s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} p idx mem)))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -45253,10 +45253,10 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -45276,8 +45276,8 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} p idx mem))) or:(ORQ y s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} idx p mem)))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -45338,10 +45338,10 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -45361,8 +45361,8 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		return true
 	}
 	// match: (ORQ s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} idx p mem))) or:(ORQ y s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} idx p mem)))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -45423,10 +45423,10 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -45446,8 +45446,8 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} p idx mem))) y) s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} p idx mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -45508,10 +45508,10 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -45531,8 +45531,8 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} idx p mem))) y) s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} p idx mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -45593,10 +45593,10 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -45616,8 +45616,8 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} p idx mem)))) s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} p idx mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -45678,10 +45678,10 @@ func rewriteValueAMD64_OpAMD64ORQ_150(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -45708,8 +45708,8 @@ func rewriteValueAMD64_OpAMD64ORQ_160(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORQ or:(ORQ y s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} idx p mem)))) s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} p idx mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -45770,10 +45770,10 @@ func rewriteValueAMD64_OpAMD64ORQ_160(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -45793,8 +45793,8 @@ func rewriteValueAMD64_OpAMD64ORQ_160(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} p idx mem))) y) s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} idx p mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -45855,10 +45855,10 @@ func rewriteValueAMD64_OpAMD64ORQ_160(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -45878,8 +45878,8 @@ func rewriteValueAMD64_OpAMD64ORQ_160(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} idx p mem))) y) s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} idx p mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -45940,10 +45940,10 @@ func rewriteValueAMD64_OpAMD64ORQ_160(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -45963,8 +45963,8 @@ func rewriteValueAMD64_OpAMD64ORQ_160(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} p idx mem)))) s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} idx p mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -46025,10 +46025,10 @@ func rewriteValueAMD64_OpAMD64ORQ_160(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -46048,8 +46048,8 @@ func rewriteValueAMD64_OpAMD64ORQ_160(v *Value) bool {
 		return true
 	}
 	// match: (ORQ or:(ORQ y s1:(SHLQconst [j1] r1:(ROLWconst [8] x1:(MOVWloadidx1 [i1] {s} idx p mem)))) s0:(SHLQconst [j0] r0:(ROLWconst [8] x0:(MOVWloadidx1 [i0] {s} idx p mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORQ <v.Type> (SHLQconst <v.Type> [j1] (BSWAPL <typ.UInt32> (MOVLloadidx1 [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -46110,10 +46110,10 @@ func rewriteValueAMD64_OpAMD64ORQ_160(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpAMD64ORQ, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
diff --git a/src/cmd/compile/internal/ssa/rewriteS390X.go b/src/cmd/compile/internal/ssa/rewriteS390X.go
index ce501a74ef..8d2f54bc06 100644
--- a/src/cmd/compile/internal/ssa/rewriteS390X.go
+++ b/src/cmd/compile/internal/ssa/rewriteS390X.go
@@ -24225,8 +24225,8 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVBZload [i0] {s} p mem)) or:(OR s1:(SLDconst [j1] x1:(MOVBZload [i1] {s} p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -24269,10 +24269,10 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -24289,8 +24289,8 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVBZload [i0] {s} p mem)) or:(OR y s1:(SLDconst [j1] x1:(MOVBZload [i1] {s} p mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -24333,10 +24333,10 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -24353,8 +24353,8 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s1:(SLDconst [j1] x1:(MOVBZload [i1] {s} p mem)) y) s0:(SLDconst [j0] x0:(MOVBZload [i0] {s} p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -24397,10 +24397,10 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -24417,8 +24417,8 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s1:(SLDconst [j1] x1:(MOVBZload [i1] {s} p mem))) s0:(SLDconst [j0] x0:(MOVBZload [i0] {s} p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -24461,10 +24461,10 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -24481,8 +24481,8 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVHZload [i0] {s} p mem)) or:(OR s1:(SLDconst [j1] x1:(MOVHZload [i1] {s} p mem)) y))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZload [i0] {s} p mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -24525,10 +24525,10 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -24545,8 +24545,8 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVHZload [i0] {s} p mem)) or:(OR y s1:(SLDconst [j1] x1:(MOVHZload [i1] {s} p mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZload [i0] {s} p mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -24589,10 +24589,10 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -24609,8 +24609,8 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s1:(SLDconst [j1] x1:(MOVHZload [i1] {s} p mem)) y) s0:(SLDconst [j0] x0:(MOVHZload [i0] {s} p mem)))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZload [i0] {s} p mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -24653,10 +24653,10 @@ func rewriteValueS390X_OpS390XOR_20(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -24680,8 +24680,8 @@ func rewriteValueS390X_OpS390XOR_30(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (OR or:(OR y s1:(SLDconst [j1] x1:(MOVHZload [i1] {s} p mem))) s0:(SLDconst [j0] x0:(MOVHZload [i0] {s} p mem)))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZload [i0] {s} p mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -24724,10 +24724,10 @@ func rewriteValueS390X_OpS390XOR_30(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26054,8 +26054,8 @@ func rewriteValueS390X_OpS390XOR_50(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) or:(OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -26102,10 +26102,10 @@ func rewriteValueS390X_OpS390XOR_50(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26123,8 +26123,8 @@ func rewriteValueS390X_OpS390XOR_50(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) or:(OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -26171,10 +26171,10 @@ func rewriteValueS390X_OpS390XOR_50(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26192,8 +26192,8 @@ func rewriteValueS390X_OpS390XOR_50(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) or:(OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -26240,10 +26240,10 @@ func rewriteValueS390X_OpS390XOR_50(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26261,8 +26261,8 @@ func rewriteValueS390X_OpS390XOR_50(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) or:(OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -26309,10 +26309,10 @@ func rewriteValueS390X_OpS390XOR_50(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26330,8 +26330,8 @@ func rewriteValueS390X_OpS390XOR_50(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) or:(OR y s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -26378,10 +26378,10 @@ func rewriteValueS390X_OpS390XOR_50(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26406,8 +26406,8 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) or:(OR y s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -26454,10 +26454,10 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26475,8 +26475,8 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) or:(OR y s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -26523,10 +26523,10 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26544,8 +26544,8 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) or:(OR y s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -26592,10 +26592,10 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26613,8 +26613,8 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) y) s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -26661,10 +26661,10 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26682,8 +26682,8 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) y) s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -26730,10 +26730,10 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26751,8 +26751,8 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem))) s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -26799,10 +26799,10 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26820,8 +26820,8 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem))) s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -26868,10 +26868,10 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26889,8 +26889,8 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) y) s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -26937,10 +26937,10 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -26958,8 +26958,8 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) y) s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -27006,10 +27006,10 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27027,8 +27027,8 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem))) s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -27075,10 +27075,10 @@ func rewriteValueS390X_OpS390XOR_60(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27103,8 +27103,8 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (OR or:(OR y s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem))) s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -27151,10 +27151,10 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27172,8 +27172,8 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} p idx mem)) or:(OR s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} p idx mem)) y))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -27220,10 +27220,10 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27241,8 +27241,8 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} idx p mem)) or:(OR s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} p idx mem)) y))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -27289,10 +27289,10 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27310,8 +27310,8 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} p idx mem)) or:(OR s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} idx p mem)) y))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -27358,10 +27358,10 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27379,8 +27379,8 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} idx p mem)) or:(OR s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} idx p mem)) y))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -27427,10 +27427,10 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27448,8 +27448,8 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} p idx mem)) or:(OR y s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} p idx mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -27496,10 +27496,10 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27517,8 +27517,8 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} idx p mem)) or:(OR y s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} p idx mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -27565,10 +27565,10 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27586,8 +27586,8 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} p idx mem)) or:(OR y s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} idx p mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -27634,10 +27634,10 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27655,8 +27655,8 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		return true
 	}
 	// match: (OR s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} idx p mem)) or:(OR y s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} idx p mem))))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -27703,10 +27703,10 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27724,8 +27724,8 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} p idx mem)) y) s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} p idx mem)))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -27772,10 +27772,10 @@ func rewriteValueS390X_OpS390XOR_70(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27800,8 +27800,8 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (OR or:(OR s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} idx p mem)) y) s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} p idx mem)))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -27848,10 +27848,10 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27869,8 +27869,8 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} p idx mem))) s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} p idx mem)))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -27917,10 +27917,10 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -27938,8 +27938,8 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} idx p mem))) s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} p idx mem)))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -27986,10 +27986,10 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -28007,8 +28007,8 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} p idx mem)) y) s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} idx p mem)))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -28055,10 +28055,10 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -28076,8 +28076,8 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} idx p mem)) y) s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} idx p mem)))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -28124,10 +28124,10 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -28145,8 +28145,8 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} p idx mem))) s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} idx p mem)))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -28193,10 +28193,10 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -28214,8 +28214,8 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s1:(SLDconst [j1] x1:(MOVHZloadidx [i1] {s} idx p mem))) s0:(SLDconst [j0] x0:(MOVHZloadidx [i0] {s} idx p mem)))
-	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+2 && j1 == j0-16 && j1 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j1] (MOVWZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -28262,10 +28262,10 @@ func rewriteValueS390X_OpS390XOR_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0-16 && j1%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -28624,8 +28624,8 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] x1:(MOVBZload [i1] {s} p mem)) or:(OR s0:(SLDconst [j0] x0:(MOVBZload [i0] {s} p mem)) y))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -28668,10 +28668,10 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -28690,8 +28690,8 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] x1:(MOVBZload [i1] {s} p mem)) or:(OR y s0:(SLDconst [j0] x0:(MOVBZload [i0] {s} p mem))))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -28734,10 +28734,10 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -28756,8 +28756,8 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s0:(SLDconst [j0] x0:(MOVBZload [i0] {s} p mem)) y) s1:(SLDconst [j1] x1:(MOVBZload [i1] {s} p mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -28800,10 +28800,10 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -28822,8 +28822,8 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s0:(SLDconst [j0] x0:(MOVBZload [i0] {s} p mem))) s1:(SLDconst [j1] x1:(MOVBZload [i1] {s} p mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -28866,10 +28866,10 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -28888,8 +28888,8 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRload [i1] {s} p mem))) or:(OR s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRload [i0] {s} p mem))) y))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRload [i0] {s} p mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -28940,10 +28940,10 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -28962,8 +28962,8 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRload [i1] {s} p mem))) or:(OR y s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRload [i0] {s} p mem)))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRload [i0] {s} p mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -29014,10 +29014,10 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -29036,8 +29036,8 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRload [i0] {s} p mem))) y) s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRload [i1] {s} p mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRload [i0] {s} p mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -29088,10 +29088,10 @@ func rewriteValueS390X_OpS390XOR_90(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -29117,8 +29117,8 @@ func rewriteValueS390X_OpS390XOR_100(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (OR or:(OR y s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRload [i0] {s} p mem)))) s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRload [i1] {s} p mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRload [i0] {s} p mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -29169,10 +29169,10 @@ func rewriteValueS390X_OpS390XOR_100(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -30661,8 +30661,8 @@ func rewriteValueS390X_OpS390XOR_120(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) or:(OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) y))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -30709,10 +30709,10 @@ func rewriteValueS390X_OpS390XOR_120(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -30732,8 +30732,8 @@ func rewriteValueS390X_OpS390XOR_120(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) or:(OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) y))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -30780,10 +30780,10 @@ func rewriteValueS390X_OpS390XOR_120(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -30803,8 +30803,8 @@ func rewriteValueS390X_OpS390XOR_120(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) or:(OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) y))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -30851,10 +30851,10 @@ func rewriteValueS390X_OpS390XOR_120(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -30874,8 +30874,8 @@ func rewriteValueS390X_OpS390XOR_120(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) or:(OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) y))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -30922,10 +30922,10 @@ func rewriteValueS390X_OpS390XOR_120(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -30945,8 +30945,8 @@ func rewriteValueS390X_OpS390XOR_120(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) or:(OR y s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem))))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -30993,10 +30993,10 @@ func rewriteValueS390X_OpS390XOR_120(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31023,8 +31023,8 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) or:(OR y s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem))))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31071,10 +31071,10 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31094,8 +31094,8 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) or:(OR y s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem))))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31142,10 +31142,10 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31165,8 +31165,8 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) or:(OR y s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem))))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31213,10 +31213,10 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31236,8 +31236,8 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) y) s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -31284,10 +31284,10 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31307,8 +31307,8 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) y) s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -31355,10 +31355,10 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31378,8 +31378,8 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem))) s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -31426,10 +31426,10 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31449,8 +31449,8 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem))) s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -31497,10 +31497,10 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31520,8 +31520,8 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) y) s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -31568,10 +31568,10 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31591,8 +31591,8 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) y) s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -31639,10 +31639,10 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31662,8 +31662,8 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem))) s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -31710,10 +31710,10 @@ func rewriteValueS390X_OpS390XOR_130(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31740,8 +31740,8 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (OR or:(OR y s0:(SLDconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem))) s1:(SLDconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -31788,10 +31788,10 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31811,8 +31811,8 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} p idx mem))) or:(OR s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} p idx mem))) y))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31867,10 +31867,10 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31890,8 +31890,8 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} idx p mem))) or:(OR s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} p idx mem))) y))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -31946,10 +31946,10 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -31969,8 +31969,8 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} p idx mem))) or:(OR s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} idx p mem))) y))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -32025,10 +32025,10 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32048,8 +32048,8 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} idx p mem))) or:(OR s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} idx p mem))) y))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -32104,10 +32104,10 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32127,8 +32127,8 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} p idx mem))) or:(OR y s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} p idx mem)))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -32183,10 +32183,10 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32206,8 +32206,8 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} idx p mem))) or:(OR y s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} p idx mem)))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -32262,10 +32262,10 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32285,8 +32285,8 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} p idx mem))) or:(OR y s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} idx p mem)))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -32341,10 +32341,10 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32364,8 +32364,8 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		return true
 	}
 	// match: (OR s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} idx p mem))) or:(OR y s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} idx p mem)))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -32420,10 +32420,10 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32443,8 +32443,8 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} p idx mem))) y) s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} p idx mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32499,10 +32499,10 @@ func rewriteValueS390X_OpS390XOR_140(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32529,8 +32529,8 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (OR or:(OR s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} idx p mem))) y) s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} p idx mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32585,10 +32585,10 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32608,8 +32608,8 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} p idx mem)))) s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} p idx mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32664,10 +32664,10 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32687,8 +32687,8 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} idx p mem)))) s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} p idx mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32743,10 +32743,10 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32766,8 +32766,8 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} p idx mem))) y) s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} idx p mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32822,10 +32822,10 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32845,8 +32845,8 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} idx p mem))) y) s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} idx p mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32901,10 +32901,10 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -32924,8 +32924,8 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} p idx mem)))) s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} idx p mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -32980,10 +32980,10 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -33003,8 +33003,8 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		return true
 	}
 	// match: (OR or:(OR y s0:(SLDconst [j0] r0:(MOVHZreg x0:(MOVHBRloadidx [i0] {s} idx p mem)))) s1:(SLDconst [j1] r1:(MOVHZreg x1:(MOVHBRloadidx [i1] {s} idx p mem))))
-	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
+	// cond: i1 == i0+2 && j1 == j0+16 && j0 % 32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (OR <v.Type> (SLDconst <v.Type> [j0] (MOVWZreg (MOVWBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -33059,10 +33059,10 @@ func rewriteValueS390X_OpS390XOR_150(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+2 && j1 == j0+16 && j0%32 == 0 && x0.Uses == 1 && x1.Uses == 1 && r0.Uses == 1 && r1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(r0) && clobber(r1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XOR, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -33612,8 +33612,8 @@ func rewriteValueS390X_OpS390XORW_10(v *Value) bool {
 		return true
 	}
 	// match: (ORW s0:(SLWconst [j0] x0:(MOVBZload [i0] {s} p mem)) or:(ORW s1:(SLWconst [j1] x1:(MOVBZload [i1] {s} p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -33656,10 +33656,10 @@ func rewriteValueS390X_OpS390XORW_10(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -33676,8 +33676,8 @@ func rewriteValueS390X_OpS390XORW_10(v *Value) bool {
 		return true
 	}
 	// match: (ORW s0:(SLWconst [j0] x0:(MOVBZload [i0] {s} p mem)) or:(ORW y s1:(SLWconst [j1] x1:(MOVBZload [i1] {s} p mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -33720,10 +33720,10 @@ func rewriteValueS390X_OpS390XORW_10(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -33740,8 +33740,8 @@ func rewriteValueS390X_OpS390XORW_10(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW s1:(SLWconst [j1] x1:(MOVBZload [i1] {s} p mem)) y) s0:(SLWconst [j0] x0:(MOVBZload [i0] {s} p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -33784,10 +33784,10 @@ func rewriteValueS390X_OpS390XORW_10(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -33811,8 +33811,8 @@ func rewriteValueS390X_OpS390XORW_20(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORW or:(ORW y s1:(SLWconst [j1] x1:(MOVBZload [i1] {s} p mem))) s0:(SLWconst [j0] x0:(MOVBZload [i0] {s} p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZload [i0] {s} p mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -33855,10 +33855,10 @@ func rewriteValueS390X_OpS390XORW_20(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34746,8 +34746,8 @@ func rewriteValueS390X_OpS390XORW_30(v *Value) bool {
 		return true
 	}
 	// match: (ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) or:(ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -34794,10 +34794,10 @@ func rewriteValueS390X_OpS390XORW_30(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34815,8 +34815,8 @@ func rewriteValueS390X_OpS390XORW_30(v *Value) bool {
 		return true
 	}
 	// match: (ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) or:(ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -34863,10 +34863,10 @@ func rewriteValueS390X_OpS390XORW_30(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34884,8 +34884,8 @@ func rewriteValueS390X_OpS390XORW_30(v *Value) bool {
 		return true
 	}
 	// match: (ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) or:(ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -34932,10 +34932,10 @@ func rewriteValueS390X_OpS390XORW_30(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -34960,8 +34960,8 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) or:(ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) y))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -35008,10 +35008,10 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35029,8 +35029,8 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		return true
 	}
 	// match: (ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) or:(ORW y s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -35077,10 +35077,10 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35098,8 +35098,8 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		return true
 	}
 	// match: (ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) or:(ORW y s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -35146,10 +35146,10 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35167,8 +35167,8 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		return true
 	}
 	// match: (ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) or:(ORW y s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -35215,10 +35215,10 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35236,8 +35236,8 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		return true
 	}
 	// match: (ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) or:(ORW y s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem))))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		s0 := v.Args[0]
@@ -35284,10 +35284,10 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35305,8 +35305,8 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) y) s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -35353,10 +35353,10 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35374,8 +35374,8 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) y) s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -35422,10 +35422,10 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35443,8 +35443,8 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW y s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem))) s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -35491,10 +35491,10 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35512,8 +35512,8 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW y s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem))) s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -35560,10 +35560,10 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35581,8 +35581,8 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) y) s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -35629,10 +35629,10 @@ func rewriteValueS390X_OpS390XORW_40(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35657,8 +35657,8 @@ func rewriteValueS390X_OpS390XORW_50(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORW or:(ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) y) s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -35705,10 +35705,10 @@ func rewriteValueS390X_OpS390XORW_50(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35726,8 +35726,8 @@ func rewriteValueS390X_OpS390XORW_50(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW y s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem))) s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -35774,10 +35774,10 @@ func rewriteValueS390X_OpS390XORW_50(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -35795,8 +35795,8 @@ func rewriteValueS390X_OpS390XORW_50(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW y s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem))) s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)))
-	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
+	// cond: i1 == i0+1 && j1 == j0-8 && j1 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j1] (MOVHZloadidx [i0] {s} p idx mem)) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -35843,10 +35843,10 @@ func rewriteValueS390X_OpS390XORW_50(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(i1 == i0+1 && j1 == j0-8 && j1%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -36080,8 +36080,8 @@ func rewriteValueS390X_OpS390XORW_50(v *Value) bool {
 		return true
 	}
 	// match: (ORW s1:(SLWconst [j1] x1:(MOVBZload [i1] {s} p mem)) or:(ORW s0:(SLWconst [j0] x0:(MOVBZload [i0] {s} p mem)) y))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -36124,10 +36124,10 @@ func rewriteValueS390X_OpS390XORW_50(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -36146,8 +36146,8 @@ func rewriteValueS390X_OpS390XORW_50(v *Value) bool {
 		return true
 	}
 	// match: (ORW s1:(SLWconst [j1] x1:(MOVBZload [i1] {s} p mem)) or:(ORW y s0:(SLWconst [j0] x0:(MOVBZload [i0] {s} p mem))))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -36190,10 +36190,10 @@ func rewriteValueS390X_OpS390XORW_50(v *Value) bool {
 		if mem != x0.Args[1] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x0.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -36212,8 +36212,8 @@ func rewriteValueS390X_OpS390XORW_50(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW s0:(SLWconst [j0] x0:(MOVBZload [i0] {s} p mem)) y) s1:(SLWconst [j1] x1:(MOVBZload [i1] {s} p mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -36256,10 +36256,10 @@ func rewriteValueS390X_OpS390XORW_50(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -36285,8 +36285,8 @@ func rewriteValueS390X_OpS390XORW_60(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORW or:(ORW y s0:(SLWconst [j0] x0:(MOVBZload [i0] {s} p mem))) s1:(SLWconst [j1] x1:(MOVBZload [i1] {s} p mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRload [i0] {s} p mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -36329,10 +36329,10 @@ func rewriteValueS390X_OpS390XORW_60(v *Value) bool {
 		if mem != x1.Args[1] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(x1.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37302,8 +37302,8 @@ func rewriteValueS390X_OpS390XORW_70(v *Value) bool {
 		return true
 	}
 	// match: (ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) or:(ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) y))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -37350,10 +37350,10 @@ func rewriteValueS390X_OpS390XORW_70(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37373,8 +37373,8 @@ func rewriteValueS390X_OpS390XORW_70(v *Value) bool {
 		return true
 	}
 	// match: (ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) or:(ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) y))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -37421,10 +37421,10 @@ func rewriteValueS390X_OpS390XORW_70(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37444,8 +37444,8 @@ func rewriteValueS390X_OpS390XORW_70(v *Value) bool {
 		return true
 	}
 	// match: (ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) or:(ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) y))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -37492,10 +37492,10 @@ func rewriteValueS390X_OpS390XORW_70(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37522,8 +37522,8 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) or:(ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) y))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -37570,10 +37570,10 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 			break
 		}
 		y := or.Args[1]
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37593,8 +37593,8 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		return true
 	}
 	// match: (ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) or:(ORW y s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem))))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -37641,10 +37641,10 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37664,8 +37664,8 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		return true
 	}
 	// match: (ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) or:(ORW y s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem))))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -37712,10 +37712,10 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37735,8 +37735,8 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		return true
 	}
 	// match: (ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)) or:(ORW y s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem))))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -37783,10 +37783,10 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37806,8 +37806,8 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		return true
 	}
 	// match: (ORW s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)) or:(ORW y s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem))))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		s1 := v.Args[0]
@@ -37854,10 +37854,10 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		if mem != x0.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37877,8 +37877,8 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) y) s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -37925,10 +37925,10 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -37948,8 +37948,8 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) y) s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -37996,10 +37996,10 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -38019,8 +38019,8 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW y s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem))) s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -38067,10 +38067,10 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -38090,8 +38090,8 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW y s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem))) s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} p idx mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -38138,10 +38138,10 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -38161,8 +38161,8 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem)) y) s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -38209,10 +38209,10 @@ func rewriteValueS390X_OpS390XORW_80(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -38239,8 +38239,8 @@ func rewriteValueS390X_OpS390XORW_90(v *Value) bool {
 	typ := &b.Func.Config.Types
 	_ = typ
 	// match: (ORW or:(ORW s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem)) y) s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -38287,10 +38287,10 @@ func rewriteValueS390X_OpS390XORW_90(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -38310,8 +38310,8 @@ func rewriteValueS390X_OpS390XORW_90(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW y s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} p idx mem))) s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -38358,10 +38358,10 @@ func rewriteValueS390X_OpS390XORW_90(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
@@ -38381,8 +38381,8 @@ func rewriteValueS390X_OpS390XORW_90(v *Value) bool {
 		return true
 	}
 	// match: (ORW or:(ORW y s0:(SLWconst [j0] x0:(MOVBZloadidx [i0] {s} idx p mem))) s1:(SLWconst [j1] x1:(MOVBZloadidx [i1] {s} idx p mem)))
-	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
-	// result: @mergePoint(b,x0,x1) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
+	// cond: p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0 % 16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b,x0,x1,y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)
+	// result: @mergePoint(b,x0,x1,y) (ORW <v.Type> (SLWconst <v.Type> [j0] (MOVHZreg (MOVHBRloadidx [i0] {s} p idx mem))) y)
 	for {
 		_ = v.Args[1]
 		or := v.Args[0]
@@ -38429,10 +38429,10 @@ func rewriteValueS390X_OpS390XORW_90(v *Value) bool {
 		if mem != x1.Args[2] {
 			break
 		}
-		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
+		if !(p.Op != OpSB && i1 == i0+1 && j1 == j0+8 && j0%16 == 0 && x0.Uses == 1 && x1.Uses == 1 && s0.Uses == 1 && s1.Uses == 1 && or.Uses == 1 && mergePoint(b, x0, x1, y) != nil && clobber(x0) && clobber(x1) && clobber(s0) && clobber(s1) && clobber(or)) {
 			break
 		}
-		b = mergePoint(b, x0, x1)
+		b = mergePoint(b, x0, x1, y)
 		v0 := b.NewValue0(v.Pos, OpS390XORW, v.Type)
 		v.reset(OpCopy)
 		v.AddArg(v0)
diff --git a/test/fixedbugs/issue32680.go b/test/fixedbugs/issue32680.go
new file mode 100644
index 0000000000..27cba6bf78
--- /dev/null
+++ b/test/fixedbugs/issue32680.go
@@ -0,0 +1,23 @@
+// run -gcflags=-d=ssa/check/on
+
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// As of 2019-06, bug affects/ed amd64 and s390x.
+
+package main
+
+var foo = []byte{105, 57, 172, 152}
+
+func main() {
+	for i := 0; i < len(foo); i += 4 {
+		// Requires inlining and non-constant i
+		// Note the bug/fix also apply to different widths, but was unable to reproduce for those.
+		println(readLittleEndian32_2(foo[i], foo[i+1], foo[i+2], foo[i+3]))
+	}
+}
+
+func readLittleEndian32_2(a, b, c, d byte) uint32 {
+	return uint32(a) | (uint32(b) << 8) | (uint32(c) << 16) | (uint32(d) << 24)
+}
diff --git a/test/fixedbugs/issue32680.out b/test/fixedbugs/issue32680.out
new file mode 100644
index 0000000000..4d60a97392
--- /dev/null
+++ b/test/fixedbugs/issue32680.out
@@ -0,0 +1 @@
+2561423721