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| author | Austin Clements <austin@google.com> | 2019-10-23 10:20:49 -0400 |
|---|---|---|
| committer | Austin Clements <austin@google.com> | 2019-10-29 03:18:55 +0000 |
| commit | 97592b3c14e96eece91ddc91a188e08fd2ed2dfa (patch) | |
| tree | 0b02a072954e9b17a0869e7b291613c0e4ad06c2 /src/cmd/compile/internal/ssa/rewriteS390X.go | |
| parent | d2101e54908dc6899863be0772658dbd7e0bbc71 (diff) | |
| download | go-97592b3c14e96eece91ddc91a188e08fd2ed2dfa.tar.gz go-97592b3c14e96eece91ddc91a188e08fd2ed2dfa.zip | |
cmd/compile: intrinsics for runtime/internal/atomic.Store8
For #10958, #24543, but makes sense on its own.
Change-Id: I2a87dab66b82a1863e4b6512b1f8def51463ce2a
Reviewed-on: https://go-review.googlesource.com/c/go/+/203284
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Diffstat (limited to 'src/cmd/compile/internal/ssa/rewriteS390X.go')
| -rw-r--r-- | src/cmd/compile/internal/ssa/rewriteS390X.go | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/ssa/rewriteS390X.go b/src/cmd/compile/internal/ssa/rewriteS390X.go index 343a7381ea..645e8f2d9a 100644 --- a/src/cmd/compile/internal/ssa/rewriteS390X.go +++ b/src/cmd/compile/internal/ssa/rewriteS390X.go @@ -60,6 +60,8 @@ func rewriteValueS390X(v *Value) bool { return rewriteValueS390X_OpAtomicStore32_0(v) case OpAtomicStore64: return rewriteValueS390X_OpAtomicStore64_0(v) + case OpAtomicStore8: + return rewriteValueS390X_OpAtomicStore8_0(v) case OpAtomicStorePtrNoWB: return rewriteValueS390X_OpAtomicStorePtrNoWB_0(v) case OpAtomicStoreRel32: @@ -1153,6 +1155,23 @@ func rewriteValueS390X_OpAtomicStore64_0(v *Value) bool { return true } } +func rewriteValueS390X_OpAtomicStore8_0(v *Value) bool { + b := v.Block + // match: (AtomicStore8 ptr val mem) + // result: (SYNC (MOVBatomicstore ptr val mem)) + for { + mem := v.Args[2] + ptr := v.Args[0] + val := v.Args[1] + v.reset(OpS390XSYNC) + v0 := b.NewValue0(v.Pos, OpS390XMOVBatomicstore, types.TypeMem) + v0.AddArg(ptr) + v0.AddArg(val) + v0.AddArg(mem) + v.AddArg(v0) + return true + } +} func rewriteValueS390X_OpAtomicStorePtrNoWB_0(v *Value) bool { b := v.Block // match: (AtomicStorePtrNoWB ptr val mem) |