diff options
Diffstat (limited to 'src/cmd/compile/internal/ssa/rewriteARM.go')
| -rw-r--r-- | src/cmd/compile/internal/ssa/rewriteARM.go | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/src/cmd/compile/internal/ssa/rewriteARM.go b/src/cmd/compile/internal/ssa/rewriteARM.go index 3d2f862705..6807507218 100644 --- a/src/cmd/compile/internal/ssa/rewriteARM.go +++ b/src/cmd/compile/internal/ssa/rewriteARM.go @@ -338,6 +338,8 @@ func rewriteValueARM(v *Value) bool { return rewriteValueARM_OpARMSRL(v) case OpARMSRLconst: return rewriteValueARM_OpARMSRLconst(v) + case OpARMSRR: + return rewriteValueARM_OpARMSRR(v) case OpARMSUB: return rewriteValueARM_OpARMSUB(v) case OpARMSUBD: @@ -10523,6 +10525,24 @@ func rewriteValueARM_OpARMSRLconst(v *Value) bool { } return false } +func rewriteValueARM_OpARMSRR(v *Value) bool { + v_1 := v.Args[1] + v_0 := v.Args[0] + // match: (SRR x (MOVWconst [c])) + // result: (SRRconst x [c&31]) + for { + x := v_0 + if v_1.Op != OpARMMOVWconst { + break + } + c := auxIntToInt32(v_1.AuxInt) + v.reset(OpARMSRRconst) + v.AuxInt = int32ToAuxInt(c & 31) + v.AddArg(x) + return true + } + return false +} func rewriteValueARM_OpARMSUB(v *Value) bool { v_1 := v.Args[1] v_0 := v.Args[0] @@ -14904,19 +14924,6 @@ func rewriteValueARM_OpRotateLeft32(v *Value) bool { v_1 := v.Args[1] v_0 := v.Args[0] b := v.Block - // match: (RotateLeft32 x (MOVWconst [c])) - // result: (SRRconst [-c&31] x) - for { - x := v_0 - if v_1.Op != OpARMMOVWconst { - break - } - c := auxIntToInt32(v_1.AuxInt) - v.reset(OpARMSRRconst) - v.AuxInt = int32ToAuxInt(-c & 31) - v.AddArg(x) - return true - } // match: (RotateLeft32 x y) // result: (SRR x (RSBconst [0] <y.Type> y)) for { |