diff options
Diffstat (limited to 'src/cmd/compile/internal/arm64/ssa.go')
| -rw-r--r-- | src/cmd/compile/internal/arm64/ssa.go | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/src/cmd/compile/internal/arm64/ssa.go b/src/cmd/compile/internal/arm64/ssa.go index 1d6ea6b9d8..5c695ef84c 100644 --- a/src/cmd/compile/internal/arm64/ssa.go +++ b/src/cmd/compile/internal/arm64/ssa.go @@ -688,15 +688,23 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) { p5.To.Reg = out gc.Patch(p2, p5) case ssa.OpARM64LoweredAtomicAnd8, - ssa.OpARM64LoweredAtomicOr8: - // LDAXRB (Rarg0), Rout + ssa.OpARM64LoweredAtomicAnd32, + ssa.OpARM64LoweredAtomicOr8, + ssa.OpARM64LoweredAtomicOr32: + // LDAXRB/LDAXRW (Rarg0), Rout // AND/OR Rarg1, Rout - // STLXRB Rout, (Rarg0), Rtmp + // STLXRB/STLXRB Rout, (Rarg0), Rtmp // CBNZ Rtmp, -3(PC) + ld := arm64.ALDAXRB + st := arm64.ASTLXRB + if v.Op == ssa.OpARM64LoweredAtomicAnd32 || v.Op == ssa.OpARM64LoweredAtomicOr32 { + ld = arm64.ALDAXRW + st = arm64.ASTLXRW + } r0 := v.Args[0].Reg() r1 := v.Args[1].Reg() out := v.Reg0() - p := s.Prog(arm64.ALDAXRB) + p := s.Prog(ld) p.From.Type = obj.TYPE_MEM p.From.Reg = r0 p.To.Type = obj.TYPE_REG @@ -706,7 +714,7 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) { p1.From.Reg = r1 p1.To.Type = obj.TYPE_REG p1.To.Reg = out - p2 := s.Prog(arm64.ASTLXRB) + p2 := s.Prog(st) p2.From.Type = obj.TYPE_REG p2.From.Reg = out p2.To.Type = obj.TYPE_MEM |