diff options
Diffstat (limited to 'src/cmd/compile/internal/x86/387.go')
| -rw-r--r-- | src/cmd/compile/internal/x86/387.go | 35 |
1 files changed, 13 insertions, 22 deletions
diff --git a/src/cmd/compile/internal/x86/387.go b/src/cmd/compile/internal/x86/387.go index 96a7d63082..bd0971cf4e 100644 --- a/src/cmd/compile/internal/x86/387.go +++ b/src/cmd/compile/internal/x86/387.go @@ -29,6 +29,14 @@ func ssaGenValue387(s *gc.SSAGenState, v *ssa.Value) bool { p.To.Reg = x86.REG_F0 popAndSave(s, v) return true + case ssa.Op386MOVSSconst2, ssa.Op386MOVSDconst2: + p := gc.Prog(loadPush(v.Type)) + p.From.Type = obj.TYPE_MEM + p.From.Reg = gc.SSARegNum(v.Args[0]) + p.To.Type = obj.TYPE_REG + p.To.Reg = x86.REG_F0 + popAndSave(s, v) + return true case ssa.Op386MOVSSload, ssa.Op386MOVSDload, ssa.Op386MOVSSloadidx1, ssa.Op386MOVSDloadidx1, ssa.Op386MOVSSloadidx4, ssa.Op386MOVSDloadidx8: p := gc.Prog(loadPush(v.Type)) @@ -183,28 +191,11 @@ func ssaGenValue387(s *gc.SSAGenState, v *ssa.Value) bool { popAndSave(s, v) return true - case ssa.Op386PXOR: - a0 := v.Args[0] - a1 := v.Args[1] - for a0.Op == ssa.OpCopy { - a0 = a0.Args[0] - } - for a1.Op == ssa.OpCopy { - a1 = a1.Args[0] - } - if (a0.Op == ssa.Op386MOVSSconst || a0.Op == ssa.Op386MOVSDconst) && a0.AuxInt == -0x8000000000000000 { - push(s, v.Args[1]) - gc.Prog(x86.AFCHS) - popAndSave(s, v) - return true - } - if (a1.Op == ssa.Op386MOVSSconst || a1.Op == ssa.Op386MOVSDconst) && a1.AuxInt == -0x8000000000000000 { - push(s, v.Args[0]) - gc.Prog(x86.AFCHS) - popAndSave(s, v) - return true - } - v.Fatalf("PXOR not used to change sign %s", v.LongString()) + case ssa.Op386FCHS: + push(s, v.Args[0]) + gc.Prog(x86.AFCHS) + popAndSave(s, v) + return true case ssa.Op386CVTSL2SS, ssa.Op386CVTSL2SD: p := gc.Prog(x86.AMOVL) |