diff options
Diffstat (limited to 'src/cmd/compile/internal/gc/ssa.go')
| -rw-r--r-- | src/cmd/compile/internal/gc/ssa.go | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go index 2e7d45d543..997e972e0a 100644 --- a/src/cmd/compile/internal/gc/ssa.go +++ b/src/cmd/compile/internal/gc/ssa.go @@ -3953,8 +3953,9 @@ type SSAGenState struct { bstart []*obj.Prog // 387 port: maps from SSE registers (REG_X?) to 387 registers (REG_F?) - SSEto387 map[int16]int16 - Scratch387 *Node + SSEto387 map[int16]int16 + // Some architectures require a 64-bit temporary for FP-related register shuffling. Examples include x86-387, PPC, and Sparc V8. + ScratchFpMem *Node } // Pc returns the current Prog. @@ -3993,7 +3994,9 @@ func genssa(f *ssa.Func, ptxt *obj.Prog, gcargs, gclocals *Sym) { if Thearch.Use387 { s.SSEto387 = map[int16]int16{} - s.Scratch387 = temp(Types[TUINT64]) + } + if f.Config.NeedsFpScratch { + s.ScratchFpMem = temp(Types[TUINT64]) } // Emit basic blocks |