diff options
Diffstat (limited to 'src/cmd/compile/internal/x86/ssa.go')
| -rw-r--r-- | src/cmd/compile/internal/x86/ssa.go | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/x86/ssa.go b/src/cmd/compile/internal/x86/ssa.go index 03ab8d3af3..e941e6cda7 100644 --- a/src/cmd/compile/internal/x86/ssa.go +++ b/src/cmd/compile/internal/x86/ssa.go @@ -139,6 +139,13 @@ func opregreg(op obj.As, dest, src int16) *obj.Prog { func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) { s.SetLineno(v.Line) + + if gc.Thearch.Use387 { + if ssaGenValue387(s, v) { + return // v was handled by 387 generation. + } + } + switch v.Op { case ssa.Op386ADDL: r := gc.SSARegNum(v) @@ -899,6 +906,11 @@ var nefJumps = [2][2]gc.FloatingEQNEJump{ func ssaGenBlock(s *gc.SSAGenState, b, next *ssa.Block) { s.SetLineno(b.Line) + if gc.Thearch.Use387 { + // Empty the 387's FP stack before the block ends. + flush387(s) + } + switch b.Kind { case ssa.BlockPlain, ssa.BlockCall, ssa.BlockCheck: if b.Succs[0].Block() != next { |