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runtime: buffered write barrier for 386

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Updates #22460.

Change-Id: I3c8e90fd6bcda7e28911036591873d63665aaca7
Reviewed-on: https://go-review.googlesource.com/92696
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
Austin Clements 2017-11-15 14:54:24 -08:00
parent de186c63ce
commit 252f1170e5
9 changed files with 124 additions and 3 deletions
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6
src/cmd/compile/internal/x86/ssa.go
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@ -691,6 +691,12 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) {
p.To.Type = obj.TYPE_REG
p.To.Reg = v.Reg()
case ssa.Op386LoweredWB:
p := s.Prog(obj.ACALL)
p.To.Type = obj.TYPE_MEM
p.To.Name = obj.NAME_EXTERN
p.To.Sym = v.Aux.(*obj.LSym)
case ssa.Op386CALLstatic, ssa.Op386CALLclosure, ssa.Op386CALLinter:
s.Call(v)
case ssa.Op386NEGL,