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cmd/compile: eliminate OASWB

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Instead we can just call needwritebarrier when constructing the SSA
representation.

Change-Id: I6fefaad49daada9cdb3050f112889e49dca0047b
Reviewed-on: https://go-review.googlesource.com/34566
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
Matthew Dempsky 2016-12-19 10:30:44 -08:00
parent e7ec06e000
commit bdb9b945b9
11 changed files with 17 additions and 40 deletions
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1
src/cmd/compile/internal/gc/syntax.go
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@ -361,7 +361,6 @@ const (
OAS2MAPR // List = Rlist (x, ok = m["foo"])
OAS2DOTTYPE // List = Rlist (x, ok = I.(int))
OASOP // Left Etype= Right (x += y)
OASWB // Left = Right (with write barrier)
OCALL // Left(List) (function call, method call or type conversion)
OCALLFUNC // Left(List) (function call f(args))
OCALLMETH // Left(List) (direct method call x.Method(args))