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[dev.link] cmd/compile: make GC map symbols content-addressable

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Change-Id: I20e5b580b3e0505473816fe7f277a74e13d33e64
Reviewed-on: https://go-review.googlesource.com/c/go/+/242080
Reviewed-by: Jeremy Faller <jeremy@golang.org>
This commit is contained in:
Cherry Zhang 2020-07-12 17:15:35 -04:00
parent 27342e5bd9
commit 17344d55d6
2 changed files with 2 additions and 0 deletions
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1
src/cmd/compile/internal/gc/plive.go
View File

@ -1563,6 +1563,7 @@ func (lv *Liveness) emit() (argsSym, liveSym, regsSym *obj.LSym) {
makeSym := func(tmpSym *obj.LSym) *obj.LSym {
return Ctxt.LookupInit(fmt.Sprintf("gclocals·%x", md5.Sum(tmpSym.P)), func(lsym *obj.LSym) {
lsym.P = tmpSym.P
lsym.Set(obj.AttrContentAddressable, true)
})
}
if !go115ReduceLiveness {

1
src/cmd/compile/internal/gc/reflect.go
View File

@ -1715,6 +1715,7 @@ func dgcptrmask(t *types.Type) *obj.LSym {
duint8(lsym, i, x)
}
ggloblsym(lsym, int32(len(ptrmask)), obj.DUPOK|obj.RODATA|obj.LOCAL)
lsym.Set(obj.AttrContentAddressable, true)
}
return lsym
}