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cmd/compile: delete register maps, completely

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Remove go115ReduceLiveness feature gating flag, along with code
that only needed when go115ReduceLiveness is false.

Change-Id: I7571913cc74cbd17b330a0ee0160fefc9eeee66e
Reviewed-on: https://go-review.googlesource.com/c/go/+/264338
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Austin Clements <austin@google.com>
This commit is contained in:
Cherry Zhang 2020-10-21 20:15:48 -04:00
parent 89a6540d8a
commit 84d7a85089
8 changed files with 88 additions and 413 deletions
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2
src/cmd/compile/internal/gc/obj.go
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@ -312,7 +312,7 @@ func addGCLocals() {
if fn == nil {
continue
}
for _, gcsym := range []*obj.LSym{fn.GCArgs, fn.GCLocals, fn.GCRegs} {
for _, gcsym := range []*obj.LSym{fn.GCArgs, fn.GCLocals} {
if gcsym != nil && !gcsym.OnList() {
ggloblsym(gcsym, int32(len(gcsym.P)), obj.RODATA|obj.DUPOK)
}