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[dev.regabi] cmd/compile: remove a couple CloneName calls

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In inl.go, that code path is unused, since we added ir.BasicLit to
represent unnamed OLITERALs.

In race.go, rather than cloning ir.RegFP, we can just create it from
scratch again.

Passes toolstash -cmp (incl. w/ -race).

Change-Id: I8e063e4898d2acf056ceca5bc03df6b40a14eca9
Reviewed-on: https://go-review.googlesource.com/c/go/+/281192
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
This commit is contained in:
Matthew Dempsky 2021-01-03 00:53:51 -08:00
parent 907a4bfdc7
commit 8fc44cf0fa
2 changed files with 5 additions and 10 deletions
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9
src/cmd/compile/internal/inline/inl.go
View File

@ -1096,15 +1096,6 @@ func (subst *inlsubst) node(n ir.Node) ir.Node {
if n.Sym() != nil {
return n
}
if n, ok := n.(*ir.Name); ok && n.Op() == ir.OLITERAL {
// This happens for unnamed OLITERAL.
// which should really not be a *Name, but for now it is.
// ir.Copy(n) is not allowed generally and would panic below,
// but it's OK in this situation.
n = n.CloneName()
n.SetPos(subst.updatedPos(n.Pos()))
return n
}
case ir.ORETURN:
// Since we don't handle bodies with closures,

6
src/cmd/compile/internal/walk/race.go
View File

@ -8,6 +8,7 @@ import (
"cmd/compile/internal/base"
"cmd/compile/internal/ir"
"cmd/compile/internal/ssagen"
"cmd/compile/internal/typecheck"
"cmd/compile/internal/types"
"cmd/internal/src"
"cmd/internal/sys"
@ -36,7 +37,10 @@ func instrument(fn *ir.Func) {
// This only works for amd64. This will not
// work on arm or others that might support
// race in the future.
nodpc := ir.RegFP.CloneName()
nodpc := ir.NewNameAt(src.NoXPos, typecheck.Lookup(".fp"))
nodpc.Class_ = ir.PPARAM
nodpc.SetUsed(true)
nodpc.SetType(types.Types[types.TUINTPTR])
nodpc.SetFrameOffset(int64(-types.PtrSize))
fn.Dcl = append(fn.Dcl, nodpc)