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Revert "cmd/compile: cleanup nodpc and nodfp"

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This reverts commit dcac984b97.

Reason for revert: broke LR architectures (arm64, ppc64, s390x)

Change-Id: I531d311c9053e81503c8c78d6cf044b318fc828b
Reviewed-on: https://go-review.googlesource.com/99695
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
This commit is contained in:
Matthew Dempsky 2018-03-08 21:00:36 +00:00
parent 010579c237
commit b55eedd173
9 changed files with 270 additions and 261 deletions
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7
src/cmd/compile/internal/gc/pgen.go
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@ -131,7 +131,12 @@ func (s *ssafn) AllocFrame(f *ssa.Func) {
for _, v := range b.Values {
if n, ok := v.Aux.(*Node); ok {
switch n.Class() {
case PAUTO, PPARAM, PPARAMOUT:
case PPARAM, PPARAMOUT:
// Don't modify nodfp; it is a global.
if n != nodfp {
n.Name.SetUsed(true)
}
case PAUTO:
n.Name.SetUsed(true)
}
}