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[dev.ssa] cmd/compile: implement PPARAMREF

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This also fixes the encoding/gob TestTopLevelNilPointer failure.

Change-Id: I9b29a6fddffd51af305c685f3a8e2a0594bfeeab
Reviewed-on: https://go-review.googlesource.com/14032
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Josh Bleecher Snyder 2015-08-28 13:35:32 -07:00
parent 47d6799b0f
commit 9654873a76
1 changed files with 3 additions and 5 deletions
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8
src/cmd/compile/internal/gc/ssa.go
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@ -1800,7 +1800,7 @@ func (s *state) addr(n *Node) *ssa.Value {
s.Fatalf("addr of undeclared ONAME %v. declared: %v", n, s.decladdrs)
}
return v
case PAUTO | PHEAP:
case PAUTO | PHEAP, PPARAMREF:
return s.expr(n.Name.Heapaddr)
default:
s.Unimplementedf("variable address class %v not implemented", n.Class)
@ -1864,10 +1864,8 @@ func canSSA(n *Node) bool {
if n.Class&PHEAP != 0 {
return false
}
if n.Class == PEXTERN {
return false
}
if n.Class == PPARAMOUT {
switch n.Class {
case PEXTERN, PPARAMOUT, PPARAMREF:
return false
}
return canSSAType(n.Type)