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[dev.ssa] cmd/compile: improve error message for phi location mismatch

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Change-Id: I402841743fcdc287631646039eb149f5cfdf886c
Reviewed-on: https://go-review.googlesource.com/13269
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Josh Bleecher Snyder 2015-08-05 16:43:49 -07:00
parent 6548b63d6b
commit 5584523224
1 changed files with 2 additions and 2 deletions
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4
src/cmd/compile/internal/gc/ssa.go
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@ -2111,8 +2111,8 @@ func genValue(v *ssa.Value) {
f := v.Block.Func
loc := f.RegAlloc[v.ID]
for _, a := range v.Args {
if f.RegAlloc[a.ID] != loc { // TODO: .Equal() instead?
v.Fatalf("phi arg at different location than phi %v %v %v %v", v, loc, a, f.RegAlloc[a.ID])
if aloc := f.RegAlloc[a.ID]; aloc != loc { // TODO: .Equal() instead?
v.Fatalf("phi arg at different location than phi: %v @ %v, but arg %v @ %v\n%s\n", v, loc, a, aloc, v.Block.Func)
}
}
case ssa.OpConst8, ssa.OpConst16, ssa.OpConst32, ssa.OpConst64, ssa.OpConstString, ssa.OpConstNil, ssa.OpConstBool: