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Use getValue() for PHINodes when direct NodeMap access does not work.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103126 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2010-05-05 22:29:00 +00:00
parent 7d2552135d
commit d47f3c803f
1 changed files with 15 additions and 1 deletions
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16
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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@ -3900,6 +3900,8 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
SDV = DAG.getDbgValue(Variable, V, Offset, dl, SDNodeOrder);
DAG.AddDbgValue(SDV, 0, false);
} else {
bool createUndef = false;
// FIXME : Why not use getValue() directly ?
SDValue &N = NodeMap[V];
if (N.getNode()) {
if (!EmitFuncArgumentDbgValue(DI, V, Variable, Offset, N)) {
@ -3907,7 +3909,19 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
N.getResNo(), Offset, dl, SDNodeOrder);
DAG.AddDbgValue(SDV, N.getNode(), false);
}
} else {
} else if (isa<PHINode>(V) && !V->use_empty()) {
SDValue N = getValue(V);
if (N.getNode()) {
if (!EmitFuncArgumentDbgValue(DI, V, Variable, Offset, N)) {
SDV = DAG.getDbgValue(Variable, N.getNode(),
N.getResNo(), Offset, dl, SDNodeOrder);
DAG.AddDbgValue(SDV, N.getNode(), false);
}
} else
createUndef = true;
} else
createUndef = true;
if (createUndef) {
// We may expand this to cover more cases. One case where we have no
// data available is an unreferenced parameter; we need this fallback.
SDV = DAG.getDbgValue(Variable, UndefValue::get(V->getType()),