memoize all nodes, even null Value* nodes. Do not add two token chain outputs
llvm-svn: 21805
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 965976c..c9ce796 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1328,13 +1328,11 @@
return SDOperand(N, 0);
}
-SDOperand SelectionDAG::getSrcValue(const Value* v, int offset) {
- if (v && ValueNodes[std::make_pair(v,offset)])
- return SDOperand(ValueNodes[std::make_pair(v,offset)], 0);
- SDNode *N = new SrcValueSDNode(v, offset);
- N->setValueTypes(MVT::Other);
- if (v) //only track non-null values
- ValueNodes[std::make_pair(v,offset)] = N;
+SDOperand SelectionDAG::getSrcValue(const Value *V, int Offset) {
+ SDNode *&N = ValueNodes[std::make_pair(V, Offset)];
+ if (N) return SDOperand(N, 0);
+
+ N = new SrcValueSDNode(V, Offset);
AllNodes.push_back(N);
return SDOperand(N, 0);
}