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path: root/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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Diffstat (limited to 'lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
-rw-r--r--lib/CodeGen/SelectionDAG/DAGCombiner.cpp9
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 3e53ae0ed3..c30a222b4a 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -407,8 +407,13 @@ void DAGCombiner::Run(bool RunningAfterLegalize) {
std::cerr << "\nWith: "; RV.Val->dump(&DAG);
std::cerr << '\n');
std::vector<SDNode*> NowDead;
- SDOperand OpV = RV;
- DAG.ReplaceAllUsesWith(N, &OpV, &NowDead);
+ if (N->getNumValues() == RV.Val->getNumValues())
+ DAG.ReplaceAllUsesWith(N, RV.Val, &NowDead);
+ else {
+ assert(N->getValueType(0) == RV.getValueType() && "Type mismatch");
+ SDOperand OpV = RV;
+ DAG.ReplaceAllUsesWith(N, &OpV, &NowDead);
+ }
// Push the new node and any users onto the worklist
WorkList.push_back(RV.Val);