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path: root/lib/Transforms/InstCombine/InstCombineCasts.cpp
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-rw-r--r--lib/Transforms/InstCombine/InstCombineCasts.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineCasts.cpp b/lib/Transforms/InstCombine/InstCombineCasts.cpp
index dcf7be1a91..9976d82b8b 100644
--- a/lib/Transforms/InstCombine/InstCombineCasts.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCasts.cpp
@@ -197,6 +197,7 @@ Value *InstCombiner::EvaluateInDifferentType(Value *V, const Type *Ty,
case Instruction::PHI: {
PHINode *OPN = cast<PHINode>(I);
PHINode *NPN = PHINode::Create(Ty);
+ NPN->reserveOperandSpace(OPN->getNumIncomingValues());
for (unsigned i = 0, e = OPN->getNumIncomingValues(); i != e; ++i) {
Value *V =EvaluateInDifferentType(OPN->getIncomingValue(i), Ty, isSigned);
NPN->addIncoming(V, OPN->getIncomingBlock(i));