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reserve operand space for phi nodes when we insert them. 

llvm-svn: 40820
This commit is contained in:
Chris Lattner 2007-08-04 20:14:34 +00:00
parent 9318785df5
commit 050bac4bed
1 changed files with 1 additions and 0 deletions
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llvm/lib/Transforms/Utils/PromoteMemoryToRegister.cpp
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@ -772,6 +772,7 @@ bool PromoteMem2Reg::QueuePhiNode(BasicBlock *BB, unsigned AllocaNo,
Allocas[AllocaNo]->getName() + "." + Allocas[AllocaNo]->getName() + "." +
utostr(Version++), BB->begin()); utostr(Version++), BB->begin());
PhiToAllocaMap[PN] = AllocaNo; PhiToAllocaMap[PN] = AllocaNo;
PN->reserveOperandSpace(std::distance(pred_begin(BB), pred_end(BB)));
InsertedPHINodes.insert(PN); InsertedPHINodes.insert(PN);