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(Almost) always call reserveOperandSpace() on newly created PHINodes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128535 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jay Foad
2011-03-30 11:19:20 +00:00
parent 8be7d8b43c
commit d8b4fb4aab
26 changed files with 54 additions and 21 deletions
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lib/Transforms/Instrumentation/PathProfiling.cpp
+4 -2
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@@ -929,14 +929,16 @@ BasicBlock::iterator PathProfiler::getInsertionPoint(BasicBlock* block, Value*
void PathProfiler::preparePHI(BLInstrumentationNode* node) {
BasicBlock* block = node->getBlock();
BasicBlock::iterator insertPoint = block->getFirstNonPHI();
pred_iterator PB = pred_begin(node->getBlock()),
PE = pred_end(node->getBlock());
PHINode* phi = PHINode::Create(Type::getInt32Ty(*Context), "pathNumber",
insertPoint );
phi->reserveOperandSpace(std::distance(PB, PE));
node->setPathPHI(phi);
node->setStartingPathNumber(phi);
node->setEndingPathNumber(phi);
for(pred_iterator predIt = pred_begin(node->getBlock()),
end = pred_end(node->getBlock()); predIt != end; predIt++) {
for(pred_iterator predIt = PB; predIt != PE; predIt++) {
BasicBlock* pred = (*predIt);
if(pred != NULL)