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Before deleting a basic block, give other loop passes a chance cleanup analysis values, related to the instructions in the basic block.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67719 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2009-03-25 23:57:48 +00:00
parent 54f302272c
commit 575ec806e0
3 changed files with 47 additions and 1 deletions
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7
lib/Analysis/LoopPass.cpp
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@@ -152,6 +152,13 @@ void LPPassManager::cloneBasicBlockSimpleAnalysis(BasicBlock *From,
/// deleteSimpleAnalysisValue - Invoke deleteAnalysisValue hook for all passes.
void LPPassManager::deleteSimpleAnalysisValue(Value *V, Loop *L) {
if (BasicBlock *BB = dyn_cast<BasicBlock>(V)) {
for (BasicBlock::iterator BI = BB->begin(), BE = BB->end(); BI != BE;
++BI) {
Instruction &I = *BI;
deleteSimpleAnalysisValue(&I, L);
}
}
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
Pass *P = getContainedPass(Index);
LoopPass *LP = dynamic_cast<LoopPass *>(P);