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Remove analysis that is not preserved by the pass from AvailableAnalysis.

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llvm-svn: 31665
This commit is contained in:
Devang Patel 2006-11-11 01:24:55 +00:00
parent 124cfa3f26
commit 9e926cd9f8
1 changed files with 27 additions and 2 deletions
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29
lib/VMCore/PassManager.cpp
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@ -171,7 +171,8 @@ void CommonPassManagerImpl::noteDownRequiredAnalysis(Pass *P) {
const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet();
// FIXME: What about duplicates ?
RequiredAnalysis.insert(RequiredAnalysis.end(), RequiredSet.begin(), RequiredSet.end());
RequiredAnalysis.insert(RequiredAnalysis.end(), RequiredSet.begin(),
RequiredSet.end());
}
/// Augement AvailableAnalysis by adding analysis made available by pass P.
@ -197,8 +198,20 @@ void CommonPassManagerImpl::removeAnalysis(AnalysisID AID) {
/// Remove Analyss not preserved by Pass P
void CommonPassManagerImpl::removeNotPreservedAnalysis(Pass *P) {
AnalysisUsage AnUsage;
P->getAnalysisUsage(AnUsage);
const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet();
// TODO
for (std::set<AnalysisID>::iterator I = AvailableAnalysis.begin(),
E = AvailableAnalysis.end(); I != E; ++I ) {
AnalysisID AID = *I;
if (std::find(PreservedSet.begin(), PreservedSet.end(), *I) ==
PreservedSet.end()) {
// Remove this analysis
std::set<AnalysisID>::iterator J = I++;
AvailableAnalysis.erase(J);
}
}
}
/// BasicBlockPassManager implementation
@ -223,6 +236,10 @@ BasicBlockPassManager_New::addPass(Pass *P) {
// Add pass
PassVector.push_back(BP);
// Remove the analysis not preserved by this pass
removeNotPreservedAnalysis(P);
return true;
}
@ -306,6 +323,10 @@ FunctionPassManagerImpl_New::addPass(Pass *P) {
noteDownAvailableAnalysis(P);
PassVector.push_back(FP);
// Remove the analysis not preserved by this pass
removeNotPreservedAnalysis(P);
activeBBPassManager = NULL;
return true;
}
@ -367,6 +388,10 @@ ModulePassManager_New::addPass(Pass *P) {
noteDownAvailableAnalysis(P);
PassVector.push_back(MP);
// Remove the analysis not preserved by this pass
removeNotPreservedAnalysis(P);
activeFunctionPassManager = NULL;
return true;
}