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Use a DenseMap instead of a std::map for AnalysisID -> Pass* maps. This reduces the pass-manager overhead from FPPassManager::runOnFunction() by about 10%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176072 91177308-0d34-0410-b5e6-96231b3b80d8
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@@ -874,9 +874,9 @@ void PMDataManager::removeNotPreservedAnalysis(Pass *P) {
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return;
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const AnalysisUsage::VectorType &PreservedSet = AnUsage->getPreservedSet();
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for (std::map<AnalysisID, Pass*>::iterator I = AvailableAnalysis.begin(),
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for (DenseMap<AnalysisID, Pass*>::iterator I = AvailableAnalysis.begin(),
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E = AvailableAnalysis.end(); I != E; ) {
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std::map<AnalysisID, Pass*>::iterator Info = I++;
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DenseMap<AnalysisID, Pass*>::iterator Info = I++;
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if (Info->second->getAsImmutablePass() == 0 &&
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std::find(PreservedSet.begin(), PreservedSet.end(), Info->first) ==
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PreservedSet.end()) {
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@@ -897,10 +897,10 @@ void PMDataManager::removeNotPreservedAnalysis(Pass *P) {
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if (!InheritedAnalysis[Index])
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continue;
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for (std::map<AnalysisID, Pass*>::iterator
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for (DenseMap<AnalysisID, Pass*>::iterator
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I = InheritedAnalysis[Index]->begin(),
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E = InheritedAnalysis[Index]->end(); I != E; ) {
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std::map<AnalysisID, Pass *>::iterator Info = I++;
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DenseMap<AnalysisID, Pass *>::iterator Info = I++;
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if (Info->second->getAsImmutablePass() == 0 &&
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std::find(PreservedSet.begin(), PreservedSet.end(), Info->first) ==
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PreservedSet.end()) {
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@@ -960,7 +960,7 @@ void PMDataManager::freePass(Pass *P, StringRef Msg,
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// listed as the available implementation.
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const std::vector<const PassInfo*> &II = PInf->getInterfacesImplemented();
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for (unsigned i = 0, e = II.size(); i != e; ++i) {
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std::map<AnalysisID, Pass*>::iterator Pos =
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DenseMap<AnalysisID, Pass*>::iterator Pos =
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AvailableAnalysis.find(II[i]->getTypeInfo());
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if (Pos != AvailableAnalysis.end() && Pos->second == P)
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AvailableAnalysis.erase(Pos);
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@@ -1100,7 +1100,7 @@ void PMDataManager::initializeAnalysisImpl(Pass *P) {
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Pass *PMDataManager::findAnalysisPass(AnalysisID AID, bool SearchParent) {
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// Check if AvailableAnalysis map has one entry.
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std::map<AnalysisID, Pass*>::const_iterator I = AvailableAnalysis.find(AID);
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DenseMap<AnalysisID, Pass*>::const_iterator I = AvailableAnalysis.find(AID);
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if (I != AvailableAnalysis.end())
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return I->second;
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