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Fix the pass manager's search order for immutable passes, and make it

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stop searching when it has found a match.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116262 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2010-10-11 23:19:01 +00:00
parent 42fac8ee3b
commit 7c34730fb9
1 changed files with 20 additions and 21 deletions
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41
lib/VMCore/PassManager.cpp
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@ -612,41 +612,40 @@ void PMTopLevelManager::schedulePass(Pass *P) {
/// then return NULL.
Pass *PMTopLevelManager::findAnalysisPass(AnalysisID AID) {
Pass *P = NULL;
// Check pass managers
for (SmallVector<PMDataManager *, 8>::iterator I = PassManagers.begin(),
E = PassManagers.end(); P == NULL && I != E; ++I) {
PMDataManager *PMD = *I;
P = PMD->findAnalysisPass(AID, false);
}
E = PassManagers.end(); I != E; ++I)
if (Pass *P = (*I)->findAnalysisPass(AID, false))
return P;
// Check other pass managers
for (SmallVector<PMDataManager *, 8>::iterator
I = IndirectPassManagers.begin(),
E = IndirectPassManagers.end(); P == NULL && I != E; ++I)
P = (*I)->findAnalysisPass(AID, false);
E = IndirectPassManagers.end(); I != E; ++I)
if (Pass *P = (*I)->findAnalysisPass(AID, false))
return P;
for (SmallVector<ImmutablePass *, 8>::iterator I = ImmutablePasses.begin(),
E = ImmutablePasses.end(); P == NULL && I != E; ++I) {
// Check the immutable passes. Iterate in reverse order so that we find
// the most recently registered passes first.
for (SmallVector<ImmutablePass *, 8>::reverse_iterator I =
ImmutablePasses.rbegin(), E = ImmutablePasses.rend(); I != E; ++I) {
AnalysisID PI = (*I)->getPassID();
if (PI == AID)
P = *I;
return *I;
// If Pass not found then check the interfaces implemented by Immutable Pass
if (!P) {
const PassInfo *PassInf =
PassRegistry::getPassRegistry()->getPassInfo(PI);
const std::vector<const PassInfo*> &ImmPI =
PassInf->getInterfacesImplemented();
for (std::vector<const PassInfo*>::const_iterator II = ImmPI.begin(),
EE = ImmPI.end(); II != EE; ++II) {
if ((*II)->getTypeInfo() == AID)
P = *I;
}
const PassInfo *PassInf =
PassRegistry::getPassRegistry()->getPassInfo(PI);
const std::vector<const PassInfo*> &ImmPI =
PassInf->getInterfacesImplemented();
for (std::vector<const PassInfo*>::const_iterator II = ImmPI.begin(),
EE = ImmPI.end(); II != EE; ++II) {
if ((*II)->getTypeInfo() == AID)
return *I;
}
}
return P;
return 0;
}
// Print passes managed by this top level manager.