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Copy initializeAnalysisImpl() implementation from PassManagerT.

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Update LastUser to recursively walk required transitive set.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31741 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2006-11-14 21:49:36 +00:00
parent 0d1bb1322c
commit 2f42ed6b0b
1 changed files with 39 additions and 2 deletions
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41
lib/VMCore/PassManager.cpp
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@ -72,7 +72,7 @@ public:
// successfully use the getAnalysis() method to retrieve the
// implementations it needs.
//
inline void initializeAnalysisImpl(Pass *P) { /* TODO : Implement */ }
void initializeAnalysisImpl(Pass *P);
inline std::vector<Pass *>::iterator passVectorBegin() {
return PassVector.begin();
@ -82,7 +82,23 @@ public:
return PassVector.end();
}
inline void setLastUser(Pass *P, Pass *LU) { LastUser[P] = LU; }
inline void setLastUser(Pass *P, Pass *LU) {
LastUser[P] = LU;
// TODO : Check if pass P is available.
// Prolong live range of analyses that are needed after an analysis pass
// is destroyed, for querying by subsequent passes
AnalysisUsage AnUsage;
P->getAnalysisUsage(AnUsage);
const std::vector<AnalysisID> &IDs = AnUsage.getRequiredTransitiveSet();
for (std::vector<AnalysisID>::const_iterator I = IDs.begin(),
E = IDs.end(); I != E; ++I) {
Pass *AnalysisPass = getAnalysisPass(*I); // getAnalysisPassFromManager(*I);
assert (AnalysisPass && "Analysis pass is not available");
setLastUser(AnalysisPass, LU);
}
}
private:
// Analysis required by the passes managed by this manager. This information
@ -258,6 +274,8 @@ void CommonPassManagerImpl::noteDownRequiredAnalysis(Pass *P) {
// FIXME: What about duplicates ?
RequiredAnalysis.insert(RequiredAnalysis.end(), RequiredSet.begin(),
RequiredSet.end());
initializeAnalysisImpl(P);
}
/// Augement AvailableAnalysis by adding analysis made available by pass P.
@ -329,6 +347,25 @@ void CommonPassManagerImpl::addPassToManager (Pass *P,
PassVector.push_back(P);
}
// All Required analyses should be available to the pass as it runs! Here
// we fill in the AnalysisImpls member of the pass so that it can
// successfully use the getAnalysis() method to retrieve the
// implementations it needs.
//
void CommonPassManagerImpl::initializeAnalysisImpl(Pass *P) {
AnalysisUsage AnUsage;
P->getAnalysisUsage(AnUsage);
for (std::vector<const PassInfo *>::const_iterator
I = AnUsage.getRequiredSet().begin(),
E = AnUsage.getRequiredSet().end(); I != E; ++I) {
Pass *Impl = getAnalysisPass(*I);
if (Impl == 0)
assert(0 && "Analysis used but not available!");
// TODO: P->AnalysisImpls.push_back(std::make_pair(*I, Impl));
}
}
/// BasicBlockPassManager implementation
/// Add pass P into PassVector and return true. If this pass is not