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Tidy up marking of last analysis user pass. 

llvm-svn: 31746
This commit is contained in:
Devang Patel 2006-11-15 01:48:14 +00:00
parent ff631ae600
commit 4a3fa4ff26
1 changed files with 11 additions and 15 deletions
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26
llvm/lib/VMCore/PassManager.cpp
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@ -83,22 +83,9 @@ public:
return PassVector.end();
}
inline void setLastUser(Pass *P, Pass *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:
@ -671,8 +658,17 @@ void PassManagerImpl_New::schedulePass(Pass *P) {
schedulePass(AnalysisPass);
}
setLastUser (AnalysisPass, P);
// Prolong live range of analyses that are needed after an analysis pass
// is destroyed, for querying by subsequent passes
const std::vector<AnalysisID> &IDs = AnUsage.getRequiredTransitiveSet();
for (std::vector<AnalysisID>::const_iterator I = IDs.begin(),
E = IDs.end(); I != E; ++I) {
Pass *AP = getAnalysisPassFromManager(*I);
assert (AP && "Analysis pass is not available");
setLastUser(AP, P);
}
}
addPass(P);
}