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PassInfo keep tracks whether a pass is an analysis pass or not.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48554 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2008-03-19 21:56:59 +00:00
parent 7925ed05d0
commit c758209153
35 changed files with 92 additions and 75 deletions
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5
lib/VMCore/PassManager.cpp
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@@ -426,11 +426,14 @@ void PMTopLevelManager::schedulePass(Pass *P) {
// Give pass a chance to prepare the stage.
P->preparePassManager(activeStack);
#if 1
// If P is an analysis pass and it is available then do not
// generate the analysis again. Stale analysis info should not be
// available at this point.
if (P->isAnalysis() && findAnalysisPass(P->getPassInfo()))
if (P->getPassInfo() &&
P->getPassInfo()->isAnalysis() && findAnalysisPass(P->getPassInfo()))
return;
#endif
AnalysisUsage AnUsage;
P->getAnalysisUsage(AnUsage);