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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48554 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/VMCore/PassManager.cpp b/lib/VMCore/PassManager.cpp
index 7db6aa2643..6c8d0624e6 100644
--- a/lib/VMCore/PassManager.cpp
+++ b/lib/VMCore/PassManager.cpp
@@ -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);