Clear VisitedPHIs after use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84080 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp
index ce1d877..2c4efc4 100644
--- a/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/lib/Analysis/BasicAliasAnalysis.cpp
@@ -203,8 +203,10 @@
BasicAliasAnalysis() : NoAA(&ID) {}
AliasResult alias(const Value *V1, unsigned V1Size,
const Value *V2, unsigned V2Size) {
+ assert(VisitedPHIs.empty() && "VisitedPHIs must be cleared after use!");
+ AliasResult Alias = aliasCheck(V1, V1Size, V2, V2Size);
VisitedPHIs.clear();
- return aliasCheck(V1, V1Size, V2, V2Size);
+ return Alias;
}
ModRefResult getModRefInfo(CallSite CS, Value *P, unsigned Size);