getEntryFor() may invalidate DenseMap iterator.
Walking an invalidated iterator is not a good idea.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68047 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/AliasSetTracker.cpp b/lib/Analysis/AliasSetTracker.cpp
index a386a49..18c2b66 100644
--- a/lib/Analysis/AliasSetTracker.cpp
+++ b/lib/Analysis/AliasSetTracker.cpp
@@ -520,6 +520,7 @@
if (Entry.hasAliasSet()) return; // Already in the tracker!
// Add it to the alias set it aliases...
+ I = PointerMap.find(From);
AliasSet *AS = I->second->getAliasSet(*this);
AS->addPointer(*this, Entry, I->second->getSize(), true);
}