Fix undefined behavior (binding a reference to a dereferenced null pointer) if
SSAUpdater was created and destroyed without being initialized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162137 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/SSAUpdater.cpp b/lib/Transforms/Utils/SSAUpdater.cpp
index e568a61..72d4199 100644
--- a/lib/Transforms/Utils/SSAUpdater.cpp
+++ b/lib/Transforms/Utils/SSAUpdater.cpp
@@ -39,7 +39,7 @@
: AV(0), ProtoType(0), ProtoName(), InsertedPHIs(NewPHI) {}
SSAUpdater::~SSAUpdater() {
- delete &getAvailableVals(AV);
+ delete static_cast<AvailableValsTy*>(AV);
}
/// Initialize - Reset this object to get ready for a new set of SSA