Don't static_cast invalid pointers

UBSan complained about using static_cast on the invalid (tombstone, etc.)
pointers used by DenseMap. Use a reinterpret_cast instead.

llvm-svn: 217397

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/include/llvm/Analysis/AssumptionTracker.h b/llvm/include/llvm/Analysis/AssumptionTracker.h
index 5e09b0ac654..80ae513f4f9 100644
--- a/llvm/include/llvm/Analysis/AssumptionTracker.h
+++ b/llvm/include/llvm/Analysis/AssumptionTracker.h
@@ -66,7 +66,7 @@ class AssumptionTracker : public ImmutablePass {
       operator CallInst*() const {
         Value *V = getValPtr();
         if (V == DMI::getEmptyKey() || V == DMI::getTombstoneKey())
-          return static_cast<CallInst*>(V);
+          return reinterpret_cast<CallInst*>(V);
 
         return cast<CallInst>(V);
       }