Fix another case where constexprs could cause a crash

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5972 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index ad4ef420e9db938df52e3a3afac759a62b131353..d00cefd37d4ecc744c83a68c6de7ec5905682659 100644 (file)
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -197,11 +197,8 @@ static inline Value *dyn_castNotVal(Value *V) {
     return BinaryOperator::getNotArgument(cast<BinaryOperator>(V));
 
   // Constants can be considered to be not'ed values...
-  if (ConstantIntegral *C = dyn_cast<ConstantIntegral>(V)) {
-    Constant *NC = *ConstantIntegral::getAllOnesValue(C->getType()) ^ *C;
-    assert(NC && "Couldn't constant fold an exclusive or!");
-    return NC;
-  }
+  if (ConstantIntegral *C = dyn_cast<ConstantIntegral>(V))
+    return *ConstantIntegral::getAllOnesValue(C->getType()) ^ *C;
   return 0;
 }