1ULL << 64 is undefined, don't do it.
llvm-svn: 19365
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 357275e..4ad6517 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -218,8 +218,9 @@
SDOperand SelectionDAG::getConstant(uint64_t Val, MVT::ValueType VT) {
assert(MVT::isInteger(VT) && "Cannot create FP integer constant!");
// Mask out any bits that are not valid for this constant.
- Val &= (1ULL << MVT::getSizeInBits(VT)) - 1;
-
+ if (VT != MVT::i64)
+ Val &= ((uint64_t)1 << MVT::getSizeInBits(VT)) - 1;
+
SDNode *&N = Constants[std::make_pair(Val, VT)];
if (N) return SDOperand(N, 0);
N = new ConstantSDNode(Val, VT);