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-rw-r--r--include/llvm/CodeGen/SelectionDAGNodes.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index 6d5d26223f..adb85f0e96 100644
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -605,7 +605,9 @@ public:
bool isNullValue() const { return Value == 0; }
bool isAllOnesValue() const {
- return Value == (1ULL << MVT::getSizeInBits(getValueType(0)))-1;
+ int NumBits = MVT::getSizeInBits(getValueType(0));
+ if (NumBits == 64) return Value+1 == 0;
+ return Value == (1ULL << NumBits)-1;
}
static bool classof(const ConstantSDNode *) { return true; }