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-rw-r--r--llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 36add035159..e8b6c04a48f 100644
--- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -1162,7 +1162,8 @@ TargetLowering::SimplifySetCC(EVT VT, SDValue N0, SDValue N1,
}
// Make sure we're not losing bits from the constant.
- if (MinBits < C1.getBitWidth() && MinBits >= C1.getActiveBits()) {
+ if (MinBits > 0 &&
+ MinBits < C1.getBitWidth() && MinBits >= C1.getActiveBits()) {
EVT MinVT = EVT::getIntegerVT(*DAG.getContext(), MinBits);
if (isTypeDesirableForOp(ISD::SETCC, MinVT)) {
// Will get folded away.
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