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path: root/lib/Transforms/InstCombine/InstCombineCasts.cpp
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Diffstat (limited to 'lib/Transforms/InstCombine/InstCombineCasts.cpp')
-rw-r--r--lib/Transforms/InstCombine/InstCombineCasts.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineCasts.cpp b/lib/Transforms/InstCombine/InstCombineCasts.cpp
index d2ab61845f..77ad828958 100644
--- a/lib/Transforms/InstCombine/InstCombineCasts.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCasts.cpp
@@ -912,7 +912,8 @@ Instruction *InstCombiner::transformSExtICmp(ICmpInst *ICI, Instruction &CI) {
APInt TypeMask(APInt::getAllOnesValue(BitWidth));
ComputeMaskedBits(Op0, TypeMask, KnownZero, KnownOne);
- if ((~KnownZero).isPowerOf2()) {
+ APInt KnownZeroMask(~KnownZero);
+ if (KnownZeroMask.isPowerOf2()) {
Value *In = ICI->getOperand(0);
if (!Op1C->isZero() == (Pred == ICmpInst::ICMP_NE)) {