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| author | Chris Lattner <sabre@nondot.org> | 2009-11-26 22:08:06 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-11-26 22:08:06 +0000 |
| commit | a5bc618a916dec01739599a780beebcdd380a4aa (patch) | |
| tree | e9567853f02a167bb37cde7d47bd9f83df7e66fa /llvm/lib/Transforms/Scalar/InstructionCombining.cpp | |
| parent | a73ecf0b005bf15f635730aede5abd83a521a467 (diff) | |
| download | bcm5719-llvm-a5bc618a916dec01739599a780beebcdd380a4aa.tar.gz bcm5719-llvm-a5bc618a916dec01739599a780beebcdd380a4aa.zip | |
fix crash on Transforms/InstCombine/intrinsics.ll introduced by r89970
llvm-svn: 89972
Diffstat (limited to 'llvm/lib/Transforms/Scalar/InstructionCombining.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/InstructionCombining.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp index f997d60a85e..c7ab9df5722 100644 --- a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp @@ -9877,12 +9877,15 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) { const IntegerType *IT = cast<IntegerType>(II->getOperand(1)->getType()); uint32_t BitWidth = IT->getBitWidth(); APInt Mask = APInt::getSignBit(BitWidth); - APInt LHSKnownZero, LHSKnownOne, RHSKnownZero, RHSKnownOne; + APInt LHSKnownZero(BitWidth, 0); + APInt LHSKnownOne(BitWidth, 0); ComputeMaskedBits(LHS, Mask, LHSKnownZero, LHSKnownOne); bool LHSKnownNegative = LHSKnownOne[BitWidth - 1]; bool LHSKnownPositive = LHSKnownZero[BitWidth - 1]; if (LHSKnownNegative || LHSKnownPositive) { + APInt RHSKnownZero(BitWidth, 0); + APInt RHSKnownOne(BitWidth, 0); ComputeMaskedBits(RHS, Mask, RHSKnownZero, RHSKnownOne); bool RHSKnownNegative = RHSKnownOne[BitWidth - 1]; bool RHSKnownPositive = RHSKnownZero[BitWidth - 1]; |
