From 998e25a1435befc650d05dc4573ca58883d3fac8 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Thu, 26 Nov 2009 22:08:06 +0000 Subject: [PATCH] fix crash on Transforms/InstCombine/intrinsics.ll introduced by r89970 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89972 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/InstructionCombining.cpp | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index f997d60a85e..c7ab9df5722 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -9877,12 +9877,15 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) { const IntegerType *IT = cast(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]; -- 2.34.1