diff options
| -rw-r--r-- | lib/Transforms/Scalar/InstructionCombining.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index 7e9c3841cc..dfd568c33e 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -456,6 +456,8 @@ static void ComputeMaskedBits(Value *V, uint64_t Mask, uint64_t &KnownZero, Instruction *I = dyn_cast<Instruction>(V); if (!I) return; + Mask &= V->getType()->getIntegralTypeMask(); + switch (I->getOpcode()) { case Instruction::And: // If either the LHS or the RHS are Zero, the result is zero. @@ -713,6 +715,8 @@ bool InstCombiner::SimplifyDemandedBits(Value *V, uint64_t DemandedMask, Instruction *I = dyn_cast<Instruction>(V); if (!I) return false; // Only analyze instructions. + DemandedMask &= V->getType()->getIntegralTypeMask(); + uint64_t KnownZero2, KnownOne2; switch (I->getOpcode()) { default: break; |