diff options
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/InstCombine/InstructionCombining.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Transforms/InstCombine/InstructionCombining.cpp b/lib/Transforms/InstCombine/InstructionCombining.cpp index 88d7a0d59e..88d461e1b2 100644 --- a/lib/Transforms/InstCombine/InstructionCombining.cpp +++ b/lib/Transforms/InstCombine/InstructionCombining.cpp @@ -1227,7 +1227,9 @@ Value *InstCombiner::SimplifyVectorOp(BinaryOperator &Inst) { if (isa<ShuffleVectorInst>(RHS)) Shuffle = cast<ShuffleVectorInst>(RHS); if (isa<Constant>(LHS)) C1 = cast<Constant>(LHS); if (isa<Constant>(RHS)) C1 = cast<Constant>(RHS); - if (Shuffle && C1 && isa<UndefValue>(Shuffle->getOperand(1)) && + if (Shuffle && C1 && + (isa<ConstantVector>(C1) || isa<ConstantDataVector>(C1)) && + isa<UndefValue>(Shuffle->getOperand(1)) && Shuffle->getType() == Shuffle->getOperand(0)->getType()) { SmallVector<int, 16> ShMask = Shuffle->getShuffleMask(); // Find constant C2 that has property: |