diff options
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp index e082cc30196..e43e721534e 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp @@ -470,7 +470,8 @@ static Instruction *shrinkSplatShuffle(TruncInst &Trunc, InstCombiner::BuilderTy &Builder) { auto *Shuf = dyn_cast<ShuffleVectorInst>(Trunc.getOperand(0)); if (Shuf && Shuf->hasOneUse() && isa<UndefValue>(Shuf->getOperand(1)) && - Shuf->getMask()->getSplatValue()) { + Shuf->getMask()->getSplatValue() && + Shuf->getType() == Shuf->getOperand(0)->getType()) { // trunc (shuf X, Undef, SplatMask) --> shuf (trunc X), Undef, SplatMask Constant *NarrowUndef = UndefValue::get(Trunc.getType()); Value *NarrowOp = Builder.CreateTrunc(Shuf->getOperand(0), Trunc.getType()); |
