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Lines Matching defs:Shuf

625   auto *Shuf = dyn_cast<ShuffleVectorInst>(Trunc.getOperand(0));
626   if (Shuf && Shuf->hasOneUse() && isa<UndefValue>(Shuf->getOperand(1)) &&
627       Shuf->getMask()->getSplatValue() &&
628       Shuf->getType() == Shuf->getOperand(0)->getType()) {
629     // trunc (shuf X, Undef, SplatMask) --> shuf (trunc X), Undef, SplatMask
631     Value *NarrowOp = Builder.CreateTrunc(Shuf->getOperand(0), Trunc.getType());
632     return new ShuffleVectorInst(NarrowOp, NarrowUndef, Shuf->getMask());