Lines Matching defs:SVI

544     } else if (auto *SVI = dyn_cast<ShuffleVectorInst>(I)) {
548       if (isa<FixedVectorType>(SVI->getType()) && isa<ConstantInt>(Index)) {
550             SVI->getMaskValue(cast<ConstantInt>(Index)->getZExtValue());
552         unsigned LHSWidth = cast<FixedVectorType>(SVI->getOperand(0)->getType())
558           Src = SVI->getOperand(0);
561           Src = SVI->getOperand(1);
2099 static bool isShuffleExtractingFromLHS(ShuffleVectorInst &SVI,
2102       cast<FixedVectorType>(SVI.getOperand(0)->getType())->getNumElements();
2830 Instruction *InstCombinerImpl::simplifyBinOpSplats(ShuffleVectorInst &SVI) {
2831   if (!match(SVI.getOperand(1), m_Poison()) ||
2832       !match(SVI.getShuffleMask(), m_ZeroMask()) ||
2833       !SVI.getOperand(0)->hasOneUse())
2836   Value *Op0 = SVI.getOperand(0);
2854   return new ShuffleVectorInst(NewBO, SVI.getShuffleMask());
2857 Instruction *InstCombinerImpl::visitShuffleVectorInst(ShuffleVectorInst &SVI) {
2858   Value *LHS = SVI.getOperand(0);
2859   Value *RHS = SVI.getOperand(1);
2860   SimplifyQuery ShufQuery = SQ.getWithInstruction(&SVI);
2861   if (auto *V = simplifyShuffleVectorInst(LHS, RHS, SVI.getShuffleMask(),
2862                                           SVI.getType(), ShufQuery))
2863     return replaceInstUsesWith(SVI, V);
2865   if (Instruction *I = simplifyBinOpSplats(SVI))
2870   if (match(SVI.getShuffleMask(), m_ZeroMask()) && !isa<PoisonValue>(RHS))
2871     return replaceOperand(SVI, 1, PoisonValue::get(RHS->getType()));
2876   unsigned VWidth = cast<FixedVectorType>(SVI.getType())->getNumElements();
2890           SVI.getType()->getScalarSizeInBits() &&
2892     Value *V = Builder.CreateShuffleVector(X, Y, SVI.getShuffleMask(),
2893                                            SVI.getName() + ".uncasted");
2894     return new BitCastInst(V, SVI.getType());
2897   ArrayRef<int> Mask = SVI.getShuffleMask();
2916         return BitCastInst::Create(Instruction::BitCast, V, SVI.getType());
2929     SVI.commute();
2930     return &SVI;
2933   if (Instruction *I = canonicalizeInsertSplat(SVI, Builder))
2936   if (Instruction *I = foldSelectShuffle(SVI))
2939   if (Instruction *I = foldTruncShuffle(SVI, DL.isBigEndian()))
2942   if (Instruction *I = narrowVectorSelect(SVI, Builder))
2945   if (Instruction *I = foldShuffleOfUnaryOps(SVI, Builder))
2948   if (Instruction *I = foldCastShuffle(SVI, Builder))
2953   if (Value *V = SimplifyDemandedVectorElts(&SVI, AllOnesEltMask, PoisonElts)) {
2954     if (V != &SVI)
2955       return replaceInstUsesWith(SVI, V);
2956     return &SVI;
2959   if (Instruction *I = foldIdentityExtractShuffle(SVI))
2964   if (Instruction *I = foldShuffleWithInsert(SVI, *this))
2966   if (Instruction *I = foldIdentityPaddedShuffles(SVI))
2976         if (Instruction *I = FoldOpIntoSelect(SVI, SI))
2981       if (Instruction *I = foldOpIntoPhi(SVI, PN, /*AllowMultipleUses=*/true))
2988     return replaceInstUsesWith(SVI, V);
3021   if (isShuffleExtractingFromLHS(SVI, Mask)) {
3031     for (User *U : SVI.users())
3057                                         SVI.getName() + ".extract");
3065         It->second = Builder.CreateBitCast(V, CastSrcTy, SVI.getName() + ".bc");
3067                                                SVI.getName() + ".extract");
3128     return MadeChange ? &SVI : nullptr;
3168     return MadeChange ? &SVI : nullptr;
3250   return MadeChange ? &SVI : nullptr;