537     } else if (auto *SVI = dyn_cast<ShuffleVectorInst>(I)) {  in visitExtractElementInst()  local
541       if (isa<FixedVectorType>(SVI->getType()) && isa<ConstantInt>(Index)) {  in visitExtractElementInst()
543             SVI->getMaskValue(cast<ConstantInt>(Index)->getZExtValue());  in visitExtractElementInst()
545         unsigned LHSWidth = cast<FixedVectorType>(SVI->getOperand(0)->getType())  in visitExtractElementInst()
551           Src = SVI->getOperand(0);  in visitExtractElementInst()
554           Src = SVI->getOperand(1);  in visitExtractElementInst()
2025 static bool isShuffleExtractingFromLHS(ShuffleVectorInst &SVI,  in isShuffleExtractingFromLHS()  argument
2028       cast<FixedVectorType>(SVI.getOperand(0)->getType())->getNumElements();  in isShuffleExtractingFromLHS()
2740 Instruction *InstCombinerImpl::simplifyBinOpSplats(ShuffleVectorInst &SVI) {  in simplifyBinOpSplats()  argument
2741   if (!match(SVI.getOperand(1), m_Undef()) ||  in simplifyBinOpSplats()
2742       !match(SVI.getShuffleMask(), m_ZeroMask()) ||  in simplifyBinOpSplats()
2743       !SVI.getOperand(0)->hasOneUse())  in simplifyBinOpSplats()
2746   Value *Op0 = SVI.getOperand(0);  in simplifyBinOpSplats()
2764   return new ShuffleVectorInst(NewBO, SVI.getShuffleMask());  in simplifyBinOpSplats()
2767 Instruction *InstCombinerImpl::visitShuffleVectorInst(ShuffleVectorInst &SVI) {  in visitShuffleVectorInst()  argument
2768   Value *LHS = SVI.getOperand(0);  in visitShuffleVectorInst()
2769   Value *RHS = SVI.getOperand(1);  in visitShuffleVectorInst()
2770   SimplifyQuery ShufQuery = SQ.getWithInstruction(&SVI);  in visitShuffleVectorInst()
2771   if (auto *V = simplifyShuffleVectorInst(LHS, RHS, SVI.getShuffleMask(),  in visitShuffleVectorInst()
2772                                           SVI.getType(), ShufQuery))  in visitShuffleVectorInst()
2773     return replaceInstUsesWith(SVI, V);  in visitShuffleVectorInst()
2775   if (Instruction *I = simplifyBinOpSplats(SVI))  in visitShuffleVectorInst()
2780   if (match(SVI.getShuffleMask(), m_ZeroMask()) && !isa<PoisonValue>(RHS))  in visitShuffleVectorInst()
2781     return replaceOperand(SVI, 1, PoisonValue::get(RHS->getType()));  in visitShuffleVectorInst()
2786   unsigned VWidth = cast<FixedVectorType>(SVI.getType())->getNumElements();  in visitShuffleVectorInst()
2800           SVI.getType()->getScalarSizeInBits() &&  in visitShuffleVectorInst()
2802     Value *V = Builder.CreateShuffleVector(X, Y, SVI.getShuffleMask(),  in visitShuffleVectorInst()
2803                                            SVI.getName() + ".uncasted");  in visitShuffleVectorInst()
2804     return new BitCastInst(V, SVI.getType());  in visitShuffleVectorInst()
2807   ArrayRef<int> Mask = SVI.getShuffleMask();  in visitShuffleVectorInst()
2834         return BitCastInst::Create(Instruction::BitCast, V, SVI.getType());  in visitShuffleVectorInst()
2847     SVI.commute();  in visitShuffleVectorInst()
2848     return &SVI;  in visitShuffleVectorInst()
2851   if (Instruction *I = canonicalizeInsertSplat(SVI, Builder))  in visitShuffleVectorInst()
2854   if (Instruction *I = foldSelectShuffle(SVI))  in visitShuffleVectorInst()
2857   if (Instruction *I = foldTruncShuffle(SVI, DL.isBigEndian()))  in visitShuffleVectorInst()
2860   if (Instruction *I = narrowVectorSelect(SVI, Builder))  in visitShuffleVectorInst()
2863   if (Instruction *I = foldShuffleOfUnaryOps(SVI, Builder))  in visitShuffleVectorInst()
2866   if (Instruction *I = foldCastShuffle(SVI, Builder))  in visitShuffleVectorInst()
2871   if (Value *V = SimplifyDemandedVectorElts(&SVI, AllOnesEltMask, PoisonElts)) {  in visitShuffleVectorInst()
2872     if (V != &SVI)  in visitShuffleVectorInst()
2873       return replaceInstUsesWith(SVI, V);  in visitShuffleVectorInst()
2874     return &SVI;  in visitShuffleVectorInst()
2877   if (Instruction *I = foldIdentityExtractShuffle(SVI))  in visitShuffleVectorInst()
2882   if (Instruction *I = foldShuffleWithInsert(SVI, *this))  in visitShuffleVectorInst()
2884   if (Instruction *I = foldIdentityPaddedShuffles(SVI))  in visitShuffleVectorInst()
2889     return replaceInstUsesWith(SVI, V);  in visitShuffleVectorInst()
2922   if (isShuffleExtractingFromLHS(SVI, Mask)) {  in visitShuffleVectorInst()
2932     for (User *U : SVI.users())  in visitShuffleVectorInst()
2958                                         SVI.getName() + ".extract");  in visitShuffleVectorInst()
2968               : Builder.CreateBitCast(V, CastSrcTy, SVI.getName() + ".bc");  in visitShuffleVectorInst()
2972                                                SVI.getName() + ".extract");  in visitShuffleVectorInst()
3033     return MadeChange ? &SVI : nullptr;  in visitShuffleVectorInst()
3073     return MadeChange ? &SVI : nullptr;  in visitShuffleVectorInst()
3155   return MadeChange ? &SVI : nullptr;  in visitShuffleVectorInst()