68 Instruction *InstCombiner::scalarizePHI(ExtractElementInst &EI, PHINode *PN) {  in scalarizePHI()  argument
77       if (EI.getIndexOperand() == EU->getIndexOperand())  in scalarizePHI()
101       PHINode::Create(EI.getType(), PN->getNumIncomingValues(), ""), *PN));  in scalarizePHI()
106     Value *Elt = EI.getIndexOperand();  in scalarizePHI()
143   return &EI;  in scalarizePHI()
146 Instruction *InstCombiner::visitExtractElementInst(ExtractElementInst &EI) {  in visitExtractElementInst()  argument
148           EI.getVectorOperand(), EI.getIndexOperand(), DL, TLI, DT, AC))  in visitExtractElementInst()
149     return replaceInstUsesWith(EI, V);  in visitExtractElementInst()
153   if (Constant *C = dyn_cast<Constant>(EI.getOperand(0)))  in visitExtractElementInst()
155       return replaceInstUsesWith(EI, C->getAggregateElement(0U));  in visitExtractElementInst()
159   if (ConstantInt *IdxC = dyn_cast<ConstantInt>(EI.getOperand(1))) {  in visitExtractElementInst()
161     unsigned VectorWidth = EI.getVectorOperandType()->getNumElements();  in visitExtractElementInst()
169     if (EI.getOperand(0)->hasOneUse() && VectorWidth != 1) {  in visitExtractElementInst()
173       if (Value *V = SimplifyDemandedVectorElts(EI.getOperand(0), DemandedMask,  in visitExtractElementInst()
175         EI.setOperand(0, V);  in visitExtractElementInst()
176         return &EI;  in visitExtractElementInst()
183     if (BitCastInst *BCI = dyn_cast<BitCastInst>(EI.getOperand(0))) {  in visitExtractElementInst()
187             return new BitCastInst(Elt, EI.getType());  in visitExtractElementInst()
192     if (PHINode *PN = dyn_cast<PHINode>(EI.getOperand(0))) {  in visitExtractElementInst()
193       Instruction *scalarPHI = scalarizePHI(EI, PN);  in visitExtractElementInst()
199   if (Instruction *I = dyn_cast<Instruction>(EI.getOperand(0))) {  in visitExtractElementInst()
204           cheapToScalarize(BO, isa<ConstantInt>(EI.getOperand(1)))) {  in visitExtractElementInst()
206           Builder->CreateExtractElement(BO->getOperand(0), EI.getOperand(1),  in visitExtractElementInst()
207                                         EI.getName()+".lhs");  in visitExtractElementInst()
209           Builder->CreateExtractElement(BO->getOperand(1), EI.getOperand(1),  in visitExtractElementInst()
210                                         EI.getName()+".rhs");  in visitExtractElementInst()
216       if (IE->getOperand(2) == EI.getOperand(1))  in visitExtractElementInst()
217         return replaceInstUsesWith(EI, IE->getOperand(1));  in visitExtractElementInst()
220       if (isa<Constant>(IE->getOperand(2)) && isa<Constant>(EI.getOperand(1))) {  in visitExtractElementInst()
221         Worklist.AddValue(EI.getOperand(0));  in visitExtractElementInst()
222         EI.setOperand(0, IE->getOperand(0));  in visitExtractElementInst()
223         return &EI;  in visitExtractElementInst()
228       if (ConstantInt *Elt = dyn_cast<ConstantInt>(EI.getOperand(1))) {  in visitExtractElementInst()
235           return replaceInstUsesWith(EI, UndefValue::get(EI.getType()));  in visitExtractElementInst()
242         Type *Int32Ty = Type::getInt32Ty(EI.getContext());  in visitExtractElementInst()
253                                                   EI.getIndexOperand());  in visitExtractElementInst()
255         return CastInst::Create(CI->getOpcode(), EE, EI.getType());  in visitExtractElementInst()
272                                                EI.getIndexOperand(),  in visitExtractElementInst()
278                                           EI.getIndexOperand(),  in visitExtractElementInst()
283                                           EI.getIndexOperand(),  in visitExtractElementInst()
339     } else if (ExtractElementInst *EI = dyn_cast<ExtractElementInst>(ScalarOp)){  in collectSingleShuffleElements()  local
340       if (isa<ConstantInt>(EI->getOperand(1))) {  in collectSingleShuffleElements()
342         cast<ConstantInt>(EI->getOperand(1))->getZExtValue();  in collectSingleShuffleElements()
346         if (EI->getOperand(0) == LHS || EI->getOperand(0) == RHS) {  in collectSingleShuffleElements()
351             if (EI->getOperand(0) == LHS) {  in collectSingleShuffleElements()
356               assert(EI->getOperand(0) == RHS);  in collectSingleShuffleElements()
474     if (ExtractElementInst *EI = dyn_cast<ExtractElementInst>(ScalarOp)) {  in collectShuffleElements()  local
475       if (isa<ConstantInt>(EI->getOperand(1)) && isa<ConstantInt>(IdxOp)) {  in collectShuffleElements()
477           cast<ConstantInt>(EI->getOperand(1))->getZExtValue();  in collectShuffleElements()
482         if (EI->getOperand(0) == PermittedRHS || PermittedRHS == nullptr) {  in collectShuffleElements()
483           Value *RHS = EI->getOperand(0);  in collectShuffleElements()
490             replaceExtractElements(IEI, EI, IC);  in collectShuffleElements()
510               EI->getOperand(0)->getType()->getVectorNumElements();  in collectShuffleElements()
515           return std::make_pair(EI->getOperand(0), PermittedRHS);  in collectShuffleElements()
520         if (EI->getOperand(0)->getType() == PermittedRHS->getType() &&  in collectShuffleElements()
521             collectSingleShuffleElements(IEI, EI->getOperand(0), PermittedRHS,  in collectShuffleElements()
523           return std::make_pair(EI->getOperand(0), PermittedRHS);  in collectShuffleElements()
580   if (ExtractElementInst *EI = dyn_cast<ExtractElementInst>(ScalarOp)) {  in visitInsertElementInst()  local
581     if (isa<ConstantInt>(EI->getOperand(1)) && isa<ConstantInt>(IdxOp)) {  in visitInsertElementInst()
584           EI->getOperand(0)->getType()->getVectorNumElements();  in visitInsertElementInst()
586         cast<ConstantInt>(EI->getOperand(1))->getZExtValue();  in visitInsertElementInst()
597       if (EI->getOperand(0) == VecOp && ExtractedIdx == InsertedIdx)  in visitInsertElementInst()