116 Instruction *InstCombiner::scalarizePHI(ExtractElementInst &EI, PHINode *PN) {  in scalarizePHI()  argument
126   if (PHIUser == cast<Instruction>(&EI))  in scalarizePHI()
139       PHINode::Create(EI.getType(), PN->getNumIncomingValues(), ""), *PN));  in scalarizePHI()
144     Value *Elt = EI.getIndexOperand();  in scalarizePHI()
177   return ReplaceInstUsesWith(EI, scalarPHI);  in scalarizePHI()
180 Instruction *InstCombiner::visitExtractElementInst(ExtractElementInst &EI) {  in visitExtractElementInst()  argument
183   if (Constant *C = dyn_cast<Constant>(EI.getOperand(0)))  in visitExtractElementInst()
185       return ReplaceInstUsesWith(EI, C->getAggregateElement(0U));  in visitExtractElementInst()
189   if (ConstantInt *IdxC = dyn_cast<ConstantInt>(EI.getOperand(1))) {  in visitExtractElementInst()
191     unsigned VectorWidth = EI.getVectorOperandType()->getNumElements();  in visitExtractElementInst()
196       return ReplaceInstUsesWith(EI, UndefValue::get(EI.getType()));  in visitExtractElementInst()
201     if (EI.getOperand(0)->hasOneUse() && VectorWidth != 1) {  in visitExtractElementInst()
205       if (Value *V = SimplifyDemandedVectorElts(EI.getOperand(0), DemandedMask,  in visitExtractElementInst()
207         EI.setOperand(0, V);  in visitExtractElementInst()
208         return &EI;  in visitExtractElementInst()
212     if (Value *Elt = FindScalarElement(EI.getOperand(0), IndexVal))  in visitExtractElementInst()
213       return ReplaceInstUsesWith(EI, Elt);  in visitExtractElementInst()
218     if (BitCastInst *BCI = dyn_cast<BitCastInst>(EI.getOperand(0))) {  in visitExtractElementInst()
222             return new BitCastInst(Elt, EI.getType());  in visitExtractElementInst()
227     if (PHINode *PN = dyn_cast<PHINode>(EI.getOperand(0))) {  in visitExtractElementInst()
228       Instruction *scalarPHI = scalarizePHI(EI, PN);  in visitExtractElementInst()
234   if (Instruction *I = dyn_cast<Instruction>(EI.getOperand(0))) {  in visitExtractElementInst()
239           CheapToScalarize(BO, isa<ConstantInt>(EI.getOperand(1)))) {  in visitExtractElementInst()
241           Builder->CreateExtractElement(BO->getOperand(0), EI.getOperand(1),  in visitExtractElementInst()
242                                         EI.getName()+".lhs");  in visitExtractElementInst()
244           Builder->CreateExtractElement(BO->getOperand(1), EI.getOperand(1),  in visitExtractElementInst()
245                                         EI.getName()+".rhs");  in visitExtractElementInst()
250       if (IE->getOperand(2) == EI.getOperand(1))  in visitExtractElementInst()
251         return ReplaceInstUsesWith(EI, IE->getOperand(1));  in visitExtractElementInst()
254       if (isa<Constant>(IE->getOperand(2)) && isa<Constant>(EI.getOperand(1))) {  in visitExtractElementInst()
255         Worklist.AddValue(EI.getOperand(0));  in visitExtractElementInst()
256         EI.setOperand(0, IE->getOperand(0));  in visitExtractElementInst()
257         return &EI;  in visitExtractElementInst()
262       if (ConstantInt *Elt = dyn_cast<ConstantInt>(EI.getOperand(1))) {  in visitExtractElementInst()
269           return ReplaceInstUsesWith(EI, UndefValue::get(EI.getType()));  in visitExtractElementInst()
276         Type *Int32Ty = Type::getInt32Ty(EI.getContext());  in visitExtractElementInst()
286                                                   EI.getIndexOperand());  in visitExtractElementInst()
288         return CastInst::Create(CI->getOpcode(), EE, EI.getType());  in visitExtractElementInst()
304                                                EI.getIndexOperand(),  in visitExtractElementInst()
310                                           EI.getIndexOperand(),  in visitExtractElementInst()
315                                           EI.getIndexOperand(),  in visitExtractElementInst()
372     } else if (ExtractElementInst *EI = dyn_cast<ExtractElementInst>(ScalarOp)){  in CollectSingleShuffleElements()  local
373       if (isa<ConstantInt>(EI->getOperand(1))) {  in CollectSingleShuffleElements()
375         cast<ConstantInt>(EI->getOperand(1))->getZExtValue();  in CollectSingleShuffleElements()
379         if (EI->getOperand(0) == LHS || EI->getOperand(0) == RHS) {  in CollectSingleShuffleElements()
384             if (EI->getOperand(0) == LHS) {  in CollectSingleShuffleElements()
389               assert(EI->getOperand(0) == RHS);  in CollectSingleShuffleElements()
438     if (ExtractElementInst *EI = dyn_cast<ExtractElementInst>(ScalarOp)) {  in CollectShuffleElements()  local
439       if (isa<ConstantInt>(EI->getOperand(1)) && isa<ConstantInt>(IdxOp)) {  in CollectShuffleElements()
441           cast<ConstantInt>(EI->getOperand(1))->getZExtValue();  in CollectShuffleElements()
446         if (EI->getOperand(0) == PermittedRHS || PermittedRHS == nullptr) {  in CollectShuffleElements()
447           Value *RHS = EI->getOperand(0);  in CollectShuffleElements()
470               EI->getOperand(0)->getType()->getVectorNumElements();  in CollectShuffleElements()
475           return std::make_pair(EI->getOperand(0), PermittedRHS);  in CollectShuffleElements()
480         if (EI->getOperand(0)->getType() == PermittedRHS->getType() &&  in CollectShuffleElements()
481             CollectSingleShuffleElements(IEI, EI->getOperand(0), PermittedRHS,  in CollectShuffleElements()
483           return std::make_pair(EI->getOperand(0), PermittedRHS);  in CollectShuffleElements()
540   if (ExtractElementInst *EI = dyn_cast<ExtractElementInst>(ScalarOp)) {  in visitInsertElementInst()  local
541     if (isa<ConstantInt>(EI->getOperand(1)) && isa<ConstantInt>(IdxOp)) {  in visitInsertElementInst()
544           EI->getOperand(0)->getType()->getVectorNumElements();  in visitInsertElementInst()
546         cast<ConstantInt>(EI->getOperand(1))->getZExtValue();  in visitInsertElementInst()
557       if (EI->getOperand(0) == VecOp && ExtractedIdx == InsertedIdx)  in visitInsertElementInst()