199     } else if (InsertElementInst *IE = dyn_cast<InsertElementInst>(I)) {  in visitExtractElementInst()  local
201       if (IE->getOperand(2) == EI.getOperand(1))  in visitExtractElementInst()
202         return ReplaceInstUsesWith(EI, IE->getOperand(1));  in visitExtractElementInst()
205       if (isa<Constant>(IE->getOperand(2)) && isa<Constant>(EI.getOperand(1))) {  in visitExtractElementInst()
207         EI.setOperand(0, IE->getOperand(0));  in visitExtractElementInst()
480 Instruction *InstCombiner::visitInsertElementInst(InsertElementInst &IE) {  in visitInsertElementInst()  argument
481   Value *VecOp    = IE.getOperand(0);  in visitInsertElementInst()
482   Value *ScalarOp = IE.getOperand(1);  in visitInsertElementInst()
483   Value *IdxOp    = IE.getOperand(2);  in visitInsertElementInst()
487     ReplaceInstUsesWith(IE, VecOp);  in visitInsertElementInst()
493       unsigned NumInsertVectorElts = IE.getType()->getNumElements();  in visitInsertElementInst()
501         return ReplaceInstUsesWith(IE, VecOp);  in visitInsertElementInst()
504         return ReplaceInstUsesWith(IE, UndefValue::get(IE.getType()));  in visitInsertElementInst()
509         return ReplaceInstUsesWith(IE, VecOp);  in visitInsertElementInst()
513       if (!IE.hasOneUse() || !isa<InsertElementInst>(IE.user_back())) {  in visitInsertElementInst()
515         ShuffleOps LR = CollectShuffleElements(&IE, Mask, nullptr);  in visitInsertElementInst()
519         if (LR.first != &IE && LR.second != &IE) {  in visitInsertElementInst()
533   if (Value *V = SimplifyDemandedVectorElts(&IE, AllOnesEltMask, UndefElts)) {  in visitInsertElementInst()
534     if (V != &IE)  in visitInsertElementInst()
535       return ReplaceInstUsesWith(IE, V);  in visitInsertElementInst()
536     return &IE;  in visitInsertElementInst()