Cross Reference: /external/llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp

Lines Matching defs:EI
111 Instruction *InstCombiner::scalarizePHI(ExtractElementInst &EI, PHINode *PN) {
121   if (PHIUser == cast<Instruction>(&EI))
134       PHINode::Create(EI.getType(), PN->getNumIncomingValues(), ""), *PN));
139     Value *Elt = EI.getIndexOperand();
172   return ReplaceInstUsesWith(EI, scalarPHI);
175 Instruction *InstCombiner::visitExtractElementInst(ExtractElementInst &EI) {
176   // If vector val is constant with all elements the same, replace EI with
178   if (Constant *C = dyn_cast<Constant>(EI.getOperand(0)))
180       return ReplaceInstUsesWith(EI, C->getAggregateElement(0U));
184   if (ConstantInt *IdxC = dyn_cast<ConstantInt>(EI.getOperand(1))) {
186     unsigned VectorWidth = EI.getVectorOperandType()->getNumElements();
191       return ReplaceInstUsesWith(EI, UndefValue::get(EI.getType()));
196     if (EI.getOperand(0)->hasOneUse() && VectorWidth != 1) {
200       if (Value *V = SimplifyDemandedVectorElts(EI.getOperand(0),
202         EI.setOperand(0, V);
203         return &EI;
207     if (Value *Elt = FindScalarElement(EI.getOperand(0), IndexVal))
208       return ReplaceInstUsesWith(EI, Elt);
213     if (BitCastInst *BCI = dyn_cast<BitCastInst>(EI.getOperand(0))) {
217             return new BitCastInst(Elt, EI.getType());
222     if (PHINode *PN = dyn_cast<PHINode>(EI.getOperand(0))) {
223       Instruction *scalarPHI = scalarizePHI(EI, PN);
229   if (Instruction *I = dyn_cast<Instruction>(EI.getOperand(0))) {
234           CheapToScalarize(BO, isa<ConstantInt>(EI.getOperand(1)))) {
236           Builder->CreateExtractElement(BO->getOperand(0), EI.getOperand(1),
237                                         EI.getName()+".lhs");
239           Builder->CreateExtractElement(BO->getOperand(1), EI.getOperand(1),
240                                         EI.getName()+".rhs");
245       if (IE->getOperand(2) == EI.getOperand(1))
246         return ReplaceInstUsesWith(EI, IE->getOperand(1));
249       if (isa<Constant>(IE->getOperand(2)) && isa<Constant>(EI.getOperand(1))) {
250         Worklist.AddValue(EI.getOperand(0));
251         EI.setOperand(0, IE->getOperand(0));
252         return &EI;
257       if (ConstantInt *Elt = dyn_cast<ConstantInt>(EI.getOperand(1))) {
264           return ReplaceInstUsesWith(EI, UndefValue::get(EI.getType()));
271         Type *Int32Ty = Type::getInt32Ty(EI.getContext());
281                                                   EI.getIndexOperand());
283         return CastInst::Create(CI->getOpcode(), EE, EI.getType());
335     } else if (ExtractElementInst *EI = dyn_cast<ExtractElementInst>(ScalarOp)){
336       if (isa<ConstantInt>(EI->getOperand(1)) &&
337           EI->getOperand(0)->getType() == V->getType()) {
339         cast<ConstantInt>(EI->getOperand(1))->getZExtValue();
342         if (EI->getOperand(0) == LHS || EI->getOperand(0) == RHS) {
347             if (EI->getOperand(0) == LHS) {
352               assert(EI->getOperand(0) == RHS);
394     if (ExtractElementInst *EI = dyn_cast<ExtractElementInst>(ScalarOp)) {
395       if (isa<ConstantInt>(EI->getOperand(1)) && isa<ConstantInt>(IdxOp) &&
396           EI->getOperand(0)->getType() == V->getType()) {
398           cast<ConstantInt>(EI->getOperand(1))->getZExtValue();
403         if (EI->getOperand(0) == RHS || RHS == 0) {
404           RHS = EI->getOperand(0);
413           Value *V = CollectShuffleElements(EI->getOperand(0), Mask, RHS);
429         if (CollectSingleShuffleElements(IEI, EI->getOperand(0), RHS, Mask))
430           return EI->getOperand(0);
453   if (ExtractElementInst *EI = dyn_cast<ExtractElementInst>(ScalarOp)) {
454     if (isa<ConstantInt>(EI->getOperand(1)) && isa<ConstantInt>(IdxOp) &&
455         EI->getOperand(0)->getType() == IE.getType()) {
458         cast<ConstantInt>(EI->getOperand(1))->getZExtValue();
469       if (EI->getOperand(0) == VecOp && ExtractedIdx == InsertedIdx)