Lines Matching defs:GEP

328 static bool isGEPFoldable(GetElementPtrInst *GEP,
330   SmallVector<const Value *, 4> Indices(GEP->indices());
331   return TTI->getGEPCost(GEP->getSourceElementType(), GEP->getPointerOperand(),
335 Instruction *NaryReassociatePass::tryReassociateGEP(GetElementPtrInst *GEP) {
336   // Not worth reassociating GEP if it is foldable.
337   if (isGEPFoldable(GEP, TTI))
340   gep_type_iterator GTI = gep_type_begin(*GEP);
341   for (unsigned I = 1, E = GEP->getNumOperands(); I != E; ++I, ++GTI) {
343       if (auto *NewGEP = tryReassociateGEPAtIndex(GEP, I - 1,
353                                                 GetElementPtrInst *GEP) {
355       DL->getIndexSizeInBits(GEP->getType()->getPointerAddressSpace());
360 NaryReassociatePass::tryReassociateGEPAtIndex(GetElementPtrInst *GEP,
362   SimplifyQuery SQ(*DL, DT, AC, GEP);
363   Value *IndexToSplit = GEP->getOperand(I + 1);
376     if (requiresSignExtension(IndexToSplit, GEP) &&
382     if (auto *NewGEP = tryReassociateGEPAtIndex(GEP, I, LHS, RHS, IndexedType))
387               tryReassociateGEPAtIndex(GEP, I, RHS, LHS, IndexedType))
395 NaryReassociatePass::tryReassociateGEPAtIndex(GetElementPtrInst *GEP,
398   // Look for GEP's closest dominator that has the same SCEV as GEP except that
401   for (Use &Index : GEP->indices())
405   if (isKnownNonNegative(LHS, SimplifyQuery(*DL, DT, AC, GEP)) &&
407           DL->getTypeSizeInBits(GEP->getOperand(I)->getType())
414         SE->getZeroExtendExpr(IndexExprs[I], GEP->getOperand(I)->getType());
416   const SCEV *CandidateExpr = SE->getGEPExpr(cast<GEPOperator>(GEP),
419   Value *Candidate = findClosestMatchingDominator(CandidateExpr, GEP);
423   IRBuilder<> Builder(GEP);
424   // Candidate should have the same pointer type as GEP.
425   assert(Candidate->getType() == GEP->getType());
429   Type *ElementType = GEP->getResultElementType();
432   // GEP, the size of the type at the I-th index (IndexedSize) is not
449   Type *PtrIdxTy = DL->getIndexType(GEP->getType());
457       Builder.CreateGEP(GEP->getResultElementType(), Candidate, RHS));
458   NewGEP->setIsInBounds(GEP->isInBounds());
459   NewGEP->takeName(GEP);