328 static bool isGEPFoldable(GetElementPtrInst *GEP,  in isGEPFoldable()  argument
330   SmallVector<const Value *, 4> Indices(GEP->indices());  in isGEPFoldable()
331   return TTI->getGEPCost(GEP->getSourceElementType(), GEP->getPointerOperand(),  in isGEPFoldable()
335 Instruction *NaryReassociatePass::tryReassociateGEP(GetElementPtrInst *GEP) {  in tryReassociateGEP()  argument
337   if (isGEPFoldable(GEP, TTI))  in tryReassociateGEP()
340   gep_type_iterator GTI = gep_type_begin(*GEP);  in tryReassociateGEP()
341   for (unsigned I = 1, E = GEP->getNumOperands(); I != E; ++I, ++GTI) {  in tryReassociateGEP()
343       if (auto *NewGEP = tryReassociateGEPAtIndex(GEP, I - 1,  in tryReassociateGEP()
353                                                 GetElementPtrInst *GEP) {  in requiresSignExtension()  argument
355       DL->getPointerSizeInBits(GEP->getType()->getPointerAddressSpace());  in requiresSignExtension()
360 NaryReassociatePass::tryReassociateGEPAtIndex(GetElementPtrInst *GEP,  in tryReassociateGEPAtIndex()  argument
362   Value *IndexToSplit = GEP->getOperand(I + 1);  in tryReassociateGEPAtIndex()
367     if (isKnownNonNegative(ZExt->getOperand(0), *DL, 0, AC, GEP, DT))  in tryReassociateGEPAtIndex()
375     if (requiresSignExtension(IndexToSplit, GEP) &&  in tryReassociateGEPAtIndex()
376         computeOverflowForSignedAdd(AO, *DL, AC, GEP, DT) !=  in tryReassociateGEPAtIndex()
382     if (auto *NewGEP = tryReassociateGEPAtIndex(GEP, I, LHS, RHS, IndexedType))  in tryReassociateGEPAtIndex()
387               tryReassociateGEPAtIndex(GEP, I, RHS, LHS, IndexedType))  in tryReassociateGEPAtIndex()
395 NaryReassociatePass::tryReassociateGEPAtIndex(GetElementPtrInst *GEP,  in tryReassociateGEPAtIndex()  argument
401   for (Use &Index : GEP->indices())  in tryReassociateGEPAtIndex()
405   if (isKnownNonNegative(LHS, *DL, 0, AC, GEP, DT) &&  in tryReassociateGEPAtIndex()
407           DL->getTypeSizeInBits(GEP->getOperand(I)->getType()).getFixedSize()) {  in tryReassociateGEPAtIndex()
413         SE->getZeroExtendExpr(IndexExprs[I], GEP->getOperand(I)->getType());  in tryReassociateGEPAtIndex()
415   const SCEV *CandidateExpr = SE->getGEPExpr(cast<GEPOperator>(GEP),  in tryReassociateGEPAtIndex()
418   Value *Candidate = findClosestMatchingDominator(CandidateExpr, GEP);  in tryReassociateGEPAtIndex()
422   IRBuilder<> Builder(GEP);  in tryReassociateGEPAtIndex()
426   Candidate = Builder.CreateBitOrPointerCast(Candidate, GEP->getType());  in tryReassociateGEPAtIndex()
427   assert(Candidate->getType() == GEP->getType());  in tryReassociateGEPAtIndex()
431   Type *ElementType = GEP->getResultElementType();  in tryReassociateGEPAtIndex()
451   Type *IntPtrTy = DL->getIntPtrType(GEP->getType());  in tryReassociateGEPAtIndex()
459       Builder.CreateGEP(GEP->getResultElementType(), Candidate, RHS));  in tryReassociateGEPAtIndex()
460   NewGEP->setIsInBounds(GEP->isInBounds());  in tryReassociateGEPAtIndex()
461   NewGEP->takeName(GEP);  in tryReassociateGEPAtIndex()