700 static bool canReplaceGEPIdxWithZero(InstCombiner &IC, GetElementPtrInst *GEPI,  in canReplaceGEPIdxWithZero()  argument
702   if (GEPI->getNumOperands() < 2)  in canReplaceGEPIdxWithZero()
707   auto FirstNZIdx = [](const GetElementPtrInst *GEPI) {  in canReplaceGEPIdxWithZero()  argument
709     for (unsigned IE = GEPI->getNumOperands(); I != IE; ++I) {  in canReplaceGEPIdxWithZero()
710       Value *V = GEPI->getOperand(I);  in canReplaceGEPIdxWithZero()
723   Idx = FirstNZIdx(GEPI);  in canReplaceGEPIdxWithZero()
724   if (Idx == GEPI->getNumOperands())  in canReplaceGEPIdxWithZero()
726   if (isa<Constant>(GEPI->getOperand(Idx)))  in canReplaceGEPIdxWithZero()
729   SmallVector<Value *, 4> Ops(GEPI->idx_begin(), GEPI->idx_begin() + Idx);  in canReplaceGEPIdxWithZero()
731     GetElementPtrInst::getIndexedType(GEPI->getSourceElementType(), Ops);  in canReplaceGEPIdxWithZero()
742     for (unsigned i = Idx+1, e = GEPI->getNumOperands(); i != e; ++i) {  in canReplaceGEPIdxWithZero()
744       IC.ComputeSignBit(GEPI->getOperand(i), KnownNonNegative,  in canReplaceGEPIdxWithZero()
759   if (Idx+1 != GEPI->getNumOperands() && !GEPI->isInBounds())  in canReplaceGEPIdxWithZero()
764   return isObjectSizeLessThanOrEq(GEPI->getOperand(0), TyAllocSize, DL) &&  in canReplaceGEPIdxWithZero()
774   if (GetElementPtrInst *GEPI = dyn_cast<GetElementPtrInst>(Ptr)) {  in replaceGEPIdxWithZero()  local
776     if (canReplaceGEPIdxWithZero(IC, GEPI, &MemI, Idx)) {  in replaceGEPIdxWithZero()
777       Instruction *NewGEPI = GEPI->clone();  in replaceGEPIdxWithZero()
779         ConstantInt::get(GEPI->getOperand(Idx)->getType(), 0));  in replaceGEPIdxWithZero()
780       NewGEPI->insertBefore(GEPI);  in replaceGEPIdxWithZero()
848   if (GetElementPtrInst *GEPI = dyn_cast<GetElementPtrInst>(Op)) {  in visitLoadInst()  local
849     const Value *GEPI0 = GEPI->getOperand(0);  in visitLoadInst()
851     if (isa<ConstantPointerNull>(GEPI0) && GEPI->getPointerAddressSpace() == 0){  in visitLoadInst()