Transforms/InstCombine/InstCombinePHI.cpp

136   // This is true if all GEP bases are allocas and if all indices into them are
149     GetElementPtrInst *GEP= dyn_cast<GetElementPtrInst>(PN.getIncomingValue(i));
150     if (!GEP || !GEP->hasOneUse() || GEP->getType() != FirstInst->getType() ||
151       GEP->getNumOperands() != FirstInst->getNumOperands())
154     AllInBounds &= GEP->isInBounds();
158         (!isa<AllocaInst>(GEP->getOperand(0)) ||
159          !GEP->hasAllConstantIndices()))
164       if (FirstInst->getOperand(op) == GEP->getOperand(op))
173           isa<ConstantInt>(GEP->getOperand(op)))
176       if (FirstInst->getOperand(op)->getType() !=GEP->getOperand(op)->getType())
273   // If this load is a load from a GEP with a constant offset from an alloca,
278   if (GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(L->getOperand(0)))
279     if (AllocaInst *AI = dyn_cast<AllocaInst>(GEP->getOperand(0)))
280       if (AI->isStaticAlloca() && GEP->hasAllConstantIndices())