262   bool isInterestingAlloca(const AllocaInst &AI);
263   bool tagAlloca(IRBuilder<> &IRB, AllocaInst *AI, Value *Tag, size_t Size);
274   Value *getAllocaTag(IRBuilder<> &IRB, Value *StackTag, AllocaInst *AI,
959 static uint64_t getAllocaSizeInBytes(const AllocaInst &AI) {  in getAllocaSizeInBytes()  argument
961   if (AI.isArrayAllocation()) {  in getAllocaSizeInBytes()
962     const ConstantInt *CI = dyn_cast<ConstantInt>(AI.getArraySize());  in getAllocaSizeInBytes()
966   Type *Ty = AI.getAllocatedType();  in getAllocaSizeInBytes()
967   uint64_t SizeInBytes = AI.getModule()->getDataLayout().getTypeAllocSize(Ty);  in getAllocaSizeInBytes()
971 bool HWAddressSanitizer::tagAlloca(IRBuilder<> &IRB, AllocaInst *AI, Value *Tag,  in tagAlloca()  argument
980                    {IRB.CreatePointerCast(AI, Int8PtrTy), JustTag,  in tagAlloca()
984     Value *ShadowPtr = memToShadow(IRB.CreatePointerCast(AI, IntptrTy), IRB);  in tagAlloca()
998                                    Int8Ty, IRB.CreateBitCast(AI, Int8PtrTy),  in tagAlloca()
1066                                         AllocaInst *AI, unsigned AllocaNo) {  in getAllocaTag()  argument
1244     auto *AI = Allocas[N];  in instrumentStack()  local
1245     IRBuilder<> IRB(AI->getNextNode());  in instrumentStack()
1248     Value *Tag = getAllocaTag(IRB, StackTag, AI, N);  in instrumentStack()
1249     Value *AILong = IRB.CreatePointerCast(AI, IntptrTy);  in instrumentStack()
1250     Value *Replacement = tagPointer(IRB, AI->getType(), AILong, Tag);  in instrumentStack()
1252         AI->hasName() ? AI->getName().str() : "alloca." + itostr(N);  in instrumentStack()
1255     AI->replaceUsesWithIf(Replacement,  in instrumentStack()
1258     for (auto *DDI : AllocaDbgMap.lookup(AI)) {  in instrumentStack()
1265         if (DDI->getVariableLocationOp(LocNo) == AI)  in instrumentStack()
1270     size_t Size = getAllocaSizeInBytes(*AI);  in instrumentStack()
1271     tagAlloca(IRB, AI, Tag, Size);  in instrumentStack()
1278       tagAlloca(IRB, AI, Tag, alignTo(Size, Mapping.getObjectAlignment()));  in instrumentStack()
1285 bool HWAddressSanitizer::isInterestingAlloca(const AllocaInst &AI) {  in isInterestingAlloca()  argument
1286   return (AI.getAllocatedType()->isSized() &&  in isInterestingAlloca()
1288           AI.isStaticAlloca() &&  in isInterestingAlloca()
1290           getAllocaSizeInBytes(AI) > 0 &&  in isInterestingAlloca()
1293           !isAllocaPromotable(&AI) &&  in isInterestingAlloca()
1296           !AI.isUsedWithInAlloca() &&  in isInterestingAlloca()
1298           !AI.isSwiftError()) &&  in isInterestingAlloca()
1300          !(SSI && SSI->isSafe(AI));  in isInterestingAlloca()
1321         if (AllocaInst *AI = dyn_cast<AllocaInst>(&Inst)) {  in sanitizeFunction()  local
1322           if (isInterestingAlloca(*AI))  in sanitizeFunction()
1323             AllocasToInstrument.push_back(AI);  in sanitizeFunction()
1386   for (AllocaInst *AI : AllocasToInstrument) {  in sanitizeFunction()
1387     uint64_t Size = getAllocaSizeInBytes(*AI);  in sanitizeFunction()
1389     AI->setAlignment(  in sanitizeFunction()
1390         Align(std::max(AI->getAlignment(), Mapping.getObjectAlignment())));  in sanitizeFunction()
1392       Type *AllocatedType = AI->getAllocatedType();  in sanitizeFunction()
1393       if (AI->isArrayAllocation()) {  in sanitizeFunction()
1395             cast<ConstantInt>(AI->getArraySize())->getZExtValue();  in sanitizeFunction()
1401           TypeWithPadding, AI->getType()->getAddressSpace(), nullptr, "", AI);  in sanitizeFunction()
1402       NewAI->takeName(AI);  in sanitizeFunction()
1403       NewAI->setAlignment(AI->getAlign());  in sanitizeFunction()
1404       NewAI->setUsedWithInAlloca(AI->isUsedWithInAlloca());  in sanitizeFunction()
1405       NewAI->setSwiftError(AI->isSwiftError());  in sanitizeFunction()
1406       NewAI->copyMetadata(*AI);  in sanitizeFunction()
1407       auto *Bitcast = new BitCastInst(NewAI, AI->getType(), "", AI);  in sanitizeFunction()
1408       AI->replaceAllUsesWith(Bitcast);  in sanitizeFunction()
1409       AllocaToPaddedAllocaMap[AI] = NewAI;  in sanitizeFunction()
1420             if (auto *AI = dyn_cast_or_null<AllocaInst>(V)) {  in sanitizeFunction()  local
1421               if (auto *NewAI = AllocaToPaddedAllocaMap.lookup(AI))  in sanitizeFunction()
1441       if (auto *AI = dyn_cast<AllocaInst>(I))  in sanitizeFunction()  local
1442         if (isa<ConstantInt>(AI->getArraySize()))  in sanitizeFunction()