195   bool isInterestingAlloca(const AllocaInst &AI);
196   bool tagAlloca(IRBuilder<> &IRB, AllocaInst *AI, Value *Tag);
203   Value *getAllocaTag(IRBuilder<> &IRB, Value *StackTag, AllocaInst *AI,
634 static uint64_t getAllocaSizeInBytes(const AllocaInst &AI) {  in getAllocaSizeInBytes()  argument
636   if (AI.isArrayAllocation()) {  in getAllocaSizeInBytes()
637     const ConstantInt *CI = dyn_cast<ConstantInt>(AI.getArraySize());  in getAllocaSizeInBytes()
641   Type *Ty = AI.getAllocatedType();  in getAllocaSizeInBytes()
642   uint64_t SizeInBytes = AI.getModule()->getDataLayout().getTypeAllocSize(Ty);  in getAllocaSizeInBytes()
646 bool HWAddressSanitizer::tagAlloca(IRBuilder<> &IRB, AllocaInst *AI,  in tagAlloca()  argument
648   size_t Size = (getAllocaSizeInBytes(*AI) + Mapping.getAllocaAlignment() - 1) &  in tagAlloca()
654                    {IRB.CreatePointerCast(AI, Int8PtrTy), JustTag,  in tagAlloca()
659         memToShadow(IRB.CreatePointerCast(AI, IntptrTy), AI->getType(), IRB),  in tagAlloca()
710                                         AllocaInst *AI, unsigned AllocaNo) {  in getAllocaTag()  argument
783   for (auto AI : Allocas)  in createFrameString()  local
784     Descr << getAllocaSizeInBytes(*AI) << " " <<  AI->getName().str() << "; ";  in createFrameString()
899     auto *AI = Allocas[N];  in instrumentStack()  local
900     IRBuilder<> IRB(AI->getNextNode());  in instrumentStack()
903     Value *Tag = getAllocaTag(IRB, StackTag, AI, N);  in instrumentStack()
904     Value *AILong = IRB.CreatePointerCast(AI, IntptrTy);  in instrumentStack()
905     Value *Replacement = tagPointer(IRB, AI->getType(), AILong, Tag);  in instrumentStack()
907         AI->hasName() ? AI->getName().str() : "alloca." + itostr(N);  in instrumentStack()
910     for (auto UI = AI->use_begin(), UE = AI->use_end(); UI != UE;) {  in instrumentStack()
916     tagAlloca(IRB, AI, Tag);  in instrumentStack()
923       tagAlloca(IRB, AI, Tag);  in instrumentStack()
930 bool HWAddressSanitizer::isInterestingAlloca(const AllocaInst &AI) {  in isInterestingAlloca()  argument
931   return (AI.getAllocatedType()->isSized() &&  in isInterestingAlloca()
933           AI.isStaticAlloca() &&  in isInterestingAlloca()
935           getAllocaSizeInBytes(AI) > 0 &&  in isInterestingAlloca()
938           !isAllocaPromotable(&AI) &&  in isInterestingAlloca()
941           !AI.isUsedWithInAlloca() &&  in isInterestingAlloca()
943           !AI.isSwiftError());  in isInterestingAlloca()
961         if (AllocaInst *AI = dyn_cast<AllocaInst>(&Inst)) {  in runOnFunction()  local
964           if (AI->getAlignment() < Mapping.getAllocaAlignment())  in runOnFunction()
965             AI->setAlignment(Mapping.getAllocaAlignment());  in runOnFunction()
967           if (isInterestingAlloca(*AI))  in runOnFunction()
968             AllocasToInstrument.push_back(AI);  in runOnFunction()