1 //===--------- Definition of the AddressSanitizer class ---------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file declares common infrastructure for AddressSanitizer and 11 // HWAddressSanitizer. 12 // 13 //===----------------------------------------------------------------------===// 14 #ifndef LLVM_TRANSFORMS_INSTRUMENTATION_ADDRESSSANITIZERCOMMON_H 15 #define LLVM_TRANSFORMS_INSTRUMENTATION_ADDRESSSANITIZERCOMMON_H 16 17 #include "llvm/IR/Instruction.h" 18 #include "llvm/IR/Module.h" 19 20 namespace llvm { 21 22 class InterestingMemoryOperand { 23 public: 24 Use *PtrUse; 25 bool IsWrite; 26 Type *OpType; 27 uint64_t TypeSize; 28 MaybeAlign Alignment; 29 // The mask Value, if we're looking at a masked load/store. 30 Value *MaybeMask; 31 32 InterestingMemoryOperand(Instruction *I, unsigned OperandNo, bool IsWrite, 33 class Type *OpType, MaybeAlign Alignment, 34 Value *MaybeMask = nullptr) IsWrite(IsWrite)35 : IsWrite(IsWrite), OpType(OpType), Alignment(Alignment), 36 MaybeMask(MaybeMask) { 37 const DataLayout &DL = I->getModule()->getDataLayout(); 38 TypeSize = DL.getTypeStoreSizeInBits(OpType); 39 PtrUse = &I->getOperandUse(OperandNo); 40 } 41 getInsn()42 Instruction *getInsn() { return cast<Instruction>(PtrUse->getUser()); } 43 getPtr()44 Value *getPtr() { return PtrUse->get(); } 45 }; 46 47 } // namespace llvm 48 49 #endif 50