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//===--------- Definition of the AddressSanitizer class ---------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file declares common infrastructure for AddressSanitizer and
// HWAddressSanitizer.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_INSTRUMENTATION_ADDRESSSANITIZERCOMMON_H
#define LLVM_TRANSFORMS_INSTRUMENTATION_ADDRESSSANITIZERCOMMON_H
#include "llvm/Analysis/CFG.h"
#include "llvm/Analysis/PostDominators.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Module.h"
namespace llvm {
class InterestingMemoryOperand {
public:
Use *PtrUse;
bool IsWrite;
Type *OpType;
TypeSize TypeStoreSize = TypeSize::getFixed(0);
MaybeAlign Alignment;
// The mask Value, if we're looking at a masked load/store.
Value *MaybeMask;
// The EVL Value, if we're looking at a vp intrinsic.
Value *MaybeEVL;
// The Stride Value, if we're looking at a strided load/store.
Value *MaybeStride;
InterestingMemoryOperand(Instruction *I, unsigned OperandNo, bool IsWrite,
class Type *OpType, MaybeAlign Alignment,
Value *MaybeMask = nullptr,
Value *MaybeEVL = nullptr,
Value *MaybeStride = nullptr)
: IsWrite(IsWrite), OpType(OpType), Alignment(Alignment),
MaybeMask(MaybeMask), MaybeEVL(MaybeEVL), MaybeStride(MaybeStride) {
const DataLayout &DL = I->getDataLayout();
TypeStoreSize = DL.getTypeStoreSizeInBits(OpType);
PtrUse = &I->getOperandUse(OperandNo);
}
Instruction *getInsn() { return cast<Instruction>(PtrUse->getUser()); }
Value *getPtr() { return PtrUse->get(); }
};
// Get AddressSanitizer parameters.
void getAddressSanitizerParams(const Triple &TargetTriple, int LongSize,
bool IsKasan, uint64_t *ShadowBase,
int *MappingScale, bool *OrShadowOffset);
} // namespace llvm
#endif
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