llvm-6502/include/llvm/MC/MCObjectFormat.h
2010-10-19 00:37:30 +00:00

55 lines
1.4 KiB
C++

//===-- llvm/MC/MCObjectFormat.h - Object Format Info -----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MCOBJECTFORMAT_H
#define LLVM_MC_MCOBJECTFORMAT_H
namespace llvm {
class MCSymbol;
class MCObjectFormat {
public:
virtual ~MCObjectFormat();
/// isAbsolute - Check if A - B is an absolute value
///
/// \param InSet - True if this expression is in a set. For example:
/// a:
/// ...
/// b:
/// tmp = a - b
/// .long tmp
/// \param A - LHS
/// \param B - RHS
virtual bool isAbsolute(bool InSet, const MCSymbol &A,
const MCSymbol &B) const = 0;
};
class MCELFObjectFormat : public MCObjectFormat {
public:
virtual bool isAbsolute(bool InSet, const MCSymbol &A,
const MCSymbol &B) const;
};
class MCMachOObjectFormat : public MCObjectFormat {
public:
virtual bool isAbsolute(bool InSet, const MCSymbol &A,
const MCSymbol &B) const;
};
class MCCOFFObjectFormat : public MCObjectFormat {
public:
virtual bool isAbsolute(bool InSet, const MCSymbol &A,
const MCSymbol &B) const;
};
} // End llvm namespace
#endif