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//===-- AVRMCExpr.h - AVR specific MC expression classes --------*- 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_AVR_MCEXPR_H
#define LLVM_AVR_MCEXPR_H
#include "llvm/MC/MCExpr.h"
#include "MCTargetDesc/AVRFixupKinds.h"
namespace llvm {
/// A expression in AVR machine code.
class AVRMCExpr : public MCSpecifierExpr {
public:
friend class AVRMCAsmInfo;
using Specifier = Spec;
/// Specifies the type of an expression.
public:
/// Creates an AVR machine code expression.
static const AVRMCExpr *create(Specifier S, const MCExpr *Expr,
bool isNegated, MCContext &Ctx);
/// Gets the name of the expression.
const char *getName() const;
/// Gets the fixup which corresponds to the expression.
AVR::Fixups getFixupKind() const;
/// Evaluates the fixup as a constant value.
bool evaluateAsConstant(int64_t &Result) const;
bool isNegated() const { return Negated; }
void setNegated(bool negated = true) { Negated = negated; }
public:
static Specifier parseSpecifier(StringRef Name);
private:
int64_t evaluateAsInt64(int64_t Value) const;
bool Negated;
private:
explicit AVRMCExpr(Specifier S, const MCExpr *Expr, bool Negated)
: MCSpecifierExpr(Expr, S), Negated(Negated) {}
};
} // end namespace llvm
#endif // LLVM_AVR_MCEXPR_H
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