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1//===-- AVRMCExpr.h - AVR specific MC expression classes --------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_AVR_MCEXPR_H10#define LLVM_AVR_MCEXPR_H11 12#include "llvm/MC/MCExpr.h"13 14#include "MCTargetDesc/AVRFixupKinds.h"15 16namespace llvm {17 18/// A expression in AVR machine code.19class AVRMCExpr : public MCSpecifierExpr {20public:21 friend class AVRMCAsmInfo;22 using Specifier = Spec;23 /// Specifies the type of an expression.24 25public:26 /// Creates an AVR machine code expression.27 static const AVRMCExpr *create(Specifier S, const MCExpr *Expr,28 bool isNegated, MCContext &Ctx);29 30 /// Gets the name of the expression.31 const char *getName() const;32 /// Gets the fixup which corresponds to the expression.33 AVR::Fixups getFixupKind() const;34 /// Evaluates the fixup as a constant value.35 bool evaluateAsConstant(int64_t &Result) const;36 37 bool isNegated() const { return Negated; }38 void setNegated(bool negated = true) { Negated = negated; }39 40public:41 static Specifier parseSpecifier(StringRef Name);42 43private:44 int64_t evaluateAsInt64(int64_t Value) const;45 46 bool Negated;47 48private:49 explicit AVRMCExpr(Specifier S, const MCExpr *Expr, bool Negated)50 : MCSpecifierExpr(Expr, S), Negated(Negated) {}51};52 53} // end namespace llvm54 55#endif // LLVM_AVR_MCEXPR_H56