56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
//===-- AVRMCExpr.h - AVR specific MC expression classes --------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_AVR_MCEXPR_H
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#define LLVM_AVR_MCEXPR_H
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#include "llvm/MC/MCExpr.h"
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#include "MCTargetDesc/AVRFixupKinds.h"
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namespace llvm {
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/// A expression in AVR machine code.
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class AVRMCExpr : public MCSpecifierExpr {
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public:
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friend class AVRMCAsmInfo;
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using Specifier = Spec;
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/// Specifies the type of an expression.
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public:
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/// Creates an AVR machine code expression.
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static const AVRMCExpr *create(Specifier S, const MCExpr *Expr,
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bool isNegated, MCContext &Ctx);
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/// Gets the name of the expression.
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const char *getName() const;
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/// Gets the fixup which corresponds to the expression.
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AVR::Fixups getFixupKind() const;
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/// Evaluates the fixup as a constant value.
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bool evaluateAsConstant(int64_t &Result) const;
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bool isNegated() const { return Negated; }
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void setNegated(bool negated = true) { Negated = negated; }
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public:
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static Specifier parseSpecifier(StringRef Name);
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private:
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int64_t evaluateAsInt64(int64_t Value) const;
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bool Negated;
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private:
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explicit AVRMCExpr(Specifier S, const MCExpr *Expr, bool Negated)
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: MCSpecifierExpr(Expr, S), Negated(Negated) {}
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};
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} // end namespace llvm
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#endif // LLVM_AVR_MCEXPR_H
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