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//= LoongArchMCExpr.h - LoongArch 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
//
//===----------------------------------------------------------------------===//
//
// This file describes LoongArch-specific MCExprs, used for modifiers like
// "%pc_hi20" or "%pc_lo12" etc.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_LOONGARCH_MCTARGETDESC_LOONGARCHMCEXPR_H
#define LLVM_LIB_TARGET_LOONGARCH_MCTARGETDESC_LOONGARCHMCEXPR_H
#include "llvm/MC/MCExpr.h"
namespace llvm {
class StringRef;
class LoongArchMCExpr : public MCTargetExpr {
public:
enum VariantKind {
VK_LoongArch_None,
VK_LoongArch_CALL,
VK_LoongArch_CALL_PLT,
VK_LoongArch_B16,
VK_LoongArch_B21,
VK_LoongArch_B26,
VK_LoongArch_ABS_HI20,
VK_LoongArch_ABS_LO12,
VK_LoongArch_ABS64_LO20,
VK_LoongArch_ABS64_HI12,
VK_LoongArch_PCALA_HI20,
VK_LoongArch_PCALA_LO12,
VK_LoongArch_PCALA64_LO20,
VK_LoongArch_PCALA64_HI12,
VK_LoongArch_GOT_PC_HI20,
VK_LoongArch_GOT_PC_LO12,
VK_LoongArch_GOT64_PC_LO20,
VK_LoongArch_GOT64_PC_HI12,
VK_LoongArch_GOT_HI20,
VK_LoongArch_GOT_LO12,
VK_LoongArch_GOT64_LO20,
VK_LoongArch_GOT64_HI12,
VK_LoongArch_TLS_LE_HI20,
VK_LoongArch_TLS_LE_LO12,
VK_LoongArch_TLS_LE64_LO20,
VK_LoongArch_TLS_LE64_HI12,
VK_LoongArch_TLS_IE_PC_HI20,
VK_LoongArch_TLS_IE_PC_LO12,
VK_LoongArch_TLS_IE64_PC_LO20,
VK_LoongArch_TLS_IE64_PC_HI12,
VK_LoongArch_TLS_IE_HI20,
VK_LoongArch_TLS_IE_LO12,
VK_LoongArch_TLS_IE64_LO20,
VK_LoongArch_TLS_IE64_HI12,
VK_LoongArch_TLS_LD_PC_HI20,
VK_LoongArch_TLS_LD_HI20,
VK_LoongArch_TLS_GD_PC_HI20,
VK_LoongArch_TLS_GD_HI20,
VK_LoongArch_CALL36,
VK_LoongArch_TLS_DESC_PC_HI20,
VK_LoongArch_TLS_DESC_PC_LO12,
VK_LoongArch_TLS_DESC64_PC_LO20,
VK_LoongArch_TLS_DESC64_PC_HI12,
VK_LoongArch_TLS_DESC_HI20,
VK_LoongArch_TLS_DESC_LO12,
VK_LoongArch_TLS_DESC64_LO20,
VK_LoongArch_TLS_DESC64_HI12,
VK_LoongArch_TLS_DESC_LD,
VK_LoongArch_TLS_DESC_CALL,
VK_LoongArch_TLS_LE_HI20_R,
VK_LoongArch_TLS_LE_ADD_R,
VK_LoongArch_TLS_LE_LO12_R,
VK_LoongArch_PCREL20_S2,
VK_LoongArch_TLS_LD_PCREL20_S2,
VK_LoongArch_TLS_GD_PCREL20_S2,
VK_LoongArch_TLS_DESC_PCREL20_S2,
VK_LoongArch_Invalid // Must be the last item.
};
private:
const MCExpr *Expr;
const VariantKind Kind;
const bool RelaxHint;
explicit LoongArchMCExpr(const MCExpr *Expr, VariantKind Kind, bool Hint)
: Expr(Expr), Kind(Kind), RelaxHint(Hint) {}
public:
static const LoongArchMCExpr *create(const MCExpr *Expr, VariantKind Kind,
MCContext &Ctx, bool Hint = false);
VariantKind getKind() const { return Kind; }
const MCExpr *getSubExpr() const { return Expr; }
bool getRelaxHint() const { return RelaxHint; }
void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
bool evaluateAsRelocatableImpl(MCValue &Res, const MCAssembler *Asm,
const MCFixup *Fixup) const override;
void visitUsedExpr(MCStreamer &Streamer) const override;
MCFragment *findAssociatedFragment() const override {
return getSubExpr()->findAssociatedFragment();
}
void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override;
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Target;
}
static StringRef getVariantKindName(VariantKind Kind);
static VariantKind getVariantKindForName(StringRef name);
};
} // end namespace llvm
#endif
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