forked from OSchip/llvm-project
168 lines
4.8 KiB
C++
168 lines
4.8 KiB
C++
//==- AArch64MCExpr.h - AArch64 specific MC expression classes --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file describes AArch64-specific MCExprs, used for modifiers like
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// ":lo12:" or ":gottprel_g1:".
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_AARCH64MCEXPR_H
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#define LLVM_AARCH64MCEXPR_H
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#include "llvm/MC/MCExpr.h"
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namespace llvm {
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class AArch64MCExpr : public MCTargetExpr {
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public:
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enum VariantKind {
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VK_AARCH64_None,
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VK_AARCH64_GOT, // :got: modifier in assembly
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VK_AARCH64_GOT_LO12, // :got_lo12:
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VK_AARCH64_LO12, // :lo12:
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VK_AARCH64_ABS_G0, // :abs_g0:
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VK_AARCH64_ABS_G0_NC, // :abs_g0_nc:
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VK_AARCH64_ABS_G1,
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VK_AARCH64_ABS_G1_NC,
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VK_AARCH64_ABS_G2,
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VK_AARCH64_ABS_G2_NC,
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VK_AARCH64_ABS_G3,
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VK_AARCH64_SABS_G0, // :abs_g0_s:
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VK_AARCH64_SABS_G1,
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VK_AARCH64_SABS_G2,
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VK_AARCH64_DTPREL_G2, // :dtprel_g2:
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VK_AARCH64_DTPREL_G1,
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VK_AARCH64_DTPREL_G1_NC,
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VK_AARCH64_DTPREL_G0,
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VK_AARCH64_DTPREL_G0_NC,
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VK_AARCH64_DTPREL_HI12,
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VK_AARCH64_DTPREL_LO12,
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VK_AARCH64_DTPREL_LO12_NC,
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VK_AARCH64_GOTTPREL_G1, // :gottprel:
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VK_AARCH64_GOTTPREL_G0_NC,
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VK_AARCH64_GOTTPREL,
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VK_AARCH64_GOTTPREL_LO12,
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VK_AARCH64_TPREL_G2, // :tprel:
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VK_AARCH64_TPREL_G1,
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VK_AARCH64_TPREL_G1_NC,
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VK_AARCH64_TPREL_G0,
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VK_AARCH64_TPREL_G0_NC,
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VK_AARCH64_TPREL_HI12,
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VK_AARCH64_TPREL_LO12,
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VK_AARCH64_TPREL_LO12_NC,
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VK_AARCH64_TLSDESC, // :tlsdesc:
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VK_AARCH64_TLSDESC_LO12
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};
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private:
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const VariantKind Kind;
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const MCExpr *Expr;
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explicit AArch64MCExpr(VariantKind _Kind, const MCExpr *_Expr)
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: Kind(_Kind), Expr(_Expr) {}
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public:
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/// @name Construction
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/// @{
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static const AArch64MCExpr *Create(VariantKind Kind, const MCExpr *Expr,
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MCContext &Ctx);
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static const AArch64MCExpr *CreateLo12(const MCExpr *Expr, MCContext &Ctx) {
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return Create(VK_AARCH64_LO12, Expr, Ctx);
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}
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static const AArch64MCExpr *CreateGOT(const MCExpr *Expr, MCContext &Ctx) {
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return Create(VK_AARCH64_GOT, Expr, Ctx);
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}
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static const AArch64MCExpr *CreateGOTLo12(const MCExpr *Expr,
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MCContext &Ctx) {
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return Create(VK_AARCH64_GOT_LO12, Expr, Ctx);
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}
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static const AArch64MCExpr *CreateDTPREL_G1(const MCExpr *Expr,
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MCContext &Ctx) {
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return Create(VK_AARCH64_DTPREL_G1, Expr, Ctx);
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}
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static const AArch64MCExpr *CreateDTPREL_G0_NC(const MCExpr *Expr,
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MCContext &Ctx) {
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return Create(VK_AARCH64_DTPREL_G0_NC, Expr, Ctx);
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}
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static const AArch64MCExpr *CreateGOTTPREL(const MCExpr *Expr,
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MCContext &Ctx) {
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return Create(VK_AARCH64_GOTTPREL, Expr, Ctx);
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}
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static const AArch64MCExpr *CreateGOTTPRELLo12(const MCExpr *Expr,
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MCContext &Ctx) {
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return Create(VK_AARCH64_GOTTPREL_LO12, Expr, Ctx);
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}
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static const AArch64MCExpr *CreateTLSDesc(const MCExpr *Expr,
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MCContext &Ctx) {
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return Create(VK_AARCH64_TLSDESC, Expr, Ctx);
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}
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static const AArch64MCExpr *CreateTLSDescLo12(const MCExpr *Expr,
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MCContext &Ctx) {
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return Create(VK_AARCH64_TLSDESC_LO12, Expr, Ctx);
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}
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static const AArch64MCExpr *CreateTPREL_G1(const MCExpr *Expr,
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MCContext &Ctx) {
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return Create(VK_AARCH64_TPREL_G1, Expr, Ctx);
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}
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static const AArch64MCExpr *CreateTPREL_G0_NC(const MCExpr *Expr,
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MCContext &Ctx) {
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return Create(VK_AARCH64_TPREL_G0_NC, Expr, Ctx);
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}
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/// @}
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/// @name Accessors
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/// @{
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/// getOpcode - Get the kind of this expression.
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VariantKind getKind() const { return Kind; }
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/// getSubExpr - Get the child of this expression.
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const MCExpr *getSubExpr() const { return Expr; }
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/// @}
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void PrintImpl(raw_ostream &OS) const;
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bool EvaluateAsRelocatableImpl(MCValue &Res,
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const MCAsmLayout *Layout) const;
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void AddValueSymbols(MCAssembler *) const;
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const MCSection *FindAssociatedSection() const {
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return getSubExpr()->FindAssociatedSection();
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}
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void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const;
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static bool classof(const MCExpr *E) {
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return E->getKind() == MCExpr::Target;
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}
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static bool classof(const AArch64MCExpr *) { return true; }
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};
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} // end namespace llvm
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#endif
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