b19b6d9fab
Similar to previous migration done for other targets (PowerPC, X86, ARM, etc). Switch from the confusing VariantKind to Specifier, which aligns with Arm and IBM AIX's documentation. In addition, rename *MCExpr::getKind, which confusingly shadows the base class getKind. In the future, relocation specifiers should be encoded as part of SystemZMCExpr instead of MCSymbolRefExpr.
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
//===-- SystemZMCExpr.h - SystemZ 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_LIB_TARGET_SYSTEMZ_MCTARGETDESC_SYSTEMZMCEXPR_H
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#define LLVM_LIB_TARGET_SYSTEMZ_MCTARGETDESC_SYSTEMZMCEXPR_H
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#include "llvm/MC/MCExpr.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/MC/MCValue.h"
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namespace llvm {
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class SystemZMCExpr : public MCTargetExpr {
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public:
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enum Specifier : uint8_t {
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VK_None,
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VK_DTPOFF = MCSymbolRefExpr::FirstTargetSpecifier,
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VK_GOT,
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VK_GOTENT,
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VK_INDNTPOFF,
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VK_NTPOFF,
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VK_PLT,
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VK_TLSGD,
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VK_TLSLD,
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VK_TLSLDM,
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// HLASM docs for address constants:
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// https://www.ibm.com/docs/en/hla-and-tf/1.6?topic=value-address-constants
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VK_SystemZ_RCon, // Address of ADA of symbol.
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VK_SystemZ_VCon, // Address of external function symbol.
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};
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private:
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const Specifier specifier;
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const MCExpr *Expr;
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explicit SystemZMCExpr(Specifier S, const MCExpr *Expr)
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: specifier(S), Expr(Expr) {}
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public:
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static const SystemZMCExpr *create(Specifier Kind, const MCExpr *Expr,
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MCContext &Ctx);
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Specifier getSpecifier() const { return specifier; }
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const MCExpr *getSubExpr() const { return Expr; }
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StringRef getVariantKindName() const;
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void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
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bool evaluateAsRelocatableImpl(MCValue &Res,
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const MCAssembler *Asm) const override;
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void visitUsedExpr(MCStreamer &Streamer) const override {
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Streamer.visitUsedExpr(*getSubExpr());
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}
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MCFragment *findAssociatedFragment() const override {
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return getSubExpr()->findAssociatedFragment();
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}
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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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};
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static inline SystemZMCExpr::Specifier
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getSpecifier(const MCSymbolRefExpr *SRE) {
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return SystemZMCExpr::Specifier(SRE->getKind());
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}
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} // end namespace llvm
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#endif
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