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https://github.com/c64scene-ar/llvm-6502.git
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7521964d28
This starts merging MCSection and MCSectionData. There are a few issues with the current split between MCSection and MCSectionData. * It optimizes the the not as important case. We want the production of .o files to be really fast, but the split puts the information used for .o emission in a separate data structure. * The ELF/COFF/MachO hierarchy is not represented in MCSectionData, leading to some ad-hoc ways to represent the various flags. * It makes it harder to remember where each item is. The attached patch starts merging the two by moving the alignment from MCSectionData to MCSection. Most of the patch is actually just dropping 'const', since MCSectionData is mutable, but MCSection was not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237936 91177308-0d34-0410-b5e6-96231b3b80d8
113 lines
3.0 KiB
C++
113 lines
3.0 KiB
C++
//====- SparcMCExpr.h - Sparc 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 Sparc-specific MCExprs, used for modifiers like
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// "%hi" or "%lo" etc.,
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_SPARC_MCTARGETDESC_SPARCMCEXPR_H
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#define LLVM_LIB_TARGET_SPARC_MCTARGETDESC_SPARCMCEXPR_H
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#include "SparcFixupKinds.h"
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#include "llvm/MC/MCExpr.h"
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namespace llvm {
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class StringRef;
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class SparcMCExpr : public MCTargetExpr {
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public:
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enum VariantKind {
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VK_Sparc_None,
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VK_Sparc_LO,
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VK_Sparc_HI,
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VK_Sparc_H44,
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VK_Sparc_M44,
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VK_Sparc_L44,
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VK_Sparc_HH,
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VK_Sparc_HM,
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VK_Sparc_PC22,
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VK_Sparc_PC10,
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VK_Sparc_GOT22,
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VK_Sparc_GOT10,
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VK_Sparc_WPLT30,
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VK_Sparc_R_DISP32,
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VK_Sparc_TLS_GD_HI22,
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VK_Sparc_TLS_GD_LO10,
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VK_Sparc_TLS_GD_ADD,
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VK_Sparc_TLS_GD_CALL,
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VK_Sparc_TLS_LDM_HI22,
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VK_Sparc_TLS_LDM_LO10,
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VK_Sparc_TLS_LDM_ADD,
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VK_Sparc_TLS_LDM_CALL,
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VK_Sparc_TLS_LDO_HIX22,
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VK_Sparc_TLS_LDO_LOX10,
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VK_Sparc_TLS_LDO_ADD,
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VK_Sparc_TLS_IE_HI22,
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VK_Sparc_TLS_IE_LO10,
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VK_Sparc_TLS_IE_LD,
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VK_Sparc_TLS_IE_LDX,
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VK_Sparc_TLS_IE_ADD,
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VK_Sparc_TLS_LE_HIX22,
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VK_Sparc_TLS_LE_LOX10
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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 SparcMCExpr(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 SparcMCExpr *Create(VariantKind Kind, const MCExpr *Expr,
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MCContext &Ctx);
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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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/// getFixupKind - Get the fixup kind of this expression.
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Sparc::Fixups getFixupKind() const { return getFixupKind(Kind); }
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/// @}
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void PrintImpl(raw_ostream &OS) const override;
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bool EvaluateAsRelocatableImpl(MCValue &Res,
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const MCAsmLayout *Layout,
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const MCFixup *Fixup) const override;
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void visitUsedExpr(MCStreamer &Streamer) const override;
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MCSection *FindAssociatedSection() const override {
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return getSubExpr()->FindAssociatedSection();
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}
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void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override;
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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 SparcMCExpr *) { return true; }
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static VariantKind parseVariantKind(StringRef name);
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static bool printVariantKind(raw_ostream &OS, VariantKind Kind);
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static Sparc::Fixups getFixupKind(VariantKind Kind);
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};
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} // end namespace llvm.
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#endif
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