mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-10 22:55:57 +00:00
into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
150 lines
5.6 KiB
C++
150 lines
5.6 KiB
C++
//===-- llvm/Target/TargetLoweringObjectFile.h - Object Info ----*- 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 implements classes used to handle lowerings specific to common
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// object file formats.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TARGET_TARGETLOWERINGOBJECTFILE_H
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#define LLVM_TARGET_TARGETLOWERINGOBJECTFILE_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/IR/Module.h"
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#include "llvm/MC/MCObjectFileInfo.h"
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#include "llvm/MC/SectionKind.h"
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namespace llvm {
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class MachineModuleInfo;
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class Mangler;
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class MCContext;
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class MCExpr;
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class MCSection;
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class MCSymbol;
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class MCSymbolRefExpr;
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class MCStreamer;
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class GlobalValue;
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class TargetMachine;
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class TargetLoweringObjectFile : public MCObjectFileInfo {
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MCContext *Ctx;
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TargetLoweringObjectFile(
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const TargetLoweringObjectFile&) LLVM_DELETED_FUNCTION;
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void operator=(const TargetLoweringObjectFile&) LLVM_DELETED_FUNCTION;
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public:
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MCContext &getContext() const { return *Ctx; }
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TargetLoweringObjectFile() : MCObjectFileInfo(), Ctx(0) {}
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virtual ~TargetLoweringObjectFile();
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/// Initialize - this method must be called before any actual lowering is
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/// done. This specifies the current context for codegen, and gives the
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/// lowering implementations a chance to set up their default sections.
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virtual void Initialize(MCContext &ctx, const TargetMachine &TM);
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virtual void emitPersonalityValue(MCStreamer &Streamer,
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const TargetMachine &TM,
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const MCSymbol *Sym) const;
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/// emitModuleFlags - Emit the module flags that the platform cares about.
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virtual void emitModuleFlags(MCStreamer &,
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ArrayRef<Module::ModuleFlagEntry>,
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Mangler *, const TargetMachine &) const {
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}
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/// shouldEmitUsedDirectiveFor - This hook allows targets to selectively
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/// decide not to emit the UsedDirective for some symbols in llvm.used.
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/// FIXME: REMOVE this (rdar://7071300)
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virtual bool shouldEmitUsedDirectiveFor(const GlobalValue *GV,
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Mangler *) const {
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return GV != 0;
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}
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/// getSectionForConstant - Given a constant with the SectionKind, return a
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/// section that it should be placed in.
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virtual const MCSection *getSectionForConstant(SectionKind Kind) const;
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/// getKindForGlobal - Classify the specified global variable into a set of
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/// target independent categories embodied in SectionKind.
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static SectionKind getKindForGlobal(const GlobalValue *GV,
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const TargetMachine &TM);
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/// SectionForGlobal - This method computes the appropriate section to emit
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/// the specified global variable or function definition. This should not
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/// be passed external (or available externally) globals.
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const MCSection *SectionForGlobal(const GlobalValue *GV,
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SectionKind Kind, Mangler *Mang,
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const TargetMachine &TM) const;
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/// SectionForGlobal - This method computes the appropriate section to emit
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/// the specified global variable or function definition. This should not
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/// be passed external (or available externally) globals.
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const MCSection *SectionForGlobal(const GlobalValue *GV,
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Mangler *Mang,
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const TargetMachine &TM) const {
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return SectionForGlobal(GV, getKindForGlobal(GV, TM), Mang, TM);
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}
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/// getExplicitSectionGlobal - Targets should implement this method to assign
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/// a section to globals with an explicit section specfied. The
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/// implementation of this method can assume that GV->hasSection() is true.
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virtual const MCSection *
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getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
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Mangler *Mang, const TargetMachine &TM) const = 0;
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/// getSpecialCasedSectionGlobals - Allow the target to completely override
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/// section assignment of a global.
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virtual const MCSection *
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getSpecialCasedSectionGlobals(const GlobalValue *GV, Mangler *Mang,
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SectionKind Kind) const {
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return 0;
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}
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/// getTTypeGlobalReference - Return an MCExpr to use for a reference
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/// to the specified global variable from exception handling information.
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///
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virtual const MCExpr *
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getTTypeGlobalReference(const GlobalValue *GV, Mangler *Mang,
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MachineModuleInfo *MMI, unsigned Encoding,
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MCStreamer &Streamer) const;
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// getCFIPersonalitySymbol - The symbol that gets passed to .cfi_personality.
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virtual MCSymbol *
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getCFIPersonalitySymbol(const GlobalValue *GV, Mangler *Mang,
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MachineModuleInfo *MMI) const;
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///
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const MCExpr *
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getTTypeReference(const MCSymbolRefExpr *Sym, unsigned Encoding,
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MCStreamer &Streamer) const;
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virtual const MCSection *
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getStaticCtorSection(unsigned Priority = 65535) const {
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(void)Priority;
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return StaticCtorSection;
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}
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virtual const MCSection *
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getStaticDtorSection(unsigned Priority = 65535) const {
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(void)Priority;
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return StaticDtorSection;
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}
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protected:
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virtual const MCSection *
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SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
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Mangler *Mang, const TargetMachine &TM) const;
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};
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} // end namespace llvm
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#endif
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