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94c981273e
COFF lacks a feature that other object file formats support: mergeable sections. To work around this, MSVC sticks constant pool entries in special COMDAT sections so that each constant is in it's own section. This permits unused constants to be dropped and it also allows duplicate constants in different translation units to get merged together. This fixes PR20262. Differential Revision: http://reviews.llvm.org/D4482 llvm-svn: 213006
106 lines
3.6 KiB
C++
106 lines
3.6 KiB
C++
//===-- NVPTXTargetObjectFile.h - NVPTX 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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#ifndef LLVM_TARGET_NVPTX_TARGETOBJECTFILE_H
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#define LLVM_TARGET_NVPTX_TARGETOBJECTFILE_H
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#include "NVPTXSection.h"
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#include "llvm/Target/TargetLoweringObjectFile.h"
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#include <string>
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namespace llvm {
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class GlobalVariable;
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class Module;
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class NVPTXTargetObjectFile : public TargetLoweringObjectFile {
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public:
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NVPTXTargetObjectFile() {
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TextSection = nullptr;
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DataSection = nullptr;
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BSSSection = nullptr;
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ReadOnlySection = nullptr;
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StaticCtorSection = nullptr;
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StaticDtorSection = nullptr;
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LSDASection = nullptr;
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EHFrameSection = nullptr;
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DwarfAbbrevSection = nullptr;
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DwarfInfoSection = nullptr;
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DwarfLineSection = nullptr;
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DwarfFrameSection = nullptr;
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DwarfPubTypesSection = nullptr;
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DwarfDebugInlineSection = nullptr;
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DwarfStrSection = nullptr;
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DwarfLocSection = nullptr;
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DwarfARangesSection = nullptr;
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DwarfRangesSection = nullptr;
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DwarfMacroInfoSection = nullptr;
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}
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virtual ~NVPTXTargetObjectFile();
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void Initialize(MCContext &ctx, const TargetMachine &TM) override {
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TargetLoweringObjectFile::Initialize(ctx, TM);
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TextSection = new NVPTXSection(MCSection::SV_ELF, SectionKind::getText());
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DataSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getDataRel());
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BSSSection = new NVPTXSection(MCSection::SV_ELF, SectionKind::getBSS());
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ReadOnlySection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getReadOnly());
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StaticCtorSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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StaticDtorSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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LSDASection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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EHFrameSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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DwarfAbbrevSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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DwarfInfoSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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DwarfLineSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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DwarfFrameSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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DwarfPubTypesSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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DwarfDebugInlineSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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DwarfStrSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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DwarfLocSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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DwarfARangesSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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DwarfRangesSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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DwarfMacroInfoSection =
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new NVPTXSection(MCSection::SV_ELF, SectionKind::getMetadata());
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}
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const MCSection *getSectionForConstant(SectionKind Kind,
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const Constant *C) const override {
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return ReadOnlySection;
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}
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const MCSection *getExplicitSectionGlobal(const GlobalValue *GV,
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SectionKind Kind, Mangler &Mang,
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const TargetMachine &TM) const override {
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return DataSection;
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}
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};
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} // end namespace llvm
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#endif
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