Coverage Report

Created: 2018-07-19 03:59

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/include/llvm/MC/MCELFStreamer.h
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//===- MCELFStreamer.h - MCStreamer ELF Object File Interface ---*- 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_MC_MCELFSTREAMER_H
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#define LLVM_MC_MCELFSTREAMER_H
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/MC/MCDirectives.h"
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#include "llvm/MC/MCObjectStreamer.h"
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namespace llvm {
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class MCAsmBackend;
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class MCCodeEmitter;
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class MCExpr;
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class MCInst;
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class MCELFStreamer : public MCObjectStreamer {
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public:
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  MCELFStreamer(MCContext &Context, std::unique_ptr<MCAsmBackend> TAB,
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                std::unique_ptr<MCObjectWriter> OW,
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                std::unique_ptr<MCCodeEmitter> Emitter);
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  ~MCELFStreamer() override = default;
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  /// state management
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  void reset() override {
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    SeenIdent = false;
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    BundleGroups.clear();
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    MCObjectStreamer::reset();
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  }
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  /// \name MCStreamer Interface
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  /// @{
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  void InitSections(bool NoExecStack) override;
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  void ChangeSection(MCSection *Section, const MCExpr *Subsection) override;
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  void EmitLabel(MCSymbol *Symbol, SMLoc Loc = SMLoc()) override;
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  void EmitLabel(MCSymbol *Symbol, SMLoc Loc, MCFragment *F) override;
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  void EmitAssemblerFlag(MCAssemblerFlag Flag) override;
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  void EmitThumbFunc(MCSymbol *Func) override;
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  void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) override;
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  bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override;
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  void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override;
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  void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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                        unsigned ByteAlignment) override;
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  void emitELFSize(MCSymbol *Symbol, const MCExpr *Value) override;
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  void emitELFSymverDirective(StringRef AliasName,
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                              const MCSymbol *Aliasee) override;
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  void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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                             unsigned ByteAlignment) override;
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  void EmitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr,
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                    uint64_t Size = 0, unsigned ByteAlignment = 0,
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                    SMLoc L = SMLoc()) override;
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  void EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
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                      unsigned ByteAlignment = 0) override;
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  void EmitValueImpl(const MCExpr *Value, unsigned Size,
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                     SMLoc Loc = SMLoc()) override;
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  void EmitIdent(StringRef IdentString) override;
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  void EmitValueToAlignment(unsigned, int64_t, unsigned, unsigned) override;
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  void emitCGProfileEntry(const MCSymbolRefExpr *From,
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                          const MCSymbolRefExpr *To, uint64_t Count) override;
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  void FinishImpl() override;
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  void EmitBundleAlignMode(unsigned AlignPow2) override;
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  void EmitBundleLock(bool AlignToEnd) override;
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  void EmitBundleUnlock() override;
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private:
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  bool isBundleLocked() const;
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  void EmitInstToFragment(const MCInst &Inst, const MCSubtargetInfo &) override;
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  void EmitInstToData(const MCInst &Inst, const MCSubtargetInfo &) override;
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  void fixSymbolsInTLSFixups(const MCExpr *expr);
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  void finalizeCGProfileEntry(const MCSymbolRefExpr *&S);
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  void finalizeCGProfile();
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  /// Merge the content of the fragment \p EF into the fragment \p DF.
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  void mergeFragment(MCDataFragment *, MCDataFragment *);
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  bool SeenIdent = false;
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  /// BundleGroups - The stack of fragments holding the bundle-locked
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  /// instructions.
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  SmallVector<MCDataFragment *, 4> BundleGroups;
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};
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MCELFStreamer *createARMELFStreamer(MCContext &Context,
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                                    std::unique_ptr<MCAsmBackend> TAB,
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                                    std::unique_ptr<MCObjectWriter> OW,
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                                    std::unique_ptr<MCCodeEmitter> Emitter,
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                                    bool RelaxAll, bool IsThumb);
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} // end namespace llvm
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#endif // LLVM_MC_MCELFSTREAMER_H