diff options
Diffstat (limited to 'include/llvm/MC/MCStreamer.h')
| -rw-r--r-- | include/llvm/MC/MCStreamer.h | 60 |
1 files changed, 50 insertions, 10 deletions
diff --git a/include/llvm/MC/MCStreamer.h b/include/llvm/MC/MCStreamer.h index 91593b9..05a33c5 100644 --- a/include/llvm/MC/MCStreamer.h +++ b/include/llvm/MC/MCStreamer.h @@ -14,12 +14,12 @@ #ifndef LLVM_MC_MCSTREAMER_H #define LLVM_MC_MCSTREAMER_H -#include "llvm/Support/DataTypes.h" +#include "llvm/ADT/ArrayRef.h" +#include "llvm/ADT/SmallVector.h" #include "llvm/MC/MCDirectives.h" #include "llvm/MC/MCDwarf.h" #include "llvm/MC/MCWin64EH.h" -#include "llvm/ADT/ArrayRef.h" -#include "llvm/ADT/SmallVector.h" +#include "llvm/Support/DataTypes.h" namespace llvm { class MCAsmBackend; @@ -55,6 +55,7 @@ namespace llvm { std::vector<MCDwarfFrameInfo> FrameInfos; MCDwarfFrameInfo *getCurrentFrameInfo(); + MCSymbol *EmitCFICommon(); void EnsureValidFrame(); std::vector<MCWin64EHUnwindInfo *> W64UnwindInfos; @@ -69,6 +70,8 @@ namespace llvm { SmallVector<std::pair<const MCSection *, const MCSection *>, 4> SectionStack; + bool AutoInitSections; + protected: MCStreamer(MCContext &Ctx); @@ -89,6 +92,10 @@ namespace llvm { public: virtual ~MCStreamer(); + /// State management + /// + virtual void reset(); + MCContext &getContext() const { return Context; } unsigned getNumFrameInfos() { @@ -213,6 +220,17 @@ namespace llvm { SectionStack.back().first = Section; } + /// Initialize the streamer. + void InitStreamer() { + if (AutoInitSections) + InitSections(); + } + + /// Tell this MCStreamer to call InitSections upon initialization. + void setAutoInitSections(bool AutoInitSections) { + this->AutoInitSections = AutoInitSections; + } + /// InitSections - Create the default sections and set the initial one. virtual void InitSections() = 0; @@ -226,6 +244,8 @@ namespace llvm { /// used in an assignment. virtual void EmitLabel(MCSymbol *Symbol); + virtual void EmitDebugLabel(MCSymbol *Symbol); + virtual void EmitEHSymAttributes(const MCSymbol *Symbol, MCSymbol *EHSymbol); @@ -342,7 +362,7 @@ namespace llvm { /// @name Generating Data /// @{ - /// EmitBytes - Emit the bytes in \arg Data into the output. + /// EmitBytes - Emit the bytes in \p Data into the output. /// /// This is used to implement assembler directives such as .byte, .ascii, /// etc. @@ -417,7 +437,6 @@ namespace llvm { EmitFill(NumBytes, 0, AddrSpace); } - /// EmitValueToAlignment - Emit some number of copies of @p Value until /// the byte alignment @p ByteAlignment is reached. /// @@ -515,6 +534,8 @@ namespace llvm { virtual void EmitCFIAdjustCfaOffset(int64_t Adjustment); virtual void EmitCFIEscape(StringRef Values); virtual void EmitCFISignalFrame(); + virtual void EmitCFIUndefined(int64_t Register); + virtual void EmitCFIRegister(int64_t Register1, int64_t Register2); virtual void EmitWin64EHStartProc(const MCSymbol *Symbol); virtual void EmitWin64EHEndProc(); @@ -535,6 +556,20 @@ namespace llvm { /// section. virtual void EmitInstruction(const MCInst &Inst) = 0; + /// \brief Set the bundle alignment mode from now on in the section. + /// The argument is the power of 2 to which the alignment is set. The + /// value 0 means turn the bundle alignment off. + virtual void EmitBundleAlignMode(unsigned AlignPow2) = 0; + + /// \brief The following instructions are a bundle-locked group. + /// + /// \param AlignToEnd - If true, the bundle-locked group will be aligned to + /// the end of a bundle. + virtual void EmitBundleLock(bool AlignToEnd) = 0; + + /// \brief Ends a bundle-locked group. + virtual void EmitBundleUnlock() = 0; + /// EmitRawText - If this file is backed by a assembly streamer, this dumps /// the specified string in the output .s file. This capability is /// indicated by the hasRawTextSupport() predicate. By default this aborts. @@ -554,6 +589,11 @@ namespace llvm { virtual void EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool isVector); + /// PPC-related methods. + /// FIXME: Eventually replace it with some "target MC streamer" and move + /// these methods there. + virtual void EmitTCEntry(const MCSymbol &S); + /// FinishImpl - Streamer specific finalization. virtual void FinishImpl() = 0; /// Finish - Finish emission of machine code. @@ -573,11 +613,11 @@ namespace llvm { /// InstPrint. /// /// \param CE - If given, a code emitter to use to show the instruction - /// encoding inline with the assembly. This method takes ownership of \arg CE. + /// encoding inline with the assembly. This method takes ownership of \p CE. /// /// \param TAB - If given, a target asm backend to use to show the fixup /// information in conjunction with encoding information. This method takes - /// ownership of \arg TAB. + /// ownership of \p TAB. /// /// \param ShowInst - Whether to show the MCInst representation inline with /// the assembly. @@ -594,7 +634,7 @@ namespace llvm { /// createMachOStreamer - Create a machine code streamer which will generate /// Mach-O format object files. /// - /// Takes ownership of \arg TAB and \arg CE. + /// Takes ownership of \p TAB and \p CE. MCStreamer *createMachOStreamer(MCContext &Ctx, MCAsmBackend &TAB, raw_ostream &OS, MCCodeEmitter *CE, bool RelaxAll = false); @@ -602,7 +642,7 @@ namespace llvm { /// createWinCOFFStreamer - Create a machine code streamer which will /// generate Microsoft COFF format object files. /// - /// Takes ownership of \arg TAB and \arg CE. + /// Takes ownership of \p TAB and \p CE. MCStreamer *createWinCOFFStreamer(MCContext &Ctx, MCAsmBackend &TAB, MCCodeEmitter &CE, raw_ostream &OS, @@ -617,7 +657,7 @@ namespace llvm { /// createPureStreamer - Create a machine code streamer which will generate /// "pure" MC object files, for use with MC-JIT and testing tools. /// - /// Takes ownership of \arg TAB and \arg CE. + /// Takes ownership of \p TAB and \p CE. MCStreamer *createPureStreamer(MCContext &Ctx, MCAsmBackend &TAB, raw_ostream &OS, MCCodeEmitter *CE); |