//===----------------------------------------------------------------------===//
#include "llvm/MC/MCStreamer.h"
-#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Twine.h"
formatted_raw_ostream &OS;
const MCAsmInfo *MAI;
private:
- OwningPtr<MCInstPrinter> InstPrinter;
- OwningPtr<MCCodeEmitter> Emitter;
- OwningPtr<MCAsmBackend> AsmBackend;
+ std::unique_ptr<MCInstPrinter> InstPrinter;
+ std::unique_ptr<MCCodeEmitter> Emitter;
+ std::unique_ptr<MCAsmBackend> AsmBackend;
SmallString<128> CommentToEmit;
raw_svector_ostream CommentStream;
bool needsSet(const MCExpr *Value);
void EmitRegisterName(int64_t Register);
- virtual void EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame);
- virtual void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame);
+ void EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) override;
+ void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) override;
public:
MCAsmStreamer(MCContext &Context, formatted_raw_ostream &os,
/// isVerboseAsm - Return true if this streamer supports verbose assembly at
/// all.
- virtual bool isVerboseAsm() const { return IsVerboseAsm; }
+ bool isVerboseAsm() const override { return IsVerboseAsm; }
/// hasRawTextSupport - We support EmitRawText.
- virtual bool hasRawTextSupport() const { return true; }
+ bool hasRawTextSupport() const override { return true; }
/// AddComment - Add a comment that can be emitted to the generated .s
/// file if applicable as a QoI issue to make the output of the compiler
/// more readable. This only affects the MCAsmStreamer, and only when
/// verbose assembly output is enabled.
- virtual void AddComment(const Twine &T);
+ void AddComment(const Twine &T) override;
/// AddEncodingComment - Add a comment showing the encoding of an instruction.
- virtual void AddEncodingComment(const MCInst &Inst, const MCSubtargetInfo &);
+ void AddEncodingComment(const MCInst &Inst, const MCSubtargetInfo &);
/// GetCommentOS - Return a raw_ostream that comments can be written to.
/// Unlike AddComment, you are required to terminate comments with \n if you
/// use this method.
- virtual raw_ostream &GetCommentOS() {
+ raw_ostream &GetCommentOS() override {
if (!IsVerboseAsm)
return nulls(); // Discard comments unless in verbose asm mode.
return CommentStream;
}
- void emitRawComment(const Twine &T, bool TabPrefix = true) LLVM_OVERRIDE;
+ void emitRawComment(const Twine &T, bool TabPrefix = true) override;
/// AddBlankLine - Emit a blank line to a .s file to pretty it up.
- virtual void AddBlankLine() {
+ void AddBlankLine() override {
EmitEOL();
}
/// @name MCStreamer Interface
/// @{
- virtual void ChangeSection(const MCSection *Section,
- const MCExpr *Subsection);
-
- virtual void InitSections(bool Force) {
- if (Force)
- SwitchSection(getContext().getObjectFileInfo()->getTextSection());
- }
-
- virtual void EmitLabel(MCSymbol *Symbol);
- virtual void EmitDebugLabel(MCSymbol *Symbol);
-
- virtual void EmitEHSymAttributes(const MCSymbol *Symbol,
- MCSymbol *EHSymbol);
- virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
- virtual void EmitLinkerOptions(ArrayRef<std::string> Options);
- virtual void EmitDataRegion(MCDataRegionType Kind);
- virtual void EmitThumbFunc(MCSymbol *Func);
-
- virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value);
- virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol);
- virtual void EmitDwarfAdvanceLineAddr(int64_t LineDelta,
- const MCSymbol *LastLabel,
- const MCSymbol *Label,
- unsigned PointerSize);
- virtual void EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
- const MCSymbol *Label);
-
- virtual bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
-
- virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue);
- virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol);
- virtual void EmitCOFFSymbolStorageClass(int StorageClass);
- virtual void EmitCOFFSymbolType(int Type);
- virtual void EndCOFFSymbolDef();
- virtual void EmitCOFFSectionIndex(MCSymbol const *Symbol);
- virtual void EmitCOFFSecRel32(MCSymbol const *Symbol);
- virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value);
- virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
- unsigned ByteAlignment);
+ void ChangeSection(const MCSection *Section,
+ const MCExpr *Subsection) override;
+
+ void EmitLabel(MCSymbol *Symbol) override;
+ void EmitDebugLabel(MCSymbol *Symbol) override;
+
+ void EmitEHSymAttributes(const MCSymbol *Symbol, MCSymbol *EHSymbol) override;
+ void EmitAssemblerFlag(MCAssemblerFlag Flag) override;
+ void EmitLinkerOptions(ArrayRef<std::string> Options) override;
+ void EmitDataRegion(MCDataRegionType Kind) override;
+ void EmitVersionMin(MCVersionMinType Kind, unsigned Major, unsigned Minor,
+ unsigned Update) override;
+ void EmitThumbFunc(MCSymbol *Func) override;
+
+ void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) override;
+ void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) override;
+ void EmitDwarfAdvanceLineAddr(int64_t LineDelta, const MCSymbol *LastLabel,
+ const MCSymbol *Label,
+ unsigned PointerSize) override;
+ void EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
+ const MCSymbol *Label) override;
+
+ bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override;
+
+ void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override;
+ void BeginCOFFSymbolDef(const MCSymbol *Symbol) override;
+ void EmitCOFFSymbolStorageClass(int StorageClass) override;
+ void EmitCOFFSymbolType(int Type) override;
+ void EndCOFFSymbolDef() override;
+ void EmitCOFFSectionIndex(MCSymbol const *Symbol) override;
+ void EmitCOFFSecRel32(MCSymbol const *Symbol) override;
+ void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) override;
+ void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment) override;
/// EmitLocalCommonSymbol - Emit a local common (.lcomm) symbol.
///
/// @param Symbol - The common symbol to emit.
/// @param Size - The size of the common symbol.
/// @param ByteAlignment - The alignment of the common symbol in bytes.
- virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
- unsigned ByteAlignment);
-
- virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
- uint64_t Size = 0, unsigned ByteAlignment = 0);
-
- virtual void EmitTBSSSymbol (const MCSection *Section, MCSymbol *Symbol,
- uint64_t Size, unsigned ByteAlignment = 0);
-
- virtual void EmitBytes(StringRef Data);
-
- virtual void EmitValueImpl(const MCExpr *Value, unsigned Size);
- virtual void EmitIntValue(uint64_t Value, unsigned Size);
-
- virtual void EmitULEB128Value(const MCExpr *Value);
-
- virtual void EmitSLEB128Value(const MCExpr *Value);
-
- virtual void EmitGPRel64Value(const MCExpr *Value);
-
- virtual void EmitGPRel32Value(const MCExpr *Value);
-
-
- virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue);
-
- virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
- unsigned ValueSize = 1,
- unsigned MaxBytesToEmit = 0);
-
- virtual void EmitCodeAlignment(unsigned ByteAlignment,
- unsigned MaxBytesToEmit = 0);
-
- virtual bool EmitValueToOffset(const MCExpr *Offset,
- unsigned char Value = 0);
-
- virtual void EmitFileDirective(StringRef Filename);
- virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
- StringRef Filename, unsigned CUID = 0);
- virtual void EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
- unsigned Column, unsigned Flags,
- unsigned Isa, unsigned Discriminator,
- StringRef FileName);
-
- virtual void EmitIdent(StringRef IdentString);
- virtual void EmitCFISections(bool EH, bool Debug);
- virtual void EmitCFIDefCfa(int64_t Register, int64_t Offset);
- virtual void EmitCFIDefCfaOffset(int64_t Offset);
- virtual void EmitCFIDefCfaRegister(int64_t Register);
- virtual void EmitCFIOffset(int64_t Register, int64_t Offset);
- virtual void EmitCFIPersonality(const MCSymbol *Sym, unsigned Encoding);
- virtual void EmitCFILsda(const MCSymbol *Sym, unsigned Encoding);
- virtual void EmitCFIRememberState();
- virtual void EmitCFIRestoreState();
- virtual void EmitCFISameValue(int64_t Register);
- virtual void EmitCFIRelOffset(int64_t Register, int64_t Offset);
- virtual void EmitCFIAdjustCfaOffset(int64_t Adjustment);
- virtual void EmitCFISignalFrame();
- virtual void EmitCFIUndefined(int64_t Register);
- virtual void EmitCFIRegister(int64_t Register1, int64_t Register2);
- virtual void EmitCFIWindowSave();
-
- virtual void EmitWin64EHStartProc(const MCSymbol *Symbol);
- virtual void EmitWin64EHEndProc();
- virtual void EmitWin64EHStartChained();
- virtual void EmitWin64EHEndChained();
- virtual void EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
- bool Except);
- virtual void EmitWin64EHHandlerData();
- virtual void EmitWin64EHPushReg(unsigned Register);
- virtual void EmitWin64EHSetFrame(unsigned Register, unsigned Offset);
- virtual void EmitWin64EHAllocStack(unsigned Size);
- virtual void EmitWin64EHSaveReg(unsigned Register, unsigned Offset);
- virtual void EmitWin64EHSaveXMM(unsigned Register, unsigned Offset);
- virtual void EmitWin64EHPushFrame(bool Code);
- virtual void EmitWin64EHEndProlog();
-
- virtual void EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI);
-
- virtual void EmitBundleAlignMode(unsigned AlignPow2);
- virtual void EmitBundleLock(bool AlignToEnd);
- virtual void EmitBundleUnlock();
+ void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment) override;
+
+ void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
+ uint64_t Size = 0, unsigned ByteAlignment = 0) override;
+
+ void EmitTBSSSymbol (const MCSection *Section, MCSymbol *Symbol,
+ uint64_t Size, unsigned ByteAlignment = 0) override;
+
+ void EmitBytes(StringRef Data) override;
+
+ void EmitValueImpl(const MCExpr *Value, unsigned Size) override;
+ void EmitIntValue(uint64_t Value, unsigned Size) override;
+
+ void EmitULEB128Value(const MCExpr *Value) override;
+
+ void EmitSLEB128Value(const MCExpr *Value) override;
+
+ void EmitGPRel64Value(const MCExpr *Value) override;
+
+ void EmitGPRel32Value(const MCExpr *Value) override;
+
+
+ void EmitFill(uint64_t NumBytes, uint8_t FillValue) override;
+
+ void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
+ unsigned ValueSize = 1,
+ unsigned MaxBytesToEmit = 0) override;
+
+ void EmitCodeAlignment(unsigned ByteAlignment,
+ unsigned MaxBytesToEmit = 0) override;
+
+ bool EmitValueToOffset(const MCExpr *Offset,
+ unsigned char Value = 0) override;
+
+ void EmitFileDirective(StringRef Filename) override;
+ unsigned EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
+ StringRef Filename,
+ unsigned CUID = 0) override;
+ void EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
+ unsigned Column, unsigned Flags,
+ unsigned Isa, unsigned Discriminator,
+ StringRef FileName) override;
+
+ void EmitIdent(StringRef IdentString) override;
+ void EmitCFISections(bool EH, bool Debug) override;
+ void EmitCFIDefCfa(int64_t Register, int64_t Offset) override;
+ void EmitCFIDefCfaOffset(int64_t Offset) override;
+ void EmitCFIDefCfaRegister(int64_t Register) override;
+ void EmitCFIOffset(int64_t Register, int64_t Offset) override;
+ void EmitCFIPersonality(const MCSymbol *Sym, unsigned Encoding) override;
+ void EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) override;
+ void EmitCFIRememberState() override;
+ void EmitCFIRestoreState() override;
+ void EmitCFISameValue(int64_t Register) override;
+ void EmitCFIRelOffset(int64_t Register, int64_t Offset) override;
+ void EmitCFIAdjustCfaOffset(int64_t Adjustment) override;
+ void EmitCFISignalFrame() override;
+ void EmitCFIUndefined(int64_t Register) override;
+ void EmitCFIRegister(int64_t Register1, int64_t Register2) override;
+ void EmitCFIWindowSave() override;
+
+ void EmitWin64EHStartProc(const MCSymbol *Symbol) override;
+ void EmitWin64EHEndProc() override;
+ void EmitWin64EHStartChained() override;
+ void EmitWin64EHEndChained() override;
+ void EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
+ bool Except) override;
+ void EmitWin64EHHandlerData() override;
+ void EmitWin64EHPushReg(unsigned Register) override;
+ void EmitWin64EHSetFrame(unsigned Register, unsigned Offset) override;
+ void EmitWin64EHAllocStack(unsigned Size) override;
+ void EmitWin64EHSaveReg(unsigned Register, unsigned Offset) override;
+ void EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) override;
+ void EmitWin64EHPushFrame(bool Code) override;
+ void EmitWin64EHEndProlog() override;
+
+ void EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI) override;
+
+ void EmitBundleAlignMode(unsigned AlignPow2) override;
+ void EmitBundleLock(bool AlignToEnd) override;
+ void EmitBundleUnlock() override;
/// EmitRawText - If this file is backed by an assembly streamer, this dumps
/// the specified string in the output .s file. This capability is
/// indicated by the hasRawTextSupport() predicate.
- virtual void EmitRawTextImpl(StringRef String);
+ void EmitRawTextImpl(StringRef String) override;
- virtual void FinishImpl();
+ void FinishImpl() override;
};
} // end anonymous namespace.
EmitEOL();
}
+void MCAsmStreamer::EmitVersionMin(MCVersionMinType Kind, unsigned Major,
+ unsigned Minor, unsigned Update) {
+ switch (Kind) {
+ case MCVM_IOSVersionMin: OS << "\t.ios_version_min"; break;
+ case MCVM_OSXVersionMin: OS << "\t.macosx_version_min"; break;
+ }
+ OS << " " << Major << ", " << Minor;
+ if (Update)
+ OS << ", " << Update;
+ EmitEOL();
+}
+
void MCAsmStreamer::EmitThumbFunc(MCSymbol *Func) {
// This needs to emit to a temporary string to get properly quoted
// MCSymbols when they have spaces in them.
OS << *Symbol << " = " << *Value;
EmitEOL();
- // FIXME: Lift context changes into super class.
- Symbol->setVariableValue(Value);
+ MCStreamer::EmitAssignment(Symbol, Value);
}
void MCAsmStreamer::EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) {
EmitEOL();
}
-bool MCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
- StringRef Filename, unsigned CUID) {
+unsigned MCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo,
+ StringRef Directory,
+ StringRef Filename,
+ unsigned CUID) {
+ assert(CUID == 0);
+
+ MCDwarfLineTable &Table = getContext().getMCDwarfLineTable(CUID);
+ unsigned NumFiles = Table.getMCDwarfFiles().size();
+ FileNo = Table.getFile(Directory, Filename, FileNo);
+ if (FileNo == 0)
+ return 0;
+ if (NumFiles == Table.getMCDwarfFiles().size())
+ return FileNo;
+
+ SmallString<128> FullPathName;
+
if (!UseDwarfDirectory && !Directory.empty()) {
if (sys::path::is_absolute(Filename))
- return EmitDwarfFileDirective(FileNo, "", Filename, CUID);
-
- SmallString<128> FullPathName = Directory;
- sys::path::append(FullPathName, Filename);
- return EmitDwarfFileDirective(FileNo, "", FullPathName, CUID);
+ Directory = "";
+ else {
+ FullPathName = Directory;
+ sys::path::append(FullPathName, Filename);
+ Directory = "";
+ Filename = FullPathName;
+ }
}
OS << "\t.file\t" << FileNo << ' ';
}
PrintQuotedString(Filename, OS);
EmitEOL();
- // All .file will belong to a single CUID.
- CUID = 0;
- return this->MCStreamer::EmitDwarfFileDirective(FileNo, Directory, Filename,
- CUID);
+ return FileNo;
}
void MCAsmStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
}
if (Isa)
- OS << "isa " << Isa;
+ OS << " isa " << Isa;
if (Discriminator)
- OS << "discriminator " << Discriminator;
+ OS << " discriminator " << Discriminator;
if (IsVerboseAsm) {
OS.PadToColumn(MAI->getCommentColumn());