//===----------------------------------------------------------------------===//
#include "llvm/MC/MCStreamer.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/MC/MCAsmBackend.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MCAsmBackend.h"
-#include "llvm/ADT/OwningPtr.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/Twine.h"
+#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/MathExtras.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/PathV2.h"
+#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/Path.h"
#include <cctype>
using namespace llvm;
class MCAsmStreamer : public MCStreamer {
protected:
formatted_raw_ostream &OS;
- const MCAsmInfo &MAI;
+ 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;
unsigned IsVerboseAsm : 1;
unsigned ShowInst : 1;
- unsigned UseLoc : 1;
- unsigned UseCFI : 1;
unsigned UseDwarfDirectory : 1;
- enum EHSymbolFlags { EHGlobal = 1,
- EHWeakDefinition = 1 << 1,
- EHPrivateExtern = 1 << 2 };
- DenseMap<const MCSymbol*, unsigned> FlagMap;
-
- 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,
- bool isVerboseAsm, bool useLoc, bool useCFI,
- bool useDwarfDirectory,
+ bool isVerboseAsm, bool useDwarfDirectory,
MCInstPrinter *printer, MCCodeEmitter *emitter,
- MCAsmBackend *asmbackend,
- bool showInst)
- : MCStreamer(Context), OS(os), MAI(Context.getAsmInfo()),
- InstPrinter(printer), Emitter(emitter), AsmBackend(asmbackend),
- CommentStream(CommentToEmit), IsVerboseAsm(isVerboseAsm),
- ShowInst(showInst), UseLoc(useLoc), UseCFI(useCFI),
- UseDwarfDirectory(useDwarfDirectory) {
+ MCAsmBackend *asmbackend, bool showInst)
+ : MCStreamer(Context), OS(os), MAI(Context.getAsmInfo()),
+ InstPrinter(printer), Emitter(emitter), AsmBackend(asmbackend),
+ CommentStream(CommentToEmit), IsVerboseAsm(isVerboseAsm),
+ ShowInst(showInst), UseDwarfDirectory(useDwarfDirectory) {
if (InstPrinter && IsVerboseAsm)
InstPrinter->setCommentStream(CommentStream);
}
- ~MCAsmStreamer() {}
inline void EmitEOL() {
// If we don't have any comments, just emit a \n.
/// 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);
+ 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) 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);
-
- virtual void InitSections() {
- // FIXME, this is MachO specific, but the testsuite
- // expects this.
- SwitchSection(getContext().getMachOSection("__TEXT", "__text",
- MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
- 0, SectionKind::getText()));
- }
-
- virtual void EmitLabel(MCSymbol *Symbol);
- virtual void EmitEHSymAttributes(const MCSymbol *Symbol,
- MCSymbol *EHSymbol);
- virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
- 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 void 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 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 EmitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args) override;
+ void EmitLabel(MCSymbol *Symbol) 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;
+ 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 Size - 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,
- unsigned Size = 0, unsigned ByteAlignment = 0);
-
- virtual void EmitTBSSSymbol (const MCSection *Section, MCSymbol *Symbol,
- uint64_t Size, unsigned ByteAlignment = 0);
-
- virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
-
- virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace);
- virtual void EmitIntValue(uint64_t Value, unsigned Size,
- unsigned AddrSpace = 0);
-
- 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,
- unsigned AddrSpace);
-
- 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);
- virtual void EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
- unsigned Column, unsigned Flags,
- unsigned Isa, unsigned Discriminator,
- StringRef FileName);
-
- 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 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 EmitFnStart();
- virtual void EmitFnEnd();
- virtual void EmitCantUnwind();
- virtual void EmitPersonality(const MCSymbol *Personality);
- virtual void EmitHandlerData();
- virtual void EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset = 0);
- virtual void EmitPad(int64_t Offset);
- virtual void EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool);
-
-
- virtual void EmitInstruction(const MCInst &Inst);
+ /// @param ByteAlignment - The alignment of the common symbol in bytes.
+ void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment) override;
+
+ void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = nullptr,
+ 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,
+ const SMLoc &Loc = SMLoc()) 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;
+ MCSymbol *getDwarfLineTableSymbol(unsigned CUID) 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 EmitWinCFIStartProc(const MCSymbol *Symbol) override;
+ void EmitWinCFIEndProc() override;
+ void EmitWinCFIStartChained() override;
+ void EmitWinCFIEndChained() override;
+ void EmitWinCFIPushReg(unsigned Register) override;
+ void EmitWinCFISetFrame(unsigned Register, unsigned Offset) override;
+ void EmitWinCFIAllocStack(unsigned Size) override;
+ void EmitWinCFISaveReg(unsigned Register, unsigned Offset) override;
+ void EmitWinCFISaveXMM(unsigned Register, unsigned Offset) override;
+ void EmitWinCFIPushFrame(bool Code) override;
+ void EmitWinCFIEndProlog() override;
+
+ void EmitWinEHHandler(const MCSymbol *Sym, bool Unwind, bool Except) override;
+ void EmitWinEHHandlerData() 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 EmitRawText(StringRef String);
-
- virtual void FinishImpl();
+ void EmitRawTextImpl(StringRef String) override;
- /// @}
+ void FinishImpl() override;
};
} // end anonymous namespace.
}
CommentStream.flush();
- StringRef Comments = CommentToEmit.str();
+ StringRef Comments = CommentToEmit;
assert(Comments.back() == '\n' &&
"Comment array not newline terminated");
do {
// Emit a line of comments.
- OS.PadToColumn(MAI.getCommentColumn());
+ OS.PadToColumn(MAI->getCommentColumn());
size_t Position = Comments.find('\n');
- OS << MAI.getCommentString() << ' ' << Comments.substr(0, Position) << '\n';
+ OS << MAI->getCommentString() << ' ' << Comments.substr(0, Position) <<'\n';
Comments = Comments.substr(Position+1);
} while (!Comments.empty());
return Value & ((uint64_t) (int64_t) -1 >> (64 - Bytes * 8));
}
-void MCAsmStreamer::ChangeSection(const MCSection *Section) {
- assert(Section && "Cannot switch to a null section!");
- Section->PrintSwitchToSection(MAI, OS);
+void MCAsmStreamer::emitRawComment(const Twine &T, bool TabPrefix) {
+ if (TabPrefix)
+ OS << '\t';
+ OS << MAI->getCommentString() << T;
+ EmitEOL();
}
-void MCAsmStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
- MCSymbol *EHSymbol) {
- if (UseCFI)
- return;
-
- unsigned Flags = FlagMap.lookup(Symbol);
-
- if (Flags & EHGlobal)
- EmitSymbolAttribute(EHSymbol, MCSA_Global);
- if (Flags & EHWeakDefinition)
- EmitSymbolAttribute(EHSymbol, MCSA_WeakDefinition);
- if (Flags & EHPrivateExtern)
- EmitSymbolAttribute(EHSymbol, MCSA_PrivateExtern);
+void MCAsmStreamer::ChangeSection(const MCSection *Section,
+ const MCExpr *Subsection) {
+ assert(Section && "Cannot switch to a null section!");
+ Section->PrintSwitchToSection(*MAI, OS, Subsection);
}
void MCAsmStreamer::EmitLabel(MCSymbol *Symbol) {
assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
MCStreamer::EmitLabel(Symbol);
- OS << *Symbol << MAI.getLabelSuffix();
+ OS << *Symbol << MAI->getLabelSuffix();
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args) {
+ StringRef str = MCLOHIdToName(Kind);
+
+#ifndef NDEBUG
+ int NbArgs = MCLOHIdToNbArgs(Kind);
+ assert(NbArgs != -1 && ((size_t)NbArgs) == Args.size() && "Malformed LOH!");
+ assert(str != "" && "Invalid LOH name");
+#endif
+
+ OS << "\t" << MCLOHDirectiveName() << " " << str << "\t";
+ bool IsFirst = true;
+ for (MCLOHArgs::const_iterator It = Args.begin(), EndIt = Args.end();
+ It != EndIt; ++It) {
+ if (!IsFirst)
+ OS << ", ";
+ IsFirst = false;
+ OS << **It;
+ }
EmitEOL();
}
switch (Flag) {
case MCAF_SyntaxUnified: OS << "\t.syntax unified"; break;
case MCAF_SubsectionsViaSymbols: OS << ".subsections_via_symbols"; break;
- case MCAF_Code16: OS << '\t'<< MAI.getCode16Directive(); break;
- case MCAF_Code32: OS << '\t'<< MAI.getCode32Directive(); break;
- case MCAF_Code64: OS << '\t'<< MAI.getCode64Directive(); break;
+ case MCAF_Code16: OS << '\t'<< MAI->getCode16Directive();break;
+ case MCAF_Code32: OS << '\t'<< MAI->getCode32Directive();break;
+ case MCAF_Code64: OS << '\t'<< MAI->getCode64Directive();break;
}
EmitEOL();
}
+void MCAsmStreamer::EmitLinkerOptions(ArrayRef<std::string> Options) {
+ assert(!Options.empty() && "At least one option is required!");
+ OS << "\t.linker_option \"" << Options[0] << '"';
+ for (ArrayRef<std::string>::iterator it = Options.begin() + 1,
+ ie = Options.end(); it != ie; ++it) {
+ OS << ", " << '"' << *it << '"';
+ }
+ OS << "\n";
+}
+
void MCAsmStreamer::EmitDataRegion(MCDataRegionType Kind) {
- MCContext &Ctx = getContext();
- const MCAsmInfo &MAI = Ctx.getAsmInfo();
- if (!MAI.doesSupportDataRegionDirectives())
+ if (!MAI->doesSupportDataRegionDirectives())
return;
switch (Kind) {
case MCDR_DataRegion: OS << "\t.data_region"; break;
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 << "\t.thumb_func";
// Only Mach-O hasSubsectionsViaSymbols()
- if (MAI.hasSubsectionsViaSymbols())
+ if (MAI->hasSubsectionsViaSymbols())
OS << '\t' << *Func;
EmitEOL();
}
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();
}
-void MCAsmStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
- const MCSymbol *LastLabel,
- const MCSymbol *Label,
- unsigned PointerSize) {
- EmitDwarfSetLineAddr(LineDelta, Label, PointerSize);
-}
-
-void MCAsmStreamer::EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
- const MCSymbol *Label) {
- EmitIntValue(dwarf::DW_CFA_advance_loc4, 1);
- const MCExpr *AddrDelta = BuildSymbolDiff(getContext(), Label, LastLabel);
- AddrDelta = ForceExpAbs(AddrDelta);
- EmitValue(AddrDelta, 4);
-}
-
-
-void MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
+bool MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
MCSymbolAttr Attribute) {
switch (Attribute) {
case MCSA_Invalid: llvm_unreachable("Invalid symbol attribute");
case MCSA_ELF_TypeCommon: /// .type _foo, STT_COMMON # aka @common
case MCSA_ELF_TypeNoType: /// .type _foo, STT_NOTYPE # aka @notype
case MCSA_ELF_TypeGnuUniqueObject: /// .type _foo, @gnu_unique_object
- assert(MAI.hasDotTypeDotSizeDirective() && "Symbol Attr not supported");
+ if (!MAI->hasDotTypeDotSizeDirective())
+ return false; // Symbol attribute not supported
OS << "\t.type\t" << *Symbol << ','
- << ((MAI.getCommentString()[0] != '@') ? '@' : '%');
+ << ((MAI->getCommentString()[0] != '@') ? '@' : '%');
switch (Attribute) {
- default: llvm_unreachable("Unknown ELF .type");
+ default: return false;
case MCSA_ELF_TypeFunction: OS << "function"; break;
case MCSA_ELF_TypeIndFunction: OS << "gnu_indirect_function"; break;
case MCSA_ELF_TypeObject: OS << "object"; break;
case MCSA_ELF_TypeGnuUniqueObject: OS << "gnu_unique_object"; break;
}
EmitEOL();
- return;
+ return true;
case MCSA_Global: // .globl/.global
- OS << MAI.getGlobalDirective();
- FlagMap[Symbol] |= EHGlobal;
+ OS << MAI->getGlobalDirective();
break;
case MCSA_Hidden: OS << "\t.hidden\t"; break;
case MCSA_IndirectSymbol: OS << "\t.indirect_symbol\t"; break;
case MCSA_Internal: OS << "\t.internal\t"; break;
case MCSA_LazyReference: OS << "\t.lazy_reference\t"; break;
case MCSA_Local: OS << "\t.local\t"; break;
- case MCSA_NoDeadStrip: OS << "\t.no_dead_strip\t"; break;
+ case MCSA_NoDeadStrip:
+ if (!MAI->hasNoDeadStrip())
+ return false;
+ OS << "\t.no_dead_strip\t";
+ break;
case MCSA_SymbolResolver: OS << "\t.symbol_resolver\t"; break;
case MCSA_PrivateExtern:
OS << "\t.private_extern\t";
- FlagMap[Symbol] |= EHPrivateExtern;
break;
case MCSA_Protected: OS << "\t.protected\t"; break;
case MCSA_Reference: OS << "\t.reference\t"; break;
- case MCSA_Weak: OS << "\t.weak\t"; break;
+ case MCSA_Weak: OS << MAI->getWeakDirective(); break;
case MCSA_WeakDefinition:
OS << "\t.weak_definition\t";
- FlagMap[Symbol] |= EHWeakDefinition;
break;
// .weak_reference
- case MCSA_WeakReference: OS << MAI.getWeakRefDirective(); break;
+ case MCSA_WeakReference: OS << MAI->getWeakRefDirective(); break;
case MCSA_WeakDefAutoPrivate: OS << "\t.weak_def_can_be_hidden\t"; break;
}
OS << *Symbol;
EmitEOL();
+
+ return true;
}
void MCAsmStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
EmitEOL();
}
+void MCAsmStreamer::EmitCOFFSectionIndex(MCSymbol const *Symbol) {
+ OS << "\t.secidx\t" << *Symbol;
+ EmitEOL();
+}
+
void MCAsmStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
- OS << "\t.secrel32\t" << *Symbol << '\n';
+ OS << "\t.secrel32\t" << *Symbol;
EmitEOL();
}
void MCAsmStreamer::EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
- assert(MAI.hasDotTypeDotSizeDirective());
+ assert(MAI->hasDotTypeDotSizeDirective());
OS << "\t.size\t" << *Symbol << ", " << *Value << '\n';
}
void MCAsmStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment) {
+ // Common symbols do not belong to any actual section.
+ AssignSection(Symbol, nullptr);
+
OS << "\t.comm\t" << *Symbol << ',' << Size;
if (ByteAlignment != 0) {
- if (MAI.getCOMMDirectiveAlignmentIsInBytes())
+ if (MAI->getCOMMDirectiveAlignmentIsInBytes())
OS << ',' << ByteAlignment;
else
OS << ',' << Log2_32(ByteAlignment);
/// @param Size - The size of the common symbol.
void MCAsmStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlign) {
- assert(MAI.getLCOMMDirectiveType() != LCOMM::None &&
- "Doesn't have .lcomm, can't emit it!");
+ // Common symbols do not belong to any actual section.
+ AssignSection(Symbol, nullptr);
+
OS << "\t.lcomm\t" << *Symbol << ',' << Size;
if (ByteAlign > 1) {
- assert(MAI.getLCOMMDirectiveType() == LCOMM::ByteAlignment &&
- "Alignment not supported on .lcomm!");
- OS << ',' << ByteAlign;
+ switch (MAI->getLCOMMDirectiveAlignmentType()) {
+ case LCOMM::NoAlignment:
+ llvm_unreachable("alignment not supported on .lcomm!");
+ case LCOMM::ByteAlignment:
+ OS << ',' << ByteAlign;
+ break;
+ case LCOMM::Log2Alignment:
+ assert(isPowerOf2_32(ByteAlign) && "alignment must be a power of 2");
+ OS << ',' << Log2_32(ByteAlign);
+ break;
+ }
}
EmitEOL();
}
void MCAsmStreamer::EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
- unsigned Size, unsigned ByteAlignment) {
+ uint64_t Size, unsigned ByteAlignment) {
+ if (Symbol)
+ AssignSection(Symbol, Section);
+
// Note: a .zerofill directive does not switch sections.
OS << ".zerofill ";
const MCSectionMachO *MOSection = ((const MCSectionMachO*)Section);
OS << MOSection->getSegmentName() << "," << MOSection->getSectionName();
- if (Symbol != NULL) {
+ if (Symbol) {
OS << ',' << *Symbol << ',' << Size;
if (ByteAlignment != 0)
OS << ',' << Log2_32(ByteAlignment);
// e.g. _a.
void MCAsmStreamer::EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
uint64_t Size, unsigned ByteAlignment) {
- assert(Symbol != NULL && "Symbol shouldn't be NULL!");
+ AssignSection(Symbol, Section);
+
+ assert(Symbol && "Symbol shouldn't be NULL!");
// Instead of using the Section we'll just use the shortcut.
// This is a mach-o specific directive and section.
OS << ".tbss " << *Symbol << ", " << Size;
}
-void MCAsmStreamer::EmitBytes(StringRef Data, unsigned AddrSpace) {
- assert(getCurrentSection() && "Cannot emit contents before setting section!");
+void MCAsmStreamer::EmitBytes(StringRef Data) {
+ assert(getCurrentSection().first &&
+ "Cannot emit contents before setting section!");
if (Data.empty()) return;
if (Data.size() == 1) {
- OS << MAI.getData8bitsDirective(AddrSpace);
+ OS << MAI->getData8bitsDirective();
OS << (unsigned)(unsigned char)Data[0];
EmitEOL();
return;
// If the data ends with 0 and the target supports .asciz, use it, otherwise
// use .ascii
- if (MAI.getAscizDirective() && Data.back() == 0) {
- OS << MAI.getAscizDirective();
+ if (MAI->getAscizDirective() && Data.back() == 0) {
+ OS << MAI->getAscizDirective();
Data = Data.substr(0, Data.size()-1);
} else {
- OS << MAI.getAsciiDirective();
+ OS << MAI->getAsciiDirective();
}
- OS << ' ';
PrintQuotedString(Data, OS);
EmitEOL();
}
-void MCAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size,
- unsigned AddrSpace) {
- EmitValue(MCConstantExpr::Create(Value, getContext()), Size, AddrSpace);
+void MCAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size) {
+ EmitValue(MCConstantExpr::Create(Value, getContext()), Size);
}
void MCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace) {
- assert(getCurrentSection() && "Cannot emit contents before setting section!");
- const char *Directive = 0;
+ const SMLoc &Loc) {
+ assert(Size <= 8 && "Invalid size");
+ assert(getCurrentSection().first &&
+ "Cannot emit contents before setting section!");
+ const char *Directive = nullptr;
switch (Size) {
default: break;
- case 1: Directive = MAI.getData8bitsDirective(AddrSpace); break;
- case 2: Directive = MAI.getData16bitsDirective(AddrSpace); break;
- case 4: Directive = MAI.getData32bitsDirective(AddrSpace); break;
- case 8:
- Directive = MAI.getData64bitsDirective(AddrSpace);
- // If the target doesn't support 64-bit data, emit as two 32-bit halves.
- if (Directive) break;
+ case 1: Directive = MAI->getData8bitsDirective(); break;
+ case 2: Directive = MAI->getData16bitsDirective(); break;
+ case 4: Directive = MAI->getData32bitsDirective(); break;
+ case 8: Directive = MAI->getData64bitsDirective(); break;
+ }
+
+ if (!Directive) {
int64_t IntValue;
if (!Value->EvaluateAsAbsolute(IntValue))
report_fatal_error("Don't know how to emit this value.");
- if (getContext().getAsmInfo().isLittleEndian()) {
- EmitIntValue((uint32_t)(IntValue >> 0 ), 4, AddrSpace);
- EmitIntValue((uint32_t)(IntValue >> 32), 4, AddrSpace);
- } else {
- EmitIntValue((uint32_t)(IntValue >> 32), 4, AddrSpace);
- EmitIntValue((uint32_t)(IntValue >> 0 ), 4, AddrSpace);
+
+ // We couldn't handle the requested integer size so we fallback by breaking
+ // the request down into several, smaller, integers. Since sizes greater
+ // than eight are invalid and size equivalent to eight should have been
+ // handled earlier, we use four bytes as our largest piece of granularity.
+ bool IsLittleEndian = MAI->isLittleEndian();
+ for (unsigned Emitted = 0; Emitted != Size;) {
+ unsigned Remaining = Size - Emitted;
+ // The size of our partial emission must be a power of two less than
+ // eight.
+ unsigned EmissionSize = PowerOf2Floor(Remaining);
+ if (EmissionSize > 4)
+ EmissionSize = 4;
+ // Calculate the byte offset of our partial emission taking into account
+ // the endianness of the target.
+ unsigned ByteOffset =
+ IsLittleEndian ? Emitted : (Remaining - EmissionSize);
+ uint64_t ValueToEmit = IntValue >> (ByteOffset * 8);
+ // We truncate our partial emission to fit within the bounds of the
+ // emission domain. This produces nicer output and silences potential
+ // truncation warnings when round tripping through another assembler.
+ uint64_t Shift = 64 - EmissionSize * 8;
+ assert(Shift < static_cast<uint64_t>(
+ std::numeric_limits<unsigned long long>::digits) &&
+ "undefined behavior");
+ ValueToEmit &= ~0ULL >> Shift;
+ EmitIntValue(ValueToEmit, EmissionSize);
+ Emitted += EmissionSize;
}
return;
}
EmitULEB128IntValue(IntValue);
return;
}
- assert(MAI.hasLEB128() && "Cannot print a .uleb");
OS << ".uleb128 " << *Value;
EmitEOL();
}
EmitSLEB128IntValue(IntValue);
return;
}
- assert(MAI.hasLEB128() && "Cannot print a .sleb");
OS << ".sleb128 " << *Value;
EmitEOL();
}
void MCAsmStreamer::EmitGPRel64Value(const MCExpr *Value) {
- assert(MAI.getGPRel64Directive() != 0);
- OS << MAI.getGPRel64Directive() << *Value;
+ assert(MAI->getGPRel64Directive() != nullptr);
+ OS << MAI->getGPRel64Directive() << *Value;
EmitEOL();
}
void MCAsmStreamer::EmitGPRel32Value(const MCExpr *Value) {
- assert(MAI.getGPRel32Directive() != 0);
- OS << MAI.getGPRel32Directive() << *Value;
+ assert(MAI->getGPRel32Directive() != nullptr);
+ OS << MAI->getGPRel32Directive() << *Value;
EmitEOL();
}
/// EmitFill - Emit NumBytes bytes worth of the value specified by
/// FillValue. This implements directives such as '.space'.
-void MCAsmStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue,
- unsigned AddrSpace) {
+void MCAsmStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue) {
if (NumBytes == 0) return;
- if (AddrSpace == 0)
- if (const char *ZeroDirective = MAI.getZeroDirective()) {
- OS << ZeroDirective << NumBytes;
- if (FillValue != 0)
- OS << ',' << (int)FillValue;
- EmitEOL();
- return;
- }
+ if (const char *ZeroDirective = MAI->getZeroDirective()) {
+ OS << ZeroDirective << NumBytes;
+ if (FillValue != 0)
+ OS << ',' << (int)FillValue;
+ EmitEOL();
+ return;
+ }
// Emit a byte at a time.
- MCStreamer::EmitFill(NumBytes, FillValue, AddrSpace);
+ MCStreamer::EmitFill(NumBytes, FillValue);
}
void MCAsmStreamer::EmitValueToAlignment(unsigned ByteAlignment, int64_t Value,
// emit alignments as a power of two if possible.
if (isPowerOf2_32(ByteAlignment)) {
switch (ValueSize) {
- default: llvm_unreachable("Invalid size for machine code value!");
- case 1: OS << MAI.getAlignDirective(); break;
- // FIXME: use MAI for this!
- case 2: OS << ".p2alignw "; break;
- case 4: OS << ".p2alignl "; break;
- case 8: llvm_unreachable("Unsupported alignment size!");
+ default:
+ llvm_unreachable("Invalid size for machine code value!");
+ case 1:
+ OS << "\t.align\t";
+ break;
+ case 2:
+ OS << ".p2alignw ";
+ break;
+ case 4:
+ OS << ".p2alignl ";
+ break;
+ case 8:
+ llvm_unreachable("Unsupported alignment size!");
}
- if (MAI.getAlignmentIsInBytes())
+ if (MAI->getAlignmentIsInBytes())
OS << ByteAlignment;
else
OS << Log2_32(ByteAlignment);
void MCAsmStreamer::EmitCodeAlignment(unsigned ByteAlignment,
unsigned MaxBytesToEmit) {
// Emit with a text fill value.
- EmitValueToAlignment(ByteAlignment, MAI.getTextAlignFillValue(),
+ EmitValueToAlignment(ByteAlignment, MAI->getTextAlignFillValue(),
1, MaxBytesToEmit);
}
void MCAsmStreamer::EmitFileDirective(StringRef Filename) {
- assert(MAI.hasSingleParameterDotFile());
+ assert(MAI->hasSingleParameterDotFile());
OS << "\t.file\t";
PrintQuotedString(Filename, OS);
EmitEOL();
}
-bool MCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
- StringRef Filename) {
+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);
-
- SmallString<128> FullPathName = Directory;
- sys::path::append(FullPathName, Filename);
- return EmitDwarfFileDirective(FileNo, "", FullPathName);
+ Directory = "";
+ else {
+ FullPathName = Directory;
+ sys::path::append(FullPathName, Filename);
+ Directory = "";
+ Filename = FullPathName;
+ }
}
- if (UseLoc) {
- OS << "\t.file\t" << FileNo << ' ';
- if (!Directory.empty()) {
- PrintQuotedString(Directory, OS);
- OS << ' ';
- }
- PrintQuotedString(Filename, OS);
- EmitEOL();
+ OS << "\t.file\t" << FileNo << ' ';
+ if (!Directory.empty()) {
+ PrintQuotedString(Directory, OS);
+ OS << ' ';
}
- return this->MCStreamer::EmitDwarfFileDirective(FileNo, Directory, Filename);
+ PrintQuotedString(Filename, OS);
+ EmitEOL();
+
+ return FileNo;
}
void MCAsmStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
unsigned Isa,
unsigned Discriminator,
StringRef FileName) {
- this->MCStreamer::EmitDwarfLocDirective(FileNo, Line, Column, Flags,
- Isa, Discriminator, FileName);
- if (!UseLoc)
- return;
-
OS << "\t.loc\t" << FileNo << " " << Line << " " << Column;
if (Flags & DWARF2_FLAG_BASIC_BLOCK)
OS << " basic_block";
}
if (Isa)
- OS << "isa " << Isa;
+ OS << " isa " << Isa;
if (Discriminator)
- OS << "discriminator " << Discriminator;
+ OS << " discriminator " << Discriminator;
if (IsVerboseAsm) {
- OS.PadToColumn(MAI.getCommentColumn());
- OS << MAI.getCommentString() << ' ' << FileName << ':'
+ OS.PadToColumn(MAI->getCommentColumn());
+ OS << MAI->getCommentString() << ' ' << FileName << ':'
<< Line << ':' << Column;
}
EmitEOL();
+ this->MCStreamer::EmitDwarfLocDirective(FileNo, Line, Column, Flags,
+ Isa, Discriminator, FileName);
}
-void MCAsmStreamer::EmitCFISections(bool EH, bool Debug) {
- MCStreamer::EmitCFISections(EH, Debug);
+MCSymbol *MCAsmStreamer::getDwarfLineTableSymbol(unsigned CUID) {
+ // Always use the zeroth line table, since asm syntax only supports one line
+ // table for now.
+ return MCStreamer::getDwarfLineTableSymbol(0);
+}
- if (!UseCFI)
- return;
+void MCAsmStreamer::EmitIdent(StringRef IdentString) {
+ assert(MAI->hasIdentDirective() && ".ident directive not supported");
+ OS << "\t.ident\t";
+ PrintQuotedString(IdentString, OS);
+ EmitEOL();
+}
+void MCAsmStreamer::EmitCFISections(bool EH, bool Debug) {
+ MCStreamer::EmitCFISections(EH, Debug);
OS << "\t.cfi_sections ";
if (EH) {
OS << ".eh_frame";
}
void MCAsmStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
- if (!UseCFI) {
- RecordProcStart(Frame);
- return;
- }
-
OS << "\t.cfi_startproc";
+ if (Frame.IsSimple)
+ OS << " simple";
EmitEOL();
}
void MCAsmStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
- if (!UseCFI) {
- RecordProcEnd(Frame);
- return;
- }
-
- // Put a dummy non-null value in Frame.End to mark that this frame has been
- // closed.
- Frame.End = (MCSymbol *) 1;
-
+ MCStreamer::EmitCFIEndProcImpl(Frame);
OS << "\t.cfi_endproc";
EmitEOL();
}
void MCAsmStreamer::EmitRegisterName(int64_t Register) {
- if (InstPrinter && !MAI.useDwarfRegNumForCFI()) {
- const MCRegisterInfo &MRI = getContext().getRegisterInfo();
- unsigned LLVMRegister = MRI.getLLVMRegNum(Register, true);
+ if (InstPrinter && !MAI->useDwarfRegNumForCFI()) {
+ const MCRegisterInfo *MRI = getContext().getRegisterInfo();
+ unsigned LLVMRegister = MRI->getLLVMRegNum(Register, true);
InstPrinter->printRegName(OS, LLVMRegister);
} else {
OS << Register;
void MCAsmStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
MCStreamer::EmitCFIDefCfa(Register, Offset);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_def_cfa ";
EmitRegisterName(Register);
OS << ", " << Offset;
void MCAsmStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
MCStreamer::EmitCFIDefCfaOffset(Offset);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_def_cfa_offset " << Offset;
EmitEOL();
}
void MCAsmStreamer::EmitCFIDefCfaRegister(int64_t Register) {
MCStreamer::EmitCFIDefCfaRegister(Register);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_def_cfa_register ";
EmitRegisterName(Register);
EmitEOL();
void MCAsmStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
this->MCStreamer::EmitCFIOffset(Register, Offset);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_offset ";
EmitRegisterName(Register);
OS << ", " << Offset;
void MCAsmStreamer::EmitCFIPersonality(const MCSymbol *Sym,
unsigned Encoding) {
MCStreamer::EmitCFIPersonality(Sym, Encoding);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_personality " << Encoding << ", " << *Sym;
EmitEOL();
}
void MCAsmStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
MCStreamer::EmitCFILsda(Sym, Encoding);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_lsda " << Encoding << ", " << *Sym;
EmitEOL();
}
void MCAsmStreamer::EmitCFIRememberState() {
MCStreamer::EmitCFIRememberState();
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_remember_state";
EmitEOL();
}
void MCAsmStreamer::EmitCFIRestoreState() {
MCStreamer::EmitCFIRestoreState();
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_restore_state";
EmitEOL();
}
void MCAsmStreamer::EmitCFISameValue(int64_t Register) {
MCStreamer::EmitCFISameValue(Register);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_same_value ";
EmitRegisterName(Register);
EmitEOL();
void MCAsmStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) {
MCStreamer::EmitCFIRelOffset(Register, Offset);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_rel_offset ";
EmitRegisterName(Register);
OS << ", " << Offset;
void MCAsmStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
MCStreamer::EmitCFIAdjustCfaOffset(Adjustment);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_adjust_cfa_offset " << Adjustment;
EmitEOL();
}
void MCAsmStreamer::EmitCFISignalFrame() {
MCStreamer::EmitCFISignalFrame();
+ OS << "\t.cfi_signal_frame";
+ EmitEOL();
+}
- if (!UseCFI)
- return;
+void MCAsmStreamer::EmitCFIUndefined(int64_t Register) {
+ MCStreamer::EmitCFIUndefined(Register);
+ OS << "\t.cfi_undefined " << Register;
+ EmitEOL();
+}
- OS << "\t.cfi_signal_frame";
+void MCAsmStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
+ MCStreamer::EmitCFIRegister(Register1, Register2);
+ OS << "\t.cfi_register " << Register1 << ", " << Register2;
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) {
- MCStreamer::EmitWin64EHStartProc(Symbol);
+void MCAsmStreamer::EmitCFIWindowSave() {
+ MCStreamer::EmitCFIWindowSave();
+ OS << "\t.cfi_window_save";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinCFIStartProc(const MCSymbol *Symbol) {
+ MCStreamer::EmitWinCFIStartProc(Symbol);
OS << ".seh_proc " << *Symbol;
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHEndProc() {
- MCStreamer::EmitWin64EHEndProc();
+void MCAsmStreamer::EmitWinCFIEndProc() {
+ MCStreamer::EmitWinCFIEndProc();
OS << "\t.seh_endproc";
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHStartChained() {
- MCStreamer::EmitWin64EHStartChained();
+void MCAsmStreamer::EmitWinCFIStartChained() {
+ MCStreamer::EmitWinCFIStartChained();
OS << "\t.seh_startchained";
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHEndChained() {
- MCStreamer::EmitWin64EHEndChained();
+void MCAsmStreamer::EmitWinCFIEndChained() {
+ MCStreamer::EmitWinCFIEndChained();
OS << "\t.seh_endchained";
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
- bool Except) {
- MCStreamer::EmitWin64EHHandler(Sym, Unwind, Except);
+void MCAsmStreamer::EmitWinEHHandler(const MCSymbol *Sym, bool Unwind,
+ bool Except) {
+ MCStreamer::EmitWinEHHandler(Sym, Unwind, Except);
OS << "\t.seh_handler " << *Sym;
if (Unwind)
EmitEOL();
}
-static const MCSection *getWin64EHTableSection(StringRef suffix,
- MCContext &context) {
- // FIXME: This doesn't belong in MCObjectFileInfo. However,
- /// this duplicate code in MCWin64EH.cpp.
- if (suffix == "")
- return context.getObjectFileInfo()->getXDataSection();
- return context.getCOFFSection((".xdata"+suffix).str(),
- COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
- COFF::IMAGE_SCN_MEM_READ |
- COFF::IMAGE_SCN_MEM_WRITE,
- SectionKind::getDataRel());
-}
-
-void MCAsmStreamer::EmitWin64EHHandlerData() {
- MCStreamer::EmitWin64EHHandlerData();
+void MCAsmStreamer::EmitWinEHHandlerData() {
+ MCStreamer::EmitWinEHHandlerData();
// Switch sections. Don't call SwitchSection directly, because that will
// cause the section switch to be visible in the emitted assembly.
// We only do this so the section switch that terminates the handler
// data block is visible.
- MCWin64EHUnwindInfo *CurFrame = getCurrentW64UnwindInfo();
- StringRef suffix=MCWin64EHUnwindEmitter::GetSectionSuffix(CurFrame->Function);
- const MCSection *xdataSect = getWin64EHTableSection(suffix, getContext());
- if (xdataSect)
- SwitchSectionNoChange(xdataSect);
+ WinEH::FrameInfo *CurFrame = getCurrentWinFrameInfo();
+ if (const MCSection *XData = WinEH::UnwindEmitter::getXDataSection(
+ CurFrame->Function, getContext()))
+ SwitchSectionNoChange(XData);
OS << "\t.seh_handlerdata";
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHPushReg(unsigned Register) {
- MCStreamer::EmitWin64EHPushReg(Register);
+void MCAsmStreamer::EmitWinCFIPushReg(unsigned Register) {
+ MCStreamer::EmitWinCFIPushReg(Register);
OS << "\t.seh_pushreg " << Register;
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) {
- MCStreamer::EmitWin64EHSetFrame(Register, Offset);
+void MCAsmStreamer::EmitWinCFISetFrame(unsigned Register, unsigned Offset) {
+ MCStreamer::EmitWinCFISetFrame(Register, Offset);
OS << "\t.seh_setframe " << Register << ", " << Offset;
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHAllocStack(unsigned Size) {
- MCStreamer::EmitWin64EHAllocStack(Size);
+void MCAsmStreamer::EmitWinCFIAllocStack(unsigned Size) {
+ MCStreamer::EmitWinCFIAllocStack(Size);
OS << "\t.seh_stackalloc " << Size;
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) {
- MCStreamer::EmitWin64EHSaveReg(Register, Offset);
+void MCAsmStreamer::EmitWinCFISaveReg(unsigned Register, unsigned Offset) {
+ MCStreamer::EmitWinCFISaveReg(Register, Offset);
OS << "\t.seh_savereg " << Register << ", " << Offset;
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) {
- MCStreamer::EmitWin64EHSaveXMM(Register, Offset);
+void MCAsmStreamer::EmitWinCFISaveXMM(unsigned Register, unsigned Offset) {
+ MCStreamer::EmitWinCFISaveXMM(Register, Offset);
OS << "\t.seh_savexmm " << Register << ", " << Offset;
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHPushFrame(bool Code) {
- MCStreamer::EmitWin64EHPushFrame(Code);
+void MCAsmStreamer::EmitWinCFIPushFrame(bool Code) {
+ MCStreamer::EmitWinCFIPushFrame(Code);
OS << "\t.seh_pushframe";
if (Code)
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHEndProlog(void) {
- MCStreamer::EmitWin64EHEndProlog();
+void MCAsmStreamer::EmitWinCFIEndProlog(void) {
+ MCStreamer::EmitWinCFIEndProlog();
OS << "\t.seh_endprologue";
EmitEOL();
}
-void MCAsmStreamer::AddEncodingComment(const MCInst &Inst) {
+void MCAsmStreamer::AddEncodingComment(const MCInst &Inst,
+ const MCSubtargetInfo &STI) {
raw_ostream &OS = GetCommentOS();
SmallString<256> Code;
SmallVector<MCFixup, 4> Fixups;
raw_svector_ostream VecOS(Code);
- Emitter->EncodeInstruction(Inst, VecOS, Fixups);
+ Emitter->EncodeInstruction(Inst, VecOS, Fixups, STI);
VecOS.flush();
// If we are showing fixups, create symbolic markers in the encoded
unsigned Bit = (Code[i] >> j) & 1;
unsigned FixupBit;
- if (getContext().getAsmInfo().isLittleEndian())
+ if (MAI->isLittleEndian())
FixupBit = i * 8 + j;
else
FixupBit = i * 8 + (7-j);
}
}
-void MCAsmStreamer::EmitFnStart() {
- OS << "\t.fnstart";
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitFnEnd() {
- OS << "\t.fnend";
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitCantUnwind() {
- OS << "\t.cantunwind";
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitHandlerData() {
- OS << "\t.handlerdata";
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitPersonality(const MCSymbol *Personality) {
- OS << "\t.personality " << Personality->getName();
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) {
- OS << "\t.setfp\t";
- InstPrinter->printRegName(OS, FpReg);
- OS << ", ";
- InstPrinter->printRegName(OS, SpReg);
- if (Offset)
- OS << ", #" << Offset;
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitPad(int64_t Offset) {
- OS << "\t.pad\t#" << Offset;
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList,
- bool isVector) {
- assert(RegList.size() && "RegList should not be empty");
- if (isVector)
- OS << "\t.vsave\t{";
- else
- OS << "\t.save\t{";
-
- InstPrinter->printRegName(OS, RegList[0]);
-
- for (unsigned i = 1, e = RegList.size(); i != e; ++i) {
- OS << ", ";
- InstPrinter->printRegName(OS, RegList[i]);
- }
-
- OS << "}";
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitInstruction(const MCInst &Inst) {
- assert(getCurrentSection() && "Cannot emit contents before setting section!");
+void MCAsmStreamer::EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI) {
+ assert(getCurrentSection().first &&
+ "Cannot emit contents before setting section!");
// Show the encoding in a comment if we have a code emitter.
if (Emitter)
- AddEncodingComment(Inst);
+ AddEncodingComment(Inst, STI);
// Show the MCInst if enabled.
if (ShowInst) {
- Inst.dump_pretty(GetCommentOS(), &MAI, InstPrinter.get(), "\n ");
+ Inst.dump_pretty(GetCommentOS(), InstPrinter.get(), "\n ");
GetCommentOS() << "\n";
}
// If we have an AsmPrinter, use that to print, otherwise print the MCInst.
if (InstPrinter)
- InstPrinter->printInst(&Inst, OS, "");
+ InstPrinter->printInst(&Inst, OS, "", STI);
else
- Inst.print(OS, &MAI);
+ Inst.print(OS);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitBundleAlignMode(unsigned AlignPow2) {
+ OS << "\t.bundle_align_mode " << AlignPow2;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitBundleLock(bool AlignToEnd) {
+ OS << "\t.bundle_lock";
+ if (AlignToEnd)
+ OS << " align_to_end";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitBundleUnlock() {
+ OS << "\t.bundle_unlock";
EmitEOL();
}
/// 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.
-void MCAsmStreamer::EmitRawText(StringRef String) {
+void MCAsmStreamer::EmitRawTextImpl(StringRef String) {
if (!String.empty() && String.back() == '\n')
String = String.substr(0, String.size()-1);
OS << String;
}
void MCAsmStreamer::FinishImpl() {
- // FIXME: This header is duplicated with MCObjectStreamer
- // Dump out the dwarf file & directory tables and line tables.
- const MCSymbol *LineSectionSymbol = NULL;
- if (getContext().hasDwarfFiles() && !UseLoc)
- LineSectionSymbol = MCDwarfFileTable::Emit(this);
-
// If we are generating dwarf for assembly source files dump out the sections.
if (getContext().getGenDwarfForAssembly())
- MCGenDwarfInfo::Emit(this, LineSectionSymbol);
-
- if (!UseCFI)
- EmitFrames(false);
+ MCGenDwarfInfo::Emit(this);
+
+ // Emit the label for the line table, if requested - since the rest of the
+ // line table will be defined by .loc/.file directives, and not emitted
+ // directly, the label is the only work required here.
+ auto &Tables = getContext().getMCDwarfLineTables();
+ if (!Tables.empty()) {
+ assert(Tables.size() == 1 && "asm output only supports one line table");
+ if (auto *Label = Tables.begin()->second.getLabel()) {
+ SwitchSection(getContext().getObjectFileInfo()->getDwarfLineSection());
+ EmitLabel(Label);
+ }
+ }
}
+
MCStreamer *llvm::createAsmStreamer(MCContext &Context,
formatted_raw_ostream &OS,
- bool isVerboseAsm, bool useLoc,
- bool useCFI, bool useDwarfDirectory,
+ bool isVerboseAsm, bool useDwarfDirectory,
MCInstPrinter *IP, MCCodeEmitter *CE,
MCAsmBackend *MAB, bool ShowInst) {
- return new MCAsmStreamer(Context, OS, isVerboseAsm, useLoc, useCFI,
- useDwarfDirectory, IP, CE, MAB, ShowInst);
+ return new MCAsmStreamer(Context, OS, isVerboseAsm, useDwarfDirectory, IP, CE,
+ MAB, ShowInst);
}
projects / oota-llvm.git / blobdiff