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diff --git a/contrib/llvm-project/llvm/lib/MC/MCAsmStreamer.cpp b/contrib/llvm-project/llvm/lib/MC/MCAsmStreamer.cpp
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+++ b/contrib/llvm-project/llvm/lib/MC/MCAsmStreamer.cpp
@@ -0,0 +1,1941 @@
+//===- lib/MC/MCAsmStreamer.cpp - Text Assembly Output ----------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/Optional.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/MCAssembler.h"
+#include "llvm/MC/MCCodeEmitter.h"
+#include "llvm/MC/MCCodeView.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCFixupKindInfo.h"
+#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCInstPrinter.h"
+#include "llvm/MC/MCObjectFileInfo.h"
+#include "llvm/MC/MCObjectWriter.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCSectionMachO.h"
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/LEB128.h"
+#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/TargetRegistry.h"
+#include <cctype>
+
+using namespace llvm;
+
+namespace {
+
+class MCAsmStreamer final : public MCStreamer {
+ std::unique_ptr<formatted_raw_ostream> OSOwner;
+ formatted_raw_ostream &OS;
+ const MCAsmInfo *MAI;
+ std::unique_ptr<MCInstPrinter> InstPrinter;
+ std::unique_ptr<MCAssembler> Assembler;
+
+ SmallString<128> ExplicitCommentToEmit;
+ SmallString<128> CommentToEmit;
+ raw_svector_ostream CommentStream;
+ raw_null_ostream NullStream;
+
+ unsigned IsVerboseAsm : 1;
+ unsigned ShowInst : 1;
+ unsigned UseDwarfDirectory : 1;
+
+ void EmitRegisterName(int64_t Register);
+ void EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) override;
+ void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) override;
+
+public:
+ MCAsmStreamer(MCContext &Context, std::unique_ptr<formatted_raw_ostream> os,
+ bool isVerboseAsm, bool useDwarfDirectory,
+ MCInstPrinter *printer, std::unique_ptr<MCCodeEmitter> emitter,
+ std::unique_ptr<MCAsmBackend> asmbackend, bool showInst)
+ : MCStreamer(Context), OSOwner(std::move(os)), OS(*OSOwner),
+ MAI(Context.getAsmInfo()), InstPrinter(printer),
+ Assembler(llvm::make_unique<MCAssembler>(
+ Context, std::move(asmbackend), std::move(emitter),
+ (asmbackend) ? asmbackend->createObjectWriter(NullStream)
+ : nullptr)),
+ CommentStream(CommentToEmit), IsVerboseAsm(isVerboseAsm),
+ ShowInst(showInst), UseDwarfDirectory(useDwarfDirectory) {
+ assert(InstPrinter);
+ if (IsVerboseAsm)
+ InstPrinter->setCommentStream(CommentStream);
+ }
+
+ MCAssembler &getAssembler() { return *Assembler; }
+ MCAssembler *getAssemblerPtr() override { return nullptr; }
+
+ inline void EmitEOL() {
+ // Dump Explicit Comments here.
+ emitExplicitComments();
+ // If we don't have any comments, just emit a \n.
+ if (!IsVerboseAsm) {
+ OS << '\n';
+ return;
+ }
+ EmitCommentsAndEOL();
+ }
+
+ void EmitSyntaxDirective() override;
+
+ void EmitCommentsAndEOL();
+
+ /// Return true if this streamer supports verbose assembly at all.
+ bool isVerboseAsm() const override { return IsVerboseAsm; }
+
+ /// Do we support EmitRawText?
+ bool hasRawTextSupport() const override { return true; }
+
+ /// Add a comment that can be emitted to the generated .s file to make the
+ /// output of the compiler more readable. This only affects the MCAsmStreamer
+ /// and only when verbose assembly output is enabled.
+ void AddComment(const Twine &T, bool EOL = true) override;
+
+ /// Add a comment showing the encoding of an instruction.
+ void AddEncodingComment(const MCInst &Inst, const MCSubtargetInfo &);
+
+ /// 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.
+ 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;
+
+ void addExplicitComment(const Twine &T) override;
+ void emitExplicitComments() override;
+
+ /// Emit a blank line to a .s file to pretty it up.
+ void AddBlankLine() override {
+ EmitEOL();
+ }
+
+ /// @name MCStreamer Interface
+ /// @{
+
+ void ChangeSection(MCSection *Section, const MCExpr *Subsection) override;
+
+ void emitELFSymverDirective(StringRef AliasName,
+ const MCSymbol *Aliasee) override;
+
+ void EmitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args) override;
+ void EmitLabel(MCSymbol *Symbol, SMLoc Loc = SMLoc()) 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, VersionTuple SDKVersion) override;
+ void EmitBuildVersion(unsigned Platform, unsigned Major, unsigned Minor,
+ unsigned Update, VersionTuple SDKVersion) 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 EmitCOFFSafeSEH(MCSymbol const *Symbol) override;
+ void EmitCOFFSymbolIndex(MCSymbol const *Symbol) override;
+ void EmitCOFFSectionIndex(MCSymbol const *Symbol) override;
+ void EmitCOFFSecRel32(MCSymbol const *Symbol, uint64_t Offset) override;
+ void EmitCOFFImgRel32(MCSymbol const *Symbol, int64_t Offset) override;
+ void emitELFSize(MCSymbol *Symbol, const MCExpr *Value) override;
+ void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment) override;
+
+ /// 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.
+ void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment) override;
+
+ void EmitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr,
+ uint64_t Size = 0, unsigned ByteAlignment = 0,
+ SMLoc Loc = SMLoc()) override;
+
+ void EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment = 0) override;
+
+ void EmitBinaryData(StringRef Data) override;
+
+ void EmitBytes(StringRef Data) override;
+
+ void EmitValueImpl(const MCExpr *Value, unsigned Size,
+ SMLoc Loc = SMLoc()) override;
+ void EmitIntValue(uint64_t Value, unsigned Size) override;
+ void EmitIntValueInHex(uint64_t Value, unsigned Size) override;
+
+ void EmitULEB128Value(const MCExpr *Value) override;
+
+ void EmitSLEB128Value(const MCExpr *Value) override;
+
+ void EmitDTPRel32Value(const MCExpr *Value) override;
+ void EmitDTPRel64Value(const MCExpr *Value) override;
+ void EmitTPRel32Value(const MCExpr *Value) override;
+ void EmitTPRel64Value(const MCExpr *Value) override;
+
+ void EmitGPRel64Value(const MCExpr *Value) override;
+
+ void EmitGPRel32Value(const MCExpr *Value) override;
+
+ void emitFill(const MCExpr &NumBytes, uint64_t FillValue,
+ SMLoc Loc = SMLoc()) override;
+
+ void emitFill(const MCExpr &NumValues, int64_t Size, int64_t Expr,
+ SMLoc Loc = SMLoc()) override;
+
+ void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
+ unsigned ValueSize = 1,
+ unsigned MaxBytesToEmit = 0) override;
+
+ void EmitCodeAlignment(unsigned ByteAlignment,
+ unsigned MaxBytesToEmit = 0) override;
+
+ void emitValueToOffset(const MCExpr *Offset,
+ unsigned char Value,
+ SMLoc Loc) override;
+
+ void EmitFileDirective(StringRef Filename) override;
+ Expected<unsigned> tryEmitDwarfFileDirective(unsigned FileNo,
+ StringRef Directory,
+ StringRef Filename,
+ Optional<MD5::MD5Result> Checksum = None,
+ Optional<StringRef> Source = None,
+ unsigned CUID = 0) override;
+ void emitDwarfFile0Directive(StringRef Directory, StringRef Filename,
+ Optional<MD5::MD5Result> Checksum,
+ Optional<StringRef> Source,
+ 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;
+
+ bool EmitCVFileDirective(unsigned FileNo, StringRef Filename,
+ ArrayRef<uint8_t> Checksum,
+ unsigned ChecksumKind) override;
+ bool EmitCVFuncIdDirective(unsigned FuncId) override;
+ bool EmitCVInlineSiteIdDirective(unsigned FunctionId, unsigned IAFunc,
+ unsigned IAFile, unsigned IALine,
+ unsigned IACol, SMLoc Loc) override;
+ void EmitCVLocDirective(unsigned FunctionId, unsigned FileNo, unsigned Line,
+ unsigned Column, bool PrologueEnd, bool IsStmt,
+ StringRef FileName, SMLoc Loc) override;
+ void EmitCVLinetableDirective(unsigned FunctionId, const MCSymbol *FnStart,
+ const MCSymbol *FnEnd) override;
+ void EmitCVInlineLinetableDirective(unsigned PrimaryFunctionId,
+ unsigned SourceFileId,
+ unsigned SourceLineNum,
+ const MCSymbol *FnStartSym,
+ const MCSymbol *FnEndSym) override;
+ void EmitCVDefRangeDirective(
+ ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
+ StringRef FixedSizePortion) override;
+ void EmitCVStringTableDirective() override;
+ void EmitCVFileChecksumsDirective() override;
+ void EmitCVFileChecksumOffsetDirective(unsigned FileNo) override;
+ void EmitCVFPOData(const MCSymbol *ProcSym, SMLoc L) override;
+
+ void EmitIdent(StringRef IdentString) override;
+ void EmitCFIBKeyFrame() 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 EmitCFIRestore(int64_t Register) override;
+ void EmitCFISameValue(int64_t Register) override;
+ void EmitCFIRelOffset(int64_t Register, int64_t Offset) override;
+ void EmitCFIAdjustCfaOffset(int64_t Adjustment) override;
+ void EmitCFIEscape(StringRef Values) override;
+ void EmitCFIGnuArgsSize(int64_t Size) override;
+ void EmitCFISignalFrame() override;
+ void EmitCFIUndefined(int64_t Register) override;
+ void EmitCFIRegister(int64_t Register1, int64_t Register2) override;
+ void EmitCFIWindowSave() override;
+ void EmitCFINegateRAState() override;
+ void EmitCFIReturnColumn(int64_t Register) override;
+
+ void EmitWinCFIStartProc(const MCSymbol *Symbol, SMLoc Loc) override;
+ void EmitWinCFIEndProc(SMLoc Loc) override;
+ void EmitWinCFIFuncletOrFuncEnd(SMLoc Loc) override;
+ void EmitWinCFIStartChained(SMLoc Loc) override;
+ void EmitWinCFIEndChained(SMLoc Loc) override;
+ void EmitWinCFIPushReg(unsigned Register, SMLoc Loc) override;
+ void EmitWinCFISetFrame(unsigned Register, unsigned Offset,
+ SMLoc Loc) override;
+ void EmitWinCFIAllocStack(unsigned Size, SMLoc Loc) override;
+ void EmitWinCFISaveReg(unsigned Register, unsigned Offset,
+ SMLoc Loc) override;
+ void EmitWinCFISaveXMM(unsigned Register, unsigned Offset,
+ SMLoc Loc) override;
+ void EmitWinCFIPushFrame(bool Code, SMLoc Loc) override;
+ void EmitWinCFIEndProlog(SMLoc Loc) override;
+
+ void EmitWinEHHandler(const MCSymbol *Sym, bool Unwind, bool Except,
+ SMLoc Loc) override;
+ void EmitWinEHHandlerData(SMLoc Loc) override;
+
+ void emitCGProfileEntry(const MCSymbolRefExpr *From,
+ const MCSymbolRefExpr *To, uint64_t Count) override;
+
+ void EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI) override;
+
+ void EmitBundleAlignMode(unsigned AlignPow2) override;
+ void EmitBundleLock(bool AlignToEnd) override;
+ void EmitBundleUnlock() override;
+
+ bool EmitRelocDirective(const MCExpr &Offset, StringRef Name,
+ const MCExpr *Expr, SMLoc Loc,
+ const MCSubtargetInfo &STI) override;
+
+ void EmitAddrsig() override;
+ void EmitAddrsigSym(const MCSymbol *Sym) override;
+
+ /// 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 EmitRawTextImpl(StringRef String) override;
+
+ void FinishImpl() override;
+};
+
+} // end anonymous namespace.
+
+void MCAsmStreamer::AddComment(const Twine &T, bool EOL) {
+ if (!IsVerboseAsm) return;
+
+ T.toVector(CommentToEmit);
+
+ if (EOL)
+ CommentToEmit.push_back('\n'); // Place comment in a new line.
+}
+
+void MCAsmStreamer::EmitCommentsAndEOL() {
+ if (CommentToEmit.empty() && CommentStream.GetNumBytesInBuffer() == 0) {
+ OS << '\n';
+ return;
+ }
+
+ StringRef Comments = CommentToEmit;
+
+ assert(Comments.back() == '\n' &&
+ "Comment array not newline terminated");
+ do {
+ // Emit a line of comments.
+ OS.PadToColumn(MAI->getCommentColumn());
+ size_t Position = Comments.find('\n');
+ OS << MAI->getCommentString() << ' ' << Comments.substr(0, Position) <<'\n';
+
+ Comments = Comments.substr(Position+1);
+ } while (!Comments.empty());
+
+ CommentToEmit.clear();
+}
+
+static inline int64_t truncateToSize(int64_t Value, unsigned Bytes) {
+ assert(Bytes > 0 && Bytes <= 8 && "Invalid size!");
+ return Value & ((uint64_t) (int64_t) -1 >> (64 - Bytes * 8));
+}
+
+void MCAsmStreamer::emitRawComment(const Twine &T, bool TabPrefix) {
+ if (TabPrefix)
+ OS << '\t';
+ OS << MAI->getCommentString() << T;
+ EmitEOL();
+}
+
+void MCAsmStreamer::addExplicitComment(const Twine &T) {
+ StringRef c = T.getSingleStringRef();
+ if (c.equals(StringRef(MAI->getSeparatorString())))
+ return;
+ if (c.startswith(StringRef("//"))) {
+ ExplicitCommentToEmit.append("\t");
+ ExplicitCommentToEmit.append(MAI->getCommentString());
+ // drop //
+ ExplicitCommentToEmit.append(c.slice(2, c.size()).str());
+ } else if (c.startswith(StringRef("/*"))) {
+ size_t p = 2, len = c.size() - 2;
+ // emit each line in comment as separate newline.
+ do {
+ size_t newp = std::min(len, c.find_first_of("\r\n", p));
+ ExplicitCommentToEmit.append("\t");
+ ExplicitCommentToEmit.append(MAI->getCommentString());
+ ExplicitCommentToEmit.append(c.slice(p, newp).str());
+ // If we have another line in this comment add line
+ if (newp < len)
+ ExplicitCommentToEmit.append("\n");
+ p = newp + 1;
+ } while (p < len);
+ } else if (c.startswith(StringRef(MAI->getCommentString()))) {
+ ExplicitCommentToEmit.append("\t");
+ ExplicitCommentToEmit.append(c.str());
+ } else if (c.front() == '#') {
+
+ ExplicitCommentToEmit.append("\t");
+ ExplicitCommentToEmit.append(MAI->getCommentString());
+ ExplicitCommentToEmit.append(c.slice(1, c.size()).str());
+ } else
+ assert(false && "Unexpected Assembly Comment");
+ // full line comments immediately output
+ if (c.back() == '\n')
+ emitExplicitComments();
+}
+
+void MCAsmStreamer::emitExplicitComments() {
+ StringRef Comments = ExplicitCommentToEmit;
+ if (!Comments.empty())
+ OS << Comments;
+ ExplicitCommentToEmit.clear();
+}
+
+void MCAsmStreamer::ChangeSection(MCSection *Section,
+ const MCExpr *Subsection) {
+ assert(Section && "Cannot switch to a null section!");
+ if (MCTargetStreamer *TS = getTargetStreamer()) {
+ TS->changeSection(getCurrentSectionOnly(), Section, Subsection, OS);
+ } else {
+ Section->PrintSwitchToSection(
+ *MAI, getContext().getObjectFileInfo()->getTargetTriple(), OS,
+ Subsection);
+ }
+}
+
+void MCAsmStreamer::emitELFSymverDirective(StringRef AliasName,
+ const MCSymbol *Aliasee) {
+ OS << ".symver ";
+ Aliasee->print(OS, MAI);
+ OS << ", " << AliasName;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitLabel(MCSymbol *Symbol, SMLoc Loc) {
+ MCStreamer::EmitLabel(Symbol, Loc);
+
+ Symbol->print(OS, MAI);
+ OS << 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 (const MCSymbol *Arg : Args) {
+ if (!IsFirst)
+ OS << ", ";
+ IsFirst = false;
+ Arg->print(OS, MAI);
+ }
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
+ 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;
+ }
+ 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 << '"';
+ }
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitDataRegion(MCDataRegionType Kind) {
+ if (!MAI->doesSupportDataRegionDirectives())
+ return;
+ switch (Kind) {
+ case MCDR_DataRegion: OS << "\t.data_region"; break;
+ case MCDR_DataRegionJT8: OS << "\t.data_region jt8"; break;
+ case MCDR_DataRegionJT16: OS << "\t.data_region jt16"; break;
+ case MCDR_DataRegionJT32: OS << "\t.data_region jt32"; break;
+ case MCDR_DataRegionEnd: OS << "\t.end_data_region"; break;
+ }
+ EmitEOL();
+}
+
+static const char *getVersionMinDirective(MCVersionMinType Type) {
+ switch (Type) {
+ case MCVM_WatchOSVersionMin: return ".watchos_version_min";
+ case MCVM_TvOSVersionMin: return ".tvos_version_min";
+ case MCVM_IOSVersionMin: return ".ios_version_min";
+ case MCVM_OSXVersionMin: return ".macosx_version_min";
+ }
+ llvm_unreachable("Invalid MC version min type");
+}
+
+static void EmitSDKVersionSuffix(raw_ostream &OS,
+ const VersionTuple &SDKVersion) {
+ if (SDKVersion.empty())
+ return;
+ OS << '\t' << "sdk_version " << SDKVersion.getMajor();
+ if (auto Minor = SDKVersion.getMinor()) {
+ OS << ", " << *Minor;
+ if (auto Subminor = SDKVersion.getSubminor()) {
+ OS << ", " << *Subminor;
+ }
+ }
+}
+
+void MCAsmStreamer::EmitVersionMin(MCVersionMinType Type, unsigned Major,
+ unsigned Minor, unsigned Update,
+ VersionTuple SDKVersion) {
+ OS << '\t' << getVersionMinDirective(Type) << ' ' << Major << ", " << Minor;
+ if (Update)
+ OS << ", " << Update;
+ EmitSDKVersionSuffix(OS, SDKVersion);
+ EmitEOL();
+}
+
+static const char *getPlatformName(MachO::PlatformType Type) {
+ switch (Type) {
+ case MachO::PLATFORM_MACOS: return "macos";
+ case MachO::PLATFORM_IOS: return "ios";
+ case MachO::PLATFORM_TVOS: return "tvos";
+ case MachO::PLATFORM_WATCHOS: return "watchos";
+ case MachO::PLATFORM_BRIDGEOS: return "bridgeos";
+ case MachO::PLATFORM_MACCATALYST: return "macCatalyst";
+ case MachO::PLATFORM_IOSSIMULATOR: return "iossimulator";
+ case MachO::PLATFORM_TVOSSIMULATOR: return "tvossimulator";
+ case MachO::PLATFORM_WATCHOSSIMULATOR: return "watchossimulator";
+ }
+ llvm_unreachable("Invalid Mach-O platform type");
+}
+
+void MCAsmStreamer::EmitBuildVersion(unsigned Platform, unsigned Major,
+ unsigned Minor, unsigned Update,
+ VersionTuple SDKVersion) {
+ const char *PlatformName = getPlatformName((MachO::PlatformType)Platform);
+ OS << "\t.build_version " << PlatformName << ", " << Major << ", " << Minor;
+ if (Update)
+ OS << ", " << Update;
+ EmitSDKVersionSuffix(OS, SDKVersion);
+ 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()) {
+ OS << '\t';
+ Func->print(OS, MAI);
+ }
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
+ // Do not emit a .set on inlined target assignments.
+ bool EmitSet = true;
+ if (auto *E = dyn_cast<MCTargetExpr>(Value))
+ if (E->inlineAssignedExpr())
+ EmitSet = false;
+ if (EmitSet) {
+ OS << ".set ";
+ Symbol->print(OS, MAI);
+ OS << ", ";
+ Value->print(OS, MAI);
+
+ EmitEOL();
+ }
+
+ MCStreamer::EmitAssignment(Symbol, Value);
+}
+
+void MCAsmStreamer::EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) {
+ OS << ".weakref ";
+ Alias->print(OS, MAI);
+ OS << ", ";
+ Symbol->print(OS, MAI);
+ EmitEOL();
+}
+
+bool MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
+ MCSymbolAttr Attribute) {
+ switch (Attribute) {
+ case MCSA_Invalid: llvm_unreachable("Invalid symbol attribute");
+ case MCSA_ELF_TypeFunction: /// .type _foo, STT_FUNC # aka @function
+ case MCSA_ELF_TypeIndFunction: /// .type _foo, STT_GNU_IFUNC
+ case MCSA_ELF_TypeObject: /// .type _foo, STT_OBJECT # aka @object
+ case MCSA_ELF_TypeTLS: /// .type _foo, STT_TLS # aka @tls_object
+ 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
+ if (!MAI->hasDotTypeDotSizeDirective())
+ return false; // Symbol attribute not supported
+ OS << "\t.type\t";
+ Symbol->print(OS, MAI);
+ OS << ',' << ((MAI->getCommentString()[0] != '@') ? '@' : '%');
+ switch (Attribute) {
+ 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_TypeTLS: OS << "tls_object"; break;
+ case MCSA_ELF_TypeCommon: OS << "common"; break;
+ case MCSA_ELF_TypeNoType: OS << "notype"; break;
+ case MCSA_ELF_TypeGnuUniqueObject: OS << "gnu_unique_object"; break;
+ }
+ EmitEOL();
+ return true;
+ case MCSA_Global: // .globl/.global
+ 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:
+ if (!MAI->hasNoDeadStrip())
+ return false;
+ OS << "\t.no_dead_strip\t";
+ break;
+ case MCSA_SymbolResolver: OS << "\t.symbol_resolver\t"; break;
+ case MCSA_AltEntry: OS << "\t.alt_entry\t"; break;
+ case MCSA_PrivateExtern:
+ OS << "\t.private_extern\t";
+ break;
+ case MCSA_Protected: OS << "\t.protected\t"; break;
+ case MCSA_Reference: OS << "\t.reference\t"; break;
+ case MCSA_Weak: OS << MAI->getWeakDirective(); break;
+ case MCSA_WeakDefinition:
+ OS << "\t.weak_definition\t";
+ break;
+ // .weak_reference
+ case MCSA_WeakReference: OS << MAI->getWeakRefDirective(); break;
+ case MCSA_WeakDefAutoPrivate: OS << "\t.weak_def_can_be_hidden\t"; break;
+ case MCSA_Cold:
+ // Assemblers currently do not support a .cold directive.
+ return false;
+ }
+
+ Symbol->print(OS, MAI);
+ EmitEOL();
+
+ return true;
+}
+
+void MCAsmStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
+ OS << ".desc" << ' ';
+ Symbol->print(OS, MAI);
+ OS << ',' << DescValue;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitSyntaxDirective() {
+ if (MAI->getAssemblerDialect() == 1) {
+ OS << "\t.intel_syntax noprefix";
+ EmitEOL();
+ }
+ // FIXME: Currently emit unprefix'ed registers.
+ // The intel_syntax directive has one optional argument
+ // with may have a value of prefix or noprefix.
+}
+
+void MCAsmStreamer::BeginCOFFSymbolDef(const MCSymbol *Symbol) {
+ OS << "\t.def\t ";
+ Symbol->print(OS, MAI);
+ OS << ';';
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCOFFSymbolStorageClass (int StorageClass) {
+ OS << "\t.scl\t" << StorageClass << ';';
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCOFFSymbolType (int Type) {
+ OS << "\t.type\t" << Type << ';';
+ EmitEOL();
+}
+
+void MCAsmStreamer::EndCOFFSymbolDef() {
+ OS << "\t.endef";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCOFFSafeSEH(MCSymbol const *Symbol) {
+ OS << "\t.safeseh\t";
+ Symbol->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCOFFSymbolIndex(MCSymbol const *Symbol) {
+ OS << "\t.symidx\t";
+ Symbol->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCOFFSectionIndex(MCSymbol const *Symbol) {
+ OS << "\t.secidx\t";
+ Symbol->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol, uint64_t Offset) {
+ OS << "\t.secrel32\t";
+ Symbol->print(OS, MAI);
+ if (Offset != 0)
+ OS << '+' << Offset;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCOFFImgRel32(MCSymbol const *Symbol, int64_t Offset) {
+ OS << "\t.rva\t";
+ Symbol->print(OS, MAI);
+ if (Offset > 0)
+ OS << '+' << Offset;
+ else if (Offset < 0)
+ OS << '-' << -Offset;
+ EmitEOL();
+}
+
+void MCAsmStreamer::emitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
+ assert(MAI->hasDotTypeDotSizeDirective());
+ OS << "\t.size\t";
+ Symbol->print(OS, MAI);
+ OS << ", ";
+ Value->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment) {
+ OS << "\t.comm\t";
+ Symbol->print(OS, MAI);
+ OS << ',' << Size;
+
+ if (ByteAlignment != 0) {
+ if (MAI->getCOMMDirectiveAlignmentIsInBytes())
+ OS << ',' << ByteAlignment;
+ else
+ OS << ',' << Log2_32(ByteAlignment);
+ }
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlign) {
+ OS << "\t.lcomm\t";
+ Symbol->print(OS, MAI);
+ OS << ',' << Size;
+
+ if (ByteAlign > 1) {
+ 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(MCSection *Section, MCSymbol *Symbol,
+ uint64_t Size, unsigned ByteAlignment,
+ SMLoc Loc) {
+ if (Symbol)
+ AssignFragment(Symbol, &Section->getDummyFragment());
+
+ // Note: a .zerofill directive does not switch sections.
+ OS << ".zerofill ";
+
+ assert(Section->getVariant() == MCSection::SV_MachO &&
+ ".zerofill is a Mach-O specific directive");
+ // This is a mach-o specific directive.
+
+ const MCSectionMachO *MOSection = ((const MCSectionMachO*)Section);
+ OS << MOSection->getSegmentName() << "," << MOSection->getSectionName();
+
+ if (Symbol) {
+ OS << ',';
+ Symbol->print(OS, MAI);
+ OS << ',' << Size;
+ if (ByteAlignment != 0)
+ OS << ',' << Log2_32(ByteAlignment);
+ }
+ EmitEOL();
+}
+
+// .tbss sym, size, align
+// This depends that the symbol has already been mangled from the original,
+// e.g. _a.
+void MCAsmStreamer::EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol,
+ uint64_t Size, unsigned ByteAlignment) {
+ AssignFragment(Symbol, &Section->getDummyFragment());
+
+ assert(Symbol && "Symbol shouldn't be NULL!");
+ // Instead of using the Section we'll just use the shortcut.
+
+ assert(Section->getVariant() == MCSection::SV_MachO &&
+ ".zerofill is a Mach-O specific directive");
+ // This is a mach-o specific directive and section.
+
+ OS << ".tbss ";
+ Symbol->print(OS, MAI);
+ OS << ", " << Size;
+
+ // Output align if we have it. We default to 1 so don't bother printing
+ // that.
+ if (ByteAlignment > 1) OS << ", " << Log2_32(ByteAlignment);
+
+ EmitEOL();
+}
+
+static inline char toOctal(int X) { return (X&7)+'0'; }
+
+static void PrintQuotedString(StringRef Data, raw_ostream &OS) {
+ OS << '"';
+
+ for (unsigned i = 0, e = Data.size(); i != e; ++i) {
+ unsigned char C = Data[i];
+ if (C == '"' || C == '\\') {
+ OS << '\\' << (char)C;
+ continue;
+ }
+
+ if (isPrint((unsigned char)C)) {
+ OS << (char)C;
+ continue;
+ }
+
+ switch (C) {
+ case '\b': OS << "\\b"; break;
+ case '\f': OS << "\\f"; break;
+ case '\n': OS << "\\n"; break;
+ case '\r': OS << "\\r"; break;
+ case '\t': OS << "\\t"; break;
+ default:
+ OS << '\\';
+ OS << toOctal(C >> 6);
+ OS << toOctal(C >> 3);
+ OS << toOctal(C >> 0);
+ break;
+ }
+ }
+
+ OS << '"';
+}
+
+void MCAsmStreamer::EmitBytes(StringRef Data) {
+ assert(getCurrentSectionOnly() &&
+ "Cannot emit contents before setting section!");
+ if (Data.empty()) return;
+
+ // If only single byte is provided or no ascii or asciz directives is
+ // supported, emit as vector of 8bits data.
+ if (Data.size() == 1 ||
+ !(MAI->getAscizDirective() || MAI->getAsciiDirective())) {
+ if (MCTargetStreamer *TS = getTargetStreamer()) {
+ TS->emitRawBytes(Data);
+ } else {
+ const char *Directive = MAI->getData8bitsDirective();
+ for (const unsigned char C : Data.bytes()) {
+ OS << Directive << (unsigned)C;
+ 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();
+ Data = Data.substr(0, Data.size()-1);
+ } else {
+ OS << MAI->getAsciiDirective();
+ }
+
+ PrintQuotedString(Data, OS);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitBinaryData(StringRef Data) {
+ // This is binary data. Print it in a grid of hex bytes for readability.
+ const size_t Cols = 4;
+ for (size_t I = 0, EI = alignTo(Data.size(), Cols); I < EI; I += Cols) {
+ size_t J = I, EJ = std::min(I + Cols, Data.size());
+ assert(EJ > 0);
+ OS << MAI->getData8bitsDirective();
+ for (; J < EJ - 1; ++J)
+ OS << format("0x%02x", uint8_t(Data[J])) << ", ";
+ OS << format("0x%02x", uint8_t(Data[J]));
+ EmitEOL();
+ }
+}
+
+void MCAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size) {
+ EmitValue(MCConstantExpr::create(Value, getContext()), Size);
+}
+
+void MCAsmStreamer::EmitIntValueInHex(uint64_t Value, unsigned Size) {
+ EmitValue(MCConstantExpr::create(Value, getContext(), true), Size);
+}
+
+void MCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
+ SMLoc Loc) {
+ assert(Size <= 8 && "Invalid size");
+ assert(getCurrentSectionOnly() &&
+ "Cannot emit contents before setting section!");
+ const char *Directive = nullptr;
+ switch (Size) {
+ default: 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.");
+
+ // We couldn't handle the requested integer size so we fallback by breaking
+ // the request down into several, smaller, integers.
+ // Since sizes greater or equal to "Size" are invalid, we use the greatest
+ // power of 2 that is less than "Size" 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
+ // Size.
+ unsigned EmissionSize = PowerOf2Floor(std::min(Remaining, Size - 1));
+ // 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;
+ }
+
+ assert(Directive && "Invalid size for machine code value!");
+ OS << Directive;
+ if (MCTargetStreamer *TS = getTargetStreamer()) {
+ TS->emitValue(Value);
+ } else {
+ Value->print(OS, MAI);
+ EmitEOL();
+ }
+}
+
+void MCAsmStreamer::EmitULEB128Value(const MCExpr *Value) {
+ int64_t IntValue;
+ if (Value->evaluateAsAbsolute(IntValue)) {
+ EmitULEB128IntValue(IntValue);
+ return;
+ }
+ OS << "\t.uleb128 ";
+ Value->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitSLEB128Value(const MCExpr *Value) {
+ int64_t IntValue;
+ if (Value->evaluateAsAbsolute(IntValue)) {
+ EmitSLEB128IntValue(IntValue);
+ return;
+ }
+ OS << "\t.sleb128 ";
+ Value->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitDTPRel64Value(const MCExpr *Value) {
+ assert(MAI->getDTPRel64Directive() != nullptr);
+ OS << MAI->getDTPRel64Directive();
+ Value->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitDTPRel32Value(const MCExpr *Value) {
+ assert(MAI->getDTPRel32Directive() != nullptr);
+ OS << MAI->getDTPRel32Directive();
+ Value->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitTPRel64Value(const MCExpr *Value) {
+ assert(MAI->getTPRel64Directive() != nullptr);
+ OS << MAI->getTPRel64Directive();
+ Value->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitTPRel32Value(const MCExpr *Value) {
+ assert(MAI->getTPRel32Directive() != nullptr);
+ OS << MAI->getTPRel32Directive();
+ Value->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitGPRel64Value(const MCExpr *Value) {
+ assert(MAI->getGPRel64Directive() != nullptr);
+ OS << MAI->getGPRel64Directive();
+ Value->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitGPRel32Value(const MCExpr *Value) {
+ assert(MAI->getGPRel32Directive() != nullptr);
+ OS << MAI->getGPRel32Directive();
+ Value->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::emitFill(const MCExpr &NumBytes, uint64_t FillValue,
+ SMLoc Loc) {
+ int64_t IntNumBytes;
+ if (NumBytes.evaluateAsAbsolute(IntNumBytes) && IntNumBytes == 0)
+ return;
+
+ if (const char *ZeroDirective = MAI->getZeroDirective()) {
+ // FIXME: Emit location directives
+ OS << ZeroDirective;
+ NumBytes.print(OS, MAI);
+ if (FillValue != 0)
+ OS << ',' << (int)FillValue;
+ EmitEOL();
+ return;
+ }
+
+ MCStreamer::emitFill(NumBytes, FillValue);
+}
+
+void MCAsmStreamer::emitFill(const MCExpr &NumValues, int64_t Size,
+ int64_t Expr, SMLoc Loc) {
+ // FIXME: Emit location directives
+ OS << "\t.fill\t";
+ NumValues.print(OS, MAI);
+ OS << ", " << Size << ", 0x";
+ OS.write_hex(truncateToSize(Expr, 4));
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitValueToAlignment(unsigned ByteAlignment, int64_t Value,
+ unsigned ValueSize,
+ unsigned MaxBytesToEmit) {
+ // Some assemblers don't support non-power of two alignments, so we always
+ // 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 << "\t.p2align\t";
+ break;
+ case 2:
+ OS << ".p2alignw ";
+ break;
+ case 4:
+ OS << ".p2alignl ";
+ break;
+ case 8:
+ llvm_unreachable("Unsupported alignment size!");
+ }
+
+ OS << Log2_32(ByteAlignment);
+
+ if (Value || MaxBytesToEmit) {
+ OS << ", 0x";
+ OS.write_hex(truncateToSize(Value, ValueSize));
+
+ if (MaxBytesToEmit)
+ OS << ", " << MaxBytesToEmit;
+ }
+ EmitEOL();
+ return;
+ }
+
+ // Non-power of two alignment. This is not widely supported by assemblers.
+ // FIXME: Parameterize this based on MAI.
+ switch (ValueSize) {
+ default: llvm_unreachable("Invalid size for machine code value!");
+ case 1: OS << ".balign"; break;
+ case 2: OS << ".balignw"; break;
+ case 4: OS << ".balignl"; break;
+ case 8: llvm_unreachable("Unsupported alignment size!");
+ }
+
+ OS << ' ' << ByteAlignment;
+ OS << ", " << truncateToSize(Value, ValueSize);
+ if (MaxBytesToEmit)
+ OS << ", " << MaxBytesToEmit;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCodeAlignment(unsigned ByteAlignment,
+ unsigned MaxBytesToEmit) {
+ // Emit with a text fill value.
+ EmitValueToAlignment(ByteAlignment, MAI->getTextAlignFillValue(),
+ 1, MaxBytesToEmit);
+}
+
+void MCAsmStreamer::emitValueToOffset(const MCExpr *Offset,
+ unsigned char Value,
+ SMLoc Loc) {
+ // FIXME: Verify that Offset is associated with the current section.
+ OS << ".org ";
+ Offset->print(OS, MAI);
+ OS << ", " << (unsigned)Value;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitFileDirective(StringRef Filename) {
+ assert(MAI->hasSingleParameterDotFile());
+ OS << "\t.file\t";
+ PrintQuotedString(Filename, OS);
+ EmitEOL();
+}
+
+static void printDwarfFileDirective(unsigned FileNo, StringRef Directory,
+ StringRef Filename,
+ Optional<MD5::MD5Result> Checksum,
+ Optional<StringRef> Source,
+ bool UseDwarfDirectory,
+ raw_svector_ostream &OS) {
+ SmallString<128> FullPathName;
+
+ if (!UseDwarfDirectory && !Directory.empty()) {
+ if (sys::path::is_absolute(Filename))
+ Directory = "";
+ else {
+ FullPathName = Directory;
+ sys::path::append(FullPathName, Filename);
+ Directory = "";
+ Filename = FullPathName;
+ }
+ }
+
+ OS << "\t.file\t" << FileNo << ' ';
+ if (!Directory.empty()) {
+ PrintQuotedString(Directory, OS);
+ OS << ' ';
+ }
+ PrintQuotedString(Filename, OS);
+ if (Checksum)
+ OS << " md5 0x" << Checksum->digest();
+ if (Source) {
+ OS << " source ";
+ PrintQuotedString(*Source, OS);
+ }
+}
+
+Expected<unsigned> MCAsmStreamer::tryEmitDwarfFileDirective(
+ unsigned FileNo, StringRef Directory, StringRef Filename,
+ Optional<MD5::MD5Result> Checksum, Optional<StringRef> Source, unsigned CUID) {
+ assert(CUID == 0 && "multiple CUs not supported by MCAsmStreamer");
+
+ MCDwarfLineTable &Table = getContext().getMCDwarfLineTable(CUID);
+ unsigned NumFiles = Table.getMCDwarfFiles().size();
+ Expected<unsigned> FileNoOrErr =
+ Table.tryGetFile(Directory, Filename, Checksum, Source,
+ getContext().getDwarfVersion(), FileNo);
+ if (!FileNoOrErr)
+ return FileNoOrErr.takeError();
+ FileNo = FileNoOrErr.get();
+ if (NumFiles == Table.getMCDwarfFiles().size())
+ return FileNo;
+
+ SmallString<128> Str;
+ raw_svector_ostream OS1(Str);
+ printDwarfFileDirective(FileNo, Directory, Filename, Checksum, Source,
+ UseDwarfDirectory, OS1);
+
+ if (MCTargetStreamer *TS = getTargetStreamer())
+ TS->emitDwarfFileDirective(OS1.str());
+ else
+ EmitRawText(OS1.str());
+
+ return FileNo;
+}
+
+void MCAsmStreamer::emitDwarfFile0Directive(StringRef Directory,
+ StringRef Filename,
+ Optional<MD5::MD5Result> Checksum,
+ Optional<StringRef> Source,
+ unsigned CUID) {
+ assert(CUID == 0);
+ // .file 0 is new for DWARF v5.
+ if (getContext().getDwarfVersion() < 5)
+ return;
+ // Inform MCDwarf about the root file.
+ getContext().setMCLineTableRootFile(CUID, Directory, Filename, Checksum,
+ Source);
+
+ SmallString<128> Str;
+ raw_svector_ostream OS1(Str);
+ printDwarfFileDirective(0, Directory, Filename, Checksum, Source,
+ UseDwarfDirectory, OS1);
+
+ if (MCTargetStreamer *TS = getTargetStreamer())
+ TS->emitDwarfFileDirective(OS1.str());
+ else
+ EmitRawText(OS1.str());
+}
+
+void MCAsmStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
+ unsigned Column, unsigned Flags,
+ unsigned Isa,
+ unsigned Discriminator,
+ StringRef FileName) {
+ OS << "\t.loc\t" << FileNo << " " << Line << " " << Column;
+ if (MAI->supportsExtendedDwarfLocDirective()) {
+ if (Flags & DWARF2_FLAG_BASIC_BLOCK)
+ OS << " basic_block";
+ if (Flags & DWARF2_FLAG_PROLOGUE_END)
+ OS << " prologue_end";
+ if (Flags & DWARF2_FLAG_EPILOGUE_BEGIN)
+ OS << " epilogue_begin";
+
+ unsigned OldFlags = getContext().getCurrentDwarfLoc().getFlags();
+ if ((Flags & DWARF2_FLAG_IS_STMT) != (OldFlags & DWARF2_FLAG_IS_STMT)) {
+ OS << " is_stmt ";
+
+ if (Flags & DWARF2_FLAG_IS_STMT)
+ OS << "1";
+ else
+ OS << "0";
+ }
+
+ if (Isa)
+ OS << " isa " << Isa;
+ if (Discriminator)
+ OS << " discriminator " << Discriminator;
+ }
+
+ if (IsVerboseAsm) {
+ OS.PadToColumn(MAI->getCommentColumn());
+ OS << MAI->getCommentString() << ' ' << FileName << ':'
+ << Line << ':' << Column;
+ }
+ EmitEOL();
+ this->MCStreamer::EmitDwarfLocDirective(FileNo, Line, Column, Flags,
+ Isa, Discriminator, FileName);
+}
+
+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);
+}
+
+bool MCAsmStreamer::EmitCVFileDirective(unsigned FileNo, StringRef Filename,
+ ArrayRef<uint8_t> Checksum,
+ unsigned ChecksumKind) {
+ if (!getContext().getCVContext().addFile(*this, FileNo, Filename, Checksum,
+ ChecksumKind))
+ return false;
+
+ OS << "\t.cv_file\t" << FileNo << ' ';
+ PrintQuotedString(Filename, OS);
+
+ if (!ChecksumKind) {
+ EmitEOL();
+ return true;
+ }
+
+ OS << ' ';
+ PrintQuotedString(toHex(Checksum), OS);
+ OS << ' ' << ChecksumKind;
+
+ EmitEOL();
+ return true;
+}
+
+bool MCAsmStreamer::EmitCVFuncIdDirective(unsigned FuncId) {
+ OS << "\t.cv_func_id " << FuncId << '\n';
+ return MCStreamer::EmitCVFuncIdDirective(FuncId);
+}
+
+bool MCAsmStreamer::EmitCVInlineSiteIdDirective(unsigned FunctionId,
+ unsigned IAFunc,
+ unsigned IAFile,
+ unsigned IALine, unsigned IACol,
+ SMLoc Loc) {
+ OS << "\t.cv_inline_site_id " << FunctionId << " within " << IAFunc
+ << " inlined_at " << IAFile << ' ' << IALine << ' ' << IACol << '\n';
+ return MCStreamer::EmitCVInlineSiteIdDirective(FunctionId, IAFunc, IAFile,
+ IALine, IACol, Loc);
+}
+
+void MCAsmStreamer::EmitCVLocDirective(unsigned FunctionId, unsigned FileNo,
+ unsigned Line, unsigned Column,
+ bool PrologueEnd, bool IsStmt,
+ StringRef FileName, SMLoc Loc) {
+ // Validate the directive.
+ if (!checkCVLocSection(FunctionId, FileNo, Loc))
+ return;
+
+ OS << "\t.cv_loc\t" << FunctionId << " " << FileNo << " " << Line << " "
+ << Column;
+ if (PrologueEnd)
+ OS << " prologue_end";
+
+ if (IsStmt)
+ OS << " is_stmt 1";
+
+ if (IsVerboseAsm) {
+ OS.PadToColumn(MAI->getCommentColumn());
+ OS << MAI->getCommentString() << ' ' << FileName << ':' << Line << ':'
+ << Column;
+ }
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCVLinetableDirective(unsigned FunctionId,
+ const MCSymbol *FnStart,
+ const MCSymbol *FnEnd) {
+ OS << "\t.cv_linetable\t" << FunctionId << ", ";
+ FnStart->print(OS, MAI);
+ OS << ", ";
+ FnEnd->print(OS, MAI);
+ EmitEOL();
+ this->MCStreamer::EmitCVLinetableDirective(FunctionId, FnStart, FnEnd);
+}
+
+void MCAsmStreamer::EmitCVInlineLinetableDirective(unsigned PrimaryFunctionId,
+ unsigned SourceFileId,
+ unsigned SourceLineNum,
+ const MCSymbol *FnStartSym,
+ const MCSymbol *FnEndSym) {
+ OS << "\t.cv_inline_linetable\t" << PrimaryFunctionId << ' ' << SourceFileId
+ << ' ' << SourceLineNum << ' ';
+ FnStartSym->print(OS, MAI);
+ OS << ' ';
+ FnEndSym->print(OS, MAI);
+ EmitEOL();
+ this->MCStreamer::EmitCVInlineLinetableDirective(
+ PrimaryFunctionId, SourceFileId, SourceLineNum, FnStartSym, FnEndSym);
+}
+
+void MCAsmStreamer::EmitCVDefRangeDirective(
+ ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
+ StringRef FixedSizePortion) {
+ OS << "\t.cv_def_range\t";
+ for (std::pair<const MCSymbol *, const MCSymbol *> Range : Ranges) {
+ OS << ' ';
+ Range.first->print(OS, MAI);
+ OS << ' ';
+ Range.second->print(OS, MAI);
+ }
+ OS << ", ";
+ PrintQuotedString(FixedSizePortion, OS);
+ EmitEOL();
+ this->MCStreamer::EmitCVDefRangeDirective(Ranges, FixedSizePortion);
+}
+
+void MCAsmStreamer::EmitCVStringTableDirective() {
+ OS << "\t.cv_stringtable";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCVFileChecksumsDirective() {
+ OS << "\t.cv_filechecksums";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCVFileChecksumOffsetDirective(unsigned FileNo) {
+ OS << "\t.cv_filechecksumoffset\t" << FileNo;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCVFPOData(const MCSymbol *ProcSym, SMLoc L) {
+ OS << "\t.cv_fpo_data\t";
+ ProcSym->print(OS, MAI);
+ EmitEOL();
+}
+
+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";
+ if (Debug)
+ OS << ", .debug_frame";
+ } else if (Debug) {
+ OS << ".debug_frame";
+ }
+
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
+ OS << "\t.cfi_startproc";
+ if (Frame.IsSimple)
+ OS << " simple";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
+ MCStreamer::EmitCFIEndProcImpl(Frame);
+ OS << "\t.cfi_endproc";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitRegisterName(int64_t Register) {
+ if (!MAI->useDwarfRegNumForCFI()) {
+ // User .cfi_* directives can use arbitrary DWARF register numbers, not
+ // just ones that map to LLVM register numbers and have known names.
+ // Fall back to using the original number directly if no name is known.
+ const MCRegisterInfo *MRI = getContext().getRegisterInfo();
+ int LLVMRegister = MRI->getLLVMRegNumFromEH(Register);
+ if (LLVMRegister != -1) {
+ InstPrinter->printRegName(OS, LLVMRegister);
+ return;
+ }
+ }
+ OS << Register;
+}
+
+void MCAsmStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
+ MCStreamer::EmitCFIDefCfa(Register, Offset);
+ OS << "\t.cfi_def_cfa ";
+ EmitRegisterName(Register);
+ OS << ", " << Offset;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
+ MCStreamer::EmitCFIDefCfaOffset(Offset);
+ OS << "\t.cfi_def_cfa_offset " << Offset;
+ EmitEOL();
+}
+
+static void PrintCFIEscape(llvm::formatted_raw_ostream &OS, StringRef Values) {
+ OS << "\t.cfi_escape ";
+ if (!Values.empty()) {
+ size_t e = Values.size() - 1;
+ for (size_t i = 0; i < e; ++i)
+ OS << format("0x%02x", uint8_t(Values[i])) << ", ";
+ OS << format("0x%02x", uint8_t(Values[e]));
+ }
+}
+
+void MCAsmStreamer::EmitCFIEscape(StringRef Values) {
+ MCStreamer::EmitCFIEscape(Values);
+ PrintCFIEscape(OS, Values);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIGnuArgsSize(int64_t Size) {
+ MCStreamer::EmitCFIGnuArgsSize(Size);
+
+ uint8_t Buffer[16] = { dwarf::DW_CFA_GNU_args_size };
+ unsigned Len = encodeULEB128(Size, Buffer + 1) + 1;
+
+ PrintCFIEscape(OS, StringRef((const char *)&Buffer[0], Len));
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIDefCfaRegister(int64_t Register) {
+ MCStreamer::EmitCFIDefCfaRegister(Register);
+ OS << "\t.cfi_def_cfa_register ";
+ EmitRegisterName(Register);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
+ this->MCStreamer::EmitCFIOffset(Register, Offset);
+ OS << "\t.cfi_offset ";
+ EmitRegisterName(Register);
+ OS << ", " << Offset;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIPersonality(const MCSymbol *Sym,
+ unsigned Encoding) {
+ MCStreamer::EmitCFIPersonality(Sym, Encoding);
+ OS << "\t.cfi_personality " << Encoding << ", ";
+ Sym->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
+ MCStreamer::EmitCFILsda(Sym, Encoding);
+ OS << "\t.cfi_lsda " << Encoding << ", ";
+ Sym->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIRememberState() {
+ MCStreamer::EmitCFIRememberState();
+ OS << "\t.cfi_remember_state";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIRestoreState() {
+ MCStreamer::EmitCFIRestoreState();
+ OS << "\t.cfi_restore_state";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIRestore(int64_t Register) {
+ MCStreamer::EmitCFIRestore(Register);
+ OS << "\t.cfi_restore ";
+ EmitRegisterName(Register);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFISameValue(int64_t Register) {
+ MCStreamer::EmitCFISameValue(Register);
+ OS << "\t.cfi_same_value ";
+ EmitRegisterName(Register);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) {
+ MCStreamer::EmitCFIRelOffset(Register, Offset);
+ OS << "\t.cfi_rel_offset ";
+ EmitRegisterName(Register);
+ OS << ", " << Offset;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
+ MCStreamer::EmitCFIAdjustCfaOffset(Adjustment);
+ OS << "\t.cfi_adjust_cfa_offset " << Adjustment;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFISignalFrame() {
+ MCStreamer::EmitCFISignalFrame();
+ OS << "\t.cfi_signal_frame";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIUndefined(int64_t Register) {
+ MCStreamer::EmitCFIUndefined(Register);
+ OS << "\t.cfi_undefined " << Register;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
+ MCStreamer::EmitCFIRegister(Register1, Register2);
+ OS << "\t.cfi_register " << Register1 << ", " << Register2;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIWindowSave() {
+ MCStreamer::EmitCFIWindowSave();
+ OS << "\t.cfi_window_save";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFINegateRAState() {
+ MCStreamer::EmitCFINegateRAState();
+ OS << "\t.cfi_negate_ra_state";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIReturnColumn(int64_t Register) {
+ MCStreamer::EmitCFIReturnColumn(Register);
+ OS << "\t.cfi_return_column " << Register;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIBKeyFrame() {
+ MCStreamer::EmitCFIBKeyFrame();
+ OS << "\t.cfi_b_key_frame";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinCFIStartProc(const MCSymbol *Symbol, SMLoc Loc) {
+ MCStreamer::EmitWinCFIStartProc(Symbol, Loc);
+
+ OS << ".seh_proc ";
+ Symbol->print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinCFIEndProc(SMLoc Loc) {
+ MCStreamer::EmitWinCFIEndProc(Loc);
+
+ OS << "\t.seh_endproc";
+ EmitEOL();
+}
+
+// TODO: Implement
+void MCAsmStreamer::EmitWinCFIFuncletOrFuncEnd(SMLoc Loc) {
+}
+
+void MCAsmStreamer::EmitWinCFIStartChained(SMLoc Loc) {
+ MCStreamer::EmitWinCFIStartChained(Loc);
+
+ OS << "\t.seh_startchained";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinCFIEndChained(SMLoc Loc) {
+ MCStreamer::EmitWinCFIEndChained(Loc);
+
+ OS << "\t.seh_endchained";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinEHHandler(const MCSymbol *Sym, bool Unwind,
+ bool Except, SMLoc Loc) {
+ MCStreamer::EmitWinEHHandler(Sym, Unwind, Except, Loc);
+
+ OS << "\t.seh_handler ";
+ Sym->print(OS, MAI);
+ if (Unwind)
+ OS << ", @unwind";
+ if (Except)
+ OS << ", @except";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinEHHandlerData(SMLoc Loc) {
+ MCStreamer::EmitWinEHHandlerData(Loc);
+
+ // 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.
+ WinEH::FrameInfo *CurFrame = getCurrentWinFrameInfo();
+ MCSection *TextSec = &CurFrame->Function->getSection();
+ MCSection *XData = getAssociatedXDataSection(TextSec);
+ SwitchSectionNoChange(XData);
+
+ OS << "\t.seh_handlerdata";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinCFIPushReg(unsigned Register, SMLoc Loc) {
+ MCStreamer::EmitWinCFIPushReg(Register, Loc);
+
+ OS << "\t.seh_pushreg " << Register;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinCFISetFrame(unsigned Register, unsigned Offset,
+ SMLoc Loc) {
+ MCStreamer::EmitWinCFISetFrame(Register, Offset, Loc);
+
+ OS << "\t.seh_setframe " << Register << ", " << Offset;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinCFIAllocStack(unsigned Size, SMLoc Loc) {
+ MCStreamer::EmitWinCFIAllocStack(Size, Loc);
+
+ OS << "\t.seh_stackalloc " << Size;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinCFISaveReg(unsigned Register, unsigned Offset,
+ SMLoc Loc) {
+ MCStreamer::EmitWinCFISaveReg(Register, Offset, Loc);
+
+ OS << "\t.seh_savereg " << Register << ", " << Offset;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinCFISaveXMM(unsigned Register, unsigned Offset,
+ SMLoc Loc) {
+ MCStreamer::EmitWinCFISaveXMM(Register, Offset, Loc);
+
+ OS << "\t.seh_savexmm " << Register << ", " << Offset;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinCFIPushFrame(bool Code, SMLoc Loc) {
+ MCStreamer::EmitWinCFIPushFrame(Code, Loc);
+
+ OS << "\t.seh_pushframe";
+ if (Code)
+ OS << " @code";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitWinCFIEndProlog(SMLoc Loc) {
+ MCStreamer::EmitWinCFIEndProlog(Loc);
+
+ OS << "\t.seh_endprologue";
+ EmitEOL();
+}
+
+void MCAsmStreamer::emitCGProfileEntry(const MCSymbolRefExpr *From,
+ const MCSymbolRefExpr *To,
+ uint64_t Count) {
+ OS << "\t.cg_profile ";
+ From->getSymbol().print(OS, MAI);
+ OS << ", ";
+ To->getSymbol().print(OS, MAI);
+ OS << ", " << Count;
+ EmitEOL();
+}
+
+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);
+
+ // If we have no code emitter, don't emit code.
+ if (!getAssembler().getEmitterPtr())
+ return;
+
+ getAssembler().getEmitter().encodeInstruction(Inst, VecOS, Fixups, STI);
+
+ // If we are showing fixups, create symbolic markers in the encoded
+ // representation. We do this by making a per-bit map to the fixup item index,
+ // then trying to display it as nicely as possible.
+ SmallVector<uint8_t, 64> FixupMap;
+ FixupMap.resize(Code.size() * 8);
+ for (unsigned i = 0, e = Code.size() * 8; i != e; ++i)
+ FixupMap[i] = 0;
+
+ for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
+ MCFixup &F = Fixups[i];
+ const MCFixupKindInfo &Info =
+ getAssembler().getBackend().getFixupKindInfo(F.getKind());
+ for (unsigned j = 0; j != Info.TargetSize; ++j) {
+ unsigned Index = F.getOffset() * 8 + Info.TargetOffset + j;
+ assert(Index < Code.size() * 8 && "Invalid offset in fixup!");
+ FixupMap[Index] = 1 + i;
+ }
+ }
+
+ // FIXME: Note the fixup comments for Thumb2 are completely bogus since the
+ // high order halfword of a 32-bit Thumb2 instruction is emitted first.
+ OS << "encoding: [";
+ for (unsigned i = 0, e = Code.size(); i != e; ++i) {
+ if (i)
+ OS << ',';
+
+ // See if all bits are the same map entry.
+ uint8_t MapEntry = FixupMap[i * 8 + 0];
+ for (unsigned j = 1; j != 8; ++j) {
+ if (FixupMap[i * 8 + j] == MapEntry)
+ continue;
+
+ MapEntry = uint8_t(~0U);
+ break;
+ }
+
+ if (MapEntry != uint8_t(~0U)) {
+ if (MapEntry == 0) {
+ OS << format("0x%02x", uint8_t(Code[i]));
+ } else {
+ if (Code[i]) {
+ // FIXME: Some of the 8 bits require fix up.
+ OS << format("0x%02x", uint8_t(Code[i])) << '\''
+ << char('A' + MapEntry - 1) << '\'';
+ } else
+ OS << char('A' + MapEntry - 1);
+ }
+ } else {
+ // Otherwise, write out in binary.
+ OS << "0b";
+ for (unsigned j = 8; j--;) {
+ unsigned Bit = (Code[i] >> j) & 1;
+
+ unsigned FixupBit;
+ if (MAI->isLittleEndian())
+ FixupBit = i * 8 + j;
+ else
+ FixupBit = i * 8 + (7-j);
+
+ if (uint8_t MapEntry = FixupMap[FixupBit]) {
+ assert(Bit == 0 && "Encoder wrote into fixed up bit!");
+ OS << char('A' + MapEntry - 1);
+ } else
+ OS << Bit;
+ }
+ }
+ }
+ OS << "]\n";
+
+ for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
+ MCFixup &F = Fixups[i];
+ const MCFixupKindInfo &Info =
+ getAssembler().getBackend().getFixupKindInfo(F.getKind());
+ OS << " fixup " << char('A' + i) << " - " << "offset: " << F.getOffset()
+ << ", value: " << *F.getValue() << ", kind: " << Info.Name << "\n";
+ }
+}
+
+void MCAsmStreamer::EmitInstruction(const MCInst &Inst,
+ const MCSubtargetInfo &STI) {
+ assert(getCurrentSectionOnly() &&
+ "Cannot emit contents before setting section!");
+
+ // Show the encoding in a comment if we have a code emitter.
+ AddEncodingComment(Inst, STI);
+
+ // Show the MCInst if enabled.
+ if (ShowInst) {
+ Inst.dump_pretty(GetCommentOS(), InstPrinter.get(), "\n ");
+ GetCommentOS() << "\n";
+ }
+
+ if(getTargetStreamer())
+ getTargetStreamer()->prettyPrintAsm(*InstPrinter, OS, Inst, STI);
+ else
+ InstPrinter->printInst(&Inst, OS, "", STI);
+
+ StringRef Comments = CommentToEmit;
+ if (Comments.size() && Comments.back() != '\n')
+ GetCommentOS() << "\n";
+
+ 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();
+}
+
+bool MCAsmStreamer::EmitRelocDirective(const MCExpr &Offset, StringRef Name,
+ const MCExpr *Expr, SMLoc,
+ const MCSubtargetInfo &STI) {
+ OS << "\t.reloc ";
+ Offset.print(OS, MAI);
+ OS << ", " << Name;
+ if (Expr) {
+ OS << ", ";
+ Expr->print(OS, MAI);
+ }
+ EmitEOL();
+ return false;
+}
+
+void MCAsmStreamer::EmitAddrsig() {
+ OS << "\t.addrsig";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitAddrsigSym(const MCSymbol *Sym) {
+ OS << "\t.addrsig_sym ";
+ Sym->print(OS, MAI);
+ 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::EmitRawTextImpl(StringRef String) {
+ if (!String.empty() && String.back() == '\n')
+ String = String.substr(0, String.size()-1);
+ OS << String;
+ EmitEOL();
+}
+
+void MCAsmStreamer::FinishImpl() {
+ // If we are generating dwarf for assembly source files dump out the sections.
+ if (getContext().getGenDwarfForAssembly())
+ 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.
+ const 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,
+ std::unique_ptr<formatted_raw_ostream> OS,
+ bool isVerboseAsm, bool useDwarfDirectory,
+ MCInstPrinter *IP,
+ std::unique_ptr<MCCodeEmitter> &&CE,
+ std::unique_ptr<MCAsmBackend> &&MAB,
+ bool ShowInst) {
+ return new MCAsmStreamer(Context, std::move(OS), isVerboseAsm,
+ useDwarfDirectory, IP, std::move(CE), std::move(MAB),
+ ShowInst);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-06 04:30:40 +0000