47 std::unique_ptr<formatted_raw_ostream> OSOwner;
50 std::unique_ptr<MCInstPrinter> InstPrinter;
51 std::unique_ptr<MCAssembler> Assembler;
58 unsigned IsVerboseAsm : 1;
59 unsigned ShowInst : 1;
60 unsigned UseDwarfDirectory : 1;
62 void EmitRegisterName(int64_t
Register);
64 void printDwarfFileDirective(
unsigned FileNo,
StringRef Directory,
66 std::optional<MD5::MD5Result> Checksum,
67 std::optional<StringRef> Source,
68 bool UseDwarfDirectory,
74 MCAsmStreamer(
MCContext &Context, std::unique_ptr<formatted_raw_ostream> os,
75 bool isVerboseAsm,
bool useDwarfDirectory,
77 std::unique_ptr<MCAsmBackend> asmbackend,
bool showInst)
79 MAI(Context.getAsmInfo()), InstPrinter(
printer),
82 (asmbackend) ? asmbackend->createObjectWriter(NullStream)
84 CommentStream(CommentToEmit), IsVerboseAsm(isVerboseAsm),
85 ShowInst(showInst), UseDwarfDirectory(useDwarfDirectory) {
88 InstPrinter->setCommentStream(CommentStream);
89 if (Assembler->getBackendPtr())
98 inline void EmitEOL() {
106 EmitCommentsAndEOL();
111 void EmitCommentsAndEOL();
114 bool isVerboseAsm()
const override {
return IsVerboseAsm; }
133 return CommentStream;
150 bool KeepOriginalSym)
override;
157 auto [
Ptr,
Bits] = InstPrinter->getMnemonic(&
MI);
159 "Invalid char pointer for instruction with no mnemonic");
173 unsigned Minor,
unsigned Update,
205 unsigned Lang,
unsigned Reason,
206 unsigned FunctionSize,
bool hasDebug)
override;
211 Align ByteAlignment)
override;
219 Align ByteAlignment)
override;
257 void emitAlignmentDirective(
unsigned ByteAlignment,
258 std::optional<int64_t>
Value,
unsigned ValueSize,
259 unsigned MaxBytesToEmit);
262 unsigned ValueSize = 1,
263 unsigned MaxBytesToEmit = 0)
override;
266 unsigned MaxBytesToEmit = 0)
override;
277 std::optional<MD5::MD5Result> Checksum = std::nullopt,
278 std::optional<StringRef> Source = std::nullopt,
279 unsigned CUID = 0)
override;
281 std::optional<MD5::MD5Result> Checksum,
282 std::optional<StringRef> Source,
283 unsigned CUID = 0)
override;
285 unsigned Flags,
unsigned Isa,
286 unsigned Discriminator,
292 unsigned ChecksumKind)
override;
295 unsigned IAFile,
unsigned IALine,
296 unsigned IACol,
SMLoc Loc)
override;
298 unsigned Column,
bool PrologueEnd,
bool IsStmt,
303 unsigned SourceFileId,
304 unsigned SourceLineNum,
308 void PrintCVDefRangePrefix(
309 ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges);
312 ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
316 ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
320 ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
324 ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
394 std::optional<std::pair<bool, std::string>>
411 const Twine &Comment)
override;
419 unsigned PointerSize)
override;
426void MCAsmStreamer::AddComment(
const Twine &
T,
bool EOL) {
427 if (!IsVerboseAsm)
return;
429 T.toVector(CommentToEmit);
435void MCAsmStreamer::EmitCommentsAndEOL() {
444 "Comment array not newline terminated");
448 size_t Position = Comments.
find(
'\n');
451 Comments = Comments.
substr(Position+1);
452 }
while (!Comments.
empty());
454 CommentToEmit.
clear();
458 assert(Bytes > 0 && Bytes <= 8 &&
"Invalid size!");
459 return Value & ((
uint64_t) (int64_t) -1 >> (64 - Bytes * 8));
462void MCAsmStreamer::emitRawComment(
const Twine &
T,
bool TabPrefix) {
469void MCAsmStreamer::addExplicitComment(
const Twine &
T) {
474 ExplicitCommentToEmit.
append(
"\t");
479 size_t p = 2, len = c.
size() - 2;
483 ExplicitCommentToEmit.
append(
"\t");
488 ExplicitCommentToEmit.
append(
"\n");
492 ExplicitCommentToEmit.
append(
"\t");
494 }
else if (c.
front() ==
'#') {
496 ExplicitCommentToEmit.
append(
"\t");
500 assert(
false &&
"Unexpected Assembly Comment");
502 if (c.
back() ==
'\n')
503 emitExplicitComments();
506void MCAsmStreamer::emitExplicitComments() {
507 StringRef Comments = ExplicitCommentToEmit;
508 if (!Comments.
empty())
510 ExplicitCommentToEmit.
clear();
515 TS->changeSection(getCurrentSection().first, Section, Subsection,
OS);
517 Section->printSwitchToSection(*MAI, getContext().getTargetTriple(),
OS,
523void MCAsmStreamer::emitELFSymverDirective(
const MCSymbol *OriginalSym,
525 bool KeepOriginalSym) {
529 if (!KeepOriginalSym && !
Name.contains(
"@@@"))
548 assert(NbArgs != -1 && ((
size_t)NbArgs) ==
Args.size() &&
"Malformed LOH!");
549 assert(str !=
"" &&
"Invalid LOH name");
563void MCAsmStreamer::emitGNUAttribute(
unsigned Tag,
unsigned Value) {
564 OS <<
"\t.gnu_attribute " <<
Tag <<
", " <<
Value <<
"\n";
579 assert(!
Options.empty() &&
"At least one option is required!");
580 OS <<
"\t.linker_option \"" <<
Options[0] <<
'"';
582 OS <<
", " <<
'"' << Opt <<
'"';
611 if (SDKVersion.
empty())
613 OS <<
'\t' <<
"sdk_version " << SDKVersion.
getMajor();
614 if (
auto Minor = SDKVersion.
getMinor()) {
615 OS <<
", " << *Minor;
617 OS <<
", " << *Subminor;
623 unsigned Minor,
unsigned Update,
627 OS <<
", " << Update;
634#define PLATFORM(platform, id, name, build_name, target, tapi_target, \
636 case MachO::PLATFORM_##platform: \
638#include "llvm/BinaryFormat/MachO.def"
643void MCAsmStreamer::emitBuildVersion(
unsigned Platform,
unsigned Major,
644 unsigned Minor,
unsigned Update,
647 OS <<
"\t.build_version " << PlatformName <<
", " << Major <<
", " << Minor;
649 OS <<
", " << Update;
654void MCAsmStreamer::emitDarwinTargetVariantBuildVersion(
655 unsigned Platform,
unsigned Major,
unsigned Minor,
unsigned Update,
657 emitBuildVersion(Platform, Major, Minor, Update, SDKVersion);
660void MCAsmStreamer::emitThumbFunc(
MCSymbol *Func) {
663 OS <<
"\t.thumb_func";
675 if (
auto *E = dyn_cast<MCTargetExpr>(
Value))
676 if (E->inlineAssignedExpr())
690void MCAsmStreamer::emitConditionalAssignment(
MCSymbol *Symbol,
692 OS <<
".lto_set_conditional ";
699void MCAsmStreamer::emitWeakReference(
MCSymbol *Alias,
const MCSymbol *Symbol) {
707bool MCAsmStreamer::emitSymbolAttribute(
MCSymbol *Symbol,
724 default:
return false;
747 OS <<
"\t.no_dead_strip\t";
752 OS <<
"\t.private_extern\t";
761 OS <<
"\t.weak_definition\t";
775 OS <<
"\t.weak_anti_dep\t";
785void MCAsmStreamer::emitSymbolDesc(
MCSymbol *Symbol,
unsigned DescValue) {
786 OS <<
".desc" <<
' ';
788 OS <<
',' << DescValue;
792void MCAsmStreamer::emitSyntaxDirective() {
794 OS <<
"\t.intel_syntax noprefix";
802void MCAsmStreamer::beginCOFFSymbolDef(
const MCSymbol *Symbol) {
809void MCAsmStreamer::emitCOFFSymbolStorageClass(
int StorageClass) {
814void MCAsmStreamer::emitCOFFSymbolType(
int Type) {
815 OS <<
"\t.type\t" <<
Type <<
';';
819void MCAsmStreamer::endCOFFSymbolDef() {
824void MCAsmStreamer::emitCOFFSafeSEH(
MCSymbol const *Symbol) {
825 OS <<
"\t.safeseh\t";
830void MCAsmStreamer::emitCOFFSymbolIndex(
MCSymbol const *Symbol) {
836void MCAsmStreamer::emitCOFFSectionIndex(
MCSymbol const *Symbol) {
843 OS <<
"\t.secrel32\t";
850void MCAsmStreamer::emitCOFFImgRel32(
MCSymbol const *Symbol, int64_t
Offset) {
863void MCAsmStreamer::emitXCOFFLocalCommonSymbol(
MCSymbol *LabelSym,
868 "We only support writing log base-2 alignment format with XCOFF.");
874 OS <<
',' <<
Log2(Alignment);
885void MCAsmStreamer::emitXCOFFSymbolLinkageWithVisibility(
907 switch (Visibility) {
927 if (cast<MCSymbolXCOFF>(Symbol)->hasRename())
928 emitXCOFFRenameDirective(Symbol,
929 cast<MCSymbolXCOFF>(Symbol)->getSymbolTableName());
932void MCAsmStreamer::emitXCOFFRenameDirective(
const MCSymbol *
Name,
938 for (
char C : Rename) {
948void MCAsmStreamer::emitXCOFFRefDirective(
const MCSymbol *Symbol) {
954void MCAsmStreamer::emitXCOFFExceptDirective(
const MCSymbol *Symbol,
958 unsigned FunctionSize,
962 OS <<
", " << Lang <<
", " << Reason;
967 const char InfoDirective[] =
"\t.info ";
968 const char *Separator =
", ";
969 constexpr int WordSize =
sizeof(
uint32_t);
973 PrintQuotedString(
Name,
OS);
976 size_t MetadataSize =
Metadata.size();
982 if (MetadataSize == 0) {
993 uint32_t PaddingSize = PaddedSize - MetadataSize;
1000 constexpr int WordsPerDirective = 5;
1003 int WordsBeforeNextDirective = 0;
1004 auto PrintWord = [&](
const uint8_t *WordPtr) {
1005 if (WordsBeforeNextDirective-- == 0) {
1007 OS << InfoDirective;
1008 WordsBeforeNextDirective = WordsPerDirective;
1016 for (;
Index + WordSize <= MetadataSize;
Index += WordSize)
1017 PrintWord(
reinterpret_cast<const uint8_t *
>(
Metadata.data()) +
Index);
1023 std::array<uint8_t, WordSize> LastWord = {0};
1025 PrintWord(LastWord.data());
1040 Align ByteAlignment) {
1048 OS <<
',' <<
Log2(ByteAlignment);
1064 if (ByteAlign > 1) {
1069 OS <<
',' << ByteAlign.
value();
1072 OS <<
',' <<
Log2(ByteAlign);
1083 assignFragment(Symbol, &
Section->getDummyFragment());
1089 ".zerofill is a Mach-O specific directive");
1099 OS <<
',' <<
Log2(ByteAlignment);
1109 assignFragment(Symbol, &
Section->getDummyFragment());
1111 assert(Symbol &&
"Symbol shouldn't be NULL!");
1115 ".zerofill is a Mach-O specific directive");
1124 if (ByteAlignment > 1)
1125 OS <<
", " <<
Log2(ByteAlignment);
1131 const auto BeginPtr = Data.begin(), EndPtr = Data.end();
1132 for (
const unsigned char C :
make_range(BeginPtr, EndPtr - 1)) {
1136 return isPrint(Data.back()) || Data.back() == 0;
1143 assert(!Data.empty() &&
"Cannot generate an empty list.");
1144 const auto printCharacterInOctal = [&
OS](
unsigned char C) {
1150 const auto printOneCharacterFor = [printCharacterInOctal](
1151 auto printOnePrintingCharacter) {
1152 return [printCharacterInOctal, printOnePrintingCharacter](
unsigned char C) {
1154 printOnePrintingCharacter(
static_cast<char>(
C));
1157 printCharacterInOctal(
C);
1160 const auto printCharacterList = [Data, &
OS](
const auto &printOneCharacter) {
1161 const auto BeginPtr = Data.begin(), EndPtr = Data.end();
1162 for (
const unsigned char C :
make_range(BeginPtr, EndPtr - 1)) {
1163 printOneCharacter(
C);
1166 printOneCharacter(*(EndPtr - 1));
1170 printCharacterList(printCharacterInOctal);
1173 printCharacterList(printOneCharacterFor([&
OS](
char C) {
1174 const char AsmCharLitBuf[2] = {
'\'',
C};
1175 OS <<
StringRef(AsmCharLitBuf,
sizeof(AsmCharLitBuf));
1186 for (
unsigned char C : Data) {
1193 for (
unsigned char C : Data) {
1194 if (
C ==
'"' ||
C ==
'\\') {
1233void MCAsmStreamer::emitBytes(
StringRef Data) {
1234 assert(getCurrentSectionOnly() &&
1235 "Cannot emit contents before setting section!");
1236 if (Data.empty())
return;
1238 const auto emitAsString = [
this](
StringRef Data) {
1243 Data = Data.substr(0, Data.size() - 1);
1251 "hasPairedDoubleQuoteStringConstants target must support "
1252 "PlainString Directive");
1254 "hasPairedDoubleQuoteStringConstants target must support ByteList "
1256 if (Data.back() == 0) {
1258 Data = Data.substr(0, Data.size() - 1);
1271 PrintQuotedString(Data,
OS);
1276 if (Data.size() != 1 && emitAsString(Data))
1282 TS->emitRawBytes(Data);
1286 for (
const unsigned char C : Data.bytes()) {
1292void MCAsmStreamer::emitBinaryData(
StringRef Data) {
1294 const size_t Cols = 4;
1295 for (
size_t I = 0, EI =
alignTo(Data.size(), Cols);
I < EI;
I += Cols) {
1296 size_t J =
I, EJ = std::min(
I + Cols, Data.size());
1299 for (; J < EJ - 1; ++J)
1300 OS <<
format(
"0x%02x", uint8_t(Data[J])) <<
", ";
1301 OS <<
format(
"0x%02x", uint8_t(Data[J]));
1314void MCAsmStreamer::emitIntValueInHexWithPadding(
uint64_t Value,
1322 assert(getCurrentSectionOnly() &&
1323 "Cannot emit contents before setting section!");
1335 if (!
Value->evaluateAsAbsolute(IntValue))
1350 unsigned ByteOffset =
1351 IsLittleEndian ?
Emitted : (Remaining - EmissionSize);
1352 uint64_t ValueToEmit = IntValue >> (ByteOffset * 8);
1356 uint64_t Shift = 64 - EmissionSize * 8;
1358 std::numeric_limits<unsigned long long>::digits) &&
1359 "undefined behavior");
1360 ValueToEmit &= ~0ULL >> Shift;
1361 emitIntValue(ValueToEmit, EmissionSize);
1370 TS->emitValue(
Value);
1377void MCAsmStreamer::emitULEB128Value(
const MCExpr *
Value) {
1379 if (
Value->evaluateAsAbsolute(IntValue)) {
1380 emitULEB128IntValue(IntValue);
1383 OS <<
"\t.uleb128 ";
1388void MCAsmStreamer::emitSLEB128Value(
const MCExpr *
Value) {
1390 if (
Value->evaluateAsAbsolute(IntValue)) {
1391 emitSLEB128IntValue(IntValue);
1394 OS <<
"\t.sleb128 ";
1399void MCAsmStreamer::emitDTPRel64Value(
const MCExpr *
Value) {
1406void MCAsmStreamer::emitDTPRel32Value(
const MCExpr *
Value) {
1413void MCAsmStreamer::emitTPRel64Value(
const MCExpr *
Value) {
1420void MCAsmStreamer::emitTPRel32Value(
const MCExpr *
Value) {
1427void MCAsmStreamer::emitGPRel64Value(
const MCExpr *
Value) {
1434void MCAsmStreamer::emitGPRel32Value(
const MCExpr *
Value) {
1441void MCAsmStreamer::emitFill(
const MCExpr &NumBytes,
uint64_t FillValue,
1443 int64_t IntNumBytes;
1444 const bool IsAbsolute = NumBytes.evaluateAsAbsolute(IntNumBytes);
1445 if (IsAbsolute && IntNumBytes == 0)
1451 OS << ZeroDirective;
1454 OS <<
',' << (int)FillValue;
1459 "Cannot emit non-absolute expression lengths of fill.");
1460 for (
int i = 0; i < IntNumBytes; ++i) {
1471void MCAsmStreamer::emitFill(
const MCExpr &NumValues, int64_t
Size,
1472 int64_t Expr,
SMLoc Loc) {
1476 OS <<
", " <<
Size <<
", 0x";
1481void MCAsmStreamer::emitAlignmentDirective(
unsigned ByteAlignment,
1482 std::optional<int64_t>
Value,
1484 unsigned MaxBytesToEmit) {
1498 switch (ValueSize) {
1502 OS <<
"\t.p2align\t";
1516 if (
Value.has_value() || MaxBytesToEmit) {
1517 if (
Value.has_value()) {
1525 OS <<
", " << MaxBytesToEmit;
1533 switch (ValueSize) {
1535 case 1:
OS <<
".balign";
break;
1536 case 2:
OS <<
".balignw";
break;
1537 case 4:
OS <<
".balignl";
break;
1542 if (
Value.has_value())
1544 else if (MaxBytesToEmit)
1547 OS <<
", " << MaxBytesToEmit;
1551void MCAsmStreamer::emitValueToAlignment(
Align Alignment, int64_t
Value,
1553 unsigned MaxBytesToEmit) {
1554 emitAlignmentDirective(Alignment.
value(),
Value, ValueSize, MaxBytesToEmit);
1557void MCAsmStreamer::emitCodeAlignment(
Align Alignment,
1559 unsigned MaxBytesToEmit) {
1565 emitAlignmentDirective(Alignment.
value(), std::nullopt, 1, MaxBytesToEmit);
1568void MCAsmStreamer::emitValueToOffset(
const MCExpr *
Offset,
1569 unsigned char Value,
1578void MCAsmStreamer::emitFileDirective(
StringRef Filename) {
1581 PrintQuotedString(Filename,
OS);
1585void MCAsmStreamer::emitFileDirective(
StringRef Filename,
1591 PrintQuotedString(Filename,
OS);
1592 bool useTimeStamp = !TimeStamp.
empty();
1593 bool useCompilerVersion = !CompilerVersion.
empty();
1594 bool useDescription = !Description.
empty();
1595 if (useTimeStamp || useCompilerVersion || useDescription) {
1598 PrintQuotedString(TimeStamp,
OS);
1599 if (useCompilerVersion || useDescription) {
1601 if (useCompilerVersion)
1602 PrintQuotedString(CompilerVersion,
OS);
1603 if (useDescription) {
1605 PrintQuotedString(Description,
OS);
1612void MCAsmStreamer::printDwarfFileDirective(
1614 std::optional<MD5::MD5Result> Checksum, std::optional<StringRef> Source,
1618 if (!UseDwarfDirectory && !Directory.
empty()) {
1622 FullPathName = Directory;
1629 OS <<
"\t.file\t" << FileNo <<
' ';
1630 if (!Directory.
empty()) {
1631 PrintQuotedString(Directory,
OS);
1634 PrintQuotedString(Filename,
OS);
1636 OS <<
" md5 0x" << Checksum->digest();
1639 PrintQuotedString(*Source,
OS);
1645 std::optional<MD5::MD5Result> Checksum, std::optional<StringRef> Source,
1647 assert(CUID == 0 &&
"multiple CUs not supported by MCAsmStreamer");
1652 Table.
tryGetFile(Directory, Filename, Checksum, Source,
1656 FileNo = FileNoOrErr.
get();
1666 printDwarfFileDirective(FileNo, Directory, Filename, Checksum, Source,
1667 UseDwarfDirectory, OS1);
1670 TS->emitDwarfFileDirective(OS1.str());
1672 emitRawText(OS1.str());
1677void MCAsmStreamer::emitDwarfFile0Directive(
1679 std::optional<MD5::MD5Result> Checksum, std::optional<StringRef> Source,
1686 getContext().setMCLineTableRootFile(CUID, Directory, Filename, Checksum,
1695 printDwarfFileDirective(0, Directory, Filename, Checksum, Source,
1696 UseDwarfDirectory, OS1);
1699 TS->emitDwarfFileDirective(OS1.str());
1701 emitRawText(OS1.str());
1704void MCAsmStreamer::emitDwarfLocDirective(
unsigned FileNo,
unsigned Line,
1705 unsigned Column,
unsigned Flags,
1706 unsigned Isa,
unsigned Discriminator,
1715 Discriminator, FileName);
1719 OS <<
"\t.loc\t" << FileNo <<
" " <<
Line <<
" " << Column;
1722 OS <<
" basic_block";
1724 OS <<
" prologue_end";
1726 OS <<
" epilogue_begin";
1728 unsigned OldFlags = getContext().getCurrentDwarfLoc().getFlags();
1739 OS <<
" isa " << Isa;
1747 <<
Line <<
':' << Column;
1751 Discriminator, FileName);
1754MCSymbol *MCAsmStreamer::getDwarfLineTableSymbol(
unsigned CUID) {
1760bool MCAsmStreamer::emitCVFileDirective(
unsigned FileNo,
StringRef Filename,
1762 unsigned ChecksumKind) {
1763 if (!getContext().getCVContext().addFile(*
this, FileNo, Filename, Checksum,
1767 OS <<
"\t.cv_file\t" << FileNo <<
' ';
1768 PrintQuotedString(Filename,
OS);
1770 if (!ChecksumKind) {
1776 PrintQuotedString(toHex(Checksum),
OS);
1783bool MCAsmStreamer::emitCVFuncIdDirective(
unsigned FuncId) {
1784 OS <<
"\t.cv_func_id " <<
FuncId <<
'\n';
1788bool MCAsmStreamer::emitCVInlineSiteIdDirective(
unsigned FunctionId,
1791 unsigned IALine,
unsigned IACol,
1793 OS <<
"\t.cv_inline_site_id " <<
FunctionId <<
" within " << IAFunc
1794 <<
" inlined_at " << IAFile <<
' ' << IALine <<
' ' << IACol <<
'\n';
1796 IALine, IACol, Loc);
1799void MCAsmStreamer::emitCVLocDirective(
unsigned FunctionId,
unsigned FileNo,
1800 unsigned Line,
unsigned Column,
1801 bool PrologueEnd,
bool IsStmt,
1804 if (!checkCVLocSection(
FunctionId, FileNo, Loc))
1810 OS <<
" prologue_end";
1823void MCAsmStreamer::emitCVLinetableDirective(
unsigned FunctionId,
1834void MCAsmStreamer::emitCVInlineLinetableDirective(
unsigned PrimaryFunctionId,
1835 unsigned SourceFileId,
1836 unsigned SourceLineNum,
1839 OS <<
"\t.cv_inline_linetable\t" << PrimaryFunctionId <<
' ' << SourceFileId
1840 <<
' ' << SourceLineNum <<
' ';
1846 PrimaryFunctionId, SourceFileId, SourceLineNum, FnStartSym, FnEndSym);
1849void MCAsmStreamer::PrintCVDefRangePrefix(
1850 ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges) {
1851 OS <<
"\t.cv_def_range\t";
1852 for (std::pair<const MCSymbol *, const MCSymbol *>
Range : Ranges) {
1860void MCAsmStreamer::emitCVDefRangeDirective(
1861 ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
1863 PrintCVDefRangePrefix(Ranges);
1864 OS <<
", reg_rel, ";
1870void MCAsmStreamer::emitCVDefRangeDirective(
1871 ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
1873 PrintCVDefRangePrefix(Ranges);
1874 OS <<
", subfield_reg, ";
1879void MCAsmStreamer::emitCVDefRangeDirective(
1880 ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
1882 PrintCVDefRangePrefix(Ranges);
1888void MCAsmStreamer::emitCVDefRangeDirective(
1889 ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
1891 PrintCVDefRangePrefix(Ranges);
1892 OS <<
", frame_ptr_rel, ";
1897void MCAsmStreamer::emitCVStringTableDirective() {
1898 OS <<
"\t.cv_stringtable";
1902void MCAsmStreamer::emitCVFileChecksumsDirective() {
1903 OS <<
"\t.cv_filechecksums";
1907void MCAsmStreamer::emitCVFileChecksumOffsetDirective(
unsigned FileNo) {
1908 OS <<
"\t.cv_filechecksumoffset\t" << FileNo;
1912void MCAsmStreamer::emitCVFPOData(
const MCSymbol *ProcSym,
SMLoc L) {
1913 OS <<
"\t.cv_fpo_data\t";
1918void MCAsmStreamer::emitIdent(
StringRef IdentString) {
1921 PrintQuotedString(IdentString,
OS);
1925void MCAsmStreamer::emitCFISections(
bool EH,
bool Debug) {
1927 OS <<
"\t.cfi_sections ";
1931 OS <<
", .debug_frame";
1933 OS <<
".debug_frame";
1940 OS <<
"\t.cfi_startproc";
1948 OS <<
"\t.cfi_endproc";
1952void MCAsmStreamer::EmitRegisterName(int64_t
Register) {
1958 if (std::optional<unsigned> LLVMRegister =
1960 InstPrinter->printRegName(
OS, *LLVMRegister);
1969 OS <<
"\t.cfi_def_cfa ";
1975void MCAsmStreamer::emitCFIDefCfaOffset(int64_t
Offset,
SMLoc Loc) {
1977 OS <<
"\t.cfi_def_cfa_offset " <<
Offset;
1981void MCAsmStreamer::emitCFILLVMDefAspaceCfa(int64_t
Register, int64_t
Offset,
1984 OS <<
"\t.cfi_llvm_def_aspace_cfa ";
1992 OS <<
"\t.cfi_escape ";
1993 if (!Values.
empty()) {
1994 size_t e = Values.
size() - 1;
1995 for (
size_t i = 0; i < e; ++i)
1996 OS <<
format(
"0x%02x", uint8_t(Values[i])) <<
", ";
1997 OS <<
format(
"0x%02x", uint8_t(Values[e]));
2007void MCAsmStreamer::emitCFIGnuArgsSize(int64_t
Size,
SMLoc Loc) {
2010 uint8_t Buffer[16] = { dwarf::DW_CFA_GNU_args_size };
2017void MCAsmStreamer::emitCFIDefCfaRegister(int64_t
Register,
SMLoc Loc) {
2019 OS <<
"\t.cfi_def_cfa_register ";
2026 OS <<
"\t.cfi_offset ";
2032void MCAsmStreamer::emitCFIPersonality(
const MCSymbol *
Sym,
2033 unsigned Encoding) {
2035 OS <<
"\t.cfi_personality " << Encoding <<
", ";
2036 Sym->print(
OS, MAI);
2040void MCAsmStreamer::emitCFILsda(
const MCSymbol *
Sym,
unsigned Encoding) {
2042 OS <<
"\t.cfi_lsda " << Encoding <<
", ";
2043 Sym->print(
OS, MAI);
2047void MCAsmStreamer::emitCFIRememberState(
SMLoc Loc) {
2049 OS <<
"\t.cfi_remember_state";
2053void MCAsmStreamer::emitCFIRestoreState(
SMLoc Loc) {
2055 OS <<
"\t.cfi_restore_state";
2059void MCAsmStreamer::emitCFIRestore(int64_t
Register,
SMLoc Loc) {
2061 OS <<
"\t.cfi_restore ";
2066void MCAsmStreamer::emitCFISameValue(int64_t
Register,
SMLoc Loc) {
2068 OS <<
"\t.cfi_same_value ";
2073void MCAsmStreamer::emitCFIRelOffset(int64_t
Register, int64_t
Offset,
2076 OS <<
"\t.cfi_rel_offset ";
2082void MCAsmStreamer::emitCFIAdjustCfaOffset(int64_t Adjustment,
SMLoc Loc) {
2084 OS <<
"\t.cfi_adjust_cfa_offset " << Adjustment;
2088void MCAsmStreamer::emitCFISignalFrame() {
2090 OS <<
"\t.cfi_signal_frame";
2094void MCAsmStreamer::emitCFIUndefined(int64_t
Register,
SMLoc Loc) {
2096 OS <<
"\t.cfi_undefined ";
2101void MCAsmStreamer::emitCFIRegister(int64_t Register1, int64_t Register2,
2104 OS <<
"\t.cfi_register ";
2105 EmitRegisterName(Register1);
2107 EmitRegisterName(Register2);
2111void MCAsmStreamer::emitCFIWindowSave(
SMLoc Loc) {
2113 OS <<
"\t.cfi_window_save";
2117void MCAsmStreamer::emitCFINegateRAState(
SMLoc Loc) {
2119 OS <<
"\t.cfi_negate_ra_state";
2123void MCAsmStreamer::emitCFIReturnColumn(int64_t
Register) {
2125 OS <<
"\t.cfi_return_column ";
2130void MCAsmStreamer::emitCFIBKeyFrame() {
2132 OS <<
"\t.cfi_b_key_frame";
2136void MCAsmStreamer::emitCFIMTETaggedFrame() {
2138 OS <<
"\t.cfi_mte_tagged_frame";
2142void MCAsmStreamer::emitWinCFIStartProc(
const MCSymbol *Symbol,
SMLoc Loc) {
2150void MCAsmStreamer::emitWinCFIEndProc(
SMLoc Loc) {
2153 OS <<
"\t.seh_endproc";
2157void MCAsmStreamer::emitWinCFIFuncletOrFuncEnd(
SMLoc Loc) {
2160 OS <<
"\t.seh_endfunclet";
2164void MCAsmStreamer::emitWinCFIStartChained(
SMLoc Loc) {
2167 OS <<
"\t.seh_startchained";
2171void MCAsmStreamer::emitWinCFIEndChained(
SMLoc Loc) {
2174 OS <<
"\t.seh_endchained";
2178void MCAsmStreamer::emitWinEHHandler(
const MCSymbol *
Sym,
bool Unwind,
2179 bool Except,
SMLoc Loc) {
2182 OS <<
"\t.seh_handler ";
2183 Sym->print(
OS, MAI);
2185 const Triple &
T = getContext().getTargetTriple();
2189 OS <<
", " << Marker <<
"unwind";
2191 OS <<
", " << Marker <<
"except";
2195void MCAsmStreamer::emitWinEHHandlerData(
SMLoc Loc) {
2210 MCSection *XData = getAssociatedXDataSection(TextSec);
2211 switchSectionNoPrint(XData);
2213 OS <<
"\t.seh_handlerdata";
2220 OS <<
"\t.seh_pushreg ";
2229 OS <<
"\t.seh_setframe ";
2235void MCAsmStreamer::emitWinCFIAllocStack(
unsigned Size,
SMLoc Loc) {
2238 OS <<
"\t.seh_stackalloc " <<
Size;
2246 OS <<
"\t.seh_savereg ";
2256 OS <<
"\t.seh_savexmm ";
2262void MCAsmStreamer::emitWinCFIPushFrame(
bool Code,
SMLoc Loc) {
2265 OS <<
"\t.seh_pushframe";
2271void MCAsmStreamer::emitWinCFIEndProlog(
SMLoc Loc) {
2274 OS <<
"\t.seh_endprologue";
2281 OS <<
"\t.cg_profile ";
2282 From->getSymbol().print(
OS, MAI);
2285 OS <<
", " << Count;
2289void MCAsmStreamer::AddEncodingComment(
const MCInst &Inst,
2296 if (!getAssembler().getEmitterPtr())
2299 getAssembler().getEmitter().encodeInstruction(Inst, Code, Fixups, STI);
2306 for (
unsigned i = 0, e =
Code.size() * 8; i != e; ++i)
2309 for (
unsigned i = 0, e =
Fixups.size(); i != e; ++i) {
2312 getAssembler().getBackend().getFixupKindInfo(
F.getKind());
2313 for (
unsigned j = 0;
j !=
Info.TargetSize; ++
j) {
2314 unsigned Index =
F.getOffset() * 8 +
Info.TargetOffset +
j;
2316 FixupMap[
Index] = 1 + i;
2322 OS <<
"encoding: [";
2323 for (
unsigned i = 0, e =
Code.size(); i != e; ++i) {
2328 uint8_t MapEntry = FixupMap[i * 8 + 0];
2329 for (
unsigned j = 1;
j != 8; ++
j) {
2330 if (FixupMap[i * 8 + j] == MapEntry)
2333 MapEntry = uint8_t(~0U);
2337 if (MapEntry != uint8_t(~0U)) {
2338 if (MapEntry == 0) {
2339 OS <<
format(
"0x%02x", uint8_t(Code[i]));
2343 OS <<
format(
"0x%02x", uint8_t(Code[i])) <<
'\''
2344 <<
char(
'A' + MapEntry - 1) <<
'\'';
2346 OS <<
char(
'A' + MapEntry - 1);
2351 for (
unsigned j = 8;
j--;) {
2356 FixupBit = i * 8 + j;
2358 FixupBit = i * 8 + (7-
j);
2360 if (uint8_t MapEntry = FixupMap[FixupBit]) {
2361 assert(Bit == 0 &&
"Encoder wrote into fixed up bit!");
2362 OS <<
char(
'A' + MapEntry - 1);
2370 for (
unsigned i = 0, e =
Fixups.size(); i != e; ++i) {
2373 getAssembler().getBackend().getFixupKindInfo(
F.getKind());
2374 OS <<
" fixup " <<
char(
'A' + i) <<
" - "
2375 <<
"offset: " <<
F.getOffset() <<
", value: ";
2376 F.getValue()->print(
OS, MAI);
2377 OS <<
", kind: " <<
Info.Name <<
"\n";
2381void MCAsmStreamer::emitInstruction(
const MCInst &Inst,
2383 assert(getCurrentSectionOnly() &&
2384 "Cannot emit contents before setting section!");
2392 AddEncodingComment(Inst, STI);
2396 Inst.
dump_pretty(getCommentOS(), InstPrinter.get(),
"\n ");
2397 getCommentOS() <<
"\n";
2400 if(getTargetStreamer())
2401 getTargetStreamer()->prettyPrintAsm(*InstPrinter, 0, Inst, STI,
OS);
2403 InstPrinter->printInst(&Inst, 0,
"", STI,
OS);
2406 if (Comments.
size() && Comments.
back() !=
'\n')
2407 getCommentOS() <<
"\n";
2417 OS <<
"\t.pseudoprobe\t" <<
Guid <<
" " <<
Index <<
" " <<
Type <<
" " << Attr;
2422 for (
const auto &Site : InlineStack)
2423 OS <<
" @ " << std::get<0>(Site) <<
":" << std::get<1>(Site);
2430void MCAsmStreamer::emitBundleAlignMode(
Align Alignment) {
2431 OS <<
"\t.bundle_align_mode " <<
Log2(Alignment);
2435void MCAsmStreamer::emitBundleLock(
bool AlignToEnd) {
2436 OS <<
"\t.bundle_lock";
2438 OS <<
" align_to_end";
2442void MCAsmStreamer::emitBundleUnlock() {
2443 OS <<
"\t.bundle_unlock";
2447std::optional<std::pair<bool, std::string>>
2459 return std::nullopt;
2462void MCAsmStreamer::emitAddrsig() {
2467void MCAsmStreamer::emitAddrsigSym(
const MCSymbol *
Sym) {
2468 OS <<
"\t.addrsig_sym ";
2469 Sym->print(
OS, MAI);
2477 String.consume_back(
"\n");
2482void MCAsmStreamer::finishImpl() {
2484 if (getContext().getGenDwarfForAssembly())
2497 const auto &Tables = getContext().getMCDwarfLineTables();
2498 if (!Tables.empty()) {
2499 assert(Tables.size() == 1 &&
"asm output only supports one line table");
2500 if (
auto *Label = Tables.begin()->second.getLabel()) {
2501 switchSection(getContext().getObjectFileInfo()->getDwarfLineSection());
2519MCSymbol *MCAsmStreamer::emitDwarfUnitLength(
const Twine &Prefix,
2520 const Twine &Comment) {
2528 return getContext().createTempSymbol(Prefix +
"_end");
2532void MCAsmStreamer::emitDwarfLineStartLabel(
MCSymbol *StartSym) {
2543 emitLabel(DebugLineSymTmp);
2547 unsigned LengthFieldSize =
2553 emitAssignment(StartSym, OuterSym);
2559void MCAsmStreamer::emitDwarfLineEndEntry(
MCSection *Section,
2567 ".loc should not be generated together with raw data!");
2579 emitDwarfAdvanceLineAddr(
INT64_MAX, LastLabel, SectionEnd,
2584void MCAsmStreamer::emitDwarfAdvanceLineAddr(int64_t LineDelta,
2587 unsigned PointerSize) {
2589 ".loc/.file don't need raw data in debug line section!");
2592 AddComment(
"Set address to " +
Label->getName());
2593 emitIntValue(dwarf::DW_LNS_extended_op, 1);
2594 emitULEB128IntValue(PointerSize + 1);
2595 emitIntValue(dwarf::DW_LNE_set_address, 1);
2596 emitSymbolValue(Label, PointerSize);
2600 AddComment(
"Start sequence");
2608 AddComment(
"End sequence");
2609 emitIntValue(dwarf::DW_LNS_extended_op, 1);
2610 emitULEB128IntValue(1);
2611 emitIntValue(dwarf::DW_LNE_end_sequence, 1);
2616 AddComment(
"Advance line " +
Twine(LineDelta));
2617 emitIntValue(dwarf::DW_LNS_advance_line, 1);
2618 emitSLEB128IntValue(LineDelta);
2619 emitIntValue(dwarf::DW_LNS_copy, 1);
2622void MCAsmStreamer::doFinalizationAtSectionEnd(
MCSection *Section) {
2628 switchSectionNoPrint(Section);
2630 MCSymbol *
Sym = getCurrentSectionOnly()->getEndSymbol(getContext());
2632 if (!
Sym->isInSection())
2637 std::unique_ptr<formatted_raw_ostream>
OS,
2638 bool isVerboseAsm,
bool useDwarfDirectory,
2640 std::unique_ptr<MCCodeEmitter> &&CE,
2641 std::unique_ptr<MCAsmBackend> &&MAB,
2643 return new MCAsmStreamer(Context, std::move(
OS), isVerboseAsm,
2644 useDwarfDirectory, IP, std::move(CE), std::move(MAB),
unsigned const MachineRegisterInfo * MRI
BlockVerifier::State From
Analysis containing CSE Info
#define LLVM_LIKELY(EXPR)
static GCMetadataPrinterRegistry::Add< ErlangGCPrinter > X("erlang", "erlang-compatible garbage collector")
static void PrintCFIEscape(llvm::formatted_raw_ostream &OS, StringRef Values)
static const char * getVersionMinDirective(MCVersionMinType Type)
static bool isPrintableString(StringRef Data)
static void PrintByteList(StringRef Data, raw_ostream &OS, MCAsmInfo::AsmCharLiteralSyntax ACLS)
static char toOctal(int X)
static void EmitSDKVersionSuffix(raw_ostream &OS, const VersionTuple &SDKVersion)
static int64_t truncateToSize(int64_t Value, unsigned Bytes)
static const char * getPlatformName(MachO::PlatformType Type)
#define DWARF2_FLAG_IS_STMT
#define DWARF2_FLAG_BASIC_BLOCK
#define DWARF2_FLAG_PROLOGUE_END
#define DWARF2_FLAG_EPILOGUE_BEGIN
ConstantRange Range(APInt(BitWidth, Low), APInt(BitWidth, High))
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
This file defines the SmallString class.
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...
void print(raw_ostream &OS) const
Print out the bounds to a stream.
Tagged union holding either a T or a Error.
Error takeError()
Take ownership of the stored error.
reference get()
Returns a reference to the stored T value.
This class is intended to be used as a base class for asm properties and features specific to the tar...
const char * getPlainStringDirective() const
const char * getLabelSuffix() const
bool hasDotTypeDotSizeDirective() const
bool isLittleEndian() const
True if the target is little endian.
bool doesSupportDataRegionDirectives() const
const char * getTPRel64Directive() const
const char * getData32bitsDirective() const
bool hasFourStringsDotFile() const
unsigned getAssemblerDialect() const
unsigned getTextAlignFillValue() const
bool useDwarfRegNumForCFI() const
bool supportsExtendedDwarfLocDirective() const
const char * getData8bitsDirective() const
const char * getTPRel32Directive() const
const char * getData64bitsDirective() const
AsmCharLiteralSyntax characterLiteralSyntax() const
const char * getByteListDirective() const
const char * getCode16Directive() const
const char * getGPRel64Directive() const
LCOMM::LCOMMType getLCOMMDirectiveAlignmentType() const
StringRef getCommentString() const
const char * getAscizDirective() const
const char * getDTPRel64Directive() const
const char * getZeroDirective() const
const char * getWeakDirective() const
bool hasSubsectionsViaSymbols() const
const char * getData16bitsDirective() const
const char * getSeparatorString() const
bool getCOMMDirectiveAlignmentIsInBytes() const
bool hasPairedDoubleQuoteStringConstants() const
bool needsDwarfSectionSizeInHeader() const
const char * getGlobalDirective() const
const char * getCode32Directive() const
unsigned getCommentColumn() const
This indicates the column (zero-based) at which asm comments should be printed.
const char * getCode64Directive() const
bool hasSingleParameterDotFile() const
bool doesZeroDirectiveSupportNonZeroValue() const
const char * getAsciiDirective() const
AsmCharLiteralSyntax
Assembly character literal syntax types.
@ ACLS_SingleQuotePrefix
Unknown; character literals not used by LLVM for this target.
bool useDotAlignForAlignment() const
const char * getGPRel32Directive() const
const char * getWeakRefDirective() const
const char * getDTPRel32Directive() const
bool hasNoDeadStrip() const
bool usesDwarfFileAndLocDirectives() const
bool hasIdentDirective() const
unsigned getCodePointerSize() const
Get the code pointer size in bytes.
static const MCBinaryExpr * createSub(const MCExpr *LHS, const MCExpr *RHS, MCContext &Ctx)
static const MCConstantExpr * create(int64_t Value, MCContext &Ctx, bool PrintInHex=false, unsigned SizeInBytes=0)
Context object for machine code objects.
const MCObjectFileInfo * getObjectFileInfo() const
MCSymbol * createTempSymbol()
Create a temporary symbol with a unique name.
const MCAsmInfo * getAsmInfo() const
void setUseNamesOnTempLabels(bool Value)
dwarf::DwarfFormat getDwarfFormat() const
static void Emit(MCStreamer *MCOS, MCDwarfLineTableParams Params, int64_t LineDelta, uint64_t AddrDelta)
Utility function to emit the encoding to a streamer.
static void make(MCStreamer *MCOS, MCSection *Section)
static void emit(MCStreamer *MCOS, MCDwarfLineTableParams Params)
Expected< unsigned > tryGetFile(StringRef &Directory, StringRef &FileName, std::optional< MD5::MD5Result > Checksum, std::optional< StringRef > Source, uint16_t DwarfVersion, unsigned FileNumber=0)
const SmallVectorImpl< MCDwarfFile > & getMCDwarfFiles() const
Base class for the full range of assembler expressions which are needed for parsing.
void print(raw_ostream &OS, const MCAsmInfo *MAI, bool InParens=false) const
Encode information on a single operation to perform on a byte sequence (e.g., an encoded instruction)...
static void Emit(MCStreamer *MCOS)
This is an instance of a target assembly language printer that converts an MCInst to valid target ass...
Instances of this class represent a single low-level machine instruction.
void dump_pretty(raw_ostream &OS, const MCInstPrinter *Printer=nullptr, StringRef Separator=" ", const MCRegisterInfo *RegInfo=nullptr) const
Dump the MCInst as prettily as possible using the additional MC structures, if given.
MCSection * getTextSection() const
MCRegisterInfo base class - We assume that the target defines a static array of MCRegisterDesc object...
Wrapper class representing physical registers. Should be passed by value.
This represents a section on a Mach-O system (used by Mac OS X).
StringRef getSegmentName() const
Instances of this class represent a uniqued identifier for a section in the current translation unit.
MCSymbol * getEndSymbol(MCContext &Ctx)
StringRef getName() const
Streaming machine code generation interface.
virtual void emitCFIGnuArgsSize(int64_t Size, SMLoc Loc={})
virtual void emitAddrsig()
virtual void emitAssignment(MCSymbol *Symbol, const MCExpr *Value)
Emit an assignment of Value to Symbol.
virtual void emitCFIDefCfa(int64_t Register, int64_t Offset, SMLoc Loc={})
virtual void addBlankLine()
Emit a blank line to a .s file to pretty it up.
virtual void emitDwarfLineEndEntry(MCSection *Section, MCSymbol *LastLabel)
Emit the debug line end entry.
virtual bool emitCVFuncIdDirective(unsigned FunctionId)
Introduces a function id for use with .cv_loc.
virtual void finishImpl()
Streamer specific finalization.
virtual void emitDTPRel64Value(const MCExpr *Value)
Emit the expression Value into the output as a dtprel (64-bit DTP relative) value.
virtual void emitCFIBKeyFrame()
virtual void beginCOFFSymbolDef(const MCSymbol *Symbol)
Start emitting COFF symbol definition.
virtual void emitSyntaxDirective()
virtual void emitWinCFIPushReg(MCRegister Register, SMLoc Loc=SMLoc())
virtual void emitBinaryData(StringRef Data)
Functionally identical to EmitBytes.
virtual StringRef getMnemonic(MCInst &MI)
Returns the mnemonic for MI, if the streamer has access to a instruction printer and returns an empty...
virtual void emitGNUAttribute(unsigned Tag, unsigned Value)
Emit a .gnu_attribute directive.
virtual raw_ostream & getCommentOS()
Return a raw_ostream that comments can be written to.
virtual void emitWinEHHandler(const MCSymbol *Sym, bool Unwind, bool Except, SMLoc Loc=SMLoc())
virtual void emitBundleLock(bool AlignToEnd)
The following instructions are a bundle-locked group.
virtual void emitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI)
Emit the given Instruction into the current section.
virtual void emitGPRel64Value(const MCExpr *Value)
Emit the expression Value into the output as a gprel64 (64-bit GP relative) value.
virtual void emitCFISameValue(int64_t Register, SMLoc Loc={})
virtual bool emitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute)=0
Add the given Attribute to Symbol.
virtual bool emitCVFileDirective(unsigned FileNo, StringRef Filename, ArrayRef< uint8_t > Checksum, unsigned ChecksumKind)
Associate a filename with a specified logical file number, and also specify that file's checksum info...
virtual void emitCFIReturnColumn(int64_t Register)
virtual void emitCOFFSymbolType(int Type)
Emit the type of the symbol.
virtual void emitCFIPersonality(const MCSymbol *Sym, unsigned Encoding)
virtual void emitDwarfUnitLength(uint64_t Length, const Twine &Comment)
Emit a unit length field.
virtual void emitCFIWindowSave(SMLoc Loc={})
virtual void emitCOFFSymbolIndex(MCSymbol const *Symbol)
Emits the symbol table index of a Symbol into the current section.
virtual void emitCVStringTableDirective()
This implements the CodeView '.cv_stringtable' assembler directive.
virtual bool hasRawTextSupport() const
Return true if this asm streamer supports emitting unformatted text to the .s file with EmitRawText.
virtual void emitIntValueInHex(uint64_t Value, unsigned Size)
Special case of EmitValue that avoids the client having to pass in a MCExpr for constant integers & p...
virtual void emitDwarfLocDirective(unsigned FileNo, unsigned Line, unsigned Column, unsigned Flags, unsigned Isa, unsigned Discriminator, StringRef FileName)
This implements the DWARF2 '.loc fileno lineno ...' assembler directive.
virtual bool isVerboseAsm() const
Return true if this streamer supports verbose assembly and if it is enabled.
virtual void emitCOFFImgRel32(MCSymbol const *Symbol, int64_t Offset)
Emits a COFF image relative relocation.
virtual void endCOFFSymbolDef()
Marks the end of the symbol definition.
virtual void emitWinCFIPushFrame(bool Code, SMLoc Loc=SMLoc())
virtual void emitWinEHHandlerData(SMLoc Loc=SMLoc())
virtual void emitCommonSymbol(MCSymbol *Symbol, uint64_t Size, Align ByteAlignment)=0
Emit a common symbol.
virtual MCAssembler * getAssemblerPtr()
virtual void emitXCOFFSymbolLinkageWithVisibility(MCSymbol *Symbol, MCSymbolAttr Linkage, MCSymbolAttr Visibility)
Emit a symbol's linkage and visibility with a linkage directive for XCOFF.
virtual void emitCFIUndefined(int64_t Register, SMLoc Loc={})
virtual void emitWinCFISaveXMM(MCRegister Register, unsigned Offset, SMLoc Loc=SMLoc())
virtual void emitCFIStartProcImpl(MCDwarfFrameInfo &Frame)
virtual void emitCVFileChecksumOffsetDirective(unsigned FileNo)
This implements the CodeView '.cv_filechecksumoffset' assembler directive.
virtual void emitCFINegateRAState(SMLoc Loc={})
virtual void emitGPRel32Value(const MCExpr *Value)
Emit the expression Value into the output as a gprel32 (32-bit GP relative) value.
virtual void emitCFILsda(const MCSymbol *Sym, unsigned Encoding)
virtual void emitBundleUnlock()
Ends a bundle-locked group.
virtual Expected< unsigned > tryEmitDwarfFileDirective(unsigned FileNo, StringRef Directory, StringRef Filename, std::optional< MD5::MD5Result > Checksum=std::nullopt, std::optional< StringRef > Source=std::nullopt, unsigned CUID=0)
Associate a filename with a specified logical file number.
virtual void addExplicitComment(const Twine &T)
Add explicit comment T.
virtual void AddComment(const Twine &T, bool EOL=true)
Add a textual comment.
virtual void emitCVFPOData(const MCSymbol *ProcSym, SMLoc Loc={})
This implements the CodeView '.cv_fpo_data' assembler directive.
virtual void emitELFSize(MCSymbol *Symbol, const MCExpr *Value)
Emit an ELF .size directive.
virtual void emitXCOFFLocalCommonSymbol(MCSymbol *LabelSym, uint64_t Size, MCSymbol *CsectSym, Align Alignment)
Emits an lcomm directive with XCOFF csect information.
virtual void emitCFIMTETaggedFrame()
virtual void emitTPRel32Value(const MCExpr *Value)
Emit the expression Value into the output as a tprel (32-bit TP relative) value.
virtual void emitCOFFSecRel32(MCSymbol const *Symbol, uint64_t Offset)
Emits a COFF section relative relocation.
virtual void doFinalizationAtSectionEnd(MCSection *Section)
Do finalization for the streamer at the end of a section.
virtual void emitRawComment(const Twine &T, bool TabPrefix=true)
Print T and prefix it with the comment string (normally #) and optionally a tab.
virtual std::optional< std::pair< bool, std::string > > emitRelocDirective(const MCExpr &Offset, StringRef Name, const MCExpr *Expr, SMLoc Loc, const MCSubtargetInfo &STI)
Record a relocation described by the .reloc directive.
virtual void emitWinCFIStartProc(const MCSymbol *Symbol, SMLoc Loc=SMLoc())
virtual void emitIdent(StringRef IdentString)
Emit the "identifiers" directive.
virtual void emitCVFileChecksumsDirective()
This implements the CodeView '.cv_filechecksums' assembler directive.
virtual void emitDwarfLineStartLabel(MCSymbol *StartSym)
Emit the debug line start label.
virtual void emitCFIEscape(StringRef Values, SMLoc Loc={})
virtual void emitXCOFFExceptDirective(const MCSymbol *Symbol, const MCSymbol *Trap, unsigned Lang, unsigned Reason, unsigned FunctionSize, bool hasDebug)
Emit an XCOFF .except directive which adds information about a trap instruction to the object file ex...
virtual void emitLabel(MCSymbol *Symbol, SMLoc Loc=SMLoc())
Emit a label for Symbol into the current section.
virtual void emitCOFFSectionIndex(MCSymbol const *Symbol)
Emits a COFF section index.
void setAllowAutoPadding(bool v)
virtual void emitCFIRememberState(SMLoc Loc)
virtual void emitCVLinetableDirective(unsigned FunctionId, const MCSymbol *FnStart, const MCSymbol *FnEnd)
This implements the CodeView '.cv_linetable' assembler directive.
virtual void emitTPRel64Value(const MCExpr *Value)
Emit the expression Value into the output as a tprel (64-bit TP relative) value.
virtual void emitCFISections(bool EH, bool Debug)
virtual void emitIntValueInHexWithPadding(uint64_t Value, unsigned Size)
Special case of EmitValue that avoids the client having to pass in a MCExpr for constant integers & p...
virtual void emitAssemblerFlag(MCAssemblerFlag Flag)
Note in the output the specified Flag.
virtual void emitDarwinTargetVariantBuildVersion(unsigned Platform, unsigned Major, unsigned Minor, unsigned Update, VersionTuple SDKVersion)
virtual void emitValueToAlignment(Align Alignment, int64_t Value=0, unsigned ValueSize=1, unsigned MaxBytesToEmit=0)
Emit some number of copies of Value until the byte alignment ByteAlignment is reached.
virtual void emitIntValue(uint64_t Value, unsigned Size)
Special case of EmitValue that avoids the client having to pass in a MCExpr for constant integers.
virtual void emitWinCFISaveReg(MCRegister Register, unsigned Offset, SMLoc Loc=SMLoc())
virtual void emitWinCFIEndChained(SMLoc Loc=SMLoc())
virtual void emitWinCFIEndProlog(SMLoc Loc=SMLoc())
virtual void emitDwarfAdvanceLineAddr(int64_t LineDelta, const MCSymbol *LastLabel, const MCSymbol *Label, unsigned PointerSize)
If targets does not support representing debug line section by .loc/.file directives in assembly outp...
virtual void emitWinCFIEndProc(SMLoc Loc=SMLoc())
virtual void emitCodeAlignment(Align Alignment, const MCSubtargetInfo *STI, unsigned MaxBytesToEmit=0)
Emit nops until the byte alignment ByteAlignment is reached.
virtual void emitCFIEndProcImpl(MCDwarfFrameInfo &CurFrame)
virtual void emitSymbolDesc(MCSymbol *Symbol, unsigned DescValue)
Set the DescValue for the Symbol.
virtual void emitCFIDefCfaRegister(int64_t Register, SMLoc Loc={})
virtual void emitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size, Align ByteAlignment)
Emit a local common (.lcomm) symbol.
virtual MCSymbol * getDwarfLineTableSymbol(unsigned CUID)
virtual void emitCFIRegister(int64_t Register1, int64_t Register2, SMLoc Loc={})
virtual void emitCOFFSafeSEH(MCSymbol const *Symbol)
virtual void emitWinCFIFuncletOrFuncEnd(SMLoc Loc=SMLoc())
This is used on platforms, such as Windows on ARM64, that require function or funclet sizes to be emi...
virtual void emitXCOFFRenameDirective(const MCSymbol *Name, StringRef Rename)
Emit a XCOFF .rename directive which creates a synonym for an illegal or undesirable name.
virtual void emitPseudoProbe(uint64_t Guid, uint64_t Index, uint64_t Type, uint64_t Attr, uint64_t Discriminator, const MCPseudoProbeInlineStack &InlineStack, MCSymbol *FnSym)
Emit the a pseudo probe into the current section.
virtual void emitCGProfileEntry(const MCSymbolRefExpr *From, const MCSymbolRefExpr *To, uint64_t Count)
virtual void emitDataRegion(MCDataRegionType Kind)
Note in the output the specified region Kind.
virtual void emitCFIAdjustCfaOffset(int64_t Adjustment, SMLoc Loc={})
virtual void emitULEB128Value(const MCExpr *Value)
virtual void emitCFIRelOffset(int64_t Register, int64_t Offset, SMLoc Loc)
virtual void emitLinkerOptions(ArrayRef< std::string > Kind)
Emit the given list Options of strings as linker options into the output.
virtual void emitValueToOffset(const MCExpr *Offset, unsigned char Value, SMLoc Loc)
Emit some number of copies of Value until the byte offset Offset is reached.
virtual void emitExplicitComments()
Emit added explicit comments.
virtual void emitThumbFunc(MCSymbol *Func)
Note in the output that the specified Func is a Thumb mode function (ARM target only).
virtual void emitCFIRestoreState(SMLoc Loc)
virtual void emitXCOFFRefDirective(const MCSymbol *Symbol)
Emit a XCOFF .ref directive which creates R_REF type entry in the relocation table for one or more sy...
virtual void emitCVDefRangeDirective(ArrayRef< std::pair< const MCSymbol *, const MCSymbol * > > Ranges, StringRef FixedSizePortion)
This implements the CodeView '.cv_def_range' assembler directive.
virtual void emitCFIOffset(int64_t Register, int64_t Offset, SMLoc Loc={})
virtual void emitWinCFISetFrame(MCRegister Register, unsigned Offset, SMLoc Loc=SMLoc())
virtual void emitDTPRel32Value(const MCExpr *Value)
Emit the expression Value into the output as a dtprel (32-bit DTP relative) value.
virtual void emitCFIDefCfaOffset(int64_t Offset, SMLoc Loc={})
virtual void emitZerofill(MCSection *Section, MCSymbol *Symbol=nullptr, uint64_t Size=0, Align ByteAlignment=Align(1), SMLoc Loc=SMLoc())=0
Emit the zerofill section and an optional symbol.
virtual void emitCVLocDirective(unsigned FunctionId, unsigned FileNo, unsigned Line, unsigned Column, bool PrologueEnd, bool IsStmt, StringRef FileName, SMLoc Loc)
This implements the CodeView '.cv_loc' assembler directive.
virtual void emitWinCFIAllocStack(unsigned Size, SMLoc Loc=SMLoc())
virtual void emitFileDirective(StringRef Filename)
Switch to a new logical file.
virtual void emitSLEB128Value(const MCExpr *Value)
virtual void emitELFSymverDirective(const MCSymbol *OriginalSym, StringRef Name, bool KeepOriginalSym)
Emit an ELF .symver directive.
virtual void emitXCOFFCInfoSym(StringRef Name, StringRef Metadata)
Emit a C_INFO symbol with XCOFF embedded metadata to the .info section.
virtual void emitValueImpl(const MCExpr *Value, unsigned Size, SMLoc Loc=SMLoc())
Emit the expression Value into the output as a native integer of the given Size bytes.
virtual void emitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args)
Emit a Linker Optimization Hint (LOH) directive.
virtual bool emitCVInlineSiteIdDirective(unsigned FunctionId, unsigned IAFunc, unsigned IAFile, unsigned IALine, unsigned IACol, SMLoc Loc)
Introduces an inline call site id for use with .cv_loc.
virtual void emitCFISignalFrame()
virtual void emitVersionMin(MCVersionMinType Type, unsigned Major, unsigned Minor, unsigned Update, VersionTuple SDKVersion)
Specify the Mach-O minimum deployment target version.
virtual void emitCOFFSymbolStorageClass(int StorageClass)
Emit the storage class of the symbol.
virtual void emitConditionalAssignment(MCSymbol *Symbol, const MCExpr *Value)
Emit an assignment of Value to Symbol, but only if Value is also emitted.
virtual void emitWinCFIStartChained(SMLoc Loc=SMLoc())
virtual void emitTBSSSymbol(MCSection *Section, MCSymbol *Symbol, uint64_t Size, Align ByteAlignment=Align(1))
Emit a thread local bss (.tbss) symbol.
virtual void emitCFIRestore(int64_t Register, SMLoc Loc={})
virtual void emitCVInlineLinetableDirective(unsigned PrimaryFunctionId, unsigned SourceFileId, unsigned SourceLineNum, const MCSymbol *FnStartSym, const MCSymbol *FnEndSym)
This implements the CodeView '.cv_inline_linetable' assembler directive.
void emitFill(uint64_t NumBytes, uint8_t FillValue)
Emit NumBytes bytes worth of the value specified by FillValue.
virtual void emitBundleAlignMode(Align Alignment)
Set the bundle alignment mode from now on in the section.
virtual void emitRawTextImpl(StringRef String)
EmitRawText - If this file is backed by an assembly streamer, this dumps the specified string in the ...
virtual void emitBytes(StringRef Data)
Emit the bytes in Data into the output.
virtual void emitAddrsigSym(const MCSymbol *Sym)
virtual void emitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol)
Emit an weak reference from Alias to Symbol.
virtual void emitDwarfFile0Directive(StringRef Directory, StringRef Filename, std::optional< MD5::MD5Result > Checksum, std::optional< StringRef > Source, unsigned CUID=0)
Specify the "root" file of the compilation, using the ".file 0" extension.
virtual void emitBuildVersion(unsigned Platform, unsigned Major, unsigned Minor, unsigned Update, VersionTuple SDKVersion)
Emit/Specify Mach-O build version command.
virtual void changeSection(MCSection *, uint32_t)
This is called by popSection and switchSection, if the current section changes.
virtual void emitCFILLVMDefAspaceCfa(int64_t Register, int64_t Offset, int64_t AddressSpace, SMLoc Loc={})
Generic base class for all target subtargets.
Represent a reference to a symbol from inside an expression.
const MCSymbol & getSymbol() const
static const MCSymbolRefExpr * create(const MCSymbol *Symbol, MCContext &Ctx)
StringRef getSymbolTableName() const
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...
void print(raw_ostream &OS, const MCAsmInfo *MAI) const
print - Print the value to the stream OS.
StringRef getName() const
getName - Get the symbol name.
MCSection & getSection() const
Get the section associated with a defined, non-absolute symbol.
Target specific streamer interface.
Wrapper class representing virtual and physical registers.
Represents a location in source code.
SmallString - A SmallString is just a SmallVector with methods and accessors that make it work better...
void append(StringRef RHS)
Append from a StringRef.
This class consists of common code factored out of the SmallVector class to reduce code duplication b...
void push_back(const T &Elt)
This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.
StringRef - Represent a constant reference to a string, i.e.
std::string str() const
str - Get the contents as an std::string.
constexpr StringRef substr(size_t Start, size_t N=npos) const
Return a reference to the substring from [Start, Start + N).
bool starts_with(StringRef Prefix) const
Check if this string starts with the given Prefix.
constexpr bool empty() const
empty - Check if the string is empty.
char back() const
back - Get the last character in the string.
StringRef slice(size_t Start, size_t End) const
Return a reference to the substring from [Start, End).
constexpr size_t size() const
size - Get the string size.
char front() const
front - Get the first character in the string.
size_t find_first_of(char C, size_t From=0) const
Find the first character in the string that is C, or npos if not found.
size_t find(char C, size_t From=0) const
Search for the first character C in the string.
Triple - Helper class for working with autoconf configuration names.
Twine - A lightweight data structure for efficiently representing the concatenation of temporary valu...
The instances of the Type class are immutable: once they are created, they are never changed.
LLVM Value Representation.
void print(raw_ostream &O, bool IsForDebug=false) const
Implement operator<< on Value.
Represents a version number in the form major[.minor[.subminor[.build]]].
unsigned getMajor() const
Retrieve the major version number.
std::optional< unsigned > getSubminor() const
Retrieve the subminor version number, if provided.
bool empty() const
Determine whether this version information is empty (e.g., all version components are zero).
std::optional< unsigned > getMinor() const
Retrieve the minor version number, if provided.
A raw_ostream that discards all output.
This class implements an extremely fast bulk output stream that can only output to a stream.
raw_ostream & write_hex(unsigned long long N)
Output N in hexadecimal, without any prefix or padding.
size_t GetNumBytesInBuffer() const
A raw_ostream that writes to an SmallVector or SmallString.
This class represents a function that is read from a sample profile.
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
constexpr char Args[]
Key for Kernel::Metadata::mArgs.
@ C
The default llvm calling convention, compatible with C.
uint8_t getUnitLengthFieldByteSize(DwarfFormat Format)
Get the byte size of the unit length field depending on the DWARF format.
support::ulittle32_t Word
@ Emitted
Assigned address, still materializing.
NodeAddr< FuncNode * > Func
NodeAddr< CodeNode * > Code
uint32_t read32be(const void *P)
bool is_absolute(const Twine &path, Style style=Style::native)
Is path absolute?
void append(SmallVectorImpl< char > &path, const Twine &a, const Twine &b="", const Twine &c="", const Twine &d="")
Append to path.
This is an optimization pass for GlobalISel generic memory operations.
auto drop_begin(T &&RangeOrContainer, size_t N=1)
Return a range covering RangeOrContainer with the first N elements excluded.
iterator_range< T > make_range(T x, T y)
Convenience function for iterating over sub-ranges.
static StringRef MCLOHDirectiveName()
@ MCDR_DataRegionEnd
.end_data_region
@ MCDR_DataRegion
.data_region
@ MCDR_DataRegionJT8
.data_region jt8
@ MCDR_DataRegionJT32
.data_region jt32
@ MCDR_DataRegionJT16
.data_region jt16
unsigned Log2_32(uint32_t Value)
Return the floor log base 2 of the specified value, -1 if the value is zero.
constexpr bool isPowerOf2_32(uint32_t Value)
Return true if the argument is a power of two > 0.
@ MCVM_WatchOSVersionMin
.watchos_version_min
@ MCVM_OSXVersionMin
.macosx_version_min
@ MCVM_TvOSVersionMin
.tvos_version_min
@ MCVM_IOSVersionMin
.ios_version_min
void report_fatal_error(Error Err, bool gen_crash_diag=true)
Report a serious error, calling any installed error handler.
raw_ostream & nulls()
This returns a reference to a raw_ostream which simply discards output.
FormattedNumber format_hex(uint64_t N, unsigned Width, bool Upper=false)
format_hex - Output N as a fixed width hexadecimal.
format_object< Ts... > format(const char *Fmt, const Ts &... Vals)
These are helper functions used to produce formatted output.
static int MCLOHIdToNbArgs(MCLOHType Kind)
@ MCAF_SyntaxUnified
.syntax (ARM/ELF)
@ MCAF_Code64
.code64 (X86)
@ MCAF_Code16
.code16 (X86) / .code 16 (ARM)
@ MCAF_Code32
.code32 (X86) / .code 32 (ARM)
@ MCAF_SubsectionsViaSymbols
.subsections_via_symbols (MachO)
MCLOHType
Linker Optimization Hint Type.
uint64_t alignTo(uint64_t Size, Align A)
Returns a multiple of A needed to store Size bytes.
MCStreamer * createAsmStreamer(MCContext &Ctx, std::unique_ptr< formatted_raw_ostream > OS, bool isVerboseAsm, bool useDwarfDirectory, MCInstPrinter *InstPrint, std::unique_ptr< MCCodeEmitter > &&CE, std::unique_ptr< MCAsmBackend > &&TAB, bool ShowInst)
Create a machine code streamer which will print out assembly for the native target,...
OutputIt move(R &&Range, OutputIt Out)
Provide wrappers to std::move which take ranges instead of having to pass begin/end explicitly.
unsigned encodeULEB128(uint64_t Value, raw_ostream &OS, unsigned PadTo=0)
Utility function to encode a ULEB128 value to an output stream.
unsigned Log2(Align A)
Returns the log2 of the alignment.
T bit_floor(T Value)
Returns the largest integral power of two no greater than Value if Value is nonzero.
@ MCSA_WeakDefAutoPrivate
.weak_def_can_be_hidden (MachO)
@ MCSA_Memtag
.memtag (ELF)
@ MCSA_Protected
.protected (ELF)
@ MCSA_Exported
.globl _foo, exported (XCOFF)
@ MCSA_PrivateExtern
.private_extern (MachO)
@ MCSA_Internal
.internal (ELF)
@ MCSA_WeakReference
.weak_reference (MachO)
@ MCSA_AltEntry
.alt_entry (MachO)
@ MCSA_ELF_TypeIndFunction
.type _foo, STT_GNU_IFUNC
@ MCSA_LazyReference
.lazy_reference (MachO)
@ MCSA_ELF_TypeNoType
.type _foo, STT_NOTYPE # aka @notype
@ MCSA_Reference
.reference (MachO)
@ MCSA_SymbolResolver
.symbol_resolver (MachO)
@ MCSA_ELF_TypeTLS
.type _foo, STT_TLS # aka @tls_object
@ MCSA_IndirectSymbol
.indirect_symbol (MachO)
@ MCSA_WeakDefinition
.weak_definition (MachO)
@ MCSA_ELF_TypeCommon
.type _foo, STT_COMMON # aka @common
@ MCSA_Global
.type _foo, @gnu_unique_object
@ MCSA_WeakAntiDep
.weak_anti_dep (COFF)
@ MCSA_Extern
.extern (XCOFF)
@ MCSA_ELF_TypeObject
.type _foo, STT_OBJECT # aka @object
@ MCSA_ELF_TypeGnuUniqueObject
@ MCSA_ELF_TypeFunction
.type _foo, STT_FUNC # aka @function
@ MCSA_Hidden
.hidden (ELF)
@ MCSA_LGlobal
.lglobl (XCOFF)
@ MCSA_Invalid
Not a valid directive.
@ MCSA_NoDeadStrip
.no_dead_strip (MachO)
static StringRef MCLOHIdToName(MCLOHType Kind)
Implement std::hash so that hash_code can be used in STL containers.
This struct is a compact representation of a valid (non-zero power of two) alignment.
uint64_t value() const
This is a hole in the type system and should not be abused.
Target independent information on a fixup kind.
const MCSymbol * Function