76 cl::desc(
"Putting Jump Table in function section"));
81 M.getModuleFlagsMetadata(ModuleFlags);
83 for (
const auto &MFE: ModuleFlags) {
89 if (Key ==
"Objective-C Image Info Version") {
90 Version = mdconst::extract<ConstantInt>(MFE.Val)->getZExtValue();
91 }
else if (Key ==
"Objective-C Garbage Collection" ||
92 Key ==
"Objective-C GC Only" ||
93 Key ==
"Objective-C Is Simulated" ||
94 Key ==
"Objective-C Class Properties" ||
95 Key ==
"Objective-C Image Swift Version") {
96 Flags |= mdconst::extract<ConstantInt>(MFE.Val)->getZExtValue();
97 }
else if (Key ==
"Objective-C Image Info Section") {
98 Section = cast<MDString>(MFE.Val)->getString();
102 else if (Key ==
"Swift ABI Version") {
103 Flags |= (mdconst::extract<ConstantInt>(MFE.Val)->getZExtValue()) << 8;
104 }
else if (Key ==
"Swift Major Version") {
105 Flags |= (mdconst::extract<ConstantInt>(MFE.Val)->getZExtValue()) << 24;
106 }
else if (Key ==
"Swift Minor Version") {
107 Flags |= (mdconst::extract<ConstantInt>(MFE.Val)->getZExtValue()) << 16;
300 if (
auto *GO = dyn_cast<GlobalObject>(GV))
308 if (
NamedMDNode *LinkerOptions = M.getNamedMetadata(
"llvm.linker.options")) {
314 for (
const auto *Operand : LinkerOptions->operands()) {
315 if (cast<MDNode>(Operand)->getNumOperands() != 2)
317 for (
const auto &Option : cast<MDNode>(Operand)->operands()) {
318 Streamer.
emitBytes(cast<MDString>(Option)->getString());
324 if (
NamedMDNode *DependentLibraries = M.getNamedMetadata(
"llvm.dependent-libraries")) {
330 for (
const auto *Operand : DependentLibraries->operands()) {
332 cast<MDString>(cast<MDNode>(Operand)->getOperand(0))->getString());
344 for (
const auto *Operand : FuncInfo->operands()) {
345 const auto *MD = cast<MDNode>(Operand);
346 auto *GUID = mdconst::dyn_extract<ConstantInt>(MD->getOperand(0));
347 auto *Hash = mdconst::dyn_extract<ConstantInt>(MD->getOperand(1));
348 auto *
Name = cast<MDString>(MD->getOperand(2));
349 auto *S =
C.getObjectFileInfo()->getPseudoProbeDescSection(
353 Streamer.
emitInt64(GUID->getZExtValue());
354 Streamer.
emitInt64(Hash->getZExtValue());
360 if (
NamedMDNode *LLVMStats = M.getNamedMetadata(
"llvm.stats")) {
363 auto *S =
C.getObjectFileInfo()->getLLVMStatsSection();
365 for (
const auto *Operand : LLVMStats->operands()) {
366 const auto *MD = cast<MDNode>(Operand);
367 assert(MD->getNumOperands() % 2 == 0 &&
368 (
"Operand num should be even for a list of key/value pair"));
369 for (
size_t I = 0;
I < MD->getNumOperands();
I += 2) {
371 auto *Key = cast<MDString>(MD->getOperand(
I));
376 Twine(mdconst::dyn_extract<ConstantInt>(MD->getOperand(
I + 1))
390 if (!Section.empty()) {
417 NameData +=
Sym->getName();
419 cast<MCSymbolELF>(
getContext().getOrCreateSymbol(NameData));
425 unsigned Size =
DL.getPointerSize();
477 Name ==
".llvmbc" ||
Name ==
".llvmcmd")
480 if (!
Name.starts_with(
"."))
return K;
483 if (
Name ==
".bss" ||
Name.starts_with(
".bss.") ||
484 Name.starts_with(
".gnu.linkonce.b.") ||
485 Name.starts_with(
".llvm.linkonce.b.") ||
Name ==
".sbss" ||
486 Name.starts_with(
".sbss.") ||
Name.starts_with(
".gnu.linkonce.sb.") ||
487 Name.starts_with(
".llvm.linkonce.sb."))
490 if (
Name ==
".tdata" ||
Name.starts_with(
".tdata.") ||
491 Name.starts_with(
".gnu.linkonce.td.") ||
492 Name.starts_with(
".llvm.linkonce.td."))
495 if (
Name ==
".tbss" ||
Name.starts_with(
".tbss.") ||
496 Name.starts_with(
".gnu.linkonce.tb.") ||
497 Name.starts_with(
".llvm.linkonce.tb."))
512 if (
Name.starts_with(
".note"))
526 if (
Name ==
".llvm.lto")
529 if (K.isBSS() || K.isThreadBSS())
538 if (!K.isMetadata() && !K.isExclude())
547 if (K.isExecuteOnly())
553 if (K.isThreadLocal())
556 if (K.isMergeableCString() || K.isMergeableConst())
559 if (K.isMergeableCString())
573 "SelectionKind::NoDeduplicate, '" +
574 C->getName() +
"' cannot be lowered.");
586 auto *OtherGV = dyn_cast<GlobalValue>(VM->getValue());
587 return OtherGV ? dyn_cast<MCSymbolELF>(
TM.getSymbol(OtherGV)) :
nullptr;
591 if (Kind.isMergeable1ByteCString())
593 else if (Kind.isMergeable2ByteCString())
595 else if (Kind.isMergeable4ByteCString())
597 else if (Kind.isMergeableConst4())
599 else if (Kind.isMergeableConst8())
601 else if (Kind.isMergeableConst16())
603 else if (Kind.isMergeableConst32())
608 assert(!Kind.isMergeableCString() &&
"unknown string width");
609 assert(!Kind.isMergeableConst() &&
"unknown data width");
618 return IsLarge ?
".ltext" :
".text";
619 if (Kind.isReadOnly())
620 return IsLarge ?
".lrodata" :
".rodata";
622 return IsLarge ?
".lbss" :
".bss";
623 if (Kind.isThreadData())
625 if (Kind.isThreadBSS())
628 return IsLarge ?
".ldata" :
".data";
629 if (Kind.isReadOnlyWithRel())
630 return IsLarge ?
".ldata.rel.ro" :
".data.rel.ro";
637 unsigned EntrySize,
bool UniqueSectionName) {
640 if (Kind.isMergeableCString()) {
645 cast<GlobalVariable>(GO));
648 Name += utostr(EntrySize);
651 }
else if (Kind.isMergeableConst()) {
653 Name += utostr(EntrySize);
656 bool HasPrefix =
false;
657 if (
const auto *
F = dyn_cast<Function>(GO)) {
658 if (std::optional<StringRef> Prefix =
F->getSectionPrefix()) {
664 if (UniqueSectionName) {
666 TM.getNameWithPrefix(
Name, GO, Mang,
true);
667 }
else if (HasPrefix)
679 LoweringDiagnosticInfo(
const Twine &DiagMsg,
692 unsigned &EntrySize,
unsigned &NextUniqueID,
693 const bool Retain,
const bool ForceUnique) {
698 return NextUniqueID++;
702 const bool Associated = GO->
getMetadata(LLVMContext::MD_associated);
705 return NextUniqueID++;
709 if (
TM.getTargetTriple().isOSSolaris())
714 return NextUniqueID++;
725 if (!SupportsUnique) {
726 Flags &= ~ELF::SHF_MERGE;
732 const bool SeenSectionNameBefore =
736 if (!SymbolMergeable && !SeenSectionNameBefore) {
737 if (
TM.getSeparateNamedSections())
738 return NextUniqueID++;
746 const auto PreviousID =
748 if (PreviousID && (!
TM.getSeparateNamedSections() ||
758 if (SymbolMergeable &&
765 return NextUniqueID++;
768static std::tuple<StringRef, bool, unsigned>
771 bool IsComdat =
false;
775 Group =
C->getName();
778 if (
TM.isLargeGlobalValue(GO))
780 return {Group, IsComdat, Flags};
786 bool Retain,
bool ForceUnique) {
795 if (Attrs.hasAttribute(
"bss-section") && Kind.isBSS()) {
796 SectionName = Attrs.getAttribute(
"bss-section").getValueAsString();
797 }
else if (Attrs.hasAttribute(
"rodata-section") && Kind.isReadOnly()) {
798 SectionName = Attrs.getAttribute(
"rodata-section").getValueAsString();
799 }
else if (Attrs.hasAttribute(
"relro-section") && Kind.isReadOnlyWithRel()) {
800 SectionName = Attrs.getAttribute(
"relro-section").getValueAsString();
801 }
else if (Attrs.hasAttribute(
"data-section") && Kind.isData()) {
802 SectionName = Attrs.getAttribute(
"data-section").getValueAsString();
815 GO,
SectionName, Kind,
TM, Ctx, Mang, Flags, EntrySize, NextUniqueID,
816 Retain, ForceUnique);
821 Group, IsComdat, UniqueID, LinkedToSym);
824 assert(Section->getLinkedToSymbol() == LinkedToSym &&
825 "Associated symbol mismatch between sections");
835 "Symbol '" + GO->
getName() +
"' from module '" +
837 "' required a section with entry-size=" +
840 ": Explicit assignment by pragma or attribute of an incompatible "
841 "symbol to this section?"));
850 NextUniqueID, Used.count(GO),
857 unsigned *NextUniqueID,
const MCSymbolELF *AssociatedSymbol) {
865 bool UniqueSectionName =
false;
867 if (EmitUniqueSection) {
868 if (
TM.getUniqueSectionNames()) {
869 UniqueSectionName =
true;
871 UniqueID = *NextUniqueID;
876 GO, Kind, Mang,
TM, EntrySize, UniqueSectionName);
879 if (Kind.isExecuteOnly())
882 EntrySize, Group, IsComdat, UniqueID,
889 unsigned Flags,
unsigned *NextUniqueID) {
892 EmitUniqueSection =
true;
896 if (
TM.getTargetTriple().isOSSolaris()) {
897 EmitUniqueSection =
true;
901 EmitUniqueSection =
true;
907 Ctx, GO, Kind, Mang,
TM, EmitUniqueSection, Flags,
908 NextUniqueID, LinkedToSym);
909 assert(Section->getLinkedToSymbol() == LinkedToSym);
919 bool EmitUniqueSection =
false;
928 Used.count(GO), EmitUniqueSection, Flags,
941 Used.count(&
F),
true);
945 true, Flags, &NextUniqueID);
954 if (!EmitUniqueSection)
970 const auto *LSDA = cast<MCSectionELF>(
LSDASection);
971 unsigned Flags = LSDA->getFlags();
974 bool IsComdat =
false;
977 Group =
C->getName();
983 (
getContext().getAsmInfo()->useIntegratedAssembler() &&
984 getContext().getAsmInfo()->binutilsIsAtLeast(2, 36))) {
986 LinkedToSym = cast<MCSymbolELF>(&FnSym);
999 bool UsesLabelDifference,
const Function &
F)
const {
1009 Align &Alignment)
const {
1018 if (Kind.isReadOnly())
1021 assert(Kind.isReadOnlyWithRel() &&
"Unknown section kind");
1039 if (FunctionSectionName ==
".text" ||
1045 Name += FunctionName;
1047 Name +=
".text.eh.";
1048 Name += FunctionName;
1050 Name += FunctionSectionName;
1052 if (!
Name.ends_with(
"."))
1056 UniqueID = NextUniqueID++;
1062 Name = FunctionSectionName;
1063 UniqueID = NextUniqueID++;
1067 std::string GroupName;
1068 if (
F.hasComdat()) {
1070 GroupName =
F.getComdat()->getName().str();
1074 F.hasComdat(), UniqueID,
nullptr);
1078 bool IsCtor,
unsigned Priority,
1091 Name =
".init_array";
1094 Name =
".fini_array";
1096 if (Priority != 65535) {
1098 Name += utostr(Priority);
1107 if (Priority != 65535)
1116 unsigned Priority,
const MCSymbol *KeySym)
const {
1122 unsigned Priority,
const MCSymbol *KeySym)
const {
1132 if (!
LHS->hasGlobalUnnamedAddr() || !
LHS->getValueType()->isFunctionTy())
1138 RHS->isThreadLocal())
1154 if (GV->isDSOLocal() || GV->isImplicitDSOLocal())
1171 UseInitArray = UseInitArray_;
1173 if (!UseInitArray) {
1221 unsigned Priority,
const MCSymbol *KeySym)
const {
1233 if (
auto *LinkerOptions = M.getNamedMetadata(
"llvm.linker.options")) {
1234 for (
const auto *Option : LinkerOptions->operands()) {
1236 for (
const auto &Piece : cast<MDNode>(Option)->operands())
1237 StrOptions.
push_back(std::string(cast<MDString>(Piece)->getString()));
1242 unsigned VersionVal = 0;
1243 unsigned ImageInfoFlags = 0;
1250 if (SectionVal.
empty())
1254 unsigned TAA = 0, StubSize = 0;
1257 SectionVal, Segment, Section, TAA, TAAParsed, StubSize)) {
1260 "': " +
toString(std::move(E)) +
".");
1268 getOrCreateSymbol(
StringRef(
"L_OBJC_IMAGE_INFO")));
1280 "' cannot be lowered.");
1291 if (Attrs.hasAttribute(
"bss-section") && Kind.isBSS()) {
1292 SectionName = Attrs.getAttribute(
"bss-section").getValueAsString();
1293 }
else if (Attrs.hasAttribute(
"rodata-section") && Kind.isReadOnly()) {
1294 SectionName = Attrs.getAttribute(
"rodata-section").getValueAsString();
1295 }
else if (Attrs.hasAttribute(
"relro-section") && Kind.isReadOnlyWithRel()) {
1296 SectionName = Attrs.getAttribute(
"relro-section").getValueAsString();
1297 }
else if (Attrs.hasAttribute(
"data-section") && Kind.isData()) {
1298 SectionName = Attrs.getAttribute(
"data-section").getValueAsString();
1304 unsigned TAA = 0, StubSize = 0;
1310 SectionName, Segment, Section, TAA, TAAParsed, StubSize)) {
1313 "' has an invalid section specifier '" +
1332 "' section type or attributes does not match previous"
1333 " section specifier");
1353 if (Kind.isReadOnly())
1355 if (Kind.isReadOnlyWithRel())
1361 if (Kind.isMergeable1ByteCString() &&
1363 cast<GlobalVariable>(GO)) <
Align(32))
1371 cast<GlobalVariable>(GO)) <
Align(32))
1377 if (Kind.isMergeableConst4())
1379 if (Kind.isMergeableConst8())
1381 if (Kind.isMergeableConst16())
1387 if (Kind.isReadOnly())
1392 if (Kind.isReadOnlyWithRel())
1397 if (Kind.isBSSExtern())
1402 if (Kind.isBSSLocal())
1411 Align &Alignment)
const {
1414 if (Kind.isData() || Kind.isReadOnlyWithRel())
1417 if (Kind.isMergeableConst4())
1419 if (Kind.isMergeableConst8())
1421 if (Kind.isMergeableConst16())
1571 bool CannotUsePrivateLabel =
true;
1575 CannotUsePrivateLabel =
1593 else if (K.isExclude())
1596 else if (K.isText())
1607 else if (K.isThreadLocal())
1612 else if (K.isReadOnly() || K.isReadOnlyWithRel())
1616 else if (K.isWriteable())
1627 assert(
C &&
"expected GV to have a Comdat!");
1633 "' does not exist.");
1637 "' is not a key for its COMDAT.");
1645 if (
const auto *GA = dyn_cast<GlobalAlias>(ComdatKey))
1647 if (ComdatKey == GV) {
1648 switch (
C->getSelectionKind()) {
1692 COMDATSymName =
Sym->getName();
1708 if (Kind.isThreadLocal())
1710 if (Kind.isReadOnly() || Kind.isReadOnlyWithRel())
1719 bool EmitUniquedSection;
1721 EmitUniquedSection =
TM.getFunctionSections();
1723 EmitUniquedSection =
TM.getDataSections();
1725 if ((EmitUniquedSection && !Kind.isCommon()) || GO->
hasComdat()) {
1741 if (EmitUniquedSection)
1742 UniqueID = NextUniqueID++;
1748 if (
const auto *
F = dyn_cast<Function>(GO))
1749 if (std::optional<StringRef> Prefix =
F->getSectionPrefix())
1755 if (
getContext().getTargetTriple().isWindowsGNUEnvironment())
1771 if (Kind.isThreadLocal())
1774 if (Kind.isReadOnly() || Kind.isReadOnlyWithRel())
1780 if (Kind.isBSS() || Kind.isCommon())
1789 bool CannotUsePrivateLabel =
false;
1791 ((isa<Function>(GV) &&
TM.getFunctionSections()) ||
1792 (isa<GlobalVariable>(GV) &&
TM.getDataSections())))
1793 CannotUsePrivateLabel =
true;
1803 bool EmitUniqueSection =
TM.getFunctionSections() ||
C;
1804 if (!EmitUniqueSection)
1808 if (
F.hasPrivateLinkage())
1818 unsigned UniqueID = NextUniqueID++;
1826 bool UsesLabelDifference,
const Function &
F)
const {
1835 UsesLabelDifference,
F);
1840 emitLinkerDirectives(Streamer, M);
1847 if (!Section.empty()) {
1861void TargetLoweringObjectFileCOFF::emitLinkerDirectives(
1863 if (
NamedMDNode *LinkerOptions = M.getNamedMetadata(
"llvm.linker.options")) {
1869 for (
const auto *Option : LinkerOptions->operands()) {
1870 for (
const auto &Piece : cast<MDNode>(Option)->operands()) {
1873 Directive.append(std::string(cast<MDString>(Piece)->getString()));
1886 if (!
Flags.empty()) {
1894 if (
const auto *LU =
M.getNamedGlobal(
"llvm.used")) {
1895 assert(LU->hasInitializer() &&
"expected llvm.used to have an initializer");
1896 assert(isa<ArrayType>(LU->getValueType()) &&
1897 "expected llvm.used to be an array type");
1898 if (
const auto *
A = cast<ConstantArray>(LU->getInitializer())) {
1899 for (
const Value *
Op :
A->operands()) {
1900 const auto *GV = cast<GlobalValue>(
Op->stripPointerCasts());
1904 if (GV->hasLocalLinkage())
1912 if (!
Flags.empty()) {
1927 if (
T.isWindowsMSVCEnvironment() ||
T.isWindowsItaniumEnvironment()) {
1949 if (
T.isWindowsMSVCEnvironment() ||
T.isWindowsItaniumEnvironment()) {
1951 if (Priority == 65535)
1965 char LastLetter =
'T';
1966 bool AddPrioritySuffix = Priority != 200 && Priority != 400;
1969 else if (Priority < 400)
1971 else if (Priority == 400)
1974 OS <<
".CRT$X" << (IsCtor ?
"C" :
"T") << LastLetter;
1975 if (AddPrioritySuffix)
1982 std::string
Name = IsCtor ?
".ctors" :
".dtors";
1983 if (Priority != 65535)
1994 unsigned Priority,
const MCSymbol *KeySym)
const {
2001 unsigned Priority,
const MCSymbol *KeySym)
const {
2011 if (
T.isOSCygMing())
2027 if (!isa<GlobalObject>(
LHS) || !isa<GlobalVariable>(
RHS) ||
2028 LHS->isThreadLocal() ||
RHS->isThreadLocal() ||
2029 RHS->
getName() !=
"__ImageBase" || !
RHS->hasExternalLinkage() ||
2030 cast<GlobalVariable>(
RHS)->hasInitializer() ||
RHS->hasSection())
2040 std::string HexString =
toString(AI, 16,
false);
2042 unsigned Size = HexString.size();
2043 assert(Width >=
Size &&
"hex string is too large!");
2044 HexString.insert(HexString.begin(), Width -
Size,
'0');
2050 Type *Ty =
C->getType();
2051 if (isa<UndefValue>(
C)) {
2053 }
else if (
const auto *CFP = dyn_cast<ConstantFP>(
C)) {
2055 }
else if (
const auto *CI = dyn_cast<ConstantInt>(
C)) {
2058 unsigned NumElements;
2059 if (
auto *VTy = dyn_cast<VectorType>(Ty))
2060 NumElements = cast<FixedVectorType>(VTy)->getNumElements();
2063 std::string HexString;
2064 for (
int I = NumElements - 1, E = -1;
I != E; --
I)
2072 Align &Alignment)
const {
2073 if (Kind.isMergeableConst() &&
C &&
2074 getContext().getAsmInfo()->hasCOFFComdatConstants()) {
2082 std::string COMDATSymName;
2083 if (Kind.isMergeableConst4()) {
2084 if (Alignment <= 4) {
2086 Alignment =
Align(4);
2088 }
else if (Kind.isMergeableConst8()) {
2089 if (Alignment <= 8) {
2091 Alignment =
Align(8);
2093 }
else if (Kind.isMergeableConst16()) {
2095 if (Alignment <= 16) {
2097 Alignment =
Align(16);
2099 }
else if (Kind.isMergeableConst32()) {
2100 if (Alignment <= 32) {
2102 Alignment =
Align(32);
2106 if (!COMDATSymName.empty())
2127 "SelectionKind::Any, '" +
C->getName() +
"' cannot be "
2136 if (K.isThreadLocal())
2139 if (K.isMergeableCString())
2154 if (
auto *GO = dyn_cast<GlobalObject>(GV))
2162 if (isa<Function>(GO)) {
2173 if (
Name ==
".llvmcmd" ||
Name ==
".llvmbc")
2178 Group =
C->getName();
2192 unsigned *NextUniqueID,
bool Retain) {
2195 Group =
C->getName();
2198 bool UniqueSectionNames =
TM.getUniqueSectionNames();
2201 if (
const auto *
F = dyn_cast<Function>(GO)) {
2202 const auto &OptionalPrefix =
F->getSectionPrefix();
2207 if (EmitUniqueSection && UniqueSectionNames) {
2208 Name.push_back(
'.');
2209 TM.getNameWithPrefix(
Name, GO, Mang,
true);
2212 if (EmitUniqueSection && !UniqueSectionNames) {
2213 UniqueID = *NextUniqueID;
2224 if (Kind.isCommon())
2229 bool EmitUniqueSection =
false;
2235 bool Retain = Used.count(GO);
2236 EmitUniqueSection |= Retain;
2239 EmitUniqueSection, &NextUniqueID, Retain);
2243 bool UsesLabelDifference,
const Function &
F)
const {
2254 if (!
LHS->hasGlobalUnnamedAddr() || !
LHS->getValueType()->isFunctionTy())
2260 RHS->isThreadLocal())
2279 unsigned Priority,
const MCSymbol *KeySym)
const {
2280 return Priority == UINT16_MAX ?
2287 unsigned Priority,
const MCSymbol *KeySym)
const {
2300 if (!
F.hasPersonalityFn() || !
F.needsUnwindTableEntry())
2304 dyn_cast<GlobalValue>(
F.getPersonalityFn()->stripPointerCasts());
2305 assert(Per &&
"Personality routine is not a GlobalValue type.");
2315 if (!
F.hasStackProtectorFnAttr())
2327 cast<MCSymbolXCOFF>(EHInfoSym)->setEHInfo();
2342 if (
const GlobalObject *GO = dyn_cast<GlobalObject>(GV)) {
2343 if (GO->isDeclarationForLinker())
2345 ->getQualNameSymbol();
2348 if (GVar->hasAttribute(
"toc-data"))
2349 return cast<MCSectionXCOFF>(
2351 ->getQualNameSymbol();
2355 return cast<MCSectionXCOFF>(
2357 ->getQualNameSymbol();
2361 ->getQualNameSymbol();
2377 if (GVar->hasAttribute(
"toc-data"))
2386 else if (Kind.isData() || Kind.isBSS())
2388 else if (Kind.isReadOnlyWithRel())
2391 else if (Kind.isReadOnly())
2404 "Tried to get ER section for a defined global.");
2424 if (GVar->hasAttribute(
"toc-data"))
2437 if (GVar->hasAttribute(
"toc-data")) {
2451 if (Kind.isBSSLocal() || GO->
hasCommonLinkage() || Kind.isThreadBSSLocal()) {
2461 if (Kind.isText()) {
2464 ->getRepresentedCsect();
2472 "ReadOnlyPointers is supported only if data sections is turned on");
2485 if (Kind.isData() || Kind.isReadOnlyWithRel() || Kind.isBSS()) {
2496 if (Kind.isReadOnly()) {
2511 if (Kind.isThreadLocal()) {
2526 assert (!
F.getComdat() &&
"Comdat not supported on XCOFF.");
2541 bool UsesLabelDifference,
const Function &
F)
const {
2549 Align &Alignment)
const {
2551 if (Alignment >
Align(16))
2554 if (Alignment ==
Align(8)) {
2559 if (Alignment ==
Align(16)) {
2587 unsigned Priority,
const MCSymbol *KeySym)
const {
2592 unsigned Priority,
const MCSymbol *KeySym)
const {
2605 assert(!isa<GlobalIFunc>(GV) &&
"GlobalIFunc is not supported on AIX.");
2623 "There is no mapping that implements AppendingLinkage for XCOFF.");
2630 assert((isa<Function>(Func) ||
2631 (isa<GlobalAlias>(Func) &&
2632 isa_and_nonnull<Function>(
2633 cast<GlobalAlias>(Func)->getAliaseeObject()))) &&
2634 "Func must be a function or an alias which has a function as base "
2646 Func->isDeclarationForLinker()) &&
2647 isa<Function>(Func)) {
2711 LSDA->getCsectProp());
2727 std::string
Name =
".gcc_exception_table." +
F.getName().str();
MachineBasicBlock MachineBasicBlock::iterator DebugLoc DL
amdgpu AMDGPU DAG DAG Pattern Instruction Selection
static bool isThumb(const MCSubtargetInfo &STI)
static void print(raw_ostream &Out, object::Archive::Kind Kind, T Val)
static GCRegistry::Add< ErlangGC > A("erlang", "erlang-compatible garbage collector")
COFFYAML::WeakExternalCharacteristics Characteristics
This file contains the declarations for the subclasses of Constant, which represent the different fla...
This file contains constants used for implementing Dwarf debug support.
This file declares the MCSectionGOFF class, which contains all of the necessary machine code sections...
Module.h This file contains the declarations for the Module class.
const char LLVMTargetMachineRef TM
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
This file defines the SmallString class.
This file defines the SmallVector class.
static bool canUsePrivateLabel(const MCAsmInfo &AsmInfo, const MCSection &Section)
static MCSection * selectExplicitSectionGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM, MCContext &Ctx, Mangler &Mang, unsigned &NextUniqueID, bool Retain, bool ForceUnique)
static int getSelectionForCOFF(const GlobalValue *GV)
static MCSectionCOFF * getCOFFStaticStructorSection(MCContext &Ctx, const Triple &T, bool IsCtor, unsigned Priority, const MCSymbol *KeySym, MCSectionCOFF *Default)
static unsigned getEntrySizeForKind(SectionKind Kind)
static void GetObjCImageInfo(Module &M, unsigned &Version, unsigned &Flags, StringRef &Section)
static const GlobalValue * getComdatGVForCOFF(const GlobalValue *GV)
static unsigned getCOFFSectionFlags(SectionKind K, const TargetMachine &TM)
static unsigned getELFSectionType(StringRef Name, SectionKind K)
static bool hasPrefix(StringRef SectionName, StringRef Prefix)
static MCSectionWasm * selectWasmSectionForGlobal(MCContext &Ctx, const GlobalObject *GO, SectionKind Kind, Mangler &Mang, const TargetMachine &TM, bool EmitUniqueSection, unsigned *NextUniqueID, bool Retain)
static const MCSymbolELF * getLinkedToSymbol(const GlobalObject *GO, const TargetMachine &TM)
static unsigned calcUniqueIDUpdateFlagsAndSize(const GlobalObject *GO, StringRef SectionName, SectionKind Kind, const TargetMachine &TM, MCContext &Ctx, Mangler &Mang, unsigned &Flags, unsigned &EntrySize, unsigned &NextUniqueID, const bool Retain, const bool ForceUnique)
Calculate an appropriate unique ID for a section, and update Flags, EntrySize and NextUniqueID where ...
static SectionKind getELFKindForNamedSection(StringRef Name, SectionKind K)
static const Comdat * getWasmComdat(const GlobalValue *GV)
static MCSectionELF * getStaticStructorSection(MCContext &Ctx, bool UseInitArray, bool IsCtor, unsigned Priority, const MCSymbol *KeySym)
static unsigned getWasmSectionFlags(SectionKind K, bool Retain)
static void checkMachOComdat(const GlobalValue *GV)
static std::string APIntToHexString(const APInt &AI)
static cl::opt< bool > JumpTableInFunctionSection("jumptable-in-function-section", cl::Hidden, cl::init(false), cl::desc("Putting Jump Table in function section"))
static StringRef getSectionPrefixForGlobal(SectionKind Kind, bool IsLarge)
Return the section prefix name used by options FunctionsSections and DataSections.
static MCSectionELF * selectELFSectionForGlobal(MCContext &Ctx, const GlobalObject *GO, SectionKind Kind, Mangler &Mang, const TargetMachine &TM, bool EmitUniqueSection, unsigned Flags, unsigned *NextUniqueID, const MCSymbolELF *AssociatedSymbol)
static SmallString< 128 > getELFSectionNameForGlobal(const GlobalObject *GO, SectionKind Kind, Mangler &Mang, const TargetMachine &TM, unsigned EntrySize, bool UniqueSectionName)
static std::string scalarConstantToHexString(const Constant *C)
static StringRef getCOFFSectionNameForUniqueGlobal(SectionKind Kind)
static const Comdat * getELFComdat(const GlobalValue *GV)
static std::tuple< StringRef, bool, unsigned > getGlobalObjectInfo(const GlobalObject *GO, const TargetMachine &TM)
static unsigned getELFSectionFlags(SectionKind K)
Class for arbitrary precision integers.
unsigned getBitWidth() const
Return the number of bits in the APInt.
static APInt getZero(unsigned numBits)
Get the '0' value for the specified bit-width.
@ Largest
The linker will choose the largest COMDAT.
@ SameSize
The data referenced by the COMDAT must be the same size.
@ Any
The linker may choose any COMDAT.
@ NoDeduplicate
No deduplication is performed.
@ ExactMatch
The data referenced by the COMDAT must be the same.
This is an important base class in LLVM.
Wrapper for a function that represents a value that functionally represents the original function.
GlobalValue * getGlobalValue() const
This class represents an Operation in the Expression.
A parsed version of the target data layout string in and methods for querying it.
Align getPreferredAlign(const GlobalVariable *GV) const
Returns the preferred alignment of the specified global.
StringRef getPrivateGlobalPrefix() const
This is the base abstract class for diagnostic reporting in the backend.
Interface for custom diagnostic printing.
Lightweight error class with error context and mandatory checking.
StringRef getSection() const
Get the custom section of this global if it has one.
bool hasSection() const
Check if this global has a custom object file section.
MDNode * getMetadata(unsigned KindID) const
Get the current metadata attachments for the given kind, if any.
bool hasExternalLinkage() const
bool isThreadLocal() const
If the value is "Thread Local", its value isn't shared by the threads.
LinkageTypes getLinkage() const
bool hasLocalLinkage() const
bool hasPrivateLinkage() const
const Comdat * getComdat() const
ThreadLocalMode getThreadLocalMode() const
bool isDeclarationForLinker() const
Module * getParent()
Get the module that this global value is contained inside of...
const GlobalObject * getAliaseeObject() const
const DataLayout & getDataLayout() const
Get the data layout of the module this global belongs to.
bool hasCommonLinkage() const
static bool isWeakForLinker(LinkageTypes Linkage)
Whether the definition of this global may be replaced at link time.
@ PrivateLinkage
Like Internal, but omit from symbol table.
@ CommonLinkage
Tentative definitions.
@ InternalLinkage
Rename collisions when linking (static functions).
@ LinkOnceAnyLinkage
Keep one copy of function when linking (inline)
@ WeakODRLinkage
Same, but only replaced by something equivalent.
@ ExternalLinkage
Externally visible function.
@ WeakAnyLinkage
Keep one copy of named function when linking (weak)
@ AppendingLinkage
Special purpose, only applies to global arrays.
@ AvailableExternallyLinkage
Available for inspection, not emission.
@ ExternalWeakLinkage
ExternalWeak linkage description.
@ LinkOnceODRLinkage
Same, but only replaced by something equivalent.
AttributeSet getAttributes() const
Return the attribute set for this global.
bool hasImplicitSection() const
Check if section name is present.
void diagnose(const DiagnosticInfo &DI)
Report a message to the currently installed diagnostic handler.
This class is intended to be used as a base class for asm properties and features specific to the tar...
bool useIntegratedAssembler() const
Return true if assembly (inline or otherwise) should be parsed.
virtual bool isSectionAtomizableBySymbols(const MCSection &Section) const
True if the section is atomized using the symbols in it.
bool binutilsIsAtLeast(int Major, int Minor) const
ExceptionHandling getExceptionHandlingType() const
static const MCBinaryExpr * createAdd(const MCExpr *LHS, const MCExpr *RHS, MCContext &Ctx)
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
MCSectionMachO * getMachOSection(StringRef Segment, StringRef Section, unsigned TypeAndAttributes, unsigned Reserved2, SectionKind K, const char *BeginSymName=nullptr)
Return the MCSection for the specified mach-o section.
MCSectionWasm * getWasmSection(const Twine &Section, SectionKind K, unsigned Flags=0)
MCSectionELF * getELFNamedSection(const Twine &Prefix, const Twine &Suffix, unsigned Type, unsigned Flags, unsigned EntrySize=0)
Get a section with the provided group identifier.
MCSectionELF * getELFSection(const Twine &Section, unsigned Type, unsigned Flags)
MCSectionCOFF * getCOFFSection(StringRef Section, unsigned Characteristics, StringRef COMDATSymName, int Selection, unsigned UniqueID=GenericSectionID)
MCSectionGOFF * getGOFFSection(StringRef Section, SectionKind Kind, MCSection *Parent, uint32_t Subsection=0)
bool isELFGenericMergeableSection(StringRef Name)
MCSectionXCOFF * getXCOFFSection(StringRef Section, SectionKind K, std::optional< XCOFF::CsectProperties > CsectProp=std::nullopt, bool MultiSymbolsAllowed=false, const char *BeginSymName=nullptr, std::optional< XCOFF::DwarfSectionSubtypeFlags > DwarfSubtypeFlags=std::nullopt)
std::optional< unsigned > getELFUniqueIDForEntsize(StringRef SectionName, unsigned Flags, unsigned EntrySize)
Return the unique ID of the section with the given name, flags and entry size, if it exists.
const MCAsmInfo * getAsmInfo() const
@ GenericSectionID
Pass this value as the UniqueID during section creation to get the generic section with the given nam...
MCSymbol * getOrCreateSymbol(const Twine &Name)
Lookup the symbol inside with the specified Name.
bool isELFImplicitMergeableSectionNamePrefix(StringRef Name)
MCSectionCOFF * getAssociativeCOFFSection(MCSectionCOFF *Sec, const MCSymbol *KeySym, unsigned UniqueID=GenericSectionID)
Gets or creates a section equivalent to Sec that is associated with the section containing KeySym.
Base class for the full range of assembler expressions which are needed for parsing.
MCSection * TLSBSSSection
Section directive for Thread Local uninitialized data.
MCSection * MergeableConst16Section
MCSection * MergeableConst4Section
MCSection * TextSection
Section directive for standard text.
MCSection * ConstDataCoalSection
MCSection * ConstTextCoalSection
MCSection * TLSDataSection
Section directive for Thread Local data. ELF, MachO, COFF, and Wasm.
MCSection * MergeableConst8Section
MCSection * LSDASection
If exception handling is supported by the target, this is the section the Language Specific Data Area...
MCSection * ReadOnly16Section
MCSection * FourByteConstantSection
MCSection * ReadOnly8Section
MCSection * DataBSSSection
MCSection * getDrectveSection() const
MCSection * TextCoalSection
MCSection * DataRelROSection
MCSection * CStringSection
bool isPositionIndependent() const
MCSection * DataCoalSection
MCSection * UStringSection
MCSection * MergeableConst32Section
MCSection * SixteenByteConstantSection
MCSection * DataCommonSection
MCSection * ReadOnlySection
Section that is readonly and can contain arbitrary initialized data.
MCSection * BSSSection
Section that is default initialized to zero.
MCSection * EightByteConstantSection
MCSection * getTextSection() const
MCSection * ConstDataSection
MCContext & getContext() const
MCSection * DataSection
Section directive for standard data.
This represents a section on Windows.
This represents a section on linux, lots of unix variants and some bare metal systems.
This represents a section on a Mach-O system (used by Mac OS X).
static Error ParseSectionSpecifier(StringRef Spec, StringRef &Segment, StringRef &Section, unsigned &TAA, bool &TAAParsed, unsigned &StubSize)
Parse the section specifier indicated by "Spec".
unsigned getTypeAndAttributes() const
unsigned getStubSize() const
This represents a section on wasm.
MCSymbolXCOFF * getQualNameSymbol() const
Instances of this class represent a uniqued identifier for a section in the current translation unit.
static constexpr unsigned NonUniqueID
StringRef getName() const
Streaming machine code generation interface.
virtual void addBlankLine()
Emit a blank line to a .s file to pretty it up.
virtual bool emitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute)=0
Add the given Attribute to Symbol.
virtual void emitELFSize(MCSymbol *Symbol, const MCExpr *Value)
Emit an ELF .size directive.
void emitSymbolValue(const MCSymbol *Sym, unsigned Size, bool IsSectionRelative=false)
Special case of EmitValue that avoids the client having to pass in a MCExpr for MCSymbols.
virtual void emitLabel(MCSymbol *Symbol, SMLoc Loc=SMLoc())
Emit a label for Symbol into the current section.
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.
unsigned emitULEB128IntValue(uint64_t Value, unsigned PadTo=0)
Special case of EmitULEB128Value that avoids the client having to pass in a MCExpr for constant integ...
virtual void emitLinkerOptions(ArrayRef< std::string > Kind)
Emit the given list Options of strings as linker options into the output.
void emitInt64(uint64_t Value)
virtual void switchSection(MCSection *Section, uint32_t Subsec=0)
Set the current section where code is being emitted to Section.
void emitInt32(uint64_t Value)
void emitInt8(uint64_t Value)
virtual void emitBytes(StringRef Data)
Emit the bytes in Data into the output.
const MCSymbol & getSymbol() const
static const MCSymbolRefExpr * create(const MCSymbol *Symbol, MCContext &Ctx)
StringRef getSymbolTableName() const
bool hasPerSymbolCodeModel() const
CodeModel getPerSymbolCodeModel() const
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...
StringRef getName() const
getName - Get the symbol name.
This represents an "assembler immediate".
int64_t getConstant() const
const MCSymbolRefExpr * getSymB() const
const MDOperand & getOperand(unsigned I) const
MCSymbol * getSymbol() const
Return the MCSymbol for this basic block.
MBBSectionID getSectionID() const
Returns the section ID of this basic block.
const MachineFunction * getParent() const
Return the MachineFunction containing this basic block.
bool isBeginSection() const
Returns true if this block begins any section.
unsigned getFunctionNumber() const
getFunctionNumber - Return a unique ID for the current function.
StringRef getName() const
getName - Return the name of the corresponding LLVM function.
Function & getFunction()
Return the LLVM function that this machine code represents.
const std::vector< LandingPadInfo > & getLandingPads() const
Return a reference to the landing pad info for the current function.
MCSection * getSection() const
Returns the Section this function belongs to.
MachineModuleInfo & getMMI() const
MachineModuleInfoELF - This is a MachineModuleInfoImpl implementation for ELF targets.
StubValueTy & getGVStubEntry(MCSymbol *Sym)
PointerIntPair< MCSymbol *, 1, bool > StubValueTy
MachineModuleInfoMachO - This is a MachineModuleInfoImpl implementation for MachO targets.
StubValueTy & getGVStubEntry(MCSymbol *Sym)
This class contains meta information specific to a module.
const MCContext & getContext() const
const Module * getModule() const
Ty & getObjFileInfo()
Keep track of various per-module pieces of information for backends that would like to do so.
void getNameWithPrefix(raw_ostream &OS, const GlobalValue *GV, bool CannotUsePrivateLabel) const
Print the appropriate prefix and the specified global variable's name.
A Module instance is used to store all the information related to an LLVM module.
@ Require
Adds a requirement that another module flag be present and have a specified value after linking is pe...
const std::string & getSourceFileName() const
Get the module's original source file name.
GlobalValue * getNamedValue(StringRef Name) const
Return the global value in the module with the specified name, of arbitrary type.
const DataLayout & getDataLayout() const
Get the data layout for the module's target platform.
PointerIntPair - This class implements a pair of a pointer and small integer.
PointerTy getPointer() const
SectionKind - This is a simple POD value that classifies the properties of a section.
static SectionKind getThreadData()
static SectionKind getMetadata()
bool isThreadBSSLocal() const
static SectionKind getText()
static SectionKind getData()
static SectionKind getBSS()
static SectionKind getThreadBSS()
static SectionKind getReadOnly()
SmallString - A SmallString is just a SmallVector with methods and accessors that make it work better...
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.
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.
const MCExpr * lowerRelativeReference(const GlobalValue *LHS, const GlobalValue *RHS, const TargetMachine &TM) const override
MCSection * getExplicitSectionGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
Targets should implement this method to assign a section to globals with an explicit section specfied...
MCSection * getSectionForConstant(const DataLayout &DL, SectionKind Kind, const Constant *C, Align &Alignment) const override
Given a mergeable constant with the specified size and relocation information, return a section that ...
void Initialize(MCContext &Ctx, const TargetMachine &TM) override
This method must be called before any actual lowering is done.
void emitModuleMetadata(MCStreamer &Streamer, Module &M) const override
Emit Obj-C garbage collection and linker options.
MCSection * SelectSectionForGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
MCSection * getStaticCtorSection(unsigned Priority, const MCSymbol *KeySym) const override
bool shouldPutJumpTableInFunctionSection(bool UsesLabelDifference, const Function &F) const override
void getNameWithPrefix(SmallVectorImpl< char > &OutName, const GlobalValue *GV, const TargetMachine &TM) const override
MCSection * getStaticDtorSection(unsigned Priority, const MCSymbol *KeySym) const override
MCSection * getSectionForJumpTable(const Function &F, const TargetMachine &TM) const override
MCSection * getUniqueSectionForFunction(const Function &F, const TargetMachine &TM) const override
void Initialize(MCContext &Ctx, const TargetMachine &TM) override
This method must be called before any actual lowering is done.
MCSection * getSectionForConstant(const DataLayout &DL, SectionKind Kind, const Constant *C, Align &Alignment) const override
Given a constant with the SectionKind, return a section that it should be placed in.
MCSection * getStaticCtorSection(unsigned Priority, const MCSymbol *KeySym) const override
MCSection * getSectionForJumpTable(const Function &F, const TargetMachine &TM) const override
void emitModuleMetadata(MCStreamer &Streamer, Module &M) const override
Emit Obj-C garbage collection and linker options.
MCSymbol * getCFIPersonalitySymbol(const GlobalValue *GV, const TargetMachine &TM, MachineModuleInfo *MMI) const override
TargetLoweringObjectFileELF()
MCSection * getStaticDtorSection(unsigned Priority, const MCSymbol *KeySym) const override
void emitPersonalityValue(MCStreamer &Streamer, const DataLayout &DL, const MCSymbol *Sym) const override
const MCExpr * getTTypeGlobalReference(const GlobalValue *GV, unsigned Encoding, const TargetMachine &TM, MachineModuleInfo *MMI, MCStreamer &Streamer) const override
Return an MCExpr to use for a reference to the specified type info global variable from exception han...
void getModuleMetadata(Module &M) override
Get the module-level metadata that the platform cares about.
const MCExpr * lowerRelativeReference(const GlobalValue *LHS, const GlobalValue *RHS, const TargetMachine &TM) const override
MCSection * SelectSectionForGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
const MCExpr * lowerDSOLocalEquivalent(const DSOLocalEquivalent *Equiv, const TargetMachine &TM) const override
MCSection * getSectionForCommandLines() const override
If supported, return the section to use for the llvm.commandline metadata.
MCSection * getSectionForLSDA(const Function &F, const MCSymbol &FnSym, const TargetMachine &TM) const override
bool shouldPutJumpTableInFunctionSection(bool UsesLabelDifference, const Function &F) const override
void InitializeELF(bool UseInitArray_)
MCSection * getSectionForMachineBasicBlock(const Function &F, const MachineBasicBlock &MBB, const TargetMachine &TM) const override
Returns a unique section for the given machine basic block.
MCSymbolRefExpr::VariantKind PLTRelativeVariantKind
MCSection * getExplicitSectionGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
Targets should implement this method to assign a section to globals with an explicit section specfied...
MCSection * getExplicitSectionGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
Targets should implement this method to assign a section to globals with an explicit section specfied...
MCSection * getSectionForLSDA(const Function &F, const MCSymbol &FnSym, const TargetMachine &TM) const override
TargetLoweringObjectFileGOFF()
MCSection * SelectSectionForGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
MCSection * getSectionForConstant(const DataLayout &DL, SectionKind Kind, const Constant *C, Align &Alignment) const override
Given a constant with the SectionKind, return a section that it should be placed in.
void getNameWithPrefix(SmallVectorImpl< char > &OutName, const GlobalValue *GV, const TargetMachine &TM) const override
MCSymbol * getCFIPersonalitySymbol(const GlobalValue *GV, const TargetMachine &TM, MachineModuleInfo *MMI) const override
MCSection * SelectSectionForGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
MCSection * getExplicitSectionGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
Targets should implement this method to assign a section to globals with an explicit section specfied...
const MCExpr * getIndirectSymViaGOTPCRel(const GlobalValue *GV, const MCSymbol *Sym, const MCValue &MV, int64_t Offset, MachineModuleInfo *MMI, MCStreamer &Streamer) const override
Get MachO PC relative GOT entry relocation.
void emitModuleMetadata(MCStreamer &Streamer, Module &M) const override
Emit the module flags that specify the garbage collection information.
void Initialize(MCContext &Ctx, const TargetMachine &TM) override
This method must be called before any actual lowering is done.
MCSection * getSectionForCommandLines() const override
If supported, return the section to use for the llvm.commandline metadata.
MCSection * getStaticDtorSection(unsigned Priority, const MCSymbol *KeySym) const override
TargetLoweringObjectFileMachO()
const MCExpr * getTTypeGlobalReference(const GlobalValue *GV, unsigned Encoding, const TargetMachine &TM, MachineModuleInfo *MMI, MCStreamer &Streamer) const override
The mach-o version of this method defaults to returning a stub reference.
void getModuleMetadata(Module &M) override
Get the module-level metadata that the platform cares about.
const MCExpr * lowerRelativeReference(const GlobalValue *LHS, const GlobalValue *RHS, const TargetMachine &TM) const override
MCSection * getStaticCtorSection(unsigned Priority, const MCSymbol *KeySym) const override
bool shouldPutJumpTableInFunctionSection(bool UsesLabelDifference, const Function &F) const override
MCSection * getStaticDtorSection(unsigned Priority, const MCSymbol *KeySym) const override
MCSection * getExplicitSectionGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
Targets should implement this method to assign a section to globals with an explicit section specfied...
MCSection * SelectSectionForGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
static bool ShouldSetSSPCanaryBitInTB(const MachineFunction *MF)
void Initialize(MCContext &Ctx, const TargetMachine &TM) override
This method must be called before any actual lowering is done.
MCSection * getSectionForTOCEntry(const MCSymbol *Sym, const TargetMachine &TM) const override
On targets that support TOC entries, return a section for the entry given the symbol it refers to.
MCSection * getSectionForExternalReference(const GlobalObject *GO, const TargetMachine &TM) const override
For external functions, this will always return a function descriptor csect.
MCSymbol * getFunctionEntryPointSymbol(const GlobalValue *Func, const TargetMachine &TM) const override
If supported, return the function entry point symbol.
bool shouldPutJumpTableInFunctionSection(bool UsesLabelDifference, const Function &F) const override
const MCExpr * lowerRelativeReference(const GlobalValue *LHS, const GlobalValue *RHS, const TargetMachine &TM) const override
MCSection * getSectionForJumpTable(const Function &F, const TargetMachine &TM) const override
static MCSymbol * getEHInfoTableSymbol(const MachineFunction *MF)
MCSection * getExplicitSectionGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
Targets should implement this method to assign a section to globals with an explicit section specfied...
MCSection * getStaticCtorSection(unsigned Priority, const MCSymbol *KeySym) const override
static XCOFF::StorageClass getStorageClassForGlobal(const GlobalValue *GV)
MCSection * getSectionForConstant(const DataLayout &DL, SectionKind Kind, const Constant *C, Align &Alignment) const override
Given a constant with the SectionKind, return a section that it should be placed in.
MCSymbol * getTargetSymbol(const GlobalValue *GV, const TargetMachine &TM) const override
For functions, this will always return a function descriptor symbol.
MCSection * getSectionForFunctionDescriptor(const Function *F, const TargetMachine &TM) const override
On targets that use separate function descriptor symbols, return a section for the descriptor given i...
static bool ShouldEmitEHBlock(const MachineFunction *MF)
MCSection * SelectSectionForGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
MCSection * getStaticDtorSection(unsigned Priority, const MCSymbol *KeySym) const override
MCSection * getSectionForLSDA(const Function &F, const MCSymbol &FnSym, const TargetMachine &TM) const override
For functions, this will return the LSDA section.
void emitCGProfileMetadata(MCStreamer &Streamer, Module &M) const
Emit Call Graph Profile metadata.
virtual void getNameWithPrefix(SmallVectorImpl< char > &OutName, const GlobalValue *GV, const TargetMachine &TM) const
MCSection * StaticDtorSection
This section contains the static destructor pointer list.
unsigned PersonalityEncoding
PersonalityEncoding, LSDAEncoding, TTypeEncoding - Some encoding values for EH.
Mangler & getMangler() const
bool SupportIndirectSymViaGOTPCRel
static SectionKind getKindForGlobal(const GlobalObject *GO, const TargetMachine &TM)
Classify the specified global variable into a set of target independent categories embodied in Sectio...
virtual bool shouldPutJumpTableInFunctionSection(bool UsesLabelDifference, const Function &F) const
bool SupportDebugThreadLocalLocation
bool supportDSOLocalEquivalentLowering() const
Target supports a native lowering of a dso_local_equivalent constant without needing to replace it wi...
virtual void Initialize(MCContext &ctx, const TargetMachine &TM)
This method must be called before any actual lowering is done.
unsigned getPersonalityEncoding() const
MCSection * StaticCtorSection
This section contains the static constructor pointer list.
bool SupportDSOLocalEquivalentLowering
virtual MCSection * getSectionForConstant(const DataLayout &DL, SectionKind Kind, const Constant *C, Align &Alignment) const
Given a constant with the SectionKind, return a section that it should be placed in.
MCSymbol * getSymbolWithGlobalValueBase(const GlobalValue *GV, StringRef Suffix, const TargetMachine &TM) const
Return the MCSymbol for a private symbol with global value name as its base, with the specified suffi...
virtual const MCExpr * getTTypeGlobalReference(const GlobalValue *GV, unsigned Encoding, const TargetMachine &TM, MachineModuleInfo *MMI, MCStreamer &Streamer) const
Return an MCExpr to use for a reference to the specified global variable from exception handling info...
unsigned CallSiteEncoding
const MCExpr * getTTypeReference(const MCSymbolRefExpr *Sym, unsigned Encoding, MCStreamer &Streamer) const
MCSection * SectionForGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const
This method computes the appropriate section to emit the specified global variable or function defini...
Primary interface to the complete machine description for the target machine.
const Triple & getTargetTriple() const
bool getUniqueBasicBlockSectionNames() const
Return true if unique basic block section names must be generated.
bool getUniqueSectionNames() const
Reloc::Model getRelocationModel() const
Returns the code generation relocation model.
MCSymbol * getSymbol(const GlobalValue *GV) const
bool getDataSections() const
Return true if data objects should be emitted into their own section, corresponds to -fdata-sections.
CodeModel::Model getCodeModel() const
Returns the code model.
bool getFunctionSections() const
Return true if functions should be emitted into their own section, corresponding to -ffunction-sectio...
const MCAsmInfo * getMCAsmInfo() const
Return target specific asm information.
unsigned XCOFFReadOnlyPointers
When set to true, const objects with relocatable address values are put into the RO data section.
unsigned UseInitArray
UseInitArray - Use .init_array instead of .ctors for static constructors.
Triple - Helper class for working with autoconf configuration names.
ArchType getArch() const
Get the parsed architecture type of this triple.
EnvironmentType getEnvironment() const
Get the parsed environment type of this triple.
bool isArch32Bit() const
Test whether the architecture is 32-bit.
Twine - A lightweight data structure for efficiently representing the concatenation of temporary valu...
std::string str() const
Return the twine contents as a std::string.
The instances of the Type class are immutable: once they are created, they are never changed.
unsigned getPointerAddressSpace() const
Get the address space of this pointer or pointer vector type.
uint64_t getArrayNumElements() const
TypeSize getPrimitiveSizeInBits() const LLVM_READONLY
Return the basic size of this type if it is a primitive type.
LLVM Value Representation.
Type * getType() const
All values are typed, get the type of this value.
LLVMContext & getContext() const
All values hold a context through their type.
StringRef getName() const
Return a constant reference to the value's name.
A raw_ostream that writes to an std::string.
A raw_ostream that writes to an SmallVector or SmallString.
This file contains the declaration of the Comdat class, which represents a single COMDAT in LLVM.
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
@ IMAGE_SCN_CNT_UNINITIALIZED_DATA
@ IMAGE_SCN_MEM_DISCARDABLE
@ IMAGE_SCN_CNT_INITIALIZED_DATA
@ IMAGE_COMDAT_SELECT_NODUPLICATES
@ IMAGE_COMDAT_SELECT_LARGEST
@ IMAGE_COMDAT_SELECT_SAME_SIZE
@ IMAGE_COMDAT_SELECT_ASSOCIATIVE
@ IMAGE_COMDAT_SELECT_EXACT_MATCH
@ IMAGE_COMDAT_SELECT_ANY
@ C
The default llvm calling convention, compatible with C.
@ SHT_LLVM_DEPENDENT_LIBRARIES
@ SHT_LLVM_LINKER_OPTIONS
@ S_MOD_TERM_FUNC_POINTERS
S_MOD_TERM_FUNC_POINTERS - Section with only function pointers for termination.
@ S_MOD_INIT_FUNC_POINTERS
S_MOD_INIT_FUNC_POINTERS - Section with only function pointers for initialization.
StorageMappingClass
Storage Mapping Class definitions.
@ XMC_TE
Symbol mapped at the end of TOC.
@ XMC_DS
Descriptor csect.
@ XMC_TL
Initialized thread-local variable.
@ XMC_RO
Read Only Constant.
@ XMC_UA
Unclassified - Treated as Read Write.
@ XMC_TD
Scalar data item in the TOC.
@ XMC_UL
Uninitialized thread-local variable.
@ XMC_BS
BSS class (uninitialized static internal)
@ XMC_TC
General TOC item.
@ XTY_CM
Common csect definition. For uninitialized storage.
@ XTY_SD
Csect definition for initialized storage.
@ XTY_ER
External reference.
initializer< Ty > init(const Ty &Val)
std::optional< const char * > toString(const std::optional< DWARFFormValue > &V)
Take an optional DWARFFormValue and try to extract a string value from it.
This is an optimization pass for GlobalISel generic memory operations.
std::string getInstrProfSectionName(InstrProfSectKind IPSK, Triple::ObjectFormatType OF, bool AddSegmentInfo=true)
Return the name of the profile section corresponding to IPSK.
bool isNoOpWithoutInvoke(EHPersonality Pers)
Return true if this personality may be safely removed if there are no invoke instructions remaining i...
OutputIt transform(R &&Range, OutputIt d_first, UnaryFunction F)
Wrapper function around std::transform to apply a function to a range and store the result elsewhere.
std::string encodeBase64(InputBytes const &Bytes)
void report_fatal_error(Error Err, bool gen_crash_diag=true)
Report a serious error, calling any installed error handler.
EHPersonality classifyEHPersonality(const Value *Pers)
See if the given exception handling personality function is one that we understand.
void emitLinkerFlagsForUsedCOFF(raw_ostream &OS, const GlobalValue *GV, const Triple &T, Mangler &M)
format_object< Ts... > format(const char *Fmt, const Ts &... Vals)
These are helper functions used to produce formatted output.
DiagnosticSeverity
Defines the different supported severity of a diagnostic.
void emitLinkerFlagsForGlobalCOFF(raw_ostream &OS, const GlobalValue *GV, const Triple &TT, Mangler &Mangler)
cl::opt< std::string > BBSectionsColdTextPrefix
@ Default
The result values are uniform if and only if all operands are uniform.
@ MCSA_ELF_TypeObject
.type _foo, STT_OBJECT # aka @object
@ MCSA_Hidden
.hidden (ELF)
GlobalVariable * collectUsedGlobalVariables(const Module &M, SmallVectorImpl< GlobalValue * > &Vec, bool CompilerUsed)
Given "llvm.used" or "llvm.compiler.used" as a global name, collect the initializer elements of that ...
constexpr const char * PseudoProbeDescMetadataName
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.
static const MBBSectionID ExceptionSectionID
static const MBBSectionID ColdSectionID