1309124Sdim//===-- HexagonTargetObjectFile.cpp ---------------------------------------===// 2234285Sdim// 3353358Sdim// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4353358Sdim// See https://llvm.org/LICENSE.txt for license information. 5353358Sdim// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6234285Sdim// 7234285Sdim//===----------------------------------------------------------------------===// 8234285Sdim// 9234285Sdim// This file contains the declarations of the HexagonTargetAsmInfo properties. 10234285Sdim// 11234285Sdim//===----------------------------------------------------------------------===// 12314564Sdim 13309124Sdim#define DEBUG_TYPE "hexagon-sdata" 14234285Sdim 15234285Sdim#include "HexagonTargetObjectFile.h" 16314564Sdim#include "llvm/ADT/SmallString.h" 17314564Sdim#include "llvm/ADT/StringRef.h" 18314564Sdim#include "llvm/ADT/Twine.h" 19321369Sdim#include "llvm/BinaryFormat/ELF.h" 20249423Sdim#include "llvm/IR/DataLayout.h" 21249423Sdim#include "llvm/IR/DerivedTypes.h" 22314564Sdim#include "llvm/IR/GlobalObject.h" 23314564Sdim#include "llvm/IR/GlobalValue.h" 24249423Sdim#include "llvm/IR/GlobalVariable.h" 25314564Sdim#include "llvm/IR/Type.h" 26234285Sdim#include "llvm/MC/MCContext.h" 27314564Sdim#include "llvm/MC/SectionKind.h" 28314564Sdim#include "llvm/Support/Casting.h" 29249423Sdim#include "llvm/Support/CommandLine.h" 30314564Sdim#include "llvm/Support/Debug.h" 31314564Sdim#include "llvm/Support/raw_ostream.h" 32314564Sdim#include "llvm/Target/TargetMachine.h" 33234285Sdim 34234285Sdimusing namespace llvm; 35234285Sdim 36309124Sdimstatic cl::opt<unsigned> SmallDataThreshold("hexagon-small-data-threshold", 37309124Sdim cl::init(8), cl::Hidden, 38309124Sdim cl::desc("The maximum size of an object in the sdata section")); 39234285Sdim 40309124Sdimstatic cl::opt<bool> NoSmallDataSorting("mno-sort-sda", cl::init(false), 41309124Sdim cl::Hidden, cl::desc("Disable small data sections sorting")); 42309124Sdim 43309124Sdimstatic cl::opt<bool> StaticsInSData("hexagon-statics-in-small-data", 44309124Sdim cl::init(false), cl::Hidden, cl::ZeroOrMore, 45309124Sdim cl::desc("Allow static variables in .sdata")); 46309124Sdim 47309124Sdimstatic cl::opt<bool> TraceGVPlacement("trace-gv-placement", 48309124Sdim cl::Hidden, cl::init(false), 49309124Sdim cl::desc("Trace global value placement")); 50309124Sdim 51321369Sdimstatic cl::opt<bool> 52321369Sdim EmitJtInText("hexagon-emit-jt-text", cl::Hidden, cl::init(false), 53321369Sdim cl::desc("Emit hexagon jump tables in function section")); 54321369Sdim 55321369Sdimstatic cl::opt<bool> 56321369Sdim EmitLutInText("hexagon-emit-lut-text", cl::Hidden, cl::init(false), 57321369Sdim cl::desc("Emit hexagon lookup tables in function section")); 58321369Sdim 59309124Sdim// TraceGVPlacement controls messages for all builds. For builds with assertions 60309124Sdim// (debug or release), messages are also controlled by the usual debug flags 61309124Sdim// (e.g. -debug and -debug-only=globallayout) 62309124Sdim#define TRACE_TO(s, X) s << X 63309124Sdim#ifdef NDEBUG 64314564Sdim#define TRACE(X) \ 65314564Sdim do { \ 66314564Sdim if (TraceGVPlacement) { \ 67314564Sdim TRACE_TO(errs(), X); \ 68314564Sdim } \ 69314564Sdim } while (false) 70309124Sdim#else 71314564Sdim#define TRACE(X) \ 72314564Sdim do { \ 73314564Sdim if (TraceGVPlacement) { \ 74314564Sdim TRACE_TO(errs(), X); \ 75314564Sdim } else { \ 76341825Sdim LLVM_DEBUG(TRACE_TO(dbgs(), X)); \ 77314564Sdim } \ 78314564Sdim } while (false) 79309124Sdim#endif 80309124Sdim 81309124Sdim// Returns true if the section name is such that the symbol will be put 82309124Sdim// in a small data section. 83309124Sdim// For instance, global variables with section attributes such as ".sdata" 84309124Sdim// ".sdata.*", ".sbss", and ".sbss.*" will go into small data. 85309124Sdimstatic bool isSmallDataSection(StringRef Sec) { 86309124Sdim // sectionName is either ".sdata" or ".sbss". Looking for an exact match 87309124Sdim // obviates the need for checks for section names such as ".sdatafoo". 88309124Sdim if (Sec.equals(".sdata") || Sec.equals(".sbss") || Sec.equals(".scommon")) 89309124Sdim return true; 90309124Sdim // If either ".sdata." or ".sbss." is a substring of the section name 91309124Sdim // then put the symbol in small data. 92309124Sdim return Sec.find(".sdata.") != StringRef::npos || 93309124Sdim Sec.find(".sbss.") != StringRef::npos || 94309124Sdim Sec.find(".scommon.") != StringRef::npos; 95309124Sdim} 96309124Sdim 97309124Sdimstatic const char *getSectionSuffixForSize(unsigned Size) { 98309124Sdim switch (Size) { 99309124Sdim default: 100309124Sdim return ""; 101309124Sdim case 1: 102309124Sdim return ".1"; 103309124Sdim case 2: 104309124Sdim return ".2"; 105309124Sdim case 4: 106309124Sdim return ".4"; 107309124Sdim case 8: 108309124Sdim return ".8"; 109309124Sdim } 110309124Sdim} 111309124Sdim 112234285Sdimvoid HexagonTargetObjectFile::Initialize(MCContext &Ctx, 113309124Sdim const TargetMachine &TM) { 114234285Sdim TargetLoweringObjectFileELF::Initialize(Ctx, TM); 115280031Sdim InitializeELF(TM.Options.UseInitArray); 116234285Sdim 117309124Sdim SmallDataSection = 118309124Sdim getContext().getELFSection(".sdata", ELF::SHT_PROGBITS, 119309124Sdim ELF::SHF_WRITE | ELF::SHF_ALLOC | 120309124Sdim ELF::SHF_HEX_GPREL); 121309124Sdim SmallBSSSection = 122309124Sdim getContext().getELFSection(".sbss", ELF::SHT_NOBITS, 123309124Sdim ELF::SHF_WRITE | ELF::SHF_ALLOC | 124309124Sdim ELF::SHF_HEX_GPREL); 125234285Sdim} 126234285Sdim 127309124SdimMCSection *HexagonTargetObjectFile::SelectSectionForGlobal( 128314564Sdim const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const { 129314564Sdim TRACE("[SelectSectionForGlobal] GO(" << GO->getName() << ") "); 130314564Sdim TRACE("input section(" << GO->getSection() << ") "); 131309124Sdim 132314564Sdim TRACE((GO->hasPrivateLinkage() ? "private_linkage " : "") 133314564Sdim << (GO->hasLocalLinkage() ? "local_linkage " : "") 134314564Sdim << (GO->hasInternalLinkage() ? "internal " : "") 135314564Sdim << (GO->hasExternalLinkage() ? "external " : "") 136314564Sdim << (GO->hasCommonLinkage() ? "common_linkage " : "") 137314564Sdim << (GO->hasCommonLinkage() ? "common " : "" ) 138309124Sdim << (Kind.isCommon() ? "kind_common " : "" ) 139309124Sdim << (Kind.isBSS() ? "kind_bss " : "" ) 140309124Sdim << (Kind.isBSSLocal() ? "kind_bss_local " : "" )); 141309124Sdim 142321369Sdim // If the lookup table is used by more than one function, do not place 143321369Sdim // it in text section. 144321369Sdim if (EmitLutInText && GO->getName().startswith("switch.table")) { 145321369Sdim if (const Function *Fn = getLutUsedFunction(GO)) 146321369Sdim return selectSectionForLookupTable(GO, TM, Fn); 147321369Sdim } 148321369Sdim 149314564Sdim if (isGlobalInSmallSection(GO, TM)) 150314564Sdim return selectSmallSectionForGlobal(GO, Kind, TM); 151309124Sdim 152309124Sdim if (Kind.isCommon()) { 153309124Sdim // This is purely for LTO+Linker Script because commons don't really have a 154309124Sdim // section. However, the BitcodeSectionWriter pass will query for the 155309124Sdim // sections of commons (and the linker expects us to know their section) so 156309124Sdim // we'll return one here. 157309124Sdim return BSSSection; 158309124Sdim } 159309124Sdim 160309124Sdim TRACE("default_ELF_section\n"); 161309124Sdim // Otherwise, we work the same as ELF. 162314564Sdim return TargetLoweringObjectFileELF::SelectSectionForGlobal(GO, Kind, TM); 163261991Sdim} 164261991Sdim 165309124SdimMCSection *HexagonTargetObjectFile::getExplicitSectionGlobal( 166314564Sdim const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const { 167314564Sdim TRACE("[getExplicitSectionGlobal] GO(" << GO->getName() << ") from(" 168314564Sdim << GO->getSection() << ") "); 169314564Sdim TRACE((GO->hasPrivateLinkage() ? "private_linkage " : "") 170314564Sdim << (GO->hasLocalLinkage() ? "local_linkage " : "") 171314564Sdim << (GO->hasInternalLinkage() ? "internal " : "") 172314564Sdim << (GO->hasExternalLinkage() ? "external " : "") 173314564Sdim << (GO->hasCommonLinkage() ? "common_linkage " : "") 174314564Sdim << (GO->hasCommonLinkage() ? "common " : "" ) 175309124Sdim << (Kind.isCommon() ? "kind_common " : "" ) 176309124Sdim << (Kind.isBSS() ? "kind_bss " : "" ) 177309124Sdim << (Kind.isBSSLocal() ? "kind_bss_local " : "" )); 178309124Sdim 179314564Sdim if (GO->hasSection()) { 180314564Sdim StringRef Section = GO->getSection(); 181309124Sdim if (Section.find(".access.text.group") != StringRef::npos) 182314564Sdim return getContext().getELFSection(GO->getSection(), ELF::SHT_PROGBITS, 183309124Sdim ELF::SHF_ALLOC | ELF::SHF_EXECINSTR); 184309124Sdim if (Section.find(".access.data.group") != StringRef::npos) 185314564Sdim return getContext().getELFSection(GO->getSection(), ELF::SHT_PROGBITS, 186309124Sdim ELF::SHF_WRITE | ELF::SHF_ALLOC); 187309124Sdim } 188309124Sdim 189314564Sdim if (isGlobalInSmallSection(GO, TM)) 190314564Sdim return selectSmallSectionForGlobal(GO, Kind, TM); 191309124Sdim 192309124Sdim // Otherwise, we work the same as ELF. 193309124Sdim TRACE("default_ELF_section\n"); 194314564Sdim return TargetLoweringObjectFileELF::getExplicitSectionGlobal(GO, Kind, TM); 195234285Sdim} 196234285Sdim 197309124Sdim/// Return true if this global value should be placed into small data/bss 198309124Sdim/// section. 199314564Sdimbool HexagonTargetObjectFile::isGlobalInSmallSection(const GlobalObject *GO, 200309124Sdim const TargetMachine &TM) const { 201344779Sdim bool HaveSData = isSmallDataEnabled(TM); 202344779Sdim if (!HaveSData) 203344779Sdim LLVM_DEBUG(dbgs() << "Small-data allocation is disabled, but symbols " 204344779Sdim "may have explicit section assignments...\n"); 205234285Sdim // Only global variables, not functions. 206341825Sdim LLVM_DEBUG(dbgs() << "Checking if value is in small-data, -G" 207341825Sdim << SmallDataThreshold << ": \"" << GO->getName() << "\": "); 208314564Sdim const GlobalVariable *GVar = dyn_cast<GlobalVariable>(GO); 209309124Sdim if (!GVar) { 210341825Sdim LLVM_DEBUG(dbgs() << "no, not a global variable\n"); 211234285Sdim return false; 212309124Sdim } 213234285Sdim 214309124Sdim // Globals with external linkage that have an original section set must be 215309124Sdim // emitted to that section, regardless of whether we would put them into 216309124Sdim // small data or not. This is how we can support mixing -G0/-G8 in LTO. 217309124Sdim if (GVar->hasSection()) { 218309124Sdim bool IsSmall = isSmallDataSection(GVar->getSection()); 219341825Sdim LLVM_DEBUG(dbgs() << (IsSmall ? "yes" : "no") 220341825Sdim << ", has section: " << GVar->getSection() << '\n'); 221309124Sdim return IsSmall; 222234285Sdim } 223234285Sdim 224344779Sdim // If sdata is disabled, stop the checks here. 225344779Sdim if (!HaveSData) { 226344779Sdim LLVM_DEBUG(dbgs() << "no, small-data allocation is disabled\n"); 227344779Sdim return false; 228344779Sdim } 229344779Sdim 230309124Sdim if (GVar->isConstant()) { 231341825Sdim LLVM_DEBUG(dbgs() << "no, is a constant\n"); 232309124Sdim return false; 233309124Sdim } 234309124Sdim 235309124Sdim bool IsLocal = GVar->hasLocalLinkage(); 236309124Sdim if (!StaticsInSData && IsLocal) { 237341825Sdim LLVM_DEBUG(dbgs() << "no, is static\n"); 238309124Sdim return false; 239309124Sdim } 240309124Sdim 241353358Sdim Type *GType = GVar->getValueType(); 242309124Sdim if (isa<ArrayType>(GType)) { 243341825Sdim LLVM_DEBUG(dbgs() << "no, is an array\n"); 244309124Sdim return false; 245309124Sdim } 246309124Sdim 247309124Sdim // If the type is a struct with no body provided, treat is conservatively. 248309124Sdim // There cannot be actual definitions of object of such a type in this CU 249309124Sdim // (only references), so assuming that they are not in sdata is safe. If 250309124Sdim // these objects end up in the sdata, the references will still be valid. 251309124Sdim if (StructType *ST = dyn_cast<StructType>(GType)) { 252309124Sdim if (ST->isOpaque()) { 253341825Sdim LLVM_DEBUG(dbgs() << "no, has opaque type\n"); 254309124Sdim return false; 255309124Sdim } 256309124Sdim } 257309124Sdim 258309124Sdim unsigned Size = GVar->getParent()->getDataLayout().getTypeAllocSize(GType); 259309124Sdim if (Size == 0) { 260341825Sdim LLVM_DEBUG(dbgs() << "no, has size 0\n"); 261309124Sdim return false; 262309124Sdim } 263309124Sdim if (Size > SmallDataThreshold) { 264341825Sdim LLVM_DEBUG(dbgs() << "no, size exceeds sdata threshold: " << Size << '\n'); 265309124Sdim return false; 266309124Sdim } 267309124Sdim 268341825Sdim LLVM_DEBUG(dbgs() << "yes\n"); 269309124Sdim return true; 270234285Sdim} 271234285Sdim 272344779Sdimbool HexagonTargetObjectFile::isSmallDataEnabled(const TargetMachine &TM) 273344779Sdim const { 274344779Sdim return SmallDataThreshold > 0 && !TM.isPositionIndependent(); 275309124Sdim} 276309124Sdim 277309124Sdimunsigned HexagonTargetObjectFile::getSmallDataSize() const { 278309124Sdim return SmallDataThreshold; 279309124Sdim} 280309124Sdim 281321369Sdimbool HexagonTargetObjectFile::shouldPutJumpTableInFunctionSection( 282321369Sdim bool UsesLabelDifference, const Function &F) const { 283321369Sdim return EmitJtInText; 284321369Sdim} 285321369Sdim 286309124Sdim/// Descends any type down to "elementary" components, 287309124Sdim/// discovering the smallest addressable one. 288309124Sdim/// If zero is returned, declaration will not be modified. 289309124Sdimunsigned HexagonTargetObjectFile::getSmallestAddressableSize(const Type *Ty, 290309124Sdim const GlobalValue *GV, const TargetMachine &TM) const { 291309124Sdim // Assign the smallest element access size to the highest 292309124Sdim // value which assembler can handle. 293309124Sdim unsigned SmallestElement = 8; 294309124Sdim 295309124Sdim if (!Ty) 296309124Sdim return 0; 297309124Sdim switch (Ty->getTypeID()) { 298309124Sdim case Type::StructTyID: { 299309124Sdim const StructType *STy = cast<const StructType>(Ty); 300309124Sdim for (auto &E : STy->elements()) { 301309124Sdim unsigned AtomicSize = getSmallestAddressableSize(E, GV, TM); 302309124Sdim if (AtomicSize < SmallestElement) 303309124Sdim SmallestElement = AtomicSize; 304309124Sdim } 305309124Sdim return (STy->getNumElements() == 0) ? 0 : SmallestElement; 306309124Sdim } 307309124Sdim case Type::ArrayTyID: { 308309124Sdim const ArrayType *ATy = cast<const ArrayType>(Ty); 309309124Sdim return getSmallestAddressableSize(ATy->getElementType(), GV, TM); 310309124Sdim } 311309124Sdim case Type::VectorTyID: { 312309124Sdim const VectorType *PTy = cast<const VectorType>(Ty); 313309124Sdim return getSmallestAddressableSize(PTy->getElementType(), GV, TM); 314309124Sdim } 315309124Sdim case Type::PointerTyID: 316309124Sdim case Type::HalfTyID: 317309124Sdim case Type::FloatTyID: 318309124Sdim case Type::DoubleTyID: 319309124Sdim case Type::IntegerTyID: { 320309124Sdim const DataLayout &DL = GV->getParent()->getDataLayout(); 321309124Sdim // It is unfortunate that DL's function take non-const Type*. 322309124Sdim return DL.getTypeAllocSize(const_cast<Type*>(Ty)); 323309124Sdim } 324309124Sdim case Type::FunctionTyID: 325309124Sdim case Type::VoidTyID: 326309124Sdim case Type::X86_FP80TyID: 327309124Sdim case Type::FP128TyID: 328309124Sdim case Type::PPC_FP128TyID: 329309124Sdim case Type::LabelTyID: 330309124Sdim case Type::MetadataTyID: 331309124Sdim case Type::X86_MMXTyID: 332309124Sdim case Type::TokenTyID: 333309124Sdim return 0; 334309124Sdim } 335309124Sdim 336309124Sdim return 0; 337309124Sdim} 338309124Sdim 339309124SdimMCSection *HexagonTargetObjectFile::selectSmallSectionForGlobal( 340314564Sdim const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const { 341353358Sdim const Type *GTy = GO->getValueType(); 342314564Sdim unsigned Size = getSmallestAddressableSize(GTy, GO, TM); 343309124Sdim 344309124Sdim // If we have -ffunction-section or -fdata-section then we should emit the 345309124Sdim // global value to a unique section specifically for it... even for sdata. 346309124Sdim bool EmitUniquedSection = TM.getDataSections(); 347309124Sdim 348309124Sdim TRACE("Small data. Size(" << Size << ")"); 349234285Sdim // Handle Small Section classification here. 350309124Sdim if (Kind.isBSS() || Kind.isBSSLocal()) { 351309124Sdim // If -mno-sort-sda is not set, find out smallest accessible entity in 352309124Sdim // declaration and add it to the section name string. 353309124Sdim // Note. It does not track the actual usage of the value, only its de- 354309124Sdim // claration. Also, compiler adds explicit pad fields to some struct 355309124Sdim // declarations - they are currently counted towards smallest addres- 356309124Sdim // sable entity. 357309124Sdim if (NoSmallDataSorting) { 358309124Sdim TRACE(" default sbss\n"); 359309124Sdim return SmallBSSSection; 360309124Sdim } 361234285Sdim 362309124Sdim StringRef Prefix(".sbss"); 363309124Sdim SmallString<128> Name(Prefix); 364309124Sdim Name.append(getSectionSuffixForSize(Size)); 365309124Sdim 366309124Sdim if (EmitUniquedSection) { 367309124Sdim Name.append("."); 368314564Sdim Name.append(GO->getName()); 369309124Sdim } 370309124Sdim TRACE(" unique sbss(" << Name << ")\n"); 371309124Sdim return getContext().getELFSection(Name.str(), ELF::SHT_NOBITS, 372309124Sdim ELF::SHF_WRITE | ELF::SHF_ALLOC | ELF::SHF_HEX_GPREL); 373309124Sdim } 374309124Sdim 375309124Sdim if (Kind.isCommon()) { 376309124Sdim // This is purely for LTO+Linker Script because commons don't really have a 377309124Sdim // section. However, the BitcodeSectionWriter pass will query for the 378309124Sdim // sections of commons (and the linker expects us to know their section) so 379309124Sdim // we'll return one here. 380309124Sdim if (NoSmallDataSorting) 381309124Sdim return BSSSection; 382309124Sdim 383309124Sdim Twine Name = Twine(".scommon") + getSectionSuffixForSize(Size); 384309124Sdim TRACE(" small COMMON (" << Name << ")\n"); 385309124Sdim 386309124Sdim return getContext().getELFSection(Name.str(), ELF::SHT_NOBITS, 387309124Sdim ELF::SHF_WRITE | ELF::SHF_ALLOC | 388309124Sdim ELF::SHF_HEX_GPREL); 389309124Sdim } 390309124Sdim 391309124Sdim // We could have changed sdata object to a constant... in this 392309124Sdim // case the Kind could be wrong for it. 393309124Sdim if (Kind.isMergeableConst()) { 394309124Sdim TRACE(" const_object_as_data "); 395314564Sdim const GlobalVariable *GVar = dyn_cast<GlobalVariable>(GO); 396309124Sdim if (GVar->hasSection() && isSmallDataSection(GVar->getSection())) 397309124Sdim Kind = SectionKind::getData(); 398309124Sdim } 399309124Sdim 400309124Sdim if (Kind.isData()) { 401309124Sdim if (NoSmallDataSorting) { 402309124Sdim TRACE(" default sdata\n"); 403309124Sdim return SmallDataSection; 404309124Sdim } 405309124Sdim 406309124Sdim StringRef Prefix(".sdata"); 407309124Sdim SmallString<128> Name(Prefix); 408309124Sdim Name.append(getSectionSuffixForSize(Size)); 409309124Sdim 410309124Sdim if (EmitUniquedSection) { 411309124Sdim Name.append("."); 412314564Sdim Name.append(GO->getName()); 413309124Sdim } 414309124Sdim TRACE(" unique sdata(" << Name << ")\n"); 415309124Sdim return getContext().getELFSection(Name.str(), ELF::SHT_PROGBITS, 416309124Sdim ELF::SHF_WRITE | ELF::SHF_ALLOC | ELF::SHF_HEX_GPREL); 417309124Sdim } 418309124Sdim 419309124Sdim TRACE("default ELF section\n"); 420234285Sdim // Otherwise, we work the same as ELF. 421314564Sdim return TargetLoweringObjectFileELF::SelectSectionForGlobal(GO, Kind, TM); 422234285Sdim} 423321369Sdim 424321369Sdim// Return the function that uses the lookup table. If there are more 425321369Sdim// than one live function that uses this look table, bail out and place 426321369Sdim// the lookup table in default section. 427321369Sdimconst Function * 428321369SdimHexagonTargetObjectFile::getLutUsedFunction(const GlobalObject *GO) const { 429321369Sdim const Function *ReturnFn = nullptr; 430321369Sdim for (auto U : GO->users()) { 431321369Sdim // validate each instance of user to be a live function. 432321369Sdim auto *I = dyn_cast<Instruction>(U); 433321369Sdim if (!I) 434321369Sdim continue; 435321369Sdim auto *Bb = I->getParent(); 436321369Sdim if (!Bb) 437321369Sdim continue; 438321369Sdim auto *UserFn = Bb->getParent(); 439321369Sdim if (!ReturnFn) 440321369Sdim ReturnFn = UserFn; 441321369Sdim else if (ReturnFn != UserFn) 442321369Sdim return nullptr; 443321369Sdim } 444321369Sdim return ReturnFn; 445321369Sdim} 446321369Sdim 447321369SdimMCSection *HexagonTargetObjectFile::selectSectionForLookupTable( 448321369Sdim const GlobalObject *GO, const TargetMachine &TM, const Function *Fn) const { 449321369Sdim 450321369Sdim SectionKind Kind = SectionKind::getText(); 451321369Sdim // If the function has explicit section, place the lookup table in this 452321369Sdim // explicit section. 453321369Sdim if (Fn->hasSection()) 454321369Sdim return getExplicitSectionGlobal(Fn, Kind, TM); 455321369Sdim 456321369Sdim const auto *FuncObj = dyn_cast<GlobalObject>(Fn); 457321369Sdim return SelectSectionForGlobal(FuncObj, Kind, TM); 458321369Sdim} 459