[llvm] [llvm] Use StringRef::operator== instead of StringRef::equals (NFC) (PR #91441)

via llvm-commits llvm-commits at lists.llvm.org
Wed May 8 00:50:07 PDT 2024


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-debuginfo

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>

I'm planning to remove StringRef::equals in favor of
StringRef::operator==.

- StringRef::operator==/!= outnumber StringRef::equals by a factor of
  70 under llvm/ in terms of their usage.

- The elimination of StringRef::equals brings StringRef closer to
  std::string_view, which has operator== but not equals.

- S == "foo" is more readable than S.equals("foo"), especially for
  !Long.Expression.equals("str") vs Long.Expression != "str".

---

Patch is 28.04 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/91441.diff


34 Files Affected:

- (modified) llvm/include/llvm/ADT/SmallString.h (+1-1) 
- (modified) llvm/lib/Bitcode/Reader/BitcodeReader.cpp (+1-1) 
- (modified) llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp (+1-1) 
- (modified) llvm/lib/FileCheck/FileCheck.cpp (+1-1) 
- (modified) llvm/lib/FuzzMutate/FuzzerCLI.cpp (+3-3) 
- (modified) llvm/lib/LTO/LTOModule.cpp (+1-1) 
- (modified) llvm/lib/MC/MCAsmStreamer.cpp (+1-1) 
- (modified) llvm/lib/MC/MCParser/AsmParser.cpp (+1-1) 
- (modified) llvm/lib/MC/MCParser/DarwinAsmParser.cpp (+1-1) 
- (modified) llvm/lib/MC/MCSymbolXCOFF.cpp (+2-2) 
- (modified) llvm/lib/Object/Archive.cpp (+2-2) 
- (modified) llvm/lib/Object/MachOObjectFile.cpp (+2-2) 
- (modified) llvm/lib/Object/OffloadBinary.cpp (+1-1) 
- (modified) llvm/lib/ObjectYAML/COFFEmitter.cpp (+2-2) 
- (modified) llvm/lib/Passes/StandardInstrumentations.cpp (+1-2) 
- (modified) llvm/lib/ProfileData/GCOV.cpp (+1-1) 
- (modified) llvm/lib/ProfileData/InstrProf.cpp (+1-1) 
- (modified) llvm/lib/ProfileData/MemProfReader.cpp (+3-3) 
- (modified) llvm/lib/Support/VirtualFileSystem.cpp (+2-2) 
- (modified) llvm/lib/TargetParser/ARMTargetParser.cpp (+1-1) 
- (modified) llvm/lib/TargetParser/Triple.cpp (+3-3) 
- (modified) llvm/tools/dsymutil/DwarfLinkerForBinary.cpp (+1-1) 
- (modified) llvm/tools/llvm-dwarfdump/Statistics.cpp (+1-1) 
- (modified) llvm/tools/llvm-extract/llvm-extract.cpp (+1-1) 
- (modified) llvm/tools/llvm-objdump/MachODump.cpp (+1-1) 
- (modified) llvm/tools/llvm-xray/xray-graph-diff.cpp (+2-2) 
- (modified) llvm/tools/llvm-yaml-numeric-parser-fuzzer/yaml-numeric-parser-fuzzer.cpp (+1-1) 
- (modified) llvm/unittests/ADT/StringRefTest.cpp (+3-3) 
- (modified) llvm/unittests/IR/VerifierTest.cpp (+18-18) 
- (modified) llvm/unittests/Support/MemoryBufferTest.cpp (+11-11) 
- (modified) llvm/unittests/Support/YAMLIOTest.cpp (+4-4) 
- (modified) llvm/unittests/TargetParser/CSKYTargetParserTest.cpp (+1-1) 
- (modified) llvm/unittests/TargetParser/TargetParserTest.cpp (+2-2) 
- (modified) llvm/utils/TableGen/AsmMatcherEmitter.cpp (+1-1) 


``````````diff
diff --git a/llvm/include/llvm/ADT/SmallString.h b/llvm/include/llvm/ADT/SmallString.h
index a5b9eec50c825..be3193c6ef9be 100644
--- a/llvm/include/llvm/ADT/SmallString.h
+++ b/llvm/include/llvm/ADT/SmallString.h
@@ -89,7 +89,7 @@ class SmallString : public SmallVector<char, InternalLen> {
 
   /// Check for string equality.  This is more efficient than compare() when
   /// the relative ordering of inequal strings isn't needed.
-  [[nodiscard]] bool equals(StringRef RHS) const { return str().equals(RHS); }
+  [[nodiscard]] bool equals(StringRef RHS) const { return str() == RHS; }
 
   /// Check for string equality, ignoring case.
   [[nodiscard]] bool equals_insensitive(StringRef RHS) const {
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index 73fe63b5b8f6f..be2381cd7d779 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -6896,7 +6896,7 @@ Error BitcodeReader::materialize(GlobalValue *GV) {
         MDString *MDS = cast<MDString>(MD->getOperand(0));
         StringRef ProfName = MDS->getString();
         // Check consistency of !prof branch_weights metadata.
-        if (!ProfName.equals("branch_weights"))
+        if (ProfName != "branch_weights")
           continue;
         unsigned ExpectedNumOperands = 0;
         if (BranchInst *BI = dyn_cast<BranchInst>(&I))
diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
index edeb563076fdc..eaf8c35142def 100644
--- a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
+++ b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
@@ -659,7 +659,7 @@ void RuntimeDyldELF::setMipsABI(const ObjectFile &Obj) {
     IsMipsO32ABI = AbiVariant & ELF::EF_MIPS_ABI_O32;
     IsMipsN32ABI = AbiVariant & ELF::EF_MIPS_ABI2;
   }
-  IsMipsN64ABI = Obj.getFileFormatName().equals("elf64-mips");
+  IsMipsN64ABI = Obj.getFileFormatName() == "elf64-mips";
 }
 
 // Return the .TOC. section and offset.
diff --git a/llvm/lib/FileCheck/FileCheck.cpp b/llvm/lib/FileCheck/FileCheck.cpp
index 8f80a69c4abd3..1719f8ef2b436 100644
--- a/llvm/lib/FileCheck/FileCheck.cpp
+++ b/llvm/lib/FileCheck/FileCheck.cpp
@@ -374,7 +374,7 @@ Expected<NumericVariable *> Pattern::parseNumericVariableDefinition(
 Expected<std::unique_ptr<NumericVariableUse>> Pattern::parseNumericVariableUse(
     StringRef Name, bool IsPseudo, std::optional<size_t> LineNumber,
     FileCheckPatternContext *Context, const SourceMgr &SM) {
-  if (IsPseudo && !Name.equals("@LINE"))
+  if (IsPseudo && Name != "@LINE")
     return ErrorDiagnostic::get(
         SM, Name, "invalid pseudo numeric variable '" + Name + "'");
 
diff --git a/llvm/lib/FuzzMutate/FuzzerCLI.cpp b/llvm/lib/FuzzMutate/FuzzerCLI.cpp
index 58e4b74f4b228..504532865440f 100644
--- a/llvm/lib/FuzzMutate/FuzzerCLI.cpp
+++ b/llvm/lib/FuzzMutate/FuzzerCLI.cpp
@@ -21,7 +21,7 @@ void llvm::parseFuzzerCLOpts(int ArgC, char *ArgV[]) {
 
   int I = 1;
   while (I < ArgC)
-    if (StringRef(ArgV[I++]).equals("-ignore_remaining_args=1"))
+    if (StringRef(ArgV[I++]) == "-ignore_remaining_args=1")
       break;
   while (I < ArgC)
     CLArgs.push_back(ArgV[I++]);
@@ -39,7 +39,7 @@ void llvm::handleExecNameEncodedBEOpts(StringRef ExecName) {
   SmallVector<StringRef, 4> Opts;
   NameAndArgs.second.split(Opts, '-');
   for (StringRef Opt : Opts) {
-    if (Opt.equals("gisel")) {
+    if (Opt == "gisel") {
       Args.push_back("-global-isel");
       // For now we default GlobalISel to -O0
       Args.push_back("-O0");
@@ -151,7 +151,7 @@ int llvm::runFuzzerOnInputs(int ArgC, char *ArgV[], FuzzerTestFun TestOne,
   for (int I = 1; I < ArgC; ++I) {
     StringRef Arg(ArgV[I]);
     if (Arg.starts_with("-")) {
-      if (Arg.equals("-ignore_remaining_args=1"))
+      if (Arg == "-ignore_remaining_args=1")
         break;
       continue;
     }
diff --git a/llvm/lib/LTO/LTOModule.cpp b/llvm/lib/LTO/LTOModule.cpp
index f839fe944e18f..eac78069f4d2b 100644
--- a/llvm/lib/LTO/LTOModule.cpp
+++ b/llvm/lib/LTO/LTOModule.cpp
@@ -694,7 +694,7 @@ bool LTOModule::hasCtorDtor() const {
     if (auto *GV = dyn_cast_if_present<GlobalValue *>(Sym)) {
       StringRef Name = GV->getName();
       if (Name.consume_front("llvm.global_")) {
-        if (Name.equals("ctors") || Name.equals("dtors"))
+        if (Name == "ctors" || Name == "dtors")
           return true;
       }
     }
diff --git a/llvm/lib/MC/MCAsmStreamer.cpp b/llvm/lib/MC/MCAsmStreamer.cpp
index 3dc70a4015892..f257d0d9e83f7 100644
--- a/llvm/lib/MC/MCAsmStreamer.cpp
+++ b/llvm/lib/MC/MCAsmStreamer.cpp
@@ -468,7 +468,7 @@ void MCAsmStreamer::emitRawComment(const Twine &T, bool TabPrefix) {
 
 void MCAsmStreamer::addExplicitComment(const Twine &T) {
   StringRef c = T.getSingleStringRef();
-  if (c.equals(StringRef(MAI->getSeparatorString())))
+  if (c == MAI->getSeparatorString())
     return;
   if (c.starts_with(StringRef("//"))) {
     ExplicitCommentToEmit.append("\t");
diff --git a/llvm/lib/MC/MCParser/AsmParser.cpp b/llvm/lib/MC/MCParser/AsmParser.cpp
index 76a3e501f4590..8d9acd54e8797 100644
--- a/llvm/lib/MC/MCParser/AsmParser.cpp
+++ b/llvm/lib/MC/MCParser/AsmParser.cpp
@@ -4543,7 +4543,7 @@ bool AsmParser::parseDirectiveMacro(SMLoc DirectiveLoc) {
 
     // Emit an error if two (or more) named parameters share the same name
     for (const MCAsmMacroParameter& CurrParam : Parameters)
-      if (CurrParam.Name.equals(Parameter.Name))
+      if (CurrParam.Name == Parameter.Name)
         return TokError("macro '" + Name + "' has multiple parameters"
                         " named '" + Parameter.Name + "'");
 
diff --git a/llvm/lib/MC/MCParser/DarwinAsmParser.cpp b/llvm/lib/MC/MCParser/DarwinAsmParser.cpp
index 3cd44e7195be6..a97b72997ae39 100644
--- a/llvm/lib/MC/MCParser/DarwinAsmParser.cpp
+++ b/llvm/lib/MC/MCParser/DarwinAsmParser.cpp
@@ -705,7 +705,7 @@ bool DarwinAsmParser::parseDirectiveSection(StringRef, SMLoc) {
                                    .Case("__datacoal_nt", "__data")
                                    .Default(Section);
 
-    if (!Section.equals(NonCoalSection)) {
+    if (Section != NonCoalSection) {
       StringRef SectionVal(Loc.getPointer());
       size_t B = SectionVal.find(',') + 1, E = SectionVal.find(',', B);
       SMLoc BLoc = SMLoc::getFromPointer(SectionVal.data() + B);
diff --git a/llvm/lib/MC/MCSymbolXCOFF.cpp b/llvm/lib/MC/MCSymbolXCOFF.cpp
index b4c96a1ffa233..599a3946a1ed7 100644
--- a/llvm/lib/MC/MCSymbolXCOFF.cpp
+++ b/llvm/lib/MC/MCSymbolXCOFF.cpp
@@ -13,7 +13,7 @@ using namespace llvm;
 MCSectionXCOFF *MCSymbolXCOFF::getRepresentedCsect() const {
   assert(RepresentedCsect &&
          "Trying to get csect representation of this symbol but none was set.");
-  assert(getSymbolTableName().equals(RepresentedCsect->getSymbolTableName()) &&
+  assert(getSymbolTableName() == RepresentedCsect->getSymbolTableName() &&
          "SymbolTableNames need to be the same for this symbol and its csect "
          "representation.");
   return RepresentedCsect;
@@ -24,7 +24,7 @@ void MCSymbolXCOFF::setRepresentedCsect(MCSectionXCOFF *C) {
   assert((!RepresentedCsect || RepresentedCsect == C) &&
          "Trying to set a csect that doesn't match the one that this symbol is "
          "already mapped to.");
-  assert(getSymbolTableName().equals(C->getSymbolTableName()) &&
+  assert(getSymbolTableName() == C->getSymbolTableName() &&
          "SymbolTableNames need to be the same for this symbol and its csect "
          "representation.");
   RepresentedCsect = C;
diff --git a/llvm/lib/Object/Archive.cpp b/llvm/lib/Object/Archive.cpp
index 6139d9996bdad..e798bbdd16f14 100644
--- a/llvm/lib/Object/Archive.cpp
+++ b/llvm/lib/Object/Archive.cpp
@@ -269,11 +269,11 @@ Expected<StringRef> ArchiveMemberHeader::getName(uint64_t Size) const {
       return Name;
     // System libraries from the Windows SDK for Windows 11 contain this symbol.
     // It looks like a CFG guard: we just skip it for now.
-    if (Name.equals("/<XFGHASHMAP>/"))
+    if (Name == "/<XFGHASHMAP>/")
       return Name;
     // Some libraries (e.g., arm64rt.lib) from the Windows WDK
     // (version 10.0.22000.0) contain this undocumented special member.
-    if (Name.equals("/<ECSYMBOLS>/"))
+    if (Name == "/<ECSYMBOLS>/")
       return Name;
     // It's a long name.
     // Get the string table offset.
diff --git a/llvm/lib/Object/MachOObjectFile.cpp b/llvm/lib/Object/MachOObjectFile.cpp
index 1cfd0a069463e..06186ad362aad 100644
--- a/llvm/lib/Object/MachOObjectFile.cpp
+++ b/llvm/lib/Object/MachOObjectFile.cpp
@@ -399,7 +399,7 @@ static Error parseSegmentLoadCommand(
       return malformedError("load command " + Twine(LoadCommandIndex) +
                             " filesize field in " + CmdName +
                             " greater than vmsize field");
-    IsPageZeroSegment |= StringRef("__PAGEZERO").equals(S.segname);
+    IsPageZeroSegment |= StringRef("__PAGEZERO") == S.segname;
   } else
     return SegOrErr.takeError();
 
@@ -4364,7 +4364,7 @@ BindRebaseSegInfo::BindRebaseSegInfo(const object::MachOObjectFile *Obj) {
     Info.Size = Section.getSize();
     Info.SegmentName =
         Obj->getSectionFinalSegmentName(Section.getRawDataRefImpl());
-    if (!Info.SegmentName.equals(CurSegName)) {
+    if (Info.SegmentName != CurSegName) {
       ++CurSegIndex;
       CurSegName = Info.SegmentName;
       CurSegAddress = Info.Address;
diff --git a/llvm/lib/Object/OffloadBinary.cpp b/llvm/lib/Object/OffloadBinary.cpp
index 6e9f8bed513c1..89dc12551494f 100644
--- a/llvm/lib/Object/OffloadBinary.cpp
+++ b/llvm/lib/Object/OffloadBinary.cpp
@@ -359,7 +359,7 @@ bool object::areTargetsCompatible(const OffloadFile::TargetID &LHS,
     return false;
 
   // If the architecture is "all" we assume it is always compatible.
-  if (LHS.second.equals("generic") || RHS.second.equals("generic"))
+  if (LHS.second == "generic" || RHS.second == "generic")
     return true;
 
   // Only The AMDGPU target requires additional checks.
diff --git a/llvm/lib/ObjectYAML/COFFEmitter.cpp b/llvm/lib/ObjectYAML/COFFEmitter.cpp
index 7088223b9b672..bb46de4c6f57f 100644
--- a/llvm/lib/ObjectYAML/COFFEmitter.cpp
+++ b/llvm/lib/ObjectYAML/COFFEmitter.cpp
@@ -359,9 +359,9 @@ static uint32_t initializeOptionalHeader(COFFParser &CP, uint16_t Magic,
       SizeOfInitializedData += S.Header.SizeOfRawData;
     if (S.Header.Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)
       SizeOfUninitializedData += S.Header.SizeOfRawData;
-    if (S.Name.equals(".text"))
+    if (S.Name == ".text")
       Header->BaseOfCode = S.Header.VirtualAddress; // RVA
-    else if (S.Name.equals(".data"))
+    else if (S.Name == ".data")
       BaseOfData = S.Header.VirtualAddress; // RVA
     if (S.Header.VirtualAddress)
       SizeOfImage += alignTo(S.Header.VirtualSize, Header->SectionAlignment);
diff --git a/llvm/lib/Passes/StandardInstrumentations.cpp b/llvm/lib/Passes/StandardInstrumentations.cpp
index 79aff096fb085..c7adc7668b9a1 100644
--- a/llvm/lib/Passes/StandardInstrumentations.cpp
+++ b/llvm/lib/Passes/StandardInstrumentations.cpp
@@ -822,8 +822,7 @@ PrintIRInstrumentation::PassRunDescriptor
 PrintIRInstrumentation::popPassRunDescriptor(StringRef PassID) {
   assert(!PassRunDescriptorStack.empty() && "empty PassRunDescriptorStack");
   PassRunDescriptor Descriptor = PassRunDescriptorStack.pop_back_val();
-  assert(Descriptor.PassID.equals(PassID) &&
-         "malformed PassRunDescriptorStack");
+  assert(Descriptor.PassID == PassID && "malformed PassRunDescriptorStack");
   return Descriptor;
 }
 
diff --git a/llvm/lib/ProfileData/GCOV.cpp b/llvm/lib/ProfileData/GCOV.cpp
index ee61784abade5..ecb12c045b5b1 100644
--- a/llvm/lib/ProfileData/GCOV.cpp
+++ b/llvm/lib/ProfileData/GCOV.cpp
@@ -678,7 +678,7 @@ std::string Context::getCoveragePath(StringRef filename,
     return std::string(filename);
 
   std::string CoveragePath;
-  if (options.LongFileNames && !filename.equals(mainFilename))
+  if (options.LongFileNames && filename != mainFilename)
     CoveragePath =
         mangleCoveragePath(mainFilename, options.PreservePaths) + "##";
   CoveragePath += mangleCoveragePath(filename, options.PreservePaths);
diff --git a/llvm/lib/ProfileData/InstrProf.cpp b/llvm/lib/ProfileData/InstrProf.cpp
index f9ba80bd99c85..1e3ca47b3d5aa 100644
--- a/llvm/lib/ProfileData/InstrProf.cpp
+++ b/llvm/lib/ProfileData/InstrProf.cpp
@@ -1283,7 +1283,7 @@ MDNode *mayHaveValueProfileOfKind(const Instruction &Inst,
     return nullptr;
 
   MDString *Tag = cast<MDString>(MD->getOperand(0));
-  if (!Tag || !Tag->getString().equals("VP"))
+  if (!Tag || Tag->getString() != "VP")
     return nullptr;
 
   // Now check kind:
diff --git a/llvm/lib/ProfileData/MemProfReader.cpp b/llvm/lib/ProfileData/MemProfReader.cpp
index b4d2c6f043f6d..c25babac844ac 100644
--- a/llvm/lib/ProfileData/MemProfReader.cpp
+++ b/llvm/lib/ProfileData/MemProfReader.cpp
@@ -164,9 +164,9 @@ bool isRuntimePath(const StringRef Path) {
   const StringRef Filename = llvm::sys::path::filename(Path);
   // This list should be updated in case new files with additional interceptors
   // are added to the memprof runtime.
-  return Filename.equals("memprof_malloc_linux.cpp") ||
-         Filename.equals("memprof_interceptors.cpp") ||
-         Filename.equals("memprof_new_delete.cpp");
+  return Filename == "memprof_malloc_linux.cpp" ||
+         Filename == "memprof_interceptors.cpp" ||
+         Filename == "memprof_new_delete.cpp";
 }
 
 std::string getBuildIdString(const SegmentEntry &Entry) {
diff --git a/llvm/lib/Support/VirtualFileSystem.cpp b/llvm/lib/Support/VirtualFileSystem.cpp
index 54b9c38f76095..fcefdef992be5 100644
--- a/llvm/lib/Support/VirtualFileSystem.cpp
+++ b/llvm/lib/Support/VirtualFileSystem.cpp
@@ -1725,7 +1725,7 @@ class llvm::vfs::RedirectingFileSystemParser {
                       RedirectingFileSystem::Entry *ParentEntry = nullptr) {
     if (!ParentEntry) { // Look for a existent root
       for (const auto &Root : FS->Roots) {
-        if (Name.equals(Root->getName())) {
+        if (Name == Root->getName()) {
           ParentEntry = Root.get();
           return ParentEntry;
         }
@@ -1736,7 +1736,7 @@ class llvm::vfs::RedirectingFileSystemParser {
            llvm::make_range(DE->contents_begin(), DE->contents_end())) {
         auto *DirContent =
             dyn_cast<RedirectingFileSystem::DirectoryEntry>(Content.get());
-        if (DirContent && Name.equals(Content->getName()))
+        if (DirContent && Name == Content->getName())
           return DirContent;
       }
     }
diff --git a/llvm/lib/TargetParser/ARMTargetParser.cpp b/llvm/lib/TargetParser/ARMTargetParser.cpp
index 67f937ebc33f9..9d9917d86a368 100644
--- a/llvm/lib/TargetParser/ARMTargetParser.cpp
+++ b/llvm/lib/TargetParser/ARMTargetParser.cpp
@@ -610,7 +610,7 @@ StringRef ARM::getARMCPUForArch(const llvm::Triple &Triple, StringRef MArch) {
     return StringRef();
 
   StringRef CPU = llvm::ARM::getDefaultCPU(MArch);
-  if (!CPU.empty() && !CPU.equals("invalid"))
+  if (!CPU.empty() && CPU != "invalid")
     return CPU;
 
   // If no specific architecture version is requested, return the minimum CPU
diff --git a/llvm/lib/TargetParser/Triple.cpp b/llvm/lib/TargetParser/Triple.cpp
index f3f244c814e7e..b4b2fa3b0b85e 100644
--- a/llvm/lib/TargetParser/Triple.cpp
+++ b/llvm/lib/TargetParser/Triple.cpp
@@ -348,14 +348,14 @@ StringRef Triple::getObjectFormatTypeName(ObjectFormatType Kind) {
 }
 
 static Triple::ArchType parseBPFArch(StringRef ArchName) {
-  if (ArchName.equals("bpf")) {
+  if (ArchName == "bpf") {
     if (sys::IsLittleEndianHost)
       return Triple::bpfel;
     else
       return Triple::bpfeb;
-  } else if (ArchName.equals("bpf_be") || ArchName.equals("bpfeb")) {
+  } else if (ArchName == "bpf_be" || ArchName == "bpfeb") {
     return Triple::bpfeb;
-  } else if (ArchName.equals("bpf_le") || ArchName.equals("bpfel")) {
+  } else if (ArchName == "bpf_le" || ArchName == "bpfel") {
     return Triple::bpfel;
   } else {
     return Triple::UnknownArch;
diff --git a/llvm/tools/dsymutil/DwarfLinkerForBinary.cpp b/llvm/tools/dsymutil/DwarfLinkerForBinary.cpp
index 7246ba45d5afc..83473704398df 100644
--- a/llvm/tools/dsymutil/DwarfLinkerForBinary.cpp
+++ b/llvm/tools/dsymutil/DwarfLinkerForBinary.cpp
@@ -705,7 +705,7 @@ bool DwarfLinkerForBinary::linkImpl(
     } else {
       // Try and emit more helpful warnings by applying some heuristics.
       StringRef ObjFile = ContainerName;
-      bool IsClangModule = sys::path::extension(Path).equals(".pcm");
+      bool IsClangModule = sys::path::extension(Path) == ".pcm";
       bool IsArchive = ObjFile.ends_with(")");
 
       if (IsClangModule) {
diff --git a/llvm/tools/llvm-dwarfdump/Statistics.cpp b/llvm/tools/llvm-dwarfdump/Statistics.cpp
index 96841c3c387bd..1846f9265c755 100644
--- a/llvm/tools/llvm-dwarfdump/Statistics.cpp
+++ b/llvm/tools/llvm-dwarfdump/Statistics.cpp
@@ -229,7 +229,7 @@ static std::string constructDieID(DWARFDie Die,
      << Die.getName(DINameKind::LinkageName);
 
   // Prefix + Name is enough for local variables and parameters.
-  if (!Prefix.empty() && !Prefix.equals("g"))
+  if (!Prefix.empty() && Prefix != "g")
     return ID.str();
 
   auto DeclFile = Die.findRecursively(dwarf::DW_AT_decl_file);
diff --git a/llvm/tools/llvm-extract/llvm-extract.cpp b/llvm/tools/llvm-extract/llvm-extract.cpp
index a879c203fc374..5915f92ea05c3 100644
--- a/llvm/tools/llvm-extract/llvm-extract.cpp
+++ b/llvm/tools/llvm-extract/llvm-extract.cpp
@@ -357,7 +357,7 @@ int main(int argc, char **argv) {
         // The function has been materialized, so add its matching basic blocks
         // to the block extractor list, or fail if a name is not found.
         auto Res = llvm::find_if(*P.first, [&](const BasicBlock &BB) {
-          return BB.getName().equals(BBName);
+          return BB.getName() == BBName;
         });
         if (Res == P.first->end()) {
           errs() << argv[0] << ": function " << P.first->getName()
diff --git a/llvm/tools/llvm-objdump/MachODump.cpp b/llvm/tools/llvm-objdump/MachODump.cpp
index 5e0d69a68d69b..749f988201757 100644
--- a/llvm/tools/llvm-objdump/MachODump.cpp
+++ b/llvm/tools/llvm-objdump/MachODump.cpp
@@ -2148,7 +2148,7 @@ static void ProcessMachO(StringRef Name, MachOObjectFile *MachOOF,
       else
         consumeError(NameOrErr.takeError());
 
-      if (SectName.equals("__text")) {
+      if (SectName == "__text") {
         DataRefImpl Ref = Section.getRawDataRefImpl();
         StringRef SegName = MachOOF->getSectionFinalSegmentName(Ref);
         DisassembleMachO(FileName, MachOOF, SegName, SectName);
diff --git a/llvm/tools/llvm-xray/xray-graph-diff.cpp b/llvm/tools/llvm-xray/xray-graph-diff.cpp
index 899a6725a5d3e..b5c63ab0a9183 100644
--- a/llvm/tools/llvm-xray/xray-graph-diff.cpp
+++ b/llvm/tools/llvm-xray/xray-graph-diff.cpp
@@ -381,14 +381,14 @@ void GraphDiffRenderer::exportGraphAsDOT(raw_ostream &OS, StatType EdgeLabel,
                   R"(color="{5}" labelfontcolor="{5}" penwidth={6}])"
                   "\n",
                   VertexNo[HeadId], VertexNo[TailId],
-                  (HeadId.equals("")) ? static_cast<StringRef>("F0") : HeadId,
+                  HeadId.empty() ? static_cast<StringRef>("F0") : HeadId,
                   TailId, getLabel(E, EdgeLabel), getColor(E, G, H, EdgeColor),
                   getLineWidth(E, EdgeColor));
   }
 
   for (const auto &V : G.vertices()) {
     const auto &VertexId = V.first;
-    if (VertexId.equals("")) {
+    if (VertexId.empty()) {
       OS << formatv(R"(F{0} [label="F0"])"
                     "\n",
                     VertexNo[VertexId]);
diff --git a/llvm/tools/llvm-yaml-numeric-parser-fuzzer/yaml-numeric-parser-fuzzer.cpp b/llvm/tools/llvm-yaml-numeric-parser-fuzzer/yaml-numeric-parser-fuzzer.cpp
index c8370289963db..9a572c1e06005 100644
--- a/llvm/tools/llvm-yaml-numeric-parser-fuzzer/yaml-numeric-parser-fuzzer.cpp
+++ b/llvm/tools/llvm-yaml-numeric-parser-fuzzer/yaml-numeric-parser-fuzzer.cpp
@@ -18,7 +18,7 @@ inline bool isNumericRegex(llvm::StringRef S) {
   static llvm::Regex Float(
       "^[-+]?(\\.[0-9]+|[0-9]+(\\.[0-9]*)?)([eE][-+]?[0-9]+)?$");
 
-  if (S.equals(".nan") || S.equals(".NaN") || S.equals(".NAN"))
+  if (S == ".nan" || S == ".NaN" || S == ".NAN")
     return true;
 
   if (Infinity....
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/91441


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