[llvm] Use StringRef::contains (NFC)

Author: kazutakahirata

llvm/include/llvm/Analysis/ObjCARCAnalysisUtils.h

@@ -204,11 +204,10 @@ inline bool IsObjCIdentifiedObject(const Value *V) {
         return true;
 
       StringRef Section = GV->getSection();
-      if (Section.find("__message_refs") != StringRef::npos ||
-          Section.find("__objc_classrefs") != StringRef::npos ||
-          Section.find("__objc_superrefs") != StringRef::npos ||
-          Section.find("__objc_methname") != StringRef::npos ||
-          Section.find("__cstring") != StringRef::npos)
+      if (Section.contains("__message_refs") ||
+          Section.contains("__objc_classrefs") ||
+          Section.contains("__objc_superrefs") ||
+          Section.contains("__objc_methname") || Section.contains("__cstring"))
         return true;
     }
   }

llvm/lib/Analysis/TargetLibraryInfo.cpp

@@ -883,7 +883,7 @@ TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(TargetLibraryInfoImpl &&
 static StringRef sanitizeFunctionName(StringRef funcName) {
   // Filter out empty names and names containing null bytes, those can't be in
   // our table.
-  if (funcName.empty() || funcName.find('\0') != StringRef::npos)
+  if (funcName.empty() || funcName.contains('\0'))
     return StringRef();
 
   // Check for \01 prefix that is used to mangle __asm declarations and

llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp

@@ -480,7 +480,7 @@ static bool hasObjCCategory(StringRef Name) {
   if (!isObjCClass(Name))
     return false;
 
-  return Name.find(") ") != StringRef::npos;
+  return Name.contains(") ");
 }
 
 static void getObjCClassCategory(StringRef In, StringRef &Class,

llvm/lib/FileCheck/FileCheck.cpp

@@ -954,8 +954,8 @@ bool Pattern::parsePattern(StringRef PatternStr, StringRef Prefix,
 
   // Check to see if this is a fixed string, or if it has regex pieces.
   if (!MatchFullLinesHere &&
-      (PatternStr.size() < 2 || (PatternStr.find("{{") == StringRef::npos &&
-                                 PatternStr.find("[[") == StringRef::npos))) {
+      (PatternStr.size() < 2 ||
+       (!PatternStr.contains("{{") && !PatternStr.contains("[[")))) {
     FixedStr = PatternStr;
     return false;
   }

llvm/lib/IR/AutoUpgrade.cpp

@@ -603,7 +603,7 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
 
       auto fArgs = F->getFunctionType()->params();
       Type *Tys[] = {fArgs[0], fArgs[1]};
-      if (Name.find("lane") == StringRef::npos)
+      if (!Name.contains("lane"))
         NewFn = Intrinsic::getDeclaration(F->getParent(),
                                           StoreInts[fArgs.size() - 3], Tys);
       else

llvm/lib/IR/Constants.cpp

@@ -3294,7 +3294,7 @@ bool ConstantDataSequential::isCString() const {
   if (Str.back() != 0) return false;
 
   // Other elements must be non-nul.
-  return Str.drop_back().find(0) == StringRef::npos;
+  return !Str.drop_back().contains(0);
 }
 
 bool ConstantDataVector::isSplatData() const {

llvm/lib/InterfaceStub/IFSHandler.cpp

@@ -163,7 +163,7 @@ bool usesTriple(StringRef Buf) {
   for (line_iterator I(MemoryBufferRef(Buf, "ELFStub")); !I.is_at_eof(); ++I) {
     StringRef Line = (*I).trim();
     if (Line.startswith("Target:")) {
-      if (Line == "Target:" || (Line.find("{") != Line.npos)) {
+      if (Line == "Target:" || Line.contains("{")) {
         return false;
       }
     }

llvm/lib/MC/MCParser/ELFAsmParser.cpp

@@ -830,7 +830,7 @@ bool ELFAsmParser::ParseDirectiveSymver(StringRef, SMLoc) {
   if (getParser().parseIdentifier(Name))
     return TokError("expected identifier in directive");
 
-  if (Name.find('@') == StringRef::npos)
+  if (!Name.contains('@'))
     return TokError("expected a '@' in the name");
   bool KeepOriginalSym = !Name.contains("@@@");
   if (parseOptionalToken(AsmToken::Comma)) {

llvm/lib/ProfileData/InstrProfWriter.cpp

@@ -215,8 +215,7 @@ void InstrProfWriter::overlapRecord(NamedInstrProfRecord &&Other,
   InstrProfRecord &Dest = Where->second;
 
   uint64_t ValueCutoff = FuncFilter.ValueCutoff;
-  if (!FuncFilter.NameFilter.empty() &&
-      Name.find(FuncFilter.NameFilter) != Name.npos)
+  if (!FuncFilter.NameFilter.empty() && Name.contains(FuncFilter.NameFilter))
     ValueCutoff = 0;
 
   Dest.overlap(Other, Overlap, FuncLevelOverlap, ValueCutoff);

llvm/lib/ProfileData/SampleProfWriter.cpp

@@ -240,7 +240,7 @@ std::error_code SampleProfileWriterExtBinaryBase::writeNameTableSection(
   // so compiler won't strip the suffix during profile matching after
   // seeing the flag in the profile.
   for (const auto &I : NameTable) {
-    if (I.first.find(FunctionSamples::UniqSuffix) != StringRef::npos) {
+    if (I.first.contains(FunctionSamples::UniqSuffix)) {
       addSectionFlag(SecNameTable, SecNameTableFlags::SecFlagUniqSuffix);
       break;
     }