[clang] [NFC][clang][TableGen] Remove redundant llvm:: namespace qualifier (PR #108627)

Rahul Joshi via cfe-commits cfe-commits at lists.llvm.org
Fri Sep 13 11:58:35 PDT 2024


https://github.com/jurahul created https://github.com/llvm/llvm-project/pull/108627

Remove llvm:: from .cpp files, and add "using namespace llvm" if needed.

>From 73a8e42a15441b38a1d88e2fd4de0dd420a33398 Mon Sep 17 00:00:00 2001
From: Rahul Joshi <rjoshi at nvidia.com>
Date: Fri, 13 Sep 2024 11:55:45 -0700
Subject: [PATCH] [NFC][clang][TableGen] Remove redundant llvm:: namespace
 qualifier

Remove llvm:: from .cpp files, and add "using namespace llvm" if
needed.
---
 clang/utils/TableGen/ASTTableGen.cpp          |   2 +-
 .../TableGen/ClangASTPropertiesEmitter.cpp    |   3 +-
 clang/utils/TableGen/ClangAttrEmitter.cpp     | 135 ++++++++----------
 clang/utils/TableGen/ClangBuiltinsEmitter.cpp |  20 ++-
 .../TableGen/ClangDiagnosticsEmitter.cpp      |  61 ++++----
 clang/utils/TableGen/ClangOpcodesEmitter.cpp  |   4 +-
 .../TableGen/ClangOpenCLBuiltinEmitter.cpp    |   7 +-
 .../utils/TableGen/ClangOptionDocEmitter.cpp  |   6 +-
 .../utils/TableGen/ClangSACheckersEmitter.cpp |   9 +-
 clang/utils/TableGen/ClangSyntaxEmitter.cpp   |  50 +++----
 clang/utils/TableGen/MveEmitter.cpp           |  12 +-
 clang/utils/TableGen/NeonEmitter.cpp          |  32 ++---
 clang/utils/TableGen/RISCVVEmitter.cpp        |   6 +-
 clang/utils/TableGen/SveEmitter.cpp           |  44 +++---
 14 files changed, 186 insertions(+), 205 deletions(-)

diff --git a/clang/utils/TableGen/ASTTableGen.cpp b/clang/utils/TableGen/ASTTableGen.cpp
index 47344777e9311a..46bb6c21997f09 100644
--- a/clang/utils/TableGen/ASTTableGen.cpp
+++ b/clang/utils/TableGen/ASTTableGen.cpp
@@ -21,7 +21,7 @@ using namespace llvm;
 using namespace clang;
 using namespace clang::tblgen;
 
-llvm::StringRef clang::tblgen::HasProperties::getName() const {
+StringRef clang::tblgen::HasProperties::getName() const {
   if (auto node = getAs<ASTNode>()) {
     return node.getName();
   } else if (auto typeCase = getAs<TypeCase>()) {
diff --git a/clang/utils/TableGen/ClangASTPropertiesEmitter.cpp b/clang/utils/TableGen/ClangASTPropertiesEmitter.cpp
index 2d67b6b643637c..3151ff199f5762 100644
--- a/clang/utils/TableGen/ClangASTPropertiesEmitter.cpp
+++ b/clang/utils/TableGen/ClangASTPropertiesEmitter.cpp
@@ -205,8 +205,7 @@ class ASTPropsEmitter {
 
   void visitAllNodesWithInfo(
       HasProperties derivedNode, const NodeInfo &derivedNodeInfo,
-      llvm::function_ref<void(HasProperties node, const NodeInfo &info)>
-          visit) {
+      function_ref<void(HasProperties node, const NodeInfo &info)> visit) {
     visit(derivedNode, derivedNodeInfo);
 
     // Also walk the bases if appropriate.
diff --git a/clang/utils/TableGen/ClangAttrEmitter.cpp b/clang/utils/TableGen/ClangAttrEmitter.cpp
index 9b2249ac90bc5c..f593f6428fe4cc 100644
--- a/clang/utils/TableGen/ClangAttrEmitter.cpp
+++ b/clang/utils/TableGen/ClangAttrEmitter.cpp
@@ -1475,7 +1475,7 @@ createArgument(const Record &Arg, StringRef Attr,
     Search = &Arg;
 
   std::unique_ptr<Argument> Ptr;
-  llvm::StringRef ArgName = Search->getName();
+  StringRef ArgName = Search->getName();
 
   if (ArgName == "AlignedArgument")
     Ptr = std::make_unique<AlignedArgument>(Arg, Attr);
@@ -1532,7 +1532,7 @@ createArgument(const Record &Arg, StringRef Attr,
   if (!Ptr) {
     // Search in reverse order so that the most-derived type is handled first.
     ArrayRef<std::pair<Record*, SMRange>> Bases = Search->getSuperClasses();
-    for (const auto &Base : llvm::reverse(Bases)) {
+    for (const auto &Base : reverse(Bases)) {
       if ((Ptr = createArgument(Arg, Attr, Base.first)))
         break;
     }
@@ -1611,11 +1611,11 @@ writePrettyPrintFunction(const Record &R,
      << "    break;\n";
 
   for (unsigned I = 0; I < Spellings.size(); ++ I) {
-    llvm::SmallString<16> Prefix;
-    llvm::SmallString<8> Suffix;
+    SmallString<16> Prefix;
+    SmallString<8> Suffix;
     // The actual spelling of the name and namespace (if applicable)
     // of an attribute without considering prefix and suffix.
-    llvm::SmallString<64> Spelling;
+    SmallString<64> Spelling;
     std::string Name = Spellings[I].name();
     std::string Variety = Spellings[I].variety();
 
@@ -1680,7 +1680,7 @@ writePrettyPrintFunction(const Record &R,
       // printing spurious commas at the end of an argument list, we need to
       // determine where the last provided non-fake argument is.
       bool FoundNonOptArg = false;
-      for (const auto &arg : llvm::reverse(Args)) {
+      for (const auto &arg : reverse(Args)) {
         if (arg->isFake())
           continue;
         if (FoundNonOptArg)
@@ -1776,7 +1776,7 @@ SpellingNamesAreCommon(const std::vector<FlattenedSpelling>& Spellings) {
   assert(!Spellings.empty() && "An empty list of spellings was provided");
   std::string FirstName =
       std::string(NormalizeNameForSpellingComparison(Spellings.front().name()));
-  for (const auto &Spelling : llvm::drop_begin(Spellings)) {
+  for (const auto &Spelling : drop_begin(Spellings)) {
     std::string Name =
         std::string(NormalizeNameForSpellingComparison(Spelling.name()));
     if (Name != FirstName)
@@ -1834,7 +1834,7 @@ CreateSemanticSpellings(const std::vector<FlattenedSpelling> &Spellings,
     // enumeration, but the spelling index and semantic spelling values are
     // meant to be equivalent, so we must specify a concrete value for each
     // enumerator.
-    Ret += "    " + EnumName + " = " + llvm::utostr(Idx);
+    Ret += "    " + EnumName + " = " + utostr(Idx);
   }
   Ret += ",\n  SpellingNotCalculated = 15\n";
   Ret += "\n  };\n\n";
@@ -1871,15 +1871,14 @@ static LateAttrParseKind getLateAttrParseKind(const Record *Attr) {
   SmallVector<Record *, 1> SuperClasses;
   LAPK->getDirectSuperClasses(SuperClasses);
   if (SuperClasses.size() != 1)
-    PrintFatalError(Attr, "Field `" + llvm::Twine(LateParsedStr) +
+    PrintFatalError(Attr, "Field `" + Twine(LateParsedStr) +
                               "`should only have one super class");
 
   if (SuperClasses[0]->getName() != LateAttrParseKindStr)
-    PrintFatalError(Attr, "Field `" + llvm::Twine(LateParsedStr) +
-                              "`should only have type `" +
-                              llvm::Twine(LateAttrParseKindStr) +
-                              "` but found type `" +
-                              SuperClasses[0]->getName() + "`");
+    PrintFatalError(
+        Attr, "Field `" + Twine(LateParsedStr) + "`should only have type `" +
+                  Twine(LateAttrParseKindStr) + "` but found type `" +
+                  SuperClasses[0]->getName() + "`");
 
   // Get Kind and verify the enum name matches the name in `Attr.td`.
   unsigned Kind = LAPK->getValueAsInt(KindFieldStr);
@@ -1887,11 +1886,11 @@ static LateAttrParseKind getLateAttrParseKind(const Record *Attr) {
 #define CASE(X)                                                                \
   case LateAttrParseKind::X:                                                   \
     if (LAPK->getName().compare("LateAttrParse" #X) != 0) {                    \
-      PrintFatalError(Attr,                                                    \
-                      "Field `" + llvm::Twine(LateParsedStr) + "` set to `" +  \
-                          LAPK->getName() +                                    \
-                          "` but this converts to `LateAttrParseKind::" +      \
-                          llvm::Twine(#X) + "`");                              \
+      PrintFatalError(                                                         \
+          Attr,                                                                \
+          "Field `" + Twine(LateParsedStr) + "` set to `" + LAPK->getName() +  \
+              "` but this converts to `LateAttrParseKind::" + Twine(#X) +      \
+              "`");                                                            \
     }                                                                          \
     return LateAttrParseKind::X;
 
@@ -1902,11 +1901,10 @@ static LateAttrParseKind getLateAttrParseKind(const Record *Attr) {
   }
 
   // The Kind value is completely invalid
-  auto KindValueStr = llvm::utostr(Kind);
-  PrintFatalError(Attr, "Field `" + llvm::Twine(LateParsedStr) + "` set to `" +
+  auto KindValueStr = utostr(Kind);
+  PrintFatalError(Attr, "Field `" + Twine(LateParsedStr) + "` set to `" +
                             LAPK->getName() + "` has unexpected `" +
-                            llvm::Twine(KindFieldStr) + "` value of " +
-                            KindValueStr);
+                            Twine(KindFieldStr) + "` value of " + KindValueStr);
 }
 
 // Emits the LateParsed property for attributes.
@@ -2061,7 +2059,7 @@ struct PragmaClangAttributeSupport {
       return RuleOrAggregateRuleSet(Rules, /*IsRule=*/false);
     }
   };
-  llvm::DenseMap<const Record *, RuleOrAggregateRuleSet> SubjectsToRules;
+  DenseMap<const Record *, RuleOrAggregateRuleSet> SubjectsToRules;
 
   PragmaClangAttributeSupport(const RecordKeeper &Records);
 
@@ -2301,7 +2299,7 @@ void PragmaClangAttributeSupport::generateParsingHelpers(raw_ostream &OS) {
   OS << "  return std::nullopt;\n";
   OS << "}\n\n";
 
-  llvm::MapVector<const Record *, std::vector<AttributeSubjectMatchRule>>
+  MapVector<const Record *, std::vector<AttributeSubjectMatchRule>>
       SubMatchRules;
   for (const auto &Rule : Rules) {
     if (!Rule.isSubRule())
@@ -2404,7 +2402,7 @@ void generateNameToAttrsMap(const RecordKeeper &Records) {
     for (const auto &S : Spellings) {
       auto It = NameToAttrsMap.find(S.name());
       if (It != NameToAttrsMap.end()) {
-        if (llvm::none_of(It->second, [&](const Record *R) { return R == A; }))
+        if (none_of(It->second, [&](const Record *R) { return R == A; }))
           It->second.emplace_back(A);
       } else {
         std::vector<const Record *> V;
@@ -2542,17 +2540,16 @@ static void emitClangAttrArgContextList(const RecordKeeper &Records,
 
 static bool isIdentifierArgument(const Record *Arg) {
   return !Arg->getSuperClasses().empty() &&
-    llvm::StringSwitch<bool>(Arg->getSuperClasses().back().first->getName())
-    .Case("IdentifierArgument", true)
-    .Case("EnumArgument", true)
-    .Case("VariadicEnumArgument", true)
-    .Default(false);
+         StringSwitch<bool>(Arg->getSuperClasses().back().first->getName())
+             .Case("IdentifierArgument", true)
+             .Case("EnumArgument", true)
+             .Case("VariadicEnumArgument", true)
+             .Default(false);
 }
 
 static bool isVariadicIdentifierArgument(const Record *Arg) {
   return !Arg->getSuperClasses().empty() &&
-         llvm::StringSwitch<bool>(
-             Arg->getSuperClasses().back().first->getName())
+         StringSwitch<bool>(Arg->getSuperClasses().back().first->getName())
              .Case("VariadicIdentifierArgument", true)
              .Case("VariadicParamOrParamIdxArgument", true)
              .Default(false);
@@ -2560,8 +2557,7 @@ static bool isVariadicIdentifierArgument(const Record *Arg) {
 
 static bool isVariadicExprArgument(const Record *Arg) {
   return !Arg->getSuperClasses().empty() &&
-         llvm::StringSwitch<bool>(
-             Arg->getSuperClasses().back().first->getName())
+         StringSwitch<bool>(Arg->getSuperClasses().back().first->getName())
              .Case("VariadicExprArgument", true)
              .Default(false);
 }
@@ -2658,7 +2654,7 @@ static void emitClangAttrStrictIdentifierArgList(const RecordKeeper &Records,
       continue;
     // Check that there is really an identifier argument.
     std::vector<Record *> Args = Attr->getValueAsListOfDefs("Args");
-    if (llvm::none_of(Args, [&](Record *R) { return isIdentifierArgument(R); }))
+    if (none_of(Args, [&](Record *R) { return isIdentifierArgument(R); }))
       continue;
     generateFlattenedSpellingInfo(*Attr, FSIMap);
   }
@@ -2668,8 +2664,7 @@ static void emitClangAttrStrictIdentifierArgList(const RecordKeeper &Records,
 
 static bool keywordThisIsaIdentifierInArgument(const Record *Arg) {
   return !Arg->getSuperClasses().empty() &&
-         llvm::StringSwitch<bool>(
-             Arg->getSuperClasses().back().first->getName())
+         StringSwitch<bool>(Arg->getSuperClasses().back().first->getName())
              .Case("VariadicParamOrParamIdxArgument", true)
              .Default(false);
 }
@@ -2759,7 +2754,7 @@ static void emitAttributes(const RecordKeeper &Records, raw_ostream &OS,
     assert(!Supers.empty() && "Forgot to specify a superclass for the attr");
     std::string SuperName;
     bool Inheritable = false;
-    for (const auto &Super : llvm::reverse(Supers)) {
+    for (const auto &Super : reverse(Supers)) {
       const Record *R = Super.first;
       if (R->getName() != "TargetSpecificAttr" &&
           R->getName() != "DeclOrTypeAttr" && SuperName.empty())
@@ -2843,8 +2838,8 @@ static void emitAttributes(const RecordKeeper &Records, raw_ostream &OS,
     if (Header)
       OS << SpellingEnum;
 
-    const auto &ParsedAttrSpellingItr = llvm::find_if(
-        AttrMap, [R](const std::pair<std::string, const Record *> &P) {
+    const auto &ParsedAttrSpellingItr =
+        find_if(AttrMap, [R](const std::pair<std::string, const Record *> &P) {
           return &R == P.second;
         });
 
@@ -3133,7 +3128,7 @@ static void emitAttributes(const RecordKeeper &Records, raw_ostream &OS,
     // Emit constructors that takes no arguments if none already exists.
     // This is used for delaying arguments.
     bool HasRequiredArgs =
-        llvm::count_if(Args, [=](const std::unique_ptr<Argument> &arg) {
+        count_if(Args, [=](const std::unique_ptr<Argument> &arg) {
           return !arg->isFake() && !arg->isOptional();
         });
     if (DelayedArgs && HasRequiredArgs)
@@ -3280,7 +3275,7 @@ static void emitAttrList(raw_ostream &OS, StringRef Class,
 // Determines if an attribute has a Pragma spelling.
 static bool AttrHasPragmaSpelling(const Record *R) {
   std::vector<FlattenedSpelling> Spellings = GetFlattenedSpellings(*R);
-  return llvm::any_of(Spellings, [](const FlattenedSpelling &S) {
+  return any_of(Spellings, [](const FlattenedSpelling &S) {
     return S.variety() == "Pragma";
   });
 }
@@ -3646,7 +3641,7 @@ static bool GenerateTargetSpecificAttrChecks(const Record *R,
                                              std::string *FnName) {
   bool AnyTargetChecks = false;
 
-  // It is assumed that there will be an llvm::Triple object
+  // It is assumed that there will be an Triple object
   // named "T" and a TargetInfo object named "Target" within
   // scope that can be used to determine whether the attribute exists in
   // a given target.
@@ -3756,8 +3751,8 @@ static void GenerateHasAttrSpellingStringSwitch(
     }
 
     std::string TestStr = !Test.empty()
-                              ? Test + " ? " + llvm::itostr(Version) + " : 0"
-                              : llvm::itostr(Version);
+                              ? Test + " ? " + itostr(Version) + " : 0"
+                              : itostr(Version);
     if (Scope.empty() || Scope == Spelling.nameSpace())
       OS << "    .Case(\"" << Spelling.name() << "\", " << TestStr << ")\n";
   }
@@ -3780,7 +3775,7 @@ void EmitClangRegularKeywordAttributeInfo(const RecordKeeper &Records,
       if (!isRegularKeywordAttribute(S))
         continue;
       std::vector<Record *> Args = R->getValueAsListOfDefs("Args");
-      bool HasArgs = llvm::any_of(
+      bool HasArgs = any_of(
           Args, [](const Record *Arg) { return !Arg->getValueAsBit("Fake"); });
 
       OS << "KEYWORD_ATTRIBUTE("
@@ -4136,7 +4131,7 @@ static std::string CalculateDiagnostic(const Record &S) {
       // The node may contain a list of elements itself, so split the elements
       // by a comma, and trim any whitespace.
       SmallVector<StringRef, 2> Frags;
-      llvm::SplitString(V, Frags, ",");
+      SplitString(V, Frags, ",");
       for (auto Str : Frags) {
         DiagList.push_back(std::string(Str.trim()));
       }
@@ -4164,7 +4159,7 @@ static std::string CalculateDiagnostic(const Record &S) {
   // elements with a comma. This leaves the string in the state: foo, bar,
   // baz (but misses quux). We can then add ", and " for the last element
   // manually.
-  std::string Diag = llvm::join(DiagList.begin(), DiagList.end() - 1, ", ");
+  std::string Diag = join(DiagList.begin(), DiagList.end() - 1, ", ");
   return '"' + Diag + ", and " + *(DiagList.end() - 1) + '"';
 }
 
@@ -4230,12 +4225,11 @@ static void GenerateAppertainsTo(const Record &Attr, raw_ostream &OS) {
   // enough statement attributes with custom subject needs to warrant
   // the implementation effort.
   std::vector<Record *> DeclSubjects, StmtSubjects;
-  llvm::copy_if(
-      Subjects, std::back_inserter(DeclSubjects), [](const Record *R) {
-        return R->isSubClassOf("SubsetSubject") || !R->isSubClassOf("StmtNode");
-      });
-  llvm::copy_if(Subjects, std::back_inserter(StmtSubjects),
-                [](const Record *R) { return R->isSubClassOf("StmtNode"); });
+  copy_if(Subjects, std::back_inserter(DeclSubjects), [](const Record *R) {
+    return R->isSubClassOf("SubsetSubject") || !R->isSubClassOf("StmtNode");
+  });
+  copy_if(Subjects, std::back_inserter(StmtSubjects),
+          [](const Record *R) { return R->isSubClassOf("StmtNode"); });
 
   // We should have sorted all of the subjects into two lists.
   // FIXME: this assertion will be wrong if we ever add type attribute subjects.
@@ -4353,7 +4347,7 @@ static void GenerateMutualExclusionsChecks(const Record &Attr,
     auto IsCurAttr = [Attr](const Record *R) {
       return R->getName() == Attr.getName();
     };
-    if (llvm::any_of(MutuallyExclusiveAttrs, IsCurAttr)) {
+    if (any_of(MutuallyExclusiveAttrs, IsCurAttr)) {
       // This list of exclusions includes the attribute we're looking for, so
       // add the exclusive attributes to the proper list for checking.
       for (const Record *AttrToExclude : MutuallyExclusiveAttrs) {
@@ -4565,8 +4559,7 @@ GenerateSpellingTargetRequirements(const Record &Attr,
 
     Test += "((SpellingListIndex == ";
     for (unsigned Index = 0; Index < Spellings.size(); ++Index) {
-      Test +=
-          llvm::itostr(getSpellingListIndex(SpellingList, Spellings[Index]));
+      Test += itostr(getSpellingListIndex(SpellingList, Spellings[Index]));
       if (Index != Spellings.size() - 1)
         Test += " ||\n    SpellingListIndex == ";
       else
@@ -4632,8 +4625,7 @@ static void GenerateHandleDeclAttribute(const Record &Attr, raw_ostream &OS) {
 
 static bool isParamExpr(const Record *Arg) {
   return !Arg->getSuperClasses().empty() &&
-         llvm::StringSwitch<bool>(
-             Arg->getSuperClasses().back().first->getName())
+         StringSwitch<bool>(Arg->getSuperClasses().back().first->getName())
              .Case("ExprArgument", true)
              .Case("VariadicExprArgument", true)
              .Default(false);
@@ -4683,9 +4675,8 @@ void GenerateHandleAttrWithDelayedArgs(const RecordKeeper &Records,
 static bool IsKnownToGCC(const Record &Attr) {
   // Look at the spellings for this subject; if there are any spellings which
   // claim to be known to GCC, the attribute is known to GCC.
-  return llvm::any_of(
-      GetFlattenedSpellings(Attr),
-      [](const FlattenedSpelling &S) { return S.knownToGCC(); });
+  return any_of(GetFlattenedSpellings(Attr),
+                [](const FlattenedSpelling &S) { return S.knownToGCC(); });
 }
 
 /// Emits the parsed attribute helpers
@@ -4967,7 +4958,7 @@ void EmitClangAttrTextNodeDump(const RecordKeeper &Records, raw_ostream &OS) {
     // spelling used for the attribute.
 
     std::string FunctionContent;
-    llvm::raw_string_ostream SS(FunctionContent);
+    raw_string_ostream SS(FunctionContent);
 
     std::vector<FlattenedSpelling> Spellings = GetFlattenedSpellings(R);
     if (Spellings.size() > 1 && !SpellingNamesAreCommon(Spellings))
@@ -5001,7 +4992,7 @@ void EmitClangAttrNodeTraverse(const RecordKeeper &Records, raw_ostream &OS) {
       continue;
 
     std::string FunctionContent;
-    llvm::raw_string_ostream SS(FunctionContent);
+    raw_string_ostream SS(FunctionContent);
 
     std::vector<Record *> Args = R.getValueAsListOfDefs("Args");
     for (const auto *Arg : Args)
@@ -5173,7 +5164,7 @@ GetAttributeHeadingAndSpellings(const Record &Documentation,
       // concatenating all the spellings. Might not be great, but better than
       // nothing.
       else if (Cat == "Undocumented")
-        Heading = llvm::join(Uniques.begin(), Uniques.end(), ", ");
+        Heading = join(Uniques.begin(), Uniques.end(), ", ");
     }
   }
 
@@ -5291,10 +5282,10 @@ void EmitClangAttrDocs(const RecordKeeper &Records, raw_ostream &OS) {
   for (auto &I : SplitDocs) {
     WriteCategoryHeader(I.first, OS);
 
-    llvm::sort(I.second,
-               [](const DocumentationData &D1, const DocumentationData &D2) {
-                 return D1.Heading < D2.Heading;
-               });
+    sort(I.second,
+         [](const DocumentationData &D1, const DocumentationData &D2) {
+           return D1.Heading < D2.Heading;
+         });
 
     // Walk over each of the attributes in the category and write out their
     // documentation.
@@ -5321,7 +5312,7 @@ void EmitTestPragmaAttributeSupportedAttributes(const RecordKeeper &Records,
         SubjectObj->getValueAsListOfDefs("Subjects");
     OS << " (";
     bool PrintComma = false;
-    for (const auto &Subject : llvm::enumerate(Subjects)) {
+    for (const auto &Subject : enumerate(Subjects)) {
       if (!isSupportedPragmaClangAttributeSubject(*Subject.value()))
         continue;
       if (PrintComma)
@@ -5334,7 +5325,7 @@ void EmitTestPragmaAttributeSupportedAttributes(const RecordKeeper &Records,
         continue;
       }
       OS << "(";
-      for (const auto &Rule : llvm::enumerate(RuleSet.getAggregateRuleSet())) {
+      for (const auto &Rule : enumerate(RuleSet.getAggregateRuleSet())) {
         if (Rule.index())
           OS << ", ";
         OS << Rule.value().getEnumValueName();
diff --git a/clang/utils/TableGen/ClangBuiltinsEmitter.cpp b/clang/utils/TableGen/ClangBuiltinsEmitter.cpp
index 4ae7600a392b8f..20231ee1502c12 100644
--- a/clang/utils/TableGen/ClangBuiltinsEmitter.cpp
+++ b/clang/utils/TableGen/ClangBuiltinsEmitter.cpp
@@ -133,7 +133,7 @@ class PrototypeParser {
       if (!T.consume_front("<"))
         PrintFatalError(Loc, "Expected '<' after '_ExtVector'");
       unsigned long long Lanes;
-      if (llvm::consumeUnsignedInteger(T, 10, Lanes))
+      if (consumeUnsignedInteger(T, 10, Lanes))
         PrintFatalError(Loc, "Expected number of lanes after '_ExtVector<'");
       Type += "E" + std::to_string(Lanes);
       if (!T.consume_front(","))
@@ -187,7 +187,7 @@ class PrototypeParser {
   }
 
 public:
-  void Print(llvm::raw_ostream &OS) const { OS << ", \"" << Type << '\"'; }
+  void Print(raw_ostream &OS) const { OS << ", \"" << Type << '\"'; }
 
 private:
   SMLoc Loc;
@@ -208,14 +208,13 @@ class HeaderNameParser {
     }
   }
 
-  void Print(llvm::raw_ostream &OS) const { OS << HeaderName; }
+  void Print(raw_ostream &OS) const { OS << HeaderName; }
 
 private:
   std::string HeaderName;
 };
 
-void PrintAttributes(const Record *Builtin, BuiltinType BT,
-                     llvm::raw_ostream &OS) {
+void PrintAttributes(const Record *Builtin, BuiltinType BT, raw_ostream &OS) {
   OS << '\"';
   if (Builtin->isSubClassOf("LibBuiltin")) {
     if (BT == BuiltinType::LibBuiltin) {
@@ -241,7 +240,7 @@ void PrintAttributes(const Record *Builtin, BuiltinType BT,
   OS << '\"';
 }
 
-void EmitBuiltinDef(llvm::raw_ostream &OS, StringRef Substitution,
+void EmitBuiltinDef(raw_ostream &OS, StringRef Substitution,
                     const Record *Builtin, Twine Spelling, BuiltinType BT) {
   if (Builtin->getValueAsBit("RequiresUndef"))
     OS << "#undef " << Spelling << '\n';
@@ -304,14 +303,14 @@ TemplateInsts getTemplateInsts(const Record *R) {
     PrintFatalError(R->getLoc(), "Substitutions and affixes "
                                  "don't have the same lengths");
 
-  for (auto [Affix, Substitution] : llvm::zip(Affixes, Substitutions)) {
+  for (auto [Affix, Substitution] : zip(Affixes, Substitutions)) {
     temp.Substitution.emplace_back(Substitution);
     temp.Affix.emplace_back(Affix);
   }
   return temp;
 }
 
-void EmitBuiltin(llvm::raw_ostream &OS, const Record *Builtin) {
+void EmitBuiltin(raw_ostream &OS, const Record *Builtin) {
   TemplateInsts Templates = {};
   if (Builtin->isSubClassOf("Template")) {
     Templates = getTemplateInsts(Builtin);
@@ -321,7 +320,7 @@ void EmitBuiltin(llvm::raw_ostream &OS, const Record *Builtin) {
   }
 
   for (auto [Substitution, Affix] :
-       llvm::zip(Templates.Substitution, Templates.Affix)) {
+       zip(Templates.Substitution, Templates.Affix)) {
     for (StringRef Spelling : Builtin->getValueAsListOfStrings("Spellings")) {
       auto FullSpelling =
           (Templates.IsPrefix ? Affix + Spelling : Spelling + Affix).str();
@@ -345,8 +344,7 @@ void EmitBuiltin(llvm::raw_ostream &OS, const Record *Builtin) {
 }
 } // namespace
 
-void clang::EmitClangBuiltins(const llvm::RecordKeeper &Records,
-                              llvm::raw_ostream &OS) {
+void clang::EmitClangBuiltins(const RecordKeeper &Records, raw_ostream &OS) {
   emitSourceFileHeader("List of builtins that Clang recognizes", OS);
 
   OS << R"c++(
diff --git a/clang/utils/TableGen/ClangDiagnosticsEmitter.cpp b/clang/utils/TableGen/ClangDiagnosticsEmitter.cpp
index 773668caa75747..7a8aa181c7588f 100644
--- a/clang/utils/TableGen/ClangDiagnosticsEmitter.cpp
+++ b/clang/utils/TableGen/ClangDiagnosticsEmitter.cpp
@@ -131,12 +131,12 @@ namespace {
   };
 
   struct GroupInfo {
-    llvm::StringRef GroupName;
+    StringRef GroupName;
     std::vector<const Record*> DiagsInGroup;
     std::vector<std::string> SubGroups;
     unsigned IDNo = 0;
 
-    llvm::SmallVector<const Record *, 1> Defs;
+    SmallVector<const Record *, 1> Defs;
 
     GroupInfo() = default;
   };
@@ -213,7 +213,7 @@ static void groupDiagnostics(ArrayRef<const Record *> Diags,
       if (IsImplicit)
         continue;
 
-      llvm::SMLoc Loc = Def->getLoc().front();
+      SMLoc Loc = Def->getLoc().front();
       if (First) {
         SrcMgr.PrintMessage(Loc, SourceMgr::DK_Error,
                             Twine("group '") + Group.first +
@@ -228,7 +228,7 @@ static void groupDiagnostics(ArrayRef<const Record *> Diags,
       if (!cast<DefInit>(Diag->getValueInit("Group"))->getDef()->isAnonymous())
         continue;
 
-      llvm::SMLoc Loc = Diag->getLoc().front();
+      SMLoc Loc = Diag->getLoc().front();
       if (First) {
         SrcMgr.PrintMessage(Loc, SourceMgr::DK_Error,
                             Twine("group '") + Group.first +
@@ -247,20 +247,19 @@ static void groupDiagnostics(ArrayRef<const Record *> Diags,
 //===----------------------------------------------------------------------===//
 
 typedef std::vector<const Record *> RecordVec;
-typedef llvm::DenseSet<const Record *> RecordSet;
-typedef llvm::PointerUnion<RecordVec*, RecordSet*> VecOrSet;
+typedef DenseSet<const Record *> RecordSet;
+typedef PointerUnion<RecordVec *, RecordSet *> VecOrSet;
 
 namespace {
 class InferPedantic {
-  typedef llvm::DenseMap<const Record *,
-                         std::pair<unsigned, std::optional<unsigned>>>
+  typedef DenseMap<const Record *, std::pair<unsigned, std::optional<unsigned>>>
       GMap;
 
   DiagGroupParentMap &DiagGroupParents;
   ArrayRef<const Record *> Diags;
   const std::vector<const Record *> DiagGroups;
   std::map<std::string, GroupInfo> &DiagsInGroup;
-  llvm::DenseSet<const Record*> DiagsSet;
+  DenseSet<const Record *> DiagsSet;
   GMap GroupCount;
 public:
   InferPedantic(DiagGroupParentMap &DiagGroupParents,
@@ -277,8 +276,7 @@ class InferPedantic {
 
 private:
   /// Determine whether a group is a subgroup of another group.
-  bool isSubGroupOfGroup(const Record *Group,
-                         llvm::StringRef RootGroupName);
+  bool isSubGroupOfGroup(const Record *Group, StringRef RootGroupName);
 
   /// Determine if the diagnostic is an extension.
   bool isExtension(const Record *Diag);
@@ -295,8 +293,7 @@ class InferPedantic {
 };
 } // end anonymous namespace
 
-bool InferPedantic::isSubGroupOfGroup(const Record *Group,
-                                      llvm::StringRef GName) {
+bool InferPedantic::isSubGroupOfGroup(const Record *Group, StringRef GName) {
   const std::string &GroupName =
       std::string(Group->getValueAsString("GroupName"));
   if (GName == GroupName)
@@ -409,8 +406,8 @@ void InferPedantic::compute(VecOrSet DiagsInPedantic,
 
     const std::vector<const Record *> &Parents =
         DiagGroupParents.getParents(Group);
-    bool AllParentsInPedantic = llvm::all_of(
-        Parents, [&](const Record *R) { return groupInPedantic(R); });
+    bool AllParentsInPedantic =
+        all_of(Parents, [&](const Record *R) { return groupInPedantic(R); });
     // If all the parents are in -Wpedantic, this means that this diagnostic
     // group will be indirectly included by -Wpedantic already.  In that
     // case, do not add it directly to -Wpedantic.  If the group has no
@@ -613,11 +610,12 @@ struct DiagnosticTextBuilder {
   Piece *getSubstitution(SubstitutionPiece *S) const {
     auto It = Substitutions.find(S->Name);
     if (It == Substitutions.end())
-      PrintFatalError("Failed to find substitution with name: " + S->Name);
+      llvm::PrintFatalError("Failed to find substitution with name: " +
+                            S->Name);
     return It->second.Root;
   }
 
-  [[noreturn]] void PrintFatalError(llvm::Twine const &Msg) const {
+  [[noreturn]] void PrintFatalError(Twine const &Msg) const {
     assert(EvaluatingRecord && "not evaluating a record?");
     llvm::PrintFatalError(EvaluatingRecord->getLoc(), Msg);
   }
@@ -1022,8 +1020,8 @@ Piece *DiagnosticTextBuilder::DiagText::parseDiagText(StringRef &Text,
                                                       StopAt Stop) {
   std::vector<Piece *> Parsed;
 
-  constexpr llvm::StringLiteral StopSets[] = {"%", "%|}", "%|}$"};
-  llvm::StringRef StopSet = StopSets[static_cast<int>(Stop)];
+  constexpr StringLiteral StopSets[] = {"%", "%|}", "%|}$"};
+  StringRef StopSet = StopSets[static_cast<int>(Stop)];
 
   while (!Text.empty()) {
     size_t End = (size_t)-2;
@@ -1050,7 +1048,7 @@ Piece *DiagnosticTextBuilder::DiagText::parseDiagText(StringRef &Text,
     size_t ModLength = Text.find_first_of("0123456789{");
     StringRef Modifier = Text.slice(0, ModLength);
     Text = Text.slice(ModLength, StringRef::npos);
-    ModifierType ModType = llvm::StringSwitch<ModifierType>{Modifier}
+    ModifierType ModType = StringSwitch<ModifierType>{Modifier}
                                .Case("select", MT_Select)
                                .Case("sub", MT_Sub)
                                .Case("diff", MT_Diff)
@@ -1227,7 +1225,7 @@ static bool isExemptAtStart(StringRef Text) {
   // OBJECT_MODE. However, if there's only a single letter other than "C", we
   // do not exempt it so that we catch a case like "A really bad idea" while
   // still allowing a case like "C does not allow...".
-  if (llvm::all_of(Text, [](char C) {
+  if (all_of(Text, [](char C) {
         return isUpper(C) || isDigit(C) || C == '+' || C == '_';
       }))
     return Text.size() > 1 || Text[0] == 'C';
@@ -1530,11 +1528,11 @@ void clang::EmitClangDiagsDefs(const RecordKeeper &Records, raw_ostream &OS,
 // Warning Group Tables generation
 //===----------------------------------------------------------------------===//
 
-static std::string getDiagCategoryEnum(llvm::StringRef name) {
+static std::string getDiagCategoryEnum(StringRef name) {
   if (name.empty())
     return "DiagCat_None";
-  SmallString<256> enumName = llvm::StringRef("DiagCat_");
-  for (llvm::StringRef::iterator I = name.begin(), E = name.end(); I != E; ++I)
+  SmallString<256> enumName = StringRef("DiagCat_");
+  for (StringRef::iterator I = name.begin(), E = name.end(); I != E; ++I)
     enumName += isalnum(*I) ? *I : '_';
   return std::string(enumName);
 }
@@ -1841,10 +1839,9 @@ void clang::EmitClangDiagsIndexName(const RecordKeeper &Records,
     Index.push_back(RecordIndexElement(R));
   }
 
-  llvm::sort(Index,
-             [](const RecordIndexElement &Lhs, const RecordIndexElement &Rhs) {
-               return Lhs.Name < Rhs.Name;
-             });
+  sort(Index, [](const RecordIndexElement &Lhs, const RecordIndexElement &Rhs) {
+    return Lhs.Name < Rhs.Name;
+  });
 
   for (unsigned i = 0, e = Index.size(); i != e; ++i) {
     const RecordIndexElement &R = Index[i];
@@ -1941,7 +1938,7 @@ void clang::EmitClangDiagDocs(const RecordKeeper &Records, raw_ostream &OS) {
 
   std::vector<const Record *> DiagGroups =
       Records.getAllDerivedDefinitions("DiagGroup");
-  llvm::sort(DiagGroups, diagGroupBeforeByName);
+  sort(DiagGroups, diagGroupBeforeByName);
 
   DiagGroupParentMap DGParentMap(Records);
 
@@ -1960,8 +1957,8 @@ void clang::EmitClangDiagDocs(const RecordKeeper &Records, raw_ostream &OS) {
                               DiagsInPedanticSet.end());
     RecordVec GroupsInPedantic(GroupsInPedanticSet.begin(),
                                GroupsInPedanticSet.end());
-    llvm::sort(DiagsInPedantic, beforeThanCompare);
-    llvm::sort(GroupsInPedantic, beforeThanCompare);
+    sort(DiagsInPedantic, beforeThanCompare);
+    sort(GroupsInPedantic, beforeThanCompare);
     PedDiags.DiagsInGroup.insert(PedDiags.DiagsInGroup.end(),
                                  DiagsInPedantic.begin(),
                                  DiagsInPedantic.end());
@@ -2012,7 +2009,7 @@ void clang::EmitClangDiagDocs(const RecordKeeper &Records, raw_ostream &OS) {
         OS << "Also controls ";
 
       bool First = true;
-      llvm::sort(GroupInfo.SubGroups);
+      sort(GroupInfo.SubGroups);
       for (const auto &Name : GroupInfo.SubGroups) {
         if (!First) OS << ", ";
         OS << "`" << (IsRemarkGroup ? "-R" : "-W") << Name << "`_";
diff --git a/clang/utils/TableGen/ClangOpcodesEmitter.cpp b/clang/utils/TableGen/ClangOpcodesEmitter.cpp
index 7e426d59359a87..a18220fe23c417 100644
--- a/clang/utils/TableGen/ClangOpcodesEmitter.cpp
+++ b/clang/utils/TableGen/ClangOpcodesEmitter.cpp
@@ -57,7 +57,7 @@ class ClangOpcodesEmitter {
 
 void Enumerate(const Record *R, StringRef N,
                std::function<void(ArrayRef<const Record *>, Twine)> &&F) {
-  llvm::SmallVector<const Record *, 2> TypePath;
+  SmallVector<const Record *, 2> TypePath;
   const auto *Types = R->getValueAsListInit("Types");
 
   std::function<void(size_t, const Twine &)> Rec;
@@ -304,7 +304,7 @@ void ClangOpcodesEmitter::EmitGroup(raw_ostream &OS, StringRef N,
   OS << "const SourceInfo &I) {\n";
 
   std::function<void(size_t, const Twine &)> Rec;
-  llvm::SmallVector<const Record *, 2> TS;
+  SmallVector<const Record *, 2> TS;
   Rec = [this, &Rec, &OS, Types, &Args, R, &TS, N,
          EmitFuncName](size_t I, const Twine &ID) {
     if (I >= Types->size()) {
diff --git a/clang/utils/TableGen/ClangOpenCLBuiltinEmitter.cpp b/clang/utils/TableGen/ClangOpenCLBuiltinEmitter.cpp
index d68dcc472a7bdb..cbbd825b3b4fff 100644
--- a/clang/utils/TableGen/ClangOpenCLBuiltinEmitter.cpp
+++ b/clang/utils/TableGen/ClangOpenCLBuiltinEmitter.cpp
@@ -515,8 +515,7 @@ void BuiltinNameEmitter::GetOverloads() {
 
     auto Signature = B->getValueAsListOfDefs("Signature");
     // Reuse signatures to avoid unnecessary duplicates.
-    auto it =
-        llvm::find_if(SignaturesList,
+    auto it = find_if(SignaturesList,
                       [&](const std::pair<std::vector<Record *>, unsigned> &a) {
                         return a.first == Signature;
                       });
@@ -688,7 +687,7 @@ void BuiltinNameEmitter::GroupBySignature() {
       CurSignatureList->push_back(Signature.second);
     }
     // Sort the list to facilitate future comparisons.
-    llvm::sort(*CurSignatureList);
+    sort(*CurSignatureList);
 
     // Check if we have already seen another function with the same list of
     // signatures.  If so, just add the name of the function.
@@ -1278,7 +1277,7 @@ void OpenCLBuiltinHeaderEmitter::emit() {
   // Iterate over all builtins; sort to follow order of definition in .td file.
   std::vector<const Record *> Builtins =
       Records.getAllDerivedDefinitions("Builtin");
-  llvm::sort(Builtins, LessRecord());
+  sort(Builtins, LessRecord());
 
   for (const auto *B : Builtins) {
     StringRef Name = B->getValueAsString("Name");
diff --git a/clang/utils/TableGen/ClangOptionDocEmitter.cpp b/clang/utils/TableGen/ClangOptionDocEmitter.cpp
index 8c32f0218e761b..d8a467fd41a2ef 100644
--- a/clang/utils/TableGen/ClangOptionDocEmitter.cpp
+++ b/clang/utils/TableGen/ClangOptionDocEmitter.cpp
@@ -136,7 +136,7 @@ Documentation extractDocumentation(const RecordKeeper &Records,
 
   auto DocumentationForOption = [&](const Record *R) -> DocumentedOption {
     auto &A = Aliases[R];
-    llvm::sort(A, CompareByName);
+    sort(A, CompareByName);
     return {R, std::move(A)};
   };
 
@@ -145,7 +145,7 @@ Documentation extractDocumentation(const RecordKeeper &Records,
     Documentation D;
 
     auto &Groups = GroupsInGroup[R];
-    llvm::sort(Groups, CompareByLocation);
+    sort(Groups, CompareByLocation);
     for (const Record *G : Groups) {
       D.Groups.emplace_back();
       D.Groups.back().Group = G;
@@ -156,7 +156,7 @@ Documentation extractDocumentation(const RecordKeeper &Records,
     }
 
     auto &Options = OptionsInGroup[R];
-    llvm::sort(Options, CompareByName);
+    sort(Options, CompareByName);
     for (const Record *O : Options)
       if (isOptionVisible(O, DocInfo))
         D.Options.push_back(DocumentationForOption(O));
diff --git a/clang/utils/TableGen/ClangSACheckersEmitter.cpp b/clang/utils/TableGen/ClangSACheckersEmitter.cpp
index 44c2d8b31655d2..998c5ed2079d71 100644
--- a/clang/utils/TableGen/ClangSACheckersEmitter.cpp
+++ b/clang/utils/TableGen/ClangSACheckersEmitter.cpp
@@ -85,7 +85,7 @@ static std::string getCheckerDocs(const Record &R) {
     return "";
 
   std::string CheckerFullName = StringRef(getCheckerFullName(&R, "-")).lower();
-  return (llvm::Twine("https://clang.llvm.org/docs/analyzer/checkers.html#") +
+  return (Twine("https://clang.llvm.org/docs/analyzer/checkers.html#") +
           CheckerFullName)
       .str();
 }
@@ -137,7 +137,7 @@ static bool isHidden(const Record *R) {
   return false;
 }
 
-static void printChecker(llvm::raw_ostream &OS, const Record &R) {
+static void printChecker(raw_ostream &OS, const Record &R) {
   OS << "CHECKER(" << "\"";
   OS.write_escaped(getCheckerFullName(&R)) << "\", ";
   OS << R.getName() << ", ";
@@ -155,8 +155,7 @@ static void printChecker(llvm::raw_ostream &OS, const Record &R) {
   OS << ")\n";
 }
 
-static void printOption(llvm::raw_ostream &OS, StringRef FullName,
-                        const Record &R) {
+static void printOption(raw_ostream &OS, StringRef FullName, const Record &R) {
   OS << "\"";
   OS.write_escaped(getCheckerOptionType(R)) << "\", \"";
   OS.write_escaped(FullName) << "\", ";
@@ -180,7 +179,7 @@ void clang::EmitClangSACheckers(const RecordKeeper &Records, raw_ostream &OS) {
   ArrayRef<const Record *> packages =
       Records.getAllDerivedDefinitions("Package");
 
-  using SortedRecords = llvm::StringMap<const Record *>;
+  using SortedRecords = StringMap<const Record *>;
 
   OS << "// This file is automatically generated. Do not edit this file by "
         "hand.\n";
diff --git a/clang/utils/TableGen/ClangSyntaxEmitter.cpp b/clang/utils/TableGen/ClangSyntaxEmitter.cpp
index 66b27be88f56f5..3457e5bd283706 100644
--- a/clang/utils/TableGen/ClangSyntaxEmitter.cpp
+++ b/clang/utils/TableGen/ClangSyntaxEmitter.cpp
@@ -33,23 +33,23 @@
 #include "llvm/TableGen/Record.h"
 #include "llvm/TableGen/TableGenBackend.h"
 
+using namespace llvm;
+
 namespace {
-using llvm::formatv;
 
 // The class hierarchy of Node types.
 // We assemble this in order to be able to define the NodeKind enum in a
 // stable and useful way, where abstract Node subclasses correspond to ranges.
 class Hierarchy {
 public:
-  Hierarchy(const llvm::RecordKeeper &Records) {
-    for (const llvm::Record *T : Records.getAllDerivedDefinitions("NodeType"))
+  Hierarchy(const RecordKeeper &Records) {
+    for (const Record *T : Records.getAllDerivedDefinitions("NodeType"))
       add(T);
-    for (const llvm::Record *Derived :
-         Records.getAllDerivedDefinitions("NodeType"))
-      if (const llvm::Record *Base = Derived->getValueAsOptionalDef("base"))
+    for (const Record *Derived : Records.getAllDerivedDefinitions("NodeType"))
+      if (const Record *Base = Derived->getValueAsOptionalDef("base"))
         link(Derived, Base);
     for (NodeType &N : AllTypes) {
-      llvm::sort(N.Derived, [](const NodeType *L, const NodeType *R) {
+      sort(N.Derived, [](const NodeType *L, const NodeType *R) {
         return L->Record->getName() < R->Record->getName();
       });
       // Alternatives nodes must have subclasses, External nodes may do.
@@ -60,20 +60,20 @@ class Hierarchy {
   }
 
   struct NodeType {
-    const llvm::Record *Record = nullptr;
+    const Record *Record = nullptr;
     const NodeType *Base = nullptr;
     std::vector<const NodeType *> Derived;
-    llvm::StringRef name() const { return Record->getName(); }
+    StringRef name() const { return Record->getName(); }
   };
 
-  NodeType &get(llvm::StringRef Name = "Node") {
+  NodeType &get(StringRef Name = "Node") {
     auto NI = ByName.find(Name);
     assert(NI != ByName.end() && "no such node");
     return *NI->second;
   }
 
   // Traverse the hierarchy in pre-order (base classes before derived).
-  void visit(llvm::function_ref<void(const NodeType &)> CB,
+  void visit(function_ref<void(const NodeType &)> CB,
              const NodeType *Start = nullptr) {
     if (Start == nullptr)
       Start = &get();
@@ -83,7 +83,7 @@ class Hierarchy {
   }
 
 private:
-  void add(const llvm::Record *R) {
+  void add(const Record *R) {
     AllTypes.emplace_back();
     AllTypes.back().Record = R;
     bool Inserted = ByName.try_emplace(R->getName(), &AllTypes.back()).second;
@@ -91,7 +91,7 @@ class Hierarchy {
     (void)Inserted;
   }
 
-  void link(const llvm::Record *Derived, const llvm::Record *Base) {
+  void link(const Record *Derived, const Record *Base) {
     auto &CN = get(Derived->getName()), &PN = get(Base->getName());
     assert(CN.Base == nullptr && "setting base twice");
     PN.Derived.push_back(&CN);
@@ -99,7 +99,7 @@ class Hierarchy {
   }
 
   std::deque<NodeType> AllTypes;
-  llvm::DenseMap<llvm::StringRef, NodeType *> ByName;
+  DenseMap<StringRef, NodeType *> ByName;
 };
 
 const Hierarchy::NodeType &firstConcrete(const Hierarchy::NodeType &N) {
@@ -110,7 +110,7 @@ const Hierarchy::NodeType &lastConcrete(const Hierarchy::NodeType &N) {
 }
 
 struct SyntaxConstraint {
-  SyntaxConstraint(const llvm::Record &R) {
+  SyntaxConstraint(const Record &R) {
     if (R.isSubClassOf("Optional")) {
       *this = SyntaxConstraint(*R.getValueAsDef("inner"));
     } else if (R.isSubClassOf("AnyToken")) {
@@ -128,9 +128,9 @@ struct SyntaxConstraint {
 
 } // namespace
 
-void clang::EmitClangSyntaxNodeList(const llvm::RecordKeeper &Records,
-                                    llvm::raw_ostream &OS) {
-  llvm::emitSourceFileHeader("Syntax tree node list", OS, Records);
+void clang::EmitClangSyntaxNodeList(const RecordKeeper &Records,
+                                    raw_ostream &OS) {
+  emitSourceFileHeader("Syntax tree node list", OS, Records);
   Hierarchy H(Records);
   OS << R"cpp(
 #ifndef NODE
@@ -175,21 +175,21 @@ void clang::EmitClangSyntaxNodeList(const llvm::RecordKeeper &Records,
 //    ///   widget.explode()
 // Leading and trailing whitespace lines are stripped.
 // The indentation of the first line is stripped from all lines.
-static void printDoc(llvm::StringRef Doc, llvm::raw_ostream &OS) {
+static void printDoc(StringRef Doc, raw_ostream &OS) {
   Doc = Doc.rtrim();
-  llvm::StringRef Line;
+  StringRef Line;
   while (Line.trim().empty() && !Doc.empty())
     std::tie(Line, Doc) = Doc.split('\n');
-  llvm::StringRef Indent = Line.take_while(llvm::isSpace);
+  StringRef Indent = Line.take_while(isSpace);
   for (; !Line.empty() || !Doc.empty(); std::tie(Line, Doc) = Doc.split('\n')) {
     Line.consume_front(Indent);
     OS << "/// " << Line << "\n";
   }
 }
 
-void clang::EmitClangSyntaxNodeClasses(const llvm::RecordKeeper &Records,
-                                       llvm::raw_ostream &OS) {
-  llvm::emitSourceFileHeader("Syntax tree node list", OS, Records);
+void clang::EmitClangSyntaxNodeClasses(const RecordKeeper &Records,
+                                       raw_ostream &OS) {
+  emitSourceFileHeader("Syntax tree node list", OS, Records);
   Hierarchy H(Records);
 
   OS << "\n// Forward-declare node types so we don't have to carefully "
@@ -218,7 +218,7 @@ void clang::EmitClangSyntaxNodeClasses(const llvm::RecordKeeper &Records,
       // Getters for sequence elements.
       for (const auto &C : N.Record->getValueAsListOfDefs("children")) {
         assert(C->isSubClassOf("Role"));
-        llvm::StringRef Role = C->getValueAsString("role");
+        StringRef Role = C->getValueAsString("role");
         SyntaxConstraint Constraint(*C->getValueAsDef("syntax"));
         for (const char *Const : {"", "const "})
           OS << formatv(
diff --git a/clang/utils/TableGen/MveEmitter.cpp b/clang/utils/TableGen/MveEmitter.cpp
index 6cfaa891241fa9..88b89d29695353 100644
--- a/clang/utils/TableGen/MveEmitter.cpp
+++ b/clang/utils/TableGen/MveEmitter.cpp
@@ -893,8 +893,8 @@ class ACLEIntrinsic {
   }
   bool hasCode() const { return Code != nullptr; }
 
-  static std::string signedHexLiteral(const llvm::APInt &iOrig) {
-    llvm::APInt i = iOrig.trunc(64);
+  static std::string signedHexLiteral(const APInt &iOrig) {
+    APInt i = iOrig.trunc(64);
     SmallString<40> s;
     i.toString(s, 16, true, true);
     return std::string(s);
@@ -907,7 +907,7 @@ class ACLEIntrinsic {
     for (const auto &kv : ImmediateArgs) {
       const ImmediateArg &IA = kv.second;
 
-      llvm::APInt lo(128, 0), hi(128, 0);
+      APInt lo(128, 0), hi(128, 0);
       switch (IA.boundsType) {
       case ImmediateArg::BoundsType::ExplicitRange:
         lo = IA.i1;
@@ -915,7 +915,7 @@ class ACLEIntrinsic {
         break;
       case ImmediateArg::BoundsType::UInt:
         lo = 0;
-        hi = llvm::APInt::getMaxValue(IA.i1).zext(128);
+        hi = APInt::getMaxValue(IA.i1).zext(128);
         break;
       }
 
@@ -925,8 +925,8 @@ class ACLEIntrinsic {
       // immediate is smaller than the _possible_ range of values for
       // its type.
       unsigned ArgTypeBits = IA.ArgType->sizeInBits();
-      llvm::APInt ArgTypeRange = llvm::APInt::getMaxValue(ArgTypeBits).zext(128);
-      llvm::APInt ActualRange = (hi-lo).trunc(64).sext(128);
+      APInt ArgTypeRange = APInt::getMaxValue(ArgTypeBits).zext(128);
+      APInt ActualRange = (hi - lo).trunc(64).sext(128);
       if (ActualRange.ult(ArgTypeRange))
         SemaChecks.push_back("SemaRef.BuiltinConstantArgRange(TheCall, " +
                              Index + ", " + signedHexLiteral(lo) + ", " +
diff --git a/clang/utils/TableGen/NeonEmitter.cpp b/clang/utils/TableGen/NeonEmitter.cpp
index 9e5480be20adac..050c7b341ccd1c 100644
--- a/clang/utils/TableGen/NeonEmitter.cpp
+++ b/clang/utils/TableGen/NeonEmitter.cpp
@@ -434,11 +434,11 @@ class Intrinsic {
 
       ImmChecks.emplace_back(ArgIdx, Kind, EltSizeInBits, VecSizeInBits);
     }
-    llvm::sort(ImmChecks.begin(), ImmChecks.end(),
-               [](const ImmCheck &a, const ImmCheck &b) {
-                 return a.getImmArgIdx() < b.getImmArgIdx();
-               }); // Sort for comparison with other intrinsics which map to the
-                   // same builtin
+    sort(ImmChecks.begin(), ImmChecks.end(),
+         [](const ImmCheck &a, const ImmCheck &b) {
+           return a.getImmArgIdx() < b.getImmArgIdx();
+         }); // Sort for comparison with other intrinsics which map to the
+             // same builtin
   }
 
   /// Get the Record that this intrinsic is based off.
@@ -456,7 +456,7 @@ class Intrinsic {
 
   /// Return true if the intrinsic takes an immediate operand.
   bool hasImmediate() const {
-    return llvm::any_of(Types, [](const Type &T) { return T.isImmediate(); });
+    return any_of(Types, [](const Type &T) { return T.isImmediate(); });
   }
 
   // Return if the supplied argument is an immediate
@@ -1320,8 +1320,8 @@ void Intrinsic::emitShadowedArgs() {
 }
 
 bool Intrinsic::protoHasScalar() const {
-  return llvm::any_of(
-      Types, [](const Type &T) { return T.isScalar() && !T.isImmediate(); });
+  return any_of(Types,
+                [](const Type &T) { return T.isScalar() && !T.isImmediate(); });
 }
 
 void Intrinsic::emitBodyAsBuiltinCall() {
@@ -1964,7 +1964,7 @@ Intrinsic &NeonEmitter::getIntrinsic(StringRef Name, ArrayRef<Type> Types,
       continue;
 
     unsigned ArgNum = 0;
-    bool MatchingArgumentTypes = llvm::all_of(Types, [&](const auto &Type) {
+    bool MatchingArgumentTypes = all_of(Types, [&](const auto &Type) {
       return Type == I.getParamType(ArgNum++);
     });
 
@@ -2022,7 +2022,7 @@ void NeonEmitter::createIntrinsic(const Record *R,
     }
   }
 
-  llvm::sort(NewTypeSpecs);
+  sort(NewTypeSpecs);
   NewTypeSpecs.erase(std::unique(NewTypeSpecs.begin(), NewTypeSpecs.end()),
 		     NewTypeSpecs.end());
   auto &Entry = IntrinsicMap[Name];
@@ -2406,7 +2406,7 @@ void NeonEmitter::run(raw_ostream &OS) {
   for (auto *I : Defs)
     I->indexBody();
 
-  llvm::stable_sort(Defs, llvm::deref<std::less<>>());
+  stable_sort(Defs, deref<std::less<>>());
 
   // Only emit a def when its requirements have been met.
   // FIXME: This loop could be made faster, but it's fast enough for now.
@@ -2419,7 +2419,7 @@ void NeonEmitter::run(raw_ostream &OS) {
          I != Defs.end(); /*No step*/) {
       bool DependenciesSatisfied = true;
       for (auto *II : (*I)->getDependencies()) {
-        if (llvm::is_contained(Defs, II))
+        if (is_contained(Defs, II))
           DependenciesSatisfied = false;
       }
       if (!DependenciesSatisfied) {
@@ -2513,7 +2513,7 @@ void NeonEmitter::runFP16(raw_ostream &OS) {
   for (auto *I : Defs)
     I->indexBody();
 
-  llvm::stable_sort(Defs, llvm::deref<std::less<>>());
+  stable_sort(Defs, deref<std::less<>>());
 
   // Only emit a def when its requirements have been met.
   // FIXME: This loop could be made faster, but it's fast enough for now.
@@ -2526,7 +2526,7 @@ void NeonEmitter::runFP16(raw_ostream &OS) {
          I != Defs.end(); /*No step*/) {
       bool DependenciesSatisfied = true;
       for (auto *II : (*I)->getDependencies()) {
-        if (llvm::is_contained(Defs, II))
+        if (is_contained(Defs, II))
           DependenciesSatisfied = false;
       }
       if (!DependenciesSatisfied) {
@@ -2621,7 +2621,7 @@ void NeonEmitter::runBF16(raw_ostream &OS) {
   for (auto *I : Defs)
     I->indexBody();
 
-  llvm::stable_sort(Defs, llvm::deref<std::less<>>());
+  stable_sort(Defs, deref<std::less<>>());
 
   // Only emit a def when its requirements have been met.
   // FIXME: This loop could be made faster, but it's fast enough for now.
@@ -2634,7 +2634,7 @@ void NeonEmitter::runBF16(raw_ostream &OS) {
          I != Defs.end(); /*No step*/) {
       bool DependenciesSatisfied = true;
       for (auto *II : (*I)->getDependencies()) {
-        if (llvm::is_contained(Defs, II))
+        if (is_contained(Defs, II))
           DependenciesSatisfied = false;
       }
       if (!DependenciesSatisfied) {
diff --git a/clang/utils/TableGen/RISCVVEmitter.cpp b/clang/utils/TableGen/RISCVVEmitter.cpp
index 4ef83e7b608dc0..de03aadefdd11c 100644
--- a/clang/utils/TableGen/RISCVVEmitter.cpp
+++ b/clang/utils/TableGen/RISCVVEmitter.cpp
@@ -502,8 +502,8 @@ void RVVEmitter::createCodeGen(raw_ostream &OS) {
   std::vector<std::unique_ptr<RVVIntrinsic>> Defs;
   createRVVIntrinsics(Defs);
   // IR name could be empty, use the stable sort preserves the relative order.
-  llvm::stable_sort(Defs, [](const std::unique_ptr<RVVIntrinsic> &A,
-                             const std::unique_ptr<RVVIntrinsic> &B) {
+  stable_sort(Defs, [](const std::unique_ptr<RVVIntrinsic> &A,
+                       const std::unique_ptr<RVVIntrinsic> &B) {
     if (A->getIRName() == B->getIRName())
       return (A->getPolicyAttrs() < B->getPolicyAttrs());
     return (A->getIRName() < B->getIRName());
@@ -606,7 +606,7 @@ void RVVEmitter::createRVVIntrinsics(
         BasicPrototype, /*IsMasked=*/false,
         /*HasMaskedOffOperand=*/false, HasVL, NF, UnMaskedPolicyScheme,
         DefaultPolicy, IsTuple);
-    llvm::SmallVector<PrototypeDescriptor> MaskedPrototype;
+    SmallVector<PrototypeDescriptor> MaskedPrototype;
     if (HasMasked)
       MaskedPrototype = RVVIntrinsic::computeBuiltinTypes(
           BasicPrototype, /*IsMasked=*/true, HasMaskedOffOperand, HasVL, NF,
diff --git a/clang/utils/TableGen/SveEmitter.cpp b/clang/utils/TableGen/SveEmitter.cpp
index 5abf6fc49bc30b..2f9747e7de3de2 100644
--- a/clang/utils/TableGen/SveEmitter.cpp
+++ b/clang/utils/TableGen/SveEmitter.cpp
@@ -206,7 +206,7 @@ class Intrinsic {
   ArrayRef<SVEType> getTypes() const { return Types; }
   SVEType getParamType(unsigned I) const { return Types[I + 1]; }
   unsigned getNumParams() const {
-    return Proto.size() - (2 * llvm::count(Proto, '.')) - 1;
+    return Proto.size() - (2 * count(Proto, '.')) - 1;
   }
 
   uint64_t getFlags() const { return Flags; }
@@ -281,11 +281,11 @@ class SVEEmitter {
   static const std::array<ReinterpretTypeInfo, 12> Reinterprets;
 
   const RecordKeeper &Records;
-  llvm::StringMap<uint64_t> EltTypes;
-  llvm::StringMap<uint64_t> MemEltTypes;
-  llvm::StringMap<uint64_t> FlagTypes;
-  llvm::StringMap<uint64_t> MergeTypes;
-  llvm::StringMap<uint64_t> ImmCheckTypes;
+  StringMap<uint64_t> EltTypes;
+  StringMap<uint64_t> MemEltTypes;
+  StringMap<uint64_t> FlagTypes;
+  StringMap<uint64_t> MergeTypes;
+  StringMap<uint64_t> ImmCheckTypes;
 
 public:
   SVEEmitter(const RecordKeeper &R) : Records(R) {
@@ -322,7 +322,7 @@ class SVEEmitter {
     auto It = FlagTypes.find(MaskName);
     if (It != FlagTypes.end()) {
       uint64_t Mask = It->getValue();
-      unsigned Shift = llvm::countr_zero(Mask);
+      unsigned Shift = countr_zero(Mask);
       assert(Shift < 64 && "Mask value produced an invalid shift value");
       return (V << Shift) & Mask;
     }
@@ -1187,7 +1187,7 @@ void SVEEmitter::createIntrinsic(
   }
 
   // Remove duplicate type specs.
-  llvm::sort(TypeSpecs);
+  sort(TypeSpecs);
   TypeSpecs.erase(std::unique(TypeSpecs.begin(), TypeSpecs.end()),
                   TypeSpecs.end());
 
@@ -1433,8 +1433,8 @@ void SVEEmitter::createBuiltins(raw_ostream &OS) {
     createIntrinsic(R, Defs);
 
   // The mappings must be sorted based on BuiltinID.
-  llvm::sort(Defs, [](const std::unique_ptr<Intrinsic> &A,
-                      const std::unique_ptr<Intrinsic> &B) {
+  sort(Defs, [](const std::unique_ptr<Intrinsic> &A,
+                const std::unique_ptr<Intrinsic> &B) {
     return A->getMangledName() < B->getMangledName();
   });
 
@@ -1475,8 +1475,8 @@ void SVEEmitter::createCodeGenMap(raw_ostream &OS) {
     createIntrinsic(R, Defs);
 
   // The mappings must be sorted based on BuiltinID.
-  llvm::sort(Defs, [](const std::unique_ptr<Intrinsic> &A,
-                      const std::unique_ptr<Intrinsic> &B) {
+  sort(Defs, [](const std::unique_ptr<Intrinsic> &A,
+                const std::unique_ptr<Intrinsic> &B) {
     return A->getMangledName() < B->getMangledName();
   });
 
@@ -1508,12 +1508,11 @@ void SVEEmitter::createRangeChecks(raw_ostream &OS) {
     createIntrinsic(R, Defs);
 
   // The mappings must be sorted based on BuiltinID.
-  llvm::sort(Defs, [](const std::unique_ptr<Intrinsic> &A,
-                      const std::unique_ptr<Intrinsic> &B) {
+  sort(Defs, [](const std::unique_ptr<Intrinsic> &A,
+                const std::unique_ptr<Intrinsic> &B) {
     return A->getMangledName() < B->getMangledName();
   });
 
-
   OS << "#ifdef GET_SVE_IMMEDIATE_CHECK\n";
 
   // Ensure these are only emitted once.
@@ -1641,8 +1640,8 @@ void SVEEmitter::createSMEBuiltins(raw_ostream &OS) {
   }
 
   // The mappings must be sorted based on BuiltinID.
-  llvm::sort(Defs, [](const std::unique_ptr<Intrinsic> &A,
-                      const std::unique_ptr<Intrinsic> &B) {
+  sort(Defs, [](const std::unique_ptr<Intrinsic> &A,
+                const std::unique_ptr<Intrinsic> &B) {
     return A->getMangledName() < B->getMangledName();
   });
 
@@ -1669,8 +1668,8 @@ void SVEEmitter::createSMECodeGenMap(raw_ostream &OS) {
   }
 
   // The mappings must be sorted based on BuiltinID.
-  llvm::sort(Defs, [](const std::unique_ptr<Intrinsic> &A,
-                      const std::unique_ptr<Intrinsic> &B) {
+  sort(Defs, [](const std::unique_ptr<Intrinsic> &A,
+                const std::unique_ptr<Intrinsic> &B) {
     return A->getMangledName() < B->getMangledName();
   });
 
@@ -1703,12 +1702,11 @@ void SVEEmitter::createSMERangeChecks(raw_ostream &OS) {
   }
 
   // The mappings must be sorted based on BuiltinID.
-  llvm::sort(Defs, [](const std::unique_ptr<Intrinsic> &A,
-                      const std::unique_ptr<Intrinsic> &B) {
+  sort(Defs, [](const std::unique_ptr<Intrinsic> &A,
+                const std::unique_ptr<Intrinsic> &B) {
     return A->getMangledName() < B->getMangledName();
   });
 
-
   OS << "#ifdef GET_SME_IMMEDIATE_CHECK\n";
 
   // Ensure these are only emitted once.
@@ -1790,7 +1788,7 @@ void SVEEmitter::createStreamingAttrs(raw_ostream &OS, ACLEKind Kind) {
 
   OS << "#ifdef GET_" << ExtensionKind << "_STREAMING_ATTRS\n";
 
-  llvm::StringMap<std::set<std::string>> StreamingMap;
+  StringMap<std::set<std::string>> StreamingMap;
 
   uint64_t IsStreamingFlag = getEnumValueForFlag("IsStreaming");
   uint64_t VerifyRuntimeMode = getEnumValueForFlag("VerifyRuntimeMode");



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