diff --git a/clang-tools-extra/clang-tidy/GlobList.cpp b/clang-tools-extra/clang-tidy/GlobList.cpp
@@ -19,12 +19,17 @@ static bool consumeNegativeIndicator(StringRef &GlobList) {
   return GlobList.consume_front("-");
 }
 
-// Converts first glob from the comma-separated list of globs to Regex and
-// removes it and the trailing comma from the GlobList.
-static llvm::Regex consumeGlob(StringRef &GlobList) {
+// Extracts the first glob from the comma-separated list of globs,
+// removes it and the trailing comma from the GlobList and
+// returns the extracted glob.
+static llvm::StringRef extractNextGlob(StringRef &GlobList) {
   StringRef UntrimmedGlob = GlobList.substr(0, GlobList.find_first_of(",\n"));
   StringRef Glob = UntrimmedGlob.trim();
   GlobList = GlobList.substr(UntrimmedGlob.size() + 1);
+  return Glob;
+}
+
+static llvm::Regex createRegexFromGlob(StringRef &Glob) {
   SmallString<128> RegexText("^");
   StringRef MetaChars("()^$|*+?.[]\\{}");
   for (char C : Glob) {
@@ -43,7 +48,8 @@ GlobList::GlobList(StringRef Globs, bool KeepNegativeGlobs /* =true */) {
   do {
     GlobListItem Item;
     Item.IsPositive = !consumeNegativeIndicator(Globs);
-    Item.Regex = consumeGlob(Globs);
+    Item.Text = extractNextGlob(Globs);
+    Item.Regex = createRegexFromGlob(Item.Text);
     if (Item.IsPositive || KeepNegativeGlobs)
       Items.push_back(std::move(Item));
   } while (!Globs.empty());

diff --git a/clang-tools-extra/clang-tidy/GlobList.h b/clang-tools-extra/clang-tidy/GlobList.h
@@ -44,8 +44,12 @@ class GlobList {
   struct GlobListItem {
     bool IsPositive;
     llvm::Regex Regex;
+    llvm::StringRef Text;
   };
   SmallVector<GlobListItem, 0> Items;
+
+public:
+  const SmallVectorImpl<GlobListItem> &getItems() const { return Items; };
 };
 
 /// A \p GlobList that caches search results, so that search is performed only

diff --git a/clang-tools-extra/clang-tidy/bugprone/BugproneTidyModule.cpp b/clang-tools-extra/clang-tidy/bugprone/BugproneTidyModule.cpp
@@ -54,6 +54,7 @@
 #include "PosixReturnCheck.h"
 #include "RedundantBranchConditionCheck.h"
 #include "ReservedIdentifierCheck.h"
+#include "ReturnConstRefFromParameterCheck.h"
 #include "SharedPtrArrayMismatchCheck.h"
 #include "SignalHandlerCheck.h"
 #include "SignedCharMisuseCheck.h"
@@ -137,6 +138,8 @@ class BugproneModule : public ClangTidyModule {
         "bugprone-inaccurate-erase");
     CheckFactories.registerCheck<IncorrectEnableIfCheck>(
         "bugprone-incorrect-enable-if");
+    CheckFactories.registerCheck<ReturnConstRefFromParameterCheck>(
+        "bugprone-return-const-ref-from-parameter");
     CheckFactories.registerCheck<SwitchMissingDefaultCaseCheck>(
         "bugprone-switch-missing-default-case");
     CheckFactories.registerCheck<IncDecInConditionsCheck>(

diff --git a/clang-tools-extra/clang-tidy/bugprone/CMakeLists.txt b/clang-tools-extra/clang-tidy/bugprone/CMakeLists.txt
@@ -26,6 +26,7 @@ add_clang_library(clangTidyBugproneModule
   ImplicitWideningOfMultiplicationResultCheck.cpp
   InaccurateEraseCheck.cpp
   IncorrectEnableIfCheck.cpp
+  ReturnConstRefFromParameterCheck.cpp
   SuspiciousStringviewDataUsageCheck.cpp
   SwitchMissingDefaultCaseCheck.cpp
   IncDecInConditionsCheck.cpp

diff --git a/clang-tools-extra/clang-tidy/bugprone/EasilySwappableParametersCheck.cpp b/clang-tools-extra/clang-tidy/bugprone/EasilySwappableParametersCheck.cpp
@@ -967,7 +967,8 @@ approximateStandardConversionSequence(const TheCheck &Check, QualType From,
   // Get out the qualifiers of the original type. This will always be
   // re-applied to the WorkType to ensure it is the same qualification as the
   // original From was.
-  auto QualifiersToApply = From.split().Quals.getAsOpaqueValue();
+  auto FastQualifiersToApply = static_cast<unsigned>(
+      From.split().Quals.getAsOpaqueValue() & Qualifiers::FastMask);
 
   // LValue->RValue is irrelevant for the check, because it is a thing to be
   // done at a call site, and will be performed if need be performed.
@@ -993,7 +994,7 @@ approximateStandardConversionSequence(const TheCheck &Check, QualType From,
     // "const double -> double".
     LLVM_DEBUG(llvm::dbgs()
                << "--- approximateStdConv. Conversion between numerics.\n");
-    WorkType = QualType{ToBuiltin, QualifiersToApply};
+    WorkType = QualType{ToBuiltin, FastQualifiersToApply};
   }
 
   const auto *FromEnum = WorkType->getAs<EnumType>();
@@ -1002,7 +1003,7 @@ approximateStandardConversionSequence(const TheCheck &Check, QualType From,
     // Unscoped enumerations (or enumerations in C) convert to numerics.
     LLVM_DEBUG(llvm::dbgs()
                << "--- approximateStdConv. Unscoped enum to numeric.\n");
-    WorkType = QualType{ToBuiltin, QualifiersToApply};
+    WorkType = QualType{ToBuiltin, FastQualifiersToApply};
   } else if (FromNumeric && ToEnum && ToEnum->isUnscopedEnumerationType()) {
     // Numeric types convert to enumerations only in C.
     if (Ctx.getLangOpts().CPlusPlus) {
@@ -1013,7 +1014,7 @@ approximateStandardConversionSequence(const TheCheck &Check, QualType From,
 
     LLVM_DEBUG(llvm::dbgs()
                << "--- approximateStdConv. Numeric to unscoped enum.\n");
-    WorkType = QualType{ToEnum, QualifiersToApply};
+    WorkType = QualType{ToEnum, FastQualifiersToApply};
   }
 
   // Check for pointer conversions.
@@ -1022,14 +1023,14 @@ approximateStandardConversionSequence(const TheCheck &Check, QualType From,
   if (FromPtr && ToPtr) {
     if (ToPtr->isVoidPointerType()) {
       LLVM_DEBUG(llvm::dbgs() << "--- approximateStdConv. To void pointer.\n");
-      WorkType = QualType{ToPtr, QualifiersToApply};
+      WorkType = QualType{ToPtr, FastQualifiersToApply};
     }
 
     const auto *FromRecordPtr = FromPtr->getPointeeCXXRecordDecl();
     const auto *ToRecordPtr = ToPtr->getPointeeCXXRecordDecl();
     if (isDerivedToBase(FromRecordPtr, ToRecordPtr)) {
       LLVM_DEBUG(llvm::dbgs() << "--- approximateStdConv. Derived* to Base*\n");
-      WorkType = QualType{ToPtr, QualifiersToApply};
+      WorkType = QualType{ToPtr, FastQualifiersToApply};
     }
   }
 
@@ -1039,7 +1040,7 @@ approximateStandardConversionSequence(const TheCheck &Check, QualType From,
   const auto *ToRecord = To->getAsCXXRecordDecl();
   if (isDerivedToBase(FromRecord, ToRecord)) {
     LLVM_DEBUG(llvm::dbgs() << "--- approximateStdConv. Derived To Base.\n");
-    WorkType = QualType{ToRecord->getTypeForDecl(), QualifiersToApply};
+    WorkType = QualType{ToRecord->getTypeForDecl(), FastQualifiersToApply};
   }
 
   if (Ctx.getLangOpts().CPlusPlus17 && FromPtr && ToPtr) {
@@ -1054,7 +1055,7 @@ approximateStandardConversionSequence(const TheCheck &Check, QualType From,
         !ToFunctionPtr->hasNoexceptExceptionSpec()) {
       LLVM_DEBUG(llvm::dbgs() << "--- approximateStdConv. noexcept function "
                                  "pointer to non-noexcept.\n");
-      WorkType = QualType{ToPtr, QualifiersToApply};
+      WorkType = QualType{ToPtr, FastQualifiersToApply};
     }
   }
 

diff --git a/clang-tools-extra/clang-tidy/bugprone/LambdaFunctionNameCheck.cpp b/clang-tools-extra/clang-tidy/bugprone/LambdaFunctionNameCheck.cpp
@@ -8,7 +8,9 @@
 
 #include "LambdaFunctionNameCheck.h"
 #include "clang/AST/ASTContext.h"
+#include "clang/AST/DeclCXX.h"
 #include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/ASTMatchers/ASTMatchers.h"
 #include "clang/Frontend/CompilerInstance.h"
 #include "clang/Lex/MacroInfo.h"
 #include "clang/Lex/Preprocessor.h"
@@ -56,6 +58,8 @@ class MacroExpansionsWithFileAndLine : public PPCallbacks {
   LambdaFunctionNameCheck::SourceRangeSet* SuppressMacroExpansions;
 };
 
+AST_MATCHER(CXXMethodDecl, isInLambda) { return Node.getParent()->isLambda(); }
+
 } // namespace
 
 LambdaFunctionNameCheck::LambdaFunctionNameCheck(StringRef Name,
@@ -69,9 +73,13 @@ void LambdaFunctionNameCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) {
 }
 
 void LambdaFunctionNameCheck::registerMatchers(MatchFinder *Finder) {
-  // Match on PredefinedExprs inside a lambda.
-  Finder->addMatcher(predefinedExpr(hasAncestor(lambdaExpr())).bind("E"),
-                     this);
+  Finder->addMatcher(
+      cxxMethodDecl(isInLambda(),
+                    hasBody(forEachDescendant(
+                        predefinedExpr(hasAncestor(cxxMethodDecl().bind("fn")))
+                            .bind("E"))),
+                    equalsBoundNode("fn")),
+      this);
 }
 
 void LambdaFunctionNameCheck::registerPPCallbacks(

diff --git a/clang-tools-extra/clang-tidy/bugprone/ReturnConstRefFromParameterCheck.cpp b/clang-tools-extra/clang-tidy/bugprone/ReturnConstRefFromParameterCheck.cpp
@@ -0,0 +1,34 @@
+//===--- ReturnConstRefFromParameterCheck.cpp - clang-tidy ----------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "ReturnConstRefFromParameterCheck.h"
+#include "../utils/Matchers.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/ASTMatchers/ASTMatchers.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang::tidy::bugprone {
+
+void ReturnConstRefFromParameterCheck::registerMatchers(MatchFinder *Finder) {
+  Finder->addMatcher(
+      returnStmt(hasReturnValue(declRefExpr(to(parmVarDecl(hasType(
+                     hasCanonicalType(matchers::isReferenceToConst())))))))
+          .bind("ret"),
+      this);
+}
+
+void ReturnConstRefFromParameterCheck::check(
+    const MatchFinder::MatchResult &Result) {
+  const auto *R = Result.Nodes.getNodeAs<ReturnStmt>("ret");
+  diag(R->getRetValue()->getBeginLoc(),
+       "returning a constant reference parameter may cause a use-after-free "
+       "when the parameter is constructed from a temporary");
+}
+
+} // namespace clang::tidy::bugprone
diff --git a/clang-tools-extra/clang-tidy/bugprone/ReturnConstRefFromParameterCheck.h b/clang-tools-extra/clang-tidy/bugprone/ReturnConstRefFromParameterCheck.h
@@ -0,0 +1,40 @@
+//===--- ReturnConstRefFromParameterCheck.h - clang-tidy --------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_RETURNCONSTREFFROMPARAMETERCHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_RETURNCONSTREFFROMPARAMETERCHECK_H
+
+#include "../ClangTidyCheck.h"
+
+namespace clang::tidy::bugprone {
+
+/// Detects return statements that return a constant reference parameter as
+/// constant reference. This may cause use-after-free errors if the caller uses
+/// xvalues as arguments.
+///
+/// For the user-facing documentation see:
+/// http://clang.llvm.org/extra/clang-tidy/checks/bugprone/return-const-ref-from-parameter.html
+class ReturnConstRefFromParameterCheck : public ClangTidyCheck {
+public:
+  ReturnConstRefFromParameterCheck(StringRef Name, ClangTidyContext *Context)
+      : ClangTidyCheck(Name, Context) {}
+  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+  std::optional<TraversalKind> getCheckTraversalKind() const override {
+    // Use 'AsIs' to make sure the return type is exactly the same as the
+    // parameter type.
+    return TK_AsIs;
+  }
+  bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
+    return LangOpts.CPlusPlus;
+  }
+};
+
+} // namespace clang::tidy::bugprone
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_RETURNCONSTREFFROMPARAMETERCHECK_H
diff --git a/clang-tools-extra/clang-tidy/modernize/CMakeLists.txt b/clang-tools-extra/clang-tidy/modernize/CMakeLists.txt
@@ -16,6 +16,7 @@ add_clang_library(clangTidyModernizeModule
   MakeSharedCheck.cpp
   MakeSmartPtrCheck.cpp
   MakeUniqueCheck.cpp
+  MinMaxUseInitializerListCheck.cpp
   ModernizeTidyModule.cpp
   PassByValueCheck.cpp
   RawStringLiteralCheck.cpp

diff --git a/clang-tools-extra/clang-tidy/modernize/MinMaxUseInitializerListCheck.cpp b/clang-tools-extra/clang-tidy/modernize/MinMaxUseInitializerListCheck.cpp
@@ -0,0 +1,271 @@
+//===--- MinMaxUseInitializerListCheck.cpp - clang-tidy -------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "MinMaxUseInitializerListCheck.h"
+#include "../utils/ASTUtils.h"
+#include "../utils/LexerUtils.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/Frontend/CompilerInstance.h"
+#include "clang/Lex/Lexer.h"
+
+using namespace clang;
+
+namespace {
+
+struct FindArgsResult {
+  const Expr *First;
+  const Expr *Last;
+  const Expr *Compare;
+  SmallVector<const clang::Expr *, 2> Args;
+};
+
+} // anonymous namespace
+
+using namespace clang::ast_matchers;
+
+namespace clang::tidy::modernize {
+
+static FindArgsResult findArgs(const CallExpr *Call) {
+  FindArgsResult Result;
+  Result.First = nullptr;
+  Result.Last = nullptr;
+  Result.Compare = nullptr;
+
+  //   check if the function has initializer list argument
+  if (Call->getNumArgs() < 3) {
+    auto ArgIterator = Call->arguments().begin();
+
+    const auto *InitListExpr =
+        dyn_cast<CXXStdInitializerListExpr>(*ArgIterator);
+    const auto *InitList =
+        InitListExpr != nullptr
+            ? dyn_cast<clang::InitListExpr>(
+                  InitListExpr->getSubExpr()->IgnoreImplicit())
+            : nullptr;
+
+    if (InitList) {
+      Result.Args.append(InitList->inits().begin(), InitList->inits().end());
+      Result.First = *ArgIterator;
+      Result.Last = *ArgIterator;
+
+      // check if there is a comparison argument
+      std::advance(ArgIterator, 1);
+      if (ArgIterator != Call->arguments().end())
+        Result.Compare = *ArgIterator;
+
+      return Result;
+    }
+    Result.Args = SmallVector<const Expr *>(Call->arguments());
+  } else {
+    // if it has 3 arguments then the last will be the comparison
+    Result.Compare = *(std::next(Call->arguments().begin(), 2));
+    Result.Args = SmallVector<const Expr *>(llvm::drop_end(Call->arguments()));
+  }
+  Result.First = Result.Args.front();
+  Result.Last = Result.Args.back();
+
+  return Result;
+}
+
+static SmallVector<FixItHint>
+generateReplacements(const MatchFinder::MatchResult &Match,
+                     const CallExpr *TopCall, const FindArgsResult &Result,
+                     const bool IgnoreNonTrivialTypes,
+                     const std::uint64_t IgnoreTrivialTypesOfSizeAbove) {
+  SmallVector<FixItHint> FixItHints;
+  const SourceManager &SourceMngr = *Match.SourceManager;
+  const LangOptions &LanguageOpts = Match.Context->getLangOpts();
+
+  const QualType ResultType = TopCall->getDirectCallee()
+                                  ->getReturnType()
+                                  .getCanonicalType()
+                                  .getNonReferenceType()
+                                  .getUnqualifiedType();
+
+  // check if the type is trivial
+  const bool IsResultTypeTrivial = ResultType.isTrivialType(*Match.Context);
+
+  if ((!IsResultTypeTrivial && IgnoreNonTrivialTypes))
+    return FixItHints;
+
+  if (IsResultTypeTrivial &&
+      static_cast<std::uint64_t>(
+          Match.Context->getTypeSizeInChars(ResultType).getQuantity()) >
+          IgnoreTrivialTypesOfSizeAbove)
+    return FixItHints;
+
+  for (const Expr *Arg : Result.Args) {
+    const auto *InnerCall = dyn_cast<CallExpr>(Arg->IgnoreParenImpCasts());
+
+    // If the argument is not a nested call
+    if (!InnerCall) {
+      // check if typecast is required
+      const QualType ArgType = Arg->IgnoreParenImpCasts()
+                                   ->getType()
+                                   .getCanonicalType()
+                                   .getUnqualifiedType();
+
+      if (ArgType == ResultType)
+        continue;
+
+      const StringRef ArgText = Lexer::getSourceText(
+          CharSourceRange::getTokenRange(Arg->getSourceRange()), SourceMngr,
+          LanguageOpts);
+
+      const auto Replacement = Twine("static_cast<")
+                                   .concat(ResultType.getAsString(LanguageOpts))
+                                   .concat(">(")
+                                   .concat(ArgText)
+                                   .concat(")")
+                                   .str();
+
+      FixItHints.push_back(
+          FixItHint::CreateReplacement(Arg->getSourceRange(), Replacement));
+      continue;
+    }
+
+    const FindArgsResult InnerResult = findArgs(InnerCall);
+
+    // if the nested call doesn't have arguments skip it
+    if (!InnerResult.First || !InnerResult.Last)
+      continue;
+
+    // if the nested call is not the same as the top call
+    if (InnerCall->getDirectCallee()->getQualifiedNameAsString() !=
+        TopCall->getDirectCallee()->getQualifiedNameAsString())
+      continue;
+
+    // if the nested call doesn't have the same compare function
+    if ((Result.Compare || InnerResult.Compare) &&
+        !utils::areStatementsIdentical(Result.Compare, InnerResult.Compare,
+                                       *Match.Context))
+      continue;
+
+    // remove the function call
+    FixItHints.push_back(
+        FixItHint::CreateRemoval(InnerCall->getCallee()->getSourceRange()));
+
+    // remove the parentheses
+    const auto LParen = utils::lexer::findNextTokenSkippingComments(
+        InnerCall->getCallee()->getEndLoc(), SourceMngr, LanguageOpts);
+    if (LParen.has_value() && LParen->is(tok::l_paren))
+      FixItHints.push_back(
+          FixItHint::CreateRemoval(SourceRange(LParen->getLocation())));
+    FixItHints.push_back(
+        FixItHint::CreateRemoval(SourceRange(InnerCall->getRParenLoc())));
+
+    // if the inner call has an initializer list arg
+    if (InnerResult.First == InnerResult.Last) {
+      // remove the initializer list braces
+      FixItHints.push_back(FixItHint::CreateRemoval(
+          CharSourceRange::getTokenRange(InnerResult.First->getBeginLoc())));
+      FixItHints.push_back(FixItHint::CreateRemoval(
+          CharSourceRange::getTokenRange(InnerResult.First->getEndLoc())));
+    }
+
+    const SmallVector<FixItHint> InnerReplacements = generateReplacements(
+        Match, InnerCall, InnerResult, IgnoreNonTrivialTypes,
+        IgnoreTrivialTypesOfSizeAbove);
+
+    FixItHints.append(InnerReplacements);
+
+    if (InnerResult.Compare) {
+      // find the comma after the value arguments
+      const auto Comma = utils::lexer::findNextTokenSkippingComments(
+          InnerResult.Last->getEndLoc(), SourceMngr, LanguageOpts);
+
+      // remove the comma and the comparison
+      if (Comma.has_value() && Comma->is(tok::comma))
+        FixItHints.push_back(
+            FixItHint::CreateRemoval(SourceRange(Comma->getLocation())));
+
+      FixItHints.push_back(
+          FixItHint::CreateRemoval(InnerResult.Compare->getSourceRange()));
+    }
+  }
+
+  return FixItHints;
+}
+
+MinMaxUseInitializerListCheck::MinMaxUseInitializerListCheck(
+    StringRef Name, ClangTidyContext *Context)
+    : ClangTidyCheck(Name, Context),
+      IgnoreNonTrivialTypes(Options.get("IgnoreNonTrivialTypes", true)),
+      IgnoreTrivialTypesOfSizeAbove(
+          Options.get("IgnoreTrivialTypesOfSizeAbove", 32L)),
+      Inserter(Options.getLocalOrGlobal("IncludeStyle",
+                                        utils::IncludeSorter::IS_LLVM),
+               areDiagsSelfContained()) {}
+
+void MinMaxUseInitializerListCheck::storeOptions(
+    ClangTidyOptions::OptionMap &Opts) {
+  Options.store(Opts, "IgnoreNonTrivialTypes", IgnoreNonTrivialTypes);
+  Options.store(Opts, "IgnoreTrivialTypesOfSizeAbove",
+                IgnoreTrivialTypesOfSizeAbove);
+  Options.store(Opts, "IncludeStyle", Inserter.getStyle());
+}
+
+void MinMaxUseInitializerListCheck::registerMatchers(MatchFinder *Finder) {
+  auto CreateMatcher = [](const StringRef FunctionName) {
+    auto FuncDecl = functionDecl(hasName(FunctionName));
+    auto Expression = callExpr(callee(FuncDecl));
+
+    return callExpr(callee(FuncDecl),
+                    anyOf(hasArgument(0, Expression),
+                          hasArgument(1, Expression),
+                          hasArgument(0, cxxStdInitializerListExpr())),
+                    unless(hasParent(Expression)))
+        .bind("topCall");
+  };
+
+  Finder->addMatcher(CreateMatcher("::std::max"), this);
+  Finder->addMatcher(CreateMatcher("::std::min"), this);
+}
+
+void MinMaxUseInitializerListCheck::registerPPCallbacks(
+    const SourceManager &SM, Preprocessor *PP, Preprocessor *ModuleExpanderPP) {
+  Inserter.registerPreprocessor(PP);
+}
+
+void MinMaxUseInitializerListCheck::check(
+    const MatchFinder::MatchResult &Match) {
+
+  const auto *TopCall = Match.Nodes.getNodeAs<CallExpr>("topCall");
+
+  const FindArgsResult Result = findArgs(TopCall);
+  const SmallVector<FixItHint> Replacements =
+      generateReplacements(Match, TopCall, Result, IgnoreNonTrivialTypes,
+                           IgnoreTrivialTypesOfSizeAbove);
+
+  if (Replacements.empty())
+    return;
+
+  const DiagnosticBuilder Diagnostic =
+      diag(TopCall->getBeginLoc(),
+           "do not use nested 'std::%0' calls, use an initializer list instead")
+      << TopCall->getDirectCallee()->getName()
+      << Inserter.createIncludeInsertion(
+             Match.SourceManager->getFileID(TopCall->getBeginLoc()),
+             "<algorithm>");
+
+  // if the top call doesn't have an initializer list argument
+  if (Result.First != Result.Last) {
+    // add { and } insertions
+    Diagnostic << FixItHint::CreateInsertion(Result.First->getBeginLoc(), "{");
+
+    Diagnostic << FixItHint::CreateInsertion(
+        Lexer::getLocForEndOfToken(Result.Last->getEndLoc(), 0,
+                                   *Match.SourceManager,
+                                   Match.Context->getLangOpts()),
+        "}");
+  }
+
+  Diagnostic << Replacements;
+}
+
+} // namespace clang::tidy::modernize
diff --git a/clang-tools-extra/clang-tidy/modernize/MinMaxUseInitializerListCheck.h b/clang-tools-extra/clang-tidy/modernize/MinMaxUseInitializerListCheck.h
@@ -0,0 +1,56 @@
+//===--- MinMaxUseInitializerListCheck.h - clang-tidy -----------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_MINMAXUSEINITIALIZERLISTCHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_MINMAXUSEINITIALIZERLISTCHECK_H
+
+#include "../ClangTidyCheck.h"
+#include "../utils/IncludeInserter.h"
+
+namespace clang::tidy::modernize {
+
+/// Replaces nested ``std::min`` and ``std::max`` calls with an initializer list
+/// where applicable.
+///
+/// For example:
+///
+/// \code
+///   int a = std::max(std::max(i, j), k);
+/// \endcode
+///
+/// This code is transformed to:
+///
+/// \code
+///   int a = std::max({i, j, k});
+/// \endcode
+class MinMaxUseInitializerListCheck : public ClangTidyCheck {
+public:
+  MinMaxUseInitializerListCheck(StringRef Name, ClangTidyContext *Context);
+
+  void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
+  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+  void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
+                           Preprocessor *ModuleExpanderPP) override;
+  void check(const ast_matchers::MatchFinder::MatchResult &Match) override;
+
+  bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
+    return LangOpts.CPlusPlus11;
+  }
+  std::optional<TraversalKind> getCheckTraversalKind() const override {
+    return TK_IgnoreUnlessSpelledInSource;
+  }
+
+private:
+  bool IgnoreNonTrivialTypes;
+  std::uint64_t IgnoreTrivialTypesOfSizeAbove;
+  utils::IncludeInserter Inserter;
+};
+
+} // namespace clang::tidy::modernize
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_MINMAXUSEINITIALIZERLISTCHECK_H
diff --git a/clang-tools-extra/clang-tidy/modernize/ModernizeTidyModule.cpp b/clang-tools-extra/clang-tidy/modernize/ModernizeTidyModule.cpp
@@ -18,6 +18,7 @@
 #include "MacroToEnumCheck.h"
 #include "MakeSharedCheck.h"
 #include "MakeUniqueCheck.h"
+#include "MinMaxUseInitializerListCheck.h"
 #include "PassByValueCheck.h"
 #include "RawStringLiteralCheck.h"
 #include "RedundantVoidArgCheck.h"
@@ -68,6 +69,8 @@ class ModernizeModule : public ClangTidyModule {
     CheckFactories.registerCheck<MacroToEnumCheck>("modernize-macro-to-enum");
     CheckFactories.registerCheck<MakeSharedCheck>("modernize-make-shared");
     CheckFactories.registerCheck<MakeUniqueCheck>("modernize-make-unique");
+    CheckFactories.registerCheck<MinMaxUseInitializerListCheck>(
+        "modernize-min-max-use-initializer-list");
     CheckFactories.registerCheck<PassByValueCheck>("modernize-pass-by-value");
     CheckFactories.registerCheck<UseDesignatedInitializersCheck>(
         "modernize-use-designated-initializers");

diff --git a/clang-tools-extra/clang-tidy/modernize/UseStartsEndsWithCheck.cpp b/clang-tools-extra/clang-tidy/modernize/UseStartsEndsWithCheck.cpp
@@ -43,7 +43,9 @@ void UseStartsEndsWithCheck::registerMatchers(MatchFinder *Finder) {
       callee(cxxMethodDecl(hasName("find")).bind("find_fun")),
       // ... on a class with a starts_with function.
       on(hasType(
-          hasCanonicalType(hasDeclaration(ClassWithStartsWithFunction)))));
+          hasCanonicalType(hasDeclaration(ClassWithStartsWithFunction)))),
+      // Bind search expression.
+      hasArgument(0, expr().bind("search_expr")));
 
   const auto RFindExpr = cxxMemberCallExpr(
       // A method call with a second argument of zero...
@@ -52,15 +54,68 @@ void UseStartsEndsWithCheck::registerMatchers(MatchFinder *Finder) {
       callee(cxxMethodDecl(hasName("rfind")).bind("find_fun")),
       // ... on a class with a starts_with function.
       on(hasType(
-          hasCanonicalType(hasDeclaration(ClassWithStartsWithFunction)))));
+          hasCanonicalType(hasDeclaration(ClassWithStartsWithFunction)))),
+      // Bind search expression.
+      hasArgument(0, expr().bind("search_expr")));
+
+  // Match a string literal and an integer or strlen() call matching the length.
+  const auto HasStringLiteralAndLengthArgs = [](const auto StringArgIndex,
+                                                const auto LengthArgIndex) {
+    return allOf(
+        hasArgument(StringArgIndex, stringLiteral().bind("string_literal_arg")),
+        hasArgument(LengthArgIndex,
+                    anyOf(integerLiteral().bind("integer_literal_size_arg"),
+                          callExpr(callee(functionDecl(parameterCountIs(1),
+                                                       hasName("strlen"))),
+                                   hasArgument(0, stringLiteral().bind(
+                                                      "strlen_arg"))))));
+  };
+
+  // Match a string variable and a call to length() or size().
+  const auto HasStringVariableAndSizeCallArgs = [](const auto StringArgIndex,
+                                                   const auto LengthArgIndex) {
+    return allOf(
+        hasArgument(StringArgIndex, declRefExpr(hasDeclaration(
+                                        decl().bind("string_var_decl")))),
+        hasArgument(LengthArgIndex,
+                    cxxMemberCallExpr(
+                        callee(cxxMethodDecl(isConst(), parameterCountIs(0),
+                                             hasAnyName("size", "length"))),
+                        on(declRefExpr(
+                            to(decl(equalsBoundNode("string_var_decl"))))))));
+  };
 
-  const auto FindOrRFindExpr =
-      cxxMemberCallExpr(anyOf(FindExpr, RFindExpr)).bind("find_expr");
+  // Match either one of the two cases above.
+  const auto HasStringAndLengthArgs =
+      [HasStringLiteralAndLengthArgs, HasStringVariableAndSizeCallArgs](
+          const auto StringArgIndex, const auto LengthArgIndex) {
+        return anyOf(
+            HasStringLiteralAndLengthArgs(StringArgIndex, LengthArgIndex),
+            HasStringVariableAndSizeCallArgs(StringArgIndex, LengthArgIndex));
+      };
+
+  const auto CompareExpr = cxxMemberCallExpr(
+      // A method call with three arguments...
+      argumentCountIs(3),
+      // ... where the first argument is zero...
+      hasArgument(0, ZeroLiteral),
+      // ... named compare...
+      callee(cxxMethodDecl(hasName("compare")).bind("find_fun")),
+      // ... on a class with a starts_with function...
+      on(hasType(
+          hasCanonicalType(hasDeclaration(ClassWithStartsWithFunction)))),
+      // ... where the third argument is some string and the second a length.
+      HasStringAndLengthArgs(2, 1),
+      // Bind search expression.
+      hasArgument(2, expr().bind("search_expr")));
 
   Finder->addMatcher(
-      // Match [=!]= with a zero on one side and a string.(r?)find on the other.
-      binaryOperator(hasAnyOperatorName("==", "!="),
-                     hasOperands(FindOrRFindExpr, ZeroLiteral))
+      // Match [=!]= with a zero on one side and (r?)find|compare on the other.
+      binaryOperator(
+          hasAnyOperatorName("==", "!="),
+          hasOperands(cxxMemberCallExpr(anyOf(FindExpr, RFindExpr, CompareExpr))
+                          .bind("find_expr"),
+                      ZeroLiteral))
           .bind("expr"),
       this);
 }
@@ -69,23 +124,42 @@ void UseStartsEndsWithCheck::check(const MatchFinder::MatchResult &Result) {
   const auto *ComparisonExpr = Result.Nodes.getNodeAs<BinaryOperator>("expr");
   const auto *FindExpr = Result.Nodes.getNodeAs<CXXMemberCallExpr>("find_expr");
   const auto *FindFun = Result.Nodes.getNodeAs<CXXMethodDecl>("find_fun");
+  const auto *SearchExpr = Result.Nodes.getNodeAs<Expr>("search_expr");
   const auto *StartsWithFunction =
       Result.Nodes.getNodeAs<CXXMethodDecl>("starts_with_fun");
 
+  const auto *StringLiteralArg =
+      Result.Nodes.getNodeAs<StringLiteral>("string_literal_arg");
+  const auto *IntegerLiteralSizeArg =
+      Result.Nodes.getNodeAs<IntegerLiteral>("integer_literal_size_arg");
+  const auto *StrlenArg = Result.Nodes.getNodeAs<StringLiteral>("strlen_arg");
+
+  // Filter out compare cases where the length does not match string literal.
+  if (StringLiteralArg && IntegerLiteralSizeArg &&
+      StringLiteralArg->getLength() !=
+          IntegerLiteralSizeArg->getValue().getZExtValue()) {
+    return;
+  }
+
+  if (StringLiteralArg && StrlenArg &&
+      StringLiteralArg->getLength() != StrlenArg->getLength()) {
+    return;
+  }
+
   if (ComparisonExpr->getBeginLoc().isMacroID()) {
     return;
   }
 
   const bool Neg = ComparisonExpr->getOpcode() == BO_NE;
 
   auto Diagnostic =
-      diag(FindExpr->getBeginLoc(), "use %0 instead of %1() %select{==|!=}2 0")
+      diag(FindExpr->getExprLoc(), "use %0 instead of %1() %select{==|!=}2 0")
       << StartsWithFunction->getName() << FindFun->getName() << Neg;
 
-  // Remove possible zero second argument and ' [!=]= 0' suffix.
+  // Remove possible arguments after search expression and ' [!=]= 0' suffix.
   Diagnostic << FixItHint::CreateReplacement(
       CharSourceRange::getTokenRange(
-          Lexer::getLocForEndOfToken(FindExpr->getArg(0)->getEndLoc(), 0,
+          Lexer::getLocForEndOfToken(SearchExpr->getEndLoc(), 0,
                                      *Result.SourceManager, getLangOpts()),
           ComparisonExpr->getEndLoc()),
       ")");
@@ -94,11 +168,12 @@ void UseStartsEndsWithCheck::check(const MatchFinder::MatchResult &Result) {
   Diagnostic << FixItHint::CreateRemoval(CharSourceRange::getCharRange(
       ComparisonExpr->getBeginLoc(), FindExpr->getBeginLoc()));
 
-  // Replace '(r?)find' with 'starts_with'.
+  // Replace method name by 'starts_with'.
+  // Remove possible arguments before search expression.
   Diagnostic << FixItHint::CreateReplacement(
-      CharSourceRange::getTokenRange(FindExpr->getExprLoc(),
-                                     FindExpr->getExprLoc()),
-      StartsWithFunction->getName());
+      CharSourceRange::getCharRange(FindExpr->getExprLoc(),
+                                    SearchExpr->getBeginLoc()),
+      (StartsWithFunction->getName() + "(").str());
 
   // Add possible negation '!'.
   if (Neg) {

diff --git a/clang-tools-extra/clang-tidy/modernize/UseStartsEndsWithCheck.h b/clang-tools-extra/clang-tidy/modernize/UseStartsEndsWithCheck.h
@@ -13,9 +13,10 @@
 
 namespace clang::tidy::modernize {
 
-/// Checks whether a ``find`` or ``rfind`` result is compared with 0 and
-/// suggests replacing with ``starts_with`` when the method exists in the class.
-/// Notably, this will work with ``std::string`` and ``std::string_view``.
+/// Checks for common roundabout ways to express ``starts_with`` and
+/// ``ends_with`` and suggests replacing with ``starts_with`` when the method is
+/// available. Notably, this will work with ``std::string`` and
+/// ``std::string_view``.
 ///
 /// For the user-facing documentation see:
 /// http://clang.llvm.org/extra/clang-tidy/checks/modernize/use-starts-ends-with.html

diff --git a/clang-tools-extra/clang-tidy/readability/CMakeLists.txt b/clang-tools-extra/clang-tidy/readability/CMakeLists.txt
@@ -28,6 +28,7 @@ add_clang_library(clangTidyReadabilityModule
   IsolateDeclarationCheck.cpp
   MagicNumbersCheck.cpp
   MakeMemberFunctionConstCheck.cpp
+  MathMissingParenthesesCheck.cpp
   MisleadingIndentationCheck.cpp
   MisplacedArrayIndexCheck.cpp
   NamedParameterCheck.cpp

diff --git a/clang-tools-extra/clang-tidy/readability/MathMissingParenthesesCheck.cpp b/clang-tools-extra/clang-tidy/readability/MathMissingParenthesesCheck.cpp
@@ -0,0 +1,97 @@
+//===--- MathMissingParenthesesCheck.cpp - clang-tidy ---------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "MathMissingParenthesesCheck.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/Lex/Lexer.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang::tidy::readability {
+
+void MathMissingParenthesesCheck::registerMatchers(MatchFinder *Finder) {
+  Finder->addMatcher(binaryOperator(unless(hasParent(binaryOperator())),
+                                    unless(isAssignmentOperator()),
+                                    unless(isComparisonOperator()),
+                                    unless(hasAnyOperatorName("&&", "||")),
+                                    hasDescendant(binaryOperator()))
+                         .bind("binOp"),
+                     this);
+}
+
+static int getPrecedence(const BinaryOperator *BinOp) {
+  if (!BinOp)
+    return 0;
+  switch (BinOp->getOpcode()) {
+  case BO_Mul:
+  case BO_Div:
+  case BO_Rem:
+    return 5;
+  case BO_Add:
+  case BO_Sub:
+    return 4;
+  case BO_And:
+    return 3;
+  case BO_Xor:
+    return 2;
+  case BO_Or:
+    return 1;
+  default:
+    return 0;
+  }
+}
+static void addParantheses(const BinaryOperator *BinOp,
+                           const BinaryOperator *ParentBinOp,
+                           ClangTidyCheck *Check,
+                           const clang::SourceManager &SM,
+                           const clang::LangOptions &LangOpts) {
+  if (!BinOp)
+    return;
+
+  int Precedence1 = getPrecedence(BinOp);
+  int Precedence2 = getPrecedence(ParentBinOp);
+
+  if (ParentBinOp != nullptr && Precedence1 != Precedence2) {
+    const clang::SourceLocation StartLoc = BinOp->getBeginLoc();
+    const clang::SourceLocation EndLoc =
+        clang::Lexer::getLocForEndOfToken(BinOp->getEndLoc(), 0, SM, LangOpts);
+    if (EndLoc.isInvalid())
+      return;
+
+    Check->diag(StartLoc,
+                "'%0' has higher precedence than '%1'; add parentheses to "
+                "explicitly specify the order of operations")
+        << (Precedence1 > Precedence2 ? BinOp->getOpcodeStr()
+                                      : ParentBinOp->getOpcodeStr())
+        << (Precedence1 > Precedence2 ? ParentBinOp->getOpcodeStr()
+                                      : BinOp->getOpcodeStr())
+        << FixItHint::CreateInsertion(StartLoc, "(")
+        << FixItHint::CreateInsertion(EndLoc, ")")
+        << SourceRange(StartLoc, EndLoc);
+  }
+
+  addParantheses(dyn_cast<BinaryOperator>(BinOp->getLHS()->IgnoreImpCasts()),
+                 BinOp, Check, SM, LangOpts);
+  addParantheses(dyn_cast<BinaryOperator>(BinOp->getRHS()->IgnoreImpCasts()),
+                 BinOp, Check, SM, LangOpts);
+}
+
+void MathMissingParenthesesCheck::check(
+    const MatchFinder::MatchResult &Result) {
+  const auto *BinOp = Result.Nodes.getNodeAs<BinaryOperator>("binOp");
+  std::vector<
+      std::pair<clang::SourceRange, std::pair<const clang::BinaryOperator *,
+                                              const clang::BinaryOperator *>>>
+      Insertions;
+  const SourceManager &SM = *Result.SourceManager;
+  const clang::LangOptions &LO = Result.Context->getLangOpts();
+  addParantheses(BinOp, nullptr, this, SM, LO);
+}
+
+} // namespace clang::tidy::readability
diff --git a/clang-tools-extra/clang-tidy/readability/MathMissingParenthesesCheck.h b/clang-tools-extra/clang-tidy/readability/MathMissingParenthesesCheck.h
@@ -0,0 +1,34 @@
+//===--- MathMissingParenthesesCheck.h - clang-tidy -------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_MATHMISSINGPARENTHESESCHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_MATHMISSINGPARENTHESESCHECK_H
+
+#include "../ClangTidyCheck.h"
+
+namespace clang::tidy::readability {
+
+/// Check for mising parantheses in mathematical expressions that involve
+/// operators of different priorities.
+///
+/// For the user-facing documentation see:
+/// http://clang.llvm.org/extra/clang-tidy/checks/readability/math-missing-parentheses.html
+class MathMissingParenthesesCheck : public ClangTidyCheck {
+public:
+  MathMissingParenthesesCheck(StringRef Name, ClangTidyContext *Context)
+      : ClangTidyCheck(Name, Context) {}
+  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+  std::optional<TraversalKind> getCheckTraversalKind() const override {
+    return TK_IgnoreUnlessSpelledInSource;
+  }
+};
+
+} // namespace clang::tidy::readability
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_MATHMISSINGPARENTHESESCHECK_H
diff --git a/clang-tools-extra/clang-tidy/readability/ReadabilityTidyModule.cpp b/clang-tools-extra/clang-tidy/readability/ReadabilityTidyModule.cpp
@@ -32,6 +32,7 @@
 #include "IsolateDeclarationCheck.h"
 #include "MagicNumbersCheck.h"
 #include "MakeMemberFunctionConstCheck.h"
+#include "MathMissingParenthesesCheck.h"
 #include "MisleadingIndentationCheck.h"
 #include "MisplacedArrayIndexCheck.h"
 #include "NamedParameterCheck.h"
@@ -105,6 +106,8 @@ class ReadabilityModule : public ClangTidyModule {
         "readability-identifier-naming");
     CheckFactories.registerCheck<ImplicitBoolConversionCheck>(
         "readability-implicit-bool-conversion");
+    CheckFactories.registerCheck<MathMissingParenthesesCheck>(
+        "readability-math-missing-parentheses");
     CheckFactories.registerCheck<RedundantInlineSpecifierCheck>(
         "readability-redundant-inline-specifier");
     CheckFactories.registerCheck<InconsistentDeclarationParameterNameCheck>(

diff --git a/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp b/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp
@@ -454,52 +454,27 @@ static constexpr StringLiteral VerifyConfigWarningEnd = " [-verify-config]\n";
 
 static bool verifyChecks(const StringSet<> &AllChecks, StringRef CheckGlob,
                          StringRef Source) {
-  llvm::StringRef Cur, Rest;
+  GlobList Globs(CheckGlob);
   bool AnyInvalid = false;
-  for (std::tie(Cur, Rest) = CheckGlob.split(',');
-       !(Cur.empty() && Rest.empty()); std::tie(Cur, Rest) = Rest.split(',')) {
-    Cur = Cur.trim();
-    if (Cur.empty())
+  for (const auto &Item : Globs.getItems()) {
+    if (Item.Text.starts_with("clang-diagnostic"))
       continue;
-    Cur.consume_front("-");
-    if (Cur.starts_with("clang-diagnostic"))
-      continue;
-    if (Cur.contains('*')) {
-      SmallString<128> RegexText("^");
-      StringRef MetaChars("()^$|*+?.[]\\{}");
-      for (char C : Cur) {
-        if (C == '*')
-          RegexText.push_back('.');
-        else if (MetaChars.contains(C))
-          RegexText.push_back('\\');
-        RegexText.push_back(C);
-      }
-      RegexText.push_back('$');
-      llvm::Regex Glob(RegexText);
-      std::string Error;
-      if (!Glob.isValid(Error)) {
-        AnyInvalid = true;
-        llvm::WithColor::error(llvm::errs(), Source)
-            << "building check glob '" << Cur << "' " << Error << "'\n";
-        continue;
-      }
-      if (llvm::none_of(AllChecks.keys(),
-                        [&Glob](StringRef S) { return Glob.match(S); })) {
-        AnyInvalid = true;
+    if (llvm::none_of(AllChecks.keys(),
+                      [&Item](StringRef S) { return Item.Regex.match(S); })) {
+      AnyInvalid = true;
+      if (Item.Text.contains('*'))
         llvm::WithColor::warning(llvm::errs(), Source)
-            << "check glob '" << Cur << "' doesn't match any known check"
+            << "check glob '" << Item.Text << "' doesn't match any known check"
             << VerifyConfigWarningEnd;
+      else {
+        llvm::raw_ostream &Output =
+            llvm::WithColor::warning(llvm::errs(), Source)
+            << "unknown check '" << Item.Text << '\'';
+        llvm::StringRef Closest = closest(Item.Text, AllChecks);
+        if (!Closest.empty())
+          Output << "; did you mean '" << Closest << '\'';
+        Output << VerifyConfigWarningEnd;
       }
-    } else {
-      if (AllChecks.contains(Cur))
-        continue;
-      AnyInvalid = true;
-      llvm::raw_ostream &Output = llvm::WithColor::warning(llvm::errs(), Source)
-                                  << "unknown check '" << Cur << '\'';
-      llvm::StringRef Closest = closest(Cur, AllChecks);
-      if (!Closest.empty())
-        Output << "; did you mean '" << Closest << '\'';
-      Output << VerifyConfigWarningEnd;
     }
   }
   return AnyInvalid;

diff --git a/clang-tools-extra/clangd/CodeCompletionStrings.cpp b/clang-tools-extra/clangd/CodeCompletionStrings.cpp
@@ -253,7 +253,7 @@ void getSignature(const CodeCompletionString &CCS, std::string *Signature,
       if (!IncludeFunctionArguments &&
           ResultKind == CodeCompletionResult::RK_Declaration)
         TruncateSnippetAt.emplace(Snippet->size());
-      LLVM_FALLTHROUGH;
+      [[fallthrough]];
     case CodeCompletionString::CK_RightParen:
     case CodeCompletionString::CK_LeftBracket:
     case CodeCompletionString::CK_RightBracket:

diff --git a/clang-tools-extra/clangd/unittests/CMakeLists.txt b/clang-tools-extra/clangd/unittests/CMakeLists.txt
@@ -2,6 +2,7 @@ set(LLVM_LINK_COMPONENTS
   support
   AllTargetsInfos
   FrontendOpenMP
+  TargetParser
   )
 
 if(CLANG_BUILT_STANDALONE)

diff --git a/clang-tools-extra/clangd/unittests/FindTargetTests.cpp b/clang-tools-extra/clangd/unittests/FindTargetTests.cpp
@@ -427,7 +427,7 @@ TEST_F(TargetDeclTest, Types) {
     [[auto]] X = S{};
   )cpp";
   // FIXME: deduced type missing in AST. https://llvm.org/PR42914
-  EXPECT_DECLS("AutoTypeLoc");
+  EXPECT_DECLS("AutoTypeLoc", );
 
   Code = R"cpp(
     template <typename... E>
@@ -727,13 +727,13 @@ TEST_F(TargetDeclTest, BuiltinTemplates) {
     template <class T, int N>
     using make_integer_sequence = [[__make_integer_seq]]<integer_sequence, T, N>;
   )cpp";
-  EXPECT_DECLS("TemplateSpecializationTypeLoc");
+  EXPECT_DECLS("TemplateSpecializationTypeLoc", );
 
   Code = R"cpp(
     template <int N, class... Pack>
     using type_pack_element = [[__type_pack_element]]<N, Pack...>;
   )cpp";
-  EXPECT_DECLS("TemplateSpecializationTypeLoc");
+  EXPECT_DECLS("TemplateSpecializationTypeLoc", );
 }
 
 TEST_F(TargetDeclTest, MemberOfTemplate) {
@@ -839,7 +839,9 @@ TEST_F(TargetDeclTest, OverloadExpr) {
       [[delete]] x;
     }
   )cpp";
-  EXPECT_DECLS("CXXDeleteExpr", "void operator delete(void *) noexcept");
+  // Sized deallocation is enabled by default in C++14 onwards.
+  EXPECT_DECLS("CXXDeleteExpr",
+               "void operator delete(void *, unsigned long) noexcept");
 }
 
 TEST_F(TargetDeclTest, DependentExprs) {
@@ -1018,7 +1020,7 @@ TEST_F(TargetDeclTest, DependentTypes) {
           typedef typename waldo<N - 1>::type::[[next]] type;
         };
   )cpp";
-  EXPECT_DECLS("DependentNameTypeLoc");
+  EXPECT_DECLS("DependentNameTypeLoc", );
 
   // Similar to above but using mutually recursive templates.
   Code = R"cpp(
@@ -1035,7 +1037,7 @@ TEST_F(TargetDeclTest, DependentTypes) {
           using type = typename even<N - 1>::type::[[next]];
         };
   )cpp";
-  EXPECT_DECLS("DependentNameTypeLoc");
+  EXPECT_DECLS("DependentNameTypeLoc", );
 }
 
 TEST_F(TargetDeclTest, TypedefCascade) {
@@ -1263,14 +1265,14 @@ TEST_F(TargetDeclTest, ObjC) {
     + ([[id]])sharedInstance;
     @end
   )cpp";
-  EXPECT_DECLS("TypedefTypeLoc");
+  EXPECT_DECLS("TypedefTypeLoc", );
 
   Code = R"cpp(
     @interface Foo
     + ([[instancetype]])sharedInstance;
     @end
   )cpp";
-  EXPECT_DECLS("TypedefTypeLoc");
+  EXPECT_DECLS("TypedefTypeLoc", );
 }
 
 class FindExplicitReferencesTest : public ::testing::Test {

diff --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst
@@ -102,6 +102,11 @@ Improvements to clang-tidy
   similar fashion to what `-header-filter` does for header files.
 - Improved :program:`check_clang_tidy.py` script. Added argument `-export-fixes`
   to aid in clang-tidy and test development.
+- Fixed bug where big values for unsigned check options overflowed into negative values
+  when being printed with ``--dump-config``.
+
+- Fixed ``--verify-config`` option not properly parsing checks when using the 
+  literal operator in the ``.clang-tidy`` config.
 
 New checks
 ^^^^^^^^^^
@@ -112,13 +117,26 @@ New checks
   Detects error-prone Curiously Recurring Template Pattern usage, when the CRTP
   can be constructed outside itself and the derived class.
 
+- New :doc:`bugprone-return-const-ref-from-parameter
+  <clang-tidy/checks/bugprone/return-const-ref-from-parameter>` check.
+
+  Detects return statements that return a constant reference parameter as constant
+  reference. This may cause use-after-free errors if the caller uses xvalues as
+  arguments.
+
 - New :doc:`bugprone-suspicious-stringview-data-usage
   <clang-tidy/checks/bugprone/suspicious-stringview-data-usage>` check.
 
   Identifies suspicious usages of ``std::string_view::data()`` that could lead
   to reading out-of-bounds data due to inadequate or incorrect string null
   termination.
 
+- New :doc:`modernize-min-max-use-initializer-list
+  <clang-tidy/checks/modernize/min-max-use-initializer-list>` check.
+
+  Replaces nested ``std::min`` and ``std::max`` calls with an initializer list
+  where applicable.
+
 - New :doc:`modernize-use-designated-initializers
   <clang-tidy/checks/modernize/use-designated-initializers>` check.
 
@@ -131,6 +149,12 @@ New checks
   Enforces consistent style for enumerators' initialization, covering three
   styles: none, first only, or all initialized explicitly.
 
+- New :doc:`readability-math-missing-parentheses
+  <clang-tidy/checks/readability/math-missing-parentheses>` check.
+
+  Check for missing parentheses in mathematical expressions that involve
+  operators of different priorities.
+
 - New :doc:`readability-use-std-min-max
   <clang-tidy/checks/readability/use-std-min-max>` check.
 
@@ -155,6 +179,10 @@ Changes in existing checks
   <clang-tidy/checks/bugprone/inc-dec-in-conditions>` check to ignore code
   within unevaluated contexts, such as ``decltype``.
 
+- Improved :doc:`bugprone-lambda-function-name<clang-tidy/checks/bugprone/lambda-function-name>`
+  check by ignoring ``__func__`` macro in lambda captures, initializers of
+  default parameters and nested function declarations.
+
 - Improved :doc:`bugprone-non-zero-enum-to-bool-conversion
   <clang-tidy/checks/bugprone/non-zero-enum-to-bool-conversion>` check by
   eliminating false positives resulting from direct usage of bitwise operators
@@ -257,6 +285,10 @@ Changes in existing checks
   <clang-tidy/checks/modernize/use-override>` check to also remove any trailing
   whitespace when deleting the ``virtual`` keyword.
 
+- Improved :doc:`modernize-use-starts-ends-with
+  <clang-tidy/checks/modernize/use-starts-ends-with>` check to also handle
+  calls to ``compare`` method.
+
 - Improved :doc:`modernize-use-using <clang-tidy/checks/modernize/use-using>`
   check by adding support for detection of typedefs declared on function level.
 

diff --git a/...tools-extra/docs/clang-tidy/checks/bugprone/return-const-ref-from-parameter.rst b/...tools-extra/docs/clang-tidy/checks/bugprone/return-const-ref-from-parameter.rst
@@ -0,0 +1,31 @@
+.. title:: clang-tidy - bugprone-return-const-ref-from-parameter
+
+bugprone-return-const-ref-from-parameter
+========================================
+
+Detects return statements that return a constant reference parameter as constant
+reference. This may cause use-after-free errors if the caller uses xvalues as
+arguments.
+
+In C++, constant reference parameters can accept xvalues which will be destructed
+after the call. When the function returns such a parameter also as constant reference,
+then the returned reference can be used after the object it refers to has been
+destroyed.
+
+Example
+-------
+
+.. code-block:: c++
+
+  struct S {
+    int v;
+    S(int);
+    ~S();
+  };
+
+  const S &fn(const S &a) {
+    return a;
+  }
+
+  const S& s = fn(S{1});
+  s.v; // use after free
diff --git a/clang-tools-extra/docs/clang-tidy/checks/cert/env33-c.rst b/clang-tools-extra/docs/clang-tidy/checks/cert/env33-c.rst
@@ -10,4 +10,4 @@ but does not actually attempt to execute a command.
 
 This check corresponds to the CERT C Coding Standard rule
 `ENV33-C. Do not call system()
-<https://www.securecoding.cert.org/confluence/pages/viewpage.action?pageId=2130132>`_.
+<https://www.securecoding.cert.org/confluence/display/c/ENV33-C.+Do+not+call+system()>`_.
diff --git a/clang-tools-extra/docs/clang-tidy/checks/list.rst b/clang-tools-extra/docs/clang-tidy/checks/list.rst
@@ -120,6 +120,7 @@ Clang-Tidy Checks
    :doc:`bugprone-posix-return <bugprone/posix-return>`, "Yes"
    :doc:`bugprone-redundant-branch-condition <bugprone/redundant-branch-condition>`, "Yes"
    :doc:`bugprone-reserved-identifier <bugprone/reserved-identifier>`, "Yes"
+   :doc:`bugprone-return-const-ref-from-parameter <bugprone/return-const-ref-from-parameter>`
    :doc:`bugprone-shared-ptr-array-mismatch <bugprone/shared-ptr-array-mismatch>`, "Yes"
    :doc:`bugprone-signal-handler <bugprone/signal-handler>`,
    :doc:`bugprone-signed-char-misuse <bugprone/signed-char-misuse>`,
@@ -275,6 +276,7 @@ Clang-Tidy Checks
    :doc:`modernize-macro-to-enum <modernize/macro-to-enum>`, "Yes"
    :doc:`modernize-make-shared <modernize/make-shared>`, "Yes"
    :doc:`modernize-make-unique <modernize/make-unique>`, "Yes"
+   :doc:`modernize-min-max-use-initializer-list <modernize/min-max-use-initializer-list>`, "Yes"
    :doc:`modernize-pass-by-value <modernize/pass-by-value>`, "Yes"
    :doc:`modernize-raw-string-literal <modernize/raw-string-literal>`, "Yes"
    :doc:`modernize-redundant-void-arg <modernize/redundant-void-arg>`, "Yes"
@@ -341,9 +343,9 @@ Clang-Tidy Checks
    :doc:`portability-std-allocator-const <portability/std-allocator-const>`,
    :doc:`readability-avoid-const-params-in-decls <readability/avoid-const-params-in-decls>`, "Yes"
    :doc:`readability-avoid-nested-conditional-operator <readability/avoid-nested-conditional-operator>`,
-   :doc:`readability-avoid-return-with-void-value <readability/avoid-return-with-void-value>`,
+   :doc:`readability-avoid-return-with-void-value <readability/avoid-return-with-void-value>`, "Yes"
    :doc:`readability-avoid-unconditional-preprocessor-if <readability/avoid-unconditional-preprocessor-if>`,
-   :doc:`readability-braces-around-statements <readability/braces-around-statements>`, "Yes"
+   :doc:`readability-braces-around-statements <readability/braces-around-statements>`,
    :doc:`readability-const-return-type <readability/const-return-type>`, "Yes"
    :doc:`readability-container-contains <readability/container-contains>`, "Yes"
    :doc:`readability-container-data-pointer <readability/container-data-pointer>`, "Yes"
@@ -362,6 +364,7 @@ Clang-Tidy Checks
    :doc:`readability-isolate-declaration <readability/isolate-declaration>`, "Yes"
    :doc:`readability-magic-numbers <readability/magic-numbers>`,
    :doc:`readability-make-member-function-const <readability/make-member-function-const>`, "Yes"
+   :doc:`readability-math-missing-parentheses <readability/math-missing-parentheses>`, "Yes"
    :doc:`readability-misleading-indentation <readability/misleading-indentation>`,
    :doc:`readability-misplaced-array-index <readability/misplaced-array-index>`, "Yes"
    :doc:`readability-named-parameter <readability/named-parameter>`, "Yes"
@@ -529,12 +532,12 @@ Clang-Tidy Checks
    :doc:`cppcoreguidelines-non-private-member-variables-in-classes <cppcoreguidelines/non-private-member-variables-in-classes>`, :doc:`misc-non-private-member-variables-in-classes <misc/non-private-member-variables-in-classes>`,
    :doc:`cppcoreguidelines-use-default-member-init <cppcoreguidelines/use-default-member-init>`, :doc:`modernize-use-default-member-init <modernize/use-default-member-init>`, "Yes"
    :doc:`fuchsia-header-anon-namespaces <fuchsia/header-anon-namespaces>`, :doc:`google-build-namespaces <google/build-namespaces>`,
-   :doc:`google-readability-braces-around-statements <google/readability-braces-around-statements>`, :doc:`readability-braces-around-statements <readability/braces-around-statements>`, "Yes"
+   :doc:`google-readability-braces-around-statements <google/readability-braces-around-statements>`, :doc:`readability-braces-around-statements <readability/braces-around-statements>`,
    :doc:`google-readability-function-size <google/readability-function-size>`, :doc:`readability-function-size <readability/function-size>`,
    :doc:`google-readability-namespace-comments <google/readability-namespace-comments>`, :doc:`llvm-namespace-comment <llvm/namespace-comment>`,
    :doc:`hicpp-avoid-c-arrays <hicpp/avoid-c-arrays>`, :doc:`modernize-avoid-c-arrays <modernize/avoid-c-arrays>`,
    :doc:`hicpp-avoid-goto <hicpp/avoid-goto>`, :doc:`cppcoreguidelines-avoid-goto <cppcoreguidelines/avoid-goto>`,
-   :doc:`hicpp-braces-around-statements <hicpp/braces-around-statements>`, :doc:`readability-braces-around-statements <readability/braces-around-statements>`, "Yes"
+   :doc:`hicpp-braces-around-statements <hicpp/braces-around-statements>`, :doc:`readability-braces-around-statements <readability/braces-around-statements>`,
    :doc:`hicpp-deprecated-headers <hicpp/deprecated-headers>`, :doc:`modernize-deprecated-headers <modernize/deprecated-headers>`, "Yes"
    :doc:`hicpp-explicit-conversions <hicpp/explicit-conversions>`, :doc:`google-explicit-constructor <google/explicit-constructor>`, "Yes"
    :doc:`hicpp-function-size <hicpp/function-size>`, :doc:`readability-function-size <readability/function-size>`,

diff --git a/...g-tools-extra/docs/clang-tidy/checks/modernize/min-max-use-initializer-list.rst b/...g-tools-extra/docs/clang-tidy/checks/modernize/min-max-use-initializer-list.rst
@@ -0,0 +1,50 @@
+.. title:: clang-tidy - modernize-min-max-use-initializer-list
+
+modernize-min-max-use-initializer-list
+======================================
+
+Replaces nested ``std::min`` and ``std::max`` calls with an initializer list 
+where applicable.
+
+For instance, consider the following code:
+
+.. code-block:: cpp
+
+  int a = std::max(std::max(i, j), k);
+
+The check will transform the above code to:
+
+.. code-block:: cpp
+
+  int a = std::max({i, j, k});
+
+Performance Considerations
+==========================
+
+While this check simplifies the code and makes it more readable, it may cause 
+performance degradation for non-trivial types due to the need to copy objects 
+into the initializer list.
+
+To avoid this, it is recommended to use `std::ref` or `std::cref` for
+non-trivial types:
+
+.. code-block:: cpp
+
+  std::string b = std::max({std::ref(i), std::ref(j), std::ref(k)});
+
+Options
+=======
+
+.. option:: IncludeStyle
+
+  A string specifying which include-style is used, `llvm` or `google`. Default
+  is `llvm`.
+
+.. option:: IgnoreNonTrivialTypes
+
+  A boolean specifying whether to ignore non-trivial types. Default is `true`.
+
+.. option:: IgnoreTrivialTypesOfSizeAbove
+
+  An integer specifying the size (in bytes) above which trivial types are
+  ignored. Default is `32`.
diff --git a/clang-tools-extra/docs/clang-tidy/checks/modernize/use-starts-ends-with.rst b/clang-tools-extra/docs/clang-tidy/checks/modernize/use-starts-ends-with.rst
@@ -3,15 +3,16 @@
 modernize-use-starts-ends-with
 ==============================
 
-Checks whether a ``find`` or ``rfind`` result is compared with 0 and suggests
-replacing with ``starts_with`` when the method exists in the class. Notably,
-this will work with ``std::string`` and ``std::string_view``.
+Checks for common roundabout ways to express ``starts_with`` and ``ends_with``
+and suggests replacing with ``starts_with`` when the method is available.
+Notably, this will work with ``std::string`` and ``std::string_view``.
 
 .. code-block:: c++
 
   std::string s = "...";
   if (s.find("prefix") == 0) { /* do something */ }
   if (s.rfind("prefix", 0) == 0) { /* do something */ }
+  if (s.compare(0, strlen("prefix"), "prefix") == 0) { /* do something */ }
 
 becomes
 
@@ -20,3 +21,4 @@ becomes
   std::string s = "...";
   if (s.starts_with("prefix")) { /* do something */ }
   if (s.starts_with("prefix")) { /* do something */ }
+  if (s.starts_with("prefix")) { /* do something */ }
diff --git a/clang-tools-extra/docs/clang-tidy/checks/readability/math-missing-parentheses.rst b/clang-tools-extra/docs/clang-tidy/checks/readability/math-missing-parentheses.rst
@@ -0,0 +1,27 @@
+.. title:: clang-tidy - readability-math-missing-parentheses
+
+readability-math-missing-parentheses
+====================================
+
+Check for missing parentheses in mathematical expressions that involve operators
+of different priorities.
+
+Parentheses in mathematical expressions clarify the order
+of operations, especially with different-priority operators. Lengthy or multiline
+expressions can obscure this order, leading to coding errors. IDEs can aid clarity
+by highlighting parentheses. Explicitly using parentheses also clarifies what the 
+developer had in mind when writing the expression. Ensuring their presence reduces
+ambiguity and errors, promoting clearer and more maintainable code.
+
+Before:
+
+.. code-block:: c++
+
+  int x = 1 + 2 * 3 - 4 / 5;
+
+
+After:
+
+.. code-block:: c++
+
+  int x = 1 + (2 * 3) - (4 / 5);
diff --git a/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/string b/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/string
@@ -44,6 +44,8 @@ struct basic_string {
   int compare(const C* s) const;
   int compare(size_type pos, size_type len, const _Type&) const;
   int compare(size_type pos, size_type len, const C* s) const;
+  template<class StringViewLike>
+  int compare(size_type pos1, size_type count1, const StringViewLike& t) const;
 
   size_type find(const _Type& str, size_type pos = 0) const;
   size_type find(const C* s, size_type pos = 0) const;
@@ -129,6 +131,8 @@ bool operator!=(const char*, const std::string&);
 bool operator==(const std::wstring&, const std::wstring&);
 bool operator==(const std::wstring&, const wchar_t*);
 bool operator==(const wchar_t*, const std::wstring&);
+
+size_t strlen(const char* str);
 }
 
 #endif // _STRING_
diff --git a/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/string.h b/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/string.h
@@ -12,5 +12,6 @@
 #include "stddef.h"
 
 void *memcpy(void *dest, const void *src, size_t n);
+size_t strlen(const char* str);
 
 #endif // _STRING_H_
diff --git a/clang-tools-extra/test/clang-tidy/checkers/abseil/redundant-strcat-calls.cpp b/clang-tools-extra/test/clang-tidy/checkers/abseil/redundant-strcat-calls.cpp
@@ -1,8 +1,6 @@
 // RUN: %check_clang_tidy %s abseil-redundant-strcat-calls %t -- -- -isystem %clang_tidy_headers
 #include <string>
 
-int strlen(const char *);
-
 namespace absl {
 
 class string_view {

diff --git a/clang-tools-extra/test/clang-tidy/checkers/bugprone/lambda-function-name.cpp b/clang-tools-extra/test/clang-tidy/checkers/bugprone/lambda-function-name.cpp
@@ -19,6 +19,22 @@ void Positives() {
   // CHECK-MESSAGES-NO-CONFIG: :[[@LINE-1]]:8: warning: inside a lambda, '__FUNCTION__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
   [] { EMBED_IN_ANOTHER_MACRO1; }();
   // CHECK-MESSAGES-NO-CONFIG: :[[@LINE-1]]:8: warning: inside a lambda, '__func__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
+  [] {
+    __func__;
+  // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: inside a lambda, '__func__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
+    struct S {
+      void f() {
+        __func__;
+        [] {
+          __func__;
+  // CHECK-MESSAGES: :[[@LINE-1]]:11: warning: inside a lambda, '__func__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
+        }();
+        __func__;
+      }
+    };
+    __func__;
+  // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: inside a lambda, '__func__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
+  }();
 }
 
 #define FUNC_MACRO_WITH_FILE_AND_LINE Foo(__func__, __FILE__, __LINE__)
@@ -40,4 +56,7 @@ void Negatives() {
   [] { FUNC_MACRO_WITH_FILE_AND_LINE; }();
   [] { FUNCTION_MACRO_WITH_FILE_AND_LINE; }();
   [] { EMBED_IN_ANOTHER_MACRO2; }();
+
+  [] (const char* func = __func__) { func; }();
+  [func=__func__] { func; }();
 }
diff --git a/clang-tools-extra/test/clang-tidy/checkers/bugprone/return-const-ref-from-parameter.cpp b/clang-tools-extra/test/clang-tidy/checkers/bugprone/return-const-ref-from-parameter.cpp
@@ -0,0 +1,31 @@
+// RUN: %check_clang_tidy %s bugprone-return-const-ref-from-parameter %t
+
+using T = int;
+using TConst = int const;
+using TConstRef = int const&;
+
+namespace invalid {
+
+int const &f1(int const &a) { return a; }
+// CHECK-MESSAGES: :[[@LINE-1]]:38: warning: returning a constant reference parameter
+
+int const &f2(T const &a) { return a; }
+// CHECK-MESSAGES: :[[@LINE-1]]:36: warning: returning a constant reference parameter
+
+int const &f3(TConstRef a) { return a; }
+// CHECK-MESSAGES: :[[@LINE-1]]:37: warning: returning a constant reference parameter
+
+int const &f4(TConst &a) { return a; }
+// CHECK-MESSAGES: :[[@LINE-1]]:35: warning: returning a constant reference parameter
+
+} // namespace invalid
+
+namespace valid {
+
+int const &f1(int &a) { return a; }
+
+int const &f2(int &&a) { return a; }
+
+int f1(int const &a) { return a; }
+
+} // namespace valid
diff --git a/clang-tools-extra/test/clang-tidy/checkers/misc/new-delete-overloads.cpp b/clang-tools-extra/test/clang-tidy/checkers/misc/new-delete-overloads.cpp
@@ -12,16 +12,6 @@ struct S {
 // CHECK-MESSAGES: :[[@LINE+1]]:7: warning: declaration of 'operator new' has no matching declaration of 'operator delete' at the same scope
 void *operator new(size_t size) noexcept(false);
 
-struct T {
-  // Sized deallocations are not enabled by default, and so this new/delete pair
-  // does not match. However, we expect only one warning, for the new, because
-  // the operator delete is a placement delete and we do not warn on mismatching
-  // placement operations.
-  // CHECK-MESSAGES: :[[@LINE+1]]:9: warning: declaration of 'operator new' has no matching declaration of 'operator delete' at the same scope
-  void *operator new(size_t size) noexcept;
-  void operator delete(void *ptr, size_t) noexcept; // ok only if sized deallocation is enabled
-};
-
 struct U {
   void *operator new(size_t size) noexcept;
   void operator delete(void *ptr) noexcept;

diff --git a/clang-tools-extra/test/clang-tidy/checkers/modernize/min-max-use-initializer-list.cpp b/clang-tools-extra/test/clang-tidy/checkers/modernize/min-max-use-initializer-list.cpp
@@ -0,0 +1,305 @@
+// RUN: %check_clang_tidy %s modernize-min-max-use-initializer-list %t
+
+// CHECK-FIXES: #include <algorithm>
+namespace utils {
+template <typename T>
+T max(T a, T b) {
+  return (a < b) ? b : a;
+}
+} // namespace utils
+
+namespace std {
+template< class T >
+struct initializer_list {
+  initializer_list()=default;
+  initializer_list(T*,int){}
+  const T* begin() const {return nullptr;}
+  const T* end() const {return nullptr;}
+};
+
+template<class ForwardIt>
+ForwardIt min_element(ForwardIt first, ForwardIt last)
+{
+    if (first == last)
+        return last;
+
+    ForwardIt smallest = first;
+
+    while (++first != last)
+        if (*first < *smallest)
+            smallest = first;
+
+    return smallest;
+}
+
+template<class ForwardIt, class Compare>
+ForwardIt min_element(ForwardIt first, ForwardIt last, Compare comp)
+{
+    if (first == last)
+        return last;
+
+    ForwardIt smallest = first;
+
+    while (++first != last)
+        if (comp(*first, *smallest))
+            smallest = first;
+
+    return smallest;
+}
+
+template<class ForwardIt>
+ForwardIt max_element(ForwardIt first, ForwardIt last)
+{
+    if (first == last)
+        return last;
+
+    ForwardIt largest = first;
+
+    while (++first != last)
+        if (*largest < *first)
+            largest = first;
+
+    return largest;
+}
+
+template<class ForwardIt, class Compare>
+ForwardIt max_element(ForwardIt first, ForwardIt last, Compare comp)
+{
+    if (first == last)
+        return last;
+
+    ForwardIt largest = first;
+
+    while(++first != last)
+        if (comp(*largest, *first))
+            largest = first;
+
+    return largest;
+}
+
+template< class T >
+const T& max( const T& a, const T& b ) {
+  return (a < b) ? b : a;
+};
+
+template< class T >
+T max(std::initializer_list<T> ilist)
+{
+    return *std::max_element(ilist.begin(), ilist.end());
+}
+
+template< class T, class Compare >
+const T& max( const T& a, const T& b, Compare comp ) {
+  return (comp(a, b)) ? b : a;
+};
+
+template< class T, class Compare >
+T max(std::initializer_list<T> ilist, Compare comp) {
+    return *std::max_element(ilist.begin(), ilist.end(), comp);
+};
+
+template< class T >
+const T& min( const T& a, const T& b ) {
+  return (b < a) ? b : a;
+};
+
+template< class T >
+T min(std::initializer_list<T> ilist)
+{
+    return *std::min_element(ilist.begin(), ilist.end());
+}
+
+
+template< class T, class Compare >
+const T& min( const T& a, const T& b, Compare comp ) {
+  return (comp(b, a)) ? b : a;
+};
+
+template< class T, class Compare >
+T min(std::initializer_list<T> ilist, Compare comp) {
+    return *std::min_element(ilist.begin(), ilist.end(), comp);
+};
+
+} // namespace std
+
+using namespace std;
+
+namespace {
+bool fless_than(int a, int b) {
+return a < b;
+}
+
+bool fgreater_than(int a, int b) {
+return a > b;
+}
+auto less_than = [](int a, int b) { return a < b; };
+auto greater_than = [](int a, int b) { return a > b; };
+
+int max1 = std::max(1, std::max(2, 3));
+// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int max1 = std::max({1, 2, 3});
+
+int min1 = std::min(1, std::min(2, 3));
+// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not use nested 'std::min' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int min1 = std::min({1, 2, 3});
+
+int max2 = std::max(1, std::max(2, std::max(3, 4)));
+// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int max2 = std::max({1, 2, 3, 4});
+
+int max2b = std::max(std::max(std::max(1, 2), std::max(3, 4)), std::max(std::max(5, 6), std::max(7, 8)));
+// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int max2b = std::max({1, 2, 3, 4, 5, 6, 7, 8});
+
+int max2c = std::max(std::max(1, std::max(2, 3)), 4);
+// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int max2c = std::max({1, 2, 3, 4});
+
+int max2d = std::max(std::max({1, 2, 3}), 4);
+// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int max2d = std::max({1, 2, 3, 4});
+
+
+int max2e = std::max(1, max(2, max(3, 4)));
+// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int max2e = std::max({1, 2, 3, 4});
+
+int min2 = std::min(1, std::min(2, std::min(3, 4)));
+// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not use nested 'std::min' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int min2 = std::min({1, 2, 3, 4});
+
+int max3 = std::max(std::max(4, 5), std::min(2, std::min(3, 1)));
+// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-MESSAGES: :[[@LINE-2]]:37: warning: do not use nested 'std::min' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int max3 = std::max({4, 5, std::min({2, 3, 1})});
+
+int min3 = std::min(std::min(4, 5), std::max(2, std::max(3, 1)));
+// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not use nested 'std::min' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-MESSAGES: :[[@LINE-2]]:37: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int min3 = std::min({4, 5, std::max({2, 3, 1})});
+
+int max4 = std::max(1, std::max(2, 3, greater_than), less_than);
+// CHECK-FIXES: int max4 = std::max(1, std::max(2, 3, greater_than), less_than);
+
+int min4 = std::min(1, std::min(2, 3, greater_than), less_than);
+// CHECK-FIXES: int min4 = std::min(1, std::min(2, 3, greater_than), less_than);
+
+int max5 = std::max(1, std::max(2, 3), less_than);
+// CHECK-FIXES: int max5 = std::max(1, std::max(2, 3), less_than);
+
+int min5 = std::min(1, std::min(2, 3), less_than);
+// CHECK-FIXES: int min5 = std::min(1, std::min(2, 3), less_than);
+
+int max6 = std::max(1, std::max(2, 3, greater_than), greater_than);
+// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int max6 = std::max({1, 2, 3 }, greater_than);
+
+int min6 = std::min(1, std::min(2, 3, greater_than), greater_than);
+// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not use nested 'std::min' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int min6 = std::min({1, 2, 3 }, greater_than);
+
+int max7 = std::max(1, std::max(2, 3, fless_than), fgreater_than);
+// CHECK-FIXES: int max7 = std::max(1, std::max(2, 3, fless_than), fgreater_than);
+
+int min7 = std::min(1, std::min(2, 3, fless_than), fgreater_than);
+// CHECK-FIXES: int min7 = std::min(1, std::min(2, 3, fless_than), fgreater_than);
+
+int max8 = std::max(1, std::max(2, 3, fless_than), less_than);
+// CHECK-FIXES: int max8 = std::max(1, std::max(2, 3, fless_than), less_than)
+
+int min8 = std::min(1, std::min(2, 3, fless_than), less_than);
+// CHECK-FIXES: int min8 = std::min(1, std::min(2, 3, fless_than), less_than);
+
+int max9 = std::max(1, std::max(2, 3, fless_than), fless_than);
+// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int max9 = std::max({1, 2, 3 }, fless_than);
+
+int min9 = std::min(1, std::min(2, 3, fless_than), fless_than);
+// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not use nested 'std::min' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int min9 = std::min({1, 2, 3 }, fless_than);
+
+int min10 = std::min(std::min(4, 5), std::max(2, utils::max(3, 1)));
+// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use nested 'std::min' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int min10 = std::min({4, 5, std::max(2, utils::max(3, 1))});
+
+int max10 = std::max({std::max(1, 2), std::max({5, 6, 1}), 2, std::min({1, 2, 4})});
+// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int max10 = std::max({1, 2, 5, 6, 1, 2, std::min({1, 2, 4})});
+
+int typecastTest = std::max(std::max<int>(0U, 0.0f), 0);
+// CHECK-MESSAGES: :[[@LINE-1]]:20: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int typecastTest = std::max({static_cast<int>(0U), static_cast<int>(0.0f), 0});
+
+int typecastTest1 = std::max(std::max<long>(0U, 0.0f), 0L);
+// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int typecastTest1 = std::max({static_cast<long>(0U), static_cast<long>(0.0f), 0L});
+
+int typecastTest2 = std::max(std::max<int>(10U, 20.0f), 30);
+// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int typecastTest2 = std::max({static_cast<int>(10U), static_cast<int>(20.0f), 30});
+
+int typecastTest3 = std::max(std::max<int>(0U, std::max<int>(0.0f, 1.0f)), 0);
+// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int typecastTest3 = std::max({static_cast<int>(0U), static_cast<int>(0.0f), static_cast<int>(1.0f), 0});
+
+#define max3f(a, b, c) std::max(a, std::max(b, c))
+// CHECK-FIXES: #define max3f(a, b, c) std::max(a, std::max(b, c))
+
+#define value 4545
+int macroVarMax = std::max(value, std::max(1, 2));
+// CHECK-MESSAGES: :[[@LINE-1]]:19: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int macroVarMax = std::max({value, 1, 2});
+
+#define value2 45U
+int macroVarMax2 = std::max(1, std::max<int>(value2, 2.0f));
+// CHECK-MESSAGES: :[[@LINE-1]]:20: warning: do not use nested 'std::max' calls, use an initializer list instead [modernize-min-max-use-initializer-list]
+// CHECK-FIXES: int macroVarMax2 = std::max({1, static_cast<int>(value2), static_cast<int>(2.0f)});
+
+// True-negative tests
+int maxTN1 = std::max(1, 2);
+// CHECK-FIXES: int maxTN1 = std::max(1, 2);
+
+int maxTN2 = std::max({1, 2, 3});
+// CHECK-FIXES: int maxTN2 = std::max({1, 2, 3});
+
+int maxTN3 = std::max({1, 2, 3}, less_than);
+// CHECK-FIXES: int maxTN3 = std::max({1, 2, 3}, less_than);
+
+// non-trivial types
+struct A {
+  int a;
+  A(int a) : a(a) {}
+  bool operator<(const A &rhs) const { return a < rhs.a; }
+};
+
+A maxNT1 = std::max(A(1), A(2));
+// CHECK-FIXES: A maxNT1 = std::max(A(1), A(2));
+
+A maxNT2 = std::max(A(1), std::max(A(2), A(3)));
+// CHECK-FIXES: A maxNT2 = std::max(A(1), std::max(A(2), A(3)));
+
+A maxNT3 = std::max(A(1), std::max(A(2), A(3)), [](const A &lhs, const A &rhs) { return lhs.a < rhs.a; });
+// CHECK-FIXES: A maxNT3 = std::max(A(1), std::max(A(2), A(3)), [](const A &lhs, const A &rhs) { return lhs.a < rhs.a; });
+
+// Trivial type with size greater than 32
+struct B {
+  // 9*4 = 36 bytes > 32 bytes
+  int a[9];
+
+  bool operator<(const B& rhs) const {
+    return a[0] < rhs.a[0];
+  }
+};
+
+B maxTT1 = std::max(B(), B());
+// CHECK-FIXES: B maxTT1 = std::max(B(), B());
+
+B maxTT2 = std::max(B(), std::max(B(), B()));
+// CHECK-FIXES: B maxTT2 = std::max(B(), std::max(B(), B()));
+
+B maxTT3 = std::max(B(), std::max(B(), B()), [](const B &lhs, const B &rhs) { return lhs.a[0] < rhs.a[0]; });
+// CHECK-FIXES: B maxTT3 = std::max(B(), std::max(B(), B()), [](const B &lhs, const B &rhs) { return lhs.a[0] < rhs.a[0]; });
+
+
+} // namespace
+
diff --git a/clang-tools-extra/test/clang-tidy/checkers/modernize/use-starts-ends-with.cpp b/clang-tools-extra/test/clang-tidy/checkers/modernize/use-starts-ends-with.cpp
@@ -1,6 +1,7 @@
 // RUN: %check_clang_tidy -std=c++20 %s modernize-use-starts-ends-with %t -- \
 // RUN:   -- -isystem %clang_tidy_headers
 
+#include <string.h>
 #include <string>
 
 std::string foo(std::string);
@@ -158,10 +159,64 @@ void test(std::string s, std::string_view sv, sub_string ss, sub_sub_string sss,
   // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use startsWith
   // CHECK-FIXES: puvi.startsWith("a");
 
+  s.compare(0, 1, "a") == 0;
+  // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use starts_with instead of compare() == 0
+  // CHECK-FIXES: s.starts_with("a");
+
+  s.compare(0, 1, "a") != 0;
+  // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use starts_with instead of compare() != 0
+  // CHECK-FIXES: !s.starts_with("a");
+
+  s.compare(0, strlen("a"), "a") == 0;
+  // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use starts_with
+  // CHECK-FIXES: s.starts_with("a");
+
+  s.compare(0, std::strlen("a"), "a") == 0;
+  // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use starts_with
+  // CHECK-FIXES: s.starts_with("a");
+
+  s.compare(0, std::strlen(("a")), "a") == 0;
+  // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use starts_with
+  // CHECK-FIXES: s.starts_with("a");
+
+  s.compare(0, std::strlen(("a")), (("a"))) == 0;
+  // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use starts_with
+  // CHECK-FIXES: s.starts_with("a");
+
+  s.compare(0, s.size(), s) == 0;
+  // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use starts_with
+  // CHECK-FIXES: s.starts_with(s);
+
+  s.compare(0, s.length(), s) == 0;
+  // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use starts_with
+  // CHECK-FIXES: s.starts_with(s);
+
+  0 != s.compare(0, sv.length(), sv);
+  // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use starts_with
+  // CHECK-FIXES: s.starts_with(sv);
+
+  #define LENGTH(x) (x).length()
+  s.compare(0, LENGTH(s), s) == 0;
+  // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use starts_with
+  // CHECK-FIXES: s.starts_with(s);
+
+  s.compare(ZERO, LENGTH(s), s) == ZERO;
+  // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use starts_with
+  // CHECK-FIXES: s.starts_with(s);
+
+  s.compare(ZERO, LENGTH(sv), sv) != 0;
+  // CHECK-MESSAGES: :[[@LINE-1]]:{{[0-9]+}}: warning: use starts_with
+  // CHECK-FIXES: !s.starts_with(sv);
+
   // Expressions that don't trigger the check are here.
   #define EQ(x, y) ((x) == (y))
   EQ(s.find("a"), 0);
 
   #define DOTFIND(x, y) (x).find(y)
   DOTFIND(s, "a") == 0;
+
+  #define STARTS_WITH_COMPARE(x, y) (x).compare(0, (x).size(), (y))
+  STARTS_WITH_COMPARE(s, s) == 0;
+
+  s.compare(0, 1, "ab") == 0;
 }
diff --git a/clang-tools-extra/test/clang-tidy/checkers/readability/math-missing-parentheses.cpp b/clang-tools-extra/test/clang-tidy/checkers/readability/math-missing-parentheses.cpp
@@ -0,0 +1,120 @@
+// RUN: %check_clang_tidy %s readability-math-missing-parentheses %t
+
+#define MACRO_AND &
+#define MACRO_ADD +
+#define MACRO_OR |
+#define MACRO_MULTIPLY *
+#define MACRO_XOR ^
+#define MACRO_SUBTRACT -
+#define MACRO_DIVIDE /
+
+int foo(){
+    return 5;
+}
+
+int bar(){
+    return 4;
+}
+
+class fun{
+public:
+    int A;
+    double B;
+    fun(){
+        A = 5;
+        B = 5.4;
+    }
+};
+
+void f(){
+    //CHECK-MESSAGES: :[[@LINE+2]]:17: warning: '*' has higher precedence than '+'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-FIXES: int a = 1 + (2 * 3);
+    int a = 1 + 2 * 3;
+
+    int a_negative = 1 + (2 * 3); // No warning
+
+    int b = 1 + 2 + 3; // No warning
+
+    int c = 1 * 2 * 3; // No warning
+
+    //CHECK-MESSAGES: :[[@LINE+3]]:17: warning: '*' has higher precedence than '+'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-MESSAGES: :[[@LINE+2]]:25: warning: '/' has higher precedence than '-'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-FIXES: int d = 1 + (2 * 3) - (4 / 5);
+    int d = 1 + 2 * 3 - 4 / 5;
+
+    int d_negative = 1 + (2 * 3) - (4 / 5); // No warning
+
+    //CHECK-MESSAGES: :[[@LINE+4]]:13: warning: '&' has higher precedence than '|'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-MESSAGES: :[[@LINE+3]]:17: warning: '+' has higher precedence than '&'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-MESSAGES: :[[@LINE+2]]:25: warning: '*' has higher precedence than '|'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-FIXES: int e = (1 & (2 + 3)) | (4 * 5);
+    int e = 1 & 2 + 3 | 4 * 5;
+
+    int e_negative = (1 & (2 + 3)) | (4 * 5); // No warning
+
+    //CHECK-MESSAGES: :[[@LINE+2]]:13: warning: '*' has higher precedence than '+'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-FIXES: int f = (1 * -2) + 4;
+    int f = 1 * -2 + 4;
+
+    int f_negative = (1 * -2) + 4; // No warning
+
+    //CHECK-MESSAGES: :[[@LINE+2]]:13: warning: '*' has higher precedence than '+'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-FIXES: int g = (1 * 2 * 3) + 4 + 5;
+    int g = 1 * 2 * 3 + 4 + 5;
+
+    int g_negative = (1 * 2 * 3) + 4 + 5; // No warning
+
+    //CHECK-MESSAGES: :[[@LINE+4]]:13: warning: '&' has higher precedence than '|'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-MESSAGES: :[[@LINE+3]]:19: warning: '+' has higher precedence than '&'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-MESSAGES: :[[@LINE+2]]:27: warning: '*' has higher precedence than '|'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-FIXES: int h = (120 & (2 + 3)) | (22 * 5);
+    int h = 120 & 2 + 3 | 22 * 5;
+
+    int h_negative = (120 & (2 + 3)) | (22 * 5); // No warning
+
+    int i = 1 & 2 & 3; // No warning
+
+    int j = 1 | 2 | 3; // No warning
+
+    int k = 1 ^ 2 ^ 3; // No warning
+
+    //CHECK-MESSAGES: :[[@LINE+2]]:13: warning: '+' has higher precedence than '^'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-FIXES: int l = (1 + 2) ^ 3;
+    int l = 1 + 2 ^ 3;
+
+    int l_negative = (1 + 2) ^ 3; // No warning
+
+    //CHECK-MESSAGES: :[[@LINE+2]]:13: warning: '*' has higher precedence than '+'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-FIXES: int m = (2 * foo()) + bar();
+    int m = 2 * foo() + bar();
+
+    int m_negative = (2 * foo()) + bar(); // No warning
+
+    //CHECK-MESSAGES: :[[@LINE+2]]:13: warning: '*' has higher precedence than '+'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-FIXES: int n = (1.05 * foo()) + double(bar());
+    int n = 1.05 * foo() + double(bar());
+
+    int n_negative = (1.05 * foo()) + double(bar()); // No warning
+
+    //CHECK-MESSAGES: :[[@LINE+3]]:17: warning: '*' has higher precedence than '+'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-FIXES: int o = 1 + (obj.A * 3) + obj.B;
+    fun obj;
+    int o = 1 + obj.A * 3 + obj.B;
+
+    int o_negative = 1 + (obj.A * 3) + obj.B; // No warning
+
+    //CHECK-MESSAGES: :[[@LINE+2]]:18: warning: '*' has higher precedence than '+'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-FIXES: int p = 1U + (2 * 3);
+    int p = 1U + 2 * 3;
+
+    int p_negative = 1U + (2 * 3); // No warning
+
+    //CHECK-MESSAGES: :[[@LINE+7]]:13: warning: '+' has higher precedence than '|'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-MESSAGES: :[[@LINE+6]]:25: warning: '*' has higher precedence than '+'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-MESSAGES: :[[@LINE+5]]:53: warning: '&' has higher precedence than '^'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-MESSAGES: :[[@LINE+4]]:53: warning: '^' has higher precedence than '|'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-MESSAGES: :[[@LINE+3]]:77: warning: '-' has higher precedence than '^'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-MESSAGES: :[[@LINE+2]]:94: warning: '/' has higher precedence than '-'; add parentheses to explicitly specify the order of operations [readability-math-missing-parentheses]
+    //CHECK-FIXES: int q = (1 MACRO_ADD (2 MACRO_MULTIPLY 3)) MACRO_OR ((4 MACRO_AND 5) MACRO_XOR (6 MACRO_SUBTRACT (7 MACRO_DIVIDE 8)));
+    int q = 1 MACRO_ADD 2 MACRO_MULTIPLY 3 MACRO_OR 4 MACRO_AND 5 MACRO_XOR 6 MACRO_SUBTRACT 7 MACRO_DIVIDE 8; // No warning
+}
diff --git a/clang-tools-extra/test/clang-tidy/infrastructure/Inputs/config-files/5/.clang-tidy b/clang-tools-extra/test/clang-tidy/infrastructure/Inputs/config-files/5/.clang-tidy
@@ -0,0 +1,4 @@
+InheritParentConfig: true
+Checks: 'misc-throw-by-value-catch-by-reference'
+CheckOptions:
+  misc-throw-by-value-catch-by-reference.MaxSize: '1152921504606846976'
diff --git a/clang-tools-extra/test/clang-tidy/infrastructure/config-files.cpp b/clang-tools-extra/test/clang-tidy/infrastructure/config-files.cpp
@@ -64,3 +64,11 @@
 
 // Validate that check options are printed in alphabetical order:
 // RUN: clang-tidy --checks="-*,readability-identifier-naming" --dump-config %S/Inputs/config-files/- -- | grep "readability-identifier-naming\." | sort --check
+
+// Dumped config does not overflow for unsigned options
+// RUN: clang-tidy --dump-config \
+// RUN: --checks="-*,misc-throw-by-value-catch-by-reference" \
+// RUN: -- | grep -v -q "misc-throw-by-value-catch-by-reference.MaxSize: '-1'"
+
+// RUN: clang-tidy --dump-config %S/Inputs/config-files/5/- \
+// RUN: -- | grep -q "misc-throw-by-value-catch-by-reference.MaxSize: '1152921504606846976'"
diff --git a/clang-tools-extra/test/clang-tidy/infrastructure/verify-config.cpp b/clang-tools-extra/test/clang-tidy/infrastructure/verify-config.cpp
@@ -18,3 +18,15 @@
 // CHECK-VERIFY: command-line option '-checks': warning: check glob 'bad*glob' doesn't match any known check [-verify-config]
 // CHECK-VERIFY: command-line option '-checks': warning: unknown check 'llvm-includeorder'; did you mean 'llvm-include-order' [-verify-config]
 // CHECK-VERIFY: command-line option '-checks': warning: unknown check 'my-made-up-check' [-verify-config]
+
+// RUN: echo -e 'Checks: |\n bugprone-argument-comment\n bugprone-assert-side-effect,\n bugprone-bool-pointer-implicit-conversion\n readability-use-anyof*' > %T/MyClangTidyConfig
+// RUN: clang-tidy -verify-config \
+// RUN: --config-file=%T/MyClangTidyConfig | FileCheck %s -check-prefix=CHECK-VERIFY-BLOCK-OK
+// CHECK-VERIFY-BLOCK-OK: No config errors detected.
+
+// RUN: echo -e 'Checks: |\n bugprone-arguments-*\n bugprone-assert-side-effects\n bugprone-bool-pointer-implicit-conversion' > %T/MyClangTidyConfigBad
+// RUN: not clang-tidy -verify-config \
+// RUN: --config-file=%T/MyClangTidyConfigBad 2>&1 | FileCheck %s -check-prefix=CHECK-VERIFY-BLOCK-BAD
+// CHECK-VERIFY-BLOCK-BAD: command-line option '-config': warning: check glob 'bugprone-arguments-*' doesn't match any known check [-verify-config]
+// CHECK-VERIFY-BLOCK-BAD: command-line option '-config': warning: unknown check 'bugprone-assert-side-effects'; did you mean 'bugprone-assert-side-effect' [-verify-config]
+
diff --git a/clang-tools-extra/test/pp-trace/pp-trace-pragma-general.cpp b/clang-tools-extra/test/pp-trace/pp-trace-pragma-general.cpp
@@ -21,6 +21,12 @@ void foo() {
 
 // CHECK: ---
 // CHECK-NEXT: - Callback: PragmaDirective
+// CHECK-NEXT:   Loc: "<built-in>:{{.+}}:1"
+// CHECK-NEXT:   Introducer: PIK_HashPragma
+// CHECK-NEXT: - Callback: PragmaDirective
+// CHECK-NEXT:   Loc: "<built-in>:{{.+}}:1"
+// CHECK-NEXT:   Introducer: PIK_HashPragma
+// CHECK-NEXT: - Callback: PragmaDirective
 // CHECK-NEXT:   Loc: "{{.*}}{{[/\\]}}pp-trace-pragma-general.cpp:3:1"
 // CHECK-NEXT:   Introducer: PIK_HashPragma
 // CHECK-NEXT: - Callback: PragmaDiagnosticPush

diff --git a/clang-tools-extra/test/pp-trace/pp-trace-pragma-ms.cpp b/clang-tools-extra/test/pp-trace/pp-trace-pragma-ms.cpp
@@ -18,6 +18,12 @@
 
 // CHECK: ---
 // CHECK-NEXT: - Callback: PragmaDirective
+// CHECK-NEXT:   Loc: "<built-in>:{{.+}}:1"
+// CHECK-NEXT:   Introducer: PIK_HashPragma
+// CHECK-NEXT: - Callback: PragmaDirective
+// CHECK-NEXT:   Loc: "<built-in>:{{.+}}:1"
+// CHECK-NEXT:   Introducer: PIK_HashPragma
+// CHECK-NEXT: - Callback: PragmaDirective
 // CHECK-NEXT:   Loc: "{{.*}}{{[/\\]}}pp-trace-pragma-ms.cpp:3:1"
 // CHECK-NEXT:   Introducer: PIK_HashPragma
 // CHECK-NEXT: - Callback: PragmaComment
@@ -67,7 +73,7 @@
 // CHECK-NEXT:   Introducer: PIK_HashPragma
 // CHECK-NEXT: - Callback: PragmaMessage
 // CHECK-NEXT:   Loc: "{{.*}}{{[/\\]}}pp-trace-pragma-ms.cpp:13:9"
-// CHECK-NEXT:   Namespace: 
+// CHECK-NEXT:   Namespace:
 // CHECK-NEXT:   Kind: PMK_Message
 // CHECK-NEXT:   Str: message argument
 // CHECK-NEXT: - Callback: PragmaDirective

diff --git a/clang-tools-extra/test/pp-trace/pp-trace-pragma-opencl.cpp b/clang-tools-extra/test/pp-trace/pp-trace-pragma-opencl.cpp
@@ -6,6 +6,12 @@
 
 // CHECK: ---
 // CHECK-NEXT: - Callback: PragmaDirective
+// CHECK-NEXT:   Loc: "<built-in>:{{.+}}:1"
+// CHECK-NEXT:   Introducer: PIK_HashPragma
+// CHECK-NEXT: - Callback: PragmaDirective
+// CHECK-NEXT:   Loc: "<built-in>:{{.+}}:1"
+// CHECK-NEXT:   Introducer: PIK_HashPragma
+// CHECK-NEXT: - Callback: PragmaDirective
 // CHECK-NEXT:   Loc: "{{.*}}{{[/\\]}}pp-trace-pragma-opencl.cpp:3:1"
 // CHECK-NEXT:   Introducer: PIK_HashPragma
 // CHECK-NEXT: - Callback: PragmaOpenCLExtension

diff --git a/clang/CMakeLists.txt b/clang/CMakeLists.txt
@@ -166,6 +166,10 @@ if(CLANG_ENABLE_LIBXML2)
 endif()
 
 if(CLANG_ENABLE_CIR)
+  if (CLANG_BUILT_STANDALONE)
+    message(FATAL_ERROR
+      "ClangIR is not yet supported in the standalone build.")
+  endif()
   if (NOT "${LLVM_ENABLE_PROJECTS}" MATCHES "MLIR|mlir")
     message(FATAL_ERROR
       "Cannot build ClangIR without MLIR in LLVM_ENABLE_PROJECTS")

diff --git a/clang/cmake/caches/Apple-stage2.cmake b/clang/cmake/caches/Apple-stage2.cmake
@@ -16,6 +16,7 @@ set(LLVM_ENABLE_BACKTRACES OFF CACHE BOOL "")
 set(LLVM_ENABLE_MODULES ON CACHE BOOL "")
 set(LLVM_EXTERNALIZE_DEBUGINFO ON CACHE BOOL "")
 set(LLVM_ENABLE_EXPORTED_SYMBOLS_IN_EXECUTABLES OFF CACHE BOOL "")
+set(LLVM_PLUGIN_SUPPORT OFF CACHE BOOL "")
 set(CLANG_PLUGIN_SUPPORT OFF CACHE BOOL "")
 set(CLANG_SPAWN_CC1 ON CACHE BOOL "")
 set(BUG_REPORT_URL "http://developer.apple.com/bugreporter/" CACHE STRING "")

diff --git a/clang/cmake/caches/Release.cmake b/clang/cmake/caches/Release.cmake
@@ -1,93 +1,93 @@
 # Plain options configure the first build.
 # BOOTSTRAP_* options configure the second build.
 # BOOTSTRAP_BOOTSTRAP_* options configure the third build.
+# PGO Builds have 3 stages (stage1, stage2-instrumented, stage2)
+# non-PGO Builds have 2 stages (stage1, stage2)
 
-# General Options
+
+function (set_final_stage_var name value type)
+  if (LLVM_RELEASE_ENABLE_PGO)
+    set(BOOTSTRAP_BOOTSTRAP_${name} ${value} CACHE ${type} "")
+  else()
+    set(BOOTSTRAP_${name} ${value} CACHE ${type} "")
+  endif()
+endfunction()
+
+function (set_instrument_and_final_stage_var name value type)
+  # This sets the varaible for the final stage in non-PGO builds and in
+  # the stage2-instrumented stage for PGO builds.
+  set(BOOTSTRAP_${name} ${value} CACHE ${type} "")
+  if (LLVM_RELEASE_ENABLE_PGO)
+    # Set the variable in the final stage for PGO builds.
+    set(BOOTSTRAP_BOOTSTRAP_${name} ${value} CACHE ${type} "")
+  endif()
+endfunction()
+
+# General Options:
+# If you want to override any of the LLVM_RELEASE_* variables you can set them
+# on the command line via -D, but you need to do this before you pass this
+# cache file to CMake via -C. e.g.
+#
+# cmake -D LLVM_RELEASE_ENABLE_PGO=ON -C Release.cmake
 set(LLVM_RELEASE_ENABLE_LTO THIN CACHE STRING "")
 set(LLVM_RELEASE_ENABLE_PGO OFF CACHE BOOL "")
-
+set(LLVM_RELEASE_ENABLE_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind" CACHE STRING "")
+set(LLVM_RELEASE_ENABLE_PROJECTS "clang;lld;lldb;clang-tools-extra;bolt;polly;mlir;flang" CACHE STRING "")
+# Note we don't need to add install here, since it is one of the pre-defined
+# steps.
+set(LLVM_RELEASE_FINAL_STAGE_TARGETS "clang;package;check-all;check-llvm;check-clang" CACHE STRING "")
 set(CMAKE_BUILD_TYPE RELEASE CACHE STRING "")
 
-# Stage 1 Bootstrap Setup
+# Stage 1 Options
+set(LLVM_TARGETS_TO_BUILD Native CACHE STRING "")
 set(CLANG_ENABLE_BOOTSTRAP ON CACHE BOOL "")
+
+set(STAGE1_PROJECTS "clang")
+set(STAGE1_RUNTIMES "")
+
 if (LLVM_RELEASE_ENABLE_PGO)
+  list(APPEND STAGE1_PROJECTS "lld")
+  list(APPEND STAGE1_RUNTIMES "compiler-rt")
   set(CLANG_BOOTSTRAP_TARGETS
     generate-profdata
-    stage2
+    stage2-package
     stage2-clang
-    stage2-distribution
     stage2-install
-    stage2-install-distribution
-    stage2-install-distribution-toolchain
     stage2-check-all
     stage2-check-llvm
-    stage2-check-clang
-    stage2-test-suite CACHE STRING "")
-else()
-  set(CLANG_BOOTSTRAP_TARGETS
-    clang
-    check-all
-    check-llvm
-    check-clang
-    test-suite
-    stage3
-    stage3-clang
-    stage3-check-all
-    stage3-check-llvm
-    stage3-check-clang
-    stage3-install
-    stage3-test-suite CACHE STRING "")
-endif()
+    stage2-check-clang CACHE STRING "")
 
-# Stage 1 Options
-set(STAGE1_PROJECTS "clang")
-set(STAGE1_RUNTIMES "")
+  # Configuration for stage2-instrumented
+  set(BOOTSTRAP_CLANG_ENABLE_BOOTSTRAP ON CACHE STRING "")
+  # This enables the build targets for the final stage which is called stage2.
+  set(BOOTSTRAP_CLANG_BOOTSTRAP_TARGETS ${LLVM_RELEASE_FINAL_STAGE_TARGETS} CACHE STRING "")
+  set(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED IR CACHE STRING "")
+  set(BOOTSTRAP_LLVM_ENABLE_RUNTIMES "compiler-rt" CACHE STRING "")
+  set(BOOTSTRAP_LLVM_ENABLE_PROJECTS "clang;lld" CACHE STRING "")
 
-if (LLVM_RELEASE_ENABLE_PGO)
-  list(APPEND STAGE1_PROJECTS "lld")
-  list(APPEND STAGE1_RUNTIMES "compiler-rt")
+else()
+  if (LLVM_RELEASE_ENABLE_LTO)
+    list(APPEND STAGE1_PROJECTS "lld")
+  endif()
+  # Any targets added here will be given the target name stage2-${target}, so
+  # if you want to run them you can just use:
+  # ninja -C $BUILDDIR stage2-${target}
+  set(CLANG_BOOTSTRAP_TARGETS ${LLVM_RELEASE_FINAL_STAGE_TARGETS} CACHE STRING "")
 endif()
 
+# Stage 1 Common Config
 set(LLVM_ENABLE_RUNTIMES ${STAGE1_RUNTIMES} CACHE STRING "")
 set(LLVM_ENABLE_PROJECTS ${STAGE1_PROJECTS} CACHE STRING "")
 
-set(LLVM_TARGETS_TO_BUILD Native CACHE STRING "")
-
-# Stage 2 Bootstrap Setup
-set(BOOTSTRAP_CLANG_ENABLE_BOOTSTRAP ON CACHE STRING "")
-set(BOOTSTRAP_CLANG_BOOTSTRAP_TARGETS
-  clang
-  check-all
-  check-llvm
-  check-clang CACHE STRING "")
-
-# Stage 2 Options
-set(STAGE2_PROJECTS "clang")
-set(STAGE2_RUNTIMES "")
-
-if (LLVM_RELEASE_ENABLE_LTO OR LLVM_RELEASE_ENABLE_PGO)
- list(APPEND STAGE2_PROJECTS "lld")
-endif()
-
-if (LLVM_RELEASE_ENABLE_PGO)
-  set(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED IR CACHE STRING "")
-  list(APPEND STAGE2_RUNTIMES "compiler-rt")
-  set(BOOTSTRAP_LLVM_ENABLE_LTO ${LLVM_RELEASE_ENABLE_LTO})
-  if (LLVM_RELEASE_ENABLE_LTO)
-    set(BOOTSTRAP_LLVM_ENABLE_LLD ON CACHE BOOL "")
-  endif()
+# stage2-instrumented and Final Stage Config:
+# Options that need to be set in both the instrumented stage (if we are doing
+# a pgo build) and the final stage.
+set_instrument_and_final_stage_var(LLVM_ENABLE_LTO "${LLVM_RELEASE_ENABLE_LTO}" STRING)
+if (LLVM_RELEASE_ENABLE_LTO)
+  set_instrument_and_final_stage_var(LLVM_ENABLE_LLD "ON" BOOL)
 endif()
 
-set(BOOTSTRAP_LLVM_ENABLE_PROJECTS ${STAGE2_PROJECTS} CACHE STRING "")
-set(BOOTSTRAP_LLVM_ENABLE_RUNTIMES ${STAGE2_RUNTIMES} CACHE STRING "")
-if (NOT LLVM_RELEASE_ENABLE_PGO)
-  set(BOOTSTRAP_LLVM_TARGETS_TO_BUILD Native CACHE STRING "")
-endif()
+# Final Stage Config (stage2)
+set_final_stage_var(LLVM_ENABLE_RUNTIMES "${LLVM_RELEASE_ENABLE_RUNTIMES}" STRING)
+set_final_stage_var(LLVM_ENABLE_PROJECTS "${LLVM_RELEASE_ENABLE_PROJECTS}" STRING)
 
-# Stage 3 Options
-set(BOOTSTRAP_BOOTSTRAP_LLVM_ENABLE_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind" CACHE STRING "")
-set(BOOTSTRAP_BOOTSTRAP_LLVM_ENABLE_PROJECTS "clang;lld;lldb;clang-tools-extra;bolt;polly;mlir;flang" CACHE STRING "")
-set(BOOTSTRAP_BOOTSTRAP_LLVM_ENABLE_LTO ${LLVM_RELEASE_ENABLE_LTO} CACHE STRING "")
-if (LLVM_RELEASE_ENABLE_LTO)
-  set(BOOTSTRAP_BOOTSTRAP_LLVM_ENABLE_LLD ON CACHE BOOL "")
-endif()
diff --git a/clang/cmake/caches/VectorEngine.cmake b/clang/cmake/caches/VectorEngine.cmake
@@ -40,6 +40,7 @@ set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_CRT OFF CACHE BOOL "")
 set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_SANITIZERS OFF CACHE BOOL "")
 set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_XRAY OFF CACHE BOOL "")
 set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_LIBFUZZER OFF CACHE BOOL "")
+set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_CTX_PROFILE OFF CACHE BOOL "")
 set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_PROFILE OFF CACHE BOOL "")
 set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_MEMPROF OFF CACHE BOOL "")
 set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_ORC OFF CACHE BOOL "")
@@ -52,6 +53,7 @@ set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_SANITIZERS OFF CACHE BOOL ""
 set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_XRAY OFF CACHE BOOL "")
 set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_LIBFUZZER OFF CACHE BOOL "")
 set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_PROFILE ON CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_CTX_PROFILE OFF CACHE BOOL "")
 set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_MEMPROF OFF CACHE BOOL "")
 set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_ORC OFF CACHE BOOL "")
 set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_GWP_ASAN OFF CACHE BOOL "")

diff --git a/clang/docs/ClangOffloadBundler.rst b/clang/docs/ClangOffloadBundler.rst
@@ -518,11 +518,14 @@ The compressed offload bundle begins with a header followed by the compressed bi
     This is a unique identifier to distinguish compressed offload bundles. The value is the string 'CCOB' (Compressed Clang Offload Bundle).
 
 - **Version Number (16-bit unsigned int)**:
-    This denotes the version of the compressed offload bundle format. The current version is `1`.
+    This denotes the version of the compressed offload bundle format. The current version is `2`.
 
 - **Compression Method (16-bit unsigned int)**:
     This field indicates the compression method used. The value corresponds to either `zlib` or `zstd`, represented as a 16-bit unsigned integer cast from the LLVM compression enumeration.
 
+- **Total File Size (32-bit unsigned int)**:
+    This is the total size (in bytes) of the file, including the header. Available in version 2 and above.
+
 - **Uncompressed Binary Size (32-bit unsigned int)**:
     This is the size (in bytes) of the binary data before it was compressed.
 

diff --git a/clang/docs/LanguageExtensions.rst b/clang/docs/LanguageExtensions.rst
@@ -1642,7 +1642,8 @@ The following type trait primitives are supported by Clang. Those traits marked
   were made trivially relocatable via the ``clang::trivial_abi`` attribute.
 * ``__is_trivially_equality_comparable`` (Clang): Returns true if comparing two
   objects of the provided type is known to be equivalent to comparing their
-  value representations.
+  object representations. Note that types containing padding bytes are never
+  trivially equality comparable.
 * ``__is_unbounded_array`` (C++, GNU, Microsoft, Embarcadero)
 * ``__is_union`` (C++, GNU, Microsoft, Embarcadero)
 * ``__is_unsigned`` (C++, Embarcadero):
@@ -5571,3 +5572,25 @@ but the expression has no runtime effects.
 Type- and value-dependent expressions are not supported yet.
 
 This facility is designed to aid with testing name lookup machinery.
+
+Predefined Macros
+=================
+
+`__GCC_DESTRUCTIVE_SIZE` and `__GCC_CONSTRUCTIVE_SIZE`
+------------------------------------------------------
+Specify the mimum offset between two objects to avoid false sharing and the
+maximum size of contiguous memory to promote true sharing, respectively. These
+macros are predefined in all C and C++ language modes, but can be redefined on
+the command line with ``-D`` to specify different values as needed or can be
+undefined on the command line with ``-U`` to disable support for the feature.
+
+**Note: the values the macros expand to are not guaranteed to be stable. They
+are are affected by architectures and CPU tuning flags, can change between
+releases of Clang and will not match the values defined by other compilers such
+as GCC.**
+
+Compiling different TUs depending on these flags (including use of
+``std::hardware_constructive_interference`` or
+``std::hardware_destructive_interference``)  with different compilers, macro
+definitions, or architecture flags will lead to ODR violations and should be
+avoided.
diff --git a/clang/docs/OpenMPSupport.rst b/clang/docs/OpenMPSupport.rst
@@ -310,7 +310,9 @@ implementation.
 +------------------------------+--------------------------------------------------------------+--------------------------+-----------------------------------------------------------------------+
 | misc                         | dispatch construct and function variant argument adjustment  | :part:`worked on`        | D99537, D99679                                                        |
 +------------------------------+--------------------------------------------------------------+--------------------------+-----------------------------------------------------------------------+
-| misc                         | assume and assumes directives                                | :part:`worked on`        |                                                                       |
+| misc                         | assumes directives                                           | :part:`worked on`        |                                                                       |
++------------------------------+--------------------------------------------------------------+--------------------------+-----------------------------------------------------------------------+
+| misc                         | assume directive                                             | :part:`worked on`        |                                                                       |
 +------------------------------+--------------------------------------------------------------+--------------------------+-----------------------------------------------------------------------+
 | misc                         | nothing directive                                            | :good:`done`             | D123286                                                               |
 +------------------------------+--------------------------------------------------------------+--------------------------+-----------------------------------------------------------------------+