ashermancinelli · ashermancinelli · Mar 10, 2025 · Mar 10, 2025 · Mar 10, 2025 · Mar 10, 2025
diff --git a/.ci/metrics/metrics.py b/.ci/metrics/metrics.py
diff --git a/.github/workflows/issue-write.yml b/.github/workflows/issue-write.yml
@@ -39,7 +39,7 @@ jobs:
 
       - name: 'Comment on PR'
         if: steps.download-artifact.outputs.artifact-id != ''
-        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
+        uses: actions/github-script@ffc2c79a5b2490bd33e0a41c1de74b877714d736 # v3.2.0
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |

diff --git a/.github/workflows/libclang-python-tests.yml b/.github/workflows/libclang-python-tests.yml
@@ -30,7 +30,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.11"]
+        python-version: ["3.8", "3.13"]
     uses: ./.github/workflows/llvm-project-tests.yml
     with:
       build_target: check-clang-python

diff --git a/.github/workflows/libcxx-build-and-test.yaml b/.github/workflows/libcxx-build-and-test.yaml
@@ -55,7 +55,7 @@ jobs:
             cc: 'gcc-14'
             cxx: 'g++-14'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: ${{ matrix.config }}.${{ matrix.cxx }}
         run: libcxx/utils/ci/run-buildbot ${{ matrix.config }}
         env:
@@ -105,7 +105,7 @@ jobs:
             cc: 'clang-18'
             cxx: 'clang++-18'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: ${{ matrix.config }}
         run: libcxx/utils/ci/run-buildbot ${{ matrix.config }}
         env:
@@ -169,7 +169,7 @@ jobs:
     runs-on: ${{ matrix.machine }}
     container: ghcr.io/llvm/libcxx-linux-builder:b319dfef21f6c7b0bc6a356d6b9f41a3b3b98ae9
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: ${{ matrix.config }}
         run: libcxx/utils/ci/run-buildbot ${{ matrix.config }}
         env:
@@ -207,11 +207,11 @@ jobs:
           os: macos-13
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
-      - uses: maxim-lobanov/setup-xcode@v1
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: maxim-lobanov/setup-xcode@60606e260d2fc5762a71e64e74b2174e8ea3c8bd # v1.6.0
         with:
           xcode-version: 'latest'
-      - uses: seanmiddleditch/gha-setup-ninja@master
+      - uses: seanmiddleditch/gha-setup-ninja@3b1f8f94a2f8254bd26914c4ab9474d4f0015f67 # v6
       - name: Build and test
         run: |
           python3 -m venv .venv
@@ -247,7 +247,7 @@ jobs:
         - { config: mingw-dll-i686, mingw: true }
         - { config: mingw-incomplete-sysroot, mingw: true }
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Install dependencies
         run: |
           choco install -y ninja
@@ -275,7 +275,7 @@ jobs:
           echo "c:\Program Files\Git\usr\bin" | Out-File -FilePath $Env:GITHUB_PATH -Encoding utf8 -Append
       - name: Set up the MSVC dev environment
         if: ${{ matrix.mingw != true }}
-        uses: ilammy/msvc-dev-cmd@v1
+        uses: ilammy/msvc-dev-cmd@0b201ec74fa43914dc39ae48a89fd1d8cb592756 # v1.13.0
       - name: Build and test
         run: |
           bash libcxx/utils/ci/run-buildbot ${{ matrix.config }}
diff --git a/.github/workflows/libcxx-build-containers.yml b/.github/workflows/libcxx-build-containers.yml
@@ -32,7 +32,7 @@ jobs:
       packages: write
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
     - name: Build the Linux builder image
       working-directory: libcxx/utils/ci
@@ -47,7 +47,7 @@ jobs:
     #     TAG: ${{ github.sha }}
 
     - name: Log in to GitHub Container Registry
-      uses: docker/login-action@v3
+      uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
       with:
         registry: ghcr.io
         username: ${{ github.actor }}

diff --git a/.github/workflows/libcxx-check-generated-files.yml b/.github/workflows/libcxx-check-generated-files.yml
@@ -12,10 +12,10 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Fetch LLVM sources
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Install dependencies
-        uses: aminya/setup-cpp@v1
+        uses: aminya/setup-cpp@17c11551771948abc5752bbf3183482567c7caf0 # v1.1.1
         with:
           clangformat: 17.0.1
           ninja: true

diff --git a/.github/workflows/release-asset-audit.py b/.github/workflows/release-asset-audit.py
@@ -24,7 +24,7 @@ def _get_uploaders(release_version):
         return set(
             [
                 "DimitryAndric",
-                "stefanp-ibm",
+                "stefanp-synopsys",
                 "lei137",
                 "omjavaid",
                 "nicolerabjohn",

diff --git a/clang-tools-extra/clang-tidy/bugprone/OptionalValueConversionCheck.cpp b/clang-tools-extra/clang-tidy/bugprone/OptionalValueConversionCheck.cpp
@@ -12,6 +12,7 @@
 #include "../utils/OptionsUtils.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/ASTMatchers/ASTMatchers.h"
 #include <array>
 
 using namespace clang::ast_matchers;
@@ -27,27 +28,11 @@ AST_MATCHER_P(QualType, hasCleanType, Matcher<QualType>, InnerMatcher) {
       Finder, Builder);
 }
 
-constexpr std::array<StringRef, 2> NameList{
+constexpr std::array<StringRef, 2> MakeSmartPtrList{
     "::std::make_unique",
     "::std::make_shared",
 };
-
-Matcher<Expr> constructFrom(Matcher<QualType> TypeMatcher,
-                            Matcher<Expr> ArgumentMatcher) {
-  return expr(
-      anyOf(
-          // construct optional
-          cxxConstructExpr(argumentCountIs(1U), hasType(TypeMatcher),
-                           hasArgument(0U, ArgumentMatcher)),
-          // known template methods in std
-          callExpr(argumentCountIs(1),
-                   callee(functionDecl(
-                       matchers::matchesAnyListedName(NameList),
-                       hasTemplateArgument(0, refersToType(TypeMatcher)))),
-                   hasArgument(0, ArgumentMatcher))),
-      unless(anyOf(hasAncestor(typeLoc()),
-                   hasAncestor(expr(matchers::hasUnevaluatedContext())))));
-}
+constexpr StringRef MakeOptional = "::std::make_optional";
 
 } // namespace
 
@@ -74,7 +59,7 @@ void OptionalValueConversionCheck::registerMatchers(MatchFinder *Finder) {
   auto EqualsBoundOptionalType =
       qualType(hasCleanType(equalsBoundNode("optional-type")));
 
-  auto OptionalDereferenceMatcher = callExpr(
+  auto OptionalDerefMatcherImpl = callExpr(
       anyOf(
           cxxOperatorCallExpr(hasOverloadedOperatorName("*"),
                               hasUnaryOperand(hasType(EqualsBoundOptionalType)))
@@ -88,11 +73,41 @@ void OptionalValueConversionCheck::registerMatchers(MatchFinder *Finder) {
 
   auto StdMoveCallMatcher =
       callExpr(argumentCountIs(1), callee(functionDecl(hasName("::std::move"))),
-               hasArgument(0, ignoringImpCasts(OptionalDereferenceMatcher)));
+               hasArgument(0, ignoringImpCasts(OptionalDerefMatcherImpl)));
+  auto OptionalDerefMatcher =
+      ignoringImpCasts(anyOf(OptionalDerefMatcherImpl, StdMoveCallMatcher));
+
   Finder->addMatcher(
-      expr(constructFrom(BindOptionalType,
-                         ignoringImpCasts(anyOf(OptionalDereferenceMatcher,
-                                                StdMoveCallMatcher))))
+      expr(anyOf(
+               // construct optional
+               cxxConstructExpr(argumentCountIs(1), hasType(BindOptionalType),
+                                hasArgument(0, OptionalDerefMatcher)),
+               // known template methods in std
+               callExpr(
+                   argumentCountIs(1),
+                   anyOf(
+                       // match std::make_unique std::make_shared
+                       callee(functionDecl(
+                           matchers::matchesAnyListedName(MakeSmartPtrList),
+                           hasTemplateArgument(
+                               0, refersToType(BindOptionalType)))),
+                       // match first std::make_optional by limit argument count
+                       // (1) and template count (1).
+                       // 1. template< class T > constexpr
+                       //    std::optional<decay_t<T>> make_optional(T&& value);
+                       // 2. template< class T, class... Args > constexpr
+                       //    std::optional<T> make_optional(Args&&... args);
+                       callee(functionDecl(templateArgumentCountIs(1),
+                                           hasName(MakeOptional),
+                                           returns(BindOptionalType)))),
+                   hasArgument(0, OptionalDerefMatcher)),
+               callExpr(
+
+                   argumentCountIs(1),
+
+                   hasArgument(0, OptionalDerefMatcher))),
+           unless(anyOf(hasAncestor(typeLoc()),
+                        hasAncestor(expr(matchers::hasUnevaluatedContext())))))
           .bind("expr"),
       this);
 }

diff --git a/clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.cpp b/clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.cpp
@@ -136,16 +136,14 @@ void ConstCorrectnessCheck::check(const MatchFinder::MatchResult &Result) {
     return;
 
   VariableCategory VC = VariableCategory::Value;
-  if (Variable->getType()->isReferenceType())
+  const QualType VT = Variable->getType();
+  if (VT->isReferenceType())
     VC = VariableCategory::Reference;
-  if (Variable->getType()->isPointerType())
+  else if (VT->isPointerType())
     VC = VariableCategory::Pointer;
-  if (Variable->getType()->isArrayType()) {
-    if (const auto *ArrayT = dyn_cast<ArrayType>(Variable->getType())) {
-      if (ArrayT->getElementType()->isPointerType())
-        VC = VariableCategory::Pointer;
-    }
-  }
+  else if (const auto *ArrayT = dyn_cast<ArrayType>(VT))
+    if (ArrayT->getElementType()->isPointerType())
+      VC = VariableCategory::Pointer;
 
   // Each variable can only be in one category: Value, Pointer, Reference.
   // Analysis can be controlled for every category.

diff --git a/clang-tools-extra/clang-tidy/misc/UseInternalLinkageCheck.cpp b/clang-tools-extra/clang-tidy/misc/UseInternalLinkageCheck.cpp
@@ -52,7 +52,7 @@ AST_MATCHER(FunctionDecl, hasBody) { return Node.hasBody(); }
 static bool isInMainFile(SourceLocation L, SourceManager &SM,
                          const FileExtensionsSet &HeaderFileExtensions) {
   for (;;) {
-    if (utils::isSpellingLocInHeaderFile(L, SM, HeaderFileExtensions))
+    if (utils::isExpansionLocInHeaderFile(L, SM, HeaderFileExtensions))
       return false;
     if (SM.isInMainFile(L))
       return true;

diff --git a/clang-tools-extra/clang-tidy/modernize/UseDefaultMemberInitCheck.cpp b/clang-tools-extra/clang-tidy/modernize/UseDefaultMemberInitCheck.cpp
@@ -194,6 +194,8 @@ void UseDefaultMemberInitCheck::storeOptions(
 }
 
 void UseDefaultMemberInitCheck::registerMatchers(MatchFinder *Finder) {
+  auto ConstExpRef = varDecl(anyOf(isConstexpr(), isStaticStorageClass()));
+
   auto InitBase =
       anyOf(stringLiteral(), characterLiteral(), integerLiteral(),
             unaryOperator(hasAnyOperatorName("+", "-"),
@@ -202,7 +204,7 @@ void UseDefaultMemberInitCheck::registerMatchers(MatchFinder *Finder) {
             unaryOperator(hasAnyOperatorName("+", "-"),
                           hasUnaryOperand(floatLiteral())),
             cxxBoolLiteral(), cxxNullPtrLiteralExpr(), implicitValueInitExpr(),
-            declRefExpr(to(enumConstantDecl())));
+            declRefExpr(to(anyOf(enumConstantDecl(), ConstExpRef))));
 
   auto Init =
       anyOf(initListExpr(anyOf(allOf(initCountIs(1), hasInit(0, InitBase)),

diff --git a/clang-tools-extra/clang-tidy/modernize/UseStdNumbersCheck.cpp b/clang-tools-extra/clang-tidy/modernize/UseStdNumbersCheck.cpp
@@ -91,8 +91,11 @@ struct MatchBuilder {
 
   auto matchMathCall(const StringRef FunctionName,
                      const Matcher<clang::Expr> ArgumentMatcher) const {
+    auto HasAnyPrecisionName = hasAnyName(
+        FunctionName, (FunctionName + "l").str(),
+        (FunctionName + "f").str()); // Support long double(l) and float(f).
     return expr(ignoreParenAndFloatingCasting(
-        callExpr(callee(functionDecl(hasName(FunctionName),
+        callExpr(callee(functionDecl(HasAnyPrecisionName,
                                      hasParameter(0, hasType(isArithmetic())))),
                  hasArgument(0, ArgumentMatcher))));
   }