Merge branch 'main' into flang_builtin-mods

Author: Meinersbur

.ci/monolithic-windows.sh

@@ -74,9 +74,7 @@ cmake -S "${MONOREPO_ROOT}"/llvm -B "${BUILD_DIR}" \
       -D MLIR_ENABLE_BINDINGS_PYTHON=ON \
       -D CMAKE_EXE_LINKER_FLAGS="/MANIFEST:NO" \
       -D CMAKE_MODULE_LINKER_FLAGS="/MANIFEST:NO" \
-      -D CMAKE_SHARED_LINKER_FLAGS="/MANIFEST:NO" \
-      -D LLVM_PARALLEL_COMPILE_JOBS=${MAX_PARALLEL_COMPILE_JOBS} \
-      -D LLVM_PARALLEL_LINK_JOBS=${MAX_PARALLEL_LINK_JOBS}
+      -D CMAKE_SHARED_LINKER_FLAGS="/MANIFEST:NO"
 
 echo "::endgroup::"
 echo "::group::ninja"

.github/workflows/premerge.yaml

@@ -110,8 +110,6 @@ jobs:
         if: ${{ steps.vars.outputs.windows-projects != '' }}
         shell: cmd
         run: |
-          set MAX_PARALLEL_COMPILE_JOBS=64
-          set MAX_PARALLEL_LINK_JOBS=64
           call C:\\BuildTools\\Common7\\Tools\\VsDevCmd.bat -arch=amd64 -host_arch=amd64
           bash .ci/monolithic-windows.sh "${{ steps.vars.outputs.windows-projects }}" "${{ steps.vars.outputs.windows-check-targets }}"
       - name: Upload Artifacts

clang-tools-extra/clang-tidy/ClangTidy.cpp

@@ -55,8 +55,9 @@ namespace clang::tidy {
 
 namespace {
 #if CLANG_TIDY_ENABLE_STATIC_ANALYZER
+#define ANALYZER_CHECK_NAME_PREFIX "clang-analyzer-"
 static constexpr llvm::StringLiteral AnalyzerCheckNamePrefix =
-    "clang-analyzer-";
+    ANALYZER_CHECK_NAME_PREFIX;
 
 class AnalyzerDiagnosticConsumer : public ento::PathDiagnosticConsumer {
 public:
@@ -669,18 +670,19 @@ getAllChecksAndOptions(bool AllowEnablingAnalyzerAlphaCheckers) {
     Buffer.append(AnalyzerCheck);
     Result.Checks.insert(Buffer);
   }
-  for (std::string OptionName : {
+
+  static constexpr llvm::StringLiteral OptionNames[] = {
 #define GET_CHECKER_OPTIONS
 #define CHECKER_OPTION(TYPE, CHECKER, OPTION_NAME, DESCRIPTION, DEFAULT,       \
                        RELEASE, HIDDEN)                                        \
-  Twine(AnalyzerCheckNamePrefix).concat(CHECKER ":" OPTION_NAME).str(),
+  ANALYZER_CHECK_NAME_PREFIX CHECKER ":" OPTION_NAME,
 
 #include "clang/StaticAnalyzer/Checkers/Checkers.inc"
 #undef CHECKER_OPTION
 #undef GET_CHECKER_OPTIONS
-       }) {
-    Result.Options.insert(OptionName);
-  }
+  };
+
+  Result.Options.insert_range(OptionNames);
 #endif // CLANG_TIDY_ENABLE_STATIC_ANALYZER
 
   Context.setOptionsCollector(&Result.Options);

clang-tools-extra/clang-tidy/modernize/PassByValueCheck.cpp

@@ -20,8 +20,21 @@ using namespace llvm;
 
 namespace clang::tidy::modernize {
 
+static bool isFirstFriendOfSecond(const CXXRecordDecl *Friend,
+                                  const CXXRecordDecl *Class) {
+  return llvm::any_of(
+      Class->friends(), [Friend](FriendDecl *FriendDecl) -> bool {
+        if (TypeSourceInfo *FriendTypeSource = FriendDecl->getFriendType()) {
+          const QualType FriendType = FriendTypeSource->getType();
+          return FriendType->getAsCXXRecordDecl() == Friend;
+        }
+        return false;
+      });
+}
+
 namespace {
-/// Matches move-constructible classes.
+/// Matches move-constructible classes whose constructor can be called inside
+/// a CXXRecordDecl with a bound ID.
 ///
 /// Given
 /// \code
@@ -32,15 +45,33 @@ namespace {
 ///     Bar(Bar &&) = deleted;
 ///     int a;
 ///   };
+///
+///   class Buz {
+///     Buz(Buz &&);
+///     int a;
+///     friend class Outer;
+///   };
+///
+///   class Outer {
+///   };
 /// \endcode
-/// recordDecl(isMoveConstructible())
-///   matches "Foo".
-AST_MATCHER(CXXRecordDecl, isMoveConstructible) {
-  for (const CXXConstructorDecl *Ctor : Node.ctors()) {
-    if (Ctor->isMoveConstructor() && !Ctor->isDeleted())
-      return true;
-  }
-  return false;
+/// recordDecl(isMoveConstructibleInBoundCXXRecordDecl("Outer"))
+///   matches "Foo", "Buz".
+AST_MATCHER_P(CXXRecordDecl, isMoveConstructibleInBoundCXXRecordDecl, StringRef,
+              RecordDeclID) {
+  return Builder->removeBindings(
+      [this,
+       &Node](const ast_matchers::internal::BoundNodesMap &Nodes) -> bool {
+        const auto *BoundClass =
+            Nodes.getNode(this->RecordDeclID).get<CXXRecordDecl>();
+        for (const CXXConstructorDecl *Ctor : Node.ctors()) {
+          if (Ctor->isMoveConstructor() && !Ctor->isDeleted() &&
+              (Ctor->getAccess() == AS_public ||
+               (BoundClass && isFirstFriendOfSecond(BoundClass, &Node))))
+            return false;
+        }
+        return true;
+      });
 }
 } // namespace
 
@@ -202,6 +233,7 @@ void PassByValueCheck::registerMatchers(MatchFinder *Finder) {
       traverse(
           TK_AsIs,
           cxxConstructorDecl(
+              ofClass(cxxRecordDecl().bind("outer")),
               forEachConstructorInitializer(
                   cxxCtorInitializer(
                       unless(isBaseInitializer()),
@@ -225,8 +257,9 @@ void PassByValueCheck::registerMatchers(MatchFinder *Finder) {
                                   .bind("Param"))))),
                           hasDeclaration(cxxConstructorDecl(
                               isCopyConstructor(), unless(isDeleted()),
-                              hasDeclContext(
-                                  cxxRecordDecl(isMoveConstructible())))))))
+                              hasDeclContext(cxxRecordDecl(
+                                  isMoveConstructibleInBoundCXXRecordDecl(
+                                      "outer"))))))))
                       .bind("Initializer")))
               .bind("Ctor")),
       this);

clang-tools-extra/docs/ReleaseNotes.rst

@@ -281,6 +281,10 @@ Changes in existing checks
   excluding variables with ``thread_local`` storage class specifier from being
   matched.
 
+- Improved :doc:`modernize-pass-by-value
+  <clang-tidy/checks/modernize/pass-by-value>` check by fixing false positives
+  when class passed by const-reference had a private move constructor.
+
 - Improved :doc:`modernize-type-traits
   <clang-tidy/checks/modernize/type-traits>` check by detecting more type traits.
 

clang-tools-extra/test/clang-tidy/checkers/modernize/pass-by-value.cpp

@@ -252,3 +252,62 @@ struct W3 {
   W3(W1 &&, Movable &&M);
   Movable M;
 };
+
+struct ProtectedMovable {
+  ProtectedMovable() = default;
+  ProtectedMovable(const ProtectedMovable &) {}
+protected:
+  ProtectedMovable(ProtectedMovable &&) {}
+};
+
+struct PrivateMovable {
+  PrivateMovable() = default;
+  PrivateMovable(const PrivateMovable &) {}
+private:
+  PrivateMovable(PrivateMovable &&) {}
+
+  friend struct X5;
+};
+
+struct InheritedProtectedMovable : ProtectedMovable {
+  InheritedProtectedMovable() = default;
+  InheritedProtectedMovable(const InheritedProtectedMovable &) {}
+  InheritedProtectedMovable(InheritedProtectedMovable &&) {}
+};
+
+struct InheritedPrivateMovable : PrivateMovable {
+  InheritedPrivateMovable() = default;
+  InheritedPrivateMovable(const InheritedPrivateMovable &) {}
+  InheritedPrivateMovable(InheritedPrivateMovable &&) {}
+};
+
+struct X1 {
+  X1(const ProtectedMovable &M) : M(M) {}
+  ProtectedMovable M;
+};
+
+struct X2 {
+  X2(const PrivateMovable &M) : M(M) {}
+  PrivateMovable M;
+};
+
+struct X3 {
+  X3(const InheritedProtectedMovable &M) : M(M) {}
+  // CHECK-MESSAGES: :[[@LINE-1]]:6: warning: pass by value and use std::move
+  // CHECK-FIXES: X3(InheritedProtectedMovable M) : M(std::move(M)) {}
+  InheritedProtectedMovable M;
+};
+
+struct X4 {
+  X4(const InheritedPrivateMovable &M) : M(M) {}
+  // CHECK-MESSAGES: :[[@LINE-1]]:6: warning: pass by value and use std::move
+  // CHECK-FIXES: X4(InheritedPrivateMovable M) : M(std::move(M)) {}
+  InheritedPrivateMovable M;
+};
+
+struct X5 {
+  X5(const PrivateMovable &M) : M(M) {}
+  // CHECK-MESSAGES: :[[@LINE-1]]:6: warning: pass by value and use std::move
+  // CHECK-FIXES: X5(PrivateMovable M) : M(std::move(M)) {}
+  PrivateMovable M;
+};

clang/Maintainers.rst

@@ -59,6 +59,8 @@ Clang MLIR generation
 | Bruno Cardoso Lopes
 | bruno.cardoso\@gmail.com (email), sonicsprawl (Discord), bcardosolopes (GitHub)
 
+| Henrich Lauko
+| henrich.lau\@gmail.com  (email), henrich.lauko (Discord), xlauko (GitHub)
 
 Analysis & CFG
 ~~~~~~~~~~~~~~

clang/cmake/caches/Fuchsia-stage2.cmake

@@ -362,7 +362,6 @@ foreach(target armv6m-none-eabi;armv7m-none-eabi;armv7em-none-eabi;armv8m.main-n
   set(RUNTIMES_${target}_LIBCXX_ENABLE_SHARED OFF CACHE BOOL "")
   set(RUNTIMES_${target}_LIBCXX_ENABLE_STATIC ON CACHE BOOL "")
   set(RUNTIMES_${target}_LIBCXX_SHARED_OUTPUT_NAME "c++-shared" CACHE STRING "")
-  set(RUNTIMES_${target}_LIBCXX_LIBC "llvm-libc" CACHE STRING "")
   set(RUNTIMES_${target}_LIBCXX_ENABLE_FILESYSTEM OFF CACHE BOOL "")
   set(RUNTIMES_${target}_LIBCXX_ENABLE_RANDOM_DEVICE OFF CACHE BOOL "")
   set(RUNTIMES_${target}_LIBCXX_ENABLE_LOCALIZATION OFF CACHE BOOL "")
@@ -376,6 +375,7 @@ foreach(target armv6m-none-eabi;armv7m-none-eabi;armv7em-none-eabi;armv8m.main-n
   set(RUNTIMES_${target}_LLVM_INCLUDE_TESTS OFF CACHE BOOL "")
   set(RUNTIMES_${target}_LLVM_ENABLE_ASSERTIONS OFF CACHE BOOL "")
   set(RUNTIMES_${target}_LLVM_ENABLE_RUNTIMES "libc;libcxx" CACHE STRING "")
+  set(RUNTIMES_${target}_RUNTIMES_USE_LIBC "llvm-libc" CACHE STRING "")
 
   # Enable FatLTO for baremetal runtimes
   set(RUNTIMES_${target}_LLVM_ENABLE_LTO OFF CACHE BOOL "")
@@ -417,7 +417,6 @@ foreach(target riscv32-unknown-elf)
   set(RUNTIMES_${target}_LIBCXX_ENABLE_SHARED OFF CACHE BOOL "")
   set(RUNTIMES_${target}_LIBCXX_ENABLE_STATIC ON CACHE BOOL "")
   set(RUNTIMES_${target}_LIBCXX_SHARED_OUTPUT_NAME "c++-shared" CACHE STRING "")
-  set(RUNTIMES_${target}_LIBCXX_LIBC "llvm-libc" CACHE STRING "")
   set(RUNTIMES_${target}_LIBCXX_ENABLE_FILESYSTEM OFF CACHE BOOL "")
   set(RUNTIMES_${target}_LIBCXX_ENABLE_RANDOM_DEVICE OFF CACHE BOOL "")
   set(RUNTIMES_${target}_LIBCXX_ENABLE_LOCALIZATION OFF CACHE BOOL "")
@@ -431,6 +430,7 @@ foreach(target riscv32-unknown-elf)
   set(RUNTIMES_${target}_LLVM_INCLUDE_TESTS OFF CACHE BOOL "")
   set(RUNTIMES_${target}_LLVM_ENABLE_ASSERTIONS OFF CACHE BOOL "")
   set(RUNTIMES_${target}_LLVM_ENABLE_RUNTIMES "libc;libcxx" CACHE STRING "")
+  set(RUNTIMES_${target}_RUNTIMES_USE_LIBC "llvm-libc" CACHE STRING "")
 
   # Enable FatLTO for baremetal runtimes
   set(RUNTIMES_${target}_LLVM_ENABLE_LTO OFF CACHE BOOL "")

clang/docs/ReleaseNotes.rst

@@ -145,6 +145,8 @@ C++20 Feature Support
 - Fixed a crash with a defaulted spaceship (``<=>``) operator when the class
   contains a member declaration of vector type. Vector types cannot yet be
   compared directly, so this causes the operator to be deleted. (#GH137452)
+- Implement constant evaluation of lambdas that capture structured bindings.
+  (#GH145956)
 
 C++17 Feature Support
 ^^^^^^^^^^^^^^^^^^^^^
@@ -660,6 +662,10 @@ Improvements to Clang's diagnostics
   #GH142457, #GH139913, #GH138850, #GH137867, #GH137860, #GH107840, #GH93308,
   #GH69470, #GH59391, #GH58172, #GH46215, #GH45915, #GH45891, #GH44490,
   #GH36703, #GH32903, #GH23312, #GH69874.
+  
+- Clang no longer emits a spurious -Wdangling-gsl warning in C++23 when
+  iterating over an element of a temporary container in a range-based
+  for loop.(#GH109793, #GH145164)
 
 - Fixed false positives in ``-Wformat-truncation`` and ``-Wformat-overflow``
   diagnostics when floating-point numbers had both width field and plus or space
@@ -922,12 +928,17 @@ Bug Fixes to C++ Support
 - Fixed a crash when constant evaluating some explicit object member assignment operators. (#GH142835)
 - Fixed an access checking bug when substituting into concepts (#GH115838)
 - Fix a bug where private access specifier of overloaded function not respected. (#GH107629)
+- Correctly handles calling an explicit object member function template overload set
+  through its address (``(&Foo::bar<baz>)()``).
 - Correctly handle allocations in the condition of a ``if constexpr``.(#GH120197) (#GH134820)
 - Fixed a crash when handling invalid member using-declaration in C++20+ mode. (#GH63254)
+- Fixed parsing of lambda expressions that appear after ``*`` or ``&`` in contexts where a declaration can appear. (#GH63880)
+- Fix name lookup in lambda appearing in the body of a requires expression. (#GH147650)
 - Fix a crash when trying to instantiate an ambiguous specialization. (#GH51866)
 - Improved handling of variables with ``consteval`` constructors, to
   consistently treat the initializer as manifestly constant-evaluated.
   (#GH135281)
+- Fix a crash in the presence of invalid base classes. (#GH147186)
 
 Bug Fixes to AST Handling
 ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1228,6 +1239,7 @@ OpenMP Support
 - Fixed mapping of arrays of structs containing nested structs with user defined
   mappers, by using compiler-generated default mappers for the outer structs for
   such maps.
+- Deprecation warning has been emitted for deprecated delimited form of ``declare target``.
 
 Improvements
 ^^^^^^^^^^^^

clang/include/clang/AST/Decl.h

@@ -1090,6 +1090,11 @@ class VarDecl : public DeclaratorDecl, public Redeclarable<VarDecl> {
 
     LLVM_PREFERRED_TYPE(bool)
     unsigned IsCXXCondDecl : 1;
+
+    /// Whether this variable is the implicit __range variable in a for-range
+    /// loop.
+    LLVM_PREFERRED_TYPE(bool)
+    unsigned IsCXXForRangeImplicitVar : 1;
   };
 
   union {
@@ -1591,6 +1596,19 @@ class VarDecl : public DeclaratorDecl, public Redeclarable<VarDecl> {
     NonParmVarDeclBits.IsCXXCondDecl = true;
   }
 
+  /// Whether this variable is the implicit '__range' variable in C++
+  /// range-based for loops.
+  bool isCXXForRangeImplicitVar() const {
+    return isa<ParmVarDecl>(this) ? false
+                                  : NonParmVarDeclBits.IsCXXForRangeImplicitVar;
+  }
+
+  void setCXXForRangeImplicitVar(bool FRV) {
+    assert(!isa<ParmVarDecl>(this) &&
+           "Cannot set IsCXXForRangeImplicitVar on ParmVarDecl");
+    NonParmVarDeclBits.IsCXXForRangeImplicitVar = FRV;
+  }
+
   /// Determines if this variable's alignment is dependent.
   bool hasDependentAlignment() const;