Merge branch 'main' into fix/fixit-unknown-attributes

Author: a-tarasyuk

.github/workflows/libcxx-build-and-test.yaml

@@ -52,8 +52,8 @@ jobs:
         cxx: [ 'clang++-21' ]
         include:
           - config: 'generic-gcc'
-            cc: 'gcc-14'
-            cxx: 'g++-14'
+            cc: 'gcc-15'
+            cxx: 'g++-15'
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: ${{ matrix.config }}.${{ matrix.cxx }}
@@ -92,8 +92,8 @@ jobs:
         cxx: [ 'clang++-21' ]
         include:
           - config: 'generic-gcc-cxx11'
-            cc: 'gcc-14'
-            cxx: 'g++-14'
+            cc: 'gcc-15'
+            cxx: 'g++-15'
           - config: 'generic-cxx26'
             cc: 'clang-20'
             cxx: 'clang++-20'

clang-tools-extra/clangd/refactor/Rename.cpp

@@ -1308,7 +1308,7 @@ getMappedRanges(ArrayRef<Range> Indexed, ArrayRef<SymbolRange> Lexed) {
     return std::nullopt;
   }
   // Fast check for the special subset case.
-  if (std::includes(Indexed.begin(), Indexed.end(), Lexed.begin(), Lexed.end()))
+  if (llvm::includes(Indexed, Lexed))
     return Lexed.vec();
 
   std::vector<size_t> Best;

clang/docs/ReleaseNotes.rst

@@ -694,6 +694,7 @@ Bug Fixes in This Version
 - Constant evaluation now correctly runs the destructor of a variable declared in
   the second clause of a C-style ``for`` loop. (#GH139818)
 - Fixed a bug with constexpr evaluation for structs containing unions in case of C++ modules. (#GH143168)
+- Fixed incorrect token location when emitting diagnostics for tokens expanded from macros. (#GH143216)
 
 Bug Fixes to Compiler Builtins
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1102,6 +1103,9 @@ OpenMP Support
 - An error is now emitted when OpenMP ``collapse`` and ``ordered`` clauses have
   an argument larger than what can fit within a 64-bit integer.
 - Added support for private variable reduction.
+- 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.
 
 Improvements
 ^^^^^^^^^^^^

clang/include/clang/AST/ASTContext.h

@@ -488,8 +488,8 @@ class ASTContext : public RefCountedBase<ASTContext> {
   /// if possible.
   ///
   /// Not serialized intentionally.
-  llvm::StringMap<const Module *> PrimaryModuleNameMap;
-  llvm::DenseMap<const Module *, const Module *> SameModuleLookupSet;
+  mutable llvm::StringMap<const Module *> PrimaryModuleNameMap;
+  mutable llvm::DenseMap<const Module *, const Module *> SameModuleLookupSet;
 
   static constexpr unsigned ConstantArrayTypesLog2InitSize = 8;
   static constexpr unsigned GeneralTypesLog2InitSize = 9;
@@ -1151,7 +1151,7 @@ class ASTContext : public RefCountedBase<ASTContext> {
   ///
   /// FIXME: The signature may be confusing since `clang::Module` means to
   /// a module fragment or a module unit but not a C++20 module.
-  bool isInSameModule(const Module *M1, const Module *M2);
+  bool isInSameModule(const Module *M1, const Module *M2) const;
 
   TranslationUnitDecl *getTranslationUnitDecl() const {
     return TUDecl->getMostRecentDecl();

clang/include/clang/AST/DeclBase.h

@@ -646,6 +646,10 @@ class alignas(8) Decl {
     return getModuleOwnershipKind() == ModuleOwnershipKind::ModulePrivate;
   }
 
+  /// Whether this declaration was a local declaration to a C++20
+  /// named module.
+  bool isModuleLocal() const;
+
   /// Whether this declaration was exported in a lexical context.
   /// e.g.:
   ///

clang/include/clang/Basic/Attr.td

@@ -4630,6 +4630,7 @@ def OMPDeclareVariant : InheritableAttr {
     OMPTraitInfoArgument<"TraitInfos">,
     VariadicExprArgument<"AdjustArgsNothing">,
     VariadicExprArgument<"AdjustArgsNeedDevicePtr">,
+    VariadicExprArgument<"AdjustArgsNeedDeviceAddr">,
     VariadicOMPInteropInfoArgument<"AppendArgs">,
   ];
   let AdditionalMembers = [{

clang/include/clang/Basic/Diagnostic.h

@@ -18,6 +18,7 @@
 #include "clang/Basic/DiagnosticOptions.h"
 #include "clang/Basic/SourceLocation.h"
 #include "clang/Basic/Specifiers.h"
+#include "clang/Basic/UnsignedOrNone.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/FunctionExtras.h"
@@ -49,6 +50,7 @@ class FileSystem;
 namespace clang {
 
 class DeclContext;
+class Diagnostic;
 class DiagnosticBuilder;
 class DiagnosticConsumer;
 class IdentifierInfo;
@@ -228,6 +230,8 @@ class DiagStorageAllocator {
 class DiagnosticsEngine : public RefCountedBase<DiagnosticsEngine> {
 public:
   /// The level of the diagnostic, after it has been through mapping.
+  // FIXME: Make this an alias for DiagnosticIDs::Level as soon as
+  // we can use 'using enum'.
   enum Level {
     Ignored = DiagnosticIDs::Ignored,
     Note = DiagnosticIDs::Note,
@@ -420,10 +424,13 @@ class DiagnosticsEngine : public RefCountedBase<DiagnosticsEngine> {
     bool empty() const { return Files.empty(); }
 
     /// Clear out this map.
-    void clear() {
+    void clear(bool Soft) {
+      // Just clear the cache when in soft mode.
       Files.clear();
-      FirstDiagState = CurDiagState = nullptr;
-      CurDiagStateLoc = SourceLocation();
+      if (!Soft) {
+        FirstDiagState = CurDiagState = nullptr;
+        CurDiagStateLoc = SourceLocation();
+      }
     }
 
     /// Produce a debugging dump of the diagnostic state.
@@ -532,7 +539,7 @@ class DiagnosticsEngine : public RefCountedBase<DiagnosticsEngine> {
   ///
   /// This is used to emit continuation diagnostics with the same level as the
   /// diagnostic that they follow.
-  DiagnosticIDs::Level LastDiagLevel;
+  Level LastDiagLevel;
 
   /// Number of warnings reported
   unsigned NumWarnings;
@@ -777,18 +784,16 @@ class DiagnosticsEngine : public RefCountedBase<DiagnosticsEngine> {
   /// the middle of another diagnostic.
   ///
   /// This can be used by clients who suppress diagnostics themselves.
-  void setLastDiagnosticIgnored(bool Ignored) {
-    if (LastDiagLevel == DiagnosticIDs::Fatal)
+  void setLastDiagnosticIgnored(bool IsIgnored) {
+    if (LastDiagLevel == Fatal)
       FatalErrorOccurred = true;
-    LastDiagLevel = Ignored ? DiagnosticIDs::Ignored : DiagnosticIDs::Warning;
+    LastDiagLevel = IsIgnored ? Ignored : Warning;
   }
 
   /// Determine whether the previous diagnostic was ignored. This can
   /// be used by clients that want to determine whether notes attached to a
   /// diagnostic will be suppressed.
-  bool isLastDiagnosticIgnored() const {
-    return LastDiagLevel == DiagnosticIDs::Ignored;
-  }
+  bool isLastDiagnosticIgnored() const { return LastDiagLevel == Ignored; }
 
   /// Controls whether otherwise-unmapped extension diagnostics are
   /// mapped onto ignore/warning/error.
@@ -918,6 +923,10 @@ class DiagnosticsEngine : public RefCountedBase<DiagnosticsEngine> {
   /// Reset the state of the diagnostic object to its initial configuration.
   /// \param[in] soft - if true, doesn't reset the diagnostic mappings and state
   void Reset(bool soft = false);
+  /// We keep a cache of FileIDs for diagnostics mapped by pragmas. These might
+  /// get invalidated when diagnostics engine is shared across different
+  /// compilations. Provide users with a way to reset that.
+  void ResetPragmas();
 
   //===--------------------------------------------------------------------===//
   // DiagnosticsEngine classification and reporting interfaces.
@@ -1024,9 +1033,10 @@ class DiagnosticsEngine : public RefCountedBase<DiagnosticsEngine> {
   /// Used to report a diagnostic that is finally fully formed.
   ///
   /// \returns true if the diagnostic was emitted, false if it was suppressed.
-  bool ProcessDiag(const DiagnosticBuilder &DiagBuilder) {
-    return Diags->ProcessDiag(*this, DiagBuilder);
-  }
+  bool ProcessDiag(const DiagnosticBuilder &DiagBuilder);
+
+  /// Forward a diagnostic to the DiagnosticConsumer.
+  void Report(Level DiagLevel, const Diagnostic &Info);
 
   /// @name Diagnostic Emission
   /// @{

clang/include/clang/Basic/DiagnosticIDs.h

@@ -483,18 +483,6 @@ class DiagnosticIDs : public RefCountedBase<DiagnosticIDs> {
 
   Class getDiagClass(unsigned DiagID) const;
 
-  /// Used to report a diagnostic that is finally fully formed.
-  ///
-  /// \returns \c true if the diagnostic was emitted, \c false if it was
-  /// suppressed.
-  bool ProcessDiag(DiagnosticsEngine &Diag,
-                   const DiagnosticBuilder &DiagBuilder) const;
-
-  /// Used to emit a diagnostic that is finally fully formed,
-  /// ignoring suppression.
-  void EmitDiag(DiagnosticsEngine &Diag, const DiagnosticBuilder &DiagBuilder,
-                Level DiagLevel) const;
-
   /// Whether the diagnostic may leave the AST in a state where some
   /// invariants can break.
   bool isUnrecoverable(unsigned DiagID) const;

clang/include/clang/Basic/DiagnosticParseKinds.td

@@ -1581,8 +1581,10 @@ def err_omp_unexpected_append_op : Error<
   "unexpected operation specified in 'append_args' clause, expected 'interop'">;
 def err_omp_unexpected_execution_modifier : Error<
   "unexpected 'execution' modifier in non-executable context">;
-def err_omp_unknown_adjust_args_op : Error<
-  "incorrect adjust_args type, expected 'need_device_ptr' or 'nothing'">;
+def err_omp_unknown_adjust_args_op
+    : Error<
+          "incorrect 'adjust_args' type, expected 'need_device_ptr'%select{|, "
+          "'need_device_addr',}0 or 'nothing'">;
 def err_omp_declare_variant_wrong_clause : Error<
   "expected %select{'match'|'match', 'adjust_args', or 'append_args'}0 clause "
   "on 'omp declare variant' directive">;

clang/include/clang/Basic/OpenMPKinds.def

@@ -214,6 +214,7 @@ OPENMP_ORIGINAL_SHARING_MODIFIER(default)
 // Adjust-op kinds for the 'adjust_args' clause.
 OPENMP_ADJUST_ARGS_KIND(nothing)
 OPENMP_ADJUST_ARGS_KIND(need_device_ptr)
+OPENMP_ADJUST_ARGS_KIND(need_device_addr)
 
 // Binding kinds for the 'bind' clause.
 OPENMP_BIND_KIND(teams)