Merge branch 'main' into vplan-cost-forced-instr-cost-interleave

Author: fhahn

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

@@ -223,6 +223,9 @@ jobs:
           source .venv/bin/activate
           python -m pip install psutil
           xcrun bash libcxx/utils/ci/run-buildbot ${{ matrix.config }}
+        env:
+          CC: clang
+          CXX: clang++
       - uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4 # v5.0.0
         if: always()  # Upload artifacts even if the build or test suite fails
         with:
@@ -241,16 +244,16 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        - { config: clang-cl-dll, mingw: false }
-        - { config: clang-cl-static, mingw: false }
-        - { config: clang-cl-no-vcruntime, mingw: false }
-        - { config: clang-cl-debug, mingw: false }
-        - { config: clang-cl-static-crt, mingw: false }
-        - { config: mingw-dll, mingw: true }
-        - { config: mingw-static, mingw: true }
-        - { config: mingw-dll-i686, mingw: true }
-        - { config: mingw-incomplete-sysroot, mingw: true }
-        - { config: mingw-static, mingw: true, runner: windows-11-arm }
+        - { config: clang-cl-dll,             mingw: false, cc: clang-cl, cxx: clang-cl }
+        - { config: clang-cl-static,          mingw: false, cc: clang-cl, cxx: clang-cl }
+        - { config: clang-cl-no-vcruntime,    mingw: false, cc: clang-cl, cxx: clang-cl }
+        - { config: clang-cl-debug,           mingw: false, cc: clang-cl, cxx: clang-cl }
+        - { config: clang-cl-static-crt,      mingw: false, cc: clang-cl, cxx: clang-cl }
+        - { config: mingw-dll,                mingw: true,  cc: cc,       cxx: c++ }
+        - { config: mingw-dll,                mingw: true,  cc: i686-w64-mingw32-clang, cxx: i686-w64-mingw32-clang++ }
+        - { config: mingw-static,             mingw: true,  cc: cc,       cxx: c++ }
+        - { config: mingw-incomplete-sysroot, mingw: true,  cc: cc,       cxx: c++ }
+        - { config: mingw-static,             mingw: true,  cc: cc,       cxx: c++, runner: windows-11-arm }
     runs-on: ${{ matrix.runner != '' && matrix.runner || 'windows-2022' }}
     steps:
       - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
@@ -286,5 +289,7 @@ jobs:
         run: |
           echo "c:\Program Files\LLVM\bin" | Out-File -FilePath $Env:GITHUB_PATH -Encoding utf8 -Append
       - name: Build and test
-        run: |
-          bash libcxx/utils/ci/run-buildbot ${{ matrix.config }}
+        run: bash libcxx/utils/ci/run-buildbot ${{ matrix.config }}
+        env:
+          CC: ${{ matrix.cc }}
+          CXX: ${{ matrix.cxx }}

.github/workflows/libcxx-check-generated-files.yml

@@ -22,3 +22,6 @@ jobs:
 
       - name: Check generated files
         run: libcxx/utils/ci/run-buildbot check-generated-output
+        env:
+          CC: cc
+          CXX: c++

bolt/docs/BAT.md

@@ -61,6 +61,7 @@ Functions table:
 
 ### Functions table
 Hot and cold functions tables share the encoding except differences marked below.
+
 Header:
 | Entry  | Encoding | Description |
 | ------ | ----- | ----------- |

clang-tools-extra/clang-tidy/ExpandModularHeadersPPCallbacks.h

@@ -137,7 +137,7 @@ class ExpandModularHeadersPPCallbacks : public PPCallbacks {
   std::unique_ptr<Preprocessor> PP;
   bool EnteredMainFile = false;
   bool StartedLexing = false;
-  Token CurrentToken;
+  Token CurrentToken = Token();
 };
 
 } // namespace tooling

clang-tools-extra/clang-tidy/bugprone/FloatLoopCounterCheck.cpp

@@ -31,6 +31,7 @@ void FloatLoopCounterCheck::registerMatchers(MatchFinder *Finder) {
 
 void FloatLoopCounterCheck::check(const MatchFinder::MatchResult &Result) {
   const auto *FS = Result.Nodes.getNodeAs<ForStmt>("for");
+  assert(FS && "FS should not be null");
 
   diag(FS->getInc()->getBeginLoc(), "loop induction expression should not have "
                                     "floating-point type")

clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsAvoidUncheckedContainerAccessCheck.cpp

@@ -176,7 +176,7 @@ void ProBoundsAvoidUncheckedContainerAccessCheck::check(
     }
   } else if (const auto *MCE = dyn_cast<CXXMemberCallExpr>(MatchedExpr)) {
     // Case: a.operator[](i) or a->operator[](i)
-    const auto *Callee = dyn_cast<MemberExpr>(MCE->getCallee());
+    const auto *Callee = cast<MemberExpr>(MCE->getCallee());
 
     if (FixMode == At) {
       // Cases: a.operator[](i) => a.at(i) and a->operator[](i) => a->at(i)

clang/docs/ReleaseNotes.rst

@@ -563,6 +563,7 @@ Bug Fixes to C++ Support
 - Fix for clang incorrectly rejecting the default construction of a union with
   nontrivial member when another member has an initializer. (#GH81774)
 - Fixed a template depth issue when parsing lambdas inside a type constraint. (#GH162092)
+- Fix the support of zero-length arrays in SFINAE context. (#GH170040)
 - Diagnose unresolved overload sets in non-dependent compound requirements. (#GH51246) (#GH97753)
 - Fix a crash when extracting unavailable member type from alias in template deduction. (#GH165560)
 - Fix incorrect diagnostics for lambdas with init-captures inside braced initializers. (#GH163498)
@@ -641,6 +642,9 @@ RISC-V Support
 - `__GCC_CONSTRUCTIVE_SIZE` and `__GCC_DESTRUCTIVE_SIZE` are changed to 64. These values are
   unstable according to `Clang's documentation <https://clang.llvm.org/docs/LanguageExtensions.html#gcc-destructive-size-and-gcc-constructive-size>`_.
 
+- DWARF fission is now compatible with linker relaxations, allowing `-gsplit-dwarf` and `-mrelax`
+  to be used together when building for the RISC-V platform.
+
 CUDA/HIP Language Changes
 ^^^^^^^^^^^^^^^^^^^^^^^^^
 

clang/docs/StandardCPlusPlusModules.rst

@@ -28,7 +28,10 @@ Standard C++ Named modules
 In order to better understand the compiler's behavior, it is helpful to
 understand some terms and definitions for readers who are not familiar with the
 C++ feature. This document is not a tutorial on C++; it only introduces
-necessary concepts to better understand use of modules in a project.
+necessary concepts to better understand use of modules in a project. Other
+resources at `Wikipedia <https://en.wikipedia.org/wiki/Modules_(C++)>`_ and
+`cppreference <https://en.cppreference.com/w/cpp/language/modules.html>`_ can
+provide more background information about modules if needed.
 
 Background and terminology
 --------------------------

clang/include/clang/AST/ASTConsumer.h

@@ -27,6 +27,7 @@ namespace clang {
   class VarDecl;
   class FunctionDecl;
   class ImportDecl;
+  class OpenACCRoutineDecl;
 
 /// ASTConsumer - This is an abstract interface that should be implemented by
 /// clients that read ASTs.  This abstraction layer allows the client to be
@@ -116,6 +117,11 @@ class ASTConsumer {
   // variable has been instantiated.
   virtual void HandleCXXStaticMemberVarInstantiation(VarDecl *D) {}
 
+  /// Callback to handle the end-of-translation unit attachment of OpenACC
+  /// routine declaration information.
+  virtual void HandleOpenACCRoutineReference(const FunctionDecl *FD,
+                                             const OpenACCRoutineDecl *RD) {}
+
   /// Callback involved at the end of a translation unit to
   /// notify the consumer that a vtable for the given C++ class is
   /// required.

clang/include/clang/Basic/Attr.td

@@ -5172,6 +5172,14 @@ def HLSLVkConstantId : InheritableAttr {
   let Documentation = [VkConstantIdDocs];
 }
 
+def HLSLVkLocation : HLSLAnnotationAttr {
+  let Spellings = [CXX11<"vk", "location">];
+  let Args = [IntArgument<"Location">];
+  let Subjects = SubjectList<[ParmVar, Field, Function], ErrorDiag>;
+  let LangOpts = [HLSL];
+  let Documentation = [HLSLVkLocationDocs];
+}
+
 def RandomizeLayout : InheritableAttr {
   let Spellings = [GCC<"randomize_layout">];
   let Subjects = SubjectList<[Record]>;