[clang] [Clang] Separate implicit int conversion on negation sign to new diagnostic group (PR #139429)

Mon Jun 2 05:03:05 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-m68k-linux-cross` running on `suse-gary-m68k-cross` while building `clang` at step 5 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/27/builds/10928

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 5 (ninja check 1) failure: stage 1 checked (failure)
...
/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/include/clang/Sema/Sema.h:839:7: warning: ‘clang::Sema’ declared with greater visibility than the type of its field ‘clang::Sema::ExtVectorDecls’ [-Wattributes]
/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/include/clang/Sema/Sema.h:839:7: warning: ‘clang::Sema’ declared with greater visibility than the type of its field ‘clang::Sema::DelegatingCtorDecls’ [-Wattributes]
/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/include/clang/Serialization/ASTReader.h:245:16: warning: ‘virtual bool clang::ASTReaderListener::visitInputFile(llvm::StringRef, llvm::StringRef, bool, bool, bool)’ was hidden [-Woverloaded-virtual=]
  245 |   virtual bool visitInputFile(StringRef FilenameAsRequested, StringRef Filename,
      |                ^~~~~~~~~~~~~~
/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/include/clang/Serialization/ASTReader.h:306:8: note:   by ‘virtual bool clang::ChainedASTReaderListener::visitInputFile(llvm::StringRef, bool, bool, bool)’
  306 |   bool visitInputFile(StringRef Filename, bool isSystem,
      |        ^~~~~~~~~~~~~~
[261/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/MemberPointerTypeLoc.cpp.o
[262/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/AST/ASTImporterTest.cpp.o
FAILED: tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/AST/ASTImporterTest.cpp.o 
/usr/bin/c++ -DGTEST_HAS_RTTI=0 -DLLVM_BUILD_STATIC -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/unittests -I/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/unittests -I/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/include -I/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/include -I/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/include -I/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/llvm/include -I/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/unittests/Tooling -I/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/third-party/unittest/googletest/include -I/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/third-party/unittest/googlemock/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -fno-strict-aliasing -O3 -DNDEBUG -std=c++17  -Wno-variadic-macros -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -Wno-suggest-override -MD -MT tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/AST/ASTImporterTest.cpp.o -MF tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/AST/ASTImporterTest.cpp.o.d -o tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/AST/ASTImporterTest.cpp.o -c /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/unittests/AST/ASTImporterTest.cpp
c++: fatal error: Killed signal terminated program cc1plus
compilation terminated.
[263/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RefactoringActionRulesTest.cpp.o
[264/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/ReplacementsYamlTest.cpp.o
[265/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/Syntax/MutationsTest.cpp.o
[266/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/Attr.cpp.o
[267/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/InitListExprPostOrderNoQueue.cpp.o
[268/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/NestedNameSpecifiers.cpp.o
[269/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/ParenExpr.cpp.o
[270/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/TemplateArgumentLocTraverser.cpp.o
[271/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/TraversalScope.cpp.o
[272/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTestDeclVisitor.cpp.o
[273/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTestTypeLocVisitor.cpp.o
[274/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/Syntax/TreeTestBase.cpp.o
[275/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/InitListExprPostOrder.cpp.o
[276/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RangeSelectorTest.cpp.o
[277/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/ToolingTest.cpp.o
[278/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/Syntax/SynthesisTest.cpp.o
[279/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/ASTMatchers/ASTMatchersNodeTest.cpp.o
[280/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RefactoringCallbacksTest.cpp.o
[281/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/Syntax/TreeTest.cpp.o
[282/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/SourceCodeBuildersTest.cpp.o
[283/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/Syntax/BuildTreeTest.cpp.o
[284/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RefactoringTest.cpp.o
[285/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/SourceCodeTest.cpp.o
[286/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/StencilTest.cpp.o
[287/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTestPostOrderVisitor.cpp.o
[288/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/CallbacksCallExpr.cpp.o
[289/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/CallbacksBinaryOperator.cpp.o
[290/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/CallbacksCompoundAssignOperator.cpp.o
[291/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/CallbacksUnaryOperator.cpp.o
[292/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/RecursiveASTVisitorTests/CallbacksLeaf.cpp.o
[293/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/Tooling/TransformerTest.cpp.o
[294/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/ASTMatchers/ASTMatchersNarrowingTest.cpp.o
[295/412] Building CXX object tools/clang/unittests/CMakeFiles/AllClangUnitTests.dir/ASTMatchers/ASTMatchersTraversalTest.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/139429