[clang] [OpenACC][NFC] AST changes for Reduction combiner (PR #162573)

Thu Oct 9 13:56:42 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 4 "build stage 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/27/builds/17287

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

```
Step 4 (build stage 1) failure: 'ninja' (failure)
...
[78/450] Building CXX object tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/CheckSecuritySyntaxOnly.cpp.o
[79/450] Building CXX object tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/DirectIvarAssignment.cpp.o
[80/450] Building CXX object tools/clang/lib/Serialization/CMakeFiles/obj.clangSerialization.dir/ASTReaderDecl.cpp.o
[81/450] Building CXX object tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaConcept.cpp.o
[82/450] Building CXX object tools/clang/lib/Index/CMakeFiles/obj.clangIndex.dir/IndexBody.cpp.o
[83/450] Building CXX object tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/IvarInvalidationChecker.cpp.o
[84/450] Building CXX object tools/clang/lib/Index/CMakeFiles/obj.clangIndex.dir/IndexTypeSourceInfo.cpp.o
[85/450] Building CXX object tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/WebKit/ASTUtils.cpp.o
[86/450] Building CXX object tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/WebKit/PtrTypesSemantics.cpp.o
[87/450] Building CXX object tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaExpr.cpp.o
FAILED: tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaExpr.cpp.o 
/usr/bin/c++ -DCLANG_EXPORTS -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -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/lib/Sema -I/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/lib/Sema -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 -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-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-dangling-reference -Wno-redundant-move -Wno-pessimizing-move -Wno-array-bounds -Wno-stringop-overread -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -Wno-pass-failed -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaExpr.cpp.o -MF tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaExpr.cpp.o.d -o tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaExpr.cpp.o -c /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/lib/Sema/SemaExpr.cpp
c++: fatal error: Killed signal terminated program cc1plus
compilation terminated.
[88/450] Building CXX object tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/MallocSizeofChecker.cpp.o
[89/450] Building CXX object tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/LLVMConventionsChecker.cpp.o
[90/450] Building CXX object tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/ObjCContainersASTChecker.cpp.o
[91/450] Building CXX object tools/clang/lib/Frontend/CMakeFiles/obj.clangFrontend.dir/ASTConsumers.cpp.o
[92/450] Building CXX object tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaTemplateInstantiateDecl.cpp.o
[93/450] Building CXX object tools/clang/lib/Frontend/CMakeFiles/obj.clangFrontend.dir/InterfaceStubFunctionsConsumer.cpp.o
[94/450] Building CXX object tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/WebKit/RefCntblBaseVirtualDtorChecker.cpp.o
[95/450] Building CXX object tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaSYCL.cpp.o
[96/450] Building CXX object tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaTemplateInstantiate.cpp.o
In file included from /usr/include/c++/14/cassert:44,
                 from /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/include/clang/Sema/Initialization.h:35,
                 from /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/lib/Sema/SemaTemplateInstantiate.cpp:31:
/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/lib/Sema/SemaTemplateInstantiate.cpp: In member function ‘clang::concepts::NestedRequirement* {anonymous}::TemplateInstantiator::TransformNestedRequirement(clang::concepts::NestedRequirement*)’:
/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/lib/Sema/SemaTemplateInstantiate.cpp:2866:49: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
 2866 |     assert(!Success || !Trap.hasErrorOccurred() &&
      |                        ~~~~~~~~~~~~~~~~~~~~~~~~~^~
 2867 |                            "Substitution failures must be handled "
      |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 2868 |                            "by CheckConstraintSatisfaction.");
      |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
At global scope:
cc1plus: note: unrecognized command-line option ‘-Wno-pass-failed’ may have been intended to silence earlier diagnostics
[97/450] Building CXX object tools/clang/lib/Tooling/Refactoring/CMakeFiles/obj.clangToolingRefactoring.dir/Rename/RenamingAction.cpp.o
[98/450] Building CXX object tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/LocalizationChecker.cpp.o
[99/450] Building CXX object tools/clang/lib/AST/CMakeFiles/obj.clangAST.dir/ASTContext.cpp.o
[100/450] Building CXX object tools/clang/tools/extra/clang-tidy/utils/CMakeFiles/obj.clangTidyUtils.dir/ASTUtils.cpp.o
[101/450] Building CXX object tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaDecl.cpp.o
[102/450] Building CXX object tools/clang/lib/Analysis/FlowSensitive/CMakeFiles/obj.clangAnalysisFlowSensitive.dir/TypeErasedDataflowAnalysis.cpp.o
[103/450] Building CXX object tools/clang/lib/AST/CMakeFiles/obj.clangAST.dir/DynamicRecursiveASTVisitor.cpp.o
[104/450] Building CXX object tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaTemplate.cpp.o
In file included from /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/lib/Sema/TreeTransform.h:48,
                 from /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/lib/Sema/SemaTemplate.cpp:11:
In constructor ‘clang::LocalInstantiationScope::LocalInstantiationScope(clang::Sema&, bool, bool)’,
    inlined from ‘bool clang::Sema::CheckTemplateArgumentList(clang::TemplateDecl*, clang::TemplateParameterList*, clang::SourceLocation, clang::TemplateArgumentListInfo&, const clang::DefaultArguments&, bool, CheckTemplateArgumentInfo&, bool, bool*)’ at /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/lib/Sema/SemaTemplate.cpp:5871:48:
/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/include/clang/Sema/Template.h:442:41: warning: storing the address of local variable ‘InstScope’ in ‘*this.clang::Sema::CurrentInstantiationScope’ [-Wdangling-pointer=]

```

</details>

https://github.com/llvm/llvm-project/pull/162573