[clang] [Clang] Use valid source loc for empty target_clones diagnostic (PR #173747)

Thu Jan 1 11:37:38 PST 2026

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/20908

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

```
Step 4 (build stage 1) failure: 'ninja' (failure)
...
[79/443] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseTemplate.cpp.o
[80/443] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseInit.cpp.o
[81/443] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseOpenACC.cpp.o
[82/443] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseObjc.cpp.o
[83/443] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseExprCXX.cpp.o
[84/443] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseHLSL.cpp.o
[85/443] Building CXX object tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaDeclCXX.cpp.o
[86/443] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseCXXInlineMethods.cpp.o
[87/443] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParsePragma.cpp.o
[88/443] Building CXX object tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaOpenMP.cpp.o
FAILED: tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaOpenMP.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 -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -O3 -DNDEBUG -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaOpenMP.cpp.o -MF tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaOpenMP.cpp.o.d -o tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaOpenMP.cpp.o -c /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/lib/Sema/SemaOpenMP.cpp
In file included from /usr/include/c++/14/cassert:44,
                 from /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/llvm/include/llvm/ADT/PointerEmbeddedInt.h:15,
                 from /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/lib/Sema/SemaOpenMP.cpp:41:
/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/lib/Sema/SemaOpenMP.cpp: In member function ‘clang::OMPClause* clang::SemaOpenMP::ActOnOpenMPUseDeviceAddrClause(llvm::ArrayRef<clang::Expr*>, const clang::OMPVarListLocTy&)’:
/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/lib/Sema/SemaOpenMP.cpp:24751:27: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
24751 |            CurDeclaration &&
      |            ~~~~~~~~~~~~~~~^~
24752 |                "Unexpected null decl for use_device_addr clause.");
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
c++: fatal error: Killed signal terminated program cc1plus
compilation terminated.
[89/443] Building CXX object tools/clang/lib/Frontend/CMakeFiles/obj.clangFrontend.dir/ASTMerge.cpp.o
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[91/443] Building CXX object tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaDecl.cpp.o
[92/443] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseDecl.cpp.o
[93/443] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseOpenMP.cpp.o
[94/443] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/Parser.cpp.o
[95/443] Building CXX object tools/clang/lib/Serialization/CMakeFiles/obj.clangSerialization.dir/ASTReaderDecl.cpp.o
[96/443] Building CXX object tools/clang/lib/Serialization/CMakeFiles/obj.clangSerialization.dir/GeneratePCH.cpp.o
[97/443] Building CXX object tools/clang/lib/Frontend/CMakeFiles/obj.clangFrontend.dir/DependencyFile.cpp.o
[98/443] Building CXX object tools/clang/lib/Frontend/CMakeFiles/obj.clangFrontend.dir/InitPreprocessor.cpp.o
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[100/443] Building CXX object tools/clang/lib/Frontend/CMakeFiles/obj.clangFrontend.dir/TestModuleFileExtension.cpp.o
[101/443] Building CXX object tools/clang/lib/Serialization/CMakeFiles/obj.clangSerialization.dir/ASTWriterDecl.cpp.o
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[108/443] Building CXX object tools/clang/lib/Driver/CMakeFiles/obj.clangDriver.dir/CreateASTUnitFromArgs.cpp.o
[109/443] Building CXX object tools/clang/lib/Index/CMakeFiles/obj.clangIndex.dir/IndexingAction.cpp.o
[110/443] Building CXX object tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaTemplateDeductionGuide.cpp.o
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```

</details>

https://github.com/llvm/llvm-project/pull/173747