[clang] [CMake][Fuchsia] Build libclang_rt.builtins for arm-fuchsia (PR #166686)

Thu Nov 6 13:16:13 PST 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `flang-arm64-windows-msvc` running on `linaro-armv8-windows-msvc-01` while building `clang` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/207/builds/9614

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
1498.152 [2790/10/4764] Building CXX object tools\flang\lib\Evaluate\CMakeFiles\FortranEvaluate.dir\type.cpp.obj
1498.409 [2789/10/4765] Building CXX object tools\flang\lib\Optimizer\Support\CMakeFiles\FIRSupport.dir\Utils.cpp.obj
1499.731 [2788/10/4766] Building CXX object tools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\BoxValue.cpp.obj
1501.135 [2787/10/4767] Building CXX object tools\flang\lib\Evaluate\CMakeFiles\FortranEvaluate.dir\fold-integer.cpp.obj
1503.526 [2786/10/4768] Building CXX object tools\flang\lib\Evaluate\CMakeFiles\FortranEvaluate.dir\shape.cpp.obj
1505.718 [2785/10/4769] Building CXX object tools\flang\lib\Optimizer\Support\CMakeFiles\FIRSupport.dir\InitFIR.cpp.obj
1508.082 [2784/10/4770] Building CXX object tools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\Complex.cpp.obj
1509.869 [2783/10/4771] Building CXX object tools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\DoLoopHelper.cpp.obj
1513.332 [2782/10/4772] Building CXX object tools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\Character.cpp.obj
1515.860 [2781/10/4773] Building CXX object tools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\HLFIRTools.cpp.obj
FAILED: tools/flang/lib/Optimizer/Builder/CMakeFiles/FIRBuilder.dir/HLFIRTools.cpp.obj 
C:\Users\tcwg\scoop\shims\ccache.exe C:\Users\tcwg\scoop\apps\llvm-arm64\current\bin\clang-cl.exe  /nologo -TP -DFLANG_INCLUDE_TESTS=1 -DGTEST_HAS_RTTI=0 -DUNICODE -D_CRT_NONSTDC_NO_DEPRECATE -D_CRT_NONSTDC_NO_WARNINGS -D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS -D_GLIBCXX_ASSERTIONS -D_HAS_EXCEPTIONS=0 -D_SCL_SECURE_NO_DEPRECATE -D_SCL_SECURE_NO_WARNINGS -D_UNICODE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -IC:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\tools\flang\lib\Optimizer\Builder -IC:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\flang\lib\Optimizer\Builder -IC:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\flang\include -IC:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\tools\flang\include -IC:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\include -IC:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\llvm\include -imsvcC:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\flang\..\mlir\include -imsvcC:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\tools\mlir\include -imsvcC:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\tools\clang\include -imsvcC:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\llvm\..\clang\include /DWIN32 /D_WINDOWS   /Zc:inline /Zc:__cplusplus /Oi /Brepro /bigobj /permissive- -Werror=unguarded-availability-new /W4  -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported /Gw -Wno-deprecated-copy -Wno-string-conversion -Wno-ctad-maybe-unsupported /O2 /Ob2  -std:c++17 -MD  /EHs-c- /GR- -UNDEBUG /showIncludes /Fotools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\HLFIRTools.cpp.obj /Fdtools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\FIRBuilder.pdb -c -- C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\flang\lib\Optimizer\Builder\HLFIRTools.cpp
In file included from C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\flang\lib\Optimizer\Builder\HLFIRTools.cpp:21:
C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\flang\include\flang/Optimizer/OpenMP/Passes.h(27,10): fatal error: 'flang/Optimizer/OpenMP/Passes.h.inc' file not found
   27 | #include "flang/Optimizer/OpenMP/Passes.h.inc"
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
1518.723 [2781/9/4774] Building CXX object tools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\LowLevelIntrinsics.cpp.obj
1521.955 [2781/8/4775] Building CXX object tools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\MutableBox.cpp.obj
1523.085 [2781/7/4776] Building CXX object tools\flang\lib\Evaluate\CMakeFiles\FortranEvaluate.dir\variable.cpp.obj
1523.638 [2781/6/4777] Building CXX object tools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\CUFCommon.cpp.obj
1523.923 [2781/5/4778] Building CXX object tools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\FIRBuilder.cpp.obj
1554.077 [2781/4/4779] Building CXX object tools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\CUDAIntrinsicCall.cpp.obj
1562.115 [2781/3/4780] Building CXX object tools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\PPCIntrinsicCall.cpp.obj
1565.257 [2781/2/4781] Building CXX object tools\flang\lib\Optimizer\Builder\CMakeFiles\FIRBuilder.dir\IntrinsicCall.cpp.obj
1586.768 [2781/1/4782] Building CXX object tools\flang\lib\Evaluate\CMakeFiles\FortranEvaluate.dir\tools.cpp.obj
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/166686