[libcxx-commits] [libcxx] [libc++][pstl] Implementation of parallel std::uninitialized_(copy|move)(_n) based on parallel __for_each (PR #223229)
LLVM Continuous Integration via libcxx-commits
libcxx-commits at lists.llvm.org
Sun Sep 20 22:45:45 PDT 2026
llvm-ci wrote:
LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux` running on `sanitizer-buildbot2` while building `libcxx` at step 2 "annotate".
Full details are available at: https://lab.llvm.org/buildbot/#/builders/66/builds/37384
<details>
<summary>Here is the relevant piece of the build log for the reference</summary>
```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
is not a full path to an existing compiler tool.
Tell CMake where to find the compiler by setting either the environment
variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
to the compiler, or to the compiler name if it is in the PATH.
CMake Error at CMakeLists.txt:30 (project):
No CMAKE_ASM_COMPILER could be found.
Tell CMake where to find the compiler by setting either the environment
variable "ASM" or the CMake cache entry CMAKE_ASM_COMPILER to the full path
to the compiler, or to the compiler name if it is in the PATH.
-- Configuring incomplete, errors occurred!
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
@@@STEP_FAILURE@@@
@@@STEP_FAILURE@@@
@@@STEP_FAILURE@@@
ninja: Entering directory `compiler_rt_build'
ninja: error: loading 'build.ninja': No such file or directory
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
@@@STEP_FAILURE@@@
@@@STEP_FAILURE@@@
@@@STEP_FAILURE@@@
@@@BUILD_STEP test standalone compiler-rt@@@
ninja: Entering directory `compiler_rt_build'
ninja: error: loading 'build.ninja': No such file or directory
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
@@@STEP_FAILURE@@@
@@@STEP_FAILURE@@@
@@@STEP_FAILURE@@@
@@@BUILD_STEP tsan analyze@@@
../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_cmake.sh: line 124: /home/b/sanitizer-x86_64-linux/build/build_default/bin/clang: No such file or directory
Step 8 (build compiler-rt symbolizer) failure: build compiler-rt symbolizer (failure)
...
-- Performing Test HAVE_CXX_FLAG_WOLD_STYLE_CAST - Success
-- Performing Test HAVE_CXX_FLAG_WCONVERSION
-- Performing Test HAVE_CXX_FLAG_WCONVERSION - Success
-- Performing Test HAVE_CXX_FLAG_WFORMAT_2
-- Performing Test HAVE_CXX_FLAG_WFORMAT_2 - Success
-- Performing Test HAVE_CXX_FLAG_WERROR
-- Performing Test HAVE_CXX_FLAG_WERROR - Success
-- Performing Test HAVE_CXX_FLAG_WSUGGEST_OVERRIDE
-- Performing Test HAVE_CXX_FLAG_WSUGGEST_OVERRIDE - Success
-- Performing Test HAVE_CXX_FLAG_PEDANTIC
-- Performing Test HAVE_CXX_FLAG_PEDANTIC - Success
-- Performing Test HAVE_CXX_FLAG_PEDANTIC_ERRORS
-- Performing Test HAVE_CXX_FLAG_PEDANTIC_ERRORS - Success
-- Performing Test HAVE_CXX_FLAG_WSHORTEN_64_TO_32
-- Performing Test HAVE_CXX_FLAG_WSHORTEN_64_TO_32 - Success
-- Performing Test HAVE_CXX_FLAG_FSTRICT_ALIASING
-- Performing Test HAVE_CXX_FLAG_FSTRICT_ALIASING - Success
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED_DECLARATIONS
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED_DECLARATIONS - Success
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED - Success
-- Performing Test HAVE_CXX_FLAG_FNO_EXCEPTIONS
-- Performing Test HAVE_CXX_FLAG_FNO_EXCEPTIONS - Success
-- Performing Test HAVE_CXX_FLAG_WSTRICT_ALIASING
-- Performing Test HAVE_CXX_FLAG_WSTRICT_ALIASING - Success
-- Performing Test HAVE_CXX_FLAG_WTHREAD_SAFETY
-- Performing Test HAVE_CXX_FLAG_WTHREAD_SAFETY - Success
-- Enabling additional flags: -DINCLUDE_DIRECTORIES=/home/b/sanitizer-x86_64-linux/build/llvm-project/third-party/benchmark/include
-- Performing Test THREAD_SAFETY_ATTRIBUTES -- success
-- Performing Test HAVE_CXX_FLAG_COVERAGE
-- Performing Test HAVE_CXX_FLAG_COVERAGE - Success
CMake Warning at /home/b/sanitizer-x86_64-linux/build/llvm-project/third-party/benchmark/CMakeLists.txt:329 (message):
Using std::regex with exceptions disabled is not fully supported
-- Performing Test STEADY_CLOCK -- success
-- Performing Test PTHREAD_AFFINITY -- success
-- Configuring incomplete, errors occurred!
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
ninja: Entering directory `build_default'
ninja: error: loading 'build.ninja': No such file or directory
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
Step 9 (test compiler-rt symbolizer) failure: test compiler-rt symbolizer (failure)
@@@BUILD_STEP test compiler-rt symbolizer@@@
ninja: Entering directory `build_default'
ninja: error: loading 'build.ninja': No such file or directory
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
Step 10 (build compiler-rt debug) failure: build compiler-rt debug (failure)
...
-- Performing Test HAVE_CXX_FLAG_WOLD_STYLE_CAST - Success
-- Performing Test HAVE_CXX_FLAG_WCONVERSION
-- Performing Test HAVE_CXX_FLAG_WCONVERSION - Success
-- Performing Test HAVE_CXX_FLAG_WFORMAT_2
-- Performing Test HAVE_CXX_FLAG_WFORMAT_2 - Success
-- Performing Test HAVE_CXX_FLAG_WERROR
-- Performing Test HAVE_CXX_FLAG_WERROR - Success
-- Performing Test HAVE_CXX_FLAG_WSUGGEST_OVERRIDE
-- Performing Test HAVE_CXX_FLAG_WSUGGEST_OVERRIDE - Success
-- Performing Test HAVE_CXX_FLAG_PEDANTIC
-- Performing Test HAVE_CXX_FLAG_PEDANTIC - Success
-- Performing Test HAVE_CXX_FLAG_PEDANTIC_ERRORS
-- Performing Test HAVE_CXX_FLAG_PEDANTIC_ERRORS - Success
-- Performing Test HAVE_CXX_FLAG_WSHORTEN_64_TO_32
-- Performing Test HAVE_CXX_FLAG_WSHORTEN_64_TO_32 - Success
-- Performing Test HAVE_CXX_FLAG_FSTRICT_ALIASING
-- Performing Test HAVE_CXX_FLAG_FSTRICT_ALIASING - Success
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED_DECLARATIONS
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED_DECLARATIONS - Success
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED - Success
-- Performing Test HAVE_CXX_FLAG_FNO_EXCEPTIONS
-- Performing Test HAVE_CXX_FLAG_FNO_EXCEPTIONS - Success
-- Performing Test HAVE_CXX_FLAG_WSTRICT_ALIASING
-- Performing Test HAVE_CXX_FLAG_WSTRICT_ALIASING - Success
-- Performing Test HAVE_CXX_FLAG_WTHREAD_SAFETY
-- Performing Test HAVE_CXX_FLAG_WTHREAD_SAFETY - Success
-- Enabling additional flags: -DINCLUDE_DIRECTORIES=/home/b/sanitizer-x86_64-linux/build/llvm-project/third-party/benchmark/include
-- Performing Test THREAD_SAFETY_ATTRIBUTES -- success
-- Performing Test HAVE_CXX_FLAG_COVERAGE
-- Performing Test HAVE_CXX_FLAG_COVERAGE - Success
CMake Warning at /home/b/sanitizer-x86_64-linux/build/llvm-project/third-party/benchmark/CMakeLists.txt:329 (message):
Using std::regex with exceptions disabled is not fully supported
-- Performing Test STEADY_CLOCK -- success
-- Performing Test PTHREAD_AFFINITY -- success
-- Configuring incomplete, errors occurred!
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
ninja: Entering directory `build_default'
ninja: error: loading 'build.ninja': No such file or directory
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
Step 11 (test compiler-rt debug) failure: test compiler-rt debug (failure)
@@@BUILD_STEP test compiler-rt debug@@@
ninja: Entering directory `build_default'
ninja: error: loading 'build.ninja': No such file or directory
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
Step 12 (build compiler-rt tsan_debug) failure: build compiler-rt tsan_debug (failure)
...
-- Performing Test HAVE_CXX_FLAG_WOLD_STYLE_CAST - Success
-- Performing Test HAVE_CXX_FLAG_WCONVERSION
-- Performing Test HAVE_CXX_FLAG_WCONVERSION - Success
-- Performing Test HAVE_CXX_FLAG_WFORMAT_2
-- Performing Test HAVE_CXX_FLAG_WFORMAT_2 - Success
-- Performing Test HAVE_CXX_FLAG_WERROR
-- Performing Test HAVE_CXX_FLAG_WERROR - Success
-- Performing Test HAVE_CXX_FLAG_WSUGGEST_OVERRIDE
-- Performing Test HAVE_CXX_FLAG_WSUGGEST_OVERRIDE - Success
-- Performing Test HAVE_CXX_FLAG_PEDANTIC
-- Performing Test HAVE_CXX_FLAG_PEDANTIC - Success
-- Performing Test HAVE_CXX_FLAG_PEDANTIC_ERRORS
-- Performing Test HAVE_CXX_FLAG_PEDANTIC_ERRORS - Success
-- Performing Test HAVE_CXX_FLAG_WSHORTEN_64_TO_32
-- Performing Test HAVE_CXX_FLAG_WSHORTEN_64_TO_32 - Success
-- Performing Test HAVE_CXX_FLAG_FSTRICT_ALIASING
-- Performing Test HAVE_CXX_FLAG_FSTRICT_ALIASING - Success
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED_DECLARATIONS
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED_DECLARATIONS - Success
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED - Success
-- Performing Test HAVE_CXX_FLAG_FNO_EXCEPTIONS
-- Performing Test HAVE_CXX_FLAG_FNO_EXCEPTIONS - Success
-- Performing Test HAVE_CXX_FLAG_WSTRICT_ALIASING
-- Performing Test HAVE_CXX_FLAG_WSTRICT_ALIASING - Success
-- Performing Test HAVE_CXX_FLAG_WTHREAD_SAFETY
-- Performing Test HAVE_CXX_FLAG_WTHREAD_SAFETY - Success
-- Enabling additional flags: -DINCLUDE_DIRECTORIES=/home/b/sanitizer-x86_64-linux/build/llvm-project/third-party/benchmark/include
-- Performing Test THREAD_SAFETY_ATTRIBUTES -- success
-- Performing Test HAVE_CXX_FLAG_COVERAGE
-- Performing Test HAVE_CXX_FLAG_COVERAGE - Success
CMake Warning at /home/b/sanitizer-x86_64-linux/build/llvm-project/third-party/benchmark/CMakeLists.txt:329 (message):
Using std::regex with exceptions disabled is not fully supported
-- Performing Test STEADY_CLOCK -- success
-- Performing Test PTHREAD_AFFINITY -- success
-- Configuring incomplete, errors occurred!
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
ninja: Entering directory `build_default'
ninja: error: loading 'build.ninja': No such file or directory
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
Step 13 (build compiler-rt default) failure: build compiler-rt default (failure)
...
-- Performing Test HAVE_CXX_FLAG_WOLD_STYLE_CAST - Success
-- Performing Test HAVE_CXX_FLAG_WCONVERSION
-- Performing Test HAVE_CXX_FLAG_WCONVERSION - Success
-- Performing Test HAVE_CXX_FLAG_WFORMAT_2
-- Performing Test HAVE_CXX_FLAG_WFORMAT_2 - Success
-- Performing Test HAVE_CXX_FLAG_WERROR
-- Performing Test HAVE_CXX_FLAG_WERROR - Success
-- Performing Test HAVE_CXX_FLAG_WSUGGEST_OVERRIDE
-- Performing Test HAVE_CXX_FLAG_WSUGGEST_OVERRIDE - Success
-- Performing Test HAVE_CXX_FLAG_PEDANTIC
-- Performing Test HAVE_CXX_FLAG_PEDANTIC - Success
-- Performing Test HAVE_CXX_FLAG_PEDANTIC_ERRORS
-- Performing Test HAVE_CXX_FLAG_PEDANTIC_ERRORS - Success
-- Performing Test HAVE_CXX_FLAG_WSHORTEN_64_TO_32
-- Performing Test HAVE_CXX_FLAG_WSHORTEN_64_TO_32 - Success
-- Performing Test HAVE_CXX_FLAG_FSTRICT_ALIASING
-- Performing Test HAVE_CXX_FLAG_FSTRICT_ALIASING - Success
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED_DECLARATIONS
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED_DECLARATIONS - Success
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED
-- Performing Test HAVE_CXX_FLAG_WNO_DEPRECATED - Success
-- Performing Test HAVE_CXX_FLAG_FNO_EXCEPTIONS
-- Performing Test HAVE_CXX_FLAG_FNO_EXCEPTIONS - Success
-- Performing Test HAVE_CXX_FLAG_WSTRICT_ALIASING
-- Performing Test HAVE_CXX_FLAG_WSTRICT_ALIASING - Success
-- Performing Test HAVE_CXX_FLAG_WTHREAD_SAFETY
-- Performing Test HAVE_CXX_FLAG_WTHREAD_SAFETY - Success
-- Enabling additional flags: -DINCLUDE_DIRECTORIES=/home/b/sanitizer-x86_64-linux/build/llvm-project/third-party/benchmark/include
-- Performing Test THREAD_SAFETY_ATTRIBUTES -- success
-- Performing Test HAVE_CXX_FLAG_COVERAGE
-- Performing Test HAVE_CXX_FLAG_COVERAGE - Success
CMake Warning at /home/b/sanitizer-x86_64-linux/build/llvm-project/third-party/benchmark/CMakeLists.txt:329 (message):
Using std::regex with exceptions disabled is not fully supported
-- Performing Test STEADY_CLOCK -- success
-- Performing Test PTHREAD_AFFINITY -- success
-- Configuring incomplete, errors occurred!
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
ninja: Entering directory `build_default'
ninja: error: loading 'build.ninja': No such file or directory
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
Step 14 (test compiler-rt default) failure: test compiler-rt default (failure)
@@@BUILD_STEP test compiler-rt default@@@
ninja: Entering directory `build_default'
ninja: error: loading 'build.ninja': No such file or directory
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
Step 15 (build standalone compiler-rt) failure: build standalone compiler-rt (failure)
...
+ /usr/bin/cmake -B compiler_rt_build -GNinja -DPython3_EXECUTABLE=/home/b/sanitizer-x86_64-linux/build/llvm_venv/bin/python -DCMAKE_C_COMPILER=/home/b/sanitizer-x86_64-linux/build/build_default/bin/clang -DCMAKE_CXX_COMPILER=/home/b/sanitizer-x86_64-linux/build/build_default/bin/clang++ -DCOMPILER_RT_INCLUDE_TESTS=ON -DCOMPILER_RT_ENABLE_WERROR=ON -DLLVM_CMAKE_DIR=/home/b/sanitizer-x86_64-linux/build/build_default/bin/.. /home/b/sanitizer-x86_64-linux/build/llvm-project/llvm/../compiler-rt
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
-- The ASM compiler identification is unknown
-- Didn't find assembler
CMake Error at CMakeLists.txt:30 (project):
The CMAKE_C_COMPILER:
/home/b/sanitizer-x86_64-linux/build/build_default/bin/clang
is not a full path to an existing compiler tool.
Tell CMake where to find the compiler by setting either the environment
variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
the compiler, or to the compiler name if it is in the PATH.
CMake Error at CMakeLists.txt:30 (project):
The CMAKE_CXX_COMPILER:
/home/b/sanitizer-x86_64-linux/build/build_default/bin/clang++
is not a full path to an existing compiler tool.
Tell CMake where to find the compiler by setting either the environment
variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
to the compiler, or to the compiler name if it is in the PATH.
CMake Error at CMakeLists.txt:30 (project):
No CMAKE_ASM_COMPILER could be found.
Tell CMake where to find the compiler by setting either the environment
variable "ASM" or the CMake cache entry CMAKE_ASM_COMPILER to the full path
to the compiler, or to the compiler name if it is in the PATH.
-- Configuring incomplete, errors occurred!
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
ninja: Entering directory `compiler_rt_build'
ninja: error: loading 'build.ninja': No such file or directory
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
Step 16 (test standalone compiler-rt) failure: test standalone compiler-rt (failure)
@@@BUILD_STEP test standalone compiler-rt@@@
ninja: Entering directory `compiler_rt_build'
ninja: error: loading 'build.ninja': No such file or directory
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
```
</details>
https://github.com/llvm/llvm-project/pull/223229
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