[libcxx-commits] [libcxx] [libc++][concepts] P2404R3: Move-only types for equality_comparable_with, totally_ordered_with, and three_way_comparable_with (PR #99420)

Sun Dec 21 13:34:19 PST 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-ppc64le-linux` running on `ppc64le-sanitizer` while building `libcxx` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/72/builds/16737

<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) (timed out)
...
[2516/2523] Linking CXX static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/powerpc64le-unknown-linux-gnu/libc++abi.a
[2517/2523] Building ASM object compiler-rt/lib/orc/CMakeFiles/RTOrc.powerpc64le.dir/elfnix_tls.ppc64.S.o
[2518/2523] Building ASM object compiler-rt/lib/orc/CMakeFiles/RTOrc.powerpc64le.dir/sysv_reenter.x86-64.S.o
[2519/2523] Linking CXX static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/clang/22/lib/powerpc64le-unknown-linux-gnu/liborc_rt.a
[2520/2523] Linking CXX static library compiler-rt/lib/orc/tests/libRTOrc.test.powerpc64le.a
[2521/2523] Creating library symlink /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/powerpc64le-unknown-linux-gnu/libc++.so.1 /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/powerpc64le-unknown-linux-gnu/libc++.so
[2522/2523] Linking CXX static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/powerpc64le-unknown-linux-gnu/libc++.a
[2523/2523] Linking CXX static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/powerpc64le-unknown-linux-gnu/libc++experimental.a
[4343/4345] No install step for 'runtimes'
[4345/4345] Completed 'runtimes'
command timed out: 1800 seconds without output running [b'python', b'../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=4565.773878
Step 10 (build compiler-rt tsan_debug) failure: build compiler-rt tsan_debug (failure)
...
[2481/2523] Building CXX object compiler-rt/lib/scudo/standalone/CMakeFiles/clang_rt.scudo_standalone-powerpc64le.dir/linux.cpp.o
[2482/2523] Building CXX object compiler-rt/lib/scudo/standalone/CMakeFiles/clang_rt.scudo_standalone-powerpc64le.dir/mem_map.cpp.o
[2483/2523] Building CXX object compiler-rt/lib/scudo/standalone/CMakeFiles/clang_rt.scudo_standalone-powerpc64le.dir/mem_map_fuchsia.cpp.o
[2484/2523] Building CXX object compiler-rt/lib/scudo/standalone/CMakeFiles/clang_rt.scudo_standalone-powerpc64le.dir/mem_map_linux.cpp.o
[2485/2523] Building CXX object compiler-rt/lib/scudo/standalone/CMakeFiles/clang_rt.scudo_standalone-powerpc64le.dir/release.cpp.o
[2486/2523] Building CXX object compiler-rt/lib/scudo/standalone/CMakeFiles/clang_rt.scudo_standalone-powerpc64le.dir/report.cpp.o
[2487/2523] Building CXX object compiler-rt/lib/scudo/standalone/CMakeFiles/clang_rt.scudo_standalone-powerpc64le.dir/report_linux.cpp.o
[2488/2523] Building CXX object compiler-rt/lib/scudo/standalone/CMakeFiles/clang_rt.scudo_standalone-powerpc64le.dir/string_utils.cpp.o
[2489/2523] Building CXX object compiler-rt/lib/scudo/standalone/CMakeFiles/clang_rt.scudo_standalone-powerpc64le.dir/timing.cpp.o
[2490/2523] Building CXX object compiler-rt/lib/scudo/standalone/CMakeFiles/clang_rt.scudo_standalone-powerpc64le.dir/wrappers_c.cpp.o
[2491/2523] Building CXX object libcxx/src/CMakeFiles/cxx_shared.dir/locale.cpp.o
[2492/2523] Building CXX object libcxx/src/CMakeFiles/cxx_experimental.dir/experimental/time_zone.cpp.o
[2493/2523] Building ASM object compiler-rt/lib/asan/CMakeFiles/RTAsan.powerpc64le.dir/asan_interceptors_vfork.S.o
[2494/2523] Building ASM object libunwind/src/CMakeFiles/unwind_static_objects.dir/UnwindRegistersRestore.S.o
[2495/2523] Building ASM object libunwind/src/CMakeFiles/unwind_static_objects.dir/UnwindRegistersSave.S.o
[2496/2523] Building ASM object compiler-rt/lib/tsan/rtl/CMakeFiles/clang_rt.tsan-powerpc64le.dir/tsan_rtl_ppc64.S.o
[2497/2523] Building ASM object compiler-rt/lib/xray/CMakeFiles/RTXray.powerpc64le.dir/xray_trampoline_powerpc64_asm.S.o
[2498/2523] Building ASM object compiler-rt/lib/orc/CMakeFiles/RTOrc.powerpc64le.dir/elfnix_tls.x86-64.S.o
[2499/2523] Building ASM object compiler-rt/lib/orc/CMakeFiles/RTOrc.powerpc64le.dir/elfnix_tls.aarch64.S.o
[2500/2523] Building ASM object compiler-rt/lib/orc/CMakeFiles/RTOrc.powerpc64le.dir/elfnix_tls.systemz.S.o
[2501/2523] Building ASM object compiler-rt/lib/orc/CMakeFiles/RTOrc.powerpc64le.dir/sysv_reenter.arm64.S.o
[2502/2523] Linking CXX static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/clang/22/lib/powerpc64le-unknown-linux-gnu/libclang_rt.scudo_standalone.a
[2503/2523] Linking CXX static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/clang/22/lib/powerpc64le-unknown-linux-gnu/libclang_rt.asan.a
[2504/2523] Linking CXX static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/clang/22/lib/powerpc64le-unknown-linux-gnu/libclang_rt.xray.a
[2505/2523] Linking CXX static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/clang/22/lib/powerpc64le-unknown-linux-gnu/libclang_rt.tsan.a
[2506/2523] Generating exported symbols for clang_rt.asan-powerpc64le
[2507/2523] Generating exported symbols for clang_rt.tsan-powerpc64le
[2508/2523] Generating version list for clang_rt.asan-dynamic-powerpc64le
[2509/2523] Building CXX object compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic_version_script_dummy.powerpc64le.dir/dummy.cpp.o
[2510/2523] Building ASM object compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64le.dir/asan_interceptors_vfork.S.o
[2511/2523] Linking CXX shared library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/clang/22/lib/powerpc64le-unknown-linux-gnu/libclang_rt.asan.so
[2512/2523] Linking C static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/powerpc64le-unknown-linux-gnu/libunwind.a
[2513/2523] Linking CXX shared library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/powerpc64le-unknown-linux-gnu/libc++.so.1.0
[2514/2523] Building ASM object compiler-rt/lib/tsan/rtl/CMakeFiles/clang_rt.tsan-dynamic-powerpc64le.dir/tsan_rtl_ppc64.S.o
[2515/2523] Linking CXX shared library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/clang/22/lib/powerpc64le-unknown-linux-gnu/libclang_rt.tsan.so
[2516/2523] Linking CXX static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/powerpc64le-unknown-linux-gnu/libc++abi.a
[2517/2523] Building ASM object compiler-rt/lib/orc/CMakeFiles/RTOrc.powerpc64le.dir/elfnix_tls.ppc64.S.o
[2518/2523] Building ASM object compiler-rt/lib/orc/CMakeFiles/RTOrc.powerpc64le.dir/sysv_reenter.x86-64.S.o
[2519/2523] Linking CXX static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/clang/22/lib/powerpc64le-unknown-linux-gnu/liborc_rt.a
[2520/2523] Linking CXX static library compiler-rt/lib/orc/tests/libRTOrc.test.powerpc64le.a
[2521/2523] Creating library symlink /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/powerpc64le-unknown-linux-gnu/libc++.so.1 /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/powerpc64le-unknown-linux-gnu/libc++.so
[2522/2523] Linking CXX static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/powerpc64le-unknown-linux-gnu/libc++.a
[2523/2523] Linking CXX static library /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/powerpc64le-unknown-linux-gnu/libc++experimental.a
[4343/4345] No install step for 'runtimes'
[4345/4345] Completed 'runtimes'

command timed out: 1800 seconds without output running [b'python', b'../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=4565.773878

```

</details>

https://github.com/llvm/llvm-project/pull/99420