[libc-commits] [libc] [libc] Tag cpp::byte with gnu::may_alias (PR #200462)

[LLVM Continuous Integration via libc-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `libc-x86_64-debian-fullbuild-dbg` running on `libc-x86_64-debian-fullbuild` while building `libc` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/179/builds/47589

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

```
Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/libc-linux.py ...' (failure)
...
[128/138] Running integration test libc.test.integration.src.unistd.getcwd_test
[129/138] Running integration test libc.test.integration.src.unistd.execv_test
[130/138] Running integration test libc.test.integration.src.unistd.execve_test
[131/138] Running integration test libc.test.integration.src.threads.mtx_test
[132/138] Running integration test libc.test.integration.src.unistd.fork_test
[133/138] Running integration test libc.test.integration.src.__support.threads.cndvar_test
[134/138] Running integration test libc.test.integration.src.pthread.pthread_cond_test
[135/138] Running integration test libc.test.integration.src.threads.thrd_test
[136/138] Running integration test libc.test.integration.src.pthread.pthread_test
[137/138] Running integration test libc.test.integration.src.__support.threads.futex_requeue_test
command timed out: 1200 seconds without output running [b'python', b'../llvm-zorg/zorg/buildbot/builders/annotated/libc-linux.py', b'--debug'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=1461.950423
Step 9 (libc-integration-tests) failure: libc-integration-tests (failure)
...
[93/138] Building CXX object libc/test/integration/src/threads/CMakeFiles/libc.test.integration.src.threads.mtx_test.__build__.dir/mtx_test.cpp.o
[94/138] Linking CXX static library libc/test/integration/src/threads/liblibc.test.integration.src.threads.cnd_test.libc.a
[95/138] Linking CXX static library libc/test/integration/src/ucontext/liblibc.test.integration.src.ucontext.ucontext_test.libc.a
[96/138] Linking CXX static library libc/test/integration/src/unistd/liblibc.test.integration.src.unistd.getcwd_test.libc.a
[97/138] Linking CXX static library libc/test/integration/src/unistd/liblibc.test.integration.src.unistd.fork_test.libc.a
[98/138] Running integration test libc.test.integration.src.pthread.pthread_rwlock_test
[99/138] Running integration test libc.test.integration.src.pthread.pthread_name_test
[100/138] Running integration test libc.test.integration.src.pthread.pthread_join_test
[101/138] Linking CXX executable libc/test/integration/src/threads/libc.test.integration.src.threads.thrd_exit_test.__build__
[102/138] Running integration test libc.test.integration.src.pthread.pthread_create_test
[103/138] Running integration test libc.test.integration.src.spawn.posix_spawn_test
[104/138] Running integration test libc.test.integration.src.stdio.sprintf_size_test
[105/138] Running integration test libc.test.integration.src.stdio.sprintf_size_test_no_sprintf
[106/138] Running integration test libc.test.integration.src.stdlib.getenv_test
[107/138] Running integration test libc.test.integration.src.stdlib.setenv_test
[108/138] Running integration test libc.test.integration.src.stdlib.abort_test
[109/138] Running integration test libc.test.integration.src.threads.thrd_equal_test
[110/138] Linking CXX static library libc/test/integration/src/unistd/liblibc.test.integration.src.unistd.execv_test.libc.a
[111/138] Linking CXX static library libc/test/integration/src/unistd/liblibc.test.integration.src.unistd.execve_test.libc.a
[112/138] Linking CXX executable libc/test/integration/src/threads/libc.test.integration.src.threads.tss_test.__build__
[113/138] Linking CXX executable libc/test/integration/src/threads/libc.test.integration.src.threads.call_once_test.__build__
[114/138] Running integration test libc.test.integration.src.sys.sem.sem_test
[115/138] Running integration test libc.test.integration.src.pthread.pthread_mutex_test
[116/138] Linking CXX executable libc/test/integration/src/threads/libc.test.integration.src.threads.mtx_test.__build__
[117/138] Linking CXX executable libc/test/integration/src/ucontext/libc.test.integration.src.ucontext.ucontext_test.__build__
[118/138] Running integration test libc.test.integration.src.threads.thrd_exit_test
[119/138] Running integration test libc.test.integration.src.ucontext.ucontext_test
[120/138] Running integration test libc.test.integration.src.threads.tss_test
[121/138] Running integration test libc.test.integration.src.threads.call_once_test
[122/138] Linking CXX executable libc/test/integration/src/threads/libc.test.integration.src.threads.cnd_test.__build__
[123/138] Linking CXX executable libc/test/integration/src/unistd/libc.test.integration.src.unistd.getcwd_test.__build__
[124/138] Linking CXX executable libc/test/integration/src/unistd/libc.test.integration.src.unistd.fork_test.__build__
[125/138] Linking CXX executable libc/test/integration/src/unistd/libc.test.integration.src.unistd.execv_test.__build__
[126/138] Running integration test libc.test.integration.src.pthread.pthread_barrier_test
[127/138] Linking CXX executable libc/test/integration/src/unistd/libc.test.integration.src.unistd.execve_test.__build__
[128/138] Running integration test libc.test.integration.src.unistd.getcwd_test
[129/138] Running integration test libc.test.integration.src.unistd.execv_test
[130/138] Running integration test libc.test.integration.src.unistd.execve_test
[131/138] Running integration test libc.test.integration.src.threads.mtx_test
[132/138] Running integration test libc.test.integration.src.unistd.fork_test
[133/138] Running integration test libc.test.integration.src.__support.threads.cndvar_test
[134/138] Running integration test libc.test.integration.src.pthread.pthread_cond_test
[135/138] Running integration test libc.test.integration.src.threads.thrd_test
[136/138] Running integration test libc.test.integration.src.pthread.pthread_test
[137/138] Running integration test libc.test.integration.src.__support.threads.futex_requeue_test

command timed out: 1200 seconds without output running [b'python', b'../llvm-zorg/zorg/buildbot/builders/annotated/libc-linux.py', b'--debug'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=1461.950423

```

</details>

https://github.com/llvm/llvm-project/pull/200462