[libc-commits] [libc] [llvm] Reland Refactor WIDE_READ to allow finer control over high-performance function selection (#165613) (PR #170738)

[LLVM Continuous Integration via libc-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `libc-arm32-qemu-debian-dbg` running on `libc-arm32-qemu-debian` while building `libc,utils` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/215/builds/11020

<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)
...
    Missing ',' or '}' in object declaration

Call Stack (most recent call first):
  /home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/llvm-project/libc/cmake/modules/LibcConfig.cmake:109 (read_libc_config)
  /home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/llvm-project/libc/CMakeLists.txt:226 (load_libc_config)


-- Configuring incomplete, errors occurred!
See also "/home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/build/CMakeFiles/CMakeOutput.log".
See also "/home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/build/CMakeFiles/CMakeError.log".
FAILED: build.ninja 
/usr/bin/cmake --regenerate-during-build -S/home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/llvm-project/runtimes -B/home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/build
ninja: error: rebuilding 'build.ninja': subcommand failed
['ninja', 'libc'] exited with return code 1.
The build step threw an exception...
Traceback (most recent call last):
  File "/home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/build/../llvm-zorg/zorg/buildbot/builders/annotated/libc-linux.py", line 181, in step
    yield
  File "/home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/build/../llvm-zorg/zorg/buildbot/builders/annotated/libc-linux.py", line 143, in main
    run_command(['ninja', 'libc'])
  File "/home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/build/../llvm-zorg/zorg/buildbot/builders/annotated/libc-linux.py", line 196, in run_command
    util.report_run_cmd(cmd, cwd=directory)
  File "/home/llvm-libc-buildbot/buildbot-worker/libc-arm32-qemu-debian/libc-arm32-qemu-debian-dbg/llvm-zorg/zorg/buildbot/builders/annotated/util.py", line 49, in report_run_cmd
    subprocess.check_call(cmd, shell=shell, *args, **kwargs)
  File "/usr/lib/python3.11/subprocess.py", line 413, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['ninja', 'libc']' returned non-zero exit status 1.
@@@STEP_FAILURE@@@
@@@BUILD_STEP libc-unit-tests@@@
Running: ninja libc-unit-tests
[0/1] Re-running CMake...
-- Performing standalone runtimes build.
-- Could NOT find LLVM (missing: LLVM_DIR)
-- Could NOT find Clang (missing: Clang_DIR)
-- LLVM host triple: x86_64-unknown-linux-gnu
-- LLVM default target triple: x86_64-unknown-linux-gnu
-- Setting LIBC_NAMESPACE namespace to '__llvm_libc_21_0_0_git'
-- Set COMPILER_RESOURCE_DIR to /usr/lib/llvm-14/lib/clang/14.0.6 using --print-resource-dir
-- Building libc for arm on linux with LIBC_COMPILE_OPTIONS_DEFAULT: --target=arm-linux-gnueabihf;--target=arm-linux-gnueabihf
-- LIBC_CONF_ENABLE_STRONG_STACK_PROTECTOR: ON
-- LIBC_CONF_KEEP_FRAME_POINTER: ON
-- LIBC_CONF_ERRNO_MODE: LIBC_ERRNO_MODE_DEFAULT
-- LIBC_ADD_NULL_CHECKS: ON
-- LIBC_CONF_FREXP_INF_NAN_EXPONENT: 
-- LIBC_CONF_MATH_OPTIMIZATIONS: 0
-- LIBC_CONF_PRINTF_DISABLE_FIXED_POINT: OFF
-- LIBC_CONF_PRINTF_DISABLE_FLOAT: OFF
-- LIBC_CONF_PRINTF_DISABLE_INDEX_MODE: OFF
-- LIBC_CONF_PRINTF_DISABLE_STRERROR: OFF

```

</details>

https://github.com/llvm/llvm-project/pull/170738