[llvm] [libc][cmake] Make libc not included in LLVM_ENABLE_PROJECTS=all. (PR #142626)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux-bootstrap-ubsan` running on `sanitizer-buildbot10` while building `llvm` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/85/builds/9530

<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)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/main.py:73: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 87798 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80..
FAIL: LLVM :: tools/llvm-reduce/flaky-interestingness.ll (77839 of 87798)
******************** TEST 'LLVM :: tools/llvm-reduce/flaky-interestingness.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
rm -f /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp # RUN: at line 2
+ rm -f /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp
llvm-reduce -j=1 --delta-passes=instructions --test "/usr/bin/python3" --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/tools/llvm-reduce/Inputs/flaky-test.py --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll -o /dev/null 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll # RUN: at line 3
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll
+ llvm-reduce -j=1 --delta-passes=instructions --test /usr/bin/python3 --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/tools/llvm-reduce/Inputs/flaky-test.py --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll -o /dev/null

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
123.90s: Clang :: Driver/fsanitize.c
77.74s: Clang :: Driver/arm-cortex-cpus-2.c
76.62s: Clang :: Driver/arm-cortex-cpus-1.c
74.57s: Clang :: Preprocessor/riscv-target-features.c
72.37s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
68.95s: Clang :: OpenMP/target_update_codegen.cpp
58.78s: Clang :: Preprocessor/aarch64-target-features.c
58.05s: Clang :: Preprocessor/arm-target-features.c
51.03s: Clang :: Driver/linux-ld.c
49.42s: Clang :: Preprocessor/predefined-arch-macros.c
48.66s: Clang :: Driver/clang_f_opts.c
46.87s: Clang :: Driver/cl-options.c
45.41s: Clang :: Driver/x86-target-features.c
40.58s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
40.23s: LLVM :: CodeGen/RISCV/attributes.ll
38.70s: Clang :: Driver/debug-options.c
38.26s: Clang :: Analysis/a_flaky_crash.cpp
37.08s: Clang :: Preprocessor/predefined-macros-no-warnings.c
35.48s: Clang :: Preprocessor/init.c
35.01s: Clang :: Preprocessor/x86_target_features.c

Step 11 (stage2/ubsan check) failure: stage2/ubsan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/main.py:73: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 87798 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80..
FAIL: LLVM :: tools/llvm-reduce/flaky-interestingness.ll (77839 of 87798)
******************** TEST 'LLVM :: tools/llvm-reduce/flaky-interestingness.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
rm -f /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp # RUN: at line 2
+ rm -f /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp
llvm-reduce -j=1 --delta-passes=instructions --test "/usr/bin/python3" --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/tools/llvm-reduce/Inputs/flaky-test.py --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll -o /dev/null 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll # RUN: at line 3
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll
+ llvm-reduce -j=1 --delta-passes=instructions --test /usr/bin/python3 --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/tools/llvm-reduce/Inputs/flaky-test.py --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll -o /dev/null

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
123.90s: Clang :: Driver/fsanitize.c
77.74s: Clang :: Driver/arm-cortex-cpus-2.c
76.62s: Clang :: Driver/arm-cortex-cpus-1.c
74.57s: Clang :: Preprocessor/riscv-target-features.c
72.37s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
68.95s: Clang :: OpenMP/target_update_codegen.cpp
58.78s: Clang :: Preprocessor/aarch64-target-features.c
58.05s: Clang :: Preprocessor/arm-target-features.c
51.03s: Clang :: Driver/linux-ld.c
49.42s: Clang :: Preprocessor/predefined-arch-macros.c
48.66s: Clang :: Driver/clang_f_opts.c
46.87s: Clang :: Driver/cl-options.c
45.41s: Clang :: Driver/x86-target-features.c
40.58s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
40.23s: LLVM :: CodeGen/RISCV/attributes.ll
38.70s: Clang :: Driver/debug-options.c
38.26s: Clang :: Analysis/a_flaky_crash.cpp
37.08s: Clang :: Preprocessor/predefined-macros-no-warnings.c
35.48s: Clang :: Preprocessor/init.c
35.01s: Clang :: Preprocessor/x86_target_features.c


```

</details>

https://github.com/llvm/llvm-project/pull/142626