[clang] [Clang] Clarify the `[[trivial_abi]]` documentation. (PR #143243)

LLVM Continuous Integration via cfe-commits cfe-commits at lists.llvm.org
Mon Jun 9 09:30:58 PDT 2025 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux-bootstrap-hwasan` running on `sanitizer-buildbot12` while building `clang` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/55/builds/12538

<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-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/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: 87894 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 
FAIL: LLVM :: ExecutionEngine/JITLink/x86-64/MachO_archive_load_hidden_expect_failure.s (53254 of 87894)
******************** TEST 'LLVM :: ExecutionEngine/JITLink/x86-64/MachO_archive_load_hidden_expect_failure.s' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
rm -rf /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp && mkdir -p /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp # RUN: at line 1
+ rm -rf /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp
+ mkdir -p /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-mc -triple x86_64-apple-macosx10.9 -filetype=obj    -o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_extra_def_strong.o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/Inputs/MachO_extra_def_strong.s # RUN: at line 2
+ /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-mc -triple x86_64-apple-macosx10.9 -filetype=obj -o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_extra_def_strong.o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/Inputs/MachO_extra_def_strong.s
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-ar crs /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/libExtraDef.a /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_extra_def_strong.o # RUN: at line 4
+ /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-ar crs /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/libExtraDef.a /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_extra_def_strong.o
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-mc -triple x86_64-apple-macosx10.9 -filetype=obj    -o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_archive_load_hidden_support.o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_archive_load_hidden_expect_failure.s # RUN: at line 5
+ /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-mc -triple x86_64-apple-macosx10.9 -filetype=obj -o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_archive_load_hidden_support.o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_archive_load_hidden_expect_failure.s
not /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-jitlink -noexec /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_archive_load_hidden_support.o -lFoo    -jd Foo -L/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp -hidden-lExtraDef # RUN: at line 7
+ not /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-jitlink -noexec /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_archive_load_hidden_support.o -lFoo -jd Foo -L/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp -hidden-lExtraDef
llvm-jitlink error: Symbols not found: [ ExtraDef ]
libc++abi: Pure virtual function called!
error: Aborted

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
61.58s: Clang :: Driver/fsanitize.c
43.42s: Clang :: Preprocessor/riscv-target-features.c
39.80s: Clang :: Driver/arm-cortex-cpus-2.c
38.64s: Clang :: Driver/arm-cortex-cpus-1.c
36.15s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
35.00s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
33.18s: Clang :: OpenMP/target_update_codegen.cpp
31.13s: LLVM :: CodeGen/RISCV/attributes.ll
31.02s: Clang :: Preprocessor/aarch64-target-features.c
30.86s: Clang :: Preprocessor/arm-target-features.c
29.01s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
25.69s: Clang :: Driver/linux-ld.c
Step 11 (stage2/hwasan check) failure: stage2/hwasan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/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: 87894 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 
FAIL: LLVM :: ExecutionEngine/JITLink/x86-64/MachO_archive_load_hidden_expect_failure.s (53254 of 87894)
******************** TEST 'LLVM :: ExecutionEngine/JITLink/x86-64/MachO_archive_load_hidden_expect_failure.s' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
rm -rf /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp && mkdir -p /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp # RUN: at line 1
+ rm -rf /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp
+ mkdir -p /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-mc -triple x86_64-apple-macosx10.9 -filetype=obj    -o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_extra_def_strong.o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/Inputs/MachO_extra_def_strong.s # RUN: at line 2
+ /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-mc -triple x86_64-apple-macosx10.9 -filetype=obj -o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_extra_def_strong.o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/Inputs/MachO_extra_def_strong.s
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-ar crs /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/libExtraDef.a /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_extra_def_strong.o # RUN: at line 4
+ /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-ar crs /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/libExtraDef.a /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_extra_def_strong.o
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-mc -triple x86_64-apple-macosx10.9 -filetype=obj    -o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_archive_load_hidden_support.o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_archive_load_hidden_expect_failure.s # RUN: at line 5
+ /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-mc -triple x86_64-apple-macosx10.9 -filetype=obj -o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_archive_load_hidden_support.o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_archive_load_hidden_expect_failure.s
not /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-jitlink -noexec /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_archive_load_hidden_support.o -lFoo    -jd Foo -L/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp -hidden-lExtraDef # RUN: at line 7
+ not /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-jitlink -noexec /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp/MachO_archive_load_hidden_support.o -lFoo -jd Foo -L/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_archive_load_hidden_expect_failure.s.tmp -hidden-lExtraDef
llvm-jitlink error: Symbols not found: [ ExtraDef ]
libc++abi: Pure virtual function called!
error: Aborted

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
61.58s: Clang :: Driver/fsanitize.c
43.42s: Clang :: Preprocessor/riscv-target-features.c
39.80s: Clang :: Driver/arm-cortex-cpus-2.c
38.64s: Clang :: Driver/arm-cortex-cpus-1.c
36.15s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
35.00s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
33.18s: Clang :: OpenMP/target_update_codegen.cpp
31.13s: LLVM :: CodeGen/RISCV/attributes.ll
31.02s: Clang :: Preprocessor/aarch64-target-features.c
30.86s: Clang :: Preprocessor/arm-target-features.c
29.01s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
25.69s: Clang :: Driver/linux-ld.c

```

</details>

https://github.com/llvm/llvm-project/pull/143243

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