[libcxx-commits] [libcxx] [libc++] Implements LWG3600 Making istream_iterator copy constructor trivial is an ABI break (PR #127343)

[LLVM Continuous Integration via libcxx-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux-fast` running on `sanitizer-buildbot4` while building `libcxx` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/169/builds/8960

<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-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using ld.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/main.py:72: 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: 89393 tests, 88 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
FAIL: LLVM :: ExecutionEngine/JITLink/x86-64/MachO_weak_references.s (72705 of 89393)
******************** TEST 'LLVM :: ExecutionEngine/JITLink/x86-64/MachO_weak_references.s' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: rm -rf /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp && mkdir -p /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp
+ rm -rf /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp
+ mkdir -p /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp
RUN: at line 2: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-mc -triple=x86_64-apple-macosx10.9 -filetype=obj -o /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp/macho_weak_refs.o /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_weak_references.s
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-mc -triple=x86_64-apple-macosx10.9 -filetype=obj -o /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp/macho_weak_refs.o /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_weak_references.s
RUN: at line 3: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec -check-name=jitlink-check-bar-present -abs bar=0x1 -check=/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_weak_references.s /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp/macho_weak_refs.o
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec -check-name=jitlink-check-bar-present -abs bar=0x1 -check=/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_weak_references.s /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp/macho_weak_refs.o
RUN: at line 4: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec -check-name=jitlink-check-bar-absent -check=/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_weak_references.s /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp/macho_weak_refs.o
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec -check-name=jitlink-check-bar-absent -check=/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_weak_references.s /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp/macho_weak_refs.o

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
456.86s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
332.17s: Clang :: Driver/fsanitize.c
296.94s: Clang :: OpenMP/target_update_codegen.cpp
286.37s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
285.62s: Clang :: Preprocessor/riscv-target-features.c
221.15s: Clang :: Driver/arm-cortex-cpus-2.c
216.23s: Clang :: Driver/arm-cortex-cpus-1.c
202.40s: Clang :: Preprocessor/arm-target-features.c
202.07s: Clang :: Preprocessor/aarch64-target-features.c
195.29s: LLVM :: CodeGen/AMDGPU/memintrinsic-unroll.ll
177.25s: Clang :: Analysis/a_flaky_crash.cpp
172.46s: Clang :: Preprocessor/predefined-arch-macros.c
149.67s: Clang :: CodeGen/AArch64/sve-intrinsics/acle_sve_reinterpret.c
149.49s: Clang :: Driver/linux-ld.c
142.70s: Clang :: Driver/clang_f_opts.c
141.62s: Clang :: OpenMP/target_data_codegen.cpp
140.88s: LLVM :: CodeGen/RISCV/attributes.ll
Step 10 (stage2/asan_ubsan check) failure: stage2/asan_ubsan check (failure)
...
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using ld.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:512: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/main.py:72: 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: 89393 tests, 88 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
FAIL: LLVM :: ExecutionEngine/JITLink/x86-64/MachO_weak_references.s (72705 of 89393)
******************** TEST 'LLVM :: ExecutionEngine/JITLink/x86-64/MachO_weak_references.s' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: rm -rf /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp && mkdir -p /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp
+ rm -rf /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp
+ mkdir -p /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp
RUN: at line 2: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-mc -triple=x86_64-apple-macosx10.9 -filetype=obj -o /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp/macho_weak_refs.o /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_weak_references.s
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-mc -triple=x86_64-apple-macosx10.9 -filetype=obj -o /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp/macho_weak_refs.o /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_weak_references.s
RUN: at line 3: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec -check-name=jitlink-check-bar-present -abs bar=0x1 -check=/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_weak_references.s /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp/macho_weak_refs.o
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec -check-name=jitlink-check-bar-present -abs bar=0x1 -check=/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_weak_references.s /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp/macho_weak_refs.o
RUN: at line 4: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec -check-name=jitlink-check-bar-absent -check=/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_weak_references.s /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp/macho_weak_refs.o
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec -check-name=jitlink-check-bar-absent -check=/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/MachO_weak_references.s /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/MachO_weak_references.s.tmp/macho_weak_refs.o

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
456.86s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
332.17s: Clang :: Driver/fsanitize.c
296.94s: Clang :: OpenMP/target_update_codegen.cpp
286.37s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
285.62s: Clang :: Preprocessor/riscv-target-features.c
221.15s: Clang :: Driver/arm-cortex-cpus-2.c
216.23s: Clang :: Driver/arm-cortex-cpus-1.c
202.40s: Clang :: Preprocessor/arm-target-features.c
202.07s: Clang :: Preprocessor/aarch64-target-features.c
195.29s: LLVM :: CodeGen/AMDGPU/memintrinsic-unroll.ll
177.25s: Clang :: Analysis/a_flaky_crash.cpp
172.46s: Clang :: Preprocessor/predefined-arch-macros.c
149.67s: Clang :: CodeGen/AArch64/sve-intrinsics/acle_sve_reinterpret.c
149.49s: Clang :: Driver/linux-ld.c
142.70s: Clang :: Driver/clang_f_opts.c
141.62s: Clang :: OpenMP/target_data_codegen.cpp
140.88s: LLVM :: CodeGen/RISCV/attributes.ll

```

</details>

https://github.com/llvm/llvm-project/pull/127343