[libcxx-commits] [libcxx] [libc++] Fix shared_ptr rebinding allocators to incomplete types (PR #206145)

Fri Jun 26 23:46:26 PDT 2026

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux` running on `sanitizer-buildbot1` while building `libcxx` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/66/builds/32900

<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)
...
[230/237] Generating MSAN_INST_TEST_OBJECTS.msan_test_main.cpp.x86_64.o
[231/237] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64-with-call.o
[232/237] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64.o
[233/237] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64-with-call.o
[234/237] Generating Msan-x86_64-with-call-Test
[235/237] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64.o
[236/237] Generating Msan-x86_64-Test
[236/237] Running compiler_rt regression tests
-- Testing: 6290 tests, 64 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.
FAIL: XRay-x86_64-linux :: TestCases/Posix/fdr-mode.cpp (6138 of 6290)
******************** TEST 'XRay-x86_64-linux :: TestCases/Posix/fdr-mode.cpp' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
/home/b/sanitizer-x86_64-linux/build/build_default/bin/clang  --driver-mode=g++ -fxray-instrument  -m64 -nobuiltininc -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/include -idirafter /home/b/sanitizer-x86_64-linux/build/build_default/lib/clang/23/include -resource-dir=/home/b/sanitizer-x86_64-linux/build/compiler_rt_build -Wl,-rpath,/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/lib/linux   -g -std=c++11 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/fdr-mode.cpp -o /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/bin/clang --driver-mode=g++ -fxray-instrument -m64 -nobuiltininc -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/include -idirafter /home/b/sanitizer-x86_64-linux/build/build_default/lib/clang/23/include -resource-dir=/home/b/sanitizer-x86_64-linux/build/compiler_rt_build -Wl,-rpath,/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/lib/linux -g -std=c++11 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/fdr-mode.cpp -o /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp
# note: command had no output on stdout or stderr
# RUN: at line 2
rm -f fdr-logging-test-*
# executed command: rm -f 'fdr-logging-test-*'
# note: command had no output on stdout or stderr
# RUN: at line 3
rm -f fdr-unwrite-test-*
# executed command: rm -f 'fdr-unwrite-test-*'
# note: command had no output on stdout or stderr
# RUN: at line 4
env XRAY_OPTIONS="patch_premain=false xray_logfile_base=fdr-logging-test-      xray_mode=xray-fdr verbosity=1"  env XRAY_FDR_OPTIONS="func_duration_threshold_us=0"       /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp 2>&1 | FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/fdr-mode.cpp
# executed command: env 'XRAY_OPTIONS=patch_premain=false xray_logfile_base=fdr-logging-test-      xray_mode=xray-fdr verbosity=1' env XRAY_FDR_OPTIONS=func_duration_threshold_us=0 /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp
# note: command had no output on stdout or stderr
# executed command: FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/fdr-mode.cpp
# note: command had no output on stdout or stderr
# RUN: at line 8
env XRAY_OPTIONS="patch_premain=false      xray_logfile_base=fdr-unwrite-test- xray_mode=xray-fdr      verbosity=1"  env XRAY_FDR_OPTIONS="func_duration_threshold_us=5000"       /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp 2>&1 | FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/fdr-mode.cpp
# executed command: env 'XRAY_OPTIONS=patch_premain=false      xray_logfile_base=fdr-unwrite-test- xray_mode=xray-fdr      verbosity=1' env XRAY_FDR_OPTIONS=func_duration_threshold_us=5000 /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp
# note: command had no output on stdout or stderr
# executed command: FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/fdr-mode.cpp
# note: command had no output on stdout or stderr
# RUN: at line 13
ls fdr-logging-test-* | head -1 | tr -d '\n' > /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp.log
# executed command: ls 'fdr-logging-test-*'
# note: command had no output on stdout or stderr
# executed command: head -1
# note: command had no output on stdout or stderr
# executed command: tr -d '\n'
# note: command had no output on stdout or stderr
# RUN: at line 14
Step 16 (test standalone compiler-rt) failure: test standalone compiler-rt (failure)
...
[230/237] Generating MSAN_INST_TEST_OBJECTS.msan_test_main.cpp.x86_64.o
[231/237] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64-with-call.o
[232/237] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64.o
[233/237] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64-with-call.o
[234/237] Generating Msan-x86_64-with-call-Test
[235/237] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64.o
[236/237] Generating Msan-x86_64-Test
[236/237] Running compiler_rt regression tests
-- Testing: 6290 tests, 64 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.
FAIL: XRay-x86_64-linux :: TestCases/Posix/fdr-mode.cpp (6138 of 6290)
******************** TEST 'XRay-x86_64-linux :: TestCases/Posix/fdr-mode.cpp' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
/home/b/sanitizer-x86_64-linux/build/build_default/bin/clang  --driver-mode=g++ -fxray-instrument  -m64 -nobuiltininc -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/include -idirafter /home/b/sanitizer-x86_64-linux/build/build_default/lib/clang/23/include -resource-dir=/home/b/sanitizer-x86_64-linux/build/compiler_rt_build -Wl,-rpath,/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/lib/linux   -g -std=c++11 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/fdr-mode.cpp -o /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/bin/clang --driver-mode=g++ -fxray-instrument -m64 -nobuiltininc -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/include -idirafter /home/b/sanitizer-x86_64-linux/build/build_default/lib/clang/23/include -resource-dir=/home/b/sanitizer-x86_64-linux/build/compiler_rt_build -Wl,-rpath,/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/lib/linux -g -std=c++11 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/fdr-mode.cpp -o /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp
# note: command had no output on stdout or stderr
# RUN: at line 2
rm -f fdr-logging-test-*
# executed command: rm -f 'fdr-logging-test-*'
# note: command had no output on stdout or stderr
# RUN: at line 3
rm -f fdr-unwrite-test-*
# executed command: rm -f 'fdr-unwrite-test-*'
# note: command had no output on stdout or stderr
# RUN: at line 4
env XRAY_OPTIONS="patch_premain=false xray_logfile_base=fdr-logging-test-      xray_mode=xray-fdr verbosity=1"  env XRAY_FDR_OPTIONS="func_duration_threshold_us=0"       /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp 2>&1 | FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/fdr-mode.cpp
# executed command: env 'XRAY_OPTIONS=patch_premain=false xray_logfile_base=fdr-logging-test-      xray_mode=xray-fdr verbosity=1' env XRAY_FDR_OPTIONS=func_duration_threshold_us=0 /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp
# note: command had no output on stdout or stderr
# executed command: FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/fdr-mode.cpp
# note: command had no output on stdout or stderr
# RUN: at line 8
env XRAY_OPTIONS="patch_premain=false      xray_logfile_base=fdr-unwrite-test- xray_mode=xray-fdr      verbosity=1"  env XRAY_FDR_OPTIONS="func_duration_threshold_us=5000"       /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp 2>&1 | FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/fdr-mode.cpp
# executed command: env 'XRAY_OPTIONS=patch_premain=false      xray_logfile_base=fdr-unwrite-test- xray_mode=xray-fdr      verbosity=1' env XRAY_FDR_OPTIONS=func_duration_threshold_us=5000 /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp
# note: command had no output on stdout or stderr
# executed command: FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/fdr-mode.cpp
# note: command had no output on stdout or stderr
# RUN: at line 13
ls fdr-logging-test-* | head -1 | tr -d '\n' > /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/fdr-mode.cpp.tmp.log
# executed command: ls 'fdr-logging-test-*'
# note: command had no output on stdout or stderr
# executed command: head -1
# note: command had no output on stdout or stderr
# executed command: tr -d '\n'
# note: command had no output on stdout or stderr
# RUN: at line 14

```

</details>

https://github.com/llvm/llvm-project/pull/206145