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| git_commit |
commit c6d95c441a29a45782ff72d6cb82839b86fd0e4a Author: Vitaly Buka <vitalybuka@google.com> Date: Sat Feb 15 19:54:23 2025 -0800 [libc++] Fix initialization-order-fiasco with iostream.cpp constructors (#126995) Asan reports it after #124103. It's know case of false positive for Asan. https://github.com/google/sanitizers/wiki/AddressSanitizerInitializationOrderFiasco#false-positives It's can be avoided with `constexpr` constructors. In general order global constructors in different modules is undefined. If global constructor uses external global, they can be not constructed yet. However, implementation may contain workaround for that, or the state of non-constructed global can be still valid. Asan will still falsely report such cases, as it has no machinery to detect correctness of such cases. We need to fix/workaround the issue in libc++, as it will affect many libc++ with Asan users. |
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ldionne-old-macbook-results test results
| Run | Order | Start Time | Duration |
|---|---|---|---|
| Current | 527491 | 2025-12-16T16:40:01 | 0:00:00 |
| Previous | 527478 | 2025-12-16T16:40:01 | 0:00:00 |
| Baseline | 485288 | 2025-12-16T16:40:01 | 0:00:00 |
Tests Summary
| Status Group | # | # (B) |
|---|---|---|
| Performance Regressions | 5 | 0 |
| Performance Improvements | 2 | 0 |
| Added Tests | 0 | 17 |
| Unchanged Tests | 83 | 73 |
| Total Tests | 90 |
| Performance Regressions - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 748_flightdm_r | 2.13% | 8.800 | 8.988 | - | 0.00% | - |
| 723_llvm_r | 1.77% | 11.505 | 11.709 | - | 0.00% | - |
| 767_nest_r | 1.64% | 14.095 | 14.327 | - | 0.00% | - |
| 734_vpr_r | 1.61% | 15.399 | 15.648 | - | 0.00% | - |
| 750_sealcrypto_r | 1.02% | 18.341 | 18.528 | - | 0.00% | - |
| Performance Improvements - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 731_astcenc_r | -2.04% | 10.322 | 10.112 | - | 0.00% | - |
| 727_cppcheck_r | -1.55% | 25.006 | 24.619 | - | 0.00% | - |
| Added Tests - execution_time |
|---|
| 706_stockfish_r |
| 707_ntest_r |
| 709_cactus_r |
| 710_omnetpp_r |
| 721_gcc_r |
| 723_llvm_r |
| 727_cppcheck_r |
| 729_abc_r |
| 731_astcenc_r |
| 734_vpr_r |
| 736_ocio_r |
| 737_gmsh_r |
| 748_flightdm_r |
| 750_sealcrypto_r |
| 753_ns3_r |
| 766_femflow_r |
| 767_nest_r |
Report Time: 0.09s