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| git_commit |
commit 029cb8aff1450ed6d69f671a5e5e3e226316b42a Author: Peng Liu <winner245@hotmail.com> Date: Wed Mar 19 11:58:02 2025 -0400 [libc++] Fix copy_backward for vector<bool> with small storage types (#131560) This patch fixes an issue in libc++ where `std::copy_backward` and `ranges::copy_backward` incorrectly copy `std::vector<bool>` with small storage types (e.g., `uint8_t`, `uint16_t`). The problem arises from flawed bit mask computations involving integral promotions and sign-bit extension, leading to unintended zeroing of bits. This patch corrects the bitwise operations to ensure correct bit-level copying. Fixes #131718. |
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ldionne-old-macbook-results test results
| Run | Order | Start Time | Duration |
|---|---|---|---|
| Current | 531225 | 2025-12-16T16:40:01 | 0:00:00 |
| Previous | 531223 | 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 | 3 | 0 |
| Performance Improvements | 1 | 0 |
| Added Tests | 0 | 18 |
| Unchanged Tests | 86 | 72 |
| Total Tests | 90 |
| Performance Regressions - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 753_ns3_r | 1.48% | 10.592 | 10.750 | - | 0.00% | - |
| 710_omnetpp_r | 1.43% | 8.425 | 8.546 | - | 0.00% | - |
| 731_astcenc_r | 1.04% | 10.026 | 10.130 | - | 0.00% | - |
| Performance Improvements - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 727_cppcheck_r | -1.58% | 25.033 | 24.637 | - | 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 |
| 735_gem5_r |
| 736_ocio_r |
| 737_gmsh_r |
| 748_flightdm_r |
| 750_sealcrypto_r |
| 753_ns3_r |
| 766_femflow_r |
| 767_nest_r |
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