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| git_commit |
commit a12744ff05bbc2d0de711afb8b3a1c7a03a33914 Author: Peng Liu <winner245@hotmail.com> Date: Tue Mar 4 17:15:36 2025 -0500 [libc++] Optimize ranges::swap_ranges for vector<bool>::iterator (#121150) This PR optimizes the performance of `std::ranges::swap_ranges` for `vector<bool>::iterator`, addressing a subtask outlined in issue #64038. The optimizations yield performance improvements of up to **611x** for aligned range swap and **78x** for unaligned range swap comparison. Additionally, comprehensive tests covering up to 4 storage words (256 bytes) with odd and even bit sizes are provided, which validate the proposed optimizations in this patch. |
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ldionne-old-macbook-results test results
| Run | Order | Start Time | Duration |
|---|---|---|---|
| Current | 529394 | 2025-12-16T16:40:01 | 0:00:00 |
| Previous | 529401 | 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 | 4 | 0 |
| Added Tests | 0 | 18 |
| Unchanged Tests | 83 | 72 |
| Total Tests | 90 |
| Performance Regressions - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 727_cppcheck_r | 3.20% | 24.483 | 25.266 | - | 0.00% | - |
| 710_omnetpp_r | 1.65% | 8.464 | 8.604 | - | 0.00% | - |
| 767_nest_r | 1.13% | 14.154 | 14.314 | - | 0.00% | - |
| Performance Improvements - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 736_ocio_r | -2.57% | 16.564 | 16.139 | - | 0.00% | - |
| 735_gem5_r | -2.52% | 14.063 | 13.708 | - | 0.00% | - |
| 729_abc_r | -1.79% | 18.991 | 18.651 | - | 0.00% | - |
| 753_ns3_r | -1.12% | 10.826 | 10.705 | - | 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 |
Report Time: 0.09s