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| git_commit |
commit 7717a549e91c4fb554b78fce38e75b0147fb6cac Author: Peng Liu <winner245@hotmail.com> Date: Wed Feb 26 12:18:25 2025 -0500 [libc++] Optimize ranges::equal for vector<bool>::iterator (#121084) This PR optimizes the performance of `std::ranges::equal` for `vector<bool>::iterator`, addressing a subtask outlined in issue #64038. The optimizations yield performance improvements of up to 188x for aligned equality comparison and 82x for unaligned equality comparison. Moreover, 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 | 528661 | 2025-12-16T16:40:01 | 0:00:00 |
| Previous | 528654 | 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 | 3 | 0 |
| Added Tests | 0 | 18 |
| Unchanged Tests | 84 | 72 |
| Total Tests | 90 |
| Performance Regressions - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 707_ntest_r | 2.04% | 17.929 | 18.294 | - | 0.00% | - |
| 727_cppcheck_r | 1.92% | 25.425 | 25.914 | - | 0.00% | - |
| 721_gcc_r | 1.37% | 12.901 | 13.078 | - | 0.00% | - |
| Performance Improvements - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 734_vpr_r | -1.63% | 15.589 | 15.335 | - | 0.00% | - |
| 710_omnetpp_r | -1.34% | 8.793 | 8.676 | - | 0.00% | - |
| 729_abc_r | -1.04% | 18.822 | 18.626 | - | 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: 0.12s