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| git_commit |
commit 96a7c9b9858ac4eb366e443b00784488c190688c Author: Nikolas Klauser <nikolasklauser@berlin.de> Date: Thu Sep 25 19:48:14 2025 +0200 [libc++] Simplify vector<bool> fill constructors (#160521) #119632 introduced a code size and performance regression. This was verified by running the included benchmark against trunk and trunk with #119632 reverted. Instead of actually reverting that patch, we can inline `__construct_at_end` into the few places it's used instead, simplifying the implementation further (by not handling special cases we never actually encounter). ``` Benchmark Baseline Candidate Difference % Difference ------------------------ ---------- ----------- ------------ -------------- BM_vector_bool_size_ctor 29.91 8.56 -21.35 -71.37 ``` |
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ldionne-old-macbook-results test results
| Run | Order | Start Time | Duration |
|---|---|---|---|
| Current | 553935 | 2025-12-16T16:40:01 | 0:00:00 |
| Previous | 553884 | 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 | 16 |
| Unchanged Tests | 73 | 64 |
| Total Tests | 80 |
| Performance Regressions - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 750_sealcrypto_r | 4.59% | 18.466 | 19.314 | - | 0.00% | - |
| 710_omnetpp_r | 1.64% | 8.468 | 8.607 | - | 0.00% | - |
| 737_gmsh_r | 1.15% | 12.961 | 13.110 | - | 0.00% | - |
| Performance Improvements - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 727_cppcheck_r | -2.67% | 25.319 | 24.642 | - | 0.00% | - |
| 735_gem5_r | -1.61% | 13.474 | 13.256 | - | 0.00% | - |
| 729_abc_r | -1.46% | 19.039 | 18.760 | - | 0.00% | - |
| 707_ntest_r | -1.38% | 18.360 | 18.107 | - | 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 |
| 735_gem5_r |
| 736_ocio_r |
| 737_gmsh_r |
| 748_flightdm_r |
| 750_sealcrypto_r |
| 753_ns3_r |
| 766_femflow_r |
Report Time: 0.16s