Nikolas Klauser 07b18c5e1b
[libc++] Optimize ranges::fill{,_n} for vector<bool>::iterator (#84642)
```
------------------------------------------------------
Benchmark                          old             new
------------------------------------------------------
bm_ranges_fill_n/1             1.64 ns         3.06 ns
bm_ranges_fill_n/2             3.45 ns         3.06 ns
bm_ranges_fill_n/3             4.88 ns         3.06 ns
bm_ranges_fill_n/4             6.46 ns         3.06 ns
bm_ranges_fill_n/5             8.03 ns         3.06 ns
bm_ranges_fill_n/6             9.65 ns         3.07 ns
bm_ranges_fill_n/7             11.5 ns         3.06 ns
bm_ranges_fill_n/8             13.0 ns         3.06 ns
bm_ranges_fill_n/16            25.9 ns         3.06 ns
bm_ranges_fill_n/64             103 ns         4.62 ns
bm_ranges_fill_n/512            711 ns         4.40 ns
bm_ranges_fill_n/4096          5642 ns         9.86 ns
bm_ranges_fill_n/32768        45135 ns         33.6 ns
bm_ranges_fill_n/262144      360818 ns          243 ns
bm_ranges_fill_n/1048576    1442828 ns          982 ns
bm_ranges_fill/1               1.63 ns         3.17 ns
bm_ranges_fill/2               3.43 ns         3.28 ns
bm_ranges_fill/3               4.97 ns         3.31 ns
bm_ranges_fill/4               6.53 ns         3.27 ns
bm_ranges_fill/5               8.12 ns         3.33 ns
bm_ranges_fill/6               9.76 ns         3.32 ns
bm_ranges_fill/7               11.6 ns         3.29 ns
bm_ranges_fill/8               13.2 ns         3.26 ns
bm_ranges_fill/16              26.3 ns         3.26 ns
bm_ranges_fill/64               104 ns         4.92 ns
bm_ranges_fill/512              716 ns         4.47 ns
bm_ranges_fill/4096            5772 ns         8.21 ns
bm_ranges_fill/32768          45778 ns         33.1 ns
bm_ranges_fill/262144        351422 ns          241 ns
bm_ranges_fill/1048576      1404710 ns          965 ns
```
2024-03-17 20:00:54 +01:00
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