LoS
dab6463e74
[libc++] Remove duplicated _LIBCPP_HIDE_FROM_ABI from a few declarations ( #122323 )
2025-01-10 11:42:42 -05:00
Louis Dionne
c664a7f975
[libc++] Remove obsolete bsd_locale_defaults.h ( #122276 )
...
Supported platforms who used to need this header now go through the new
locale base API instead, so that header is not required anymore.
2025-01-10 11:03:50 -05:00
A. Jiang
85ca551763
[libc++][chrono] Entirely remove relational operators for std::chrono::weekday ( #122428 )
...
Follows-up #98730 .
2025-01-10 13:49:52 +01:00
Nikolas Klauser
24bf0e4eb6
[libc++] Disable _LIBCPP_NODEBUG temporarily ( #122393 )
...
This should be reverted once the crash reported in #118710 has been
analyzed.
2025-01-10 01:37:24 +01:00
Louis Dionne
c492a228e9
[libc++] Add missing _LIBCPP_NODEBUG on internal aliases
2025-01-09 16:03:39 -05:00
Дмитрий Изволов
69b54c1a05
[libcxx][algorithm] Optimize std::stable_sort via radix sort algorithm ( #104683 )
...
The radix sort (LSD) algorithm allows to speed up std::stable_sort
dramatically in case we sort integers.
The speed up varies from a relatively small to x10 times, depending on
type of sorted elements and the initial state of the sorted array.
```
Running ./libcxx/test/benchmarks/stable_sort.bench.out
Run on (12 X 2600 MHz CPU s)
CPU Caches:
L1 Data 32 KiB
L1 Instruction 32 KiB
L2 Unified 256 KiB (x6)
L3 Unified 12288 KiB
Load Average: 3.48, 3.38, 3.08
---------------------------------------------------------------------------
Benchmark After Before
---------------------------------------------------------------------------
BM_StableSort_int8_Random_1 3.39 ns 3.58 ns
BM_StableSort_int8_Random_4 21.1 ns 21.9 ns
BM_StableSort_int8_Random_16 142 ns 147 ns
BM_StableSort_int8_Random_64 893 ns 903 ns
BM_StableSort_int8_Random_256 409 ns 5810 ns
BM_StableSort_int8_Random_1024 1235 ns 29973 ns
BM_StableSort_int8_Random_4096 4410 ns 141880 ns
BM_StableSort_int8_Random_16384 18044 ns 620540 ns
BM_StableSort_int8_Random_65536 144030 ns 2592013 ns
BM_StableSort_int8_Random_262144 858350 ns 10935814 ns
BM_StableSort_int8_Random_524288 2929988 ns 27060729 ns
BM_StableSort_int8_Random_1048576 6058292 ns 49622720 ns
BM_StableSort_int8_Ascending_1 3.42 ns 3.92 ns
BM_StableSort_int8_Ascending_4 5.86 ns 8.08 ns
BM_StableSort_int8_Ascending_16 10.6 ns 12.0 ns
BM_StableSort_int8_Ascending_64 28.9 ns 30.6 ns
BM_StableSort_int8_Ascending_256 415 ns 391 ns
BM_StableSort_int8_Ascending_1024 1666 ns 2309 ns
BM_StableSort_int8_Ascending_4096 7748 ns 12269 ns
BM_StableSort_int8_Ascending_16384 40588 ns 60181 ns
BM_StableSort_int8_Ascending_65536 178843 ns 298221 ns
BM_StableSort_int8_Ascending_262144 919959 ns 1402692 ns
BM_StableSort_int8_Ascending_524288 2397397 ns 3036984 ns
BM_StableSort_int8_Ascending_1048576 5080043 ns 7218581 ns
BM_StableSort_int8_Descending_1 3.44 ns 3.53 ns
BM_StableSort_int8_Descending_4 7.94 ns 8.29 ns
BM_StableSort_int8_Descending_16 59.6 ns 57.7 ns
BM_StableSort_int8_Descending_64 1051 ns 1027 ns
BM_StableSort_int8_Descending_256 422 ns 4718 ns
BM_StableSort_int8_Descending_1024 1676 ns 21044 ns
BM_StableSort_int8_Descending_4096 7766 ns 64827 ns
BM_StableSort_int8_Descending_16384 40230 ns 93981 ns
BM_StableSort_int8_Descending_65536 190978 ns 421151 ns
BM_StableSort_int8_Descending_262144 1055141 ns 1918927 ns
BM_StableSort_int8_Descending_524288 2875115 ns 3809153 ns
BM_StableSort_int8_Descending_1048576 5854135 ns 8713690 ns
BM_StableSort_int8_SingleElement_1 3.52 ns 3.46 ns
BM_StableSort_int8_SingleElement_4 6.25 ns 5.79 ns
BM_StableSort_int8_SingleElement_16 10.7 ns 11.4 ns
BM_StableSort_int8_SingleElement_64 29.3 ns 30.3 ns
BM_StableSort_int8_SingleElement_256 858 ns 380 ns
BM_StableSort_int8_SingleElement_1024 3036 ns 2231 ns
BM_StableSort_int8_SingleElement_4096 11580 ns 11866 ns
BM_StableSort_int8_SingleElement_16384 44956 ns 59621 ns
BM_StableSort_int8_SingleElement_65536 182006 ns 297853 ns
BM_StableSort_int8_SingleElement_262144 962181 ns 1432857 ns
BM_StableSort_int8_SingleElement_524288 2256687 ns 2975707 ns
BM_StableSort_int8_SingleElement_1048576 4522556 ns 6949948 ns
BM_StableSort_int8_PipeOrgan_1 3.26 ns 3.64 ns
BM_StableSort_int8_PipeOrgan_4 6.21 ns 6.58 ns
BM_StableSort_int8_PipeOrgan_16 23.7 ns 25.4 ns
BM_StableSort_int8_PipeOrgan_64 250 ns 248 ns
BM_StableSort_int8_PipeOrgan_256 414 ns 2498 ns
BM_StableSort_int8_PipeOrgan_1024 1697 ns 10946 ns
BM_StableSort_int8_PipeOrgan_4096 7840 ns 37238 ns
BM_StableSort_int8_PipeOrgan_16384 41402 ns 74805 ns
BM_StableSort_int8_PipeOrgan_65536 180107 ns 357891 ns
BM_StableSort_int8_PipeOrgan_262144 988273 ns 1647296 ns
BM_StableSort_int8_PipeOrgan_524288 2547374 ns 3245991 ns
BM_StableSort_int8_PipeOrgan_1048576 5128783 ns 7342444 ns
BM_StableSort_int8_QuickSortAdversary_1 3.14 ns 4.01 ns
BM_StableSort_int8_QuickSortAdversary_4 6.05 ns 7.02 ns
BM_StableSort_int8_QuickSortAdversary_16 10.5 ns 11.9 ns
BM_StableSort_int8_QuickSortAdversary_64 520 ns 516 ns
BM_StableSort_int8_QuickSortAdversary_256 920 ns 386 ns
BM_StableSort_int8_QuickSortAdversary_1024 3083 ns 2299 ns
BM_StableSort_int8_QuickSortAdversary_4096 11659 ns 12295 ns
BM_StableSort_int8_QuickSortAdversary_16384 45721 ns 60931 ns
BM_StableSort_int8_QuickSortAdversary_65536 186334 ns 295423 ns
BM_StableSort_int8_QuickSortAdversary_262144 946262 ns 1399973 ns
BM_StableSort_int8_QuickSortAdversary_524288 2282004 ns 2832266 ns
BM_StableSort_int8_QuickSortAdversary_1048576 4691123 ns 6963253 ns
BM_StableSort_uint8_Random_1 3.11 ns 3.44 ns
BM_StableSort_uint8_Random_4 21.9 ns 23.1 ns
BM_StableSort_uint8_Random_16 154 ns 171 ns
BM_StableSort_uint8_Random_64 1000 ns 1051 ns
BM_StableSort_uint8_Random_256 402 ns 6498 ns
BM_StableSort_uint8_Random_1024 1176 ns 35310 ns
BM_StableSort_uint8_Random_4096 4415 ns 164087 ns
BM_StableSort_uint8_Random_16384 17849 ns 686769 ns
BM_StableSort_uint8_Random_65536 146109 ns 2932051 ns
BM_StableSort_uint8_Random_262144 876710 ns 12163988 ns
BM_StableSort_uint8_Random_524288 2858089 ns 26458830 ns
BM_StableSort_uint8_Random_1048576 5766942 ns 54836214 ns
BM_StableSort_uint8_Ascending_1 3.11 ns 3.43 ns
BM_StableSort_uint8_Ascending_4 6.18 ns 7.24 ns
BM_StableSort_uint8_Ascending_16 14.5 ns 17.0 ns
BM_StableSort_uint8_Ascending_64 50.7 ns 59.2 ns
BM_StableSort_uint8_Ascending_256 395 ns 536 ns
BM_StableSort_uint8_Ascending_1024 1752 ns 2956 ns
BM_StableSort_uint8_Ascending_4096 7785 ns 15146 ns
BM_StableSort_uint8_Ascending_16384 41442 ns 74136 ns
BM_StableSort_uint8_Ascending_65536 180879 ns 354261 ns
BM_StableSort_uint8_Ascending_262144 945880 ns 1674256 ns
BM_StableSort_uint8_Ascending_524288 2287832 ns 3138581 ns
BM_StableSort_uint8_Ascending_1048576 4630290 ns 7296278 ns
BM_StableSort_uint8_Descending_1 3.19 ns 3.63 ns
BM_StableSort_uint8_Descending_4 9.60 ns 11.5 ns
BM_StableSort_uint8_Descending_16 78.3 ns 86.0 ns
BM_StableSort_uint8_Descending_64 1265 ns 1308 ns
BM_StableSort_uint8_Descending_256 395 ns 6556 ns
BM_StableSort_uint8_Descending_1024 1712 ns 24669 ns
BM_StableSort_uint8_Descending_4096 7748 ns 83407 ns
BM_StableSort_uint8_Descending_16384 40779 ns 104043 ns
BM_StableSort_uint8_Descending_65536 181560 ns 467680 ns
BM_StableSort_uint8_Descending_262144 1146627 ns 2102769 ns
BM_StableSort_uint8_Descending_524288 2874096 ns 4572229 ns
BM_StableSort_uint8_Descending_1048576 5873195 ns 10170663 ns
BM_StableSort_uint8_SingleElement_1 3.28 ns 3.58 ns
BM_StableSort_uint8_SingleElement_4 6.44 ns 7.40 ns
BM_StableSort_uint8_SingleElement_16 14.9 ns 16.4 ns
BM_StableSort_uint8_SingleElement_64 51.2 ns 52.9 ns
BM_StableSort_uint8_SingleElement_256 876 ns 490 ns
BM_StableSort_uint8_SingleElement_1024 3041 ns 2750 ns
BM_StableSort_uint8_SingleElement_4096 11947 ns 14326 ns
BM_StableSort_uint8_SingleElement_16384 46669 ns 69984 ns
BM_StableSort_uint8_SingleElement_65536 197903 ns 328961 ns
BM_StableSort_uint8_SingleElement_262144 1031466 ns 1551436 ns
BM_StableSort_uint8_SingleElement_524288 2447672 ns 3049553 ns
BM_StableSort_uint8_SingleElement_1048576 4793087 ns 7615245 ns
BM_StableSort_uint8_PipeOrgan_1 3.38 ns 3.56 ns
BM_StableSort_uint8_PipeOrgan_4 7.16 ns 8.70 ns
BM_StableSort_uint8_PipeOrgan_16 31.7 ns 35.3 ns
BM_StableSort_uint8_PipeOrgan_64 326 ns 366 ns
BM_StableSort_uint8_PipeOrgan_256 409 ns 2942 ns
BM_StableSort_uint8_PipeOrgan_1024 1994 ns 12571 ns
BM_StableSort_uint8_PipeOrgan_4096 8086 ns 46278 ns
BM_StableSort_uint8_PipeOrgan_16384 41749 ns 79813 ns
BM_StableSort_uint8_PipeOrgan_65536 180697 ns 375120 ns
BM_StableSort_uint8_PipeOrgan_262144 1004899 ns 1676143 ns
BM_StableSort_uint8_PipeOrgan_524288 2456081 ns 3333949 ns
BM_StableSort_uint8_PipeOrgan_1048576 5030857 ns 7591303 ns
BM_StableSort_uint8_QuickSortAdversary_1 3.12 ns 3.46 ns
BM_StableSort_uint8_QuickSortAdversary_4 7.25 ns 6.83 ns
BM_StableSort_uint8_QuickSortAdversary_16 14.6 ns 16.2 ns
BM_StableSort_uint8_QuickSortAdversary_64 650 ns 665 ns
BM_StableSort_uint8_QuickSortAdversary_256 395 ns 2982 ns
BM_StableSort_uint8_QuickSortAdversary_1024 3125 ns 2583 ns
BM_StableSort_uint8_QuickSortAdversary_4096 11797 ns 13929 ns
BM_StableSort_uint8_QuickSortAdversary_16384 45803 ns 66513 ns
BM_StableSort_uint8_QuickSortAdversary_65536 190745 ns 313467 ns
BM_StableSort_uint8_QuickSortAdversary_262144 974646 ns 1469014 ns
BM_StableSort_uint8_QuickSortAdversary_524288 2317553 ns 3022065 ns
BM_StableSort_uint8_QuickSortAdversary_1048576 4898703 ns 6854079 ns
BM_StableSort_int16_Random_1 3.94 ns 3.49 ns
BM_StableSort_int16_Random_4 20.8 ns 23.2 ns
BM_StableSort_int16_Random_16 133 ns 163 ns
BM_StableSort_int16_Random_64 903 ns 953 ns
BM_StableSort_int16_Random_256 5638 ns 6258 ns
BM_StableSort_int16_Random_1024 3056 ns 34587 ns
BM_StableSort_int16_Random_4096 10596 ns 168397 ns
BM_StableSort_int16_Random_16384 49908 ns 753031 ns
BM_StableSort_int16_Random_65536 444605 ns 3838368 ns
BM_StableSort_int16_Random_262144 2419345 ns 15657285 ns
BM_StableSort_int16_Random_524288 7984040 ns 32726933 ns
BM_StableSort_int16_Random_1048576 16092424 ns 67999766 ns
BM_StableSort_int16_Ascending_1 3.40 ns 3.43 ns
BM_StableSort_int16_Ascending_4 5.45 ns 5.79 ns
BM_StableSort_int16_Ascending_16 12.0 ns 15.3 ns
BM_StableSort_int16_Ascending_64 39.6 ns 52.6 ns
BM_StableSort_int16_Ascending_256 470 ns 550 ns
BM_StableSort_int16_Ascending_1024 1686 ns 2707 ns
BM_StableSort_int16_Ascending_4096 5676 ns 14165 ns
BM_StableSort_int16_Ascending_16384 21413 ns 69483 ns
BM_StableSort_int16_Ascending_65536 88010 ns 334466 ns
BM_StableSort_int16_Ascending_262144 567239 ns 1570620 ns
BM_StableSort_int16_Ascending_524288 1553063 ns 3424666 ns
BM_StableSort_int16_Ascending_1048576 3145577 ns 8499649 ns
BM_StableSort_int16_Descending_1 3.22 ns 3.54 ns
BM_StableSort_int16_Descending_4 6.85 ns 10.2 ns
BM_StableSort_int16_Descending_16 62.7 ns 62.2 ns
BM_StableSort_int16_Descending_64 1138 ns 1036 ns
BM_StableSort_int16_Descending_256 5541 ns 4696 ns
BM_StableSort_int16_Descending_1024 3046 ns 19577 ns
BM_StableSort_int16_Descending_4096 10962 ns 79149 ns
BM_StableSort_int16_Descending_16384 58182 ns 327709 ns
BM_StableSort_int16_Descending_65536 447025 ns 1424896 ns
BM_StableSort_int16_Descending_262144 1104973 ns 5921903 ns
BM_StableSort_int16_Descending_524288 2547840 ns 17956789 ns
BM_StableSort_int16_Descending_1048576 5093555 ns 17044318 ns
BM_StableSort_int16_SingleElement_1 3.56 ns 3.96 ns
BM_StableSort_int16_SingleElement_4 5.75 ns 6.72 ns
BM_StableSort_int16_SingleElement_16 12.4 ns 16.1 ns
BM_StableSort_int16_SingleElement_64 36.9 ns 54.4 ns
BM_StableSort_int16_SingleElement_256 473 ns 557 ns
BM_StableSort_int16_SingleElement_1024 1828 ns 2826 ns
BM_StableSort_int16_SingleElement_4096 6239 ns 14252 ns
BM_StableSort_int16_SingleElement_16384 23695 ns 70369 ns
BM_StableSort_int16_SingleElement_65536 93281 ns 361641 ns
BM_StableSort_int16_SingleElement_262144 599078 ns 1640216 ns
BM_StableSort_int16_SingleElement_524288 1659678 ns 3343087 ns
BM_StableSort_int16_SingleElement_1048576 3184033 ns 7770271 ns
BM_StableSort_int16_PipeOrgan_1 3.75 ns 3.76 ns
BM_StableSort_int16_PipeOrgan_4 5.94 ns 7.74 ns
BM_StableSort_int16_PipeOrgan_16 26.7 ns 25.9 ns
BM_StableSort_int16_PipeOrgan_64 300 ns 263 ns
BM_StableSort_int16_PipeOrgan_256 2769 ns 2760 ns
BM_StableSort_int16_PipeOrgan_1024 2996 ns 10544 ns
BM_StableSort_int16_PipeOrgan_4096 11641 ns 44750 ns
BM_StableSort_int16_PipeOrgan_16384 57224 ns 200464 ns
BM_StableSort_int16_PipeOrgan_65536 416873 ns 887631 ns
BM_StableSort_int16_PipeOrgan_262144 843264 ns 3588669 ns
BM_StableSort_int16_PipeOrgan_524288 2027741 ns 11056924 ns
BM_StableSort_int16_PipeOrgan_1048576 4223773 ns 13261276 ns
BM_StableSort_int16_QuickSortAdversary_1 3.83 ns 3.68 ns
BM_StableSort_int16_QuickSortAdversary_4 5.55 ns 6.93 ns
BM_StableSort_int16_QuickSortAdversary_16 12.3 ns 15.2 ns
BM_StableSort_int16_QuickSortAdversary_64 646 ns 632 ns
BM_StableSort_int16_QuickSortAdversary_256 2751 ns 2542 ns
BM_StableSort_int16_QuickSortAdversary_1024 3028 ns 16901 ns
BM_StableSort_int16_QuickSortAdversary_4096 10862 ns 80222 ns
BM_StableSort_int16_QuickSortAdversary_16384 57753 ns 317281 ns
BM_StableSort_int16_QuickSortAdversary_65536 94064 ns 328502 ns
BM_StableSort_int16_QuickSortAdversary_262144 557796 ns 1613208 ns
BM_StableSort_int16_QuickSortAdversary_524288 1518451 ns 3479740 ns
BM_StableSort_int16_QuickSortAdversary_1048576 3165129 ns 7655880 ns
BM_StableSort_uint16_Random_1 3.26 ns 3.44 ns
BM_StableSort_uint16_Random_4 21.1 ns 22.2 ns
BM_StableSort_uint16_Random_16 157 ns 156 ns
BM_StableSort_uint16_Random_64 955 ns 947 ns
BM_StableSort_uint16_Random_256 5886 ns 6097 ns
BM_StableSort_uint16_Random_1024 2787 ns 30776 ns
BM_StableSort_uint16_Random_4096 9973 ns 155652 ns
BM_StableSort_uint16_Random_16384 48628 ns 741072 ns
BM_StableSort_uint16_Random_65536 439609 ns 3478966 ns
BM_StableSort_uint16_Random_262144 2336983 ns 15197642 ns
BM_StableSort_uint16_Random_524288 7888701 ns 34234254 ns
BM_StableSort_uint16_Random_1048576 14865180 ns 68516386 ns
BM_StableSort_uint16_Ascending_1 3.33 ns 4.00 ns
BM_StableSort_uint16_Ascending_4 5.79 ns 6.64 ns
BM_StableSort_uint16_Ascending_16 14.9 ns 15.5 ns
BM_StableSort_uint16_Ascending_64 50.2 ns 52.5 ns
BM_StableSort_uint16_Ascending_256 538 ns 546 ns
BM_StableSort_uint16_Ascending_1024 1645 ns 2652 ns
BM_StableSort_uint16_Ascending_4096 5559 ns 14517 ns
BM_StableSort_uint16_Ascending_16384 22803 ns 70275 ns
BM_StableSort_uint16_Ascending_65536 83109 ns 333446 ns
BM_StableSort_uint16_Ascending_262144 562667 ns 1568670 ns
BM_StableSort_uint16_Ascending_524288 1564646 ns 3059839 ns
BM_StableSort_uint16_Ascending_1048576 3178826 ns 7048327 ns
BM_StableSort_uint16_Descending_1 3.34 ns 3.93 ns
BM_StableSort_uint16_Descending_4 8.75 ns 9.73 ns
BM_StableSort_uint16_Descending_16 55.9 ns 55.5 ns
BM_StableSort_uint16_Descending_64 1021 ns 1035 ns
BM_StableSort_uint16_Descending_256 4752 ns 4931 ns
BM_StableSort_uint16_Descending_1024 2982 ns 19727 ns
BM_StableSort_uint16_Descending_4096 10432 ns 83165 ns
BM_StableSort_uint16_Descending_16384 56593 ns 326131 ns
BM_StableSort_uint16_Descending_65536 439134 ns 1371346 ns
BM_StableSort_uint16_Descending_262144 1220925 ns 5735665 ns
BM_StableSort_uint16_Descending_524288 2767234 ns 16758330 ns
BM_StableSort_uint16_Descending_1048576 5673769 ns 17541715 ns
BM_StableSort_uint16_SingleElement_1 3.53 ns 3.73 ns
BM_StableSort_uint16_SingleElement_4 6.27 ns 5.81 ns
BM_StableSort_uint16_SingleElement_16 14.8 ns 15.1 ns
BM_StableSort_uint16_SingleElement_64 51.5 ns 50.9 ns
BM_StableSort_uint16_SingleElement_256 536 ns 540 ns
BM_StableSort_uint16_SingleElement_1024 1669 ns 2690 ns
BM_StableSort_uint16_SingleElement_4096 5840 ns 14230 ns
BM_StableSort_uint16_SingleElement_16384 22468 ns 68524 ns
BM_StableSort_uint16_SingleElement_65536 89845 ns 332187 ns
BM_StableSort_uint16_SingleElement_262144 590736 ns 1550868 ns
BM_StableSort_uint16_SingleElement_524288 1573677 ns 3095703 ns
BM_StableSort_uint16_SingleElement_1048576 3183421 ns 8251180 ns
BM_StableSort_uint16_PipeOrgan_1 3.70 ns 3.64 ns
BM_StableSort_uint16_PipeOrgan_4 7.01 ns 6.81 ns
BM_StableSort_uint16_PipeOrgan_16 25.7 ns 26.4 ns
BM_StableSort_uint16_PipeOrgan_64 283 ns 277 ns
BM_StableSort_uint16_PipeOrgan_256 2562 ns 2852 ns
BM_StableSort_uint16_PipeOrgan_1024 2863 ns 10892 ns
BM_StableSort_uint16_PipeOrgan_4096 10585 ns 45668 ns
BM_StableSort_uint16_PipeOrgan_16384 59151 ns 194358 ns
BM_StableSort_uint16_PipeOrgan_65536 508579 ns 854692 ns
BM_StableSort_uint16_PipeOrgan_262144 901294 ns 3606346 ns
BM_StableSort_uint16_PipeOrgan_524288 2192498 ns 10449279 ns
BM_StableSort_uint16_PipeOrgan_1048576 4204368 ns 11956606 ns
BM_StableSort_uint16_QuickSortAdversary_1 3.20 ns 3.63 ns
BM_StableSort_uint16_QuickSortAdversary_4 5.30 ns 6.38 ns
BM_StableSort_uint16_QuickSortAdversary_16 14.5 ns 15.3 ns
BM_StableSort_uint16_QuickSortAdversary_64 575 ns 611 ns
BM_StableSort_uint16_QuickSortAdversary_256 2423 ns 2577 ns
BM_StableSort_uint16_QuickSortAdversary_1024 2794 ns 16854 ns
BM_StableSort_uint16_QuickSortAdversary_4096 10511 ns 75952 ns
BM_StableSort_uint16_QuickSortAdversary_16384 56214 ns 333824 ns
BM_StableSort_uint16_QuickSortAdversary_65536 422512 ns 1354867 ns
BM_StableSort_uint16_QuickSortAdversary_262144 583301 ns 1564443 ns
BM_StableSort_uint16_QuickSortAdversary_524288 1584319 ns 3265575 ns
BM_StableSort_uint16_QuickSortAdversary_1048576 3197732 ns 7945245 ns
BM_StableSort_int32_Random_1 3.81 ns 3.70 ns
BM_StableSort_int32_Random_4 20.8 ns 23.4 ns
BM_StableSort_int32_Random_16 134 ns 161 ns
BM_StableSort_int32_Random_64 895 ns 984 ns
BM_StableSort_int32_Random_256 5640 ns 5897 ns
BM_StableSort_int32_Random_1024 6994 ns 32118 ns
BM_StableSort_int32_Random_4096 27367 ns 168960 ns
BM_StableSort_int32_Random_16384 183261 ns 843240 ns
BM_StableSort_int32_Random_65536 950914 ns 3953588 ns
BM_StableSort_int32_Random_262144 3673311 ns 16790171 ns
BM_StableSort_int32_Random_524288 11515700 ns 36023098 ns
BM_StableSort_int32_Random_1048576 24492515 ns 78116028 ns
BM_StableSort_int32_Ascending_1 3.31 ns 4.48 ns
BM_StableSort_int32_Ascending_4 5.96 ns 6.99 ns
BM_StableSort_int32_Ascending_16 13.0 ns 16.0 ns
BM_StableSort_int32_Ascending_64 36.7 ns 53.0 ns
BM_StableSort_int32_Ascending_256 391 ns 471 ns
BM_StableSort_int32_Ascending_1024 2705 ns 2682 ns
BM_StableSort_int32_Ascending_4096 8773 ns 14231 ns
BM_StableSort_int32_Ascending_16384 34709 ns 70625 ns
BM_StableSort_int32_Ascending_65536 142907 ns 344482 ns
BM_StableSort_int32_Ascending_262144 745483 ns 1591418 ns
BM_StableSort_int32_Ascending_524288 1873701 ns 3190305 ns
BM_StableSort_int32_Ascending_1048576 3851590 ns 7570095 ns
BM_StableSort_int32_Descending_1 3.22 ns 4.23 ns
BM_StableSort_int32_Descending_4 7.58 ns 11.2 ns
BM_StableSort_int32_Descending_16 63.9 ns 58.6 ns
BM_StableSort_int32_Descending_64 1133 ns 1017 ns
BM_StableSort_int32_Descending_256 4850 ns 4464 ns
BM_StableSort_int32_Descending_1024 7023 ns 18954 ns
BM_StableSort_int32_Descending_4096 28550 ns 75163 ns
BM_StableSort_int32_Descending_16384 200880 ns 341104 ns
BM_StableSort_int32_Descending_65536 1095910 ns 1398021 ns
BM_StableSort_int32_Descending_262144 3818864 ns 5695486 ns
BM_StableSort_int32_Descending_524288 5606779 ns 17593982 ns
BM_StableSort_int32_Descending_1048576 16416366 ns 26649503 ns
BM_StableSort_int32_SingleElement_1 3.81 ns 3.71 ns
BM_StableSort_int32_SingleElement_4 6.57 ns 6.61 ns
BM_StableSort_int32_SingleElement_16 14.0 ns 15.8 ns
BM_StableSort_int32_SingleElement_64 38.7 ns 53.5 ns
BM_StableSort_int32_SingleElement_256 386 ns 554 ns
BM_StableSort_int32_SingleElement_1024 2761 ns 3046 ns
BM_StableSort_int32_SingleElement_4096 9179 ns 15188 ns
BM_StableSort_int32_SingleElement_16384 34794 ns 70119 ns
BM_StableSort_int32_SingleElement_65536 135190 ns 354755 ns
BM_StableSort_int32_SingleElement_262144 760995 ns 1644072 ns
BM_StableSort_int32_SingleElement_524288 1969575 ns 3343419 ns
BM_StableSort_int32_SingleElement_1048576 4423816 ns 8346971 ns
BM_StableSort_int32_PipeOrgan_1 3.79 ns 3.63 ns
BM_StableSort_int32_PipeOrgan_4 6.21 ns 6.73 ns
BM_StableSort_int32_PipeOrgan_16 27.5 ns 26.0 ns
BM_StableSort_int32_PipeOrgan_64 291 ns 265 ns
BM_StableSort_int32_PipeOrgan_256 2557 ns 2518 ns
BM_StableSort_int32_PipeOrgan_1024 6765 ns 10976 ns
BM_StableSort_int32_PipeOrgan_4096 26373 ns 44537 ns
BM_StableSort_int32_PipeOrgan_16384 201466 ns 188582 ns
BM_StableSort_int32_PipeOrgan_65536 1148533 ns 802368 ns
BM_StableSort_int32_PipeOrgan_262144 2255177 ns 3477829 ns
BM_StableSort_int32_PipeOrgan_524288 3947015 ns 10356637 ns
BM_StableSort_int32_PipeOrgan_1048576 10274312 ns 16405366 ns
BM_StableSort_int32_QuickSortAdversary_1 3.32 ns 4.36 ns
BM_StableSort_int32_QuickSortAdversary_4 5.98 ns 7.44 ns
BM_StableSort_int32_QuickSortAdversary_16 13.0 ns 16.3 ns
BM_StableSort_int32_QuickSortAdversary_64 657 ns 616 ns
BM_StableSort_int32_QuickSortAdversary_256 2569 ns 2483 ns
BM_StableSort_int32_QuickSortAdversary_1024 6898 ns 19635 ns
BM_StableSort_int32_QuickSortAdversary_4096 27092 ns 75108 ns
BM_StableSort_int32_QuickSortAdversary_16384 190379 ns 316463 ns
BM_StableSort_int32_QuickSortAdversary_65536 1109040 ns 1319018 ns
BM_StableSort_int32_QuickSortAdversary_262144 4361925 ns 5472779 ns
BM_StableSort_int32_QuickSortAdversary_524288 6528215 ns 17538983 ns
BM_StableSort_int32_QuickSortAdversary_1048576 18345325 ns 27223926 ns
BM_StableSort_uint32_Random_1 3.67 ns 3.82 ns
BM_StableSort_uint32_Random_4 22.3 ns 21.8 ns
BM_StableSort_uint32_Random_16 155 ns 153 ns
BM_StableSort_uint32_Random_64 946 ns 976 ns
BM_StableSort_uint32_Random_256 5824 ns 6019 ns
BM_StableSort_uint32_Random_1024 4525 ns 32764 ns
BM_StableSort_uint32_Random_4096 17223 ns 158608 ns
BM_StableSort_uint32_Random_16384 134821 ns 748525 ns
BM_StableSort_uint32_Random_65536 716644 ns 3453325 ns
BM_StableSort_uint32_Random_262144 3628062 ns 16065414 ns
BM_StableSort_uint32_Random_524288 10971334 ns 36567712 ns
BM_StableSort_uint32_Random_1048576 22688377 ns 77533497 ns
BM_StableSort_uint32_Ascending_1 3.57 ns 3.44 ns
BM_StableSort_uint32_Ascending_4 5.73 ns 5.33 ns
BM_StableSort_uint32_Ascending_16 14.5 ns 14.0 ns
BM_StableSort_uint32_Ascending_64 50.3 ns 51.3 ns
BM_StableSort_uint32_Ascending_256 465 ns 467 ns
BM_StableSort_uint32_Ascending_1024 3042 ns 2530 ns
BM_StableSort_uint32_Ascending_4096 9842 ns 12207 ns
BM_StableSort_uint32_Ascending_16384 37994 ns 61726 ns
BM_StableSort_uint32_Ascending_65536 148890 ns 294385 ns
BM_StableSort_uint32_Ascending_262144 855080 ns 1422167 ns
BM_StableSort_uint32_Ascending_524288 2154903 ns 3203018 ns
BM_StableSort_uint32_Ascending_1048576 5002518 ns 7563817 ns
BM_StableSort_uint32_Descending_1 3.51 ns 3.40 ns
BM_StableSort_uint32_Descending_4 9.09 ns 7.95 ns
BM_StableSort_uint32_Descending_16 54.8 ns 74.4 ns
BM_StableSort_uint32_Descending_64 1003 ns 1305 ns
BM_StableSort_uint32_Descending_256 4545 ns 5300 ns
BM_StableSort_uint32_Descending_1024 4361 ns 21884 ns
BM_StableSort_uint32_Descending_4096 16018 ns 90534 ns
BM_StableSort_uint32_Descending_16384 146274 ns 381943 ns
BM_StableSort_uint32_Descending_65536 938248 ns 1536806 ns
BM_StableSort_uint32_Descending_262144 3899300 ns 6387843 ns
BM_StableSort_uint32_Descending_524288 5808157 ns 21959858 ns
BM_StableSort_uint32_Descending_1048576 17520047 ns 26351912 ns
BM_StableSort_uint32_SingleElement_1 4.03 ns 3.97 ns
BM_StableSort_uint32_SingleElement_4 6.55 ns 6.41 ns
BM_StableSort_uint32_SingleElement_16 15.6 ns 15.8 ns
BM_StableSort_uint32_SingleElement_64 52.3 ns 58.7 ns
BM_StableSort_uint32_SingleElement_256 473 ns 485 ns
BM_StableSort_uint32_SingleElement_1024 3020 ns 2407 ns
BM_StableSort_uint32_SingleElement_4096 9998 ns 12527 ns
BM_StableSort_uint32_SingleElement_16384 38072 ns 62228 ns
BM_StableSort_uint32_SingleElement_65536 153706 ns 295662 ns
BM_StableSort_uint32_SingleElement_262144 836532 ns 1477099 ns
BM_StableSort_uint32_SingleElement_524288 2144900 ns 3157204 ns
BM_StableSort_uint32_SingleElement_1048576 4995525 ns 7617233 ns
BM_StableSort_uint32_PipeOrgan_1 4.02 ns 3.99 ns
BM_StableSort_uint32_PipeOrgan_4 6.97 ns 6.84 ns
BM_StableSort_uint32_PipeOrgan_16 26.1 ns 29.7 ns
BM_StableSort_uint32_PipeOrgan_64 266 ns 333 ns
BM_StableSort_uint32_PipeOrgan_256 2462 ns 2892 ns
BM_StableSort_uint32_PipeOrgan_1024 4291 ns 12431 ns
BM_StableSort_uint32_PipeOrgan_4096 15638 ns 51449 ns
BM_StableSort_uint32_PipeOrgan_16384 154563 ns 217460 ns
BM_StableSort_uint32_PipeOrgan_65536 907724 ns 925873 ns
BM_StableSort_uint32_PipeOrgan_262144 2394580 ns 4103575 ns
BM_StableSort_uint32_PipeOrgan_524288 4177145 ns 13947158 ns
BM_StableSort_uint32_PipeOrgan_1048576 11848224 ns 18807297 ns
BM_StableSort_uint32_QuickSortAdversary_1 3.50 ns 3.43 ns
BM_StableSort_uint32_QuickSortAdversary_4 5.88 ns 4.96 ns
BM_StableSort_uint32_QuickSortAdversary_16 14.6 ns 14.0 ns
BM_StableSort_uint32_QuickSortAdversary_64 576 ns 715 ns
BM_StableSort_uint32_QuickSortAdversary_256 2353 ns 2797 ns
BM_StableSort_uint32_QuickSortAdversary_1024 4176 ns 21775 ns
BM_StableSort_uint32_QuickSortAdversary_4096 15565 ns 96188 ns
BM_StableSort_uint32_QuickSortAdversary_16384 149092 ns 398332 ns
BM_StableSort_uint32_QuickSortAdversary_65536 902488 ns 1552393 ns
BM_StableSort_uint32_QuickSortAdversary_262144 3946517 ns 6560414 ns
BM_StableSort_uint32_QuickSortAdversary_524288 6247114 ns 22420977 ns
BM_StableSort_uint32_QuickSortAdversary_1048576 19892446 ns 26529576 ns
BM_StableSort_int64_Random_1 3.83 ns 3.98 ns
BM_StableSort_int64_Random_4 21.1 ns 24.0 ns
BM_StableSort_int64_Random_16 129 ns 136 ns
BM_StableSort_int64_Random_64 890 ns 906 ns
BM_StableSort_int64_Random_256 5542 ns 5901 ns
BM_StableSort_int64_Random_1024 16085 ns 33112 ns
BM_StableSort_int64_Random_4096 63895 ns 162181 ns
BM_StableSort_int64_Random_16384 348827 ns 790045 ns
BM_StableSort_int64_Random_65536 1488237 ns 3557506 ns
BM_StableSort_int64_Random_262144 8195713 ns 16315808 ns
BM_StableSort_int64_Random_524288 16586833 ns 38274075 ns
BM_StableSort_int64_Random_1048576 40346644 ns 79182089 ns
BM_StableSort_int64_Ascending_1 3.76 ns 3.55 ns
BM_StableSort_int64_Ascending_4 5.82 ns 6.19 ns
BM_StableSort_int64_Ascending_16 11.7 ns 11.8 ns
BM_StableSort_int64_Ascending_64 32.9 ns 36.8 ns
BM_StableSort_int64_Ascending_256 415 ns 550 ns
BM_StableSort_int64_Ascending_1024 5352 ns 3347 ns
BM_StableSort_int64_Ascending_4096 17516 ns 19134 ns
BM_StableSort_int64_Ascending_16384 64147 ns 91099 ns
BM_StableSort_int64_Ascending_65536 322126 ns 434009 ns
BM_StableSort_int64_Ascending_262144 1554669 ns 2057056 ns
BM_StableSort_int64_Ascending_524288 3656527 ns 5016650 ns
BM_StableSort_int64_Ascending_1048576 10469979 ns 12908613 ns
BM_StableSort_int64_Descending_1 4.09 ns 3.35 ns
BM_StableSort_int64_Descending_4 9.13 ns 8.01 ns
BM_StableSort_int64_Descending_16 76.8 ns 92.9 ns
BM_StableSort_int64_Descending_64 1336 ns 1417 ns
BM_StableSort_int64_Descending_256 5525 ns 5674 ns
BM_StableSort_int64_Descending_1024 17461 ns 22558 ns
BM_StableSort_int64_Descending_4096 64285 ns 102360 ns
BM_StableSort_int64_Descending_16384 336946 ns 388940 ns
BM_StableSort_int64_Descending_65536 837912 ns 1662169 ns
BM_StableSort_int64_Descending_262144 3680806 ns 7494323 ns
BM_StableSort_int64_Descending_524288 11023784 ns 24935033 ns
BM_StableSort_int64_Descending_1048576 20023568 ns 33220712 ns
BM_StableSort_int64_SingleElement_1 3.37 ns 3.98 ns
BM_StableSort_int64_SingleElement_4 5.32 ns 6.92 ns
BM_StableSort_int64_SingleElement_16 10.9 ns 13.3 ns
BM_StableSort_int64_SingleElement_64 32.1 ns 43.8 ns
BM_StableSort_int64_SingleElement_256 420 ns 541 ns
BM_StableSort_int64_SingleElement_1024 5689 ns 3381 ns
BM_StableSort_int64_SingleElement_4096 19199 ns 17989 ns
BM_StableSort_int64_SingleElement_16384 75754 ns 91963 ns
BM_StableSort_int64_SingleElement_65536 357106 ns 500326 ns
BM_StableSort_int64_SingleElement_262144 1672975 ns 2417734 ns
BM_StableSort_int64_SingleElement_524288 3642891 ns 5200878 ns
BM_StableSort_int64_SingleElement_1048576 11172007 ns 13729511 ns
BM_StableSort_int64_PipeOrgan_1 3.38 ns 3.94 ns
BM_StableSort_int64_PipeOrgan_4 5.73 ns 6.44 ns
BM_StableSort_int64_PipeOrgan_16 27.5 ns 29.0 ns
BM_StableSort_int64_PipeOrgan_64 310 ns 321 ns
BM_StableSort_int64_PipeOrgan_256 2761 ns 2918 ns
BM_StableSort_int64_PipeOrgan_1024 16105 ns 12525 ns
BM_StableSort_int64_PipeOrgan_4096 65289 ns 59990 ns
BM_StableSort_int64_PipeOrgan_16384 341757 ns 270636 ns
BM_StableSort_int64_PipeOrgan_65536 587452 ns 1126132 ns
BM_StableSort_int64_PipeOrgan_262144 2837955 ns 5034180 ns
BM_StableSort_int64_PipeOrgan_524288 6617313 ns 15267354 ns
BM_StableSort_int64_PipeOrgan_1048576 15208796 ns 23162989 ns
BM_StableSort_int64_QuickSortAdversary_1 3.77 ns 3.45 ns
BM_StableSort_int64_QuickSortAdversary_4 5.55 ns 5.20 ns
BM_StableSort_int64_QuickSortAdversary_16 12.5 ns 11.5 ns
BM_StableSort_int64_QuickSortAdversary_64 646 ns 750 ns
BM_StableSort_int64_QuickSortAdversary_256 2655 ns 3539 ns
BM_StableSort_int64_QuickSortAdversary_1024 16373 ns 22349 ns
BM_StableSort_int64_QuickSortAdversary_4096 62306 ns 97248 ns
BM_StableSort_int64_QuickSortAdversary_16384 321755 ns 388084 ns
BM_StableSort_int64_QuickSortAdversary_65536 1374694 ns 1596091 ns
BM_StableSort_int64_QuickSortAdversary_262144 4374661 ns 6894139 ns
BM_StableSort_int64_QuickSortAdversary_524288 12736074 ns 23932229 ns
BM_StableSort_int64_QuickSortAdversary_1048576 22615219 ns 33355629 ns
BM_StableSort_uint64_Random_1 3.82 ns 3.49 ns
BM_StableSort_uint64_Random_4 22.4 ns 23.4 ns
BM_StableSort_uint64_Random_16 154 ns 146 ns
BM_StableSort_uint64_Random_64 924 ns 926 ns
BM_StableSort_uint64_Random_256 5864 ns 5913 ns
BM_StableSort_uint64_Random_1024 7168 ns 31746 ns
BM_StableSort_uint64_Random_4096 27668 ns 154224 ns
BM_StableSort_uint64_Random_16384 219526 ns 755205 ns
BM_StableSort_uint64_Random_65536 965251 ns 3490165 ns
BM_StableSort_uint64_Random_262144 6262162 ns 15889589 ns
BM_StableSort_uint64_Random_524288 12530078 ns 36458581 ns
BM_StableSort_uint64_Random_1048576 38462191 ns 75168445 ns
BM_StableSort_uint64_Ascending_1 3.30 ns 3.35 ns
BM_StableSort_uint64_Ascending_4 5.65 ns 5.84 ns
BM_StableSort_uint64_Ascending_16 14.7 ns 12.6 ns
BM_StableSort_uint64_Ascending_64 55.3 ns 34.6 ns
BM_StableSort_uint64_Ascending_256 513 ns 533 ns
BM_StableSort_uint64_Ascending_1024 5541 ns 3189 ns
BM_StableSort_uint64_Ascending_4096 17706 ns 20326 ns
BM_StableSort_uint64_Ascending_16384 66420 ns 93757 ns
BM_StableSort_uint64_Ascending_65536 341425 ns 435016 ns
BM_StableSort_uint64_Ascending_262144 1595691 ns 2088317 ns
BM_StableSort_uint64_Ascending_524288 3808703 ns 5092832 ns
BM_StableSort_uint64_Ascending_1048576 11060417 ns 13023250 ns
BM_StableSort_uint64_Descending_1 3.29 ns 3.35 ns
BM_StableSort_uint64_Descending_4 8.65 ns 7.92 ns
BM_StableSort_uint64_Descending_16 54.7 ns 80.2 ns
BM_StableSort_uint64_Descending_64 1028 ns 1307 ns
BM_StableSort_uint64_Descending_256 4521 ns 5635 ns
BM_StableSort_uint64_Descending_1024 7122 ns 23323 ns
BM_StableSort_uint64_Descending_4096 30538 ns 95892 ns
BM_StableSort_uint64_Descending_16384 195565 ns 392721 ns
BM_StableSort_uint64_Descending_65536 852002 ns 1720358 ns
BM_StableSort_uint64_Descending_262144 3737884 ns 7484130 ns
BM_StableSort_uint64_Descending_524288 11159345 ns 25690770 ns
BM_StableSort_uint64_Descending_1048576 20648864 ns 33057383 ns
BM_StableSort_uint64_SingleElement_1 3.62 ns 4.10 ns
BM_StableSort_uint64_SingleElement_4 6.73 ns 6.64 ns
BM_StableSort_uint64_SingleElement_16 14.9 ns 11.3 ns
BM_StableSort_uint64_SingleElement_64 52.0 ns 33.0 ns
BM_StableSort_uint64_SingleElement_256 511 ns 582 ns
BM_StableSort_uint64_SingleElement_1024 6499 ns 3287 ns
BM_StableSort_uint64_SingleElement_4096 22190 ns 17616 ns
BM_StableSort_uint64_SingleElement_16384 84378 ns 86885 ns
BM_StableSort_uint64_SingleElement_65536 466257 ns 457144 ns
BM_StableSort_uint64_SingleElement_262144 1993687 ns 2361999 ns
BM_StableSort_uint64_SingleElement_524288 4759565 ns 5096771 ns
BM_StableSort_uint64_SingleElement_1048576 12426111 ns 13468453 ns
BM_StableSort_uint64_PipeOrgan_1 3.73 ns 3.94 ns
BM_StableSort_uint64_PipeOrgan_4 7.18 ns 7.54 ns
BM_StableSort_uint64_PipeOrgan_16 25.2 ns 29.1 ns
BM_StableSort_uint64_PipeOrgan_64 260 ns 321 ns
BM_StableSort_uint64_PipeOrgan_256 2468 ns 2970 ns
BM_StableSort_uint64_PipeOrgan_1024 7025 ns 12912 ns
BM_StableSort_uint64_PipeOrgan_4096 28968 ns 53379 ns
BM_StableSort_uint64_PipeOrgan_16384 194156 ns 239790 ns
BM_StableSort_uint64_PipeOrgan_65536 599491 ns 993800 ns
BM_StableSort_uint64_PipeOrgan_262144 2648585 ns 4689680 ns
BM_StableSort_uint64_PipeOrgan_524288 7621109 ns 15401808 ns
BM_StableSort_uint64_PipeOrgan_1048576 15608814 ns 23484821 ns
BM_StableSort_uint64_QuickSortAdversary_1 3.38 ns 3.54 ns
BM_StableSort_uint64_QuickSortAdversary_4 5.50 ns 6.03 ns
BM_StableSort_uint64_QuickSortAdversary_16 14.2 ns 11.0 ns
BM_StableSort_uint64_QuickSortAdversary_64 597 ns 688 ns
BM_StableSort_uint64_QuickSortAdversary_256 2446 ns 2818 ns
BM_StableSort_uint64_QuickSortAdversary_1024 7266 ns 20319 ns
BM_StableSort_uint64_QuickSortAdversary_4096 31155 ns 89112 ns
BM_StableSort_uint64_QuickSortAdversary_16384 201033 ns 390574 ns
BM_StableSort_uint64_QuickSortAdversary_65536 871014 ns 1685639 ns
BM_StableSort_uint64_QuickSortAdversary_262144 3978535 ns 7265830 ns
BM_StableSort_uint64_QuickSortAdversary_524288 10279721 ns 25350004 ns
BM_StableSort_uint64_QuickSortAdversary_1048576 20256585 ns 33054393 ns
```
2025-01-09 19:02:35 +01:00
Louis Dionne
81ae6686ab
[libc++] Add __iswctype to the locale base API since it's required by <locale> ( #122168 )
2025-01-09 08:51:51 -05:00
Peng Liu
6c06253b85
[libc++] Fix erroneous internal capacity evaluation in vector<bool> ( #120577 )
...
This PR fixes the erroneous internal capacity evaluation in
`vector<bool>`, which caused a subsequent SIGSEGV error when calling
`flip()` on `vector<bool>`. By fixing the internal capacity evaluation,
the SIGSEGV is automatically resolved.
2025-01-09 17:46:04 +08:00
Peng Liu
06673a9e9b
[libc++] Uglify non-standard member typedef const_reference in bitset ( #121620 )
...
According to
[[template.bitset.general]](https://eel.is/c++draft/template.bitset.general ),
`std::bitset` is supposed to have only
one (public) member typedef, `reference`. However, libc++'s
implementation of `std::bitset` offers more that that. Specifically, it
offers a public typedef `const_reference` and two private typedefs
`size_type` and `difference_type`. These non-standard member typedefs,
despite being private, can cause potential ambiguities in name lookup in
user-defined classes, as demonstrated in issue #121618 .
Fixing the public member typedef `const_reference` is straightforward:
we can simply replace it with an `__ugly_name` such as
`__const_reference`. However, fixing the private member typedefs
`size_type` and `difference_type` is not so straightforward as they are
required by the `__bit_iterator` class and the corresponding algorithms
optimized for `__bit_iterator`s (e.g., `ranges::fill`).
This PR fixes the member typedef `const_reference` by using uglified
name for it. Further work will be undertaken to address `size_type` and
`difference_type`.
Follows up #80706 , #111127 , and #112843 ,
2025-01-09 17:42:40 +08:00
James Y Knight
2b26ee6e79
[libcxx] Handle windows system error code mapping in std::error_code. ( #93101 )
...
The `std::error_code`/`std::error_category` functionality is designed to
support multiple error domains. On Unix, both system calls and libc
functions return the same error codes, and thus, libc++ today treats
`generic_category()` and `system_category()` as being equivalent.
However, on Windows, libc functions return `errno.h` error codes in the
`errno` global, but system calls return the very different `winerror.h`
error codes via `GetLastError()`.
As such, there is a need to map the winerror.h error codes into generic
errno codes. In libc++, however, the system_error facility does not
implement this mapping; instead the mapping is hidden inside libc++,
used directly by the std::filesystem implementation.
That has a few problems:
1. For std::filesystem APIs, the concrete windows error number is lost,
before users can see it. The intent of the distinction between
std::error_code and std::error_condition is that the error_code return
has the original (potentially more detailed) error code.
2. User-written code which calls Windows system APIs requires this same
mapping, so it also can also return error_code objects that other
(cross-platform) code can understand.
After this commit, an `error_code` with `generic_category()` is used to
report an error from `errno`, and, on Windows only, an `error_code` with
`system_category()` is used to report an error from `GetLastError()`. On
Unix, system_category remains identity-mapped to generic_category, but
is never used by libc++ itself.
The windows error code mapping is moved into system_error, so that
conversion of an `error_code` to `error_condition` correctly translates
the `system_category()` code into a `generic_category()` code, when
appropriate.
This allows code like:
`error_code(GetLastError(), system_category()) == errc::invalid_argument`
to work as expected -- as it does with MSVC STL.
(Continued from old phabricator review [D151493](https://reviews.llvm.org/D151493 ))
2025-01-08 17:34:48 -05:00
Nikolas Klauser
3b92cf281a
[libc++] Add _LIBCPP_NODEBUG to __unwrap_ref_decay_t
...
`__unwrap_ref_decay_t` should be marked `_LIBCPP_NODEBUG`, since it's
and internal type alias and this causes our CI to fail currently, since
we started enforcing this policy via clang-tidy.
2025-01-08 22:28:54 +01:00
Vitaly Buka
570f03096a
Revert "Reapply "[libc++] Explicitly convert to masks in SIMD code ( #107983 )"" ( #122022 )
...
Reverts llvm/llvm-project#121352
Triggers "vector type should not be a bool!" on:
```
bool a[100];
bool b[100];
auto t = std::mismatch(std::begin(a), std::end(a), std::begin(b), std::end(b));
```
https://godbolt.org/z/Y73s3sdef
2025-01-08 18:14:39 +01:00
Nikolas Klauser
f69585235e
[libc++] Put _LIBCPP_NODEBUG on all internal aliases ( #118710 )
...
This significantly reduces the amount of debug information generated
for codebases using libc++, without hurting the debugging experience.
2025-01-08 11:12:59 -05:00
Peng Liu
b054289882
[libc++] Add missing hardening checks and tests for vector<bool> ( #121366 )
...
This PR adds VALID_ELEMENT_ACCESS and VALID_INPUT_RANGE checks for vector<bool>.
2025-01-08 10:25:31 -05:00
Peng Liu
71e9a48227
[libc++] Mark vector<bool>::at() as constexpr to conform to C++20 standard ( #121848 )
...
Closes #121844 .
2025-01-07 16:41:58 -05:00
Konstantin Varlamov
bda7c9ac79
[libc++][hardening] Add checks to forward_list element access. ( #120858 )
...
In our implementation, failing these checks would result in a null
pointer access rather than an out-of-bounds access.
2025-01-06 15:50:00 -05:00
Nikolas Klauser
ef2afa1e83
[libc++] Simplify unwrap_ref_decay a bit ( #121623 )
2025-01-06 12:12:40 +01:00
Peng Liu
1d15541254
[libc++] Remove abandoned __append declaration in vector<bool> ( #121673 )
...
The `vector<bool>` implementation in libcxx contains a declaration of a
private `__append` function, which is neither defined nor used anywhere
in the codebase. This PR aims to remove this abandoned declaration, as
its presence is misleading and could lead to confusion during future
maintenance.
I have no idea why we have a declaration without a definition. My guess
is that the declaration might be inherited from the implementation of
`vector<T>`, where `__append` is both necessary and properly defined.
The declaration may have been inadvertently copied from `vector<T>` to
`vector<bool>` and subsequently abandoned, as `vector<bool>` never needs
it.
2025-01-05 14:08:50 +01:00
Nikolas Klauser
914fd916d5
[libc++][NFC] Simplify basic_ostream by combining operator<<(Arithmetic) ( #121011 )
...
The bodies of all the `operator<<` for arithmetic types have very
similar or even identical bodies. This introduces two new functions to
avoid all the duplication.
2025-01-04 14:49:22 +01:00
Nikolas Klauser
40ac34c518
[libc++] Make __type_list variadic ( #121117 )
...
This makes these lists signficiantly more readable.
2025-01-02 17:23:52 +01:00
Vitaly Buka
ed572f2003
Reapply "[libc++] Explicitly convert to masks in SIMD code ( #107983 )" ( #121352 )
...
This reverts commit 0ea40bf02138c02e7680ce6fa8169502f2a8bd42.
Passes with https://github.com/llvm/llvm-project/issues/121365 fix:
https://lab.llvm.org/buildbot/#/builders/55/builds/4930
2025-01-01 11:30:35 +01:00
Konstantin Varlamov
ac1d560709
[libc++][hardening] Add a bounds check for valarray and bitset. ( #120685 )
...
Add a `valid-element-access` check to `valarray::operator[]` and
`bitset::operator[]`.
2024-12-24 18:22:18 -08:00
Nikolas Klauser
ffc7380ff4
[libc++] Avoid including shared_ptr.h in basic_ostream.h ( #121049 )
2024-12-24 16:18:25 +01:00
Petr Hosek
902e62cf15
[libcxx] Fix the #endif comments ( #120949 )
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The order of comments is swapped.
2024-12-23 07:33:26 -08:00
Petr Hosek
d039ac3955
[libcxx] Remove the second inclusion of the system header ( #120946 )
...
This was introduced in #119025 and not only seems unnecessary, it broke
the build with older versions of glibc.
2024-12-23 07:33:09 -08:00
Peng Xie
6285c46e16
[libc++] Refactor some code in monotonic_buffer_resource ( #117271 )
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1. remove unused __default_buffer_alignment
2. two __try_allocate_from_chunk are same, put it together
This patch refactor some code in monotonic_buffer_resource.
2024-12-23 14:32:59 +08:00
Nikolas Klauser
b41d50aaa9
[libc++][NFC] Name unique_ptr function arguments __ptr and __deleter
...
This makes the code a bit more readable and users will see `ptr` and
`deleter` instead of `p` and `d` when using an IDE that shows the
argument names.
2024-12-22 03:03:42 +01:00
Nikolas Klauser
9b0c8ef37a
[libc++] Don't declare pmr::polymorphic_allocator before C++17 ( #120850 )
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Fixes #120790
2024-12-22 00:56:06 +01:00
Nikolas Klauser
3b8faee6c6
[libc++] Switch _LIBCPP_NODEBUG to [[gnu::nodebug]] ( #120720 )
...
This makes the placement of the attribute more consistent. This also
avoids clang dropping the attribute silently (see #120722 ).
2024-12-22 00:55:35 +01:00
Nikolas Klauser
b9a2658a3e
[libc++][C++03] Use __cxx03/ headers in C++03 mode ( #109002 )
...
This patch implements the forwarding to frozen C++03 headers as
discussed in
https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc . In the
RFC, we initially proposed selecting the right headers from the Clang
driver, however consensus seemed to steer towards handling this in the
library itself. This patch implements that direction.
At a high level, the changes basically amount to making each public
header look like this:
```
// inside <vector>
#ifdef _LIBCPP_CXX03_LANG
# include <__cxx03/vector>
#else
// normal <vector> content
#endif
```
In most cases, public headers are simple umbrella headers so there isn't
much code in the #else branch. In other cases, the #else branch contains
the actual implementation of the header.
2024-12-21 13:01:48 +01:00
Louis Dionne
34e0f9cd36
[libc++] Remove the need for uselocale() ( #120158 )
...
Instead of requiring `uselocale()` as part of the base locale API,
define __locale_guard in the few places that need it directly, without
making __locale_guard part of the base API.
In practice, most mainstream platforms never used __locale_guard, so
they also didn't need to define uselocale(), and after this patch they
actually don't define it anymore.
2024-12-19 16:06:08 -05:00
Peng Liu
fafdf97047
[libc++] Simplify vector<bool>::flip() and add new tests ( #119607 )
...
This PR simplifies the internal bitwise logic of the `flip()` function
for `vector<bool>`, and creates new tests to validate the changes.
2024-12-19 11:48:51 -05:00
Nikolas Klauser
b905bcc509
[libc++] Remove some unused includes ( #120219 )
2024-12-18 21:10:27 +01:00
Louis Dionne
ce4ac99452
[libc++] Remove explicit mentions of __need_FOO macros ( #119025 )
...
This change has a long history. It was first attempted naively in
https://reviews.llvm.org/D131425 , which didn't work because we broke the
ability for code to include e.g. <stdio.h> multiple times and get
different definitions based on the pre-defined macros.
However, in #86843 we managed to simplify <stddef.h> by including the
underlying system header outside of any include guards, which worked.
This patch applies the same simplification we did to <stddef.h> to the
other headers that currently mention __need_FOO macros explicitly.
2024-12-17 09:52:34 -05:00
Nikolas Klauser
59890c1334
[libc++] Granularize <new> includes ( #119964 )
2024-12-17 11:29:16 +01:00
Louis Dionne
084309a0ef
[libc++] Refactor the Windows and MinGW implementation of the locale base API ( #115752 )
...
This patch reimplements the locale base support for Windows flavors in a
way that is more modules-friendly and without defining non-internal
names.
Since this changes the name of some types and entry points in the built
library, this is effectively an ABI break on Windows (which is
acceptable after checking with the Windows/libc++ maintainers).
2024-12-16 17:46:05 -05:00
Nikolas Klauser
6157dbe48c
[libc++] Introduce __forward_as ( #118168 )
...
This allows forwarding an object as a specific type. This is usually
useful when using `deducing this` to avoid calling any functions in a
deriving class.
2024-12-14 15:09:16 +01:00
Louis Dionne
9474e09459
[libc++] Granularize the <new> header ( #119270 )
...
This disentangles the code which previously had a mix of many #ifdefs, a
non-versioned namespace and a versioned namespace. It also makes it
clearer which parts of <new> are implemented on Windows by including <new.h>.
2024-12-13 14:17:56 -05:00
Peng Liu
979e9361f0
[libc++] Fix improper static_cast in std::deque and __split_buffer ( #119106 )
...
This PR addresses the improper use of `static_cast` to `size_t` where
`size_type` is intended. Although the `size_type` member type of STL
containers is usually a synonym of `std::size_t`, there is no guarantee
that they are always equivalent. The C++ standard does not mandate this
equivalence.
In libc++'s implementations of `std::deque`, `std::vector`, and
`__split_buffer`, the `size_type` member type is defined as
`std::allocator_traits<allocator_type>::size_type`, which is either
`allocator_type::size_type` if available or
`std::make_unsigned<difference_type>::type`. While it is true for
`std::allocator` that the `size_type` member type is `std::size_t`, for
user-defined allocator types, they may mismatch. This justifies the need
to replace `static_cast<size_t>` with `static_cast<size_type>` in this
PR.
2024-12-13 09:28:30 -05:00
Nikolas Klauser
5fd385b3c1
[libc++][NFC] Simplify the implementation of string and string_views operator== ( #117184 )
2024-12-13 13:17:19 +01:00
Louis Dionne
4b8bf6aac8
[libc++] Properly guard flat_map includes based on C++ version ( #119227 )
...
That's what we (try to) do consistently for all other umbrella headers.
As a drive-by, remove the <__assert> header which is not mandated
anymore.
2024-12-11 16:53:33 -05:00
Nikolas Klauser
323bedd0d6
[libc++][C++03] Add #if 0 to the experimental/ and ext/ headers as well ( #119541 )
...
This has already been done for the most headers in
https://github.com/llvm/llvm-project/pull/119234 , but I
forgot to also do it for the experimental/ and ext/ headers.
This is part of https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc .
2024-12-11 10:35:21 -05:00
Nikolas Klauser
c166a9c713
[libc++] Add #if 0 block to all the top-level headers ( #119234 )
...
Including The frozen C++03 headers results in a lot of formatting
changes in the main headers, so this splits these changes into a
separate commit instead.
This is part of
https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc .
2024-12-10 16:02:12 +01:00
Louis Dionne
4c4606a743
[libc++] Add missing assertion in std::span constructor ( #118396 )
...
The (iterator, size) constructor should ensure that it gets passed a
valid range when the size is not 0.
Fixes #107789
2024-12-09 11:51:07 -05:00
Nikolas Klauser
ce7771902d
[libc++][C++03] Update include guards ( #109001 )
...
This patch updates the includes guards of the C++ 03 headers.
This is part of https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc .
2024-12-09 17:34:37 +01:00
Hui
f22ecdd9b9
[libc++] Move out flat_map::iterator (for reusing it in flat_multimap) ( #117445 )
2024-12-09 09:22:27 -05:00
Louis Dionne
0e34f3f496
[libc++] Extract a clean base support API for std::atomic ( #118129 )
...
This patch documents the underlying API for implementing atomics on a
platform.
This doesn't change the operations that std::atomic is based on, but it
reorganizes the C11 / GCC implementation split to make it clearer what's
the base support layer and what's not.
2024-12-09 09:14:17 -05:00
cmtice
384e69a914
[libc++] Add _LIBCPP_NODEBUG on internal allocator trait aliases ( #118835 )
...
Put _LIBCPP_NODEBUG on the new allocator trait aliases introduced in
https://github.com/llvm/llvm-project/pull/115654 . This prevents a large
increase in the gdb_index size that was introduced by that PR.
2024-12-06 08:53:56 -05:00
serge-sans-paille
f7ff3cde96
[libc++] Fix sub-overflow in std::gcd implementation ( #117984 )
...
Fix #117249
2024-12-06 07:57:49 +00:00
Louis Dionne
2393ab65ed
[libc++] Fix unintended ABI break in associative containers with reference comparators ( #118685 )
...
While reference comparators are a terrible idea and it's not entirely
clear whether they are supported, fixing the unintended ABI break is
straightforward so we should do it as a first step.
Fixes #118559
2024-12-05 15:56:00 -05:00
