Nikolas Klauser
935e699173
[libc++] Optimize ranges::minmax ( #87335 )
...
This allows Clang to vectorize the loop.
```
---------------------------------------------------------------------
Benchmark old new
---------------------------------------------------------------------
BM_std_minmax<char>/1 0.659 ns 1.41 ns
BM_std_minmax<char>/2 1.08 ns 2.16 ns
BM_std_minmax<char>/3 2.16 ns 2.96 ns
BM_std_minmax<char>/4 2.82 ns 3.81 ns
BM_std_minmax<char>/5 3.43 ns 4.69 ns
BM_std_minmax<char>/6 4.08 ns 5.63 ns
BM_std_minmax<char>/7 4.75 ns 6.51 ns
BM_std_minmax<char>/8 5.42 ns 7.41 ns
BM_std_minmax<char>/9 6.05 ns 8.34 ns
BM_std_minmax<char>/10 6.68 ns 9.29 ns
BM_std_minmax<char>/11 7.47 ns 10.6 ns
BM_std_minmax<char>/12 7.95 ns 11.4 ns
BM_std_minmax<char>/13 8.64 ns 12.4 ns
BM_std_minmax<char>/14 9.35 ns 13.4 ns
BM_std_minmax<char>/15 10.1 ns 14.4 ns
BM_std_minmax<char>/16 10.6 ns 2.25 ns
BM_std_minmax<char>/17 11.3 ns 2.82 ns
BM_std_minmax<char>/18 11.8 ns 3.71 ns
BM_std_minmax<char>/19 12.6 ns 4.52 ns
BM_std_minmax<char>/20 13.2 ns 5.47 ns
BM_std_minmax<char>/21 14.1 ns 6.67 ns
BM_std_minmax<char>/22 14.5 ns 7.78 ns
BM_std_minmax<char>/23 15.1 ns 8.67 ns
BM_std_minmax<char>/24 15.7 ns 9.68 ns
BM_std_minmax<char>/25 16.4 ns 10.7 ns
BM_std_minmax<char>/26 17.1 ns 11.7 ns
BM_std_minmax<char>/27 17.8 ns 12.8 ns
BM_std_minmax<char>/28 18.4 ns 14.1 ns
BM_std_minmax<char>/29 19.0 ns 15.0 ns
BM_std_minmax<char>/30 19.6 ns 16.0 ns
BM_std_minmax<char>/31 20.2 ns 17.0 ns
BM_std_minmax<char>/32 20.8 ns 2.46 ns
BM_std_minmax<char>/64 41.5 ns 2.97 ns
BM_std_minmax<char>/512 340 ns 6.05 ns
BM_std_minmax<char>/1024 667 ns 8.83 ns
BM_std_minmax<char>/4000 2571 ns 28.6 ns
BM_std_minmax<char>/4096 2632 ns 25.8 ns
BM_std_minmax<char>/5500 3554 ns 51.1 ns
BM_std_minmax<char>/64000 41175 ns 480 ns
BM_std_minmax<char>/65536 42039 ns 490 ns
BM_std_minmax<char>/70000 44931 ns 528 ns
BM_std_minmax<short>/1 0.708 ns 1.20 ns
BM_std_minmax<short>/2 1.18 ns 1.78 ns
BM_std_minmax<short>/3 1.98 ns 2.42 ns
BM_std_minmax<short>/4 2.47 ns 3.05 ns
BM_std_minmax<short>/5 3.09 ns 3.72 ns
BM_std_minmax<short>/6 3.49 ns 4.37 ns
BM_std_minmax<short>/7 4.24 ns 5.03 ns
BM_std_minmax<short>/8 4.65 ns 2.12 ns
BM_std_minmax<short>/9 5.34 ns 2.51 ns
BM_std_minmax<short>/10 5.82 ns 3.18 ns
BM_std_minmax<short>/11 6.36 ns 3.97 ns
BM_std_minmax<short>/12 6.73 ns 4.68 ns
BM_std_minmax<short>/13 7.59 ns 5.49 ns
BM_std_minmax<short>/14 7.77 ns 6.45 ns
BM_std_minmax<short>/15 8.54 ns 7.55 ns
BM_std_minmax<short>/16 8.74 ns 2.38 ns
BM_std_minmax<short>/17 9.59 ns 2.76 ns
BM_std_minmax<short>/18 9.88 ns 3.37 ns
BM_std_minmax<short>/19 10.7 ns 4.17 ns
BM_std_minmax<short>/20 10.9 ns 4.88 ns
BM_std_minmax<short>/21 12.1 ns 5.70 ns
BM_std_minmax<short>/22 12.6 ns 6.64 ns
BM_std_minmax<short>/23 13.5 ns 7.72 ns
BM_std_minmax<short>/24 13.2 ns 2.87 ns
BM_std_minmax<short>/25 14.2 ns 3.10 ns
BM_std_minmax<short>/26 14.2 ns 3.59 ns
BM_std_minmax<short>/27 15.4 ns 4.35 ns
BM_std_minmax<short>/28 15.3 ns 5.10 ns
BM_std_minmax<short>/29 16.2 ns 5.87 ns
BM_std_minmax<short>/30 16.2 ns 6.88 ns
BM_std_minmax<short>/31 17.0 ns 7.78 ns
BM_std_minmax<short>/32 17.2 ns 3.45 ns
BM_std_minmax<short>/64 34.1 ns 3.35 ns
BM_std_minmax<short>/512 279 ns 8.37 ns
BM_std_minmax<short>/1024 549 ns 14.2 ns
BM_std_minmax<short>/4000 2111 ns 50.1 ns
BM_std_minmax<short>/4096 2167 ns 47.9 ns
BM_std_minmax<short>/5500 2895 ns 69.7 ns
BM_std_minmax<short>/64000 33454 ns 953 ns
BM_std_minmax<short>/65536 34474 ns 970 ns
BM_std_minmax<short>/70000 36691 ns 1037 ns
BM_std_minmax<int>/1 0.664 ns 1.17 ns
BM_std_minmax<int>/2 1.11 ns 1.69 ns
BM_std_minmax<int>/3 2.36 ns 2.29 ns
BM_std_minmax<int>/4 2.53 ns 2.91 ns
BM_std_minmax<int>/5 3.23 ns 3.56 ns
BM_std_minmax<int>/6 3.56 ns 4.23 ns
BM_std_minmax<int>/7 4.28 ns 4.91 ns
BM_std_minmax<int>/8 4.60 ns 5.60 ns
BM_std_minmax<int>/9 5.38 ns 6.31 ns
BM_std_minmax<int>/10 5.69 ns 7.03 ns
BM_std_minmax<int>/11 6.41 ns 7.70 ns
BM_std_minmax<int>/12 6.73 ns 8.39 ns
BM_std_minmax<int>/13 7.38 ns 9.07 ns
BM_std_minmax<int>/14 7.74 ns 9.79 ns
BM_std_minmax<int>/15 8.53 ns 10.5 ns
BM_std_minmax<int>/16 8.79 ns 11.2 ns
BM_std_minmax<int>/17 9.63 ns 12.0 ns
BM_std_minmax<int>/18 9.84 ns 12.7 ns
BM_std_minmax<int>/19 10.6 ns 13.5 ns
BM_std_minmax<int>/20 11.0 ns 14.3 ns
BM_std_minmax<int>/21 11.7 ns 15.0 ns
BM_std_minmax<int>/22 12.0 ns 15.7 ns
BM_std_minmax<int>/23 13.1 ns 16.5 ns
BM_std_minmax<int>/24 13.0 ns 17.3 ns
BM_std_minmax<int>/25 13.7 ns 17.9 ns
BM_std_minmax<int>/26 14.0 ns 18.6 ns
BM_std_minmax<int>/27 14.8 ns 19.4 ns
BM_std_minmax<int>/28 15.1 ns 20.3 ns
BM_std_minmax<int>/29 15.8 ns 20.9 ns
BM_std_minmax<int>/30 16.1 ns 21.7 ns
BM_std_minmax<int>/31 16.9 ns 22.5 ns
BM_std_minmax<int>/32 17.2 ns 3.40 ns
BM_std_minmax<int>/64 33.9 ns 4.04 ns
BM_std_minmax<int>/512 275 ns 14.6 ns
BM_std_minmax<int>/1024 541 ns 27.5 ns
BM_std_minmax<int>/4000 2093 ns 96.3 ns
BM_std_minmax<int>/4096 2146 ns 98.3 ns
BM_std_minmax<int>/5500 2866 ns 157 ns
BM_std_minmax<int>/64000 33619 ns 1954 ns
BM_std_minmax<int>/65536 34252 ns 2009 ns
BM_std_minmax<int>/70000 36618 ns 2125 ns
BM_std_minmax<long long>/1 0.709 ns 1.19 ns
BM_std_minmax<long long>/2 1.01 ns 1.65 ns
BM_std_minmax<long long>/3 2.14 ns 2.21 ns
BM_std_minmax<long long>/4 2.45 ns 2.83 ns
BM_std_minmax<long long>/5 3.09 ns 3.47 ns
BM_std_minmax<long long>/6 3.44 ns 4.11 ns
BM_std_minmax<long long>/7 4.16 ns 4.79 ns
BM_std_minmax<long long>/8 4.54 ns 5.47 ns
BM_std_minmax<long long>/9 5.37 ns 6.20 ns
BM_std_minmax<long long>/10 5.71 ns 6.93 ns
BM_std_minmax<long long>/11 6.00 ns 7.60 ns
BM_std_minmax<long long>/12 6.43 ns 8.27 ns
BM_std_minmax<long long>/13 7.01 ns 8.94 ns
BM_std_minmax<long long>/14 7.45 ns 9.65 ns
BM_std_minmax<long long>/15 8.16 ns 10.4 ns
BM_std_minmax<long long>/16 8.46 ns 5.22 ns
BM_std_minmax<long long>/17 9.16 ns 5.22 ns
BM_std_minmax<long long>/18 9.53 ns 5.52 ns
BM_std_minmax<long long>/19 10.2 ns 6.02 ns
BM_std_minmax<long long>/20 10.5 ns 6.89 ns
BM_std_minmax<long long>/21 11.3 ns 7.83 ns
BM_std_minmax<long long>/22 11.6 ns 8.59 ns
BM_std_minmax<long long>/23 12.3 ns 9.91 ns
BM_std_minmax<long long>/24 12.6 ns 10.1 ns
BM_std_minmax<long long>/25 13.2 ns 12.0 ns
BM_std_minmax<long long>/26 13.6 ns 13.5 ns
BM_std_minmax<long long>/27 14.2 ns 14.8 ns
BM_std_minmax<long long>/28 14.7 ns 15.9 ns
BM_std_minmax<long long>/29 15.3 ns 16.6 ns
BM_std_minmax<long long>/30 15.8 ns 17.3 ns
BM_std_minmax<long long>/31 16.3 ns 18.2 ns
BM_std_minmax<long long>/32 16.7 ns 7.18 ns
BM_std_minmax<long long>/64 33.1 ns 11.5 ns
BM_std_minmax<long long>/512 268 ns 71.0 ns
BM_std_minmax<long long>/1024 532 ns 138 ns
BM_std_minmax<long long>/4000 2056 ns 533 ns
BM_std_minmax<long long>/4096 2112 ns 539 ns
BM_std_minmax<long long>/5500 2823 ns 749 ns
BM_std_minmax<long long>/64000 32956 ns 8590 ns
BM_std_minmax<long long>/65536 33795 ns 8791 ns
BM_std_minmax<long long>/70000 36084 ns 9442 ns
BM_std_minmax<unsigned char>/1 0.714 ns 1.41 ns
BM_std_minmax<unsigned char>/2 0.955 ns 1.96 ns
BM_std_minmax<unsigned char>/3 1.90 ns 2.63 ns
BM_std_minmax<unsigned char>/4 2.40 ns 3.34 ns
BM_std_minmax<unsigned char>/5 2.87 ns 4.10 ns
BM_std_minmax<unsigned char>/6 3.47 ns 4.88 ns
BM_std_minmax<unsigned char>/7 4.04 ns 5.66 ns
BM_std_minmax<unsigned char>/8 4.65 ns 6.45 ns
BM_std_minmax<unsigned char>/9 5.18 ns 7.24 ns
BM_std_minmax<unsigned char>/10 5.80 ns 8.05 ns
BM_std_minmax<unsigned char>/11 6.24 ns 8.86 ns
BM_std_minmax<unsigned char>/12 6.78 ns 9.70 ns
BM_std_minmax<unsigned char>/13 7.30 ns 10.6 ns
BM_std_minmax<unsigned char>/14 7.86 ns 11.4 ns
BM_std_minmax<unsigned char>/15 8.46 ns 12.3 ns
BM_std_minmax<unsigned char>/16 9.00 ns 2.12 ns
BM_std_minmax<unsigned char>/17 9.58 ns 2.83 ns
BM_std_minmax<unsigned char>/18 10.1 ns 3.37 ns
BM_std_minmax<unsigned char>/19 10.7 ns 4.11 ns
BM_std_minmax<unsigned char>/20 11.2 ns 4.85 ns
BM_std_minmax<unsigned char>/21 11.9 ns 5.69 ns
BM_std_minmax<unsigned char>/22 12.3 ns 6.77 ns
BM_std_minmax<unsigned char>/23 13.1 ns 7.56 ns
BM_std_minmax<unsigned char>/24 13.5 ns 8.40 ns
BM_std_minmax<unsigned char>/25 14.2 ns 9.30 ns
BM_std_minmax<unsigned char>/26 14.4 ns 10.1 ns
BM_std_minmax<unsigned char>/27 15.0 ns 11.1 ns
BM_std_minmax<unsigned char>/28 15.3 ns 11.9 ns
BM_std_minmax<unsigned char>/29 16.2 ns 12.9 ns
BM_std_minmax<unsigned char>/30 16.5 ns 13.9 ns
BM_std_minmax<unsigned char>/31 17.2 ns 14.8 ns
BM_std_minmax<unsigned char>/32 17.6 ns 2.36 ns
BM_std_minmax<unsigned char>/64 35.6 ns 3.21 ns
BM_std_minmax<unsigned char>/512 288 ns 6.00 ns
BM_std_minmax<unsigned char>/1024 573 ns 8.80 ns
BM_std_minmax<unsigned char>/4000 2222 ns 28.6 ns
BM_std_minmax<unsigned char>/4096 2265 ns 25.9 ns
BM_std_minmax<unsigned char>/5500 3047 ns 48.8 ns
BM_std_minmax<unsigned char>/64000 35059 ns 480 ns
BM_std_minmax<unsigned char>/65536 35941 ns 491 ns
BM_std_minmax<unsigned char>/70000 38922 ns 525 ns
BM_std_minmax<unsigned short>/1 0.711 ns 1.18 ns
BM_std_minmax<unsigned short>/2 0.957 ns 1.65 ns
BM_std_minmax<unsigned short>/3 2.13 ns 2.21 ns
BM_std_minmax<unsigned short>/4 2.14 ns 2.78 ns
BM_std_minmax<unsigned short>/5 3.06 ns 3.29 ns
BM_std_minmax<unsigned short>/6 2.89 ns 3.87 ns
BM_std_minmax<unsigned short>/7 3.80 ns 4.55 ns
BM_std_minmax<unsigned short>/8 3.68 ns 2.02 ns
BM_std_minmax<unsigned short>/9 4.53 ns 2.40 ns
BM_std_minmax<unsigned short>/10 4.60 ns 2.94 ns
BM_std_minmax<unsigned short>/11 5.67 ns 3.67 ns
BM_std_minmax<unsigned short>/12 5.39 ns 4.22 ns
BM_std_minmax<unsigned short>/13 6.58 ns 4.78 ns
BM_std_minmax<unsigned short>/14 6.33 ns 5.54 ns
BM_std_minmax<unsigned short>/15 7.34 ns 6.30 ns
BM_std_minmax<unsigned short>/16 7.17 ns 2.25 ns
BM_std_minmax<unsigned short>/17 8.19 ns 2.61 ns
BM_std_minmax<unsigned short>/18 8.02 ns 3.19 ns
BM_std_minmax<unsigned short>/19 9.03 ns 3.72 ns
BM_std_minmax<unsigned short>/20 8.89 ns 4.36 ns
BM_std_minmax<unsigned short>/21 9.77 ns 5.10 ns
BM_std_minmax<unsigned short>/22 9.70 ns 5.55 ns
BM_std_minmax<unsigned short>/23 10.8 ns 6.29 ns
BM_std_minmax<unsigned short>/24 10.6 ns 2.41 ns
BM_std_minmax<unsigned short>/25 11.6 ns 2.75 ns
BM_std_minmax<unsigned short>/26 11.4 ns 3.26 ns
BM_std_minmax<unsigned short>/27 12.4 ns 3.86 ns
BM_std_minmax<unsigned short>/28 12.3 ns 4.45 ns
BM_std_minmax<unsigned short>/29 13.2 ns 5.07 ns
BM_std_minmax<unsigned short>/30 13.1 ns 5.77 ns
BM_std_minmax<unsigned short>/31 13.9 ns 6.65 ns
BM_std_minmax<unsigned short>/32 13.9 ns 2.72 ns
BM_std_minmax<unsigned short>/64 27.8 ns 3.25 ns
BM_std_minmax<unsigned short>/512 220 ns 8.30 ns
BM_std_minmax<unsigned short>/1024 435 ns 14.1 ns
BM_std_minmax<unsigned short>/4000 1703 ns 49.8 ns
BM_std_minmax<unsigned short>/4096 1746 ns 47.9 ns
BM_std_minmax<unsigned short>/5500 2350 ns 69.9 ns
BM_std_minmax<unsigned short>/64000 27388 ns 953 ns
BM_std_minmax<unsigned short>/65536 28040 ns 975 ns
BM_std_minmax<unsigned short>/70000 29967 ns 1040 ns
BM_std_minmax<unsigned int>/1 0.712 ns 1.18 ns
BM_std_minmax<unsigned int>/2 0.965 ns 1.65 ns
BM_std_minmax<unsigned int>/3 2.13 ns 2.14 ns
BM_std_minmax<unsigned int>/4 2.09 ns 2.64 ns
BM_std_minmax<unsigned int>/5 3.02 ns 3.21 ns
BM_std_minmax<unsigned int>/6 2.94 ns 3.81 ns
BM_std_minmax<unsigned int>/7 3.91 ns 4.38 ns
BM_std_minmax<unsigned int>/8 3.75 ns 4.93 ns
BM_std_minmax<unsigned int>/9 4.71 ns 5.60 ns
BM_std_minmax<unsigned int>/10 4.59 ns 6.26 ns
BM_std_minmax<unsigned int>/11 5.57 ns 6.80 ns
BM_std_minmax<unsigned int>/12 5.43 ns 7.47 ns
BM_std_minmax<unsigned int>/13 6.45 ns 8.10 ns
BM_std_minmax<unsigned int>/14 6.32 ns 8.69 ns
BM_std_minmax<unsigned int>/15 7.29 ns 9.37 ns
BM_std_minmax<unsigned int>/16 7.12 ns 9.99 ns
BM_std_minmax<unsigned int>/17 8.24 ns 10.6 ns
BM_std_minmax<unsigned int>/18 8.00 ns 11.2 ns
BM_std_minmax<unsigned int>/19 8.94 ns 12.0 ns
BM_std_minmax<unsigned int>/20 8.91 ns 12.6 ns
BM_std_minmax<unsigned int>/21 9.73 ns 17.2 ns
BM_std_minmax<unsigned int>/22 9.75 ns 13.8 ns
BM_std_minmax<unsigned int>/23 10.6 ns 14.5 ns
BM_std_minmax<unsigned int>/24 10.6 ns 15.1 ns
BM_std_minmax<unsigned int>/25 11.5 ns 15.7 ns
BM_std_minmax<unsigned int>/26 11.4 ns 16.3 ns
BM_std_minmax<unsigned int>/27 12.3 ns 17.0 ns
BM_std_minmax<unsigned int>/28 12.3 ns 17.6 ns
BM_std_minmax<unsigned int>/29 13.2 ns 18.3 ns
BM_std_minmax<unsigned int>/30 13.2 ns 19.0 ns
BM_std_minmax<unsigned int>/31 14.0 ns 19.6 ns
BM_std_minmax<unsigned int>/32 14.0 ns 3.39 ns
BM_std_minmax<unsigned int>/64 27.6 ns 4.05 ns
BM_std_minmax<unsigned int>/512 221 ns 14.2 ns
BM_std_minmax<unsigned int>/1024 439 ns 25.5 ns
BM_std_minmax<unsigned int>/4000 1720 ns 96.3 ns
BM_std_minmax<unsigned int>/4096 1762 ns 97.8 ns
BM_std_minmax<unsigned int>/5500 2364 ns 146 ns
BM_std_minmax<unsigned int>/64000 27874 ns 1905 ns
BM_std_minmax<unsigned int>/65536 28012 ns 1961 ns
BM_std_minmax<unsigned int>/70000 29899 ns 2087 ns
BM_std_minmax<unsigned long long>/1 0.707 ns 1.18 ns
BM_std_minmax<unsigned long long>/2 0.909 ns 1.65 ns
BM_std_minmax<unsigned long long>/3 1.65 ns 2.70 ns
BM_std_minmax<unsigned long long>/4 1.93 ns 2.69 ns
BM_std_minmax<unsigned long long>/5 2.45 ns 3.34 ns
BM_std_minmax<unsigned long long>/6 2.78 ns 3.81 ns
BM_std_minmax<unsigned long long>/7 3.28 ns 4.43 ns
BM_std_minmax<unsigned long long>/8 3.70 ns 4.92 ns
BM_std_minmax<unsigned long long>/9 4.12 ns 5.64 ns
BM_std_minmax<unsigned long long>/10 4.44 ns 6.15 ns
BM_std_minmax<unsigned long long>/11 4.91 ns 6.81 ns
BM_std_minmax<unsigned long long>/12 5.31 ns 7.41 ns
BM_std_minmax<unsigned long long>/13 5.72 ns 7.96 ns
BM_std_minmax<unsigned long long>/14 6.05 ns 8.66 ns
BM_std_minmax<unsigned long long>/15 6.55 ns 9.37 ns
BM_std_minmax<unsigned long long>/16 6.89 ns 7.98 ns
BM_std_minmax<unsigned long long>/17 7.34 ns 8.13 ns
BM_std_minmax<unsigned long long>/18 7.73 ns 8.42 ns
BM_std_minmax<unsigned long long>/19 8.26 ns 8.63 ns
BM_std_minmax<unsigned long long>/20 8.54 ns 8.96 ns
BM_std_minmax<unsigned long long>/21 9.14 ns 9.37 ns
BM_std_minmax<unsigned long long>/22 9.39 ns 9.67 ns
BM_std_minmax<unsigned long long>/23 10.1 ns 10.1 ns
BM_std_minmax<unsigned long long>/24 10.4 ns 10.6 ns
BM_std_minmax<unsigned long long>/25 11.0 ns 11.3 ns
BM_std_minmax<unsigned long long>/26 11.3 ns 12.1 ns
BM_std_minmax<unsigned long long>/27 11.8 ns 14.2 ns
BM_std_minmax<unsigned long long>/28 12.1 ns 15.8 ns
BM_std_minmax<unsigned long long>/29 12.6 ns 17.4 ns
BM_std_minmax<unsigned long long>/30 13.1 ns 18.1 ns
BM_std_minmax<unsigned long long>/31 13.4 ns 18.8 ns
BM_std_minmax<unsigned long long>/32 13.8 ns 10.4 ns
BM_std_minmax<unsigned long long>/64 27.3 ns 15.5 ns
BM_std_minmax<unsigned long long>/512 222 ns 80.6 ns
BM_std_minmax<unsigned long long>/1024 443 ns 156 ns
BM_std_minmax<unsigned long long>/4000 1731 ns 591 ns
BM_std_minmax<unsigned long long>/4096 1752 ns 609 ns
BM_std_minmax<unsigned long long>/5500 2340 ns 819 ns
BM_std_minmax<unsigned long long>/64000 27166 ns 9652 ns
BM_std_minmax<unsigned long long>/65536 27869 ns 9876 ns
BM_std_minmax<unsigned long long>/70000 29920 ns 10680 ns
```
2024-04-06 17:22:07 +02:00
Nikolas Klauser
985c1a44f8
[libc++] Optimize the two range overload of mismatch ( #86853 )
...
```
-----------------------------------------------------------------------------
Benchmark old new
-----------------------------------------------------------------------------
bm_mismatch_two_range_overload<char>/1 0.941 ns 1.88 ns
bm_mismatch_two_range_overload<char>/2 1.43 ns 2.15 ns
bm_mismatch_two_range_overload<char>/3 1.95 ns 2.55 ns
bm_mismatch_two_range_overload<char>/4 2.58 ns 2.90 ns
bm_mismatch_two_range_overload<char>/5 3.75 ns 3.31 ns
bm_mismatch_two_range_overload<char>/6 5.00 ns 3.83 ns
bm_mismatch_two_range_overload<char>/7 5.59 ns 4.35 ns
bm_mismatch_two_range_overload<char>/8 6.37 ns 4.84 ns
bm_mismatch_two_range_overload<char>/16 11.8 ns 6.72 ns
bm_mismatch_two_range_overload<char>/64 45.5 ns 2.59 ns
bm_mismatch_two_range_overload<char>/512 366 ns 12.6 ns
bm_mismatch_two_range_overload<char>/4096 2890 ns 91.6 ns
bm_mismatch_two_range_overload<char>/32768 23038 ns 758 ns
bm_mismatch_two_range_overload<char>/262144 142813 ns 6573 ns
bm_mismatch_two_range_overload<char>/1048576 366679 ns 26710 ns
bm_mismatch_two_range_overload<short>/1 0.934 ns 1.88 ns
bm_mismatch_two_range_overload<short>/2 1.30 ns 2.58 ns
bm_mismatch_two_range_overload<short>/3 1.76 ns 3.28 ns
bm_mismatch_two_range_overload<short>/4 2.24 ns 3.98 ns
bm_mismatch_two_range_overload<short>/5 2.80 ns 4.92 ns
bm_mismatch_two_range_overload<short>/6 3.58 ns 6.01 ns
bm_mismatch_two_range_overload<short>/7 4.29 ns 7.03 ns
bm_mismatch_two_range_overload<short>/8 4.67 ns 7.39 ns
bm_mismatch_two_range_overload<short>/16 9.86 ns 13.1 ns
bm_mismatch_two_range_overload<short>/64 38.9 ns 4.55 ns
bm_mismatch_two_range_overload<short>/512 348 ns 27.7 ns
bm_mismatch_two_range_overload<short>/4096 2881 ns 225 ns
bm_mismatch_two_range_overload<short>/32768 23111 ns 1715 ns
bm_mismatch_two_range_overload<short>/262144 184846 ns 14416 ns
bm_mismatch_two_range_overload<short>/1048576 742885 ns 57264 ns
bm_mismatch_two_range_overload<int>/1 0.838 ns 1.19 ns
bm_mismatch_two_range_overload<int>/2 1.19 ns 1.65 ns
bm_mismatch_two_range_overload<int>/3 1.83 ns 2.06 ns
bm_mismatch_two_range_overload<int>/4 2.38 ns 2.42 ns
bm_mismatch_two_range_overload<int>/5 3.60 ns 2.47 ns
bm_mismatch_two_range_overload<int>/6 3.68 ns 3.05 ns
bm_mismatch_two_range_overload<int>/7 4.32 ns 3.36 ns
bm_mismatch_two_range_overload<int>/8 5.18 ns 3.58 ns
bm_mismatch_two_range_overload<int>/16 10.6 ns 2.84 ns
bm_mismatch_two_range_overload<int>/64 39.0 ns 7.78 ns
bm_mismatch_two_range_overload<int>/512 247 ns 53.9 ns
bm_mismatch_two_range_overload<int>/4096 1927 ns 429 ns
bm_mismatch_two_range_overload<int>/32768 15569 ns 3393 ns
bm_mismatch_two_range_overload<int>/262144 125413 ns 28504 ns
bm_mismatch_two_range_overload<int>/1048576 504549 ns 112729 ns
```
2024-04-01 18:21:51 +02:00
Nikolas Klauser
beaff78528
[libc++] Optimize the std::mismatch tail ( #83440 )
...
This adds vectorization to the last 0-3 vectors and, if the range is
large enough, the remaining elements that don't fill a vector
completely.
```
-----------------------------------------------------------------------
Benchmark old full vectors partial vector
-----------------------------------------------------------------------
bm_mismatch<char>/1 1.40 ns 1.62 ns 2.09 ns
bm_mismatch<char>/2 1.88 ns 2.10 ns 2.33 ns
bm_mismatch<char>/3 2.67 ns 2.56 ns 2.72 ns
bm_mismatch<char>/4 3.01 ns 3.20 ns 3.70 ns
bm_mismatch<char>/5 3.51 ns 3.73 ns 3.64 ns
bm_mismatch<char>/6 4.71 ns 4.85 ns 4.37 ns
bm_mismatch<char>/7 5.12 ns 5.33 ns 4.37 ns
bm_mismatch<char>/8 5.79 ns 6.02 ns 4.75 ns
bm_mismatch<char>/15 9.20 ns 10.5 ns 7.23 ns
bm_mismatch<char>/16 10.2 ns 10.1 ns 7.46 ns
bm_mismatch<char>/17 10.2 ns 10.8 ns 7.57 ns
bm_mismatch<char>/31 17.6 ns 17.1 ns 10.8 ns
bm_mismatch<char>/32 17.4 ns 1.64 ns 1.64 ns
bm_mismatch<char>/33 23.3 ns 2.10 ns 2.33 ns
bm_mismatch<char>/63 31.8 ns 16.9 ns 2.33 ns
bm_mismatch<char>/64 32.6 ns 2.10 ns 2.10 ns
bm_mismatch<char>/65 33.6 ns 2.57 ns 2.80 ns
bm_mismatch<char>/127 67.3 ns 18.1 ns 3.27 ns
bm_mismatch<char>/128 2.17 ns 2.14 ns 2.57 ns
bm_mismatch<char>/129 2.36 ns 2.80 ns 3.27 ns
bm_mismatch<char>/255 67.5 ns 19.6 ns 4.68 ns
bm_mismatch<char>/256 3.76 ns 3.71 ns 3.97 ns
bm_mismatch<char>/257 3.77 ns 4.04 ns 4.43 ns
bm_mismatch<char>/511 70.8 ns 22.1 ns 7.47 ns
bm_mismatch<char>/512 7.27 ns 7.30 ns 6.95 ns
bm_mismatch<char>/513 7.11 ns 7.05 ns 6.96 ns
bm_mismatch<char>/1023 75.9 ns 27.4 ns 13.3 ns
bm_mismatch<char>/1024 13.9 ns 13.8 ns 12.4 ns
bm_mismatch<char>/1025 13.6 ns 13.6 ns 12.8 ns
bm_mismatch<char>/2047 87.3 ns 37.5 ns 25.4 ns
bm_mismatch<char>/2048 26.8 ns 27.4 ns 24.0 ns
bm_mismatch<char>/2049 26.7 ns 27.3 ns 25.5 ns
bm_mismatch<char>/4095 112 ns 64.7 ns 48.7 ns
bm_mismatch<char>/4096 53.0 ns 54.2 ns 46.8 ns
bm_mismatch<char>/4097 52.7 ns 54.2 ns 48.4 ns
bm_mismatch<char>/8191 160 ns 118 ns 98.4 ns
bm_mismatch<char>/8192 107 ns 108 ns 96.0 ns
bm_mismatch<char>/8193 106 ns 108 ns 97.2 ns
bm_mismatch<char>/16383 283 ns 234 ns 215 ns
bm_mismatch<char>/16384 227 ns 223 ns 217 ns
bm_mismatch<char>/16385 221 ns 221 ns 215 ns
bm_mismatch<char>/32767 547 ns 499 ns 488 ns
bm_mismatch<char>/32768 495 ns 492 ns 492 ns
bm_mismatch<char>/32769 491 ns 489 ns 488 ns
bm_mismatch<char>/65535 1028 ns 979 ns 971 ns
bm_mismatch<char>/65536 976 ns 970 ns 974 ns
bm_mismatch<char>/65537 970 ns 965 ns 971 ns
bm_mismatch<char>/131071 2031 ns 1948 ns 2005 ns
bm_mismatch<char>/131072 1973 ns 1955 ns 1974 ns
bm_mismatch<char>/131073 1989 ns 1932 ns 2001 ns
bm_mismatch<char>/262143 4469 ns 4244 ns 4223 ns
bm_mismatch<char>/262144 4443 ns 4183 ns 4243 ns
bm_mismatch<char>/262145 4400 ns 4232 ns 4246 ns
bm_mismatch<char>/524287 10169 ns 9733 ns 9592 ns
bm_mismatch<char>/524288 10154 ns 9664 ns 9843 ns
bm_mismatch<char>/524289 10113 ns 9641 ns 10003 ns
bm_mismatch<short>/1 1.86 ns 2.53 ns 2.32 ns
bm_mismatch<short>/2 2.57 ns 2.77 ns 2.55 ns
bm_mismatch<short>/3 3.26 ns 3.00 ns 2.79 ns
bm_mismatch<short>/4 3.95 ns 3.39 ns 3.15 ns
bm_mismatch<short>/5 4.83 ns 3.97 ns 3.72 ns
bm_mismatch<short>/6 5.43 ns 4.34 ns 4.03 ns
bm_mismatch<short>/7 6.11 ns 4.73 ns 4.44 ns
bm_mismatch<short>/8 6.84 ns 5.02 ns 4.79 ns
bm_mismatch<short>/15 11.5 ns 7.12 ns 6.50 ns
bm_mismatch<short>/16 13.9 ns 1.87 ns 2.11 ns
bm_mismatch<short>/17 14.0 ns 3.00 ns 2.47 ns
bm_mismatch<short>/31 23.1 ns 7.87 ns 2.47 ns
bm_mismatch<short>/32 23.8 ns 2.57 ns 2.81 ns
bm_mismatch<short>/33 24.5 ns 3.70 ns 2.94 ns
bm_mismatch<short>/63 44.8 ns 9.37 ns 3.46 ns
bm_mismatch<short>/64 2.32 ns 2.57 ns 2.64 ns
bm_mismatch<short>/65 2.52 ns 3.02 ns 3.51 ns
bm_mismatch<short>/127 45.6 ns 9.97 ns 5.18 ns
bm_mismatch<short>/128 3.85 ns 3.93 ns 3.94 ns
bm_mismatch<short>/129 3.82 ns 4.20 ns 4.70 ns
bm_mismatch<short>/255 50.4 ns 12.6 ns 8.07 ns
bm_mismatch<short>/256 7.23 ns 6.91 ns 6.98 ns
bm_mismatch<short>/257 7.24 ns 7.19 ns 7.55 ns
bm_mismatch<short>/511 52.3 ns 17.8 ns 14.0 ns
bm_mismatch<short>/512 13.6 ns 13.7 ns 13.6 ns
bm_mismatch<short>/513 13.9 ns 13.8 ns 18.5 ns
bm_mismatch<short>/1023 60.9 ns 30.9 ns 26.3 ns
bm_mismatch<short>/1024 26.7 ns 27.7 ns 25.7 ns
bm_mismatch<short>/1025 27.7 ns 27.6 ns 25.3 ns
bm_mismatch<short>/2047 88.4 ns 58.0 ns 51.6 ns
bm_mismatch<short>/2048 52.8 ns 55.3 ns 50.6 ns
bm_mismatch<short>/2049 55.2 ns 54.8 ns 48.7 ns
bm_mismatch<short>/4095 153 ns 113 ns 102 ns
bm_mismatch<short>/4096 105 ns 110 ns 101 ns
bm_mismatch<short>/4097 110 ns 110 ns 99.1 ns
bm_mismatch<short>/8191 277 ns 219 ns 206 ns
bm_mismatch<short>/8192 226 ns 214 ns 250 ns
bm_mismatch<short>/8193 226 ns 207 ns 208 ns
bm_mismatch<short>/16383 519 ns 492 ns 488 ns
bm_mismatch<short>/16384 494 ns 492 ns 492 ns
bm_mismatch<short>/16385 492 ns 488 ns 489 ns
bm_mismatch<short>/32767 1007 ns 968 ns 964 ns
bm_mismatch<short>/32768 977 ns 972 ns 970 ns
bm_mismatch<short>/32769 972 ns 962 ns 967 ns
bm_mismatch<short>/65535 1978 ns 1918 ns 1956 ns
bm_mismatch<short>/65536 1940 ns 1927 ns 1970 ns
bm_mismatch<short>/65537 1937 ns 1922 ns 1959 ns
bm_mismatch<short>/131071 4524 ns 4193 ns 4304 ns
bm_mismatch<short>/131072 4445 ns 4196 ns 4306 ns
bm_mismatch<short>/131073 4452 ns 4278 ns 4311 ns
bm_mismatch<short>/262143 9801 ns 10188 ns 9634 ns
bm_mismatch<short>/262144 9738 ns 10151 ns 9651 ns
bm_mismatch<short>/262145 9716 ns 10171 ns 9715 ns
bm_mismatch<short>/524287 19944 ns 20718 ns 20044 ns
bm_mismatch<short>/524288 21139 ns 20647 ns 20008 ns
bm_mismatch<short>/524289 21162 ns 19512 ns 20068 ns
bm_mismatch<int>/1 1.40 ns 1.84 ns 1.87 ns
bm_mismatch<int>/2 1.87 ns 2.08 ns 2.09 ns
bm_mismatch<int>/3 2.36 ns 2.31 ns 2.87 ns
bm_mismatch<int>/4 3.06 ns 2.72 ns 2.95 ns
bm_mismatch<int>/5 3.66 ns 3.37 ns 3.42 ns
bm_mismatch<int>/6 4.55 ns 3.65 ns 3.73 ns
bm_mismatch<int>/7 5.03 ns 3.93 ns 3.94 ns
bm_mismatch<int>/8 5.67 ns 1.86 ns 1.87 ns
bm_mismatch<int>/15 9.89 ns 4.41 ns 2.34 ns
bm_mismatch<int>/16 10.1 ns 2.33 ns 2.34 ns
bm_mismatch<int>/17 10.2 ns 3.34 ns 2.86 ns
bm_mismatch<int>/31 17.2 ns 5.54 ns 3.28 ns
bm_mismatch<int>/32 2.16 ns 2.15 ns 2.58 ns
bm_mismatch<int>/33 2.36 ns 3.01 ns 3.28 ns
bm_mismatch<int>/63 17.7 ns 6.50 ns 4.93 ns
bm_mismatch<int>/64 3.81 ns 3.58 ns 3.90 ns
bm_mismatch<int>/65 3.74 ns 4.36 ns 4.45 ns
bm_mismatch<int>/127 19.5 ns 9.56 ns 7.74 ns
bm_mismatch<int>/128 7.30 ns 6.41 ns 6.85 ns
bm_mismatch<int>/129 7.09 ns 7.04 ns 7.06 ns
bm_mismatch<int>/255 24.7 ns 14.8 ns 13.3 ns
bm_mismatch<int>/256 14.0 ns 12.1 ns 12.3 ns
bm_mismatch<int>/257 13.8 ns 12.7 ns 12.8 ns
bm_mismatch<int>/511 34.3 ns 26.3 ns 24.8 ns
bm_mismatch<int>/512 27.6 ns 23.6 ns 23.9 ns
bm_mismatch<int>/513 27.3 ns 24.4 ns 25.1 ns
bm_mismatch<int>/1023 62.5 ns 50.9 ns 48.3 ns
bm_mismatch<int>/1024 54.4 ns 46.1 ns 46.6 ns
bm_mismatch<int>/1025 54.2 ns 48.4 ns 47.5 ns
bm_mismatch<int>/2047 116 ns 97.8 ns 94.1 ns
bm_mismatch<int>/2048 108 ns 92.6 ns 92.4 ns
bm_mismatch<int>/2049 108 ns 104 ns 94.0 ns
bm_mismatch<int>/4095 233 ns 222 ns 205 ns
bm_mismatch<int>/4096 226 ns 223 ns 225 ns
bm_mismatch<int>/4097 221 ns 219 ns 210 ns
bm_mismatch<int>/8191 499 ns 485 ns 488 ns
bm_mismatch<int>/8192 496 ns 490 ns 495 ns
bm_mismatch<int>/8193 491 ns 485 ns 488 ns
bm_mismatch<int>/16383 982 ns 962 ns 964 ns
bm_mismatch<int>/16384 974 ns 971 ns 971 ns
bm_mismatch<int>/16385 971 ns 961 ns 968 ns
bm_mismatch<int>/32767 2003 ns 1959 ns 1920 ns
bm_mismatch<int>/32768 1996 ns 1947 ns 1928 ns
bm_mismatch<int>/32769 1990 ns 1945 ns 1926 ns
bm_mismatch<int>/65535 4434 ns 4275 ns 4312 ns
bm_mismatch<int>/65536 4437 ns 4267 ns 4321 ns
bm_mismatch<int>/65537 4442 ns 4261 ns 4321 ns
bm_mismatch<int>/131071 9673 ns 9648 ns 9465 ns
bm_mismatch<int>/131072 9667 ns 9671 ns 9465 ns
bm_mismatch<int>/131073 9661 ns 9653 ns 9464 ns
bm_mismatch<int>/262143 20595 ns 19605 ns 19064 ns
bm_mismatch<int>/262144 19894 ns 19572 ns 19009 ns
bm_mismatch<int>/262145 19851 ns 19656 ns 18999 ns
bm_mismatch<int>/524287 39556 ns 39364 ns 38131 ns
bm_mismatch<int>/524288 39678 ns 39573 ns 38183 ns
bm_mismatch<int>/524289 40168 ns 39301 ns 38121 ns
```
2024-03-29 19:29:54 +01:00
Nikolas Klauser
b68e2eba0b
[libc++] Vectorize mismatch ( #73255 )
...
```
---------------------------------------------------
Benchmark old new
---------------------------------------------------
bm_mismatch<char>/1 0.835 ns 2.37 ns
bm_mismatch<char>/2 1.44 ns 2.60 ns
bm_mismatch<char>/3 2.06 ns 2.83 ns
bm_mismatch<char>/4 2.60 ns 3.29 ns
bm_mismatch<char>/5 3.15 ns 3.77 ns
bm_mismatch<char>/6 3.82 ns 4.17 ns
bm_mismatch<char>/7 4.29 ns 4.52 ns
bm_mismatch<char>/8 4.78 ns 4.86 ns
bm_mismatch<char>/16 9.06 ns 7.54 ns
bm_mismatch<char>/64 31.7 ns 19.1 ns
bm_mismatch<char>/512 249 ns 8.16 ns
bm_mismatch<char>/4096 1956 ns 44.2 ns
bm_mismatch<char>/32768 15498 ns 501 ns
bm_mismatch<char>/262144 123965 ns 4479 ns
bm_mismatch<char>/1048576 495668 ns 21306 ns
bm_mismatch<short>/1 0.710 ns 2.12 ns
bm_mismatch<short>/2 1.03 ns 2.66 ns
bm_mismatch<short>/3 1.29 ns 3.56 ns
bm_mismatch<short>/4 1.68 ns 4.29 ns
bm_mismatch<short>/5 1.96 ns 5.18 ns
bm_mismatch<short>/6 2.59 ns 5.91 ns
bm_mismatch<short>/7 2.86 ns 6.63 ns
bm_mismatch<short>/8 3.19 ns 7.33 ns
bm_mismatch<short>/16 5.48 ns 13.0 ns
bm_mismatch<short>/64 16.6 ns 4.06 ns
bm_mismatch<short>/512 130 ns 13.8 ns
bm_mismatch<short>/4096 985 ns 93.8 ns
bm_mismatch<short>/32768 7846 ns 1002 ns
bm_mismatch<short>/262144 63217 ns 10637 ns
bm_mismatch<short>/1048576 251782 ns 42471 ns
bm_mismatch<int>/1 0.716 ns 1.91 ns
bm_mismatch<int>/2 1.21 ns 2.49 ns
bm_mismatch<int>/3 1.38 ns 3.46 ns
bm_mismatch<int>/4 1.71 ns 4.04 ns
bm_mismatch<int>/5 2.00 ns 4.98 ns
bm_mismatch<int>/6 2.43 ns 5.67 ns
bm_mismatch<int>/7 3.05 ns 6.38 ns
bm_mismatch<int>/8 3.22 ns 7.09 ns
bm_mismatch<int>/16 5.18 ns 12.8 ns
bm_mismatch<int>/64 16.6 ns 5.28 ns
bm_mismatch<int>/512 129 ns 25.2 ns
bm_mismatch<int>/4096 1009 ns 201 ns
bm_mismatch<int>/32768 7776 ns 2144 ns
bm_mismatch<int>/262144 62371 ns 20551 ns
bm_mismatch<int>/1048576 254750 ns 90097 ns
```
2024-03-23 15:28:22 +01:00
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
ZijunZhaoCCK
fdd089b500
[libc++] Implement ranges::contains ( #65148 )
...
Differential Revision: https://reviews.llvm.org/D159232
```
Running ./ranges_contains.libcxx.out
Run on (10 X 24.121 MHz CPU s)
CPU Caches:
L1 Data 64 KiB (x10)
L1 Instruction 128 KiB (x10)
L2 Unified 4096 KiB (x5)
Load Average: 3.37, 6.77, 5.27
--------------------------------------------------------------------
Benchmark Time CPU Iterations
--------------------------------------------------------------------
bm_contains_char/16 1.88 ns 1.87 ns 371607095
bm_contains_char/256 7.48 ns 7.47 ns 93292285
bm_contains_char/4096 99.7 ns 99.6 ns 7013185
bm_contains_char/65536 1296 ns 1294 ns 540436
bm_contains_char/1048576 23887 ns 23860 ns 29302
bm_contains_char/16777216 389420 ns 389095 ns 1796
bm_contains_int/16 7.14 ns 7.14 ns 97776288
bm_contains_int/256 90.4 ns 90.3 ns 7558089
bm_contains_int/4096 1294 ns 1290 ns 543052
bm_contains_int/65536 20482 ns 20443 ns 34334
bm_contains_int/1048576 328817 ns 327965 ns 2147
bm_contains_int/16777216 5246279 ns 5239361 ns 133
bm_contains_bool/16 2.19 ns 2.19 ns 322565780
bm_contains_bool/256 3.42 ns 3.41 ns 205025467
bm_contains_bool/4096 22.1 ns 22.1 ns 31780479
bm_contains_bool/65536 333 ns 332 ns 2106606
bm_contains_bool/1048576 5126 ns 5119 ns 135901
bm_contains_bool/16777216 81656 ns 81574 ns 8569
```
---------
Co-authored-by: Nathan Gauër <brioche@google.com>
2023-12-19 16:34:19 -08:00
Nikolas Klauser
f7407411a1
[libc++] Optimize std::find for segmented iterators ( #67224 )
...
```
--------------------------------------------------------------------------
Benchmark old new
--------------------------------------------------------------------------
bm_find<std::deque<char>>/1 6.06 ns 10.6 ns
bm_find<std::deque<char>>/2 15.5 ns 10.6 ns
bm_find<std::deque<char>>/3 19.0 ns 10.6 ns
bm_find<std::deque<char>>/4 20.8 ns 10.6 ns
bm_find<std::deque<char>>/5 22.0 ns 10.6 ns
bm_find<std::deque<char>>/6 23.0 ns 10.5 ns
bm_find<std::deque<char>>/7 24.8 ns 10.7 ns
bm_find<std::deque<char>>/8 25.7 ns 10.6 ns
bm_find<std::deque<char>>/16 28.3 ns 10.6 ns
bm_find<std::deque<char>>/64 44.2 ns 27.0 ns
bm_find<std::deque<char>>/512 133 ns 37.6 ns
bm_find<std::deque<char>>/4096 867 ns 53.1 ns
bm_find<std::deque<char>>/32768 6838 ns 160 ns
bm_find<std::deque<char>>/262144 52897 ns 1495 ns
bm_find<std::deque<char>>/1048576 215621 ns 6077 ns
bm_find<std::deque<short>>/1 6.03 ns 6.28 ns
bm_find<std::deque<short>>/2 15.8 ns 15.8 ns
bm_find<std::deque<short>>/3 20.5 ns 20.3 ns
bm_find<std::deque<short>>/4 21.0 ns 21.0 ns
bm_find<std::deque<short>>/5 23.0 ns 22.1 ns
bm_find<std::deque<short>>/6 22.6 ns 23.0 ns
bm_find<std::deque<short>>/7 23.4 ns 23.7 ns
bm_find<std::deque<short>>/8 24.4 ns 24.9 ns
bm_find<std::deque<short>>/16 26.6 ns 27.2 ns
bm_find<std::deque<short>>/64 43.2 ns 40.9 ns
bm_find<std::deque<short>>/512 124 ns 90.7 ns
bm_find<std::deque<short>>/4096 845 ns 525 ns
bm_find<std::deque<short>>/32768 7273 ns 3194 ns
bm_find<std::deque<short>>/262144 53710 ns 24385 ns
bm_find<std::deque<short>>/1048576 216086 ns 96195 ns
bm_find<std::deque<int>>/1 6.03 ns 10.3 ns
bm_find<std::deque<int>>/2 15.6 ns 10.3 ns
bm_find<std::deque<int>>/3 19.1 ns 10.3 ns
bm_find<std::deque<int>>/4 22.3 ns 10.3 ns
bm_find<std::deque<int>>/5 23.5 ns 10.4 ns
bm_find<std::deque<int>>/6 23.1 ns 10.3 ns
bm_find<std::deque<int>>/7 23.7 ns 10.2 ns
bm_find<std::deque<int>>/8 24.5 ns 10.2 ns
bm_find<std::deque<int>>/16 27.9 ns 26.6 ns
bm_find<std::deque<int>>/64 42.6 ns 32.2 ns
bm_find<std::deque<int>>/512 123 ns 43.0 ns
bm_find<std::deque<int>>/4096 874 ns 93.5 ns
bm_find<std::deque<int>>/32768 7031 ns 751 ns
bm_find<std::deque<int>>/262144 57723 ns 6169 ns
bm_find<std::deque<int>>/1048576 230867 ns 35851 ns
bm_ranges_find<std::deque<char>>/1 5.97 ns 10.6 ns
bm_ranges_find<std::deque<char>>/2 16.0 ns 10.5 ns
bm_ranges_find<std::deque<char>>/3 19.5 ns 10.5 ns
bm_ranges_find<std::deque<char>>/4 21.1 ns 10.6 ns
bm_ranges_find<std::deque<char>>/5 22.8 ns 10.5 ns
bm_ranges_find<std::deque<char>>/6 22.8 ns 10.6 ns
bm_ranges_find<std::deque<char>>/7 23.4 ns 10.8 ns
bm_ranges_find<std::deque<char>>/8 24.1 ns 10.5 ns
bm_ranges_find<std::deque<char>>/16 26.9 ns 10.6 ns
bm_ranges_find<std::deque<char>>/64 50.2 ns 27.2 ns
bm_ranges_find<std::deque<char>>/512 126 ns 38.3 ns
bm_ranges_find<std::deque<char>>/4096 868 ns 53.8 ns
bm_ranges_find<std::deque<char>>/32768 6695 ns 161 ns
bm_ranges_find<std::deque<char>>/262144 54411 ns 1497 ns
bm_ranges_find<std::deque<char>>/1048576 241699 ns 6042 ns
bm_ranges_find<std::deque<short>>/1 6.39 ns 6.31 ns
bm_ranges_find<std::deque<short>>/2 15.8 ns 15.9 ns
bm_ranges_find<std::deque<short>>/3 19.0 ns 19.8 ns
bm_ranges_find<std::deque<short>>/4 20.8 ns 20.9 ns
bm_ranges_find<std::deque<short>>/5 21.8 ns 22.1 ns
bm_ranges_find<std::deque<short>>/6 23.0 ns 23.0 ns
bm_ranges_find<std::deque<short>>/7 23.2 ns 23.9 ns
bm_ranges_find<std::deque<short>>/8 23.7 ns 24.4 ns
bm_ranges_find<std::deque<short>>/16 26.6 ns 26.8 ns
bm_ranges_find<std::deque<short>>/64 43.4 ns 39.7 ns
bm_ranges_find<std::deque<short>>/512 131 ns 90.5 ns
bm_ranges_find<std::deque<short>>/4096 851 ns 523 ns
bm_ranges_find<std::deque<short>>/32768 7370 ns 3166 ns
bm_ranges_find<std::deque<short>>/262144 60778 ns 24814 ns
bm_ranges_find<std::deque<short>>/1048576 229288 ns 99273 ns
bm_ranges_find<std::deque<int>>/1 6.43 ns 10.2 ns
bm_ranges_find<std::deque<int>>/2 16.6 ns 10.2 ns
bm_ranges_find<std::deque<int>>/3 19.6 ns 10.2 ns
bm_ranges_find<std::deque<int>>/4 21.0 ns 10.2 ns
bm_ranges_find<std::deque<int>>/5 21.9 ns 10.4 ns
bm_ranges_find<std::deque<int>>/6 22.7 ns 10.2 ns
bm_ranges_find<std::deque<int>>/7 23.9 ns 10.2 ns
bm_ranges_find<std::deque<int>>/8 23.8 ns 10.2 ns
bm_ranges_find<std::deque<int>>/16 27.2 ns 27.1 ns
bm_ranges_find<std::deque<int>>/64 42.4 ns 32.4 ns
bm_ranges_find<std::deque<int>>/512 122 ns 43.0 ns
bm_ranges_find<std::deque<int>>/4096 895 ns 93.7 ns
bm_ranges_find<std::deque<int>>/32768 6890 ns 756 ns
bm_ranges_find<std::deque<int>>/262144 54025 ns 6102 ns
bm_ranges_find<std::deque<int>>/1048576 221558 ns 32783 ns
```
2023-12-15 17:10:16 +01:00
Nikolas Klauser
c81bfc61da
[libc++] Optimize for_each for segmented iterators
...
```
---------------------------------------------------
Benchmark old new
---------------------------------------------------
bm_for_each/1 3.00 ns 2.98 ns
bm_for_each/2 4.53 ns 4.57 ns
bm_for_each/3 5.82 ns 5.82 ns
bm_for_each/4 6.94 ns 6.91 ns
bm_for_each/5 7.55 ns 7.75 ns
bm_for_each/6 7.06 ns 7.45 ns
bm_for_each/7 6.69 ns 7.14 ns
bm_for_each/8 6.86 ns 4.06 ns
bm_for_each/16 11.5 ns 5.73 ns
bm_for_each/64 43.7 ns 4.06 ns
bm_for_each/512 356 ns 7.98 ns
bm_for_each/4096 2787 ns 53.6 ns
bm_for_each/32768 20836 ns 438 ns
bm_for_each/262144 195362 ns 4945 ns
bm_for_each/1048576 685482 ns 19822 ns
```
Reviewed By: ldionne, Mordante, #libc
Spies: bgraur, sberg, arichardson, libcxx-commits
Differential Revision: https://reviews.llvm.org/D151274
2023-11-14 23:55:24 +01:00
Nikolas Klauser
a9138cdb36
[libc++] Optimize ranges::count for __bit_iterators
...
```
---------------------------------------------------------------
Benchmark old new
---------------------------------------------------------------
bm_vector_bool_count/1 1.92 ns 1.92 ns
bm_vector_bool_count/2 1.92 ns 1.92 ns
bm_vector_bool_count/3 1.92 ns 1.92 ns
bm_vector_bool_count/4 1.92 ns 1.92 ns
bm_vector_bool_count/5 1.92 ns 1.92 ns
bm_vector_bool_count/6 1.92 ns 1.92 ns
bm_vector_bool_count/7 1.92 ns 1.92 ns
bm_vector_bool_count/8 1.92 ns 1.92 ns
bm_vector_bool_count/16 1.92 ns 1.92 ns
bm_vector_bool_count/64 2.24 ns 2.25 ns
bm_vector_bool_count/512 3.19 ns 3.20 ns
bm_vector_bool_count/4096 14.1 ns 12.3 ns
bm_vector_bool_count/32768 84.0 ns 83.6 ns
bm_vector_bool_count/262144 664 ns 661 ns
bm_vector_bool_count/1048576 2623 ns 2628 ns
bm_vector_bool_ranges_count/1 1.07 ns 1.92 ns
bm_vector_bool_ranges_count/2 1.65 ns 1.92 ns
bm_vector_bool_ranges_count/3 2.27 ns 1.92 ns
bm_vector_bool_ranges_count/4 2.68 ns 1.92 ns
bm_vector_bool_ranges_count/5 3.33 ns 1.92 ns
bm_vector_bool_ranges_count/6 3.99 ns 1.92 ns
bm_vector_bool_ranges_count/7 4.67 ns 1.92 ns
bm_vector_bool_ranges_count/8 5.19 ns 1.92 ns
bm_vector_bool_ranges_count/16 11.1 ns 1.92 ns
bm_vector_bool_ranges_count/64 52.2 ns 2.24 ns
bm_vector_bool_ranges_count/512 452 ns 3.20 ns
bm_vector_bool_ranges_count/4096 3577 ns 12.1 ns
bm_vector_bool_ranges_count/32768 28725 ns 83.7 ns
bm_vector_bool_ranges_count/262144 229676 ns 662 ns
bm_vector_bool_ranges_count/1048576 905574 ns 2625 ns
```
Reviewed By: #libc, ldionne
Spies: arichardson, ldionne, libcxx-commits
Differential Revision: https://reviews.llvm.org/D156956
2023-10-06 22:58:41 +02:00
Zijun Zhao
0218ea4aaa
[libc++] Implement ranges::ends_with
...
Reviewed By: #libc, var-const
Differential Revision: https://reviews.llvm.org/D150831
2023-09-18 11:56:10 -07:00
Nikolas Klauser
68b1035965
[libc++][PSTL] Add a __parallel_sort implementation to libdispatch
...
Reviewed By: #libc, ldionne
Spies: ldionne, libcxx-commits
Differential Revision: https://reviews.llvm.org/D155136
2023-08-15 12:20:40 -07:00
Nikolas Klauser
8670b53e11
[libc++] Optimize ranges::find for vector<bool>
...
Benchmark results:
```
----------------------------------------------------------------
Benchmark old new
----------------------------------------------------------------
bm_vector_bool_ranges_find/1 5.64 ns 6.08 ns
bm_vector_bool_ranges_find/2 16.5 ns 6.03 ns
bm_vector_bool_ranges_find/3 20.3 ns 6.07 ns
bm_vector_bool_ranges_find/4 22.2 ns 6.08 ns
bm_vector_bool_ranges_find/5 23.5 ns 6.05 ns
bm_vector_bool_ranges_find/6 24.4 ns 6.10 ns
bm_vector_bool_ranges_find/7 26.7 ns 6.10 ns
bm_vector_bool_ranges_find/8 25.0 ns 6.08 ns
bm_vector_bool_ranges_find/16 27.9 ns 6.07 ns
bm_vector_bool_ranges_find/64 44.5 ns 5.35 ns
bm_vector_bool_ranges_find/512 243 ns 25.7 ns
bm_vector_bool_ranges_find/4096 1858 ns 35.6 ns
bm_vector_bool_ranges_find/32768 15461 ns 93.5 ns
bm_vector_bool_ranges_find/262144 126462 ns 571 ns
bm_vector_bool_ranges_find/1048576 497736 ns 2272 ns
```
Reviewed By: #libc, Mordante
Spies: var-const, Mordante, libcxx-commits
Differential Revision: https://reviews.llvm.org/D156039
2023-08-01 10:28:25 -07:00
Louis Dionne
5aa03b648b
[libc++][NFC] Apply clang-format on large parts of the code base
...
This commit does a pass of clang-format over files in libc++ that
don't require major changes to conform to our style guide, or for
which we're not overly concerned about conflicting with in-flight
patches or hindering the git blame.
This roughly covers:
- benchmarks
- range algorithms
- concepts
- type traits
I did a manual verification of all the changes, and in particular I
applied clang-format on/off annotations in a few places where the
result was less readable after than before. This was not necessary
in a lot of places, however I did find that clang-format had pretty
bad taste when it comes to formatting concepts.
Differential Revision: https://reviews.llvm.org/D153140
2023-06-19 11:19:51 -04:00
Nikolas Klauser
d965960fcf
Revert "[libc++] Optimize for_each for segmented iterators"
...
This reverts commit b1dc43aa3a05c2f14725e2e6428544208ccbe161.
2023-06-05 10:00:02 -07:00
Nikolas Klauser
b1dc43aa3a
[libc++] Optimize for_each for segmented iterators
...
```
---------------------------------------------------
Benchmark old new
---------------------------------------------------
bm_for_each/1 3.00 ns 2.98 ns
bm_for_each/2 4.53 ns 4.57 ns
bm_for_each/3 5.82 ns 5.82 ns
bm_for_each/4 6.94 ns 6.91 ns
bm_for_each/5 7.55 ns 7.75 ns
bm_for_each/6 7.06 ns 7.45 ns
bm_for_each/7 6.69 ns 7.14 ns
bm_for_each/8 6.86 ns 4.06 ns
bm_for_each/16 11.5 ns 5.73 ns
bm_for_each/64 43.7 ns 4.06 ns
bm_for_each/512 356 ns 7.98 ns
bm_for_each/4096 2787 ns 53.6 ns
bm_for_each/32768 20836 ns 438 ns
bm_for_each/262144 195362 ns 4945 ns
bm_for_each/1048576 685482 ns 19822 ns
```
Reviewed By: ldionne, Mordante, #libc
Spies: arichardson, libcxx-commits
Differential Revision: https://reviews.llvm.org/D151274
2023-05-31 18:15:25 -07:00
Nikolas Klauser
1fd08edd58
[libc++] Forward to std::{,w}memchr in std::find
...
Reviewed By: #libc, ldionne
Spies: Mordante, libcxx-commits, ldionne, mikhail.ramalho
Differential Revision: https://reviews.llvm.org/D144394
2023-05-25 07:59:50 -07:00
Nikolas Klauser
aff3cdc604
[libc++] Optimize std::ranges::{min, max} for types that are cheap to copy
...
Don't forward to `min_element` for small types that are trivially copyable, and instead use a naive loop that keeps track of the smallest element (as opposed to an iterator to the smallest element). This allows the compiler to vectorize the loop in some cases.
Reviewed By: #libc, ldionne
Spies: ldionne, libcxx-commits
Differential Revision: https://reviews.llvm.org/D143596
2023-03-11 16:28:24 +01:00
Nikolas Klauser
b4ecfd3c46
[libc++] Forward to std::memcmp for trivially comparable types in equal
...
Reviewed By: #libc, ldionne
Spies: ldionne, Mordante, libcxx-commits
Differential Revision: https://reviews.llvm.org/D139554
2023-02-21 17:11:21 +01:00
Louis Dionne
355e0ce3c5
[libc++] Extend check for non-ASCII characters to src/, test/ and benchmarks/
...
Differential Revision: https://reviews.llvm.org/D132180
2022-08-23 18:36:38 -04:00
Konstantin Varlamov
c945bd0da6
[libc++][ranges] Implement modifying heap algorithms:
...
- `ranges::make_heap`;
- `ranges::push_heap`;
- `ranges::pop_heap`;
- `ranges::sort_heap`.
Differential Revision: https://reviews.llvm.org/D128115
2022-07-08 13:48:41 -07:00
Konstantin Varlamov
94c7b89fe5
[libc++][ranges] Implement ranges::stable_sort.
...
Differential Revision: https://reviews.llvm.org/D127834
2022-07-01 16:34:26 -07:00
Konstantin Varlamov
ff3989e6ae
[libc++][ranges] Implement ranges::sort.
...
Differential Revision: https://reviews.llvm.org/D127557
2022-06-16 15:21:06 -07:00
Nikolas Klauser
8171586176
[libc++][ranges] Implement ranges::binary_search and ranges::{lower, upper}_bound
...
Reviewed By: Mordante, var-const, ldionne, #libc
Spies: sstefan1, libcxx-commits, mgorny
Differential Revision: https://reviews.llvm.org/D121964
2022-06-06 13:33:18 +02:00
Nikolas Klauser
f94a447679
[libc++] Granularize algorithm benchmarks
...
Reviewed By: ldionne, #libc
Spies: libcxx-commits, mgorny, mgrang
Differential Revision: https://reviews.llvm.org/D124740
2022-05-19 16:13:52 +02:00
Nikolas Klauser