crypto/bn256: default to gnark

[kevaundray]

No description provided.

[jwasinger]

Benchmarks of this PR on M2 MBP (arm):

BenchmarkPrecompiledBn256Add/chfast1-Gas=150-12         	  792328	      1463 ns/op	       150.0 gas/op	       102.5 mgas/s	      64 B/op       1 allocs/op
BenchmarkPrecompiledBn256Add/chfast2-Gas=150-12         	  795624	      1482 ns/op	       150.0 gas/op	       101.2 mgas/s	      64 B/op       1 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio1-Gas=150-12        	 4020206	       302.4 ns/op	       150.0 gas/op	       496.1 mgas/s	      64 B/op       1 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio2-Gas=150-12        	 3812008	       318.1 ns/op	       150.0 gas/op	       471.6 mgas/s	     128 B/op       2 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio3-Gas=150-12        	 3670334	       317.8 ns/op	       150.0 gas/op	       471.9 mgas/s	     128 B/op       2 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio4-Gas=150-12        	 3609680	       331.8 ns/op	       150.0 gas/op	       452.1 mgas/s	     192 B/op       3 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio5-Gas=150-12        	 3991012	       298.7 ns/op	       150.0 gas/op	       502.1 mgas/s	      64 B/op       1 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio6-Gas=150-12        	 3630218	       330.9 ns/op	       150.0 gas/op	       453.3 mgas/s	      64 B/op       1 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio7-Gas=150-12        	 3614862	       329.3 ns/op	       150.0 gas/op	       455.6 mgas/s	      64 B/op       1 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio8-Gas=150-12        	 3489369	       343.6 ns/op	       150.0 gas/op	       436.5 mgas/s	     128 B/op       2 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio9-Gas=150-12        	 3554090	       331.8 ns/op	       150.0 gas/op	       452.1 mgas/s	      64 B/op       1 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio10-Gas=150-12       	 3640299	       329.8 ns/op	       150.0 gas/op	       454.8 mgas/s	      64 B/op       1 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio11-Gas=150-12       	  766395	      1515 ns/op	       150.0 gas/op	        99.00 mgas/s	      64 B/op       1 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio12-Gas=150-12       	  779530	      1518 ns/op	       150.0 gas/op	        98.81 mgas/s	      64 B/op       1 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio13-Gas=150-12       	  801121	      1504 ns/op	       150.0 gas/op	        99.75 mgas/s	      64 B/op       1 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio14-Gas=150-12       	 3757437	       317.2 ns/op	       150.0 gas/op	       472.8 mgas/s	      64 B/op       1 allocs/op
BenchmarkPrecompiledBn256ScalarMul/chfast1-Gas=6000-12  	   62271	     19149 ns/op	      6000 gas/op	       313.3 mgas/s	     328 B/op       5 allocs/op
BenchmarkPrecompiledBn256ScalarMul/chfast2-Gas=6000-12  	   33004	     36028 ns/op	      6000 gas/op	       166.5 mgas/s	     544 B/op       7 allocs/op
BenchmarkPrecompiledBn256ScalarMul/chfast3-Gas=6000-12  	   33939	     35323 ns/op	      6000 gas/op	       169.8 mgas/s	     544 B/op       7 allocs/op
BenchmarkPrecompiledBn256ScalarMul/cdetrio1-Gas=6000-12 	   31046	     38428 ns/op	      6000 gas/op	       156.1 mgas/s	     576 B/op       7 allocs/op
BenchmarkPrecompiledBn256ScalarMul/cdetrio6-Gas=6000-12 	   31027	     38713 ns/op	      6000 gas/op	       155.0 mgas/s	     576 B/op       7 allocs/op
BenchmarkPrecompiledBn256ScalarMul/cdetrio11-Gas=6000-12         	   30328	     38724 ns/op	      6000 gas/op	       154.9 mgas/s	     576 B/op	       7 allocs/op
BenchmarkPrecompiledBn256Pairing/jeff1-Gas=113000-12             	    1407	    845678 ns/op	    113000 gas/op	       133.6 mgas/s	    1856 B/op	      16 allocs/op
BenchmarkPrecompiledBn256Pairing/jeff2-Gas=113000-12             	    1400	    842764 ns/op	    113000 gas/op	       134.1 mgas/s	    1856 B/op	      16 allocs/op
BenchmarkPrecompiledBn256Pairing/jeff3-Gas=113000-12             	    1377	    847719 ns/op	    113000 gas/op	       133.3 mgas/s	    1856 B/op	      16 allocs/op
BenchmarkPrecompiledBn256Pairing/jeff4-Gas=147000-12             	    1050	   1089662 ns/op	    147000 gas/op	       134.9 mgas/s	    2824 B/op	      21 allocs/op
BenchmarkPrecompiledBn256Pairing/jeff5-Gas=147000-12             	    1095	   1091265 ns/op	    147000 gas/op	       134.7 mgas/s	    2824 B/op	      21 allocs/op
BenchmarkPrecompiledBn256Pairing/jeff6-Gas=113000-12             	    1413	    866943 ns/op	    113000 gas/op	       130.3 mgas/s	    1856 B/op	      16 allocs/op
BenchmarkPrecompiledBn256Pairing/empty_data-Gas=45000-12         	100000000	        11.21 ns/op	     45000 gas/op	   4014901 mgas/s	       0 B/op	       0 allocs/op
BenchmarkPrecompiledBn256Pairing/one_point-Gas=79000-12          	    1923	    597025 ns/op	     79000 gas/op	       132.3 mgas/s	     920 B/op	      11 allocs/op
BenchmarkPrecompiledBn256Pairing/two_point_match_2-Gas=113000-12 	    2392	    498038 ns/op	    113000 gas/op	       226.9 mgas/s	    1856 B/op	      16 allocs/op
BenchmarkPrecompiledBn256Pairing/two_point_match_3-Gas=113000-12 	    1418	   1052368 ns/op	    113000 gas/op	       107.4 mgas/s	    1856 B/op	      16 allocs/op
BenchmarkPrecompiledBn256Pairing/two_point_match_4-Gas=113000-12 	    1381	    858369 ns/op	    113000 gas/op	       131.6 mgas/s	    1856 B/op	      16 allocs/op
BenchmarkPrecompiledBn256Pairing/ten_point_match_1-Gas=385000-12 	     540	   2189400 ns/op	    385000 gas/op	       175.8 mgas/s	    9664 B/op	      46 allocs/op
BenchmarkPrecompiledBn256Pairing/ten_point_match_2-Gas=385000-12 	     453	   2686634 ns/op	    385000 gas/op	       143.3 mgas/s	    9664 B/op	      46 allocs/op
BenchmarkPrecompiledBn256Pairing/ten_point_match_3-Gas=113000-12 	    1416	    868058 ns/op	    113000 gas/op	       130.2 mgas/s	    1856 B/op	      16 allocs/op

Benchmarks on master:

BenchmarkPrecompiledBn256Add/chfast1-Gas=150-12         	  172806	      6888 ns/op	       150.0 gas/op	        21.77 mgas/s	     768 B/op      14 allocs/op
BenchmarkPrecompiledBn256Add/chfast2-Gas=150-12         	  172438	      6938 ns/op	       150.0 gas/op	        21.61 mgas/s	     768 B/op      14 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio1-Gas=150-12        	 3203986	       367.0 ns/op	       150.0 gas/op	       408.7 mgas/s	     608 B/op       9 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio2-Gas=150-12        	 3123658	       384.0 ns/op	       150.0 gas/op	       390.6 mgas/s	     672 B/op      10 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio3-Gas=150-12        	 3121344	       386.7 ns/op	       150.0 gas/op	       387.9 mgas/s	     672 B/op      10 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio4-Gas=150-12        	 2984788	       399.6 ns/op	       150.0 gas/op	       375.4 mgas/s	     736 B/op      11 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio5-Gas=150-12        	 3275545	       367.8 ns/op	       150.0 gas/op	       407.9 mgas/s	     608 B/op       9 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio6-Gas=150-12        	 2454954	       487.9 ns/op	       150.0 gas/op	       307.4 mgas/s	     608 B/op       9 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio7-Gas=150-12        	 2454031	       488.8 ns/op	       150.0 gas/op	       306.9 mgas/s	     608 B/op       9 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio8-Gas=150-12        	 2388044	       514.3 ns/op	       150.0 gas/op	       291.6 mgas/s	     672 B/op      10 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio9-Gas=150-12        	 2436228	       511.0 ns/op	       150.0 gas/op	       293.5 mgas/s	     608 B/op       9 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio10-Gas=150-12       	 2403188	       490.6 ns/op	       150.0 gas/op	       305.8 mgas/s	     608 B/op       9 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio11-Gas=150-12       	  171998	      6964 ns/op	       150.0 gas/op	        21.53 mgas/s	     768 B/op      14 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio12-Gas=150-12       	  171207	      7010 ns/op	       150.0 gas/op	        21.39 mgas/s	     768 B/op      14 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio13-Gas=150-12       	  168226	      7251 ns/op	       150.0 gas/op	        20.68 mgas/s	     768 B/op      14 allocs/op
BenchmarkPrecompiledBn256Add/cdetrio14-Gas=150-12       	 1366881	       848.6 ns/op	       150.0 gas/op	       176.8 mgas/s	     736 B/op      13 allocs/op
BenchmarkPrecompiledBn256ScalarMul/chfast1-Gas=6000-12  	   24404	     48673 ns/op	      6000 gas/op	       123.3 mgas/s	    1280 B/op      25 allocs/op
BenchmarkPrecompiledBn256ScalarMul/chfast2-Gas=6000-12  	   22874	     52393 ns/op	      6000 gas/op	       114.5 mgas/s	    1472 B/op      26 allocs/op
BenchmarkPrecompiledBn256ScalarMul/chfast3-Gas=6000-12  	   23649	     50233 ns/op	      6000 gas/op	       119.4 mgas/s	    1472 B/op      26 allocs/op
BenchmarkPrecompiledBn256ScalarMul/cdetrio1-Gas=6000-12 	   22485	     57409 ns/op	      6000 gas/op	       104.5 mgas/s	    1504 B/op      26 allocs/op
BenchmarkPrecompiledBn256ScalarMul/cdetrio6-Gas=6000-12 	   21655	     53060 ns/op	      6000 gas/op	       113.1 mgas/s	    1504 B/op      26 allocs/op
BenchmarkPrecompiledBn256ScalarMul/cdetrio11-Gas=6000-12         	   22491	     53986 ns/op	      6000 gas/op	       111.1 mgas/s	    1504 B/op	      26 allocs/op
BenchmarkPrecompiledBn256Pairing/jeff1-Gas=113000-12             	     840	   1428096 ns/op	    113000 gas/op	        79.12 mgas/s	   84529 B/op	     774 allocs/op
BenchmarkPrecompiledBn256Pairing/jeff2-Gas=113000-12             	     834	   1429250 ns/op	    113000 gas/op	        79.05 mgas/s	   84529 B/op	     774 allocs/op
BenchmarkPrecompiledBn256Pairing/jeff3-Gas=113000-12             	     850	   1413788 ns/op	    113000 gas/op	        79.92 mgas/s	   84529 B/op	     774 allocs/op
BenchmarkPrecompiledBn256Pairing/jeff4-Gas=147000-12             	     639	   1888542 ns/op	    147000 gas/op	        77.83 mgas/s	  126561 B/op	    1158 allocs/op
BenchmarkPrecompiledBn256Pairing/jeff5-Gas=147000-12             	     639	   1861790 ns/op	    147000 gas/op	        78.95 mgas/s	  126561 B/op	    1158 allocs/op
BenchmarkPrecompiledBn256Pairing/jeff6-Gas=113000-12             	     853	   1392420 ns/op	    113000 gas/op	        81.14 mgas/s	   84497 B/op	     773 allocs/op
BenchmarkPrecompiledBn256Pairing/empty_data-Gas=45000-12         	    2448	    464451 ns/op	     45000 gas/op	        96.88 mgas/s	     544 B/op	       6 allocs/op
BenchmarkPrecompiledBn256Pairing/one_point-Gas=79000-12          	    1240	    953811 ns/op	     79000 gas/op	        82.82 mgas/s	   42496 B/op	     389 allocs/op
BenchmarkPrecompiledBn256Pairing/two_point_match_2-Gas=113000-12 	     836	   1410534 ns/op	    113000 gas/op	        80.10 mgas/s	   84529 B/op	     774 allocs/op
BenchmarkPrecompiledBn256Pairing/two_point_match_3-Gas=113000-12 	     837	   1421547 ns/op	    113000 gas/op	        79.48 mgas/s	   84529 B/op	     774 allocs/op
BenchmarkPrecompiledBn256Pairing/two_point_match_4-Gas=113000-12 	     837	   1417557 ns/op	    113000 gas/op	        79.71 mgas/s	   84529 B/op	     774 allocs/op
BenchmarkPrecompiledBn256Pairing/ten_point_match_1-Gas=385000-12 	     231	   5143678 ns/op	    385000 gas/op	        74.84 mgas/s	  420726 B/op	    3836 allocs/op
BenchmarkPrecompiledBn256Pairing/ten_point_match_2-Gas=385000-12 	     230	   5297139 ns/op	    385000 gas/op	        72.67 mgas/s	  420727 B/op	    3836 allocs/op
BenchmarkPrecompiledBn256Pairing/ten_point_match_3-Gas=113000-12 	     840	   1424706 ns/op	    113000 gas/op	        79.31 mgas/s	   84529 B/op	     774 allocs/op

[jwasinger]

this was merged in #32026

[MariusVanDerWijden]

@jwasinger I only merged it into the performance branch, we should keep this PR to merge it into master

[MariusVanDerWijden]

LGTM