Implementation notes: amd64, wolfdale, crypto_hash/cubehash81

Computer: wolfdale
Microarchitecture: amd64; Core 2 45nm (1067a)
Architecture: amd64
CPU ID: GenuineIntel-0001067a-bfebfbff
SUPERCOP version: 20240625
Operation: crypto_hash
Primitive: cubehash81

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
284580	2767 0 0	14680 780 952	`T:emmintrin4`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
284656	2014 0 0	12984 780 952	`T:emmintrin4`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
285918	2078 0 0	12607 772 952	`T:emmintrin4`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
286588	1989 0 0	13904 780 952	`T:emmintrin3`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
286624	1589 0 0	12568 780 952	`T:emmintrin3`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
288876	1581 0 0	12111 772 952	`T:emmintrin3`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
293206	1799 0 0	11331 756 920	`T:emmintrin4`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
295275	1340 0 0	10883 756 920	`T:emmintrin3`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
298261	1970 0 0	12006 804 888	`T:emmintrin4`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
298865	2049 0 0	12606 804 888	`T:emmintrin4`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
299243	4050 0 0	16024 812 888	`T:emmintrin4`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
300796	1585 0 0	12142 804 888	`T:emmintrin3`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
301652	3087 0 0	15864 812 888	`T:emmintrin3`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
301719	1507 0 0	11542 804 888	`T:emmintrin3`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
301986	4085 0 0	16600 812 888	`T:emmintrin4`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
302003	4082 0 0	16872 812 888	`T:emmintrin4`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
303933	3084 0 0	15320 812 888	`T:emmintrin3`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
303933	3084 0 0	16136 812 888	`T:emmintrin3`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
319984	2756 0 0	14984 812 888	`T:emmintrin2`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
320612	1333 0 0	11855 772 952	`T:emmintrin2`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
322129	2756 0 0	15800 812 888	`T:emmintrin2`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
323888	1616 0 0	13520 780 952	`T:emmintrin2`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
325623	1204 0 0	11238 804 888	`T:emmintrin2`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
325833	2757 0 0	15528 812 888	`T:emmintrin2`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
331035	1218 0 0	12184 780 952	`T:emmintrin2`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
333225	1281 0 0	11838 804 888	`T:emmintrin2`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
361737	1369 0 0	11871 772 952	`T:emmintrin`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
367138	2945 0 0	15992 812 888	`T:emmintrin`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
367184	2819 0 0	15592 812 888	`T:emmintrin`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
367240	2945 0 0	15176 812 888	`T:emmintrin`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
372572	1058 0 0	10595 756 920	`T:emmintrin2`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
374022	1282 0 0	12232 780 952	`T:emmintrin`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
375346	1544 0 0	13456 780 952	`T:emmintrin`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
375481	1232 0 0	11254 804 888	`T:emmintrin`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
380098	1425 0 0	11966 804 888	`T:emmintrin`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
412925	1147 0 0	10675 756 920	`T:emmintrin`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
450879	1802 0 0	14040 812 888	`T:unrolled`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
450980	1802 0 0	14840 812 888	`T:unrolled`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
455150	1380 0 0	11382 804 888	`T:unrolled`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
842787	2513 0 0	15568 812 888	`T:spec`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
902082	2366 0 0	14608 812 888	`T:spec`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
1074097	2632 0 0	14536 780 952	`T:simple`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
1160646	2010 0 0	15048 812 888	`T:simple`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
1163917	2010 0 0	14232 812 888	`T:simple`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
1266007	2744 0 0	14648 780 952	`T:unrolled`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
1270791	2143 0 0	11667 756 920	`T:unrolled`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
1288189	2397 0 0	13352 780 952	`T:unrolled`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
1324003	2394 0 0	12911 772 952	`T:unrolled`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
1328451	2467 0 0	15232 812 888	`T:unrolled`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
1333012	2329 0 0	12854 804 888	`T:unrolled`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
1418588	3778 0 0	15688 780 952	`T:spec`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
1523068	1883 0 0	14648 812 888	`T:simple`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
1726733	3257 0 0	16040 812 888	`T:spec`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
3718804	2413 0 0	13400 780 952	`T:spec`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
3744180	2113 0 0	11675 756 920	`T:spec`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
4041389	2265 0 0	12799 772 952	`T:spec`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
4588281	2036 0 0	12062 804 888	`T:spec`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
5030941	1238 0 0	11254 804 888	`T:simple`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
5091750	1553 0 0	12078 804 888	`T:simple`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
5262843	1418 0 0	12376 780 952	`T:simple`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
6021486	1128 0 0	10651 756 920	`T:simple`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
6111206	1287 0 0	11799 772 952	`T:simple`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625
7548491	2801 0 0	13350 804 888	`T:spec`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240627	20240625

Compiler output

cubehash.c: cubehash.c:26:11: warning: unused variable 'y4' [-Wunused-variable]
cubehash.c:   __m128i y4;
cubehash.c:           ^
cubehash.c: cubehash.c:27:11: warning: unused variable 'y5' [-Wunused-variable]
cubehash.c:   __m128i y5;
cubehash.c:           ^
cubehash.c: cubehash.c:28:11: warning: unused variable 'y6' [-Wunused-variable]
cubehash.c:   __m128i y6;
cubehash.c:           ^
cubehash.c: cubehash.c:29:11: warning: unused variable 'y7' [-Wunused-variable]
cubehash.c:   __m128i y7;
cubehash.c:           ^
cubehash.c: cubehash.c:96:7: warning: unused variable 'j' [-Wunused-variable]
cubehash.c:   int j;
cubehash.c:       ^
cubehash.c: 5 warnings generated.

Number of similar (implementation,compiler) pairs: 5, namely:

Implementation	Compiler
`T:emmintrin`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:emmintrin`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:emmintrin`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:emmintrin`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:emmintrin`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

cubehash.c: cubehash.c: In function 'transform':
cubehash.c: cubehash.c:29:11: warning: unused variable 'y7' [-Wunused-variable]
cubehash.c:    29 |   __m128i y7;
cubehash.c:       |           ^~
cubehash.c: cubehash.c:28:11: warning: unused variable 'y6' [-Wunused-variable]
cubehash.c:    28 |   __m128i y6;
cubehash.c:       |           ^~
cubehash.c: cubehash.c:27:11: warning: unused variable 'y5' [-Wunused-variable]
cubehash.c:    27 |   __m128i y5;
cubehash.c:       |           ^~
cubehash.c: cubehash.c:26:11: warning: unused variable 'y4' [-Wunused-variable]
cubehash.c:    26 |   __m128i y4;
cubehash.c:       |           ^~
cubehash.c: cubehash.c: In function 'Init':
cubehash.c: cubehash.c:96:7: warning: unused variable 'j' [-Wunused-variable]
cubehash.c:    96 |   int j;
cubehash.c:       |       ^

Number of similar (implementation,compiler) pairs: 4, namely:

Implementation	Compiler
`T:emmintrin`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:emmintrin`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:emmintrin`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:emmintrin`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Compiler output

cubehash.c: cubehash.c:25:11: warning: unused variable 'y4' [-Wunused-variable]
cubehash.c:   __m128i y4;
cubehash.c:           ^
cubehash.c: cubehash.c:26:11: warning: unused variable 'y5' [-Wunused-variable]
cubehash.c:   __m128i y5;
cubehash.c:           ^
cubehash.c: cubehash.c:27:11: warning: unused variable 'y6' [-Wunused-variable]
cubehash.c:   __m128i y6;
cubehash.c:           ^
cubehash.c: cubehash.c:28:11: warning: unused variable 'y7' [-Wunused-variable]
cubehash.c:   __m128i y7;
cubehash.c:           ^
cubehash.c: cubehash.c:95:7: warning: unused variable 'j' [-Wunused-variable]
cubehash.c:   int j;
cubehash.c:       ^
cubehash.c: 5 warnings generated.

Number of similar (implementation,compiler) pairs: 5, namely:

Implementation	Compiler
`T:emmintrin2`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:emmintrin2`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:emmintrin2`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:emmintrin2`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:emmintrin2`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

cubehash.c: cubehash.c: In function 'transform':
cubehash.c: cubehash.c:28:11: warning: unused variable 'y7' [-Wunused-variable]
cubehash.c:    28 |   __m128i y7;
cubehash.c:       |           ^~
cubehash.c: cubehash.c:27:11: warning: unused variable 'y6' [-Wunused-variable]
cubehash.c:    27 |   __m128i y6;
cubehash.c:       |           ^~
cubehash.c: cubehash.c:26:11: warning: unused variable 'y5' [-Wunused-variable]
cubehash.c:    26 |   __m128i y5;
cubehash.c:       |           ^~
cubehash.c: cubehash.c:25:11: warning: unused variable 'y4' [-Wunused-variable]
cubehash.c:    25 |   __m128i y4;
cubehash.c:       |           ^~
cubehash.c: cubehash.c: In function 'Init':
cubehash.c: cubehash.c:95:7: warning: unused variable 'j' [-Wunused-variable]
cubehash.c:    95 |   int j;
cubehash.c:       |       ^

Number of similar (implementation,compiler) pairs: 4, namely:

Implementation	Compiler
`T:emmintrin2`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:emmintrin2`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:emmintrin2`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:emmintrin2`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Compiler output

cubehash.c: cubehash.c:37:7: warning: unused variable 'j' [-Wunused-variable]
cubehash.c:   int j;
cubehash.c:       ^
cubehash.c: 1 warning generated.

Number of similar (implementation,compiler) pairs: 5, namely:

Implementation	Compiler
`T:simple`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:simple`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:simple`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:simple`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:simple`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

cubehash.c: cubehash.c: In function 'Init':
cubehash.c: cubehash.c:37:7: warning: unused variable 'j' [-Wunused-variable]
cubehash.c:    37 |   int j;
cubehash.c:       |       ^

Number of similar (implementation,compiler) pairs: 4, namely:

Implementation	Compiler
`T:simple`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:simple`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:simple`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:simple`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Compiler output

cubehash.c: cubehash.c:154:7: warning: unused variable 'j' [-Wunused-variable]
cubehash.c:   int j;
cubehash.c:       ^
cubehash.c: 1 warning generated.

Number of similar (implementation,compiler) pairs: 5, namely:

Implementation	Compiler
`T:unrolled`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:unrolled`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:unrolled`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:unrolled`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:unrolled`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

cubehash.c: cubehash.c: In function 'Init':
cubehash.c: cubehash.c:154:7: warning: unused variable 'j' [-Wunused-variable]
cubehash.c:   154 |   int j;
cubehash.c:       |       ^

Number of similar (implementation,compiler) pairs: 4, namely:

Implementation	Compiler
`T:unrolled`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:unrolled`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:unrolled`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:unrolled`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`