Implementation notes: amd64, speed2supercop, crypto_hash/cubehash81

Computer: speed2supercop
Microarchitecture: amd64; Haswell+AES (306c3)
Architecture: amd64
CPU ID: GenuineIntel-000306c3-1fc9cbf5
SUPERCOP version: 20240625
Operation: crypto_hash
Primitive: cubehash81

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
206480	1930 0 0	11868 744 800	`T:emmintrin4`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
207904	1417 0 0	11356 744 800	`T:emmintrin3`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
208508	2569 0 0	14813 752 800	`T:emmintrin4`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
208532	1876 0 0	12101 752 800	`T:emmintrin4`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
209764	1775 0 0	14021 752 800	`T:emmintrin3`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
209808	1479 0 0	11709 752 800	`T:emmintrin3`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
210256	3987 0 0	17494 792 744	`T:emmintrin4`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
210332	3987 0 0	17686 792 744	`T:emmintrin4`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
210632	4443 0 0	14102 792 728	`T:emmintrin4`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
210828	1859 0 0	12671 784 792	`T:emmintrin4`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
210908	1788 0 0	10704 728 768	`T:emmintrin4`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
211560	3075 0 0	17030 792 744	`T:emmintrin3`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
211732	3075 0 0	16838 792 744	`T:emmintrin3`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
212028	3451 0 0	13366 792 728	`T:emmintrin3`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
212184	1368 0 0	12175 784 792	`T:emmintrin3`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
212200	1287 0 0	10200 728 768	`T:emmintrin3`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
212800	1060 0 0	11863 784 792	`T:unrolled`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
213668	4677 0 0	16934 792 728	`T:emmintrin4`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
215020	3765 0 0	16278 792 728	`T:emmintrin3`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
216588	1382 0 0	15198 792 744	`T:unrolled`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
222188	2326 0 0	16358 792 744	`T:simple`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
223752	1446 0 0	15270 792 744	`T:simple`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
238312	1535 0 0	13773 752 800	`T:emmintrin2`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
238768	3363 0 0	17318 792 744	`T:emmintrin2`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
238804	3363 0 0	17126 792 744	`T:emmintrin2`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
238972	1145 0 0	11951 784 792	`T:emmintrin2`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
239932	1239 0 0	11180 744 800	`T:emmintrin2`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
242356	4021 0 0	16534 792 728	`T:emmintrin2`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
242968	2820 0 0	12742 792 728	`T:emmintrin2`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
243360	1145 0 0	11373 752 800	`T:emmintrin2`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
247408	3773 0 0	17774 792 744	`T:emmintrin`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
247868	3511 0 0	15749 752 800	`T:emmintrin`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
249664	1213 0 0	11437 752 800	`T:emmintrin`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
250388	1302 0 0	11228 744 800	`T:emmintrin`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
256168	1584 0 0	14126 792 728	`T:simple`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
259248	1197 0 0	11991 784 792	`T:emmintrin`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
260384	1600 0 0	14142 792 728	`T:unrolled`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
269960	2445 0 0	12390 792 728	`T:emmintrin`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
272808	4323 0 0	16862 792 728	`T:emmintrin`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
272920	1025 0 0	9944 728 768	`T:emmintrin2`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
295344	2198 0 0	16206 792 744	`T:unrolled`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
311236	1119 0 0	10032 728 768	`T:emmintrin`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
321496	2389 0 0	16190 792 744	`T:emmintrin`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
580784	2859 0 0	16894 792 744	`T:spec`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
633004	2187 0 0	14742 792 728	`T:spec`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
688284	2131 0 0	15966 792 744	`T:spec`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
698416	2084 0 0	12333 752 800	`T:spec`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
780208	4645 0 0	16885 752 800	`T:simple`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
893064	4911 0 0	17157 752 800	`T:unrolled`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
904724	2629 0 0	12556 744 800	`T:unrolled`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
909388	2699 0 0	12925 752 800	`T:unrolled`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
946820	2287 0 0	11192 728 768	`T:unrolled`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
1102220	3003 0 0	12950 792 728	`T:unrolled`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
1104744	4271 0 0	16533 752 800	`T:spec`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
1880920	1394 0 0	12199 784 792	`T:simple`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
2580116	1355 0 0	11581 752 800	`T:simple`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
2692472	2265 0 0	12212 744 800	`T:spec`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
2721900	2035 0 0	10968 728 768	`T:spec`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
3185420	2082 0 0	12903 784 792	`T:spec`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
3494700	1811 0 0	11758 792 728	`T:simple`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
3953324	1149 0 0	10056 728 768	`T:simple`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
4457196	1300 0 0	11228 744 800	`T:simple`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	20240625
5218036	3617 0 0	13566 792 728	`T:spec`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240703	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_16.0.6_(27+b1))`
`T:emmintrin`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`
`T:emmintrin`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`
`T:emmintrin`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`
`T:emmintrin`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`

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 (13.3.0)`
`T:emmintrin`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:emmintrin`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:emmintrin`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`

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_16.0.6_(27+b1))`
`T:emmintrin2`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`
`T:emmintrin2`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`
`T:emmintrin2`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`
`T:emmintrin2`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`

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 (13.3.0)`
`T:emmintrin2`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:emmintrin2`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:emmintrin2`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`

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_16.0.6_(27+b1))`
`T:simple`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`
`T:simple`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`
`T:simple`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`
`T:simple`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`

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 (13.3.0)`
`T:simple`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:simple`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:simple`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`

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_16.0.6_(27+b1))`
`T:unrolled`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`
`T:unrolled`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`
`T:unrolled`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`
`T:unrolled`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_16.0.6_(27+b1))`

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 (13.3.0)`
`T:unrolled`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:unrolled`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`
`T:unrolled`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.3.0)`