Implementation notes: amd64, hydra4, crypto_hash/jh256

Computer: hydra4
Microarchitecture: amd64; K10 32nm (300f10)
Architecture: amd64
CPU ID: AuthenticAMD-00300f10-178bfbff
SUPERCOP version: 20240716
Operation: crypto_hash
Primitive: jh256

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
30338	7978 0 0	18583 772 952	`T:bitslice_sse2_opt64`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
31273	9356 0 0	21880 780 952	`T:bitslice_sse2_opt64`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
31345	6895 0 0	17062 804 888	`T:bitslice_sse2_opt64`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
31662	8504 0 0	19920 812 888	`T:bitslice_sse2_opt64`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
31668	8504 0 0	20784 812 888	`T:bitslice_sse2_opt64`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
31694	8504 0 0	20784 812 888	`T:bitslice_sse2_opt64`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
31756	6920 0 0	17598 804 888	`T:bitslice_sse2_opt64`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
31782	6840 0 0	16982 804 888	`T:bitslice_sse2_opt32`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
31845	7918 0 0	19264 780 952	`T:bitslice_sse2_opt64`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
32172	8456 0 0	20736 812 888	`T:bitslice_sse2_opt32`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
32237	8456 0 0	19872 812 888	`T:bitslice_sse2_opt32`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
32284	8456 0 0	20736 812 888	`T:bitslice_sse2_opt32`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
32401	6872 0 0	17550 804 888	`T:bitslice_sse2_opt32`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
33269	6336 0 0	15971 756 920	`T:bitslice_sse2_opt64`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
33307	7854 0 0	19200 780 952	`T:bitslice_sse2_opt32`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
33553	7932 0 0	18519 772 952	`T:bitslice_sse2_opt32`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
34559	9452 0 0	21976 780 952	`T:bitslice_sse2_opt32`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
36738	6443 0 0	16099 756 920	`T:bitslice_sse2_opt32`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
55075	7013 0 0	19560 780 952	`T:bitslice_ref32`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
62039	7306 0 0	16931 756 920	`T:simple`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
62154	7686 0 0	19008 780 952	`T:simple`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
62327	7686 0 0	20184 780 952	`T:simple`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
63495	7476 0 0	18047 772 952	`T:simple`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
64197	8047 0 0	18662 804 888	`T:simple`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
64236	8047 0 0	20072 812 888	`T:simple`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
64275	7919 0 0	18030 804 888	`T:simple`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
64286	8047 0 0	20904 812 888	`T:simple`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
64291	8047 0 0	20904 812 888	`T:simple`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
69361	10638 0 0	23560 812 888	`T:bitslice_opt64`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
69365	10638 0 0	23560 812 888	`T:bitslice_opt64`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
74243	7729 0 0	20280 780 952	`T:bitslice_ref64`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
74769	7478 0 0	18816 780 952	`T:bitslice_opt64`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
75976	8366 0 0	20424 812 888	`T:bitslice_opt64`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
76226	7522 0 0	18111 772 952	`T:bitslice_opt64`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
76548	6629 0 0	16291 756 920	`T:bitslice_opt64`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
77961	6508 0 0	16662 804 888	`T:bitslice_opt64`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
78041	6912 0 0	17582 804 888	`T:bitslice_opt64`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
87549	7569 0 0	20520 812 888	`T:bitslice_ref64`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
87607	7569 0 0	20520 812 888	`T:bitslice_ref64`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
101118	7009 0 0	19112 812 888	`T:bitslice_ref64`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
117613	5926 0 0	17296 780 952	`T:bitslice_ref64`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
122076	4485 0 0	14678 804 888	`T:bitslice_ref64`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
123648	5745 0 0	16391 772 952	`T:bitslice_ref64`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
128413	4779 0 0	14491 756 920	`T:bitslice_ref64`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
130997	5008 0 0	15694 804 888	`T:bitslice_ref64`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
145881	8152 0 0	21064 812 888	`T:bitslice_opt32`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
145915	8152 0 0	21064 812 888	`T:bitslice_opt32`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
147023	7560 0 0	19624 812 888	`T:bitslice_opt32`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
150179	6317 0 0	15971 756 920	`T:bitslice_opt32`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
150743	5798 0 0	15958 804 888	`T:bitslice_opt32`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
153103	7208 0 0	20136 812 888	`T:bitslice_ref32`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
153143	7208 0 0	20136 812 888	`T:bitslice_ref32`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
154445	6664 0 0	18760 812 888	`T:bitslice_ref32`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
157474	6672 0 0	17358 804 888	`T:bitslice_opt32`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
157927	7350 0 0	18688 780 952	`T:bitslice_opt32`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
166980	7455 0 0	18047 772 952	`T:bitslice_opt32`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
183255	4313 0 0	14486 804 888	`T:bitslice_ref32`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
223548	5495 0 0	16135 772 952	`T:bitslice_ref32`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
225340	4784 0 0	15470 804 888	`T:bitslice_ref32`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
237685	4438 0 0	14123 756 920	`T:bitslice_ref32`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
238436	5734 0 0	17104 780 952	`T:bitslice_ref32`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625

Checksum failure

8f9d32d52f66a8bf0a419689a22124769a9c55c7557be2938d8f7ce934f8cee6

Number of similar (implementation,compiler) pairs: 2, namely:

Implementation	Compiler
`T:bitslice_opt32`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_opt64`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Compiler output

nist.c: In file included from nist.c:2:
nist.c: ./jh_ansi_opt32.h:277:20: warning: unused variable 'i' [-Wunused-variable]
nist.c:       unsigned int i;
nist.c:                    ^
nist.c: 1 warning generated.

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

Implementation	Compiler
`T:bitslice_opt32`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_opt32`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_opt32`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_opt32`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_opt32`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

nist.c: In file included from nist.c:2:
nist.c: jh_ansi_opt32.h: In function 'Final':
nist.c: jh_ansi_opt32.h:277:20: warning: unused variable 'i' [-Wunused-variable]
nist.c:   277 |       unsigned int i;
nist.c:       |                    ^

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

Implementation	Compiler
`T:bitslice_opt32`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_opt32`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_opt32`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_opt32`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Compiler output

nist.c: In file included from nist.c:2:
nist.c: ./jh_ansi_opt64.h:274:20: warning: unused variable 'i' [-Wunused-variable]
nist.c:       unsigned int i;
nist.c:                    ^
nist.c: 1 warning generated.

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

Implementation	Compiler
`T:bitslice_opt64`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_opt64`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_opt64`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_opt64`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_opt64`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

nist.c: In file included from nist.c:2:
nist.c: jh_ansi_opt64.h: In function 'Final':
nist.c: jh_ansi_opt64.h:274:20: warning: unused variable 'i' [-Wunused-variable]
nist.c:   274 |       unsigned int i;
nist.c:       |                    ^

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

Implementation	Compiler
`T:bitslice_opt64`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_opt64`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_opt64`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_opt64`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Compiler output

nist.c: In file included from nist.c:2:
nist.c: ./jh_bitslice_ref32.h:267:20: warning: unused variable 'i' [-Wunused-variable]
nist.c:       unsigned int i;
nist.c:                    ^
nist.c: 1 warning generated.

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

Implementation	Compiler
`T:bitslice_ref32`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_ref32`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_ref32`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_ref32`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_ref32`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

nist.c: In file included from nist.c:2:
nist.c: jh_bitslice_ref32.h: In function 'Final':
nist.c: jh_bitslice_ref32.h:267:20: warning: unused variable 'i' [-Wunused-variable]
nist.c:   267 |       unsigned int i;
nist.c:       |                    ^

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

Implementation	Compiler
`T:bitslice_ref32`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_ref32`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_ref32`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_ref32`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Compiler output

nist.c: In file included from nist.c:2:
nist.c: ./jh_bitslice_ref64.h:255:20: warning: unused variable 'i' [-Wunused-variable]
nist.c:       unsigned int i;
nist.c:                    ^
nist.c: 1 warning generated.

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

Implementation	Compiler
`T:bitslice_ref64`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_ref64`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_ref64`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_ref64`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:bitslice_ref64`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

nist.c: In file included from nist.c:2:
nist.c: jh_bitslice_ref64.h: In function 'Final':
nist.c: jh_bitslice_ref64.h:255:20: warning: unused variable 'i' [-Wunused-variable]
nist.c:   255 |       unsigned int i;
nist.c:       |                    ^

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

Implementation	Compiler
`T:bitslice_ref64`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_ref64`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_ref64`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:bitslice_ref64`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Compiler output

hash.c: hash.c:201:7: warning: unused variable 'i' [-Wunused-variable]
hash.c:   int i;
hash.c:       ^
hash.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

hash.c: hash.c: In function 'crypto_hash_jh256_simple_timingleaks':
hash.c: hash.c:201:7: warning: unused variable 'i' [-Wunused-variable]
hash.c:   201 |   int i;
hash.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)`