Implementation notes: mipso32, gcc23, crypto_hash/keccakc256

Computer: gcc23
Microarchitecture: mipso32; Octeon II (cnmips64v2)
Architecture: mipso32
CPU ID: unknown CPU ID
SUPERCOP version: 20230530
Operation: crypto_hash
Primitive: keccakc256

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
146516	26032 0 0	43466 396 760	`T:opt32bi-s2lcu4`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
147444	16448 0 0	33771 388 760	`T:opt32bi-rvku2`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
148088	5504 0 0	20556 328 760	`T:simple32bi`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
149616	45184 0 0	62652 392 760	`T:opt64lcu6`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
158188	8864 0 0	23917 328 760	`T:inplace32bi`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
159514	10624 0 0	25666 328 760	`T:inplace`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
159830	47952 0 0	65402 392 760	`T:opt64u6`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
162284	6080 0 0	21118 328 760	`T:simple`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
180044	25680 0 16	43278 428 262920	`T:opt32biT-s2lcu4`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
219646	37376 0 0	57257 392 760	`T:opt32bi-s2lcu4`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
220044	36752 0 0	54626 400 760	`T:opt32bi-s2lcu4`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
237996	45328 0 0	63784 392 760	`T:opt64lcu6`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
246030	48144 0 0	66582 392 760	`T:opt64u6`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
248716	26544 0 0	45158 404 760	`T:opt32bi-s2lcu4`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
249782	10752 0 0	26974 336 760	`T:inplace`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
251110	6256 0 0	22474 336 760	`T:simple`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
251666	16720 0 0	35223 396 760	`T:opt32bi-rvku2`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
253256	5664 0 0	21896 336 760	`T:simple32bi`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
256044	37184 0 16	57172 420 262920	`T:opt32biT-s2lcu4`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
263474	36416 0 16	54462 432 262920	`T:opt32biT-s2lcu4`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
268524	8944 0 0	25177 336 760	`T:inplace32bi`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
276992	13648 0 0	29193 336 760	`T:inplace32bi`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
284666	13904 0 0	31490 332 760	`T:inplace32bi`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
290116	26224 0 16	45002 436 262920	`T:opt32biT-s2lcu4`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
308558	24896 0 0	44666 384 760	`T:opt32bi-rvku2`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
308812	24256 0 0	42019 392 760	`T:opt32bi-rvku2`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
313852	15312 0 0	32867 328 760	`T:simple32bi`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
313966	7968 0 0	23512 336 760	`T:simple32bi`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
316710	72544 0 0	90312 396 760	`T:opt64lcu6`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
316794	72768 0 0	92582 392 760	`T:opt64lcu6`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
353154	80944 0 0	100740 392 760	`T:opt64u6`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
353164	80720 0 0	98470 396 760	`T:opt64u6`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
388608	18560 0 0	34094 336 760	`T:inplace`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
388608	36448 0 0	54032 332 760	`T:inplace`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
408452	156768 0 0	174189 396 760	`T:opt64lcu24`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
416066	5664 0 0	23365 344 760	`T:compact`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
418212	20160 0 0	37740 332 760	`T:simple`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
418226	10416 0 0	25946 336 760	`T:simple`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
452488	156784 0 0	175193 396 760	`T:opt64lcu24`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
659996	2752 0 0	18403 348 760	`T:compact`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
745120	265280 0 0	283001 404 760	`T:opt64lcu24`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
747068	265488 0 0	285255 400 760	`T:opt64lcu24`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
840196	2384 192 0	17928 532 760	`T:compact8`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
874376	4752 192 0	22348 528 760	`T:compact8`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
1139148	3024 0 0	19363 348 760	`T:compact`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
1248910	2320 192 0	18641 544 760	`T:compact8`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
1388608	2272 192 0	17605 544 760	`T:compact8`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506
1526812	2656 0 0	18007 348 760	`T:compact`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20220531	20220506

Namespace violations

Implementation: T:compact
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

Keccak-compact.o Final T
Keccak-compact.o Init T
Keccak-compact.o KeccakF T
Keccak-compact.o KeccakF_Mod5 R
Keccak-compact.o KeccakF_PiLane R
Keccak-compact.o KeccakF_RotationConstants R
Keccak-compact.o KeccakF_RoundConstants R
Keccak-compact.o Update T

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:compact
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:compact
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:compact
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:compact

Namespace violations

Implementation: T:compact8
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

Keccak-compact8.o Final T
Keccak-compact8.o Init T
Keccak-compact8.o KeccakF T
Keccak-compact8.o Update T
Keccak-compact8.o rotate64_1bit_left T
Keccak-compact8.o rotate64left T
Keccak-compact8.o xorBytes T
Keccak-compact8.o xorLanes T

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:compact8
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:compact8
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:compact8
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:compact8

Namespace violations

Implementation: T:inplace
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

Keccak-inplace.o KeccakF T
Keccak-inplace.o KeccakF1600RoundConstants R

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:inplace
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:inplace
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:inplace
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:inplace

Namespace violations

Implementation: T:inplace32bi
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

Keccak-inplace32BI.o KeccakF T
Keccak-inplace32BI.o extractFromState T

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:inplace32bi
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:inplace32bi
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:inplace32bi
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:inplace32bi

Namespace violations

Implementation: T:opt32bi-rvku2
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

KeccakF-1600-opt32.o KeccakAbsorb T
KeccakF-1600-opt32.o KeccakAbsorb1344bits T
KeccakF-1600-opt32.o KeccakExtract T
KeccakF-1600-opt32.o KeccakInitialize T
KeccakF-1600-opt32.o KeccakInitializeState T
KeccakF-1600-opt32.o KeccakPermutation T
KeccakF-1600-opt32.o KeccakPermutationOnWords T
KeccakF-1600-opt32.o KeccakPermutationOnWordsAfterXoring T
KeccakF-1600-opt32.o KeccakPermutationOnWordsAfterXoring1344bits T
KeccakF-1600-opt32.o fromInterleaving T
KeccakF-1600-opt32.o setInterleavedWordsInto8bytes T
KeccakSponge.o Absorb T
KeccakSponge.o AbsorbQueue T
KeccakSponge.o InitSponge T
KeccakSponge.o PadAndSwitchToSqueezingPhase T
KeccakSponge.o Squeeze T

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt32bi-rvku2
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt32bi-rvku2
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt32bi-rvku2
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt32bi-rvku2

Namespace violations

Implementation: T:opt32bi-s2lcu4
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

KeccakF-1600-opt32.o KeccakAbsorb T
KeccakF-1600-opt32.o KeccakAbsorb1344bits T
KeccakF-1600-opt32.o KeccakExtract T
KeccakF-1600-opt32.o KeccakF1600RoundConstants_int2_0 R
KeccakF-1600-opt32.o KeccakF1600RoundConstants_int2_1 R
KeccakF-1600-opt32.o KeccakInitialize T
KeccakF-1600-opt32.o KeccakInitializeState T
KeccakF-1600-opt32.o KeccakPermutation T
KeccakF-1600-opt32.o KeccakPermutationOnWords T
KeccakF-1600-opt32.o KeccakPermutationOnWordsAfterXoring T
KeccakF-1600-opt32.o KeccakPermutationOnWordsAfterXoring1344bits T
KeccakF-1600-opt32.o fromInterleaving T
KeccakF-1600-opt32.o setInterleavedWordsInto8bytes T
KeccakSponge.o Absorb T
KeccakSponge.o AbsorbQueue T
KeccakSponge.o InitSponge T
KeccakSponge.o PadAndSwitchToSqueezingPhase T
KeccakSponge.o Squeeze T

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt32bi-s2lcu4
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt32bi-s2lcu4
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt32bi-s2lcu4
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt32bi-s2lcu4

Namespace violations

Implementation: T:opt32biT-s2lcu4
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

KeccakF-1600-opt32.o KeccakAbsorb T
KeccakF-1600-opt32.o KeccakAbsorb1344bits T
KeccakF-1600-opt32.o KeccakExtract T
KeccakF-1600-opt32.o KeccakF1600RoundConstants_int2_0 R
KeccakF-1600-opt32.o KeccakF1600RoundConstants_int2_1 R
KeccakF-1600-opt32.o KeccakInitialize T
KeccakF-1600-opt32.o KeccakInitializeState T
KeccakF-1600-opt32.o KeccakPermutation T
KeccakF-1600-opt32.o KeccakPermutationOnWords T
KeccakF-1600-opt32.o KeccakPermutationOnWordsAfterXoring T
KeccakF-1600-opt32.o KeccakPermutationOnWordsAfterXoring1344bits T
KeccakF-1600-opt32.o buildInterleaveTables T
KeccakF-1600-opt32.o deinterleaveTable C
KeccakF-1600-opt32.o interleaveTable C
KeccakF-1600-opt32.o interleaveTablesBuilt B
KeccakF-1600-opt32.o setInterleavedWordsInto8bytes T
KeccakF-1600-opt32.o xor8bytesIntoInterleavedWords T
KeccakSponge.o Absorb T
KeccakSponge.o AbsorbQueue T
KeccakSponge.o InitSponge T
KeccakSponge.o PadAndSwitchToSqueezingPhase T
KeccakSponge.o Squeeze T

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt32biT-s2lcu4
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt32biT-s2lcu4
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt32biT-s2lcu4
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt32biT-s2lcu4

Namespace violations

Implementation: T:opt64lcu24
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

KeccakF-1600-opt64.o KeccakAbsorb T
KeccakF-1600-opt64.o KeccakAbsorb1344bits T
KeccakF-1600-opt64.o KeccakExtract T
KeccakF-1600-opt64.o KeccakF1600RoundConstants R
KeccakF-1600-opt64.o KeccakInitialize T
KeccakF-1600-opt64.o KeccakInitializeState T
KeccakF-1600-opt64.o KeccakPermutation T
KeccakF-1600-opt64.o KeccakPermutationOnWords T
KeccakF-1600-opt64.o KeccakPermutationOnWordsAfterXoring T
KeccakF-1600-opt64.o KeccakPermutationOnWordsAfterXoring1344bits T
KeccakF-1600-opt64.o fromBytesToWord T
KeccakF-1600-opt64.o fromWordToBytes T
KeccakSponge.o Absorb T
KeccakSponge.o AbsorbQueue T
KeccakSponge.o InitSponge T
KeccakSponge.o PadAndSwitchToSqueezingPhase T
KeccakSponge.o Squeeze T

Number of similar (compiler,implementation) pairs: 12, namely:

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt64lcu24
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt64lcu24
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt64lcu24
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt64lcu24
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt64lcu6
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt64lcu6
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt64lcu6
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt64lcu6
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt64u6
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt64u6
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt64u6
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:opt64u6

Namespace violations

Implementation: T:simple
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

Keccak-simple.o KeccakF T
Keccak-simple.o KeccakF_RoundConstants R

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:simple
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:simple
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:simple
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:simple

Namespace violations

Implementation: T:simple32bi
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

Keccak-simple32BI.o KeccakF T
Keccak-simple32BI.o extractFromState T

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:simple32bi
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:simple32bi
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:simple32bi
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:simple32bi