Implementation notes: amd64, hydra1, crypto_hash/bash256

Computer: hydra1
Architecture: amd64
CPU ID: AuthenticAMD-00100fa0-178bfbff
SUPERCOP version: 20161220
Operation: crypto_hash
Primitive: bash256

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
27309	`ref`	`gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer`	20161010	20161009
27310	`ref`	`gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer`	20161010	20161009
27326	`ref`	`gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer`	20161010	20161009
27472	`ref`	`gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer`	20161010	20161009
27552	`ref`	`gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer`	20161010	20161009
27552	`ref`	`gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer`	20161010	20161009
27557	`ref`	`gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer`	20161010	20161009
27573	`ref`	`gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer`	20161010	20161009
27998	`ref`	`gcc -funroll-loops -m64 -O3 -fomit-frame-pointer`	20161010	20161009
28008	`ref`	`gcc -funroll-loops -O3 -fomit-frame-pointer`	20161010	20161009
28013	`ref`	`gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer`	20161010	20161009
28032	`ref`	`gcc -funroll-loops -O2 -fomit-frame-pointer`	20161010	20161009
28032	`ref`	`gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer`	20161010	20161009
28034	`ref`	`gcc -funroll-loops -m64 -O2 -fomit-frame-pointer`	20161010	20161009
28585	`ref`	`gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer`	20161010	20161009
28590	`ref`	`gcc -funroll-loops -march=k8 -O -fomit-frame-pointer`	20161010	20161009
28629	`ref`	`gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer`	20161010	20161009
28661	`ref`	`gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer`	20161010	20161009
28744	`ref`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20161010	20161009
28747	`ref`	`gcc -m64 -march=k8 -O2 -fomit-frame-pointer`	20161010	20161009
28747	`ref`	`gcc -march=k8 -O2 -fomit-frame-pointer`	20161010	20161009
28760	`ref`	`gcc -march=k8 -O3 -fomit-frame-pointer`	20161010	20161009
28768	`ref`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20161010	20161009
28768	`ref`	`gcc -march=barcelona -O2 -fomit-frame-pointer`	20161010	20161009
28768	`ref`	`gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv`	20161010	20161009
28770	`ref`	`gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer`	20161010	20161009
28778	`ref`	`gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv`	20161010	20161009
28783	`ref`	`gcc -march=barcelona -O3 -fomit-frame-pointer`	20161010	20161009
28805	`ref`	`gcc -m64 -march=core2 -O2 -fomit-frame-pointer`	20161010	20161009
28805	`ref`	`gcc -m64 -march=corei7 -O2 -fomit-frame-pointer`	20161010	20161009
28806	`ref`	`gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20161010	20161009
28808	`ref`	`gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20161010	20161009
28853	`ref`	`gcc -m64 -O3 -fomit-frame-pointer`	20161010	20161009
28882	`ref`	`gcc -m64 -O2 -fomit-frame-pointer`	20161010	20161009
28883	`ref`	`gcc -fno-schedule-insns -O2 -fomit-frame-pointer`	20161010	20161009
28909	`ref`	`gcc -O2 -fomit-frame-pointer`	20161010	20161009
28914	`ref`	`gcc -m64 -march=k8 -O3 -fomit-frame-pointer`	20161010	20161009
28917	`ref`	`gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer`	20161010	20161009
28939	`ref`	`gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer`	20161010	20161009
28941	`ref`	`gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer`	20161010	20161009
29013	`ref`	`gcc -O3 -fomit-frame-pointer`	20161010	20161009
29013	`ref`	`gcc -fno-schedule-insns -O3 -fomit-frame-pointer`	20161010	20161009
29049	`ref`	`gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer`	20161010	20161009
29051	`ref`	`gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer`	20161010	20161009
29075	`ref`	`gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer`	20161010	20161009
29079	`ref`	`gcc -funroll-loops -O -fomit-frame-pointer`	20161010	20161009
29091	`ref`	`gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer`	20161010	20161009
29096	`ref`	`gcc -funroll-loops -march=nocona -O -fomit-frame-pointer`	20161010	20161009
29109	`ref`	`gcc -funroll-loops -m64 -O -fomit-frame-pointer`	20161010	20161009
29131	`ref`	`gcc -m64 -march=nocona -O3 -fomit-frame-pointer`	20161010	20161009
29146	`ref`	`gcc -march=nocona -O3 -fomit-frame-pointer`	20161010	20161009
29163	`ref`	`gcc -m64 -march=k8 -O -fomit-frame-pointer`	20161010	20161009
29184	`ref`	`gcc -march=k8 -O -fomit-frame-pointer`	20161010	20161009
29280	`ref`	`gcc -m64 -march=nocona -O2 -fomit-frame-pointer`	20161010	20161009
29280	`ref`	`gcc -march=nocona -O2 -fomit-frame-pointer`	20161010	20161009
29304	`ref`	`gcc -fno-schedule-insns -O -fomit-frame-pointer`	20161010	20161009
29309	`ref`	`gcc -O -fomit-frame-pointer`	20161010	20161009
29310	`ref`	`gcc -m64 -O -fomit-frame-pointer`	20161010	20161009
29320	`ref`	`gcc -m64 -march=core2 -O -fomit-frame-pointer`	20161010	20161009
29323	`ref`	`gcc -m64 -march=corei7 -O -fomit-frame-pointer`	20161010	20161009
29344	`ref`	`gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer`	20161010	20161009
29346	`ref`	`gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20161010	20161009
29349	`ref`	`gcc -march=nocona -O -fomit-frame-pointer`	20161010	20161009
29373	`ref`	`gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer`	20161010	20161009
29381	`ref`	`gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv`	20161010	20161009
29389	`ref`	`gcc -m64 -march=nocona -O -fomit-frame-pointer`	20161010	20161009
29395	`ref`	`gcc -march=barcelona -O -fomit-frame-pointer`	20161010	20161009
29398	`ref`	`gcc -m64 -march=barcelona -O -fomit-frame-pointer`	20161010	20161009
30363	`ref`	`clang -mcpu=cortex-a8 -mfpu=neon -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments`	20161010	20161009
30365	`ref`	`clang -O3 -fomit-frame-pointer -Qunused-arguments`	20161010	20161009
30368	`ref`	`clang -mcpu=cortex-a9 -mfpu=neon -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments`	20161010	20161009
30378	`ref`	`clang -mcpu=native -mfpu=neon -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments`	20161010	20161009
30526	`ref`	`clang -O3 -fwrapv -march=native -fomit-frame-pointer -Qunused-arguments`	20161010	20161009
30526	`ref`	`clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments`	20161010	20161009

Checksum failure

Implementation: crypto_hash/bash256/ref
Compiler: cc

e8496f7c0a80f87022012d0e76a2ba92f75dbac914504b74b4def5f0e9ec0be8

Number of similar (compiler,implementation) pairs: 26, namely:

Compiler	Implementations
cc	ref
gcc	ref
gcc -Os -fomit-frame-pointer	ref
gcc -fno-schedule-insns -Os -fomit-frame-pointer	ref
gcc -funroll-loops	ref
gcc -funroll-loops -Os -fomit-frame-pointer	ref
gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -Os -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer	ref
gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer	ref
gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer	ref
gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer	ref
gcc -m64 -Os -fomit-frame-pointer	ref
gcc -m64 -march=core2 -Os -fomit-frame-pointer	ref
gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer	ref
gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer	ref
gcc -m64 -march=corei7 -Os -fomit-frame-pointer	ref
gcc -m64 -march=k8 -Os -fomit-frame-pointer	ref
gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer	ref
gcc -m64 -march=nocona -Os -fomit-frame-pointer	ref
gcc -march=barcelona -Os -fomit-frame-pointer	ref
gcc -march=k8 -Os -fomit-frame-pointer	ref
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv	ref
gcc -march=nocona -Os -fomit-frame-pointer	ref

Checksum failure

Implementation: crypto_hash/bash256/ref
Compiler: gcc -m64 -march=barcelona -Os -fomit-frame-pointer

e8496f7c0a80f87022012d0e76a2ba92f75dbac914504b74b4def5f0e9ec0be8 e8496f7c0a80f87022012d0e76a2ba92f75dbac914504b74b4def5f0e9ec0be8

Number of similar (compiler,implementation) pairs: 1, namely:

Compiler	Implementations
gcc -m64 -march=barcelona -Os -fomit-frame-pointer	ref

Test failure

Implementation: crypto_hash/bash256/ref
Compiler: gcc -m64 -march=core2 -O3 -fomit-frame-pointer

error 111

Number of similar (compiler,implementation) pairs: 1, namely:

Compiler	Implementations
gcc -m64 -march=core2 -O3 -fomit-frame-pointer	ref

Compiler output

Implementation: crypto_hash/bash256/avx2
Compiler: cc

Number of similar (compiler,implementation) pairs: 92, namely:

Compiler	Implementations
cc	avx2
gcc	avx2
gcc -O2 -fomit-frame-pointer	avx2
gcc -O3 -fomit-frame-pointer	avx2
gcc -O -fomit-frame-pointer	avx2
gcc -Os -fomit-frame-pointer	avx2
gcc -fno-schedule-insns -O2 -fomit-frame-pointer	avx2
gcc -fno-schedule-insns -O3 -fomit-frame-pointer	avx2
gcc -fno-schedule-insns -O -fomit-frame-pointer	avx2
gcc -fno-schedule-insns -Os -fomit-frame-pointer	avx2
gcc -funroll-loops	avx2
gcc -funroll-loops -O2 -fomit-frame-pointer	avx2
gcc -funroll-loops -O3 -fomit-frame-pointer	avx2
gcc -funroll-loops -O -fomit-frame-pointer	avx2
gcc -funroll-loops -Os -fomit-frame-pointer	avx2
gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer	avx2
gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer	avx2
gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer	avx2
gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -O2 -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -O3 -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -O -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -Os -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer	avx2
gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer	avx2
gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer	avx2
gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer	avx2
gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer	avx2
gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer	avx2
gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer	avx2
gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer	avx2
gcc -funroll-loops -march=k8 -O -fomit-frame-pointer	avx2
gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer	avx2
gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer	avx2
gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer	avx2
gcc -funroll-loops -march=nocona -O -fomit-frame-pointer	avx2
gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer	avx2
gcc -m64 -O2 -fomit-frame-pointer	avx2
gcc -m64 -O3 -fomit-frame-pointer	avx2
gcc -m64 -O -fomit-frame-pointer	avx2
gcc -m64 -Os -fomit-frame-pointer	avx2
gcc -m64 -march=core2 -O2 -fomit-frame-pointer	avx2
gcc -m64 -march=core2 -O3 -fomit-frame-pointer	avx2
gcc -m64 -march=core2 -O -fomit-frame-pointer	avx2
gcc -m64 -march=core2 -Os -fomit-frame-pointer	avx2
gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer	avx2
gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer	avx2
gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer	avx2
gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer	avx2
gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer	avx2
gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer	avx2
gcc -m64 -march=corei7 -O2 -fomit-frame-pointer	avx2
gcc -m64 -march=corei7 -O -fomit-frame-pointer	avx2
gcc -m64 -march=corei7 -Os -fomit-frame-pointer	avx2
gcc -m64 -march=k8 -O2 -fomit-frame-pointer	avx2
gcc -m64 -march=k8 -O3 -fomit-frame-pointer	avx2
gcc -m64 -march=k8 -O -fomit-frame-pointer	avx2
gcc -m64 -march=k8 -Os -fomit-frame-pointer	avx2
gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer	avx2
gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer	avx2
gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer	avx2
gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer	avx2
gcc -m64 -march=nocona -O2 -fomit-frame-pointer	avx2
gcc -m64 -march=nocona -O3 -fomit-frame-pointer	avx2
gcc -m64 -march=nocona -O -fomit-frame-pointer	avx2
gcc -m64 -march=nocona -Os -fomit-frame-pointer	avx2
gcc -march=barcelona -O2 -fomit-frame-pointer	avx2
gcc -march=barcelona -O3 -fomit-frame-pointer	avx2
gcc -march=barcelona -O -fomit-frame-pointer	avx2
gcc -march=barcelona -Os -fomit-frame-pointer	avx2
gcc -march=k8 -O2 -fomit-frame-pointer	avx2
gcc -march=k8 -O3 -fomit-frame-pointer	avx2
gcc -march=k8 -O -fomit-frame-pointer	avx2
gcc -march=k8 -Os -fomit-frame-pointer	avx2
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv	avx2
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv	avx2
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv	avx2
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv	avx2
gcc -march=nocona -O2 -fomit-frame-pointer	avx2
gcc -march=nocona -O3 -fomit-frame-pointer	avx2
gcc -march=nocona -O -fomit-frame-pointer	avx2
gcc -march=nocona -Os -fomit-frame-pointer	avx2

Compiler output

Implementation: crypto_hash/bash256/avx2
Compiler: clang -O3 -fomit-frame-pointer -Qunused-arguments

bash_avx2.c: bash_avx2.c:70:2: error: "The compiler does not support AVX2 intrinsics."
bash_avx2.c: #error "The compiler does not support AVX2 intrinsics."
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:271:5: error: use of undeclared identifier 'u256'
bash_avx2.c: u256 S1,S2,T0,T1,T2,U0,U1,U2;
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:272:5: error: use of undeclared identifier 'u256'
bash_avx2.c: u256 W0 = LOADW( S + 0 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:273:5: error: use of undeclared identifier 'u256'
bash_avx2.c: u256 W1 = LOADW( S + 4 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:274:5: error: use of undeclared identifier 'u256'
bash_avx2.c: u256 W2 = LOADW( S + 8 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:275:5: error: use of undeclared identifier 'u256'
bash_avx2.c: u256 W3 = LOADW( S + 12 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:276:5: error: use of undeclared identifier 'u256'
bash_avx2.c: u256 W4 = LOADW( S + 16 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:277:5: error: use of undeclared identifier 'u256'
bash_avx2.c: u256 W5 = LOADW( S + 20 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:279:34: error: use of undeclared identifier 'S2'
bash_avx2.c: ...

Number of similar (compiler,implementation) pairs: 6, namely:

Compiler	Implementations
clang -O3 -fomit-frame-pointer -Qunused-arguments	avx2
clang -O3 -fwrapv -march=native -fomit-frame-pointer -Qunused-arguments	avx2
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments	avx2
clang -mcpu=cortex-a8 -mfpu=neon -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments	avx2
clang -mcpu=cortex-a9 -mfpu=neon -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments	avx2
clang -mcpu=native -mfpu=neon -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments	avx2

Compiler output

Implementation: crypto_hash/bash256/avx2
Compiler: gcc -m64 -march=barcelona -O2 -fomit-frame-pointer

bash_avx2.c: bash_avx2.c:70:2: error: #error "The compiler does not support AVX2 intrinsics."
bash_avx2.c: #error "The compiler does not support AVX2 intrinsics."
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c: In function 'bashavx2_F0':
bash_avx2.c: bash_avx2.c:271:5: error: unknown type name 'u256'
bash_avx2.c: u256 S1,S2,T0,T1,T2,U0,U1,U2;
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:272:5: error: unknown type name 'u256'
bash_avx2.c: u256 W0 = LOADW( S + 0 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:272:15: warning: implicit declaration of function 'LOADW' [-Wimplicit-function-declaration]
bash_avx2.c: u256 W0 = LOADW( S + 0 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:273:5: error: unknown type name 'u256'
bash_avx2.c: u256 W1 = LOADW( S + 4 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:274:5: error: unknown type name 'u256'
bash_avx2.c: u256 W2 = LOADW( S + 8 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:275:5: error: unknown type name 'u256'
bash_avx2.c: u256 W3 = LOADW( S + 12 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:276:5: error: unknown type name 'u256'
bash_avx2.c: u256 W4 = LOADW( S + 16 );
bash_avx2.c: ^
bash_avx2.c: ...
bash_avx2.c: bash_avx2.c:70:2: error: #error "The compiler does not support AVX2 intrinsics."
bash_avx2.c: #error "The compiler does not support AVX2 intrinsics."
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c: In function 'bashavx2_F0':
bash_avx2.c: bash_avx2.c:271:5: error: unknown type name 'u256'
bash_avx2.c: u256 S1,S2,T0,T1,T2,U0,U1,U2;
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:272:5: error: unknown type name 'u256'
bash_avx2.c: u256 W0 = LOADW( S + 0 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:272:15: warning: implicit declaration of function 'LOADW' [-Wimplicit-function-declaration]
bash_avx2.c: u256 W0 = LOADW( S + 0 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:273:5: error: unknown type name 'u256'
bash_avx2.c: u256 W1 = LOADW( S + 4 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:274:5: error: unknown type name 'u256'
bash_avx2.c: u256 W2 = LOADW( S + 8 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:275:5: error: unknown type name 'u256'
bash_avx2.c: u256 W3 = LOADW( S + 12 );
bash_avx2.c: ^
bash_avx2.c: bash_avx2.c:276:5: error: unknown type name 'u256'
bash_avx2.c: u256 W4 = LOADW( S + 16 );
bash_avx2.c: ^
bash_avx2.c: ...

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

Compiler	Implementations
gcc -m64 -march=barcelona -O2 -fomit-frame-pointer	avx2
gcc -m64 -march=barcelona -O3 -fomit-frame-pointer	avx2
gcc -m64 -march=barcelona -O -fomit-frame-pointer	avx2
gcc -m64 -march=barcelona -Os -fomit-frame-pointer	avx2