Implementation notes: amd64, gcc16, crypto_hash/bash256

Computer: gcc16
Architecture: amd64
CPU ID: AuthenticAMD-00100f23-178bfbff
SUPERCOP version: 20171020
Operation: crypto_hash
Primitive: bash256
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
29599? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2017072020170718
29629? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2017072020170718
29638? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2017072020170718
29641? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2017072020170718
29664? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2017072020170718
29666? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2017072020170718
29799? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2017072020170718
29800? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2017072020170718
29923? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017072020170718
29926? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2017072020170718
29939? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017072020170718
29941? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2017072020170718
29965? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2017072020170718
29965? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2017072020170718
29970? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2017072020170718
29979? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2017072020170718
30000? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2017072020170718
30029? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2017072020170718
30030? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2017072020170718
30036? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2017072020170718
30124? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2017072020170718
30127? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2017072020170718
30169? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2017072020170718
30169? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2017072020170718
30223? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2017072020170718
30223? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2017072020170718
30226? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017072020170718
30226? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2017072020170718
30288? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017072020170718
30288? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2017072020170718
30290? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2017072020170718
30312? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2017072020170718
30492? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2017072020170718
30495? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2017072020170718
30495? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2017072020170718
30689? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2017072020170718
30691? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2017072020170718
30698? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2017072020170718
32857? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2017072020170718
32861? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2017072020170718
32883? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2017072020170718
32889? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2017072020170718
32978? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2017072020170718
32994? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2017072020170718
32995? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2017072020170718
33000? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2017072020170718
39042? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2017072020170718
39042? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2017072020170718
39119? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2017072020170718
39127? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2017072020170718
39158? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2017072020170718
39159? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2017072020170718
39187? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2017072020170718
39188? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2017072020170718
39271? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2017072020170718
39293? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2017072020170718
39293? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2017072020170718
39294? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2017072020170718
39294? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2017072020170718
39296? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2017072020170718
39296? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2017072020170718
39375? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2017072020170718
39375? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2017072020170718
39377? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2017072020170718
39377? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2017072020170718
39377? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2017072020170718
39419? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2017072020170718
39420? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2017072020170718
39484? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2017072020170718

Checksum failure

Implementation: crypto_hash/bash256/ref
Compiler: cc
e8496f7c0a80f87022012d0e76a2ba92f75dbac914504b74b4def5f0e9ec0be8
Number of similar (compiler,implementation) pairs: 25, namely:
CompilerImplementations
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=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:
CompilerImplementations
gcc -m64 -march=barcelona -Os -fomit-frame-pointer ref

Compiler output

Implementation: crypto_hash/bash256/avx2
Compiler: cc
bash_avx2.c: bash_avx2.c:70:2: error: #error "The compiler does not support AVX2 intrinsics."
bash_avx2.c: bash_avx2.c: In function 'bashavx2_F0':
bash_avx2.c: bash_avx2.c:271: error: 'u256' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:271: error: (Each undeclared identifier is reported only once
bash_avx2.c: bash_avx2.c:271: error: for each function it appears in.)
bash_avx2.c: bash_avx2.c:271: error: expected ';' before 'S1'
bash_avx2.c: bash_avx2.c:272: error: expected ';' before 'W0'
bash_avx2.c: bash_avx2.c:273: error: expected ';' before 'W1'
bash_avx2.c: bash_avx2.c:274: error: expected ';' before 'W2'
bash_avx2.c: bash_avx2.c:275: error: expected ';' before 'W3'
bash_avx2.c: bash_avx2.c:276: error: expected ';' before 'W4'
bash_avx2.c: bash_avx2.c:277: error: expected ';' before 'W5'
bash_avx2.c: bash_avx2.c:279: error: 'S2' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W0' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'U0' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W2' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W4' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'S1' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'U2' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'U1' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'T1' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'T2' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'T0' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W1' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W3' undeclared (first use in this function)
bash_avx2.c: ...

Number of similar (compiler,implementation) pairs: 91, namely:
CompilerImplementations
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 -O3 -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 -O3 -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=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: 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: bash_avx2.c: In function 'bashavx2_F0':
bash_avx2.c: bash_avx2.c:271: error: 'u256' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:271: error: (Each undeclared identifier is reported only once
bash_avx2.c: bash_avx2.c:271: error: for each function it appears in.)
bash_avx2.c: bash_avx2.c:271: error: expected ';' before 'S1'
bash_avx2.c: bash_avx2.c:272: error: expected ';' before 'W0'
bash_avx2.c: bash_avx2.c:273: error: expected ';' before 'W1'
bash_avx2.c: bash_avx2.c:274: error: expected ';' before 'W2'
bash_avx2.c: bash_avx2.c:275: error: expected ';' before 'W3'
bash_avx2.c: bash_avx2.c:276: error: expected ';' before 'W4'
bash_avx2.c: bash_avx2.c:277: error: expected ';' before 'W5'
bash_avx2.c: bash_avx2.c:279: error: 'S2' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W0' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'U0' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W2' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W4' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'S1' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'U2' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'U1' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'T1' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'T2' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'T0' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W1' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W3' undeclared (first use in this function)
bash_avx2.c: ...
bash_avx2.c: bash_avx2.c:70:2: error: #error "The compiler does not support AVX2 intrinsics."
bash_avx2.c: bash_avx2.c: In function 'bashavx2_F0':
bash_avx2.c: bash_avx2.c:271: error: 'u256' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:271: error: (Each undeclared identifier is reported only once
bash_avx2.c: bash_avx2.c:271: error: for each function it appears in.)
bash_avx2.c: bash_avx2.c:271: error: expected ';' before 'S1'
bash_avx2.c: bash_avx2.c:272: error: expected ';' before 'W0'
bash_avx2.c: bash_avx2.c:273: error: expected ';' before 'W1'
bash_avx2.c: bash_avx2.c:274: error: expected ';' before 'W2'
bash_avx2.c: bash_avx2.c:275: error: expected ';' before 'W3'
bash_avx2.c: bash_avx2.c:276: error: expected ';' before 'W4'
bash_avx2.c: bash_avx2.c:277: error: expected ';' before 'W5'
bash_avx2.c: bash_avx2.c:279: error: 'S2' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W0' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'U0' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W2' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W4' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'S1' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'U2' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'U1' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'T1' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'T2' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'T0' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W1' undeclared (first use in this function)
bash_avx2.c: bash_avx2.c:279: error: 'W3' undeclared (first use in this function)
bash_avx2.c: ...

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