Implementation notes: amd64, hydra4, crypto_encode/857x3

Computer: hydra4
Microarchitecture: amd64; K10 32nm (300f10)
Architecture: amd64
CPU ID: AuthenticAMD-00300f10-178bfbff
SUPERCOP version: 20240625
Operation: crypto_encode
Primitive: 857x3
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
362836 0 012760 780 952refgcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024062620240625
1259148 0 010896 780 952refgcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024062620240625
1289122 0 09307 756 920refgcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024062620240625
1323128 0 010223 772 952refgcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024062620240625
1337127 0 011632 812 888refclang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062620240625
1337127 0 012464 812 888refclang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062620240625
1337127 0 012464 812 888refclang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062620240625
1340127 0 010222 804 888refclang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062620240625
1534111 0 09686 804 888refclang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062620240625

Compiler output


encode.c: encode.c:26:18: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_encode_857x3_avx_constbranchindex' that is compiled without support for 'avx'
encode.c:     __m256i f0 = _mm256_loadu_si256((const __m256i *) (f+0));
encode.c:                  ^
encode.c: encode.c:26:18: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
encode.c: encode.c:27:18: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_encode_857x3_avx_constbranchindex' that is compiled without support for 'avx'
encode.c:     __m256i f1 = _mm256_loadu_si256((const __m256i *) (f+32));
encode.c:                  ^
encode.c: encode.c:27:18: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
encode.c: encode.c:28:18: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_encode_857x3_avx_constbranchindex' that is compiled without support for 'avx'
encode.c:     __m256i f2 = _mm256_loadu_si256((const __m256i *) (f+64));
encode.c:                  ^
encode.c: encode.c:28:18: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
encode.c: encode.c:29:18: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_encode_857x3_avx_constbranchindex' that is compiled without support for 'avx'
encode.c:     __m256i f3 = _mm256_loadu_si256((const __m256i *) (f+96));
encode.c:                  ^
encode.c: encode.c:29:18: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
encode.c: encode.c:33:18: error: always_inline function '_mm256_packus_epi16' requires target feature 'avx2', but would be inlined into function 'crypto_encode_857x3_avx_constbranchindex' that is compiled without support for 'avx2'
encode.c:     __m256i a0 = _mm256_packus_epi16(f0&lobytes,f1&lobytes);
encode.c:                  ^
encode.c: encode.c:33:18: error: AVX vector argument of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
encode.c: encode.c:36:38: error: always_inline function '_mm256_srli_epi16' requires target feature 'avx2', but would be inlined into function 'crypto_encode_857x3_avx_constbranchindex' that is compiled without support for 'avx2'
encode.c:     __m256i a1 = _mm256_packus_epi16(_mm256_srli_epi16(f0,8),_mm256_srli_epi16(f1,8));
encode.c:                                      ^
encode.c: encode.c:36:38: error: AVX vector argument of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
encode.c: encode.c:36:62: error: always_inline function '_mm256_srli_epi16' requires target feature 'avx2', but would be inlined into function 'crypto_encode_857x3_avx_constbranchindex' that is compiled without support for 'avx2'
encode.c: ...

Number of similar (implementation,compiler) pairs: 5, namely:
ImplementationCompiler
avxclang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
avxclang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
avxclang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
avxclang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
avxclang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)

Compiler output


encode.c: encode.c: In function 'crypto_encode_857x3_avx_constbranchindex':
encode.c: encode.c:26:13: warning: AVX vector return without AVX enabled changes the ABI [-Wpsabi]
encode.c:    26 |     __m256i f0 = _mm256_loadu_si256((const __m256i *) (f+0));
encode.c:       |             ^~
encode.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/10/include/immintrin.h:51,
encode.c:                  from encode.c:1:
encode.c: /usr/lib/gcc/x86_64-linux-gnu/10/include/avxintrin.h:926:1: error: inlining failed in call to 'always_inline' '_mm256_storeu_si256': target specific option mismatch
encode.c:   926 | _mm256_storeu_si256 (__m256i_u *__P, __m256i __A)
encode.c:       | ^~~~~~~~~~~~~~~~~~~
encode.c: encode.c:56:5: note: called from here
encode.c:    56 |     _mm256_storeu_si256((__m256i *) s,b0);
encode.c:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
encode.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/10/include/immintrin.h:53,
encode.c:                  from encode.c:1:
encode.c: /usr/lib/gcc/x86_64-linux-gnu/10/include/avx2intrin.h:105:1: error: inlining failed in call to 'always_inline' '_mm256_add_epi8': target specific option mismatch
encode.c:   105 | _mm256_add_epi8 (__m256i __A, __m256i __B)
encode.c:       | ^~~~~~~~~~~~~~~
encode.c: encode.c:54:10: note: called from here
encode.c:    54 |     b0 = _mm256_add_epi8(b0,_mm256_set1_epi8(85));
encode.c:       |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
encode.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/10/include/immintrin.h:51,
encode.c:                  from encode.c:1:
encode.c: /usr/lib/gcc/x86_64-linux-gnu/10/include/avxintrin.h:1333:1: error: inlining failed in call to 'always_inline' '_mm256_set1_epi8': target specific option mismatch
encode.c:  1333 | _mm256_set1_epi8 (char __A)
encode.c:       | ^~~~~~~~~~~~~~~~
encode.c: ...

Number of similar (implementation,compiler) pairs: 4, namely:
ImplementationCompiler
avxgcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
avxgcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
avxgcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
avxgcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)

Passed TIMECOP


TIMECOP iterations: 10

Number of similar (implementation,compiler) pairs: 9, namely:
ImplementationCompiler
refclang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refclang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refclang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refclang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refclang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)
refgcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
refgcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
refgcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)
refgcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)