Implementation notes: amd64, gcc123, crypto_encode/256x2

Computer: gcc123
Architecture: amd64
CPU ID: GenuineIntel-000206d7-bfebfbff
SUPERCOP version: 20220213
Operation: crypto_encode
Primitive: 256x2

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
1298	134 0 0	13050 812 880	`ref`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210114	20210114
1308	134 0 0	13394 812 912	`ref`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210114	20210114
1311	134 0 0	13394 812 912	`ref`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210114	20210114
1316	134 0 0	15090 812 912	`ref`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210114	20210114
1349	102 0 0	9816 804 880	`ref`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210114	20210114
1353	105 0 0	11991 828 912	`ref`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210114	20210114
1399	121 0 0	10454 820 912	`ref`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210114	20210114
1430	113 0 0	10318 820 912	`ref`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210114	20210114
1492	104 0 0	9362 804 912	`ref`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210114	20210114

Compiler output

Implementation: avx
Security model: constbranchindex
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

encode.c: encode.c:17:16: error: always_inline function '_mm256_cmpgt_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx2'
encode.c: __m256i b0 = _mm256_cmpgt_epi8(a0&bottom,zero);
encode.c: ^
encode.c: encode.c:18:16: error: always_inline function '_mm256_cmpgt_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx2'
encode.c: __m256i b1 = _mm256_cmpgt_epi8(a1&bottom,zero);
encode.c: ^
encode.c: encode.c:19:16: error: always_inline function '_mm256_cmpgt_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx2'
encode.c: __m256i b2 = _mm256_cmpgt_epi8(a2&bottom,zero);
encode.c: ^
encode.c: encode.c:20:16: error: always_inline function '_mm256_cmpgt_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx2'
encode.c: __m256i b3 = _mm256_cmpgt_epi8(a3&bottom,zero);
encode.c: ^
encode.c: encode.c:21:16: error: always_inline function '_mm256_cmpgt_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx2'
encode.c: __m256i b4 = _mm256_cmpgt_epi8(a4&bottom,zero);
encode.c: ^
encode.c: encode.c:22:16: error: always_inline function '_mm256_cmpgt_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx2'
encode.c: __m256i b5 = _mm256_cmpgt_epi8(a5&bottom,zero);
encode.c: ^
encode.c: encode.c:23:16: error: always_inline function '_mm256_cmpgt_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx2'
encode.c: __m256i b6 = _mm256_cmpgt_epi8(a6&bottom,zero);
encode.c: ^
encode.c: encode.c:24:16: error: always_inline function '_mm256_cmpgt_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx2'
encode.c: __m256i b7 = _mm256_cmpgt_epi8(a7&bottom,zero);
encode.c: ^
encode.c: encode.c:25:16: error: always_inline function '_mm256_movemask_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx2'
encode.c: ...

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

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	avx
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	avx
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	avx
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	avx

Compiler output

Implementation: avx
Security model: constbranchindex
Compiler: clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

encode.c: encode.c:7:16: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx'
encode.c: __m256i a0 = _mm256_loadu_si256(0+(__m256i *) v);
encode.c: ^
encode.c: encode.c:8:16: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx'
encode.c: __m256i a1 = _mm256_loadu_si256(1+(__m256i *) v);
encode.c: ^
encode.c: encode.c:9:16: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx'
encode.c: __m256i a2 = _mm256_loadu_si256(2+(__m256i *) v);
encode.c: ^
encode.c: encode.c:10:16: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx'
encode.c: __m256i a3 = _mm256_loadu_si256(3+(__m256i *) v);
encode.c: ^
encode.c: encode.c:11:16: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx'
encode.c: __m256i a4 = _mm256_loadu_si256(4+(__m256i *) v);
encode.c: ^
encode.c: encode.c:12:16: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx'
encode.c: __m256i a5 = _mm256_loadu_si256(5+(__m256i *) v);
encode.c: ^
encode.c: encode.c:13:16: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx'
encode.c: __m256i a6 = _mm256_loadu_si256(6+(__m256i *) v);
encode.c: ^
encode.c: encode.c:14:16: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx'
encode.c: __m256i a7 = _mm256_loadu_si256(7+(__m256i *) v);
encode.c: ^
encode.c: encode.c:15:20: error: always_inline function '_mm256_set1_epi8' requires target feature 'avx', but would be inlined into function 'crypto_encode_256x2_avx_constbranchindex' that is compiled without support for 'avx'
encode.c: ...

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

Compiler	Implementations
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	avx

Compiler output

Implementation: avx
Security model: constbranchindex
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

encode.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/8/include/immintrin.h:43,
encode.c: from encode.c:1:
encode.c: encode.c: In function 'crypto_encode_256x2_avx_constbranchindex':
encode.c: /usr/lib/gcc/x86_64-linux-gnu/8/include/avx2intrin.h:433:1: error: inlining failed in call to always_inline '_mm256_movemask_epi8': target specific option mismatch
encode.c: _mm256_movemask_epi8 (__m256i __A)
encode.c: ^~~~~~~~~~~~~~~~~~~~
encode.c: encode.c:32:16: note: called from here
encode.c: int32_t c7 = _mm256_movemask_epi8(b7);
encode.c: ^~~~~~~~~~~~~~~~~~~~~~~~
encode.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/8/include/immintrin.h:43,
encode.c: from encode.c:1:
encode.c: /usr/lib/gcc/x86_64-linux-gnu/8/include/avx2intrin.h:433:1: error: inlining failed in call to always_inline '_mm256_movemask_epi8': target specific option mismatch
encode.c: _mm256_movemask_epi8 (__m256i __A)
encode.c: ^~~~~~~~~~~~~~~~~~~~
encode.c: encode.c:31:16: note: called from here
encode.c: int32_t c6 = _mm256_movemask_epi8(b6);
encode.c: ^~~~~~~~~~~~~~~~~~~~~~~~
encode.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/8/include/immintrin.h:43,
encode.c: from encode.c:1:
encode.c: /usr/lib/gcc/x86_64-linux-gnu/8/include/avx2intrin.h:433:1: error: inlining failed in call to always_inline '_mm256_movemask_epi8': target specific option mismatch
encode.c: _mm256_movemask_epi8 (__m256i __A)
encode.c: ^~~~~~~~~~~~~~~~~~~~
encode.c: encode.c:30:16: note: called from here
encode.c: int32_t c5 = _mm256_movemask_epi8(b5);
encode.c: ^~~~~~~~~~~~~~~~~~~~~~~~
encode.c: ...

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

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