Implementation notes: amd64, hydra7, crypto_decode/256x2

Computer: hydra7
Microarchitecture: amd64; Sandy Bridge+AES (206a7)
Architecture: amd64
CPU ID: GenuineIntel-000206a7-bfebfbff
SUPERCOP version: 20240425
Operation: crypto_decode
Primitive: 256x2

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
1098	127 0 0	10924 796 960	`ref`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20240426	20240425
1106	134 0 0	11237 804 960	`ref`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20240426	20240425
1115	134 0 0	12485 804 960	`ref`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20240426	20240425
1167	123 0 0	9912 780 928	`ref`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20240426	20240425

Compiler output

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

decode.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/11/include/immintrin.h:47,
decode.c: from decode.c:1:
decode.c: decode.c: In function 'crypto_decode_256x2_avx_constbranchindex':
decode.c: /usr/lib/gcc/x86_64-linux-gnu/11/include/avx2intrin.h:231:1: error: inlining failed in call to 'always_inline' '_mm256_cmpeq_epi8': target specific option mismatch
decode.c: 231 | _mm256_cmpeq_epi8 (__m256i __A, __m256i __B)
decode.c: | ^~~~~~~~~~~~~~~~~
decode.c: decode.c:21:9: note: called from here
decode.c: 21 | x = _mm256_cmpeq_epi8(x,_mm256_setzero_si256());
decode.c: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
decode.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/11/include/immintrin.h:47,
decode.c: from decode.c:1:
decode.c: /usr/lib/gcc/x86_64-linux-gnu/11/include/avx2intrin.h:186:1: error: inlining failed in call to 'always_inline' '_mm256_andnot_si256': target specific option mismatch
decode.c: 186 | _mm256_andnot_si256 (__m256i __A, __m256i __B)
decode.c: | ^~~~~~~~~~~~~~~~~~~
decode.c: decode.c:20:9: note: called from here
decode.c: 20 | x = _mm256_andnot_si256(x,MASK);
decode.c: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
decode.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/11/include/immintrin.h:47,
decode.c: from decode.c:1:
decode.c: /usr/lib/gcc/x86_64-linux-gnu/11/include/avx2intrin.h:588:1: error: inlining failed in call to 'always_inline' '_mm256_shuffle_epi8': target specific option mismatch
decode.c: 588 | _mm256_shuffle_epi8 (__m256i __X, __m256i __Y)
decode.c: | ^~~~~~~~~~~~~~~~~~~
decode.c: decode.c:18:9: note: called from here
decode.c: 18 | x = _mm256_shuffle_epi8(x,COPY);
decode.c: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
decode.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