Implementation notes: amd64, margaux, crypto_core/scale3sntrup761

Computer: margaux
Microarchitecture: amd64; C2 65nm (6fb)
Architecture: amd64
CPU ID: GenuineIntel-000006fb-bfebfbff
SUPERCOP version: 20221122
Operation: crypto_core
Primitive: scale3sntrup761

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
975	893 0 0	15140 804 912	`ref`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210530	20210529
984	893 0 0	13796 804 912	`ref`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210530	20210529
992	893 0 0	13796 804 912	`ref`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210530	20210529
994	920 0 0	14964 804 912	`ref`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210530	20210529
1059	391 0 0	15113 804 976	`ref`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210530	20210529
7424	172 0 0	11138 796 912	`ref`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210530	20210529
7639	228 0 0	12592 796 976	`ref`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210530	20210529
7664	226 0 0	12512 796 976	`ref`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210530	20210529
10049	224 0 0	11576 788 944	`ref`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210530	20210529

Compiler output

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

core.c: core.c:20:18: error: always_inline function '_mm256_loadu_si256' requires target feature 'xsave', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'xsave'
core.c: __m256i save = _mm256_loadu_si256((__m256i *) (inbytes+2*i));
core.c: ^
core.c: core.c:25:19: error: always_inline function '_mm256_loadu_si256' requires target feature 'xsave', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'xsave'
core.c: __m256i x = _mm256_loadu_si256((__m256i *) inbytes);
core.c: ^
core.c: core.c:27:11: error: always_inline function '_mm256_mullo_epi16' requires target feature 'xsave', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'xsave'
core.c: x = _mm256_mullo_epi16(x,_mm256_set1_epi16(3));
core.c: ^
core.c: core.c:27:32: error: always_inline function '_mm256_set1_epi16' requires target feature 'xsave', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'xsave'
core.c: x = _mm256_mullo_epi16(x,_mm256_set1_epi16(3));
core.c: ^
core.c: core.c:28:11: error: always_inline function '_mm256_sub_epi16' requires target feature 'xsave', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'xsave'
core.c: x = _mm256_sub_epi16(x,_mm256_set1_epi16((q+1)/2));
core.c: ^
core.c: core.c:28:30: error: always_inline function '_mm256_set1_epi16' requires target feature 'xsave', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'xsave'
core.c: x = _mm256_sub_epi16(x,_mm256_set1_epi16((q+1)/2));
core.c: ^
core.c: core.c:29:14: error: always_inline function '_mm256_srai_epi16' requires target feature 'xsave', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'xsave'
core.c: xneg = _mm256_srai_epi16(x,15);
core.c: ^
core.c: core.c:30:11: error: always_inline function '_mm256_add_epi16' requires target feature 'xsave', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'xsave'
core.c: x = _mm256_add_epi16(x,_mm256_set1_epi16(q)&xneg);
core.c: ^
core.c: core.c:30:30: error: always_inline function '_mm256_set1_epi16' requires target feature 'xsave', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'xsave'
core.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

core.c: core.c:20:18: error: always_inline function '_mm256_loadu_si256' requires target feature 'sse4.2', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'sse4.2'
core.c: __m256i save = _mm256_loadu_si256((__m256i *) (inbytes+2*i));
core.c: ^
core.c: core.c:25:19: error: always_inline function '_mm256_loadu_si256' requires target feature 'sse4.2', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'sse4.2'
core.c: __m256i x = _mm256_loadu_si256((__m256i *) inbytes);
core.c: ^
core.c: core.c:27:11: error: always_inline function '_mm256_mullo_epi16' requires target feature 'avx2', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'avx2'
core.c: x = _mm256_mullo_epi16(x,_mm256_set1_epi16(3));
core.c: ^
core.c: core.c:27:32: error: always_inline function '_mm256_set1_epi16' requires target feature 'sse4.2', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'sse4.2'
core.c: x = _mm256_mullo_epi16(x,_mm256_set1_epi16(3));
core.c: ^
core.c: core.c:28:11: error: always_inline function '_mm256_sub_epi16' requires target feature 'avx2', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'avx2'
core.c: x = _mm256_sub_epi16(x,_mm256_set1_epi16((q+1)/2));
core.c: ^
core.c: core.c:28:30: error: always_inline function '_mm256_set1_epi16' requires target feature 'sse4.2', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'sse4.2'
core.c: x = _mm256_sub_epi16(x,_mm256_set1_epi16((q+1)/2));
core.c: ^
core.c: core.c:29:14: error: always_inline function '_mm256_srai_epi16' requires target feature 'avx2', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'avx2'
core.c: xneg = _mm256_srai_epi16(x,15);
core.c: ^
core.c: core.c:30:11: error: always_inline function '_mm256_add_epi16' requires target feature 'avx2', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'avx2'
core.c: x = _mm256_add_epi16(x,_mm256_set1_epi16(q)&xneg);
core.c: ^
core.c: core.c:30:30: error: always_inline function '_mm256_set1_epi16' requires target feature 'sse4.2', but would be inlined into function 'crypto_core_scale3sntrup761_avx_constbranchindex' that is compiled without support for 'sse4.2'
core.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

core.c: core.c: In function 'crypto_core_scale3sntrup761_avx_constbranchindex':
core.c: core.c:20:11: warning: AVX vector return without AVX enabled changes the ABI [-Wpsabi]
core.c: __m256i save = _mm256_loadu_si256((__m256i *) (inbytes+2*i));
core.c: ^~~~
core.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/7/include/immintrin.h:41:0,
core.c: from core.c:1:
core.c: /usr/lib/gcc/x86_64-linux-gnu/7/include/avxintrin.h:920:1: error: inlining failed in call to always_inline '_mm256_loadu_si256': target specific option mismatch
core.c: _mm256_loadu_si256 (__m256i_u const *__P)
core.c: ^~~~~~~~~~~~~~~~~~
core.c: core.c:20:11: note: called from here
core.c: __m256i save = _mm256_loadu_si256((__m256i *) (inbytes+2*i));
core.c: ^~~~
core.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/7/include/immintrin.h:41:0,
core.c: from core.c:1:
core.c: /usr/lib/gcc/x86_64-linux-gnu/7/include/avxintrin.h:926:1: error: inlining failed in call to always_inline '_mm256_storeu_si256': target specific option mismatch
core.c: _mm256_storeu_si256 (__m256i_u *__P, __m256i __A)
core.c: ^~~~~~~~~~~~~~~~~~~
core.c: core.c:34:7: note: called from here
core.c: _mm256_storeu_si256((__m256i *) outbytes,x);
core.c: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
core.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/7/include/immintrin.h:43:0,
core.c: from core.c:1:
core.c: /usr/lib/gcc/x86_64-linux-gnu/7/include/avx2intrin.h:808:1: error: inlining failed in call to always_inline '_mm256_sub_epi16': target specific option mismatch
core.c: _mm256_sub_epi16 (__m256i __A, __m256i __B)
core.c: ^~~~~~~~~~~~~~~~
core.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