Implementation notes: amd64, cherry, crypto_kem/ntskem1380

Computer: cherry
Microarchitecture: amd64; Silvermont (406c4)
Architecture: amd64
CPU ID: GenuineIntel-000406c4-bfebfbff
SUPERCOP version: 20240625
Operation: crypto_kem
Primitive: ntskem1380

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
3018556	122364 84 16	141098 948 1720	`T:sse2`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
3102471	93570 84 16	110698 948 1720	`T:sse2`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
3233083	95340 84 16	113802 932 1784	`T:sse2`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
3341388	91361 84 16	107808 940 1720	`T:sse2`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
3373328	80622 84 16	97898 932 1784	`T:sse2`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
3667788	109452 84 16	129682 948 1720	`T:opt`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
3805194	69816 84 16	85345 924 1752	`T:sse2`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
3956707	77079 84 16	92768 940 1720	`T:sse2`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
4014858	78573 84 16	95330 932 1784	`T:sse2`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
4160030	133713 84 16	153450 948 1720	`T:opt`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
4394582	69378 84 16	87722 932 1784	`T:opt`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
4450046	85144 84 16	103104 940 1720	`T:opt`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
4522989	88236 84 16	108290 932 1784	`T:opt`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
4651738	63026 84 16	79969 924 1752	`T:opt`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
4856353	70733 84 16	87936 940 1720	`T:opt`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
5286650	71689 84 16	90642 932 1784	`T:opt`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
5677024	90522 84 16	109122 948 1720	`T:opt`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
28529730	34828 76 16	53610 932 1720	`T:ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
28572964	36417 76 16	56850 932 1720	`T:ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
31665666	43316 76 16	63370 932 1720	`T:ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
32660138	22155 76 16	39376 924 1720	`T:ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
33946272	36562 76 16	56546 900 1784	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
36396716	27133 76 16	46066 900 1784	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
36625047	24204 76 16	42570 900 1784	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
36751538	24425 76 16	42376 924 1720	`T:ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625
36928584	19927 76 16	36825 892 1752	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240709	20240625

Compiler output

bitslice_fft_256.c: bitslice_fft_256.c:99:25: error: always_inline function '_mm256_set_epi64x' requires target feature 'avx', but would be inlined into function 'bitslice_butterflies13_256' that is compiled without support for 'avx'
bitslice_fft_256.c:             out[j][i] = _mm256_set_epi64x(-v3, -v2, -v1, -v0);
bitslice_fft_256.c:                         ^
bitslice_fft_256.c: bitslice_fft_256.c:99:25: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
bitslice_fft_256.c: bitslice_fft_256.c:112:20: error: '__builtin_ia32_permdi256' needs target feature avx2
bitslice_fft_256.c:             t[0] = _mm256_permute4x64_epi64(out[ j ][b], 0xD8);
bitslice_fft_256.c:                    ^
bitslice_fft_256.c: /usr/lib/llvm-11/lib/clang/11.0.1/include/avx2intrin.h:818:12: note: expanded from macro '_mm256_permute4x64_epi64'
bitslice_fft_256.c:   (__m256i)__builtin_ia32_permdi256((__v4di)(__m256i)(V), (int)(M))
bitslice_fft_256.c:            ^
bitslice_fft_256.c: bitslice_fft_256.c:113:20: error: '__builtin_ia32_permdi256' needs target feature avx2
bitslice_fft_256.c:             t[1] = _mm256_permute4x64_epi64(out[j+1][b], 0xD8);
bitslice_fft_256.c:                    ^
bitslice_fft_256.c: /usr/lib/llvm-11/lib/clang/11.0.1/include/avx2intrin.h:818:12: note: expanded from macro '_mm256_permute4x64_epi64'
bitslice_fft_256.c:   (__m256i)__builtin_ia32_permdi256((__v4di)(__m256i)(V), (int)(M))
bitslice_fft_256.c:            ^
bitslice_fft_256.c: bitslice_fft_256.c:114:20: error: '__builtin_ia32_permti256' needs target feature avx2
bitslice_fft_256.c:             v[b] = _mm256_permute2x128_si256(t[0], t[1], 0x20);
bitslice_fft_256.c:                    ^
bitslice_fft_256.c: /usr/lib/llvm-11/lib/clang/11.0.1/include/avx2intrin.h:821:12: note: expanded from macro '_mm256_permute2x128_si256'
bitslice_fft_256.c:   (__m256i)__builtin_ia32_permti256((__m256i)(V1), (__m256i)(V2), (int)(M))
bitslice_fft_256.c:            ^
bitslice_fft_256.c: bitslice_fft_256.c:115:20: error: '__builtin_ia32_permti256' needs target feature avx2
bitslice_fft_256.c:             u[b] = _mm256_permute2x128_si256(t[0], t[1], 0x31);
bitslice_fft_256.c:                    ^
bitslice_fft_256.c: ...

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

Implementation	Compiler
`T:avx2`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:avx2`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:avx2`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:avx2`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

bitslice_bma_128.c: bitslice_bma_128.c:92:12: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'bit_reverse' that is compiled without support for 'ssse3'
bitslice_bma_128.c:     return _mm_shuffle_epi8(x, _mm_set_epi8(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15));
bitslice_bma_128.c:            ^
bitslice_bma_128.c: 1 error generated.

Number of similar (implementation,compiler) pairs: 2, namely:

Implementation	Compiler
`T:avx2`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:sse2`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

bitslice_fft_256.c: bitslice_fft_256.c: In function 'bitslice_butterflies13_256':
bitslice_fft_256.c: bitslice_fft_256.c:99:23: warning: AVX vector return without AVX enabled changes the ABI [-Wpsabi]
bitslice_fft_256.c:    99 |             out[j][i] = _mm256_set_epi64x(-v3, -v2, -v1, -v0);
bitslice_fft_256.c:       |             ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bitslice_fft_256.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/10/include/immintrin.h:51,
bitslice_fft_256.c:                  from bitslice_fft_256.h:21,
bitslice_fft_256.c:                  from bitslice_fft_256.c:18:
bitslice_fft_256.c: /usr/lib/gcc/x86_64-linux-gnu/10/include/avxintrin.h:1296:1: error: inlining failed in call to 'always_inline' '_mm256_set_epi64x': target specific option mismatch
bitslice_fft_256.c:  1296 | _mm256_set_epi64x (long long __A, long long __B, long long __C,
bitslice_fft_256.c:       | ^~~~~~~~~~~~~~~~~
bitslice_fft_256.c: bitslice_fft_256.c:99:25: note: called from here
bitslice_fft_256.c:    99 |             out[j][i] = _mm256_set_epi64x(-v3, -v2, -v1, -v0);
bitslice_fft_256.c:       |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bitslice_fft_256.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/10/include/immintrin.h:53,
bitslice_fft_256.c:                  from bitslice_fft_256.h:21,
bitslice_fft_256.c:                  from bitslice_fft_256.c:18:
bitslice_fft_256.c: /usr/lib/gcc/x86_64-linux-gnu/10/include/avx2intrin.h:1081:1: error: inlining failed in call to 'always_inline' '_mm256_permute2x128_si256': target specific option mismatch
bitslice_fft_256.c:  1081 | _mm256_permute2x128_si256 (__m256i __X, __m256i __Y, const int __M)
bitslice_fft_256.c:       | ^~~~~~~~~~~~~~~~~~~~~~~~~
bitslice_fft_256.c: bitslice_fft_256.c:115:20: note: called from here
bitslice_fft_256.c:   115 |             u[b] = _mm256_permute2x128_si256(t[0], t[1], 0x31);
bitslice_fft_256.c:       |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bitslice_fft_256.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/10/include/immintrin.h:53,
bitslice_fft_256.c:                  from bitslice_fft_256.h:21,
bitslice_fft_256.c:                  from bitslice_fft_256.c:18:
bitslice_fft_256.c: ...

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

Implementation	Compiler
`T:avx2`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:avx2`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:avx2`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:avx2`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`