Implementation notes: amd64, hydra4, crypto_kem/lac256

Computer: hydra4
Microarchitecture: amd64; K10 32nm (300f10)
Architecture: amd64
CPU ID: AuthenticAMD-00300f10-178bfbff
SUPERCOP version: 20240716
Operation: crypto_kem
Primitive: lac256

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
3020418	24543 77992 1100	40309 78892 2776	`T:opt`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
3021140	29099 77992 1100	45053 78892 2776	`T:opt`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
3021464	29275 77992 1100	45245 78892 2776	`T:opt`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
3299982	17252 77992 1100	31835 78884 2776	`T:opt`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
4230023	19614 77992 1100	34771 78884 2776	`T:opt`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
4266551	19246 78016 1116	34010 78900 2840	`T:opt`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
4290233	27395 78016 1116	43514 78900 2840	`T:opt`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
4818216	14821 78016 1116	29498 78892 2808	`T:opt`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
15233913	16449 0 60	31003 884 1720	`T:ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
16248932	27982 0 60	43933 892 1720	`T:ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
16663939	27806 0 60	43741 892 1720	`T:ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
17314722	23522 0 60	39253 892 1720	`T:ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
32152878	18392 0 60	33563 884 1720	`T:ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
32823143	19326 0 60	34778 876 1784	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
33368263	18155 0 60	32714 876 1784	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
37994202	13844 0 60	28338 868 1752	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625
91430909	27472 0 60	43354 876 1784	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240708	20240625

Checksum failure

26c27ad8a75f280cab6a5227338dd1d1e63d765892d6226a2b0f03e979521ab3

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

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

Compiler output

bin-lwe.c: bin-lwe.c:91:10: error: always_inline function '_mm256_set_epi16' requires target feature 'avx', but would be inlined into function 'poly_mul' that is compiled without support for 'avx'
bin-lwe.c:         tmp_one=_mm256_set_epi16(1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1);
bin-lwe.c:                 ^
bin-lwe.c: bin-lwe.c:91:10: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
bin-lwe.c: bin-lwe.c:103:9: error: always_inline function '_mm256_setzero_si256' requires target feature 'avx', but would be inlined into function 'poly_mul' that is compiled without support for 'avx'
bin-lwe.c:                 tmp2 =_mm256_setzero_si256();
bin-lwe.c:                       ^
bin-lwe.c: bin-lwe.c:103:9: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
bin-lwe.c: bin-lwe.c:106:11: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'poly_mul' that is compiled without support for 'avx'
bin-lwe.c:                         tmp0 = _mm256_loadu_si256((__m256i *)(v_p+j));
bin-lwe.c:                                ^
bin-lwe.c: bin-lwe.c:106:11: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
bin-lwe.c: bin-lwe.c:107:11: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'poly_mul' that is compiled without support for 'avx'
bin-lwe.c:                         tmp1 = _mm256_loadu_si256((__m256i *)(s+j));
bin-lwe.c:                                ^
bin-lwe.c: bin-lwe.c:107:11: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
bin-lwe.c: bin-lwe.c:108:11: error: always_inline function '_mm256_maddubs_epi16' requires target feature 'avx2', but would be inlined into function 'poly_mul' that is compiled without support for 'avx2'
bin-lwe.c:                         tmp0 = _mm256_maddubs_epi16(tmp0, tmp1);
bin-lwe.c:                                ^
bin-lwe.c: bin-lwe.c:108:11: error: AVX vector argument of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
bin-lwe.c: bin-lwe.c:109:11: error: always_inline function '_mm256_add_epi16' requires target feature 'avx2', but would be inlined into function 'poly_mul' that is compiled without support for 'avx2'
bin-lwe.c:                         tmp2 = _mm256_add_epi16(tmp2, tmp0);
bin-lwe.c:                                ^
bin-lwe.c: bin-lwe.c:109:11: error: AVX vector argument of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
bin-lwe.c: bin-lwe.c:111:11: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'poly_mul' that is compiled without support for 'avx'
bin-lwe.c: ...

Number of similar (implementation,compiler) pairs: 5, 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)`
`T:avx2`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

bin-lwe.c: bin-lwe.c: In function 'poly_mul':
bin-lwe.c: bin-lwe.c:91:9: warning: AVX vector return without AVX enabled changes the ABI [-Wpsabi]
bin-lwe.c:    91 |  tmp_one=_mm256_set_epi16(1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1);
bin-lwe.c:       |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bin-lwe.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/10/include/immintrin.h:51,
bin-lwe.c:                  from bin-lwe.c:1:
bin-lwe.c: /usr/lib/gcc/x86_64-linux-gnu/10/include/avxintrin.h:1266:1: error: inlining failed in call to 'always_inline' '_mm256_set_epi16': target specific option mismatch
bin-lwe.c:  1266 | _mm256_set_epi16 (short __q15, short __q14, short __q13, short __q12,
bin-lwe.c:       | ^~~~~~~~~~~~~~~~
bin-lwe.c: bin-lwe.c:91:10: note: called from here
bin-lwe.c:    91 |  tmp_one=_mm256_set_epi16(1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1);
bin-lwe.c:       |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bin-lwe.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/10/include/immintrin.h:51,
bin-lwe.c:                  from bin-lwe.c:1:
bin-lwe.c: /usr/lib/gcc/x86_64-linux-gnu/10/include/avxintrin.h:1235:1: error: inlining failed in call to 'always_inline' '_mm256_setzero_si256': target specific option mismatch
bin-lwe.c:  1235 | _mm256_setzero_si256 (void)
bin-lwe.c:       | ^~~~~~~~~~~~~~~~~~~~
bin-lwe.c: bin-lwe.c:103:9: note: called from here
bin-lwe.c:   103 |   tmp2 =_mm256_setzero_si256();
bin-lwe.c:       |         ^~~~~~~~~~~~~~~~~~~~~~
bin-lwe.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/10/include/immintrin.h:53,
bin-lwe.c:                  from bin-lwe.c:1:
bin-lwe.c: /usr/lib/gcc/x86_64-linux-gnu/10/include/avx2intrin.h:112:1: error: inlining failed in call to 'always_inline' '_mm256_add_epi16': target specific option mismatch
bin-lwe.c:   112 | _mm256_add_epi16 (__m256i __A, __m256i __B)
bin-lwe.c:       | ^~~~~~~~~~~~~~~~
bin-lwe.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)`