Implementation notes: amd64, gcc123, crypto_sign/dilithium2

Computer: gcc123
Architecture: amd64
CPU ID: GenuineIntel-000206d7-bfebfbff
SUPERCOP version: 20220213
Operation: crypto_sign
Primitive: dilithium2

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
2124119	36320 0 0	58810 820 1736	`ref`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210208	20210125
2164831	35888 0 0	56194 820 1736	`ref`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210208	20210125
2212484	36390 0 0	55967 836 1768	`ref`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210208	20210125
2289139	28164 0 0	48970 820 1736	`ref`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210208	20210125
2290248	28164 0 0	48970 820 1736	`ref`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210208	20210125
2391061	19376 0 0	36456 812 1736	`ref`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210208	20210125
2431245	19945 0 0	38191 836 1768	`ref`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210208	20210125
2588564	17684 0 0	34559 828 1736	`ref`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210208	20210125
2610840	19075 0 0	37055 836 1768	`ref`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210208	20210125

Compiler output

Implementation: avx2
Security model: constbranchindex
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

fips202x4.c: fips202x4.c:27:11: error: '__builtin_ia32_gatherq_q256' needs target feature avx2
fips202x4.c: t = _mm256_i64gather_epi64((long long *)pos, idx, 1);
fips202x4.c: ^
fips202x4.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/avx2intrin.h:1160:12: note: expanded from macro '_mm256_i64gather_epi64'
fips202x4.c: (__m256i)__builtin_ia32_gatherq_q256((__v4di)_mm256_undefined_si256(), \
fips202x4.c: ^
fips202x4.c: fips202x4.c:28:14: error: always_inline function '_mm256_xor_si256' requires target feature 'avx2', but would be inlined into function 'keccakx4_absorb_once' that is compiled without support for 'avx2'
fips202x4.c: s[i] = _mm256_xor_si256(s[i], t);
fips202x4.c: ^
fips202x4.c: fips202x4.c:37:9: error: '__builtin_ia32_gatherq_q256' needs target feature avx2
fips202x4.c: t = _mm256_i64gather_epi64((long long *)pos, idx, 1);
fips202x4.c: ^
fips202x4.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/avx2intrin.h:1160:12: note: expanded from macro '_mm256_i64gather_epi64'
fips202x4.c: (__m256i)__builtin_ia32_gatherq_q256((__v4di)_mm256_undefined_si256(), \
fips202x4.c: ^
fips202x4.c: fips202x4.c:38:12: error: always_inline function '_mm256_xor_si256' requires target feature 'avx2', but would be inlined into function 'keccakx4_absorb_once' that is compiled without support for 'avx2'
fips202x4.c: s[i] = _mm256_xor_si256(s[i], t);
fips202x4.c: ^
fips202x4.c: fips202x4.c:44:9: error: '__builtin_ia32_gatherq_q256' needs target feature avx2
fips202x4.c: t = _mm256_i64gather_epi64((long long *)pos, idx, 1);
fips202x4.c: ^
fips202x4.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/avx2intrin.h:1160:12: note: expanded from macro '_mm256_i64gather_epi64'
fips202x4.c: (__m256i)__builtin_ia32_gatherq_q256((__v4di)_mm256_undefined_si256(), \
fips202x4.c: ^
fips202x4.c: fips202x4.c:46:9: error: always_inline function '_mm256_and_si256' requires target feature 'avx2', but would be inlined into function 'keccakx4_absorb_once' that is compiled without support for 'avx2'
fips202x4.c: ...

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

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	avx2
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	avx2
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	avx2
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	avx2

Compiler output

Implementation: avx2
Security model: constbranchindex
Compiler: clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

fips202x4.c: fips202x4.c:22:12: error: always_inline function '_mm256_setzero_si256' requires target feature 'avx', but would be inlined into function 'keccakx4_absorb_once' that is compiled without support for 'avx'
fips202x4.c: s[i] = _mm256_setzero_si256();
fips202x4.c: ^
fips202x4.c: fips202x4.c:24:9: error: always_inline function '_mm256_set_epi64x' requires target feature 'avx', but would be inlined into function 'keccakx4_absorb_once' that is compiled without support for 'avx'
fips202x4.c: idx = _mm256_set_epi64x((long long)in3, (long long)in2, (long long)in1, (long long)in0);
fips202x4.c: ^
fips202x4.c: fips202x4.c:27:11: error: '__builtin_ia32_gatherq_q256' needs target feature avx2
fips202x4.c: t = _mm256_i64gather_epi64((long long *)pos, idx, 1);
fips202x4.c: ^
fips202x4.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/avx2intrin.h:1160:12: note: expanded from macro '_mm256_i64gather_epi64'
fips202x4.c: (__m256i)__builtin_ia32_gatherq_q256((__v4di)_mm256_undefined_si256(), \
fips202x4.c: ^
fips202x4.c: fips202x4.c:27:11: error: always_inline function '_mm256_undefined_si256' requires target feature 'avx', but would be inlined into function 'keccakx4_absorb_once' that is compiled without support for 'avx'
fips202x4.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/avx2intrin.h:1160:48: note: expanded from macro '_mm256_i64gather_epi64'
fips202x4.c: (__m256i)__builtin_ia32_gatherq_q256((__v4di)_mm256_undefined_si256(), \
fips202x4.c: ^
fips202x4.c: fips202x4.c:27:11: error: always_inline function '_mm256_set1_epi64x' requires target feature 'avx', but would be inlined into function 'keccakx4_absorb_once' that is compiled without support for 'avx'
fips202x4.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/avx2intrin.h:1163:48: note: expanded from macro '_mm256_i64gather_epi64'
fips202x4.c: (__v4di)_mm256_set1_epi64x(-1), (s))
fips202x4.c: ^
fips202x4.c: fips202x4.c:28:14: error: always_inline function '_mm256_xor_si256' requires target feature 'avx2', but would be inlined into function 'keccakx4_absorb_once' that is compiled without support for 'avx2'
fips202x4.c: s[i] = _mm256_xor_si256(s[i], t);
fips202x4.c: ^
fips202x4.c: fips202x4.c:37:9: error: '__builtin_ia32_gatherq_q256' needs target feature avx2
fips202x4.c: t = _mm256_i64gather_epi64((long long *)pos, idx, 1);
fips202x4.c: ...

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

Compiler	Implementations
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	avx2

Compiler output

Implementation: avx2
Security model: constbranchindex
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

fips202x4.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/8/include/immintrin.h:43,
fips202x4.c: from fips202x4.c:3:
fips202x4.c: fips202x4.c: In function 'keccakx4_absorb_once':
fips202x4.c: /usr/lib/gcc/x86_64-linux-gnu/8/include/avx2intrin.h:913:1: error: inlining failed in call to always_inline '_mm256_xor_si256': target specific option mismatch
fips202x4.c: _mm256_xor_si256 (__m256i __A, __m256i __B)
fips202x4.c: ^~~~~~~~~~~~~~~~
fips202x4.c: fips202x4.c:28:14: note: called from here
fips202x4.c: s[i] = _mm256_xor_si256(s[i], t);
fips202x4.c: ^~~~~~~~~~~~~~~~~~~~~~~~~
fips202x4.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/8/include/immintrin.h:43,
fips202x4.c: from fips202x4.c:3:
fips202x4.c: /usr/lib/gcc/x86_64-linux-gnu/8/include/avx2intrin.h:1539:1: error: inlining failed in call to always_inline '_mm256_i64gather_epi64': target specific option mismatch
fips202x4.c: _mm256_i64gather_epi64 (long long int const *__base,
fips202x4.c: ^~~~~~~~~~~~~~~~~~~~~~
fips202x4.c: fips202x4.c:27:11: note: called from here
fips202x4.c: t = _mm256_i64gather_epi64((long long *)pos, idx, 1);
fips202x4.c: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fips202x4.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/8/include/immintrin.h:43,
fips202x4.c: from fips202x4.c:3:
fips202x4.c: /usr/lib/gcc/x86_64-linux-gnu/8/include/avx2intrin.h:913:1: error: inlining failed in call to always_inline '_mm256_xor_si256': target specific option mismatch
fips202x4.c: _mm256_xor_si256 (__m256i __A, __m256i __B)
fips202x4.c: ^~~~~~~~~~~~~~~~
fips202x4.c: fips202x4.c:38:12: note: called from here
fips202x4.c: s[i] = _mm256_xor_si256(s[i], t);
fips202x4.c: ^~~~~~~~~~~~~~~~~~~~~~~~~
fips202x4.c: ...

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	avx2
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	avx2
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	avx2
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	avx2