Implementation notes: amd64, saber214, crypto_decode/953x3

Computer: saber214
Microarchitecture: amd64; Bulldozer (600f20)
Architecture: amd64
CPU ID: AuthenticAMD-00600f20-1789c3f5
SUPERCOP version: 20240625
Operation: crypto_decode
Primitive: 953x3

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
344	2365 0 0	14292 816 728	`ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
389	1937 0 0	15156 816 744	`ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
424	499 0 0	11324 816 728	`ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
1176	1733 0 0	13694 776 800	`ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
2082	184 0 0	10678 776 800	`ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
2181	137 0 0	9700 816 728	`ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
2279	180 0 0	10445 768 800	`ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
2314	173 0 0	9449 752 768	`ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
2893	132 0 0	9294 808 728	`ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625

Compiler output

decode.c: decode.c:22:18: error: always_inline function '_mm256_srli_epi16' requires target feature 'avx2', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx2'
decode.c:     __m256i s1 = _mm256_srli_epi16(s0&_mm256_set1_epi8(-16),4);
decode.c:                  ^
decode.c: decode.c:25:18: error: always_inline function '_mm256_unpacklo_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx2'
decode.c:     __m256i a0 = _mm256_unpacklo_epi8(s0,s1);
decode.c:                  ^
decode.c: decode.c:28:18: error: always_inline function '_mm256_unpackhi_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx2'
decode.c:     __m256i a1 = _mm256_unpackhi_epi8(s0,s1);
decode.c:                  ^
decode.c: decode.c:32:18: error: always_inline function '_mm256_srli_epi16' requires target feature 'avx2', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx2'
decode.c:     __m256i a2 = _mm256_srli_epi16(a0&_mm256_set1_epi8(12),2);
decode.c:                  ^
decode.c: decode.c:33:18: error: always_inline function '_mm256_srli_epi16' requires target feature 'avx2', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx2'
decode.c:     __m256i a3 = _mm256_srli_epi16(a1&_mm256_set1_epi8(12),2);
decode.c:                  ^
decode.c: decode.c:37:18: error: always_inline function '_mm256_unpacklo_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx2'
decode.c:     __m256i b0 = _mm256_unpacklo_epi8(a0,a2);
decode.c:                  ^
decode.c: decode.c:41:18: error: always_inline function '_mm256_unpackhi_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx2'
decode.c:     __m256i b2 = _mm256_unpackhi_epi8(a0,a2);
decode.c:                  ^
decode.c: decode.c:43:18: error: always_inline function '_mm256_unpacklo_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx2'
decode.c:     __m256i b1 = _mm256_unpacklo_epi8(a1,a3);
decode.c:                  ^
decode.c: decode.c:45:18: error: always_inline function '_mm256_unpackhi_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx2'
decode.c: ...

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

Implementation	Compiler
`avx`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`avx`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`avx`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`avx`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`

Compiler output

decode.c: decode.c:18:18: error: always_inline function '_mm256_loadu_si256' requires target feature 'avx', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx'
decode.c:     __m256i s0 = _mm256_loadu_si256((const __m256i *) s);
decode.c:                  ^
decode.c: decode.c:18:18: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
decode.c: decode.c:22:39: error: always_inline function '_mm256_set1_epi8' requires target feature 'avx', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx'
decode.c:     __m256i s1 = _mm256_srli_epi16(s0&_mm256_set1_epi8(-16),4);
decode.c:                                       ^
decode.c: decode.c:22:39: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
decode.c: decode.c:22:18: error: always_inline function '_mm256_srli_epi16' requires target feature 'avx2', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx2'
decode.c:     __m256i s1 = _mm256_srli_epi16(s0&_mm256_set1_epi8(-16),4);
decode.c:                  ^
decode.c: decode.c:22:18: error: AVX vector argument of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
decode.c: decode.c:23:11: error: always_inline function '_mm256_set1_epi8' requires target feature 'avx', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx'
decode.c:     s0 &= _mm256_set1_epi8(15);
decode.c:           ^
decode.c: decode.c:23:11: error: AVX vector return of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
decode.c: decode.c:25:18: error: always_inline function '_mm256_unpacklo_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx2'
decode.c:     __m256i a0 = _mm256_unpacklo_epi8(s0,s1);
decode.c:                  ^
decode.c: decode.c:25:18: error: AVX vector argument of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
decode.c: decode.c:28:18: error: always_inline function '_mm256_unpackhi_epi8' requires target feature 'avx2', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx2'
decode.c:     __m256i a1 = _mm256_unpackhi_epi8(s0,s1);
decode.c:                  ^
decode.c: decode.c:28:18: error: AVX vector argument of type '__m256i' (vector of 4 'long long' values) without 'avx' enabled changes the ABI
decode.c: decode.c:32:39: error: always_inline function '_mm256_set1_epi8' requires target feature 'avx', but would be inlined into function 'crypto_decode_953x3_avx_constbranchindex' that is compiled without support for 'avx'
decode.c: ...

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

Implementation	Compiler
`avx`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`

Compiler output

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_953x3_avx_constbranchindex':
decode.c: /usr/lib/gcc/x86_64-linux-gnu/11/include/avx2intrin.h:105:1: error: inlining failed in call to 'always_inline' '_mm256_add_epi8': target specific option mismatch
decode.c:   105 | _mm256_add_epi8 (__m256i __A, __m256i __B)
decode.c:       | ^~~~~~~~~~~~~~~
decode.c: decode.c:56:10: note: called from here
decode.c:    56 |     f3 = _mm256_add_epi8(f3,_mm256_set1_epi8(-1));
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:105:1: error: inlining failed in call to 'always_inline' '_mm256_add_epi8': target specific option mismatch
decode.c:   105 | _mm256_add_epi8 (__m256i __A, __m256i __B)
decode.c:       | ^~~~~~~~~~~~~~~
decode.c: decode.c:55:10: note: called from here
decode.c:    55 |     f2 = _mm256_add_epi8(f2,_mm256_set1_epi8(-1));
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:105:1: error: inlining failed in call to 'always_inline' '_mm256_add_epi8': target specific option mismatch
decode.c:   105 | _mm256_add_epi8 (__m256i __A, __m256i __B)
decode.c:       | ^~~~~~~~~~~~~~~
decode.c: decode.c:54:10: note: called from here
decode.c:    54 |     f1 = _mm256_add_epi8(f1,_mm256_set1_epi8(-1));
decode.c:       |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
decode.c: ...

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

Implementation	Compiler
`avx`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`avx`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`avx`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`avx`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`

TIMECOP error (can be valgrind bug)

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x10A565
   at 0x...: crypto_decode_953x3_ref_constbranchindex (decode.c:15)
   by 0x...: test (try.c:99)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`ref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`

TIMECOP error (can be valgrind bug)

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x10A5EF
   at 0x...: crypto_decode_953x3_ref_constbranchindex (decode.c:16)
   by 0x...: test (try.c:99)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`

TIMECOP error (can be valgrind bug)

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x109C3D
   at 0x...: salsa20.part.0 (try-anything.c:102)
   by 0x...: salsa20 (try-anything.c:85)
   by 0x...: testvector (try-anything.c:124)
   by 0x...: input_prepare (try-anything.c:162)
   by 0x...: test (try.c:95)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`

TIMECOP error (can be valgrind bug)

Process terminating with default action of signal 4 (SIGILL)
 Illegal opcode at address 0x10988A
   at 0x...: core (try-anything.c:53)
   by 0x...: salsa20.part.0 (try-anything.c:89)
   by 0x...: salsa20 (try-anything.c:85)
   by 0x...: testvector (try-anything.c:124)
   by 0x...: input_prepare (try-anything.c:162)
   by 0x...: test (try.c:95)
   by 0x...: main (try-anything.c:345)

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

Implementation	Compiler
`ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`

Passed TIMECOP

TIMECOP iterations: 10

Number of similar (implementation,compiler) pairs: 5, namely:

Implementation	Compiler
`ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`ref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`