Implementation notes: amd64, samba, crypto_aead/aes128n8t8clocv2

Computer: samba
Microarchitecture: amd64; Skylake (506e3)
Architecture: amd64
CPU ID: GenuineIntel-000506e3-bfebfbff
SUPERCOP version: 20240625
Operation: crypto_aead
Primitive: aes128n8t8clocv2

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
17214	5973 0 192	23899 844 1280	`T:aesni`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
17387	4544 0 192	19165 836 1280	`T:aesni`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
17402	6390 0 192	23979 820 1280	`T:aesni`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
17411	6790 0 192	22235 820 1280	`T:aesni`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
17415	5922 0 192	23555 844 1248	`T:aesni`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
17790	6325 0 192	20179 844 1216	`T:aesni`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
18093	6190 0 192	19958 796 1248	`T:aesni`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
18209	6341 0 192	21451 820 1280	`T:aesni`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
108098	22019 0 0	37197 804 1088	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
109019	25737 0 0	43061 804 1088	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
109675	21254 0 0	34744 780 1056	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
117130	22218 0 0	36932 796 1088	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
121551	21155 0 0	35279 844 1024	`T:ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
122373	20458 0 0	35361 836 1088	`T:ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
122502	22462 0 0	40391 844 1056	`T:ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
122733	23290 0 0	41519 844 1088	`T:ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
124220	22755 0 0	39383 844 1024	`T:ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625

Compiler output

encrypt.c: In file included from encrypt.c:38:
encrypt.c: ./aes.h:30:2: error: '__builtin_ia32_aeskeygenassist128' needs target feature aes
encrypt.c:         EXPAND_ASSIST(x0, x1, x2, x0,   1);    roundkeys[1]  = x0;
encrypt.c:         ^
encrypt.c: ./aes.h:13:7: note: expanded from macro 'EXPAND_ASSIST'
encrypt.c:         v2 = _mm_aeskeygenassist_si128(v4, aes_const);                  \
encrypt.c:              ^
encrypt.c: /usr/lib/llvm-14/lib/clang/14.0.0/include/__wmmintrin_aes.h:136:13: note: expanded from macro '_mm_aeskeygenassist_si128'
encrypt.c:   ((__m128i)__builtin_ia32_aeskeygenassist128((__v2di)(__m128i)(C), (int)(R)))
encrypt.c:             ^
encrypt.c: In file included from encrypt.c:38:
encrypt.c: ./aes.h:31:2: error: '__builtin_ia32_aeskeygenassist128' needs target feature aes
encrypt.c:         EXPAND_ASSIST(x0, x1, x2, x0,   2);    roundkeys[2]  = x0;
encrypt.c:         ^
encrypt.c: ./aes.h:13:7: note: expanded from macro 'EXPAND_ASSIST'
encrypt.c:         v2 = _mm_aeskeygenassist_si128(v4, aes_const);                  \
encrypt.c:              ^
encrypt.c: /usr/lib/llvm-14/lib/clang/14.0.0/include/__wmmintrin_aes.h:136:13: note: expanded from macro '_mm_aeskeygenassist_si128'
encrypt.c:   ((__m128i)__builtin_ia32_aeskeygenassist128((__v2di)(__m128i)(C), (int)(R)))
encrypt.c:             ^
encrypt.c: In file included from encrypt.c:38:
encrypt.c: ./aes.h:32:2: error: '__builtin_ia32_aeskeygenassist128' needs target feature aes
encrypt.c:         EXPAND_ASSIST(x0, x1, x2, x0,   4);    roundkeys[3]  = x0;
encrypt.c:         ^
encrypt.c: ./aes.h:13:7: note: expanded from macro 'EXPAND_ASSIST'
encrypt.c: ...

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

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

Compiler output

encrypt.c: encrypt.c:68:2: warning: misleading indentation; statement is not part of the previous 'for' [-Wmisleading-indentation]
encrypt.c:         return RETURN_SUCCESS;
encrypt.c:         ^
encrypt.c: encrypt.c:63:5: note: previous statement is here
encrypt.c:     for(i = 0; i < CRYPTO_ABYTES; i++)
encrypt.c:     ^
encrypt.c: 1 warning generated.

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

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

Compiler output

encrypt.c: encrypt.c: In function 'crypto_aead_aes128n8t8clocv2_ref_timingleaks_decrypt':
encrypt.c: encrypt.c:63:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
encrypt.c:    63 |     for(i = 0; i < CRYPTO_ABYTES; i++)
encrypt.c:       |     ^~~
encrypt.c: encrypt.c:68:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
encrypt.c:    68 |         return RETURN_SUCCESS;
encrypt.c:       |         ^~~~~~

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

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