Implementation notes: amd64, samba, crypto_aead/grain128aead

Computer: samba
Microarchitecture: amd64; Skylake (506e3)
Architecture: amd64
CPU ID: GenuineIntel-000506e3-bfebfbff
SUPERCOP version: 20240716
Operation: crypto_aead
Primitive: grain128aead

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
321507	6758 0 0	25021 868 1088	`T:opt32`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
326114	6696 0 0	23357 868 1024	`T:opt32`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
343179	7781 0 0	25749 868 1056	`T:opt32`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
357567	6020 0 0	20165 868 1024	`T:opt32`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
360045	4213 0 0	19167 860 1088	`T:opt32`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
387422	3738 0 0	18911 828 1088	`T:opt32`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
469054	3261 0 0	17122 804 1056	`T:opt32`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
667458	9349 0 0	27015 828 1088	`T:opt32`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
814774	3900 0 0	19415 828 1088	`T:opt32`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
5347520	18520 0 1	36055 876 1088	`T:ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
5834034	25856 0 1	43649 836 1120	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
5855713	10425 0 1	28351 876 1056	`T:ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
6848476	15183 0 1	31895 876 1024	`T:ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
7315619	6032 0 1	20905 868 1088	`T:ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
9310980	5360 0 1	20993 836 1120	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
10770924	5539 0 1	19791 876 1024	`T:ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
15900377	3709 0 1	17692 812 1088	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716
44356688	4107 0 1	19222 820 1120	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240717	20240716

Compiler output

grain128aead_32p.c: grain128aead_32p.c:78:6: warning: variable 'mstmp' set but not used [-Wunused-but-set-variable]
grain128aead_32p.c:         u16 mstmp = ms;
grain128aead_32p.c:             ^
grain128aead_32p.c: grain128aead_32p.c:111:5: warning: variable 'mstmp' set but not used [-Wunused-but-set-variable]
grain128aead_32p.c:         u8 mstmp = ms;
grain128aead_32p.c:            ^
grain128aead_32p.c: 2 warnings generated.

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

Implementation	Compiler
`T:opt32`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt32`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt32`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt32`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt32`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`

Compiler output

grain128aead_32p.c: grain128aead_32p.c: In function 'crypto_aead_grain128aead_opt32_timingleaks_encrypt':
grain128aead_32p.c: grain128aead_32p.c:275:13: warning: 'rem_word' may be used uninitialized in this function [-Wmaybe-uninitialized]
grain128aead_32p.c:   275 |         u32 rem_word;
grain128aead_32p.c:       |             ^~~~~~~~
grain128aead_32p.c: grain128aead_32p.c: In function 'crypto_aead_grain128aead_opt32_timingleaks_decrypt':
grain128aead_32p.c: grain128aead_32p.c:365:13: warning: 'rem_word' may be used uninitialized in this function [-Wmaybe-uninitialized]
grain128aead_32p.c:   365 |         u32 rem_word;
grain128aead_32p.c:       |             ^~~~~~~~

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

Implementation	Compiler
`T:opt32`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:opt32`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`

Compiler output

grain128aead_32p.c: grain128aead_32p.c: In function 'crypto_aead_grain128aead_opt32_timingleaks_encrypt':
grain128aead_32p.c: grain128aead_32p.c:295:35: warning: 'rem_word' may be used uninitialized in this function [-Wmaybe-uninitialized]
grain128aead_32p.c:   295 |                 *(c + j) = ((u8) (getkb(rem_word) >> 8)) ^ *(m + j);
grain128aead_32p.c:       |                                   ^~~~~~~~~~~~~~~
grain128aead_32p.c: grain128aead_32p.c: In function 'crypto_aead_grain128aead_opt32_timingleaks_decrypt':
grain128aead_32p.c: grain128aead_32p.c:385:35: warning: 'rem_word' may be used uninitialized in this function [-Wmaybe-uninitialized]
grain128aead_32p.c:   385 |                 *(m + j) = ((u8) (getkb(rem_word) >> 8)) ^ *(c + j);
grain128aead_32p.c:       |                                   ^~~~~~~~~~~~~~~

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

Implementation	Compiler
`T:opt32`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`

Compiler output

grain128aead.c: grain128aead.c:140:31: warning: argument 1 of type 'unsigned char[64]' with mismatched bound [-Warray-parameter=]
grain128aead.c:   140 | void auth_shift(unsigned char sr[64], unsigned char fb)
grain128aead.c:       |                 ~~~~~~~~~~~~~~^~~~~~
grain128aead.c: In file included from grain128aead.c:20:
grain128aead.c: grain128aead.h:26:31: note: previously declared as 'unsigned char[32]'
grain128aead.c:    26 | void auth_shift(unsigned char sr[32], unsigned char fb);
grain128aead.c:       |                 ~~~~~~~~~~~~~~^~~~~~
grain128aead.c: grain128aead.c: In function 'auth_shift':
grain128aead.c: grain128aead.c:145:11: warning: array subscript 63 is outside array bounds of 'unsigned char[32]' [-Warray-bounds]
grain128aead.c:   145 |         sr[63] = fb;
grain128aead.c:       |         ~~^~~~
grain128aead.c: grain128aead.c:140:31: note: while referencing 'sr'
grain128aead.c:   140 | void auth_shift(unsigned char sr[64], unsigned char fb)
grain128aead.c:       |                 ~~~~~~~~~~~~~~^~~~~~
grain128aead.c: grain128aead.c:143:23: warning: '__builtin_memmove' forming offset [32, 62] is out of the bounds [0, 32] [-Warray-bounds]
grain128aead.c:   143 |                 sr[i] = sr[i+1];
grain128aead.c:       |                 ~~~~~~^~~~~~~~~

Number of similar (implementation,compiler) pairs: 3, 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 -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`

Compiler output

grain128aead.c: grain128aead.c:140:31: warning: argument 1 of type 'unsigned char[64]' with mismatched bound [-Warray-parameter=]
grain128aead.c:   140 | void auth_shift(unsigned char sr[64], unsigned char fb)
grain128aead.c:       |                 ~~~~~~~~~~~~~~^~~~~~
grain128aead.c: In file included from grain128aead.c:20:
grain128aead.c: grain128aead.h:26:31: note: previously declared as 'unsigned char[32]'
grain128aead.c:    26 | void auth_shift(unsigned char sr[32], unsigned char fb);
grain128aead.c:       |                 ~~~~~~~~~~~~~~^~~~~~

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

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

Namespace violations

grain128aead_32p.o auth_accumulate T
grain128aead_32p.o auth_accumulate8 T
grain128aead_32p.o encode_der T
grain128aead_32p.o getkb T
grain128aead_32p.o getmb T
grain128aead_32p.o grain_init T
grain128aead_32p.o grain_reinit T
grain128aead_32p.o next_keystream T

Number of similar (implementation,compiler) pairs: 9, namely:

Implementation	Compiler
`T:opt32`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt32`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt32`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt32`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt32`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:opt32`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:opt32`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:opt32`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:opt32`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`

Namespace violations

grain128aead.o accumulate T
grain128aead.o auth_shift T
grain128aead.o encode_der T
grain128aead.o grain_round B
grain128aead.o init_data T
grain128aead.o init_grain T
grain128aead.o next_h T
grain128aead.o next_lfsr_fb T
grain128aead.o next_nfsr_fb T
grain128aead.o next_z T
grain128aead.o shift T
grain128aead.o swapsb T

Number of similar (implementation,compiler) pairs: 9, 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)`
`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)`