Implementation notes: amd64, cherry, crypto_stream/lexv2

Computer: cherry
Microarchitecture: amd64; Silvermont (406c4)
Architecture: amd64
CPU ID: GenuineIntel-000406c4-bfebfbff
SUPERCOP version: 20240716
Operation: crypto_stream
Primitive: lexv2

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
14136	9368 0 1	21710 804 952	`T:e/v2/schwabe/amd64-1`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
14139	9418 0 1	24512 812 952	`T:e/v2/schwabe/amd64-1`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
14154	9543 0 4	24296 780 1048	`T:e/v2/schwabe/amd64-1`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
14155	9418 0 1	24920 812 952	`T:e/v2/schwabe/amd64-1`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
14164	9418 0 1	22270 804 952	`T:e/v2/schwabe/amd64-1`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
14166	9543 0 4	23032 780 1048	`T:e/v2/schwabe/amd64-1`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
14168	9352 0 4	21155 756 1016	`T:e/v2/schwabe/amd64-1`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
14171	9418 0 1	23288 812 952	`T:e/v2/schwabe/amd64-1`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
14175	9524 0 4	22543 772 1048	`T:e/v2/schwabe/amd64-1`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
15379	9099 0 4	23848 780 1048	`T:e/v2/schwabe/amd64-2`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
15382	8974 0 1	22840 812 952	`T:e/v2/schwabe/amd64-2`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
15382	8974 0 1	24064 812 952	`T:e/v2/schwabe/amd64-2`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
15386	8908 0 4	20707 756 1016	`T:e/v2/schwabe/amd64-2`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
15388	8974 0 1	24472 812 952	`T:e/v2/schwabe/amd64-2`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
15390	8974 0 1	21822 804 952	`T:e/v2/schwabe/amd64-2`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
15394	9099 0 4	22584 780 1048	`T:e/v2/schwabe/amd64-2`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
15400	9080 0 4	22095 772 1048	`T:e/v2/schwabe/amd64-2`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
15426	8924 0 1	21262 804 952	`T:e/v2/schwabe/amd64-2`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
16135	13787 0 4	25595 756 1016	`T:e/v2/ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
16230	14698 0 4	28224 780 1048	`T:e/v2/ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
16552	16718 0 4	31472 780 1048	`T:e/v2/ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
16953	14368 0 4	27391 772 1048	`T:e/v2/ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
17845	14060 0 1	26382 804 952	`T:e/v2/ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
21162	16474 0 1	31984 812 952	`T:e/v2/ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
21265	14970 0 1	28832 812 952	`T:e/v2/ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
24301	14768 0 1	27590 804 952	`T:e/v2/ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716
26066	17290 0 1	32392 812 952	`T:e/v2/ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240718	20240716

Compiler output

lex.c: In file included from lex.c:1:
lex.c: ./e/lex.c:685:9: warning: array index 10 is past the end of the array (which contains 10 elements) [-Warray-bounds]
lex.c:         ctx->ks[10] = (t0 & 0xFF00FF00) ^ ((t2 & 0xFF00FF00)>>8); /* Leak for odd rounds */
lex.c:         ^       ~~
lex.c: ./e/ecrypt-sync.h:53:3: note: array 'ks' declared here
lex.c:   u32 ks[NUMWORDS];                     /* Keystream words collected from leaks */
lex.c:   ^
lex.c: In file included from lex.c:1:
lex.c: ./e/lex.c:692:6: warning: array index 11 is past the end of the array (which contains 10 elements) [-Warray-bounds]
lex.c:             ctx->ks[11] = ((s0 & 0xFF00FF)<<8) ^ (s2 & 0xFF00FF);    /* Leak for even rounds */
lex.c:             ^       ~~
lex.c: ./e/ecrypt-sync.h:53:3: note: array 'ks' declared here
lex.c:   u32 ks[NUMWORDS];                     /* Keystream words collected from leaks */
lex.c:   ^
lex.c: In file included from lex.c:1:
lex.c: ./e/lex.c:698:13: warning: array index 12 is past the end of the array (which contains 10 elements) [-Warray-bounds]
lex.c:             ctx->ks[12] = (t0 & 0xFF00FF00) ^ ((t2 & 0xFF00FF00)>>8); /* Leak for odd rounds */
lex.c:             ^       ~~
lex.c: ./e/ecrypt-sync.h:53:3: note: array 'ks' declared here
lex.c:   u32 ks[NUMWORDS];                     /* Keystream words collected from leaks */
lex.c:   ^
lex.c: 3 warnings generated.

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

Implementation	Compiler
`T:e/v2/ref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/ref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

lex.c: In file included from lex.c:1:
lex.c: e/lex.c: In function 'rijndaelEncrypt':
lex.c: e/lex.c:685:16: warning: array subscript 10 is above array bounds of 'u32[10]' {aka 'unsigned int[10]'} [-Warray-bounds]
lex.c:   685 |         ctx->ks[10] = (t0 & 0xFF00FF00) ^ ((t2 & 0xFF00FF00)>>8); /* Leak for odd rounds */
lex.c:       |         ~~~~~~~^~~~
lex.c: In file included from e/lex.c:34,
lex.c:                  from lex.c:1:
lex.c: e/ecrypt-sync.h:53:7: note: while referencing 'ks'
lex.c:    53 |   u32 ks[NUMWORDS];                     /* Keystream words collected from leaks */
lex.c:       |       ^~
lex.c: In file included from lex.c:1:
lex.c: e/lex.c:692:13: warning: array subscript 11 is above array bounds of 'u32[10]' {aka 'unsigned int[10]'} [-Warray-bounds]
lex.c:   692 |      ctx->ks[11] = ((s0 & 0xFF00FF)<<8) ^ (s2 & 0xFF00FF);    /* Leak for even rounds */
lex.c:       |      ~~~~~~~^~~~
lex.c: In file included from e/lex.c:34,
lex.c:                  from lex.c:1:
lex.c: e/ecrypt-sync.h:53:7: note: while referencing 'ks'
lex.c:    53 |   u32 ks[NUMWORDS];                     /* Keystream words collected from leaks */
lex.c:       |       ^~
lex.c: In file included from lex.c:1:
lex.c: e/lex.c:698:20: warning: array subscript 12 is above array bounds of 'u32[10]' {aka 'unsigned int[10]'} [-Warray-bounds]
lex.c:   698 |             ctx->ks[12] = (t0 & 0xFF00FF00) ^ ((t2 & 0xFF00FF00)>>8); /* Leak for odd rounds */
lex.c:       |             ~~~~~~~^~~~
lex.c: In file included from e/lex.c:34,
lex.c:                  from lex.c:1:
lex.c: ...

Number of similar (implementation,compiler) pairs: 3, namely:

Implementation	Compiler
`T:e/v2/ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:e/v2/ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:e/v2/ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Namespace violations

lex.o ECRYPT_process_blocks T
lex.o LEX_ivsetup T
lex.o rijndaelEncrypt T
lex.o rijndaelKeySetupEnc T

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

Implementation	Compiler
`T:e/v2/ref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/ref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:e/v2/ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:e/v2/ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:e/v2/ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Namespace violations

table.o aes_constants R
table.o aes_table0 R
table.o aes_table1 R
table.o aes_table2 R
table.o aes_table3 R
table.o aes_tablex R

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

Implementation	Compiler
`T:e/v2/schwabe/amd64-1`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/schwabe/amd64-1`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/schwabe/amd64-1`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/schwabe/amd64-1`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/schwabe/amd64-1`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:e/v2/schwabe/amd64-1`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:e/v2/schwabe/amd64-1`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:e/v2/schwabe/amd64-1`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:e/v2/schwabe/amd64-1`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`