Implementation notes: amd64, h8atom, crypto_stream/cryptmtv3

Computer: h8atom
Microarchitecture: amd64; Bonnell (30661)
Architecture: amd64
CPU ID: GenuineIntel-00030661-bfebfbff
SUPERCOP version: 20230530
Operation: crypto_stream
Primitive: cryptmtv3

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
14658	9902 4 1	23260 820 800	`T:e/v3`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230522	20221122
14665	9918 4 1	24452 820 800	`T:e/v3`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230522	20221122
14770	9911 4 1	21718 812 792	`T:e/v3`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230522	20221122
15183	10263 4 1	22796 820 800	`T:e/v3`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230522	20221122
16821	9921 4 4	23598 780 872	`T:e/v3`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230522	20221122
16870	10043 4 1	24348 820 800	`T:e/v3`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20230522	20221122
16891	12384 4 4	27454 780 872	`T:e/v3`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230522	20221122
17402	6235 4 4	18289 756 840	`T:e/v3`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230522	20221122
18242	10562 4 4	23805 772 872	`T:e/v3`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20230522	20221122

Compiler output

Implementation: T:e/v3
Security model: timingleaks
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

cryptmt-v3.c: In file included from cryptmt-v3.c:1:
cryptmt-v3.c: ./e/cryptmt-v3.c:187:2: warning: array index 156 is past the end of the array (which contains 156 elements) [-Warray-bounds]
cryptmt-v3.c: ps->sfmt[N][i] = ps->sfmt[0][i];
cryptmt-v3.c: ^ ~
cryptmt-v3.c: ./e/cryptmt-v3.c:25:5: note: array 'sfmt' declared here
cryptmt-v3.c: u32 sfmt[N][4];
cryptmt-v3.c: ^
cryptmt-v3.c: ./e/cryptmt-v3.c:189:18: warning: array index 156 is past the end of the array (which contains 156 elements) [-Warray-bounds]
cryptmt-v3.c: do_recursion(ps->sfmt[N], ps->sfmt[POS1], ps->sfmt[N - 1]);
cryptmt-v3.c: ^ ~
cryptmt-v3.c: ./e/cryptmt-v3.c:25:5: note: array 'sfmt' declared here
cryptmt-v3.c: u32 sfmt[N][4];
cryptmt-v3.c: ^
cryptmt-v3.c: 2 warnings generated.

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

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v3
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v3
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v3
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v3
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:e/v3

Compiler output

Implementation: T:e/v3
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE

cryptmt-v3.c: In file included from cryptmt-v3.c:1:
cryptmt-v3.c: e/cryptmt-v3.c: In function 'genrand_block_first':
cryptmt-v3.c: e/cryptmt-v3.c:189:5: warning: 'do_recursion' accessing 16 bytes in a region of size 0 [-Wstringop-overflow=]
cryptmt-v3.c: 189 | do_recursion(ps->sfmt[N], ps->sfmt[POS1], ps->sfmt[N - 1]);
cryptmt-v3.c: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cryptmt-v3.c: e/cryptmt-v3.c:189:5: note: referencing argument 1 of type 'u32 *' {aka 'unsigned int *'}
cryptmt-v3.c: e/cryptmt-v3.c:126:20: note: in a call to function 'do_recursion'
cryptmt-v3.c: 126 | static INLINE void do_recursion(u32 a[4], const u32 b[4], const u32 c[4]) {
cryptmt-v3.c: | ^~~~~~~~~~~~

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

Compiler	Implementations
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:e/v3