Implementation notes: amd64, speed2supercop, crypto_stream/cryptmtv3

Computer: speed2supercop
Microarchitecture: amd64; Haswell+AES (306c3)
Architecture: amd64
CPU ID: GenuineIntel-000306c3-1fc9cbf5
SUPERCOP version: 20240425
Operation: crypto_stream
Primitive: cryptmtv3

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
6636	12147 4 4	26925 756 872	`T:e/v3`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20240426	20240425
6684	9008 4 4	21925 756 872	`T:e/v3`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20240426	20240425
6764	9949 4 4	22373 756 872	`T:e/v3`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20240426	20240425
7228	5830 4 4	17048 732 840	`T:e/v3`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20240426	20240425

Compiler output

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

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:e/v3
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:e/v3
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -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[4]' {aka 'unsigned int[4]'}
cryptmt-v3.c: e/cryptmt-v3.c:189:5: note: referencing argument 2 of type 'const u32[4]' {aka 'const unsigned int[4]'}
cryptmt-v3.c: e/cryptmt-v3.c:189:5: note: referencing argument 3 of type 'const u32[4]' {aka 'const unsigned int[4]'}
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: | ^~~~~~~~~~~~
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[4]' {aka 'unsigned int[4]'}
cryptmt-v3.c: e/cryptmt-v3.c:189:5: note: referencing argument 2 of type 'const u32[4]' {aka 'const unsigned int[4]'}
cryptmt-v3.c: e/cryptmt-v3.c:189:5: note: referencing argument 3 of type 'const u32[4]' {aka 'const unsigned int[4]'}
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: | ^~~~~~~~~~~~
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[4]' {aka 'unsigned int[4]'}
cryptmt-v3.c: e/cryptmt-v3.c:189:5: note: referencing argument 2 of type 'const u32[4]' {aka 'const unsigned int[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