Implementation notes: amd64, hertz, crypto_stream/cryptmtv3
Computer: hertz
Microarchitecture: amd64; Zen 4 (a60f12)
Architecture: amd64
CPU ID: AuthenticAMD-00a60f12-178bfbff
SUPERCOP version: 20240716
Operation: crypto_stream
Primitive: cryptmtv3
| Time | Object size | Test size | Implementation | Compiler | Benchmark date | SUPERCOP version |
|---|
| 4764 | 29045 4 1 | 48950 832 1032 | T:e/v3 | clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall | 20240716 | 20240716 |
| 4838 | 29045 4 1 | 49062 832 1032 | T:e/v3 | clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall | 20240716 | 20240716 |
| 5983 | 8560 4 1 | 22312 824 1032 | T:e/v3 | clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall | 20240716 | 20240716 |
Compiler output
cryptmt-v3.c: In file included from cryptmt-v3.c:1:
cryptmt-v3.c: In file included from ./e/cryptmt-v3.c:66:
cryptmt-v3.c: ./e/sse2.c:126:10: warning: variable 'accum' set but not used [-Wunused-but-set-variable]
cryptmt-v3.c: 126 | u32 *accum;
cryptmt-v3.c: | ^
cryptmt-v3.c: In file included from cryptmt-v3.c:1:
cryptmt-v3.c: ./e/cryptmt-v3.c:149:10: warning: variable 'accum' set but not used [-Wunused-but-set-variable]
cryptmt-v3.c: 149 | u32 *accum;
cryptmt-v3.c: | ^
cryptmt-v3.c: ./e/cryptmt-v3.c:187:2: warning: array index 156 is past the end of the array (that has type 'u32[156][4]' (aka 'unsigned int[156][4]')) [-Warray-bounds]
cryptmt-v3.c: 187 | 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: 25 | 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 (that has type 'u32[156][4]' (aka 'unsigned int[156][4]')) [-Warray-bounds]
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:25:5: note: array 'sfmt' declared here
cryptmt-v3.c: 25 | u32 sfmt[N][4];
cryptmt-v3.c: | ^
cryptmt-v3.c: 4 warnings generated.
Number of similar (implementation,compiler) pairs: 3, namely:
| Implementation | Compiler |
| T:e/v3 | clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1)) |
| T:e/v3 | clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1)) |
| T:e/v3 | clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_18.1.3_(1ubuntu1)) |
Compiler output
cryptmt-v3.c: In file included from e/cryptmt-v3.c:66,
cryptmt-v3.c: from cryptmt-v3.c:1:
cryptmt-v3.c: e/sse2.c: In function 'fast_genrand_bytes':
cryptmt-v3.c: e/sse2.c:126:10: warning: variable 'accum' set but not used [-Wunused-but-set-variable]
cryptmt-v3.c: 126 | u32 *accum;
cryptmt-v3.c: | ^~~~~
cryptmt-v3.c: e/cryptmt-v3.c: In function 'genrand_bytes':
cryptmt-v3.c: e/cryptmt-v3.c:149:10: warning: variable 'accum' set but not used [-Wunused-but-set-variable]
cryptmt-v3.c: 149 | u32 *accum;
cryptmt-v3.c: | ^~~~~
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:187:17: warning: array subscript 156 is above array bounds of 'u32[156][4]' {aka 'unsigned int[156][4]'} [-Warray-bounds=]
cryptmt-v3.c: 187 | ps->sfmt[N][i] = ps->sfmt[0][i];
cryptmt-v3.c: | ~~~~~~~~^~~
cryptmt-v3.c: e/cryptmt-v3.c:25:9: note: while referencing 'sfmt'
cryptmt-v3.c: 25 | u32 sfmt[N][4];
cryptmt-v3.c: ...
Number of similar (implementation,compiler) pairs: 3, namely:
| Implementation | Compiler |
| T:e/v3 | gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0) |
| T:e/v3 | gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0) |
| T:e/v3 | gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (13.2.0) |