Implementation notes: amd64, samba, crypto_encrypt/mceliece

Computer: samba
Microarchitecture: amd64; Skylake (506e3)
Architecture: amd64
CPU ID: GenuineIntel-000506e3-bfebfbff
SUPERCOP version: 20240625
Operation: crypto_encrypt
Primitive: mceliece
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
96539628104 128 849258962 1012 10272T:refclang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062920240625
99240625655 128 849255162 1012 10272T:refclang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062920240625
100487331850 128 849263026 1012 10336T:refclang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062920240625
101283014632 128 849242476 1004 10336T:refclang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062920240625
103839617775 128 849244898 1012 10272T:refclang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062920240625
107128920890 128 852850810 996 10368T:refgcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024062920240625
115225817254 128 852845194 996 10368T:refgcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024062920240625
128963914583 128 852842074 996 10368T:refgcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024062920240625
129874612478 128 852838970 988 10368T:refgcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024062920240625

Compiler output


misc.c: misc.c:6:35: warning: passing 'char *' to parameter of type 'unsigned char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign]
misc.c: int u8rnd() { char c; randombytes(&c,1); return 255 & (int) c; }
misc.c:                                   ^~
misc.c: .../supercop-data/samba/amd64/include/randombytes.h:8:40: note: passing argument to parameter here
misc.c: extern void randombytes(unsigned char *,unsigned long long);
misc.c:                                        ^
misc.c: 1 warning generated.

Number of similar (implementation,compiler) pairs: 5, namely:
ImplementationCompiler
T:refclang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:refclang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:refclang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:refclang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)
T:refclang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)

Compiler output


misc.c: misc.c: In function 'u8rnd':
misc.c: misc.c:6:35: warning: pointer targets in passing argument 1 of 'randombytes' differ in signedness [-Wpointer-sign]
misc.c:     6 | int u8rnd() { char c; randombytes(&c,1); return 255 & (int) c; }
misc.c:       |                                   ^~
misc.c:       |                                   |
misc.c:       |                                   char *
misc.c: In file included from misc.c:3:
misc.c: .../supercop-data/samba/amd64/include/randombytes.h:8:25: note: expected 'unsigned char *' but argument is of type 'char *'
misc.c:     8 | extern void randombytes(unsigned char *,unsigned long long);
misc.c:       |                         ^~~~~~~~~~~~~~~

Number of similar (implementation,compiler) pairs: 4, namely:
ImplementationCompiler
T:refgcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:refgcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:refgcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:refgcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)