Implementation notes: amd64, h6sandy, crypto_encrypt/mceliece

Computer: h6sandy
Microarchitecture: amd64; Sandy Bridge (206a7)
Architecture: amd64
CPU ID: GenuineIntel-000206a7-bfebfbff
SUPERCOP version: 20240625
Operation: crypto_encrypt
Primitive: mceliece

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
1290360	23693 128 8492	47802 1012 10272	`T:ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240706	20240625
1309739	21062 128 8528	45298 996 10368	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240706	20240625
1310234	25655 128 8492	50362 1012 10272	`T:ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240706	20240625
1326067	26467 128 8492	52530 1012 10272	`T:ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240706	20240625
1346825	17948 128 8492	40386 1012 10272	`T:ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240706	20240625
1392396	14743 128 8492	36732 1004 10272	`T:ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240706	20240625
1414356	17308 128 8528	40450 996 10368	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240706	20240625
1489684	14665 128 8528	37418 996 10368	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240706	20240625
1514926	12492 128 8528	34202 988 10368	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240706	20240625

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/h6sandy/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:

Implementation	Compiler
`T:ref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:ref`	`clang -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/h6sandy/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:

Implementation	Compiler
`T:ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`