Implementation notes: amd64, hydra4, crypto_hash/mcssha6

Computer: hydra4
Microarchitecture: amd64; K10 32nm (300f10)
Architecture: amd64
CPU ID: AuthenticAMD-00300f10-178bfbff
SUPERCOP version: 20240625
Operation: crypto_hash
Primitive: mcssha6

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
76128	4337 0 0	14406 804 888	`T:ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
78509	4558 0 0	15142 804 888	`T:ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
86152	5382 0 0	18224 812 888	`T:ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
86175	5732 0 0	17584 812 888	`T:ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
86188	5382 0 0	18224 812 888	`T:ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
88612	7471 0 0	20000 780 952	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
88968	5508 0 0	16832 780 952	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
89360	3873 0 0	13531 756 920	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
93836	4887 0 0	15471 772 952	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625

Compiler output

mcssha6.c: mcssha6.c:54:8: warning: unused variable 'filename' [-Wunused-variable]
mcssha6.c:                 char filename[128];
mcssha6.c:                      ^
mcssha6.c: mcssha6.c:376:26: warning: unused variable 'x1' [-Wunused-variable]
mcssha6.c:                 register unsigned long x1,x2,x3,x4,i;
mcssha6.c:                                        ^
mcssha6.c: mcssha6.c:376:29: warning: unused variable 'x2' [-Wunused-variable]
mcssha6.c:                 register unsigned long x1,x2,x3,x4,i;
mcssha6.c:                                           ^
mcssha6.c: mcssha6.c:376:32: warning: unused variable 'x3' [-Wunused-variable]
mcssha6.c:                 register unsigned long x1,x2,x3,x4,i;
mcssha6.c:                                              ^
mcssha6.c: mcssha6.c:376:35: warning: unused variable 'x4' [-Wunused-variable]
mcssha6.c:                 register unsigned long x1,x2,x3,x4,i;
mcssha6.c:                                                 ^
mcssha6.c: mcssha6.c:378:15: warning: unused variable 'empty' [-Wunused-variable]
mcssha6.c:                 BitSequence empty,bits,last;
mcssha6.c:                             ^
mcssha6.c: mcssha6.c:378:21: warning: unused variable 'bits' [-Wunused-variable]
mcssha6.c:                 BitSequence empty,bits,last;
mcssha6.c:                                   ^
mcssha6.c: mcssha6.c:378:26: warning: unused variable 'last' [-Wunused-variable]
mcssha6.c:                 BitSequence empty,bits,last;
mcssha6.c:                                        ^
mcssha6.c: 8 warnings 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 (Debian_Clang_11.0.1)`
`T:ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

mcssha6.c: mcssha6.c: In function 'Init':
mcssha6.c: mcssha6.c:60:23: warning: suggest parentheses around comparison in operand of '|' [-Wparentheses]
mcssha6.c:    60 |         if(hashbitlen == 224 | hashbitlen == 256)
mcssha6.c:       |            ~~~~~~~~~~~^~~~~~
mcssha6.c: mcssha6.c:54:8: warning: unused variable 'filename' [-Wunused-variable]
mcssha6.c:    54 |   char filename[128];
mcssha6.c:       |        ^~~~~~~~
mcssha6.c: mcssha6.c: In function 'Update':
mcssha6.c: mcssha6.c:98:17: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
mcssha6.c:    98 |         if(data == NULL & databitlen == 0)return(SUCCESS);
mcssha6.c:       |                 ^
mcssha6.c: mcssha6.c:99:11: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
mcssha6.c:    99 |   if(data == NULL & databitlen != 0)return(BAD_HASHBITLEN);
mcssha6.c:       |           ^
mcssha6.c: mcssha6.c:113:29: warning: suggest parentheses around comparison in operand of '|' [-Wparentheses]
mcssha6.c:   113 |            if(c->hashbitlen == 224 | c->hashbitlen == 256)
mcssha6.c:       |               ~~~~~~~~~~~~~~^~~~~~
mcssha6.c: mcssha6.c:159:29: warning: suggest parentheses around comparison in operand of '|' [-Wparentheses]
mcssha6.c:   159 |            if(c->hashbitlen == 224 | c->hashbitlen == 256)
mcssha6.c:       |               ~~~~~~~~~~~~~~^~~~~~
mcssha6.c: mcssha6.c: In function 'Final':
mcssha6.c: mcssha6.c:378:26: warning: unused variable 'last' [-Wunused-variable]
mcssha6.c:   378 |   BitSequence empty,bits,last;
mcssha6.c:       |                          ^~~~
mcssha6.c: mcssha6.c:378:21: warning: unused variable 'bits' [-Wunused-variable]
mcssha6.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 (10.2.1_20210110)`
`T:ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`