Implementation notes: amd64, alder2,1f626960,5600000, crypto_dh/ed521gs

Computer: alder2,1f626960,5600000
Microarchitecture: amd64; Golden Cove (906a4-40)
Architecture: amd64
CPU ID: GenuineIntel-000906a4-40-bfebfbff
SUPERCOP version: 20240625
Operation: crypto_dh
Primitive: ed521gs

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
2429604	20878 0 0	44594 796 1816	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
2493119	17096 0 0	38802 796 1816	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
2555678	10939 0 0	30530 788 1784	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
2582931	29623 0 0	52320 820 1784	`T:ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
2653483	30279 0 0	53104 820 1784	`T:ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
2655068	40087 0 0	62632 820 1752	`T:ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
2734406	12241 0 0	32806 812 1752	`T:ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
2745550	14527 0 0	34550 812 1752	`T:ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625
4261066	16477 0 0	37664 788 1816	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240628	20240625

Compiler output

dh.c: dh.c:740:27: warning: unused variable 'S' [-Wunused-variable]
dh.c:         ECp W[1+(1<<(WINDOW-1))],S[2],Q;
dh.c:                                  ^
dh.c: dh.c:741:8: warning: unused variable 'j' [-Wunused-variable]
dh.c:         int i,j,m;
dh.c:               ^
dh.c: dh.c:741:10: warning: unused variable 'm' [-Wunused-variable]
dh.c:         int i,j,m;
dh.c:                 ^
dh.c: dh.c:763:8: warning: unused variable 'x' [-Wunused-variable]
dh.c:         int i,x,w[PANES];
dh.c:               ^
dh.c: dh.c:814:8: warning: unused variable 'x' [-Wunused-variable]
dh.c:         int i,x,w[PANES];
dh.c:               ^
dh.c: dh.c:815:14: warning: unused variable 'sh' [-Wunused-variable]
dh.c:         signed char sh;
dh.c:                     ^
dh.c: dh.c:23:21: warning: unused variable 'bot52bits' [-Wunused-const-variable]
dh.c: static const type64 bot52bits = 0xfffffffffffff;
dh.c:                     ^
dh.c: 7 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

dh.c: dh.c: In function 'mul':
dh.c: dh.c:741:10: warning: unused variable 'm' [-Wunused-variable]
dh.c:   741 |  int i,j,m;
dh.c:       |          ^
dh.c: dh.c:741:8: warning: unused variable 'j' [-Wunused-variable]
dh.c:   741 |  int i,j,m;
dh.c:       |        ^
dh.c: dh.c:740:27: warning: unused variable 'S' [-Wunused-variable]
dh.c:   740 |  ECp W[1+(1<<(WINDOW-1))],S[2],Q;
dh.c:       |                           ^
dh.c: dh.c: In function 'crypto_dh_ed521gs_ref_timingleaks_keypair':
dh.c: dh.c:763:8: warning: unused variable 'x' [-Wunused-variable]
dh.c:   763 |  int i,x,w[PANES];
dh.c:       |        ^
dh.c: dh.c: In function 'crypto_dh_ed521gs_ref_timingleaks':
dh.c: dh.c:815:14: warning: unused variable 'sh' [-Wunused-variable]
dh.c:   815 |  signed char sh;
dh.c:       |              ^~
dh.c: dh.c:814:8: warning: unused variable 'x' [-Wunused-variable]
dh.c:   814 |  int i,x,w[PANES];
dh.c:       |        ^
dh.c: At top level:
dh.c: dh.c:23:21: warning: 'bot52bits' defined but not used [-Wunused-const-variable=]
dh.c:    23 | static const type64 bot52bits = 0xfffffffffffff;
dh.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)`