Implementation notes: amd64, rome0, crypto_dh/ed521gs

Computer: rome0
Microarchitecture: amd64; Zen 2 (830f10)
Architecture: amd64
CPU ID: AuthenticAMD-00830f10-178bfbff
SUPERCOP version: 20240625
Operation: crypto_dh
Primitive: ed521gs
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
321900630527 0 052256 820 1752T:refclang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062520240625
328744431183 0 052992 820 1752T:refclang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062520240625
342759410940 0 029666 788 1752T:refgcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024062520240625
347116112585 0 032270 812 1720T:refclang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062520240625
379431620197 0 042226 796 1784T:refgcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024062520240625
388595717111 0 037402 796 1784T:refgcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024062520240625
409689914491 0 033662 812 1720T:refclang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062520240625
414643640087 0 061784 820 1720T:refclang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall2024062520240625
610919016837 0 036568 788 1784T:refgcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall2024062520240625

Compiler output

Implementation: T:ref
Security model: timingleaks
Compiler: clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall
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 (compiler,implementation) pairs: 5, namely:
CompilerImplementations
clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall T:ref
clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall T:ref
clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall T:ref
clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall T:ref
clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall T:ref

Compiler output

Implementation: T:ref
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall
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 (compiler,implementation) pairs: 4, namely:
CompilerImplementations
gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall T:ref
gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall T:ref
gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall T:ref
gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall T:ref