Implementation notes: amd64, hydra7, crypto_dh/curve25519

Computer: hydra7
Microarchitecture: amd64; Sandy Bridge+AES (206a7)
Architecture: amd64
CPU ID: GenuineIntel-000206a7-bfebfbff
SUPERCOP version: 20240625
Operation: crypto_dh
Primitive: curve25519

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
612049	213 0 0	39245 812 1792	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
612249	213 0 0	40509 812 1792	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
621745	182 0 0	37709 804 1760	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625
629004	204 0 0	38861 812 1792	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240626	20240625

Compiler output

curve25519.c: In file included from ./fixmp.h:281,
curve25519.c:                  from x86_64/mpfq_p_25519.h:10,
curve25519.c:                  from mpfq_p_25519.h:5,
curve25519.c:                  from curve25519.c:20:
curve25519.c: ./fixmp_longlong.h: In function 'mgy_decode_1':
curve25519.c: ./fixmp_longlong.h:2527:7: warning: unused variable 'i' [-Wunused-variable]
curve25519.c:  2527 |   int i;
curve25519.c:       |       ^
curve25519.c: ./fixmp_longlong.h: In function 'mgy_decode_2':
curve25519.c: ./fixmp_longlong.h:2539:7: warning: unused variable 'i' [-Wunused-variable]
curve25519.c:  2539 |   int i;
curve25519.c:       |       ^
curve25519.c: ./fixmp_longlong.h: In function 'mgy_decode_3':
curve25519.c: ./fixmp_longlong.h:2551:7: warning: unused variable 'i' [-Wunused-variable]
curve25519.c:  2551 |   int i;
curve25519.c:       |       ^
curve25519.c: ./fixmp_longlong.h: In function 'mgy_decode_4':
curve25519.c: ./fixmp_longlong.h:2563:7: warning: unused variable 'i' [-Wunused-variable]
curve25519.c:  2563 |   int i;
curve25519.c:       |       ^
curve25519.c: ./fixmp_longlong.h: In function 'mgy_decode_5':
curve25519.c: ./fixmp_longlong.h:2575:7: warning: unused variable 'i' [-Wunused-variable]
curve25519.c:  2575 |   int i;
curve25519.c:       |       ^
curve25519.c: ./fixmp_longlong.h: In function 'mgy_decode_6':
curve25519.c: ...

Number of similar (implementation,compiler) pairs: 4, namely:

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