Implementation notes: aarch64, pi4b, crypto_dh/curve25519

Computer: pi4b
Microarchitecture: aarch64; A72 (410fd083)
Architecture: aarch64
CPU ID: 410fd083
SUPERCOP version: 20221122
Operation: crypto_dh
Primitive: curve25519

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
1399296	176 0 0	21396 808 1552	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20221028	20221025
1400384	176 0 0	22428 824 1568	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20221028	20221025
1400573	184 0 0	22772 824 1568	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20221028	20221025
1401863	184 0 0	23716 824 1584	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20221028	20221025
1402091	168 0 0	24258 848 1568	`T:ref`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221028	20221025

Test failure

Implementation: T:mpfq
Security model: timingleaks
Compiler: clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

error 111
crypto_dh not associative

Number of similar (compiler,implementation) pairs: 5, namely:

Compiler	Implementations
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:mpfq
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:mpfq
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:mpfq
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:mpfq
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:mpfq

Compiler output

Implementation: T:mpfq
Security model: timingleaks
Compiler: clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

mpfq_p_25519.c: In file included from mpfq_p_25519.c:5:
mpfq_p_25519.c: ./x86_64/mpfq_p_25519.c:111:1: warning: non-void function does not return a value [-Wreturn-type]
mpfq_p_25519.c: }
mpfq_p_25519.c: ^
mpfq_p_25519.c: 1 warning generated.

Number of similar (compiler,implementation) pairs: 1, namely:

Compiler	Implementations
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:mpfq