Implementation notes: aarch64, hikey960, crypto_scalarmult/nistp256

Computer: hikey960
Architecture: aarch64
CPU ID: 410fd034
SUPERCOP version: 20190816
Operation: crypto_scalarmult
Primitive: nistp256

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
1439046	10280 30720 0	29304 31544 1600	`mj32`	`clang_-O3_-fomit-frame-pointer_-Qunused-arguments`	20191130	20190816
2007784	13356 30720 0	34727 31640 1584	`mj32`	`gcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer`	20191130	20190816
2522475	11180 30720 0	32703 31648 1616	`mj32`	`gcc_-funroll-loops_-O3_-fomit-frame-pointer`	20191130	20190816
2530800	11272 30720 0	32727 31648 1616	`mj32`	`gcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer`	20191130	20190816
2555775	9720 30720 0	29527 31648 1616	`mj32`	`gcc_-fno-schedule-insns_-O3_-fomit-frame-pointer`	20191130	20190816
2697300	10220 30720 0	29264 31544 1600	`mj32`	`clang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments`	20191130	20190816
2705625	10220 30720 0	29264 31544 1600	`mj32`	`clang_-O3_-fwrapv_-mavx2_-fomit-frame-pointer_-Qunused-arguments`	20191130	20190816
3472821	9604 30720 0	29463 31648 1616	`mj32`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv`	20191130	20190816
3762900	13356 30720 0	34727 31640 1584	`mj32`	`gcc_-funroll-loops_-O_-fomit-frame-pointer`	20191130	20190816
4137525	8204 30720 0	26447 31640 1584	`mj32`	`gcc_-O2_-fomit-frame-pointer`	20191130	20190816
4495500	11528 30720 0	32775 31640 1584	`mj32`	`gcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer`	20191130	20190816
4570425	11476 30720 0	32727 31640 1584	`mj32`	`gcc_-funroll-loops_-O2_-fomit-frame-pointer`	20191130	20190816
5003325	8184 30720 0	26431 31640 1584	`mj32`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv`	20191130	20190816
5024741	8304 30720 0	26471 31640 1584	`mj32`	`gcc_-fno-schedule-insns_-O2_-fomit-frame-pointer`	20191130	20190816
5469525	10220 30720 0	29264 31544 1600	`mj32`	`clang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments`	20191130	20190816
5544450	7880 30720 0	25227 31624 1584	`mj32`	`gcc_-fno-schedule-insns_-Os_-fomit-frame-pointer`	20191130	20190816
6419457	7876 30720 0	25227 31624 1584	`mj32`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv`	20191130	20190816
6448740	9596 30720 0	29471 31648 1616	`mj32`	`gcc_-O3_-fomit-frame-pointer`	20191130	20190816
7717380	7880 30720 0	25227 31624 1584	`mj32`	`gcc_-Os_-fomit-frame-pointer`	20191130	20190816
11290056	7840 30720 0	25219 31624 1584	`mj32`	`gcc_-funroll-loops_-Os_-fomit-frame-pointer`	20191130	20190816
11377479	7840 30720 0	25219 31624 1584	`mj32`	`gcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer`	20191130	20190816
18741826	9520 30720 0	27695 31640 1584	`mj32`	`gcc_-fno-schedule-insns_-O_-fomit-frame-pointer`	20191130	20190816
18972675	9576 30720 0	27751 31640 1584	`mj32`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv`	20191130	20190816
27731881	9520 30720 0	27695 31640 1584	`mj32`	`gcc_-O_-fomit-frame-pointer`	20191130	20190816
41749875	23992 30720 0	46083 31624 1584	`mj32`	`cc`	20191130	20190816
41799825	23992 30720 0	46083 31624 1584	`mj32`	`gcc`	20191130	20190816
50100120	23992 30720 0	46083 31624 1584	`mj32`	`gcc_-funroll-loops`	20191130	20190816

Compiler output

Implementation: mj32
Security model: unknown
Compiler: cc

gep256.c: gep256.c: In function 'isneutral':
gep256.c: gep256.c:83:28: warning: 'sizeof' on array function parameter 'p' will return size of 'crypto_uint32 (*)[8] {aka unsigned int (*)[8]}' [-Wsizeof-array-argument]
gep256.c: for (i = 0; i < sizeof p; ++i) x |= ((unsigned char *)p)[i];
gep256.c: ^
gep256.c: gep256.c:78:29: note: declared here
gep256.c: static int isneutral(gep256 p) {
gep256.c: ^
gep256.c: gep256.c: In function 'isneutral_precomp':
gep256.c: gep256.c:92:28: warning: 'sizeof' on array function parameter 'p' will return size of 'crypto_uint32 (*)[8] {aka unsigned int (*)[8]}' [-Wsizeof-array-argument]
gep256.c: for (i = 0; i < sizeof p; ++i) x |= ((unsigned char *)p)[i];
gep256.c: ^
gep256.c: gep256.c:87:45: note: declared here
gep256.c: static int isneutral_precomp(gep256_precomp p) {
gep256.c: ^

Number of similar (compiler,implementation) pairs: 23, namely:

Compiler	Implementations
cc	mj32
gcc	mj32
gcc -O2 -fomit-frame-pointer	mj32
gcc -O3 -fomit-frame-pointer	mj32
gcc -O -fomit-frame-pointer	mj32
gcc -Os -fomit-frame-pointer	mj32
gcc -fno-schedule-insns -O2 -fomit-frame-pointer	mj32
gcc -fno-schedule-insns -O3 -fomit-frame-pointer	mj32
gcc -fno-schedule-insns -O -fomit-frame-pointer	mj32
gcc -fno-schedule-insns -Os -fomit-frame-pointer	mj32
gcc -funroll-loops	mj32
gcc -funroll-loops -O2 -fomit-frame-pointer	mj32
gcc -funroll-loops -O3 -fomit-frame-pointer	mj32
gcc -funroll-loops -O -fomit-frame-pointer	mj32
gcc -funroll-loops -Os -fomit-frame-pointer	mj32
gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer	mj32
gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer	mj32
gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer	mj32
gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer	mj32
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv	mj32
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv	mj32
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv	mj32
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv	mj32

Compiler output

Implementation: mj32
Security model: unknown
Compiler: clang -O3 -fomit-frame-pointer -Qunused-arguments

gep256.c: gep256.c:83:28: warning: sizeof on array function parameter will return size of 'fe *' (aka 'crypto_uint32 (*)[8]') instead of 'gep256' (aka 'fe [3]') [-Wsizeof-array-argument]
gep256.c: for (i = 0; i < sizeof p; ++i) x |= ((unsigned char *)p)[i];
gep256.c: ^
gep256.c: gep256.c:78:29: note: declared here
gep256.c: static int isneutral(gep256 p) {
gep256.c: ^
gep256.c: gep256.c:92:28: warning: sizeof on array function parameter will return size of 'fe *' (aka 'crypto_uint32 (*)[8]') instead of 'gep256_precomp' (aka 'fe [2]') [-Wsizeof-array-argument]
gep256.c: for (i = 0; i < sizeof p; ++i) x |= ((unsigned char *)p)[i];
gep256.c: ^
gep256.c: gep256.c:87:45: note: declared here
gep256.c: static int isneutral_precomp(gep256_precomp p) {
gep256.c: ^
gep256.c: 2 warnings generated.

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

Compiler	Implementations
clang -O3 -fomit-frame-pointer -Qunused-arguments	mj32
clang -O3 -fwrapv -mavx2 -fomit-frame-pointer -Qunused-arguments	mj32
clang -O3 -fwrapv -mavx -fomit-frame-pointer -Qunused-arguments	mj32
clang -O3 -fwrapv -mavx -maes -mpclmul -fomit-frame-pointer -Qunused-arguments	mj32