Implementation notes: aarch64, minimac, crypto_scalarmult/nistp256

Computer: minimac
Architecture: aarch64
CPU ID: unknown CPU ID
SUPERCOP version: 20211108
Operation: crypto_scalarmult
Primitive: nistp256

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
1828328	? ? ?	? ? ?	`T:mj32`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210530	20210529
1874727	? ? ?	? ? ?	`T:mj32`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20210530	20210529
2924553	? ? ?	? ? ?	`T:mj32`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210530	20210529
3193208	? ? ?	? ? ?	`T:mj32`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210530	20210529
5663379	? ? ?	? ? ?	`T:mj32`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20210530	20210529

Compiler output

Implementation: T:mj32
Security model: timingleaks
Compiler: clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

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.
try.c: ld: warning: object file (/Users/djb/supercop-20210529/supercop-data/minimac/aarch64/lib/knownrandombytes.o) was built for newer macOS version (11.3) than being linked (11.0)
try.c: ld: warning: object file (/Users/djb/supercop-20210529/supercop-data/minimac/aarch64/lib/kernelrandombytes.o) was built for newer macOS version (11.3) than being linked (11.0)
try.c: ld: warning: object file (/Users/djb/supercop-20210529/supercop-data/minimac/aarch64/lib/cpucycles.o) was built for newer macOS version (11.3) than being linked (11.0)
try.c: ld: warning: could not create compact unwind for _init: registers 21 and 22 not saved contiguously in frame
try.c: ld: warning: object file (/Users/djb/supercop-20210529/supercop-data/minimac/aarch64/lib/libsupercop.a(crypto_rng_chacha20_ref_constbranchindex-rng.o)) was built for newer macOS version (11.3) than being linked (11.0)
try.c: ld: warning: object file (/Users/djb/supercop-20210529/supercop-data/minimac/aarch64/lib/knownrandombytes.o) was built for newer macOS version (11.3) than being linked (11.0)
try.c: ld: warning: object file (/Users/djb/supercop-20210529/supercop-data/minimac/aarch64/lib/kernelrandombytes.o) was built for newer macOS version (11.3) than being linked (11.0)
try.c: ld: warning: object file (/Users/djb/supercop-20210529/supercop-data/minimac/aarch64/lib/cpucycles.o) was built for newer macOS version (11.3) than being linked (11.0)
try.c: ld: warning: could not create compact unwind for _init: registers 21 and 22 not saved contiguously in frame
try.c: ld: warning: object file (/Users/djb/supercop-20210529/supercop-data/minimac/aarch64/lib/libsupercop.a(crypto_rng_chacha20_ref_constbranchindex-rng.o)) was built for newer macOS version (11.3) than being linked (11.0)
measure.c: ld: warning: object file (/Users/djb/supercop-20210529/supercop-data/minimac/aarch64/lib/fastrandombytes.o) was built for newer macOS version (11.3) than being linked (11.0)ld: warning: object file (/Users/djb/supercop-20210529/supercop-data/minimac/aarch64/lib/kernelrandombytes.o) was built for newer macOS version (11.3) than being linked (11.0)
measure.c: ld: warning: object file (/Users/djb/supercop-20210529/supercop-data/minimac/aarch64/lib/cpucycles.o) was built for newer macOS version (11.3) than being linked (11.0)
measure.c:
measure.c: ld: warning: could not create compact unwind for _init: registers 21 and 22 not saved contiguously in frame
measure.c: ld: warning: could not create compact unwind for _randombytes: registers 21 and 22 not saved contiguously in frame
measure.c: ld: warning: object file (/Users/djb/supercop-20210529/supercop-data/minimac/aarch64/lib/libsupercop.a(crypto_rng_chacha20_ref_constbranchindex-rng.o)) was built for newer macOS version (11.3) than being linked (11.0)

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

Compiler	Implementations
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:mj32

Compiler output

Implementation: T:mj32
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

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: 83 | 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: 78 | 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: 92 | 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: 87 | static int isneutral_precomp(gep256_precomp p) {
gep256.c: | ~~~~~~~~~~~~~~~^

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:mj32
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:mj32
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:mj32
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:mj32