Implementation notes: aarch64, par3, crypto_scalarmult/curve25519

Computer: par3
Architecture: aarch64
CPU ID: unknown CPU ID
SUPERCOP version: 20170718
Operation: crypto_scalarmult
Primitive: curve25519
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
1908947? ? ?? ? ?donna_c64gcc_-funroll-loops_-march=native_-mtune=native_-O32017072020170718
1920327? ? ?? ? ?donna_c64gcc_-funroll-loops_-march=native_-mtune=native_-O22017072020170718
2073356? ? ?? ? ?ref10gcc_-funroll-loops_-march=native_-mtune=native_-O32017072020170718
2092130? ? ?? ? ?donna_c64gcc_-march=native_-mtune=native_-O22017072020170718
2098786? ? ?? ? ?ref10gcc_-march=native_-mtune=native_-O32017072020170718
2115722? ? ?? ? ?ref10gcc_-funroll-loops_-march=native_-mtune=native_-O22017072020170718
2160768? ? ?? ? ?donna_c64gcc_-funroll-loops_-march=native_-mtune=native_-Os2017072020170718
2163490? ? ?? ? ?donna_c64gcc_-march=native_-mtune=native_-O32017072020170718
2221921? ? ?? ? ?ref10gcc_-march=native_-mtune=native_-O22017072020170718
2264382? ? ?? ? ?donna_c64gcc_-march=native_-mtune=native_-Os2017072020170718
2295638? ? ?? ? ?ref10gcc_-funroll-loops_-march=native_-mtune=native_-Os2017072020170718
2509465? ? ?? ? ?ref10gcc_-march=native_-mtune=native_-Os2017072020170718
52350135? ? ?? ? ?refgcc_-funroll-loops_-march=native_-mtune=native_-O32017072020170718
55241263? ? ?? ? ?refgcc_-funroll-loops_-march=native_-mtune=native_-O22017072020170718
58960774? ? ?? ? ?refgcc_-march=native_-mtune=native_-O32017072020170718
68780740? ? ?? ? ?refgcc_-march=native_-mtune=native_-O22017072020170718
75095482? ? ?? ? ?refgcc_-funroll-loops_-march=native_-mtune=native_-Os2017072020170718
77969703? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os2017072020170718

Compiler output

Implementation: crypto_scalarmult/curve25519/donna_c64
Compiler: gcc -funroll-loops -march=native -mtune=native -O2
smult.c: smult.c:149:1: warning: always_inline function might not be inlinable [-Wattributes]
smult.c: fsquare_times(felem output, const felem in, limb count) {
smult.c: ^~~~~~~~~~~~~
smult.c: smult.c:100:1: warning: always_inline function might not be inlinable [-Wattributes]
smult.c: fmul(felem output, const felem in2, const felem in) {
smult.c: ^~~~
smult.c: smult.c:70:1: warning: always_inline function might not be inlinable [-Wattributes]
smult.c: fscalar_product(felem output, const felem in, const limb scalar) {
smult.c: ^~~~~~~~~~~~~~~
smult.c: smult.c:56:1: warning: always_inline function might not be inlinable [-Wattributes]
smult.c: fdifference_backwards(felem out, const felem in) {
smult.c: ^~~~~~~~~~~~~~~~~~~~~
smult.c: smult.c:41:1: warning: always_inline function might not be inlinable [-Wattributes]
smult.c: fsum(limb *output, const limb *in) {
smult.c: ^~~~

Number of similar (compiler,implementation) pairs: 6, namely:
CompilerImplementations
gcc -funroll-loops -march=native -mtune=native -O2 donna_c64
gcc -funroll-loops -march=native -mtune=native -O3 donna_c64
gcc -funroll-loops -march=native -mtune=native -Os donna_c64
gcc -march=native -mtune=native -O2 donna_c64
gcc -march=native -mtune=native -O3 donna_c64
gcc -march=native -mtune=native -Os donna_c64