Implementation notes: aarch64, a53, crypto_scalarmult/curve25519

Computer: a53
Architecture: aarch64
CPU ID: unknown CPU ID
SUPERCOP version: 20160731
Operation: crypto_scalarmult
Primitive: curve25519
TimeImplementationCompilerBenchmark dateSUPERCOP version
2086155ref10gcc -mcpu=cortex-a53 -Os -fomit-frame-pointer -fwrapv2016080220160731
2487105ref10gcc -mcpu=cortex-a53 -O3 -fomit-frame-pointer -fwrapv2016080220160731
2555145donna_c64gcc -mcpu=cortex-a53 -O2 -fomit-frame-pointer -fwrapv2016080220160731
2592810ref10gcc -mcpu=cortex-a53 -O2 -fomit-frame-pointer -fwrapv2016080220160731
2734965donna_c64gcc -mcpu=cortex-a53 -O -fomit-frame-pointer -fwrapv2016080220160731
3041600donna_c64clang -mcpu=cortex-a53 -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments2016080220160731
3516000donna_c64gcc -mcpu=cortex-a53 -O3 -fomit-frame-pointer -fwrapv2016080220160731
3613600donna_c64gcc -mcpu=cortex-a53 -Os -fomit-frame-pointer -fwrapv2016080220160731
3664800ref10clang -mcpu=cortex-a53 -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments2016080220160731
3665655ref10gcc -mcpu=cortex-a53 -O -fomit-frame-pointer -fwrapv2016080220160731
48570840refgcc -mcpu=cortex-a53 -Os -fomit-frame-pointer -fwrapv2016080220160731
55187730refgcc -mcpu=cortex-a53 -O3 -fomit-frame-pointer -fwrapv2016080220160731
57339495refgcc -mcpu=cortex-a53 -O2 -fomit-frame-pointer -fwrapv2016080220160731
66296000refgcc -mcpu=cortex-a53 -O -fomit-frame-pointer -fwrapv2016080220160731
68730400refclang -mcpu=cortex-a53 -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments2016080220160731

Compiler output

Implementation: crypto_scalarmult/curve25519/donna_c64
Compiler: gcc -mcpu=cortex-a53 -O2 -fomit-frame-pointer -fwrapv
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: 4, namely:
CompilerImplementations
gcc -mcpu=cortex-a53 -O2 -fomit-frame-pointer -fwrapv donna_c64
gcc -mcpu=cortex-a53 -O3 -fomit-frame-pointer -fwrapv donna_c64
gcc -mcpu=cortex-a53 -O -fomit-frame-pointer -fwrapv donna_c64
gcc -mcpu=cortex-a53 -Os -fomit-frame-pointer -fwrapv donna_c64