Implementation notes: armeabi, tonido, crypto_scalarmult/curve25519

Computer: tonido
Architecture: armeabi
CPU ID: unknown CPU ID
SUPERCOP version: 20170718
Operation: crypto_scalarmult
Primitive: curve25519

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
13523196	? ? ?	? ? ?	`ref10`	`gcc_-funroll-loops_-march=native_-mtune=xscale_-Os`	20170802	20170718
14271900	? ? ?	? ? ?	`ref10`	`gcc_-march=native_-mtune=xscale_-Os`	20170802	20170718
17344788	? ? ?	? ? ?	`ref10`	`gcc_-funroll-loops_-march=native_-mtune=xscale_-O2`	20170802	20170718
17370318	? ? ?	? ? ?	`ref10`	`gcc_-funroll-loops_-march=native_-mtune=xscale_-O3`	20170802	20170718
17889564	? ? ?	? ? ?	`ref10`	`gcc_-march=native_-mtune=xscale_-O2`	20170802	20170718
17891328	? ? ?	? ? ?	`ref10`	`gcc_-march=native_-mtune=xscale_-O3`	20170802	20170718
142579770	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=native_-mtune=xscale_-O2`	20170802	20170718
143266386	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=native_-mtune=xscale_-O3`	20170802	20170718
153036564	? ? ?	? ? ?	`ref`	`gcc_-funroll-loops_-march=native_-mtune=xscale_-Os`	20170802	20170718
153287988	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=xscale_-Os`	20170802	20170718
155629266	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=xscale_-O2`	20170802	20170718
155969502	? ? ?	? ? ?	`ref`	`gcc_-march=native_-mtune=xscale_-O3`	20170802	20170718

Test failure

Implementation: crypto_scalarmult/curve25519/neon2
Compiler: gcc -funroll-loops -march=native -mtune=xscale -O2

error 111

Number of similar (compiler,implementation) pairs: 6, namely:

Compiler	Implementations
gcc -funroll-loops -march=native -mtune=xscale -O2	neon2
gcc -funroll-loops -march=native -mtune=xscale -O3	neon2
gcc -funroll-loops -march=native -mtune=xscale -Os	neon2
gcc -march=native -mtune=xscale -O2	neon2
gcc -march=native -mtune=xscale -O3	neon2
gcc -march=native -mtune=xscale -Os	neon2

Compiler output

Implementation: crypto_scalarmult/curve25519/donna_c64
Compiler: gcc -funroll-loops -march=native -mtune=xscale -O2

smult.c: smult.c:34:1: error: unable to emulate 'TI'
smult.c: typedef unsigned uint128_t __attribute__((mode(TI)));
smult.c: ^~~~~~~
smult.c: smult.c: In function 'fscalar_product':
smult.c: smult.c:76:49: warning: right shift count >= width of type [-Wshift-count-overflow]
smult.c: a = ((uint128_t) in[1]) * scalar + ((limb) (a >> 51));
smult.c: ^~
smult.c: smult.c:79:49: warning: right shift count >= width of type [-Wshift-count-overflow]
smult.c: a = ((uint128_t) in[2]) * scalar + ((limb) (a >> 51));
smult.c: ^~
smult.c: ...
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:

Compiler	Implementations
gcc -funroll-loops -march=native -mtune=xscale -O2	donna_c64
gcc -funroll-loops -march=native -mtune=xscale -O3	donna_c64
gcc -funroll-loops -march=native -mtune=xscale -Os	donna_c64
gcc -march=native -mtune=xscale -O2	donna_c64
gcc -march=native -mtune=xscale -O3	donna_c64
gcc -march=native -mtune=xscale -Os	donna_c64