Implementation notes: amd64, scw1b63b1, crypto_scalarmult/curve25519

Computer: scw1b63b1
Architecture: amd64
CPU ID: GenuineIntel-000506f1-0f8bfbff
SUPERCOP version: 20191017
Operation: crypto_scalarmult
Primitive: curve25519

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
956398	9009 0 0	28185 792 1576	`amd64-64`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
956590	8845 0 0	29868 816 1640	`amd64-64`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
957142	8836 0 0	27764 816 1640	`amd64-64`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
957424	9010 0 0	28113 792 1576	`amd64-64`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
957428	9010 0 0	27305 792 1576	`amd64-64`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
957522	8619 0 0	25971 784 1576	`amd64-64`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
958090	8829 0 0	27340 816 1640	`amd64-64`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
958536	9010 0 0	27305 792 1576	`amd64-64`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
965530	8584 0 0	25860 808 1608	`amd64-64`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
1190882	25816 0 0	46780 816 1640	`donna_c64`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
1252422	10899 0 0	29161 792 1576	`amd64-51`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
1252426	10899 0 0	30001 792 1576	`amd64-51`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
1252434	10899 0 0	29161 792 1576	`amd64-51`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
1252744	10516 0 0	27827 784 1576	`amd64-51`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
1253024	10898 0 0	30073 792 1576	`amd64-51`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
1254010	10807 0 0	31828 816 1640	`amd64-51`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
1254156	10791 0 0	29716 816 1640	`amd64-51`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
1254974	10809 0 0	29300 816 1640	`amd64-51`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
1255386	10493 0 0	27780 808 1608	`amd64-51`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
1278558	21007 0 0	39868 816 1640	`donna_c64`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
1288602	21362 0 0	38604 808 1608	`donna_c64`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
1327888	28229 0 0	47241 792 1576	`donna_c64`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
1331164	28229 0 0	46417 792 1576	`donna_c64`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
1331270	28229 0 0	46417 792 1576	`donna_c64`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
1337188	26556 0 0	43851 784 1576	`donna_c64`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
1349502	28199 0 0	47297 792 1576	`donna_c64`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
1402322	23946 0 0	42420 816 1640	`donna_c64`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
1558300	4736 0 0	25716 816 1640	`donna`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
1558538	4720 0 0	23604 816 1640	`donna`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
1586418	4813 0 0	23292 816 1640	`donna`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
1695840	4427 0 0	21684 808 1608	`donna`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
2371704	7993 0 0	26740 816 1640	`ref10`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
2372608	8009 0 0	28852 816 1640	`ref10`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
2500698	8185 0 0	26468 816 1640	`ref10`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
2503128	8982 0 0	27089 792 1576	`ref10`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
2503296	8982 0 0	27089 792 1576	`ref10`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
2504612	8982 0 0	27913 792 1576	`ref10`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
2505166	8588 0 0	25707 784 1576	`ref10`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
2508308	7809 0 0	24860 808 1608	`ref10`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
2599132	8951 0 0	27985 792 1576	`ref10`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
32897080	6415 0 0	24617 792 1576	`ref`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
33054174	6415 0 0	24617 792 1576	`ref`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
35822780	19826 0 0	38937 792 1576	`ref`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
35846928	19552 0 0	38577 792 1576	`ref`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
36729850	6132 0 0	27084 816 1640	`ref`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
36967808	3149 0 0	21684 816 1640	`ref`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
37021904	3588 0 0	22500 816 1640	`ref`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017
40801702	3095 0 0	20435 784 1576	`ref`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20191217	20191017
42827102	2715 0 0	20012 808 1608	`ref`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191217	20191017

Test failure

Implementation: donna
Security model: unknown
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

error 111

Number of similar (compiler,implementation) pairs: 14, namely:

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	sandy2x
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	sandy2x
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	sandy2x
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	sandy2x
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	sandy2x
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	sandy2x
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	sandy2x
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	sandy2x
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	sandy2x

Compiler output

Implementation: donna_c64
Security model: unknown
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

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:

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	donna_c64
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	donna_c64
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	donna_c64
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	donna_c64