Implementation notes: amd64, luft, crypto_scalarmult/curve25519

Computer: luft
Architecture: amd64
CPU ID: GenuineIntel-000306d4-bfebfbff
SUPERCOP version: 20200702
Operation: crypto_scalarmult
Primitive: curve25519

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
1135592	26725 0 0	49152 4096 0	`donna_c64`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200710	20200702
1252308	23825 0 0	40960 4096 0	`donna_c64`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200710	20200702
1257852	21763 0 0	40960 4096 0	`donna_c64`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200710	20200702
1288328	22383 0 0	40960 4096 0	`donna_c64`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200710	20200702
1679040	30879 0 0	53248 4096 0	`donna_c64`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
1756168	30354 0 0	49152 4096 0	`donna_c64`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
1765548	32065 0 0	53248 4096 0	`donna_c64`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
1769424	32065 0 0	53248 4096 0	`donna_c64`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
1825124	32065 0 0	53248 4096 0	`donna_c64`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
2537756	9069 0 0	28672 4096 0	`ref10`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
2697844	7793 0 0	28672 4096 0	`ref10`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200710	20200702
2797646	8008 0 0	28672 4096 0	`ref10`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
2805016	8008 0 0	28672 4096 0	`ref10`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
2812312	9006 0 0	28672 4096 0	`ref10`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
2817080	8372 0 0	28672 4096 0	`ref10`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200710	20200702
2818112	7600 0 0	24576 4096 0	`ref10`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
2834776	8259 0 0	24576 4096 0	`ref10`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200710	20200702
2895924	8719 0 0	28672 4096 0	`ref10`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200710	20200702
33291572	5862 0 0	28672 4096 0	`ref`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200710	20200702
37377152	32921 0 0	53248 4096 0	`ref`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
37552060	36235 0 0	57344 4096 0	`ref`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
37795376	46092 0 0	65536 4096 0	`ref`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
41215684	46092 0 0	65536 4096 0	`ref`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
41905452	4038 0 0	24576 4096 0	`ref`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200710	20200702
42405996	3472 0 0	20480 4096 0	`ref`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200710	20200702
44631656	2762 0 0	20480 4096 0	`ref`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200710	20200702
46961272	3305 0 0	20480 4096 0	`ref`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200710	20200702

Compiler output

Implementation: amd64-51
Security model: unknown
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

consts.s: consts.s:2:17: error: unexpected token in '.section' directive
consts.s: .section .rodata
consts.s: ^

Number of similar (compiler,implementation) pairs: 18, namely:

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-51
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-51
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-51
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-51
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-51
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-51
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-51
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-51
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-51
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-64
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-64
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-64
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-64
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-64
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-64
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-64
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-64
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-64

Compiler output

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

try.c: Undefined symbols for architecture x86_64:
try.c: "_crypto_scalarmult_curve25519_donna_cmult", referenced from:
try.c: _crypto_scalarmult_curve25519_donna in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_fcontract", referenced from:
try.c: _crypto_scalarmult_curve25519_donna in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_fdifference_backwards", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_fmonty in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_fexpand", referenced from:
try.c: _crypto_scalarmult_curve25519_donna in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_fmul", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_fmonty in crypto_scalarmult_curve25519.a(smult.o)
try.c: _crypto_scalarmult_curve25519_donna in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_freduce_coefficients", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_fmonty in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_fscalar", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_fmonty in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_fsquare", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_fmonty in crypto_scalarmult_curve25519.a(smult.o)
try.c: _crypto_scalarmult_curve25519_donna in crypto_scalarmult_curve25519.a(smult.o)
try.c: ld: symbol(s) not found for architecture x86_64
try.c: clang: error: linker command failed with exit code 1 (use -v to see invocation)

Number of similar (compiler,implementation) pairs: 5, 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

Compiler output

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

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

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

Compiler output

Implementation: donna_c64
Security model: unknown
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

measure.c: ld: warning: could not create compact unwind for _crypto_stream_aes256ctr_dolbeau_aesenc_int_xor: register 3 saved somewhere other than in frame

Number of similar (compiler,implementation) pairs: 15, namely:

Compiler	Implementations
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna_c64
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna_c64
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna_c64
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna_c64
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna_c64
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	ref
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	ref
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	ref
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	ref
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	ref
clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	ref10
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	ref10
clang -march=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	ref10
clang -march=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	ref10
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	ref10

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: 149 | 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: 100 | 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: 70 | 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: 56 | 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: 41 | 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

Compiler output

Implementation: sandy2x
Security model: unknown
Compiler: clang -march=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

consts.S: consts.S:8:17: error: unexpected token in '.section' directive
consts.S: .section .rodata
consts.S: ^

Number of similar (compiler,implementation) pairs: 9, namely:

Compiler	Implementations
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