Implementation notes: amd64, icelake, crypto_scalarmult/curve25519

Computer: icelake
Architecture: amd64
CPU ID: GenuineIntel-000706e5-bfebfbff
SUPERCOP version: 20200826
Operation: crypto_scalarmult
Primitive: curve25519

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
605862	26725 0 0	57344 4096 0	`donna_c64`	`opt-local-bin-gcc_-march=icelake-client_-mtune=icelake-client_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200826	20200826
616459	21763 0 0	49152 4096 0	`donna_c64`	`opt-local-bin-gcc_-march=icelake-client_-mtune=icelake-client_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200826	20200826
617646	22383 0 0	49152 4096 0	`donna_c64`	`opt-local-bin-gcc_-march=icelake-client_-mtune=icelake-client_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200826	20200826
798273	31584 0 0	61440 4096 0	`donna_c64`	`clang_-march=icelake-client_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200826	20200826
804868	31584 0 0	61440 4096 0	`donna_c64`	`clang_-march=icelake-client_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200826	20200826
851786	29393 0 0	53248 4096 0	`donna_c64`	`clang_-march=icelake-client_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200826	20200826
1294734	7794 0 0	36864 4096 0	`ref10`	`opt-local-bin-gcc_-march=icelake-client_-mtune=icelake-client_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200826	20200826
1381286	8372 0 0	36864 4096 0	`ref10`	`opt-local-bin-gcc_-march=icelake-client_-mtune=icelake-client_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200826	20200826
1420633	7802 0 0	32768 4096 0	`ref10`	`clang_-march=icelake-client_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200826	20200826
1421609	9221 0 0	36864 4096 0	`ref10`	`clang_-march=icelake-client_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200826	20200826
1449727	8223 0 0	36864 4096 0	`ref10`	`clang_-march=icelake-client_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200826	20200826
1471746	8259 0 0	32768 4096 0	`ref10`	`opt-local-bin-gcc_-march=icelake-client_-mtune=icelake-client_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200826	20200826
16498723	5957 0 0	36864 4096 0	`ref`	`opt-local-bin-gcc_-march=icelake-client_-mtune=icelake-client_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200826	20200826
18959074	4166 0 0	32768 4096 0	`ref`	`opt-local-bin-gcc_-march=icelake-client_-mtune=icelake-client_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200826	20200826
20216760	2782 0 0	28672 4096 0	`ref`	`opt-local-bin-gcc_-march=icelake-client_-mtune=icelake-client_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20200826	20200826
21076175	48296 0 0	77824 4096 0	`ref`	`clang_-march=icelake-client_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200826	20200826
21478347	38155 0 0	65536 4096 0	`ref`	`clang_-march=icelake-client_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200826	20200826
22509564	3326 0 0	28672 4096 0	`ref`	`clang_-march=icelake-client_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20200826	20200826

Compiler output

Implementation: amd64-51
Security model: constbranchindex
Compiler: clang -march=icelake-client -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: 12, namely:

Compiler	Implementations
clang -march=icelake-client -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-51
clang -march=icelake-client -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-51
clang -march=icelake-client -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-51
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-51
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-51
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-51
clang -march=icelake-client -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-64
clang -march=icelake-client -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-64
clang -march=icelake-client -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	amd64-64
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-64
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-64
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-64

Compiler output

Implementation: donna
Security model: constbranchindex
Compiler: clang -march=icelake-client -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

try.c: Undefined symbols for architecture x86_64:
try.c: "_crypto_scalarmult_curve25519_donna_constbranchindex_cmult", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_constbranchindex in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_constbranchindex_fcontract", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_constbranchindex in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_constbranchindex_fdifference_backwards", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_constbranchindex_fmonty in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_constbranchindex_fexpand", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_constbranchindex in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_constbranchindex_fmul", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_constbranchindex_fmonty in crypto_scalarmult_curve25519.a(smult.o)
try.c: _crypto_scalarmult_curve25519_donna_constbranchindex in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_constbranchindex_freduce_coefficients", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_constbranchindex_fmonty in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_constbranchindex_fscalar", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_constbranchindex_fmonty in crypto_scalarmult_curve25519.a(smult.o)
try.c: "_crypto_scalarmult_curve25519_donna_constbranchindex_fsquare", referenced from:
try.c: _crypto_scalarmult_curve25519_donna_constbranchindex_fmonty in crypto_scalarmult_curve25519.a(smult.o)
try.c: _crypto_scalarmult_curve25519_donna_constbranchindex 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: 3, namely:

Compiler	Implementations
clang -march=icelake-client -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna
clang -march=icelake-client -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna
clang -march=icelake-client -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	donna

Compiler output

Implementation: donna
Security model: constbranchindex
Compiler: opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

Number of similar (compiler,implementation) pairs: 3, namely:

Compiler	Implementations
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	donna
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	donna
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	donna

Compiler output

Implementation: donna_c64
Security model: constbranchindex
Compiler: clang -march=icelake-client -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_constbranchindex_xor: register 3 saved somewhere other than in frame

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

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

Compiler output

Implementation: sandy2x
Security model: constbranchindex
Compiler: clang -march=icelake-client -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: 6, namely:

Compiler	Implementations
clang -march=icelake-client -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	sandy2x
clang -march=icelake-client -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	sandy2x
clang -march=icelake-client -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	sandy2x
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	sandy2x
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	sandy2x
opt-local-bin-gcc -march=icelake-client -mtune=icelake-client -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	sandy2x