Implementation notes: amd64, icelake2, crypto_sign/ed25519

Computer: icelake2
Architecture: amd64
CPU ID: GenuineIntel-000706e5-bfebfbff
SUPERCOP version: 20221005
Operation: crypto_sign
Primitive: ed25519

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
241013	78168 0 0	94876 788 1760	`amd64-51-30k`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
241630	85095 0 0	100428 780 1824	`amd64-51-30k`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20221004	20220506
241705	82293 0 0	101028 788 1824	`amd64-51-30k`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
241861	81450 0 0	99532 788 1760	`amd64-51-30k`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
242310	77361 0 0	95318 780 1824	`amd64-51-30k`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
244073	80745 0 0	99548 788 1792	`amd64-51-30k`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
244251	79793 0 0	93472 772 1792	`amd64-51-30k`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20221004	20220506
247494	81067 0 0	95172 780 1824	`amd64-51-30k`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20221004	20220506
247647	89257 0 0	106308 788 1760	`amd64-64-24k`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
247819	92212 0 0	111300 788 1792	`amd64-64-24k`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
249005	96430 0 0	115468 788 1824	`amd64-64-24k`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
250933	81696 0 0	96076 780 1824	`amd64-51-30k`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20221004	20220506
250950	96353 0 0	114412 788 1760	`amd64-64-24k`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
255753	88649 0 0	106814 780 1824	`amd64-64-24k`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
533383	56338 0 0	83102 780 1824	`ref10`	`clang_-march=native_-Os_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
545442	60258 0 0	85412 780 1824	`ref10`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20221004	20220506
545515	60258 0 0	87188 780 1824	`ref10`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20221004	20220506
551988	64826 0 0	94156 788 1824	`ref10`	`clang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
553981	62841 0 0	91084 788 1760	`ref10`	`clang_-mcpu=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
563928	61401 0 0	90724 788 1792	`ref10`	`clang_-march=native_-O2_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
568956	58549 0 0	81680 772 1792	`ref10`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20221004	20220506
587715	58925 0 0	84996 788 1760	`ref10`	`clang_-march=native_-O_-fomit-frame-pointer_-fwrapv_-Qunused-arguments_-fPIC_-fPIE`	20221004	20220506
589027	60018 0 0	84308 780 1824	`ref10`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20221004	20220506

Compiler output

Implementation: amd64-64-24k
Security model: constbranchindex
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

ge25519_scalarmult_base.c: ge25519_scalarmult_base.c: In function 'crypto_sign_ed25519_amd64_64_24k_constbranchindex_scalarmult_base':
ge25519_scalarmult_base.c: <command-line>: warning: 'crypto_sign_ed25519_amd64_64_24k_constbranchindex_sc25519_window4' accessing 85 bytes in a region of size 64 [-Wstringop-overflow=]
ge25519_scalarmult_base.c: <command-line>: note: in definition of macro 'CRYPTO_NAMESPACE'
ge25519_scalarmult_base.c: ge25519_scalarmult_base.c:24:3: note: in expansion of macro 'sc25519_window4'
ge25519_scalarmult_base.c: 24 | sc25519_window4(b,s);
ge25519_scalarmult_base.c: | ^~~~~~~~~~~~~~~
ge25519_scalarmult_base.c: <command-line>: note: referencing argument 1 of type 'signed char[85]'
ge25519_scalarmult_base.c: <command-line>: note: in definition of macro 'CRYPTO_NAMESPACE'
ge25519_scalarmult_base.c: ge25519_scalarmult_base.c:24:3: note: in expansion of macro 'sc25519_window4'
ge25519_scalarmult_base.c: 24 | sc25519_window4(b,s);
ge25519_scalarmult_base.c: | ^~~~~~~~~~~~~~~
ge25519_scalarmult_base.c: <command-line>: note: in a call to function 'crypto_sign_ed25519_amd64_64_24k_constbranchindex_sc25519_window4'
ge25519_scalarmult_base.c: <command-line>: note: in definition of macro 'CRYPTO_NAMESPACE'
ge25519_scalarmult_base.c: sc25519.h:58:6: note: in expansion of macro 'sc25519_window4'
ge25519_scalarmult_base.c: 58 | void sc25519_window4(signed char r[85], const sc25519 *s);
ge25519_scalarmult_base.c: | ^~~~~~~~~~~~~~~
ge25519_scalarmult_base.c: <command-line>: warning: 'crypto_sign_ed25519_amd64_64_24k_constbranchindex_sc25519_window4' accessing 85 bytes in a region of size 64 [-Wstringop-overflow=]
ge25519_scalarmult_base.c: <command-line>: note: in definition of macro 'CRYPTO_NAMESPACE'
ge25519_scalarmult_base.c: ge25519_scalarmult_base.c:24:3: note: in expansion of macro 'sc25519_window4'
ge25519_scalarmult_base.c: 24 | sc25519_window4(b,s);
ge25519_scalarmult_base.c: | ^~~~~~~~~~~~~~~
ge25519_scalarmult_base.c: <command-line>: note: referencing argument 1 of type 'signed char[85]'
ge25519_scalarmult_base.c: <command-line>: note: in definition of macro 'CRYPTO_NAMESPACE'
ge25519_scalarmult_base.c: ge25519_scalarmult_base.c:24:3: note: in expansion of macro 'sc25519_window4'
ge25519_scalarmult_base.c: 24 | sc25519_window4(b,s);
ge25519_scalarmult_base.c: ...

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-64-24k
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-64-24k
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-64-24k
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	amd64-64-24k

Compiler output

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

try.c: /usr/bin/ld: libcrypto_sign_ed25519.a(open.o):(.rodata+0x0): multiple definition of `crypto_sign_ed25519_ref_constbranchindex_ge25519_base'; libcrypto_sign_ed25519.a(keypair.o):(.rodata+0x0): first defined here
try.c: /usr/bin/ld: libcrypto_sign_ed25519.a(sign.o):(.rodata+0x0): multiple definition of `crypto_sign_ed25519_ref_constbranchindex_ge25519_base'; libcrypto_sign_ed25519.a(keypair.o):(.rodata+0x0): first defined here
try.c: /usr/bin/ld: libcrypto_sign_ed25519.a(ge25519.o):(.rodata+0x0): multiple definition of `crypto_sign_ed25519_ref_constbranchindex_ge25519_base'; libcrypto_sign_ed25519.a(keypair.o):(.rodata+0x0): first defined here
try.c: clang-14: 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	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

Compiler output

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

try.c: /usr/bin/ld: libcrypto_sign_ed25519.a(open.o):(.rodata+0x0): multiple definition of `crypto_sign_ed25519_ref_constbranchindex_ge25519_base'; libcrypto_sign_ed25519.a(keypair.o):(.rodata+0x0): first defined here
try.c: /usr/bin/ld: libcrypto_sign_ed25519.a(sign.o):(.rodata+0x0): multiple definition of `crypto_sign_ed25519_ref_constbranchindex_ge25519_base'; libcrypto_sign_ed25519.a(keypair.o):(.rodata+0x0): first defined here
try.c: /usr/bin/ld: libcrypto_sign_ed25519.a(ge25519.o):(.rodata+0x1aa80): multiple definition of `crypto_sign_ed25519_ref_constbranchindex_ge25519_base'; libcrypto_sign_ed25519.a(keypair.o):(.rodata+0x0): first defined here
try.c: collect2: error: ld returned 1 exit status

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

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