Implementation notes: riscv64, riscvunleashed000, crypto_sign/sflashv2

Computer: riscvunleashed000
Microarchitecture: riscv64; U54 (sifive,u54-mc)
Architecture: riscv64
CPU ID: unknown CPU ID
SUPERCOP version: 20240107
Operation: crypto_sign
Primitive: sflashv2

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
1334966	30400 0 0	45560 856 1568	`T:ref`	`gcc_-mcpu=sifive-u54_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20240122	20231222
1392754	29636 0 0	43156 856 1568	`T:ref`	`gcc_-mcpu=sifive-u54_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20240122	20231222
1475894	28018 0 0	40720 840 1568	`T:ref`	`gcc_-mcpu=sifive-u54_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20240122	20231222
1574000	28906 0 0	42234 856 1568	`T:ref`	`gcc_-mcpu=sifive-u54_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20240122	20231222

Compiler output

Implementation: T:ref
Security model: timingleaks
Compiler: clang -march=rv64imafdc -mtune=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE

lib_flash.c: lib_flash.c:409:50: warning: '/*' within block comment [-Wcomment]
lib_flash.c: init_table_flash(CK->M,/*CK->I,*/CK->M1/*,CK->M2/* /*,CK->M3*/);
lib_flash.c: ^
lib_flash.c: lib_flash.c:409:53: warning: '/*' within block comment [-Wcomment]
lib_flash.c: init_table_flash(CK->M,/*CK->I,*/CK->M1/*,CK->M2/* /*,CK->M3*/);
lib_flash.c: ^
lib_flash.c: lib_flash.c:690:3: warning: '/*' within block comment [-Wcomment]
lib_flash.c: /*mis <E0> la puissance 2^7^22 de tmp
lib_flash.c: ^
lib_flash.c: lib_flash.c:692:3: warning: '/*' within block comment [-Wcomment]
lib_flash.c: /*
lib_flash.c: ^
lib_flash.c: lib_flash.c:695:4: warning: '/*' within block comment [-Wcomment]
lib_flash.c: /* inversion affine de S*/
lib_flash.c: ^
lib_flash.c: lib_flash.c:726:14: warning: 'size' argument to memset is '0'; did you mean to transpose the last two arguments? [-Wmemset-transposed-args]
lib_flash.c: memset(V,33,0);
lib_flash.c: ^
lib_flash.c: lib_flash.c:726:14: note: parenthesize the third argument to silence
lib_flash.c: lib_flash.c:783:14: warning: 'size' argument to memset is '0'; did you mean to transpose the last two arguments? [-Wmemset-transposed-args]
lib_flash.c: memset(V,33,0);
lib_flash.c: ^
lib_flash.c: lib_flash.c:783:14: note: parenthesize the third argument to silence
lib_flash.c: lib_flash.c:910:34: warning: illegal character encoding in string literal [-Winvalid-source-encoding]
lib_flash.c: printf("Erreur de fichier de cl<82> publique: '%s'\n",fichier);
lib_flash.c: ...

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

Compiler	Implementations
clang -march=rv64imafdc -mtune=native -O2 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:ref
clang -march=rv64imafdc -mtune=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:ref
clang -march=rv64imafdc -mtune=native -O -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:ref
clang -march=rv64imafdc -mtune=native -Os -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:ref
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE	T:ref

Compiler output

Implementation: T:ref
Security model: timingleaks
Compiler: gcc -mcpu=sifive-u54 -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE

lib_flash.c: lib_flash.c: In function 'Flash_load_public_key':
lib_flash.c: lib_flash.c:913:9: warning: ignoring return value of 'fread' declared with attribute 'warn_unused_result' [-Wunused-result]
lib_flash.c: 913 | fread(key,1,19266,in);
lib_flash.c: | ^~~~~~~~~~~~~~~~~~~~~
lib_flash.c: lib_flash.c: In function 'Flash_load_private_key':
lib_flash.c: lib_flash.c:1019:9: warning: ignoring return value of 'fread' declared with attribute 'warn_unused_result' [-Wunused-result]
lib_flash.c: 1019 | fread(key,1,2823,in);
lib_flash.c: | ^~~~~~~~~~~~~~~~~~~~

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

Compiler	Implementations
gcc -mcpu=sifive-u54 -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:ref
gcc -mcpu=sifive-u54 -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:ref
gcc -mcpu=sifive-u54 -O -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:ref
gcc -mcpu=sifive-u54 -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE	T:ref