Implementation notes: riscv64, hifiveunleashedriscv, crypto_scalarmult/nistp256

Computer: hifiveunleashedriscv
Architecture: riscv64
CPU ID: unknown CPU ID
SUPERCOP version: 20191221
Operation: crypto_scalarmult
Primitive: nistp256
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
1095067210238 30720 023707 31456 1560mj32gcc_-march=rv64gc_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2019123120191221
168059677692 30720 019837 31456 1560mj32gcc_-march=rv64gc_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2019123120191221
193288017426 30720 019087 31440 1560mj32gcc_-march=rv64gc_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2019123120191221
269331448976 30720 021039 31456 1560mj32gcc_-march=rv64gc_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE2019123120191221

Compiler output

Implementation: mj32
Security model: unknown
Compiler: gcc -march=rv64gc -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE
gep256.c: gep256.c: In function 'isneutral':
gep256.c: gep256.c:83:28: warning: 'sizeof' on array function parameter 'p' will return size of 'crypto_uint32 (*)[8]' {aka 'unsigned int (*)[8]'} [-Wsizeof-array-argument]
gep256.c: 83 | for (i = 0; i < sizeof p; ++i) x |= ((unsigned char *)p)[i];
gep256.c: | ^
gep256.c: gep256.c:78:29: note: declared here
gep256.c: 78 | static int isneutral(gep256 p) {
gep256.c: | ~~~~~~~^
gep256.c: gep256.c: In function 'isneutral_precomp':
gep256.c: gep256.c:92:28: warning: 'sizeof' on array function parameter 'p' will return size of 'crypto_uint32 (*)[8]' {aka 'unsigned int (*)[8]'} [-Wsizeof-array-argument]
gep256.c: 92 | for (i = 0; i < sizeof p; ++i) x |= ((unsigned char *)p)[i];
gep256.c: | ^
gep256.c: gep256.c:87:45: note: declared here
gep256.c: 87 | static int isneutral_precomp(gep256_precomp p) {
gep256.c: | ~~~~~~~~~~~~~~~^

Number of similar (compiler,implementation) pairs: 4, namely:
CompilerImplementations
gcc -march=rv64gc -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE mj32
gcc -march=rv64gc -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE mj32
gcc -march=rv64gc -O -fomit-frame-pointer -fwrapv -fPIC -fPIE mj32
gcc -march=rv64gc -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE mj32