Implementation notes: riscv64, hifiveunleashedriscv, crypto_dh/k277mon

Computer: hifiveunleashedriscv
Architecture: riscv64
CPU ID: unknown CPU ID
SUPERCOP version: 20191221
Operation: crypto_dh
Primitive: k277mon

Compiler output

Implementation: ref
Security model: unknown
Compiler: gcc -march=rv64gc -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE
dh.c: In file included from dh.c:2:
dh.c: lib.h:2:9: fatal error: x86intrin.h: No such file or directory
dh.c: 2 | #include<x86intrin.h>
dh.c: | ^~~~~~~~~~~~~
dh.c: compilation terminated.

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