RISC-V: vectorized RandomX main loop

src/crypto/randomx/tests/riscv64_zicbop.s

@@ -0,0 +1,11 @@
+/* RISC-V - test if the prefetch instruction is present */
+
+.text
+.option arch, rv64gc_zicbop
+.global main
+
+main:
+	lla x5, main
+	prefetch.r (x5)
+	mv x10, x0
+	ret