[libre-riscv-dev] sv spike simulator

[Luke Kenneth Casson Leighton]

https://git.libre-riscv.org/?p=riscv-tests.git;a=commitdiff;h=a924a13af9980c1c6f2c90b66856f9d20bf1daa3

woo!  it worked!  next one, predication, to see if
single-bit-per-subgroup works.

l.