[riscv] auipc, srli, srai, sll, srl, sra, slliw, srliw, sraiw
[riscv] auipc, srli, srai, sll, srl, sra, slliw, srliw, sraiw

futurecore/pydgin,cornell-brg/pydgin,cornell-brg/pydgin,futurecore/pydgin,futurecore/pydgin,cornell-brg/pydgin,cornell-brg/pydgin,futurecore/pydgin