1 //===-- RISCVInstrInfoZcmop.td -----------------------------*- tablegen -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 // This file describes the RISC-V instructions from the standard Compressed
10 // May-Be-Operations Extension (Zcmop).
11 // This version is still experimental as the 'Zcmop' extension hasn't been
12 // ratified yet. It is based on v0.2 of the specification.
14 //===----------------------------------------------------------------------===//
16 let hasSideEffects = 0, mayLoad = 0, mayStore = 0 in
17 class CMOPInst<bits<3> imm3, string opcodestr>
18 : RVInst16CI<0b011, 0b01, (outs), (ins), opcodestr, ""> {
21 let Inst{10-8} = imm3;
25 // CMOP1, CMOP5 is used by Zicfiss.
26 let Predicates = [HasStdExtZcmop, NoHasStdExtZicfiss] in {
27 def CMOP1 : CMOPInst<0, "cmop.1">, Sched<[]>;
28 def CMOP5 : CMOPInst<2, "cmop.5">, Sched<[]>;
31 foreach n = [3, 7, 9, 11, 13, 15] in {
32 let Predicates = [HasStdExtZcmop] in
33 def CMOP # n : CMOPInst<!srl(n, 1), "cmop." # n>, Sched<[]>;