35 lines
1.3 KiB
TableGen
35 lines
1.3 KiB
TableGen
|
//===-- RISCVInstrInfoZcmop.td -----------------------------*- tablegen -*-===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// This file describes the RISC-V instructions from the standard Compressed
|
||
|
|
// May-Be-Operations Extension (Zcmop).
|
||
|
|
// This version is still experimental as the 'Zcmop' extension hasn't been
|
||
|
|
// ratified yet. It is based on v0.2 of the specification.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
let hasSideEffects = 0, mayLoad = 0, mayStore = 0 in
|
||
|
|
class CMOPInst<bits<3> imm3, string opcodestr>
|
||
|
|
: RVInst16CI<0b011, 0b01, (outs), (ins), opcodestr, ""> {
|
||
|
|
let Inst{6-2} = 0;
|
||
|
|
let Inst{7} = 1;
|
||
|
|
let Inst{10-8} = imm3;
|
||
|
|
let Inst{12-11} = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// CMOP1, CMOP5 is used by Zicfiss.
|
||
|
|
let Predicates = [HasStdExtZcmop, NoHasStdExtZicfiss] in {
|
||
|
|
def CMOP1 : CMOPInst<0, "cmop.1">, Sched<[]>;
|
||
|
|
def CMOP5 : CMOPInst<2, "cmop.5">, Sched<[]>;
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach n = [3, 7, 9, 11, 13, 15] in {
|
||
|
|
let Predicates = [HasStdExtZcmop] in
|
||
|
|
def CMOP # n : CMOPInst<!srl(n, 1), "cmop." # n>, Sched<[]>;
|
||
|
|
}
|