1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
//===-- RISCVInstrInfoZimop.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
// May-Be-Operations Extension (Zimop).
// This version is still experimental as the 'Zimop' extension hasn't been
// ratified yet. It is based on v0.1 of the specification.
//
//===----------------------------------------------------------------------===//
class RVInstIMopr<bits<7> imm7, bits<5> imm5, bits<3> funct3, RISCVOpcode opcode,
dag outs, dag ins, string opcodestr, string argstr>
: RVInstIBase<funct3, opcode, outs, ins, opcodestr, argstr> {
let Inst{31} = imm7{6};
let Inst{30} = imm5{4};
let Inst{29-28} = imm7{5-4};
let Inst{27-26} = imm5{3-2};
let Inst{25-22} = imm7{3-0};
let Inst{21-20} = imm5{1-0};
}
class RVInstRMoprr<bits<4> imm4, bits<3> imm3, bits<3> funct3, RISCVOpcode opcode,
dag outs, dag ins, string opcodestr, string argstr>
: RVInstRBase<funct3, opcode, outs, ins, opcodestr, argstr> {
let Inst{31} = imm4{3};
let Inst{30} = imm3{2};
let Inst{29-28} = imm4{2-1};
let Inst{27-26} = imm3{1-0};
let Inst{25} = imm4{0};
}
let hasSideEffects = 0, mayLoad = 0, mayStore = 0 in
class RVMopr<bits<7> imm7, bits<5> imm5, bits<3> funct3,
RISCVOpcode opcode, string opcodestr>
: RVInstIMopr<imm7, imm5, funct3, opcode, (outs GPR:$rd), (ins GPR:$rs1),
opcodestr, "$rd, $rs1">;
let hasSideEffects = 0, mayLoad = 0, mayStore = 0 in
class RVMoprr<bits<4> imm4, bits<3> imm3, bits<3> funct3,
RISCVOpcode opcode, string opcodestr>
: RVInstRMoprr<imm4, imm3, funct3, opcode, (outs GPR:$rd), (ins GPR:$rs1, GPR:$rs2),
opcodestr, "$rd, $rs1, $rs2">;
foreach i = 0...31 in {
let Predicates = [HasStdExtZimop] in
def MOPR#i : RVMopr<0b1000111, i, 0b100, OPC_SYSTEM, "mop.r."#i>,
Sched<[]>;
}
foreach i = 0...7 in {
let Predicates = [HasStdExtZimop] in
def MOPRR#i : RVMoprr<0b1001, i, 0b100, OPC_SYSTEM, "mop.rr."#i>,
Sched<[]>;
}
|
