xref: /freebsd/contrib/llvm-project/llvm/lib/Target/Mips/MipsMTInstrInfo.td (revision 0b57cec536236d46e3dba9bd041533462f33dbb7) 
1//===-- MipsMTInstrInfo.td - Mips MT Instruction Infos -----*- tablegen -*-===//
2//
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
6//
7//===----------------------------------------------------------------------===//
8//
9// This file describes the MIPS MT ASE as defined by MD00378 1.12.
10//
11// TODO: Add support for the microMIPS encodings for the MT ASE and add the
12//       instruction mappings.
13//
14//===----------------------------------------------------------------------===//
15
16//===----------------------------------------------------------------------===//
17// MIPS MT Instruction Encodings
18//===----------------------------------------------------------------------===//
19
20class DMT_ENC : COP0_MFMC0_MT<FIELD5_1_DMT_EMT, FIELD5_2_DMT_EMT,
21                              OPCODE_SC_D>;
22
23class EMT_ENC : COP0_MFMC0_MT<FIELD5_1_DMT_EMT, FIELD5_2_DMT_EMT,
24                              OPCODE_SC_E>;
25
26class DVPE_ENC : COP0_MFMC0_MT<FIELD5_1_2_DVPE_EVPE, FIELD5_1_2_DVPE_EVPE,
27                               OPCODE_SC_D>;
28
29class EVPE_ENC : COP0_MFMC0_MT<FIELD5_1_2_DVPE_EVPE, FIELD5_1_2_DVPE_EVPE,
30                               OPCODE_SC_E>;
31
32class FORK_ENC : SPECIAL3_MT_FORK;
33
34class YIELD_ENC : SPECIAL3_MT_YIELD;
35
36class MFTR_ENC : COP0_MFTTR_MT<FIELD5_MFTR>;
37
38class MTTR_ENC : COP0_MFTTR_MT<FIELD5_MTTR>;
39
40//===----------------------------------------------------------------------===//
41// MIPS MT Instruction Descriptions
42//===----------------------------------------------------------------------===//
43
44class MT_1R_DESC_BASE<string instr_asm, InstrItinClass Itin = NoItinerary> {
45  dag OutOperandList = (outs GPR32Opnd:$rt);
46  dag InOperandList = (ins);
47  string AsmString = !strconcat(instr_asm, "\t$rt");
48  list<dag> Pattern = [];
49  InstrItinClass Itinerary = Itin;
50}
51
52class MFTR_DESC {
53  dag OutOperandList = (outs GPR32Opnd:$rd);
54  dag InOperandList = (ins GPR32Opnd:$rt, uimm1:$u, uimm3:$sel, uimm1:$h);
55  string AsmString = "mftr\t$rd, $rt, $u, $sel, $h";
56  list<dag> Pattern = [];
57  InstrItinClass Itinerary = II_MFTR;
58}
59
60class MTTR_DESC {
61  dag OutOperandList = (outs GPR32Opnd:$rd);
62  dag InOperandList = (ins GPR32Opnd:$rt, uimm1:$u, uimm3:$sel, uimm1:$h);
63  string AsmString = "mttr\t$rt, $rd, $u, $sel, $h";
64  list<dag> Pattern = [];
65  InstrItinClass Itinerary = II_MTTR;
66}
67
68class FORK_DESC {
69  dag OutOperandList = (outs GPR32Opnd:$rs, GPR32Opnd:$rd);
70  dag InOperandList = (ins GPR32Opnd:$rt);
71  string AsmString = "fork\t$rd, $rs, $rt";
72  list<dag> Pattern = [];
73  InstrItinClass Itinerary = II_FORK;
74}
75
76class YIELD_DESC {
77  dag OutOperandList = (outs GPR32Opnd:$rd);
78  dag InOperandList = (ins GPR32Opnd:$rs);
79  string AsmString = "yield\t$rd, $rs";
80  list<dag> Pattern = [];
81  InstrItinClass Itinerary = II_YIELD;
82}
83
84class DMT_DESC : MT_1R_DESC_BASE<"dmt", II_DMT>;
85
86class EMT_DESC : MT_1R_DESC_BASE<"emt", II_EMT>;
87
88class DVPE_DESC : MT_1R_DESC_BASE<"dvpe", II_DVPE>;
89
90class EVPE_DESC : MT_1R_DESC_BASE<"evpe", II_EVPE>;
91
92//===----------------------------------------------------------------------===//
93// MIPS MT Instruction Definitions
94//===----------------------------------------------------------------------===//
95let hasSideEffects = 1, isNotDuplicable = 1,
96    AdditionalPredicates = [NotInMicroMips] in {
97  def DMT : DMT_ENC, DMT_DESC, ASE_MT;
98
99  def EMT : EMT_ENC, EMT_DESC, ASE_MT;
100
101  def DVPE : DVPE_ENC, DVPE_DESC, ASE_MT;
102
103  def EVPE : EVPE_ENC, EVPE_DESC, ASE_MT;
104
105  def FORK : FORK_ENC, FORK_DESC, ASE_MT;
106
107  def YIELD : YIELD_ENC, YIELD_DESC, ASE_MT;
108
109  def MFTR : MFTR_ENC, MFTR_DESC, ASE_MT;
110
111  def MTTR : MTTR_ENC, MTTR_DESC, ASE_MT;
112}
113
114//===----------------------------------------------------------------------===//
115// MIPS MT Pseudo Instructions - used to support mtfr & mttr aliases.
116//===----------------------------------------------------------------------===//
117def MFTC0 : MipsAsmPseudoInst<(outs GPR32Opnd:$rd), (ins COP0Opnd:$rt,
118                                                        uimm3:$sel),
119                              "mftc0 $rd, $rt, $sel">, ASE_MT;
120
121def MFTGPR : MipsAsmPseudoInst<(outs GPR32Opnd:$rd), (ins GPR32Opnd:$rt,
122                                                          uimm3:$sel),
123                               "mftgpr $rd, $rt">, ASE_MT;
124
125def MFTLO : MipsAsmPseudoInst<(outs GPR32Opnd:$rt), (ins ACC64DSPOpnd:$ac),
126                              "mftlo $rt, $ac">, ASE_MT;
127
128def MFTHI : MipsAsmPseudoInst<(outs GPR32Opnd:$rt), (ins ACC64DSPOpnd:$ac),
129                              "mfthi $rt, $ac">, ASE_MT;
130
131def MFTACX : MipsAsmPseudoInst<(outs GPR32Opnd:$rt), (ins ACC64DSPOpnd:$ac),
132                               "mftacx $rt, $ac">, ASE_MT;
133
134def MFTDSP : MipsAsmPseudoInst<(outs GPR32Opnd:$rt), (ins),
135                               "mftdsp $rt">, ASE_MT;
136
137def MFTC1 : MipsAsmPseudoInst<(outs GPR32Opnd:$rt), (ins FGR32Opnd:$ft),
138                              "mftc1 $rt, $ft">, ASE_MT;
139
140def MFTHC1 : MipsAsmPseudoInst<(outs GPR32Opnd:$rt), (ins FGR32Opnd:$ft),
141                               "mfthc1 $rt, $ft">, ASE_MT;
142
143def CFTC1 : MipsAsmPseudoInst<(outs GPR32Opnd:$rt), (ins FGRCCOpnd:$ft),
144                              "cftc1 $rt, $ft">, ASE_MT;
145
146
147def MTTC0 : MipsAsmPseudoInst<(outs COP0Opnd:$rd), (ins GPR32Opnd:$rt,
148                                                        uimm3:$sel),
149                              "mttc0 $rt, $rd, $sel">, ASE_MT;
150
151def MTTGPR : MipsAsmPseudoInst<(outs GPR32Opnd:$rt), (ins GPR32Opnd:$rd),
152                               "mttgpr $rd, $rt">, ASE_MT;
153
154def MTTLO : MipsAsmPseudoInst<(outs ACC64DSPOpnd:$ac), (ins GPR32Opnd:$rt),
155                              "mttlo $rt, $ac">, ASE_MT;
156
157def MTTHI : MipsAsmPseudoInst<(outs ACC64DSPOpnd:$ac), (ins GPR32Opnd:$rt),
158                              "mtthi $rt, $ac">, ASE_MT;
159
160def MTTACX : MipsAsmPseudoInst<(outs ACC64DSPOpnd:$ac), (ins GPR32Opnd:$rt),
161                               "mttacx $rt, $ac">, ASE_MT;
162
163def MTTDSP : MipsAsmPseudoInst<(outs), (ins GPR32Opnd:$rt),
164                               "mttdsp $rt">, ASE_MT;
165
166def MTTC1 : MipsAsmPseudoInst<(outs FGR32Opnd:$ft), (ins GPR32Opnd:$rt),
167                              "mttc1 $rt, $ft">, ASE_MT;
168
169def MTTHC1 : MipsAsmPseudoInst<(outs FGR32Opnd:$ft), (ins GPR32Opnd:$rt),
170                               "mtthc1 $rt, $ft">, ASE_MT;
171
172def CTTC1 : MipsAsmPseudoInst<(outs FGRCCOpnd:$ft), (ins GPR32Opnd:$rt),
173                              "cttc1 $rt, $ft">, ASE_MT;
174
175//===----------------------------------------------------------------------===//
176// MIPS MT Instruction Definitions
177//===----------------------------------------------------------------------===//
178
179let AdditionalPredicates = [NotInMicroMips] in {
180  def : MipsInstAlias<"dmt", (DMT ZERO), 1>, ASE_MT;
181
182  def : MipsInstAlias<"emt", (EMT ZERO), 1>, ASE_MT;
183
184  def : MipsInstAlias<"dvpe", (DVPE ZERO), 1>, ASE_MT;
185
186  def : MipsInstAlias<"evpe", (EVPE ZERO), 1>, ASE_MT;
187
188  def : MipsInstAlias<"yield $rs", (YIELD ZERO, GPR32Opnd:$rs), 1>, ASE_MT;
189
190  def : MipsInstAlias<"mftc0 $rd, $rt", (MFTC0 GPR32Opnd:$rd, COP0Opnd:$rt, 0),
191                      1>, ASE_MT;
192
193  def : MipsInstAlias<"mftlo $rt", (MFTLO GPR32Opnd:$rt, AC0), 1>, ASE_MT;
194
195  def : MipsInstAlias<"mfthi $rt", (MFTHI GPR32Opnd:$rt, AC0), 1>, ASE_MT;
196
197  def : MipsInstAlias<"mftacx $rt", (MFTACX GPR32Opnd:$rt, AC0), 1>, ASE_MT;
198
199  def : MipsInstAlias<"mttc0 $rd, $rt", (MTTC0 COP0Opnd:$rt, GPR32Opnd:$rd, 0),
200                      1>, ASE_MT;
201
202  def : MipsInstAlias<"mttlo $rt", (MTTLO AC0, GPR32Opnd:$rt), 1>, ASE_MT;
203
204  def : MipsInstAlias<"mtthi $rt", (MTTHI AC0, GPR32Opnd:$rt), 1>, ASE_MT;
205
206  def : MipsInstAlias<"mttacx $rt", (MTTACX AC0, GPR32Opnd:$rt), 1>, ASE_MT;
207}
208