1 //===-- MipsRegisterInfo.td - Mips Register defs -----------*- tablegen -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 //===----------------------------------------------------------------------===//
11 // Declarations that describe the MIPS register file
12 //===----------------------------------------------------------------------===//
13 let Namespace = "Mips" in {
14 def sub_fpeven : SubRegIndex<32>;
15 def sub_fpodd : SubRegIndex<32, 32>;
16 def sub_32 : SubRegIndex<32>;
17 def sub_lo : SubRegIndex<32>;
18 def sub_hi : SubRegIndex<32, 32>;
19 def sub_dsp16_19 : SubRegIndex<4, 16>;
20 def sub_dsp20 : SubRegIndex<1, 20>;
21 def sub_dsp21 : SubRegIndex<1, 21>;
22 def sub_dsp22 : SubRegIndex<1, 22>;
23 def sub_dsp23 : SubRegIndex<1, 23>;
27 bit isAllocatable = 0;
30 // We have banks of 32 registers each.
31 class MipsReg<bits<16> Enc, string n> : Register<n> {
33 let Namespace = "Mips";
36 class MipsRegWithSubRegs<bits<16> Enc, string n, list<Register> subregs>
37 : RegisterWithSubRegs<n, subregs> {
39 let Namespace = "Mips";
43 class MipsGPRReg<bits<16> Enc, string n> : MipsReg<Enc, n>;
45 // Mips 64-bit CPU Registers
46 class Mips64GPRReg<bits<16> Enc, string n, list<Register> subregs>
47 : MipsRegWithSubRegs<Enc, n, subregs> {
48 let SubRegIndices = [sub_32];
51 // Mips 32-bit FPU Registers
52 class FPR<bits<16> Enc, string n> : MipsReg<Enc, n>;
54 // Mips 64-bit (aliased) FPU Registers
55 class AFPR<bits<16> Enc, string n, list<Register> subregs>
56 : MipsRegWithSubRegs<Enc, n, subregs> {
57 let SubRegIndices = [sub_fpeven, sub_fpodd];
58 let CoveredBySubRegs = 1;
61 class AFPR64<bits<16> Enc, string n, list<Register> subregs>
62 : MipsRegWithSubRegs<Enc, n, subregs> {
63 let SubRegIndices = [sub_32];
66 // Accumulator Registers
67 class ACC<bits<16> Enc, string n, list<Register> subregs>
68 : MipsRegWithSubRegs<Enc, n, subregs> {
69 let SubRegIndices = [sub_lo, sub_hi];
70 let CoveredBySubRegs = 1;
73 // Mips Hardware Registers
74 class HWR<bits<16> Enc, string n> : MipsReg<Enc, n>;
76 //===----------------------------------------------------------------------===//
78 //===----------------------------------------------------------------------===//
80 let Namespace = "Mips" in {
81 // General Purpose Registers
82 def ZERO : MipsGPRReg< 0, "zero">, DwarfRegNum<[0]>;
83 def AT : MipsGPRReg< 1, "1">, DwarfRegNum<[1]>;
84 def V0 : MipsGPRReg< 2, "2">, DwarfRegNum<[2]>;
85 def V1 : MipsGPRReg< 3, "3">, DwarfRegNum<[3]>;
86 def A0 : MipsGPRReg< 4, "4">, DwarfRegNum<[4]>;
87 def A1 : MipsGPRReg< 5, "5">, DwarfRegNum<[5]>;
88 def A2 : MipsGPRReg< 6, "6">, DwarfRegNum<[6]>;
89 def A3 : MipsGPRReg< 7, "7">, DwarfRegNum<[7]>;
90 def T0 : MipsGPRReg< 8, "8">, DwarfRegNum<[8]>;
91 def T1 : MipsGPRReg< 9, "9">, DwarfRegNum<[9]>;
92 def T2 : MipsGPRReg< 10, "10">, DwarfRegNum<[10]>;
93 def T3 : MipsGPRReg< 11, "11">, DwarfRegNum<[11]>;
94 def T4 : MipsGPRReg< 12, "12">, DwarfRegNum<[12]>;
95 def T5 : MipsGPRReg< 13, "13">, DwarfRegNum<[13]>;
96 def T6 : MipsGPRReg< 14, "14">, DwarfRegNum<[14]>;
97 def T7 : MipsGPRReg< 15, "15">, DwarfRegNum<[15]>;
98 def S0 : MipsGPRReg< 16, "16">, DwarfRegNum<[16]>;
99 def S1 : MipsGPRReg< 17, "17">, DwarfRegNum<[17]>;
100 def S2 : MipsGPRReg< 18, "18">, DwarfRegNum<[18]>;
101 def S3 : MipsGPRReg< 19, "19">, DwarfRegNum<[19]>;
102 def S4 : MipsGPRReg< 20, "20">, DwarfRegNum<[20]>;
103 def S5 : MipsGPRReg< 21, "21">, DwarfRegNum<[21]>;
104 def S6 : MipsGPRReg< 22, "22">, DwarfRegNum<[22]>;
105 def S7 : MipsGPRReg< 23, "23">, DwarfRegNum<[23]>;
106 def T8 : MipsGPRReg< 24, "24">, DwarfRegNum<[24]>;
107 def T9 : MipsGPRReg< 25, "25">, DwarfRegNum<[25]>;
108 def K0 : MipsGPRReg< 26, "26">, DwarfRegNum<[26]>;
109 def K1 : MipsGPRReg< 27, "27">, DwarfRegNum<[27]>;
110 def GP : MipsGPRReg< 28, "gp">, DwarfRegNum<[28]>;
111 def SP : MipsGPRReg< 29, "sp">, DwarfRegNum<[29]>;
112 def FP : MipsGPRReg< 30, "fp">, DwarfRegNum<[30]>;
113 def RA : MipsGPRReg< 31, "ra">, DwarfRegNum<[31]>;
115 // General Purpose 64-bit Registers
116 def ZERO_64 : Mips64GPRReg< 0, "zero", [ZERO]>, DwarfRegNum<[0]>;
117 def AT_64 : Mips64GPRReg< 1, "1", [AT]>, DwarfRegNum<[1]>;
118 def V0_64 : Mips64GPRReg< 2, "2", [V0]>, DwarfRegNum<[2]>;
119 def V1_64 : Mips64GPRReg< 3, "3", [V1]>, DwarfRegNum<[3]>;
120 def A0_64 : Mips64GPRReg< 4, "4", [A0]>, DwarfRegNum<[4]>;
121 def A1_64 : Mips64GPRReg< 5, "5", [A1]>, DwarfRegNum<[5]>;
122 def A2_64 : Mips64GPRReg< 6, "6", [A2]>, DwarfRegNum<[6]>;
123 def A3_64 : Mips64GPRReg< 7, "7", [A3]>, DwarfRegNum<[7]>;
124 def T0_64 : Mips64GPRReg< 8, "8", [T0]>, DwarfRegNum<[8]>;
125 def T1_64 : Mips64GPRReg< 9, "9", [T1]>, DwarfRegNum<[9]>;
126 def T2_64 : Mips64GPRReg< 10, "10", [T2]>, DwarfRegNum<[10]>;
127 def T3_64 : Mips64GPRReg< 11, "11", [T3]>, DwarfRegNum<[11]>;
128 def T4_64 : Mips64GPRReg< 12, "12", [T4]>, DwarfRegNum<[12]>;
129 def T5_64 : Mips64GPRReg< 13, "13", [T5]>, DwarfRegNum<[13]>;
130 def T6_64 : Mips64GPRReg< 14, "14", [T6]>, DwarfRegNum<[14]>;
131 def T7_64 : Mips64GPRReg< 15, "15", [T7]>, DwarfRegNum<[15]>;
132 def S0_64 : Mips64GPRReg< 16, "16", [S0]>, DwarfRegNum<[16]>;
133 def S1_64 : Mips64GPRReg< 17, "17", [S1]>, DwarfRegNum<[17]>;
134 def S2_64 : Mips64GPRReg< 18, "18", [S2]>, DwarfRegNum<[18]>;
135 def S3_64 : Mips64GPRReg< 19, "19", [S3]>, DwarfRegNum<[19]>;
136 def S4_64 : Mips64GPRReg< 20, "20", [S4]>, DwarfRegNum<[20]>;
137 def S5_64 : Mips64GPRReg< 21, "21", [S5]>, DwarfRegNum<[21]>;
138 def S6_64 : Mips64GPRReg< 22, "22", [S6]>, DwarfRegNum<[22]>;
139 def S7_64 : Mips64GPRReg< 23, "23", [S7]>, DwarfRegNum<[23]>;
140 def T8_64 : Mips64GPRReg< 24, "24", [T8]>, DwarfRegNum<[24]>;
141 def T9_64 : Mips64GPRReg< 25, "25", [T9]>, DwarfRegNum<[25]>;
142 def K0_64 : Mips64GPRReg< 26, "26", [K0]>, DwarfRegNum<[26]>;
143 def K1_64 : Mips64GPRReg< 27, "27", [K1]>, DwarfRegNum<[27]>;
144 def GP_64 : Mips64GPRReg< 28, "gp", [GP]>, DwarfRegNum<[28]>;
145 def SP_64 : Mips64GPRReg< 29, "sp", [SP]>, DwarfRegNum<[29]>;
146 def FP_64 : Mips64GPRReg< 30, "fp", [FP]>, DwarfRegNum<[30]>;
147 def RA_64 : Mips64GPRReg< 31, "ra", [RA]>, DwarfRegNum<[31]>;
149 /// Mips Single point precision FPU Registers
151 def F#I : FPR<I, "f"#I>, DwarfRegNum<[!add(I, 32)]>;
153 /// Mips Double point precision FPU Registers (aliased
154 /// with the single precision to hold 64 bit values)
156 def D#I : AFPR<!shl(I, 1), "f"#!shl(I, 1),
157 [!cast<FPR>("F"#!shl(I, 1)),
158 !cast<FPR>("F"#!add(!shl(I, 1), 1))]>;
160 /// Mips Double point precision FPU Registers in MFP64 mode.
162 def D#I#_64 : AFPR64<I, "f"#I, [!cast<FPR>("F"#I)]>,
163 DwarfRegNum<[!add(I, 32)]>;
166 def HI : Register<"ac0">, DwarfRegNum<[64]>;
167 def HI1 : Register<"ac1">, DwarfRegNum<[176]>;
168 def HI2 : Register<"ac2">, DwarfRegNum<[178]>;
169 def HI3 : Register<"ac3">, DwarfRegNum<[180]>;
170 def LO : Register<"ac0">, DwarfRegNum<[65]>;
171 def LO1 : Register<"ac1">, DwarfRegNum<[177]>;
172 def LO2 : Register<"ac2">, DwarfRegNum<[179]>;
173 def LO3 : Register<"ac3">, DwarfRegNum<[181]>;
175 let SubRegIndices = [sub_32] in {
176 def HI64 : RegisterWithSubRegs<"hi", [HI]>;
177 def LO64 : RegisterWithSubRegs<"lo", [LO]>;
180 // FP control registers.
182 def FCR#I : MipsReg<#I, ""#I>;
184 // FP condition code registers.
186 def FCC#I : MipsReg<#I, "fcc"#I>;
189 def PC : Register<"pc">;
191 // Hardware register $29
192 def HWR29 : MipsReg<29, "29">;
195 def AC0 : ACC<0, "ac0", [LO, HI]>;
196 def AC1 : ACC<1, "ac1", [LO1, HI1]>;
197 def AC2 : ACC<2, "ac2", [LO2, HI2]>;
198 def AC3 : ACC<3, "ac3", [LO3, HI3]>;
200 def AC0_64 : ACC<0, "ac0", [LO64, HI64]>;
202 // DSP-ASE control register fields.
203 def DSPPos : Register<"">;
204 def DSPSCount : Register<"">;
205 def DSPCarry : Register<"">;
206 def DSPEFI : Register<"">;
207 def DSPOutFlag16_19 : Register<"">;
208 def DSPOutFlag20 : Register<"">;
209 def DSPOutFlag21 : Register<"">;
210 def DSPOutFlag22 : Register<"">;
211 def DSPOutFlag23 : Register<"">;
212 def DSPCCond : Register<"">;
214 let SubRegIndices = [sub_dsp16_19, sub_dsp20, sub_dsp21, sub_dsp22,
216 def DSPOutFlag : RegisterWithSubRegs<"", [DSPOutFlag16_19, DSPOutFlag20,
217 DSPOutFlag21, DSPOutFlag22,
221 //===----------------------------------------------------------------------===//
223 //===----------------------------------------------------------------------===//
225 class GPR32Class<list<ValueType> regTypes> :
226 RegisterClass<"Mips", regTypes, 32, (add
229 // Return Values and Arguments
230 V0, V1, A0, A1, A2, A3,
231 // Not preserved across procedure calls
232 T0, T1, T2, T3, T4, T5, T6, T7,
234 S0, S1, S2, S3, S4, S5, S6, S7,
235 // Not preserved across procedure calls
238 K0, K1, GP, SP, FP, RA)>;
240 def GPR32 : GPR32Class<[i32]>;
241 def DSPRegs : GPR32Class<[v4i8, v2i16]>;
243 def GPR64 : RegisterClass<"Mips", [i64], 64, (add
246 // Return Values and Arguments
247 V0_64, V1_64, A0_64, A1_64, A2_64, A3_64,
248 // Not preserved across procedure calls
249 T0_64, T1_64, T2_64, T3_64, T4_64, T5_64, T6_64, T7_64,
251 S0_64, S1_64, S2_64, S3_64, S4_64, S5_64, S6_64, S7_64,
252 // Not preserved across procedure calls
255 K0_64, K1_64, GP_64, SP_64, FP_64, RA_64)>;
257 def CPU16Regs : RegisterClass<"Mips", [i32], 32, (add
258 // Return Values and Arguments
259 V0, V1, A0, A1, A2, A3,
263 def CPU16RegsPlusSP : RegisterClass<"Mips", [i32], 32, (add
264 // Return Values and Arguments
265 V0, V1, A0, A1, A2, A3,
270 def CPURAReg : RegisterClass<"Mips", [i32], 32, (add RA)>, Unallocatable;
272 def CPUSPReg : RegisterClass<"Mips", [i32], 32, (add SP)>, Unallocatable;
275 // * FGR64 - 32 64-bit registers
276 // * AFGR64 - 16 32-bit even registers (32-bit FP Mode)
279 // * FGR32 - 16 32-bit even registers
280 // * FGR32 - 32 32-bit registers (single float only mode)
281 def FGR32 : RegisterClass<"Mips", [f32], 32, (sequence "F%u", 0, 31)>;
283 def AFGR64 : RegisterClass<"Mips", [f64], 64, (add
284 // Return Values and Arguments
286 // Not preserved across procedure calls
288 // Return Values and Arguments
290 // Not preserved across procedure calls
293 D10, D11, D12, D13, D14, D15)>;
295 def FGR64 : RegisterClass<"Mips", [f64], 64, (sequence "D%u_64", 0, 31)>;
297 // FP control registers.
298 def CCR : RegisterClass<"Mips", [i32], 32, (sequence "FCR%u", 0, 31)>,
301 // FP condition code registers.
302 def FCC : RegisterClass<"Mips", [i32], 32, (sequence "FCC%u", 0, 7)>,
306 def LORegs : RegisterClass<"Mips", [i32], 32, (add LO)>;
307 def HIRegs : RegisterClass<"Mips", [i32], 32, (add HI)>;
308 def LORegsDSP : RegisterClass<"Mips", [i32], 32, (add LO, LO1, LO2, LO3)>;
309 def HIRegsDSP : RegisterClass<"Mips", [i32], 32, (add HI, HI1, HI2, HI3)>;
310 def LORegs64 : RegisterClass<"Mips", [i64], 64, (add LO64)>;
311 def HIRegs64 : RegisterClass<"Mips", [i64], 64, (add HI64)>;
313 // Hardware registers
314 def HWRegs : RegisterClass<"Mips", [i32], 32, (add HWR29)>, Unallocatable;
316 // Accumulator Registers
317 def ACRegs : RegisterClass<"Mips", [untyped], 64, (add AC0)> {
321 def ACRegs128 : RegisterClass<"Mips", [untyped], 128, (add AC0_64)> {
325 def ACRegsDSP : RegisterClass<"Mips", [untyped], 64, (sequence "AC%u", 0, 3)> {
329 def DSPCC : RegisterClass<"Mips", [v4i8, v2i16], 32, (add DSPCCond)>;
331 // Register Operands.
333 class MipsAsmRegOperand : AsmOperandClass {
334 let RenderMethod = "addRegAsmOperands";
336 def GPR32AsmOperand : MipsAsmRegOperand {
337 let Name = "GPR32Asm";
338 let ParserMethod = "parseGPR32";
341 def GPR64AsmOperand : MipsAsmRegOperand {
342 let Name = "GPR64Asm";
343 let ParserMethod = "parseGPR64";
346 def ACRegsDSPAsmOperand : MipsAsmRegOperand {
347 let Name = "ACRegsDSPAsm";
348 let ParserMethod = "parseACRegsDSP";
351 def CCRAsmOperand : MipsAsmRegOperand {
353 let ParserMethod = "parseCCRRegs";
356 def AFGR64AsmOperand : MipsAsmRegOperand {
357 let Name = "AFGR64Asm";
358 let ParserMethod = "parseAFGR64Regs";
361 def FGR64AsmOperand : MipsAsmRegOperand {
362 let Name = "FGR64Asm";
363 let ParserMethod = "parseFGR64Regs";
366 def FGR32AsmOperand : MipsAsmRegOperand {
367 let Name = "FGR32Asm";
368 let ParserMethod = "parseFGR32Regs";
371 def FCCRegsAsmOperand : MipsAsmRegOperand {
372 let Name = "FCCRegsAsm";
373 let ParserMethod = "parseFCCRegs";
376 def GPR32Opnd : RegisterOperand<GPR32> {
377 let ParserMatchClass = GPR32AsmOperand;
380 def GPR64Opnd : RegisterOperand<GPR64> {
381 let ParserMatchClass = GPR64AsmOperand;
384 def CCROpnd : RegisterOperand<CCR> {
385 let ParserMatchClass = CCRAsmOperand;
388 def HWRegsAsmOperand : MipsAsmRegOperand {
389 let Name = "HWRegsAsm";
390 let ParserMethod = "parseHWRegs";
393 def HWRegsOpnd : RegisterOperand<HWRegs> {
394 let ParserMatchClass = HWRegsAsmOperand;
397 def AFGR64RegsOpnd : RegisterOperand<AFGR64> {
398 let ParserMatchClass = AFGR64AsmOperand;
401 def FGR64RegsOpnd : RegisterOperand<FGR64> {
402 let ParserMatchClass = FGR64AsmOperand;
405 def FGR32RegsOpnd : RegisterOperand<FGR32> {
406 let ParserMatchClass = FGR32AsmOperand;
409 def FCCRegsOpnd : RegisterOperand<FCC> {
410 let ParserMatchClass = FCCRegsAsmOperand;
413 def ACRegsDSPOpnd : RegisterOperand<ACRegsDSP> {
414 let ParserMatchClass = ACRegsDSPAsmOperand;