1 //===- Mips64InstrInfo.td - Mips64 Instruction Information -*- 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 Mips64 instructions.
11 //===----------------------------------------------------------------------===//
13 //===----------------------------------------------------------------------===//
14 // Mips Operand, Complex Patterns and Transformations Definitions.
15 //===----------------------------------------------------------------------===//
17 // shamt must fit in 6 bits.
18 def immZExt6 : ImmLeaf<i32, [{return Imm == (Imm & 0x3f);}]>;
20 // Node immediate fits as 10-bit sign extended on target immediate.
22 def immSExt10_64 : PatLeaf<(i64 imm),
23 [{ return isInt<10>(N->getSExtValue()); }]>;
25 def immZExt16_64 : PatLeaf<(i64 imm),
26 [{ return isUInt<16>(N->getZExtValue()); }]>;
28 def immZExt5_64 : ImmLeaf<i64, [{ return Imm == (Imm & 0x1f); }]>;
30 // Transformation function: get log2 of low 32 bits of immediate
31 def Log2LO : SDNodeXForm<imm, [{
32 return getImm(N, Log2_64((unsigned) N->getZExtValue()));
35 // Transformation function: get log2 of high 32 bits of immediate
36 def Log2HI : SDNodeXForm<imm, [{
37 return getImm(N, Log2_64((unsigned) (N->getZExtValue() >> 32)));
40 // Predicate: True if immediate is a power of 2 and fits 32 bits
41 def PowerOf2LO : PatLeaf<(imm), [{
42 if (N->getValueType(0) == MVT::i64) {
43 uint64_t Imm = N->getZExtValue();
44 return isPowerOf2_64(Imm) && (Imm & 0xffffffff) == Imm;
50 // Predicate: True if immediate is a power of 2 and exceeds 32 bits
51 def PowerOf2HI : PatLeaf<(imm), [{
52 if (N->getValueType(0) == MVT::i64) {
53 uint64_t Imm = N->getZExtValue();
54 return isPowerOf2_64(Imm) && (Imm & 0xffffffff00000000) == Imm;
60 def PowerOf2LO_i32 : PatLeaf<(imm), [{
61 if (N->getValueType(0) == MVT::i32) {
62 uint64_t Imm = N->getZExtValue();
63 return isPowerOf2_32(Imm) && isUInt<32>(Imm);
69 def assertzext_lt_i32 : PatFrag<(ops node:$src), (assertzext node:$src), [{
70 return cast<VTSDNode>(N->getOperand(1))->getVT().bitsLT(MVT::i32);
73 //===----------------------------------------------------------------------===//
74 // Instructions specific format
75 //===----------------------------------------------------------------------===//
76 let usesCustomInserter = 1 in {
77 def ATOMIC_LOAD_ADD_I64 : Atomic2Ops<atomic_load_add_64, GPR64>;
78 def ATOMIC_LOAD_SUB_I64 : Atomic2Ops<atomic_load_sub_64, GPR64>;
79 def ATOMIC_LOAD_AND_I64 : Atomic2Ops<atomic_load_and_64, GPR64>;
80 def ATOMIC_LOAD_OR_I64 : Atomic2Ops<atomic_load_or_64, GPR64>;
81 def ATOMIC_LOAD_XOR_I64 : Atomic2Ops<atomic_load_xor_64, GPR64>;
82 def ATOMIC_LOAD_NAND_I64 : Atomic2Ops<atomic_load_nand_64, GPR64>;
83 def ATOMIC_SWAP_I64 : Atomic2Ops<atomic_swap_64, GPR64>;
84 def ATOMIC_CMP_SWAP_I64 : AtomicCmpSwap<atomic_cmp_swap_64, GPR64>;
87 def ATOMIC_LOAD_ADD_I64_POSTRA : Atomic2OpsPostRA<GPR64>;
88 def ATOMIC_LOAD_SUB_I64_POSTRA : Atomic2OpsPostRA<GPR64>;
89 def ATOMIC_LOAD_AND_I64_POSTRA : Atomic2OpsPostRA<GPR64>;
90 def ATOMIC_LOAD_OR_I64_POSTRA : Atomic2OpsPostRA<GPR64>;
91 def ATOMIC_LOAD_XOR_I64_POSTRA : Atomic2OpsPostRA<GPR64>;
92 def ATOMIC_LOAD_NAND_I64_POSTRA : Atomic2OpsPostRA<GPR64>;
94 def ATOMIC_SWAP_I64_POSTRA : Atomic2OpsPostRA<GPR64>;
96 def ATOMIC_CMP_SWAP_I64_POSTRA : AtomicCmpSwapPostRA<GPR64>;
98 /// Pseudo instructions for loading and storing accumulator registers.
99 let isPseudo = 1, isCodeGenOnly = 1, hasNoSchedulingInfo = 1 in {
100 def LOAD_ACC128 : Load<"", ACC128>;
101 def STORE_ACC128 : Store<"", ACC128>;
104 //===----------------------------------------------------------------------===//
105 // Instruction definition
106 //===----------------------------------------------------------------------===//
107 let DecoderNamespace = "Mips64" in {
108 /// Arithmetic Instructions (ALU Immediate)
109 def DADDi : ArithLogicI<"daddi", simm16_64, GPR64Opnd, II_DADDI>,
110 ADDI_FM<0x18>, ISA_MIPS3_NOT_32R6_64R6;
111 let AdditionalPredicates = [NotInMicroMips] in {
112 def DADDiu : ArithLogicI<"daddiu", simm16_64, GPR64Opnd, II_DADDIU,
114 ADDI_FM<0x19>, IsAsCheapAsAMove, ISA_MIPS3;
117 let isCodeGenOnly = 1 in {
118 def SLTi64 : SetCC_I<"slti", setlt, simm16_64, immSExt16, GPR64Opnd>,
119 SLTI_FM<0xa>, GPR_64;
120 def SLTiu64 : SetCC_I<"sltiu", setult, simm16_64, immSExt16, GPR64Opnd>,
121 SLTI_FM<0xb>, GPR_64;
122 def ANDi64 : ArithLogicI<"andi", uimm16_64, GPR64Opnd, II_AND, immZExt16, and>,
123 ADDI_FM<0xc>, GPR_64;
124 def ORi64 : ArithLogicI<"ori", uimm16_64, GPR64Opnd, II_OR, immZExt16, or>,
125 ADDI_FM<0xd>, GPR_64;
126 def XORi64 : ArithLogicI<"xori", uimm16_64, GPR64Opnd, II_XOR, immZExt16, xor>,
127 ADDI_FM<0xe>, GPR_64;
128 def LUi64 : LoadUpper<"lui", GPR64Opnd, uimm16_64_relaxed>, LUI_FM, GPR_64;
131 /// Arithmetic Instructions (3-Operand, R-Type)
132 let AdditionalPredicates = [NotInMicroMips] in {
133 def DADD : ArithLogicR<"dadd", GPR64Opnd, 1, II_DADD>, ADD_FM<0, 0x2c>,
135 def DADDu : ArithLogicR<"daddu", GPR64Opnd, 1, II_DADDU, add>,
136 ADD_FM<0, 0x2d>, ISA_MIPS3;
137 def DSUBu : ArithLogicR<"dsubu", GPR64Opnd, 0, II_DSUBU, sub>,
138 ADD_FM<0, 0x2f>, ISA_MIPS3;
139 def DSUB : ArithLogicR<"dsub", GPR64Opnd, 0, II_DSUB>, ADD_FM<0, 0x2e>,
143 let isCodeGenOnly = 1 in {
144 def SLT64 : SetCC_R<"slt", setlt, GPR64Opnd>, ADD_FM<0, 0x2a>, GPR_64;
145 def SLTu64 : SetCC_R<"sltu", setult, GPR64Opnd>, ADD_FM<0, 0x2b>, GPR_64;
146 def AND64 : ArithLogicR<"and", GPR64Opnd, 1, II_AND, and>, ADD_FM<0, 0x24>,
148 def OR64 : ArithLogicR<"or", GPR64Opnd, 1, II_OR, or>, ADD_FM<0, 0x25>,
150 def XOR64 : ArithLogicR<"xor", GPR64Opnd, 1, II_XOR, xor>, ADD_FM<0, 0x26>,
152 def NOR64 : LogicNOR<"nor", GPR64Opnd>, ADD_FM<0, 0x27>, GPR_64;
155 /// Shift Instructions
156 let AdditionalPredicates = [NotInMicroMips] in {
157 def DSLL : shift_rotate_imm<"dsll", uimm6, GPR64Opnd, II_DSLL, shl,
159 SRA_FM<0x38, 0>, ISA_MIPS3;
160 def DSRL : shift_rotate_imm<"dsrl", uimm6, GPR64Opnd, II_DSRL, srl,
162 SRA_FM<0x3a, 0>, ISA_MIPS3;
163 def DSRA : shift_rotate_imm<"dsra", uimm6, GPR64Opnd, II_DSRA, sra,
165 SRA_FM<0x3b, 0>, ISA_MIPS3;
166 def DSLLV : shift_rotate_reg<"dsllv", GPR64Opnd, II_DSLLV, shl>,
167 SRLV_FM<0x14, 0>, ISA_MIPS3;
168 def DSRAV : shift_rotate_reg<"dsrav", GPR64Opnd, II_DSRAV, sra>,
169 SRLV_FM<0x17, 0>, ISA_MIPS3;
170 def DSRLV : shift_rotate_reg<"dsrlv", GPR64Opnd, II_DSRLV, srl>,
171 SRLV_FM<0x16, 0>, ISA_MIPS3;
172 def DSLL32 : shift_rotate_imm<"dsll32", uimm5, GPR64Opnd, II_DSLL32>,
173 SRA_FM<0x3c, 0>, ISA_MIPS3;
174 def DSRL32 : shift_rotate_imm<"dsrl32", uimm5, GPR64Opnd, II_DSRL32>,
175 SRA_FM<0x3e, 0>, ISA_MIPS3;
176 def DSRA32 : shift_rotate_imm<"dsra32", uimm5, GPR64Opnd, II_DSRA32>,
177 SRA_FM<0x3f, 0>, ISA_MIPS3;
179 // Rotate Instructions
180 def DROTR : shift_rotate_imm<"drotr", uimm6, GPR64Opnd, II_DROTR, rotr,
182 SRA_FM<0x3a, 1>, ISA_MIPS64R2;
183 def DROTRV : shift_rotate_reg<"drotrv", GPR64Opnd, II_DROTRV, rotr>,
184 SRLV_FM<0x16, 1>, ISA_MIPS64R2;
185 def DROTR32 : shift_rotate_imm<"drotr32", uimm5, GPR64Opnd, II_DROTR32>,
186 SRA_FM<0x3e, 1>, ISA_MIPS64R2;
189 /// Load and Store Instructions
191 let isCodeGenOnly = 1 in {
192 def LB64 : Load<"lb", GPR64Opnd, sextloadi8, II_LB>, LW_FM<0x20>, GPR_64;
193 def LBu64 : Load<"lbu", GPR64Opnd, zextloadi8, II_LBU>, LW_FM<0x24>, GPR_64;
194 def LH64 : Load<"lh", GPR64Opnd, sextloadi16, II_LH>, LW_FM<0x21>, GPR_64;
195 def LHu64 : Load<"lhu", GPR64Opnd, zextloadi16, II_LHU>, LW_FM<0x25>, GPR_64;
196 def LW64 : Load<"lw", GPR64Opnd, sextloadi32, II_LW>, LW_FM<0x23>, GPR_64;
197 def SB64 : Store<"sb", GPR64Opnd, truncstorei8, II_SB>, LW_FM<0x28>, GPR_64;
198 def SH64 : Store<"sh", GPR64Opnd, truncstorei16, II_SH>, LW_FM<0x29>,
200 def SW64 : Store<"sw", GPR64Opnd, truncstorei32, II_SW>, LW_FM<0x2b>,
204 let AdditionalPredicates = [NotInMicroMips] in {
205 def LWu : MMRel, Load<"lwu", GPR64Opnd, zextloadi32, II_LWU>,
206 LW_FM<0x27>, ISA_MIPS3;
207 def LD : LoadMemory<"ld", GPR64Opnd, mem_simmptr, load, II_LD>,
208 LW_FM<0x37>, ISA_MIPS3;
209 def SD : StoreMemory<"sd", GPR64Opnd, mem_simmptr, store, II_SD>,
210 LW_FM<0x3f>, ISA_MIPS3;
215 /// load/store left/right
216 let isCodeGenOnly = 1 in {
217 def LWL64 : LoadLeftRight<"lwl", MipsLWL, GPR64Opnd, II_LWL>, LW_FM<0x22>,
219 def LWR64 : LoadLeftRight<"lwr", MipsLWR, GPR64Opnd, II_LWR>, LW_FM<0x26>,
221 def SWL64 : StoreLeftRight<"swl", MipsSWL, GPR64Opnd, II_SWL>, LW_FM<0x2a>,
223 def SWR64 : StoreLeftRight<"swr", MipsSWR, GPR64Opnd, II_SWR>, LW_FM<0x2e>,
227 def LDL : LoadLeftRight<"ldl", MipsLDL, GPR64Opnd, II_LDL>, LW_FM<0x1a>,
228 ISA_MIPS3_NOT_32R6_64R6;
229 def LDR : LoadLeftRight<"ldr", MipsLDR, GPR64Opnd, II_LDR>, LW_FM<0x1b>,
230 ISA_MIPS3_NOT_32R6_64R6;
231 def SDL : StoreLeftRight<"sdl", MipsSDL, GPR64Opnd, II_SDL>, LW_FM<0x2c>,
232 ISA_MIPS3_NOT_32R6_64R6;
233 def SDR : StoreLeftRight<"sdr", MipsSDR, GPR64Opnd, II_SDR>, LW_FM<0x2d>,
234 ISA_MIPS3_NOT_32R6_64R6;
236 /// Load-linked, Store-conditional
237 let AdditionalPredicates = [NotInMicroMips] in {
238 def LLD : LLBase<"lld", GPR64Opnd, mem_simmptr>, LW_FM<0x34>,
239 ISA_MIPS3_NOT_32R6_64R6;
241 def SCD : SCBase<"scd", GPR64Opnd>, LW_FM<0x3c>, ISA_MIPS3_NOT_32R6_64R6;
243 let AdditionalPredicates = [NotInMicroMips],
244 DecoderNamespace = "Mips32_64_PTR64" in {
245 def LL64 : LLBase<"ll", GPR32Opnd>, LW_FM<0x30>, PTR_64,
246 ISA_MIPS2_NOT_32R6_64R6;
247 def SC64 : SCBase<"sc", GPR32Opnd>, LW_FM<0x38>, PTR_64,
248 ISA_MIPS2_NOT_32R6_64R6;
249 def JR64 : IndirectBranch<"jr", GPR64Opnd>, MTLO_FM<8>, PTR_64;
252 def JALR64 : JumpLinkReg<"jalr", GPR64Opnd>, JALR_FM;
254 /// Jump and Branch Instructions
255 let isCodeGenOnly = 1 in {
256 def BEQ64 : CBranch<"beq", brtarget, seteq, GPR64Opnd>, BEQ_FM<4>,
258 def BNE64 : CBranch<"bne", brtarget, setne, GPR64Opnd>, BEQ_FM<5>,
260 def BGEZ64 : CBranchZero<"bgez", brtarget, setge, GPR64Opnd>, BGEZ_FM<1, 1>,
262 def BGTZ64 : CBranchZero<"bgtz", brtarget, setgt, GPR64Opnd>, BGEZ_FM<7, 0>,
264 def BLEZ64 : CBranchZero<"blez", brtarget, setle, GPR64Opnd>, BGEZ_FM<6, 0>,
266 def BLTZ64 : CBranchZero<"bltz", brtarget, setlt, GPR64Opnd>, BGEZ_FM<1, 0>,
268 let AdditionalPredicates = [NoIndirectJumpGuards] in
269 def JALR64Pseudo : JumpLinkRegPseudo<GPR64Opnd, JALR, RA, GPR32Opnd>;
271 let AdditionalPredicates = [NotInMicroMips],
272 DecoderNamespace = "Mips64" in {
273 def JR_HB64 : JR_HB_DESC<GPR64Opnd>, JR_HB_ENC, ISA_MIPS32_NOT_32R6_64R6;
274 def JALR_HB64 : JALR_HB_DESC<GPR64Opnd>, JALR_HB_ENC, ISA_MIPS32R2;
276 def PseudoReturn64 : PseudoReturnBase<GPR64Opnd>;
278 let AdditionalPredicates = [NotInMips16Mode, NotInMicroMips,
279 NoIndirectJumpGuards] in {
280 def TAILCALLREG64 : TailCallReg<JR64, GPR64Opnd>, ISA_MIPS3_NOT_32R6_64R6,
282 def PseudoIndirectBranch64 : PseudoIndirectBranchBase<JR64, GPR64Opnd>,
283 ISA_MIPS3_NOT_32R6_64R6;
286 let AdditionalPredicates = [NotInMips16Mode, NotInMicroMips,
287 UseIndirectJumpsHazard] in {
288 def TAILCALLREGHB64 : TailCallReg<JR_HB64, GPR64Opnd>,
289 ISA_MIPS32R2_NOT_32R6_64R6, PTR_64;
290 def PseudoIndirectHazardBranch64 : PseudoIndirectBranchBase<JR_HB64,
292 ISA_MIPS32R2_NOT_32R6_64R6;
295 /// Multiply and Divide Instructions.
296 let AdditionalPredicates = [NotInMicroMips] in {
297 def DMULT : Mult<"dmult", II_DMULT, GPR64Opnd, [HI0_64, LO0_64]>,
298 MULT_FM<0, 0x1c>, ISA_MIPS3_NOT_32R6_64R6;
299 def DMULTu : Mult<"dmultu", II_DMULTU, GPR64Opnd, [HI0_64, LO0_64]>,
300 MULT_FM<0, 0x1d>, ISA_MIPS3_NOT_32R6_64R6;
302 def PseudoDMULT : MultDivPseudo<DMULT, ACC128, GPR64Opnd, MipsMult,
303 II_DMULT>, ISA_MIPS3_NOT_32R6_64R6;
304 def PseudoDMULTu : MultDivPseudo<DMULTu, ACC128, GPR64Opnd, MipsMultu,
305 II_DMULTU>, ISA_MIPS3_NOT_32R6_64R6;
306 let AdditionalPredicates = [NotInMicroMips] in {
307 def DSDIV : Div<"ddiv", II_DDIV, GPR64Opnd, [HI0_64, LO0_64]>,
308 MULT_FM<0, 0x1e>, ISA_MIPS3_NOT_32R6_64R6;
309 def DUDIV : Div<"ddivu", II_DDIVU, GPR64Opnd, [HI0_64, LO0_64]>,
310 MULT_FM<0, 0x1f>, ISA_MIPS3_NOT_32R6_64R6;
312 def PseudoDSDIV : MultDivPseudo<DSDIV, ACC128, GPR64Opnd, MipsDivRem,
313 II_DDIV, 0, 1, 1>, ISA_MIPS3_NOT_32R6_64R6;
314 def PseudoDUDIV : MultDivPseudo<DUDIV, ACC128, GPR64Opnd, MipsDivRemU,
315 II_DDIVU, 0, 1, 1>, ISA_MIPS3_NOT_32R6_64R6;
317 let isCodeGenOnly = 1 in {
318 def MTHI64 : MoveToLOHI<"mthi", GPR64Opnd, [HI0_64]>, MTLO_FM<0x11>,
319 ISA_MIPS3_NOT_32R6_64R6;
320 def MTLO64 : MoveToLOHI<"mtlo", GPR64Opnd, [LO0_64]>, MTLO_FM<0x13>,
321 ISA_MIPS3_NOT_32R6_64R6;
322 def MFHI64 : MoveFromLOHI<"mfhi", GPR64Opnd, AC0_64>, MFLO_FM<0x10>,
323 ISA_MIPS3_NOT_32R6_64R6;
324 def MFLO64 : MoveFromLOHI<"mflo", GPR64Opnd, AC0_64>, MFLO_FM<0x12>,
325 ISA_MIPS3_NOT_32R6_64R6;
326 def PseudoMFHI64 : PseudoMFLOHI<GPR64, ACC128, MipsMFHI>,
327 ISA_MIPS3_NOT_32R6_64R6;
328 def PseudoMFLO64 : PseudoMFLOHI<GPR64, ACC128, MipsMFLO>,
329 ISA_MIPS3_NOT_32R6_64R6;
330 def PseudoMTLOHI64 : PseudoMTLOHI<ACC128, GPR64>, ISA_MIPS3_NOT_32R6_64R6;
332 /// Sign Ext In Register Instructions.
333 def SEB64 : SignExtInReg<"seb", i8, GPR64Opnd, II_SEB>, SEB_FM<0x10, 0x20>,
335 def SEH64 : SignExtInReg<"seh", i16, GPR64Opnd, II_SEH>, SEB_FM<0x18, 0x20>,
340 let AdditionalPredicates = [NotInMicroMips] in {
341 def DCLZ : CountLeading0<"dclz", GPR64Opnd, II_DCLZ>, CLO_FM<0x24>,
343 def DCLO : CountLeading1<"dclo", GPR64Opnd, II_DCLO>, CLO_FM<0x25>,
346 /// Double Word Swap Bytes/HalfWords
347 def DSBH : SubwordSwap<"dsbh", GPR64Opnd, II_DSBH>, SEB_FM<2, 0x24>,
349 def DSHD : SubwordSwap<"dshd", GPR64Opnd, II_DSHD>, SEB_FM<5, 0x24>,
352 def LEA_ADDiu64 : EffectiveAddress<"daddiu", GPR64Opnd>, LW_FM<0x19>,
356 let isCodeGenOnly = 1 in
357 def RDHWR64 : ReadHardware<GPR64Opnd, HWRegsOpnd>, RDHWR_FM, GPR_64;
359 let AdditionalPredicates = [NotInMicroMips] in {
360 // The 'pos + size' constraints for code generation are enforced by the
361 // code that lowers into MipsISD::Ext.
362 // For assembly parsing, we alias dextu and dextm to dext, and match by
363 // operand were possible then check the 'pos + size' in MipsAsmParser.
364 // We override the generated decoder to enforce that dext always comes out
365 // for dextm and dextu like binutils.
366 let DecoderMethod = "DecodeDEXT" in {
367 def DEXT : ExtBase<"dext", GPR64Opnd, uimm5_report_uimm6,
368 uimm5_plus1_report_uimm6, immZExt5, immZExt5Plus1,
369 MipsExt>, EXT_FM<3>, ISA_MIPS64R2;
370 def DEXTM : ExtBase<"dextm", GPR64Opnd, uimm5, uimm5_plus33, immZExt5,
371 immZExt5Plus33, MipsExt>, EXT_FM<1>, ISA_MIPS64R2;
372 def DEXTU : ExtBase<"dextu", GPR64Opnd, uimm5_plus32, uimm5_plus1,
373 immZExt5Plus32, immZExt5Plus1, MipsExt>, EXT_FM<2>,
376 // The 'pos + size' constraints for code generation are enforced by the
377 // code that lowers into MipsISD::Ins.
378 // For assembly parsing, we alias dinsu and dinsm to dins, and match by
379 // operand were possible then check the 'pos + size' in MipsAsmParser.
380 // We override the generated decoder to enforce that dins always comes out
381 // for dinsm and dinsu like binutils.
382 let DecoderMethod = "DecodeDINS" in {
383 def DINS : InsBase<"dins", GPR64Opnd, uimm6, uimm5_inssize_plus1,
384 immZExt5, immZExt5Plus1>, EXT_FM<7>,
386 def DINSU : InsBase<"dinsu", GPR64Opnd, uimm5_plus32, uimm5_inssize_plus1,
387 immZExt5Plus32, immZExt5Plus1>,
388 EXT_FM<6>, ISA_MIPS64R2;
389 def DINSM : InsBase<"dinsm", GPR64Opnd, uimm5, uimm_range_2_64,
390 immZExt5, immZExtRange2To64>,
391 EXT_FM<5>, ISA_MIPS64R2;
395 let isCodeGenOnly = 1, AdditionalPredicates = [NotInMicroMips] in {
396 def DEXT64_32 : InstSE<(outs GPR64Opnd:$rt),
397 (ins GPR32Opnd:$rs, uimm5_report_uimm6:$pos,
399 "dext $rt, $rs, $pos, $size", [], II_EXT, FrmR, "dext">,
400 EXT_FM<3>, ISA_MIPS64R2;
403 let isCodeGenOnly = 1, rs = 0, shamt = 0 in {
404 def DSLL64_32 : FR<0x00, 0x3c, (outs GPR64:$rd), (ins GPR32:$rt),
405 "dsll\t$rd, $rt, 32", [], II_DSLL>, GPR_64;
406 let isMoveReg = 1 in {
407 def SLL64_32 : FR<0x0, 0x00, (outs GPR64:$rd), (ins GPR32:$rt),
408 "sll\t$rd, $rt, 0", [], II_SLL>, GPR_64;
409 def SLL64_64 : FR<0x0, 0x00, (outs GPR64:$rd), (ins GPR64:$rt),
410 "sll\t$rd, $rt, 0", [], II_SLL>, GPR_64;
414 // We need the following pseudo instruction to avoid offset calculation for
415 // long branches. See the comment in file MipsLongBranch.cpp for detailed
418 // Expands to: lui $dst, %highest/%higher/%hi/%lo($tgt)
419 def LONG_BRANCH_LUi2Op_64 : PseudoSE<(outs GPR64Opnd:$dst),
420 (ins brtarget:$tgt), []>, GPR_64;
421 // Expands to: addiu $dst, %highest/%higher/%hi/%lo($tgt)
422 def LONG_BRANCH_DADDiu2Op : PseudoSE<(outs GPR64Opnd:$dst),
423 (ins GPR64Opnd:$src, brtarget:$tgt), []>, GPR_64;
425 // Expands to: daddiu $dst, $src, %PART($tgt - $baltgt)
426 // where %PART may be %hi or %lo, depending on the relocation kind
427 // that $tgt is annotated with.
428 def LONG_BRANCH_DADDiu : PseudoSE<(outs GPR64Opnd:$dst),
429 (ins GPR64Opnd:$src, brtarget:$tgt, brtarget:$baltgt), []>, GPR_64;
431 // Cavium Octeon cnMIPS instructions
432 let DecoderNamespace = "CnMips",
433 // FIXME: The lack of HasStdEnc is probably a bug
434 EncodingPredicates = []<Predicate> in {
436 class Count1s<string opstr, RegisterOperand RO>:
437 InstSE<(outs RO:$rd), (ins RO:$rs), !strconcat(opstr, "\t$rd, $rs"),
438 [(set RO:$rd, (ctpop RO:$rs))], II_POP, FrmR, opstr> {
439 let TwoOperandAliasConstraint = "$rd = $rs";
442 class ExtsCins<string opstr, InstrItinClass itin, RegisterOperand RO,
443 PatFrag PosImm, SDPatternOperator Op = null_frag>:
444 InstSE<(outs RO:$rt), (ins RO:$rs, uimm5:$pos, uimm5:$lenm1),
445 !strconcat(opstr, "\t$rt, $rs, $pos, $lenm1"),
446 [(set RO:$rt, (Op RO:$rs, PosImm:$pos, imm:$lenm1))],
448 let TwoOperandAliasConstraint = "$rt = $rs";
451 class SetCC64_R<string opstr, PatFrag cond_op> :
452 InstSE<(outs GPR64Opnd:$rd), (ins GPR64Opnd:$rs, GPR64Opnd:$rt),
453 !strconcat(opstr, "\t$rd, $rs, $rt"),
454 [(set GPR64Opnd:$rd, (zext (cond_op GPR64Opnd:$rs,
456 II_SEQ_SNE, FrmR, opstr> {
457 let TwoOperandAliasConstraint = "$rd = $rs";
460 class SetCC64_I<string opstr, PatFrag cond_op>:
461 InstSE<(outs GPR64Opnd:$rt), (ins GPR64Opnd:$rs, simm10_64:$imm10),
462 !strconcat(opstr, "\t$rt, $rs, $imm10"),
463 [(set GPR64Opnd:$rt, (zext (cond_op GPR64Opnd:$rs,
464 immSExt10_64:$imm10)))],
465 II_SEQI_SNEI, FrmI, opstr> {
466 let TwoOperandAliasConstraint = "$rt = $rs";
469 class CBranchBitNum<string opstr, DAGOperand opnd, PatFrag cond_op,
470 RegisterOperand RO, Operand ImmOp, bits<64> shift = 1> :
471 InstSE<(outs), (ins RO:$rs, ImmOp:$p, opnd:$offset),
472 !strconcat(opstr, "\t$rs, $p, $offset"),
473 [(brcond (i32 (cond_op (and RO:$rs, (shl shift, immZExt5_64:$p)), 0)),
474 bb:$offset)], II_BBIT, FrmI, opstr> {
476 let isTerminator = 1;
477 let hasDelaySlot = 1;
481 class MFC2OP<string asmstr, RegisterOperand RO, InstrItinClass itin> :
482 InstSE<(outs RO:$rt, uimm16:$imm16), (ins),
483 !strconcat(asmstr, "\t$rt, $imm16"), [], itin, FrmFR>;
486 def BADDu : ArithLogicR<"baddu", GPR64Opnd, 1, II_BADDU>,
487 ADD_FM<0x1c, 0x28>, ASE_CNMIPS {
488 let Pattern = [(set GPR64Opnd:$rd,
489 (and (add GPR64Opnd:$rs, GPR64Opnd:$rt), 255))];
492 // Branch on Bit Clear /+32
493 def BBIT0 : CBranchBitNum<"bbit0", brtarget, seteq, GPR64Opnd,
494 uimm5_64_report_uimm6>, BBIT_FM<0x32>, ASE_CNMIPS;
495 def BBIT032: CBranchBitNum<"bbit032", brtarget, seteq, GPR64Opnd, uimm5_64,
496 0x100000000>, BBIT_FM<0x36>, ASE_CNMIPS;
498 // Branch on Bit Set /+32
499 def BBIT1 : CBranchBitNum<"bbit1", brtarget, setne, GPR64Opnd,
500 uimm5_64_report_uimm6>, BBIT_FM<0x3a>, ASE_CNMIPS;
501 def BBIT132: CBranchBitNum<"bbit132", brtarget, setne, GPR64Opnd, uimm5_64,
502 0x100000000>, BBIT_FM<0x3e>, ASE_CNMIPS;
504 // Multiply Doubleword to GPR
505 def DMUL : ArithLogicR<"dmul", GPR64Opnd, 1, II_DMUL, mul>,
506 ADD_FM<0x1c, 0x03>, ASE_CNMIPS {
507 let Defs = [HI0, LO0, P0, P1, P2];
510 let AdditionalPredicates = [NotInMicroMips] in {
511 // Extract a signed bit field /+32
512 def EXTS : ExtsCins<"exts", II_EXT, GPR64Opnd, immZExt5>, EXTS_FM<0x3a>,
514 def EXTS32: ExtsCins<"exts32", II_EXT, GPR64Opnd, immZExt5Plus32>,
515 EXTS_FM<0x3b>, ASE_MIPS64_CNMIPS;
517 // Clear and insert a bit field /+32
518 def CINS : ExtsCins<"cins", II_INS, GPR64Opnd, immZExt5, MipsCIns>,
519 EXTS_FM<0x32>, ASE_MIPS64_CNMIPS;
520 def CINS32: ExtsCins<"cins32", II_INS, GPR64Opnd, immZExt5Plus32, MipsCIns>,
521 EXTS_FM<0x33>, ASE_MIPS64_CNMIPS;
522 let isCodeGenOnly = 1 in {
523 def CINS_i32 : ExtsCins<"cins", II_INS, GPR32Opnd, immZExt5, MipsCIns>,
524 EXTS_FM<0x32>, ASE_MIPS64_CNMIPS;
525 def CINS64_32 :InstSE<(outs GPR64Opnd:$rt),
526 (ins GPR32Opnd:$rs, uimm5:$pos, uimm5:$lenm1),
527 "cins\t$rt, $rs, $pos, $lenm1", [], II_INS, FrmR,
529 EXTS_FM<0x32>, ASE_MIPS64_CNMIPS;
533 // Move to multiplier/product register
534 def MTM0 : MoveToLOHI<"mtm0", GPR64Opnd, [MPL0, P0, P1, P2]>, MTMR_FM<0x08>,
536 def MTM1 : MoveToLOHI<"mtm1", GPR64Opnd, [MPL1, P0, P1, P2]>, MTMR_FM<0x0c>,
538 def MTM2 : MoveToLOHI<"mtm2", GPR64Opnd, [MPL2, P0, P1, P2]>, MTMR_FM<0x0d>,
540 def MTP0 : MoveToLOHI<"mtp0", GPR64Opnd, [P0]>, MTMR_FM<0x09>, ASE_CNMIPS;
541 def MTP1 : MoveToLOHI<"mtp1", GPR64Opnd, [P1]>, MTMR_FM<0x0a>, ASE_CNMIPS;
542 def MTP2 : MoveToLOHI<"mtp2", GPR64Opnd, [P2]>, MTMR_FM<0x0b>, ASE_CNMIPS;
544 // Count Ones in a Word/Doubleword
545 def POP : Count1s<"pop", GPR32Opnd>, POP_FM<0x2c>, ASE_CNMIPS;
546 def DPOP : Count1s<"dpop", GPR64Opnd>, POP_FM<0x2d>, ASE_CNMIPS;
548 // Set on equal/not equal
549 def SEQ : SetCC64_R<"seq", seteq>, SEQ_FM<0x2a>, ASE_CNMIPS;
550 def SEQi : SetCC64_I<"seqi", seteq>, SEQI_FM<0x2e>, ASE_CNMIPS;
551 def SNE : SetCC64_R<"sne", setne>, SEQ_FM<0x2b>, ASE_CNMIPS;
552 def SNEi : SetCC64_I<"snei", setne>, SEQI_FM<0x2f>, ASE_CNMIPS;
554 // 192-bit x 64-bit Unsigned Multiply and Add
555 def V3MULU: ArithLogicR<"v3mulu", GPR64Opnd, 0, II_DMUL>, ADD_FM<0x1c, 0x11>,
557 let Defs = [P0, P1, P2];
560 // 64-bit Unsigned Multiply and Add Move
561 def VMM0 : ArithLogicR<"vmm0", GPR64Opnd, 0, II_DMUL>, ADD_FM<0x1c, 0x10>,
563 let Defs = [MPL0, P0, P1, P2];
566 // 64-bit Unsigned Multiply and Add
567 def VMULU : ArithLogicR<"vmulu", GPR64Opnd, 0, II_DMUL>, ADD_FM<0x1c, 0x0f>,
569 let Defs = [MPL1, MPL2, P0, P1, P2];
572 // Move between CPU and coprocessor registers
573 def DMFC2_OCTEON : MFC2OP<"dmfc2", GPR64Opnd, II_DMFC2>, MFC2OP_FM<0x12, 1>,
575 def DMTC2_OCTEON : MFC2OP<"dmtc2", GPR64Opnd, II_DMTC2>, MFC2OP_FM<0x12, 5>,
581 /// Move between CPU and coprocessor registers
582 let DecoderNamespace = "Mips64", Predicates = [HasMips64] in {
583 def DMFC0 : MFC3OP<"dmfc0", GPR64Opnd, COP0Opnd, II_DMFC0>,
584 MFC3OP_FM<0x10, 1, 0>, ISA_MIPS3;
585 def DMTC0 : MTC3OP<"dmtc0", COP0Opnd, GPR64Opnd, II_DMTC0>,
586 MFC3OP_FM<0x10, 5, 0>, ISA_MIPS3;
587 def DMFC2 : MFC3OP<"dmfc2", GPR64Opnd, COP2Opnd, II_DMFC2>,
588 MFC3OP_FM<0x12, 1, 0>, ISA_MIPS3;
589 def DMTC2 : MTC3OP<"dmtc2", COP2Opnd, GPR64Opnd, II_DMTC2>,
590 MFC3OP_FM<0x12, 5, 0>, ISA_MIPS3;
593 /// Move between CPU and guest coprocessor registers (Virtualization ASE)
594 let DecoderNamespace = "Mips64" in {
595 def DMFGC0 : MFC3OP<"dmfgc0", GPR64Opnd, COP0Opnd, II_DMFGC0>,
596 MFC3OP_FM<0x10, 3, 1>, ISA_MIPS64R5, ASE_VIRT;
597 def DMTGC0 : MTC3OP<"dmtgc0", COP0Opnd, GPR64Opnd, II_DMTGC0>,
598 MFC3OP_FM<0x10, 3, 3>, ISA_MIPS64R5, ASE_VIRT;
601 let AdditionalPredicates = [UseIndirectJumpsHazard] in
602 def JALRHB64Pseudo : JumpLinkRegPseudo<GPR64Opnd, JALR_HB64, RA_64>;
604 //===----------------------------------------------------------------------===//
605 // Arbitrary patterns that map to one or more instructions
606 //===----------------------------------------------------------------------===//
608 // Materialize i64 constants.
609 defm : MaterializeImms<i64, ZERO_64, DADDiu, LUi64, ORi64>, ISA_MIPS3, GPR_64;
611 def : MipsPat<(i64 immZExt32Low16Zero:$imm),
612 (DSLL (ORi64 ZERO_64, (HI16 imm:$imm)), 16)>, ISA_MIPS3, GPR_64;
614 def : MipsPat<(i64 immZExt32:$imm),
615 (ORi64 (DSLL (ORi64 ZERO_64, (HI16 imm:$imm)), 16),
616 (LO16 imm:$imm))>, ISA_MIPS3, GPR_64;
619 def : MipsPat<(i64 (extloadi1 addr:$src)), (LB64 addr:$src)>, ISA_MIPS3,
621 def : MipsPat<(i64 (extloadi8 addr:$src)), (LB64 addr:$src)>, ISA_MIPS3,
623 def : MipsPat<(i64 (extloadi16 addr:$src)), (LH64 addr:$src)>, ISA_MIPS3,
625 def : MipsPat<(i64 (extloadi32 addr:$src)), (LW64 addr:$src)>, ISA_MIPS3,
629 let AdditionalPredicates = [NotInMicroMips] in
630 defm : MipsHiLoRelocs<LUi64, DADDiu, ZERO_64, GPR64Opnd>, ISA_MIPS3, GPR_64,
633 def : MipsPat<(MipsGotHi tglobaladdr:$in), (LUi64 tglobaladdr:$in)>, ISA_MIPS3,
635 def : MipsPat<(MipsGotHi texternalsym:$in), (LUi64 texternalsym:$in)>,
638 def : MipsPat<(MipsTlsHi tglobaltlsaddr:$in), (LUi64 tglobaltlsaddr:$in)>,
641 // highest/higher/hi/lo relocs
642 let AdditionalPredicates = [NotInMicroMips] in {
643 def : MipsPat<(MipsJmpLink (i64 texternalsym:$dst)),
644 (JAL texternalsym:$dst)>, ISA_MIPS3, GPR_64, SYM_64;
645 def : MipsPat<(MipsHighest (i64 tglobaladdr:$in)),
646 (LUi64 tglobaladdr:$in)>, ISA_MIPS3, GPR_64, SYM_64;
647 def : MipsPat<(MipsHighest (i64 tblockaddress:$in)),
648 (LUi64 tblockaddress:$in)>, ISA_MIPS3, GPR_64, SYM_64;
649 def : MipsPat<(MipsHighest (i64 tjumptable:$in)),
650 (LUi64 tjumptable:$in)>, ISA_MIPS3, GPR_64, SYM_64;
651 def : MipsPat<(MipsHighest (i64 tconstpool:$in)),
652 (LUi64 tconstpool:$in)>, ISA_MIPS3, GPR_64, SYM_64;
653 def : MipsPat<(MipsHighest (i64 texternalsym:$in)),
654 (LUi64 texternalsym:$in)>, ISA_MIPS3, GPR_64, SYM_64;
656 def : MipsPat<(MipsHigher (i64 tglobaladdr:$in)),
657 (DADDiu ZERO_64, tglobaladdr:$in)>, ISA_MIPS3, GPR_64, SYM_64;
658 def : MipsPat<(MipsHigher (i64 tblockaddress:$in)),
659 (DADDiu ZERO_64, tblockaddress:$in)>, ISA_MIPS3, GPR_64, SYM_64;
660 def : MipsPat<(MipsHigher (i64 tjumptable:$in)),
661 (DADDiu ZERO_64, tjumptable:$in)>, ISA_MIPS3, GPR_64, SYM_64;
662 def : MipsPat<(MipsHigher (i64 tconstpool:$in)),
663 (DADDiu ZERO_64, tconstpool:$in)>, ISA_MIPS3, GPR_64, SYM_64;
664 def : MipsPat<(MipsHigher (i64 texternalsym:$in)),
665 (DADDiu ZERO_64, texternalsym:$in)>, ISA_MIPS3, GPR_64, SYM_64;
667 def : MipsPat<(add GPR64:$hi, (MipsHigher (i64 tglobaladdr:$lo))),
668 (DADDiu GPR64:$hi, tglobaladdr:$lo)>, ISA_MIPS3, GPR_64, SYM_64;
669 def : MipsPat<(add GPR64:$hi, (MipsHigher (i64 tblockaddress:$lo))),
670 (DADDiu GPR64:$hi, tblockaddress:$lo)>, ISA_MIPS3, GPR_64,
672 def : MipsPat<(add GPR64:$hi, (MipsHigher (i64 tjumptable:$lo))),
673 (DADDiu GPR64:$hi, tjumptable:$lo)>, ISA_MIPS3, GPR_64, SYM_64;
674 def : MipsPat<(add GPR64:$hi, (MipsHigher (i64 tconstpool:$lo))),
675 (DADDiu GPR64:$hi, tconstpool:$lo)>, ISA_MIPS3, GPR_64, SYM_64;
677 def : MipsPat<(add GPR64:$hi, (MipsHi (i64 tglobaladdr:$lo))),
678 (DADDiu GPR64:$hi, tglobaladdr:$lo)>, ISA_MIPS3, GPR_64, SYM_64;
679 def : MipsPat<(add GPR64:$hi, (MipsHi (i64 tblockaddress:$lo))),
680 (DADDiu GPR64:$hi, tblockaddress:$lo)>, ISA_MIPS3, GPR_64,
682 def : MipsPat<(add GPR64:$hi, (MipsHi (i64 tjumptable:$lo))),
683 (DADDiu GPR64:$hi, tjumptable:$lo)>, ISA_MIPS3, GPR_64, SYM_64;
684 def : MipsPat<(add GPR64:$hi, (MipsHi (i64 tconstpool:$lo))),
685 (DADDiu GPR64:$hi, tconstpool:$lo)>, ISA_MIPS3, GPR_64, SYM_64;
687 def : MipsPat<(add GPR64:$hi, (MipsLo (i64 tglobaladdr:$lo))),
688 (DADDiu GPR64:$hi, tglobaladdr:$lo)>, ISA_MIPS3, GPR_64, SYM_64;
689 def : MipsPat<(add GPR64:$hi, (MipsLo (i64 tblockaddress:$lo))),
690 (DADDiu GPR64:$hi, tblockaddress:$lo)>, ISA_MIPS3, GPR_64,
692 def : MipsPat<(add GPR64:$hi, (MipsLo (i64 tjumptable:$lo))),
693 (DADDiu GPR64:$hi, tjumptable:$lo)>, ISA_MIPS3, GPR_64, SYM_64;
694 def : MipsPat<(add GPR64:$hi, (MipsLo (i64 tconstpool:$lo))),
695 (DADDiu GPR64:$hi, tconstpool:$lo)>, ISA_MIPS3, GPR_64, SYM_64;
696 def : MipsPat<(add GPR64:$hi, (MipsLo (i64 tglobaltlsaddr:$lo))),
697 (DADDiu GPR64:$hi, tglobaltlsaddr:$lo)>, ISA_MIPS3, GPR_64,
702 def : MipsPat<(add GPR64:$gp, (MipsGPRel tglobaladdr:$in)),
703 (DADDiu GPR64:$gp, tglobaladdr:$in)>, ISA_MIPS3, ABI_N64;
704 def : MipsPat<(add GPR64:$gp, (MipsGPRel tconstpool:$in)),
705 (DADDiu GPR64:$gp, tconstpool:$in)>, ISA_MIPS3, ABI_N64;
707 def : WrapperPat<tglobaladdr, DADDiu, GPR64>, ISA_MIPS3, GPR_64;
708 def : WrapperPat<tconstpool, DADDiu, GPR64>, ISA_MIPS3, GPR_64;
709 def : WrapperPat<texternalsym, DADDiu, GPR64>, ISA_MIPS3, GPR_64;
710 def : WrapperPat<tblockaddress, DADDiu, GPR64>, ISA_MIPS3, GPR_64;
711 def : WrapperPat<tjumptable, DADDiu, GPR64>, ISA_MIPS3, GPR_64;
712 def : WrapperPat<tglobaltlsaddr, DADDiu, GPR64>, ISA_MIPS3, GPR_64;
715 defm : BrcondPats<GPR64, BEQ64, BEQ, BNE64, SLT64, SLTu64, SLTi64, SLTiu64,
716 ZERO_64>, ISA_MIPS3, GPR_64;
717 def : MipsPat<(brcond (i32 (setlt i64:$lhs, 1)), bb:$dst),
718 (BLEZ64 i64:$lhs, bb:$dst)>, ISA_MIPS3, GPR_64;
719 def : MipsPat<(brcond (i32 (setgt i64:$lhs, -1)), bb:$dst),
720 (BGEZ64 i64:$lhs, bb:$dst)>, ISA_MIPS3, GPR_64;
723 let AdditionalPredicates = [NotInMicroMips] in {
724 defm : SeteqPats<GPR64, SLTiu64, XOR64, SLTu64, ZERO_64>, ISA_MIPS3, GPR_64;
725 defm : SetlePats<GPR64, XORi, SLT64, SLTu64>, ISA_MIPS3, GPR_64;
726 defm : SetgtPats<GPR64, SLT64, SLTu64>, ISA_MIPS3, GPR_64;
727 defm : SetgePats<GPR64, XORi, SLT64, SLTu64>, ISA_MIPS3, GPR_64;
728 defm : SetgeImmPats<GPR64, XORi, SLTi64, SLTiu64>, ISA_MIPS3, GPR_64;
731 def : MipsPat<(trunc (assertsext GPR64:$src)),
732 (EXTRACT_SUBREG GPR64:$src, sub_32)>, ISA_MIPS3, GPR_64;
733 // The forward compatibility strategy employed by MIPS requires us to treat
734 // values as being sign extended to an infinite number of bits. This allows
735 // existing software to run without modification on any future MIPS
736 // implementation (e.g. 128-bit, or 1024-bit). Being compatible with this
737 // strategy requires that truncation acts as a sign-extension for values being
738 // fed into instructions operating on 32-bit values. Such instructions have
739 // undefined results if this is not true.
740 // For our case, this means that we can't issue an extract_subreg for nodes
741 // such as (trunc:i32 (assertzext:i64 X, i32)), because the sign-bit of the
742 // lower subreg would not be replicated into the upper half.
743 def : MipsPat<(trunc (assertzext_lt_i32 GPR64:$src)),
744 (EXTRACT_SUBREG GPR64:$src, sub_32)>, ISA_MIPS3, GPR_64;
745 def : MipsPat<(i32 (trunc GPR64:$src)),
746 (SLL (EXTRACT_SUBREG GPR64:$src, sub_32), 0)>, ISA_MIPS3, GPR_64;
748 // variable shift instructions patterns
749 def : MipsPat<(shl GPR64:$rt, (i32 (trunc GPR64:$rs))),
750 (DSLLV GPR64:$rt, (EXTRACT_SUBREG GPR64:$rs, sub_32))>,
752 def : MipsPat<(srl GPR64:$rt, (i32 (trunc GPR64:$rs))),
753 (DSRLV GPR64:$rt, (EXTRACT_SUBREG GPR64:$rs, sub_32))>,
755 def : MipsPat<(sra GPR64:$rt, (i32 (trunc GPR64:$rs))),
756 (DSRAV GPR64:$rt, (EXTRACT_SUBREG GPR64:$rs, sub_32))>,
758 def : MipsPat<(rotr GPR64:$rt, (i32 (trunc GPR64:$rs))),
759 (DROTRV GPR64:$rt, (EXTRACT_SUBREG GPR64:$rs, sub_32))>,
762 // 32-to-64-bit extension
763 def : MipsPat<(i64 (anyext GPR32:$src)),
764 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GPR32:$src, sub_32)>,
766 def : MipsPat<(i64 (zext GPR32:$src)), (DSRL (DSLL64_32 GPR32:$src), 32)>,
768 def : MipsPat<(i64 (sext GPR32:$src)), (SLL64_32 GPR32:$src)>, ISA_MIPS3,
771 let AdditionalPredicates = [NotInMicroMips] in {
772 def : MipsPat<(i64 (zext GPR32:$src)), (DEXT64_32 GPR32:$src, 0, 32)>,
773 ISA_MIPS64R2, GPR_64;
774 def : MipsPat<(i64 (zext (i32 (shl GPR32:$rt, immZExt5:$imm)))),
775 (CINS64_32 GPR32:$rt, imm:$imm, (immZExt5To31 imm:$imm))>,
776 ISA_MIPS64R2, GPR_64, ASE_MIPS64_CNMIPS;
779 // Sign extend in register
780 def : MipsPat<(i64 (sext_inreg GPR64:$src, i32)),
781 (SLL64_64 GPR64:$src)>, ISA_MIPS3, GPR_64;
784 def : MipsPat<(bswap GPR64:$rt), (DSHD (DSBH GPR64:$rt))>, ISA_MIPS64R2;
787 let AdditionalPredicates = [NotInMicroMips] in {
788 def : MipsPat<(subc GPR64:$lhs, GPR64:$rhs),
789 (DSUBu GPR64:$lhs, GPR64:$rhs)>, ISA_MIPS3, GPR_64;
790 def : MipsPat<(addc GPR64:$lhs, GPR64:$rhs),
791 (DADDu GPR64:$lhs, GPR64:$rhs)>, ISA_MIPS3, ASE_NOT_DSP, GPR_64;
792 def : MipsPat<(addc GPR64:$lhs, immSExt16:$imm),
793 (DADDiu GPR64:$lhs, imm:$imm)>, ISA_MIPS3, ASE_NOT_DSP, GPR_64;
796 // Octeon bbit0/bbit1 MipsPattern
797 def : MipsPat<(brcond (i32 (seteq (and i64:$lhs, PowerOf2LO:$mask), 0)), bb:$dst),
798 (BBIT0 i64:$lhs, (Log2LO PowerOf2LO:$mask), bb:$dst)>,
799 ISA_MIPS64R2, ASE_MIPS64_CNMIPS;
800 def : MipsPat<(brcond (i32 (seteq (and i64:$lhs, PowerOf2HI:$mask), 0)), bb:$dst),
801 (BBIT032 i64:$lhs, (Log2HI PowerOf2HI:$mask), bb:$dst)>,
802 ISA_MIPS64R2, ASE_MIPS64_CNMIPS;
803 def : MipsPat<(brcond (i32 (setne (and i64:$lhs, PowerOf2LO:$mask), 0)), bb:$dst),
804 (BBIT1 i64:$lhs, (Log2LO PowerOf2LO:$mask), bb:$dst)>,
805 ISA_MIPS64R2, ASE_MIPS64_CNMIPS;
806 def : MipsPat<(brcond (i32 (setne (and i64:$lhs, PowerOf2HI:$mask), 0)), bb:$dst),
807 (BBIT132 i64:$lhs, (Log2HI PowerOf2HI:$mask), bb:$dst)>,
808 ISA_MIPS64R2, ASE_MIPS64_CNMIPS;
809 def : MipsPat<(brcond (i32 (seteq (and i32:$lhs, PowerOf2LO_i32:$mask), 0)), bb:$dst),
810 (BBIT0 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), i32:$lhs, sub_32),
811 (Log2LO PowerOf2LO_i32:$mask), bb:$dst)>, ISA_MIPS64R2,
813 def : MipsPat<(brcond (i32 (setne (and i32:$lhs, PowerOf2LO_i32:$mask), 0)), bb:$dst),
814 (BBIT1 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), i32:$lhs, sub_32),
815 (Log2LO PowerOf2LO_i32:$mask), bb:$dst)>, ISA_MIPS64R2,
818 // Atomic load patterns.
819 def : MipsPat<(atomic_load_8 addr:$a), (LB64 addr:$a)>, ISA_MIPS3, GPR_64;
820 def : MipsPat<(atomic_load_16 addr:$a), (LH64 addr:$a)>, ISA_MIPS3, GPR_64;
821 def : MipsPat<(atomic_load_32 addr:$a), (LW64 addr:$a)>, ISA_MIPS3, GPR_64;
822 def : MipsPat<(atomic_load_64 addr:$a), (LD addr:$a)>, ISA_MIPS3, GPR_64;
824 // Atomic store patterns.
825 def : MipsPat<(atomic_store_8 addr:$a, GPR64:$v), (SB64 GPR64:$v, addr:$a)>,
827 def : MipsPat<(atomic_store_16 addr:$a, GPR64:$v), (SH64 GPR64:$v, addr:$a)>,
829 def : MipsPat<(atomic_store_32 addr:$a, GPR64:$v), (SW64 GPR64:$v, addr:$a)>,
831 def : MipsPat<(atomic_store_64 addr:$a, GPR64:$v), (SD GPR64:$v, addr:$a)>,
834 // Patterns used for matching away redundant sign extensions.
835 // MIPS32 arithmetic instructions sign extend their result implicitly.
836 def : MipsPat<(i64 (sext (i32 (add GPR32:$src, immSExt16:$imm16)))),
837 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
838 (ADDiu GPR32:$src, immSExt16:$imm16), sub_32)>;
839 def : MipsPat<(i64 (sext (i32 (add GPR32:$src, GPR32:$src2)))),
840 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
841 (ADDu GPR32:$src, GPR32:$src2), sub_32)>;
842 def : MipsPat<(i64 (sext (i32 (sub GPR32:$src, GPR32:$src2)))),
843 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
844 (SUBu GPR32:$src, GPR32:$src2), sub_32)>;
845 def : MipsPat<(i64 (sext (i32 (mul GPR32:$src, GPR32:$src2)))),
846 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
847 (MUL GPR32:$src, GPR32:$src2), sub_32)>, ISA_MIPS3_NOT_32R6_64R6;
848 def : MipsPat<(i64 (sext (i32 (MipsMFHI ACC64:$src)))),
849 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
850 (PseudoMFHI ACC64:$src), sub_32)>;
851 def : MipsPat<(i64 (sext (i32 (MipsMFLO ACC64:$src)))),
852 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
853 (PseudoMFLO ACC64:$src), sub_32)>;
854 def : MipsPat<(i64 (sext (i32 (shl GPR32:$src, immZExt5:$imm5)))),
855 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
856 (SLL GPR32:$src, immZExt5:$imm5), sub_32)>;
857 def : MipsPat<(i64 (sext (i32 (shl GPR32:$src, GPR32:$src2)))),
858 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
859 (SLLV GPR32:$src, GPR32:$src2), sub_32)>;
860 def : MipsPat<(i64 (sext (i32 (srl GPR32:$src, immZExt5:$imm5)))),
861 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
862 (SRL GPR32:$src, immZExt5:$imm5), sub_32)>;
863 def : MipsPat<(i64 (sext (i32 (srl GPR32:$src, GPR32:$src2)))),
864 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
865 (SRLV GPR32:$src, GPR32:$src2), sub_32)>;
866 def : MipsPat<(i64 (sext (i32 (sra GPR32:$src, immZExt5:$imm5)))),
867 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
868 (SRA GPR32:$src, immZExt5:$imm5), sub_32)>;
869 def : MipsPat<(i64 (sext (i32 (sra GPR32:$src, GPR32:$src2)))),
870 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
871 (SRAV GPR32:$src, GPR32:$src2), sub_32)>;
873 //===----------------------------------------------------------------------===//
874 // Instruction aliases
875 //===----------------------------------------------------------------------===//
876 let AdditionalPredicates = [NotInMicroMips] in {
877 def : MipsInstAlias<"move $dst, $src",
878 (OR64 GPR64Opnd:$dst, GPR64Opnd:$src, ZERO_64), 1>,
880 def : MipsInstAlias<"move $dst, $src",
881 (DADDu GPR64Opnd:$dst, GPR64Opnd:$src, ZERO_64), 1>,
883 def : MipsInstAlias<"dadd $rs, $rt, $imm",
884 (DADDi GPR64Opnd:$rs, GPR64Opnd:$rt, simm16_64:$imm),
885 0>, ISA_MIPS3_NOT_32R6_64R6;
886 def : MipsInstAlias<"dadd $rs, $imm",
887 (DADDi GPR64Opnd:$rs, GPR64Opnd:$rs, simm16_64:$imm),
888 0>, ISA_MIPS3_NOT_32R6_64R6;
889 def : MipsInstAlias<"daddu $rs, $rt, $imm",
890 (DADDiu GPR64Opnd:$rs, GPR64Opnd:$rt, simm16_64:$imm),
892 def : MipsInstAlias<"daddu $rs, $imm",
893 (DADDiu GPR64Opnd:$rs, GPR64Opnd:$rs, simm16_64:$imm),
896 defm : OneOrTwoOperandMacroImmediateAlias<"and", ANDi64, GPR64Opnd, imm64>,
899 defm : OneOrTwoOperandMacroImmediateAlias<"or", ORi64, GPR64Opnd, imm64>,
902 defm : OneOrTwoOperandMacroImmediateAlias<"xor", XORi64, GPR64Opnd, imm64>,
905 let AdditionalPredicates = [NotInMicroMips] in {
906 def : MipsInstAlias<"dneg $rt, $rs",
907 (DSUB GPR64Opnd:$rt, ZERO_64, GPR64Opnd:$rs), 1>,
909 def : MipsInstAlias<"dneg $rt",
910 (DSUB GPR64Opnd:$rt, ZERO_64, GPR64Opnd:$rt), 1>,
912 def : MipsInstAlias<"dnegu $rt, $rs",
913 (DSUBu GPR64Opnd:$rt, ZERO_64, GPR64Opnd:$rs), 1>,
915 def : MipsInstAlias<"dnegu $rt",
916 (DSUBu GPR64Opnd:$rt, ZERO_64, GPR64Opnd:$rt), 1>,
919 def : MipsInstAlias<"dsubi $rs, $rt, $imm",
920 (DADDi GPR64Opnd:$rs, GPR64Opnd:$rt,
921 InvertedImOperand64:$imm),
922 0>, ISA_MIPS3_NOT_32R6_64R6;
923 def : MipsInstAlias<"dsubi $rs, $imm",
924 (DADDi GPR64Opnd:$rs, GPR64Opnd:$rs,
925 InvertedImOperand64:$imm),
926 0>, ISA_MIPS3_NOT_32R6_64R6;
927 def : MipsInstAlias<"dsub $rs, $rt, $imm",
928 (DADDi GPR64Opnd:$rs, GPR64Opnd:$rt,
929 InvertedImOperand64:$imm),
930 0>, ISA_MIPS3_NOT_32R6_64R6;
931 def : MipsInstAlias<"dsub $rs, $imm",
932 (DADDi GPR64Opnd:$rs, GPR64Opnd:$rs,
933 InvertedImOperand64:$imm),
934 0>, ISA_MIPS3_NOT_32R6_64R6;
935 let AdditionalPredicates = [NotInMicroMips] in {
936 def : MipsInstAlias<"dsubu $rt, $rs, $imm",
937 (DADDiu GPR64Opnd:$rt, GPR64Opnd:$rs,
938 InvertedImOperand64:$imm), 0>, ISA_MIPS3;
939 def : MipsInstAlias<"dsubu $rs, $imm",
940 (DADDiu GPR64Opnd:$rs, GPR64Opnd:$rs,
941 InvertedImOperand64:$imm), 0>, ISA_MIPS3;
943 def : MipsInstAlias<"dsra $rd, $rt, $rs",
944 (DSRAV GPR64Opnd:$rd, GPR64Opnd:$rt, GPR32Opnd:$rs), 0>,
946 let AdditionalPredicates = [NotInMicroMips] in {
947 def : MipsInstAlias<"dsll $rd, $rt, $rs",
948 (DSLLV GPR64Opnd:$rd, GPR64Opnd:$rt, GPR32Opnd:$rs), 0>,
950 def : MipsInstAlias<"dsrl $rd, $rt, $rs",
951 (DSRLV GPR64Opnd:$rd, GPR64Opnd:$rt, GPR32Opnd:$rs), 0>,
953 def : MipsInstAlias<"dsrl $rd, $rt",
954 (DSRLV GPR64Opnd:$rd, GPR64Opnd:$rd, GPR32Opnd:$rt), 0>,
956 def : MipsInstAlias<"dsll $rd, $rt",
957 (DSLLV GPR64Opnd:$rd, GPR64Opnd:$rd, GPR32Opnd:$rt), 0>,
959 def : MipsInstAlias<"dins $rt, $rs, $pos, $size",
960 (DINSM GPR64Opnd:$rt, GPR64Opnd:$rs, uimm5:$pos,
961 uimm_range_2_64:$size), 0>, ISA_MIPS64R2;
962 def : MipsInstAlias<"dins $rt, $rs, $pos, $size",
963 (DINSU GPR64Opnd:$rt, GPR64Opnd:$rs, uimm5_plus32:$pos,
964 uimm5_plus1:$size), 0>, ISA_MIPS64R2;
965 def : MipsInstAlias<"dext $rt, $rs, $pos, $size",
966 (DEXTM GPR64Opnd:$rt, GPR64Opnd:$rs, uimm5:$pos,
967 uimm5_plus33:$size), 0>, ISA_MIPS64R2;
968 def : MipsInstAlias<"dext $rt, $rs, $pos, $size",
969 (DEXTU GPR64Opnd:$rt, GPR64Opnd:$rs, uimm5_plus32:$pos,
970 uimm5_plus1:$size), 0>, ISA_MIPS64R2;
971 def : MipsInstAlias<"jalr.hb $rs", (JALR_HB64 RA_64, GPR64Opnd:$rs), 1>,
973 // Two operand (implicit 0 selector) versions:
974 def : MipsInstAlias<"dmtc0 $rt, $rd",
975 (DMTC0 COP0Opnd:$rd, GPR64Opnd:$rt, 0), 0>;
976 def : MipsInstAlias<"dmfc0 $rt, $rd",
977 (DMFC0 GPR64Opnd:$rt, COP0Opnd:$rd, 0), 0>;
978 def : MipsInstAlias<"dmfgc0 $rt, $rd",
979 (DMFGC0 GPR64Opnd:$rt, COP0Opnd:$rd, 0), 0>,
980 ISA_MIPS64R5, ASE_VIRT;
981 def : MipsInstAlias<"dmtgc0 $rt, $rd",
982 (DMTGC0 COP0Opnd:$rd, GPR64Opnd:$rt, 0), 0>,
983 ISA_MIPS64R5, ASE_VIRT;
985 def : MipsInstAlias<"dmfc2 $rt, $rd", (DMFC2 GPR64Opnd:$rt, COP2Opnd:$rd, 0), 0>;
986 def : MipsInstAlias<"dmtc2 $rt, $rd", (DMTC2 COP2Opnd:$rd, GPR64Opnd:$rt, 0), 0>;
988 def : MipsInstAlias<"synciobdma", (SYNC 0x2), 0>, ASE_MIPS64_CNMIPS;
989 def : MipsInstAlias<"syncs", (SYNC 0x6), 0>, ASE_MIPS64_CNMIPS;
990 def : MipsInstAlias<"syncw", (SYNC 0x4), 0>, ASE_MIPS64_CNMIPS;
991 def : MipsInstAlias<"syncws", (SYNC 0x5), 0>, ASE_MIPS64_CNMIPS;
995 // bbit* with $p 32-63 converted to bbit*32 with $p 0-31
996 def : MipsInstAlias<"bbit0 $rs, $p, $offset",
997 (BBIT032 GPR64Opnd:$rs, uimm5_plus32_normalize_64:$p,
998 brtarget:$offset), 0>,
1000 def : MipsInstAlias<"bbit1 $rs, $p, $offset",
1001 (BBIT132 GPR64Opnd:$rs, uimm5_plus32_normalize_64:$p,
1002 brtarget:$offset), 0>,
1005 // exts with $pos 32-63 in converted to exts32 with $pos 0-31
1006 def : MipsInstAlias<"exts $rt, $rs, $pos, $lenm1",
1007 (EXTS32 GPR64Opnd:$rt, GPR64Opnd:$rs,
1008 uimm5_plus32_normalize:$pos, uimm5:$lenm1), 0>,
1010 def : MipsInstAlias<"exts $rt, $pos, $lenm1",
1011 (EXTS32 GPR64Opnd:$rt, GPR64Opnd:$rt,
1012 uimm5_plus32_normalize:$pos, uimm5:$lenm1), 0>,
1015 // cins with $pos 32-63 in converted to cins32 with $pos 0-31
1016 def : MipsInstAlias<"cins $rt, $rs, $pos, $lenm1",
1017 (CINS32 GPR64Opnd:$rt, GPR64Opnd:$rs,
1018 uimm5_plus32_normalize:$pos, uimm5:$lenm1), 0>,
1020 def : MipsInstAlias<"cins $rt, $pos, $lenm1",
1021 (CINS32 GPR64Opnd:$rt, GPR64Opnd:$rt,
1022 uimm5_plus32_normalize:$pos, uimm5:$lenm1), 0>,
1025 //===----------------------------------------------------------------------===//
1026 // Assembler Pseudo Instructions
1027 //===----------------------------------------------------------------------===//
1029 class LoadImmediate64<string instr_asm, Operand Od, RegisterOperand RO> :
1030 MipsAsmPseudoInst<(outs RO:$rt), (ins Od:$imm64),
1031 !strconcat(instr_asm, "\t$rt, $imm64")> ;
1032 def LoadImm64 : LoadImmediate64<"dli", imm64, GPR64Opnd>;
1034 def LoadAddrReg64 : MipsAsmPseudoInst<(outs GPR64Opnd:$rt), (ins mem:$addr),
1036 def LoadAddrImm64 : MipsAsmPseudoInst<(outs GPR64Opnd:$rt), (ins imm64:$imm64),
1037 "dla\t$rt, $imm64">;
1039 def DMULImmMacro : MipsAsmPseudoInst<(outs), (ins GPR64Opnd:$rs, GPR64Opnd:$rt,
1040 simm32_relaxed:$imm),
1041 "dmul\t$rs, $rt, $imm">,
1042 ISA_MIPS3_NOT_32R6_64R6;
1043 def DMULOMacro : MipsAsmPseudoInst<(outs), (ins GPR64Opnd:$rs, GPR64Opnd:$rt,
1045 "dmulo\t$rs, $rt, $rd">,
1046 ISA_MIPS3_NOT_32R6_64R6;
1047 def DMULOUMacro : MipsAsmPseudoInst<(outs), (ins GPR64Opnd:$rs, GPR64Opnd:$rt,
1049 "dmulou\t$rs, $rt, $rd">,
1050 ISA_MIPS3_NOT_32R6_64R6;
1052 def DMULMacro : MipsAsmPseudoInst<(outs), (ins GPR64Opnd:$rs, GPR64Opnd:$rt,
1054 "dmul\t$rs, $rt, $rd"> {
1055 let InsnPredicates = [HasMips3, NotMips64r6, NotCnMips];
1058 let AdditionalPredicates = [NotInMicroMips] in {
1059 def DSDivMacro : MipsAsmPseudoInst<(outs GPR64Opnd:$rd),
1060 (ins GPR64Opnd:$rs, GPR64Opnd:$rt),
1061 "ddiv\t$rd, $rs, $rt">,
1062 ISA_MIPS3_NOT_32R6_64R6;
1063 def DSDivIMacro : MipsAsmPseudoInst<(outs GPR64Opnd:$rd),
1064 (ins GPR64Opnd:$rs, imm64:$imm),
1065 "ddiv\t$rd, $rs, $imm">,
1066 ISA_MIPS3_NOT_32R6_64R6;
1067 def DUDivMacro : MipsAsmPseudoInst<(outs GPR64Opnd:$rd),
1068 (ins GPR64Opnd:$rs, GPR64Opnd:$rt),
1069 "ddivu\t$rd, $rs, $rt">,
1070 ISA_MIPS3_NOT_32R6_64R6;
1071 def DUDivIMacro : MipsAsmPseudoInst<(outs GPR64Opnd:$rd),
1072 (ins GPR64Opnd:$rs, imm64:$imm),
1073 "ddivu\t$rd, $rs, $imm">,
1074 ISA_MIPS3_NOT_32R6_64R6;
1076 // GAS expands 'div' and 'ddiv' differently when the destination
1077 // register is $zero and the instruction is in the two operand
1078 // form. 'ddiv' gets expanded, while 'div' is not expanded.
1080 def : MipsInstAlias<"ddiv $rs, $rt", (DSDivMacro GPR64Opnd:$rs,
1083 ISA_MIPS3_NOT_32R6_64R6;
1084 def : MipsInstAlias<"ddiv $rd, $imm", (DSDivIMacro GPR64Opnd:$rd,
1087 ISA_MIPS3_NOT_32R6_64R6;
1089 // GAS expands 'divu' and 'ddivu' differently when the destination
1090 // register is $zero and the instruction is in the two operand
1091 // form. 'ddivu' gets expanded, while 'divu' is not expanded.
1093 def : MipsInstAlias<"ddivu $rt, $rs", (DUDivMacro GPR64Opnd:$rt,
1096 ISA_MIPS3_NOT_32R6_64R6;
1097 def : MipsInstAlias<"ddivu $rd, $imm", (DUDivIMacro GPR64Opnd:$rd,
1100 ISA_MIPS3_NOT_32R6_64R6;
1101 def DSRemMacro : MipsAsmPseudoInst<(outs GPR64Opnd:$rd),
1102 (ins GPR64Opnd:$rs, GPR64Opnd:$rt),
1103 "drem\t$rd, $rs, $rt">,
1104 ISA_MIPS3_NOT_32R6_64R6;
1105 def DSRemIMacro : MipsAsmPseudoInst<(outs GPR64Opnd:$rd),
1106 (ins GPR64Opnd:$rs, simm32_relaxed:$imm),
1107 "drem\t$rd, $rs, $imm">,
1108 ISA_MIPS3_NOT_32R6_64R6;
1109 def DURemMacro : MipsAsmPseudoInst<(outs GPR64Opnd:$rd),
1110 (ins GPR64Opnd:$rs, GPR64Opnd:$rt),
1111 "dremu\t$rd, $rs, $rt">,
1112 ISA_MIPS3_NOT_32R6_64R6;
1113 def DURemIMacro : MipsAsmPseudoInst<(outs GPR64Opnd:$rd),
1114 (ins GPR64Opnd:$rs, simm32_relaxed:$imm),
1115 "dremu\t$rd, $rs, $imm">,
1116 ISA_MIPS3_NOT_32R6_64R6;
1117 def : MipsInstAlias<"drem $rt, $rs", (DSRemMacro GPR64Opnd:$rt,
1120 ISA_MIPS3_NOT_32R6_64R6;
1121 def : MipsInstAlias<"drem $rd, $imm", (DSRemIMacro GPR64Opnd:$rd,
1123 simm32_relaxed:$imm), 0>,
1124 ISA_MIPS3_NOT_32R6_64R6;
1125 def : MipsInstAlias<"dremu $rt, $rs", (DURemMacro GPR64Opnd:$rt,
1128 ISA_MIPS3_NOT_32R6_64R6;
1129 def : MipsInstAlias<"dremu $rd, $imm", (DURemIMacro GPR64Opnd:$rd,
1131 simm32_relaxed:$imm), 0>,
1132 ISA_MIPS3_NOT_32R6_64R6;
1135 def NORImm64 : NORIMM_DESC_BASE<GPR64Opnd, imm64>, GPR_64;
1136 def : MipsInstAlias<"nor\t$rs, $imm", (NORImm64 GPR64Opnd:$rs, GPR64Opnd:$rs,
1137 imm64:$imm)>, GPR_64;
1138 def SLTImm64 : MipsAsmPseudoInst<(outs GPR64Opnd:$rs),
1139 (ins GPR64Opnd:$rt, imm64:$imm),
1140 "slt\t$rs, $rt, $imm">, GPR_64;
1141 def : MipsInstAlias<"slt\t$rs, $imm", (SLTImm64 GPR64Opnd:$rs, GPR64Opnd:$rs,
1142 imm64:$imm)>, GPR_64;
1143 def SLTUImm64 : MipsAsmPseudoInst<(outs GPR64Opnd:$rs),
1144 (ins GPR64Opnd:$rt, imm64:$imm),
1145 "sltu\t$rs, $rt, $imm">, GPR_64;
1146 def : MipsInstAlias<"sltu\t$rs, $imm", (SLTUImm64 GPR64Opnd:$rs, GPR64Opnd:$rs,
1147 imm64:$imm)>, GPR_64;
1149 def : MipsInstAlias<"rdhwr $rt, $rs",
1150 (RDHWR64 GPR64Opnd:$rt, HWRegsOpnd:$rs, 0), 1>, GPR_64;