1 //===- Mips64InstrInfo.td - Mips64 Instruction Information -*- 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 // This file describes Mips64 instructions.
12 //===----------------------------------------------------------------------===//
14 //===----------------------------------------------------------------------===//
15 // Mips Operand, Complex Patterns and Transformations Definitions.
16 //===----------------------------------------------------------------------===//
18 // Instruction operand types
19 def shamt_64 : Operand<i64>;
22 def uimm16_64 : Operand<i64> {
23 let PrintMethod = "printUnsignedImm";
26 // Transformation Function - get Imm - 32.
27 def Subtract32 : SDNodeXForm<imm, [{
28 return getImm(N, (unsigned)N->getZExtValue() - 32);
31 // shamt must fit in 6 bits.
32 def immZExt6 : ImmLeaf<i32, [{return Imm == (Imm & 0x3f);}]>;
34 //===----------------------------------------------------------------------===//
35 // Instructions specific format
36 //===----------------------------------------------------------------------===//
37 let DecoderNamespace = "Mips64" in {
39 multiclass Atomic2Ops64<PatFrag Op> {
40 def NAME : Atomic2Ops<Op, CPU64Regs, CPURegs>,
41 Requires<[NotN64, HasStdEnc]>;
42 def _P8 : Atomic2Ops<Op, CPU64Regs, CPU64Regs>,
43 Requires<[IsN64, HasStdEnc]> {
44 let isCodeGenOnly = 1;
48 multiclass AtomicCmpSwap64<PatFrag Op> {
49 def NAME : AtomicCmpSwap<Op, CPU64Regs, CPURegs>,
50 Requires<[NotN64, HasStdEnc]>;
51 def _P8 : AtomicCmpSwap<Op, CPU64Regs, CPU64Regs>,
52 Requires<[IsN64, HasStdEnc]> {
53 let isCodeGenOnly = 1;
57 let usesCustomInserter = 1, Predicates = [HasStdEnc],
58 DecoderNamespace = "Mips64" in {
59 defm ATOMIC_LOAD_ADD_I64 : Atomic2Ops64<atomic_load_add_64>;
60 defm ATOMIC_LOAD_SUB_I64 : Atomic2Ops64<atomic_load_sub_64>;
61 defm ATOMIC_LOAD_AND_I64 : Atomic2Ops64<atomic_load_and_64>;
62 defm ATOMIC_LOAD_OR_I64 : Atomic2Ops64<atomic_load_or_64>;
63 defm ATOMIC_LOAD_XOR_I64 : Atomic2Ops64<atomic_load_xor_64>;
64 defm ATOMIC_LOAD_NAND_I64 : Atomic2Ops64<atomic_load_nand_64>;
65 defm ATOMIC_SWAP_I64 : Atomic2Ops64<atomic_swap_64>;
66 defm ATOMIC_CMP_SWAP_I64 : AtomicCmpSwap64<atomic_cmp_swap_64>;
69 //===----------------------------------------------------------------------===//
70 // Instruction definition
71 //===----------------------------------------------------------------------===//
72 let DecoderNamespace = "Mips64" in {
73 /// Arithmetic Instructions (ALU Immediate)
74 def DADDi : ArithLogicI<"daddi", simm16_64, CPU64RegsOpnd>, ADDI_FM<0x18>;
75 def DADDiu : ArithLogicI<"daddiu", simm16_64, CPU64RegsOpnd, immSExt16, add>,
76 ADDI_FM<0x19>, IsAsCheapAsAMove;
77 def DANDi : ArithLogicI<"andi", uimm16_64, CPU64RegsOpnd, immZExt16, and>,
79 def SLTi64 : SetCC_I<"slti", setlt, simm16_64, immSExt16, CPU64Regs>,
81 def SLTiu64 : SetCC_I<"sltiu", setult, simm16_64, immSExt16, CPU64Regs>,
83 def ORi64 : ArithLogicI<"ori", uimm16_64, CPU64RegsOpnd, immZExt16, or>,
85 def XORi64 : ArithLogicI<"xori", uimm16_64, CPU64RegsOpnd, immZExt16, xor>,
87 def LUi64 : LoadUpper<"lui", CPU64Regs, uimm16_64>, LUI_FM;
89 /// Arithmetic Instructions (3-Operand, R-Type)
90 def DADD : ArithLogicR<"dadd", CPU64RegsOpnd>, ADD_FM<0, 0x2c>;
91 def DADDu : ArithLogicR<"daddu", CPU64RegsOpnd, 1, IIAlu, add>,
93 def DSUBu : ArithLogicR<"dsubu", CPU64RegsOpnd, 0, IIAlu, sub>,
95 def SLT64 : SetCC_R<"slt", setlt, CPU64Regs>, ADD_FM<0, 0x2a>;
96 def SLTu64 : SetCC_R<"sltu", setult, CPU64Regs>, ADD_FM<0, 0x2b>;
97 def AND64 : ArithLogicR<"and", CPU64RegsOpnd, 1, IIAlu, and>, ADD_FM<0, 0x24>;
98 def OR64 : ArithLogicR<"or", CPU64RegsOpnd, 1, IIAlu, or>, ADD_FM<0, 0x25>;
99 def XOR64 : ArithLogicR<"xor", CPU64RegsOpnd, 1, IIAlu, xor>, ADD_FM<0, 0x26>;
100 def NOR64 : LogicNOR<"nor", CPU64RegsOpnd>, ADD_FM<0, 0x27>;
102 /// Shift Instructions
103 def DSLL : shift_rotate_imm<"dsll", shamt, CPU64RegsOpnd, shl, immZExt6>,
105 def DSRL : shift_rotate_imm<"dsrl", shamt, CPU64RegsOpnd, srl, immZExt6>,
107 def DSRA : shift_rotate_imm<"dsra", shamt, CPU64RegsOpnd, sra, immZExt6>,
109 def DSLLV : shift_rotate_reg<"dsllv", CPU64RegsOpnd, shl>, SRLV_FM<0x14, 0>;
110 def DSRLV : shift_rotate_reg<"dsrlv", CPU64RegsOpnd, srl>, SRLV_FM<0x16, 0>;
111 def DSRAV : shift_rotate_reg<"dsrav", CPU64RegsOpnd, sra>, SRLV_FM<0x17, 0>;
112 def DSLL32 : shift_rotate_imm<"dsll32", shamt, CPU64RegsOpnd>, SRA_FM<0x3c, 0>;
113 def DSRL32 : shift_rotate_imm<"dsrl32", shamt, CPU64RegsOpnd>, SRA_FM<0x3e, 0>;
114 def DSRA32 : shift_rotate_imm<"dsra32", shamt, CPU64RegsOpnd>, SRA_FM<0x3f, 0>;
116 // Rotate Instructions
117 let Predicates = [HasMips64r2, HasStdEnc],
118 DecoderNamespace = "Mips64" in {
119 def DROTR : shift_rotate_imm<"drotr", shamt, CPU64RegsOpnd, rotr, immZExt6>,
121 def DROTRV : shift_rotate_reg<"drotrv", CPU64RegsOpnd, rotr>, SRLV_FM<0x16, 1>;
124 let DecoderNamespace = "Mips64" in {
125 /// Load and Store Instructions
127 defm LB64 : LoadM<"lb", CPU64Regs, sextloadi8>, LW_FM<0x20>;
128 defm LBu64 : LoadM<"lbu", CPU64Regs, zextloadi8>, LW_FM<0x24>;
129 defm LH64 : LoadM<"lh", CPU64Regs, sextloadi16>, LW_FM<0x21>;
130 defm LHu64 : LoadM<"lhu", CPU64Regs, zextloadi16>, LW_FM<0x25>;
131 defm LW64 : LoadM<"lw", CPU64Regs, sextloadi32>, LW_FM<0x23>;
132 defm LWu64 : LoadM<"lwu", CPU64Regs, zextloadi32>, LW_FM<0x27>;
133 defm SB64 : StoreM<"sb", CPU64Regs, truncstorei8>, LW_FM<0x28>;
134 defm SH64 : StoreM<"sh", CPU64Regs, truncstorei16>, LW_FM<0x29>;
135 defm SW64 : StoreM<"sw", CPU64Regs, truncstorei32>, LW_FM<0x2b>;
136 defm LD : LoadM<"ld", CPU64Regs, load>, LW_FM<0x37>;
137 defm SD : StoreM<"sd", CPU64Regs, store>, LW_FM<0x3f>;
139 /// load/store left/right
140 defm LWL64 : LoadLeftRightM<"lwl", MipsLWL, CPU64Regs>, LW_FM<0x22>;
141 defm LWR64 : LoadLeftRightM<"lwr", MipsLWR, CPU64Regs>, LW_FM<0x26>;
142 defm SWL64 : StoreLeftRightM<"swl", MipsSWL, CPU64Regs>, LW_FM<0x2a>;
143 defm SWR64 : StoreLeftRightM<"swr", MipsSWR, CPU64Regs>, LW_FM<0x2e>;
145 defm LDL : LoadLeftRightM<"ldl", MipsLDL, CPU64Regs>, LW_FM<0x1a>;
146 defm LDR : LoadLeftRightM<"ldr", MipsLDR, CPU64Regs>, LW_FM<0x1b>;
147 defm SDL : StoreLeftRightM<"sdl", MipsSDL, CPU64Regs>, LW_FM<0x2c>;
148 defm SDR : StoreLeftRightM<"sdr", MipsSDR, CPU64Regs>, LW_FM<0x2d>;
150 /// Load-linked, Store-conditional
151 let Predicates = [NotN64, HasStdEnc] in {
152 def LLD : LLBase<"lld", CPU64RegsOpnd, mem>, LW_FM<0x34>;
153 def SCD : SCBase<"scd", CPU64RegsOpnd, mem>, LW_FM<0x3c>;
156 let Predicates = [IsN64, HasStdEnc], isCodeGenOnly = 1 in {
157 def LLD_P8 : LLBase<"lld", CPU64RegsOpnd, mem64>, LW_FM<0x34>;
158 def SCD_P8 : SCBase<"scd", CPU64RegsOpnd, mem64>, LW_FM<0x3c>;
161 /// Jump and Branch Instructions
162 def JR64 : IndirectBranch<CPU64Regs>, MTLO_FM<8>;
163 def BEQ64 : CBranch<"beq", seteq, CPU64Regs>, BEQ_FM<4>;
164 def BNE64 : CBranch<"bne", setne, CPU64Regs>, BEQ_FM<5>;
165 def BGEZ64 : CBranchZero<"bgez", setge, CPU64Regs>, BGEZ_FM<1, 1>;
166 def BGTZ64 : CBranchZero<"bgtz", setgt, CPU64Regs>, BGEZ_FM<7, 0>;
167 def BLEZ64 : CBranchZero<"blez", setle, CPU64Regs>, BGEZ_FM<6, 0>;
168 def BLTZ64 : CBranchZero<"bltz", setlt, CPU64Regs>, BGEZ_FM<1, 0>;
170 let DecoderNamespace = "Mips64" in
171 def JALR64 : JumpLinkReg<"jalr", CPU64Regs>, JALR_FM;
172 def TAILCALL64_R : JumpFR<CPU64Regs, MipsTailCall>, MTLO_FM<8>, IsTailCall;
174 let DecoderNamespace = "Mips64" in {
175 /// Multiply and Divide Instructions.
176 def DMULT : Mult<"dmult", IIImul, CPU64RegsOpnd, [HI64, LO64]>, MULT_FM<0, 0x1c>;
177 def DMULTu : Mult<"dmultu", IIImul, CPU64RegsOpnd, [HI64, LO64]>, MULT_FM<0, 0x1d>;
178 def DSDIV : Div<MipsDivRem, "ddiv", IIIdiv, CPU64RegsOpnd, [HI64, LO64]>,
180 def DUDIV : Div<MipsDivRemU, "ddivu", IIIdiv, CPU64RegsOpnd, [HI64, LO64]>,
183 def MTHI64 : MoveToLOHI<"mthi", CPU64Regs, [HI64]>, MTLO_FM<0x11>;
184 def MTLO64 : MoveToLOHI<"mtlo", CPU64Regs, [LO64]>, MTLO_FM<0x13>;
185 def MFHI64 : MoveFromLOHI<"mfhi", CPU64Regs, [HI64]>, MFLO_FM<0x10>;
186 def MFLO64 : MoveFromLOHI<"mflo", CPU64Regs, [LO64]>, MFLO_FM<0x12>;
188 /// Sign Ext In Register Instructions.
189 def SEB64 : SignExtInReg<"seb", i8, CPU64Regs>, SEB_FM<0x10, 0x20>;
190 def SEH64 : SignExtInReg<"seh", i16, CPU64Regs>, SEB_FM<0x18, 0x20>;
193 def DCLZ : CountLeading0<"dclz", CPU64RegsOpnd>, CLO_FM<0x24>;
194 def DCLO : CountLeading1<"dclo", CPU64RegsOpnd>, CLO_FM<0x25>;
196 /// Double Word Swap Bytes/HalfWords
197 def DSBH : SubwordSwap<"dsbh", CPU64RegsOpnd>, SEB_FM<2, 0x24>;
198 def DSHD : SubwordSwap<"dshd", CPU64RegsOpnd>, SEB_FM<5, 0x24>;
200 def LEA_ADDiu64 : EffectiveAddress<"daddiu", CPU64Regs, mem_ea_64>, LW_FM<0x19>;
203 let DecoderNamespace = "Mips64" in {
204 def RDHWR64 : ReadHardware<CPU64Regs, HW64RegsOpnd>, RDHWR_FM;
206 def DEXT : ExtBase<"dext", CPU64RegsOpnd>, EXT_FM<3>;
207 let Pattern = []<dag> in {
208 def DEXTU : ExtBase<"dextu", CPU64RegsOpnd>, EXT_FM<2>;
209 def DEXTM : ExtBase<"dextm", CPU64RegsOpnd>, EXT_FM<1>;
211 def DINS : InsBase<"dins", CPU64RegsOpnd>, EXT_FM<7>;
212 let Pattern = []<dag> in {
213 def DINSU : InsBase<"dinsu", CPU64RegsOpnd>, EXT_FM<6>;
214 def DINSM : InsBase<"dinsm", CPU64RegsOpnd>, EXT_FM<5>;
217 let isCodeGenOnly = 1, rs = 0, shamt = 0 in {
218 def DSLL64_32 : FR<0x00, 0x3c, (outs CPU64Regs:$rd), (ins CPURegs:$rt),
219 "dsll\t$rd, $rt, 32", [], IIAlu>;
220 def SLL64_32 : FR<0x0, 0x00, (outs CPU64Regs:$rd), (ins CPURegs:$rt),
221 "sll\t$rd, $rt, 0", [], IIAlu>;
222 def SLL64_64 : FR<0x0, 0x00, (outs CPU64Regs:$rd), (ins CPU64Regs:$rt),
223 "sll\t$rd, $rt, 0", [], IIAlu>;
226 //===----------------------------------------------------------------------===//
227 // Arbitrary patterns that map to one or more instructions
228 //===----------------------------------------------------------------------===//
231 let Predicates = [NotN64, HasStdEnc] in {
232 def : MipsPat<(i64 (extloadi1 addr:$src)), (LB64 addr:$src)>;
233 def : MipsPat<(i64 (extloadi8 addr:$src)), (LB64 addr:$src)>;
234 def : MipsPat<(i64 (extloadi16 addr:$src)), (LH64 addr:$src)>;
235 def : MipsPat<(i64 (extloadi32 addr:$src)), (LW64 addr:$src)>;
237 let Predicates = [IsN64, HasStdEnc] in {
238 def : MipsPat<(i64 (extloadi1 addr:$src)), (LB64_P8 addr:$src)>;
239 def : MipsPat<(i64 (extloadi8 addr:$src)), (LB64_P8 addr:$src)>;
240 def : MipsPat<(i64 (extloadi16 addr:$src)), (LH64_P8 addr:$src)>;
241 def : MipsPat<(i64 (extloadi32 addr:$src)), (LW64_P8 addr:$src)>;
245 def : MipsPat<(MipsHi tglobaladdr:$in), (LUi64 tglobaladdr:$in)>;
246 def : MipsPat<(MipsHi tblockaddress:$in), (LUi64 tblockaddress:$in)>;
247 def : MipsPat<(MipsHi tjumptable:$in), (LUi64 tjumptable:$in)>;
248 def : MipsPat<(MipsHi tconstpool:$in), (LUi64 tconstpool:$in)>;
249 def : MipsPat<(MipsHi tglobaltlsaddr:$in), (LUi64 tglobaltlsaddr:$in)>;
250 def : MipsPat<(MipsHi texternalsym:$in), (LUi64 texternalsym:$in)>;
252 def : MipsPat<(MipsLo tglobaladdr:$in), (DADDiu ZERO_64, tglobaladdr:$in)>;
253 def : MipsPat<(MipsLo tblockaddress:$in), (DADDiu ZERO_64, tblockaddress:$in)>;
254 def : MipsPat<(MipsLo tjumptable:$in), (DADDiu ZERO_64, tjumptable:$in)>;
255 def : MipsPat<(MipsLo tconstpool:$in), (DADDiu ZERO_64, tconstpool:$in)>;
256 def : MipsPat<(MipsLo tglobaltlsaddr:$in),
257 (DADDiu ZERO_64, tglobaltlsaddr:$in)>;
258 def : MipsPat<(MipsLo texternalsym:$in), (DADDiu ZERO_64, texternalsym:$in)>;
260 def : MipsPat<(add CPU64Regs:$hi, (MipsLo tglobaladdr:$lo)),
261 (DADDiu CPU64Regs:$hi, tglobaladdr:$lo)>;
262 def : MipsPat<(add CPU64Regs:$hi, (MipsLo tblockaddress:$lo)),
263 (DADDiu CPU64Regs:$hi, tblockaddress:$lo)>;
264 def : MipsPat<(add CPU64Regs:$hi, (MipsLo tjumptable:$lo)),
265 (DADDiu CPU64Regs:$hi, tjumptable:$lo)>;
266 def : MipsPat<(add CPU64Regs:$hi, (MipsLo tconstpool:$lo)),
267 (DADDiu CPU64Regs:$hi, tconstpool:$lo)>;
268 def : MipsPat<(add CPU64Regs:$hi, (MipsLo tglobaltlsaddr:$lo)),
269 (DADDiu CPU64Regs:$hi, tglobaltlsaddr:$lo)>;
271 def : WrapperPat<tglobaladdr, DADDiu, CPU64Regs>;
272 def : WrapperPat<tconstpool, DADDiu, CPU64Regs>;
273 def : WrapperPat<texternalsym, DADDiu, CPU64Regs>;
274 def : WrapperPat<tblockaddress, DADDiu, CPU64Regs>;
275 def : WrapperPat<tjumptable, DADDiu, CPU64Regs>;
276 def : WrapperPat<tglobaltlsaddr, DADDiu, CPU64Regs>;
278 defm : BrcondPats<CPU64Regs, BEQ64, BNE64, SLT64, SLTu64, SLTi64, SLTiu64,
282 defm : SeteqPats<CPU64Regs, SLTiu64, XOR64, SLTu64, ZERO_64>;
283 defm : SetlePats<CPU64Regs, SLT64, SLTu64>;
284 defm : SetgtPats<CPU64Regs, SLT64, SLTu64>;
285 defm : SetgePats<CPU64Regs, SLT64, SLTu64>;
286 defm : SetgeImmPats<CPU64Regs, SLTi64, SLTiu64>;
289 def : MipsPat<(i32 (trunc CPU64Regs:$src)),
290 (SLL (EXTRACT_SUBREG CPU64Regs:$src, sub_32), 0)>,
291 Requires<[IsN64, HasStdEnc]>;
293 // 32-to-64-bit extension
294 def : MipsPat<(i64 (anyext CPURegs:$src)), (SLL64_32 CPURegs:$src)>;
295 def : MipsPat<(i64 (zext CPURegs:$src)), (DSRL (DSLL64_32 CPURegs:$src), 32)>;
296 def : MipsPat<(i64 (sext CPURegs:$src)), (SLL64_32 CPURegs:$src)>;
298 // Sign extend in register
299 def : MipsPat<(i64 (sext_inreg CPU64Regs:$src, i32)),
300 (SLL64_64 CPU64Regs:$src)>;
303 def : MipsPat<(bswap CPU64Regs:$rt), (DSHD (DSBH CPU64Regs:$rt))>;
305 //===----------------------------------------------------------------------===//
306 // Instruction aliases
307 //===----------------------------------------------------------------------===//
308 def : InstAlias<"move $dst,$src", (DADDu CPU64RegsOpnd:$dst,
309 CPU64RegsOpnd:$src,ZERO_64)>,
310 Requires<[HasMips64]>;
311 def : InstAlias<"and $rs, $rt, $imm",
312 (DANDi CPU64RegsOpnd:$rs, CPU64RegsOpnd:$rt, uimm16_64:$imm)>,
313 Requires<[HasMips64]>;
314 def : InstAlias<"slt $rs, $rt, $imm",
315 (SLTi64 CPURegsOpnd:$rs, CPU64Regs:$rt, simm16_64:$imm)>,
316 Requires<[HasMips64]>;
317 def : InstAlias<"xor $rs, $rt, $imm",
318 (XORi64 CPU64RegsOpnd:$rs, CPU64RegsOpnd:$rt, uimm16_64:$imm)>,
319 Requires<[HasMips64]>;
320 def : InstAlias<"not $rt, $rs", (NOR64 CPU64RegsOpnd:$rt, CPU64RegsOpnd:$rs, ZERO_64)>,
321 Requires<[HasMips64]>;
322 def : InstAlias<"j $rs", (JR64 CPU64Regs:$rs)>, Requires<[HasMips64]>;
323 def : InstAlias<"daddu $rs, $rt, $imm",
324 (DADDiu CPU64RegsOpnd:$rs, CPU64RegsOpnd:$rt, simm16_64:$imm)>;
325 def : InstAlias<"dadd $rs, $rt, $imm",
326 (DADDi CPU64RegsOpnd:$rs, CPU64RegsOpnd:$rt, simm16_64:$imm)>;
328 /// Move between CPU and coprocessor registers
329 let DecoderNamespace = "Mips64" in {
330 def MFC0_3OP64 : MFC3OP<(outs CPU64Regs:$rt), (ins CPU64Regs:$rd, uimm16:$sel),
331 "mfc0\t$rt, $rd, $sel">, MFC3OP_FM<0x10, 0>;
332 def MTC0_3OP64 : MFC3OP<(outs CPU64Regs:$rd, uimm16:$sel), (ins CPU64Regs:$rt),
333 "mtc0\t$rt, $rd, $sel">, MFC3OP_FM<0x10, 4>;
334 def MFC2_3OP64 : MFC3OP<(outs CPU64Regs:$rt), (ins CPU64Regs:$rd, uimm16:$sel),
335 "mfc2\t$rt, $rd, $sel">, MFC3OP_FM<0x12, 0>;
336 def MTC2_3OP64 : MFC3OP<(outs CPU64Regs:$rd, uimm16:$sel), (ins CPU64Regs:$rt),
337 "mtc2\t$rt, $rd, $sel">, MFC3OP_FM<0x12, 4>;
338 def DMFC0_3OP64 : MFC3OP<(outs CPU64Regs:$rt), (ins CPU64Regs:$rd, uimm16:$sel),
339 "dmfc0\t$rt, $rd, $sel">, MFC3OP_FM<0x10, 1>;
340 def DMTC0_3OP64 : MFC3OP<(outs CPU64Regs:$rd, uimm16:$sel), (ins CPU64Regs:$rt),
341 "dmtc0\t$rt, $rd, $sel">, MFC3OP_FM<0x10, 5>;
342 def DMFC2_3OP64 : MFC3OP<(outs CPU64Regs:$rt), (ins CPU64Regs:$rd, uimm16:$sel),
343 "dmfc2\t$rt, $rd, $sel">, MFC3OP_FM<0x12, 1>;
344 def DMTC2_3OP64 : MFC3OP<(outs CPU64Regs:$rd, uimm16:$sel), (ins CPU64Regs:$rt),
345 "dmtc2\t$rt, $rd, $sel">, MFC3OP_FM<0x12, 5>;
347 // Two operand (implicit 0 selector) versions:
348 def : InstAlias<"mfc0 $rt, $rd", (MFC0_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>;
349 def : InstAlias<"mtc0 $rt, $rd", (MTC0_3OP64 CPU64Regs:$rd, 0, CPU64Regs:$rt)>;
350 def : InstAlias<"mfc2 $rt, $rd", (MFC2_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>;
351 def : InstAlias<"mtc2 $rt, $rd", (MTC2_3OP64 CPU64Regs:$rd, 0, CPU64Regs:$rt)>;
352 def : InstAlias<"dmfc0 $rt, $rd",
353 (DMFC0_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>;
354 def : InstAlias<"dmtc0 $rt, $rd",
355 (DMTC0_3OP64 CPU64Regs:$rd, 0, CPU64Regs:$rt)>;
356 def : InstAlias<"dmfc2 $rt, $rd",
357 (DMFC2_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>;
358 def : InstAlias<"dmtc2 $rt, $rd",
359 (DMTC2_3OP64 CPU64Regs:$rd, 0, CPU64Regs:$rt)>;