1 //===- MipsInstrInfo.td - Target Description for Mips Target -*- 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 contains the Mips implementation of the TargetInstrInfo class.
12 //===----------------------------------------------------------------------===//
15 //===----------------------------------------------------------------------===//
16 // Mips profiles and nodes
17 //===----------------------------------------------------------------------===//
19 def SDT_MipsJmpLink : SDTypeProfile<0, 1, [SDTCisVT<0, iPTR>]>;
20 def SDT_MipsCMov : SDTypeProfile<1, 4, [SDTCisSameAs<0, 1>,
24 def SDT_MipsCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
25 def SDT_MipsCallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>, SDTCisVT<1, i32>]>;
26 def SDT_MipsMAddMSub : SDTypeProfile<0, 4,
27 [SDTCisVT<0, i32>, SDTCisSameAs<0, 1>,
30 def SDT_MipsDivRem : SDTypeProfile<0, 2,
34 def SDT_MipsThreadPointer : SDTypeProfile<1, 0, [SDTCisPtrTy<0>]>;
36 def SDT_Sync : SDTypeProfile<0, 1, [SDTCisVT<0, i32>]>;
38 def SDT_Ext : SDTypeProfile<1, 3, [SDTCisInt<0>, SDTCisSameAs<0, 1>,
39 SDTCisVT<2, i32>, SDTCisSameAs<2, 3>]>;
40 def SDT_Ins : SDTypeProfile<1, 4, [SDTCisInt<0>, SDTCisSameAs<0, 1>,
41 SDTCisVT<2, i32>, SDTCisSameAs<2, 3>,
44 def SDTMipsLoadLR : SDTypeProfile<1, 2,
45 [SDTCisInt<0>, SDTCisPtrTy<1>,
49 def MipsJmpLink : SDNode<"MipsISD::JmpLink",SDT_MipsJmpLink,
50 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
54 def MipsTailCall : SDNode<"MipsISD::TailCall", SDT_MipsJmpLink,
55 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
57 // Hi and Lo nodes are used to handle global addresses. Used on
58 // MipsISelLowering to lower stuff like GlobalAddress, ExternalSymbol
59 // static model. (nothing to do with Mips Registers Hi and Lo)
60 def MipsHi : SDNode<"MipsISD::Hi", SDTIntUnaryOp>;
61 def MipsLo : SDNode<"MipsISD::Lo", SDTIntUnaryOp>;
62 def MipsGPRel : SDNode<"MipsISD::GPRel", SDTIntUnaryOp>;
64 // TlsGd node is used to handle General Dynamic TLS
65 def MipsTlsGd : SDNode<"MipsISD::TlsGd", SDTIntUnaryOp>;
67 // TprelHi and TprelLo nodes are used to handle Local Exec TLS
68 def MipsTprelHi : SDNode<"MipsISD::TprelHi", SDTIntUnaryOp>;
69 def MipsTprelLo : SDNode<"MipsISD::TprelLo", SDTIntUnaryOp>;
72 def MipsThreadPointer: SDNode<"MipsISD::ThreadPointer", SDT_MipsThreadPointer>;
75 def MipsRet : SDNode<"MipsISD::Ret", SDTNone, [SDNPHasChain, SDNPOptInGlue]>;
77 // These are target-independent nodes, but have target-specific formats.
78 def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_MipsCallSeqStart,
79 [SDNPHasChain, SDNPSideEffect, SDNPOutGlue]>;
80 def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_MipsCallSeqEnd,
81 [SDNPHasChain, SDNPSideEffect,
82 SDNPOptInGlue, SDNPOutGlue]>;
85 def MipsMAdd : SDNode<"MipsISD::MAdd", SDT_MipsMAddMSub,
86 [SDNPOptInGlue, SDNPOutGlue]>;
87 def MipsMAddu : SDNode<"MipsISD::MAddu", SDT_MipsMAddMSub,
88 [SDNPOptInGlue, SDNPOutGlue]>;
89 def MipsMSub : SDNode<"MipsISD::MSub", SDT_MipsMAddMSub,
90 [SDNPOptInGlue, SDNPOutGlue]>;
91 def MipsMSubu : SDNode<"MipsISD::MSubu", SDT_MipsMAddMSub,
92 [SDNPOptInGlue, SDNPOutGlue]>;
95 def MipsDivRem : SDNode<"MipsISD::DivRem", SDT_MipsDivRem,
97 def MipsDivRemU : SDNode<"MipsISD::DivRemU", SDT_MipsDivRem,
100 // Target constant nodes that are not part of any isel patterns and remain
101 // unchanged can cause instructions with illegal operands to be emitted.
102 // Wrapper node patterns give the instruction selector a chance to replace
103 // target constant nodes that would otherwise remain unchanged with ADDiu
104 // nodes. Without these wrapper node patterns, the following conditional move
105 // instrucion is emitted when function cmov2 in test/CodeGen/Mips/cmov.ll is
107 // movn %got(d)($gp), %got(c)($gp), $4
108 // This instruction is illegal since movn can take only register operands.
110 def MipsWrapper : SDNode<"MipsISD::Wrapper", SDTIntBinOp>;
112 def MipsSync : SDNode<"MipsISD::Sync", SDT_Sync, [SDNPHasChain,SDNPSideEffect]>;
114 def MipsExt : SDNode<"MipsISD::Ext", SDT_Ext>;
115 def MipsIns : SDNode<"MipsISD::Ins", SDT_Ins>;
117 def MipsLWL : SDNode<"MipsISD::LWL", SDTMipsLoadLR,
118 [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
119 def MipsLWR : SDNode<"MipsISD::LWR", SDTMipsLoadLR,
120 [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
121 def MipsSWL : SDNode<"MipsISD::SWL", SDTStore,
122 [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
123 def MipsSWR : SDNode<"MipsISD::SWR", SDTStore,
124 [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
125 def MipsLDL : SDNode<"MipsISD::LDL", SDTMipsLoadLR,
126 [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
127 def MipsLDR : SDNode<"MipsISD::LDR", SDTMipsLoadLR,
128 [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
129 def MipsSDL : SDNode<"MipsISD::SDL", SDTStore,
130 [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
131 def MipsSDR : SDNode<"MipsISD::SDR", SDTStore,
132 [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
134 //===----------------------------------------------------------------------===//
135 // Mips Instruction Predicate Definitions.
136 //===----------------------------------------------------------------------===//
137 def HasSEInReg : Predicate<"Subtarget.hasSEInReg()">,
138 AssemblerPredicate<"FeatureSEInReg">;
139 def HasBitCount : Predicate<"Subtarget.hasBitCount()">,
140 AssemblerPredicate<"FeatureBitCount">;
141 def HasSwap : Predicate<"Subtarget.hasSwap()">,
142 AssemblerPredicate<"FeatureSwap">;
143 def HasCondMov : Predicate<"Subtarget.hasCondMov()">,
144 AssemblerPredicate<"FeatureCondMov">;
145 def HasFPIdx : Predicate<"Subtarget.hasFPIdx()">,
146 AssemblerPredicate<"FeatureFPIdx">;
147 def HasMips32 : Predicate<"Subtarget.hasMips32()">,
148 AssemblerPredicate<"FeatureMips32">;
149 def HasMips32r2 : Predicate<"Subtarget.hasMips32r2()">,
150 AssemblerPredicate<"FeatureMips32r2">;
151 def HasMips64 : Predicate<"Subtarget.hasMips64()">,
152 AssemblerPredicate<"FeatureMips64">;
153 def NotMips64 : Predicate<"!Subtarget.hasMips64()">,
154 AssemblerPredicate<"!FeatureMips64">;
155 def HasMips64r2 : Predicate<"Subtarget.hasMips64r2()">,
156 AssemblerPredicate<"FeatureMips64r2">;
157 def IsN64 : Predicate<"Subtarget.isABI_N64()">,
158 AssemblerPredicate<"FeatureN64">;
159 def NotN64 : Predicate<"!Subtarget.isABI_N64()">,
160 AssemblerPredicate<"!FeatureN64">;
161 def InMips16Mode : Predicate<"Subtarget.inMips16Mode()">,
162 AssemblerPredicate<"FeatureMips16">;
163 def RelocStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">,
164 AssemblerPredicate<"FeatureMips32">;
165 def RelocPIC : Predicate<"TM.getRelocationModel() == Reloc::PIC_">,
166 AssemblerPredicate<"FeatureMips32">;
167 def NoNaNsFPMath : Predicate<"TM.Options.NoNaNsFPMath">,
168 AssemblerPredicate<"FeatureMips32">;
169 def HasStdEnc : Predicate<"Subtarget.hasStandardEncoding()">,
170 AssemblerPredicate<"!FeatureMips16">;
172 class MipsPat<dag pattern, dag result> : Pat<pattern, result> {
173 let Predicates = [HasStdEnc];
177 bit isCommutable = 1;
194 bit isTerminator = 1;
197 bit hasExtraSrcRegAllocReq = 1;
198 bit isCodeGenOnly = 1;
201 class IsAsCheapAsAMove {
202 bit isAsCheapAsAMove = 1;
205 class NeverHasSideEffects {
206 bit neverHasSideEffects = 1;
209 //===----------------------------------------------------------------------===//
210 // Instruction format superclass
211 //===----------------------------------------------------------------------===//
213 include "MipsInstrFormats.td"
215 //===----------------------------------------------------------------------===//
216 // Mips Operand, Complex Patterns and Transformations Definitions.
217 //===----------------------------------------------------------------------===//
219 // Instruction operand types
220 def jmptarget : Operand<OtherVT> {
221 let EncoderMethod = "getJumpTargetOpValue";
223 def brtarget : Operand<OtherVT> {
224 let EncoderMethod = "getBranchTargetOpValue";
225 let OperandType = "OPERAND_PCREL";
226 let DecoderMethod = "DecodeBranchTarget";
228 def calltarget : Operand<iPTR> {
229 let EncoderMethod = "getJumpTargetOpValue";
231 def calltarget64: Operand<i64>;
232 def simm16 : Operand<i32> {
233 let DecoderMethod= "DecodeSimm16";
235 def simm16_64 : Operand<i64>;
236 def shamt : Operand<i32>;
239 def uimm16 : Operand<i32> {
240 let PrintMethod = "printUnsignedImm";
243 def MipsMemAsmOperand : AsmOperandClass {
245 let ParserMethod = "parseMemOperand";
249 def mem : Operand<i32> {
250 let PrintMethod = "printMemOperand";
251 let MIOperandInfo = (ops CPURegs, simm16);
252 let EncoderMethod = "getMemEncoding";
253 let ParserMatchClass = MipsMemAsmOperand;
256 def mem64 : Operand<i64> {
257 let PrintMethod = "printMemOperand";
258 let MIOperandInfo = (ops CPU64Regs, simm16_64);
259 let EncoderMethod = "getMemEncoding";
260 let ParserMatchClass = MipsMemAsmOperand;
263 def mem_ea : Operand<i32> {
264 let PrintMethod = "printMemOperandEA";
265 let MIOperandInfo = (ops CPURegs, simm16);
266 let EncoderMethod = "getMemEncoding";
269 def mem_ea_64 : Operand<i64> {
270 let PrintMethod = "printMemOperandEA";
271 let MIOperandInfo = (ops CPU64Regs, simm16_64);
272 let EncoderMethod = "getMemEncoding";
275 // size operand of ext instruction
276 def size_ext : Operand<i32> {
277 let EncoderMethod = "getSizeExtEncoding";
278 let DecoderMethod = "DecodeExtSize";
281 // size operand of ins instruction
282 def size_ins : Operand<i32> {
283 let EncoderMethod = "getSizeInsEncoding";
284 let DecoderMethod = "DecodeInsSize";
287 // Transformation Function - get the lower 16 bits.
288 def LO16 : SDNodeXForm<imm, [{
289 return getImm(N, N->getZExtValue() & 0xFFFF);
292 // Transformation Function - get the higher 16 bits.
293 def HI16 : SDNodeXForm<imm, [{
294 return getImm(N, (N->getZExtValue() >> 16) & 0xFFFF);
297 // Node immediate fits as 16-bit sign extended on target immediate.
299 def immSExt16 : PatLeaf<(imm), [{ return isInt<16>(N->getSExtValue()); }]>;
301 // Node immediate fits as 16-bit zero extended on target immediate.
302 // The LO16 param means that only the lower 16 bits of the node
303 // immediate are caught.
305 def immZExt16 : PatLeaf<(imm), [{
306 if (N->getValueType(0) == MVT::i32)
307 return (uint32_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
309 return (uint64_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
312 // Immediate can be loaded with LUi (32-bit int with lower 16-bit cleared).
313 def immLow16Zero : PatLeaf<(imm), [{
314 int64_t Val = N->getSExtValue();
315 return isInt<32>(Val) && !(Val & 0xffff);
318 // shamt field must fit in 5 bits.
319 def immZExt5 : ImmLeaf<i32, [{return Imm == (Imm & 0x1f);}]>;
321 // Mips Address Mode! SDNode frameindex could possibily be a match
322 // since load and store instructions from stack used it.
324 ComplexPattern<iPTR, 2, "SelectAddr", [frameindex], [SDNPWantParent]>;
326 //===----------------------------------------------------------------------===//
327 // Instructions specific format
328 //===----------------------------------------------------------------------===//
330 /// Move Control Registers From/To CPU Registers
331 def MFC0_3OP : MFC3OP<0x10, 0, (outs CPURegs:$rt),
332 (ins CPURegs:$rd, uimm16:$sel),"mfc0\t$rt, $rd, $sel">;
333 def : InstAlias<"mfc0 $rt, $rd", (MFC0_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
335 def MTC0_3OP : MFC3OP<0x10, 4, (outs CPURegs:$rd, uimm16:$sel),
336 (ins CPURegs:$rt),"mtc0\t$rt, $rd, $sel">;
337 def : InstAlias<"mtc0 $rt, $rd", (MTC0_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
339 def MFC2_3OP : MFC3OP<0x12, 0, (outs CPURegs:$rt),
340 (ins CPURegs:$rd, uimm16:$sel),"mfc2\t$rt, $rd, $sel">;
341 def : InstAlias<"mfc2 $rt, $rd", (MFC2_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
343 def MTC2_3OP : MFC3OP<0x12, 4, (outs CPURegs:$rd, uimm16:$sel),
344 (ins CPURegs:$rt),"mtc2\t$rt, $rd, $sel">;
345 def : InstAlias<"mtc2 $rt, $rd", (MTC2_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
347 // Arithmetic and logical instructions with 3 register operands.
348 class ArithLogicR<bits<6> op, bits<6> func, string instr_asm, SDNode OpNode,
349 InstrItinClass itin, RegisterClass RC, bit isComm = 0>:
350 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
351 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
352 [(set RC:$rd, (OpNode RC:$rs, RC:$rt))], itin> {
354 let isCommutable = isComm;
355 let isReMaterializable = 1;
358 class ArithOverflowR<bits<6> op, bits<6> func, string instr_asm,
359 InstrItinClass itin, RegisterClass RC, bit isComm = 0>:
360 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
361 !strconcat(instr_asm, "\t$rd, $rs, $rt"), [], itin> {
363 let isCommutable = isComm;
366 // Arithmetic and logical instructions with 2 register operands.
367 class ArithLogicI<bits<6> op, string instr_asm, SDNode OpNode,
368 Operand Od, PatLeaf imm_type, RegisterClass RC> :
369 FI<op, (outs RC:$rt), (ins RC:$rs, Od:$imm16),
370 !strconcat(instr_asm, "\t$rt, $rs, $imm16"),
371 [(set RC:$rt, (OpNode RC:$rs, imm_type:$imm16))], IIAlu> {
372 let isReMaterializable = 1;
375 class ArithOverflowI<bits<6> op, string instr_asm, SDNode OpNode,
376 Operand Od, PatLeaf imm_type, RegisterClass RC> :
377 FI<op, (outs RC:$rt), (ins RC:$rs, Od:$imm16),
378 !strconcat(instr_asm, "\t$rt, $rs, $imm16"), [], IIAlu>;
380 // Arithmetic Multiply ADD/SUB
381 let rd = 0, shamt = 0, Defs = [HI, LO], Uses = [HI, LO] in
382 class MArithR<bits<6> func, string instr_asm, SDNode op, bit isComm = 0> :
383 FR<0x1c, func, (outs), (ins CPURegs:$rs, CPURegs:$rt),
384 !strconcat(instr_asm, "\t$rs, $rt"),
385 [(op CPURegs:$rs, CPURegs:$rt, LO, HI)], IIImul> {
388 let isCommutable = isComm;
392 class LogicNOR<bits<6> op, bits<6> func, string instr_asm, RegisterClass RC>:
393 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
394 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
395 [(set RC:$rd, (not (or RC:$rs, RC:$rt)))], IIAlu> {
397 let isCommutable = 1;
401 class shift_rotate_imm<bits<6> func, bits<5> isRotate, string instr_asm,
402 SDNode OpNode, PatFrag PF, Operand ImmOpnd,
404 FR<0x00, func, (outs RC:$rd), (ins RC:$rt, ImmOpnd:$shamt),
405 !strconcat(instr_asm, "\t$rd, $rt, $shamt"),
406 [(set RC:$rd, (OpNode RC:$rt, PF:$shamt))], IIAlu> {
410 // 32-bit shift instructions.
411 class shift_rotate_imm32<bits<6> func, bits<5> isRotate, string instr_asm,
413 shift_rotate_imm<func, isRotate, instr_asm, OpNode, immZExt5, shamt, CPURegs>;
415 class shift_rotate_reg<bits<6> func, bits<5> isRotate, string instr_asm,
416 SDNode OpNode, RegisterClass RC>:
417 FR<0x00, func, (outs RC:$rd), (ins CPURegs:$rs, RC:$rt),
418 !strconcat(instr_asm, "\t$rd, $rt, $rs"),
419 [(set RC:$rd, (OpNode RC:$rt, CPURegs:$rs))], IIAlu> {
420 let shamt = isRotate;
423 // Load Upper Imediate
424 class LoadUpper<bits<6> op, string instr_asm, RegisterClass RC, Operand Imm>:
425 FI<op, (outs RC:$rt), (ins Imm:$imm16),
426 !strconcat(instr_asm, "\t$rt, $imm16"), [], IIAlu>, IsAsCheapAsAMove {
428 let neverHasSideEffects = 1;
429 let isReMaterializable = 1;
432 class FMem<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
433 InstrItinClass itin>: FFI<op, outs, ins, asmstr, pattern> {
435 let Inst{25-21} = addr{20-16};
436 let Inst{15-0} = addr{15-0};
437 let DecoderMethod = "DecodeMem";
441 let canFoldAsLoad = 1 in
442 class LoadM<bits<6> op, string instr_asm, PatFrag OpNode, RegisterClass RC,
443 Operand MemOpnd, bit Pseudo>:
444 FMem<op, (outs RC:$rt), (ins MemOpnd:$addr),
445 !strconcat(instr_asm, "\t$rt, $addr"),
446 [(set RC:$rt, (OpNode addr:$addr))], IILoad> {
447 let isPseudo = Pseudo;
450 class StoreM<bits<6> op, string instr_asm, PatFrag OpNode, RegisterClass RC,
451 Operand MemOpnd, bit Pseudo>:
452 FMem<op, (outs), (ins RC:$rt, MemOpnd:$addr),
453 !strconcat(instr_asm, "\t$rt, $addr"),
454 [(OpNode RC:$rt, addr:$addr)], IIStore> {
455 let isPseudo = Pseudo;
459 multiclass LoadM32<bits<6> op, string instr_asm, PatFrag OpNode,
461 def #NAME# : LoadM<op, instr_asm, OpNode, CPURegs, mem, Pseudo>,
462 Requires<[NotN64, HasStdEnc]>;
463 def _P8 : LoadM<op, instr_asm, OpNode, CPURegs, mem64, Pseudo>,
464 Requires<[IsN64, HasStdEnc]> {
465 let DecoderNamespace = "Mips64";
466 let isCodeGenOnly = 1;
471 multiclass LoadM64<bits<6> op, string instr_asm, PatFrag OpNode,
473 def #NAME# : LoadM<op, instr_asm, OpNode, CPU64Regs, mem, Pseudo>,
474 Requires<[NotN64, HasStdEnc]>;
475 def _P8 : LoadM<op, instr_asm, OpNode, CPU64Regs, mem64, Pseudo>,
476 Requires<[IsN64, HasStdEnc]> {
477 let DecoderNamespace = "Mips64";
478 let isCodeGenOnly = 1;
483 multiclass StoreM32<bits<6> op, string instr_asm, PatFrag OpNode,
485 def #NAME# : StoreM<op, instr_asm, OpNode, CPURegs, mem, Pseudo>,
486 Requires<[NotN64, HasStdEnc]>;
487 def _P8 : StoreM<op, instr_asm, OpNode, CPURegs, mem64, Pseudo>,
488 Requires<[IsN64, HasStdEnc]> {
489 let DecoderNamespace = "Mips64";
490 let isCodeGenOnly = 1;
495 multiclass StoreM64<bits<6> op, string instr_asm, PatFrag OpNode,
497 def #NAME# : StoreM<op, instr_asm, OpNode, CPU64Regs, mem, Pseudo>,
498 Requires<[NotN64, HasStdEnc]>;
499 def _P8 : StoreM<op, instr_asm, OpNode, CPU64Regs, mem64, Pseudo>,
500 Requires<[IsN64, HasStdEnc]> {
501 let DecoderNamespace = "Mips64";
502 let isCodeGenOnly = 1;
506 // Load/Store Left/Right
507 let canFoldAsLoad = 1 in
508 class LoadLeftRight<bits<6> op, string instr_asm, SDNode OpNode,
509 RegisterClass RC, Operand MemOpnd> :
510 FMem<op, (outs RC:$rt), (ins MemOpnd:$addr, RC:$src),
511 !strconcat(instr_asm, "\t$rt, $addr"),
512 [(set RC:$rt, (OpNode addr:$addr, RC:$src))], IILoad> {
513 string Constraints = "$src = $rt";
516 class StoreLeftRight<bits<6> op, string instr_asm, SDNode OpNode,
517 RegisterClass RC, Operand MemOpnd>:
518 FMem<op, (outs), (ins RC:$rt, MemOpnd:$addr),
519 !strconcat(instr_asm, "\t$rt, $addr"), [(OpNode RC:$rt, addr:$addr)],
522 // 32-bit load left/right.
523 multiclass LoadLeftRightM32<bits<6> op, string instr_asm, SDNode OpNode> {
524 def #NAME# : LoadLeftRight<op, instr_asm, OpNode, CPURegs, mem>,
525 Requires<[NotN64, HasStdEnc]>;
526 def _P8 : LoadLeftRight<op, instr_asm, OpNode, CPURegs, mem64>,
527 Requires<[IsN64, HasStdEnc]> {
528 let DecoderNamespace = "Mips64";
529 let isCodeGenOnly = 1;
533 // 64-bit load left/right.
534 multiclass LoadLeftRightM64<bits<6> op, string instr_asm, SDNode OpNode> {
535 def #NAME# : LoadLeftRight<op, instr_asm, OpNode, CPU64Regs, mem>,
536 Requires<[NotN64, HasStdEnc]>;
537 def _P8 : LoadLeftRight<op, instr_asm, OpNode, CPU64Regs, mem64>,
538 Requires<[IsN64, HasStdEnc]> {
539 let DecoderNamespace = "Mips64";
540 let isCodeGenOnly = 1;
544 // 32-bit store left/right.
545 multiclass StoreLeftRightM32<bits<6> op, string instr_asm, SDNode OpNode> {
546 def #NAME# : StoreLeftRight<op, instr_asm, OpNode, CPURegs, mem>,
547 Requires<[NotN64, HasStdEnc]>;
548 def _P8 : StoreLeftRight<op, instr_asm, OpNode, CPURegs, mem64>,
549 Requires<[IsN64, HasStdEnc]> {
550 let DecoderNamespace = "Mips64";
551 let isCodeGenOnly = 1;
555 // 64-bit store left/right.
556 multiclass StoreLeftRightM64<bits<6> op, string instr_asm, SDNode OpNode> {
557 def #NAME# : StoreLeftRight<op, instr_asm, OpNode, CPU64Regs, mem>,
558 Requires<[NotN64, HasStdEnc]>;
559 def _P8 : StoreLeftRight<op, instr_asm, OpNode, CPU64Regs, mem64>,
560 Requires<[IsN64, HasStdEnc]> {
561 let DecoderNamespace = "Mips64";
562 let isCodeGenOnly = 1;
566 // Conditional Branch
567 class CBranch<bits<6> op, string instr_asm, PatFrag cond_op, RegisterClass RC>:
568 BranchBase<op, (outs), (ins RC:$rs, RC:$rt, brtarget:$imm16),
569 !strconcat(instr_asm, "\t$rs, $rt, $imm16"),
570 [(brcond (i32 (cond_op RC:$rs, RC:$rt)), bb:$imm16)], IIBranch> {
572 let isTerminator = 1;
573 let hasDelaySlot = 1;
577 class CBranchZero<bits<6> op, bits<5> _rt, string instr_asm, PatFrag cond_op,
579 BranchBase<op, (outs), (ins RC:$rs, brtarget:$imm16),
580 !strconcat(instr_asm, "\t$rs, $imm16"),
581 [(brcond (i32 (cond_op RC:$rs, 0)), bb:$imm16)], IIBranch> {
584 let isTerminator = 1;
585 let hasDelaySlot = 1;
590 class SetCC_R<bits<6> op, bits<6> func, string instr_asm, PatFrag cond_op,
592 FR<op, func, (outs CPURegs:$rd), (ins RC:$rs, RC:$rt),
593 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
594 [(set CPURegs:$rd, (cond_op RC:$rs, RC:$rt))],
599 class SetCC_I<bits<6> op, string instr_asm, PatFrag cond_op, Operand Od,
600 PatLeaf imm_type, RegisterClass RC>:
601 FI<op, (outs CPURegs:$rt), (ins RC:$rs, Od:$imm16),
602 !strconcat(instr_asm, "\t$rt, $rs, $imm16"),
603 [(set CPURegs:$rt, (cond_op RC:$rs, imm_type:$imm16))],
607 class JumpFJ<bits<6> op, DAGOperand opnd, string instr_asm,
608 SDPatternOperator operator, SDPatternOperator targetoperator>:
609 FJ<op, (outs), (ins opnd:$target), !strconcat(instr_asm, "\t$target"),
610 [(operator targetoperator:$target)], IIBranch> {
613 let hasDelaySlot = 1;
614 let DecoderMethod = "DecodeJumpTarget";
618 // Unconditional branch
619 class UncondBranch<bits<6> op, string instr_asm>:
620 BranchBase<op, (outs), (ins brtarget:$imm16),
621 !strconcat(instr_asm, "\t$imm16"), [(br bb:$imm16)], IIBranch> {
625 let isTerminator = 1;
627 let hasDelaySlot = 1;
628 let Predicates = [RelocPIC, HasStdEnc];
632 // Base class for indirect branch and return instruction classes.
633 let isTerminator=1, isBarrier=1, hasDelaySlot = 1 in
634 class JumpFR<RegisterClass RC, SDPatternOperator operator = null_frag>:
635 FR<0, 0x8, (outs), (ins RC:$rs), "jr\t$rs", [(operator RC:$rs)], IIBranch> {
642 class IndirectBranch<RegisterClass RC>: JumpFR<RC, brind> {
644 let isIndirectBranch = 1;
647 // Return instruction
648 class RetBase<RegisterClass RC>: JumpFR<RC> {
650 let isCodeGenOnly = 1;
652 let hasExtraSrcRegAllocReq = 1;
655 // Jump and Link (Call)
656 let isCall=1, hasDelaySlot=1, Defs = [RA] in {
657 class JumpLink<bits<6> op, string instr_asm>:
658 FJ<op, (outs), (ins calltarget:$target),
659 !strconcat(instr_asm, "\t$target"), [(MipsJmpLink imm:$target)],
661 let DecoderMethod = "DecodeJumpTarget";
664 class JumpLinkReg<bits<6> op, bits<6> func, string instr_asm,
666 FR<op, func, (outs), (ins RC:$rs),
667 !strconcat(instr_asm, "\t$rs"), [(MipsJmpLink RC:$rs)], IIBranch> {
673 class BranchLink<string instr_asm, bits<5> _rt, RegisterClass RC>:
674 FI<0x1, (outs), (ins RC:$rs, brtarget:$imm16),
675 !strconcat(instr_asm, "\t$rs, $imm16"), [], IIBranch> {
681 class Mult<bits<6> func, string instr_asm, InstrItinClass itin,
682 RegisterClass RC, list<Register> DefRegs>:
683 FR<0x00, func, (outs), (ins RC:$rs, RC:$rt),
684 !strconcat(instr_asm, "\t$rs, $rt"), [], itin> {
687 let isCommutable = 1;
689 let neverHasSideEffects = 1;
692 class Mult32<bits<6> func, string instr_asm, InstrItinClass itin>:
693 Mult<func, instr_asm, itin, CPURegs, [HI, LO]>;
695 class Div<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin,
696 RegisterClass RC, list<Register> DefRegs>:
697 FR<0x00, func, (outs), (ins RC:$rs, RC:$rt),
698 !strconcat(instr_asm, "\t$$zero, $rs, $rt"),
699 [(op RC:$rs, RC:$rt)], itin> {
705 class Div32<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin>:
706 Div<op, func, instr_asm, itin, CPURegs, [HI, LO]>;
709 class MoveFromLOHI<bits<6> func, string instr_asm, RegisterClass RC,
710 list<Register> UseRegs>:
711 FR<0x00, func, (outs RC:$rd), (ins),
712 !strconcat(instr_asm, "\t$rd"), [], IIHiLo> {
717 let neverHasSideEffects = 1;
720 class MoveToLOHI<bits<6> func, string instr_asm, RegisterClass RC,
721 list<Register> DefRegs>:
722 FR<0x00, func, (outs), (ins RC:$rs),
723 !strconcat(instr_asm, "\t$rs"), [], IIHiLo> {
728 let neverHasSideEffects = 1;
731 class EffectiveAddress<bits<6> opc, string instr_asm, RegisterClass RC, Operand Mem> :
732 FMem<opc, (outs RC:$rt), (ins Mem:$addr),
733 instr_asm, [(set RC:$rt, addr:$addr)], IIAlu> {
734 let isCodeGenOnly = 1;
737 // Count Leading Ones/Zeros in Word
738 class CountLeading0<bits<6> func, string instr_asm, RegisterClass RC>:
739 FR<0x1c, func, (outs RC:$rd), (ins RC:$rs),
740 !strconcat(instr_asm, "\t$rd, $rs"),
741 [(set RC:$rd, (ctlz RC:$rs))], IIAlu>,
742 Requires<[HasBitCount, HasStdEnc]> {
747 class CountLeading1<bits<6> func, string instr_asm, RegisterClass RC>:
748 FR<0x1c, func, (outs RC:$rd), (ins RC:$rs),
749 !strconcat(instr_asm, "\t$rd, $rs"),
750 [(set RC:$rd, (ctlz (not RC:$rs)))], IIAlu>,
751 Requires<[HasBitCount, HasStdEnc]> {
756 // Sign Extend in Register.
757 class SignExtInReg<bits<5> sa, string instr_asm, ValueType vt,
759 FR<0x1f, 0x20, (outs RC:$rd), (ins RC:$rt),
760 !strconcat(instr_asm, "\t$rd, $rt"),
761 [(set RC:$rd, (sext_inreg RC:$rt, vt))], NoItinerary> {
764 let Predicates = [HasSEInReg, HasStdEnc];
768 class SubwordSwap<bits<6> func, bits<5> sa, string instr_asm, RegisterClass RC>:
769 FR<0x1f, func, (outs RC:$rd), (ins RC:$rt),
770 !strconcat(instr_asm, "\t$rd, $rt"), [], NoItinerary> {
773 let Predicates = [HasSwap, HasStdEnc];
774 let neverHasSideEffects = 1;
778 class ReadHardware<RegisterClass CPURegClass, RegisterClass HWRegClass>
779 : FR<0x1f, 0x3b, (outs CPURegClass:$rt), (ins HWRegClass:$rd),
780 "rdhwr\t$rt, $rd", [], IIAlu> {
786 class ExtBase<bits<6> _funct, string instr_asm, RegisterClass RC>:
787 FR<0x1f, _funct, (outs RC:$rt), (ins RC:$rs, uimm16:$pos, size_ext:$sz),
788 !strconcat(instr_asm, " $rt, $rs, $pos, $sz"),
789 [(set RC:$rt, (MipsExt RC:$rs, imm:$pos, imm:$sz))], NoItinerary> {
794 let Predicates = [HasMips32r2, HasStdEnc];
797 class InsBase<bits<6> _funct, string instr_asm, RegisterClass RC>:
798 FR<0x1f, _funct, (outs RC:$rt),
799 (ins RC:$rs, uimm16:$pos, size_ins:$sz, RC:$src),
800 !strconcat(instr_asm, " $rt, $rs, $pos, $sz"),
801 [(set RC:$rt, (MipsIns RC:$rs, imm:$pos, imm:$sz, RC:$src))],
807 let Predicates = [HasMips32r2, HasStdEnc];
808 let Constraints = "$src = $rt";
811 // Atomic instructions with 2 source operands (ATOMIC_SWAP & ATOMIC_LOAD_*).
812 class Atomic2Ops<PatFrag Op, string Opstr, RegisterClass DRC,
814 PseudoSE<(outs DRC:$dst), (ins PRC:$ptr, DRC:$incr),
815 !strconcat("atomic_", Opstr, "\t$dst, $ptr, $incr"),
816 [(set DRC:$dst, (Op PRC:$ptr, DRC:$incr))]>;
818 multiclass Atomic2Ops32<PatFrag Op, string Opstr> {
819 def #NAME# : Atomic2Ops<Op, Opstr, CPURegs, CPURegs>,
820 Requires<[NotN64, HasStdEnc]>;
821 def _P8 : Atomic2Ops<Op, Opstr, CPURegs, CPU64Regs>,
822 Requires<[IsN64, HasStdEnc]> {
823 let DecoderNamespace = "Mips64";
827 // Atomic Compare & Swap.
828 class AtomicCmpSwap<PatFrag Op, string Width, RegisterClass DRC,
830 PseudoSE<(outs DRC:$dst), (ins PRC:$ptr, DRC:$cmp, DRC:$swap),
831 !strconcat("atomic_cmp_swap_", Width, "\t$dst, $ptr, $cmp, $swap"),
832 [(set DRC:$dst, (Op PRC:$ptr, DRC:$cmp, DRC:$swap))]>;
834 multiclass AtomicCmpSwap32<PatFrag Op, string Width> {
835 def #NAME# : AtomicCmpSwap<Op, Width, CPURegs, CPURegs>,
836 Requires<[NotN64, HasStdEnc]>;
837 def _P8 : AtomicCmpSwap<Op, Width, CPURegs, CPU64Regs>,
838 Requires<[IsN64, HasStdEnc]> {
839 let DecoderNamespace = "Mips64";
843 class LLBase<bits<6> Opc, string opstring, RegisterClass RC, Operand Mem> :
844 FMem<Opc, (outs RC:$rt), (ins Mem:$addr),
845 !strconcat(opstring, "\t$rt, $addr"), [], IILoad> {
849 class SCBase<bits<6> Opc, string opstring, RegisterClass RC, Operand Mem> :
850 FMem<Opc, (outs RC:$dst), (ins RC:$rt, Mem:$addr),
851 !strconcat(opstring, "\t$rt, $addr"), [], IIStore> {
853 let Constraints = "$rt = $dst";
856 //===----------------------------------------------------------------------===//
857 // Pseudo instructions
858 //===----------------------------------------------------------------------===//
861 let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1, hasCtrlDep=1 in
862 def RetRA : PseudoSE<(outs), (ins), "", [(MipsRet)]>;
864 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
865 def ADJCALLSTACKDOWN : MipsPseudo<(outs), (ins i32imm:$amt),
866 "!ADJCALLSTACKDOWN $amt",
867 [(callseq_start timm:$amt)]>;
868 def ADJCALLSTACKUP : MipsPseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
869 "!ADJCALLSTACKUP $amt1",
870 [(callseq_end timm:$amt1, timm:$amt2)]>;
873 // When handling PIC code the assembler needs .cpload and .cprestore
874 // directives. If the real instructions corresponding these directives
875 // are used, we have the same behavior, but get also a bunch of warnings
876 // from the assembler.
877 let neverHasSideEffects = 1 in
878 def CPRESTORE : PseudoSE<(outs), (ins i32imm:$loc, CPURegs:$gp),
879 ".cprestore\t$loc", []>;
881 let usesCustomInserter = 1 in {
882 defm ATOMIC_LOAD_ADD_I8 : Atomic2Ops32<atomic_load_add_8, "load_add_8">;
883 defm ATOMIC_LOAD_ADD_I16 : Atomic2Ops32<atomic_load_add_16, "load_add_16">;
884 defm ATOMIC_LOAD_ADD_I32 : Atomic2Ops32<atomic_load_add_32, "load_add_32">;
885 defm ATOMIC_LOAD_SUB_I8 : Atomic2Ops32<atomic_load_sub_8, "load_sub_8">;
886 defm ATOMIC_LOAD_SUB_I16 : Atomic2Ops32<atomic_load_sub_16, "load_sub_16">;
887 defm ATOMIC_LOAD_SUB_I32 : Atomic2Ops32<atomic_load_sub_32, "load_sub_32">;
888 defm ATOMIC_LOAD_AND_I8 : Atomic2Ops32<atomic_load_and_8, "load_and_8">;
889 defm ATOMIC_LOAD_AND_I16 : Atomic2Ops32<atomic_load_and_16, "load_and_16">;
890 defm ATOMIC_LOAD_AND_I32 : Atomic2Ops32<atomic_load_and_32, "load_and_32">;
891 defm ATOMIC_LOAD_OR_I8 : Atomic2Ops32<atomic_load_or_8, "load_or_8">;
892 defm ATOMIC_LOAD_OR_I16 : Atomic2Ops32<atomic_load_or_16, "load_or_16">;
893 defm ATOMIC_LOAD_OR_I32 : Atomic2Ops32<atomic_load_or_32, "load_or_32">;
894 defm ATOMIC_LOAD_XOR_I8 : Atomic2Ops32<atomic_load_xor_8, "load_xor_8">;
895 defm ATOMIC_LOAD_XOR_I16 : Atomic2Ops32<atomic_load_xor_16, "load_xor_16">;
896 defm ATOMIC_LOAD_XOR_I32 : Atomic2Ops32<atomic_load_xor_32, "load_xor_32">;
897 defm ATOMIC_LOAD_NAND_I8 : Atomic2Ops32<atomic_load_nand_8, "load_nand_8">;
898 defm ATOMIC_LOAD_NAND_I16 : Atomic2Ops32<atomic_load_nand_16, "load_nand_16">;
899 defm ATOMIC_LOAD_NAND_I32 : Atomic2Ops32<atomic_load_nand_32, "load_nand_32">;
901 defm ATOMIC_SWAP_I8 : Atomic2Ops32<atomic_swap_8, "swap_8">;
902 defm ATOMIC_SWAP_I16 : Atomic2Ops32<atomic_swap_16, "swap_16">;
903 defm ATOMIC_SWAP_I32 : Atomic2Ops32<atomic_swap_32, "swap_32">;
905 defm ATOMIC_CMP_SWAP_I8 : AtomicCmpSwap32<atomic_cmp_swap_8, "8">;
906 defm ATOMIC_CMP_SWAP_I16 : AtomicCmpSwap32<atomic_cmp_swap_16, "16">;
907 defm ATOMIC_CMP_SWAP_I32 : AtomicCmpSwap32<atomic_cmp_swap_32, "32">;
910 //===----------------------------------------------------------------------===//
911 // Instruction definition
912 //===----------------------------------------------------------------------===//
914 class LoadImm32< string instr_asm, Operand Od, RegisterClass RC> :
915 MipsAsmPseudoInst<(outs RC:$rt), (ins Od:$imm32),
916 !strconcat(instr_asm, "\t$rt, $imm32")> ;
917 def LoadImm32Reg : LoadImm32<"li", shamt,CPURegs>;
919 class LoadAddress<string instr_asm, Operand MemOpnd, RegisterClass RC> :
920 MipsAsmPseudoInst<(outs RC:$rt), (ins MemOpnd:$addr),
921 !strconcat(instr_asm, "\t$rt, $addr")> ;
922 def LoadAddr32Reg : LoadAddress<"la", mem, CPURegs>;
924 class LoadAddressImm<string instr_asm, Operand Od, RegisterClass RC> :
925 MipsAsmPseudoInst<(outs RC:$rt), (ins Od:$imm32),
926 !strconcat(instr_asm, "\t$rt, $imm32")> ;
927 def LoadAddr32Imm : LoadAddressImm<"la", shamt,CPURegs>;
929 //===----------------------------------------------------------------------===//
930 // MipsI Instructions
931 //===----------------------------------------------------------------------===//
933 /// Arithmetic Instructions (ALU Immediate)
934 def ADDiu : ArithLogicI<0x09, "addiu", add, simm16, immSExt16, CPURegs>,
936 def ADDi : ArithOverflowI<0x08, "addi", add, simm16, immSExt16, CPURegs>;
937 def SLTi : SetCC_I<0x0a, "slti", setlt, simm16, immSExt16, CPURegs>;
938 def SLTiu : SetCC_I<0x0b, "sltiu", setult, simm16, immSExt16, CPURegs>;
939 def ANDi : ArithLogicI<0x0c, "andi", and, uimm16, immZExt16, CPURegs>;
940 def ORi : ArithLogicI<0x0d, "ori", or, uimm16, immZExt16, CPURegs>;
941 def XORi : ArithLogicI<0x0e, "xori", xor, uimm16, immZExt16, CPURegs>;
942 def LUi : LoadUpper<0x0f, "lui", CPURegs, uimm16>;
944 /// Arithmetic Instructions (3-Operand, R-Type)
945 def ADDu : ArithLogicR<0x00, 0x21, "addu", add, IIAlu, CPURegs, 1>;
946 def SUBu : ArithLogicR<0x00, 0x23, "subu", sub, IIAlu, CPURegs>;
947 def ADD : ArithOverflowR<0x00, 0x20, "add", IIAlu, CPURegs, 1>;
948 def SUB : ArithOverflowR<0x00, 0x22, "sub", IIAlu, CPURegs>;
949 def SLT : SetCC_R<0x00, 0x2a, "slt", setlt, CPURegs>;
950 def SLTu : SetCC_R<0x00, 0x2b, "sltu", setult, CPURegs>;
951 def AND : ArithLogicR<0x00, 0x24, "and", and, IIAlu, CPURegs, 1>;
952 def OR : ArithLogicR<0x00, 0x25, "or", or, IIAlu, CPURegs, 1>;
953 def XOR : ArithLogicR<0x00, 0x26, "xor", xor, IIAlu, CPURegs, 1>;
954 def NOR : LogicNOR<0x00, 0x27, "nor", CPURegs>;
956 /// Shift Instructions
957 def SLL : shift_rotate_imm32<0x00, 0x00, "sll", shl>;
958 def SRL : shift_rotate_imm32<0x02, 0x00, "srl", srl>;
959 def SRA : shift_rotate_imm32<0x03, 0x00, "sra", sra>;
960 def SLLV : shift_rotate_reg<0x04, 0x00, "sllv", shl, CPURegs>;
961 def SRLV : shift_rotate_reg<0x06, 0x00, "srlv", srl, CPURegs>;
962 def SRAV : shift_rotate_reg<0x07, 0x00, "srav", sra, CPURegs>;
964 // Rotate Instructions
965 let Predicates = [HasMips32r2, HasStdEnc] in {
966 def ROTR : shift_rotate_imm32<0x02, 0x01, "rotr", rotr>;
967 def ROTRV : shift_rotate_reg<0x06, 0x01, "rotrv", rotr, CPURegs>;
970 /// Load and Store Instructions
972 defm LB : LoadM32<0x20, "lb", sextloadi8>;
973 defm LBu : LoadM32<0x24, "lbu", zextloadi8>;
974 defm LH : LoadM32<0x21, "lh", sextloadi16>;
975 defm LHu : LoadM32<0x25, "lhu", zextloadi16>;
976 defm LW : LoadM32<0x23, "lw", load>;
977 defm SB : StoreM32<0x28, "sb", truncstorei8>;
978 defm SH : StoreM32<0x29, "sh", truncstorei16>;
979 defm SW : StoreM32<0x2b, "sw", store>;
981 /// load/store left/right
982 defm LWL : LoadLeftRightM32<0x22, "lwl", MipsLWL>;
983 defm LWR : LoadLeftRightM32<0x26, "lwr", MipsLWR>;
984 defm SWL : StoreLeftRightM32<0x2a, "swl", MipsSWL>;
985 defm SWR : StoreLeftRightM32<0x2e, "swr", MipsSWR>;
987 let hasSideEffects = 1 in
988 def SYNC : InstSE<(outs), (ins i32imm:$stype), "sync $stype",
989 [(MipsSync imm:$stype)], NoItinerary, FrmOther>
994 let Inst{10-6} = stype;
998 /// Load-linked, Store-conditional
999 def LL : LLBase<0x30, "ll", CPURegs, mem>,
1000 Requires<[NotN64, HasStdEnc]>;
1001 def LL_P8 : LLBase<0x30, "ll", CPURegs, mem64>,
1002 Requires<[IsN64, HasStdEnc]> {
1003 let DecoderNamespace = "Mips64";
1006 def SC : SCBase<0x38, "sc", CPURegs, mem>,
1007 Requires<[NotN64, HasStdEnc]>;
1008 def SC_P8 : SCBase<0x38, "sc", CPURegs, mem64>,
1009 Requires<[IsN64, HasStdEnc]> {
1010 let DecoderNamespace = "Mips64";
1013 /// Jump and Branch Instructions
1014 def J : JumpFJ<0x02, jmptarget, "j", br, bb>,
1015 Requires<[RelocStatic, HasStdEnc]>, IsBranch;
1016 def JR : IndirectBranch<CPURegs>;
1017 def B : UncondBranch<0x04, "b">;
1018 def BEQ : CBranch<0x04, "beq", seteq, CPURegs>;
1019 def BNE : CBranch<0x05, "bne", setne, CPURegs>;
1020 def BGEZ : CBranchZero<0x01, 1, "bgez", setge, CPURegs>;
1021 def BGTZ : CBranchZero<0x07, 0, "bgtz", setgt, CPURegs>;
1022 def BLEZ : CBranchZero<0x06, 0, "blez", setle, CPURegs>;
1023 def BLTZ : CBranchZero<0x01, 0, "bltz", setlt, CPURegs>;
1025 let rt = 0, rs = 0, isBranch = 1, isTerminator = 1, isBarrier = 1,
1026 hasDelaySlot = 1, Defs = [RA] in
1027 def BAL_BR: FI<0x1, (outs), (ins brtarget:$imm16), "bal\t$imm16", [], IIBranch>;
1029 def JAL : JumpLink<0x03, "jal">;
1030 def JALR : JumpLinkReg<0x00, 0x09, "jalr", CPURegs>;
1031 def BGEZAL : BranchLink<"bgezal", 0x11, CPURegs>;
1032 def BLTZAL : BranchLink<"bltzal", 0x10, CPURegs>;
1033 def TAILCALL : JumpFJ<0x02, calltarget, "j", MipsTailCall, imm>, IsTailCall;
1034 def TAILCALL_R : JumpFR<CPURegs, MipsTailCall>, IsTailCall;
1036 def RET : RetBase<CPURegs>;
1038 /// Multiply and Divide Instructions.
1039 def MULT : Mult32<0x18, "mult", IIImul>;
1040 def MULTu : Mult32<0x19, "multu", IIImul>;
1041 def SDIV : Div32<MipsDivRem, 0x1a, "div", IIIdiv>;
1042 def UDIV : Div32<MipsDivRemU, 0x1b, "divu", IIIdiv>;
1044 def MTHI : MoveToLOHI<0x11, "mthi", CPURegs, [HI]>;
1045 def MTLO : MoveToLOHI<0x13, "mtlo", CPURegs, [LO]>;
1046 def MFHI : MoveFromLOHI<0x10, "mfhi", CPURegs, [HI]>;
1047 def MFLO : MoveFromLOHI<0x12, "mflo", CPURegs, [LO]>;
1049 /// Sign Ext In Register Instructions.
1050 def SEB : SignExtInReg<0x10, "seb", i8, CPURegs>;
1051 def SEH : SignExtInReg<0x18, "seh", i16, CPURegs>;
1054 def CLZ : CountLeading0<0x20, "clz", CPURegs>;
1055 def CLO : CountLeading1<0x21, "clo", CPURegs>;
1057 /// Word Swap Bytes Within Halfwords
1058 def WSBH : SubwordSwap<0x20, 0x2, "wsbh", CPURegs>;
1062 def NOP : FJ<0, (outs), (ins), "nop", [], IIAlu>;
1064 // FrameIndexes are legalized when they are operands from load/store
1065 // instructions. The same not happens for stack address copies, so an
1066 // add op with mem ComplexPattern is used and the stack address copy
1067 // can be matched. It's similar to Sparc LEA_ADDRi
1068 def LEA_ADDiu : EffectiveAddress<0x09,"addiu\t$rt, $addr", CPURegs, mem_ea>;
1071 def MADD : MArithR<0, "madd", MipsMAdd, 1>;
1072 def MADDU : MArithR<1, "maddu", MipsMAddu, 1>;
1073 def MSUB : MArithR<4, "msub", MipsMSub>;
1074 def MSUBU : MArithR<5, "msubu", MipsMSubu>;
1076 // MUL is a assembly macro in the current used ISAs. In recent ISA's
1077 // it is a real instruction.
1078 def MUL : ArithLogicR<0x1c, 0x02, "mul", mul, IIImul, CPURegs, 1>,
1079 Requires<[HasStdEnc]>;
1081 def RDHWR : ReadHardware<CPURegs, HWRegs>;
1083 def EXT : ExtBase<0, "ext", CPURegs>;
1084 def INS : InsBase<4, "ins", CPURegs>;
1086 //===----------------------------------------------------------------------===//
1087 // Instruction aliases
1088 //===----------------------------------------------------------------------===//
1089 def : InstAlias<"move $dst,$src", (ADD CPURegs:$dst,CPURegs:$src,ZERO)>;
1090 def : InstAlias<"bal $offset", (BGEZAL RA,brtarget:$offset)>;
1091 def : InstAlias<"addu $rs,$rt,$imm",
1092 (ADDiu CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1093 def : InstAlias<"add $rs,$rt,$imm",
1094 (ADDi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1095 def : InstAlias<"and $rs,$rt,$imm",
1096 (ANDi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1097 def : InstAlias<"j $rs", (JR CPURegs:$rs)>;
1098 def : InstAlias<"not $rt,$rs", (NOR CPURegs:$rt,CPURegs:$rs,ZERO)>;
1099 def : InstAlias<"neg $rt,$rs", (SUB CPURegs:$rt,ZERO,CPURegs:$rs)>;
1100 def : InstAlias<"negu $rt,$rs", (SUBu CPURegs:$rt,ZERO,CPURegs:$rs)>;
1101 def : InstAlias<"slt $rs,$rt,$imm",
1102 (SLTi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1103 def : InstAlias<"xor $rs,$rt,$imm",
1104 (XORi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1106 //===----------------------------------------------------------------------===//
1107 // Arbitrary patterns that map to one or more instructions
1108 //===----------------------------------------------------------------------===//
1111 def : MipsPat<(i32 immSExt16:$in),
1112 (ADDiu ZERO, imm:$in)>;
1113 def : MipsPat<(i32 immZExt16:$in),
1114 (ORi ZERO, imm:$in)>;
1115 def : MipsPat<(i32 immLow16Zero:$in),
1116 (LUi (HI16 imm:$in))>;
1118 // Arbitrary immediates
1119 def : MipsPat<(i32 imm:$imm),
1120 (ORi (LUi (HI16 imm:$imm)), (LO16 imm:$imm))>;
1122 // Carry MipsPatterns
1123 def : MipsPat<(subc CPURegs:$lhs, CPURegs:$rhs),
1124 (SUBu CPURegs:$lhs, CPURegs:$rhs)>;
1125 def : MipsPat<(addc CPURegs:$lhs, CPURegs:$rhs),
1126 (ADDu CPURegs:$lhs, CPURegs:$rhs)>;
1127 def : MipsPat<(addc CPURegs:$src, immSExt16:$imm),
1128 (ADDiu CPURegs:$src, imm:$imm)>;
1131 def : MipsPat<(MipsJmpLink (i32 tglobaladdr:$dst)),
1132 (JAL tglobaladdr:$dst)>;
1133 def : MipsPat<(MipsJmpLink (i32 texternalsym:$dst)),
1134 (JAL texternalsym:$dst)>;
1135 //def : MipsPat<(MipsJmpLink CPURegs:$dst),
1136 // (JALR CPURegs:$dst)>;
1139 def : MipsPat<(MipsTailCall (iPTR tglobaladdr:$dst)),
1140 (TAILCALL tglobaladdr:$dst)>;
1141 def : MipsPat<(MipsTailCall (iPTR texternalsym:$dst)),
1142 (TAILCALL texternalsym:$dst)>;
1144 def : MipsPat<(MipsHi tglobaladdr:$in), (LUi tglobaladdr:$in)>;
1145 def : MipsPat<(MipsHi tblockaddress:$in), (LUi tblockaddress:$in)>;
1146 def : MipsPat<(MipsHi tjumptable:$in), (LUi tjumptable:$in)>;
1147 def : MipsPat<(MipsHi tconstpool:$in), (LUi tconstpool:$in)>;
1148 def : MipsPat<(MipsHi tglobaltlsaddr:$in), (LUi tglobaltlsaddr:$in)>;
1149 def : MipsPat<(MipsHi texternalsym:$in), (LUi texternalsym:$in)>;
1151 def : MipsPat<(MipsLo tglobaladdr:$in), (ADDiu ZERO, tglobaladdr:$in)>;
1152 def : MipsPat<(MipsLo tblockaddress:$in), (ADDiu ZERO, tblockaddress:$in)>;
1153 def : MipsPat<(MipsLo tjumptable:$in), (ADDiu ZERO, tjumptable:$in)>;
1154 def : MipsPat<(MipsLo tconstpool:$in), (ADDiu ZERO, tconstpool:$in)>;
1155 def : MipsPat<(MipsLo tglobaltlsaddr:$in), (ADDiu ZERO, tglobaltlsaddr:$in)>;
1156 def : MipsPat<(MipsLo texternalsym:$in), (ADDiu ZERO, texternalsym:$in)>;
1158 def : MipsPat<(add CPURegs:$hi, (MipsLo tglobaladdr:$lo)),
1159 (ADDiu CPURegs:$hi, tglobaladdr:$lo)>;
1160 def : MipsPat<(add CPURegs:$hi, (MipsLo tblockaddress:$lo)),
1161 (ADDiu CPURegs:$hi, tblockaddress:$lo)>;
1162 def : MipsPat<(add CPURegs:$hi, (MipsLo tjumptable:$lo)),
1163 (ADDiu CPURegs:$hi, tjumptable:$lo)>;
1164 def : MipsPat<(add CPURegs:$hi, (MipsLo tconstpool:$lo)),
1165 (ADDiu CPURegs:$hi, tconstpool:$lo)>;
1166 def : MipsPat<(add CPURegs:$hi, (MipsLo tglobaltlsaddr:$lo)),
1167 (ADDiu CPURegs:$hi, tglobaltlsaddr:$lo)>;
1170 def : MipsPat<(add CPURegs:$gp, (MipsGPRel tglobaladdr:$in)),
1171 (ADDiu CPURegs:$gp, tglobaladdr:$in)>;
1172 def : MipsPat<(add CPURegs:$gp, (MipsGPRel tconstpool:$in)),
1173 (ADDiu CPURegs:$gp, tconstpool:$in)>;
1176 class WrapperPat<SDNode node, Instruction ADDiuOp, RegisterClass RC>:
1177 MipsPat<(MipsWrapper RC:$gp, node:$in),
1178 (ADDiuOp RC:$gp, node:$in)>;
1180 def : WrapperPat<tglobaladdr, ADDiu, CPURegs>;
1181 def : WrapperPat<tconstpool, ADDiu, CPURegs>;
1182 def : WrapperPat<texternalsym, ADDiu, CPURegs>;
1183 def : WrapperPat<tblockaddress, ADDiu, CPURegs>;
1184 def : WrapperPat<tjumptable, ADDiu, CPURegs>;
1185 def : WrapperPat<tglobaltlsaddr, ADDiu, CPURegs>;
1187 // Mips does not have "not", so we expand our way
1188 def : MipsPat<(not CPURegs:$in),
1189 (NOR CPURegs:$in, ZERO)>;
1192 let Predicates = [NotN64, HasStdEnc] in {
1193 def : MipsPat<(i32 (extloadi1 addr:$src)), (LBu addr:$src)>;
1194 def : MipsPat<(i32 (extloadi8 addr:$src)), (LBu addr:$src)>;
1195 def : MipsPat<(i32 (extloadi16 addr:$src)), (LHu addr:$src)>;
1197 let Predicates = [IsN64, HasStdEnc] in {
1198 def : MipsPat<(i32 (extloadi1 addr:$src)), (LBu_P8 addr:$src)>;
1199 def : MipsPat<(i32 (extloadi8 addr:$src)), (LBu_P8 addr:$src)>;
1200 def : MipsPat<(i32 (extloadi16 addr:$src)), (LHu_P8 addr:$src)>;
1204 let Predicates = [NotN64, HasStdEnc] in {
1205 def : MipsPat<(store (i32 0), addr:$dst), (SW ZERO, addr:$dst)>;
1207 let Predicates = [IsN64, HasStdEnc] in {
1208 def : MipsPat<(store (i32 0), addr:$dst), (SW_P8 ZERO, addr:$dst)>;
1212 multiclass BrcondPats<RegisterClass RC, Instruction BEQOp, Instruction BNEOp,
1213 Instruction SLTOp, Instruction SLTuOp, Instruction SLTiOp,
1214 Instruction SLTiuOp, Register ZEROReg> {
1215 def : MipsPat<(brcond (i32 (setne RC:$lhs, 0)), bb:$dst),
1216 (BNEOp RC:$lhs, ZEROReg, bb:$dst)>;
1217 def : MipsPat<(brcond (i32 (seteq RC:$lhs, 0)), bb:$dst),
1218 (BEQOp RC:$lhs, ZEROReg, bb:$dst)>;
1220 def : MipsPat<(brcond (i32 (setge RC:$lhs, RC:$rhs)), bb:$dst),
1221 (BEQ (SLTOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>;
1222 def : MipsPat<(brcond (i32 (setuge RC:$lhs, RC:$rhs)), bb:$dst),
1223 (BEQ (SLTuOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>;
1224 def : MipsPat<(brcond (i32 (setge RC:$lhs, immSExt16:$rhs)), bb:$dst),
1225 (BEQ (SLTiOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
1226 def : MipsPat<(brcond (i32 (setuge RC:$lhs, immSExt16:$rhs)), bb:$dst),
1227 (BEQ (SLTiuOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
1229 def : MipsPat<(brcond (i32 (setle RC:$lhs, RC:$rhs)), bb:$dst),
1230 (BEQ (SLTOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>;
1231 def : MipsPat<(brcond (i32 (setule RC:$lhs, RC:$rhs)), bb:$dst),
1232 (BEQ (SLTuOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>;
1234 def : MipsPat<(brcond RC:$cond, bb:$dst),
1235 (BNEOp RC:$cond, ZEROReg, bb:$dst)>;
1238 defm : BrcondPats<CPURegs, BEQ, BNE, SLT, SLTu, SLTi, SLTiu, ZERO>;
1241 multiclass SeteqPats<RegisterClass RC, Instruction SLTiuOp, Instruction XOROp,
1242 Instruction SLTuOp, Register ZEROReg> {
1243 def : MipsPat<(seteq RC:$lhs, RC:$rhs),
1244 (SLTiuOp (XOROp RC:$lhs, RC:$rhs), 1)>;
1245 def : MipsPat<(setne RC:$lhs, RC:$rhs),
1246 (SLTuOp ZEROReg, (XOROp RC:$lhs, RC:$rhs))>;
1249 multiclass SetlePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1250 def : MipsPat<(setle RC:$lhs, RC:$rhs),
1251 (XORi (SLTOp RC:$rhs, RC:$lhs), 1)>;
1252 def : MipsPat<(setule RC:$lhs, RC:$rhs),
1253 (XORi (SLTuOp RC:$rhs, RC:$lhs), 1)>;
1256 multiclass SetgtPats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1257 def : MipsPat<(setgt RC:$lhs, RC:$rhs),
1258 (SLTOp RC:$rhs, RC:$lhs)>;
1259 def : MipsPat<(setugt RC:$lhs, RC:$rhs),
1260 (SLTuOp RC:$rhs, RC:$lhs)>;
1263 multiclass SetgePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1264 def : MipsPat<(setge RC:$lhs, RC:$rhs),
1265 (XORi (SLTOp RC:$lhs, RC:$rhs), 1)>;
1266 def : MipsPat<(setuge RC:$lhs, RC:$rhs),
1267 (XORi (SLTuOp RC:$lhs, RC:$rhs), 1)>;
1270 multiclass SetgeImmPats<RegisterClass RC, Instruction SLTiOp,
1271 Instruction SLTiuOp> {
1272 def : MipsPat<(setge RC:$lhs, immSExt16:$rhs),
1273 (XORi (SLTiOp RC:$lhs, immSExt16:$rhs), 1)>;
1274 def : MipsPat<(setuge RC:$lhs, immSExt16:$rhs),
1275 (XORi (SLTiuOp RC:$lhs, immSExt16:$rhs), 1)>;
1278 defm : SeteqPats<CPURegs, SLTiu, XOR, SLTu, ZERO>;
1279 defm : SetlePats<CPURegs, SLT, SLTu>;
1280 defm : SetgtPats<CPURegs, SLT, SLTu>;
1281 defm : SetgePats<CPURegs, SLT, SLTu>;
1282 defm : SetgeImmPats<CPURegs, SLTi, SLTiu>;
1285 def : MipsPat<(bswap CPURegs:$rt), (ROTR (WSBH CPURegs:$rt), 16)>;
1287 //===----------------------------------------------------------------------===//
1288 // Floating Point Support
1289 //===----------------------------------------------------------------------===//
1291 include "MipsInstrFPU.td"
1292 include "Mips64InstrInfo.td"
1293 include "MipsCondMov.td"
1298 include "Mips16InstrFormats.td"
1299 include "Mips16InstrInfo.td"
1302 include "MipsDSPInstrFormats.td"
1303 include "MipsDSPInstrInfo.td"