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 15-bit sign extended on target immediate.
303 def immSExt15 : PatLeaf<(imm), [{ return isInt<15>(N->getSExtValue()); }]>;
305 // Node immediate fits as 16-bit zero extended on target immediate.
306 // The LO16 param means that only the lower 16 bits of the node
307 // immediate are caught.
309 def immZExt16 : PatLeaf<(imm), [{
310 if (N->getValueType(0) == MVT::i32)
311 return (uint32_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
313 return (uint64_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
316 // Immediate can be loaded with LUi (32-bit int with lower 16-bit cleared).
317 def immLow16Zero : PatLeaf<(imm), [{
318 int64_t Val = N->getSExtValue();
319 return isInt<32>(Val) && !(Val & 0xffff);
322 // shamt field must fit in 5 bits.
323 def immZExt5 : ImmLeaf<i32, [{return Imm == (Imm & 0x1f);}]>;
325 // Mips Address Mode! SDNode frameindex could possibily be a match
326 // since load and store instructions from stack used it.
328 ComplexPattern<iPTR, 2, "SelectAddr", [frameindex], [SDNPWantParent]>;
330 //===----------------------------------------------------------------------===//
331 // Instructions specific format
332 //===----------------------------------------------------------------------===//
334 // Arithmetic and logical instructions with 3 register operands.
335 class ArithLogicR<string opstr, RegisterClass RC, bit isComm = 0,
336 InstrItinClass Itin = NoItinerary,
337 SDPatternOperator OpNode = null_frag>:
338 InstSE<(outs RC:$rd), (ins RC:$rs, RC:$rt),
339 !strconcat(opstr, "\t$rd, $rs, $rt"),
340 [(set RC:$rd, (OpNode RC:$rs, RC:$rt))], Itin, FrmR> {
341 let isCommutable = isComm;
342 let isReMaterializable = 1;
345 // Arithmetic and logical instructions with 2 register operands.
346 class ArithLogicI<string opstr, Operand Od, RegisterClass RC,
347 SDPatternOperator imm_type = null_frag,
348 SDPatternOperator OpNode = null_frag> :
349 InstSE<(outs RC:$rt), (ins RC:$rs, Od:$imm16),
350 !strconcat(opstr, "\t$rt, $rs, $imm16"),
351 [(set RC:$rt, (OpNode RC:$rs, imm_type:$imm16))], IIAlu, FrmI> {
352 let isReMaterializable = 1;
355 // Arithmetic Multiply ADD/SUB
356 class MArithR<string opstr, SDNode op, bit isComm = 0> :
357 InstSE<(outs), (ins CPURegs:$rs, CPURegs:$rt),
358 !strconcat(opstr, "\t$rs, $rt"),
359 [(op CPURegs:$rs, CPURegs:$rt, LO, HI)], IIImul, FrmR> {
362 let isCommutable = isComm;
366 class LogicNOR<string opstr, RegisterClass RC>:
367 InstSE<(outs RC:$rd), (ins RC:$rs, RC:$rt),
368 !strconcat(opstr, "\t$rd, $rs, $rt"),
369 [(set RC:$rd, (not (or RC:$rs, RC:$rt)))], IIAlu, FrmR> {
370 let isCommutable = 1;
374 class shift_rotate_imm<string opstr, PatFrag PF, Operand ImmOpnd,
375 RegisterClass RC, SDPatternOperator OpNode> :
376 InstSE<(outs RC:$rd), (ins RC:$rt, ImmOpnd:$shamt),
377 !strconcat(opstr, "\t$rd, $rt, $shamt"),
378 [(set RC:$rd, (OpNode RC:$rt, PF:$shamt))], IIAlu, FrmR>;
380 // 32-bit shift instructions.
381 class shift_rotate_imm32<string opstr, SDPatternOperator OpNode = null_frag> :
382 shift_rotate_imm<opstr, immZExt5, shamt, CPURegs, OpNode>;
384 class shift_rotate_reg<string opstr, SDNode OpNode, RegisterClass RC>:
385 InstSE<(outs RC:$rd), (ins CPURegs:$rs, RC:$rt),
386 !strconcat(opstr, "\t$rd, $rt, $rs"),
387 [(set RC:$rd, (OpNode RC:$rt, CPURegs:$rs))], IIAlu, FrmR>;
389 // Load Upper Imediate
390 class LoadUpper<string opstr, RegisterClass RC, Operand Imm>:
391 InstSE<(outs RC:$rt), (ins Imm:$imm16), !strconcat(opstr, "\t$rt, $imm16"),
392 [], IIAlu, FrmI>, IsAsCheapAsAMove {
393 let neverHasSideEffects = 1;
394 let isReMaterializable = 1;
397 class FMem<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
398 InstrItinClass itin>: FFI<op, outs, ins, asmstr, pattern> {
400 let Inst{25-21} = addr{20-16};
401 let Inst{15-0} = addr{15-0};
402 let DecoderMethod = "DecodeMem";
406 class Load<string opstr, PatFrag OpNode, RegisterClass RC, Operand MemOpnd> :
407 InstSE<(outs RC:$rt), (ins MemOpnd:$addr), !strconcat(opstr, "\t$rt, $addr"),
408 [(set RC:$rt, (OpNode addr:$addr))], NoItinerary, FrmI> {
409 let DecoderMethod = "DecodeMem";
410 let canFoldAsLoad = 1;
413 class Store<string opstr, PatFrag OpNode, RegisterClass RC, Operand MemOpnd> :
414 InstSE<(outs), (ins RC:$rt, MemOpnd:$addr), !strconcat(opstr, "\t$rt, $addr"),
415 [(OpNode RC:$rt, addr:$addr)], NoItinerary, FrmI> {
416 let DecoderMethod = "DecodeMem";
419 multiclass LoadM<string opstr, PatFrag OpNode, RegisterClass RC> {
420 def #NAME# : Load<opstr, OpNode, RC, mem>, Requires<[NotN64, HasStdEnc]>;
421 def _P8 : Load<opstr, OpNode, RC, mem64>, Requires<[IsN64, HasStdEnc]> {
422 let DecoderNamespace = "Mips64";
423 let isCodeGenOnly = 1;
427 multiclass StoreM<string opstr, PatFrag OpNode, RegisterClass RC> {
428 def #NAME# : Store<opstr, OpNode, RC, mem>, Requires<[NotN64, HasStdEnc]>;
429 def _P8 : Store<opstr, OpNode, RC, mem64>, Requires<[IsN64, HasStdEnc]> {
430 let DecoderNamespace = "Mips64";
431 let isCodeGenOnly = 1;
435 // Load/Store Left/Right
436 let canFoldAsLoad = 1 in
437 class LoadLeftRight<string opstr, SDNode OpNode, RegisterClass RC,
439 InstSE<(outs RC:$rt), (ins MemOpnd:$addr, RC:$src),
440 !strconcat(opstr, "\t$rt, $addr"),
441 [(set RC:$rt, (OpNode addr:$addr, RC:$src))], NoItinerary, FrmI> {
442 let DecoderMethod = "DecodeMem";
443 string Constraints = "$src = $rt";
446 class StoreLeftRight<string opstr, SDNode OpNode, RegisterClass RC,
448 InstSE<(outs), (ins RC:$rt, MemOpnd:$addr), !strconcat(opstr, "\t$rt, $addr"),
449 [(OpNode RC:$rt, addr:$addr)], NoItinerary, FrmI> {
450 let DecoderMethod = "DecodeMem";
453 multiclass LoadLeftRightM<string opstr, SDNode OpNode, RegisterClass RC> {
454 def #NAME# : LoadLeftRight<opstr, OpNode, RC, mem>,
455 Requires<[NotN64, HasStdEnc]>;
456 def _P8 : LoadLeftRight<opstr, OpNode, RC, mem64>,
457 Requires<[IsN64, HasStdEnc]> {
458 let DecoderNamespace = "Mips64";
459 let isCodeGenOnly = 1;
463 multiclass StoreLeftRightM<string opstr, SDNode OpNode, RegisterClass RC> {
464 def #NAME# : StoreLeftRight<opstr, OpNode, RC, mem>,
465 Requires<[NotN64, HasStdEnc]>;
466 def _P8 : StoreLeftRight<opstr, OpNode, RC, mem64>,
467 Requires<[IsN64, HasStdEnc]> {
468 let DecoderNamespace = "Mips64";
469 let isCodeGenOnly = 1;
473 // Conditional Branch
474 class CBranch<string opstr, PatFrag cond_op, RegisterClass RC> :
475 InstSE<(outs), (ins RC:$rs, RC:$rt, brtarget:$offset),
476 !strconcat(opstr, "\t$rs, $rt, $offset"),
477 [(brcond (i32 (cond_op RC:$rs, RC:$rt)), bb:$offset)], IIBranch,
480 let isTerminator = 1;
481 let hasDelaySlot = 1;
485 class CBranchZero<string opstr, PatFrag cond_op, RegisterClass RC> :
486 InstSE<(outs), (ins RC:$rs, brtarget:$offset),
487 !strconcat(opstr, "\t$rs, $offset"),
488 [(brcond (i32 (cond_op RC:$rs, 0)), bb:$offset)], IIBranch, FrmI> {
490 let isTerminator = 1;
491 let hasDelaySlot = 1;
496 class SetCC_R<string opstr, PatFrag cond_op, RegisterClass RC> :
497 InstSE<(outs CPURegs:$rd), (ins RC:$rs, RC:$rt),
498 !strconcat(opstr, "\t$rd, $rs, $rt"),
499 [(set CPURegs:$rd, (cond_op RC:$rs, RC:$rt))], IIAlu, FrmR>;
501 class SetCC_I<string opstr, PatFrag cond_op, Operand Od, PatLeaf imm_type,
503 InstSE<(outs CPURegs:$rt), (ins RC:$rs, Od:$imm16),
504 !strconcat(opstr, "\t$rt, $rs, $imm16"),
505 [(set CPURegs:$rt, (cond_op RC:$rs, imm_type:$imm16))], IIAlu, FrmI>;
508 class JumpFJ<DAGOperand opnd, string opstr, SDPatternOperator operator,
509 SDPatternOperator targetoperator> :
510 InstSE<(outs), (ins opnd:$target), !strconcat(opstr, "\t$target"),
511 [(operator targetoperator:$target)], IIBranch, FrmJ> {
514 let hasDelaySlot = 1;
515 let DecoderMethod = "DecodeJumpTarget";
519 // Unconditional branch
520 class UncondBranch<string opstr> :
521 InstSE<(outs), (ins brtarget:$offset), !strconcat(opstr, "\t$offset"),
522 [(br bb:$offset)], IIBranch, FrmI> {
524 let isTerminator = 1;
526 let hasDelaySlot = 1;
527 let Predicates = [RelocPIC, HasStdEnc];
531 // Base class for indirect branch and return instruction classes.
532 let isTerminator=1, isBarrier=1, hasDelaySlot = 1 in
533 class JumpFR<RegisterClass RC, SDPatternOperator operator = null_frag>:
534 InstSE<(outs), (ins RC:$rs), "jr\t$rs", [(operator RC:$rs)], IIBranch, FrmR>;
537 class IndirectBranch<RegisterClass RC>: JumpFR<RC, brind> {
539 let isIndirectBranch = 1;
542 // Return instruction
543 class RetBase<RegisterClass RC>: JumpFR<RC> {
545 let isCodeGenOnly = 1;
547 let hasExtraSrcRegAllocReq = 1;
550 // Jump and Link (Call)
551 let isCall=1, hasDelaySlot=1, Defs = [RA] in {
552 class JumpLink<string opstr> :
553 InstSE<(outs), (ins calltarget:$target), !strconcat(opstr, "\t$target"),
554 [(MipsJmpLink imm:$target)], IIBranch, FrmJ> {
555 let DecoderMethod = "DecodeJumpTarget";
558 class JumpLinkReg<string opstr, RegisterClass RC>:
559 InstSE<(outs), (ins RC:$rs), !strconcat(opstr, "\t$rs"),
560 [(MipsJmpLink RC:$rs)], IIBranch, FrmR>;
562 class BGEZAL_FT<string opstr, RegisterClass RC> :
563 InstSE<(outs), (ins RC:$rs, brtarget:$offset),
564 !strconcat(opstr, "\t$rs, $offset"), [], IIBranch, FrmI>;
569 InstSE<(outs), (ins brtarget:$offset), "bal\t$offset", [], IIBranch, FrmI> {
571 let isTerminator = 1;
573 let hasDelaySlot = 1;
578 let hasSideEffects = 1 in
580 InstSE<(outs), (ins i32imm:$stype), "sync $stype", [(MipsSync imm:$stype)],
581 NoItinerary, FrmOther>;
584 class Mult<string opstr, InstrItinClass itin, RegisterClass RC,
585 list<Register> DefRegs> :
586 InstSE<(outs), (ins RC:$rs, RC:$rt), !strconcat(opstr, "\t$rs, $rt"), [],
588 let isCommutable = 1;
590 let neverHasSideEffects = 1;
593 class Div<SDNode op, string opstr, InstrItinClass itin, RegisterClass RC,
594 list<Register> DefRegs> :
595 InstSE<(outs), (ins RC:$rs, RC:$rt),
596 !strconcat(opstr, "\t$$zero, $rs, $rt"), [(op RC:$rs, RC:$rt)], itin,
602 class MoveFromLOHI<string opstr, RegisterClass RC, list<Register> UseRegs>:
603 InstSE<(outs RC:$rd), (ins), !strconcat(opstr, "\t$rd"), [], IIHiLo, FrmR> {
605 let neverHasSideEffects = 1;
608 class MoveToLOHI<string opstr, RegisterClass RC, list<Register> DefRegs>:
609 InstSE<(outs), (ins RC:$rs), !strconcat(opstr, "\t$rs"), [], IIHiLo, FrmR> {
611 let neverHasSideEffects = 1;
614 class EffectiveAddress<bits<6> opc, string instr_asm, RegisterClass RC, Operand Mem> :
615 FMem<opc, (outs RC:$rt), (ins Mem:$addr),
616 instr_asm, [(set RC:$rt, addr:$addr)], IIAlu> {
617 let isCodeGenOnly = 1;
620 // Count Leading Ones/Zeros in Word
621 class CountLeading0<string opstr, RegisterClass RC>:
622 InstSE<(outs RC:$rd), (ins RC:$rs), !strconcat(opstr, "\t$rd, $rs"),
623 [(set RC:$rd, (ctlz RC:$rs))], IIAlu, FrmR>,
624 Requires<[HasBitCount, HasStdEnc]>;
626 class CountLeading1<string opstr, RegisterClass RC>:
627 InstSE<(outs RC:$rd), (ins RC:$rs), !strconcat(opstr, "\t$rd, $rs"),
628 [(set RC:$rd, (ctlz (not RC:$rs)))], IIAlu, FrmR>,
629 Requires<[HasBitCount, HasStdEnc]>;
632 // Sign Extend in Register.
633 class SignExtInReg<string opstr, ValueType vt, RegisterClass RC> :
634 InstSE<(outs RC:$rd), (ins RC:$rt), !strconcat(opstr, "\t$rd, $rt"),
635 [(set RC:$rd, (sext_inreg RC:$rt, vt))], NoItinerary, FrmR> {
636 let Predicates = [HasSEInReg, HasStdEnc];
640 class SubwordSwap<bits<6> func, bits<5> sa, string instr_asm, RegisterClass RC>:
641 FR<0x1f, func, (outs RC:$rd), (ins RC:$rt),
642 !strconcat(instr_asm, "\t$rd, $rt"), [], NoItinerary> {
645 let Predicates = [HasSwap, HasStdEnc];
646 let neverHasSideEffects = 1;
650 class ReadHardware<RegisterClass CPURegClass, RegisterClass HWRegClass>
651 : FR<0x1f, 0x3b, (outs CPURegClass:$rt), (ins HWRegClass:$rd),
652 "rdhwr\t$rt, $rd", [], IIAlu> {
658 class ExtBase<bits<6> _funct, string instr_asm, RegisterClass RC>:
659 FR<0x1f, _funct, (outs RC:$rt), (ins RC:$rs, uimm16:$pos, size_ext:$sz),
660 !strconcat(instr_asm, " $rt, $rs, $pos, $sz"),
661 [(set RC:$rt, (MipsExt RC:$rs, imm:$pos, imm:$sz))], NoItinerary> {
666 let Predicates = [HasMips32r2, HasStdEnc];
669 class InsBase<bits<6> _funct, string instr_asm, RegisterClass RC>:
670 FR<0x1f, _funct, (outs RC:$rt),
671 (ins RC:$rs, uimm16:$pos, size_ins:$sz, RC:$src),
672 !strconcat(instr_asm, " $rt, $rs, $pos, $sz"),
673 [(set RC:$rt, (MipsIns RC:$rs, imm:$pos, imm:$sz, RC:$src))],
679 let Predicates = [HasMips32r2, HasStdEnc];
680 let Constraints = "$src = $rt";
683 // Atomic instructions with 2 source operands (ATOMIC_SWAP & ATOMIC_LOAD_*).
684 class Atomic2Ops<PatFrag Op, RegisterClass DRC, RegisterClass PRC> :
685 PseudoSE<(outs DRC:$dst), (ins PRC:$ptr, DRC:$incr),
686 [(set DRC:$dst, (Op PRC:$ptr, DRC:$incr))]>;
688 multiclass Atomic2Ops32<PatFrag Op> {
689 def #NAME# : Atomic2Ops<Op, CPURegs, CPURegs>, Requires<[NotN64, HasStdEnc]>;
690 def _P8 : Atomic2Ops<Op, CPURegs, CPU64Regs>,
691 Requires<[IsN64, HasStdEnc]> {
692 let DecoderNamespace = "Mips64";
696 // Atomic Compare & Swap.
697 class AtomicCmpSwap<PatFrag Op, RegisterClass DRC, RegisterClass PRC> :
698 PseudoSE<(outs DRC:$dst), (ins PRC:$ptr, DRC:$cmp, DRC:$swap),
699 [(set DRC:$dst, (Op PRC:$ptr, DRC:$cmp, DRC:$swap))]>;
701 multiclass AtomicCmpSwap32<PatFrag Op> {
702 def #NAME# : AtomicCmpSwap<Op, CPURegs, CPURegs>,
703 Requires<[NotN64, HasStdEnc]>;
704 def _P8 : AtomicCmpSwap<Op, CPURegs, CPU64Regs>,
705 Requires<[IsN64, HasStdEnc]> {
706 let DecoderNamespace = "Mips64";
710 class LLBase<string opstr, RegisterClass RC, Operand Mem> :
711 InstSE<(outs RC:$rt), (ins Mem:$addr), !strconcat(opstr, "\t$rt, $addr"),
712 [], NoItinerary, FrmI> {
713 let DecoderMethod = "DecodeMem";
717 class SCBase<string opstr, RegisterClass RC, Operand Mem> :
718 InstSE<(outs RC:$dst), (ins RC:$rt, Mem:$addr),
719 !strconcat(opstr, "\t$rt, $addr"), [], NoItinerary, FrmI> {
720 let DecoderMethod = "DecodeMem";
722 let Constraints = "$rt = $dst";
725 //===----------------------------------------------------------------------===//
726 // Pseudo instructions
727 //===----------------------------------------------------------------------===//
730 let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1, hasCtrlDep=1 in
731 def RetRA : PseudoSE<(outs), (ins), [(MipsRet)]>;
733 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
734 def ADJCALLSTACKDOWN : MipsPseudo<(outs), (ins i32imm:$amt),
735 [(callseq_start timm:$amt)]>;
736 def ADJCALLSTACKUP : MipsPseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
737 [(callseq_end timm:$amt1, timm:$amt2)]>;
740 let usesCustomInserter = 1 in {
741 defm ATOMIC_LOAD_ADD_I8 : Atomic2Ops32<atomic_load_add_8>;
742 defm ATOMIC_LOAD_ADD_I16 : Atomic2Ops32<atomic_load_add_16>;
743 defm ATOMIC_LOAD_ADD_I32 : Atomic2Ops32<atomic_load_add_32>;
744 defm ATOMIC_LOAD_SUB_I8 : Atomic2Ops32<atomic_load_sub_8>;
745 defm ATOMIC_LOAD_SUB_I16 : Atomic2Ops32<atomic_load_sub_16>;
746 defm ATOMIC_LOAD_SUB_I32 : Atomic2Ops32<atomic_load_sub_32>;
747 defm ATOMIC_LOAD_AND_I8 : Atomic2Ops32<atomic_load_and_8>;
748 defm ATOMIC_LOAD_AND_I16 : Atomic2Ops32<atomic_load_and_16>;
749 defm ATOMIC_LOAD_AND_I32 : Atomic2Ops32<atomic_load_and_32>;
750 defm ATOMIC_LOAD_OR_I8 : Atomic2Ops32<atomic_load_or_8>;
751 defm ATOMIC_LOAD_OR_I16 : Atomic2Ops32<atomic_load_or_16>;
752 defm ATOMIC_LOAD_OR_I32 : Atomic2Ops32<atomic_load_or_32>;
753 defm ATOMIC_LOAD_XOR_I8 : Atomic2Ops32<atomic_load_xor_8>;
754 defm ATOMIC_LOAD_XOR_I16 : Atomic2Ops32<atomic_load_xor_16>;
755 defm ATOMIC_LOAD_XOR_I32 : Atomic2Ops32<atomic_load_xor_32>;
756 defm ATOMIC_LOAD_NAND_I8 : Atomic2Ops32<atomic_load_nand_8>;
757 defm ATOMIC_LOAD_NAND_I16 : Atomic2Ops32<atomic_load_nand_16>;
758 defm ATOMIC_LOAD_NAND_I32 : Atomic2Ops32<atomic_load_nand_32>;
760 defm ATOMIC_SWAP_I8 : Atomic2Ops32<atomic_swap_8>;
761 defm ATOMIC_SWAP_I16 : Atomic2Ops32<atomic_swap_16>;
762 defm ATOMIC_SWAP_I32 : Atomic2Ops32<atomic_swap_32>;
764 defm ATOMIC_CMP_SWAP_I8 : AtomicCmpSwap32<atomic_cmp_swap_8>;
765 defm ATOMIC_CMP_SWAP_I16 : AtomicCmpSwap32<atomic_cmp_swap_16>;
766 defm ATOMIC_CMP_SWAP_I32 : AtomicCmpSwap32<atomic_cmp_swap_32>;
769 //===----------------------------------------------------------------------===//
770 // Instruction definition
771 //===----------------------------------------------------------------------===//
772 //===----------------------------------------------------------------------===//
773 // MipsI Instructions
774 //===----------------------------------------------------------------------===//
776 /// Arithmetic Instructions (ALU Immediate)
777 def ADDiu : ArithLogicI<"addiu", simm16, CPURegs, immSExt16, add>,
778 ADDI_FM<0x9>, IsAsCheapAsAMove;
779 def ADDi : ArithLogicI<"addi", simm16, CPURegs>, ADDI_FM<0x8>;
780 def SLTi : SetCC_I<"slti", setlt, simm16, immSExt16, CPURegs>, SLTI_FM<0xa>;
781 def SLTiu : SetCC_I<"sltiu", setult, simm16, immSExt16, CPURegs>, SLTI_FM<0xb>;
782 def ANDi : ArithLogicI<"andi", uimm16, CPURegs, immZExt16, and>, ADDI_FM<0xc>;
783 def ORi : ArithLogicI<"ori", uimm16, CPURegs, immZExt16, or>, ADDI_FM<0xd>;
784 def XORi : ArithLogicI<"xori", uimm16, CPURegs, immZExt16, xor>, ADDI_FM<0xe>;
785 def LUi : LoadUpper<"lui", CPURegs, uimm16>, LUI_FM;
787 /// Arithmetic Instructions (3-Operand, R-Type)
788 def ADDu : ArithLogicR<"addu", CPURegs, 1, IIAlu, add>, ADD_FM<0, 0x21>;
789 def SUBu : ArithLogicR<"subu", CPURegs, 0, IIAlu, sub>, ADD_FM<0, 0x23>;
790 def MUL : ArithLogicR<"mul", CPURegs, 1, IIImul, mul>, ADD_FM<0x1c, 2>;
791 def ADD : ArithLogicR<"add", CPURegs>, ADD_FM<0, 0x20>;
792 def SUB : ArithLogicR<"sub", CPURegs>, ADD_FM<0, 0x22>;
793 def SLT : SetCC_R<"slt", setlt, CPURegs>, ADD_FM<0, 0x2a>;
794 def SLTu : SetCC_R<"sltu", setult, CPURegs>, ADD_FM<0, 0x2b>;
795 def AND : ArithLogicR<"and", CPURegs, 1, IIAlu, and>, ADD_FM<0, 0x24>;
796 def OR : ArithLogicR<"or", CPURegs, 1, IIAlu, or>, ADD_FM<0, 0x25>;
797 def XOR : ArithLogicR<"xor", CPURegs, 1, IIAlu, xor>, ADD_FM<0, 0x26>;
798 def NOR : LogicNOR<"nor", CPURegs>, ADD_FM<0, 0x27>;
800 /// Shift Instructions
801 def SLL : shift_rotate_imm32<"sll", shl>, SRA_FM<0, 0>;
802 def SRL : shift_rotate_imm32<"srl", srl>, SRA_FM<2, 0>;
803 def SRA : shift_rotate_imm32<"sra", sra>, SRA_FM<3, 0>;
804 def SLLV : shift_rotate_reg<"sllv", shl, CPURegs>, SRLV_FM<4, 0>;
805 def SRLV : shift_rotate_reg<"srlv", srl, CPURegs>, SRLV_FM<6, 0>;
806 def SRAV : shift_rotate_reg<"srav", sra, CPURegs>, SRLV_FM<7, 0>;
808 // Rotate Instructions
809 let Predicates = [HasMips32r2, HasStdEnc] in {
810 def ROTR : shift_rotate_imm32<"rotr", rotr>, SRA_FM<2, 1>;
811 def ROTRV : shift_rotate_reg<"rotrv", rotr, CPURegs>, SRLV_FM<6, 1>;
814 /// Load and Store Instructions
816 defm LB : LoadM<"lb", sextloadi8, CPURegs>, LW_FM<0x20>;
817 defm LBu : LoadM<"lbu", zextloadi8, CPURegs>, LW_FM<0x24>;
818 defm LH : LoadM<"lh", sextloadi16, CPURegs>, LW_FM<0x21>;
819 defm LHu : LoadM<"lhu", zextloadi16, CPURegs>, LW_FM<0x25>;
820 defm LW : LoadM<"lw", load, CPURegs>, LW_FM<0x23>;
821 defm SB : StoreM<"sb", truncstorei8, CPURegs>, LW_FM<0x28>;
822 defm SH : StoreM<"sh", truncstorei16, CPURegs>, LW_FM<0x29>;
823 defm SW : StoreM<"sw", store, CPURegs>, LW_FM<0x2b>;
825 /// load/store left/right
826 defm LWL : LoadLeftRightM<"lwl", MipsLWL, CPURegs>, LW_FM<0x22>;
827 defm LWR : LoadLeftRightM<"lwr", MipsLWR, CPURegs>, LW_FM<0x26>;
828 defm SWL : StoreLeftRightM<"swl", MipsSWL, CPURegs>, LW_FM<0x2a>;
829 defm SWR : StoreLeftRightM<"swr", MipsSWR, CPURegs>, LW_FM<0x2e>;
831 def SYNC : SYNC_FT, SYNC_FM;
833 /// Load-linked, Store-conditional
834 let Predicates = [NotN64, HasStdEnc] in {
835 def LL : LLBase<"ll", CPURegs, mem>, LW_FM<0x30>;
836 def SC : SCBase<"sc", CPURegs, mem>, LW_FM<0x38>;
839 let Predicates = [IsN64, HasStdEnc], DecoderNamespace = "Mips64" in {
840 def LL_P8 : LLBase<"ll", CPURegs, mem64>, LW_FM<0x30>;
841 def SC_P8 : SCBase<"sc", CPURegs, mem64>, LW_FM<0x38>;
844 /// Jump and Branch Instructions
845 def J : JumpFJ<jmptarget, "j", br, bb>, FJ<2>,
846 Requires<[RelocStatic, HasStdEnc]>, IsBranch;
847 def JR : IndirectBranch<CPURegs>, MTLO_FM<8>;
848 def B : UncondBranch<"b">, B_FM;
849 def BEQ : CBranch<"beq", seteq, CPURegs>, BEQ_FM<4>;
850 def BNE : CBranch<"bne", setne, CPURegs>, BEQ_FM<5>;
851 def BGEZ : CBranchZero<"bgez", setge, CPURegs>, BGEZ_FM<1, 1>;
852 def BGTZ : CBranchZero<"bgtz", setgt, CPURegs>, BGEZ_FM<7, 0>;
853 def BLEZ : CBranchZero<"blez", setle, CPURegs>, BGEZ_FM<6, 0>;
854 def BLTZ : CBranchZero<"bltz", setlt, CPURegs>, BGEZ_FM<1, 0>;
856 def BAL_BR: BAL_FT, BAL_FM;
858 def JAL : JumpLink<"jal">, FJ<3>;
859 def JALR : JumpLinkReg<"jalr", CPURegs>, JALR_FM;
860 def BGEZAL : BGEZAL_FT<"bgezal", CPURegs>, BGEZAL_FM<0x11>;
861 def BLTZAL : BGEZAL_FT<"bltzal", CPURegs>, BGEZAL_FM<0x10>;
862 def TAILCALL : JumpFJ<calltarget, "j", MipsTailCall, imm>, FJ<2>, IsTailCall;
863 def TAILCALL_R : JumpFR<CPURegs, MipsTailCall>, MTLO_FM<8>, IsTailCall;
865 def RET : RetBase<CPURegs>, MTLO_FM<8>;
867 /// Multiply and Divide Instructions.
868 def MULT : Mult<"mult", IIImul, CPURegs, [HI, LO]>, MULT_FM<0, 0x18>;
869 def MULTu : Mult<"multu", IIImul, CPURegs, [HI, LO]>, MULT_FM<0, 0x19>;
870 def SDIV : Div<MipsDivRem, "div", IIIdiv, CPURegs, [HI, LO]>, MULT_FM<0, 0x1a>;
871 def UDIV : Div<MipsDivRemU, "divu", IIIdiv, CPURegs, [HI, LO]>,
874 def MTHI : MoveToLOHI<"mthi", CPURegs, [HI]>, MTLO_FM<0x11>;
875 def MTLO : MoveToLOHI<"mtlo", CPURegs, [LO]>, MTLO_FM<0x13>;
876 def MFHI : MoveFromLOHI<"mfhi", CPURegs, [HI]>, MFLO_FM<0x10>;
877 def MFLO : MoveFromLOHI<"mflo", CPURegs, [LO]>, MFLO_FM<0x12>;
879 /// Sign Ext In Register Instructions.
880 def SEB : SignExtInReg<"seb", i8, CPURegs>, SEB_FM<0x10>;
881 def SEH : SignExtInReg<"seh", i16, CPURegs>, SEB_FM<0x18>;
884 def CLZ : CountLeading0<"clz", CPURegs>, CLO_FM<0x20>;
885 def CLO : CountLeading1<"clo", CPURegs>, CLO_FM<0x21>;
887 /// Word Swap Bytes Within Halfwords
888 def WSBH : SubwordSwap<0x20, 0x2, "wsbh", CPURegs>;
891 /// FIXME: NOP should be an alias of "sll $0, $0, 0".
892 def NOP : InstSE<(outs), (ins), "nop", [], IIAlu, FrmJ>, NOP_FM;
894 // FrameIndexes are legalized when they are operands from load/store
895 // instructions. The same not happens for stack address copies, so an
896 // add op with mem ComplexPattern is used and the stack address copy
897 // can be matched. It's similar to Sparc LEA_ADDRi
898 def LEA_ADDiu : EffectiveAddress<0x09,"addiu\t$rt, $addr", CPURegs, mem_ea>;
901 def MADD : MArithR<"madd", MipsMAdd, 1>, MULT_FM<0x1c, 0>;
902 def MADDU : MArithR<"maddu", MipsMAddu, 1>, MULT_FM<0x1c, 1>;
903 def MSUB : MArithR<"msub", MipsMSub>, MULT_FM<0x1c, 4>;
904 def MSUBU : MArithR<"msubu", MipsMSubu>, MULT_FM<0x1c, 5>;
906 def RDHWR : ReadHardware<CPURegs, HWRegs>;
908 def EXT : ExtBase<0, "ext", CPURegs>;
909 def INS : InsBase<4, "ins", CPURegs>;
911 /// Move Control Registers From/To CPU Registers
912 def MFC0_3OP : MFC3OP<0x10, 0, (outs CPURegs:$rt),
913 (ins CPURegs:$rd, uimm16:$sel),"mfc0\t$rt, $rd, $sel">;
914 def : InstAlias<"mfc0 $rt, $rd", (MFC0_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
916 def MTC0_3OP : MFC3OP<0x10, 4, (outs CPURegs:$rd, uimm16:$sel),
917 (ins CPURegs:$rt),"mtc0\t$rt, $rd, $sel">;
918 def : InstAlias<"mtc0 $rt, $rd", (MTC0_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
920 def MFC2_3OP : MFC3OP<0x12, 0, (outs CPURegs:$rt),
921 (ins CPURegs:$rd, uimm16:$sel),"mfc2\t$rt, $rd, $sel">;
922 def : InstAlias<"mfc2 $rt, $rd", (MFC2_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
924 def MTC2_3OP : MFC3OP<0x12, 4, (outs CPURegs:$rd, uimm16:$sel),
925 (ins CPURegs:$rt),"mtc2\t$rt, $rd, $sel">;
926 def : InstAlias<"mtc2 $rt, $rd", (MTC2_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
928 //===----------------------------------------------------------------------===//
929 // Instruction aliases
930 //===----------------------------------------------------------------------===//
931 def : InstAlias<"move $dst,$src", (ADD CPURegs:$dst,CPURegs:$src,ZERO)>;
932 def : InstAlias<"bal $offset", (BGEZAL RA,brtarget:$offset)>;
933 def : InstAlias<"addu $rs,$rt,$imm",
934 (ADDiu CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
935 def : InstAlias<"add $rs,$rt,$imm",
936 (ADDi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
937 def : InstAlias<"and $rs,$rt,$imm",
938 (ANDi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
939 def : InstAlias<"j $rs", (JR CPURegs:$rs)>;
940 def : InstAlias<"not $rt,$rs", (NOR CPURegs:$rt,CPURegs:$rs,ZERO)>;
941 def : InstAlias<"neg $rt,$rs", (SUB CPURegs:$rt,ZERO,CPURegs:$rs)>;
942 def : InstAlias<"negu $rt,$rs", (SUBu CPURegs:$rt,ZERO,CPURegs:$rs)>;
943 def : InstAlias<"slt $rs,$rt,$imm",
944 (SLTi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
945 def : InstAlias<"xor $rs,$rt,$imm",
946 (XORi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
948 //===----------------------------------------------------------------------===//
949 // Assembler Pseudo Instructions
950 //===----------------------------------------------------------------------===//
952 class LoadImm32< string instr_asm, Operand Od, RegisterClass RC> :
953 MipsAsmPseudoInst<(outs RC:$rt), (ins Od:$imm32),
954 !strconcat(instr_asm, "\t$rt, $imm32")> ;
955 def LoadImm32Reg : LoadImm32<"li", shamt,CPURegs>;
957 class LoadAddress<string instr_asm, Operand MemOpnd, RegisterClass RC> :
958 MipsAsmPseudoInst<(outs RC:$rt), (ins MemOpnd:$addr),
959 !strconcat(instr_asm, "\t$rt, $addr")> ;
960 def LoadAddr32Reg : LoadAddress<"la", mem, CPURegs>;
962 class LoadAddressImm<string instr_asm, Operand Od, RegisterClass RC> :
963 MipsAsmPseudoInst<(outs RC:$rt), (ins Od:$imm32),
964 !strconcat(instr_asm, "\t$rt, $imm32")> ;
965 def LoadAddr32Imm : LoadAddressImm<"la", shamt,CPURegs>;
969 //===----------------------------------------------------------------------===//
970 // Arbitrary patterns that map to one or more instructions
971 //===----------------------------------------------------------------------===//
974 def : MipsPat<(i32 immSExt16:$in),
975 (ADDiu ZERO, imm:$in)>;
976 def : MipsPat<(i32 immZExt16:$in),
977 (ORi ZERO, imm:$in)>;
978 def : MipsPat<(i32 immLow16Zero:$in),
979 (LUi (HI16 imm:$in))>;
981 // Arbitrary immediates
982 def : MipsPat<(i32 imm:$imm),
983 (ORi (LUi (HI16 imm:$imm)), (LO16 imm:$imm))>;
985 // Carry MipsPatterns
986 def : MipsPat<(subc CPURegs:$lhs, CPURegs:$rhs),
987 (SUBu CPURegs:$lhs, CPURegs:$rhs)>;
988 def : MipsPat<(addc CPURegs:$lhs, CPURegs:$rhs),
989 (ADDu CPURegs:$lhs, CPURegs:$rhs)>;
990 def : MipsPat<(addc CPURegs:$src, immSExt16:$imm),
991 (ADDiu CPURegs:$src, imm:$imm)>;
994 def : MipsPat<(MipsJmpLink (i32 tglobaladdr:$dst)),
995 (JAL tglobaladdr:$dst)>;
996 def : MipsPat<(MipsJmpLink (i32 texternalsym:$dst)),
997 (JAL texternalsym:$dst)>;
998 //def : MipsPat<(MipsJmpLink CPURegs:$dst),
999 // (JALR CPURegs:$dst)>;
1002 def : MipsPat<(MipsTailCall (iPTR tglobaladdr:$dst)),
1003 (TAILCALL tglobaladdr:$dst)>;
1004 def : MipsPat<(MipsTailCall (iPTR texternalsym:$dst)),
1005 (TAILCALL texternalsym:$dst)>;
1007 def : MipsPat<(MipsHi tglobaladdr:$in), (LUi tglobaladdr:$in)>;
1008 def : MipsPat<(MipsHi tblockaddress:$in), (LUi tblockaddress:$in)>;
1009 def : MipsPat<(MipsHi tjumptable:$in), (LUi tjumptable:$in)>;
1010 def : MipsPat<(MipsHi tconstpool:$in), (LUi tconstpool:$in)>;
1011 def : MipsPat<(MipsHi tglobaltlsaddr:$in), (LUi tglobaltlsaddr:$in)>;
1012 def : MipsPat<(MipsHi texternalsym:$in), (LUi texternalsym:$in)>;
1014 def : MipsPat<(MipsLo tglobaladdr:$in), (ADDiu ZERO, tglobaladdr:$in)>;
1015 def : MipsPat<(MipsLo tblockaddress:$in), (ADDiu ZERO, tblockaddress:$in)>;
1016 def : MipsPat<(MipsLo tjumptable:$in), (ADDiu ZERO, tjumptable:$in)>;
1017 def : MipsPat<(MipsLo tconstpool:$in), (ADDiu ZERO, tconstpool:$in)>;
1018 def : MipsPat<(MipsLo tglobaltlsaddr:$in), (ADDiu ZERO, tglobaltlsaddr:$in)>;
1019 def : MipsPat<(MipsLo texternalsym:$in), (ADDiu ZERO, texternalsym:$in)>;
1021 def : MipsPat<(add CPURegs:$hi, (MipsLo tglobaladdr:$lo)),
1022 (ADDiu CPURegs:$hi, tglobaladdr:$lo)>;
1023 def : MipsPat<(add CPURegs:$hi, (MipsLo tblockaddress:$lo)),
1024 (ADDiu CPURegs:$hi, tblockaddress:$lo)>;
1025 def : MipsPat<(add CPURegs:$hi, (MipsLo tjumptable:$lo)),
1026 (ADDiu CPURegs:$hi, tjumptable:$lo)>;
1027 def : MipsPat<(add CPURegs:$hi, (MipsLo tconstpool:$lo)),
1028 (ADDiu CPURegs:$hi, tconstpool:$lo)>;
1029 def : MipsPat<(add CPURegs:$hi, (MipsLo tglobaltlsaddr:$lo)),
1030 (ADDiu CPURegs:$hi, tglobaltlsaddr:$lo)>;
1033 def : MipsPat<(add CPURegs:$gp, (MipsGPRel tglobaladdr:$in)),
1034 (ADDiu CPURegs:$gp, tglobaladdr:$in)>;
1035 def : MipsPat<(add CPURegs:$gp, (MipsGPRel tconstpool:$in)),
1036 (ADDiu CPURegs:$gp, tconstpool:$in)>;
1039 class WrapperPat<SDNode node, Instruction ADDiuOp, RegisterClass RC>:
1040 MipsPat<(MipsWrapper RC:$gp, node:$in),
1041 (ADDiuOp RC:$gp, node:$in)>;
1043 def : WrapperPat<tglobaladdr, ADDiu, CPURegs>;
1044 def : WrapperPat<tconstpool, ADDiu, CPURegs>;
1045 def : WrapperPat<texternalsym, ADDiu, CPURegs>;
1046 def : WrapperPat<tblockaddress, ADDiu, CPURegs>;
1047 def : WrapperPat<tjumptable, ADDiu, CPURegs>;
1048 def : WrapperPat<tglobaltlsaddr, ADDiu, CPURegs>;
1050 // Mips does not have "not", so we expand our way
1051 def : MipsPat<(not CPURegs:$in),
1052 (NOR CPURegs:$in, ZERO)>;
1055 let Predicates = [NotN64, HasStdEnc] in {
1056 def : MipsPat<(i32 (extloadi1 addr:$src)), (LBu addr:$src)>;
1057 def : MipsPat<(i32 (extloadi8 addr:$src)), (LBu addr:$src)>;
1058 def : MipsPat<(i32 (extloadi16 addr:$src)), (LHu addr:$src)>;
1060 let Predicates = [IsN64, HasStdEnc] in {
1061 def : MipsPat<(i32 (extloadi1 addr:$src)), (LBu_P8 addr:$src)>;
1062 def : MipsPat<(i32 (extloadi8 addr:$src)), (LBu_P8 addr:$src)>;
1063 def : MipsPat<(i32 (extloadi16 addr:$src)), (LHu_P8 addr:$src)>;
1067 let Predicates = [NotN64, HasStdEnc] in {
1068 def : MipsPat<(store (i32 0), addr:$dst), (SW ZERO, addr:$dst)>;
1070 let Predicates = [IsN64, HasStdEnc] in {
1071 def : MipsPat<(store (i32 0), addr:$dst), (SW_P8 ZERO, addr:$dst)>;
1075 multiclass BrcondPats<RegisterClass RC, Instruction BEQOp, Instruction BNEOp,
1076 Instruction SLTOp, Instruction SLTuOp, Instruction SLTiOp,
1077 Instruction SLTiuOp, Register ZEROReg> {
1078 def : MipsPat<(brcond (i32 (setne RC:$lhs, 0)), bb:$dst),
1079 (BNEOp RC:$lhs, ZEROReg, bb:$dst)>;
1080 def : MipsPat<(brcond (i32 (seteq RC:$lhs, 0)), bb:$dst),
1081 (BEQOp RC:$lhs, ZEROReg, bb:$dst)>;
1083 def : MipsPat<(brcond (i32 (setge RC:$lhs, RC:$rhs)), bb:$dst),
1084 (BEQ (SLTOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>;
1085 def : MipsPat<(brcond (i32 (setuge RC:$lhs, RC:$rhs)), bb:$dst),
1086 (BEQ (SLTuOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>;
1087 def : MipsPat<(brcond (i32 (setge RC:$lhs, immSExt16:$rhs)), bb:$dst),
1088 (BEQ (SLTiOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
1089 def : MipsPat<(brcond (i32 (setuge RC:$lhs, immSExt16:$rhs)), bb:$dst),
1090 (BEQ (SLTiuOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
1092 def : MipsPat<(brcond (i32 (setle RC:$lhs, RC:$rhs)), bb:$dst),
1093 (BEQ (SLTOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>;
1094 def : MipsPat<(brcond (i32 (setule RC:$lhs, RC:$rhs)), bb:$dst),
1095 (BEQ (SLTuOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>;
1097 def : MipsPat<(brcond RC:$cond, bb:$dst),
1098 (BNEOp RC:$cond, ZEROReg, bb:$dst)>;
1101 defm : BrcondPats<CPURegs, BEQ, BNE, SLT, SLTu, SLTi, SLTiu, ZERO>;
1104 multiclass SeteqPats<RegisterClass RC, Instruction SLTiuOp, Instruction XOROp,
1105 Instruction SLTuOp, Register ZEROReg> {
1106 def : MipsPat<(seteq RC:$lhs, RC:$rhs),
1107 (SLTiuOp (XOROp RC:$lhs, RC:$rhs), 1)>;
1108 def : MipsPat<(setne RC:$lhs, RC:$rhs),
1109 (SLTuOp ZEROReg, (XOROp RC:$lhs, RC:$rhs))>;
1112 multiclass SetlePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1113 def : MipsPat<(setle RC:$lhs, RC:$rhs),
1114 (XORi (SLTOp RC:$rhs, RC:$lhs), 1)>;
1115 def : MipsPat<(setule RC:$lhs, RC:$rhs),
1116 (XORi (SLTuOp RC:$rhs, RC:$lhs), 1)>;
1119 multiclass SetgtPats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1120 def : MipsPat<(setgt RC:$lhs, RC:$rhs),
1121 (SLTOp RC:$rhs, RC:$lhs)>;
1122 def : MipsPat<(setugt RC:$lhs, RC:$rhs),
1123 (SLTuOp RC:$rhs, RC:$lhs)>;
1126 multiclass SetgePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1127 def : MipsPat<(setge RC:$lhs, RC:$rhs),
1128 (XORi (SLTOp RC:$lhs, RC:$rhs), 1)>;
1129 def : MipsPat<(setuge RC:$lhs, RC:$rhs),
1130 (XORi (SLTuOp RC:$lhs, RC:$rhs), 1)>;
1133 multiclass SetgeImmPats<RegisterClass RC, Instruction SLTiOp,
1134 Instruction SLTiuOp> {
1135 def : MipsPat<(setge RC:$lhs, immSExt16:$rhs),
1136 (XORi (SLTiOp RC:$lhs, immSExt16:$rhs), 1)>;
1137 def : MipsPat<(setuge RC:$lhs, immSExt16:$rhs),
1138 (XORi (SLTiuOp RC:$lhs, immSExt16:$rhs), 1)>;
1141 defm : SeteqPats<CPURegs, SLTiu, XOR, SLTu, ZERO>;
1142 defm : SetlePats<CPURegs, SLT, SLTu>;
1143 defm : SetgtPats<CPURegs, SLT, SLTu>;
1144 defm : SetgePats<CPURegs, SLT, SLTu>;
1145 defm : SetgeImmPats<CPURegs, SLTi, SLTiu>;
1148 def : MipsPat<(bswap CPURegs:$rt), (ROTR (WSBH CPURegs:$rt), 16)>;
1150 //===----------------------------------------------------------------------===//
1151 // Floating Point Support
1152 //===----------------------------------------------------------------------===//
1154 include "MipsInstrFPU.td"
1155 include "Mips64InstrInfo.td"
1156 include "MipsCondMov.td"
1161 include "Mips16InstrFormats.td"
1162 include "Mips16InstrInfo.td"
1165 include "MipsDSPInstrFormats.td"
1166 include "MipsDSPInstrInfo.td"