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_MipsDynAlloc : SDTypeProfile<1, 1, [SDTCisVT<0, iPTR>,
38 def SDT_Sync : SDTypeProfile<0, 1, [SDTCisVT<0, i32>]>;
40 def SDT_Ext : SDTypeProfile<1, 3, [SDTCisInt<0>, SDTCisSameAs<0, 1>,
41 SDTCisVT<2, i32>, SDTCisSameAs<2, 3>]>;
42 def SDT_Ins : SDTypeProfile<1, 4, [SDTCisInt<0>, SDTCisSameAs<0, 1>,
43 SDTCisVT<2, i32>, SDTCisSameAs<2, 3>,
46 def SDTMipsLoadLR : SDTypeProfile<1, 2,
47 [SDTCisInt<0>, SDTCisPtrTy<1>,
51 def MipsJmpLink : SDNode<"MipsISD::JmpLink",SDT_MipsJmpLink,
52 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
56 def MipsTailCall : SDNode<"MipsISD::TailCall", SDT_MipsJmpLink,
57 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
59 // Hi and Lo nodes are used to handle global addresses. Used on
60 // MipsISelLowering to lower stuff like GlobalAddress, ExternalSymbol
61 // static model. (nothing to do with Mips Registers Hi and Lo)
62 def MipsHi : SDNode<"MipsISD::Hi", SDTIntUnaryOp>;
63 def MipsLo : SDNode<"MipsISD::Lo", SDTIntUnaryOp>;
64 def MipsGPRel : SDNode<"MipsISD::GPRel", SDTIntUnaryOp>;
66 // TlsGd node is used to handle General Dynamic TLS
67 def MipsTlsGd : SDNode<"MipsISD::TlsGd", SDTIntUnaryOp>;
69 // TprelHi and TprelLo nodes are used to handle Local Exec TLS
70 def MipsTprelHi : SDNode<"MipsISD::TprelHi", SDTIntUnaryOp>;
71 def MipsTprelLo : SDNode<"MipsISD::TprelLo", SDTIntUnaryOp>;
74 def MipsThreadPointer: SDNode<"MipsISD::ThreadPointer", SDT_MipsThreadPointer>;
77 def MipsRet : SDNode<"MipsISD::Ret", SDTNone, [SDNPHasChain, SDNPOptInGlue]>;
79 // These are target-independent nodes, but have target-specific formats.
80 def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_MipsCallSeqStart,
81 [SDNPHasChain, SDNPSideEffect, SDNPOutGlue]>;
82 def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_MipsCallSeqEnd,
83 [SDNPHasChain, SDNPSideEffect,
84 SDNPOptInGlue, SDNPOutGlue]>;
87 def MipsMAdd : SDNode<"MipsISD::MAdd", SDT_MipsMAddMSub,
88 [SDNPOptInGlue, SDNPOutGlue]>;
89 def MipsMAddu : SDNode<"MipsISD::MAddu", SDT_MipsMAddMSub,
90 [SDNPOptInGlue, SDNPOutGlue]>;
91 def MipsMSub : SDNode<"MipsISD::MSub", SDT_MipsMAddMSub,
92 [SDNPOptInGlue, SDNPOutGlue]>;
93 def MipsMSubu : SDNode<"MipsISD::MSubu", SDT_MipsMAddMSub,
94 [SDNPOptInGlue, SDNPOutGlue]>;
97 def MipsDivRem : SDNode<"MipsISD::DivRem", SDT_MipsDivRem,
99 def MipsDivRemU : SDNode<"MipsISD::DivRemU", SDT_MipsDivRem,
102 // Target constant nodes that are not part of any isel patterns and remain
103 // unchanged can cause instructions with illegal operands to be emitted.
104 // Wrapper node patterns give the instruction selector a chance to replace
105 // target constant nodes that would otherwise remain unchanged with ADDiu
106 // nodes. Without these wrapper node patterns, the following conditional move
107 // instrucion is emitted when function cmov2 in test/CodeGen/Mips/cmov.ll is
109 // movn %got(d)($gp), %got(c)($gp), $4
110 // This instruction is illegal since movn can take only register operands.
112 def MipsWrapper : SDNode<"MipsISD::Wrapper", SDTIntBinOp>;
114 // Pointer to dynamically allocated stack area.
115 def MipsDynAlloc : SDNode<"MipsISD::DynAlloc", SDT_MipsDynAlloc,
116 [SDNPHasChain, SDNPInGlue]>;
118 def MipsSync : SDNode<"MipsISD::Sync", SDT_Sync, [SDNPHasChain,SDNPSideEffect]>;
120 def MipsExt : SDNode<"MipsISD::Ext", SDT_Ext>;
121 def MipsIns : SDNode<"MipsISD::Ins", SDT_Ins>;
123 def MipsLWL : SDNode<"MipsISD::LWL", SDTMipsLoadLR,
124 [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
125 def MipsLWR : SDNode<"MipsISD::LWR", SDTMipsLoadLR,
126 [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
127 def MipsSWL : SDNode<"MipsISD::SWL", SDTStore,
128 [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
129 def MipsSWR : SDNode<"MipsISD::SWR", SDTStore,
130 [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
131 def MipsLDL : SDNode<"MipsISD::LDL", SDTMipsLoadLR,
132 [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
133 def MipsLDR : SDNode<"MipsISD::LDR", SDTMipsLoadLR,
134 [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
135 def MipsSDL : SDNode<"MipsISD::SDL", SDTStore,
136 [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
137 def MipsSDR : SDNode<"MipsISD::SDR", SDTStore,
138 [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
140 //===----------------------------------------------------------------------===//
141 // Mips Instruction Predicate Definitions.
142 //===----------------------------------------------------------------------===//
143 def HasSEInReg : Predicate<"Subtarget.hasSEInReg()">,
144 AssemblerPredicate<"FeatureSEInReg">;
145 def HasBitCount : Predicate<"Subtarget.hasBitCount()">,
146 AssemblerPredicate<"FeatureBitCount">;
147 def HasSwap : Predicate<"Subtarget.hasSwap()">,
148 AssemblerPredicate<"FeatureSwap">;
149 def HasCondMov : Predicate<"Subtarget.hasCondMov()">,
150 AssemblerPredicate<"FeatureCondMov">;
151 def HasFPIdx : Predicate<"Subtarget.hasFPIdx()">,
152 AssemblerPredicate<"FeatureFPIdx">;
153 def HasMips32 : Predicate<"Subtarget.hasMips32()">,
154 AssemblerPredicate<"FeatureMips32">;
155 def HasMips32r2 : Predicate<"Subtarget.hasMips32r2()">,
156 AssemblerPredicate<"FeatureMips32r2">;
157 def HasMips64 : Predicate<"Subtarget.hasMips64()">,
158 AssemblerPredicate<"FeatureMips64">;
159 def NotMips64 : Predicate<"!Subtarget.hasMips64()">,
160 AssemblerPredicate<"!FeatureMips64">;
161 def HasMips64r2 : Predicate<"Subtarget.hasMips64r2()">,
162 AssemblerPredicate<"FeatureMips64r2">;
163 def IsN64 : Predicate<"Subtarget.isABI_N64()">,
164 AssemblerPredicate<"FeatureN64">;
165 def NotN64 : Predicate<"!Subtarget.isABI_N64()">,
166 AssemblerPredicate<"!FeatureN64">;
167 def InMips16Mode : Predicate<"Subtarget.inMips16Mode()">,
168 AssemblerPredicate<"FeatureMips16">;
169 def RelocStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">,
170 AssemblerPredicate<"FeatureMips32">;
171 def RelocPIC : Predicate<"TM.getRelocationModel() == Reloc::PIC_">,
172 AssemblerPredicate<"FeatureMips32">;
173 def NoNaNsFPMath : Predicate<"TM.Options.NoNaNsFPMath">,
174 AssemblerPredicate<"FeatureMips32">;
175 def HasStdEnc : Predicate<"Subtarget.hasStandardEncoding()">,
176 AssemblerPredicate<"!FeatureMips16">;
178 class MipsPat<dag pattern, dag result> : Pat<pattern, result> {
179 let Predicates = [HasStdEnc];
196 bit isTerminator = 1;
199 bit hasExtraSrcRegAllocReq = 1;
200 bit isCodeGenOnly = 1;
203 class IsAsCheapAsAMove {
204 bit isAsCheapAsAMove = 1;
207 class NeverHasSideEffects {
208 bit neverHasSideEffects = 1;
211 //===----------------------------------------------------------------------===//
212 // Instruction format superclass
213 //===----------------------------------------------------------------------===//
215 include "MipsInstrFormats.td"
217 //===----------------------------------------------------------------------===//
218 // Mips Operand, Complex Patterns and Transformations Definitions.
219 //===----------------------------------------------------------------------===//
221 // Instruction operand types
222 def jmptarget : Operand<OtherVT> {
223 let EncoderMethod = "getJumpTargetOpValue";
225 def brtarget : Operand<OtherVT> {
226 let EncoderMethod = "getBranchTargetOpValue";
227 let OperandType = "OPERAND_PCREL";
228 let DecoderMethod = "DecodeBranchTarget";
230 def calltarget : Operand<iPTR> {
231 let EncoderMethod = "getJumpTargetOpValue";
233 def calltarget64: Operand<i64>;
234 def simm16 : Operand<i32> {
235 let DecoderMethod= "DecodeSimm16";
237 def simm16_64 : Operand<i64>;
238 def shamt : Operand<i32>;
241 def uimm16 : Operand<i32> {
242 let PrintMethod = "printUnsignedImm";
245 def MipsMemAsmOperand : AsmOperandClass {
247 let ParserMethod = "parseMemOperand";
251 def mem : Operand<i32> {
252 let PrintMethod = "printMemOperand";
253 let MIOperandInfo = (ops CPURegs, simm16);
254 let EncoderMethod = "getMemEncoding";
255 let ParserMatchClass = MipsMemAsmOperand;
258 def mem64 : Operand<i64> {
259 let PrintMethod = "printMemOperand";
260 let MIOperandInfo = (ops CPU64Regs, simm16_64);
261 let EncoderMethod = "getMemEncoding";
262 let ParserMatchClass = MipsMemAsmOperand;
265 def mem_ea : Operand<i32> {
266 let PrintMethod = "printMemOperandEA";
267 let MIOperandInfo = (ops CPURegs, simm16);
268 let EncoderMethod = "getMemEncoding";
271 def mem_ea_64 : Operand<i64> {
272 let PrintMethod = "printMemOperandEA";
273 let MIOperandInfo = (ops CPU64Regs, simm16_64);
274 let EncoderMethod = "getMemEncoding";
277 // size operand of ext instruction
278 def size_ext : Operand<i32> {
279 let EncoderMethod = "getSizeExtEncoding";
280 let DecoderMethod = "DecodeExtSize";
283 // size operand of ins instruction
284 def size_ins : Operand<i32> {
285 let EncoderMethod = "getSizeInsEncoding";
286 let DecoderMethod = "DecodeInsSize";
289 // Transformation Function - get the lower 16 bits.
290 def LO16 : SDNodeXForm<imm, [{
291 return getImm(N, N->getZExtValue() & 0xFFFF);
294 // Transformation Function - get the higher 16 bits.
295 def HI16 : SDNodeXForm<imm, [{
296 return getImm(N, (N->getZExtValue() >> 16) & 0xFFFF);
299 // Node immediate fits as 16-bit sign extended on target immediate.
301 def immSExt16 : PatLeaf<(imm), [{ return isInt<16>(N->getSExtValue()); }]>;
303 // Node immediate fits as 16-bit zero extended on target immediate.
304 // The LO16 param means that only the lower 16 bits of the node
305 // immediate are caught.
307 def immZExt16 : PatLeaf<(imm), [{
308 if (N->getValueType(0) == MVT::i32)
309 return (uint32_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
311 return (uint64_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
314 // Immediate can be loaded with LUi (32-bit int with lower 16-bit cleared).
315 def immLow16Zero : PatLeaf<(imm), [{
316 int64_t Val = N->getSExtValue();
317 return isInt<32>(Val) && !(Val & 0xffff);
320 // shamt field must fit in 5 bits.
321 def immZExt5 : ImmLeaf<i32, [{return Imm == (Imm & 0x1f);}]>;
323 // Mips Address Mode! SDNode frameindex could possibily be a match
324 // since load and store instructions from stack used it.
326 ComplexPattern<iPTR, 2, "SelectAddr", [frameindex], [SDNPWantParent]>;
328 //===----------------------------------------------------------------------===//
329 // Instructions specific format
330 //===----------------------------------------------------------------------===//
332 /// Move Control Registers From/To CPU Registers
333 def MFC0_3OP : MFC3OP<0x10, 0, (outs CPURegs:$rt),
334 (ins CPURegs:$rd, uimm16:$sel),"mfc0\t$rt, $rd, $sel">;
335 def : InstAlias<"mfc0 $rt, $rd", (MFC0_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
337 def MTC0_3OP : MFC3OP<0x10, 4, (outs CPURegs:$rd, uimm16:$sel),
338 (ins CPURegs:$rt),"mtc0\t$rt, $rd, $sel">;
339 def : InstAlias<"mtc0 $rt, $rd", (MTC0_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
341 def MFC2_3OP : MFC3OP<0x12, 0, (outs CPURegs:$rt),
342 (ins CPURegs:$rd, uimm16:$sel),"mfc2\t$rt, $rd, $sel">;
343 def : InstAlias<"mfc2 $rt, $rd", (MFC2_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
345 def MTC2_3OP : MFC3OP<0x12, 4, (outs CPURegs:$rd, uimm16:$sel),
346 (ins CPURegs:$rt),"mtc2\t$rt, $rd, $sel">;
347 def : InstAlias<"mtc2 $rt, $rd", (MTC2_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
349 // Arithmetic and logical instructions with 3 register operands.
350 class ArithLogicR<bits<6> op, bits<6> func, string instr_asm, SDNode OpNode,
351 InstrItinClass itin, RegisterClass RC, bit isComm = 0>:
352 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
353 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
354 [(set RC:$rd, (OpNode RC:$rs, RC:$rt))], itin> {
356 let isCommutable = isComm;
357 let isReMaterializable = 1;
360 class ArithOverflowR<bits<6> op, bits<6> func, string instr_asm,
361 InstrItinClass itin, RegisterClass RC, bit isComm = 0>:
362 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
363 !strconcat(instr_asm, "\t$rd, $rs, $rt"), [], itin> {
365 let isCommutable = isComm;
368 // Arithmetic and logical instructions with 2 register operands.
369 class ArithLogicI<bits<6> op, string instr_asm, SDNode OpNode,
370 Operand Od, PatLeaf imm_type, RegisterClass RC> :
371 FI<op, (outs RC:$rt), (ins RC:$rs, Od:$imm16),
372 !strconcat(instr_asm, "\t$rt, $rs, $imm16"),
373 [(set RC:$rt, (OpNode RC:$rs, imm_type:$imm16))], IIAlu> {
374 let isReMaterializable = 1;
377 class ArithOverflowI<bits<6> op, string instr_asm, SDNode OpNode,
378 Operand Od, PatLeaf imm_type, RegisterClass RC> :
379 FI<op, (outs RC:$rt), (ins RC:$rs, Od:$imm16),
380 !strconcat(instr_asm, "\t$rt, $rs, $imm16"), [], IIAlu>;
382 // Arithmetic Multiply ADD/SUB
383 let rd = 0, shamt = 0, Defs = [HI, LO], Uses = [HI, LO] in
384 class MArithR<bits<6> func, string instr_asm, SDNode op, bit isComm = 0> :
385 FR<0x1c, func, (outs), (ins CPURegs:$rs, CPURegs:$rt),
386 !strconcat(instr_asm, "\t$rs, $rt"),
387 [(op CPURegs:$rs, CPURegs:$rt, LO, HI)], IIImul> {
390 let isCommutable = isComm;
394 class LogicNOR<bits<6> op, bits<6> func, string instr_asm, RegisterClass RC>:
395 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
396 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
397 [(set RC:$rd, (not (or RC:$rs, RC:$rt)))], IIAlu> {
399 let isCommutable = 1;
403 class shift_rotate_imm<bits<6> func, bits<5> isRotate, string instr_asm,
404 SDNode OpNode, PatFrag PF, Operand ImmOpnd,
406 FR<0x00, func, (outs RC:$rd), (ins RC:$rt, ImmOpnd:$shamt),
407 !strconcat(instr_asm, "\t$rd, $rt, $shamt"),
408 [(set RC:$rd, (OpNode RC:$rt, PF:$shamt))], IIAlu> {
412 // 32-bit shift instructions.
413 class shift_rotate_imm32<bits<6> func, bits<5> isRotate, string instr_asm,
415 shift_rotate_imm<func, isRotate, instr_asm, OpNode, immZExt5, shamt, CPURegs>;
417 class shift_rotate_reg<bits<6> func, bits<5> isRotate, string instr_asm,
418 SDNode OpNode, RegisterClass RC>:
419 FR<0x00, func, (outs RC:$rd), (ins CPURegs:$rs, RC:$rt),
420 !strconcat(instr_asm, "\t$rd, $rt, $rs"),
421 [(set RC:$rd, (OpNode RC:$rt, CPURegs:$rs))], IIAlu> {
422 let shamt = isRotate;
425 // Load Upper Imediate
426 class LoadUpper<bits<6> op, string instr_asm, RegisterClass RC, Operand Imm>:
427 FI<op, (outs RC:$rt), (ins Imm:$imm16),
428 !strconcat(instr_asm, "\t$rt, $imm16"), [], IIAlu>, IsAsCheapAsAMove {
430 let neverHasSideEffects = 1;
431 let isReMaterializable = 1;
434 class FMem<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
435 InstrItinClass itin>: FFI<op, outs, ins, asmstr, pattern> {
437 let Inst{25-21} = addr{20-16};
438 let Inst{15-0} = addr{15-0};
439 let DecoderMethod = "DecodeMem";
443 let canFoldAsLoad = 1 in
444 class LoadM<bits<6> op, string instr_asm, PatFrag OpNode, RegisterClass RC,
445 Operand MemOpnd, bit Pseudo>:
446 FMem<op, (outs RC:$rt), (ins MemOpnd:$addr),
447 !strconcat(instr_asm, "\t$rt, $addr"),
448 [(set RC:$rt, (OpNode addr:$addr))], IILoad> {
449 let isPseudo = Pseudo;
452 class StoreM<bits<6> op, string instr_asm, PatFrag OpNode, RegisterClass RC,
453 Operand MemOpnd, bit Pseudo>:
454 FMem<op, (outs), (ins RC:$rt, MemOpnd:$addr),
455 !strconcat(instr_asm, "\t$rt, $addr"),
456 [(OpNode RC:$rt, addr:$addr)], IIStore> {
457 let isPseudo = Pseudo;
461 multiclass LoadM32<bits<6> op, string instr_asm, PatFrag OpNode,
463 def #NAME# : LoadM<op, instr_asm, OpNode, CPURegs, mem, Pseudo>,
464 Requires<[NotN64, HasStdEnc]>;
465 def _P8 : LoadM<op, instr_asm, OpNode, CPURegs, mem64, Pseudo>,
466 Requires<[IsN64, HasStdEnc]> {
467 let DecoderNamespace = "Mips64";
468 let isCodeGenOnly = 1;
473 multiclass LoadM64<bits<6> op, string instr_asm, PatFrag OpNode,
475 def #NAME# : LoadM<op, instr_asm, OpNode, CPU64Regs, mem, Pseudo>,
476 Requires<[NotN64, HasStdEnc]>;
477 def _P8 : LoadM<op, instr_asm, OpNode, CPU64Regs, mem64, Pseudo>,
478 Requires<[IsN64, HasStdEnc]> {
479 let DecoderNamespace = "Mips64";
480 let isCodeGenOnly = 1;
485 multiclass StoreM32<bits<6> op, string instr_asm, PatFrag OpNode,
487 def #NAME# : StoreM<op, instr_asm, OpNode, CPURegs, mem, Pseudo>,
488 Requires<[NotN64, HasStdEnc]>;
489 def _P8 : StoreM<op, instr_asm, OpNode, CPURegs, mem64, Pseudo>,
490 Requires<[IsN64, HasStdEnc]> {
491 let DecoderNamespace = "Mips64";
492 let isCodeGenOnly = 1;
497 multiclass StoreM64<bits<6> op, string instr_asm, PatFrag OpNode,
499 def #NAME# : StoreM<op, instr_asm, OpNode, CPU64Regs, mem, Pseudo>,
500 Requires<[NotN64, HasStdEnc]>;
501 def _P8 : StoreM<op, instr_asm, OpNode, CPU64Regs, mem64, Pseudo>,
502 Requires<[IsN64, HasStdEnc]> {
503 let DecoderNamespace = "Mips64";
504 let isCodeGenOnly = 1;
508 // Load/Store Left/Right
509 let canFoldAsLoad = 1 in
510 class LoadLeftRight<bits<6> op, string instr_asm, SDNode OpNode,
511 RegisterClass RC, Operand MemOpnd> :
512 FMem<op, (outs RC:$rt), (ins MemOpnd:$addr, RC:$src),
513 !strconcat(instr_asm, "\t$rt, $addr"),
514 [(set RC:$rt, (OpNode addr:$addr, RC:$src))], IILoad> {
515 string Constraints = "$src = $rt";
518 class StoreLeftRight<bits<6> op, string instr_asm, SDNode OpNode,
519 RegisterClass RC, Operand MemOpnd>:
520 FMem<op, (outs), (ins RC:$rt, MemOpnd:$addr),
521 !strconcat(instr_asm, "\t$rt, $addr"), [(OpNode RC:$rt, addr:$addr)],
524 // 32-bit load left/right.
525 multiclass LoadLeftRightM32<bits<6> op, string instr_asm, SDNode OpNode> {
526 def #NAME# : LoadLeftRight<op, instr_asm, OpNode, CPURegs, mem>,
527 Requires<[NotN64, HasStdEnc]>;
528 def _P8 : LoadLeftRight<op, instr_asm, OpNode, CPURegs, mem64>,
529 Requires<[IsN64, HasStdEnc]> {
530 let DecoderNamespace = "Mips64";
531 let isCodeGenOnly = 1;
535 // 64-bit load left/right.
536 multiclass LoadLeftRightM64<bits<6> op, string instr_asm, SDNode OpNode> {
537 def #NAME# : LoadLeftRight<op, instr_asm, OpNode, CPU64Regs, mem>,
538 Requires<[NotN64, HasStdEnc]>;
539 def _P8 : LoadLeftRight<op, instr_asm, OpNode, CPU64Regs, mem64>,
540 Requires<[IsN64, HasStdEnc]> {
541 let DecoderNamespace = "Mips64";
542 let isCodeGenOnly = 1;
546 // 32-bit store left/right.
547 multiclass StoreLeftRightM32<bits<6> op, string instr_asm, SDNode OpNode> {
548 def #NAME# : StoreLeftRight<op, instr_asm, OpNode, CPURegs, mem>,
549 Requires<[NotN64, HasStdEnc]>;
550 def _P8 : StoreLeftRight<op, instr_asm, OpNode, CPURegs, mem64>,
551 Requires<[IsN64, HasStdEnc]> {
552 let DecoderNamespace = "Mips64";
553 let isCodeGenOnly = 1;
557 // 64-bit store left/right.
558 multiclass StoreLeftRightM64<bits<6> op, string instr_asm, SDNode OpNode> {
559 def #NAME# : StoreLeftRight<op, instr_asm, OpNode, CPU64Regs, mem>,
560 Requires<[NotN64, HasStdEnc]>;
561 def _P8 : StoreLeftRight<op, instr_asm, OpNode, CPU64Regs, mem64>,
562 Requires<[IsN64, HasStdEnc]> {
563 let DecoderNamespace = "Mips64";
564 let isCodeGenOnly = 1;
568 // Conditional Branch
569 class CBranch<bits<6> op, string instr_asm, PatFrag cond_op, RegisterClass RC>:
570 BranchBase<op, (outs), (ins RC:$rs, RC:$rt, brtarget:$imm16),
571 !strconcat(instr_asm, "\t$rs, $rt, $imm16"),
572 [(brcond (i32 (cond_op RC:$rs, RC:$rt)), bb:$imm16)], IIBranch> {
574 let isTerminator = 1;
575 let hasDelaySlot = 1;
579 class CBranchZero<bits<6> op, bits<5> _rt, string instr_asm, PatFrag cond_op,
581 BranchBase<op, (outs), (ins RC:$rs, brtarget:$imm16),
582 !strconcat(instr_asm, "\t$rs, $imm16"),
583 [(brcond (i32 (cond_op RC:$rs, 0)), bb:$imm16)], IIBranch> {
586 let isTerminator = 1;
587 let hasDelaySlot = 1;
592 class SetCC_R<bits<6> op, bits<6> func, string instr_asm, PatFrag cond_op,
594 FR<op, func, (outs CPURegs:$rd), (ins RC:$rs, RC:$rt),
595 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
596 [(set CPURegs:$rd, (cond_op RC:$rs, RC:$rt))],
601 class SetCC_I<bits<6> op, string instr_asm, PatFrag cond_op, Operand Od,
602 PatLeaf imm_type, RegisterClass RC>:
603 FI<op, (outs CPURegs:$rt), (ins RC:$rs, Od:$imm16),
604 !strconcat(instr_asm, "\t$rt, $rs, $imm16"),
605 [(set CPURegs:$rt, (cond_op RC:$rs, imm_type:$imm16))],
609 class JumpFJ<bits<6> op, DAGOperand opnd, string instr_asm,
610 SDPatternOperator operator, SDPatternOperator targetoperator>:
611 FJ<op, (outs), (ins opnd:$target), !strconcat(instr_asm, "\t$target"),
612 [(operator targetoperator:$target)], IIBranch> {
615 let hasDelaySlot = 1;
616 let DecoderMethod = "DecodeJumpTarget";
620 // Unconditional branch
621 class UncondBranch<bits<6> op, string instr_asm>:
622 BranchBase<op, (outs), (ins brtarget:$imm16),
623 !strconcat(instr_asm, "\t$imm16"), [(br bb:$imm16)], IIBranch> {
627 let isTerminator = 1;
629 let hasDelaySlot = 1;
630 let Predicates = [RelocPIC, HasStdEnc];
634 // Base class for indirect branch and return instruction classes.
635 let isTerminator=1, isBarrier=1, hasDelaySlot = 1 in
636 class JumpFR<RegisterClass RC, SDPatternOperator operator = null_frag>:
637 FR<0, 0x8, (outs), (ins RC:$rs), "jr\t$rs", [(operator RC:$rs)], IIBranch> {
644 class IndirectBranch<RegisterClass RC>: JumpFR<RC, brind> {
646 let isIndirectBranch = 1;
649 // Return instruction
650 class RetBase<RegisterClass RC>: JumpFR<RC> {
652 let isCodeGenOnly = 1;
654 let hasExtraSrcRegAllocReq = 1;
657 // Jump and Link (Call)
658 let isCall=1, hasDelaySlot=1, Defs = [RA] in {
659 class JumpLink<bits<6> op, string instr_asm>:
660 FJ<op, (outs), (ins calltarget:$target),
661 !strconcat(instr_asm, "\t$target"), [(MipsJmpLink imm:$target)],
663 let DecoderMethod = "DecodeJumpTarget";
666 class JumpLinkReg<bits<6> op, bits<6> func, string instr_asm,
668 FR<op, func, (outs), (ins RC:$rs),
669 !strconcat(instr_asm, "\t$rs"), [(MipsJmpLink RC:$rs)], IIBranch> {
675 class BranchLink<string instr_asm, bits<5> _rt, RegisterClass RC>:
676 FI<0x1, (outs), (ins RC:$rs, brtarget:$imm16),
677 !strconcat(instr_asm, "\t$rs, $imm16"), [], IIBranch> {
683 class Mult<bits<6> func, string instr_asm, InstrItinClass itin,
684 RegisterClass RC, list<Register> DefRegs>:
685 FR<0x00, func, (outs), (ins RC:$rs, RC:$rt),
686 !strconcat(instr_asm, "\t$rs, $rt"), [], itin> {
689 let isCommutable = 1;
691 let neverHasSideEffects = 1;
694 class Mult32<bits<6> func, string instr_asm, InstrItinClass itin>:
695 Mult<func, instr_asm, itin, CPURegs, [HI, LO]>;
697 class Div<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin,
698 RegisterClass RC, list<Register> DefRegs>:
699 FR<0x00, func, (outs), (ins RC:$rs, RC:$rt),
700 !strconcat(instr_asm, "\t$$zero, $rs, $rt"),
701 [(op RC:$rs, RC:$rt)], itin> {
707 class Div32<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin>:
708 Div<op, func, instr_asm, itin, CPURegs, [HI, LO]>;
711 class MoveFromLOHI<bits<6> func, string instr_asm, RegisterClass RC,
712 list<Register> UseRegs>:
713 FR<0x00, func, (outs RC:$rd), (ins),
714 !strconcat(instr_asm, "\t$rd"), [], IIHiLo> {
719 let neverHasSideEffects = 1;
722 class MoveToLOHI<bits<6> func, string instr_asm, RegisterClass RC,
723 list<Register> DefRegs>:
724 FR<0x00, func, (outs), (ins RC:$rs),
725 !strconcat(instr_asm, "\t$rs"), [], IIHiLo> {
730 let neverHasSideEffects = 1;
733 class EffectiveAddress<bits<6> opc, string instr_asm, RegisterClass RC, Operand Mem> :
734 FMem<opc, (outs RC:$rt), (ins Mem:$addr),
735 instr_asm, [(set RC:$rt, addr:$addr)], IIAlu> {
736 let isCodeGenOnly = 1;
739 // Count Leading Ones/Zeros in Word
740 class CountLeading0<bits<6> func, string instr_asm, RegisterClass RC>:
741 FR<0x1c, func, (outs RC:$rd), (ins RC:$rs),
742 !strconcat(instr_asm, "\t$rd, $rs"),
743 [(set RC:$rd, (ctlz RC:$rs))], IIAlu>,
744 Requires<[HasBitCount, HasStdEnc]> {
749 class CountLeading1<bits<6> func, string instr_asm, RegisterClass RC>:
750 FR<0x1c, func, (outs RC:$rd), (ins RC:$rs),
751 !strconcat(instr_asm, "\t$rd, $rs"),
752 [(set RC:$rd, (ctlz (not RC:$rs)))], IIAlu>,
753 Requires<[HasBitCount, HasStdEnc]> {
758 // Sign Extend in Register.
759 class SignExtInReg<bits<5> sa, string instr_asm, ValueType vt,
761 FR<0x1f, 0x20, (outs RC:$rd), (ins RC:$rt),
762 !strconcat(instr_asm, "\t$rd, $rt"),
763 [(set RC:$rd, (sext_inreg RC:$rt, vt))], NoItinerary> {
766 let Predicates = [HasSEInReg, HasStdEnc];
770 class SubwordSwap<bits<6> func, bits<5> sa, string instr_asm, RegisterClass RC>:
771 FR<0x1f, func, (outs RC:$rd), (ins RC:$rt),
772 !strconcat(instr_asm, "\t$rd, $rt"), [], NoItinerary> {
775 let Predicates = [HasSwap, HasStdEnc];
776 let neverHasSideEffects = 1;
780 class ReadHardware<RegisterClass CPURegClass, RegisterClass HWRegClass>
781 : FR<0x1f, 0x3b, (outs CPURegClass:$rt), (ins HWRegClass:$rd),
782 "rdhwr\t$rt, $rd", [], IIAlu> {
788 class ExtBase<bits<6> _funct, string instr_asm, RegisterClass RC>:
789 FR<0x1f, _funct, (outs RC:$rt), (ins RC:$rs, uimm16:$pos, size_ext:$sz),
790 !strconcat(instr_asm, " $rt, $rs, $pos, $sz"),
791 [(set RC:$rt, (MipsExt RC:$rs, imm:$pos, imm:$sz))], NoItinerary> {
796 let Predicates = [HasMips32r2, HasStdEnc];
799 class InsBase<bits<6> _funct, string instr_asm, RegisterClass RC>:
800 FR<0x1f, _funct, (outs RC:$rt),
801 (ins RC:$rs, uimm16:$pos, size_ins:$sz, RC:$src),
802 !strconcat(instr_asm, " $rt, $rs, $pos, $sz"),
803 [(set RC:$rt, (MipsIns RC:$rs, imm:$pos, imm:$sz, RC:$src))],
809 let Predicates = [HasMips32r2, HasStdEnc];
810 let Constraints = "$src = $rt";
813 // Atomic instructions with 2 source operands (ATOMIC_SWAP & ATOMIC_LOAD_*).
814 class Atomic2Ops<PatFrag Op, string Opstr, RegisterClass DRC,
816 PseudoSE<(outs DRC:$dst), (ins PRC:$ptr, DRC:$incr),
817 !strconcat("atomic_", Opstr, "\t$dst, $ptr, $incr"),
818 [(set DRC:$dst, (Op PRC:$ptr, DRC:$incr))]>;
820 multiclass Atomic2Ops32<PatFrag Op, string Opstr> {
821 def #NAME# : Atomic2Ops<Op, Opstr, CPURegs, CPURegs>,
822 Requires<[NotN64, HasStdEnc]>;
823 def _P8 : Atomic2Ops<Op, Opstr, CPURegs, CPU64Regs>,
824 Requires<[IsN64, HasStdEnc]> {
825 let DecoderNamespace = "Mips64";
829 // Atomic Compare & Swap.
830 class AtomicCmpSwap<PatFrag Op, string Width, RegisterClass DRC,
832 PseudoSE<(outs DRC:$dst), (ins PRC:$ptr, DRC:$cmp, DRC:$swap),
833 !strconcat("atomic_cmp_swap_", Width, "\t$dst, $ptr, $cmp, $swap"),
834 [(set DRC:$dst, (Op PRC:$ptr, DRC:$cmp, DRC:$swap))]>;
836 multiclass AtomicCmpSwap32<PatFrag Op, string Width> {
837 def #NAME# : AtomicCmpSwap<Op, Width, CPURegs, CPURegs>,
838 Requires<[NotN64, HasStdEnc]>;
839 def _P8 : AtomicCmpSwap<Op, Width, CPURegs, CPU64Regs>,
840 Requires<[IsN64, HasStdEnc]> {
841 let DecoderNamespace = "Mips64";
845 class LLBase<bits<6> Opc, string opstring, RegisterClass RC, Operand Mem> :
846 FMem<Opc, (outs RC:$rt), (ins Mem:$addr),
847 !strconcat(opstring, "\t$rt, $addr"), [], IILoad> {
851 class SCBase<bits<6> Opc, string opstring, RegisterClass RC, Operand Mem> :
852 FMem<Opc, (outs RC:$dst), (ins RC:$rt, Mem:$addr),
853 !strconcat(opstring, "\t$rt, $addr"), [], IIStore> {
855 let Constraints = "$rt = $dst";
858 //===----------------------------------------------------------------------===//
859 // Pseudo instructions
860 //===----------------------------------------------------------------------===//
863 let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1, hasCtrlDep=1 in
864 def RetRA : PseudoSE<(outs), (ins), "", [(MipsRet)]>;
866 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
867 def ADJCALLSTACKDOWN : MipsPseudo<(outs), (ins i32imm:$amt),
868 "!ADJCALLSTACKDOWN $amt",
869 [(callseq_start timm:$amt)]>;
870 def ADJCALLSTACKUP : MipsPseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
871 "!ADJCALLSTACKUP $amt1",
872 [(callseq_end timm:$amt1, timm:$amt2)]>;
875 // When handling PIC code the assembler needs .cpload and .cprestore
876 // directives. If the real instructions corresponding these directives
877 // are used, we have the same behavior, but get also a bunch of warnings
878 // from the assembler.
879 let neverHasSideEffects = 1 in
880 def CPRESTORE : PseudoSE<(outs), (ins i32imm:$loc, CPURegs:$gp),
881 ".cprestore\t$loc", []>;
883 let usesCustomInserter = 1 in {
884 defm ATOMIC_LOAD_ADD_I8 : Atomic2Ops32<atomic_load_add_8, "load_add_8">;
885 defm ATOMIC_LOAD_ADD_I16 : Atomic2Ops32<atomic_load_add_16, "load_add_16">;
886 defm ATOMIC_LOAD_ADD_I32 : Atomic2Ops32<atomic_load_add_32, "load_add_32">;
887 defm ATOMIC_LOAD_SUB_I8 : Atomic2Ops32<atomic_load_sub_8, "load_sub_8">;
888 defm ATOMIC_LOAD_SUB_I16 : Atomic2Ops32<atomic_load_sub_16, "load_sub_16">;
889 defm ATOMIC_LOAD_SUB_I32 : Atomic2Ops32<atomic_load_sub_32, "load_sub_32">;
890 defm ATOMIC_LOAD_AND_I8 : Atomic2Ops32<atomic_load_and_8, "load_and_8">;
891 defm ATOMIC_LOAD_AND_I16 : Atomic2Ops32<atomic_load_and_16, "load_and_16">;
892 defm ATOMIC_LOAD_AND_I32 : Atomic2Ops32<atomic_load_and_32, "load_and_32">;
893 defm ATOMIC_LOAD_OR_I8 : Atomic2Ops32<atomic_load_or_8, "load_or_8">;
894 defm ATOMIC_LOAD_OR_I16 : Atomic2Ops32<atomic_load_or_16, "load_or_16">;
895 defm ATOMIC_LOAD_OR_I32 : Atomic2Ops32<atomic_load_or_32, "load_or_32">;
896 defm ATOMIC_LOAD_XOR_I8 : Atomic2Ops32<atomic_load_xor_8, "load_xor_8">;
897 defm ATOMIC_LOAD_XOR_I16 : Atomic2Ops32<atomic_load_xor_16, "load_xor_16">;
898 defm ATOMIC_LOAD_XOR_I32 : Atomic2Ops32<atomic_load_xor_32, "load_xor_32">;
899 defm ATOMIC_LOAD_NAND_I8 : Atomic2Ops32<atomic_load_nand_8, "load_nand_8">;
900 defm ATOMIC_LOAD_NAND_I16 : Atomic2Ops32<atomic_load_nand_16, "load_nand_16">;
901 defm ATOMIC_LOAD_NAND_I32 : Atomic2Ops32<atomic_load_nand_32, "load_nand_32">;
903 defm ATOMIC_SWAP_I8 : Atomic2Ops32<atomic_swap_8, "swap_8">;
904 defm ATOMIC_SWAP_I16 : Atomic2Ops32<atomic_swap_16, "swap_16">;
905 defm ATOMIC_SWAP_I32 : Atomic2Ops32<atomic_swap_32, "swap_32">;
907 defm ATOMIC_CMP_SWAP_I8 : AtomicCmpSwap32<atomic_cmp_swap_8, "8">;
908 defm ATOMIC_CMP_SWAP_I16 : AtomicCmpSwap32<atomic_cmp_swap_16, "16">;
909 defm ATOMIC_CMP_SWAP_I32 : AtomicCmpSwap32<atomic_cmp_swap_32, "32">;
912 //===----------------------------------------------------------------------===//
913 // Instruction definition
914 //===----------------------------------------------------------------------===//
916 class LoadImm32< string instr_asm, Operand Od, RegisterClass RC> :
917 MipsAsmPseudoInst<(outs RC:$rt), (ins Od:$imm32),
918 !strconcat(instr_asm, "\t$rt, $imm32")> ;
919 def LoadImm32Reg : LoadImm32<"li", shamt,CPURegs>;
921 class LoadAddress<string instr_asm, Operand MemOpnd, RegisterClass RC> :
922 MipsAsmPseudoInst<(outs RC:$rt), (ins MemOpnd:$addr),
923 !strconcat(instr_asm, "\t$rt, $addr")> ;
924 def LoadAddr32Reg : LoadAddress<"la", mem, CPURegs>;
926 class LoadAddressImm<string instr_asm, Operand Od, RegisterClass RC> :
927 MipsAsmPseudoInst<(outs RC:$rt), (ins Od:$imm32),
928 !strconcat(instr_asm, "\t$rt, $imm32")> ;
929 def LoadAddr32Imm : LoadAddressImm<"la", shamt,CPURegs>;
931 //===----------------------------------------------------------------------===//
932 // MipsI Instructions
933 //===----------------------------------------------------------------------===//
935 /// Arithmetic Instructions (ALU Immediate)
936 def ADDiu : ArithLogicI<0x09, "addiu", add, simm16, immSExt16, CPURegs>,
938 def ADDi : ArithOverflowI<0x08, "addi", add, simm16, immSExt16, CPURegs>;
939 def SLTi : SetCC_I<0x0a, "slti", setlt, simm16, immSExt16, CPURegs>;
940 def SLTiu : SetCC_I<0x0b, "sltiu", setult, simm16, immSExt16, CPURegs>;
941 def ANDi : ArithLogicI<0x0c, "andi", and, uimm16, immZExt16, CPURegs>;
942 def ORi : ArithLogicI<0x0d, "ori", or, uimm16, immZExt16, CPURegs>;
943 def XORi : ArithLogicI<0x0e, "xori", xor, uimm16, immZExt16, CPURegs>;
944 def LUi : LoadUpper<0x0f, "lui", CPURegs, uimm16>;
946 /// Arithmetic Instructions (3-Operand, R-Type)
947 def ADDu : ArithLogicR<0x00, 0x21, "addu", add, IIAlu, CPURegs, 1>;
948 def SUBu : ArithLogicR<0x00, 0x23, "subu", sub, IIAlu, CPURegs>;
949 def ADD : ArithOverflowR<0x00, 0x20, "add", IIAlu, CPURegs, 1>;
950 def SUB : ArithOverflowR<0x00, 0x22, "sub", IIAlu, CPURegs>;
951 def SLT : SetCC_R<0x00, 0x2a, "slt", setlt, CPURegs>;
952 def SLTu : SetCC_R<0x00, 0x2b, "sltu", setult, CPURegs>;
953 def AND : ArithLogicR<0x00, 0x24, "and", and, IIAlu, CPURegs, 1>;
954 def OR : ArithLogicR<0x00, 0x25, "or", or, IIAlu, CPURegs, 1>;
955 def XOR : ArithLogicR<0x00, 0x26, "xor", xor, IIAlu, CPURegs, 1>;
956 def NOR : LogicNOR<0x00, 0x27, "nor", CPURegs>;
958 /// Shift Instructions
959 def SLL : shift_rotate_imm32<0x00, 0x00, "sll", shl>;
960 def SRL : shift_rotate_imm32<0x02, 0x00, "srl", srl>;
961 def SRA : shift_rotate_imm32<0x03, 0x00, "sra", sra>;
962 def SLLV : shift_rotate_reg<0x04, 0x00, "sllv", shl, CPURegs>;
963 def SRLV : shift_rotate_reg<0x06, 0x00, "srlv", srl, CPURegs>;
964 def SRAV : shift_rotate_reg<0x07, 0x00, "srav", sra, CPURegs>;
966 // Rotate Instructions
967 let Predicates = [HasMips32r2, HasStdEnc] in {
968 def ROTR : shift_rotate_imm32<0x02, 0x01, "rotr", rotr>;
969 def ROTRV : shift_rotate_reg<0x06, 0x01, "rotrv", rotr, CPURegs>;
972 /// Load and Store Instructions
974 defm LB : LoadM32<0x20, "lb", sextloadi8>;
975 defm LBu : LoadM32<0x24, "lbu", zextloadi8>;
976 defm LH : LoadM32<0x21, "lh", sextloadi16>;
977 defm LHu : LoadM32<0x25, "lhu", zextloadi16>;
978 defm LW : LoadM32<0x23, "lw", load>;
979 defm SB : StoreM32<0x28, "sb", truncstorei8>;
980 defm SH : StoreM32<0x29, "sh", truncstorei16>;
981 defm SW : StoreM32<0x2b, "sw", store>;
983 /// load/store left/right
984 defm LWL : LoadLeftRightM32<0x22, "lwl", MipsLWL>;
985 defm LWR : LoadLeftRightM32<0x26, "lwr", MipsLWR>;
986 defm SWL : StoreLeftRightM32<0x2a, "swl", MipsSWL>;
987 defm SWR : StoreLeftRightM32<0x2e, "swr", MipsSWR>;
989 let hasSideEffects = 1 in
990 def SYNC : InstSE<(outs), (ins i32imm:$stype), "sync $stype",
991 [(MipsSync imm:$stype)], NoItinerary, FrmOther>
996 let Inst{10-6} = stype;
1000 /// Load-linked, Store-conditional
1001 def LL : LLBase<0x30, "ll", CPURegs, mem>,
1002 Requires<[NotN64, HasStdEnc]>;
1003 def LL_P8 : LLBase<0x30, "ll", CPURegs, mem64>,
1004 Requires<[IsN64, HasStdEnc]> {
1005 let DecoderNamespace = "Mips64";
1008 def SC : SCBase<0x38, "sc", CPURegs, mem>,
1009 Requires<[NotN64, HasStdEnc]>;
1010 def SC_P8 : SCBase<0x38, "sc", CPURegs, mem64>,
1011 Requires<[IsN64, HasStdEnc]> {
1012 let DecoderNamespace = "Mips64";
1015 /// Jump and Branch Instructions
1016 def J : JumpFJ<0x02, jmptarget, "j", br, bb>,
1017 Requires<[RelocStatic, HasStdEnc]>, IsBranch;
1018 def JR : IndirectBranch<CPURegs>;
1019 def B : UncondBranch<0x04, "b">;
1020 def BEQ : CBranch<0x04, "beq", seteq, CPURegs>;
1021 def BNE : CBranch<0x05, "bne", setne, CPURegs>;
1022 def BGEZ : CBranchZero<0x01, 1, "bgez", setge, CPURegs>;
1023 def BGTZ : CBranchZero<0x07, 0, "bgtz", setgt, CPURegs>;
1024 def BLEZ : CBranchZero<0x06, 0, "blez", setle, CPURegs>;
1025 def BLTZ : CBranchZero<0x01, 0, "bltz", setlt, CPURegs>;
1027 let rt = 0, rs = 0, isBranch = 1, isTerminator = 1, isBarrier = 1,
1028 hasDelaySlot = 1, Defs = [RA] in
1029 def BAL_BR: FI<0x1, (outs), (ins brtarget:$imm16), "bal\t$imm16", [], IIBranch>;
1031 def JAL : JumpLink<0x03, "jal">;
1032 def JALR : JumpLinkReg<0x00, 0x09, "jalr", CPURegs>;
1033 def BGEZAL : BranchLink<"bgezal", 0x11, CPURegs>;
1034 def BLTZAL : BranchLink<"bltzal", 0x10, CPURegs>;
1035 def TAILCALL : JumpFJ<0x02, calltarget, "j", MipsTailCall, imm>, IsTailCall;
1036 def TAILCALL_R : JumpFR<CPURegs, MipsTailCall>, IsTailCall;
1038 def RET : RetBase<CPURegs>;
1040 /// Multiply and Divide Instructions.
1041 def MULT : Mult32<0x18, "mult", IIImul>;
1042 def MULTu : Mult32<0x19, "multu", IIImul>;
1043 def SDIV : Div32<MipsDivRem, 0x1a, "div", IIIdiv>;
1044 def UDIV : Div32<MipsDivRemU, 0x1b, "divu", IIIdiv>;
1046 def MTHI : MoveToLOHI<0x11, "mthi", CPURegs, [HI]>;
1047 def MTLO : MoveToLOHI<0x13, "mtlo", CPURegs, [LO]>;
1048 def MFHI : MoveFromLOHI<0x10, "mfhi", CPURegs, [HI]>;
1049 def MFLO : MoveFromLOHI<0x12, "mflo", CPURegs, [LO]>;
1051 /// Sign Ext In Register Instructions.
1052 def SEB : SignExtInReg<0x10, "seb", i8, CPURegs>;
1053 def SEH : SignExtInReg<0x18, "seh", i16, CPURegs>;
1056 def CLZ : CountLeading0<0x20, "clz", CPURegs>;
1057 def CLO : CountLeading1<0x21, "clo", CPURegs>;
1059 /// Word Swap Bytes Within Halfwords
1060 def WSBH : SubwordSwap<0x20, 0x2, "wsbh", CPURegs>;
1064 def NOP : FJ<0, (outs), (ins), "nop", [], IIAlu>;
1066 // FrameIndexes are legalized when they are operands from load/store
1067 // instructions. The same not happens for stack address copies, so an
1068 // add op with mem ComplexPattern is used and the stack address copy
1069 // can be matched. It's similar to Sparc LEA_ADDRi
1070 def LEA_ADDiu : EffectiveAddress<0x09,"addiu\t$rt, $addr", CPURegs, mem_ea>;
1072 // DynAlloc node points to dynamically allocated stack space.
1073 // $sp is added to the list of implicitly used registers to prevent dead code
1074 // elimination from removing instructions that modify $sp.
1076 def DynAlloc : EffectiveAddress<0x09,"addiu\t$rt, $addr", CPURegs, mem_ea>;
1079 def MADD : MArithR<0, "madd", MipsMAdd, 1>;
1080 def MADDU : MArithR<1, "maddu", MipsMAddu, 1>;
1081 def MSUB : MArithR<4, "msub", MipsMSub>;
1082 def MSUBU : MArithR<5, "msubu", MipsMSubu>;
1084 // MUL is a assembly macro in the current used ISAs. In recent ISA's
1085 // it is a real instruction.
1086 def MUL : ArithLogicR<0x1c, 0x02, "mul", mul, IIImul, CPURegs, 1>,
1087 Requires<[HasStdEnc]>;
1089 def RDHWR : ReadHardware<CPURegs, HWRegs>;
1091 def EXT : ExtBase<0, "ext", CPURegs>;
1092 def INS : InsBase<4, "ins", CPURegs>;
1094 //===----------------------------------------------------------------------===//
1095 // Instruction aliases
1096 //===----------------------------------------------------------------------===//
1097 def : InstAlias<"move $dst,$src", (ADD CPURegs:$dst,CPURegs:$src,ZERO)>;
1098 def : InstAlias<"bal $offset", (BGEZAL RA,brtarget:$offset)>;
1099 def : InstAlias<"addu $rs,$rt,$imm",
1100 (ADDiu CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1101 def : InstAlias<"add $rs,$rt,$imm",
1102 (ADDi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1103 def : InstAlias<"and $rs,$rt,$imm",
1104 (ANDi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1105 def : InstAlias<"j $rs", (JR CPURegs:$rs)>;
1106 def : InstAlias<"not $rt,$rs", (NOR CPURegs:$rt,CPURegs:$rs,ZERO)>;
1107 def : InstAlias<"neg $rt,$rs", (SUB CPURegs:$rt,ZERO,CPURegs:$rs)>;
1108 def : InstAlias<"negu $rt,$rs", (SUBu CPURegs:$rt,ZERO,CPURegs:$rs)>;
1109 def : InstAlias<"slt $rs,$rt,$imm",
1110 (SLTi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1111 def : InstAlias<"xor $rs,$rt,$imm",
1112 (XORi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1114 //===----------------------------------------------------------------------===//
1115 // Arbitrary patterns that map to one or more instructions
1116 //===----------------------------------------------------------------------===//
1119 def : MipsPat<(i32 immSExt16:$in),
1120 (ADDiu ZERO, imm:$in)>;
1121 def : MipsPat<(i32 immZExt16:$in),
1122 (ORi ZERO, imm:$in)>;
1123 def : MipsPat<(i32 immLow16Zero:$in),
1124 (LUi (HI16 imm:$in))>;
1126 // Arbitrary immediates
1127 def : MipsPat<(i32 imm:$imm),
1128 (ORi (LUi (HI16 imm:$imm)), (LO16 imm:$imm))>;
1130 // Carry MipsPatterns
1131 def : MipsPat<(subc CPURegs:$lhs, CPURegs:$rhs),
1132 (SUBu CPURegs:$lhs, CPURegs:$rhs)>;
1133 def : MipsPat<(addc CPURegs:$lhs, CPURegs:$rhs),
1134 (ADDu CPURegs:$lhs, CPURegs:$rhs)>;
1135 def : MipsPat<(addc CPURegs:$src, immSExt16:$imm),
1136 (ADDiu CPURegs:$src, imm:$imm)>;
1139 def : MipsPat<(MipsJmpLink (i32 tglobaladdr:$dst)),
1140 (JAL tglobaladdr:$dst)>;
1141 def : MipsPat<(MipsJmpLink (i32 texternalsym:$dst)),
1142 (JAL texternalsym:$dst)>;
1143 //def : MipsPat<(MipsJmpLink CPURegs:$dst),
1144 // (JALR CPURegs:$dst)>;
1147 def : MipsPat<(MipsTailCall (iPTR tglobaladdr:$dst)),
1148 (TAILCALL tglobaladdr:$dst)>;
1149 def : MipsPat<(MipsTailCall (iPTR texternalsym:$dst)),
1150 (TAILCALL texternalsym:$dst)>;
1152 def : MipsPat<(MipsHi tglobaladdr:$in), (LUi tglobaladdr:$in)>;
1153 def : MipsPat<(MipsHi tblockaddress:$in), (LUi tblockaddress:$in)>;
1154 def : MipsPat<(MipsHi tjumptable:$in), (LUi tjumptable:$in)>;
1155 def : MipsPat<(MipsHi tconstpool:$in), (LUi tconstpool:$in)>;
1156 def : MipsPat<(MipsHi tglobaltlsaddr:$in), (LUi tglobaltlsaddr:$in)>;
1157 def : MipsPat<(MipsHi texternalsym:$in), (LUi texternalsym:$in)>;
1159 def : MipsPat<(MipsLo tglobaladdr:$in), (ADDiu ZERO, tglobaladdr:$in)>;
1160 def : MipsPat<(MipsLo tblockaddress:$in), (ADDiu ZERO, tblockaddress:$in)>;
1161 def : MipsPat<(MipsLo tjumptable:$in), (ADDiu ZERO, tjumptable:$in)>;
1162 def : MipsPat<(MipsLo tconstpool:$in), (ADDiu ZERO, tconstpool:$in)>;
1163 def : MipsPat<(MipsLo tglobaltlsaddr:$in), (ADDiu ZERO, tglobaltlsaddr:$in)>;
1164 def : MipsPat<(MipsLo texternalsym:$in), (ADDiu ZERO, texternalsym:$in)>;
1166 def : MipsPat<(add CPURegs:$hi, (MipsLo tglobaladdr:$lo)),
1167 (ADDiu CPURegs:$hi, tglobaladdr:$lo)>;
1168 def : MipsPat<(add CPURegs:$hi, (MipsLo tblockaddress:$lo)),
1169 (ADDiu CPURegs:$hi, tblockaddress:$lo)>;
1170 def : MipsPat<(add CPURegs:$hi, (MipsLo tjumptable:$lo)),
1171 (ADDiu CPURegs:$hi, tjumptable:$lo)>;
1172 def : MipsPat<(add CPURegs:$hi, (MipsLo tconstpool:$lo)),
1173 (ADDiu CPURegs:$hi, tconstpool:$lo)>;
1174 def : MipsPat<(add CPURegs:$hi, (MipsLo tglobaltlsaddr:$lo)),
1175 (ADDiu CPURegs:$hi, tglobaltlsaddr:$lo)>;
1178 def : MipsPat<(add CPURegs:$gp, (MipsGPRel tglobaladdr:$in)),
1179 (ADDiu CPURegs:$gp, tglobaladdr:$in)>;
1180 def : MipsPat<(add CPURegs:$gp, (MipsGPRel tconstpool:$in)),
1181 (ADDiu CPURegs:$gp, tconstpool:$in)>;
1184 class WrapperPat<SDNode node, Instruction ADDiuOp, RegisterClass RC>:
1185 MipsPat<(MipsWrapper RC:$gp, node:$in),
1186 (ADDiuOp RC:$gp, node:$in)>;
1188 def : WrapperPat<tglobaladdr, ADDiu, CPURegs>;
1189 def : WrapperPat<tconstpool, ADDiu, CPURegs>;
1190 def : WrapperPat<texternalsym, ADDiu, CPURegs>;
1191 def : WrapperPat<tblockaddress, ADDiu, CPURegs>;
1192 def : WrapperPat<tjumptable, ADDiu, CPURegs>;
1193 def : WrapperPat<tglobaltlsaddr, ADDiu, CPURegs>;
1195 // Mips does not have "not", so we expand our way
1196 def : MipsPat<(not CPURegs:$in),
1197 (NOR CPURegs:$in, ZERO)>;
1200 let Predicates = [NotN64, HasStdEnc] in {
1201 def : MipsPat<(i32 (extloadi1 addr:$src)), (LBu addr:$src)>;
1202 def : MipsPat<(i32 (extloadi8 addr:$src)), (LBu addr:$src)>;
1203 def : MipsPat<(i32 (extloadi16 addr:$src)), (LHu addr:$src)>;
1205 let Predicates = [IsN64, HasStdEnc] in {
1206 def : MipsPat<(i32 (extloadi1 addr:$src)), (LBu_P8 addr:$src)>;
1207 def : MipsPat<(i32 (extloadi8 addr:$src)), (LBu_P8 addr:$src)>;
1208 def : MipsPat<(i32 (extloadi16 addr:$src)), (LHu_P8 addr:$src)>;
1212 let Predicates = [NotN64, HasStdEnc] in {
1213 def : MipsPat<(store (i32 0), addr:$dst), (SW ZERO, addr:$dst)>;
1215 let Predicates = [IsN64, HasStdEnc] in {
1216 def : MipsPat<(store (i32 0), addr:$dst), (SW_P8 ZERO, addr:$dst)>;
1220 multiclass BrcondPats<RegisterClass RC, Instruction BEQOp, Instruction BNEOp,
1221 Instruction SLTOp, Instruction SLTuOp, Instruction SLTiOp,
1222 Instruction SLTiuOp, Register ZEROReg> {
1223 def : MipsPat<(brcond (i32 (setne RC:$lhs, 0)), bb:$dst),
1224 (BNEOp RC:$lhs, ZEROReg, bb:$dst)>;
1225 def : MipsPat<(brcond (i32 (seteq RC:$lhs, 0)), bb:$dst),
1226 (BEQOp RC:$lhs, ZEROReg, bb:$dst)>;
1228 def : MipsPat<(brcond (i32 (setge RC:$lhs, RC:$rhs)), bb:$dst),
1229 (BEQ (SLTOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>;
1230 def : MipsPat<(brcond (i32 (setuge RC:$lhs, RC:$rhs)), bb:$dst),
1231 (BEQ (SLTuOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>;
1232 def : MipsPat<(brcond (i32 (setge RC:$lhs, immSExt16:$rhs)), bb:$dst),
1233 (BEQ (SLTiOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
1234 def : MipsPat<(brcond (i32 (setuge RC:$lhs, immSExt16:$rhs)), bb:$dst),
1235 (BEQ (SLTiuOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
1237 def : MipsPat<(brcond (i32 (setle RC:$lhs, RC:$rhs)), bb:$dst),
1238 (BEQ (SLTOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>;
1239 def : MipsPat<(brcond (i32 (setule RC:$lhs, RC:$rhs)), bb:$dst),
1240 (BEQ (SLTuOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>;
1242 def : MipsPat<(brcond RC:$cond, bb:$dst),
1243 (BNEOp RC:$cond, ZEROReg, bb:$dst)>;
1246 defm : BrcondPats<CPURegs, BEQ, BNE, SLT, SLTu, SLTi, SLTiu, ZERO>;
1249 multiclass SeteqPats<RegisterClass RC, Instruction SLTiuOp, Instruction XOROp,
1250 Instruction SLTuOp, Register ZEROReg> {
1251 def : MipsPat<(seteq RC:$lhs, RC:$rhs),
1252 (SLTiuOp (XOROp RC:$lhs, RC:$rhs), 1)>;
1253 def : MipsPat<(setne RC:$lhs, RC:$rhs),
1254 (SLTuOp ZEROReg, (XOROp RC:$lhs, RC:$rhs))>;
1257 multiclass SetlePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1258 def : MipsPat<(setle RC:$lhs, RC:$rhs),
1259 (XORi (SLTOp RC:$rhs, RC:$lhs), 1)>;
1260 def : MipsPat<(setule RC:$lhs, RC:$rhs),
1261 (XORi (SLTuOp RC:$rhs, RC:$lhs), 1)>;
1264 multiclass SetgtPats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1265 def : MipsPat<(setgt RC:$lhs, RC:$rhs),
1266 (SLTOp RC:$rhs, RC:$lhs)>;
1267 def : MipsPat<(setugt RC:$lhs, RC:$rhs),
1268 (SLTuOp RC:$rhs, RC:$lhs)>;
1271 multiclass SetgePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1272 def : MipsPat<(setge RC:$lhs, RC:$rhs),
1273 (XORi (SLTOp RC:$lhs, RC:$rhs), 1)>;
1274 def : MipsPat<(setuge RC:$lhs, RC:$rhs),
1275 (XORi (SLTuOp RC:$lhs, RC:$rhs), 1)>;
1278 multiclass SetgeImmPats<RegisterClass RC, Instruction SLTiOp,
1279 Instruction SLTiuOp> {
1280 def : MipsPat<(setge RC:$lhs, immSExt16:$rhs),
1281 (XORi (SLTiOp RC:$lhs, immSExt16:$rhs), 1)>;
1282 def : MipsPat<(setuge RC:$lhs, immSExt16:$rhs),
1283 (XORi (SLTiuOp RC:$lhs, immSExt16:$rhs), 1)>;
1286 defm : SeteqPats<CPURegs, SLTiu, XOR, SLTu, ZERO>;
1287 defm : SetlePats<CPURegs, SLT, SLTu>;
1288 defm : SetgtPats<CPURegs, SLT, SLTu>;
1289 defm : SetgePats<CPURegs, SLT, SLTu>;
1290 defm : SetgeImmPats<CPURegs, SLTi, SLTiu>;
1292 // select MipsDynAlloc
1293 def : MipsPat<(MipsDynAlloc addr:$f), (DynAlloc addr:$f)>;
1296 def : MipsPat<(bswap CPURegs:$rt), (ROTR (WSBH CPURegs:$rt), 16)>;
1298 //===----------------------------------------------------------------------===//
1299 // Floating Point Support
1300 //===----------------------------------------------------------------------===//
1302 include "MipsInstrFPU.td"
1303 include "Mips64InstrInfo.td"
1304 include "MipsCondMov.td"
1309 include "Mips16InstrFormats.td"
1310 include "Mips16InstrInfo.td"
1313 include "MipsDSPInstrFormats.td"
1314 include "MipsDSPInstrInfo.td"