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 HasMips32 : Predicate<"Subtarget.hasMips32()">,
152 AssemblerPredicate<"FeatureMips32">;
153 def HasMips32r2 : Predicate<"Subtarget.hasMips32r2()">,
154 AssemblerPredicate<"FeatureMips32r2">;
155 def HasMips64 : Predicate<"Subtarget.hasMips64()">,
156 AssemblerPredicate<"FeatureMips64">;
157 def HasMips32r2Or64 : Predicate<"Subtarget.hasMips32r2Or64()">,
158 AssemblerPredicate<"FeatureMips32r2,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 HasStandardEncoding : Predicate<"Subtarget.hasStandardEncoding()">,
176 AssemblerPredicate<"!FeatureMips16">;
178 class MipsPat<dag pattern, dag result> : Pat<pattern, result> {
179 let Predicates = [HasStandardEncoding];
194 //===----------------------------------------------------------------------===//
195 // Instruction format superclass
196 //===----------------------------------------------------------------------===//
198 include "MipsInstrFormats.td"
200 //===----------------------------------------------------------------------===//
201 // Mips Operand, Complex Patterns and Transformations Definitions.
202 //===----------------------------------------------------------------------===//
204 // Instruction operand types
205 def jmptarget : Operand<OtherVT> {
206 let EncoderMethod = "getJumpTargetOpValue";
208 def brtarget : Operand<OtherVT> {
209 let EncoderMethod = "getBranchTargetOpValue";
210 let OperandType = "OPERAND_PCREL";
211 let DecoderMethod = "DecodeBranchTarget";
213 def calltarget : Operand<iPTR> {
214 let EncoderMethod = "getJumpTargetOpValue";
216 def calltarget64: Operand<i64>;
217 def simm16 : Operand<i32> {
218 let DecoderMethod= "DecodeSimm16";
220 def simm16_64 : Operand<i64>;
221 def shamt : Operand<i32>;
224 def uimm16 : Operand<i32> {
225 let PrintMethod = "printUnsignedImm";
228 def MipsMemAsmOperand : AsmOperandClass {
230 let ParserMethod = "parseMemOperand";
234 def mem : Operand<i32> {
235 let PrintMethod = "printMemOperand";
236 let MIOperandInfo = (ops CPURegs, simm16);
237 let EncoderMethod = "getMemEncoding";
238 let ParserMatchClass = MipsMemAsmOperand;
241 def mem64 : Operand<i64> {
242 let PrintMethod = "printMemOperand";
243 let MIOperandInfo = (ops CPU64Regs, simm16_64);
244 let EncoderMethod = "getMemEncoding";
245 let ParserMatchClass = MipsMemAsmOperand;
248 def mem_ea : Operand<i32> {
249 let PrintMethod = "printMemOperandEA";
250 let MIOperandInfo = (ops CPURegs, simm16);
251 let EncoderMethod = "getMemEncoding";
254 def mem_ea_64 : Operand<i64> {
255 let PrintMethod = "printMemOperandEA";
256 let MIOperandInfo = (ops CPU64Regs, simm16_64);
257 let EncoderMethod = "getMemEncoding";
260 // size operand of ext instruction
261 def size_ext : Operand<i32> {
262 let EncoderMethod = "getSizeExtEncoding";
263 let DecoderMethod = "DecodeExtSize";
266 // size operand of ins instruction
267 def size_ins : Operand<i32> {
268 let EncoderMethod = "getSizeInsEncoding";
269 let DecoderMethod = "DecodeInsSize";
272 // Transformation Function - get the lower 16 bits.
273 def LO16 : SDNodeXForm<imm, [{
274 return getImm(N, N->getZExtValue() & 0xFFFF);
277 // Transformation Function - get the higher 16 bits.
278 def HI16 : SDNodeXForm<imm, [{
279 return getImm(N, (N->getZExtValue() >> 16) & 0xFFFF);
282 // Node immediate fits as 16-bit sign extended on target immediate.
284 def immSExt16 : PatLeaf<(imm), [{ return isInt<16>(N->getSExtValue()); }]>;
286 // Node immediate fits as 16-bit zero extended on target immediate.
287 // The LO16 param means that only the lower 16 bits of the node
288 // immediate are caught.
290 def immZExt16 : PatLeaf<(imm), [{
291 if (N->getValueType(0) == MVT::i32)
292 return (uint32_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
294 return (uint64_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
297 // Immediate can be loaded with LUi (32-bit int with lower 16-bit cleared).
298 def immLow16Zero : PatLeaf<(imm), [{
299 int64_t Val = N->getSExtValue();
300 return isInt<32>(Val) && !(Val & 0xffff);
303 // shamt field must fit in 5 bits.
304 def immZExt5 : ImmLeaf<i32, [{return Imm == (Imm & 0x1f);}]>;
306 // Mips Address Mode! SDNode frameindex could possibily be a match
307 // since load and store instructions from stack used it.
309 ComplexPattern<iPTR, 2, "SelectAddr", [frameindex], [SDNPWantParent]>;
311 //===----------------------------------------------------------------------===//
312 // Instructions specific format
313 //===----------------------------------------------------------------------===//
315 /// Move Control Registers From/To CPU Registers
316 def MFC0_3OP : MFC3OP<0x10, 0, (outs CPURegs:$rt),
317 (ins CPURegs:$rd, uimm16:$sel),"mfc0\t$rt, $rd, $sel">;
318 def : InstAlias<"mfc0 $rt, $rd", (MFC0_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
320 def MTC0_3OP : MFC3OP<0x10, 4, (outs CPURegs:$rd, uimm16:$sel),
321 (ins CPURegs:$rt),"mtc0\t$rt, $rd, $sel">;
322 def : InstAlias<"mtc0 $rt, $rd", (MTC0_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
324 def MFC2_3OP : MFC3OP<0x12, 0, (outs CPURegs:$rt),
325 (ins CPURegs:$rd, uimm16:$sel),"mfc2\t$rt, $rd, $sel">;
326 def : InstAlias<"mfc2 $rt, $rd", (MFC2_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
328 def MTC2_3OP : MFC3OP<0x12, 4, (outs CPURegs:$rd, uimm16:$sel),
329 (ins CPURegs:$rt),"mtc2\t$rt, $rd, $sel">;
330 def : InstAlias<"mtc2 $rt, $rd", (MTC2_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
332 // Arithmetic and logical instructions with 3 register operands.
333 class ArithLogicR<bits<6> op, bits<6> func, string instr_asm, SDNode OpNode,
334 InstrItinClass itin, RegisterClass RC, bit isComm = 0>:
335 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
336 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
337 [(set RC:$rd, (OpNode RC:$rs, RC:$rt))], itin> {
339 let isCommutable = isComm;
340 let isReMaterializable = 1;
343 class ArithOverflowR<bits<6> op, bits<6> func, string instr_asm,
344 InstrItinClass itin, RegisterClass RC, bit isComm = 0>:
345 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
346 !strconcat(instr_asm, "\t$rd, $rs, $rt"), [], itin> {
348 let isCommutable = isComm;
351 // Arithmetic and logical instructions with 2 register operands.
352 class ArithLogicI<bits<6> op, string instr_asm, SDNode OpNode,
353 Operand Od, PatLeaf imm_type, RegisterClass RC> :
354 FI<op, (outs RC:$rt), (ins RC:$rs, Od:$imm16),
355 !strconcat(instr_asm, "\t$rt, $rs, $imm16"),
356 [(set RC:$rt, (OpNode RC:$rs, imm_type:$imm16))], IIAlu> {
357 let isReMaterializable = 1;
360 class ArithOverflowI<bits<6> op, string instr_asm, SDNode OpNode,
361 Operand Od, PatLeaf imm_type, RegisterClass RC> :
362 FI<op, (outs RC:$rt), (ins RC:$rs, Od:$imm16),
363 !strconcat(instr_asm, "\t$rt, $rs, $imm16"), [], IIAlu>;
365 // Arithmetic Multiply ADD/SUB
366 let rd = 0, shamt = 0, Defs = [HI, LO], Uses = [HI, LO] in
367 class MArithR<bits<6> func, string instr_asm, SDNode op, bit isComm = 0> :
368 FR<0x1c, func, (outs), (ins CPURegs:$rs, CPURegs:$rt),
369 !strconcat(instr_asm, "\t$rs, $rt"),
370 [(op CPURegs:$rs, CPURegs:$rt, LO, HI)], IIImul> {
373 let isCommutable = isComm;
377 class LogicNOR<bits<6> op, bits<6> func, string instr_asm, RegisterClass RC>:
378 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
379 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
380 [(set RC:$rd, (not (or RC:$rs, RC:$rt)))], IIAlu> {
382 let isCommutable = 1;
386 class shift_rotate_imm<bits<6> func, bits<5> isRotate, string instr_asm,
387 SDNode OpNode, PatFrag PF, Operand ImmOpnd,
389 FR<0x00, func, (outs RC:$rd), (ins RC:$rt, ImmOpnd:$shamt),
390 !strconcat(instr_asm, "\t$rd, $rt, $shamt"),
391 [(set RC:$rd, (OpNode RC:$rt, PF:$shamt))], IIAlu> {
395 // 32-bit shift instructions.
396 class shift_rotate_imm32<bits<6> func, bits<5> isRotate, string instr_asm,
398 shift_rotate_imm<func, isRotate, instr_asm, OpNode, immZExt5, shamt, CPURegs>;
400 class shift_rotate_reg<bits<6> func, bits<5> isRotate, string instr_asm,
401 SDNode OpNode, RegisterClass RC>:
402 FR<0x00, func, (outs RC:$rd), (ins CPURegs:$rs, RC:$rt),
403 !strconcat(instr_asm, "\t$rd, $rt, $rs"),
404 [(set RC:$rd, (OpNode RC:$rt, CPURegs:$rs))], IIAlu> {
405 let shamt = isRotate;
408 // Load Upper Imediate
409 class LoadUpper<bits<6> op, string instr_asm, RegisterClass RC, Operand Imm>:
410 FI<op, (outs RC:$rt), (ins Imm:$imm16),
411 !strconcat(instr_asm, "\t$rt, $imm16"), [], IIAlu> {
413 let neverHasSideEffects = 1;
414 let isReMaterializable = 1;
417 class FMem<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
418 InstrItinClass itin>: FFI<op, outs, ins, asmstr, pattern> {
420 let Inst{25-21} = addr{20-16};
421 let Inst{15-0} = addr{15-0};
422 let DecoderMethod = "DecodeMem";
426 let canFoldAsLoad = 1 in
427 class LoadM<bits<6> op, string instr_asm, PatFrag OpNode, RegisterClass RC,
428 Operand MemOpnd, bit Pseudo>:
429 FMem<op, (outs RC:$rt), (ins MemOpnd:$addr),
430 !strconcat(instr_asm, "\t$rt, $addr"),
431 [(set RC:$rt, (OpNode addr:$addr))], IILoad> {
432 let isPseudo = Pseudo;
435 class StoreM<bits<6> op, string instr_asm, PatFrag OpNode, RegisterClass RC,
436 Operand MemOpnd, bit Pseudo>:
437 FMem<op, (outs), (ins RC:$rt, MemOpnd:$addr),
438 !strconcat(instr_asm, "\t$rt, $addr"),
439 [(OpNode RC:$rt, addr:$addr)], IIStore> {
440 let isPseudo = Pseudo;
444 multiclass LoadM32<bits<6> op, string instr_asm, PatFrag OpNode,
446 def #NAME# : LoadM<op, instr_asm, OpNode, CPURegs, mem, Pseudo>,
447 Requires<[NotN64, HasStandardEncoding]>;
448 def _P8 : LoadM<op, instr_asm, OpNode, CPURegs, mem64, Pseudo>,
449 Requires<[IsN64, HasStandardEncoding]> {
450 let DecoderNamespace = "Mips64";
451 let isCodeGenOnly = 1;
456 multiclass LoadM64<bits<6> op, string instr_asm, PatFrag OpNode,
458 def #NAME# : LoadM<op, instr_asm, OpNode, CPU64Regs, mem, Pseudo>,
459 Requires<[NotN64, HasStandardEncoding]>;
460 def _P8 : LoadM<op, instr_asm, OpNode, CPU64Regs, mem64, Pseudo>,
461 Requires<[IsN64, HasStandardEncoding]> {
462 let DecoderNamespace = "Mips64";
463 let isCodeGenOnly = 1;
468 multiclass StoreM32<bits<6> op, string instr_asm, PatFrag OpNode,
470 def #NAME# : StoreM<op, instr_asm, OpNode, CPURegs, mem, Pseudo>,
471 Requires<[NotN64, HasStandardEncoding]>;
472 def _P8 : StoreM<op, instr_asm, OpNode, CPURegs, mem64, Pseudo>,
473 Requires<[IsN64, HasStandardEncoding]> {
474 let DecoderNamespace = "Mips64";
475 let isCodeGenOnly = 1;
480 multiclass StoreM64<bits<6> op, string instr_asm, PatFrag OpNode,
482 def #NAME# : StoreM<op, instr_asm, OpNode, CPU64Regs, mem, Pseudo>,
483 Requires<[NotN64, HasStandardEncoding]>;
484 def _P8 : StoreM<op, instr_asm, OpNode, CPU64Regs, mem64, Pseudo>,
485 Requires<[IsN64, HasStandardEncoding]> {
486 let DecoderNamespace = "Mips64";
487 let isCodeGenOnly = 1;
491 // Load/Store Left/Right
492 let canFoldAsLoad = 1 in
493 class LoadLeftRight<bits<6> op, string instr_asm, SDNode OpNode,
494 RegisterClass RC, Operand MemOpnd> :
495 FMem<op, (outs RC:$rt), (ins MemOpnd:$addr, RC:$src),
496 !strconcat(instr_asm, "\t$rt, $addr"),
497 [(set RC:$rt, (OpNode addr:$addr, RC:$src))], IILoad> {
498 string Constraints = "$src = $rt";
501 class StoreLeftRight<bits<6> op, string instr_asm, SDNode OpNode,
502 RegisterClass RC, Operand MemOpnd>:
503 FMem<op, (outs), (ins RC:$rt, MemOpnd:$addr),
504 !strconcat(instr_asm, "\t$rt, $addr"), [(OpNode RC:$rt, addr:$addr)],
507 // 32-bit load left/right.
508 multiclass LoadLeftRightM32<bits<6> op, string instr_asm, SDNode OpNode> {
509 def #NAME# : LoadLeftRight<op, instr_asm, OpNode, CPURegs, mem>,
510 Requires<[NotN64, HasStandardEncoding]>;
511 def _P8 : LoadLeftRight<op, instr_asm, OpNode, CPURegs, mem64>,
512 Requires<[IsN64, HasStandardEncoding]> {
513 let DecoderNamespace = "Mips64";
514 let isCodeGenOnly = 1;
518 // 64-bit load left/right.
519 multiclass LoadLeftRightM64<bits<6> op, string instr_asm, SDNode OpNode> {
520 def #NAME# : LoadLeftRight<op, instr_asm, OpNode, CPU64Regs, mem>,
521 Requires<[NotN64, HasStandardEncoding]>;
522 def _P8 : LoadLeftRight<op, instr_asm, OpNode, CPU64Regs, mem64>,
523 Requires<[IsN64, HasStandardEncoding]> {
524 let DecoderNamespace = "Mips64";
525 let isCodeGenOnly = 1;
529 // 32-bit store left/right.
530 multiclass StoreLeftRightM32<bits<6> op, string instr_asm, SDNode OpNode> {
531 def #NAME# : StoreLeftRight<op, instr_asm, OpNode, CPURegs, mem>,
532 Requires<[NotN64, HasStandardEncoding]>;
533 def _P8 : StoreLeftRight<op, instr_asm, OpNode, CPURegs, mem64>,
534 Requires<[IsN64, HasStandardEncoding]> {
535 let DecoderNamespace = "Mips64";
536 let isCodeGenOnly = 1;
540 // 64-bit store left/right.
541 multiclass StoreLeftRightM64<bits<6> op, string instr_asm, SDNode OpNode> {
542 def #NAME# : StoreLeftRight<op, instr_asm, OpNode, CPU64Regs, mem>,
543 Requires<[NotN64, HasStandardEncoding]>;
544 def _P8 : StoreLeftRight<op, instr_asm, OpNode, CPU64Regs, mem64>,
545 Requires<[IsN64, HasStandardEncoding]> {
546 let DecoderNamespace = "Mips64";
547 let isCodeGenOnly = 1;
551 // Conditional Branch
552 class CBranch<bits<6> op, string instr_asm, PatFrag cond_op, RegisterClass RC>:
553 BranchBase<op, (outs), (ins RC:$rs, RC:$rt, brtarget:$imm16),
554 !strconcat(instr_asm, "\t$rs, $rt, $imm16"),
555 [(brcond (i32 (cond_op RC:$rs, RC:$rt)), bb:$imm16)], IIBranch> {
557 let isTerminator = 1;
558 let hasDelaySlot = 1;
562 class CBranchZero<bits<6> op, bits<5> _rt, string instr_asm, PatFrag cond_op,
564 BranchBase<op, (outs), (ins RC:$rs, brtarget:$imm16),
565 !strconcat(instr_asm, "\t$rs, $imm16"),
566 [(brcond (i32 (cond_op RC:$rs, 0)), bb:$imm16)], IIBranch> {
569 let isTerminator = 1;
570 let hasDelaySlot = 1;
575 class SetCC_R<bits<6> op, bits<6> func, string instr_asm, PatFrag cond_op,
577 FR<op, func, (outs CPURegs:$rd), (ins RC:$rs, RC:$rt),
578 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
579 [(set CPURegs:$rd, (cond_op RC:$rs, RC:$rt))],
584 class SetCC_I<bits<6> op, string instr_asm, PatFrag cond_op, Operand Od,
585 PatLeaf imm_type, RegisterClass RC>:
586 FI<op, (outs CPURegs:$rt), (ins RC:$rs, Od:$imm16),
587 !strconcat(instr_asm, "\t$rt, $rs, $imm16"),
588 [(set CPURegs:$rt, (cond_op RC:$rs, imm_type:$imm16))],
592 class JumpFJ<bits<6> op, string instr_asm, SDPatternOperator operator>:
593 FJ<op, (outs), (ins jmptarget:$target), !strconcat(instr_asm, "\t$target"),
594 [(operator bb:$target)], IIBranch> {
597 let hasDelaySlot = 1;
598 let DecoderMethod = "DecodeJumpTarget";
602 // Unconditional branch
603 class UncondBranch<bits<6> op, string instr_asm>:
604 BranchBase<op, (outs), (ins brtarget:$imm16),
605 !strconcat(instr_asm, "\t$imm16"), [(br bb:$imm16)], IIBranch> {
609 let isTerminator = 1;
611 let hasDelaySlot = 1;
612 let Predicates = [RelocPIC, HasStandardEncoding];
616 // Base class for indirect branch and return instruction classes.
617 let isTerminator=1, isBarrier=1, hasDelaySlot = 1 in
618 class JumpFR<RegisterClass RC, SDPatternOperator operator = null_frag>:
619 FR<0, 0x8, (outs), (ins RC:$rs), "jr\t$rs", [(operator RC:$rs)], IIBranch> {
626 class IndirectBranch<RegisterClass RC>: JumpFR<RC, brind> {
628 let isIndirectBranch = 1;
631 // Return instruction
632 class RetBase<RegisterClass RC>: JumpFR<RC> {
634 let isCodeGenOnly = 1;
636 let hasExtraSrcRegAllocReq = 1;
639 // Jump and Link (Call)
640 let isCall=1, hasDelaySlot=1, Defs = [RA] in {
641 class JumpLink<bits<6> op, string instr_asm>:
642 FJ<op, (outs), (ins calltarget:$target),
643 !strconcat(instr_asm, "\t$target"), [(MipsJmpLink imm:$target)],
645 let DecoderMethod = "DecodeJumpTarget";
648 class JumpLinkReg<bits<6> op, bits<6> func, string instr_asm,
650 FR<op, func, (outs), (ins RC:$rs),
651 !strconcat(instr_asm, "\t$rs"), [(MipsJmpLink RC:$rs)], IIBranch> {
657 class BranchLink<string instr_asm, bits<5> _rt, RegisterClass RC>:
658 FI<0x1, (outs), (ins RC:$rs, brtarget:$imm16),
659 !strconcat(instr_asm, "\t$rs, $imm16"), [], IIBranch> {
665 class Mult<bits<6> func, string instr_asm, InstrItinClass itin,
666 RegisterClass RC, list<Register> DefRegs>:
667 FR<0x00, func, (outs), (ins RC:$rs, RC:$rt),
668 !strconcat(instr_asm, "\t$rs, $rt"), [], itin> {
671 let isCommutable = 1;
673 let neverHasSideEffects = 1;
676 class Mult32<bits<6> func, string instr_asm, InstrItinClass itin>:
677 Mult<func, instr_asm, itin, CPURegs, [HI, LO]>;
679 class Div<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin,
680 RegisterClass RC, list<Register> DefRegs>:
681 FR<0x00, func, (outs), (ins RC:$rs, RC:$rt),
682 !strconcat(instr_asm, "\t$$zero, $rs, $rt"),
683 [(op RC:$rs, RC:$rt)], itin> {
689 class Div32<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin>:
690 Div<op, func, instr_asm, itin, CPURegs, [HI, LO]>;
693 class MoveFromLOHI<bits<6> func, string instr_asm, RegisterClass RC,
694 list<Register> UseRegs>:
695 FR<0x00, func, (outs RC:$rd), (ins),
696 !strconcat(instr_asm, "\t$rd"), [], IIHiLo> {
701 let neverHasSideEffects = 1;
704 class MoveToLOHI<bits<6> func, string instr_asm, RegisterClass RC,
705 list<Register> DefRegs>:
706 FR<0x00, func, (outs), (ins RC:$rs),
707 !strconcat(instr_asm, "\t$rs"), [], IIHiLo> {
712 let neverHasSideEffects = 1;
715 class EffectiveAddress<bits<6> opc, string instr_asm, RegisterClass RC, Operand Mem> :
716 FMem<opc, (outs RC:$rt), (ins Mem:$addr),
717 instr_asm, [(set RC:$rt, addr:$addr)], IIAlu> {
718 let isCodeGenOnly = 1;
721 // Count Leading Ones/Zeros in Word
722 class CountLeading0<bits<6> func, string instr_asm, RegisterClass RC>:
723 FR<0x1c, func, (outs RC:$rd), (ins RC:$rs),
724 !strconcat(instr_asm, "\t$rd, $rs"),
725 [(set RC:$rd, (ctlz RC:$rs))], IIAlu>,
726 Requires<[HasBitCount, HasStandardEncoding]> {
731 class CountLeading1<bits<6> func, string instr_asm, RegisterClass RC>:
732 FR<0x1c, func, (outs RC:$rd), (ins RC:$rs),
733 !strconcat(instr_asm, "\t$rd, $rs"),
734 [(set RC:$rd, (ctlz (not RC:$rs)))], IIAlu>,
735 Requires<[HasBitCount, HasStandardEncoding]> {
740 // Sign Extend in Register.
741 class SignExtInReg<bits<5> sa, string instr_asm, ValueType vt,
743 FR<0x1f, 0x20, (outs RC:$rd), (ins RC:$rt),
744 !strconcat(instr_asm, "\t$rd, $rt"),
745 [(set RC:$rd, (sext_inreg RC:$rt, vt))], NoItinerary> {
748 let Predicates = [HasSEInReg, HasStandardEncoding];
752 class SubwordSwap<bits<6> func, bits<5> sa, string instr_asm, RegisterClass RC>:
753 FR<0x1f, func, (outs RC:$rd), (ins RC:$rt),
754 !strconcat(instr_asm, "\t$rd, $rt"), [], NoItinerary> {
757 let Predicates = [HasSwap, HasStandardEncoding];
758 let neverHasSideEffects = 1;
762 class ReadHardware<RegisterClass CPURegClass, RegisterClass HWRegClass>
763 : FR<0x1f, 0x3b, (outs CPURegClass:$rt), (ins HWRegClass:$rd),
764 "rdhwr\t$rt, $rd", [], IIAlu> {
770 class ExtBase<bits<6> _funct, string instr_asm, RegisterClass RC>:
771 FR<0x1f, _funct, (outs RC:$rt), (ins RC:$rs, uimm16:$pos, size_ext:$sz),
772 !strconcat(instr_asm, " $rt, $rs, $pos, $sz"),
773 [(set RC:$rt, (MipsExt RC:$rs, imm:$pos, imm:$sz))], NoItinerary> {
778 let Predicates = [HasMips32r2, HasStandardEncoding];
781 class InsBase<bits<6> _funct, string instr_asm, RegisterClass RC>:
782 FR<0x1f, _funct, (outs RC:$rt),
783 (ins RC:$rs, uimm16:$pos, size_ins:$sz, RC:$src),
784 !strconcat(instr_asm, " $rt, $rs, $pos, $sz"),
785 [(set RC:$rt, (MipsIns RC:$rs, imm:$pos, imm:$sz, RC:$src))],
791 let Predicates = [HasMips32r2, HasStandardEncoding];
792 let Constraints = "$src = $rt";
795 // Atomic instructions with 2 source operands (ATOMIC_SWAP & ATOMIC_LOAD_*).
796 class Atomic2Ops<PatFrag Op, string Opstr, RegisterClass DRC,
798 PseudoSE<(outs DRC:$dst), (ins PRC:$ptr, DRC:$incr),
799 !strconcat("atomic_", Opstr, "\t$dst, $ptr, $incr"),
800 [(set DRC:$dst, (Op PRC:$ptr, DRC:$incr))]>;
802 multiclass Atomic2Ops32<PatFrag Op, string Opstr> {
803 def #NAME# : Atomic2Ops<Op, Opstr, CPURegs, CPURegs>,
804 Requires<[NotN64, HasStandardEncoding]>;
805 def _P8 : Atomic2Ops<Op, Opstr, CPURegs, CPU64Regs>,
806 Requires<[IsN64, HasStandardEncoding]> {
807 let DecoderNamespace = "Mips64";
811 // Atomic Compare & Swap.
812 class AtomicCmpSwap<PatFrag Op, string Width, RegisterClass DRC,
814 PseudoSE<(outs DRC:$dst), (ins PRC:$ptr, DRC:$cmp, DRC:$swap),
815 !strconcat("atomic_cmp_swap_", Width, "\t$dst, $ptr, $cmp, $swap"),
816 [(set DRC:$dst, (Op PRC:$ptr, DRC:$cmp, DRC:$swap))]>;
818 multiclass AtomicCmpSwap32<PatFrag Op, string Width> {
819 def #NAME# : AtomicCmpSwap<Op, Width, CPURegs, CPURegs>,
820 Requires<[NotN64, HasStandardEncoding]>;
821 def _P8 : AtomicCmpSwap<Op, Width, CPURegs, CPU64Regs>,
822 Requires<[IsN64, HasStandardEncoding]> {
823 let DecoderNamespace = "Mips64";
827 class LLBase<bits<6> Opc, string opstring, RegisterClass RC, Operand Mem> :
828 FMem<Opc, (outs RC:$rt), (ins Mem:$addr),
829 !strconcat(opstring, "\t$rt, $addr"), [], IILoad> {
833 class SCBase<bits<6> Opc, string opstring, RegisterClass RC, Operand Mem> :
834 FMem<Opc, (outs RC:$dst), (ins RC:$rt, Mem:$addr),
835 !strconcat(opstring, "\t$rt, $addr"), [], IIStore> {
837 let Constraints = "$rt = $dst";
840 //===----------------------------------------------------------------------===//
841 // Pseudo instructions
842 //===----------------------------------------------------------------------===//
845 let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1, hasCtrlDep=1 in
846 def RetRA : PseudoSE<(outs), (ins), "", [(MipsRet)]>;
848 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
849 def ADJCALLSTACKDOWN : MipsPseudo<(outs), (ins i32imm:$amt),
850 "!ADJCALLSTACKDOWN $amt",
851 [(callseq_start timm:$amt)]>;
852 def ADJCALLSTACKUP : MipsPseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
853 "!ADJCALLSTACKUP $amt1",
854 [(callseq_end timm:$amt1, timm:$amt2)]>;
857 // When handling PIC code the assembler needs .cpload and .cprestore
858 // directives. If the real instructions corresponding these directives
859 // are used, we have the same behavior, but get also a bunch of warnings
860 // from the assembler.
861 let neverHasSideEffects = 1 in
862 def CPRESTORE : PseudoSE<(outs), (ins i32imm:$loc, CPURegs:$gp),
863 ".cprestore\t$loc", []>;
865 let usesCustomInserter = 1 in {
866 defm ATOMIC_LOAD_ADD_I8 : Atomic2Ops32<atomic_load_add_8, "load_add_8">;
867 defm ATOMIC_LOAD_ADD_I16 : Atomic2Ops32<atomic_load_add_16, "load_add_16">;
868 defm ATOMIC_LOAD_ADD_I32 : Atomic2Ops32<atomic_load_add_32, "load_add_32">;
869 defm ATOMIC_LOAD_SUB_I8 : Atomic2Ops32<atomic_load_sub_8, "load_sub_8">;
870 defm ATOMIC_LOAD_SUB_I16 : Atomic2Ops32<atomic_load_sub_16, "load_sub_16">;
871 defm ATOMIC_LOAD_SUB_I32 : Atomic2Ops32<atomic_load_sub_32, "load_sub_32">;
872 defm ATOMIC_LOAD_AND_I8 : Atomic2Ops32<atomic_load_and_8, "load_and_8">;
873 defm ATOMIC_LOAD_AND_I16 : Atomic2Ops32<atomic_load_and_16, "load_and_16">;
874 defm ATOMIC_LOAD_AND_I32 : Atomic2Ops32<atomic_load_and_32, "load_and_32">;
875 defm ATOMIC_LOAD_OR_I8 : Atomic2Ops32<atomic_load_or_8, "load_or_8">;
876 defm ATOMIC_LOAD_OR_I16 : Atomic2Ops32<atomic_load_or_16, "load_or_16">;
877 defm ATOMIC_LOAD_OR_I32 : Atomic2Ops32<atomic_load_or_32, "load_or_32">;
878 defm ATOMIC_LOAD_XOR_I8 : Atomic2Ops32<atomic_load_xor_8, "load_xor_8">;
879 defm ATOMIC_LOAD_XOR_I16 : Atomic2Ops32<atomic_load_xor_16, "load_xor_16">;
880 defm ATOMIC_LOAD_XOR_I32 : Atomic2Ops32<atomic_load_xor_32, "load_xor_32">;
881 defm ATOMIC_LOAD_NAND_I8 : Atomic2Ops32<atomic_load_nand_8, "load_nand_8">;
882 defm ATOMIC_LOAD_NAND_I16 : Atomic2Ops32<atomic_load_nand_16, "load_nand_16">;
883 defm ATOMIC_LOAD_NAND_I32 : Atomic2Ops32<atomic_load_nand_32, "load_nand_32">;
885 defm ATOMIC_SWAP_I8 : Atomic2Ops32<atomic_swap_8, "swap_8">;
886 defm ATOMIC_SWAP_I16 : Atomic2Ops32<atomic_swap_16, "swap_16">;
887 defm ATOMIC_SWAP_I32 : Atomic2Ops32<atomic_swap_32, "swap_32">;
889 defm ATOMIC_CMP_SWAP_I8 : AtomicCmpSwap32<atomic_cmp_swap_8, "8">;
890 defm ATOMIC_CMP_SWAP_I16 : AtomicCmpSwap32<atomic_cmp_swap_16, "16">;
891 defm ATOMIC_CMP_SWAP_I32 : AtomicCmpSwap32<atomic_cmp_swap_32, "32">;
894 //===----------------------------------------------------------------------===//
895 // Instruction definition
896 //===----------------------------------------------------------------------===//
898 class LoadImm32< string instr_asm, Operand Od, RegisterClass RC> :
899 MipsAsmPseudoInst<(outs RC:$rt), (ins Od:$imm32),
900 !strconcat(instr_asm, "\t$rt, $imm32")> ;
901 def LoadImm32Reg : LoadImm32<"li", shamt,CPURegs>;
903 class LoadAddress<string instr_asm, Operand MemOpnd, RegisterClass RC> :
904 MipsAsmPseudoInst<(outs RC:$rt), (ins MemOpnd:$addr),
905 !strconcat(instr_asm, "\t$rt, $addr")> ;
906 def LoadAddr32Reg : LoadAddress<"la", mem, CPURegs>;
908 class LoadAddressImm<string instr_asm, Operand Od, RegisterClass RC> :
909 MipsAsmPseudoInst<(outs RC:$rt), (ins Od:$imm32),
910 !strconcat(instr_asm, "\t$rt, $imm32")> ;
911 def LoadAddr32Imm : LoadAddressImm<"la", shamt,CPURegs>;
913 //===----------------------------------------------------------------------===//
914 // MipsI Instructions
915 //===----------------------------------------------------------------------===//
917 /// Arithmetic Instructions (ALU Immediate)
918 def ADDiu : ArithLogicI<0x09, "addiu", add, simm16, immSExt16, CPURegs>;
919 def ADDi : ArithOverflowI<0x08, "addi", add, simm16, immSExt16, CPURegs>;
920 def SLTi : SetCC_I<0x0a, "slti", setlt, simm16, immSExt16, CPURegs>;
921 def SLTiu : SetCC_I<0x0b, "sltiu", setult, simm16, immSExt16, CPURegs>;
922 def ANDi : ArithLogicI<0x0c, "andi", and, uimm16, immZExt16, CPURegs>;
923 def ORi : ArithLogicI<0x0d, "ori", or, uimm16, immZExt16, CPURegs>;
924 def XORi : ArithLogicI<0x0e, "xori", xor, uimm16, immZExt16, CPURegs>;
925 def LUi : LoadUpper<0x0f, "lui", CPURegs, uimm16>;
927 /// Arithmetic Instructions (3-Operand, R-Type)
928 def ADDu : ArithLogicR<0x00, 0x21, "addu", add, IIAlu, CPURegs, 1>;
929 def SUBu : ArithLogicR<0x00, 0x23, "subu", sub, IIAlu, CPURegs>;
930 def ADD : ArithOverflowR<0x00, 0x20, "add", IIAlu, CPURegs, 1>;
931 def SUB : ArithOverflowR<0x00, 0x22, "sub", IIAlu, CPURegs>;
932 def SLT : SetCC_R<0x00, 0x2a, "slt", setlt, CPURegs>;
933 def SLTu : SetCC_R<0x00, 0x2b, "sltu", setult, CPURegs>;
934 def AND : ArithLogicR<0x00, 0x24, "and", and, IIAlu, CPURegs, 1>;
935 def OR : ArithLogicR<0x00, 0x25, "or", or, IIAlu, CPURegs, 1>;
936 def XOR : ArithLogicR<0x00, 0x26, "xor", xor, IIAlu, CPURegs, 1>;
937 def NOR : LogicNOR<0x00, 0x27, "nor", CPURegs>;
939 /// Shift Instructions
940 def SLL : shift_rotate_imm32<0x00, 0x00, "sll", shl>;
941 def SRL : shift_rotate_imm32<0x02, 0x00, "srl", srl>;
942 def SRA : shift_rotate_imm32<0x03, 0x00, "sra", sra>;
943 def SLLV : shift_rotate_reg<0x04, 0x00, "sllv", shl, CPURegs>;
944 def SRLV : shift_rotate_reg<0x06, 0x00, "srlv", srl, CPURegs>;
945 def SRAV : shift_rotate_reg<0x07, 0x00, "srav", sra, CPURegs>;
947 // Rotate Instructions
948 let Predicates = [HasMips32r2, HasStandardEncoding] in {
949 def ROTR : shift_rotate_imm32<0x02, 0x01, "rotr", rotr>;
950 def ROTRV : shift_rotate_reg<0x06, 0x01, "rotrv", rotr, CPURegs>;
953 /// Load and Store Instructions
955 defm LB : LoadM32<0x20, "lb", sextloadi8>;
956 defm LBu : LoadM32<0x24, "lbu", zextloadi8>;
957 defm LH : LoadM32<0x21, "lh", sextloadi16>;
958 defm LHu : LoadM32<0x25, "lhu", zextloadi16>;
959 defm LW : LoadM32<0x23, "lw", load>;
960 defm SB : StoreM32<0x28, "sb", truncstorei8>;
961 defm SH : StoreM32<0x29, "sh", truncstorei16>;
962 defm SW : StoreM32<0x2b, "sw", store>;
964 /// load/store left/right
965 defm LWL : LoadLeftRightM32<0x22, "lwl", MipsLWL>;
966 defm LWR : LoadLeftRightM32<0x26, "lwr", MipsLWR>;
967 defm SWL : StoreLeftRightM32<0x2a, "swl", MipsSWL>;
968 defm SWR : StoreLeftRightM32<0x2e, "swr", MipsSWR>;
970 let hasSideEffects = 1 in
971 def SYNC : InstSE<(outs), (ins i32imm:$stype), "sync $stype",
972 [(MipsSync imm:$stype)], NoItinerary, FrmOther>
977 let Inst{10-6} = stype;
981 /// Load-linked, Store-conditional
982 def LL : LLBase<0x30, "ll", CPURegs, mem>,
983 Requires<[NotN64, HasStandardEncoding]>;
984 def LL_P8 : LLBase<0x30, "ll", CPURegs, mem64>,
985 Requires<[IsN64, HasStandardEncoding]> {
986 let DecoderNamespace = "Mips64";
989 def SC : SCBase<0x38, "sc", CPURegs, mem>,
990 Requires<[NotN64, HasStandardEncoding]>;
991 def SC_P8 : SCBase<0x38, "sc", CPURegs, mem64>,
992 Requires<[IsN64, HasStandardEncoding]> {
993 let DecoderNamespace = "Mips64";
996 /// Jump and Branch Instructions
997 def J : JumpFJ<0x02, "j", br>,
998 Requires<[RelocStatic, HasStandardEncoding]>, IsBranch;
999 def JR : IndirectBranch<CPURegs>;
1000 def B : UncondBranch<0x04, "b">;
1001 def BEQ : CBranch<0x04, "beq", seteq, CPURegs>;
1002 def BNE : CBranch<0x05, "bne", setne, CPURegs>;
1003 def BGEZ : CBranchZero<0x01, 1, "bgez", setge, CPURegs>;
1004 def BGTZ : CBranchZero<0x07, 0, "bgtz", setgt, CPURegs>;
1005 def BLEZ : CBranchZero<0x06, 0, "blez", setle, CPURegs>;
1006 def BLTZ : CBranchZero<0x01, 0, "bltz", setlt, CPURegs>;
1008 let rt = 0, rs = 0, isBranch = 1, isTerminator = 1, isBarrier = 1,
1009 hasDelaySlot = 1, Defs = [RA] in
1010 def BAL_BR: FI<0x1, (outs), (ins brtarget:$imm16), "bal\t$imm16", [], IIBranch>;
1012 def JAL : JumpLink<0x03, "jal">;
1013 def JALR : JumpLinkReg<0x00, 0x09, "jalr", CPURegs>;
1014 def BGEZAL : BranchLink<"bgezal", 0x11, CPURegs>;
1015 def BLTZAL : BranchLink<"bltzal", 0x10, CPURegs>;
1017 def RET : RetBase<CPURegs>;
1019 /// Multiply and Divide Instructions.
1020 def MULT : Mult32<0x18, "mult", IIImul>;
1021 def MULTu : Mult32<0x19, "multu", IIImul>;
1022 def SDIV : Div32<MipsDivRem, 0x1a, "div", IIIdiv>;
1023 def UDIV : Div32<MipsDivRemU, 0x1b, "divu", IIIdiv>;
1025 def MTHI : MoveToLOHI<0x11, "mthi", CPURegs, [HI]>;
1026 def MTLO : MoveToLOHI<0x13, "mtlo", CPURegs, [LO]>;
1027 def MFHI : MoveFromLOHI<0x10, "mfhi", CPURegs, [HI]>;
1028 def MFLO : MoveFromLOHI<0x12, "mflo", CPURegs, [LO]>;
1030 /// Sign Ext In Register Instructions.
1031 def SEB : SignExtInReg<0x10, "seb", i8, CPURegs>;
1032 def SEH : SignExtInReg<0x18, "seh", i16, CPURegs>;
1035 def CLZ : CountLeading0<0x20, "clz", CPURegs>;
1036 def CLO : CountLeading1<0x21, "clo", CPURegs>;
1038 /// Word Swap Bytes Within Halfwords
1039 def WSBH : SubwordSwap<0x20, 0x2, "wsbh", CPURegs>;
1043 def NOP : FJ<0, (outs), (ins), "nop", [], IIAlu>;
1045 // FrameIndexes are legalized when they are operands from load/store
1046 // instructions. The same not happens for stack address copies, so an
1047 // add op with mem ComplexPattern is used and the stack address copy
1048 // can be matched. It's similar to Sparc LEA_ADDRi
1049 def LEA_ADDiu : EffectiveAddress<0x09,"addiu\t$rt, $addr", CPURegs, mem_ea>;
1051 // DynAlloc node points to dynamically allocated stack space.
1052 // $sp is added to the list of implicitly used registers to prevent dead code
1053 // elimination from removing instructions that modify $sp.
1055 def DynAlloc : EffectiveAddress<0x09,"addiu\t$rt, $addr", CPURegs, mem_ea>;
1058 def MADD : MArithR<0, "madd", MipsMAdd, 1>;
1059 def MADDU : MArithR<1, "maddu", MipsMAddu, 1>;
1060 def MSUB : MArithR<4, "msub", MipsMSub>;
1061 def MSUBU : MArithR<5, "msubu", MipsMSubu>;
1063 // MUL is a assembly macro in the current used ISAs. In recent ISA's
1064 // it is a real instruction.
1065 def MUL : ArithLogicR<0x1c, 0x02, "mul", mul, IIImul, CPURegs, 1>,
1066 Requires<[HasMips32, HasStandardEncoding]>;
1068 def RDHWR : ReadHardware<CPURegs, HWRegs>;
1070 def EXT : ExtBase<0, "ext", CPURegs>;
1071 def INS : InsBase<4, "ins", CPURegs>;
1073 //===----------------------------------------------------------------------===//
1074 // Instruction aliases
1075 //===----------------------------------------------------------------------===//
1076 def : InstAlias<"move $dst,$src", (ADD CPURegs:$dst,CPURegs:$src,ZERO)>;
1077 def : InstAlias<"bal $offset", (BGEZAL RA,brtarget:$offset)>;
1078 def : InstAlias<"addu $rs,$rt,$imm",
1079 (ADDiu CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1080 def : InstAlias<"add $rs,$rt,$imm",
1081 (ADDi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1082 def : InstAlias<"and $rs,$rt,$imm",
1083 (ANDi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1084 def : InstAlias<"j $rs", (JR CPURegs:$rs)>;
1085 def : InstAlias<"not $rt,$rs", (NOR CPURegs:$rt,CPURegs:$rs,ZERO)>;
1086 def : InstAlias<"neg $rt,$rs", (SUB CPURegs:$rt,ZERO,CPURegs:$rs)>;
1087 def : InstAlias<"negu $rt,$rs", (SUBu CPURegs:$rt,ZERO,CPURegs:$rs)>;
1088 def : InstAlias<"slt $rs,$rt,$imm",
1089 (SLTi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1090 def : InstAlias<"xor $rs,$rt,$imm",
1091 (XORi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1093 //===----------------------------------------------------------------------===//
1094 // Arbitrary patterns that map to one or more instructions
1095 //===----------------------------------------------------------------------===//
1098 def : MipsPat<(i32 immSExt16:$in),
1099 (ADDiu ZERO, imm:$in)>;
1100 def : MipsPat<(i32 immZExt16:$in),
1101 (ORi ZERO, imm:$in)>;
1102 def : MipsPat<(i32 immLow16Zero:$in),
1103 (LUi (HI16 imm:$in))>;
1105 // Arbitrary immediates
1106 def : MipsPat<(i32 imm:$imm),
1107 (ORi (LUi (HI16 imm:$imm)), (LO16 imm:$imm))>;
1109 // Carry MipsPatterns
1110 def : MipsPat<(subc CPURegs:$lhs, CPURegs:$rhs),
1111 (SUBu CPURegs:$lhs, CPURegs:$rhs)>;
1112 def : MipsPat<(addc CPURegs:$lhs, CPURegs:$rhs),
1113 (ADDu CPURegs:$lhs, CPURegs:$rhs)>;
1114 def : MipsPat<(addc CPURegs:$src, immSExt16:$imm),
1115 (ADDiu CPURegs:$src, imm:$imm)>;
1118 def : MipsPat<(MipsJmpLink (i32 tglobaladdr:$dst)),
1119 (JAL tglobaladdr:$dst)>;
1120 def : MipsPat<(MipsJmpLink (i32 texternalsym:$dst)),
1121 (JAL texternalsym:$dst)>;
1122 //def : MipsPat<(MipsJmpLink CPURegs:$dst),
1123 // (JALR CPURegs:$dst)>;
1126 def : MipsPat<(MipsHi tglobaladdr:$in), (LUi tglobaladdr:$in)>;
1127 def : MipsPat<(MipsHi tblockaddress:$in), (LUi tblockaddress:$in)>;
1128 def : MipsPat<(MipsHi tjumptable:$in), (LUi tjumptable:$in)>;
1129 def : MipsPat<(MipsHi tconstpool:$in), (LUi tconstpool:$in)>;
1130 def : MipsPat<(MipsHi tglobaltlsaddr:$in), (LUi tglobaltlsaddr:$in)>;
1132 def : MipsPat<(MipsLo tglobaladdr:$in), (ADDiu ZERO, tglobaladdr:$in)>;
1133 def : MipsPat<(MipsLo tblockaddress:$in), (ADDiu ZERO, tblockaddress:$in)>;
1134 def : MipsPat<(MipsLo tjumptable:$in), (ADDiu ZERO, tjumptable:$in)>;
1135 def : MipsPat<(MipsLo tconstpool:$in), (ADDiu ZERO, tconstpool:$in)>;
1136 def : MipsPat<(MipsLo tglobaltlsaddr:$in), (ADDiu ZERO, tglobaltlsaddr:$in)>;
1138 def : MipsPat<(add CPURegs:$hi, (MipsLo tglobaladdr:$lo)),
1139 (ADDiu CPURegs:$hi, tglobaladdr:$lo)>;
1140 def : MipsPat<(add CPURegs:$hi, (MipsLo tblockaddress:$lo)),
1141 (ADDiu CPURegs:$hi, tblockaddress:$lo)>;
1142 def : MipsPat<(add CPURegs:$hi, (MipsLo tjumptable:$lo)),
1143 (ADDiu CPURegs:$hi, tjumptable:$lo)>;
1144 def : MipsPat<(add CPURegs:$hi, (MipsLo tconstpool:$lo)),
1145 (ADDiu CPURegs:$hi, tconstpool:$lo)>;
1146 def : MipsPat<(add CPURegs:$hi, (MipsLo tglobaltlsaddr:$lo)),
1147 (ADDiu CPURegs:$hi, tglobaltlsaddr:$lo)>;
1150 def : MipsPat<(add CPURegs:$gp, (MipsGPRel tglobaladdr:$in)),
1151 (ADDiu CPURegs:$gp, tglobaladdr:$in)>;
1152 def : MipsPat<(add CPURegs:$gp, (MipsGPRel tconstpool:$in)),
1153 (ADDiu CPURegs:$gp, tconstpool:$in)>;
1156 class WrapperPat<SDNode node, Instruction ADDiuOp, RegisterClass RC>:
1157 MipsPat<(MipsWrapper RC:$gp, node:$in),
1158 (ADDiuOp RC:$gp, node:$in)>;
1160 def : WrapperPat<tglobaladdr, ADDiu, CPURegs>;
1161 def : WrapperPat<tconstpool, ADDiu, CPURegs>;
1162 def : WrapperPat<texternalsym, ADDiu, CPURegs>;
1163 def : WrapperPat<tblockaddress, ADDiu, CPURegs>;
1164 def : WrapperPat<tjumptable, ADDiu, CPURegs>;
1165 def : WrapperPat<tglobaltlsaddr, ADDiu, CPURegs>;
1167 // Mips does not have "not", so we expand our way
1168 def : MipsPat<(not CPURegs:$in),
1169 (NOR CPURegs:$in, ZERO)>;
1172 let Predicates = [NotN64, HasStandardEncoding] in {
1173 def : MipsPat<(i32 (extloadi1 addr:$src)), (LBu addr:$src)>;
1174 def : MipsPat<(i32 (extloadi8 addr:$src)), (LBu addr:$src)>;
1175 def : MipsPat<(i32 (extloadi16 addr:$src)), (LHu addr:$src)>;
1177 let Predicates = [IsN64, HasStandardEncoding] in {
1178 def : MipsPat<(i32 (extloadi1 addr:$src)), (LBu_P8 addr:$src)>;
1179 def : MipsPat<(i32 (extloadi8 addr:$src)), (LBu_P8 addr:$src)>;
1180 def : MipsPat<(i32 (extloadi16 addr:$src)), (LHu_P8 addr:$src)>;
1184 let Predicates = [NotN64, HasStandardEncoding] in {
1185 def : MipsPat<(store (i32 0), addr:$dst), (SW ZERO, addr:$dst)>;
1187 let Predicates = [IsN64, HasStandardEncoding] in {
1188 def : MipsPat<(store (i32 0), addr:$dst), (SW_P8 ZERO, addr:$dst)>;
1192 multiclass BrcondPats<RegisterClass RC, Instruction BEQOp, Instruction BNEOp,
1193 Instruction SLTOp, Instruction SLTuOp, Instruction SLTiOp,
1194 Instruction SLTiuOp, Register ZEROReg> {
1195 def : MipsPat<(brcond (i32 (setne RC:$lhs, 0)), bb:$dst),
1196 (BNEOp RC:$lhs, ZEROReg, bb:$dst)>;
1197 def : MipsPat<(brcond (i32 (seteq RC:$lhs, 0)), bb:$dst),
1198 (BEQOp RC:$lhs, ZEROReg, bb:$dst)>;
1200 def : MipsPat<(brcond (i32 (setge RC:$lhs, RC:$rhs)), bb:$dst),
1201 (BEQ (SLTOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>;
1202 def : MipsPat<(brcond (i32 (setuge RC:$lhs, RC:$rhs)), bb:$dst),
1203 (BEQ (SLTuOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>;
1204 def : MipsPat<(brcond (i32 (setge RC:$lhs, immSExt16:$rhs)), bb:$dst),
1205 (BEQ (SLTiOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
1206 def : MipsPat<(brcond (i32 (setuge RC:$lhs, immSExt16:$rhs)), bb:$dst),
1207 (BEQ (SLTiuOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
1209 def : MipsPat<(brcond (i32 (setle RC:$lhs, RC:$rhs)), bb:$dst),
1210 (BEQ (SLTOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>;
1211 def : MipsPat<(brcond (i32 (setule RC:$lhs, RC:$rhs)), bb:$dst),
1212 (BEQ (SLTuOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>;
1214 def : MipsPat<(brcond RC:$cond, bb:$dst),
1215 (BNEOp RC:$cond, ZEROReg, bb:$dst)>;
1218 defm : BrcondPats<CPURegs, BEQ, BNE, SLT, SLTu, SLTi, SLTiu, ZERO>;
1221 multiclass SeteqPats<RegisterClass RC, Instruction SLTiuOp, Instruction XOROp,
1222 Instruction SLTuOp, Register ZEROReg> {
1223 def : MipsPat<(seteq RC:$lhs, RC:$rhs),
1224 (SLTiuOp (XOROp RC:$lhs, RC:$rhs), 1)>;
1225 def : MipsPat<(setne RC:$lhs, RC:$rhs),
1226 (SLTuOp ZEROReg, (XOROp RC:$lhs, RC:$rhs))>;
1229 multiclass SetlePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1230 def : MipsPat<(setle RC:$lhs, RC:$rhs),
1231 (XORi (SLTOp RC:$rhs, RC:$lhs), 1)>;
1232 def : MipsPat<(setule RC:$lhs, RC:$rhs),
1233 (XORi (SLTuOp RC:$rhs, RC:$lhs), 1)>;
1236 multiclass SetgtPats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1237 def : MipsPat<(setgt RC:$lhs, RC:$rhs),
1238 (SLTOp RC:$rhs, RC:$lhs)>;
1239 def : MipsPat<(setugt RC:$lhs, RC:$rhs),
1240 (SLTuOp RC:$rhs, RC:$lhs)>;
1243 multiclass SetgePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1244 def : MipsPat<(setge RC:$lhs, RC:$rhs),
1245 (XORi (SLTOp RC:$lhs, RC:$rhs), 1)>;
1246 def : MipsPat<(setuge RC:$lhs, RC:$rhs),
1247 (XORi (SLTuOp RC:$lhs, RC:$rhs), 1)>;
1250 multiclass SetgeImmPats<RegisterClass RC, Instruction SLTiOp,
1251 Instruction SLTiuOp> {
1252 def : MipsPat<(setge RC:$lhs, immSExt16:$rhs),
1253 (XORi (SLTiOp RC:$lhs, immSExt16:$rhs), 1)>;
1254 def : MipsPat<(setuge RC:$lhs, immSExt16:$rhs),
1255 (XORi (SLTiuOp RC:$lhs, immSExt16:$rhs), 1)>;
1258 defm : SeteqPats<CPURegs, SLTiu, XOR, SLTu, ZERO>;
1259 defm : SetlePats<CPURegs, SLT, SLTu>;
1260 defm : SetgtPats<CPURegs, SLT, SLTu>;
1261 defm : SetgePats<CPURegs, SLT, SLTu>;
1262 defm : SetgeImmPats<CPURegs, SLTi, SLTiu>;
1264 // select MipsDynAlloc
1265 def : MipsPat<(MipsDynAlloc addr:$f), (DynAlloc addr:$f)>;
1268 def : MipsPat<(bswap CPURegs:$rt), (ROTR (WSBH CPURegs:$rt), 16)>;
1270 //===----------------------------------------------------------------------===//
1271 // Floating Point Support
1272 //===----------------------------------------------------------------------===//
1274 include "MipsInstrFPU.td"
1275 include "Mips64InstrInfo.td"
1276 include "MipsCondMov.td"
1281 include "Mips16InstrFormats.td"
1282 include "Mips16InstrInfo.td"
1285 include "MipsDSPInstrFormats.td"
1286 include "MipsDSPInstrInfo.td"