1 //===- MipsInstrInfo.td - Target Description for Mips Target -*- tablegen -*-=//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the Mips implementation of the TargetInstrInfo class.
12 //===----------------------------------------------------------------------===//
15 //===----------------------------------------------------------------------===//
16 // Mips profiles and nodes
17 //===----------------------------------------------------------------------===//
19 def SDT_MipsJmpLink : SDTypeProfile<0, 1, [SDTCisVT<0, iPTR>]>;
20 def SDT_MipsCMov : SDTypeProfile<1, 4, [SDTCisSameAs<0, 1>,
24 def SDT_MipsCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
25 def SDT_MipsCallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>, SDTCisVT<1, i32>]>;
26 def SDT_MipsMAddMSub : SDTypeProfile<0, 4,
27 [SDTCisVT<0, i32>, SDTCisSameAs<0, 1>,
30 def SDT_MipsDivRem : SDTypeProfile<0, 2,
34 def SDT_MipsThreadPointer : SDTypeProfile<1, 0, [SDTCisPtrTy<0>]>;
36 def SDT_Sync : SDTypeProfile<0, 1, [SDTCisVT<0, i32>]>;
38 def SDT_Ext : SDTypeProfile<1, 3, [SDTCisInt<0>, SDTCisSameAs<0, 1>,
39 SDTCisVT<2, i32>, SDTCisSameAs<2, 3>]>;
40 def SDT_Ins : SDTypeProfile<1, 4, [SDTCisInt<0>, SDTCisSameAs<0, 1>,
41 SDTCisVT<2, i32>, SDTCisSameAs<2, 3>,
44 def SDTMipsLoadLR : SDTypeProfile<1, 2,
45 [SDTCisInt<0>, SDTCisPtrTy<1>,
49 def MipsJmpLink : SDNode<"MipsISD::JmpLink",SDT_MipsJmpLink,
50 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
54 def MipsTailCall : SDNode<"MipsISD::TailCall", SDT_MipsJmpLink,
55 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
57 // Hi and Lo nodes are used to handle global addresses. Used on
58 // MipsISelLowering to lower stuff like GlobalAddress, ExternalSymbol
59 // static model. (nothing to do with Mips Registers Hi and Lo)
60 def MipsHi : SDNode<"MipsISD::Hi", SDTIntUnaryOp>;
61 def MipsLo : SDNode<"MipsISD::Lo", SDTIntUnaryOp>;
62 def MipsGPRel : SDNode<"MipsISD::GPRel", SDTIntUnaryOp>;
64 // TlsGd node is used to handle General Dynamic TLS
65 def MipsTlsGd : SDNode<"MipsISD::TlsGd", SDTIntUnaryOp>;
67 // TprelHi and TprelLo nodes are used to handle Local Exec TLS
68 def MipsTprelHi : SDNode<"MipsISD::TprelHi", SDTIntUnaryOp>;
69 def MipsTprelLo : SDNode<"MipsISD::TprelLo", SDTIntUnaryOp>;
72 def MipsThreadPointer: SDNode<"MipsISD::ThreadPointer", SDT_MipsThreadPointer>;
75 def MipsRet : SDNode<"MipsISD::Ret", SDTNone, [SDNPHasChain, SDNPOptInGlue]>;
77 // These are target-independent nodes, but have target-specific formats.
78 def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_MipsCallSeqStart,
79 [SDNPHasChain, SDNPSideEffect, SDNPOutGlue]>;
80 def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_MipsCallSeqEnd,
81 [SDNPHasChain, SDNPSideEffect,
82 SDNPOptInGlue, SDNPOutGlue]>;
85 def MipsMAdd : SDNode<"MipsISD::MAdd", SDT_MipsMAddMSub,
86 [SDNPOptInGlue, SDNPOutGlue]>;
87 def MipsMAddu : SDNode<"MipsISD::MAddu", SDT_MipsMAddMSub,
88 [SDNPOptInGlue, SDNPOutGlue]>;
89 def MipsMSub : SDNode<"MipsISD::MSub", SDT_MipsMAddMSub,
90 [SDNPOptInGlue, SDNPOutGlue]>;
91 def MipsMSubu : SDNode<"MipsISD::MSubu", SDT_MipsMAddMSub,
92 [SDNPOptInGlue, SDNPOutGlue]>;
95 def MipsDivRem : SDNode<"MipsISD::DivRem", SDT_MipsDivRem,
97 def MipsDivRemU : SDNode<"MipsISD::DivRemU", SDT_MipsDivRem,
100 // Target constant nodes that are not part of any isel patterns and remain
101 // unchanged can cause instructions with illegal operands to be emitted.
102 // Wrapper node patterns give the instruction selector a chance to replace
103 // target constant nodes that would otherwise remain unchanged with ADDiu
104 // nodes. Without these wrapper node patterns, the following conditional move
105 // instrucion is emitted when function cmov2 in test/CodeGen/Mips/cmov.ll is
107 // movn %got(d)($gp), %got(c)($gp), $4
108 // This instruction is illegal since movn can take only register operands.
110 def MipsWrapper : SDNode<"MipsISD::Wrapper", SDTIntBinOp>;
112 def MipsSync : SDNode<"MipsISD::Sync", SDT_Sync, [SDNPHasChain,SDNPSideEffect]>;
114 def MipsExt : SDNode<"MipsISD::Ext", SDT_Ext>;
115 def MipsIns : SDNode<"MipsISD::Ins", SDT_Ins>;
117 def MipsLWL : SDNode<"MipsISD::LWL", SDTMipsLoadLR,
118 [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
119 def MipsLWR : SDNode<"MipsISD::LWR", SDTMipsLoadLR,
120 [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
121 def MipsSWL : SDNode<"MipsISD::SWL", SDTStore,
122 [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
123 def MipsSWR : SDNode<"MipsISD::SWR", SDTStore,
124 [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
125 def MipsLDL : SDNode<"MipsISD::LDL", SDTMipsLoadLR,
126 [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
127 def MipsLDR : SDNode<"MipsISD::LDR", SDTMipsLoadLR,
128 [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
129 def MipsSDL : SDNode<"MipsISD::SDL", SDTStore,
130 [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
131 def MipsSDR : SDNode<"MipsISD::SDR", SDTStore,
132 [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
134 //===----------------------------------------------------------------------===//
135 // Mips Instruction Predicate Definitions.
136 //===----------------------------------------------------------------------===//
137 def HasSEInReg : Predicate<"Subtarget.hasSEInReg()">,
138 AssemblerPredicate<"FeatureSEInReg">;
139 def HasBitCount : Predicate<"Subtarget.hasBitCount()">,
140 AssemblerPredicate<"FeatureBitCount">;
141 def HasSwap : Predicate<"Subtarget.hasSwap()">,
142 AssemblerPredicate<"FeatureSwap">;
143 def HasCondMov : Predicate<"Subtarget.hasCondMov()">,
144 AssemblerPredicate<"FeatureCondMov">;
145 def HasFPIdx : Predicate<"Subtarget.hasFPIdx()">,
146 AssemblerPredicate<"FeatureFPIdx">;
147 def HasMips32 : Predicate<"Subtarget.hasMips32()">,
148 AssemblerPredicate<"FeatureMips32">;
149 def HasMips32r2 : Predicate<"Subtarget.hasMips32r2()">,
150 AssemblerPredicate<"FeatureMips32r2">;
151 def HasMips64 : Predicate<"Subtarget.hasMips64()">,
152 AssemblerPredicate<"FeatureMips64">;
153 def NotMips64 : Predicate<"!Subtarget.hasMips64()">,
154 AssemblerPredicate<"!FeatureMips64">;
155 def HasMips64r2 : Predicate<"Subtarget.hasMips64r2()">,
156 AssemblerPredicate<"FeatureMips64r2">;
157 def IsN64 : Predicate<"Subtarget.isABI_N64()">,
158 AssemblerPredicate<"FeatureN64">;
159 def NotN64 : Predicate<"!Subtarget.isABI_N64()">,
160 AssemblerPredicate<"!FeatureN64">;
161 def InMips16Mode : Predicate<"Subtarget.inMips16Mode()">,
162 AssemblerPredicate<"FeatureMips16">;
163 def RelocStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">,
164 AssemblerPredicate<"FeatureMips32">;
165 def RelocPIC : Predicate<"TM.getRelocationModel() == Reloc::PIC_">,
166 AssemblerPredicate<"FeatureMips32">;
167 def NoNaNsFPMath : Predicate<"TM.Options.NoNaNsFPMath">,
168 AssemblerPredicate<"FeatureMips32">;
169 def HasStdEnc : Predicate<"Subtarget.hasStandardEncoding()">,
170 AssemblerPredicate<"!FeatureMips16">;
172 class MipsPat<dag pattern, dag result> : Pat<pattern, result> {
173 let Predicates = [HasStdEnc];
177 bit isCommutable = 1;
194 bit isTerminator = 1;
197 bit hasExtraSrcRegAllocReq = 1;
198 bit isCodeGenOnly = 1;
201 class IsAsCheapAsAMove {
202 bit isAsCheapAsAMove = 1;
205 class NeverHasSideEffects {
206 bit neverHasSideEffects = 1;
209 //===----------------------------------------------------------------------===//
210 // Instruction format superclass
211 //===----------------------------------------------------------------------===//
213 include "MipsInstrFormats.td"
215 //===----------------------------------------------------------------------===//
216 // Mips Operand, Complex Patterns and Transformations Definitions.
217 //===----------------------------------------------------------------------===//
219 // Instruction operand types
220 def jmptarget : Operand<OtherVT> {
221 let EncoderMethod = "getJumpTargetOpValue";
223 def brtarget : Operand<OtherVT> {
224 let EncoderMethod = "getBranchTargetOpValue";
225 let OperandType = "OPERAND_PCREL";
226 let DecoderMethod = "DecodeBranchTarget";
228 def calltarget : Operand<iPTR> {
229 let EncoderMethod = "getJumpTargetOpValue";
231 def calltarget64: Operand<i64>;
232 def simm16 : Operand<i32> {
233 let DecoderMethod= "DecodeSimm16";
235 def simm16_64 : Operand<i64>;
236 def shamt : Operand<i32>;
239 def uimm16 : Operand<i32> {
240 let PrintMethod = "printUnsignedImm";
243 def MipsMemAsmOperand : AsmOperandClass {
245 let ParserMethod = "parseMemOperand";
249 def mem : Operand<i32> {
250 let PrintMethod = "printMemOperand";
251 let MIOperandInfo = (ops CPURegs, simm16);
252 let EncoderMethod = "getMemEncoding";
253 let ParserMatchClass = MipsMemAsmOperand;
256 def mem64 : Operand<i64> {
257 let PrintMethod = "printMemOperand";
258 let MIOperandInfo = (ops CPU64Regs, simm16_64);
259 let EncoderMethod = "getMemEncoding";
260 let ParserMatchClass = MipsMemAsmOperand;
263 def mem_ea : Operand<i32> {
264 let PrintMethod = "printMemOperandEA";
265 let MIOperandInfo = (ops CPURegs, simm16);
266 let EncoderMethod = "getMemEncoding";
269 def mem_ea_64 : Operand<i64> {
270 let PrintMethod = "printMemOperandEA";
271 let MIOperandInfo = (ops CPU64Regs, simm16_64);
272 let EncoderMethod = "getMemEncoding";
275 // size operand of ext instruction
276 def size_ext : Operand<i32> {
277 let EncoderMethod = "getSizeExtEncoding";
278 let DecoderMethod = "DecodeExtSize";
281 // size operand of ins instruction
282 def size_ins : Operand<i32> {
283 let EncoderMethod = "getSizeInsEncoding";
284 let DecoderMethod = "DecodeInsSize";
287 // Transformation Function - get the lower 16 bits.
288 def LO16 : SDNodeXForm<imm, [{
289 return getImm(N, N->getZExtValue() & 0xFFFF);
292 // Transformation Function - get the higher 16 bits.
293 def HI16 : SDNodeXForm<imm, [{
294 return getImm(N, (N->getZExtValue() >> 16) & 0xFFFF);
297 // Node immediate fits as 16-bit sign extended on target immediate.
299 def immSExt16 : PatLeaf<(imm), [{ return isInt<16>(N->getSExtValue()); }]>;
301 // Node immediate fits as 16-bit zero extended on target immediate.
302 // The LO16 param means that only the lower 16 bits of the node
303 // immediate are caught.
305 def immZExt16 : PatLeaf<(imm), [{
306 if (N->getValueType(0) == MVT::i32)
307 return (uint32_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
309 return (uint64_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
312 // Immediate can be loaded with LUi (32-bit int with lower 16-bit cleared).
313 def immLow16Zero : PatLeaf<(imm), [{
314 int64_t Val = N->getSExtValue();
315 return isInt<32>(Val) && !(Val & 0xffff);
318 // shamt field must fit in 5 bits.
319 def immZExt5 : ImmLeaf<i32, [{return Imm == (Imm & 0x1f);}]>;
321 // Mips Address Mode! SDNode frameindex could possibily be a match
322 // since load and store instructions from stack used it.
324 ComplexPattern<iPTR, 2, "SelectAddr", [frameindex], [SDNPWantParent]>;
326 //===----------------------------------------------------------------------===//
327 // Instructions specific format
328 //===----------------------------------------------------------------------===//
330 /// Move Control Registers From/To CPU Registers
331 def MFC0_3OP : MFC3OP<0x10, 0, (outs CPURegs:$rt),
332 (ins CPURegs:$rd, uimm16:$sel),"mfc0\t$rt, $rd, $sel">;
333 def : InstAlias<"mfc0 $rt, $rd", (MFC0_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
335 def MTC0_3OP : MFC3OP<0x10, 4, (outs CPURegs:$rd, uimm16:$sel),
336 (ins CPURegs:$rt),"mtc0\t$rt, $rd, $sel">;
337 def : InstAlias<"mtc0 $rt, $rd", (MTC0_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
339 def MFC2_3OP : MFC3OP<0x12, 0, (outs CPURegs:$rt),
340 (ins CPURegs:$rd, uimm16:$sel),"mfc2\t$rt, $rd, $sel">;
341 def : InstAlias<"mfc2 $rt, $rd", (MFC2_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
343 def MTC2_3OP : MFC3OP<0x12, 4, (outs CPURegs:$rd, uimm16:$sel),
344 (ins CPURegs:$rt),"mtc2\t$rt, $rd, $sel">;
345 def : InstAlias<"mtc2 $rt, $rd", (MTC2_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
347 // Arithmetic and logical instructions with 3 register operands.
348 class ArithLogicR<string opstr, InstrItinClass Itin, RegisterClass RC,
349 bit isComm = 0, SDPatternOperator OpNode = null_frag>:
350 InstSE<(outs RC:$rd), (ins RC:$rs, RC:$rt),
351 !strconcat(opstr, "\t$rd, $rs, $rt"),
352 [(set RC:$rd, (OpNode RC:$rs, RC:$rt))], Itin, FrmR> {
353 let isCommutable = isComm;
354 let isReMaterializable = 1;
357 // Arithmetic and logical instructions with 2 register operands.
358 class ArithLogicI<string opstr, Operand Od, PatLeaf imm_type,
359 RegisterClass RC, SDPatternOperator OpNode = null_frag> :
360 InstSE<(outs RC:$rt), (ins RC:$rs, Od:$imm16),
361 !strconcat(opstr, "\t$rt, $rs, $imm16"),
362 [(set RC:$rt, (OpNode RC:$rs, imm_type:$imm16))], IIAlu, FrmI> {
363 let isReMaterializable = 1;
366 // Arithmetic Multiply ADD/SUB
367 let rd = 0, shamt = 0, Defs = [HI, LO], Uses = [HI, LO] in
368 class MArithR<bits<6> func, string instr_asm, SDNode op, bit isComm = 0> :
369 FR<0x1c, func, (outs), (ins CPURegs:$rs, CPURegs:$rt),
370 !strconcat(instr_asm, "\t$rs, $rt"),
371 [(op CPURegs:$rs, CPURegs:$rt, LO, HI)], IIImul> {
374 let isCommutable = isComm;
378 class LogicNOR<bits<6> op, bits<6> func, string instr_asm, RegisterClass RC>:
379 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
380 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
381 [(set RC:$rd, (not (or RC:$rs, RC:$rt)))], IIAlu> {
383 let isCommutable = 1;
387 class shift_rotate_imm<string opstr, PatFrag PF, Operand ImmOpnd,
388 RegisterClass RC, SDPatternOperator OpNode> :
389 InstSE<(outs RC:$rd), (ins RC:$rt, ImmOpnd:$shamt),
390 !strconcat(opstr, "\t$rd, $rt, $shamt"),
391 [(set RC:$rd, (OpNode RC:$rt, PF:$shamt))], IIAlu, FrmR>;
393 // 32-bit shift instructions.
394 class shift_rotate_imm32<string opstr, SDPatternOperator OpNode = null_frag> :
395 shift_rotate_imm<opstr, immZExt5, shamt, CPURegs, OpNode>;
397 class shift_rotate_reg<bits<6> func, bits<5> isRotate, string instr_asm,
398 SDNode OpNode, RegisterClass RC>:
399 FR<0x00, func, (outs RC:$rd), (ins CPURegs:$rs, RC:$rt),
400 !strconcat(instr_asm, "\t$rd, $rt, $rs"),
401 [(set RC:$rd, (OpNode RC:$rt, CPURegs:$rs))], IIAlu> {
402 let shamt = isRotate;
405 // Load Upper Imediate
406 class LoadUpper<bits<6> op, string instr_asm, RegisterClass RC, Operand Imm>:
407 FI<op, (outs RC:$rt), (ins Imm:$imm16),
408 !strconcat(instr_asm, "\t$rt, $imm16"), [], IIAlu>, IsAsCheapAsAMove {
410 let neverHasSideEffects = 1;
411 let isReMaterializable = 1;
414 class FMem<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
415 InstrItinClass itin>: FFI<op, outs, ins, asmstr, pattern> {
417 let Inst{25-21} = addr{20-16};
418 let Inst{15-0} = addr{15-0};
419 let DecoderMethod = "DecodeMem";
423 let canFoldAsLoad = 1 in
424 class LoadM<bits<6> op, string instr_asm, PatFrag OpNode, RegisterClass RC,
425 Operand MemOpnd, bit Pseudo>:
426 FMem<op, (outs RC:$rt), (ins MemOpnd:$addr),
427 !strconcat(instr_asm, "\t$rt, $addr"),
428 [(set RC:$rt, (OpNode addr:$addr))], IILoad> {
429 let isPseudo = Pseudo;
432 class StoreM<bits<6> op, string instr_asm, PatFrag OpNode, RegisterClass RC,
433 Operand MemOpnd, bit Pseudo>:
434 FMem<op, (outs), (ins RC:$rt, MemOpnd:$addr),
435 !strconcat(instr_asm, "\t$rt, $addr"),
436 [(OpNode RC:$rt, addr:$addr)], IIStore> {
437 let isPseudo = Pseudo;
441 multiclass LoadM32<bits<6> op, string instr_asm, PatFrag OpNode,
443 def #NAME# : LoadM<op, instr_asm, OpNode, CPURegs, mem, Pseudo>,
444 Requires<[NotN64, HasStdEnc]>;
445 def _P8 : LoadM<op, instr_asm, OpNode, CPURegs, mem64, Pseudo>,
446 Requires<[IsN64, HasStdEnc]> {
447 let DecoderNamespace = "Mips64";
448 let isCodeGenOnly = 1;
453 multiclass LoadM64<bits<6> op, string instr_asm, PatFrag OpNode,
455 def #NAME# : LoadM<op, instr_asm, OpNode, CPU64Regs, mem, Pseudo>,
456 Requires<[NotN64, HasStdEnc]>;
457 def _P8 : LoadM<op, instr_asm, OpNode, CPU64Regs, mem64, Pseudo>,
458 Requires<[IsN64, HasStdEnc]> {
459 let DecoderNamespace = "Mips64";
460 let isCodeGenOnly = 1;
465 multiclass StoreM32<bits<6> op, string instr_asm, PatFrag OpNode,
467 def #NAME# : StoreM<op, instr_asm, OpNode, CPURegs, mem, Pseudo>,
468 Requires<[NotN64, HasStdEnc]>;
469 def _P8 : StoreM<op, instr_asm, OpNode, CPURegs, mem64, Pseudo>,
470 Requires<[IsN64, HasStdEnc]> {
471 let DecoderNamespace = "Mips64";
472 let isCodeGenOnly = 1;
477 multiclass StoreM64<bits<6> op, string instr_asm, PatFrag OpNode,
479 def #NAME# : StoreM<op, instr_asm, OpNode, CPU64Regs, mem, Pseudo>,
480 Requires<[NotN64, HasStdEnc]>;
481 def _P8 : StoreM<op, instr_asm, OpNode, CPU64Regs, mem64, Pseudo>,
482 Requires<[IsN64, HasStdEnc]> {
483 let DecoderNamespace = "Mips64";
484 let isCodeGenOnly = 1;
488 // Load/Store Left/Right
489 let canFoldAsLoad = 1 in
490 class LoadLeftRight<bits<6> op, string instr_asm, SDNode OpNode,
491 RegisterClass RC, Operand MemOpnd> :
492 FMem<op, (outs RC:$rt), (ins MemOpnd:$addr, RC:$src),
493 !strconcat(instr_asm, "\t$rt, $addr"),
494 [(set RC:$rt, (OpNode addr:$addr, RC:$src))], IILoad> {
495 string Constraints = "$src = $rt";
498 class StoreLeftRight<bits<6> op, string instr_asm, SDNode OpNode,
499 RegisterClass RC, Operand MemOpnd>:
500 FMem<op, (outs), (ins RC:$rt, MemOpnd:$addr),
501 !strconcat(instr_asm, "\t$rt, $addr"), [(OpNode RC:$rt, addr:$addr)],
504 // 32-bit load left/right.
505 multiclass LoadLeftRightM32<bits<6> op, string instr_asm, SDNode OpNode> {
506 def #NAME# : LoadLeftRight<op, instr_asm, OpNode, CPURegs, mem>,
507 Requires<[NotN64, HasStdEnc]>;
508 def _P8 : LoadLeftRight<op, instr_asm, OpNode, CPURegs, mem64>,
509 Requires<[IsN64, HasStdEnc]> {
510 let DecoderNamespace = "Mips64";
511 let isCodeGenOnly = 1;
515 // 64-bit load left/right.
516 multiclass LoadLeftRightM64<bits<6> op, string instr_asm, SDNode OpNode> {
517 def #NAME# : LoadLeftRight<op, instr_asm, OpNode, CPU64Regs, mem>,
518 Requires<[NotN64, HasStdEnc]>;
519 def _P8 : LoadLeftRight<op, instr_asm, OpNode, CPU64Regs, mem64>,
520 Requires<[IsN64, HasStdEnc]> {
521 let DecoderNamespace = "Mips64";
522 let isCodeGenOnly = 1;
526 // 32-bit store left/right.
527 multiclass StoreLeftRightM32<bits<6> op, string instr_asm, SDNode OpNode> {
528 def #NAME# : StoreLeftRight<op, instr_asm, OpNode, CPURegs, mem>,
529 Requires<[NotN64, HasStdEnc]>;
530 def _P8 : StoreLeftRight<op, instr_asm, OpNode, CPURegs, mem64>,
531 Requires<[IsN64, HasStdEnc]> {
532 let DecoderNamespace = "Mips64";
533 let isCodeGenOnly = 1;
537 // 64-bit store left/right.
538 multiclass StoreLeftRightM64<bits<6> op, string instr_asm, SDNode OpNode> {
539 def #NAME# : StoreLeftRight<op, instr_asm, OpNode, CPU64Regs, mem>,
540 Requires<[NotN64, HasStdEnc]>;
541 def _P8 : StoreLeftRight<op, instr_asm, OpNode, CPU64Regs, mem64>,
542 Requires<[IsN64, HasStdEnc]> {
543 let DecoderNamespace = "Mips64";
544 let isCodeGenOnly = 1;
548 // Conditional Branch
549 class CBranch<bits<6> op, string instr_asm, PatFrag cond_op, RegisterClass RC>:
550 BranchBase<op, (outs), (ins RC:$rs, RC:$rt, brtarget:$imm16),
551 !strconcat(instr_asm, "\t$rs, $rt, $imm16"),
552 [(brcond (i32 (cond_op RC:$rs, RC:$rt)), bb:$imm16)], IIBranch> {
554 let isTerminator = 1;
555 let hasDelaySlot = 1;
559 class CBranchZero<bits<6> op, bits<5> _rt, string instr_asm, PatFrag cond_op,
561 BranchBase<op, (outs), (ins RC:$rs, brtarget:$imm16),
562 !strconcat(instr_asm, "\t$rs, $imm16"),
563 [(brcond (i32 (cond_op RC:$rs, 0)), bb:$imm16)], IIBranch> {
566 let isTerminator = 1;
567 let hasDelaySlot = 1;
572 class SetCC_R<bits<6> op, bits<6> func, string instr_asm, PatFrag cond_op,
574 FR<op, func, (outs CPURegs:$rd), (ins RC:$rs, RC:$rt),
575 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
576 [(set CPURegs:$rd, (cond_op RC:$rs, RC:$rt))],
581 class SetCC_I<bits<6> op, string instr_asm, PatFrag cond_op, Operand Od,
582 PatLeaf imm_type, RegisterClass RC>:
583 FI<op, (outs CPURegs:$rt), (ins RC:$rs, Od:$imm16),
584 !strconcat(instr_asm, "\t$rt, $rs, $imm16"),
585 [(set CPURegs:$rt, (cond_op RC:$rs, imm_type:$imm16))],
589 class JumpFJ<bits<6> op, DAGOperand opnd, string instr_asm,
590 SDPatternOperator operator, SDPatternOperator targetoperator>:
591 FJ<op, (outs), (ins opnd:$target), !strconcat(instr_asm, "\t$target"),
592 [(operator targetoperator:$target)], IIBranch> {
595 let hasDelaySlot = 1;
596 let DecoderMethod = "DecodeJumpTarget";
600 // Unconditional branch
601 class UncondBranch<bits<6> op, string instr_asm>:
602 BranchBase<op, (outs), (ins brtarget:$imm16),
603 !strconcat(instr_asm, "\t$imm16"), [(br bb:$imm16)], IIBranch> {
607 let isTerminator = 1;
609 let hasDelaySlot = 1;
610 let Predicates = [RelocPIC, HasStdEnc];
614 // Base class for indirect branch and return instruction classes.
615 let isTerminator=1, isBarrier=1, hasDelaySlot = 1 in
616 class JumpFR<RegisterClass RC, SDPatternOperator operator = null_frag>:
617 FR<0, 0x8, (outs), (ins RC:$rs), "jr\t$rs", [(operator RC:$rs)], IIBranch> {
624 class IndirectBranch<RegisterClass RC>: JumpFR<RC, brind> {
626 let isIndirectBranch = 1;
629 // Return instruction
630 class RetBase<RegisterClass RC>: JumpFR<RC> {
632 let isCodeGenOnly = 1;
634 let hasExtraSrcRegAllocReq = 1;
637 // Jump and Link (Call)
638 let isCall=1, hasDelaySlot=1, Defs = [RA] in {
639 class JumpLink<bits<6> op, string instr_asm>:
640 FJ<op, (outs), (ins calltarget:$target),
641 !strconcat(instr_asm, "\t$target"), [(MipsJmpLink imm:$target)],
643 let DecoderMethod = "DecodeJumpTarget";
646 class JumpLinkReg<bits<6> op, bits<6> func, string instr_asm,
648 FR<op, func, (outs), (ins RC:$rs),
649 !strconcat(instr_asm, "\t$rs"), [(MipsJmpLink RC:$rs)], IIBranch> {
655 class BranchLink<string instr_asm, bits<5> _rt, RegisterClass RC>:
656 FI<0x1, (outs), (ins RC:$rs, brtarget:$imm16),
657 !strconcat(instr_asm, "\t$rs, $imm16"), [], IIBranch> {
663 class Mult<bits<6> func, string instr_asm, InstrItinClass itin,
664 RegisterClass RC, list<Register> DefRegs>:
665 FR<0x00, func, (outs), (ins RC:$rs, RC:$rt),
666 !strconcat(instr_asm, "\t$rs, $rt"), [], itin> {
669 let isCommutable = 1;
671 let neverHasSideEffects = 1;
674 class Mult32<bits<6> func, string instr_asm, InstrItinClass itin>:
675 Mult<func, instr_asm, itin, CPURegs, [HI, LO]>;
677 class Div<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin,
678 RegisterClass RC, list<Register> DefRegs>:
679 FR<0x00, func, (outs), (ins RC:$rs, RC:$rt),
680 !strconcat(instr_asm, "\t$$zero, $rs, $rt"),
681 [(op RC:$rs, RC:$rt)], itin> {
687 class Div32<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin>:
688 Div<op, func, instr_asm, itin, CPURegs, [HI, LO]>;
691 class MoveFromLOHI<bits<6> func, string instr_asm, RegisterClass RC,
692 list<Register> UseRegs>:
693 FR<0x00, func, (outs RC:$rd), (ins),
694 !strconcat(instr_asm, "\t$rd"), [], IIHiLo> {
699 let neverHasSideEffects = 1;
702 class MoveToLOHI<bits<6> func, string instr_asm, RegisterClass RC,
703 list<Register> DefRegs>:
704 FR<0x00, func, (outs), (ins RC:$rs),
705 !strconcat(instr_asm, "\t$rs"), [], IIHiLo> {
710 let neverHasSideEffects = 1;
713 class EffectiveAddress<bits<6> opc, string instr_asm, RegisterClass RC, Operand Mem> :
714 FMem<opc, (outs RC:$rt), (ins Mem:$addr),
715 instr_asm, [(set RC:$rt, addr:$addr)], IIAlu> {
716 let isCodeGenOnly = 1;
719 // Count Leading Ones/Zeros in Word
720 class CountLeading0<bits<6> func, string instr_asm, RegisterClass RC>:
721 FR<0x1c, func, (outs RC:$rd), (ins RC:$rs),
722 !strconcat(instr_asm, "\t$rd, $rs"),
723 [(set RC:$rd, (ctlz RC:$rs))], IIAlu>,
724 Requires<[HasBitCount, HasStdEnc]> {
729 class CountLeading1<bits<6> func, string instr_asm, RegisterClass RC>:
730 FR<0x1c, func, (outs RC:$rd), (ins RC:$rs),
731 !strconcat(instr_asm, "\t$rd, $rs"),
732 [(set RC:$rd, (ctlz (not RC:$rs)))], IIAlu>,
733 Requires<[HasBitCount, HasStdEnc]> {
738 // Sign Extend in Register.
739 class SignExtInReg<bits<5> sa, string instr_asm, ValueType vt,
741 FR<0x1f, 0x20, (outs RC:$rd), (ins RC:$rt),
742 !strconcat(instr_asm, "\t$rd, $rt"),
743 [(set RC:$rd, (sext_inreg RC:$rt, vt))], NoItinerary> {
746 let Predicates = [HasSEInReg, HasStdEnc];
750 class SubwordSwap<bits<6> func, bits<5> sa, string instr_asm, RegisterClass RC>:
751 FR<0x1f, func, (outs RC:$rd), (ins RC:$rt),
752 !strconcat(instr_asm, "\t$rd, $rt"), [], NoItinerary> {
755 let Predicates = [HasSwap, HasStdEnc];
756 let neverHasSideEffects = 1;
760 class ReadHardware<RegisterClass CPURegClass, RegisterClass HWRegClass>
761 : FR<0x1f, 0x3b, (outs CPURegClass:$rt), (ins HWRegClass:$rd),
762 "rdhwr\t$rt, $rd", [], IIAlu> {
768 class ExtBase<bits<6> _funct, string instr_asm, RegisterClass RC>:
769 FR<0x1f, _funct, (outs RC:$rt), (ins RC:$rs, uimm16:$pos, size_ext:$sz),
770 !strconcat(instr_asm, " $rt, $rs, $pos, $sz"),
771 [(set RC:$rt, (MipsExt RC:$rs, imm:$pos, imm:$sz))], NoItinerary> {
776 let Predicates = [HasMips32r2, HasStdEnc];
779 class InsBase<bits<6> _funct, string instr_asm, RegisterClass RC>:
780 FR<0x1f, _funct, (outs RC:$rt),
781 (ins RC:$rs, uimm16:$pos, size_ins:$sz, RC:$src),
782 !strconcat(instr_asm, " $rt, $rs, $pos, $sz"),
783 [(set RC:$rt, (MipsIns RC:$rs, imm:$pos, imm:$sz, RC:$src))],
789 let Predicates = [HasMips32r2, HasStdEnc];
790 let Constraints = "$src = $rt";
793 // Atomic instructions with 2 source operands (ATOMIC_SWAP & ATOMIC_LOAD_*).
794 class Atomic2Ops<PatFrag Op, string Opstr, RegisterClass DRC,
796 PseudoSE<(outs DRC:$dst), (ins PRC:$ptr, DRC:$incr),
797 !strconcat("atomic_", Opstr, "\t$dst, $ptr, $incr"),
798 [(set DRC:$dst, (Op PRC:$ptr, DRC:$incr))]>;
800 multiclass Atomic2Ops32<PatFrag Op, string Opstr> {
801 def #NAME# : Atomic2Ops<Op, Opstr, CPURegs, CPURegs>,
802 Requires<[NotN64, HasStdEnc]>;
803 def _P8 : Atomic2Ops<Op, Opstr, CPURegs, CPU64Regs>,
804 Requires<[IsN64, HasStdEnc]> {
805 let DecoderNamespace = "Mips64";
809 // Atomic Compare & Swap.
810 class AtomicCmpSwap<PatFrag Op, string Width, RegisterClass DRC,
812 PseudoSE<(outs DRC:$dst), (ins PRC:$ptr, DRC:$cmp, DRC:$swap),
813 !strconcat("atomic_cmp_swap_", Width, "\t$dst, $ptr, $cmp, $swap"),
814 [(set DRC:$dst, (Op PRC:$ptr, DRC:$cmp, DRC:$swap))]>;
816 multiclass AtomicCmpSwap32<PatFrag Op, string Width> {
817 def #NAME# : AtomicCmpSwap<Op, Width, CPURegs, CPURegs>,
818 Requires<[NotN64, HasStdEnc]>;
819 def _P8 : AtomicCmpSwap<Op, Width, CPURegs, CPU64Regs>,
820 Requires<[IsN64, HasStdEnc]> {
821 let DecoderNamespace = "Mips64";
825 class LLBase<bits<6> Opc, string opstring, RegisterClass RC, Operand Mem> :
826 FMem<Opc, (outs RC:$rt), (ins Mem:$addr),
827 !strconcat(opstring, "\t$rt, $addr"), [], IILoad> {
831 class SCBase<bits<6> Opc, string opstring, RegisterClass RC, Operand Mem> :
832 FMem<Opc, (outs RC:$dst), (ins RC:$rt, Mem:$addr),
833 !strconcat(opstring, "\t$rt, $addr"), [], IIStore> {
835 let Constraints = "$rt = $dst";
838 //===----------------------------------------------------------------------===//
839 // Pseudo instructions
840 //===----------------------------------------------------------------------===//
843 let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1, hasCtrlDep=1 in
844 def RetRA : PseudoSE<(outs), (ins), "", [(MipsRet)]>;
846 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
847 def ADJCALLSTACKDOWN : MipsPseudo<(outs), (ins i32imm:$amt),
848 "!ADJCALLSTACKDOWN $amt",
849 [(callseq_start timm:$amt)]>;
850 def ADJCALLSTACKUP : MipsPseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
851 "!ADJCALLSTACKUP $amt1",
852 [(callseq_end timm:$amt1, timm:$amt2)]>;
855 // When handling PIC code the assembler needs .cpload and .cprestore
856 // directives. If the real instructions corresponding these directives
857 // are used, we have the same behavior, but get also a bunch of warnings
858 // from the assembler.
859 let neverHasSideEffects = 1 in
860 def CPRESTORE : PseudoSE<(outs), (ins i32imm:$loc, CPURegs:$gp),
861 ".cprestore\t$loc", []>;
863 let usesCustomInserter = 1 in {
864 defm ATOMIC_LOAD_ADD_I8 : Atomic2Ops32<atomic_load_add_8, "load_add_8">;
865 defm ATOMIC_LOAD_ADD_I16 : Atomic2Ops32<atomic_load_add_16, "load_add_16">;
866 defm ATOMIC_LOAD_ADD_I32 : Atomic2Ops32<atomic_load_add_32, "load_add_32">;
867 defm ATOMIC_LOAD_SUB_I8 : Atomic2Ops32<atomic_load_sub_8, "load_sub_8">;
868 defm ATOMIC_LOAD_SUB_I16 : Atomic2Ops32<atomic_load_sub_16, "load_sub_16">;
869 defm ATOMIC_LOAD_SUB_I32 : Atomic2Ops32<atomic_load_sub_32, "load_sub_32">;
870 defm ATOMIC_LOAD_AND_I8 : Atomic2Ops32<atomic_load_and_8, "load_and_8">;
871 defm ATOMIC_LOAD_AND_I16 : Atomic2Ops32<atomic_load_and_16, "load_and_16">;
872 defm ATOMIC_LOAD_AND_I32 : Atomic2Ops32<atomic_load_and_32, "load_and_32">;
873 defm ATOMIC_LOAD_OR_I8 : Atomic2Ops32<atomic_load_or_8, "load_or_8">;
874 defm ATOMIC_LOAD_OR_I16 : Atomic2Ops32<atomic_load_or_16, "load_or_16">;
875 defm ATOMIC_LOAD_OR_I32 : Atomic2Ops32<atomic_load_or_32, "load_or_32">;
876 defm ATOMIC_LOAD_XOR_I8 : Atomic2Ops32<atomic_load_xor_8, "load_xor_8">;
877 defm ATOMIC_LOAD_XOR_I16 : Atomic2Ops32<atomic_load_xor_16, "load_xor_16">;
878 defm ATOMIC_LOAD_XOR_I32 : Atomic2Ops32<atomic_load_xor_32, "load_xor_32">;
879 defm ATOMIC_LOAD_NAND_I8 : Atomic2Ops32<atomic_load_nand_8, "load_nand_8">;
880 defm ATOMIC_LOAD_NAND_I16 : Atomic2Ops32<atomic_load_nand_16, "load_nand_16">;
881 defm ATOMIC_LOAD_NAND_I32 : Atomic2Ops32<atomic_load_nand_32, "load_nand_32">;
883 defm ATOMIC_SWAP_I8 : Atomic2Ops32<atomic_swap_8, "swap_8">;
884 defm ATOMIC_SWAP_I16 : Atomic2Ops32<atomic_swap_16, "swap_16">;
885 defm ATOMIC_SWAP_I32 : Atomic2Ops32<atomic_swap_32, "swap_32">;
887 defm ATOMIC_CMP_SWAP_I8 : AtomicCmpSwap32<atomic_cmp_swap_8, "8">;
888 defm ATOMIC_CMP_SWAP_I16 : AtomicCmpSwap32<atomic_cmp_swap_16, "16">;
889 defm ATOMIC_CMP_SWAP_I32 : AtomicCmpSwap32<atomic_cmp_swap_32, "32">;
892 //===----------------------------------------------------------------------===//
893 // Instruction definition
894 //===----------------------------------------------------------------------===//
896 class LoadImm32< string instr_asm, Operand Od, RegisterClass RC> :
897 MipsAsmPseudoInst<(outs RC:$rt), (ins Od:$imm32),
898 !strconcat(instr_asm, "\t$rt, $imm32")> ;
899 def LoadImm32Reg : LoadImm32<"li", shamt,CPURegs>;
901 class LoadAddress<string instr_asm, Operand MemOpnd, RegisterClass RC> :
902 MipsAsmPseudoInst<(outs RC:$rt), (ins MemOpnd:$addr),
903 !strconcat(instr_asm, "\t$rt, $addr")> ;
904 def LoadAddr32Reg : LoadAddress<"la", mem, CPURegs>;
906 class LoadAddressImm<string instr_asm, Operand Od, RegisterClass RC> :
907 MipsAsmPseudoInst<(outs RC:$rt), (ins Od:$imm32),
908 !strconcat(instr_asm, "\t$rt, $imm32")> ;
909 def LoadAddr32Imm : LoadAddressImm<"la", shamt,CPURegs>;
911 //===----------------------------------------------------------------------===//
912 // MipsI Instructions
913 //===----------------------------------------------------------------------===//
915 /// Arithmetic Instructions (ALU Immediate)
916 def ADDiu : ArithLogicI<"addiu", simm16, immSExt16, CPURegs, add>,
917 ADDI_FM<0x9>, IsAsCheapAsAMove;
918 def ADDi : ArithLogicI<"addi", simm16, immSExt16, CPURegs>, ADDI_FM<0x8>;
919 def SLTi : SetCC_I<0x0a, "slti", setlt, simm16, immSExt16, CPURegs>;
920 def SLTiu : SetCC_I<0x0b, "sltiu", setult, simm16, immSExt16, CPURegs>;
921 def ANDi : ArithLogicI<"andi", uimm16, immZExt16, CPURegs, and>, ADDI_FM<0xc>;
922 def ORi : ArithLogicI<"ori", uimm16, immZExt16, CPURegs, or>, ADDI_FM<0xd>;
923 def XORi : ArithLogicI<"xori", uimm16, immZExt16, CPURegs, xor>, ADDI_FM<0xe>;
924 def LUi : LoadUpper<0x0f, "lui", CPURegs, uimm16>;
926 /// Arithmetic Instructions (3-Operand, R-Type)
927 def ADDu : ArithLogicR<"addu", IIAlu, CPURegs, 1, add>, ADD_FM<0, 0x21>;
928 def SUBu : ArithLogicR<"subu", IIAlu, CPURegs, 0, sub>, ADD_FM<0, 0x23>;
929 def ADD : ArithLogicR<"add", IIAlu, CPURegs, 1>, ADD_FM<0, 0x20>;
930 def SUB : ArithLogicR<"sub", IIAlu, CPURegs, 0>, ADD_FM<0, 0x22>;
931 def SLT : SetCC_R<0x00, 0x2a, "slt", setlt, CPURegs>;
932 def SLTu : SetCC_R<0x00, 0x2b, "sltu", setult, CPURegs>;
933 def AND : ArithLogicR<"and", IIAlu, CPURegs, 1, and>, ADD_FM<0, 0x24>;
934 def OR : ArithLogicR<"or", IIAlu, CPURegs, 1, or>, ADD_FM<0, 0x25>;
935 def XOR : ArithLogicR<"xor", IIAlu, CPURegs, 1, xor>, ADD_FM<0, 0x26>;
936 def NOR : LogicNOR<0x00, 0x27, "nor", CPURegs>;
938 /// Shift Instructions
939 def SLL : shift_rotate_imm32<"sll", shl>, SRA_FM<0, 0>;
940 def SRL : shift_rotate_imm32<"srl", srl>, SRA_FM<2, 0>;
941 def SRA : shift_rotate_imm32<"sra", sra>, SRA_FM<3, 0>;
942 def SLLV : shift_rotate_reg<0x04, 0x00, "sllv", shl, CPURegs>;
943 def SRLV : shift_rotate_reg<0x06, 0x00, "srlv", srl, CPURegs>;
944 def SRAV : shift_rotate_reg<0x07, 0x00, "srav", sra, CPURegs>;
946 // Rotate Instructions
947 let Predicates = [HasMips32r2, HasStdEnc] in {
948 def ROTR : shift_rotate_imm32<"rotr", rotr>, SRA_FM<2, 1>;
949 def ROTRV : shift_rotate_reg<0x06, 0x01, "rotrv", rotr, CPURegs>;
952 /// Load and Store Instructions
954 defm LB : LoadM32<0x20, "lb", sextloadi8>;
955 defm LBu : LoadM32<0x24, "lbu", zextloadi8>;
956 defm LH : LoadM32<0x21, "lh", sextloadi16>;
957 defm LHu : LoadM32<0x25, "lhu", zextloadi16>;
958 defm LW : LoadM32<0x23, "lw", load>;
959 defm SB : StoreM32<0x28, "sb", truncstorei8>;
960 defm SH : StoreM32<0x29, "sh", truncstorei16>;
961 defm SW : StoreM32<0x2b, "sw", store>;
963 /// load/store left/right
964 defm LWL : LoadLeftRightM32<0x22, "lwl", MipsLWL>;
965 defm LWR : LoadLeftRightM32<0x26, "lwr", MipsLWR>;
966 defm SWL : StoreLeftRightM32<0x2a, "swl", MipsSWL>;
967 defm SWR : StoreLeftRightM32<0x2e, "swr", MipsSWR>;
969 let hasSideEffects = 1 in
970 def SYNC : InstSE<(outs), (ins i32imm:$stype), "sync $stype",
971 [(MipsSync imm:$stype)], NoItinerary, FrmOther>
976 let Inst{10-6} = stype;
980 /// Load-linked, Store-conditional
981 def LL : LLBase<0x30, "ll", CPURegs, mem>,
982 Requires<[NotN64, HasStdEnc]>;
983 def LL_P8 : LLBase<0x30, "ll", CPURegs, mem64>,
984 Requires<[IsN64, HasStdEnc]> {
985 let DecoderNamespace = "Mips64";
988 def SC : SCBase<0x38, "sc", CPURegs, mem>,
989 Requires<[NotN64, HasStdEnc]>;
990 def SC_P8 : SCBase<0x38, "sc", CPURegs, mem64>,
991 Requires<[IsN64, HasStdEnc]> {
992 let DecoderNamespace = "Mips64";
995 /// Jump and Branch Instructions
996 def J : JumpFJ<0x02, jmptarget, "j", br, bb>,
997 Requires<[RelocStatic, HasStdEnc]>, IsBranch;
998 def JR : IndirectBranch<CPURegs>;
999 def B : UncondBranch<0x04, "b">;
1000 def BEQ : CBranch<0x04, "beq", seteq, CPURegs>;
1001 def BNE : CBranch<0x05, "bne", setne, CPURegs>;
1002 def BGEZ : CBranchZero<0x01, 1, "bgez", setge, CPURegs>;
1003 def BGTZ : CBranchZero<0x07, 0, "bgtz", setgt, CPURegs>;
1004 def BLEZ : CBranchZero<0x06, 0, "blez", setle, CPURegs>;
1005 def BLTZ : CBranchZero<0x01, 0, "bltz", setlt, CPURegs>;
1007 let rt = 0, rs = 0, isBranch = 1, isTerminator = 1, isBarrier = 1,
1008 hasDelaySlot = 1, Defs = [RA] in
1009 def BAL_BR: FI<0x1, (outs), (ins brtarget:$imm16), "bal\t$imm16", [], IIBranch>;
1011 def JAL : JumpLink<0x03, "jal">;
1012 def JALR : JumpLinkReg<0x00, 0x09, "jalr", CPURegs>;
1013 def BGEZAL : BranchLink<"bgezal", 0x11, CPURegs>;
1014 def BLTZAL : BranchLink<"bltzal", 0x10, CPURegs>;
1015 def TAILCALL : JumpFJ<0x02, calltarget, "j", MipsTailCall, imm>, IsTailCall;
1016 def TAILCALL_R : JumpFR<CPURegs, MipsTailCall>, IsTailCall;
1018 def RET : RetBase<CPURegs>;
1020 /// Multiply and Divide Instructions.
1021 def MULT : Mult32<0x18, "mult", IIImul>;
1022 def MULTu : Mult32<0x19, "multu", IIImul>;
1023 def SDIV : Div32<MipsDivRem, 0x1a, "div", IIIdiv>;
1024 def UDIV : Div32<MipsDivRemU, 0x1b, "divu", IIIdiv>;
1026 def MTHI : MoveToLOHI<0x11, "mthi", CPURegs, [HI]>;
1027 def MTLO : MoveToLOHI<0x13, "mtlo", CPURegs, [LO]>;
1028 def MFHI : MoveFromLOHI<0x10, "mfhi", CPURegs, [HI]>;
1029 def MFLO : MoveFromLOHI<0x12, "mflo", CPURegs, [LO]>;
1031 /// Sign Ext In Register Instructions.
1032 def SEB : SignExtInReg<0x10, "seb", i8, CPURegs>;
1033 def SEH : SignExtInReg<0x18, "seh", i16, CPURegs>;
1036 def CLZ : CountLeading0<0x20, "clz", CPURegs>;
1037 def CLO : CountLeading1<0x21, "clo", CPURegs>;
1039 /// Word Swap Bytes Within Halfwords
1040 def WSBH : SubwordSwap<0x20, 0x2, "wsbh", CPURegs>;
1044 def NOP : FJ<0, (outs), (ins), "nop", [], IIAlu>;
1046 // FrameIndexes are legalized when they are operands from load/store
1047 // instructions. The same not happens for stack address copies, so an
1048 // add op with mem ComplexPattern is used and the stack address copy
1049 // can be matched. It's similar to Sparc LEA_ADDRi
1050 def LEA_ADDiu : EffectiveAddress<0x09,"addiu\t$rt, $addr", CPURegs, mem_ea>;
1053 def MADD : MArithR<0, "madd", MipsMAdd, 1>;
1054 def MADDU : MArithR<1, "maddu", MipsMAddu, 1>;
1055 def MSUB : MArithR<4, "msub", MipsMSub>;
1056 def MSUBU : MArithR<5, "msubu", MipsMSubu>;
1058 // MUL is a assembly macro in the current used ISAs. In recent ISA's
1059 // it is a real instruction.
1060 def MUL : ArithLogicR<"mul", IIImul, CPURegs, 1, mul>, ADD_FM<0x1c, 0x02>;
1062 def RDHWR : ReadHardware<CPURegs, HWRegs>;
1064 def EXT : ExtBase<0, "ext", CPURegs>;
1065 def INS : InsBase<4, "ins", CPURegs>;
1067 //===----------------------------------------------------------------------===//
1068 // Instruction aliases
1069 //===----------------------------------------------------------------------===//
1070 def : InstAlias<"move $dst,$src", (ADD CPURegs:$dst,CPURegs:$src,ZERO)>;
1071 def : InstAlias<"bal $offset", (BGEZAL RA,brtarget:$offset)>;
1072 def : InstAlias<"addu $rs,$rt,$imm",
1073 (ADDiu CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1074 def : InstAlias<"add $rs,$rt,$imm",
1075 (ADDi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1076 def : InstAlias<"and $rs,$rt,$imm",
1077 (ANDi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1078 def : InstAlias<"j $rs", (JR CPURegs:$rs)>;
1079 def : InstAlias<"not $rt,$rs", (NOR CPURegs:$rt,CPURegs:$rs,ZERO)>;
1080 def : InstAlias<"neg $rt,$rs", (SUB CPURegs:$rt,ZERO,CPURegs:$rs)>;
1081 def : InstAlias<"negu $rt,$rs", (SUBu CPURegs:$rt,ZERO,CPURegs:$rs)>;
1082 def : InstAlias<"slt $rs,$rt,$imm",
1083 (SLTi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1084 def : InstAlias<"xor $rs,$rt,$imm",
1085 (XORi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
1087 //===----------------------------------------------------------------------===//
1088 // Arbitrary patterns that map to one or more instructions
1089 //===----------------------------------------------------------------------===//
1092 def : MipsPat<(i32 immSExt16:$in),
1093 (ADDiu ZERO, imm:$in)>;
1094 def : MipsPat<(i32 immZExt16:$in),
1095 (ORi ZERO, imm:$in)>;
1096 def : MipsPat<(i32 immLow16Zero:$in),
1097 (LUi (HI16 imm:$in))>;
1099 // Arbitrary immediates
1100 def : MipsPat<(i32 imm:$imm),
1101 (ORi (LUi (HI16 imm:$imm)), (LO16 imm:$imm))>;
1103 // Carry MipsPatterns
1104 def : MipsPat<(subc CPURegs:$lhs, CPURegs:$rhs),
1105 (SUBu CPURegs:$lhs, CPURegs:$rhs)>;
1106 def : MipsPat<(addc CPURegs:$lhs, CPURegs:$rhs),
1107 (ADDu CPURegs:$lhs, CPURegs:$rhs)>;
1108 def : MipsPat<(addc CPURegs:$src, immSExt16:$imm),
1109 (ADDiu CPURegs:$src, imm:$imm)>;
1112 def : MipsPat<(MipsJmpLink (i32 tglobaladdr:$dst)),
1113 (JAL tglobaladdr:$dst)>;
1114 def : MipsPat<(MipsJmpLink (i32 texternalsym:$dst)),
1115 (JAL texternalsym:$dst)>;
1116 //def : MipsPat<(MipsJmpLink CPURegs:$dst),
1117 // (JALR CPURegs:$dst)>;
1120 def : MipsPat<(MipsTailCall (iPTR tglobaladdr:$dst)),
1121 (TAILCALL tglobaladdr:$dst)>;
1122 def : MipsPat<(MipsTailCall (iPTR texternalsym:$dst)),
1123 (TAILCALL texternalsym:$dst)>;
1125 def : MipsPat<(MipsHi tglobaladdr:$in), (LUi tglobaladdr:$in)>;
1126 def : MipsPat<(MipsHi tblockaddress:$in), (LUi tblockaddress:$in)>;
1127 def : MipsPat<(MipsHi tjumptable:$in), (LUi tjumptable:$in)>;
1128 def : MipsPat<(MipsHi tconstpool:$in), (LUi tconstpool:$in)>;
1129 def : MipsPat<(MipsHi tglobaltlsaddr:$in), (LUi tglobaltlsaddr:$in)>;
1130 def : MipsPat<(MipsHi texternalsym:$in), (LUi texternalsym:$in)>;
1132 def : MipsPat<(MipsLo tglobaladdr:$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:$in)>;
1137 def : MipsPat<(MipsLo texternalsym:$in), (ADDiu ZERO, texternalsym:$in)>;
1139 def : MipsPat<(add CPURegs:$hi, (MipsLo tglobaladdr:$lo)),
1140 (ADDiu CPURegs:$hi, tglobaladdr:$lo)>;
1141 def : MipsPat<(add CPURegs:$hi, (MipsLo tblockaddress:$lo)),
1142 (ADDiu CPURegs:$hi, tblockaddress:$lo)>;
1143 def : MipsPat<(add CPURegs:$hi, (MipsLo tjumptable:$lo)),
1144 (ADDiu CPURegs:$hi, tjumptable:$lo)>;
1145 def : MipsPat<(add CPURegs:$hi, (MipsLo tconstpool:$lo)),
1146 (ADDiu CPURegs:$hi, tconstpool:$lo)>;
1147 def : MipsPat<(add CPURegs:$hi, (MipsLo tglobaltlsaddr:$lo)),
1148 (ADDiu CPURegs:$hi, tglobaltlsaddr:$lo)>;
1151 def : MipsPat<(add CPURegs:$gp, (MipsGPRel tglobaladdr:$in)),
1152 (ADDiu CPURegs:$gp, tglobaladdr:$in)>;
1153 def : MipsPat<(add CPURegs:$gp, (MipsGPRel tconstpool:$in)),
1154 (ADDiu CPURegs:$gp, tconstpool:$in)>;
1157 class WrapperPat<SDNode node, Instruction ADDiuOp, RegisterClass RC>:
1158 MipsPat<(MipsWrapper RC:$gp, node:$in),
1159 (ADDiuOp RC:$gp, node:$in)>;
1161 def : WrapperPat<tglobaladdr, ADDiu, CPURegs>;
1162 def : WrapperPat<tconstpool, ADDiu, CPURegs>;
1163 def : WrapperPat<texternalsym, ADDiu, CPURegs>;
1164 def : WrapperPat<tblockaddress, ADDiu, CPURegs>;
1165 def : WrapperPat<tjumptable, ADDiu, CPURegs>;
1166 def : WrapperPat<tglobaltlsaddr, ADDiu, CPURegs>;
1168 // Mips does not have "not", so we expand our way
1169 def : MipsPat<(not CPURegs:$in),
1170 (NOR CPURegs:$in, ZERO)>;
1173 let Predicates = [NotN64, HasStdEnc] in {
1174 def : MipsPat<(i32 (extloadi1 addr:$src)), (LBu addr:$src)>;
1175 def : MipsPat<(i32 (extloadi8 addr:$src)), (LBu addr:$src)>;
1176 def : MipsPat<(i32 (extloadi16 addr:$src)), (LHu addr:$src)>;
1178 let Predicates = [IsN64, HasStdEnc] in {
1179 def : MipsPat<(i32 (extloadi1 addr:$src)), (LBu_P8 addr:$src)>;
1180 def : MipsPat<(i32 (extloadi8 addr:$src)), (LBu_P8 addr:$src)>;
1181 def : MipsPat<(i32 (extloadi16 addr:$src)), (LHu_P8 addr:$src)>;
1185 let Predicates = [NotN64, HasStdEnc] in {
1186 def : MipsPat<(store (i32 0), addr:$dst), (SW ZERO, addr:$dst)>;
1188 let Predicates = [IsN64, HasStdEnc] in {
1189 def : MipsPat<(store (i32 0), addr:$dst), (SW_P8 ZERO, addr:$dst)>;
1193 multiclass BrcondPats<RegisterClass RC, Instruction BEQOp, Instruction BNEOp,
1194 Instruction SLTOp, Instruction SLTuOp, Instruction SLTiOp,
1195 Instruction SLTiuOp, Register ZEROReg> {
1196 def : MipsPat<(brcond (i32 (setne RC:$lhs, 0)), bb:$dst),
1197 (BNEOp RC:$lhs, ZEROReg, bb:$dst)>;
1198 def : MipsPat<(brcond (i32 (seteq RC:$lhs, 0)), bb:$dst),
1199 (BEQOp RC:$lhs, ZEROReg, bb:$dst)>;
1201 def : MipsPat<(brcond (i32 (setge RC:$lhs, RC:$rhs)), bb:$dst),
1202 (BEQ (SLTOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>;
1203 def : MipsPat<(brcond (i32 (setuge RC:$lhs, RC:$rhs)), bb:$dst),
1204 (BEQ (SLTuOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>;
1205 def : MipsPat<(brcond (i32 (setge RC:$lhs, immSExt16:$rhs)), bb:$dst),
1206 (BEQ (SLTiOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
1207 def : MipsPat<(brcond (i32 (setuge RC:$lhs, immSExt16:$rhs)), bb:$dst),
1208 (BEQ (SLTiuOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
1210 def : MipsPat<(brcond (i32 (setle RC:$lhs, RC:$rhs)), bb:$dst),
1211 (BEQ (SLTOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>;
1212 def : MipsPat<(brcond (i32 (setule RC:$lhs, RC:$rhs)), bb:$dst),
1213 (BEQ (SLTuOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>;
1215 def : MipsPat<(brcond RC:$cond, bb:$dst),
1216 (BNEOp RC:$cond, ZEROReg, bb:$dst)>;
1219 defm : BrcondPats<CPURegs, BEQ, BNE, SLT, SLTu, SLTi, SLTiu, ZERO>;
1222 multiclass SeteqPats<RegisterClass RC, Instruction SLTiuOp, Instruction XOROp,
1223 Instruction SLTuOp, Register ZEROReg> {
1224 def : MipsPat<(seteq RC:$lhs, RC:$rhs),
1225 (SLTiuOp (XOROp RC:$lhs, RC:$rhs), 1)>;
1226 def : MipsPat<(setne RC:$lhs, RC:$rhs),
1227 (SLTuOp ZEROReg, (XOROp RC:$lhs, RC:$rhs))>;
1230 multiclass SetlePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1231 def : MipsPat<(setle RC:$lhs, RC:$rhs),
1232 (XORi (SLTOp RC:$rhs, RC:$lhs), 1)>;
1233 def : MipsPat<(setule RC:$lhs, RC:$rhs),
1234 (XORi (SLTuOp RC:$rhs, RC:$lhs), 1)>;
1237 multiclass SetgtPats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1238 def : MipsPat<(setgt RC:$lhs, RC:$rhs),
1239 (SLTOp RC:$rhs, RC:$lhs)>;
1240 def : MipsPat<(setugt RC:$lhs, RC:$rhs),
1241 (SLTuOp RC:$rhs, RC:$lhs)>;
1244 multiclass SetgePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1245 def : MipsPat<(setge RC:$lhs, RC:$rhs),
1246 (XORi (SLTOp RC:$lhs, RC:$rhs), 1)>;
1247 def : MipsPat<(setuge RC:$lhs, RC:$rhs),
1248 (XORi (SLTuOp RC:$lhs, RC:$rhs), 1)>;
1251 multiclass SetgeImmPats<RegisterClass RC, Instruction SLTiOp,
1252 Instruction SLTiuOp> {
1253 def : MipsPat<(setge RC:$lhs, immSExt16:$rhs),
1254 (XORi (SLTiOp RC:$lhs, immSExt16:$rhs), 1)>;
1255 def : MipsPat<(setuge RC:$lhs, immSExt16:$rhs),
1256 (XORi (SLTiuOp RC:$lhs, immSExt16:$rhs), 1)>;
1259 defm : SeteqPats<CPURegs, SLTiu, XOR, SLTu, ZERO>;
1260 defm : SetlePats<CPURegs, SLT, SLTu>;
1261 defm : SetgtPats<CPURegs, SLT, SLTu>;
1262 defm : SetgePats<CPURegs, SLT, SLTu>;
1263 defm : SetgeImmPats<CPURegs, SLTi, SLTiu>;
1266 def : MipsPat<(bswap CPURegs:$rt), (ROTR (WSBH CPURegs:$rt), 16)>;
1268 //===----------------------------------------------------------------------===//
1269 // Floating Point Support
1270 //===----------------------------------------------------------------------===//
1272 include "MipsInstrFPU.td"
1273 include "Mips64InstrInfo.td"
1274 include "MipsCondMov.td"
1279 include "Mips16InstrFormats.td"
1280 include "Mips16InstrInfo.td"
1283 include "MipsDSPInstrFormats.td"
1284 include "MipsDSPInstrInfo.td"