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 //===----------------------------------------------------------------------===//
14 //===----------------------------------------------------------------------===//
15 // Instruction format superclass
16 //===----------------------------------------------------------------------===//
18 include "MipsInstrFormats.td"
20 //===----------------------------------------------------------------------===//
21 // Mips profiles and nodes
22 //===----------------------------------------------------------------------===//
24 def SDT_MipsRet : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
25 def SDT_MipsJmpLink : SDTypeProfile<0, 1, [SDTCisVT<0, iPTR>]>;
26 def SDT_MipsCMov : SDTypeProfile<1, 4, [SDTCisSameAs<0, 1>,
30 def SDT_MipsCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
31 def SDT_MipsCallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>, SDTCisVT<1, i32>]>;
32 def SDT_MipsMAddMSub : SDTypeProfile<0, 4,
33 [SDTCisVT<0, i32>, SDTCisSameAs<0, 1>,
36 def SDT_MipsDivRem : SDTypeProfile<0, 2,
40 def SDT_MipsThreadPointer : SDTypeProfile<1, 0, [SDTCisPtrTy<0>]>;
42 def SDT_MipsDynAlloc : SDTypeProfile<1, 1, [SDTCisVT<0, iPTR>,
44 def SDT_Sync : SDTypeProfile<0, 1, [SDTCisVT<0, i32>]>;
46 def SDT_Ext : SDTypeProfile<1, 3, [SDTCisInt<0>, SDTCisSameAs<0, 1>,
47 SDTCisVT<2, i32>, SDTCisSameAs<2, 3>]>;
48 def SDT_Ins : SDTypeProfile<1, 4, [SDTCisInt<0>, SDTCisSameAs<0, 1>,
49 SDTCisVT<2, i32>, SDTCisSameAs<2, 3>,
53 def MipsJmpLink : SDNode<"MipsISD::JmpLink",SDT_MipsJmpLink,
54 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
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", SDT_MipsRet, [SDNPHasChain,
78 // These are target-independent nodes, but have target-specific formats.
79 def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_MipsCallSeqStart,
80 [SDNPHasChain, SDNPOutGlue]>;
81 def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_MipsCallSeqEnd,
82 [SDNPHasChain, 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 // Pointer to dynamically allocated stack area.
113 def MipsDynAlloc : SDNode<"MipsISD::DynAlloc", SDT_MipsDynAlloc,
114 [SDNPHasChain, SDNPInGlue]>;
116 def MipsSync : SDNode<"MipsISD::Sync", SDT_Sync, [SDNPHasChain]>;
118 def MipsExt : SDNode<"MipsISD::Ext", SDT_Ext>;
119 def MipsIns : SDNode<"MipsISD::Ins", SDT_Ins>;
121 //===----------------------------------------------------------------------===//
122 // Mips Instruction Predicate Definitions.
123 //===----------------------------------------------------------------------===//
124 def HasSEInReg : Predicate<"Subtarget.hasSEInReg()">,
125 AssemblerPredicate<"FeatureSEInReg">;
126 def HasBitCount : Predicate<"Subtarget.hasBitCount()">,
127 AssemblerPredicate<"FeatureBitCount">;
128 def HasSwap : Predicate<"Subtarget.hasSwap()">,
129 AssemblerPredicate<"FeatureSwap">;
130 def HasCondMov : Predicate<"Subtarget.hasCondMov()">,
131 AssemblerPredicate<"FeatureCondMov">;
132 def HasMips32 : Predicate<"Subtarget.hasMips32()">,
133 AssemblerPredicate<"FeatureMips32">;
134 def HasMips32r2 : Predicate<"Subtarget.hasMips32r2()">,
135 AssemblerPredicate<"FeatureMips32r2">;
136 def HasMips64 : Predicate<"Subtarget.hasMips64()">,
137 AssemblerPredicate<"FeatureMips64">;
138 def HasMips32r2Or64 : Predicate<"Subtarget.hasMips32r2Or64()">,
139 AssemblerPredicate<"FeatureMips32r2,FeatureMips64">;
140 def NotMips64 : Predicate<"!Subtarget.hasMips64()">,
141 AssemblerPredicate<"!FeatureMips64">;
142 def HasMips64r2 : Predicate<"Subtarget.hasMips64r2()">,
143 AssemblerPredicate<"FeatureMips64r2">;
144 def IsN64 : Predicate<"Subtarget.isABI_N64()">,
145 AssemblerPredicate<"FeatureN64">;
146 def NotN64 : Predicate<"!Subtarget.isABI_N64()">,
147 AssemblerPredicate<"!FeatureN64">;
148 def RelocStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">,
149 AssemblerPredicate<"FeatureMips32">;
150 def RelocPIC : Predicate<"TM.getRelocationModel() == Reloc::PIC_">,
151 AssemblerPredicate<"FeatureMips32">;
152 def NoNaNsFPMath : Predicate<"TM.Options.NoNaNsFPMath">,
153 AssemblerPredicate<"FeatureMips32">;
155 //===----------------------------------------------------------------------===//
156 // Mips Operand, Complex Patterns and Transformations Definitions.
157 //===----------------------------------------------------------------------===//
159 // Instruction operand types
160 def jmptarget : Operand<OtherVT> {
161 let EncoderMethod = "getJumpTargetOpValue";
163 def brtarget : Operand<OtherVT> {
164 let EncoderMethod = "getBranchTargetOpValue";
165 let OperandType = "OPERAND_PCREL";
166 let DecoderMethod = "DecodeBranchTarget";
168 def calltarget : Operand<iPTR> {
169 let EncoderMethod = "getJumpTargetOpValue";
171 def calltarget64: Operand<i64>;
172 def simm16 : Operand<i32> {
173 let DecoderMethod= "DecodeSimm16";
175 def simm16_64 : Operand<i64>;
176 def shamt : Operand<i32>;
179 def uimm16 : Operand<i32> {
180 let PrintMethod = "printUnsignedImm";
184 def mem : Operand<i32> {
185 let PrintMethod = "printMemOperand";
186 let MIOperandInfo = (ops CPURegs, simm16);
187 let EncoderMethod = "getMemEncoding";
190 def mem64 : Operand<i64> {
191 let PrintMethod = "printMemOperand";
192 let MIOperandInfo = (ops CPU64Regs, simm16_64);
195 def mem_ea : Operand<i32> {
196 let PrintMethod = "printMemOperandEA";
197 let MIOperandInfo = (ops CPURegs, simm16);
198 let EncoderMethod = "getMemEncoding";
201 def mem_ea_64 : Operand<i64> {
202 let PrintMethod = "printMemOperandEA";
203 let MIOperandInfo = (ops CPU64Regs, simm16_64);
204 let EncoderMethod = "getMemEncoding";
207 // size operand of ext instruction
208 def size_ext : Operand<i32> {
209 let EncoderMethod = "getSizeExtEncoding";
210 let DecoderMethod = "DecodeExtSize";
213 // size operand of ins instruction
214 def size_ins : Operand<i32> {
215 let EncoderMethod = "getSizeInsEncoding";
216 let DecoderMethod = "DecodeInsSize";
219 // Transformation Function - get the lower 16 bits.
220 def LO16 : SDNodeXForm<imm, [{
221 return getImm(N, N->getZExtValue() & 0xFFFF);
224 // Transformation Function - get the higher 16 bits.
225 def HI16 : SDNodeXForm<imm, [{
226 return getImm(N, (N->getZExtValue() >> 16) & 0xFFFF);
229 // Node immediate fits as 16-bit sign extended on target immediate.
231 def immSExt16 : PatLeaf<(imm), [{ return isInt<16>(N->getSExtValue()); }]>;
233 // Node immediate fits as 16-bit zero extended on target immediate.
234 // The LO16 param means that only the lower 16 bits of the node
235 // immediate are caught.
237 def immZExt16 : PatLeaf<(imm), [{
238 if (N->getValueType(0) == MVT::i32)
239 return (uint32_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
241 return (uint64_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
244 // Immediate can be loaded with LUi (32-bit int with lower 16-bit cleared).
245 def immLow16Zero : PatLeaf<(imm), [{
246 int64_t Val = N->getSExtValue();
247 return isInt<32>(Val) && !(Val & 0xffff);
250 // shamt field must fit in 5 bits.
251 def immZExt5 : ImmLeaf<i32, [{return Imm == (Imm & 0x1f);}]>;
253 // Mips Address Mode! SDNode frameindex could possibily be a match
254 // since load and store instructions from stack used it.
255 def addr : ComplexPattern<iPTR, 2, "SelectAddr", [frameindex], [SDNPWantParent]>;
257 //===----------------------------------------------------------------------===//
258 // Pattern fragment for load/store
259 //===----------------------------------------------------------------------===//
260 class UnalignedLoad<PatFrag Node> :
261 PatFrag<(ops node:$ptr), (Node node:$ptr), [{
262 LoadSDNode *LD = cast<LoadSDNode>(N);
263 return LD->getMemoryVT().getSizeInBits()/8 > LD->getAlignment();
266 class AlignedLoad<PatFrag Node> :
267 PatFrag<(ops node:$ptr), (Node node:$ptr), [{
268 LoadSDNode *LD = cast<LoadSDNode>(N);
269 return LD->getMemoryVT().getSizeInBits()/8 <= LD->getAlignment();
272 class UnalignedStore<PatFrag Node> :
273 PatFrag<(ops node:$val, node:$ptr), (Node node:$val, node:$ptr), [{
274 StoreSDNode *SD = cast<StoreSDNode>(N);
275 return SD->getMemoryVT().getSizeInBits()/8 > SD->getAlignment();
278 class AlignedStore<PatFrag Node> :
279 PatFrag<(ops node:$val, node:$ptr), (Node node:$val, node:$ptr), [{
280 StoreSDNode *SD = cast<StoreSDNode>(N);
281 return SD->getMemoryVT().getSizeInBits()/8 <= SD->getAlignment();
284 // Load/Store PatFrags.
285 def sextloadi16_a : AlignedLoad<sextloadi16>;
286 def zextloadi16_a : AlignedLoad<zextloadi16>;
287 def extloadi16_a : AlignedLoad<extloadi16>;
288 def load_a : AlignedLoad<load>;
289 def sextloadi32_a : AlignedLoad<sextloadi32>;
290 def zextloadi32_a : AlignedLoad<zextloadi32>;
291 def extloadi32_a : AlignedLoad<extloadi32>;
292 def truncstorei16_a : AlignedStore<truncstorei16>;
293 def store_a : AlignedStore<store>;
294 def truncstorei32_a : AlignedStore<truncstorei32>;
295 def sextloadi16_u : UnalignedLoad<sextloadi16>;
296 def zextloadi16_u : UnalignedLoad<zextloadi16>;
297 def extloadi16_u : UnalignedLoad<extloadi16>;
298 def load_u : UnalignedLoad<load>;
299 def sextloadi32_u : UnalignedLoad<sextloadi32>;
300 def zextloadi32_u : UnalignedLoad<zextloadi32>;
301 def extloadi32_u : UnalignedLoad<extloadi32>;
302 def truncstorei16_u : UnalignedStore<truncstorei16>;
303 def store_u : UnalignedStore<store>;
304 def truncstorei32_u : UnalignedStore<truncstorei32>;
306 //===----------------------------------------------------------------------===//
307 // Instructions specific format
308 //===----------------------------------------------------------------------===//
310 // Arithmetic and logical instructions with 3 register operands.
311 class ArithLogicR<bits<6> op, bits<6> func, string instr_asm, SDNode OpNode,
312 InstrItinClass itin, RegisterClass RC, bit isComm = 0>:
313 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
314 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
315 [(set RC:$rd, (OpNode RC:$rs, RC:$rt))], itin> {
317 let isCommutable = isComm;
320 class ArithOverflowR<bits<6> op, bits<6> func, string instr_asm,
321 InstrItinClass itin, RegisterClass RC, bit isComm = 0>:
322 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
323 !strconcat(instr_asm, "\t$rd, $rs, $rt"), [], itin> {
325 let isCommutable = isComm;
328 // Arithmetic and logical instructions with 2 register operands.
329 class ArithLogicI<bits<6> op, string instr_asm, SDNode OpNode,
330 Operand Od, PatLeaf imm_type, RegisterClass RC> :
331 FI<op, (outs RC:$rt), (ins RC:$rs, Od:$imm16),
332 !strconcat(instr_asm, "\t$rt, $rs, $imm16"),
333 [(set RC:$rt, (OpNode RC:$rs, imm_type:$imm16))], IIAlu>;
335 class ArithOverflowI<bits<6> op, string instr_asm, SDNode OpNode,
336 Operand Od, PatLeaf imm_type, RegisterClass RC> :
337 FI<op, (outs RC:$rt), (ins RC:$rs, Od:$imm16),
338 !strconcat(instr_asm, "\t$rt, $rs, $imm16"), [], IIAlu>;
340 // Arithmetic Multiply ADD/SUB
341 let rd = 0, shamt = 0, Defs = [HI, LO], Uses = [HI, LO] in
342 class MArithR<bits<6> func, string instr_asm, SDNode op, bit isComm = 0> :
343 FR<0x1c, func, (outs), (ins CPURegs:$rs, CPURegs:$rt),
344 !strconcat(instr_asm, "\t$rs, $rt"),
345 [(op CPURegs:$rs, CPURegs:$rt, LO, HI)], IIImul> {
348 let isCommutable = isComm;
352 class LogicNOR<bits<6> op, bits<6> func, string instr_asm, RegisterClass RC>:
353 FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt),
354 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
355 [(set RC:$rd, (not (or RC:$rs, RC:$rt)))], IIAlu> {
357 let isCommutable = 1;
361 class shift_rotate_imm<bits<6> func, bits<5> isRotate, string instr_asm,
362 SDNode OpNode, PatFrag PF, Operand ImmOpnd,
364 FR<0x00, func, (outs RC:$rd), (ins RC:$rt, ImmOpnd:$shamt),
365 !strconcat(instr_asm, "\t$rd, $rt, $shamt"),
366 [(set RC:$rd, (OpNode RC:$rt, PF:$shamt))], IIAlu> {
370 // 32-bit shift instructions.
371 class shift_rotate_imm32<bits<6> func, bits<5> isRotate, string instr_asm,
373 shift_rotate_imm<func, isRotate, instr_asm, OpNode, immZExt5, shamt, CPURegs>;
375 class shift_rotate_reg<bits<6> func, bits<5> isRotate, string instr_asm,
376 SDNode OpNode, RegisterClass RC>:
377 FR<0x00, func, (outs RC:$rd), (ins CPURegs:$rs, RC:$rt),
378 !strconcat(instr_asm, "\t$rd, $rt, $rs"),
379 [(set RC:$rd, (OpNode RC:$rt, CPURegs:$rs))], IIAlu> {
380 let shamt = isRotate;
383 // Load Upper Imediate
384 class LoadUpper<bits<6> op, string instr_asm, RegisterClass RC, Operand Imm>:
385 FI<op, (outs RC:$rt), (ins Imm:$imm16),
386 !strconcat(instr_asm, "\t$rt, $imm16"), [], IIAlu> {
390 class FMem<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
391 InstrItinClass itin>: FFI<op, outs, ins, asmstr, pattern> {
393 let Inst{25-21} = addr{20-16};
394 let Inst{15-0} = addr{15-0};
395 let DecoderMethod = "DecodeMem";
399 let canFoldAsLoad = 1 in
400 class LoadM<bits<6> op, string instr_asm, PatFrag OpNode, RegisterClass RC,
401 Operand MemOpnd, bit Pseudo>:
402 FMem<op, (outs RC:$rt), (ins MemOpnd:$addr),
403 !strconcat(instr_asm, "\t$rt, $addr"),
404 [(set RC:$rt, (OpNode addr:$addr))], IILoad> {
405 let isPseudo = Pseudo;
408 class StoreM<bits<6> op, string instr_asm, PatFrag OpNode, RegisterClass RC,
409 Operand MemOpnd, bit Pseudo>:
410 FMem<op, (outs), (ins RC:$rt, MemOpnd:$addr),
411 !strconcat(instr_asm, "\t$rt, $addr"),
412 [(OpNode RC:$rt, addr:$addr)], IIStore> {
413 let isPseudo = Pseudo;
416 // Unaligned Memory Load/Store
417 let canFoldAsLoad = 1 in
418 class LoadUnAlign<bits<6> op, RegisterClass RC, Operand MemOpnd>:
419 FMem<op, (outs RC:$rt), (ins MemOpnd:$addr), "", [], IILoad> {}
421 class StoreUnAlign<bits<6> op, RegisterClass RC, Operand MemOpnd>:
422 FMem<op, (outs), (ins RC:$rt, MemOpnd:$addr), "", [], IIStore> {}
425 multiclass LoadM32<bits<6> op, string instr_asm, PatFrag OpNode,
427 def #NAME# : LoadM<op, instr_asm, OpNode, CPURegs, mem, Pseudo>,
429 def _P8 : LoadM<op, instr_asm, OpNode, CPURegs, mem64, Pseudo>,
431 let DecoderNamespace = "Mips64";
432 let isCodeGenOnly = 1;
437 multiclass LoadM64<bits<6> op, string instr_asm, PatFrag OpNode,
439 def #NAME# : LoadM<op, instr_asm, OpNode, CPU64Regs, mem, Pseudo>,
441 def _P8 : LoadM<op, instr_asm, OpNode, CPU64Regs, mem64, Pseudo>,
443 let DecoderNamespace = "Mips64";
444 let isCodeGenOnly = 1;
449 multiclass LoadUnAlign32<bits<6> op> {
450 def #NAME# : LoadUnAlign<op, CPURegs, mem>,
452 def _P8 : LoadUnAlign<op, CPURegs, mem64>,
454 let DecoderNamespace = "Mips64";
455 let isCodeGenOnly = 1;
459 multiclass StoreM32<bits<6> op, string instr_asm, PatFrag OpNode,
461 def #NAME# : StoreM<op, instr_asm, OpNode, CPURegs, mem, Pseudo>,
463 def _P8 : StoreM<op, instr_asm, OpNode, CPURegs, mem64, Pseudo>,
465 let DecoderNamespace = "Mips64";
466 let isCodeGenOnly = 1;
471 multiclass StoreM64<bits<6> op, string instr_asm, PatFrag OpNode,
473 def #NAME# : StoreM<op, instr_asm, OpNode, CPU64Regs, mem, Pseudo>,
475 def _P8 : StoreM<op, instr_asm, OpNode, CPU64Regs, mem64, Pseudo>,
477 let DecoderNamespace = "Mips64";
478 let isCodeGenOnly = 1;
483 multiclass StoreUnAlign32<bits<6> op> {
484 def #NAME# : StoreUnAlign<op, CPURegs, mem>,
486 def _P8 : StoreUnAlign<op, CPURegs, mem64>,
488 let DecoderNamespace = "Mips64";
489 let isCodeGenOnly = 1;
493 // Conditional Branch
494 class CBranch<bits<6> op, string instr_asm, PatFrag cond_op, RegisterClass RC>:
495 BranchBase<op, (outs), (ins RC:$rs, RC:$rt, brtarget:$imm16),
496 !strconcat(instr_asm, "\t$rs, $rt, $imm16"),
497 [(brcond (i32 (cond_op RC:$rs, RC:$rt)), bb:$imm16)], IIBranch> {
499 let isTerminator = 1;
500 let hasDelaySlot = 1;
503 class CBranchZero<bits<6> op, bits<5> _rt, string instr_asm, PatFrag cond_op,
505 BranchBase<op, (outs), (ins RC:$rs, brtarget:$imm16),
506 !strconcat(instr_asm, "\t$rs, $imm16"),
507 [(brcond (i32 (cond_op RC:$rs, 0)), bb:$imm16)], IIBranch> {
510 let isTerminator = 1;
511 let hasDelaySlot = 1;
515 class SetCC_R<bits<6> op, bits<6> func, string instr_asm, PatFrag cond_op,
517 FR<op, func, (outs CPURegs:$rd), (ins RC:$rs, RC:$rt),
518 !strconcat(instr_asm, "\t$rd, $rs, $rt"),
519 [(set CPURegs:$rd, (cond_op RC:$rs, RC:$rt))],
524 class SetCC_I<bits<6> op, string instr_asm, PatFrag cond_op, Operand Od,
525 PatLeaf imm_type, RegisterClass RC>:
526 FI<op, (outs CPURegs:$rt), (ins RC:$rs, Od:$imm16),
527 !strconcat(instr_asm, "\t$rt, $rs, $imm16"),
528 [(set CPURegs:$rt, (cond_op RC:$rs, imm_type:$imm16))],
532 class JumpFJ<bits<6> op, string instr_asm>:
533 FJ<op, (outs), (ins jmptarget:$target),
534 !strconcat(instr_asm, "\t$target"), [(br bb:$target)], IIBranch> {
538 let hasDelaySlot = 1;
539 let Predicates = [RelocStatic];
540 let DecoderMethod = "DecodeJumpTarget";
543 // Unconditional branch
544 class UncondBranch<bits<6> op, string instr_asm>:
545 BranchBase<op, (outs), (ins brtarget:$imm16),
546 !strconcat(instr_asm, "\t$imm16"), [(br bb:$imm16)], IIBranch> {
550 let isTerminator = 1;
552 let hasDelaySlot = 1;
553 let Predicates = [RelocPIC];
556 let isBranch=1, isTerminator=1, isBarrier=1, rd=0, hasDelaySlot = 1,
557 isIndirectBranch = 1 in
558 class JumpFR<bits<6> op, bits<6> func, string instr_asm, RegisterClass RC>:
559 FR<op, func, (outs), (ins RC:$rs),
560 !strconcat(instr_asm, "\t$rs"), [(brind RC:$rs)], IIBranch> {
566 // Jump and Link (Call)
567 let isCall=1, hasDelaySlot=1 in {
568 class JumpLink<bits<6> op, string instr_asm>:
569 FJ<op, (outs), (ins calltarget:$target, variable_ops),
570 !strconcat(instr_asm, "\t$target"), [(MipsJmpLink imm:$target)],
572 let DecoderMethod = "DecodeJumpTarget";
575 class JumpLinkReg<bits<6> op, bits<6> func, string instr_asm,
577 FR<op, func, (outs), (ins RC:$rs, variable_ops),
578 !strconcat(instr_asm, "\t$rs"), [(MipsJmpLink RC:$rs)], IIBranch> {
584 class BranchLink<string instr_asm, bits<5> _rt, RegisterClass RC>:
585 FI<0x1, (outs), (ins RC:$rs, brtarget:$imm16, variable_ops),
586 !strconcat(instr_asm, "\t$rs, $imm16"), [], IIBranch> {
592 class Mult<bits<6> func, string instr_asm, InstrItinClass itin,
593 RegisterClass RC, list<Register> DefRegs>:
594 FR<0x00, func, (outs), (ins RC:$rs, RC:$rt),
595 !strconcat(instr_asm, "\t$rs, $rt"), [], itin> {
598 let isCommutable = 1;
602 class Mult32<bits<6> func, string instr_asm, InstrItinClass itin>:
603 Mult<func, instr_asm, itin, CPURegs, [HI, LO]>;
605 class Div<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin,
606 RegisterClass RC, list<Register> DefRegs>:
607 FR<0x00, func, (outs), (ins RC:$rs, RC:$rt),
608 !strconcat(instr_asm, "\t$$zero, $rs, $rt"),
609 [(op RC:$rs, RC:$rt)], itin> {
615 class Div32<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin>:
616 Div<op, func, instr_asm, itin, CPURegs, [HI, LO]>;
619 class MoveFromLOHI<bits<6> func, string instr_asm, RegisterClass RC,
620 list<Register> UseRegs>:
621 FR<0x00, func, (outs RC:$rd), (ins),
622 !strconcat(instr_asm, "\t$rd"), [], IIHiLo> {
629 class MoveToLOHI<bits<6> func, string instr_asm, RegisterClass RC,
630 list<Register> DefRegs>:
631 FR<0x00, func, (outs), (ins RC:$rs),
632 !strconcat(instr_asm, "\t$rs"), [], IIHiLo> {
639 class EffectiveAddress<string instr_asm, RegisterClass RC, Operand Mem> :
640 FMem<0x09, (outs RC:$rt), (ins Mem:$addr),
641 instr_asm, [(set RC:$rt, addr:$addr)], IIAlu>;
643 // Count Leading Ones/Zeros in Word
644 class CountLeading0<bits<6> func, string instr_asm, RegisterClass RC>:
645 FR<0x1c, func, (outs RC:$rd), (ins RC:$rs),
646 !strconcat(instr_asm, "\t$rd, $rs"),
647 [(set RC:$rd, (ctlz RC:$rs))], IIAlu>,
648 Requires<[HasBitCount]> {
653 class CountLeading1<bits<6> func, string instr_asm, RegisterClass RC>:
654 FR<0x1c, func, (outs RC:$rd), (ins RC:$rs),
655 !strconcat(instr_asm, "\t$rd, $rs"),
656 [(set RC:$rd, (ctlz (not RC:$rs)))], IIAlu>,
657 Requires<[HasBitCount]> {
662 // Sign Extend in Register.
663 class SignExtInReg<bits<5> sa, string instr_asm, ValueType vt,
665 FR<0x1f, 0x20, (outs RC:$rd), (ins RC:$rt),
666 !strconcat(instr_asm, "\t$rd, $rt"),
667 [(set RC:$rd, (sext_inreg RC:$rt, vt))], NoItinerary> {
670 let Predicates = [HasSEInReg];
674 class SubwordSwap<bits<6> func, bits<5> sa, string instr_asm, RegisterClass RC>:
675 FR<0x1f, func, (outs RC:$rd), (ins RC:$rt),
676 !strconcat(instr_asm, "\t$rd, $rt"), [], NoItinerary> {
679 let Predicates = [HasSwap];
683 class ReadHardware<RegisterClass CPURegClass, RegisterClass HWRegClass>
684 : FR<0x1f, 0x3b, (outs CPURegClass:$rt), (ins HWRegClass:$rd),
685 "rdhwr\t$rt, $rd", [], IIAlu> {
691 class ExtBase<bits<6> _funct, string instr_asm, RegisterClass RC>:
692 FR<0x1f, _funct, (outs RC:$rt), (ins RC:$rs, uimm16:$pos, size_ext:$sz),
693 !strconcat(instr_asm, " $rt, $rs, $pos, $sz"),
694 [(set RC:$rt, (MipsExt RC:$rs, imm:$pos, imm:$sz))], NoItinerary> {
699 let Predicates = [HasMips32r2];
702 class InsBase<bits<6> _funct, string instr_asm, RegisterClass RC>:
703 FR<0x1f, _funct, (outs RC:$rt),
704 (ins RC:$rs, uimm16:$pos, size_ins:$sz, RC:$src),
705 !strconcat(instr_asm, " $rt, $rs, $pos, $sz"),
706 [(set RC:$rt, (MipsIns RC:$rs, imm:$pos, imm:$sz, RC:$src))],
712 let Predicates = [HasMips32r2];
713 let Constraints = "$src = $rt";
716 // Atomic instructions with 2 source operands (ATOMIC_SWAP & ATOMIC_LOAD_*).
717 class Atomic2Ops<PatFrag Op, string Opstr, RegisterClass DRC,
719 MipsPseudo<(outs DRC:$dst), (ins PRC:$ptr, DRC:$incr),
720 !strconcat("atomic_", Opstr, "\t$dst, $ptr, $incr"),
721 [(set DRC:$dst, (Op PRC:$ptr, DRC:$incr))]>;
723 multiclass Atomic2Ops32<PatFrag Op, string Opstr> {
724 def #NAME# : Atomic2Ops<Op, Opstr, CPURegs, CPURegs>, Requires<[NotN64]>;
725 def _P8 : Atomic2Ops<Op, Opstr, CPURegs, CPU64Regs>, Requires<[IsN64]> {
726 let DecoderNamespace = "Mips64";
730 // Atomic Compare & Swap.
731 class AtomicCmpSwap<PatFrag Op, string Width, RegisterClass DRC,
733 MipsPseudo<(outs DRC:$dst), (ins PRC:$ptr, DRC:$cmp, DRC:$swap),
734 !strconcat("atomic_cmp_swap_", Width, "\t$dst, $ptr, $cmp, $swap"),
735 [(set DRC:$dst, (Op PRC:$ptr, DRC:$cmp, DRC:$swap))]>;
737 multiclass AtomicCmpSwap32<PatFrag Op, string Width> {
738 def #NAME# : AtomicCmpSwap<Op, Width, CPURegs, CPURegs>, Requires<[NotN64]>;
739 def _P8 : AtomicCmpSwap<Op, Width, CPURegs, CPU64Regs>, Requires<[IsN64]> {
740 let DecoderNamespace = "Mips64";
744 class LLBase<bits<6> Opc, string opstring, RegisterClass RC, Operand Mem> :
745 FMem<Opc, (outs RC:$rt), (ins Mem:$addr),
746 !strconcat(opstring, "\t$rt, $addr"), [], IILoad> {
750 class SCBase<bits<6> Opc, string opstring, RegisterClass RC, Operand Mem> :
751 FMem<Opc, (outs RC:$dst), (ins RC:$rt, Mem:$addr),
752 !strconcat(opstring, "\t$rt, $addr"), [], IIStore> {
754 let Constraints = "$rt = $dst";
757 //===----------------------------------------------------------------------===//
758 // Pseudo instructions
759 //===----------------------------------------------------------------------===//
761 // As stack alignment is always done with addiu, we need a 16-bit immediate
762 let Defs = [SP], Uses = [SP] in {
763 def ADJCALLSTACKDOWN : MipsPseudo<(outs), (ins uimm16:$amt),
764 "!ADJCALLSTACKDOWN $amt",
765 [(callseq_start timm:$amt)]>;
766 def ADJCALLSTACKUP : MipsPseudo<(outs), (ins uimm16:$amt1, uimm16:$amt2),
767 "!ADJCALLSTACKUP $amt1",
768 [(callseq_end timm:$amt1, timm:$amt2)]>;
771 // Some assembly macros need to avoid pseudoinstructions and assembler
772 // automatic reodering, we should reorder ourselves.
773 def MACRO : MipsPseudo<(outs), (ins), ".set\tmacro", []>;
774 def REORDER : MipsPseudo<(outs), (ins), ".set\treorder", []>;
775 def NOMACRO : MipsPseudo<(outs), (ins), ".set\tnomacro", []>;
776 def NOREORDER : MipsPseudo<(outs), (ins), ".set\tnoreorder", []>;
778 // These macros are inserted to prevent GAS from complaining
779 // when using the AT register.
780 def NOAT : MipsPseudo<(outs), (ins), ".set\tnoat", []>;
781 def ATMACRO : MipsPseudo<(outs), (ins), ".set\tat", []>;
783 // When handling PIC code the assembler needs .cpload and .cprestore
784 // directives. If the real instructions corresponding these directives
785 // are used, we have the same behavior, but get also a bunch of warnings
786 // from the assembler.
787 def CPLOAD : MipsPseudo<(outs), (ins CPURegs:$picreg), ".cpload\t$picreg", []>;
788 def CPRESTORE : MipsPseudo<(outs), (ins i32imm:$loc), ".cprestore\t$loc", []>;
790 // For O32 ABI & PIC & non-fixed global base register, the following instruction
791 // seqeunce is emitted to set the global base register:
793 // 0. lui $2, %hi(_gp_disp)
794 // 1. addiu $2, $2, %lo(_gp_disp)
795 // 2. addu $globalbasereg, $2, $t9
797 // SETGP01 is emitted during Prologue/Epilogue insertion and then converted to
798 // instructions 0 and 1 in the sequence above during MC lowering.
799 // SETGP2 is emitted just before register allocation and converted to
800 // instruction 2 just prior to post-RA scheduling.
802 // These pseudo instructions are needed to ensure no instructions are inserted
803 // before or between instructions 0 and 1, which is a limitation imposed by
806 def SETGP01 : MipsPseudo<(outs CPURegs:$dst), (ins), "", []>;
807 def SETGP2 : MipsPseudo<(outs CPURegs:$globalreg), (ins CPURegs:$picreg), "",
810 let usesCustomInserter = 1 in {
811 defm ATOMIC_LOAD_ADD_I8 : Atomic2Ops32<atomic_load_add_8, "load_add_8">;
812 defm ATOMIC_LOAD_ADD_I16 : Atomic2Ops32<atomic_load_add_16, "load_add_16">;
813 defm ATOMIC_LOAD_ADD_I32 : Atomic2Ops32<atomic_load_add_32, "load_add_32">;
814 defm ATOMIC_LOAD_SUB_I8 : Atomic2Ops32<atomic_load_sub_8, "load_sub_8">;
815 defm ATOMIC_LOAD_SUB_I16 : Atomic2Ops32<atomic_load_sub_16, "load_sub_16">;
816 defm ATOMIC_LOAD_SUB_I32 : Atomic2Ops32<atomic_load_sub_32, "load_sub_32">;
817 defm ATOMIC_LOAD_AND_I8 : Atomic2Ops32<atomic_load_and_8, "load_and_8">;
818 defm ATOMIC_LOAD_AND_I16 : Atomic2Ops32<atomic_load_and_16, "load_and_16">;
819 defm ATOMIC_LOAD_AND_I32 : Atomic2Ops32<atomic_load_and_32, "load_and_32">;
820 defm ATOMIC_LOAD_OR_I8 : Atomic2Ops32<atomic_load_or_8, "load_or_8">;
821 defm ATOMIC_LOAD_OR_I16 : Atomic2Ops32<atomic_load_or_16, "load_or_16">;
822 defm ATOMIC_LOAD_OR_I32 : Atomic2Ops32<atomic_load_or_32, "load_or_32">;
823 defm ATOMIC_LOAD_XOR_I8 : Atomic2Ops32<atomic_load_xor_8, "load_xor_8">;
824 defm ATOMIC_LOAD_XOR_I16 : Atomic2Ops32<atomic_load_xor_16, "load_xor_16">;
825 defm ATOMIC_LOAD_XOR_I32 : Atomic2Ops32<atomic_load_xor_32, "load_xor_32">;
826 defm ATOMIC_LOAD_NAND_I8 : Atomic2Ops32<atomic_load_nand_8, "load_nand_8">;
827 defm ATOMIC_LOAD_NAND_I16 : Atomic2Ops32<atomic_load_nand_16, "load_nand_16">;
828 defm ATOMIC_LOAD_NAND_I32 : Atomic2Ops32<atomic_load_nand_32, "load_nand_32">;
830 defm ATOMIC_SWAP_I8 : Atomic2Ops32<atomic_swap_8, "swap_8">;
831 defm ATOMIC_SWAP_I16 : Atomic2Ops32<atomic_swap_16, "swap_16">;
832 defm ATOMIC_SWAP_I32 : Atomic2Ops32<atomic_swap_32, "swap_32">;
834 defm ATOMIC_CMP_SWAP_I8 : AtomicCmpSwap32<atomic_cmp_swap_8, "8">;
835 defm ATOMIC_CMP_SWAP_I16 : AtomicCmpSwap32<atomic_cmp_swap_16, "16">;
836 defm ATOMIC_CMP_SWAP_I32 : AtomicCmpSwap32<atomic_cmp_swap_32, "32">;
839 //===----------------------------------------------------------------------===//
840 // Instruction definition
841 //===----------------------------------------------------------------------===//
843 //===----------------------------------------------------------------------===//
844 // MipsI Instructions
845 //===----------------------------------------------------------------------===//
847 /// Arithmetic Instructions (ALU Immediate)
848 def ADDiu : ArithLogicI<0x09, "addiu", add, simm16, immSExt16, CPURegs>;
849 def ADDi : ArithOverflowI<0x08, "addi", add, simm16, immSExt16, CPURegs>;
850 def SLTi : SetCC_I<0x0a, "slti", setlt, simm16, immSExt16, CPURegs>;
851 def SLTiu : SetCC_I<0x0b, "sltiu", setult, simm16, immSExt16, CPURegs>;
852 def ANDi : ArithLogicI<0x0c, "andi", and, uimm16, immZExt16, CPURegs>;
853 def ORi : ArithLogicI<0x0d, "ori", or, uimm16, immZExt16, CPURegs>;
854 def XORi : ArithLogicI<0x0e, "xori", xor, uimm16, immZExt16, CPURegs>;
855 def LUi : LoadUpper<0x0f, "lui", CPURegs, uimm16>;
857 /// Arithmetic Instructions (3-Operand, R-Type)
858 def ADDu : ArithLogicR<0x00, 0x21, "addu", add, IIAlu, CPURegs, 1>;
859 def SUBu : ArithLogicR<0x00, 0x23, "subu", sub, IIAlu, CPURegs>;
860 def ADD : ArithOverflowR<0x00, 0x20, "add", IIAlu, CPURegs, 1>;
861 def SUB : ArithOverflowR<0x00, 0x22, "sub", IIAlu, CPURegs>;
862 def SLT : SetCC_R<0x00, 0x2a, "slt", setlt, CPURegs>;
863 def SLTu : SetCC_R<0x00, 0x2b, "sltu", setult, CPURegs>;
864 def AND : ArithLogicR<0x00, 0x24, "and", and, IIAlu, CPURegs, 1>;
865 def OR : ArithLogicR<0x00, 0x25, "or", or, IIAlu, CPURegs, 1>;
866 def XOR : ArithLogicR<0x00, 0x26, "xor", xor, IIAlu, CPURegs, 1>;
867 def NOR : LogicNOR<0x00, 0x27, "nor", CPURegs>;
869 /// Shift Instructions
870 def SLL : shift_rotate_imm32<0x00, 0x00, "sll", shl>;
871 def SRL : shift_rotate_imm32<0x02, 0x00, "srl", srl>;
872 def SRA : shift_rotate_imm32<0x03, 0x00, "sra", sra>;
873 def SLLV : shift_rotate_reg<0x04, 0x00, "sllv", shl, CPURegs>;
874 def SRLV : shift_rotate_reg<0x06, 0x00, "srlv", srl, CPURegs>;
875 def SRAV : shift_rotate_reg<0x07, 0x00, "srav", sra, CPURegs>;
877 // Rotate Instructions
878 let Predicates = [HasMips32r2] in {
879 def ROTR : shift_rotate_imm32<0x02, 0x01, "rotr", rotr>;
880 def ROTRV : shift_rotate_reg<0x06, 0x01, "rotrv", rotr, CPURegs>;
883 /// Load and Store Instructions
885 defm LB : LoadM32<0x20, "lb", sextloadi8>;
886 defm LBu : LoadM32<0x24, "lbu", zextloadi8>;
887 defm LH : LoadM32<0x21, "lh", sextloadi16_a>;
888 defm LHu : LoadM32<0x25, "lhu", zextloadi16_a>;
889 defm LW : LoadM32<0x23, "lw", load_a>;
890 defm SB : StoreM32<0x28, "sb", truncstorei8>;
891 defm SH : StoreM32<0x29, "sh", truncstorei16_a>;
892 defm SW : StoreM32<0x2b, "sw", store_a>;
895 defm ULH : LoadM32<0x21, "ulh", sextloadi16_u, 1>;
896 defm ULHu : LoadM32<0x25, "ulhu", zextloadi16_u, 1>;
897 defm ULW : LoadM32<0x23, "ulw", load_u, 1>;
898 defm USH : StoreM32<0x29, "ush", truncstorei16_u, 1>;
899 defm USW : StoreM32<0x2b, "usw", store_u, 1>;
901 /// Primitives for unaligned
902 defm LWL : LoadUnAlign32<0x22>;
903 defm LWR : LoadUnAlign32<0x26>;
904 defm SWL : StoreUnAlign32<0x2A>;
905 defm SWR : StoreUnAlign32<0x2E>;
907 let hasSideEffects = 1 in
908 def SYNC : MipsInst<(outs), (ins i32imm:$stype), "sync $stype",
909 [(MipsSync imm:$stype)], NoItinerary, FrmOther>
914 let Inst{10-6} = stype;
918 /// Load-linked, Store-conditional
919 def LL : LLBase<0x30, "ll", CPURegs, mem>, Requires<[NotN64]>;
920 def LL_P8 : LLBase<0x30, "ll", CPURegs, mem64>, Requires<[IsN64]> {
921 let DecoderNamespace = "Mips64";
924 def SC : SCBase<0x38, "sc", CPURegs, mem>, Requires<[NotN64]>;
925 def SC_P8 : SCBase<0x38, "sc", CPURegs, mem64>, Requires<[IsN64]> {
926 let DecoderNamespace = "Mips64";
929 /// Jump and Branch Instructions
930 def J : JumpFJ<0x02, "j">;
931 def JR : JumpFR<0x00, 0x08, "jr", CPURegs>;
932 def B : UncondBranch<0x04, "b">;
933 def BEQ : CBranch<0x04, "beq", seteq, CPURegs>;
934 def BNE : CBranch<0x05, "bne", setne, CPURegs>;
935 def BGEZ : CBranchZero<0x01, 1, "bgez", setge, CPURegs>;
936 def BGTZ : CBranchZero<0x07, 0, "bgtz", setgt, CPURegs>;
937 def BLEZ : CBranchZero<0x06, 0, "blez", setle, CPURegs>;
938 def BLTZ : CBranchZero<0x01, 0, "bltz", setlt, CPURegs>;
940 def JAL : JumpLink<0x03, "jal">;
941 def JALR : JumpLinkReg<0x00, 0x09, "jalr", CPURegs>;
942 def BGEZAL : BranchLink<"bgezal", 0x11, CPURegs>;
943 def BLTZAL : BranchLink<"bltzal", 0x10, CPURegs>;
945 let isReturn=1, isTerminator=1, hasDelaySlot=1, isCodeGenOnly=1,
946 isBarrier=1, hasCtrlDep=1, rd=0, rt=0, shamt=0 in
947 def RET : FR <0x00, 0x08, (outs), (ins CPURegs:$target),
948 "jr\t$target", [(MipsRet CPURegs:$target)], IIBranch>;
950 /// Multiply and Divide Instructions.
951 def MULT : Mult32<0x18, "mult", IIImul>;
952 def MULTu : Mult32<0x19, "multu", IIImul>;
953 def SDIV : Div32<MipsDivRem, 0x1a, "div", IIIdiv>;
954 def UDIV : Div32<MipsDivRemU, 0x1b, "divu", IIIdiv>;
956 def MTHI : MoveToLOHI<0x11, "mthi", CPURegs, [HI]>;
957 def MTLO : MoveToLOHI<0x13, "mtlo", CPURegs, [LO]>;
958 def MFHI : MoveFromLOHI<0x10, "mfhi", CPURegs, [HI]>;
959 def MFLO : MoveFromLOHI<0x12, "mflo", CPURegs, [LO]>;
961 /// Sign Ext In Register Instructions.
962 def SEB : SignExtInReg<0x10, "seb", i8, CPURegs>;
963 def SEH : SignExtInReg<0x18, "seh", i16, CPURegs>;
966 def CLZ : CountLeading0<0x20, "clz", CPURegs>;
967 def CLO : CountLeading1<0x21, "clo", CPURegs>;
969 /// Word Swap Bytes Within Halfwords
970 def WSBH : SubwordSwap<0x20, 0x2, "wsbh", CPURegs>;
974 def NOP : FJ<0, (outs), (ins), "nop", [], IIAlu>;
976 // FrameIndexes are legalized when they are operands from load/store
977 // instructions. The same not happens for stack address copies, so an
978 // add op with mem ComplexPattern is used and the stack address copy
979 // can be matched. It's similar to Sparc LEA_ADDRi
980 def LEA_ADDiu : EffectiveAddress<"addiu\t$rt, $addr", CPURegs, mem_ea> {
981 let isCodeGenOnly = 1;
984 // DynAlloc node points to dynamically allocated stack space.
985 // $sp is added to the list of implicitly used registers to prevent dead code
986 // elimination from removing instructions that modify $sp.
988 def DynAlloc : EffectiveAddress<"addiu\t$rt, $addr", CPURegs, mem_ea> {
989 let isCodeGenOnly = 1;
993 def MADD : MArithR<0, "madd", MipsMAdd, 1>;
994 def MADDU : MArithR<1, "maddu", MipsMAddu, 1>;
995 def MSUB : MArithR<4, "msub", MipsMSub>;
996 def MSUBU : MArithR<5, "msubu", MipsMSubu>;
998 // MUL is a assembly macro in the current used ISAs. In recent ISA's
999 // it is a real instruction.
1000 def MUL : ArithLogicR<0x1c, 0x02, "mul", mul, IIImul, CPURegs, 1>,
1001 Requires<[HasMips32]>;
1003 def RDHWR : ReadHardware<CPURegs, HWRegs>;
1005 def EXT : ExtBase<0, "ext", CPURegs>;
1006 def INS : InsBase<4, "ins", CPURegs>;
1008 //===----------------------------------------------------------------------===//
1009 // Arbitrary patterns that map to one or more instructions
1010 //===----------------------------------------------------------------------===//
1013 def : Pat<(i32 immSExt16:$in),
1014 (ADDiu ZERO, imm:$in)>;
1015 def : Pat<(i32 immZExt16:$in),
1016 (ORi ZERO, imm:$in)>;
1017 def : Pat<(i32 immLow16Zero:$in),
1018 (LUi (HI16 imm:$in))>;
1020 // Arbitrary immediates
1021 def : Pat<(i32 imm:$imm),
1022 (ORi (LUi (HI16 imm:$imm)), (LO16 imm:$imm))>;
1025 def : Pat<(subc CPURegs:$lhs, CPURegs:$rhs),
1026 (SUBu CPURegs:$lhs, CPURegs:$rhs)>;
1027 def : Pat<(addc CPURegs:$lhs, CPURegs:$rhs),
1028 (ADDu CPURegs:$lhs, CPURegs:$rhs)>;
1029 def : Pat<(addc CPURegs:$src, immSExt16:$imm),
1030 (ADDiu CPURegs:$src, imm:$imm)>;
1033 def : Pat<(MipsJmpLink (i32 tglobaladdr:$dst)),
1034 (JAL tglobaladdr:$dst)>;
1035 def : Pat<(MipsJmpLink (i32 texternalsym:$dst)),
1036 (JAL texternalsym:$dst)>;
1037 //def : Pat<(MipsJmpLink CPURegs:$dst),
1038 // (JALR CPURegs:$dst)>;
1041 def : Pat<(MipsHi tglobaladdr:$in), (LUi tglobaladdr:$in)>;
1042 def : Pat<(MipsHi tblockaddress:$in), (LUi tblockaddress:$in)>;
1043 def : Pat<(MipsHi tjumptable:$in), (LUi tjumptable:$in)>;
1044 def : Pat<(MipsHi tconstpool:$in), (LUi tconstpool:$in)>;
1045 def : Pat<(MipsHi tglobaltlsaddr:$in), (LUi tglobaltlsaddr:$in)>;
1047 def : Pat<(MipsLo tglobaladdr:$in), (ADDiu ZERO, tglobaladdr:$in)>;
1048 def : Pat<(MipsLo tblockaddress:$in), (ADDiu ZERO, tblockaddress:$in)>;
1049 def : Pat<(MipsLo tjumptable:$in), (ADDiu ZERO, tjumptable:$in)>;
1050 def : Pat<(MipsLo tconstpool:$in), (ADDiu ZERO, tconstpool:$in)>;
1051 def : Pat<(MipsLo tglobaltlsaddr:$in), (ADDiu ZERO, tglobaltlsaddr:$in)>;
1053 def : Pat<(add CPURegs:$hi, (MipsLo tglobaladdr:$lo)),
1054 (ADDiu CPURegs:$hi, tglobaladdr:$lo)>;
1055 def : Pat<(add CPURegs:$hi, (MipsLo tblockaddress:$lo)),
1056 (ADDiu CPURegs:$hi, tblockaddress:$lo)>;
1057 def : Pat<(add CPURegs:$hi, (MipsLo tjumptable:$lo)),
1058 (ADDiu CPURegs:$hi, tjumptable:$lo)>;
1059 def : Pat<(add CPURegs:$hi, (MipsLo tconstpool:$lo)),
1060 (ADDiu CPURegs:$hi, tconstpool:$lo)>;
1061 def : Pat<(add CPURegs:$hi, (MipsLo tglobaltlsaddr:$lo)),
1062 (ADDiu CPURegs:$hi, tglobaltlsaddr:$lo)>;
1065 def : Pat<(add CPURegs:$gp, (MipsGPRel tglobaladdr:$in)),
1066 (ADDiu CPURegs:$gp, tglobaladdr:$in)>;
1067 def : Pat<(add CPURegs:$gp, (MipsGPRel tconstpool:$in)),
1068 (ADDiu CPURegs:$gp, tconstpool:$in)>;
1071 class WrapperPat<SDNode node, Instruction ADDiuOp, RegisterClass RC>:
1072 Pat<(MipsWrapper RC:$gp, node:$in),
1073 (ADDiuOp RC:$gp, node:$in)>;
1075 def : WrapperPat<tglobaladdr, ADDiu, CPURegs>;
1076 def : WrapperPat<tconstpool, ADDiu, CPURegs>;
1077 def : WrapperPat<texternalsym, ADDiu, CPURegs>;
1078 def : WrapperPat<tblockaddress, ADDiu, CPURegs>;
1079 def : WrapperPat<tjumptable, ADDiu, CPURegs>;
1080 def : WrapperPat<tglobaltlsaddr, ADDiu, CPURegs>;
1082 // Mips does not have "not", so we expand our way
1083 def : Pat<(not CPURegs:$in),
1084 (NOR CPURegs:$in, ZERO)>;
1087 let Predicates = [NotN64] in {
1088 def : Pat<(i32 (extloadi1 addr:$src)), (LBu addr:$src)>;
1089 def : Pat<(i32 (extloadi8 addr:$src)), (LBu addr:$src)>;
1090 def : Pat<(i32 (extloadi16_a addr:$src)), (LHu addr:$src)>;
1091 def : Pat<(i32 (extloadi16_u addr:$src)), (ULHu addr:$src)>;
1093 let Predicates = [IsN64] in {
1094 def : Pat<(i32 (extloadi1 addr:$src)), (LBu_P8 addr:$src)>;
1095 def : Pat<(i32 (extloadi8 addr:$src)), (LBu_P8 addr:$src)>;
1096 def : Pat<(i32 (extloadi16_a addr:$src)), (LHu_P8 addr:$src)>;
1097 def : Pat<(i32 (extloadi16_u addr:$src)), (ULHu_P8 addr:$src)>;
1101 let Predicates = [NotN64] in {
1102 def : Pat<(store_a (i32 0), addr:$dst), (SW ZERO, addr:$dst)>;
1103 def : Pat<(store_u (i32 0), addr:$dst), (USW ZERO, addr:$dst)>;
1105 let Predicates = [IsN64] in {
1106 def : Pat<(store_a (i32 0), addr:$dst), (SW_P8 ZERO, addr:$dst)>;
1107 def : Pat<(store_u (i32 0), addr:$dst), (USW_P8 ZERO, addr:$dst)>;
1111 multiclass BrcondPats<RegisterClass RC, Instruction BEQOp, Instruction BNEOp,
1112 Instruction SLTOp, Instruction SLTuOp, Instruction SLTiOp,
1113 Instruction SLTiuOp, Register ZEROReg> {
1114 def : Pat<(brcond (i32 (setne RC:$lhs, 0)), bb:$dst),
1115 (BNEOp RC:$lhs, ZEROReg, bb:$dst)>;
1116 def : Pat<(brcond (i32 (seteq RC:$lhs, 0)), bb:$dst),
1117 (BEQOp RC:$lhs, ZEROReg, bb:$dst)>;
1119 def : Pat<(brcond (i32 (setge RC:$lhs, RC:$rhs)), bb:$dst),
1120 (BEQ (SLTOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>;
1121 def : Pat<(brcond (i32 (setuge RC:$lhs, RC:$rhs)), bb:$dst),
1122 (BEQ (SLTuOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>;
1123 def : Pat<(brcond (i32 (setge RC:$lhs, immSExt16:$rhs)), bb:$dst),
1124 (BEQ (SLTiOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
1125 def : Pat<(brcond (i32 (setuge RC:$lhs, immSExt16:$rhs)), bb:$dst),
1126 (BEQ (SLTiuOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
1128 def : Pat<(brcond (i32 (setle RC:$lhs, RC:$rhs)), bb:$dst),
1129 (BEQ (SLTOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>;
1130 def : Pat<(brcond (i32 (setule RC:$lhs, RC:$rhs)), bb:$dst),
1131 (BEQ (SLTuOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>;
1133 def : Pat<(brcond RC:$cond, bb:$dst),
1134 (BNEOp RC:$cond, ZEROReg, bb:$dst)>;
1137 defm : BrcondPats<CPURegs, BEQ, BNE, SLT, SLTu, SLTi, SLTiu, ZERO>;
1140 multiclass SeteqPats<RegisterClass RC, Instruction SLTiuOp, Instruction XOROp,
1141 Instruction SLTuOp, Register ZEROReg> {
1142 def : Pat<(seteq RC:$lhs, RC:$rhs),
1143 (SLTiuOp (XOROp RC:$lhs, RC:$rhs), 1)>;
1144 def : Pat<(setne RC:$lhs, RC:$rhs),
1145 (SLTuOp ZEROReg, (XOROp RC:$lhs, RC:$rhs))>;
1148 multiclass SetlePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1149 def : Pat<(setle RC:$lhs, RC:$rhs),
1150 (XORi (SLTOp RC:$rhs, RC:$lhs), 1)>;
1151 def : Pat<(setule RC:$lhs, RC:$rhs),
1152 (XORi (SLTuOp RC:$rhs, RC:$lhs), 1)>;
1155 multiclass SetgtPats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1156 def : Pat<(setgt RC:$lhs, RC:$rhs),
1157 (SLTOp RC:$rhs, RC:$lhs)>;
1158 def : Pat<(setugt RC:$lhs, RC:$rhs),
1159 (SLTuOp RC:$rhs, RC:$lhs)>;
1162 multiclass SetgePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> {
1163 def : Pat<(setge RC:$lhs, RC:$rhs),
1164 (XORi (SLTOp RC:$lhs, RC:$rhs), 1)>;
1165 def : Pat<(setuge RC:$lhs, RC:$rhs),
1166 (XORi (SLTuOp RC:$lhs, RC:$rhs), 1)>;
1169 multiclass SetgeImmPats<RegisterClass RC, Instruction SLTiOp,
1170 Instruction SLTiuOp> {
1171 def : Pat<(setge RC:$lhs, immSExt16:$rhs),
1172 (XORi (SLTiOp RC:$lhs, immSExt16:$rhs), 1)>;
1173 def : Pat<(setuge RC:$lhs, immSExt16:$rhs),
1174 (XORi (SLTiuOp RC:$lhs, immSExt16:$rhs), 1)>;
1177 defm : SeteqPats<CPURegs, SLTiu, XOR, SLTu, ZERO>;
1178 defm : SetlePats<CPURegs, SLT, SLTu>;
1179 defm : SetgtPats<CPURegs, SLT, SLTu>;
1180 defm : SetgePats<CPURegs, SLT, SLTu>;
1181 defm : SetgeImmPats<CPURegs, SLTi, SLTiu>;
1183 // select MipsDynAlloc
1184 def : Pat<(MipsDynAlloc addr:$f), (DynAlloc addr:$f)>;
1187 def : Pat<(bswap CPURegs:$rt), (ROTR (WSBH CPURegs:$rt), 16)>;
1189 //===----------------------------------------------------------------------===//
1190 // Floating Point Support
1191 //===----------------------------------------------------------------------===//
1193 include "MipsInstrFPU.td"
1194 include "Mips64InstrInfo.td"
1195 include "MipsCondMov.td"