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, i32>,
44 def SDT_Sync : SDTypeProfile<0, 1, [SDTCisVT<0, i32>]>;
47 def MipsJmpLink : SDNode<"MipsISD::JmpLink",SDT_MipsJmpLink,
48 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
51 // Hi and Lo nodes are used to handle global addresses. Used on
52 // MipsISelLowering to lower stuff like GlobalAddress, ExternalSymbol
53 // static model. (nothing to do with Mips Registers Hi and Lo)
54 def MipsHi : SDNode<"MipsISD::Hi", SDTIntUnaryOp>;
55 def MipsLo : SDNode<"MipsISD::Lo", SDTIntUnaryOp>;
56 def MipsGPRel : SDNode<"MipsISD::GPRel", SDTIntUnaryOp>;
58 // TlsGd node is used to handle General Dynamic TLS
59 def MipsTlsGd : SDNode<"MipsISD::TlsGd", SDTIntUnaryOp>;
61 // TprelHi and TprelLo nodes are used to handle Local Exec TLS
62 def MipsTprelHi : SDNode<"MipsISD::TprelHi", SDTIntUnaryOp>;
63 def MipsTprelLo : SDNode<"MipsISD::TprelLo", SDTIntUnaryOp>;
66 def MipsThreadPointer: SDNode<"MipsISD::ThreadPointer", SDT_MipsThreadPointer>;
69 def MipsRet : SDNode<"MipsISD::Ret", SDT_MipsRet, [SDNPHasChain,
72 // These are target-independent nodes, but have target-specific formats.
73 def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_MipsCallSeqStart,
74 [SDNPHasChain, SDNPOutGlue]>;
75 def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_MipsCallSeqEnd,
76 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
79 def MipsMAdd : SDNode<"MipsISD::MAdd", SDT_MipsMAddMSub,
80 [SDNPOptInGlue, SDNPOutGlue]>;
81 def MipsMAddu : SDNode<"MipsISD::MAddu", SDT_MipsMAddMSub,
82 [SDNPOptInGlue, SDNPOutGlue]>;
83 def MipsMSub : SDNode<"MipsISD::MSub", SDT_MipsMAddMSub,
84 [SDNPOptInGlue, SDNPOutGlue]>;
85 def MipsMSubu : SDNode<"MipsISD::MSubu", SDT_MipsMAddMSub,
86 [SDNPOptInGlue, SDNPOutGlue]>;
89 def MipsDivRem : SDNode<"MipsISD::DivRem", SDT_MipsDivRem,
91 def MipsDivRemU : SDNode<"MipsISD::DivRemU", SDT_MipsDivRem,
94 // Target constant nodes that are not part of any isel patterns and remain
95 // unchanged can cause instructions with illegal operands to be emitted.
96 // Wrapper node patterns give the instruction selector a chance to replace
97 // target constant nodes that would otherwise remain unchanged with ADDiu
98 // nodes. Without these wrapper node patterns, the following conditional move
99 // instrucion is emitted when function cmov2 in test/CodeGen/Mips/cmov.ll is
101 // movn %got(d)($gp), %got(c)($gp), $4
102 // This instruction is illegal since movn can take only register operands.
104 def MipsWrapperPIC : SDNode<"MipsISD::WrapperPIC", SDTIntUnaryOp>;
106 // Pointer to dynamically allocated stack area.
107 def MipsDynAlloc : SDNode<"MipsISD::DynAlloc", SDT_MipsDynAlloc,
108 [SDNPHasChain, SDNPInGlue]>;
110 def MipsSync : SDNode<"MipsISD::Sync", SDT_Sync, [SDNPHasChain]>;
112 //===----------------------------------------------------------------------===//
113 // Mips Instruction Predicate Definitions.
114 //===----------------------------------------------------------------------===//
115 def HasSEInReg : Predicate<"Subtarget.hasSEInReg()">;
116 def HasBitCount : Predicate<"Subtarget.hasBitCount()">;
117 def HasSwap : Predicate<"Subtarget.hasSwap()">;
118 def HasCondMov : Predicate<"Subtarget.hasCondMov()">;
119 def IsMips32 : Predicate<"Subtarget.isMips32()">;
120 def IsMips32r2 : Predicate<"Subtarget.isMips32r2()">;
122 //===----------------------------------------------------------------------===//
123 // Mips Operand, Complex Patterns and Transformations Definitions.
124 //===----------------------------------------------------------------------===//
126 // Instruction operand types
127 def brtarget : Operand<OtherVT>;
128 def calltarget : Operand<i32>;
129 def simm16 : Operand<i32>;
130 def shamt : Operand<i32>;
133 def uimm16 : Operand<i32> {
134 let PrintMethod = "printUnsignedImm";
138 def mem : Operand<i32> {
139 let PrintMethod = "printMemOperand";
140 let MIOperandInfo = (ops CPURegs, simm16);
143 def mem_ea : Operand<i32> {
144 let PrintMethod = "printMemOperandEA";
145 let MIOperandInfo = (ops CPURegs, simm16);
148 // Transformation Function - get the lower 16 bits.
149 def LO16 : SDNodeXForm<imm, [{
150 return getI32Imm((unsigned)N->getZExtValue() & 0xFFFF);
153 // Transformation Function - get the higher 16 bits.
154 def HI16 : SDNodeXForm<imm, [{
155 return getI32Imm((unsigned)N->getZExtValue() >> 16);
158 // Node immediate fits as 16-bit sign extended on target immediate.
160 def immSExt16 : PatLeaf<(imm), [{ return isInt<16>(N->getSExtValue()); }]>;
162 // Node immediate fits as 16-bit zero extended on target immediate.
163 // The LO16 param means that only the lower 16 bits of the node
164 // immediate are caught.
166 def immZExt16 : PatLeaf<(imm), [{
167 if (N->getValueType(0) == MVT::i32)
168 return (uint32_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
170 return (uint64_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
173 // shamt field must fit in 5 bits.
174 def immZExt5 : PatLeaf<(imm), [{
175 return N->getZExtValue() == ((N->getZExtValue()) & 0x1f) ;
178 // Mips Address Mode! SDNode frameindex could possibily be a match
179 // since load and store instructions from stack used it.
180 def addr : ComplexPattern<iPTR, 2, "SelectAddr", [frameindex], []>;
182 //===----------------------------------------------------------------------===//
183 // Instructions specific format
184 //===----------------------------------------------------------------------===//
186 // Arithmetic 3 register operands
187 class ArithR<bits<6> op, bits<6> func, string instr_asm, SDNode OpNode,
188 InstrItinClass itin, bit isComm = 0>:
189 FR<op, func, (outs CPURegs:$dst), (ins CPURegs:$b, CPURegs:$c),
190 !strconcat(instr_asm, "\t$dst, $b, $c"),
191 [(set CPURegs:$dst, (OpNode CPURegs:$b, CPURegs:$c))], itin> {
192 let isCommutable = isComm;
195 class ArithOverflowR<bits<6> op, bits<6> func, string instr_asm,
197 FR<op, func, (outs CPURegs:$dst), (ins CPURegs:$b, CPURegs:$c),
198 !strconcat(instr_asm, "\t$dst, $b, $c"), [], IIAlu> {
199 let isCommutable = isComm;
202 // Arithmetic 2 register operands
203 class ArithI<bits<6> op, string instr_asm, SDNode OpNode,
204 Operand Od, PatLeaf imm_type> :
205 FI<op, (outs CPURegs:$dst), (ins CPURegs:$b, Od:$c),
206 !strconcat(instr_asm, "\t$dst, $b, $c"),
207 [(set CPURegs:$dst, (OpNode CPURegs:$b, imm_type:$c))], IIAlu>;
209 class ArithOverflowI<bits<6> op, string instr_asm, SDNode OpNode,
210 Operand Od, PatLeaf imm_type> :
211 FI<op, (outs CPURegs:$dst), (ins CPURegs:$b, Od:$c),
212 !strconcat(instr_asm, "\t$dst, $b, $c"), [], IIAlu>;
214 // Arithmetic Multiply ADD/SUB
215 let rd = 0, shamt = 0, Defs = [HI, LO], Uses = [HI, LO] in
216 class MArithR<bits<6> func, string instr_asm, SDNode op, bit isComm = 0> :
217 FR<0x1c, func, (outs), (ins CPURegs:$rs, CPURegs:$rt),
218 !strconcat(instr_asm, "\t$rs, $rt"),
219 [(op CPURegs:$rs, CPURegs:$rt, LO, HI)], IIImul> {
220 let isCommutable = isComm;
224 let isCommutable = 1 in
225 class LogicR<bits<6> func, string instr_asm, SDNode OpNode>:
226 FR<0x00, func, (outs CPURegs:$dst), (ins CPURegs:$b, CPURegs:$c),
227 !strconcat(instr_asm, "\t$dst, $b, $c"),
228 [(set CPURegs:$dst, (OpNode CPURegs:$b, CPURegs:$c))], IIAlu>;
230 class LogicI<bits<6> op, string instr_asm, SDNode OpNode>:
231 FI<op, (outs CPURegs:$dst), (ins CPURegs:$b, uimm16:$c),
232 !strconcat(instr_asm, "\t$dst, $b, $c"),
233 [(set CPURegs:$dst, (OpNode CPURegs:$b, immZExt16:$c))], IIAlu>;
235 let isCommutable = 1 in
236 class LogicNOR<bits<6> op, bits<6> func, string instr_asm>:
237 FR<op, func, (outs CPURegs:$dst), (ins CPURegs:$b, CPURegs:$c),
238 !strconcat(instr_asm, "\t$dst, $b, $c"),
239 [(set CPURegs:$dst, (not (or CPURegs:$b, CPURegs:$c)))], IIAlu>;
242 class LogicR_shift_rotate_imm<bits<6> func, bits<5> _rs, string instr_asm,
244 FR<0x00, func, (outs CPURegs:$dst), (ins CPURegs:$b, shamt:$c),
245 !strconcat(instr_asm, "\t$dst, $b, $c"),
246 [(set CPURegs:$dst, (OpNode CPURegs:$b, immZExt5:$c))], IIAlu> {
250 class LogicR_shift_rotate_reg<bits<6> func, bits<5> _shamt, string instr_asm,
252 FR<0x00, func, (outs CPURegs:$dst), (ins CPURegs:$c, CPURegs:$b),
253 !strconcat(instr_asm, "\t$dst, $b, $c"),
254 [(set CPURegs:$dst, (OpNode CPURegs:$b, CPURegs:$c))], IIAlu> {
258 // Load Upper Imediate
259 class LoadUpper<bits<6> op, string instr_asm>:
263 !strconcat(instr_asm, "\t$dst, $imm"),
267 let canFoldAsLoad = 1, hasDelaySlot = 1 in
268 class LoadM<bits<6> op, string instr_asm, PatFrag OpNode>:
269 FI<op, (outs CPURegs:$dst), (ins mem:$addr),
270 !strconcat(instr_asm, "\t$dst, $addr"),
271 [(set CPURegs:$dst, (OpNode addr:$addr))], IILoad>;
273 class StoreM<bits<6> op, string instr_asm, PatFrag OpNode>:
274 FI<op, (outs), (ins CPURegs:$dst, mem:$addr),
275 !strconcat(instr_asm, "\t$dst, $addr"),
276 [(OpNode CPURegs:$dst, addr:$addr)], IIStore>;
278 // Conditional Branch
279 let isBranch = 1, isTerminator=1, hasDelaySlot = 1 in {
280 class CBranch<bits<6> op, string instr_asm, PatFrag cond_op>:
281 FI<op, (outs), (ins CPURegs:$a, CPURegs:$b, brtarget:$offset),
282 !strconcat(instr_asm, "\t$a, $b, $offset"),
283 [(brcond (cond_op CPURegs:$a, CPURegs:$b), bb:$offset)],
286 class CBranchZero<bits<6> op, string instr_asm, PatFrag cond_op>:
287 FI<op, (outs), (ins CPURegs:$src, brtarget:$offset),
288 !strconcat(instr_asm, "\t$src, $offset"),
289 [(brcond (cond_op CPURegs:$src, 0), bb:$offset)],
294 class SetCC_R<bits<6> op, bits<6> func, string instr_asm,
296 FR<op, func, (outs CPURegs:$dst), (ins CPURegs:$b, CPURegs:$c),
297 !strconcat(instr_asm, "\t$dst, $b, $c"),
298 [(set CPURegs:$dst, (cond_op CPURegs:$b, CPURegs:$c))],
301 class SetCC_I<bits<6> op, string instr_asm, PatFrag cond_op,
302 Operand Od, PatLeaf imm_type>:
303 FI<op, (outs CPURegs:$dst), (ins CPURegs:$b, Od:$c),
304 !strconcat(instr_asm, "\t$dst, $b, $c"),
305 [(set CPURegs:$dst, (cond_op CPURegs:$b, imm_type:$c))],
308 // Unconditional branch
309 let isBranch=1, isTerminator=1, isBarrier=1, hasDelaySlot = 1 in
310 class JumpFJ<bits<6> op, string instr_asm>:
311 FJ<op, (outs), (ins brtarget:$target),
312 !strconcat(instr_asm, "\t$target"), [(br bb:$target)], IIBranch>;
314 let isBranch=1, isTerminator=1, isBarrier=1, rd=0, hasDelaySlot = 1 in
315 class JumpFR<bits<6> op, bits<6> func, string instr_asm>:
316 FR<op, func, (outs), (ins CPURegs:$target),
317 !strconcat(instr_asm, "\t$target"), [(brind CPURegs:$target)], IIBranch>;
319 // Jump and Link (Call)
320 let isCall=1, hasDelaySlot=1,
321 // All calls clobber the non-callee saved registers...
322 Defs = [AT, V0, V1, A0, A1, A2, A3, T0, T1, T2, T3, T4, T5, T6, T7, T8, T9,
323 K0, K1, D0, D1, D2, D3, D4, D5, D6, D7, D8, D9], Uses = [GP] in {
324 class JumpLink<bits<6> op, string instr_asm>:
325 FJ<op, (outs), (ins calltarget:$target, variable_ops),
326 !strconcat(instr_asm, "\t$target"), [(MipsJmpLink imm:$target)],
330 class JumpLinkReg<bits<6> op, bits<6> func, string instr_asm>:
331 FR<op, func, (outs), (ins CPURegs:$rs, variable_ops),
332 !strconcat(instr_asm, "\t$rs"), [(MipsJmpLink CPURegs:$rs)], IIBranch>;
334 class BranchLink<string instr_asm>:
335 FI<0x1, (outs), (ins CPURegs:$rs, brtarget:$target, variable_ops),
336 !strconcat(instr_asm, "\t$rs, $target"), [], IIBranch>;
340 let Defs = [HI, LO] in {
341 let isCommutable = 1 in
342 class Mul<bits<6> func, string instr_asm, InstrItinClass itin>:
343 FR<0x00, func, (outs), (ins CPURegs:$a, CPURegs:$b),
344 !strconcat(instr_asm, "\t$a, $b"), [], itin>;
346 class Div<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin>:
347 FR<0x00, func, (outs), (ins CPURegs:$a, CPURegs:$b),
348 !strconcat(instr_asm, "\t$$zero, $a, $b"),
349 [(op CPURegs:$a, CPURegs:$b)], itin>;
353 class MoveFromLOHI<bits<6> func, string instr_asm>:
354 FR<0x00, func, (outs CPURegs:$dst), (ins),
355 !strconcat(instr_asm, "\t$dst"), [], IIHiLo>;
357 class MoveToLOHI<bits<6> func, string instr_asm>:
358 FR<0x00, func, (outs), (ins CPURegs:$src),
359 !strconcat(instr_asm, "\t$src"), [], IIHiLo>;
361 class EffectiveAddress<string instr_asm> :
362 FI<0x09, (outs CPURegs:$dst), (ins mem_ea:$addr),
363 instr_asm, [(set CPURegs:$dst, addr:$addr)], IIAlu>;
365 // Count Leading Ones/Zeros in Word
366 class CountLeading<bits<6> func, string instr_asm, list<dag> pattern>:
367 FR<0x1c, func, (outs CPURegs:$dst), (ins CPURegs:$src),
368 !strconcat(instr_asm, "\t$dst, $src"), pattern, IIAlu>,
369 Requires<[HasBitCount]> {
374 // Sign Extend in Register.
375 class SignExtInReg<bits<6> func, string instr_asm, ValueType vt>:
376 FR<0x3f, func, (outs CPURegs:$dst), (ins CPURegs:$src),
377 !strconcat(instr_asm, "\t$dst, $src"),
378 [(set CPURegs:$dst, (sext_inreg CPURegs:$src, vt))], NoItinerary>;
381 class ByteSwap<bits<6> func, string instr_asm>:
382 FR<0x1f, func, (outs CPURegs:$dst), (ins CPURegs:$src),
383 !strconcat(instr_asm, "\t$dst, $src"),
384 [(set CPURegs:$dst, (bswap CPURegs:$src))], NoItinerary>;
387 class CondMov<bits<6> func, string instr_asm, PatLeaf MovCode>:
388 FR<0x00, func, (outs CPURegs:$dst), (ins CPURegs:$F, CPURegs:$T,
389 CPURegs:$cond), !strconcat(instr_asm, "\t$dst, $T, $cond"),
393 class ReadHardware: FR<0x1f, 0x3b, (outs CPURegs:$dst), (ins HWRegs:$src),
394 "rdhwr\t$dst, $src", [], IIAlu> {
399 // Atomic instructions with 2 source operands (ATOMIC_SWAP & ATOMIC_LOAD_*).
400 class Atomic2Ops<PatFrag Op, string Opstr> :
401 MipsPseudo<(outs CPURegs:$dst), (ins CPURegs:$ptr, CPURegs:$incr),
402 !strconcat("atomic_", Opstr, "\t$dst, $ptr, $incr"),
404 (Op CPURegs:$ptr, CPURegs:$incr))]>;
406 // Atomic Compare & Swap.
407 class AtomicCmpSwap<PatFrag Op, string Width> :
408 MipsPseudo<(outs CPURegs:$dst),
409 (ins CPURegs:$ptr, CPURegs:$cmp, CPURegs:$swap),
410 !strconcat("atomic_cmp_swap_", Width,
411 "\t$dst, $ptr, $cmp, $swap"),
413 (Op CPURegs:$ptr, CPURegs:$cmp, CPURegs:$swap))]>;
415 //===----------------------------------------------------------------------===//
416 // Pseudo instructions
417 //===----------------------------------------------------------------------===//
419 // As stack alignment is always done with addiu, we need a 16-bit immediate
420 let Defs = [SP], Uses = [SP] in {
421 def ADJCALLSTACKDOWN : MipsPseudo<(outs), (ins uimm16:$amt),
422 "!ADJCALLSTACKDOWN $amt",
423 [(callseq_start timm:$amt)]>;
424 def ADJCALLSTACKUP : MipsPseudo<(outs), (ins uimm16:$amt1, uimm16:$amt2),
425 "!ADJCALLSTACKUP $amt1",
426 [(callseq_end timm:$amt1, timm:$amt2)]>;
429 // Some assembly macros need to avoid pseudoinstructions and assembler
430 // automatic reodering, we should reorder ourselves.
431 def MACRO : MipsPseudo<(outs), (ins), ".set\tmacro", []>;
432 def REORDER : MipsPseudo<(outs), (ins), ".set\treorder", []>;
433 def NOMACRO : MipsPseudo<(outs), (ins), ".set\tnomacro", []>;
434 def NOREORDER : MipsPseudo<(outs), (ins), ".set\tnoreorder", []>;
436 // These macros are inserted to prevent GAS from complaining
437 // when using the AT register.
438 def NOAT : MipsPseudo<(outs), (ins), ".set\tnoat", []>;
439 def ATMACRO : MipsPseudo<(outs), (ins), ".set\tat", []>;
441 // When handling PIC code the assembler needs .cpload and .cprestore
442 // directives. If the real instructions corresponding these directives
443 // are used, we have the same behavior, but get also a bunch of warnings
444 // from the assembler.
445 def CPLOAD : MipsPseudo<(outs), (ins CPURegs:$picreg), ".cpload\t$picreg", []>;
446 def CPRESTORE : MipsPseudo<(outs), (ins i32imm:$loc), ".cprestore\t$loc", []>;
448 let usesCustomInserter = 1 in {
449 def ATOMIC_LOAD_ADD_I8 : Atomic2Ops<atomic_load_add_8, "load_add_8">;
450 def ATOMIC_LOAD_ADD_I16 : Atomic2Ops<atomic_load_add_16, "load_add_16">;
451 def ATOMIC_LOAD_ADD_I32 : Atomic2Ops<atomic_load_add_32, "load_add_32">;
452 def ATOMIC_LOAD_SUB_I8 : Atomic2Ops<atomic_load_sub_8, "load_sub_8">;
453 def ATOMIC_LOAD_SUB_I16 : Atomic2Ops<atomic_load_sub_16, "load_sub_16">;
454 def ATOMIC_LOAD_SUB_I32 : Atomic2Ops<atomic_load_sub_32, "load_sub_32">;
455 def ATOMIC_LOAD_AND_I8 : Atomic2Ops<atomic_load_and_8, "load_and_8">;
456 def ATOMIC_LOAD_AND_I16 : Atomic2Ops<atomic_load_and_16, "load_and_16">;
457 def ATOMIC_LOAD_AND_I32 : Atomic2Ops<atomic_load_and_32, "load_and_32">;
458 def ATOMIC_LOAD_OR_I8 : Atomic2Ops<atomic_load_or_8, "load_or_8">;
459 def ATOMIC_LOAD_OR_I16 : Atomic2Ops<atomic_load_or_16, "load_or_16">;
460 def ATOMIC_LOAD_OR_I32 : Atomic2Ops<atomic_load_or_32, "load_or_32">;
461 def ATOMIC_LOAD_XOR_I8 : Atomic2Ops<atomic_load_xor_8, "load_xor_8">;
462 def ATOMIC_LOAD_XOR_I16 : Atomic2Ops<atomic_load_xor_16, "load_xor_16">;
463 def ATOMIC_LOAD_XOR_I32 : Atomic2Ops<atomic_load_xor_32, "load_xor_32">;
464 def ATOMIC_LOAD_NAND_I8 : Atomic2Ops<atomic_load_nand_8, "load_nand_8">;
465 def ATOMIC_LOAD_NAND_I16 : Atomic2Ops<atomic_load_nand_16, "load_nand_16">;
466 def ATOMIC_LOAD_NAND_I32 : Atomic2Ops<atomic_load_nand_32, "load_nand_32">;
468 def ATOMIC_SWAP_I8 : Atomic2Ops<atomic_swap_8, "swap_8">;
469 def ATOMIC_SWAP_I16 : Atomic2Ops<atomic_swap_16, "swap_16">;
470 def ATOMIC_SWAP_I32 : Atomic2Ops<atomic_swap_32, "swap_32">;
472 def ATOMIC_CMP_SWAP_I8 : AtomicCmpSwap<atomic_cmp_swap_8, "8">;
473 def ATOMIC_CMP_SWAP_I16 : AtomicCmpSwap<atomic_cmp_swap_16, "16">;
474 def ATOMIC_CMP_SWAP_I32 : AtomicCmpSwap<atomic_cmp_swap_32, "32">;
477 // Unaligned memory load and store.
478 // Replaces LW or SW during MCInstLowering if memory access is unaligned.
480 MipsPseudo<(outs CPURegs:$dst), (ins mem:$addr), "ulw\t$dst, $addr", []>;
482 MipsPseudo<(outs), (ins CPURegs:$dst, mem:$addr), "usw\t$dst, $addr", []>;
484 //===----------------------------------------------------------------------===//
485 // Instruction definition
486 //===----------------------------------------------------------------------===//
488 //===----------------------------------------------------------------------===//
489 // MipsI Instructions
490 //===----------------------------------------------------------------------===//
492 /// Arithmetic Instructions (ALU Immediate)
493 def ADDiu : ArithI<0x09, "addiu", add, simm16, immSExt16>;
494 def ADDi : ArithOverflowI<0x08, "addi", add, simm16, immSExt16>;
495 def SLTi : SetCC_I<0x0a, "slti", setlt, simm16, immSExt16>;
496 def SLTiu : SetCC_I<0x0b, "sltiu", setult, simm16, immSExt16>;
497 def ANDi : LogicI<0x0c, "andi", and>;
498 def ORi : LogicI<0x0d, "ori", or>;
499 def XORi : LogicI<0x0e, "xori", xor>;
500 def LUi : LoadUpper<0x0f, "lui">;
502 /// Arithmetic Instructions (3-Operand, R-Type)
503 def ADDu : ArithR<0x00, 0x21, "addu", add, IIAlu, 1>;
504 def SUBu : ArithR<0x00, 0x23, "subu", sub, IIAlu>;
505 def ADD : ArithOverflowR<0x00, 0x20, "add", 1>;
506 def SUB : ArithOverflowR<0x00, 0x22, "sub">;
507 def SLT : SetCC_R<0x00, 0x2a, "slt", setlt>;
508 def SLTu : SetCC_R<0x00, 0x2b, "sltu", setult>;
509 def AND : LogicR<0x24, "and", and>;
510 def OR : LogicR<0x25, "or", or>;
511 def XOR : LogicR<0x26, "xor", xor>;
512 def NOR : LogicNOR<0x00, 0x27, "nor">;
514 /// Shift Instructions
515 def SLL : LogicR_shift_rotate_imm<0x00, 0x00, "sll", shl>;
516 def SRL : LogicR_shift_rotate_imm<0x02, 0x00, "srl", srl>;
517 def SRA : LogicR_shift_rotate_imm<0x03, 0x00, "sra", sra>;
518 def SLLV : LogicR_shift_rotate_reg<0x04, 0x00, "sllv", shl>;
519 def SRLV : LogicR_shift_rotate_reg<0x06, 0x00, "srlv", srl>;
520 def SRAV : LogicR_shift_rotate_reg<0x07, 0x00, "srav", sra>;
522 // Rotate Instructions
523 let Predicates = [IsMips32r2] in {
524 def ROTR : LogicR_shift_rotate_imm<0x02, 0x01, "rotr", rotr>;
525 def ROTRV : LogicR_shift_rotate_reg<0x06, 0x01, "rotrv", rotr>;
528 /// Load and Store Instructions
529 def LB : LoadM<0x20, "lb", sextloadi8>;
530 def LBu : LoadM<0x24, "lbu", zextloadi8>;
531 def LH : LoadM<0x21, "lh", sextloadi16>;
532 def LHu : LoadM<0x25, "lhu", zextloadi16>;
533 def LW : LoadM<0x23, "lw", load>;
534 def SB : StoreM<0x28, "sb", truncstorei8>;
535 def SH : StoreM<0x29, "sh", truncstorei16>;
536 def SW : StoreM<0x2b, "sw", store>;
538 let hasSideEffects = 1 in
539 def SYNC : MipsInst<(outs), (ins i32imm:$stype), "sync $stype",
540 [(MipsSync imm:$stype)], NoItinerary>
547 /// Load-linked, Store-conditional
548 let mayLoad = 1, hasDelaySlot = 1 in
549 def LL : FI<0x30, (outs CPURegs:$dst), (ins mem:$addr),
550 "ll\t$dst, $addr", [], IILoad>;
551 let mayStore = 1, Constraints = "$src = $dst" in
552 def SC : FI<0x38, (outs CPURegs:$dst), (ins CPURegs:$src, mem:$addr),
553 "sc\t$src, $addr", [], IIStore>;
555 /// Jump and Branch Instructions
556 def J : JumpFJ<0x02, "j">;
557 let isIndirectBranch = 1 in
558 def JR : JumpFR<0x00, 0x08, "jr">;
559 def JAL : JumpLink<0x03, "jal">;
560 def JALR : JumpLinkReg<0x00, 0x09, "jalr">;
561 def BEQ : CBranch<0x04, "beq", seteq>;
562 def BNE : CBranch<0x05, "bne", setne>;
565 def BGEZ : CBranchZero<0x01, "bgez", setge>;
568 def BGTZ : CBranchZero<0x07, "bgtz", setgt>;
569 def BLEZ : CBranchZero<0x07, "blez", setle>;
570 def BLTZ : CBranchZero<0x01, "bltz", setlt>;
573 def BGEZAL : BranchLink<"bgezal">;
574 def BLTZAL : BranchLink<"bltzal">;
576 let isReturn=1, isTerminator=1, hasDelaySlot=1,
577 isBarrier=1, hasCtrlDep=1, rs=0, rt=0, shamt=0 in
578 def RET : FR <0x00, 0x02, (outs), (ins CPURegs:$target),
579 "jr\t$target", [(MipsRet CPURegs:$target)], IIBranch>;
581 /// Multiply and Divide Instructions.
582 def MULT : Mul<0x18, "mult", IIImul>;
583 def MULTu : Mul<0x19, "multu", IIImul>;
584 def SDIV : Div<MipsDivRem, 0x1a, "div", IIIdiv>;
585 def UDIV : Div<MipsDivRemU, 0x1b, "divu", IIIdiv>;
588 def MTHI : MoveToLOHI<0x11, "mthi">;
590 def MTLO : MoveToLOHI<0x13, "mtlo">;
593 def MFHI : MoveFromLOHI<0x10, "mfhi">;
595 def MFLO : MoveFromLOHI<0x12, "mflo">;
597 /// Sign Ext In Register Instructions.
598 let Predicates = [HasSEInReg] in {
599 let shamt = 0x10, rs = 0 in
600 def SEB : SignExtInReg<0x21, "seb", i8>;
602 let shamt = 0x18, rs = 0 in
603 def SEH : SignExtInReg<0x20, "seh", i16>;
607 def CLZ : CountLeading<0b100000, "clz",
608 [(set CPURegs:$dst, (ctlz CPURegs:$src))]>;
609 def CLO : CountLeading<0b100001, "clo",
610 [(set CPURegs:$dst, (ctlz (not CPURegs:$src)))]>;
613 let Predicates = [HasSwap] in {
614 let shamt = 0x3, rs = 0 in
615 def WSBW : ByteSwap<0x20, "wsbw">;
619 def MIPS_CMOV_ZERO : PatLeaf<(i32 0)>;
620 def MIPS_CMOV_NZERO : PatLeaf<(i32 1)>;
622 // Conditional moves:
623 // These instructions are expanded in
624 // MipsISelLowering::EmitInstrWithCustomInserter if target does not have
625 // conditional move instructions.
626 // flag:int, data:int
627 let usesCustomInserter = 1, shamt = 0, Constraints = "$F = $dst" in
628 class CondMovIntInt<bits<6> funct, string instr_asm> :
629 FR<0, funct, (outs CPURegs:$dst),
630 (ins CPURegs:$T, CPURegs:$cond, CPURegs:$F),
631 !strconcat(instr_asm, "\t$dst, $T, $cond"), [], NoItinerary>;
633 def MOVZ_I : CondMovIntInt<0x0a, "movz">;
634 def MOVN_I : CondMovIntInt<0x0b, "movn">;
638 def NOP : FJ<0, (outs), (ins), "nop", [], IIAlu>;
640 // FrameIndexes are legalized when they are operands from load/store
641 // instructions. The same not happens for stack address copies, so an
642 // add op with mem ComplexPattern is used and the stack address copy
643 // can be matched. It's similar to Sparc LEA_ADDRi
644 def LEA_ADDiu : EffectiveAddress<"addiu\t$dst, $addr">;
646 // DynAlloc node points to dynamically allocated stack space.
647 // $sp is added to the list of implicitly used registers to prevent dead code
648 // elimination from removing instructions that modify $sp.
650 def DynAlloc : EffectiveAddress<"addiu\t$dst, $addr">;
653 def MADD : MArithR<0, "madd", MipsMAdd, 1>;
654 def MADDU : MArithR<1, "maddu", MipsMAddu, 1>;
655 def MSUB : MArithR<4, "msub", MipsMSub>;
656 def MSUBU : MArithR<5, "msubu", MipsMSubu>;
658 // MUL is a assembly macro in the current used ISAs. In recent ISA's
659 // it is a real instruction.
660 def MUL : ArithR<0x1c, 0x02, "mul", mul, IIImul, 1>, Requires<[IsMips32]>;
662 def RDHWR : ReadHardware;
664 //===----------------------------------------------------------------------===//
665 // Arbitrary patterns that map to one or more instructions
666 //===----------------------------------------------------------------------===//
669 def : Pat<(i32 immSExt16:$in),
670 (ADDiu ZERO, imm:$in)>;
671 def : Pat<(i32 immZExt16:$in),
672 (ORi ZERO, imm:$in)>;
674 // Arbitrary immediates
675 def : Pat<(i32 imm:$imm),
676 (ORi (LUi (HI16 imm:$imm)), (LO16 imm:$imm))>;
679 def : Pat<(subc CPURegs:$lhs, CPURegs:$rhs),
680 (SUBu CPURegs:$lhs, CPURegs:$rhs)>;
681 def : Pat<(addc CPURegs:$lhs, CPURegs:$rhs),
682 (ADDu CPURegs:$lhs, CPURegs:$rhs)>;
683 def : Pat<(addc CPURegs:$src, immSExt16:$imm),
684 (ADDiu CPURegs:$src, imm:$imm)>;
687 def : Pat<(MipsJmpLink (i32 tglobaladdr:$dst)),
688 (JAL tglobaladdr:$dst)>;
689 def : Pat<(MipsJmpLink (i32 texternalsym:$dst)),
690 (JAL texternalsym:$dst)>;
691 //def : Pat<(MipsJmpLink CPURegs:$dst),
692 // (JALR CPURegs:$dst)>;
695 def : Pat<(MipsHi tglobaladdr:$in), (LUi tglobaladdr:$in)>;
696 def : Pat<(MipsHi tblockaddress:$in), (LUi tblockaddress:$in)>;
697 def : Pat<(add CPURegs:$hi, (MipsLo tglobaladdr:$lo)),
698 (ADDiu CPURegs:$hi, tglobaladdr:$lo)>;
699 def : Pat<(add CPURegs:$hi, (MipsLo tblockaddress:$lo)),
700 (ADDiu CPURegs:$hi, tblockaddress:$lo)>;
702 def : Pat<(MipsHi tjumptable:$in), (LUi tjumptable:$in)>;
703 def : Pat<(add CPURegs:$hi, (MipsLo tjumptable:$lo)),
704 (ADDiu CPURegs:$hi, tjumptable:$lo)>;
706 def : Pat<(MipsHi tconstpool:$in), (LUi tconstpool:$in)>;
707 def : Pat<(add CPURegs:$hi, (MipsLo tconstpool:$lo)),
708 (ADDiu CPURegs:$hi, tconstpool:$lo)>;
711 def : Pat<(add CPURegs:$gp, (MipsGPRel tglobaladdr:$in)),
712 (ADDiu CPURegs:$gp, tglobaladdr:$in)>;
713 def : Pat<(add CPURegs:$gp, (MipsGPRel tconstpool:$in)),
714 (ADDiu CPURegs:$gp, tconstpool:$in)>;
717 def : Pat<(add CPURegs:$gp, (MipsTlsGd tglobaltlsaddr:$in)),
718 (ADDiu CPURegs:$gp, tglobaltlsaddr:$in)>;
721 def : Pat<(MipsTprelHi tglobaltlsaddr:$in), (LUi tglobaltlsaddr:$in)>;
722 def : Pat<(add CPURegs:$hi, (MipsTprelLo tglobaltlsaddr:$lo)),
723 (ADDiu CPURegs:$hi, tglobaltlsaddr:$lo)>;
726 class WrapperPICPat<SDNode node>:
727 Pat<(MipsWrapperPIC node:$in),
728 (ADDiu GP, node:$in)>;
730 def : WrapperPICPat<tglobaladdr>;
731 def : WrapperPICPat<tconstpool>;
732 def : WrapperPICPat<texternalsym>;
733 def : WrapperPICPat<tblockaddress>;
734 def : WrapperPICPat<tjumptable>;
736 // Mips does not have "not", so we expand our way
737 def : Pat<(not CPURegs:$in),
738 (NOR CPURegs:$in, ZERO)>;
740 // extended load and stores
741 def : Pat<(extloadi1 addr:$src), (LBu addr:$src)>;
742 def : Pat<(extloadi8 addr:$src), (LBu addr:$src)>;
743 def : Pat<(extloadi16 addr:$src), (LHu addr:$src)>;
746 def : Pat<(store (i32 0), addr:$dst), (SW ZERO, addr:$dst)>;
749 def : Pat<(brcond (setne CPURegs:$lhs, 0), bb:$dst),
750 (BNE CPURegs:$lhs, ZERO, bb:$dst)>;
751 def : Pat<(brcond (seteq CPURegs:$lhs, 0), bb:$dst),
752 (BEQ CPURegs:$lhs, ZERO, bb:$dst)>;
754 def : Pat<(brcond (setge CPURegs:$lhs, CPURegs:$rhs), bb:$dst),
755 (BEQ (SLT CPURegs:$lhs, CPURegs:$rhs), ZERO, bb:$dst)>;
756 def : Pat<(brcond (setuge CPURegs:$lhs, CPURegs:$rhs), bb:$dst),
757 (BEQ (SLTu CPURegs:$lhs, CPURegs:$rhs), ZERO, bb:$dst)>;
758 def : Pat<(brcond (setge CPURegs:$lhs, immSExt16:$rhs), bb:$dst),
759 (BEQ (SLTi CPURegs:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
760 def : Pat<(brcond (setuge CPURegs:$lhs, immSExt16:$rhs), bb:$dst),
761 (BEQ (SLTiu CPURegs:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
763 def : Pat<(brcond (setle CPURegs:$lhs, CPURegs:$rhs), bb:$dst),
764 (BEQ (SLT CPURegs:$rhs, CPURegs:$lhs), ZERO, bb:$dst)>;
765 def : Pat<(brcond (setule CPURegs:$lhs, CPURegs:$rhs), bb:$dst),
766 (BEQ (SLTu CPURegs:$rhs, CPURegs:$lhs), ZERO, bb:$dst)>;
768 def : Pat<(brcond CPURegs:$cond, bb:$dst),
769 (BNE CPURegs:$cond, ZERO, bb:$dst)>;
772 multiclass MovzPats<RegisterClass RC, Instruction MOVZInst> {
773 def : Pat<(select (setge CPURegs:$lhs, CPURegs:$rhs), RC:$T, RC:$F),
774 (MOVZInst RC:$T, (SLT CPURegs:$lhs, CPURegs:$rhs), RC:$F)>;
775 def : Pat<(select (setuge CPURegs:$lhs, CPURegs:$rhs), RC:$T, RC:$F),
776 (MOVZInst RC:$T, (SLTu CPURegs:$lhs, CPURegs:$rhs), RC:$F)>;
777 def : Pat<(select (setge CPURegs:$lhs, immSExt16:$rhs), RC:$T, RC:$F),
778 (MOVZInst RC:$T, (SLTi CPURegs:$lhs, immSExt16:$rhs), RC:$F)>;
779 def : Pat<(select (setuge CPURegs:$lh, immSExt16:$rh), RC:$T, RC:$F),
780 (MOVZInst RC:$T, (SLTiu CPURegs:$lh, immSExt16:$rh), RC:$F)>;
781 def : Pat<(select (setle CPURegs:$lhs, CPURegs:$rhs), RC:$T, RC:$F),
782 (MOVZInst RC:$T, (SLT CPURegs:$rhs, CPURegs:$lhs), RC:$F)>;
783 def : Pat<(select (setule CPURegs:$lhs, CPURegs:$rhs), RC:$T, RC:$F),
784 (MOVZInst RC:$T, (SLTu CPURegs:$rhs, CPURegs:$lhs), RC:$F)>;
785 def : Pat<(select (seteq CPURegs:$lhs, CPURegs:$rhs), RC:$T, RC:$F),
786 (MOVZInst RC:$T, (XOR CPURegs:$lhs, CPURegs:$rhs), RC:$F)>;
787 def : Pat<(select (seteq CPURegs:$lhs, 0), RC:$T, RC:$F),
788 (MOVZInst RC:$T, CPURegs:$lhs, RC:$F)>;
791 multiclass MovnPats<RegisterClass RC, Instruction MOVNInst> {
792 def : Pat<(select (setne CPURegs:$lhs, CPURegs:$rhs), RC:$T, RC:$F),
793 (MOVNInst RC:$T, (XOR CPURegs:$lhs, CPURegs:$rhs), RC:$F)>;
794 def : Pat<(select CPURegs:$cond, RC:$T, RC:$F),
795 (MOVNInst RC:$T, CPURegs:$cond, RC:$F)>;
796 def : Pat<(select (setne CPURegs:$lhs, 0), RC:$T, RC:$F),
797 (MOVNInst RC:$T, CPURegs:$lhs, RC:$F)>;
800 defm : MovzPats<CPURegs, MOVZ_I>;
801 defm : MovnPats<CPURegs, MOVN_I>;
804 def : Pat<(seteq CPURegs:$lhs, CPURegs:$rhs),
805 (SLTu (XOR CPURegs:$lhs, CPURegs:$rhs), 1)>;
806 def : Pat<(setne CPURegs:$lhs, CPURegs:$rhs),
807 (SLTu ZERO, (XOR CPURegs:$lhs, CPURegs:$rhs))>;
809 def : Pat<(setle CPURegs:$lhs, CPURegs:$rhs),
810 (XORi (SLT CPURegs:$rhs, CPURegs:$lhs), 1)>;
811 def : Pat<(setule CPURegs:$lhs, CPURegs:$rhs),
812 (XORi (SLTu CPURegs:$rhs, CPURegs:$lhs), 1)>;
814 def : Pat<(setgt CPURegs:$lhs, CPURegs:$rhs),
815 (SLT CPURegs:$rhs, CPURegs:$lhs)>;
816 def : Pat<(setugt CPURegs:$lhs, CPURegs:$rhs),
817 (SLTu CPURegs:$rhs, CPURegs:$lhs)>;
819 def : Pat<(setge CPURegs:$lhs, CPURegs:$rhs),
820 (XORi (SLT CPURegs:$lhs, CPURegs:$rhs), 1)>;
821 def : Pat<(setuge CPURegs:$lhs, CPURegs:$rhs),
822 (XORi (SLTu CPURegs:$lhs, CPURegs:$rhs), 1)>;
824 def : Pat<(setge CPURegs:$lhs, immSExt16:$rhs),
825 (XORi (SLTi CPURegs:$lhs, immSExt16:$rhs), 1)>;
826 def : Pat<(setuge CPURegs:$lhs, immSExt16:$rhs),
827 (XORi (SLTiu CPURegs:$lhs, immSExt16:$rhs), 1)>;
829 // select MipsDynAlloc
830 def : Pat<(MipsDynAlloc addr:$f), (DynAlloc addr:$f)>;
832 //===----------------------------------------------------------------------===//
833 // Floating Point Support
834 //===----------------------------------------------------------------------===//
836 include "MipsInstrFPU.td"