1 //===- MipsInstrInfo.td - Mips Register defs ---------------*- 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 //===----------------------------------------------------------------------===//
11 // Instruction format superclass
12 //===----------------------------------------------------------------------===//
14 include "MipsInstrFormats.td"
16 //===----------------------------------------------------------------------===//
17 // Mips profiles and nodes
18 //===----------------------------------------------------------------------===//
20 def SDT_MipsRet : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
21 def SDT_MipsJmpLink : SDTypeProfile<0, 1, [SDTCisVT<0, iPTR>]>;
22 def SDT_MipsSelectCC : SDTypeProfile<1, 3, [SDTCisSameAs<0, 2>,
23 SDTCisSameAs<2, 3>, SDTCisInt<1>]>;
24 def SDT_MipsCMov : SDTypeProfile<1, 4, [SDTCisSameAs<0, 1>,
25 SDTCisSameAs<1, 2>, SDTCisSameAs<3, 4>,
27 def SDT_MipsCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
28 def SDT_MipsCallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>, SDTCisVT<1, i32>]>;
31 def MipsJmpLink : SDNode<"MipsISD::JmpLink",SDT_MipsJmpLink,
32 [SDNPHasChain, SDNPOutFlag, SDNPOptInFlag,
35 // Hi and Lo nodes are used to handle global addresses. Used on
36 // MipsISelLowering to lower stuff like GlobalAddress, ExternalSymbol
37 // static model. (nothing to do with Mips Registers Hi and Lo)
38 def MipsHi : SDNode<"MipsISD::Hi", SDTIntUnaryOp>;
39 def MipsLo : SDNode<"MipsISD::Lo", SDTIntUnaryOp>;
40 def MipsGPRel : SDNode<"MipsISD::GPRel", SDTIntUnaryOp>;
43 def MipsRet : SDNode<"MipsISD::Ret", SDT_MipsRet, [SDNPHasChain,
46 // These are target-independent nodes, but have target-specific formats.
47 def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_MipsCallSeqStart,
48 [SDNPHasChain, SDNPOutFlag]>;
49 def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_MipsCallSeqEnd,
50 [SDNPHasChain, SDNPOptInFlag, SDNPOutFlag]>;
52 // Select Condition Code
53 def MipsSelectCC : SDNode<"MipsISD::SelectCC", SDT_MipsSelectCC>;
56 def MipsCMov : SDNode<"MipsISD::CMov", SDT_MipsCMov>;
58 //===----------------------------------------------------------------------===//
59 // Mips Instruction Predicate Definitions.
60 //===----------------------------------------------------------------------===//
61 def HasSEInReg : Predicate<"Subtarget.hasSEInReg()">;
62 def HasBitCount : Predicate<"Subtarget.hasBitCount()">;
63 def HasSwap : Predicate<"Subtarget.hasSwap()">;
64 def HasCondMov : Predicate<"Subtarget.hasCondMov()">;
65 def IsMips32 : Predicate<"Subtarget.isMips32()">;
67 //===----------------------------------------------------------------------===//
68 // Mips Operand, Complex Patterns and Transformations Definitions.
69 //===----------------------------------------------------------------------===//
71 // Instruction operand types
72 def brtarget : Operand<OtherVT>;
73 def calltarget : Operand<i32>;
74 def simm16 : Operand<i32>;
75 def shamt : Operand<i32>;
78 def uimm16 : Operand<i32> {
79 let PrintMethod = "printUnsignedImm";
83 def mem : Operand<i32> {
84 let PrintMethod = "printMemOperand";
85 let MIOperandInfo = (ops simm16, CPURegs);
88 // Transformation Function - get the lower 16 bits.
89 def LO16 : SDNodeXForm<imm, [{
90 return getI32Imm((unsigned)N->getZExtValue() & 0xFFFF);
93 // Transformation Function - get the higher 16 bits.
94 def HI16 : SDNodeXForm<imm, [{
95 return getI32Imm((unsigned)N->getZExtValue() >> 16);
98 // Node immediate fits as 16-bit sign extended on target immediate.
100 def immSExt16 : PatLeaf<(imm), [{ return isInt<16>(N->getSExtValue()); }]>;
102 // Node immediate fits as 16-bit zero extended on target immediate.
103 // The LO16 param means that only the lower 16 bits of the node
104 // immediate are caught.
106 def immZExt16 : PatLeaf<(imm), [{
107 if (N->getValueType(0) == MVT::i32)
108 return (uint32_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
110 return (uint64_t)N->getZExtValue() == (unsigned short)N->getZExtValue();
113 // shamt field must fit in 5 bits.
114 def immZExt5 : PatLeaf<(imm), [{
115 return N->getZExtValue() == ((N->getZExtValue()) & 0x1f) ;
118 // Mips Address Mode! SDNode frameindex could possibily be a match
119 // since load and store instructions from stack used it.
120 def addr : ComplexPattern<iPTR, 2, "SelectAddr", [frameindex], []>;
122 //===----------------------------------------------------------------------===//
123 // Instructions specific format
124 //===----------------------------------------------------------------------===//
126 // Arithmetic 3 register operands
127 let isCommutable = 1 in
128 class ArithR<bits<6> op, bits<6> func, string instr_asm, SDNode OpNode,
129 InstrItinClass itin>:
130 FR<op, func, (outs CPURegs:$dst), (ins CPURegs:$b, CPURegs:$c),
131 !strconcat(instr_asm, "\t$dst, $b, $c"),
132 [(set CPURegs:$dst, (OpNode CPURegs:$b, CPURegs:$c))], itin>;
134 let isCommutable = 1 in
135 class ArithOverflowR<bits<6> op, bits<6> func, string instr_asm>:
136 FR<op, func, (outs CPURegs:$dst), (ins CPURegs:$b, CPURegs:$c),
137 !strconcat(instr_asm, "\t$dst, $b, $c"), [], IIAlu>;
139 // Arithmetic 2 register operands
140 class ArithI<bits<6> op, string instr_asm, SDNode OpNode,
141 Operand Od, PatLeaf imm_type> :
142 FI<op, (outs CPURegs:$dst), (ins CPURegs:$b, Od:$c),
143 !strconcat(instr_asm, "\t$dst, $b, $c"),
144 [(set CPURegs:$dst, (OpNode CPURegs:$b, imm_type:$c))], IIAlu>;
146 class ArithOverflowI<bits<6> op, string instr_asm, SDNode OpNode,
147 Operand Od, PatLeaf imm_type> :
148 FI<op, (outs CPURegs:$dst), (ins CPURegs:$b, Od:$c),
149 !strconcat(instr_asm, "\t$dst, $b, $c"), [], IIAlu>;
151 // Arithmetic Multiply ADD/SUB
153 class MArithR<bits<6> func, string instr_asm> :
154 FR<0x1c, func, (outs CPURegs:$rs), (ins CPURegs:$rt),
155 !strconcat(instr_asm, "\t$rs, $rt"), [], IIImul>;
158 class LogicR<bits<6> func, string instr_asm, SDNode OpNode>:
159 FR<0x00, func, (outs CPURegs:$dst), (ins CPURegs:$b, CPURegs:$c),
160 !strconcat(instr_asm, "\t$dst, $b, $c"),
161 [(set CPURegs:$dst, (OpNode CPURegs:$b, CPURegs:$c))], IIAlu>;
163 class LogicI<bits<6> op, string instr_asm, SDNode OpNode>:
164 FI<op, (outs CPURegs:$dst), (ins CPURegs:$b, uimm16:$c),
165 !strconcat(instr_asm, "\t$dst, $b, $c"),
166 [(set CPURegs:$dst, (OpNode CPURegs:$b, immZExt16:$c))], IIAlu>;
168 class LogicNOR<bits<6> op, bits<6> func, string instr_asm>:
169 FR<op, func, (outs CPURegs:$dst), (ins CPURegs:$b, CPURegs:$c),
170 !strconcat(instr_asm, "\t$dst, $b, $c"),
171 [(set CPURegs:$dst, (not (or CPURegs:$b, CPURegs:$c)))], IIAlu>;
175 class LogicR_shift_imm<bits<6> func, string instr_asm, SDNode OpNode>:
176 FR<0x00, func, (outs CPURegs:$dst), (ins CPURegs:$b, shamt:$c),
177 !strconcat(instr_asm, "\t$dst, $b, $c"),
178 [(set CPURegs:$dst, (OpNode CPURegs:$b, immZExt5:$c))], IIAlu>;
180 class LogicR_shift_reg<bits<6> func, string instr_asm, SDNode OpNode>:
181 FR<0x00, func, (outs CPURegs:$dst), (ins CPURegs:$b, CPURegs:$c),
182 !strconcat(instr_asm, "\t$dst, $b, $c"),
183 [(set CPURegs:$dst, (OpNode CPURegs:$b, CPURegs:$c))], IIAlu>;
185 // Load Upper Imediate
186 class LoadUpper<bits<6> op, string instr_asm>:
190 !strconcat(instr_asm, "\t$dst, $imm"),
194 let canFoldAsLoad = 1, hasDelaySlot = 1 in
195 class LoadM<bits<6> op, string instr_asm, PatFrag OpNode>:
196 FI<op, (outs CPURegs:$dst), (ins mem:$addr),
197 !strconcat(instr_asm, "\t$dst, $addr"),
198 [(set CPURegs:$dst, (OpNode addr:$addr))], IILoad>;
200 class StoreM<bits<6> op, string instr_asm, PatFrag OpNode>:
201 FI<op, (outs), (ins CPURegs:$dst, mem:$addr),
202 !strconcat(instr_asm, "\t$dst, $addr"),
203 [(OpNode CPURegs:$dst, addr:$addr)], IIStore>;
205 // Conditional Branch
206 let isBranch = 1, isTerminator=1, hasDelaySlot = 1 in {
207 class CBranch<bits<6> op, string instr_asm, PatFrag cond_op>:
208 FI<op, (outs), (ins CPURegs:$a, CPURegs:$b, brtarget:$offset),
209 !strconcat(instr_asm, "\t$a, $b, $offset"),
210 [(brcond (cond_op CPURegs:$a, CPURegs:$b), bb:$offset)],
213 class CBranchZero<bits<6> op, string instr_asm, PatFrag cond_op>:
214 FI<op, (outs), (ins CPURegs:$src, brtarget:$offset),
215 !strconcat(instr_asm, "\t$src, $offset"),
216 [(brcond (cond_op CPURegs:$src, 0), bb:$offset)],
221 class SetCC_R<bits<6> op, bits<6> func, string instr_asm,
223 FR<op, func, (outs CPURegs:$dst), (ins CPURegs:$b, CPURegs:$c),
224 !strconcat(instr_asm, "\t$dst, $b, $c"),
225 [(set CPURegs:$dst, (cond_op CPURegs:$b, CPURegs:$c))],
228 class SetCC_I<bits<6> op, string instr_asm, PatFrag cond_op,
229 Operand Od, PatLeaf imm_type>:
230 FI<op, (outs CPURegs:$dst), (ins CPURegs:$b, Od:$c),
231 !strconcat(instr_asm, "\t$dst, $b, $c"),
232 [(set CPURegs:$dst, (cond_op CPURegs:$b, imm_type:$c))],
235 // Unconditional branch
236 let isBranch=1, isTerminator=1, isBarrier=1, hasDelaySlot = 1 in
237 class JumpFJ<bits<6> op, string instr_asm>:
238 FJ<op, (outs), (ins brtarget:$target),
239 !strconcat(instr_asm, "\t$target"), [(br bb:$target)], IIBranch>;
241 let isBranch=1, isTerminator=1, isBarrier=1, rd=0, hasDelaySlot = 1 in
242 class JumpFR<bits<6> op, bits<6> func, string instr_asm>:
243 FR<op, func, (outs), (ins CPURegs:$target),
244 !strconcat(instr_asm, "\t$target"), [(brind CPURegs:$target)], IIBranch>;
246 // Jump and Link (Call)
247 let isCall=1, hasDelaySlot=1,
248 // All calls clobber the non-callee saved registers...
249 Defs = [AT, V0, V1, A0, A1, A2, A3, T0, T1, T2, T3, T4, T5, T6, T7, T8, T9,
250 K0, K1, D0, D1, D2, D3, D4, D5, D6, D7, D8, D9], Uses = [GP] in {
251 class JumpLink<bits<6> op, string instr_asm>:
252 FJ<op, (outs), (ins calltarget:$target, variable_ops),
253 !strconcat(instr_asm, "\t$target"), [(MipsJmpLink imm:$target)],
257 class JumpLinkReg<bits<6> op, bits<6> func, string instr_asm>:
258 FR<op, func, (outs), (ins CPURegs:$rs, variable_ops),
259 !strconcat(instr_asm, "\t$rs"), [(MipsJmpLink CPURegs:$rs)], IIBranch>;
261 class BranchLink<string instr_asm>:
262 FI<0x1, (outs), (ins CPURegs:$rs, brtarget:$target, variable_ops),
263 !strconcat(instr_asm, "\t$rs, $target"), [], IIBranch>;
267 class MulDiv<bits<6> func, string instr_asm, InstrItinClass itin>:
268 FR<0x00, func, (outs), (ins CPURegs:$a, CPURegs:$b),
269 !strconcat(instr_asm, "\t$a, $b"), [], itin>;
272 class MoveFromLOHI<bits<6> func, string instr_asm>:
273 FR<0x00, func, (outs CPURegs:$dst), (ins),
274 !strconcat(instr_asm, "\t$dst"), [], IIHiLo>;
276 class MoveToLOHI<bits<6> func, string instr_asm>:
277 FR<0x00, func, (outs), (ins CPURegs:$src),
278 !strconcat(instr_asm, "\t$src"), [], IIHiLo>;
280 class EffectiveAddress<string instr_asm> :
281 FI<0x09, (outs CPURegs:$dst), (ins mem:$addr),
282 instr_asm, [(set CPURegs:$dst, addr:$addr)], IIAlu>;
284 // Count Leading Ones/Zeros in Word
285 class CountLeading<bits<6> func, string instr_asm, list<dag> pattern>:
286 FR<0x1c, func, (outs CPURegs:$dst), (ins CPURegs:$src),
287 !strconcat(instr_asm, "\t$dst, $src"), pattern, IIAlu>,
288 Requires<[HasBitCount]> {
293 // Sign Extend in Register.
294 class SignExtInReg<bits<6> func, string instr_asm, ValueType vt>:
295 FR<0x3f, func, (outs CPURegs:$dst), (ins CPURegs:$src),
296 !strconcat(instr_asm, "\t$dst, $src"),
297 [(set CPURegs:$dst, (sext_inreg CPURegs:$src, vt))], NoItinerary>;
300 class ByteSwap<bits<6> func, string instr_asm>:
301 FR<0x1f, func, (outs CPURegs:$dst), (ins CPURegs:$src),
302 !strconcat(instr_asm, "\t$dst, $src"),
303 [(set CPURegs:$dst, (bswap CPURegs:$src))], NoItinerary>;
306 class CondMov<bits<6> func, string instr_asm, PatLeaf MovCode>:
307 FR<0x00, func, (outs CPURegs:$dst), (ins CPURegs:$F, CPURegs:$T,
308 CPURegs:$cond), !strconcat(instr_asm, "\t$dst, $T, $cond"),
309 [(set CPURegs:$dst, (MipsCMov CPURegs:$F, CPURegs:$T,
310 CPURegs:$cond, MovCode))], NoItinerary>;
312 //===----------------------------------------------------------------------===//
313 // Pseudo instructions
314 //===----------------------------------------------------------------------===//
316 // As stack alignment is always done with addiu, we need a 16-bit immediate
317 let Defs = [SP], Uses = [SP] in {
318 def ADJCALLSTACKDOWN : MipsPseudo<(outs), (ins uimm16:$amt),
319 "!ADJCALLSTACKDOWN $amt",
320 [(callseq_start timm:$amt)]>;
321 def ADJCALLSTACKUP : MipsPseudo<(outs), (ins uimm16:$amt1, uimm16:$amt2),
322 "!ADJCALLSTACKUP $amt1",
323 [(callseq_end timm:$amt1, timm:$amt2)]>;
326 // Some assembly macros need to avoid pseudoinstructions and assembler
327 // automatic reodering, we should reorder ourselves.
328 def MACRO : MipsPseudo<(outs), (ins), ".set\tmacro", []>;
329 def REORDER : MipsPseudo<(outs), (ins), ".set\treorder", []>;
330 def NOMACRO : MipsPseudo<(outs), (ins), ".set\tnomacro", []>;
331 def NOREORDER : MipsPseudo<(outs), (ins), ".set\tnoreorder", []>;
333 // When handling PIC code the assembler needs .cpload and .cprestore
334 // directives. If the real instructions corresponding these directives
335 // are used, we have the same behavior, but get also a bunch of warnings
336 // from the assembler.
337 def CPLOAD : MipsPseudo<(outs), (ins CPURegs:$picreg), ".cpload\t$picreg", []>;
338 def CPRESTORE : MipsPseudo<(outs), (ins uimm16:$loc), ".cprestore\t$loc\n", []>;
340 // The supported Mips ISAs dont have any instruction close to the SELECT_CC
341 // operation. The solution is to create a Mips pseudo SELECT_CC instruction
342 // (MipsSelectCC), use LowerSELECT_CC to generate this instruction and finally
343 // replace it for real supported nodes into EmitInstrWithCustomInserter
344 let usesCustomInserter = 1 in {
345 class PseudoSelCC<RegisterClass RC, string asmstr>:
346 MipsPseudo<(outs RC:$dst), (ins CPURegs:$CmpRes, RC:$T, RC:$F), asmstr,
347 [(set RC:$dst, (MipsSelectCC CPURegs:$CmpRes, RC:$T, RC:$F))]>;
350 def Select_CC : PseudoSelCC<CPURegs, "# MipsSelect_CC_i32">;
352 //===----------------------------------------------------------------------===//
353 // Instruction definition
354 //===----------------------------------------------------------------------===//
356 //===----------------------------------------------------------------------===//
357 // MipsI Instructions
358 //===----------------------------------------------------------------------===//
360 /// Arithmetic Instructions (ALU Immediate)
361 def ADDiu : ArithI<0x09, "addiu", add, simm16, immSExt16>;
362 def ADDi : ArithOverflowI<0x08, "addi", add, simm16, immSExt16>;
363 def SLTi : SetCC_I<0x0a, "slti", setlt, simm16, immSExt16>;
364 def SLTiu : SetCC_I<0x0b, "sltiu", setult, simm16, immSExt16>;
365 def ANDi : LogicI<0x0c, "andi", and>;
366 def ORi : LogicI<0x0d, "ori", or>;
367 def XORi : LogicI<0x0e, "xori", xor>;
368 def LUi : LoadUpper<0x0f, "lui">;
370 /// Arithmetic Instructions (3-Operand, R-Type)
371 def ADDu : ArithR<0x00, 0x21, "addu", add, IIAlu>;
372 def SUBu : ArithR<0x00, 0x23, "subu", sub, IIAlu>;
373 def ADD : ArithOverflowR<0x00, 0x20, "add">;
374 def SUB : ArithOverflowR<0x00, 0x22, "sub">;
375 def SLT : SetCC_R<0x00, 0x2a, "slt", setlt>;
376 def SLTu : SetCC_R<0x00, 0x2b, "sltu", setult>;
377 def AND : LogicR<0x24, "and", and>;
378 def OR : LogicR<0x25, "or", or>;
379 def XOR : LogicR<0x26, "xor", xor>;
380 def NOR : LogicNOR<0x00, 0x27, "nor">;
382 /// Shift Instructions
383 def SLL : LogicR_shift_imm<0x00, "sll", shl>;
384 def SRL : LogicR_shift_imm<0x02, "srl", srl>;
385 def SRA : LogicR_shift_imm<0x03, "sra", sra>;
386 def SLLV : LogicR_shift_reg<0x04, "sllv", shl>;
387 def SRLV : LogicR_shift_reg<0x06, "srlv", srl>;
388 def SRAV : LogicR_shift_reg<0x07, "srav", sra>;
390 /// Load and Store Instructions
391 def LB : LoadM<0x20, "lb", sextloadi8>;
392 def LBu : LoadM<0x24, "lbu", zextloadi8>;
393 def LH : LoadM<0x21, "lh", sextloadi16>;
394 def LHu : LoadM<0x25, "lhu", zextloadi16>;
395 def LW : LoadM<0x23, "lw", load>;
396 def SB : StoreM<0x28, "sb", truncstorei8>;
397 def SH : StoreM<0x29, "sh", truncstorei16>;
398 def SW : StoreM<0x2b, "sw", store>;
400 /// Jump and Branch Instructions
401 def J : JumpFJ<0x02, "j">;
402 def JR : JumpFR<0x00, 0x08, "jr">;
403 def JAL : JumpLink<0x03, "jal">;
404 def JALR : JumpLinkReg<0x00, 0x09, "jalr">;
405 def BEQ : CBranch<0x04, "beq", seteq>;
406 def BNE : CBranch<0x05, "bne", setne>;
409 def BGEZ : CBranchZero<0x01, "bgez", setge>;
412 def BGTZ : CBranchZero<0x07, "bgtz", setgt>;
413 def BLEZ : CBranchZero<0x07, "blez", setle>;
414 def BLTZ : CBranchZero<0x01, "bltz", setlt>;
417 def BGEZAL : BranchLink<"bgezal">;
418 def BLTZAL : BranchLink<"bltzal">;
420 let isReturn=1, isTerminator=1, hasDelaySlot=1,
421 isBarrier=1, hasCtrlDep=1, rs=0, rt=0, shamt=0 in
422 def RET : FR <0x00, 0x02, (outs), (ins CPURegs:$target),
423 "jr\t$target", [(MipsRet CPURegs:$target)], IIBranch>;
425 /// Multiply and Divide Instructions.
426 let Defs = [HI, LO] in {
427 def MULT : MulDiv<0x18, "mult", IIImul>;
428 def MULTu : MulDiv<0x19, "multu", IIImul>;
429 def DIV : MulDiv<0x1a, "div", IIIdiv>;
430 def DIVu : MulDiv<0x1b, "divu", IIIdiv>;
434 def MTHI : MoveToLOHI<0x11, "mthi">;
436 def MTLO : MoveToLOHI<0x13, "mtlo">;
439 def MFHI : MoveFromLOHI<0x10, "mfhi">;
441 def MFLO : MoveFromLOHI<0x12, "mflo">;
443 /// Sign Ext In Register Instructions.
444 let Predicates = [HasSEInReg] in {
445 let shamt = 0x10, rs = 0 in
446 def SEB : SignExtInReg<0x21, "seb", i8>;
448 let shamt = 0x18, rs = 0 in
449 def SEH : SignExtInReg<0x20, "seh", i16>;
453 def CLZ : CountLeading<0b100000, "clz",
454 [(set CPURegs:$dst, (ctlz CPURegs:$src))]>;
455 def CLO : CountLeading<0b100001, "clo",
456 [(set CPURegs:$dst, (ctlz (not CPURegs:$src)))]>;
459 let Predicates = [HasSwap] in {
460 let shamt = 0x3, rs = 0 in
461 def WSBW : ByteSwap<0x20, "wsbw">;
465 def MIPS_CMOV_ZERO : PatLeaf<(i32 0)>;
466 def MIPS_CMOV_NZERO : PatLeaf<(i32 1)>;
468 let Predicates = [HasCondMov], Constraints = "$F = $dst" in {
469 def MOVN : CondMov<0x0a, "movn", MIPS_CMOV_NZERO>;
470 def MOVZ : CondMov<0x0b, "movz", MIPS_CMOV_ZERO>;
475 def NOP : FJ<0, (outs), (ins), "nop", [], IIAlu>;
477 // FrameIndexes are legalized when they are operands from load/store
478 // instructions. The same not happens for stack address copies, so an
479 // add op with mem ComplexPattern is used and the stack address copy
480 // can be matched. It's similar to Sparc LEA_ADDRi
481 def LEA_ADDiu : EffectiveAddress<"addiu\t$dst, ${addr:stackloc}">;
483 // MADD*/MSUB* are not part of MipsI either.
484 //def MADD : MArithR<0x00, "madd">;
485 //def MADDU : MArithR<0x01, "maddu">;
486 //def MSUB : MArithR<0x04, "msub">;
487 //def MSUBU : MArithR<0x05, "msubu">;
489 // MUL is a assembly macro in the current used ISAs. In recent ISA's
490 // it is a real instruction.
491 def MUL : ArithR<0x1c, 0x02, "mul", mul, IIImul>, Requires<[IsMips32]>;
493 //===----------------------------------------------------------------------===//
494 // Arbitrary patterns that map to one or more instructions
495 //===----------------------------------------------------------------------===//
498 def : Pat<(i32 immSExt16:$in),
499 (ADDiu ZERO, imm:$in)>;
500 def : Pat<(i32 immZExt16:$in),
501 (ORi ZERO, imm:$in)>;
503 // Arbitrary immediates
504 def : Pat<(i32 imm:$imm),
505 (ORi (LUi (HI16 imm:$imm)), (LO16 imm:$imm))>;
508 def : Pat<(subc CPURegs:$lhs, CPURegs:$rhs),
509 (SUBu CPURegs:$lhs, CPURegs:$rhs)>;
510 def : Pat<(addc CPURegs:$lhs, CPURegs:$rhs),
511 (ADDu CPURegs:$lhs, CPURegs:$rhs)>;
512 def : Pat<(addc CPURegs:$src, imm:$imm),
513 (ADDiu CPURegs:$src, imm:$imm)>;
516 def : Pat<(MipsJmpLink (i32 tglobaladdr:$dst)),
517 (JAL tglobaladdr:$dst)>;
518 def : Pat<(MipsJmpLink (i32 texternalsym:$dst)),
519 (JAL texternalsym:$dst)>;
520 //def : Pat<(MipsJmpLink CPURegs:$dst),
521 // (JALR CPURegs:$dst)>;
524 def : Pat<(MipsHi tglobaladdr:$in), (LUi tglobaladdr:$in)>;
525 def : Pat<(add CPURegs:$hi, (MipsLo tglobaladdr:$lo)),
526 (ADDiu CPURegs:$hi, tglobaladdr:$lo)>;
528 def : Pat<(MipsHi tjumptable:$in), (LUi tjumptable:$in)>;
529 def : Pat<(add CPURegs:$hi, (MipsLo tjumptable:$lo)),
530 (ADDiu CPURegs:$hi, tjumptable:$lo)>;
532 def : Pat<(MipsHi tconstpool:$in), (LUi tconstpool:$in)>;
533 def : Pat<(add CPURegs:$hi, (MipsLo tconstpool:$lo)),
534 (ADDiu CPURegs:$hi, tconstpool:$lo)>;
537 def : Pat<(add CPURegs:$gp, (MipsGPRel tglobaladdr:$in)),
538 (ADDiu CPURegs:$gp, tglobaladdr:$in)>;
539 def : Pat<(add CPURegs:$gp, (MipsGPRel tconstpool:$in)),
540 (ADDiu CPURegs:$gp, tconstpool:$in)>;
542 // Mips does not have "not", so we expand our way
543 def : Pat<(not CPURegs:$in),
544 (NOR CPURegs:$in, ZERO)>;
546 // extended load and stores
547 def : Pat<(extloadi1 addr:$src), (LBu addr:$src)>;
548 def : Pat<(extloadi8 addr:$src), (LBu addr:$src)>;
549 def : Pat<(extloadi16 addr:$src), (LHu addr:$src)>;
552 def : Pat<(store (i32 0), addr:$dst), (SW ZERO, addr:$dst)>;
555 def : Pat<(brcond (setne CPURegs:$lhs, 0), bb:$dst),
556 (BNE CPURegs:$lhs, ZERO, bb:$dst)>;
557 def : Pat<(brcond (seteq CPURegs:$lhs, 0), bb:$dst),
558 (BEQ CPURegs:$lhs, ZERO, bb:$dst)>;
560 def : Pat<(brcond (setge CPURegs:$lhs, CPURegs:$rhs), bb:$dst),
561 (BEQ (SLT CPURegs:$lhs, CPURegs:$rhs), ZERO, bb:$dst)>;
562 def : Pat<(brcond (setuge CPURegs:$lhs, CPURegs:$rhs), bb:$dst),
563 (BEQ (SLTu CPURegs:$lhs, CPURegs:$rhs), ZERO, bb:$dst)>;
564 def : Pat<(brcond (setge CPURegs:$lhs, immSExt16:$rhs), bb:$dst),
565 (BEQ (SLTi CPURegs:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
566 def : Pat<(brcond (setuge CPURegs:$lhs, immSExt16:$rhs), bb:$dst),
567 (BEQ (SLTiu CPURegs:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>;
569 def : Pat<(brcond (setle CPURegs:$lhs, CPURegs:$rhs), bb:$dst),
570 (BEQ (SLT CPURegs:$rhs, CPURegs:$lhs), ZERO, bb:$dst)>;
571 def : Pat<(brcond (setule CPURegs:$lhs, CPURegs:$rhs), bb:$dst),
572 (BEQ (SLTu CPURegs:$rhs, CPURegs:$lhs), ZERO, bb:$dst)>;
574 def : Pat<(brcond CPURegs:$cond, bb:$dst),
575 (BNE CPURegs:$cond, ZERO, bb:$dst)>;
578 def : Pat<(select (setge CPURegs:$lhs, CPURegs:$rhs), CPURegs:$T, CPURegs:$F),
579 (MOVZ CPURegs:$F, CPURegs:$T, (SLT CPURegs:$lhs, CPURegs:$rhs))>;
580 def : Pat<(select (setuge CPURegs:$lhs, CPURegs:$rhs), CPURegs:$T, CPURegs:$F),
581 (MOVZ CPURegs:$F, CPURegs:$T, (SLTu CPURegs:$lhs, CPURegs:$rhs))>;
582 def : Pat<(select (setge CPURegs:$lhs, immSExt16:$rhs), CPURegs:$T, CPURegs:$F),
583 (MOVZ CPURegs:$F, CPURegs:$T, (SLTi CPURegs:$lhs, immSExt16:$rhs))>;
584 def : Pat<(select (setuge CPURegs:$lh, immSExt16:$rh), CPURegs:$T, CPURegs:$F),
585 (MOVZ CPURegs:$F, CPURegs:$T, (SLTiu CPURegs:$lh, immSExt16:$rh))>;
587 def : Pat<(select (setle CPURegs:$lhs, CPURegs:$rhs), CPURegs:$T, CPURegs:$F),
588 (MOVZ CPURegs:$F, CPURegs:$T, (SLT CPURegs:$rhs, CPURegs:$lhs))>;
589 def : Pat<(select (setule CPURegs:$lhs, CPURegs:$rhs), CPURegs:$T, CPURegs:$F),
590 (MOVZ CPURegs:$F, CPURegs:$T, (SLTu CPURegs:$rhs, CPURegs:$lhs))>;
592 def : Pat<(select (seteq CPURegs:$lhs, CPURegs:$rhs), CPURegs:$T, CPURegs:$F),
593 (MOVZ CPURegs:$F, CPURegs:$T, (XOR CPURegs:$lhs, CPURegs:$rhs))>;
594 def : Pat<(select (setne CPURegs:$lhs, CPURegs:$rhs), CPURegs:$T, CPURegs:$F),
595 (MOVN CPURegs:$F, CPURegs:$T, (XOR CPURegs:$lhs, CPURegs:$rhs))>;
597 def : Pat<(select CPURegs:$cond, CPURegs:$T, CPURegs:$F),
598 (MOVN CPURegs:$F, CPURegs:$T, CPURegs:$cond)>;
601 def : Pat<(seteq CPURegs:$lhs, CPURegs:$rhs),
602 (SLTu (XOR CPURegs:$lhs, CPURegs:$rhs), 1)>;
603 def : Pat<(setne CPURegs:$lhs, CPURegs:$rhs),
604 (SLTu ZERO, (XOR CPURegs:$lhs, CPURegs:$rhs))>;
606 def : Pat<(setle CPURegs:$lhs, CPURegs:$rhs),
607 (XORi (SLT CPURegs:$rhs, CPURegs:$lhs), 1)>;
608 def : Pat<(setule CPURegs:$lhs, CPURegs:$rhs),
609 (XORi (SLTu CPURegs:$rhs, CPURegs:$lhs), 1)>;
611 def : Pat<(setgt CPURegs:$lhs, CPURegs:$rhs),
612 (SLT CPURegs:$rhs, CPURegs:$lhs)>;
613 def : Pat<(setugt CPURegs:$lhs, CPURegs:$rhs),
614 (SLTu CPURegs:$rhs, CPURegs:$lhs)>;
616 def : Pat<(setge CPURegs:$lhs, CPURegs:$rhs),
617 (XORi (SLT CPURegs:$lhs, CPURegs:$rhs), 1)>;
618 def : Pat<(setuge CPURegs:$lhs, CPURegs:$rhs),
619 (XORi (SLTu CPURegs:$lhs, CPURegs:$rhs), 1)>;
621 def : Pat<(setge CPURegs:$lhs, immSExt16:$rhs),
622 (XORi (SLTi CPURegs:$lhs, immSExt16:$rhs), 1)>;
623 def : Pat<(setuge CPURegs:$lhs, immSExt16:$rhs),
624 (XORi (SLTiu CPURegs:$lhs, immSExt16:$rhs), 1)>;
626 //===----------------------------------------------------------------------===//
627 // Floating Point Support
628 //===----------------------------------------------------------------------===//
630 include "MipsInstrFPU.td"