1 //===- ARMInstrFormats.td - ARM Instruction Formats ----------*- 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 //===----------------------------------------------------------------------===//
12 // ARM Instruction Format Definitions.
15 // Format specifies the encoding used by the instruction. This is part of the
16 // ad-hoc solution used to emit machine instruction encodings by our machine
18 class Format<bits<6> val> {
22 def Pseudo : Format<0>;
23 def MulFrm : Format<1>;
24 def BrFrm : Format<2>;
25 def BrMiscFrm : Format<3>;
27 def DPFrm : Format<4>;
28 def DPSoRegRegFrm : Format<5>;
30 def LdFrm : Format<6>;
31 def StFrm : Format<7>;
32 def LdMiscFrm : Format<8>;
33 def StMiscFrm : Format<9>;
34 def LdStMulFrm : Format<10>;
36 def LdStExFrm : Format<11>;
38 def ArithMiscFrm : Format<12>;
39 def SatFrm : Format<13>;
40 def ExtFrm : Format<14>;
42 def VFPUnaryFrm : Format<15>;
43 def VFPBinaryFrm : Format<16>;
44 def VFPConv1Frm : Format<17>;
45 def VFPConv2Frm : Format<18>;
46 def VFPConv3Frm : Format<19>;
47 def VFPConv4Frm : Format<20>;
48 def VFPConv5Frm : Format<21>;
49 def VFPLdStFrm : Format<22>;
50 def VFPLdStMulFrm : Format<23>;
51 def VFPMiscFrm : Format<24>;
53 def ThumbFrm : Format<25>;
54 def MiscFrm : Format<26>;
56 def NGetLnFrm : Format<27>;
57 def NSetLnFrm : Format<28>;
58 def NDupFrm : Format<29>;
59 def NLdStFrm : Format<30>;
60 def N1RegModImmFrm: Format<31>;
61 def N2RegFrm : Format<32>;
62 def NVCVTFrm : Format<33>;
63 def NVDupLnFrm : Format<34>;
64 def N2RegVShLFrm : Format<35>;
65 def N2RegVShRFrm : Format<36>;
66 def N3RegFrm : Format<37>;
67 def N3RegVShFrm : Format<38>;
68 def NVExtFrm : Format<39>;
69 def NVMulSLFrm : Format<40>;
70 def NVTBLFrm : Format<41>;
71 def DPSoRegImmFrm : Format<42>;
75 // The instruction has an Rn register operand.
76 // UnaryDP - Indicates this is a unary data processing instruction, i.e.
77 // it doesn't have a Rn operand.
78 class UnaryDP { bit isUnaryDataProc = 1; }
80 // Xform16Bit - Indicates this Thumb2 instruction may be transformed into
81 // a 16-bit Thumb instruction if certain conditions are met.
82 class Xform16Bit { bit canXformTo16Bit = 1; }
84 //===----------------------------------------------------------------------===//
85 // ARM Instruction flags. These need to match ARMBaseInstrInfo.h.
88 // FIXME: Once the JIT is MC-ized, these can go away.
90 class AddrMode<bits<5> val> {
93 def AddrModeNone : AddrMode<0>;
94 def AddrMode1 : AddrMode<1>;
95 def AddrMode2 : AddrMode<2>;
96 def AddrMode3 : AddrMode<3>;
97 def AddrMode4 : AddrMode<4>;
98 def AddrMode5 : AddrMode<5>;
99 def AddrMode6 : AddrMode<6>;
100 def AddrModeT1_1 : AddrMode<7>;
101 def AddrModeT1_2 : AddrMode<8>;
102 def AddrModeT1_4 : AddrMode<9>;
103 def AddrModeT1_s : AddrMode<10>;
104 def AddrModeT2_i12 : AddrMode<11>;
105 def AddrModeT2_i8 : AddrMode<12>;
106 def AddrModeT2_so : AddrMode<13>;
107 def AddrModeT2_pc : AddrMode<14>;
108 def AddrModeT2_i8s4 : AddrMode<15>;
109 def AddrMode_i12 : AddrMode<16>;
111 // Load / store index mode.
112 class IndexMode<bits<2> val> {
115 def IndexModeNone : IndexMode<0>;
116 def IndexModePre : IndexMode<1>;
117 def IndexModePost : IndexMode<2>;
118 def IndexModeUpd : IndexMode<3>;
120 // Instruction execution domain.
121 class Domain<bits<3> val> {
124 def GenericDomain : Domain<0>;
125 def VFPDomain : Domain<1>; // Instructions in VFP domain only
126 def NeonDomain : Domain<2>; // Instructions in Neon domain only
127 def VFPNeonDomain : Domain<3>; // Instructions in both VFP & Neon domains
128 def VFPNeonA8Domain : Domain<5>; // Instructions in VFP & Neon under A8
130 //===----------------------------------------------------------------------===//
131 // ARM special operands.
134 // ARM imod and iflag operands, used only by the CPS instruction.
135 def imod_op : Operand<i32> {
136 let PrintMethod = "printCPSIMod";
139 def ProcIFlagsOperand : AsmOperandClass {
140 let Name = "ProcIFlags";
141 let ParserMethod = "parseProcIFlagsOperand";
143 def iflags_op : Operand<i32> {
144 let PrintMethod = "printCPSIFlag";
145 let ParserMatchClass = ProcIFlagsOperand;
148 // ARM Predicate operand. Default to 14 = always (AL). Second part is CC
149 // register whose default is 0 (no register).
150 def CondCodeOperand : AsmOperandClass { let Name = "CondCode"; }
151 def pred : PredicateOperand<OtherVT, (ops i32imm, i32imm),
152 (ops (i32 14), (i32 zero_reg))> {
153 let PrintMethod = "printPredicateOperand";
154 let ParserMatchClass = CondCodeOperand;
155 let DecoderMethod = "DecodePredicateOperand";
158 // Conditional code result for instructions whose 's' bit is set, e.g. subs.
159 def CCOutOperand : AsmOperandClass { let Name = "CCOut"; }
160 def cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 zero_reg))> {
161 let EncoderMethod = "getCCOutOpValue";
162 let PrintMethod = "printSBitModifierOperand";
163 let ParserMatchClass = CCOutOperand;
164 let DecoderMethod = "DecodeCCOutOperand";
167 // Same as cc_out except it defaults to setting CPSR.
168 def s_cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 CPSR))> {
169 let EncoderMethod = "getCCOutOpValue";
170 let PrintMethod = "printSBitModifierOperand";
171 let ParserMatchClass = CCOutOperand;
172 let DecoderMethod = "DecodeCCOutOperand";
175 // ARM special operands for disassembly only.
177 def SetEndAsmOperand : AsmOperandClass {
178 let Name = "SetEndImm";
179 let ParserMethod = "parseSetEndImm";
181 def setend_op : Operand<i32> {
182 let PrintMethod = "printSetendOperand";
183 let ParserMatchClass = SetEndAsmOperand;
186 def MSRMaskOperand : AsmOperandClass {
187 let Name = "MSRMask";
188 let ParserMethod = "parseMSRMaskOperand";
190 def msr_mask : Operand<i32> {
191 let PrintMethod = "printMSRMaskOperand";
192 let DecoderMethod = "DecodeMSRMask";
193 let ParserMatchClass = MSRMaskOperand;
196 // Shift Right Immediate - A shift right immediate is encoded differently from
197 // other shift immediates. The imm6 field is encoded like so:
200 // 8 imm6<5:3> = '001', 8 - <imm> is encoded in imm6<2:0>
201 // 16 imm6<5:4> = '01', 16 - <imm> is encoded in imm6<3:0>
202 // 32 imm6<5> = '1', 32 - <imm> is encoded in imm6<4:0>
203 // 64 64 - <imm> is encoded in imm6<5:0>
204 def shr_imm8 : Operand<i32> {
205 let EncoderMethod = "getShiftRight8Imm";
206 let DecoderMethod = "DecodeShiftRight8Imm";
208 def shr_imm16 : Operand<i32> {
209 let EncoderMethod = "getShiftRight16Imm";
210 let DecoderMethod = "DecodeShiftRight16Imm";
212 def shr_imm32 : Operand<i32> {
213 let EncoderMethod = "getShiftRight32Imm";
214 let DecoderMethod = "DecodeShiftRight32Imm";
216 def shr_imm64 : Operand<i32> {
217 let EncoderMethod = "getShiftRight64Imm";
218 let DecoderMethod = "DecodeShiftRight64Imm";
221 //===----------------------------------------------------------------------===//
222 // ARM Assembler alias templates.
224 class ARMInstAlias<string Asm, dag Result, bit Emit = 0b1>
225 : InstAlias<Asm, Result, Emit>, Requires<[IsARM]>;
226 class tInstAlias<string Asm, dag Result, bit Emit = 0b1>
227 : InstAlias<Asm, Result, Emit>, Requires<[IsThumb]>;
228 class t2InstAlias<string Asm, dag Result, bit Emit = 0b1>
229 : InstAlias<Asm, Result, Emit>, Requires<[IsThumb2]>;
231 //===----------------------------------------------------------------------===//
232 // ARM Instruction templates.
236 class InstTemplate<AddrMode am, int sz, IndexMode im,
237 Format f, Domain d, string cstr, InstrItinClass itin>
239 let Namespace = "ARM";
244 bits<2> IndexModeBits = IM.Value;
246 bits<6> Form = F.Value;
248 bit isUnaryDataProc = 0;
249 bit canXformTo16Bit = 0;
250 // The instruction is a 16-bit flag setting Thumb instruction. Used
251 // by the parser to determine whether to require the 'S' suffix on the
252 // mnemonic (when not in an IT block) or preclude it (when in an IT block).
253 bit thumbArithFlagSetting = 0;
255 // If this is a pseudo instruction, mark it isCodeGenOnly.
256 let isCodeGenOnly = !eq(!cast<string>(f), "Pseudo");
258 // The layout of TSFlags should be kept in sync with ARMBaseInfo.h.
259 let TSFlags{4-0} = AM.Value;
260 let TSFlags{6-5} = IndexModeBits;
261 let TSFlags{12-7} = Form;
262 let TSFlags{13} = isUnaryDataProc;
263 let TSFlags{14} = canXformTo16Bit;
264 let TSFlags{17-15} = D.Value;
265 let TSFlags{18} = thumbArithFlagSetting;
267 let Constraints = cstr;
268 let Itinerary = itin;
275 class InstARM<AddrMode am, int sz, IndexMode im,
276 Format f, Domain d, string cstr, InstrItinClass itin>
277 : InstTemplate<am, sz, im, f, d, cstr, itin>, Encoding {
278 let DecoderNamespace = "ARM";
281 // This Encoding-less class is used by Thumb1 to specify the encoding bits later
282 // on by adding flavors to specific instructions.
283 class InstThumb<AddrMode am, int sz, IndexMode im,
284 Format f, Domain d, string cstr, InstrItinClass itin>
285 : InstTemplate<am, sz, im, f, d, cstr, itin> {
286 let DecoderNamespace = "Thumb";
289 class PseudoInst<dag oops, dag iops, InstrItinClass itin, list<dag> pattern>
290 : InstTemplate<AddrModeNone, 0, IndexModeNone, Pseudo,
291 GenericDomain, "", itin> {
292 let OutOperandList = oops;
293 let InOperandList = iops;
294 let Pattern = pattern;
295 let isCodeGenOnly = 1;
299 // PseudoInst that's ARM-mode only.
300 class ARMPseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
302 : PseudoInst<oops, iops, itin, pattern> {
304 list<Predicate> Predicates = [IsARM];
307 // PseudoInst that's Thumb-mode only.
308 class tPseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
310 : PseudoInst<oops, iops, itin, pattern> {
312 list<Predicate> Predicates = [IsThumb];
315 // PseudoInst that's Thumb2-mode only.
316 class t2PseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
318 : PseudoInst<oops, iops, itin, pattern> {
320 list<Predicate> Predicates = [IsThumb2];
323 class ARMPseudoExpand<dag oops, dag iops, int sz,
324 InstrItinClass itin, list<dag> pattern,
326 : ARMPseudoInst<oops, iops, sz, itin, pattern>,
327 PseudoInstExpansion<Result>;
329 class tPseudoExpand<dag oops, dag iops, int sz,
330 InstrItinClass itin, list<dag> pattern,
332 : tPseudoInst<oops, iops, sz, itin, pattern>,
333 PseudoInstExpansion<Result>;
335 class t2PseudoExpand<dag oops, dag iops, int sz,
336 InstrItinClass itin, list<dag> pattern,
338 : t2PseudoInst<oops, iops, sz, itin, pattern>,
339 PseudoInstExpansion<Result>;
341 // Almost all ARM instructions are predicable.
342 class I<dag oops, dag iops, AddrMode am, int sz,
343 IndexMode im, Format f, InstrItinClass itin,
344 string opc, string asm, string cstr,
346 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
349 let OutOperandList = oops;
350 let InOperandList = !con(iops, (ins pred:$p));
351 let AsmString = !strconcat(opc, "${p}", asm);
352 let Pattern = pattern;
353 list<Predicate> Predicates = [IsARM];
356 // A few are not predicable
357 class InoP<dag oops, dag iops, AddrMode am, int sz,
358 IndexMode im, Format f, InstrItinClass itin,
359 string opc, string asm, string cstr,
361 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
362 let OutOperandList = oops;
363 let InOperandList = iops;
364 let AsmString = !strconcat(opc, asm);
365 let Pattern = pattern;
366 let isPredicable = 0;
367 list<Predicate> Predicates = [IsARM];
370 // Same as I except it can optionally modify CPSR. Note it's modeled as an input
371 // operand since by default it's a zero register. It will become an implicit def
372 // once it's "flipped".
373 class sI<dag oops, dag iops, AddrMode am, int sz,
374 IndexMode im, Format f, InstrItinClass itin,
375 string opc, string asm, string cstr,
377 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
378 bits<4> p; // Predicate operand
379 bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
383 let OutOperandList = oops;
384 let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
385 let AsmString = !strconcat(opc, "${s}${p}", asm);
386 let Pattern = pattern;
387 list<Predicate> Predicates = [IsARM];
391 class XI<dag oops, dag iops, AddrMode am, int sz,
392 IndexMode im, Format f, InstrItinClass itin,
393 string asm, string cstr, list<dag> pattern>
394 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
395 let OutOperandList = oops;
396 let InOperandList = iops;
398 let Pattern = pattern;
399 list<Predicate> Predicates = [IsARM];
402 class AI<dag oops, dag iops, Format f, InstrItinClass itin,
403 string opc, string asm, list<dag> pattern>
404 : I<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
405 opc, asm, "", pattern>;
406 class AsI<dag oops, dag iops, Format f, InstrItinClass itin,
407 string opc, string asm, list<dag> pattern>
408 : sI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
409 opc, asm, "", pattern>;
410 class AXI<dag oops, dag iops, Format f, InstrItinClass itin,
411 string asm, list<dag> pattern>
412 : XI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
414 class AInoP<dag oops, dag iops, Format f, InstrItinClass itin,
415 string opc, string asm, list<dag> pattern>
416 : InoP<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
417 opc, asm, "", pattern>;
419 // Ctrl flow instructions
420 class ABI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
421 string opc, string asm, list<dag> pattern>
422 : I<oops, iops, AddrModeNone, 4, IndexModeNone, BrFrm, itin,
423 opc, asm, "", pattern> {
424 let Inst{27-24} = opcod;
426 class ABXI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
427 string asm, list<dag> pattern>
428 : XI<oops, iops, AddrModeNone, 4, IndexModeNone, BrFrm, itin,
430 let Inst{27-24} = opcod;
433 // BR_JT instructions
434 class JTI<dag oops, dag iops, InstrItinClass itin,
435 string asm, list<dag> pattern>
436 : XI<oops, iops, AddrModeNone, 0, IndexModeNone, BrMiscFrm, itin,
439 // Atomic load/store instructions
440 class AIldrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
441 string opc, string asm, list<dag> pattern>
442 : I<oops, iops, AddrModeNone, 4, IndexModeNone, LdStExFrm, itin,
443 opc, asm, "", pattern> {
446 let Inst{27-23} = 0b00011;
447 let Inst{22-21} = opcod;
449 let Inst{19-16} = addr;
450 let Inst{15-12} = Rt;
451 let Inst{11-0} = 0b111110011111;
453 class AIstrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
454 string opc, string asm, list<dag> pattern>
455 : I<oops, iops, AddrModeNone, 4, IndexModeNone, LdStExFrm, itin,
456 opc, asm, "", pattern> {
460 let Inst{27-23} = 0b00011;
461 let Inst{22-21} = opcod;
463 let Inst{19-16} = addr;
464 let Inst{15-12} = Rd;
465 let Inst{11-4} = 0b11111001;
468 class AIswp<bit b, dag oops, dag iops, string opc, list<dag> pattern>
469 : AI<oops, iops, MiscFrm, NoItinerary, opc, "\t$Rt, $Rt2, $addr", pattern> {
473 let Inst{27-23} = 0b00010;
475 let Inst{21-20} = 0b00;
476 let Inst{19-16} = addr;
477 let Inst{15-12} = Rt;
478 let Inst{11-4} = 0b00001001;
482 // addrmode1 instructions
483 class AI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
484 string opc, string asm, list<dag> pattern>
485 : I<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
486 opc, asm, "", pattern> {
487 let Inst{24-21} = opcod;
488 let Inst{27-26} = 0b00;
490 class AsI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
491 string opc, string asm, list<dag> pattern>
492 : sI<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
493 opc, asm, "", pattern> {
494 let Inst{24-21} = opcod;
495 let Inst{27-26} = 0b00;
497 class AXI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
498 string asm, list<dag> pattern>
499 : XI<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
501 let Inst{24-21} = opcod;
502 let Inst{27-26} = 0b00;
507 // LDR/LDRB/STR/STRB/...
508 class AI2ldst<bits<3> op, bit isLd, bit isByte, dag oops, dag iops, AddrMode am,
509 Format f, InstrItinClass itin, string opc, string asm,
511 : I<oops, iops, am, 4, IndexModeNone, f, itin, opc, asm,
513 let Inst{27-25} = op;
514 let Inst{24} = 1; // 24 == P
516 let Inst{22} = isByte;
517 let Inst{21} = 0; // 21 == W
520 // Indexed load/stores
521 class AI2ldstidx<bit isLd, bit isByte, bit isPre, dag oops, dag iops,
522 IndexMode im, Format f, InstrItinClass itin, string opc,
523 string asm, string cstr, list<dag> pattern>
524 : I<oops, iops, AddrMode2, 4, im, f, itin,
525 opc, asm, cstr, pattern> {
527 let Inst{27-26} = 0b01;
528 let Inst{24} = isPre; // P bit
529 let Inst{22} = isByte; // B bit
530 let Inst{21} = isPre; // W bit
531 let Inst{20} = isLd; // L bit
532 let Inst{15-12} = Rt;
534 class AI2stridx_reg<bit isByte, bit isPre, dag oops, dag iops,
535 IndexMode im, Format f, InstrItinClass itin, string opc,
536 string asm, string cstr, list<dag> pattern>
537 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
539 // AM2 store w/ two operands: (GPR, am2offset)
545 let Inst{23} = offset{12};
546 let Inst{19-16} = Rn;
547 let Inst{11-5} = offset{11-5};
549 let Inst{3-0} = offset{3-0};
552 class AI2stridx_imm<bit isByte, bit isPre, dag oops, dag iops,
553 IndexMode im, Format f, InstrItinClass itin, string opc,
554 string asm, string cstr, list<dag> pattern>
555 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
557 // AM2 store w/ two operands: (GPR, am2offset)
563 let Inst{23} = offset{12};
564 let Inst{19-16} = Rn;
565 let Inst{11-0} = offset{11-0};
569 // FIXME: Merge with the above class when addrmode2 gets used for STR, STRB
570 // but for now use this class for STRT and STRBT.
571 class AI2stridxT<bit isByte, bit isPre, dag oops, dag iops,
572 IndexMode im, Format f, InstrItinClass itin, string opc,
573 string asm, string cstr, list<dag> pattern>
574 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
576 // AM2 store w/ two operands: (GPR, am2offset)
578 // {13} 1 == Rm, 0 == imm12
582 let Inst{25} = addr{13};
583 let Inst{23} = addr{12};
584 let Inst{19-16} = addr{17-14};
585 let Inst{11-0} = addr{11-0};
588 // addrmode3 instructions
589 class AI3ld<bits<4> op, bit op20, dag oops, dag iops, Format f,
590 InstrItinClass itin, string opc, string asm, list<dag> pattern>
591 : I<oops, iops, AddrMode3, 4, IndexModeNone, f, itin,
592 opc, asm, "", pattern> {
595 let Inst{27-25} = 0b000;
596 let Inst{24} = 1; // P bit
597 let Inst{23} = addr{8}; // U bit
598 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
599 let Inst{21} = 0; // W bit
600 let Inst{20} = op20; // L bit
601 let Inst{19-16} = addr{12-9}; // Rn
602 let Inst{15-12} = Rt; // Rt
603 let Inst{11-8} = addr{7-4}; // imm7_4/zero
605 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
607 let DecoderMethod = "DecodeAddrMode3Instruction";
610 class AI3ldstidx<bits<4> op, bit op20, bit isPre, dag oops, dag iops,
611 IndexMode im, Format f, InstrItinClass itin, string opc,
612 string asm, string cstr, list<dag> pattern>
613 : I<oops, iops, AddrMode3, 4, im, f, itin,
614 opc, asm, cstr, pattern> {
616 let Inst{27-25} = 0b000;
617 let Inst{24} = isPre; // P bit
618 let Inst{21} = isPre; // W bit
619 let Inst{20} = op20; // L bit
620 let Inst{15-12} = Rt; // Rt
624 // FIXME: Merge with the above class when addrmode2 gets used for LDR, LDRB
625 // but for now use this class for LDRSBT, LDRHT, LDSHT.
626 class AI3ldstidxT<bits<4> op, bit isLoad, dag oops, dag iops,
627 IndexMode im, Format f, InstrItinClass itin, string opc,
628 string asm, string cstr, list<dag> pattern>
629 : I<oops, iops, AddrMode3, 4, im, f, itin, opc, asm, cstr, pattern> {
630 // {13} 1 == imm8, 0 == Rm
637 let Inst{27-25} = 0b000;
638 let Inst{24} = 0; // P bit
640 let Inst{20} = isLoad; // L bit
641 let Inst{19-16} = addr; // Rn
642 let Inst{15-12} = Rt; // Rt
647 class AI3str<bits<4> op, dag oops, dag iops, Format f, InstrItinClass itin,
648 string opc, string asm, list<dag> pattern>
649 : I<oops, iops, AddrMode3, 4, IndexModeNone, f, itin,
650 opc, asm, "", pattern> {
653 let Inst{27-25} = 0b000;
654 let Inst{24} = 1; // P bit
655 let Inst{23} = addr{8}; // U bit
656 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
657 let Inst{21} = 0; // W bit
658 let Inst{20} = 0; // L bit
659 let Inst{19-16} = addr{12-9}; // Rn
660 let Inst{15-12} = Rt; // Rt
661 let Inst{11-8} = addr{7-4}; // imm7_4/zero
663 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
664 let DecoderMethod = "DecodeAddrMode3Instruction";
667 // addrmode4 instructions
668 class AXI4<dag oops, dag iops, IndexMode im, Format f, InstrItinClass itin,
669 string asm, string cstr, list<dag> pattern>
670 : XI<oops, iops, AddrMode4, 4, im, f, itin, asm, cstr, pattern> {
675 let Inst{27-25} = 0b100;
676 let Inst{22} = 0; // S bit
677 let Inst{19-16} = Rn;
678 let Inst{15-0} = regs;
681 // Unsigned multiply, multiply-accumulate instructions.
682 class AMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
683 string opc, string asm, list<dag> pattern>
684 : I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
685 opc, asm, "", pattern> {
686 let Inst{7-4} = 0b1001;
687 let Inst{20} = 0; // S bit
688 let Inst{27-21} = opcod;
690 class AsMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
691 string opc, string asm, list<dag> pattern>
692 : sI<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
693 opc, asm, "", pattern> {
694 let Inst{7-4} = 0b1001;
695 let Inst{27-21} = opcod;
698 // Most significant word multiply
699 class AMul2I<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
700 InstrItinClass itin, string opc, string asm, list<dag> pattern>
701 : I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
702 opc, asm, "", pattern> {
706 let Inst{7-4} = opc7_4;
708 let Inst{27-21} = opcod;
709 let Inst{19-16} = Rd;
713 // MSW multiple w/ Ra operand
714 class AMul2Ia<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
715 InstrItinClass itin, string opc, string asm, list<dag> pattern>
716 : AMul2I<opcod, opc7_4, oops, iops, itin, opc, asm, pattern> {
718 let Inst{15-12} = Ra;
721 // SMUL<x><y> / SMULW<y> / SMLA<x><y> / SMLAW<x><y>
722 class AMulxyIbase<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
723 InstrItinClass itin, string opc, string asm, list<dag> pattern>
724 : I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
725 opc, asm, "", pattern> {
731 let Inst{27-21} = opcod;
732 let Inst{6-5} = bit6_5;
736 class AMulxyI<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
737 InstrItinClass itin, string opc, string asm, list<dag> pattern>
738 : AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
740 let Inst{19-16} = Rd;
743 // AMulxyI with Ra operand
744 class AMulxyIa<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
745 InstrItinClass itin, string opc, string asm, list<dag> pattern>
746 : AMulxyI<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
748 let Inst{15-12} = Ra;
751 class AMulxyI64<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
752 InstrItinClass itin, string opc, string asm, list<dag> pattern>
753 : AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
756 let Inst{19-16} = RdHi;
757 let Inst{15-12} = RdLo;
760 // Extend instructions.
761 class AExtI<bits<8> opcod, dag oops, dag iops, InstrItinClass itin,
762 string opc, string asm, list<dag> pattern>
763 : I<oops, iops, AddrModeNone, 4, IndexModeNone, ExtFrm, itin,
764 opc, asm, "", pattern> {
765 // All AExtI instructions have Rd and Rm register operands.
768 let Inst{15-12} = Rd;
770 let Inst{7-4} = 0b0111;
771 let Inst{9-8} = 0b00;
772 let Inst{27-20} = opcod;
775 // Misc Arithmetic instructions.
776 class AMiscA1I<bits<8> opcod, bits<4> opc7_4, dag oops, dag iops,
777 InstrItinClass itin, string opc, string asm, list<dag> pattern>
778 : I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
779 opc, asm, "", pattern> {
782 let Inst{27-20} = opcod;
783 let Inst{19-16} = 0b1111;
784 let Inst{15-12} = Rd;
785 let Inst{11-8} = 0b1111;
786 let Inst{7-4} = opc7_4;
791 def PKHLSLAsmOperand : AsmOperandClass {
792 let Name = "PKHLSLImm";
793 let ParserMethod = "parsePKHLSLImm";
795 def pkh_lsl_amt: Operand<i32>, ImmLeaf<i32, [{ return Imm >= 0 && Imm < 32; }]>{
796 let PrintMethod = "printPKHLSLShiftImm";
797 let ParserMatchClass = PKHLSLAsmOperand;
799 def PKHASRAsmOperand : AsmOperandClass {
800 let Name = "PKHASRImm";
801 let ParserMethod = "parsePKHASRImm";
803 def pkh_asr_amt: Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm <= 32; }]>{
804 let PrintMethod = "printPKHASRShiftImm";
805 let ParserMatchClass = PKHASRAsmOperand;
808 class APKHI<bits<8> opcod, bit tb, dag oops, dag iops, InstrItinClass itin,
809 string opc, string asm, list<dag> pattern>
810 : I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
811 opc, asm, "", pattern> {
816 let Inst{27-20} = opcod;
817 let Inst{19-16} = Rn;
818 let Inst{15-12} = Rd;
821 let Inst{5-4} = 0b01;
825 //===----------------------------------------------------------------------===//
827 // ARMPat - Same as Pat<>, but requires that the compiler be in ARM mode.
828 class ARMPat<dag pattern, dag result> : Pat<pattern, result> {
829 list<Predicate> Predicates = [IsARM];
831 class ARMV5TPat<dag pattern, dag result> : Pat<pattern, result> {
832 list<Predicate> Predicates = [IsARM, HasV5T];
834 class ARMV5TEPat<dag pattern, dag result> : Pat<pattern, result> {
835 list<Predicate> Predicates = [IsARM, HasV5TE];
837 class ARMV6Pat<dag pattern, dag result> : Pat<pattern, result> {
838 list<Predicate> Predicates = [IsARM, HasV6];
841 //===----------------------------------------------------------------------===//
842 // Thumb Instruction Format Definitions.
845 class ThumbI<dag oops, dag iops, AddrMode am, int sz,
846 InstrItinClass itin, string asm, string cstr, list<dag> pattern>
847 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
848 let OutOperandList = oops;
849 let InOperandList = iops;
851 let Pattern = pattern;
852 list<Predicate> Predicates = [IsThumb];
855 // TI - Thumb instruction.
856 class TI<dag oops, dag iops, InstrItinClass itin, string asm, list<dag> pattern>
857 : ThumbI<oops, iops, AddrModeNone, 2, itin, asm, "", pattern>;
859 // Two-address instructions
860 class TIt<dag oops, dag iops, InstrItinClass itin, string asm,
862 : ThumbI<oops, iops, AddrModeNone, 2, itin, asm, "$lhs = $dst",
865 // tBL, tBX 32-bit instructions
866 class TIx2<bits<5> opcod1, bits<2> opcod2, bit opcod3,
867 dag oops, dag iops, InstrItinClass itin, string asm,
869 : ThumbI<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>,
871 let Inst{31-27} = opcod1;
872 let Inst{15-14} = opcod2;
873 let Inst{12} = opcod3;
876 // BR_JT instructions
877 class TJTI<dag oops, dag iops, InstrItinClass itin, string asm,
879 : ThumbI<oops, iops, AddrModeNone, 0, itin, asm, "", pattern>;
882 class Thumb1I<dag oops, dag iops, AddrMode am, int sz,
883 InstrItinClass itin, string asm, string cstr, list<dag> pattern>
884 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
885 let OutOperandList = oops;
886 let InOperandList = iops;
888 let Pattern = pattern;
889 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
892 class T1I<dag oops, dag iops, InstrItinClass itin,
893 string asm, list<dag> pattern>
894 : Thumb1I<oops, iops, AddrModeNone, 2, itin, asm, "", pattern>;
895 class T1Ix2<dag oops, dag iops, InstrItinClass itin,
896 string asm, list<dag> pattern>
897 : Thumb1I<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>;
899 // Two-address instructions
900 class T1It<dag oops, dag iops, InstrItinClass itin,
901 string asm, string cstr, list<dag> pattern>
902 : Thumb1I<oops, iops, AddrModeNone, 2, itin,
905 // Thumb1 instruction that can either be predicated or set CPSR.
906 class Thumb1sI<dag oops, dag iops, AddrMode am, int sz,
908 string opc, string asm, string cstr, list<dag> pattern>
909 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
910 let OutOperandList = !con(oops, (outs s_cc_out:$s));
911 let InOperandList = !con(iops, (ins pred:$p));
912 let AsmString = !strconcat(opc, "${s}${p}", asm);
913 let Pattern = pattern;
914 let thumbArithFlagSetting = 1;
915 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
916 let DecoderNamespace = "ThumbSBit";
919 class T1sI<dag oops, dag iops, InstrItinClass itin,
920 string opc, string asm, list<dag> pattern>
921 : Thumb1sI<oops, iops, AddrModeNone, 2, itin, opc, asm, "", pattern>;
923 // Two-address instructions
924 class T1sIt<dag oops, dag iops, InstrItinClass itin,
925 string opc, string asm, list<dag> pattern>
926 : Thumb1sI<oops, iops, AddrModeNone, 2, itin, opc, asm,
927 "$Rn = $Rdn", pattern>;
929 // Thumb1 instruction that can be predicated.
930 class Thumb1pI<dag oops, dag iops, AddrMode am, int sz,
932 string opc, string asm, string cstr, list<dag> pattern>
933 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
934 let OutOperandList = oops;
935 let InOperandList = !con(iops, (ins pred:$p));
936 let AsmString = !strconcat(opc, "${p}", asm);
937 let Pattern = pattern;
938 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
941 class T1pI<dag oops, dag iops, InstrItinClass itin,
942 string opc, string asm, list<dag> pattern>
943 : Thumb1pI<oops, iops, AddrModeNone, 2, itin, opc, asm, "", pattern>;
945 // Two-address instructions
946 class T1pIt<dag oops, dag iops, InstrItinClass itin,
947 string opc, string asm, list<dag> pattern>
948 : Thumb1pI<oops, iops, AddrModeNone, 2, itin, opc, asm,
949 "$Rn = $Rdn", pattern>;
951 class T1pIs<dag oops, dag iops,
952 InstrItinClass itin, string opc, string asm, list<dag> pattern>
953 : Thumb1pI<oops, iops, AddrModeT1_s, 2, itin, opc, asm, "", pattern>;
955 class Encoding16 : Encoding {
956 let Inst{31-16} = 0x0000;
959 // A6.2 16-bit Thumb instruction encoding
960 class T1Encoding<bits<6> opcode> : Encoding16 {
961 let Inst{15-10} = opcode;
964 // A6.2.1 Shift (immediate), add, subtract, move, and compare encoding.
965 class T1General<bits<5> opcode> : Encoding16 {
966 let Inst{15-14} = 0b00;
967 let Inst{13-9} = opcode;
970 // A6.2.2 Data-processing encoding.
971 class T1DataProcessing<bits<4> opcode> : Encoding16 {
972 let Inst{15-10} = 0b010000;
973 let Inst{9-6} = opcode;
976 // A6.2.3 Special data instructions and branch and exchange encoding.
977 class T1Special<bits<4> opcode> : Encoding16 {
978 let Inst{15-10} = 0b010001;
979 let Inst{9-6} = opcode;
982 // A6.2.4 Load/store single data item encoding.
983 class T1LoadStore<bits<4> opA, bits<3> opB> : Encoding16 {
984 let Inst{15-12} = opA;
985 let Inst{11-9} = opB;
987 class T1LdStSP<bits<3> opB> : T1LoadStore<0b1001, opB>; // SP relative
989 class T1BranchCond<bits<4> opcode> : Encoding16 {
990 let Inst{15-12} = opcode;
993 // Helper classes to encode Thumb1 loads and stores. For immediates, the
994 // following bits are used for "opA" (see A6.2.4):
996 // 0b0110 => Immediate, 4 bytes
997 // 0b1000 => Immediate, 2 bytes
998 // 0b0111 => Immediate, 1 byte
999 class T1pILdStEncode<bits<3> opcode, dag oops, dag iops, AddrMode am,
1000 InstrItinClass itin, string opc, string asm,
1002 : Thumb1pI<oops, iops, am, 2, itin, opc, asm, "", pattern>,
1003 T1LoadStore<0b0101, opcode> {
1006 let Inst{8-6} = addr{5-3}; // Rm
1007 let Inst{5-3} = addr{2-0}; // Rn
1010 class T1pILdStEncodeImm<bits<4> opA, bit opB, dag oops, dag iops, AddrMode am,
1011 InstrItinClass itin, string opc, string asm,
1013 : Thumb1pI<oops, iops, am, 2, itin, opc, asm, "", pattern>,
1014 T1LoadStore<opA, {opB,?,?}> {
1017 let Inst{10-6} = addr{7-3}; // imm5
1018 let Inst{5-3} = addr{2-0}; // Rn
1022 // A6.2.5 Miscellaneous 16-bit instructions encoding.
1023 class T1Misc<bits<7> opcode> : Encoding16 {
1024 let Inst{15-12} = 0b1011;
1025 let Inst{11-5} = opcode;
1028 // Thumb2I - Thumb2 instruction. Almost all Thumb2 instructions are predicable.
1029 class Thumb2I<dag oops, dag iops, AddrMode am, int sz,
1030 InstrItinClass itin,
1031 string opc, string asm, string cstr, list<dag> pattern>
1032 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1033 let OutOperandList = oops;
1034 let InOperandList = !con(iops, (ins pred:$p));
1035 let AsmString = !strconcat(opc, "${p}", asm);
1036 let Pattern = pattern;
1037 list<Predicate> Predicates = [IsThumb2];
1038 let DecoderNamespace = "Thumb2";
1041 // Same as Thumb2I except it can optionally modify CPSR. Note it's modeled as an
1042 // input operand since by default it's a zero register. It will become an
1043 // implicit def once it's "flipped".
1045 // FIXME: This uses unified syntax so {s} comes before {p}. We should make it
1047 class Thumb2sI<dag oops, dag iops, AddrMode am, int sz,
1048 InstrItinClass itin,
1049 string opc, string asm, string cstr, list<dag> pattern>
1050 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1051 bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
1054 let OutOperandList = oops;
1055 let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
1056 let AsmString = !strconcat(opc, "${s}${p}", asm);
1057 let Pattern = pattern;
1058 list<Predicate> Predicates = [IsThumb2];
1059 let DecoderNamespace = "Thumb2";
1063 class Thumb2XI<dag oops, dag iops, AddrMode am, int sz,
1064 InstrItinClass itin,
1065 string asm, string cstr, list<dag> pattern>
1066 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1067 let OutOperandList = oops;
1068 let InOperandList = iops;
1069 let AsmString = asm;
1070 let Pattern = pattern;
1071 list<Predicate> Predicates = [IsThumb2];
1072 let DecoderNamespace = "Thumb2";
1075 class ThumbXI<dag oops, dag iops, AddrMode am, int sz,
1076 InstrItinClass itin,
1077 string asm, string cstr, list<dag> pattern>
1078 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1079 let OutOperandList = oops;
1080 let InOperandList = iops;
1081 let AsmString = asm;
1082 let Pattern = pattern;
1083 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
1084 let DecoderNamespace = "Thumb";
1087 class T2I<dag oops, dag iops, InstrItinClass itin,
1088 string opc, string asm, list<dag> pattern>
1089 : Thumb2I<oops, iops, AddrModeNone, 4, itin, opc, asm, "", pattern>;
1090 class T2Ii12<dag oops, dag iops, InstrItinClass itin,
1091 string opc, string asm, list<dag> pattern>
1092 : Thumb2I<oops, iops, AddrModeT2_i12, 4, itin, opc, asm, "",pattern>;
1093 class T2Ii8<dag oops, dag iops, InstrItinClass itin,
1094 string opc, string asm, list<dag> pattern>
1095 : Thumb2I<oops, iops, AddrModeT2_i8, 4, itin, opc, asm, "", pattern>;
1096 class T2Iso<dag oops, dag iops, InstrItinClass itin,
1097 string opc, string asm, list<dag> pattern>
1098 : Thumb2I<oops, iops, AddrModeT2_so, 4, itin, opc, asm, "", pattern>;
1099 class T2Ipc<dag oops, dag iops, InstrItinClass itin,
1100 string opc, string asm, list<dag> pattern>
1101 : Thumb2I<oops, iops, AddrModeT2_pc, 4, itin, opc, asm, "", pattern>;
1102 class T2Ii8s4<bit P, bit W, bit isLoad, dag oops, dag iops, InstrItinClass itin,
1103 string opc, string asm, list<dag> pattern>
1104 : Thumb2I<oops, iops, AddrModeT2_i8s4, 4, itin, opc, asm, "",
1109 let Inst{31-25} = 0b1110100;
1111 let Inst{23} = addr{8};
1114 let Inst{20} = isLoad;
1115 let Inst{19-16} = addr{12-9};
1116 let Inst{15-12} = Rt{3-0};
1117 let Inst{11-8} = Rt2{3-0};
1118 let Inst{7-0} = addr{7-0};
1121 class T2Ii8s4Tied<bit P, bit W, bit isLoad, dag oops, dag iops, InstrItinClass itin,
1122 string opc, string asm, list<dag> pattern>
1123 : Thumb2I<oops, iops, AddrModeT2_i8s4, 4, itin, opc, asm, "$base = $wb",
1129 let Inst{31-25} = 0b1110100;
1131 let Inst{23} = imm{8};
1134 let Inst{20} = isLoad;
1135 let Inst{19-16} = base{3-0};
1136 let Inst{15-12} = Rt{3-0};
1137 let Inst{11-8} = Rt2{3-0};
1138 let Inst{7-0} = imm{7-0};
1142 class T2sI<dag oops, dag iops, InstrItinClass itin,
1143 string opc, string asm, list<dag> pattern>
1144 : Thumb2sI<oops, iops, AddrModeNone, 4, itin, opc, asm, "", pattern>;
1146 class T2XI<dag oops, dag iops, InstrItinClass itin,
1147 string asm, list<dag> pattern>
1148 : Thumb2XI<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>;
1149 class T2JTI<dag oops, dag iops, InstrItinClass itin,
1150 string asm, list<dag> pattern>
1151 : Thumb2XI<oops, iops, AddrModeNone, 0, itin, asm, "", pattern>;
1153 // Move to/from coprocessor instructions
1154 class T2Cop<bits<4> opc, dag oops, dag iops, string asm, list<dag> pattern>
1155 : T2XI <oops, iops, NoItinerary, asm, pattern>, Requires<[IsThumb2]> {
1156 let Inst{31-28} = opc;
1159 // Two-address instructions
1160 class T2XIt<dag oops, dag iops, InstrItinClass itin,
1161 string asm, string cstr, list<dag> pattern>
1162 : Thumb2XI<oops, iops, AddrModeNone, 4, itin, asm, cstr, pattern>;
1164 // T2Ipreldst - Thumb2 pre-indexed load / store instructions.
1165 class T2Ipreldst<bit signed, bits<2> opcod, bit load, bit pre,
1167 AddrMode am, IndexMode im, InstrItinClass itin,
1168 string opc, string asm, string cstr, list<dag> pattern>
1169 : InstARM<am, 4, im, ThumbFrm, GenericDomain, cstr, itin> {
1170 let OutOperandList = oops;
1171 let InOperandList = !con(iops, (ins pred:$p));
1172 let AsmString = !strconcat(opc, "${p}", asm);
1173 let Pattern = pattern;
1174 list<Predicate> Predicates = [IsThumb2];
1175 let DecoderNamespace = "Thumb2";
1179 let Inst{31-27} = 0b11111;
1180 let Inst{26-25} = 0b00;
1181 let Inst{24} = signed;
1183 let Inst{22-21} = opcod;
1184 let Inst{20} = load;
1185 let Inst{19-16} = addr{12-9};
1186 let Inst{15-12} = Rt{3-0};
1188 // (P, W) = (1, 1) Pre-indexed or (0, 1) Post-indexed
1189 let Inst{10} = pre; // The P bit.
1190 let Inst{9} = addr{8}; // Sign bit
1191 let Inst{8} = 1; // The W bit.
1192 let Inst{7-0} = addr{7-0};
1195 // T2Ipostldst - Thumb2 post-indexed load / store instructions.
1196 class T2Ipostldst<bit signed, bits<2> opcod, bit load, bit pre,
1198 AddrMode am, IndexMode im, InstrItinClass itin,
1199 string opc, string asm, string cstr, list<dag> pattern>
1200 : InstARM<am, 4, im, ThumbFrm, GenericDomain, cstr, itin> {
1201 let OutOperandList = oops;
1202 let InOperandList = !con(iops, (ins pred:$p));
1203 let AsmString = !strconcat(opc, "${p}", asm);
1204 let Pattern = pattern;
1205 list<Predicate> Predicates = [IsThumb2];
1206 let DecoderNamespace = "Thumb2";
1211 let Inst{31-27} = 0b11111;
1212 let Inst{26-25} = 0b00;
1213 let Inst{24} = signed;
1215 let Inst{22-21} = opcod;
1216 let Inst{20} = load;
1217 let Inst{19-16} = Rn;
1218 let Inst{15-12} = Rt{3-0};
1220 // (P, W) = (1, 1) Pre-indexed or (0, 1) Post-indexed
1221 let Inst{10} = pre; // The P bit.
1222 let Inst{9} = offset{8}; // Sign bit
1223 let Inst{8} = 1; // The W bit.
1224 let Inst{7-0} = offset{7-0};
1227 // Tv5Pat - Same as Pat<>, but requires V5T Thumb mode.
1228 class Tv5Pat<dag pattern, dag result> : Pat<pattern, result> {
1229 list<Predicate> Predicates = [IsThumb, IsThumb1Only, HasV5T];
1232 // T1Pat - Same as Pat<>, but requires that the compiler be in Thumb1 mode.
1233 class T1Pat<dag pattern, dag result> : Pat<pattern, result> {
1234 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
1237 // T2v6Pat - Same as Pat<>, but requires V6T2 Thumb2 mode.
1238 class T2v6Pat<dag pattern, dag result> : Pat<pattern, result> {
1239 list<Predicate> Predicates = [IsThumb2, HasV6T2];
1242 // T2Pat - Same as Pat<>, but requires that the compiler be in Thumb2 mode.
1243 class T2Pat<dag pattern, dag result> : Pat<pattern, result> {
1244 list<Predicate> Predicates = [IsThumb2];
1247 //===----------------------------------------------------------------------===//
1249 //===----------------------------------------------------------------------===//
1250 // ARM VFP Instruction templates.
1253 // Almost all VFP instructions are predicable.
1254 class VFPI<dag oops, dag iops, AddrMode am, int sz,
1255 IndexMode im, Format f, InstrItinClass itin,
1256 string opc, string asm, string cstr, list<dag> pattern>
1257 : InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
1259 let Inst{31-28} = p;
1260 let OutOperandList = oops;
1261 let InOperandList = !con(iops, (ins pred:$p));
1262 let AsmString = !strconcat(opc, "${p}", asm);
1263 let Pattern = pattern;
1264 let PostEncoderMethod = "VFPThumb2PostEncoder";
1265 let DecoderNamespace = "VFP";
1266 list<Predicate> Predicates = [HasVFP2];
1270 class VFPXI<dag oops, dag iops, AddrMode am, int sz,
1271 IndexMode im, Format f, InstrItinClass itin,
1272 string asm, string cstr, list<dag> pattern>
1273 : InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
1275 let Inst{31-28} = p;
1276 let OutOperandList = oops;
1277 let InOperandList = iops;
1278 let AsmString = asm;
1279 let Pattern = pattern;
1280 let PostEncoderMethod = "VFPThumb2PostEncoder";
1281 let DecoderNamespace = "VFP";
1282 list<Predicate> Predicates = [HasVFP2];
1285 class VFPAI<dag oops, dag iops, Format f, InstrItinClass itin,
1286 string opc, string asm, list<dag> pattern>
1287 : VFPI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
1288 opc, asm, "", pattern> {
1289 let PostEncoderMethod = "VFPThumb2PostEncoder";
1292 // ARM VFP addrmode5 loads and stores
1293 class ADI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
1294 InstrItinClass itin,
1295 string opc, string asm, list<dag> pattern>
1296 : VFPI<oops, iops, AddrMode5, 4, IndexModeNone,
1297 VFPLdStFrm, itin, opc, asm, "", pattern> {
1298 // Instruction operands.
1302 // Encode instruction operands.
1303 let Inst{23} = addr{8}; // U (add = (U == '1'))
1304 let Inst{22} = Dd{4};
1305 let Inst{19-16} = addr{12-9}; // Rn
1306 let Inst{15-12} = Dd{3-0};
1307 let Inst{7-0} = addr{7-0}; // imm8
1309 // TODO: Mark the instructions with the appropriate subtarget info.
1310 let Inst{27-24} = opcod1;
1311 let Inst{21-20} = opcod2;
1312 let Inst{11-9} = 0b101;
1313 let Inst{8} = 1; // Double precision
1315 // Loads & stores operate on both NEON and VFP pipelines.
1316 let D = VFPNeonDomain;
1319 class ASI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
1320 InstrItinClass itin,
1321 string opc, string asm, list<dag> pattern>
1322 : VFPI<oops, iops, AddrMode5, 4, IndexModeNone,
1323 VFPLdStFrm, itin, opc, asm, "", pattern> {
1324 // Instruction operands.
1328 // Encode instruction operands.
1329 let Inst{23} = addr{8}; // U (add = (U == '1'))
1330 let Inst{22} = Sd{0};
1331 let Inst{19-16} = addr{12-9}; // Rn
1332 let Inst{15-12} = Sd{4-1};
1333 let Inst{7-0} = addr{7-0}; // imm8
1335 // TODO: Mark the instructions with the appropriate subtarget info.
1336 let Inst{27-24} = opcod1;
1337 let Inst{21-20} = opcod2;
1338 let Inst{11-9} = 0b101;
1339 let Inst{8} = 0; // Single precision
1341 // Loads & stores operate on both NEON and VFP pipelines.
1342 let D = VFPNeonDomain;
1345 // VFP Load / store multiple pseudo instructions.
1346 class PseudoVFPLdStM<dag oops, dag iops, InstrItinClass itin, string cstr,
1348 : InstARM<AddrMode4, 4, IndexModeNone, Pseudo, VFPNeonDomain,
1350 let OutOperandList = oops;
1351 let InOperandList = !con(iops, (ins pred:$p));
1352 let Pattern = pattern;
1353 list<Predicate> Predicates = [HasVFP2];
1356 // Load / store multiple
1357 class AXDI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
1358 string asm, string cstr, list<dag> pattern>
1359 : VFPXI<oops, iops, AddrMode4, 4, im,
1360 VFPLdStMulFrm, itin, asm, cstr, pattern> {
1361 // Instruction operands.
1365 // Encode instruction operands.
1366 let Inst{19-16} = Rn;
1367 let Inst{22} = regs{12};
1368 let Inst{15-12} = regs{11-8};
1369 let Inst{7-0} = regs{7-0};
1371 // TODO: Mark the instructions with the appropriate subtarget info.
1372 let Inst{27-25} = 0b110;
1373 let Inst{11-9} = 0b101;
1374 let Inst{8} = 1; // Double precision
1377 class AXSI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
1378 string asm, string cstr, list<dag> pattern>
1379 : VFPXI<oops, iops, AddrMode4, 4, im,
1380 VFPLdStMulFrm, itin, asm, cstr, pattern> {
1381 // Instruction operands.
1385 // Encode instruction operands.
1386 let Inst{19-16} = Rn;
1387 let Inst{22} = regs{8};
1388 let Inst{15-12} = regs{12-9};
1389 let Inst{7-0} = regs{7-0};
1391 // TODO: Mark the instructions with the appropriate subtarget info.
1392 let Inst{27-25} = 0b110;
1393 let Inst{11-9} = 0b101;
1394 let Inst{8} = 0; // Single precision
1397 // Double precision, unary
1398 class ADuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1399 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1400 string asm, list<dag> pattern>
1401 : VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
1402 // Instruction operands.
1406 // Encode instruction operands.
1407 let Inst{3-0} = Dm{3-0};
1408 let Inst{5} = Dm{4};
1409 let Inst{15-12} = Dd{3-0};
1410 let Inst{22} = Dd{4};
1412 let Inst{27-23} = opcod1;
1413 let Inst{21-20} = opcod2;
1414 let Inst{19-16} = opcod3;
1415 let Inst{11-9} = 0b101;
1416 let Inst{8} = 1; // Double precision
1417 let Inst{7-6} = opcod4;
1418 let Inst{4} = opcod5;
1421 // Double precision, binary
1422 class ADbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1423 dag iops, InstrItinClass itin, string opc, string asm,
1425 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1426 // Instruction operands.
1431 // Encode instruction operands.
1432 let Inst{3-0} = Dm{3-0};
1433 let Inst{5} = Dm{4};
1434 let Inst{19-16} = Dn{3-0};
1435 let Inst{7} = Dn{4};
1436 let Inst{15-12} = Dd{3-0};
1437 let Inst{22} = Dd{4};
1439 let Inst{27-23} = opcod1;
1440 let Inst{21-20} = opcod2;
1441 let Inst{11-9} = 0b101;
1442 let Inst{8} = 1; // Double precision
1447 // Single precision, unary
1448 class ASuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1449 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1450 string asm, list<dag> pattern>
1451 : VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
1452 // Instruction operands.
1456 // Encode instruction operands.
1457 let Inst{3-0} = Sm{4-1};
1458 let Inst{5} = Sm{0};
1459 let Inst{15-12} = Sd{4-1};
1460 let Inst{22} = Sd{0};
1462 let Inst{27-23} = opcod1;
1463 let Inst{21-20} = opcod2;
1464 let Inst{19-16} = opcod3;
1465 let Inst{11-9} = 0b101;
1466 let Inst{8} = 0; // Single precision
1467 let Inst{7-6} = opcod4;
1468 let Inst{4} = opcod5;
1471 // Single precision unary, if no NEON. Same as ASuI except not available if
1473 class ASuIn<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1474 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1475 string asm, list<dag> pattern>
1476 : ASuI<opcod1, opcod2, opcod3, opcod4, opcod5, oops, iops, itin, opc, asm,
1478 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1481 // Single precision, binary
1482 class ASbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops, dag iops,
1483 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1484 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1485 // Instruction operands.
1490 // Encode instruction operands.
1491 let Inst{3-0} = Sm{4-1};
1492 let Inst{5} = Sm{0};
1493 let Inst{19-16} = Sn{4-1};
1494 let Inst{7} = Sn{0};
1495 let Inst{15-12} = Sd{4-1};
1496 let Inst{22} = Sd{0};
1498 let Inst{27-23} = opcod1;
1499 let Inst{21-20} = opcod2;
1500 let Inst{11-9} = 0b101;
1501 let Inst{8} = 0; // Single precision
1506 // Single precision binary, if no NEON. Same as ASbI except not available if
1508 class ASbIn<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1509 dag iops, InstrItinClass itin, string opc, string asm,
1511 : ASbI<opcod1, opcod2, op6, op4, oops, iops, itin, opc, asm, pattern> {
1512 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1514 // Instruction operands.
1519 // Encode instruction operands.
1520 let Inst{3-0} = Sm{4-1};
1521 let Inst{5} = Sm{0};
1522 let Inst{19-16} = Sn{4-1};
1523 let Inst{7} = Sn{0};
1524 let Inst{15-12} = Sd{4-1};
1525 let Inst{22} = Sd{0};
1528 // VFP conversion instructions
1529 class AVConv1I<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
1530 dag oops, dag iops, InstrItinClass itin, string opc, string asm,
1532 : VFPAI<oops, iops, VFPConv1Frm, itin, opc, asm, pattern> {
1533 let Inst{27-23} = opcod1;
1534 let Inst{21-20} = opcod2;
1535 let Inst{19-16} = opcod3;
1536 let Inst{11-8} = opcod4;
1541 // VFP conversion between floating-point and fixed-point
1542 class AVConv1XI<bits<5> op1, bits<2> op2, bits<4> op3, bits<4> op4, bit op5,
1543 dag oops, dag iops, InstrItinClass itin, string opc, string asm,
1545 : AVConv1I<op1, op2, op3, op4, oops, iops, itin, opc, asm, pattern> {
1546 // size (fixed-point number): sx == 0 ? 16 : 32
1547 let Inst{7} = op5; // sx
1550 // VFP conversion instructions, if no NEON
1551 class AVConv1In<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
1552 dag oops, dag iops, InstrItinClass itin,
1553 string opc, string asm, list<dag> pattern>
1554 : AVConv1I<opcod1, opcod2, opcod3, opcod4, oops, iops, itin, opc, asm,
1556 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1559 class AVConvXI<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops, Format f,
1560 InstrItinClass itin,
1561 string opc, string asm, list<dag> pattern>
1562 : VFPAI<oops, iops, f, itin, opc, asm, pattern> {
1563 let Inst{27-20} = opcod1;
1564 let Inst{11-8} = opcod2;
1568 class AVConv2I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1569 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1570 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv2Frm, itin, opc, asm, pattern>;
1572 class AVConv3I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1573 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1574 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv3Frm, itin, opc, asm, pattern>;
1576 class AVConv4I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1577 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1578 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv4Frm, itin, opc, asm, pattern>;
1580 class AVConv5I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1581 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1582 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv5Frm, itin, opc, asm, pattern>;
1584 //===----------------------------------------------------------------------===//
1586 //===----------------------------------------------------------------------===//
1587 // ARM NEON Instruction templates.
1590 class NeonI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
1591 InstrItinClass itin, string opc, string dt, string asm, string cstr,
1593 : InstARM<am, 4, im, f, NeonDomain, cstr, itin> {
1594 let OutOperandList = oops;
1595 let InOperandList = !con(iops, (ins pred:$p));
1596 let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
1597 let Pattern = pattern;
1598 list<Predicate> Predicates = [HasNEON];
1599 let DecoderNamespace = "NEON";
1602 // Same as NeonI except it does not have a "data type" specifier.
1603 class NeonXI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
1604 InstrItinClass itin, string opc, string asm, string cstr,
1606 : InstARM<am, 4, im, f, NeonDomain, cstr, itin> {
1607 let OutOperandList = oops;
1608 let InOperandList = !con(iops, (ins pred:$p));
1609 let AsmString = !strconcat(opc, "${p}", "\t", asm);
1610 let Pattern = pattern;
1611 list<Predicate> Predicates = [HasNEON];
1612 let DecoderNamespace = "NEON";
1615 class NLdSt<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
1616 dag oops, dag iops, InstrItinClass itin,
1617 string opc, string dt, string asm, string cstr, list<dag> pattern>
1618 : NeonI<oops, iops, AddrMode6, IndexModeNone, NLdStFrm, itin, opc, dt, asm,
1620 let Inst{31-24} = 0b11110100;
1621 let Inst{23} = op23;
1622 let Inst{21-20} = op21_20;
1623 let Inst{11-8} = op11_8;
1624 let Inst{7-4} = op7_4;
1626 let PostEncoderMethod = "NEONThumb2LoadStorePostEncoder";
1627 let DecoderNamespace = "NEONLoadStore";
1633 let Inst{22} = Vd{4};
1634 let Inst{15-12} = Vd{3-0};
1635 let Inst{19-16} = Rn{3-0};
1636 let Inst{3-0} = Rm{3-0};
1639 class NLdStLn<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
1640 dag oops, dag iops, InstrItinClass itin,
1641 string opc, string dt, string asm, string cstr, list<dag> pattern>
1642 : NLdSt<op23, op21_20, op11_8, op7_4, oops, iops, itin, opc,
1643 dt, asm, cstr, pattern> {
1647 class PseudoNLdSt<dag oops, dag iops, InstrItinClass itin, string cstr>
1648 : InstARM<AddrMode6, 4, IndexModeNone, Pseudo, NeonDomain, cstr,
1650 let OutOperandList = oops;
1651 let InOperandList = !con(iops, (ins pred:$p));
1652 list<Predicate> Predicates = [HasNEON];
1655 class PseudoNeonI<dag oops, dag iops, InstrItinClass itin, string cstr,
1657 : InstARM<AddrModeNone, 4, IndexModeNone, Pseudo, NeonDomain, cstr,
1659 let OutOperandList = oops;
1660 let InOperandList = !con(iops, (ins pred:$p));
1661 let Pattern = pattern;
1662 list<Predicate> Predicates = [HasNEON];
1665 class NDataI<dag oops, dag iops, Format f, InstrItinClass itin,
1666 string opc, string dt, string asm, string cstr, list<dag> pattern>
1667 : NeonI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, dt, asm, cstr,
1669 let Inst{31-25} = 0b1111001;
1670 let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
1671 let DecoderNamespace = "NEONData";
1674 class NDataXI<dag oops, dag iops, Format f, InstrItinClass itin,
1675 string opc, string asm, string cstr, list<dag> pattern>
1676 : NeonXI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, asm,
1678 let Inst{31-25} = 0b1111001;
1679 let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
1680 let DecoderNamespace = "NEONData";
1683 // NEON "one register and a modified immediate" format.
1684 class N1ModImm<bit op23, bits<3> op21_19, bits<4> op11_8, bit op7, bit op6,
1686 dag oops, dag iops, InstrItinClass itin,
1687 string opc, string dt, string asm, string cstr,
1689 : NDataI<oops, iops, N1RegModImmFrm, itin, opc, dt, asm, cstr, pattern> {
1690 let Inst{23} = op23;
1691 let Inst{21-19} = op21_19;
1692 let Inst{11-8} = op11_8;
1698 // Instruction operands.
1702 let Inst{15-12} = Vd{3-0};
1703 let Inst{22} = Vd{4};
1704 let Inst{24} = SIMM{7};
1705 let Inst{18-16} = SIMM{6-4};
1706 let Inst{3-0} = SIMM{3-0};
1707 let DecoderMethod = "DecodeNEONModImmInstruction";
1710 // NEON 2 vector register format.
1711 class N2V<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
1712 bits<5> op11_7, bit op6, bit op4,
1713 dag oops, dag iops, InstrItinClass itin,
1714 string opc, string dt, string asm, string cstr, list<dag> pattern>
1715 : NDataI<oops, iops, N2RegFrm, itin, opc, dt, asm, cstr, pattern> {
1716 let Inst{24-23} = op24_23;
1717 let Inst{21-20} = op21_20;
1718 let Inst{19-18} = op19_18;
1719 let Inst{17-16} = op17_16;
1720 let Inst{11-7} = op11_7;
1724 // Instruction operands.
1728 let Inst{15-12} = Vd{3-0};
1729 let Inst{22} = Vd{4};
1730 let Inst{3-0} = Vm{3-0};
1731 let Inst{5} = Vm{4};
1734 // Same as N2V except it doesn't have a datatype suffix.
1735 class N2VX<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
1736 bits<5> op11_7, bit op6, bit op4,
1737 dag oops, dag iops, InstrItinClass itin,
1738 string opc, string asm, string cstr, list<dag> pattern>
1739 : NDataXI<oops, iops, N2RegFrm, itin, opc, asm, cstr, pattern> {
1740 let Inst{24-23} = op24_23;
1741 let Inst{21-20} = op21_20;
1742 let Inst{19-18} = op19_18;
1743 let Inst{17-16} = op17_16;
1744 let Inst{11-7} = op11_7;
1748 // Instruction operands.
1752 let Inst{15-12} = Vd{3-0};
1753 let Inst{22} = Vd{4};
1754 let Inst{3-0} = Vm{3-0};
1755 let Inst{5} = Vm{4};
1758 // NEON 2 vector register with immediate.
1759 class N2VImm<bit op24, bit op23, bits<4> op11_8, bit op7, bit op6, bit op4,
1760 dag oops, dag iops, Format f, InstrItinClass itin,
1761 string opc, string dt, string asm, string cstr, list<dag> pattern>
1762 : NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1763 let Inst{24} = op24;
1764 let Inst{23} = op23;
1765 let Inst{11-8} = op11_8;
1770 // Instruction operands.
1775 let Inst{15-12} = Vd{3-0};
1776 let Inst{22} = Vd{4};
1777 let Inst{3-0} = Vm{3-0};
1778 let Inst{5} = Vm{4};
1779 let Inst{21-16} = SIMM{5-0};
1782 // NEON 3 vector register format.
1784 class N3VCommon<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1785 bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
1786 string opc, string dt, string asm, string cstr,
1788 : NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1789 let Inst{24} = op24;
1790 let Inst{23} = op23;
1791 let Inst{21-20} = op21_20;
1792 let Inst{11-8} = op11_8;
1797 class N3V<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6, bit op4,
1798 dag oops, dag iops, Format f, InstrItinClass itin,
1799 string opc, string dt, string asm, string cstr, list<dag> pattern>
1800 : N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
1801 oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1803 // Instruction operands.
1808 let Inst{15-12} = Vd{3-0};
1809 let Inst{22} = Vd{4};
1810 let Inst{19-16} = Vn{3-0};
1811 let Inst{7} = Vn{4};
1812 let Inst{3-0} = Vm{3-0};
1813 let Inst{5} = Vm{4};
1816 class N3VLane32<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1817 bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
1818 string opc, string dt, string asm, string cstr,
1820 : N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
1821 oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1823 // Instruction operands.
1829 let Inst{15-12} = Vd{3-0};
1830 let Inst{22} = Vd{4};
1831 let Inst{19-16} = Vn{3-0};
1832 let Inst{7} = Vn{4};
1833 let Inst{3-0} = Vm{3-0};
1837 class N3VLane16<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1838 bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
1839 string opc, string dt, string asm, string cstr,
1841 : N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
1842 oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1844 // Instruction operands.
1850 let Inst{15-12} = Vd{3-0};
1851 let Inst{22} = Vd{4};
1852 let Inst{19-16} = Vn{3-0};
1853 let Inst{7} = Vn{4};
1854 let Inst{2-0} = Vm{2-0};
1855 let Inst{5} = lane{1};
1856 let Inst{3} = lane{0};
1859 // Same as N3V except it doesn't have a data type suffix.
1860 class N3VX<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1862 dag oops, dag iops, Format f, InstrItinClass itin,
1863 string opc, string asm, string cstr, list<dag> pattern>
1864 : NDataXI<oops, iops, f, itin, opc, asm, cstr, pattern> {
1865 let Inst{24} = op24;
1866 let Inst{23} = op23;
1867 let Inst{21-20} = op21_20;
1868 let Inst{11-8} = op11_8;
1872 // Instruction operands.
1877 let Inst{15-12} = Vd{3-0};
1878 let Inst{22} = Vd{4};
1879 let Inst{19-16} = Vn{3-0};
1880 let Inst{7} = Vn{4};
1881 let Inst{3-0} = Vm{3-0};
1882 let Inst{5} = Vm{4};
1885 // NEON VMOVs between scalar and core registers.
1886 class NVLaneOp<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1887 dag oops, dag iops, Format f, InstrItinClass itin,
1888 string opc, string dt, string asm, list<dag> pattern>
1889 : InstARM<AddrModeNone, 4, IndexModeNone, f, NeonDomain,
1891 let Inst{27-20} = opcod1;
1892 let Inst{11-8} = opcod2;
1893 let Inst{6-5} = opcod3;
1895 // A8.6.303, A8.6.328, A8.6.329
1896 let Inst{3-0} = 0b0000;
1898 let OutOperandList = oops;
1899 let InOperandList = !con(iops, (ins pred:$p));
1900 let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
1901 let Pattern = pattern;
1902 list<Predicate> Predicates = [HasNEON];
1904 let PostEncoderMethod = "NEONThumb2DupPostEncoder";
1905 let DecoderNamespace = "NEONDup";
1912 let Inst{31-28} = p{3-0};
1914 let Inst{19-16} = V{3-0};
1915 let Inst{15-12} = R{3-0};
1917 class NVGetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1918 dag oops, dag iops, InstrItinClass itin,
1919 string opc, string dt, string asm, list<dag> pattern>
1920 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NGetLnFrm, itin,
1921 opc, dt, asm, pattern>;
1922 class NVSetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1923 dag oops, dag iops, InstrItinClass itin,
1924 string opc, string dt, string asm, list<dag> pattern>
1925 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NSetLnFrm, itin,
1926 opc, dt, asm, pattern>;
1927 class NVDup<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1928 dag oops, dag iops, InstrItinClass itin,
1929 string opc, string dt, string asm, list<dag> pattern>
1930 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NDupFrm, itin,
1931 opc, dt, asm, pattern>;
1933 // Vector Duplicate Lane (from scalar to all elements)
1934 class NVDupLane<bits<4> op19_16, bit op6, dag oops, dag iops,
1935 InstrItinClass itin, string opc, string dt, string asm,
1937 : NDataI<oops, iops, NVDupLnFrm, itin, opc, dt, asm, "", pattern> {
1938 let Inst{24-23} = 0b11;
1939 let Inst{21-20} = 0b11;
1940 let Inst{19-16} = op19_16;
1941 let Inst{11-7} = 0b11000;
1949 let Inst{22} = Vd{4};
1950 let Inst{15-12} = Vd{3-0};
1951 let Inst{5} = Vm{4};
1952 let Inst{3-0} = Vm{3-0};
1955 // NEONFPPat - Same as Pat<>, but requires that the compiler be using NEON
1956 // for single-precision FP.
1957 class NEONFPPat<dag pattern, dag result> : Pat<pattern, result> {
1958 list<Predicate> Predicates = [HasNEON,UseNEONForFP];