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 def CondCodeOperand : AsmOperandClass {
135 let Name = "CondCode";
136 let SuperClasses = [];
139 def CCOutOperand : AsmOperandClass {
141 let SuperClasses = [];
144 def MemBarrierOptOperand : AsmOperandClass {
145 let Name = "MemBarrierOpt";
146 let SuperClasses = [];
147 let ParserMethod = "tryParseMemBarrierOptOperand";
150 def ProcIFlagsOperand : AsmOperandClass {
151 let Name = "ProcIFlags";
152 let SuperClasses = [];
153 let ParserMethod = "tryParseProcIFlagsOperand";
156 def MSRMaskOperand : AsmOperandClass {
157 let Name = "MSRMask";
158 let SuperClasses = [];
159 let ParserMethod = "tryParseMSRMaskOperand";
162 // ARM imod and iflag operands, used only by the CPS instruction.
163 def imod_op : Operand<i32> {
164 let PrintMethod = "printCPSIMod";
167 def iflags_op : Operand<i32> {
168 let PrintMethod = "printCPSIFlag";
169 let ParserMatchClass = ProcIFlagsOperand;
172 // ARM Predicate operand. Default to 14 = always (AL). Second part is CC
173 // register whose default is 0 (no register).
174 def pred : PredicateOperand<OtherVT, (ops i32imm, CCR),
175 (ops (i32 14), (i32 zero_reg))> {
176 let PrintMethod = "printPredicateOperand";
177 let ParserMatchClass = CondCodeOperand;
180 // Conditional code result for instructions whose 's' bit is set, e.g. subs.
181 def cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 zero_reg))> {
182 let EncoderMethod = "getCCOutOpValue";
183 let PrintMethod = "printSBitModifierOperand";
184 let ParserMatchClass = CCOutOperand;
187 // Same as cc_out except it defaults to setting CPSR.
188 def s_cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 CPSR))> {
189 let EncoderMethod = "getCCOutOpValue";
190 let PrintMethod = "printSBitModifierOperand";
191 let ParserMatchClass = CCOutOperand;
194 // ARM special operands for disassembly only.
196 def setend_op : Operand<i32> {
197 let PrintMethod = "printSetendOperand";
200 def msr_mask : Operand<i32> {
201 let PrintMethod = "printMSRMaskOperand";
202 let ParserMatchClass = MSRMaskOperand;
205 // Shift Right Immediate - A shift right immediate is encoded differently from
206 // other shift immediates. The imm6 field is encoded like so:
209 // 8 imm6<5:3> = '001', 8 - <imm> is encoded in imm6<2:0>
210 // 16 imm6<5:4> = '01', 16 - <imm> is encoded in imm6<3:0>
211 // 32 imm6<5> = '1', 32 - <imm> is encoded in imm6<4:0>
212 // 64 64 - <imm> is encoded in imm6<5:0>
213 def shr_imm8 : Operand<i32> {
214 let EncoderMethod = "getShiftRight8Imm";
216 def shr_imm16 : Operand<i32> {
217 let EncoderMethod = "getShiftRight16Imm";
219 def shr_imm32 : Operand<i32> {
220 let EncoderMethod = "getShiftRight32Imm";
222 def shr_imm64 : Operand<i32> {
223 let EncoderMethod = "getShiftRight64Imm";
226 //===----------------------------------------------------------------------===//
227 // ARM Instruction templates.
230 class InstTemplate<AddrMode am, int sz, IndexMode im,
231 Format f, Domain d, string cstr, InstrItinClass itin>
233 let Namespace = "ARM";
238 bits<2> IndexModeBits = IM.Value;
240 bits<6> Form = F.Value;
242 bit isUnaryDataProc = 0;
243 bit canXformTo16Bit = 0;
245 // If this is a pseudo instruction, mark it isCodeGenOnly.
246 let isCodeGenOnly = !eq(!cast<string>(f), "Pseudo");
248 // The layout of TSFlags should be kept in sync with ARMBaseInstrInfo.h.
249 let TSFlags{4-0} = AM.Value;
250 let TSFlags{6-5} = IndexModeBits;
251 let TSFlags{12-7} = Form;
252 let TSFlags{13} = isUnaryDataProc;
253 let TSFlags{14} = canXformTo16Bit;
254 let TSFlags{17-15} = D.Value;
256 let Constraints = cstr;
257 let Itinerary = itin;
264 class InstARM<AddrMode am, int sz, IndexMode im,
265 Format f, Domain d, string cstr, InstrItinClass itin>
266 : InstTemplate<am, sz, im, f, d, cstr, itin>, Encoding {
267 let DecoderNamespace = "ARM";
270 // This Encoding-less class is used by Thumb1 to specify the encoding bits later
271 // on by adding flavors to specific instructions.
272 class InstThumb<AddrMode am, int sz, IndexMode im,
273 Format f, Domain d, string cstr, InstrItinClass itin>
274 : InstTemplate<am, sz, im, f, d, cstr, itin> {
275 let DecoderNamespace = "Thumb";
278 class PseudoInst<dag oops, dag iops, InstrItinClass itin, list<dag> pattern>
279 : InstTemplate<AddrModeNone, 0, IndexModeNone, Pseudo,
280 GenericDomain, "", itin> {
281 let OutOperandList = oops;
282 let InOperandList = iops;
283 let Pattern = pattern;
284 let isCodeGenOnly = 1;
288 // PseudoInst that's ARM-mode only.
289 class ARMPseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
291 : PseudoInst<oops, iops, itin, pattern> {
293 list<Predicate> Predicates = [IsARM];
296 // PseudoInst that's Thumb-mode only.
297 class tPseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
299 : PseudoInst<oops, iops, itin, pattern> {
301 list<Predicate> Predicates = [IsThumb];
304 // PseudoInst that's Thumb2-mode only.
305 class t2PseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
307 : PseudoInst<oops, iops, itin, pattern> {
309 list<Predicate> Predicates = [IsThumb2];
312 class ARMPseudoExpand<dag oops, dag iops, int sz,
313 InstrItinClass itin, list<dag> pattern,
315 : ARMPseudoInst<oops, iops, sz, itin, pattern>,
316 PseudoInstExpansion<Result>;
318 class tPseudoExpand<dag oops, dag iops, int sz,
319 InstrItinClass itin, list<dag> pattern,
321 : tPseudoInst<oops, iops, sz, itin, pattern>,
322 PseudoInstExpansion<Result>;
324 class t2PseudoExpand<dag oops, dag iops, int sz,
325 InstrItinClass itin, list<dag> pattern,
327 : t2PseudoInst<oops, iops, sz, itin, pattern>,
328 PseudoInstExpansion<Result>;
330 // Almost all ARM instructions are predicable.
331 class I<dag oops, dag iops, AddrMode am, int sz,
332 IndexMode im, Format f, InstrItinClass itin,
333 string opc, string asm, string cstr,
335 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
338 let OutOperandList = oops;
339 let InOperandList = !con(iops, (ins pred:$p));
340 let AsmString = !strconcat(opc, "${p}", asm);
341 let Pattern = pattern;
342 list<Predicate> Predicates = [IsARM];
345 // A few are not predicable
346 class InoP<dag oops, dag iops, AddrMode am, int sz,
347 IndexMode im, Format f, InstrItinClass itin,
348 string opc, string asm, string cstr,
350 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
351 let OutOperandList = oops;
352 let InOperandList = iops;
353 let AsmString = !strconcat(opc, asm);
354 let Pattern = pattern;
355 let isPredicable = 0;
356 list<Predicate> Predicates = [IsARM];
359 // Same as I except it can optionally modify CPSR. Note it's modeled as an input
360 // operand since by default it's a zero register. It will become an implicit def
361 // once it's "flipped".
362 class sI<dag oops, dag iops, AddrMode am, int sz,
363 IndexMode im, Format f, InstrItinClass itin,
364 string opc, string asm, string cstr,
366 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
367 bits<4> p; // Predicate operand
368 bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
372 let OutOperandList = oops;
373 let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
374 let AsmString = !strconcat(opc, "${s}${p}", asm);
375 let Pattern = pattern;
376 list<Predicate> Predicates = [IsARM];
380 class XI<dag oops, dag iops, AddrMode am, int sz,
381 IndexMode im, Format f, InstrItinClass itin,
382 string asm, string cstr, list<dag> pattern>
383 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
384 let OutOperandList = oops;
385 let InOperandList = iops;
387 let Pattern = pattern;
388 list<Predicate> Predicates = [IsARM];
391 class AI<dag oops, dag iops, Format f, InstrItinClass itin,
392 string opc, string asm, list<dag> pattern>
393 : I<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
394 opc, asm, "", pattern>;
395 class AsI<dag oops, dag iops, Format f, InstrItinClass itin,
396 string opc, string asm, list<dag> pattern>
397 : sI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
398 opc, asm, "", pattern>;
399 class AXI<dag oops, dag iops, Format f, InstrItinClass itin,
400 string asm, list<dag> pattern>
401 : XI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
403 class AInoP<dag oops, dag iops, Format f, InstrItinClass itin,
404 string opc, string asm, list<dag> pattern>
405 : InoP<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
406 opc, asm, "", pattern>;
408 // Ctrl flow instructions
409 class ABI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
410 string opc, string asm, list<dag> pattern>
411 : I<oops, iops, AddrModeNone, 4, IndexModeNone, BrFrm, itin,
412 opc, asm, "", pattern> {
413 let Inst{27-24} = opcod;
415 class ABXI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
416 string asm, list<dag> pattern>
417 : XI<oops, iops, AddrModeNone, 4, IndexModeNone, BrFrm, itin,
419 let Inst{27-24} = opcod;
422 // BR_JT instructions
423 class JTI<dag oops, dag iops, InstrItinClass itin,
424 string asm, list<dag> pattern>
425 : XI<oops, iops, AddrModeNone, 0, IndexModeNone, BrMiscFrm, itin,
428 // Atomic load/store instructions
429 class AIldrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
430 string opc, string asm, list<dag> pattern>
431 : I<oops, iops, AddrModeNone, 4, IndexModeNone, LdStExFrm, itin,
432 opc, asm, "", pattern> {
435 let Inst{27-23} = 0b00011;
436 let Inst{22-21} = opcod;
438 let Inst{19-16} = Rn;
439 let Inst{15-12} = Rt;
440 let Inst{11-0} = 0b111110011111;
442 class AIstrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
443 string opc, string asm, list<dag> pattern>
444 : I<oops, iops, AddrModeNone, 4, IndexModeNone, LdStExFrm, itin,
445 opc, asm, "", pattern> {
449 let Inst{27-23} = 0b00011;
450 let Inst{22-21} = opcod;
452 let Inst{19-16} = addr;
453 let Inst{15-12} = Rd;
454 let Inst{11-4} = 0b11111001;
457 class AIswp<bit b, dag oops, dag iops, string opc, list<dag> pattern>
458 : AI<oops, iops, MiscFrm, NoItinerary, opc, "\t$Rt, $Rt2, [$Rn]", pattern> {
462 let Inst{27-23} = 0b00010;
464 let Inst{21-20} = 0b00;
465 let Inst{19-16} = Rn;
466 let Inst{15-12} = Rt;
467 let Inst{11-4} = 0b00001001;
471 // addrmode1 instructions
472 class AI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
473 string opc, string asm, list<dag> pattern>
474 : I<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
475 opc, asm, "", pattern> {
476 let Inst{24-21} = opcod;
477 let Inst{27-26} = 0b00;
479 class AsI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
480 string opc, string asm, list<dag> pattern>
481 : sI<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
482 opc, asm, "", pattern> {
483 let Inst{24-21} = opcod;
484 let Inst{27-26} = 0b00;
486 class AXI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
487 string asm, list<dag> pattern>
488 : XI<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
490 let Inst{24-21} = opcod;
491 let Inst{27-26} = 0b00;
496 // LDR/LDRB/STR/STRB/...
497 class AI2ldst<bits<3> op, bit isLd, bit isByte, dag oops, dag iops, AddrMode am,
498 Format f, InstrItinClass itin, string opc, string asm,
500 : I<oops, iops, am, 4, IndexModeNone, f, itin, opc, asm,
502 let Inst{27-25} = op;
503 let Inst{24} = 1; // 24 == P
505 let Inst{22} = isByte;
506 let Inst{21} = 0; // 21 == W
509 // Indexed load/stores
510 class AI2ldstidx<bit isLd, bit isByte, bit isPre, dag oops, dag iops,
511 IndexMode im, Format f, InstrItinClass itin, string opc,
512 string asm, string cstr, list<dag> pattern>
513 : I<oops, iops, AddrMode2, 4, im, f, itin,
514 opc, asm, cstr, pattern> {
516 let Inst{27-26} = 0b01;
517 let Inst{24} = isPre; // P bit
518 let Inst{22} = isByte; // B bit
519 let Inst{21} = isPre; // W bit
520 let Inst{20} = isLd; // L bit
521 let Inst{15-12} = Rt;
523 class AI2stridx<bit isByte, bit isPre, dag oops, dag iops,
524 IndexMode im, Format f, InstrItinClass itin, string opc,
525 string asm, string cstr, list<dag> pattern>
526 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
528 // AM2 store w/ two operands: (GPR, am2offset)
529 // {13} 1 == Rm, 0 == imm12
534 let Inst{25} = offset{13};
535 let Inst{23} = offset{12};
536 let Inst{19-16} = Rn;
537 let Inst{11-0} = offset{11-0};
539 // FIXME: Merge with the above class when addrmode2 gets used for STR, STRB
540 // but for now use this class for STRT and STRBT.
541 class AI2stridxT<bit isByte, bit isPre, dag oops, dag iops,
542 IndexMode im, Format f, InstrItinClass itin, string opc,
543 string asm, string cstr, list<dag> pattern>
544 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
546 // AM2 store w/ two operands: (GPR, am2offset)
548 // {13} 1 == Rm, 0 == imm12
552 let Inst{25} = addr{13};
553 let Inst{23} = addr{12};
554 let Inst{19-16} = addr{17-14};
555 let Inst{11-0} = addr{11-0};
558 // addrmode3 instructions
559 class AI3ld<bits<4> op, bit op20, dag oops, dag iops, Format f,
560 InstrItinClass itin, string opc, string asm, list<dag> pattern>
561 : I<oops, iops, AddrMode3, 4, IndexModeNone, f, itin,
562 opc, asm, "", pattern> {
565 let Inst{27-25} = 0b000;
566 let Inst{24} = 1; // P bit
567 let Inst{23} = addr{8}; // U bit
568 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
569 let Inst{21} = 0; // W bit
570 let Inst{20} = op20; // L bit
571 let Inst{19-16} = addr{12-9}; // Rn
572 let Inst{15-12} = Rt; // Rt
573 let Inst{11-8} = addr{7-4}; // imm7_4/zero
575 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
578 class AI3ldstidx<bits<4> op, bit op20, bit isLd, bit isPre, dag oops, dag iops,
579 IndexMode im, Format f, InstrItinClass itin, string opc,
580 string asm, string cstr, list<dag> pattern>
581 : I<oops, iops, AddrMode3, 4, im, f, itin,
582 opc, asm, cstr, pattern> {
584 let Inst{27-25} = 0b000;
585 let Inst{24} = isPre; // P bit
586 let Inst{21} = isPre; // W bit
587 let Inst{20} = op20; // L bit
588 let Inst{15-12} = Rt; // Rt
592 // FIXME: Merge with the above class when addrmode2 gets used for LDR, LDRB
593 // but for now use this class for LDRSBT, LDRHT, LDSHT.
594 class AI3ldstidxT<bits<4> op, bit op20, bit isLd, bit isPre, dag oops, dag iops,
595 IndexMode im, Format f, InstrItinClass itin, string opc,
596 string asm, string cstr, list<dag> pattern>
597 : I<oops, iops, AddrMode3, 4, im, f, itin,
598 opc, asm, cstr, pattern> {
599 // {13} 1 == imm8, 0 == Rm
606 let Inst{27-25} = 0b000;
607 let Inst{24} = isPre; // P bit
608 let Inst{23} = addr{8}; // U bit
609 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
610 let Inst{20} = op20; // L bit
611 let Inst{19-16} = addr{12-9}; // Rn
612 let Inst{15-12} = Rt; // Rt
613 let Inst{11-8} = addr{7-4}; // imm7_4/zero
615 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
616 let AsmMatchConverter = "CvtLdWriteBackRegAddrMode3";
619 class AI3stridx<bits<4> op, bit isByte, bit isPre, dag oops, dag iops,
620 IndexMode im, Format f, InstrItinClass itin, string opc,
621 string asm, string cstr, list<dag> pattern>
622 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
624 // AM3 store w/ two operands: (GPR, am3offset)
628 let Inst{27-25} = 0b000;
629 let Inst{23} = offset{8};
630 let Inst{22} = offset{9};
631 let Inst{19-16} = Rn;
632 let Inst{15-12} = Rt; // Rt
633 let Inst{11-8} = offset{7-4}; // imm7_4/zero
635 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
639 class AI3str<bits<4> op, dag oops, dag iops, Format f, InstrItinClass itin,
640 string opc, string asm, list<dag> pattern>
641 : I<oops, iops, AddrMode3, 4, IndexModeNone, f, itin,
642 opc, asm, "", pattern> {
645 let Inst{27-25} = 0b000;
646 let Inst{24} = 1; // P bit
647 let Inst{23} = addr{8}; // U bit
648 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
649 let Inst{21} = 0; // W bit
650 let Inst{20} = 0; // L bit
651 let Inst{19-16} = addr{12-9}; // Rn
652 let Inst{15-12} = Rt; // Rt
653 let Inst{11-8} = addr{7-4}; // imm7_4/zero
655 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
658 // Pre-indexed stores
659 class AI3sthpr<dag oops, dag iops, Format f, InstrItinClass itin,
660 string opc, string asm, string cstr, list<dag> pattern>
661 : I<oops, iops, AddrMode3, 4, IndexModePre, f, itin,
662 opc, asm, cstr, pattern> {
664 let Inst{5} = 1; // H bit
665 let Inst{6} = 0; // S bit
667 let Inst{20} = 0; // L bit
668 let Inst{21} = 1; // W bit
669 let Inst{24} = 1; // P bit
670 let Inst{27-25} = 0b000;
672 class AI3stdpr<dag oops, dag iops, Format f, InstrItinClass itin,
673 string opc, string asm, string cstr, list<dag> pattern>
674 : I<oops, iops, AddrMode3, 4, IndexModePre, f, itin,
675 opc, asm, cstr, pattern> {
677 let Inst{5} = 1; // H bit
678 let Inst{6} = 1; // S bit
680 let Inst{20} = 0; // L bit
681 let Inst{21} = 1; // W bit
682 let Inst{24} = 1; // P bit
683 let Inst{27-25} = 0b000;
686 // Post-indexed stores
687 class AI3sthpo<dag oops, dag iops, Format f, InstrItinClass itin,
688 string opc, string asm, string cstr, list<dag> pattern>
689 : I<oops, iops, AddrMode3, 4, IndexModePost, f, itin,
690 opc, asm, cstr,pattern> {
691 // {13} 1 == imm8, 0 == Rm
698 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
700 let Inst{5} = 1; // H bit
701 let Inst{6} = 0; // S bit
703 let Inst{11-8} = addr{7-4}; // imm7_4/zero
704 let Inst{15-12} = Rt; // Rt
705 let Inst{19-16} = addr{12-9}; // Rn
706 let Inst{20} = 0; // L bit
707 let Inst{21} = 0; // W bit
708 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
709 let Inst{23} = addr{8}; // U bit
710 let Inst{24} = 0; // P bit
711 let Inst{27-25} = 0b000;
713 class AI3stdpo<dag oops, dag iops, Format f, InstrItinClass itin,
714 string opc, string asm, string cstr, list<dag> pattern>
715 : I<oops, iops, AddrMode3, 4, IndexModePost, f, itin,
716 opc, asm, cstr, pattern> {
718 let Inst{5} = 1; // H bit
719 let Inst{6} = 1; // S bit
721 let Inst{20} = 0; // L bit
722 let Inst{21} = 0; // W bit
723 let Inst{24} = 0; // P bit
724 let Inst{27-25} = 0b000;
727 // addrmode4 instructions
728 class AXI4<dag oops, dag iops, IndexMode im, Format f, InstrItinClass itin,
729 string asm, string cstr, list<dag> pattern>
730 : XI<oops, iops, AddrMode4, 4, im, f, itin, asm, cstr, pattern> {
735 let Inst{27-25} = 0b100;
736 let Inst{22} = 0; // S bit
737 let Inst{19-16} = Rn;
738 let Inst{15-0} = regs;
741 // Unsigned multiply, multiply-accumulate instructions.
742 class AMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
743 string opc, string asm, list<dag> pattern>
744 : I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
745 opc, asm, "", pattern> {
746 let Inst{7-4} = 0b1001;
747 let Inst{20} = 0; // S bit
748 let Inst{27-21} = opcod;
750 class AsMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
751 string opc, string asm, list<dag> pattern>
752 : sI<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
753 opc, asm, "", pattern> {
754 let Inst{7-4} = 0b1001;
755 let Inst{27-21} = opcod;
758 // Most significant word multiply
759 class AMul2I<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
760 InstrItinClass itin, string opc, string asm, list<dag> pattern>
761 : I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
762 opc, asm, "", pattern> {
766 let Inst{7-4} = opc7_4;
768 let Inst{27-21} = opcod;
769 let Inst{19-16} = Rd;
773 // MSW multiple w/ Ra operand
774 class AMul2Ia<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
775 InstrItinClass itin, string opc, string asm, list<dag> pattern>
776 : AMul2I<opcod, opc7_4, oops, iops, itin, opc, asm, pattern> {
778 let Inst{15-12} = Ra;
781 // SMUL<x><y> / SMULW<y> / SMLA<x><y> / SMLAW<x><y>
782 class AMulxyIbase<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
783 InstrItinClass itin, string opc, string asm, list<dag> pattern>
784 : I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
785 opc, asm, "", pattern> {
791 let Inst{27-21} = opcod;
792 let Inst{6-5} = bit6_5;
796 class AMulxyI<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
797 InstrItinClass itin, string opc, string asm, list<dag> pattern>
798 : AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
800 let Inst{19-16} = Rd;
803 // AMulxyI with Ra operand
804 class AMulxyIa<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
805 InstrItinClass itin, string opc, string asm, list<dag> pattern>
806 : AMulxyI<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
808 let Inst{15-12} = Ra;
811 class AMulxyI64<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
812 InstrItinClass itin, string opc, string asm, list<dag> pattern>
813 : AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
816 let Inst{19-16} = RdHi;
817 let Inst{15-12} = RdLo;
820 // Extend instructions.
821 class AExtI<bits<8> opcod, dag oops, dag iops, InstrItinClass itin,
822 string opc, string asm, list<dag> pattern>
823 : I<oops, iops, AddrModeNone, 4, IndexModeNone, ExtFrm, itin,
824 opc, asm, "", pattern> {
825 // All AExtI instructions have Rd and Rm register operands.
828 let Inst{15-12} = Rd;
830 let Inst{7-4} = 0b0111;
831 let Inst{9-8} = 0b00;
832 let Inst{27-20} = opcod;
835 // Misc Arithmetic instructions.
836 class AMiscA1I<bits<8> opcod, bits<4> opc7_4, dag oops, dag iops,
837 InstrItinClass itin, string opc, string asm, list<dag> pattern>
838 : I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
839 opc, asm, "", pattern> {
842 let Inst{27-20} = opcod;
843 let Inst{19-16} = 0b1111;
844 let Inst{15-12} = Rd;
845 let Inst{11-8} = 0b1111;
846 let Inst{7-4} = opc7_4;
851 def PKHLSLAsmOperand : AsmOperandClass {
852 let Name = "PKHLSLImm";
853 let ParserMethod = "parsePKHLSLImm";
855 def pkh_lsl_amt: Operand<i32>, ImmLeaf<i32, [{ return Imm >= 0 && Imm < 32; }]>{
856 let PrintMethod = "printPKHLSLShiftImm";
857 let ParserMatchClass = PKHLSLAsmOperand;
859 def PKHASRAsmOperand : AsmOperandClass {
860 let Name = "PKHASRImm";
861 let ParserMethod = "parsePKHASRImm";
863 def pkh_asr_amt: Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm <= 32; }]>{
864 let PrintMethod = "printPKHASRShiftImm";
865 let ParserMatchClass = PKHASRAsmOperand;
868 class APKHI<bits<8> opcod, bit tb, dag oops, dag iops, InstrItinClass itin,
869 string opc, string asm, list<dag> pattern>
870 : I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
871 opc, asm, "", pattern> {
876 let Inst{27-20} = opcod;
877 let Inst{19-16} = Rn;
878 let Inst{15-12} = Rd;
881 let Inst{5-4} = 0b01;
885 //===----------------------------------------------------------------------===//
887 // ARMPat - Same as Pat<>, but requires that the compiler be in ARM mode.
888 class ARMPat<dag pattern, dag result> : Pat<pattern, result> {
889 list<Predicate> Predicates = [IsARM];
891 class ARMV5TPat<dag pattern, dag result> : Pat<pattern, result> {
892 list<Predicate> Predicates = [IsARM, HasV5T];
894 class ARMV5TEPat<dag pattern, dag result> : Pat<pattern, result> {
895 list<Predicate> Predicates = [IsARM, HasV5TE];
897 class ARMV6Pat<dag pattern, dag result> : Pat<pattern, result> {
898 list<Predicate> Predicates = [IsARM, HasV6];
901 //===----------------------------------------------------------------------===//
902 // Thumb Instruction Format Definitions.
905 class ThumbI<dag oops, dag iops, AddrMode am, int sz,
906 InstrItinClass itin, string asm, string cstr, list<dag> pattern>
907 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
908 let OutOperandList = oops;
909 let InOperandList = iops;
911 let Pattern = pattern;
912 list<Predicate> Predicates = [IsThumb];
915 // TI - Thumb instruction.
916 class TI<dag oops, dag iops, InstrItinClass itin, string asm, list<dag> pattern>
917 : ThumbI<oops, iops, AddrModeNone, 2, itin, asm, "", pattern>;
919 // Two-address instructions
920 class TIt<dag oops, dag iops, InstrItinClass itin, string asm,
922 : ThumbI<oops, iops, AddrModeNone, 2, itin, asm, "$lhs = $dst",
925 // tBL, tBX 32-bit instructions
926 class TIx2<bits<5> opcod1, bits<2> opcod2, bit opcod3,
927 dag oops, dag iops, InstrItinClass itin, string asm,
929 : ThumbI<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>,
931 let Inst{31-27} = opcod1;
932 let Inst{15-14} = opcod2;
933 let Inst{12} = opcod3;
936 // BR_JT instructions
937 class TJTI<dag oops, dag iops, InstrItinClass itin, string asm,
939 : ThumbI<oops, iops, AddrModeNone, 0, itin, asm, "", pattern>;
942 class Thumb1I<dag oops, dag iops, AddrMode am, int sz,
943 InstrItinClass itin, string asm, string cstr, list<dag> pattern>
944 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
945 let OutOperandList = oops;
946 let InOperandList = iops;
948 let Pattern = pattern;
949 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
952 class T1I<dag oops, dag iops, InstrItinClass itin,
953 string asm, list<dag> pattern>
954 : Thumb1I<oops, iops, AddrModeNone, 2, itin, asm, "", pattern>;
955 class T1Ix2<dag oops, dag iops, InstrItinClass itin,
956 string asm, list<dag> pattern>
957 : Thumb1I<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>;
959 // Two-address instructions
960 class T1It<dag oops, dag iops, InstrItinClass itin,
961 string asm, string cstr, list<dag> pattern>
962 : Thumb1I<oops, iops, AddrModeNone, 2, itin,
965 // Thumb1 instruction that can either be predicated or set CPSR.
966 class Thumb1sI<dag oops, dag iops, AddrMode am, int sz,
968 string opc, string asm, string cstr, list<dag> pattern>
969 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
970 let OutOperandList = !con(oops, (outs s_cc_out:$s));
971 let InOperandList = !con(iops, (ins pred:$p));
972 let AsmString = !strconcat(opc, "${s}${p}", asm);
973 let Pattern = pattern;
974 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
977 class T1sI<dag oops, dag iops, InstrItinClass itin,
978 string opc, string asm, list<dag> pattern>
979 : Thumb1sI<oops, iops, AddrModeNone, 2, itin, opc, asm, "", pattern>;
981 // Two-address instructions
982 class T1sIt<dag oops, dag iops, InstrItinClass itin,
983 string opc, string asm, list<dag> pattern>
984 : Thumb1sI<oops, iops, AddrModeNone, 2, itin, opc, asm,
985 "$Rn = $Rdn", pattern>;
987 // Thumb1 instruction that can be predicated.
988 class Thumb1pI<dag oops, dag iops, AddrMode am, int sz,
990 string opc, string asm, string cstr, list<dag> pattern>
991 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
992 let OutOperandList = oops;
993 let InOperandList = !con(iops, (ins pred:$p));
994 let AsmString = !strconcat(opc, "${p}", asm);
995 let Pattern = pattern;
996 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
999 class T1pI<dag oops, dag iops, InstrItinClass itin,
1000 string opc, string asm, list<dag> pattern>
1001 : Thumb1pI<oops, iops, AddrModeNone, 2, itin, opc, asm, "", pattern>;
1003 // Two-address instructions
1004 class T1pIt<dag oops, dag iops, InstrItinClass itin,
1005 string opc, string asm, list<dag> pattern>
1006 : Thumb1pI<oops, iops, AddrModeNone, 2, itin, opc, asm,
1007 "$Rn = $Rdn", pattern>;
1009 class T1pIs<dag oops, dag iops,
1010 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1011 : Thumb1pI<oops, iops, AddrModeT1_s, 2, itin, opc, asm, "", pattern>;
1013 class Encoding16 : Encoding {
1014 let Inst{31-16} = 0x0000;
1017 // A6.2 16-bit Thumb instruction encoding
1018 class T1Encoding<bits<6> opcode> : Encoding16 {
1019 let Inst{15-10} = opcode;
1022 // A6.2.1 Shift (immediate), add, subtract, move, and compare encoding.
1023 class T1General<bits<5> opcode> : Encoding16 {
1024 let Inst{15-14} = 0b00;
1025 let Inst{13-9} = opcode;
1028 // A6.2.2 Data-processing encoding.
1029 class T1DataProcessing<bits<4> opcode> : Encoding16 {
1030 let Inst{15-10} = 0b010000;
1031 let Inst{9-6} = opcode;
1034 // A6.2.3 Special data instructions and branch and exchange encoding.
1035 class T1Special<bits<4> opcode> : Encoding16 {
1036 let Inst{15-10} = 0b010001;
1037 let Inst{9-6} = opcode;
1040 // A6.2.4 Load/store single data item encoding.
1041 class T1LoadStore<bits<4> opA, bits<3> opB> : Encoding16 {
1042 let Inst{15-12} = opA;
1043 let Inst{11-9} = opB;
1045 class T1LdStSP<bits<3> opB> : T1LoadStore<0b1001, opB>; // SP relative
1047 class T1BranchCond<bits<4> opcode> : Encoding16 {
1048 let Inst{15-12} = opcode;
1051 // Helper classes to encode Thumb1 loads and stores. For immediates, the
1052 // following bits are used for "opA" (see A6.2.4):
1054 // 0b0110 => Immediate, 4 bytes
1055 // 0b1000 => Immediate, 2 bytes
1056 // 0b0111 => Immediate, 1 byte
1057 class T1pILdStEncode<bits<3> opcode, dag oops, dag iops, AddrMode am,
1058 InstrItinClass itin, string opc, string asm,
1060 : Thumb1pI<oops, iops, am, 2, itin, opc, asm, "", pattern>,
1061 T1LoadStore<0b0101, opcode> {
1064 let Inst{8-6} = addr{5-3}; // Rm
1065 let Inst{5-3} = addr{2-0}; // Rn
1068 class T1pILdStEncodeImm<bits<4> opA, bit opB, dag oops, dag iops, AddrMode am,
1069 InstrItinClass itin, string opc, string asm,
1071 : Thumb1pI<oops, iops, am, 2, itin, opc, asm, "", pattern>,
1072 T1LoadStore<opA, {opB,?,?}> {
1075 let Inst{10-6} = addr{7-3}; // imm5
1076 let Inst{5-3} = addr{2-0}; // Rn
1080 // A6.2.5 Miscellaneous 16-bit instructions encoding.
1081 class T1Misc<bits<7> opcode> : Encoding16 {
1082 let Inst{15-12} = 0b1011;
1083 let Inst{11-5} = opcode;
1086 // Thumb2I - Thumb2 instruction. Almost all Thumb2 instructions are predicable.
1087 class Thumb2I<dag oops, dag iops, AddrMode am, int sz,
1088 InstrItinClass itin,
1089 string opc, string asm, string cstr, list<dag> pattern>
1090 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1091 let OutOperandList = oops;
1092 let InOperandList = !con(iops, (ins pred:$p));
1093 let AsmString = !strconcat(opc, "${p}", asm);
1094 let Pattern = pattern;
1095 list<Predicate> Predicates = [IsThumb2];
1096 let DecoderNamespace = "Thumb2";
1099 // Same as Thumb2I except it can optionally modify CPSR. Note it's modeled as an
1100 // input operand since by default it's a zero register. It will become an
1101 // implicit def once it's "flipped".
1103 // FIXME: This uses unified syntax so {s} comes before {p}. We should make it
1105 class Thumb2sI<dag oops, dag iops, AddrMode am, int sz,
1106 InstrItinClass itin,
1107 string opc, string asm, string cstr, list<dag> pattern>
1108 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1109 bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
1112 let OutOperandList = oops;
1113 let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
1114 let AsmString = !strconcat(opc, "${s}${p}", asm);
1115 let Pattern = pattern;
1116 list<Predicate> Predicates = [IsThumb2];
1117 let DecoderNamespace = "Thumb2";
1121 class Thumb2XI<dag oops, dag iops, AddrMode am, int sz,
1122 InstrItinClass itin,
1123 string asm, string cstr, list<dag> pattern>
1124 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1125 let OutOperandList = oops;
1126 let InOperandList = iops;
1127 let AsmString = asm;
1128 let Pattern = pattern;
1129 list<Predicate> Predicates = [IsThumb2];
1130 let DecoderNamespace = "Thumb2";
1133 class ThumbXI<dag oops, dag iops, AddrMode am, int sz,
1134 InstrItinClass itin,
1135 string asm, string cstr, list<dag> pattern>
1136 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1137 let OutOperandList = oops;
1138 let InOperandList = iops;
1139 let AsmString = asm;
1140 let Pattern = pattern;
1141 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
1142 let DecoderNamespace = "Thumb";
1145 class T2I<dag oops, dag iops, InstrItinClass itin,
1146 string opc, string asm, list<dag> pattern>
1147 : Thumb2I<oops, iops, AddrModeNone, 4, itin, opc, asm, "", pattern>;
1148 class T2Ii12<dag oops, dag iops, InstrItinClass itin,
1149 string opc, string asm, list<dag> pattern>
1150 : Thumb2I<oops, iops, AddrModeT2_i12, 4, itin, opc, asm, "",pattern>;
1151 class T2Ii8<dag oops, dag iops, InstrItinClass itin,
1152 string opc, string asm, list<dag> pattern>
1153 : Thumb2I<oops, iops, AddrModeT2_i8, 4, itin, opc, asm, "", pattern>;
1154 class T2Iso<dag oops, dag iops, InstrItinClass itin,
1155 string opc, string asm, list<dag> pattern>
1156 : Thumb2I<oops, iops, AddrModeT2_so, 4, itin, opc, asm, "", pattern>;
1157 class T2Ipc<dag oops, dag iops, InstrItinClass itin,
1158 string opc, string asm, list<dag> pattern>
1159 : Thumb2I<oops, iops, AddrModeT2_pc, 4, itin, opc, asm, "", pattern>;
1160 class T2Ii8s4<bit P, bit W, bit isLoad, dag oops, dag iops, InstrItinClass itin,
1161 string opc, string asm, list<dag> pattern>
1162 : Thumb2I<oops, iops, AddrModeT2_i8s4, 4, itin, opc, asm, "",
1167 let Inst{31-25} = 0b1110100;
1169 let Inst{23} = addr{8};
1172 let Inst{20} = isLoad;
1173 let Inst{19-16} = addr{12-9};
1174 let Inst{15-12} = Rt{3-0};
1175 let Inst{11-8} = Rt2{3-0};
1176 let Inst{7-0} = addr{7-0};
1179 class T2sI<dag oops, dag iops, InstrItinClass itin,
1180 string opc, string asm, list<dag> pattern>
1181 : Thumb2sI<oops, iops, AddrModeNone, 4, itin, opc, asm, "", pattern>;
1183 class T2XI<dag oops, dag iops, InstrItinClass itin,
1184 string asm, list<dag> pattern>
1185 : Thumb2XI<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>;
1186 class T2JTI<dag oops, dag iops, InstrItinClass itin,
1187 string asm, list<dag> pattern>
1188 : Thumb2XI<oops, iops, AddrModeNone, 0, itin, asm, "", pattern>;
1190 // Move to/from coprocessor instructions
1191 class T2Cop<bits<4> opc, dag oops, dag iops, string asm, list<dag> pattern>
1192 : T2XI <oops, iops, NoItinerary, asm, pattern>, Requires<[IsThumb2]> {
1193 let Inst{31-28} = opc;
1196 // Two-address instructions
1197 class T2XIt<dag oops, dag iops, InstrItinClass itin,
1198 string asm, string cstr, list<dag> pattern>
1199 : Thumb2XI<oops, iops, AddrModeNone, 4, itin, asm, cstr, pattern>;
1201 // T2Iidxldst - Thumb2 indexed load / store instructions.
1202 class T2Iidxldst<bit signed, bits<2> opcod, bit load, bit pre,
1204 AddrMode am, IndexMode im, InstrItinClass itin,
1205 string opc, string asm, string cstr, list<dag> pattern>
1206 : InstARM<am, 4, im, ThumbFrm, GenericDomain, cstr, itin> {
1207 let OutOperandList = oops;
1208 let InOperandList = !con(iops, (ins pred:$p));
1209 let AsmString = !strconcat(opc, "${p}", asm);
1210 let Pattern = pattern;
1211 list<Predicate> Predicates = [IsThumb2];
1212 let DecoderNamespace = "Thumb2";
1213 let Inst{31-27} = 0b11111;
1214 let Inst{26-25} = 0b00;
1215 let Inst{24} = signed;
1217 let Inst{22-21} = opcod;
1218 let Inst{20} = load;
1220 // (P, W) = (1, 1) Pre-indexed or (0, 1) Post-indexed
1221 let Inst{10} = pre; // The P bit.
1222 let Inst{8} = 1; // The W bit.
1225 let Inst{7-0} = addr{7-0};
1226 let Inst{9} = addr{8}; // Sign bit
1230 let Inst{15-12} = Rt{3-0};
1231 let Inst{19-16} = Rn{3-0};
1234 // Tv5Pat - Same as Pat<>, but requires V5T Thumb mode.
1235 class Tv5Pat<dag pattern, dag result> : Pat<pattern, result> {
1236 list<Predicate> Predicates = [IsThumb, IsThumb1Only, HasV5T];
1239 // T1Pat - Same as Pat<>, but requires that the compiler be in Thumb1 mode.
1240 class T1Pat<dag pattern, dag result> : Pat<pattern, result> {
1241 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
1244 // T2v6Pat - Same as Pat<>, but requires V6T2 Thumb2 mode.
1245 class T2v6Pat<dag pattern, dag result> : Pat<pattern, result> {
1246 list<Predicate> Predicates = [IsThumb2, HasV6T2];
1249 // T2Pat - Same as Pat<>, but requires that the compiler be in Thumb2 mode.
1250 class T2Pat<dag pattern, dag result> : Pat<pattern, result> {
1251 list<Predicate> Predicates = [IsThumb2];
1254 //===----------------------------------------------------------------------===//
1256 //===----------------------------------------------------------------------===//
1257 // ARM VFP Instruction templates.
1260 // Almost all VFP instructions are predicable.
1261 class VFPI<dag oops, dag iops, AddrMode am, int sz,
1262 IndexMode im, Format f, InstrItinClass itin,
1263 string opc, string asm, string cstr, list<dag> pattern>
1264 : InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
1266 let Inst{31-28} = p;
1267 let OutOperandList = oops;
1268 let InOperandList = !con(iops, (ins pred:$p));
1269 let AsmString = !strconcat(opc, "${p}", asm);
1270 let Pattern = pattern;
1271 let PostEncoderMethod = "VFPThumb2PostEncoder";
1272 list<Predicate> Predicates = [HasVFP2];
1276 class VFPXI<dag oops, dag iops, AddrMode am, int sz,
1277 IndexMode im, Format f, InstrItinClass itin,
1278 string asm, string cstr, list<dag> pattern>
1279 : InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
1281 let Inst{31-28} = p;
1282 let OutOperandList = oops;
1283 let InOperandList = iops;
1284 let AsmString = asm;
1285 let Pattern = pattern;
1286 let PostEncoderMethod = "VFPThumb2PostEncoder";
1287 list<Predicate> Predicates = [HasVFP2];
1290 class VFPAI<dag oops, dag iops, Format f, InstrItinClass itin,
1291 string opc, string asm, list<dag> pattern>
1292 : VFPI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
1293 opc, asm, "", pattern> {
1294 let PostEncoderMethod = "VFPThumb2PostEncoder";
1297 // ARM VFP addrmode5 loads and stores
1298 class ADI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
1299 InstrItinClass itin,
1300 string opc, string asm, list<dag> pattern>
1301 : VFPI<oops, iops, AddrMode5, 4, IndexModeNone,
1302 VFPLdStFrm, itin, opc, asm, "", pattern> {
1303 // Instruction operands.
1307 // Encode instruction operands.
1308 let Inst{23} = addr{8}; // U (add = (U == '1'))
1309 let Inst{22} = Dd{4};
1310 let Inst{19-16} = addr{12-9}; // Rn
1311 let Inst{15-12} = Dd{3-0};
1312 let Inst{7-0} = addr{7-0}; // imm8
1314 // TODO: Mark the instructions with the appropriate subtarget info.
1315 let Inst{27-24} = opcod1;
1316 let Inst{21-20} = opcod2;
1317 let Inst{11-9} = 0b101;
1318 let Inst{8} = 1; // Double precision
1320 // Loads & stores operate on both NEON and VFP pipelines.
1321 let D = VFPNeonDomain;
1324 class ASI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
1325 InstrItinClass itin,
1326 string opc, string asm, list<dag> pattern>
1327 : VFPI<oops, iops, AddrMode5, 4, IndexModeNone,
1328 VFPLdStFrm, itin, opc, asm, "", pattern> {
1329 // Instruction operands.
1333 // Encode instruction operands.
1334 let Inst{23} = addr{8}; // U (add = (U == '1'))
1335 let Inst{22} = Sd{0};
1336 let Inst{19-16} = addr{12-9}; // Rn
1337 let Inst{15-12} = Sd{4-1};
1338 let Inst{7-0} = addr{7-0}; // imm8
1340 // TODO: Mark the instructions with the appropriate subtarget info.
1341 let Inst{27-24} = opcod1;
1342 let Inst{21-20} = opcod2;
1343 let Inst{11-9} = 0b101;
1344 let Inst{8} = 0; // Single precision
1346 // Loads & stores operate on both NEON and VFP pipelines.
1347 let D = VFPNeonDomain;
1350 // VFP Load / store multiple pseudo instructions.
1351 class PseudoVFPLdStM<dag oops, dag iops, InstrItinClass itin, string cstr,
1353 : InstARM<AddrMode4, 4, IndexModeNone, Pseudo, VFPNeonDomain,
1355 let OutOperandList = oops;
1356 let InOperandList = !con(iops, (ins pred:$p));
1357 let Pattern = pattern;
1358 list<Predicate> Predicates = [HasVFP2];
1361 // Load / store multiple
1362 class AXDI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
1363 string asm, string cstr, list<dag> pattern>
1364 : VFPXI<oops, iops, AddrMode4, 4, im,
1365 VFPLdStMulFrm, itin, asm, cstr, pattern> {
1366 // Instruction operands.
1370 // Encode instruction operands.
1371 let Inst{19-16} = Rn;
1372 let Inst{22} = regs{12};
1373 let Inst{15-12} = regs{11-8};
1374 let Inst{7-0} = regs{7-0};
1376 // TODO: Mark the instructions with the appropriate subtarget info.
1377 let Inst{27-25} = 0b110;
1378 let Inst{11-9} = 0b101;
1379 let Inst{8} = 1; // Double precision
1382 class AXSI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
1383 string asm, string cstr, list<dag> pattern>
1384 : VFPXI<oops, iops, AddrMode4, 4, im,
1385 VFPLdStMulFrm, itin, asm, cstr, pattern> {
1386 // Instruction operands.
1390 // Encode instruction operands.
1391 let Inst{19-16} = Rn;
1392 let Inst{22} = regs{8};
1393 let Inst{15-12} = regs{12-9};
1394 let Inst{7-0} = regs{7-0};
1396 // TODO: Mark the instructions with the appropriate subtarget info.
1397 let Inst{27-25} = 0b110;
1398 let Inst{11-9} = 0b101;
1399 let Inst{8} = 0; // Single precision
1402 // Double precision, unary
1403 class ADuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1404 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1405 string asm, list<dag> pattern>
1406 : VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
1407 // Instruction operands.
1411 // Encode instruction operands.
1412 let Inst{3-0} = Dm{3-0};
1413 let Inst{5} = Dm{4};
1414 let Inst{15-12} = Dd{3-0};
1415 let Inst{22} = Dd{4};
1417 let Inst{27-23} = opcod1;
1418 let Inst{21-20} = opcod2;
1419 let Inst{19-16} = opcod3;
1420 let Inst{11-9} = 0b101;
1421 let Inst{8} = 1; // Double precision
1422 let Inst{7-6} = opcod4;
1423 let Inst{4} = opcod5;
1426 // Double precision, binary
1427 class ADbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1428 dag iops, InstrItinClass itin, string opc, string asm,
1430 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1431 // Instruction operands.
1436 // Encode instruction operands.
1437 let Inst{3-0} = Dm{3-0};
1438 let Inst{5} = Dm{4};
1439 let Inst{19-16} = Dn{3-0};
1440 let Inst{7} = Dn{4};
1441 let Inst{15-12} = Dd{3-0};
1442 let Inst{22} = Dd{4};
1444 let Inst{27-23} = opcod1;
1445 let Inst{21-20} = opcod2;
1446 let Inst{11-9} = 0b101;
1447 let Inst{8} = 1; // Double precision
1452 // Single precision, unary
1453 class ASuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1454 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1455 string asm, list<dag> pattern>
1456 : VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
1457 // Instruction operands.
1461 // Encode instruction operands.
1462 let Inst{3-0} = Sm{4-1};
1463 let Inst{5} = Sm{0};
1464 let Inst{15-12} = Sd{4-1};
1465 let Inst{22} = Sd{0};
1467 let Inst{27-23} = opcod1;
1468 let Inst{21-20} = opcod2;
1469 let Inst{19-16} = opcod3;
1470 let Inst{11-9} = 0b101;
1471 let Inst{8} = 0; // Single precision
1472 let Inst{7-6} = opcod4;
1473 let Inst{4} = opcod5;
1476 // Single precision unary, if no NEON. Same as ASuI except not available if
1478 class ASuIn<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1479 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1480 string asm, list<dag> pattern>
1481 : ASuI<opcod1, opcod2, opcod3, opcod4, opcod5, oops, iops, itin, opc, asm,
1483 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1486 // Single precision, binary
1487 class ASbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops, dag iops,
1488 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1489 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1490 // Instruction operands.
1495 // Encode instruction operands.
1496 let Inst{3-0} = Sm{4-1};
1497 let Inst{5} = Sm{0};
1498 let Inst{19-16} = Sn{4-1};
1499 let Inst{7} = Sn{0};
1500 let Inst{15-12} = Sd{4-1};
1501 let Inst{22} = Sd{0};
1503 let Inst{27-23} = opcod1;
1504 let Inst{21-20} = opcod2;
1505 let Inst{11-9} = 0b101;
1506 let Inst{8} = 0; // Single precision
1511 // Single precision binary, if no NEON. Same as ASbI except not available if
1513 class ASbIn<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1514 dag iops, InstrItinClass itin, string opc, string asm,
1516 : ASbI<opcod1, opcod2, op6, op4, oops, iops, itin, opc, asm, pattern> {
1517 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1519 // Instruction operands.
1524 // Encode instruction operands.
1525 let Inst{3-0} = Sm{4-1};
1526 let Inst{5} = Sm{0};
1527 let Inst{19-16} = Sn{4-1};
1528 let Inst{7} = Sn{0};
1529 let Inst{15-12} = Sd{4-1};
1530 let Inst{22} = Sd{0};
1533 // VFP conversion instructions
1534 class AVConv1I<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
1535 dag oops, dag iops, InstrItinClass itin, string opc, string asm,
1537 : VFPAI<oops, iops, VFPConv1Frm, itin, opc, asm, pattern> {
1538 let Inst{27-23} = opcod1;
1539 let Inst{21-20} = opcod2;
1540 let Inst{19-16} = opcod3;
1541 let Inst{11-8} = opcod4;
1546 // VFP conversion between floating-point and fixed-point
1547 class AVConv1XI<bits<5> op1, bits<2> op2, bits<4> op3, bits<4> op4, bit op5,
1548 dag oops, dag iops, InstrItinClass itin, string opc, string asm,
1550 : AVConv1I<op1, op2, op3, op4, oops, iops, itin, opc, asm, pattern> {
1551 // size (fixed-point number): sx == 0 ? 16 : 32
1552 let Inst{7} = op5; // sx
1555 // VFP conversion instructions, if no NEON
1556 class AVConv1In<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
1557 dag oops, dag iops, InstrItinClass itin,
1558 string opc, string asm, list<dag> pattern>
1559 : AVConv1I<opcod1, opcod2, opcod3, opcod4, oops, iops, itin, opc, asm,
1561 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1564 class AVConvXI<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops, Format f,
1565 InstrItinClass itin,
1566 string opc, string asm, list<dag> pattern>
1567 : VFPAI<oops, iops, f, itin, opc, asm, pattern> {
1568 let Inst{27-20} = opcod1;
1569 let Inst{11-8} = opcod2;
1573 class AVConv2I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1574 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1575 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv2Frm, itin, opc, asm, pattern>;
1577 class AVConv3I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1578 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1579 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv3Frm, itin, opc, asm, pattern>;
1581 class AVConv4I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1582 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1583 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv4Frm, itin, opc, asm, pattern>;
1585 class AVConv5I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1586 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1587 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv5Frm, itin, opc, asm, pattern>;
1589 //===----------------------------------------------------------------------===//
1591 //===----------------------------------------------------------------------===//
1592 // ARM NEON Instruction templates.
1595 class NeonI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
1596 InstrItinClass itin, string opc, string dt, string asm, string cstr,
1598 : InstARM<am, 4, im, f, NeonDomain, cstr, itin> {
1599 let OutOperandList = oops;
1600 let InOperandList = !con(iops, (ins pred:$p));
1601 let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
1602 let Pattern = pattern;
1603 list<Predicate> Predicates = [HasNEON];
1606 // Same as NeonI except it does not have a "data type" specifier.
1607 class NeonXI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
1608 InstrItinClass itin, string opc, string asm, string cstr,
1610 : InstARM<am, 4, im, f, NeonDomain, cstr, itin> {
1611 let OutOperandList = oops;
1612 let InOperandList = !con(iops, (ins pred:$p));
1613 let AsmString = !strconcat(opc, "${p}", "\t", asm);
1614 let Pattern = pattern;
1615 list<Predicate> Predicates = [HasNEON];
1618 class NLdSt<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
1619 dag oops, dag iops, InstrItinClass itin,
1620 string opc, string dt, string asm, string cstr, list<dag> pattern>
1621 : NeonI<oops, iops, AddrMode6, IndexModeNone, NLdStFrm, itin, opc, dt, asm,
1623 let Inst{31-24} = 0b11110100;
1624 let Inst{23} = op23;
1625 let Inst{21-20} = op21_20;
1626 let Inst{11-8} = op11_8;
1627 let Inst{7-4} = op7_4;
1629 let PostEncoderMethod = "NEONThumb2LoadStorePostEncoder";
1635 let Inst{22} = Vd{4};
1636 let Inst{15-12} = Vd{3-0};
1637 let Inst{19-16} = Rn{3-0};
1638 let Inst{3-0} = Rm{3-0};
1641 class NLdStLn<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
1642 dag oops, dag iops, InstrItinClass itin,
1643 string opc, string dt, string asm, string cstr, list<dag> pattern>
1644 : NLdSt<op23, op21_20, op11_8, op7_4, oops, iops, itin, opc,
1645 dt, asm, cstr, pattern> {
1649 class PseudoNLdSt<dag oops, dag iops, InstrItinClass itin, string cstr>
1650 : InstARM<AddrMode6, 4, IndexModeNone, Pseudo, NeonDomain, cstr,
1652 let OutOperandList = oops;
1653 let InOperandList = !con(iops, (ins pred:$p));
1654 list<Predicate> Predicates = [HasNEON];
1657 class PseudoNeonI<dag oops, dag iops, InstrItinClass itin, string cstr,
1659 : InstARM<AddrModeNone, 4, IndexModeNone, Pseudo, NeonDomain, cstr,
1661 let OutOperandList = oops;
1662 let InOperandList = !con(iops, (ins pred:$p));
1663 let Pattern = pattern;
1664 list<Predicate> Predicates = [HasNEON];
1667 class NDataI<dag oops, dag iops, Format f, InstrItinClass itin,
1668 string opc, string dt, string asm, string cstr, list<dag> pattern>
1669 : NeonI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, dt, asm, cstr,
1671 let Inst{31-25} = 0b1111001;
1672 let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
1675 class NDataXI<dag oops, dag iops, Format f, InstrItinClass itin,
1676 string opc, string asm, string cstr, list<dag> pattern>
1677 : NeonXI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, asm,
1679 let Inst{31-25} = 0b1111001;
1680 let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
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};
1709 // NEON 2 vector register format.
1710 class N2V<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
1711 bits<5> op11_7, bit op6, bit op4,
1712 dag oops, dag iops, InstrItinClass itin,
1713 string opc, string dt, string asm, string cstr, list<dag> pattern>
1714 : NDataI<oops, iops, N2RegFrm, itin, opc, dt, asm, cstr, pattern> {
1715 let Inst{24-23} = op24_23;
1716 let Inst{21-20} = op21_20;
1717 let Inst{19-18} = op19_18;
1718 let Inst{17-16} = op17_16;
1719 let Inst{11-7} = op11_7;
1723 // Instruction operands.
1727 let Inst{15-12} = Vd{3-0};
1728 let Inst{22} = Vd{4};
1729 let Inst{3-0} = Vm{3-0};
1730 let Inst{5} = Vm{4};
1733 // Same as N2V except it doesn't have a datatype suffix.
1734 class N2VX<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
1735 bits<5> op11_7, bit op6, bit op4,
1736 dag oops, dag iops, InstrItinClass itin,
1737 string opc, string asm, string cstr, list<dag> pattern>
1738 : NDataXI<oops, iops, N2RegFrm, itin, opc, asm, cstr, pattern> {
1739 let Inst{24-23} = op24_23;
1740 let Inst{21-20} = op21_20;
1741 let Inst{19-18} = op19_18;
1742 let Inst{17-16} = op17_16;
1743 let Inst{11-7} = op11_7;
1747 // Instruction operands.
1751 let Inst{15-12} = Vd{3-0};
1752 let Inst{22} = Vd{4};
1753 let Inst{3-0} = Vm{3-0};
1754 let Inst{5} = Vm{4};
1757 // NEON 2 vector register with immediate.
1758 class N2VImm<bit op24, bit op23, bits<4> op11_8, bit op7, bit op6, bit op4,
1759 dag oops, dag iops, Format f, InstrItinClass itin,
1760 string opc, string dt, string asm, string cstr, list<dag> pattern>
1761 : NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1762 let Inst{24} = op24;
1763 let Inst{23} = op23;
1764 let Inst{11-8} = op11_8;
1769 // Instruction operands.
1774 let Inst{15-12} = Vd{3-0};
1775 let Inst{22} = Vd{4};
1776 let Inst{3-0} = Vm{3-0};
1777 let Inst{5} = Vm{4};
1778 let Inst{21-16} = SIMM{5-0};
1781 // NEON 3 vector register format.
1783 class N3VCommon<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1784 bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
1785 string opc, string dt, string asm, string cstr,
1787 : NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1788 let Inst{24} = op24;
1789 let Inst{23} = op23;
1790 let Inst{21-20} = op21_20;
1791 let Inst{11-8} = op11_8;
1796 class N3V<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6, bit op4,
1797 dag oops, dag iops, Format f, InstrItinClass itin,
1798 string opc, string dt, string asm, string cstr, list<dag> pattern>
1799 : N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
1800 oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1802 // Instruction operands.
1807 let Inst{15-12} = Vd{3-0};
1808 let Inst{22} = Vd{4};
1809 let Inst{19-16} = Vn{3-0};
1810 let Inst{7} = Vn{4};
1811 let Inst{3-0} = Vm{3-0};
1812 let Inst{5} = Vm{4};
1815 class N3VLane32<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1816 bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
1817 string opc, string dt, string asm, string cstr,
1819 : N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
1820 oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1822 // Instruction operands.
1828 let Inst{15-12} = Vd{3-0};
1829 let Inst{22} = Vd{4};
1830 let Inst{19-16} = Vn{3-0};
1831 let Inst{7} = Vn{4};
1832 let Inst{3-0} = Vm{3-0};
1836 class N3VLane16<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1837 bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
1838 string opc, string dt, string asm, string cstr,
1840 : N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
1841 oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1843 // Instruction operands.
1849 let Inst{15-12} = Vd{3-0};
1850 let Inst{22} = Vd{4};
1851 let Inst{19-16} = Vn{3-0};
1852 let Inst{7} = Vn{4};
1853 let Inst{2-0} = Vm{2-0};
1854 let Inst{5} = lane{1};
1855 let Inst{3} = lane{0};
1858 // Same as N3V except it doesn't have a data type suffix.
1859 class N3VX<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1861 dag oops, dag iops, Format f, InstrItinClass itin,
1862 string opc, string asm, string cstr, list<dag> pattern>
1863 : NDataXI<oops, iops, f, itin, opc, asm, cstr, pattern> {
1864 let Inst{24} = op24;
1865 let Inst{23} = op23;
1866 let Inst{21-20} = op21_20;
1867 let Inst{11-8} = op11_8;
1871 // Instruction operands.
1876 let Inst{15-12} = Vd{3-0};
1877 let Inst{22} = Vd{4};
1878 let Inst{19-16} = Vn{3-0};
1879 let Inst{7} = Vn{4};
1880 let Inst{3-0} = Vm{3-0};
1881 let Inst{5} = Vm{4};
1884 // NEON VMOVs between scalar and core registers.
1885 class NVLaneOp<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1886 dag oops, dag iops, Format f, InstrItinClass itin,
1887 string opc, string dt, string asm, list<dag> pattern>
1888 : InstARM<AddrModeNone, 4, IndexModeNone, f, NeonDomain,
1890 let Inst{27-20} = opcod1;
1891 let Inst{11-8} = opcod2;
1892 let Inst{6-5} = opcod3;
1894 // A8.6.303, A8.6.328, A8.6.329
1895 let Inst{3-0} = 0b0000;
1897 let OutOperandList = oops;
1898 let InOperandList = !con(iops, (ins pred:$p));
1899 let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
1900 let Pattern = pattern;
1901 list<Predicate> Predicates = [HasNEON];
1903 let PostEncoderMethod = "NEONThumb2DupPostEncoder";
1910 let Inst{31-28} = p{3-0};
1912 let Inst{19-16} = V{3-0};
1913 let Inst{15-12} = R{3-0};
1915 class NVGetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1916 dag oops, dag iops, InstrItinClass itin,
1917 string opc, string dt, string asm, list<dag> pattern>
1918 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NGetLnFrm, itin,
1919 opc, dt, asm, pattern>;
1920 class NVSetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1921 dag oops, dag iops, InstrItinClass itin,
1922 string opc, string dt, string asm, list<dag> pattern>
1923 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NSetLnFrm, itin,
1924 opc, dt, asm, pattern>;
1925 class NVDup<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1926 dag oops, dag iops, InstrItinClass itin,
1927 string opc, string dt, string asm, list<dag> pattern>
1928 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NDupFrm, itin,
1929 opc, dt, asm, pattern>;
1931 // Vector Duplicate Lane (from scalar to all elements)
1932 class NVDupLane<bits<4> op19_16, bit op6, dag oops, dag iops,
1933 InstrItinClass itin, string opc, string dt, string asm,
1935 : NDataI<oops, iops, NVDupLnFrm, itin, opc, dt, asm, "", pattern> {
1936 let Inst{24-23} = 0b11;
1937 let Inst{21-20} = 0b11;
1938 let Inst{19-16} = op19_16;
1939 let Inst{11-7} = 0b11000;
1947 let Inst{22} = Vd{4};
1948 let Inst{15-12} = Vd{3-0};
1949 let Inst{5} = Vm{4};
1950 let Inst{3-0} = Vm{3-0};
1953 // NEONFPPat - Same as Pat<>, but requires that the compiler be using NEON
1954 // for single-precision FP.
1955 class NEONFPPat<dag pattern, dag result> : Pat<pattern, result> {
1956 list<Predicate> Predicates = [HasNEON,UseNEONForFP];