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 DPSoRegFrm : 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>;
74 // The instruction has an Rn register operand.
75 // UnaryDP - Indicates this is a unary data processing instruction, i.e.
76 // it doesn't have a Rn operand.
77 class UnaryDP { bit isUnaryDataProc = 1; }
79 // Xform16Bit - Indicates this Thumb2 instruction may be transformed into
80 // a 16-bit Thumb instruction if certain conditions are met.
81 class Xform16Bit { bit canXformTo16Bit = 1; }
83 //===----------------------------------------------------------------------===//
84 // ARM Instruction flags. These need to match ARMBaseInstrInfo.h.
87 // FIXME: Once the JIT is MC-ized, these can go away.
89 class AddrMode<bits<5> val> {
92 def AddrModeNone : AddrMode<0>;
93 def AddrMode1 : AddrMode<1>;
94 def AddrMode2 : AddrMode<2>;
95 def AddrMode3 : AddrMode<3>;
96 def AddrMode4 : AddrMode<4>;
97 def AddrMode5 : AddrMode<5>;
98 def AddrMode6 : AddrMode<6>;
99 def AddrModeT1_1 : AddrMode<7>;
100 def AddrModeT1_2 : AddrMode<8>;
101 def AddrModeT1_4 : AddrMode<9>;
102 def AddrModeT1_s : AddrMode<10>;
103 def AddrModeT2_i12 : AddrMode<11>;
104 def AddrModeT2_i8 : AddrMode<12>;
105 def AddrModeT2_so : AddrMode<13>;
106 def AddrModeT2_pc : AddrMode<14>;
107 def AddrModeT2_i8s4 : AddrMode<15>;
108 def AddrMode_i12 : AddrMode<16>;
111 class SizeFlagVal<bits<3> val> {
114 def SizeInvalid : SizeFlagVal<0>; // Unset.
115 def SizeSpecial : SizeFlagVal<1>; // Pseudo or special.
116 def Size8Bytes : SizeFlagVal<2>;
117 def Size4Bytes : SizeFlagVal<3>;
118 def Size2Bytes : SizeFlagVal<4>;
120 // Load / store index mode.
121 class IndexMode<bits<2> val> {
124 def IndexModeNone : IndexMode<0>;
125 def IndexModePre : IndexMode<1>;
126 def IndexModePost : IndexMode<2>;
127 def IndexModeUpd : IndexMode<3>;
129 // Instruction execution domain.
130 class Domain<bits<3> val> {
133 def GenericDomain : Domain<0>;
134 def VFPDomain : Domain<1>; // Instructions in VFP domain only
135 def NeonDomain : Domain<2>; // Instructions in Neon domain only
136 def VFPNeonDomain : Domain<3>; // Instructions in both VFP & Neon domains
137 def VFPNeonA8Domain : Domain<5>; // Instructions in VFP & Neon under A8
139 //===----------------------------------------------------------------------===//
140 // ARM special operands.
143 def CondCodeOperand : AsmOperandClass {
144 let Name = "CondCode";
145 let SuperClasses = [];
148 def CCOutOperand : AsmOperandClass {
150 let SuperClasses = [];
153 def MemBarrierOptOperand : AsmOperandClass {
154 let Name = "MemBarrierOpt";
155 let SuperClasses = [];
156 let ParserMethod = "tryParseMemBarrierOptOperand";
159 def ProcIFlagsOperand : AsmOperandClass {
160 let Name = "ProcIFlags";
161 let SuperClasses = [];
162 let ParserMethod = "tryParseProcIFlagsOperand";
165 def MSRMaskOperand : AsmOperandClass {
166 let Name = "MSRMask";
167 let SuperClasses = [];
168 let ParserMethod = "tryParseMSRMaskOperand";
171 // ARM imod and iflag operands, used only by the CPS instruction.
172 def imod_op : Operand<i32> {
173 let PrintMethod = "printCPSIMod";
176 def iflags_op : Operand<i32> {
177 let PrintMethod = "printCPSIFlag";
178 let ParserMatchClass = ProcIFlagsOperand;
181 // ARM Predicate operand. Default to 14 = always (AL). Second part is CC
182 // register whose default is 0 (no register).
183 def pred : PredicateOperand<OtherVT, (ops i32imm, CCR),
184 (ops (i32 14), (i32 zero_reg))> {
185 let PrintMethod = "printPredicateOperand";
186 let ParserMatchClass = CondCodeOperand;
189 // Conditional code result for instructions whose 's' bit is set, e.g. subs.
190 def cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 zero_reg))> {
191 let EncoderMethod = "getCCOutOpValue";
192 let PrintMethod = "printSBitModifierOperand";
193 let ParserMatchClass = CCOutOperand;
196 // Same as cc_out except it defaults to setting CPSR.
197 def s_cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 CPSR))> {
198 let EncoderMethod = "getCCOutOpValue";
199 let PrintMethod = "printSBitModifierOperand";
200 let ParserMatchClass = CCOutOperand;
203 // ARM special operands for disassembly only.
205 def setend_op : Operand<i32> {
206 let PrintMethod = "printSetendOperand";
209 def msr_mask : Operand<i32> {
210 let PrintMethod = "printMSRMaskOperand";
211 let ParserMatchClass = MSRMaskOperand;
214 // Shift Right Immediate - A shift right immediate is encoded differently from
215 // other shift immediates. The imm6 field is encoded like so:
218 // 8 imm6<5:3> = '001', 8 - <imm> is encoded in imm6<2:0>
219 // 16 imm6<5:4> = '01', 16 - <imm> is encoded in imm6<3:0>
220 // 32 imm6<5> = '1', 32 - <imm> is encoded in imm6<4:0>
221 // 64 64 - <imm> is encoded in imm6<5:0>
222 def shr_imm8 : Operand<i32> {
223 let EncoderMethod = "getShiftRight8Imm";
225 def shr_imm16 : Operand<i32> {
226 let EncoderMethod = "getShiftRight16Imm";
228 def shr_imm32 : Operand<i32> {
229 let EncoderMethod = "getShiftRight32Imm";
231 def shr_imm64 : Operand<i32> {
232 let EncoderMethod = "getShiftRight64Imm";
235 //===----------------------------------------------------------------------===//
236 // ARM Instruction templates.
239 class InstTemplate<AddrMode am, SizeFlagVal sz, IndexMode im,
240 Format f, Domain d, string cstr, InstrItinClass itin>
242 let Namespace = "ARM";
247 bits<2> IndexModeBits = IM.Value;
249 bits<6> Form = F.Value;
251 bit isUnaryDataProc = 0;
252 bit canXformTo16Bit = 0;
254 // If this is a pseudo instruction, mark it isCodeGenOnly.
255 let isCodeGenOnly = !eq(!cast<string>(f), "Pseudo");
257 // The layout of TSFlags should be kept in sync with ARMBaseInstrInfo.h.
258 let TSFlags{4-0} = AM.Value;
259 let TSFlags{7-5} = SZ.Value;
260 let TSFlags{9-8} = IndexModeBits;
261 let TSFlags{15-10} = Form;
262 let TSFlags{16} = isUnaryDataProc;
263 let TSFlags{17} = canXformTo16Bit;
264 let TSFlags{20-18} = D.Value;
266 let Constraints = cstr;
267 let Itinerary = itin;
274 class InstARM<AddrMode am, SizeFlagVal sz, IndexMode im,
275 Format f, Domain d, string cstr, InstrItinClass itin>
276 : InstTemplate<am, sz, im, f, d, cstr, itin>, Encoding;
278 // This Encoding-less class is used by Thumb1 to specify the encoding bits later
279 // on by adding flavors to specific instructions.
280 class InstThumb<AddrMode am, SizeFlagVal sz, IndexMode im,
281 Format f, Domain d, string cstr, InstrItinClass itin>
282 : InstTemplate<am, sz, im, f, d, cstr, itin>;
284 class PseudoInst<dag oops, dag iops, InstrItinClass itin, list<dag> pattern>
285 // FIXME: This really should derive from InstTemplate instead, as pseudos
286 // don't need encoding information. TableGen doesn't like that
287 // currently. Need to figure out why and fix it.
288 : InstARM<AddrModeNone, SizeSpecial, IndexModeNone, Pseudo, GenericDomain,
290 let OutOperandList = oops;
291 let InOperandList = iops;
292 let Pattern = pattern;
293 let isCodeGenOnly = 1;
296 // PseudoInst that's ARM-mode only.
297 class ARMPseudoInst<dag oops, dag iops, SizeFlagVal sz, InstrItinClass itin,
299 : PseudoInst<oops, iops, itin, pattern> {
301 list<Predicate> Predicates = [IsARM];
304 // PseudoInst that's Thumb-mode only.
305 class tPseudoInst<dag oops, dag iops, SizeFlagVal sz, InstrItinClass itin,
307 : PseudoInst<oops, iops, itin, pattern> {
309 list<Predicate> Predicates = [IsThumb];
312 // PseudoInst that's Thumb2-mode only.
313 class t2PseudoInst<dag oops, dag iops, SizeFlagVal sz, InstrItinClass itin,
315 : PseudoInst<oops, iops, itin, pattern> {
317 list<Predicate> Predicates = [IsThumb2];
319 // Almost all ARM instructions are predicable.
320 class I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
321 IndexMode im, Format f, InstrItinClass itin,
322 string opc, string asm, string cstr,
324 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
327 let OutOperandList = oops;
328 let InOperandList = !con(iops, (ins pred:$p));
329 let AsmString = !strconcat(opc, "${p}", asm);
330 let Pattern = pattern;
331 list<Predicate> Predicates = [IsARM];
334 // A few are not predicable
335 class InoP<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
336 IndexMode im, Format f, InstrItinClass itin,
337 string opc, string asm, string cstr,
339 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
340 let OutOperandList = oops;
341 let InOperandList = iops;
342 let AsmString = !strconcat(opc, asm);
343 let Pattern = pattern;
344 let isPredicable = 0;
345 list<Predicate> Predicates = [IsARM];
348 // Same as I except it can optionally modify CPSR. Note it's modeled as an input
349 // operand since by default it's a zero register. It will become an implicit def
350 // once it's "flipped".
351 class sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
352 IndexMode im, Format f, InstrItinClass itin,
353 string opc, string asm, string cstr,
355 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
356 bits<4> p; // Predicate operand
357 bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
361 let OutOperandList = oops;
362 let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
363 let AsmString = !strconcat(opc, "${s}${p}", asm);
364 let Pattern = pattern;
365 list<Predicate> Predicates = [IsARM];
369 class XI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
370 IndexMode im, Format f, InstrItinClass itin,
371 string asm, string cstr, list<dag> pattern>
372 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
373 let OutOperandList = oops;
374 let InOperandList = iops;
376 let Pattern = pattern;
377 list<Predicate> Predicates = [IsARM];
380 class AI<dag oops, dag iops, Format f, InstrItinClass itin,
381 string opc, string asm, list<dag> pattern>
382 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
383 opc, asm, "", pattern>;
384 class AsI<dag oops, dag iops, Format f, InstrItinClass itin,
385 string opc, string asm, list<dag> pattern>
386 : sI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
387 opc, asm, "", pattern>;
388 class AXI<dag oops, dag iops, Format f, InstrItinClass itin,
389 string asm, list<dag> pattern>
390 : XI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
392 class AInoP<dag oops, dag iops, Format f, InstrItinClass itin,
393 string opc, string asm, list<dag> pattern>
394 : InoP<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
395 opc, asm, "", pattern>;
397 // Ctrl flow instructions
398 class ABI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
399 string opc, string asm, list<dag> pattern>
400 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, BrFrm, itin,
401 opc, asm, "", pattern> {
402 let Inst{27-24} = opcod;
404 class ABXI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
405 string asm, list<dag> pattern>
406 : XI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, BrFrm, itin,
408 let Inst{27-24} = opcod;
411 // BR_JT instructions
412 class JTI<dag oops, dag iops, InstrItinClass itin,
413 string asm, list<dag> pattern>
414 : XI<oops, iops, AddrModeNone, SizeSpecial, IndexModeNone, BrMiscFrm, itin,
417 // Atomic load/store instructions
418 class AIldrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
419 string opc, string asm, list<dag> pattern>
420 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, LdStExFrm, itin,
421 opc, asm, "", pattern> {
424 let Inst{27-23} = 0b00011;
425 let Inst{22-21} = opcod;
427 let Inst{19-16} = Rn;
428 let Inst{15-12} = Rt;
429 let Inst{11-0} = 0b111110011111;
431 class AIstrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
432 string opc, string asm, list<dag> pattern>
433 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, LdStExFrm, itin,
434 opc, asm, "", pattern> {
438 let Inst{27-23} = 0b00011;
439 let Inst{22-21} = opcod;
441 let Inst{19-16} = addr;
442 let Inst{15-12} = Rd;
443 let Inst{11-4} = 0b11111001;
446 class AIswp<bit b, dag oops, dag iops, string opc, list<dag> pattern>
447 : AI<oops, iops, MiscFrm, NoItinerary, opc, "\t$Rt, $Rt2, [$Rn]", pattern> {
451 let Inst{27-23} = 0b00010;
453 let Inst{21-20} = 0b00;
454 let Inst{19-16} = Rn;
455 let Inst{15-12} = Rt;
456 let Inst{11-4} = 0b00001001;
460 // addrmode1 instructions
461 class AI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
462 string opc, string asm, list<dag> pattern>
463 : I<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
464 opc, asm, "", pattern> {
465 let Inst{24-21} = opcod;
466 let Inst{27-26} = 0b00;
468 class AsI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
469 string opc, string asm, list<dag> pattern>
470 : sI<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
471 opc, asm, "", pattern> {
472 let Inst{24-21} = opcod;
473 let Inst{27-26} = 0b00;
475 class AXI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
476 string asm, list<dag> pattern>
477 : XI<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
479 let Inst{24-21} = opcod;
480 let Inst{27-26} = 0b00;
485 // LDR/LDRB/STR/STRB/...
486 class AI2ldst<bits<3> op, bit isLd, bit isByte, dag oops, dag iops, AddrMode am,
487 Format f, InstrItinClass itin, string opc, string asm,
489 : I<oops, iops, am, Size4Bytes, IndexModeNone, f, itin, opc, asm,
491 let Inst{27-25} = op;
492 let Inst{24} = 1; // 24 == P
494 let Inst{22} = isByte;
495 let Inst{21} = 0; // 21 == W
498 // Indexed load/stores
499 class AI2ldstidx<bit isLd, bit isByte, bit isPre, dag oops, dag iops,
500 IndexMode im, Format f, InstrItinClass itin, string opc,
501 string asm, string cstr, list<dag> pattern>
502 : I<oops, iops, AddrMode2, Size4Bytes, im, f, itin,
503 opc, asm, cstr, pattern> {
505 let Inst{27-26} = 0b01;
506 let Inst{24} = isPre; // P bit
507 let Inst{22} = isByte; // B bit
508 let Inst{21} = isPre; // W bit
509 let Inst{20} = isLd; // L bit
510 let Inst{15-12} = Rt;
512 class AI2stridx<bit isByte, bit isPre, dag oops, dag iops,
513 IndexMode im, Format f, InstrItinClass itin, string opc,
514 string asm, string cstr, list<dag> pattern>
515 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
517 // AM2 store w/ two operands: (GPR, am2offset)
518 // {13} 1 == Rm, 0 == imm12
523 let Inst{25} = offset{13};
524 let Inst{23} = offset{12};
525 let Inst{19-16} = Rn;
526 let Inst{11-0} = offset{11-0};
528 // FIXME: Merge with the above class when addrmode2 gets used for STR, STRB
529 // but for now use this class for STRT and STRBT.
530 class AI2stridxT<bit isByte, bit isPre, dag oops, dag iops,
531 IndexMode im, Format f, InstrItinClass itin, string opc,
532 string asm, string cstr, list<dag> pattern>
533 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
535 // AM2 store w/ two operands: (GPR, am2offset)
537 // {13} 1 == Rm, 0 == imm12
541 let Inst{25} = addr{13};
542 let Inst{23} = addr{12};
543 let Inst{19-16} = addr{17-14};
544 let Inst{11-0} = addr{11-0};
547 // addrmode3 instructions
548 class AI3ld<bits<4> op, bit op20, dag oops, dag iops, Format f,
549 InstrItinClass itin, string opc, string asm, list<dag> pattern>
550 : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
551 opc, asm, "", pattern> {
554 let Inst{27-25} = 0b000;
555 let Inst{24} = 1; // P bit
556 let Inst{23} = addr{8}; // U bit
557 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
558 let Inst{21} = 0; // W bit
559 let Inst{20} = op20; // L bit
560 let Inst{19-16} = addr{12-9}; // Rn
561 let Inst{15-12} = Rt; // Rt
562 let Inst{11-8} = addr{7-4}; // imm7_4/zero
564 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
567 class AI3ldstidx<bits<4> op, bit op20, bit isLd, bit isPre, dag oops, dag iops,
568 IndexMode im, Format f, InstrItinClass itin, string opc,
569 string asm, string cstr, list<dag> pattern>
570 : I<oops, iops, AddrMode3, Size4Bytes, im, f, itin,
571 opc, asm, cstr, pattern> {
573 let Inst{27-25} = 0b000;
574 let Inst{24} = isPre; // P bit
575 let Inst{21} = isPre; // W bit
576 let Inst{20} = op20; // L bit
577 let Inst{15-12} = Rt; // Rt
581 // FIXME: Merge with the above class when addrmode2 gets used for LDR, LDRB
582 // but for now use this class for LDRSBT, LDRHT, LDSHT.
583 class AI3ldstidxT<bits<4> op, bit op20, bit isLd, bit isPre, dag oops, dag iops,
584 IndexMode im, Format f, InstrItinClass itin, string opc,
585 string asm, string cstr, list<dag> pattern>
586 : I<oops, iops, AddrMode3, Size4Bytes, im, f, itin,
587 opc, asm, cstr, pattern> {
588 // {13} 1 == imm8, 0 == Rm
595 let Inst{27-25} = 0b000;
596 let Inst{24} = isPre; // P bit
597 let Inst{23} = addr{8}; // U bit
598 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
599 let Inst{20} = op20; // L bit
600 let Inst{19-16} = addr{12-9}; // Rn
601 let Inst{15-12} = Rt; // Rt
602 let Inst{11-8} = addr{7-4}; // imm7_4/zero
604 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
605 let AsmMatchConverter = "CvtLdWriteBackRegAddrMode3";
608 class AI3stridx<bits<4> op, bit isByte, bit isPre, dag oops, dag iops,
609 IndexMode im, Format f, InstrItinClass itin, string opc,
610 string asm, string cstr, list<dag> pattern>
611 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
613 // AM3 store w/ two operands: (GPR, am3offset)
617 let Inst{27-25} = 0b000;
618 let Inst{23} = offset{8};
619 let Inst{22} = offset{9};
620 let Inst{19-16} = Rn;
621 let Inst{15-12} = Rt; // Rt
622 let Inst{11-8} = offset{7-4}; // imm7_4/zero
624 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
628 class AI3str<bits<4> op, dag oops, dag iops, Format f, InstrItinClass itin,
629 string opc, string asm, list<dag> pattern>
630 : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
631 opc, asm, "", pattern> {
634 let Inst{27-25} = 0b000;
635 let Inst{24} = 1; // P bit
636 let Inst{23} = addr{8}; // U bit
637 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
638 let Inst{21} = 0; // W bit
639 let Inst{20} = 0; // L bit
640 let Inst{19-16} = addr{12-9}; // Rn
641 let Inst{15-12} = Rt; // Rt
642 let Inst{11-8} = addr{7-4}; // imm7_4/zero
644 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
647 // Pre-indexed stores
648 class AI3sthpr<dag oops, dag iops, Format f, InstrItinClass itin,
649 string opc, string asm, string cstr, list<dag> pattern>
650 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
651 opc, asm, cstr, pattern> {
653 let Inst{5} = 1; // H bit
654 let Inst{6} = 0; // S bit
656 let Inst{20} = 0; // L bit
657 let Inst{21} = 1; // W bit
658 let Inst{24} = 1; // P bit
659 let Inst{27-25} = 0b000;
661 class AI3stdpr<dag oops, dag iops, Format f, InstrItinClass itin,
662 string opc, string asm, string cstr, list<dag> pattern>
663 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
664 opc, asm, cstr, pattern> {
666 let Inst{5} = 1; // H bit
667 let Inst{6} = 1; // S bit
669 let Inst{20} = 0; // L bit
670 let Inst{21} = 1; // W bit
671 let Inst{24} = 1; // P bit
672 let Inst{27-25} = 0b000;
675 // Post-indexed stores
676 class AI3sthpo<dag oops, dag iops, Format f, InstrItinClass itin,
677 string opc, string asm, string cstr, list<dag> pattern>
678 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
679 opc, asm, cstr,pattern> {
680 // {13} 1 == imm8, 0 == Rm
687 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
689 let Inst{5} = 1; // H bit
690 let Inst{6} = 0; // S bit
692 let Inst{11-8} = addr{7-4}; // imm7_4/zero
693 let Inst{15-12} = Rt; // Rt
694 let Inst{19-16} = addr{12-9}; // Rn
695 let Inst{20} = 0; // L bit
696 let Inst{21} = 0; // W bit
697 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
698 let Inst{23} = addr{8}; // U bit
699 let Inst{24} = 0; // P bit
700 let Inst{27-25} = 0b000;
702 class AI3stdpo<dag oops, dag iops, Format f, InstrItinClass itin,
703 string opc, string asm, string cstr, list<dag> pattern>
704 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
705 opc, asm, cstr, pattern> {
707 let Inst{5} = 1; // H bit
708 let Inst{6} = 1; // S bit
710 let Inst{20} = 0; // L bit
711 let Inst{21} = 0; // W bit
712 let Inst{24} = 0; // P bit
713 let Inst{27-25} = 0b000;
716 // addrmode4 instructions
717 class AXI4<dag oops, dag iops, IndexMode im, Format f, InstrItinClass itin,
718 string asm, string cstr, list<dag> pattern>
719 : XI<oops, iops, AddrMode4, Size4Bytes, im, f, itin, asm, cstr, pattern> {
724 let Inst{27-25} = 0b100;
725 let Inst{22} = 0; // S bit
726 let Inst{19-16} = Rn;
727 let Inst{15-0} = regs;
730 // Unsigned multiply, multiply-accumulate instructions.
731 class AMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
732 string opc, string asm, list<dag> pattern>
733 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
734 opc, asm, "", pattern> {
735 let Inst{7-4} = 0b1001;
736 let Inst{20} = 0; // S bit
737 let Inst{27-21} = opcod;
739 class AsMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
740 string opc, string asm, list<dag> pattern>
741 : sI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
742 opc, asm, "", pattern> {
743 let Inst{7-4} = 0b1001;
744 let Inst{27-21} = opcod;
747 // Most significant word multiply
748 class AMul2I<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
749 InstrItinClass itin, string opc, string asm, list<dag> pattern>
750 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
751 opc, asm, "", pattern> {
755 let Inst{7-4} = opc7_4;
757 let Inst{27-21} = opcod;
758 let Inst{19-16} = Rd;
762 // MSW multiple w/ Ra operand
763 class AMul2Ia<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
764 InstrItinClass itin, string opc, string asm, list<dag> pattern>
765 : AMul2I<opcod, opc7_4, oops, iops, itin, opc, asm, pattern> {
767 let Inst{15-12} = Ra;
770 // SMUL<x><y> / SMULW<y> / SMLA<x><y> / SMLAW<x><y>
771 class AMulxyIbase<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
772 InstrItinClass itin, string opc, string asm, list<dag> pattern>
773 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
774 opc, asm, "", pattern> {
780 let Inst{27-21} = opcod;
781 let Inst{6-5} = bit6_5;
785 class AMulxyI<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
786 InstrItinClass itin, string opc, string asm, list<dag> pattern>
787 : AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
789 let Inst{19-16} = Rd;
792 // AMulxyI with Ra operand
793 class AMulxyIa<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
794 InstrItinClass itin, string opc, string asm, list<dag> pattern>
795 : AMulxyI<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
797 let Inst{15-12} = Ra;
800 class AMulxyI64<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
801 InstrItinClass itin, string opc, string asm, list<dag> pattern>
802 : AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
805 let Inst{19-16} = RdHi;
806 let Inst{15-12} = RdLo;
809 // Extend instructions.
810 class AExtI<bits<8> opcod, dag oops, dag iops, InstrItinClass itin,
811 string opc, string asm, list<dag> pattern>
812 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ExtFrm, itin,
813 opc, asm, "", pattern> {
814 // All AExtI instructions have Rd and Rm register operands.
817 let Inst{15-12} = Rd;
819 let Inst{7-4} = 0b0111;
820 let Inst{9-8} = 0b00;
821 let Inst{27-20} = opcod;
824 // Misc Arithmetic instructions.
825 class AMiscA1I<bits<8> opcod, bits<4> opc7_4, dag oops, dag iops,
826 InstrItinClass itin, string opc, string asm, list<dag> pattern>
827 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ArithMiscFrm, itin,
828 opc, asm, "", pattern> {
831 let Inst{27-20} = opcod;
832 let Inst{19-16} = 0b1111;
833 let Inst{15-12} = Rd;
834 let Inst{11-8} = 0b1111;
835 let Inst{7-4} = opc7_4;
840 class APKHI<bits<8> opcod, bit tb, dag oops, dag iops, InstrItinClass itin,
841 string opc, string asm, list<dag> pattern>
842 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ArithMiscFrm, itin,
843 opc, asm, "", pattern> {
848 let Inst{27-20} = opcod;
849 let Inst{19-16} = Rn;
850 let Inst{15-12} = Rd;
851 let Inst{11-7} = sh{7-3};
853 let Inst{5-4} = 0b01;
857 //===----------------------------------------------------------------------===//
859 // ARMPat - Same as Pat<>, but requires that the compiler be in ARM mode.
860 class ARMPat<dag pattern, dag result> : Pat<pattern, result> {
861 list<Predicate> Predicates = [IsARM];
863 class ARMV5TPat<dag pattern, dag result> : Pat<pattern, result> {
864 list<Predicate> Predicates = [IsARM, HasV5T];
866 class ARMV5TEPat<dag pattern, dag result> : Pat<pattern, result> {
867 list<Predicate> Predicates = [IsARM, HasV5TE];
869 class ARMV6Pat<dag pattern, dag result> : Pat<pattern, result> {
870 list<Predicate> Predicates = [IsARM, HasV6];
873 //===----------------------------------------------------------------------===//
874 // Thumb Instruction Format Definitions.
877 class ThumbI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
878 InstrItinClass itin, string asm, string cstr, list<dag> pattern>
879 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
880 let OutOperandList = oops;
881 let InOperandList = iops;
883 let Pattern = pattern;
884 list<Predicate> Predicates = [IsThumb];
887 // TI - Thumb instruction.
888 class TI<dag oops, dag iops, InstrItinClass itin, string asm, list<dag> pattern>
889 : ThumbI<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "", pattern>;
891 // Two-address instructions
892 class TIt<dag oops, dag iops, InstrItinClass itin, string asm,
894 : ThumbI<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "$lhs = $dst",
897 // tBL, tBX 32-bit instructions
898 class TIx2<bits<5> opcod1, bits<2> opcod2, bit opcod3,
899 dag oops, dag iops, InstrItinClass itin, string asm,
901 : ThumbI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>,
903 let Inst{31-27} = opcod1;
904 let Inst{15-14} = opcod2;
905 let Inst{12} = opcod3;
908 // Move to/from coprocessor instructions
909 class T1Cop<dag oops, dag iops, string asm, list<dag> pattern>
910 : ThumbI<oops, iops, AddrModeNone, Size4Bytes, NoItinerary, asm, "", pattern>,
911 Encoding, Requires<[IsThumb, HasV6]> {
912 let Inst{31-28} = 0b1110;
915 // BR_JT instructions
916 class TJTI<dag oops, dag iops, InstrItinClass itin, string asm,
918 : ThumbI<oops, iops, AddrModeNone, SizeSpecial, itin, asm, "", pattern>;
921 class Thumb1I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
922 InstrItinClass itin, string asm, string cstr, list<dag> pattern>
923 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
924 let OutOperandList = oops;
925 let InOperandList = iops;
927 let Pattern = pattern;
928 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
931 class T1I<dag oops, dag iops, InstrItinClass itin,
932 string asm, list<dag> pattern>
933 : Thumb1I<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "", pattern>;
934 class T1Ix2<dag oops, dag iops, InstrItinClass itin,
935 string asm, list<dag> pattern>
936 : Thumb1I<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>;
938 // Two-address instructions
939 class T1It<dag oops, dag iops, InstrItinClass itin,
940 string asm, string cstr, list<dag> pattern>
941 : Thumb1I<oops, iops, AddrModeNone, Size2Bytes, itin,
944 // Thumb1 instruction that can either be predicated or set CPSR.
945 class Thumb1sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
947 string opc, string asm, string cstr, list<dag> pattern>
948 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
949 let OutOperandList = !con(oops, (outs s_cc_out:$s));
950 let InOperandList = !con(iops, (ins pred:$p));
951 let AsmString = !strconcat(opc, "${s}${p}", asm);
952 let Pattern = pattern;
953 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
956 class T1sI<dag oops, dag iops, InstrItinClass itin,
957 string opc, string asm, list<dag> pattern>
958 : Thumb1sI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm, "", pattern>;
960 // Two-address instructions
961 class T1sIt<dag oops, dag iops, InstrItinClass itin,
962 string opc, string asm, list<dag> pattern>
963 : Thumb1sI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm,
964 "$Rn = $Rdn", pattern>;
966 // Thumb1 instruction that can be predicated.
967 class Thumb1pI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
969 string opc, string asm, string cstr, list<dag> pattern>
970 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
971 let OutOperandList = oops;
972 let InOperandList = !con(iops, (ins pred:$p));
973 let AsmString = !strconcat(opc, "${p}", asm);
974 let Pattern = pattern;
975 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
978 class T1pI<dag oops, dag iops, InstrItinClass itin,
979 string opc, string asm, list<dag> pattern>
980 : Thumb1pI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm, "", pattern>;
982 // Two-address instructions
983 class T1pIt<dag oops, dag iops, InstrItinClass itin,
984 string opc, string asm, list<dag> pattern>
985 : Thumb1pI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm,
986 "$Rn = $Rdn", pattern>;
988 class T1pIs<dag oops, dag iops,
989 InstrItinClass itin, string opc, string asm, list<dag> pattern>
990 : Thumb1pI<oops, iops, AddrModeT1_s, Size2Bytes, itin, opc, asm, "", pattern>;
992 class Encoding16 : Encoding {
993 let Inst{31-16} = 0x0000;
996 // A6.2 16-bit Thumb instruction encoding
997 class T1Encoding<bits<6> opcode> : Encoding16 {
998 let Inst{15-10} = opcode;
1001 // A6.2.1 Shift (immediate), add, subtract, move, and compare encoding.
1002 class T1General<bits<5> opcode> : Encoding16 {
1003 let Inst{15-14} = 0b00;
1004 let Inst{13-9} = opcode;
1007 // A6.2.2 Data-processing encoding.
1008 class T1DataProcessing<bits<4> opcode> : Encoding16 {
1009 let Inst{15-10} = 0b010000;
1010 let Inst{9-6} = opcode;
1013 // A6.2.3 Special data instructions and branch and exchange encoding.
1014 class T1Special<bits<4> opcode> : Encoding16 {
1015 let Inst{15-10} = 0b010001;
1016 let Inst{9-6} = opcode;
1019 // A6.2.4 Load/store single data item encoding.
1020 class T1LoadStore<bits<4> opA, bits<3> opB> : Encoding16 {
1021 let Inst{15-12} = opA;
1022 let Inst{11-9} = opB;
1024 class T1LdStSP<bits<3> opB> : T1LoadStore<0b1001, opB>; // SP relative
1026 // Helper classes to encode Thumb1 loads and stores. For immediates, the
1027 // following bits are used for "opA" (see A6.2.4):
1029 // 0b0110 => Immediate, 4 bytes
1030 // 0b1000 => Immediate, 2 bytes
1031 // 0b0111 => Immediate, 1 byte
1032 class T1pILdStEncode<bits<3> opcode, dag oops, dag iops, AddrMode am,
1033 InstrItinClass itin, string opc, string asm,
1035 : Thumb1pI<oops, iops, am, Size2Bytes, itin, opc, asm, "", pattern>,
1036 T1LoadStore<0b0101, opcode> {
1039 let Inst{8-6} = addr{5-3}; // Rm
1040 let Inst{5-3} = addr{2-0}; // Rn
1043 class T1pILdStEncodeImm<bits<4> opA, bit opB, dag oops, dag iops, AddrMode am,
1044 InstrItinClass itin, string opc, string asm,
1046 : Thumb1pI<oops, iops, am, Size2Bytes, itin, opc, asm, "", pattern>,
1047 T1LoadStore<opA, {opB,?,?}> {
1050 let Inst{10-6} = addr{7-3}; // imm5
1051 let Inst{5-3} = addr{2-0}; // Rn
1055 // A6.2.5 Miscellaneous 16-bit instructions encoding.
1056 class T1Misc<bits<7> opcode> : Encoding16 {
1057 let Inst{15-12} = 0b1011;
1058 let Inst{11-5} = opcode;
1061 // Thumb2I - Thumb2 instruction. Almost all Thumb2 instructions are predicable.
1062 class Thumb2I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1063 InstrItinClass itin,
1064 string opc, string asm, string cstr, list<dag> pattern>
1065 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1066 let OutOperandList = oops;
1067 let InOperandList = !con(iops, (ins pred:$p));
1068 let AsmString = !strconcat(opc, "${p}", asm);
1069 let Pattern = pattern;
1070 list<Predicate> Predicates = [IsThumb2];
1073 // Same as Thumb2I except it can optionally modify CPSR. Note it's modeled as an
1074 // input operand since by default it's a zero register. It will become an
1075 // implicit def once it's "flipped".
1077 // FIXME: This uses unified syntax so {s} comes before {p}. We should make it
1079 class Thumb2sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1080 InstrItinClass itin,
1081 string opc, string asm, string cstr, list<dag> pattern>
1082 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1083 bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
1086 let OutOperandList = oops;
1087 let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
1088 let AsmString = !strconcat(opc, "${s}${p}", asm);
1089 let Pattern = pattern;
1090 list<Predicate> Predicates = [IsThumb2];
1094 class Thumb2XI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1095 InstrItinClass itin,
1096 string asm, string cstr, list<dag> pattern>
1097 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1098 let OutOperandList = oops;
1099 let InOperandList = iops;
1100 let AsmString = asm;
1101 let Pattern = pattern;
1102 list<Predicate> Predicates = [IsThumb2];
1105 class ThumbXI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1106 InstrItinClass itin,
1107 string asm, string cstr, list<dag> pattern>
1108 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1109 let OutOperandList = oops;
1110 let InOperandList = iops;
1111 let AsmString = asm;
1112 let Pattern = pattern;
1113 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
1116 class T2I<dag oops, dag iops, InstrItinClass itin,
1117 string opc, string asm, list<dag> pattern>
1118 : Thumb2I<oops, iops, AddrModeNone, Size4Bytes, itin, opc, asm, "", pattern>;
1119 class T2Ii12<dag oops, dag iops, InstrItinClass itin,
1120 string opc, string asm, list<dag> pattern>
1121 : Thumb2I<oops, iops, AddrModeT2_i12, Size4Bytes, itin, opc, asm, "",pattern>;
1122 class T2Ii8<dag oops, dag iops, InstrItinClass itin,
1123 string opc, string asm, list<dag> pattern>
1124 : Thumb2I<oops, iops, AddrModeT2_i8, Size4Bytes, itin, opc, asm, "", pattern>;
1125 class T2Iso<dag oops, dag iops, InstrItinClass itin,
1126 string opc, string asm, list<dag> pattern>
1127 : Thumb2I<oops, iops, AddrModeT2_so, Size4Bytes, itin, opc, asm, "", pattern>;
1128 class T2Ipc<dag oops, dag iops, InstrItinClass itin,
1129 string opc, string asm, list<dag> pattern>
1130 : Thumb2I<oops, iops, AddrModeT2_pc, Size4Bytes, itin, opc, asm, "", pattern>;
1131 class T2Ii8s4<bit P, bit W, bit isLoad, dag oops, dag iops, InstrItinClass itin,
1132 string opc, string asm, list<dag> pattern>
1133 : Thumb2I<oops, iops, AddrModeT2_i8s4, Size4Bytes, itin, opc, asm, "",
1138 let Inst{31-25} = 0b1110100;
1140 let Inst{23} = addr{8};
1143 let Inst{20} = isLoad;
1144 let Inst{19-16} = addr{12-9};
1145 let Inst{15-12} = Rt{3-0};
1146 let Inst{11-8} = Rt2{3-0};
1147 let Inst{7-0} = addr{7-0};
1150 class T2sI<dag oops, dag iops, InstrItinClass itin,
1151 string opc, string asm, list<dag> pattern>
1152 : Thumb2sI<oops, iops, AddrModeNone, Size4Bytes, itin, opc, asm, "", pattern>;
1154 class T2XI<dag oops, dag iops, InstrItinClass itin,
1155 string asm, list<dag> pattern>
1156 : Thumb2XI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>;
1157 class T2JTI<dag oops, dag iops, InstrItinClass itin,
1158 string asm, list<dag> pattern>
1159 : Thumb2XI<oops, iops, AddrModeNone, SizeSpecial, itin, asm, "", pattern>;
1161 // Move to/from coprocessor instructions
1162 class T2Cop<dag oops, dag iops, string asm, list<dag> pattern>
1163 : T2XI<oops, iops, NoItinerary, asm, pattern>, Requires<[IsThumb2, HasV6]> {
1164 let Inst{31-28} = 0b1111;
1167 // Two-address instructions
1168 class T2XIt<dag oops, dag iops, InstrItinClass itin,
1169 string asm, string cstr, list<dag> pattern>
1170 : Thumb2XI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, cstr, pattern>;
1172 // T2Iidxldst - Thumb2 indexed load / store instructions.
1173 class T2Iidxldst<bit signed, bits<2> opcod, bit load, bit pre,
1175 AddrMode am, IndexMode im, InstrItinClass itin,
1176 string opc, string asm, string cstr, list<dag> pattern>
1177 : InstARM<am, Size4Bytes, im, ThumbFrm, GenericDomain, cstr, itin> {
1178 let OutOperandList = oops;
1179 let InOperandList = !con(iops, (ins pred:$p));
1180 let AsmString = !strconcat(opc, "${p}", asm);
1181 let Pattern = pattern;
1182 list<Predicate> Predicates = [IsThumb2];
1183 let Inst{31-27} = 0b11111;
1184 let Inst{26-25} = 0b00;
1185 let Inst{24} = signed;
1187 let Inst{22-21} = opcod;
1188 let Inst{20} = load;
1190 // (P, W) = (1, 1) Pre-indexed or (0, 1) Post-indexed
1191 let Inst{10} = pre; // The P bit.
1192 let Inst{8} = 1; // The W bit.
1195 let Inst{7-0} = addr{7-0};
1196 let Inst{9} = addr{8}; // Sign bit
1200 let Inst{15-12} = Rt{3-0};
1201 let Inst{19-16} = Rn{3-0};
1204 // Tv5Pat - Same as Pat<>, but requires V5T Thumb mode.
1205 class Tv5Pat<dag pattern, dag result> : Pat<pattern, result> {
1206 list<Predicate> Predicates = [IsThumb, IsThumb1Only, HasV5T];
1209 // T1Pat - Same as Pat<>, but requires that the compiler be in Thumb1 mode.
1210 class T1Pat<dag pattern, dag result> : Pat<pattern, result> {
1211 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
1214 // T2v6Pat - Same as Pat<>, but requires V6T2 Thumb2 mode.
1215 class T2v6Pat<dag pattern, dag result> : Pat<pattern, result> {
1216 list<Predicate> Predicates = [IsThumb2, HasV6T2];
1219 // T2Pat - Same as Pat<>, but requires that the compiler be in Thumb2 mode.
1220 class T2Pat<dag pattern, dag result> : Pat<pattern, result> {
1221 list<Predicate> Predicates = [IsThumb2];
1224 //===----------------------------------------------------------------------===//
1226 //===----------------------------------------------------------------------===//
1227 // ARM VFP Instruction templates.
1230 // Almost all VFP instructions are predicable.
1231 class VFPI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1232 IndexMode im, Format f, InstrItinClass itin,
1233 string opc, string asm, string cstr, list<dag> pattern>
1234 : InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
1236 let Inst{31-28} = p;
1237 let OutOperandList = oops;
1238 let InOperandList = !con(iops, (ins pred:$p));
1239 let AsmString = !strconcat(opc, "${p}", asm);
1240 let Pattern = pattern;
1241 let PostEncoderMethod = "VFPThumb2PostEncoder";
1242 list<Predicate> Predicates = [HasVFP2];
1246 class VFPXI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1247 IndexMode im, Format f, InstrItinClass itin,
1248 string asm, string cstr, list<dag> pattern>
1249 : InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
1251 let Inst{31-28} = p;
1252 let OutOperandList = oops;
1253 let InOperandList = iops;
1254 let AsmString = asm;
1255 let Pattern = pattern;
1256 let PostEncoderMethod = "VFPThumb2PostEncoder";
1257 list<Predicate> Predicates = [HasVFP2];
1260 class VFPAI<dag oops, dag iops, Format f, InstrItinClass itin,
1261 string opc, string asm, list<dag> pattern>
1262 : VFPI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
1263 opc, asm, "", pattern> {
1264 let PostEncoderMethod = "VFPThumb2PostEncoder";
1267 // ARM VFP addrmode5 loads and stores
1268 class ADI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
1269 InstrItinClass itin,
1270 string opc, string asm, list<dag> pattern>
1271 : VFPI<oops, iops, AddrMode5, Size4Bytes, IndexModeNone,
1272 VFPLdStFrm, itin, opc, asm, "", pattern> {
1273 // Instruction operands.
1277 // Encode instruction operands.
1278 let Inst{23} = addr{8}; // U (add = (U == '1'))
1279 let Inst{22} = Dd{4};
1280 let Inst{19-16} = addr{12-9}; // Rn
1281 let Inst{15-12} = Dd{3-0};
1282 let Inst{7-0} = addr{7-0}; // imm8
1284 // TODO: Mark the instructions with the appropriate subtarget info.
1285 let Inst{27-24} = opcod1;
1286 let Inst{21-20} = opcod2;
1287 let Inst{11-9} = 0b101;
1288 let Inst{8} = 1; // Double precision
1290 // Loads & stores operate on both NEON and VFP pipelines.
1291 let D = VFPNeonDomain;
1294 class ASI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
1295 InstrItinClass itin,
1296 string opc, string asm, list<dag> pattern>
1297 : VFPI<oops, iops, AddrMode5, Size4Bytes, IndexModeNone,
1298 VFPLdStFrm, itin, opc, asm, "", pattern> {
1299 // Instruction operands.
1303 // Encode instruction operands.
1304 let Inst{23} = addr{8}; // U (add = (U == '1'))
1305 let Inst{22} = Sd{0};
1306 let Inst{19-16} = addr{12-9}; // Rn
1307 let Inst{15-12} = Sd{4-1};
1308 let Inst{7-0} = addr{7-0}; // imm8
1310 // TODO: Mark the instructions with the appropriate subtarget info.
1311 let Inst{27-24} = opcod1;
1312 let Inst{21-20} = opcod2;
1313 let Inst{11-9} = 0b101;
1314 let Inst{8} = 0; // Single precision
1316 // Loads & stores operate on both NEON and VFP pipelines.
1317 let D = VFPNeonDomain;
1320 // VFP Load / store multiple pseudo instructions.
1321 class PseudoVFPLdStM<dag oops, dag iops, InstrItinClass itin, string cstr,
1323 : InstARM<AddrMode4, Size4Bytes, IndexModeNone, Pseudo, VFPNeonDomain,
1325 let OutOperandList = oops;
1326 let InOperandList = !con(iops, (ins pred:$p));
1327 let Pattern = pattern;
1328 list<Predicate> Predicates = [HasVFP2];
1331 // Load / store multiple
1332 class AXDI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
1333 string asm, string cstr, list<dag> pattern>
1334 : VFPXI<oops, iops, AddrMode4, Size4Bytes, im,
1335 VFPLdStMulFrm, itin, asm, cstr, pattern> {
1336 // Instruction operands.
1340 // Encode instruction operands.
1341 let Inst{19-16} = Rn;
1342 let Inst{22} = regs{12};
1343 let Inst{15-12} = regs{11-8};
1344 let Inst{7-0} = regs{7-0};
1346 // TODO: Mark the instructions with the appropriate subtarget info.
1347 let Inst{27-25} = 0b110;
1348 let Inst{11-9} = 0b101;
1349 let Inst{8} = 1; // Double precision
1352 class AXSI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
1353 string asm, string cstr, list<dag> pattern>
1354 : VFPXI<oops, iops, AddrMode4, Size4Bytes, im,
1355 VFPLdStMulFrm, itin, asm, cstr, pattern> {
1356 // Instruction operands.
1360 // Encode instruction operands.
1361 let Inst{19-16} = Rn;
1362 let Inst{22} = regs{8};
1363 let Inst{15-12} = regs{12-9};
1364 let Inst{7-0} = regs{7-0};
1366 // TODO: Mark the instructions with the appropriate subtarget info.
1367 let Inst{27-25} = 0b110;
1368 let Inst{11-9} = 0b101;
1369 let Inst{8} = 0; // Single precision
1372 // Double precision, unary
1373 class ADuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1374 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1375 string asm, list<dag> pattern>
1376 : VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
1377 // Instruction operands.
1381 // Encode instruction operands.
1382 let Inst{3-0} = Dm{3-0};
1383 let Inst{5} = Dm{4};
1384 let Inst{15-12} = Dd{3-0};
1385 let Inst{22} = Dd{4};
1387 let Inst{27-23} = opcod1;
1388 let Inst{21-20} = opcod2;
1389 let Inst{19-16} = opcod3;
1390 let Inst{11-9} = 0b101;
1391 let Inst{8} = 1; // Double precision
1392 let Inst{7-6} = opcod4;
1393 let Inst{4} = opcod5;
1396 // Double precision, binary
1397 class ADbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1398 dag iops, InstrItinClass itin, string opc, string asm,
1400 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1401 // Instruction operands.
1406 // Encode instruction operands.
1407 let Inst{3-0} = Dm{3-0};
1408 let Inst{5} = Dm{4};
1409 let Inst{19-16} = Dn{3-0};
1410 let Inst{7} = Dn{4};
1411 let Inst{15-12} = Dd{3-0};
1412 let Inst{22} = Dd{4};
1414 let Inst{27-23} = opcod1;
1415 let Inst{21-20} = opcod2;
1416 let Inst{11-9} = 0b101;
1417 let Inst{8} = 1; // Double precision
1422 // Single precision, unary
1423 class ASuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1424 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1425 string asm, list<dag> pattern>
1426 : VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
1427 // Instruction operands.
1431 // Encode instruction operands.
1432 let Inst{3-0} = Sm{4-1};
1433 let Inst{5} = Sm{0};
1434 let Inst{15-12} = Sd{4-1};
1435 let Inst{22} = Sd{0};
1437 let Inst{27-23} = opcod1;
1438 let Inst{21-20} = opcod2;
1439 let Inst{19-16} = opcod3;
1440 let Inst{11-9} = 0b101;
1441 let Inst{8} = 0; // Single precision
1442 let Inst{7-6} = opcod4;
1443 let Inst{4} = opcod5;
1446 // Single precision unary, if no NEON. Same as ASuI except not available if
1448 class ASuIn<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 : ASuI<opcod1, opcod2, opcod3, opcod4, opcod5, oops, iops, itin, opc, asm,
1453 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1456 // Single precision, binary
1457 class ASbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops, dag iops,
1458 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1459 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1460 // Instruction operands.
1465 // Encode instruction operands.
1466 let Inst{3-0} = Sm{4-1};
1467 let Inst{5} = Sm{0};
1468 let Inst{19-16} = Sn{4-1};
1469 let Inst{7} = Sn{0};
1470 let Inst{15-12} = Sd{4-1};
1471 let Inst{22} = Sd{0};
1473 let Inst{27-23} = opcod1;
1474 let Inst{21-20} = opcod2;
1475 let Inst{11-9} = 0b101;
1476 let Inst{8} = 0; // Single precision
1481 // Single precision binary, if no NEON. Same as ASbI except not available if
1483 class ASbIn<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1484 dag iops, InstrItinClass itin, string opc, string asm,
1486 : ASbI<opcod1, opcod2, op6, op4, oops, iops, itin, opc, asm, pattern> {
1487 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1489 // Instruction operands.
1494 // Encode instruction operands.
1495 let Inst{3-0} = Sm{4-1};
1496 let Inst{5} = Sm{0};
1497 let Inst{19-16} = Sn{4-1};
1498 let Inst{7} = Sn{0};
1499 let Inst{15-12} = Sd{4-1};
1500 let Inst{22} = Sd{0};
1503 // VFP conversion instructions
1504 class AVConv1I<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
1505 dag oops, dag iops, InstrItinClass itin, string opc, string asm,
1507 : VFPAI<oops, iops, VFPConv1Frm, itin, opc, asm, pattern> {
1508 let Inst{27-23} = opcod1;
1509 let Inst{21-20} = opcod2;
1510 let Inst{19-16} = opcod3;
1511 let Inst{11-8} = opcod4;
1516 // VFP conversion between floating-point and fixed-point
1517 class AVConv1XI<bits<5> op1, bits<2> op2, bits<4> op3, bits<4> op4, bit op5,
1518 dag oops, dag iops, InstrItinClass itin, string opc, string asm,
1520 : AVConv1I<op1, op2, op3, op4, oops, iops, itin, opc, asm, pattern> {
1521 // size (fixed-point number): sx == 0 ? 16 : 32
1522 let Inst{7} = op5; // sx
1525 // VFP conversion instructions, if no NEON
1526 class AVConv1In<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
1527 dag oops, dag iops, InstrItinClass itin,
1528 string opc, string asm, list<dag> pattern>
1529 : AVConv1I<opcod1, opcod2, opcod3, opcod4, oops, iops, itin, opc, asm,
1531 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1534 class AVConvXI<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops, Format f,
1535 InstrItinClass itin,
1536 string opc, string asm, list<dag> pattern>
1537 : VFPAI<oops, iops, f, itin, opc, asm, pattern> {
1538 let Inst{27-20} = opcod1;
1539 let Inst{11-8} = opcod2;
1543 class AVConv2I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1544 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1545 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv2Frm, itin, opc, asm, pattern>;
1547 class AVConv3I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1548 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1549 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv3Frm, itin, opc, asm, pattern>;
1551 class AVConv4I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1552 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1553 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv4Frm, itin, opc, asm, pattern>;
1555 class AVConv5I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1556 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1557 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv5Frm, itin, opc, asm, pattern>;
1559 //===----------------------------------------------------------------------===//
1561 //===----------------------------------------------------------------------===//
1562 // ARM NEON Instruction templates.
1565 class NeonI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
1566 InstrItinClass itin, string opc, string dt, string asm, string cstr,
1568 : InstARM<am, Size4Bytes, im, f, NeonDomain, cstr, itin> {
1569 let OutOperandList = oops;
1570 let InOperandList = !con(iops, (ins pred:$p));
1571 let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
1572 let Pattern = pattern;
1573 list<Predicate> Predicates = [HasNEON];
1576 // Same as NeonI except it does not have a "data type" specifier.
1577 class NeonXI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
1578 InstrItinClass itin, string opc, string asm, string cstr,
1580 : InstARM<am, Size4Bytes, im, f, NeonDomain, cstr, itin> {
1581 let OutOperandList = oops;
1582 let InOperandList = !con(iops, (ins pred:$p));
1583 let AsmString = !strconcat(opc, "${p}", "\t", asm);
1584 let Pattern = pattern;
1585 list<Predicate> Predicates = [HasNEON];
1588 class NLdSt<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
1589 dag oops, dag iops, InstrItinClass itin,
1590 string opc, string dt, string asm, string cstr, list<dag> pattern>
1591 : NeonI<oops, iops, AddrMode6, IndexModeNone, NLdStFrm, itin, opc, dt, asm,
1593 let Inst{31-24} = 0b11110100;
1594 let Inst{23} = op23;
1595 let Inst{21-20} = op21_20;
1596 let Inst{11-8} = op11_8;
1597 let Inst{7-4} = op7_4;
1599 let PostEncoderMethod = "NEONThumb2LoadStorePostEncoder";
1605 let Inst{22} = Vd{4};
1606 let Inst{15-12} = Vd{3-0};
1607 let Inst{19-16} = Rn{3-0};
1608 let Inst{3-0} = Rm{3-0};
1611 class NLdStLn<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
1612 dag oops, dag iops, InstrItinClass itin,
1613 string opc, string dt, string asm, string cstr, list<dag> pattern>
1614 : NLdSt<op23, op21_20, op11_8, op7_4, oops, iops, itin, opc,
1615 dt, asm, cstr, pattern> {
1619 class PseudoNLdSt<dag oops, dag iops, InstrItinClass itin, string cstr>
1620 : InstARM<AddrMode6, Size4Bytes, IndexModeNone, Pseudo, NeonDomain, cstr,
1622 let OutOperandList = oops;
1623 let InOperandList = !con(iops, (ins pred:$p));
1624 list<Predicate> Predicates = [HasNEON];
1627 class PseudoNeonI<dag oops, dag iops, InstrItinClass itin, string cstr,
1629 : InstARM<AddrModeNone, Size4Bytes, IndexModeNone, Pseudo, NeonDomain, cstr,
1631 let OutOperandList = oops;
1632 let InOperandList = !con(iops, (ins pred:$p));
1633 let Pattern = pattern;
1634 list<Predicate> Predicates = [HasNEON];
1637 class NDataI<dag oops, dag iops, Format f, InstrItinClass itin,
1638 string opc, string dt, string asm, string cstr, list<dag> pattern>
1639 : NeonI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, dt, asm, cstr,
1641 let Inst{31-25} = 0b1111001;
1642 let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
1645 class NDataXI<dag oops, dag iops, Format f, InstrItinClass itin,
1646 string opc, string asm, string cstr, list<dag> pattern>
1647 : NeonXI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, asm,
1649 let Inst{31-25} = 0b1111001;
1650 let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
1653 // NEON "one register and a modified immediate" format.
1654 class N1ModImm<bit op23, bits<3> op21_19, bits<4> op11_8, bit op7, bit op6,
1656 dag oops, dag iops, InstrItinClass itin,
1657 string opc, string dt, string asm, string cstr,
1659 : NDataI<oops, iops, N1RegModImmFrm, itin, opc, dt, asm, cstr, pattern> {
1660 let Inst{23} = op23;
1661 let Inst{21-19} = op21_19;
1662 let Inst{11-8} = op11_8;
1668 // Instruction operands.
1672 let Inst{15-12} = Vd{3-0};
1673 let Inst{22} = Vd{4};
1674 let Inst{24} = SIMM{7};
1675 let Inst{18-16} = SIMM{6-4};
1676 let Inst{3-0} = SIMM{3-0};
1679 // NEON 2 vector register format.
1680 class N2V<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
1681 bits<5> op11_7, bit op6, bit op4,
1682 dag oops, dag iops, InstrItinClass itin,
1683 string opc, string dt, string asm, string cstr, list<dag> pattern>
1684 : NDataI<oops, iops, N2RegFrm, itin, opc, dt, asm, cstr, pattern> {
1685 let Inst{24-23} = op24_23;
1686 let Inst{21-20} = op21_20;
1687 let Inst{19-18} = op19_18;
1688 let Inst{17-16} = op17_16;
1689 let Inst{11-7} = op11_7;
1693 // Instruction operands.
1697 let Inst{15-12} = Vd{3-0};
1698 let Inst{22} = Vd{4};
1699 let Inst{3-0} = Vm{3-0};
1700 let Inst{5} = Vm{4};
1703 // Same as N2V except it doesn't have a datatype suffix.
1704 class N2VX<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
1705 bits<5> op11_7, bit op6, bit op4,
1706 dag oops, dag iops, InstrItinClass itin,
1707 string opc, string asm, string cstr, list<dag> pattern>
1708 : NDataXI<oops, iops, N2RegFrm, itin, opc, asm, cstr, pattern> {
1709 let Inst{24-23} = op24_23;
1710 let Inst{21-20} = op21_20;
1711 let Inst{19-18} = op19_18;
1712 let Inst{17-16} = op17_16;
1713 let Inst{11-7} = op11_7;
1717 // Instruction operands.
1721 let Inst{15-12} = Vd{3-0};
1722 let Inst{22} = Vd{4};
1723 let Inst{3-0} = Vm{3-0};
1724 let Inst{5} = Vm{4};
1727 // NEON 2 vector register with immediate.
1728 class N2VImm<bit op24, bit op23, bits<4> op11_8, bit op7, bit op6, bit op4,
1729 dag oops, dag iops, Format f, InstrItinClass itin,
1730 string opc, string dt, string asm, string cstr, list<dag> pattern>
1731 : NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1732 let Inst{24} = op24;
1733 let Inst{23} = op23;
1734 let Inst{11-8} = op11_8;
1739 // Instruction operands.
1744 let Inst{15-12} = Vd{3-0};
1745 let Inst{22} = Vd{4};
1746 let Inst{3-0} = Vm{3-0};
1747 let Inst{5} = Vm{4};
1748 let Inst{21-16} = SIMM{5-0};
1751 // NEON 3 vector register format.
1753 class N3VCommon<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1754 bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
1755 string opc, string dt, string asm, string cstr,
1757 : NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1758 let Inst{24} = op24;
1759 let Inst{23} = op23;
1760 let Inst{21-20} = op21_20;
1761 let Inst{11-8} = op11_8;
1766 class N3V<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6, bit op4,
1767 dag oops, dag iops, Format f, InstrItinClass itin,
1768 string opc, string dt, string asm, string cstr, list<dag> pattern>
1769 : N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
1770 oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1772 // Instruction operands.
1777 let Inst{15-12} = Vd{3-0};
1778 let Inst{22} = Vd{4};
1779 let Inst{19-16} = Vn{3-0};
1780 let Inst{7} = Vn{4};
1781 let Inst{3-0} = Vm{3-0};
1782 let Inst{5} = Vm{4};
1785 class N3VLane32<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1786 bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
1787 string opc, string dt, string asm, string cstr,
1789 : N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
1790 oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1792 // Instruction operands.
1798 let Inst{15-12} = Vd{3-0};
1799 let Inst{22} = Vd{4};
1800 let Inst{19-16} = Vn{3-0};
1801 let Inst{7} = Vn{4};
1802 let Inst{3-0} = Vm{3-0};
1806 class N3VLane16<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1807 bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
1808 string opc, string dt, string asm, string cstr,
1810 : N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
1811 oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1813 // Instruction operands.
1819 let Inst{15-12} = Vd{3-0};
1820 let Inst{22} = Vd{4};
1821 let Inst{19-16} = Vn{3-0};
1822 let Inst{7} = Vn{4};
1823 let Inst{2-0} = Vm{2-0};
1824 let Inst{5} = lane{1};
1825 let Inst{3} = lane{0};
1828 // Same as N3V except it doesn't have a data type suffix.
1829 class N3VX<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1831 dag oops, dag iops, Format f, InstrItinClass itin,
1832 string opc, string asm, string cstr, list<dag> pattern>
1833 : NDataXI<oops, iops, f, itin, opc, asm, cstr, pattern> {
1834 let Inst{24} = op24;
1835 let Inst{23} = op23;
1836 let Inst{21-20} = op21_20;
1837 let Inst{11-8} = op11_8;
1841 // Instruction operands.
1846 let Inst{15-12} = Vd{3-0};
1847 let Inst{22} = Vd{4};
1848 let Inst{19-16} = Vn{3-0};
1849 let Inst{7} = Vn{4};
1850 let Inst{3-0} = Vm{3-0};
1851 let Inst{5} = Vm{4};
1854 // NEON VMOVs between scalar and core registers.
1855 class NVLaneOp<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1856 dag oops, dag iops, Format f, InstrItinClass itin,
1857 string opc, string dt, string asm, list<dag> pattern>
1858 : InstARM<AddrModeNone, Size4Bytes, IndexModeNone, f, NeonDomain,
1860 let Inst{27-20} = opcod1;
1861 let Inst{11-8} = opcod2;
1862 let Inst{6-5} = opcod3;
1864 // A8.6.303, A8.6.328, A8.6.329
1865 let Inst{3-0} = 0b0000;
1867 let OutOperandList = oops;
1868 let InOperandList = !con(iops, (ins pred:$p));
1869 let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
1870 let Pattern = pattern;
1871 list<Predicate> Predicates = [HasNEON];
1873 let PostEncoderMethod = "NEONThumb2DupPostEncoder";
1880 let Inst{31-28} = p{3-0};
1882 let Inst{19-16} = V{3-0};
1883 let Inst{15-12} = R{3-0};
1885 class NVGetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1886 dag oops, dag iops, InstrItinClass itin,
1887 string opc, string dt, string asm, list<dag> pattern>
1888 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NGetLnFrm, itin,
1889 opc, dt, asm, pattern>;
1890 class NVSetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1891 dag oops, dag iops, InstrItinClass itin,
1892 string opc, string dt, string asm, list<dag> pattern>
1893 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NSetLnFrm, itin,
1894 opc, dt, asm, pattern>;
1895 class NVDup<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1896 dag oops, dag iops, InstrItinClass itin,
1897 string opc, string dt, string asm, list<dag> pattern>
1898 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NDupFrm, itin,
1899 opc, dt, asm, pattern>;
1901 // Vector Duplicate Lane (from scalar to all elements)
1902 class NVDupLane<bits<4> op19_16, bit op6, dag oops, dag iops,
1903 InstrItinClass itin, string opc, string dt, string asm,
1905 : NDataI<oops, iops, NVDupLnFrm, itin, opc, dt, asm, "", pattern> {
1906 let Inst{24-23} = 0b11;
1907 let Inst{21-20} = 0b11;
1908 let Inst{19-16} = op19_16;
1909 let Inst{11-7} = 0b11000;
1917 let Inst{22} = Vd{4};
1918 let Inst{15-12} = Vd{3-0};
1919 let Inst{5} = Vm{4};
1920 let Inst{3-0} = Vm{3-0};
1923 // NEONFPPat - Same as Pat<>, but requires that the compiler be using NEON
1924 // for single-precision FP.
1925 class NEONFPPat<dag pattern, dag result> : Pat<pattern, result> {
1926 list<Predicate> Predicates = [HasNEON,UseNEONForFP];