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 ExtFrm : Format<13>;
41 def VFPUnaryFrm : Format<14>;
42 def VFPBinaryFrm : Format<15>;
43 def VFPConv1Frm : Format<16>;
44 def VFPConv2Frm : Format<17>;
45 def VFPConv3Frm : Format<18>;
46 def VFPConv4Frm : Format<19>;
47 def VFPConv5Frm : Format<20>;
48 def VFPLdStFrm : Format<21>;
49 def VFPLdStMulFrm : Format<22>;
50 def VFPMiscFrm : Format<23>;
52 def ThumbFrm : Format<24>;
54 def NEONFrm : Format<25>;
55 def NEONGetLnFrm : Format<26>;
56 def NEONSetLnFrm : Format<27>;
57 def NEONDupFrm : Format<28>;
59 def MiscFrm : Format<29>;
60 def ThumbMiscFrm : Format<30>;
62 def NLdStFrm : Format<31>;
63 def N1RegModImmFrm : Format<32>;
64 def N2RegFrm : Format<33>;
65 def NVCVTFrm : Format<34>;
66 def NVDupLnFrm : Format<35>;
67 def N2RegVShLFrm : Format<36>;
68 def N2RegVShRFrm : Format<37>;
72 // the instruction has a Rn register operand.
73 // UnaryDP - Indicates this is a unary data processing instruction, i.e.
74 // it doesn't have a Rn operand.
75 class UnaryDP { bit isUnaryDataProc = 1; }
77 // Xform16Bit - Indicates this Thumb2 instruction may be transformed into
78 // a 16-bit Thumb instruction if certain conditions are met.
79 class Xform16Bit { bit canXformTo16Bit = 1; }
81 //===----------------------------------------------------------------------===//
82 // ARM Instruction flags. These need to match ARMBaseInstrInfo.h.
86 class AddrMode<bits<4> val> {
89 def AddrModeNone : AddrMode<0>;
90 def AddrMode1 : AddrMode<1>;
91 def AddrMode2 : AddrMode<2>;
92 def AddrMode3 : AddrMode<3>;
93 def AddrMode4 : AddrMode<4>;
94 def AddrMode5 : AddrMode<5>;
95 def AddrMode6 : AddrMode<6>;
96 def AddrModeT1_1 : AddrMode<7>;
97 def AddrModeT1_2 : AddrMode<8>;
98 def AddrModeT1_4 : AddrMode<9>;
99 def AddrModeT1_s : AddrMode<10>;
100 def AddrModeT2_i12: AddrMode<11>;
101 def AddrModeT2_i8 : AddrMode<12>;
102 def AddrModeT2_so : AddrMode<13>;
103 def AddrModeT2_pc : AddrMode<14>;
104 def AddrModeT2_i8s4 : AddrMode<15>;
107 class SizeFlagVal<bits<3> val> {
110 def SizeInvalid : SizeFlagVal<0>; // Unset.
111 def SizeSpecial : SizeFlagVal<1>; // Pseudo or special.
112 def Size8Bytes : SizeFlagVal<2>;
113 def Size4Bytes : SizeFlagVal<3>;
114 def Size2Bytes : SizeFlagVal<4>;
116 // Load / store index mode.
117 class IndexMode<bits<2> val> {
120 def IndexModeNone : IndexMode<0>;
121 def IndexModePre : IndexMode<1>;
122 def IndexModePost : IndexMode<2>;
123 def IndexModeUpd : IndexMode<3>;
125 // Instruction execution domain.
126 class Domain<bits<2> val> {
129 def GenericDomain : Domain<0>;
130 def VFPDomain : Domain<1>; // Instructions in VFP domain only
131 def NeonDomain : Domain<2>; // Instructions in Neon domain only
132 def VFPNeonDomain : Domain<3>; // Instructions in both VFP & Neon domains
134 //===----------------------------------------------------------------------===//
136 // ARM special operands.
139 // ARM Predicate operand. Default to 14 = always (AL). Second part is CC
140 // register whose default is 0 (no register).
141 def pred : PredicateOperand<OtherVT, (ops i32imm, CCR),
142 (ops (i32 14), (i32 zero_reg))> {
143 let PrintMethod = "printPredicateOperand";
146 // Conditional code result for instructions whose 's' bit is set, e.g. subs.
147 def cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 zero_reg))> {
148 let PrintMethod = "printSBitModifierOperand";
151 // Same as cc_out except it defaults to setting CPSR.
152 def s_cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 CPSR))> {
153 let PrintMethod = "printSBitModifierOperand";
156 // ARM special operands for disassembly only.
159 def cps_opt : Operand<i32> {
160 let PrintMethod = "printCPSOptionOperand";
163 def msr_mask : Operand<i32> {
164 let PrintMethod = "printMSRMaskOperand";
167 // A8.6.117, A8.6.118. Different instructions are generated for #0 and #-0.
168 // The neg_zero operand translates -0 to -1, -1 to -2, ..., etc.
169 def neg_zero : Operand<i32> {
170 let PrintMethod = "printNegZeroOperand";
173 //===----------------------------------------------------------------------===//
175 // ARM Instruction templates.
178 class InstTemplate<AddrMode am, SizeFlagVal sz, IndexMode im,
179 Format f, Domain d, string cstr, InstrItinClass itin>
181 let Namespace = "ARM";
185 bits<4> AddrModeBits = AM.Value;
188 bits<3> SizeFlag = SZ.Value;
191 bits<2> IndexModeBits = IM.Value;
194 bits<6> Form = F.Value;
197 bits<2> Dom = D.Value;
200 // Attributes specific to ARM instructions...
202 bit isUnaryDataProc = 0;
203 bit canXformTo16Bit = 0;
205 let Constraints = cstr;
206 let Itinerary = itin;
213 class InstARM<AddrMode am, SizeFlagVal sz, IndexMode im,
214 Format f, Domain d, string cstr, InstrItinClass itin>
215 : InstTemplate<am, sz, im, f, d, cstr, itin>, Encoding;
217 // This Encoding-less class is used by Thumb1 to specify the encoding bits later
218 // on by adding flavors to specific instructions.
219 class InstThumb<AddrMode am, SizeFlagVal sz, IndexMode im,
220 Format f, Domain d, string cstr, InstrItinClass itin>
221 : InstTemplate<am, sz, im, f, d, cstr, itin>;
223 class PseudoInst<dag oops, dag iops, InstrItinClass itin,
224 string asm, list<dag> pattern>
225 : InstARM<AddrModeNone, SizeSpecial, IndexModeNone, Pseudo, GenericDomain,
227 let OutOperandList = oops;
228 let InOperandList = iops;
230 let Pattern = pattern;
233 // Almost all ARM instructions are predicable.
234 class I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
235 IndexMode im, Format f, InstrItinClass itin,
236 string opc, string asm, string cstr,
238 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
239 let OutOperandList = oops;
240 let InOperandList = !con(iops, (ins pred:$p));
241 let AsmString = !strconcat(opc, !strconcat("${p}", asm));
242 let Pattern = pattern;
243 list<Predicate> Predicates = [IsARM];
245 // A few are not predicable
246 class InoP<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
247 IndexMode im, Format f, InstrItinClass itin,
248 string opc, string asm, string cstr,
250 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
251 let OutOperandList = oops;
252 let InOperandList = iops;
253 let AsmString = !strconcat(opc, asm);
254 let Pattern = pattern;
255 let isPredicable = 0;
256 list<Predicate> Predicates = [IsARM];
259 // Same as I except it can optionally modify CPSR. Note it's modeled as
260 // an input operand since by default it's a zero register. It will
261 // become an implicit def once it's "flipped".
262 class sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
263 IndexMode im, Format f, InstrItinClass itin,
264 string opc, string asm, string cstr,
266 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
267 let OutOperandList = oops;
268 let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
269 let AsmString = !strconcat(opc, !strconcat("${p}${s}", asm));
270 let Pattern = pattern;
271 list<Predicate> Predicates = [IsARM];
275 class XI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
276 IndexMode im, Format f, InstrItinClass itin,
277 string asm, string cstr, list<dag> pattern>
278 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
279 let OutOperandList = oops;
280 let InOperandList = iops;
282 let Pattern = pattern;
283 list<Predicate> Predicates = [IsARM];
286 class AI<dag oops, dag iops, Format f, InstrItinClass itin,
287 string opc, string asm, list<dag> pattern>
288 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
289 opc, asm, "", pattern>;
290 class AsI<dag oops, dag iops, Format f, InstrItinClass itin,
291 string opc, string asm, list<dag> pattern>
292 : sI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
293 opc, asm, "", pattern>;
294 class AXI<dag oops, dag iops, Format f, InstrItinClass itin,
295 string asm, list<dag> pattern>
296 : XI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
298 class AInoP<dag oops, dag iops, Format f, InstrItinClass itin,
299 string opc, string asm, list<dag> pattern>
300 : InoP<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
301 opc, asm, "", pattern>;
303 // Ctrl flow instructions
304 class ABI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
305 string opc, string asm, list<dag> pattern>
306 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, BrFrm, itin,
307 opc, asm, "", pattern> {
308 let Inst{27-24} = opcod;
310 class ABXI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
311 string asm, list<dag> pattern>
312 : XI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, BrFrm, itin,
314 let Inst{27-24} = opcod;
316 class ABXIx2<dag oops, dag iops, InstrItinClass itin,
317 string asm, list<dag> pattern>
318 : XI<oops, iops, AddrModeNone, Size8Bytes, IndexModeNone, BrMiscFrm, itin,
321 // BR_JT instructions
322 class JTI<dag oops, dag iops, InstrItinClass itin,
323 string asm, list<dag> pattern>
324 : XI<oops, iops, AddrModeNone, SizeSpecial, IndexModeNone, BrMiscFrm, itin,
328 // Atomic load/store instructions
330 class AIldrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
331 string opc, string asm, list<dag> pattern>
332 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, LdStExFrm, itin,
333 opc, asm, "", pattern> {
334 let Inst{27-23} = 0b00011;
335 let Inst{22-21} = opcod;
337 let Inst{11-0} = 0b111110011111;
339 class AIstrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
340 string opc, string asm, list<dag> pattern>
341 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, LdStExFrm, itin,
342 opc, asm, "", pattern> {
343 let Inst{27-23} = 0b00011;
344 let Inst{22-21} = opcod;
346 let Inst{11-4} = 0b11111001;
349 // addrmode1 instructions
350 class AI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
351 string opc, string asm, list<dag> pattern>
352 : I<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
353 opc, asm, "", pattern> {
354 let Inst{24-21} = opcod;
355 let Inst{27-26} = {0,0};
357 class AsI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
358 string opc, string asm, list<dag> pattern>
359 : sI<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
360 opc, asm, "", pattern> {
361 let Inst{24-21} = opcod;
362 let Inst{27-26} = {0,0};
364 class AXI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
365 string asm, list<dag> pattern>
366 : XI<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
368 let Inst{24-21} = opcod;
369 let Inst{27-26} = {0,0};
371 class AI1x2<dag oops, dag iops, Format f, InstrItinClass itin,
372 string opc, string asm, list<dag> pattern>
373 : I<oops, iops, AddrMode1, Size8Bytes, IndexModeNone, f, itin,
374 opc, asm, "", pattern>;
377 // addrmode2 loads and stores
378 class AI2<dag oops, dag iops, Format f, InstrItinClass itin,
379 string opc, string asm, list<dag> pattern>
380 : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
381 opc, asm, "", pattern> {
382 let Inst{27-26} = {0,1};
386 class AI2ldw<dag oops, dag iops, Format f, InstrItinClass itin,
387 string opc, string asm, list<dag> pattern>
388 : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
389 opc, asm, "", pattern> {
390 let Inst{20} = 1; // L bit
391 let Inst{21} = 0; // W bit
392 let Inst{22} = 0; // B bit
393 let Inst{24} = 1; // P bit
394 let Inst{27-26} = {0,1};
396 class AXI2ldw<dag oops, dag iops, Format f, InstrItinClass itin,
397 string asm, list<dag> pattern>
398 : XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
400 let Inst{20} = 1; // L bit
401 let Inst{21} = 0; // W bit
402 let Inst{22} = 0; // B bit
403 let Inst{24} = 1; // P bit
404 let Inst{27-26} = {0,1};
406 class AI2ldb<dag oops, dag iops, Format f, InstrItinClass itin,
407 string opc, string asm, list<dag> pattern>
408 : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
409 opc, asm, "", pattern> {
410 let Inst{20} = 1; // L bit
411 let Inst{21} = 0; // W bit
412 let Inst{22} = 1; // B bit
413 let Inst{24} = 1; // P bit
414 let Inst{27-26} = {0,1};
416 class AXI2ldb<dag oops, dag iops, Format f, InstrItinClass itin,
417 string asm, list<dag> pattern>
418 : XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
420 let Inst{20} = 1; // L bit
421 let Inst{21} = 0; // W bit
422 let Inst{22} = 1; // B bit
423 let Inst{24} = 1; // P bit
424 let Inst{27-26} = {0,1};
428 class AI2stw<dag oops, dag iops, Format f, InstrItinClass itin,
429 string opc, string asm, list<dag> pattern>
430 : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
431 opc, asm, "", pattern> {
432 let Inst{20} = 0; // L bit
433 let Inst{21} = 0; // W bit
434 let Inst{22} = 0; // B bit
435 let Inst{24} = 1; // P bit
436 let Inst{27-26} = {0,1};
438 class AXI2stw<dag oops, dag iops, Format f, InstrItinClass itin,
439 string asm, list<dag> pattern>
440 : XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
442 let Inst{20} = 0; // L bit
443 let Inst{21} = 0; // W bit
444 let Inst{22} = 0; // B bit
445 let Inst{24} = 1; // P bit
446 let Inst{27-26} = {0,1};
448 class AI2stb<dag oops, dag iops, Format f, InstrItinClass itin,
449 string opc, string asm, list<dag> pattern>
450 : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
451 opc, asm, "", pattern> {
452 let Inst{20} = 0; // L bit
453 let Inst{21} = 0; // W bit
454 let Inst{22} = 1; // B bit
455 let Inst{24} = 1; // P bit
456 let Inst{27-26} = {0,1};
458 class AXI2stb<dag oops, dag iops, Format f, InstrItinClass itin,
459 string asm, list<dag> pattern>
460 : XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
462 let Inst{20} = 0; // L bit
463 let Inst{21} = 0; // W bit
464 let Inst{22} = 1; // B bit
465 let Inst{24} = 1; // P bit
466 let Inst{27-26} = {0,1};
470 class AI2ldwpr<dag oops, dag iops, Format f, InstrItinClass itin,
471 string opc, string asm, string cstr, list<dag> pattern>
472 : I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, itin,
473 opc, asm, cstr, pattern> {
474 let Inst{20} = 1; // L bit
475 let Inst{21} = 1; // W bit
476 let Inst{22} = 0; // B bit
477 let Inst{24} = 1; // P bit
478 let Inst{27-26} = {0,1};
480 class AI2ldbpr<dag oops, dag iops, Format f, InstrItinClass itin,
481 string opc, string asm, string cstr, list<dag> pattern>
482 : I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, itin,
483 opc, asm, cstr, pattern> {
484 let Inst{20} = 1; // L bit
485 let Inst{21} = 1; // W bit
486 let Inst{22} = 1; // B bit
487 let Inst{24} = 1; // P bit
488 let Inst{27-26} = {0,1};
491 // Pre-indexed stores
492 class AI2stwpr<dag oops, dag iops, Format f, InstrItinClass itin,
493 string opc, string asm, string cstr, list<dag> pattern>
494 : I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, itin,
495 opc, asm, cstr, pattern> {
496 let Inst{20} = 0; // L bit
497 let Inst{21} = 1; // W bit
498 let Inst{22} = 0; // B bit
499 let Inst{24} = 1; // P bit
500 let Inst{27-26} = {0,1};
502 class AI2stbpr<dag oops, dag iops, Format f, InstrItinClass itin,
503 string opc, string asm, string cstr, list<dag> pattern>
504 : I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, itin,
505 opc, asm, cstr, pattern> {
506 let Inst{20} = 0; // L bit
507 let Inst{21} = 1; // W bit
508 let Inst{22} = 1; // B bit
509 let Inst{24} = 1; // P bit
510 let Inst{27-26} = {0,1};
513 // Post-indexed loads
514 class AI2ldwpo<dag oops, dag iops, Format f, InstrItinClass itin,
515 string opc, string asm, string cstr, list<dag> pattern>
516 : I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, itin,
517 opc, asm, cstr,pattern> {
518 let Inst{20} = 1; // L bit
519 let Inst{21} = 0; // W bit
520 let Inst{22} = 0; // B bit
521 let Inst{24} = 0; // P bit
522 let Inst{27-26} = {0,1};
524 class AI2ldbpo<dag oops, dag iops, Format f, InstrItinClass itin,
525 string opc, string asm, string cstr, list<dag> pattern>
526 : I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, itin,
527 opc, asm, cstr,pattern> {
528 let Inst{20} = 1; // L bit
529 let Inst{21} = 0; // W bit
530 let Inst{22} = 1; // B bit
531 let Inst{24} = 0; // P bit
532 let Inst{27-26} = {0,1};
535 // Post-indexed stores
536 class AI2stwpo<dag oops, dag iops, Format f, InstrItinClass itin,
537 string opc, string asm, string cstr, list<dag> pattern>
538 : I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, itin,
539 opc, asm, cstr,pattern> {
540 let Inst{20} = 0; // L bit
541 let Inst{21} = 0; // W bit
542 let Inst{22} = 0; // B bit
543 let Inst{24} = 0; // P bit
544 let Inst{27-26} = {0,1};
546 class AI2stbpo<dag oops, dag iops, Format f, InstrItinClass itin,
547 string opc, string asm, string cstr, list<dag> pattern>
548 : I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, itin,
549 opc, asm, cstr,pattern> {
550 let Inst{20} = 0; // L bit
551 let Inst{21} = 0; // W bit
552 let Inst{22} = 1; // B bit
553 let Inst{24} = 0; // P bit
554 let Inst{27-26} = {0,1};
557 // addrmode3 instructions
558 class AI3<dag oops, dag iops, Format f, InstrItinClass itin,
559 string opc, string asm, list<dag> pattern>
560 : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
561 opc, asm, "", pattern>;
562 class AXI3<dag oops, dag iops, Format f, InstrItinClass itin,
563 string asm, list<dag> pattern>
564 : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
568 class AI3ldh<dag oops, dag iops, Format f, InstrItinClass itin,
569 string opc, string asm, list<dag> pattern>
570 : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
571 opc, asm, "", pattern> {
573 let Inst{5} = 1; // H bit
574 let Inst{6} = 0; // S bit
576 let Inst{20} = 1; // L bit
577 let Inst{21} = 0; // W bit
578 let Inst{24} = 1; // P bit
579 let Inst{27-25} = 0b000;
581 class AXI3ldh<dag oops, dag iops, Format f, InstrItinClass itin,
582 string asm, list<dag> pattern>
583 : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
586 let Inst{5} = 1; // H bit
587 let Inst{6} = 0; // S bit
589 let Inst{20} = 1; // L bit
590 let Inst{21} = 0; // W bit
591 let Inst{24} = 1; // P bit
593 class AI3ldsh<dag oops, dag iops, Format f, InstrItinClass itin,
594 string opc, string asm, list<dag> pattern>
595 : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
596 opc, asm, "", pattern> {
598 let Inst{5} = 1; // H bit
599 let Inst{6} = 1; // S bit
601 let Inst{20} = 1; // L bit
602 let Inst{21} = 0; // W bit
603 let Inst{24} = 1; // P bit
604 let Inst{27-25} = 0b000;
606 class AXI3ldsh<dag oops, dag iops, Format f, InstrItinClass itin,
607 string asm, list<dag> pattern>
608 : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
611 let Inst{5} = 1; // H bit
612 let Inst{6} = 1; // S bit
614 let Inst{20} = 1; // L bit
615 let Inst{21} = 0; // W bit
616 let Inst{24} = 1; // P bit
618 class AI3ldsb<dag oops, dag iops, Format f, InstrItinClass itin,
619 string opc, string asm, list<dag> pattern>
620 : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
621 opc, asm, "", pattern> {
623 let Inst{5} = 0; // H bit
624 let Inst{6} = 1; // S bit
626 let Inst{20} = 1; // L bit
627 let Inst{21} = 0; // W bit
628 let Inst{24} = 1; // P bit
629 let Inst{27-25} = 0b000;
631 class AXI3ldsb<dag oops, dag iops, Format f, InstrItinClass itin,
632 string asm, list<dag> pattern>
633 : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
636 let Inst{5} = 0; // H bit
637 let Inst{6} = 1; // S bit
639 let Inst{20} = 1; // L bit
640 let Inst{21} = 0; // W bit
641 let Inst{24} = 1; // P bit
643 class AI3ldd<dag oops, dag iops, Format f, InstrItinClass itin,
644 string opc, string asm, list<dag> pattern>
645 : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
646 opc, asm, "", pattern> {
648 let Inst{5} = 0; // H bit
649 let Inst{6} = 1; // S bit
651 let Inst{20} = 0; // L bit
652 let Inst{21} = 0; // W bit
653 let Inst{24} = 1; // P bit
654 let Inst{27-25} = 0b000;
658 class AI3sth<dag oops, dag iops, Format f, InstrItinClass itin,
659 string opc, string asm, list<dag> pattern>
660 : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
661 opc, asm, "", pattern> {
663 let Inst{5} = 1; // H bit
664 let Inst{6} = 0; // S bit
666 let Inst{20} = 0; // L bit
667 let Inst{21} = 0; // W bit
668 let Inst{24} = 1; // P bit
669 let Inst{27-25} = 0b000;
671 class AXI3sth<dag oops, dag iops, Format f, InstrItinClass itin,
672 string asm, list<dag> pattern>
673 : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
676 let Inst{5} = 1; // H bit
677 let Inst{6} = 0; // S bit
679 let Inst{20} = 0; // L bit
680 let Inst{21} = 0; // W bit
681 let Inst{24} = 1; // P bit
683 class AI3std<dag oops, dag iops, Format f, InstrItinClass itin,
684 string opc, string asm, list<dag> pattern>
685 : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
686 opc, asm, "", pattern> {
688 let Inst{5} = 1; // H bit
689 let Inst{6} = 1; // S bit
691 let Inst{20} = 0; // L bit
692 let Inst{21} = 0; // W bit
693 let Inst{24} = 1; // P bit
694 let Inst{27-25} = 0b000;
698 class AI3ldhpr<dag oops, dag iops, Format f, InstrItinClass itin,
699 string opc, string asm, string cstr, list<dag> pattern>
700 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
701 opc, asm, cstr, pattern> {
703 let Inst{5} = 1; // H bit
704 let Inst{6} = 0; // S bit
706 let Inst{20} = 1; // L bit
707 let Inst{21} = 1; // W bit
708 let Inst{24} = 1; // P bit
709 let Inst{27-25} = 0b000;
711 class AI3ldshpr<dag oops, dag iops, Format f, InstrItinClass itin,
712 string opc, string asm, string cstr, list<dag> pattern>
713 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
714 opc, asm, cstr, pattern> {
716 let Inst{5} = 1; // H bit
717 let Inst{6} = 1; // S bit
719 let Inst{20} = 1; // L bit
720 let Inst{21} = 1; // W bit
721 let Inst{24} = 1; // P bit
722 let Inst{27-25} = 0b000;
724 class AI3ldsbpr<dag oops, dag iops, Format f, InstrItinClass itin,
725 string opc, string asm, string cstr, list<dag> pattern>
726 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
727 opc, asm, cstr, pattern> {
729 let Inst{5} = 0; // H bit
730 let Inst{6} = 1; // S bit
732 let Inst{20} = 1; // L bit
733 let Inst{21} = 1; // W bit
734 let Inst{24} = 1; // P bit
735 let Inst{27-25} = 0b000;
737 class AI3lddpr<dag oops, dag iops, Format f, InstrItinClass itin,
738 string opc, string asm, string cstr, list<dag> pattern>
739 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
740 opc, asm, cstr, pattern> {
742 let Inst{5} = 0; // H bit
743 let Inst{6} = 1; // S bit
745 let Inst{20} = 0; // L bit
746 let Inst{21} = 1; // W bit
747 let Inst{24} = 1; // P bit
748 let Inst{27-25} = 0b000;
752 // Pre-indexed stores
753 class AI3sthpr<dag oops, dag iops, Format f, InstrItinClass itin,
754 string opc, string asm, string cstr, list<dag> pattern>
755 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
756 opc, asm, cstr, pattern> {
758 let Inst{5} = 1; // H bit
759 let Inst{6} = 0; // S bit
761 let Inst{20} = 0; // L bit
762 let Inst{21} = 1; // W bit
763 let Inst{24} = 1; // P bit
764 let Inst{27-25} = 0b000;
766 class AI3stdpr<dag oops, dag iops, Format f, InstrItinClass itin,
767 string opc, string asm, string cstr, list<dag> pattern>
768 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
769 opc, asm, cstr, pattern> {
771 let Inst{5} = 1; // H bit
772 let Inst{6} = 1; // S bit
774 let Inst{20} = 0; // L bit
775 let Inst{21} = 1; // W bit
776 let Inst{24} = 1; // P bit
777 let Inst{27-25} = 0b000;
780 // Post-indexed loads
781 class AI3ldhpo<dag oops, dag iops, Format f, InstrItinClass itin,
782 string opc, string asm, string cstr, list<dag> pattern>
783 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
784 opc, asm, cstr,pattern> {
786 let Inst{5} = 1; // H bit
787 let Inst{6} = 0; // S bit
789 let Inst{20} = 1; // L bit
790 let Inst{21} = 0; // W bit
791 let Inst{24} = 0; // P bit
792 let Inst{27-25} = 0b000;
794 class AI3ldshpo<dag oops, dag iops, Format f, InstrItinClass itin,
795 string opc, string asm, string cstr, list<dag> pattern>
796 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
797 opc, asm, cstr,pattern> {
799 let Inst{5} = 1; // H bit
800 let Inst{6} = 1; // S bit
802 let Inst{20} = 1; // L bit
803 let Inst{21} = 0; // W bit
804 let Inst{24} = 0; // P bit
805 let Inst{27-25} = 0b000;
807 class AI3ldsbpo<dag oops, dag iops, Format f, InstrItinClass itin,
808 string opc, string asm, string cstr, list<dag> pattern>
809 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
810 opc, asm, cstr,pattern> {
812 let Inst{5} = 0; // H bit
813 let Inst{6} = 1; // S bit
815 let Inst{20} = 1; // L bit
816 let Inst{21} = 0; // W bit
817 let Inst{24} = 0; // P bit
818 let Inst{27-25} = 0b000;
820 class AI3lddpo<dag oops, dag iops, Format f, InstrItinClass itin,
821 string opc, string asm, string cstr, list<dag> pattern>
822 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
823 opc, asm, cstr, pattern> {
825 let Inst{5} = 0; // H bit
826 let Inst{6} = 1; // S bit
828 let Inst{20} = 0; // L bit
829 let Inst{21} = 0; // W bit
830 let Inst{24} = 0; // P bit
831 let Inst{27-25} = 0b000;
834 // Post-indexed stores
835 class AI3sthpo<dag oops, dag iops, Format f, InstrItinClass itin,
836 string opc, string asm, string cstr, list<dag> pattern>
837 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
838 opc, asm, cstr,pattern> {
840 let Inst{5} = 1; // H bit
841 let Inst{6} = 0; // S bit
843 let Inst{20} = 0; // L bit
844 let Inst{21} = 0; // W bit
845 let Inst{24} = 0; // P bit
846 let Inst{27-25} = 0b000;
848 class AI3stdpo<dag oops, dag iops, Format f, InstrItinClass itin,
849 string opc, string asm, string cstr, list<dag> pattern>
850 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
851 opc, asm, cstr, pattern> {
853 let Inst{5} = 1; // H bit
854 let Inst{6} = 1; // S bit
856 let Inst{20} = 0; // L bit
857 let Inst{21} = 0; // W bit
858 let Inst{24} = 0; // P bit
859 let Inst{27-25} = 0b000;
862 // addrmode4 instructions
863 class AXI4ld<dag oops, dag iops, IndexMode im, Format f, InstrItinClass itin,
864 string asm, string cstr, list<dag> pattern>
865 : XI<oops, iops, AddrMode4, Size4Bytes, im, f, itin,
866 asm, cstr, pattern> {
867 let Inst{20} = 1; // L bit
868 let Inst{22} = 0; // S bit
869 let Inst{27-25} = 0b100;
871 class AXI4st<dag oops, dag iops, IndexMode im, Format f, InstrItinClass itin,
872 string asm, string cstr, list<dag> pattern>
873 : XI<oops, iops, AddrMode4, Size4Bytes, im, f, itin,
874 asm, cstr, pattern> {
875 let Inst{20} = 0; // L bit
876 let Inst{22} = 0; // S bit
877 let Inst{27-25} = 0b100;
880 // Unsigned multiply, multiply-accumulate instructions.
881 class AMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
882 string opc, string asm, list<dag> pattern>
883 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
884 opc, asm, "", pattern> {
885 let Inst{7-4} = 0b1001;
886 let Inst{20} = 0; // S bit
887 let Inst{27-21} = opcod;
889 class AsMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
890 string opc, string asm, list<dag> pattern>
891 : sI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
892 opc, asm, "", pattern> {
893 let Inst{7-4} = 0b1001;
894 let Inst{27-21} = opcod;
897 // Most significant word multiply
898 class AMul2I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
899 string opc, string asm, list<dag> pattern>
900 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
901 opc, asm, "", pattern> {
902 let Inst{7-4} = 0b1001;
904 let Inst{27-21} = opcod;
907 // SMUL<x><y> / SMULW<y> / SMLA<x><y> / SMLAW<x><y>
908 class AMulxyI<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
909 string opc, string asm, list<dag> pattern>
910 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
911 opc, asm, "", pattern> {
915 let Inst{27-21} = opcod;
918 // Extend instructions.
919 class AExtI<bits<8> opcod, dag oops, dag iops, InstrItinClass itin,
920 string opc, string asm, list<dag> pattern>
921 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ExtFrm, itin,
922 opc, asm, "", pattern> {
923 let Inst{7-4} = 0b0111;
924 let Inst{27-20} = opcod;
927 // Misc Arithmetic instructions.
928 class AMiscA1I<bits<8> opcod, dag oops, dag iops, InstrItinClass itin,
929 string opc, string asm, list<dag> pattern>
930 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ArithMiscFrm, itin,
931 opc, asm, "", pattern> {
932 let Inst{27-20} = opcod;
935 //===----------------------------------------------------------------------===//
937 // ARMPat - Same as Pat<>, but requires that the compiler be in ARM mode.
938 class ARMPat<dag pattern, dag result> : Pat<pattern, result> {
939 list<Predicate> Predicates = [IsARM];
941 class ARMV5TEPat<dag pattern, dag result> : Pat<pattern, result> {
942 list<Predicate> Predicates = [IsARM, HasV5TE];
944 class ARMV6Pat<dag pattern, dag result> : Pat<pattern, result> {
945 list<Predicate> Predicates = [IsARM, HasV6];
948 //===----------------------------------------------------------------------===//
950 // Thumb Instruction Format Definitions.
953 // TI - Thumb instruction.
955 class ThumbI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
956 InstrItinClass itin, string asm, string cstr, list<dag> pattern>
957 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
958 let OutOperandList = oops;
959 let InOperandList = iops;
961 let Pattern = pattern;
962 list<Predicate> Predicates = [IsThumb];
965 class TI<dag oops, dag iops, InstrItinClass itin, string asm, list<dag> pattern>
966 : ThumbI<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "", pattern>;
968 // Two-address instructions
969 class TIt<dag oops, dag iops, InstrItinClass itin, string asm,
971 : ThumbI<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "$lhs = $dst",
974 // tBL, tBX 32-bit instructions
975 class TIx2<bits<5> opcod1, bits<2> opcod2, bit opcod3,
976 dag oops, dag iops, InstrItinClass itin, string asm,
978 : ThumbI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>,
980 let Inst{31-27} = opcod1;
981 let Inst{15-14} = opcod2;
982 let Inst{12} = opcod3;
985 // BR_JT instructions
986 class TJTI<dag oops, dag iops, InstrItinClass itin, string asm,
988 : ThumbI<oops, iops, AddrModeNone, SizeSpecial, itin, asm, "", pattern>;
991 class Thumb1I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
992 InstrItinClass itin, string asm, string cstr, list<dag> pattern>
993 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
994 let OutOperandList = oops;
995 let InOperandList = iops;
997 let Pattern = pattern;
998 list<Predicate> Predicates = [IsThumb1Only];
1001 class T1I<dag oops, dag iops, InstrItinClass itin,
1002 string asm, list<dag> pattern>
1003 : Thumb1I<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "", pattern>;
1004 class T1Ix2<dag oops, dag iops, InstrItinClass itin,
1005 string asm, list<dag> pattern>
1006 : Thumb1I<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>;
1007 class T1JTI<dag oops, dag iops, InstrItinClass itin,
1008 string asm, list<dag> pattern>
1009 : Thumb1I<oops, iops, AddrModeNone, SizeSpecial, itin, asm, "", pattern>;
1011 // Two-address instructions
1012 class T1It<dag oops, dag iops, InstrItinClass itin,
1013 string asm, string cstr, list<dag> pattern>
1014 : Thumb1I<oops, iops, AddrModeNone, Size2Bytes, itin,
1015 asm, cstr, pattern>;
1017 // Thumb1 instruction that can either be predicated or set CPSR.
1018 class Thumb1sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1019 InstrItinClass itin,
1020 string opc, string asm, string cstr, list<dag> pattern>
1021 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1022 let OutOperandList = !con(oops, (outs s_cc_out:$s));
1023 let InOperandList = !con(iops, (ins pred:$p));
1024 let AsmString = !strconcat(opc, !strconcat("${s}${p}", asm));
1025 let Pattern = pattern;
1026 list<Predicate> Predicates = [IsThumb1Only];
1029 class T1sI<dag oops, dag iops, InstrItinClass itin,
1030 string opc, string asm, list<dag> pattern>
1031 : Thumb1sI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm, "", pattern>;
1033 // Two-address instructions
1034 class T1sIt<dag oops, dag iops, InstrItinClass itin,
1035 string opc, string asm, list<dag> pattern>
1036 : Thumb1sI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm,
1037 "$lhs = $dst", pattern>;
1039 // Thumb1 instruction that can be predicated.
1040 class Thumb1pI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1041 InstrItinClass itin,
1042 string opc, string asm, string cstr, list<dag> pattern>
1043 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1044 let OutOperandList = oops;
1045 let InOperandList = !con(iops, (ins pred:$p));
1046 let AsmString = !strconcat(opc, !strconcat("${p}", asm));
1047 let Pattern = pattern;
1048 list<Predicate> Predicates = [IsThumb1Only];
1051 class T1pI<dag oops, dag iops, InstrItinClass itin,
1052 string opc, string asm, list<dag> pattern>
1053 : Thumb1pI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm, "", pattern>;
1055 // Two-address instructions
1056 class T1pIt<dag oops, dag iops, InstrItinClass itin,
1057 string opc, string asm, list<dag> pattern>
1058 : Thumb1pI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm,
1059 "$lhs = $dst", pattern>;
1061 class T1pI1<dag oops, dag iops, InstrItinClass itin,
1062 string opc, string asm, list<dag> pattern>
1063 : Thumb1pI<oops, iops, AddrModeT1_1, Size2Bytes, itin, opc, asm, "", pattern>;
1064 class T1pI2<dag oops, dag iops, InstrItinClass itin,
1065 string opc, string asm, list<dag> pattern>
1066 : Thumb1pI<oops, iops, AddrModeT1_2, Size2Bytes, itin, opc, asm, "", pattern>;
1067 class T1pI4<dag oops, dag iops, InstrItinClass itin,
1068 string opc, string asm, list<dag> pattern>
1069 : Thumb1pI<oops, iops, AddrModeT1_4, Size2Bytes, itin, opc, asm, "", pattern>;
1070 class T1pIs<dag oops, dag iops,
1071 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1072 : Thumb1pI<oops, iops, AddrModeT1_s, Size2Bytes, itin, opc, asm, "", pattern>;
1074 class Encoding16 : Encoding {
1075 let Inst{31-16} = 0x0000;
1078 // A6.2 16-bit Thumb instruction encoding
1079 class T1Encoding<bits<6> opcode> : Encoding16 {
1080 let Inst{15-10} = opcode;
1083 // A6.2.1 Shift (immediate), add, subtract, move, and compare encoding.
1084 class T1General<bits<5> opcode> : Encoding16 {
1085 let Inst{15-14} = 0b00;
1086 let Inst{13-9} = opcode;
1089 // A6.2.2 Data-processing encoding.
1090 class T1DataProcessing<bits<4> opcode> : Encoding16 {
1091 let Inst{15-10} = 0b010000;
1092 let Inst{9-6} = opcode;
1095 // A6.2.3 Special data instructions and branch and exchange encoding.
1096 class T1Special<bits<4> opcode> : Encoding16 {
1097 let Inst{15-10} = 0b010001;
1098 let Inst{9-6} = opcode;
1101 // A6.2.4 Load/store single data item encoding.
1102 class T1LoadStore<bits<4> opA, bits<3> opB> : Encoding16 {
1103 let Inst{15-12} = opA;
1104 let Inst{11-9} = opB;
1106 class T1LdSt<bits<3> opB> : T1LoadStore<0b0101, opB>;
1107 class T1LdSt4Imm<bits<3> opB> : T1LoadStore<0b0110, opB>; // Immediate, 4 bytes
1108 class T1LdSt1Imm<bits<3> opB> : T1LoadStore<0b0111, opB>; // Immediate, 1 byte
1109 class T1LdSt2Imm<bits<3> opB> : T1LoadStore<0b1000, opB>; // Immediate, 2 bytes
1110 class T1LdStSP<bits<3> opB> : T1LoadStore<0b1001, opB>; // SP relative
1112 // A6.2.5 Miscellaneous 16-bit instructions encoding.
1113 class T1Misc<bits<7> opcode> : Encoding16 {
1114 let Inst{15-12} = 0b1011;
1115 let Inst{11-5} = opcode;
1118 // Thumb2I - Thumb2 instruction. Almost all Thumb2 instructions are predicable.
1119 class Thumb2I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1120 InstrItinClass itin,
1121 string opc, string asm, string cstr, list<dag> pattern>
1122 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1123 let OutOperandList = oops;
1124 let InOperandList = !con(iops, (ins pred:$p));
1125 let AsmString = !strconcat(opc, !strconcat("${p}", asm));
1126 let Pattern = pattern;
1127 list<Predicate> Predicates = [IsThumb2];
1130 // Same as Thumb2I except it can optionally modify CPSR. Note it's modeled as
1131 // an input operand since by default it's a zero register. It will
1132 // become an implicit def once it's "flipped".
1133 // FIXME: This uses unified syntax so {s} comes before {p}. We should make it
1135 class Thumb2sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1136 InstrItinClass itin,
1137 string opc, string asm, string cstr, list<dag> pattern>
1138 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1139 let OutOperandList = oops;
1140 let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
1141 let AsmString = !strconcat(opc, !strconcat("${s}${p}", asm));
1142 let Pattern = pattern;
1143 list<Predicate> Predicates = [IsThumb2];
1147 class Thumb2XI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1148 InstrItinClass itin,
1149 string asm, string cstr, list<dag> pattern>
1150 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1151 let OutOperandList = oops;
1152 let InOperandList = iops;
1153 let AsmString = asm;
1154 let Pattern = pattern;
1155 list<Predicate> Predicates = [IsThumb2];
1158 class ThumbXI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1159 InstrItinClass itin,
1160 string asm, string cstr, list<dag> pattern>
1161 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1162 let OutOperandList = oops;
1163 let InOperandList = iops;
1164 let AsmString = asm;
1165 let Pattern = pattern;
1166 list<Predicate> Predicates = [IsThumb1Only];
1169 class T2I<dag oops, dag iops, InstrItinClass itin,
1170 string opc, string asm, list<dag> pattern>
1171 : Thumb2I<oops, iops, AddrModeNone, Size4Bytes, itin, opc, asm, "", pattern>;
1172 class T2Ii12<dag oops, dag iops, InstrItinClass itin,
1173 string opc, string asm, list<dag> pattern>
1174 : Thumb2I<oops, iops, AddrModeT2_i12, Size4Bytes, itin, opc, asm, "",pattern>;
1175 class T2Ii8<dag oops, dag iops, InstrItinClass itin,
1176 string opc, string asm, list<dag> pattern>
1177 : Thumb2I<oops, iops, AddrModeT2_i8, Size4Bytes, itin, opc, asm, "", pattern>;
1178 class T2Iso<dag oops, dag iops, InstrItinClass itin,
1179 string opc, string asm, list<dag> pattern>
1180 : Thumb2I<oops, iops, AddrModeT2_so, Size4Bytes, itin, opc, asm, "", pattern>;
1181 class T2Ipc<dag oops, dag iops, InstrItinClass itin,
1182 string opc, string asm, list<dag> pattern>
1183 : Thumb2I<oops, iops, AddrModeT2_pc, Size4Bytes, itin, opc, asm, "", pattern>;
1184 class T2Ii8s4<bit P, bit W, bit load, dag oops, dag iops, InstrItinClass itin,
1185 string opc, string asm, list<dag> pattern>
1186 : Thumb2I<oops, iops, AddrModeT2_i8s4, Size4Bytes, itin, opc, asm, "",
1188 let Inst{31-27} = 0b11101;
1189 let Inst{26-25} = 0b00;
1191 let Inst{23} = ?; // The U bit.
1194 let Inst{20} = load;
1197 class T2sI<dag oops, dag iops, InstrItinClass itin,
1198 string opc, string asm, list<dag> pattern>
1199 : Thumb2sI<oops, iops, AddrModeNone, Size4Bytes, itin, opc, asm, "", pattern>;
1201 class T2XI<dag oops, dag iops, InstrItinClass itin,
1202 string asm, list<dag> pattern>
1203 : Thumb2XI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>;
1204 class T2JTI<dag oops, dag iops, InstrItinClass itin,
1205 string asm, list<dag> pattern>
1206 : Thumb2XI<oops, iops, AddrModeNone, SizeSpecial, itin, asm, "", pattern>;
1208 class T2Ix2<dag oops, dag iops, InstrItinClass itin,
1209 string opc, string asm, list<dag> pattern>
1210 : Thumb2I<oops, iops, AddrModeNone, Size8Bytes, itin, opc, asm, "", pattern>;
1212 // Two-address instructions
1213 class T2XIt<dag oops, dag iops, InstrItinClass itin,
1214 string asm, string cstr, list<dag> pattern>
1215 : Thumb2XI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, cstr, pattern>;
1217 // T2Iidxldst - Thumb2 indexed load / store instructions.
1218 class T2Iidxldst<bit signed, bits<2> opcod, bit load, bit pre,
1220 AddrMode am, IndexMode im, InstrItinClass itin,
1221 string opc, string asm, string cstr, list<dag> pattern>
1222 : InstARM<am, Size4Bytes, im, ThumbFrm, GenericDomain, cstr, itin> {
1223 let OutOperandList = oops;
1224 let InOperandList = !con(iops, (ins pred:$p));
1225 let AsmString = !strconcat(opc, !strconcat("${p}", asm));
1226 let Pattern = pattern;
1227 list<Predicate> Predicates = [IsThumb2];
1228 let Inst{31-27} = 0b11111;
1229 let Inst{26-25} = 0b00;
1230 let Inst{24} = signed;
1232 let Inst{22-21} = opcod;
1233 let Inst{20} = load;
1235 // (P, W) = (1, 1) Pre-indexed or (0, 1) Post-indexed
1236 let Inst{10} = pre; // The P bit.
1237 let Inst{8} = 1; // The W bit.
1240 // Helper class for disassembly only
1241 // A6.3.16 & A6.3.17
1242 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1243 class T2I_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops, dag iops,
1244 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1245 : T2I<oops, iops, itin, opc, asm, pattern> {
1246 let Inst{31-27} = 0b11111;
1247 let Inst{26-24} = 0b011;
1248 let Inst{23} = long;
1249 let Inst{22-20} = op22_20;
1250 let Inst{7-4} = op7_4;
1253 // Tv5Pat - Same as Pat<>, but requires V5T Thumb mode.
1254 class Tv5Pat<dag pattern, dag result> : Pat<pattern, result> {
1255 list<Predicate> Predicates = [IsThumb1Only, HasV5T];
1258 // T1Pat - Same as Pat<>, but requires that the compiler be in Thumb1 mode.
1259 class T1Pat<dag pattern, dag result> : Pat<pattern, result> {
1260 list<Predicate> Predicates = [IsThumb1Only];
1263 // T2Pat - Same as Pat<>, but requires that the compiler be in Thumb2 mode.
1264 class T2Pat<dag pattern, dag result> : Pat<pattern, result> {
1265 list<Predicate> Predicates = [IsThumb2];
1268 //===----------------------------------------------------------------------===//
1270 //===----------------------------------------------------------------------===//
1271 // ARM VFP Instruction templates.
1274 // Almost all VFP instructions are predicable.
1275 class VFPI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1276 IndexMode im, Format f, InstrItinClass itin,
1277 string opc, string asm, string cstr, list<dag> pattern>
1278 : InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
1279 let OutOperandList = oops;
1280 let InOperandList = !con(iops, (ins pred:$p));
1281 let AsmString = !strconcat(opc, !strconcat("${p}", asm));
1282 let Pattern = pattern;
1283 list<Predicate> Predicates = [HasVFP2];
1287 class VFPXI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1288 IndexMode im, Format f, InstrItinClass itin,
1289 string asm, string cstr, list<dag> pattern>
1290 : InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
1291 let OutOperandList = oops;
1292 let InOperandList = iops;
1293 let AsmString = asm;
1294 let Pattern = pattern;
1295 list<Predicate> Predicates = [HasVFP2];
1298 class VFPAI<dag oops, dag iops, Format f, InstrItinClass itin,
1299 string opc, string asm, list<dag> pattern>
1300 : VFPI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
1301 opc, asm, "", pattern>;
1303 // ARM VFP addrmode5 loads and stores
1304 class ADI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
1305 InstrItinClass itin,
1306 string opc, string asm, list<dag> pattern>
1307 : VFPI<oops, iops, AddrMode5, Size4Bytes, IndexModeNone,
1308 VFPLdStFrm, itin, opc, asm, "", pattern> {
1309 // TODO: Mark the instructions with the appropriate subtarget info.
1310 let Inst{27-24} = opcod1;
1311 let Inst{21-20} = opcod2;
1312 let Inst{11-8} = 0b1011;
1314 // 64-bit loads & stores operate on both NEON and VFP pipelines.
1315 let Dom = VFPNeonDomain.Value;
1318 class ASI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
1319 InstrItinClass itin,
1320 string opc, string asm, list<dag> pattern>
1321 : VFPI<oops, iops, AddrMode5, Size4Bytes, IndexModeNone,
1322 VFPLdStFrm, itin, opc, asm, "", pattern> {
1323 // TODO: Mark the instructions with the appropriate subtarget info.
1324 let Inst{27-24} = opcod1;
1325 let Inst{21-20} = opcod2;
1326 let Inst{11-8} = 0b1010;
1329 // Load / store multiple
1330 class AXDI5<dag oops, dag iops, IndexMode im, InstrItinClass itin,
1331 string asm, string cstr, list<dag> pattern>
1332 : VFPXI<oops, iops, AddrMode5, Size4Bytes, im,
1333 VFPLdStMulFrm, itin, asm, cstr, pattern> {
1334 // TODO: Mark the instructions with the appropriate subtarget info.
1335 let Inst{27-25} = 0b110;
1336 let Inst{11-8} = 0b1011;
1338 // 64-bit loads & stores operate on both NEON and VFP pipelines.
1339 let Dom = VFPNeonDomain.Value;
1342 class AXSI5<dag oops, dag iops, IndexMode im, InstrItinClass itin,
1343 string asm, string cstr, list<dag> pattern>
1344 : VFPXI<oops, iops, AddrMode5, Size4Bytes, im,
1345 VFPLdStMulFrm, itin, asm, cstr, pattern> {
1346 // TODO: Mark the instructions with the appropriate subtarget info.
1347 let Inst{27-25} = 0b110;
1348 let Inst{11-8} = 0b1010;
1351 // Double precision, unary
1352 class ADuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1353 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1354 string asm, list<dag> pattern>
1355 : VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
1356 let Inst{27-23} = opcod1;
1357 let Inst{21-20} = opcod2;
1358 let Inst{19-16} = opcod3;
1359 let Inst{11-8} = 0b1011;
1360 let Inst{7-6} = opcod4;
1361 let Inst{4} = opcod5;
1364 // Double precision, binary
1365 class ADbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1366 dag iops, InstrItinClass itin, string opc, string asm,
1368 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1369 let Inst{27-23} = opcod1;
1370 let Inst{21-20} = opcod2;
1371 let Inst{11-8} = 0b1011;
1376 // Double precision, binary, VML[AS] (for additional predicate)
1377 class ADbI_vmlX<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1378 dag iops, InstrItinClass itin, string opc, string asm,
1380 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1381 let Inst{27-23} = opcod1;
1382 let Inst{21-20} = opcod2;
1383 let Inst{11-8} = 0b1011;
1386 list<Predicate> Predicates = [HasVFP2, UseVMLx];
1390 // Single precision, unary
1391 class ASuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1392 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1393 string asm, list<dag> pattern>
1394 : VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
1395 let Inst{27-23} = opcod1;
1396 let Inst{21-20} = opcod2;
1397 let Inst{19-16} = opcod3;
1398 let Inst{11-8} = 0b1010;
1399 let Inst{7-6} = opcod4;
1400 let Inst{4} = opcod5;
1403 // Single precision unary, if no NEON
1404 // Same as ASuI except not available if NEON is enabled
1405 class ASuIn<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1406 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1407 string asm, list<dag> pattern>
1408 : ASuI<opcod1, opcod2, opcod3, opcod4, opcod5, oops, iops, itin, opc, asm,
1410 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1413 // Single precision, binary
1414 class ASbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops, dag iops,
1415 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1416 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1417 let Inst{27-23} = opcod1;
1418 let Inst{21-20} = opcod2;
1419 let Inst{11-8} = 0b1010;
1424 // Single precision binary, if no NEON
1425 // Same as ASbI except not available if NEON is enabled
1426 class ASbIn<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1427 dag iops, InstrItinClass itin, string opc, string asm,
1429 : ASbI<opcod1, opcod2, op6, op4, oops, iops, itin, opc, asm, pattern> {
1430 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1433 // VFP conversion instructions
1434 class AVConv1I<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
1435 dag oops, dag iops, InstrItinClass itin, string opc, string asm,
1437 : VFPAI<oops, iops, VFPConv1Frm, itin, opc, asm, pattern> {
1438 let Inst{27-23} = opcod1;
1439 let Inst{21-20} = opcod2;
1440 let Inst{19-16} = opcod3;
1441 let Inst{11-8} = opcod4;
1446 // VFP conversion between floating-point and fixed-point
1447 class AVConv1XI<bits<5> op1, bits<2> op2, bits<4> op3, bits<4> op4, bit op5,
1448 dag oops, dag iops, InstrItinClass itin, string opc, string asm,
1450 : AVConv1I<op1, op2, op3, op4, oops, iops, itin, opc, asm, pattern> {
1451 // size (fixed-point number): sx == 0 ? 16 : 32
1452 let Inst{7} = op5; // sx
1455 // VFP conversion instructions, if no NEON
1456 class AVConv1In<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
1457 dag oops, dag iops, InstrItinClass itin,
1458 string opc, string asm, list<dag> pattern>
1459 : AVConv1I<opcod1, opcod2, opcod3, opcod4, oops, iops, itin, opc, asm,
1461 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1464 class AVConvXI<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops, Format f,
1465 InstrItinClass itin,
1466 string opc, string asm, list<dag> pattern>
1467 : VFPAI<oops, iops, f, itin, opc, asm, pattern> {
1468 let Inst{27-20} = opcod1;
1469 let Inst{11-8} = opcod2;
1473 class AVConv2I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1474 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1475 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv2Frm, itin, opc, asm, pattern>;
1477 class AVConv3I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1478 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1479 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv3Frm, itin, opc, asm, pattern>;
1481 class AVConv4I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1482 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1483 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv4Frm, itin, opc, asm, pattern>;
1485 class AVConv5I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1486 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1487 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv5Frm, itin, opc, asm, pattern>;
1489 //===----------------------------------------------------------------------===//
1491 //===----------------------------------------------------------------------===//
1492 // ARM NEON Instruction templates.
1495 class NeonI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
1496 InstrItinClass itin, string opc, string dt, string asm, string cstr,
1498 : InstARM<am, Size4Bytes, im, f, NeonDomain, cstr, itin> {
1499 let OutOperandList = oops;
1500 let InOperandList = !con(iops, (ins pred:$p));
1501 let AsmString = !strconcat(
1502 !strconcat(!strconcat(opc, "${p}"), !strconcat(".", dt)),
1503 !strconcat("\t", asm));
1504 let Pattern = pattern;
1505 list<Predicate> Predicates = [HasNEON];
1508 // Same as NeonI except it does not have a "data type" specifier.
1509 class NeonXI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
1510 InstrItinClass itin, string opc, string asm, string cstr,
1512 : InstARM<am, Size4Bytes, im, f, NeonDomain, cstr, itin> {
1513 let OutOperandList = oops;
1514 let InOperandList = !con(iops, (ins pred:$p));
1515 let AsmString = !strconcat(!strconcat(opc, "${p}"), !strconcat("\t", asm));
1516 let Pattern = pattern;
1517 list<Predicate> Predicates = [HasNEON];
1520 class NLdSt<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
1521 dag oops, dag iops, InstrItinClass itin,
1522 string opc, string dt, string asm, string cstr, list<dag> pattern>
1523 : NeonI<oops, iops, AddrMode6, IndexModeNone, NLdStFrm, itin, opc, dt, asm,
1525 let Inst{31-24} = 0b11110100;
1526 let Inst{23} = op23;
1527 let Inst{21-20} = op21_20;
1528 let Inst{11-8} = op11_8;
1529 let Inst{7-4} = op7_4;
1532 class NDataI<dag oops, dag iops, Format f, InstrItinClass itin,
1533 string opc, string dt, string asm, string cstr, list<dag> pattern>
1534 : NeonI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, dt, asm, cstr,
1536 let Inst{31-25} = 0b1111001;
1539 class NDataXI<dag oops, dag iops, Format f, InstrItinClass itin,
1540 string opc, string asm, string cstr, list<dag> pattern>
1541 : NeonXI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, asm,
1543 let Inst{31-25} = 0b1111001;
1546 // NEON "one register and a modified immediate" format.
1547 class N1ModImm<bit op23, bits<3> op21_19, bits<4> op11_8, bit op7, bit op6,
1549 dag oops, dag iops, InstrItinClass itin,
1550 string opc, string dt, string asm, string cstr,
1552 : NDataI<oops, iops, N1RegModImmFrm, itin, opc, dt, asm, cstr, pattern> {
1553 let Inst{23} = op23;
1554 let Inst{21-19} = op21_19;
1555 let Inst{11-8} = op11_8;
1562 // NEON 2 vector register format.
1563 class N2V<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
1564 bits<5> op11_7, bit op6, bit op4,
1565 dag oops, dag iops, InstrItinClass itin,
1566 string opc, string dt, string asm, string cstr, list<dag> pattern>
1567 : NDataI<oops, iops, N2RegFrm, itin, opc, dt, asm, cstr, pattern> {
1568 let Inst{24-23} = op24_23;
1569 let Inst{21-20} = op21_20;
1570 let Inst{19-18} = op19_18;
1571 let Inst{17-16} = op17_16;
1572 let Inst{11-7} = op11_7;
1577 // Same as N2V except it doesn't have a datatype suffix.
1578 class N2VX<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
1579 bits<5> op11_7, bit op6, bit op4,
1580 dag oops, dag iops, InstrItinClass itin,
1581 string opc, string asm, string cstr, list<dag> pattern>
1582 : NDataXI<oops, iops, N2RegFrm, itin, opc, asm, cstr, pattern> {
1583 let Inst{24-23} = op24_23;
1584 let Inst{21-20} = op21_20;
1585 let Inst{19-18} = op19_18;
1586 let Inst{17-16} = op17_16;
1587 let Inst{11-7} = op11_7;
1592 // NEON 2 vector register with immediate.
1593 class N2VImm<bit op24, bit op23, bits<4> op11_8, bit op7, bit op6, bit op4,
1594 dag oops, dag iops, Format f, InstrItinClass itin,
1595 string opc, string dt, string asm, string cstr, list<dag> pattern>
1596 : NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1597 let Inst{24} = op24;
1598 let Inst{23} = op23;
1599 let Inst{11-8} = op11_8;
1605 // NEON 3 vector register format.
1606 class N3V<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6, bit op4,
1607 dag oops, dag iops, InstrItinClass itin,
1608 string opc, string dt, string asm, string cstr, list<dag> pattern>
1609 : NDataI<oops, iops, NEONFrm, itin, opc, dt, asm, cstr, pattern> {
1610 let Inst{24} = op24;
1611 let Inst{23} = op23;
1612 let Inst{21-20} = op21_20;
1613 let Inst{11-8} = op11_8;
1618 // Same as N3V except it doesn't have a data type suffix.
1619 class N3VX<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1621 dag oops, dag iops, InstrItinClass itin,
1622 string opc, string asm, string cstr, list<dag> pattern>
1623 : NDataXI<oops, iops, NEONFrm, itin, opc, asm, cstr, pattern> {
1624 let Inst{24} = op24;
1625 let Inst{23} = op23;
1626 let Inst{21-20} = op21_20;
1627 let Inst{11-8} = op11_8;
1632 // NEON VMOVs between scalar and core registers.
1633 class NVLaneOp<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1634 dag oops, dag iops, Format f, InstrItinClass itin,
1635 string opc, string dt, string asm, list<dag> pattern>
1636 : InstARM<AddrModeNone, Size4Bytes, IndexModeNone, f, GenericDomain,
1638 let Inst{27-20} = opcod1;
1639 let Inst{11-8} = opcod2;
1640 let Inst{6-5} = opcod3;
1643 let OutOperandList = oops;
1644 let InOperandList = !con(iops, (ins pred:$p));
1645 let AsmString = !strconcat(
1646 !strconcat(!strconcat(opc, "${p}"), !strconcat(".", dt)),
1647 !strconcat("\t", asm));
1648 let Pattern = pattern;
1649 list<Predicate> Predicates = [HasNEON];
1651 class NVGetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1652 dag oops, dag iops, InstrItinClass itin,
1653 string opc, string dt, string asm, list<dag> pattern>
1654 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NEONGetLnFrm, itin,
1655 opc, dt, asm, pattern>;
1656 class NVSetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1657 dag oops, dag iops, InstrItinClass itin,
1658 string opc, string dt, string asm, list<dag> pattern>
1659 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NEONSetLnFrm, itin,
1660 opc, dt, asm, pattern>;
1661 class NVDup<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1662 dag oops, dag iops, InstrItinClass itin,
1663 string opc, string dt, string asm, list<dag> pattern>
1664 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NEONDupFrm, itin,
1665 opc, dt, asm, pattern>;
1667 // Vector Duplicate Lane (from scalar to all elements)
1668 class NVDupLane<bits<4> op19_16, bit op6, dag oops, dag iops,
1669 InstrItinClass itin, string opc, string dt, string asm,
1671 : NDataI<oops, iops, NVDupLnFrm, itin, opc, dt, asm, "", pattern> {
1672 let Inst{24-23} = 0b11;
1673 let Inst{21-20} = 0b11;
1674 let Inst{19-16} = op19_16;
1675 let Inst{11-7} = 0b11000;
1680 // NEONFPPat - Same as Pat<>, but requires that the compiler be using NEON
1681 // for single-precision FP.
1682 class NEONFPPat<dag pattern, dag result> : Pat<pattern, result> {
1683 list<Predicate> Predicates = [HasNEON,UseNEONForFP];