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>;
110 // Load / store index mode.
111 class IndexMode<bits<2> val> {
114 def IndexModeNone : IndexMode<0>;
115 def IndexModePre : IndexMode<1>;
116 def IndexModePost : IndexMode<2>;
117 def IndexModeUpd : IndexMode<3>;
119 // Instruction execution domain.
120 class Domain<bits<3> val> {
123 def GenericDomain : Domain<0>;
124 def VFPDomain : Domain<1>; // Instructions in VFP domain only
125 def NeonDomain : Domain<2>; // Instructions in Neon domain only
126 def VFPNeonDomain : Domain<3>; // Instructions in both VFP & Neon domains
127 def VFPNeonA8Domain : Domain<5>; // Instructions in VFP & Neon under A8
129 //===----------------------------------------------------------------------===//
130 // ARM special operands.
133 def CondCodeOperand : AsmOperandClass {
134 let Name = "CondCode";
135 let SuperClasses = [];
138 def CCOutOperand : AsmOperandClass {
140 let SuperClasses = [];
143 def MemBarrierOptOperand : AsmOperandClass {
144 let Name = "MemBarrierOpt";
145 let SuperClasses = [];
146 let ParserMethod = "tryParseMemBarrierOptOperand";
149 def ProcIFlagsOperand : AsmOperandClass {
150 let Name = "ProcIFlags";
151 let SuperClasses = [];
152 let ParserMethod = "tryParseProcIFlagsOperand";
155 def MSRMaskOperand : AsmOperandClass {
156 let Name = "MSRMask";
157 let SuperClasses = [];
158 let ParserMethod = "tryParseMSRMaskOperand";
161 // ARM imod and iflag operands, used only by the CPS instruction.
162 def imod_op : Operand<i32> {
163 let PrintMethod = "printCPSIMod";
166 def iflags_op : Operand<i32> {
167 let PrintMethod = "printCPSIFlag";
168 let ParserMatchClass = ProcIFlagsOperand;
171 // ARM Predicate operand. Default to 14 = always (AL). Second part is CC
172 // register whose default is 0 (no register).
173 def pred : PredicateOperand<OtherVT, (ops i32imm, CCR),
174 (ops (i32 14), (i32 zero_reg))> {
175 let PrintMethod = "printPredicateOperand";
176 let ParserMatchClass = CondCodeOperand;
179 // Conditional code result for instructions whose 's' bit is set, e.g. subs.
180 def cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 zero_reg))> {
181 let EncoderMethod = "getCCOutOpValue";
182 let PrintMethod = "printSBitModifierOperand";
183 let ParserMatchClass = CCOutOperand;
186 // Same as cc_out except it defaults to setting CPSR.
187 def s_cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 CPSR))> {
188 let EncoderMethod = "getCCOutOpValue";
189 let PrintMethod = "printSBitModifierOperand";
190 let ParserMatchClass = CCOutOperand;
193 // ARM special operands for disassembly only.
195 def setend_op : Operand<i32> {
196 let PrintMethod = "printSetendOperand";
199 def msr_mask : Operand<i32> {
200 let PrintMethod = "printMSRMaskOperand";
201 let ParserMatchClass = MSRMaskOperand;
204 // Shift Right Immediate - A shift right immediate is encoded differently from
205 // other shift immediates. The imm6 field is encoded like so:
208 // 8 imm6<5:3> = '001', 8 - <imm> is encoded in imm6<2:0>
209 // 16 imm6<5:4> = '01', 16 - <imm> is encoded in imm6<3:0>
210 // 32 imm6<5> = '1', 32 - <imm> is encoded in imm6<4:0>
211 // 64 64 - <imm> is encoded in imm6<5:0>
212 def shr_imm8 : Operand<i32> {
213 let EncoderMethod = "getShiftRight8Imm";
215 def shr_imm16 : Operand<i32> {
216 let EncoderMethod = "getShiftRight16Imm";
218 def shr_imm32 : Operand<i32> {
219 let EncoderMethod = "getShiftRight32Imm";
221 def shr_imm64 : Operand<i32> {
222 let EncoderMethod = "getShiftRight64Imm";
225 //===----------------------------------------------------------------------===//
226 // ARM Instruction templates.
229 class InstTemplate<AddrMode am, int sz, IndexMode im,
230 Format f, Domain d, string cstr, InstrItinClass itin>
232 let Namespace = "ARM";
237 bits<2> IndexModeBits = IM.Value;
239 bits<6> Form = F.Value;
241 bit isUnaryDataProc = 0;
242 bit canXformTo16Bit = 0;
244 // If this is a pseudo instruction, mark it isCodeGenOnly.
245 let isCodeGenOnly = !eq(!cast<string>(f), "Pseudo");
247 // The layout of TSFlags should be kept in sync with ARMBaseInstrInfo.h.
248 let TSFlags{4-0} = AM.Value;
249 let TSFlags{6-5} = IndexModeBits;
250 let TSFlags{12-7} = Form;
251 let TSFlags{13} = isUnaryDataProc;
252 let TSFlags{14} = canXformTo16Bit;
253 let TSFlags{17-15} = D.Value;
255 let Constraints = cstr;
256 let Itinerary = itin;
263 class InstARM<AddrMode am, int sz, IndexMode im,
264 Format f, Domain d, string cstr, InstrItinClass itin>
265 : InstTemplate<am, sz, im, f, d, cstr, itin>, Encoding {
266 let DecoderNamespace = "ARM";
269 // This Encoding-less class is used by Thumb1 to specify the encoding bits later
270 // on by adding flavors to specific instructions.
271 class InstThumb<AddrMode am, int sz, IndexMode im,
272 Format f, Domain d, string cstr, InstrItinClass itin>
273 : InstTemplate<am, sz, im, f, d, cstr, itin> {
274 let DecoderNamespace = "Thumb";
277 class PseudoInst<dag oops, dag iops, InstrItinClass itin, list<dag> pattern>
278 : InstTemplate<AddrModeNone, 0, IndexModeNone, Pseudo,
279 GenericDomain, "", itin> {
280 let OutOperandList = oops;
281 let InOperandList = iops;
282 let Pattern = pattern;
283 let isCodeGenOnly = 1;
287 // PseudoInst that's ARM-mode only.
288 class ARMPseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
290 : PseudoInst<oops, iops, itin, pattern> {
292 list<Predicate> Predicates = [IsARM];
295 // PseudoInst that's Thumb-mode only.
296 class tPseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
298 : PseudoInst<oops, iops, itin, pattern> {
300 list<Predicate> Predicates = [IsThumb];
303 // PseudoInst that's Thumb2-mode only.
304 class t2PseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
306 : PseudoInst<oops, iops, itin, pattern> {
308 list<Predicate> Predicates = [IsThumb2];
311 class ARMPseudoExpand<dag oops, dag iops, int sz,
312 InstrItinClass itin, list<dag> pattern,
314 : ARMPseudoInst<oops, iops, sz, itin, pattern>,
315 PseudoInstExpansion<Result>;
317 class tPseudoExpand<dag oops, dag iops, int sz,
318 InstrItinClass itin, list<dag> pattern,
320 : tPseudoInst<oops, iops, sz, itin, pattern>,
321 PseudoInstExpansion<Result>;
323 class t2PseudoExpand<dag oops, dag iops, int sz,
324 InstrItinClass itin, list<dag> pattern,
326 : t2PseudoInst<oops, iops, sz, itin, pattern>,
327 PseudoInstExpansion<Result>;
329 // Almost all ARM instructions are predicable.
330 class I<dag oops, dag iops, AddrMode am, int sz,
331 IndexMode im, Format f, InstrItinClass itin,
332 string opc, string asm, string cstr,
334 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
337 let OutOperandList = oops;
338 let InOperandList = !con(iops, (ins pred:$p));
339 let AsmString = !strconcat(opc, "${p}", asm);
340 let Pattern = pattern;
341 list<Predicate> Predicates = [IsARM];
344 // A few are not predicable
345 class InoP<dag oops, dag iops, AddrMode am, int sz,
346 IndexMode im, Format f, InstrItinClass itin,
347 string opc, string asm, string cstr,
349 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
350 let OutOperandList = oops;
351 let InOperandList = iops;
352 let AsmString = !strconcat(opc, asm);
353 let Pattern = pattern;
354 let isPredicable = 0;
355 list<Predicate> Predicates = [IsARM];
358 // Same as I except it can optionally modify CPSR. Note it's modeled as an input
359 // operand since by default it's a zero register. It will become an implicit def
360 // once it's "flipped".
361 class sI<dag oops, dag iops, AddrMode am, int sz,
362 IndexMode im, Format f, InstrItinClass itin,
363 string opc, string asm, string cstr,
365 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
366 bits<4> p; // Predicate operand
367 bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
371 let OutOperandList = oops;
372 let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
373 let AsmString = !strconcat(opc, "${s}${p}", asm);
374 let Pattern = pattern;
375 list<Predicate> Predicates = [IsARM];
379 class XI<dag oops, dag iops, AddrMode am, int sz,
380 IndexMode im, Format f, InstrItinClass itin,
381 string asm, string cstr, list<dag> pattern>
382 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
383 let OutOperandList = oops;
384 let InOperandList = iops;
386 let Pattern = pattern;
387 list<Predicate> Predicates = [IsARM];
390 class AI<dag oops, dag iops, Format f, InstrItinClass itin,
391 string opc, string asm, list<dag> pattern>
392 : I<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
393 opc, asm, "", pattern>;
394 class AsI<dag oops, dag iops, Format f, InstrItinClass itin,
395 string opc, string asm, list<dag> pattern>
396 : sI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
397 opc, asm, "", pattern>;
398 class AXI<dag oops, dag iops, Format f, InstrItinClass itin,
399 string asm, list<dag> pattern>
400 : XI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
402 class AInoP<dag oops, dag iops, Format f, InstrItinClass itin,
403 string opc, string asm, list<dag> pattern>
404 : InoP<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
405 opc, asm, "", pattern>;
407 // Ctrl flow instructions
408 class ABI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
409 string opc, string asm, list<dag> pattern>
410 : I<oops, iops, AddrModeNone, 4, IndexModeNone, BrFrm, itin,
411 opc, asm, "", pattern> {
412 let Inst{27-24} = opcod;
414 class ABXI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
415 string asm, list<dag> pattern>
416 : XI<oops, iops, AddrModeNone, 4, IndexModeNone, BrFrm, itin,
418 let Inst{27-24} = opcod;
421 // BR_JT instructions
422 class JTI<dag oops, dag iops, InstrItinClass itin,
423 string asm, list<dag> pattern>
424 : XI<oops, iops, AddrModeNone, 0, IndexModeNone, BrMiscFrm, itin,
427 // Atomic load/store instructions
428 class AIldrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
429 string opc, string asm, list<dag> pattern>
430 : I<oops, iops, AddrModeNone, 4, IndexModeNone, LdStExFrm, itin,
431 opc, asm, "", pattern> {
434 let Inst{27-23} = 0b00011;
435 let Inst{22-21} = opcod;
437 let Inst{19-16} = Rn;
438 let Inst{15-12} = Rt;
439 let Inst{11-0} = 0b111110011111;
441 class AIstrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
442 string opc, string asm, list<dag> pattern>
443 : I<oops, iops, AddrModeNone, 4, IndexModeNone, LdStExFrm, itin,
444 opc, asm, "", pattern> {
448 let Inst{27-23} = 0b00011;
449 let Inst{22-21} = opcod;
451 let Inst{19-16} = addr;
452 let Inst{15-12} = Rd;
453 let Inst{11-4} = 0b11111001;
456 class AIswp<bit b, dag oops, dag iops, string opc, list<dag> pattern>
457 : AI<oops, iops, MiscFrm, NoItinerary, opc, "\t$Rt, $Rt2, [$Rn]", pattern> {
461 let Inst{27-23} = 0b00010;
463 let Inst{21-20} = 0b00;
464 let Inst{19-16} = Rn;
465 let Inst{15-12} = Rt;
466 let Inst{11-4} = 0b00001001;
470 // addrmode1 instructions
471 class AI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
472 string opc, string asm, list<dag> pattern>
473 : I<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
474 opc, asm, "", pattern> {
475 let Inst{24-21} = opcod;
476 let Inst{27-26} = 0b00;
478 class AsI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
479 string opc, string asm, list<dag> pattern>
480 : sI<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
481 opc, asm, "", pattern> {
482 let Inst{24-21} = opcod;
483 let Inst{27-26} = 0b00;
485 class AXI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
486 string asm, list<dag> pattern>
487 : XI<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
489 let Inst{24-21} = opcod;
490 let Inst{27-26} = 0b00;
495 // LDR/LDRB/STR/STRB/...
496 class AI2ldst<bits<3> op, bit isLd, bit isByte, dag oops, dag iops, AddrMode am,
497 Format f, InstrItinClass itin, string opc, string asm,
499 : I<oops, iops, am, 4, IndexModeNone, f, itin, opc, asm,
501 let Inst{27-25} = op;
502 let Inst{24} = 1; // 24 == P
504 let Inst{22} = isByte;
505 let Inst{21} = 0; // 21 == W
508 // Indexed load/stores
509 class AI2ldstidx<bit isLd, bit isByte, bit isPre, dag oops, dag iops,
510 IndexMode im, Format f, InstrItinClass itin, string opc,
511 string asm, string cstr, list<dag> pattern>
512 : I<oops, iops, AddrMode2, 4, im, f, itin,
513 opc, asm, cstr, pattern> {
515 let Inst{27-26} = 0b01;
516 let Inst{24} = isPre; // P bit
517 let Inst{22} = isByte; // B bit
518 let Inst{21} = isPre; // W bit
519 let Inst{20} = isLd; // L bit
520 let Inst{15-12} = Rt;
522 class AI2stridx<bit isByte, bit isPre, dag oops, dag iops,
523 IndexMode im, Format f, InstrItinClass itin, string opc,
524 string asm, string cstr, list<dag> pattern>
525 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
527 // AM2 store w/ two operands: (GPR, am2offset)
528 // {13} 1 == Rm, 0 == imm12
533 let Inst{25} = offset{13};
534 let Inst{23} = offset{12};
535 let Inst{19-16} = Rn;
536 let Inst{11-0} = offset{11-0};
538 // FIXME: Merge with the above class when addrmode2 gets used for STR, STRB
539 // but for now use this class for STRT and STRBT.
540 class AI2stridxT<bit isByte, bit isPre, dag oops, dag iops,
541 IndexMode im, Format f, InstrItinClass itin, string opc,
542 string asm, string cstr, list<dag> pattern>
543 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
545 // AM2 store w/ two operands: (GPR, am2offset)
547 // {13} 1 == Rm, 0 == imm12
551 let Inst{25} = addr{13};
552 let Inst{23} = addr{12};
553 let Inst{19-16} = addr{17-14};
554 let Inst{11-0} = addr{11-0};
557 // addrmode3 instructions
558 class AI3ld<bits<4> op, bit op20, dag oops, dag iops, Format f,
559 InstrItinClass itin, string opc, string asm, list<dag> pattern>
560 : I<oops, iops, AddrMode3, 4, IndexModeNone, f, itin,
561 opc, asm, "", pattern> {
564 let Inst{27-25} = 0b000;
565 let Inst{24} = 1; // P bit
566 let Inst{23} = addr{8}; // U bit
567 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
568 let Inst{21} = 0; // W bit
569 let Inst{20} = op20; // L bit
570 let Inst{19-16} = addr{12-9}; // Rn
571 let Inst{15-12} = Rt; // Rt
572 let Inst{11-8} = addr{7-4}; // imm7_4/zero
574 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
577 class AI3ldstidx<bits<4> op, bit op20, bit isLd, bit isPre, dag oops, dag iops,
578 IndexMode im, Format f, InstrItinClass itin, string opc,
579 string asm, string cstr, list<dag> pattern>
580 : I<oops, iops, AddrMode3, 4, im, f, itin,
581 opc, asm, cstr, pattern> {
583 let Inst{27-25} = 0b000;
584 let Inst{24} = isPre; // P bit
585 let Inst{21} = isPre; // W bit
586 let Inst{20} = op20; // L bit
587 let Inst{15-12} = Rt; // Rt
591 // FIXME: Merge with the above class when addrmode2 gets used for LDR, LDRB
592 // but for now use this class for LDRSBT, LDRHT, LDSHT.
593 class AI3ldstidxT<bits<4> op, bit op20, bit isLd, bit isPre, dag oops, dag iops,
594 IndexMode im, Format f, InstrItinClass itin, string opc,
595 string asm, string cstr, list<dag> pattern>
596 : I<oops, iops, AddrMode3, 4, im, f, itin,
597 opc, asm, cstr, pattern> {
598 // {13} 1 == imm8, 0 == Rm
605 let Inst{27-25} = 0b000;
606 let Inst{24} = isPre; // P bit
607 let Inst{23} = addr{8}; // U bit
608 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
609 let Inst{20} = op20; // L bit
610 let Inst{19-16} = addr{12-9}; // Rn
611 let Inst{15-12} = Rt; // Rt
612 let Inst{11-8} = addr{7-4}; // imm7_4/zero
614 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
615 let AsmMatchConverter = "CvtLdWriteBackRegAddrMode3";
618 class AI3stridx<bits<4> op, bit isByte, bit isPre, dag oops, dag iops,
619 IndexMode im, Format f, InstrItinClass itin, string opc,
620 string asm, string cstr, list<dag> pattern>
621 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
623 // AM3 store w/ two operands: (GPR, am3offset)
627 let Inst{27-25} = 0b000;
628 let Inst{23} = offset{8};
629 let Inst{22} = offset{9};
630 let Inst{19-16} = Rn;
631 let Inst{15-12} = Rt; // Rt
632 let Inst{11-8} = offset{7-4}; // imm7_4/zero
634 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
638 class AI3str<bits<4> op, dag oops, dag iops, Format f, InstrItinClass itin,
639 string opc, string asm, list<dag> pattern>
640 : I<oops, iops, AddrMode3, 4, IndexModeNone, f, itin,
641 opc, asm, "", pattern> {
644 let Inst{27-25} = 0b000;
645 let Inst{24} = 1; // P bit
646 let Inst{23} = addr{8}; // U bit
647 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
648 let Inst{21} = 0; // W bit
649 let Inst{20} = 0; // L bit
650 let Inst{19-16} = addr{12-9}; // Rn
651 let Inst{15-12} = Rt; // Rt
652 let Inst{11-8} = addr{7-4}; // imm7_4/zero
654 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
657 // Pre-indexed stores
658 class AI3sthpr<dag oops, dag iops, Format f, InstrItinClass itin,
659 string opc, string asm, string cstr, list<dag> pattern>
660 : I<oops, iops, AddrMode3, 4, IndexModePre, f, itin,
661 opc, asm, cstr, 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} = 1; // W bit
668 let Inst{24} = 1; // P bit
669 let Inst{27-25} = 0b000;
671 class AI3stdpr<dag oops, dag iops, Format f, InstrItinClass itin,
672 string opc, string asm, string cstr, list<dag> pattern>
673 : I<oops, iops, AddrMode3, 4, IndexModePre, f, itin,
674 opc, asm, cstr, pattern> {
676 let Inst{5} = 1; // H bit
677 let Inst{6} = 1; // S bit
679 let Inst{20} = 0; // L bit
680 let Inst{21} = 1; // W bit
681 let Inst{24} = 1; // P bit
682 let Inst{27-25} = 0b000;
685 // Post-indexed stores
686 class AI3sthpo<dag oops, dag iops, Format f, InstrItinClass itin,
687 string opc, string asm, string cstr, list<dag> pattern>
688 : I<oops, iops, AddrMode3, 4, IndexModePost, f, itin,
689 opc, asm, cstr,pattern> {
690 // {13} 1 == imm8, 0 == Rm
697 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
699 let Inst{5} = 1; // H bit
700 let Inst{6} = 0; // S bit
702 let Inst{11-8} = addr{7-4}; // imm7_4/zero
703 let Inst{15-12} = Rt; // Rt
704 let Inst{19-16} = addr{12-9}; // Rn
705 let Inst{20} = 0; // L bit
706 let Inst{21} = 0; // W bit
707 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
708 let Inst{23} = addr{8}; // U bit
709 let Inst{24} = 0; // P bit
710 let Inst{27-25} = 0b000;
712 class AI3stdpo<dag oops, dag iops, Format f, InstrItinClass itin,
713 string opc, string asm, string cstr, list<dag> pattern>
714 : I<oops, iops, AddrMode3, 4, IndexModePost, f, itin,
715 opc, asm, cstr, pattern> {
717 let Inst{5} = 1; // H bit
718 let Inst{6} = 1; // S bit
720 let Inst{20} = 0; // L bit
721 let Inst{21} = 0; // W bit
722 let Inst{24} = 0; // P bit
723 let Inst{27-25} = 0b000;
726 // addrmode4 instructions
727 class AXI4<dag oops, dag iops, IndexMode im, Format f, InstrItinClass itin,
728 string asm, string cstr, list<dag> pattern>
729 : XI<oops, iops, AddrMode4, 4, im, f, itin, asm, cstr, pattern> {
734 let Inst{27-25} = 0b100;
735 let Inst{22} = 0; // S bit
736 let Inst{19-16} = Rn;
737 let Inst{15-0} = regs;
740 // Unsigned multiply, multiply-accumulate instructions.
741 class AMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
742 string opc, string asm, list<dag> pattern>
743 : I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
744 opc, asm, "", pattern> {
745 let Inst{7-4} = 0b1001;
746 let Inst{20} = 0; // S bit
747 let Inst{27-21} = opcod;
749 class AsMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
750 string opc, string asm, list<dag> pattern>
751 : sI<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
752 opc, asm, "", pattern> {
753 let Inst{7-4} = 0b1001;
754 let Inst{27-21} = opcod;
757 // Most significant word multiply
758 class AMul2I<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
759 InstrItinClass itin, string opc, string asm, list<dag> pattern>
760 : I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
761 opc, asm, "", pattern> {
765 let Inst{7-4} = opc7_4;
767 let Inst{27-21} = opcod;
768 let Inst{19-16} = Rd;
772 // MSW multiple w/ Ra operand
773 class AMul2Ia<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
774 InstrItinClass itin, string opc, string asm, list<dag> pattern>
775 : AMul2I<opcod, opc7_4, oops, iops, itin, opc, asm, pattern> {
777 let Inst{15-12} = Ra;
780 // SMUL<x><y> / SMULW<y> / SMLA<x><y> / SMLAW<x><y>
781 class AMulxyIbase<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
782 InstrItinClass itin, string opc, string asm, list<dag> pattern>
783 : I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
784 opc, asm, "", pattern> {
790 let Inst{27-21} = opcod;
791 let Inst{6-5} = bit6_5;
795 class AMulxyI<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
796 InstrItinClass itin, string opc, string asm, list<dag> pattern>
797 : AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
799 let Inst{19-16} = Rd;
802 // AMulxyI with Ra operand
803 class AMulxyIa<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
804 InstrItinClass itin, string opc, string asm, list<dag> pattern>
805 : AMulxyI<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
807 let Inst{15-12} = Ra;
810 class AMulxyI64<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
811 InstrItinClass itin, string opc, string asm, list<dag> pattern>
812 : AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
815 let Inst{19-16} = RdHi;
816 let Inst{15-12} = RdLo;
819 // Extend instructions.
820 class AExtI<bits<8> opcod, dag oops, dag iops, InstrItinClass itin,
821 string opc, string asm, list<dag> pattern>
822 : I<oops, iops, AddrModeNone, 4, IndexModeNone, ExtFrm, itin,
823 opc, asm, "", pattern> {
824 // All AExtI instructions have Rd and Rm register operands.
827 let Inst{15-12} = Rd;
829 let Inst{7-4} = 0b0111;
830 let Inst{9-8} = 0b00;
831 let Inst{27-20} = opcod;
834 // Misc Arithmetic instructions.
835 class AMiscA1I<bits<8> opcod, bits<4> opc7_4, dag oops, dag iops,
836 InstrItinClass itin, string opc, string asm, list<dag> pattern>
837 : I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
838 opc, asm, "", pattern> {
841 let Inst{27-20} = opcod;
842 let Inst{19-16} = 0b1111;
843 let Inst{15-12} = Rd;
844 let Inst{11-8} = 0b1111;
845 let Inst{7-4} = opc7_4;
850 def pkh_lsl_amt : ImmLeaf<i32, [{ return Imm >= 0 && Imm < 32; }]>;
851 def pkh_asr_amt : ImmLeaf<i32, [{ return Imm > 0 && Imm <= 32; }]>;
853 class APKHI<bits<8> opcod, bit tb, dag oops, dag iops, InstrItinClass itin,
854 string opc, string asm, list<dag> pattern>
855 : I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
856 opc, asm, "", pattern> {
861 let Inst{27-20} = opcod;
862 let Inst{19-16} = Rn;
863 let Inst{15-12} = Rd;
866 let Inst{5-4} = 0b01;
870 //===----------------------------------------------------------------------===//
872 // ARMPat - Same as Pat<>, but requires that the compiler be in ARM mode.
873 class ARMPat<dag pattern, dag result> : Pat<pattern, result> {
874 list<Predicate> Predicates = [IsARM];
876 class ARMV5TPat<dag pattern, dag result> : Pat<pattern, result> {
877 list<Predicate> Predicates = [IsARM, HasV5T];
879 class ARMV5TEPat<dag pattern, dag result> : Pat<pattern, result> {
880 list<Predicate> Predicates = [IsARM, HasV5TE];
882 class ARMV6Pat<dag pattern, dag result> : Pat<pattern, result> {
883 list<Predicate> Predicates = [IsARM, HasV6];
886 //===----------------------------------------------------------------------===//
887 // Thumb Instruction Format Definitions.
890 class ThumbI<dag oops, dag iops, AddrMode am, int sz,
891 InstrItinClass itin, string asm, string cstr, list<dag> pattern>
892 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
893 let OutOperandList = oops;
894 let InOperandList = iops;
896 let Pattern = pattern;
897 list<Predicate> Predicates = [IsThumb];
900 // TI - Thumb instruction.
901 class TI<dag oops, dag iops, InstrItinClass itin, string asm, list<dag> pattern>
902 : ThumbI<oops, iops, AddrModeNone, 2, itin, asm, "", pattern>;
904 // Two-address instructions
905 class TIt<dag oops, dag iops, InstrItinClass itin, string asm,
907 : ThumbI<oops, iops, AddrModeNone, 2, itin, asm, "$lhs = $dst",
910 // tBL, tBX 32-bit instructions
911 class TIx2<bits<5> opcod1, bits<2> opcod2, bit opcod3,
912 dag oops, dag iops, InstrItinClass itin, string asm,
914 : ThumbI<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>,
916 let Inst{31-27} = opcod1;
917 let Inst{15-14} = opcod2;
918 let Inst{12} = opcod3;
921 // BR_JT instructions
922 class TJTI<dag oops, dag iops, InstrItinClass itin, string asm,
924 : ThumbI<oops, iops, AddrModeNone, 0, itin, asm, "", pattern>;
927 class Thumb1I<dag oops, dag iops, AddrMode am, int sz,
928 InstrItinClass itin, string asm, string cstr, list<dag> pattern>
929 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
930 let OutOperandList = oops;
931 let InOperandList = iops;
933 let Pattern = pattern;
934 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
937 class T1I<dag oops, dag iops, InstrItinClass itin,
938 string asm, list<dag> pattern>
939 : Thumb1I<oops, iops, AddrModeNone, 2, itin, asm, "", pattern>;
940 class T1Ix2<dag oops, dag iops, InstrItinClass itin,
941 string asm, list<dag> pattern>
942 : Thumb1I<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>;
944 // Two-address instructions
945 class T1It<dag oops, dag iops, InstrItinClass itin,
946 string asm, string cstr, list<dag> pattern>
947 : Thumb1I<oops, iops, AddrModeNone, 2, itin,
950 // Thumb1 instruction that can either be predicated or set CPSR.
951 class Thumb1sI<dag oops, dag iops, AddrMode am, int sz,
953 string opc, string asm, string cstr, list<dag> pattern>
954 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
955 let OutOperandList = !con(oops, (outs s_cc_out:$s));
956 let InOperandList = !con(iops, (ins pred:$p));
957 let AsmString = !strconcat(opc, "${s}${p}", asm);
958 let Pattern = pattern;
959 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
962 class T1sI<dag oops, dag iops, InstrItinClass itin,
963 string opc, string asm, list<dag> pattern>
964 : Thumb1sI<oops, iops, AddrModeNone, 2, itin, opc, asm, "", pattern>;
966 // Two-address instructions
967 class T1sIt<dag oops, dag iops, InstrItinClass itin,
968 string opc, string asm, list<dag> pattern>
969 : Thumb1sI<oops, iops, AddrModeNone, 2, itin, opc, asm,
970 "$Rn = $Rdn", pattern>;
972 // Thumb1 instruction that can be predicated.
973 class Thumb1pI<dag oops, dag iops, AddrMode am, int sz,
975 string opc, string asm, string cstr, list<dag> pattern>
976 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
977 let OutOperandList = oops;
978 let InOperandList = !con(iops, (ins pred:$p));
979 let AsmString = !strconcat(opc, "${p}", asm);
980 let Pattern = pattern;
981 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
984 class T1pI<dag oops, dag iops, InstrItinClass itin,
985 string opc, string asm, list<dag> pattern>
986 : Thumb1pI<oops, iops, AddrModeNone, 2, itin, opc, asm, "", pattern>;
988 // Two-address instructions
989 class T1pIt<dag oops, dag iops, InstrItinClass itin,
990 string opc, string asm, list<dag> pattern>
991 : Thumb1pI<oops, iops, AddrModeNone, 2, itin, opc, asm,
992 "$Rn = $Rdn", pattern>;
994 class T1pIs<dag oops, dag iops,
995 InstrItinClass itin, string opc, string asm, list<dag> pattern>
996 : Thumb1pI<oops, iops, AddrModeT1_s, 2, itin, opc, asm, "", pattern>;
998 class Encoding16 : Encoding {
999 let Inst{31-16} = 0x0000;
1002 // A6.2 16-bit Thumb instruction encoding
1003 class T1Encoding<bits<6> opcode> : Encoding16 {
1004 let Inst{15-10} = opcode;
1007 // A6.2.1 Shift (immediate), add, subtract, move, and compare encoding.
1008 class T1General<bits<5> opcode> : Encoding16 {
1009 let Inst{15-14} = 0b00;
1010 let Inst{13-9} = opcode;
1013 // A6.2.2 Data-processing encoding.
1014 class T1DataProcessing<bits<4> opcode> : Encoding16 {
1015 let Inst{15-10} = 0b010000;
1016 let Inst{9-6} = opcode;
1019 // A6.2.3 Special data instructions and branch and exchange encoding.
1020 class T1Special<bits<4> opcode> : Encoding16 {
1021 let Inst{15-10} = 0b010001;
1022 let Inst{9-6} = opcode;
1025 // A6.2.4 Load/store single data item encoding.
1026 class T1LoadStore<bits<4> opA, bits<3> opB> : Encoding16 {
1027 let Inst{15-12} = opA;
1028 let Inst{11-9} = opB;
1030 class T1LdStSP<bits<3> opB> : T1LoadStore<0b1001, opB>; // SP relative
1032 class T1BranchCond<bits<4> opcode> : Encoding16 {
1033 let Inst{15-12} = opcode;
1036 // Helper classes to encode Thumb1 loads and stores. For immediates, the
1037 // following bits are used for "opA" (see A6.2.4):
1039 // 0b0110 => Immediate, 4 bytes
1040 // 0b1000 => Immediate, 2 bytes
1041 // 0b0111 => Immediate, 1 byte
1042 class T1pILdStEncode<bits<3> opcode, dag oops, dag iops, AddrMode am,
1043 InstrItinClass itin, string opc, string asm,
1045 : Thumb1pI<oops, iops, am, 2, itin, opc, asm, "", pattern>,
1046 T1LoadStore<0b0101, opcode> {
1049 let Inst{8-6} = addr{5-3}; // Rm
1050 let Inst{5-3} = addr{2-0}; // Rn
1053 class T1pILdStEncodeImm<bits<4> opA, bit opB, dag oops, dag iops, AddrMode am,
1054 InstrItinClass itin, string opc, string asm,
1056 : Thumb1pI<oops, iops, am, 2, itin, opc, asm, "", pattern>,
1057 T1LoadStore<opA, {opB,?,?}> {
1060 let Inst{10-6} = addr{7-3}; // imm5
1061 let Inst{5-3} = addr{2-0}; // Rn
1065 // A6.2.5 Miscellaneous 16-bit instructions encoding.
1066 class T1Misc<bits<7> opcode> : Encoding16 {
1067 let Inst{15-12} = 0b1011;
1068 let Inst{11-5} = opcode;
1071 // Thumb2I - Thumb2 instruction. Almost all Thumb2 instructions are predicable.
1072 class Thumb2I<dag oops, dag iops, AddrMode am, int sz,
1073 InstrItinClass itin,
1074 string opc, string asm, string cstr, list<dag> pattern>
1075 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1076 let OutOperandList = oops;
1077 let InOperandList = !con(iops, (ins pred:$p));
1078 let AsmString = !strconcat(opc, "${p}", asm);
1079 let Pattern = pattern;
1080 list<Predicate> Predicates = [IsThumb2];
1081 let DecoderNamespace = "Thumb2";
1084 // Same as Thumb2I except it can optionally modify CPSR. Note it's modeled as an
1085 // input operand since by default it's a zero register. It will become an
1086 // implicit def once it's "flipped".
1088 // FIXME: This uses unified syntax so {s} comes before {p}. We should make it
1090 class Thumb2sI<dag oops, dag iops, AddrMode am, int sz,
1091 InstrItinClass itin,
1092 string opc, string asm, string cstr, list<dag> pattern>
1093 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1094 bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
1097 let OutOperandList = oops;
1098 let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
1099 let AsmString = !strconcat(opc, "${s}${p}", asm);
1100 let Pattern = pattern;
1101 list<Predicate> Predicates = [IsThumb2];
1102 let DecoderNamespace = "Thumb2";
1106 class Thumb2XI<dag oops, dag iops, AddrMode am, int sz,
1107 InstrItinClass itin,
1108 string asm, string cstr, list<dag> pattern>
1109 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1110 let OutOperandList = oops;
1111 let InOperandList = iops;
1112 let AsmString = asm;
1113 let Pattern = pattern;
1114 list<Predicate> Predicates = [IsThumb2];
1115 let DecoderNamespace = "Thumb2";
1118 class ThumbXI<dag oops, dag iops, AddrMode am, int sz,
1119 InstrItinClass itin,
1120 string asm, string cstr, list<dag> pattern>
1121 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1122 let OutOperandList = oops;
1123 let InOperandList = iops;
1124 let AsmString = asm;
1125 let Pattern = pattern;
1126 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
1127 let DecoderNamespace = "Thumb";
1130 class T2I<dag oops, dag iops, InstrItinClass itin,
1131 string opc, string asm, list<dag> pattern>
1132 : Thumb2I<oops, iops, AddrModeNone, 4, itin, opc, asm, "", pattern>;
1133 class T2Ii12<dag oops, dag iops, InstrItinClass itin,
1134 string opc, string asm, list<dag> pattern>
1135 : Thumb2I<oops, iops, AddrModeT2_i12, 4, itin, opc, asm, "",pattern>;
1136 class T2Ii8<dag oops, dag iops, InstrItinClass itin,
1137 string opc, string asm, list<dag> pattern>
1138 : Thumb2I<oops, iops, AddrModeT2_i8, 4, itin, opc, asm, "", pattern>;
1139 class T2Iso<dag oops, dag iops, InstrItinClass itin,
1140 string opc, string asm, list<dag> pattern>
1141 : Thumb2I<oops, iops, AddrModeT2_so, 4, itin, opc, asm, "", pattern>;
1142 class T2Ipc<dag oops, dag iops, InstrItinClass itin,
1143 string opc, string asm, list<dag> pattern>
1144 : Thumb2I<oops, iops, AddrModeT2_pc, 4, itin, opc, asm, "", pattern>;
1145 class T2Ii8s4<bit P, bit W, bit isLoad, dag oops, dag iops, InstrItinClass itin,
1146 string opc, string asm, list<dag> pattern>
1147 : Thumb2I<oops, iops, AddrModeT2_i8s4, 4, itin, opc, asm, "",
1152 let Inst{31-25} = 0b1110100;
1154 let Inst{23} = addr{8};
1157 let Inst{20} = isLoad;
1158 let Inst{19-16} = addr{12-9};
1159 let Inst{15-12} = Rt{3-0};
1160 let Inst{11-8} = Rt2{3-0};
1161 let Inst{7-0} = addr{7-0};
1164 class T2sI<dag oops, dag iops, InstrItinClass itin,
1165 string opc, string asm, list<dag> pattern>
1166 : Thumb2sI<oops, iops, AddrModeNone, 4, itin, opc, asm, "", pattern>;
1168 class T2XI<dag oops, dag iops, InstrItinClass itin,
1169 string asm, list<dag> pattern>
1170 : Thumb2XI<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>;
1171 class T2JTI<dag oops, dag iops, InstrItinClass itin,
1172 string asm, list<dag> pattern>
1173 : Thumb2XI<oops, iops, AddrModeNone, 0, itin, asm, "", pattern>;
1175 // Move to/from coprocessor instructions
1176 class T2Cop<bits<4> opc, dag oops, dag iops, string asm, list<dag> pattern>
1177 : T2XI <oops, iops, NoItinerary, asm, pattern>, Requires<[IsThumb2]> {
1178 let Inst{31-28} = opc;
1181 // Two-address instructions
1182 class T2XIt<dag oops, dag iops, InstrItinClass itin,
1183 string asm, string cstr, list<dag> pattern>
1184 : Thumb2XI<oops, iops, AddrModeNone, 4, itin, asm, cstr, pattern>;
1186 // T2Iidxldst - Thumb2 indexed load / store instructions.
1187 class T2Iidxldst<bit signed, bits<2> opcod, bit load, bit pre,
1189 AddrMode am, IndexMode im, InstrItinClass itin,
1190 string opc, string asm, string cstr, list<dag> pattern>
1191 : InstARM<am, 4, im, ThumbFrm, GenericDomain, cstr, itin> {
1192 let OutOperandList = oops;
1193 let InOperandList = !con(iops, (ins pred:$p));
1194 let AsmString = !strconcat(opc, "${p}", asm);
1195 let Pattern = pattern;
1196 list<Predicate> Predicates = [IsThumb2];
1197 let DecoderNamespace = "Thumb2";
1198 let Inst{31-27} = 0b11111;
1199 let Inst{26-25} = 0b00;
1200 let Inst{24} = signed;
1202 let Inst{22-21} = opcod;
1203 let Inst{20} = load;
1205 // (P, W) = (1, 1) Pre-indexed or (0, 1) Post-indexed
1206 let Inst{10} = pre; // The P bit.
1207 let Inst{8} = 1; // The W bit.
1210 let Inst{7-0} = addr{7-0};
1211 let Inst{9} = addr{8}; // Sign bit
1215 let Inst{15-12} = Rt{3-0};
1216 let Inst{19-16} = Rn{3-0};
1219 // Tv5Pat - Same as Pat<>, but requires V5T Thumb mode.
1220 class Tv5Pat<dag pattern, dag result> : Pat<pattern, result> {
1221 list<Predicate> Predicates = [IsThumb, IsThumb1Only, HasV5T];
1224 // T1Pat - Same as Pat<>, but requires that the compiler be in Thumb1 mode.
1225 class T1Pat<dag pattern, dag result> : Pat<pattern, result> {
1226 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
1229 // T2v6Pat - Same as Pat<>, but requires V6T2 Thumb2 mode.
1230 class T2v6Pat<dag pattern, dag result> : Pat<pattern, result> {
1231 list<Predicate> Predicates = [IsThumb2, HasV6T2];
1234 // T2Pat - Same as Pat<>, but requires that the compiler be in Thumb2 mode.
1235 class T2Pat<dag pattern, dag result> : Pat<pattern, result> {
1236 list<Predicate> Predicates = [IsThumb2];
1239 //===----------------------------------------------------------------------===//
1241 //===----------------------------------------------------------------------===//
1242 // ARM VFP Instruction templates.
1245 // Almost all VFP instructions are predicable.
1246 class VFPI<dag oops, dag iops, AddrMode am, int sz,
1247 IndexMode im, Format f, InstrItinClass itin,
1248 string opc, string asm, string cstr, list<dag> pattern>
1249 : InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
1251 let Inst{31-28} = p;
1252 let OutOperandList = oops;
1253 let InOperandList = !con(iops, (ins pred:$p));
1254 let AsmString = !strconcat(opc, "${p}", asm);
1255 let Pattern = pattern;
1256 let PostEncoderMethod = "VFPThumb2PostEncoder";
1257 list<Predicate> Predicates = [HasVFP2];
1261 class VFPXI<dag oops, dag iops, AddrMode am, int sz,
1262 IndexMode im, Format f, InstrItinClass itin,
1263 string asm, string cstr, list<dag> pattern>
1264 : InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
1266 let Inst{31-28} = p;
1267 let OutOperandList = oops;
1268 let InOperandList = iops;
1269 let AsmString = asm;
1270 let Pattern = pattern;
1271 let PostEncoderMethod = "VFPThumb2PostEncoder";
1272 list<Predicate> Predicates = [HasVFP2];
1275 class VFPAI<dag oops, dag iops, Format f, InstrItinClass itin,
1276 string opc, string asm, list<dag> pattern>
1277 : VFPI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
1278 opc, asm, "", pattern> {
1279 let PostEncoderMethod = "VFPThumb2PostEncoder";
1282 // ARM VFP addrmode5 loads and stores
1283 class ADI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
1284 InstrItinClass itin,
1285 string opc, string asm, list<dag> pattern>
1286 : VFPI<oops, iops, AddrMode5, 4, IndexModeNone,
1287 VFPLdStFrm, itin, opc, asm, "", pattern> {
1288 // Instruction operands.
1292 // Encode instruction operands.
1293 let Inst{23} = addr{8}; // U (add = (U == '1'))
1294 let Inst{22} = Dd{4};
1295 let Inst{19-16} = addr{12-9}; // Rn
1296 let Inst{15-12} = Dd{3-0};
1297 let Inst{7-0} = addr{7-0}; // imm8
1299 // TODO: Mark the instructions with the appropriate subtarget info.
1300 let Inst{27-24} = opcod1;
1301 let Inst{21-20} = opcod2;
1302 let Inst{11-9} = 0b101;
1303 let Inst{8} = 1; // Double precision
1305 // Loads & stores operate on both NEON and VFP pipelines.
1306 let D = VFPNeonDomain;
1309 class ASI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
1310 InstrItinClass itin,
1311 string opc, string asm, list<dag> pattern>
1312 : VFPI<oops, iops, AddrMode5, 4, IndexModeNone,
1313 VFPLdStFrm, itin, opc, asm, "", pattern> {
1314 // Instruction operands.
1318 // Encode instruction operands.
1319 let Inst{23} = addr{8}; // U (add = (U == '1'))
1320 let Inst{22} = Sd{0};
1321 let Inst{19-16} = addr{12-9}; // Rn
1322 let Inst{15-12} = Sd{4-1};
1323 let Inst{7-0} = addr{7-0}; // imm8
1325 // TODO: Mark the instructions with the appropriate subtarget info.
1326 let Inst{27-24} = opcod1;
1327 let Inst{21-20} = opcod2;
1328 let Inst{11-9} = 0b101;
1329 let Inst{8} = 0; // Single precision
1331 // Loads & stores operate on both NEON and VFP pipelines.
1332 let D = VFPNeonDomain;
1335 // VFP Load / store multiple pseudo instructions.
1336 class PseudoVFPLdStM<dag oops, dag iops, InstrItinClass itin, string cstr,
1338 : InstARM<AddrMode4, 4, IndexModeNone, Pseudo, VFPNeonDomain,
1340 let OutOperandList = oops;
1341 let InOperandList = !con(iops, (ins pred:$p));
1342 let Pattern = pattern;
1343 list<Predicate> Predicates = [HasVFP2];
1346 // Load / store multiple
1347 class AXDI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
1348 string asm, string cstr, list<dag> pattern>
1349 : VFPXI<oops, iops, AddrMode4, 4, im,
1350 VFPLdStMulFrm, itin, asm, cstr, pattern> {
1351 // Instruction operands.
1355 // Encode instruction operands.
1356 let Inst{19-16} = Rn;
1357 let Inst{22} = regs{12};
1358 let Inst{15-12} = regs{11-8};
1359 let Inst{7-0} = regs{7-0};
1361 // TODO: Mark the instructions with the appropriate subtarget info.
1362 let Inst{27-25} = 0b110;
1363 let Inst{11-9} = 0b101;
1364 let Inst{8} = 1; // Double precision
1367 class AXSI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
1368 string asm, string cstr, list<dag> pattern>
1369 : VFPXI<oops, iops, AddrMode4, 4, im,
1370 VFPLdStMulFrm, itin, asm, cstr, pattern> {
1371 // Instruction operands.
1375 // Encode instruction operands.
1376 let Inst{19-16} = Rn;
1377 let Inst{22} = regs{8};
1378 let Inst{15-12} = regs{12-9};
1379 let Inst{7-0} = regs{7-0};
1381 // TODO: Mark the instructions with the appropriate subtarget info.
1382 let Inst{27-25} = 0b110;
1383 let Inst{11-9} = 0b101;
1384 let Inst{8} = 0; // Single precision
1387 // Double precision, unary
1388 class ADuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1389 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1390 string asm, list<dag> pattern>
1391 : VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
1392 // Instruction operands.
1396 // Encode instruction operands.
1397 let Inst{3-0} = Dm{3-0};
1398 let Inst{5} = Dm{4};
1399 let Inst{15-12} = Dd{3-0};
1400 let Inst{22} = Dd{4};
1402 let Inst{27-23} = opcod1;
1403 let Inst{21-20} = opcod2;
1404 let Inst{19-16} = opcod3;
1405 let Inst{11-9} = 0b101;
1406 let Inst{8} = 1; // Double precision
1407 let Inst{7-6} = opcod4;
1408 let Inst{4} = opcod5;
1411 // Double precision, binary
1412 class ADbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1413 dag iops, InstrItinClass itin, string opc, string asm,
1415 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1416 // Instruction operands.
1421 // Encode instruction operands.
1422 let Inst{3-0} = Dm{3-0};
1423 let Inst{5} = Dm{4};
1424 let Inst{19-16} = Dn{3-0};
1425 let Inst{7} = Dn{4};
1426 let Inst{15-12} = Dd{3-0};
1427 let Inst{22} = Dd{4};
1429 let Inst{27-23} = opcod1;
1430 let Inst{21-20} = opcod2;
1431 let Inst{11-9} = 0b101;
1432 let Inst{8} = 1; // Double precision
1437 // Single precision, unary
1438 class ASuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1439 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1440 string asm, list<dag> pattern>
1441 : VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
1442 // Instruction operands.
1446 // Encode instruction operands.
1447 let Inst{3-0} = Sm{4-1};
1448 let Inst{5} = Sm{0};
1449 let Inst{15-12} = Sd{4-1};
1450 let Inst{22} = Sd{0};
1452 let Inst{27-23} = opcod1;
1453 let Inst{21-20} = opcod2;
1454 let Inst{19-16} = opcod3;
1455 let Inst{11-9} = 0b101;
1456 let Inst{8} = 0; // Single precision
1457 let Inst{7-6} = opcod4;
1458 let Inst{4} = opcod5;
1461 // Single precision unary, if no NEON. Same as ASuI except not available if
1463 class ASuIn<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1464 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1465 string asm, list<dag> pattern>
1466 : ASuI<opcod1, opcod2, opcod3, opcod4, opcod5, oops, iops, itin, opc, asm,
1468 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1471 // Single precision, binary
1472 class ASbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops, dag iops,
1473 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1474 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1475 // Instruction operands.
1480 // Encode instruction operands.
1481 let Inst{3-0} = Sm{4-1};
1482 let Inst{5} = Sm{0};
1483 let Inst{19-16} = Sn{4-1};
1484 let Inst{7} = Sn{0};
1485 let Inst{15-12} = Sd{4-1};
1486 let Inst{22} = Sd{0};
1488 let Inst{27-23} = opcod1;
1489 let Inst{21-20} = opcod2;
1490 let Inst{11-9} = 0b101;
1491 let Inst{8} = 0; // Single precision
1496 // Single precision binary, if no NEON. Same as ASbI except not available if
1498 class ASbIn<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1499 dag iops, InstrItinClass itin, string opc, string asm,
1501 : ASbI<opcod1, opcod2, op6, op4, oops, iops, itin, opc, asm, pattern> {
1502 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1504 // Instruction operands.
1509 // Encode instruction operands.
1510 let Inst{3-0} = Sm{4-1};
1511 let Inst{5} = Sm{0};
1512 let Inst{19-16} = Sn{4-1};
1513 let Inst{7} = Sn{0};
1514 let Inst{15-12} = Sd{4-1};
1515 let Inst{22} = Sd{0};
1518 // VFP conversion instructions
1519 class AVConv1I<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
1520 dag oops, dag iops, InstrItinClass itin, string opc, string asm,
1522 : VFPAI<oops, iops, VFPConv1Frm, itin, opc, asm, pattern> {
1523 let Inst{27-23} = opcod1;
1524 let Inst{21-20} = opcod2;
1525 let Inst{19-16} = opcod3;
1526 let Inst{11-8} = opcod4;
1531 // VFP conversion between floating-point and fixed-point
1532 class AVConv1XI<bits<5> op1, bits<2> op2, bits<4> op3, bits<4> op4, bit op5,
1533 dag oops, dag iops, InstrItinClass itin, string opc, string asm,
1535 : AVConv1I<op1, op2, op3, op4, oops, iops, itin, opc, asm, pattern> {
1536 // size (fixed-point number): sx == 0 ? 16 : 32
1537 let Inst{7} = op5; // sx
1540 // VFP conversion instructions, if no NEON
1541 class AVConv1In<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
1542 dag oops, dag iops, InstrItinClass itin,
1543 string opc, string asm, list<dag> pattern>
1544 : AVConv1I<opcod1, opcod2, opcod3, opcod4, oops, iops, itin, opc, asm,
1546 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1549 class AVConvXI<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops, Format f,
1550 InstrItinClass itin,
1551 string opc, string asm, list<dag> pattern>
1552 : VFPAI<oops, iops, f, itin, opc, asm, pattern> {
1553 let Inst{27-20} = opcod1;
1554 let Inst{11-8} = opcod2;
1558 class AVConv2I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1559 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1560 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv2Frm, itin, opc, asm, pattern>;
1562 class AVConv3I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1563 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1564 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv3Frm, itin, opc, asm, pattern>;
1566 class AVConv4I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1567 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1568 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv4Frm, itin, opc, asm, pattern>;
1570 class AVConv5I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1571 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1572 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv5Frm, itin, opc, asm, pattern>;
1574 //===----------------------------------------------------------------------===//
1576 //===----------------------------------------------------------------------===//
1577 // ARM NEON Instruction templates.
1580 class NeonI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
1581 InstrItinClass itin, string opc, string dt, string asm, string cstr,
1583 : InstARM<am, 4, im, f, NeonDomain, cstr, itin> {
1584 let OutOperandList = oops;
1585 let InOperandList = !con(iops, (ins pred:$p));
1586 let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
1587 let Pattern = pattern;
1588 list<Predicate> Predicates = [HasNEON];
1591 // Same as NeonI except it does not have a "data type" specifier.
1592 class NeonXI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
1593 InstrItinClass itin, string opc, string asm, string cstr,
1595 : InstARM<am, 4, im, f, NeonDomain, cstr, itin> {
1596 let OutOperandList = oops;
1597 let InOperandList = !con(iops, (ins pred:$p));
1598 let AsmString = !strconcat(opc, "${p}", "\t", asm);
1599 let Pattern = pattern;
1600 list<Predicate> Predicates = [HasNEON];
1603 class NLdSt<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
1604 dag oops, dag iops, InstrItinClass itin,
1605 string opc, string dt, string asm, string cstr, list<dag> pattern>
1606 : NeonI<oops, iops, AddrMode6, IndexModeNone, NLdStFrm, itin, opc, dt, asm,
1608 let Inst{31-24} = 0b11110100;
1609 let Inst{23} = op23;
1610 let Inst{21-20} = op21_20;
1611 let Inst{11-8} = op11_8;
1612 let Inst{7-4} = op7_4;
1614 let PostEncoderMethod = "NEONThumb2LoadStorePostEncoder";
1620 let Inst{22} = Vd{4};
1621 let Inst{15-12} = Vd{3-0};
1622 let Inst{19-16} = Rn{3-0};
1623 let Inst{3-0} = Rm{3-0};
1626 class NLdStLn<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
1627 dag oops, dag iops, InstrItinClass itin,
1628 string opc, string dt, string asm, string cstr, list<dag> pattern>
1629 : NLdSt<op23, op21_20, op11_8, op7_4, oops, iops, itin, opc,
1630 dt, asm, cstr, pattern> {
1634 class PseudoNLdSt<dag oops, dag iops, InstrItinClass itin, string cstr>
1635 : InstARM<AddrMode6, 4, IndexModeNone, Pseudo, NeonDomain, cstr,
1637 let OutOperandList = oops;
1638 let InOperandList = !con(iops, (ins pred:$p));
1639 list<Predicate> Predicates = [HasNEON];
1642 class PseudoNeonI<dag oops, dag iops, InstrItinClass itin, string cstr,
1644 : InstARM<AddrModeNone, 4, IndexModeNone, Pseudo, NeonDomain, cstr,
1646 let OutOperandList = oops;
1647 let InOperandList = !con(iops, (ins pred:$p));
1648 let Pattern = pattern;
1649 list<Predicate> Predicates = [HasNEON];
1652 class NDataI<dag oops, dag iops, Format f, InstrItinClass itin,
1653 string opc, string dt, string asm, string cstr, list<dag> pattern>
1654 : NeonI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, dt, asm, cstr,
1656 let Inst{31-25} = 0b1111001;
1657 let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
1660 class NDataXI<dag oops, dag iops, Format f, InstrItinClass itin,
1661 string opc, string asm, string cstr, list<dag> pattern>
1662 : NeonXI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, asm,
1664 let Inst{31-25} = 0b1111001;
1665 let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
1668 // NEON "one register and a modified immediate" format.
1669 class N1ModImm<bit op23, bits<3> op21_19, bits<4> op11_8, bit op7, bit op6,
1671 dag oops, dag iops, InstrItinClass itin,
1672 string opc, string dt, string asm, string cstr,
1674 : NDataI<oops, iops, N1RegModImmFrm, itin, opc, dt, asm, cstr, pattern> {
1675 let Inst{23} = op23;
1676 let Inst{21-19} = op21_19;
1677 let Inst{11-8} = op11_8;
1683 // Instruction operands.
1687 let Inst{15-12} = Vd{3-0};
1688 let Inst{22} = Vd{4};
1689 let Inst{24} = SIMM{7};
1690 let Inst{18-16} = SIMM{6-4};
1691 let Inst{3-0} = SIMM{3-0};
1694 // NEON 2 vector register format.
1695 class N2V<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
1696 bits<5> op11_7, bit op6, bit op4,
1697 dag oops, dag iops, InstrItinClass itin,
1698 string opc, string dt, string asm, string cstr, list<dag> pattern>
1699 : NDataI<oops, iops, N2RegFrm, itin, opc, dt, asm, cstr, pattern> {
1700 let Inst{24-23} = op24_23;
1701 let Inst{21-20} = op21_20;
1702 let Inst{19-18} = op19_18;
1703 let Inst{17-16} = op17_16;
1704 let Inst{11-7} = op11_7;
1708 // Instruction operands.
1712 let Inst{15-12} = Vd{3-0};
1713 let Inst{22} = Vd{4};
1714 let Inst{3-0} = Vm{3-0};
1715 let Inst{5} = Vm{4};
1718 // Same as N2V except it doesn't have a datatype suffix.
1719 class N2VX<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
1720 bits<5> op11_7, bit op6, bit op4,
1721 dag oops, dag iops, InstrItinClass itin,
1722 string opc, string asm, string cstr, list<dag> pattern>
1723 : NDataXI<oops, iops, N2RegFrm, itin, opc, asm, cstr, pattern> {
1724 let Inst{24-23} = op24_23;
1725 let Inst{21-20} = op21_20;
1726 let Inst{19-18} = op19_18;
1727 let Inst{17-16} = op17_16;
1728 let Inst{11-7} = op11_7;
1732 // Instruction operands.
1736 let Inst{15-12} = Vd{3-0};
1737 let Inst{22} = Vd{4};
1738 let Inst{3-0} = Vm{3-0};
1739 let Inst{5} = Vm{4};
1742 // NEON 2 vector register with immediate.
1743 class N2VImm<bit op24, bit op23, bits<4> op11_8, bit op7, bit op6, bit op4,
1744 dag oops, dag iops, Format f, InstrItinClass itin,
1745 string opc, string dt, string asm, string cstr, list<dag> pattern>
1746 : NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1747 let Inst{24} = op24;
1748 let Inst{23} = op23;
1749 let Inst{11-8} = op11_8;
1754 // Instruction operands.
1759 let Inst{15-12} = Vd{3-0};
1760 let Inst{22} = Vd{4};
1761 let Inst{3-0} = Vm{3-0};
1762 let Inst{5} = Vm{4};
1763 let Inst{21-16} = SIMM{5-0};
1766 // NEON 3 vector register format.
1768 class N3VCommon<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1769 bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
1770 string opc, string dt, string asm, string cstr,
1772 : NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1773 let Inst{24} = op24;
1774 let Inst{23} = op23;
1775 let Inst{21-20} = op21_20;
1776 let Inst{11-8} = op11_8;
1781 class N3V<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6, bit op4,
1782 dag oops, dag iops, Format f, InstrItinClass itin,
1783 string opc, string dt, string asm, string cstr, list<dag> pattern>
1784 : N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
1785 oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1787 // Instruction operands.
1792 let Inst{15-12} = Vd{3-0};
1793 let Inst{22} = Vd{4};
1794 let Inst{19-16} = Vn{3-0};
1795 let Inst{7} = Vn{4};
1796 let Inst{3-0} = Vm{3-0};
1797 let Inst{5} = Vm{4};
1800 class N3VLane32<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1801 bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
1802 string opc, string dt, string asm, string cstr,
1804 : N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
1805 oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1807 // Instruction operands.
1813 let Inst{15-12} = Vd{3-0};
1814 let Inst{22} = Vd{4};
1815 let Inst{19-16} = Vn{3-0};
1816 let Inst{7} = Vn{4};
1817 let Inst{3-0} = Vm{3-0};
1821 class N3VLane16<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1822 bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
1823 string opc, string dt, string asm, string cstr,
1825 : N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
1826 oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1828 // Instruction operands.
1834 let Inst{15-12} = Vd{3-0};
1835 let Inst{22} = Vd{4};
1836 let Inst{19-16} = Vn{3-0};
1837 let Inst{7} = Vn{4};
1838 let Inst{2-0} = Vm{2-0};
1839 let Inst{5} = lane{1};
1840 let Inst{3} = lane{0};
1843 // Same as N3V except it doesn't have a data type suffix.
1844 class N3VX<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1846 dag oops, dag iops, Format f, InstrItinClass itin,
1847 string opc, string asm, string cstr, list<dag> pattern>
1848 : NDataXI<oops, iops, f, itin, opc, asm, cstr, pattern> {
1849 let Inst{24} = op24;
1850 let Inst{23} = op23;
1851 let Inst{21-20} = op21_20;
1852 let Inst{11-8} = op11_8;
1856 // Instruction operands.
1861 let Inst{15-12} = Vd{3-0};
1862 let Inst{22} = Vd{4};
1863 let Inst{19-16} = Vn{3-0};
1864 let Inst{7} = Vn{4};
1865 let Inst{3-0} = Vm{3-0};
1866 let Inst{5} = Vm{4};
1869 // NEON VMOVs between scalar and core registers.
1870 class NVLaneOp<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1871 dag oops, dag iops, Format f, InstrItinClass itin,
1872 string opc, string dt, string asm, list<dag> pattern>
1873 : InstARM<AddrModeNone, 4, IndexModeNone, f, NeonDomain,
1875 let Inst{27-20} = opcod1;
1876 let Inst{11-8} = opcod2;
1877 let Inst{6-5} = opcod3;
1879 // A8.6.303, A8.6.328, A8.6.329
1880 let Inst{3-0} = 0b0000;
1882 let OutOperandList = oops;
1883 let InOperandList = !con(iops, (ins pred:$p));
1884 let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
1885 let Pattern = pattern;
1886 list<Predicate> Predicates = [HasNEON];
1888 let PostEncoderMethod = "NEONThumb2DupPostEncoder";
1895 let Inst{31-28} = p{3-0};
1897 let Inst{19-16} = V{3-0};
1898 let Inst{15-12} = R{3-0};
1900 class NVGetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1901 dag oops, dag iops, InstrItinClass itin,
1902 string opc, string dt, string asm, list<dag> pattern>
1903 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NGetLnFrm, itin,
1904 opc, dt, asm, pattern>;
1905 class NVSetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1906 dag oops, dag iops, InstrItinClass itin,
1907 string opc, string dt, string asm, list<dag> pattern>
1908 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NSetLnFrm, itin,
1909 opc, dt, asm, pattern>;
1910 class NVDup<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1911 dag oops, dag iops, InstrItinClass itin,
1912 string opc, string dt, string asm, list<dag> pattern>
1913 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NDupFrm, itin,
1914 opc, dt, asm, pattern>;
1916 // Vector Duplicate Lane (from scalar to all elements)
1917 class NVDupLane<bits<4> op19_16, bit op6, dag oops, dag iops,
1918 InstrItinClass itin, string opc, string dt, string asm,
1920 : NDataI<oops, iops, NVDupLnFrm, itin, opc, dt, asm, "", pattern> {
1921 let Inst{24-23} = 0b11;
1922 let Inst{21-20} = 0b11;
1923 let Inst{19-16} = op19_16;
1924 let Inst{11-7} = 0b11000;
1932 let Inst{22} = Vd{4};
1933 let Inst{15-12} = Vd{3-0};
1934 let Inst{5} = Vm{4};
1935 let Inst{3-0} = Vm{3-0};
1938 // NEONFPPat - Same as Pat<>, but requires that the compiler be using NEON
1939 // for single-precision FP.
1940 class NEONFPPat<dag pattern, dag result> : Pat<pattern, result> {
1941 list<Predicate> Predicates = [HasNEON,UseNEONForFP];