1 //===- ARMInstrFormats.td - ARM Instruction Formats ----------*- tablegen -*-=//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 //===----------------------------------------------------------------------===//
12 // ARM Instruction Format Definitions.
15 // Format specifies the encoding used by the instruction. This is part of the
16 // ad-hoc solution used to emit machine instruction encodings by our machine
18 class Format<bits<6> val> {
22 def Pseudo : Format<0>;
23 def MulFrm : Format<1>;
24 def BrFrm : Format<2>;
25 def BrMiscFrm : Format<3>;
27 def DPFrm : Format<4>;
28 def DPSoRegFrm : Format<5>;
30 def LdFrm : Format<6>;
31 def StFrm : Format<7>;
32 def LdMiscFrm : Format<8>;
33 def StMiscFrm : Format<9>;
34 def LdStMulFrm : Format<10>;
36 def LdStExFrm : Format<11>;
38 def ArithMiscFrm : Format<12>;
39 def SatFrm : Format<13>;
40 def ExtFrm : Format<14>;
42 def VFPUnaryFrm : Format<15>;
43 def VFPBinaryFrm : Format<16>;
44 def VFPConv1Frm : Format<17>;
45 def VFPConv2Frm : Format<18>;
46 def VFPConv3Frm : Format<19>;
47 def VFPConv4Frm : Format<20>;
48 def VFPConv5Frm : Format<21>;
49 def VFPLdStFrm : Format<22>;
50 def VFPLdStMulFrm : Format<23>;
51 def VFPMiscFrm : Format<24>;
53 def ThumbFrm : Format<25>;
54 def MiscFrm : Format<26>;
56 def NGetLnFrm : Format<27>;
57 def NSetLnFrm : Format<28>;
58 def NDupFrm : Format<29>;
59 def NLdStFrm : Format<30>;
60 def N1RegModImmFrm: Format<31>;
61 def N2RegFrm : Format<32>;
62 def NVCVTFrm : Format<33>;
63 def NVDupLnFrm : Format<34>;
64 def N2RegVShLFrm : Format<35>;
65 def N2RegVShRFrm : Format<36>;
66 def N3RegFrm : Format<37>;
67 def N3RegVShFrm : Format<38>;
68 def NVExtFrm : Format<39>;
69 def NVMulSLFrm : Format<40>;
70 def NVTBLFrm : Format<41>;
74 // The instruction has an Rn register operand.
75 // UnaryDP - Indicates this is a unary data processing instruction, i.e.
76 // it doesn't have a Rn operand.
77 class UnaryDP { bit isUnaryDataProc = 1; }
79 // Xform16Bit - Indicates this Thumb2 instruction may be transformed into
80 // a 16-bit Thumb instruction if certain conditions are met.
81 class Xform16Bit { bit canXformTo16Bit = 1; }
83 //===----------------------------------------------------------------------===//
84 // ARM Instruction flags. These need to match ARMBaseInstrInfo.h.
87 // FIXME: Once the JIT is MC-ized, these can go away.
89 class AddrMode<bits<5> val> {
92 def AddrModeNone : AddrMode<0>;
93 def AddrMode1 : AddrMode<1>;
94 def AddrMode2 : AddrMode<2>;
95 def AddrMode3 : AddrMode<3>;
96 def AddrMode4 : AddrMode<4>;
97 def AddrMode5 : AddrMode<5>;
98 def AddrMode6 : AddrMode<6>;
99 def AddrModeT1_1 : AddrMode<7>;
100 def AddrModeT1_2 : AddrMode<8>;
101 def AddrModeT1_4 : AddrMode<9>;
102 def AddrModeT1_s : AddrMode<10>;
103 def AddrModeT2_i12 : AddrMode<11>;
104 def AddrModeT2_i8 : AddrMode<12>;
105 def AddrModeT2_so : AddrMode<13>;
106 def AddrModeT2_pc : AddrMode<14>;
107 def AddrModeT2_i8s4 : AddrMode<15>;
108 def AddrMode_i12 : AddrMode<16>;
111 class SizeFlagVal<bits<3> val> {
114 def SizeInvalid : SizeFlagVal<0>; // Unset.
115 def SizeSpecial : SizeFlagVal<1>; // Pseudo or special.
116 def Size8Bytes : SizeFlagVal<2>;
117 def Size4Bytes : SizeFlagVal<3>;
118 def Size2Bytes : SizeFlagVal<4>;
120 // Load / store index mode.
121 class IndexMode<bits<2> val> {
124 def IndexModeNone : IndexMode<0>;
125 def IndexModePre : IndexMode<1>;
126 def IndexModePost : IndexMode<2>;
127 def IndexModeUpd : IndexMode<3>;
129 // Instruction execution domain.
130 class Domain<bits<3> val> {
133 def GenericDomain : Domain<0>;
134 def VFPDomain : Domain<1>; // Instructions in VFP domain only
135 def NeonDomain : Domain<2>; // Instructions in Neon domain only
136 def VFPNeonDomain : Domain<3>; // Instructions in both VFP & Neon domains
137 def VFPNeonA8Domain : Domain<5>; // Instructions in VFP & Neon under A8
139 //===----------------------------------------------------------------------===//
140 // ARM special operands.
143 def CondCodeOperand : AsmOperandClass {
144 let Name = "CondCode";
145 let SuperClasses = [];
148 def CCOutOperand : AsmOperandClass {
150 let SuperClasses = [];
153 def MemBarrierOptOperand : AsmOperandClass {
154 let Name = "MemBarrierOpt";
155 let SuperClasses = [];
156 let ParserMethod = "tryParseMemBarrierOptOperand";
159 def ProcIFlagsOperand : AsmOperandClass {
160 let Name = "ProcIFlags";
161 let SuperClasses = [];
162 let ParserMethod = "tryParseProcIFlagsOperand";
165 def MSRMaskOperand : AsmOperandClass {
166 let Name = "MSRMask";
167 let SuperClasses = [];
168 let ParserMethod = "tryParseMSRMaskOperand";
171 // ARM imod and iflag operands, used only by the CPS instruction.
172 def imod_op : Operand<i32> {
173 let PrintMethod = "printCPSIMod";
176 def iflags_op : Operand<i32> {
177 let PrintMethod = "printCPSIFlag";
178 let ParserMatchClass = ProcIFlagsOperand;
181 // ARM Predicate operand. Default to 14 = always (AL). Second part is CC
182 // register whose default is 0 (no register).
183 def pred : PredicateOperand<OtherVT, (ops i32imm, CCR),
184 (ops (i32 14), (i32 zero_reg))> {
185 let PrintMethod = "printPredicateOperand";
186 let ParserMatchClass = CondCodeOperand;
189 // Conditional code result for instructions whose 's' bit is set, e.g. subs.
190 def cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 zero_reg))> {
191 let EncoderMethod = "getCCOutOpValue";
192 let PrintMethod = "printSBitModifierOperand";
193 let ParserMatchClass = CCOutOperand;
196 // Same as cc_out except it defaults to setting CPSR.
197 def s_cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 CPSR))> {
198 let EncoderMethod = "getCCOutOpValue";
199 let PrintMethod = "printSBitModifierOperand";
200 let ParserMatchClass = CCOutOperand;
203 // ARM special operands for disassembly only.
205 def setend_op : Operand<i32> {
206 let PrintMethod = "printSetendOperand";
209 def cps_opt : Operand<i32> {
210 let PrintMethod = "printCPSOptionOperand";
213 def msr_mask : Operand<i32> {
214 let PrintMethod = "printMSRMaskOperand";
215 let ParserMatchClass = MSRMaskOperand;
218 // A8.6.117, A8.6.118. Different instructions are generated for #0 and #-0.
219 // The neg_zero operand translates -0 to -1, -1 to -2, ..., etc.
220 def neg_zero : Operand<i32> {
221 let PrintMethod = "printNegZeroOperand";
224 // Shift Right Immediate - A shift right immediate is encoded differently from
225 // other shift immediates. The imm6 field is encoded like so:
228 // 8 imm6<5:3> = '001', 8 - <imm> is encoded in imm6<2:0>
229 // 16 imm6<5:4> = '01', 16 - <imm> is encoded in imm6<3:0>
230 // 32 imm6<5> = '1', 32 - <imm> is encoded in imm6<4:0>
231 // 64 64 - <imm> is encoded in imm6<5:0>
232 def shr_imm8 : Operand<i32> {
233 let EncoderMethod = "getShiftRight8Imm";
235 def shr_imm16 : Operand<i32> {
236 let EncoderMethod = "getShiftRight16Imm";
238 def shr_imm32 : Operand<i32> {
239 let EncoderMethod = "getShiftRight32Imm";
241 def shr_imm64 : Operand<i32> {
242 let EncoderMethod = "getShiftRight64Imm";
245 //===----------------------------------------------------------------------===//
246 // ARM Instruction templates.
249 class InstTemplate<AddrMode am, SizeFlagVal sz, IndexMode im,
250 Format f, Domain d, string cstr, InstrItinClass itin>
252 let Namespace = "ARM";
257 bits<2> IndexModeBits = IM.Value;
259 bits<6> Form = F.Value;
261 bit isUnaryDataProc = 0;
262 bit canXformTo16Bit = 0;
264 // If this is a pseudo instruction, mark it isCodeGenOnly.
265 let isCodeGenOnly = !eq(!cast<string>(f), "Pseudo");
267 // The layout of TSFlags should be kept in sync with ARMBaseInstrInfo.h.
268 let TSFlags{4-0} = AM.Value;
269 let TSFlags{7-5} = SZ.Value;
270 let TSFlags{9-8} = IndexModeBits;
271 let TSFlags{15-10} = Form;
272 let TSFlags{16} = isUnaryDataProc;
273 let TSFlags{17} = canXformTo16Bit;
274 let TSFlags{20-18} = D.Value;
276 let Constraints = cstr;
277 let Itinerary = itin;
284 class InstARM<AddrMode am, SizeFlagVal sz, IndexMode im,
285 Format f, Domain d, string cstr, InstrItinClass itin>
286 : InstTemplate<am, sz, im, f, d, cstr, itin>, Encoding;
288 // This Encoding-less class is used by Thumb1 to specify the encoding bits later
289 // on by adding flavors to specific instructions.
290 class InstThumb<AddrMode am, SizeFlagVal sz, IndexMode im,
291 Format f, Domain d, string cstr, InstrItinClass itin>
292 : InstTemplate<am, sz, im, f, d, cstr, itin>;
294 class PseudoInst<dag oops, dag iops, InstrItinClass itin, list<dag> pattern>
295 // FIXME: This really should derive from InstTemplate instead, as pseudos
296 // don't need encoding information. TableGen doesn't like that
297 // currently. Need to figure out why and fix it.
298 : InstARM<AddrModeNone, SizeSpecial, IndexModeNone, Pseudo, GenericDomain,
300 let OutOperandList = oops;
301 let InOperandList = iops;
302 let Pattern = pattern;
305 // PseudoInst that's ARM-mode only.
306 class ARMPseudoInst<dag oops, dag iops, SizeFlagVal sz, InstrItinClass itin,
308 : PseudoInst<oops, iops, itin, pattern> {
310 list<Predicate> Predicates = [IsARM];
313 // PseudoInst that's Thumb-mode only.
314 class tPseudoInst<dag oops, dag iops, SizeFlagVal sz, InstrItinClass itin,
316 : PseudoInst<oops, iops, itin, pattern> {
318 list<Predicate> Predicates = [IsThumb];
321 // PseudoInst that's Thumb2-mode only.
322 class t2PseudoInst<dag oops, dag iops, SizeFlagVal sz, InstrItinClass itin,
324 : PseudoInst<oops, iops, itin, pattern> {
326 list<Predicate> Predicates = [IsThumb2];
328 // Almost all ARM instructions are predicable.
329 class I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
330 IndexMode im, Format f, InstrItinClass itin,
331 string opc, string asm, string cstr,
333 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
336 let OutOperandList = oops;
337 let InOperandList = !con(iops, (ins pred:$p));
338 let AsmString = !strconcat(opc, "${p}", asm);
339 let Pattern = pattern;
340 list<Predicate> Predicates = [IsARM];
343 // A few are not predicable
344 class InoP<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
345 IndexMode im, Format f, InstrItinClass itin,
346 string opc, string asm, string cstr,
348 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
349 let OutOperandList = oops;
350 let InOperandList = iops;
351 let AsmString = !strconcat(opc, asm);
352 let Pattern = pattern;
353 let isPredicable = 0;
354 list<Predicate> Predicates = [IsARM];
357 // Same as I except it can optionally modify CPSR. Note it's modeled as an input
358 // operand since by default it's a zero register. It will become an implicit def
359 // once it's "flipped".
360 class sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
361 IndexMode im, Format f, InstrItinClass itin,
362 string opc, string asm, string cstr,
364 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
365 bits<4> p; // Predicate operand
366 bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
370 let OutOperandList = oops;
371 let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
372 let AsmString = !strconcat(opc, "${s}${p}", asm);
373 let Pattern = pattern;
374 list<Predicate> Predicates = [IsARM];
378 class XI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
379 IndexMode im, Format f, InstrItinClass itin,
380 string asm, string cstr, list<dag> pattern>
381 : InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
382 let OutOperandList = oops;
383 let InOperandList = iops;
385 let Pattern = pattern;
386 list<Predicate> Predicates = [IsARM];
389 class AI<dag oops, dag iops, Format f, InstrItinClass itin,
390 string opc, string asm, list<dag> pattern>
391 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
392 opc, asm, "", pattern>;
393 class AsI<dag oops, dag iops, Format f, InstrItinClass itin,
394 string opc, string asm, list<dag> pattern>
395 : sI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
396 opc, asm, "", pattern>;
397 class AXI<dag oops, dag iops, Format f, InstrItinClass itin,
398 string asm, list<dag> pattern>
399 : XI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
401 class AInoP<dag oops, dag iops, Format f, InstrItinClass itin,
402 string opc, string asm, list<dag> pattern>
403 : InoP<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
404 opc, asm, "", pattern>;
406 // Ctrl flow instructions
407 class ABI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
408 string opc, string asm, list<dag> pattern>
409 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, BrFrm, itin,
410 opc, asm, "", pattern> {
411 let Inst{27-24} = opcod;
413 class ABXI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
414 string asm, list<dag> pattern>
415 : XI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, BrFrm, itin,
417 let Inst{27-24} = opcod;
420 // BR_JT instructions
421 class JTI<dag oops, dag iops, InstrItinClass itin,
422 string asm, list<dag> pattern>
423 : XI<oops, iops, AddrModeNone, SizeSpecial, IndexModeNone, BrMiscFrm, itin,
426 // Atomic load/store instructions
427 class AIldrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
428 string opc, string asm, list<dag> pattern>
429 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, LdStExFrm, itin,
430 opc, asm, "", pattern> {
433 let Inst{27-23} = 0b00011;
434 let Inst{22-21} = opcod;
436 let Inst{19-16} = Rn;
437 let Inst{15-12} = Rt;
438 let Inst{11-0} = 0b111110011111;
440 class AIstrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
441 string opc, string asm, list<dag> pattern>
442 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, LdStExFrm, itin,
443 opc, asm, "", pattern> {
447 let Inst{27-23} = 0b00011;
448 let Inst{22-21} = opcod;
450 let Inst{19-16} = Rn;
451 let Inst{15-12} = Rd;
452 let Inst{11-4} = 0b11111001;
455 class AIswp<bit b, dag oops, dag iops, string opc, list<dag> pattern>
456 : AI<oops, iops, MiscFrm, NoItinerary, opc, "\t$Rt, $Rt2, [$Rn]", pattern> {
460 let Inst{27-23} = 0b00010;
462 let Inst{21-20} = 0b00;
463 let Inst{19-16} = Rn;
464 let Inst{15-12} = Rt;
465 let Inst{11-4} = 0b00001001;
469 // addrmode1 instructions
470 class AI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
471 string opc, string asm, list<dag> pattern>
472 : I<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
473 opc, asm, "", pattern> {
474 let Inst{24-21} = opcod;
475 let Inst{27-26} = 0b00;
477 class AsI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
478 string opc, string asm, list<dag> pattern>
479 : sI<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
480 opc, asm, "", pattern> {
481 let Inst{24-21} = opcod;
482 let Inst{27-26} = 0b00;
484 class AXI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
485 string asm, list<dag> pattern>
486 : XI<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
488 let Inst{24-21} = opcod;
489 let Inst{27-26} = 0b00;
494 // LDR/LDRB/STR/STRB/...
495 class AI2ldst<bits<3> op, bit isLd, bit isByte, dag oops, dag iops, AddrMode am,
496 Format f, InstrItinClass itin, string opc, string asm,
498 : I<oops, iops, am, Size4Bytes, IndexModeNone, f, itin, opc, asm,
500 let Inst{27-25} = op;
501 let Inst{24} = 1; // 24 == P
503 let Inst{22} = isByte;
504 let Inst{21} = 0; // 21 == W
507 // Indexed load/stores
508 class AI2ldstidx<bit isLd, bit isByte, bit isPre, dag oops, dag iops,
509 IndexMode im, Format f, InstrItinClass itin, string opc,
510 string asm, string cstr, list<dag> pattern>
511 : I<oops, iops, AddrMode2, Size4Bytes, im, f, itin,
512 opc, asm, cstr, pattern> {
514 let Inst{27-26} = 0b01;
515 let Inst{24} = isPre; // P bit
516 let Inst{22} = isByte; // B bit
517 let Inst{21} = isPre; // W bit
518 let Inst{20} = isLd; // L bit
519 let Inst{15-12} = Rt;
521 class AI2stridx<bit isByte, bit isPre, dag oops, dag iops,
522 IndexMode im, Format f, InstrItinClass itin, string opc,
523 string asm, string cstr, list<dag> pattern>
524 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
526 // AM2 store w/ two operands: (GPR, am2offset)
527 // {13} 1 == Rm, 0 == imm12
532 let Inst{25} = offset{13};
533 let Inst{23} = offset{12};
534 let Inst{19-16} = Rn;
535 let Inst{11-0} = offset{11-0};
538 // addrmode3 instructions
539 class AI3ld<bits<4> op, bit op20, dag oops, dag iops, Format f,
540 InstrItinClass itin, string opc, string asm, list<dag> pattern>
541 : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
542 opc, asm, "", pattern> {
545 let Inst{27-25} = 0b000;
546 let Inst{24} = 1; // P bit
547 let Inst{23} = addr{8}; // U bit
548 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
549 let Inst{21} = 0; // W bit
550 let Inst{20} = op20; // L bit
551 let Inst{19-16} = addr{12-9}; // Rn
552 let Inst{15-12} = Rt; // Rt
553 let Inst{11-8} = addr{7-4}; // imm7_4/zero
555 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
558 class AI3ldstidx<bits<4> op, bit op20, bit isLd, bit isPre, dag oops, dag iops,
559 IndexMode im, Format f, InstrItinClass itin, string opc,
560 string asm, string cstr, list<dag> pattern>
561 : I<oops, iops, AddrMode3, Size4Bytes, im, f, itin,
562 opc, asm, cstr, pattern> {
564 let Inst{27-25} = 0b000;
565 let Inst{24} = isPre; // P bit
566 let Inst{21} = isPre; // W bit
567 let Inst{20} = op20; // L bit
568 let Inst{15-12} = Rt; // Rt
571 class AI3stridx<bits<4> op, bit isByte, bit isPre, dag oops, dag iops,
572 IndexMode im, Format f, InstrItinClass itin, string opc,
573 string asm, string cstr, list<dag> pattern>
574 : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
576 // AM3 store w/ two operands: (GPR, am3offset)
580 let Inst{27-25} = 0b000;
581 let Inst{23} = offset{8};
582 let Inst{22} = offset{9};
583 let Inst{19-16} = Rn;
584 let Inst{15-12} = Rt; // Rt
585 let Inst{11-8} = offset{7-4}; // imm7_4/zero
587 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
591 class AI3str<bits<4> op, dag oops, dag iops, Format f, InstrItinClass itin,
592 string opc, string asm, list<dag> pattern>
593 : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
594 opc, asm, "", pattern> {
597 let Inst{27-25} = 0b000;
598 let Inst{24} = 1; // P bit
599 let Inst{23} = addr{8}; // U bit
600 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
601 let Inst{21} = 0; // W bit
602 let Inst{20} = 0; // L bit
603 let Inst{19-16} = addr{12-9}; // Rn
604 let Inst{15-12} = Rt; // Rt
605 let Inst{11-8} = addr{7-4}; // imm7_4/zero
607 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
610 // Pre-indexed stores
611 class AI3sthpr<dag oops, dag iops, Format f, InstrItinClass itin,
612 string opc, string asm, string cstr, list<dag> pattern>
613 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
614 opc, asm, cstr, pattern> {
616 let Inst{5} = 1; // H bit
617 let Inst{6} = 0; // S bit
619 let Inst{20} = 0; // L bit
620 let Inst{21} = 1; // W bit
621 let Inst{24} = 1; // P bit
622 let Inst{27-25} = 0b000;
624 class AI3stdpr<dag oops, dag iops, Format f, InstrItinClass itin,
625 string opc, string asm, string cstr, list<dag> pattern>
626 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
627 opc, asm, cstr, pattern> {
629 let Inst{5} = 1; // H bit
630 let Inst{6} = 1; // S bit
632 let Inst{20} = 0; // L bit
633 let Inst{21} = 1; // W bit
634 let Inst{24} = 1; // P bit
635 let Inst{27-25} = 0b000;
638 // Post-indexed stores
639 class AI3sthpo<dag oops, dag iops, Format f, InstrItinClass itin,
640 string opc, string asm, string cstr, list<dag> pattern>
641 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
642 opc, asm, cstr,pattern> {
644 let Inst{5} = 1; // H bit
645 let Inst{6} = 0; // S bit
647 let Inst{20} = 0; // L bit
648 let Inst{21} = 0; // W bit
649 let Inst{24} = 0; // P bit
650 let Inst{27-25} = 0b000;
652 class AI3stdpo<dag oops, dag iops, Format f, InstrItinClass itin,
653 string opc, string asm, string cstr, list<dag> pattern>
654 : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
655 opc, asm, cstr, pattern> {
657 let Inst{5} = 1; // H bit
658 let Inst{6} = 1; // S bit
660 let Inst{20} = 0; // L bit
661 let Inst{21} = 0; // W bit
662 let Inst{24} = 0; // P bit
663 let Inst{27-25} = 0b000;
666 // addrmode4 instructions
667 class AXI4<dag oops, dag iops, IndexMode im, Format f, InstrItinClass itin,
668 string asm, string cstr, list<dag> pattern>
669 : XI<oops, iops, AddrMode4, Size4Bytes, im, f, itin, asm, cstr, pattern> {
674 let Inst{27-25} = 0b100;
675 let Inst{22} = 0; // S bit
676 let Inst{19-16} = Rn;
677 let Inst{15-0} = regs;
680 // Unsigned multiply, multiply-accumulate instructions.
681 class AMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
682 string opc, string asm, list<dag> pattern>
683 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
684 opc, asm, "", pattern> {
685 let Inst{7-4} = 0b1001;
686 let Inst{20} = 0; // S bit
687 let Inst{27-21} = opcod;
689 class AsMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
690 string opc, string asm, list<dag> pattern>
691 : sI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
692 opc, asm, "", pattern> {
693 let Inst{7-4} = 0b1001;
694 let Inst{27-21} = opcod;
697 // Most significant word multiply
698 class AMul2I<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
699 InstrItinClass itin, string opc, string asm, list<dag> pattern>
700 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
701 opc, asm, "", pattern> {
705 let Inst{7-4} = opc7_4;
707 let Inst{27-21} = opcod;
708 let Inst{19-16} = Rd;
712 // MSW multiple w/ Ra operand
713 class AMul2Ia<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
714 InstrItinClass itin, string opc, string asm, list<dag> pattern>
715 : AMul2I<opcod, opc7_4, oops, iops, itin, opc, asm, pattern> {
717 let Inst{15-12} = Ra;
720 // SMUL<x><y> / SMULW<y> / SMLA<x><y> / SMLAW<x><y>
721 class AMulxyIbase<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
722 InstrItinClass itin, string opc, string asm, list<dag> pattern>
723 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
724 opc, asm, "", pattern> {
730 let Inst{27-21} = opcod;
731 let Inst{6-5} = bit6_5;
735 class AMulxyI<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
736 InstrItinClass itin, string opc, string asm, list<dag> pattern>
737 : AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
739 let Inst{19-16} = Rd;
742 // AMulxyI with Ra operand
743 class AMulxyIa<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
744 InstrItinClass itin, string opc, string asm, list<dag> pattern>
745 : AMulxyI<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
747 let Inst{15-12} = Ra;
750 class AMulxyI64<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
751 InstrItinClass itin, string opc, string asm, list<dag> pattern>
752 : AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
755 let Inst{19-16} = RdHi;
756 let Inst{15-12} = RdLo;
759 // Extend instructions.
760 class AExtI<bits<8> opcod, dag oops, dag iops, InstrItinClass itin,
761 string opc, string asm, list<dag> pattern>
762 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ExtFrm, itin,
763 opc, asm, "", pattern> {
764 // All AExtI instructions have Rd and Rm register operands.
767 let Inst{15-12} = Rd;
769 let Inst{7-4} = 0b0111;
770 let Inst{9-8} = 0b00;
771 let Inst{27-20} = opcod;
774 // Misc Arithmetic instructions.
775 class AMiscA1I<bits<8> opcod, bits<4> opc7_4, dag oops, dag iops,
776 InstrItinClass itin, string opc, string asm, list<dag> pattern>
777 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ArithMiscFrm, itin,
778 opc, asm, "", pattern> {
781 let Inst{27-20} = opcod;
782 let Inst{19-16} = 0b1111;
783 let Inst{15-12} = Rd;
784 let Inst{11-8} = 0b1111;
785 let Inst{7-4} = opc7_4;
790 class APKHI<bits<8> opcod, bit tb, dag oops, dag iops, InstrItinClass itin,
791 string opc, string asm, list<dag> pattern>
792 : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ArithMiscFrm, itin,
793 opc, asm, "", pattern> {
798 let Inst{27-20} = opcod;
799 let Inst{19-16} = Rn;
800 let Inst{15-12} = Rd;
801 let Inst{11-7} = sh{7-3};
803 let Inst{5-4} = 0b01;
807 //===----------------------------------------------------------------------===//
809 // ARMPat - Same as Pat<>, but requires that the compiler be in ARM mode.
810 class ARMPat<dag pattern, dag result> : Pat<pattern, result> {
811 list<Predicate> Predicates = [IsARM];
813 class ARMV5TEPat<dag pattern, dag result> : Pat<pattern, result> {
814 list<Predicate> Predicates = [IsARM, HasV5TE];
816 class ARMV6Pat<dag pattern, dag result> : Pat<pattern, result> {
817 list<Predicate> Predicates = [IsARM, HasV6];
820 //===----------------------------------------------------------------------===//
821 // Thumb Instruction Format Definitions.
824 class ThumbI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
825 InstrItinClass itin, string asm, string cstr, list<dag> pattern>
826 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
827 let OutOperandList = oops;
828 let InOperandList = iops;
830 let Pattern = pattern;
831 list<Predicate> Predicates = [IsThumb];
834 // TI - Thumb instruction.
835 class TI<dag oops, dag iops, InstrItinClass itin, string asm, list<dag> pattern>
836 : ThumbI<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "", pattern>;
838 // Two-address instructions
839 class TIt<dag oops, dag iops, InstrItinClass itin, string asm,
841 : ThumbI<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "$lhs = $dst",
844 // tBL, tBX 32-bit instructions
845 class TIx2<bits<5> opcod1, bits<2> opcod2, bit opcod3,
846 dag oops, dag iops, InstrItinClass itin, string asm,
848 : ThumbI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>,
850 let Inst{31-27} = opcod1;
851 let Inst{15-14} = opcod2;
852 let Inst{12} = opcod3;
855 // Move to/from coprocessor instructions
856 class T1Cop<dag oops, dag iops, string asm, list<dag> pattern>
857 : ThumbI<oops, iops, AddrModeNone, Size4Bytes, NoItinerary, asm, "", pattern>,
858 Encoding, Requires<[IsThumb, HasV6]> {
859 let Inst{31-28} = 0b1110;
862 // BR_JT instructions
863 class TJTI<dag oops, dag iops, InstrItinClass itin, string asm,
865 : ThumbI<oops, iops, AddrModeNone, SizeSpecial, itin, asm, "", pattern>;
868 class Thumb1I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
869 InstrItinClass itin, string asm, string cstr, list<dag> pattern>
870 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
871 let OutOperandList = oops;
872 let InOperandList = iops;
874 let Pattern = pattern;
875 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
878 class T1I<dag oops, dag iops, InstrItinClass itin,
879 string asm, list<dag> pattern>
880 : Thumb1I<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "", pattern>;
881 class T1Ix2<dag oops, dag iops, InstrItinClass itin,
882 string asm, list<dag> pattern>
883 : Thumb1I<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>;
885 // Two-address instructions
886 class T1It<dag oops, dag iops, InstrItinClass itin,
887 string asm, string cstr, list<dag> pattern>
888 : Thumb1I<oops, iops, AddrModeNone, Size2Bytes, itin,
891 // Thumb1 instruction that can either be predicated or set CPSR.
892 class Thumb1sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
894 string opc, string asm, string cstr, list<dag> pattern>
895 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
896 let OutOperandList = !con(oops, (outs s_cc_out:$s));
897 let InOperandList = !con(iops, (ins pred:$p));
898 let AsmString = !strconcat(opc, "${s}${p}", asm);
899 let Pattern = pattern;
900 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
903 class T1sI<dag oops, dag iops, InstrItinClass itin,
904 string opc, string asm, list<dag> pattern>
905 : Thumb1sI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm, "", pattern>;
907 // Two-address instructions
908 class T1sIt<dag oops, dag iops, InstrItinClass itin,
909 string opc, string asm, list<dag> pattern>
910 : Thumb1sI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm,
911 "$Rn = $Rdn", pattern>;
913 // Thumb1 instruction that can be predicated.
914 class Thumb1pI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
916 string opc, string asm, string cstr, list<dag> pattern>
917 : InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
918 let OutOperandList = oops;
919 let InOperandList = !con(iops, (ins pred:$p));
920 let AsmString = !strconcat(opc, "${p}", asm);
921 let Pattern = pattern;
922 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
925 class T1pI<dag oops, dag iops, InstrItinClass itin,
926 string opc, string asm, list<dag> pattern>
927 : Thumb1pI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm, "", pattern>;
929 // Two-address instructions
930 class T1pIt<dag oops, dag iops, InstrItinClass itin,
931 string opc, string asm, list<dag> pattern>
932 : Thumb1pI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm,
933 "$Rn = $Rdn", pattern>;
935 class T1pIs<dag oops, dag iops,
936 InstrItinClass itin, string opc, string asm, list<dag> pattern>
937 : Thumb1pI<oops, iops, AddrModeT1_s, Size2Bytes, itin, opc, asm, "", pattern>;
939 class Encoding16 : Encoding {
940 let Inst{31-16} = 0x0000;
943 // A6.2 16-bit Thumb instruction encoding
944 class T1Encoding<bits<6> opcode> : Encoding16 {
945 let Inst{15-10} = opcode;
948 // A6.2.1 Shift (immediate), add, subtract, move, and compare encoding.
949 class T1General<bits<5> opcode> : Encoding16 {
950 let Inst{15-14} = 0b00;
951 let Inst{13-9} = opcode;
954 // A6.2.2 Data-processing encoding.
955 class T1DataProcessing<bits<4> opcode> : Encoding16 {
956 let Inst{15-10} = 0b010000;
957 let Inst{9-6} = opcode;
960 // A6.2.3 Special data instructions and branch and exchange encoding.
961 class T1Special<bits<4> opcode> : Encoding16 {
962 let Inst{15-10} = 0b010001;
963 let Inst{9-6} = opcode;
966 // A6.2.4 Load/store single data item encoding.
967 class T1LoadStore<bits<4> opA, bits<3> opB> : Encoding16 {
968 let Inst{15-12} = opA;
969 let Inst{11-9} = opB;
971 class T1LdStSP<bits<3> opB> : T1LoadStore<0b1001, opB>; // SP relative
973 // Helper classes to encode Thumb1 loads and stores. For immediates, the
974 // following bits are used for "opA" (see A6.2.4):
976 // 0b0110 => Immediate, 4 bytes
977 // 0b1000 => Immediate, 2 bytes
978 // 0b0111 => Immediate, 1 byte
979 class T1pILdStEncode<bits<3> opcode, dag oops, dag iops, AddrMode am,
980 InstrItinClass itin, string opc, string asm,
982 : Thumb1pI<oops, iops, am, Size2Bytes, itin, opc, asm, "", pattern>,
983 T1LoadStore<0b0101, opcode> {
986 let Inst{8-6} = addr{5-3}; // Rm
987 let Inst{5-3} = addr{2-0}; // Rn
990 class T1pILdStEncodeImm<bits<4> opA, bit opB, dag oops, dag iops, AddrMode am,
991 InstrItinClass itin, string opc, string asm,
993 : Thumb1pI<oops, iops, am, Size2Bytes, itin, opc, asm, "", pattern>,
994 T1LoadStore<opA, {opB,?,?}> {
997 let Inst{10-6} = addr{7-3}; // imm5
998 let Inst{5-3} = addr{2-0}; // Rn
1002 // A6.2.5 Miscellaneous 16-bit instructions encoding.
1003 class T1Misc<bits<7> opcode> : Encoding16 {
1004 let Inst{15-12} = 0b1011;
1005 let Inst{11-5} = opcode;
1008 // Thumb2I - Thumb2 instruction. Almost all Thumb2 instructions are predicable.
1009 class Thumb2I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1010 InstrItinClass itin,
1011 string opc, string asm, string cstr, list<dag> pattern>
1012 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1013 let OutOperandList = oops;
1014 let InOperandList = !con(iops, (ins pred:$p));
1015 let AsmString = !strconcat(opc, "${p}", asm);
1016 let Pattern = pattern;
1017 list<Predicate> Predicates = [IsThumb2];
1020 // Same as Thumb2I except it can optionally modify CPSR. Note it's modeled as an
1021 // input operand since by default it's a zero register. It will become an
1022 // implicit def once it's "flipped".
1024 // FIXME: This uses unified syntax so {s} comes before {p}. We should make it
1026 class Thumb2sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1027 InstrItinClass itin,
1028 string opc, string asm, string cstr, list<dag> pattern>
1029 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1030 bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
1033 let OutOperandList = oops;
1034 let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
1035 let AsmString = !strconcat(opc, "${s}${p}", asm);
1036 let Pattern = pattern;
1037 list<Predicate> Predicates = [IsThumb2];
1041 class Thumb2XI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1042 InstrItinClass itin,
1043 string asm, string cstr, list<dag> pattern>
1044 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1045 let OutOperandList = oops;
1046 let InOperandList = iops;
1047 let AsmString = asm;
1048 let Pattern = pattern;
1049 list<Predicate> Predicates = [IsThumb2];
1052 class ThumbXI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1053 InstrItinClass itin,
1054 string asm, string cstr, list<dag> pattern>
1055 : InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
1056 let OutOperandList = oops;
1057 let InOperandList = iops;
1058 let AsmString = asm;
1059 let Pattern = pattern;
1060 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
1063 class T2I<dag oops, dag iops, InstrItinClass itin,
1064 string opc, string asm, list<dag> pattern>
1065 : Thumb2I<oops, iops, AddrModeNone, Size4Bytes, itin, opc, asm, "", pattern>;
1066 class T2Ii12<dag oops, dag iops, InstrItinClass itin,
1067 string opc, string asm, list<dag> pattern>
1068 : Thumb2I<oops, iops, AddrModeT2_i12, Size4Bytes, itin, opc, asm, "",pattern>;
1069 class T2Ii8<dag oops, dag iops, InstrItinClass itin,
1070 string opc, string asm, list<dag> pattern>
1071 : Thumb2I<oops, iops, AddrModeT2_i8, Size4Bytes, itin, opc, asm, "", pattern>;
1072 class T2Iso<dag oops, dag iops, InstrItinClass itin,
1073 string opc, string asm, list<dag> pattern>
1074 : Thumb2I<oops, iops, AddrModeT2_so, Size4Bytes, itin, opc, asm, "", pattern>;
1075 class T2Ipc<dag oops, dag iops, InstrItinClass itin,
1076 string opc, string asm, list<dag> pattern>
1077 : Thumb2I<oops, iops, AddrModeT2_pc, Size4Bytes, itin, opc, asm, "", pattern>;
1078 class T2Ii8s4<bit P, bit W, bit isLoad, dag oops, dag iops, InstrItinClass itin,
1079 string opc, string asm, list<dag> pattern>
1080 : Thumb2I<oops, iops, AddrModeT2_i8s4, Size4Bytes, itin, opc, asm, "",
1085 let Inst{31-25} = 0b1110100;
1087 let Inst{23} = addr{8};
1090 let Inst{20} = isLoad;
1091 let Inst{19-16} = addr{12-9};
1092 let Inst{15-12} = Rt{3-0};
1093 let Inst{11-8} = Rt2{3-0};
1094 let Inst{7-0} = addr{7-0};
1097 class T2sI<dag oops, dag iops, InstrItinClass itin,
1098 string opc, string asm, list<dag> pattern>
1099 : Thumb2sI<oops, iops, AddrModeNone, Size4Bytes, itin, opc, asm, "", pattern>;
1101 class T2XI<dag oops, dag iops, InstrItinClass itin,
1102 string asm, list<dag> pattern>
1103 : Thumb2XI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>;
1104 class T2JTI<dag oops, dag iops, InstrItinClass itin,
1105 string asm, list<dag> pattern>
1106 : Thumb2XI<oops, iops, AddrModeNone, SizeSpecial, itin, asm, "", pattern>;
1108 // Move to/from coprocessor instructions
1109 class T2Cop<dag oops, dag iops, string asm, list<dag> pattern>
1110 : T2XI<oops, iops, NoItinerary, asm, pattern>, Requires<[IsThumb2, HasV6]> {
1111 let Inst{31-28} = 0b1111;
1114 // Two-address instructions
1115 class T2XIt<dag oops, dag iops, InstrItinClass itin,
1116 string asm, string cstr, list<dag> pattern>
1117 : Thumb2XI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, cstr, pattern>;
1119 // T2Iidxldst - Thumb2 indexed load / store instructions.
1120 class T2Iidxldst<bit signed, bits<2> opcod, bit load, bit pre,
1122 AddrMode am, IndexMode im, InstrItinClass itin,
1123 string opc, string asm, string cstr, list<dag> pattern>
1124 : InstARM<am, Size4Bytes, im, ThumbFrm, GenericDomain, cstr, itin> {
1125 let OutOperandList = oops;
1126 let InOperandList = !con(iops, (ins pred:$p));
1127 let AsmString = !strconcat(opc, "${p}", asm);
1128 let Pattern = pattern;
1129 list<Predicate> Predicates = [IsThumb2];
1130 let Inst{31-27} = 0b11111;
1131 let Inst{26-25} = 0b00;
1132 let Inst{24} = signed;
1134 let Inst{22-21} = opcod;
1135 let Inst{20} = load;
1137 // (P, W) = (1, 1) Pre-indexed or (0, 1) Post-indexed
1138 let Inst{10} = pre; // The P bit.
1139 let Inst{8} = 1; // The W bit.
1142 let Inst{7-0} = addr{7-0};
1143 let Inst{9} = addr{8}; // Sign bit
1147 let Inst{15-12} = Rt{3-0};
1148 let Inst{19-16} = Rn{3-0};
1151 // Tv5Pat - Same as Pat<>, but requires V5T Thumb mode.
1152 class Tv5Pat<dag pattern, dag result> : Pat<pattern, result> {
1153 list<Predicate> Predicates = [IsThumb, IsThumb1Only, HasV5T];
1156 // T1Pat - Same as Pat<>, but requires that the compiler be in Thumb1 mode.
1157 class T1Pat<dag pattern, dag result> : Pat<pattern, result> {
1158 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
1161 // T2Pat - Same as Pat<>, but requires that the compiler be in Thumb2 mode.
1162 class T2Pat<dag pattern, dag result> : Pat<pattern, result> {
1163 list<Predicate> Predicates = [IsThumb2];
1166 //===----------------------------------------------------------------------===//
1168 //===----------------------------------------------------------------------===//
1169 // ARM VFP Instruction templates.
1172 // Almost all VFP instructions are predicable.
1173 class VFPI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1174 IndexMode im, Format f, InstrItinClass itin,
1175 string opc, string asm, string cstr, list<dag> pattern>
1176 : InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
1178 let Inst{31-28} = p;
1179 let OutOperandList = oops;
1180 let InOperandList = !con(iops, (ins pred:$p));
1181 let AsmString = !strconcat(opc, "${p}", asm);
1182 let Pattern = pattern;
1183 let PostEncoderMethod = "VFPThumb2PostEncoder";
1184 list<Predicate> Predicates = [HasVFP2];
1188 class VFPXI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
1189 IndexMode im, Format f, InstrItinClass itin,
1190 string asm, string cstr, list<dag> pattern>
1191 : InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
1193 let Inst{31-28} = p;
1194 let OutOperandList = oops;
1195 let InOperandList = iops;
1196 let AsmString = asm;
1197 let Pattern = pattern;
1198 let PostEncoderMethod = "VFPThumb2PostEncoder";
1199 list<Predicate> Predicates = [HasVFP2];
1202 class VFPAI<dag oops, dag iops, Format f, InstrItinClass itin,
1203 string opc, string asm, list<dag> pattern>
1204 : VFPI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
1205 opc, asm, "", pattern> {
1206 let PostEncoderMethod = "VFPThumb2PostEncoder";
1209 // ARM VFP addrmode5 loads and stores
1210 class ADI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
1211 InstrItinClass itin,
1212 string opc, string asm, list<dag> pattern>
1213 : VFPI<oops, iops, AddrMode5, Size4Bytes, IndexModeNone,
1214 VFPLdStFrm, itin, opc, asm, "", pattern> {
1215 // Instruction operands.
1219 // Encode instruction operands.
1220 let Inst{23} = addr{8}; // U (add = (U == '1'))
1221 let Inst{22} = Dd{4};
1222 let Inst{19-16} = addr{12-9}; // Rn
1223 let Inst{15-12} = Dd{3-0};
1224 let Inst{7-0} = addr{7-0}; // imm8
1226 // TODO: Mark the instructions with the appropriate subtarget info.
1227 let Inst{27-24} = opcod1;
1228 let Inst{21-20} = opcod2;
1229 let Inst{11-9} = 0b101;
1230 let Inst{8} = 1; // Double precision
1232 // Loads & stores operate on both NEON and VFP pipelines.
1233 let D = VFPNeonDomain;
1236 class ASI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
1237 InstrItinClass itin,
1238 string opc, string asm, list<dag> pattern>
1239 : VFPI<oops, iops, AddrMode5, Size4Bytes, IndexModeNone,
1240 VFPLdStFrm, itin, opc, asm, "", pattern> {
1241 // Instruction operands.
1245 // Encode instruction operands.
1246 let Inst{23} = addr{8}; // U (add = (U == '1'))
1247 let Inst{22} = Sd{0};
1248 let Inst{19-16} = addr{12-9}; // Rn
1249 let Inst{15-12} = Sd{4-1};
1250 let Inst{7-0} = addr{7-0}; // imm8
1252 // TODO: Mark the instructions with the appropriate subtarget info.
1253 let Inst{27-24} = opcod1;
1254 let Inst{21-20} = opcod2;
1255 let Inst{11-9} = 0b101;
1256 let Inst{8} = 0; // Single precision
1258 // Loads & stores operate on both NEON and VFP pipelines.
1259 let D = VFPNeonDomain;
1262 // VFP Load / store multiple pseudo instructions.
1263 class PseudoVFPLdStM<dag oops, dag iops, InstrItinClass itin, string cstr,
1265 : InstARM<AddrMode4, Size4Bytes, IndexModeNone, Pseudo, VFPNeonDomain,
1267 let OutOperandList = oops;
1268 let InOperandList = !con(iops, (ins pred:$p));
1269 let Pattern = pattern;
1270 list<Predicate> Predicates = [HasVFP2];
1273 // Load / store multiple
1274 class AXDI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
1275 string asm, string cstr, list<dag> pattern>
1276 : VFPXI<oops, iops, AddrMode4, Size4Bytes, im,
1277 VFPLdStMulFrm, itin, asm, cstr, pattern> {
1278 // Instruction operands.
1282 // Encode instruction operands.
1283 let Inst{19-16} = Rn;
1284 let Inst{22} = regs{12};
1285 let Inst{15-12} = regs{11-8};
1286 let Inst{7-0} = regs{7-0};
1288 // TODO: Mark the instructions with the appropriate subtarget info.
1289 let Inst{27-25} = 0b110;
1290 let Inst{11-9} = 0b101;
1291 let Inst{8} = 1; // Double precision
1294 class AXSI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
1295 string asm, string cstr, list<dag> pattern>
1296 : VFPXI<oops, iops, AddrMode4, Size4Bytes, im,
1297 VFPLdStMulFrm, itin, asm, cstr, pattern> {
1298 // Instruction operands.
1302 // Encode instruction operands.
1303 let Inst{19-16} = Rn;
1304 let Inst{22} = regs{8};
1305 let Inst{15-12} = regs{12-9};
1306 let Inst{7-0} = regs{7-0};
1308 // TODO: Mark the instructions with the appropriate subtarget info.
1309 let Inst{27-25} = 0b110;
1310 let Inst{11-9} = 0b101;
1311 let Inst{8} = 0; // Single precision
1314 // Double precision, unary
1315 class ADuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1316 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1317 string asm, list<dag> pattern>
1318 : VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
1319 // Instruction operands.
1323 // Encode instruction operands.
1324 let Inst{3-0} = Dm{3-0};
1325 let Inst{5} = Dm{4};
1326 let Inst{15-12} = Dd{3-0};
1327 let Inst{22} = Dd{4};
1329 let Inst{27-23} = opcod1;
1330 let Inst{21-20} = opcod2;
1331 let Inst{19-16} = opcod3;
1332 let Inst{11-9} = 0b101;
1333 let Inst{8} = 1; // Double precision
1334 let Inst{7-6} = opcod4;
1335 let Inst{4} = opcod5;
1338 // Double precision, binary
1339 class ADbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1340 dag iops, InstrItinClass itin, string opc, string asm,
1342 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1343 // Instruction operands.
1348 // Encode instruction operands.
1349 let Inst{3-0} = Dm{3-0};
1350 let Inst{5} = Dm{4};
1351 let Inst{19-16} = Dn{3-0};
1352 let Inst{7} = Dn{4};
1353 let Inst{15-12} = Dd{3-0};
1354 let Inst{22} = Dd{4};
1356 let Inst{27-23} = opcod1;
1357 let Inst{21-20} = opcod2;
1358 let Inst{11-9} = 0b101;
1359 let Inst{8} = 1; // Double precision
1364 // Single precision, unary
1365 class ASuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1366 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1367 string asm, list<dag> pattern>
1368 : VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
1369 // Instruction operands.
1373 // Encode instruction operands.
1374 let Inst{3-0} = Sm{4-1};
1375 let Inst{5} = Sm{0};
1376 let Inst{15-12} = Sd{4-1};
1377 let Inst{22} = Sd{0};
1379 let Inst{27-23} = opcod1;
1380 let Inst{21-20} = opcod2;
1381 let Inst{19-16} = opcod3;
1382 let Inst{11-9} = 0b101;
1383 let Inst{8} = 0; // Single precision
1384 let Inst{7-6} = opcod4;
1385 let Inst{4} = opcod5;
1388 // Single precision unary, if no NEON. Same as ASuI except not available if
1390 class ASuIn<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
1391 bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
1392 string asm, list<dag> pattern>
1393 : ASuI<opcod1, opcod2, opcod3, opcod4, opcod5, oops, iops, itin, opc, asm,
1395 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1398 // Single precision, binary
1399 class ASbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops, dag iops,
1400 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1401 : VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
1402 // Instruction operands.
1407 // Encode instruction operands.
1408 let Inst{3-0} = Sm{4-1};
1409 let Inst{5} = Sm{0};
1410 let Inst{19-16} = Sn{4-1};
1411 let Inst{7} = Sn{0};
1412 let Inst{15-12} = Sd{4-1};
1413 let Inst{22} = Sd{0};
1415 let Inst{27-23} = opcod1;
1416 let Inst{21-20} = opcod2;
1417 let Inst{11-9} = 0b101;
1418 let Inst{8} = 0; // Single precision
1423 // Single precision binary, if no NEON. Same as ASbI except not available if
1425 class ASbIn<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
1426 dag iops, InstrItinClass itin, string opc, string asm,
1428 : ASbI<opcod1, opcod2, op6, op4, oops, iops, itin, opc, asm, pattern> {
1429 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1431 // Instruction operands.
1436 // Encode instruction operands.
1437 let Inst{3-0} = Sm{4-1};
1438 let Inst{5} = Sm{0};
1439 let Inst{19-16} = Sn{4-1};
1440 let Inst{7} = Sn{0};
1441 let Inst{15-12} = Sd{4-1};
1442 let Inst{22} = Sd{0};
1445 // VFP conversion instructions
1446 class AVConv1I<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
1447 dag oops, dag iops, InstrItinClass itin, string opc, string asm,
1449 : VFPAI<oops, iops, VFPConv1Frm, itin, opc, asm, pattern> {
1450 let Inst{27-23} = opcod1;
1451 let Inst{21-20} = opcod2;
1452 let Inst{19-16} = opcod3;
1453 let Inst{11-8} = opcod4;
1458 // VFP conversion between floating-point and fixed-point
1459 class AVConv1XI<bits<5> op1, bits<2> op2, bits<4> op3, bits<4> op4, bit op5,
1460 dag oops, dag iops, InstrItinClass itin, string opc, string asm,
1462 : AVConv1I<op1, op2, op3, op4, oops, iops, itin, opc, asm, pattern> {
1463 // size (fixed-point number): sx == 0 ? 16 : 32
1464 let Inst{7} = op5; // sx
1467 // VFP conversion instructions, if no NEON
1468 class AVConv1In<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
1469 dag oops, dag iops, InstrItinClass itin,
1470 string opc, string asm, list<dag> pattern>
1471 : AVConv1I<opcod1, opcod2, opcod3, opcod4, oops, iops, itin, opc, asm,
1473 list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
1476 class AVConvXI<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops, Format f,
1477 InstrItinClass itin,
1478 string opc, string asm, list<dag> pattern>
1479 : VFPAI<oops, iops, f, itin, opc, asm, pattern> {
1480 let Inst{27-20} = opcod1;
1481 let Inst{11-8} = opcod2;
1485 class AVConv2I<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, VFPConv2Frm, itin, opc, asm, pattern>;
1489 class AVConv3I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1490 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1491 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv3Frm, itin, opc, asm, pattern>;
1493 class AVConv4I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1494 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1495 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv4Frm, itin, opc, asm, pattern>;
1497 class AVConv5I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
1498 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1499 : AVConvXI<opcod1, opcod2, oops, iops, VFPConv5Frm, itin, opc, asm, pattern>;
1501 //===----------------------------------------------------------------------===//
1503 //===----------------------------------------------------------------------===//
1504 // ARM NEON Instruction templates.
1507 class NeonI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
1508 InstrItinClass itin, string opc, string dt, string asm, string cstr,
1510 : InstARM<am, Size4Bytes, im, f, NeonDomain, cstr, itin> {
1511 let OutOperandList = oops;
1512 let InOperandList = !con(iops, (ins pred:$p));
1513 let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
1514 let Pattern = pattern;
1515 list<Predicate> Predicates = [HasNEON];
1518 // Same as NeonI except it does not have a "data type" specifier.
1519 class NeonXI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
1520 InstrItinClass itin, string opc, string asm, string cstr,
1522 : InstARM<am, Size4Bytes, im, f, NeonDomain, cstr, itin> {
1523 let OutOperandList = oops;
1524 let InOperandList = !con(iops, (ins pred:$p));
1525 let AsmString = !strconcat(opc, "${p}", "\t", asm);
1526 let Pattern = pattern;
1527 list<Predicate> Predicates = [HasNEON];
1530 class NLdSt<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
1531 dag oops, dag iops, InstrItinClass itin,
1532 string opc, string dt, string asm, string cstr, list<dag> pattern>
1533 : NeonI<oops, iops, AddrMode6, IndexModeNone, NLdStFrm, itin, opc, dt, asm,
1535 let Inst{31-24} = 0b11110100;
1536 let Inst{23} = op23;
1537 let Inst{21-20} = op21_20;
1538 let Inst{11-8} = op11_8;
1539 let Inst{7-4} = op7_4;
1541 let PostEncoderMethod = "NEONThumb2LoadStorePostEncoder";
1547 let Inst{22} = Vd{4};
1548 let Inst{15-12} = Vd{3-0};
1549 let Inst{19-16} = Rn{3-0};
1550 let Inst{3-0} = Rm{3-0};
1553 class NLdStLn<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
1554 dag oops, dag iops, InstrItinClass itin,
1555 string opc, string dt, string asm, string cstr, list<dag> pattern>
1556 : NLdSt<op23, op21_20, op11_8, op7_4, oops, iops, itin, opc,
1557 dt, asm, cstr, pattern> {
1561 class PseudoNLdSt<dag oops, dag iops, InstrItinClass itin, string cstr>
1562 : InstARM<AddrMode6, Size4Bytes, IndexModeNone, Pseudo, NeonDomain, cstr,
1564 let OutOperandList = oops;
1565 let InOperandList = !con(iops, (ins pred:$p));
1566 list<Predicate> Predicates = [HasNEON];
1569 class PseudoNeonI<dag oops, dag iops, InstrItinClass itin, string cstr,
1571 : InstARM<AddrModeNone, Size4Bytes, IndexModeNone, Pseudo, NeonDomain, cstr,
1573 let OutOperandList = oops;
1574 let InOperandList = !con(iops, (ins pred:$p));
1575 let Pattern = pattern;
1576 list<Predicate> Predicates = [HasNEON];
1579 class NDataI<dag oops, dag iops, Format f, InstrItinClass itin,
1580 string opc, string dt, string asm, string cstr, list<dag> pattern>
1581 : NeonI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, dt, asm, cstr,
1583 let Inst{31-25} = 0b1111001;
1584 let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
1587 class NDataXI<dag oops, dag iops, Format f, InstrItinClass itin,
1588 string opc, string asm, string cstr, list<dag> pattern>
1589 : NeonXI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, asm,
1591 let Inst{31-25} = 0b1111001;
1592 let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
1595 // NEON "one register and a modified immediate" format.
1596 class N1ModImm<bit op23, bits<3> op21_19, bits<4> op11_8, bit op7, bit op6,
1598 dag oops, dag iops, InstrItinClass itin,
1599 string opc, string dt, string asm, string cstr,
1601 : NDataI<oops, iops, N1RegModImmFrm, itin, opc, dt, asm, cstr, pattern> {
1602 let Inst{23} = op23;
1603 let Inst{21-19} = op21_19;
1604 let Inst{11-8} = op11_8;
1610 // Instruction operands.
1614 let Inst{15-12} = Vd{3-0};
1615 let Inst{22} = Vd{4};
1616 let Inst{24} = SIMM{7};
1617 let Inst{18-16} = SIMM{6-4};
1618 let Inst{3-0} = SIMM{3-0};
1621 // NEON 2 vector register format.
1622 class N2V<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
1623 bits<5> op11_7, bit op6, bit op4,
1624 dag oops, dag iops, InstrItinClass itin,
1625 string opc, string dt, string asm, string cstr, list<dag> pattern>
1626 : NDataI<oops, iops, N2RegFrm, itin, opc, dt, asm, cstr, pattern> {
1627 let Inst{24-23} = op24_23;
1628 let Inst{21-20} = op21_20;
1629 let Inst{19-18} = op19_18;
1630 let Inst{17-16} = op17_16;
1631 let Inst{11-7} = op11_7;
1635 // Instruction operands.
1639 let Inst{15-12} = Vd{3-0};
1640 let Inst{22} = Vd{4};
1641 let Inst{3-0} = Vm{3-0};
1642 let Inst{5} = Vm{4};
1645 // Same as N2V except it doesn't have a datatype suffix.
1646 class N2VX<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
1647 bits<5> op11_7, bit op6, bit op4,
1648 dag oops, dag iops, InstrItinClass itin,
1649 string opc, string asm, string cstr, list<dag> pattern>
1650 : NDataXI<oops, iops, N2RegFrm, itin, opc, asm, cstr, pattern> {
1651 let Inst{24-23} = op24_23;
1652 let Inst{21-20} = op21_20;
1653 let Inst{19-18} = op19_18;
1654 let Inst{17-16} = op17_16;
1655 let Inst{11-7} = op11_7;
1659 // Instruction operands.
1663 let Inst{15-12} = Vd{3-0};
1664 let Inst{22} = Vd{4};
1665 let Inst{3-0} = Vm{3-0};
1666 let Inst{5} = Vm{4};
1669 // NEON 2 vector register with immediate.
1670 class N2VImm<bit op24, bit op23, bits<4> op11_8, bit op7, bit op6, bit op4,
1671 dag oops, dag iops, Format f, InstrItinClass itin,
1672 string opc, string dt, string asm, string cstr, list<dag> pattern>
1673 : NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1674 let Inst{24} = op24;
1675 let Inst{23} = op23;
1676 let Inst{11-8} = op11_8;
1681 // Instruction operands.
1686 let Inst{15-12} = Vd{3-0};
1687 let Inst{22} = Vd{4};
1688 let Inst{3-0} = Vm{3-0};
1689 let Inst{5} = Vm{4};
1690 let Inst{21-16} = SIMM{5-0};
1693 // NEON 3 vector register format.
1694 class N3V<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6, bit op4,
1695 dag oops, dag iops, Format f, InstrItinClass itin,
1696 string opc, string dt, string asm, string cstr, list<dag> pattern>
1697 : NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
1698 let Inst{24} = op24;
1699 let Inst{23} = op23;
1700 let Inst{21-20} = op21_20;
1701 let Inst{11-8} = op11_8;
1705 // Instruction operands.
1710 let Inst{15-12} = Vd{3-0};
1711 let Inst{22} = Vd{4};
1712 let Inst{19-16} = Vn{3-0};
1713 let Inst{7} = Vn{4};
1714 let Inst{3-0} = Vm{3-0};
1715 let Inst{5} = Vm{4};
1718 // Same as N3V except it doesn't have a data type suffix.
1719 class N3VX<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
1721 dag oops, dag iops, Format f, InstrItinClass itin,
1722 string opc, string asm, string cstr, list<dag> pattern>
1723 : NDataXI<oops, iops, f, itin, opc, asm, cstr, pattern> {
1724 let Inst{24} = op24;
1725 let Inst{23} = op23;
1726 let Inst{21-20} = op21_20;
1727 let Inst{11-8} = op11_8;
1731 // Instruction operands.
1736 let Inst{15-12} = Vd{3-0};
1737 let Inst{22} = Vd{4};
1738 let Inst{19-16} = Vn{3-0};
1739 let Inst{7} = Vn{4};
1740 let Inst{3-0} = Vm{3-0};
1741 let Inst{5} = Vm{4};
1744 // NEON VMOVs between scalar and core registers.
1745 class NVLaneOp<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1746 dag oops, dag iops, Format f, InstrItinClass itin,
1747 string opc, string dt, string asm, list<dag> pattern>
1748 : InstARM<AddrModeNone, Size4Bytes, IndexModeNone, f, NeonDomain,
1750 let Inst{27-20} = opcod1;
1751 let Inst{11-8} = opcod2;
1752 let Inst{6-5} = opcod3;
1755 let OutOperandList = oops;
1756 let InOperandList = !con(iops, (ins pred:$p));
1757 let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
1758 let Pattern = pattern;
1759 list<Predicate> Predicates = [HasNEON];
1761 let PostEncoderMethod = "NEONThumb2DupPostEncoder";
1768 let Inst{31-28} = p{3-0};
1770 let Inst{19-16} = V{3-0};
1771 let Inst{15-12} = R{3-0};
1773 class NVGetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1774 dag oops, dag iops, InstrItinClass itin,
1775 string opc, string dt, string asm, list<dag> pattern>
1776 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NGetLnFrm, itin,
1777 opc, dt, asm, pattern>;
1778 class NVSetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1779 dag oops, dag iops, InstrItinClass itin,
1780 string opc, string dt, string asm, list<dag> pattern>
1781 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NSetLnFrm, itin,
1782 opc, dt, asm, pattern>;
1783 class NVDup<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
1784 dag oops, dag iops, InstrItinClass itin,
1785 string opc, string dt, string asm, list<dag> pattern>
1786 : NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NDupFrm, itin,
1787 opc, dt, asm, pattern>;
1789 // Vector Duplicate Lane (from scalar to all elements)
1790 class NVDupLane<bits<4> op19_16, bit op6, dag oops, dag iops,
1791 InstrItinClass itin, string opc, string dt, string asm,
1793 : NDataI<oops, iops, NVDupLnFrm, itin, opc, dt, asm, "", pattern> {
1794 let Inst{24-23} = 0b11;
1795 let Inst{21-20} = 0b11;
1796 let Inst{19-16} = op19_16;
1797 let Inst{11-7} = 0b11000;
1805 let Inst{22} = Vd{4};
1806 let Inst{15-12} = Vd{3-0};
1807 let Inst{5} = Vm{4};
1808 let Inst{3-0} = Vm{3-0};
1811 // NEONFPPat - Same as Pat<>, but requires that the compiler be using NEON
1812 // for single-precision FP.
1813 class NEONFPPat<dag pattern, dag result> : Pat<pattern, result> {
1814 list<Predicate> Predicates = [HasNEON,UseNEONForFP];