1 //===-- ARMInstrThumb2.td - Thumb2 support for ARM ---------*- tablegen -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 // This file describes the Thumb2 instruction set.
11 //===----------------------------------------------------------------------===//
13 // IT block predicate field
14 def it_pred_asmoperand : AsmOperandClass {
15 let Name = "ITCondCode";
16 let ParserMethod = "parseITCondCode";
18 def it_pred : Operand<i32> {
19 let PrintMethod = "printMandatoryPredicateOperand";
20 let ParserMatchClass = it_pred_asmoperand;
23 // IT block condition mask
24 def it_mask_asmoperand : AsmOperandClass { let Name = "ITMask"; }
25 def it_mask : Operand<i32> {
26 let PrintMethod = "printThumbITMask";
27 let ParserMatchClass = it_mask_asmoperand;
28 let EncoderMethod = "getITMaskOpValue";
31 // t2_shift_imm: An integer that encodes a shift amount and the type of shift
32 // (asr or lsl). The 6-bit immediate encodes as:
35 // {4-0} imm5 shift amount.
36 // asr #32 not allowed
37 def t2_shift_imm : Operand<i32> {
38 let PrintMethod = "printShiftImmOperand";
39 let ParserMatchClass = ShifterImmAsmOperand;
40 let DecoderMethod = "DecodeT2ShifterImmOperand";
43 def mve_shift_imm : AsmOperandClass {
44 let Name = "MVELongShift";
45 let RenderMethod = "addImmOperands";
46 let DiagnosticString = "operand must be an immediate in the range [1,32]";
48 def long_shift : Operand<i32> {
49 let ParserMatchClass = mve_shift_imm;
50 let DecoderMethod = "DecodeLongShiftOperand";
53 // Shifted operands. No register controlled shifts for Thumb2.
54 // Note: We do not support rrx shifted operands yet.
55 def t2_so_reg : Operand<i32>, // reg imm
56 ComplexPattern<i32, 2, "SelectShiftImmShifterOperand",
58 let EncoderMethod = "getT2SORegOpValue";
59 let PrintMethod = "printT2SOOperand";
60 let DecoderMethod = "DecodeSORegImmOperand";
61 let ParserMatchClass = ShiftedImmAsmOperand;
62 let MIOperandInfo = (ops rGPR, i32imm);
65 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
66 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
67 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), SDLoc(N),
71 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
72 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
73 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), SDLoc(N),
77 // so_imm_notSext_XFORM - Return a so_imm value packed into the format
78 // described for so_imm_notSext def below, with sign extension from 16
80 def t2_so_imm_notSext16_XFORM : SDNodeXForm<imm, [{
81 APInt apIntN = N->getAPIntValue();
82 unsigned N16bitSignExt = apIntN.trunc(16).sext(32).getZExtValue();
83 return CurDAG->getTargetConstant(~N16bitSignExt, SDLoc(N), MVT::i32);
86 // t2_so_imm - Match a 32-bit immediate operand, which is an
87 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
88 // immediate splatted into multiple bytes of the word.
89 def t2_so_imm_asmoperand : AsmOperandClass {
91 let RenderMethod = "addImmOperands";
94 def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{
95 return ARM_AM::getT2SOImmVal(Imm) != -1;
97 let ParserMatchClass = t2_so_imm_asmoperand;
98 let EncoderMethod = "getT2SOImmOpValue";
99 let DecoderMethod = "DecodeT2SOImm";
102 // t2_so_imm_not - Match an immediate that is a complement
104 // Note: this pattern doesn't require an encoder method and such, as it's
105 // only used on aliases (Pat<> and InstAlias<>). The actual encoding
106 // is handled by the destination instructions, which use t2_so_imm.
107 def t2_so_imm_not_asmoperand : AsmOperandClass { let Name = "T2SOImmNot"; }
108 def t2_so_imm_not : Operand<i32>, PatLeaf<(imm), [{
109 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
110 }], t2_so_imm_not_XFORM> {
111 let ParserMatchClass = t2_so_imm_not_asmoperand;
114 // t2_so_imm_notSext - match an immediate that is a complement of a t2_so_imm
115 // if the upper 16 bits are zero.
116 def t2_so_imm_notSext : Operand<i32>, PatLeaf<(imm), [{
117 APInt apIntN = N->getAPIntValue();
118 if (!apIntN.isIntN(16)) return false;
119 unsigned N16bitSignExt = apIntN.trunc(16).sext(32).getZExtValue();
120 return ARM_AM::getT2SOImmVal(~N16bitSignExt) != -1;
121 }], t2_so_imm_notSext16_XFORM> {
122 let ParserMatchClass = t2_so_imm_not_asmoperand;
125 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
126 def t2_so_imm_neg_asmoperand : AsmOperandClass { let Name = "T2SOImmNeg"; }
127 def t2_so_imm_neg : Operand<i32>, ImmLeaf<i32, [{
128 return Imm && ARM_AM::getT2SOImmVal(-(uint32_t)Imm) != -1;
129 }], t2_so_imm_neg_XFORM> {
130 let ParserMatchClass = t2_so_imm_neg_asmoperand;
133 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0,4095].
134 def imm0_4095_asmoperand: ImmAsmOperand<0,4095> { let Name = "Imm0_4095"; }
135 def imm0_4095 : Operand<i32>, ImmLeaf<i32, [{
136 return Imm >= 0 && Imm < 4096;
138 let ParserMatchClass = imm0_4095_asmoperand;
141 def imm0_4095_neg_asmoperand: AsmOperandClass { let Name = "Imm0_4095Neg"; }
142 def imm0_4095_neg : Operand<i32>, PatLeaf<(i32 imm), [{
143 return (uint32_t)(-N->getZExtValue()) < 4096;
145 let ParserMatchClass = imm0_4095_neg_asmoperand;
148 def imm1_255_neg : PatLeaf<(i32 imm), [{
149 uint32_t Val = -N->getZExtValue();
150 return (Val > 0 && Val < 255);
153 def imm0_255_not : PatLeaf<(i32 imm), [{
154 return (uint32_t)(~N->getZExtValue()) < 255;
157 def lo5AllOne : PatLeaf<(i32 imm), [{
158 // Returns true if all low 5-bits are 1.
159 return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL;
162 // Define Thumb2 specific addressing modes.
164 // t2_addr_offset_none := reg
165 def MemNoOffsetT2AsmOperand
166 : AsmOperandClass { let Name = "MemNoOffsetT2"; }
167 def t2_addr_offset_none : MemOperand {
168 let PrintMethod = "printAddrMode7Operand";
169 let DecoderMethod = "DecodeGPRnopcRegisterClass";
170 let ParserMatchClass = MemNoOffsetT2AsmOperand;
171 let MIOperandInfo = (ops GPRnopc:$base);
174 // t2_nosp_addr_offset_none := reg
175 def MemNoOffsetT2NoSpAsmOperand
176 : AsmOperandClass { let Name = "MemNoOffsetT2NoSp"; }
177 def t2_nosp_addr_offset_none : MemOperand {
178 let PrintMethod = "printAddrMode7Operand";
179 let DecoderMethod = "DecoderGPRRegisterClass";
180 let ParserMatchClass = MemNoOffsetT2NoSpAsmOperand;
181 let MIOperandInfo = (ops rGPR:$base);
184 // t2addrmode_imm12 := reg + imm12
185 def t2addrmode_imm12_asmoperand : AsmOperandClass {let Name="MemUImm12Offset";}
186 def t2addrmode_imm12 : MemOperand,
187 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
188 let PrintMethod = "printAddrModeImm12Operand<false>";
189 let EncoderMethod = "getAddrModeImm12OpValue";
190 let DecoderMethod = "DecodeT2AddrModeImm12";
191 let ParserMatchClass = t2addrmode_imm12_asmoperand;
192 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
195 // t2ldrlabel := imm12
196 def t2ldrlabel : Operand<i32> {
197 let EncoderMethod = "getAddrModeImm12OpValue";
198 let PrintMethod = "printThumbLdrLabelOperand";
201 def t2ldr_pcrel_imm12_asmoperand : AsmOperandClass {let Name = "MemPCRelImm12";}
202 def t2ldr_pcrel_imm12 : Operand<i32> {
203 let ParserMatchClass = t2ldr_pcrel_imm12_asmoperand;
204 // used for assembler pseudo instruction and maps to t2ldrlabel, so
205 // doesn't need encoder or print methods of its own.
208 // ADR instruction labels.
209 def t2adrlabel : Operand<i32> {
210 let EncoderMethod = "getT2AdrLabelOpValue";
211 let PrintMethod = "printAdrLabelOperand<0>";
214 // t2addrmode_posimm8 := reg + imm8
215 def MemPosImm8OffsetAsmOperand : AsmOperandClass {
216 let Name="MemPosImm8Offset";
217 let RenderMethod = "addMemImmOffsetOperands";
219 def t2addrmode_posimm8 : MemOperand {
220 let PrintMethod = "printT2AddrModeImm8Operand<false>";
221 let EncoderMethod = "getT2AddrModeImmOpValue<8,0>";
222 let DecoderMethod = "DecodeT2AddrModeImm8";
223 let ParserMatchClass = MemPosImm8OffsetAsmOperand;
224 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
227 // t2addrmode_negimm8 := reg - imm8
228 def MemNegImm8OffsetAsmOperand : AsmOperandClass {
229 let Name="MemNegImm8Offset";
230 let RenderMethod = "addMemImmOffsetOperands";
232 def t2addrmode_negimm8 : MemOperand,
233 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
234 let PrintMethod = "printT2AddrModeImm8Operand<false>";
235 let EncoderMethod = "getT2AddrModeImmOpValue<8,0>";
236 let DecoderMethod = "DecodeT2AddrModeImm8";
237 let ParserMatchClass = MemNegImm8OffsetAsmOperand;
238 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
241 // t2addrmode_imm8 := reg +/- imm8
242 def MemImm8OffsetAsmOperand : AsmOperandClass {
243 let Name = "MemImm8Offset";
244 let RenderMethod = "addMemImmOffsetOperands";
246 class T2AddrMode_Imm8 : MemOperand,
247 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
248 let EncoderMethod = "getT2AddrModeImmOpValue<8,0>";
249 let DecoderMethod = "DecodeT2AddrModeImm8";
250 let ParserMatchClass = MemImm8OffsetAsmOperand;
251 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
254 def t2addrmode_imm8 : T2AddrMode_Imm8 {
255 let PrintMethod = "printT2AddrModeImm8Operand<false>";
258 def t2addrmode_imm8_pre : T2AddrMode_Imm8 {
259 let PrintMethod = "printT2AddrModeImm8Operand<true>";
262 def t2am_imm8_offset : MemOperand,
263 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
264 [], [SDNPWantRoot]> {
265 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
266 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
267 let DecoderMethod = "DecodeT2Imm8";
270 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
271 def MemImm8s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm8s4Offset";}
272 class T2AddrMode_Imm8s4 : MemOperand {
273 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
274 let DecoderMethod = "DecodeT2AddrModeImm8s4";
275 let ParserMatchClass = MemImm8s4OffsetAsmOperand;
276 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
279 def t2addrmode_imm8s4 : T2AddrMode_Imm8s4 {
280 let PrintMethod = "printT2AddrModeImm8s4Operand<false>";
283 def t2addrmode_imm8s4_pre : T2AddrMode_Imm8s4 {
284 let PrintMethod = "printT2AddrModeImm8s4Operand<true>";
287 def t2am_imm8s4_offset_asmoperand : AsmOperandClass { let Name = "Imm8s4"; }
288 def t2am_imm8s4_offset : MemOperand {
289 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
290 let EncoderMethod = "getT2ScaledImmOpValue<8,2>";
291 let DecoderMethod = "DecodeT2Imm8S4";
294 // t2addrmode_imm7s4 := reg +/- (imm7 << 2)
295 def MemImm7s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm7s4Offset";}
296 class T2AddrMode_Imm7s4 : MemOperand {
297 let EncoderMethod = "getT2AddrModeImm7s4OpValue";
298 let DecoderMethod = "DecodeT2AddrModeImm7<2,0>";
299 let ParserMatchClass = MemImm7s4OffsetAsmOperand;
300 let MIOperandInfo = (ops GPRnopc:$base, i32imm:$offsimm);
303 def t2addrmode_imm7s4 : T2AddrMode_Imm7s4 {
304 // They are printed the same way as the imm8 version
305 let PrintMethod = "printT2AddrModeImm8s4Operand<false>";
308 def t2addrmode_imm7s4_pre : T2AddrMode_Imm7s4 {
309 // They are printed the same way as the imm8 version
310 let PrintMethod = "printT2AddrModeImm8s4Operand<true>";
313 def t2am_imm7s4_offset_asmoperand : AsmOperandClass { let Name = "Imm7s4"; }
314 def t2am_imm7s4_offset : MemOperand {
315 // They are printed the same way as the imm8 version
316 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
317 let ParserMatchClass = t2am_imm7s4_offset_asmoperand;
318 let EncoderMethod = "getT2ScaledImmOpValue<7,2>";
319 let DecoderMethod = "DecodeT2Imm7S4";
322 // t2addrmode_imm0_1020s4 := reg + (imm8 << 2)
323 def MemImm0_1020s4OffsetAsmOperand : AsmOperandClass {
324 let Name = "MemImm0_1020s4Offset";
326 def t2addrmode_imm0_1020s4 : MemOperand,
327 ComplexPattern<i32, 2, "SelectT2AddrModeExclusive"> {
328 let PrintMethod = "printT2AddrModeImm0_1020s4Operand";
329 let EncoderMethod = "getT2AddrModeImm0_1020s4OpValue";
330 let DecoderMethod = "DecodeT2AddrModeImm0_1020s4";
331 let ParserMatchClass = MemImm0_1020s4OffsetAsmOperand;
332 let MIOperandInfo = (ops GPRnopc:$base, i32imm:$offsimm);
335 // t2addrmode_so_reg := reg + (reg << imm2)
336 def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";}
337 def t2addrmode_so_reg : MemOperand,
338 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
339 let PrintMethod = "printT2AddrModeSoRegOperand";
340 let EncoderMethod = "getT2AddrModeSORegOpValue";
341 let DecoderMethod = "DecodeT2AddrModeSOReg";
342 let ParserMatchClass = t2addrmode_so_reg_asmoperand;
343 let MIOperandInfo = (ops GPRnopc:$base, rGPR:$offsreg, i32imm:$offsimm);
346 // Addresses for the TBB/TBH instructions.
347 def addrmode_tbb_asmoperand : AsmOperandClass { let Name = "MemTBB"; }
348 def addrmode_tbb : MemOperand {
349 let PrintMethod = "printAddrModeTBB";
350 let ParserMatchClass = addrmode_tbb_asmoperand;
351 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
353 def addrmode_tbh_asmoperand : AsmOperandClass { let Name = "MemTBH"; }
354 def addrmode_tbh : MemOperand {
355 let PrintMethod = "printAddrModeTBH";
356 let ParserMatchClass = addrmode_tbh_asmoperand;
357 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
360 // Define ARMv8.1-M specific addressing modes.
362 // Label operands for BF/BFL/WLS/DLS/LE
363 class BFLabelOp<string signed, string isNeg, string zeroPermitted, string size,
366 let EncoderMethod = !strconcat("getBFTargetOpValue<", isNeg, ", ",
368 let OperandType = "OPERAND_PCREL";
369 let DecoderMethod = !strconcat("DecodeBFLabelOperand<", signed, ", ",
370 isNeg, ", ", zeroPermitted, ", ", size, ">");
372 def bflabel_u4 : BFLabelOp<"false", "false", "false", "4", "ARM::fixup_bf_branch">;
373 def bflabel_s12 : BFLabelOp<"true", "false", "true", "12", "ARM::fixup_bfc_target">;
374 def bflabel_s16 : BFLabelOp<"true", "false", "true", "16", "ARM::fixup_bf_target">;
375 def bflabel_s18 : BFLabelOp<"true", "false", "true", "18", "ARM::fixup_bfl_target">;
377 def wlslabel_u11_asmoperand : AsmOperandClass {
378 let Name = "WLSLabel";
379 let RenderMethod = "addImmOperands";
380 let PredicateMethod = "isUnsignedOffset<11, 1>";
381 let DiagnosticString =
382 "loop end is out of range or not a positive multiple of 2";
384 def wlslabel_u11 : BFLabelOp<"false", "false", "true", "11", "ARM::fixup_wls"> {
385 let ParserMatchClass = wlslabel_u11_asmoperand;
387 def lelabel_u11_asmoperand : AsmOperandClass {
388 let Name = "LELabel";
389 let RenderMethod = "addImmOperands";
390 let PredicateMethod = "isLEOffset";
391 let DiagnosticString =
392 "loop start is out of range or not a negative multiple of 2";
394 def lelabel_u11 : BFLabelOp<"false", "true", "true", "11", "ARM::fixup_le"> {
395 let ParserMatchClass = lelabel_u11_asmoperand;
398 def bfafter_target : Operand<OtherVT> {
399 let EncoderMethod = "getBFAfterTargetOpValue";
400 let OperandType = "OPERAND_PCREL";
401 let DecoderMethod = "DecodeBFAfterTargetOperand";
404 // pred operand excluding AL
405 def pred_noal_asmoperand : AsmOperandClass {
406 let Name = "CondCodeNoAL";
407 let RenderMethod = "addITCondCodeOperands";
408 let PredicateMethod = "isITCondCodeNoAL";
409 let ParserMethod = "parseITCondCode";
411 def pred_noal : Operand<i32> {
412 let PrintMethod = "printMandatoryPredicateOperand";
413 let ParserMatchClass = pred_noal_asmoperand;
414 let DecoderMethod = "DecodePredNoALOperand";
418 // CSEL aliases inverted predicate
419 def pred_noal_inv_asmoperand : AsmOperandClass {
420 let Name = "CondCodeNoALInv";
421 let RenderMethod = "addITCondCodeInvOperands";
422 let PredicateMethod = "isITCondCodeNoAL";
423 let ParserMethod = "parseITCondCode";
425 def pred_noal_inv : Operand<i32> {
426 let PrintMethod = "printMandatoryInvertedPredicateOperand";
427 let ParserMatchClass = pred_noal_inv_asmoperand;
429 //===----------------------------------------------------------------------===//
430 // Multiclass helpers...
434 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
435 string opc, string asm, list<dag> pattern>
436 : T2I<oops, iops, itin, opc, asm, pattern> {
441 let Inst{26} = imm{11};
442 let Inst{14-12} = imm{10-8};
443 let Inst{7-0} = imm{7-0};
447 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
448 string opc, string asm, list<dag> pattern>
449 : T2sI<oops, iops, itin, opc, asm, pattern> {
455 let Inst{26} = imm{11};
456 let Inst{14-12} = imm{10-8};
457 let Inst{7-0} = imm{7-0};
460 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
461 string opc, string asm, list<dag> pattern>
462 : T2I<oops, iops, itin, opc, asm, pattern> {
466 let Inst{19-16} = Rn;
467 let Inst{26} = imm{11};
468 let Inst{14-12} = imm{10-8};
469 let Inst{7-0} = imm{7-0};
473 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
474 string opc, string asm, list<dag> pattern>
475 : T2I<oops, iops, itin, opc, asm, pattern> {
480 let Inst{3-0} = ShiftedRm{3-0};
481 let Inst{5-4} = ShiftedRm{6-5};
482 let Inst{14-12} = ShiftedRm{11-9};
483 let Inst{7-6} = ShiftedRm{8-7};
486 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
487 string opc, string asm, list<dag> pattern>
488 : T2sI<oops, iops, itin, opc, asm, pattern> {
493 let Inst{3-0} = ShiftedRm{3-0};
494 let Inst{5-4} = ShiftedRm{6-5};
495 let Inst{14-12} = ShiftedRm{11-9};
496 let Inst{7-6} = ShiftedRm{8-7};
499 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
500 string opc, string asm, list<dag> pattern>
501 : T2I<oops, iops, itin, opc, asm, pattern> {
505 let Inst{19-16} = Rn;
506 let Inst{3-0} = ShiftedRm{3-0};
507 let Inst{5-4} = ShiftedRm{6-5};
508 let Inst{14-12} = ShiftedRm{11-9};
509 let Inst{7-6} = ShiftedRm{8-7};
512 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
513 string opc, string asm, list<dag> pattern>
514 : T2I<oops, iops, itin, opc, asm, pattern> {
522 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
523 string opc, string asm, list<dag> pattern>
524 : T2sI<oops, iops, itin, opc, asm, pattern> {
532 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
533 string opc, string asm, list<dag> pattern>
534 : T2I<oops, iops, itin, opc, asm, pattern> {
538 let Inst{19-16} = Rn;
543 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
544 string opc, string asm, list<dag> pattern>
545 : T2I<oops, iops, itin, opc, asm, pattern> {
551 let Inst{19-16} = Rn;
552 let Inst{26} = imm{11};
553 let Inst{14-12} = imm{10-8};
554 let Inst{7-0} = imm{7-0};
557 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
558 string opc, string asm, list<dag> pattern>
559 : T2sI<oops, iops, itin, opc, asm, pattern> {
565 let Inst{19-16} = Rn;
566 let Inst{26} = imm{11};
567 let Inst{14-12} = imm{10-8};
568 let Inst{7-0} = imm{7-0};
571 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
572 string opc, string asm, list<dag> pattern>
573 : T2I<oops, iops, itin, opc, asm, pattern> {
580 let Inst{14-12} = imm{4-2};
581 let Inst{7-6} = imm{1-0};
584 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
585 string opc, string asm, list<dag> pattern>
586 : T2sI<oops, iops, itin, opc, asm, pattern> {
593 let Inst{14-12} = imm{4-2};
594 let Inst{7-6} = imm{1-0};
597 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
598 string opc, string asm, list<dag> pattern>
599 : T2I<oops, iops, itin, opc, asm, pattern> {
605 let Inst{19-16} = Rn;
609 class T2ThreeRegNoP<dag oops, dag iops, InstrItinClass itin,
610 string asm, list<dag> pattern>
611 : T2XI<oops, iops, itin, asm, pattern> {
617 let Inst{19-16} = Rn;
621 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
622 string opc, string asm, list<dag> pattern>
623 : T2sI<oops, iops, itin, opc, asm, pattern> {
629 let Inst{19-16} = Rn;
633 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
634 string opc, string asm, list<dag> pattern>
635 : T2I<oops, iops, itin, opc, asm, pattern> {
641 let Inst{19-16} = Rn;
642 let Inst{3-0} = ShiftedRm{3-0};
643 let Inst{5-4} = ShiftedRm{6-5};
644 let Inst{14-12} = ShiftedRm{11-9};
645 let Inst{7-6} = ShiftedRm{8-7};
648 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
649 string opc, string asm, list<dag> pattern>
650 : T2sI<oops, iops, itin, opc, asm, pattern> {
656 let Inst{19-16} = Rn;
657 let Inst{3-0} = ShiftedRm{3-0};
658 let Inst{5-4} = ShiftedRm{6-5};
659 let Inst{14-12} = ShiftedRm{11-9};
660 let Inst{7-6} = ShiftedRm{8-7};
663 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
664 string opc, string asm, list<dag> pattern>
665 : T2I<oops, iops, itin, opc, asm, pattern> {
671 let Inst{19-16} = Rn;
672 let Inst{15-12} = Ra;
677 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
678 string opc, list<dag> pattern>
679 : T2I<(outs rGPR:$RdLo, rGPR:$RdHi), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
680 opc, "\t$RdLo, $RdHi, $Rn, $Rm", pattern>,
681 Sched<[WriteMUL64Lo, WriteMUL64Hi, ReadMUL, ReadMUL]> {
687 let Inst{31-23} = 0b111110111;
688 let Inst{22-20} = opc22_20;
689 let Inst{19-16} = Rn;
690 let Inst{15-12} = RdLo;
691 let Inst{11-8} = RdHi;
692 let Inst{7-4} = opc7_4;
695 class T2MlaLong<bits<3> opc22_20, bits<4> opc7_4, string opc>
696 : T2I<(outs rGPR:$RdLo, rGPR:$RdHi),
697 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi), IIC_iMAC64,
698 opc, "\t$RdLo, $RdHi, $Rn, $Rm", []>,
699 RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">,
700 Sched<[WriteMAC64Lo, WriteMAC64Hi, ReadMUL, ReadMUL, ReadMAC, ReadMAC]> {
706 let Inst{31-23} = 0b111110111;
707 let Inst{22-20} = opc22_20;
708 let Inst{19-16} = Rn;
709 let Inst{15-12} = RdLo;
710 let Inst{11-8} = RdHi;
711 let Inst{7-4} = opc7_4;
716 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
717 /// binary operation that produces a value. These are predicable and can be
718 /// changed to modify CPSR.
719 multiclass T2I_bin_irs<bits<4> opcod, string opc,
720 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
721 SDPatternOperator opnode, bit Commutable = 0,
724 def ri : T2sTwoRegImm<
725 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
726 opc, "\t$Rd, $Rn, $imm",
727 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
728 Sched<[WriteALU, ReadALU]> {
729 let Inst{31-27} = 0b11110;
731 let Inst{24-21} = opcod;
735 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
736 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
737 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
738 Sched<[WriteALU, ReadALU, ReadALU]> {
739 let isCommutable = Commutable;
740 let Inst{31-27} = 0b11101;
741 let Inst{26-25} = 0b01;
742 let Inst{24-21} = opcod;
744 // In most of these instructions, and most versions of the Arm
745 // architecture, bit 15 of this encoding is listed as (0) rather
746 // than 0, i.e. setting it to 1 is UNPREDICTABLE or a soft-fail
747 // rather than a hard failure. In v8.1-M, this requirement is
748 // upgraded to a hard one for ORR, so that the encodings with 1
749 // in this bit can be reused for other instructions (such as
750 // CSEL). Setting Unpredictable{15} = 1 here would reintroduce
751 // that encoding clash in the auto- generated MC decoder, so I
753 let Unpredictable{15} = !if(!eq(opcod, 0b0010), 0b0, 0b1);
754 let Inst{14-12} = 0b000; // imm3
755 let Inst{7-6} = 0b00; // imm2
756 let Inst{5-4} = 0b00; // type
759 def rs : T2sTwoRegShiftedReg<
760 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
761 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
762 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
763 Sched<[WriteALUsi, ReadALU]> {
764 let Inst{31-27} = 0b11101;
765 let Inst{26-25} = 0b01;
766 let Inst{24-21} = opcod;
768 let Unpredictable{15} = !if(!eq(opcod, 0b0010), 0b0, 0b1); // see above
770 // Assembly aliases for optional destination operand when it's the same
771 // as the source operand.
772 def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
773 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn,
774 t2_so_imm:$imm, pred:$p,
776 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
777 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn,
780 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
781 (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn,
782 t2_so_reg:$shift, pred:$p,
786 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
787 // the ".w" suffix to indicate that they are wide.
788 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
789 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
790 SDPatternOperator opnode, bit Commutable = 0> :
791 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w"> {
792 // Assembler aliases w/ the ".w" suffix.
793 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rd, $Rn, $imm"),
794 (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p,
796 // Assembler aliases w/o the ".w" suffix.
797 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
798 (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
800 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"),
801 (!cast<Instruction>(NAME#"rs") rGPR:$Rd, rGPR:$Rn, t2_so_reg:$shift,
802 pred:$p, cc_out:$s)>;
804 // and with the optional destination operand, too.
805 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rdn, $imm"),
806 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm,
807 pred:$p, cc_out:$s)>;
808 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
809 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
811 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"),
812 (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$shift,
813 pred:$p, cc_out:$s)>;
816 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
817 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
818 /// it is equivalent to the T2I_bin_irs counterpart.
819 multiclass T2I_rbin_irs<bits<4> opcod, string opc, SDNode opnode> {
821 def ri : T2sTwoRegImm<
822 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
823 opc, ".w\t$Rd, $Rn, $imm",
824 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]>,
825 Sched<[WriteALU, ReadALU]> {
826 let Inst{31-27} = 0b11110;
828 let Inst{24-21} = opcod;
832 def rr : T2sThreeReg<
833 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
834 opc, "\t$Rd, $Rn, $Rm",
835 [/* For disassembly only; pattern left blank */]>,
836 Sched<[WriteALU, ReadALU, ReadALU]> {
837 let Inst{31-27} = 0b11101;
838 let Inst{26-25} = 0b01;
839 let Inst{24-21} = opcod;
840 let Inst{14-12} = 0b000; // imm3
841 let Inst{7-6} = 0b00; // imm2
842 let Inst{5-4} = 0b00; // type
845 def rs : T2sTwoRegShiftedReg<
846 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
847 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
848 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]>,
849 Sched<[WriteALUsi, ReadALU]> {
850 let Inst{31-27} = 0b11101;
851 let Inst{26-25} = 0b01;
852 let Inst{24-21} = opcod;
856 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
857 /// instruction modifies the CPSR register.
859 /// These opcodes will be converted to the real non-S opcodes by
860 /// AdjustInstrPostInstrSelection after giving then an optional CPSR operand.
861 let hasPostISelHook = 1, Defs = [CPSR] in {
862 multiclass T2I_bin_s_irs<InstrItinClass iii, InstrItinClass iir,
863 InstrItinClass iis, SDNode opnode,
864 bit Commutable = 0> {
866 def ri : t2PseudoInst<(outs rGPR:$Rd),
867 (ins GPRnopc:$Rn, t2_so_imm:$imm, pred:$p),
869 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
871 Sched<[WriteALU, ReadALU]>;
873 def rr : t2PseudoInst<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm, pred:$p),
875 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
877 Sched<[WriteALU, ReadALU, ReadALU]> {
878 let isCommutable = Commutable;
881 def rs : t2PseudoInst<(outs rGPR:$Rd),
882 (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
884 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
885 t2_so_reg:$ShiftedRm))]>,
886 Sched<[WriteALUsi, ReadALUsr]>;
890 /// T2I_rbin_s_is - Same as T2I_bin_s_irs, except selection DAG
891 /// operands are reversed.
892 let hasPostISelHook = 1, Defs = [CPSR] in {
893 multiclass T2I_rbin_s_is<SDNode opnode> {
895 def ri : t2PseudoInst<(outs rGPR:$Rd),
896 (ins rGPR:$Rn, t2_so_imm:$imm, pred:$p),
898 [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm,
900 Sched<[WriteALU, ReadALU]>;
902 def rs : t2PseudoInst<(outs rGPR:$Rd),
903 (ins rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
905 [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm,
907 Sched<[WriteALUsi, ReadALU]>;
911 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
912 /// patterns for a binary operation that produces a value.
913 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, SDNode opnode,
914 bit Commutable = 0> {
916 // The register-immediate version is re-materializable. This is useful
917 // in particular for taking the address of a local.
918 let isReMaterializable = 1 in {
919 def ri : T2sTwoRegImm<
920 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
921 opc, ".w\t$Rd, $Rn, $imm",
922 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]>,
923 Sched<[WriteALU, ReadALU]> {
924 let Inst{31-27} = 0b11110;
927 let Inst{23-21} = op23_21;
933 (outs GPRnopc:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
934 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
935 [(set GPRnopc:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]>,
936 Sched<[WriteALU, ReadALU]> {
940 let Inst{31-27} = 0b11110;
941 let Inst{26} = imm{11};
942 let Inst{25-24} = 0b10;
943 let Inst{23-21} = op23_21;
944 let Inst{20} = 0; // The S bit.
945 let Inst{19-16} = Rn;
947 let Inst{14-12} = imm{10-8};
949 let Inst{7-0} = imm{7-0};
952 def rr : T2sThreeReg<(outs GPRnopc:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm),
953 IIC_iALUr, opc, ".w\t$Rd, $Rn, $Rm",
954 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]>,
955 Sched<[WriteALU, ReadALU, ReadALU]> {
956 let isCommutable = Commutable;
957 let Inst{31-27} = 0b11101;
958 let Inst{26-25} = 0b01;
960 let Inst{23-21} = op23_21;
961 let Inst{14-12} = 0b000; // imm3
962 let Inst{7-6} = 0b00; // imm2
963 let Inst{5-4} = 0b00; // type
966 def rs : T2sTwoRegShiftedReg<
967 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
968 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
969 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]>,
970 Sched<[WriteALUsi, ReadALU]> {
971 let Inst{31-27} = 0b11101;
972 let Inst{26-25} = 0b01;
974 let Inst{23-21} = op23_21;
978 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
979 /// for a binary operation that produces a value and use the carry
980 /// bit. It's not predicable.
981 let Defs = [CPSR], Uses = [CPSR] in {
982 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, SDNode opnode,
983 bit Commutable = 0> {
985 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
986 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
987 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_imm:$imm, CPSR))]>,
988 Requires<[IsThumb2]>, Sched<[WriteALU, ReadALU]> {
989 let Inst{31-27} = 0b11110;
991 let Inst{24-21} = opcod;
995 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
996 opc, ".w\t$Rd, $Rn, $Rm",
997 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, rGPR:$Rm, CPSR))]>,
998 Requires<[IsThumb2]>, Sched<[WriteALU, ReadALU, ReadALU]> {
999 let isCommutable = Commutable;
1000 let Inst{31-27} = 0b11101;
1001 let Inst{26-25} = 0b01;
1002 let Inst{24-21} = opcod;
1003 let Inst{14-12} = 0b000; // imm3
1004 let Inst{7-6} = 0b00; // imm2
1005 let Inst{5-4} = 0b00; // type
1008 def rs : T2sTwoRegShiftedReg<
1009 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
1010 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
1011 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm, CPSR))]>,
1012 Requires<[IsThumb2]>, Sched<[WriteALUsi, ReadALU]> {
1013 let Inst{31-27} = 0b11101;
1014 let Inst{26-25} = 0b01;
1015 let Inst{24-21} = opcod;
1020 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
1021 // rotate operation that produces a value.
1022 multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, SDNode opnode> {
1024 def ri : T2sTwoRegShiftImm<
1025 (outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi,
1026 opc, ".w\t$Rd, $Rm, $imm",
1027 [(set rGPR:$Rd, (opnode rGPR:$Rm, (i32 ty:$imm)))]>,
1029 let Inst{31-27} = 0b11101;
1030 let Inst{26-21} = 0b010010;
1031 let Inst{19-16} = 0b1111; // Rn
1033 let Inst{5-4} = opcod;
1036 def rr : T2sThreeReg<
1037 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
1038 opc, ".w\t$Rd, $Rn, $Rm",
1039 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
1041 let Inst{31-27} = 0b11111;
1042 let Inst{26-23} = 0b0100;
1043 let Inst{22-21} = opcod;
1044 let Inst{15-12} = 0b1111;
1045 let Inst{7-4} = 0b0000;
1048 // Optional destination register
1049 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"),
1050 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
1052 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"),
1053 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
1056 // Assembler aliases w/o the ".w" suffix.
1057 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"),
1058 (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, ty:$imm, pred:$p,
1060 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
1061 (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
1064 // and with the optional destination operand, too.
1065 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"),
1066 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
1068 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
1069 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
1073 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
1074 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
1075 /// a explicit result, only implicitly set CPSR.
1076 multiclass T2I_cmp_irs<bits<4> opcod, string opc, RegisterClass LHSGPR,
1077 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
1078 SDPatternOperator opnode> {
1079 let isCompare = 1, Defs = [CPSR] in {
1081 def ri : T2OneRegCmpImm<
1082 (outs), (ins LHSGPR:$Rn, t2_so_imm:$imm), iii,
1083 opc, ".w\t$Rn, $imm",
1084 [(opnode LHSGPR:$Rn, t2_so_imm:$imm)]>, Sched<[WriteCMP]> {
1085 let Inst{31-27} = 0b11110;
1087 let Inst{24-21} = opcod;
1088 let Inst{20} = 1; // The S bit.
1090 let Inst{11-8} = 0b1111; // Rd
1093 def rr : T2TwoRegCmp<
1094 (outs), (ins LHSGPR:$Rn, rGPR:$Rm), iir,
1095 opc, ".w\t$Rn, $Rm",
1096 [(opnode LHSGPR:$Rn, rGPR:$Rm)]>, Sched<[WriteCMP]> {
1097 let Inst{31-27} = 0b11101;
1098 let Inst{26-25} = 0b01;
1099 let Inst{24-21} = opcod;
1100 let Inst{20} = 1; // The S bit.
1101 let Inst{14-12} = 0b000; // imm3
1102 let Inst{11-8} = 0b1111; // Rd
1103 let Inst{7-6} = 0b00; // imm2
1104 let Inst{5-4} = 0b00; // type
1107 def rs : T2OneRegCmpShiftedReg<
1108 (outs), (ins LHSGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
1109 opc, ".w\t$Rn, $ShiftedRm",
1110 [(opnode LHSGPR:$Rn, t2_so_reg:$ShiftedRm)]>,
1111 Sched<[WriteCMPsi]> {
1112 let Inst{31-27} = 0b11101;
1113 let Inst{26-25} = 0b01;
1114 let Inst{24-21} = opcod;
1115 let Inst{20} = 1; // The S bit.
1116 let Inst{11-8} = 0b1111; // Rd
1120 // Assembler aliases w/o the ".w" suffix.
1121 // No alias here for 'rr' version as not all instantiations of this
1122 // multiclass want one (CMP in particular, does not).
1123 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"),
1124 (!cast<Instruction>(NAME#"ri") LHSGPR:$Rn, t2_so_imm:$imm, pred:$p)>;
1125 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"),
1126 (!cast<Instruction>(NAME#"rs") LHSGPR:$Rn, t2_so_reg:$shift, pred:$p)>;
1129 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
1130 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
1131 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
1133 def i12 : T2Ii12<(outs target:$Rt), (ins t2addrmode_imm12:$addr), iii,
1134 opc, ".w\t$Rt, $addr",
1135 [(set target:$Rt, (opnode t2addrmode_imm12:$addr))]>,
1139 let Inst{31-25} = 0b1111100;
1140 let Inst{24} = signed;
1142 let Inst{22-21} = opcod;
1143 let Inst{20} = 1; // load
1144 let Inst{19-16} = addr{16-13}; // Rn
1145 let Inst{15-12} = Rt;
1146 let Inst{11-0} = addr{11-0}; // imm
1148 let DecoderMethod = "DecodeT2LoadImm12";
1150 def i8 : T2Ii8 <(outs target:$Rt), (ins t2addrmode_negimm8:$addr), iii,
1151 opc, "\t$Rt, $addr",
1152 [(set target:$Rt, (opnode t2addrmode_negimm8:$addr))]>,
1156 let Inst{31-27} = 0b11111;
1157 let Inst{26-25} = 0b00;
1158 let Inst{24} = signed;
1160 let Inst{22-21} = opcod;
1161 let Inst{20} = 1; // load
1162 let Inst{19-16} = addr{12-9}; // Rn
1163 let Inst{15-12} = Rt;
1165 // Offset: index==TRUE, wback==FALSE
1166 let Inst{10} = 1; // The P bit.
1167 let Inst{9} = addr{8}; // U
1168 let Inst{8} = 0; // The W bit.
1169 let Inst{7-0} = addr{7-0}; // imm
1171 let DecoderMethod = "DecodeT2LoadImm8";
1173 def s : T2Iso <(outs target:$Rt), (ins t2addrmode_so_reg:$addr), iis,
1174 opc, ".w\t$Rt, $addr",
1175 [(set target:$Rt, (opnode t2addrmode_so_reg:$addr))]>,
1177 let Inst{31-27} = 0b11111;
1178 let Inst{26-25} = 0b00;
1179 let Inst{24} = signed;
1181 let Inst{22-21} = opcod;
1182 let Inst{20} = 1; // load
1183 let Inst{11-6} = 0b000000;
1186 let Inst{15-12} = Rt;
1189 let Inst{19-16} = addr{9-6}; // Rn
1190 let Inst{3-0} = addr{5-2}; // Rm
1191 let Inst{5-4} = addr{1-0}; // imm
1193 let DecoderMethod = "DecodeT2LoadShift";
1196 // pci variant is very similar to i12, but supports negative offsets
1198 def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
1199 opc, ".w\t$Rt, $addr",
1200 [(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]>,
1202 let isReMaterializable = 1;
1203 let Inst{31-27} = 0b11111;
1204 let Inst{26-25} = 0b00;
1205 let Inst{24} = signed;
1206 let Inst{22-21} = opcod;
1207 let Inst{20} = 1; // load
1208 let Inst{19-16} = 0b1111; // Rn
1211 let Inst{15-12} = Rt{3-0};
1214 let Inst{23} = addr{12}; // add = (U == '1')
1215 let Inst{11-0} = addr{11-0};
1217 let DecoderMethod = "DecodeT2LoadLabel";
1221 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
1222 multiclass T2I_st<bits<2> opcod, string opc,
1223 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
1225 def i12 : T2Ii12<(outs), (ins target:$Rt, t2addrmode_imm12:$addr), iii,
1226 opc, ".w\t$Rt, $addr",
1227 [(opnode target:$Rt, t2addrmode_imm12:$addr)]>,
1229 let Inst{31-27} = 0b11111;
1230 let Inst{26-23} = 0b0001;
1231 let Inst{22-21} = opcod;
1232 let Inst{20} = 0; // !load
1235 let Inst{15-12} = Rt;
1238 let addr{12} = 1; // add = TRUE
1239 let Inst{19-16} = addr{16-13}; // Rn
1240 let Inst{23} = addr{12}; // U
1241 let Inst{11-0} = addr{11-0}; // imm
1243 def i8 : T2Ii8 <(outs), (ins target:$Rt, t2addrmode_negimm8:$addr), iii,
1244 opc, "\t$Rt, $addr",
1245 [(opnode target:$Rt, t2addrmode_negimm8:$addr)]>,
1247 let Inst{31-27} = 0b11111;
1248 let Inst{26-23} = 0b0000;
1249 let Inst{22-21} = opcod;
1250 let Inst{20} = 0; // !load
1252 // Offset: index==TRUE, wback==FALSE
1253 let Inst{10} = 1; // The P bit.
1254 let Inst{8} = 0; // The W bit.
1257 let Inst{15-12} = Rt;
1260 let Inst{19-16} = addr{12-9}; // Rn
1261 let Inst{9} = addr{8}; // U
1262 let Inst{7-0} = addr{7-0}; // imm
1264 def s : T2Iso <(outs), (ins target:$Rt, t2addrmode_so_reg:$addr), iis,
1265 opc, ".w\t$Rt, $addr",
1266 [(opnode target:$Rt, t2addrmode_so_reg:$addr)]>,
1268 let Inst{31-27} = 0b11111;
1269 let Inst{26-23} = 0b0000;
1270 let Inst{22-21} = opcod;
1271 let Inst{20} = 0; // !load
1272 let Inst{11-6} = 0b000000;
1275 let Inst{15-12} = Rt;
1278 let Inst{19-16} = addr{9-6}; // Rn
1279 let Inst{3-0} = addr{5-2}; // Rm
1280 let Inst{5-4} = addr{1-0}; // imm
1284 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
1285 /// register and one whose operand is a register rotated by 8/16/24.
1286 class T2I_ext_rrot_base<bits<3> opcod, dag iops, dag oops,
1287 string opc, string oprs,
1289 : T2TwoReg<iops, oops, IIC_iEXTr, opc, oprs, pattern> {
1291 let Inst{31-27} = 0b11111;
1292 let Inst{26-23} = 0b0100;
1293 let Inst{22-20} = opcod;
1294 let Inst{19-16} = 0b1111; // Rn
1295 let Inst{15-12} = 0b1111;
1297 let Inst{5-4} = rot; // rotate
1300 class T2I_ext_rrot<bits<3> opcod, string opc>
1301 : T2I_ext_rrot_base<opcod,
1303 (ins rGPR:$Rm, rot_imm:$rot),
1304 opc, ".w\t$Rd, $Rm$rot", []>,
1305 Requires<[IsThumb2]>,
1306 Sched<[WriteALU, ReadALU]>;
1308 // UXTB16, SXTB16 - Requires HasDSP, does not need the .w qualifier.
1309 class T2I_ext_rrot_xtb16<bits<3> opcod, string opc>
1310 : T2I_ext_rrot_base<opcod,
1312 (ins rGPR:$Rm, rot_imm:$rot),
1313 opc, "\t$Rd, $Rm$rot", []>,
1314 Requires<[HasDSP, IsThumb2]>,
1315 Sched<[WriteALU, ReadALU]>;
1317 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1318 /// register and one whose operand is a register rotated by 8/16/24.
1319 class T2I_exta_rrot<bits<3> opcod, string opc>
1320 : T2ThreeReg<(outs rGPR:$Rd),
1321 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1322 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []>,
1323 Requires<[HasDSP, IsThumb2]>,
1324 Sched<[WriteALU, ReadALU]> {
1326 let Inst{31-27} = 0b11111;
1327 let Inst{26-23} = 0b0100;
1328 let Inst{22-20} = opcod;
1329 let Inst{15-12} = 0b1111;
1331 let Inst{5-4} = rot;
1334 //===----------------------------------------------------------------------===//
1336 //===----------------------------------------------------------------------===//
1338 //===----------------------------------------------------------------------===//
1339 // Miscellaneous Instructions.
1342 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1343 string asm, list<dag> pattern>
1344 : T2XI<oops, iops, itin, asm, pattern> {
1348 let Inst{11-8} = Rd;
1349 let Inst{26} = label{11};
1350 let Inst{14-12} = label{10-8};
1351 let Inst{7-0} = label{7-0};
1354 // LEApcrel - Load a pc-relative address into a register without offending the
1356 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1357 (ins t2adrlabel:$addr, pred:$p),
1358 IIC_iALUi, "adr{$p}.w\t$Rd, $addr", []>,
1359 Sched<[WriteALU, ReadALU]> {
1360 let Inst{31-27} = 0b11110;
1361 let Inst{25-24} = 0b10;
1362 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1365 let Inst{19-16} = 0b1111; // Rn
1370 let Inst{11-8} = Rd;
1371 let Inst{23} = addr{12};
1372 let Inst{21} = addr{12};
1373 let Inst{26} = addr{11};
1374 let Inst{14-12} = addr{10-8};
1375 let Inst{7-0} = addr{7-0};
1377 let DecoderMethod = "DecodeT2Adr";
1380 let hasSideEffects = 0, isReMaterializable = 1 in
1381 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1382 4, IIC_iALUi, []>, Sched<[WriteALU, ReadALU]>;
1383 let hasSideEffects = 1 in
1384 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1385 (ins i32imm:$label, pred:$p),
1387 []>, Sched<[WriteALU, ReadALU]>;
1390 //===----------------------------------------------------------------------===//
1391 // Load / store Instructions.
1395 let canFoldAsLoad = 1, isReMaterializable = 1 in
1396 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si, GPR, load>;
1398 // Loads with zero extension
1399 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1400 GPRnopc, zextloadi16>;
1401 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1402 GPRnopc, zextloadi8>;
1404 // Loads with sign extension
1405 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1406 GPRnopc, sextloadi16>;
1407 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1408 GPRnopc, sextloadi8>;
1410 let mayLoad = 1, hasSideEffects = 0, hasExtraDefRegAllocReq = 1 in {
1412 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1413 (ins t2addrmode_imm8s4:$addr),
1414 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", "", []>,
1416 } // mayLoad = 1, hasSideEffects = 0, hasExtraDefRegAllocReq = 1
1418 // zextload i1 -> zextload i8
1419 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1420 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1421 def : T2Pat<(zextloadi1 t2addrmode_negimm8:$addr),
1422 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1423 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1424 (t2LDRBs t2addrmode_so_reg:$addr)>;
1425 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1426 (t2LDRBpci tconstpool:$addr)>;
1428 // extload -> zextload
1429 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1431 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1432 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1433 def : T2Pat<(extloadi1 t2addrmode_negimm8:$addr),
1434 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1435 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1436 (t2LDRBs t2addrmode_so_reg:$addr)>;
1437 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1438 (t2LDRBpci tconstpool:$addr)>;
1440 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1441 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1442 def : T2Pat<(extloadi8 t2addrmode_negimm8:$addr),
1443 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1444 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1445 (t2LDRBs t2addrmode_so_reg:$addr)>;
1446 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1447 (t2LDRBpci tconstpool:$addr)>;
1449 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1450 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1451 def : T2Pat<(extloadi16 t2addrmode_negimm8:$addr),
1452 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
1453 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1454 (t2LDRHs t2addrmode_so_reg:$addr)>;
1455 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1456 (t2LDRHpci tconstpool:$addr)>;
1458 // FIXME: The destination register of the loads and stores can't be PC, but
1459 // can be SP. We need another regclass (similar to rGPR) to represent
1460 // that. Not a pressing issue since these are selected manually,
1465 let mayLoad = 1, hasSideEffects = 0 in {
1466 def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1467 (ins t2addrmode_imm8_pre:$addr),
1468 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1469 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn_wb", []>,
1472 def t2LDR_POST : T2Ipostldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1473 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1474 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1475 "ldr", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>,
1478 def t2LDRB_PRE : T2Ipreldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1479 (ins t2addrmode_imm8_pre:$addr),
1480 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1481 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn_wb", []>,
1484 def t2LDRB_POST : T2Ipostldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1485 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1486 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1487 "ldrb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>,
1490 def t2LDRH_PRE : T2Ipreldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1491 (ins t2addrmode_imm8_pre:$addr),
1492 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1493 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn_wb", []>,
1496 def t2LDRH_POST : T2Ipostldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1497 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1498 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1499 "ldrh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>,
1502 def t2LDRSB_PRE : T2Ipreldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1503 (ins t2addrmode_imm8_pre:$addr),
1504 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1505 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1506 []>, Sched<[WriteLd]>;
1508 def t2LDRSB_POST : T2Ipostldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1509 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1510 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1511 "ldrsb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>,
1514 def t2LDRSH_PRE : T2Ipreldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1515 (ins t2addrmode_imm8_pre:$addr),
1516 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1517 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1518 []>, Sched<[WriteLd]>;
1520 def t2LDRSH_POST : T2Ipostldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1521 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1522 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1523 "ldrsh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>,
1525 } // mayLoad = 1, hasSideEffects = 0
1527 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110).
1528 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1529 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1530 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_posimm8:$addr), ii, opc,
1531 "\t$Rt, $addr", []>, Sched<[WriteLd]> {
1534 let Inst{31-27} = 0b11111;
1535 let Inst{26-25} = 0b00;
1536 let Inst{24} = signed;
1538 let Inst{22-21} = type;
1539 let Inst{20} = 1; // load
1540 let Inst{19-16} = addr{12-9};
1541 let Inst{15-12} = Rt;
1543 let Inst{10-8} = 0b110; // PUW.
1544 let Inst{7-0} = addr{7-0};
1546 let DecoderMethod = "DecodeT2LoadT";
1549 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1550 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1551 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1552 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1553 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1555 class T2Ildacq<bits<4> bits23_20, bits<2> bit54, dag oops, dag iops,
1556 string opc, string asm, list<dag> pattern>
1557 : Thumb2I<oops, iops, AddrModeNone, 4, NoItinerary,
1558 opc, asm, "", pattern>, Requires<[IsThumb, HasAcquireRelease]> {
1562 let Inst{31-27} = 0b11101;
1563 let Inst{26-24} = 0b000;
1564 let Inst{23-20} = bits23_20;
1565 let Inst{11-6} = 0b111110;
1566 let Inst{5-4} = bit54;
1567 let Inst{3-0} = 0b1111;
1569 // Encode instruction operands
1570 let Inst{19-16} = addr;
1571 let Inst{15-12} = Rt;
1574 def t2LDA : T2Ildacq<0b1101, 0b10, (outs rGPR:$Rt),
1575 (ins addr_offset_none:$addr), "lda", "\t$Rt, $addr", []>,
1577 def t2LDAB : T2Ildacq<0b1101, 0b00, (outs rGPR:$Rt),
1578 (ins addr_offset_none:$addr), "ldab", "\t$Rt, $addr", []>,
1580 def t2LDAH : T2Ildacq<0b1101, 0b01, (outs rGPR:$Rt),
1581 (ins addr_offset_none:$addr), "ldah", "\t$Rt, $addr", []>,
1585 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si, GPR, store>;
1586 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1587 rGPR, truncstorei8>;
1588 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1589 rGPR, truncstorei16>;
1592 let mayStore = 1, hasSideEffects = 0, hasExtraSrcRegAllocReq = 1 in
1593 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1594 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4:$addr),
1595 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", "", []>,
1600 let mayStore = 1, hasSideEffects = 0 in {
1601 def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
1602 (ins GPRnopc:$Rt, t2addrmode_imm8_pre:$addr),
1603 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1604 "str", "\t$Rt, $addr!",
1605 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []>,
1608 def t2STRH_PRE : T2Ipreldst<0, 0b01, 0, 1, (outs GPRnopc:$Rn_wb),
1609 (ins rGPR:$Rt, t2addrmode_imm8_pre:$addr),
1610 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1611 "strh", "\t$Rt, $addr!",
1612 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []>,
1615 def t2STRB_PRE : T2Ipreldst<0, 0b00, 0, 1, (outs GPRnopc:$Rn_wb),
1616 (ins rGPR:$Rt, t2addrmode_imm8_pre:$addr),
1617 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1618 "strb", "\t$Rt, $addr!",
1619 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []>,
1621 } // mayStore = 1, hasSideEffects = 0
1623 def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
1624 (ins GPRnopc:$Rt, addr_offset_none:$Rn,
1625 t2am_imm8_offset:$offset),
1626 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1627 "str", "\t$Rt, $Rn$offset",
1628 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1629 [(set GPRnopc:$Rn_wb,
1630 (post_store GPRnopc:$Rt, addr_offset_none:$Rn,
1631 t2am_imm8_offset:$offset))]>,
1634 def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb),
1635 (ins rGPR:$Rt, addr_offset_none:$Rn,
1636 t2am_imm8_offset:$offset),
1637 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1638 "strh", "\t$Rt, $Rn$offset",
1639 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1640 [(set GPRnopc:$Rn_wb,
1641 (post_truncsti16 rGPR:$Rt, addr_offset_none:$Rn,
1642 t2am_imm8_offset:$offset))]>,
1645 def t2STRB_POST : T2Ipostldst<0, 0b00, 0, 0, (outs GPRnopc:$Rn_wb),
1646 (ins rGPR:$Rt, addr_offset_none:$Rn,
1647 t2am_imm8_offset:$offset),
1648 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1649 "strb", "\t$Rt, $Rn$offset",
1650 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1651 [(set GPRnopc:$Rn_wb,
1652 (post_truncsti8 rGPR:$Rt, addr_offset_none:$Rn,
1653 t2am_imm8_offset:$offset))]>,
1656 // Pseudo-instructions for pattern matching the pre-indexed stores. We can't
1657 // put the patterns on the instruction definitions directly as ISel wants
1658 // the address base and offset to be separate operands, not a single
1659 // complex operand like we represent the instructions themselves. The
1660 // pseudos map between the two.
1661 let usesCustomInserter = 1,
1662 Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in {
1663 def t2STR_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1664 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1666 [(set GPRnopc:$Rn_wb,
1667 (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>,
1669 def t2STRB_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1670 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1672 [(set GPRnopc:$Rn_wb,
1673 (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>,
1675 def t2STRH_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1676 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1678 [(set GPRnopc:$Rn_wb,
1679 (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>,
1683 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1685 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1686 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1687 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1688 "\t$Rt, $addr", []>, Sched<[WriteST]> {
1689 let Inst{31-27} = 0b11111;
1690 let Inst{26-25} = 0b00;
1691 let Inst{24} = 0; // not signed
1693 let Inst{22-21} = type;
1694 let Inst{20} = 0; // store
1696 let Inst{10-8} = 0b110; // PUW
1700 let Inst{15-12} = Rt;
1701 let Inst{19-16} = addr{12-9};
1702 let Inst{7-0} = addr{7-0};
1705 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1706 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1707 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1709 // ldrd / strd pre / post variants
1712 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1713 (ins t2addrmode_imm8s4_pre:$addr), IIC_iLoad_d_ru,
1714 "ldrd", "\t$Rt, $Rt2, $addr!", "$addr.base = $wb", []>,
1716 let DecoderMethod = "DecodeT2LDRDPreInstruction";
1720 def t2LDRD_POST : T2Ii8s4post<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1721 (ins addr_offset_none:$addr, t2am_imm8s4_offset:$imm),
1722 IIC_iLoad_d_ru, "ldrd", "\t$Rt, $Rt2, $addr$imm",
1723 "$addr.base = $wb", []>, Sched<[WriteLd]>;
1726 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs GPR:$wb),
1727 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4_pre:$addr),
1728 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr!",
1729 "$addr.base = $wb", []>, Sched<[WriteST]> {
1730 let DecoderMethod = "DecodeT2STRDPreInstruction";
1734 def t2STRD_POST : T2Ii8s4post<0, 1, 0, (outs GPR:$wb),
1735 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr,
1736 t2am_imm8s4_offset:$imm),
1737 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr$imm",
1738 "$addr.base = $wb", []>, Sched<[WriteST]>;
1740 class T2Istrrel<bits<2> bit54, dag oops, dag iops,
1741 string opc, string asm, list<dag> pattern>
1742 : Thumb2I<oops, iops, AddrModeNone, 4, NoItinerary, opc,
1743 asm, "", pattern>, Requires<[IsThumb, HasAcquireRelease]>,
1748 let Inst{31-27} = 0b11101;
1749 let Inst{26-20} = 0b0001100;
1750 let Inst{11-6} = 0b111110;
1751 let Inst{5-4} = bit54;
1752 let Inst{3-0} = 0b1111;
1754 // Encode instruction operands
1755 let Inst{19-16} = addr;
1756 let Inst{15-12} = Rt;
1759 def t2STL : T2Istrrel<0b10, (outs), (ins rGPR:$Rt, addr_offset_none:$addr),
1760 "stl", "\t$Rt, $addr", []>;
1761 def t2STLB : T2Istrrel<0b00, (outs), (ins rGPR:$Rt, addr_offset_none:$addr),
1762 "stlb", "\t$Rt, $addr", []>;
1763 def t2STLH : T2Istrrel<0b01, (outs), (ins rGPR:$Rt, addr_offset_none:$addr),
1764 "stlh", "\t$Rt, $addr", []>;
1766 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1767 // data/instruction access.
1768 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1769 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1770 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1772 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1774 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]>,
1775 Sched<[WritePreLd]> {
1776 let Inst{31-25} = 0b1111100;
1777 let Inst{24} = instr;
1780 let Inst{21} = write;
1782 let Inst{15-12} = 0b1111;
1785 let Inst{19-16} = addr{16-13}; // Rn
1786 let Inst{11-0} = addr{11-0}; // imm12
1788 let DecoderMethod = "DecodeT2LoadImm12";
1791 def i8 : T2Ii8<(outs), (ins t2addrmode_negimm8:$addr), IIC_Preload, opc,
1793 [(ARMPreload t2addrmode_negimm8:$addr, (i32 write), (i32 instr))]>,
1794 Sched<[WritePreLd]> {
1795 let Inst{31-25} = 0b1111100;
1796 let Inst{24} = instr;
1797 let Inst{23} = 0; // U = 0
1799 let Inst{21} = write;
1801 let Inst{15-12} = 0b1111;
1802 let Inst{11-8} = 0b1100;
1805 let Inst{19-16} = addr{12-9}; // Rn
1806 let Inst{7-0} = addr{7-0}; // imm8
1808 let DecoderMethod = "DecodeT2LoadImm8";
1811 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1813 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]>,
1814 Sched<[WritePreLd]> {
1815 let Inst{31-25} = 0b1111100;
1816 let Inst{24} = instr;
1817 let Inst{23} = 0; // add = TRUE for T1
1819 let Inst{21} = write;
1821 let Inst{15-12} = 0b1111;
1822 let Inst{11-6} = 0b000000;
1825 let Inst{19-16} = addr{9-6}; // Rn
1826 let Inst{3-0} = addr{5-2}; // Rm
1827 let Inst{5-4} = addr{1-0}; // imm2
1829 let DecoderMethod = "DecodeT2LoadShift";
1833 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1834 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1835 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1837 // pci variant is very similar to i12, but supports negative offsets
1838 // from the PC. Only PLD and PLI have pci variants (not PLDW)
1839 class T2Iplpci<bits<1> inst, string opc> : T2Iso<(outs), (ins t2ldrlabel:$addr),
1840 IIC_Preload, opc, "\t$addr",
1841 [(ARMPreload (ARMWrapper tconstpool:$addr),
1842 (i32 0), (i32 inst))]>, Sched<[WritePreLd]> {
1843 let Inst{31-25} = 0b1111100;
1844 let Inst{24} = inst;
1845 let Inst{22-20} = 0b001;
1846 let Inst{19-16} = 0b1111;
1847 let Inst{15-12} = 0b1111;
1850 let Inst{23} = addr{12}; // add = (U == '1')
1851 let Inst{11-0} = addr{11-0}; // imm12
1853 let DecoderMethod = "DecodeT2LoadLabel";
1856 def t2PLDpci : T2Iplpci<0, "pld">, Requires<[IsThumb2]>;
1857 def t2PLIpci : T2Iplpci<1, "pli">, Requires<[IsThumb2,HasV7]>;
1859 //===----------------------------------------------------------------------===//
1860 // Load / store multiple Instructions.
1863 multiclass thumb2_ld_mult<string asm, InstrItinClass itin,
1864 InstrItinClass itin_upd, bit L_bit> {
1866 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1867 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1871 let Inst{31-27} = 0b11101;
1872 let Inst{26-25} = 0b00;
1873 let Inst{24-23} = 0b01; // Increment After
1875 let Inst{21} = 0; // No writeback
1876 let Inst{20} = L_bit;
1877 let Inst{19-16} = Rn;
1878 let Inst{15-0} = regs;
1881 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1882 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1886 let Inst{31-27} = 0b11101;
1887 let Inst{26-25} = 0b00;
1888 let Inst{24-23} = 0b01; // Increment After
1890 let Inst{21} = 1; // Writeback
1891 let Inst{20} = L_bit;
1892 let Inst{19-16} = Rn;
1893 let Inst{15-0} = regs;
1896 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1897 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1901 let Inst{31-27} = 0b11101;
1902 let Inst{26-25} = 0b00;
1903 let Inst{24-23} = 0b10; // Decrement Before
1905 let Inst{21} = 0; // No writeback
1906 let Inst{20} = L_bit;
1907 let Inst{19-16} = Rn;
1908 let Inst{15-0} = regs;
1911 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1912 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1916 let Inst{31-27} = 0b11101;
1917 let Inst{26-25} = 0b00;
1918 let Inst{24-23} = 0b10; // Decrement Before
1920 let Inst{21} = 1; // Writeback
1921 let Inst{20} = L_bit;
1922 let Inst{19-16} = Rn;
1923 let Inst{15-0} = regs;
1927 let hasSideEffects = 0 in {
1929 let mayLoad = 1, hasExtraDefRegAllocReq = 1, variadicOpsAreDefs = 1 in
1930 defm t2LDM : thumb2_ld_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1932 multiclass thumb2_st_mult<string asm, InstrItinClass itin,
1933 InstrItinClass itin_upd, bit L_bit> {
1935 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1936 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1940 let Inst{31-27} = 0b11101;
1941 let Inst{26-25} = 0b00;
1942 let Inst{24-23} = 0b01; // Increment After
1944 let Inst{21} = 0; // No writeback
1945 let Inst{20} = L_bit;
1946 let Inst{19-16} = Rn;
1948 let Inst{14} = regs{14};
1950 let Inst{12-0} = regs{12-0};
1953 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1954 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1958 let Inst{31-27} = 0b11101;
1959 let Inst{26-25} = 0b00;
1960 let Inst{24-23} = 0b01; // Increment After
1962 let Inst{21} = 1; // Writeback
1963 let Inst{20} = L_bit;
1964 let Inst{19-16} = Rn;
1966 let Inst{14} = regs{14};
1968 let Inst{12-0} = regs{12-0};
1971 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1972 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1976 let Inst{31-27} = 0b11101;
1977 let Inst{26-25} = 0b00;
1978 let Inst{24-23} = 0b10; // Decrement Before
1980 let Inst{21} = 0; // No writeback
1981 let Inst{20} = L_bit;
1982 let Inst{19-16} = Rn;
1984 let Inst{14} = regs{14};
1986 let Inst{12-0} = regs{12-0};
1989 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1990 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1994 let Inst{31-27} = 0b11101;
1995 let Inst{26-25} = 0b00;
1996 let Inst{24-23} = 0b10; // Decrement Before
1998 let Inst{21} = 1; // Writeback
1999 let Inst{20} = L_bit;
2000 let Inst{19-16} = Rn;
2002 let Inst{14} = regs{14};
2004 let Inst{12-0} = regs{12-0};
2009 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
2010 defm t2STM : thumb2_st_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
2015 //===----------------------------------------------------------------------===//
2016 // Move Instructions.
2019 let hasSideEffects = 0 in
2020 def t2MOVr : T2sTwoReg<(outs GPRnopc:$Rd), (ins GPRnopc:$Rm), IIC_iMOVr,
2021 "mov", ".w\t$Rd, $Rm", []>, Sched<[WriteALU]> {
2022 let Inst{31-27} = 0b11101;
2023 let Inst{26-25} = 0b01;
2024 let Inst{24-21} = 0b0010;
2025 let Inst{19-16} = 0b1111; // Rn
2027 let Inst{14-12} = 0b000;
2028 let Inst{7-4} = 0b0000;
2030 def : t2InstAlias<"mov${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPRnopc:$Rm,
2031 pred:$p, zero_reg)>;
2032 def : t2InstAlias<"movs${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPRnopc:$Rm,
2034 def : t2InstAlias<"movs${p} $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPRnopc:$Rm,
2037 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
2038 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
2039 AddedComplexity = 1 in
2040 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
2041 "mov", ".w\t$Rd, $imm",
2042 [(set rGPR:$Rd, t2_so_imm:$imm)]>, Sched<[WriteALU]> {
2043 let Inst{31-27} = 0b11110;
2045 let Inst{24-21} = 0b0010;
2046 let Inst{19-16} = 0b1111; // Rn
2050 // cc_out is handled as part of the explicit mnemonic in the parser for 'mov'.
2051 // Use aliases to get that to play nice here.
2052 def : t2InstAlias<"movs${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
2054 def : t2InstAlias<"movs${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
2057 def : t2InstAlias<"mov${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
2058 pred:$p, zero_reg)>;
2059 def : t2InstAlias<"mov${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
2060 pred:$p, zero_reg)>;
2062 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
2063 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
2064 "movw", "\t$Rd, $imm",
2065 [(set rGPR:$Rd, imm0_65535:$imm)]>, Sched<[WriteALU]>,
2066 Requires<[IsThumb, HasV8MBaseline]> {
2067 let Inst{31-27} = 0b11110;
2069 let Inst{24-21} = 0b0010;
2070 let Inst{20} = 0; // The S bit.
2076 let Inst{11-8} = Rd;
2077 let Inst{19-16} = imm{15-12};
2078 let Inst{26} = imm{11};
2079 let Inst{14-12} = imm{10-8};
2080 let Inst{7-0} = imm{7-0};
2081 let DecoderMethod = "DecodeT2MOVTWInstruction";
2084 def : InstAlias<"mov${p} $Rd, $imm",
2085 (t2MOVi16 rGPR:$Rd, imm256_65535_expr:$imm, pred:$p), 0>,
2086 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteALU]>;
2088 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
2089 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>,
2092 let Constraints = "$src = $Rd" in {
2093 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
2094 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
2095 "movt", "\t$Rd, $imm",
2097 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]>,
2099 Requires<[IsThumb, HasV8MBaseline]> {
2100 let Inst{31-27} = 0b11110;
2102 let Inst{24-21} = 0b0110;
2103 let Inst{20} = 0; // The S bit.
2109 let Inst{11-8} = Rd;
2110 let Inst{19-16} = imm{15-12};
2111 let Inst{26} = imm{11};
2112 let Inst{14-12} = imm{10-8};
2113 let Inst{7-0} = imm{7-0};
2114 let DecoderMethod = "DecodeT2MOVTWInstruction";
2117 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
2118 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>,
2119 Sched<[WriteALU]>, Requires<[IsThumb, HasV8MBaseline]>;
2122 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
2124 //===----------------------------------------------------------------------===//
2125 // Extend Instructions.
2130 def t2SXTB : T2I_ext_rrot<0b100, "sxtb">;
2131 def t2SXTH : T2I_ext_rrot<0b000, "sxth">;
2132 def t2SXTB16 : T2I_ext_rrot_xtb16<0b010, "sxtb16">;
2134 def t2SXTAB : T2I_exta_rrot<0b100, "sxtab">;
2135 def t2SXTAH : T2I_exta_rrot<0b000, "sxtah">;
2136 def t2SXTAB16 : T2I_exta_rrot<0b010, "sxtab16">;
2138 def : T2Pat<(sext_inreg (rotr rGPR:$Rn, rot_imm:$rot), i8),
2139 (t2SXTB rGPR:$Rn, rot_imm:$rot)>;
2140 def : T2Pat<(sext_inreg (rotr rGPR:$Rn, rot_imm:$rot), i16),
2141 (t2SXTH rGPR:$Rn, rot_imm:$rot)>;
2142 def : Thumb2DSPPat<(add rGPR:$Rn,
2143 (sext_inreg (rotr rGPR:$Rm, rot_imm:$rot), i8)),
2144 (t2SXTAB rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2145 def : Thumb2DSPPat<(add rGPR:$Rn,
2146 (sext_inreg (rotr rGPR:$Rm, rot_imm:$rot), i16)),
2147 (t2SXTAH rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2148 def : Thumb2DSPPat<(int_arm_sxtb16 rGPR:$Rn),
2149 (t2SXTB16 rGPR:$Rn, 0)>;
2150 def : Thumb2DSPPat<(int_arm_sxtab16 rGPR:$Rn, rGPR:$Rm),
2151 (t2SXTAB16 rGPR:$Rn, rGPR:$Rm, 0)>;
2152 def : Thumb2DSPPat<(int_arm_sxtb16 (rotr rGPR:$Rn, rot_imm:$rot)),
2153 (t2SXTB16 rGPR:$Rn, rot_imm:$rot)>;
2154 def : Thumb2DSPPat<(int_arm_sxtab16 rGPR:$Rn, (rotr rGPR:$Rm, rot_imm:$rot)),
2155 (t2SXTAB16 rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2158 // A simple right-shift can also be used in most cases (the exception is the
2159 // SXTH operations with a rotate of 24: there the non-contiguous bits are
2161 def : Thumb2DSPPat<(add rGPR:$Rn, (sext_inreg
2162 (srl rGPR:$Rm, rot_imm:$rot), i8)),
2163 (t2SXTAB rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2164 def : Thumb2DSPPat<(add rGPR:$Rn, (sext_inreg
2165 (srl rGPR:$Rm, imm8_or_16:$rot), i16)),
2166 (t2SXTAH rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2167 def : Thumb2DSPPat<(add rGPR:$Rn, (sext_inreg
2168 (rotr rGPR:$Rm, (i32 24)), i16)),
2169 (t2SXTAH rGPR:$Rn, rGPR:$Rm, (i32 3))>;
2170 def : Thumb2DSPPat<(add rGPR:$Rn, (sext_inreg
2171 (or (srl rGPR:$Rm, (i32 24)),
2172 (shl rGPR:$Rm, (i32 8))), i16)),
2173 (t2SXTAH rGPR:$Rn, rGPR:$Rm, (i32 3))>;
2177 let AddedComplexity = 16 in {
2178 def t2UXTB : T2I_ext_rrot<0b101, "uxtb">;
2179 def t2UXTH : T2I_ext_rrot<0b001, "uxth">;
2180 def t2UXTB16 : T2I_ext_rrot_xtb16<0b011, "uxtb16">;
2182 def : Thumb2DSPPat<(and (rotr rGPR:$Rm, rot_imm:$rot), 0x000000FF),
2183 (t2UXTB rGPR:$Rm, rot_imm:$rot)>;
2184 def : Thumb2DSPPat<(and (rotr rGPR:$Rm, rot_imm:$rot), 0x0000FFFF),
2185 (t2UXTH rGPR:$Rm, rot_imm:$rot)>;
2186 def : Thumb2DSPPat<(and (rotr rGPR:$Rm, rot_imm:$rot), 0x00FF00FF),
2187 (t2UXTB16 rGPR:$Rm, rot_imm:$rot)>;
2189 def : Thumb2DSPPat<(int_arm_uxtb16 rGPR:$Rm),
2190 (t2UXTB16 rGPR:$Rm, 0)>;
2191 def : Thumb2DSPPat<(int_arm_uxtb16 (rotr rGPR:$Rn, rot_imm:$rot)),
2192 (t2UXTB16 rGPR:$Rn, rot_imm:$rot)>;
2194 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
2195 // The transformation should probably be done as a combiner action
2196 // instead so we can include a check for masking back in the upper
2197 // eight bits of the source into the lower eight bits of the result.
2198 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
2199 // (t2UXTB16 rGPR:$Src, 3)>,
2200 // Requires<[HasDSP, IsThumb2]>;
2201 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
2202 (t2UXTB16 rGPR:$Src, 1)>,
2203 Requires<[HasDSP, IsThumb2]>;
2205 def t2UXTAB : T2I_exta_rrot<0b101, "uxtab">;
2206 def t2UXTAH : T2I_exta_rrot<0b001, "uxtah">;
2207 def t2UXTAB16 : T2I_exta_rrot<0b011, "uxtab16">;
2209 def : Thumb2DSPPat<(add rGPR:$Rn, (and (rotr rGPR:$Rm, rot_imm:$rot),
2211 (t2UXTAB rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2212 def : Thumb2DSPPat<(add rGPR:$Rn, (and (rotr rGPR:$Rm, rot_imm:$rot),
2214 (t2UXTAH rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2215 def : Thumb2DSPPat<(add rGPR:$Rn, (and (srl rGPR:$Rm, rot_imm:$rot),
2217 (t2UXTAB rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2218 def : Thumb2DSPPat<(add rGPR:$Rn, (and (srl rGPR:$Rm, imm8_or_16:$rot),
2220 (t2UXTAH rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2221 def : Thumb2DSPPat<(int_arm_uxtab16 rGPR:$Rn, rGPR:$Rm),
2222 (t2UXTAB16 rGPR:$Rn, rGPR:$Rm, 0)>;
2223 def : Thumb2DSPPat<(int_arm_uxtab16 rGPR:$Rn, (rotr rGPR:$Rm, rot_imm:$rot)),
2224 (t2UXTAB16 rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2228 //===----------------------------------------------------------------------===//
2229 // Arithmetic Instructions.
2233 defm t2ADD : T2I_bin_ii12rs<0b000, "add", add, 1>;
2234 defm t2SUB : T2I_bin_ii12rs<0b101, "sub", sub>;
2236 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
2238 // Currently, t2ADDS/t2SUBS are pseudo opcodes that exist only in the
2239 // selection DAG. They are "lowered" to real t2ADD/t2SUB opcodes by
2240 // AdjustInstrPostInstrSelection where we determine whether or not to
2241 // set the "s" bit based on CPSR liveness.
2243 // FIXME: Eliminate t2ADDS/t2SUBS pseudo opcodes after adding tablegen
2244 // support for an optional CPSR definition that corresponds to the DAG
2245 // node's second value. We can then eliminate the implicit def of CPSR.
2246 defm t2ADDS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi, ARMaddc, 1>;
2247 defm t2SUBS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi, ARMsubc>;
2249 def : T2Pat<(ARMsubs GPRnopc:$Rn, t2_so_imm:$imm),
2250 (t2SUBSri $Rn, t2_so_imm:$imm)>;
2251 def : T2Pat<(ARMsubs GPRnopc:$Rn, rGPR:$Rm), (t2SUBSrr $Rn, $Rm)>;
2252 def : T2Pat<(ARMsubs GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
2253 (t2SUBSrs $Rn, t2_so_reg:$ShiftedRm)>;
2255 let hasPostISelHook = 1 in {
2256 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc", ARMadde, 1>;
2257 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc", ARMsube>;
2260 def : t2InstSubst<"adc${s}${p} $rd, $rn, $imm",
2261 (t2SBCri rGPR:$rd, rGPR:$rn, t2_so_imm_not:$imm, pred:$p, s_cc_out:$s)>;
2262 def : t2InstSubst<"sbc${s}${p} $rd, $rn, $imm",
2263 (t2ADCri rGPR:$rd, rGPR:$rn, t2_so_imm_not:$imm, pred:$p, s_cc_out:$s)>;
2265 def : t2InstSubst<"add${s}${p}.w $rd, $rn, $imm",
2266 (t2SUBri GPRnopc:$rd, GPRnopc:$rn, t2_so_imm_neg:$imm, pred:$p, s_cc_out:$s)>;
2267 def : t2InstSubst<"addw${p} $rd, $rn, $imm",
2268 (t2SUBri12 GPRnopc:$rd, GPR:$rn, t2_so_imm_neg:$imm, pred:$p)>;
2269 def : t2InstSubst<"sub${s}${p}.w $rd, $rn, $imm",
2270 (t2ADDri GPRnopc:$rd, GPRnopc:$rn, t2_so_imm_neg:$imm, pred:$p, s_cc_out:$s)>;
2271 def : t2InstSubst<"subw${p} $rd, $rn, $imm",
2272 (t2ADDri12 GPRnopc:$rd, GPR:$rn, t2_so_imm_neg:$imm, pred:$p)>;
2273 def : t2InstSubst<"subw${p} $Rd, $Rn, $imm",
2274 (t2ADDri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
2275 def : t2InstSubst<"sub${s}${p} $rd, $rn, $imm",
2276 (t2ADDri GPRnopc:$rd, GPRnopc:$rn, t2_so_imm_neg:$imm, pred:$p, s_cc_out:$s)>;
2277 def : t2InstSubst<"sub${p} $rd, $rn, $imm",
2278 (t2ADDri12 GPRnopc:$rd, GPR:$rn, t2_so_imm_neg:$imm, pred:$p)>;
2280 defm t2RSB : T2I_rbin_irs <0b1110, "rsb", sub>;
2282 // FIXME: Eliminate them if we can write def : Pat patterns which defines
2283 // CPSR and the implicit def of CPSR is not needed.
2284 defm t2RSBS : T2I_rbin_s_is <ARMsubc>;
2286 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
2287 // The assume-no-carry-in form uses the negation of the input since add/sub
2288 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
2289 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
2291 // The AddedComplexity preferences the first variant over the others since
2292 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
2293 let AddedComplexity = 1 in
2294 def : T2Pat<(add GPR:$src, imm1_255_neg:$imm),
2295 (t2SUBri GPR:$src, imm1_255_neg:$imm)>;
2296 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
2297 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
2298 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
2299 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
2300 def : T2Pat<(add GPR:$src, imm0_65535_neg:$imm),
2301 (t2SUBrr GPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
2303 // Do the same for v8m targets since they support movw with a 16-bit value.
2304 def : T1Pat<(add tGPR:$src, imm0_65535_neg:$imm),
2305 (tSUBrr tGPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>,
2306 Requires<[HasV8MBaseline]>;
2308 let AddedComplexity = 1 in
2309 def : T2Pat<(ARMaddc rGPR:$src, imm1_255_neg:$imm),
2310 (t2SUBSri rGPR:$src, imm1_255_neg:$imm)>;
2311 def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm),
2312 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
2313 def : T2Pat<(ARMaddc rGPR:$src, imm0_65535_neg:$imm),
2314 (t2SUBSrr rGPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
2315 // The with-carry-in form matches bitwise not instead of the negation.
2316 // Effectively, the inverse interpretation of the carry flag already accounts
2317 // for part of the negation.
2318 let AddedComplexity = 1 in
2319 def : T2Pat<(ARMadde rGPR:$src, imm0_255_not:$imm, CPSR),
2320 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
2321 def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR),
2322 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
2323 def : T2Pat<(ARMadde rGPR:$src, imm0_65535_neg:$imm, CPSR),
2324 (t2SBCrr rGPR:$src, (t2MOVi16 (imm_not_XFORM imm:$imm)))>;
2326 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2327 NoItinerary, "sel", "\t$Rd, $Rn, $Rm",
2328 [(set GPR:$Rd, (int_arm_sel GPR:$Rn, GPR:$Rm))]>,
2329 Requires<[IsThumb2, HasDSP]> {
2330 let Inst{31-27} = 0b11111;
2331 let Inst{26-24} = 0b010;
2333 let Inst{22-20} = 0b010;
2334 let Inst{15-12} = 0b1111;
2336 let Inst{6-4} = 0b000;
2339 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
2340 // And Miscellaneous operations -- for disassembly only
2341 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
2342 list<dag> pat, dag iops, string asm>
2343 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
2344 Requires<[IsThumb2, HasDSP]> {
2345 let Inst{31-27} = 0b11111;
2346 let Inst{26-23} = 0b0101;
2347 let Inst{22-20} = op22_20;
2348 let Inst{15-12} = 0b1111;
2349 let Inst{7-4} = op7_4;
2355 let Inst{11-8} = Rd;
2356 let Inst{19-16} = Rn;
2360 class T2I_pam_intrinsics<bits<3> op22_20, bits<4> op7_4, string opc,
2361 Intrinsic intrinsic>
2362 : T2I_pam<op22_20, op7_4, opc,
2363 [(set rGPR:$Rd, (intrinsic rGPR:$Rn, rGPR:$Rm))],
2364 (ins rGPR:$Rn, rGPR:$Rm), "\t$Rd, $Rn, $Rm">;
2366 class T2I_pam_intrinsics_rev<bits<3> op22_20, bits<4> op7_4, string opc>
2367 : T2I_pam<op22_20, op7_4, opc, [],
2368 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2370 // Saturating add/subtract
2371 def t2QADD16 : T2I_pam_intrinsics<0b001, 0b0001, "qadd16", int_arm_qadd16>;
2372 def t2QADD8 : T2I_pam_intrinsics<0b000, 0b0001, "qadd8", int_arm_qadd8>;
2373 def t2QASX : T2I_pam_intrinsics<0b010, 0b0001, "qasx", int_arm_qasx>;
2374 def t2UQSUB8 : T2I_pam_intrinsics<0b100, 0b0101, "uqsub8", int_arm_uqsub8>;
2375 def t2QSAX : T2I_pam_intrinsics<0b110, 0b0001, "qsax", int_arm_qsax>;
2376 def t2QSUB16 : T2I_pam_intrinsics<0b101, 0b0001, "qsub16", int_arm_qsub16>;
2377 def t2QSUB8 : T2I_pam_intrinsics<0b100, 0b0001, "qsub8", int_arm_qsub8>;
2378 def t2UQADD16 : T2I_pam_intrinsics<0b001, 0b0101, "uqadd16", int_arm_uqadd16>;
2379 def t2UQADD8 : T2I_pam_intrinsics<0b000, 0b0101, "uqadd8", int_arm_uqadd8>;
2380 def t2UQASX : T2I_pam_intrinsics<0b010, 0b0101, "uqasx", int_arm_uqasx>;
2381 def t2UQSAX : T2I_pam_intrinsics<0b110, 0b0101, "uqsax", int_arm_uqsax>;
2382 def t2UQSUB16 : T2I_pam_intrinsics<0b101, 0b0101, "uqsub16", int_arm_uqsub16>;
2383 def t2QADD : T2I_pam_intrinsics_rev<0b000, 0b1000, "qadd">;
2384 def t2QSUB : T2I_pam_intrinsics_rev<0b000, 0b1010, "qsub">;
2385 def t2QDADD : T2I_pam_intrinsics_rev<0b000, 0b1001, "qdadd">;
2386 def t2QDSUB : T2I_pam_intrinsics_rev<0b000, 0b1011, "qdsub">;
2388 def : Thumb2DSPPat<(int_arm_qadd rGPR:$Rm, rGPR:$Rn),
2389 (t2QADD rGPR:$Rm, rGPR:$Rn)>;
2390 def : Thumb2DSPPat<(int_arm_qsub rGPR:$Rm, rGPR:$Rn),
2391 (t2QSUB rGPR:$Rm, rGPR:$Rn)>;
2392 def : Thumb2DSPPat<(int_arm_qadd(int_arm_qadd rGPR:$Rm, rGPR:$Rm), rGPR:$Rn),
2393 (t2QDADD rGPR:$Rm, rGPR:$Rn)>;
2394 def : Thumb2DSPPat<(int_arm_qsub rGPR:$Rm, (int_arm_qadd rGPR:$Rn, rGPR:$Rn)),
2395 (t2QDSUB rGPR:$Rm, rGPR:$Rn)>;
2397 // Signed/Unsigned add/subtract
2399 def t2SASX : T2I_pam_intrinsics<0b010, 0b0000, "sasx", int_arm_sasx>;
2400 def t2SADD16 : T2I_pam_intrinsics<0b001, 0b0000, "sadd16", int_arm_sadd16>;
2401 def t2SADD8 : T2I_pam_intrinsics<0b000, 0b0000, "sadd8", int_arm_sadd8>;
2402 def t2SSAX : T2I_pam_intrinsics<0b110, 0b0000, "ssax", int_arm_ssax>;
2403 def t2SSUB16 : T2I_pam_intrinsics<0b101, 0b0000, "ssub16", int_arm_ssub16>;
2404 def t2SSUB8 : T2I_pam_intrinsics<0b100, 0b0000, "ssub8", int_arm_ssub8>;
2405 def t2UASX : T2I_pam_intrinsics<0b010, 0b0100, "uasx", int_arm_uasx>;
2406 def t2UADD16 : T2I_pam_intrinsics<0b001, 0b0100, "uadd16", int_arm_uadd16>;
2407 def t2UADD8 : T2I_pam_intrinsics<0b000, 0b0100, "uadd8", int_arm_uadd8>;
2408 def t2USAX : T2I_pam_intrinsics<0b110, 0b0100, "usax", int_arm_usax>;
2409 def t2USUB16 : T2I_pam_intrinsics<0b101, 0b0100, "usub16", int_arm_usub16>;
2410 def t2USUB8 : T2I_pam_intrinsics<0b100, 0b0100, "usub8", int_arm_usub8>;
2412 // Signed/Unsigned halving add/subtract
2414 def t2SHASX : T2I_pam_intrinsics<0b010, 0b0010, "shasx", int_arm_shasx>;
2415 def t2SHADD16 : T2I_pam_intrinsics<0b001, 0b0010, "shadd16", int_arm_shadd16>;
2416 def t2SHADD8 : T2I_pam_intrinsics<0b000, 0b0010, "shadd8", int_arm_shadd8>;
2417 def t2SHSAX : T2I_pam_intrinsics<0b110, 0b0010, "shsax", int_arm_shsax>;
2418 def t2SHSUB16 : T2I_pam_intrinsics<0b101, 0b0010, "shsub16", int_arm_shsub16>;
2419 def t2SHSUB8 : T2I_pam_intrinsics<0b100, 0b0010, "shsub8", int_arm_shsub8>;
2420 def t2UHASX : T2I_pam_intrinsics<0b010, 0b0110, "uhasx", int_arm_uhasx>;
2421 def t2UHADD16 : T2I_pam_intrinsics<0b001, 0b0110, "uhadd16", int_arm_uhadd16>;
2422 def t2UHADD8 : T2I_pam_intrinsics<0b000, 0b0110, "uhadd8", int_arm_uhadd8>;
2423 def t2UHSAX : T2I_pam_intrinsics<0b110, 0b0110, "uhsax", int_arm_uhsax>;
2424 def t2UHSUB16 : T2I_pam_intrinsics<0b101, 0b0110, "uhsub16", int_arm_uhsub16>;
2425 def t2UHSUB8 : T2I_pam_intrinsics<0b100, 0b0110, "uhsub8", int_arm_uhsub8>;
2427 // Helper class for disassembly only
2428 // A6.3.16 & A6.3.17
2429 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
2430 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2431 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2432 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2433 let Inst{31-27} = 0b11111;
2434 let Inst{26-24} = 0b011;
2435 let Inst{23} = long;
2436 let Inst{22-20} = op22_20;
2437 let Inst{7-4} = op7_4;
2440 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2441 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2442 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
2443 let Inst{31-27} = 0b11111;
2444 let Inst{26-24} = 0b011;
2445 let Inst{23} = long;
2446 let Inst{22-20} = op22_20;
2447 let Inst{7-4} = op7_4;
2450 // Unsigned Sum of Absolute Differences [and Accumulate].
2451 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2452 (ins rGPR:$Rn, rGPR:$Rm),
2453 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm",
2454 [(set rGPR:$Rd, (int_arm_usad8 rGPR:$Rn, rGPR:$Rm))]>,
2455 Requires<[IsThumb2, HasDSP]> {
2456 let Inst{15-12} = 0b1111;
2458 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2459 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
2460 "usada8", "\t$Rd, $Rn, $Rm, $Ra",
2461 [(set rGPR:$Rd, (int_arm_usada8 rGPR:$Rn, rGPR:$Rm, rGPR:$Ra))]>,
2462 Requires<[IsThumb2, HasDSP]>;
2464 // Signed/Unsigned saturate.
2465 let hasSideEffects = 1 in
2466 class T2SatI<dag iops, string opc, string asm>
2467 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, []> {
2473 let Inst{31-24} = 0b11110011;
2474 let Inst{21} = sh{5};
2476 let Inst{19-16} = Rn;
2478 let Inst{14-12} = sh{4-2};
2479 let Inst{11-8} = Rd;
2480 let Inst{7-6} = sh{1-0};
2482 let Inst{4-0} = sat_imm;
2485 def t2SSAT: T2SatI<(ins imm1_32:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2486 "ssat", "\t$Rd, $sat_imm, $Rn$sh">,
2487 Requires<[IsThumb2]>, Sched<[WriteALU]> {
2488 let Inst{23-22} = 0b00;
2492 def t2SSAT16: T2SatI<(ins imm1_16:$sat_imm, rGPR:$Rn),
2493 "ssat16", "\t$Rd, $sat_imm, $Rn">,
2494 Requires<[IsThumb2, HasDSP]>, Sched<[WriteALU]> {
2495 let Inst{23-22} = 0b00;
2500 def t2USAT: T2SatI<(ins imm0_31:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2501 "usat", "\t$Rd, $sat_imm, $Rn$sh">,
2502 Requires<[IsThumb2]>, Sched<[WriteALU]> {
2503 let Inst{23-22} = 0b10;
2506 def t2USAT16: T2SatI<(ins imm0_15:$sat_imm, rGPR:$Rn),
2507 "usat16", "\t$Rd, $sat_imm, $Rn">,
2508 Requires<[IsThumb2, HasDSP]>, Sched<[WriteALU]> {
2509 let Inst{23-22} = 0b10;
2514 def : T2Pat<(ARMssatnoshift GPRnopc:$Rn, imm0_31:$imm),
2515 (t2SSAT imm0_31:$imm, GPRnopc:$Rn, 0)>;
2516 def : T2Pat<(ARMusatnoshift GPRnopc:$Rn, imm0_31:$imm),
2517 (t2USAT imm0_31:$imm, GPRnopc:$Rn, 0)>;
2518 def : T2Pat<(int_arm_ssat GPR:$a, imm1_32:$pos),
2519 (t2SSAT imm1_32:$pos, GPR:$a, 0)>;
2520 def : T2Pat<(int_arm_usat GPR:$a, imm0_31:$pos),
2521 (t2USAT imm0_31:$pos, GPR:$a, 0)>;
2522 def : T2Pat<(int_arm_ssat16 GPR:$a, imm1_16:$pos),
2523 (t2SSAT16 imm1_16:$pos, GPR:$a)>;
2524 def : T2Pat<(int_arm_usat16 GPR:$a, imm0_15:$pos),
2525 (t2USAT16 imm0_15:$pos, GPR:$a)>;
2527 //===----------------------------------------------------------------------===//
2528 // Shift and rotate Instructions.
2531 defm t2LSL : T2I_sh_ir<0b00, "lsl", imm1_31, shl>;
2532 defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr, srl>;
2533 defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr, sra>;
2534 defm t2ROR : T2I_sh_ir<0b11, "ror", imm0_31, rotr>;
2536 // LSL #0 is actually MOV, and has slightly different permitted registers to
2537 // LSL with non-zero shift
2538 def : t2InstAlias<"lsl${s}${p} $Rd, $Rm, #0",
2539 (t2MOVr GPRnopc:$Rd, GPRnopc:$Rm, pred:$p, cc_out:$s)>;
2540 def : t2InstAlias<"lsl${s}${p}.w $Rd, $Rm, #0",
2541 (t2MOVr GPRnopc:$Rd, GPRnopc:$Rm, pred:$p, cc_out:$s)>;
2543 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
2544 def : T2Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
2545 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
2547 let Uses = [CPSR] in {
2548 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2549 "rrx", "\t$Rd, $Rm",
2550 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]>, Sched<[WriteALU]> {
2551 let Inst{31-27} = 0b11101;
2552 let Inst{26-25} = 0b01;
2553 let Inst{24-21} = 0b0010;
2554 let Inst{19-16} = 0b1111; // Rn
2556 let Unpredictable{15} = 0b1;
2557 let Inst{14-12} = 0b000;
2558 let Inst{7-4} = 0b0011;
2562 let isCodeGenOnly = 1, Defs = [CPSR] in {
2563 def t2MOVsrl_flag : T2TwoRegShiftImm<
2564 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2565 "lsrs", ".w\t$Rd, $Rm, #1",
2566 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]>,
2568 let Inst{31-27} = 0b11101;
2569 let Inst{26-25} = 0b01;
2570 let Inst{24-21} = 0b0010;
2571 let Inst{20} = 1; // The S bit.
2572 let Inst{19-16} = 0b1111; // Rn
2573 let Inst{5-4} = 0b01; // Shift type.
2574 // Shift amount = Inst{14-12:7-6} = 1.
2575 let Inst{14-12} = 0b000;
2576 let Inst{7-6} = 0b01;
2578 def t2MOVsra_flag : T2TwoRegShiftImm<
2579 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2580 "asrs", ".w\t$Rd, $Rm, #1",
2581 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]>,
2583 let Inst{31-27} = 0b11101;
2584 let Inst{26-25} = 0b01;
2585 let Inst{24-21} = 0b0010;
2586 let Inst{20} = 1; // The S bit.
2587 let Inst{19-16} = 0b1111; // Rn
2588 let Inst{5-4} = 0b10; // Shift type.
2589 // Shift amount = Inst{14-12:7-6} = 1.
2590 let Inst{14-12} = 0b000;
2591 let Inst{7-6} = 0b01;
2595 //===----------------------------------------------------------------------===//
2596 // Bitwise Instructions.
2599 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2600 IIC_iBITi, IIC_iBITr, IIC_iBITsi, and, 1>;
2601 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2602 IIC_iBITi, IIC_iBITr, IIC_iBITsi, or, 1>;
2603 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2604 IIC_iBITi, IIC_iBITr, IIC_iBITsi, xor, 1>;
2606 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2607 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2608 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2610 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2611 string opc, string asm, list<dag> pattern>
2612 : T2I<oops, iops, itin, opc, asm, pattern> {
2617 let Inst{11-8} = Rd;
2618 let Inst{4-0} = msb{4-0};
2619 let Inst{14-12} = lsb{4-2};
2620 let Inst{7-6} = lsb{1-0};
2623 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2624 string opc, string asm, list<dag> pattern>
2625 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2628 let Inst{19-16} = Rn;
2631 let Constraints = "$src = $Rd" in
2632 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2633 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2634 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]>, Sched<[WriteALU]> {
2635 let Inst{31-27} = 0b11110;
2636 let Inst{26} = 0; // should be 0.
2638 let Inst{24-20} = 0b10110;
2639 let Inst{19-16} = 0b1111; // Rn
2641 let Inst{5} = 0; // should be 0.
2644 let msb{4-0} = imm{9-5};
2645 let lsb{4-0} = imm{4-0};
2648 def t2SBFX: T2TwoRegBitFI<
2649 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2650 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []>, Sched<[WriteALU]> {
2651 let Inst{31-27} = 0b11110;
2653 let Inst{24-20} = 0b10100;
2657 def t2UBFX: T2TwoRegBitFI<
2658 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2659 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []>, Sched<[WriteALU]> {
2660 let Inst{31-27} = 0b11110;
2662 let Inst{24-20} = 0b11100;
2666 // A8.8.247 UDF - Undefined (Encoding T2)
2667 def t2UDF : T2XI<(outs), (ins imm0_65535:$imm16), IIC_Br, "udf.w\t$imm16",
2668 [(int_arm_undefined imm0_65535:$imm16)]> {
2670 let Inst{31-29} = 0b111;
2671 let Inst{28-27} = 0b10;
2672 let Inst{26-20} = 0b1111111;
2673 let Inst{19-16} = imm16{15-12};
2675 let Inst{14-12} = 0b010;
2676 let Inst{11-0} = imm16{11-0};
2679 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2680 let Constraints = "$src = $Rd" in {
2681 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2682 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2683 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2684 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2685 bf_inv_mask_imm:$imm))]>, Sched<[WriteALU]> {
2686 let Inst{31-27} = 0b11110;
2687 let Inst{26} = 0; // should be 0.
2689 let Inst{24-20} = 0b10110;
2691 let Inst{5} = 0; // should be 0.
2694 let msb{4-0} = imm{9-5};
2695 let lsb{4-0} = imm{4-0};
2699 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2700 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2701 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2703 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
2704 /// unary operation that produces a value. These are predicable and can be
2705 /// changed to modify CPSR.
2706 multiclass T2I_un_irs<bits<4> opcod, string opc,
2707 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
2709 bit Cheap = 0, bit ReMat = 0, bit MoveImm = 0> {
2711 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
2713 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]>, Sched<[WriteALU]> {
2714 let isAsCheapAsAMove = Cheap;
2715 let isReMaterializable = ReMat;
2716 let isMoveImm = MoveImm;
2717 let Inst{31-27} = 0b11110;
2719 let Inst{24-21} = opcod;
2720 let Inst{19-16} = 0b1111; // Rn
2724 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
2725 opc, ".w\t$Rd, $Rm",
2726 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>, Sched<[WriteALU]> {
2727 let Inst{31-27} = 0b11101;
2728 let Inst{26-25} = 0b01;
2729 let Inst{24-21} = opcod;
2730 let Inst{19-16} = 0b1111; // Rn
2731 let Inst{14-12} = 0b000; // imm3
2732 let Inst{7-6} = 0b00; // imm2
2733 let Inst{5-4} = 0b00; // type
2736 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
2737 opc, ".w\t$Rd, $ShiftedRm",
2738 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]>,
2740 let Inst{31-27} = 0b11101;
2741 let Inst{26-25} = 0b01;
2742 let Inst{24-21} = opcod;
2743 let Inst{19-16} = 0b1111; // Rn
2747 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2748 let AddedComplexity = 1 in
2749 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2750 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2753 let AddedComplexity = 1 in
2754 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2755 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2757 // top16Zero - answer true if the upper 16 bits of $src are 0, false otherwise
2758 def top16Zero: PatLeaf<(i32 rGPR:$src), [{
2759 return !SDValue(N,0)->getValueType(0).isVector() &&
2760 CurDAG->MaskedValueIsZero(SDValue(N,0), APInt::getHighBitsSet(32, 16));
2763 // so_imm_notSext is needed instead of so_imm_not, as the value of imm
2764 // will match the extended, not the original bitWidth for $src.
2765 def : T2Pat<(and top16Zero:$src, t2_so_imm_notSext:$imm),
2766 (t2BICri rGPR:$src, t2_so_imm_notSext:$imm)>;
2769 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2770 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2771 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2772 Requires<[IsThumb2]>;
2774 def : T2Pat<(t2_so_imm_not:$src),
2775 (t2MVNi t2_so_imm_not:$src)>;
2777 // There are shorter Thumb encodings for ADD than ORR, so to increase
2778 // Thumb2SizeReduction's chances later on we select a t2ADD for an or where
2780 def : T2Pat<(or AddLikeOrOp:$Rn, t2_so_imm:$imm),
2781 (t2ADDri $Rn, t2_so_imm:$imm)>;
2783 def : T2Pat<(or AddLikeOrOp:$Rn, imm0_4095:$Rm),
2784 (t2ADDri12 $Rn, imm0_4095:$Rm)>;
2786 def : T2Pat<(or AddLikeOrOp:$Rn, non_imm32:$Rm),
2787 (t2ADDrr $Rn, $Rm)>;
2789 //===----------------------------------------------------------------------===//
2790 // Multiply Instructions.
2792 let isCommutable = 1 in
2793 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2794 "mul", "\t$Rd, $Rn, $Rm",
2795 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]>,
2796 Sched<[WriteMUL32, ReadMUL, ReadMUL]> {
2797 let Inst{31-27} = 0b11111;
2798 let Inst{26-23} = 0b0110;
2799 let Inst{22-20} = 0b000;
2800 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2801 let Inst{7-4} = 0b0000; // Multiply
2804 class T2FourRegMLA<bits<4> op7_4, string opc, list<dag> pattern>
2805 : T2FourReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2806 opc, "\t$Rd, $Rn, $Rm, $Ra", pattern>,
2807 Requires<[IsThumb2, UseMulOps]>,
2808 Sched<[WriteMAC32, ReadMUL, ReadMUL, ReadMAC]> {
2809 let Inst{31-27} = 0b11111;
2810 let Inst{26-23} = 0b0110;
2811 let Inst{22-20} = 0b000;
2812 let Inst{7-4} = op7_4;
2815 def t2MLA : T2FourRegMLA<0b0000, "mla",
2816 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm),
2818 def t2MLS: T2FourRegMLA<0b0001, "mls",
2819 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn,
2822 // Extra precision multiplies with low / high results
2823 let hasSideEffects = 0 in {
2824 let isCommutable = 1 in {
2825 def t2SMULL : T2MulLong<0b000, 0b0000, "smull",
2826 [(set rGPR:$RdLo, rGPR:$RdHi,
2827 (smullohi rGPR:$Rn, rGPR:$Rm))]>;
2828 def t2UMULL : T2MulLong<0b010, 0b0000, "umull",
2829 [(set rGPR:$RdLo, rGPR:$RdHi,
2830 (umullohi rGPR:$Rn, rGPR:$Rm))]>;
2833 // Multiply + accumulate
2834 def t2SMLAL : T2MlaLong<0b100, 0b0000, "smlal">;
2835 def t2UMLAL : T2MlaLong<0b110, 0b0000, "umlal">;
2836 def t2UMAAL : T2MlaLong<0b110, 0b0110, "umaal">, Requires<[IsThumb2, HasDSP]>;
2839 // Rounding variants of the below included for disassembly only
2841 // Most significant word multiply
2842 class T2SMMUL<bits<4> op7_4, string opc, list<dag> pattern>
2843 : T2ThreeReg<(outs rGPR:$Rd),
2844 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2845 opc, "\t$Rd, $Rn, $Rm", pattern>,
2846 Requires<[IsThumb2, HasDSP]>,
2847 Sched<[WriteMUL32, ReadMUL, ReadMUL]> {
2848 let Inst{31-27} = 0b11111;
2849 let Inst{26-23} = 0b0110;
2850 let Inst{22-20} = 0b101;
2851 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2852 let Inst{7-4} = op7_4;
2854 def t2SMMUL : T2SMMUL<0b0000, "smmul", [(set rGPR:$Rd, (mulhs rGPR:$Rn,
2857 T2SMMUL<0b0001, "smmulr",
2858 [(set rGPR:$Rd, (ARMsmmlar rGPR:$Rn, rGPR:$Rm, (i32 0)))]>;
2860 class T2FourRegSMMLA<bits<3> op22_20, bits<4> op7_4, string opc,
2862 : T2FourReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2863 opc, "\t$Rd, $Rn, $Rm, $Ra", pattern>,
2864 Requires<[IsThumb2, HasDSP, UseMulOps]>,
2865 Sched<[WriteMAC32, ReadMUL, ReadMUL, ReadMAC]> {
2866 let Inst{31-27} = 0b11111;
2867 let Inst{26-23} = 0b0110;
2868 let Inst{22-20} = op22_20;
2869 let Inst{7-4} = op7_4;
2872 def t2SMMLA : T2FourRegSMMLA<0b101, 0b0000, "smmla",
2873 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>;
2874 def t2SMMLAR: T2FourRegSMMLA<0b101, 0b0001, "smmlar",
2875 [(set rGPR:$Rd, (ARMsmmlar rGPR:$Rn, rGPR:$Rm, rGPR:$Ra))]>;
2876 def t2SMMLS: T2FourRegSMMLA<0b110, 0b0000, "smmls", []>;
2877 def t2SMMLSR: T2FourRegSMMLA<0b110, 0b0001, "smmlsr",
2878 [(set rGPR:$Rd, (ARMsmmlsr rGPR:$Rn, rGPR:$Rm, rGPR:$Ra))]>;
2880 class T2ThreeRegSMUL<bits<3> op22_20, bits<2> op5_4, string opc,
2882 : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16, opc,
2883 "\t$Rd, $Rn, $Rm", pattern>,
2884 Requires<[IsThumb2, HasDSP]>,
2885 Sched<[WriteMUL16, ReadMUL, ReadMUL]> {
2886 let Inst{31-27} = 0b11111;
2887 let Inst{26-23} = 0b0110;
2888 let Inst{22-20} = op22_20;
2889 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2890 let Inst{7-6} = 0b00;
2891 let Inst{5-4} = op5_4;
2894 def t2SMULBB : T2ThreeRegSMUL<0b001, 0b00, "smulbb",
2895 [(set rGPR:$Rd, (bb_mul rGPR:$Rn, rGPR:$Rm))]>;
2896 def t2SMULBT : T2ThreeRegSMUL<0b001, 0b01, "smulbt",
2897 [(set rGPR:$Rd, (bt_mul rGPR:$Rn, rGPR:$Rm))]>;
2898 def t2SMULTB : T2ThreeRegSMUL<0b001, 0b10, "smultb",
2899 [(set rGPR:$Rd, (tb_mul rGPR:$Rn, rGPR:$Rm))]>;
2900 def t2SMULTT : T2ThreeRegSMUL<0b001, 0b11, "smultt",
2901 [(set rGPR:$Rd, (tt_mul rGPR:$Rn, rGPR:$Rm))]>;
2902 def t2SMULWB : T2ThreeRegSMUL<0b011, 0b00, "smulwb",
2903 [(set rGPR:$Rd, (ARMsmulwb rGPR:$Rn, rGPR:$Rm))]>;
2904 def t2SMULWT : T2ThreeRegSMUL<0b011, 0b01, "smulwt",
2905 [(set rGPR:$Rd, (ARMsmulwt rGPR:$Rn, rGPR:$Rm))]>;
2907 def : Thumb2DSPPat<(mul sext_16_node:$Rn, (sext_bottom_16 rGPR:$Rm)),
2908 (t2SMULBB rGPR:$Rn, rGPR:$Rm)>;
2909 def : Thumb2DSPPat<(mul sext_16_node:$Rn, (sext_top_16 rGPR:$Rm)),
2910 (t2SMULBT rGPR:$Rn, rGPR:$Rm)>;
2911 def : Thumb2DSPPat<(mul (sext_top_16 rGPR:$Rn), sext_16_node:$Rm),
2912 (t2SMULTB rGPR:$Rn, rGPR:$Rm)>;
2914 def : Thumb2DSPPat<(int_arm_smulbb rGPR:$Rn, rGPR:$Rm),
2915 (t2SMULBB rGPR:$Rn, rGPR:$Rm)>;
2916 def : Thumb2DSPPat<(int_arm_smulbt rGPR:$Rn, rGPR:$Rm),
2917 (t2SMULBT rGPR:$Rn, rGPR:$Rm)>;
2918 def : Thumb2DSPPat<(int_arm_smultb rGPR:$Rn, rGPR:$Rm),
2919 (t2SMULTB rGPR:$Rn, rGPR:$Rm)>;
2920 def : Thumb2DSPPat<(int_arm_smultt rGPR:$Rn, rGPR:$Rm),
2921 (t2SMULTT rGPR:$Rn, rGPR:$Rm)>;
2922 def : Thumb2DSPPat<(int_arm_smulwb rGPR:$Rn, rGPR:$Rm),
2923 (t2SMULWB rGPR:$Rn, rGPR:$Rm)>;
2924 def : Thumb2DSPPat<(int_arm_smulwt rGPR:$Rn, rGPR:$Rm),
2925 (t2SMULWT rGPR:$Rn, rGPR:$Rm)>;
2927 class T2FourRegSMLA<bits<3> op22_20, bits<2> op5_4, string opc,
2929 : T2FourReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMUL16,
2930 opc, "\t$Rd, $Rn, $Rm, $Ra", pattern>,
2931 Requires<[IsThumb2, HasDSP, UseMulOps]>,
2932 Sched<[WriteMAC16, ReadMUL, ReadMUL, ReadMAC]> {
2933 let Inst{31-27} = 0b11111;
2934 let Inst{26-23} = 0b0110;
2935 let Inst{22-20} = op22_20;
2936 let Inst{7-6} = 0b00;
2937 let Inst{5-4} = op5_4;
2940 def t2SMLABB : T2FourRegSMLA<0b001, 0b00, "smlabb",
2941 [(set rGPR:$Rd, (add rGPR:$Ra, (bb_mul rGPR:$Rn, rGPR:$Rm)))]>;
2942 def t2SMLABT : T2FourRegSMLA<0b001, 0b01, "smlabt",
2943 [(set rGPR:$Rd, (add rGPR:$Ra, (bt_mul rGPR:$Rn, rGPR:$Rm)))]>;
2944 def t2SMLATB : T2FourRegSMLA<0b001, 0b10, "smlatb",
2945 [(set rGPR:$Rd, (add rGPR:$Ra, (tb_mul rGPR:$Rn, rGPR:$Rm)))]>;
2946 def t2SMLATT : T2FourRegSMLA<0b001, 0b11, "smlatt",
2947 [(set rGPR:$Rd, (add rGPR:$Ra, (tt_mul rGPR:$Rn, rGPR:$Rm)))]>;
2948 def t2SMLAWB : T2FourRegSMLA<0b011, 0b00, "smlawb",
2949 [(set rGPR:$Rd, (add rGPR:$Ra, (ARMsmulwb rGPR:$Rn, rGPR:$Rm)))]>;
2950 def t2SMLAWT : T2FourRegSMLA<0b011, 0b01, "smlawt",
2951 [(set rGPR:$Rd, (add rGPR:$Ra, (ARMsmulwt rGPR:$Rn, rGPR:$Rm)))]>;
2953 def : Thumb2DSPMulPat<(add rGPR:$Ra, (mul sext_16_node:$Rn, sext_16_node:$Rm)),
2954 (t2SMLABB rGPR:$Rn, rGPR:$Rm, rGPR:$Ra)>;
2955 def : Thumb2DSPMulPat<(add rGPR:$Ra, (mul sext_16_node:$Rn,
2956 (sext_bottom_16 rGPR:$Rm))),
2957 (t2SMLABB rGPR:$Rn, rGPR:$Rm, rGPR:$Ra)>;
2958 def : Thumb2DSPMulPat<(add rGPR:$Ra, (mul sext_16_node:$Rn,
2959 (sext_top_16 rGPR:$Rm))),
2960 (t2SMLABT rGPR:$Rn, rGPR:$Rm, rGPR:$Ra)>;
2961 def : Thumb2DSPMulPat<(add rGPR:$Ra, (mul (sext_top_16 rGPR:$Rn),
2963 (t2SMLATB rGPR:$Rn, rGPR:$Rm, rGPR:$Ra)>;
2965 def : Thumb2DSPPat<(int_arm_smlabb GPR:$a, GPR:$b, GPR:$acc),
2966 (t2SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
2967 def : Thumb2DSPPat<(int_arm_smlabt GPR:$a, GPR:$b, GPR:$acc),
2968 (t2SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
2969 def : Thumb2DSPPat<(int_arm_smlatb GPR:$a, GPR:$b, GPR:$acc),
2970 (t2SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
2971 def : Thumb2DSPPat<(int_arm_smlatt GPR:$a, GPR:$b, GPR:$acc),
2972 (t2SMLATT GPR:$a, GPR:$b, GPR:$acc)>;
2973 def : Thumb2DSPPat<(int_arm_smlawb GPR:$a, GPR:$b, GPR:$acc),
2974 (t2SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
2975 def : Thumb2DSPPat<(int_arm_smlawt GPR:$a, GPR:$b, GPR:$acc),
2976 (t2SMLAWT GPR:$a, GPR:$b, GPR:$acc)>;
2978 // Halfword multiple accumulate long: SMLAL<x><y>
2979 def t2SMLALBB : T2MlaLong<0b100, 0b1000, "smlalbb">,
2980 Requires<[IsThumb2, HasDSP]>;
2981 def t2SMLALBT : T2MlaLong<0b100, 0b1001, "smlalbt">,
2982 Requires<[IsThumb2, HasDSP]>;
2983 def t2SMLALTB : T2MlaLong<0b100, 0b1010, "smlaltb">,
2984 Requires<[IsThumb2, HasDSP]>;
2985 def t2SMLALTT : T2MlaLong<0b100, 0b1011, "smlaltt">,
2986 Requires<[IsThumb2, HasDSP]>;
2988 def : Thumb2DSPPat<(ARMsmlalbb GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi),
2989 (t2SMLALBB $Rn, $Rm, $RLo, $RHi)>;
2990 def : Thumb2DSPPat<(ARMsmlalbt GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi),
2991 (t2SMLALBT $Rn, $Rm, $RLo, $RHi)>;
2992 def : Thumb2DSPPat<(ARMsmlaltb GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi),
2993 (t2SMLALTB $Rn, $Rm, $RLo, $RHi)>;
2994 def : Thumb2DSPPat<(ARMsmlaltt GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi),
2995 (t2SMLALTT $Rn, $Rm, $RLo, $RHi)>;
2997 class T2DualHalfMul<bits<3> op22_20, bits<4> op7_4, string opc,
2998 Intrinsic intrinsic>
2999 : T2ThreeReg_mac<0, op22_20, op7_4,
3001 (ins rGPR:$Rn, rGPR:$Rm),
3002 IIC_iMAC32, opc, "\t$Rd, $Rn, $Rm",
3003 [(set rGPR:$Rd, (intrinsic rGPR:$Rn, rGPR:$Rm))]>,
3004 Requires<[IsThumb2, HasDSP]>,
3005 Sched<[WriteMAC32, ReadMUL, ReadMUL, ReadMAC]> {
3006 let Inst{15-12} = 0b1111;
3009 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
3010 def t2SMUAD: T2DualHalfMul<0b010, 0b0000, "smuad", int_arm_smuad>;
3011 def t2SMUADX: T2DualHalfMul<0b010, 0b0001, "smuadx", int_arm_smuadx>;
3012 def t2SMUSD: T2DualHalfMul<0b100, 0b0000, "smusd", int_arm_smusd>;
3013 def t2SMUSDX: T2DualHalfMul<0b100, 0b0001, "smusdx", int_arm_smusdx>;
3015 class T2DualHalfMulAdd<bits<3> op22_20, bits<4> op7_4, string opc,
3016 Intrinsic intrinsic>
3017 : T2FourReg_mac<0, op22_20, op7_4,
3019 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra),
3020 IIC_iMAC32, opc, "\t$Rd, $Rn, $Rm, $Ra",
3021 [(set rGPR:$Rd, (intrinsic rGPR:$Rn, rGPR:$Rm, rGPR:$Ra))]>,
3022 Requires<[IsThumb2, HasDSP]>;
3024 def t2SMLAD : T2DualHalfMulAdd<0b010, 0b0000, "smlad", int_arm_smlad>;
3025 def t2SMLADX : T2DualHalfMulAdd<0b010, 0b0001, "smladx", int_arm_smladx>;
3026 def t2SMLSD : T2DualHalfMulAdd<0b100, 0b0000, "smlsd", int_arm_smlsd>;
3027 def t2SMLSDX : T2DualHalfMulAdd<0b100, 0b0001, "smlsdx", int_arm_smlsdx>;
3029 class T2DualHalfMulAddLong<bits<3> op22_20, bits<4> op7_4, string opc>
3030 : T2FourReg_mac<1, op22_20, op7_4,
3031 (outs rGPR:$Ra, rGPR:$Rd),
3032 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi),
3033 IIC_iMAC64, opc, "\t$Ra, $Rd, $Rn, $Rm", []>,
3034 RegConstraint<"$Ra = $RLo, $Rd = $RHi">,
3035 Requires<[IsThumb2, HasDSP]>,
3036 Sched<[WriteMAC64Lo, WriteMAC64Hi, ReadMUL, ReadMUL, ReadMAC, ReadMAC]>;
3038 def t2SMLALD : T2DualHalfMulAddLong<0b100, 0b1100, "smlald">;
3039 def t2SMLALDX : T2DualHalfMulAddLong<0b100, 0b1101, "smlaldx">;
3040 def t2SMLSLD : T2DualHalfMulAddLong<0b101, 0b1100, "smlsld">;
3041 def t2SMLSLDX : T2DualHalfMulAddLong<0b101, 0b1101, "smlsldx">;
3043 def : Thumb2DSPPat<(ARMSmlald rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi),
3044 (t2SMLALD rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi)>;
3045 def : Thumb2DSPPat<(ARMSmlaldx rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi),
3046 (t2SMLALDX rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi)>;
3047 def : Thumb2DSPPat<(ARMSmlsld rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi),
3048 (t2SMLSLD rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi)>;
3049 def : Thumb2DSPPat<(ARMSmlsldx rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi),
3050 (t2SMLSLDX rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi)>;
3052 //===----------------------------------------------------------------------===//
3053 // Division Instructions.
3054 // Signed and unsigned division on v7-M
3056 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV,
3057 "sdiv", "\t$Rd, $Rn, $Rm",
3058 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
3059 Requires<[HasDivideInThumb, IsThumb, HasV8MBaseline]>,
3061 let Inst{31-27} = 0b11111;
3062 let Inst{26-21} = 0b011100;
3064 let Inst{15-12} = 0b1111;
3065 let Inst{7-4} = 0b1111;
3068 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV,
3069 "udiv", "\t$Rd, $Rn, $Rm",
3070 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
3071 Requires<[HasDivideInThumb, IsThumb, HasV8MBaseline]>,
3073 let Inst{31-27} = 0b11111;
3074 let Inst{26-21} = 0b011101;
3076 let Inst{15-12} = 0b1111;
3077 let Inst{7-4} = 0b1111;
3080 //===----------------------------------------------------------------------===//
3081 // Misc. Arithmetic Instructions.
3084 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
3085 InstrItinClass itin, string opc, string asm, list<dag> pattern>
3086 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
3087 let Inst{31-27} = 0b11111;
3088 let Inst{26-22} = 0b01010;
3089 let Inst{21-20} = op1;
3090 let Inst{15-12} = 0b1111;
3091 let Inst{7-6} = 0b10;
3092 let Inst{5-4} = op2;
3096 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
3097 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>,
3100 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
3101 "rbit", "\t$Rd, $Rm",
3102 [(set rGPR:$Rd, (bitreverse rGPR:$Rm))]>,
3105 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
3106 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>,
3109 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
3110 "rev16", ".w\t$Rd, $Rm",
3111 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>,
3114 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
3115 "revsh", ".w\t$Rd, $Rm",
3116 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>,
3119 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
3120 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
3121 (t2REVSH rGPR:$Rm)>;
3123 def t2PKHBT : T2ThreeReg<
3124 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_lsl_amt:$sh),
3125 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
3126 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
3127 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
3129 Requires<[HasDSP, IsThumb2]>,
3130 Sched<[WriteALUsi, ReadALU]> {
3131 let Inst{31-27} = 0b11101;
3132 let Inst{26-25} = 0b01;
3133 let Inst{24-20} = 0b01100;
3134 let Inst{5} = 0; // BT form
3138 let Inst{14-12} = sh{4-2};
3139 let Inst{7-6} = sh{1-0};
3142 // Alternate cases for PKHBT where identities eliminate some nodes.
3143 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
3144 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
3145 Requires<[HasDSP, IsThumb2]>;
3146 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
3147 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
3148 Requires<[HasDSP, IsThumb2]>;
3150 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
3151 // will match the pattern below.
3152 def t2PKHTB : T2ThreeReg<
3153 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_asr_amt:$sh),
3154 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
3155 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
3156 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
3158 Requires<[HasDSP, IsThumb2]>,
3159 Sched<[WriteALUsi, ReadALU]> {
3160 let Inst{31-27} = 0b11101;
3161 let Inst{26-25} = 0b01;
3162 let Inst{24-20} = 0b01100;
3163 let Inst{5} = 1; // TB form
3167 let Inst{14-12} = sh{4-2};
3168 let Inst{7-6} = sh{1-0};
3171 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
3172 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
3173 // We also can not replace a srl (17..31) by an arithmetic shift we would use in
3174 // pkhtb src1, src2, asr (17..31).
3175 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16:$sh)),
3176 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16:$sh)>,
3177 Requires<[HasDSP, IsThumb2]>;
3178 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (sra rGPR:$src2, imm16_31:$sh)),
3179 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
3180 Requires<[HasDSP, IsThumb2]>;
3181 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
3182 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
3183 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
3184 Requires<[HasDSP, IsThumb2]>;
3186 //===----------------------------------------------------------------------===//
3187 // CRC32 Instructions
3190 // + CRC32{B,H,W} 0x04C11DB7
3191 // + CRC32C{B,H,W} 0x1EDC6F41
3194 class T2I_crc32<bit C, bits<2> sz, string suffix, SDPatternOperator builtin>
3195 : T2ThreeRegNoP<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), NoItinerary,
3196 !strconcat("crc32", suffix, "\t$Rd, $Rn, $Rm"),
3197 [(set rGPR:$Rd, (builtin rGPR:$Rn, rGPR:$Rm))]>,
3198 Requires<[IsThumb2, HasV8, HasCRC]> {
3199 let Inst{31-27} = 0b11111;
3200 let Inst{26-21} = 0b010110;
3202 let Inst{15-12} = 0b1111;
3203 let Inst{7-6} = 0b10;
3207 def t2CRC32B : T2I_crc32<0, 0b00, "b", int_arm_crc32b>;
3208 def t2CRC32CB : T2I_crc32<1, 0b00, "cb", int_arm_crc32cb>;
3209 def t2CRC32H : T2I_crc32<0, 0b01, "h", int_arm_crc32h>;
3210 def t2CRC32CH : T2I_crc32<1, 0b01, "ch", int_arm_crc32ch>;
3211 def t2CRC32W : T2I_crc32<0, 0b10, "w", int_arm_crc32w>;
3212 def t2CRC32CW : T2I_crc32<1, 0b10, "cw", int_arm_crc32cw>;
3214 //===----------------------------------------------------------------------===//
3215 // Comparison Instructions...
3217 defm t2CMP : T2I_cmp_irs<0b1101, "cmp", GPRnopc,
3218 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi, ARMcmp>;
3220 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm),
3221 (t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>;
3222 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, rGPR:$rhs),
3223 (t2CMPrr GPRnopc:$lhs, rGPR:$rhs)>;
3224 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg:$rhs),
3225 (t2CMPrs GPRnopc:$lhs, t2_so_reg:$rhs)>;
3227 let isCompare = 1, Defs = [CPSR] in {
3229 def t2CMNri : T2OneRegCmpImm<
3230 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iCMPi,
3231 "cmn", ".w\t$Rn, $imm",
3232 [(ARMcmn GPRnopc:$Rn, (ineg t2_so_imm:$imm))]>,
3233 Sched<[WriteCMP, ReadALU]> {
3234 let Inst{31-27} = 0b11110;
3236 let Inst{24-21} = 0b1000;
3237 let Inst{20} = 1; // The S bit.
3239 let Inst{11-8} = 0b1111; // Rd
3242 def t2CMNzrr : T2TwoRegCmp<
3243 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iCMPr,
3244 "cmn", ".w\t$Rn, $Rm",
3245 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
3246 GPRnopc:$Rn, rGPR:$Rm)]>, Sched<[WriteCMP, ReadALU, ReadALU]> {
3247 let Inst{31-27} = 0b11101;
3248 let Inst{26-25} = 0b01;
3249 let Inst{24-21} = 0b1000;
3250 let Inst{20} = 1; // The S bit.
3251 let Inst{14-12} = 0b000; // imm3
3252 let Inst{11-8} = 0b1111; // Rd
3253 let Inst{7-6} = 0b00; // imm2
3254 let Inst{5-4} = 0b00; // type
3257 def t2CMNzrs : T2OneRegCmpShiftedReg<
3258 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), IIC_iCMPsi,
3259 "cmn", ".w\t$Rn, $ShiftedRm",
3260 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
3261 GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]>,
3262 Sched<[WriteCMPsi, ReadALU, ReadALU]> {
3263 let Inst{31-27} = 0b11101;
3264 let Inst{26-25} = 0b01;
3265 let Inst{24-21} = 0b1000;
3266 let Inst{20} = 1; // The S bit.
3267 let Inst{11-8} = 0b1111; // Rd
3271 // Assembler aliases w/o the ".w" suffix.
3272 // No alias here for 'rr' version as not all instantiations of this multiclass
3273 // want one (CMP in particular, does not).
3274 def : t2InstAlias<"cmn${p} $Rn, $imm",
3275 (t2CMNri GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>;
3276 def : t2InstAlias<"cmn${p} $Rn, $shift",
3277 (t2CMNzrs GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>;
3279 def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
3280 (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
3282 def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
3283 (t2CMNri GPRnopc:$src, t2_so_imm_neg:$imm)>;
3285 defm t2TST : T2I_cmp_irs<0b0000, "tst", rGPR,
3286 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
3287 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
3288 defm t2TEQ : T2I_cmp_irs<0b0100, "teq", rGPR,
3289 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
3290 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
3292 // Conditional moves
3293 let hasSideEffects = 0 in {
3295 let isCommutable = 1, isSelect = 1 in
3296 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
3297 (ins rGPR:$false, rGPR:$Rm, cmovpred:$p),
3299 [(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm,
3301 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
3303 let isMoveImm = 1 in
3305 : t2PseudoInst<(outs rGPR:$Rd),
3306 (ins rGPR:$false, t2_so_imm:$imm, cmovpred:$p),
3308 [(set rGPR:$Rd, (ARMcmov rGPR:$false,t2_so_imm:$imm,
3310 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
3312 let isCodeGenOnly = 1 in {
3313 let isMoveImm = 1 in
3315 : t2PseudoInst<(outs rGPR:$Rd),
3316 (ins rGPR:$false, imm0_65535_expr:$imm, cmovpred:$p),
3318 [(set rGPR:$Rd, (ARMcmov rGPR:$false, imm0_65535:$imm,
3320 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
3322 let isMoveImm = 1 in
3324 : t2PseudoInst<(outs rGPR:$Rd),
3325 (ins rGPR:$false, t2_so_imm:$imm, cmovpred:$p),
3328 (ARMcmov rGPR:$false, t2_so_imm_not:$imm,
3330 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
3332 class MOVCCShPseudo<SDPatternOperator opnode, Operand ty>
3333 : t2PseudoInst<(outs rGPR:$Rd),
3334 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm, cmovpred:$p),
3336 [(set rGPR:$Rd, (ARMcmov rGPR:$false,
3337 (opnode rGPR:$Rm, (i32 ty:$imm)),
3339 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
3341 def t2MOVCClsl : MOVCCShPseudo<shl, imm0_31>;
3342 def t2MOVCClsr : MOVCCShPseudo<srl, imm_sr>;
3343 def t2MOVCCasr : MOVCCShPseudo<sra, imm_sr>;
3344 def t2MOVCCror : MOVCCShPseudo<rotr, imm0_31>;
3346 let isMoveImm = 1 in
3348 : t2PseudoInst<(outs rGPR:$dst),
3349 (ins rGPR:$false, i32imm:$src, cmovpred:$p),
3351 [(set rGPR:$dst, (ARMcmov rGPR:$false, imm:$src,
3353 RegConstraint<"$false = $dst">;
3354 } // isCodeGenOnly = 1
3358 //===----------------------------------------------------------------------===//
3359 // Atomic operations intrinsics
3362 // memory barriers protect the atomic sequences
3363 let hasSideEffects = 1 in {
3364 def t2DMB : T2I<(outs), (ins memb_opt:$opt), NoItinerary,
3365 "dmb", "\t$opt", [(int_arm_dmb (i32 imm0_15:$opt))]>,
3366 Requires<[IsThumb, HasDB]> {
3368 let Inst{31-4} = 0xf3bf8f5;
3369 let Inst{3-0} = opt;
3372 def t2DSB : T2I<(outs), (ins memb_opt:$opt), NoItinerary,
3373 "dsb", "\t$opt", [(int_arm_dsb (i32 imm0_15:$opt))]>,
3374 Requires<[IsThumb, HasDB]> {
3376 let Inst{31-4} = 0xf3bf8f4;
3377 let Inst{3-0} = opt;
3380 def t2ISB : T2I<(outs), (ins instsyncb_opt:$opt), NoItinerary,
3381 "isb", "\t$opt", [(int_arm_isb (i32 imm0_15:$opt))]>,
3382 Requires<[IsThumb, HasDB]> {
3384 let Inst{31-4} = 0xf3bf8f6;
3385 let Inst{3-0} = opt;
3388 let hasNoSchedulingInfo = 1 in
3389 def t2TSB : T2I<(outs), (ins tsb_opt:$opt), NoItinerary,
3390 "tsb", "\t$opt", []>, Requires<[IsThumb, HasV8_4a]> {
3391 let Inst{31-0} = 0xf3af8012;
3395 // Armv8.5-A speculation barrier
3396 def t2SB : Thumb2XI<(outs), (ins), AddrModeNone, 4, NoItinerary, "sb", "", []>,
3397 Requires<[IsThumb2, HasSB]>, Sched<[]> {
3398 let Inst{31-0} = 0xf3bf8f70;
3399 let Unpredictable = 0x000f2f0f;
3400 let hasSideEffects = 1;
3403 class T2I_ldrex<bits<4> opcod, dag oops, dag iops, AddrMode am, int sz,
3404 InstrItinClass itin, string opc, string asm, string cstr,
3405 list<dag> pattern, bits<4> rt2 = 0b1111>
3406 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3407 let Inst{31-27} = 0b11101;
3408 let Inst{26-20} = 0b0001101;
3409 let Inst{11-8} = rt2;
3410 let Inst{7-4} = opcod;
3411 let Inst{3-0} = 0b1111;
3415 let Inst{19-16} = addr;
3416 let Inst{15-12} = Rt;
3418 class T2I_strex<bits<4> opcod, dag oops, dag iops, AddrMode am, int sz,
3419 InstrItinClass itin, string opc, string asm, string cstr,
3420 list<dag> pattern, bits<4> rt2 = 0b1111>
3421 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3422 let Inst{31-27} = 0b11101;
3423 let Inst{26-20} = 0b0001100;
3424 let Inst{11-8} = rt2;
3425 let Inst{7-4} = opcod;
3431 let Inst{19-16} = addr;
3432 let Inst{15-12} = Rt;
3435 let mayLoad = 1 in {
3436 def t2LDREXB : T2I_ldrex<0b0100, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3437 AddrModeNone, 4, NoItinerary,
3438 "ldrexb", "\t$Rt, $addr", "",
3439 [(set rGPR:$Rt, (ldrex_1 addr_offset_none:$addr))]>,
3440 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteLd]>;
3441 def t2LDREXH : T2I_ldrex<0b0101, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3442 AddrModeNone, 4, NoItinerary,
3443 "ldrexh", "\t$Rt, $addr", "",
3444 [(set rGPR:$Rt, (ldrex_2 addr_offset_none:$addr))]>,
3445 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteLd]>;
3446 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_imm0_1020s4:$addr),
3447 AddrModeT2_ldrex, 4, NoItinerary,
3448 "ldrex", "\t$Rt, $addr", "",
3449 [(set rGPR:$Rt, (ldrex_4 t2addrmode_imm0_1020s4:$addr))]>,
3450 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteLd]> {
3453 let Inst{31-27} = 0b11101;
3454 let Inst{26-20} = 0b0000101;
3455 let Inst{19-16} = addr{11-8};
3456 let Inst{15-12} = Rt;
3457 let Inst{11-8} = 0b1111;
3458 let Inst{7-0} = addr{7-0};
3460 let hasExtraDefRegAllocReq = 1 in
3461 def t2LDREXD : T2I_ldrex<0b0111, (outs rGPR:$Rt, rGPR:$Rt2),
3462 (ins addr_offset_none:$addr),
3463 AddrModeNone, 4, NoItinerary,
3464 "ldrexd", "\t$Rt, $Rt2, $addr", "",
3466 Requires<[IsThumb2, IsNotMClass]>, Sched<[WriteLd]> {
3468 let Inst{11-8} = Rt2;
3470 def t2LDAEXB : T2I_ldrex<0b1100, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3471 AddrModeNone, 4, NoItinerary,
3472 "ldaexb", "\t$Rt, $addr", "",
3473 [(set rGPR:$Rt, (ldaex_1 addr_offset_none:$addr))]>,
3474 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>, Sched<[WriteLd]>;
3475 def t2LDAEXH : T2I_ldrex<0b1101, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3476 AddrModeNone, 4, NoItinerary,
3477 "ldaexh", "\t$Rt, $addr", "",
3478 [(set rGPR:$Rt, (ldaex_2 addr_offset_none:$addr))]>,
3479 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>, Sched<[WriteLd]>;
3480 def t2LDAEX : Thumb2I<(outs rGPR:$Rt), (ins addr_offset_none:$addr),
3481 AddrModeNone, 4, NoItinerary,
3482 "ldaex", "\t$Rt, $addr", "",
3483 [(set rGPR:$Rt, (ldaex_4 addr_offset_none:$addr))]>,
3484 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>, Sched<[WriteLd]> {
3487 let Inst{31-27} = 0b11101;
3488 let Inst{26-20} = 0b0001101;
3489 let Inst{19-16} = addr;
3490 let Inst{15-12} = Rt;
3491 let Inst{11-8} = 0b1111;
3492 let Inst{7-0} = 0b11101111;
3494 let hasExtraDefRegAllocReq = 1 in
3495 def t2LDAEXD : T2I_ldrex<0b1111, (outs rGPR:$Rt, rGPR:$Rt2),
3496 (ins addr_offset_none:$addr),
3497 AddrModeNone, 4, NoItinerary,
3498 "ldaexd", "\t$Rt, $Rt2, $addr", "",
3499 [], {?, ?, ?, ?}>, Requires<[IsThumb,
3500 HasAcquireRelease, HasV7Clrex, IsNotMClass]>, Sched<[WriteLd]> {
3502 let Inst{11-8} = Rt2;
3508 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
3509 def t2STREXB : T2I_strex<0b0100, (outs rGPR:$Rd),
3510 (ins rGPR:$Rt, addr_offset_none:$addr),
3511 AddrModeNone, 4, NoItinerary,
3512 "strexb", "\t$Rd, $Rt, $addr", "",
3514 (strex_1 rGPR:$Rt, addr_offset_none:$addr))]>,
3515 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteST]>;
3516 def t2STREXH : T2I_strex<0b0101, (outs rGPR:$Rd),
3517 (ins rGPR:$Rt, addr_offset_none:$addr),
3518 AddrModeNone, 4, NoItinerary,
3519 "strexh", "\t$Rd, $Rt, $addr", "",
3521 (strex_2 rGPR:$Rt, addr_offset_none:$addr))]>,
3522 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteST]>;
3524 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt,
3525 t2addrmode_imm0_1020s4:$addr),
3526 AddrModeT2_ldrex, 4, NoItinerary,
3527 "strex", "\t$Rd, $Rt, $addr", "",
3529 (strex_4 rGPR:$Rt, t2addrmode_imm0_1020s4:$addr))]>,
3530 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteST]> {
3534 let Inst{31-27} = 0b11101;
3535 let Inst{26-20} = 0b0000100;
3536 let Inst{19-16} = addr{11-8};
3537 let Inst{15-12} = Rt;
3538 let Inst{11-8} = Rd;
3539 let Inst{7-0} = addr{7-0};
3541 let hasExtraSrcRegAllocReq = 1 in
3542 def t2STREXD : T2I_strex<0b0111, (outs rGPR:$Rd),
3543 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr),
3544 AddrModeNone, 4, NoItinerary,
3545 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
3547 Requires<[IsThumb2, IsNotMClass]>, Sched<[WriteST]> {
3549 let Inst{11-8} = Rt2;
3551 def t2STLEXB : T2I_strex<0b1100, (outs rGPR:$Rd),
3552 (ins rGPR:$Rt, addr_offset_none:$addr),
3553 AddrModeNone, 4, NoItinerary,
3554 "stlexb", "\t$Rd, $Rt, $addr", "",
3556 (stlex_1 rGPR:$Rt, addr_offset_none:$addr))]>,
3557 Requires<[IsThumb, HasAcquireRelease,
3558 HasV7Clrex]>, Sched<[WriteST]>;
3560 def t2STLEXH : T2I_strex<0b1101, (outs rGPR:$Rd),
3561 (ins rGPR:$Rt, addr_offset_none:$addr),
3562 AddrModeNone, 4, NoItinerary,
3563 "stlexh", "\t$Rd, $Rt, $addr", "",
3565 (stlex_2 rGPR:$Rt, addr_offset_none:$addr))]>,
3566 Requires<[IsThumb, HasAcquireRelease,
3567 HasV7Clrex]>, Sched<[WriteST]>;
3569 def t2STLEX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt,
3570 addr_offset_none:$addr),
3571 AddrModeNone, 4, NoItinerary,
3572 "stlex", "\t$Rd, $Rt, $addr", "",
3574 (stlex_4 rGPR:$Rt, addr_offset_none:$addr))]>,
3575 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>,
3580 let Inst{31-27} = 0b11101;
3581 let Inst{26-20} = 0b0001100;
3582 let Inst{19-16} = addr;
3583 let Inst{15-12} = Rt;
3584 let Inst{11-4} = 0b11111110;
3587 let hasExtraSrcRegAllocReq = 1 in
3588 def t2STLEXD : T2I_strex<0b1111, (outs rGPR:$Rd),
3589 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr),
3590 AddrModeNone, 4, NoItinerary,
3591 "stlexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
3592 {?, ?, ?, ?}>, Requires<[IsThumb, HasAcquireRelease,
3593 HasV7Clrex, IsNotMClass]>, Sched<[WriteST]> {
3595 let Inst{11-8} = Rt2;
3599 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", [(int_arm_clrex)]>,
3600 Requires<[IsThumb, HasV7Clrex]> {
3601 let Inst{31-16} = 0xf3bf;
3602 let Inst{15-14} = 0b10;
3605 let Inst{11-8} = 0b1111;
3606 let Inst{7-4} = 0b0010;
3607 let Inst{3-0} = 0b1111;
3610 def : T2Pat<(and (ldrex_1 addr_offset_none:$addr), 0xff),
3611 (t2LDREXB addr_offset_none:$addr)>,
3612 Requires<[IsThumb, HasV8MBaseline]>;
3613 def : T2Pat<(and (ldrex_2 addr_offset_none:$addr), 0xffff),
3614 (t2LDREXH addr_offset_none:$addr)>,
3615 Requires<[IsThumb, HasV8MBaseline]>;
3616 def : T2Pat<(strex_1 (and GPR:$Rt, 0xff), addr_offset_none:$addr),
3617 (t2STREXB GPR:$Rt, addr_offset_none:$addr)>,
3618 Requires<[IsThumb, HasV8MBaseline]>;
3619 def : T2Pat<(strex_2 (and GPR:$Rt, 0xffff), addr_offset_none:$addr),
3620 (t2STREXH GPR:$Rt, addr_offset_none:$addr)>,
3621 Requires<[IsThumb, HasV8MBaseline]>;
3623 def : T2Pat<(and (ldaex_1 addr_offset_none:$addr), 0xff),
3624 (t2LDAEXB addr_offset_none:$addr)>,
3625 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>;
3626 def : T2Pat<(and (ldaex_2 addr_offset_none:$addr), 0xffff),
3627 (t2LDAEXH addr_offset_none:$addr)>,
3628 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>;
3629 def : T2Pat<(stlex_1 (and GPR:$Rt, 0xff), addr_offset_none:$addr),
3630 (t2STLEXB GPR:$Rt, addr_offset_none:$addr)>,
3631 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>;
3632 def : T2Pat<(stlex_2 (and GPR:$Rt, 0xffff), addr_offset_none:$addr),
3633 (t2STLEXH GPR:$Rt, addr_offset_none:$addr)>,
3634 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>;
3636 //===----------------------------------------------------------------------===//
3637 // SJLJ Exception handling intrinsics
3638 // eh_sjlj_setjmp() is an instruction sequence to store the return
3639 // address and save #0 in R0 for the non-longjmp case.
3640 // Since by its nature we may be coming from some other function to get
3641 // here, and we're using the stack frame for the containing function to
3642 // save/restore registers, we can't keep anything live in regs across
3643 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
3644 // when we get here from a longjmp(). We force everything out of registers
3645 // except for our own input by listing the relevant registers in Defs. By
3646 // doing so, we also cause the prologue/epilogue code to actively preserve
3647 // all of the callee-saved resgisters, which is exactly what we want.
3648 // $val is a scratch register for our use.
3650 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
3651 Q0, Q1, Q2, Q3, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15],
3652 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3653 usesCustomInserter = 1 in {
3654 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3655 AddrModeNone, 0, NoItinerary, "", "",
3656 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3657 Requires<[IsThumb2, HasVFP2]>;
3661 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
3662 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3663 usesCustomInserter = 1 in {
3664 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3665 AddrModeNone, 0, NoItinerary, "", "",
3666 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3667 Requires<[IsThumb2, NoVFP]>;
3671 //===----------------------------------------------------------------------===//
3672 // Control-Flow Instructions
3675 // FIXME: remove when we have a way to marking a MI with these properties.
3676 // FIXME: Should pc be an implicit operand like PICADD, etc?
3677 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
3678 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
3679 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
3680 reglist:$regs, variable_ops),
3681 4, IIC_iLoad_mBr, [],
3682 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
3683 RegConstraint<"$Rn = $wb">;
3685 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
3686 let isPredicable = 1 in
3687 def t2B : T2I<(outs), (ins thumb_br_target:$target), IIC_Br,
3689 [(br bb:$target)]>, Sched<[WriteBr]>,
3690 Requires<[IsThumb, HasV8MBaseline]> {
3691 let Inst{31-27} = 0b11110;
3692 let Inst{15-14} = 0b10;
3696 let Inst{26} = target{23};
3697 let Inst{13} = target{22};
3698 let Inst{11} = target{21};
3699 let Inst{25-16} = target{20-11};
3700 let Inst{10-0} = target{10-0};
3701 let DecoderMethod = "DecodeT2BInstruction";
3702 let AsmMatchConverter = "cvtThumbBranches";
3705 let Size = 4, isNotDuplicable = 1, isBranch = 1, isTerminator = 1,
3706 isBarrier = 1, isIndirectBranch = 1 in {
3708 // available in both v8-M.Baseline and Thumb2 targets
3709 def t2BR_JT : t2basePseudoInst<(outs),
3710 (ins GPR:$target, GPR:$index, i32imm:$jt),
3712 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt)]>,
3715 // FIXME: Add a case that can be predicated.
3716 def t2TBB_JT : t2PseudoInst<(outs),
3717 (ins GPR:$base, GPR:$index, i32imm:$jt, i32imm:$pclbl), 0, IIC_Br, []>,
3720 def t2TBH_JT : t2PseudoInst<(outs),
3721 (ins GPR:$base, GPR:$index, i32imm:$jt, i32imm:$pclbl), 0, IIC_Br, []>,
3724 def t2TBB : T2I<(outs), (ins addrmode_tbb:$addr), IIC_Br,
3725 "tbb", "\t$addr", []>, Sched<[WriteBrTbl]> {
3728 let Inst{31-20} = 0b111010001101;
3729 let Inst{19-16} = Rn;
3730 let Inst{15-5} = 0b11110000000;
3731 let Inst{4} = 0; // B form
3734 let DecoderMethod = "DecodeThumbTableBranch";
3737 def t2TBH : T2I<(outs), (ins addrmode_tbh:$addr), IIC_Br,
3738 "tbh", "\t$addr", []>, Sched<[WriteBrTbl]> {
3741 let Inst{31-20} = 0b111010001101;
3742 let Inst{19-16} = Rn;
3743 let Inst{15-5} = 0b11110000000;
3744 let Inst{4} = 1; // H form
3747 let DecoderMethod = "DecodeThumbTableBranch";
3749 } // isNotDuplicable, isIndirectBranch
3751 } // isBranch, isTerminator, isBarrier
3753 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3754 // a two-value operand where a dag node expects ", "two operands. :(
3755 let isBranch = 1, isTerminator = 1 in
3756 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3758 [/*(ARMbrcond bb:$target, imm:$cc)*/]>, Sched<[WriteBr]> {
3759 let Inst{31-27} = 0b11110;
3760 let Inst{15-14} = 0b10;
3764 let Inst{25-22} = p;
3767 let Inst{26} = target{20};
3768 let Inst{11} = target{19};
3769 let Inst{13} = target{18};
3770 let Inst{21-16} = target{17-12};
3771 let Inst{10-0} = target{11-1};
3773 let DecoderMethod = "DecodeThumb2BCCInstruction";
3774 let AsmMatchConverter = "cvtThumbBranches";
3777 // Tail calls. The MachO version of thumb tail calls uses a t2 branch, so
3779 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3782 def tTAILJMPd: tPseudoExpand<(outs),
3783 (ins thumb_br_target:$dst, pred:$p),
3785 (t2B thumb_br_target:$dst, pred:$p)>,
3786 Requires<[IsThumb2, IsMachO]>, Sched<[WriteBr]>;
3790 let Defs = [ITSTATE] in
3791 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3792 AddrModeNone, 2, IIC_iALUx,
3793 "it$mask\t$cc", "", []>,
3794 ComplexDeprecationPredicate<"IT"> {
3795 // 16-bit instruction.
3796 let Inst{31-16} = 0x0000;
3797 let Inst{15-8} = 0b10111111;
3802 let Inst{3-0} = mask;
3804 let DecoderMethod = "DecodeIT";
3807 // Branch and Exchange Jazelle -- for disassembly only
3809 let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in
3810 def t2BXJ : T2I<(outs), (ins GPRnopc:$func), NoItinerary, "bxj", "\t$func", []>,
3811 Sched<[WriteBr]>, Requires<[IsThumb2, IsNotMClass]> {
3813 let Inst{31-27} = 0b11110;
3815 let Inst{25-20} = 0b111100;
3816 let Inst{19-16} = func;
3817 let Inst{15-0} = 0b1000111100000000;
3820 // Compare and branch on zero / non-zero
3821 let isBranch = 1, isTerminator = 1 in {
3822 def tCBZ : T1I<(outs), (ins tGPR:$Rn, thumb_cb_target:$target), IIC_Br,
3823 "cbz\t$Rn, $target", []>,
3824 T1Misc<{0,0,?,1,?,?,?}>,
3825 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteBr]> {
3829 let Inst{9} = target{5};
3830 let Inst{7-3} = target{4-0};
3834 def tCBNZ : T1I<(outs), (ins tGPR:$Rn, thumb_cb_target:$target), IIC_Br,
3835 "cbnz\t$Rn, $target", []>,
3836 T1Misc<{1,0,?,1,?,?,?}>,
3837 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteBr]> {
3841 let Inst{9} = target{5};
3842 let Inst{7-3} = target{4-0};
3848 // Change Processor State is a system instruction.
3849 // FIXME: Since the asm parser has currently no clean way to handle optional
3850 // operands, create 3 versions of the same instruction. Once there's a clean
3851 // framework to represent optional operands, change this behavior.
3852 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3853 !strconcat("cps", asm_op), []>,
3854 Requires<[IsThumb2, IsNotMClass]> {
3860 let Inst{31-11} = 0b111100111010111110000;
3861 let Inst{10-9} = imod;
3863 let Inst{7-5} = iflags;
3864 let Inst{4-0} = mode;
3865 let DecoderMethod = "DecodeT2CPSInstruction";
3869 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3870 "$imod\t$iflags, $mode">;
3871 let mode = 0, M = 0 in
3872 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3873 "$imod.w\t$iflags">;
3874 let imod = 0, iflags = 0, M = 1 in
3875 def t2CPS1p : t2CPS<(ins imm0_31:$mode), "\t$mode">;
3877 def : t2InstAlias<"cps$imod.w $iflags, $mode",
3878 (t2CPS3p imod_op:$imod, iflags_op:$iflags, i32imm:$mode), 0>;
3879 def : t2InstAlias<"cps.w $mode", (t2CPS1p imm0_31:$mode), 0>;
3881 // A6.3.4 Branches and miscellaneous control
3882 // Table A6-14 Change Processor State, and hint instructions
3883 def t2HINT : T2I<(outs), (ins imm0_239:$imm), NoItinerary, "hint", ".w\t$imm",
3884 [(int_arm_hint imm0_239:$imm)]> {
3886 let Inst{31-3} = 0b11110011101011111000000000000;
3887 let Inst{7-0} = imm;
3890 def : t2InstAlias<"hint$p $imm", (t2HINT imm0_239:$imm, pred:$p), 0>;
3891 def : t2InstAlias<"nop$p.w", (t2HINT 0, pred:$p), 1>;
3892 def : t2InstAlias<"yield$p.w", (t2HINT 1, pred:$p), 1>;
3893 def : t2InstAlias<"wfe$p.w", (t2HINT 2, pred:$p), 1>;
3894 def : t2InstAlias<"wfi$p.w", (t2HINT 3, pred:$p), 1>;
3895 def : t2InstAlias<"sev$p.w", (t2HINT 4, pred:$p), 1>;
3896 def : t2InstAlias<"sevl$p.w", (t2HINT 5, pred:$p), 1> {
3897 let Predicates = [IsThumb2, HasV8];
3899 def : t2InstAlias<"esb$p.w", (t2HINT 16, pred:$p), 1> {
3900 let Predicates = [IsThumb2, HasRAS];
3902 def : t2InstAlias<"esb$p", (t2HINT 16, pred:$p), 0> {
3903 let Predicates = [IsThumb2, HasRAS];
3905 def : t2InstAlias<"csdb$p.w", (t2HINT 20, pred:$p), 0>;
3906 def : t2InstAlias<"csdb$p", (t2HINT 20, pred:$p), 1>;
3908 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt",
3909 [(int_arm_dbg imm0_15:$opt)]> {
3911 let Inst{31-20} = 0b111100111010;
3912 let Inst{19-16} = 0b1111;
3913 let Inst{15-8} = 0b10000000;
3914 let Inst{7-4} = 0b1111;
3915 let Inst{3-0} = opt;
3918 // Secure Monitor Call is a system instruction.
3919 // Option = Inst{19-16}
3920 let isCall = 1, Uses = [SP] in
3921 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
3922 []>, Requires<[IsThumb2, HasTrustZone]> {
3923 let Inst{31-27} = 0b11110;
3924 let Inst{26-20} = 0b1111111;
3925 let Inst{15-12} = 0b1000;
3928 let Inst{19-16} = opt;
3931 class T2DCPS<bits<2> opt, string opc>
3932 : T2I<(outs), (ins), NoItinerary, opc, "", []>, Requires<[IsThumb2, HasV8]> {
3933 let Inst{31-27} = 0b11110;
3934 let Inst{26-20} = 0b1111000;
3935 let Inst{19-16} = 0b1111;
3936 let Inst{15-12} = 0b1000;
3937 let Inst{11-2} = 0b0000000000;
3938 let Inst{1-0} = opt;
3941 def t2DCPS1 : T2DCPS<0b01, "dcps1">;
3942 def t2DCPS2 : T2DCPS<0b10, "dcps2">;
3943 def t2DCPS3 : T2DCPS<0b11, "dcps3">;
3945 class T2SRS<bits<2> Op, bit W, dag oops, dag iops, InstrItinClass itin,
3946 string opc, string asm, list<dag> pattern>
3947 : T2I<oops, iops, itin, opc, asm, pattern>,
3948 Requires<[IsThumb2,IsNotMClass]> {
3950 let Inst{31-25} = 0b1110100;
3951 let Inst{24-23} = Op;
3954 let Inst{20-16} = 0b01101;
3955 let Inst{15-5} = 0b11000000000;
3956 let Inst{4-0} = mode{4-0};
3959 // Store Return State is a system instruction.
3960 def t2SRSDB_UPD : T2SRS<0b00, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3961 "srsdb", "\tsp!, $mode", []>;
3962 def t2SRSDB : T2SRS<0b00, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3963 "srsdb","\tsp, $mode", []>;
3964 def t2SRSIA_UPD : T2SRS<0b11, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3965 "srsia","\tsp!, $mode", []>;
3966 def t2SRSIA : T2SRS<0b11, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3967 "srsia","\tsp, $mode", []>;
3970 def : t2InstAlias<"srsdb${p} $mode", (t2SRSDB imm0_31:$mode, pred:$p)>;
3971 def : t2InstAlias<"srsdb${p} $mode!", (t2SRSDB_UPD imm0_31:$mode, pred:$p)>;
3973 def : t2InstAlias<"srsia${p} $mode", (t2SRSIA imm0_31:$mode, pred:$p)>;
3974 def : t2InstAlias<"srsia${p} $mode!", (t2SRSIA_UPD imm0_31:$mode, pred:$p)>;
3976 // Return From Exception is a system instruction.
3977 let isReturn = 1, isBarrier = 1, isTerminator = 1, Defs = [PC] in
3978 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3979 string opc, string asm, list<dag> pattern>
3980 : T2I<oops, iops, itin, opc, asm, pattern>,
3981 Requires<[IsThumb2,IsNotMClass]> {
3982 let Inst{31-20} = op31_20{11-0};
3985 let Inst{19-16} = Rn;
3986 let Inst{15-0} = 0xc000;
3989 def t2RFEDBW : T2RFE<0b111010000011,
3990 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3991 [/* For disassembly only; pattern left blank */]>;
3992 def t2RFEDB : T2RFE<0b111010000001,
3993 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3994 [/* For disassembly only; pattern left blank */]>;
3995 def t2RFEIAW : T2RFE<0b111010011011,
3996 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3997 [/* For disassembly only; pattern left blank */]>;
3998 def t2RFEIA : T2RFE<0b111010011001,
3999 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
4000 [/* For disassembly only; pattern left blank */]>;
4002 // B9.3.19 SUBS PC, LR, #imm (Thumb2) system instruction.
4003 // Exception return instruction is "subs pc, lr, #imm".
4004 let isReturn = 1, isBarrier = 1, isTerminator = 1, Defs = [PC] in
4005 def t2SUBS_PC_LR : T2I <(outs), (ins imm0_255:$imm), NoItinerary,
4006 "subs", "\tpc, lr, $imm",
4007 [(ARMintretflag imm0_255:$imm)]>,
4008 Requires<[IsThumb2,IsNotMClass]> {
4009 let Inst{31-8} = 0b111100111101111010001111;
4012 let Inst{7-0} = imm;
4015 // Hypervisor Call is a system instruction.
4017 def t2HVC : T2XI <(outs), (ins imm0_65535:$imm16), IIC_Br, "hvc.w\t$imm16", []>,
4018 Requires<[IsThumb2, HasVirtualization]>, Sched<[WriteBr]> {
4020 let Inst{31-20} = 0b111101111110;
4021 let Inst{19-16} = imm16{15-12};
4022 let Inst{15-12} = 0b1000;
4023 let Inst{11-0} = imm16{11-0};
4027 // Alias for HVC without the ".w" optional width specifier
4028 def : t2InstAlias<"hvc\t$imm16", (t2HVC imm0_65535:$imm16)>;
4030 // ERET - Return from exception in Hypervisor mode.
4031 // B9.3.3, B9.3.20: ERET is an alias for "SUBS PC, LR, #0" in an implementation that
4032 // includes virtualization extensions.
4033 def t2ERET : InstAlias<"eret${p}", (t2SUBS_PC_LR 0, pred:$p), 1>,
4034 Requires<[IsThumb2, HasVirtualization]>;
4036 //===----------------------------------------------------------------------===//
4037 // Non-Instruction Patterns
4040 // 32-bit immediate using movw + movt.
4041 // This is a single pseudo instruction to make it re-materializable.
4042 // FIXME: Remove this when we can do generalized remat.
4043 let isReMaterializable = 1, isMoveImm = 1 in
4044 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
4045 [(set rGPR:$dst, (i32 imm:$src))]>,
4046 Requires<[IsThumb, UseMovt]>;
4048 // Pseudo instruction that combines movw + movt + add pc (if pic).
4049 // It also makes it possible to rematerialize the instructions.
4050 // FIXME: Remove this when we can do generalized remat and when machine licm
4051 // can properly the instructions.
4052 let isReMaterializable = 1 in {
4053 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
4055 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
4056 Requires<[IsThumb, HasV8MBaseline, UseMovtInPic]>;
4060 def : T2Pat<(ARMWrapperPIC tglobaltlsaddr :$dst),
4061 (t2MOV_ga_pcrel tglobaltlsaddr:$dst)>,
4062 Requires<[IsThumb2, UseMovtInPic]>;
4063 def : T2Pat<(ARMWrapper tglobaltlsaddr:$dst),
4064 (t2MOVi32imm tglobaltlsaddr:$dst)>,
4065 Requires<[IsThumb2, UseMovt]>;
4067 // ConstantPool, GlobalAddress, and JumpTable
4068 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
4069 def : T2Pat<(ARMWrapper texternalsym :$dst), (t2MOVi32imm texternalsym :$dst)>,
4070 Requires<[IsThumb, HasV8MBaseline, UseMovt]>;
4071 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
4072 Requires<[IsThumb, HasV8MBaseline, UseMovt]>;
4074 def : T2Pat<(ARMWrapperJT tjumptable:$dst), (t2LEApcrelJT tjumptable:$dst)>;
4076 // Pseudo instruction that combines ldr from constpool and add pc. This should
4077 // be expanded into two instructions late to allow if-conversion and
4079 let canFoldAsLoad = 1, isReMaterializable = 1 in
4080 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
4082 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
4084 Requires<[IsThumb2]>;
4086 // Pseudo isntruction that combines movs + predicated rsbmi
4087 // to implement integer ABS
4088 let usesCustomInserter = 1, Defs = [CPSR] in {
4089 def t2ABS : PseudoInst<(outs rGPR:$dst), (ins rGPR:$src),
4090 NoItinerary, []>, Requires<[IsThumb2]>;
4093 //===----------------------------------------------------------------------===//
4094 // Coprocessor load/store -- for disassembly only
4096 class T2CI<bits<4> op31_28, dag oops, dag iops, string opc, string asm, list<dag> pattern>
4097 : T2I<oops, iops, NoItinerary, opc, asm, pattern> {
4098 let Inst{31-28} = op31_28;
4099 let Inst{27-25} = 0b110;
4102 multiclass t2LdStCop<bits<4> op31_28, bit load, bit Dbit, string asm, list<dag> pattern> {
4103 def _OFFSET : T2CI<op31_28,
4104 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
4105 asm, "\t$cop, $CRd, $addr", pattern> {
4109 let Inst{24} = 1; // P = 1
4110 let Inst{23} = addr{8};
4111 let Inst{22} = Dbit;
4112 let Inst{21} = 0; // W = 0
4113 let Inst{20} = load;
4114 let Inst{19-16} = addr{12-9};
4115 let Inst{15-12} = CRd;
4116 let Inst{11-8} = cop;
4117 let Inst{7-0} = addr{7-0};
4118 let DecoderMethod = "DecodeCopMemInstruction";
4120 def _PRE : T2CI<op31_28,
4121 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5_pre:$addr),
4122 asm, "\t$cop, $CRd, $addr!", []> {
4126 let Inst{24} = 1; // P = 1
4127 let Inst{23} = addr{8};
4128 let Inst{22} = Dbit;
4129 let Inst{21} = 1; // W = 1
4130 let Inst{20} = load;
4131 let Inst{19-16} = addr{12-9};
4132 let Inst{15-12} = CRd;
4133 let Inst{11-8} = cop;
4134 let Inst{7-0} = addr{7-0};
4135 let DecoderMethod = "DecodeCopMemInstruction";
4137 def _POST: T2CI<op31_28,
4138 (outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
4139 postidx_imm8s4:$offset),
4140 asm, "\t$cop, $CRd, $addr, $offset", []> {
4145 let Inst{24} = 0; // P = 0
4146 let Inst{23} = offset{8};
4147 let Inst{22} = Dbit;
4148 let Inst{21} = 1; // W = 1
4149 let Inst{20} = load;
4150 let Inst{19-16} = addr;
4151 let Inst{15-12} = CRd;
4152 let Inst{11-8} = cop;
4153 let Inst{7-0} = offset{7-0};
4154 let DecoderMethod = "DecodeCopMemInstruction";
4156 def _OPTION : T2CI<op31_28, (outs),
4157 (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
4158 coproc_option_imm:$option),
4159 asm, "\t$cop, $CRd, $addr, $option", []> {
4164 let Inst{24} = 0; // P = 0
4165 let Inst{23} = 1; // U = 1
4166 let Inst{22} = Dbit;
4167 let Inst{21} = 0; // W = 0
4168 let Inst{20} = load;
4169 let Inst{19-16} = addr;
4170 let Inst{15-12} = CRd;
4171 let Inst{11-8} = cop;
4172 let Inst{7-0} = option;
4173 let DecoderMethod = "DecodeCopMemInstruction";
4177 let DecoderNamespace = "Thumb2CoProc" in {
4178 defm t2LDC : t2LdStCop<0b1110, 1, 0, "ldc", [(int_arm_ldc imm:$cop, imm:$CRd, addrmode5:$addr)]>;
4179 defm t2LDCL : t2LdStCop<0b1110, 1, 1, "ldcl", [(int_arm_ldcl imm:$cop, imm:$CRd, addrmode5:$addr)]>;
4180 defm t2LDC2 : t2LdStCop<0b1111, 1, 0, "ldc2", [(int_arm_ldc2 imm:$cop, imm:$CRd, addrmode5:$addr)]>, Requires<[PreV8,IsThumb2]>;
4181 defm t2LDC2L : t2LdStCop<0b1111, 1, 1, "ldc2l", [(int_arm_ldc2l imm:$cop, imm:$CRd, addrmode5:$addr)]>, Requires<[PreV8,IsThumb2]>;
4183 defm t2STC : t2LdStCop<0b1110, 0, 0, "stc", [(int_arm_stc imm:$cop, imm:$CRd, addrmode5:$addr)]>;
4184 defm t2STCL : t2LdStCop<0b1110, 0, 1, "stcl", [(int_arm_stcl imm:$cop, imm:$CRd, addrmode5:$addr)]>;
4185 defm t2STC2 : t2LdStCop<0b1111, 0, 0, "stc2", [(int_arm_stc2 imm:$cop, imm:$CRd, addrmode5:$addr)]>, Requires<[PreV8,IsThumb2]>;
4186 defm t2STC2L : t2LdStCop<0b1111, 0, 1, "stc2l", [(int_arm_stc2l imm:$cop, imm:$CRd, addrmode5:$addr)]>, Requires<[PreV8,IsThumb2]>;
4190 //===----------------------------------------------------------------------===//
4191 // Move between special register and ARM core register -- for disassembly only
4193 // Move to ARM core register from Special Register
4197 // A/R class can only move from CPSR or SPSR.
4198 def t2MRS_AR : T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, apsr",
4199 []>, Requires<[IsThumb2,IsNotMClass]> {
4201 let Inst{31-12} = 0b11110011111011111000;
4202 let Inst{11-8} = Rd;
4203 let Inst{7-0} = 0b00000000;
4206 def : t2InstAlias<"mrs${p} $Rd, cpsr", (t2MRS_AR GPR:$Rd, pred:$p)>;
4208 def t2MRSsys_AR: T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
4209 []>, Requires<[IsThumb2,IsNotMClass]> {
4211 let Inst{31-12} = 0b11110011111111111000;
4212 let Inst{11-8} = Rd;
4213 let Inst{7-0} = 0b00000000;
4216 def t2MRSbanked : T2I<(outs rGPR:$Rd), (ins banked_reg:$banked),
4217 NoItinerary, "mrs", "\t$Rd, $banked", []>,
4218 Requires<[IsThumb, HasVirtualization]> {
4222 let Inst{31-21} = 0b11110011111;
4223 let Inst{20} = banked{5}; // R bit
4224 let Inst{19-16} = banked{3-0};
4225 let Inst{15-12} = 0b1000;
4226 let Inst{11-8} = Rd;
4227 let Inst{7-5} = 0b001;
4228 let Inst{4} = banked{4};
4229 let Inst{3-0} = 0b0000;
4235 // This MRS has a mask field in bits 7-0 and can take more values than
4236 // the A/R class (a full msr_mask).
4237 def t2MRS_M : T2I<(outs rGPR:$Rd), (ins msr_mask:$SYSm), NoItinerary,
4238 "mrs", "\t$Rd, $SYSm", []>,
4239 Requires<[IsThumb,IsMClass]> {
4242 let Inst{31-12} = 0b11110011111011111000;
4243 let Inst{11-8} = Rd;
4244 let Inst{7-0} = SYSm;
4246 let Unpredictable{20-16} = 0b11111;
4247 let Unpredictable{13} = 0b1;
4251 // Move from ARM core register to Special Register
4255 // No need to have both system and application versions, the encodings are the
4256 // same and the assembly parser has no way to distinguish between them. The mask
4257 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
4258 // the mask with the fields to be accessed in the special register.
4259 let Defs = [CPSR] in
4260 def t2MSR_AR : T2I<(outs), (ins msr_mask:$mask, rGPR:$Rn),
4261 NoItinerary, "msr", "\t$mask, $Rn", []>,
4262 Requires<[IsThumb2,IsNotMClass]> {
4265 let Inst{31-21} = 0b11110011100;
4266 let Inst{20} = mask{4}; // R Bit
4267 let Inst{19-16} = Rn;
4268 let Inst{15-12} = 0b1000;
4269 let Inst{11-8} = mask{3-0};
4273 // However, the MSR (banked register) system instruction (ARMv7VE) *does* have a
4274 // separate encoding (distinguished by bit 5.
4275 def t2MSRbanked : T2I<(outs), (ins banked_reg:$banked, rGPR:$Rn),
4276 NoItinerary, "msr", "\t$banked, $Rn", []>,
4277 Requires<[IsThumb, HasVirtualization]> {
4281 let Inst{31-21} = 0b11110011100;
4282 let Inst{20} = banked{5}; // R bit
4283 let Inst{19-16} = Rn;
4284 let Inst{15-12} = 0b1000;
4285 let Inst{11-8} = banked{3-0};
4286 let Inst{7-5} = 0b001;
4287 let Inst{4} = banked{4};
4288 let Inst{3-0} = 0b0000;
4294 // Move from ARM core register to Special Register
4295 let Defs = [CPSR] in
4296 def t2MSR_M : T2I<(outs), (ins msr_mask:$SYSm, rGPR:$Rn),
4297 NoItinerary, "msr", "\t$SYSm, $Rn", []>,
4298 Requires<[IsThumb,IsMClass]> {
4301 let Inst{31-21} = 0b11110011100;
4303 let Inst{19-16} = Rn;
4304 let Inst{15-12} = 0b1000;
4305 let Inst{11-10} = SYSm{11-10};
4306 let Inst{9-8} = 0b00;
4307 let Inst{7-0} = SYSm{7-0};
4309 let Unpredictable{20} = 0b1;
4310 let Unpredictable{13} = 0b1;
4311 let Unpredictable{9-8} = 0b11;
4315 //===----------------------------------------------------------------------===//
4316 // Move between coprocessor and ARM core register
4319 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
4321 : T2Cop<Op, oops, iops, opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2",
4323 let Inst{27-24} = 0b1110;
4324 let Inst{20} = direction;
4334 let Inst{15-12} = Rt;
4335 let Inst{11-8} = cop;
4336 let Inst{23-21} = opc1;
4337 let Inst{7-5} = opc2;
4338 let Inst{3-0} = CRm;
4339 let Inst{19-16} = CRn;
4341 let DecoderNamespace = "Thumb2CoProc";
4344 class t2MovRRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
4345 list<dag> pattern = []>
4346 : T2Cop<Op, oops, iops, opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm", pattern> {
4347 let Inst{27-24} = 0b1100;
4348 let Inst{23-21} = 0b010;
4349 let Inst{20} = direction;
4357 let Inst{15-12} = Rt;
4358 let Inst{19-16} = Rt2;
4359 let Inst{11-8} = cop;
4360 let Inst{7-4} = opc1;
4361 let Inst{3-0} = CRm;
4363 let DecoderNamespace = "Thumb2CoProc";
4366 /* from ARM core register to coprocessor */
4367 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
4369 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4370 c_imm:$CRm, imm0_7:$opc2),
4371 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
4372 imm:$CRm, imm:$opc2)]>,
4373 ComplexDeprecationPredicate<"MCR">;
4374 def : t2InstAlias<"mcr${p} $cop, $opc1, $Rt, $CRn, $CRm",
4375 (t2MCR p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4376 c_imm:$CRm, 0, pred:$p)>;
4377 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
4378 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4379 c_imm:$CRm, imm0_7:$opc2),
4380 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
4381 imm:$CRm, imm:$opc2)]> {
4382 let Predicates = [IsThumb2, PreV8];
4384 def : t2InstAlias<"mcr2${p} $cop, $opc1, $Rt, $CRn, $CRm",
4385 (t2MCR2 p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4386 c_imm:$CRm, 0, pred:$p)>;
4388 /* from coprocessor to ARM core register */
4389 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
4390 (outs GPRwithAPSR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
4391 c_imm:$CRm, imm0_7:$opc2), []>;
4392 def : t2InstAlias<"mrc${p} $cop, $opc1, $Rt, $CRn, $CRm",
4393 (t2MRC GPRwithAPSR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
4394 c_imm:$CRm, 0, pred:$p)>;
4396 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
4397 (outs GPRwithAPSR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
4398 c_imm:$CRm, imm0_7:$opc2), []> {
4399 let Predicates = [IsThumb2, PreV8];
4401 def : t2InstAlias<"mrc2${p} $cop, $opc1, $Rt, $CRn, $CRm",
4402 (t2MRC2 GPRwithAPSR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
4403 c_imm:$CRm, 0, pred:$p)>;
4405 def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
4406 (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
4408 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
4409 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
4412 /* from ARM core register to coprocessor */
4413 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0, (outs),
4414 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2,
4416 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
4418 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0, (outs),
4419 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2,
4421 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
4422 GPR:$Rt2, imm:$CRm)]> {
4423 let Predicates = [IsThumb2, PreV8];
4426 /* from coprocessor to ARM core register */
4427 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1, (outs GPR:$Rt, GPR:$Rt2),
4428 (ins p_imm:$cop, imm0_15:$opc1, c_imm:$CRm)>;
4430 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1, (outs GPR:$Rt, GPR:$Rt2),
4431 (ins p_imm:$cop, imm0_15:$opc1, c_imm:$CRm)> {
4432 let Predicates = [IsThumb2, PreV8];
4435 //===----------------------------------------------------------------------===//
4436 // Other Coprocessor Instructions.
4439 def t2CDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
4440 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
4441 "cdp", "\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
4442 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
4443 imm:$CRm, imm:$opc2)]> {
4444 let Inst{27-24} = 0b1110;
4453 let Inst{3-0} = CRm;
4455 let Inst{7-5} = opc2;
4456 let Inst{11-8} = cop;
4457 let Inst{15-12} = CRd;
4458 let Inst{19-16} = CRn;
4459 let Inst{23-20} = opc1;
4461 let Predicates = [IsThumb2, PreV8];
4462 let DecoderNamespace = "Thumb2CoProc";
4465 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
4466 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
4467 "cdp2", "\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
4468 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
4469 imm:$CRm, imm:$opc2)]> {
4470 let Inst{27-24} = 0b1110;
4479 let Inst{3-0} = CRm;
4481 let Inst{7-5} = opc2;
4482 let Inst{11-8} = cop;
4483 let Inst{15-12} = CRd;
4484 let Inst{19-16} = CRn;
4485 let Inst{23-20} = opc1;
4487 let Predicates = [IsThumb2, PreV8];
4488 let DecoderNamespace = "Thumb2CoProc";
4493 //===----------------------------------------------------------------------===//
4494 // ARMv8.1 Privilege Access Never extension
4498 def t2SETPAN : T1I<(outs), (ins imm0_1:$imm), NoItinerary, "setpan\t$imm", []>,
4499 T1Misc<0b0110000>, Requires<[IsThumb2, HasV8, HasV8_1a]> {
4504 let Inst{2-0} = 0b000;
4506 let Unpredictable{4} = 0b1;
4507 let Unpredictable{2-0} = 0b111;
4510 //===----------------------------------------------------------------------===//
4511 // ARMv8-M Security Extensions instructions
4514 let hasSideEffects = 1 in
4515 def t2SG : T2I<(outs), (ins), NoItinerary, "sg", "", []>,
4516 Requires<[Has8MSecExt]> {
4517 let Inst = 0xe97fe97f;
4520 class T2TT<bits<2> at, string asm, list<dag> pattern>
4521 : T2I<(outs rGPR:$Rt), (ins GPRnopc:$Rn), NoItinerary, asm, "\t$Rt, $Rn",
4526 let Inst{31-20} = 0b111010000100;
4527 let Inst{19-16} = Rn;
4528 let Inst{15-12} = 0b1111;
4529 let Inst{11-8} = Rt;
4531 let Inst{5-0} = 0b000000;
4533 let Unpredictable{5-0} = 0b111111;
4536 def t2TT : T2TT<0b00, "tt", []>, Requires<[IsThumb,Has8MSecExt]>;
4537 def t2TTT : T2TT<0b01, "ttt", []>, Requires<[IsThumb,Has8MSecExt]>;
4538 def t2TTA : T2TT<0b10, "tta", []>, Requires<[IsThumb,Has8MSecExt]>;
4539 def t2TTAT : T2TT<0b11, "ttat", []>, Requires<[IsThumb,Has8MSecExt]>;
4541 //===----------------------------------------------------------------------===//
4542 // Non-Instruction Patterns
4545 // SXT/UXT with no rotate
4546 let AddedComplexity = 16 in {
4547 def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>,
4548 Requires<[IsThumb2]>;
4549 def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>,
4550 Requires<[IsThumb2]>;
4551 def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>,
4552 Requires<[HasDSP, IsThumb2]>;
4553 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)),
4554 (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
4555 Requires<[HasDSP, IsThumb2]>;
4556 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)),
4557 (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
4558 Requires<[HasDSP, IsThumb2]>;
4561 def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>,
4562 Requires<[IsThumb2]>;
4563 def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>,
4564 Requires<[IsThumb2]>;
4565 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)),
4566 (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
4567 Requires<[HasDSP, IsThumb2]>;
4568 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)),
4569 (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
4570 Requires<[HasDSP, IsThumb2]>;
4572 // Atomic load/store patterns
4573 def : T2Pat<(atomic_load_8 t2addrmode_imm12:$addr),
4574 (t2LDRBi12 t2addrmode_imm12:$addr)>;
4575 def : T2Pat<(atomic_load_8 t2addrmode_negimm8:$addr),
4576 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
4577 def : T2Pat<(atomic_load_8 t2addrmode_so_reg:$addr),
4578 (t2LDRBs t2addrmode_so_reg:$addr)>;
4579 def : T2Pat<(atomic_load_16 t2addrmode_imm12:$addr),
4580 (t2LDRHi12 t2addrmode_imm12:$addr)>;
4581 def : T2Pat<(atomic_load_16 t2addrmode_negimm8:$addr),
4582 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
4583 def : T2Pat<(atomic_load_16 t2addrmode_so_reg:$addr),
4584 (t2LDRHs t2addrmode_so_reg:$addr)>;
4585 def : T2Pat<(atomic_load_32 t2addrmode_imm12:$addr),
4586 (t2LDRi12 t2addrmode_imm12:$addr)>;
4587 def : T2Pat<(atomic_load_32 t2addrmode_negimm8:$addr),
4588 (t2LDRi8 t2addrmode_negimm8:$addr)>;
4589 def : T2Pat<(atomic_load_32 t2addrmode_so_reg:$addr),
4590 (t2LDRs t2addrmode_so_reg:$addr)>;
4591 def : T2Pat<(atomic_store_8 t2addrmode_imm12:$addr, GPR:$val),
4592 (t2STRBi12 GPR:$val, t2addrmode_imm12:$addr)>;
4593 def : T2Pat<(atomic_store_8 t2addrmode_negimm8:$addr, GPR:$val),
4594 (t2STRBi8 GPR:$val, t2addrmode_negimm8:$addr)>;
4595 def : T2Pat<(atomic_store_8 t2addrmode_so_reg:$addr, GPR:$val),
4596 (t2STRBs GPR:$val, t2addrmode_so_reg:$addr)>;
4597 def : T2Pat<(atomic_store_16 t2addrmode_imm12:$addr, GPR:$val),
4598 (t2STRHi12 GPR:$val, t2addrmode_imm12:$addr)>;
4599 def : T2Pat<(atomic_store_16 t2addrmode_negimm8:$addr, GPR:$val),
4600 (t2STRHi8 GPR:$val, t2addrmode_negimm8:$addr)>;
4601 def : T2Pat<(atomic_store_16 t2addrmode_so_reg:$addr, GPR:$val),
4602 (t2STRHs GPR:$val, t2addrmode_so_reg:$addr)>;
4603 def : T2Pat<(atomic_store_32 t2addrmode_imm12:$addr, GPR:$val),
4604 (t2STRi12 GPR:$val, t2addrmode_imm12:$addr)>;
4605 def : T2Pat<(atomic_store_32 t2addrmode_negimm8:$addr, GPR:$val),
4606 (t2STRi8 GPR:$val, t2addrmode_negimm8:$addr)>;
4607 def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val),
4608 (t2STRs GPR:$val, t2addrmode_so_reg:$addr)>;
4610 let AddedComplexity = 8, Predicates = [IsThumb, HasAcquireRelease, HasV7Clrex] in {
4611 def : Pat<(atomic_load_acquire_8 addr_offset_none:$addr), (t2LDAB addr_offset_none:$addr)>;
4612 def : Pat<(atomic_load_acquire_16 addr_offset_none:$addr), (t2LDAH addr_offset_none:$addr)>;
4613 def : Pat<(atomic_load_acquire_32 addr_offset_none:$addr), (t2LDA addr_offset_none:$addr)>;
4614 def : Pat<(atomic_store_release_8 addr_offset_none:$addr, GPR:$val), (t2STLB GPR:$val, addr_offset_none:$addr)>;
4615 def : Pat<(atomic_store_release_16 addr_offset_none:$addr, GPR:$val), (t2STLH GPR:$val, addr_offset_none:$addr)>;
4616 def : Pat<(atomic_store_release_32 addr_offset_none:$addr, GPR:$val), (t2STL GPR:$val, addr_offset_none:$addr)>;
4620 //===----------------------------------------------------------------------===//
4621 // Assembler aliases
4624 // Aliases for ADC without the ".w" optional width specifier.
4625 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm",
4626 (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4627 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm",
4628 (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
4629 pred:$p, cc_out:$s)>;
4631 // Aliases for SBC without the ".w" optional width specifier.
4632 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm",
4633 (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4634 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
4635 (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
4636 pred:$p, cc_out:$s)>;
4638 // Aliases for ADD without the ".w" optional width specifier.
4639 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4640 (t2ADDri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p,
4642 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
4643 (t2ADDri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
4644 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
4645 (t2ADDrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4646 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
4647 (t2ADDrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
4648 pred:$p, cc_out:$s)>;
4649 // ... and with the destination and source register combined.
4650 def : t2InstAlias<"add${s}${p} $Rdn, $imm",
4651 (t2ADDri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4652 def : t2InstAlias<"add${p} $Rdn, $imm",
4653 (t2ADDri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
4654 def : t2InstAlias<"add${s}${p} $Rdn, $Rm",
4655 (t2ADDrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4656 def : t2InstAlias<"add${s}${p} $Rdn, $ShiftedRm",
4657 (t2ADDrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
4658 pred:$p, cc_out:$s)>;
4660 // add w/ negative immediates is just a sub.
4661 def : t2InstSubst<"add${s}${p} $Rd, $Rn, $imm",
4662 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
4664 def : t2InstSubst<"add${p} $Rd, $Rn, $imm",
4665 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4666 def : t2InstSubst<"add${s}${p} $Rdn, $imm",
4667 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4669 def : t2InstSubst<"add${p} $Rdn, $imm",
4670 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4672 def : t2InstSubst<"add${s}${p}.w $Rd, $Rn, $imm",
4673 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
4675 def : t2InstSubst<"addw${p} $Rd, $Rn, $imm",
4676 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4677 def : t2InstSubst<"add${s}${p}.w $Rdn, $imm",
4678 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4680 def : t2InstSubst<"addw${p} $Rdn, $imm",
4681 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4684 // Aliases for SUB without the ".w" optional width specifier.
4685 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm",
4686 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4687 def : t2InstAlias<"sub${p} $Rd, $Rn, $imm",
4688 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
4689 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $Rm",
4690 (t2SUBrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4691 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $ShiftedRm",
4692 (t2SUBrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
4693 pred:$p, cc_out:$s)>;
4694 // ... and with the destination and source register combined.
4695 def : t2InstAlias<"sub${s}${p} $Rdn, $imm",
4696 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4697 def : t2InstAlias<"sub${p} $Rdn, $imm",
4698 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
4699 def : t2InstAlias<"sub${s}${p}.w $Rdn, $Rm",
4700 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4701 def : t2InstAlias<"sub${s}${p} $Rdn, $Rm",
4702 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4703 def : t2InstAlias<"sub${s}${p} $Rdn, $ShiftedRm",
4704 (t2SUBrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
4705 pred:$p, cc_out:$s)>;
4707 // Alias for compares without the ".w" optional width specifier.
4708 def : t2InstAlias<"cmn${p} $Rn, $Rm",
4709 (t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4710 def : t2InstAlias<"teq${p} $Rn, $Rm",
4711 (t2TEQrr rGPR:$Rn, rGPR:$Rm, pred:$p)>;
4712 def : t2InstAlias<"tst${p} $Rn, $Rm",
4713 (t2TSTrr rGPR:$Rn, rGPR:$Rm, pred:$p)>;
4716 def : InstAlias<"dmb${p}", (t2DMB 0xf, pred:$p), 0>, Requires<[HasDB]>;
4717 def : InstAlias<"dsb${p}", (t2DSB 0xf, pred:$p), 0>, Requires<[HasDB]>;
4718 def : InstAlias<"isb${p}", (t2ISB 0xf, pred:$p), 0>, Requires<[HasDB]>;
4720 // Non-predicable aliases of a predicable DSB: the predicate is (14, 0) where
4721 // 14 = AL (always execute) and 0 = "instruction doesn't read the CPSR".
4722 def : InstAlias<"ssbb", (t2DSB 0x0, 14, 0), 1>, Requires<[HasDB, IsThumb2]>;
4723 def : InstAlias<"pssbb", (t2DSB 0x4, 14, 0), 1>, Requires<[HasDB, IsThumb2]>;
4725 // Armv8-R 'Data Full Barrier'
4726 def : InstAlias<"dfb${p}", (t2DSB 0xc, pred:$p), 1>, Requires<[HasDFB]>;
4728 // Alias for LDR, LDRB, LDRH, LDRSB, and LDRSH without the ".w" optional
4730 def : t2InstAlias<"ldr${p} $Rt, $addr",
4731 (t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4732 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4733 (t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4734 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4735 (t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4736 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4737 (t2LDRSBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4738 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4739 (t2LDRSHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4741 def : t2InstAlias<"ldr${p} $Rt, $addr",
4742 (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4743 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4744 (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4745 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4746 (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4747 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4748 (t2LDRSBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4749 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4750 (t2LDRSHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4752 def : t2InstAlias<"ldr${p} $Rt, $addr",
4753 (t2LDRpci GPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4754 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4755 (t2LDRBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4756 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4757 (t2LDRHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4758 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4759 (t2LDRSBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4760 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4761 (t2LDRSHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4763 // Alias for MVN with(out) the ".w" optional width specifier.
4764 def : t2InstAlias<"mvn${s}${p}.w $Rd, $imm",
4765 (t2MVNi rGPR:$Rd, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4766 def : t2InstAlias<"mvn${s}${p} $Rd, $Rm",
4767 (t2MVNr rGPR:$Rd, rGPR:$Rm, pred:$p, cc_out:$s)>;
4768 def : t2InstAlias<"mvn${s}${p} $Rd, $ShiftedRm",
4769 (t2MVNs rGPR:$Rd, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>;
4771 // PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT with the
4772 // input operands swapped when the shift amount is zero (i.e., unspecified).
4773 def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
4774 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
4775 Requires<[HasDSP, IsThumb2]>;
4776 def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
4777 (t2PKHBT rGPR:$Rd, rGPR:$Rm, rGPR:$Rn, 0, pred:$p), 0>,
4778 Requires<[HasDSP, IsThumb2]>;
4780 // PUSH/POP aliases for STM/LDM
4781 def : t2InstAlias<"push${p}.w $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
4782 def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
4783 def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4784 def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4786 // STMIA/STMIA_UPD aliases w/o the optional .w suffix
4787 def : t2InstAlias<"stm${p} $Rn, $regs",
4788 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4789 def : t2InstAlias<"stm${p} $Rn!, $regs",
4790 (t2STMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4792 // LDMIA/LDMIA_UPD aliases w/o the optional .w suffix
4793 def : t2InstAlias<"ldm${p} $Rn, $regs",
4794 (t2LDMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4795 def : t2InstAlias<"ldm${p} $Rn!, $regs",
4796 (t2LDMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4798 // STMDB/STMDB_UPD aliases w/ the optional .w suffix
4799 def : t2InstAlias<"stmdb${p}.w $Rn, $regs",
4800 (t2STMDB GPR:$Rn, pred:$p, reglist:$regs)>;
4801 def : t2InstAlias<"stmdb${p}.w $Rn!, $regs",
4802 (t2STMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4804 // LDMDB/LDMDB_UPD aliases w/ the optional .w suffix
4805 def : t2InstAlias<"ldmdb${p}.w $Rn, $regs",
4806 (t2LDMDB GPR:$Rn, pred:$p, reglist:$regs)>;
4807 def : t2InstAlias<"ldmdb${p}.w $Rn!, $regs",
4808 (t2LDMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4810 // Alias for REV/REV16/REVSH without the ".w" optional width specifier.
4811 def : t2InstAlias<"rev${p} $Rd, $Rm", (t2REV rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4812 def : t2InstAlias<"rev16${p} $Rd, $Rm", (t2REV16 rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4813 def : t2InstAlias<"revsh${p} $Rd, $Rm", (t2REVSH rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4816 // Alias for RSB without the ".w" optional width specifier, and with optional
4817 // implied destination register.
4818 def : t2InstAlias<"rsb${s}${p} $Rd, $Rn, $imm",
4819 (t2RSBri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4820 def : t2InstAlias<"rsb${s}${p} $Rdn, $imm",
4821 (t2RSBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4822 def : t2InstAlias<"rsb${s}${p} $Rdn, $Rm",
4823 (t2RSBrr rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4824 def : t2InstAlias<"rsb${s}${p} $Rdn, $ShiftedRm",
4825 (t2RSBrs rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$ShiftedRm, pred:$p,
4828 // SSAT/USAT optional shift operand.
4829 def : t2InstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
4830 (t2SSAT rGPR:$Rd, imm1_32:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
4831 def : t2InstAlias<"usat${p} $Rd, $sat_imm, $Rn",
4832 (t2USAT rGPR:$Rd, imm0_31:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
4834 // STM w/o the .w suffix.
4835 def : t2InstAlias<"stm${p} $Rn, $regs",
4836 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4838 // Alias for STR, STRB, and STRH without the ".w" optional
4840 def : t2InstAlias<"str${p} $Rt, $addr",
4841 (t2STRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4842 def : t2InstAlias<"strb${p} $Rt, $addr",
4843 (t2STRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4844 def : t2InstAlias<"strh${p} $Rt, $addr",
4845 (t2STRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4847 def : t2InstAlias<"str${p} $Rt, $addr",
4848 (t2STRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4849 def : t2InstAlias<"strb${p} $Rt, $addr",
4850 (t2STRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4851 def : t2InstAlias<"strh${p} $Rt, $addr",
4852 (t2STRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4854 // Extend instruction optional rotate operand.
4855 def : InstAlias<"sxtab${p} $Rd, $Rn, $Rm",
4856 (t2SXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
4857 Requires<[HasDSP, IsThumb2]>;
4858 def : InstAlias<"sxtah${p} $Rd, $Rn, $Rm",
4859 (t2SXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
4860 Requires<[HasDSP, IsThumb2]>;
4861 def : InstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
4862 (t2SXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
4863 Requires<[HasDSP, IsThumb2]>;
4864 def : InstAlias<"sxtb16${p} $Rd, $Rm",
4865 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p), 0>,
4866 Requires<[HasDSP, IsThumb2]>;
4868 def : t2InstAlias<"sxtb${p} $Rd, $Rm",
4869 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4870 def : t2InstAlias<"sxth${p} $Rd, $Rm",
4871 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4872 def : t2InstAlias<"sxtb${p}.w $Rd, $Rm",
4873 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4874 def : t2InstAlias<"sxth${p}.w $Rd, $Rm",
4875 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4877 def : InstAlias<"uxtab${p} $Rd, $Rn, $Rm",
4878 (t2UXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
4879 Requires<[HasDSP, IsThumb2]>;
4880 def : InstAlias<"uxtah${p} $Rd, $Rn, $Rm",
4881 (t2UXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
4882 Requires<[HasDSP, IsThumb2]>;
4883 def : InstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
4884 (t2UXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
4885 Requires<[HasDSP, IsThumb2]>;
4886 def : InstAlias<"uxtb16${p} $Rd, $Rm",
4887 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p), 0>,
4888 Requires<[HasDSP, IsThumb2]>;
4890 def : t2InstAlias<"uxtb${p} $Rd, $Rm",
4891 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4892 def : t2InstAlias<"uxth${p} $Rd, $Rm",
4893 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4894 def : t2InstAlias<"uxtb${p}.w $Rd, $Rm",
4895 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4896 def : t2InstAlias<"uxth${p}.w $Rd, $Rm",
4897 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4899 // Extend instruction w/o the ".w" optional width specifier.
4900 def : t2InstAlias<"uxtb${p} $Rd, $Rm$rot",
4901 (t2UXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4902 def : InstAlias<"uxtb16${p} $Rd, $Rm$rot",
4903 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p), 0>,
4904 Requires<[HasDSP, IsThumb2]>;
4905 def : t2InstAlias<"uxth${p} $Rd, $Rm$rot",
4906 (t2UXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4908 def : t2InstAlias<"sxtb${p} $Rd, $Rm$rot",
4909 (t2SXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4910 def : InstAlias<"sxtb16${p} $Rd, $Rm$rot",
4911 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p), 0>,
4912 Requires<[HasDSP, IsThumb2]>;
4913 def : t2InstAlias<"sxth${p} $Rd, $Rm$rot",
4914 (t2SXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4917 // "mov Rd, t2_so_imm_not" can be handled via "mvn" in assembly, just like
4919 def : t2InstSubst<"mov${p} $Rd, $imm",
4920 (t2MVNi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
4921 def : t2InstSubst<"mvn${s}${p} $Rd, $imm",
4922 (t2MOVi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, s_cc_out:$s)>;
4923 // Same for AND <--> BIC
4924 def : t2InstSubst<"bic${s}${p} $Rd, $Rn, $imm",
4925 (t2ANDri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
4926 pred:$p, cc_out:$s)>;
4927 def : t2InstSubst<"bic${s}${p} $Rdn, $imm",
4928 (t2ANDri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
4929 pred:$p, cc_out:$s)>;
4930 def : t2InstSubst<"bic${s}${p}.w $Rd, $Rn, $imm",
4931 (t2ANDri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
4932 pred:$p, cc_out:$s)>;
4933 def : t2InstSubst<"bic${s}${p}.w $Rdn, $imm",
4934 (t2ANDri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
4935 pred:$p, cc_out:$s)>;
4936 def : t2InstSubst<"and${s}${p} $Rd, $Rn, $imm",
4937 (t2BICri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
4938 pred:$p, cc_out:$s)>;
4939 def : t2InstSubst<"and${s}${p} $Rdn, $imm",
4940 (t2BICri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
4941 pred:$p, cc_out:$s)>;
4942 def : t2InstSubst<"and${s}${p}.w $Rd, $Rn, $imm",
4943 (t2BICri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
4944 pred:$p, cc_out:$s)>;
4945 def : t2InstSubst<"and${s}${p}.w $Rdn, $imm",
4946 (t2BICri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
4947 pred:$p, cc_out:$s)>;
4949 def : t2InstSubst<"orn${s}${p} $Rd, $Rn, $imm",
4950 (t2ORRri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
4951 pred:$p, cc_out:$s)>;
4952 def : t2InstSubst<"orn${s}${p} $Rdn, $imm",
4953 (t2ORRri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
4954 pred:$p, cc_out:$s)>;
4955 def : t2InstSubst<"orr${s}${p} $Rd, $Rn, $imm",
4956 (t2ORNri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
4957 pred:$p, cc_out:$s)>;
4958 def : t2InstSubst<"orr${s}${p} $Rdn, $imm",
4959 (t2ORNri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
4960 pred:$p, cc_out:$s)>;
4961 // Likewise, "add Rd, t2_so_imm_neg" -> sub
4962 def : t2InstSubst<"add${s}${p} $Rd, $Rn, $imm",
4963 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm,
4964 pred:$p, cc_out:$s)>;
4965 def : t2InstSubst<"add${s}${p} $Rd, $imm",
4966 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rd, t2_so_imm_neg:$imm,
4967 pred:$p, cc_out:$s)>;
4968 // Same for CMP <--> CMN via t2_so_imm_neg
4969 def : t2InstSubst<"cmp${p} $Rd, $imm",
4970 (t2CMNri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
4971 def : t2InstSubst<"cmn${p} $Rd, $imm",
4972 (t2CMPri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
4975 // Wide 'mul' encoding can be specified with only two operands.
4976 def : t2InstAlias<"mul${p} $Rn, $Rm",
4977 (t2MUL rGPR:$Rn, rGPR:$Rm, rGPR:$Rn, pred:$p)>;
4979 // "neg" is and alias for "rsb rd, rn, #0"
4980 def : t2InstAlias<"neg${s}${p} $Rd, $Rm",
4981 (t2RSBri rGPR:$Rd, rGPR:$Rm, 0, pred:$p, cc_out:$s)>;
4983 // MOV so_reg assembler pseudos. InstAlias isn't expressive enough for
4984 // these, unfortunately.
4985 // FIXME: LSL #0 in the shift should allow SP to be used as either the
4986 // source or destination (but not both).
4987 def t2MOVsi: t2AsmPseudo<"mov${p} $Rd, $shift",
4988 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
4989 def t2MOVSsi: t2AsmPseudo<"movs${p} $Rd, $shift",
4990 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
4992 def t2MOVsr: t2AsmPseudo<"mov${p} $Rd, $shift",
4993 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
4994 def t2MOVSsr: t2AsmPseudo<"movs${p} $Rd, $shift",
4995 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
4997 // Aliases for the above with the .w qualifier
4998 def : t2InstAlias<"mov${p}.w $Rd, $shift",
4999 (t2MOVsi rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
5000 def : t2InstAlias<"movs${p}.w $Rd, $shift",
5001 (t2MOVSsi rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
5002 def : t2InstAlias<"mov${p}.w $Rd, $shift",
5003 (t2MOVsr rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
5004 def : t2InstAlias<"movs${p}.w $Rd, $shift",
5005 (t2MOVSsr rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
5007 // ADR w/o the .w suffix
5008 def : t2InstAlias<"adr${p} $Rd, $addr",
5009 (t2ADR rGPR:$Rd, t2adrlabel:$addr, pred:$p)>;
5011 // LDR(literal) w/ alternate [pc, #imm] syntax.
5012 def t2LDRpcrel : t2AsmPseudo<"ldr${p} $Rt, $addr",
5013 (ins GPR:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5014 def t2LDRBpcrel : t2AsmPseudo<"ldrb${p} $Rt, $addr",
5015 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5016 def t2LDRHpcrel : t2AsmPseudo<"ldrh${p} $Rt, $addr",
5017 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5018 def t2LDRSBpcrel : t2AsmPseudo<"ldrsb${p} $Rt, $addr",
5019 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5020 def t2LDRSHpcrel : t2AsmPseudo<"ldrsh${p} $Rt, $addr",
5021 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5022 // Version w/ the .w suffix.
5023 def : t2InstAlias<"ldr${p}.w $Rt, $addr",
5024 (t2LDRpcrel GPR:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p), 0>;
5025 def : t2InstAlias<"ldrb${p}.w $Rt, $addr",
5026 (t2LDRBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5027 def : t2InstAlias<"ldrh${p}.w $Rt, $addr",
5028 (t2LDRHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5029 def : t2InstAlias<"ldrsb${p}.w $Rt, $addr",
5030 (t2LDRSBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5031 def : t2InstAlias<"ldrsh${p}.w $Rt, $addr",
5032 (t2LDRSHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5034 def : t2InstAlias<"add${p} $Rd, pc, $imm",
5035 (t2ADR rGPR:$Rd, imm0_4095:$imm, pred:$p)>;
5037 // Pseudo instruction ldr Rt, =immediate
5039 : t2AsmPseudo<"ldr${p} $Rt, $immediate",
5040 (ins GPR:$Rt, const_pool_asm_imm:$immediate, pred:$p)>;
5041 // Version w/ the .w suffix.
5042 def : t2InstAlias<"ldr${p}.w $Rt, $immediate",
5043 (t2LDRConstPool GPRnopc:$Rt,
5044 const_pool_asm_imm:$immediate, pred:$p)>;
5046 // PLD/PLDW/PLI with alternate literal form.
5047 def : t2InstAlias<"pld${p} $addr",
5048 (t2PLDpci t2ldr_pcrel_imm12:$addr, pred:$p)>;
5049 def : InstAlias<"pli${p} $addr",
5050 (t2PLIpci t2ldr_pcrel_imm12:$addr, pred:$p), 0>,
5051 Requires<[IsThumb2,HasV7]>;
5054 //===----------------------------------------------------------------------===//
5055 // ARMv8.1m instructions
5058 class V8_1MI<dag oops, dag iops, AddrMode am, InstrItinClass itin, string asm,
5059 string ops, string cstr, list<dag> pattern>
5060 : Thumb2XI<oops, iops, am, 4, itin, !strconcat(asm, "\t", ops), cstr,
5062 Requires<[HasV8_1MMainline]>;
5064 def t2CLRM : V8_1MI<(outs),
5065 (ins pred:$p, reglist_with_apsr:$regs, variable_ops),
5066 AddrModeNone, NoItinerary, "clrm", "${p}\t$regs", "", []> {
5069 let Inst{31-16} = 0b1110100010011111;
5070 let Inst{15-14} = regs{15-14};
5072 let Inst{12-0} = regs{12-0};
5075 class t2BF<dag iops, string asm, string ops>
5076 : V8_1MI<(outs ), iops, AddrModeNone, NoItinerary, asm, ops, "", []> {
5078 let Inst{31-27} = 0b11110;
5079 let Inst{15-14} = 0b11;
5083 let Predicates = [IsThumb2, HasV8_1MMainline, HasLOB];
5086 def t2BF_LabelPseudo
5087 : t2PseudoInst<(outs ), (ins pclabel:$cp), 0, NoItinerary, []> {
5088 let isTerminator = 1;
5089 let Predicates = [IsThumb2, HasV8_1MMainline, HasLOB];
5092 def t2BFi : t2BF<(ins bflabel_u4:$b_label, bflabel_s16:$label, pred:$p),
5093 !strconcat("bf", "${p}"), "$b_label, $label"> {
5097 let Inst{26-23} = b_label{3-0};
5098 let Inst{22-21} = 0b10;
5099 let Inst{20-16} = label{15-11};
5101 let Inst{11} = label{0};
5102 let Inst{10-1} = label{10-1};
5105 def t2BFic : t2BF<(ins bflabel_u4:$b_label, bflabel_s12:$label,
5106 bfafter_target:$ba_label, pred_noal:$bcond), "bfcsel",
5107 "$b_label, $label, $ba_label, $bcond"> {
5113 let Inst{26-23} = b_label{3-0};
5115 let Inst{21-18} = bcond{3-0};
5116 let Inst{17} = ba_label{0};
5117 let Inst{16} = label{11};
5119 let Inst{11} = label{0};
5120 let Inst{10-1} = label{10-1};
5123 def t2BFr : t2BF<(ins bflabel_u4:$b_label, rGPR:$Rn, pred:$p),
5124 !strconcat("bfx", "${p}"), "$b_label, $Rn"> {
5128 let Inst{26-23} = b_label{3-0};
5129 let Inst{22-20} = 0b110;
5130 let Inst{19-16} = Rn{3-0};
5131 let Inst{13-1} = 0b1000000000000;
5134 def t2BFLi : t2BF<(ins bflabel_u4:$b_label, bflabel_s18:$label, pred:$p),
5135 !strconcat("bfl", "${p}"), "$b_label, $label"> {
5139 let Inst{26-23} = b_label{3-0};
5140 let Inst{22-16} = label{17-11};
5142 let Inst{11} = label{0};
5143 let Inst{10-1} = label{10-1};
5146 def t2BFLr : t2BF<(ins bflabel_u4:$b_label, rGPR:$Rn, pred:$p),
5147 !strconcat("bflx", "${p}"), "$b_label, $Rn"> {
5151 let Inst{26-23} = b_label{3-0};
5152 let Inst{22-20} = 0b111;
5153 let Inst{19-16} = Rn{3-0};
5154 let Inst{13-1} = 0b1000000000000;
5157 class t2LOL<dag oops, dag iops, string asm, string ops>
5158 : V8_1MI<oops, iops, AddrModeNone, NoItinerary, asm, ops, "", [] > {
5159 let Inst{31-23} = 0b111100000;
5160 let Inst{15-14} = 0b11;
5163 let isTerminator = 1;
5164 let DecoderMethod = "DecodeLOLoop";
5165 let Predicates = [IsThumb2, HasV8_1MMainline, HasLOB];
5168 let isNotDuplicable = 1 in {
5169 def t2WLS : t2LOL<(outs GPRlr:$LR),
5170 (ins rGPR:$Rn, wlslabel_u11:$label),
5171 "wls", "$LR, $Rn, $label"> {
5174 let Inst{22-20} = 0b100;
5175 let Inst{19-16} = Rn{3-0};
5176 let Inst{13-12} = 0b00;
5177 let Inst{11} = label{0};
5178 let Inst{10-1} = label{10-1};
5179 let usesCustomInserter = 1;
5182 def t2DLS : t2LOL<(outs GPRlr:$LR), (ins rGPR:$Rn),
5183 "dls", "$LR, $Rn"> {
5186 let isTerminator = 0;
5187 let Inst{22-20} = 0b100;
5188 let Inst{19-16} = Rn{3-0};
5189 let Inst{13-1} = 0b1000000000000;
5190 let usesCustomInserter = 1;
5193 def t2LEUpdate : t2LOL<(outs GPRlr:$LRout),
5194 (ins GPRlr:$LRin, lelabel_u11:$label),
5195 "le", "$LRin, $label"> {
5197 let Inst{22-16} = 0b0001111;
5198 let Inst{13-12} = 0b00;
5199 let Inst{11} = label{0};
5200 let Inst{10-1} = label{10-1};
5201 let usesCustomInserter = 1;
5204 def t2LE : t2LOL<(outs ), (ins lelabel_u11:$label), "le", "$label"> {
5206 let Inst{22-16} = 0b0101111;
5207 let Inst{13-12} = 0b00;
5208 let Inst{11} = label{0};
5209 let Inst{10-1} = label{10-1};
5213 t2PseudoInst<(outs), (ins rGPR:$elts), 4, IIC_Br,
5214 [(int_set_loop_iterations rGPR:$elts)]>, Sched<[WriteBr]>;
5217 t2PseudoInst<(outs GPRlr:$Rm), (ins GPRlr:$Rn, imm0_7:$size),
5218 4, IIC_Br, []>, Sched<[WriteBr]>;
5220 let isBranch = 1, isTerminator = 1, hasSideEffects = 1, Defs = [CPSR] in {
5221 // Set WhileLoopStart and LoopEnd to occupy 8 bytes because they may
5222 // get converted into t2CMP and t2Bcc.
5223 def t2WhileLoopStart :
5224 t2PseudoInst<(outs),
5225 (ins rGPR:$elts, brtarget:$target),
5230 t2PseudoInst<(outs), (ins GPRlr:$elts, brtarget:$target),
5231 8, IIC_Br, []>, Sched<[WriteBr]>;
5233 } // end isBranch, isTerminator, hasSideEffects
5235 } // end isNotDuplicable
5237 class CS<string iname, bits<4> opcode, list<dag> pattern=[]>
5238 : V8_1MI<(outs rGPR:$Rd), (ins GPRwithZRnosp:$Rn, GPRwithZRnosp:$Rm, pred_noal:$fcond),
5239 AddrModeNone, NoItinerary, iname, "$Rd, $Rn, $Rm, $fcond", "", pattern> {
5245 let Inst{31-20} = 0b111010100101;
5246 let Inst{19-16} = Rn{3-0};
5247 let Inst{15-12} = opcode;
5248 let Inst{11-8} = Rd{3-0};
5249 let Inst{7-4} = fcond{3-0};
5250 let Inst{3-0} = Rm{3-0};
5255 def t2CSEL : CS<"csel", 0b1000>;
5256 def t2CSINC : CS<"csinc", 0b1001>;
5257 def t2CSINV : CS<"csinv", 0b1010>;
5258 def t2CSNEG : CS<"csneg", 0b1011>;
5260 let Predicates = [HasV8_1MMainline] in {
5261 def : T2Pat<(ARMcsinc GPRwithZR:$tval, GPRwithZR:$fval, imm0_31:$imm),
5262 (t2CSINC GPRwithZR:$tval, GPRwithZR:$fval, imm0_31:$imm)>;
5263 def : T2Pat<(ARMcsinv GPRwithZR:$tval, GPRwithZR:$fval, imm0_31:$imm),
5264 (t2CSINV GPRwithZR:$tval, GPRwithZR:$fval, imm0_31:$imm)>;
5265 def : T2Pat<(ARMcsneg GPRwithZR:$tval, GPRwithZR:$fval, imm0_31:$imm),
5266 (t2CSNEG GPRwithZR:$tval, GPRwithZR:$fval, imm0_31:$imm)>;
5268 multiclass ModifiedV8_1CSEL<Instruction Insn, dag modvalue> {
5269 def : T2Pat<(ARMcmov modvalue, GPRwithZR:$tval, cmovpred:$imm),
5270 (Insn GPRwithZR:$tval, GPRwithZR:$fval, imm0_31:$imm)>;
5271 def : T2Pat<(ARMcmov GPRwithZR:$tval, modvalue, cmovpred:$imm),
5272 (Insn GPRwithZR:$tval, GPRwithZR:$fval,
5273 (i32 (inv_cond_XFORM imm:$imm)))>;
5275 defm : ModifiedV8_1CSEL<t2CSINC, (add rGPR:$fval, 1)>;
5276 defm : ModifiedV8_1CSEL<t2CSINV, (xor rGPR:$fval, -1)>;
5277 defm : ModifiedV8_1CSEL<t2CSNEG, (sub 0, rGPR:$fval)>;
5281 let Predicates = [HasV8_1MMainline] in {
5282 def : InstAlias<"csetm\t$Rd, $fcond",
5283 (t2CSINV rGPR:$Rd, ZR, ZR, pred_noal_inv:$fcond)>;
5285 def : InstAlias<"cset\t$Rd, $fcond",
5286 (t2CSINC rGPR:$Rd, ZR, ZR, pred_noal_inv:$fcond)>;
5288 def : InstAlias<"cinc\t$Rd, $Rn, $fcond",
5289 (t2CSINC rGPR:$Rd, GPRwithZRnosp:$Rn, GPRwithZRnosp:$Rn, pred_noal_inv:$fcond)>;
5291 def : InstAlias<"cinv\t$Rd, $Rn, $fcond",
5292 (t2CSINV rGPR:$Rd, GPRwithZRnosp:$Rn, GPRwithZRnosp:$Rn, pred_noal_inv:$fcond)>;
5294 def : InstAlias<"cneg\t$Rd, $Rn, $fcond",
5295 (t2CSNEG rGPR:$Rd, GPRwithZRnosp:$Rn, GPRwithZRnosp:$Rn, pred_noal_inv:$fcond)>;