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 ImmLeaf<i32, [{ return Imm > 0 && Imm <= 32; }]> {
50 let ParserMatchClass = mve_shift_imm;
51 let DecoderMethod = "DecodeLongShiftOperand";
54 // Shifted operands. No register controlled shifts for Thumb2.
55 // Note: We do not support rrx shifted operands yet.
56 def t2_so_reg : Operand<i32>, // reg imm
57 ComplexPattern<i32, 2, "SelectShiftImmShifterOperand",
59 let EncoderMethod = "getT2SORegOpValue";
60 let PrintMethod = "printT2SOOperand";
61 let DecoderMethod = "DecodeSORegImmOperand";
62 let ParserMatchClass = ShiftedImmAsmOperand;
63 let MIOperandInfo = (ops rGPR, i32imm);
66 // Same as above, but only matching on a single use node.
67 def t2_so_reg_oneuse : Operand<i32>,
68 ComplexPattern<i32, 2,
69 "SelectShiftImmShifterOperandOneUse",
72 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
73 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
74 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), SDLoc(N),
78 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
79 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
80 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), SDLoc(N),
84 // so_imm_notSext_XFORM - Return a so_imm value packed into the format
85 // described for so_imm_notSext def below, with sign extension from 16
87 def t2_so_imm_notSext16_XFORM : SDNodeXForm<imm, [{
88 APInt apIntN = N->getAPIntValue();
89 unsigned N16bitSignExt = apIntN.trunc(16).sext(32).getZExtValue();
90 return CurDAG->getTargetConstant(~N16bitSignExt, SDLoc(N), MVT::i32);
93 // t2_so_imm - Match a 32-bit immediate operand, which is an
94 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
95 // immediate splatted into multiple bytes of the word.
96 def t2_so_imm_asmoperand : AsmOperandClass {
98 let RenderMethod = "addImmOperands";
101 def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{
102 return ARM_AM::getT2SOImmVal(Imm) != -1;
104 let ParserMatchClass = t2_so_imm_asmoperand;
105 let EncoderMethod = "getT2SOImmOpValue";
106 let DecoderMethod = "DecodeT2SOImm";
109 // t2_so_imm_not - Match an immediate that is a complement
111 // Note: this pattern doesn't require an encoder method and such, as it's
112 // only used on aliases (Pat<> and InstAlias<>). The actual encoding
113 // is handled by the destination instructions, which use t2_so_imm.
114 def t2_so_imm_not_asmoperand : AsmOperandClass { let Name = "T2SOImmNot"; }
115 def t2_so_imm_not : Operand<i32>, PatLeaf<(imm), [{
116 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
117 }], t2_so_imm_not_XFORM> {
118 let ParserMatchClass = t2_so_imm_not_asmoperand;
121 // t2_so_imm_notSext - match an immediate that is a complement of a t2_so_imm
122 // if the upper 16 bits are zero.
123 def t2_so_imm_notSext : Operand<i32>, PatLeaf<(imm), [{
124 APInt apIntN = N->getAPIntValue();
125 if (!apIntN.isIntN(16)) return false;
126 unsigned N16bitSignExt = apIntN.trunc(16).sext(32).getZExtValue();
127 return ARM_AM::getT2SOImmVal(~N16bitSignExt) != -1;
128 }], t2_so_imm_notSext16_XFORM> {
129 let ParserMatchClass = t2_so_imm_not_asmoperand;
132 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
133 def t2_so_imm_neg_asmoperand : AsmOperandClass { let Name = "T2SOImmNeg"; }
134 def t2_so_imm_neg : Operand<i32>, ImmLeaf<i32, [{
135 return Imm && ARM_AM::getT2SOImmVal(-(uint32_t)Imm) != -1;
136 }], t2_so_imm_neg_XFORM> {
137 let ParserMatchClass = t2_so_imm_neg_asmoperand;
140 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0,4095].
141 def imm0_4095_asmoperand: ImmAsmOperand<0,4095> { let Name = "Imm0_4095"; }
142 def imm0_4095 : Operand<i32>, ImmLeaf<i32, [{
143 return Imm >= 0 && Imm < 4096;
145 let ParserMatchClass = imm0_4095_asmoperand;
148 def imm0_4095_neg_asmoperand: AsmOperandClass { let Name = "Imm0_4095Neg"; }
149 def imm0_4095_neg : Operand<i32>, PatLeaf<(i32 imm), [{
150 return (uint32_t)(-N->getZExtValue()) < 4096;
152 let ParserMatchClass = imm0_4095_neg_asmoperand;
155 def imm1_255_neg : PatLeaf<(i32 imm), [{
156 uint32_t Val = -N->getZExtValue();
157 return (Val > 0 && Val < 255);
160 def imm0_255_not : PatLeaf<(i32 imm), [{
161 return (uint32_t)(~N->getZExtValue()) < 255;
164 def lo5AllOne : PatLeaf<(i32 imm), [{
165 // Returns true if all low 5-bits are 1.
166 return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL;
169 // Define Thumb2 specific addressing modes.
171 // t2_addr_offset_none := reg
172 def MemNoOffsetT2AsmOperand
173 : AsmOperandClass { let Name = "MemNoOffsetT2"; }
174 def t2_addr_offset_none : MemOperand {
175 let PrintMethod = "printAddrMode7Operand";
176 let DecoderMethod = "DecodeGPRnopcRegisterClass";
177 let ParserMatchClass = MemNoOffsetT2AsmOperand;
178 let MIOperandInfo = (ops GPRnopc:$base);
181 // t2_nosp_addr_offset_none := reg
182 def MemNoOffsetT2NoSpAsmOperand
183 : AsmOperandClass { let Name = "MemNoOffsetT2NoSp"; }
184 def t2_nosp_addr_offset_none : MemOperand {
185 let PrintMethod = "printAddrMode7Operand";
186 let DecoderMethod = "DecoderGPRRegisterClass";
187 let ParserMatchClass = MemNoOffsetT2NoSpAsmOperand;
188 let MIOperandInfo = (ops rGPR:$base);
191 // t2addrmode_imm12 := reg + imm12
192 def t2addrmode_imm12_asmoperand : AsmOperandClass {let Name="MemUImm12Offset";}
193 def t2addrmode_imm12 : MemOperand,
194 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
195 let PrintMethod = "printAddrModeImm12Operand<false>";
196 let EncoderMethod = "getAddrModeImm12OpValue";
197 let DecoderMethod = "DecodeT2AddrModeImm12";
198 let ParserMatchClass = t2addrmode_imm12_asmoperand;
199 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
202 // t2ldrlabel := imm12
203 def t2ldrlabel : MemOperand {
204 let EncoderMethod = "getAddrModeImm12OpValue";
205 let PrintMethod = "printThumbLdrLabelOperand";
208 def t2ldr_pcrel_imm12_asmoperand : AsmOperandClass {let Name = "MemPCRelImm12";}
209 def t2ldr_pcrel_imm12 : Operand<i32> {
210 let ParserMatchClass = t2ldr_pcrel_imm12_asmoperand;
211 // used for assembler pseudo instruction and maps to t2ldrlabel, so
212 // doesn't need encoder or print methods of its own.
215 // ADR instruction labels.
216 def t2adrlabel : Operand<i32> {
217 let EncoderMethod = "getT2AdrLabelOpValue";
218 let PrintMethod = "printAdrLabelOperand<0>";
221 // t2addrmode_posimm8 := reg + imm8
222 def MemPosImm8OffsetAsmOperand : AsmOperandClass {
223 let Name="MemPosImm8Offset";
224 let RenderMethod = "addMemImmOffsetOperands";
226 def t2addrmode_posimm8 : MemOperand {
227 let PrintMethod = "printT2AddrModeImm8Operand<false>";
228 let EncoderMethod = "getT2AddrModeImmOpValue<8,0>";
229 let DecoderMethod = "DecodeT2AddrModeImm8";
230 let ParserMatchClass = MemPosImm8OffsetAsmOperand;
231 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
234 // t2addrmode_negimm8 := reg - imm8
235 def MemNegImm8OffsetAsmOperand : AsmOperandClass {
236 let Name="MemNegImm8Offset";
237 let RenderMethod = "addMemImmOffsetOperands";
239 def t2addrmode_negimm8 : MemOperand,
240 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
241 let PrintMethod = "printT2AddrModeImm8Operand<false>";
242 let EncoderMethod = "getT2AddrModeImmOpValue<8,0>";
243 let DecoderMethod = "DecodeT2AddrModeImm8";
244 let ParserMatchClass = MemNegImm8OffsetAsmOperand;
245 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
248 // t2addrmode_imm8 := reg +/- imm8
249 def MemImm8OffsetAsmOperand : AsmOperandClass {
250 let Name = "MemImm8Offset";
251 let RenderMethod = "addMemImmOffsetOperands";
253 class T2AddrMode_Imm8 : MemOperand,
254 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
255 let EncoderMethod = "getT2AddrModeImmOpValue<8,0>";
256 let DecoderMethod = "DecodeT2AddrModeImm8";
257 let ParserMatchClass = MemImm8OffsetAsmOperand;
258 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
261 def t2addrmode_imm8 : T2AddrMode_Imm8 {
262 let PrintMethod = "printT2AddrModeImm8Operand<false>";
265 def t2addrmode_imm8_pre : T2AddrMode_Imm8 {
266 let PrintMethod = "printT2AddrModeImm8Operand<true>";
269 def t2am_imm8_offset : MemOperand,
270 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
271 [], [SDNPWantRoot]> {
272 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
273 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
274 let DecoderMethod = "DecodeT2Imm8";
277 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
278 def MemImm8s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm8s4Offset";}
279 class T2AddrMode_Imm8s4 : MemOperand,
280 ComplexPattern<i32, 2, "SelectT2AddrModeImm8<2>", []> {
281 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
282 let DecoderMethod = "DecodeT2AddrModeImm8s4";
283 let ParserMatchClass = MemImm8s4OffsetAsmOperand;
284 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
287 def t2addrmode_imm8s4 : T2AddrMode_Imm8s4 {
288 let PrintMethod = "printT2AddrModeImm8s4Operand<false>";
291 def t2addrmode_imm8s4_pre : T2AddrMode_Imm8s4 {
292 let PrintMethod = "printT2AddrModeImm8s4Operand<true>";
295 def t2am_imm8s4_offset_asmoperand : AsmOperandClass { let Name = "Imm8s4"; }
296 def t2am_imm8s4_offset : MemOperand {
297 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
298 let EncoderMethod = "getT2ScaledImmOpValue<8,2>";
299 let DecoderMethod = "DecodeT2Imm8S4";
302 // t2addrmode_imm7s4 := reg +/- (imm7 << 2)
303 def MemImm7s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm7s4Offset";}
304 class T2AddrMode_Imm7s4 : MemOperand {
305 let EncoderMethod = "getT2AddrModeImm7s4OpValue";
306 let DecoderMethod = "DecodeT2AddrModeImm7<2,0>";
307 let ParserMatchClass = MemImm7s4OffsetAsmOperand;
308 let MIOperandInfo = (ops GPRnopc:$base, i32imm:$offsimm);
311 def t2addrmode_imm7s4 : T2AddrMode_Imm7s4 {
312 // They are printed the same way as the imm8 version
313 let PrintMethod = "printT2AddrModeImm8s4Operand<false>";
316 def t2addrmode_imm7s4_pre : T2AddrMode_Imm7s4 {
317 // They are printed the same way as the imm8 version
318 let PrintMethod = "printT2AddrModeImm8s4Operand<true>";
321 def t2am_imm7s4_offset_asmoperand : AsmOperandClass { let Name = "Imm7s4"; }
322 def t2am_imm7s4_offset : MemOperand {
323 // They are printed the same way as the imm8 version
324 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
325 let ParserMatchClass = t2am_imm7s4_offset_asmoperand;
326 let EncoderMethod = "getT2ScaledImmOpValue<7,2>";
327 let DecoderMethod = "DecodeT2Imm7S4";
330 // t2addrmode_imm0_1020s4 := reg + (imm8 << 2)
331 def MemImm0_1020s4OffsetAsmOperand : AsmOperandClass {
332 let Name = "MemImm0_1020s4Offset";
334 def t2addrmode_imm0_1020s4 : MemOperand,
335 ComplexPattern<i32, 2, "SelectT2AddrModeExclusive"> {
336 let PrintMethod = "printT2AddrModeImm0_1020s4Operand";
337 let EncoderMethod = "getT2AddrModeImm0_1020s4OpValue";
338 let DecoderMethod = "DecodeT2AddrModeImm0_1020s4";
339 let ParserMatchClass = MemImm0_1020s4OffsetAsmOperand;
340 let MIOperandInfo = (ops GPRnopc:$base, i32imm:$offsimm);
343 // t2addrmode_so_reg := reg + (reg << imm2)
344 def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";}
345 def t2addrmode_so_reg : MemOperand,
346 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
347 let PrintMethod = "printT2AddrModeSoRegOperand";
348 let EncoderMethod = "getT2AddrModeSORegOpValue";
349 let DecoderMethod = "DecodeT2AddrModeSOReg";
350 let ParserMatchClass = t2addrmode_so_reg_asmoperand;
351 let MIOperandInfo = (ops GPRnopc:$base, rGPR:$offsreg, i32imm:$offsimm);
354 // Addresses for the TBB/TBH instructions.
355 def addrmode_tbb_asmoperand : AsmOperandClass { let Name = "MemTBB"; }
356 def addrmode_tbb : MemOperand {
357 let PrintMethod = "printAddrModeTBB";
358 let ParserMatchClass = addrmode_tbb_asmoperand;
359 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
361 def addrmode_tbh_asmoperand : AsmOperandClass { let Name = "MemTBH"; }
362 def addrmode_tbh : MemOperand {
363 let PrintMethod = "printAddrModeTBH";
364 let ParserMatchClass = addrmode_tbh_asmoperand;
365 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
368 // Define ARMv8.1-M specific addressing modes.
370 // Label operands for BF/BFL/WLS/DLS/LE
371 class BFLabelOp<string signed, string isNeg, string zeroPermitted, string size,
374 let EncoderMethod = !strconcat("getBFTargetOpValue<", isNeg, ", ",
376 let OperandType = "OPERAND_PCREL";
377 let DecoderMethod = !strconcat("DecodeBFLabelOperand<", signed, ", ",
378 isNeg, ", ", zeroPermitted, ", ", size, ">");
380 def bflabel_u4 : BFLabelOp<"false", "false", "false", "4", "ARM::fixup_bf_branch">;
381 def bflabel_s12 : BFLabelOp<"true", "false", "true", "12", "ARM::fixup_bfc_target">;
382 def bflabel_s16 : BFLabelOp<"true", "false", "true", "16", "ARM::fixup_bf_target">;
383 def bflabel_s18 : BFLabelOp<"true", "false", "true", "18", "ARM::fixup_bfl_target">;
385 def wlslabel_u11_asmoperand : AsmOperandClass {
386 let Name = "WLSLabel";
387 let RenderMethod = "addImmOperands";
388 let PredicateMethod = "isUnsignedOffset<11, 1>";
389 let DiagnosticString =
390 "loop end is out of range or not a positive multiple of 2";
392 def wlslabel_u11 : BFLabelOp<"false", "false", "true", "11", "ARM::fixup_wls"> {
393 let ParserMatchClass = wlslabel_u11_asmoperand;
395 def lelabel_u11_asmoperand : AsmOperandClass {
396 let Name = "LELabel";
397 let RenderMethod = "addImmOperands";
398 let PredicateMethod = "isLEOffset";
399 let DiagnosticString =
400 "loop start is out of range or not a negative multiple of 2";
402 def lelabel_u11 : BFLabelOp<"false", "true", "true", "11", "ARM::fixup_le"> {
403 let ParserMatchClass = lelabel_u11_asmoperand;
406 def bfafter_target : Operand<OtherVT> {
407 let EncoderMethod = "getBFAfterTargetOpValue";
408 let OperandType = "OPERAND_PCREL";
409 let DecoderMethod = "DecodeBFAfterTargetOperand";
412 // pred operand excluding AL
413 def pred_noal_asmoperand : AsmOperandClass {
414 let Name = "CondCodeNoAL";
415 let RenderMethod = "addITCondCodeOperands";
416 let PredicateMethod = "isITCondCodeNoAL";
417 let ParserMethod = "parseITCondCode";
419 def pred_noal : Operand<i32> {
420 let PrintMethod = "printMandatoryPredicateOperand";
421 let ParserMatchClass = pred_noal_asmoperand;
422 let DecoderMethod = "DecodePredNoALOperand";
426 // CSEL aliases inverted predicate
427 def pred_noal_inv_asmoperand : AsmOperandClass {
428 let Name = "CondCodeNoALInv";
429 let RenderMethod = "addITCondCodeInvOperands";
430 let PredicateMethod = "isITCondCodeNoAL";
431 let ParserMethod = "parseITCondCode";
433 def pred_noal_inv : Operand<i32> {
434 let PrintMethod = "printMandatoryInvertedPredicateOperand";
435 let ParserMatchClass = pred_noal_inv_asmoperand;
437 //===----------------------------------------------------------------------===//
438 // Multiclass helpers...
442 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
443 string opc, string asm, list<dag> pattern>
444 : T2I<oops, iops, itin, opc, asm, pattern> {
449 let Inst{26} = imm{11};
450 let Inst{14-12} = imm{10-8};
451 let Inst{7-0} = imm{7-0};
455 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
456 string opc, string asm, list<dag> pattern>
457 : T2sI<oops, iops, itin, opc, asm, pattern> {
463 let Inst{26} = imm{11};
464 let Inst{14-12} = imm{10-8};
465 let Inst{7-0} = imm{7-0};
468 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
469 string opc, string asm, list<dag> pattern>
470 : T2I<oops, iops, itin, opc, asm, pattern> {
474 let Inst{19-16} = Rn;
475 let Inst{26} = imm{11};
476 let Inst{14-12} = imm{10-8};
477 let Inst{7-0} = imm{7-0};
481 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
482 string opc, string asm, list<dag> pattern>
483 : T2I<oops, iops, itin, opc, asm, pattern> {
488 let Inst{3-0} = ShiftedRm{3-0};
489 let Inst{5-4} = ShiftedRm{6-5};
490 let Inst{14-12} = ShiftedRm{11-9};
491 let Inst{7-6} = ShiftedRm{8-7};
494 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
495 string opc, string asm, list<dag> pattern>
496 : T2sI<oops, iops, itin, opc, asm, pattern> {
501 let Inst{3-0} = ShiftedRm{3-0};
502 let Inst{5-4} = ShiftedRm{6-5};
503 let Inst{14-12} = ShiftedRm{11-9};
504 let Inst{7-6} = ShiftedRm{8-7};
507 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
508 string opc, string asm, list<dag> pattern>
509 : T2I<oops, iops, itin, opc, asm, pattern> {
513 let Inst{19-16} = Rn;
514 let Inst{3-0} = ShiftedRm{3-0};
515 let Inst{5-4} = ShiftedRm{6-5};
516 let Inst{14-12} = ShiftedRm{11-9};
517 let Inst{7-6} = ShiftedRm{8-7};
520 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
521 string opc, string asm, list<dag> pattern>
522 : T2I<oops, iops, itin, opc, asm, pattern> {
530 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
531 string opc, string asm, list<dag> pattern>
532 : T2sI<oops, iops, itin, opc, asm, pattern> {
540 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
541 string opc, string asm, list<dag> pattern>
542 : T2I<oops, iops, itin, opc, asm, pattern> {
546 let Inst{19-16} = Rn;
551 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
552 string opc, string asm, list<dag> pattern>
553 : T2I<oops, iops, itin, opc, asm, pattern> {
559 let Inst{19-16} = Rn;
560 let Inst{26} = imm{11};
561 let Inst{14-12} = imm{10-8};
562 let Inst{7-0} = imm{7-0};
565 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
566 string opc, string asm, list<dag> pattern>
567 : T2sI<oops, iops, itin, opc, asm, pattern> {
573 let Inst{19-16} = Rn;
574 let Inst{26} = imm{11};
575 let Inst{14-12} = imm{10-8};
576 let Inst{7-0} = imm{7-0};
579 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
580 string opc, string asm, list<dag> pattern>
581 : T2I<oops, iops, itin, opc, asm, pattern> {
588 let Inst{14-12} = imm{4-2};
589 let Inst{7-6} = imm{1-0};
592 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
593 string opc, string asm, list<dag> pattern>
594 : T2sI<oops, iops, itin, opc, asm, pattern> {
601 let Inst{14-12} = imm{4-2};
602 let Inst{7-6} = imm{1-0};
605 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
606 string opc, string asm, list<dag> pattern>
607 : T2I<oops, iops, itin, opc, asm, pattern> {
613 let Inst{19-16} = Rn;
617 class T2ThreeRegNoP<dag oops, dag iops, InstrItinClass itin,
618 string asm, list<dag> pattern>
619 : T2XI<oops, iops, itin, asm, pattern> {
625 let Inst{19-16} = Rn;
629 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
630 string opc, string asm, list<dag> pattern>
631 : T2sI<oops, iops, itin, opc, asm, pattern> {
637 let Inst{19-16} = Rn;
641 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
642 string opc, string asm, list<dag> pattern>
643 : T2I<oops, iops, itin, opc, asm, pattern> {
649 let Inst{19-16} = Rn;
650 let Inst{3-0} = ShiftedRm{3-0};
651 let Inst{5-4} = ShiftedRm{6-5};
652 let Inst{14-12} = ShiftedRm{11-9};
653 let Inst{7-6} = ShiftedRm{8-7};
656 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
657 string opc, string asm, list<dag> pattern>
658 : T2sI<oops, iops, itin, opc, asm, pattern> {
664 let Inst{19-16} = Rn;
665 let Inst{3-0} = ShiftedRm{3-0};
666 let Inst{5-4} = ShiftedRm{6-5};
667 let Inst{14-12} = ShiftedRm{11-9};
668 let Inst{7-6} = ShiftedRm{8-7};
671 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
672 string opc, string asm, list<dag> pattern>
673 : T2I<oops, iops, itin, opc, asm, pattern> {
679 let Inst{19-16} = Rn;
680 let Inst{15-12} = Ra;
685 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
686 string opc, list<dag> pattern>
687 : T2I<(outs rGPR:$RdLo, rGPR:$RdHi), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
688 opc, "\t$RdLo, $RdHi, $Rn, $Rm", pattern>,
689 Sched<[WriteMUL64Lo, WriteMUL64Hi, ReadMUL, ReadMUL]> {
695 let Inst{31-23} = 0b111110111;
696 let Inst{22-20} = opc22_20;
697 let Inst{19-16} = Rn;
698 let Inst{15-12} = RdLo;
699 let Inst{11-8} = RdHi;
700 let Inst{7-4} = opc7_4;
703 class T2MlaLong<bits<3> opc22_20, bits<4> opc7_4, string opc>
704 : T2I<(outs rGPR:$RdLo, rGPR:$RdHi),
705 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi), IIC_iMAC64,
706 opc, "\t$RdLo, $RdHi, $Rn, $Rm", []>,
707 RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">,
708 Sched<[WriteMAC64Lo, WriteMAC64Hi, ReadMUL, ReadMUL, ReadMAC, ReadMAC]> {
714 let Inst{31-23} = 0b111110111;
715 let Inst{22-20} = opc22_20;
716 let Inst{19-16} = Rn;
717 let Inst{15-12} = RdLo;
718 let Inst{11-8} = RdHi;
719 let Inst{7-4} = opc7_4;
724 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
725 /// binary operation that produces a value. These are predicable and can be
726 /// changed to modify CPSR.
727 multiclass T2I_bin_irs<bits<4> opcod, string opc,
728 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
729 SDPatternOperator opnode, bit Commutable = 0,
732 def ri : T2sTwoRegImm<
733 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
734 opc, "\t$Rd, $Rn, $imm",
735 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
736 Sched<[WriteALU, ReadALU]> {
737 let Inst{31-27} = 0b11110;
739 let Inst{24-21} = opcod;
743 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
744 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
745 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
746 Sched<[WriteALU, ReadALU, ReadALU]> {
747 let isCommutable = Commutable;
748 let Inst{31-27} = 0b11101;
749 let Inst{26-25} = 0b01;
750 let Inst{24-21} = opcod;
752 // In most of these instructions, and most versions of the Arm
753 // architecture, bit 15 of this encoding is listed as (0) rather
754 // than 0, i.e. setting it to 1 is UNPREDICTABLE or a soft-fail
755 // rather than a hard failure. In v8.1-M, this requirement is
756 // upgraded to a hard one for ORR, so that the encodings with 1
757 // in this bit can be reused for other instructions (such as
758 // CSEL). Setting Unpredictable{15} = 1 here would reintroduce
759 // that encoding clash in the auto- generated MC decoder, so I
761 let Unpredictable{15} = !if(!eq(opcod, 0b0010), 0b0, 0b1);
762 let Inst{14-12} = 0b000; // imm3
763 let Inst{7-6} = 0b00; // imm2
764 let Inst{5-4} = 0b00; // type
767 def rs : T2sTwoRegShiftedReg<
768 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
769 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
770 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
771 Sched<[WriteALUsi, ReadALU]> {
772 let Inst{31-27} = 0b11101;
773 let Inst{26-25} = 0b01;
774 let Inst{24-21} = opcod;
776 let Unpredictable{15} = !if(!eq(opcod, 0b0010), 0b0, 0b1); // see above
778 // Assembly aliases for optional destination operand when it's the same
779 // as the source operand.
780 def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
781 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn,
782 t2_so_imm:$imm, pred:$p,
784 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
785 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn,
788 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
789 (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn,
790 t2_so_reg:$shift, pred:$p,
794 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
795 // the ".w" suffix to indicate that they are wide.
796 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
797 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
798 SDPatternOperator opnode, bit Commutable = 0> :
799 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w"> {
800 // Assembler aliases w/ the ".w" suffix.
801 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rd, $Rn, $imm"),
802 (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p,
804 // Assembler aliases w/o the ".w" suffix.
805 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
806 (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
808 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"),
809 (!cast<Instruction>(NAME#"rs") rGPR:$Rd, rGPR:$Rn, t2_so_reg:$shift,
810 pred:$p, cc_out:$s)>;
812 // and with the optional destination operand, too.
813 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rdn, $imm"),
814 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm,
815 pred:$p, cc_out:$s)>;
816 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
817 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
819 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"),
820 (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$shift,
821 pred:$p, cc_out:$s)>;
824 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
825 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
826 /// it is equivalent to the T2I_bin_irs counterpart.
827 multiclass T2I_rbin_irs<bits<4> opcod, string opc, SDNode opnode> {
829 def ri : T2sTwoRegImm<
830 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
831 opc, ".w\t$Rd, $Rn, $imm",
832 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]>,
833 Sched<[WriteALU, ReadALU]> {
834 let Inst{31-27} = 0b11110;
836 let Inst{24-21} = opcod;
840 def rr : T2sThreeReg<
841 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
842 opc, "\t$Rd, $Rn, $Rm",
843 [/* For disassembly only; pattern left blank */]>,
844 Sched<[WriteALU, ReadALU, ReadALU]> {
845 let Inst{31-27} = 0b11101;
846 let Inst{26-25} = 0b01;
847 let Inst{24-21} = opcod;
848 let Inst{14-12} = 0b000; // imm3
849 let Inst{7-6} = 0b00; // imm2
850 let Inst{5-4} = 0b00; // type
853 def rs : T2sTwoRegShiftedReg<
854 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
855 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
856 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]>,
857 Sched<[WriteALUsi, ReadALU]> {
858 let Inst{31-27} = 0b11101;
859 let Inst{26-25} = 0b01;
860 let Inst{24-21} = opcod;
864 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
865 /// instruction modifies the CPSR register.
867 /// These opcodes will be converted to the real non-S opcodes by
868 /// AdjustInstrPostInstrSelection after giving then an optional CPSR operand.
869 let hasPostISelHook = 1, Defs = [CPSR] in {
870 multiclass T2I_bin_s_irs<InstrItinClass iii, InstrItinClass iir,
871 InstrItinClass iis, SDNode opnode,
872 bit Commutable = 0> {
874 def ri : t2PseudoInst<(outs rGPR:$Rd),
875 (ins GPRnopc:$Rn, t2_so_imm:$imm, pred:$p),
877 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
879 Sched<[WriteALU, ReadALU]>;
881 def rr : t2PseudoInst<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm, pred:$p),
883 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
885 Sched<[WriteALU, ReadALU, ReadALU]> {
886 let isCommutable = Commutable;
889 def rs : t2PseudoInst<(outs rGPR:$Rd),
890 (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
892 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
893 t2_so_reg:$ShiftedRm))]>,
894 Sched<[WriteALUsi, ReadALUsr]>;
898 /// T2I_rbin_s_is - Same as T2I_bin_s_irs, except selection DAG
899 /// operands are reversed.
900 let hasPostISelHook = 1, Defs = [CPSR] in {
901 multiclass T2I_rbin_s_is<SDNode opnode> {
903 def ri : t2PseudoInst<(outs rGPR:$Rd),
904 (ins rGPR:$Rn, t2_so_imm:$imm, pred:$p),
906 [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm,
908 Sched<[WriteALU, ReadALU]>;
910 def rs : t2PseudoInst<(outs rGPR:$Rd),
911 (ins rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
913 [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm,
915 Sched<[WriteALUsi, ReadALU]>;
919 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
920 /// patterns for a binary operation that produces a value.
921 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, SDNode opnode,
922 bit Commutable = 0> {
924 // The register-immediate version is re-materializable. This is useful
925 // in particular for taking the address of a local.
926 let isReMaterializable = 1 in {
927 def spImm : T2sTwoRegImm<
928 (outs GPRsp:$Rd), (ins GPRsp:$Rn, t2_so_imm:$imm), IIC_iALUi,
929 opc, ".w\t$Rd, $Rn, $imm",
931 Sched<[WriteALU, ReadALU]> {
935 let Inst{31-27} = 0b11110;
936 let Inst{25-24} = 0b01;
937 let Inst{23-21} = op23_21;
940 let DecoderMethod = "DecodeT2AddSubSPImm";
943 def ri : T2sTwoRegImm<
944 (outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
945 opc, ".w\t$Rd, $Rn, $imm",
946 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]>,
947 Sched<[WriteALU, ReadALU]> {
948 let Inst{31-27} = 0b11110;
951 let Inst{23-21} = op23_21;
957 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
958 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
959 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]>,
960 Sched<[WriteALU, ReadALU]> {
964 let Inst{31-27} = 0b11110;
965 let Inst{26} = imm{11};
966 let Inst{25-24} = 0b10;
967 let Inst{23-21} = op23_21;
968 let Inst{20} = 0; // The S bit.
969 let Inst{19-16} = Rn;
971 let Inst{14-12} = imm{10-8};
973 let Inst{7-0} = imm{7-0};
976 (outs GPRsp:$Rd), (ins GPRsp:$Rn, imm0_4095:$imm), IIC_iALUi,
977 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
979 Sched<[WriteALU, ReadALU]> {
983 let Inst{31-27} = 0b11110;
984 let Inst{26} = imm{11};
985 let Inst{25-24} = 0b10;
986 let Inst{23-21} = op23_21;
987 let Inst{20} = 0; // The S bit.
988 let Inst{19-16} = Rn;
990 let Inst{14-12} = imm{10-8};
992 let Inst{7-0} = imm{7-0};
993 let DecoderMethod = "DecodeT2AddSubSPImm";
996 def rr : T2sThreeReg<(outs GPRnopc:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm),
997 IIC_iALUr, opc, ".w\t$Rd, $Rn, $Rm",
998 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]>,
999 Sched<[WriteALU, ReadALU, ReadALU]> {
1000 let isCommutable = Commutable;
1001 let Inst{31-27} = 0b11101;
1002 let Inst{26-25} = 0b01;
1004 let Inst{23-21} = op23_21;
1005 let Inst{14-12} = 0b000; // imm3
1006 let Inst{7-6} = 0b00; // imm2
1007 let Inst{5-4} = 0b00; // type
1010 def rs : T2sTwoRegShiftedReg<
1011 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
1012 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
1013 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]>,
1014 Sched<[WriteALUsi, ReadALU]> {
1015 let Inst{31-27} = 0b11101;
1016 let Inst{26-25} = 0b01;
1018 let Inst{23-21} = op23_21;
1022 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
1023 /// for a binary operation that produces a value and use the carry
1024 /// bit. It's not predicable.
1025 let Defs = [CPSR], Uses = [CPSR] in {
1026 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, SDNode opnode,
1027 bit Commutable = 0> {
1029 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
1030 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
1031 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_imm:$imm, CPSR))]>,
1032 Requires<[IsThumb2]>, Sched<[WriteALU, ReadALU]> {
1033 let Inst{31-27} = 0b11110;
1035 let Inst{24-21} = opcod;
1039 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
1040 opc, ".w\t$Rd, $Rn, $Rm",
1041 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, rGPR:$Rm, CPSR))]>,
1042 Requires<[IsThumb2]>, Sched<[WriteALU, ReadALU, ReadALU]> {
1043 let isCommutable = Commutable;
1044 let Inst{31-27} = 0b11101;
1045 let Inst{26-25} = 0b01;
1046 let Inst{24-21} = opcod;
1047 let Inst{14-12} = 0b000; // imm3
1048 let Inst{7-6} = 0b00; // imm2
1049 let Inst{5-4} = 0b00; // type
1052 def rs : T2sTwoRegShiftedReg<
1053 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
1054 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
1055 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm, CPSR))]>,
1056 Requires<[IsThumb2]>, Sched<[WriteALUsi, ReadALU]> {
1057 let Inst{31-27} = 0b11101;
1058 let Inst{26-25} = 0b01;
1059 let Inst{24-21} = opcod;
1064 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
1065 // rotate operation that produces a value.
1066 multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, SDNode opnode> {
1068 def ri : T2sTwoRegShiftImm<
1069 (outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi,
1070 opc, ".w\t$Rd, $Rm, $imm",
1071 [(set rGPR:$Rd, (opnode rGPR:$Rm, (i32 ty:$imm)))]>,
1073 let Inst{31-27} = 0b11101;
1074 let Inst{26-21} = 0b010010;
1075 let Inst{19-16} = 0b1111; // Rn
1077 let Inst{5-4} = opcod;
1080 def rr : T2sThreeReg<
1081 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
1082 opc, ".w\t$Rd, $Rn, $Rm",
1083 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
1085 let Inst{31-27} = 0b11111;
1086 let Inst{26-23} = 0b0100;
1087 let Inst{22-21} = opcod;
1088 let Inst{15-12} = 0b1111;
1089 let Inst{7-4} = 0b0000;
1092 // Optional destination register
1093 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"),
1094 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
1096 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"),
1097 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
1100 // Assembler aliases w/o the ".w" suffix.
1101 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"),
1102 (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, ty:$imm, pred:$p,
1104 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
1105 (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
1108 // and with the optional destination operand, too.
1109 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"),
1110 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
1112 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
1113 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
1117 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
1118 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
1119 /// a explicit result, only implicitly set CPSR.
1120 multiclass T2I_cmp_irs<bits<4> opcod, string opc, RegisterClass LHSGPR,
1121 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
1122 SDPatternOperator opnode> {
1123 let isCompare = 1, Defs = [CPSR] in {
1125 def ri : T2OneRegCmpImm<
1126 (outs), (ins LHSGPR:$Rn, t2_so_imm:$imm), iii,
1127 opc, ".w\t$Rn, $imm",
1128 [(opnode LHSGPR:$Rn, t2_so_imm:$imm)]>, Sched<[WriteCMP]> {
1129 let Inst{31-27} = 0b11110;
1131 let Inst{24-21} = opcod;
1132 let Inst{20} = 1; // The S bit.
1134 let Inst{11-8} = 0b1111; // Rd
1137 def rr : T2TwoRegCmp<
1138 (outs), (ins LHSGPR:$Rn, rGPR:$Rm), iir,
1139 opc, ".w\t$Rn, $Rm",
1140 [(opnode LHSGPR:$Rn, rGPR:$Rm)]>, Sched<[WriteCMP]> {
1141 let Inst{31-27} = 0b11101;
1142 let Inst{26-25} = 0b01;
1143 let Inst{24-21} = opcod;
1144 let Inst{20} = 1; // The S bit.
1145 let Inst{14-12} = 0b000; // imm3
1146 let Inst{11-8} = 0b1111; // Rd
1147 let Inst{7-6} = 0b00; // imm2
1148 let Inst{5-4} = 0b00; // type
1151 def rs : T2OneRegCmpShiftedReg<
1152 (outs), (ins LHSGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
1153 opc, ".w\t$Rn, $ShiftedRm",
1154 [(opnode LHSGPR:$Rn, t2_so_reg:$ShiftedRm)]>,
1155 Sched<[WriteCMPsi]> {
1156 let Inst{31-27} = 0b11101;
1157 let Inst{26-25} = 0b01;
1158 let Inst{24-21} = opcod;
1159 let Inst{20} = 1; // The S bit.
1160 let Inst{11-8} = 0b1111; // Rd
1164 // Assembler aliases w/o the ".w" suffix.
1165 // No alias here for 'rr' version as not all instantiations of this
1166 // multiclass want one (CMP in particular, does not).
1167 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"),
1168 (!cast<Instruction>(NAME#"ri") LHSGPR:$Rn, t2_so_imm:$imm, pred:$p)>;
1169 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"),
1170 (!cast<Instruction>(NAME#"rs") LHSGPR:$Rn, t2_so_reg:$shift, pred:$p)>;
1173 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
1174 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
1175 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
1177 def i12 : T2Ii12<(outs target:$Rt), (ins t2addrmode_imm12:$addr), iii,
1178 opc, ".w\t$Rt, $addr",
1179 [(set target:$Rt, (opnode t2addrmode_imm12:$addr))]>,
1183 let Inst{31-25} = 0b1111100;
1184 let Inst{24} = signed;
1186 let Inst{22-21} = opcod;
1187 let Inst{20} = 1; // load
1188 let Inst{19-16} = addr{16-13}; // Rn
1189 let Inst{15-12} = Rt;
1190 let Inst{11-0} = addr{11-0}; // imm
1192 let DecoderMethod = "DecodeT2LoadImm12";
1194 def i8 : T2Ii8 <(outs target:$Rt), (ins t2addrmode_negimm8:$addr), iii,
1195 opc, "\t$Rt, $addr",
1196 [(set target:$Rt, (opnode t2addrmode_negimm8:$addr))]>,
1200 let Inst{31-27} = 0b11111;
1201 let Inst{26-25} = 0b00;
1202 let Inst{24} = signed;
1204 let Inst{22-21} = opcod;
1205 let Inst{20} = 1; // load
1206 let Inst{19-16} = addr{12-9}; // Rn
1207 let Inst{15-12} = Rt;
1209 // Offset: index==TRUE, wback==FALSE
1210 let Inst{10} = 1; // The P bit.
1211 let Inst{9} = addr{8}; // U
1212 let Inst{8} = 0; // The W bit.
1213 let Inst{7-0} = addr{7-0}; // imm
1215 let DecoderMethod = "DecodeT2LoadImm8";
1217 def s : T2Iso <(outs target:$Rt), (ins t2addrmode_so_reg:$addr), iis,
1218 opc, ".w\t$Rt, $addr",
1219 [(set target:$Rt, (opnode t2addrmode_so_reg:$addr))]>,
1221 let Inst{31-27} = 0b11111;
1222 let Inst{26-25} = 0b00;
1223 let Inst{24} = signed;
1225 let Inst{22-21} = opcod;
1226 let Inst{20} = 1; // load
1227 let Inst{11-6} = 0b000000;
1230 let Inst{15-12} = Rt;
1233 let Inst{19-16} = addr{9-6}; // Rn
1234 let Inst{3-0} = addr{5-2}; // Rm
1235 let Inst{5-4} = addr{1-0}; // imm
1237 let DecoderMethod = "DecodeT2LoadShift";
1240 // pci variant is very similar to i12, but supports negative offsets
1242 def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
1243 opc, ".w\t$Rt, $addr",
1244 [(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]>,
1246 let isReMaterializable = 1;
1247 let Inst{31-27} = 0b11111;
1248 let Inst{26-25} = 0b00;
1249 let Inst{24} = signed;
1250 let Inst{22-21} = opcod;
1251 let Inst{20} = 1; // load
1252 let Inst{19-16} = 0b1111; // Rn
1255 let Inst{15-12} = Rt{3-0};
1258 let Inst{23} = addr{12}; // add = (U == '1')
1259 let Inst{11-0} = addr{11-0};
1261 let DecoderMethod = "DecodeT2LoadLabel";
1265 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
1266 multiclass T2I_st<bits<2> opcod, string opc,
1267 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
1269 def i12 : T2Ii12<(outs), (ins target:$Rt, t2addrmode_imm12:$addr), iii,
1270 opc, ".w\t$Rt, $addr",
1271 [(opnode target:$Rt, t2addrmode_imm12:$addr)]>,
1273 let Inst{31-27} = 0b11111;
1274 let Inst{26-23} = 0b0001;
1275 let Inst{22-21} = opcod;
1276 let Inst{20} = 0; // !load
1279 let Inst{15-12} = Rt;
1282 let addr{12} = 1; // add = TRUE
1283 let Inst{19-16} = addr{16-13}; // Rn
1284 let Inst{23} = addr{12}; // U
1285 let Inst{11-0} = addr{11-0}; // imm
1287 def i8 : T2Ii8 <(outs), (ins target:$Rt, t2addrmode_negimm8:$addr), iii,
1288 opc, "\t$Rt, $addr",
1289 [(opnode target:$Rt, t2addrmode_negimm8:$addr)]>,
1291 let Inst{31-27} = 0b11111;
1292 let Inst{26-23} = 0b0000;
1293 let Inst{22-21} = opcod;
1294 let Inst{20} = 0; // !load
1296 // Offset: index==TRUE, wback==FALSE
1297 let Inst{10} = 1; // The P bit.
1298 let Inst{8} = 0; // The W bit.
1301 let Inst{15-12} = Rt;
1304 let Inst{19-16} = addr{12-9}; // Rn
1305 let Inst{9} = addr{8}; // U
1306 let Inst{7-0} = addr{7-0}; // imm
1308 def s : T2Iso <(outs), (ins target:$Rt, t2addrmode_so_reg:$addr), iis,
1309 opc, ".w\t$Rt, $addr",
1310 [(opnode target:$Rt, t2addrmode_so_reg:$addr)]>,
1312 let Inst{31-27} = 0b11111;
1313 let Inst{26-23} = 0b0000;
1314 let Inst{22-21} = opcod;
1315 let Inst{20} = 0; // !load
1316 let Inst{11-6} = 0b000000;
1319 let Inst{15-12} = Rt;
1322 let Inst{19-16} = addr{9-6}; // Rn
1323 let Inst{3-0} = addr{5-2}; // Rm
1324 let Inst{5-4} = addr{1-0}; // imm
1328 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
1329 /// register and one whose operand is a register rotated by 8/16/24.
1330 class T2I_ext_rrot_base<bits<3> opcod, dag iops, dag oops,
1331 string opc, string oprs,
1333 : T2TwoReg<iops, oops, IIC_iEXTr, opc, oprs, pattern> {
1335 let Inst{31-27} = 0b11111;
1336 let Inst{26-23} = 0b0100;
1337 let Inst{22-20} = opcod;
1338 let Inst{19-16} = 0b1111; // Rn
1339 let Inst{15-12} = 0b1111;
1341 let Inst{5-4} = rot; // rotate
1344 class T2I_ext_rrot<bits<3> opcod, string opc>
1345 : T2I_ext_rrot_base<opcod,
1347 (ins rGPR:$Rm, rot_imm:$rot),
1348 opc, ".w\t$Rd, $Rm$rot", []>,
1349 Requires<[IsThumb2]>,
1350 Sched<[WriteALU, ReadALU]>;
1352 // UXTB16, SXTB16 - Requires HasDSP, does not need the .w qualifier.
1353 class T2I_ext_rrot_xtb16<bits<3> opcod, string opc>
1354 : T2I_ext_rrot_base<opcod,
1356 (ins rGPR:$Rm, rot_imm:$rot),
1357 opc, "\t$Rd, $Rm$rot", []>,
1358 Requires<[HasDSP, IsThumb2]>,
1359 Sched<[WriteALU, ReadALU]>;
1361 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1362 /// register and one whose operand is a register rotated by 8/16/24.
1363 class T2I_exta_rrot<bits<3> opcod, string opc>
1364 : T2ThreeReg<(outs rGPR:$Rd),
1365 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1366 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []>,
1367 Requires<[HasDSP, IsThumb2]>,
1368 Sched<[WriteALU, ReadALU]> {
1370 let Inst{31-27} = 0b11111;
1371 let Inst{26-23} = 0b0100;
1372 let Inst{22-20} = opcod;
1373 let Inst{15-12} = 0b1111;
1375 let Inst{5-4} = rot;
1378 //===----------------------------------------------------------------------===//
1380 //===----------------------------------------------------------------------===//
1382 //===----------------------------------------------------------------------===//
1383 // Miscellaneous Instructions.
1386 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1387 string asm, list<dag> pattern>
1388 : T2XI<oops, iops, itin, asm, pattern> {
1392 let Inst{11-8} = Rd;
1393 let Inst{26} = label{11};
1394 let Inst{14-12} = label{10-8};
1395 let Inst{7-0} = label{7-0};
1398 // LEApcrel - Load a pc-relative address into a register without offending the
1400 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1401 (ins t2adrlabel:$addr, pred:$p),
1402 IIC_iALUi, "adr{$p}.w\t$Rd, $addr", []>,
1403 Sched<[WriteALU, ReadALU]> {
1404 let Inst{31-27} = 0b11110;
1405 let Inst{25-24} = 0b10;
1406 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1409 let Inst{19-16} = 0b1111; // Rn
1414 let Inst{11-8} = Rd;
1415 let Inst{23} = addr{12};
1416 let Inst{21} = addr{12};
1417 let Inst{26} = addr{11};
1418 let Inst{14-12} = addr{10-8};
1419 let Inst{7-0} = addr{7-0};
1421 let DecoderMethod = "DecodeT2Adr";
1424 let hasSideEffects = 0, isReMaterializable = 1 in
1425 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1426 4, IIC_iALUi, []>, Sched<[WriteALU, ReadALU]>;
1427 let hasSideEffects = 1 in
1428 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1429 (ins i32imm:$label, pred:$p),
1431 []>, Sched<[WriteALU, ReadALU]>;
1434 //===----------------------------------------------------------------------===//
1435 // Load / store Instructions.
1439 let canFoldAsLoad = 1, isReMaterializable = 1 in
1440 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si, GPR, load>;
1442 // Loads with zero extension
1443 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1444 GPRnopc, zextloadi16>;
1445 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1446 GPRnopc, zextloadi8>;
1448 // Loads with sign extension
1449 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1450 GPRnopc, sextloadi16>;
1451 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1452 GPRnopc, sextloadi8>;
1454 let mayLoad = 1, hasSideEffects = 0, hasExtraDefRegAllocReq = 1 in {
1456 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1457 (ins t2addrmode_imm8s4:$addr),
1458 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", "",
1459 [(set rGPR:$Rt, rGPR:$Rt2, (ARMldrd t2addrmode_imm8s4:$addr))]>,
1461 } // mayLoad = 1, hasSideEffects = 0, hasExtraDefRegAllocReq = 1
1463 // zextload i1 -> zextload i8
1464 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1465 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1466 def : T2Pat<(zextloadi1 t2addrmode_negimm8:$addr),
1467 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1468 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1469 (t2LDRBs t2addrmode_so_reg:$addr)>;
1470 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1471 (t2LDRBpci tconstpool:$addr)>;
1473 // extload -> zextload
1474 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1476 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1477 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1478 def : T2Pat<(extloadi1 t2addrmode_negimm8:$addr),
1479 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1480 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1481 (t2LDRBs t2addrmode_so_reg:$addr)>;
1482 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1483 (t2LDRBpci tconstpool:$addr)>;
1485 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1486 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1487 def : T2Pat<(extloadi8 t2addrmode_negimm8:$addr),
1488 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1489 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1490 (t2LDRBs t2addrmode_so_reg:$addr)>;
1491 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1492 (t2LDRBpci tconstpool:$addr)>;
1494 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1495 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1496 def : T2Pat<(extloadi16 t2addrmode_negimm8:$addr),
1497 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
1498 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1499 (t2LDRHs t2addrmode_so_reg:$addr)>;
1500 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1501 (t2LDRHpci tconstpool:$addr)>;
1503 // FIXME: The destination register of the loads and stores can't be PC, but
1504 // can be SP. We need another regclass (similar to rGPR) to represent
1505 // that. Not a pressing issue since these are selected manually,
1510 let mayLoad = 1, hasSideEffects = 0 in {
1511 def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1512 (ins t2addrmode_imm8_pre:$addr),
1513 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1514 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn_wb", []>,
1517 def t2LDR_POST : T2Ipostldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1518 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1519 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1520 "ldr", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>,
1523 def t2LDRB_PRE : T2Ipreldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1524 (ins t2addrmode_imm8_pre:$addr),
1525 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1526 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn_wb", []>,
1529 def t2LDRB_POST : T2Ipostldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1530 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1531 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1532 "ldrb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>,
1535 def t2LDRH_PRE : T2Ipreldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1536 (ins t2addrmode_imm8_pre:$addr),
1537 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1538 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn_wb", []>,
1541 def t2LDRH_POST : T2Ipostldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1542 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1543 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1544 "ldrh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>,
1547 def t2LDRSB_PRE : T2Ipreldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1548 (ins t2addrmode_imm8_pre:$addr),
1549 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1550 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1551 []>, Sched<[WriteLd]>;
1553 def t2LDRSB_POST : T2Ipostldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1554 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1555 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1556 "ldrsb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>,
1559 def t2LDRSH_PRE : T2Ipreldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1560 (ins t2addrmode_imm8_pre:$addr),
1561 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1562 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1563 []>, Sched<[WriteLd]>;
1565 def t2LDRSH_POST : T2Ipostldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1566 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1567 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1568 "ldrsh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>,
1570 } // mayLoad = 1, hasSideEffects = 0
1572 // F5.1.72 LDR (immediate) T4
1573 // .w suffixes; Constraints can't be used on t2InstAlias to describe
1574 // "$Rn = $Rn_wb" on POST or "$addr.base = $Rn_wb" on PRE.
1575 def t2LDR_PRE_imm : t2AsmPseudo<"ldr${p}.w $Rt, $addr!",
1576 (ins GPR:$Rt, t2addrmode_imm8_pre:$addr, pred:$p)>;
1577 def t2LDR_POST_imm : t2AsmPseudo<"ldr${p}.w $Rt, $Rn, $imm",
1578 (ins GPR:$Rt, addr_offset_none:$Rn, t2am_imm8_offset:$imm, pred:$p)>;
1580 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110).
1581 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1582 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1583 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_posimm8:$addr), ii, opc,
1584 "\t$Rt, $addr", []>, Sched<[WriteLd]> {
1587 let Inst{31-27} = 0b11111;
1588 let Inst{26-25} = 0b00;
1589 let Inst{24} = signed;
1591 let Inst{22-21} = type;
1592 let Inst{20} = 1; // load
1593 let Inst{19-16} = addr{12-9};
1594 let Inst{15-12} = Rt;
1596 let Inst{10-8} = 0b110; // PUW.
1597 let Inst{7-0} = addr{7-0};
1599 let DecoderMethod = "DecodeT2LoadT";
1602 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1603 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1604 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1605 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1606 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1608 class T2Ildacq<bits<4> bits23_20, bits<2> bit54, dag oops, dag iops,
1609 string opc, string asm, list<dag> pattern>
1610 : Thumb2I<oops, iops, AddrModeNone, 4, NoItinerary,
1611 opc, asm, "", pattern>, Requires<[IsThumb, HasAcquireRelease]> {
1615 let Inst{31-27} = 0b11101;
1616 let Inst{26-24} = 0b000;
1617 let Inst{23-20} = bits23_20;
1618 let Inst{11-6} = 0b111110;
1619 let Inst{5-4} = bit54;
1620 let Inst{3-0} = 0b1111;
1622 // Encode instruction operands
1623 let Inst{19-16} = addr;
1624 let Inst{15-12} = Rt;
1627 def t2LDA : T2Ildacq<0b1101, 0b10, (outs rGPR:$Rt),
1628 (ins addr_offset_none:$addr), "lda", "\t$Rt, $addr", []>,
1630 def t2LDAB : T2Ildacq<0b1101, 0b00, (outs rGPR:$Rt),
1631 (ins addr_offset_none:$addr), "ldab", "\t$Rt, $addr", []>,
1633 def t2LDAH : T2Ildacq<0b1101, 0b01, (outs rGPR:$Rt),
1634 (ins addr_offset_none:$addr), "ldah", "\t$Rt, $addr", []>,
1638 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si, GPR, store>;
1639 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1640 rGPR, truncstorei8>;
1641 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1642 rGPR, truncstorei16>;
1645 let mayStore = 1, hasSideEffects = 0, hasExtraSrcRegAllocReq = 1 in
1646 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1647 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4:$addr),
1648 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", "",
1649 [(ARMstrd rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4:$addr)]>,
1654 let mayStore = 1, hasSideEffects = 0 in {
1655 def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
1656 (ins GPRnopc:$Rt, t2addrmode_imm8_pre:$addr),
1657 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1658 "str", "\t$Rt, $addr!",
1659 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []>,
1662 def t2STRH_PRE : T2Ipreldst<0, 0b01, 0, 1, (outs GPRnopc:$Rn_wb),
1663 (ins rGPR:$Rt, t2addrmode_imm8_pre:$addr),
1664 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1665 "strh", "\t$Rt, $addr!",
1666 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []>,
1669 def t2STRB_PRE : T2Ipreldst<0, 0b00, 0, 1, (outs GPRnopc:$Rn_wb),
1670 (ins rGPR:$Rt, t2addrmode_imm8_pre:$addr),
1671 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1672 "strb", "\t$Rt, $addr!",
1673 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []>,
1675 } // mayStore = 1, hasSideEffects = 0
1677 def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
1678 (ins GPRnopc:$Rt, addr_offset_none:$Rn,
1679 t2am_imm8_offset:$offset),
1680 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1681 "str", "\t$Rt, $Rn$offset",
1682 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1683 [(set GPRnopc:$Rn_wb,
1684 (post_store GPRnopc:$Rt, addr_offset_none:$Rn,
1685 t2am_imm8_offset:$offset))]>,
1688 def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb),
1689 (ins rGPR:$Rt, addr_offset_none:$Rn,
1690 t2am_imm8_offset:$offset),
1691 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1692 "strh", "\t$Rt, $Rn$offset",
1693 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1694 [(set GPRnopc:$Rn_wb,
1695 (post_truncsti16 rGPR:$Rt, addr_offset_none:$Rn,
1696 t2am_imm8_offset:$offset))]>,
1699 def t2STRB_POST : T2Ipostldst<0, 0b00, 0, 0, (outs GPRnopc:$Rn_wb),
1700 (ins rGPR:$Rt, addr_offset_none:$Rn,
1701 t2am_imm8_offset:$offset),
1702 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1703 "strb", "\t$Rt, $Rn$offset",
1704 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1705 [(set GPRnopc:$Rn_wb,
1706 (post_truncsti8 rGPR:$Rt, addr_offset_none:$Rn,
1707 t2am_imm8_offset:$offset))]>,
1710 // Pseudo-instructions for pattern matching the pre-indexed stores. We can't
1711 // put the patterns on the instruction definitions directly as ISel wants
1712 // the address base and offset to be separate operands, not a single
1713 // complex operand like we represent the instructions themselves. The
1714 // pseudos map between the two.
1715 let usesCustomInserter = 1,
1716 Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in {
1717 def t2STR_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1718 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1720 [(set GPRnopc:$Rn_wb,
1721 (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>,
1723 def t2STRB_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1724 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1726 [(set GPRnopc:$Rn_wb,
1727 (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>,
1729 def t2STRH_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1730 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1732 [(set GPRnopc:$Rn_wb,
1733 (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>,
1737 // F5.1.229 STR (immediate) T4
1738 // .w suffixes; Constraints can't be used on t2InstAlias to describe
1739 // "$Rn = $Rn_wb,@earlyclobber $Rn_wb" on POST or
1740 // "$addr.base = $Rn_wb,@earlyclobber $Rn_wb" on PRE.
1741 def t2STR_PRE_imm : t2AsmPseudo<"str${p}.w $Rt, $addr!",
1742 (ins GPR:$Rt, t2addrmode_imm8_pre:$addr, pred:$p)>;
1743 def t2STR_POST_imm : t2AsmPseudo<"str${p}.w $Rt, $Rn, $imm",
1744 (ins GPR:$Rt, addr_offset_none:$Rn, t2am_imm8_offset:$imm, pred:$p)>;
1746 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1748 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1749 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1750 : T2Ii8<(outs), (ins rGPR:$Rt, t2addrmode_imm8:$addr), ii, opc,
1751 "\t$Rt, $addr", []>, Sched<[WriteST]> {
1752 let Inst{31-27} = 0b11111;
1753 let Inst{26-25} = 0b00;
1754 let Inst{24} = 0; // not signed
1756 let Inst{22-21} = type;
1757 let Inst{20} = 0; // store
1759 let Inst{10-8} = 0b110; // PUW
1763 let Inst{15-12} = Rt;
1764 let Inst{19-16} = addr{12-9};
1765 let Inst{7-0} = addr{7-0};
1768 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1769 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1770 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1772 // ldrd / strd pre / post variants
1774 let mayLoad = 1, hasSideEffects = 0 in
1775 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1776 (ins t2addrmode_imm8s4_pre:$addr), IIC_iLoad_d_ru,
1777 "ldrd", "\t$Rt, $Rt2, $addr!", "$addr.base = $wb", []>,
1779 let DecoderMethod = "DecodeT2LDRDPreInstruction";
1782 let mayLoad = 1, hasSideEffects = 0 in
1783 def t2LDRD_POST : T2Ii8s4post<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1784 (ins addr_offset_none:$addr, t2am_imm8s4_offset:$imm),
1785 IIC_iLoad_d_ru, "ldrd", "\t$Rt, $Rt2, $addr$imm",
1786 "$addr.base = $wb", []>, Sched<[WriteLd]>;
1788 let mayStore = 1, hasSideEffects = 0 in
1789 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs GPR:$wb),
1790 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4_pre:$addr),
1791 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr!",
1792 "$addr.base = $wb", []>, Sched<[WriteST]> {
1793 let DecoderMethod = "DecodeT2STRDPreInstruction";
1796 let mayStore = 1, hasSideEffects = 0 in
1797 def t2STRD_POST : T2Ii8s4post<0, 1, 0, (outs GPR:$wb),
1798 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr,
1799 t2am_imm8s4_offset:$imm),
1800 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr$imm",
1801 "$addr.base = $wb", []>, Sched<[WriteST]>;
1803 class T2Istrrel<bits<2> bit54, dag oops, dag iops,
1804 string opc, string asm, list<dag> pattern>
1805 : Thumb2I<oops, iops, AddrModeNone, 4, NoItinerary, opc,
1806 asm, "", pattern>, Requires<[IsThumb, HasAcquireRelease]>,
1811 let Inst{31-27} = 0b11101;
1812 let Inst{26-20} = 0b0001100;
1813 let Inst{11-6} = 0b111110;
1814 let Inst{5-4} = bit54;
1815 let Inst{3-0} = 0b1111;
1817 // Encode instruction operands
1818 let Inst{19-16} = addr;
1819 let Inst{15-12} = Rt;
1822 def t2STL : T2Istrrel<0b10, (outs), (ins rGPR:$Rt, addr_offset_none:$addr),
1823 "stl", "\t$Rt, $addr", []>;
1824 def t2STLB : T2Istrrel<0b00, (outs), (ins rGPR:$Rt, addr_offset_none:$addr),
1825 "stlb", "\t$Rt, $addr", []>;
1826 def t2STLH : T2Istrrel<0b01, (outs), (ins rGPR:$Rt, addr_offset_none:$addr),
1827 "stlh", "\t$Rt, $addr", []>;
1829 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1830 // data/instruction access.
1831 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1832 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1833 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1835 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1837 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]>,
1838 Sched<[WritePreLd]> {
1839 let Inst{31-25} = 0b1111100;
1840 let Inst{24} = instr;
1843 let Inst{21} = write;
1845 let Inst{15-12} = 0b1111;
1848 let Inst{19-16} = addr{16-13}; // Rn
1849 let Inst{11-0} = addr{11-0}; // imm12
1851 let DecoderMethod = "DecodeT2LoadImm12";
1854 def i8 : T2Ii8<(outs), (ins t2addrmode_negimm8:$addr), IIC_Preload, opc,
1856 [(ARMPreload t2addrmode_negimm8:$addr, (i32 write), (i32 instr))]>,
1857 Sched<[WritePreLd]> {
1858 let Inst{31-25} = 0b1111100;
1859 let Inst{24} = instr;
1860 let Inst{23} = 0; // U = 0
1862 let Inst{21} = write;
1864 let Inst{15-12} = 0b1111;
1865 let Inst{11-8} = 0b1100;
1868 let Inst{19-16} = addr{12-9}; // Rn
1869 let Inst{7-0} = addr{7-0}; // imm8
1871 let DecoderMethod = "DecodeT2LoadImm8";
1874 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1876 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]>,
1877 Sched<[WritePreLd]> {
1878 let Inst{31-25} = 0b1111100;
1879 let Inst{24} = instr;
1880 let Inst{23} = 0; // add = TRUE for T1
1882 let Inst{21} = write;
1884 let Inst{15-12} = 0b1111;
1885 let Inst{11-6} = 0b000000;
1888 let Inst{19-16} = addr{9-6}; // Rn
1889 let Inst{3-0} = addr{5-2}; // Rm
1890 let Inst{5-4} = addr{1-0}; // imm2
1892 let DecoderMethod = "DecodeT2LoadShift";
1896 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1897 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1898 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1900 // PLD/PLDW/PLI aliases w/ the optional .w suffix
1901 def : t2InstAlias<"pld${p}.w\t$addr",
1902 (t2PLDi12 t2addrmode_imm12:$addr, pred:$p)>;
1903 def : t2InstAlias<"pld${p}.w\t$addr",
1904 (t2PLDi8 t2addrmode_negimm8:$addr, pred:$p)>;
1905 def : t2InstAlias<"pld${p}.w\t$addr",
1906 (t2PLDs t2addrmode_so_reg:$addr, pred:$p)>;
1908 def : InstAlias<"pldw${p}.w\t$addr",
1909 (t2PLDWi12 t2addrmode_imm12:$addr, pred:$p), 0>,
1910 Requires<[IsThumb2,HasV7,HasMP]>;
1911 def : InstAlias<"pldw${p}.w\t$addr",
1912 (t2PLDWi8 t2addrmode_negimm8:$addr, pred:$p), 0>,
1913 Requires<[IsThumb2,HasV7,HasMP]>;
1914 def : InstAlias<"pldw${p}.w\t$addr",
1915 (t2PLDWs t2addrmode_so_reg:$addr, pred:$p), 0>,
1916 Requires<[IsThumb2,HasV7,HasMP]>;
1918 def : InstAlias<"pli${p}.w\t$addr",
1919 (t2PLIi12 t2addrmode_imm12:$addr, pred:$p), 0>,
1920 Requires<[IsThumb2,HasV7]>;
1921 def : InstAlias<"pli${p}.w\t$addr",
1922 (t2PLIi8 t2addrmode_negimm8:$addr, pred:$p), 0>,
1923 Requires<[IsThumb2,HasV7]>;
1924 def : InstAlias<"pli${p}.w\t$addr",
1925 (t2PLIs t2addrmode_so_reg:$addr, pred:$p), 0>,
1926 Requires<[IsThumb2,HasV7]>;
1928 // pci variant is very similar to i12, but supports negative offsets
1929 // from the PC. Only PLD and PLI have pci variants (not PLDW)
1930 class T2Iplpci<bits<1> inst, string opc> : T2Ipc<(outs), (ins t2ldrlabel:$addr),
1931 IIC_Preload, opc, "\t$addr",
1932 [(ARMPreload (ARMWrapper tconstpool:$addr),
1933 (i32 0), (i32 inst))]>, Sched<[WritePreLd]> {
1934 let Inst{31-25} = 0b1111100;
1935 let Inst{24} = inst;
1936 let Inst{22-20} = 0b001;
1937 let Inst{19-16} = 0b1111;
1938 let Inst{15-12} = 0b1111;
1941 let Inst{23} = addr{12}; // add = (U == '1')
1942 let Inst{11-0} = addr{11-0}; // imm12
1944 let DecoderMethod = "DecodeT2LoadLabel";
1947 def t2PLDpci : T2Iplpci<0, "pld">, Requires<[IsThumb2]>;
1948 def t2PLIpci : T2Iplpci<1, "pli">, Requires<[IsThumb2,HasV7]>;
1950 def : t2InstAlias<"pld${p}.w $addr",
1951 (t2PLDpci t2ldrlabel:$addr, pred:$p)>;
1952 def : InstAlias<"pli${p}.w $addr",
1953 (t2PLIpci t2ldrlabel:$addr, pred:$p), 0>,
1954 Requires<[IsThumb2,HasV7]>;
1956 // PLD/PLI with alternate literal form.
1957 def : t2InstAlias<"pld${p} $addr",
1958 (t2PLDpci t2ldr_pcrel_imm12:$addr, pred:$p)>;
1959 def : InstAlias<"pli${p} $addr",
1960 (t2PLIpci t2ldr_pcrel_imm12:$addr, pred:$p), 0>,
1961 Requires<[IsThumb2,HasV7]>;
1962 def : t2InstAlias<"pld${p}.w $addr",
1963 (t2PLDpci t2ldr_pcrel_imm12:$addr, pred:$p)>;
1964 def : InstAlias<"pli${p}.w $addr",
1965 (t2PLIpci t2ldr_pcrel_imm12:$addr, pred:$p), 0>,
1966 Requires<[IsThumb2,HasV7]>;
1968 //===----------------------------------------------------------------------===//
1969 // Load / store multiple Instructions.
1972 multiclass thumb2_ld_mult<string asm, InstrItinClass itin,
1973 InstrItinClass itin_upd, bit L_bit> {
1975 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1976 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1980 let Inst{31-27} = 0b11101;
1981 let Inst{26-25} = 0b00;
1982 let Inst{24-23} = 0b01; // Increment After
1984 let Inst{21} = 0; // No writeback
1985 let Inst{20} = L_bit;
1986 let Inst{19-16} = Rn;
1987 let Inst{15-0} = regs;
1990 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1991 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1995 let Inst{31-27} = 0b11101;
1996 let Inst{26-25} = 0b00;
1997 let Inst{24-23} = 0b01; // Increment After
1999 let Inst{21} = 1; // Writeback
2000 let Inst{20} = L_bit;
2001 let Inst{19-16} = Rn;
2002 let Inst{15-0} = regs;
2005 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2006 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
2010 let Inst{31-27} = 0b11101;
2011 let Inst{26-25} = 0b00;
2012 let Inst{24-23} = 0b10; // Decrement Before
2014 let Inst{21} = 0; // No writeback
2015 let Inst{20} = L_bit;
2016 let Inst{19-16} = Rn;
2017 let Inst{15-0} = regs;
2020 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2021 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
2025 let Inst{31-27} = 0b11101;
2026 let Inst{26-25} = 0b00;
2027 let Inst{24-23} = 0b10; // Decrement Before
2029 let Inst{21} = 1; // Writeback
2030 let Inst{20} = L_bit;
2031 let Inst{19-16} = Rn;
2032 let Inst{15-0} = regs;
2036 let hasSideEffects = 0 in {
2038 let mayLoad = 1, hasExtraDefRegAllocReq = 1, variadicOpsAreDefs = 1 in
2039 defm t2LDM : thumb2_ld_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
2041 multiclass thumb2_st_mult<string asm, InstrItinClass itin,
2042 InstrItinClass itin_upd, bit L_bit> {
2044 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2045 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
2049 let Inst{31-27} = 0b11101;
2050 let Inst{26-25} = 0b00;
2051 let Inst{24-23} = 0b01; // Increment After
2053 let Inst{21} = 0; // No writeback
2054 let Inst{20} = L_bit;
2055 let Inst{19-16} = Rn;
2057 let Inst{14} = regs{14};
2059 let Inst{12-0} = regs{12-0};
2062 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2063 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
2067 let Inst{31-27} = 0b11101;
2068 let Inst{26-25} = 0b00;
2069 let Inst{24-23} = 0b01; // Increment After
2071 let Inst{21} = 1; // Writeback
2072 let Inst{20} = L_bit;
2073 let Inst{19-16} = Rn;
2075 let Inst{14} = regs{14};
2077 let Inst{12-0} = regs{12-0};
2080 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2081 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
2085 let Inst{31-27} = 0b11101;
2086 let Inst{26-25} = 0b00;
2087 let Inst{24-23} = 0b10; // Decrement Before
2089 let Inst{21} = 0; // No writeback
2090 let Inst{20} = L_bit;
2091 let Inst{19-16} = Rn;
2093 let Inst{14} = regs{14};
2095 let Inst{12-0} = regs{12-0};
2098 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2099 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
2103 let Inst{31-27} = 0b11101;
2104 let Inst{26-25} = 0b00;
2105 let Inst{24-23} = 0b10; // Decrement Before
2107 let Inst{21} = 1; // Writeback
2108 let Inst{20} = L_bit;
2109 let Inst{19-16} = Rn;
2111 let Inst{14} = regs{14};
2113 let Inst{12-0} = regs{12-0};
2118 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
2119 defm t2STM : thumb2_st_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
2124 //===----------------------------------------------------------------------===//
2125 // Move Instructions.
2128 let hasSideEffects = 0 in
2129 def t2MOVr : T2sTwoReg<(outs GPRnopc:$Rd), (ins GPRnopc:$Rm), IIC_iMOVr,
2130 "mov", ".w\t$Rd, $Rm", []>, Sched<[WriteALU]> {
2131 let Inst{31-27} = 0b11101;
2132 let Inst{26-25} = 0b01;
2133 let Inst{24-21} = 0b0010;
2134 let Inst{19-16} = 0b1111; // Rn
2136 let Inst{14-12} = 0b000;
2137 let Inst{7-4} = 0b0000;
2139 def : t2InstAlias<"mov${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPRnopc:$Rm,
2140 pred:$p, zero_reg)>;
2141 def : t2InstAlias<"movs${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPRnopc:$Rm,
2143 def : t2InstAlias<"movs${p} $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPRnopc:$Rm,
2146 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
2147 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
2148 AddedComplexity = 1 in
2149 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
2150 "mov", ".w\t$Rd, $imm",
2151 [(set rGPR:$Rd, t2_so_imm:$imm)]>, Sched<[WriteALU]> {
2152 let Inst{31-27} = 0b11110;
2154 let Inst{24-21} = 0b0010;
2155 let Inst{19-16} = 0b1111; // Rn
2159 // cc_out is handled as part of the explicit mnemonic in the parser for 'mov'.
2160 // Use aliases to get that to play nice here.
2161 def : t2InstAlias<"movs${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
2163 def : t2InstAlias<"movs${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
2166 def : t2InstAlias<"mov${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
2167 pred:$p, zero_reg)>;
2168 def : t2InstAlias<"mov${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
2169 pred:$p, zero_reg)>;
2171 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
2172 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
2173 "movw", "\t$Rd, $imm",
2174 [(set rGPR:$Rd, imm0_65535:$imm)]>, Sched<[WriteALU]>,
2175 Requires<[IsThumb, HasV8MBaseline]> {
2176 let Inst{31-27} = 0b11110;
2178 let Inst{24-21} = 0b0010;
2179 let Inst{20} = 0; // The S bit.
2185 let Inst{11-8} = Rd;
2186 let Inst{19-16} = imm{15-12};
2187 let Inst{26} = imm{11};
2188 let Inst{14-12} = imm{10-8};
2189 let Inst{7-0} = imm{7-0};
2190 let DecoderMethod = "DecodeT2MOVTWInstruction";
2193 def : InstAlias<"mov${p} $Rd, $imm",
2194 (t2MOVi16 rGPR:$Rd, imm256_65535_expr:$imm, pred:$p), 0>,
2195 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteALU]>;
2197 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
2198 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>,
2201 let Constraints = "$src = $Rd" in {
2202 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
2203 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
2204 "movt", "\t$Rd, $imm",
2206 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]>,
2208 Requires<[IsThumb, HasV8MBaseline]> {
2209 let Inst{31-27} = 0b11110;
2211 let Inst{24-21} = 0b0110;
2212 let Inst{20} = 0; // The S bit.
2218 let Inst{11-8} = Rd;
2219 let Inst{19-16} = imm{15-12};
2220 let Inst{26} = imm{11};
2221 let Inst{14-12} = imm{10-8};
2222 let Inst{7-0} = imm{7-0};
2223 let DecoderMethod = "DecodeT2MOVTWInstruction";
2226 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
2227 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>,
2228 Sched<[WriteALU]>, Requires<[IsThumb, HasV8MBaseline]>;
2231 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
2233 //===----------------------------------------------------------------------===//
2234 // Extend Instructions.
2239 def t2SXTB : T2I_ext_rrot<0b100, "sxtb">;
2240 def t2SXTH : T2I_ext_rrot<0b000, "sxth">;
2241 def t2SXTB16 : T2I_ext_rrot_xtb16<0b010, "sxtb16">;
2243 def t2SXTAB : T2I_exta_rrot<0b100, "sxtab">;
2244 def t2SXTAH : T2I_exta_rrot<0b000, "sxtah">;
2245 def t2SXTAB16 : T2I_exta_rrot<0b010, "sxtab16">;
2247 def : T2Pat<(sext_inreg (rotr rGPR:$Rn, rot_imm:$rot), i8),
2248 (t2SXTB rGPR:$Rn, rot_imm:$rot)>;
2249 def : T2Pat<(sext_inreg (rotr rGPR:$Rn, rot_imm:$rot), i16),
2250 (t2SXTH rGPR:$Rn, rot_imm:$rot)>;
2251 def : Thumb2DSPPat<(add rGPR:$Rn,
2252 (sext_inreg (rotr rGPR:$Rm, rot_imm:$rot), i8)),
2253 (t2SXTAB rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2254 def : Thumb2DSPPat<(add rGPR:$Rn,
2255 (sext_inreg (rotr rGPR:$Rm, rot_imm:$rot), i16)),
2256 (t2SXTAH rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2257 def : Thumb2DSPPat<(int_arm_sxtb16 rGPR:$Rn),
2258 (t2SXTB16 rGPR:$Rn, 0)>;
2259 def : Thumb2DSPPat<(int_arm_sxtab16 rGPR:$Rn, rGPR:$Rm),
2260 (t2SXTAB16 rGPR:$Rn, rGPR:$Rm, 0)>;
2261 def : Thumb2DSPPat<(int_arm_sxtb16 (rotr rGPR:$Rn, rot_imm:$rot)),
2262 (t2SXTB16 rGPR:$Rn, rot_imm:$rot)>;
2263 def : Thumb2DSPPat<(int_arm_sxtab16 rGPR:$Rn, (rotr rGPR:$Rm, rot_imm:$rot)),
2264 (t2SXTAB16 rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2267 // A simple right-shift can also be used in most cases (the exception is the
2268 // SXTH operations with a rotate of 24: there the non-contiguous bits are
2270 def : Thumb2DSPPat<(add rGPR:$Rn, (sext_inreg
2271 (srl rGPR:$Rm, rot_imm:$rot), i8)),
2272 (t2SXTAB rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2273 def : Thumb2DSPPat<(add rGPR:$Rn, (sext_inreg
2274 (srl rGPR:$Rm, imm8_or_16:$rot), i16)),
2275 (t2SXTAH rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2276 def : Thumb2DSPPat<(add rGPR:$Rn, (sext_inreg
2277 (rotr rGPR:$Rm, (i32 24)), i16)),
2278 (t2SXTAH rGPR:$Rn, rGPR:$Rm, (i32 3))>;
2279 def : Thumb2DSPPat<(add rGPR:$Rn, (sext_inreg
2280 (or (srl rGPR:$Rm, (i32 24)),
2281 (shl rGPR:$Rm, (i32 8))), i16)),
2282 (t2SXTAH rGPR:$Rn, rGPR:$Rm, (i32 3))>;
2286 let AddedComplexity = 16 in {
2287 def t2UXTB : T2I_ext_rrot<0b101, "uxtb">;
2288 def t2UXTH : T2I_ext_rrot<0b001, "uxth">;
2289 def t2UXTB16 : T2I_ext_rrot_xtb16<0b011, "uxtb16">;
2291 def : Thumb2DSPPat<(and (rotr rGPR:$Rm, rot_imm:$rot), 0x000000FF),
2292 (t2UXTB rGPR:$Rm, rot_imm:$rot)>;
2293 def : Thumb2DSPPat<(and (rotr rGPR:$Rm, rot_imm:$rot), 0x0000FFFF),
2294 (t2UXTH rGPR:$Rm, rot_imm:$rot)>;
2295 def : Thumb2DSPPat<(and (rotr rGPR:$Rm, rot_imm:$rot), 0x00FF00FF),
2296 (t2UXTB16 rGPR:$Rm, rot_imm:$rot)>;
2298 def : Thumb2DSPPat<(int_arm_uxtb16 rGPR:$Rm),
2299 (t2UXTB16 rGPR:$Rm, 0)>;
2300 def : Thumb2DSPPat<(int_arm_uxtb16 (rotr rGPR:$Rn, rot_imm:$rot)),
2301 (t2UXTB16 rGPR:$Rn, rot_imm:$rot)>;
2303 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
2304 // The transformation should probably be done as a combiner action
2305 // instead so we can include a check for masking back in the upper
2306 // eight bits of the source into the lower eight bits of the result.
2307 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
2308 // (t2UXTB16 rGPR:$Src, 3)>,
2309 // Requires<[HasDSP, IsThumb2]>;
2310 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
2311 (t2UXTB16 rGPR:$Src, 1)>,
2312 Requires<[HasDSP, IsThumb2]>;
2314 def t2UXTAB : T2I_exta_rrot<0b101, "uxtab">;
2315 def t2UXTAH : T2I_exta_rrot<0b001, "uxtah">;
2316 def t2UXTAB16 : T2I_exta_rrot<0b011, "uxtab16">;
2318 def : Thumb2DSPPat<(add rGPR:$Rn, (and (rotr rGPR:$Rm, rot_imm:$rot),
2320 (t2UXTAB rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2321 def : Thumb2DSPPat<(add rGPR:$Rn, (and (rotr rGPR:$Rm, rot_imm:$rot),
2323 (t2UXTAH rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2324 def : Thumb2DSPPat<(add rGPR:$Rn, (and (srl rGPR:$Rm, rot_imm:$rot),
2326 (t2UXTAB rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2327 def : Thumb2DSPPat<(add rGPR:$Rn, (and (srl rGPR:$Rm, imm8_or_16:$rot),
2329 (t2UXTAH rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2330 def : Thumb2DSPPat<(int_arm_uxtab16 rGPR:$Rn, rGPR:$Rm),
2331 (t2UXTAB16 rGPR:$Rn, rGPR:$Rm, 0)>;
2332 def : Thumb2DSPPat<(int_arm_uxtab16 rGPR:$Rn, (rotr rGPR:$Rm, rot_imm:$rot)),
2333 (t2UXTAB16 rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>;
2337 //===----------------------------------------------------------------------===//
2338 // Arithmetic Instructions.
2342 defm t2ADD : T2I_bin_ii12rs<0b000, "add", add, 1>;
2343 defm t2SUB : T2I_bin_ii12rs<0b101, "sub", sub>;
2345 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
2347 // Currently, t2ADDS/t2SUBS are pseudo opcodes that exist only in the
2348 // selection DAG. They are "lowered" to real t2ADD/t2SUB opcodes by
2349 // AdjustInstrPostInstrSelection where we determine whether or not to
2350 // set the "s" bit based on CPSR liveness.
2352 // FIXME: Eliminate t2ADDS/t2SUBS pseudo opcodes after adding tablegen
2353 // support for an optional CPSR definition that corresponds to the DAG
2354 // node's second value. We can then eliminate the implicit def of CPSR.
2355 defm t2ADDS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi, ARMaddc, 1>;
2356 defm t2SUBS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi, ARMsubc>;
2358 def : T2Pat<(ARMsubs GPRnopc:$Rn, t2_so_imm:$imm),
2359 (t2SUBSri $Rn, t2_so_imm:$imm)>;
2360 def : T2Pat<(ARMsubs GPRnopc:$Rn, rGPR:$Rm), (t2SUBSrr $Rn, $Rm)>;
2361 def : T2Pat<(ARMsubs GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
2362 (t2SUBSrs $Rn, t2_so_reg:$ShiftedRm)>;
2364 let hasPostISelHook = 1 in {
2365 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc", ARMadde, 1>;
2366 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc", ARMsube>;
2369 def : t2InstSubst<"adc${s}${p} $rd, $rn, $imm",
2370 (t2SBCri rGPR:$rd, rGPR:$rn, t2_so_imm_not:$imm, pred:$p, s_cc_out:$s)>;
2371 def : t2InstSubst<"sbc${s}${p} $rd, $rn, $imm",
2372 (t2ADCri rGPR:$rd, rGPR:$rn, t2_so_imm_not:$imm, pred:$p, s_cc_out:$s)>;
2374 def : t2InstSubst<"add${s}${p}.w $rd, $rn, $imm",
2375 (t2SUBri rGPR:$rd, GPRnopc:$rn, t2_so_imm_neg:$imm, pred:$p, s_cc_out:$s)>;
2376 def : t2InstSubst<"sub${s}${p}.w $rd, $rn, $imm",
2377 (t2ADDri rGPR:$rd, GPRnopc:$rn, t2_so_imm_neg:$imm, pred:$p, s_cc_out:$s)>;
2378 def : t2InstSubst<"subw${p} $Rd, $Rn, $imm",
2379 (t2ADDri12 rGPR:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
2380 def : t2InstSubst<"sub${s}${p} $rd, $rn, $imm",
2381 (t2ADDri rGPR:$rd, GPRnopc:$rn, t2_so_imm_neg:$imm, pred:$p, s_cc_out:$s)>;
2382 def : t2InstSubst<"sub${p} $rd, $rn, $imm",
2383 (t2ADDri12 rGPR:$rd, GPR:$rn, imm0_4095_neg:$imm, pred:$p)>;
2386 def : t2InstSubst<"add${s}${p}.w $rd, $rn, $imm",
2387 (t2SUBspImm GPRsp:$rd, GPRsp:$rn, t2_so_imm_neg:$imm, pred:$p, s_cc_out:$s)>;
2388 def : t2InstSubst<"sub${s}${p}.w $rd, $rn, $imm",
2389 (t2ADDspImm GPRsp:$rd, GPRsp:$rn, t2_so_imm_neg:$imm, pred:$p, s_cc_out:$s)>;
2390 def : t2InstSubst<"subw${p} $Rd, $Rn, $imm",
2391 (t2ADDspImm12 GPRsp:$Rd, GPRsp:$Rn, imm0_4095_neg:$imm, pred:$p)>;
2392 def : t2InstSubst<"sub${s}${p} $rd, $rn, $imm",
2393 (t2ADDspImm GPRsp:$rd, GPRsp:$rn, t2_so_imm_neg:$imm, pred:$p, s_cc_out:$s)>;
2394 def : t2InstSubst<"sub${p} $rd, $rn, $imm",
2395 (t2ADDspImm12 GPRsp:$rd, GPRsp:$rn, imm0_4095_neg:$imm, pred:$p)>;
2399 defm t2RSB : T2I_rbin_irs <0b1110, "rsb", sub>;
2401 // FIXME: Eliminate them if we can write def : Pat patterns which defines
2402 // CPSR and the implicit def of CPSR is not needed.
2403 defm t2RSBS : T2I_rbin_s_is <ARMsubc>;
2405 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
2406 // The assume-no-carry-in form uses the negation of the input since add/sub
2407 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
2408 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
2410 // The AddedComplexity preferences the first variant over the others since
2411 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
2412 let AddedComplexity = 1 in
2413 def : T2Pat<(add rGPR:$src, imm1_255_neg:$imm),
2414 (t2SUBri rGPR:$src, imm1_255_neg:$imm)>;
2415 def : T2Pat<(add rGPR:$src, t2_so_imm_neg:$imm),
2416 (t2SUBri rGPR:$src, t2_so_imm_neg:$imm)>;
2417 def : T2Pat<(add rGPR:$src, imm0_4095_neg:$imm),
2418 (t2SUBri12 rGPR:$src, imm0_4095_neg:$imm)>;
2419 def : T2Pat<(add GPR:$src, imm0_65535_neg:$imm),
2420 (t2SUBrr GPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
2422 // Do the same for v8m targets since they support movw with a 16-bit value.
2423 def : T1Pat<(add tGPR:$src, imm0_65535_neg:$imm),
2424 (tSUBrr tGPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>,
2425 Requires<[HasV8MBaseline]>;
2427 let AddedComplexity = 1 in
2428 def : T2Pat<(ARMaddc rGPR:$src, imm1_255_neg:$imm),
2429 (t2SUBSri rGPR:$src, imm1_255_neg:$imm)>;
2430 def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm),
2431 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
2432 def : T2Pat<(ARMaddc rGPR:$src, imm0_65535_neg:$imm),
2433 (t2SUBSrr rGPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
2434 // The with-carry-in form matches bitwise not instead of the negation.
2435 // Effectively, the inverse interpretation of the carry flag already accounts
2436 // for part of the negation.
2437 let AddedComplexity = 1 in
2438 def : T2Pat<(ARMadde rGPR:$src, imm0_255_not:$imm, CPSR),
2439 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
2440 def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR),
2441 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
2442 def : T2Pat<(ARMadde rGPR:$src, imm0_65535_neg:$imm, CPSR),
2443 (t2SBCrr rGPR:$src, (t2MOVi16 (imm_not_XFORM imm:$imm)))>;
2445 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2446 NoItinerary, "sel", "\t$Rd, $Rn, $Rm",
2447 [(set GPR:$Rd, (int_arm_sel GPR:$Rn, GPR:$Rm))]>,
2448 Requires<[IsThumb2, HasDSP]> {
2449 let Inst{31-27} = 0b11111;
2450 let Inst{26-24} = 0b010;
2452 let Inst{22-20} = 0b010;
2453 let Inst{15-12} = 0b1111;
2455 let Inst{6-4} = 0b000;
2458 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
2459 // And Miscellaneous operations -- for disassembly only
2460 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
2461 list<dag> pat, dag iops, string asm>
2462 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
2463 Requires<[IsThumb2, HasDSP]> {
2464 let Inst{31-27} = 0b11111;
2465 let Inst{26-23} = 0b0101;
2466 let Inst{22-20} = op22_20;
2467 let Inst{15-12} = 0b1111;
2468 let Inst{7-4} = op7_4;
2474 let Inst{11-8} = Rd;
2475 let Inst{19-16} = Rn;
2479 class T2I_pam_intrinsics<bits<3> op22_20, bits<4> op7_4, string opc,
2480 Intrinsic intrinsic>
2481 : T2I_pam<op22_20, op7_4, opc,
2482 [(set rGPR:$Rd, (intrinsic rGPR:$Rn, rGPR:$Rm))],
2483 (ins rGPR:$Rn, rGPR:$Rm), "\t$Rd, $Rn, $Rm">;
2485 class T2I_pam_intrinsics_rev<bits<3> op22_20, bits<4> op7_4, string opc>
2486 : T2I_pam<op22_20, op7_4, opc, [],
2487 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2489 // Saturating add/subtract
2490 def t2QADD16 : T2I_pam_intrinsics<0b001, 0b0001, "qadd16", int_arm_qadd16>;
2491 def t2QADD8 : T2I_pam_intrinsics<0b000, 0b0001, "qadd8", int_arm_qadd8>;
2492 def t2QASX : T2I_pam_intrinsics<0b010, 0b0001, "qasx", int_arm_qasx>;
2493 def t2UQSUB8 : T2I_pam_intrinsics<0b100, 0b0101, "uqsub8", int_arm_uqsub8>;
2494 def t2QSAX : T2I_pam_intrinsics<0b110, 0b0001, "qsax", int_arm_qsax>;
2495 def t2QSUB16 : T2I_pam_intrinsics<0b101, 0b0001, "qsub16", int_arm_qsub16>;
2496 def t2QSUB8 : T2I_pam_intrinsics<0b100, 0b0001, "qsub8", int_arm_qsub8>;
2497 def t2UQADD16 : T2I_pam_intrinsics<0b001, 0b0101, "uqadd16", int_arm_uqadd16>;
2498 def t2UQADD8 : T2I_pam_intrinsics<0b000, 0b0101, "uqadd8", int_arm_uqadd8>;
2499 def t2UQASX : T2I_pam_intrinsics<0b010, 0b0101, "uqasx", int_arm_uqasx>;
2500 def t2UQSAX : T2I_pam_intrinsics<0b110, 0b0101, "uqsax", int_arm_uqsax>;
2501 def t2UQSUB16 : T2I_pam_intrinsics<0b101, 0b0101, "uqsub16", int_arm_uqsub16>;
2502 def t2QADD : T2I_pam_intrinsics_rev<0b000, 0b1000, "qadd">;
2503 def t2QSUB : T2I_pam_intrinsics_rev<0b000, 0b1010, "qsub">;
2504 def t2QDADD : T2I_pam_intrinsics_rev<0b000, 0b1001, "qdadd">;
2505 def t2QDSUB : T2I_pam_intrinsics_rev<0b000, 0b1011, "qdsub">;
2507 def : Thumb2DSPPat<(int_arm_qadd rGPR:$Rm, rGPR:$Rn),
2508 (t2QADD rGPR:$Rm, rGPR:$Rn)>;
2509 def : Thumb2DSPPat<(int_arm_qsub rGPR:$Rm, rGPR:$Rn),
2510 (t2QSUB rGPR:$Rm, rGPR:$Rn)>;
2511 def : Thumb2DSPPat<(int_arm_qadd rGPR:$Rm, (int_arm_qadd rGPR:$Rn, rGPR:$Rn)),
2512 (t2QDADD rGPR:$Rm, rGPR:$Rn)>;
2513 def : Thumb2DSPPat<(int_arm_qsub rGPR:$Rm, (int_arm_qadd rGPR:$Rn, rGPR:$Rn)),
2514 (t2QDSUB rGPR:$Rm, rGPR:$Rn)>;
2516 def : Thumb2DSPPat<(saddsat rGPR:$Rm, rGPR:$Rn),
2517 (t2QADD rGPR:$Rm, rGPR:$Rn)>;
2518 def : Thumb2DSPPat<(ssubsat rGPR:$Rm, rGPR:$Rn),
2519 (t2QSUB rGPR:$Rm, rGPR:$Rn)>;
2520 def : Thumb2DSPPat<(saddsat rGPR:$Rm, (saddsat rGPR:$Rn, rGPR:$Rn)),
2521 (t2QDADD rGPR:$Rm, rGPR:$Rn)>;
2522 def : Thumb2DSPPat<(ssubsat rGPR:$Rm, (saddsat rGPR:$Rn, rGPR:$Rn)),
2523 (t2QDSUB rGPR:$Rm, rGPR:$Rn)>;
2525 def : Thumb2DSPPat<(ARMqadd8b rGPR:$Rm, rGPR:$Rn),
2526 (t2QADD8 rGPR:$Rm, rGPR:$Rn)>;
2527 def : Thumb2DSPPat<(ARMqsub8b rGPR:$Rm, rGPR:$Rn),
2528 (t2QSUB8 rGPR:$Rm, rGPR:$Rn)>;
2529 def : Thumb2DSPPat<(ARMqadd16b rGPR:$Rm, rGPR:$Rn),
2530 (t2QADD16 rGPR:$Rm, rGPR:$Rn)>;
2531 def : Thumb2DSPPat<(ARMqsub16b rGPR:$Rm, rGPR:$Rn),
2532 (t2QSUB16 rGPR:$Rm, rGPR:$Rn)>;
2534 def : Thumb2DSPPat<(ARMuqadd8b rGPR:$Rm, rGPR:$Rn),
2535 (t2UQADD8 rGPR:$Rm, rGPR:$Rn)>;
2536 def : Thumb2DSPPat<(ARMuqsub8b rGPR:$Rm, rGPR:$Rn),
2537 (t2UQSUB8 rGPR:$Rm, rGPR:$Rn)>;
2538 def : Thumb2DSPPat<(ARMuqadd16b rGPR:$Rm, rGPR:$Rn),
2539 (t2UQADD16 rGPR:$Rm, rGPR:$Rn)>;
2540 def : Thumb2DSPPat<(ARMuqsub16b rGPR:$Rm, rGPR:$Rn),
2541 (t2UQSUB16 rGPR:$Rm, rGPR:$Rn)>;
2543 // Signed/Unsigned add/subtract
2545 def t2SASX : T2I_pam_intrinsics<0b010, 0b0000, "sasx", int_arm_sasx>;
2546 def t2SADD16 : T2I_pam_intrinsics<0b001, 0b0000, "sadd16", int_arm_sadd16>;
2547 def t2SADD8 : T2I_pam_intrinsics<0b000, 0b0000, "sadd8", int_arm_sadd8>;
2548 def t2SSAX : T2I_pam_intrinsics<0b110, 0b0000, "ssax", int_arm_ssax>;
2549 def t2SSUB16 : T2I_pam_intrinsics<0b101, 0b0000, "ssub16", int_arm_ssub16>;
2550 def t2SSUB8 : T2I_pam_intrinsics<0b100, 0b0000, "ssub8", int_arm_ssub8>;
2551 def t2UASX : T2I_pam_intrinsics<0b010, 0b0100, "uasx", int_arm_uasx>;
2552 def t2UADD16 : T2I_pam_intrinsics<0b001, 0b0100, "uadd16", int_arm_uadd16>;
2553 def t2UADD8 : T2I_pam_intrinsics<0b000, 0b0100, "uadd8", int_arm_uadd8>;
2554 def t2USAX : T2I_pam_intrinsics<0b110, 0b0100, "usax", int_arm_usax>;
2555 def t2USUB16 : T2I_pam_intrinsics<0b101, 0b0100, "usub16", int_arm_usub16>;
2556 def t2USUB8 : T2I_pam_intrinsics<0b100, 0b0100, "usub8", int_arm_usub8>;
2558 // Signed/Unsigned halving add/subtract
2560 def t2SHASX : T2I_pam_intrinsics<0b010, 0b0010, "shasx", int_arm_shasx>;
2561 def t2SHADD16 : T2I_pam_intrinsics<0b001, 0b0010, "shadd16", int_arm_shadd16>;
2562 def t2SHADD8 : T2I_pam_intrinsics<0b000, 0b0010, "shadd8", int_arm_shadd8>;
2563 def t2SHSAX : T2I_pam_intrinsics<0b110, 0b0010, "shsax", int_arm_shsax>;
2564 def t2SHSUB16 : T2I_pam_intrinsics<0b101, 0b0010, "shsub16", int_arm_shsub16>;
2565 def t2SHSUB8 : T2I_pam_intrinsics<0b100, 0b0010, "shsub8", int_arm_shsub8>;
2566 def t2UHASX : T2I_pam_intrinsics<0b010, 0b0110, "uhasx", int_arm_uhasx>;
2567 def t2UHADD16 : T2I_pam_intrinsics<0b001, 0b0110, "uhadd16", int_arm_uhadd16>;
2568 def t2UHADD8 : T2I_pam_intrinsics<0b000, 0b0110, "uhadd8", int_arm_uhadd8>;
2569 def t2UHSAX : T2I_pam_intrinsics<0b110, 0b0110, "uhsax", int_arm_uhsax>;
2570 def t2UHSUB16 : T2I_pam_intrinsics<0b101, 0b0110, "uhsub16", int_arm_uhsub16>;
2571 def t2UHSUB8 : T2I_pam_intrinsics<0b100, 0b0110, "uhsub8", int_arm_uhsub8>;
2573 // Helper class for disassembly only
2574 // A6.3.16 & A6.3.17
2575 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
2576 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2577 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2578 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2579 let Inst{31-27} = 0b11111;
2580 let Inst{26-24} = 0b011;
2581 let Inst{23} = long;
2582 let Inst{22-20} = op22_20;
2583 let Inst{7-4} = op7_4;
2586 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2587 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2588 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
2589 let Inst{31-27} = 0b11111;
2590 let Inst{26-24} = 0b011;
2591 let Inst{23} = long;
2592 let Inst{22-20} = op22_20;
2593 let Inst{7-4} = op7_4;
2596 // Unsigned Sum of Absolute Differences [and Accumulate].
2597 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2598 (ins rGPR:$Rn, rGPR:$Rm),
2599 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm",
2600 [(set rGPR:$Rd, (int_arm_usad8 rGPR:$Rn, rGPR:$Rm))]>,
2601 Requires<[IsThumb2, HasDSP]> {
2602 let Inst{15-12} = 0b1111;
2604 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2605 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
2606 "usada8", "\t$Rd, $Rn, $Rm, $Ra",
2607 [(set rGPR:$Rd, (int_arm_usada8 rGPR:$Rn, rGPR:$Rm, rGPR:$Ra))]>,
2608 Requires<[IsThumb2, HasDSP]>;
2610 // Signed/Unsigned saturate.
2611 class T2SatI<dag iops, string opc, string asm>
2612 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, []> {
2618 let Inst{31-24} = 0b11110011;
2619 let Inst{21} = sh{5};
2621 let Inst{19-16} = Rn;
2623 let Inst{14-12} = sh{4-2};
2624 let Inst{11-8} = Rd;
2625 let Inst{7-6} = sh{1-0};
2627 let Inst{4-0} = sat_imm;
2630 def t2SSAT: T2SatI<(ins imm1_32:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2631 "ssat", "\t$Rd, $sat_imm, $Rn$sh">,
2632 Requires<[IsThumb2]>, Sched<[WriteALU]> {
2633 let Inst{23-22} = 0b00;
2637 def t2SSAT16: T2SatI<(ins imm1_16:$sat_imm, rGPR:$Rn),
2638 "ssat16", "\t$Rd, $sat_imm, $Rn">,
2639 Requires<[IsThumb2, HasDSP]>, Sched<[WriteALU]> {
2640 let Inst{23-22} = 0b00;
2645 def t2USAT: T2SatI<(ins imm0_31:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2646 "usat", "\t$Rd, $sat_imm, $Rn$sh">,
2647 Requires<[IsThumb2]>, Sched<[WriteALU]> {
2648 let Inst{23-22} = 0b10;
2651 def t2USAT16: T2SatI<(ins imm0_15:$sat_imm, rGPR:$Rn),
2652 "usat16", "\t$Rd, $sat_imm, $Rn">,
2653 Requires<[IsThumb2, HasDSP]>, Sched<[WriteALU]> {
2654 let Inst{23-22} = 0b10;
2659 def : T2Pat<(ARMssat GPRnopc:$Rn, imm0_31:$imm),
2660 (t2SSAT imm0_31:$imm, GPRnopc:$Rn, 0)>;
2661 def : T2Pat<(ARMusat GPRnopc:$Rn, imm0_31:$imm),
2662 (t2USAT imm0_31:$imm, GPRnopc:$Rn, 0)>;
2663 def : T2Pat<(int_arm_ssat GPR:$a, imm1_32:$pos),
2664 (t2SSAT imm1_32:$pos, GPR:$a, 0)>;
2665 def : T2Pat<(int_arm_usat GPR:$a, imm0_31:$pos),
2666 (t2USAT imm0_31:$pos, GPR:$a, 0)>;
2667 def : T2Pat<(int_arm_ssat16 GPR:$a, imm1_16:$pos),
2668 (t2SSAT16 imm1_16:$pos, GPR:$a)>;
2669 def : T2Pat<(int_arm_usat16 GPR:$a, imm0_15:$pos),
2670 (t2USAT16 imm0_15:$pos, GPR:$a)>;
2671 def : T2Pat<(int_arm_ssat (shl GPRnopc:$a, imm0_31:$shft), imm1_32:$pos),
2672 (t2SSAT imm1_32:$pos, GPRnopc:$a, imm0_31:$shft)>;
2673 def : T2Pat<(int_arm_ssat (sra GPRnopc:$a, asr_imm:$shft), imm1_32:$pos),
2674 (t2SSAT imm1_32:$pos, GPRnopc:$a, asr_imm:$shft)>;
2675 def : T2Pat<(int_arm_usat (shl GPRnopc:$a, imm0_31:$shft), imm0_31:$pos),
2676 (t2USAT imm0_31:$pos, GPRnopc:$a, imm0_31:$shft)>;
2677 def : T2Pat<(int_arm_usat (sra GPRnopc:$a, asr_imm:$shft), imm0_31:$pos),
2678 (t2USAT imm0_31:$pos, GPRnopc:$a, asr_imm:$shft)>;
2679 def : T2Pat<(ARMssat (shl GPRnopc:$a, imm0_31:$shft), imm0_31:$pos),
2680 (t2SSAT imm0_31:$pos, GPRnopc:$a, imm0_31:$shft)>;
2681 def : T2Pat<(ARMssat (sra GPRnopc:$Rn, asr_imm:$shft), imm0_31:$pos),
2682 (t2SSAT imm0_31:$pos, GPRnopc:$Rn, asr_imm:$shft)>;
2683 def : T2Pat<(ARMusat (shl GPRnopc:$a, imm0_31:$shft), imm0_31:$pos),
2684 (t2USAT imm0_31:$pos, GPRnopc:$a, imm0_31:$shft)>;
2685 def : T2Pat<(ARMusat (sra GPRnopc:$Rn, asr_imm:$shft), imm0_31:$pos),
2686 (t2USAT imm0_31:$pos, GPRnopc:$Rn, asr_imm:$shft)>;
2689 //===----------------------------------------------------------------------===//
2690 // Shift and rotate Instructions.
2693 defm t2LSL : T2I_sh_ir<0b00, "lsl", imm1_31, shl>;
2694 defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr, srl>;
2695 defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr, sra>;
2696 defm t2ROR : T2I_sh_ir<0b11, "ror", imm1_31, rotr>;
2698 // LSL #0 is actually MOV, and has slightly different permitted registers to
2699 // LSL with non-zero shift
2700 def : t2InstAlias<"lsl${s}${p} $Rd, $Rm, #0",
2701 (t2MOVr GPRnopc:$Rd, GPRnopc:$Rm, pred:$p, cc_out:$s)>;
2702 def : t2InstAlias<"lsl${s}${p}.w $Rd, $Rm, #0",
2703 (t2MOVr GPRnopc:$Rd, GPRnopc:$Rm, pred:$p, cc_out:$s)>;
2705 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
2706 def : T2Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
2707 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
2709 let Uses = [CPSR] in {
2710 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2711 "rrx", "\t$Rd, $Rm",
2712 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]>, Sched<[WriteALU]> {
2713 let Inst{31-27} = 0b11101;
2714 let Inst{26-25} = 0b01;
2715 let Inst{24-21} = 0b0010;
2716 let Inst{19-16} = 0b1111; // Rn
2718 let Unpredictable{15} = 0b1;
2719 let Inst{14-12} = 0b000;
2720 let Inst{7-4} = 0b0011;
2724 let isCodeGenOnly = 1, Defs = [CPSR] in {
2725 def t2MOVsrl_flag : T2TwoRegShiftImm<
2726 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2727 "lsrs", ".w\t$Rd, $Rm, #1",
2728 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]>,
2730 let Inst{31-27} = 0b11101;
2731 let Inst{26-25} = 0b01;
2732 let Inst{24-21} = 0b0010;
2733 let Inst{20} = 1; // The S bit.
2734 let Inst{19-16} = 0b1111; // Rn
2735 let Inst{5-4} = 0b01; // Shift type.
2736 // Shift amount = Inst{14-12:7-6} = 1.
2737 let Inst{14-12} = 0b000;
2738 let Inst{7-6} = 0b01;
2740 def t2MOVsra_flag : T2TwoRegShiftImm<
2741 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2742 "asrs", ".w\t$Rd, $Rm, #1",
2743 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]>,
2745 let Inst{31-27} = 0b11101;
2746 let Inst{26-25} = 0b01;
2747 let Inst{24-21} = 0b0010;
2748 let Inst{20} = 1; // The S bit.
2749 let Inst{19-16} = 0b1111; // Rn
2750 let Inst{5-4} = 0b10; // Shift type.
2751 // Shift amount = Inst{14-12:7-6} = 1.
2752 let Inst{14-12} = 0b000;
2753 let Inst{7-6} = 0b01;
2757 //===----------------------------------------------------------------------===//
2758 // Bitwise Instructions.
2761 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2762 IIC_iBITi, IIC_iBITr, IIC_iBITsi, and, 1>;
2763 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2764 IIC_iBITi, IIC_iBITr, IIC_iBITsi, or, 1>;
2765 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2766 IIC_iBITi, IIC_iBITr, IIC_iBITsi, xor, 1>;
2768 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2769 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2770 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2772 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2773 string opc, string asm, list<dag> pattern>
2774 : T2I<oops, iops, itin, opc, asm, pattern> {
2779 let Inst{11-8} = Rd;
2780 let Inst{4-0} = msb{4-0};
2781 let Inst{14-12} = lsb{4-2};
2782 let Inst{7-6} = lsb{1-0};
2785 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2786 string opc, string asm, list<dag> pattern>
2787 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2790 let Inst{19-16} = Rn;
2793 let Constraints = "$src = $Rd" in
2794 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2795 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2796 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]>, Sched<[WriteALU]> {
2797 let Inst{31-27} = 0b11110;
2798 let Inst{26} = 0; // should be 0.
2800 let Inst{24-20} = 0b10110;
2801 let Inst{19-16} = 0b1111; // Rn
2803 let Inst{5} = 0; // should be 0.
2806 let msb{4-0} = imm{9-5};
2807 let lsb{4-0} = imm{4-0};
2810 def t2SBFX: T2TwoRegBitFI<
2811 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2812 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []>, Sched<[WriteALU]> {
2813 let Inst{31-27} = 0b11110;
2815 let Inst{24-20} = 0b10100;
2818 let hasSideEffects = 0;
2821 def t2UBFX: T2TwoRegBitFI<
2822 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2823 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []>, Sched<[WriteALU]> {
2824 let Inst{31-27} = 0b11110;
2826 let Inst{24-20} = 0b11100;
2829 let hasSideEffects = 0;
2832 // A8.8.247 UDF - Undefined (Encoding T2)
2833 def t2UDF : T2XI<(outs), (ins imm0_65535:$imm16), IIC_Br, "udf.w\t$imm16",
2834 [(int_arm_undefined imm0_65535:$imm16)]> {
2836 let Inst{31-29} = 0b111;
2837 let Inst{28-27} = 0b10;
2838 let Inst{26-20} = 0b1111111;
2839 let Inst{19-16} = imm16{15-12};
2841 let Inst{14-12} = 0b010;
2842 let Inst{11-0} = imm16{11-0};
2845 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2846 let Constraints = "$src = $Rd" in {
2847 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2848 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2849 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2850 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2851 bf_inv_mask_imm:$imm))]>, Sched<[WriteALU]> {
2852 let Inst{31-27} = 0b11110;
2853 let Inst{26} = 0; // should be 0.
2855 let Inst{24-20} = 0b10110;
2857 let Inst{5} = 0; // should be 0.
2860 let msb{4-0} = imm{9-5};
2861 let lsb{4-0} = imm{4-0};
2865 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2866 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2867 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2868 def : t2InstAlias<"orn${s}${p}.w $Rd, $Rn, $imm",
2869 (t2ORNri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
2870 def : t2InstAlias<"orn${s}${p}.w $Rd, $Rn, $Rm",
2871 (t2ORNrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
2872 def : t2InstAlias<"orn${s}${p}.w $Rd, $Rn, $ShiftedRm",
2873 (t2ORNrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>;
2875 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
2876 /// unary operation that produces a value. These are predicable and can be
2877 /// changed to modify CPSR.
2878 multiclass T2I_un_irs<bits<4> opcod, string opc,
2879 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
2881 bit Cheap = 0, bit ReMat = 0, bit MoveImm = 0> {
2883 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
2885 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]>, Sched<[WriteALU]> {
2886 let isAsCheapAsAMove = Cheap;
2887 let isReMaterializable = ReMat;
2888 let isMoveImm = MoveImm;
2889 let Inst{31-27} = 0b11110;
2891 let Inst{24-21} = opcod;
2892 let Inst{19-16} = 0b1111; // Rn
2896 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
2897 opc, ".w\t$Rd, $Rm",
2898 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>, Sched<[WriteALU]> {
2899 let Inst{31-27} = 0b11101;
2900 let Inst{26-25} = 0b01;
2901 let Inst{24-21} = opcod;
2902 let Inst{19-16} = 0b1111; // Rn
2903 let Inst{14-12} = 0b000; // imm3
2904 let Inst{7-6} = 0b00; // imm2
2905 let Inst{5-4} = 0b00; // type
2908 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
2909 opc, ".w\t$Rd, $ShiftedRm",
2910 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]>,
2912 let Inst{31-27} = 0b11101;
2913 let Inst{26-25} = 0b01;
2914 let Inst{24-21} = opcod;
2915 let Inst{19-16} = 0b1111; // Rn
2919 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2920 let AddedComplexity = 1 in
2921 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2922 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2925 let AddedComplexity = 1 in
2926 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2927 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2929 // top16Zero - answer true if the upper 16 bits of $src are 0, false otherwise
2930 def top16Zero: PatLeaf<(i32 rGPR:$src), [{
2931 return !SDValue(N,0)->getValueType(0).isVector() &&
2932 CurDAG->MaskedValueIsZero(SDValue(N,0), APInt::getHighBitsSet(32, 16));
2935 // so_imm_notSext is needed instead of so_imm_not, as the value of imm
2936 // will match the extended, not the original bitWidth for $src.
2937 def : T2Pat<(and top16Zero:$src, t2_so_imm_notSext:$imm),
2938 (t2BICri rGPR:$src, t2_so_imm_notSext:$imm)>;
2941 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2942 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2943 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2944 Requires<[IsThumb2]>;
2946 def : T2Pat<(t2_so_imm_not:$src),
2947 (t2MVNi t2_so_imm_not:$src)>;
2949 // There are shorter Thumb encodings for ADD than ORR, so to increase
2950 // Thumb2SizeReduction's chances later on we select a t2ADD for an or where
2952 def : T2Pat<(or AddLikeOrOp:$Rn, t2_so_imm:$imm),
2953 (t2ADDri rGPR:$Rn, t2_so_imm:$imm)>;
2955 def : T2Pat<(or AddLikeOrOp:$Rn, imm0_4095:$Rm),
2956 (t2ADDri12 rGPR:$Rn, imm0_4095:$Rm)>;
2958 def : T2Pat<(or AddLikeOrOp:$Rn, non_imm32:$Rm),
2959 (t2ADDrr $Rn, $Rm)>;
2961 //===----------------------------------------------------------------------===//
2962 // Multiply Instructions.
2964 let isCommutable = 1 in
2965 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2966 "mul", "\t$Rd, $Rn, $Rm",
2967 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]>,
2968 Sched<[WriteMUL32, ReadMUL, ReadMUL]> {
2969 let Inst{31-27} = 0b11111;
2970 let Inst{26-23} = 0b0110;
2971 let Inst{22-20} = 0b000;
2972 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2973 let Inst{7-4} = 0b0000; // Multiply
2976 class T2FourRegMLA<bits<4> op7_4, string opc, list<dag> pattern>
2977 : T2FourReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2978 opc, "\t$Rd, $Rn, $Rm, $Ra", pattern>,
2979 Requires<[IsThumb2, UseMulOps]>,
2980 Sched<[WriteMAC32, ReadMUL, ReadMUL, ReadMAC]> {
2981 let Inst{31-27} = 0b11111;
2982 let Inst{26-23} = 0b0110;
2983 let Inst{22-20} = 0b000;
2984 let Inst{7-4} = op7_4;
2987 def t2MLA : T2FourRegMLA<0b0000, "mla",
2988 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm),
2990 def t2MLS: T2FourRegMLA<0b0001, "mls",
2991 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn,
2994 // Extra precision multiplies with low / high results
2995 let hasSideEffects = 0 in {
2996 let isCommutable = 1 in {
2997 def t2SMULL : T2MulLong<0b000, 0b0000, "smull",
2998 [(set rGPR:$RdLo, rGPR:$RdHi,
2999 (smullohi rGPR:$Rn, rGPR:$Rm))]>;
3000 def t2UMULL : T2MulLong<0b010, 0b0000, "umull",
3001 [(set rGPR:$RdLo, rGPR:$RdHi,
3002 (umullohi rGPR:$Rn, rGPR:$Rm))]>;
3005 // Multiply + accumulate
3006 def t2SMLAL : T2MlaLong<0b100, 0b0000, "smlal">;
3007 def t2UMLAL : T2MlaLong<0b110, 0b0000, "umlal">;
3008 def t2UMAAL : T2MlaLong<0b110, 0b0110, "umaal">, Requires<[IsThumb2, HasDSP]>;
3011 // Rounding variants of the below included for disassembly only
3013 // Most significant word multiply
3014 class T2SMMUL<bits<4> op7_4, string opc, list<dag> pattern>
3015 : T2ThreeReg<(outs rGPR:$Rd),
3016 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
3017 opc, "\t$Rd, $Rn, $Rm", pattern>,
3018 Requires<[IsThumb2, HasDSP]>,
3019 Sched<[WriteMUL32, ReadMUL, ReadMUL]> {
3020 let Inst{31-27} = 0b11111;
3021 let Inst{26-23} = 0b0110;
3022 let Inst{22-20} = 0b101;
3023 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
3024 let Inst{7-4} = op7_4;
3026 def t2SMMUL : T2SMMUL<0b0000, "smmul", [(set rGPR:$Rd, (mulhs rGPR:$Rn,
3029 T2SMMUL<0b0001, "smmulr",
3030 [(set rGPR:$Rd, (ARMsmmlar rGPR:$Rn, rGPR:$Rm, (i32 0)))]>;
3032 class T2FourRegSMMLA<bits<3> op22_20, bits<4> op7_4, string opc,
3034 : T2FourReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
3035 opc, "\t$Rd, $Rn, $Rm, $Ra", pattern>,
3036 Requires<[IsThumb2, HasDSP, UseMulOps]>,
3037 Sched<[WriteMAC32, ReadMUL, ReadMUL, ReadMAC]> {
3038 let Inst{31-27} = 0b11111;
3039 let Inst{26-23} = 0b0110;
3040 let Inst{22-20} = op22_20;
3041 let Inst{7-4} = op7_4;
3044 def t2SMMLA : T2FourRegSMMLA<0b101, 0b0000, "smmla",
3045 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>;
3046 def t2SMMLAR: T2FourRegSMMLA<0b101, 0b0001, "smmlar",
3047 [(set rGPR:$Rd, (ARMsmmlar rGPR:$Rn, rGPR:$Rm, rGPR:$Ra))]>;
3048 def t2SMMLS: T2FourRegSMMLA<0b110, 0b0000, "smmls", []>;
3049 def t2SMMLSR: T2FourRegSMMLA<0b110, 0b0001, "smmlsr",
3050 [(set rGPR:$Rd, (ARMsmmlsr rGPR:$Rn, rGPR:$Rm, rGPR:$Ra))]>;
3052 class T2ThreeRegSMUL<bits<3> op22_20, bits<2> op5_4, string opc,
3054 : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16, opc,
3055 "\t$Rd, $Rn, $Rm", pattern>,
3056 Requires<[IsThumb2, HasDSP]>,
3057 Sched<[WriteMUL16, ReadMUL, ReadMUL]> {
3058 let Inst{31-27} = 0b11111;
3059 let Inst{26-23} = 0b0110;
3060 let Inst{22-20} = op22_20;
3061 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
3062 let Inst{7-6} = 0b00;
3063 let Inst{5-4} = op5_4;
3066 def t2SMULBB : T2ThreeRegSMUL<0b001, 0b00, "smulbb",
3067 [(set rGPR:$Rd, (bb_mul rGPR:$Rn, rGPR:$Rm))]>;
3068 def t2SMULBT : T2ThreeRegSMUL<0b001, 0b01, "smulbt",
3069 [(set rGPR:$Rd, (bt_mul rGPR:$Rn, rGPR:$Rm))]>;
3070 def t2SMULTB : T2ThreeRegSMUL<0b001, 0b10, "smultb",
3071 [(set rGPR:$Rd, (tb_mul rGPR:$Rn, rGPR:$Rm))]>;
3072 def t2SMULTT : T2ThreeRegSMUL<0b001, 0b11, "smultt",
3073 [(set rGPR:$Rd, (tt_mul rGPR:$Rn, rGPR:$Rm))]>;
3074 def t2SMULWB : T2ThreeRegSMUL<0b011, 0b00, "smulwb",
3075 [(set rGPR:$Rd, (ARMsmulwb rGPR:$Rn, rGPR:$Rm))]>;
3076 def t2SMULWT : T2ThreeRegSMUL<0b011, 0b01, "smulwt",
3077 [(set rGPR:$Rd, (ARMsmulwt rGPR:$Rn, rGPR:$Rm))]>;
3079 def : Thumb2DSPPat<(mul sext_16_node:$Rn, (sext_bottom_16 rGPR:$Rm)),
3080 (t2SMULBB rGPR:$Rn, rGPR:$Rm)>;
3081 def : Thumb2DSPPat<(mul sext_16_node:$Rn, (sext_top_16 rGPR:$Rm)),
3082 (t2SMULBT rGPR:$Rn, rGPR:$Rm)>;
3083 def : Thumb2DSPPat<(mul (sext_top_16 rGPR:$Rn), sext_16_node:$Rm),
3084 (t2SMULTB rGPR:$Rn, rGPR:$Rm)>;
3086 def : Thumb2DSPPat<(int_arm_smulbb rGPR:$Rn, rGPR:$Rm),
3087 (t2SMULBB rGPR:$Rn, rGPR:$Rm)>;
3088 def : Thumb2DSPPat<(int_arm_smulbt rGPR:$Rn, rGPR:$Rm),
3089 (t2SMULBT rGPR:$Rn, rGPR:$Rm)>;
3090 def : Thumb2DSPPat<(int_arm_smultb rGPR:$Rn, rGPR:$Rm),
3091 (t2SMULTB rGPR:$Rn, rGPR:$Rm)>;
3092 def : Thumb2DSPPat<(int_arm_smultt rGPR:$Rn, rGPR:$Rm),
3093 (t2SMULTT rGPR:$Rn, rGPR:$Rm)>;
3094 def : Thumb2DSPPat<(int_arm_smulwb rGPR:$Rn, rGPR:$Rm),
3095 (t2SMULWB rGPR:$Rn, rGPR:$Rm)>;
3096 def : Thumb2DSPPat<(int_arm_smulwt rGPR:$Rn, rGPR:$Rm),
3097 (t2SMULWT rGPR:$Rn, rGPR:$Rm)>;
3099 class T2FourRegSMLA<bits<3> op22_20, bits<2> op5_4, string opc,
3101 : T2FourReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMUL16,
3102 opc, "\t$Rd, $Rn, $Rm, $Ra", pattern>,
3103 Requires<[IsThumb2, HasDSP, UseMulOps]>,
3104 Sched<[WriteMAC16, ReadMUL, ReadMUL, ReadMAC]> {
3105 let Inst{31-27} = 0b11111;
3106 let Inst{26-23} = 0b0110;
3107 let Inst{22-20} = op22_20;
3108 let Inst{7-6} = 0b00;
3109 let Inst{5-4} = op5_4;
3112 def t2SMLABB : T2FourRegSMLA<0b001, 0b00, "smlabb",
3113 [(set rGPR:$Rd, (add rGPR:$Ra, (bb_mul rGPR:$Rn, rGPR:$Rm)))]>;
3114 def t2SMLABT : T2FourRegSMLA<0b001, 0b01, "smlabt",
3115 [(set rGPR:$Rd, (add rGPR:$Ra, (bt_mul rGPR:$Rn, rGPR:$Rm)))]>;
3116 def t2SMLATB : T2FourRegSMLA<0b001, 0b10, "smlatb",
3117 [(set rGPR:$Rd, (add rGPR:$Ra, (tb_mul rGPR:$Rn, rGPR:$Rm)))]>;
3118 def t2SMLATT : T2FourRegSMLA<0b001, 0b11, "smlatt",
3119 [(set rGPR:$Rd, (add rGPR:$Ra, (tt_mul rGPR:$Rn, rGPR:$Rm)))]>;
3120 def t2SMLAWB : T2FourRegSMLA<0b011, 0b00, "smlawb",
3121 [(set rGPR:$Rd, (add rGPR:$Ra, (ARMsmulwb rGPR:$Rn, rGPR:$Rm)))]>;
3122 def t2SMLAWT : T2FourRegSMLA<0b011, 0b01, "smlawt",
3123 [(set rGPR:$Rd, (add rGPR:$Ra, (ARMsmulwt rGPR:$Rn, rGPR:$Rm)))]>;
3125 def : Thumb2DSPMulPat<(add rGPR:$Ra, (mul sext_16_node:$Rn, sext_16_node:$Rm)),
3126 (t2SMLABB rGPR:$Rn, rGPR:$Rm, rGPR:$Ra)>;
3127 def : Thumb2DSPMulPat<(add rGPR:$Ra, (mul sext_16_node:$Rn,
3128 (sext_bottom_16 rGPR:$Rm))),
3129 (t2SMLABB rGPR:$Rn, rGPR:$Rm, rGPR:$Ra)>;
3130 def : Thumb2DSPMulPat<(add rGPR:$Ra, (mul sext_16_node:$Rn,
3131 (sext_top_16 rGPR:$Rm))),
3132 (t2SMLABT rGPR:$Rn, rGPR:$Rm, rGPR:$Ra)>;
3133 def : Thumb2DSPMulPat<(add rGPR:$Ra, (mul (sext_top_16 rGPR:$Rn),
3135 (t2SMLATB rGPR:$Rn, rGPR:$Rm, rGPR:$Ra)>;
3137 def : Thumb2DSPPat<(int_arm_smlabb GPR:$a, GPR:$b, GPR:$acc),
3138 (t2SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
3139 def : Thumb2DSPPat<(int_arm_smlabt GPR:$a, GPR:$b, GPR:$acc),
3140 (t2SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
3141 def : Thumb2DSPPat<(int_arm_smlatb GPR:$a, GPR:$b, GPR:$acc),
3142 (t2SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
3143 def : Thumb2DSPPat<(int_arm_smlatt GPR:$a, GPR:$b, GPR:$acc),
3144 (t2SMLATT GPR:$a, GPR:$b, GPR:$acc)>;
3145 def : Thumb2DSPPat<(int_arm_smlawb GPR:$a, GPR:$b, GPR:$acc),
3146 (t2SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
3147 def : Thumb2DSPPat<(int_arm_smlawt GPR:$a, GPR:$b, GPR:$acc),
3148 (t2SMLAWT GPR:$a, GPR:$b, GPR:$acc)>;
3150 // Halfword multiple accumulate long: SMLAL<x><y>
3151 def t2SMLALBB : T2MlaLong<0b100, 0b1000, "smlalbb">,
3152 Requires<[IsThumb2, HasDSP]>;
3153 def t2SMLALBT : T2MlaLong<0b100, 0b1001, "smlalbt">,
3154 Requires<[IsThumb2, HasDSP]>;
3155 def t2SMLALTB : T2MlaLong<0b100, 0b1010, "smlaltb">,
3156 Requires<[IsThumb2, HasDSP]>;
3157 def t2SMLALTT : T2MlaLong<0b100, 0b1011, "smlaltt">,
3158 Requires<[IsThumb2, HasDSP]>;
3160 def : Thumb2DSPPat<(ARMsmlalbb GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi),
3161 (t2SMLALBB $Rn, $Rm, $RLo, $RHi)>;
3162 def : Thumb2DSPPat<(ARMsmlalbt GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi),
3163 (t2SMLALBT $Rn, $Rm, $RLo, $RHi)>;
3164 def : Thumb2DSPPat<(ARMsmlaltb GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi),
3165 (t2SMLALTB $Rn, $Rm, $RLo, $RHi)>;
3166 def : Thumb2DSPPat<(ARMsmlaltt GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi),
3167 (t2SMLALTT $Rn, $Rm, $RLo, $RHi)>;
3169 class T2DualHalfMul<bits<3> op22_20, bits<4> op7_4, string opc,
3170 Intrinsic intrinsic>
3171 : T2ThreeReg_mac<0, op22_20, op7_4,
3173 (ins rGPR:$Rn, rGPR:$Rm),
3174 IIC_iMAC32, opc, "\t$Rd, $Rn, $Rm",
3175 [(set rGPR:$Rd, (intrinsic rGPR:$Rn, rGPR:$Rm))]>,
3176 Requires<[IsThumb2, HasDSP]>,
3177 Sched<[WriteMAC32, ReadMUL, ReadMUL, ReadMAC]> {
3178 let Inst{15-12} = 0b1111;
3181 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
3182 def t2SMUAD: T2DualHalfMul<0b010, 0b0000, "smuad", int_arm_smuad>;
3183 def t2SMUADX: T2DualHalfMul<0b010, 0b0001, "smuadx", int_arm_smuadx>;
3184 def t2SMUSD: T2DualHalfMul<0b100, 0b0000, "smusd", int_arm_smusd>;
3185 def t2SMUSDX: T2DualHalfMul<0b100, 0b0001, "smusdx", int_arm_smusdx>;
3187 class T2DualHalfMulAdd<bits<3> op22_20, bits<4> op7_4, string opc,
3188 Intrinsic intrinsic>
3189 : T2FourReg_mac<0, op22_20, op7_4,
3191 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra),
3192 IIC_iMAC32, opc, "\t$Rd, $Rn, $Rm, $Ra",
3193 [(set rGPR:$Rd, (intrinsic rGPR:$Rn, rGPR:$Rm, rGPR:$Ra))]>,
3194 Requires<[IsThumb2, HasDSP]>;
3196 def t2SMLAD : T2DualHalfMulAdd<0b010, 0b0000, "smlad", int_arm_smlad>;
3197 def t2SMLADX : T2DualHalfMulAdd<0b010, 0b0001, "smladx", int_arm_smladx>;
3198 def t2SMLSD : T2DualHalfMulAdd<0b100, 0b0000, "smlsd", int_arm_smlsd>;
3199 def t2SMLSDX : T2DualHalfMulAdd<0b100, 0b0001, "smlsdx", int_arm_smlsdx>;
3201 class T2DualHalfMulAddLong<bits<3> op22_20, bits<4> op7_4, string opc>
3202 : T2FourReg_mac<1, op22_20, op7_4,
3203 (outs rGPR:$Ra, rGPR:$Rd),
3204 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi),
3205 IIC_iMAC64, opc, "\t$Ra, $Rd, $Rn, $Rm", []>,
3206 RegConstraint<"$Ra = $RLo, $Rd = $RHi">,
3207 Requires<[IsThumb2, HasDSP]>,
3208 Sched<[WriteMAC64Lo, WriteMAC64Hi, ReadMUL, ReadMUL, ReadMAC, ReadMAC]>;
3210 def t2SMLALD : T2DualHalfMulAddLong<0b100, 0b1100, "smlald">;
3211 def t2SMLALDX : T2DualHalfMulAddLong<0b100, 0b1101, "smlaldx">;
3212 def t2SMLSLD : T2DualHalfMulAddLong<0b101, 0b1100, "smlsld">;
3213 def t2SMLSLDX : T2DualHalfMulAddLong<0b101, 0b1101, "smlsldx">;
3215 def : Thumb2DSPPat<(ARMSmlald rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi),
3216 (t2SMLALD rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi)>;
3217 def : Thumb2DSPPat<(ARMSmlaldx rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi),
3218 (t2SMLALDX rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi)>;
3219 def : Thumb2DSPPat<(ARMSmlsld rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi),
3220 (t2SMLSLD rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi)>;
3221 def : Thumb2DSPPat<(ARMSmlsldx rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi),
3222 (t2SMLSLDX rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi)>;
3224 //===----------------------------------------------------------------------===//
3225 // Division Instructions.
3226 // Signed and unsigned division on v7-M
3228 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV,
3229 "sdiv", "\t$Rd, $Rn, $Rm",
3230 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
3231 Requires<[HasDivideInThumb, IsThumb, HasV8MBaseline]>,
3233 let Inst{31-27} = 0b11111;
3234 let Inst{26-21} = 0b011100;
3236 let Inst{15-12} = 0b1111;
3237 let Inst{7-4} = 0b1111;
3240 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV,
3241 "udiv", "\t$Rd, $Rn, $Rm",
3242 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
3243 Requires<[HasDivideInThumb, IsThumb, HasV8MBaseline]>,
3245 let Inst{31-27} = 0b11111;
3246 let Inst{26-21} = 0b011101;
3248 let Inst{15-12} = 0b1111;
3249 let Inst{7-4} = 0b1111;
3252 //===----------------------------------------------------------------------===//
3253 // Misc. Arithmetic Instructions.
3256 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
3257 InstrItinClass itin, string opc, string asm, list<dag> pattern>
3258 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
3259 let Inst{31-27} = 0b11111;
3260 let Inst{26-22} = 0b01010;
3261 let Inst{21-20} = op1;
3262 let Inst{15-12} = 0b1111;
3263 let Inst{7-6} = 0b10;
3264 let Inst{5-4} = op2;
3268 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
3269 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>,
3272 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
3273 "rbit", "\t$Rd, $Rm",
3274 [(set rGPR:$Rd, (bitreverse rGPR:$Rm))]>,
3277 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
3278 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>,
3281 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
3282 "rev16", ".w\t$Rd, $Rm",
3283 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>,
3286 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
3287 "revsh", ".w\t$Rd, $Rm",
3288 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>,
3291 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
3292 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
3293 (t2REVSH rGPR:$Rm)>;
3295 def t2PKHBT : T2ThreeReg<
3296 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_lsl_amt:$sh),
3297 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
3298 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
3299 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
3301 Requires<[HasDSP, IsThumb2]>,
3302 Sched<[WriteALUsi, ReadALU]> {
3303 let Inst{31-27} = 0b11101;
3304 let Inst{26-25} = 0b01;
3305 let Inst{24-20} = 0b01100;
3306 let Inst{5} = 0; // BT form
3310 let Inst{14-12} = sh{4-2};
3311 let Inst{7-6} = sh{1-0};
3314 // Alternate cases for PKHBT where identities eliminate some nodes.
3315 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
3316 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
3317 Requires<[HasDSP, IsThumb2]>;
3318 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
3319 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
3320 Requires<[HasDSP, IsThumb2]>;
3322 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
3323 // will match the pattern below.
3324 def t2PKHTB : T2ThreeReg<
3325 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_asr_amt:$sh),
3326 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
3327 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
3328 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
3330 Requires<[HasDSP, IsThumb2]>,
3331 Sched<[WriteALUsi, ReadALU]> {
3332 let Inst{31-27} = 0b11101;
3333 let Inst{26-25} = 0b01;
3334 let Inst{24-20} = 0b01100;
3335 let Inst{5} = 1; // TB form
3339 let Inst{14-12} = sh{4-2};
3340 let Inst{7-6} = sh{1-0};
3343 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
3344 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
3345 // We also can not replace a srl (17..31) by an arithmetic shift we would use in
3346 // pkhtb src1, src2, asr (17..31).
3347 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16:$sh)),
3348 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16:$sh)>,
3349 Requires<[HasDSP, IsThumb2]>;
3350 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (sra rGPR:$src2, imm16_31:$sh)),
3351 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
3352 Requires<[HasDSP, IsThumb2]>;
3353 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
3354 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
3355 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
3356 Requires<[HasDSP, IsThumb2]>;
3358 //===----------------------------------------------------------------------===//
3359 // CRC32 Instructions
3362 // + CRC32{B,H,W} 0x04C11DB7
3363 // + CRC32C{B,H,W} 0x1EDC6F41
3366 class T2I_crc32<bit C, bits<2> sz, string suffix, SDPatternOperator builtin>
3367 : T2ThreeRegNoP<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), NoItinerary,
3368 !strconcat("crc32", suffix, "\t$Rd, $Rn, $Rm"),
3369 [(set rGPR:$Rd, (builtin rGPR:$Rn, rGPR:$Rm))]>,
3370 Requires<[IsThumb2, HasV8, HasCRC]> {
3371 let Inst{31-27} = 0b11111;
3372 let Inst{26-21} = 0b010110;
3374 let Inst{15-12} = 0b1111;
3375 let Inst{7-6} = 0b10;
3379 def t2CRC32B : T2I_crc32<0, 0b00, "b", int_arm_crc32b>;
3380 def t2CRC32CB : T2I_crc32<1, 0b00, "cb", int_arm_crc32cb>;
3381 def t2CRC32H : T2I_crc32<0, 0b01, "h", int_arm_crc32h>;
3382 def t2CRC32CH : T2I_crc32<1, 0b01, "ch", int_arm_crc32ch>;
3383 def t2CRC32W : T2I_crc32<0, 0b10, "w", int_arm_crc32w>;
3384 def t2CRC32CW : T2I_crc32<1, 0b10, "cw", int_arm_crc32cw>;
3386 //===----------------------------------------------------------------------===//
3387 // Comparison Instructions...
3389 defm t2CMP : T2I_cmp_irs<0b1101, "cmp", GPRnopc,
3390 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi, ARMcmp>;
3392 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm),
3393 (t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>;
3394 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, rGPR:$rhs),
3395 (t2CMPrr GPRnopc:$lhs, rGPR:$rhs)>;
3396 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg_oneuse:$rhs),
3397 (t2CMPrs GPRnopc:$lhs, t2_so_reg_oneuse:$rhs)>;
3399 let isCompare = 1, Defs = [CPSR] in {
3401 def t2CMNri : T2OneRegCmpImm<
3402 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iCMPi,
3403 "cmn", ".w\t$Rn, $imm",
3404 [(ARMcmn GPRnopc:$Rn, (ineg t2_so_imm:$imm))]>,
3405 Sched<[WriteCMP, ReadALU]> {
3406 let Inst{31-27} = 0b11110;
3408 let Inst{24-21} = 0b1000;
3409 let Inst{20} = 1; // The S bit.
3411 let Inst{11-8} = 0b1111; // Rd
3414 def t2CMNzrr : T2TwoRegCmp<
3415 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iCMPr,
3416 "cmn", ".w\t$Rn, $Rm",
3417 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
3418 GPRnopc:$Rn, rGPR:$Rm)]>, Sched<[WriteCMP, ReadALU, ReadALU]> {
3419 let Inst{31-27} = 0b11101;
3420 let Inst{26-25} = 0b01;
3421 let Inst{24-21} = 0b1000;
3422 let Inst{20} = 1; // The S bit.
3423 let Inst{14-12} = 0b000; // imm3
3424 let Inst{11-8} = 0b1111; // Rd
3425 let Inst{7-6} = 0b00; // imm2
3426 let Inst{5-4} = 0b00; // type
3429 def t2CMNzrs : T2OneRegCmpShiftedReg<
3430 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), IIC_iCMPsi,
3431 "cmn", ".w\t$Rn, $ShiftedRm",
3432 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
3433 GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]>,
3434 Sched<[WriteCMPsi, ReadALU, ReadALU]> {
3435 let Inst{31-27} = 0b11101;
3436 let Inst{26-25} = 0b01;
3437 let Inst{24-21} = 0b1000;
3438 let Inst{20} = 1; // The S bit.
3439 let Inst{11-8} = 0b1111; // Rd
3443 // Assembler aliases w/o the ".w" suffix.
3444 // No alias here for 'rr' version as not all instantiations of this multiclass
3445 // want one (CMP in particular, does not).
3446 def : t2InstAlias<"cmn${p} $Rn, $imm",
3447 (t2CMNri GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>;
3448 def : t2InstAlias<"cmn${p} $Rn, $shift",
3449 (t2CMNzrs GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>;
3451 def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
3452 (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
3454 def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
3455 (t2CMNri GPRnopc:$src, t2_so_imm_neg:$imm)>;
3457 defm t2TST : T2I_cmp_irs<0b0000, "tst", rGPR,
3458 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
3459 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
3460 defm t2TEQ : T2I_cmp_irs<0b0100, "teq", rGPR,
3461 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
3462 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
3464 // Conditional moves
3465 let hasSideEffects = 0 in {
3467 let isCommutable = 1, isSelect = 1 in
3468 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
3469 (ins rGPR:$false, rGPR:$Rm, cmovpred:$p),
3471 [(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm,
3473 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
3475 let isMoveImm = 1 in
3477 : t2PseudoInst<(outs rGPR:$Rd),
3478 (ins rGPR:$false, t2_so_imm:$imm, cmovpred:$p),
3480 [(set rGPR:$Rd, (ARMcmov rGPR:$false,t2_so_imm:$imm,
3482 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
3484 let isCodeGenOnly = 1 in {
3485 let isMoveImm = 1 in
3487 : t2PseudoInst<(outs rGPR:$Rd),
3488 (ins rGPR:$false, imm0_65535_expr:$imm, cmovpred:$p),
3490 [(set rGPR:$Rd, (ARMcmov rGPR:$false, imm0_65535:$imm,
3492 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
3494 let isMoveImm = 1 in
3496 : t2PseudoInst<(outs rGPR:$Rd),
3497 (ins rGPR:$false, t2_so_imm:$imm, cmovpred:$p),
3500 (ARMcmov rGPR:$false, t2_so_imm_not:$imm,
3502 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
3504 class MOVCCShPseudo<SDPatternOperator opnode, Operand ty>
3505 : t2PseudoInst<(outs rGPR:$Rd),
3506 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm, cmovpred:$p),
3508 [(set rGPR:$Rd, (ARMcmov rGPR:$false,
3509 (opnode rGPR:$Rm, (i32 ty:$imm)),
3511 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
3513 def t2MOVCClsl : MOVCCShPseudo<shl, imm0_31>;
3514 def t2MOVCClsr : MOVCCShPseudo<srl, imm_sr>;
3515 def t2MOVCCasr : MOVCCShPseudo<sra, imm_sr>;
3516 def t2MOVCCror : MOVCCShPseudo<rotr, imm0_31>;
3518 let isMoveImm = 1 in
3520 : t2PseudoInst<(outs rGPR:$dst),
3521 (ins rGPR:$false, i32imm:$src, cmovpred:$p),
3523 [(set rGPR:$dst, (ARMcmov rGPR:$false, imm:$src,
3525 RegConstraint<"$false = $dst">;
3526 } // isCodeGenOnly = 1
3530 //===----------------------------------------------------------------------===//
3531 // Atomic operations intrinsics
3534 // memory barriers protect the atomic sequences
3535 let hasSideEffects = 1 in {
3536 def t2DMB : T2I<(outs), (ins memb_opt:$opt), NoItinerary,
3537 "dmb", "\t$opt", [(int_arm_dmb (i32 imm0_15:$opt))]>,
3538 Requires<[IsThumb, HasDB]> {
3540 let Inst{31-4} = 0xf3bf8f5;
3541 let Inst{3-0} = opt;
3544 def t2DSB : T2I<(outs), (ins memb_opt:$opt), NoItinerary,
3545 "dsb", "\t$opt", [(int_arm_dsb (i32 imm0_15:$opt))]>,
3546 Requires<[IsThumb, HasDB]> {
3548 let Inst{31-4} = 0xf3bf8f4;
3549 let Inst{3-0} = opt;
3552 def t2ISB : T2I<(outs), (ins instsyncb_opt:$opt), NoItinerary,
3553 "isb", "\t$opt", [(int_arm_isb (i32 imm0_15:$opt))]>,
3554 Requires<[IsThumb, HasDB]> {
3556 let Inst{31-4} = 0xf3bf8f6;
3557 let Inst{3-0} = opt;
3560 let hasNoSchedulingInfo = 1 in
3561 def t2TSB : T2I<(outs), (ins tsb_opt:$opt), NoItinerary,
3562 "tsb", "\t$opt", []>, Requires<[IsThumb, HasV8_4a]> {
3563 let Inst{31-0} = 0xf3af8012;
3567 // Armv8.5-A speculation barrier
3568 def t2SB : Thumb2XI<(outs), (ins), AddrModeNone, 4, NoItinerary, "sb", "", []>,
3569 Requires<[IsThumb2, HasSB]>, Sched<[]> {
3570 let Inst{31-0} = 0xf3bf8f70;
3571 let Unpredictable = 0x000f2f0f;
3572 let hasSideEffects = 1;
3575 class T2I_ldrex<bits<4> opcod, dag oops, dag iops, AddrMode am, int sz,
3576 InstrItinClass itin, string opc, string asm, string cstr,
3577 list<dag> pattern, bits<4> rt2 = 0b1111>
3578 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3579 let Inst{31-27} = 0b11101;
3580 let Inst{26-20} = 0b0001101;
3581 let Inst{11-8} = rt2;
3582 let Inst{7-4} = opcod;
3583 let Inst{3-0} = 0b1111;
3587 let Inst{19-16} = addr;
3588 let Inst{15-12} = Rt;
3590 class T2I_strex<bits<4> opcod, dag oops, dag iops, AddrMode am, int sz,
3591 InstrItinClass itin, string opc, string asm, string cstr,
3592 list<dag> pattern, bits<4> rt2 = 0b1111>
3593 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3594 let Inst{31-27} = 0b11101;
3595 let Inst{26-20} = 0b0001100;
3596 let Inst{11-8} = rt2;
3597 let Inst{7-4} = opcod;
3603 let Inst{19-16} = addr;
3604 let Inst{15-12} = Rt;
3607 let mayLoad = 1 in {
3608 def t2LDREXB : T2I_ldrex<0b0100, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3609 AddrModeNone, 4, NoItinerary,
3610 "ldrexb", "\t$Rt, $addr", "",
3611 [(set rGPR:$Rt, (ldrex_1 addr_offset_none:$addr))]>,
3612 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteLd]>;
3613 def t2LDREXH : T2I_ldrex<0b0101, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3614 AddrModeNone, 4, NoItinerary,
3615 "ldrexh", "\t$Rt, $addr", "",
3616 [(set rGPR:$Rt, (ldrex_2 addr_offset_none:$addr))]>,
3617 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteLd]>;
3618 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_imm0_1020s4:$addr),
3619 AddrModeT2_ldrex, 4, NoItinerary,
3620 "ldrex", "\t$Rt, $addr", "",
3621 [(set rGPR:$Rt, (ldrex_4 t2addrmode_imm0_1020s4:$addr))]>,
3622 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteLd]> {
3625 let Inst{31-27} = 0b11101;
3626 let Inst{26-20} = 0b0000101;
3627 let Inst{19-16} = addr{11-8};
3628 let Inst{15-12} = Rt;
3629 let Inst{11-8} = 0b1111;
3630 let Inst{7-0} = addr{7-0};
3632 let hasExtraDefRegAllocReq = 1 in
3633 def t2LDREXD : T2I_ldrex<0b0111, (outs rGPR:$Rt, rGPR:$Rt2),
3634 (ins addr_offset_none:$addr),
3635 AddrModeNone, 4, NoItinerary,
3636 "ldrexd", "\t$Rt, $Rt2, $addr", "",
3638 Requires<[IsThumb2, IsNotMClass]>, Sched<[WriteLd]> {
3640 let Inst{11-8} = Rt2;
3642 def t2LDAEXB : T2I_ldrex<0b1100, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3643 AddrModeNone, 4, NoItinerary,
3644 "ldaexb", "\t$Rt, $addr", "",
3645 [(set rGPR:$Rt, (ldaex_1 addr_offset_none:$addr))]>,
3646 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>, Sched<[WriteLd]>;
3647 def t2LDAEXH : T2I_ldrex<0b1101, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3648 AddrModeNone, 4, NoItinerary,
3649 "ldaexh", "\t$Rt, $addr", "",
3650 [(set rGPR:$Rt, (ldaex_2 addr_offset_none:$addr))]>,
3651 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>, Sched<[WriteLd]>;
3652 def t2LDAEX : Thumb2I<(outs rGPR:$Rt), (ins addr_offset_none:$addr),
3653 AddrModeNone, 4, NoItinerary,
3654 "ldaex", "\t$Rt, $addr", "",
3655 [(set rGPR:$Rt, (ldaex_4 addr_offset_none:$addr))]>,
3656 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>, Sched<[WriteLd]> {
3659 let Inst{31-27} = 0b11101;
3660 let Inst{26-20} = 0b0001101;
3661 let Inst{19-16} = addr;
3662 let Inst{15-12} = Rt;
3663 let Inst{11-8} = 0b1111;
3664 let Inst{7-0} = 0b11101111;
3666 let hasExtraDefRegAllocReq = 1 in
3667 def t2LDAEXD : T2I_ldrex<0b1111, (outs rGPR:$Rt, rGPR:$Rt2),
3668 (ins addr_offset_none:$addr),
3669 AddrModeNone, 4, NoItinerary,
3670 "ldaexd", "\t$Rt, $Rt2, $addr", "",
3671 [], {?, ?, ?, ?}>, Requires<[IsThumb,
3672 HasAcquireRelease, HasV7Clrex, IsNotMClass]>, Sched<[WriteLd]> {
3674 let Inst{11-8} = Rt2;
3680 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
3681 def t2STREXB : T2I_strex<0b0100, (outs rGPR:$Rd),
3682 (ins rGPR:$Rt, addr_offset_none:$addr),
3683 AddrModeNone, 4, NoItinerary,
3684 "strexb", "\t$Rd, $Rt, $addr", "",
3686 (strex_1 rGPR:$Rt, addr_offset_none:$addr))]>,
3687 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteST]>;
3688 def t2STREXH : T2I_strex<0b0101, (outs rGPR:$Rd),
3689 (ins rGPR:$Rt, addr_offset_none:$addr),
3690 AddrModeNone, 4, NoItinerary,
3691 "strexh", "\t$Rd, $Rt, $addr", "",
3693 (strex_2 rGPR:$Rt, addr_offset_none:$addr))]>,
3694 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteST]>;
3696 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt,
3697 t2addrmode_imm0_1020s4:$addr),
3698 AddrModeT2_ldrex, 4, NoItinerary,
3699 "strex", "\t$Rd, $Rt, $addr", "",
3701 (strex_4 rGPR:$Rt, t2addrmode_imm0_1020s4:$addr))]>,
3702 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteST]> {
3706 let Inst{31-27} = 0b11101;
3707 let Inst{26-20} = 0b0000100;
3708 let Inst{19-16} = addr{11-8};
3709 let Inst{15-12} = Rt;
3710 let Inst{11-8} = Rd;
3711 let Inst{7-0} = addr{7-0};
3713 let hasExtraSrcRegAllocReq = 1 in
3714 def t2STREXD : T2I_strex<0b0111, (outs rGPR:$Rd),
3715 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr),
3716 AddrModeNone, 4, NoItinerary,
3717 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
3719 Requires<[IsThumb2, IsNotMClass]>, Sched<[WriteST]> {
3721 let Inst{11-8} = Rt2;
3723 def t2STLEXB : T2I_strex<0b1100, (outs rGPR:$Rd),
3724 (ins rGPR:$Rt, addr_offset_none:$addr),
3725 AddrModeNone, 4, NoItinerary,
3726 "stlexb", "\t$Rd, $Rt, $addr", "",
3728 (stlex_1 rGPR:$Rt, addr_offset_none:$addr))]>,
3729 Requires<[IsThumb, HasAcquireRelease,
3730 HasV7Clrex]>, Sched<[WriteST]>;
3732 def t2STLEXH : T2I_strex<0b1101, (outs rGPR:$Rd),
3733 (ins rGPR:$Rt, addr_offset_none:$addr),
3734 AddrModeNone, 4, NoItinerary,
3735 "stlexh", "\t$Rd, $Rt, $addr", "",
3737 (stlex_2 rGPR:$Rt, addr_offset_none:$addr))]>,
3738 Requires<[IsThumb, HasAcquireRelease,
3739 HasV7Clrex]>, Sched<[WriteST]>;
3741 def t2STLEX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt,
3742 addr_offset_none:$addr),
3743 AddrModeNone, 4, NoItinerary,
3744 "stlex", "\t$Rd, $Rt, $addr", "",
3746 (stlex_4 rGPR:$Rt, addr_offset_none:$addr))]>,
3747 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>,
3752 let Inst{31-27} = 0b11101;
3753 let Inst{26-20} = 0b0001100;
3754 let Inst{19-16} = addr;
3755 let Inst{15-12} = Rt;
3756 let Inst{11-4} = 0b11111110;
3759 let hasExtraSrcRegAllocReq = 1 in
3760 def t2STLEXD : T2I_strex<0b1111, (outs rGPR:$Rd),
3761 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr),
3762 AddrModeNone, 4, NoItinerary,
3763 "stlexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
3764 {?, ?, ?, ?}>, Requires<[IsThumb, HasAcquireRelease,
3765 HasV7Clrex, IsNotMClass]>, Sched<[WriteST]> {
3767 let Inst{11-8} = Rt2;
3771 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", [(int_arm_clrex)]>,
3772 Requires<[IsThumb, HasV7Clrex]> {
3773 let Inst{31-16} = 0xf3bf;
3774 let Inst{15-14} = 0b10;
3777 let Inst{11-8} = 0b1111;
3778 let Inst{7-4} = 0b0010;
3779 let Inst{3-0} = 0b1111;
3782 def : T2Pat<(and (ldrex_1 addr_offset_none:$addr), 0xff),
3783 (t2LDREXB addr_offset_none:$addr)>,
3784 Requires<[IsThumb, HasV8MBaseline]>;
3785 def : T2Pat<(and (ldrex_2 addr_offset_none:$addr), 0xffff),
3786 (t2LDREXH addr_offset_none:$addr)>,
3787 Requires<[IsThumb, HasV8MBaseline]>;
3788 def : T2Pat<(strex_1 (and GPR:$Rt, 0xff), addr_offset_none:$addr),
3789 (t2STREXB GPR:$Rt, addr_offset_none:$addr)>,
3790 Requires<[IsThumb, HasV8MBaseline]>;
3791 def : T2Pat<(strex_2 (and GPR:$Rt, 0xffff), addr_offset_none:$addr),
3792 (t2STREXH GPR:$Rt, addr_offset_none:$addr)>,
3793 Requires<[IsThumb, HasV8MBaseline]>;
3795 def : T2Pat<(and (ldaex_1 addr_offset_none:$addr), 0xff),
3796 (t2LDAEXB addr_offset_none:$addr)>,
3797 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>;
3798 def : T2Pat<(and (ldaex_2 addr_offset_none:$addr), 0xffff),
3799 (t2LDAEXH addr_offset_none:$addr)>,
3800 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>;
3801 def : T2Pat<(stlex_1 (and GPR:$Rt, 0xff), addr_offset_none:$addr),
3802 (t2STLEXB GPR:$Rt, addr_offset_none:$addr)>,
3803 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>;
3804 def : T2Pat<(stlex_2 (and GPR:$Rt, 0xffff), addr_offset_none:$addr),
3805 (t2STLEXH GPR:$Rt, addr_offset_none:$addr)>,
3806 Requires<[IsThumb, HasAcquireRelease, HasV7Clrex]>;
3808 //===----------------------------------------------------------------------===//
3809 // SJLJ Exception handling intrinsics
3810 // eh_sjlj_setjmp() is an instruction sequence to store the return
3811 // address and save #0 in R0 for the non-longjmp case.
3812 // Since by its nature we may be coming from some other function to get
3813 // here, and we're using the stack frame for the containing function to
3814 // save/restore registers, we can't keep anything live in regs across
3815 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
3816 // when we get here from a longjmp(). We force everything out of registers
3817 // except for our own input by listing the relevant registers in Defs. By
3818 // doing so, we also cause the prologue/epilogue code to actively preserve
3819 // all of the callee-saved registers, which is exactly what we want.
3820 // $val is a scratch register for our use.
3822 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
3823 Q0, Q1, Q2, Q3, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15],
3824 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3825 usesCustomInserter = 1 in {
3826 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3827 AddrModeNone, 0, NoItinerary, "", "",
3828 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3829 Requires<[IsThumb2, HasVFP2]>;
3833 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
3834 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3835 usesCustomInserter = 1 in {
3836 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3837 AddrModeNone, 0, NoItinerary, "", "",
3838 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3839 Requires<[IsThumb2, NoVFP]>;
3843 //===----------------------------------------------------------------------===//
3844 // Control-Flow Instructions
3847 // FIXME: remove when we have a way to marking a MI with these properties.
3848 // FIXME: Should pc be an implicit operand like PICADD, etc?
3849 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
3850 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
3851 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
3852 reglist:$regs, variable_ops),
3853 4, IIC_iLoad_mBr, [],
3854 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
3855 RegConstraint<"$Rn = $wb">;
3857 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
3858 let isPredicable = 1 in
3859 def t2B : T2I<(outs), (ins thumb_br_target:$target), IIC_Br,
3861 [(br bb:$target)]>, Sched<[WriteBr]>,
3862 Requires<[IsThumb, HasV8MBaseline]> {
3863 let Inst{31-27} = 0b11110;
3864 let Inst{15-14} = 0b10;
3868 let Inst{26} = target{23};
3869 let Inst{13} = target{22};
3870 let Inst{11} = target{21};
3871 let Inst{25-16} = target{20-11};
3872 let Inst{10-0} = target{10-0};
3873 let DecoderMethod = "DecodeT2BInstruction";
3874 let AsmMatchConverter = "cvtThumbBranches";
3877 let Size = 4, isNotDuplicable = 1, isBranch = 1, isTerminator = 1,
3878 isBarrier = 1, isIndirectBranch = 1 in {
3880 // available in both v8-M.Baseline and Thumb2 targets
3881 def t2BR_JT : t2basePseudoInst<(outs),
3882 (ins GPR:$target, GPR:$index, i32imm:$jt),
3884 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt)]>,
3887 // FIXME: Add a case that can be predicated.
3888 def t2TBB_JT : t2PseudoInst<(outs),
3889 (ins GPR:$base, GPR:$index, i32imm:$jt, i32imm:$pclbl), 0, IIC_Br, []>,
3892 def t2TBH_JT : t2PseudoInst<(outs),
3893 (ins GPR:$base, GPR:$index, i32imm:$jt, i32imm:$pclbl), 0, IIC_Br, []>,
3896 def t2TBB : T2I<(outs), (ins addrmode_tbb:$addr), IIC_Br,
3897 "tbb", "\t$addr", []>, Sched<[WriteBrTbl]> {
3900 let Inst{31-20} = 0b111010001101;
3901 let Inst{19-16} = Rn;
3902 let Inst{15-5} = 0b11110000000;
3903 let Inst{4} = 0; // B form
3906 let DecoderMethod = "DecodeThumbTableBranch";
3909 def t2TBH : T2I<(outs), (ins addrmode_tbh:$addr), IIC_Br,
3910 "tbh", "\t$addr", []>, Sched<[WriteBrTbl]> {
3913 let Inst{31-20} = 0b111010001101;
3914 let Inst{19-16} = Rn;
3915 let Inst{15-5} = 0b11110000000;
3916 let Inst{4} = 1; // H form
3919 let DecoderMethod = "DecodeThumbTableBranch";
3921 } // isNotDuplicable, isIndirectBranch
3923 } // isBranch, isTerminator, isBarrier
3925 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3926 // a two-value operand where a dag node expects ", "two operands. :(
3927 let isBranch = 1, isTerminator = 1 in
3928 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3930 [/*(ARMbrcond bb:$target, imm:$cc)*/]>, Sched<[WriteBr]> {
3931 let Inst{31-27} = 0b11110;
3932 let Inst{15-14} = 0b10;
3936 let Inst{25-22} = p;
3939 let Inst{26} = target{20};
3940 let Inst{11} = target{19};
3941 let Inst{13} = target{18};
3942 let Inst{21-16} = target{17-12};
3943 let Inst{10-0} = target{11-1};
3945 let DecoderMethod = "DecodeThumb2BCCInstruction";
3946 let AsmMatchConverter = "cvtThumbBranches";
3949 // Tail calls. The MachO version of thumb tail calls uses a t2 branch, so
3951 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3954 def tTAILJMPd: tPseudoExpand<(outs),
3955 (ins thumb_br_target:$dst, pred:$p),
3957 (t2B thumb_br_target:$dst, pred:$p)>,
3958 Requires<[IsThumb2, IsMachO]>, Sched<[WriteBr]>;
3962 let Defs = [ITSTATE] in
3963 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3964 AddrModeNone, 2, IIC_iALUx,
3965 "it$mask\t$cc", "", []>,
3966 ComplexDeprecationPredicate<"IT"> {
3967 // 16-bit instruction.
3968 let Inst{31-16} = 0x0000;
3969 let Inst{15-8} = 0b10111111;
3974 let Inst{3-0} = mask;
3976 let DecoderMethod = "DecodeIT";
3979 // Branch and Exchange Jazelle -- for disassembly only
3981 let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in
3982 def t2BXJ : T2I<(outs), (ins GPRnopc:$func), NoItinerary, "bxj", "\t$func", []>,
3983 Sched<[WriteBr]>, Requires<[IsThumb2, IsNotMClass]> {
3985 let Inst{31-27} = 0b11110;
3987 let Inst{25-20} = 0b111100;
3988 let Inst{19-16} = func;
3989 let Inst{15-0} = 0b1000111100000000;
3992 def : t2InstAlias<"bl${p}.w $func", (tBL pred:$p, thumb_bl_target:$func), 0>;
3994 // Compare and branch on zero / non-zero
3995 let isBranch = 1, isTerminator = 1 in {
3996 def tCBZ : T1I<(outs), (ins tGPR:$Rn, thumb_cb_target:$target), IIC_Br,
3997 "cbz\t$Rn, $target", []>,
3998 T1Misc<{0,0,?,1,?,?,?}>,
3999 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteBr]> {
4003 let Inst{9} = target{5};
4004 let Inst{7-3} = target{4-0};
4008 def tCBNZ : T1I<(outs), (ins tGPR:$Rn, thumb_cb_target:$target), IIC_Br,
4009 "cbnz\t$Rn, $target", []>,
4010 T1Misc<{1,0,?,1,?,?,?}>,
4011 Requires<[IsThumb, HasV8MBaseline]>, Sched<[WriteBr]> {
4015 let Inst{9} = target{5};
4016 let Inst{7-3} = target{4-0};
4022 // Change Processor State is a system instruction.
4023 // FIXME: Since the asm parser has currently no clean way to handle optional
4024 // operands, create 3 versions of the same instruction. Once there's a clean
4025 // framework to represent optional operands, change this behavior.
4026 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
4027 !strconcat("cps", asm_op), []>,
4028 Requires<[IsThumb2, IsNotMClass]> {
4034 let Inst{31-11} = 0b111100111010111110000;
4035 let Inst{10-9} = imod;
4037 let Inst{7-5} = iflags;
4038 let Inst{4-0} = mode;
4039 let DecoderMethod = "DecodeT2CPSInstruction";
4043 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
4044 "$imod\t$iflags, $mode">;
4045 let mode = 0, M = 0 in
4046 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
4047 "$imod.w\t$iflags">;
4048 let imod = 0, iflags = 0, M = 1 in
4049 def t2CPS1p : t2CPS<(ins imm0_31:$mode), "\t$mode">;
4051 def : t2InstAlias<"cps$imod.w $iflags, $mode",
4052 (t2CPS3p imod_op:$imod, iflags_op:$iflags, i32imm:$mode), 0>;
4053 def : t2InstAlias<"cps.w $mode", (t2CPS1p imm0_31:$mode), 0>;
4055 // A6.3.4 Branches and miscellaneous control
4056 // Table A6-14 Change Processor State, and hint instructions
4057 def t2HINT : T2I<(outs), (ins imm0_239:$imm), NoItinerary, "hint", ".w\t$imm",
4058 [(int_arm_hint imm0_239:$imm)]> {
4060 let Inst{31-3} = 0b11110011101011111000000000000;
4061 let Inst{7-0} = imm;
4064 def : t2InstAlias<"hint$p $imm", (t2HINT imm0_239:$imm, pred:$p), 0>;
4065 def : t2InstAlias<"nop$p.w", (t2HINT 0, pred:$p), 1>;
4066 def : t2InstAlias<"yield$p.w", (t2HINT 1, pred:$p), 1>;
4067 def : t2InstAlias<"wfe$p.w", (t2HINT 2, pred:$p), 1>;
4068 def : t2InstAlias<"wfi$p.w", (t2HINT 3, pred:$p), 1>;
4069 def : t2InstAlias<"sev$p.w", (t2HINT 4, pred:$p), 1>;
4070 def : t2InstAlias<"sevl$p.w", (t2HINT 5, pred:$p), 1> {
4071 let Predicates = [IsThumb2, HasV8];
4073 def : t2InstAlias<"esb$p.w", (t2HINT 16, pred:$p), 1> {
4074 let Predicates = [IsThumb2, HasRAS];
4076 def : t2InstAlias<"esb$p", (t2HINT 16, pred:$p), 0> {
4077 let Predicates = [IsThumb2, HasRAS];
4079 def : t2InstAlias<"csdb$p.w", (t2HINT 20, pred:$p), 0>;
4080 def : t2InstAlias<"csdb$p", (t2HINT 20, pred:$p), 1>;
4082 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt",
4083 [(int_arm_dbg imm0_15:$opt)]> {
4085 let Inst{31-20} = 0b111100111010;
4086 let Inst{19-16} = 0b1111;
4087 let Inst{15-8} = 0b10000000;
4088 let Inst{7-4} = 0b1111;
4089 let Inst{3-0} = opt;
4091 def : t2InstAlias<"dbg${p}.w $opt", (t2DBG imm0_15:$opt, pred:$p), 0>;
4093 // Secure Monitor Call is a system instruction.
4094 // Option = Inst{19-16}
4095 let isCall = 1, Uses = [SP] in
4096 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
4097 []>, Requires<[IsThumb2, HasTrustZone]> {
4098 let Inst{31-27} = 0b11110;
4099 let Inst{26-20} = 0b1111111;
4100 let Inst{15-12} = 0b1000;
4103 let Inst{19-16} = opt;
4106 class T2DCPS<bits<2> opt, string opc>
4107 : T2I<(outs), (ins), NoItinerary, opc, "", []>, Requires<[IsThumb2, HasV8]> {
4108 let Inst{31-27} = 0b11110;
4109 let Inst{26-20} = 0b1111000;
4110 let Inst{19-16} = 0b1111;
4111 let Inst{15-12} = 0b1000;
4112 let Inst{11-2} = 0b0000000000;
4113 let Inst{1-0} = opt;
4116 def t2DCPS1 : T2DCPS<0b01, "dcps1">;
4117 def t2DCPS2 : T2DCPS<0b10, "dcps2">;
4118 def t2DCPS3 : T2DCPS<0b11, "dcps3">;
4120 class T2SRS<bits<2> Op, bit W, dag oops, dag iops, InstrItinClass itin,
4121 string opc, string asm, list<dag> pattern>
4122 : T2I<oops, iops, itin, opc, asm, pattern>,
4123 Requires<[IsThumb2,IsNotMClass]> {
4125 let Inst{31-25} = 0b1110100;
4126 let Inst{24-23} = Op;
4129 let Inst{20-16} = 0b01101;
4130 let Inst{15-5} = 0b11000000000;
4131 let Inst{4-0} = mode{4-0};
4134 // Store Return State is a system instruction.
4135 def t2SRSDB_UPD : T2SRS<0b00, 1, (outs), (ins imm0_31:$mode), NoItinerary,
4136 "srsdb", "\tsp!, $mode", []>;
4137 def t2SRSDB : T2SRS<0b00, 0, (outs), (ins imm0_31:$mode), NoItinerary,
4138 "srsdb","\tsp, $mode", []>;
4139 def t2SRSIA_UPD : T2SRS<0b11, 1, (outs), (ins imm0_31:$mode), NoItinerary,
4140 "srsia","\tsp!, $mode", []>;
4141 def t2SRSIA : T2SRS<0b11, 0, (outs), (ins imm0_31:$mode), NoItinerary,
4142 "srsia","\tsp, $mode", []>;
4145 def : t2InstAlias<"srsdb${p} $mode", (t2SRSDB imm0_31:$mode, pred:$p)>;
4146 def : t2InstAlias<"srsdb${p} $mode!", (t2SRSDB_UPD imm0_31:$mode, pred:$p)>;
4148 def : t2InstAlias<"srsia${p} $mode", (t2SRSIA imm0_31:$mode, pred:$p)>;
4149 def : t2InstAlias<"srsia${p} $mode!", (t2SRSIA_UPD imm0_31:$mode, pred:$p)>;
4151 // Return From Exception is a system instruction.
4152 let isReturn = 1, isBarrier = 1, isTerminator = 1, Defs = [PC] in
4153 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
4154 string opc, string asm, list<dag> pattern>
4155 : T2I<oops, iops, itin, opc, asm, pattern>,
4156 Requires<[IsThumb2,IsNotMClass]> {
4157 let Inst{31-20} = op31_20{11-0};
4160 let Inst{19-16} = Rn;
4161 let Inst{15-0} = 0xc000;
4164 def t2RFEDBW : T2RFE<0b111010000011,
4165 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
4166 [/* For disassembly only; pattern left blank */]>;
4167 def t2RFEDB : T2RFE<0b111010000001,
4168 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
4169 [/* For disassembly only; pattern left blank */]>;
4170 def t2RFEIAW : T2RFE<0b111010011011,
4171 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
4172 [/* For disassembly only; pattern left blank */]>;
4173 def t2RFEIA : T2RFE<0b111010011001,
4174 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
4175 [/* For disassembly only; pattern left blank */]>;
4177 // B9.3.19 SUBS PC, LR, #imm (Thumb2) system instruction.
4178 // Exception return instruction is "subs pc, lr, #imm".
4179 let isReturn = 1, isBarrier = 1, isTerminator = 1, Defs = [PC] in
4180 def t2SUBS_PC_LR : T2I <(outs), (ins imm0_255:$imm), NoItinerary,
4181 "subs", "\tpc, lr, $imm",
4182 [(ARMintretflag imm0_255:$imm)]>,
4183 Requires<[IsThumb2,IsNotMClass]> {
4184 let Inst{31-8} = 0b111100111101111010001111;
4187 let Inst{7-0} = imm;
4190 // B9.3.19 SUBS PC, LR (Thumb)
4191 // In the Thumb instruction set, MOVS{<c>}{<q>} PC, LR is a pseudo-instruction
4192 // for SUBS{<c>}{<q>} PC, LR, #0.
4193 def : t2InstAlias<"movs${p}\tpc, lr", (t2SUBS_PC_LR 0, pred:$p)>;
4194 def : t2InstAlias<"movs${p}.w\tpc, lr", (t2SUBS_PC_LR 0, pred:$p)>;
4196 // ERET - Return from exception in Hypervisor mode.
4197 // B9.3.3, B9.3.20: ERET is an alias for "SUBS PC, LR, #0" in an implementation that
4198 // includes virtualization extensions.
4199 def t2ERET : InstAlias<"eret${p}", (t2SUBS_PC_LR 0, pred:$p), 1>,
4200 Requires<[IsThumb2, HasVirtualization]>;
4202 // Hypervisor Call is a system instruction.
4204 def t2HVC : T2XI <(outs), (ins imm0_65535:$imm16), IIC_Br, "hvc.w\t$imm16", []>,
4205 Requires<[IsThumb2, HasVirtualization]>, Sched<[WriteBr]> {
4207 let Inst{31-20} = 0b111101111110;
4208 let Inst{19-16} = imm16{15-12};
4209 let Inst{15-12} = 0b1000;
4210 let Inst{11-0} = imm16{11-0};
4214 // Alias for HVC without the ".w" optional width specifier
4215 def : t2InstAlias<"hvc\t$imm16", (t2HVC imm0_65535:$imm16)>;
4217 //===----------------------------------------------------------------------===//
4218 // Non-Instruction Patterns
4221 // 32-bit immediate using movw + movt.
4222 // This is a single pseudo instruction to make it re-materializable.
4223 // FIXME: Remove this when we can do generalized remat.
4224 let isReMaterializable = 1, isMoveImm = 1 in
4225 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
4226 [(set rGPR:$dst, (i32 imm:$src))]>,
4227 Requires<[IsThumb, UseMovt]>;
4229 // Pseudo instruction that combines movw + movt + add pc (if pic).
4230 // It also makes it possible to rematerialize the instructions.
4231 // FIXME: Remove this when we can do generalized remat and when machine licm
4232 // can properly the instructions.
4233 let isReMaterializable = 1 in {
4234 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
4236 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
4237 Requires<[IsThumb, HasV8MBaseline, UseMovtInPic]>;
4241 def : T2Pat<(ARMWrapperPIC tglobaltlsaddr :$dst),
4242 (t2MOV_ga_pcrel tglobaltlsaddr:$dst)>,
4243 Requires<[IsThumb2, UseMovtInPic]>;
4244 def : T2Pat<(ARMWrapper tglobaltlsaddr:$dst),
4245 (t2MOVi32imm tglobaltlsaddr:$dst)>,
4246 Requires<[IsThumb2, UseMovt]>;
4248 // ConstantPool, GlobalAddress, and JumpTable
4249 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
4250 def : T2Pat<(ARMWrapper texternalsym :$dst), (t2MOVi32imm texternalsym :$dst)>,
4251 Requires<[IsThumb, HasV8MBaseline, UseMovt]>;
4252 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
4253 Requires<[IsThumb, HasV8MBaseline, UseMovt]>;
4255 def : T2Pat<(ARMWrapperJT tjumptable:$dst), (t2LEApcrelJT tjumptable:$dst)>;
4257 // Pseudo instruction that combines ldr from constpool and add pc. This should
4258 // be expanded into two instructions late to allow if-conversion and
4260 let canFoldAsLoad = 1, isReMaterializable = 1 in
4261 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
4263 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
4265 Requires<[IsThumb2]>;
4267 // Pseudo instruction that combines movs + predicated rsbmi
4268 // to implement integer ABS
4269 let usesCustomInserter = 1, Defs = [CPSR], hasNoSchedulingInfo = 1 in {
4270 def t2ABS : PseudoInst<(outs rGPR:$dst), (ins rGPR:$src),
4271 NoItinerary, []>, Requires<[IsThumb2]>;
4274 //===----------------------------------------------------------------------===//
4275 // Coprocessor load/store -- for disassembly only
4277 class T2CI<bits<4> op31_28, dag oops, dag iops, string opc, string asm,
4278 list<dag> pattern, AddrMode am = AddrModeNone>
4279 : T2I<oops, iops, NoItinerary, opc, asm, pattern, am> {
4280 let Inst{31-28} = op31_28;
4281 let Inst{27-25} = 0b110;
4284 multiclass t2LdStCop<bits<4> op31_28, bit load, bit Dbit, string asm, list<dag> pattern> {
4285 def _OFFSET : T2CI<op31_28,
4286 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
4287 asm, "\t$cop, $CRd, $addr", pattern, AddrMode5> {
4291 let Inst{24} = 1; // P = 1
4292 let Inst{23} = addr{8};
4293 let Inst{22} = Dbit;
4294 let Inst{21} = 0; // W = 0
4295 let Inst{20} = load;
4296 let Inst{19-16} = addr{12-9};
4297 let Inst{15-12} = CRd;
4298 let Inst{11-8} = cop;
4299 let Inst{7-0} = addr{7-0};
4300 let DecoderMethod = "DecodeCopMemInstruction";
4302 def _PRE : T2CI<op31_28,
4303 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5_pre:$addr),
4304 asm, "\t$cop, $CRd, $addr!", []> {
4308 let Inst{24} = 1; // P = 1
4309 let Inst{23} = addr{8};
4310 let Inst{22} = Dbit;
4311 let Inst{21} = 1; // W = 1
4312 let Inst{20} = load;
4313 let Inst{19-16} = addr{12-9};
4314 let Inst{15-12} = CRd;
4315 let Inst{11-8} = cop;
4316 let Inst{7-0} = addr{7-0};
4317 let DecoderMethod = "DecodeCopMemInstruction";
4319 def _POST: T2CI<op31_28,
4320 (outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
4321 postidx_imm8s4:$offset),
4322 asm, "\t$cop, $CRd, $addr, $offset", []> {
4327 let Inst{24} = 0; // P = 0
4328 let Inst{23} = offset{8};
4329 let Inst{22} = Dbit;
4330 let Inst{21} = 1; // W = 1
4331 let Inst{20} = load;
4332 let Inst{19-16} = addr;
4333 let Inst{15-12} = CRd;
4334 let Inst{11-8} = cop;
4335 let Inst{7-0} = offset{7-0};
4336 let DecoderMethod = "DecodeCopMemInstruction";
4338 def _OPTION : T2CI<op31_28, (outs),
4339 (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
4340 coproc_option_imm:$option),
4341 asm, "\t$cop, $CRd, $addr, $option", []> {
4346 let Inst{24} = 0; // P = 0
4347 let Inst{23} = 1; // U = 1
4348 let Inst{22} = Dbit;
4349 let Inst{21} = 0; // W = 0
4350 let Inst{20} = load;
4351 let Inst{19-16} = addr;
4352 let Inst{15-12} = CRd;
4353 let Inst{11-8} = cop;
4354 let Inst{7-0} = option;
4355 let DecoderMethod = "DecodeCopMemInstruction";
4359 let DecoderNamespace = "Thumb2CoProc" in {
4360 defm t2LDC : t2LdStCop<0b1110, 1, 0, "ldc", [(int_arm_ldc timm:$cop, timm:$CRd, addrmode5:$addr)]>;
4361 defm t2LDCL : t2LdStCop<0b1110, 1, 1, "ldcl", [(int_arm_ldcl timm:$cop, timm:$CRd, addrmode5:$addr)]>;
4362 defm t2LDC2 : t2LdStCop<0b1111, 1, 0, "ldc2", [(int_arm_ldc2 timm:$cop, timm:$CRd, addrmode5:$addr)]>, Requires<[PreV8,IsThumb2]>;
4363 defm t2LDC2L : t2LdStCop<0b1111, 1, 1, "ldc2l", [(int_arm_ldc2l timm:$cop, timm:$CRd, addrmode5:$addr)]>, Requires<[PreV8,IsThumb2]>;
4365 defm t2STC : t2LdStCop<0b1110, 0, 0, "stc", [(int_arm_stc timm:$cop, timm:$CRd, addrmode5:$addr)]>;
4366 defm t2STCL : t2LdStCop<0b1110, 0, 1, "stcl", [(int_arm_stcl timm:$cop, timm:$CRd, addrmode5:$addr)]>;
4367 defm t2STC2 : t2LdStCop<0b1111, 0, 0, "stc2", [(int_arm_stc2 timm:$cop, timm:$CRd, addrmode5:$addr)]>, Requires<[PreV8,IsThumb2]>;
4368 defm t2STC2L : t2LdStCop<0b1111, 0, 1, "stc2l", [(int_arm_stc2l timm:$cop, timm:$CRd, addrmode5:$addr)]>, Requires<[PreV8,IsThumb2]>;
4372 //===----------------------------------------------------------------------===//
4373 // Move between special register and ARM core register -- for disassembly only
4375 // Move to ARM core register from Special Register
4379 // A/R class can only move from CPSR or SPSR.
4380 def t2MRS_AR : T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, apsr",
4381 []>, Requires<[IsThumb2,IsNotMClass]> {
4383 let Inst{31-12} = 0b11110011111011111000;
4384 let Inst{11-8} = Rd;
4385 let Inst{7-0} = 0b00000000;
4388 def : t2InstAlias<"mrs${p} $Rd, cpsr", (t2MRS_AR GPR:$Rd, pred:$p)>;
4390 def t2MRSsys_AR: T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
4391 []>, Requires<[IsThumb2,IsNotMClass]> {
4393 let Inst{31-12} = 0b11110011111111111000;
4394 let Inst{11-8} = Rd;
4395 let Inst{7-0} = 0b00000000;
4398 def t2MRSbanked : T2I<(outs rGPR:$Rd), (ins banked_reg:$banked),
4399 NoItinerary, "mrs", "\t$Rd, $banked", []>,
4400 Requires<[IsThumb, HasVirtualization]> {
4404 let Inst{31-21} = 0b11110011111;
4405 let Inst{20} = banked{5}; // R bit
4406 let Inst{19-16} = banked{3-0};
4407 let Inst{15-12} = 0b1000;
4408 let Inst{11-8} = Rd;
4409 let Inst{7-5} = 0b001;
4410 let Inst{4} = banked{4};
4411 let Inst{3-0} = 0b0000;
4417 // This MRS has a mask field in bits 7-0 and can take more values than
4418 // the A/R class (a full msr_mask).
4419 def t2MRS_M : T2I<(outs rGPR:$Rd), (ins msr_mask:$SYSm), NoItinerary,
4420 "mrs", "\t$Rd, $SYSm", []>,
4421 Requires<[IsThumb,IsMClass]> {
4424 let Inst{31-12} = 0b11110011111011111000;
4425 let Inst{11-8} = Rd;
4426 let Inst{7-0} = SYSm;
4428 let Unpredictable{20-16} = 0b11111;
4429 let Unpredictable{13} = 0b1;
4433 // Move from ARM core register to Special Register
4437 // No need to have both system and application versions, the encodings are the
4438 // same and the assembly parser has no way to distinguish between them. The mask
4439 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
4440 // the mask with the fields to be accessed in the special register.
4441 let Defs = [CPSR] in
4442 def t2MSR_AR : T2I<(outs), (ins msr_mask:$mask, rGPR:$Rn),
4443 NoItinerary, "msr", "\t$mask, $Rn", []>,
4444 Requires<[IsThumb2,IsNotMClass]> {
4447 let Inst{31-21} = 0b11110011100;
4448 let Inst{20} = mask{4}; // R Bit
4449 let Inst{19-16} = Rn;
4450 let Inst{15-12} = 0b1000;
4451 let Inst{11-8} = mask{3-0};
4455 // However, the MSR (banked register) system instruction (ARMv7VE) *does* have a
4456 // separate encoding (distinguished by bit 5.
4457 def t2MSRbanked : T2I<(outs), (ins banked_reg:$banked, rGPR:$Rn),
4458 NoItinerary, "msr", "\t$banked, $Rn", []>,
4459 Requires<[IsThumb, HasVirtualization]> {
4463 let Inst{31-21} = 0b11110011100;
4464 let Inst{20} = banked{5}; // R bit
4465 let Inst{19-16} = Rn;
4466 let Inst{15-12} = 0b1000;
4467 let Inst{11-8} = banked{3-0};
4468 let Inst{7-5} = 0b001;
4469 let Inst{4} = banked{4};
4470 let Inst{3-0} = 0b0000;
4476 // Move from ARM core register to Special Register
4477 let Defs = [CPSR] in
4478 def t2MSR_M : T2I<(outs), (ins msr_mask:$SYSm, rGPR:$Rn),
4479 NoItinerary, "msr", "\t$SYSm, $Rn", []>,
4480 Requires<[IsThumb,IsMClass]> {
4483 let Inst{31-21} = 0b11110011100;
4485 let Inst{19-16} = Rn;
4486 let Inst{15-12} = 0b1000;
4487 let Inst{11-10} = SYSm{11-10};
4488 let Inst{9-8} = 0b00;
4489 let Inst{7-0} = SYSm{7-0};
4491 let Unpredictable{20} = 0b1;
4492 let Unpredictable{13} = 0b1;
4493 let Unpredictable{9-8} = 0b11;
4497 //===----------------------------------------------------------------------===//
4498 // Move between coprocessor and ARM core register
4501 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
4503 : T2Cop<Op, oops, iops, opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2",
4505 let Inst{27-24} = 0b1110;
4506 let Inst{20} = direction;
4516 let Inst{15-12} = Rt;
4517 let Inst{11-8} = cop;
4518 let Inst{23-21} = opc1;
4519 let Inst{7-5} = opc2;
4520 let Inst{3-0} = CRm;
4521 let Inst{19-16} = CRn;
4523 let DecoderNamespace = "Thumb2CoProc";
4526 class t2MovRRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
4527 list<dag> pattern = []>
4528 : T2Cop<Op, oops, iops, opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm", pattern> {
4529 let Inst{27-24} = 0b1100;
4530 let Inst{23-21} = 0b010;
4531 let Inst{20} = direction;
4539 let Inst{15-12} = Rt;
4540 let Inst{19-16} = Rt2;
4541 let Inst{11-8} = cop;
4542 let Inst{7-4} = opc1;
4543 let Inst{3-0} = CRm;
4545 let DecoderNamespace = "Thumb2CoProc";
4548 /* from ARM core register to coprocessor */
4549 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
4551 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4552 c_imm:$CRm, imm0_7:$opc2),
4553 [(int_arm_mcr timm:$cop, timm:$opc1, GPR:$Rt, timm:$CRn,
4554 timm:$CRm, timm:$opc2)]>,
4555 ComplexDeprecationPredicate<"MCR">;
4556 def : t2InstAlias<"mcr${p} $cop, $opc1, $Rt, $CRn, $CRm",
4557 (t2MCR p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4558 c_imm:$CRm, 0, pred:$p)>;
4559 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
4560 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4561 c_imm:$CRm, imm0_7:$opc2),
4562 [(int_arm_mcr2 timm:$cop, timm:$opc1, GPR:$Rt, timm:$CRn,
4563 timm:$CRm, timm:$opc2)]> {
4564 let Predicates = [IsThumb2, PreV8];
4566 def : t2InstAlias<"mcr2${p} $cop, $opc1, $Rt, $CRn, $CRm",
4567 (t2MCR2 p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4568 c_imm:$CRm, 0, pred:$p)>;
4570 /* from coprocessor to ARM core register */
4571 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
4572 (outs GPRwithAPSR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
4573 c_imm:$CRm, imm0_7:$opc2), []>;
4574 def : t2InstAlias<"mrc${p} $cop, $opc1, $Rt, $CRn, $CRm",
4575 (t2MRC GPRwithAPSR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
4576 c_imm:$CRm, 0, pred:$p)>;
4578 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
4579 (outs GPRwithAPSR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
4580 c_imm:$CRm, imm0_7:$opc2), []> {
4581 let Predicates = [IsThumb2, PreV8];
4583 def : t2InstAlias<"mrc2${p} $cop, $opc1, $Rt, $CRn, $CRm",
4584 (t2MRC2 GPRwithAPSR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
4585 c_imm:$CRm, 0, pred:$p)>;
4587 def : T2v6Pat<(int_arm_mrc timm:$cop, timm:$opc1, timm:$CRn, timm:$CRm, timm:$opc2),
4588 (t2MRC p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2)>;
4590 def : T2v6Pat<(int_arm_mrc2 timm:$cop, timm:$opc1, timm:$CRn, timm:$CRm, timm:$opc2),
4591 (t2MRC2 p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2)>;
4594 /* from ARM core register to coprocessor */
4595 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0, (outs),
4596 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2,
4598 [(int_arm_mcrr timm:$cop, timm:$opc1, GPR:$Rt, GPR:$Rt2,
4600 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0, (outs),
4601 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2,
4603 [(int_arm_mcrr2 timm:$cop, timm:$opc1, GPR:$Rt,
4604 GPR:$Rt2, timm:$CRm)]> {
4605 let Predicates = [IsThumb2, PreV8];
4608 /* from coprocessor to ARM core register */
4609 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1, (outs GPR:$Rt, GPR:$Rt2),
4610 (ins p_imm:$cop, imm0_15:$opc1, c_imm:$CRm)>;
4612 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1, (outs GPR:$Rt, GPR:$Rt2),
4613 (ins p_imm:$cop, imm0_15:$opc1, c_imm:$CRm)> {
4614 let Predicates = [IsThumb2, PreV8];
4617 //===----------------------------------------------------------------------===//
4618 // Other Coprocessor Instructions.
4621 def t2CDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
4622 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
4623 "cdp", "\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
4624 [(int_arm_cdp timm:$cop, timm:$opc1, timm:$CRd, timm:$CRn,
4625 timm:$CRm, timm:$opc2)]> {
4626 let Inst{27-24} = 0b1110;
4635 let Inst{3-0} = CRm;
4637 let Inst{7-5} = opc2;
4638 let Inst{11-8} = cop;
4639 let Inst{15-12} = CRd;
4640 let Inst{19-16} = CRn;
4641 let Inst{23-20} = opc1;
4643 let Predicates = [IsThumb2, PreV8];
4644 let DecoderNamespace = "Thumb2CoProc";
4647 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
4648 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
4649 "cdp2", "\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
4650 [(int_arm_cdp2 timm:$cop, timm:$opc1, timm:$CRd, timm:$CRn,
4651 timm:$CRm, timm:$opc2)]> {
4652 let Inst{27-24} = 0b1110;
4661 let Inst{3-0} = CRm;
4663 let Inst{7-5} = opc2;
4664 let Inst{11-8} = cop;
4665 let Inst{15-12} = CRd;
4666 let Inst{19-16} = CRn;
4667 let Inst{23-20} = opc1;
4669 let Predicates = [IsThumb2, PreV8];
4670 let DecoderNamespace = "Thumb2CoProc";
4675 //===----------------------------------------------------------------------===//
4676 // ARMv8.1 Privilege Access Never extension
4680 def t2SETPAN : T1I<(outs), (ins imm0_1:$imm), NoItinerary, "setpan\t$imm", []>,
4681 T1Misc<0b0110000>, Requires<[IsThumb2, HasV8, HasV8_1a]> {
4686 let Inst{2-0} = 0b000;
4688 let Unpredictable{4} = 0b1;
4689 let Unpredictable{2-0} = 0b111;
4692 //===----------------------------------------------------------------------===//
4693 // ARMv8-M Security Extensions instructions
4696 let hasSideEffects = 1 in
4697 def t2SG : T2I<(outs), (ins), NoItinerary, "sg", "", []>,
4698 Requires<[Has8MSecExt]> {
4699 let Inst = 0xe97fe97f;
4702 class T2TT<bits<2> at, string asm, list<dag> pattern>
4703 : T2I<(outs rGPR:$Rt), (ins GPRnopc:$Rn), NoItinerary, asm, "\t$Rt, $Rn",
4708 let Inst{31-20} = 0b111010000100;
4709 let Inst{19-16} = Rn;
4710 let Inst{15-12} = 0b1111;
4711 let Inst{11-8} = Rt;
4713 let Inst{5-0} = 0b000000;
4715 let Unpredictable{5-0} = 0b111111;
4718 def t2TT : T2TT<0b00, "tt",
4719 [(set rGPR:$Rt, (int_arm_cmse_tt GPRnopc:$Rn))]>,
4720 Requires<[IsThumb, Has8MSecExt]>;
4721 def t2TTT : T2TT<0b01, "ttt",
4722 [(set rGPR:$Rt, (int_arm_cmse_ttt GPRnopc:$Rn))]>,
4723 Requires<[IsThumb, Has8MSecExt]>;
4724 def t2TTA : T2TT<0b10, "tta",
4725 [(set rGPR:$Rt, (int_arm_cmse_tta GPRnopc:$Rn))]>,
4726 Requires<[IsThumb, Has8MSecExt]>;
4727 def t2TTAT : T2TT<0b11, "ttat",
4728 [(set rGPR:$Rt, (int_arm_cmse_ttat GPRnopc:$Rn))]>,
4729 Requires<[IsThumb, Has8MSecExt]>;
4731 //===----------------------------------------------------------------------===//
4732 // Non-Instruction Patterns
4735 // SXT/UXT with no rotate
4736 let AddedComplexity = 16 in {
4737 def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>,
4738 Requires<[IsThumb2]>;
4739 def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>,
4740 Requires<[IsThumb2]>;
4741 def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>,
4742 Requires<[HasDSP, IsThumb2]>;
4743 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)),
4744 (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
4745 Requires<[HasDSP, IsThumb2]>;
4746 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)),
4747 (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
4748 Requires<[HasDSP, IsThumb2]>;
4751 def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>,
4752 Requires<[IsThumb2]>;
4753 def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>,
4754 Requires<[IsThumb2]>;
4755 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)),
4756 (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
4757 Requires<[HasDSP, IsThumb2]>;
4758 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)),
4759 (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
4760 Requires<[HasDSP, IsThumb2]>;
4762 // Atomic load/store patterns
4763 def : T2Pat<(atomic_load_8 t2addrmode_imm12:$addr),
4764 (t2LDRBi12 t2addrmode_imm12:$addr)>;
4765 def : T2Pat<(atomic_load_8 t2addrmode_negimm8:$addr),
4766 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
4767 def : T2Pat<(atomic_load_8 t2addrmode_so_reg:$addr),
4768 (t2LDRBs t2addrmode_so_reg:$addr)>;
4769 def : T2Pat<(atomic_load_16 t2addrmode_imm12:$addr),
4770 (t2LDRHi12 t2addrmode_imm12:$addr)>;
4771 def : T2Pat<(atomic_load_16 t2addrmode_negimm8:$addr),
4772 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
4773 def : T2Pat<(atomic_load_16 t2addrmode_so_reg:$addr),
4774 (t2LDRHs t2addrmode_so_reg:$addr)>;
4775 def : T2Pat<(atomic_load_32 t2addrmode_imm12:$addr),
4776 (t2LDRi12 t2addrmode_imm12:$addr)>;
4777 def : T2Pat<(atomic_load_32 t2addrmode_negimm8:$addr),
4778 (t2LDRi8 t2addrmode_negimm8:$addr)>;
4779 def : T2Pat<(atomic_load_32 t2addrmode_so_reg:$addr),
4780 (t2LDRs t2addrmode_so_reg:$addr)>;
4781 def : T2Pat<(atomic_store_8 t2addrmode_imm12:$addr, GPR:$val),
4782 (t2STRBi12 GPR:$val, t2addrmode_imm12:$addr)>;
4783 def : T2Pat<(atomic_store_8 t2addrmode_negimm8:$addr, GPR:$val),
4784 (t2STRBi8 GPR:$val, t2addrmode_negimm8:$addr)>;
4785 def : T2Pat<(atomic_store_8 t2addrmode_so_reg:$addr, GPR:$val),
4786 (t2STRBs GPR:$val, t2addrmode_so_reg:$addr)>;
4787 def : T2Pat<(atomic_store_16 t2addrmode_imm12:$addr, GPR:$val),
4788 (t2STRHi12 GPR:$val, t2addrmode_imm12:$addr)>;
4789 def : T2Pat<(atomic_store_16 t2addrmode_negimm8:$addr, GPR:$val),
4790 (t2STRHi8 GPR:$val, t2addrmode_negimm8:$addr)>;
4791 def : T2Pat<(atomic_store_16 t2addrmode_so_reg:$addr, GPR:$val),
4792 (t2STRHs GPR:$val, t2addrmode_so_reg:$addr)>;
4793 def : T2Pat<(atomic_store_32 t2addrmode_imm12:$addr, GPR:$val),
4794 (t2STRi12 GPR:$val, t2addrmode_imm12:$addr)>;
4795 def : T2Pat<(atomic_store_32 t2addrmode_negimm8:$addr, GPR:$val),
4796 (t2STRi8 GPR:$val, t2addrmode_negimm8:$addr)>;
4797 def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val),
4798 (t2STRs GPR:$val, t2addrmode_so_reg:$addr)>;
4800 let AddedComplexity = 8, Predicates = [IsThumb, HasAcquireRelease, HasV7Clrex] in {
4801 def : Pat<(atomic_load_acquire_8 addr_offset_none:$addr), (t2LDAB addr_offset_none:$addr)>;
4802 def : Pat<(atomic_load_acquire_16 addr_offset_none:$addr), (t2LDAH addr_offset_none:$addr)>;
4803 def : Pat<(atomic_load_acquire_32 addr_offset_none:$addr), (t2LDA addr_offset_none:$addr)>;
4804 def : Pat<(atomic_store_release_8 addr_offset_none:$addr, GPR:$val), (t2STLB GPR:$val, addr_offset_none:$addr)>;
4805 def : Pat<(atomic_store_release_16 addr_offset_none:$addr, GPR:$val), (t2STLH GPR:$val, addr_offset_none:$addr)>;
4806 def : Pat<(atomic_store_release_32 addr_offset_none:$addr, GPR:$val), (t2STL GPR:$val, addr_offset_none:$addr)>;
4810 //===----------------------------------------------------------------------===//
4811 // Assembler aliases
4814 // Aliases for ADC without the ".w" optional width specifier.
4815 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm",
4816 (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4817 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm",
4818 (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
4819 pred:$p, cc_out:$s)>;
4821 // Aliases for SBC without the ".w" optional width specifier.
4822 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm",
4823 (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4824 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
4825 (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
4826 pred:$p, cc_out:$s)>;
4828 // Aliases for ADD without the ".w" optional width specifier.
4829 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4830 (t2ADDri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p,
4832 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
4833 (t2ADDri12 rGPR:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
4834 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
4835 (t2ADDrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4836 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
4837 (t2ADDrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
4838 pred:$p, cc_out:$s)>;
4839 // ... and with the destination and source register combined.
4840 def : t2InstAlias<"add${s}${p} $Rdn, $imm",
4841 (t2ADDri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4842 def : t2InstAlias<"add${p} $Rdn, $imm",
4843 (t2ADDri12 rGPR:$Rdn, rGPR:$Rdn, imm0_4095:$imm, pred:$p)>;
4844 def : t2InstAlias<"addw${p} $Rdn, $imm",
4845 (t2ADDri12 rGPR:$Rdn, rGPR:$Rdn, imm0_4095:$imm, pred:$p)>;
4846 def : t2InstAlias<"add${s}${p} $Rdn, $Rm",
4847 (t2ADDrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4848 def : t2InstAlias<"add${s}${p} $Rdn, $ShiftedRm",
4849 (t2ADDrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
4850 pred:$p, cc_out:$s)>;
4852 // add w/ negative immediates is just a sub.
4853 def : t2InstSubst<"add${s}${p} $Rd, $Rn, $imm",
4854 (t2SUBri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
4856 def : t2InstSubst<"add${p} $Rd, $Rn, $imm",
4857 (t2SUBri12 rGPR:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4858 def : t2InstSubst<"add${s}${p} $Rdn, $imm",
4859 (t2SUBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4861 def : t2InstSubst<"add${p} $Rdn, $imm",
4862 (t2SUBri12 rGPR:$Rdn, rGPR:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4864 def : t2InstSubst<"add${s}${p}.w $Rd, $Rn, $imm",
4865 (t2SUBri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
4867 def : t2InstSubst<"addw${p} $Rd, $Rn, $imm",
4868 (t2SUBri12 rGPR:$Rd, rGPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4869 def : t2InstSubst<"add${s}${p}.w $Rdn, $imm",
4870 (t2SUBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4872 def : t2InstSubst<"addw${p} $Rdn, $imm",
4873 (t2SUBri12 rGPR:$Rdn, rGPR:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4876 // Aliases for SUB without the ".w" optional width specifier.
4877 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm",
4878 (t2SUBri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4879 def : t2InstAlias<"sub${p} $Rd, $Rn, $imm",
4880 (t2SUBri12 rGPR:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
4881 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $Rm",
4882 (t2SUBrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4883 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $ShiftedRm",
4884 (t2SUBrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
4885 pred:$p, cc_out:$s)>;
4886 // ... and with the destination and source register combined.
4887 def : t2InstAlias<"sub${s}${p} $Rdn, $imm",
4888 (t2SUBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4889 def : t2InstAlias<"sub${p} $Rdn, $imm",
4890 (t2SUBri12 rGPR:$Rdn, rGPR:$Rdn, imm0_4095:$imm, pred:$p)>;
4891 def : t2InstAlias<"subw${p} $Rdn, $imm",
4892 (t2SUBri12 rGPR:$Rdn, rGPR:$Rdn, imm0_4095:$imm, pred:$p)>;
4893 def : t2InstAlias<"sub${s}${p}.w $Rdn, $Rm",
4894 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4895 def : t2InstAlias<"sub${s}${p} $Rdn, $Rm",
4896 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4897 def : t2InstAlias<"sub${s}${p} $Rdn, $ShiftedRm",
4898 (t2SUBrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
4899 pred:$p, cc_out:$s)>;
4901 // SP to SP alike aliases
4902 // Aliases for ADD without the ".w" optional width specifier.
4903 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4904 (t2ADDspImm GPRsp:$Rd, GPRsp:$Rn, t2_so_imm:$imm, pred:$p,
4906 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
4907 (t2ADDspImm12 GPRsp:$Rd, GPRsp:$Rn, imm0_4095:$imm, pred:$p)>;
4908 // ... and with the destination and source register combined.
4909 def : t2InstAlias<"add${s}${p} $Rdn, $imm",
4910 (t2ADDspImm GPRsp:$Rdn, GPRsp:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4912 def : t2InstAlias<"add${s}${p}.w $Rdn, $imm",
4913 (t2ADDspImm GPRsp:$Rdn, GPRsp:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4915 def : t2InstAlias<"add${p} $Rdn, $imm",
4916 (t2ADDspImm12 GPRsp:$Rdn, GPRsp:$Rdn, imm0_4095:$imm, pred:$p)>;
4918 def : t2InstAlias<"addw${p} $Rdn, $imm",
4919 (t2ADDspImm12 GPRsp:$Rdn, GPRsp:$Rdn, imm0_4095:$imm, pred:$p)>;
4921 // add w/ negative immediates is just a sub.
4922 def : t2InstSubst<"add${s}${p} $Rd, $Rn, $imm",
4923 (t2SUBspImm GPRsp:$Rd, GPRsp:$Rn, t2_so_imm_neg:$imm, pred:$p,
4925 def : t2InstSubst<"add${p} $Rd, $Rn, $imm",
4926 (t2SUBspImm12 GPRsp:$Rd, GPRsp:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4927 def : t2InstSubst<"add${s}${p} $Rdn, $imm",
4928 (t2SUBspImm GPRsp:$Rdn, GPRsp:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4930 def : t2InstSubst<"add${p} $Rdn, $imm",
4931 (t2SUBspImm12 GPRsp:$Rdn, GPRsp:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4933 def : t2InstSubst<"add${s}${p}.w $Rd, $Rn, $imm",
4934 (t2SUBspImm GPRsp:$Rd, GPRsp:$Rn, t2_so_imm_neg:$imm, pred:$p,
4936 def : t2InstSubst<"addw${p} $Rd, $Rn, $imm",
4937 (t2SUBspImm12 GPRsp:$Rd, GPRsp:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4938 def : t2InstSubst<"add${s}${p}.w $Rdn, $imm",
4939 (t2SUBspImm GPRsp:$Rdn, GPRsp:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4941 def : t2InstSubst<"addw${p} $Rdn, $imm",
4942 (t2SUBspImm12 GPRsp:$Rdn, GPRsp:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4945 // Aliases for SUB without the ".w" optional width specifier.
4946 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm",
4947 (t2SUBspImm GPRsp:$Rd, GPRsp:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4948 def : t2InstAlias<"sub${p} $Rd, $Rn, $imm",
4949 (t2SUBspImm12 GPRsp:$Rd, GPRsp:$Rn, imm0_4095:$imm, pred:$p)>;
4950 // ... and with the destination and source register combined.
4951 def : t2InstAlias<"sub${s}${p} $Rdn, $imm",
4952 (t2SUBspImm GPRsp:$Rdn, GPRsp:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4953 def : t2InstAlias<"sub${s}${p}.w $Rdn, $imm",
4954 (t2SUBspImm GPRsp:$Rdn, GPRsp:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4955 def : t2InstAlias<"sub${p} $Rdn, $imm",
4956 (t2SUBspImm12 GPRsp:$Rdn, GPRsp:$Rdn, imm0_4095:$imm, pred:$p)>;
4957 def : t2InstAlias<"subw${p} $Rdn, $imm",
4958 (t2SUBspImm12 GPRsp:$Rdn, GPRsp:$Rdn, imm0_4095:$imm, pred:$p)>;
4960 // Alias for compares without the ".w" optional width specifier.
4961 def : t2InstAlias<"cmn${p} $Rn, $Rm",
4962 (t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4963 def : t2InstAlias<"teq${p} $Rn, $Rm",
4964 (t2TEQrr rGPR:$Rn, rGPR:$Rm, pred:$p)>;
4965 def : t2InstAlias<"tst${p} $Rn, $Rm",
4966 (t2TSTrr rGPR:$Rn, rGPR:$Rm, pred:$p)>;
4969 def : InstAlias<"dmb${p}.w\t$opt", (t2DMB memb_opt:$opt, pred:$p), 0>, Requires<[HasDB]>;
4970 def : InstAlias<"dmb${p}", (t2DMB 0xf, pred:$p), 0>, Requires<[HasDB]>;
4971 def : InstAlias<"dmb${p}.w", (t2DMB 0xf, pred:$p), 0>, Requires<[HasDB]>;
4972 def : InstAlias<"dsb${p}.w\t$opt", (t2DSB memb_opt:$opt, pred:$p), 0>, Requires<[HasDB]>;
4973 def : InstAlias<"dsb${p}", (t2DSB 0xf, pred:$p), 0>, Requires<[HasDB]>;
4974 def : InstAlias<"dsb${p}.w", (t2DSB 0xf, pred:$p), 0>, Requires<[HasDB]>;
4975 def : InstAlias<"isb${p}.w\t$opt", (t2ISB memb_opt:$opt, pred:$p), 0>, Requires<[HasDB]>;
4976 def : InstAlias<"isb${p}", (t2ISB 0xf, pred:$p), 0>, Requires<[HasDB]>;
4977 def : InstAlias<"isb${p}.w", (t2ISB 0xf, pred:$p), 0>, Requires<[HasDB]>;
4979 // Non-predicable aliases of a predicable DSB: the predicate is (14, 0) where
4980 // 14 = AL (always execute) and 0 = "instruction doesn't read the CPSR".
4981 def : InstAlias<"ssbb", (t2DSB 0x0, 14, 0), 1>, Requires<[HasDB, IsThumb2]>;
4982 def : InstAlias<"pssbb", (t2DSB 0x4, 14, 0), 1>, Requires<[HasDB, IsThumb2]>;
4984 // Armv8-R 'Data Full Barrier'
4985 def : InstAlias<"dfb${p}", (t2DSB 0xc, pred:$p), 1>, Requires<[HasDFB]>;
4987 // SpeculationBarrierEndBB must only be used after an unconditional control
4988 // flow, i.e. after a terminator for which isBarrier is True.
4989 let hasSideEffects = 1, isCodeGenOnly = 1, isTerminator = 1, isBarrier = 1 in {
4990 def t2SpeculationBarrierISBDSBEndBB
4991 : PseudoInst<(outs), (ins), NoItinerary, []>, Sched<[]>;
4992 def t2SpeculationBarrierSBEndBB
4993 : PseudoInst<(outs), (ins), NoItinerary, []>, Sched<[]>;
4996 // Alias for LDR, LDRB, LDRH, LDRSB, and LDRSH without the ".w" optional
4998 def : t2InstAlias<"ldr${p} $Rt, $addr",
4999 (t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
5000 def : t2InstAlias<"ldrb${p} $Rt, $addr",
5001 (t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
5002 def : t2InstAlias<"ldrh${p} $Rt, $addr",
5003 (t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
5004 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
5005 (t2LDRSBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
5006 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
5007 (t2LDRSHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
5009 def : t2InstAlias<"ldr${p} $Rt, $addr",
5010 (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
5011 def : t2InstAlias<"ldrb${p} $Rt, $addr",
5012 (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
5013 def : t2InstAlias<"ldrh${p} $Rt, $addr",
5014 (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
5015 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
5016 (t2LDRSBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
5017 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
5018 (t2LDRSHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
5020 def : t2InstAlias<"ldr${p} $Rt, $addr",
5021 (t2LDRpci GPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
5022 def : t2InstAlias<"ldrb${p} $Rt, $addr",
5023 (t2LDRBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
5024 def : t2InstAlias<"ldrh${p} $Rt, $addr",
5025 (t2LDRHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
5026 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
5027 (t2LDRSBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
5028 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
5029 (t2LDRSHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
5031 // Alias for MVN with(out) the ".w" optional width specifier.
5032 def : t2InstAlias<"mvn${s}${p}.w $Rd, $imm",
5033 (t2MVNi rGPR:$Rd, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
5034 def : t2InstAlias<"mvn${s}${p} $Rd, $Rm",
5035 (t2MVNr rGPR:$Rd, rGPR:$Rm, pred:$p, cc_out:$s)>;
5036 def : t2InstAlias<"mvn${s}${p} $Rd, $ShiftedRm",
5037 (t2MVNs rGPR:$Rd, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>;
5039 // PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT with the
5040 // input operands swapped when the shift amount is zero (i.e., unspecified).
5041 def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
5042 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
5043 Requires<[HasDSP, IsThumb2]>;
5044 def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
5045 (t2PKHBT rGPR:$Rd, rGPR:$Rm, rGPR:$Rn, 0, pred:$p), 0>,
5046 Requires<[HasDSP, IsThumb2]>;
5048 // PUSH/POP aliases for STM/LDM
5049 def : t2InstAlias<"push${p}.w $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
5050 def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
5051 def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
5052 def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
5054 // STMIA/STMIA_UPD aliases w/o the optional .w suffix
5055 def : t2InstAlias<"stm${p} $Rn, $regs",
5056 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
5057 def : t2InstAlias<"stm${p} $Rn!, $regs",
5058 (t2STMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
5060 // LDMIA/LDMIA_UPD aliases w/o the optional .w suffix
5061 def : t2InstAlias<"ldm${p} $Rn, $regs",
5062 (t2LDMIA GPR:$Rn, pred:$p, reglist:$regs)>;
5063 def : t2InstAlias<"ldm${p} $Rn!, $regs",
5064 (t2LDMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
5066 // STMDB/STMDB_UPD aliases w/ the optional .w suffix
5067 def : t2InstAlias<"stmdb${p}.w $Rn, $regs",
5068 (t2STMDB GPR:$Rn, pred:$p, reglist:$regs)>;
5069 def : t2InstAlias<"stmdb${p}.w $Rn!, $regs",
5070 (t2STMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
5072 // LDMDB/LDMDB_UPD aliases w/ the optional .w suffix
5073 def : t2InstAlias<"ldmdb${p}.w $Rn, $regs",
5074 (t2LDMDB GPR:$Rn, pred:$p, reglist:$regs)>;
5075 def : t2InstAlias<"ldmdb${p}.w $Rn!, $regs",
5076 (t2LDMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
5078 // Alias for REV/REV16/REVSH without the ".w" optional width specifier.
5079 def : t2InstAlias<"rev${p} $Rd, $Rm", (t2REV rGPR:$Rd, rGPR:$Rm, pred:$p)>;
5080 def : t2InstAlias<"rev16${p} $Rd, $Rm", (t2REV16 rGPR:$Rd, rGPR:$Rm, pred:$p)>;
5081 def : t2InstAlias<"revsh${p} $Rd, $Rm", (t2REVSH rGPR:$Rd, rGPR:$Rm, pred:$p)>;
5084 // Alias for RSB with and without the ".w" optional width specifier, with and
5085 // without explicit destination register.
5086 def : t2InstAlias<"rsb${s}${p} $Rd, $Rn, $imm",
5087 (t2RSBri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
5088 def : t2InstAlias<"rsb${s}${p} $Rdn, $imm",
5089 (t2RSBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
5090 def : t2InstAlias<"rsb${s}${p} $Rdn, $Rm",
5091 (t2RSBrr rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
5092 def : t2InstAlias<"rsb${s}${p} $Rdn, $ShiftedRm",
5093 (t2RSBrs rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$ShiftedRm, pred:$p,
5095 def : t2InstAlias<"rsb${s}${p}.w $Rdn, $Rm",
5096 (t2RSBrr rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
5097 def : t2InstAlias<"rsb${s}${p}.w $Rd, $Rn, $Rm",
5098 (t2RSBrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
5099 def : t2InstAlias<"rsb${s}${p}.w $Rd, $Rn, $ShiftedRm",
5100 (t2RSBrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p,
5103 // SSAT/USAT optional shift operand.
5104 def : t2InstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
5105 (t2SSAT rGPR:$Rd, imm1_32:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
5106 def : t2InstAlias<"usat${p} $Rd, $sat_imm, $Rn",
5107 (t2USAT rGPR:$Rd, imm0_31:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
5109 // STM w/o the .w suffix.
5110 def : t2InstAlias<"stm${p} $Rn, $regs",
5111 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
5113 // Alias for STR, STRB, and STRH without the ".w" optional
5115 def : t2InstAlias<"str${p} $Rt, $addr",
5116 (t2STRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
5117 def : t2InstAlias<"strb${p} $Rt, $addr",
5118 (t2STRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
5119 def : t2InstAlias<"strh${p} $Rt, $addr",
5120 (t2STRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
5122 def : t2InstAlias<"str${p} $Rt, $addr",
5123 (t2STRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
5124 def : t2InstAlias<"strb${p} $Rt, $addr",
5125 (t2STRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
5126 def : t2InstAlias<"strh${p} $Rt, $addr",
5127 (t2STRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
5129 // Extend instruction optional rotate operand.
5130 def : InstAlias<"sxtab${p} $Rd, $Rn, $Rm",
5131 (t2SXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
5132 Requires<[HasDSP, IsThumb2]>;
5133 def : InstAlias<"sxtah${p} $Rd, $Rn, $Rm",
5134 (t2SXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
5135 Requires<[HasDSP, IsThumb2]>;
5136 def : InstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
5137 (t2SXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
5138 Requires<[HasDSP, IsThumb2]>;
5139 def : InstAlias<"sxtb16${p} $Rd, $Rm",
5140 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p), 0>,
5141 Requires<[HasDSP, IsThumb2]>;
5143 def : t2InstAlias<"sxtb${p} $Rd, $Rm",
5144 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
5145 def : t2InstAlias<"sxth${p} $Rd, $Rm",
5146 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
5147 def : t2InstAlias<"sxtb${p}.w $Rd, $Rm",
5148 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
5149 def : t2InstAlias<"sxth${p}.w $Rd, $Rm",
5150 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
5152 def : InstAlias<"uxtab${p} $Rd, $Rn, $Rm",
5153 (t2UXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
5154 Requires<[HasDSP, IsThumb2]>;
5155 def : InstAlias<"uxtah${p} $Rd, $Rn, $Rm",
5156 (t2UXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
5157 Requires<[HasDSP, IsThumb2]>;
5158 def : InstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
5159 (t2UXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p), 0>,
5160 Requires<[HasDSP, IsThumb2]>;
5161 def : InstAlias<"uxtb16${p} $Rd, $Rm",
5162 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p), 0>,
5163 Requires<[HasDSP, IsThumb2]>;
5165 def : t2InstAlias<"uxtb${p} $Rd, $Rm",
5166 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
5167 def : t2InstAlias<"uxth${p} $Rd, $Rm",
5168 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
5169 def : t2InstAlias<"uxtb${p}.w $Rd, $Rm",
5170 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
5171 def : t2InstAlias<"uxth${p}.w $Rd, $Rm",
5172 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
5174 // Extend instruction w/o the ".w" optional width specifier.
5175 def : t2InstAlias<"uxtb${p} $Rd, $Rm$rot",
5176 (t2UXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
5177 def : InstAlias<"uxtb16${p} $Rd, $Rm$rot",
5178 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p), 0>,
5179 Requires<[HasDSP, IsThumb2]>;
5180 def : t2InstAlias<"uxth${p} $Rd, $Rm$rot",
5181 (t2UXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
5183 def : t2InstAlias<"sxtb${p} $Rd, $Rm$rot",
5184 (t2SXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
5185 def : InstAlias<"sxtb16${p} $Rd, $Rm$rot",
5186 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p), 0>,
5187 Requires<[HasDSP, IsThumb2]>;
5188 def : t2InstAlias<"sxth${p} $Rd, $Rm$rot",
5189 (t2SXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
5192 // "mov Rd, t2_so_imm_not" can be handled via "mvn" in assembly, just like
5194 def : t2InstSubst<"mov${p} $Rd, $imm",
5195 (t2MVNi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
5196 def : t2InstSubst<"mvn${s}${p} $Rd, $imm",
5197 (t2MOVi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, s_cc_out:$s)>;
5198 // Same for AND <--> BIC
5199 def : t2InstSubst<"bic${s}${p} $Rd, $Rn, $imm",
5200 (t2ANDri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
5201 pred:$p, cc_out:$s)>;
5202 def : t2InstSubst<"bic${s}${p} $Rdn, $imm",
5203 (t2ANDri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
5204 pred:$p, cc_out:$s)>;
5205 def : t2InstSubst<"bic${s}${p}.w $Rd, $Rn, $imm",
5206 (t2ANDri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
5207 pred:$p, cc_out:$s)>;
5208 def : t2InstSubst<"bic${s}${p}.w $Rdn, $imm",
5209 (t2ANDri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
5210 pred:$p, cc_out:$s)>;
5211 def : t2InstSubst<"and${s}${p} $Rd, $Rn, $imm",
5212 (t2BICri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
5213 pred:$p, cc_out:$s)>;
5214 def : t2InstSubst<"and${s}${p} $Rdn, $imm",
5215 (t2BICri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
5216 pred:$p, cc_out:$s)>;
5217 def : t2InstSubst<"and${s}${p}.w $Rd, $Rn, $imm",
5218 (t2BICri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
5219 pred:$p, cc_out:$s)>;
5220 def : t2InstSubst<"and${s}${p}.w $Rdn, $imm",
5221 (t2BICri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
5222 pred:$p, cc_out:$s)>;
5224 def : t2InstSubst<"orn${s}${p} $Rd, $Rn, $imm",
5225 (t2ORRri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
5226 pred:$p, cc_out:$s)>;
5227 def : t2InstSubst<"orn${s}${p} $Rdn, $imm",
5228 (t2ORRri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
5229 pred:$p, cc_out:$s)>;
5230 def : t2InstSubst<"orr${s}${p} $Rd, $Rn, $imm",
5231 (t2ORNri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
5232 pred:$p, cc_out:$s)>;
5233 def : t2InstSubst<"orr${s}${p} $Rdn, $imm",
5234 (t2ORNri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
5235 pred:$p, cc_out:$s)>;
5236 // Likewise, "add Rd, t2_so_imm_neg" -> sub
5237 def : t2InstSubst<"add${s}${p} $Rd, $Rn, $imm",
5238 (t2SUBri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm,
5239 pred:$p, cc_out:$s)>;
5240 def : t2InstSubst<"add${s}${p} $Rd, $Rn, $imm",
5241 (t2SUBspImm GPRsp:$Rd, GPRsp:$Rn, t2_so_imm_neg:$imm,
5242 pred:$p, cc_out:$s)>;
5243 def : t2InstSubst<"add${s}${p} $Rd, $imm",
5244 (t2SUBri rGPR:$Rd, rGPR:$Rd, t2_so_imm_neg:$imm,
5245 pred:$p, cc_out:$s)>;
5246 def : t2InstSubst<"add${s}${p} $Rd, $imm",
5247 (t2SUBspImm GPRsp:$Rd, GPRsp:$Rd, t2_so_imm_neg:$imm,
5248 pred:$p, cc_out:$s)>;
5249 // Same for CMP <--> CMN via t2_so_imm_neg
5250 def : t2InstSubst<"cmp${p} $Rd, $imm",
5251 (t2CMNri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
5252 def : t2InstSubst<"cmn${p} $Rd, $imm",
5253 (t2CMPri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
5256 // Wide 'mul' encoding can be specified with only two operands.
5257 def : t2InstAlias<"mul${p} $Rn, $Rm",
5258 (t2MUL rGPR:$Rn, rGPR:$Rm, rGPR:$Rn, pred:$p)>;
5260 // "neg" is and alias for "rsb rd, rn, #0"
5261 def : t2InstAlias<"neg${s}${p} $Rd, $Rm",
5262 (t2RSBri rGPR:$Rd, rGPR:$Rm, 0, pred:$p, cc_out:$s)>;
5264 // MOV so_reg assembler pseudos. InstAlias isn't expressive enough for
5265 // these, unfortunately.
5266 // FIXME: LSL #0 in the shift should allow SP to be used as either the
5267 // source or destination (but not both).
5268 def t2MOVsi: t2AsmPseudo<"mov${p} $Rd, $shift",
5269 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
5270 def t2MOVSsi: t2AsmPseudo<"movs${p} $Rd, $shift",
5271 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
5273 def t2MOVsr: t2AsmPseudo<"mov${p} $Rd, $shift",
5274 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
5275 def t2MOVSsr: t2AsmPseudo<"movs${p} $Rd, $shift",
5276 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
5278 // Aliases for the above with the .w qualifier
5279 def : t2InstAlias<"mov${p}.w $Rd, $shift",
5280 (t2MOVsi rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
5281 def : t2InstAlias<"movs${p}.w $Rd, $shift",
5282 (t2MOVSsi rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
5283 def : t2InstAlias<"mov${p}.w $Rd, $shift",
5284 (t2MOVsr rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
5285 def : t2InstAlias<"movs${p}.w $Rd, $shift",
5286 (t2MOVSsr rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
5288 // ADR w/o the .w suffix
5289 def : t2InstAlias<"adr${p} $Rd, $addr",
5290 (t2ADR rGPR:$Rd, t2adrlabel:$addr, pred:$p)>;
5292 // LDR(literal) w/ alternate [pc, #imm] syntax.
5293 def t2LDRpcrel : t2AsmPseudo<"ldr${p} $Rt, $addr",
5294 (ins GPR:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5295 def t2LDRBpcrel : t2AsmPseudo<"ldrb${p} $Rt, $addr",
5296 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5297 def t2LDRHpcrel : t2AsmPseudo<"ldrh${p} $Rt, $addr",
5298 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5299 def t2LDRSBpcrel : t2AsmPseudo<"ldrsb${p} $Rt, $addr",
5300 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5301 def t2LDRSHpcrel : t2AsmPseudo<"ldrsh${p} $Rt, $addr",
5302 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5303 // Version w/ the .w suffix.
5304 def : t2InstAlias<"ldr${p}.w $Rt, $addr",
5305 (t2LDRpcrel GPR:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p), 0>;
5306 def : t2InstAlias<"ldrb${p}.w $Rt, $addr",
5307 (t2LDRBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5308 def : t2InstAlias<"ldrh${p}.w $Rt, $addr",
5309 (t2LDRHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5310 def : t2InstAlias<"ldrsb${p}.w $Rt, $addr",
5311 (t2LDRSBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5312 def : t2InstAlias<"ldrsh${p}.w $Rt, $addr",
5313 (t2LDRSHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
5315 def : t2InstAlias<"add${p} $Rd, pc, $imm",
5316 (t2ADR rGPR:$Rd, imm0_4095:$imm, pred:$p)>;
5318 // Pseudo instruction ldr Rt, =immediate
5320 : t2AsmPseudo<"ldr${p} $Rt, $immediate",
5321 (ins GPR:$Rt, const_pool_asm_imm:$immediate, pred:$p)>;
5322 // Version w/ the .w suffix.
5323 def : t2InstAlias<"ldr${p}.w $Rt, $immediate",
5324 (t2LDRConstPool GPRnopc:$Rt,
5325 const_pool_asm_imm:$immediate, pred:$p)>;
5327 //===----------------------------------------------------------------------===//
5328 // ARMv8.1m instructions
5331 class V8_1MI<dag oops, dag iops, AddrMode am, InstrItinClass itin, string asm,
5332 string ops, string cstr, list<dag> pattern>
5333 : Thumb2XI<oops, iops, am, 4, itin, !strconcat(asm, "\t", ops), cstr,
5335 Requires<[HasV8_1MMainline]>;
5337 def t2CLRM : V8_1MI<(outs),
5338 (ins pred:$p, reglist_with_apsr:$regs, variable_ops),
5339 AddrModeNone, NoItinerary, "clrm${p}", "$regs", "", []> {
5342 let Inst{31-16} = 0b1110100010011111;
5343 let Inst{15-14} = regs{15-14};
5345 let Inst{12-0} = regs{12-0};
5348 class t2BF<dag iops, string asm, string ops>
5349 : V8_1MI<(outs ), iops, AddrModeNone, NoItinerary, asm, ops, "", []> {
5351 let Inst{31-27} = 0b11110;
5352 let Inst{15-14} = 0b11;
5356 let Predicates = [IsThumb2, HasV8_1MMainline, HasLOB];
5359 def t2BF_LabelPseudo
5360 : t2PseudoInst<(outs ), (ins pclabel:$cp), 0, NoItinerary, []> {
5361 let isTerminator = 1;
5362 let Predicates = [IsThumb2, HasV8_1MMainline, HasLOB];
5363 let hasNoSchedulingInfo = 1;
5366 def t2BFi : t2BF<(ins bflabel_u4:$b_label, bflabel_s16:$label, pred:$p),
5367 !strconcat("bf", "${p}"), "$b_label, $label"> {
5371 let Inst{26-23} = b_label{3-0};
5372 let Inst{22-21} = 0b10;
5373 let Inst{20-16} = label{15-11};
5375 let Inst{11} = label{0};
5376 let Inst{10-1} = label{10-1};
5379 def t2BFic : t2BF<(ins bflabel_u4:$b_label, bflabel_s12:$label,
5380 bfafter_target:$ba_label, pred_noal:$bcond), "bfcsel",
5381 "$b_label, $label, $ba_label, $bcond"> {
5387 let Inst{26-23} = b_label{3-0};
5389 let Inst{21-18} = bcond{3-0};
5390 let Inst{17} = ba_label{0};
5391 let Inst{16} = label{11};
5393 let Inst{11} = label{0};
5394 let Inst{10-1} = label{10-1};
5397 def t2BFr : t2BF<(ins bflabel_u4:$b_label, rGPR:$Rn, pred:$p),
5398 !strconcat("bfx", "${p}"), "$b_label, $Rn"> {
5402 let Inst{26-23} = b_label{3-0};
5403 let Inst{22-20} = 0b110;
5404 let Inst{19-16} = Rn{3-0};
5405 let Inst{13-1} = 0b1000000000000;
5408 def t2BFLi : t2BF<(ins bflabel_u4:$b_label, bflabel_s18:$label, pred:$p),
5409 !strconcat("bfl", "${p}"), "$b_label, $label"> {
5413 let Inst{26-23} = b_label{3-0};
5414 let Inst{22-16} = label{17-11};
5416 let Inst{11} = label{0};
5417 let Inst{10-1} = label{10-1};
5420 def t2BFLr : t2BF<(ins bflabel_u4:$b_label, rGPR:$Rn, pred:$p),
5421 !strconcat("bflx", "${p}"), "$b_label, $Rn"> {
5425 let Inst{26-23} = b_label{3-0};
5426 let Inst{22-20} = 0b111;
5427 let Inst{19-16} = Rn{3-0};
5428 let Inst{13-1} = 0b1000000000000;
5431 class t2LOL<dag oops, dag iops, string asm, string ops>
5432 : V8_1MI<oops, iops, AddrModeNone, NoItinerary, asm, ops, "", [] > {
5433 let Inst{31-23} = 0b111100000;
5434 let Inst{15-14} = 0b11;
5436 let DecoderMethod = "DecodeLOLoop";
5437 let Predicates = [IsThumb2, HasV8_1MMainline, HasLOB];
5440 let isNotDuplicable = 1 in {
5441 def t2WLS : t2LOL<(outs GPRlr:$LR),
5442 (ins rGPR:$Rn, wlslabel_u11:$label),
5443 "wls", "$LR, $Rn, $label"> {
5446 let Inst{22-20} = 0b100;
5447 let Inst{19-16} = Rn{3-0};
5448 let Inst{13-12} = 0b00;
5449 let Inst{11} = label{0};
5450 let Inst{10-1} = label{10-1};
5451 let usesCustomInserter = 1;
5453 let isTerminator = 1;
5456 def t2DLS : t2LOL<(outs GPRlr:$LR), (ins rGPR:$Rn),
5457 "dls", "$LR, $Rn"> {
5459 let Inst{22-20} = 0b100;
5460 let Inst{19-16} = Rn{3-0};
5461 let Inst{13-1} = 0b1000000000000;
5462 let usesCustomInserter = 1;
5465 def t2LEUpdate : t2LOL<(outs GPRlr:$LRout),
5466 (ins GPRlr:$LRin, lelabel_u11:$label),
5467 "le", "$LRin, $label"> {
5469 let Inst{22-16} = 0b0001111;
5470 let Inst{13-12} = 0b00;
5471 let Inst{11} = label{0};
5472 let Inst{10-1} = label{10-1};
5473 let usesCustomInserter = 1;
5475 let isTerminator = 1;
5478 def t2LE : t2LOL<(outs ), (ins lelabel_u11:$label), "le", "$label"> {
5480 let Inst{22-16} = 0b0101111;
5481 let Inst{13-12} = 0b00;
5482 let Inst{11} = label{0};
5483 let Inst{10-1} = label{10-1};
5485 let isTerminator = 1;
5488 let Predicates = [IsThumb2, HasV8_1MMainline, HasLOB] in {
5490 // t2DoLoopStart a pseudo for DLS hardware loops. Lowered into a DLS in
5491 // ARMLowOverheadLoops if possible, or reverted to a Mov if not.
5493 t2PseudoInst<(outs GPRlr:$X), (ins rGPR:$tc), 4, IIC_Br,
5494 [(set GPRlr:$X, (int_start_loop_iterations rGPR:$tc))]>;
5496 // A pseudo for a DLSTP, created in the MVETPAndVPTOptimizationPass from a
5497 // t2DoLoopStart if the loops is tail predicated. Holds both the element
5498 // count and trip count of the loop, picking the correct one during
5499 // ARMLowOverheadLoops when it is converted to a DLSTP or DLS as required.
5500 let isTerminator = 1, hasSideEffects = 1 in
5501 def t2DoLoopStartTP :
5502 t2PseudoInst<(outs GPRlr:$X), (ins rGPR:$tc, rGPR:$elts), 4, IIC_Br, []>;
5504 // Setup for a t2WhileLoopStart. A pair of t2WhileLoopSetup and t2WhileLoopStart
5505 // will be created post-ISel from a llvm.test.start.loop.iterations. This
5506 // t2WhileLoopSetup to setup LR and t2WhileLoopStart to perform the branch. Not
5507 // valid after reg alloc, as it should be lowered during MVETPAndVPTOptimisations
5508 // into a t2WhileLoopStartLR (or expanded).
5509 def t2WhileLoopSetup :
5510 t2PseudoInst<(outs GPRlr:$lr), (ins rGPR:$tc), 4, IIC_Br, []>;
5512 // A pseudo to represent the decrement in a low overhead loop. A t2LoopDec and
5513 // t2LoopEnd together represent a LE instruction. Ideally these are converted
5514 // to a t2LoopEndDec which is lowered as a single instruction.
5515 let hasSideEffects = 0 in
5517 t2PseudoInst<(outs GPRlr:$Rm), (ins GPRlr:$Rn, imm0_7:$size),
5518 4, IIC_Br, []>, Sched<[WriteBr]>;
5520 let isBranch = 1, isTerminator = 1, hasSideEffects = 1, Defs = [CPSR] in {
5521 // The branch in a t2WhileLoopSetup/t2WhileLoopStart pair, eventually turned
5522 // into a t2WhileLoopStartLR that does both the LR setup and branch.
5523 def t2WhileLoopStart :
5524 t2PseudoInst<(outs),
5525 (ins GPRlr:$tc, brtarget:$target),
5529 // WhileLoopStartLR that sets up LR and branches on zero, equivalent to WLS. It
5530 // is lowered in the ARMLowOverheadLoops pass providing the branches are within
5531 // range. WhileLoopStartLR and LoopEnd to occupy 8 bytes because they may get
5532 // converted into t2CMP and t2Bcc.
5533 def t2WhileLoopStartLR :
5534 t2PseudoInst<(outs GPRlr:$lr),
5535 (ins rGPR:$tc, brtarget:$target),
5539 // Similar to a t2DoLoopStartTP, a t2WhileLoopStartTP is a pseudo for a WLSTP
5540 // holding both the element count and the tripcount of the loop.
5541 def t2WhileLoopStartTP :
5542 t2PseudoInst<(outs GPRlr:$lr),
5543 (ins rGPR:$tc, rGPR:$elts, brtarget:$target),
5547 // t2LoopEnd - the branch half of a t2LoopDec/t2LoopEnd pair.
5549 t2PseudoInst<(outs), (ins GPRlr:$tc, brtarget:$target),
5550 8, IIC_Br, []>, Sched<[WriteBr]>;
5552 // The combination of a t2LoopDec and t2LoopEnd, performing both the LR
5553 // decrement and branch as a single instruction. Is lowered to a LE or
5554 // LETP in ARMLowOverheadLoops as appropriate, or converted to t2CMP/t2Bcc
5555 // if the branches are out of range.
5557 t2PseudoInst<(outs GPRlr:$Rm), (ins GPRlr:$tc, brtarget:$target),
5558 8, IIC_Br, []>, Sched<[WriteBr]>;
5560 } // end isBranch, isTerminator, hasSideEffects
5564 } // end isNotDuplicable
5566 class CS<string iname, bits<4> opcode, list<dag> pattern=[]>
5567 : V8_1MI<(outs rGPR:$Rd), (ins GPRwithZRnosp:$Rn, GPRwithZRnosp:$Rm, pred_noal:$fcond),
5568 AddrModeNone, NoItinerary, iname, "$Rd, $Rn, $Rm, $fcond", "", pattern> {
5574 let Inst{31-20} = 0b111010100101;
5575 let Inst{19-16} = Rn{3-0};
5576 let Inst{15-12} = opcode;
5577 let Inst{11-8} = Rd{3-0};
5578 let Inst{7-4} = fcond{3-0};
5579 let Inst{3-0} = Rm{3-0};
5582 let hasSideEffects = 0;
5585 def t2CSEL : CS<"csel", 0b1000>;
5586 def t2CSINC : CS<"csinc", 0b1001>;
5587 def t2CSINV : CS<"csinv", 0b1010>;
5588 def t2CSNEG : CS<"csneg", 0b1011>;
5591 let Predicates = [HasV8_1MMainline] in {
5592 multiclass CSPats<SDNode Node, Instruction Insn> {
5593 def : T2Pat<(Node GPRwithZR:$tval, GPRwithZR:$fval, imm0_31:$imm),
5594 (Insn GPRwithZR:$tval, GPRwithZR:$fval, imm0_31:$imm)>;
5595 def : T2Pat<(Node (i32 0), GPRwithZR:$fval, imm0_31:$imm),
5596 (Insn ZR, GPRwithZR:$fval, imm0_31:$imm)>;
5597 def : T2Pat<(Node GPRwithZR:$tval, (i32 0), imm0_31:$imm),
5598 (Insn GPRwithZR:$tval, ZR, imm0_31:$imm)>;
5599 def : T2Pat<(Node (i32 0), (i32 0), imm0_31:$imm),
5600 (Insn ZR, ZR, imm0_31:$imm)>;
5603 defm : CSPats<ARMcsinc, t2CSINC>;
5604 defm : CSPats<ARMcsinv, t2CSINV>;
5605 defm : CSPats<ARMcsneg, t2CSNEG>;
5607 multiclass ModifiedV8_1CSEL<Instruction Insn, dag modvalue> {
5608 def : T2Pat<(ARMcmov modvalue, GPRwithZR:$tval, cmovpred:$imm),
5609 (Insn GPRwithZR:$tval, GPRwithZR:$fval, imm0_31:$imm)>;
5610 def : T2Pat<(ARMcmov GPRwithZR:$tval, modvalue, cmovpred:$imm),
5611 (Insn GPRwithZR:$tval, GPRwithZR:$fval,
5612 (i32 (inv_cond_XFORM imm:$imm)))>;
5614 defm : ModifiedV8_1CSEL<t2CSINC, (add rGPR:$fval, 1)>;
5615 defm : ModifiedV8_1CSEL<t2CSINV, (xor rGPR:$fval, -1)>;
5616 defm : ModifiedV8_1CSEL<t2CSNEG, (sub 0, rGPR:$fval)>;
5620 let Predicates = [HasV8_1MMainline] in {
5621 def : InstAlias<"csetm\t$Rd, $fcond",
5622 (t2CSINV rGPR:$Rd, ZR, ZR, pred_noal_inv:$fcond)>;
5624 def : InstAlias<"cset\t$Rd, $fcond",
5625 (t2CSINC rGPR:$Rd, ZR, ZR, pred_noal_inv:$fcond)>;
5627 def : InstAlias<"cinc\t$Rd, $Rn, $fcond",
5628 (t2CSINC rGPR:$Rd, GPRwithZRnosp:$Rn, GPRwithZRnosp:$Rn, pred_noal_inv:$fcond)>;
5630 def : InstAlias<"cinv\t$Rd, $Rn, $fcond",
5631 (t2CSINV rGPR:$Rd, GPRwithZRnosp:$Rn, GPRwithZRnosp:$Rn, pred_noal_inv:$fcond)>;
5633 def : InstAlias<"cneg\t$Rd, $Rn, $fcond",
5634 (t2CSNEG rGPR:$Rd, GPRwithZRnosp:$Rn, GPRwithZRnosp:$Rn, pred_noal_inv:$fcond)>;