1 //===-- ARMInstrThumb2.td - Thumb2 support for ARM ---------*- tablegen -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file describes the Thumb2 instruction set.
12 //===----------------------------------------------------------------------===//
14 // IT block predicate field
15 def it_pred_asmoperand : AsmOperandClass {
16 let Name = "ITCondCode";
17 let ParserMethod = "parseITCondCode";
19 def it_pred : Operand<i32> {
20 let PrintMethod = "printMandatoryPredicateOperand";
21 let ParserMatchClass = it_pred_asmoperand;
24 // IT block condition mask
25 def it_mask_asmoperand : AsmOperandClass { let Name = "ITMask"; }
26 def it_mask : Operand<i32> {
27 let PrintMethod = "printThumbITMask";
28 let ParserMatchClass = it_mask_asmoperand;
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 // Shifted operands. No register controlled shifts for Thumb2.
44 // Note: We do not support rrx shifted operands yet.
45 def t2_so_reg : Operand<i32>, // reg imm
46 ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
48 let EncoderMethod = "getT2SORegOpValue";
49 let PrintMethod = "printT2SOOperand";
50 let DecoderMethod = "DecodeSORegImmOperand";
51 let ParserMatchClass = ShiftedImmAsmOperand;
52 let MIOperandInfo = (ops rGPR, i32imm);
55 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
56 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
57 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
60 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
61 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
62 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), MVT::i32);
65 // so_imm_notSext_XFORM - Return a so_imm value packed into the format
66 // described for so_imm_notSext def below, with sign extension from 16
68 def t2_so_imm_notSext16_XFORM : SDNodeXForm<imm, [{
69 APInt apIntN = N->getAPIntValue();
70 unsigned N16bitSignExt = apIntN.trunc(16).sext(32).getZExtValue();
71 return CurDAG->getTargetConstant(~N16bitSignExt, MVT::i32);
74 // t2_so_imm - Match a 32-bit immediate operand, which is an
75 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
76 // immediate splatted into multiple bytes of the word.
77 def t2_so_imm_asmoperand : ImmAsmOperand { let Name = "T2SOImm"; }
78 def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{
79 return ARM_AM::getT2SOImmVal(Imm) != -1;
81 let ParserMatchClass = t2_so_imm_asmoperand;
82 let EncoderMethod = "getT2SOImmOpValue";
83 let DecoderMethod = "DecodeT2SOImm";
86 // t2_so_imm_not - Match an immediate that is a complement
88 // Note: this pattern doesn't require an encoder method and such, as it's
89 // only used on aliases (Pat<> and InstAlias<>). The actual encoding
90 // is handled by the destination instructions, which use t2_so_imm.
91 def t2_so_imm_not_asmoperand : AsmOperandClass { let Name = "T2SOImmNot"; }
92 def t2_so_imm_not : Operand<i32>, PatLeaf<(imm), [{
93 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
94 }], t2_so_imm_not_XFORM> {
95 let ParserMatchClass = t2_so_imm_not_asmoperand;
98 // t2_so_imm_notSext - match an immediate that is a complement of a t2_so_imm
99 // if the upper 16 bits are zero.
100 def t2_so_imm_notSext : Operand<i32>, PatLeaf<(imm), [{
101 APInt apIntN = N->getAPIntValue();
102 if (!apIntN.isIntN(16)) return false;
103 unsigned N16bitSignExt = apIntN.trunc(16).sext(32).getZExtValue();
104 return ARM_AM::getT2SOImmVal(~N16bitSignExt) != -1;
105 }], t2_so_imm_notSext16_XFORM> {
106 let ParserMatchClass = t2_so_imm_not_asmoperand;
109 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
110 def t2_so_imm_neg_asmoperand : AsmOperandClass { let Name = "T2SOImmNeg"; }
111 def t2_so_imm_neg : Operand<i32>, PatLeaf<(imm), [{
112 int64_t Value = -(int)N->getZExtValue();
113 return Value && ARM_AM::getT2SOImmVal(Value) != -1;
114 }], t2_so_imm_neg_XFORM> {
115 let ParserMatchClass = t2_so_imm_neg_asmoperand;
118 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
119 def imm0_4095_asmoperand: ImmAsmOperand { let Name = "Imm0_4095"; }
120 def imm0_4095 : Operand<i32>, ImmLeaf<i32, [{
121 return Imm >= 0 && Imm < 4096;
123 let ParserMatchClass = imm0_4095_asmoperand;
126 def imm0_4095_neg_asmoperand: AsmOperandClass { let Name = "Imm0_4095Neg"; }
127 def imm0_4095_neg : Operand<i32>, PatLeaf<(i32 imm), [{
128 return (uint32_t)(-N->getZExtValue()) < 4096;
130 let ParserMatchClass = imm0_4095_neg_asmoperand;
133 def imm1_255_neg : PatLeaf<(i32 imm), [{
134 uint32_t Val = -N->getZExtValue();
135 return (Val > 0 && Val < 255);
138 def imm0_255_not : PatLeaf<(i32 imm), [{
139 return (uint32_t)(~N->getZExtValue()) < 255;
142 def lo5AllOne : PatLeaf<(i32 imm), [{
143 // Returns true if all low 5-bits are 1.
144 return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL;
147 // Define Thumb2 specific addressing modes.
149 // t2addrmode_imm12 := reg + imm12
150 def t2addrmode_imm12_asmoperand : AsmOperandClass {let Name="MemUImm12Offset";}
151 def t2addrmode_imm12 : Operand<i32>,
152 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
153 let PrintMethod = "printAddrModeImm12Operand<false>";
154 let EncoderMethod = "getAddrModeImm12OpValue";
155 let DecoderMethod = "DecodeT2AddrModeImm12";
156 let ParserMatchClass = t2addrmode_imm12_asmoperand;
157 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
160 // t2ldrlabel := imm12
161 def t2ldrlabel : Operand<i32> {
162 let EncoderMethod = "getAddrModeImm12OpValue";
163 let PrintMethod = "printThumbLdrLabelOperand";
166 def t2ldr_pcrel_imm12_asmoperand : AsmOperandClass {let Name = "MemPCRelImm12";}
167 def t2ldr_pcrel_imm12 : Operand<i32> {
168 let ParserMatchClass = t2ldr_pcrel_imm12_asmoperand;
169 // used for assembler pseudo instruction and maps to t2ldrlabel, so
170 // doesn't need encoder or print methods of its own.
173 // ADR instruction labels.
174 def t2adrlabel : Operand<i32> {
175 let EncoderMethod = "getT2AdrLabelOpValue";
176 let PrintMethod = "printAdrLabelOperand";
180 // t2addrmode_posimm8 := reg + imm8
181 def MemPosImm8OffsetAsmOperand : AsmOperandClass {let Name="MemPosImm8Offset";}
182 def t2addrmode_posimm8 : Operand<i32> {
183 let PrintMethod = "printT2AddrModeImm8Operand";
184 let EncoderMethod = "getT2AddrModeImm8OpValue";
185 let DecoderMethod = "DecodeT2AddrModeImm8";
186 let ParserMatchClass = MemPosImm8OffsetAsmOperand;
187 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
190 // t2addrmode_negimm8 := reg - imm8
191 def MemNegImm8OffsetAsmOperand : AsmOperandClass {let Name="MemNegImm8Offset";}
192 def t2addrmode_negimm8 : Operand<i32>,
193 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
194 let PrintMethod = "printT2AddrModeImm8Operand";
195 let EncoderMethod = "getT2AddrModeImm8OpValue";
196 let DecoderMethod = "DecodeT2AddrModeImm8";
197 let ParserMatchClass = MemNegImm8OffsetAsmOperand;
198 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
201 // t2addrmode_imm8 := reg +/- imm8
202 def MemImm8OffsetAsmOperand : AsmOperandClass { let Name = "MemImm8Offset"; }
203 def t2addrmode_imm8 : Operand<i32>,
204 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
205 let PrintMethod = "printT2AddrModeImm8Operand";
206 let EncoderMethod = "getT2AddrModeImm8OpValue";
207 let DecoderMethod = "DecodeT2AddrModeImm8";
208 let ParserMatchClass = MemImm8OffsetAsmOperand;
209 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
212 def t2am_imm8_offset : Operand<i32>,
213 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
214 [], [SDNPWantRoot]> {
215 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
216 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
217 let DecoderMethod = "DecodeT2Imm8";
220 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
221 def MemImm8s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm8s4Offset";}
222 def t2addrmode_imm8s4 : Operand<i32> {
223 let PrintMethod = "printT2AddrModeImm8s4Operand";
224 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
225 let DecoderMethod = "DecodeT2AddrModeImm8s4";
226 let ParserMatchClass = MemImm8s4OffsetAsmOperand;
227 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
230 def t2am_imm8s4_offset_asmoperand : AsmOperandClass { let Name = "Imm8s4"; }
231 def t2am_imm8s4_offset : Operand<i32> {
232 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
233 let EncoderMethod = "getT2Imm8s4OpValue";
234 let DecoderMethod = "DecodeT2Imm8S4";
237 // t2addrmode_imm0_1020s4 := reg + (imm8 << 2)
238 def MemImm0_1020s4OffsetAsmOperand : AsmOperandClass {
239 let Name = "MemImm0_1020s4Offset";
241 def t2addrmode_imm0_1020s4 : Operand<i32> {
242 let PrintMethod = "printT2AddrModeImm0_1020s4Operand";
243 let EncoderMethod = "getT2AddrModeImm0_1020s4OpValue";
244 let DecoderMethod = "DecodeT2AddrModeImm0_1020s4";
245 let ParserMatchClass = MemImm0_1020s4OffsetAsmOperand;
246 let MIOperandInfo = (ops GPRnopc:$base, i32imm:$offsimm);
249 // t2addrmode_so_reg := reg + (reg << imm2)
250 def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";}
251 def t2addrmode_so_reg : Operand<i32>,
252 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
253 let PrintMethod = "printT2AddrModeSoRegOperand";
254 let EncoderMethod = "getT2AddrModeSORegOpValue";
255 let DecoderMethod = "DecodeT2AddrModeSOReg";
256 let ParserMatchClass = t2addrmode_so_reg_asmoperand;
257 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
260 // Addresses for the TBB/TBH instructions.
261 def addrmode_tbb_asmoperand : AsmOperandClass { let Name = "MemTBB"; }
262 def addrmode_tbb : Operand<i32> {
263 let PrintMethod = "printAddrModeTBB";
264 let ParserMatchClass = addrmode_tbb_asmoperand;
265 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
267 def addrmode_tbh_asmoperand : AsmOperandClass { let Name = "MemTBH"; }
268 def addrmode_tbh : Operand<i32> {
269 let PrintMethod = "printAddrModeTBH";
270 let ParserMatchClass = addrmode_tbh_asmoperand;
271 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
274 //===----------------------------------------------------------------------===//
275 // Multiclass helpers...
279 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
280 string opc, string asm, list<dag> pattern>
281 : T2I<oops, iops, itin, opc, asm, pattern> {
286 let Inst{26} = imm{11};
287 let Inst{14-12} = imm{10-8};
288 let Inst{7-0} = imm{7-0};
292 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
293 string opc, string asm, list<dag> pattern>
294 : T2sI<oops, iops, itin, opc, asm, pattern> {
300 let Inst{26} = imm{11};
301 let Inst{14-12} = imm{10-8};
302 let Inst{7-0} = imm{7-0};
305 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
306 string opc, string asm, list<dag> pattern>
307 : T2I<oops, iops, itin, opc, asm, pattern> {
311 let Inst{19-16} = Rn;
312 let Inst{26} = imm{11};
313 let Inst{14-12} = imm{10-8};
314 let Inst{7-0} = imm{7-0};
318 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
319 string opc, string asm, list<dag> pattern>
320 : T2I<oops, iops, itin, opc, asm, pattern> {
325 let Inst{3-0} = ShiftedRm{3-0};
326 let Inst{5-4} = ShiftedRm{6-5};
327 let Inst{14-12} = ShiftedRm{11-9};
328 let Inst{7-6} = ShiftedRm{8-7};
331 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
332 string opc, string asm, list<dag> pattern>
333 : T2sI<oops, iops, itin, opc, asm, pattern> {
338 let Inst{3-0} = ShiftedRm{3-0};
339 let Inst{5-4} = ShiftedRm{6-5};
340 let Inst{14-12} = ShiftedRm{11-9};
341 let Inst{7-6} = ShiftedRm{8-7};
344 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
345 string opc, string asm, list<dag> pattern>
346 : T2I<oops, iops, itin, opc, asm, pattern> {
350 let Inst{19-16} = Rn;
351 let Inst{3-0} = ShiftedRm{3-0};
352 let Inst{5-4} = ShiftedRm{6-5};
353 let Inst{14-12} = ShiftedRm{11-9};
354 let Inst{7-6} = ShiftedRm{8-7};
357 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
358 string opc, string asm, list<dag> pattern>
359 : T2I<oops, iops, itin, opc, asm, pattern> {
367 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
368 string opc, string asm, list<dag> pattern>
369 : T2sI<oops, iops, itin, opc, asm, pattern> {
377 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
378 string opc, string asm, list<dag> pattern>
379 : T2I<oops, iops, itin, opc, asm, pattern> {
383 let Inst{19-16} = Rn;
388 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
389 string opc, string asm, list<dag> pattern>
390 : T2I<oops, iops, itin, opc, asm, pattern> {
396 let Inst{19-16} = Rn;
397 let Inst{26} = imm{11};
398 let Inst{14-12} = imm{10-8};
399 let Inst{7-0} = imm{7-0};
402 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
403 string opc, string asm, list<dag> pattern>
404 : T2sI<oops, iops, itin, opc, asm, pattern> {
410 let Inst{19-16} = Rn;
411 let Inst{26} = imm{11};
412 let Inst{14-12} = imm{10-8};
413 let Inst{7-0} = imm{7-0};
416 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
417 string opc, string asm, list<dag> pattern>
418 : T2I<oops, iops, itin, opc, asm, pattern> {
425 let Inst{14-12} = imm{4-2};
426 let Inst{7-6} = imm{1-0};
429 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
430 string opc, string asm, list<dag> pattern>
431 : T2sI<oops, iops, itin, opc, asm, pattern> {
438 let Inst{14-12} = imm{4-2};
439 let Inst{7-6} = imm{1-0};
442 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
443 string opc, string asm, list<dag> pattern>
444 : T2I<oops, iops, itin, opc, asm, pattern> {
450 let Inst{19-16} = Rn;
454 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
455 string opc, string asm, list<dag> pattern>
456 : T2sI<oops, iops, itin, opc, asm, pattern> {
462 let Inst{19-16} = Rn;
466 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
467 string opc, string asm, list<dag> pattern>
468 : T2I<oops, iops, itin, opc, asm, pattern> {
474 let Inst{19-16} = Rn;
475 let Inst{3-0} = ShiftedRm{3-0};
476 let Inst{5-4} = ShiftedRm{6-5};
477 let Inst{14-12} = ShiftedRm{11-9};
478 let Inst{7-6} = ShiftedRm{8-7};
481 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
482 string opc, string asm, list<dag> pattern>
483 : T2sI<oops, iops, itin, opc, asm, pattern> {
489 let Inst{19-16} = Rn;
490 let Inst{3-0} = ShiftedRm{3-0};
491 let Inst{5-4} = ShiftedRm{6-5};
492 let Inst{14-12} = ShiftedRm{11-9};
493 let Inst{7-6} = ShiftedRm{8-7};
496 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
497 string opc, string asm, list<dag> pattern>
498 : T2I<oops, iops, itin, opc, asm, pattern> {
504 let Inst{19-16} = Rn;
505 let Inst{15-12} = Ra;
510 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
511 dag oops, dag iops, InstrItinClass itin,
512 string opc, string asm, list<dag> pattern>
513 : T2I<oops, iops, itin, opc, asm, pattern> {
519 let Inst{31-23} = 0b111110111;
520 let Inst{22-20} = opc22_20;
521 let Inst{19-16} = Rn;
522 let Inst{15-12} = RdLo;
523 let Inst{11-8} = RdHi;
524 let Inst{7-4} = opc7_4;
527 class T2MlaLong<bits<3> opc22_20, bits<4> opc7_4,
528 dag oops, dag iops, InstrItinClass itin,
529 string opc, string asm, list<dag> pattern>
530 : T2I<oops, iops, itin, opc, asm, pattern> {
536 let Inst{31-23} = 0b111110111;
537 let Inst{22-20} = opc22_20;
538 let Inst{19-16} = Rn;
539 let Inst{15-12} = RdLo;
540 let Inst{11-8} = RdHi;
541 let Inst{7-4} = opc7_4;
546 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
547 /// binary operation that produces a value. These are predicable and can be
548 /// changed to modify CPSR.
549 multiclass T2I_bin_irs<bits<4> opcod, string opc,
550 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
551 PatFrag opnode, bit Commutable = 0,
554 def ri : T2sTwoRegImm<
555 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
556 opc, "\t$Rd, $Rn, $imm",
557 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
558 Sched<[WriteALU, ReadALU]> {
559 let Inst{31-27} = 0b11110;
561 let Inst{24-21} = opcod;
565 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
566 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
567 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
568 Sched<[WriteALU, ReadALU, ReadALU]> {
569 let isCommutable = Commutable;
570 let Inst{31-27} = 0b11101;
571 let Inst{26-25} = 0b01;
572 let Inst{24-21} = opcod;
573 let Inst{14-12} = 0b000; // imm3
574 let Inst{7-6} = 0b00; // imm2
575 let Inst{5-4} = 0b00; // type
578 def rs : T2sTwoRegShiftedReg<
579 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
580 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
581 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
582 Sched<[WriteALUsi, ReadALU]> {
583 let Inst{31-27} = 0b11101;
584 let Inst{26-25} = 0b01;
585 let Inst{24-21} = opcod;
587 // Assembly aliases for optional destination operand when it's the same
588 // as the source operand.
589 def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
590 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn,
591 t2_so_imm:$imm, pred:$p,
593 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
594 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn,
597 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
598 (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn,
599 t2_so_reg:$shift, pred:$p,
603 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
604 // the ".w" suffix to indicate that they are wide.
605 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
606 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
607 PatFrag opnode, bit Commutable = 0> :
608 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w"> {
609 // Assembler aliases w/ the ".w" suffix.
610 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rd, $Rn, $imm"),
611 (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p,
613 // Assembler aliases w/o the ".w" suffix.
614 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
615 (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
617 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"),
618 (!cast<Instruction>(NAME#"rs") rGPR:$Rd, rGPR:$Rn, t2_so_reg:$shift,
619 pred:$p, cc_out:$s)>;
621 // and with the optional destination operand, too.
622 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rdn, $imm"),
623 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm,
624 pred:$p, cc_out:$s)>;
625 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
626 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
628 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"),
629 (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$shift,
630 pred:$p, cc_out:$s)>;
633 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
634 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
635 /// it is equivalent to the T2I_bin_irs counterpart.
636 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
638 def ri : T2sTwoRegImm<
639 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
640 opc, ".w\t$Rd, $Rn, $imm",
641 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]>,
642 Sched<[WriteALU, ReadALU]> {
643 let Inst{31-27} = 0b11110;
645 let Inst{24-21} = opcod;
649 def rr : T2sThreeReg<
650 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
651 opc, "\t$Rd, $Rn, $Rm",
652 [/* For disassembly only; pattern left blank */]>,
653 Sched<[WriteALU, ReadALU, ReadALU]> {
654 let Inst{31-27} = 0b11101;
655 let Inst{26-25} = 0b01;
656 let Inst{24-21} = opcod;
657 let Inst{14-12} = 0b000; // imm3
658 let Inst{7-6} = 0b00; // imm2
659 let Inst{5-4} = 0b00; // type
662 def rs : T2sTwoRegShiftedReg<
663 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
664 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
665 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]>,
666 Sched<[WriteALUsi, ReadALU]> {
667 let Inst{31-27} = 0b11101;
668 let Inst{26-25} = 0b01;
669 let Inst{24-21} = opcod;
673 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
674 /// instruction modifies the CPSR register.
676 /// These opcodes will be converted to the real non-S opcodes by
677 /// AdjustInstrPostInstrSelection after giving then an optional CPSR operand.
678 let hasPostISelHook = 1, Defs = [CPSR] in {
679 multiclass T2I_bin_s_irs<InstrItinClass iii, InstrItinClass iir,
680 InstrItinClass iis, PatFrag opnode,
681 bit Commutable = 0> {
683 def ri : t2PseudoInst<(outs rGPR:$Rd),
684 (ins GPRnopc:$Rn, t2_so_imm:$imm, pred:$p),
686 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
688 Sched<[WriteALU, ReadALU]>;
690 def rr : t2PseudoInst<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm, pred:$p),
692 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
694 Sched<[WriteALU, ReadALU, ReadALU]> {
695 let isCommutable = Commutable;
698 def rs : t2PseudoInst<(outs rGPR:$Rd),
699 (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
701 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
702 t2_so_reg:$ShiftedRm))]>,
703 Sched<[WriteALUsi, ReadALUsr]>;
707 /// T2I_rbin_s_is - Same as T2I_bin_s_irs, except selection DAG
708 /// operands are reversed.
709 let hasPostISelHook = 1, Defs = [CPSR] in {
710 multiclass T2I_rbin_s_is<PatFrag opnode> {
712 def ri : t2PseudoInst<(outs rGPR:$Rd),
713 (ins rGPR:$Rn, t2_so_imm:$imm, pred:$p),
715 [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm,
717 Sched<[WriteALU, ReadALU]>;
719 def rs : t2PseudoInst<(outs rGPR:$Rd),
720 (ins rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
722 [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm,
724 Sched<[WriteALUsi, ReadALU]>;
728 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
729 /// patterns for a binary operation that produces a value.
730 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
731 bit Commutable = 0> {
733 // The register-immediate version is re-materializable. This is useful
734 // in particular for taking the address of a local.
735 let isReMaterializable = 1 in {
736 def ri : T2sTwoRegImm<
737 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
738 opc, ".w\t$Rd, $Rn, $imm",
739 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]>,
740 Sched<[WriteALU, ReadALU]> {
741 let Inst{31-27} = 0b11110;
744 let Inst{23-21} = op23_21;
750 (outs GPRnopc:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
751 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
752 [(set GPRnopc:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]>,
753 Sched<[WriteALU, ReadALU]> {
757 let Inst{31-27} = 0b11110;
758 let Inst{26} = imm{11};
759 let Inst{25-24} = 0b10;
760 let Inst{23-21} = op23_21;
761 let Inst{20} = 0; // The S bit.
762 let Inst{19-16} = Rn;
764 let Inst{14-12} = imm{10-8};
766 let Inst{7-0} = imm{7-0};
769 def rr : T2sThreeReg<(outs GPRnopc:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm),
770 IIC_iALUr, opc, ".w\t$Rd, $Rn, $Rm",
771 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]>,
772 Sched<[WriteALU, ReadALU, ReadALU]> {
773 let isCommutable = Commutable;
774 let Inst{31-27} = 0b11101;
775 let Inst{26-25} = 0b01;
777 let Inst{23-21} = op23_21;
778 let Inst{14-12} = 0b000; // imm3
779 let Inst{7-6} = 0b00; // imm2
780 let Inst{5-4} = 0b00; // type
783 def rs : T2sTwoRegShiftedReg<
784 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
785 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
786 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]>,
787 Sched<[WriteALUsi, ReadALU]> {
788 let Inst{31-27} = 0b11101;
789 let Inst{26-25} = 0b01;
791 let Inst{23-21} = op23_21;
795 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
796 /// for a binary operation that produces a value and use the carry
797 /// bit. It's not predicable.
798 let Defs = [CPSR], Uses = [CPSR] in {
799 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
800 bit Commutable = 0> {
802 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
803 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
804 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_imm:$imm, CPSR))]>,
805 Requires<[IsThumb2]>, Sched<[WriteALU, ReadALU]> {
806 let Inst{31-27} = 0b11110;
808 let Inst{24-21} = opcod;
812 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
813 opc, ".w\t$Rd, $Rn, $Rm",
814 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, rGPR:$Rm, CPSR))]>,
815 Requires<[IsThumb2]>, Sched<[WriteALU, ReadALU, ReadALU]> {
816 let isCommutable = Commutable;
817 let Inst{31-27} = 0b11101;
818 let Inst{26-25} = 0b01;
819 let Inst{24-21} = opcod;
820 let Inst{14-12} = 0b000; // imm3
821 let Inst{7-6} = 0b00; // imm2
822 let Inst{5-4} = 0b00; // type
825 def rs : T2sTwoRegShiftedReg<
826 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
827 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
828 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm, CPSR))]>,
829 Requires<[IsThumb2]>, Sched<[WriteALUsi, ReadALU]> {
830 let Inst{31-27} = 0b11101;
831 let Inst{26-25} = 0b01;
832 let Inst{24-21} = opcod;
837 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
838 // rotate operation that produces a value.
839 multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, PatFrag opnode> {
841 def ri : T2sTwoRegShiftImm<
842 (outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi,
843 opc, ".w\t$Rd, $Rm, $imm",
844 [(set rGPR:$Rd, (opnode rGPR:$Rm, (i32 ty:$imm)))]>,
846 let Inst{31-27} = 0b11101;
847 let Inst{26-21} = 0b010010;
848 let Inst{19-16} = 0b1111; // Rn
849 let Inst{5-4} = opcod;
852 def rr : T2sThreeReg<
853 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
854 opc, ".w\t$Rd, $Rn, $Rm",
855 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
857 let Inst{31-27} = 0b11111;
858 let Inst{26-23} = 0b0100;
859 let Inst{22-21} = opcod;
860 let Inst{15-12} = 0b1111;
861 let Inst{7-4} = 0b0000;
864 // Optional destination register
865 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"),
866 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
868 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"),
869 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
872 // Assembler aliases w/o the ".w" suffix.
873 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"),
874 (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, ty:$imm, pred:$p,
876 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
877 (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
880 // and with the optional destination operand, too.
881 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"),
882 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
884 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
885 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
889 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
890 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
891 /// a explicit result, only implicitly set CPSR.
892 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
893 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
895 let isCompare = 1, Defs = [CPSR] in {
897 def ri : T2OneRegCmpImm<
898 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), iii,
899 opc, ".w\t$Rn, $imm",
900 [(opnode GPRnopc:$Rn, t2_so_imm:$imm)]>, Sched<[WriteCMP]> {
901 let Inst{31-27} = 0b11110;
903 let Inst{24-21} = opcod;
904 let Inst{20} = 1; // The S bit.
906 let Inst{11-8} = 0b1111; // Rd
909 def rr : T2TwoRegCmp<
910 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), iir,
912 [(opnode GPRnopc:$Rn, rGPR:$Rm)]>, Sched<[WriteCMP]> {
913 let Inst{31-27} = 0b11101;
914 let Inst{26-25} = 0b01;
915 let Inst{24-21} = opcod;
916 let Inst{20} = 1; // The S bit.
917 let Inst{14-12} = 0b000; // imm3
918 let Inst{11-8} = 0b1111; // Rd
919 let Inst{7-6} = 0b00; // imm2
920 let Inst{5-4} = 0b00; // type
923 def rs : T2OneRegCmpShiftedReg<
924 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), iis,
925 opc, ".w\t$Rn, $ShiftedRm",
926 [(opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]>,
927 Sched<[WriteCMPsi]> {
928 let Inst{31-27} = 0b11101;
929 let Inst{26-25} = 0b01;
930 let Inst{24-21} = opcod;
931 let Inst{20} = 1; // The S bit.
932 let Inst{11-8} = 0b1111; // Rd
936 // Assembler aliases w/o the ".w" suffix.
937 // No alias here for 'rr' version as not all instantiations of this
938 // multiclass want one (CMP in particular, does not).
939 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"),
940 (!cast<Instruction>(NAME#"ri") GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>;
941 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"),
942 (!cast<Instruction>(NAME#"rs") GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>;
945 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
946 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
947 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
949 def i12 : T2Ii12<(outs target:$Rt), (ins t2addrmode_imm12:$addr), iii,
950 opc, ".w\t$Rt, $addr",
951 [(set target:$Rt, (opnode t2addrmode_imm12:$addr))]> {
954 let Inst{31-25} = 0b1111100;
955 let Inst{24} = signed;
957 let Inst{22-21} = opcod;
958 let Inst{20} = 1; // load
959 let Inst{19-16} = addr{16-13}; // Rn
960 let Inst{15-12} = Rt;
961 let Inst{11-0} = addr{11-0}; // imm
963 let DecoderMethod = "DecodeT2LoadImm12";
965 def i8 : T2Ii8 <(outs target:$Rt), (ins t2addrmode_negimm8:$addr), iii,
967 [(set target:$Rt, (opnode t2addrmode_negimm8:$addr))]> {
970 let Inst{31-27} = 0b11111;
971 let Inst{26-25} = 0b00;
972 let Inst{24} = signed;
974 let Inst{22-21} = opcod;
975 let Inst{20} = 1; // load
976 let Inst{19-16} = addr{12-9}; // Rn
977 let Inst{15-12} = Rt;
979 // Offset: index==TRUE, wback==FALSE
980 let Inst{10} = 1; // The P bit.
981 let Inst{9} = addr{8}; // U
982 let Inst{8} = 0; // The W bit.
983 let Inst{7-0} = addr{7-0}; // imm
985 let DecoderMethod = "DecodeT2LoadImm8";
987 def s : T2Iso <(outs target:$Rt), (ins t2addrmode_so_reg:$addr), iis,
988 opc, ".w\t$Rt, $addr",
989 [(set target:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
990 let Inst{31-27} = 0b11111;
991 let Inst{26-25} = 0b00;
992 let Inst{24} = signed;
994 let Inst{22-21} = opcod;
995 let Inst{20} = 1; // load
996 let Inst{11-6} = 0b000000;
999 let Inst{15-12} = Rt;
1002 let Inst{19-16} = addr{9-6}; // Rn
1003 let Inst{3-0} = addr{5-2}; // Rm
1004 let Inst{5-4} = addr{1-0}; // imm
1006 let DecoderMethod = "DecodeT2LoadShift";
1009 // pci variant is very similar to i12, but supports negative offsets
1011 def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
1012 opc, ".w\t$Rt, $addr",
1013 [(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
1014 let isReMaterializable = 1;
1015 let Inst{31-27} = 0b11111;
1016 let Inst{26-25} = 0b00;
1017 let Inst{24} = signed;
1018 let Inst{23} = ?; // add = (U == '1')
1019 let Inst{22-21} = opcod;
1020 let Inst{20} = 1; // load
1021 let Inst{19-16} = 0b1111; // Rn
1024 let Inst{15-12} = Rt{3-0};
1025 let Inst{11-0} = addr{11-0};
1027 let DecoderMethod = "DecodeT2LoadLabel";
1031 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
1032 multiclass T2I_st<bits<2> opcod, string opc,
1033 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
1035 def i12 : T2Ii12<(outs), (ins target:$Rt, t2addrmode_imm12:$addr), iii,
1036 opc, ".w\t$Rt, $addr",
1037 [(opnode target:$Rt, t2addrmode_imm12:$addr)]> {
1038 let Inst{31-27} = 0b11111;
1039 let Inst{26-23} = 0b0001;
1040 let Inst{22-21} = opcod;
1041 let Inst{20} = 0; // !load
1044 let Inst{15-12} = Rt;
1047 let addr{12} = 1; // add = TRUE
1048 let Inst{19-16} = addr{16-13}; // Rn
1049 let Inst{23} = addr{12}; // U
1050 let Inst{11-0} = addr{11-0}; // imm
1052 def i8 : T2Ii8 <(outs), (ins target:$Rt, t2addrmode_negimm8:$addr), iii,
1053 opc, "\t$Rt, $addr",
1054 [(opnode target:$Rt, t2addrmode_negimm8:$addr)]> {
1055 let Inst{31-27} = 0b11111;
1056 let Inst{26-23} = 0b0000;
1057 let Inst{22-21} = opcod;
1058 let Inst{20} = 0; // !load
1060 // Offset: index==TRUE, wback==FALSE
1061 let Inst{10} = 1; // The P bit.
1062 let Inst{8} = 0; // The W bit.
1065 let Inst{15-12} = Rt;
1068 let Inst{19-16} = addr{12-9}; // Rn
1069 let Inst{9} = addr{8}; // U
1070 let Inst{7-0} = addr{7-0}; // imm
1072 def s : T2Iso <(outs), (ins target:$Rt, t2addrmode_so_reg:$addr), iis,
1073 opc, ".w\t$Rt, $addr",
1074 [(opnode target:$Rt, t2addrmode_so_reg:$addr)]> {
1075 let Inst{31-27} = 0b11111;
1076 let Inst{26-23} = 0b0000;
1077 let Inst{22-21} = opcod;
1078 let Inst{20} = 0; // !load
1079 let Inst{11-6} = 0b000000;
1082 let Inst{15-12} = Rt;
1085 let Inst{19-16} = addr{9-6}; // Rn
1086 let Inst{3-0} = addr{5-2}; // Rm
1087 let Inst{5-4} = addr{1-0}; // imm
1091 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
1092 /// register and one whose operand is a register rotated by 8/16/24.
1093 class T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode>
1094 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1095 opc, ".w\t$Rd, $Rm$rot",
1096 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1097 Requires<[IsThumb2]> {
1098 let Inst{31-27} = 0b11111;
1099 let Inst{26-23} = 0b0100;
1100 let Inst{22-20} = opcod;
1101 let Inst{19-16} = 0b1111; // Rn
1102 let Inst{15-12} = 0b1111;
1106 let Inst{5-4} = rot{1-0}; // rotate
1109 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
1110 class T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode>
1111 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot),
1112 IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
1113 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1114 Requires<[HasT2ExtractPack, IsThumb2]> {
1116 let Inst{31-27} = 0b11111;
1117 let Inst{26-23} = 0b0100;
1118 let Inst{22-20} = opcod;
1119 let Inst{19-16} = 0b1111; // Rn
1120 let Inst{15-12} = 0b1111;
1122 let Inst{5-4} = rot;
1125 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1127 class T2I_ext_rrot_sxtb16<bits<3> opcod, string opc>
1128 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1129 opc, "\t$Rd, $Rm$rot", []>,
1130 Requires<[IsThumb2, HasT2ExtractPack]> {
1132 let Inst{31-27} = 0b11111;
1133 let Inst{26-23} = 0b0100;
1134 let Inst{22-20} = opcod;
1135 let Inst{19-16} = 0b1111; // Rn
1136 let Inst{15-12} = 0b1111;
1138 let Inst{5-4} = rot;
1141 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1142 /// register and one whose operand is a register rotated by 8/16/24.
1143 class T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode>
1144 : T2ThreeReg<(outs rGPR:$Rd),
1145 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1146 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot",
1147 [(set rGPR:$Rd, (opnode rGPR:$Rn, (rotr rGPR:$Rm,rot_imm:$rot)))]>,
1148 Requires<[HasT2ExtractPack, IsThumb2]> {
1150 let Inst{31-27} = 0b11111;
1151 let Inst{26-23} = 0b0100;
1152 let Inst{22-20} = opcod;
1153 let Inst{15-12} = 0b1111;
1155 let Inst{5-4} = rot;
1158 class T2I_exta_rrot_np<bits<3> opcod, string opc>
1159 : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm,rot_imm:$rot),
1160 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []> {
1162 let Inst{31-27} = 0b11111;
1163 let Inst{26-23} = 0b0100;
1164 let Inst{22-20} = opcod;
1165 let Inst{15-12} = 0b1111;
1167 let Inst{5-4} = rot;
1170 //===----------------------------------------------------------------------===//
1172 //===----------------------------------------------------------------------===//
1174 //===----------------------------------------------------------------------===//
1175 // Miscellaneous Instructions.
1178 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1179 string asm, list<dag> pattern>
1180 : T2XI<oops, iops, itin, asm, pattern> {
1184 let Inst{11-8} = Rd;
1185 let Inst{26} = label{11};
1186 let Inst{14-12} = label{10-8};
1187 let Inst{7-0} = label{7-0};
1190 // LEApcrel - Load a pc-relative address into a register without offending the
1192 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1193 (ins t2adrlabel:$addr, pred:$p),
1194 IIC_iALUi, "adr{$p}.w\t$Rd, $addr", []>,
1195 Sched<[WriteALU, ReadALU]> {
1196 let Inst{31-27} = 0b11110;
1197 let Inst{25-24} = 0b10;
1198 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1201 let Inst{19-16} = 0b1111; // Rn
1206 let Inst{11-8} = Rd;
1207 let Inst{23} = addr{12};
1208 let Inst{21} = addr{12};
1209 let Inst{26} = addr{11};
1210 let Inst{14-12} = addr{10-8};
1211 let Inst{7-0} = addr{7-0};
1213 let DecoderMethod = "DecodeT2Adr";
1216 let neverHasSideEffects = 1, isReMaterializable = 1 in
1217 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1218 4, IIC_iALUi, []>, Sched<[WriteALU, ReadALU]>;
1219 let hasSideEffects = 1 in
1220 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1221 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1223 []>, Sched<[WriteALU, ReadALU]>;
1226 //===----------------------------------------------------------------------===//
1227 // Load / store Instructions.
1231 let canFoldAsLoad = 1, isReMaterializable = 1 in
1232 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si, GPR,
1233 UnOpFrag<(load node:$Src)>>;
1235 // Loads with zero extension
1236 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1237 GPR, UnOpFrag<(zextloadi16 node:$Src)>>;
1238 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1239 GPR, UnOpFrag<(zextloadi8 node:$Src)>>;
1241 // Loads with sign extension
1242 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1243 GPR, UnOpFrag<(sextloadi16 node:$Src)>>;
1244 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1245 GPR, UnOpFrag<(sextloadi8 node:$Src)>>;
1247 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1249 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1250 (ins t2addrmode_imm8s4:$addr),
1251 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", "", []>;
1252 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1254 // zextload i1 -> zextload i8
1255 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1256 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1257 def : T2Pat<(zextloadi1 t2addrmode_negimm8:$addr),
1258 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1259 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1260 (t2LDRBs t2addrmode_so_reg:$addr)>;
1261 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1262 (t2LDRBpci tconstpool:$addr)>;
1264 // extload -> zextload
1265 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1267 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1268 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1269 def : T2Pat<(extloadi1 t2addrmode_negimm8:$addr),
1270 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1271 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1272 (t2LDRBs t2addrmode_so_reg:$addr)>;
1273 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1274 (t2LDRBpci tconstpool:$addr)>;
1276 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1277 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1278 def : T2Pat<(extloadi8 t2addrmode_negimm8:$addr),
1279 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1280 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1281 (t2LDRBs t2addrmode_so_reg:$addr)>;
1282 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1283 (t2LDRBpci tconstpool:$addr)>;
1285 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1286 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1287 def : T2Pat<(extloadi16 t2addrmode_negimm8:$addr),
1288 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
1289 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1290 (t2LDRHs t2addrmode_so_reg:$addr)>;
1291 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1292 (t2LDRHpci tconstpool:$addr)>;
1294 // FIXME: The destination register of the loads and stores can't be PC, but
1295 // can be SP. We need another regclass (similar to rGPR) to represent
1296 // that. Not a pressing issue since these are selected manually,
1301 let mayLoad = 1, neverHasSideEffects = 1 in {
1302 def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1303 (ins t2addrmode_imm8:$addr),
1304 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1305 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1307 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1310 def t2LDR_POST : T2Ipostldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1311 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1312 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1313 "ldr", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1315 def t2LDRB_PRE : T2Ipreldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1316 (ins t2addrmode_imm8:$addr),
1317 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1318 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1320 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1322 def t2LDRB_POST : T2Ipostldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1323 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1324 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1325 "ldrb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1327 def t2LDRH_PRE : T2Ipreldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1328 (ins t2addrmode_imm8:$addr),
1329 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1330 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1332 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1334 def t2LDRH_POST : T2Ipostldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1335 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1336 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1337 "ldrh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1339 def t2LDRSB_PRE : T2Ipreldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1340 (ins t2addrmode_imm8:$addr),
1341 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1342 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1344 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1346 def t2LDRSB_POST : T2Ipostldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1347 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1348 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1349 "ldrsb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1351 def t2LDRSH_PRE : T2Ipreldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1352 (ins t2addrmode_imm8:$addr),
1353 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1354 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1356 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1358 def t2LDRSH_POST : T2Ipostldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1359 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1360 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1361 "ldrsh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1362 } // mayLoad = 1, neverHasSideEffects = 1
1364 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110).
1365 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1366 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1367 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_posimm8:$addr), ii, opc,
1368 "\t$Rt, $addr", []> {
1371 let Inst{31-27} = 0b11111;
1372 let Inst{26-25} = 0b00;
1373 let Inst{24} = signed;
1375 let Inst{22-21} = type;
1376 let Inst{20} = 1; // load
1377 let Inst{19-16} = addr{12-9};
1378 let Inst{15-12} = Rt;
1380 let Inst{10-8} = 0b110; // PUW.
1381 let Inst{7-0} = addr{7-0};
1383 let DecoderMethod = "DecodeT2LoadT";
1386 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1387 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1388 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1389 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1390 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1393 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si, GPR,
1394 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1395 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1396 rGPR, BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1397 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1398 rGPR, BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1401 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1402 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1403 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1404 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", "", []>;
1408 let mayStore = 1, neverHasSideEffects = 1 in {
1409 def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
1410 (ins GPRnopc:$Rt, t2addrmode_imm8:$addr),
1411 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1412 "str", "\t$Rt, $addr!",
1413 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1414 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1416 def t2STRH_PRE : T2Ipreldst<0, 0b01, 0, 1, (outs GPRnopc:$Rn_wb),
1417 (ins rGPR:$Rt, t2addrmode_imm8:$addr),
1418 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1419 "strh", "\t$Rt, $addr!",
1420 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1421 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1424 def t2STRB_PRE : T2Ipreldst<0, 0b00, 0, 1, (outs GPRnopc:$Rn_wb),
1425 (ins rGPR:$Rt, t2addrmode_imm8:$addr),
1426 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1427 "strb", "\t$Rt, $addr!",
1428 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1429 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1431 } // mayStore = 1, neverHasSideEffects = 1
1433 def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
1434 (ins GPRnopc:$Rt, addr_offset_none:$Rn,
1435 t2am_imm8_offset:$offset),
1436 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1437 "str", "\t$Rt, $Rn$offset",
1438 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1439 [(set GPRnopc:$Rn_wb,
1440 (post_store GPRnopc:$Rt, addr_offset_none:$Rn,
1441 t2am_imm8_offset:$offset))]>;
1443 def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb),
1444 (ins rGPR:$Rt, addr_offset_none:$Rn,
1445 t2am_imm8_offset:$offset),
1446 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1447 "strh", "\t$Rt, $Rn$offset",
1448 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1449 [(set GPRnopc:$Rn_wb,
1450 (post_truncsti16 rGPR:$Rt, addr_offset_none:$Rn,
1451 t2am_imm8_offset:$offset))]>;
1453 def t2STRB_POST : T2Ipostldst<0, 0b00, 0, 0, (outs GPRnopc:$Rn_wb),
1454 (ins rGPR:$Rt, addr_offset_none:$Rn,
1455 t2am_imm8_offset:$offset),
1456 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1457 "strb", "\t$Rt, $Rn$offset",
1458 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1459 [(set GPRnopc:$Rn_wb,
1460 (post_truncsti8 rGPR:$Rt, addr_offset_none:$Rn,
1461 t2am_imm8_offset:$offset))]>;
1463 // Pseudo-instructions for pattern matching the pre-indexed stores. We can't
1464 // put the patterns on the instruction definitions directly as ISel wants
1465 // the address base and offset to be separate operands, not a single
1466 // complex operand like we represent the instructions themselves. The
1467 // pseudos map between the two.
1468 let usesCustomInserter = 1,
1469 Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in {
1470 def t2STR_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1471 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1473 [(set GPRnopc:$Rn_wb,
1474 (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1475 def t2STRB_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1476 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1478 [(set GPRnopc:$Rn_wb,
1479 (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1480 def t2STRH_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1481 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1483 [(set GPRnopc:$Rn_wb,
1484 (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1487 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1489 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1490 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1491 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1492 "\t$Rt, $addr", []> {
1493 let Inst{31-27} = 0b11111;
1494 let Inst{26-25} = 0b00;
1495 let Inst{24} = 0; // not signed
1497 let Inst{22-21} = type;
1498 let Inst{20} = 0; // store
1500 let Inst{10-8} = 0b110; // PUW
1504 let Inst{15-12} = Rt;
1505 let Inst{19-16} = addr{12-9};
1506 let Inst{7-0} = addr{7-0};
1509 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1510 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1511 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1513 // ldrd / strd pre / post variants
1514 // For disassembly only.
1516 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1517 (ins t2addrmode_imm8s4:$addr), IIC_iLoad_d_ru,
1518 "ldrd", "\t$Rt, $Rt2, $addr!", "$addr.base = $wb", []> {
1519 let AsmMatchConverter = "cvtT2LdrdPre";
1520 let DecoderMethod = "DecodeT2LDRDPreInstruction";
1523 def t2LDRD_POST : T2Ii8s4post<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1524 (ins addr_offset_none:$addr, t2am_imm8s4_offset:$imm),
1525 IIC_iLoad_d_ru, "ldrd", "\t$Rt, $Rt2, $addr$imm",
1526 "$addr.base = $wb", []>;
1528 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs GPR:$wb),
1529 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4:$addr),
1530 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr!",
1531 "$addr.base = $wb", []> {
1532 let AsmMatchConverter = "cvtT2StrdPre";
1533 let DecoderMethod = "DecodeT2STRDPreInstruction";
1536 def t2STRD_POST : T2Ii8s4post<0, 1, 0, (outs GPR:$wb),
1537 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr,
1538 t2am_imm8s4_offset:$imm),
1539 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr$imm",
1540 "$addr.base = $wb", []>;
1542 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1543 // data/instruction access.
1544 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1545 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1546 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1548 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1550 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]>,
1551 Sched<[WritePreLd]> {
1552 let Inst{31-25} = 0b1111100;
1553 let Inst{24} = instr;
1555 let Inst{21} = write;
1557 let Inst{15-12} = 0b1111;
1560 let addr{12} = 1; // add = TRUE
1561 let Inst{19-16} = addr{16-13}; // Rn
1562 let Inst{23} = addr{12}; // U
1563 let Inst{11-0} = addr{11-0}; // imm12
1566 def i8 : T2Ii8<(outs), (ins t2addrmode_negimm8:$addr), IIC_Preload, opc,
1568 [(ARMPreload t2addrmode_negimm8:$addr, (i32 write), (i32 instr))]>,
1569 Sched<[WritePreLd]> {
1570 let Inst{31-25} = 0b1111100;
1571 let Inst{24} = instr;
1572 let Inst{23} = 0; // U = 0
1574 let Inst{21} = write;
1576 let Inst{15-12} = 0b1111;
1577 let Inst{11-8} = 0b1100;
1580 let Inst{19-16} = addr{12-9}; // Rn
1581 let Inst{7-0} = addr{7-0}; // imm8
1584 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1586 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]>,
1587 Sched<[WritePreLd]> {
1588 let Inst{31-25} = 0b1111100;
1589 let Inst{24} = instr;
1590 let Inst{23} = 0; // add = TRUE for T1
1592 let Inst{21} = write;
1594 let Inst{15-12} = 0b1111;
1595 let Inst{11-6} = 0000000;
1598 let Inst{19-16} = addr{9-6}; // Rn
1599 let Inst{3-0} = addr{5-2}; // Rm
1600 let Inst{5-4} = addr{1-0}; // imm2
1602 let DecoderMethod = "DecodeT2LoadShift";
1604 // FIXME: We should have a separate 'pci' variant here. As-is we represent
1605 // it via the i12 variant, which it's related to, but that means we can
1606 // represent negative immediates, which aren't legal for anything except
1607 // the 'pci' case (Rn == 15).
1610 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1611 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1612 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1614 //===----------------------------------------------------------------------===//
1615 // Load / store multiple Instructions.
1618 multiclass thumb2_ld_mult<string asm, InstrItinClass itin,
1619 InstrItinClass itin_upd, bit L_bit> {
1621 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1622 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1626 let Inst{31-27} = 0b11101;
1627 let Inst{26-25} = 0b00;
1628 let Inst{24-23} = 0b01; // Increment After
1630 let Inst{21} = 0; // No writeback
1631 let Inst{20} = L_bit;
1632 let Inst{19-16} = Rn;
1633 let Inst{15-0} = regs;
1636 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1637 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1641 let Inst{31-27} = 0b11101;
1642 let Inst{26-25} = 0b00;
1643 let Inst{24-23} = 0b01; // Increment After
1645 let Inst{21} = 1; // Writeback
1646 let Inst{20} = L_bit;
1647 let Inst{19-16} = Rn;
1648 let Inst{15-0} = regs;
1651 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1652 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1656 let Inst{31-27} = 0b11101;
1657 let Inst{26-25} = 0b00;
1658 let Inst{24-23} = 0b10; // Decrement Before
1660 let Inst{21} = 0; // No writeback
1661 let Inst{20} = L_bit;
1662 let Inst{19-16} = Rn;
1663 let Inst{15-0} = regs;
1666 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1667 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1671 let Inst{31-27} = 0b11101;
1672 let Inst{26-25} = 0b00;
1673 let Inst{24-23} = 0b10; // Decrement Before
1675 let Inst{21} = 1; // Writeback
1676 let Inst{20} = L_bit;
1677 let Inst{19-16} = Rn;
1678 let Inst{15-0} = regs;
1682 let neverHasSideEffects = 1 in {
1684 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1685 defm t2LDM : thumb2_ld_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1687 multiclass thumb2_st_mult<string asm, InstrItinClass itin,
1688 InstrItinClass itin_upd, bit L_bit> {
1690 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1691 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1695 let Inst{31-27} = 0b11101;
1696 let Inst{26-25} = 0b00;
1697 let Inst{24-23} = 0b01; // Increment After
1699 let Inst{21} = 0; // No writeback
1700 let Inst{20} = L_bit;
1701 let Inst{19-16} = Rn;
1703 let Inst{14} = regs{14};
1705 let Inst{12-0} = regs{12-0};
1708 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1709 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1713 let Inst{31-27} = 0b11101;
1714 let Inst{26-25} = 0b00;
1715 let Inst{24-23} = 0b01; // Increment After
1717 let Inst{21} = 1; // Writeback
1718 let Inst{20} = L_bit;
1719 let Inst{19-16} = Rn;
1721 let Inst{14} = regs{14};
1723 let Inst{12-0} = regs{12-0};
1726 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1727 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1731 let Inst{31-27} = 0b11101;
1732 let Inst{26-25} = 0b00;
1733 let Inst{24-23} = 0b10; // Decrement Before
1735 let Inst{21} = 0; // No writeback
1736 let Inst{20} = L_bit;
1737 let Inst{19-16} = Rn;
1739 let Inst{14} = regs{14};
1741 let Inst{12-0} = regs{12-0};
1744 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1745 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1749 let Inst{31-27} = 0b11101;
1750 let Inst{26-25} = 0b00;
1751 let Inst{24-23} = 0b10; // Decrement Before
1753 let Inst{21} = 1; // Writeback
1754 let Inst{20} = L_bit;
1755 let Inst{19-16} = Rn;
1757 let Inst{14} = regs{14};
1759 let Inst{12-0} = regs{12-0};
1764 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1765 defm t2STM : thumb2_st_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1767 } // neverHasSideEffects
1770 //===----------------------------------------------------------------------===//
1771 // Move Instructions.
1774 let neverHasSideEffects = 1 in
1775 def t2MOVr : T2sTwoReg<(outs GPRnopc:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1776 "mov", ".w\t$Rd, $Rm", []>, Sched<[WriteALU]> {
1777 let Inst{31-27} = 0b11101;
1778 let Inst{26-25} = 0b01;
1779 let Inst{24-21} = 0b0010;
1780 let Inst{19-16} = 0b1111; // Rn
1781 let Inst{14-12} = 0b000;
1782 let Inst{7-4} = 0b0000;
1784 def : t2InstAlias<"mov${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1785 pred:$p, zero_reg)>;
1786 def : t2InstAlias<"movs${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1788 def : t2InstAlias<"movs${p} $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1791 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1792 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1793 AddedComplexity = 1 in
1794 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1795 "mov", ".w\t$Rd, $imm",
1796 [(set rGPR:$Rd, t2_so_imm:$imm)]>, Sched<[WriteALU]> {
1797 let Inst{31-27} = 0b11110;
1799 let Inst{24-21} = 0b0010;
1800 let Inst{19-16} = 0b1111; // Rn
1804 // cc_out is handled as part of the explicit mnemonic in the parser for 'mov'.
1805 // Use aliases to get that to play nice here.
1806 def : t2InstAlias<"movs${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1808 def : t2InstAlias<"movs${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1811 def : t2InstAlias<"mov${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1812 pred:$p, zero_reg)>;
1813 def : t2InstAlias<"mov${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1814 pred:$p, zero_reg)>;
1816 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1817 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
1818 "movw", "\t$Rd, $imm",
1819 [(set rGPR:$Rd, imm0_65535:$imm)]>, Sched<[WriteALU]> {
1820 let Inst{31-27} = 0b11110;
1822 let Inst{24-21} = 0b0010;
1823 let Inst{20} = 0; // The S bit.
1829 let Inst{11-8} = Rd;
1830 let Inst{19-16} = imm{15-12};
1831 let Inst{26} = imm{11};
1832 let Inst{14-12} = imm{10-8};
1833 let Inst{7-0} = imm{7-0};
1834 let DecoderMethod = "DecodeT2MOVTWInstruction";
1837 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1838 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1840 let Constraints = "$src = $Rd" in {
1841 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1842 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
1843 "movt", "\t$Rd, $imm",
1845 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]>,
1847 let Inst{31-27} = 0b11110;
1849 let Inst{24-21} = 0b0110;
1850 let Inst{20} = 0; // The S bit.
1856 let Inst{11-8} = Rd;
1857 let Inst{19-16} = imm{15-12};
1858 let Inst{26} = imm{11};
1859 let Inst{14-12} = imm{10-8};
1860 let Inst{7-0} = imm{7-0};
1861 let DecoderMethod = "DecodeT2MOVTWInstruction";
1864 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1865 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>,
1869 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1871 //===----------------------------------------------------------------------===//
1872 // Extend Instructions.
1877 def t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1878 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1879 def t2SXTH : T2I_ext_rrot<0b000, "sxth",
1880 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1881 def t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1883 def t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1884 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1885 def t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1886 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1887 def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
1891 let AddedComplexity = 16 in {
1892 def t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1893 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1894 def t2UXTH : T2I_ext_rrot<0b001, "uxth",
1895 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1896 def t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1897 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1899 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1900 // The transformation should probably be done as a combiner action
1901 // instead so we can include a check for masking back in the upper
1902 // eight bits of the source into the lower eight bits of the result.
1903 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1904 // (t2UXTB16 rGPR:$Src, 3)>,
1905 // Requires<[HasT2ExtractPack, IsThumb2]>;
1906 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1907 (t2UXTB16 rGPR:$Src, 1)>,
1908 Requires<[HasT2ExtractPack, IsThumb2]>;
1910 def t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1911 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1912 def t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1913 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1914 def t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">;
1917 //===----------------------------------------------------------------------===//
1918 // Arithmetic Instructions.
1921 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1922 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1923 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1924 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1926 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1928 // Currently, t2ADDS/t2SUBS are pseudo opcodes that exist only in the
1929 // selection DAG. They are "lowered" to real t2ADD/t2SUB opcodes by
1930 // AdjustInstrPostInstrSelection where we determine whether or not to
1931 // set the "s" bit based on CPSR liveness.
1933 // FIXME: Eliminate t2ADDS/t2SUBS pseudo opcodes after adding tablegen
1934 // support for an optional CPSR definition that corresponds to the DAG
1935 // node's second value. We can then eliminate the implicit def of CPSR.
1936 defm t2ADDS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1937 BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>;
1938 defm t2SUBS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1939 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1941 let hasPostISelHook = 1 in {
1942 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1943 BinOpWithFlagFrag<(ARMadde node:$LHS, node:$RHS, node:$FLAG)>, 1>;
1944 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1945 BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>>;
1949 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1950 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1952 // FIXME: Eliminate them if we can write def : Pat patterns which defines
1953 // CPSR and the implicit def of CPSR is not needed.
1954 defm t2RSBS : T2I_rbin_s_is <BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1956 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1957 // The assume-no-carry-in form uses the negation of the input since add/sub
1958 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1959 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1961 // The AddedComplexity preferences the first variant over the others since
1962 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1963 let AddedComplexity = 1 in
1964 def : T2Pat<(add GPR:$src, imm1_255_neg:$imm),
1965 (t2SUBri GPR:$src, imm1_255_neg:$imm)>;
1966 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1967 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1968 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1969 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1970 def : T2Pat<(add GPR:$src, imm0_65535_neg:$imm),
1971 (t2SUBrr GPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
1973 let AddedComplexity = 1 in
1974 def : T2Pat<(ARMaddc rGPR:$src, imm1_255_neg:$imm),
1975 (t2SUBSri rGPR:$src, imm1_255_neg:$imm)>;
1976 def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm),
1977 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1978 def : T2Pat<(ARMaddc rGPR:$src, imm0_65535_neg:$imm),
1979 (t2SUBSrr rGPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
1980 // The with-carry-in form matches bitwise not instead of the negation.
1981 // Effectively, the inverse interpretation of the carry flag already accounts
1982 // for part of the negation.
1983 let AddedComplexity = 1 in
1984 def : T2Pat<(ARMadde rGPR:$src, imm0_255_not:$imm, CPSR),
1985 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
1986 def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR),
1987 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
1988 def : T2Pat<(ARMadde rGPR:$src, imm0_65535_neg:$imm, CPSR),
1989 (t2SBCrr rGPR:$src, (t2MOVi16 (imm_not_XFORM imm:$imm)))>;
1991 // Select Bytes -- for disassembly only
1993 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1994 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []>,
1995 Requires<[IsThumb2, HasThumb2DSP]> {
1996 let Inst{31-27} = 0b11111;
1997 let Inst{26-24} = 0b010;
1999 let Inst{22-20} = 0b010;
2000 let Inst{15-12} = 0b1111;
2002 let Inst{6-4} = 0b000;
2005 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
2006 // And Miscellaneous operations -- for disassembly only
2007 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
2008 list<dag> pat = [/* For disassembly only; pattern left blank */],
2009 dag iops = (ins rGPR:$Rn, rGPR:$Rm),
2010 string asm = "\t$Rd, $Rn, $Rm">
2011 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
2012 Requires<[IsThumb2, HasThumb2DSP]> {
2013 let Inst{31-27} = 0b11111;
2014 let Inst{26-23} = 0b0101;
2015 let Inst{22-20} = op22_20;
2016 let Inst{15-12} = 0b1111;
2017 let Inst{7-4} = op7_4;
2023 let Inst{11-8} = Rd;
2024 let Inst{19-16} = Rn;
2028 // Saturating add/subtract -- for disassembly only
2030 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
2031 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))],
2032 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2033 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
2034 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
2035 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
2036 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [],
2037 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2038 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [],
2039 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2040 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
2041 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
2042 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))],
2043 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2044 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
2045 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
2046 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
2047 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
2048 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
2049 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
2050 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
2051 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
2053 // Signed/Unsigned add/subtract -- for disassembly only
2055 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
2056 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
2057 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
2058 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
2059 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
2060 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
2061 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
2062 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
2063 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
2064 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
2065 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
2066 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
2068 // Signed/Unsigned halving add/subtract -- for disassembly only
2070 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
2071 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
2072 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
2073 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
2074 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
2075 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
2076 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
2077 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
2078 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
2079 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
2080 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
2081 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
2083 // Helper class for disassembly only
2084 // A6.3.16 & A6.3.17
2085 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
2086 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2087 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2088 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2089 let Inst{31-27} = 0b11111;
2090 let Inst{26-24} = 0b011;
2091 let Inst{23} = long;
2092 let Inst{22-20} = op22_20;
2093 let Inst{7-4} = op7_4;
2096 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2097 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2098 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
2099 let Inst{31-27} = 0b11111;
2100 let Inst{26-24} = 0b011;
2101 let Inst{23} = long;
2102 let Inst{22-20} = op22_20;
2103 let Inst{7-4} = op7_4;
2106 // Unsigned Sum of Absolute Differences [and Accumulate].
2107 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2108 (ins rGPR:$Rn, rGPR:$Rm),
2109 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>,
2110 Requires<[IsThumb2, HasThumb2DSP]> {
2111 let Inst{15-12} = 0b1111;
2113 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2114 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
2115 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>,
2116 Requires<[IsThumb2, HasThumb2DSP]>;
2118 // Signed/Unsigned saturate.
2119 class T2SatI<dag oops, dag iops, InstrItinClass itin,
2120 string opc, string asm, list<dag> pattern>
2121 : T2I<oops, iops, itin, opc, asm, pattern> {
2127 let Inst{11-8} = Rd;
2128 let Inst{19-16} = Rn;
2129 let Inst{4-0} = sat_imm;
2130 let Inst{21} = sh{5};
2131 let Inst{14-12} = sh{4-2};
2132 let Inst{7-6} = sh{1-0};
2137 (ins imm1_32:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2138 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2139 let Inst{31-27} = 0b11110;
2140 let Inst{25-22} = 0b1100;
2146 def t2SSAT16: T2SatI<
2147 (outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary,
2148 "ssat16", "\t$Rd, $sat_imm, $Rn", []>,
2149 Requires<[IsThumb2, HasThumb2DSP]> {
2150 let Inst{31-27} = 0b11110;
2151 let Inst{25-22} = 0b1100;
2154 let Inst{21} = 1; // sh = '1'
2155 let Inst{14-12} = 0b000; // imm3 = '000'
2156 let Inst{7-6} = 0b00; // imm2 = '00'
2157 let Inst{5-4} = 0b00;
2162 (ins imm0_31:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2163 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2164 let Inst{31-27} = 0b11110;
2165 let Inst{25-22} = 0b1110;
2170 def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins imm0_15:$sat_imm, rGPR:$Rn),
2172 "usat16", "\t$Rd, $sat_imm, $Rn", []>,
2173 Requires<[IsThumb2, HasThumb2DSP]> {
2174 let Inst{31-22} = 0b1111001110;
2177 let Inst{21} = 1; // sh = '1'
2178 let Inst{14-12} = 0b000; // imm3 = '000'
2179 let Inst{7-6} = 0b00; // imm2 = '00'
2180 let Inst{5-4} = 0b00;
2183 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2184 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2186 //===----------------------------------------------------------------------===//
2187 // Shift and rotate Instructions.
2190 defm t2LSL : T2I_sh_ir<0b00, "lsl", imm0_31,
2191 BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2192 defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr,
2193 BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2194 defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr,
2195 BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2196 defm t2ROR : T2I_sh_ir<0b11, "ror", imm0_31,
2197 BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2199 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
2200 def : T2Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
2201 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
2203 let Uses = [CPSR] in {
2204 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2205 "rrx", "\t$Rd, $Rm",
2206 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]>, Sched<[WriteALU]> {
2207 let Inst{31-27} = 0b11101;
2208 let Inst{26-25} = 0b01;
2209 let Inst{24-21} = 0b0010;
2210 let Inst{19-16} = 0b1111; // Rn
2211 let Inst{14-12} = 0b000;
2212 let Inst{7-4} = 0b0011;
2216 let isCodeGenOnly = 1, Defs = [CPSR] in {
2217 def t2MOVsrl_flag : T2TwoRegShiftImm<
2218 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2219 "lsrs", ".w\t$Rd, $Rm, #1",
2220 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]>,
2222 let Inst{31-27} = 0b11101;
2223 let Inst{26-25} = 0b01;
2224 let Inst{24-21} = 0b0010;
2225 let Inst{20} = 1; // The S bit.
2226 let Inst{19-16} = 0b1111; // Rn
2227 let Inst{5-4} = 0b01; // Shift type.
2228 // Shift amount = Inst{14-12:7-6} = 1.
2229 let Inst{14-12} = 0b000;
2230 let Inst{7-6} = 0b01;
2232 def t2MOVsra_flag : T2TwoRegShiftImm<
2233 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2234 "asrs", ".w\t$Rd, $Rm, #1",
2235 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]>,
2237 let Inst{31-27} = 0b11101;
2238 let Inst{26-25} = 0b01;
2239 let Inst{24-21} = 0b0010;
2240 let Inst{20} = 1; // The S bit.
2241 let Inst{19-16} = 0b1111; // Rn
2242 let Inst{5-4} = 0b10; // Shift type.
2243 // Shift amount = Inst{14-12:7-6} = 1.
2244 let Inst{14-12} = 0b000;
2245 let Inst{7-6} = 0b01;
2249 //===----------------------------------------------------------------------===//
2250 // Bitwise Instructions.
2253 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2254 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2255 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2256 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2257 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2258 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2259 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2260 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2261 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2263 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2264 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2265 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2267 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2268 string opc, string asm, list<dag> pattern>
2269 : T2I<oops, iops, itin, opc, asm, pattern> {
2274 let Inst{11-8} = Rd;
2275 let Inst{4-0} = msb{4-0};
2276 let Inst{14-12} = lsb{4-2};
2277 let Inst{7-6} = lsb{1-0};
2280 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2281 string opc, string asm, list<dag> pattern>
2282 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2285 let Inst{19-16} = Rn;
2288 let Constraints = "$src = $Rd" in
2289 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2290 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2291 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2292 let Inst{31-27} = 0b11110;
2293 let Inst{26} = 0; // should be 0.
2295 let Inst{24-20} = 0b10110;
2296 let Inst{19-16} = 0b1111; // Rn
2298 let Inst{5} = 0; // should be 0.
2301 let msb{4-0} = imm{9-5};
2302 let lsb{4-0} = imm{4-0};
2305 def t2SBFX: T2TwoRegBitFI<
2306 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2307 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2308 let Inst{31-27} = 0b11110;
2310 let Inst{24-20} = 0b10100;
2314 def t2UBFX: T2TwoRegBitFI<
2315 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2316 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2317 let Inst{31-27} = 0b11110;
2319 let Inst{24-20} = 0b11100;
2323 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2324 let Constraints = "$src = $Rd" in {
2325 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2326 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2327 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2328 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2329 bf_inv_mask_imm:$imm))]> {
2330 let Inst{31-27} = 0b11110;
2331 let Inst{26} = 0; // should be 0.
2333 let Inst{24-20} = 0b10110;
2335 let Inst{5} = 0; // should be 0.
2338 let msb{4-0} = imm{9-5};
2339 let lsb{4-0} = imm{4-0};
2343 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2344 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2345 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2347 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
2348 /// unary operation that produces a value. These are predicable and can be
2349 /// changed to modify CPSR.
2350 multiclass T2I_un_irs<bits<4> opcod, string opc,
2351 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
2353 bit Cheap = 0, bit ReMat = 0, bit MoveImm = 0> {
2355 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
2357 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]>, Sched<[WriteALU]> {
2358 let isAsCheapAsAMove = Cheap;
2359 let isReMaterializable = ReMat;
2360 let isMoveImm = MoveImm;
2361 let Inst{31-27} = 0b11110;
2363 let Inst{24-21} = opcod;
2364 let Inst{19-16} = 0b1111; // Rn
2368 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
2369 opc, ".w\t$Rd, $Rm",
2370 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>, Sched<[WriteALU]> {
2371 let Inst{31-27} = 0b11101;
2372 let Inst{26-25} = 0b01;
2373 let Inst{24-21} = opcod;
2374 let Inst{19-16} = 0b1111; // Rn
2375 let Inst{14-12} = 0b000; // imm3
2376 let Inst{7-6} = 0b00; // imm2
2377 let Inst{5-4} = 0b00; // type
2380 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
2381 opc, ".w\t$Rd, $ShiftedRm",
2382 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]>,
2384 let Inst{31-27} = 0b11101;
2385 let Inst{26-25} = 0b01;
2386 let Inst{24-21} = opcod;
2387 let Inst{19-16} = 0b1111; // Rn
2391 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2392 let AddedComplexity = 1 in
2393 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2394 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2395 UnOpFrag<(not node:$Src)>, 1, 1, 1>;
2397 let AddedComplexity = 1 in
2398 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2399 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2401 // top16Zero - answer true if the upper 16 bits of $src are 0, false otherwise
2402 def top16Zero: PatLeaf<(i32 rGPR:$src), [{
2403 return CurDAG->MaskedValueIsZero(SDValue(N,0), APInt::getHighBitsSet(32, 16));
2406 // so_imm_notSext is needed instead of so_imm_not, as the value of imm
2407 // will match the extended, not the original bitWidth for $src.
2408 def : T2Pat<(and top16Zero:$src, t2_so_imm_notSext:$imm),
2409 (t2BICri rGPR:$src, t2_so_imm_notSext:$imm)>;
2412 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2413 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2414 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2415 Requires<[IsThumb2]>;
2417 def : T2Pat<(t2_so_imm_not:$src),
2418 (t2MVNi t2_so_imm_not:$src)>;
2420 //===----------------------------------------------------------------------===//
2421 // Multiply Instructions.
2423 let isCommutable = 1 in
2424 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2425 "mul", "\t$Rd, $Rn, $Rm",
2426 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2427 let Inst{31-27} = 0b11111;
2428 let Inst{26-23} = 0b0110;
2429 let Inst{22-20} = 0b000;
2430 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2431 let Inst{7-4} = 0b0000; // Multiply
2434 def t2MLA: T2FourReg<
2435 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2436 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2437 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]>,
2438 Requires<[IsThumb2, UseMulOps]> {
2439 let Inst{31-27} = 0b11111;
2440 let Inst{26-23} = 0b0110;
2441 let Inst{22-20} = 0b000;
2442 let Inst{7-4} = 0b0000; // Multiply
2445 def t2MLS: T2FourReg<
2446 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2447 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2448 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]>,
2449 Requires<[IsThumb2, UseMulOps]> {
2450 let Inst{31-27} = 0b11111;
2451 let Inst{26-23} = 0b0110;
2452 let Inst{22-20} = 0b000;
2453 let Inst{7-4} = 0b0001; // Multiply and Subtract
2456 // Extra precision multiplies with low / high results
2457 let neverHasSideEffects = 1 in {
2458 let isCommutable = 1 in {
2459 def t2SMULL : T2MulLong<0b000, 0b0000,
2460 (outs rGPR:$RdLo, rGPR:$RdHi),
2461 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2462 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2464 def t2UMULL : T2MulLong<0b010, 0b0000,
2465 (outs rGPR:$RdLo, rGPR:$RdHi),
2466 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2467 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2470 // Multiply + accumulate
2471 def t2SMLAL : T2MlaLong<0b100, 0b0000,
2472 (outs rGPR:$RdLo, rGPR:$RdHi),
2473 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi), IIC_iMAC64,
2474 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2475 RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">;
2477 def t2UMLAL : T2MlaLong<0b110, 0b0000,
2478 (outs rGPR:$RdLo, rGPR:$RdHi),
2479 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi), IIC_iMAC64,
2480 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2481 RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">;
2483 def t2UMAAL : T2MulLong<0b110, 0b0110,
2484 (outs rGPR:$RdLo, rGPR:$RdHi),
2485 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2486 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2487 Requires<[IsThumb2, HasThumb2DSP]>;
2488 } // neverHasSideEffects
2490 // Rounding variants of the below included for disassembly only
2492 // Most significant word multiply
2493 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2494 "smmul", "\t$Rd, $Rn, $Rm",
2495 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]>,
2496 Requires<[IsThumb2, HasThumb2DSP]> {
2497 let Inst{31-27} = 0b11111;
2498 let Inst{26-23} = 0b0110;
2499 let Inst{22-20} = 0b101;
2500 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2501 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2504 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2505 "smmulr", "\t$Rd, $Rn, $Rm", []>,
2506 Requires<[IsThumb2, HasThumb2DSP]> {
2507 let Inst{31-27} = 0b11111;
2508 let Inst{26-23} = 0b0110;
2509 let Inst{22-20} = 0b101;
2510 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2511 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2514 def t2SMMLA : T2FourReg<
2515 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2516 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2517 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>,
2518 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2519 let Inst{31-27} = 0b11111;
2520 let Inst{26-23} = 0b0110;
2521 let Inst{22-20} = 0b101;
2522 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2525 def t2SMMLAR: T2FourReg<
2526 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2527 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
2528 Requires<[IsThumb2, HasThumb2DSP]> {
2529 let Inst{31-27} = 0b11111;
2530 let Inst{26-23} = 0b0110;
2531 let Inst{22-20} = 0b101;
2532 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2535 def t2SMMLS: T2FourReg<
2536 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2537 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2538 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>,
2539 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2540 let Inst{31-27} = 0b11111;
2541 let Inst{26-23} = 0b0110;
2542 let Inst{22-20} = 0b110;
2543 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2546 def t2SMMLSR:T2FourReg<
2547 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2548 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
2549 Requires<[IsThumb2, HasThumb2DSP]> {
2550 let Inst{31-27} = 0b11111;
2551 let Inst{26-23} = 0b0110;
2552 let Inst{22-20} = 0b110;
2553 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2556 multiclass T2I_smul<string opc, PatFrag opnode> {
2557 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2558 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2559 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2560 (sext_inreg rGPR:$Rm, i16)))]>,
2561 Requires<[IsThumb2, HasThumb2DSP]> {
2562 let Inst{31-27} = 0b11111;
2563 let Inst{26-23} = 0b0110;
2564 let Inst{22-20} = 0b001;
2565 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2566 let Inst{7-6} = 0b00;
2567 let Inst{5-4} = 0b00;
2570 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2571 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2572 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2573 (sra rGPR:$Rm, (i32 16))))]>,
2574 Requires<[IsThumb2, HasThumb2DSP]> {
2575 let Inst{31-27} = 0b11111;
2576 let Inst{26-23} = 0b0110;
2577 let Inst{22-20} = 0b001;
2578 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2579 let Inst{7-6} = 0b00;
2580 let Inst{5-4} = 0b01;
2583 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2584 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2585 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2586 (sext_inreg rGPR:$Rm, i16)))]>,
2587 Requires<[IsThumb2, HasThumb2DSP]> {
2588 let Inst{31-27} = 0b11111;
2589 let Inst{26-23} = 0b0110;
2590 let Inst{22-20} = 0b001;
2591 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2592 let Inst{7-6} = 0b00;
2593 let Inst{5-4} = 0b10;
2596 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2597 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2598 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2599 (sra rGPR:$Rm, (i32 16))))]>,
2600 Requires<[IsThumb2, HasThumb2DSP]> {
2601 let Inst{31-27} = 0b11111;
2602 let Inst{26-23} = 0b0110;
2603 let Inst{22-20} = 0b001;
2604 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2605 let Inst{7-6} = 0b00;
2606 let Inst{5-4} = 0b11;
2609 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2610 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2611 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2612 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]>,
2613 Requires<[IsThumb2, HasThumb2DSP]> {
2614 let Inst{31-27} = 0b11111;
2615 let Inst{26-23} = 0b0110;
2616 let Inst{22-20} = 0b011;
2617 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2618 let Inst{7-6} = 0b00;
2619 let Inst{5-4} = 0b00;
2622 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2623 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2624 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2625 (sra rGPR:$Rm, (i32 16))), (i32 16)))]>,
2626 Requires<[IsThumb2, HasThumb2DSP]> {
2627 let Inst{31-27} = 0b11111;
2628 let Inst{26-23} = 0b0110;
2629 let Inst{22-20} = 0b011;
2630 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2631 let Inst{7-6} = 0b00;
2632 let Inst{5-4} = 0b01;
2637 multiclass T2I_smla<string opc, PatFrag opnode> {
2639 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2640 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2641 [(set rGPR:$Rd, (add rGPR:$Ra,
2642 (opnode (sext_inreg rGPR:$Rn, i16),
2643 (sext_inreg rGPR:$Rm, i16))))]>,
2644 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2645 let Inst{31-27} = 0b11111;
2646 let Inst{26-23} = 0b0110;
2647 let Inst{22-20} = 0b001;
2648 let Inst{7-6} = 0b00;
2649 let Inst{5-4} = 0b00;
2653 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2654 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2655 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2656 (sra rGPR:$Rm, (i32 16)))))]>,
2657 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2658 let Inst{31-27} = 0b11111;
2659 let Inst{26-23} = 0b0110;
2660 let Inst{22-20} = 0b001;
2661 let Inst{7-6} = 0b00;
2662 let Inst{5-4} = 0b01;
2666 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2667 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2668 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2669 (sext_inreg rGPR:$Rm, i16))))]>,
2670 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2671 let Inst{31-27} = 0b11111;
2672 let Inst{26-23} = 0b0110;
2673 let Inst{22-20} = 0b001;
2674 let Inst{7-6} = 0b00;
2675 let Inst{5-4} = 0b10;
2679 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2680 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2681 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2682 (sra rGPR:$Rm, (i32 16)))))]>,
2683 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2684 let Inst{31-27} = 0b11111;
2685 let Inst{26-23} = 0b0110;
2686 let Inst{22-20} = 0b001;
2687 let Inst{7-6} = 0b00;
2688 let Inst{5-4} = 0b11;
2692 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2693 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2694 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2695 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]>,
2696 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2697 let Inst{31-27} = 0b11111;
2698 let Inst{26-23} = 0b0110;
2699 let Inst{22-20} = 0b011;
2700 let Inst{7-6} = 0b00;
2701 let Inst{5-4} = 0b00;
2705 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2706 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2707 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2708 (sra rGPR:$Rm, (i32 16))), (i32 16))))]>,
2709 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2710 let Inst{31-27} = 0b11111;
2711 let Inst{26-23} = 0b0110;
2712 let Inst{22-20} = 0b011;
2713 let Inst{7-6} = 0b00;
2714 let Inst{5-4} = 0b01;
2718 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2719 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2721 // Halfword multiple accumulate long: SMLAL<x><y>
2722 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2723 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2724 [/* For disassembly only; pattern left blank */]>,
2725 Requires<[IsThumb2, HasThumb2DSP]>;
2726 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2727 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2728 [/* For disassembly only; pattern left blank */]>,
2729 Requires<[IsThumb2, HasThumb2DSP]>;
2730 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2731 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2732 [/* For disassembly only; pattern left blank */]>,
2733 Requires<[IsThumb2, HasThumb2DSP]>;
2734 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2735 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2736 [/* For disassembly only; pattern left blank */]>,
2737 Requires<[IsThumb2, HasThumb2DSP]>;
2739 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2740 def t2SMUAD: T2ThreeReg_mac<
2741 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2742 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>,
2743 Requires<[IsThumb2, HasThumb2DSP]> {
2744 let Inst{15-12} = 0b1111;
2746 def t2SMUADX:T2ThreeReg_mac<
2747 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2748 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []>,
2749 Requires<[IsThumb2, HasThumb2DSP]> {
2750 let Inst{15-12} = 0b1111;
2752 def t2SMUSD: T2ThreeReg_mac<
2753 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2754 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []>,
2755 Requires<[IsThumb2, HasThumb2DSP]> {
2756 let Inst{15-12} = 0b1111;
2758 def t2SMUSDX:T2ThreeReg_mac<
2759 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2760 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []>,
2761 Requires<[IsThumb2, HasThumb2DSP]> {
2762 let Inst{15-12} = 0b1111;
2764 def t2SMLAD : T2FourReg_mac<
2765 0, 0b010, 0b0000, (outs rGPR:$Rd),
2766 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2767 "\t$Rd, $Rn, $Rm, $Ra", []>,
2768 Requires<[IsThumb2, HasThumb2DSP]>;
2769 def t2SMLADX : T2FourReg_mac<
2770 0, 0b010, 0b0001, (outs rGPR:$Rd),
2771 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2772 "\t$Rd, $Rn, $Rm, $Ra", []>,
2773 Requires<[IsThumb2, HasThumb2DSP]>;
2774 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2775 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2776 "\t$Rd, $Rn, $Rm, $Ra", []>,
2777 Requires<[IsThumb2, HasThumb2DSP]>;
2778 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2779 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2780 "\t$Rd, $Rn, $Rm, $Ra", []>,
2781 Requires<[IsThumb2, HasThumb2DSP]>;
2782 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2783 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64, "smlald",
2784 "\t$Ra, $Rd, $Rn, $Rm", []>,
2785 Requires<[IsThumb2, HasThumb2DSP]>;
2786 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2787 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaldx",
2788 "\t$Ra, $Rd, $Rn, $Rm", []>,
2789 Requires<[IsThumb2, HasThumb2DSP]>;
2790 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2791 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlsld",
2792 "\t$Ra, $Rd, $Rn, $Rm", []>,
2793 Requires<[IsThumb2, HasThumb2DSP]>;
2794 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2795 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2796 "\t$Ra, $Rd, $Rn, $Rm", []>,
2797 Requires<[IsThumb2, HasThumb2DSP]>;
2799 //===----------------------------------------------------------------------===//
2800 // Division Instructions.
2801 // Signed and unsigned division on v7-M
2803 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV,
2804 "sdiv", "\t$Rd, $Rn, $Rm",
2805 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
2806 Requires<[HasDivide, IsThumb2]> {
2807 let Inst{31-27} = 0b11111;
2808 let Inst{26-21} = 0b011100;
2810 let Inst{15-12} = 0b1111;
2811 let Inst{7-4} = 0b1111;
2814 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV,
2815 "udiv", "\t$Rd, $Rn, $Rm",
2816 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
2817 Requires<[HasDivide, IsThumb2]> {
2818 let Inst{31-27} = 0b11111;
2819 let Inst{26-21} = 0b011101;
2821 let Inst{15-12} = 0b1111;
2822 let Inst{7-4} = 0b1111;
2825 //===----------------------------------------------------------------------===//
2826 // Misc. Arithmetic Instructions.
2829 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2830 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2831 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2832 let Inst{31-27} = 0b11111;
2833 let Inst{26-22} = 0b01010;
2834 let Inst{21-20} = op1;
2835 let Inst{15-12} = 0b1111;
2836 let Inst{7-6} = 0b10;
2837 let Inst{5-4} = op2;
2841 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2842 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>,
2845 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2846 "rbit", "\t$Rd, $Rm",
2847 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>,
2850 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2851 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>,
2854 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2855 "rev16", ".w\t$Rd, $Rm",
2856 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>,
2859 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2860 "revsh", ".w\t$Rd, $Rm",
2861 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>,
2864 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
2865 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
2866 (t2REVSH rGPR:$Rm)>;
2868 def t2PKHBT : T2ThreeReg<
2869 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_lsl_amt:$sh),
2870 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2871 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2872 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
2874 Requires<[HasT2ExtractPack, IsThumb2]>,
2875 Sched<[WriteALUsi, ReadALU]> {
2876 let Inst{31-27} = 0b11101;
2877 let Inst{26-25} = 0b01;
2878 let Inst{24-20} = 0b01100;
2879 let Inst{5} = 0; // BT form
2883 let Inst{14-12} = sh{4-2};
2884 let Inst{7-6} = sh{1-0};
2887 // Alternate cases for PKHBT where identities eliminate some nodes.
2888 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2889 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2890 Requires<[HasT2ExtractPack, IsThumb2]>;
2891 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2892 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2893 Requires<[HasT2ExtractPack, IsThumb2]>;
2895 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2896 // will match the pattern below.
2897 def t2PKHTB : T2ThreeReg<
2898 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_asr_amt:$sh),
2899 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2900 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2901 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
2903 Requires<[HasT2ExtractPack, IsThumb2]>,
2904 Sched<[WriteALUsi, ReadALU]> {
2905 let Inst{31-27} = 0b11101;
2906 let Inst{26-25} = 0b01;
2907 let Inst{24-20} = 0b01100;
2908 let Inst{5} = 1; // TB form
2912 let Inst{14-12} = sh{4-2};
2913 let Inst{7-6} = sh{1-0};
2916 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2917 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2918 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2919 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2920 Requires<[HasT2ExtractPack, IsThumb2]>;
2921 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2922 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2923 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
2924 Requires<[HasT2ExtractPack, IsThumb2]>;
2926 //===----------------------------------------------------------------------===//
2927 // Comparison Instructions...
2929 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2930 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2931 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2933 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm),
2934 (t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>;
2935 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, rGPR:$rhs),
2936 (t2CMPrr GPRnopc:$lhs, rGPR:$rhs)>;
2937 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg:$rhs),
2938 (t2CMPrs GPRnopc:$lhs, t2_so_reg:$rhs)>;
2940 let isCompare = 1, Defs = [CPSR] in {
2942 def t2CMNri : T2OneRegCmpImm<
2943 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iCMPi,
2944 "cmn", ".w\t$Rn, $imm",
2945 [(ARMcmn GPRnopc:$Rn, (ineg t2_so_imm:$imm))]>,
2946 Sched<[WriteCMP, ReadALU]> {
2947 let Inst{31-27} = 0b11110;
2949 let Inst{24-21} = 0b1000;
2950 let Inst{20} = 1; // The S bit.
2952 let Inst{11-8} = 0b1111; // Rd
2955 def t2CMNzrr : T2TwoRegCmp<
2956 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iCMPr,
2957 "cmn", ".w\t$Rn, $Rm",
2958 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
2959 GPRnopc:$Rn, rGPR:$Rm)]>, Sched<[WriteCMP, ReadALU, ReadALU]> {
2960 let Inst{31-27} = 0b11101;
2961 let Inst{26-25} = 0b01;
2962 let Inst{24-21} = 0b1000;
2963 let Inst{20} = 1; // The S bit.
2964 let Inst{14-12} = 0b000; // imm3
2965 let Inst{11-8} = 0b1111; // Rd
2966 let Inst{7-6} = 0b00; // imm2
2967 let Inst{5-4} = 0b00; // type
2970 def t2CMNzrs : T2OneRegCmpShiftedReg<
2971 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), IIC_iCMPsi,
2972 "cmn", ".w\t$Rn, $ShiftedRm",
2973 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
2974 GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]>,
2975 Sched<[WriteCMPsi, ReadALU, ReadALU]> {
2976 let Inst{31-27} = 0b11101;
2977 let Inst{26-25} = 0b01;
2978 let Inst{24-21} = 0b1000;
2979 let Inst{20} = 1; // The S bit.
2980 let Inst{11-8} = 0b1111; // Rd
2984 // Assembler aliases w/o the ".w" suffix.
2985 // No alias here for 'rr' version as not all instantiations of this multiclass
2986 // want one (CMP in particular, does not).
2987 def : t2InstAlias<"cmn${p} $Rn, $imm",
2988 (t2CMNri GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>;
2989 def : t2InstAlias<"cmn${p} $Rn, $shift",
2990 (t2CMNzrs GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>;
2992 def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2993 (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2995 def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
2996 (t2CMNri GPRnopc:$src, t2_so_imm_neg:$imm)>;
2998 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2999 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
3000 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
3001 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
3002 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
3003 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
3005 // Conditional moves
3006 // FIXME: should be able to write a pattern for ARMcmov, but can't use
3007 // a two-value operand where a dag node expects two operands. :(
3008 let neverHasSideEffects = 1 in {
3010 let isCommutable = 1, isSelect = 1 in
3011 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
3012 (ins rGPR:$false, rGPR:$Rm, pred:$p),
3014 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
3015 RegConstraint<"$false = $Rd">,
3018 let isMoveImm = 1 in
3019 def t2MOVCCi : t2PseudoInst<(outs rGPR:$Rd),
3020 (ins rGPR:$false, t2_so_imm:$imm, pred:$p),
3022 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
3023 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
3025 // FIXME: Pseudo-ize these. For now, just mark codegen only.
3026 let isCodeGenOnly = 1 in {
3027 let isMoveImm = 1 in
3028 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, imm0_65535_expr:$imm),
3030 "movw", "\t$Rd, $imm", []>,
3031 RegConstraint<"$false = $Rd">, Sched<[WriteALU]> {
3032 let Inst{31-27} = 0b11110;
3034 let Inst{24-21} = 0b0010;
3035 let Inst{20} = 0; // The S bit.
3041 let Inst{11-8} = Rd;
3042 let Inst{19-16} = imm{15-12};
3043 let Inst{26} = imm{11};
3044 let Inst{14-12} = imm{10-8};
3045 let Inst{7-0} = imm{7-0};
3048 let isMoveImm = 1 in
3049 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
3050 (ins rGPR:$false, i32imm:$src, pred:$p),
3051 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
3053 let isMoveImm = 1 in
3054 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
3055 IIC_iCMOVi, "mvn", "\t$Rd, $imm",
3056 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
3057 imm:$cc, CCR:$ccr))*/]>,
3058 RegConstraint<"$false = $Rd">, Sched<[WriteALU]> {
3059 let Inst{31-27} = 0b11110;
3061 let Inst{24-21} = 0b0011;
3062 let Inst{20} = 0; // The S bit.
3063 let Inst{19-16} = 0b1111; // Rn
3067 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
3068 string opc, string asm, list<dag> pattern>
3069 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern>, Sched<[WriteALU]> {
3070 let Inst{31-27} = 0b11101;
3071 let Inst{26-25} = 0b01;
3072 let Inst{24-21} = 0b0010;
3073 let Inst{20} = 0; // The S bit.
3074 let Inst{19-16} = 0b1111; // Rn
3075 let Inst{5-4} = opcod; // Shift type.
3077 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
3078 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3079 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
3080 RegConstraint<"$false = $Rd">;
3081 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
3082 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3083 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
3084 RegConstraint<"$false = $Rd">;
3085 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
3086 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3087 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
3088 RegConstraint<"$false = $Rd">;
3089 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
3090 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3091 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
3092 RegConstraint<"$false = $Rd">;
3093 } // isCodeGenOnly = 1
3095 } // neverHasSideEffects
3097 //===----------------------------------------------------------------------===//
3098 // Atomic operations intrinsics
3101 // memory barriers protect the atomic sequences
3102 let hasSideEffects = 1 in {
3103 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
3104 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
3105 Requires<[IsThumb, HasDB]> {
3107 let Inst{31-4} = 0xf3bf8f5;
3108 let Inst{3-0} = opt;
3112 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
3113 "dsb", "\t$opt", []>,
3114 Requires<[IsThumb, HasDB]> {
3116 let Inst{31-4} = 0xf3bf8f4;
3117 let Inst{3-0} = opt;
3120 def t2ISB : AInoP<(outs), (ins instsyncb_opt:$opt), ThumbFrm, NoItinerary,
3122 []>, Requires<[IsThumb, HasDB]> {
3124 let Inst{31-4} = 0xf3bf8f6;
3125 let Inst{3-0} = opt;
3128 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
3129 InstrItinClass itin, string opc, string asm, string cstr,
3130 list<dag> pattern, bits<4> rt2 = 0b1111>
3131 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3132 let Inst{31-27} = 0b11101;
3133 let Inst{26-20} = 0b0001101;
3134 let Inst{11-8} = rt2;
3135 let Inst{7-6} = 0b01;
3136 let Inst{5-4} = opcod;
3137 let Inst{3-0} = 0b1111;
3141 let Inst{19-16} = addr;
3142 let Inst{15-12} = Rt;
3144 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
3145 InstrItinClass itin, string opc, string asm, string cstr,
3146 list<dag> pattern, bits<4> rt2 = 0b1111>
3147 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3148 let Inst{31-27} = 0b11101;
3149 let Inst{26-20} = 0b0001100;
3150 let Inst{11-8} = rt2;
3151 let Inst{7-6} = 0b01;
3152 let Inst{5-4} = opcod;
3158 let Inst{19-16} = addr;
3159 let Inst{15-12} = Rt;
3162 let mayLoad = 1 in {
3163 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3164 AddrModeNone, 4, NoItinerary,
3165 "ldrexb", "\t$Rt, $addr", "", []>;
3166 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3167 AddrModeNone, 4, NoItinerary,
3168 "ldrexh", "\t$Rt, $addr", "", []>;
3169 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_imm0_1020s4:$addr),
3170 AddrModeNone, 4, NoItinerary,
3171 "ldrex", "\t$Rt, $addr", "", []> {
3174 let Inst{31-27} = 0b11101;
3175 let Inst{26-20} = 0b0000101;
3176 let Inst{19-16} = addr{11-8};
3177 let Inst{15-12} = Rt;
3178 let Inst{11-8} = 0b1111;
3179 let Inst{7-0} = addr{7-0};
3181 let hasExtraDefRegAllocReq = 1 in
3182 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
3183 (ins addr_offset_none:$addr),
3184 AddrModeNone, 4, NoItinerary,
3185 "ldrexd", "\t$Rt, $Rt2, $addr", "",
3188 let Inst{11-8} = Rt2;
3192 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
3193 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
3194 (ins rGPR:$Rt, addr_offset_none:$addr),
3195 AddrModeNone, 4, NoItinerary,
3196 "strexb", "\t$Rd, $Rt, $addr", "", []>;
3197 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
3198 (ins rGPR:$Rt, addr_offset_none:$addr),
3199 AddrModeNone, 4, NoItinerary,
3200 "strexh", "\t$Rd, $Rt, $addr", "", []>;
3201 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt,
3202 t2addrmode_imm0_1020s4:$addr),
3203 AddrModeNone, 4, NoItinerary,
3204 "strex", "\t$Rd, $Rt, $addr", "",
3209 let Inst{31-27} = 0b11101;
3210 let Inst{26-20} = 0b0000100;
3211 let Inst{19-16} = addr{11-8};
3212 let Inst{15-12} = Rt;
3213 let Inst{11-8} = Rd;
3214 let Inst{7-0} = addr{7-0};
3216 let hasExtraSrcRegAllocReq = 1 in
3217 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
3218 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr),
3219 AddrModeNone, 4, NoItinerary,
3220 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
3223 let Inst{11-8} = Rt2;
3227 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", []>,
3228 Requires<[IsThumb2, HasV7]> {
3229 let Inst{31-16} = 0xf3bf;
3230 let Inst{15-14} = 0b10;
3233 let Inst{11-8} = 0b1111;
3234 let Inst{7-4} = 0b0010;
3235 let Inst{3-0} = 0b1111;
3238 //===----------------------------------------------------------------------===//
3239 // SJLJ Exception handling intrinsics
3240 // eh_sjlj_setjmp() is an instruction sequence to store the return
3241 // address and save #0 in R0 for the non-longjmp case.
3242 // Since by its nature we may be coming from some other function to get
3243 // here, and we're using the stack frame for the containing function to
3244 // save/restore registers, we can't keep anything live in regs across
3245 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
3246 // when we get here from a longjmp(). We force everything out of registers
3247 // except for our own input by listing the relevant registers in Defs. By
3248 // doing so, we also cause the prologue/epilogue code to actively preserve
3249 // all of the callee-saved resgisters, which is exactly what we want.
3250 // $val is a scratch register for our use.
3252 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
3253 Q0, Q1, Q2, Q3, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15],
3254 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3255 usesCustomInserter = 1 in {
3256 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3257 AddrModeNone, 0, NoItinerary, "", "",
3258 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3259 Requires<[IsThumb2, HasVFP2]>;
3263 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
3264 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3265 usesCustomInserter = 1 in {
3266 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3267 AddrModeNone, 0, NoItinerary, "", "",
3268 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3269 Requires<[IsThumb2, NoVFP]>;
3273 //===----------------------------------------------------------------------===//
3274 // Control-Flow Instructions
3277 // FIXME: remove when we have a way to marking a MI with these properties.
3278 // FIXME: Should pc be an implicit operand like PICADD, etc?
3279 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
3280 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
3281 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
3282 reglist:$regs, variable_ops),
3283 4, IIC_iLoad_mBr, [],
3284 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
3285 RegConstraint<"$Rn = $wb">;
3287 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
3288 let isPredicable = 1 in
3289 def t2B : T2I<(outs), (ins uncondbrtarget:$target), IIC_Br,
3291 [(br bb:$target)]>, Sched<[WriteBr]> {
3292 let Inst{31-27} = 0b11110;
3293 let Inst{15-14} = 0b10;
3297 let Inst{26} = target{19};
3298 let Inst{11} = target{18};
3299 let Inst{13} = target{17};
3300 let Inst{25-16} = target{20-11};
3301 let Inst{10-0} = target{10-0};
3302 let DecoderMethod = "DecodeT2BInstruction";
3305 let isNotDuplicable = 1, isIndirectBranch = 1 in {
3306 def t2BR_JT : t2PseudoInst<(outs),
3307 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3309 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>,
3312 // FIXME: Add a non-pc based case that can be predicated.
3313 def t2TBB_JT : t2PseudoInst<(outs),
3314 (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>,
3317 def t2TBH_JT : t2PseudoInst<(outs),
3318 (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>,
3321 def t2TBB : T2I<(outs), (ins addrmode_tbb:$addr), IIC_Br,
3322 "tbb", "\t$addr", []>, Sched<[WriteBrTbl]> {
3325 let Inst{31-20} = 0b111010001101;
3326 let Inst{19-16} = Rn;
3327 let Inst{15-5} = 0b11110000000;
3328 let Inst{4} = 0; // B form
3331 let DecoderMethod = "DecodeThumbTableBranch";
3334 def t2TBH : T2I<(outs), (ins addrmode_tbh:$addr), IIC_Br,
3335 "tbh", "\t$addr", []>, Sched<[WriteBrTbl]> {
3338 let Inst{31-20} = 0b111010001101;
3339 let Inst{19-16} = Rn;
3340 let Inst{15-5} = 0b11110000000;
3341 let Inst{4} = 1; // H form
3344 let DecoderMethod = "DecodeThumbTableBranch";
3346 } // isNotDuplicable, isIndirectBranch
3348 } // isBranch, isTerminator, isBarrier
3350 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3351 // a two-value operand where a dag node expects ", "two operands. :(
3352 let isBranch = 1, isTerminator = 1 in
3353 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3355 [/*(ARMbrcond bb:$target, imm:$cc)*/]>, Sched<[WriteBr]> {
3356 let Inst{31-27} = 0b11110;
3357 let Inst{15-14} = 0b10;
3361 let Inst{25-22} = p;
3364 let Inst{26} = target{20};
3365 let Inst{11} = target{19};
3366 let Inst{13} = target{18};
3367 let Inst{21-16} = target{17-12};
3368 let Inst{10-0} = target{11-1};
3370 let DecoderMethod = "DecodeThumb2BCCInstruction";
3373 // Tail calls. The IOS version of thumb tail calls uses a t2 branch, so
3375 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3378 def tTAILJMPd: tPseudoExpand<(outs),
3379 (ins uncondbrtarget:$dst, pred:$p),
3381 (t2B uncondbrtarget:$dst, pred:$p)>,
3382 Requires<[IsThumb2, IsIOS]>, Sched<[WriteBr]>;
3386 let Defs = [ITSTATE] in
3387 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3388 AddrModeNone, 2, IIC_iALUx,
3389 "it$mask\t$cc", "", []> {
3390 // 16-bit instruction.
3391 let Inst{31-16} = 0x0000;
3392 let Inst{15-8} = 0b10111111;
3397 let Inst{3-0} = mask;
3399 let DecoderMethod = "DecodeIT";
3402 // Branch and Exchange Jazelle -- for disassembly only
3404 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func", []>,
3407 let Inst{31-27} = 0b11110;
3409 let Inst{25-20} = 0b111100;
3410 let Inst{19-16} = func;
3411 let Inst{15-0} = 0b1000111100000000;
3414 // Compare and branch on zero / non-zero
3415 let isBranch = 1, isTerminator = 1 in {
3416 def tCBZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3417 "cbz\t$Rn, $target", []>,
3418 T1Misc<{0,0,?,1,?,?,?}>,
3419 Requires<[IsThumb2]>, Sched<[WriteBr]> {
3423 let Inst{9} = target{5};
3424 let Inst{7-3} = target{4-0};
3428 def tCBNZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3429 "cbnz\t$Rn, $target", []>,
3430 T1Misc<{1,0,?,1,?,?,?}>,
3431 Requires<[IsThumb2]>, Sched<[WriteBr]> {
3435 let Inst{9} = target{5};
3436 let Inst{7-3} = target{4-0};
3442 // Change Processor State is a system instruction.
3443 // FIXME: Since the asm parser has currently no clean way to handle optional
3444 // operands, create 3 versions of the same instruction. Once there's a clean
3445 // framework to represent optional operands, change this behavior.
3446 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3447 !strconcat("cps", asm_op), []> {
3453 let Inst{31-11} = 0b111100111010111110000;
3454 let Inst{10-9} = imod;
3456 let Inst{7-5} = iflags;
3457 let Inst{4-0} = mode;
3458 let DecoderMethod = "DecodeT2CPSInstruction";
3462 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3463 "$imod.w\t$iflags, $mode">;
3464 let mode = 0, M = 0 in
3465 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3466 "$imod.w\t$iflags">;
3467 let imod = 0, iflags = 0, M = 1 in
3468 def t2CPS1p : t2CPS<(ins imm0_31:$mode), "\t$mode">;
3470 // A6.3.4 Branches and miscellaneous control
3471 // Table A6-14 Change Processor State, and hint instructions
3472 def t2HINT : T2I<(outs), (ins imm0_4:$imm), NoItinerary, "hint", "\t$imm",[]> {
3474 let Inst{31-3} = 0b11110011101011111000000000000;
3475 let Inst{2-0} = imm;
3478 def : t2InstAlias<"hint$p.w $imm", (t2HINT imm0_4:$imm, pred:$p)>;
3479 def : t2InstAlias<"nop$p.w", (t2HINT 0, pred:$p)>;
3480 def : t2InstAlias<"yield$p.w", (t2HINT 1, pred:$p)>;
3481 def : t2InstAlias<"wfe$p.w", (t2HINT 2, pred:$p)>;
3482 def : t2InstAlias<"wfi$p.w", (t2HINT 3, pred:$p)>;
3483 def : t2InstAlias<"sev$p.w", (t2HINT 4, pred:$p)>;
3485 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
3487 let Inst{31-20} = 0b111100111010;
3488 let Inst{19-16} = 0b1111;
3489 let Inst{15-8} = 0b10000000;
3490 let Inst{7-4} = 0b1111;
3491 let Inst{3-0} = opt;
3494 // Secure Monitor Call is a system instruction.
3495 // Option = Inst{19-16}
3496 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
3497 []>, Requires<[IsThumb2, HasTrustZone]> {
3498 let Inst{31-27} = 0b11110;
3499 let Inst{26-20} = 0b1111111;
3500 let Inst{15-12} = 0b1000;
3503 let Inst{19-16} = opt;
3506 class T2SRS<bits<2> Op, bit W, dag oops, dag iops, InstrItinClass itin,
3507 string opc, string asm, list<dag> pattern>
3508 : T2I<oops, iops, itin, opc, asm, pattern> {
3510 let Inst{31-25} = 0b1110100;
3511 let Inst{24-23} = Op;
3514 let Inst{20-16} = 0b01101;
3515 let Inst{15-5} = 0b11000000000;
3516 let Inst{4-0} = mode{4-0};
3519 // Store Return State is a system instruction.
3520 def t2SRSDB_UPD : T2SRS<0b00, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3521 "srsdb", "\tsp!, $mode", []>;
3522 def t2SRSDB : T2SRS<0b00, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3523 "srsdb","\tsp, $mode", []>;
3524 def t2SRSIA_UPD : T2SRS<0b11, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3525 "srsia","\tsp!, $mode", []>;
3526 def t2SRSIA : T2SRS<0b11, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3527 "srsia","\tsp, $mode", []>;
3530 def : t2InstAlias<"srsdb${p} $mode", (t2SRSDB imm0_31:$mode, pred:$p)>;
3531 def : t2InstAlias<"srsdb${p} $mode!", (t2SRSDB_UPD imm0_31:$mode, pred:$p)>;
3533 def : t2InstAlias<"srsia${p} $mode", (t2SRSIA imm0_31:$mode, pred:$p)>;
3534 def : t2InstAlias<"srsia${p} $mode!", (t2SRSIA_UPD imm0_31:$mode, pred:$p)>;
3536 // Return From Exception is a system instruction.
3537 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3538 string opc, string asm, list<dag> pattern>
3539 : T2I<oops, iops, itin, opc, asm, pattern> {
3540 let Inst{31-20} = op31_20{11-0};
3543 let Inst{19-16} = Rn;
3544 let Inst{15-0} = 0xc000;
3547 def t2RFEDBW : T2RFE<0b111010000011,
3548 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3549 [/* For disassembly only; pattern left blank */]>;
3550 def t2RFEDB : T2RFE<0b111010000001,
3551 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3552 [/* For disassembly only; pattern left blank */]>;
3553 def t2RFEIAW : T2RFE<0b111010011011,
3554 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3555 [/* For disassembly only; pattern left blank */]>;
3556 def t2RFEIA : T2RFE<0b111010011001,
3557 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3558 [/* For disassembly only; pattern left blank */]>;
3560 //===----------------------------------------------------------------------===//
3561 // Non-Instruction Patterns
3564 // 32-bit immediate using movw + movt.
3565 // This is a single pseudo instruction to make it re-materializable.
3566 // FIXME: Remove this when we can do generalized remat.
3567 let isReMaterializable = 1, isMoveImm = 1 in
3568 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3569 [(set rGPR:$dst, (i32 imm:$src))]>,
3570 Requires<[IsThumb, HasV6T2]>;
3572 // Pseudo instruction that combines movw + movt + add pc (if pic).
3573 // It also makes it possible to rematerialize the instructions.
3574 // FIXME: Remove this when we can do generalized remat and when machine licm
3575 // can properly the instructions.
3576 let isReMaterializable = 1 in {
3577 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3579 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3580 Requires<[IsThumb2, UseMovt]>;
3582 def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3584 [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3585 Requires<[IsThumb2, UseMovt]>;
3588 // ConstantPool, GlobalAddress, and JumpTable
3589 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3590 Requires<[IsThumb2, DontUseMovt]>;
3591 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3592 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3593 Requires<[IsThumb2, UseMovt]>;
3595 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3596 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3598 // Pseudo instruction that combines ldr from constpool and add pc. This should
3599 // be expanded into two instructions late to allow if-conversion and
3601 let canFoldAsLoad = 1, isReMaterializable = 1 in
3602 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3604 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3606 Requires<[IsThumb2]>;
3608 // Pseudo isntruction that combines movs + predicated rsbmi
3609 // to implement integer ABS
3610 let usesCustomInserter = 1, Defs = [CPSR] in {
3611 def t2ABS : PseudoInst<(outs rGPR:$dst), (ins rGPR:$src),
3612 NoItinerary, []>, Requires<[IsThumb2]>;
3615 //===----------------------------------------------------------------------===//
3616 // Coprocessor load/store -- for disassembly only
3618 class T2CI<bits<4> op31_28, dag oops, dag iops, string opc, string asm>
3619 : T2I<oops, iops, NoItinerary, opc, asm, []> {
3620 let Inst{31-28} = op31_28;
3621 let Inst{27-25} = 0b110;
3624 multiclass t2LdStCop<bits<4> op31_28, bit load, bit Dbit, string asm> {
3625 def _OFFSET : T2CI<op31_28,
3626 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
3627 asm, "\t$cop, $CRd, $addr"> {
3631 let Inst{24} = 1; // P = 1
3632 let Inst{23} = addr{8};
3633 let Inst{22} = Dbit;
3634 let Inst{21} = 0; // W = 0
3635 let Inst{20} = load;
3636 let Inst{19-16} = addr{12-9};
3637 let Inst{15-12} = CRd;
3638 let Inst{11-8} = cop;
3639 let Inst{7-0} = addr{7-0};
3640 let DecoderMethod = "DecodeCopMemInstruction";
3642 def _PRE : T2CI<op31_28,
3643 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5_pre:$addr),
3644 asm, "\t$cop, $CRd, $addr!"> {
3648 let Inst{24} = 1; // P = 1
3649 let Inst{23} = addr{8};
3650 let Inst{22} = Dbit;
3651 let Inst{21} = 1; // W = 1
3652 let Inst{20} = load;
3653 let Inst{19-16} = addr{12-9};
3654 let Inst{15-12} = CRd;
3655 let Inst{11-8} = cop;
3656 let Inst{7-0} = addr{7-0};
3657 let DecoderMethod = "DecodeCopMemInstruction";
3659 def _POST: T2CI<op31_28,
3660 (outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
3661 postidx_imm8s4:$offset),
3662 asm, "\t$cop, $CRd, $addr, $offset"> {
3667 let Inst{24} = 0; // P = 0
3668 let Inst{23} = offset{8};
3669 let Inst{22} = Dbit;
3670 let Inst{21} = 1; // W = 1
3671 let Inst{20} = load;
3672 let Inst{19-16} = addr;
3673 let Inst{15-12} = CRd;
3674 let Inst{11-8} = cop;
3675 let Inst{7-0} = offset{7-0};
3676 let DecoderMethod = "DecodeCopMemInstruction";
3678 def _OPTION : T2CI<op31_28, (outs),
3679 (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
3680 coproc_option_imm:$option),
3681 asm, "\t$cop, $CRd, $addr, $option"> {
3686 let Inst{24} = 0; // P = 0
3687 let Inst{23} = 1; // U = 1
3688 let Inst{22} = Dbit;
3689 let Inst{21} = 0; // W = 0
3690 let Inst{20} = load;
3691 let Inst{19-16} = addr;
3692 let Inst{15-12} = CRd;
3693 let Inst{11-8} = cop;
3694 let Inst{7-0} = option;
3695 let DecoderMethod = "DecodeCopMemInstruction";
3699 defm t2LDC : t2LdStCop<0b1110, 1, 0, "ldc">;
3700 defm t2LDCL : t2LdStCop<0b1110, 1, 1, "ldcl">;
3701 defm t2STC : t2LdStCop<0b1110, 0, 0, "stc">;
3702 defm t2STCL : t2LdStCop<0b1110, 0, 1, "stcl">;
3703 defm t2LDC2 : t2LdStCop<0b1111, 1, 0, "ldc2">;
3704 defm t2LDC2L : t2LdStCop<0b1111, 1, 1, "ldc2l">;
3705 defm t2STC2 : t2LdStCop<0b1111, 0, 0, "stc2">;
3706 defm t2STC2L : t2LdStCop<0b1111, 0, 1, "stc2l">;
3709 //===----------------------------------------------------------------------===//
3710 // Move between special register and ARM core register -- for disassembly only
3712 // Move to ARM core register from Special Register
3716 // A/R class can only move from CPSR or SPSR.
3717 def t2MRS_AR : T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, apsr",
3718 []>, Requires<[IsThumb2,IsARClass]> {
3720 let Inst{31-12} = 0b11110011111011111000;
3721 let Inst{11-8} = Rd;
3722 let Inst{7-0} = 0b0000;
3725 def : t2InstAlias<"mrs${p} $Rd, cpsr", (t2MRS_AR GPR:$Rd, pred:$p)>;
3727 def t2MRSsys_AR: T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3728 []>, Requires<[IsThumb2,IsARClass]> {
3730 let Inst{31-12} = 0b11110011111111111000;
3731 let Inst{11-8} = Rd;
3732 let Inst{7-0} = 0b0000;
3737 // This MRS has a mask field in bits 7-0 and can take more values than
3738 // the A/R class (a full msr_mask).
3739 def t2MRS_M : T2I<(outs rGPR:$Rd), (ins msr_mask:$mask), NoItinerary,
3740 "mrs", "\t$Rd, $mask", []>,
3741 Requires<[IsThumb,IsMClass]> {
3744 let Inst{31-12} = 0b11110011111011111000;
3745 let Inst{11-8} = Rd;
3746 let Inst{19-16} = 0b1111;
3747 let Inst{7-0} = mask;
3751 // Move from ARM core register to Special Register
3755 // No need to have both system and application versions, the encodings are the
3756 // same and the assembly parser has no way to distinguish between them. The mask
3757 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3758 // the mask with the fields to be accessed in the special register.
3759 def t2MSR_AR : T2I<(outs), (ins msr_mask:$mask, rGPR:$Rn),
3760 NoItinerary, "msr", "\t$mask, $Rn", []>,
3761 Requires<[IsThumb2,IsARClass]> {
3764 let Inst{31-21} = 0b11110011100;
3765 let Inst{20} = mask{4}; // R Bit
3766 let Inst{19-16} = Rn;
3767 let Inst{15-12} = 0b1000;
3768 let Inst{11-8} = mask{3-0};
3774 // Move from ARM core register to Special Register
3775 def t2MSR_M : T2I<(outs), (ins msr_mask:$SYSm, rGPR:$Rn),
3776 NoItinerary, "msr", "\t$SYSm, $Rn", []>,
3777 Requires<[IsThumb,IsMClass]> {
3780 let Inst{31-21} = 0b11110011100;
3782 let Inst{19-16} = Rn;
3783 let Inst{15-12} = 0b1000;
3784 let Inst{11-0} = SYSm;
3788 //===----------------------------------------------------------------------===//
3789 // Move between coprocessor and ARM core register
3792 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
3794 : T2Cop<Op, oops, iops,
3795 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3797 let Inst{27-24} = 0b1110;
3798 let Inst{20} = direction;
3808 let Inst{15-12} = Rt;
3809 let Inst{11-8} = cop;
3810 let Inst{23-21} = opc1;
3811 let Inst{7-5} = opc2;
3812 let Inst{3-0} = CRm;
3813 let Inst{19-16} = CRn;
3816 class t2MovRRCopro<bits<4> Op, string opc, bit direction,
3817 list<dag> pattern = []>
3819 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3820 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
3821 let Inst{27-24} = 0b1100;
3822 let Inst{23-21} = 0b010;
3823 let Inst{20} = direction;
3831 let Inst{15-12} = Rt;
3832 let Inst{19-16} = Rt2;
3833 let Inst{11-8} = cop;
3834 let Inst{7-4} = opc1;
3835 let Inst{3-0} = CRm;
3838 /* from ARM core register to coprocessor */
3839 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
3841 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3842 c_imm:$CRm, imm0_7:$opc2),
3843 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3844 imm:$CRm, imm:$opc2)]>;
3845 def : t2InstAlias<"mcr $cop, $opc1, $Rt, $CRn, $CRm",
3846 (t2MCR p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3848 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
3849 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3850 c_imm:$CRm, imm0_7:$opc2),
3851 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3852 imm:$CRm, imm:$opc2)]>;
3853 def : t2InstAlias<"mcr2 $cop, $opc1, $Rt, $CRn, $CRm",
3854 (t2MCR2 p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3857 /* from coprocessor to ARM core register */
3858 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
3859 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3860 c_imm:$CRm, imm0_7:$opc2), []>;
3861 def : t2InstAlias<"mrc $cop, $opc1, $Rt, $CRn, $CRm",
3862 (t2MRC GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3865 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
3866 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3867 c_imm:$CRm, imm0_7:$opc2), []>;
3868 def : t2InstAlias<"mrc2 $cop, $opc1, $Rt, $CRn, $CRm",
3869 (t2MRC2 GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3872 def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3873 (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3875 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3876 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3879 /* from ARM core register to coprocessor */
3880 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0,
3881 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
3883 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0,
3884 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
3885 GPR:$Rt2, imm:$CRm)]>;
3886 /* from coprocessor to ARM core register */
3887 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>;
3889 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1>;
3891 //===----------------------------------------------------------------------===//
3892 // Other Coprocessor Instructions.
3895 def tCDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3896 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3897 "cdp\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3898 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3899 imm:$CRm, imm:$opc2)]> {
3900 let Inst{27-24} = 0b1110;
3909 let Inst{3-0} = CRm;
3911 let Inst{7-5} = opc2;
3912 let Inst{11-8} = cop;
3913 let Inst{15-12} = CRd;
3914 let Inst{19-16} = CRn;
3915 let Inst{23-20} = opc1;
3918 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3919 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3920 "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3921 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3922 imm:$CRm, imm:$opc2)]> {
3923 let Inst{27-24} = 0b1110;
3932 let Inst{3-0} = CRm;
3934 let Inst{7-5} = opc2;
3935 let Inst{11-8} = cop;
3936 let Inst{15-12} = CRd;
3937 let Inst{19-16} = CRn;
3938 let Inst{23-20} = opc1;
3943 //===----------------------------------------------------------------------===//
3944 // Non-Instruction Patterns
3947 // SXT/UXT with no rotate
3948 let AddedComplexity = 16 in {
3949 def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>,
3950 Requires<[IsThumb2]>;
3951 def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>,
3952 Requires<[IsThumb2]>;
3953 def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>,
3954 Requires<[HasT2ExtractPack, IsThumb2]>;
3955 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)),
3956 (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3957 Requires<[HasT2ExtractPack, IsThumb2]>;
3958 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)),
3959 (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3960 Requires<[HasT2ExtractPack, IsThumb2]>;
3963 def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>,
3964 Requires<[IsThumb2]>;
3965 def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>,
3966 Requires<[IsThumb2]>;
3967 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)),
3968 (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3969 Requires<[HasT2ExtractPack, IsThumb2]>;
3970 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)),
3971 (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3972 Requires<[HasT2ExtractPack, IsThumb2]>;
3974 // Atomic load/store patterns
3975 def : T2Pat<(atomic_load_8 t2addrmode_imm12:$addr),
3976 (t2LDRBi12 t2addrmode_imm12:$addr)>;
3977 def : T2Pat<(atomic_load_8 t2addrmode_negimm8:$addr),
3978 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
3979 def : T2Pat<(atomic_load_8 t2addrmode_so_reg:$addr),
3980 (t2LDRBs t2addrmode_so_reg:$addr)>;
3981 def : T2Pat<(atomic_load_16 t2addrmode_imm12:$addr),
3982 (t2LDRHi12 t2addrmode_imm12:$addr)>;
3983 def : T2Pat<(atomic_load_16 t2addrmode_negimm8:$addr),
3984 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
3985 def : T2Pat<(atomic_load_16 t2addrmode_so_reg:$addr),
3986 (t2LDRHs t2addrmode_so_reg:$addr)>;
3987 def : T2Pat<(atomic_load_32 t2addrmode_imm12:$addr),
3988 (t2LDRi12 t2addrmode_imm12:$addr)>;
3989 def : T2Pat<(atomic_load_32 t2addrmode_negimm8:$addr),
3990 (t2LDRi8 t2addrmode_negimm8:$addr)>;
3991 def : T2Pat<(atomic_load_32 t2addrmode_so_reg:$addr),
3992 (t2LDRs t2addrmode_so_reg:$addr)>;
3993 def : T2Pat<(atomic_store_8 t2addrmode_imm12:$addr, GPR:$val),
3994 (t2STRBi12 GPR:$val, t2addrmode_imm12:$addr)>;
3995 def : T2Pat<(atomic_store_8 t2addrmode_negimm8:$addr, GPR:$val),
3996 (t2STRBi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3997 def : T2Pat<(atomic_store_8 t2addrmode_so_reg:$addr, GPR:$val),
3998 (t2STRBs GPR:$val, t2addrmode_so_reg:$addr)>;
3999 def : T2Pat<(atomic_store_16 t2addrmode_imm12:$addr, GPR:$val),
4000 (t2STRHi12 GPR:$val, t2addrmode_imm12:$addr)>;
4001 def : T2Pat<(atomic_store_16 t2addrmode_negimm8:$addr, GPR:$val),
4002 (t2STRHi8 GPR:$val, t2addrmode_negimm8:$addr)>;
4003 def : T2Pat<(atomic_store_16 t2addrmode_so_reg:$addr, GPR:$val),
4004 (t2STRHs GPR:$val, t2addrmode_so_reg:$addr)>;
4005 def : T2Pat<(atomic_store_32 t2addrmode_imm12:$addr, GPR:$val),
4006 (t2STRi12 GPR:$val, t2addrmode_imm12:$addr)>;
4007 def : T2Pat<(atomic_store_32 t2addrmode_negimm8:$addr, GPR:$val),
4008 (t2STRi8 GPR:$val, t2addrmode_negimm8:$addr)>;
4009 def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val),
4010 (t2STRs GPR:$val, t2addrmode_so_reg:$addr)>;
4013 //===----------------------------------------------------------------------===//
4014 // Assembler aliases
4017 // Aliases for ADC without the ".w" optional width specifier.
4018 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm",
4019 (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4020 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm",
4021 (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
4022 pred:$p, cc_out:$s)>;
4024 // Aliases for SBC without the ".w" optional width specifier.
4025 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm",
4026 (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4027 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
4028 (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
4029 pred:$p, cc_out:$s)>;
4031 // Aliases for ADD without the ".w" optional width specifier.
4032 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4033 (t2ADDri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4034 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
4035 (t2ADDri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
4036 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
4037 (t2ADDrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4038 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
4039 (t2ADDrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
4040 pred:$p, cc_out:$s)>;
4041 // ... and with the destination and source register combined.
4042 def : t2InstAlias<"add${s}${p} $Rdn, $imm",
4043 (t2ADDri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4044 def : t2InstAlias<"add${p} $Rdn, $imm",
4045 (t2ADDri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
4046 def : t2InstAlias<"add${s}${p} $Rdn, $Rm",
4047 (t2ADDrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4048 def : t2InstAlias<"add${s}${p} $Rdn, $ShiftedRm",
4049 (t2ADDrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
4050 pred:$p, cc_out:$s)>;
4052 // add w/ negative immediates is just a sub.
4053 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4054 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
4056 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
4057 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4058 def : t2InstAlias<"add${s}${p} $Rdn, $imm",
4059 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4061 def : t2InstAlias<"add${p} $Rdn, $imm",
4062 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4064 def : t2InstAlias<"add${s}${p}.w $Rd, $Rn, $imm",
4065 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
4067 def : t2InstAlias<"addw${p} $Rd, $Rn, $imm",
4068 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4069 def : t2InstAlias<"add${s}${p}.w $Rdn, $imm",
4070 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4072 def : t2InstAlias<"addw${p} $Rdn, $imm",
4073 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4076 // Aliases for SUB without the ".w" optional width specifier.
4077 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm",
4078 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4079 def : t2InstAlias<"sub${p} $Rd, $Rn, $imm",
4080 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
4081 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $Rm",
4082 (t2SUBrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4083 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $ShiftedRm",
4084 (t2SUBrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
4085 pred:$p, cc_out:$s)>;
4086 // ... and with the destination and source register combined.
4087 def : t2InstAlias<"sub${s}${p} $Rdn, $imm",
4088 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4089 def : t2InstAlias<"sub${p} $Rdn, $imm",
4090 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
4091 def : t2InstAlias<"sub${s}${p}.w $Rdn, $Rm",
4092 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4093 def : t2InstAlias<"sub${s}${p} $Rdn, $Rm",
4094 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4095 def : t2InstAlias<"sub${s}${p} $Rdn, $ShiftedRm",
4096 (t2SUBrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
4097 pred:$p, cc_out:$s)>;
4099 // Alias for compares without the ".w" optional width specifier.
4100 def : t2InstAlias<"cmn${p} $Rn, $Rm",
4101 (t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4102 def : t2InstAlias<"teq${p} $Rn, $Rm",
4103 (t2TEQrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4104 def : t2InstAlias<"tst${p} $Rn, $Rm",
4105 (t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4108 def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb, HasDB]>;
4109 def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb, HasDB]>;
4110 def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb, HasDB]>;
4112 // Alias for LDR, LDRB, LDRH, LDRSB, and LDRSH without the ".w" optional
4114 def : t2InstAlias<"ldr${p} $Rt, $addr",
4115 (t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4116 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4117 (t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4118 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4119 (t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4120 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4121 (t2LDRSBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4122 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4123 (t2LDRSHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4125 def : t2InstAlias<"ldr${p} $Rt, $addr",
4126 (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4127 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4128 (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4129 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4130 (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4131 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4132 (t2LDRSBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4133 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4134 (t2LDRSHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4136 def : t2InstAlias<"ldr${p} $Rt, $addr",
4137 (t2LDRpci GPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4138 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4139 (t2LDRBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4140 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4141 (t2LDRHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4142 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4143 (t2LDRSBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4144 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4145 (t2LDRSHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4147 // Alias for MVN with(out) the ".w" optional width specifier.
4148 def : t2InstAlias<"mvn${s}${p}.w $Rd, $imm",
4149 (t2MVNi rGPR:$Rd, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4150 def : t2InstAlias<"mvn${s}${p} $Rd, $Rm",
4151 (t2MVNr rGPR:$Rd, rGPR:$Rm, pred:$p, cc_out:$s)>;
4152 def : t2InstAlias<"mvn${s}${p} $Rd, $ShiftedRm",
4153 (t2MVNs rGPR:$Rd, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>;
4155 // PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT when the
4156 // shift amount is zero (i.e., unspecified).
4157 def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
4158 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
4159 Requires<[HasT2ExtractPack, IsThumb2]>;
4160 def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
4161 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
4162 Requires<[HasT2ExtractPack, IsThumb2]>;
4164 // PUSH/POP aliases for STM/LDM
4165 def : t2InstAlias<"push${p}.w $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
4166 def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
4167 def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4168 def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4170 // STMIA/STMIA_UPD aliases w/o the optional .w suffix
4171 def : t2InstAlias<"stm${p} $Rn, $regs",
4172 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4173 def : t2InstAlias<"stm${p} $Rn!, $regs",
4174 (t2STMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4176 // LDMIA/LDMIA_UPD aliases w/o the optional .w suffix
4177 def : t2InstAlias<"ldm${p} $Rn, $regs",
4178 (t2LDMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4179 def : t2InstAlias<"ldm${p} $Rn!, $regs",
4180 (t2LDMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4182 // STMDB/STMDB_UPD aliases w/ the optional .w suffix
4183 def : t2InstAlias<"stmdb${p}.w $Rn, $regs",
4184 (t2STMDB GPR:$Rn, pred:$p, reglist:$regs)>;
4185 def : t2InstAlias<"stmdb${p}.w $Rn!, $regs",
4186 (t2STMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4188 // LDMDB/LDMDB_UPD aliases w/ the optional .w suffix
4189 def : t2InstAlias<"ldmdb${p}.w $Rn, $regs",
4190 (t2LDMDB GPR:$Rn, pred:$p, reglist:$regs)>;
4191 def : t2InstAlias<"ldmdb${p}.w $Rn!, $regs",
4192 (t2LDMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4194 // Alias for REV/REV16/REVSH without the ".w" optional width specifier.
4195 def : t2InstAlias<"rev${p} $Rd, $Rm", (t2REV rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4196 def : t2InstAlias<"rev16${p} $Rd, $Rm", (t2REV16 rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4197 def : t2InstAlias<"revsh${p} $Rd, $Rm", (t2REVSH rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4200 // Alias for RSB without the ".w" optional width specifier, and with optional
4201 // implied destination register.
4202 def : t2InstAlias<"rsb${s}${p} $Rd, $Rn, $imm",
4203 (t2RSBri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4204 def : t2InstAlias<"rsb${s}${p} $Rdn, $imm",
4205 (t2RSBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4206 def : t2InstAlias<"rsb${s}${p} $Rdn, $Rm",
4207 (t2RSBrr rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4208 def : t2InstAlias<"rsb${s}${p} $Rdn, $ShiftedRm",
4209 (t2RSBrs rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$ShiftedRm, pred:$p,
4212 // SSAT/USAT optional shift operand.
4213 def : t2InstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
4214 (t2SSAT rGPR:$Rd, imm1_32:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
4215 def : t2InstAlias<"usat${p} $Rd, $sat_imm, $Rn",
4216 (t2USAT rGPR:$Rd, imm0_31:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
4218 // STM w/o the .w suffix.
4219 def : t2InstAlias<"stm${p} $Rn, $regs",
4220 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4222 // Alias for STR, STRB, and STRH without the ".w" optional
4224 def : t2InstAlias<"str${p} $Rt, $addr",
4225 (t2STRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4226 def : t2InstAlias<"strb${p} $Rt, $addr",
4227 (t2STRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4228 def : t2InstAlias<"strh${p} $Rt, $addr",
4229 (t2STRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4231 def : t2InstAlias<"str${p} $Rt, $addr",
4232 (t2STRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4233 def : t2InstAlias<"strb${p} $Rt, $addr",
4234 (t2STRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4235 def : t2InstAlias<"strh${p} $Rt, $addr",
4236 (t2STRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4238 // Extend instruction optional rotate operand.
4239 def : t2InstAlias<"sxtab${p} $Rd, $Rn, $Rm",
4240 (t2SXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4241 def : t2InstAlias<"sxtah${p} $Rd, $Rn, $Rm",
4242 (t2SXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4243 def : t2InstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
4244 (t2SXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4246 def : t2InstAlias<"sxtb${p} $Rd, $Rm",
4247 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4248 def : t2InstAlias<"sxtb16${p} $Rd, $Rm",
4249 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4250 def : t2InstAlias<"sxth${p} $Rd, $Rm",
4251 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4252 def : t2InstAlias<"sxtb${p}.w $Rd, $Rm",
4253 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4254 def : t2InstAlias<"sxth${p}.w $Rd, $Rm",
4255 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4257 def : t2InstAlias<"uxtab${p} $Rd, $Rn, $Rm",
4258 (t2UXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4259 def : t2InstAlias<"uxtah${p} $Rd, $Rn, $Rm",
4260 (t2UXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4261 def : t2InstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
4262 (t2UXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4263 def : t2InstAlias<"uxtb${p} $Rd, $Rm",
4264 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4265 def : t2InstAlias<"uxtb16${p} $Rd, $Rm",
4266 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4267 def : t2InstAlias<"uxth${p} $Rd, $Rm",
4268 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4270 def : t2InstAlias<"uxtb${p}.w $Rd, $Rm",
4271 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4272 def : t2InstAlias<"uxth${p}.w $Rd, $Rm",
4273 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4275 // Extend instruction w/o the ".w" optional width specifier.
4276 def : t2InstAlias<"uxtb${p} $Rd, $Rm$rot",
4277 (t2UXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4278 def : t2InstAlias<"uxtb16${p} $Rd, $Rm$rot",
4279 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4280 def : t2InstAlias<"uxth${p} $Rd, $Rm$rot",
4281 (t2UXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4283 def : t2InstAlias<"sxtb${p} $Rd, $Rm$rot",
4284 (t2SXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4285 def : t2InstAlias<"sxtb16${p} $Rd, $Rm$rot",
4286 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4287 def : t2InstAlias<"sxth${p} $Rd, $Rm$rot",
4288 (t2SXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4291 // "mov Rd, t2_so_imm_not" can be handled via "mvn" in assembly, just like
4293 def : t2InstAlias<"mov${p} $Rd, $imm",
4294 (t2MVNi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
4295 def : t2InstAlias<"mvn${p} $Rd, $imm",
4296 (t2MOVi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
4297 // Same for AND <--> BIC
4298 def : t2InstAlias<"bic${s}${p} $Rd, $Rn, $imm",
4299 (t2ANDri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
4300 pred:$p, cc_out:$s)>;
4301 def : t2InstAlias<"bic${s}${p} $Rdn, $imm",
4302 (t2ANDri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
4303 pred:$p, cc_out:$s)>;
4304 def : t2InstAlias<"and${s}${p} $Rd, $Rn, $imm",
4305 (t2BICri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
4306 pred:$p, cc_out:$s)>;
4307 def : t2InstAlias<"and${s}${p} $Rdn, $imm",
4308 (t2BICri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
4309 pred:$p, cc_out:$s)>;
4310 // Likewise, "add Rd, t2_so_imm_neg" -> sub
4311 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4312 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm,
4313 pred:$p, cc_out:$s)>;
4314 def : t2InstAlias<"add${s}${p} $Rd, $imm",
4315 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rd, t2_so_imm_neg:$imm,
4316 pred:$p, cc_out:$s)>;
4317 // Same for CMP <--> CMN via t2_so_imm_neg
4318 def : t2InstAlias<"cmp${p} $Rd, $imm",
4319 (t2CMNri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
4320 def : t2InstAlias<"cmn${p} $Rd, $imm",
4321 (t2CMPri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
4324 // Wide 'mul' encoding can be specified with only two operands.
4325 def : t2InstAlias<"mul${p} $Rn, $Rm",
4326 (t2MUL rGPR:$Rn, rGPR:$Rm, rGPR:$Rn, pred:$p)>;
4328 // "neg" is and alias for "rsb rd, rn, #0"
4329 def : t2InstAlias<"neg${s}${p} $Rd, $Rm",
4330 (t2RSBri rGPR:$Rd, rGPR:$Rm, 0, pred:$p, cc_out:$s)>;
4332 // MOV so_reg assembler pseudos. InstAlias isn't expressive enough for
4333 // these, unfortunately.
4334 def t2MOVsi: t2AsmPseudo<"mov${p} $Rd, $shift",
4335 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
4336 def t2MOVSsi: t2AsmPseudo<"movs${p} $Rd, $shift",
4337 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
4339 def t2MOVsr: t2AsmPseudo<"mov${p} $Rd, $shift",
4340 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
4341 def t2MOVSsr: t2AsmPseudo<"movs${p} $Rd, $shift",
4342 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
4344 // ADR w/o the .w suffix
4345 def : t2InstAlias<"adr${p} $Rd, $addr",
4346 (t2ADR rGPR:$Rd, t2adrlabel:$addr, pred:$p)>;
4348 // LDR(literal) w/ alternate [pc, #imm] syntax.
4349 def t2LDRpcrel : t2AsmPseudo<"ldr${p} $Rt, $addr",
4350 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4351 def t2LDRBpcrel : t2AsmPseudo<"ldrb${p} $Rt, $addr",
4352 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4353 def t2LDRHpcrel : t2AsmPseudo<"ldrh${p} $Rt, $addr",
4354 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4355 def t2LDRSBpcrel : t2AsmPseudo<"ldrsb${p} $Rt, $addr",
4356 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4357 def t2LDRSHpcrel : t2AsmPseudo<"ldrsh${p} $Rt, $addr",
4358 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4359 // Version w/ the .w suffix.
4360 def : t2InstAlias<"ldr${p}.w $Rt, $addr",
4361 (t2LDRpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4362 def : t2InstAlias<"ldrb${p}.w $Rt, $addr",
4363 (t2LDRBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4364 def : t2InstAlias<"ldrh${p}.w $Rt, $addr",
4365 (t2LDRHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4366 def : t2InstAlias<"ldrsb${p}.w $Rt, $addr",
4367 (t2LDRSBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4368 def : t2InstAlias<"ldrsh${p}.w $Rt, $addr",
4369 (t2LDRSHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4371 def : t2InstAlias<"add${p} $Rd, pc, $imm",
4372 (t2ADR rGPR:$Rd, imm0_4095:$imm, pred:$p)>;