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 let Inst{31-27} = 0b11110;
560 let Inst{24-21} = opcod;
564 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
565 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
566 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
567 let isCommutable = Commutable;
568 let Inst{31-27} = 0b11101;
569 let Inst{26-25} = 0b01;
570 let Inst{24-21} = opcod;
571 let Inst{14-12} = 0b000; // imm3
572 let Inst{7-6} = 0b00; // imm2
573 let Inst{5-4} = 0b00; // type
576 def rs : T2sTwoRegShiftedReg<
577 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
578 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
579 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
580 let Inst{31-27} = 0b11101;
581 let Inst{26-25} = 0b01;
582 let Inst{24-21} = opcod;
584 // Assembly aliases for optional destination operand when it's the same
585 // as the source operand.
586 def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
587 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn,
588 t2_so_imm:$imm, pred:$p,
590 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
591 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn,
594 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
595 (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn,
596 t2_so_reg:$shift, pred:$p,
600 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
601 // the ".w" suffix to indicate that they are wide.
602 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
603 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
604 PatFrag opnode, bit Commutable = 0> :
605 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w"> {
606 // Assembler aliases w/ the ".w" suffix.
607 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rd, $Rn, $imm"),
608 (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p,
610 // Assembler aliases w/o the ".w" suffix.
611 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
612 (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
614 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"),
615 (!cast<Instruction>(NAME#"rs") rGPR:$Rd, rGPR:$Rn, t2_so_reg:$shift,
616 pred:$p, cc_out:$s)>;
618 // and with the optional destination operand, too.
619 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rdn, $imm"),
620 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm,
621 pred:$p, cc_out:$s)>;
622 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
623 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
625 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"),
626 (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$shift,
627 pred:$p, cc_out:$s)>;
630 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
631 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
632 /// it is equivalent to the T2I_bin_irs counterpart.
633 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
635 def ri : T2sTwoRegImm<
636 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
637 opc, ".w\t$Rd, $Rn, $imm",
638 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
639 let Inst{31-27} = 0b11110;
641 let Inst{24-21} = opcod;
645 def rr : T2sThreeReg<
646 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
647 opc, "\t$Rd, $Rn, $Rm",
648 [/* For disassembly only; pattern left blank */]> {
649 let Inst{31-27} = 0b11101;
650 let Inst{26-25} = 0b01;
651 let Inst{24-21} = opcod;
652 let Inst{14-12} = 0b000; // imm3
653 let Inst{7-6} = 0b00; // imm2
654 let Inst{5-4} = 0b00; // type
657 def rs : T2sTwoRegShiftedReg<
658 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
659 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
660 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
661 let Inst{31-27} = 0b11101;
662 let Inst{26-25} = 0b01;
663 let Inst{24-21} = opcod;
667 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
668 /// instruction modifies the CPSR register.
670 /// These opcodes will be converted to the real non-S opcodes by
671 /// AdjustInstrPostInstrSelection after giving then an optional CPSR operand.
672 let hasPostISelHook = 1, Defs = [CPSR] in {
673 multiclass T2I_bin_s_irs<InstrItinClass iii, InstrItinClass iir,
674 InstrItinClass iis, PatFrag opnode,
675 bit Commutable = 0> {
677 def ri : t2PseudoInst<(outs rGPR:$Rd),
678 (ins GPRnopc:$Rn, t2_so_imm:$imm, pred:$p),
680 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
683 def rr : t2PseudoInst<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm, pred:$p),
685 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
687 let isCommutable = Commutable;
690 def rs : t2PseudoInst<(outs rGPR:$Rd),
691 (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
693 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
694 t2_so_reg:$ShiftedRm))]>;
698 /// T2I_rbin_s_is - Same as T2I_bin_s_irs, except selection DAG
699 /// operands are reversed.
700 let hasPostISelHook = 1, Defs = [CPSR] in {
701 multiclass T2I_rbin_s_is<PatFrag opnode> {
703 def ri : t2PseudoInst<(outs rGPR:$Rd),
704 (ins rGPR:$Rn, t2_so_imm:$imm, pred:$p),
706 [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm,
709 def rs : t2PseudoInst<(outs rGPR:$Rd),
710 (ins rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
712 [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm,
717 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
718 /// patterns for a binary operation that produces a value.
719 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
720 bit Commutable = 0> {
722 // The register-immediate version is re-materializable. This is useful
723 // in particular for taking the address of a local.
724 let isReMaterializable = 1 in {
725 def ri : T2sTwoRegImm<
726 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
727 opc, ".w\t$Rd, $Rn, $imm",
728 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]> {
729 let Inst{31-27} = 0b11110;
732 let Inst{23-21} = op23_21;
738 (outs GPRnopc:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
739 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
740 [(set GPRnopc:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
744 let Inst{31-27} = 0b11110;
745 let Inst{26} = imm{11};
746 let Inst{25-24} = 0b10;
747 let Inst{23-21} = op23_21;
748 let Inst{20} = 0; // The S bit.
749 let Inst{19-16} = Rn;
751 let Inst{14-12} = imm{10-8};
753 let Inst{7-0} = imm{7-0};
756 def rr : T2sThreeReg<(outs GPRnopc:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm),
757 IIC_iALUr, opc, ".w\t$Rd, $Rn, $Rm",
758 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]> {
759 let isCommutable = Commutable;
760 let Inst{31-27} = 0b11101;
761 let Inst{26-25} = 0b01;
763 let Inst{23-21} = op23_21;
764 let Inst{14-12} = 0b000; // imm3
765 let Inst{7-6} = 0b00; // imm2
766 let Inst{5-4} = 0b00; // type
769 def rs : T2sTwoRegShiftedReg<
770 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
771 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
772 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]> {
773 let Inst{31-27} = 0b11101;
774 let Inst{26-25} = 0b01;
776 let Inst{23-21} = op23_21;
780 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
781 /// for a binary operation that produces a value and use the carry
782 /// bit. It's not predicable.
783 let Defs = [CPSR], Uses = [CPSR] in {
784 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
785 bit Commutable = 0> {
787 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
788 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
789 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_imm:$imm, CPSR))]>,
790 Requires<[IsThumb2]> {
791 let Inst{31-27} = 0b11110;
793 let Inst{24-21} = opcod;
797 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
798 opc, ".w\t$Rd, $Rn, $Rm",
799 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, rGPR:$Rm, CPSR))]>,
800 Requires<[IsThumb2]> {
801 let isCommutable = Commutable;
802 let Inst{31-27} = 0b11101;
803 let Inst{26-25} = 0b01;
804 let Inst{24-21} = opcod;
805 let Inst{14-12} = 0b000; // imm3
806 let Inst{7-6} = 0b00; // imm2
807 let Inst{5-4} = 0b00; // type
810 def rs : T2sTwoRegShiftedReg<
811 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
812 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
813 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm, CPSR))]>,
814 Requires<[IsThumb2]> {
815 let Inst{31-27} = 0b11101;
816 let Inst{26-25} = 0b01;
817 let Inst{24-21} = opcod;
822 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
823 // rotate operation that produces a value.
824 multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, PatFrag opnode> {
826 def ri : T2sTwoRegShiftImm<
827 (outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi,
828 opc, ".w\t$Rd, $Rm, $imm",
829 [(set rGPR:$Rd, (opnode rGPR:$Rm, (i32 ty:$imm)))]> {
830 let Inst{31-27} = 0b11101;
831 let Inst{26-21} = 0b010010;
832 let Inst{19-16} = 0b1111; // Rn
833 let Inst{5-4} = opcod;
836 def rr : T2sThreeReg<
837 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
838 opc, ".w\t$Rd, $Rn, $Rm",
839 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
840 let Inst{31-27} = 0b11111;
841 let Inst{26-23} = 0b0100;
842 let Inst{22-21} = opcod;
843 let Inst{15-12} = 0b1111;
844 let Inst{7-4} = 0b0000;
847 // Optional destination register
848 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"),
849 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
851 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"),
852 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
855 // Assembler aliases w/o the ".w" suffix.
856 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"),
857 (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, ty:$imm, pred:$p,
859 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
860 (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
863 // and with the optional destination operand, too.
864 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"),
865 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
867 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
868 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
872 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
873 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
874 /// a explicit result, only implicitly set CPSR.
875 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
876 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
878 let isCompare = 1, Defs = [CPSR] in {
880 def ri : T2OneRegCmpImm<
881 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), iii,
882 opc, ".w\t$Rn, $imm",
883 [(opnode GPRnopc:$Rn, t2_so_imm:$imm)]> {
884 let Inst{31-27} = 0b11110;
886 let Inst{24-21} = opcod;
887 let Inst{20} = 1; // The S bit.
889 let Inst{11-8} = 0b1111; // Rd
892 def rr : T2TwoRegCmp<
893 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), iir,
895 [(opnode GPRnopc:$Rn, rGPR:$Rm)]> {
896 let Inst{31-27} = 0b11101;
897 let Inst{26-25} = 0b01;
898 let Inst{24-21} = opcod;
899 let Inst{20} = 1; // The S bit.
900 let Inst{14-12} = 0b000; // imm3
901 let Inst{11-8} = 0b1111; // Rd
902 let Inst{7-6} = 0b00; // imm2
903 let Inst{5-4} = 0b00; // type
906 def rs : T2OneRegCmpShiftedReg<
907 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), iis,
908 opc, ".w\t$Rn, $ShiftedRm",
909 [(opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]> {
910 let Inst{31-27} = 0b11101;
911 let Inst{26-25} = 0b01;
912 let Inst{24-21} = opcod;
913 let Inst{20} = 1; // The S bit.
914 let Inst{11-8} = 0b1111; // Rd
918 // Assembler aliases w/o the ".w" suffix.
919 // No alias here for 'rr' version as not all instantiations of this
920 // multiclass want one (CMP in particular, does not).
921 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"),
922 (!cast<Instruction>(NAME#"ri") GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>;
923 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"),
924 (!cast<Instruction>(NAME#"rs") GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>;
927 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
928 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
929 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
931 def i12 : T2Ii12<(outs target:$Rt), (ins t2addrmode_imm12:$addr), iii,
932 opc, ".w\t$Rt, $addr",
933 [(set target:$Rt, (opnode t2addrmode_imm12:$addr))]> {
936 let Inst{31-25} = 0b1111100;
937 let Inst{24} = signed;
939 let Inst{22-21} = opcod;
940 let Inst{20} = 1; // load
941 let Inst{19-16} = addr{16-13}; // Rn
942 let Inst{15-12} = Rt;
943 let Inst{11-0} = addr{11-0}; // imm
945 def i8 : T2Ii8 <(outs target:$Rt), (ins t2addrmode_negimm8:$addr), iii,
947 [(set target:$Rt, (opnode t2addrmode_negimm8:$addr))]> {
950 let Inst{31-27} = 0b11111;
951 let Inst{26-25} = 0b00;
952 let Inst{24} = signed;
954 let Inst{22-21} = opcod;
955 let Inst{20} = 1; // load
956 let Inst{19-16} = addr{12-9}; // Rn
957 let Inst{15-12} = Rt;
959 // Offset: index==TRUE, wback==FALSE
960 let Inst{10} = 1; // The P bit.
961 let Inst{9} = addr{8}; // U
962 let Inst{8} = 0; // The W bit.
963 let Inst{7-0} = addr{7-0}; // imm
965 def s : T2Iso <(outs target:$Rt), (ins t2addrmode_so_reg:$addr), iis,
966 opc, ".w\t$Rt, $addr",
967 [(set target:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
968 let Inst{31-27} = 0b11111;
969 let Inst{26-25} = 0b00;
970 let Inst{24} = signed;
972 let Inst{22-21} = opcod;
973 let Inst{20} = 1; // load
974 let Inst{11-6} = 0b000000;
977 let Inst{15-12} = Rt;
980 let Inst{19-16} = addr{9-6}; // Rn
981 let Inst{3-0} = addr{5-2}; // Rm
982 let Inst{5-4} = addr{1-0}; // imm
984 let DecoderMethod = "DecodeT2LoadShift";
987 // pci variant is very similar to i12, but supports negative offsets
989 def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
990 opc, ".w\t$Rt, $addr",
991 [(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
992 let isReMaterializable = 1;
993 let Inst{31-27} = 0b11111;
994 let Inst{26-25} = 0b00;
995 let Inst{24} = signed;
996 let Inst{23} = ?; // add = (U == '1')
997 let Inst{22-21} = opcod;
998 let Inst{20} = 1; // load
999 let Inst{19-16} = 0b1111; // Rn
1002 let Inst{15-12} = Rt{3-0};
1003 let Inst{11-0} = addr{11-0};
1007 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
1008 multiclass T2I_st<bits<2> opcod, string opc,
1009 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
1011 def i12 : T2Ii12<(outs), (ins target:$Rt, t2addrmode_imm12:$addr), iii,
1012 opc, ".w\t$Rt, $addr",
1013 [(opnode target:$Rt, t2addrmode_imm12:$addr)]> {
1014 let Inst{31-27} = 0b11111;
1015 let Inst{26-23} = 0b0001;
1016 let Inst{22-21} = opcod;
1017 let Inst{20} = 0; // !load
1020 let Inst{15-12} = Rt;
1023 let addr{12} = 1; // add = TRUE
1024 let Inst{19-16} = addr{16-13}; // Rn
1025 let Inst{23} = addr{12}; // U
1026 let Inst{11-0} = addr{11-0}; // imm
1028 def i8 : T2Ii8 <(outs), (ins target:$Rt, t2addrmode_negimm8:$addr), iii,
1029 opc, "\t$Rt, $addr",
1030 [(opnode target:$Rt, t2addrmode_negimm8:$addr)]> {
1031 let Inst{31-27} = 0b11111;
1032 let Inst{26-23} = 0b0000;
1033 let Inst{22-21} = opcod;
1034 let Inst{20} = 0; // !load
1036 // Offset: index==TRUE, wback==FALSE
1037 let Inst{10} = 1; // The P bit.
1038 let Inst{8} = 0; // The W bit.
1041 let Inst{15-12} = Rt;
1044 let Inst{19-16} = addr{12-9}; // Rn
1045 let Inst{9} = addr{8}; // U
1046 let Inst{7-0} = addr{7-0}; // imm
1048 def s : T2Iso <(outs), (ins target:$Rt, t2addrmode_so_reg:$addr), iis,
1049 opc, ".w\t$Rt, $addr",
1050 [(opnode target:$Rt, t2addrmode_so_reg:$addr)]> {
1051 let Inst{31-27} = 0b11111;
1052 let Inst{26-23} = 0b0000;
1053 let Inst{22-21} = opcod;
1054 let Inst{20} = 0; // !load
1055 let Inst{11-6} = 0b000000;
1058 let Inst{15-12} = Rt;
1061 let Inst{19-16} = addr{9-6}; // Rn
1062 let Inst{3-0} = addr{5-2}; // Rm
1063 let Inst{5-4} = addr{1-0}; // imm
1067 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
1068 /// register and one whose operand is a register rotated by 8/16/24.
1069 class T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode>
1070 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1071 opc, ".w\t$Rd, $Rm$rot",
1072 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1073 Requires<[IsThumb2]> {
1074 let Inst{31-27} = 0b11111;
1075 let Inst{26-23} = 0b0100;
1076 let Inst{22-20} = opcod;
1077 let Inst{19-16} = 0b1111; // Rn
1078 let Inst{15-12} = 0b1111;
1082 let Inst{5-4} = rot{1-0}; // rotate
1085 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
1086 class T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode>
1087 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot),
1088 IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
1089 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1090 Requires<[HasT2ExtractPack, IsThumb2]> {
1092 let Inst{31-27} = 0b11111;
1093 let Inst{26-23} = 0b0100;
1094 let Inst{22-20} = opcod;
1095 let Inst{19-16} = 0b1111; // Rn
1096 let Inst{15-12} = 0b1111;
1098 let Inst{5-4} = rot;
1101 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1103 class T2I_ext_rrot_sxtb16<bits<3> opcod, string opc>
1104 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1105 opc, "\t$Rd, $Rm$rot", []>,
1106 Requires<[IsThumb2, HasT2ExtractPack]> {
1108 let Inst{31-27} = 0b11111;
1109 let Inst{26-23} = 0b0100;
1110 let Inst{22-20} = opcod;
1111 let Inst{19-16} = 0b1111; // Rn
1112 let Inst{15-12} = 0b1111;
1114 let Inst{5-4} = rot;
1117 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1118 /// register and one whose operand is a register rotated by 8/16/24.
1119 class T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode>
1120 : T2ThreeReg<(outs rGPR:$Rd),
1121 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1122 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot",
1123 [(set rGPR:$Rd, (opnode rGPR:$Rn, (rotr rGPR:$Rm,rot_imm:$rot)))]>,
1124 Requires<[HasT2ExtractPack, IsThumb2]> {
1126 let Inst{31-27} = 0b11111;
1127 let Inst{26-23} = 0b0100;
1128 let Inst{22-20} = opcod;
1129 let Inst{15-12} = 0b1111;
1131 let Inst{5-4} = rot;
1134 class T2I_exta_rrot_np<bits<3> opcod, string opc>
1135 : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm,rot_imm:$rot),
1136 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []> {
1138 let Inst{31-27} = 0b11111;
1139 let Inst{26-23} = 0b0100;
1140 let Inst{22-20} = opcod;
1141 let Inst{15-12} = 0b1111;
1143 let Inst{5-4} = rot;
1146 //===----------------------------------------------------------------------===//
1148 //===----------------------------------------------------------------------===//
1150 //===----------------------------------------------------------------------===//
1151 // Miscellaneous Instructions.
1154 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1155 string asm, list<dag> pattern>
1156 : T2XI<oops, iops, itin, asm, pattern> {
1160 let Inst{11-8} = Rd;
1161 let Inst{26} = label{11};
1162 let Inst{14-12} = label{10-8};
1163 let Inst{7-0} = label{7-0};
1166 // LEApcrel - Load a pc-relative address into a register without offending the
1168 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1169 (ins t2adrlabel:$addr, pred:$p),
1170 IIC_iALUi, "adr{$p}.w\t$Rd, $addr", []> {
1171 let Inst{31-27} = 0b11110;
1172 let Inst{25-24} = 0b10;
1173 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1176 let Inst{19-16} = 0b1111; // Rn
1181 let Inst{11-8} = Rd;
1182 let Inst{23} = addr{12};
1183 let Inst{21} = addr{12};
1184 let Inst{26} = addr{11};
1185 let Inst{14-12} = addr{10-8};
1186 let Inst{7-0} = addr{7-0};
1188 let DecoderMethod = "DecodeT2Adr";
1191 let neverHasSideEffects = 1, isReMaterializable = 1 in
1192 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1194 let hasSideEffects = 1 in
1195 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1196 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1201 //===----------------------------------------------------------------------===//
1202 // Load / store Instructions.
1206 let canFoldAsLoad = 1, isReMaterializable = 1 in
1207 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si, GPR,
1208 UnOpFrag<(load node:$Src)>>;
1210 // Loads with zero extension
1211 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1212 rGPR, UnOpFrag<(zextloadi16 node:$Src)>>;
1213 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1214 rGPR, UnOpFrag<(zextloadi8 node:$Src)>>;
1216 // Loads with sign extension
1217 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1218 rGPR, UnOpFrag<(sextloadi16 node:$Src)>>;
1219 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1220 rGPR, UnOpFrag<(sextloadi8 node:$Src)>>;
1222 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1224 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1225 (ins t2addrmode_imm8s4:$addr),
1226 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", "", []>;
1227 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1229 // zextload i1 -> zextload i8
1230 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1231 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1232 def : T2Pat<(zextloadi1 t2addrmode_negimm8:$addr),
1233 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1234 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1235 (t2LDRBs t2addrmode_so_reg:$addr)>;
1236 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1237 (t2LDRBpci tconstpool:$addr)>;
1239 // extload -> zextload
1240 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1242 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1243 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1244 def : T2Pat<(extloadi1 t2addrmode_negimm8:$addr),
1245 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1246 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1247 (t2LDRBs t2addrmode_so_reg:$addr)>;
1248 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1249 (t2LDRBpci tconstpool:$addr)>;
1251 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1252 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1253 def : T2Pat<(extloadi8 t2addrmode_negimm8:$addr),
1254 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1255 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1256 (t2LDRBs t2addrmode_so_reg:$addr)>;
1257 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1258 (t2LDRBpci tconstpool:$addr)>;
1260 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1261 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1262 def : T2Pat<(extloadi16 t2addrmode_negimm8:$addr),
1263 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
1264 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1265 (t2LDRHs t2addrmode_so_reg:$addr)>;
1266 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1267 (t2LDRHpci tconstpool:$addr)>;
1269 // FIXME: The destination register of the loads and stores can't be PC, but
1270 // can be SP. We need another regclass (similar to rGPR) to represent
1271 // that. Not a pressing issue since these are selected manually,
1276 let mayLoad = 1, neverHasSideEffects = 1 in {
1277 def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1278 (ins t2addrmode_imm8:$addr),
1279 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1280 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1282 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1285 def t2LDR_POST : T2Ipostldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1286 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1287 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1288 "ldr", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1290 def t2LDRB_PRE : T2Ipreldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1291 (ins t2addrmode_imm8:$addr),
1292 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1293 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1295 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1297 def t2LDRB_POST : T2Ipostldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1298 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1299 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1300 "ldrb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1302 def t2LDRH_PRE : T2Ipreldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1303 (ins t2addrmode_imm8:$addr),
1304 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1305 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1307 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1309 def t2LDRH_POST : T2Ipostldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1310 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1311 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1312 "ldrh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1314 def t2LDRSB_PRE : T2Ipreldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1315 (ins t2addrmode_imm8:$addr),
1316 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1317 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1319 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1321 def t2LDRSB_POST : T2Ipostldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1322 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1323 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1324 "ldrsb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1326 def t2LDRSH_PRE : T2Ipreldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1327 (ins t2addrmode_imm8:$addr),
1328 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1329 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1331 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1333 def t2LDRSH_POST : T2Ipostldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1334 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1335 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1336 "ldrsh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1337 } // mayLoad = 1, neverHasSideEffects = 1
1339 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110).
1340 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1341 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1342 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_posimm8:$addr), ii, opc,
1343 "\t$Rt, $addr", []> {
1346 let Inst{31-27} = 0b11111;
1347 let Inst{26-25} = 0b00;
1348 let Inst{24} = signed;
1350 let Inst{22-21} = type;
1351 let Inst{20} = 1; // load
1352 let Inst{19-16} = addr{12-9};
1353 let Inst{15-12} = Rt;
1355 let Inst{10-8} = 0b110; // PUW.
1356 let Inst{7-0} = addr{7-0};
1359 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1360 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1361 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1362 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1363 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1366 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si, GPR,
1367 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1368 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1369 rGPR, BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1370 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1371 rGPR, BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1374 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1375 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1376 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1377 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", "", []>;
1381 let mayStore = 1, neverHasSideEffects = 1 in {
1382 def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
1383 (ins GPRnopc:$Rt, t2addrmode_imm8:$addr),
1384 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1385 "str", "\t$Rt, $addr!",
1386 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1387 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1389 def t2STRH_PRE : T2Ipreldst<0, 0b01, 0, 1, (outs GPRnopc:$Rn_wb),
1390 (ins rGPR:$Rt, t2addrmode_imm8:$addr),
1391 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1392 "strh", "\t$Rt, $addr!",
1393 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1394 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1397 def t2STRB_PRE : T2Ipreldst<0, 0b00, 0, 1, (outs GPRnopc:$Rn_wb),
1398 (ins rGPR:$Rt, t2addrmode_imm8:$addr),
1399 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1400 "strb", "\t$Rt, $addr!",
1401 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1402 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1404 } // mayStore = 1, neverHasSideEffects = 1
1406 def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
1407 (ins GPRnopc:$Rt, addr_offset_none:$Rn,
1408 t2am_imm8_offset:$offset),
1409 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1410 "str", "\t$Rt, $Rn$offset",
1411 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1412 [(set GPRnopc:$Rn_wb,
1413 (post_store GPRnopc:$Rt, addr_offset_none:$Rn,
1414 t2am_imm8_offset:$offset))]>;
1416 def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb),
1417 (ins rGPR:$Rt, addr_offset_none:$Rn,
1418 t2am_imm8_offset:$offset),
1419 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1420 "strh", "\t$Rt, $Rn$offset",
1421 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1422 [(set GPRnopc:$Rn_wb,
1423 (post_truncsti16 rGPR:$Rt, addr_offset_none:$Rn,
1424 t2am_imm8_offset:$offset))]>;
1426 def t2STRB_POST : T2Ipostldst<0, 0b00, 0, 0, (outs GPRnopc:$Rn_wb),
1427 (ins rGPR:$Rt, addr_offset_none:$Rn,
1428 t2am_imm8_offset:$offset),
1429 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1430 "strb", "\t$Rt, $Rn$offset",
1431 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1432 [(set GPRnopc:$Rn_wb,
1433 (post_truncsti8 rGPR:$Rt, addr_offset_none:$Rn,
1434 t2am_imm8_offset:$offset))]>;
1436 // Pseudo-instructions for pattern matching the pre-indexed stores. We can't
1437 // put the patterns on the instruction definitions directly as ISel wants
1438 // the address base and offset to be separate operands, not a single
1439 // complex operand like we represent the instructions themselves. The
1440 // pseudos map between the two.
1441 let usesCustomInserter = 1,
1442 Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in {
1443 def t2STR_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1444 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1446 [(set GPRnopc:$Rn_wb,
1447 (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1448 def t2STRB_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1449 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1451 [(set GPRnopc:$Rn_wb,
1452 (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1453 def t2STRH_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1454 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1456 [(set GPRnopc:$Rn_wb,
1457 (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1460 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1462 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1463 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1464 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1465 "\t$Rt, $addr", []> {
1466 let Inst{31-27} = 0b11111;
1467 let Inst{26-25} = 0b00;
1468 let Inst{24} = 0; // not signed
1470 let Inst{22-21} = type;
1471 let Inst{20} = 0; // store
1473 let Inst{10-8} = 0b110; // PUW
1477 let Inst{15-12} = Rt;
1478 let Inst{19-16} = addr{12-9};
1479 let Inst{7-0} = addr{7-0};
1482 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1483 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1484 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1486 // ldrd / strd pre / post variants
1487 // For disassembly only.
1489 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1490 (ins t2addrmode_imm8s4:$addr), IIC_iLoad_d_ru,
1491 "ldrd", "\t$Rt, $Rt2, $addr!", "$addr.base = $wb", []> {
1492 let AsmMatchConverter = "cvtT2LdrdPre";
1493 let DecoderMethod = "DecodeT2LDRDPreInstruction";
1496 def t2LDRD_POST : T2Ii8s4post<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1497 (ins addr_offset_none:$addr, t2am_imm8s4_offset:$imm),
1498 IIC_iLoad_d_ru, "ldrd", "\t$Rt, $Rt2, $addr$imm",
1499 "$addr.base = $wb", []>;
1501 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs GPR:$wb),
1502 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4:$addr),
1503 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr!",
1504 "$addr.base = $wb", []> {
1505 let AsmMatchConverter = "cvtT2StrdPre";
1506 let DecoderMethod = "DecodeT2STRDPreInstruction";
1509 def t2STRD_POST : T2Ii8s4post<0, 1, 0, (outs GPR:$wb),
1510 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr,
1511 t2am_imm8s4_offset:$imm),
1512 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr$imm",
1513 "$addr.base = $wb", []>;
1515 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1516 // data/instruction access.
1517 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1518 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1519 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1521 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1523 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1524 let Inst{31-25} = 0b1111100;
1525 let Inst{24} = instr;
1527 let Inst{21} = write;
1529 let Inst{15-12} = 0b1111;
1532 let addr{12} = 1; // add = TRUE
1533 let Inst{19-16} = addr{16-13}; // Rn
1534 let Inst{23} = addr{12}; // U
1535 let Inst{11-0} = addr{11-0}; // imm12
1538 def i8 : T2Ii8<(outs), (ins t2addrmode_negimm8:$addr), IIC_Preload, opc,
1540 [(ARMPreload t2addrmode_negimm8:$addr, (i32 write), (i32 instr))]> {
1541 let Inst{31-25} = 0b1111100;
1542 let Inst{24} = instr;
1543 let Inst{23} = 0; // U = 0
1545 let Inst{21} = write;
1547 let Inst{15-12} = 0b1111;
1548 let Inst{11-8} = 0b1100;
1551 let Inst{19-16} = addr{12-9}; // Rn
1552 let Inst{7-0} = addr{7-0}; // imm8
1555 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1557 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1558 let Inst{31-25} = 0b1111100;
1559 let Inst{24} = instr;
1560 let Inst{23} = 0; // add = TRUE for T1
1562 let Inst{21} = write;
1564 let Inst{15-12} = 0b1111;
1565 let Inst{11-6} = 0000000;
1568 let Inst{19-16} = addr{9-6}; // Rn
1569 let Inst{3-0} = addr{5-2}; // Rm
1570 let Inst{5-4} = addr{1-0}; // imm2
1572 let DecoderMethod = "DecodeT2LoadShift";
1574 // FIXME: We should have a separate 'pci' variant here. As-is we represent
1575 // it via the i12 variant, which it's related to, but that means we can
1576 // represent negative immediates, which aren't legal for anything except
1577 // the 'pci' case (Rn == 15).
1580 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1581 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1582 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1584 //===----------------------------------------------------------------------===//
1585 // Load / store multiple Instructions.
1588 multiclass thumb2_ld_mult<string asm, InstrItinClass itin,
1589 InstrItinClass itin_upd, bit L_bit> {
1591 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1592 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1596 let Inst{31-27} = 0b11101;
1597 let Inst{26-25} = 0b00;
1598 let Inst{24-23} = 0b01; // Increment After
1600 let Inst{21} = 0; // No writeback
1601 let Inst{20} = L_bit;
1602 let Inst{19-16} = Rn;
1603 let Inst{15-0} = regs;
1606 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1607 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1611 let Inst{31-27} = 0b11101;
1612 let Inst{26-25} = 0b00;
1613 let Inst{24-23} = 0b01; // Increment After
1615 let Inst{21} = 1; // Writeback
1616 let Inst{20} = L_bit;
1617 let Inst{19-16} = Rn;
1618 let Inst{15-0} = regs;
1621 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1622 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1626 let Inst{31-27} = 0b11101;
1627 let Inst{26-25} = 0b00;
1628 let Inst{24-23} = 0b10; // Decrement Before
1630 let Inst{21} = 0; // No writeback
1631 let Inst{20} = L_bit;
1632 let Inst{19-16} = Rn;
1633 let Inst{15-0} = regs;
1636 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1637 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1641 let Inst{31-27} = 0b11101;
1642 let Inst{26-25} = 0b00;
1643 let Inst{24-23} = 0b10; // Decrement Before
1645 let Inst{21} = 1; // Writeback
1646 let Inst{20} = L_bit;
1647 let Inst{19-16} = Rn;
1648 let Inst{15-0} = regs;
1652 let neverHasSideEffects = 1 in {
1654 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1655 defm t2LDM : thumb2_ld_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1657 multiclass thumb2_st_mult<string asm, InstrItinClass itin,
1658 InstrItinClass itin_upd, bit L_bit> {
1660 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1661 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1665 let Inst{31-27} = 0b11101;
1666 let Inst{26-25} = 0b00;
1667 let Inst{24-23} = 0b01; // Increment After
1669 let Inst{21} = 0; // No writeback
1670 let Inst{20} = L_bit;
1671 let Inst{19-16} = Rn;
1673 let Inst{14} = regs{14};
1675 let Inst{12-0} = regs{12-0};
1678 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1679 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1683 let Inst{31-27} = 0b11101;
1684 let Inst{26-25} = 0b00;
1685 let Inst{24-23} = 0b01; // Increment After
1687 let Inst{21} = 1; // Writeback
1688 let Inst{20} = L_bit;
1689 let Inst{19-16} = Rn;
1691 let Inst{14} = regs{14};
1693 let Inst{12-0} = regs{12-0};
1696 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1697 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1701 let Inst{31-27} = 0b11101;
1702 let Inst{26-25} = 0b00;
1703 let Inst{24-23} = 0b10; // Decrement Before
1705 let Inst{21} = 0; // No writeback
1706 let Inst{20} = L_bit;
1707 let Inst{19-16} = Rn;
1709 let Inst{14} = regs{14};
1711 let Inst{12-0} = regs{12-0};
1714 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1715 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1719 let Inst{31-27} = 0b11101;
1720 let Inst{26-25} = 0b00;
1721 let Inst{24-23} = 0b10; // Decrement Before
1723 let Inst{21} = 1; // Writeback
1724 let Inst{20} = L_bit;
1725 let Inst{19-16} = Rn;
1727 let Inst{14} = regs{14};
1729 let Inst{12-0} = regs{12-0};
1734 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1735 defm t2STM : thumb2_st_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1737 } // neverHasSideEffects
1740 //===----------------------------------------------------------------------===//
1741 // Move Instructions.
1744 let neverHasSideEffects = 1 in
1745 def t2MOVr : T2sTwoReg<(outs GPRnopc:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1746 "mov", ".w\t$Rd, $Rm", []> {
1747 let Inst{31-27} = 0b11101;
1748 let Inst{26-25} = 0b01;
1749 let Inst{24-21} = 0b0010;
1750 let Inst{19-16} = 0b1111; // Rn
1751 let Inst{14-12} = 0b000;
1752 let Inst{7-4} = 0b0000;
1754 def : t2InstAlias<"mov${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1755 pred:$p, zero_reg)>;
1756 def : t2InstAlias<"movs${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1758 def : t2InstAlias<"movs${p} $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1761 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1762 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1763 AddedComplexity = 1 in
1764 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1765 "mov", ".w\t$Rd, $imm",
1766 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1767 let Inst{31-27} = 0b11110;
1769 let Inst{24-21} = 0b0010;
1770 let Inst{19-16} = 0b1111; // Rn
1774 // cc_out is handled as part of the explicit mnemonic in the parser for 'mov'.
1775 // Use aliases to get that to play nice here.
1776 def : t2InstAlias<"movs${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1778 def : t2InstAlias<"movs${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1781 def : t2InstAlias<"mov${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1782 pred:$p, zero_reg)>;
1783 def : t2InstAlias<"mov${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1784 pred:$p, zero_reg)>;
1786 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1787 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
1788 "movw", "\t$Rd, $imm",
1789 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1790 let Inst{31-27} = 0b11110;
1792 let Inst{24-21} = 0b0010;
1793 let Inst{20} = 0; // The S bit.
1799 let Inst{11-8} = Rd;
1800 let Inst{19-16} = imm{15-12};
1801 let Inst{26} = imm{11};
1802 let Inst{14-12} = imm{10-8};
1803 let Inst{7-0} = imm{7-0};
1804 let DecoderMethod = "DecodeT2MOVTWInstruction";
1807 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1808 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1810 let Constraints = "$src = $Rd" in {
1811 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1812 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
1813 "movt", "\t$Rd, $imm",
1815 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1816 let Inst{31-27} = 0b11110;
1818 let Inst{24-21} = 0b0110;
1819 let Inst{20} = 0; // The S bit.
1825 let Inst{11-8} = Rd;
1826 let Inst{19-16} = imm{15-12};
1827 let Inst{26} = imm{11};
1828 let Inst{14-12} = imm{10-8};
1829 let Inst{7-0} = imm{7-0};
1830 let DecoderMethod = "DecodeT2MOVTWInstruction";
1833 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1834 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1837 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1839 //===----------------------------------------------------------------------===//
1840 // Extend Instructions.
1845 def t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1846 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1847 def t2SXTH : T2I_ext_rrot<0b000, "sxth",
1848 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1849 def t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1851 def t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1852 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1853 def t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1854 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1855 def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
1859 let AddedComplexity = 16 in {
1860 def t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1861 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1862 def t2UXTH : T2I_ext_rrot<0b001, "uxth",
1863 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1864 def t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1865 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1867 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1868 // The transformation should probably be done as a combiner action
1869 // instead so we can include a check for masking back in the upper
1870 // eight bits of the source into the lower eight bits of the result.
1871 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1872 // (t2UXTB16 rGPR:$Src, 3)>,
1873 // Requires<[HasT2ExtractPack, IsThumb2]>;
1874 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1875 (t2UXTB16 rGPR:$Src, 1)>,
1876 Requires<[HasT2ExtractPack, IsThumb2]>;
1878 def t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1879 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1880 def t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1881 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1882 def t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">;
1885 //===----------------------------------------------------------------------===//
1886 // Arithmetic Instructions.
1889 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1890 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1891 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1892 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1894 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1896 // Currently, t2ADDS/t2SUBS are pseudo opcodes that exist only in the
1897 // selection DAG. They are "lowered" to real t2ADD/t2SUB opcodes by
1898 // AdjustInstrPostInstrSelection where we determine whether or not to
1899 // set the "s" bit based on CPSR liveness.
1901 // FIXME: Eliminate t2ADDS/t2SUBS pseudo opcodes after adding tablegen
1902 // support for an optional CPSR definition that corresponds to the DAG
1903 // node's second value. We can then eliminate the implicit def of CPSR.
1904 defm t2ADDS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1905 BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>;
1906 defm t2SUBS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1907 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1909 let hasPostISelHook = 1 in {
1910 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1911 BinOpWithFlagFrag<(ARMadde node:$LHS, node:$RHS, node:$FLAG)>, 1>;
1912 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1913 BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>>;
1917 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1918 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1920 // FIXME: Eliminate them if we can write def : Pat patterns which defines
1921 // CPSR and the implicit def of CPSR is not needed.
1922 defm t2RSBS : T2I_rbin_s_is <BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1924 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1925 // The assume-no-carry-in form uses the negation of the input since add/sub
1926 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1927 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1929 // The AddedComplexity preferences the first variant over the others since
1930 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1931 let AddedComplexity = 1 in
1932 def : T2Pat<(add GPR:$src, imm1_255_neg:$imm),
1933 (t2SUBri GPR:$src, imm1_255_neg:$imm)>;
1934 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1935 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1936 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1937 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1938 def : T2Pat<(add GPR:$src, imm0_65535_neg:$imm),
1939 (t2SUBrr GPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
1941 let AddedComplexity = 1 in
1942 def : T2Pat<(ARMaddc rGPR:$src, imm1_255_neg:$imm),
1943 (t2SUBSri rGPR:$src, imm1_255_neg:$imm)>;
1944 def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm),
1945 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1946 def : T2Pat<(ARMaddc rGPR:$src, imm0_65535_neg:$imm),
1947 (t2SUBSrr rGPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
1948 // The with-carry-in form matches bitwise not instead of the negation.
1949 // Effectively, the inverse interpretation of the carry flag already accounts
1950 // for part of the negation.
1951 let AddedComplexity = 1 in
1952 def : T2Pat<(ARMadde rGPR:$src, imm0_255_not:$imm, CPSR),
1953 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
1954 def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR),
1955 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
1956 def : T2Pat<(ARMadde rGPR:$src, imm0_65535_neg:$imm, CPSR),
1957 (t2SBCrr rGPR:$src, (t2MOVi16 (imm_not_XFORM imm:$imm)))>;
1959 // Select Bytes -- for disassembly only
1961 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1962 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []>,
1963 Requires<[IsThumb2, HasThumb2DSP]> {
1964 let Inst{31-27} = 0b11111;
1965 let Inst{26-24} = 0b010;
1967 let Inst{22-20} = 0b010;
1968 let Inst{15-12} = 0b1111;
1970 let Inst{6-4} = 0b000;
1973 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1974 // And Miscellaneous operations -- for disassembly only
1975 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1976 list<dag> pat = [/* For disassembly only; pattern left blank */],
1977 dag iops = (ins rGPR:$Rn, rGPR:$Rm),
1978 string asm = "\t$Rd, $Rn, $Rm">
1979 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
1980 Requires<[IsThumb2, HasThumb2DSP]> {
1981 let Inst{31-27} = 0b11111;
1982 let Inst{26-23} = 0b0101;
1983 let Inst{22-20} = op22_20;
1984 let Inst{15-12} = 0b1111;
1985 let Inst{7-4} = op7_4;
1991 let Inst{11-8} = Rd;
1992 let Inst{19-16} = Rn;
1996 // Saturating add/subtract -- for disassembly only
1998 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1999 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))],
2000 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2001 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
2002 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
2003 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
2004 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [],
2005 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2006 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [],
2007 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2008 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
2009 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
2010 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))],
2011 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2012 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
2013 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
2014 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
2015 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
2016 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
2017 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
2018 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
2019 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
2021 // Signed/Unsigned add/subtract -- for disassembly only
2023 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
2024 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
2025 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
2026 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
2027 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
2028 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
2029 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
2030 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
2031 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
2032 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
2033 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
2034 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
2036 // Signed/Unsigned halving add/subtract -- for disassembly only
2038 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
2039 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
2040 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
2041 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
2042 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
2043 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
2044 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
2045 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
2046 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
2047 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
2048 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
2049 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
2051 // Helper class for disassembly only
2052 // A6.3.16 & A6.3.17
2053 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
2054 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2055 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2056 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2057 let Inst{31-27} = 0b11111;
2058 let Inst{26-24} = 0b011;
2059 let Inst{23} = long;
2060 let Inst{22-20} = op22_20;
2061 let Inst{7-4} = op7_4;
2064 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2065 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2066 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
2067 let Inst{31-27} = 0b11111;
2068 let Inst{26-24} = 0b011;
2069 let Inst{23} = long;
2070 let Inst{22-20} = op22_20;
2071 let Inst{7-4} = op7_4;
2074 // Unsigned Sum of Absolute Differences [and Accumulate].
2075 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2076 (ins rGPR:$Rn, rGPR:$Rm),
2077 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>,
2078 Requires<[IsThumb2, HasThumb2DSP]> {
2079 let Inst{15-12} = 0b1111;
2081 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2082 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
2083 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>,
2084 Requires<[IsThumb2, HasThumb2DSP]>;
2086 // Signed/Unsigned saturate.
2087 class T2SatI<dag oops, dag iops, InstrItinClass itin,
2088 string opc, string asm, list<dag> pattern>
2089 : T2I<oops, iops, itin, opc, asm, pattern> {
2095 let Inst{11-8} = Rd;
2096 let Inst{19-16} = Rn;
2097 let Inst{4-0} = sat_imm;
2098 let Inst{21} = sh{5};
2099 let Inst{14-12} = sh{4-2};
2100 let Inst{7-6} = sh{1-0};
2105 (ins imm1_32:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2106 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2107 let Inst{31-27} = 0b11110;
2108 let Inst{25-22} = 0b1100;
2114 def t2SSAT16: T2SatI<
2115 (outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary,
2116 "ssat16", "\t$Rd, $sat_imm, $Rn", []>,
2117 Requires<[IsThumb2, HasThumb2DSP]> {
2118 let Inst{31-27} = 0b11110;
2119 let Inst{25-22} = 0b1100;
2122 let Inst{21} = 1; // sh = '1'
2123 let Inst{14-12} = 0b000; // imm3 = '000'
2124 let Inst{7-6} = 0b00; // imm2 = '00'
2125 let Inst{5-4} = 0b00;
2130 (ins imm0_31:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2131 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2132 let Inst{31-27} = 0b11110;
2133 let Inst{25-22} = 0b1110;
2138 def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins imm0_15:$sat_imm, rGPR:$Rn),
2140 "usat16", "\t$Rd, $sat_imm, $Rn", []>,
2141 Requires<[IsThumb2, HasThumb2DSP]> {
2142 let Inst{31-22} = 0b1111001110;
2145 let Inst{21} = 1; // sh = '1'
2146 let Inst{14-12} = 0b000; // imm3 = '000'
2147 let Inst{7-6} = 0b00; // imm2 = '00'
2148 let Inst{5-4} = 0b00;
2151 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2152 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2154 //===----------------------------------------------------------------------===//
2155 // Shift and rotate Instructions.
2158 defm t2LSL : T2I_sh_ir<0b00, "lsl", imm0_31,
2159 BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2160 defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr,
2161 BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2162 defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr,
2163 BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2164 defm t2ROR : T2I_sh_ir<0b11, "ror", imm0_31,
2165 BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2167 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
2168 def : T2Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
2169 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
2171 let Uses = [CPSR] in {
2172 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2173 "rrx", "\t$Rd, $Rm",
2174 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2175 let Inst{31-27} = 0b11101;
2176 let Inst{26-25} = 0b01;
2177 let Inst{24-21} = 0b0010;
2178 let Inst{19-16} = 0b1111; // Rn
2179 let Inst{14-12} = 0b000;
2180 let Inst{7-4} = 0b0011;
2184 let isCodeGenOnly = 1, Defs = [CPSR] in {
2185 def t2MOVsrl_flag : T2TwoRegShiftImm<
2186 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2187 "lsrs", ".w\t$Rd, $Rm, #1",
2188 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2189 let Inst{31-27} = 0b11101;
2190 let Inst{26-25} = 0b01;
2191 let Inst{24-21} = 0b0010;
2192 let Inst{20} = 1; // The S bit.
2193 let Inst{19-16} = 0b1111; // Rn
2194 let Inst{5-4} = 0b01; // Shift type.
2195 // Shift amount = Inst{14-12:7-6} = 1.
2196 let Inst{14-12} = 0b000;
2197 let Inst{7-6} = 0b01;
2199 def t2MOVsra_flag : T2TwoRegShiftImm<
2200 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2201 "asrs", ".w\t$Rd, $Rm, #1",
2202 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2203 let Inst{31-27} = 0b11101;
2204 let Inst{26-25} = 0b01;
2205 let Inst{24-21} = 0b0010;
2206 let Inst{20} = 1; // The S bit.
2207 let Inst{19-16} = 0b1111; // Rn
2208 let Inst{5-4} = 0b10; // Shift type.
2209 // Shift amount = Inst{14-12:7-6} = 1.
2210 let Inst{14-12} = 0b000;
2211 let Inst{7-6} = 0b01;
2215 //===----------------------------------------------------------------------===//
2216 // Bitwise Instructions.
2219 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2220 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2221 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2222 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2223 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2224 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2225 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2226 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2227 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2229 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2230 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2231 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2233 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2234 string opc, string asm, list<dag> pattern>
2235 : T2I<oops, iops, itin, opc, asm, pattern> {
2240 let Inst{11-8} = Rd;
2241 let Inst{4-0} = msb{4-0};
2242 let Inst{14-12} = lsb{4-2};
2243 let Inst{7-6} = lsb{1-0};
2246 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2247 string opc, string asm, list<dag> pattern>
2248 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2251 let Inst{19-16} = Rn;
2254 let Constraints = "$src = $Rd" in
2255 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2256 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2257 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2258 let Inst{31-27} = 0b11110;
2259 let Inst{26} = 0; // should be 0.
2261 let Inst{24-20} = 0b10110;
2262 let Inst{19-16} = 0b1111; // Rn
2264 let Inst{5} = 0; // should be 0.
2267 let msb{4-0} = imm{9-5};
2268 let lsb{4-0} = imm{4-0};
2271 def t2SBFX: T2TwoRegBitFI<
2272 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2273 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2274 let Inst{31-27} = 0b11110;
2276 let Inst{24-20} = 0b10100;
2280 def t2UBFX: T2TwoRegBitFI<
2281 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2282 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2283 let Inst{31-27} = 0b11110;
2285 let Inst{24-20} = 0b11100;
2289 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2290 let Constraints = "$src = $Rd" in {
2291 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2292 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2293 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2294 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2295 bf_inv_mask_imm:$imm))]> {
2296 let Inst{31-27} = 0b11110;
2297 let Inst{26} = 0; // should be 0.
2299 let Inst{24-20} = 0b10110;
2301 let Inst{5} = 0; // should be 0.
2304 let msb{4-0} = imm{9-5};
2305 let lsb{4-0} = imm{4-0};
2309 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2310 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2311 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2313 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
2314 /// unary operation that produces a value. These are predicable and can be
2315 /// changed to modify CPSR.
2316 multiclass T2I_un_irs<bits<4> opcod, string opc,
2317 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
2319 bit Cheap = 0, bit ReMat = 0, bit MoveImm = 0> {
2321 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
2323 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
2324 let isAsCheapAsAMove = Cheap;
2325 let isReMaterializable = ReMat;
2326 let isMoveImm = MoveImm;
2327 let Inst{31-27} = 0b11110;
2329 let Inst{24-21} = opcod;
2330 let Inst{19-16} = 0b1111; // Rn
2334 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
2335 opc, ".w\t$Rd, $Rm",
2336 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
2337 let Inst{31-27} = 0b11101;
2338 let Inst{26-25} = 0b01;
2339 let Inst{24-21} = opcod;
2340 let Inst{19-16} = 0b1111; // Rn
2341 let Inst{14-12} = 0b000; // imm3
2342 let Inst{7-6} = 0b00; // imm2
2343 let Inst{5-4} = 0b00; // type
2346 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
2347 opc, ".w\t$Rd, $ShiftedRm",
2348 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
2349 let Inst{31-27} = 0b11101;
2350 let Inst{26-25} = 0b01;
2351 let Inst{24-21} = opcod;
2352 let Inst{19-16} = 0b1111; // Rn
2356 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2357 let AddedComplexity = 1 in
2358 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2359 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2360 UnOpFrag<(not node:$Src)>, 1, 1, 1>;
2362 let AddedComplexity = 1 in
2363 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2364 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2366 // top16Zero - answer true if the upper 16 bits of $src are 0, false otherwise
2367 def top16Zero: PatLeaf<(i32 rGPR:$src), [{
2368 return CurDAG->MaskedValueIsZero(SDValue(N,0), APInt::getHighBitsSet(32, 16));
2371 // so_imm_notSext is needed instead of so_imm_not, as the value of imm
2372 // will match the extended, not the original bitWidth for $src.
2373 def : T2Pat<(and top16Zero:$src, t2_so_imm_notSext:$imm),
2374 (t2BICri rGPR:$src, t2_so_imm_notSext:$imm)>;
2377 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2378 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2379 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2380 Requires<[IsThumb2]>;
2382 def : T2Pat<(t2_so_imm_not:$src),
2383 (t2MVNi t2_so_imm_not:$src)>;
2385 //===----------------------------------------------------------------------===//
2386 // Multiply Instructions.
2388 let isCommutable = 1 in
2389 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2390 "mul", "\t$Rd, $Rn, $Rm",
2391 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2392 let Inst{31-27} = 0b11111;
2393 let Inst{26-23} = 0b0110;
2394 let Inst{22-20} = 0b000;
2395 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2396 let Inst{7-4} = 0b0000; // Multiply
2399 def t2MLA: T2FourReg<
2400 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2401 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2402 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]>,
2403 Requires<[IsThumb2, UseMulOps]> {
2404 let Inst{31-27} = 0b11111;
2405 let Inst{26-23} = 0b0110;
2406 let Inst{22-20} = 0b000;
2407 let Inst{7-4} = 0b0000; // Multiply
2410 def t2MLS: T2FourReg<
2411 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2412 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2413 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]>,
2414 Requires<[IsThumb2, UseMulOps]> {
2415 let Inst{31-27} = 0b11111;
2416 let Inst{26-23} = 0b0110;
2417 let Inst{22-20} = 0b000;
2418 let Inst{7-4} = 0b0001; // Multiply and Subtract
2421 // Extra precision multiplies with low / high results
2422 let neverHasSideEffects = 1 in {
2423 let isCommutable = 1 in {
2424 def t2SMULL : T2MulLong<0b000, 0b0000,
2425 (outs rGPR:$RdLo, rGPR:$RdHi),
2426 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2427 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2429 def t2UMULL : T2MulLong<0b010, 0b0000,
2430 (outs rGPR:$RdLo, rGPR:$RdHi),
2431 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2432 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2435 // Multiply + accumulate
2436 def t2SMLAL : T2MlaLong<0b100, 0b0000,
2437 (outs rGPR:$RdLo, rGPR:$RdHi),
2438 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi), IIC_iMAC64,
2439 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2440 RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">;
2442 def t2UMLAL : T2MlaLong<0b110, 0b0000,
2443 (outs rGPR:$RdLo, rGPR:$RdHi),
2444 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi), IIC_iMAC64,
2445 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2446 RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">;
2448 def t2UMAAL : T2MulLong<0b110, 0b0110,
2449 (outs rGPR:$RdLo, rGPR:$RdHi),
2450 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2451 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2452 Requires<[IsThumb2, HasThumb2DSP]>;
2453 } // neverHasSideEffects
2455 // Rounding variants of the below included for disassembly only
2457 // Most significant word multiply
2458 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2459 "smmul", "\t$Rd, $Rn, $Rm",
2460 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]>,
2461 Requires<[IsThumb2, HasThumb2DSP]> {
2462 let Inst{31-27} = 0b11111;
2463 let Inst{26-23} = 0b0110;
2464 let Inst{22-20} = 0b101;
2465 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2466 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2469 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2470 "smmulr", "\t$Rd, $Rn, $Rm", []>,
2471 Requires<[IsThumb2, HasThumb2DSP]> {
2472 let Inst{31-27} = 0b11111;
2473 let Inst{26-23} = 0b0110;
2474 let Inst{22-20} = 0b101;
2475 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2476 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2479 def t2SMMLA : T2FourReg<
2480 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2481 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2482 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>,
2483 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2484 let Inst{31-27} = 0b11111;
2485 let Inst{26-23} = 0b0110;
2486 let Inst{22-20} = 0b101;
2487 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2490 def t2SMMLAR: T2FourReg<
2491 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2492 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
2493 Requires<[IsThumb2, HasThumb2DSP]> {
2494 let Inst{31-27} = 0b11111;
2495 let Inst{26-23} = 0b0110;
2496 let Inst{22-20} = 0b101;
2497 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2500 def t2SMMLS: T2FourReg<
2501 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2502 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2503 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>,
2504 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2505 let Inst{31-27} = 0b11111;
2506 let Inst{26-23} = 0b0110;
2507 let Inst{22-20} = 0b110;
2508 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2511 def t2SMMLSR:T2FourReg<
2512 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2513 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
2514 Requires<[IsThumb2, HasThumb2DSP]> {
2515 let Inst{31-27} = 0b11111;
2516 let Inst{26-23} = 0b0110;
2517 let Inst{22-20} = 0b110;
2518 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2521 multiclass T2I_smul<string opc, PatFrag opnode> {
2522 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2523 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2524 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2525 (sext_inreg rGPR:$Rm, i16)))]>,
2526 Requires<[IsThumb2, HasThumb2DSP]> {
2527 let Inst{31-27} = 0b11111;
2528 let Inst{26-23} = 0b0110;
2529 let Inst{22-20} = 0b001;
2530 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2531 let Inst{7-6} = 0b00;
2532 let Inst{5-4} = 0b00;
2535 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2536 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2537 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2538 (sra rGPR:$Rm, (i32 16))))]>,
2539 Requires<[IsThumb2, HasThumb2DSP]> {
2540 let Inst{31-27} = 0b11111;
2541 let Inst{26-23} = 0b0110;
2542 let Inst{22-20} = 0b001;
2543 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2544 let Inst{7-6} = 0b00;
2545 let Inst{5-4} = 0b01;
2548 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2549 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2550 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2551 (sext_inreg rGPR:$Rm, i16)))]>,
2552 Requires<[IsThumb2, HasThumb2DSP]> {
2553 let Inst{31-27} = 0b11111;
2554 let Inst{26-23} = 0b0110;
2555 let Inst{22-20} = 0b001;
2556 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2557 let Inst{7-6} = 0b00;
2558 let Inst{5-4} = 0b10;
2561 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2562 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2563 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2564 (sra rGPR:$Rm, (i32 16))))]>,
2565 Requires<[IsThumb2, HasThumb2DSP]> {
2566 let Inst{31-27} = 0b11111;
2567 let Inst{26-23} = 0b0110;
2568 let Inst{22-20} = 0b001;
2569 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2570 let Inst{7-6} = 0b00;
2571 let Inst{5-4} = 0b11;
2574 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2575 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2576 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2577 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]>,
2578 Requires<[IsThumb2, HasThumb2DSP]> {
2579 let Inst{31-27} = 0b11111;
2580 let Inst{26-23} = 0b0110;
2581 let Inst{22-20} = 0b011;
2582 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2583 let Inst{7-6} = 0b00;
2584 let Inst{5-4} = 0b00;
2587 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2588 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2589 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2590 (sra rGPR:$Rm, (i32 16))), (i32 16)))]>,
2591 Requires<[IsThumb2, HasThumb2DSP]> {
2592 let Inst{31-27} = 0b11111;
2593 let Inst{26-23} = 0b0110;
2594 let Inst{22-20} = 0b011;
2595 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2596 let Inst{7-6} = 0b00;
2597 let Inst{5-4} = 0b01;
2602 multiclass T2I_smla<string opc, PatFrag opnode> {
2604 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2605 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2606 [(set rGPR:$Rd, (add rGPR:$Ra,
2607 (opnode (sext_inreg rGPR:$Rn, i16),
2608 (sext_inreg rGPR:$Rm, i16))))]>,
2609 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2610 let Inst{31-27} = 0b11111;
2611 let Inst{26-23} = 0b0110;
2612 let Inst{22-20} = 0b001;
2613 let Inst{7-6} = 0b00;
2614 let Inst{5-4} = 0b00;
2618 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2619 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2620 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2621 (sra rGPR:$Rm, (i32 16)))))]>,
2622 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2623 let Inst{31-27} = 0b11111;
2624 let Inst{26-23} = 0b0110;
2625 let Inst{22-20} = 0b001;
2626 let Inst{7-6} = 0b00;
2627 let Inst{5-4} = 0b01;
2631 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2632 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2633 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2634 (sext_inreg rGPR:$Rm, i16))))]>,
2635 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2636 let Inst{31-27} = 0b11111;
2637 let Inst{26-23} = 0b0110;
2638 let Inst{22-20} = 0b001;
2639 let Inst{7-6} = 0b00;
2640 let Inst{5-4} = 0b10;
2644 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2645 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2646 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2647 (sra rGPR:$Rm, (i32 16)))))]>,
2648 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2649 let Inst{31-27} = 0b11111;
2650 let Inst{26-23} = 0b0110;
2651 let Inst{22-20} = 0b001;
2652 let Inst{7-6} = 0b00;
2653 let Inst{5-4} = 0b11;
2657 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2658 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2659 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2660 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]>,
2661 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2662 let Inst{31-27} = 0b11111;
2663 let Inst{26-23} = 0b0110;
2664 let Inst{22-20} = 0b011;
2665 let Inst{7-6} = 0b00;
2666 let Inst{5-4} = 0b00;
2670 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2671 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2672 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2673 (sra rGPR:$Rm, (i32 16))), (i32 16))))]>,
2674 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2675 let Inst{31-27} = 0b11111;
2676 let Inst{26-23} = 0b0110;
2677 let Inst{22-20} = 0b011;
2678 let Inst{7-6} = 0b00;
2679 let Inst{5-4} = 0b01;
2683 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2684 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2686 // Halfword multiple accumulate long: SMLAL<x><y>
2687 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2688 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2689 [/* For disassembly only; pattern left blank */]>,
2690 Requires<[IsThumb2, HasThumb2DSP]>;
2691 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2692 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2693 [/* For disassembly only; pattern left blank */]>,
2694 Requires<[IsThumb2, HasThumb2DSP]>;
2695 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2696 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2697 [/* For disassembly only; pattern left blank */]>,
2698 Requires<[IsThumb2, HasThumb2DSP]>;
2699 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2700 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2701 [/* For disassembly only; pattern left blank */]>,
2702 Requires<[IsThumb2, HasThumb2DSP]>;
2704 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2705 def t2SMUAD: T2ThreeReg_mac<
2706 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2707 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>,
2708 Requires<[IsThumb2, HasThumb2DSP]> {
2709 let Inst{15-12} = 0b1111;
2711 def t2SMUADX:T2ThreeReg_mac<
2712 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2713 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []>,
2714 Requires<[IsThumb2, HasThumb2DSP]> {
2715 let Inst{15-12} = 0b1111;
2717 def t2SMUSD: T2ThreeReg_mac<
2718 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2719 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []>,
2720 Requires<[IsThumb2, HasThumb2DSP]> {
2721 let Inst{15-12} = 0b1111;
2723 def t2SMUSDX:T2ThreeReg_mac<
2724 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2725 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []>,
2726 Requires<[IsThumb2, HasThumb2DSP]> {
2727 let Inst{15-12} = 0b1111;
2729 def t2SMLAD : T2FourReg_mac<
2730 0, 0b010, 0b0000, (outs rGPR:$Rd),
2731 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2732 "\t$Rd, $Rn, $Rm, $Ra", []>,
2733 Requires<[IsThumb2, HasThumb2DSP]>;
2734 def t2SMLADX : T2FourReg_mac<
2735 0, 0b010, 0b0001, (outs rGPR:$Rd),
2736 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2737 "\t$Rd, $Rn, $Rm, $Ra", []>,
2738 Requires<[IsThumb2, HasThumb2DSP]>;
2739 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2740 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2741 "\t$Rd, $Rn, $Rm, $Ra", []>,
2742 Requires<[IsThumb2, HasThumb2DSP]>;
2743 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2744 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2745 "\t$Rd, $Rn, $Rm, $Ra", []>,
2746 Requires<[IsThumb2, HasThumb2DSP]>;
2747 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2748 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64, "smlald",
2749 "\t$Ra, $Rd, $Rn, $Rm", []>,
2750 Requires<[IsThumb2, HasThumb2DSP]>;
2751 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2752 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaldx",
2753 "\t$Ra, $Rd, $Rn, $Rm", []>,
2754 Requires<[IsThumb2, HasThumb2DSP]>;
2755 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2756 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlsld",
2757 "\t$Ra, $Rd, $Rn, $Rm", []>,
2758 Requires<[IsThumb2, HasThumb2DSP]>;
2759 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2760 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2761 "\t$Ra, $Rd, $Rn, $Rm", []>,
2762 Requires<[IsThumb2, HasThumb2DSP]>;
2764 //===----------------------------------------------------------------------===//
2765 // Division Instructions.
2766 // Signed and unsigned division on v7-M
2768 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV,
2769 "sdiv", "\t$Rd, $Rn, $Rm",
2770 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
2771 Requires<[HasDivide, IsThumb2]> {
2772 let Inst{31-27} = 0b11111;
2773 let Inst{26-21} = 0b011100;
2775 let Inst{15-12} = 0b1111;
2776 let Inst{7-4} = 0b1111;
2779 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV,
2780 "udiv", "\t$Rd, $Rn, $Rm",
2781 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
2782 Requires<[HasDivide, IsThumb2]> {
2783 let Inst{31-27} = 0b11111;
2784 let Inst{26-21} = 0b011101;
2786 let Inst{15-12} = 0b1111;
2787 let Inst{7-4} = 0b1111;
2790 //===----------------------------------------------------------------------===//
2791 // Misc. Arithmetic Instructions.
2794 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2795 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2796 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2797 let Inst{31-27} = 0b11111;
2798 let Inst{26-22} = 0b01010;
2799 let Inst{21-20} = op1;
2800 let Inst{15-12} = 0b1111;
2801 let Inst{7-6} = 0b10;
2802 let Inst{5-4} = op2;
2806 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2807 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2809 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2810 "rbit", "\t$Rd, $Rm",
2811 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2813 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2814 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2816 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2817 "rev16", ".w\t$Rd, $Rm",
2818 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>;
2820 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2821 "revsh", ".w\t$Rd, $Rm",
2822 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>;
2824 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
2825 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
2826 (t2REVSH rGPR:$Rm)>;
2828 def t2PKHBT : T2ThreeReg<
2829 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_lsl_amt:$sh),
2830 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2831 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2832 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
2834 Requires<[HasT2ExtractPack, IsThumb2]> {
2835 let Inst{31-27} = 0b11101;
2836 let Inst{26-25} = 0b01;
2837 let Inst{24-20} = 0b01100;
2838 let Inst{5} = 0; // BT form
2842 let Inst{14-12} = sh{4-2};
2843 let Inst{7-6} = sh{1-0};
2846 // Alternate cases for PKHBT where identities eliminate some nodes.
2847 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2848 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2849 Requires<[HasT2ExtractPack, IsThumb2]>;
2850 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2851 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2852 Requires<[HasT2ExtractPack, IsThumb2]>;
2854 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2855 // will match the pattern below.
2856 def t2PKHTB : T2ThreeReg<
2857 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_asr_amt:$sh),
2858 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2859 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2860 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
2862 Requires<[HasT2ExtractPack, IsThumb2]> {
2863 let Inst{31-27} = 0b11101;
2864 let Inst{26-25} = 0b01;
2865 let Inst{24-20} = 0b01100;
2866 let Inst{5} = 1; // TB form
2870 let Inst{14-12} = sh{4-2};
2871 let Inst{7-6} = sh{1-0};
2874 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2875 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2876 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2877 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2878 Requires<[HasT2ExtractPack, IsThumb2]>;
2879 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2880 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2881 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
2882 Requires<[HasT2ExtractPack, IsThumb2]>;
2884 //===----------------------------------------------------------------------===//
2885 // Comparison Instructions...
2887 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2888 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2889 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2891 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm),
2892 (t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>;
2893 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, rGPR:$rhs),
2894 (t2CMPrr GPRnopc:$lhs, rGPR:$rhs)>;
2895 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg:$rhs),
2896 (t2CMPrs GPRnopc:$lhs, t2_so_reg:$rhs)>;
2898 let isCompare = 1, Defs = [CPSR] in {
2900 def t2CMNri : T2OneRegCmpImm<
2901 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iCMPi,
2902 "cmn", ".w\t$Rn, $imm",
2903 [(ARMcmn GPRnopc:$Rn, (ineg t2_so_imm:$imm))]> {
2904 let Inst{31-27} = 0b11110;
2906 let Inst{24-21} = 0b1000;
2907 let Inst{20} = 1; // The S bit.
2909 let Inst{11-8} = 0b1111; // Rd
2912 def t2CMNzrr : T2TwoRegCmp<
2913 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iCMPr,
2914 "cmn", ".w\t$Rn, $Rm",
2915 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
2916 GPRnopc:$Rn, rGPR:$Rm)]> {
2917 let Inst{31-27} = 0b11101;
2918 let Inst{26-25} = 0b01;
2919 let Inst{24-21} = 0b1000;
2920 let Inst{20} = 1; // The S bit.
2921 let Inst{14-12} = 0b000; // imm3
2922 let Inst{11-8} = 0b1111; // Rd
2923 let Inst{7-6} = 0b00; // imm2
2924 let Inst{5-4} = 0b00; // type
2927 def t2CMNzrs : T2OneRegCmpShiftedReg<
2928 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), IIC_iCMPsi,
2929 "cmn", ".w\t$Rn, $ShiftedRm",
2930 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
2931 GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]> {
2932 let Inst{31-27} = 0b11101;
2933 let Inst{26-25} = 0b01;
2934 let Inst{24-21} = 0b1000;
2935 let Inst{20} = 1; // The S bit.
2936 let Inst{11-8} = 0b1111; // Rd
2940 // Assembler aliases w/o the ".w" suffix.
2941 // No alias here for 'rr' version as not all instantiations of this multiclass
2942 // want one (CMP in particular, does not).
2943 def : t2InstAlias<"cmn${p} $Rn, $imm",
2944 (t2CMNri GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>;
2945 def : t2InstAlias<"cmn${p} $Rn, $shift",
2946 (t2CMNzrs GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>;
2948 def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2949 (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2951 def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
2952 (t2CMNri GPRnopc:$src, t2_so_imm_neg:$imm)>;
2954 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2955 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2956 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2957 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2958 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2959 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2961 // Conditional moves
2962 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2963 // a two-value operand where a dag node expects two operands. :(
2964 let neverHasSideEffects = 1 in {
2966 let isCommutable = 1, isSelect = 1 in
2967 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
2968 (ins rGPR:$false, rGPR:$Rm, pred:$p),
2970 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2971 RegConstraint<"$false = $Rd">;
2973 let isMoveImm = 1 in
2974 def t2MOVCCi : t2PseudoInst<(outs rGPR:$Rd),
2975 (ins rGPR:$false, t2_so_imm:$imm, pred:$p),
2977 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2978 RegConstraint<"$false = $Rd">;
2980 // FIXME: Pseudo-ize these. For now, just mark codegen only.
2981 let isCodeGenOnly = 1 in {
2982 let isMoveImm = 1 in
2983 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, imm0_65535_expr:$imm),
2985 "movw", "\t$Rd, $imm", []>,
2986 RegConstraint<"$false = $Rd"> {
2987 let Inst{31-27} = 0b11110;
2989 let Inst{24-21} = 0b0010;
2990 let Inst{20} = 0; // The S bit.
2996 let Inst{11-8} = Rd;
2997 let Inst{19-16} = imm{15-12};
2998 let Inst{26} = imm{11};
2999 let Inst{14-12} = imm{10-8};
3000 let Inst{7-0} = imm{7-0};
3003 let isMoveImm = 1 in
3004 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
3005 (ins rGPR:$false, i32imm:$src, pred:$p),
3006 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
3008 let isMoveImm = 1 in
3009 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
3010 IIC_iCMOVi, "mvn", "\t$Rd, $imm",
3011 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
3012 imm:$cc, CCR:$ccr))*/]>,
3013 RegConstraint<"$false = $Rd"> {
3014 let Inst{31-27} = 0b11110;
3016 let Inst{24-21} = 0b0011;
3017 let Inst{20} = 0; // The S bit.
3018 let Inst{19-16} = 0b1111; // Rn
3022 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
3023 string opc, string asm, list<dag> pattern>
3024 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
3025 let Inst{31-27} = 0b11101;
3026 let Inst{26-25} = 0b01;
3027 let Inst{24-21} = 0b0010;
3028 let Inst{20} = 0; // The S bit.
3029 let Inst{19-16} = 0b1111; // Rn
3030 let Inst{5-4} = opcod; // Shift type.
3032 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
3033 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3034 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
3035 RegConstraint<"$false = $Rd">;
3036 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
3037 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3038 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
3039 RegConstraint<"$false = $Rd">;
3040 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
3041 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3042 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
3043 RegConstraint<"$false = $Rd">;
3044 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
3045 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3046 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
3047 RegConstraint<"$false = $Rd">;
3048 } // isCodeGenOnly = 1
3050 } // neverHasSideEffects
3052 //===----------------------------------------------------------------------===//
3053 // Atomic operations intrinsics
3056 // memory barriers protect the atomic sequences
3057 let hasSideEffects = 1 in {
3058 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
3059 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
3060 Requires<[IsThumb, HasDB]> {
3062 let Inst{31-4} = 0xf3bf8f5;
3063 let Inst{3-0} = opt;
3067 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
3068 "dsb", "\t$opt", []>,
3069 Requires<[IsThumb, HasDB]> {
3071 let Inst{31-4} = 0xf3bf8f4;
3072 let Inst{3-0} = opt;
3075 def t2ISB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
3077 []>, Requires<[IsThumb, HasDB]> {
3079 let Inst{31-4} = 0xf3bf8f6;
3080 let Inst{3-0} = opt;
3083 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
3084 InstrItinClass itin, string opc, string asm, string cstr,
3085 list<dag> pattern, bits<4> rt2 = 0b1111>
3086 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3087 let Inst{31-27} = 0b11101;
3088 let Inst{26-20} = 0b0001101;
3089 let Inst{11-8} = rt2;
3090 let Inst{7-6} = 0b01;
3091 let Inst{5-4} = opcod;
3092 let Inst{3-0} = 0b1111;
3096 let Inst{19-16} = addr;
3097 let Inst{15-12} = Rt;
3099 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
3100 InstrItinClass itin, string opc, string asm, string cstr,
3101 list<dag> pattern, bits<4> rt2 = 0b1111>
3102 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3103 let Inst{31-27} = 0b11101;
3104 let Inst{26-20} = 0b0001100;
3105 let Inst{11-8} = rt2;
3106 let Inst{7-6} = 0b01;
3107 let Inst{5-4} = opcod;
3113 let Inst{19-16} = addr;
3114 let Inst{15-12} = Rt;
3117 let mayLoad = 1 in {
3118 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3119 AddrModeNone, 4, NoItinerary,
3120 "ldrexb", "\t$Rt, $addr", "", []>;
3121 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3122 AddrModeNone, 4, NoItinerary,
3123 "ldrexh", "\t$Rt, $addr", "", []>;
3124 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_imm0_1020s4:$addr),
3125 AddrModeNone, 4, NoItinerary,
3126 "ldrex", "\t$Rt, $addr", "", []> {
3129 let Inst{31-27} = 0b11101;
3130 let Inst{26-20} = 0b0000101;
3131 let Inst{19-16} = addr{11-8};
3132 let Inst{15-12} = Rt;
3133 let Inst{11-8} = 0b1111;
3134 let Inst{7-0} = addr{7-0};
3136 let hasExtraDefRegAllocReq = 1 in
3137 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
3138 (ins addr_offset_none:$addr),
3139 AddrModeNone, 4, NoItinerary,
3140 "ldrexd", "\t$Rt, $Rt2, $addr", "",
3143 let Inst{11-8} = Rt2;
3147 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
3148 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
3149 (ins rGPR:$Rt, addr_offset_none:$addr),
3150 AddrModeNone, 4, NoItinerary,
3151 "strexb", "\t$Rd, $Rt, $addr", "", []>;
3152 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
3153 (ins rGPR:$Rt, addr_offset_none:$addr),
3154 AddrModeNone, 4, NoItinerary,
3155 "strexh", "\t$Rd, $Rt, $addr", "", []>;
3156 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt,
3157 t2addrmode_imm0_1020s4:$addr),
3158 AddrModeNone, 4, NoItinerary,
3159 "strex", "\t$Rd, $Rt, $addr", "",
3164 let Inst{31-27} = 0b11101;
3165 let Inst{26-20} = 0b0000100;
3166 let Inst{19-16} = addr{11-8};
3167 let Inst{15-12} = Rt;
3168 let Inst{11-8} = Rd;
3169 let Inst{7-0} = addr{7-0};
3171 let hasExtraSrcRegAllocReq = 1 in
3172 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
3173 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr),
3174 AddrModeNone, 4, NoItinerary,
3175 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
3178 let Inst{11-8} = Rt2;
3182 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", []>,
3183 Requires<[IsThumb2, HasV7]> {
3184 let Inst{31-16} = 0xf3bf;
3185 let Inst{15-14} = 0b10;
3188 let Inst{11-8} = 0b1111;
3189 let Inst{7-4} = 0b0010;
3190 let Inst{3-0} = 0b1111;
3193 //===----------------------------------------------------------------------===//
3194 // SJLJ Exception handling intrinsics
3195 // eh_sjlj_setjmp() is an instruction sequence to store the return
3196 // address and save #0 in R0 for the non-longjmp case.
3197 // Since by its nature we may be coming from some other function to get
3198 // here, and we're using the stack frame for the containing function to
3199 // save/restore registers, we can't keep anything live in regs across
3200 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
3201 // when we get here from a longjmp(). We force everything out of registers
3202 // except for our own input by listing the relevant registers in Defs. By
3203 // doing so, we also cause the prologue/epilogue code to actively preserve
3204 // all of the callee-saved resgisters, which is exactly what we want.
3205 // $val is a scratch register for our use.
3207 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
3208 Q0, Q1, Q2, Q3, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15],
3209 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3210 usesCustomInserter = 1 in {
3211 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3212 AddrModeNone, 0, NoItinerary, "", "",
3213 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3214 Requires<[IsThumb2, HasVFP2]>;
3218 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
3219 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3220 usesCustomInserter = 1 in {
3221 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3222 AddrModeNone, 0, NoItinerary, "", "",
3223 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3224 Requires<[IsThumb2, NoVFP]>;
3228 //===----------------------------------------------------------------------===//
3229 // Control-Flow Instructions
3232 // FIXME: remove when we have a way to marking a MI with these properties.
3233 // FIXME: Should pc be an implicit operand like PICADD, etc?
3234 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
3235 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
3236 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
3237 reglist:$regs, variable_ops),
3238 4, IIC_iLoad_mBr, [],
3239 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
3240 RegConstraint<"$Rn = $wb">;
3242 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
3243 let isPredicable = 1 in
3244 def t2B : T2I<(outs), (ins uncondbrtarget:$target), IIC_Br,
3246 [(br bb:$target)]> {
3247 let Inst{31-27} = 0b11110;
3248 let Inst{15-14} = 0b10;
3252 let Inst{26} = target{19};
3253 let Inst{11} = target{18};
3254 let Inst{13} = target{17};
3255 let Inst{25-16} = target{20-11};
3256 let Inst{10-0} = target{10-0};
3257 let DecoderMethod = "DecodeT2BInstruction";
3260 let isNotDuplicable = 1, isIndirectBranch = 1 in {
3261 def t2BR_JT : t2PseudoInst<(outs),
3262 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3264 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
3266 // FIXME: Add a non-pc based case that can be predicated.
3267 def t2TBB_JT : t2PseudoInst<(outs),
3268 (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>;
3270 def t2TBH_JT : t2PseudoInst<(outs),
3271 (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>;
3273 def t2TBB : T2I<(outs), (ins addrmode_tbb:$addr), IIC_Br,
3274 "tbb", "\t$addr", []> {
3277 let Inst{31-20} = 0b111010001101;
3278 let Inst{19-16} = Rn;
3279 let Inst{15-5} = 0b11110000000;
3280 let Inst{4} = 0; // B form
3283 let DecoderMethod = "DecodeThumbTableBranch";
3286 def t2TBH : T2I<(outs), (ins addrmode_tbh:$addr), IIC_Br,
3287 "tbh", "\t$addr", []> {
3290 let Inst{31-20} = 0b111010001101;
3291 let Inst{19-16} = Rn;
3292 let Inst{15-5} = 0b11110000000;
3293 let Inst{4} = 1; // H form
3296 let DecoderMethod = "DecodeThumbTableBranch";
3298 } // isNotDuplicable, isIndirectBranch
3300 } // isBranch, isTerminator, isBarrier
3302 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3303 // a two-value operand where a dag node expects ", "two operands. :(
3304 let isBranch = 1, isTerminator = 1 in
3305 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3307 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3308 let Inst{31-27} = 0b11110;
3309 let Inst{15-14} = 0b10;
3313 let Inst{25-22} = p;
3316 let Inst{26} = target{20};
3317 let Inst{11} = target{19};
3318 let Inst{13} = target{18};
3319 let Inst{21-16} = target{17-12};
3320 let Inst{10-0} = target{11-1};
3322 let DecoderMethod = "DecodeThumb2BCCInstruction";
3325 // Tail calls. The IOS version of thumb tail calls uses a t2 branch, so
3327 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3330 def tTAILJMPd: tPseudoExpand<(outs),
3331 (ins uncondbrtarget:$dst, pred:$p),
3333 (t2B uncondbrtarget:$dst, pred:$p)>,
3334 Requires<[IsThumb2, IsIOS]>;
3338 let Defs = [ITSTATE] in
3339 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3340 AddrModeNone, 2, IIC_iALUx,
3341 "it$mask\t$cc", "", []> {
3342 // 16-bit instruction.
3343 let Inst{31-16} = 0x0000;
3344 let Inst{15-8} = 0b10111111;
3349 let Inst{3-0} = mask;
3351 let DecoderMethod = "DecodeIT";
3354 // Branch and Exchange Jazelle -- for disassembly only
3356 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func", []> {
3358 let Inst{31-27} = 0b11110;
3360 let Inst{25-20} = 0b111100;
3361 let Inst{19-16} = func;
3362 let Inst{15-0} = 0b1000111100000000;
3365 // Compare and branch on zero / non-zero
3366 let isBranch = 1, isTerminator = 1 in {
3367 def tCBZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3368 "cbz\t$Rn, $target", []>,
3369 T1Misc<{0,0,?,1,?,?,?}>,
3370 Requires<[IsThumb2]> {
3374 let Inst{9} = target{5};
3375 let Inst{7-3} = target{4-0};
3379 def tCBNZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3380 "cbnz\t$Rn, $target", []>,
3381 T1Misc<{1,0,?,1,?,?,?}>,
3382 Requires<[IsThumb2]> {
3386 let Inst{9} = target{5};
3387 let Inst{7-3} = target{4-0};
3393 // Change Processor State is a system instruction.
3394 // FIXME: Since the asm parser has currently no clean way to handle optional
3395 // operands, create 3 versions of the same instruction. Once there's a clean
3396 // framework to represent optional operands, change this behavior.
3397 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3398 !strconcat("cps", asm_op), []> {
3404 let Inst{31-11} = 0b111100111010111110000;
3405 let Inst{10-9} = imod;
3407 let Inst{7-5} = iflags;
3408 let Inst{4-0} = mode;
3409 let DecoderMethod = "DecodeT2CPSInstruction";
3413 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3414 "$imod.w\t$iflags, $mode">;
3415 let mode = 0, M = 0 in
3416 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3417 "$imod.w\t$iflags">;
3418 let imod = 0, iflags = 0, M = 1 in
3419 def t2CPS1p : t2CPS<(ins imm0_31:$mode), "\t$mode">;
3421 // A6.3.4 Branches and miscellaneous control
3422 // Table A6-14 Change Processor State, and hint instructions
3423 def t2HINT : T2I<(outs), (ins imm0_4:$imm), NoItinerary, "hint", "\t$imm",[]> {
3425 let Inst{31-3} = 0b11110011101011111000000000000;
3426 let Inst{2-0} = imm;
3429 def : t2InstAlias<"hint$p.w $imm", (t2HINT imm0_4:$imm, pred:$p)>;
3430 def : t2InstAlias<"nop$p.w", (t2HINT 0, pred:$p)>;
3431 def : t2InstAlias<"yield$p.w", (t2HINT 1, pred:$p)>;
3432 def : t2InstAlias<"wfe$p.w", (t2HINT 2, pred:$p)>;
3433 def : t2InstAlias<"wfi$p.w", (t2HINT 3, pred:$p)>;
3434 def : t2InstAlias<"sev$p.w", (t2HINT 4, pred:$p)>;
3436 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
3438 let Inst{31-20} = 0b111100111010;
3439 let Inst{19-16} = 0b1111;
3440 let Inst{15-8} = 0b10000000;
3441 let Inst{7-4} = 0b1111;
3442 let Inst{3-0} = opt;
3445 // Secure Monitor Call is a system instruction.
3446 // Option = Inst{19-16}
3447 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
3448 []>, Requires<[IsThumb2, HasTrustZone]> {
3449 let Inst{31-27} = 0b11110;
3450 let Inst{26-20} = 0b1111111;
3451 let Inst{15-12} = 0b1000;
3454 let Inst{19-16} = opt;
3457 class T2SRS<bits<2> Op, bit W, dag oops, dag iops, InstrItinClass itin,
3458 string opc, string asm, list<dag> pattern>
3459 : T2I<oops, iops, itin, opc, asm, pattern> {
3461 let Inst{31-25} = 0b1110100;
3462 let Inst{24-23} = Op;
3465 let Inst{20-16} = 0b01101;
3466 let Inst{15-5} = 0b11000000000;
3467 let Inst{4-0} = mode{4-0};
3470 // Store Return State is a system instruction.
3471 def t2SRSDB_UPD : T2SRS<0b00, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3472 "srsdb", "\tsp!, $mode", []>;
3473 def t2SRSDB : T2SRS<0b00, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3474 "srsdb","\tsp, $mode", []>;
3475 def t2SRSIA_UPD : T2SRS<0b11, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3476 "srsia","\tsp!, $mode", []>;
3477 def t2SRSIA : T2SRS<0b11, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3478 "srsia","\tsp, $mode", []>;
3481 def : t2InstAlias<"srsdb${p} $mode", (t2SRSDB imm0_31:$mode, pred:$p)>;
3482 def : t2InstAlias<"srsdb${p} $mode!", (t2SRSDB_UPD imm0_31:$mode, pred:$p)>;
3484 def : t2InstAlias<"srsia${p} $mode", (t2SRSIA imm0_31:$mode, pred:$p)>;
3485 def : t2InstAlias<"srsia${p} $mode!", (t2SRSIA_UPD imm0_31:$mode, pred:$p)>;
3487 // Return From Exception is a system instruction.
3488 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3489 string opc, string asm, list<dag> pattern>
3490 : T2I<oops, iops, itin, opc, asm, pattern> {
3491 let Inst{31-20} = op31_20{11-0};
3494 let Inst{19-16} = Rn;
3495 let Inst{15-0} = 0xc000;
3498 def t2RFEDBW : T2RFE<0b111010000011,
3499 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3500 [/* For disassembly only; pattern left blank */]>;
3501 def t2RFEDB : T2RFE<0b111010000001,
3502 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3503 [/* For disassembly only; pattern left blank */]>;
3504 def t2RFEIAW : T2RFE<0b111010011011,
3505 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3506 [/* For disassembly only; pattern left blank */]>;
3507 def t2RFEIA : T2RFE<0b111010011001,
3508 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3509 [/* For disassembly only; pattern left blank */]>;
3511 //===----------------------------------------------------------------------===//
3512 // Non-Instruction Patterns
3515 // 32-bit immediate using movw + movt.
3516 // This is a single pseudo instruction to make it re-materializable.
3517 // FIXME: Remove this when we can do generalized remat.
3518 let isReMaterializable = 1, isMoveImm = 1 in
3519 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3520 [(set rGPR:$dst, (i32 imm:$src))]>,
3521 Requires<[IsThumb, HasV6T2]>;
3523 // Pseudo instruction that combines movw + movt + add pc (if pic).
3524 // It also makes it possible to rematerialize the instructions.
3525 // FIXME: Remove this when we can do generalized remat and when machine licm
3526 // can properly the instructions.
3527 let isReMaterializable = 1 in {
3528 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3530 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3531 Requires<[IsThumb2, UseMovt]>;
3533 def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3535 [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3536 Requires<[IsThumb2, UseMovt]>;
3539 // ConstantPool, GlobalAddress, and JumpTable
3540 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3541 Requires<[IsThumb2, DontUseMovt]>;
3542 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3543 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3544 Requires<[IsThumb2, UseMovt]>;
3546 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3547 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3549 // Pseudo instruction that combines ldr from constpool and add pc. This should
3550 // be expanded into two instructions late to allow if-conversion and
3552 let canFoldAsLoad = 1, isReMaterializable = 1 in
3553 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3555 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3557 Requires<[IsThumb2]>;
3559 // Pseudo isntruction that combines movs + predicated rsbmi
3560 // to implement integer ABS
3561 let usesCustomInserter = 1, Defs = [CPSR] in {
3562 def t2ABS : PseudoInst<(outs rGPR:$dst), (ins rGPR:$src),
3563 NoItinerary, []>, Requires<[IsThumb2]>;
3566 //===----------------------------------------------------------------------===//
3567 // Coprocessor load/store -- for disassembly only
3569 class T2CI<bits<4> op31_28, dag oops, dag iops, string opc, string asm>
3570 : T2I<oops, iops, NoItinerary, opc, asm, []> {
3571 let Inst{31-28} = op31_28;
3572 let Inst{27-25} = 0b110;
3575 multiclass t2LdStCop<bits<4> op31_28, bit load, bit Dbit, string asm> {
3576 def _OFFSET : T2CI<op31_28,
3577 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
3578 asm, "\t$cop, $CRd, $addr"> {
3582 let Inst{24} = 1; // P = 1
3583 let Inst{23} = addr{8};
3584 let Inst{22} = Dbit;
3585 let Inst{21} = 0; // W = 0
3586 let Inst{20} = load;
3587 let Inst{19-16} = addr{12-9};
3588 let Inst{15-12} = CRd;
3589 let Inst{11-8} = cop;
3590 let Inst{7-0} = addr{7-0};
3591 let DecoderMethod = "DecodeCopMemInstruction";
3593 def _PRE : T2CI<op31_28,
3594 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
3595 asm, "\t$cop, $CRd, $addr!"> {
3599 let Inst{24} = 1; // P = 1
3600 let Inst{23} = addr{8};
3601 let Inst{22} = Dbit;
3602 let Inst{21} = 1; // W = 1
3603 let Inst{20} = load;
3604 let Inst{19-16} = addr{12-9};
3605 let Inst{15-12} = CRd;
3606 let Inst{11-8} = cop;
3607 let Inst{7-0} = addr{7-0};
3608 let DecoderMethod = "DecodeCopMemInstruction";
3610 def _POST: T2CI<op31_28,
3611 (outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
3612 postidx_imm8s4:$offset),
3613 asm, "\t$cop, $CRd, $addr, $offset"> {
3618 let Inst{24} = 0; // P = 0
3619 let Inst{23} = offset{8};
3620 let Inst{22} = Dbit;
3621 let Inst{21} = 1; // W = 1
3622 let Inst{20} = load;
3623 let Inst{19-16} = addr;
3624 let Inst{15-12} = CRd;
3625 let Inst{11-8} = cop;
3626 let Inst{7-0} = offset{7-0};
3627 let DecoderMethod = "DecodeCopMemInstruction";
3629 def _OPTION : T2CI<op31_28, (outs),
3630 (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
3631 coproc_option_imm:$option),
3632 asm, "\t$cop, $CRd, $addr, $option"> {
3637 let Inst{24} = 0; // P = 0
3638 let Inst{23} = 1; // U = 1
3639 let Inst{22} = Dbit;
3640 let Inst{21} = 0; // W = 0
3641 let Inst{20} = load;
3642 let Inst{19-16} = addr;
3643 let Inst{15-12} = CRd;
3644 let Inst{11-8} = cop;
3645 let Inst{7-0} = option;
3646 let DecoderMethod = "DecodeCopMemInstruction";
3650 defm t2LDC : t2LdStCop<0b1110, 1, 0, "ldc">;
3651 defm t2LDCL : t2LdStCop<0b1110, 1, 1, "ldcl">;
3652 defm t2STC : t2LdStCop<0b1110, 0, 0, "stc">;
3653 defm t2STCL : t2LdStCop<0b1110, 0, 1, "stcl">;
3654 defm t2LDC2 : t2LdStCop<0b1111, 1, 0, "ldc2">;
3655 defm t2LDC2L : t2LdStCop<0b1111, 1, 1, "ldc2l">;
3656 defm t2STC2 : t2LdStCop<0b1111, 0, 0, "stc2">;
3657 defm t2STC2L : t2LdStCop<0b1111, 0, 1, "stc2l">;
3660 //===----------------------------------------------------------------------===//
3661 // Move between special register and ARM core register -- for disassembly only
3663 // Move to ARM core register from Special Register
3667 // A/R class can only move from CPSR or SPSR.
3668 def t2MRS_AR : T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, apsr",
3669 []>, Requires<[IsThumb2,IsARClass]> {
3671 let Inst{31-12} = 0b11110011111011111000;
3672 let Inst{11-8} = Rd;
3673 let Inst{7-0} = 0b0000;
3676 def : t2InstAlias<"mrs${p} $Rd, cpsr", (t2MRS_AR GPR:$Rd, pred:$p)>;
3678 def t2MRSsys_AR: T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3679 []>, Requires<[IsThumb2,IsARClass]> {
3681 let Inst{31-12} = 0b11110011111111111000;
3682 let Inst{11-8} = Rd;
3683 let Inst{7-0} = 0b0000;
3688 // This MRS has a mask field in bits 7-0 and can take more values than
3689 // the A/R class (a full msr_mask).
3690 def t2MRS_M : T2I<(outs rGPR:$Rd), (ins msr_mask:$mask), NoItinerary,
3691 "mrs", "\t$Rd, $mask", []>,
3692 Requires<[IsThumb,IsMClass]> {
3695 let Inst{31-12} = 0b11110011111011111000;
3696 let Inst{11-8} = Rd;
3697 let Inst{19-16} = 0b1111;
3698 let Inst{7-0} = mask;
3702 // Move from ARM core register to Special Register
3706 // No need to have both system and application versions, the encodings are the
3707 // same and the assembly parser has no way to distinguish between them. The mask
3708 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3709 // the mask with the fields to be accessed in the special register.
3710 def t2MSR_AR : T2I<(outs), (ins msr_mask:$mask, rGPR:$Rn),
3711 NoItinerary, "msr", "\t$mask, $Rn", []>,
3712 Requires<[IsThumb2,IsARClass]> {
3715 let Inst{31-21} = 0b11110011100;
3716 let Inst{20} = mask{4}; // R Bit
3717 let Inst{19-16} = Rn;
3718 let Inst{15-12} = 0b1000;
3719 let Inst{11-8} = mask{3-0};
3725 // Move from ARM core register to Special Register
3726 def t2MSR_M : T2I<(outs), (ins msr_mask:$SYSm, rGPR:$Rn),
3727 NoItinerary, "msr", "\t$SYSm, $Rn", []>,
3728 Requires<[IsThumb,IsMClass]> {
3731 let Inst{31-21} = 0b11110011100;
3733 let Inst{19-16} = Rn;
3734 let Inst{15-12} = 0b1000;
3735 let Inst{11-0} = SYSm;
3739 //===----------------------------------------------------------------------===//
3740 // Move between coprocessor and ARM core register
3743 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
3745 : T2Cop<Op, oops, iops,
3746 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3748 let Inst{27-24} = 0b1110;
3749 let Inst{20} = direction;
3759 let Inst{15-12} = Rt;
3760 let Inst{11-8} = cop;
3761 let Inst{23-21} = opc1;
3762 let Inst{7-5} = opc2;
3763 let Inst{3-0} = CRm;
3764 let Inst{19-16} = CRn;
3767 class t2MovRRCopro<bits<4> Op, string opc, bit direction,
3768 list<dag> pattern = []>
3770 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3771 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
3772 let Inst{27-24} = 0b1100;
3773 let Inst{23-21} = 0b010;
3774 let Inst{20} = direction;
3782 let Inst{15-12} = Rt;
3783 let Inst{19-16} = Rt2;
3784 let Inst{11-8} = cop;
3785 let Inst{7-4} = opc1;
3786 let Inst{3-0} = CRm;
3789 /* from ARM core register to coprocessor */
3790 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
3792 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3793 c_imm:$CRm, imm0_7:$opc2),
3794 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3795 imm:$CRm, imm:$opc2)]>;
3796 def : t2InstAlias<"mcr $cop, $opc1, $Rt, $CRn, $CRm",
3797 (t2MCR p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3799 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
3800 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3801 c_imm:$CRm, imm0_7:$opc2),
3802 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3803 imm:$CRm, imm:$opc2)]>;
3804 def : t2InstAlias<"mcr2 $cop, $opc1, $Rt, $CRn, $CRm",
3805 (t2MCR2 p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3808 /* from coprocessor to ARM core register */
3809 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
3810 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3811 c_imm:$CRm, imm0_7:$opc2), []>;
3812 def : t2InstAlias<"mrc $cop, $opc1, $Rt, $CRn, $CRm",
3813 (t2MRC GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3816 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
3817 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3818 c_imm:$CRm, imm0_7:$opc2), []>;
3819 def : t2InstAlias<"mrc2 $cop, $opc1, $Rt, $CRn, $CRm",
3820 (t2MRC2 GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3823 def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3824 (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3826 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3827 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3830 /* from ARM core register to coprocessor */
3831 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0,
3832 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
3834 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0,
3835 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
3836 GPR:$Rt2, imm:$CRm)]>;
3837 /* from coprocessor to ARM core register */
3838 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>;
3840 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1>;
3842 //===----------------------------------------------------------------------===//
3843 // Other Coprocessor Instructions.
3846 def tCDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3847 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3848 "cdp\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3849 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3850 imm:$CRm, imm:$opc2)]> {
3851 let Inst{27-24} = 0b1110;
3860 let Inst{3-0} = CRm;
3862 let Inst{7-5} = opc2;
3863 let Inst{11-8} = cop;
3864 let Inst{15-12} = CRd;
3865 let Inst{19-16} = CRn;
3866 let Inst{23-20} = opc1;
3869 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3870 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3871 "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3872 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3873 imm:$CRm, imm:$opc2)]> {
3874 let Inst{27-24} = 0b1110;
3883 let Inst{3-0} = CRm;
3885 let Inst{7-5} = opc2;
3886 let Inst{11-8} = cop;
3887 let Inst{15-12} = CRd;
3888 let Inst{19-16} = CRn;
3889 let Inst{23-20} = opc1;
3894 //===----------------------------------------------------------------------===//
3895 // Non-Instruction Patterns
3898 // SXT/UXT with no rotate
3899 let AddedComplexity = 16 in {
3900 def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>,
3901 Requires<[IsThumb2]>;
3902 def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>,
3903 Requires<[IsThumb2]>;
3904 def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>,
3905 Requires<[HasT2ExtractPack, IsThumb2]>;
3906 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)),
3907 (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3908 Requires<[HasT2ExtractPack, IsThumb2]>;
3909 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)),
3910 (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3911 Requires<[HasT2ExtractPack, IsThumb2]>;
3914 def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>,
3915 Requires<[IsThumb2]>;
3916 def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>,
3917 Requires<[IsThumb2]>;
3918 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)),
3919 (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3920 Requires<[HasT2ExtractPack, IsThumb2]>;
3921 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)),
3922 (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3923 Requires<[HasT2ExtractPack, IsThumb2]>;
3925 // Atomic load/store patterns
3926 def : T2Pat<(atomic_load_8 t2addrmode_imm12:$addr),
3927 (t2LDRBi12 t2addrmode_imm12:$addr)>;
3928 def : T2Pat<(atomic_load_8 t2addrmode_negimm8:$addr),
3929 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
3930 def : T2Pat<(atomic_load_8 t2addrmode_so_reg:$addr),
3931 (t2LDRBs t2addrmode_so_reg:$addr)>;
3932 def : T2Pat<(atomic_load_16 t2addrmode_imm12:$addr),
3933 (t2LDRHi12 t2addrmode_imm12:$addr)>;
3934 def : T2Pat<(atomic_load_16 t2addrmode_negimm8:$addr),
3935 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
3936 def : T2Pat<(atomic_load_16 t2addrmode_so_reg:$addr),
3937 (t2LDRHs t2addrmode_so_reg:$addr)>;
3938 def : T2Pat<(atomic_load_32 t2addrmode_imm12:$addr),
3939 (t2LDRi12 t2addrmode_imm12:$addr)>;
3940 def : T2Pat<(atomic_load_32 t2addrmode_negimm8:$addr),
3941 (t2LDRi8 t2addrmode_negimm8:$addr)>;
3942 def : T2Pat<(atomic_load_32 t2addrmode_so_reg:$addr),
3943 (t2LDRs t2addrmode_so_reg:$addr)>;
3944 def : T2Pat<(atomic_store_8 t2addrmode_imm12:$addr, GPR:$val),
3945 (t2STRBi12 GPR:$val, t2addrmode_imm12:$addr)>;
3946 def : T2Pat<(atomic_store_8 t2addrmode_negimm8:$addr, GPR:$val),
3947 (t2STRBi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3948 def : T2Pat<(atomic_store_8 t2addrmode_so_reg:$addr, GPR:$val),
3949 (t2STRBs GPR:$val, t2addrmode_so_reg:$addr)>;
3950 def : T2Pat<(atomic_store_16 t2addrmode_imm12:$addr, GPR:$val),
3951 (t2STRHi12 GPR:$val, t2addrmode_imm12:$addr)>;
3952 def : T2Pat<(atomic_store_16 t2addrmode_negimm8:$addr, GPR:$val),
3953 (t2STRHi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3954 def : T2Pat<(atomic_store_16 t2addrmode_so_reg:$addr, GPR:$val),
3955 (t2STRHs GPR:$val, t2addrmode_so_reg:$addr)>;
3956 def : T2Pat<(atomic_store_32 t2addrmode_imm12:$addr, GPR:$val),
3957 (t2STRi12 GPR:$val, t2addrmode_imm12:$addr)>;
3958 def : T2Pat<(atomic_store_32 t2addrmode_negimm8:$addr, GPR:$val),
3959 (t2STRi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3960 def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val),
3961 (t2STRs GPR:$val, t2addrmode_so_reg:$addr)>;
3964 //===----------------------------------------------------------------------===//
3965 // Assembler aliases
3968 // Aliases for ADC without the ".w" optional width specifier.
3969 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm",
3970 (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3971 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm",
3972 (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3973 pred:$p, cc_out:$s)>;
3975 // Aliases for SBC without the ".w" optional width specifier.
3976 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm",
3977 (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3978 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
3979 (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3980 pred:$p, cc_out:$s)>;
3982 // Aliases for ADD without the ".w" optional width specifier.
3983 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
3984 (t2ADDri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3985 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
3986 (t2ADDri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
3987 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
3988 (t2ADDrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3989 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
3990 (t2ADDrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
3991 pred:$p, cc_out:$s)>;
3992 // ... and with the destination and source register combined.
3993 def : t2InstAlias<"add${s}${p} $Rdn, $imm",
3994 (t2ADDri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3995 def : t2InstAlias<"add${p} $Rdn, $imm",
3996 (t2ADDri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
3997 def : t2InstAlias<"add${s}${p} $Rdn, $Rm",
3998 (t2ADDrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3999 def : t2InstAlias<"add${s}${p} $Rdn, $ShiftedRm",
4000 (t2ADDrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
4001 pred:$p, cc_out:$s)>;
4003 // add w/ negative immediates is just a sub.
4004 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4005 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
4007 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
4008 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4009 def : t2InstAlias<"add${s}${p} $Rdn, $imm",
4010 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4012 def : t2InstAlias<"add${p} $Rdn, $imm",
4013 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4015 def : t2InstAlias<"add${s}${p}.w $Rd, $Rn, $imm",
4016 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
4018 def : t2InstAlias<"addw${p} $Rd, $Rn, $imm",
4019 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4020 def : t2InstAlias<"add${s}${p}.w $Rdn, $imm",
4021 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4023 def : t2InstAlias<"addw${p} $Rdn, $imm",
4024 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4027 // Aliases for SUB without the ".w" optional width specifier.
4028 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm",
4029 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4030 def : t2InstAlias<"sub${p} $Rd, $Rn, $imm",
4031 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
4032 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $Rm",
4033 (t2SUBrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4034 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $ShiftedRm",
4035 (t2SUBrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
4036 pred:$p, cc_out:$s)>;
4037 // ... and with the destination and source register combined.
4038 def : t2InstAlias<"sub${s}${p} $Rdn, $imm",
4039 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4040 def : t2InstAlias<"sub${p} $Rdn, $imm",
4041 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
4042 def : t2InstAlias<"sub${s}${p}.w $Rdn, $Rm",
4043 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4044 def : t2InstAlias<"sub${s}${p} $Rdn, $Rm",
4045 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4046 def : t2InstAlias<"sub${s}${p} $Rdn, $ShiftedRm",
4047 (t2SUBrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
4048 pred:$p, cc_out:$s)>;
4050 // Alias for compares without the ".w" optional width specifier.
4051 def : t2InstAlias<"cmn${p} $Rn, $Rm",
4052 (t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4053 def : t2InstAlias<"teq${p} $Rn, $Rm",
4054 (t2TEQrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4055 def : t2InstAlias<"tst${p} $Rn, $Rm",
4056 (t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4059 def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb, HasDB]>;
4060 def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb, HasDB]>;
4061 def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb, HasDB]>;
4063 // Alias for LDR, LDRB, LDRH, LDRSB, and LDRSH without the ".w" optional
4065 def : t2InstAlias<"ldr${p} $Rt, $addr",
4066 (t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4067 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4068 (t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4069 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4070 (t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4071 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4072 (t2LDRSBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4073 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4074 (t2LDRSHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4076 def : t2InstAlias<"ldr${p} $Rt, $addr",
4077 (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4078 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4079 (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4080 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4081 (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4082 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4083 (t2LDRSBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4084 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4085 (t2LDRSHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4087 def : t2InstAlias<"ldr${p} $Rt, $addr",
4088 (t2LDRpci GPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4089 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4090 (t2LDRBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4091 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4092 (t2LDRHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4093 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4094 (t2LDRSBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4095 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4096 (t2LDRSHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4098 // Alias for MVN with(out) the ".w" optional width specifier.
4099 def : t2InstAlias<"mvn${s}${p}.w $Rd, $imm",
4100 (t2MVNi rGPR:$Rd, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4101 def : t2InstAlias<"mvn${s}${p} $Rd, $Rm",
4102 (t2MVNr rGPR:$Rd, rGPR:$Rm, pred:$p, cc_out:$s)>;
4103 def : t2InstAlias<"mvn${s}${p} $Rd, $ShiftedRm",
4104 (t2MVNs rGPR:$Rd, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>;
4106 // PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT when the
4107 // shift amount is zero (i.e., unspecified).
4108 def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
4109 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
4110 Requires<[HasT2ExtractPack, IsThumb2]>;
4111 def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
4112 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
4113 Requires<[HasT2ExtractPack, IsThumb2]>;
4115 // PUSH/POP aliases for STM/LDM
4116 def : t2InstAlias<"push${p}.w $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
4117 def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
4118 def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4119 def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4121 // STMIA/STMIA_UPD aliases w/o the optional .w suffix
4122 def : t2InstAlias<"stm${p} $Rn, $regs",
4123 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4124 def : t2InstAlias<"stm${p} $Rn!, $regs",
4125 (t2STMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4127 // LDMIA/LDMIA_UPD aliases w/o the optional .w suffix
4128 def : t2InstAlias<"ldm${p} $Rn, $regs",
4129 (t2LDMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4130 def : t2InstAlias<"ldm${p} $Rn!, $regs",
4131 (t2LDMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4133 // STMDB/STMDB_UPD aliases w/ the optional .w suffix
4134 def : t2InstAlias<"stmdb${p}.w $Rn, $regs",
4135 (t2STMDB GPR:$Rn, pred:$p, reglist:$regs)>;
4136 def : t2InstAlias<"stmdb${p}.w $Rn!, $regs",
4137 (t2STMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4139 // LDMDB/LDMDB_UPD aliases w/ the optional .w suffix
4140 def : t2InstAlias<"ldmdb${p}.w $Rn, $regs",
4141 (t2LDMDB GPR:$Rn, pred:$p, reglist:$regs)>;
4142 def : t2InstAlias<"ldmdb${p}.w $Rn!, $regs",
4143 (t2LDMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4145 // Alias for REV/REV16/REVSH without the ".w" optional width specifier.
4146 def : t2InstAlias<"rev${p} $Rd, $Rm", (t2REV rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4147 def : t2InstAlias<"rev16${p} $Rd, $Rm", (t2REV16 rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4148 def : t2InstAlias<"revsh${p} $Rd, $Rm", (t2REVSH rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4151 // Alias for RSB without the ".w" optional width specifier, and with optional
4152 // implied destination register.
4153 def : t2InstAlias<"rsb${s}${p} $Rd, $Rn, $imm",
4154 (t2RSBri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4155 def : t2InstAlias<"rsb${s}${p} $Rdn, $imm",
4156 (t2RSBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4157 def : t2InstAlias<"rsb${s}${p} $Rdn, $Rm",
4158 (t2RSBrr rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4159 def : t2InstAlias<"rsb${s}${p} $Rdn, $ShiftedRm",
4160 (t2RSBrs rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$ShiftedRm, pred:$p,
4163 // SSAT/USAT optional shift operand.
4164 def : t2InstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
4165 (t2SSAT rGPR:$Rd, imm1_32:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
4166 def : t2InstAlias<"usat${p} $Rd, $sat_imm, $Rn",
4167 (t2USAT rGPR:$Rd, imm0_31:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
4169 // STM w/o the .w suffix.
4170 def : t2InstAlias<"stm${p} $Rn, $regs",
4171 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4173 // Alias for STR, STRB, and STRH without the ".w" optional
4175 def : t2InstAlias<"str${p} $Rt, $addr",
4176 (t2STRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4177 def : t2InstAlias<"strb${p} $Rt, $addr",
4178 (t2STRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4179 def : t2InstAlias<"strh${p} $Rt, $addr",
4180 (t2STRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4182 def : t2InstAlias<"str${p} $Rt, $addr",
4183 (t2STRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4184 def : t2InstAlias<"strb${p} $Rt, $addr",
4185 (t2STRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4186 def : t2InstAlias<"strh${p} $Rt, $addr",
4187 (t2STRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4189 // Extend instruction optional rotate operand.
4190 def : t2InstAlias<"sxtab${p} $Rd, $Rn, $Rm",
4191 (t2SXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4192 def : t2InstAlias<"sxtah${p} $Rd, $Rn, $Rm",
4193 (t2SXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4194 def : t2InstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
4195 (t2SXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4197 def : t2InstAlias<"sxtb${p} $Rd, $Rm",
4198 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4199 def : t2InstAlias<"sxtb16${p} $Rd, $Rm",
4200 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4201 def : t2InstAlias<"sxth${p} $Rd, $Rm",
4202 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4203 def : t2InstAlias<"sxtb${p}.w $Rd, $Rm",
4204 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4205 def : t2InstAlias<"sxth${p}.w $Rd, $Rm",
4206 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4208 def : t2InstAlias<"uxtab${p} $Rd, $Rn, $Rm",
4209 (t2UXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4210 def : t2InstAlias<"uxtah${p} $Rd, $Rn, $Rm",
4211 (t2UXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4212 def : t2InstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
4213 (t2UXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4214 def : t2InstAlias<"uxtb${p} $Rd, $Rm",
4215 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4216 def : t2InstAlias<"uxtb16${p} $Rd, $Rm",
4217 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4218 def : t2InstAlias<"uxth${p} $Rd, $Rm",
4219 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4221 def : t2InstAlias<"uxtb${p}.w $Rd, $Rm",
4222 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4223 def : t2InstAlias<"uxth${p}.w $Rd, $Rm",
4224 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4226 // Extend instruction w/o the ".w" optional width specifier.
4227 def : t2InstAlias<"uxtb${p} $Rd, $Rm$rot",
4228 (t2UXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4229 def : t2InstAlias<"uxtb16${p} $Rd, $Rm$rot",
4230 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4231 def : t2InstAlias<"uxth${p} $Rd, $Rm$rot",
4232 (t2UXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4234 def : t2InstAlias<"sxtb${p} $Rd, $Rm$rot",
4235 (t2SXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4236 def : t2InstAlias<"sxtb16${p} $Rd, $Rm$rot",
4237 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4238 def : t2InstAlias<"sxth${p} $Rd, $Rm$rot",
4239 (t2SXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4242 // "mov Rd, t2_so_imm_not" can be handled via "mvn" in assembly, just like
4244 def : t2InstAlias<"mov${p} $Rd, $imm",
4245 (t2MVNi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
4246 def : t2InstAlias<"mvn${p} $Rd, $imm",
4247 (t2MOVi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
4248 // Same for AND <--> BIC
4249 def : t2InstAlias<"bic${s}${p} $Rd, $Rn, $imm",
4250 (t2ANDri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
4251 pred:$p, cc_out:$s)>;
4252 def : t2InstAlias<"bic${s}${p} $Rdn, $imm",
4253 (t2ANDri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
4254 pred:$p, cc_out:$s)>;
4255 def : t2InstAlias<"and${s}${p} $Rd, $Rn, $imm",
4256 (t2BICri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
4257 pred:$p, cc_out:$s)>;
4258 def : t2InstAlias<"and${s}${p} $Rdn, $imm",
4259 (t2BICri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
4260 pred:$p, cc_out:$s)>;
4261 // Likewise, "add Rd, t2_so_imm_neg" -> sub
4262 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4263 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm,
4264 pred:$p, cc_out:$s)>;
4265 def : t2InstAlias<"add${s}${p} $Rd, $imm",
4266 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rd, t2_so_imm_neg:$imm,
4267 pred:$p, cc_out:$s)>;
4268 // Same for CMP <--> CMN via t2_so_imm_neg
4269 def : t2InstAlias<"cmp${p} $Rd, $imm",
4270 (t2CMNri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
4271 def : t2InstAlias<"cmn${p} $Rd, $imm",
4272 (t2CMPri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
4275 // Wide 'mul' encoding can be specified with only two operands.
4276 def : t2InstAlias<"mul${p} $Rn, $Rm",
4277 (t2MUL rGPR:$Rn, rGPR:$Rm, rGPR:$Rn, pred:$p)>;
4279 // "neg" is and alias for "rsb rd, rn, #0"
4280 def : t2InstAlias<"neg${s}${p} $Rd, $Rm",
4281 (t2RSBri rGPR:$Rd, rGPR:$Rm, 0, pred:$p, cc_out:$s)>;
4283 // MOV so_reg assembler pseudos. InstAlias isn't expressive enough for
4284 // these, unfortunately.
4285 def t2MOVsi: t2AsmPseudo<"mov${p} $Rd, $shift",
4286 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
4287 def t2MOVSsi: t2AsmPseudo<"movs${p} $Rd, $shift",
4288 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
4290 def t2MOVsr: t2AsmPseudo<"mov${p} $Rd, $shift",
4291 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
4292 def t2MOVSsr: t2AsmPseudo<"movs${p} $Rd, $shift",
4293 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
4295 // ADR w/o the .w suffix
4296 def : t2InstAlias<"adr${p} $Rd, $addr",
4297 (t2ADR rGPR:$Rd, t2adrlabel:$addr, pred:$p)>;
4299 // LDR(literal) w/ alternate [pc, #imm] syntax.
4300 def t2LDRpcrel : t2AsmPseudo<"ldr${p} $Rt, $addr",
4301 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4302 def t2LDRBpcrel : t2AsmPseudo<"ldrb${p} $Rt, $addr",
4303 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4304 def t2LDRHpcrel : t2AsmPseudo<"ldrh${p} $Rt, $addr",
4305 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4306 def t2LDRSBpcrel : t2AsmPseudo<"ldrsb${p} $Rt, $addr",
4307 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4308 def t2LDRSHpcrel : t2AsmPseudo<"ldrsh${p} $Rt, $addr",
4309 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4310 // Version w/ the .w suffix.
4311 def : t2InstAlias<"ldr${p}.w $Rt, $addr",
4312 (t2LDRpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4313 def : t2InstAlias<"ldrb${p}.w $Rt, $addr",
4314 (t2LDRBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4315 def : t2InstAlias<"ldrh${p}.w $Rt, $addr",
4316 (t2LDRHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4317 def : t2InstAlias<"ldrsb${p}.w $Rt, $addr",
4318 (t2LDRSBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4319 def : t2InstAlias<"ldrsh${p}.w $Rt, $addr",
4320 (t2LDRSHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4322 def : t2InstAlias<"add${p} $Rd, pc, $imm",
4323 (t2ADR rGPR:$Rd, imm0_4095:$imm, pred:$p)>;