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 imm0_255_neg : PatLeaf<(i32 imm), [{
134 return (uint32_t)(-N->getZExtValue()) < 255;
137 def imm0_255_not : PatLeaf<(i32 imm), [{
138 return (uint32_t)(~N->getZExtValue()) < 255;
141 def lo5AllOne : PatLeaf<(i32 imm), [{
142 // Returns true if all low 5-bits are 1.
143 return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL;
146 // Define Thumb2 specific addressing modes.
148 // t2addrmode_imm12 := reg + imm12
149 def t2addrmode_imm12_asmoperand : AsmOperandClass {let Name="MemUImm12Offset";}
150 def t2addrmode_imm12 : Operand<i32>,
151 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
152 let PrintMethod = "printAddrModeImm12Operand";
153 let EncoderMethod = "getAddrModeImm12OpValue";
154 let DecoderMethod = "DecodeT2AddrModeImm12";
155 let ParserMatchClass = t2addrmode_imm12_asmoperand;
156 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
159 // t2ldrlabel := imm12
160 def t2ldrlabel : Operand<i32> {
161 let EncoderMethod = "getAddrModeImm12OpValue";
162 let PrintMethod = "printT2LdrLabelOperand";
165 def t2ldr_pcrel_imm12_asmoperand : AsmOperandClass {let Name = "MemPCRelImm12";}
166 def t2ldr_pcrel_imm12 : Operand<i32> {
167 let ParserMatchClass = t2ldr_pcrel_imm12_asmoperand;
168 // used for assembler pseudo instruction and maps to t2ldrlabel, so
169 // doesn't need encoder or print methods of its own.
172 // ADR instruction labels.
173 def t2adrlabel : Operand<i32> {
174 let EncoderMethod = "getT2AdrLabelOpValue";
175 let PrintMethod = "printAdrLabelOperand";
179 // t2addrmode_posimm8 := reg + imm8
180 def MemPosImm8OffsetAsmOperand : AsmOperandClass {let Name="MemPosImm8Offset";}
181 def t2addrmode_posimm8 : Operand<i32> {
182 let PrintMethod = "printT2AddrModeImm8Operand";
183 let EncoderMethod = "getT2AddrModeImm8OpValue";
184 let DecoderMethod = "DecodeT2AddrModeImm8";
185 let ParserMatchClass = MemPosImm8OffsetAsmOperand;
186 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
189 // t2addrmode_negimm8 := reg - imm8
190 def MemNegImm8OffsetAsmOperand : AsmOperandClass {let Name="MemNegImm8Offset";}
191 def t2addrmode_negimm8 : Operand<i32>,
192 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
193 let PrintMethod = "printT2AddrModeImm8Operand";
194 let EncoderMethod = "getT2AddrModeImm8OpValue";
195 let DecoderMethod = "DecodeT2AddrModeImm8";
196 let ParserMatchClass = MemNegImm8OffsetAsmOperand;
197 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
200 // t2addrmode_imm8 := reg +/- imm8
201 def MemImm8OffsetAsmOperand : AsmOperandClass { let Name = "MemImm8Offset"; }
202 def t2addrmode_imm8 : Operand<i32>,
203 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
204 let PrintMethod = "printT2AddrModeImm8Operand";
205 let EncoderMethod = "getT2AddrModeImm8OpValue";
206 let DecoderMethod = "DecodeT2AddrModeImm8";
207 let ParserMatchClass = MemImm8OffsetAsmOperand;
208 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
211 def t2am_imm8_offset : Operand<i32>,
212 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
213 [], [SDNPWantRoot]> {
214 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
215 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
216 let DecoderMethod = "DecodeT2Imm8";
219 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
220 def MemImm8s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm8s4Offset";}
221 def t2addrmode_imm8s4 : Operand<i32> {
222 let PrintMethod = "printT2AddrModeImm8s4Operand";
223 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
224 let DecoderMethod = "DecodeT2AddrModeImm8s4";
225 let ParserMatchClass = MemImm8s4OffsetAsmOperand;
226 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
229 def t2am_imm8s4_offset_asmoperand : AsmOperandClass { let Name = "Imm8s4"; }
230 def t2am_imm8s4_offset : Operand<i32> {
231 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
232 let EncoderMethod = "getT2Imm8s4OpValue";
233 let DecoderMethod = "DecodeT2Imm8S4";
236 // t2addrmode_imm0_1020s4 := reg + (imm8 << 2)
237 def MemImm0_1020s4OffsetAsmOperand : AsmOperandClass {
238 let Name = "MemImm0_1020s4Offset";
240 def t2addrmode_imm0_1020s4 : Operand<i32> {
241 let PrintMethod = "printT2AddrModeImm0_1020s4Operand";
242 let EncoderMethod = "getT2AddrModeImm0_1020s4OpValue";
243 let DecoderMethod = "DecodeT2AddrModeImm0_1020s4";
244 let ParserMatchClass = MemImm0_1020s4OffsetAsmOperand;
245 let MIOperandInfo = (ops GPRnopc:$base, i32imm:$offsimm);
248 // t2addrmode_so_reg := reg + (reg << imm2)
249 def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";}
250 def t2addrmode_so_reg : Operand<i32>,
251 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
252 let PrintMethod = "printT2AddrModeSoRegOperand";
253 let EncoderMethod = "getT2AddrModeSORegOpValue";
254 let DecoderMethod = "DecodeT2AddrModeSOReg";
255 let ParserMatchClass = t2addrmode_so_reg_asmoperand;
256 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
259 // Addresses for the TBB/TBH instructions.
260 def addrmode_tbb_asmoperand : AsmOperandClass { let Name = "MemTBB"; }
261 def addrmode_tbb : Operand<i32> {
262 let PrintMethod = "printAddrModeTBB";
263 let ParserMatchClass = addrmode_tbb_asmoperand;
264 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
266 def addrmode_tbh_asmoperand : AsmOperandClass { let Name = "MemTBH"; }
267 def addrmode_tbh : Operand<i32> {
268 let PrintMethod = "printAddrModeTBH";
269 let ParserMatchClass = addrmode_tbh_asmoperand;
270 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
273 //===----------------------------------------------------------------------===//
274 // Multiclass helpers...
278 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
279 string opc, string asm, list<dag> pattern>
280 : T2I<oops, iops, itin, opc, asm, pattern> {
285 let Inst{26} = imm{11};
286 let Inst{14-12} = imm{10-8};
287 let Inst{7-0} = imm{7-0};
291 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
292 string opc, string asm, list<dag> pattern>
293 : T2sI<oops, iops, itin, opc, asm, pattern> {
299 let Inst{26} = imm{11};
300 let Inst{14-12} = imm{10-8};
301 let Inst{7-0} = imm{7-0};
304 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
305 string opc, string asm, list<dag> pattern>
306 : T2I<oops, iops, itin, opc, asm, pattern> {
310 let Inst{19-16} = Rn;
311 let Inst{26} = imm{11};
312 let Inst{14-12} = imm{10-8};
313 let Inst{7-0} = imm{7-0};
317 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
318 string opc, string asm, list<dag> pattern>
319 : T2I<oops, iops, itin, opc, asm, pattern> {
324 let Inst{3-0} = ShiftedRm{3-0};
325 let Inst{5-4} = ShiftedRm{6-5};
326 let Inst{14-12} = ShiftedRm{11-9};
327 let Inst{7-6} = ShiftedRm{8-7};
330 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
331 string opc, string asm, list<dag> pattern>
332 : T2sI<oops, iops, itin, opc, asm, pattern> {
337 let Inst{3-0} = ShiftedRm{3-0};
338 let Inst{5-4} = ShiftedRm{6-5};
339 let Inst{14-12} = ShiftedRm{11-9};
340 let Inst{7-6} = ShiftedRm{8-7};
343 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
344 string opc, string asm, list<dag> pattern>
345 : T2I<oops, iops, itin, opc, asm, pattern> {
349 let Inst{19-16} = Rn;
350 let Inst{3-0} = ShiftedRm{3-0};
351 let Inst{5-4} = ShiftedRm{6-5};
352 let Inst{14-12} = ShiftedRm{11-9};
353 let Inst{7-6} = ShiftedRm{8-7};
356 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
357 string opc, string asm, list<dag> pattern>
358 : T2I<oops, iops, itin, opc, asm, pattern> {
366 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
367 string opc, string asm, list<dag> pattern>
368 : T2sI<oops, iops, itin, opc, asm, pattern> {
376 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
377 string opc, string asm, list<dag> pattern>
378 : T2I<oops, iops, itin, opc, asm, pattern> {
382 let Inst{19-16} = Rn;
387 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
388 string opc, string asm, list<dag> pattern>
389 : T2I<oops, iops, itin, opc, asm, pattern> {
395 let Inst{19-16} = Rn;
396 let Inst{26} = imm{11};
397 let Inst{14-12} = imm{10-8};
398 let Inst{7-0} = imm{7-0};
401 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
402 string opc, string asm, list<dag> pattern>
403 : T2sI<oops, iops, itin, opc, asm, pattern> {
409 let Inst{19-16} = Rn;
410 let Inst{26} = imm{11};
411 let Inst{14-12} = imm{10-8};
412 let Inst{7-0} = imm{7-0};
415 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
416 string opc, string asm, list<dag> pattern>
417 : T2I<oops, iops, itin, opc, asm, pattern> {
424 let Inst{14-12} = imm{4-2};
425 let Inst{7-6} = imm{1-0};
428 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
429 string opc, string asm, list<dag> pattern>
430 : T2sI<oops, iops, itin, opc, asm, pattern> {
437 let Inst{14-12} = imm{4-2};
438 let Inst{7-6} = imm{1-0};
441 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
442 string opc, string asm, list<dag> pattern>
443 : T2I<oops, iops, itin, opc, asm, pattern> {
449 let Inst{19-16} = Rn;
453 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
454 string opc, string asm, list<dag> pattern>
455 : T2sI<oops, iops, itin, opc, asm, pattern> {
461 let Inst{19-16} = Rn;
465 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
466 string opc, string asm, list<dag> pattern>
467 : T2I<oops, iops, itin, opc, asm, pattern> {
473 let Inst{19-16} = Rn;
474 let Inst{3-0} = ShiftedRm{3-0};
475 let Inst{5-4} = ShiftedRm{6-5};
476 let Inst{14-12} = ShiftedRm{11-9};
477 let Inst{7-6} = ShiftedRm{8-7};
480 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
481 string opc, string asm, list<dag> pattern>
482 : T2sI<oops, iops, itin, opc, asm, pattern> {
488 let Inst{19-16} = Rn;
489 let Inst{3-0} = ShiftedRm{3-0};
490 let Inst{5-4} = ShiftedRm{6-5};
491 let Inst{14-12} = ShiftedRm{11-9};
492 let Inst{7-6} = ShiftedRm{8-7};
495 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
496 string opc, string asm, list<dag> pattern>
497 : T2I<oops, iops, itin, opc, asm, pattern> {
503 let Inst{19-16} = Rn;
504 let Inst{15-12} = Ra;
509 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
510 dag oops, dag iops, InstrItinClass itin,
511 string opc, string asm, list<dag> pattern>
512 : T2I<oops, iops, itin, opc, asm, pattern> {
518 let Inst{31-23} = 0b111110111;
519 let Inst{22-20} = opc22_20;
520 let Inst{19-16} = Rn;
521 let Inst{15-12} = RdLo;
522 let Inst{11-8} = RdHi;
523 let Inst{7-4} = opc7_4;
528 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
529 /// binary operation that produces a value. These are predicable and can be
530 /// changed to modify CPSR.
531 multiclass T2I_bin_irs<bits<4> opcod, string opc,
532 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
533 PatFrag opnode, bit Commutable = 0,
536 def ri : T2sTwoRegImm<
537 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
538 opc, "\t$Rd, $Rn, $imm",
539 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
540 let Inst{31-27} = 0b11110;
542 let Inst{24-21} = opcod;
546 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
547 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
548 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
549 let isCommutable = Commutable;
550 let Inst{31-27} = 0b11101;
551 let Inst{26-25} = 0b01;
552 let Inst{24-21} = opcod;
553 let Inst{14-12} = 0b000; // imm3
554 let Inst{7-6} = 0b00; // imm2
555 let Inst{5-4} = 0b00; // type
558 def rs : T2sTwoRegShiftedReg<
559 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
560 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
561 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
562 let Inst{31-27} = 0b11101;
563 let Inst{26-25} = 0b01;
564 let Inst{24-21} = opcod;
566 // Assembly aliases for optional destination operand when it's the same
567 // as the source operand.
568 def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
569 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn,
570 t2_so_imm:$imm, pred:$p,
572 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
573 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn,
576 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
577 (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn,
578 t2_so_reg:$shift, pred:$p,
582 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
583 // the ".w" suffix to indicate that they are wide.
584 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
585 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
586 PatFrag opnode, bit Commutable = 0> :
587 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w"> {
588 // Assembler aliases w/ the ".w" suffix.
589 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rd, $Rn, $imm"),
590 (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p,
592 // Assembler aliases w/o the ".w" suffix.
593 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
594 (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
596 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"),
597 (!cast<Instruction>(NAME#"rs") rGPR:$Rd, rGPR:$Rn, t2_so_reg:$shift,
598 pred:$p, cc_out:$s)>;
600 // and with the optional destination operand, too.
601 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rdn, $imm"),
602 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm,
603 pred:$p, cc_out:$s)>;
604 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
605 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
607 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"),
608 (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$shift,
609 pred:$p, cc_out:$s)>;
612 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
613 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
614 /// it is equivalent to the T2I_bin_irs counterpart.
615 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
617 def ri : T2sTwoRegImm<
618 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
619 opc, ".w\t$Rd, $Rn, $imm",
620 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
621 let Inst{31-27} = 0b11110;
623 let Inst{24-21} = opcod;
627 def rr : T2sThreeReg<
628 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
629 opc, "\t$Rd, $Rn, $Rm",
630 [/* For disassembly only; pattern left blank */]> {
631 let Inst{31-27} = 0b11101;
632 let Inst{26-25} = 0b01;
633 let Inst{24-21} = opcod;
634 let Inst{14-12} = 0b000; // imm3
635 let Inst{7-6} = 0b00; // imm2
636 let Inst{5-4} = 0b00; // type
639 def rs : T2sTwoRegShiftedReg<
640 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
641 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
642 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
643 let Inst{31-27} = 0b11101;
644 let Inst{26-25} = 0b01;
645 let Inst{24-21} = opcod;
649 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
650 /// instruction modifies the CPSR register.
652 /// These opcodes will be converted to the real non-S opcodes by
653 /// AdjustInstrPostInstrSelection after giving then an optional CPSR operand.
654 let hasPostISelHook = 1, Defs = [CPSR] in {
655 multiclass T2I_bin_s_irs<InstrItinClass iii, InstrItinClass iir,
656 InstrItinClass iis, PatFrag opnode,
657 bit Commutable = 0> {
659 def ri : t2PseudoInst<(outs rGPR:$Rd),
660 (ins GPRnopc:$Rn, t2_so_imm:$imm, pred:$p),
662 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
665 def rr : t2PseudoInst<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm, pred:$p),
667 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
669 let isCommutable = Commutable;
672 def rs : t2PseudoInst<(outs rGPR:$Rd),
673 (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
675 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
676 t2_so_reg:$ShiftedRm))]>;
680 /// T2I_rbin_s_is - Same as T2I_bin_s_irs, except selection DAG
681 /// operands are reversed.
682 let hasPostISelHook = 1, Defs = [CPSR] in {
683 multiclass T2I_rbin_s_is<PatFrag opnode> {
685 def ri : t2PseudoInst<(outs rGPR:$Rd),
686 (ins rGPR:$Rn, t2_so_imm:$imm, pred:$p),
688 [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm,
691 def rs : t2PseudoInst<(outs rGPR:$Rd),
692 (ins rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
694 [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm,
699 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
700 /// patterns for a binary operation that produces a value.
701 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
702 bit Commutable = 0> {
704 // The register-immediate version is re-materializable. This is useful
705 // in particular for taking the address of a local.
706 let isReMaterializable = 1 in {
707 def ri : T2sTwoRegImm<
708 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
709 opc, ".w\t$Rd, $Rn, $imm",
710 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]> {
711 let Inst{31-27} = 0b11110;
714 let Inst{23-21} = op23_21;
720 (outs GPRnopc:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
721 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
722 [(set GPRnopc:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
726 let Inst{31-27} = 0b11110;
727 let Inst{26} = imm{11};
728 let Inst{25-24} = 0b10;
729 let Inst{23-21} = op23_21;
730 let Inst{20} = 0; // The S bit.
731 let Inst{19-16} = Rn;
733 let Inst{14-12} = imm{10-8};
735 let Inst{7-0} = imm{7-0};
738 def rr : T2sThreeReg<(outs GPRnopc:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm),
739 IIC_iALUr, opc, ".w\t$Rd, $Rn, $Rm",
740 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]> {
741 let isCommutable = Commutable;
742 let Inst{31-27} = 0b11101;
743 let Inst{26-25} = 0b01;
745 let Inst{23-21} = op23_21;
746 let Inst{14-12} = 0b000; // imm3
747 let Inst{7-6} = 0b00; // imm2
748 let Inst{5-4} = 0b00; // type
751 def rs : T2sTwoRegShiftedReg<
752 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
753 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
754 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]> {
755 let Inst{31-27} = 0b11101;
756 let Inst{26-25} = 0b01;
758 let Inst{23-21} = op23_21;
761 // Predicated versions.
762 def CCri : t2PseudoExpand<(outs GPRnopc:$Rd),
763 (ins GPRnopc:$Rfalse, GPRnopc:$Rn, t2_so_imm:$imm,
764 pred:$p, cc_out:$s), 4, IIC_iALUi, [],
765 (!cast<Instruction>(NAME#ri) GPRnopc:$Rd,
766 GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>,
767 RegConstraint<"$Rfalse = $Rd">;
768 def CCri12 : t2PseudoExpand<(outs GPRnopc:$Rd),
769 (ins GPRnopc:$Rfalse, GPR:$Rn, imm0_4095:$imm,
772 (!cast<Instruction>(NAME#ri12) GPRnopc:$Rd,
773 GPR:$Rn, imm0_4095:$imm, pred:$p)>,
774 RegConstraint<"$Rfalse = $Rd">;
775 def CCrr : t2PseudoExpand<(outs GPRnopc:$Rd),
776 (ins GPRnopc:$Rfalse, GPRnopc:$Rn, rGPR:$Rm,
777 pred:$p, cc_out:$s), 4, IIC_iALUr, [],
778 (!cast<Instruction>(NAME#rr) GPRnopc:$Rd,
779 GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>,
780 RegConstraint<"$Rfalse = $Rd">;
781 def CCrs : t2PseudoExpand<(outs GPRnopc:$Rd),
782 (ins GPRnopc:$Rfalse, GPRnopc:$Rn, t2_so_reg:$Rm,
783 pred:$p, cc_out:$s), 4, IIC_iALUsi, [],
784 (!cast<Instruction>(NAME#rs) GPRnopc:$Rd,
785 GPRnopc:$Rn, t2_so_reg:$Rm, pred:$p, cc_out:$s)>,
786 RegConstraint<"$Rfalse = $Rd">;
789 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
790 /// for a binary operation that produces a value and use the carry
791 /// bit. It's not predicable.
792 let Defs = [CPSR], Uses = [CPSR] in {
793 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
794 bit Commutable = 0> {
796 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
797 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
798 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_imm:$imm, CPSR))]>,
799 Requires<[IsThumb2]> {
800 let Inst{31-27} = 0b11110;
802 let Inst{24-21} = opcod;
806 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
807 opc, ".w\t$Rd, $Rn, $Rm",
808 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, rGPR:$Rm, CPSR))]>,
809 Requires<[IsThumb2]> {
810 let isCommutable = Commutable;
811 let Inst{31-27} = 0b11101;
812 let Inst{26-25} = 0b01;
813 let Inst{24-21} = opcod;
814 let Inst{14-12} = 0b000; // imm3
815 let Inst{7-6} = 0b00; // imm2
816 let Inst{5-4} = 0b00; // type
819 def rs : T2sTwoRegShiftedReg<
820 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
821 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
822 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm, CPSR))]>,
823 Requires<[IsThumb2]> {
824 let Inst{31-27} = 0b11101;
825 let Inst{26-25} = 0b01;
826 let Inst{24-21} = opcod;
831 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
832 // rotate operation that produces a value.
833 multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, PatFrag opnode> {
835 def ri : T2sTwoRegShiftImm<
836 (outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi,
837 opc, ".w\t$Rd, $Rm, $imm",
838 [(set rGPR:$Rd, (opnode rGPR:$Rm, (i32 ty:$imm)))]> {
839 let Inst{31-27} = 0b11101;
840 let Inst{26-21} = 0b010010;
841 let Inst{19-16} = 0b1111; // Rn
842 let Inst{5-4} = opcod;
845 def rr : T2sThreeReg<
846 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
847 opc, ".w\t$Rd, $Rn, $Rm",
848 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
849 let Inst{31-27} = 0b11111;
850 let Inst{26-23} = 0b0100;
851 let Inst{22-21} = opcod;
852 let Inst{15-12} = 0b1111;
853 let Inst{7-4} = 0b0000;
856 // Optional destination register
857 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"),
858 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
860 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"),
861 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
864 // Assembler aliases w/o the ".w" suffix.
865 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"),
866 (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, ty:$imm, pred:$p,
868 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
869 (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
872 // and with the optional destination operand, too.
873 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"),
874 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
876 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
877 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
881 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
882 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
883 /// a explicit result, only implicitly set CPSR.
884 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
885 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
887 let isCompare = 1, Defs = [CPSR] in {
889 def ri : T2OneRegCmpImm<
890 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), iii,
891 opc, ".w\t$Rn, $imm",
892 [(opnode GPRnopc:$Rn, t2_so_imm:$imm)]> {
893 let Inst{31-27} = 0b11110;
895 let Inst{24-21} = opcod;
896 let Inst{20} = 1; // The S bit.
898 let Inst{11-8} = 0b1111; // Rd
901 def rr : T2TwoRegCmp<
902 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), iir,
904 [(opnode GPRnopc:$Rn, rGPR:$Rm)]> {
905 let Inst{31-27} = 0b11101;
906 let Inst{26-25} = 0b01;
907 let Inst{24-21} = opcod;
908 let Inst{20} = 1; // The S bit.
909 let Inst{14-12} = 0b000; // imm3
910 let Inst{11-8} = 0b1111; // Rd
911 let Inst{7-6} = 0b00; // imm2
912 let Inst{5-4} = 0b00; // type
915 def rs : T2OneRegCmpShiftedReg<
916 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), iis,
917 opc, ".w\t$Rn, $ShiftedRm",
918 [(opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]> {
919 let Inst{31-27} = 0b11101;
920 let Inst{26-25} = 0b01;
921 let Inst{24-21} = opcod;
922 let Inst{20} = 1; // The S bit.
923 let Inst{11-8} = 0b1111; // Rd
927 // Assembler aliases w/o the ".w" suffix.
928 // No alias here for 'rr' version as not all instantiations of this
929 // multiclass want one (CMP in particular, does not).
930 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"),
931 (!cast<Instruction>(NAME#"ri") GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>;
932 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"),
933 (!cast<Instruction>(NAME#"rs") GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>;
936 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
937 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
938 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
940 def i12 : T2Ii12<(outs target:$Rt), (ins t2addrmode_imm12:$addr), iii,
941 opc, ".w\t$Rt, $addr",
942 [(set target:$Rt, (opnode t2addrmode_imm12:$addr))]> {
945 let Inst{31-25} = 0b1111100;
946 let Inst{24} = signed;
948 let Inst{22-21} = opcod;
949 let Inst{20} = 1; // load
950 let Inst{19-16} = addr{16-13}; // Rn
951 let Inst{15-12} = Rt;
952 let Inst{11-0} = addr{11-0}; // imm
954 def i8 : T2Ii8 <(outs target:$Rt), (ins t2addrmode_negimm8:$addr), iii,
956 [(set target:$Rt, (opnode t2addrmode_negimm8:$addr))]> {
959 let Inst{31-27} = 0b11111;
960 let Inst{26-25} = 0b00;
961 let Inst{24} = signed;
963 let Inst{22-21} = opcod;
964 let Inst{20} = 1; // load
965 let Inst{19-16} = addr{12-9}; // Rn
966 let Inst{15-12} = Rt;
968 // Offset: index==TRUE, wback==FALSE
969 let Inst{10} = 1; // The P bit.
970 let Inst{9} = addr{8}; // U
971 let Inst{8} = 0; // The W bit.
972 let Inst{7-0} = addr{7-0}; // imm
974 def s : T2Iso <(outs target:$Rt), (ins t2addrmode_so_reg:$addr), iis,
975 opc, ".w\t$Rt, $addr",
976 [(set target:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
977 let Inst{31-27} = 0b11111;
978 let Inst{26-25} = 0b00;
979 let Inst{24} = signed;
981 let Inst{22-21} = opcod;
982 let Inst{20} = 1; // load
983 let Inst{11-6} = 0b000000;
986 let Inst{15-12} = Rt;
989 let Inst{19-16} = addr{9-6}; // Rn
990 let Inst{3-0} = addr{5-2}; // Rm
991 let Inst{5-4} = addr{1-0}; // imm
993 let DecoderMethod = "DecodeT2LoadShift";
996 // pci variant is very similar to i12, but supports negative offsets
998 def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
999 opc, ".w\t$Rt, $addr",
1000 [(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
1001 let isReMaterializable = 1;
1002 let Inst{31-27} = 0b11111;
1003 let Inst{26-25} = 0b00;
1004 let Inst{24} = signed;
1005 let Inst{23} = ?; // add = (U == '1')
1006 let Inst{22-21} = opcod;
1007 let Inst{20} = 1; // load
1008 let Inst{19-16} = 0b1111; // Rn
1011 let Inst{15-12} = Rt{3-0};
1012 let Inst{11-0} = addr{11-0};
1016 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
1017 multiclass T2I_st<bits<2> opcod, string opc,
1018 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
1020 def i12 : T2Ii12<(outs), (ins target:$Rt, t2addrmode_imm12:$addr), iii,
1021 opc, ".w\t$Rt, $addr",
1022 [(opnode target:$Rt, t2addrmode_imm12:$addr)]> {
1023 let Inst{31-27} = 0b11111;
1024 let Inst{26-23} = 0b0001;
1025 let Inst{22-21} = opcod;
1026 let Inst{20} = 0; // !load
1029 let Inst{15-12} = Rt;
1032 let addr{12} = 1; // add = TRUE
1033 let Inst{19-16} = addr{16-13}; // Rn
1034 let Inst{23} = addr{12}; // U
1035 let Inst{11-0} = addr{11-0}; // imm
1037 def i8 : T2Ii8 <(outs), (ins target:$Rt, t2addrmode_negimm8:$addr), iii,
1038 opc, "\t$Rt, $addr",
1039 [(opnode target:$Rt, t2addrmode_negimm8:$addr)]> {
1040 let Inst{31-27} = 0b11111;
1041 let Inst{26-23} = 0b0000;
1042 let Inst{22-21} = opcod;
1043 let Inst{20} = 0; // !load
1045 // Offset: index==TRUE, wback==FALSE
1046 let Inst{10} = 1; // The P bit.
1047 let Inst{8} = 0; // The W bit.
1050 let Inst{15-12} = Rt;
1053 let Inst{19-16} = addr{12-9}; // Rn
1054 let Inst{9} = addr{8}; // U
1055 let Inst{7-0} = addr{7-0}; // imm
1057 def s : T2Iso <(outs), (ins target:$Rt, t2addrmode_so_reg:$addr), iis,
1058 opc, ".w\t$Rt, $addr",
1059 [(opnode target:$Rt, t2addrmode_so_reg:$addr)]> {
1060 let Inst{31-27} = 0b11111;
1061 let Inst{26-23} = 0b0000;
1062 let Inst{22-21} = opcod;
1063 let Inst{20} = 0; // !load
1064 let Inst{11-6} = 0b000000;
1067 let Inst{15-12} = Rt;
1070 let Inst{19-16} = addr{9-6}; // Rn
1071 let Inst{3-0} = addr{5-2}; // Rm
1072 let Inst{5-4} = addr{1-0}; // imm
1076 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
1077 /// register and one whose operand is a register rotated by 8/16/24.
1078 class T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode>
1079 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1080 opc, ".w\t$Rd, $Rm$rot",
1081 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1082 Requires<[IsThumb2]> {
1083 let Inst{31-27} = 0b11111;
1084 let Inst{26-23} = 0b0100;
1085 let Inst{22-20} = opcod;
1086 let Inst{19-16} = 0b1111; // Rn
1087 let Inst{15-12} = 0b1111;
1091 let Inst{5-4} = rot{1-0}; // rotate
1094 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
1095 class T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode>
1096 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot),
1097 IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
1098 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1099 Requires<[HasT2ExtractPack, IsThumb2]> {
1101 let Inst{31-27} = 0b11111;
1102 let Inst{26-23} = 0b0100;
1103 let Inst{22-20} = opcod;
1104 let Inst{19-16} = 0b1111; // Rn
1105 let Inst{15-12} = 0b1111;
1107 let Inst{5-4} = rot;
1110 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1112 class T2I_ext_rrot_sxtb16<bits<3> opcod, string opc>
1113 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1114 opc, "\t$Rd, $Rm$rot", []>,
1115 Requires<[IsThumb2, HasT2ExtractPack]> {
1117 let Inst{31-27} = 0b11111;
1118 let Inst{26-23} = 0b0100;
1119 let Inst{22-20} = opcod;
1120 let Inst{19-16} = 0b1111; // Rn
1121 let Inst{15-12} = 0b1111;
1123 let Inst{5-4} = rot;
1126 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1127 /// register and one whose operand is a register rotated by 8/16/24.
1128 class T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode>
1129 : T2ThreeReg<(outs rGPR:$Rd),
1130 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1131 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot",
1132 [(set rGPR:$Rd, (opnode rGPR:$Rn, (rotr rGPR:$Rm,rot_imm:$rot)))]>,
1133 Requires<[HasT2ExtractPack, IsThumb2]> {
1135 let Inst{31-27} = 0b11111;
1136 let Inst{26-23} = 0b0100;
1137 let Inst{22-20} = opcod;
1138 let Inst{15-12} = 0b1111;
1140 let Inst{5-4} = rot;
1143 class T2I_exta_rrot_np<bits<3> opcod, string opc>
1144 : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm,rot_imm:$rot),
1145 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []> {
1147 let Inst{31-27} = 0b11111;
1148 let Inst{26-23} = 0b0100;
1149 let Inst{22-20} = opcod;
1150 let Inst{15-12} = 0b1111;
1152 let Inst{5-4} = rot;
1155 //===----------------------------------------------------------------------===//
1157 //===----------------------------------------------------------------------===//
1159 //===----------------------------------------------------------------------===//
1160 // Miscellaneous Instructions.
1163 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1164 string asm, list<dag> pattern>
1165 : T2XI<oops, iops, itin, asm, pattern> {
1169 let Inst{11-8} = Rd;
1170 let Inst{26} = label{11};
1171 let Inst{14-12} = label{10-8};
1172 let Inst{7-0} = label{7-0};
1175 // LEApcrel - Load a pc-relative address into a register without offending the
1177 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1178 (ins t2adrlabel:$addr, pred:$p),
1179 IIC_iALUi, "adr{$p}.w\t$Rd, $addr", []> {
1180 let Inst{31-27} = 0b11110;
1181 let Inst{25-24} = 0b10;
1182 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1185 let Inst{19-16} = 0b1111; // Rn
1190 let Inst{11-8} = Rd;
1191 let Inst{23} = addr{12};
1192 let Inst{21} = addr{12};
1193 let Inst{26} = addr{11};
1194 let Inst{14-12} = addr{10-8};
1195 let Inst{7-0} = addr{7-0};
1197 let DecoderMethod = "DecodeT2Adr";
1200 let neverHasSideEffects = 1, isReMaterializable = 1 in
1201 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1203 let hasSideEffects = 1 in
1204 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1205 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1210 //===----------------------------------------------------------------------===//
1211 // Load / store Instructions.
1215 let canFoldAsLoad = 1, isReMaterializable = 1 in
1216 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si, GPR,
1217 UnOpFrag<(load node:$Src)>>;
1219 // Loads with zero extension
1220 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1221 rGPR, UnOpFrag<(zextloadi16 node:$Src)>>;
1222 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1223 rGPR, UnOpFrag<(zextloadi8 node:$Src)>>;
1225 // Loads with sign extension
1226 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1227 rGPR, UnOpFrag<(sextloadi16 node:$Src)>>;
1228 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1229 rGPR, UnOpFrag<(sextloadi8 node:$Src)>>;
1231 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1233 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1234 (ins t2addrmode_imm8s4:$addr),
1235 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", "", []>;
1236 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1238 // zextload i1 -> zextload i8
1239 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1240 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1241 def : T2Pat<(zextloadi1 t2addrmode_negimm8:$addr),
1242 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1243 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1244 (t2LDRBs t2addrmode_so_reg:$addr)>;
1245 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1246 (t2LDRBpci tconstpool:$addr)>;
1248 // extload -> zextload
1249 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1251 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1252 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1253 def : T2Pat<(extloadi1 t2addrmode_negimm8:$addr),
1254 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1255 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1256 (t2LDRBs t2addrmode_so_reg:$addr)>;
1257 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1258 (t2LDRBpci tconstpool:$addr)>;
1260 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1261 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1262 def : T2Pat<(extloadi8 t2addrmode_negimm8:$addr),
1263 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1264 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1265 (t2LDRBs t2addrmode_so_reg:$addr)>;
1266 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1267 (t2LDRBpci tconstpool:$addr)>;
1269 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1270 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1271 def : T2Pat<(extloadi16 t2addrmode_negimm8:$addr),
1272 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
1273 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1274 (t2LDRHs t2addrmode_so_reg:$addr)>;
1275 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1276 (t2LDRHpci tconstpool:$addr)>;
1278 // FIXME: The destination register of the loads and stores can't be PC, but
1279 // can be SP. We need another regclass (similar to rGPR) to represent
1280 // that. Not a pressing issue since these are selected manually,
1285 let mayLoad = 1, neverHasSideEffects = 1 in {
1286 def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1287 (ins t2addrmode_imm8:$addr),
1288 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1289 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1291 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1294 def t2LDR_POST : T2Ipostldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1295 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1296 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1297 "ldr", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1299 def t2LDRB_PRE : T2Ipreldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1300 (ins t2addrmode_imm8:$addr),
1301 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1302 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1304 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1306 def t2LDRB_POST : T2Ipostldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1307 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1308 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1309 "ldrb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1311 def t2LDRH_PRE : T2Ipreldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1312 (ins t2addrmode_imm8:$addr),
1313 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1314 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1316 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1318 def t2LDRH_POST : T2Ipostldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1319 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1320 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1321 "ldrh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1323 def t2LDRSB_PRE : T2Ipreldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1324 (ins t2addrmode_imm8:$addr),
1325 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1326 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1328 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1330 def t2LDRSB_POST : T2Ipostldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1331 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1332 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1333 "ldrsb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1335 def t2LDRSH_PRE : T2Ipreldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1336 (ins t2addrmode_imm8:$addr),
1337 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1338 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1340 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1342 def t2LDRSH_POST : T2Ipostldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1343 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1344 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1345 "ldrsh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1346 } // mayLoad = 1, neverHasSideEffects = 1
1348 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110).
1349 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1350 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1351 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_posimm8:$addr), ii, opc,
1352 "\t$Rt, $addr", []> {
1355 let Inst{31-27} = 0b11111;
1356 let Inst{26-25} = 0b00;
1357 let Inst{24} = signed;
1359 let Inst{22-21} = type;
1360 let Inst{20} = 1; // load
1361 let Inst{19-16} = addr{12-9};
1362 let Inst{15-12} = Rt;
1364 let Inst{10-8} = 0b110; // PUW.
1365 let Inst{7-0} = addr{7-0};
1368 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1369 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1370 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1371 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1372 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1375 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si, GPR,
1376 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1377 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1378 rGPR, BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1379 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1380 rGPR, BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1383 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1384 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1385 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1386 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", "", []>;
1390 let mayStore = 1, neverHasSideEffects = 1 in {
1391 def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
1392 (ins GPRnopc:$Rt, t2addrmode_imm8:$addr),
1393 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1394 "str", "\t$Rt, $addr!",
1395 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1396 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1398 def t2STRH_PRE : T2Ipreldst<0, 0b01, 0, 1, (outs GPRnopc:$Rn_wb),
1399 (ins rGPR:$Rt, t2addrmode_imm8:$addr),
1400 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1401 "strh", "\t$Rt, $addr!",
1402 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1403 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1406 def t2STRB_PRE : T2Ipreldst<0, 0b00, 0, 1, (outs GPRnopc:$Rn_wb),
1407 (ins rGPR:$Rt, t2addrmode_imm8:$addr),
1408 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1409 "strb", "\t$Rt, $addr!",
1410 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1411 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1413 } // mayStore = 1, neverHasSideEffects = 1
1415 def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
1416 (ins GPRnopc:$Rt, addr_offset_none:$Rn,
1417 t2am_imm8_offset:$offset),
1418 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1419 "str", "\t$Rt, $Rn$offset",
1420 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1421 [(set GPRnopc:$Rn_wb,
1422 (post_store GPRnopc:$Rt, addr_offset_none:$Rn,
1423 t2am_imm8_offset:$offset))]>;
1425 def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb),
1426 (ins rGPR:$Rt, addr_offset_none:$Rn,
1427 t2am_imm8_offset:$offset),
1428 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1429 "strh", "\t$Rt, $Rn$offset",
1430 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1431 [(set GPRnopc:$Rn_wb,
1432 (post_truncsti16 rGPR:$Rt, addr_offset_none:$Rn,
1433 t2am_imm8_offset:$offset))]>;
1435 def t2STRB_POST : T2Ipostldst<0, 0b00, 0, 0, (outs GPRnopc:$Rn_wb),
1436 (ins rGPR:$Rt, addr_offset_none:$Rn,
1437 t2am_imm8_offset:$offset),
1438 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1439 "strb", "\t$Rt, $Rn$offset",
1440 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1441 [(set GPRnopc:$Rn_wb,
1442 (post_truncsti8 rGPR:$Rt, addr_offset_none:$Rn,
1443 t2am_imm8_offset:$offset))]>;
1445 // Pseudo-instructions for pattern matching the pre-indexed stores. We can't
1446 // put the patterns on the instruction definitions directly as ISel wants
1447 // the address base and offset to be separate operands, not a single
1448 // complex operand like we represent the instructions themselves. The
1449 // pseudos map between the two.
1450 let usesCustomInserter = 1,
1451 Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in {
1452 def t2STR_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1453 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1455 [(set GPRnopc:$Rn_wb,
1456 (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1457 def t2STRB_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1458 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1460 [(set GPRnopc:$Rn_wb,
1461 (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1462 def t2STRH_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1463 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1465 [(set GPRnopc:$Rn_wb,
1466 (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1469 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1471 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1472 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1473 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1474 "\t$Rt, $addr", []> {
1475 let Inst{31-27} = 0b11111;
1476 let Inst{26-25} = 0b00;
1477 let Inst{24} = 0; // not signed
1479 let Inst{22-21} = type;
1480 let Inst{20} = 0; // store
1482 let Inst{10-8} = 0b110; // PUW
1486 let Inst{15-12} = Rt;
1487 let Inst{19-16} = addr{12-9};
1488 let Inst{7-0} = addr{7-0};
1491 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1492 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1493 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1495 // ldrd / strd pre / post variants
1496 // For disassembly only.
1498 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1499 (ins t2addrmode_imm8s4:$addr), IIC_iLoad_d_ru,
1500 "ldrd", "\t$Rt, $Rt2, $addr!", "$addr.base = $wb", []> {
1501 let AsmMatchConverter = "cvtT2LdrdPre";
1502 let DecoderMethod = "DecodeT2LDRDPreInstruction";
1505 def t2LDRD_POST : T2Ii8s4post<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1506 (ins addr_offset_none:$addr, t2am_imm8s4_offset:$imm),
1507 IIC_iLoad_d_ru, "ldrd", "\t$Rt, $Rt2, $addr$imm",
1508 "$addr.base = $wb", []>;
1510 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs GPR:$wb),
1511 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4:$addr),
1512 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr!",
1513 "$addr.base = $wb", []> {
1514 let AsmMatchConverter = "cvtT2StrdPre";
1515 let DecoderMethod = "DecodeT2STRDPreInstruction";
1518 def t2STRD_POST : T2Ii8s4post<0, 1, 0, (outs GPR:$wb),
1519 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr,
1520 t2am_imm8s4_offset:$imm),
1521 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr$imm",
1522 "$addr.base = $wb", []>;
1524 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1525 // data/instruction access.
1526 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1527 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1528 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1530 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1532 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1533 let Inst{31-25} = 0b1111100;
1534 let Inst{24} = instr;
1536 let Inst{21} = write;
1538 let Inst{15-12} = 0b1111;
1541 let addr{12} = 1; // add = TRUE
1542 let Inst{19-16} = addr{16-13}; // Rn
1543 let Inst{23} = addr{12}; // U
1544 let Inst{11-0} = addr{11-0}; // imm12
1547 def i8 : T2Ii8<(outs), (ins t2addrmode_negimm8:$addr), IIC_Preload, opc,
1549 [(ARMPreload t2addrmode_negimm8:$addr, (i32 write), (i32 instr))]> {
1550 let Inst{31-25} = 0b1111100;
1551 let Inst{24} = instr;
1552 let Inst{23} = 0; // U = 0
1554 let Inst{21} = write;
1556 let Inst{15-12} = 0b1111;
1557 let Inst{11-8} = 0b1100;
1560 let Inst{19-16} = addr{12-9}; // Rn
1561 let Inst{7-0} = addr{7-0}; // imm8
1564 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1566 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1567 let Inst{31-25} = 0b1111100;
1568 let Inst{24} = instr;
1569 let Inst{23} = 0; // add = TRUE for T1
1571 let Inst{21} = write;
1573 let Inst{15-12} = 0b1111;
1574 let Inst{11-6} = 0000000;
1577 let Inst{19-16} = addr{9-6}; // Rn
1578 let Inst{3-0} = addr{5-2}; // Rm
1579 let Inst{5-4} = addr{1-0}; // imm2
1581 let DecoderMethod = "DecodeT2LoadShift";
1583 // FIXME: We should have a separate 'pci' variant here. As-is we represent
1584 // it via the i12 variant, which it's related to, but that means we can
1585 // represent negative immediates, which aren't legal for anything except
1586 // the 'pci' case (Rn == 15).
1589 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1590 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1591 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1593 //===----------------------------------------------------------------------===//
1594 // Load / store multiple Instructions.
1597 multiclass thumb2_ld_mult<string asm, InstrItinClass itin,
1598 InstrItinClass itin_upd, bit L_bit> {
1600 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1601 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1605 let Inst{31-27} = 0b11101;
1606 let Inst{26-25} = 0b00;
1607 let Inst{24-23} = 0b01; // Increment After
1609 let Inst{21} = 0; // No writeback
1610 let Inst{20} = L_bit;
1611 let Inst{19-16} = Rn;
1612 let Inst{15-0} = regs;
1615 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1616 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1620 let Inst{31-27} = 0b11101;
1621 let Inst{26-25} = 0b00;
1622 let Inst{24-23} = 0b01; // Increment After
1624 let Inst{21} = 1; // Writeback
1625 let Inst{20} = L_bit;
1626 let Inst{19-16} = Rn;
1627 let Inst{15-0} = regs;
1630 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1631 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1635 let Inst{31-27} = 0b11101;
1636 let Inst{26-25} = 0b00;
1637 let Inst{24-23} = 0b10; // Decrement Before
1639 let Inst{21} = 0; // No writeback
1640 let Inst{20} = L_bit;
1641 let Inst{19-16} = Rn;
1642 let Inst{15-0} = regs;
1645 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1646 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1650 let Inst{31-27} = 0b11101;
1651 let Inst{26-25} = 0b00;
1652 let Inst{24-23} = 0b10; // Decrement Before
1654 let Inst{21} = 1; // Writeback
1655 let Inst{20} = L_bit;
1656 let Inst{19-16} = Rn;
1657 let Inst{15-0} = regs;
1661 let neverHasSideEffects = 1 in {
1663 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1664 defm t2LDM : thumb2_ld_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1666 multiclass thumb2_st_mult<string asm, InstrItinClass itin,
1667 InstrItinClass itin_upd, bit L_bit> {
1669 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1670 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1674 let Inst{31-27} = 0b11101;
1675 let Inst{26-25} = 0b00;
1676 let Inst{24-23} = 0b01; // Increment After
1678 let Inst{21} = 0; // No writeback
1679 let Inst{20} = L_bit;
1680 let Inst{19-16} = Rn;
1682 let Inst{14} = regs{14};
1684 let Inst{12-0} = regs{12-0};
1687 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1688 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1692 let Inst{31-27} = 0b11101;
1693 let Inst{26-25} = 0b00;
1694 let Inst{24-23} = 0b01; // Increment After
1696 let Inst{21} = 1; // Writeback
1697 let Inst{20} = L_bit;
1698 let Inst{19-16} = Rn;
1700 let Inst{14} = regs{14};
1702 let Inst{12-0} = regs{12-0};
1705 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1706 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1710 let Inst{31-27} = 0b11101;
1711 let Inst{26-25} = 0b00;
1712 let Inst{24-23} = 0b10; // Decrement Before
1714 let Inst{21} = 0; // No writeback
1715 let Inst{20} = L_bit;
1716 let Inst{19-16} = Rn;
1718 let Inst{14} = regs{14};
1720 let Inst{12-0} = regs{12-0};
1723 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1724 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1728 let Inst{31-27} = 0b11101;
1729 let Inst{26-25} = 0b00;
1730 let Inst{24-23} = 0b10; // Decrement Before
1732 let Inst{21} = 1; // Writeback
1733 let Inst{20} = L_bit;
1734 let Inst{19-16} = Rn;
1736 let Inst{14} = regs{14};
1738 let Inst{12-0} = regs{12-0};
1743 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1744 defm t2STM : thumb2_st_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1746 } // neverHasSideEffects
1749 //===----------------------------------------------------------------------===//
1750 // Move Instructions.
1753 let neverHasSideEffects = 1 in
1754 def t2MOVr : T2sTwoReg<(outs GPRnopc:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1755 "mov", ".w\t$Rd, $Rm", []> {
1756 let Inst{31-27} = 0b11101;
1757 let Inst{26-25} = 0b01;
1758 let Inst{24-21} = 0b0010;
1759 let Inst{19-16} = 0b1111; // Rn
1760 let Inst{14-12} = 0b000;
1761 let Inst{7-4} = 0b0000;
1763 def : t2InstAlias<"mov${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1764 pred:$p, zero_reg)>;
1765 def : t2InstAlias<"movs${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1767 def : t2InstAlias<"movs${p} $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1770 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1771 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1772 AddedComplexity = 1 in
1773 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1774 "mov", ".w\t$Rd, $imm",
1775 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1776 let Inst{31-27} = 0b11110;
1778 let Inst{24-21} = 0b0010;
1779 let Inst{19-16} = 0b1111; // Rn
1783 // cc_out is handled as part of the explicit mnemonic in the parser for 'mov'.
1784 // Use aliases to get that to play nice here.
1785 def : t2InstAlias<"movs${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1787 def : t2InstAlias<"movs${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1790 def : t2InstAlias<"mov${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1791 pred:$p, zero_reg)>;
1792 def : t2InstAlias<"mov${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1793 pred:$p, zero_reg)>;
1795 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1796 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
1797 "movw", "\t$Rd, $imm",
1798 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1799 let Inst{31-27} = 0b11110;
1801 let Inst{24-21} = 0b0010;
1802 let Inst{20} = 0; // The S bit.
1808 let Inst{11-8} = Rd;
1809 let Inst{19-16} = imm{15-12};
1810 let Inst{26} = imm{11};
1811 let Inst{14-12} = imm{10-8};
1812 let Inst{7-0} = imm{7-0};
1813 let DecoderMethod = "DecodeT2MOVTWInstruction";
1816 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1817 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1819 let Constraints = "$src = $Rd" in {
1820 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1821 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
1822 "movt", "\t$Rd, $imm",
1824 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1825 let Inst{31-27} = 0b11110;
1827 let Inst{24-21} = 0b0110;
1828 let Inst{20} = 0; // The S bit.
1834 let Inst{11-8} = Rd;
1835 let Inst{19-16} = imm{15-12};
1836 let Inst{26} = imm{11};
1837 let Inst{14-12} = imm{10-8};
1838 let Inst{7-0} = imm{7-0};
1839 let DecoderMethod = "DecodeT2MOVTWInstruction";
1842 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1843 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1846 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1848 //===----------------------------------------------------------------------===//
1849 // Extend Instructions.
1854 def t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1855 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1856 def t2SXTH : T2I_ext_rrot<0b000, "sxth",
1857 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1858 def t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1860 def t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1861 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1862 def t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1863 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1864 def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
1868 let AddedComplexity = 16 in {
1869 def t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1870 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1871 def t2UXTH : T2I_ext_rrot<0b001, "uxth",
1872 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1873 def t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1874 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1876 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1877 // The transformation should probably be done as a combiner action
1878 // instead so we can include a check for masking back in the upper
1879 // eight bits of the source into the lower eight bits of the result.
1880 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1881 // (t2UXTB16 rGPR:$Src, 3)>,
1882 // Requires<[HasT2ExtractPack, IsThumb2]>;
1883 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1884 (t2UXTB16 rGPR:$Src, 1)>,
1885 Requires<[HasT2ExtractPack, IsThumb2]>;
1887 def t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1888 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1889 def t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1890 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1891 def t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">;
1894 //===----------------------------------------------------------------------===//
1895 // Arithmetic Instructions.
1898 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1899 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1900 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1901 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1903 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1905 // Currently, t2ADDS/t2SUBS are pseudo opcodes that exist only in the
1906 // selection DAG. They are "lowered" to real t2ADD/t2SUB opcodes by
1907 // AdjustInstrPostInstrSelection where we determine whether or not to
1908 // set the "s" bit based on CPSR liveness.
1910 // FIXME: Eliminate t2ADDS/t2SUBS pseudo opcodes after adding tablegen
1911 // support for an optional CPSR definition that corresponds to the DAG
1912 // node's second value. We can then eliminate the implicit def of CPSR.
1913 defm t2ADDS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1914 BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>;
1915 defm t2SUBS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1916 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1918 let hasPostISelHook = 1 in {
1919 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1920 BinOpWithFlagFrag<(ARMadde node:$LHS, node:$RHS, node:$FLAG)>, 1>;
1921 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1922 BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>>;
1926 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1927 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1929 // FIXME: Eliminate them if we can write def : Pat patterns which defines
1930 // CPSR and the implicit def of CPSR is not needed.
1931 defm t2RSBS : T2I_rbin_s_is <BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1933 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1934 // The assume-no-carry-in form uses the negation of the input since add/sub
1935 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1936 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1938 // The AddedComplexity preferences the first variant over the others since
1939 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1940 let AddedComplexity = 1 in
1941 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1942 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1943 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1944 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1945 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1946 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1947 def : T2Pat<(add GPR:$src, imm0_65535_neg:$imm),
1948 (t2SUBrr GPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
1950 let AddedComplexity = 1 in
1951 def : T2Pat<(ARMaddc rGPR:$src, imm0_255_neg:$imm),
1952 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1953 def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm),
1954 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1955 def : T2Pat<(ARMaddc rGPR:$src, imm0_65535_neg:$imm),
1956 (t2SUBSrr rGPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
1957 // The with-carry-in form matches bitwise not instead of the negation.
1958 // Effectively, the inverse interpretation of the carry flag already accounts
1959 // for part of the negation.
1960 let AddedComplexity = 1 in
1961 def : T2Pat<(ARMadde rGPR:$src, imm0_255_not:$imm, CPSR),
1962 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
1963 def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR),
1964 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
1965 def : T2Pat<(ARMadde rGPR:$src, imm0_65535_neg:$imm, CPSR),
1966 (t2SBCrr rGPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
1968 // Select Bytes -- for disassembly only
1970 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1971 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []>,
1972 Requires<[IsThumb2, HasThumb2DSP]> {
1973 let Inst{31-27} = 0b11111;
1974 let Inst{26-24} = 0b010;
1976 let Inst{22-20} = 0b010;
1977 let Inst{15-12} = 0b1111;
1979 let Inst{6-4} = 0b000;
1982 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1983 // And Miscellaneous operations -- for disassembly only
1984 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1985 list<dag> pat = [/* For disassembly only; pattern left blank */],
1986 dag iops = (ins rGPR:$Rn, rGPR:$Rm),
1987 string asm = "\t$Rd, $Rn, $Rm">
1988 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
1989 Requires<[IsThumb2, HasThumb2DSP]> {
1990 let Inst{31-27} = 0b11111;
1991 let Inst{26-23} = 0b0101;
1992 let Inst{22-20} = op22_20;
1993 let Inst{15-12} = 0b1111;
1994 let Inst{7-4} = op7_4;
2000 let Inst{11-8} = Rd;
2001 let Inst{19-16} = Rn;
2005 // Saturating add/subtract -- for disassembly only
2007 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
2008 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))],
2009 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2010 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
2011 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
2012 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
2013 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [],
2014 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2015 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [],
2016 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2017 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
2018 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
2019 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))],
2020 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2021 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
2022 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
2023 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
2024 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
2025 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
2026 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
2027 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
2028 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
2030 // Signed/Unsigned add/subtract -- for disassembly only
2032 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
2033 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
2034 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
2035 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
2036 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
2037 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
2038 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
2039 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
2040 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
2041 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
2042 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
2043 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
2045 // Signed/Unsigned halving add/subtract -- for disassembly only
2047 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
2048 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
2049 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
2050 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
2051 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
2052 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
2053 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
2054 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
2055 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
2056 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
2057 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
2058 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
2060 // Helper class for disassembly only
2061 // A6.3.16 & A6.3.17
2062 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
2063 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2064 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2065 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2066 let Inst{31-27} = 0b11111;
2067 let Inst{26-24} = 0b011;
2068 let Inst{23} = long;
2069 let Inst{22-20} = op22_20;
2070 let Inst{7-4} = op7_4;
2073 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2074 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2075 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
2076 let Inst{31-27} = 0b11111;
2077 let Inst{26-24} = 0b011;
2078 let Inst{23} = long;
2079 let Inst{22-20} = op22_20;
2080 let Inst{7-4} = op7_4;
2083 // Unsigned Sum of Absolute Differences [and Accumulate].
2084 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2085 (ins rGPR:$Rn, rGPR:$Rm),
2086 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>,
2087 Requires<[IsThumb2, HasThumb2DSP]> {
2088 let Inst{15-12} = 0b1111;
2090 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2091 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
2092 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>,
2093 Requires<[IsThumb2, HasThumb2DSP]>;
2095 // Signed/Unsigned saturate.
2096 class T2SatI<dag oops, dag iops, InstrItinClass itin,
2097 string opc, string asm, list<dag> pattern>
2098 : T2I<oops, iops, itin, opc, asm, pattern> {
2104 let Inst{11-8} = Rd;
2105 let Inst{19-16} = Rn;
2106 let Inst{4-0} = sat_imm;
2107 let Inst{21} = sh{5};
2108 let Inst{14-12} = sh{4-2};
2109 let Inst{7-6} = sh{1-0};
2114 (ins imm1_32:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2115 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2116 let Inst{31-27} = 0b11110;
2117 let Inst{25-22} = 0b1100;
2123 def t2SSAT16: T2SatI<
2124 (outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary,
2125 "ssat16", "\t$Rd, $sat_imm, $Rn", []>,
2126 Requires<[IsThumb2, HasThumb2DSP]> {
2127 let Inst{31-27} = 0b11110;
2128 let Inst{25-22} = 0b1100;
2131 let Inst{21} = 1; // sh = '1'
2132 let Inst{14-12} = 0b000; // imm3 = '000'
2133 let Inst{7-6} = 0b00; // imm2 = '00'
2134 let Inst{5-4} = 0b00;
2139 (ins imm0_31:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2140 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2141 let Inst{31-27} = 0b11110;
2142 let Inst{25-22} = 0b1110;
2147 def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins imm0_15:$sat_imm, rGPR:$Rn),
2149 "usat16", "\t$Rd, $sat_imm, $Rn", []>,
2150 Requires<[IsThumb2, HasThumb2DSP]> {
2151 let Inst{31-22} = 0b1111001110;
2154 let Inst{21} = 1; // sh = '1'
2155 let Inst{14-12} = 0b000; // imm3 = '000'
2156 let Inst{7-6} = 0b00; // imm2 = '00'
2157 let Inst{5-4} = 0b00;
2160 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2161 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2163 //===----------------------------------------------------------------------===//
2164 // Shift and rotate Instructions.
2167 defm t2LSL : T2I_sh_ir<0b00, "lsl", imm0_31,
2168 BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2169 defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr,
2170 BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2171 defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr,
2172 BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2173 defm t2ROR : T2I_sh_ir<0b11, "ror", imm0_31,
2174 BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2176 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
2177 def : T2Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
2178 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
2180 let Uses = [CPSR] in {
2181 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2182 "rrx", "\t$Rd, $Rm",
2183 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2184 let Inst{31-27} = 0b11101;
2185 let Inst{26-25} = 0b01;
2186 let Inst{24-21} = 0b0010;
2187 let Inst{19-16} = 0b1111; // Rn
2188 let Inst{14-12} = 0b000;
2189 let Inst{7-4} = 0b0011;
2193 let isCodeGenOnly = 1, Defs = [CPSR] in {
2194 def t2MOVsrl_flag : T2TwoRegShiftImm<
2195 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2196 "lsrs", ".w\t$Rd, $Rm, #1",
2197 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2198 let Inst{31-27} = 0b11101;
2199 let Inst{26-25} = 0b01;
2200 let Inst{24-21} = 0b0010;
2201 let Inst{20} = 1; // The S bit.
2202 let Inst{19-16} = 0b1111; // Rn
2203 let Inst{5-4} = 0b01; // Shift type.
2204 // Shift amount = Inst{14-12:7-6} = 1.
2205 let Inst{14-12} = 0b000;
2206 let Inst{7-6} = 0b01;
2208 def t2MOVsra_flag : T2TwoRegShiftImm<
2209 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2210 "asrs", ".w\t$Rd, $Rm, #1",
2211 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2212 let Inst{31-27} = 0b11101;
2213 let Inst{26-25} = 0b01;
2214 let Inst{24-21} = 0b0010;
2215 let Inst{20} = 1; // The S bit.
2216 let Inst{19-16} = 0b1111; // Rn
2217 let Inst{5-4} = 0b10; // Shift type.
2218 // Shift amount = Inst{14-12:7-6} = 1.
2219 let Inst{14-12} = 0b000;
2220 let Inst{7-6} = 0b01;
2224 //===----------------------------------------------------------------------===//
2225 // Bitwise Instructions.
2228 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2229 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2230 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2231 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2232 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2233 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2234 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2235 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2236 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2238 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2239 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2240 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2242 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2243 string opc, string asm, list<dag> pattern>
2244 : T2I<oops, iops, itin, opc, asm, pattern> {
2249 let Inst{11-8} = Rd;
2250 let Inst{4-0} = msb{4-0};
2251 let Inst{14-12} = lsb{4-2};
2252 let Inst{7-6} = lsb{1-0};
2255 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2256 string opc, string asm, list<dag> pattern>
2257 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2260 let Inst{19-16} = Rn;
2263 let Constraints = "$src = $Rd" in
2264 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2265 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2266 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2267 let Inst{31-27} = 0b11110;
2268 let Inst{26} = 0; // should be 0.
2270 let Inst{24-20} = 0b10110;
2271 let Inst{19-16} = 0b1111; // Rn
2273 let Inst{5} = 0; // should be 0.
2276 let msb{4-0} = imm{9-5};
2277 let lsb{4-0} = imm{4-0};
2280 def t2SBFX: T2TwoRegBitFI<
2281 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2282 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2283 let Inst{31-27} = 0b11110;
2285 let Inst{24-20} = 0b10100;
2289 def t2UBFX: T2TwoRegBitFI<
2290 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2291 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2292 let Inst{31-27} = 0b11110;
2294 let Inst{24-20} = 0b11100;
2298 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2299 let Constraints = "$src = $Rd" in {
2300 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2301 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2302 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2303 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2304 bf_inv_mask_imm:$imm))]> {
2305 let Inst{31-27} = 0b11110;
2306 let Inst{26} = 0; // should be 0.
2308 let Inst{24-20} = 0b10110;
2310 let Inst{5} = 0; // should be 0.
2313 let msb{4-0} = imm{9-5};
2314 let lsb{4-0} = imm{4-0};
2318 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2319 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2320 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2322 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
2323 /// unary operation that produces a value. These are predicable and can be
2324 /// changed to modify CPSR.
2325 multiclass T2I_un_irs<bits<4> opcod, string opc,
2326 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
2327 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
2329 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
2331 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
2332 let isAsCheapAsAMove = Cheap;
2333 let isReMaterializable = ReMat;
2334 let Inst{31-27} = 0b11110;
2336 let Inst{24-21} = opcod;
2337 let Inst{19-16} = 0b1111; // Rn
2341 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
2342 opc, ".w\t$Rd, $Rm",
2343 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
2344 let Inst{31-27} = 0b11101;
2345 let Inst{26-25} = 0b01;
2346 let Inst{24-21} = opcod;
2347 let Inst{19-16} = 0b1111; // Rn
2348 let Inst{14-12} = 0b000; // imm3
2349 let Inst{7-6} = 0b00; // imm2
2350 let Inst{5-4} = 0b00; // type
2353 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
2354 opc, ".w\t$Rd, $ShiftedRm",
2355 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
2356 let Inst{31-27} = 0b11101;
2357 let Inst{26-25} = 0b01;
2358 let Inst{24-21} = opcod;
2359 let Inst{19-16} = 0b1111; // Rn
2363 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2364 let AddedComplexity = 1 in
2365 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2366 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2367 UnOpFrag<(not node:$Src)>, 1, 1>;
2369 let AddedComplexity = 1 in
2370 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2371 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2373 // top16Zero - answer true if the upper 16 bits of $src are 0, false otherwise
2374 def top16Zero: PatLeaf<(i32 rGPR:$src), [{
2375 return CurDAG->MaskedValueIsZero(SDValue(N,0), APInt::getHighBitsSet(32, 16));
2378 // so_imm_notSext is needed instead of so_imm_not, as the value of imm
2379 // will match the extended, not the original bitWidth for $src.
2380 def : T2Pat<(and top16Zero:$src, t2_so_imm_notSext:$imm),
2381 (t2BICri rGPR:$src, t2_so_imm_notSext:$imm)>;
2384 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2385 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2386 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2387 Requires<[IsThumb2]>;
2389 def : T2Pat<(t2_so_imm_not:$src),
2390 (t2MVNi t2_so_imm_not:$src)>;
2392 //===----------------------------------------------------------------------===//
2393 // Multiply Instructions.
2395 let isCommutable = 1 in
2396 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2397 "mul", "\t$Rd, $Rn, $Rm",
2398 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2399 let Inst{31-27} = 0b11111;
2400 let Inst{26-23} = 0b0110;
2401 let Inst{22-20} = 0b000;
2402 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2403 let Inst{7-4} = 0b0000; // Multiply
2406 def t2MLA: T2FourReg<
2407 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2408 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2409 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2410 let Inst{31-27} = 0b11111;
2411 let Inst{26-23} = 0b0110;
2412 let Inst{22-20} = 0b000;
2413 let Inst{7-4} = 0b0000; // Multiply
2416 def t2MLS: T2FourReg<
2417 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2418 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2419 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2420 let Inst{31-27} = 0b11111;
2421 let Inst{26-23} = 0b0110;
2422 let Inst{22-20} = 0b000;
2423 let Inst{7-4} = 0b0001; // Multiply and Subtract
2426 // Extra precision multiplies with low / high results
2427 let neverHasSideEffects = 1 in {
2428 let isCommutable = 1 in {
2429 def t2SMULL : T2MulLong<0b000, 0b0000,
2430 (outs rGPR:$RdLo, rGPR:$RdHi),
2431 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2432 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2434 def t2UMULL : T2MulLong<0b010, 0b0000,
2435 (outs rGPR:$RdLo, rGPR:$RdHi),
2436 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2437 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2440 // Multiply + accumulate
2441 def t2SMLAL : T2MulLong<0b100, 0b0000,
2442 (outs rGPR:$RdLo, rGPR:$RdHi),
2443 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2444 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2446 def t2UMLAL : T2MulLong<0b110, 0b0000,
2447 (outs rGPR:$RdLo, rGPR:$RdHi),
2448 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2449 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2451 def t2UMAAL : T2MulLong<0b110, 0b0110,
2452 (outs rGPR:$RdLo, rGPR:$RdHi),
2453 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2454 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2455 Requires<[IsThumb2, HasThumb2DSP]>;
2456 } // neverHasSideEffects
2458 // Rounding variants of the below included for disassembly only
2460 // Most significant word multiply
2461 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2462 "smmul", "\t$Rd, $Rn, $Rm",
2463 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]>,
2464 Requires<[IsThumb2, HasThumb2DSP]> {
2465 let Inst{31-27} = 0b11111;
2466 let Inst{26-23} = 0b0110;
2467 let Inst{22-20} = 0b101;
2468 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2469 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2472 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2473 "smmulr", "\t$Rd, $Rn, $Rm", []>,
2474 Requires<[IsThumb2, HasThumb2DSP]> {
2475 let Inst{31-27} = 0b11111;
2476 let Inst{26-23} = 0b0110;
2477 let Inst{22-20} = 0b101;
2478 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2479 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2482 def t2SMMLA : T2FourReg<
2483 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2484 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2485 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>,
2486 Requires<[IsThumb2, HasThumb2DSP]> {
2487 let Inst{31-27} = 0b11111;
2488 let Inst{26-23} = 0b0110;
2489 let Inst{22-20} = 0b101;
2490 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2493 def t2SMMLAR: T2FourReg<
2494 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2495 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
2496 Requires<[IsThumb2, HasThumb2DSP]> {
2497 let Inst{31-27} = 0b11111;
2498 let Inst{26-23} = 0b0110;
2499 let Inst{22-20} = 0b101;
2500 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2503 def t2SMMLS: T2FourReg<
2504 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2505 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2506 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>,
2507 Requires<[IsThumb2, HasThumb2DSP]> {
2508 let Inst{31-27} = 0b11111;
2509 let Inst{26-23} = 0b0110;
2510 let Inst{22-20} = 0b110;
2511 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2514 def t2SMMLSR:T2FourReg<
2515 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2516 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
2517 Requires<[IsThumb2, HasThumb2DSP]> {
2518 let Inst{31-27} = 0b11111;
2519 let Inst{26-23} = 0b0110;
2520 let Inst{22-20} = 0b110;
2521 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2524 multiclass T2I_smul<string opc, PatFrag opnode> {
2525 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2526 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2527 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2528 (sext_inreg rGPR:$Rm, i16)))]>,
2529 Requires<[IsThumb2, HasThumb2DSP]> {
2530 let Inst{31-27} = 0b11111;
2531 let Inst{26-23} = 0b0110;
2532 let Inst{22-20} = 0b001;
2533 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2534 let Inst{7-6} = 0b00;
2535 let Inst{5-4} = 0b00;
2538 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2539 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2540 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2541 (sra rGPR:$Rm, (i32 16))))]>,
2542 Requires<[IsThumb2, HasThumb2DSP]> {
2543 let Inst{31-27} = 0b11111;
2544 let Inst{26-23} = 0b0110;
2545 let Inst{22-20} = 0b001;
2546 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2547 let Inst{7-6} = 0b00;
2548 let Inst{5-4} = 0b01;
2551 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2552 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2553 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2554 (sext_inreg rGPR:$Rm, i16)))]>,
2555 Requires<[IsThumb2, HasThumb2DSP]> {
2556 let Inst{31-27} = 0b11111;
2557 let Inst{26-23} = 0b0110;
2558 let Inst{22-20} = 0b001;
2559 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2560 let Inst{7-6} = 0b00;
2561 let Inst{5-4} = 0b10;
2564 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2565 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2566 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2567 (sra rGPR:$Rm, (i32 16))))]>,
2568 Requires<[IsThumb2, HasThumb2DSP]> {
2569 let Inst{31-27} = 0b11111;
2570 let Inst{26-23} = 0b0110;
2571 let Inst{22-20} = 0b001;
2572 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2573 let Inst{7-6} = 0b00;
2574 let Inst{5-4} = 0b11;
2577 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2578 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2579 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2580 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]>,
2581 Requires<[IsThumb2, HasThumb2DSP]> {
2582 let Inst{31-27} = 0b11111;
2583 let Inst{26-23} = 0b0110;
2584 let Inst{22-20} = 0b011;
2585 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2586 let Inst{7-6} = 0b00;
2587 let Inst{5-4} = 0b00;
2590 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2591 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2592 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2593 (sra rGPR:$Rm, (i32 16))), (i32 16)))]>,
2594 Requires<[IsThumb2, HasThumb2DSP]> {
2595 let Inst{31-27} = 0b11111;
2596 let Inst{26-23} = 0b0110;
2597 let Inst{22-20} = 0b011;
2598 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2599 let Inst{7-6} = 0b00;
2600 let Inst{5-4} = 0b01;
2605 multiclass T2I_smla<string opc, PatFrag opnode> {
2607 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2608 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2609 [(set rGPR:$Rd, (add rGPR:$Ra,
2610 (opnode (sext_inreg rGPR:$Rn, i16),
2611 (sext_inreg rGPR:$Rm, i16))))]>,
2612 Requires<[IsThumb2, HasThumb2DSP]> {
2613 let Inst{31-27} = 0b11111;
2614 let Inst{26-23} = 0b0110;
2615 let Inst{22-20} = 0b001;
2616 let Inst{7-6} = 0b00;
2617 let Inst{5-4} = 0b00;
2621 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2622 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2623 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2624 (sra rGPR:$Rm, (i32 16)))))]>,
2625 Requires<[IsThumb2, HasThumb2DSP]> {
2626 let Inst{31-27} = 0b11111;
2627 let Inst{26-23} = 0b0110;
2628 let Inst{22-20} = 0b001;
2629 let Inst{7-6} = 0b00;
2630 let Inst{5-4} = 0b01;
2634 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2635 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2636 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2637 (sext_inreg rGPR:$Rm, i16))))]>,
2638 Requires<[IsThumb2, HasThumb2DSP]> {
2639 let Inst{31-27} = 0b11111;
2640 let Inst{26-23} = 0b0110;
2641 let Inst{22-20} = 0b001;
2642 let Inst{7-6} = 0b00;
2643 let Inst{5-4} = 0b10;
2647 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2648 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2649 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2650 (sra rGPR:$Rm, (i32 16)))))]>,
2651 Requires<[IsThumb2, HasThumb2DSP]> {
2652 let Inst{31-27} = 0b11111;
2653 let Inst{26-23} = 0b0110;
2654 let Inst{22-20} = 0b001;
2655 let Inst{7-6} = 0b00;
2656 let Inst{5-4} = 0b11;
2660 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2661 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2662 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2663 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]>,
2664 Requires<[IsThumb2, HasThumb2DSP]> {
2665 let Inst{31-27} = 0b11111;
2666 let Inst{26-23} = 0b0110;
2667 let Inst{22-20} = 0b011;
2668 let Inst{7-6} = 0b00;
2669 let Inst{5-4} = 0b00;
2673 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2674 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2675 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2676 (sra rGPR:$Rm, (i32 16))), (i32 16))))]>,
2677 Requires<[IsThumb2, HasThumb2DSP]> {
2678 let Inst{31-27} = 0b11111;
2679 let Inst{26-23} = 0b0110;
2680 let Inst{22-20} = 0b011;
2681 let Inst{7-6} = 0b00;
2682 let Inst{5-4} = 0b01;
2686 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2687 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2689 // Halfword multiple accumulate long: SMLAL<x><y>
2690 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2691 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2692 [/* For disassembly only; pattern left blank */]>,
2693 Requires<[IsThumb2, HasThumb2DSP]>;
2694 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2695 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2696 [/* For disassembly only; pattern left blank */]>,
2697 Requires<[IsThumb2, HasThumb2DSP]>;
2698 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2699 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2700 [/* For disassembly only; pattern left blank */]>,
2701 Requires<[IsThumb2, HasThumb2DSP]>;
2702 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2703 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2704 [/* For disassembly only; pattern left blank */]>,
2705 Requires<[IsThumb2, HasThumb2DSP]>;
2707 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2708 def t2SMUAD: T2ThreeReg_mac<
2709 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2710 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>,
2711 Requires<[IsThumb2, HasThumb2DSP]> {
2712 let Inst{15-12} = 0b1111;
2714 def t2SMUADX:T2ThreeReg_mac<
2715 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2716 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []>,
2717 Requires<[IsThumb2, HasThumb2DSP]> {
2718 let Inst{15-12} = 0b1111;
2720 def t2SMUSD: T2ThreeReg_mac<
2721 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2722 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []>,
2723 Requires<[IsThumb2, HasThumb2DSP]> {
2724 let Inst{15-12} = 0b1111;
2726 def t2SMUSDX:T2ThreeReg_mac<
2727 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2728 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []>,
2729 Requires<[IsThumb2, HasThumb2DSP]> {
2730 let Inst{15-12} = 0b1111;
2732 def t2SMLAD : T2FourReg_mac<
2733 0, 0b010, 0b0000, (outs rGPR:$Rd),
2734 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2735 "\t$Rd, $Rn, $Rm, $Ra", []>,
2736 Requires<[IsThumb2, HasThumb2DSP]>;
2737 def t2SMLADX : T2FourReg_mac<
2738 0, 0b010, 0b0001, (outs rGPR:$Rd),
2739 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2740 "\t$Rd, $Rn, $Rm, $Ra", []>,
2741 Requires<[IsThumb2, HasThumb2DSP]>;
2742 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2743 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2744 "\t$Rd, $Rn, $Rm, $Ra", []>,
2745 Requires<[IsThumb2, HasThumb2DSP]>;
2746 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2747 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2748 "\t$Rd, $Rn, $Rm, $Ra", []>,
2749 Requires<[IsThumb2, HasThumb2DSP]>;
2750 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2751 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64, "smlald",
2752 "\t$Ra, $Rd, $Rn, $Rm", []>,
2753 Requires<[IsThumb2, HasThumb2DSP]>;
2754 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2755 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaldx",
2756 "\t$Ra, $Rd, $Rn, $Rm", []>,
2757 Requires<[IsThumb2, HasThumb2DSP]>;
2758 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2759 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlsld",
2760 "\t$Ra, $Rd, $Rn, $Rm", []>,
2761 Requires<[IsThumb2, HasThumb2DSP]>;
2762 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2763 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2764 "\t$Ra, $Rd, $Rn, $Rm", []>,
2765 Requires<[IsThumb2, HasThumb2DSP]>;
2767 //===----------------------------------------------------------------------===//
2768 // Division Instructions.
2769 // Signed and unsigned division on v7-M
2771 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2772 "sdiv", "\t$Rd, $Rn, $Rm",
2773 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
2774 Requires<[HasDivide, IsThumb2]> {
2775 let Inst{31-27} = 0b11111;
2776 let Inst{26-21} = 0b011100;
2778 let Inst{15-12} = 0b1111;
2779 let Inst{7-4} = 0b1111;
2782 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2783 "udiv", "\t$Rd, $Rn, $Rm",
2784 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
2785 Requires<[HasDivide, IsThumb2]> {
2786 let Inst{31-27} = 0b11111;
2787 let Inst{26-21} = 0b011101;
2789 let Inst{15-12} = 0b1111;
2790 let Inst{7-4} = 0b1111;
2793 //===----------------------------------------------------------------------===//
2794 // Misc. Arithmetic Instructions.
2797 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2798 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2799 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2800 let Inst{31-27} = 0b11111;
2801 let Inst{26-22} = 0b01010;
2802 let Inst{21-20} = op1;
2803 let Inst{15-12} = 0b1111;
2804 let Inst{7-6} = 0b10;
2805 let Inst{5-4} = op2;
2809 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2810 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2812 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2813 "rbit", "\t$Rd, $Rm",
2814 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2816 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2817 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2819 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2820 "rev16", ".w\t$Rd, $Rm",
2821 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>;
2823 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2824 "revsh", ".w\t$Rd, $Rm",
2825 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>;
2827 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
2828 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
2829 (t2REVSH rGPR:$Rm)>;
2831 def t2PKHBT : T2ThreeReg<
2832 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_lsl_amt:$sh),
2833 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2834 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2835 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
2837 Requires<[HasT2ExtractPack, IsThumb2]> {
2838 let Inst{31-27} = 0b11101;
2839 let Inst{26-25} = 0b01;
2840 let Inst{24-20} = 0b01100;
2841 let Inst{5} = 0; // BT form
2845 let Inst{14-12} = sh{4-2};
2846 let Inst{7-6} = sh{1-0};
2849 // Alternate cases for PKHBT where identities eliminate some nodes.
2850 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2851 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2852 Requires<[HasT2ExtractPack, IsThumb2]>;
2853 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2854 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2855 Requires<[HasT2ExtractPack, IsThumb2]>;
2857 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2858 // will match the pattern below.
2859 def t2PKHTB : T2ThreeReg<
2860 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_asr_amt:$sh),
2861 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2862 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2863 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
2865 Requires<[HasT2ExtractPack, IsThumb2]> {
2866 let Inst{31-27} = 0b11101;
2867 let Inst{26-25} = 0b01;
2868 let Inst{24-20} = 0b01100;
2869 let Inst{5} = 1; // TB form
2873 let Inst{14-12} = sh{4-2};
2874 let Inst{7-6} = sh{1-0};
2877 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2878 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2879 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2880 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2881 Requires<[HasT2ExtractPack, IsThumb2]>;
2882 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2883 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2884 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
2885 Requires<[HasT2ExtractPack, IsThumb2]>;
2887 //===----------------------------------------------------------------------===//
2888 // Comparison Instructions...
2890 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2891 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2892 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2894 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm),
2895 (t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>;
2896 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, rGPR:$rhs),
2897 (t2CMPrr GPRnopc:$lhs, rGPR:$rhs)>;
2898 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg:$rhs),
2899 (t2CMPrs GPRnopc:$lhs, t2_so_reg:$rhs)>;
2901 let isCompare = 1, Defs = [CPSR] in {
2903 def t2CMNri : T2OneRegCmpImm<
2904 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iCMPi,
2905 "cmn", ".w\t$Rn, $imm",
2906 [(ARMcmn GPRnopc:$Rn, (ineg t2_so_imm:$imm))]> {
2907 let Inst{31-27} = 0b11110;
2909 let Inst{24-21} = 0b1000;
2910 let Inst{20} = 1; // The S bit.
2912 let Inst{11-8} = 0b1111; // Rd
2915 def t2CMNzrr : T2TwoRegCmp<
2916 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iCMPr,
2917 "cmn", ".w\t$Rn, $Rm",
2918 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
2919 GPRnopc:$Rn, rGPR:$Rm)]> {
2920 let Inst{31-27} = 0b11101;
2921 let Inst{26-25} = 0b01;
2922 let Inst{24-21} = 0b1000;
2923 let Inst{20} = 1; // The S bit.
2924 let Inst{14-12} = 0b000; // imm3
2925 let Inst{11-8} = 0b1111; // Rd
2926 let Inst{7-6} = 0b00; // imm2
2927 let Inst{5-4} = 0b00; // type
2930 def t2CMNzrs : T2OneRegCmpShiftedReg<
2931 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), IIC_iCMPsi,
2932 "cmn", ".w\t$Rn, $ShiftedRm",
2933 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
2934 GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]> {
2935 let Inst{31-27} = 0b11101;
2936 let Inst{26-25} = 0b01;
2937 let Inst{24-21} = 0b1000;
2938 let Inst{20} = 1; // The S bit.
2939 let Inst{11-8} = 0b1111; // Rd
2943 // Assembler aliases w/o the ".w" suffix.
2944 // No alias here for 'rr' version as not all instantiations of this multiclass
2945 // want one (CMP in particular, does not).
2946 def : t2InstAlias<"cmn${p} $Rn, $imm",
2947 (t2CMNri GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>;
2948 def : t2InstAlias<"cmn${p} $Rn, $shift",
2949 (t2CMNzrs GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>;
2951 def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2952 (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2954 def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
2955 (t2CMNri GPRnopc:$src, t2_so_imm_neg:$imm)>;
2957 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2958 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2959 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2960 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2961 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2962 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2964 // Conditional moves
2965 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2966 // a two-value operand where a dag node expects two operands. :(
2967 let neverHasSideEffects = 1 in {
2969 let isCommutable = 1, isSelect = 1 in
2970 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
2971 (ins rGPR:$false, rGPR:$Rm, pred:$p),
2973 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2974 RegConstraint<"$false = $Rd">;
2976 let isMoveImm = 1 in
2977 def t2MOVCCi : t2PseudoInst<(outs rGPR:$Rd),
2978 (ins rGPR:$false, t2_so_imm:$imm, pred:$p),
2980 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2981 RegConstraint<"$false = $Rd">;
2983 // FIXME: Pseudo-ize these. For now, just mark codegen only.
2984 let isCodeGenOnly = 1 in {
2985 let isMoveImm = 1 in
2986 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, imm0_65535_expr:$imm),
2988 "movw", "\t$Rd, $imm", []>,
2989 RegConstraint<"$false = $Rd"> {
2990 let Inst{31-27} = 0b11110;
2992 let Inst{24-21} = 0b0010;
2993 let Inst{20} = 0; // The S bit.
2999 let Inst{11-8} = Rd;
3000 let Inst{19-16} = imm{15-12};
3001 let Inst{26} = imm{11};
3002 let Inst{14-12} = imm{10-8};
3003 let Inst{7-0} = imm{7-0};
3006 let isMoveImm = 1 in
3007 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
3008 (ins rGPR:$false, i32imm:$src, pred:$p),
3009 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
3011 let isMoveImm = 1 in
3012 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
3013 IIC_iCMOVi, "mvn", "\t$Rd, $imm",
3014 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
3015 imm:$cc, CCR:$ccr))*/]>,
3016 RegConstraint<"$false = $Rd"> {
3017 let Inst{31-27} = 0b11110;
3019 let Inst{24-21} = 0b0011;
3020 let Inst{20} = 0; // The S bit.
3021 let Inst{19-16} = 0b1111; // Rn
3025 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
3026 string opc, string asm, list<dag> pattern>
3027 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
3028 let Inst{31-27} = 0b11101;
3029 let Inst{26-25} = 0b01;
3030 let Inst{24-21} = 0b0010;
3031 let Inst{20} = 0; // The S bit.
3032 let Inst{19-16} = 0b1111; // Rn
3033 let Inst{5-4} = opcod; // Shift type.
3035 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
3036 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3037 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
3038 RegConstraint<"$false = $Rd">;
3039 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
3040 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3041 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
3042 RegConstraint<"$false = $Rd">;
3043 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
3044 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3045 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
3046 RegConstraint<"$false = $Rd">;
3047 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
3048 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3049 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
3050 RegConstraint<"$false = $Rd">;
3051 } // isCodeGenOnly = 1
3053 multiclass T2I_bincc_irs<Instruction iri, Instruction irr, Instruction irs,
3054 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis> {
3056 def ri : t2PseudoExpand<(outs rGPR:$Rd),
3057 (ins rGPR:$Rfalse, rGPR:$Rn, t2_so_imm:$imm,
3058 pred:$p, cc_out:$s),
3060 (iri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>,
3061 RegConstraint<"$Rfalse = $Rd">;
3063 def rr : t2PseudoExpand<(outs rGPR:$Rd),
3064 (ins rGPR:$Rfalse, rGPR:$Rn, rGPR:$Rm,
3065 pred:$p, cc_out:$s),
3067 (irr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>,
3068 RegConstraint<"$Rfalse = $Rd">;
3070 def rs : t2PseudoExpand<(outs rGPR:$Rd),
3071 (ins rGPR:$Rfalse, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3072 pred:$p, cc_out:$s),
3074 (irs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>,
3075 RegConstraint<"$Rfalse = $Rd">;
3078 defm t2ANDCC : T2I_bincc_irs<t2ANDri, t2ANDrr, t2ANDrs,
3079 IIC_iBITi, IIC_iBITr, IIC_iBITsi>;
3080 defm t2ORRCC : T2I_bincc_irs<t2ORRri, t2ORRrr, t2ORRrs,
3081 IIC_iBITi, IIC_iBITr, IIC_iBITsi>;
3082 defm t2EORCC : T2I_bincc_irs<t2EORri, t2EORrr, t2EORrs,
3083 IIC_iBITi, IIC_iBITr, IIC_iBITsi>;
3084 } // neverHasSideEffects
3086 //===----------------------------------------------------------------------===//
3087 // Atomic operations intrinsics
3090 // memory barriers protect the atomic sequences
3091 let hasSideEffects = 1 in {
3092 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
3093 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
3094 Requires<[IsThumb, HasDB]> {
3096 let Inst{31-4} = 0xf3bf8f5;
3097 let Inst{3-0} = opt;
3101 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
3102 "dsb", "\t$opt", []>,
3103 Requires<[IsThumb, HasDB]> {
3105 let Inst{31-4} = 0xf3bf8f4;
3106 let Inst{3-0} = opt;
3109 def t2ISB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
3111 []>, Requires<[IsThumb, HasDB]> {
3113 let Inst{31-4} = 0xf3bf8f6;
3114 let Inst{3-0} = opt;
3117 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
3118 InstrItinClass itin, string opc, string asm, string cstr,
3119 list<dag> pattern, bits<4> rt2 = 0b1111>
3120 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3121 let Inst{31-27} = 0b11101;
3122 let Inst{26-20} = 0b0001101;
3123 let Inst{11-8} = rt2;
3124 let Inst{7-6} = 0b01;
3125 let Inst{5-4} = opcod;
3126 let Inst{3-0} = 0b1111;
3130 let Inst{19-16} = addr;
3131 let Inst{15-12} = Rt;
3133 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
3134 InstrItinClass itin, string opc, string asm, string cstr,
3135 list<dag> pattern, bits<4> rt2 = 0b1111>
3136 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3137 let Inst{31-27} = 0b11101;
3138 let Inst{26-20} = 0b0001100;
3139 let Inst{11-8} = rt2;
3140 let Inst{7-6} = 0b01;
3141 let Inst{5-4} = opcod;
3147 let Inst{19-16} = addr;
3148 let Inst{15-12} = Rt;
3151 let mayLoad = 1 in {
3152 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3153 AddrModeNone, 4, NoItinerary,
3154 "ldrexb", "\t$Rt, $addr", "", []>;
3155 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3156 AddrModeNone, 4, NoItinerary,
3157 "ldrexh", "\t$Rt, $addr", "", []>;
3158 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_imm0_1020s4:$addr),
3159 AddrModeNone, 4, NoItinerary,
3160 "ldrex", "\t$Rt, $addr", "", []> {
3163 let Inst{31-27} = 0b11101;
3164 let Inst{26-20} = 0b0000101;
3165 let Inst{19-16} = addr{11-8};
3166 let Inst{15-12} = Rt;
3167 let Inst{11-8} = 0b1111;
3168 let Inst{7-0} = addr{7-0};
3170 let hasExtraDefRegAllocReq = 1 in
3171 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
3172 (ins addr_offset_none:$addr),
3173 AddrModeNone, 4, NoItinerary,
3174 "ldrexd", "\t$Rt, $Rt2, $addr", "",
3177 let Inst{11-8} = Rt2;
3181 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
3182 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
3183 (ins rGPR:$Rt, addr_offset_none:$addr),
3184 AddrModeNone, 4, NoItinerary,
3185 "strexb", "\t$Rd, $Rt, $addr", "", []>;
3186 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
3187 (ins rGPR:$Rt, addr_offset_none:$addr),
3188 AddrModeNone, 4, NoItinerary,
3189 "strexh", "\t$Rd, $Rt, $addr", "", []>;
3190 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt,
3191 t2addrmode_imm0_1020s4:$addr),
3192 AddrModeNone, 4, NoItinerary,
3193 "strex", "\t$Rd, $Rt, $addr", "",
3198 let Inst{31-27} = 0b11101;
3199 let Inst{26-20} = 0b0000100;
3200 let Inst{19-16} = addr{11-8};
3201 let Inst{15-12} = Rt;
3202 let Inst{11-8} = Rd;
3203 let Inst{7-0} = addr{7-0};
3205 let hasExtraSrcRegAllocReq = 1 in
3206 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
3207 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr),
3208 AddrModeNone, 4, NoItinerary,
3209 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
3212 let Inst{11-8} = Rt2;
3216 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", []>,
3217 Requires<[IsThumb2, HasV7]> {
3218 let Inst{31-16} = 0xf3bf;
3219 let Inst{15-14} = 0b10;
3222 let Inst{11-8} = 0b1111;
3223 let Inst{7-4} = 0b0010;
3224 let Inst{3-0} = 0b1111;
3227 //===----------------------------------------------------------------------===//
3228 // SJLJ Exception handling intrinsics
3229 // eh_sjlj_setjmp() is an instruction sequence to store the return
3230 // address and save #0 in R0 for the non-longjmp case.
3231 // Since by its nature we may be coming from some other function to get
3232 // here, and we're using the stack frame for the containing function to
3233 // save/restore registers, we can't keep anything live in regs across
3234 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
3235 // when we get here from a longjmp(). We force everything out of registers
3236 // except for our own input by listing the relevant registers in Defs. By
3237 // doing so, we also cause the prologue/epilogue code to actively preserve
3238 // all of the callee-saved resgisters, which is exactly what we want.
3239 // $val is a scratch register for our use.
3241 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
3242 Q0, Q1, Q2, Q3, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15],
3243 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3244 usesCustomInserter = 1 in {
3245 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3246 AddrModeNone, 0, NoItinerary, "", "",
3247 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3248 Requires<[IsThumb2, HasVFP2]>;
3252 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
3253 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3254 usesCustomInserter = 1 in {
3255 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3256 AddrModeNone, 0, NoItinerary, "", "",
3257 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3258 Requires<[IsThumb2, NoVFP]>;
3262 //===----------------------------------------------------------------------===//
3263 // Control-Flow Instructions
3266 // FIXME: remove when we have a way to marking a MI with these properties.
3267 // FIXME: Should pc be an implicit operand like PICADD, etc?
3268 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
3269 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
3270 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
3271 reglist:$regs, variable_ops),
3272 4, IIC_iLoad_mBr, [],
3273 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
3274 RegConstraint<"$Rn = $wb">;
3276 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
3277 let isPredicable = 1 in
3278 def t2B : T2I<(outs), (ins uncondbrtarget:$target), IIC_Br,
3280 [(br bb:$target)]> {
3281 let Inst{31-27} = 0b11110;
3282 let Inst{15-14} = 0b10;
3286 let Inst{26} = target{19};
3287 let Inst{11} = target{18};
3288 let Inst{13} = target{17};
3289 let Inst{21-16} = target{16-11};
3290 let Inst{10-0} = target{10-0};
3291 let DecoderMethod = "DecodeT2BInstruction";
3294 let isNotDuplicable = 1, isIndirectBranch = 1 in {
3295 def t2BR_JT : t2PseudoInst<(outs),
3296 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3298 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
3300 // FIXME: Add a non-pc based case that can be predicated.
3301 def t2TBB_JT : t2PseudoInst<(outs),
3302 (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>;
3304 def t2TBH_JT : t2PseudoInst<(outs),
3305 (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>;
3307 def t2TBB : T2I<(outs), (ins addrmode_tbb:$addr), IIC_Br,
3308 "tbb", "\t$addr", []> {
3311 let Inst{31-20} = 0b111010001101;
3312 let Inst{19-16} = Rn;
3313 let Inst{15-5} = 0b11110000000;
3314 let Inst{4} = 0; // B form
3317 let DecoderMethod = "DecodeThumbTableBranch";
3320 def t2TBH : T2I<(outs), (ins addrmode_tbh:$addr), IIC_Br,
3321 "tbh", "\t$addr", []> {
3324 let Inst{31-20} = 0b111010001101;
3325 let Inst{19-16} = Rn;
3326 let Inst{15-5} = 0b11110000000;
3327 let Inst{4} = 1; // H form
3330 let DecoderMethod = "DecodeThumbTableBranch";
3332 } // isNotDuplicable, isIndirectBranch
3334 } // isBranch, isTerminator, isBarrier
3336 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3337 // a two-value operand where a dag node expects ", "two operands. :(
3338 let isBranch = 1, isTerminator = 1 in
3339 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3341 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3342 let Inst{31-27} = 0b11110;
3343 let Inst{15-14} = 0b10;
3347 let Inst{25-22} = p;
3350 let Inst{26} = target{20};
3351 let Inst{11} = target{19};
3352 let Inst{13} = target{18};
3353 let Inst{21-16} = target{17-12};
3354 let Inst{10-0} = target{11-1};
3356 let DecoderMethod = "DecodeThumb2BCCInstruction";
3359 // Tail calls. The IOS version of thumb tail calls uses a t2 branch, so
3361 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3364 def tTAILJMPd: tPseudoExpand<(outs),
3365 (ins uncondbrtarget:$dst, pred:$p),
3367 (t2B uncondbrtarget:$dst, pred:$p)>,
3368 Requires<[IsThumb2, IsIOS]>;
3371 let isCall = 1, Defs = [LR], Uses = [SP] in {
3372 // mov lr, pc; b if callee is marked noreturn to avoid confusing the
3373 // return stack predictor.
3374 def t2BMOVPCB_CALL : tPseudoInst<(outs),
3375 (ins t_bltarget:$func),
3376 6, IIC_Br, [(ARMcall_nolink tglobaladdr:$func)]>,
3377 Requires<[IsThumb]>;
3381 def : T2Pat<(ARMcall_nolink texternalsym:$func),
3382 (t2BMOVPCB_CALL texternalsym:$func)>,
3383 Requires<[IsThumb]>;
3386 let Defs = [ITSTATE] in
3387 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3388 AddrModeNone, 2, IIC_iALUx,
3389 "it$mask\t$cc", "", []> {
3390 // 16-bit instruction.
3391 let Inst{31-16} = 0x0000;
3392 let Inst{15-8} = 0b10111111;
3397 let Inst{3-0} = mask;
3399 let DecoderMethod = "DecodeIT";
3402 // Branch and Exchange Jazelle -- for disassembly only
3404 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func", []> {
3406 let Inst{31-27} = 0b11110;
3408 let Inst{25-20} = 0b111100;
3409 let Inst{19-16} = func;
3410 let Inst{15-0} = 0b1000111100000000;
3413 // Compare and branch on zero / non-zero
3414 let isBranch = 1, isTerminator = 1 in {
3415 def tCBZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3416 "cbz\t$Rn, $target", []>,
3417 T1Misc<{0,0,?,1,?,?,?}>,
3418 Requires<[IsThumb2]> {
3422 let Inst{9} = target{5};
3423 let Inst{7-3} = target{4-0};
3427 def tCBNZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3428 "cbnz\t$Rn, $target", []>,
3429 T1Misc<{1,0,?,1,?,?,?}>,
3430 Requires<[IsThumb2]> {
3434 let Inst{9} = target{5};
3435 let Inst{7-3} = target{4-0};
3441 // Change Processor State is a system instruction.
3442 // FIXME: Since the asm parser has currently no clean way to handle optional
3443 // operands, create 3 versions of the same instruction. Once there's a clean
3444 // framework to represent optional operands, change this behavior.
3445 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3446 !strconcat("cps", asm_op), []> {
3452 let Inst{31-27} = 0b11110;
3454 let Inst{25-20} = 0b111010;
3455 let Inst{19-16} = 0b1111;
3456 let Inst{15-14} = 0b10;
3458 let Inst{10-9} = imod;
3460 let Inst{7-5} = iflags;
3461 let Inst{4-0} = mode;
3462 let DecoderMethod = "DecodeT2CPSInstruction";
3466 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3467 "$imod.w\t$iflags, $mode">;
3468 let mode = 0, M = 0 in
3469 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3470 "$imod.w\t$iflags">;
3471 let imod = 0, iflags = 0, M = 1 in
3472 def t2CPS1p : t2CPS<(ins imm0_31:$mode), "\t$mode">;
3474 // A6.3.4 Branches and miscellaneous control
3475 // Table A6-14 Change Processor State, and hint instructions
3476 def t2HINT : T2I<(outs), (ins imm0_255:$imm), NoItinerary, "hint", "\t$imm",[]>{
3478 let Inst{31-8} = 0b111100111010111110000000;
3479 let Inst{7-0} = imm;
3482 def : t2InstAlias<"hint$p.w $imm", (t2HINT imm0_255:$imm, pred:$p)>;
3483 def : t2InstAlias<"nop$p.w", (t2HINT 0, pred:$p)>;
3484 def : t2InstAlias<"yield$p.w", (t2HINT 1, pred:$p)>;
3485 def : t2InstAlias<"wfe$p.w", (t2HINT 2, pred:$p)>;
3486 def : t2InstAlias<"wfi$p.w", (t2HINT 3, pred:$p)>;
3487 def : t2InstAlias<"sev$p.w", (t2HINT 4, pred:$p)>;
3489 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
3491 let Inst{31-20} = 0b111100111010;
3492 let Inst{19-16} = 0b1111;
3493 let Inst{15-8} = 0b10000000;
3494 let Inst{7-4} = 0b1111;
3495 let Inst{3-0} = opt;
3498 // Secure Monitor Call is a system instruction.
3499 // Option = Inst{19-16}
3500 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt", []> {
3501 let Inst{31-27} = 0b11110;
3502 let Inst{26-20} = 0b1111111;
3503 let Inst{15-12} = 0b1000;
3506 let Inst{19-16} = opt;
3509 class T2SRS<bits<2> Op, bit W, dag oops, dag iops, InstrItinClass itin,
3510 string opc, string asm, list<dag> pattern>
3511 : T2I<oops, iops, itin, opc, asm, pattern> {
3513 let Inst{31-25} = 0b1110100;
3514 let Inst{24-23} = Op;
3517 let Inst{20-16} = 0b01101;
3518 let Inst{15-5} = 0b11000000000;
3519 let Inst{4-0} = mode{4-0};
3522 // Store Return State is a system instruction.
3523 def t2SRSDB_UPD : T2SRS<0b00, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3524 "srsdb", "\tsp!, $mode", []>;
3525 def t2SRSDB : T2SRS<0b00, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3526 "srsdb","\tsp, $mode", []>;
3527 def t2SRSIA_UPD : T2SRS<0b11, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3528 "srsia","\tsp!, $mode", []>;
3529 def t2SRSIA : T2SRS<0b11, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3530 "srsia","\tsp, $mode", []>;
3532 // Return From Exception is a system instruction.
3533 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3534 string opc, string asm, list<dag> pattern>
3535 : T2I<oops, iops, itin, opc, asm, pattern> {
3536 let Inst{31-20} = op31_20{11-0};
3539 let Inst{19-16} = Rn;
3540 let Inst{15-0} = 0xc000;
3543 def t2RFEDBW : T2RFE<0b111010000011,
3544 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3545 [/* For disassembly only; pattern left blank */]>;
3546 def t2RFEDB : T2RFE<0b111010000001,
3547 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3548 [/* For disassembly only; pattern left blank */]>;
3549 def t2RFEIAW : T2RFE<0b111010011011,
3550 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3551 [/* For disassembly only; pattern left blank */]>;
3552 def t2RFEIA : T2RFE<0b111010011001,
3553 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3554 [/* For disassembly only; pattern left blank */]>;
3556 //===----------------------------------------------------------------------===//
3557 // Non-Instruction Patterns
3560 // 32-bit immediate using movw + movt.
3561 // This is a single pseudo instruction to make it re-materializable.
3562 // FIXME: Remove this when we can do generalized remat.
3563 let isReMaterializable = 1, isMoveImm = 1 in
3564 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3565 [(set rGPR:$dst, (i32 imm:$src))]>,
3566 Requires<[IsThumb, HasV6T2]>;
3568 // Pseudo instruction that combines movw + movt + add pc (if pic).
3569 // It also makes it possible to rematerialize the instructions.
3570 // FIXME: Remove this when we can do generalized remat and when machine licm
3571 // can properly the instructions.
3572 let isReMaterializable = 1 in {
3573 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3575 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3576 Requires<[IsThumb2, UseMovt]>;
3578 def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3580 [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3581 Requires<[IsThumb2, UseMovt]>;
3584 // ConstantPool, GlobalAddress, and JumpTable
3585 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3586 Requires<[IsThumb2, DontUseMovt]>;
3587 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3588 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3589 Requires<[IsThumb2, UseMovt]>;
3591 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3592 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3594 // Pseudo instruction that combines ldr from constpool and add pc. This should
3595 // be expanded into two instructions late to allow if-conversion and
3597 let canFoldAsLoad = 1, isReMaterializable = 1 in
3598 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3600 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3602 Requires<[IsThumb2]>;
3604 // Pseudo isntruction that combines movs + predicated rsbmi
3605 // to implement integer ABS
3606 let usesCustomInserter = 1, Defs = [CPSR] in {
3607 def t2ABS : PseudoInst<(outs rGPR:$dst), (ins rGPR:$src),
3608 NoItinerary, []>, Requires<[IsThumb2]>;
3611 //===----------------------------------------------------------------------===//
3612 // Coprocessor load/store -- for disassembly only
3614 class T2CI<bits<4> op31_28, dag oops, dag iops, string opc, string asm>
3615 : T2I<oops, iops, NoItinerary, opc, asm, []> {
3616 let Inst{31-28} = op31_28;
3617 let Inst{27-25} = 0b110;
3620 multiclass t2LdStCop<bits<4> op31_28, bit load, bit Dbit, string asm> {
3621 def _OFFSET : T2CI<op31_28,
3622 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
3623 asm, "\t$cop, $CRd, $addr"> {
3627 let Inst{24} = 1; // P = 1
3628 let Inst{23} = addr{8};
3629 let Inst{22} = Dbit;
3630 let Inst{21} = 0; // W = 0
3631 let Inst{20} = load;
3632 let Inst{19-16} = addr{12-9};
3633 let Inst{15-12} = CRd;
3634 let Inst{11-8} = cop;
3635 let Inst{7-0} = addr{7-0};
3636 let DecoderMethod = "DecodeCopMemInstruction";
3638 def _PRE : T2CI<op31_28,
3639 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
3640 asm, "\t$cop, $CRd, $addr!"> {
3644 let Inst{24} = 1; // P = 1
3645 let Inst{23} = addr{8};
3646 let Inst{22} = Dbit;
3647 let Inst{21} = 1; // W = 1
3648 let Inst{20} = load;
3649 let Inst{19-16} = addr{12-9};
3650 let Inst{15-12} = CRd;
3651 let Inst{11-8} = cop;
3652 let Inst{7-0} = addr{7-0};
3653 let DecoderMethod = "DecodeCopMemInstruction";
3655 def _POST: T2CI<op31_28,
3656 (outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
3657 postidx_imm8s4:$offset),
3658 asm, "\t$cop, $CRd, $addr, $offset"> {
3663 let Inst{24} = 0; // P = 0
3664 let Inst{23} = offset{8};
3665 let Inst{22} = Dbit;
3666 let Inst{21} = 1; // W = 1
3667 let Inst{20} = load;
3668 let Inst{19-16} = addr;
3669 let Inst{15-12} = CRd;
3670 let Inst{11-8} = cop;
3671 let Inst{7-0} = offset{7-0};
3672 let DecoderMethod = "DecodeCopMemInstruction";
3674 def _OPTION : T2CI<op31_28, (outs),
3675 (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
3676 coproc_option_imm:$option),
3677 asm, "\t$cop, $CRd, $addr, $option"> {
3682 let Inst{24} = 0; // P = 0
3683 let Inst{23} = 1; // U = 1
3684 let Inst{22} = Dbit;
3685 let Inst{21} = 0; // W = 0
3686 let Inst{20} = load;
3687 let Inst{19-16} = addr;
3688 let Inst{15-12} = CRd;
3689 let Inst{11-8} = cop;
3690 let Inst{7-0} = option;
3691 let DecoderMethod = "DecodeCopMemInstruction";
3695 defm t2LDC : t2LdStCop<0b1110, 1, 0, "ldc">;
3696 defm t2LDCL : t2LdStCop<0b1110, 1, 1, "ldcl">;
3697 defm t2STC : t2LdStCop<0b1110, 0, 0, "stc">;
3698 defm t2STCL : t2LdStCop<0b1110, 0, 1, "stcl">;
3699 defm t2LDC2 : t2LdStCop<0b1111, 1, 0, "ldc2">;
3700 defm t2LDC2L : t2LdStCop<0b1111, 1, 1, "ldc2l">;
3701 defm t2STC2 : t2LdStCop<0b1111, 0, 0, "stc2">;
3702 defm t2STC2L : t2LdStCop<0b1111, 0, 1, "stc2l">;
3705 //===----------------------------------------------------------------------===//
3706 // Move between special register and ARM core register -- for disassembly only
3708 // Move to ARM core register from Special Register
3712 // A/R class can only move from CPSR or SPSR.
3713 def t2MRS_AR : T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, apsr",
3714 []>, Requires<[IsThumb2,IsARClass]> {
3716 let Inst{31-12} = 0b11110011111011111000;
3717 let Inst{11-8} = Rd;
3718 let Inst{7-0} = 0b0000;
3721 def : t2InstAlias<"mrs${p} $Rd, cpsr", (t2MRS_AR GPR:$Rd, pred:$p)>;
3723 def t2MRSsys_AR: T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3724 []>, Requires<[IsThumb2,IsARClass]> {
3726 let Inst{31-12} = 0b11110011111111111000;
3727 let Inst{11-8} = Rd;
3728 let Inst{7-0} = 0b0000;
3733 // This MRS has a mask field in bits 7-0 and can take more values than
3734 // the A/R class (a full msr_mask).
3735 def t2MRS_M : T2I<(outs rGPR:$Rd), (ins msr_mask:$mask), NoItinerary,
3736 "mrs", "\t$Rd, $mask", []>,
3737 Requires<[IsThumb,IsMClass]> {
3740 let Inst{31-12} = 0b11110011111011111000;
3741 let Inst{11-8} = Rd;
3742 let Inst{19-16} = 0b1111;
3743 let Inst{7-0} = mask;
3747 // Move from ARM core register to Special Register
3751 // No need to have both system and application versions, the encodings are the
3752 // same and the assembly parser has no way to distinguish between them. The mask
3753 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3754 // the mask with the fields to be accessed in the special register.
3755 def t2MSR_AR : T2I<(outs), (ins msr_mask:$mask, rGPR:$Rn),
3756 NoItinerary, "msr", "\t$mask, $Rn", []>,
3757 Requires<[IsThumb2,IsARClass]> {
3760 let Inst{31-21} = 0b11110011100;
3761 let Inst{20} = mask{4}; // R Bit
3762 let Inst{19-16} = Rn;
3763 let Inst{15-12} = 0b1000;
3764 let Inst{11-8} = mask{3-0};
3770 // Move from ARM core register to Special Register
3771 def t2MSR_M : T2I<(outs), (ins msr_mask:$SYSm, rGPR:$Rn),
3772 NoItinerary, "msr", "\t$SYSm, $Rn", []>,
3773 Requires<[IsThumb,IsMClass]> {
3776 let Inst{31-21} = 0b11110011100;
3778 let Inst{19-16} = Rn;
3779 let Inst{15-12} = 0b1000;
3780 let Inst{11-0} = SYSm;
3784 //===----------------------------------------------------------------------===//
3785 // Move between coprocessor and ARM core register
3788 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
3790 : T2Cop<Op, oops, iops,
3791 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3793 let Inst{27-24} = 0b1110;
3794 let Inst{20} = direction;
3804 let Inst{15-12} = Rt;
3805 let Inst{11-8} = cop;
3806 let Inst{23-21} = opc1;
3807 let Inst{7-5} = opc2;
3808 let Inst{3-0} = CRm;
3809 let Inst{19-16} = CRn;
3812 class t2MovRRCopro<bits<4> Op, string opc, bit direction,
3813 list<dag> pattern = []>
3815 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3816 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
3817 let Inst{27-24} = 0b1100;
3818 let Inst{23-21} = 0b010;
3819 let Inst{20} = direction;
3827 let Inst{15-12} = Rt;
3828 let Inst{19-16} = Rt2;
3829 let Inst{11-8} = cop;
3830 let Inst{7-4} = opc1;
3831 let Inst{3-0} = CRm;
3834 /* from ARM core register to coprocessor */
3835 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
3837 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3838 c_imm:$CRm, imm0_7:$opc2),
3839 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3840 imm:$CRm, imm:$opc2)]>;
3841 def : t2InstAlias<"mcr $cop, $opc1, $Rt, $CRn, $CRm",
3842 (t2MCR p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3844 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
3845 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3846 c_imm:$CRm, imm0_7:$opc2),
3847 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3848 imm:$CRm, imm:$opc2)]>;
3849 def : t2InstAlias<"mcr2 $cop, $opc1, $Rt, $CRn, $CRm",
3850 (t2MCR2 p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3853 /* from coprocessor to ARM core register */
3854 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
3855 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3856 c_imm:$CRm, imm0_7:$opc2), []>;
3857 def : t2InstAlias<"mrc $cop, $opc1, $Rt, $CRn, $CRm",
3858 (t2MRC GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3861 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
3862 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3863 c_imm:$CRm, imm0_7:$opc2), []>;
3864 def : t2InstAlias<"mrc2 $cop, $opc1, $Rt, $CRn, $CRm",
3865 (t2MRC2 GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3868 def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3869 (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3871 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3872 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3875 /* from ARM core register to coprocessor */
3876 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0,
3877 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
3879 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0,
3880 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
3881 GPR:$Rt2, imm:$CRm)]>;
3882 /* from coprocessor to ARM core register */
3883 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>;
3885 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1>;
3887 //===----------------------------------------------------------------------===//
3888 // Other Coprocessor Instructions.
3891 def tCDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3892 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3893 "cdp\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3894 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3895 imm:$CRm, imm:$opc2)]> {
3896 let Inst{27-24} = 0b1110;
3905 let Inst{3-0} = CRm;
3907 let Inst{7-5} = opc2;
3908 let Inst{11-8} = cop;
3909 let Inst{15-12} = CRd;
3910 let Inst{19-16} = CRn;
3911 let Inst{23-20} = opc1;
3914 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3915 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3916 "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3917 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3918 imm:$CRm, imm:$opc2)]> {
3919 let Inst{27-24} = 0b1110;
3928 let Inst{3-0} = CRm;
3930 let Inst{7-5} = opc2;
3931 let Inst{11-8} = cop;
3932 let Inst{15-12} = CRd;
3933 let Inst{19-16} = CRn;
3934 let Inst{23-20} = opc1;
3939 //===----------------------------------------------------------------------===//
3940 // Non-Instruction Patterns
3943 // SXT/UXT with no rotate
3944 let AddedComplexity = 16 in {
3945 def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>,
3946 Requires<[IsThumb2]>;
3947 def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>,
3948 Requires<[IsThumb2]>;
3949 def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>,
3950 Requires<[HasT2ExtractPack, IsThumb2]>;
3951 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)),
3952 (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3953 Requires<[HasT2ExtractPack, IsThumb2]>;
3954 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)),
3955 (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3956 Requires<[HasT2ExtractPack, IsThumb2]>;
3959 def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>,
3960 Requires<[IsThumb2]>;
3961 def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>,
3962 Requires<[IsThumb2]>;
3963 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)),
3964 (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3965 Requires<[HasT2ExtractPack, IsThumb2]>;
3966 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)),
3967 (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3968 Requires<[HasT2ExtractPack, IsThumb2]>;
3970 // Atomic load/store patterns
3971 def : T2Pat<(atomic_load_8 t2addrmode_imm12:$addr),
3972 (t2LDRBi12 t2addrmode_imm12:$addr)>;
3973 def : T2Pat<(atomic_load_8 t2addrmode_negimm8:$addr),
3974 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
3975 def : T2Pat<(atomic_load_8 t2addrmode_so_reg:$addr),
3976 (t2LDRBs t2addrmode_so_reg:$addr)>;
3977 def : T2Pat<(atomic_load_16 t2addrmode_imm12:$addr),
3978 (t2LDRHi12 t2addrmode_imm12:$addr)>;
3979 def : T2Pat<(atomic_load_16 t2addrmode_negimm8:$addr),
3980 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
3981 def : T2Pat<(atomic_load_16 t2addrmode_so_reg:$addr),
3982 (t2LDRHs t2addrmode_so_reg:$addr)>;
3983 def : T2Pat<(atomic_load_32 t2addrmode_imm12:$addr),
3984 (t2LDRi12 t2addrmode_imm12:$addr)>;
3985 def : T2Pat<(atomic_load_32 t2addrmode_negimm8:$addr),
3986 (t2LDRi8 t2addrmode_negimm8:$addr)>;
3987 def : T2Pat<(atomic_load_32 t2addrmode_so_reg:$addr),
3988 (t2LDRs t2addrmode_so_reg:$addr)>;
3989 def : T2Pat<(atomic_store_8 t2addrmode_imm12:$addr, GPR:$val),
3990 (t2STRBi12 GPR:$val, t2addrmode_imm12:$addr)>;
3991 def : T2Pat<(atomic_store_8 t2addrmode_negimm8:$addr, GPR:$val),
3992 (t2STRBi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3993 def : T2Pat<(atomic_store_8 t2addrmode_so_reg:$addr, GPR:$val),
3994 (t2STRBs GPR:$val, t2addrmode_so_reg:$addr)>;
3995 def : T2Pat<(atomic_store_16 t2addrmode_imm12:$addr, GPR:$val),
3996 (t2STRHi12 GPR:$val, t2addrmode_imm12:$addr)>;
3997 def : T2Pat<(atomic_store_16 t2addrmode_negimm8:$addr, GPR:$val),
3998 (t2STRHi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3999 def : T2Pat<(atomic_store_16 t2addrmode_so_reg:$addr, GPR:$val),
4000 (t2STRHs GPR:$val, t2addrmode_so_reg:$addr)>;
4001 def : T2Pat<(atomic_store_32 t2addrmode_imm12:$addr, GPR:$val),
4002 (t2STRi12 GPR:$val, t2addrmode_imm12:$addr)>;
4003 def : T2Pat<(atomic_store_32 t2addrmode_negimm8:$addr, GPR:$val),
4004 (t2STRi8 GPR:$val, t2addrmode_negimm8:$addr)>;
4005 def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val),
4006 (t2STRs GPR:$val, t2addrmode_so_reg:$addr)>;
4009 //===----------------------------------------------------------------------===//
4010 // Assembler aliases
4013 // Aliases for ADC without the ".w" optional width specifier.
4014 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm",
4015 (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4016 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm",
4017 (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
4018 pred:$p, cc_out:$s)>;
4020 // Aliases for SBC without the ".w" optional width specifier.
4021 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm",
4022 (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4023 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
4024 (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
4025 pred:$p, cc_out:$s)>;
4027 // Aliases for ADD without the ".w" optional width specifier.
4028 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4029 (t2ADDri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4030 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
4031 (t2ADDri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
4032 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
4033 (t2ADDrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4034 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
4035 (t2ADDrs GPRnopc:$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<"add${s}${p} $Rdn, $imm",
4039 (t2ADDri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4040 def : t2InstAlias<"add${p} $Rdn, $imm",
4041 (t2ADDri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
4042 def : t2InstAlias<"add${s}${p} $Rdn, $Rm",
4043 (t2ADDrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4044 def : t2InstAlias<"add${s}${p} $Rdn, $ShiftedRm",
4045 (t2ADDrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
4046 pred:$p, cc_out:$s)>;
4048 // add w/ negative immediates is just a sub.
4049 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4050 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
4052 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
4053 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4054 def : t2InstAlias<"add${s}${p} $Rdn, $imm",
4055 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4057 def : t2InstAlias<"add${p} $Rdn, $imm",
4058 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4060 def : t2InstAlias<"add${s}${p}.w $Rd, $Rn, $imm",
4061 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
4063 def : t2InstAlias<"addw${p} $Rd, $Rn, $imm",
4064 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4065 def : t2InstAlias<"add${s}${p}.w $Rdn, $imm",
4066 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4068 def : t2InstAlias<"addw${p} $Rdn, $imm",
4069 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4072 // Aliases for SUB without the ".w" optional width specifier.
4073 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm",
4074 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4075 def : t2InstAlias<"sub${p} $Rd, $Rn, $imm",
4076 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
4077 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $Rm",
4078 (t2SUBrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4079 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $ShiftedRm",
4080 (t2SUBrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
4081 pred:$p, cc_out:$s)>;
4082 // ... and with the destination and source register combined.
4083 def : t2InstAlias<"sub${s}${p} $Rdn, $imm",
4084 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4085 def : t2InstAlias<"sub${p} $Rdn, $imm",
4086 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
4087 def : t2InstAlias<"sub${s}${p}.w $Rdn, $Rm",
4088 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4089 def : t2InstAlias<"sub${s}${p} $Rdn, $Rm",
4090 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4091 def : t2InstAlias<"sub${s}${p} $Rdn, $ShiftedRm",
4092 (t2SUBrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
4093 pred:$p, cc_out:$s)>;
4095 // Alias for compares without the ".w" optional width specifier.
4096 def : t2InstAlias<"cmn${p} $Rn, $Rm",
4097 (t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4098 def : t2InstAlias<"teq${p} $Rn, $Rm",
4099 (t2TEQrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4100 def : t2InstAlias<"tst${p} $Rn, $Rm",
4101 (t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4104 def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb, HasDB]>;
4105 def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb, HasDB]>;
4106 def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb, HasDB]>;
4108 // Alias for LDR, LDRB, LDRH, LDRSB, and LDRSH without the ".w" optional
4110 def : t2InstAlias<"ldr${p} $Rt, $addr",
4111 (t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4112 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4113 (t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4114 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4115 (t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4116 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4117 (t2LDRSBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4118 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4119 (t2LDRSHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4121 def : t2InstAlias<"ldr${p} $Rt, $addr",
4122 (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4123 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4124 (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4125 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4126 (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4127 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4128 (t2LDRSBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4129 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4130 (t2LDRSHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4132 def : t2InstAlias<"ldr${p} $Rt, $addr",
4133 (t2LDRpci GPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4134 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4135 (t2LDRBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4136 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4137 (t2LDRHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4138 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4139 (t2LDRSBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4140 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4141 (t2LDRSHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4143 // Alias for MVN with(out) the ".w" optional width specifier.
4144 def : t2InstAlias<"mvn${s}${p}.w $Rd, $imm",
4145 (t2MVNi rGPR:$Rd, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4146 def : t2InstAlias<"mvn${s}${p} $Rd, $Rm",
4147 (t2MVNr rGPR:$Rd, rGPR:$Rm, pred:$p, cc_out:$s)>;
4148 def : t2InstAlias<"mvn${s}${p} $Rd, $ShiftedRm",
4149 (t2MVNs rGPR:$Rd, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>;
4151 // PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT when the
4152 // shift amount is zero (i.e., unspecified).
4153 def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
4154 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
4155 Requires<[HasT2ExtractPack, IsThumb2]>;
4156 def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
4157 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
4158 Requires<[HasT2ExtractPack, IsThumb2]>;
4160 // PUSH/POP aliases for STM/LDM
4161 def : t2InstAlias<"push${p}.w $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
4162 def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
4163 def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4164 def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4166 // STMIA/STMIA_UPD aliases w/o the optional .w suffix
4167 def : t2InstAlias<"stm${p} $Rn, $regs",
4168 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4169 def : t2InstAlias<"stm${p} $Rn!, $regs",
4170 (t2STMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4172 // LDMIA/LDMIA_UPD aliases w/o the optional .w suffix
4173 def : t2InstAlias<"ldm${p} $Rn, $regs",
4174 (t2LDMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4175 def : t2InstAlias<"ldm${p} $Rn!, $regs",
4176 (t2LDMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4178 // STMDB/STMDB_UPD aliases w/ the optional .w suffix
4179 def : t2InstAlias<"stmdb${p}.w $Rn, $regs",
4180 (t2STMDB GPR:$Rn, pred:$p, reglist:$regs)>;
4181 def : t2InstAlias<"stmdb${p}.w $Rn!, $regs",
4182 (t2STMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4184 // LDMDB/LDMDB_UPD aliases w/ the optional .w suffix
4185 def : t2InstAlias<"ldmdb${p}.w $Rn, $regs",
4186 (t2LDMDB GPR:$Rn, pred:$p, reglist:$regs)>;
4187 def : t2InstAlias<"ldmdb${p}.w $Rn!, $regs",
4188 (t2LDMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4190 // Alias for REV/REV16/REVSH without the ".w" optional width specifier.
4191 def : t2InstAlias<"rev${p} $Rd, $Rm", (t2REV rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4192 def : t2InstAlias<"rev16${p} $Rd, $Rm", (t2REV16 rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4193 def : t2InstAlias<"revsh${p} $Rd, $Rm", (t2REVSH rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4196 // Alias for RSB without the ".w" optional width specifier, and with optional
4197 // implied destination register.
4198 def : t2InstAlias<"rsb${s}${p} $Rd, $Rn, $imm",
4199 (t2RSBri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4200 def : t2InstAlias<"rsb${s}${p} $Rdn, $imm",
4201 (t2RSBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4202 def : t2InstAlias<"rsb${s}${p} $Rdn, $Rm",
4203 (t2RSBrr rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4204 def : t2InstAlias<"rsb${s}${p} $Rdn, $ShiftedRm",
4205 (t2RSBrs rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$ShiftedRm, pred:$p,
4208 // SSAT/USAT optional shift operand.
4209 def : t2InstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
4210 (t2SSAT rGPR:$Rd, imm1_32:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
4211 def : t2InstAlias<"usat${p} $Rd, $sat_imm, $Rn",
4212 (t2USAT rGPR:$Rd, imm0_31:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
4214 // STM w/o the .w suffix.
4215 def : t2InstAlias<"stm${p} $Rn, $regs",
4216 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4218 // Alias for STR, STRB, and STRH without the ".w" optional
4220 def : t2InstAlias<"str${p} $Rt, $addr",
4221 (t2STRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4222 def : t2InstAlias<"strb${p} $Rt, $addr",
4223 (t2STRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4224 def : t2InstAlias<"strh${p} $Rt, $addr",
4225 (t2STRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4227 def : t2InstAlias<"str${p} $Rt, $addr",
4228 (t2STRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4229 def : t2InstAlias<"strb${p} $Rt, $addr",
4230 (t2STRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4231 def : t2InstAlias<"strh${p} $Rt, $addr",
4232 (t2STRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4234 // Extend instruction optional rotate operand.
4235 def : t2InstAlias<"sxtab${p} $Rd, $Rn, $Rm",
4236 (t2SXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4237 def : t2InstAlias<"sxtah${p} $Rd, $Rn, $Rm",
4238 (t2SXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4239 def : t2InstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
4240 (t2SXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4242 def : t2InstAlias<"sxtb${p} $Rd, $Rm",
4243 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4244 def : t2InstAlias<"sxtb16${p} $Rd, $Rm",
4245 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4246 def : t2InstAlias<"sxth${p} $Rd, $Rm",
4247 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4248 def : t2InstAlias<"sxtb${p}.w $Rd, $Rm",
4249 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4250 def : t2InstAlias<"sxth${p}.w $Rd, $Rm",
4251 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4253 def : t2InstAlias<"uxtab${p} $Rd, $Rn, $Rm",
4254 (t2UXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4255 def : t2InstAlias<"uxtah${p} $Rd, $Rn, $Rm",
4256 (t2UXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4257 def : t2InstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
4258 (t2UXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4259 def : t2InstAlias<"uxtb${p} $Rd, $Rm",
4260 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4261 def : t2InstAlias<"uxtb16${p} $Rd, $Rm",
4262 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4263 def : t2InstAlias<"uxth${p} $Rd, $Rm",
4264 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4266 def : t2InstAlias<"uxtb${p}.w $Rd, $Rm",
4267 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4268 def : t2InstAlias<"uxth${p}.w $Rd, $Rm",
4269 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4271 // Extend instruction w/o the ".w" optional width specifier.
4272 def : t2InstAlias<"uxtb${p} $Rd, $Rm$rot",
4273 (t2UXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4274 def : t2InstAlias<"uxtb16${p} $Rd, $Rm$rot",
4275 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4276 def : t2InstAlias<"uxth${p} $Rd, $Rm$rot",
4277 (t2UXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4279 def : t2InstAlias<"sxtb${p} $Rd, $Rm$rot",
4280 (t2SXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4281 def : t2InstAlias<"sxtb16${p} $Rd, $Rm$rot",
4282 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4283 def : t2InstAlias<"sxth${p} $Rd, $Rm$rot",
4284 (t2SXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4287 // "mov Rd, t2_so_imm_not" can be handled via "mvn" in assembly, just like
4289 def : t2InstAlias<"mov${p} $Rd, $imm",
4290 (t2MVNi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
4291 def : t2InstAlias<"mvn${p} $Rd, $imm",
4292 (t2MOVi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
4293 // Same for AND <--> BIC
4294 def : t2InstAlias<"bic${s}${p} $Rd, $Rn, $imm",
4295 (t2ANDri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
4296 pred:$p, cc_out:$s)>;
4297 def : t2InstAlias<"bic${s}${p} $Rdn, $imm",
4298 (t2ANDri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
4299 pred:$p, cc_out:$s)>;
4300 def : t2InstAlias<"and${s}${p} $Rd, $Rn, $imm",
4301 (t2BICri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
4302 pred:$p, cc_out:$s)>;
4303 def : t2InstAlias<"and${s}${p} $Rdn, $imm",
4304 (t2BICri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
4305 pred:$p, cc_out:$s)>;
4306 // Likewise, "add Rd, t2_so_imm_neg" -> sub
4307 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4308 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm,
4309 pred:$p, cc_out:$s)>;
4310 def : t2InstAlias<"add${s}${p} $Rd, $imm",
4311 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rd, t2_so_imm_neg:$imm,
4312 pred:$p, cc_out:$s)>;
4313 // Same for CMP <--> CMN via t2_so_imm_neg
4314 def : t2InstAlias<"cmp${p} $Rd, $imm",
4315 (t2CMNri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
4316 def : t2InstAlias<"cmn${p} $Rd, $imm",
4317 (t2CMPri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
4320 // Wide 'mul' encoding can be specified with only two operands.
4321 def : t2InstAlias<"mul${p} $Rn, $Rm",
4322 (t2MUL rGPR:$Rn, rGPR:$Rm, rGPR:$Rn, pred:$p)>;
4324 // "neg" is and alias for "rsb rd, rn, #0"
4325 def : t2InstAlias<"neg${s}${p} $Rd, $Rm",
4326 (t2RSBri rGPR:$Rd, rGPR:$Rm, 0, pred:$p, cc_out:$s)>;
4328 // MOV so_reg assembler pseudos. InstAlias isn't expressive enough for
4329 // these, unfortunately.
4330 def t2MOVsi: t2AsmPseudo<"mov${p} $Rd, $shift",
4331 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
4332 def t2MOVSsi: t2AsmPseudo<"movs${p} $Rd, $shift",
4333 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
4335 def t2MOVsr: t2AsmPseudo<"mov${p} $Rd, $shift",
4336 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
4337 def t2MOVSsr: t2AsmPseudo<"movs${p} $Rd, $shift",
4338 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
4340 // ADR w/o the .w suffix
4341 def : t2InstAlias<"adr${p} $Rd, $addr",
4342 (t2ADR rGPR:$Rd, t2adrlabel:$addr, pred:$p)>;
4344 // LDR(literal) w/ alternate [pc, #imm] syntax.
4345 def t2LDRpcrel : t2AsmPseudo<"ldr${p} $Rt, $addr",
4346 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4347 def t2LDRBpcrel : t2AsmPseudo<"ldrb${p} $Rt, $addr",
4348 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4349 def t2LDRHpcrel : t2AsmPseudo<"ldrh${p} $Rt, $addr",
4350 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4351 def t2LDRSBpcrel : t2AsmPseudo<"ldrsb${p} $Rt, $addr",
4352 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4353 def t2LDRSHpcrel : t2AsmPseudo<"ldrsh${p} $Rt, $addr",
4354 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4355 // Version w/ the .w suffix.
4356 def : t2InstAlias<"ldr${p}.w $Rt, $addr",
4357 (t2LDRpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4358 def : t2InstAlias<"ldrb${p}.w $Rt, $addr",
4359 (t2LDRBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4360 def : t2InstAlias<"ldrh${p}.w $Rt, $addr",
4361 (t2LDRHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4362 def : t2InstAlias<"ldrsb${p}.w $Rt, $addr",
4363 (t2LDRSBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4364 def : t2InstAlias<"ldrsh${p}.w $Rt, $addr",
4365 (t2LDRSHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4367 def : t2InstAlias<"add${p} $Rd, pc, $imm",
4368 (t2ADR rGPR:$Rd, imm0_4095:$imm, pred:$p)>;