1 //===- ARMInstrThumb2.td - Thumb2 support for ARM -------------------------===//
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 // Shifted operands. No register controlled shifts for Thumb2.
32 // Note: We do not support rrx shifted operands yet.
33 def t2_so_reg : Operand<i32>, // reg imm
34 ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
36 let EncoderMethod = "getT2SORegOpValue";
37 let PrintMethod = "printT2SOOperand";
38 let DecoderMethod = "DecodeSORegImmOperand";
39 let ParserMatchClass = ShiftedImmAsmOperand;
40 let MIOperandInfo = (ops rGPR, i32imm);
43 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
44 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
45 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
48 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
49 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
50 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), MVT::i32);
53 // t2_so_imm - Match a 32-bit immediate operand, which is an
54 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
55 // immediate splatted into multiple bytes of the word.
56 def t2_so_imm_asmoperand : AsmOperandClass { let Name = "T2SOImm"; }
57 def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{
58 return ARM_AM::getT2SOImmVal(Imm) != -1;
60 let ParserMatchClass = t2_so_imm_asmoperand;
61 let EncoderMethod = "getT2SOImmOpValue";
62 let DecoderMethod = "DecodeT2SOImm";
65 // t2_so_imm_not - Match an immediate that is a complement
67 def t2_so_imm_not : Operand<i32>,
69 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
70 }], t2_so_imm_not_XFORM>;
72 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
73 def t2_so_imm_neg : Operand<i32>,
75 return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
76 }], t2_so_imm_neg_XFORM>;
78 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
79 def imm0_4095 : Operand<i32>,
81 return Imm >= 0 && Imm < 4096;
84 def imm0_4095_neg : PatLeaf<(i32 imm), [{
85 return (uint32_t)(-N->getZExtValue()) < 4096;
88 def imm0_255_neg : PatLeaf<(i32 imm), [{
89 return (uint32_t)(-N->getZExtValue()) < 255;
92 def imm0_255_not : PatLeaf<(i32 imm), [{
93 return (uint32_t)(~N->getZExtValue()) < 255;
96 def lo5AllOne : PatLeaf<(i32 imm), [{
97 // Returns true if all low 5-bits are 1.
98 return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL;
101 // Define Thumb2 specific addressing modes.
103 // t2addrmode_imm12 := reg + imm12
104 def t2addrmode_imm12_asmoperand : AsmOperandClass {let Name="MemUImm12Offset";}
105 def t2addrmode_imm12 : Operand<i32>,
106 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
107 let PrintMethod = "printAddrModeImm12Operand";
108 let EncoderMethod = "getAddrModeImm12OpValue";
109 let DecoderMethod = "DecodeT2AddrModeImm12";
110 let ParserMatchClass = t2addrmode_imm12_asmoperand;
111 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
114 // t2ldrlabel := imm12
115 def t2ldrlabel : Operand<i32> {
116 let EncoderMethod = "getAddrModeImm12OpValue";
117 let PrintMethod = "printT2LdrLabelOperand";
121 // ADR instruction labels.
122 def t2adrlabel : Operand<i32> {
123 let EncoderMethod = "getT2AdrLabelOpValue";
127 // t2addrmode_posimm8 := reg + imm8
128 def MemPosImm8OffsetAsmOperand : AsmOperandClass {let Name="MemPosImm8Offset";}
129 def t2addrmode_posimm8 : Operand<i32> {
130 let PrintMethod = "printT2AddrModeImm8Operand";
131 let EncoderMethod = "getT2AddrModeImm8OpValue";
132 let DecoderMethod = "DecodeT2AddrModeImm8";
133 let ParserMatchClass = MemPosImm8OffsetAsmOperand;
134 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
137 // t2addrmode_negimm8 := reg - imm8
138 def MemNegImm8OffsetAsmOperand : AsmOperandClass {let Name="MemNegImm8Offset";}
139 def t2addrmode_negimm8 : Operand<i32>,
140 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
141 let PrintMethod = "printT2AddrModeImm8Operand";
142 let EncoderMethod = "getT2AddrModeImm8OpValue";
143 let DecoderMethod = "DecodeT2AddrModeImm8";
144 let ParserMatchClass = MemNegImm8OffsetAsmOperand;
145 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
148 // t2addrmode_imm8 := reg +/- imm8
149 def MemImm8OffsetAsmOperand : AsmOperandClass { let Name = "MemImm8Offset"; }
150 def t2addrmode_imm8 : Operand<i32>,
151 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
152 let PrintMethod = "printT2AddrModeImm8Operand";
153 let EncoderMethod = "getT2AddrModeImm8OpValue";
154 let DecoderMethod = "DecodeT2AddrModeImm8";
155 let ParserMatchClass = MemImm8OffsetAsmOperand;
156 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
159 def t2am_imm8_offset : Operand<i32>,
160 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
161 [], [SDNPWantRoot]> {
162 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
163 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
164 let DecoderMethod = "DecodeT2Imm8";
167 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
168 def MemImm8s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm8s4Offset";}
169 def t2addrmode_imm8s4 : Operand<i32> {
170 let PrintMethod = "printT2AddrModeImm8s4Operand";
171 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
172 let DecoderMethod = "DecodeT2AddrModeImm8s4";
173 let ParserMatchClass = MemImm8s4OffsetAsmOperand;
174 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
177 def t2am_imm8s4_offset_asmoperand : AsmOperandClass { let Name = "Imm8s4"; }
178 def t2am_imm8s4_offset : Operand<i32> {
179 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
180 let EncoderMethod = "getT2Imm8s4OpValue";
181 let DecoderMethod = "DecodeT2Imm8S4";
184 // t2addrmode_imm0_1020s4 := reg + (imm8 << 2)
185 def MemImm0_1020s4OffsetAsmOperand : AsmOperandClass {
186 let Name = "MemImm0_1020s4Offset";
188 def t2addrmode_imm0_1020s4 : Operand<i32> {
189 let PrintMethod = "printT2AddrModeImm0_1020s4Operand";
190 let EncoderMethod = "getT2AddrModeImm0_1020s4OpValue";
191 let DecoderMethod = "DecodeT2AddrModeImm0_1020s4";
192 let ParserMatchClass = MemImm0_1020s4OffsetAsmOperand;
193 let MIOperandInfo = (ops GPRnopc:$base, i32imm:$offsimm);
196 // t2addrmode_so_reg := reg + (reg << imm2)
197 def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";}
198 def t2addrmode_so_reg : Operand<i32>,
199 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
200 let PrintMethod = "printT2AddrModeSoRegOperand";
201 let EncoderMethod = "getT2AddrModeSORegOpValue";
202 let DecoderMethod = "DecodeT2AddrModeSOReg";
203 let ParserMatchClass = t2addrmode_so_reg_asmoperand;
204 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
207 // Addresses for the TBB/TBH instructions.
208 def addrmode_tbb_asmoperand : AsmOperandClass { let Name = "MemTBB"; }
209 def addrmode_tbb : Operand<i32> {
210 let PrintMethod = "printAddrModeTBB";
211 let ParserMatchClass = addrmode_tbb_asmoperand;
212 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
214 def addrmode_tbh_asmoperand : AsmOperandClass { let Name = "MemTBH"; }
215 def addrmode_tbh : Operand<i32> {
216 let PrintMethod = "printAddrModeTBH";
217 let ParserMatchClass = addrmode_tbh_asmoperand;
218 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
221 //===----------------------------------------------------------------------===//
222 // Multiclass helpers...
226 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
227 string opc, string asm, list<dag> pattern>
228 : T2I<oops, iops, itin, opc, asm, pattern> {
233 let Inst{26} = imm{11};
234 let Inst{14-12} = imm{10-8};
235 let Inst{7-0} = imm{7-0};
239 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
240 string opc, string asm, list<dag> pattern>
241 : T2sI<oops, iops, itin, opc, asm, pattern> {
247 let Inst{26} = imm{11};
248 let Inst{14-12} = imm{10-8};
249 let Inst{7-0} = imm{7-0};
252 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
253 string opc, string asm, list<dag> pattern>
254 : T2I<oops, iops, itin, opc, asm, pattern> {
258 let Inst{19-16} = Rn;
259 let Inst{26} = imm{11};
260 let Inst{14-12} = imm{10-8};
261 let Inst{7-0} = imm{7-0};
265 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
266 string opc, string asm, list<dag> pattern>
267 : T2I<oops, iops, itin, opc, asm, pattern> {
272 let Inst{3-0} = ShiftedRm{3-0};
273 let Inst{5-4} = ShiftedRm{6-5};
274 let Inst{14-12} = ShiftedRm{11-9};
275 let Inst{7-6} = ShiftedRm{8-7};
278 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
279 string opc, string asm, list<dag> pattern>
280 : T2sI<oops, iops, itin, opc, asm, pattern> {
285 let Inst{3-0} = ShiftedRm{3-0};
286 let Inst{5-4} = ShiftedRm{6-5};
287 let Inst{14-12} = ShiftedRm{11-9};
288 let Inst{7-6} = ShiftedRm{8-7};
291 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
292 string opc, string asm, list<dag> pattern>
293 : T2I<oops, iops, itin, opc, asm, pattern> {
297 let Inst{19-16} = Rn;
298 let Inst{3-0} = ShiftedRm{3-0};
299 let Inst{5-4} = ShiftedRm{6-5};
300 let Inst{14-12} = ShiftedRm{11-9};
301 let Inst{7-6} = ShiftedRm{8-7};
304 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
305 string opc, string asm, list<dag> pattern>
306 : T2I<oops, iops, itin, opc, asm, pattern> {
314 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
315 string opc, string asm, list<dag> pattern>
316 : T2sI<oops, iops, itin, opc, asm, pattern> {
324 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
325 string opc, string asm, list<dag> pattern>
326 : T2I<oops, iops, itin, opc, asm, pattern> {
330 let Inst{19-16} = Rn;
335 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
336 string opc, string asm, list<dag> pattern>
337 : T2I<oops, iops, itin, opc, asm, pattern> {
343 let Inst{19-16} = Rn;
344 let Inst{26} = imm{11};
345 let Inst{14-12} = imm{10-8};
346 let Inst{7-0} = imm{7-0};
349 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
350 string opc, string asm, list<dag> pattern>
351 : T2sI<oops, iops, itin, opc, asm, pattern> {
357 let Inst{19-16} = Rn;
358 let Inst{26} = imm{11};
359 let Inst{14-12} = imm{10-8};
360 let Inst{7-0} = imm{7-0};
363 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
364 string opc, string asm, list<dag> pattern>
365 : T2I<oops, iops, itin, opc, asm, pattern> {
372 let Inst{14-12} = imm{4-2};
373 let Inst{7-6} = imm{1-0};
376 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
377 string opc, string asm, list<dag> pattern>
378 : T2sI<oops, iops, itin, opc, asm, pattern> {
385 let Inst{14-12} = imm{4-2};
386 let Inst{7-6} = imm{1-0};
389 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
390 string opc, string asm, list<dag> pattern>
391 : T2I<oops, iops, itin, opc, asm, pattern> {
397 let Inst{19-16} = Rn;
401 class T2sThreeReg<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;
413 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
414 string opc, string asm, list<dag> pattern>
415 : T2I<oops, iops, itin, opc, asm, pattern> {
421 let Inst{19-16} = Rn;
422 let Inst{3-0} = ShiftedRm{3-0};
423 let Inst{5-4} = ShiftedRm{6-5};
424 let Inst{14-12} = ShiftedRm{11-9};
425 let Inst{7-6} = ShiftedRm{8-7};
428 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
429 string opc, string asm, list<dag> pattern>
430 : T2sI<oops, iops, itin, opc, asm, pattern> {
436 let Inst{19-16} = Rn;
437 let Inst{3-0} = ShiftedRm{3-0};
438 let Inst{5-4} = ShiftedRm{6-5};
439 let Inst{14-12} = ShiftedRm{11-9};
440 let Inst{7-6} = ShiftedRm{8-7};
443 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
444 string opc, string asm, list<dag> pattern>
445 : T2I<oops, iops, itin, opc, asm, pattern> {
451 let Inst{19-16} = Rn;
452 let Inst{15-12} = Ra;
457 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
458 dag oops, dag iops, InstrItinClass itin,
459 string opc, string asm, list<dag> pattern>
460 : T2I<oops, iops, itin, opc, asm, pattern> {
466 let Inst{31-23} = 0b111110111;
467 let Inst{22-20} = opc22_20;
468 let Inst{19-16} = Rn;
469 let Inst{15-12} = RdLo;
470 let Inst{11-8} = RdHi;
471 let Inst{7-4} = opc7_4;
476 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
477 /// binary operation that produces a value. These are predicable and can be
478 /// changed to modify CPSR.
479 multiclass T2I_bin_irs<bits<4> opcod, string opc,
480 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
481 PatFrag opnode, string baseOpc, bit Commutable = 0,
484 def ri : T2sTwoRegImm<
485 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
486 opc, "\t$Rd, $Rn, $imm",
487 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
488 let Inst{31-27} = 0b11110;
490 let Inst{24-21} = opcod;
494 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
495 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
496 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
497 let isCommutable = Commutable;
498 let Inst{31-27} = 0b11101;
499 let Inst{26-25} = 0b01;
500 let Inst{24-21} = opcod;
501 let Inst{14-12} = 0b000; // imm3
502 let Inst{7-6} = 0b00; // imm2
503 let Inst{5-4} = 0b00; // type
506 def rs : T2sTwoRegShiftedReg<
507 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
508 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
509 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
510 let Inst{31-27} = 0b11101;
511 let Inst{26-25} = 0b01;
512 let Inst{24-21} = opcod;
514 // Assembly aliases for optional destination operand when it's the same
515 // as the source operand.
516 def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
517 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
518 t2_so_imm:$imm, pred:$p,
520 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
521 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
524 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
525 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
526 t2_so_reg:$shift, pred:$p,
530 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
531 // the ".w" suffix to indicate that they are wide.
532 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
533 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
534 PatFrag opnode, string baseOpc, bit Commutable = 0> :
535 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, baseOpc, Commutable, ".w"> {
536 // Assembler aliases w/o the ".w" suffix.
537 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
538 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rd, rGPR:$Rn,
541 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"),
542 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rd, rGPR:$Rn,
543 t2_so_reg:$shift, pred:$p,
546 // and with the optional destination operand, too.
547 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
548 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
551 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"),
552 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
553 t2_so_reg:$shift, pred:$p,
557 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
558 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
559 /// it is equivalent to the T2I_bin_irs counterpart.
560 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
562 def ri : T2sTwoRegImm<
563 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
564 opc, ".w\t$Rd, $Rn, $imm",
565 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
566 let Inst{31-27} = 0b11110;
568 let Inst{24-21} = opcod;
572 def rr : T2sThreeReg<
573 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
574 opc, "\t$Rd, $Rn, $Rm",
575 [/* For disassembly only; pattern left blank */]> {
576 let Inst{31-27} = 0b11101;
577 let Inst{26-25} = 0b01;
578 let Inst{24-21} = opcod;
579 let Inst{14-12} = 0b000; // imm3
580 let Inst{7-6} = 0b00; // imm2
581 let Inst{5-4} = 0b00; // type
584 def rs : T2sTwoRegShiftedReg<
585 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
586 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
587 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
588 let Inst{31-27} = 0b11101;
589 let Inst{26-25} = 0b01;
590 let Inst{24-21} = opcod;
594 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
595 /// instruction modifies the CPSR register.
597 /// These opcodes will be converted to the real non-S opcodes by
598 /// AdjustInstrPostInstrSelection after giving then an optional CPSR operand.
599 let hasPostISelHook = 1, isCodeGenOnly = 1, isPseudo = 1, Defs = [CPSR] in {
600 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
601 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
602 PatFrag opnode, bit Commutable = 0> {
604 def ri : T2sTwoRegImm<
605 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
606 opc, ".w\t$Rd, $Rn, $imm",
607 [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, t2_so_imm:$imm))]>;
609 def rr : T2sThreeReg<
610 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
611 opc, ".w\t$Rd, $Rn, $Rm",
612 [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, rGPR:$Rm))]>;
614 def rs : T2sTwoRegShiftedReg<
615 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
616 opc, ".w\t$Rd, $Rn, $ShiftedRm",
617 [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]>;
621 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
622 /// patterns for a binary operation that produces a value.
623 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
624 bit Commutable = 0> {
626 // The register-immediate version is re-materializable. This is useful
627 // in particular for taking the address of a local.
628 let isReMaterializable = 1 in {
629 def ri : T2sTwoRegImm<
630 (outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
631 opc, ".w\t$Rd, $Rn, $imm",
632 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]> {
633 let Inst{31-27} = 0b11110;
636 let Inst{23-21} = op23_21;
642 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
643 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
644 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
648 let Inst{31-27} = 0b11110;
649 let Inst{26} = imm{11};
650 let Inst{25-24} = 0b10;
651 let Inst{23-21} = op23_21;
652 let Inst{20} = 0; // The S bit.
653 let Inst{19-16} = Rn;
655 let Inst{14-12} = imm{10-8};
657 let Inst{7-0} = imm{7-0};
660 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iALUr,
661 opc, ".w\t$Rd, $Rn, $Rm",
662 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]> {
663 let isCommutable = Commutable;
664 let Inst{31-27} = 0b11101;
665 let Inst{26-25} = 0b01;
667 let Inst{23-21} = op23_21;
668 let Inst{14-12} = 0b000; // imm3
669 let Inst{7-6} = 0b00; // imm2
670 let Inst{5-4} = 0b00; // type
673 def rs : T2sTwoRegShiftedReg<
674 (outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
675 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
676 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]> {
677 let Inst{31-27} = 0b11101;
678 let Inst{26-25} = 0b01;
680 let Inst{23-21} = op23_21;
684 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
685 /// for a binary operation that produces a value and use the carry
686 /// bit. It's not predicable.
687 let Defs = [CPSR], Uses = [CPSR] in {
688 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
689 bit Commutable = 0> {
691 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
692 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
693 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_imm:$imm, CPSR))]>,
694 Requires<[IsThumb2]> {
695 let Inst{31-27} = 0b11110;
697 let Inst{24-21} = opcod;
701 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
702 opc, ".w\t$Rd, $Rn, $Rm",
703 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, rGPR:$Rm, CPSR))]>,
704 Requires<[IsThumb2]> {
705 let isCommutable = Commutable;
706 let Inst{31-27} = 0b11101;
707 let Inst{26-25} = 0b01;
708 let Inst{24-21} = opcod;
709 let Inst{14-12} = 0b000; // imm3
710 let Inst{7-6} = 0b00; // imm2
711 let Inst{5-4} = 0b00; // type
714 def rs : T2sTwoRegShiftedReg<
715 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
716 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
717 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm, CPSR))]>,
718 Requires<[IsThumb2]> {
719 let Inst{31-27} = 0b11101;
720 let Inst{26-25} = 0b01;
721 let Inst{24-21} = opcod;
726 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
727 /// version is not needed since this is only for codegen.
729 /// These opcodes will be converted to the real non-S opcodes by
730 /// AdjustInstrPostInstrSelection after giving then an optional CPSR operand.
731 let hasPostISelHook = 1, isCodeGenOnly = 1, isPseudo = 1, Defs = [CPSR] in {
732 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
734 def ri : T2sTwoRegImm<
735 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
736 opc, ".w\t$Rd, $Rn, $imm",
737 [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm, rGPR:$Rn))]>;
739 def rs : T2sTwoRegShiftedReg<
740 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
741 IIC_iALUsi, opc, "\t$Rd, $Rn, $ShiftedRm",
742 [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]>;
746 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
747 // rotate operation that produces a value.
748 multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, PatFrag opnode,
751 def ri : T2sTwoRegShiftImm<
752 (outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi,
753 opc, ".w\t$Rd, $Rm, $imm",
754 [(set rGPR:$Rd, (opnode rGPR:$Rm, (i32 ty:$imm)))]> {
755 let Inst{31-27} = 0b11101;
756 let Inst{26-21} = 0b010010;
757 let Inst{19-16} = 0b1111; // Rn
758 let Inst{5-4} = opcod;
761 def rr : T2sThreeReg<
762 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
763 opc, ".w\t$Rd, $Rn, $Rm",
764 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
765 let Inst{31-27} = 0b11111;
766 let Inst{26-23} = 0b0100;
767 let Inst{22-21} = opcod;
768 let Inst{15-12} = 0b1111;
769 let Inst{7-4} = 0b0000;
772 // Optional destination register
773 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"),
774 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
777 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"),
778 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
782 // Assembler aliases w/o the ".w" suffix.
783 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"),
784 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rd, rGPR:$Rn,
787 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
788 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rd, rGPR:$Rn,
792 // and with the optional destination operand, too.
793 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"),
794 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
797 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
798 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
803 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
804 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
805 /// a explicit result, only implicitly set CPSR.
806 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
807 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
808 PatFrag opnode, string baseOpc> {
809 let isCompare = 1, Defs = [CPSR] in {
811 def ri : T2OneRegCmpImm<
812 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), iii,
813 opc, ".w\t$Rn, $imm",
814 [(opnode GPRnopc:$Rn, t2_so_imm:$imm)]> {
815 let Inst{31-27} = 0b11110;
817 let Inst{24-21} = opcod;
818 let Inst{20} = 1; // The S bit.
820 let Inst{11-8} = 0b1111; // Rd
823 def rr : T2TwoRegCmp<
824 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), iir,
826 [(opnode GPRnopc:$Rn, rGPR:$Rm)]> {
827 let Inst{31-27} = 0b11101;
828 let Inst{26-25} = 0b01;
829 let Inst{24-21} = opcod;
830 let Inst{20} = 1; // The S bit.
831 let Inst{14-12} = 0b000; // imm3
832 let Inst{11-8} = 0b1111; // Rd
833 let Inst{7-6} = 0b00; // imm2
834 let Inst{5-4} = 0b00; // type
837 def rs : T2OneRegCmpShiftedReg<
838 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), iis,
839 opc, ".w\t$Rn, $ShiftedRm",
840 [(opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]> {
841 let Inst{31-27} = 0b11101;
842 let Inst{26-25} = 0b01;
843 let Inst{24-21} = opcod;
844 let Inst{20} = 1; // The S bit.
845 let Inst{11-8} = 0b1111; // Rd
849 // Assembler aliases w/o the ".w" suffix.
850 // No alias here for 'rr' version as not all instantiations of this
851 // multiclass want one (CMP in particular, does not).
852 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"),
853 (!cast<Instruction>(!strconcat(baseOpc, "ri")) GPRnopc:$Rn,
854 t2_so_imm:$imm, pred:$p)>;
855 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"),
856 (!cast<Instruction>(!strconcat(baseOpc, "rs")) GPRnopc:$Rn,
861 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
862 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
863 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
865 def i12 : T2Ii12<(outs target:$Rt), (ins t2addrmode_imm12:$addr), iii,
866 opc, ".w\t$Rt, $addr",
867 [(set target:$Rt, (opnode t2addrmode_imm12:$addr))]> {
870 let Inst{31-25} = 0b1111100;
871 let Inst{24} = signed;
873 let Inst{22-21} = opcod;
874 let Inst{20} = 1; // load
875 let Inst{19-16} = addr{16-13}; // Rn
876 let Inst{15-12} = Rt;
877 let Inst{11-0} = addr{11-0}; // imm
879 def i8 : T2Ii8 <(outs target:$Rt), (ins t2addrmode_negimm8:$addr), iii,
881 [(set target:$Rt, (opnode t2addrmode_negimm8:$addr))]> {
884 let Inst{31-27} = 0b11111;
885 let Inst{26-25} = 0b00;
886 let Inst{24} = signed;
888 let Inst{22-21} = opcod;
889 let Inst{20} = 1; // load
890 let Inst{19-16} = addr{12-9}; // Rn
891 let Inst{15-12} = Rt;
893 // Offset: index==TRUE, wback==FALSE
894 let Inst{10} = 1; // The P bit.
895 let Inst{9} = addr{8}; // U
896 let Inst{8} = 0; // The W bit.
897 let Inst{7-0} = addr{7-0}; // imm
899 def s : T2Iso <(outs target:$Rt), (ins t2addrmode_so_reg:$addr), iis,
900 opc, ".w\t$Rt, $addr",
901 [(set target:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
902 let Inst{31-27} = 0b11111;
903 let Inst{26-25} = 0b00;
904 let Inst{24} = signed;
906 let Inst{22-21} = opcod;
907 let Inst{20} = 1; // load
908 let Inst{11-6} = 0b000000;
911 let Inst{15-12} = Rt;
914 let Inst{19-16} = addr{9-6}; // Rn
915 let Inst{3-0} = addr{5-2}; // Rm
916 let Inst{5-4} = addr{1-0}; // imm
918 let DecoderMethod = "DecodeT2LoadShift";
921 // FIXME: Is the pci variant actually needed?
922 def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
923 opc, ".w\t$Rt, $addr",
924 [(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
925 let isReMaterializable = 1;
926 let Inst{31-27} = 0b11111;
927 let Inst{26-25} = 0b00;
928 let Inst{24} = signed;
929 let Inst{23} = ?; // add = (U == '1')
930 let Inst{22-21} = opcod;
931 let Inst{20} = 1; // load
932 let Inst{19-16} = 0b1111; // Rn
935 let Inst{15-12} = Rt{3-0};
936 let Inst{11-0} = addr{11-0};
940 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
941 multiclass T2I_st<bits<2> opcod, string opc,
942 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
944 def i12 : T2Ii12<(outs), (ins target:$Rt, t2addrmode_imm12:$addr), iii,
945 opc, ".w\t$Rt, $addr",
946 [(opnode target:$Rt, t2addrmode_imm12:$addr)]> {
947 let Inst{31-27} = 0b11111;
948 let Inst{26-23} = 0b0001;
949 let Inst{22-21} = opcod;
950 let Inst{20} = 0; // !load
953 let Inst{15-12} = Rt;
956 let addr{12} = 1; // add = TRUE
957 let Inst{19-16} = addr{16-13}; // Rn
958 let Inst{23} = addr{12}; // U
959 let Inst{11-0} = addr{11-0}; // imm
961 def i8 : T2Ii8 <(outs), (ins target:$Rt, t2addrmode_negimm8:$addr), iii,
963 [(opnode target:$Rt, t2addrmode_negimm8:$addr)]> {
964 let Inst{31-27} = 0b11111;
965 let Inst{26-23} = 0b0000;
966 let Inst{22-21} = opcod;
967 let Inst{20} = 0; // !load
969 // Offset: index==TRUE, wback==FALSE
970 let Inst{10} = 1; // The P bit.
971 let Inst{8} = 0; // The W bit.
974 let Inst{15-12} = Rt;
977 let Inst{19-16} = addr{12-9}; // Rn
978 let Inst{9} = addr{8}; // U
979 let Inst{7-0} = addr{7-0}; // imm
981 def s : T2Iso <(outs), (ins target:$Rt, t2addrmode_so_reg:$addr), iis,
982 opc, ".w\t$Rt, $addr",
983 [(opnode target:$Rt, t2addrmode_so_reg:$addr)]> {
984 let Inst{31-27} = 0b11111;
985 let Inst{26-23} = 0b0000;
986 let Inst{22-21} = opcod;
987 let Inst{20} = 0; // !load
988 let Inst{11-6} = 0b000000;
991 let Inst{15-12} = Rt;
994 let Inst{19-16} = addr{9-6}; // Rn
995 let Inst{3-0} = addr{5-2}; // Rm
996 let Inst{5-4} = addr{1-0}; // imm
1000 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
1001 /// register and one whose operand is a register rotated by 8/16/24.
1002 class T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode>
1003 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1004 opc, ".w\t$Rd, $Rm$rot",
1005 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1006 Requires<[IsThumb2]> {
1007 let Inst{31-27} = 0b11111;
1008 let Inst{26-23} = 0b0100;
1009 let Inst{22-20} = opcod;
1010 let Inst{19-16} = 0b1111; // Rn
1011 let Inst{15-12} = 0b1111;
1015 let Inst{5-4} = rot{1-0}; // rotate
1018 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
1019 class T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode>
1020 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot),
1021 IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
1022 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1023 Requires<[HasT2ExtractPack, IsThumb2]> {
1025 let Inst{31-27} = 0b11111;
1026 let Inst{26-23} = 0b0100;
1027 let Inst{22-20} = opcod;
1028 let Inst{19-16} = 0b1111; // Rn
1029 let Inst{15-12} = 0b1111;
1031 let Inst{5-4} = rot;
1034 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1036 class T2I_ext_rrot_sxtb16<bits<3> opcod, string opc>
1037 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1038 opc, "\t$Rd, $Rm$rot", []>,
1039 Requires<[IsThumb2, HasT2ExtractPack]> {
1041 let Inst{31-27} = 0b11111;
1042 let Inst{26-23} = 0b0100;
1043 let Inst{22-20} = opcod;
1044 let Inst{19-16} = 0b1111; // Rn
1045 let Inst{15-12} = 0b1111;
1047 let Inst{5-4} = rot;
1050 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1051 /// register and one whose operand is a register rotated by 8/16/24.
1052 class T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode>
1053 : T2ThreeReg<(outs rGPR:$Rd),
1054 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1055 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot",
1056 [(set rGPR:$Rd, (opnode rGPR:$Rn, (rotr rGPR:$Rm,rot_imm:$rot)))]>,
1057 Requires<[HasT2ExtractPack, IsThumb2]> {
1059 let Inst{31-27} = 0b11111;
1060 let Inst{26-23} = 0b0100;
1061 let Inst{22-20} = opcod;
1062 let Inst{15-12} = 0b1111;
1064 let Inst{5-4} = rot;
1067 class T2I_exta_rrot_np<bits<3> opcod, string opc>
1068 : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm,rot_imm:$rot),
1069 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []> {
1071 let Inst{31-27} = 0b11111;
1072 let Inst{26-23} = 0b0100;
1073 let Inst{22-20} = opcod;
1074 let Inst{15-12} = 0b1111;
1076 let Inst{5-4} = rot;
1079 //===----------------------------------------------------------------------===//
1081 //===----------------------------------------------------------------------===//
1083 //===----------------------------------------------------------------------===//
1084 // Miscellaneous Instructions.
1087 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1088 string asm, list<dag> pattern>
1089 : T2XI<oops, iops, itin, asm, pattern> {
1093 let Inst{11-8} = Rd;
1094 let Inst{26} = label{11};
1095 let Inst{14-12} = label{10-8};
1096 let Inst{7-0} = label{7-0};
1099 // LEApcrel - Load a pc-relative address into a register without offending the
1101 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1102 (ins t2adrlabel:$addr, pred:$p),
1103 IIC_iALUi, "adr{$p}.w\t$Rd, $addr", []> {
1104 let Inst{31-27} = 0b11110;
1105 let Inst{25-24} = 0b10;
1106 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1109 let Inst{19-16} = 0b1111; // Rn
1114 let Inst{11-8} = Rd;
1115 let Inst{23} = addr{12};
1116 let Inst{21} = addr{12};
1117 let Inst{26} = addr{11};
1118 let Inst{14-12} = addr{10-8};
1119 let Inst{7-0} = addr{7-0};
1121 let DecoderMethod = "DecodeT2Adr";
1124 let neverHasSideEffects = 1, isReMaterializable = 1 in
1125 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1127 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1128 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1133 //===----------------------------------------------------------------------===//
1134 // Load / store Instructions.
1138 let canFoldAsLoad = 1, isReMaterializable = 1 in
1139 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si, GPR,
1140 UnOpFrag<(load node:$Src)>>;
1142 // Loads with zero extension
1143 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1144 rGPR, UnOpFrag<(zextloadi16 node:$Src)>>;
1145 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1146 rGPR, UnOpFrag<(zextloadi8 node:$Src)>>;
1148 // Loads with sign extension
1149 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1150 rGPR, UnOpFrag<(sextloadi16 node:$Src)>>;
1151 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1152 rGPR, UnOpFrag<(sextloadi8 node:$Src)>>;
1154 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1156 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1157 (ins t2addrmode_imm8s4:$addr),
1158 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", "", []>;
1159 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1161 // zextload i1 -> zextload i8
1162 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1163 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1164 def : T2Pat<(zextloadi1 t2addrmode_negimm8:$addr),
1165 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1166 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1167 (t2LDRBs t2addrmode_so_reg:$addr)>;
1168 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1169 (t2LDRBpci tconstpool:$addr)>;
1171 // extload -> zextload
1172 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1174 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1175 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1176 def : T2Pat<(extloadi1 t2addrmode_negimm8:$addr),
1177 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1178 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1179 (t2LDRBs t2addrmode_so_reg:$addr)>;
1180 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1181 (t2LDRBpci tconstpool:$addr)>;
1183 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1184 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1185 def : T2Pat<(extloadi8 t2addrmode_negimm8:$addr),
1186 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1187 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1188 (t2LDRBs t2addrmode_so_reg:$addr)>;
1189 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1190 (t2LDRBpci tconstpool:$addr)>;
1192 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1193 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1194 def : T2Pat<(extloadi16 t2addrmode_negimm8:$addr),
1195 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
1196 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1197 (t2LDRHs t2addrmode_so_reg:$addr)>;
1198 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1199 (t2LDRHpci tconstpool:$addr)>;
1201 // FIXME: The destination register of the loads and stores can't be PC, but
1202 // can be SP. We need another regclass (similar to rGPR) to represent
1203 // that. Not a pressing issue since these are selected manually,
1208 let mayLoad = 1, neverHasSideEffects = 1 in {
1209 def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1210 (ins t2addrmode_imm8:$addr),
1211 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1212 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1214 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1217 def t2LDR_POST : T2Ipostldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1218 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1219 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1220 "ldr", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1222 def t2LDRB_PRE : T2Ipreldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1223 (ins t2addrmode_imm8:$addr),
1224 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1225 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1227 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1229 def t2LDRB_POST : T2Ipostldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1230 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1231 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1232 "ldrb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1234 def t2LDRH_PRE : T2Ipreldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1235 (ins t2addrmode_imm8:$addr),
1236 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1237 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1239 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1241 def t2LDRH_POST : T2Ipostldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1242 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1243 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1244 "ldrh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1246 def t2LDRSB_PRE : T2Ipreldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1247 (ins t2addrmode_imm8:$addr),
1248 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1249 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1251 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1253 def t2LDRSB_POST : T2Ipostldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1254 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1255 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1256 "ldrsb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1258 def t2LDRSH_PRE : T2Ipreldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1259 (ins t2addrmode_imm8:$addr),
1260 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1261 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1263 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1265 def t2LDRSH_POST : T2Ipostldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1266 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1267 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1268 "ldrsh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1269 } // mayLoad = 1, neverHasSideEffects = 1
1271 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110).
1272 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1273 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1274 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_posimm8:$addr), ii, opc,
1275 "\t$Rt, $addr", []> {
1278 let Inst{31-27} = 0b11111;
1279 let Inst{26-25} = 0b00;
1280 let Inst{24} = signed;
1282 let Inst{22-21} = type;
1283 let Inst{20} = 1; // load
1284 let Inst{19-16} = addr{12-9};
1285 let Inst{15-12} = Rt;
1287 let Inst{10-8} = 0b110; // PUW.
1288 let Inst{7-0} = addr{7-0};
1291 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1292 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1293 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1294 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1295 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1298 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si, GPR,
1299 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1300 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1301 rGPR, BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1302 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1303 rGPR, BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1306 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1307 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1308 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1309 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", "", []>;
1312 def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
1313 (ins rGPR:$Rt, t2addrmode_imm8:$addr),
1314 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1315 "str", "\t$Rt, $addr!",
1316 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1317 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1319 def t2STRH_PRE : T2Ipreldst<0, 0b01, 0, 1, (outs GPRnopc:$Rn_wb),
1320 (ins rGPR:$Rt, t2addrmode_imm8:$addr),
1321 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1322 "strh", "\t$Rt, $addr!",
1323 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1324 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1327 def t2STRB_PRE : T2Ipreldst<0, 0b00, 0, 1, (outs GPRnopc:$Rn_wb),
1328 (ins rGPR:$Rt, t2addrmode_imm8:$addr),
1329 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1330 "strb", "\t$Rt, $addr!",
1331 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1332 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1335 def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
1336 (ins rGPR:$Rt, addr_offset_none:$Rn,
1337 t2am_imm8_offset:$offset),
1338 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1339 "str", "\t$Rt, $Rn$offset",
1340 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1341 [(set GPRnopc:$Rn_wb,
1342 (post_store rGPR:$Rt, addr_offset_none:$Rn,
1343 t2am_imm8_offset:$offset))]>;
1345 def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb),
1346 (ins rGPR:$Rt, addr_offset_none:$Rn,
1347 t2am_imm8_offset:$offset),
1348 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1349 "strh", "\t$Rt, $Rn$offset",
1350 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1351 [(set GPRnopc:$Rn_wb,
1352 (post_truncsti16 rGPR:$Rt, addr_offset_none:$Rn,
1353 t2am_imm8_offset:$offset))]>;
1355 def t2STRB_POST : T2Ipostldst<0, 0b00, 0, 0, (outs GPRnopc:$Rn_wb),
1356 (ins rGPR:$Rt, addr_offset_none:$Rn,
1357 t2am_imm8_offset:$offset),
1358 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1359 "strb", "\t$Rt, $Rn$offset",
1360 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1361 [(set GPRnopc:$Rn_wb,
1362 (post_truncsti8 rGPR:$Rt, addr_offset_none:$Rn,
1363 t2am_imm8_offset:$offset))]>;
1365 // Pseudo-instructions for pattern matching the pre-indexed stores. We can't
1366 // put the patterns on the instruction definitions directly as ISel wants
1367 // the address base and offset to be separate operands, not a single
1368 // complex operand like we represent the instructions themselves. The
1369 // pseudos map between the two.
1370 let usesCustomInserter = 1,
1371 Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in {
1372 def t2STR_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1373 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1375 [(set GPRnopc:$Rn_wb,
1376 (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1377 def t2STRB_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1378 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1380 [(set GPRnopc:$Rn_wb,
1381 (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1382 def t2STRH_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1383 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1385 [(set GPRnopc:$Rn_wb,
1386 (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1390 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1392 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1393 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1394 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1395 "\t$Rt, $addr", []> {
1396 let Inst{31-27} = 0b11111;
1397 let Inst{26-25} = 0b00;
1398 let Inst{24} = 0; // not signed
1400 let Inst{22-21} = type;
1401 let Inst{20} = 0; // store
1403 let Inst{10-8} = 0b110; // PUW
1407 let Inst{15-12} = Rt;
1408 let Inst{19-16} = addr{12-9};
1409 let Inst{7-0} = addr{7-0};
1412 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1413 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1414 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1416 // ldrd / strd pre / post variants
1417 // For disassembly only.
1419 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1420 (ins t2addrmode_imm8s4:$addr), IIC_iLoad_d_ru,
1421 "ldrd", "\t$Rt, $Rt2, $addr!", "$addr.base = $wb", []> {
1422 let AsmMatchConverter = "cvtT2LdrdPre";
1423 let DecoderMethod = "DecodeT2LDRDPreInstruction";
1426 def t2LDRD_POST : T2Ii8s4post<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1427 (ins addr_offset_none:$addr, t2am_imm8s4_offset:$imm),
1428 IIC_iLoad_d_ru, "ldrd", "\t$Rt, $Rt2, $addr$imm",
1429 "$addr.base = $wb", []>;
1431 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs GPR:$wb),
1432 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4:$addr),
1433 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr!",
1434 "$addr.base = $wb", []> {
1435 let AsmMatchConverter = "cvtT2StrdPre";
1436 let DecoderMethod = "DecodeT2STRDPreInstruction";
1439 def t2STRD_POST : T2Ii8s4post<0, 1, 0, (outs GPR:$wb),
1440 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr,
1441 t2am_imm8s4_offset:$imm),
1442 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr$imm",
1443 "$addr.base = $wb", []>;
1445 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1446 // data/instruction access. These are for disassembly only.
1447 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1448 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1449 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1451 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1453 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1454 let Inst{31-25} = 0b1111100;
1455 let Inst{24} = instr;
1457 let Inst{21} = write;
1459 let Inst{15-12} = 0b1111;
1462 let addr{12} = 1; // add = TRUE
1463 let Inst{19-16} = addr{16-13}; // Rn
1464 let Inst{23} = addr{12}; // U
1465 let Inst{11-0} = addr{11-0}; // imm12
1468 def i8 : T2Ii8<(outs), (ins t2addrmode_negimm8:$addr), IIC_Preload, opc,
1470 [(ARMPreload t2addrmode_negimm8:$addr, (i32 write), (i32 instr))]> {
1471 let Inst{31-25} = 0b1111100;
1472 let Inst{24} = instr;
1473 let Inst{23} = 0; // U = 0
1475 let Inst{21} = write;
1477 let Inst{15-12} = 0b1111;
1478 let Inst{11-8} = 0b1100;
1481 let Inst{19-16} = addr{12-9}; // Rn
1482 let Inst{7-0} = addr{7-0}; // imm8
1485 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1487 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1488 let Inst{31-25} = 0b1111100;
1489 let Inst{24} = instr;
1490 let Inst{23} = 0; // add = TRUE for T1
1492 let Inst{21} = write;
1494 let Inst{15-12} = 0b1111;
1495 let Inst{11-6} = 0000000;
1498 let Inst{19-16} = addr{9-6}; // Rn
1499 let Inst{3-0} = addr{5-2}; // Rm
1500 let Inst{5-4} = addr{1-0}; // imm2
1502 let DecoderMethod = "DecodeT2LoadShift";
1506 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1507 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1508 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1510 //===----------------------------------------------------------------------===//
1511 // Load / store multiple Instructions.
1514 multiclass thumb2_ld_mult<string asm, InstrItinClass itin,
1515 InstrItinClass itin_upd, bit L_bit> {
1517 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1518 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1522 let Inst{31-27} = 0b11101;
1523 let Inst{26-25} = 0b00;
1524 let Inst{24-23} = 0b01; // Increment After
1526 let Inst{21} = 0; // No writeback
1527 let Inst{20} = L_bit;
1528 let Inst{19-16} = Rn;
1530 let Inst{14-0} = regs{14-0};
1533 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1534 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1538 let Inst{31-27} = 0b11101;
1539 let Inst{26-25} = 0b00;
1540 let Inst{24-23} = 0b01; // Increment After
1542 let Inst{21} = 1; // Writeback
1543 let Inst{20} = L_bit;
1544 let Inst{19-16} = Rn;
1546 let Inst{14-0} = regs{14-0};
1549 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1550 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1554 let Inst{31-27} = 0b11101;
1555 let Inst{26-25} = 0b00;
1556 let Inst{24-23} = 0b10; // Decrement Before
1558 let Inst{21} = 0; // No writeback
1559 let Inst{20} = L_bit;
1560 let Inst{19-16} = Rn;
1562 let Inst{14-0} = regs{14-0};
1565 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1566 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1570 let Inst{31-27} = 0b11101;
1571 let Inst{26-25} = 0b00;
1572 let Inst{24-23} = 0b10; // Decrement Before
1574 let Inst{21} = 1; // Writeback
1575 let Inst{20} = L_bit;
1576 let Inst{19-16} = Rn;
1578 let Inst{14-0} = regs{14-0};
1582 let neverHasSideEffects = 1 in {
1584 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1585 defm t2LDM : thumb2_ld_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1587 multiclass thumb2_st_mult<string asm, InstrItinClass itin,
1588 InstrItinClass itin_upd, bit L_bit> {
1590 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1591 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1595 let Inst{31-27} = 0b11101;
1596 let Inst{26-25} = 0b00;
1597 let Inst{24-23} = 0b01; // Increment After
1599 let Inst{21} = 0; // No writeback
1600 let Inst{20} = L_bit;
1601 let Inst{19-16} = Rn;
1603 let Inst{14} = regs{14};
1605 let Inst{12-0} = regs{12-0};
1608 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1609 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1613 let Inst{31-27} = 0b11101;
1614 let Inst{26-25} = 0b00;
1615 let Inst{24-23} = 0b01; // Increment After
1617 let Inst{21} = 1; // Writeback
1618 let Inst{20} = L_bit;
1619 let Inst{19-16} = Rn;
1621 let Inst{14} = regs{14};
1623 let Inst{12-0} = regs{12-0};
1626 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1627 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1631 let Inst{31-27} = 0b11101;
1632 let Inst{26-25} = 0b00;
1633 let Inst{24-23} = 0b10; // Decrement Before
1635 let Inst{21} = 0; // No writeback
1636 let Inst{20} = L_bit;
1637 let Inst{19-16} = Rn;
1639 let Inst{14} = regs{14};
1641 let Inst{12-0} = regs{12-0};
1644 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1645 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1649 let Inst{31-27} = 0b11101;
1650 let Inst{26-25} = 0b00;
1651 let Inst{24-23} = 0b10; // Decrement Before
1653 let Inst{21} = 1; // Writeback
1654 let Inst{20} = L_bit;
1655 let Inst{19-16} = Rn;
1657 let Inst{14} = regs{14};
1659 let Inst{12-0} = regs{12-0};
1664 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1665 defm t2STM : thumb2_st_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1667 } // neverHasSideEffects
1670 //===----------------------------------------------------------------------===//
1671 // Move Instructions.
1674 let neverHasSideEffects = 1 in
1675 def t2MOVr : T2sTwoReg<(outs GPRnopc:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1676 "mov", ".w\t$Rd, $Rm", []> {
1677 let Inst{31-27} = 0b11101;
1678 let Inst{26-25} = 0b01;
1679 let Inst{24-21} = 0b0010;
1680 let Inst{19-16} = 0b1111; // Rn
1681 let Inst{14-12} = 0b000;
1682 let Inst{7-4} = 0b0000;
1684 def : t2InstAlias<"movs${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1686 def : t2InstAlias<"movs${p} $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1689 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1690 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1691 AddedComplexity = 1 in
1692 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1693 "mov", ".w\t$Rd, $imm",
1694 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1695 let Inst{31-27} = 0b11110;
1697 let Inst{24-21} = 0b0010;
1698 let Inst{19-16} = 0b1111; // Rn
1702 // cc_out is handled as part of the explicit mnemonic in the parser for 'mov'.
1703 // Use aliases to get that to play nice here.
1704 def : t2InstAlias<"movs${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1706 def : t2InstAlias<"movs${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1709 def : t2InstAlias<"mov${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1710 pred:$p, zero_reg)>;
1711 def : t2InstAlias<"mov${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1712 pred:$p, zero_reg)>;
1714 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1715 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
1716 "movw", "\t$Rd, $imm",
1717 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1718 let Inst{31-27} = 0b11110;
1720 let Inst{24-21} = 0b0010;
1721 let Inst{20} = 0; // The S bit.
1727 let Inst{11-8} = Rd;
1728 let Inst{19-16} = imm{15-12};
1729 let Inst{26} = imm{11};
1730 let Inst{14-12} = imm{10-8};
1731 let Inst{7-0} = imm{7-0};
1734 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1735 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1737 let Constraints = "$src = $Rd" in {
1738 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1739 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
1740 "movt", "\t$Rd, $imm",
1742 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1743 let Inst{31-27} = 0b11110;
1745 let Inst{24-21} = 0b0110;
1746 let Inst{20} = 0; // The S bit.
1752 let Inst{11-8} = Rd;
1753 let Inst{19-16} = imm{15-12};
1754 let Inst{26} = imm{11};
1755 let Inst{14-12} = imm{10-8};
1756 let Inst{7-0} = imm{7-0};
1759 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1760 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1763 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1765 //===----------------------------------------------------------------------===//
1766 // Extend Instructions.
1771 def t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1772 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1773 def t2SXTH : T2I_ext_rrot<0b000, "sxth",
1774 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1775 def t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1777 def t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1778 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1779 def t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1780 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1781 def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
1785 let AddedComplexity = 16 in {
1786 def t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1787 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1788 def t2UXTH : T2I_ext_rrot<0b001, "uxth",
1789 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1790 def t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1791 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1793 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1794 // The transformation should probably be done as a combiner action
1795 // instead so we can include a check for masking back in the upper
1796 // eight bits of the source into the lower eight bits of the result.
1797 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1798 // (t2UXTB16 rGPR:$Src, 3)>,
1799 // Requires<[HasT2ExtractPack, IsThumb2]>;
1800 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1801 (t2UXTB16 rGPR:$Src, 1)>,
1802 Requires<[HasT2ExtractPack, IsThumb2]>;
1804 def t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1805 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1806 def t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1807 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1808 def t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">;
1811 //===----------------------------------------------------------------------===//
1812 // Arithmetic Instructions.
1815 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1816 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1817 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1818 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1820 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1822 // Currently, t2ADDS/t2SUBS are pseudo opcodes that exist only in the
1823 // selection DAG. They are "lowered" to real t2ADD/t2SUB opcodes by
1824 // AdjustInstrPostInstrSelection where we determine whether or not to
1825 // set the "s" bit based on CPSR liveness.
1827 // FIXME: Eliminate t2ADDS/t2SUBS pseudo opcodes after adding tablegen
1828 // support for an optional CPSR definition that corresponds to the DAG
1829 // node's second value. We can then eliminate the implicit def of CPSR.
1830 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1831 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1832 BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>;
1833 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1834 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1835 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1837 let hasPostISelHook = 1 in {
1838 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1839 BinOpWithFlagFrag<(ARMadde node:$LHS, node:$RHS, node:$FLAG)>, 1>;
1840 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1841 BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>>;
1845 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1846 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1848 // FIXME: Eliminate them if we can write def : Pat patterns which defines
1849 // CPSR and the implicit def of CPSR is not needed.
1850 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1851 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1853 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1854 // The assume-no-carry-in form uses the negation of the input since add/sub
1855 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1856 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1858 // The AddedComplexity preferences the first variant over the others since
1859 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1860 let AddedComplexity = 1 in
1861 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1862 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1863 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1864 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1865 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1866 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1867 let AddedComplexity = 1 in
1868 def : T2Pat<(ARMaddc rGPR:$src, imm0_255_neg:$imm),
1869 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1870 def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm),
1871 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1872 // The with-carry-in form matches bitwise not instead of the negation.
1873 // Effectively, the inverse interpretation of the carry flag already accounts
1874 // for part of the negation.
1875 let AddedComplexity = 1 in
1876 def : T2Pat<(ARMadde rGPR:$src, imm0_255_not:$imm, CPSR),
1877 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
1878 def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR),
1879 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
1881 // Select Bytes -- for disassembly only
1883 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1884 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []>,
1885 Requires<[IsThumb2, HasThumb2DSP]> {
1886 let Inst{31-27} = 0b11111;
1887 let Inst{26-24} = 0b010;
1889 let Inst{22-20} = 0b010;
1890 let Inst{15-12} = 0b1111;
1892 let Inst{6-4} = 0b000;
1895 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1896 // And Miscellaneous operations -- for disassembly only
1897 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1898 list<dag> pat = [/* For disassembly only; pattern left blank */],
1899 dag iops = (ins rGPR:$Rn, rGPR:$Rm),
1900 string asm = "\t$Rd, $Rn, $Rm">
1901 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
1902 Requires<[IsThumb2, HasThumb2DSP]> {
1903 let Inst{31-27} = 0b11111;
1904 let Inst{26-23} = 0b0101;
1905 let Inst{22-20} = op22_20;
1906 let Inst{15-12} = 0b1111;
1907 let Inst{7-4} = op7_4;
1913 let Inst{11-8} = Rd;
1914 let Inst{19-16} = Rn;
1918 // Saturating add/subtract -- for disassembly only
1920 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1921 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))],
1922 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1923 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1924 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1925 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1926 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [],
1927 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1928 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [],
1929 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1930 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1931 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1932 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))],
1933 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1934 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1935 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1936 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1937 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1938 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1939 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1940 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1941 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1943 // Signed/Unsigned add/subtract -- for disassembly only
1945 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1946 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1947 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1948 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1949 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1950 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1951 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1952 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1953 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1954 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1955 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1956 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1958 // Signed/Unsigned halving add/subtract -- for disassembly only
1960 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1961 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1962 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1963 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1964 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1965 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1966 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1967 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1968 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1969 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1970 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1971 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1973 // Helper class for disassembly only
1974 // A6.3.16 & A6.3.17
1975 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1976 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1977 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1978 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1979 let Inst{31-27} = 0b11111;
1980 let Inst{26-24} = 0b011;
1981 let Inst{23} = long;
1982 let Inst{22-20} = op22_20;
1983 let Inst{7-4} = op7_4;
1986 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1987 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1988 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1989 let Inst{31-27} = 0b11111;
1990 let Inst{26-24} = 0b011;
1991 let Inst{23} = long;
1992 let Inst{22-20} = op22_20;
1993 let Inst{7-4} = op7_4;
1996 // Unsigned Sum of Absolute Differences [and Accumulate].
1997 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1998 (ins rGPR:$Rn, rGPR:$Rm),
1999 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>,
2000 Requires<[IsThumb2, HasThumb2DSP]> {
2001 let Inst{15-12} = 0b1111;
2003 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2004 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
2005 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>,
2006 Requires<[IsThumb2, HasThumb2DSP]>;
2008 // Signed/Unsigned saturate.
2009 class T2SatI<dag oops, dag iops, InstrItinClass itin,
2010 string opc, string asm, list<dag> pattern>
2011 : T2I<oops, iops, itin, opc, asm, pattern> {
2017 let Inst{11-8} = Rd;
2018 let Inst{19-16} = Rn;
2019 let Inst{4-0} = sat_imm;
2020 let Inst{21} = sh{5};
2021 let Inst{14-12} = sh{4-2};
2022 let Inst{7-6} = sh{1-0};
2026 (outs rGPR:$Rd), (ins imm1_32:$sat_imm, rGPR:$Rn, shift_imm:$sh),
2027 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2028 let Inst{31-27} = 0b11110;
2029 let Inst{25-22} = 0b1100;
2035 def t2SSAT16: T2SatI<
2036 (outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary,
2037 "ssat16", "\t$Rd, $sat_imm, $Rn", []>,
2038 Requires<[IsThumb2, HasThumb2DSP]> {
2039 let Inst{31-27} = 0b11110;
2040 let Inst{25-22} = 0b1100;
2043 let Inst{21} = 1; // sh = '1'
2044 let Inst{14-12} = 0b000; // imm3 = '000'
2045 let Inst{7-6} = 0b00; // imm2 = '00'
2046 let Inst{5-4} = 0b00;
2050 (outs rGPR:$Rd), (ins imm0_31:$sat_imm, rGPR:$Rn, shift_imm:$sh),
2051 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2052 let Inst{31-27} = 0b11110;
2053 let Inst{25-22} = 0b1110;
2058 def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins imm0_15:$sat_imm, rGPR:$Rn),
2060 "usat16", "\t$Rd, $sat_imm, $Rn", []>,
2061 Requires<[IsThumb2, HasThumb2DSP]> {
2062 let Inst{31-22} = 0b1111001110;
2065 let Inst{21} = 1; // sh = '1'
2066 let Inst{14-12} = 0b000; // imm3 = '000'
2067 let Inst{7-6} = 0b00; // imm2 = '00'
2068 let Inst{5-4} = 0b00;
2071 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2072 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2074 //===----------------------------------------------------------------------===//
2075 // Shift and rotate Instructions.
2078 defm t2LSL : T2I_sh_ir<0b00, "lsl", imm0_31,
2079 BinOpFrag<(shl node:$LHS, node:$RHS)>, "t2LSL">;
2080 defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr,
2081 BinOpFrag<(srl node:$LHS, node:$RHS)>, "t2LSR">;
2082 defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr,
2083 BinOpFrag<(sra node:$LHS, node:$RHS)>, "t2ASR">;
2084 defm t2ROR : T2I_sh_ir<0b11, "ror", imm0_31,
2085 BinOpFrag<(rotr node:$LHS, node:$RHS)>, "t2ROR">;
2087 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
2088 def : Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
2089 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
2091 let Uses = [CPSR] in {
2092 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2093 "rrx", "\t$Rd, $Rm",
2094 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2095 let Inst{31-27} = 0b11101;
2096 let Inst{26-25} = 0b01;
2097 let Inst{24-21} = 0b0010;
2098 let Inst{19-16} = 0b1111; // Rn
2099 let Inst{14-12} = 0b000;
2100 let Inst{7-4} = 0b0011;
2104 let isCodeGenOnly = 1, Defs = [CPSR] in {
2105 def t2MOVsrl_flag : T2TwoRegShiftImm<
2106 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2107 "lsrs", ".w\t$Rd, $Rm, #1",
2108 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2109 let Inst{31-27} = 0b11101;
2110 let Inst{26-25} = 0b01;
2111 let Inst{24-21} = 0b0010;
2112 let Inst{20} = 1; // The S bit.
2113 let Inst{19-16} = 0b1111; // Rn
2114 let Inst{5-4} = 0b01; // Shift type.
2115 // Shift amount = Inst{14-12:7-6} = 1.
2116 let Inst{14-12} = 0b000;
2117 let Inst{7-6} = 0b01;
2119 def t2MOVsra_flag : T2TwoRegShiftImm<
2120 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2121 "asrs", ".w\t$Rd, $Rm, #1",
2122 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2123 let Inst{31-27} = 0b11101;
2124 let Inst{26-25} = 0b01;
2125 let Inst{24-21} = 0b0010;
2126 let Inst{20} = 1; // The S bit.
2127 let Inst{19-16} = 0b1111; // Rn
2128 let Inst{5-4} = 0b10; // Shift type.
2129 // Shift amount = Inst{14-12:7-6} = 1.
2130 let Inst{14-12} = 0b000;
2131 let Inst{7-6} = 0b01;
2135 //===----------------------------------------------------------------------===//
2136 // Bitwise Instructions.
2139 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2140 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2141 BinOpFrag<(and node:$LHS, node:$RHS)>, "t2AND", 1>;
2142 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2143 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2144 BinOpFrag<(or node:$LHS, node:$RHS)>, "t2ORR", 1>;
2145 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2146 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2147 BinOpFrag<(xor node:$LHS, node:$RHS)>, "t2EOR", 1>;
2149 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2150 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2151 BinOpFrag<(and node:$LHS, (not node:$RHS))>,
2154 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2155 string opc, string asm, list<dag> pattern>
2156 : T2I<oops, iops, itin, opc, asm, pattern> {
2161 let Inst{11-8} = Rd;
2162 let Inst{4-0} = msb{4-0};
2163 let Inst{14-12} = lsb{4-2};
2164 let Inst{7-6} = lsb{1-0};
2167 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2168 string opc, string asm, list<dag> pattern>
2169 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2172 let Inst{19-16} = Rn;
2175 let Constraints = "$src = $Rd" in
2176 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2177 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2178 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2179 let Inst{31-27} = 0b11110;
2180 let Inst{26} = 0; // should be 0.
2182 let Inst{24-20} = 0b10110;
2183 let Inst{19-16} = 0b1111; // Rn
2185 let Inst{5} = 0; // should be 0.
2188 let msb{4-0} = imm{9-5};
2189 let lsb{4-0} = imm{4-0};
2192 def t2SBFX: T2TwoRegBitFI<
2193 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2194 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2195 let Inst{31-27} = 0b11110;
2197 let Inst{24-20} = 0b10100;
2201 def t2UBFX: T2TwoRegBitFI<
2202 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2203 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2204 let Inst{31-27} = 0b11110;
2206 let Inst{24-20} = 0b11100;
2210 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2211 let Constraints = "$src = $Rd" in {
2212 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2213 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2214 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2215 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2216 bf_inv_mask_imm:$imm))]> {
2217 let Inst{31-27} = 0b11110;
2218 let Inst{26} = 0; // should be 0.
2220 let Inst{24-20} = 0b10110;
2222 let Inst{5} = 0; // should be 0.
2225 let msb{4-0} = imm{9-5};
2226 let lsb{4-0} = imm{4-0};
2230 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2231 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2232 BinOpFrag<(or node:$LHS, (not node:$RHS))>,
2235 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
2236 /// unary operation that produces a value. These are predicable and can be
2237 /// changed to modify CPSR.
2238 multiclass T2I_un_irs<bits<4> opcod, string opc,
2239 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
2240 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
2242 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
2244 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
2245 let isAsCheapAsAMove = Cheap;
2246 let isReMaterializable = ReMat;
2247 let Inst{31-27} = 0b11110;
2249 let Inst{24-21} = opcod;
2250 let Inst{19-16} = 0b1111; // Rn
2254 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
2255 opc, ".w\t$Rd, $Rm",
2256 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
2257 let Inst{31-27} = 0b11101;
2258 let Inst{26-25} = 0b01;
2259 let Inst{24-21} = opcod;
2260 let Inst{19-16} = 0b1111; // Rn
2261 let Inst{14-12} = 0b000; // imm3
2262 let Inst{7-6} = 0b00; // imm2
2263 let Inst{5-4} = 0b00; // type
2266 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
2267 opc, ".w\t$Rd, $ShiftedRm",
2268 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
2269 let Inst{31-27} = 0b11101;
2270 let Inst{26-25} = 0b01;
2271 let Inst{24-21} = opcod;
2272 let Inst{19-16} = 0b1111; // Rn
2276 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2277 let AddedComplexity = 1 in
2278 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2279 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2280 UnOpFrag<(not node:$Src)>, 1, 1>;
2282 let AddedComplexity = 1 in
2283 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2284 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2286 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2287 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2288 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2289 Requires<[IsThumb2]>;
2291 def : T2Pat<(t2_so_imm_not:$src),
2292 (t2MVNi t2_so_imm_not:$src)>;
2294 //===----------------------------------------------------------------------===//
2295 // Multiply Instructions.
2297 let isCommutable = 1 in
2298 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2299 "mul", "\t$Rd, $Rn, $Rm",
2300 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2301 let Inst{31-27} = 0b11111;
2302 let Inst{26-23} = 0b0110;
2303 let Inst{22-20} = 0b000;
2304 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2305 let Inst{7-4} = 0b0000; // Multiply
2308 def t2MLA: T2FourReg<
2309 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2310 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2311 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2312 let Inst{31-27} = 0b11111;
2313 let Inst{26-23} = 0b0110;
2314 let Inst{22-20} = 0b000;
2315 let Inst{7-4} = 0b0000; // Multiply
2318 def t2MLS: T2FourReg<
2319 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2320 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2321 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2322 let Inst{31-27} = 0b11111;
2323 let Inst{26-23} = 0b0110;
2324 let Inst{22-20} = 0b000;
2325 let Inst{7-4} = 0b0001; // Multiply and Subtract
2328 // Extra precision multiplies with low / high results
2329 let neverHasSideEffects = 1 in {
2330 let isCommutable = 1 in {
2331 def t2SMULL : T2MulLong<0b000, 0b0000,
2332 (outs rGPR:$RdLo, rGPR:$RdHi),
2333 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2334 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2336 def t2UMULL : T2MulLong<0b010, 0b0000,
2337 (outs rGPR:$RdLo, rGPR:$RdHi),
2338 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2339 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2342 // Multiply + accumulate
2343 def t2SMLAL : T2MulLong<0b100, 0b0000,
2344 (outs rGPR:$RdLo, rGPR:$RdHi),
2345 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2346 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2348 def t2UMLAL : T2MulLong<0b110, 0b0000,
2349 (outs rGPR:$RdLo, rGPR:$RdHi),
2350 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2351 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2353 def t2UMAAL : T2MulLong<0b110, 0b0110,
2354 (outs rGPR:$RdLo, rGPR:$RdHi),
2355 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2356 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2357 Requires<[IsThumb2, HasThumb2DSP]>;
2358 } // neverHasSideEffects
2360 // Rounding variants of the below included for disassembly only
2362 // Most significant word multiply
2363 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2364 "smmul", "\t$Rd, $Rn, $Rm",
2365 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]>,
2366 Requires<[IsThumb2, HasThumb2DSP]> {
2367 let Inst{31-27} = 0b11111;
2368 let Inst{26-23} = 0b0110;
2369 let Inst{22-20} = 0b101;
2370 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2371 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2374 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2375 "smmulr", "\t$Rd, $Rn, $Rm", []>,
2376 Requires<[IsThumb2, HasThumb2DSP]> {
2377 let Inst{31-27} = 0b11111;
2378 let Inst{26-23} = 0b0110;
2379 let Inst{22-20} = 0b101;
2380 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2381 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2384 def t2SMMLA : T2FourReg<
2385 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2386 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2387 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>,
2388 Requires<[IsThumb2, HasThumb2DSP]> {
2389 let Inst{31-27} = 0b11111;
2390 let Inst{26-23} = 0b0110;
2391 let Inst{22-20} = 0b101;
2392 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2395 def t2SMMLAR: T2FourReg<
2396 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2397 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
2398 Requires<[IsThumb2, HasThumb2DSP]> {
2399 let Inst{31-27} = 0b11111;
2400 let Inst{26-23} = 0b0110;
2401 let Inst{22-20} = 0b101;
2402 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2405 def t2SMMLS: T2FourReg<
2406 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2407 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2408 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>,
2409 Requires<[IsThumb2, HasThumb2DSP]> {
2410 let Inst{31-27} = 0b11111;
2411 let Inst{26-23} = 0b0110;
2412 let Inst{22-20} = 0b110;
2413 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2416 def t2SMMLSR:T2FourReg<
2417 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2418 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
2419 Requires<[IsThumb2, HasThumb2DSP]> {
2420 let Inst{31-27} = 0b11111;
2421 let Inst{26-23} = 0b0110;
2422 let Inst{22-20} = 0b110;
2423 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2426 multiclass T2I_smul<string opc, PatFrag opnode> {
2427 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2428 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2429 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2430 (sext_inreg rGPR:$Rm, i16)))]>,
2431 Requires<[IsThumb2, HasThumb2DSP]> {
2432 let Inst{31-27} = 0b11111;
2433 let Inst{26-23} = 0b0110;
2434 let Inst{22-20} = 0b001;
2435 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2436 let Inst{7-6} = 0b00;
2437 let Inst{5-4} = 0b00;
2440 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2441 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2442 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2443 (sra rGPR:$Rm, (i32 16))))]>,
2444 Requires<[IsThumb2, HasThumb2DSP]> {
2445 let Inst{31-27} = 0b11111;
2446 let Inst{26-23} = 0b0110;
2447 let Inst{22-20} = 0b001;
2448 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2449 let Inst{7-6} = 0b00;
2450 let Inst{5-4} = 0b01;
2453 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2454 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2455 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2456 (sext_inreg rGPR:$Rm, i16)))]>,
2457 Requires<[IsThumb2, HasThumb2DSP]> {
2458 let Inst{31-27} = 0b11111;
2459 let Inst{26-23} = 0b0110;
2460 let Inst{22-20} = 0b001;
2461 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2462 let Inst{7-6} = 0b00;
2463 let Inst{5-4} = 0b10;
2466 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2467 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2468 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2469 (sra rGPR:$Rm, (i32 16))))]>,
2470 Requires<[IsThumb2, HasThumb2DSP]> {
2471 let Inst{31-27} = 0b11111;
2472 let Inst{26-23} = 0b0110;
2473 let Inst{22-20} = 0b001;
2474 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2475 let Inst{7-6} = 0b00;
2476 let Inst{5-4} = 0b11;
2479 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2480 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2481 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2482 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]>,
2483 Requires<[IsThumb2, HasThumb2DSP]> {
2484 let Inst{31-27} = 0b11111;
2485 let Inst{26-23} = 0b0110;
2486 let Inst{22-20} = 0b011;
2487 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2488 let Inst{7-6} = 0b00;
2489 let Inst{5-4} = 0b00;
2492 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2493 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2494 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2495 (sra rGPR:$Rm, (i32 16))), (i32 16)))]>,
2496 Requires<[IsThumb2, HasThumb2DSP]> {
2497 let Inst{31-27} = 0b11111;
2498 let Inst{26-23} = 0b0110;
2499 let Inst{22-20} = 0b011;
2500 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2501 let Inst{7-6} = 0b00;
2502 let Inst{5-4} = 0b01;
2507 multiclass T2I_smla<string opc, PatFrag opnode> {
2509 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2510 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2511 [(set rGPR:$Rd, (add rGPR:$Ra,
2512 (opnode (sext_inreg rGPR:$Rn, i16),
2513 (sext_inreg rGPR:$Rm, i16))))]>,
2514 Requires<[IsThumb2, HasThumb2DSP]> {
2515 let Inst{31-27} = 0b11111;
2516 let Inst{26-23} = 0b0110;
2517 let Inst{22-20} = 0b001;
2518 let Inst{7-6} = 0b00;
2519 let Inst{5-4} = 0b00;
2523 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2524 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2525 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2526 (sra rGPR:$Rm, (i32 16)))))]>,
2527 Requires<[IsThumb2, HasThumb2DSP]> {
2528 let Inst{31-27} = 0b11111;
2529 let Inst{26-23} = 0b0110;
2530 let Inst{22-20} = 0b001;
2531 let Inst{7-6} = 0b00;
2532 let Inst{5-4} = 0b01;
2536 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2537 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2538 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2539 (sext_inreg rGPR:$Rm, i16))))]>,
2540 Requires<[IsThumb2, HasThumb2DSP]> {
2541 let Inst{31-27} = 0b11111;
2542 let Inst{26-23} = 0b0110;
2543 let Inst{22-20} = 0b001;
2544 let Inst{7-6} = 0b00;
2545 let Inst{5-4} = 0b10;
2549 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2550 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2551 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2552 (sra rGPR:$Rm, (i32 16)))))]>,
2553 Requires<[IsThumb2, HasThumb2DSP]> {
2554 let Inst{31-27} = 0b11111;
2555 let Inst{26-23} = 0b0110;
2556 let Inst{22-20} = 0b001;
2557 let Inst{7-6} = 0b00;
2558 let Inst{5-4} = 0b11;
2562 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2563 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2564 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2565 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]>,
2566 Requires<[IsThumb2, HasThumb2DSP]> {
2567 let Inst{31-27} = 0b11111;
2568 let Inst{26-23} = 0b0110;
2569 let Inst{22-20} = 0b011;
2570 let Inst{7-6} = 0b00;
2571 let Inst{5-4} = 0b00;
2575 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2576 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2577 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2578 (sra rGPR:$Rm, (i32 16))), (i32 16))))]>,
2579 Requires<[IsThumb2, HasThumb2DSP]> {
2580 let Inst{31-27} = 0b11111;
2581 let Inst{26-23} = 0b0110;
2582 let Inst{22-20} = 0b011;
2583 let Inst{7-6} = 0b00;
2584 let Inst{5-4} = 0b01;
2588 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2589 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2591 // Halfword multiple accumulate long: SMLAL<x><y>
2592 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2593 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2594 [/* For disassembly only; pattern left blank */]>,
2595 Requires<[IsThumb2, HasThumb2DSP]>;
2596 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2597 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2598 [/* For disassembly only; pattern left blank */]>,
2599 Requires<[IsThumb2, HasThumb2DSP]>;
2600 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2601 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2602 [/* For disassembly only; pattern left blank */]>,
2603 Requires<[IsThumb2, HasThumb2DSP]>;
2604 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2605 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2606 [/* For disassembly only; pattern left blank */]>,
2607 Requires<[IsThumb2, HasThumb2DSP]>;
2609 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2610 def t2SMUAD: T2ThreeReg_mac<
2611 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2612 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>,
2613 Requires<[IsThumb2, HasThumb2DSP]> {
2614 let Inst{15-12} = 0b1111;
2616 def t2SMUADX:T2ThreeReg_mac<
2617 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2618 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []>,
2619 Requires<[IsThumb2, HasThumb2DSP]> {
2620 let Inst{15-12} = 0b1111;
2622 def t2SMUSD: T2ThreeReg_mac<
2623 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2624 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []>,
2625 Requires<[IsThumb2, HasThumb2DSP]> {
2626 let Inst{15-12} = 0b1111;
2628 def t2SMUSDX:T2ThreeReg_mac<
2629 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2630 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []>,
2631 Requires<[IsThumb2, HasThumb2DSP]> {
2632 let Inst{15-12} = 0b1111;
2634 def t2SMLAD : T2FourReg_mac<
2635 0, 0b010, 0b0000, (outs rGPR:$Rd),
2636 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2637 "\t$Rd, $Rn, $Rm, $Ra", []>,
2638 Requires<[IsThumb2, HasThumb2DSP]>;
2639 def t2SMLADX : T2FourReg_mac<
2640 0, 0b010, 0b0001, (outs rGPR:$Rd),
2641 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2642 "\t$Rd, $Rn, $Rm, $Ra", []>,
2643 Requires<[IsThumb2, HasThumb2DSP]>;
2644 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2645 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2646 "\t$Rd, $Rn, $Rm, $Ra", []>,
2647 Requires<[IsThumb2, HasThumb2DSP]>;
2648 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2649 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2650 "\t$Rd, $Rn, $Rm, $Ra", []>,
2651 Requires<[IsThumb2, HasThumb2DSP]>;
2652 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2653 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64, "smlald",
2654 "\t$Ra, $Rd, $Rn, $Rm", []>,
2655 Requires<[IsThumb2, HasThumb2DSP]>;
2656 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2657 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaldx",
2658 "\t$Ra, $Rd, $Rn, $Rm", []>,
2659 Requires<[IsThumb2, HasThumb2DSP]>;
2660 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2661 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlsld",
2662 "\t$Ra, $Rd, $Rn, $Rm", []>,
2663 Requires<[IsThumb2, HasThumb2DSP]>;
2664 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2665 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2666 "\t$Ra, $Rd, $Rn, $Rm", []>,
2667 Requires<[IsThumb2, HasThumb2DSP]>;
2669 //===----------------------------------------------------------------------===//
2670 // Division Instructions.
2671 // Signed and unsigned division on v7-M
2673 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2674 "sdiv", "\t$Rd, $Rn, $Rm",
2675 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
2676 Requires<[HasDivide, IsThumb2]> {
2677 let Inst{31-27} = 0b11111;
2678 let Inst{26-21} = 0b011100;
2680 let Inst{15-12} = 0b1111;
2681 let Inst{7-4} = 0b1111;
2684 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2685 "udiv", "\t$Rd, $Rn, $Rm",
2686 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
2687 Requires<[HasDivide, IsThumb2]> {
2688 let Inst{31-27} = 0b11111;
2689 let Inst{26-21} = 0b011101;
2691 let Inst{15-12} = 0b1111;
2692 let Inst{7-4} = 0b1111;
2695 //===----------------------------------------------------------------------===//
2696 // Misc. Arithmetic Instructions.
2699 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2700 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2701 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2702 let Inst{31-27} = 0b11111;
2703 let Inst{26-22} = 0b01010;
2704 let Inst{21-20} = op1;
2705 let Inst{15-12} = 0b1111;
2706 let Inst{7-6} = 0b10;
2707 let Inst{5-4} = op2;
2711 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2712 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2714 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2715 "rbit", "\t$Rd, $Rm",
2716 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2718 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2719 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2721 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2722 "rev16", ".w\t$Rd, $Rm",
2723 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>;
2725 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2726 "revsh", ".w\t$Rd, $Rm",
2727 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>;
2729 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
2730 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
2731 (t2REVSH rGPR:$Rm)>;
2733 def t2PKHBT : T2ThreeReg<
2734 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_lsl_amt:$sh),
2735 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2736 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2737 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
2739 Requires<[HasT2ExtractPack, IsThumb2]> {
2740 let Inst{31-27} = 0b11101;
2741 let Inst{26-25} = 0b01;
2742 let Inst{24-20} = 0b01100;
2743 let Inst{5} = 0; // BT form
2747 let Inst{14-12} = sh{4-2};
2748 let Inst{7-6} = sh{1-0};
2751 // Alternate cases for PKHBT where identities eliminate some nodes.
2752 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2753 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2754 Requires<[HasT2ExtractPack, IsThumb2]>;
2755 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2756 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2757 Requires<[HasT2ExtractPack, IsThumb2]>;
2759 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2760 // will match the pattern below.
2761 def t2PKHTB : T2ThreeReg<
2762 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_asr_amt:$sh),
2763 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2764 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2765 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
2767 Requires<[HasT2ExtractPack, IsThumb2]> {
2768 let Inst{31-27} = 0b11101;
2769 let Inst{26-25} = 0b01;
2770 let Inst{24-20} = 0b01100;
2771 let Inst{5} = 1; // TB form
2775 let Inst{14-12} = sh{4-2};
2776 let Inst{7-6} = sh{1-0};
2779 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2780 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2781 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2782 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2783 Requires<[HasT2ExtractPack, IsThumb2]>;
2784 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2785 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2786 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
2787 Requires<[HasT2ExtractPack, IsThumb2]>;
2789 //===----------------------------------------------------------------------===//
2790 // Comparison Instructions...
2792 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2793 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2794 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>, "t2CMP">;
2796 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm),
2797 (t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>;
2798 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, rGPR:$rhs),
2799 (t2CMPrr GPRnopc:$lhs, rGPR:$rhs)>;
2800 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg:$rhs),
2801 (t2CMPrs GPRnopc:$lhs, t2_so_reg:$rhs)>;
2803 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2804 // Compare-to-zero still works out, just not the relationals
2805 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2806 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2807 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2808 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2809 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>,
2812 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2813 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2815 def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
2816 (t2CMNzri GPRnopc:$src, t2_so_imm_neg:$imm)>;
2818 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2819 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2820 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>,
2822 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2823 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2824 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>,
2827 // Conditional moves
2828 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2829 // a two-value operand where a dag node expects two operands. :(
2830 let neverHasSideEffects = 1 in {
2831 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
2832 (ins rGPR:$false, rGPR:$Rm, pred:$p),
2834 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2835 RegConstraint<"$false = $Rd">;
2837 let isMoveImm = 1 in
2838 def t2MOVCCi : t2PseudoInst<(outs rGPR:$Rd),
2839 (ins rGPR:$false, t2_so_imm:$imm, pred:$p),
2841 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2842 RegConstraint<"$false = $Rd">;
2844 // FIXME: Pseudo-ize these. For now, just mark codegen only.
2845 let isCodeGenOnly = 1 in {
2846 let isMoveImm = 1 in
2847 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, imm0_65535_expr:$imm),
2849 "movw", "\t$Rd, $imm", []>,
2850 RegConstraint<"$false = $Rd"> {
2851 let Inst{31-27} = 0b11110;
2853 let Inst{24-21} = 0b0010;
2854 let Inst{20} = 0; // The S bit.
2860 let Inst{11-8} = Rd;
2861 let Inst{19-16} = imm{15-12};
2862 let Inst{26} = imm{11};
2863 let Inst{14-12} = imm{10-8};
2864 let Inst{7-0} = imm{7-0};
2867 let isMoveImm = 1 in
2868 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2869 (ins rGPR:$false, i32imm:$src, pred:$p),
2870 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2872 let isMoveImm = 1 in
2873 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2874 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2875 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2876 imm:$cc, CCR:$ccr))*/]>,
2877 RegConstraint<"$false = $Rd"> {
2878 let Inst{31-27} = 0b11110;
2880 let Inst{24-21} = 0b0011;
2881 let Inst{20} = 0; // The S bit.
2882 let Inst{19-16} = 0b1111; // Rn
2886 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2887 string opc, string asm, list<dag> pattern>
2888 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2889 let Inst{31-27} = 0b11101;
2890 let Inst{26-25} = 0b01;
2891 let Inst{24-21} = 0b0010;
2892 let Inst{20} = 0; // The S bit.
2893 let Inst{19-16} = 0b1111; // Rn
2894 let Inst{5-4} = opcod; // Shift type.
2896 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2897 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2898 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2899 RegConstraint<"$false = $Rd">;
2900 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2901 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2902 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2903 RegConstraint<"$false = $Rd">;
2904 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2905 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2906 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2907 RegConstraint<"$false = $Rd">;
2908 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2909 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2910 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2911 RegConstraint<"$false = $Rd">;
2912 } // isCodeGenOnly = 1
2913 } // neverHasSideEffects
2915 //===----------------------------------------------------------------------===//
2916 // Atomic operations intrinsics
2919 // memory barriers protect the atomic sequences
2920 let hasSideEffects = 1 in {
2921 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2922 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2923 Requires<[IsThumb, HasDB]> {
2925 let Inst{31-4} = 0xf3bf8f5;
2926 let Inst{3-0} = opt;
2930 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2931 "dsb", "\t$opt", []>,
2932 Requires<[IsThumb, HasDB]> {
2934 let Inst{31-4} = 0xf3bf8f4;
2935 let Inst{3-0} = opt;
2938 def t2ISB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2940 []>, Requires<[IsThumb2, HasDB]> {
2942 let Inst{31-4} = 0xf3bf8f6;
2943 let Inst{3-0} = opt;
2946 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
2947 InstrItinClass itin, string opc, string asm, string cstr,
2948 list<dag> pattern, bits<4> rt2 = 0b1111>
2949 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2950 let Inst{31-27} = 0b11101;
2951 let Inst{26-20} = 0b0001101;
2952 let Inst{11-8} = rt2;
2953 let Inst{7-6} = 0b01;
2954 let Inst{5-4} = opcod;
2955 let Inst{3-0} = 0b1111;
2959 let Inst{19-16} = addr;
2960 let Inst{15-12} = Rt;
2962 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
2963 InstrItinClass itin, string opc, string asm, string cstr,
2964 list<dag> pattern, bits<4> rt2 = 0b1111>
2965 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2966 let Inst{31-27} = 0b11101;
2967 let Inst{26-20} = 0b0001100;
2968 let Inst{11-8} = rt2;
2969 let Inst{7-6} = 0b01;
2970 let Inst{5-4} = opcod;
2976 let Inst{19-16} = addr;
2977 let Inst{15-12} = Rt;
2980 let mayLoad = 1 in {
2981 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
2982 AddrModeNone, 4, NoItinerary,
2983 "ldrexb", "\t$Rt, $addr", "", []>;
2984 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
2985 AddrModeNone, 4, NoItinerary,
2986 "ldrexh", "\t$Rt, $addr", "", []>;
2987 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_imm0_1020s4:$addr),
2988 AddrModeNone, 4, NoItinerary,
2989 "ldrex", "\t$Rt, $addr", "", []> {
2992 let Inst{31-27} = 0b11101;
2993 let Inst{26-20} = 0b0000101;
2994 let Inst{19-16} = addr{11-8};
2995 let Inst{15-12} = Rt;
2996 let Inst{11-8} = 0b1111;
2997 let Inst{7-0} = addr{7-0};
2999 let hasExtraDefRegAllocReq = 1 in
3000 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
3001 (ins addr_offset_none:$addr),
3002 AddrModeNone, 4, NoItinerary,
3003 "ldrexd", "\t$Rt, $Rt2, $addr", "",
3006 let Inst{11-8} = Rt2;
3010 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
3011 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
3012 (ins rGPR:$Rt, addr_offset_none:$addr),
3013 AddrModeNone, 4, NoItinerary,
3014 "strexb", "\t$Rd, $Rt, $addr", "", []>;
3015 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
3016 (ins rGPR:$Rt, addr_offset_none:$addr),
3017 AddrModeNone, 4, NoItinerary,
3018 "strexh", "\t$Rd, $Rt, $addr", "", []>;
3019 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt,
3020 t2addrmode_imm0_1020s4:$addr),
3021 AddrModeNone, 4, NoItinerary,
3022 "strex", "\t$Rd, $Rt, $addr", "",
3027 let Inst{31-27} = 0b11101;
3028 let Inst{26-20} = 0b0000100;
3029 let Inst{19-16} = addr{11-8};
3030 let Inst{15-12} = Rt;
3031 let Inst{11-8} = Rd;
3032 let Inst{7-0} = addr{7-0};
3036 let hasExtraSrcRegAllocReq = 1, Constraints = "@earlyclobber $Rd" in
3037 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
3038 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr),
3039 AddrModeNone, 4, NoItinerary,
3040 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
3043 let Inst{11-8} = Rt2;
3046 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", []>,
3047 Requires<[IsThumb2, HasV7]> {
3048 let Inst{31-16} = 0xf3bf;
3049 let Inst{15-14} = 0b10;
3052 let Inst{11-8} = 0b1111;
3053 let Inst{7-4} = 0b0010;
3054 let Inst{3-0} = 0b1111;
3057 //===----------------------------------------------------------------------===//
3058 // SJLJ Exception handling intrinsics
3059 // eh_sjlj_setjmp() is an instruction sequence to store the return
3060 // address and save #0 in R0 for the non-longjmp case.
3061 // Since by its nature we may be coming from some other function to get
3062 // here, and we're using the stack frame for the containing function to
3063 // save/restore registers, we can't keep anything live in regs across
3064 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
3065 // when we get here from a longjmp(). We force everything out of registers
3066 // except for our own input by listing the relevant registers in Defs. By
3067 // doing so, we also cause the prologue/epilogue code to actively preserve
3068 // all of the callee-saved resgisters, which is exactly what we want.
3069 // $val is a scratch register for our use.
3071 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
3072 QQQQ0, QQQQ1, QQQQ2, QQQQ3 ],
3073 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
3074 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3075 AddrModeNone, 0, NoItinerary, "", "",
3076 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3077 Requires<[IsThumb2, HasVFP2]>;
3081 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
3082 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
3083 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3084 AddrModeNone, 0, NoItinerary, "", "",
3085 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3086 Requires<[IsThumb2, NoVFP]>;
3090 //===----------------------------------------------------------------------===//
3091 // Control-Flow Instructions
3094 // FIXME: remove when we have a way to marking a MI with these properties.
3095 // FIXME: Should pc be an implicit operand like PICADD, etc?
3096 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
3097 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
3098 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
3099 reglist:$regs, variable_ops),
3100 4, IIC_iLoad_mBr, [],
3101 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
3102 RegConstraint<"$Rn = $wb">;
3104 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
3105 let isPredicable = 1 in
3106 def t2B : T2I<(outs), (ins uncondbrtarget:$target), IIC_Br,
3108 [(br bb:$target)]> {
3109 let Inst{31-27} = 0b11110;
3110 let Inst{15-14} = 0b10;
3114 let Inst{26} = target{19};
3115 let Inst{11} = target{18};
3116 let Inst{13} = target{17};
3117 let Inst{21-16} = target{16-11};
3118 let Inst{10-0} = target{10-0};
3121 let isNotDuplicable = 1, isIndirectBranch = 1 in {
3122 def t2BR_JT : t2PseudoInst<(outs),
3123 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3125 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
3127 // FIXME: Add a non-pc based case that can be predicated.
3128 def t2TBB_JT : t2PseudoInst<(outs),
3129 (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>;
3131 def t2TBH_JT : t2PseudoInst<(outs),
3132 (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>;
3134 def t2TBB : T2I<(outs), (ins addrmode_tbb:$addr), IIC_Br,
3135 "tbb", "\t$addr", []> {
3138 let Inst{31-20} = 0b111010001101;
3139 let Inst{19-16} = Rn;
3140 let Inst{15-5} = 0b11110000000;
3141 let Inst{4} = 0; // B form
3144 let DecoderMethod = "DecodeThumbTableBranch";
3147 def t2TBH : T2I<(outs), (ins addrmode_tbh:$addr), IIC_Br,
3148 "tbh", "\t$addr", []> {
3151 let Inst{31-20} = 0b111010001101;
3152 let Inst{19-16} = Rn;
3153 let Inst{15-5} = 0b11110000000;
3154 let Inst{4} = 1; // H form
3157 let DecoderMethod = "DecodeThumbTableBranch";
3159 } // isNotDuplicable, isIndirectBranch
3161 } // isBranch, isTerminator, isBarrier
3163 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3164 // a two-value operand where a dag node expects ", "two operands. :(
3165 let isBranch = 1, isTerminator = 1 in
3166 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3168 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3169 let Inst{31-27} = 0b11110;
3170 let Inst{15-14} = 0b10;
3174 let Inst{25-22} = p;
3177 let Inst{26} = target{20};
3178 let Inst{11} = target{19};
3179 let Inst{13} = target{18};
3180 let Inst{21-16} = target{17-12};
3181 let Inst{10-0} = target{11-1};
3183 let DecoderMethod = "DecodeThumb2BCCInstruction";
3186 // Tail calls. The Darwin version of thumb tail calls uses a t2 branch, so
3188 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3190 let Defs = [R0, R1, R2, R3, R9, R12, QQQQ0, QQQQ2, QQQQ3, PC],
3192 def tTAILJMPd: tPseudoExpand<(outs),
3193 (ins uncondbrtarget:$dst, pred:$p, variable_ops),
3195 (t2B uncondbrtarget:$dst, pred:$p)>,
3196 Requires<[IsThumb2, IsDarwin]>;
3200 let Defs = [ITSTATE] in
3201 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3202 AddrModeNone, 2, IIC_iALUx,
3203 "it$mask\t$cc", "", []> {
3204 // 16-bit instruction.
3205 let Inst{31-16} = 0x0000;
3206 let Inst{15-8} = 0b10111111;
3211 let Inst{3-0} = mask;
3213 let DecoderMethod = "DecodeIT";
3216 // Branch and Exchange Jazelle -- for disassembly only
3218 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func", []> {
3220 let Inst{31-27} = 0b11110;
3222 let Inst{25-20} = 0b111100;
3223 let Inst{19-16} = func;
3224 let Inst{15-0} = 0b1000111100000000;
3227 // Compare and branch on zero / non-zero
3228 let isBranch = 1, isTerminator = 1 in {
3229 def tCBZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3230 "cbz\t$Rn, $target", []>,
3231 T1Misc<{0,0,?,1,?,?,?}>,
3232 Requires<[IsThumb2]> {
3236 let Inst{9} = target{5};
3237 let Inst{7-3} = target{4-0};
3241 def tCBNZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3242 "cbnz\t$Rn, $target", []>,
3243 T1Misc<{1,0,?,1,?,?,?}>,
3244 Requires<[IsThumb2]> {
3248 let Inst{9} = target{5};
3249 let Inst{7-3} = target{4-0};
3255 // Change Processor State is a system instruction.
3256 // FIXME: Since the asm parser has currently no clean way to handle optional
3257 // operands, create 3 versions of the same instruction. Once there's a clean
3258 // framework to represent optional operands, change this behavior.
3259 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3260 !strconcat("cps", asm_op), []> {
3266 let Inst{31-27} = 0b11110;
3268 let Inst{25-20} = 0b111010;
3269 let Inst{19-16} = 0b1111;
3270 let Inst{15-14} = 0b10;
3272 let Inst{10-9} = imod;
3274 let Inst{7-5} = iflags;
3275 let Inst{4-0} = mode;
3276 let DecoderMethod = "DecodeT2CPSInstruction";
3280 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3281 "$imod.w\t$iflags, $mode">;
3282 let mode = 0, M = 0 in
3283 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3284 "$imod.w\t$iflags">;
3285 let imod = 0, iflags = 0, M = 1 in
3286 def t2CPS1p : t2CPS<(ins imm0_31:$mode), "\t$mode">;
3288 // A6.3.4 Branches and miscellaneous control
3289 // Table A6-14 Change Processor State, and hint instructions
3290 class T2I_hint<bits<8> op7_0, string opc, string asm>
3291 : T2I<(outs), (ins), NoItinerary, opc, asm, []> {
3292 let Inst{31-20} = 0xf3a;
3293 let Inst{19-16} = 0b1111;
3294 let Inst{15-14} = 0b10;
3296 let Inst{10-8} = 0b000;
3297 let Inst{7-0} = op7_0;
3300 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3301 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3302 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3303 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3304 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3306 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
3308 let Inst{31-20} = 0b111100111010;
3309 let Inst{19-16} = 0b1111;
3310 let Inst{15-8} = 0b10000000;
3311 let Inst{7-4} = 0b1111;
3312 let Inst{3-0} = opt;
3315 // Secure Monitor Call is a system instruction.
3316 // Option = Inst{19-16}
3317 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt", []> {
3318 let Inst{31-27} = 0b11110;
3319 let Inst{26-20} = 0b1111111;
3320 let Inst{15-12} = 0b1000;
3323 let Inst{19-16} = opt;
3326 class T2SRS<bits<2> Op, bit W, dag oops, dag iops, InstrItinClass itin,
3327 string opc, string asm, list<dag> pattern>
3328 : T2I<oops, iops, itin, opc, asm, pattern> {
3330 let Inst{31-25} = 0b1110100;
3331 let Inst{24-23} = Op;
3334 let Inst{20-16} = 0b01101;
3335 let Inst{15-5} = 0b11000000000;
3336 let Inst{4-0} = mode{4-0};
3339 // Store Return State is a system instruction.
3340 def t2SRSDB_UPD : T2SRS<0b00, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3341 "srsdb", "\tsp!, $mode", []>;
3342 def t2SRSDB : T2SRS<0b00, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3343 "srsdb","\tsp, $mode", []>;
3344 def t2SRSIA_UPD : T2SRS<0b11, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3345 "srsia","\tsp!, $mode", []>;
3346 def t2SRSIA : T2SRS<0b11, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3347 "srsia","\tsp, $mode", []>;
3349 // Return From Exception is a system instruction.
3350 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3351 string opc, string asm, list<dag> pattern>
3352 : T2I<oops, iops, itin, opc, asm, pattern> {
3353 let Inst{31-20} = op31_20{11-0};
3356 let Inst{19-16} = Rn;
3357 let Inst{15-0} = 0xc000;
3360 def t2RFEDBW : T2RFE<0b111010000011,
3361 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3362 [/* For disassembly only; pattern left blank */]>;
3363 def t2RFEDB : T2RFE<0b111010000001,
3364 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3365 [/* For disassembly only; pattern left blank */]>;
3366 def t2RFEIAW : T2RFE<0b111010011011,
3367 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3368 [/* For disassembly only; pattern left blank */]>;
3369 def t2RFEIA : T2RFE<0b111010011001,
3370 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3371 [/* For disassembly only; pattern left blank */]>;
3373 //===----------------------------------------------------------------------===//
3374 // Non-Instruction Patterns
3377 // 32-bit immediate using movw + movt.
3378 // This is a single pseudo instruction to make it re-materializable.
3379 // FIXME: Remove this when we can do generalized remat.
3380 let isReMaterializable = 1, isMoveImm = 1 in
3381 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3382 [(set rGPR:$dst, (i32 imm:$src))]>,
3383 Requires<[IsThumb, HasV6T2]>;
3385 // Pseudo instruction that combines movw + movt + add pc (if pic).
3386 // It also makes it possible to rematerialize the instructions.
3387 // FIXME: Remove this when we can do generalized remat and when machine licm
3388 // can properly the instructions.
3389 let isReMaterializable = 1 in {
3390 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3392 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3393 Requires<[IsThumb2, UseMovt]>;
3395 def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3397 [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3398 Requires<[IsThumb2, UseMovt]>;
3401 // ConstantPool, GlobalAddress, and JumpTable
3402 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3403 Requires<[IsThumb2, DontUseMovt]>;
3404 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3405 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3406 Requires<[IsThumb2, UseMovt]>;
3408 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3409 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3411 // Pseudo instruction that combines ldr from constpool and add pc. This should
3412 // be expanded into two instructions late to allow if-conversion and
3414 let canFoldAsLoad = 1, isReMaterializable = 1 in
3415 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3417 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3419 Requires<[IsThumb2]>;
3420 //===----------------------------------------------------------------------===//
3421 // Coprocessor load/store -- for disassembly only
3423 class T2CI<dag oops, dag iops, string opc, string asm>
3424 : T2I<oops, iops, NoItinerary, opc, asm, []> {
3425 let Inst{27-25} = 0b110;
3428 multiclass T2LdStCop<bits<4> op31_28, bit load, string opc> {
3429 def _OFFSET : T2CI<(outs),
3430 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3431 opc, "\tp$cop, cr$CRd, $addr"> {
3432 let Inst{31-28} = op31_28;
3433 let Inst{24} = 1; // P = 1
3434 let Inst{21} = 0; // W = 0
3435 let Inst{22} = 0; // D = 0
3436 let Inst{20} = load;
3437 let DecoderMethod = "DecodeCopMemInstruction";
3440 def _PRE : T2CI<(outs),
3441 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3442 opc, "\tp$cop, cr$CRd, $addr!"> {
3443 let Inst{31-28} = op31_28;
3444 let Inst{24} = 1; // P = 1
3445 let Inst{21} = 1; // W = 1
3446 let Inst{22} = 0; // D = 0
3447 let Inst{20} = load;
3448 let DecoderMethod = "DecodeCopMemInstruction";
3451 def _POST : T2CI<(outs),
3452 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3453 opc, "\tp$cop, cr$CRd, $addr"> {
3454 let Inst{31-28} = op31_28;
3455 let Inst{24} = 0; // P = 0
3456 let Inst{21} = 1; // W = 1
3457 let Inst{22} = 0; // D = 0
3458 let Inst{20} = load;
3459 let DecoderMethod = "DecodeCopMemInstruction";
3462 def _OPTION : T2CI<(outs),
3463 (ins nohash_imm:$cop,nohash_imm:$CRd,GPR:$base, nohash_imm:$option),
3464 opc, "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
3465 let Inst{31-28} = op31_28;
3466 let Inst{24} = 0; // P = 0
3467 let Inst{23} = 1; // U = 1
3468 let Inst{21} = 0; // W = 0
3469 let Inst{22} = 0; // D = 0
3470 let Inst{20} = load;
3471 let DecoderMethod = "DecodeCopMemInstruction";
3474 def L_OFFSET : T2CI<(outs),
3475 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3476 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr"> {
3477 let Inst{31-28} = op31_28;
3478 let Inst{24} = 1; // P = 1
3479 let Inst{21} = 0; // W = 0
3480 let Inst{22} = 1; // D = 1
3481 let Inst{20} = load;
3482 let DecoderMethod = "DecodeCopMemInstruction";
3485 def L_PRE : T2CI<(outs),
3486 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3487 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr!"> {
3488 let Inst{31-28} = op31_28;
3489 let Inst{24} = 1; // P = 1
3490 let Inst{21} = 1; // W = 1
3491 let Inst{22} = 1; // D = 1
3492 let Inst{20} = load;
3493 let DecoderMethod = "DecodeCopMemInstruction";
3496 def L_POST : T2CI<(outs),
3497 (ins nohash_imm:$cop, nohash_imm:$CRd, addr_offset_none:$addr,
3498 postidx_imm8s4:$offset),
3499 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr, $offset"> {
3500 let Inst{31-28} = op31_28;
3501 let Inst{24} = 0; // P = 0
3502 let Inst{21} = 1; // W = 1
3503 let Inst{22} = 1; // D = 1
3504 let Inst{20} = load;
3505 let DecoderMethod = "DecodeCopMemInstruction";
3508 def L_OPTION : T2CI<(outs),
3509 (ins nohash_imm:$cop, nohash_imm:$CRd,GPR:$base,nohash_imm:$option),
3510 !strconcat(opc, "l"), "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
3511 let Inst{31-28} = op31_28;
3512 let Inst{24} = 0; // P = 0
3513 let Inst{23} = 1; // U = 1
3514 let Inst{21} = 0; // W = 0
3515 let Inst{22} = 1; // D = 1
3516 let Inst{20} = load;
3517 let DecoderMethod = "DecodeCopMemInstruction";
3521 defm t2LDC : T2LdStCop<0b1111, 1, "ldc">;
3522 defm t2STC : T2LdStCop<0b1111, 0, "stc">;
3525 //===----------------------------------------------------------------------===//
3526 // Move between special register and ARM core register -- for disassembly only
3528 // Move to ARM core register from Special Register
3529 def t2MRS : T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, apsr", []> {
3531 let Inst{31-12} = 0b11110011111011111000;
3532 let Inst{11-8} = Rd;
3533 let Inst{7-0} = 0b0000;
3536 def : t2InstAlias<"mrs${p} $Rd, cpsr", (t2MRS GPR:$Rd, pred:$p)>;
3538 def t2MRSsys:T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr", []> {
3540 let Inst{31-12} = 0b11110011111111111000;
3541 let Inst{11-8} = Rd;
3542 let Inst{7-0} = 0b0000;
3545 // Move from ARM core register to Special Register
3547 // No need to have both system and application versions, the encodings are the
3548 // same and the assembly parser has no way to distinguish between them. The mask
3549 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3550 // the mask with the fields to be accessed in the special register.
3551 def t2MSR : T2I<(outs), (ins msr_mask:$mask, rGPR:$Rn),
3552 NoItinerary, "msr", "\t$mask, $Rn", []> {
3555 let Inst{31-21} = 0b11110011100;
3556 let Inst{20} = mask{4}; // R Bit
3557 let Inst{19-16} = Rn;
3558 let Inst{15-12} = 0b1000;
3559 let Inst{11-8} = mask{3-0};
3563 //===----------------------------------------------------------------------===//
3564 // Move between coprocessor and ARM core register
3567 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
3569 : T2Cop<Op, oops, iops,
3570 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3572 let Inst{27-24} = 0b1110;
3573 let Inst{20} = direction;
3583 let Inst{15-12} = Rt;
3584 let Inst{11-8} = cop;
3585 let Inst{23-21} = opc1;
3586 let Inst{7-5} = opc2;
3587 let Inst{3-0} = CRm;
3588 let Inst{19-16} = CRn;
3591 class t2MovRRCopro<bits<4> Op, string opc, bit direction,
3592 list<dag> pattern = []>
3594 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3595 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
3596 let Inst{27-24} = 0b1100;
3597 let Inst{23-21} = 0b010;
3598 let Inst{20} = direction;
3606 let Inst{15-12} = Rt;
3607 let Inst{19-16} = Rt2;
3608 let Inst{11-8} = cop;
3609 let Inst{7-4} = opc1;
3610 let Inst{3-0} = CRm;
3613 /* from ARM core register to coprocessor */
3614 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
3616 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3617 c_imm:$CRm, imm0_7:$opc2),
3618 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3619 imm:$CRm, imm:$opc2)]>;
3620 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
3621 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3622 c_imm:$CRm, imm0_7:$opc2),
3623 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3624 imm:$CRm, imm:$opc2)]>;
3626 /* from coprocessor to ARM core register */
3627 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
3628 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3629 c_imm:$CRm, imm0_7:$opc2), []>;
3631 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
3632 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3633 c_imm:$CRm, imm0_7:$opc2), []>;
3635 def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3636 (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3638 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3639 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3642 /* from ARM core register to coprocessor */
3643 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0,
3644 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
3646 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0,
3647 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
3648 GPR:$Rt2, imm:$CRm)]>;
3649 /* from coprocessor to ARM core register */
3650 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>;
3652 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1>;
3654 //===----------------------------------------------------------------------===//
3655 // Other Coprocessor Instructions.
3658 def tCDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3659 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3660 "cdp\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3661 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3662 imm:$CRm, imm:$opc2)]> {
3663 let Inst{27-24} = 0b1110;
3672 let Inst{3-0} = CRm;
3674 let Inst{7-5} = opc2;
3675 let Inst{11-8} = cop;
3676 let Inst{15-12} = CRd;
3677 let Inst{19-16} = CRn;
3678 let Inst{23-20} = opc1;
3681 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3682 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3683 "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3684 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3685 imm:$CRm, imm:$opc2)]> {
3686 let Inst{27-24} = 0b1110;
3695 let Inst{3-0} = CRm;
3697 let Inst{7-5} = opc2;
3698 let Inst{11-8} = cop;
3699 let Inst{15-12} = CRd;
3700 let Inst{19-16} = CRn;
3701 let Inst{23-20} = opc1;
3706 //===----------------------------------------------------------------------===//
3707 // Non-Instruction Patterns
3710 // SXT/UXT with no rotate
3711 let AddedComplexity = 16 in {
3712 def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>,
3713 Requires<[IsThumb2]>;
3714 def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>,
3715 Requires<[IsThumb2]>;
3716 def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>,
3717 Requires<[HasT2ExtractPack, IsThumb2]>;
3718 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)),
3719 (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3720 Requires<[HasT2ExtractPack, IsThumb2]>;
3721 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)),
3722 (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3723 Requires<[HasT2ExtractPack, IsThumb2]>;
3726 def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>,
3727 Requires<[IsThumb2]>;
3728 def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>,
3729 Requires<[IsThumb2]>;
3730 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)),
3731 (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3732 Requires<[HasT2ExtractPack, IsThumb2]>;
3733 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)),
3734 (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3735 Requires<[HasT2ExtractPack, IsThumb2]>;
3737 // Atomic load/store patterns
3738 def : T2Pat<(atomic_load_8 t2addrmode_imm12:$addr),
3739 (t2LDRBi12 t2addrmode_imm12:$addr)>;
3740 def : T2Pat<(atomic_load_8 t2addrmode_negimm8:$addr),
3741 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
3742 def : T2Pat<(atomic_load_8 t2addrmode_so_reg:$addr),
3743 (t2LDRBs t2addrmode_so_reg:$addr)>;
3744 def : T2Pat<(atomic_load_16 t2addrmode_imm12:$addr),
3745 (t2LDRHi12 t2addrmode_imm12:$addr)>;
3746 def : T2Pat<(atomic_load_16 t2addrmode_negimm8:$addr),
3747 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
3748 def : T2Pat<(atomic_load_16 t2addrmode_so_reg:$addr),
3749 (t2LDRHs t2addrmode_so_reg:$addr)>;
3750 def : T2Pat<(atomic_load_32 t2addrmode_imm12:$addr),
3751 (t2LDRi12 t2addrmode_imm12:$addr)>;
3752 def : T2Pat<(atomic_load_32 t2addrmode_negimm8:$addr),
3753 (t2LDRi8 t2addrmode_negimm8:$addr)>;
3754 def : T2Pat<(atomic_load_32 t2addrmode_so_reg:$addr),
3755 (t2LDRs t2addrmode_so_reg:$addr)>;
3756 def : T2Pat<(atomic_store_8 t2addrmode_imm12:$addr, GPR:$val),
3757 (t2STRBi12 GPR:$val, t2addrmode_imm12:$addr)>;
3758 def : T2Pat<(atomic_store_8 t2addrmode_negimm8:$addr, GPR:$val),
3759 (t2STRBi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3760 def : T2Pat<(atomic_store_8 t2addrmode_so_reg:$addr, GPR:$val),
3761 (t2STRBs GPR:$val, t2addrmode_so_reg:$addr)>;
3762 def : T2Pat<(atomic_store_16 t2addrmode_imm12:$addr, GPR:$val),
3763 (t2STRHi12 GPR:$val, t2addrmode_imm12:$addr)>;
3764 def : T2Pat<(atomic_store_16 t2addrmode_negimm8:$addr, GPR:$val),
3765 (t2STRHi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3766 def : T2Pat<(atomic_store_16 t2addrmode_so_reg:$addr, GPR:$val),
3767 (t2STRHs GPR:$val, t2addrmode_so_reg:$addr)>;
3768 def : T2Pat<(atomic_store_32 t2addrmode_imm12:$addr, GPR:$val),
3769 (t2STRi12 GPR:$val, t2addrmode_imm12:$addr)>;
3770 def : T2Pat<(atomic_store_32 t2addrmode_negimm8:$addr, GPR:$val),
3771 (t2STRi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3772 def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val),
3773 (t2STRs GPR:$val, t2addrmode_so_reg:$addr)>;
3776 //===----------------------------------------------------------------------===//
3777 // Assembler aliases
3780 // Aliases for ADC without the ".w" optional width specifier.
3781 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm",
3782 (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3783 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm",
3784 (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3785 pred:$p, cc_out:$s)>;
3787 // Aliases for SBC without the ".w" optional width specifier.
3788 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm",
3789 (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3790 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
3791 (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3792 pred:$p, cc_out:$s)>;
3794 // Aliases for ADD without the ".w" optional width specifier.
3795 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
3796 (t2ADDri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3797 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
3798 (t2ADDri12 rGPR:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
3799 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
3800 (t2ADDrr rGPR:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3801 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
3802 (t2ADDrs rGPR:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
3803 pred:$p, cc_out:$s)>;
3805 // Aliases for SUB without the ".w" optional width specifier.
3806 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm",
3807 (t2SUBri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3808 def : t2InstAlias<"sub${p} $Rd, $Rn, $imm",
3809 (t2SUBri12 rGPR:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
3810 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $Rm",
3811 (t2SUBrr rGPR:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3812 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $ShiftedRm",
3813 (t2SUBrs rGPR:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
3814 pred:$p, cc_out:$s)>;
3816 // Alias for compares without the ".w" optional width specifier.
3817 def : t2InstAlias<"cmn${p} $Rn, $Rm",
3818 (t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3819 def : t2InstAlias<"teq${p} $Rn, $Rm",
3820 (t2TEQrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3821 def : t2InstAlias<"tst${p} $Rn, $Rm",
3822 (t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3825 def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb2, HasDB]>;
3826 def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb2, HasDB]>;
3827 def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb2, HasDB]>;
3829 // Alias for LDR, LDRB, LDRH, LDRSB, and LDRSH without the ".w" optional
3831 def : t2InstAlias<"ldr${p} $Rt, $addr",
3832 (t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3833 def : t2InstAlias<"ldrb${p} $Rt, $addr",
3834 (t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3835 def : t2InstAlias<"ldrh${p} $Rt, $addr",
3836 (t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3837 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
3838 (t2LDRSBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3839 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
3840 (t2LDRSHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3842 def : t2InstAlias<"ldr${p} $Rt, $addr",
3843 (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3844 def : t2InstAlias<"ldrb${p} $Rt, $addr",
3845 (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3846 def : t2InstAlias<"ldrh${p} $Rt, $addr",
3847 (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3848 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
3849 (t2LDRSBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3850 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
3851 (t2LDRSHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3853 // Alias for MVN without the ".w" optional width specifier.
3854 def : t2InstAlias<"mvn${s}${p} $Rd, $Rm",
3855 (t2MVNr rGPR:$Rd, rGPR:$Rm, pred:$p, cc_out:$s)>;
3856 def : t2InstAlias<"mvn${s}${p} $Rd, $ShiftedRm",
3857 (t2MVNs rGPR:$Rd, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>;
3859 // PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT when the
3860 // shift amount is zero (i.e., unspecified).
3861 def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
3862 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
3863 Requires<[HasT2ExtractPack, IsThumb2]>;
3864 def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
3865 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
3866 Requires<[HasT2ExtractPack, IsThumb2]>;
3868 // PUSH/POP aliases for STM/LDM
3869 def : t2InstAlias<"push${p}.w $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
3870 def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
3871 def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
3872 def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
3874 // Alias for REV/REV16/REVSH without the ".w" optional width specifier.
3875 def : t2InstAlias<"rev${p} $Rd, $Rm", (t2REV rGPR:$Rd, rGPR:$Rm, pred:$p)>;
3876 def : t2InstAlias<"rev16${p} $Rd, $Rm", (t2REV16 rGPR:$Rd, rGPR:$Rm, pred:$p)>;
3877 def : t2InstAlias<"revsh${p} $Rd, $Rm", (t2REVSH rGPR:$Rd, rGPR:$Rm, pred:$p)>;
3880 // Alias for RSB without the ".w" optional width specifier, and with optional
3881 // implied destination register.
3882 def : t2InstAlias<"rsb${s}${p} $Rd, $Rn, $imm",
3883 (t2RSBri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3884 def : t2InstAlias<"rsb${s}${p} $Rdn, $imm",
3885 (t2RSBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3886 def : t2InstAlias<"rsb${s}${p} $Rdn, $Rm",
3887 (t2RSBrr rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3888 def : t2InstAlias<"rsb${s}${p} $Rdn, $ShiftedRm",
3889 (t2RSBrs rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$ShiftedRm, pred:$p,
3892 // SSAT/USAT optional shift operand.
3893 def : t2InstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
3894 (t2SSAT rGPR:$Rd, imm1_32:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
3895 def : t2InstAlias<"usat${p} $Rd, $sat_imm, $Rn",
3896 (t2USAT rGPR:$Rd, imm0_31:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
3898 // STM w/o the .w suffix.
3899 def : t2InstAlias<"stm${p} $Rn, $regs",
3900 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
3902 // Alias for STR, STRB, and STRH without the ".w" optional
3904 def : t2InstAlias<"str${p} $Rt, $addr",
3905 (t2STRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3906 def : t2InstAlias<"strb${p} $Rt, $addr",
3907 (t2STRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3908 def : t2InstAlias<"strh${p} $Rt, $addr",
3909 (t2STRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3911 def : t2InstAlias<"str${p} $Rt, $addr",
3912 (t2STRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3913 def : t2InstAlias<"strb${p} $Rt, $addr",
3914 (t2STRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3915 def : t2InstAlias<"strh${p} $Rt, $addr",
3916 (t2STRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3918 // Extend instruction optional rotate operand.
3919 def : t2InstAlias<"sxtab${p} $Rd, $Rn, $Rm",
3920 (t2SXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
3921 def : t2InstAlias<"sxtah${p} $Rd, $Rn, $Rm",
3922 (t2SXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
3923 def : t2InstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
3924 (t2SXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
3925 def : t2InstAlias<"sxtb${p} $Rd, $Rm",
3926 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
3927 def : t2InstAlias<"sxtb16${p} $Rd, $Rm",
3928 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
3929 def : t2InstAlias<"sxth${p} $Rd, $Rm",
3930 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
3932 def : t2InstAlias<"uxtab${p} $Rd, $Rn, $Rm",
3933 (t2UXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
3934 def : t2InstAlias<"uxtah${p} $Rd, $Rn, $Rm",
3935 (t2UXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
3936 def : t2InstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
3937 (t2UXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
3938 def : t2InstAlias<"uxtb${p} $Rd, $Rm",
3939 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
3940 def : t2InstAlias<"uxtb16${p} $Rd, $Rm",
3941 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
3942 def : t2InstAlias<"uxth${p} $Rd, $Rm",
3943 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
3945 // Extend instruction w/o the ".w" optional width specifier.
3946 def : t2InstAlias<"uxtb${p} $Rd, $Rm$rot",
3947 (t2UXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
3948 def : t2InstAlias<"uxtb16${p} $Rd, $Rm$rot",
3949 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
3950 def : t2InstAlias<"uxth${p} $Rd, $Rm$rot",
3951 (t2UXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
3953 def : t2InstAlias<"sxtb${p} $Rd, $Rm$rot",
3954 (t2SXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
3955 def : t2InstAlias<"sxtb16${p} $Rd, $Rm$rot",
3956 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
3957 def : t2InstAlias<"sxth${p} $Rd, $Rm$rot",
3958 (t2SXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;