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 : Operand<i32> {
16 let PrintMethod = "printMandatoryPredicateOperand";
19 // IT block condition mask
20 def it_mask : Operand<i32> {
21 let PrintMethod = "printThumbITMask";
24 // Shifted operands. No register controlled shifts for Thumb2.
25 // Note: We do not support rrx shifted operands yet.
26 def t2_so_reg : Operand<i32>, // reg imm
27 ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
29 let EncoderMethod = "getT2SORegOpValue";
30 let PrintMethod = "printT2SOOperand";
31 let MIOperandInfo = (ops rGPR, i32imm);
34 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
35 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
36 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
39 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
40 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
41 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), MVT::i32);
44 // t2_so_imm - Match a 32-bit immediate operand, which is an
45 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
46 // immediate splatted into multiple bytes of the word.
47 def t2_so_imm_asmoperand : AsmOperandClass { let Name = "T2SOImm"; }
48 def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{
49 return ARM_AM::getT2SOImmVal(Imm) != -1;
51 let ParserMatchClass = t2_so_imm_asmoperand;
52 let EncoderMethod = "getT2SOImmOpValue";
55 // t2_so_imm_not - Match an immediate that is a complement
57 def t2_so_imm_not : Operand<i32>,
59 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
60 }], t2_so_imm_not_XFORM>;
62 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
63 def t2_so_imm_neg : Operand<i32>,
65 return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
66 }], t2_so_imm_neg_XFORM>;
68 /// imm1_31 predicate - True if the 32-bit immediate is in the range [1,31].
69 def imm1_31 : ImmLeaf<i32, [{
70 return (int32_t)Imm >= 1 && (int32_t)Imm < 32;
73 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
74 def imm0_4095 : Operand<i32>,
76 return Imm >= 0 && Imm < 4096;
79 def imm0_4095_neg : PatLeaf<(i32 imm), [{
80 return (uint32_t)(-N->getZExtValue()) < 4096;
83 def imm0_255_neg : PatLeaf<(i32 imm), [{
84 return (uint32_t)(-N->getZExtValue()) < 255;
87 def imm0_255_not : PatLeaf<(i32 imm), [{
88 return (uint32_t)(~N->getZExtValue()) < 255;
91 def lo5AllOne : PatLeaf<(i32 imm), [{
92 // Returns true if all low 5-bits are 1.
93 return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL;
96 // Define Thumb2 specific addressing modes.
98 // t2addrmode_imm12 := reg + imm12
99 def t2addrmode_imm12 : Operand<i32>,
100 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
101 let PrintMethod = "printAddrModeImm12Operand";
102 let EncoderMethod = "getAddrModeImm12OpValue";
103 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
104 let ParserMatchClass = MemMode5AsmOperand;
107 // t2ldrlabel := imm12
108 def t2ldrlabel : Operand<i32> {
109 let EncoderMethod = "getAddrModeImm12OpValue";
113 // ADR instruction labels.
114 def t2adrlabel : Operand<i32> {
115 let EncoderMethod = "getT2AdrLabelOpValue";
119 // t2addrmode_imm8 := reg +/- imm8
120 def t2addrmode_imm8 : Operand<i32>,
121 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
122 let PrintMethod = "printT2AddrModeImm8Operand";
123 let EncoderMethod = "getT2AddrModeImm8OpValue";
124 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
125 let ParserMatchClass = MemMode5AsmOperand;
128 def t2am_imm8_offset : Operand<i32>,
129 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
130 [], [SDNPWantRoot]> {
131 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
132 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
133 let ParserMatchClass = MemMode5AsmOperand;
136 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
137 def t2addrmode_imm8s4 : Operand<i32> {
138 let PrintMethod = "printT2AddrModeImm8s4Operand";
139 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
140 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
141 let ParserMatchClass = MemMode5AsmOperand;
144 def t2am_imm8s4_offset : Operand<i32> {
145 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
148 // t2addrmode_so_reg := reg + (reg << imm2)
149 def t2addrmode_so_reg : Operand<i32>,
150 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
151 let PrintMethod = "printT2AddrModeSoRegOperand";
152 let EncoderMethod = "getT2AddrModeSORegOpValue";
153 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
154 let ParserMatchClass = MemMode5AsmOperand;
157 // t2addrmode_reg := reg
158 // Used by load/store exclusive instructions. Useful to enable right assembly
159 // parsing and printing. Not used for any codegen matching.
161 def t2addrmode_reg : Operand<i32> {
162 let PrintMethod = "printAddrMode7Operand";
163 let MIOperandInfo = (ops GPR);
164 let ParserMatchClass = MemMode7AsmOperand;
167 //===----------------------------------------------------------------------===//
168 // Multiclass helpers...
172 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
173 string opc, string asm, list<dag> pattern>
174 : T2I<oops, iops, itin, opc, asm, pattern> {
179 let Inst{26} = imm{11};
180 let Inst{14-12} = imm{10-8};
181 let Inst{7-0} = imm{7-0};
185 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
186 string opc, string asm, list<dag> pattern>
187 : T2sI<oops, iops, itin, opc, asm, pattern> {
193 let Inst{26} = imm{11};
194 let Inst{14-12} = imm{10-8};
195 let Inst{7-0} = imm{7-0};
198 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
199 string opc, string asm, list<dag> pattern>
200 : T2I<oops, iops, itin, opc, asm, pattern> {
204 let Inst{19-16} = Rn;
205 let Inst{26} = imm{11};
206 let Inst{14-12} = imm{10-8};
207 let Inst{7-0} = imm{7-0};
211 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
212 string opc, string asm, list<dag> pattern>
213 : T2I<oops, iops, itin, opc, asm, pattern> {
218 let Inst{3-0} = ShiftedRm{3-0};
219 let Inst{5-4} = ShiftedRm{6-5};
220 let Inst{14-12} = ShiftedRm{11-9};
221 let Inst{7-6} = ShiftedRm{8-7};
224 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
225 string opc, string asm, list<dag> pattern>
226 : T2sI<oops, iops, itin, opc, asm, pattern> {
231 let Inst{3-0} = ShiftedRm{3-0};
232 let Inst{5-4} = ShiftedRm{6-5};
233 let Inst{14-12} = ShiftedRm{11-9};
234 let Inst{7-6} = ShiftedRm{8-7};
237 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
238 string opc, string asm, list<dag> pattern>
239 : T2I<oops, iops, itin, opc, asm, pattern> {
243 let Inst{19-16} = Rn;
244 let Inst{3-0} = ShiftedRm{3-0};
245 let Inst{5-4} = ShiftedRm{6-5};
246 let Inst{14-12} = ShiftedRm{11-9};
247 let Inst{7-6} = ShiftedRm{8-7};
250 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
251 string opc, string asm, list<dag> pattern>
252 : T2I<oops, iops, itin, opc, asm, pattern> {
260 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
261 string opc, string asm, list<dag> pattern>
262 : T2sI<oops, iops, itin, opc, asm, pattern> {
270 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
271 string opc, string asm, list<dag> pattern>
272 : T2I<oops, iops, itin, opc, asm, pattern> {
276 let Inst{19-16} = Rn;
281 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
282 string opc, string asm, list<dag> pattern>
283 : T2I<oops, iops, itin, opc, asm, pattern> {
289 let Inst{19-16} = Rn;
290 let Inst{26} = imm{11};
291 let Inst{14-12} = imm{10-8};
292 let Inst{7-0} = imm{7-0};
295 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
296 string opc, string asm, list<dag> pattern>
297 : T2sI<oops, iops, itin, opc, asm, pattern> {
303 let Inst{19-16} = Rn;
304 let Inst{26} = imm{11};
305 let Inst{14-12} = imm{10-8};
306 let Inst{7-0} = imm{7-0};
309 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
310 string opc, string asm, list<dag> pattern>
311 : T2I<oops, iops, itin, opc, asm, pattern> {
318 let Inst{14-12} = imm{4-2};
319 let Inst{7-6} = imm{1-0};
322 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
323 string opc, string asm, list<dag> pattern>
324 : T2sI<oops, iops, itin, opc, asm, pattern> {
331 let Inst{14-12} = imm{4-2};
332 let Inst{7-6} = imm{1-0};
335 class T2ThreeReg<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;
347 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
348 string opc, string asm, list<dag> pattern>
349 : T2sI<oops, iops, itin, opc, asm, pattern> {
355 let Inst{19-16} = Rn;
359 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
360 string opc, string asm, list<dag> pattern>
361 : T2I<oops, iops, itin, opc, asm, pattern> {
367 let Inst{19-16} = Rn;
368 let Inst{3-0} = ShiftedRm{3-0};
369 let Inst{5-4} = ShiftedRm{6-5};
370 let Inst{14-12} = ShiftedRm{11-9};
371 let Inst{7-6} = ShiftedRm{8-7};
374 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
375 string opc, string asm, list<dag> pattern>
376 : T2sI<oops, iops, itin, opc, asm, pattern> {
382 let Inst{19-16} = Rn;
383 let Inst{3-0} = ShiftedRm{3-0};
384 let Inst{5-4} = ShiftedRm{6-5};
385 let Inst{14-12} = ShiftedRm{11-9};
386 let Inst{7-6} = ShiftedRm{8-7};
389 class T2FourReg<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;
398 let Inst{15-12} = Ra;
403 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
404 dag oops, dag iops, InstrItinClass itin,
405 string opc, string asm, list<dag> pattern>
406 : T2I<oops, iops, itin, opc, asm, pattern> {
412 let Inst{31-23} = 0b111110111;
413 let Inst{22-20} = opc22_20;
414 let Inst{19-16} = Rn;
415 let Inst{15-12} = RdLo;
416 let Inst{11-8} = RdHi;
417 let Inst{7-4} = opc7_4;
422 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
423 /// unary operation that produces a value. These are predicable and can be
424 /// changed to modify CPSR.
425 multiclass T2I_un_irs<bits<4> opcod, string opc,
426 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
427 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
429 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
431 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
432 let isAsCheapAsAMove = Cheap;
433 let isReMaterializable = ReMat;
434 let Inst{31-27} = 0b11110;
436 let Inst{24-21} = opcod;
437 let Inst{19-16} = 0b1111; // Rn
441 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
443 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
444 let Inst{31-27} = 0b11101;
445 let Inst{26-25} = 0b01;
446 let Inst{24-21} = opcod;
447 let Inst{19-16} = 0b1111; // Rn
448 let Inst{14-12} = 0b000; // imm3
449 let Inst{7-6} = 0b00; // imm2
450 let Inst{5-4} = 0b00; // type
453 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
454 opc, ".w\t$Rd, $ShiftedRm",
455 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
456 let Inst{31-27} = 0b11101;
457 let Inst{26-25} = 0b01;
458 let Inst{24-21} = opcod;
459 let Inst{19-16} = 0b1111; // Rn
463 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
464 /// binary operation that produces a value. These are predicable and can be
465 /// changed to modify CPSR.
466 multiclass T2I_bin_irs<bits<4> opcod, string opc,
467 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
468 PatFrag opnode, string baseOpc, bit Commutable = 0,
471 def ri : T2sTwoRegImm<
472 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
473 opc, "\t$Rd, $Rn, $imm",
474 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
475 let Inst{31-27} = 0b11110;
477 let Inst{24-21} = opcod;
481 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
482 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
483 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
484 let isCommutable = Commutable;
485 let Inst{31-27} = 0b11101;
486 let Inst{26-25} = 0b01;
487 let Inst{24-21} = opcod;
488 let Inst{14-12} = 0b000; // imm3
489 let Inst{7-6} = 0b00; // imm2
490 let Inst{5-4} = 0b00; // type
493 def rs : T2sTwoRegShiftedReg<
494 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
495 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
496 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
497 let Inst{31-27} = 0b11101;
498 let Inst{26-25} = 0b01;
499 let Inst{24-21} = opcod;
501 // Assembly aliases for optional destination operand when it's the same
502 // as the source operand.
503 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
504 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
505 t2_so_imm:$imm, pred:$p,
507 Requires<[IsThumb2]>;
508 def : InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
509 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
512 Requires<[IsThumb2]>;
513 def : InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
514 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
515 t2_so_reg:$shift, pred:$p,
517 Requires<[IsThumb2]>;
520 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
521 // the ".w" suffix to indicate that they are wide.
522 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
523 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
524 PatFrag opnode, string baseOpc, bit Commutable = 0> :
525 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, baseOpc, Commutable, ".w">;
527 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
528 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
529 /// it is equivalent to the T2I_bin_irs counterpart.
530 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
532 def ri : T2sTwoRegImm<
533 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
534 opc, ".w\t$Rd, $Rn, $imm",
535 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
536 let Inst{31-27} = 0b11110;
538 let Inst{24-21} = opcod;
542 def rr : T2sThreeReg<
543 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
544 opc, "\t$Rd, $Rn, $Rm",
545 [/* For disassembly only; pattern left blank */]> {
546 let Inst{31-27} = 0b11101;
547 let Inst{26-25} = 0b01;
548 let Inst{24-21} = opcod;
549 let Inst{14-12} = 0b000; // imm3
550 let Inst{7-6} = 0b00; // imm2
551 let Inst{5-4} = 0b00; // type
554 def rs : T2sTwoRegShiftedReg<
555 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
556 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
557 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
558 let Inst{31-27} = 0b11101;
559 let Inst{26-25} = 0b01;
560 let Inst{24-21} = opcod;
564 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
565 /// instruction modifies the CPSR register.
566 let isCodeGenOnly = 1, Defs = [CPSR] in {
567 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
568 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
569 PatFrag opnode, bit Commutable = 0> {
571 def ri : T2TwoRegImm<
572 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
573 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
574 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
575 let Inst{31-27} = 0b11110;
577 let Inst{24-21} = opcod;
578 let Inst{20} = 1; // The S bit.
583 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
584 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $Rm",
585 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
586 let isCommutable = Commutable;
587 let Inst{31-27} = 0b11101;
588 let Inst{26-25} = 0b01;
589 let Inst{24-21} = opcod;
590 let Inst{20} = 1; // The S bit.
591 let Inst{14-12} = 0b000; // imm3
592 let Inst{7-6} = 0b00; // imm2
593 let Inst{5-4} = 0b00; // type
596 def rs : T2TwoRegShiftedReg<
597 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
598 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $ShiftedRm",
599 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
600 let Inst{31-27} = 0b11101;
601 let Inst{26-25} = 0b01;
602 let Inst{24-21} = opcod;
603 let Inst{20} = 1; // The S bit.
608 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
609 /// patterns for a binary operation that produces a value.
610 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
611 bit Commutable = 0> {
613 // The register-immediate version is re-materializable. This is useful
614 // in particular for taking the address of a local.
615 let isReMaterializable = 1 in {
616 def ri : T2sTwoRegImm<
617 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
618 opc, ".w\t$Rd, $Rn, $imm",
619 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
620 let Inst{31-27} = 0b11110;
623 let Inst{23-21} = op23_21;
629 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
630 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
631 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
635 let Inst{31-27} = 0b11110;
636 let Inst{26} = imm{11};
637 let Inst{25-24} = 0b10;
638 let Inst{23-21} = op23_21;
639 let Inst{20} = 0; // The S bit.
640 let Inst{19-16} = Rn;
642 let Inst{14-12} = imm{10-8};
644 let Inst{7-0} = imm{7-0};
647 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), IIC_iALUr,
648 opc, ".w\t$Rd, $Rn, $Rm",
649 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
650 let isCommutable = Commutable;
651 let Inst{31-27} = 0b11101;
652 let Inst{26-25} = 0b01;
654 let Inst{23-21} = op23_21;
655 let Inst{14-12} = 0b000; // imm3
656 let Inst{7-6} = 0b00; // imm2
657 let Inst{5-4} = 0b00; // type
660 def rs : T2sTwoRegShiftedReg<
661 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
662 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
663 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
664 let Inst{31-27} = 0b11101;
665 let Inst{26-25} = 0b01;
667 let Inst{23-21} = op23_21;
671 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
672 /// for a binary operation that produces a value and use the carry
673 /// bit. It's not predicable.
674 let Uses = [CPSR] in {
675 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
676 bit Commutable = 0> {
678 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
679 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
680 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
681 Requires<[IsThumb2]> {
682 let Inst{31-27} = 0b11110;
684 let Inst{24-21} = opcod;
688 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
689 opc, ".w\t$Rd, $Rn, $Rm",
690 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
691 Requires<[IsThumb2]> {
692 let isCommutable = Commutable;
693 let Inst{31-27} = 0b11101;
694 let Inst{26-25} = 0b01;
695 let Inst{24-21} = opcod;
696 let Inst{14-12} = 0b000; // imm3
697 let Inst{7-6} = 0b00; // imm2
698 let Inst{5-4} = 0b00; // type
701 def rs : T2sTwoRegShiftedReg<
702 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
703 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
704 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
705 Requires<[IsThumb2]> {
706 let Inst{31-27} = 0b11101;
707 let Inst{26-25} = 0b01;
708 let Inst{24-21} = opcod;
713 // Carry setting variants
714 // NOTE: CPSR def omitted because it will be handled by the custom inserter.
715 let usesCustomInserter = 1 in {
716 multiclass T2I_adde_sube_s_irs<PatFrag opnode, bit Commutable = 0> {
718 def ri : t2PseudoInst<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
720 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>;
722 def rr : t2PseudoInst<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
724 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
725 let isCommutable = Commutable;
728 def rs : t2PseudoInst<
729 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
731 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>;
735 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
736 /// version is not needed since this is only for codegen.
737 let isCodeGenOnly = 1, Defs = [CPSR] in {
738 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
740 def ri : T2TwoRegImm<
741 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
742 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
743 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
744 let Inst{31-27} = 0b11110;
746 let Inst{24-21} = opcod;
747 let Inst{20} = 1; // The S bit.
751 def rs : T2TwoRegShiftedReg<
752 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
753 IIC_iALUsi, !strconcat(opc, "s"), "\t$Rd, $Rn, $ShiftedRm",
754 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
755 let Inst{31-27} = 0b11101;
756 let Inst{26-25} = 0b01;
757 let Inst{24-21} = opcod;
758 let Inst{20} = 1; // The S bit.
763 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
764 // rotate operation that produces a value.
765 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
767 def ri : T2sTwoRegShiftImm<
768 (outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$imm), IIC_iMOVsi,
769 opc, ".w\t$Rd, $Rm, $imm",
770 [(set rGPR:$Rd, (opnode rGPR:$Rm, imm1_31:$imm))]> {
771 let Inst{31-27} = 0b11101;
772 let Inst{26-21} = 0b010010;
773 let Inst{19-16} = 0b1111; // Rn
774 let Inst{5-4} = opcod;
777 def rr : T2sThreeReg<
778 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
779 opc, ".w\t$Rd, $Rn, $Rm",
780 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
781 let Inst{31-27} = 0b11111;
782 let Inst{26-23} = 0b0100;
783 let Inst{22-21} = opcod;
784 let Inst{15-12} = 0b1111;
785 let Inst{7-4} = 0b0000;
789 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
790 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
791 /// a explicit result, only implicitly set CPSR.
792 let isCompare = 1, Defs = [CPSR] in {
793 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
794 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
797 def ri : T2OneRegCmpImm<
798 (outs), (ins GPR:$Rn, t2_so_imm:$imm), iii,
799 opc, ".w\t$Rn, $imm",
800 [(opnode GPR:$Rn, t2_so_imm:$imm)]> {
801 let Inst{31-27} = 0b11110;
803 let Inst{24-21} = opcod;
804 let Inst{20} = 1; // The S bit.
806 let Inst{11-8} = 0b1111; // Rd
809 def rr : T2TwoRegCmp<
810 (outs), (ins GPR:$lhs, rGPR:$rhs), iir,
811 opc, ".w\t$lhs, $rhs",
812 [(opnode GPR:$lhs, rGPR:$rhs)]> {
813 let Inst{31-27} = 0b11101;
814 let Inst{26-25} = 0b01;
815 let Inst{24-21} = opcod;
816 let Inst{20} = 1; // The S bit.
817 let Inst{14-12} = 0b000; // imm3
818 let Inst{11-8} = 0b1111; // Rd
819 let Inst{7-6} = 0b00; // imm2
820 let Inst{5-4} = 0b00; // type
823 def rs : T2OneRegCmpShiftedReg<
824 (outs), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
825 opc, ".w\t$Rn, $ShiftedRm",
826 [(opnode GPR:$Rn, t2_so_reg:$ShiftedRm)]> {
827 let Inst{31-27} = 0b11101;
828 let Inst{26-25} = 0b01;
829 let Inst{24-21} = opcod;
830 let Inst{20} = 1; // The S bit.
831 let Inst{11-8} = 0b1111; // Rd
836 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
837 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
838 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
839 def i12 : T2Ii12<(outs GPR:$Rt), (ins t2addrmode_imm12:$addr), iii,
840 opc, ".w\t$Rt, $addr",
841 [(set GPR:$Rt, (opnode t2addrmode_imm12:$addr))]> {
842 let Inst{31-27} = 0b11111;
843 let Inst{26-25} = 0b00;
844 let Inst{24} = signed;
846 let Inst{22-21} = opcod;
847 let Inst{20} = 1; // load
850 let Inst{15-12} = Rt;
853 let addr{12} = 1; // add = TRUE
854 let Inst{19-16} = addr{16-13}; // Rn
855 let Inst{23} = addr{12}; // U
856 let Inst{11-0} = addr{11-0}; // imm
858 def i8 : T2Ii8 <(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), iii,
860 [(set GPR:$Rt, (opnode t2addrmode_imm8:$addr))]> {
861 let Inst{31-27} = 0b11111;
862 let Inst{26-25} = 0b00;
863 let Inst{24} = signed;
865 let Inst{22-21} = opcod;
866 let Inst{20} = 1; // load
868 // Offset: index==TRUE, wback==FALSE
869 let Inst{10} = 1; // The P bit.
870 let Inst{8} = 0; // The W bit.
873 let Inst{15-12} = Rt;
876 let Inst{19-16} = addr{12-9}; // Rn
877 let Inst{9} = addr{8}; // U
878 let Inst{7-0} = addr{7-0}; // imm
880 def s : T2Iso <(outs GPR:$Rt), (ins t2addrmode_so_reg:$addr), iis,
881 opc, ".w\t$Rt, $addr",
882 [(set GPR:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
883 let Inst{31-27} = 0b11111;
884 let Inst{26-25} = 0b00;
885 let Inst{24} = signed;
887 let Inst{22-21} = opcod;
888 let Inst{20} = 1; // load
889 let Inst{11-6} = 0b000000;
892 let Inst{15-12} = Rt;
895 let Inst{19-16} = addr{9-6}; // Rn
896 let Inst{3-0} = addr{5-2}; // Rm
897 let Inst{5-4} = addr{1-0}; // imm
900 // FIXME: Is the pci variant actually needed?
901 def pci : T2Ipc <(outs GPR:$Rt), (ins t2ldrlabel:$addr), iii,
902 opc, ".w\t$Rt, $addr",
903 [(set GPR:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
904 let isReMaterializable = 1;
905 let Inst{31-27} = 0b11111;
906 let Inst{26-25} = 0b00;
907 let Inst{24} = signed;
908 let Inst{23} = ?; // add = (U == '1')
909 let Inst{22-21} = opcod;
910 let Inst{20} = 1; // load
911 let Inst{19-16} = 0b1111; // Rn
914 let Inst{15-12} = Rt{3-0};
915 let Inst{11-0} = addr{11-0};
919 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
920 multiclass T2I_st<bits<2> opcod, string opc,
921 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
922 def i12 : T2Ii12<(outs), (ins GPR:$Rt, t2addrmode_imm12:$addr), iii,
923 opc, ".w\t$Rt, $addr",
924 [(opnode GPR:$Rt, t2addrmode_imm12:$addr)]> {
925 let Inst{31-27} = 0b11111;
926 let Inst{26-23} = 0b0001;
927 let Inst{22-21} = opcod;
928 let Inst{20} = 0; // !load
931 let Inst{15-12} = Rt;
934 let addr{12} = 1; // add = TRUE
935 let Inst{19-16} = addr{16-13}; // Rn
936 let Inst{23} = addr{12}; // U
937 let Inst{11-0} = addr{11-0}; // imm
939 def i8 : T2Ii8 <(outs), (ins GPR:$Rt, t2addrmode_imm8:$addr), iii,
941 [(opnode GPR:$Rt, t2addrmode_imm8:$addr)]> {
942 let Inst{31-27} = 0b11111;
943 let Inst{26-23} = 0b0000;
944 let Inst{22-21} = opcod;
945 let Inst{20} = 0; // !load
947 // Offset: index==TRUE, wback==FALSE
948 let Inst{10} = 1; // The P bit.
949 let Inst{8} = 0; // The W bit.
952 let Inst{15-12} = Rt;
955 let Inst{19-16} = addr{12-9}; // Rn
956 let Inst{9} = addr{8}; // U
957 let Inst{7-0} = addr{7-0}; // imm
959 def s : T2Iso <(outs), (ins GPR:$Rt, t2addrmode_so_reg:$addr), iis,
960 opc, ".w\t$Rt, $addr",
961 [(opnode GPR:$Rt, t2addrmode_so_reg:$addr)]> {
962 let Inst{31-27} = 0b11111;
963 let Inst{26-23} = 0b0000;
964 let Inst{22-21} = opcod;
965 let Inst{20} = 0; // !load
966 let Inst{11-6} = 0b000000;
969 let Inst{15-12} = Rt;
972 let Inst{19-16} = addr{9-6}; // Rn
973 let Inst{3-0} = addr{5-2}; // Rm
974 let Inst{5-4} = addr{1-0}; // imm
978 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
979 /// register and one whose operand is a register rotated by 8/16/24.
980 multiclass T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> {
981 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
983 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
984 let Inst{31-27} = 0b11111;
985 let Inst{26-23} = 0b0100;
986 let Inst{22-20} = opcod;
987 let Inst{19-16} = 0b1111; // Rn
988 let Inst{15-12} = 0b1111;
990 let Inst{5-4} = 0b00; // rotate
992 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
993 opc, ".w\t$Rd, $Rm$rot",
994 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]> {
995 let Inst{31-27} = 0b11111;
996 let Inst{26-23} = 0b0100;
997 let Inst{22-20} = opcod;
998 let Inst{19-16} = 0b1111; // Rn
999 let Inst{15-12} = 0b1111;
1003 let Inst{5-4} = rot{1-0}; // rotate
1007 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
1008 multiclass T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
1009 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1011 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>,
1012 Requires<[HasT2ExtractPack, IsThumb2]> {
1013 let Inst{31-27} = 0b11111;
1014 let Inst{26-23} = 0b0100;
1015 let Inst{22-20} = opcod;
1016 let Inst{19-16} = 0b1111; // Rn
1017 let Inst{15-12} = 0b1111;
1019 let Inst{5-4} = 0b00; // rotate
1021 def r_rot : T2TwoReg<(outs rGPR:$dst), (ins rGPR:$Rm, rot_imm:$rot),
1022 IIC_iEXTr, opc, "\t$dst, $Rm$rot",
1023 [(set rGPR:$dst, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1024 Requires<[HasT2ExtractPack, IsThumb2]> {
1025 let Inst{31-27} = 0b11111;
1026 let Inst{26-23} = 0b0100;
1027 let Inst{22-20} = opcod;
1028 let Inst{19-16} = 0b1111; // Rn
1029 let Inst{15-12} = 0b1111;
1033 let Inst{5-4} = rot{1-0}; // rotate
1037 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1039 multiclass T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> {
1040 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1041 opc, "\t$Rd, $Rm", []>,
1042 Requires<[IsThumb2, HasT2ExtractPack]> {
1043 let Inst{31-27} = 0b11111;
1044 let Inst{26-23} = 0b0100;
1045 let Inst{22-20} = opcod;
1046 let Inst{19-16} = 0b1111; // Rn
1047 let Inst{15-12} = 0b1111;
1049 let Inst{5-4} = 0b00; // rotate
1051 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1052 opc, "\t$Rd, $Rm, ror $rot", []>,
1053 Requires<[IsThumb2, HasT2ExtractPack]> {
1054 let Inst{31-27} = 0b11111;
1055 let Inst{26-23} = 0b0100;
1056 let Inst{22-20} = opcod;
1057 let Inst{19-16} = 0b1111; // Rn
1058 let Inst{15-12} = 0b1111;
1062 let Inst{5-4} = rot{1-0}; // rotate
1066 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1067 /// register and one whose operand is a register rotated by 8/16/24.
1068 multiclass T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> {
1069 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1070 opc, "\t$Rd, $Rn, $Rm",
1071 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
1072 Requires<[HasT2ExtractPack, IsThumb2]> {
1073 let Inst{31-27} = 0b11111;
1074 let Inst{26-23} = 0b0100;
1075 let Inst{22-20} = opcod;
1076 let Inst{15-12} = 0b1111;
1078 let Inst{5-4} = 0b00; // rotate
1080 def rr_rot : T2ThreeReg<(outs rGPR:$Rd),
1081 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1082 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot",
1083 [(set rGPR:$Rd, (opnode rGPR:$Rn,
1084 (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1085 Requires<[HasT2ExtractPack, IsThumb2]> {
1086 let Inst{31-27} = 0b11111;
1087 let Inst{26-23} = 0b0100;
1088 let Inst{22-20} = opcod;
1089 let Inst{15-12} = 0b1111;
1093 let Inst{5-4} = rot{1-0}; // rotate
1097 multiclass T2I_exta_rrot_np<bits<3> opcod, string opc> {
1098 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1099 opc, "\t$Rd, $Rn, $Rm", []> {
1100 let Inst{31-27} = 0b11111;
1101 let Inst{26-23} = 0b0100;
1102 let Inst{22-20} = opcod;
1103 let Inst{15-12} = 0b1111;
1105 let Inst{5-4} = 0b00; // rotate
1107 def rr_rot :T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm,rot_imm:$rot),
1108 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []> {
1109 let Inst{31-27} = 0b11111;
1110 let Inst{26-23} = 0b0100;
1111 let Inst{22-20} = opcod;
1112 let Inst{15-12} = 0b1111;
1116 let Inst{5-4} = rot{1-0}; // rotate
1120 //===----------------------------------------------------------------------===//
1122 //===----------------------------------------------------------------------===//
1124 //===----------------------------------------------------------------------===//
1125 // Miscellaneous Instructions.
1128 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1129 string asm, list<dag> pattern>
1130 : T2XI<oops, iops, itin, asm, pattern> {
1134 let Inst{11-8} = Rd;
1135 let Inst{26} = label{11};
1136 let Inst{14-12} = label{10-8};
1137 let Inst{7-0} = label{7-0};
1140 // LEApcrel - Load a pc-relative address into a register without offending the
1142 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1143 (ins t2adrlabel:$addr, pred:$p),
1144 IIC_iALUi, "adr{$p}.w\t$Rd, #$addr", []> {
1145 let Inst{31-27} = 0b11110;
1146 let Inst{25-24} = 0b10;
1147 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1150 let Inst{19-16} = 0b1111; // Rn
1155 let Inst{11-8} = Rd;
1156 let Inst{23} = addr{12};
1157 let Inst{21} = addr{12};
1158 let Inst{26} = addr{11};
1159 let Inst{14-12} = addr{10-8};
1160 let Inst{7-0} = addr{7-0};
1163 let neverHasSideEffects = 1, isReMaterializable = 1 in
1164 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1166 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1167 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1172 //===----------------------------------------------------------------------===//
1173 // Load / store Instructions.
1177 let canFoldAsLoad = 1, isReMaterializable = 1 in
1178 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
1179 UnOpFrag<(load node:$Src)>>;
1181 // Loads with zero extension
1182 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1183 UnOpFrag<(zextloadi16 node:$Src)>>;
1184 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1185 UnOpFrag<(zextloadi8 node:$Src)>>;
1187 // Loads with sign extension
1188 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1189 UnOpFrag<(sextloadi16 node:$Src)>>;
1190 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1191 UnOpFrag<(sextloadi8 node:$Src)>>;
1193 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1195 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1196 (ins t2addrmode_imm8s4:$addr),
1197 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", []>;
1198 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1200 // zextload i1 -> zextload i8
1201 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1202 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1203 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
1204 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1205 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1206 (t2LDRBs t2addrmode_so_reg:$addr)>;
1207 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1208 (t2LDRBpci tconstpool:$addr)>;
1210 // extload -> zextload
1211 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1213 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1214 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1215 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
1216 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1217 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1218 (t2LDRBs t2addrmode_so_reg:$addr)>;
1219 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1220 (t2LDRBpci tconstpool:$addr)>;
1222 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1223 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1224 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
1225 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1226 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1227 (t2LDRBs t2addrmode_so_reg:$addr)>;
1228 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1229 (t2LDRBpci tconstpool:$addr)>;
1231 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1232 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1233 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
1234 (t2LDRHi8 t2addrmode_imm8:$addr)>;
1235 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1236 (t2LDRHs t2addrmode_so_reg:$addr)>;
1237 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1238 (t2LDRHpci tconstpool:$addr)>;
1240 // FIXME: The destination register of the loads and stores can't be PC, but
1241 // can be SP. We need another regclass (similar to rGPR) to represent
1242 // that. Not a pressing issue since these are selected manually,
1247 let mayLoad = 1, neverHasSideEffects = 1 in {
1248 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1249 (ins t2addrmode_imm8:$addr),
1250 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1251 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1254 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1255 (ins GPR:$base, t2am_imm8_offset:$addr),
1256 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1257 "ldr", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1260 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1261 (ins t2addrmode_imm8:$addr),
1262 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1263 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1265 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1266 (ins GPR:$base, t2am_imm8_offset:$addr),
1267 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1268 "ldrb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1271 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1272 (ins t2addrmode_imm8:$addr),
1273 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1274 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1276 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1277 (ins GPR:$base, t2am_imm8_offset:$addr),
1278 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1279 "ldrh", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1282 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1283 (ins t2addrmode_imm8:$addr),
1284 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1285 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1287 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1288 (ins GPR:$base, t2am_imm8_offset:$addr),
1289 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1290 "ldrsb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1293 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1294 (ins t2addrmode_imm8:$addr),
1295 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1296 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1298 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$Rn),
1299 (ins GPR:$base, t2am_imm8_offset:$addr),
1300 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1301 "ldrsh", "\t$dst, [$Rn], $addr", "$base = $Rn",
1303 } // mayLoad = 1, neverHasSideEffects = 1
1305 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1306 // for disassembly only.
1307 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1308 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1309 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1310 "\t$Rt, $addr", []> {
1311 let Inst{31-27} = 0b11111;
1312 let Inst{26-25} = 0b00;
1313 let Inst{24} = signed;
1315 let Inst{22-21} = type;
1316 let Inst{20} = 1; // load
1318 let Inst{10-8} = 0b110; // PUW.
1322 let Inst{15-12} = Rt;
1323 let Inst{19-16} = addr{12-9};
1324 let Inst{7-0} = addr{7-0};
1327 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1328 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1329 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1330 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1331 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1334 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1335 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1336 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1337 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1338 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1339 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1342 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1343 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1344 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1345 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
1348 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1349 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1350 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1351 "str", "\t$Rt, [$Rn, $addr]!",
1352 "$Rn = $base_wb,@earlyclobber $base_wb",
1354 (pre_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1356 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1357 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1358 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1359 "str", "\t$Rt, [$Rn], $addr",
1360 "$Rn = $base_wb,@earlyclobber $base_wb",
1362 (post_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1364 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1365 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1366 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1367 "strh", "\t$Rt, [$Rn, $addr]!",
1368 "$Rn = $base_wb,@earlyclobber $base_wb",
1370 (pre_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1372 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1373 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1374 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1375 "strh", "\t$Rt, [$Rn], $addr",
1376 "$Rn = $base_wb,@earlyclobber $base_wb",
1378 (post_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1380 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1381 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1382 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1383 "strb", "\t$Rt, [$Rn, $addr]!",
1384 "$Rn = $base_wb,@earlyclobber $base_wb",
1386 (pre_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1388 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1389 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1390 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1391 "strb", "\t$Rt, [$Rn], $addr",
1392 "$Rn = $base_wb,@earlyclobber $base_wb",
1394 (post_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1396 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1398 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1399 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1400 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1401 "\t$Rt, $addr", []> {
1402 let Inst{31-27} = 0b11111;
1403 let Inst{26-25} = 0b00;
1404 let Inst{24} = 0; // not signed
1406 let Inst{22-21} = type;
1407 let Inst{20} = 0; // store
1409 let Inst{10-8} = 0b110; // PUW
1413 let Inst{15-12} = Rt;
1414 let Inst{19-16} = addr{12-9};
1415 let Inst{7-0} = addr{7-0};
1418 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1419 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1420 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1422 // ldrd / strd pre / post variants
1423 // For disassembly only.
1425 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1426 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1427 "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1429 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1430 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1431 "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
1433 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1434 (ins rGPR:$Rt, rGPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1435 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1437 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1438 (ins rGPR:$Rt, rGPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1439 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
1441 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1442 // data/instruction access. These are for disassembly only.
1443 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1444 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1445 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1447 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1449 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1450 let Inst{31-25} = 0b1111100;
1451 let Inst{24} = instr;
1453 let Inst{21} = write;
1455 let Inst{15-12} = 0b1111;
1458 let addr{12} = 1; // add = TRUE
1459 let Inst{19-16} = addr{16-13}; // Rn
1460 let Inst{23} = addr{12}; // U
1461 let Inst{11-0} = addr{11-0}; // imm12
1464 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1466 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1467 let Inst{31-25} = 0b1111100;
1468 let Inst{24} = instr;
1469 let Inst{23} = 0; // U = 0
1471 let Inst{21} = write;
1473 let Inst{15-12} = 0b1111;
1474 let Inst{11-8} = 0b1100;
1477 let Inst{19-16} = addr{12-9}; // Rn
1478 let Inst{7-0} = addr{7-0}; // imm8
1481 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1483 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1484 let Inst{31-25} = 0b1111100;
1485 let Inst{24} = instr;
1486 let Inst{23} = 0; // add = TRUE for T1
1488 let Inst{21} = write;
1490 let Inst{15-12} = 0b1111;
1491 let Inst{11-6} = 0000000;
1494 let Inst{19-16} = addr{9-6}; // Rn
1495 let Inst{3-0} = addr{5-2}; // Rm
1496 let Inst{5-4} = addr{1-0}; // imm2
1500 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1501 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1502 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1504 //===----------------------------------------------------------------------===//
1505 // Load / store multiple Instructions.
1508 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1509 InstrItinClass itin_upd, bit L_bit> {
1511 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1512 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1516 let Inst{31-27} = 0b11101;
1517 let Inst{26-25} = 0b00;
1518 let Inst{24-23} = 0b01; // Increment After
1520 let Inst{21} = 0; // No writeback
1521 let Inst{20} = L_bit;
1522 let Inst{19-16} = Rn;
1523 let Inst{15-0} = regs;
1526 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1527 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1531 let Inst{31-27} = 0b11101;
1532 let Inst{26-25} = 0b00;
1533 let Inst{24-23} = 0b01; // Increment After
1535 let Inst{21} = 1; // Writeback
1536 let Inst{20} = L_bit;
1537 let Inst{19-16} = Rn;
1538 let Inst{15-0} = regs;
1541 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1542 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1546 let Inst{31-27} = 0b11101;
1547 let Inst{26-25} = 0b00;
1548 let Inst{24-23} = 0b10; // Decrement Before
1550 let Inst{21} = 0; // No writeback
1551 let Inst{20} = L_bit;
1552 let Inst{19-16} = Rn;
1553 let Inst{15-0} = regs;
1556 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1557 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1561 let Inst{31-27} = 0b11101;
1562 let Inst{26-25} = 0b00;
1563 let Inst{24-23} = 0b10; // Decrement Before
1565 let Inst{21} = 1; // Writeback
1566 let Inst{20} = L_bit;
1567 let Inst{19-16} = Rn;
1568 let Inst{15-0} = regs;
1572 let neverHasSideEffects = 1 in {
1574 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1575 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1577 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1578 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1580 } // neverHasSideEffects
1583 //===----------------------------------------------------------------------===//
1584 // Move Instructions.
1587 let neverHasSideEffects = 1 in
1588 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1589 "mov", ".w\t$Rd, $Rm", []> {
1590 let Inst{31-27} = 0b11101;
1591 let Inst{26-25} = 0b01;
1592 let Inst{24-21} = 0b0010;
1593 let Inst{19-16} = 0b1111; // Rn
1594 let Inst{14-12} = 0b000;
1595 let Inst{7-4} = 0b0000;
1598 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1599 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1600 AddedComplexity = 1 in
1601 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1602 "mov", ".w\t$Rd, $imm",
1603 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1604 let Inst{31-27} = 0b11110;
1606 let Inst{24-21} = 0b0010;
1607 let Inst{19-16} = 0b1111; // Rn
1611 def : InstAlias<"mov${s}${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1612 pred:$p, cc_out:$s)>,
1613 Requires<[IsThumb2]>;
1615 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1616 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
1617 "movw", "\t$Rd, $imm",
1618 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1619 let Inst{31-27} = 0b11110;
1621 let Inst{24-21} = 0b0010;
1622 let Inst{20} = 0; // The S bit.
1628 let Inst{11-8} = Rd;
1629 let Inst{19-16} = imm{15-12};
1630 let Inst{26} = imm{11};
1631 let Inst{14-12} = imm{10-8};
1632 let Inst{7-0} = imm{7-0};
1635 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1636 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1638 let Constraints = "$src = $Rd" in {
1639 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1640 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
1641 "movt", "\t$Rd, $imm",
1643 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1644 let Inst{31-27} = 0b11110;
1646 let Inst{24-21} = 0b0110;
1647 let Inst{20} = 0; // The S bit.
1653 let Inst{11-8} = Rd;
1654 let Inst{19-16} = imm{15-12};
1655 let Inst{26} = imm{11};
1656 let Inst{14-12} = imm{10-8};
1657 let Inst{7-0} = imm{7-0};
1660 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1661 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1664 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1666 //===----------------------------------------------------------------------===//
1667 // Extend Instructions.
1672 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1673 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1674 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1675 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1676 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1678 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1679 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1680 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1681 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1682 defm t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
1684 // TODO: SXT(A){B|H}16 - done for disassembly only
1688 let AddedComplexity = 16 in {
1689 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1690 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1691 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1692 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1693 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1694 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1696 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1697 // The transformation should probably be done as a combiner action
1698 // instead so we can include a check for masking back in the upper
1699 // eight bits of the source into the lower eight bits of the result.
1700 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1701 // (t2UXTB16r_rot rGPR:$Src, 3)>,
1702 // Requires<[HasT2ExtractPack, IsThumb2]>;
1703 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1704 (t2UXTB16r_rot rGPR:$Src, 1)>,
1705 Requires<[HasT2ExtractPack, IsThumb2]>;
1707 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1708 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1709 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1710 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1711 defm t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">;
1714 //===----------------------------------------------------------------------===//
1715 // Arithmetic Instructions.
1718 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1719 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1720 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1721 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1723 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1724 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1725 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1726 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1727 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1728 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1729 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1731 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1732 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1733 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1734 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1735 defm t2ADCS : T2I_adde_sube_s_irs<BinOpFrag<(adde_live_carry node:$LHS,
1737 defm t2SBCS : T2I_adde_sube_s_irs<BinOpFrag<(sube_live_carry node:$LHS,
1741 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1742 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1743 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1744 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1746 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1747 // The assume-no-carry-in form uses the negation of the input since add/sub
1748 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1749 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1751 // The AddedComplexity preferences the first variant over the others since
1752 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1753 let AddedComplexity = 1 in
1754 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1755 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1756 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1757 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1758 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1759 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1760 let AddedComplexity = 1 in
1761 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1762 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1763 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1764 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1765 // The with-carry-in form matches bitwise not instead of the negation.
1766 // Effectively, the inverse interpretation of the carry flag already accounts
1767 // for part of the negation.
1768 let AddedComplexity = 1 in
1769 def : T2Pat<(adde_dead_carry rGPR:$src, imm0_255_not:$imm),
1770 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
1771 def : T2Pat<(adde_dead_carry rGPR:$src, t2_so_imm_not:$imm),
1772 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
1773 let AddedComplexity = 1 in
1774 def : T2Pat<(adde_live_carry rGPR:$src, imm0_255_not:$imm),
1775 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1776 def : T2Pat<(adde_live_carry rGPR:$src, t2_so_imm_not:$imm),
1777 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1779 // Select Bytes -- for disassembly only
1781 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1782 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []>,
1783 Requires<[IsThumb2, HasThumb2DSP]> {
1784 let Inst{31-27} = 0b11111;
1785 let Inst{26-24} = 0b010;
1787 let Inst{22-20} = 0b010;
1788 let Inst{15-12} = 0b1111;
1790 let Inst{6-4} = 0b000;
1793 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1794 // And Miscellaneous operations -- for disassembly only
1795 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1796 list<dag> pat = [/* For disassembly only; pattern left blank */],
1797 dag iops = (ins rGPR:$Rn, rGPR:$Rm),
1798 string asm = "\t$Rd, $Rn, $Rm">
1799 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
1800 Requires<[IsThumb2, HasThumb2DSP]> {
1801 let Inst{31-27} = 0b11111;
1802 let Inst{26-23} = 0b0101;
1803 let Inst{22-20} = op22_20;
1804 let Inst{15-12} = 0b1111;
1805 let Inst{7-4} = op7_4;
1811 let Inst{11-8} = Rd;
1812 let Inst{19-16} = Rn;
1816 // Saturating add/subtract -- for disassembly only
1818 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1819 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))],
1820 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1821 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1822 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1823 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1824 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [],
1825 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1826 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [],
1827 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1828 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1829 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1830 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))],
1831 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1832 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1833 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1834 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1835 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1836 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1837 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1838 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1839 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1841 // Signed/Unsigned add/subtract -- for disassembly only
1843 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1844 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1845 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1846 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1847 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1848 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1849 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1850 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1851 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1852 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1853 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1854 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1856 // Signed/Unsigned halving add/subtract -- for disassembly only
1858 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1859 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1860 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1861 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1862 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1863 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1864 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1865 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1866 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1867 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1868 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1869 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1871 // Helper class for disassembly only
1872 // A6.3.16 & A6.3.17
1873 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1874 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1875 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1876 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1877 let Inst{31-27} = 0b11111;
1878 let Inst{26-24} = 0b011;
1879 let Inst{23} = long;
1880 let Inst{22-20} = op22_20;
1881 let Inst{7-4} = op7_4;
1884 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1885 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1886 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1887 let Inst{31-27} = 0b11111;
1888 let Inst{26-24} = 0b011;
1889 let Inst{23} = long;
1890 let Inst{22-20} = op22_20;
1891 let Inst{7-4} = op7_4;
1894 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1896 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1897 (ins rGPR:$Rn, rGPR:$Rm),
1898 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>,
1899 Requires<[IsThumb2, HasThumb2DSP]> {
1900 let Inst{15-12} = 0b1111;
1902 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1903 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1904 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>,
1905 Requires<[IsThumb2, HasThumb2DSP]>;
1907 // Signed/Unsigned saturate -- for disassembly only
1909 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1910 string opc, string asm, list<dag> pattern>
1911 : T2I<oops, iops, itin, opc, asm, pattern> {
1917 let Inst{11-8} = Rd;
1918 let Inst{19-16} = Rn;
1919 let Inst{4-0} = sat_imm;
1920 let Inst{21} = sh{5};
1921 let Inst{14-12} = sh{4-2};
1922 let Inst{7-6} = sh{1-0};
1926 (outs rGPR:$Rd), (ins imm1_32:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1927 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1928 [/* For disassembly only; pattern left blank */]> {
1929 let Inst{31-27} = 0b11110;
1930 let Inst{25-22} = 0b1100;
1935 def t2SSAT16: T2SatI<
1936 (outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary,
1937 "ssat16", "\t$Rd, $sat_imm, $Rn",
1938 [/* For disassembly only; pattern left blank */]>,
1939 Requires<[IsThumb2, HasThumb2DSP]> {
1940 let Inst{31-27} = 0b11110;
1941 let Inst{25-22} = 0b1100;
1944 let Inst{21} = 1; // sh = '1'
1945 let Inst{14-12} = 0b000; // imm3 = '000'
1946 let Inst{7-6} = 0b00; // imm2 = '00'
1950 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1951 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
1952 [/* For disassembly only; pattern left blank */]> {
1953 let Inst{31-27} = 0b11110;
1954 let Inst{25-22} = 0b1110;
1959 def t2USAT16: T2SatI<(outs rGPR:$dst), (ins i32imm:$sat_imm, rGPR:$Rn),
1961 "usat16", "\t$dst, $sat_imm, $Rn",
1962 [/* For disassembly only; pattern left blank */]>,
1963 Requires<[IsThumb2, HasThumb2DSP]> {
1964 let Inst{31-27} = 0b11110;
1965 let Inst{25-22} = 0b1110;
1968 let Inst{21} = 1; // sh = '1'
1969 let Inst{14-12} = 0b000; // imm3 = '000'
1970 let Inst{7-6} = 0b00; // imm2 = '00'
1973 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
1974 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
1976 //===----------------------------------------------------------------------===//
1977 // Shift and rotate Instructions.
1980 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
1981 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
1982 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
1983 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
1985 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
1986 def : Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
1987 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
1989 let Uses = [CPSR] in {
1990 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
1991 "rrx", "\t$Rd, $Rm",
1992 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
1993 let Inst{31-27} = 0b11101;
1994 let Inst{26-25} = 0b01;
1995 let Inst{24-21} = 0b0010;
1996 let Inst{19-16} = 0b1111; // Rn
1997 let Inst{14-12} = 0b000;
1998 let Inst{7-4} = 0b0011;
2002 let isCodeGenOnly = 1, Defs = [CPSR] in {
2003 def t2MOVsrl_flag : T2TwoRegShiftImm<
2004 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2005 "lsrs", ".w\t$Rd, $Rm, #1",
2006 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2007 let Inst{31-27} = 0b11101;
2008 let Inst{26-25} = 0b01;
2009 let Inst{24-21} = 0b0010;
2010 let Inst{20} = 1; // The S bit.
2011 let Inst{19-16} = 0b1111; // Rn
2012 let Inst{5-4} = 0b01; // Shift type.
2013 // Shift amount = Inst{14-12:7-6} = 1.
2014 let Inst{14-12} = 0b000;
2015 let Inst{7-6} = 0b01;
2017 def t2MOVsra_flag : T2TwoRegShiftImm<
2018 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2019 "asrs", ".w\t$Rd, $Rm, #1",
2020 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2021 let Inst{31-27} = 0b11101;
2022 let Inst{26-25} = 0b01;
2023 let Inst{24-21} = 0b0010;
2024 let Inst{20} = 1; // The S bit.
2025 let Inst{19-16} = 0b1111; // Rn
2026 let Inst{5-4} = 0b10; // Shift type.
2027 // Shift amount = Inst{14-12:7-6} = 1.
2028 let Inst{14-12} = 0b000;
2029 let Inst{7-6} = 0b01;
2033 //===----------------------------------------------------------------------===//
2034 // Bitwise Instructions.
2037 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2038 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2039 BinOpFrag<(and node:$LHS, node:$RHS)>, "t2AND", 1>;
2040 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2041 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2042 BinOpFrag<(or node:$LHS, node:$RHS)>, "t2ORR", 1>;
2043 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2044 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2045 BinOpFrag<(xor node:$LHS, node:$RHS)>, "t2EOR", 1>;
2047 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2048 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2049 BinOpFrag<(and node:$LHS, (not node:$RHS))>,
2052 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2053 string opc, string asm, list<dag> pattern>
2054 : T2I<oops, iops, itin, opc, asm, pattern> {
2059 let Inst{11-8} = Rd;
2060 let Inst{4-0} = msb{4-0};
2061 let Inst{14-12} = lsb{4-2};
2062 let Inst{7-6} = lsb{1-0};
2065 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2066 string opc, string asm, list<dag> pattern>
2067 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2070 let Inst{19-16} = Rn;
2073 let Constraints = "$src = $Rd" in
2074 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2075 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2076 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2077 let Inst{31-27} = 0b11110;
2078 let Inst{26} = 0; // should be 0.
2080 let Inst{24-20} = 0b10110;
2081 let Inst{19-16} = 0b1111; // Rn
2083 let Inst{5} = 0; // should be 0.
2086 let msb{4-0} = imm{9-5};
2087 let lsb{4-0} = imm{4-0};
2090 def t2SBFX: T2TwoRegBitFI<
2091 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2092 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2093 let Inst{31-27} = 0b11110;
2095 let Inst{24-20} = 0b10100;
2099 def t2UBFX: T2TwoRegBitFI<
2100 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2101 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2102 let Inst{31-27} = 0b11110;
2104 let Inst{24-20} = 0b11100;
2108 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2109 let Constraints = "$src = $Rd" in {
2110 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2111 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2112 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2113 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2114 bf_inv_mask_imm:$imm))]> {
2115 let Inst{31-27} = 0b11110;
2116 let Inst{26} = 0; // should be 0.
2118 let Inst{24-20} = 0b10110;
2120 let Inst{5} = 0; // should be 0.
2123 let msb{4-0} = imm{9-5};
2124 let lsb{4-0} = imm{4-0};
2127 // GNU as only supports this form of bfi (w/ 4 arguments)
2128 let isAsmParserOnly = 1 in
2129 def t2BFI4p : T2TwoRegBitFI<(outs rGPR:$Rd),
2130 (ins rGPR:$src, rGPR:$Rn, lsb_pos_imm:$lsbit,
2132 IIC_iBITi, "bfi", "\t$Rd, $Rn, $lsbit, $width",
2134 let Inst{31-27} = 0b11110;
2135 let Inst{26} = 0; // should be 0.
2137 let Inst{24-20} = 0b10110;
2139 let Inst{5} = 0; // should be 0.
2143 let msb{4-0} = width; // Custom encoder => lsb+width-1
2144 let lsb{4-0} = lsbit;
2148 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2149 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2150 BinOpFrag<(or node:$LHS, (not node:$RHS))>,
2153 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2154 let AddedComplexity = 1 in
2155 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2156 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2157 UnOpFrag<(not node:$Src)>, 1, 1>;
2160 let AddedComplexity = 1 in
2161 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2162 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2164 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2165 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2166 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2167 Requires<[IsThumb2]>;
2169 def : T2Pat<(t2_so_imm_not:$src),
2170 (t2MVNi t2_so_imm_not:$src)>;
2172 //===----------------------------------------------------------------------===//
2173 // Multiply Instructions.
2175 let isCommutable = 1 in
2176 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2177 "mul", "\t$Rd, $Rn, $Rm",
2178 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2179 let Inst{31-27} = 0b11111;
2180 let Inst{26-23} = 0b0110;
2181 let Inst{22-20} = 0b000;
2182 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2183 let Inst{7-4} = 0b0000; // Multiply
2186 def t2MLA: T2FourReg<
2187 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2188 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2189 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2190 let Inst{31-27} = 0b11111;
2191 let Inst{26-23} = 0b0110;
2192 let Inst{22-20} = 0b000;
2193 let Inst{7-4} = 0b0000; // Multiply
2196 def t2MLS: T2FourReg<
2197 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2198 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2199 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2200 let Inst{31-27} = 0b11111;
2201 let Inst{26-23} = 0b0110;
2202 let Inst{22-20} = 0b000;
2203 let Inst{7-4} = 0b0001; // Multiply and Subtract
2206 // Extra precision multiplies with low / high results
2207 let neverHasSideEffects = 1 in {
2208 let isCommutable = 1 in {
2209 def t2SMULL : T2MulLong<0b000, 0b0000,
2210 (outs rGPR:$Rd, rGPR:$Ra),
2211 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2212 "smull", "\t$Rd, $Ra, $Rn, $Rm", []>;
2214 def t2UMULL : T2MulLong<0b010, 0b0000,
2215 (outs rGPR:$RdLo, rGPR:$RdHi),
2216 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2217 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2220 // Multiply + accumulate
2221 def t2SMLAL : T2MulLong<0b100, 0b0000,
2222 (outs rGPR:$RdLo, rGPR:$RdHi),
2223 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2224 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2226 def t2UMLAL : T2MulLong<0b110, 0b0000,
2227 (outs rGPR:$RdLo, rGPR:$RdHi),
2228 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2229 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2231 def t2UMAAL : T2MulLong<0b110, 0b0110,
2232 (outs rGPR:$RdLo, rGPR:$RdHi),
2233 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2234 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2235 Requires<[IsThumb2, HasThumb2DSP]>;
2236 } // neverHasSideEffects
2238 // Rounding variants of the below included for disassembly only
2240 // Most significant word multiply
2241 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2242 "smmul", "\t$Rd, $Rn, $Rm",
2243 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]>,
2244 Requires<[IsThumb2, HasThumb2DSP]> {
2245 let Inst{31-27} = 0b11111;
2246 let Inst{26-23} = 0b0110;
2247 let Inst{22-20} = 0b101;
2248 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2249 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2252 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2253 "smmulr", "\t$Rd, $Rn, $Rm", []>,
2254 Requires<[IsThumb2, HasThumb2DSP]> {
2255 let Inst{31-27} = 0b11111;
2256 let Inst{26-23} = 0b0110;
2257 let Inst{22-20} = 0b101;
2258 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2259 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2262 def t2SMMLA : T2FourReg<
2263 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2264 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2265 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>,
2266 Requires<[IsThumb2, HasThumb2DSP]> {
2267 let Inst{31-27} = 0b11111;
2268 let Inst{26-23} = 0b0110;
2269 let Inst{22-20} = 0b101;
2270 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2273 def t2SMMLAR: T2FourReg<
2274 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2275 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
2276 Requires<[IsThumb2, HasThumb2DSP]> {
2277 let Inst{31-27} = 0b11111;
2278 let Inst{26-23} = 0b0110;
2279 let Inst{22-20} = 0b101;
2280 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2283 def t2SMMLS: T2FourReg<
2284 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2285 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2286 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>,
2287 Requires<[IsThumb2, HasThumb2DSP]> {
2288 let Inst{31-27} = 0b11111;
2289 let Inst{26-23} = 0b0110;
2290 let Inst{22-20} = 0b110;
2291 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2294 def t2SMMLSR:T2FourReg<
2295 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2296 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
2297 Requires<[IsThumb2, HasThumb2DSP]> {
2298 let Inst{31-27} = 0b11111;
2299 let Inst{26-23} = 0b0110;
2300 let Inst{22-20} = 0b110;
2301 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2304 multiclass T2I_smul<string opc, PatFrag opnode> {
2305 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2306 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2307 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2308 (sext_inreg rGPR:$Rm, i16)))]>,
2309 Requires<[IsThumb2, HasThumb2DSP]> {
2310 let Inst{31-27} = 0b11111;
2311 let Inst{26-23} = 0b0110;
2312 let Inst{22-20} = 0b001;
2313 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2314 let Inst{7-6} = 0b00;
2315 let Inst{5-4} = 0b00;
2318 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2319 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2320 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2321 (sra rGPR:$Rm, (i32 16))))]>,
2322 Requires<[IsThumb2, HasThumb2DSP]> {
2323 let Inst{31-27} = 0b11111;
2324 let Inst{26-23} = 0b0110;
2325 let Inst{22-20} = 0b001;
2326 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2327 let Inst{7-6} = 0b00;
2328 let Inst{5-4} = 0b01;
2331 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2332 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2333 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2334 (sext_inreg rGPR:$Rm, i16)))]>,
2335 Requires<[IsThumb2, HasThumb2DSP]> {
2336 let Inst{31-27} = 0b11111;
2337 let Inst{26-23} = 0b0110;
2338 let Inst{22-20} = 0b001;
2339 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2340 let Inst{7-6} = 0b00;
2341 let Inst{5-4} = 0b10;
2344 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2345 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2346 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2347 (sra rGPR:$Rm, (i32 16))))]>,
2348 Requires<[IsThumb2, HasThumb2DSP]> {
2349 let Inst{31-27} = 0b11111;
2350 let Inst{26-23} = 0b0110;
2351 let Inst{22-20} = 0b001;
2352 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2353 let Inst{7-6} = 0b00;
2354 let Inst{5-4} = 0b11;
2357 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2358 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2359 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2360 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]>,
2361 Requires<[IsThumb2, HasThumb2DSP]> {
2362 let Inst{31-27} = 0b11111;
2363 let Inst{26-23} = 0b0110;
2364 let Inst{22-20} = 0b011;
2365 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2366 let Inst{7-6} = 0b00;
2367 let Inst{5-4} = 0b00;
2370 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2371 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2372 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2373 (sra rGPR:$Rm, (i32 16))), (i32 16)))]>,
2374 Requires<[IsThumb2, HasThumb2DSP]> {
2375 let Inst{31-27} = 0b11111;
2376 let Inst{26-23} = 0b0110;
2377 let Inst{22-20} = 0b011;
2378 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2379 let Inst{7-6} = 0b00;
2380 let Inst{5-4} = 0b01;
2385 multiclass T2I_smla<string opc, PatFrag opnode> {
2387 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2388 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2389 [(set rGPR:$Rd, (add rGPR:$Ra,
2390 (opnode (sext_inreg rGPR:$Rn, i16),
2391 (sext_inreg rGPR:$Rm, i16))))]>,
2392 Requires<[IsThumb2, HasThumb2DSP]> {
2393 let Inst{31-27} = 0b11111;
2394 let Inst{26-23} = 0b0110;
2395 let Inst{22-20} = 0b001;
2396 let Inst{7-6} = 0b00;
2397 let Inst{5-4} = 0b00;
2401 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2402 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2403 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2404 (sra rGPR:$Rm, (i32 16)))))]>,
2405 Requires<[IsThumb2, HasThumb2DSP]> {
2406 let Inst{31-27} = 0b11111;
2407 let Inst{26-23} = 0b0110;
2408 let Inst{22-20} = 0b001;
2409 let Inst{7-6} = 0b00;
2410 let Inst{5-4} = 0b01;
2414 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2415 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2416 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2417 (sext_inreg rGPR:$Rm, i16))))]>,
2418 Requires<[IsThumb2, HasThumb2DSP]> {
2419 let Inst{31-27} = 0b11111;
2420 let Inst{26-23} = 0b0110;
2421 let Inst{22-20} = 0b001;
2422 let Inst{7-6} = 0b00;
2423 let Inst{5-4} = 0b10;
2427 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2428 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2429 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2430 (sra rGPR:$Rm, (i32 16)))))]>,
2431 Requires<[IsThumb2, HasThumb2DSP]> {
2432 let Inst{31-27} = 0b11111;
2433 let Inst{26-23} = 0b0110;
2434 let Inst{22-20} = 0b001;
2435 let Inst{7-6} = 0b00;
2436 let Inst{5-4} = 0b11;
2440 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2441 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2442 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2443 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]>,
2444 Requires<[IsThumb2, HasThumb2DSP]> {
2445 let Inst{31-27} = 0b11111;
2446 let Inst{26-23} = 0b0110;
2447 let Inst{22-20} = 0b011;
2448 let Inst{7-6} = 0b00;
2449 let Inst{5-4} = 0b00;
2453 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2454 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2455 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2456 (sra rGPR:$Rm, (i32 16))), (i32 16))))]>,
2457 Requires<[IsThumb2, HasThumb2DSP]> {
2458 let Inst{31-27} = 0b11111;
2459 let Inst{26-23} = 0b0110;
2460 let Inst{22-20} = 0b011;
2461 let Inst{7-6} = 0b00;
2462 let Inst{5-4} = 0b01;
2466 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2467 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2469 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2470 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2471 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2472 [/* For disassembly only; pattern left blank */]>,
2473 Requires<[IsThumb2, HasThumb2DSP]>;
2474 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2475 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2476 [/* For disassembly only; pattern left blank */]>,
2477 Requires<[IsThumb2, HasThumb2DSP]>;
2478 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2479 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2480 [/* For disassembly only; pattern left blank */]>,
2481 Requires<[IsThumb2, HasThumb2DSP]>;
2482 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2483 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2484 [/* For disassembly only; pattern left blank */]>,
2485 Requires<[IsThumb2, HasThumb2DSP]>;
2487 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2488 // These are for disassembly only.
2490 def t2SMUAD: T2ThreeReg_mac<
2491 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2492 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>,
2493 Requires<[IsThumb2, HasThumb2DSP]> {
2494 let Inst{15-12} = 0b1111;
2496 def t2SMUADX:T2ThreeReg_mac<
2497 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2498 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []>,
2499 Requires<[IsThumb2, HasThumb2DSP]> {
2500 let Inst{15-12} = 0b1111;
2502 def t2SMUSD: T2ThreeReg_mac<
2503 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2504 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []>,
2505 Requires<[IsThumb2, HasThumb2DSP]> {
2506 let Inst{15-12} = 0b1111;
2508 def t2SMUSDX:T2ThreeReg_mac<
2509 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2510 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []>,
2511 Requires<[IsThumb2, HasThumb2DSP]> {
2512 let Inst{15-12} = 0b1111;
2514 def t2SMLAD : T2ThreeReg_mac<
2515 0, 0b010, 0b0000, (outs rGPR:$Rd),
2516 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2517 "\t$Rd, $Rn, $Rm, $Ra", []>,
2518 Requires<[IsThumb2, HasThumb2DSP]>;
2519 def t2SMLADX : T2FourReg_mac<
2520 0, 0b010, 0b0001, (outs rGPR:$Rd),
2521 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2522 "\t$Rd, $Rn, $Rm, $Ra", []>,
2523 Requires<[IsThumb2, HasThumb2DSP]>;
2524 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2525 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2526 "\t$Rd, $Rn, $Rm, $Ra", []>,
2527 Requires<[IsThumb2, HasThumb2DSP]>;
2528 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2529 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2530 "\t$Rd, $Rn, $Rm, $Ra", []>,
2531 Requires<[IsThumb2, HasThumb2DSP]>;
2532 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2533 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2534 "\t$Ra, $Rd, $Rm, $Rn", []>,
2535 Requires<[IsThumb2, HasThumb2DSP]>;
2536 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2537 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2538 "\t$Ra, $Rd, $Rm, $Rn", []>,
2539 Requires<[IsThumb2, HasThumb2DSP]>;
2540 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2541 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2542 "\t$Ra, $Rd, $Rm, $Rn", []>,
2543 Requires<[IsThumb2, HasThumb2DSP]>;
2544 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2545 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2546 "\t$Ra, $Rd, $Rm, $Rn", []>,
2547 Requires<[IsThumb2, HasThumb2DSP]>;
2549 //===----------------------------------------------------------------------===//
2550 // Division Instructions.
2551 // Signed and unsigned division on v7-M
2553 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2554 "sdiv", "\t$Rd, $Rn, $Rm",
2555 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
2556 Requires<[HasDivide, IsThumb2]> {
2557 let Inst{31-27} = 0b11111;
2558 let Inst{26-21} = 0b011100;
2560 let Inst{15-12} = 0b1111;
2561 let Inst{7-4} = 0b1111;
2564 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2565 "udiv", "\t$Rd, $Rn, $Rm",
2566 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
2567 Requires<[HasDivide, IsThumb2]> {
2568 let Inst{31-27} = 0b11111;
2569 let Inst{26-21} = 0b011101;
2571 let Inst{15-12} = 0b1111;
2572 let Inst{7-4} = 0b1111;
2575 //===----------------------------------------------------------------------===//
2576 // Misc. Arithmetic Instructions.
2579 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2580 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2581 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2582 let Inst{31-27} = 0b11111;
2583 let Inst{26-22} = 0b01010;
2584 let Inst{21-20} = op1;
2585 let Inst{15-12} = 0b1111;
2586 let Inst{7-6} = 0b10;
2587 let Inst{5-4} = op2;
2591 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2592 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2594 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2595 "rbit", "\t$Rd, $Rm",
2596 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2598 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2599 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2601 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2602 "rev16", ".w\t$Rd, $Rm",
2603 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>;
2605 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2606 "revsh", ".w\t$Rd, $Rm",
2607 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>;
2609 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
2610 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
2611 (t2REVSH rGPR:$Rm)>;
2613 def t2PKHBT : T2ThreeReg<
2614 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
2615 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm, lsl $sh",
2616 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2617 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
2619 Requires<[HasT2ExtractPack, IsThumb2]> {
2620 let Inst{31-27} = 0b11101;
2621 let Inst{26-25} = 0b01;
2622 let Inst{24-20} = 0b01100;
2623 let Inst{5} = 0; // BT form
2627 let Inst{14-12} = sh{4-2};
2628 let Inst{7-6} = sh{1-0};
2631 // Alternate cases for PKHBT where identities eliminate some nodes.
2632 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2633 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2634 Requires<[HasT2ExtractPack, IsThumb2]>;
2635 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2636 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2637 Requires<[HasT2ExtractPack, IsThumb2]>;
2639 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2640 // will match the pattern below.
2641 def t2PKHTB : T2ThreeReg<
2642 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
2643 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm, asr $sh",
2644 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2645 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
2647 Requires<[HasT2ExtractPack, IsThumb2]> {
2648 let Inst{31-27} = 0b11101;
2649 let Inst{26-25} = 0b01;
2650 let Inst{24-20} = 0b01100;
2651 let Inst{5} = 1; // TB form
2655 let Inst{14-12} = sh{4-2};
2656 let Inst{7-6} = sh{1-0};
2659 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2660 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2661 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2662 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2663 Requires<[HasT2ExtractPack, IsThumb2]>;
2664 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2665 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2666 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
2667 Requires<[HasT2ExtractPack, IsThumb2]>;
2669 //===----------------------------------------------------------------------===//
2670 // Comparison Instructions...
2672 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2673 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2674 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2676 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_imm:$imm),
2677 (t2CMPri GPR:$lhs, t2_so_imm:$imm)>;
2678 def : T2Pat<(ARMcmpZ GPR:$lhs, rGPR:$rhs),
2679 (t2CMPrr GPR:$lhs, rGPR:$rhs)>;
2680 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_reg:$rhs),
2681 (t2CMPrs GPR:$lhs, t2_so_reg:$rhs)>;
2683 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2684 // Compare-to-zero still works out, just not the relationals
2685 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2686 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2687 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2688 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2689 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2691 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2692 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2694 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2695 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2697 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2698 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2699 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2700 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2701 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2702 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2704 // Conditional moves
2705 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2706 // a two-value operand where a dag node expects two operands. :(
2707 let neverHasSideEffects = 1 in {
2708 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
2709 (ins rGPR:$false, rGPR:$Rm, pred:$p),
2711 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2712 RegConstraint<"$false = $Rd">;
2714 let isMoveImm = 1 in
2715 def t2MOVCCi : t2PseudoInst<(outs rGPR:$Rd),
2716 (ins rGPR:$false, t2_so_imm:$imm, pred:$p),
2718 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2719 RegConstraint<"$false = $Rd">;
2721 // FIXME: Pseudo-ize these. For now, just mark codegen only.
2722 let isCodeGenOnly = 1 in {
2723 let isMoveImm = 1 in
2724 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, imm0_65535_expr:$imm),
2726 "movw", "\t$Rd, $imm", []>,
2727 RegConstraint<"$false = $Rd"> {
2728 let Inst{31-27} = 0b11110;
2730 let Inst{24-21} = 0b0010;
2731 let Inst{20} = 0; // The S bit.
2737 let Inst{11-8} = Rd;
2738 let Inst{19-16} = imm{15-12};
2739 let Inst{26} = imm{11};
2740 let Inst{14-12} = imm{10-8};
2741 let Inst{7-0} = imm{7-0};
2744 let isMoveImm = 1 in
2745 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2746 (ins rGPR:$false, i32imm:$src, pred:$p),
2747 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2749 let isMoveImm = 1 in
2750 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2751 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2752 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2753 imm:$cc, CCR:$ccr))*/]>,
2754 RegConstraint<"$false = $Rd"> {
2755 let Inst{31-27} = 0b11110;
2757 let Inst{24-21} = 0b0011;
2758 let Inst{20} = 0; // The S bit.
2759 let Inst{19-16} = 0b1111; // Rn
2763 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2764 string opc, string asm, list<dag> pattern>
2765 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2766 let Inst{31-27} = 0b11101;
2767 let Inst{26-25} = 0b01;
2768 let Inst{24-21} = 0b0010;
2769 let Inst{20} = 0; // The S bit.
2770 let Inst{19-16} = 0b1111; // Rn
2771 let Inst{5-4} = opcod; // Shift type.
2773 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2774 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2775 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2776 RegConstraint<"$false = $Rd">;
2777 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2778 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2779 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2780 RegConstraint<"$false = $Rd">;
2781 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2782 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2783 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2784 RegConstraint<"$false = $Rd">;
2785 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2786 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2787 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2788 RegConstraint<"$false = $Rd">;
2789 } // isCodeGenOnly = 1
2790 } // neverHasSideEffects
2792 //===----------------------------------------------------------------------===//
2793 // Atomic operations intrinsics
2796 // memory barriers protect the atomic sequences
2797 let hasSideEffects = 1 in {
2798 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2799 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2800 Requires<[IsThumb, HasDB]> {
2802 let Inst{31-4} = 0xf3bf8f5;
2803 let Inst{3-0} = opt;
2807 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2809 [/* For disassembly only; pattern left blank */]>,
2810 Requires<[IsThumb, HasDB]> {
2812 let Inst{31-4} = 0xf3bf8f4;
2813 let Inst{3-0} = opt;
2816 // ISB has only full system option -- for disassembly only
2817 def t2ISB : AInoP<(outs), (ins), ThumbFrm, NoItinerary, "isb", "",
2818 [/* For disassembly only; pattern left blank */]>,
2819 Requires<[IsThumb2, HasV7]> {
2820 let Inst{31-4} = 0xf3bf8f6;
2821 let Inst{3-0} = 0b1111;
2824 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
2825 InstrItinClass itin, string opc, string asm, string cstr,
2826 list<dag> pattern, bits<4> rt2 = 0b1111>
2827 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2828 let Inst{31-27} = 0b11101;
2829 let Inst{26-20} = 0b0001101;
2830 let Inst{11-8} = rt2;
2831 let Inst{7-6} = 0b01;
2832 let Inst{5-4} = opcod;
2833 let Inst{3-0} = 0b1111;
2837 let Inst{19-16} = addr;
2838 let Inst{15-12} = Rt;
2840 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
2841 InstrItinClass itin, string opc, string asm, string cstr,
2842 list<dag> pattern, bits<4> rt2 = 0b1111>
2843 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2844 let Inst{31-27} = 0b11101;
2845 let Inst{26-20} = 0b0001100;
2846 let Inst{11-8} = rt2;
2847 let Inst{7-6} = 0b01;
2848 let Inst{5-4} = opcod;
2854 let Inst{19-16} = addr;
2855 let Inst{15-12} = Rt;
2858 let mayLoad = 1 in {
2859 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2860 AddrModeNone, 4, NoItinerary,
2861 "ldrexb", "\t$Rt, $addr", "", []>;
2862 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2863 AddrModeNone, 4, NoItinerary,
2864 "ldrexh", "\t$Rt, $addr", "", []>;
2865 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2866 AddrModeNone, 4, NoItinerary,
2867 "ldrex", "\t$Rt, $addr", "", []> {
2868 let Inst{31-27} = 0b11101;
2869 let Inst{26-20} = 0b0000101;
2870 let Inst{11-8} = 0b1111;
2871 let Inst{7-0} = 0b00000000; // imm8 = 0
2875 let Inst{19-16} = addr;
2876 let Inst{15-12} = Rt;
2878 let hasExtraDefRegAllocReq = 1 in
2879 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
2880 (ins t2addrmode_reg:$addr),
2881 AddrModeNone, 4, NoItinerary,
2882 "ldrexd", "\t$Rt, $Rt2, $addr", "",
2885 let Inst{11-8} = Rt2;
2889 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2890 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
2891 (ins rGPR:$Rt, t2addrmode_reg:$addr),
2892 AddrModeNone, 4, NoItinerary,
2893 "strexb", "\t$Rd, $Rt, $addr", "", []>;
2894 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
2895 (ins rGPR:$Rt, t2addrmode_reg:$addr),
2896 AddrModeNone, 4, NoItinerary,
2897 "strexh", "\t$Rd, $Rt, $addr", "", []>;
2898 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, t2addrmode_reg:$addr),
2899 AddrModeNone, 4, NoItinerary,
2900 "strex", "\t$Rd, $Rt, $addr", "",
2902 let Inst{31-27} = 0b11101;
2903 let Inst{26-20} = 0b0000100;
2904 let Inst{7-0} = 0b00000000; // imm8 = 0
2909 let Inst{11-8} = Rd;
2910 let Inst{19-16} = addr;
2911 let Inst{15-12} = Rt;
2915 let hasExtraSrcRegAllocReq = 1, Constraints = "@earlyclobber $Rd" in
2916 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2917 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_reg:$addr),
2918 AddrModeNone, 4, NoItinerary,
2919 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
2922 let Inst{11-8} = Rt2;
2925 // Clear-Exclusive is for disassembly only.
2926 def t2CLREX : T2XI<(outs), (ins), NoItinerary, "clrex",
2927 [/* For disassembly only; pattern left blank */]>,
2928 Requires<[IsThumb2, HasV7]> {
2929 let Inst{31-16} = 0xf3bf;
2930 let Inst{15-14} = 0b10;
2933 let Inst{11-8} = 0b1111;
2934 let Inst{7-4} = 0b0010;
2935 let Inst{3-0} = 0b1111;
2938 //===----------------------------------------------------------------------===//
2939 // SJLJ Exception handling intrinsics
2940 // eh_sjlj_setjmp() is an instruction sequence to store the return
2941 // address and save #0 in R0 for the non-longjmp case.
2942 // Since by its nature we may be coming from some other function to get
2943 // here, and we're using the stack frame for the containing function to
2944 // save/restore registers, we can't keep anything live in regs across
2945 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2946 // when we get here from a longjmp(). We force everything out of registers
2947 // except for our own input by listing the relevant registers in Defs. By
2948 // doing so, we also cause the prologue/epilogue code to actively preserve
2949 // all of the callee-saved resgisters, which is exactly what we want.
2950 // $val is a scratch register for our use.
2952 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
2953 QQQQ0, QQQQ1, QQQQ2, QQQQ3 ],
2954 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2955 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2956 AddrModeNone, 0, NoItinerary, "", "",
2957 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2958 Requires<[IsThumb2, HasVFP2]>;
2962 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
2963 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2964 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2965 AddrModeNone, 0, NoItinerary, "", "",
2966 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2967 Requires<[IsThumb2, NoVFP]>;
2971 //===----------------------------------------------------------------------===//
2972 // Control-Flow Instructions
2975 // FIXME: remove when we have a way to marking a MI with these properties.
2976 // FIXME: Should pc be an implicit operand like PICADD, etc?
2977 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2978 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2979 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2980 reglist:$regs, variable_ops),
2981 4, IIC_iLoad_mBr, [],
2982 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
2983 RegConstraint<"$Rn = $wb">;
2985 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2986 let isPredicable = 1 in
2987 def t2B : T2XI<(outs), (ins uncondbrtarget:$target), IIC_Br,
2989 [(br bb:$target)]> {
2990 let Inst{31-27} = 0b11110;
2991 let Inst{15-14} = 0b10;
2995 let Inst{26} = target{19};
2996 let Inst{11} = target{18};
2997 let Inst{13} = target{17};
2998 let Inst{21-16} = target{16-11};
2999 let Inst{10-0} = target{10-0};
3002 let isNotDuplicable = 1, isIndirectBranch = 1 in {
3003 def t2BR_JT : t2PseudoInst<(outs),
3004 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3006 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
3008 // FIXME: Add a non-pc based case that can be predicated.
3009 def t2TBB_JT : t2PseudoInst<(outs),
3010 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3013 def t2TBH_JT : t2PseudoInst<(outs),
3014 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3017 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3018 "tbb", "\t[$Rn, $Rm]", []> {
3021 let Inst{31-20} = 0b111010001101;
3022 let Inst{19-16} = Rn;
3023 let Inst{15-5} = 0b11110000000;
3024 let Inst{4} = 0; // B form
3028 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3029 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3032 let Inst{31-20} = 0b111010001101;
3033 let Inst{19-16} = Rn;
3034 let Inst{15-5} = 0b11110000000;
3035 let Inst{4} = 1; // H form
3038 } // isNotDuplicable, isIndirectBranch
3040 } // isBranch, isTerminator, isBarrier
3042 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3043 // a two-value operand where a dag node expects two operands. :(
3044 let isBranch = 1, isTerminator = 1 in
3045 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3047 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3048 let Inst{31-27} = 0b11110;
3049 let Inst{15-14} = 0b10;
3053 let Inst{25-22} = p;
3056 let Inst{26} = target{20};
3057 let Inst{11} = target{19};
3058 let Inst{13} = target{18};
3059 let Inst{21-16} = target{17-12};
3060 let Inst{10-0} = target{11-1};
3063 // Tail calls. The Darwin version of thumb tail calls uses a t2 branch, so
3065 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3067 let Defs = [R0, R1, R2, R3, R9, R12, QQQQ0, QQQQ2, QQQQ3, PC],
3069 def tTAILJMPd: tPseudoExpand<(outs), (ins uncondbrtarget:$dst, variable_ops),
3071 (t2B uncondbrtarget:$dst)>,
3072 Requires<[IsThumb2, IsDarwin]>;
3076 let Defs = [ITSTATE] in
3077 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3078 AddrModeNone, 2, IIC_iALUx,
3079 "it$mask\t$cc", "", []> {
3080 // 16-bit instruction.
3081 let Inst{31-16} = 0x0000;
3082 let Inst{15-8} = 0b10111111;
3087 let Inst{3-0} = mask;
3090 // Branch and Exchange Jazelle -- for disassembly only
3092 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3093 [/* For disassembly only; pattern left blank */]> {
3094 let Inst{31-27} = 0b11110;
3096 let Inst{25-20} = 0b111100;
3097 let Inst{15-14} = 0b10;
3101 let Inst{19-16} = func;
3104 // Change Processor State is a system instruction -- for disassembly and
3106 // FIXME: Since the asm parser has currently no clean way to handle optional
3107 // operands, create 3 versions of the same instruction. Once there's a clean
3108 // framework to represent optional operands, change this behavior.
3109 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3110 !strconcat("cps", asm_op),
3111 [/* For disassembly only; pattern left blank */]> {
3117 let Inst{31-27} = 0b11110;
3119 let Inst{25-20} = 0b111010;
3120 let Inst{19-16} = 0b1111;
3121 let Inst{15-14} = 0b10;
3123 let Inst{10-9} = imod;
3125 let Inst{7-5} = iflags;
3126 let Inst{4-0} = mode;
3130 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3131 "$imod.w\t$iflags, $mode">;
3132 let mode = 0, M = 0 in
3133 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3134 "$imod.w\t$iflags">;
3135 let imod = 0, iflags = 0, M = 1 in
3136 def t2CPS1p : t2CPS<(ins i32imm:$mode), "\t$mode">;
3138 // A6.3.4 Branches and miscellaneous control
3139 // Table A6-14 Change Processor State, and hint instructions
3140 // Helper class for disassembly only.
3141 class T2I_hint<bits<8> op7_0, string opc, string asm>
3142 : T2I<(outs), (ins), NoItinerary, opc, asm,
3143 [/* For disassembly only; pattern left blank */]> {
3144 let Inst{31-20} = 0xf3a;
3145 let Inst{19-16} = 0b1111;
3146 let Inst{15-14} = 0b10;
3148 let Inst{10-8} = 0b000;
3149 let Inst{7-0} = op7_0;
3152 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3153 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3154 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3155 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3156 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3158 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
3159 let Inst{31-20} = 0xf3a;
3160 let Inst{15-14} = 0b10;
3162 let Inst{10-8} = 0b000;
3163 let Inst{7-4} = 0b1111;
3166 let Inst{3-0} = opt;
3169 // Secure Monitor Call is a system instruction -- for disassembly only
3170 // Option = Inst{19-16}
3171 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
3172 [/* For disassembly only; pattern left blank */]> {
3173 let Inst{31-27} = 0b11110;
3174 let Inst{26-20} = 0b1111111;
3175 let Inst{15-12} = 0b1000;
3178 let Inst{19-16} = opt;
3181 class T2SRS<bits<12> op31_20,
3182 dag oops, dag iops, InstrItinClass itin,
3183 string opc, string asm, list<dag> pattern>
3184 : T2I<oops, iops, itin, opc, asm, pattern> {
3185 let Inst{31-20} = op31_20{11-0};
3188 let Inst{4-0} = mode{4-0};
3191 // Store Return State is a system instruction -- for disassembly only
3192 def t2SRSDBW : T2SRS<0b111010000010,
3193 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3194 [/* For disassembly only; pattern left blank */]>;
3195 def t2SRSDB : T2SRS<0b111010000000,
3196 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3197 [/* For disassembly only; pattern left blank */]>;
3198 def t2SRSIAW : T2SRS<0b111010011010,
3199 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3200 [/* For disassembly only; pattern left blank */]>;
3201 def t2SRSIA : T2SRS<0b111010011000,
3202 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3203 [/* For disassembly only; pattern left blank */]>;
3205 // Return From Exception is a system instruction -- for disassembly only
3207 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3208 string opc, string asm, list<dag> pattern>
3209 : T2I<oops, iops, itin, opc, asm, pattern> {
3210 let Inst{31-20} = op31_20{11-0};
3213 let Inst{19-16} = Rn;
3214 let Inst{15-0} = 0xc000;
3217 def t2RFEDBW : T2RFE<0b111010000011,
3218 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3219 [/* For disassembly only; pattern left blank */]>;
3220 def t2RFEDB : T2RFE<0b111010000001,
3221 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3222 [/* For disassembly only; pattern left blank */]>;
3223 def t2RFEIAW : T2RFE<0b111010011011,
3224 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3225 [/* For disassembly only; pattern left blank */]>;
3226 def t2RFEIA : T2RFE<0b111010011001,
3227 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3228 [/* For disassembly only; pattern left blank */]>;
3230 //===----------------------------------------------------------------------===//
3231 // Non-Instruction Patterns
3234 // 32-bit immediate using movw + movt.
3235 // This is a single pseudo instruction to make it re-materializable.
3236 // FIXME: Remove this when we can do generalized remat.
3237 let isReMaterializable = 1, isMoveImm = 1 in
3238 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3239 [(set rGPR:$dst, (i32 imm:$src))]>,
3240 Requires<[IsThumb, HasV6T2]>;
3242 // Pseudo instruction that combines movw + movt + add pc (if pic).
3243 // It also makes it possible to rematerialize the instructions.
3244 // FIXME: Remove this when we can do generalized remat and when machine licm
3245 // can properly the instructions.
3246 let isReMaterializable = 1 in {
3247 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3249 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3250 Requires<[IsThumb2, UseMovt]>;
3252 def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3254 [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3255 Requires<[IsThumb2, UseMovt]>;
3258 // ConstantPool, GlobalAddress, and JumpTable
3259 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3260 Requires<[IsThumb2, DontUseMovt]>;
3261 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3262 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3263 Requires<[IsThumb2, UseMovt]>;
3265 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3266 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3268 // Pseudo instruction that combines ldr from constpool and add pc. This should
3269 // be expanded into two instructions late to allow if-conversion and
3271 let canFoldAsLoad = 1, isReMaterializable = 1 in
3272 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3274 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3276 Requires<[IsThumb2]>;
3278 //===----------------------------------------------------------------------===//
3279 // Move between special register and ARM core register -- for disassembly only
3282 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3283 dag oops, dag iops, InstrItinClass itin,
3284 string opc, string asm, list<dag> pattern>
3285 : T2I<oops, iops, itin, opc, asm, pattern> {
3286 let Inst{31-20} = op31_20{11-0};
3287 let Inst{15-14} = op15_14{1-0};
3288 let Inst{12} = op12{0};
3291 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3292 dag oops, dag iops, InstrItinClass itin,
3293 string opc, string asm, list<dag> pattern>
3294 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3296 let Inst{11-8} = Rd;
3297 let Inst{19-16} = 0b1111;
3300 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3301 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3302 [/* For disassembly only; pattern left blank */]>;
3303 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3304 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3305 [/* For disassembly only; pattern left blank */]>;
3307 // Move from ARM core register to Special Register
3309 // No need to have both system and application versions, the encodings are the
3310 // same and the assembly parser has no way to distinguish between them. The mask
3311 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3312 // the mask with the fields to be accessed in the special register.
3313 def t2MSR : T2SpecialReg<0b111100111000 /* op31-20 */, 0b10 /* op15-14 */,
3314 0 /* op12 */, (outs), (ins msr_mask:$mask, rGPR:$Rn),
3315 NoItinerary, "msr", "\t$mask, $Rn",
3316 [/* For disassembly only; pattern left blank */]> {
3319 let Inst{19-16} = Rn;
3320 let Inst{20} = mask{4}; // R Bit
3322 let Inst{11-8} = mask{3-0};
3325 //===----------------------------------------------------------------------===//
3326 // Move between coprocessor and ARM core register
3329 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
3331 : T2Cop<Op, oops, iops,
3332 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3334 let Inst{27-24} = 0b1110;
3335 let Inst{20} = direction;
3345 let Inst{15-12} = Rt;
3346 let Inst{11-8} = cop;
3347 let Inst{23-21} = opc1;
3348 let Inst{7-5} = opc2;
3349 let Inst{3-0} = CRm;
3350 let Inst{19-16} = CRn;
3353 class t2MovRRCopro<bits<4> Op, string opc, bit direction,
3354 list<dag> pattern = []>
3356 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3357 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
3358 let Inst{27-24} = 0b1100;
3359 let Inst{23-21} = 0b010;
3360 let Inst{20} = direction;
3368 let Inst{15-12} = Rt;
3369 let Inst{19-16} = Rt2;
3370 let Inst{11-8} = cop;
3371 let Inst{7-4} = opc1;
3372 let Inst{3-0} = CRm;
3375 /* from ARM core register to coprocessor */
3376 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
3378 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3379 c_imm:$CRm, imm0_7:$opc2),
3380 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3381 imm:$CRm, imm:$opc2)]>;
3382 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
3383 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3384 c_imm:$CRm, imm0_7:$opc2),
3385 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3386 imm:$CRm, imm:$opc2)]>;
3388 /* from coprocessor to ARM core register */
3389 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
3390 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3391 c_imm:$CRm, imm0_7:$opc2), []>;
3393 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
3394 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3395 c_imm:$CRm, imm0_7:$opc2), []>;
3397 def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3398 (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3400 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3401 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3404 /* from ARM core register to coprocessor */
3405 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0,
3406 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
3408 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0,
3409 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
3410 GPR:$Rt2, imm:$CRm)]>;
3411 /* from coprocessor to ARM core register */
3412 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>;
3414 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1>;
3416 //===----------------------------------------------------------------------===//
3417 // Other Coprocessor Instructions.
3420 def tCDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3421 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3422 "cdp\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3423 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3424 imm:$CRm, imm:$opc2)]> {
3425 let Inst{27-24} = 0b1110;
3434 let Inst{3-0} = CRm;
3436 let Inst{7-5} = opc2;
3437 let Inst{11-8} = cop;
3438 let Inst{15-12} = CRd;
3439 let Inst{19-16} = CRn;
3440 let Inst{23-20} = opc1;
3443 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3444 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3445 "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3446 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3447 imm:$CRm, imm:$opc2)]> {
3448 let Inst{27-24} = 0b1110;
3457 let Inst{3-0} = CRm;
3459 let Inst{7-5} = opc2;
3460 let Inst{11-8} = cop;
3461 let Inst{15-12} = CRd;
3462 let Inst{19-16} = CRn;
3463 let Inst{23-20} = opc1;