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. t2_so_imm values are
47 // represented in the imm field in the same 12-bit form that they are encoded
48 // into t2_so_imm instructions: the 8-bit immediate is the least significant
49 // bits [bits 0-7], the 4-bit shift/splat amount is the next 4 bits [bits 8-11].
50 def t2_so_imm : Operand<i32>, PatLeaf<(imm), [{ return Pred_t2_so_imm(N); }]> {
51 let EncoderMethod = "getT2SOImmOpValue";
54 // t2_so_imm_not - Match an immediate that is a complement
56 def t2_so_imm_not : Operand<i32>,
58 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
59 }], t2_so_imm_not_XFORM>;
61 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
62 def t2_so_imm_neg : Operand<i32>,
64 return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
65 }], t2_so_imm_neg_XFORM>;
67 // Break t2_so_imm's up into two pieces. This handles immediates with up to 16
68 // bits set in them. This uses t2_so_imm2part to match and t2_so_imm2part_[12]
69 // to get the first/second pieces.
70 def t2_so_imm2part : Operand<i32>,
72 return ARM_AM::isT2SOImmTwoPartVal((unsigned)N->getZExtValue());
76 def t2_so_imm2part_1 : SDNodeXForm<imm, [{
77 unsigned V = ARM_AM::getT2SOImmTwoPartFirst((unsigned)N->getZExtValue());
78 return CurDAG->getTargetConstant(V, MVT::i32);
81 def t2_so_imm2part_2 : SDNodeXForm<imm, [{
82 unsigned V = ARM_AM::getT2SOImmTwoPartSecond((unsigned)N->getZExtValue());
83 return CurDAG->getTargetConstant(V, MVT::i32);
86 def t2_so_neg_imm2part : Operand<i32>, PatLeaf<(imm), [{
87 return ARM_AM::isT2SOImmTwoPartVal(-(int)N->getZExtValue());
91 def t2_so_neg_imm2part_1 : SDNodeXForm<imm, [{
92 unsigned V = ARM_AM::getT2SOImmTwoPartFirst(-(int)N->getZExtValue());
93 return CurDAG->getTargetConstant(V, MVT::i32);
96 def t2_so_neg_imm2part_2 : SDNodeXForm<imm, [{
97 unsigned V = ARM_AM::getT2SOImmTwoPartSecond(-(int)N->getZExtValue());
98 return CurDAG->getTargetConstant(V, MVT::i32);
101 /// imm1_31 predicate - True if the 32-bit immediate is in the range [1,31].
102 def imm1_31 : PatLeaf<(i32 imm), [{
103 return (int32_t)N->getZExtValue() >= 1 && (int32_t)N->getZExtValue() < 32;
106 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
107 def imm0_4095 : Operand<i32>,
108 PatLeaf<(i32 imm), [{
109 return (uint32_t)N->getZExtValue() < 4096;
112 def imm0_4095_neg : PatLeaf<(i32 imm), [{
113 return (uint32_t)(-N->getZExtValue()) < 4096;
116 def imm0_255_neg : PatLeaf<(i32 imm), [{
117 return (uint32_t)(-N->getZExtValue()) < 255;
120 def imm0_255_not : PatLeaf<(i32 imm), [{
121 return (uint32_t)(~N->getZExtValue()) < 255;
124 // Define Thumb2 specific addressing modes.
126 // t2addrmode_imm12 := reg + imm12
127 def t2addrmode_imm12 : Operand<i32>,
128 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
129 let PrintMethod = "printAddrModeImm12Operand";
130 let EncoderMethod = "getAddrModeImm12OpValue";
131 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
134 // ADR instruction labels.
135 def t2adrlabel : Operand<i32> {
136 let EncoderMethod = "getT2AdrLabelOpValue";
140 // t2addrmode_imm8 := reg +/- imm8
141 def t2addrmode_imm8 : Operand<i32>,
142 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
143 let PrintMethod = "printT2AddrModeImm8Operand";
144 let EncoderMethod = "getT2AddrModeImm8OpValue";
145 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
148 def t2am_imm8_offset : Operand<i32>,
149 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
150 [], [SDNPWantRoot]> {
151 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
152 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
155 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
156 def t2addrmode_imm8s4 : Operand<i32> {
157 let PrintMethod = "printT2AddrModeImm8s4Operand";
158 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
159 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
162 def t2am_imm8s4_offset : Operand<i32> {
163 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
166 // t2addrmode_so_reg := reg + (reg << imm2)
167 def t2addrmode_so_reg : Operand<i32>,
168 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
169 let PrintMethod = "printT2AddrModeSoRegOperand";
170 let EncoderMethod = "getT2AddrModeSORegOpValue";
171 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
175 //===----------------------------------------------------------------------===//
176 // Multiclass helpers...
180 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
181 string opc, string asm, list<dag> pattern>
182 : T2I<oops, iops, itin, opc, asm, pattern> {
187 let Inst{26} = imm{11};
188 let Inst{14-12} = imm{10-8};
189 let Inst{7-0} = imm{7-0};
193 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
194 string opc, string asm, list<dag> pattern>
195 : T2sI<oops, iops, itin, opc, asm, pattern> {
201 let Inst{26} = imm{11};
202 let Inst{14-12} = imm{10-8};
203 let Inst{7-0} = imm{7-0};
206 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
207 string opc, string asm, list<dag> pattern>
208 : T2I<oops, iops, itin, opc, asm, pattern> {
212 let Inst{19-16} = Rn;
213 let Inst{26} = imm{11};
214 let Inst{14-12} = imm{10-8};
215 let Inst{7-0} = imm{7-0};
219 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
220 string opc, string asm, list<dag> pattern>
221 : T2I<oops, iops, itin, opc, asm, pattern> {
226 let Inst{3-0} = ShiftedRm{3-0};
227 let Inst{5-4} = ShiftedRm{6-5};
228 let Inst{14-12} = ShiftedRm{11-9};
229 let Inst{7-6} = ShiftedRm{8-7};
232 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
233 string opc, string asm, list<dag> pattern>
234 : T2sI<oops, iops, itin, opc, asm, pattern> {
239 let Inst{3-0} = ShiftedRm{3-0};
240 let Inst{5-4} = ShiftedRm{6-5};
241 let Inst{14-12} = ShiftedRm{11-9};
242 let Inst{7-6} = ShiftedRm{8-7};
245 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
246 string opc, string asm, list<dag> pattern>
247 : T2I<oops, iops, itin, opc, asm, pattern> {
251 let Inst{19-16} = Rn;
252 let Inst{3-0} = ShiftedRm{3-0};
253 let Inst{5-4} = ShiftedRm{6-5};
254 let Inst{14-12} = ShiftedRm{11-9};
255 let Inst{7-6} = ShiftedRm{8-7};
258 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
259 string opc, string asm, list<dag> pattern>
260 : T2I<oops, iops, itin, opc, asm, pattern> {
268 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
269 string opc, string asm, list<dag> pattern>
270 : T2sI<oops, iops, itin, opc, asm, pattern> {
278 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
279 string opc, string asm, list<dag> pattern>
280 : T2I<oops, iops, itin, opc, asm, pattern> {
284 let Inst{19-16} = Rn;
289 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
290 string opc, string asm, list<dag> pattern>
291 : T2I<oops, iops, itin, opc, asm, pattern> {
297 let Inst{19-16} = Rn;
298 let Inst{26} = imm{11};
299 let Inst{14-12} = imm{10-8};
300 let Inst{7-0} = imm{7-0};
303 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
304 string opc, string asm, list<dag> pattern>
305 : T2sI<oops, iops, itin, opc, asm, pattern> {
311 let Inst{19-16} = Rn;
312 let Inst{26} = imm{11};
313 let Inst{14-12} = imm{10-8};
314 let Inst{7-0} = imm{7-0};
317 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
318 string opc, string asm, list<dag> pattern>
319 : T2I<oops, iops, itin, opc, asm, pattern> {
326 let Inst{14-12} = imm{4-2};
327 let Inst{7-6} = imm{1-0};
330 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
331 string opc, string asm, list<dag> pattern>
332 : T2sI<oops, iops, itin, opc, asm, pattern> {
339 let Inst{14-12} = imm{4-2};
340 let Inst{7-6} = imm{1-0};
343 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
344 string opc, string asm, list<dag> pattern>
345 : T2I<oops, iops, itin, opc, asm, pattern> {
351 let Inst{19-16} = Rn;
355 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
356 string opc, string asm, list<dag> pattern>
357 : T2sI<oops, iops, itin, opc, asm, pattern> {
363 let Inst{19-16} = Rn;
367 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
368 string opc, string asm, list<dag> pattern>
369 : T2I<oops, iops, itin, opc, asm, pattern> {
375 let Inst{19-16} = Rn;
376 let Inst{3-0} = ShiftedRm{3-0};
377 let Inst{5-4} = ShiftedRm{6-5};
378 let Inst{14-12} = ShiftedRm{11-9};
379 let Inst{7-6} = ShiftedRm{8-7};
382 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
383 string opc, string asm, list<dag> pattern>
384 : T2sI<oops, iops, itin, opc, asm, pattern> {
390 let Inst{19-16} = Rn;
391 let Inst{3-0} = ShiftedRm{3-0};
392 let Inst{5-4} = ShiftedRm{6-5};
393 let Inst{14-12} = ShiftedRm{11-9};
394 let Inst{7-6} = ShiftedRm{8-7};
397 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
398 string opc, string asm, list<dag> pattern>
399 : T2I<oops, iops, itin, opc, asm, pattern> {
405 let Inst{19-16} = Rn;
406 let Inst{15-12} = Ra;
411 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
412 dag oops, dag iops, InstrItinClass itin,
413 string opc, string asm, list<dag> pattern>
414 : T2I<oops, iops, itin, opc, asm, pattern> {
420 let Inst{31-23} = 0b111110111;
421 let Inst{22-20} = opc22_20;
422 let Inst{19-16} = Rn;
423 let Inst{15-12} = RdLo;
424 let Inst{11-8} = RdHi;
425 let Inst{7-4} = opc7_4;
430 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
431 /// unary operation that produces a value. These are predicable and can be
432 /// changed to modify CPSR.
433 multiclass T2I_un_irs<bits<4> opcod, string opc,
434 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
435 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
437 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
439 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
440 let isAsCheapAsAMove = Cheap;
441 let isReMaterializable = ReMat;
442 let Inst{31-27} = 0b11110;
444 let Inst{24-21} = opcod;
445 let Inst{19-16} = 0b1111; // Rn
449 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
451 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
452 let Inst{31-27} = 0b11101;
453 let Inst{26-25} = 0b01;
454 let Inst{24-21} = opcod;
455 let Inst{19-16} = 0b1111; // Rn
456 let Inst{14-12} = 0b000; // imm3
457 let Inst{7-6} = 0b00; // imm2
458 let Inst{5-4} = 0b00; // type
461 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
462 opc, ".w\t$Rd, $ShiftedRm",
463 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
464 let Inst{31-27} = 0b11101;
465 let Inst{26-25} = 0b01;
466 let Inst{24-21} = opcod;
467 let Inst{19-16} = 0b1111; // Rn
471 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
472 /// binary operation that produces a value. These are predicable and can be
473 /// changed to modify CPSR.
474 multiclass T2I_bin_irs<bits<4> opcod, string opc,
475 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
476 PatFrag opnode, bit Commutable = 0, string wide = ""> {
478 def ri : T2sTwoRegImm<
479 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
480 opc, "\t$Rd, $Rn, $imm",
481 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
482 let Inst{31-27} = 0b11110;
484 let Inst{24-21} = opcod;
488 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
489 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
490 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
491 let isCommutable = Commutable;
492 let Inst{31-27} = 0b11101;
493 let Inst{26-25} = 0b01;
494 let Inst{24-21} = opcod;
495 let Inst{14-12} = 0b000; // imm3
496 let Inst{7-6} = 0b00; // imm2
497 let Inst{5-4} = 0b00; // type
500 def rs : T2sTwoRegShiftedReg<
501 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
502 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
503 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
504 let Inst{31-27} = 0b11101;
505 let Inst{26-25} = 0b01;
506 let Inst{24-21} = opcod;
510 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
511 // the ".w" prefix to indicate that they are wide.
512 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
513 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
514 PatFrag opnode, bit Commutable = 0> :
515 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w">;
517 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
518 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
519 /// it is equivalent to the T2I_bin_irs counterpart.
520 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
522 def ri : T2sTwoRegImm<
523 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
524 opc, ".w\t$Rd, $Rn, $imm",
525 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
526 let Inst{31-27} = 0b11110;
528 let Inst{24-21} = opcod;
532 def rr : T2sThreeReg<
533 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
534 opc, "\t$Rd, $Rn, $Rm",
535 [/* For disassembly only; pattern left blank */]> {
536 let Inst{31-27} = 0b11101;
537 let Inst{26-25} = 0b01;
538 let Inst{24-21} = opcod;
539 let Inst{14-12} = 0b000; // imm3
540 let Inst{7-6} = 0b00; // imm2
541 let Inst{5-4} = 0b00; // type
544 def rs : T2sTwoRegShiftedReg<
545 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
546 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
547 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
548 let Inst{31-27} = 0b11101;
549 let Inst{26-25} = 0b01;
550 let Inst{24-21} = opcod;
554 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
555 /// instruction modifies the CPSR register.
556 let isCodeGenOnly = 1, Defs = [CPSR] in {
557 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
558 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
559 PatFrag opnode, bit Commutable = 0> {
561 def ri : T2TwoRegImm<
562 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
563 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
564 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
565 let Inst{31-27} = 0b11110;
567 let Inst{24-21} = opcod;
568 let Inst{20} = 1; // The S bit.
573 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
574 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $Rm",
575 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
576 let isCommutable = Commutable;
577 let Inst{31-27} = 0b11101;
578 let Inst{26-25} = 0b01;
579 let Inst{24-21} = opcod;
580 let Inst{20} = 1; // The S bit.
581 let Inst{14-12} = 0b000; // imm3
582 let Inst{7-6} = 0b00; // imm2
583 let Inst{5-4} = 0b00; // type
586 def rs : T2TwoRegShiftedReg<
587 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
588 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $ShiftedRm",
589 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
590 let Inst{31-27} = 0b11101;
591 let Inst{26-25} = 0b01;
592 let Inst{24-21} = opcod;
593 let Inst{20} = 1; // The S bit.
598 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
599 /// patterns for a binary operation that produces a value.
600 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
601 bit Commutable = 0> {
603 // The register-immediate version is re-materializable. This is useful
604 // in particular for taking the address of a local.
605 let isReMaterializable = 1 in {
606 def ri : T2sTwoRegImm<
607 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
608 opc, ".w\t$Rd, $Rn, $imm",
609 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
610 let Inst{31-27} = 0b11110;
613 let Inst{23-21} = op23_21;
619 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
620 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
621 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
625 let Inst{31-27} = 0b11110;
626 let Inst{26} = imm{11};
627 let Inst{25-24} = 0b10;
628 let Inst{23-21} = op23_21;
629 let Inst{20} = 0; // The S bit.
630 let Inst{19-16} = Rn;
632 let Inst{14-12} = imm{10-8};
634 let Inst{7-0} = imm{7-0};
637 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), IIC_iALUr,
638 opc, ".w\t$Rd, $Rn, $Rm",
639 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
640 let isCommutable = Commutable;
641 let Inst{31-27} = 0b11101;
642 let Inst{26-25} = 0b01;
644 let Inst{23-21} = op23_21;
645 let Inst{14-12} = 0b000; // imm3
646 let Inst{7-6} = 0b00; // imm2
647 let Inst{5-4} = 0b00; // type
650 def rs : T2sTwoRegShiftedReg<
651 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
652 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
653 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
654 let Inst{31-27} = 0b11101;
655 let Inst{26-25} = 0b01;
657 let Inst{23-21} = op23_21;
661 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
662 /// for a binary operation that produces a value and use the carry
663 /// bit. It's not predicable.
664 let Uses = [CPSR] in {
665 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
666 bit Commutable = 0> {
668 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
669 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
670 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
671 Requires<[IsThumb2]> {
672 let Inst{31-27} = 0b11110;
674 let Inst{24-21} = opcod;
678 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
679 opc, ".w\t$Rd, $Rn, $Rm",
680 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
681 Requires<[IsThumb2]> {
682 let isCommutable = Commutable;
683 let Inst{31-27} = 0b11101;
684 let Inst{26-25} = 0b01;
685 let Inst{24-21} = opcod;
686 let Inst{14-12} = 0b000; // imm3
687 let Inst{7-6} = 0b00; // imm2
688 let Inst{5-4} = 0b00; // type
691 def rs : T2sTwoRegShiftedReg<
692 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
693 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
694 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
695 Requires<[IsThumb2]> {
696 let Inst{31-27} = 0b11101;
697 let Inst{26-25} = 0b01;
698 let Inst{24-21} = opcod;
702 // Carry setting variants
703 let isCodeGenOnly = 1, Defs = [CPSR] in {
704 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
705 bit Commutable = 0> {
707 def ri : T2sTwoRegImm<
708 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
709 opc, "\t$Rd, $Rn, $imm",
710 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
711 Requires<[IsThumb2]> {
712 let Inst{31-27} = 0b11110;
714 let Inst{24-21} = opcod;
715 let Inst{20} = 1; // The S bit.
719 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
720 opc, ".w\t$Rd, $Rn, $Rm",
721 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
722 Requires<[IsThumb2]> {
723 let isCommutable = Commutable;
724 let Inst{31-27} = 0b11101;
725 let Inst{26-25} = 0b01;
726 let Inst{24-21} = opcod;
727 let Inst{20} = 1; // The S bit.
728 let Inst{14-12} = 0b000; // imm3
729 let Inst{7-6} = 0b00; // imm2
730 let Inst{5-4} = 0b00; // type
733 def rs : T2sTwoRegShiftedReg<
734 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
735 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
736 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
737 Requires<[IsThumb2]> {
738 let Inst{31-27} = 0b11101;
739 let Inst{26-25} = 0b01;
740 let Inst{24-21} = opcod;
741 let Inst{20} = 1; // The S bit.
747 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
748 /// version is not needed since this is only for codegen.
749 let isCodeGenOnly = 1, Defs = [CPSR] in {
750 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
752 def ri : T2TwoRegImm<
753 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
754 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
755 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
756 let Inst{31-27} = 0b11110;
758 let Inst{24-21} = opcod;
759 let Inst{20} = 1; // The S bit.
763 def rs : T2TwoRegShiftedReg<
764 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
765 IIC_iALUsi, !strconcat(opc, "s"), "\t$Rd, $Rn, $ShiftedRm",
766 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
767 let Inst{31-27} = 0b11101;
768 let Inst{26-25} = 0b01;
769 let Inst{24-21} = opcod;
770 let Inst{20} = 1; // The S bit.
775 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
776 // rotate operation that produces a value.
777 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
779 def ri : T2sTwoRegShiftImm<
780 (outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$imm), IIC_iMOVsi,
781 opc, ".w\t$Rd, $Rm, $imm",
782 [(set rGPR:$Rd, (opnode rGPR:$Rm, imm1_31:$imm))]> {
783 let Inst{31-27} = 0b11101;
784 let Inst{26-21} = 0b010010;
785 let Inst{19-16} = 0b1111; // Rn
786 let Inst{5-4} = opcod;
789 def rr : T2sThreeReg<
790 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
791 opc, ".w\t$Rd, $Rn, $Rm",
792 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
793 let Inst{31-27} = 0b11111;
794 let Inst{26-23} = 0b0100;
795 let Inst{22-21} = opcod;
796 let Inst{15-12} = 0b1111;
797 let Inst{7-4} = 0b0000;
801 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
802 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
803 /// a explicit result, only implicitly set CPSR.
804 let isCompare = 1, Defs = [CPSR] in {
805 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
806 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
809 def ri : T2OneRegCmpImm<
810 (outs), (ins GPR:$Rn, t2_so_imm:$imm), iii,
811 opc, ".w\t$Rn, $imm",
812 [(opnode GPR:$Rn, t2_so_imm:$imm)]> {
813 let Inst{31-27} = 0b11110;
815 let Inst{24-21} = opcod;
816 let Inst{20} = 1; // The S bit.
818 let Inst{11-8} = 0b1111; // Rd
821 def rr : T2TwoRegCmp<
822 (outs), (ins GPR:$lhs, rGPR:$rhs), iir,
823 opc, ".w\t$lhs, $rhs",
824 [(opnode GPR:$lhs, rGPR:$rhs)]> {
825 let Inst{31-27} = 0b11101;
826 let Inst{26-25} = 0b01;
827 let Inst{24-21} = opcod;
828 let Inst{20} = 1; // The S bit.
829 let Inst{14-12} = 0b000; // imm3
830 let Inst{11-8} = 0b1111; // Rd
831 let Inst{7-6} = 0b00; // imm2
832 let Inst{5-4} = 0b00; // type
835 def rs : T2OneRegCmpShiftedReg<
836 (outs), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
837 opc, ".w\t$Rn, $ShiftedRm",
838 [(opnode GPR:$Rn, t2_so_reg:$ShiftedRm)]> {
839 let Inst{31-27} = 0b11101;
840 let Inst{26-25} = 0b01;
841 let Inst{24-21} = opcod;
842 let Inst{20} = 1; // The S bit.
843 let Inst{11-8} = 0b1111; // Rd
848 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
849 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
850 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
851 def i12 : T2Ii12<(outs GPR:$Rt), (ins t2addrmode_imm12:$addr), iii,
852 opc, ".w\t$Rt, $addr",
853 [(set GPR:$Rt, (opnode t2addrmode_imm12:$addr))]> {
854 let Inst{31-27} = 0b11111;
855 let Inst{26-25} = 0b00;
856 let Inst{24} = signed;
858 let Inst{22-21} = opcod;
859 let Inst{20} = 1; // load
862 let Inst{15-12} = Rt;
865 let Inst{19-16} = addr{16-13}; // Rn
866 let Inst{23} = addr{12}; // U
867 let Inst{11-0} = addr{11-0}; // imm
869 def i8 : T2Ii8 <(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), iii,
871 [(set GPR:$Rt, (opnode t2addrmode_imm8:$addr))]> {
872 let Inst{31-27} = 0b11111;
873 let Inst{26-25} = 0b00;
874 let Inst{24} = signed;
876 let Inst{22-21} = opcod;
877 let Inst{20} = 1; // load
879 // Offset: index==TRUE, wback==FALSE
880 let Inst{10} = 1; // The P bit.
881 let Inst{8} = 0; // The W bit.
884 let Inst{15-12} = Rt;
887 let Inst{19-16} = addr{12-9}; // Rn
888 let Inst{9} = addr{8}; // U
889 let Inst{7-0} = addr{7-0}; // imm
891 def s : T2Iso <(outs GPR:$Rt), (ins t2addrmode_so_reg:$addr), iis,
892 opc, ".w\t$Rt, $addr",
893 [(set GPR:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
894 let Inst{31-27} = 0b11111;
895 let Inst{26-25} = 0b00;
896 let Inst{24} = signed;
898 let Inst{22-21} = opcod;
899 let Inst{20} = 1; // load
900 let Inst{11-6} = 0b000000;
903 let Inst{15-12} = Rt;
906 let Inst{19-16} = addr{9-6}; // Rn
907 let Inst{3-0} = addr{5-2}; // Rm
908 let Inst{5-4} = addr{1-0}; // imm
911 def pci : t2PseudoInst<(outs GPR:$Rt), (ins i32imm:$addr), Size4Bytes, iis,
912 [(set GPR:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]>;
915 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
916 multiclass T2I_st<bits<2> opcod, string opc,
917 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
918 def i12 : T2Ii12<(outs), (ins GPR:$Rt, t2addrmode_imm12:$addr), iii,
919 opc, ".w\t$Rt, $addr",
920 [(opnode GPR:$Rt, t2addrmode_imm12:$addr)]> {
921 let Inst{31-27} = 0b11111;
922 let Inst{26-23} = 0b0001;
923 let Inst{22-21} = opcod;
924 let Inst{20} = 0; // !load
927 let Inst{15-12} = Rt;
930 let Inst{19-16} = addr{16-13}; // Rn
931 let Inst{23} = addr{12}; // U
932 let Inst{11-0} = addr{11-0}; // imm
934 def i8 : T2Ii8 <(outs), (ins GPR:$Rt, t2addrmode_imm8:$addr), iii,
936 [(opnode GPR:$Rt, t2addrmode_imm8:$addr)]> {
937 let Inst{31-27} = 0b11111;
938 let Inst{26-23} = 0b0000;
939 let Inst{22-21} = opcod;
940 let Inst{20} = 0; // !load
942 // Offset: index==TRUE, wback==FALSE
943 let Inst{10} = 1; // The P bit.
944 let Inst{8} = 0; // The W bit.
947 let Inst{15-12} = Rt;
950 let Inst{19-16} = addr{12-9}; // Rn
951 let Inst{9} = addr{8}; // U
952 let Inst{7-0} = addr{7-0}; // imm
954 def s : T2Iso <(outs), (ins GPR:$Rt, t2addrmode_so_reg:$addr), iis,
955 opc, ".w\t$Rt, $addr",
956 [(opnode GPR:$Rt, t2addrmode_so_reg:$addr)]> {
957 let Inst{31-27} = 0b11111;
958 let Inst{26-23} = 0b0000;
959 let Inst{22-21} = opcod;
960 let Inst{20} = 0; // !load
961 let Inst{11-6} = 0b000000;
964 let Inst{15-12} = Rt;
967 let Inst{19-16} = addr{9-6}; // Rn
968 let Inst{3-0} = addr{5-2}; // Rm
969 let Inst{5-4} = addr{1-0}; // imm
973 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
974 /// register and one whose operand is a register rotated by 8/16/24.
975 multiclass T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> {
976 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
978 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
979 let Inst{31-27} = 0b11111;
980 let Inst{26-23} = 0b0100;
981 let Inst{22-20} = opcod;
982 let Inst{19-16} = 0b1111; // Rn
983 let Inst{15-12} = 0b1111;
985 let Inst{5-4} = 0b00; // rotate
987 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
988 opc, ".w\t$Rd, $Rm, ror $rot",
989 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]> {
990 let Inst{31-27} = 0b11111;
991 let Inst{26-23} = 0b0100;
992 let Inst{22-20} = opcod;
993 let Inst{19-16} = 0b1111; // Rn
994 let Inst{15-12} = 0b1111;
998 let Inst{5-4} = rot{1-0}; // rotate
1002 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
1003 multiclass T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
1004 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1006 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>,
1007 Requires<[HasT2ExtractPack, IsThumb2]> {
1008 let Inst{31-27} = 0b11111;
1009 let Inst{26-23} = 0b0100;
1010 let Inst{22-20} = opcod;
1011 let Inst{19-16} = 0b1111; // Rn
1012 let Inst{15-12} = 0b1111;
1014 let Inst{5-4} = 0b00; // rotate
1016 def r_rot : T2TwoReg<(outs rGPR:$dst), (ins rGPR:$Rm, rot_imm:$rot),
1017 IIC_iEXTr, opc, "\t$dst, $Rm, ror $rot",
1018 [(set rGPR:$dst, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1019 Requires<[HasT2ExtractPack, IsThumb2]> {
1020 let Inst{31-27} = 0b11111;
1021 let Inst{26-23} = 0b0100;
1022 let Inst{22-20} = opcod;
1023 let Inst{19-16} = 0b1111; // Rn
1024 let Inst{15-12} = 0b1111;
1028 let Inst{5-4} = rot{1-0}; // rotate
1032 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1034 multiclass T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> {
1035 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1036 opc, "\t$Rd, $Rm", []> {
1037 let Inst{31-27} = 0b11111;
1038 let Inst{26-23} = 0b0100;
1039 let Inst{22-20} = opcod;
1040 let Inst{19-16} = 0b1111; // Rn
1041 let Inst{15-12} = 0b1111;
1043 let Inst{5-4} = 0b00; // rotate
1045 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1046 opc, "\t$Rd, $Rm, ror $rot", []> {
1047 let Inst{31-27} = 0b11111;
1048 let Inst{26-23} = 0b0100;
1049 let Inst{22-20} = opcod;
1050 let Inst{19-16} = 0b1111; // Rn
1051 let Inst{15-12} = 0b1111;
1055 let Inst{5-4} = rot{1-0}; // rotate
1059 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1060 /// register and one whose operand is a register rotated by 8/16/24.
1061 multiclass T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> {
1062 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1063 opc, "\t$Rd, $Rn, $Rm",
1064 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
1065 Requires<[HasT2ExtractPack, IsThumb2]> {
1066 let Inst{31-27} = 0b11111;
1067 let Inst{26-23} = 0b0100;
1068 let Inst{22-20} = opcod;
1069 let Inst{15-12} = 0b1111;
1071 let Inst{5-4} = 0b00; // rotate
1073 def rr_rot : T2ThreeReg<(outs rGPR:$Rd),
1074 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1075 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot",
1076 [(set rGPR:$Rd, (opnode rGPR:$Rn,
1077 (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1078 Requires<[HasT2ExtractPack, IsThumb2]> {
1079 let Inst{31-27} = 0b11111;
1080 let Inst{26-23} = 0b0100;
1081 let Inst{22-20} = opcod;
1082 let Inst{15-12} = 0b1111;
1086 let Inst{5-4} = rot{1-0}; // rotate
1090 // DO variant - disassembly only, no pattern
1092 multiclass T2I_exta_rrot_DO<bits<3> opcod, string opc> {
1093 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1094 opc, "\t$Rd, $Rn, $Rm", []> {
1095 let Inst{31-27} = 0b11111;
1096 let Inst{26-23} = 0b0100;
1097 let Inst{22-20} = opcod;
1098 let Inst{15-12} = 0b1111;
1100 let Inst{5-4} = 0b00; // rotate
1102 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1103 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot", []> {
1104 let Inst{31-27} = 0b11111;
1105 let Inst{26-23} = 0b0100;
1106 let Inst{22-20} = opcod;
1107 let Inst{15-12} = 0b1111;
1111 let Inst{5-4} = rot{1-0}; // rotate
1115 //===----------------------------------------------------------------------===//
1117 //===----------------------------------------------------------------------===//
1119 //===----------------------------------------------------------------------===//
1120 // Miscellaneous Instructions.
1123 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1124 string asm, list<dag> pattern>
1125 : T2XI<oops, iops, itin, asm, pattern> {
1129 let Inst{11-8} = Rd;
1130 let Inst{26} = label{11};
1131 let Inst{14-12} = label{10-8};
1132 let Inst{7-0} = label{7-0};
1135 // LEApcrel - Load a pc-relative address into a register without offending the
1137 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1138 (ins t2adrlabel:$addr, pred:$p),
1139 IIC_iALUi, "adr{$p}.w\t$Rd, #$addr", []> {
1140 let Inst{31-27} = 0b11110;
1141 let Inst{25-24} = 0b10;
1142 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1145 let Inst{19-16} = 0b1111; // Rn
1150 let Inst{11-8} = Rd;
1151 let Inst{23} = addr{12};
1152 let Inst{21} = addr{12};
1153 let Inst{26} = addr{11};
1154 let Inst{14-12} = addr{10-8};
1155 let Inst{7-0} = addr{7-0};
1158 let neverHasSideEffects = 1, isReMaterializable = 1 in
1159 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1160 Size4Bytes, IIC_iALUi, []>;
1161 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1162 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1163 Size4Bytes, IIC_iALUi,
1167 // FIXME: None of these add/sub SP special instructions should be necessary
1168 // at all for thumb2 since they use the same encodings as the generic
1169 // add/sub instructions. In thumb1 we need them since they have dedicated
1170 // encodings. At the least, they should be pseudo instructions.
1171 // ADD r, sp, {so_imm|i12}
1172 let isCodeGenOnly = 1 in {
1173 def t2ADDrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm),
1174 IIC_iALUi, "add", ".w\t$Rd, $Rn, $imm", []> {
1175 let Inst{31-27} = 0b11110;
1177 let Inst{24-21} = 0b1000;
1180 def t2ADDrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm),
1181 IIC_iALUi, "addw", "\t$Rd, $Rn, $imm", []> {
1182 let Inst{31-27} = 0b11110;
1183 let Inst{25-20} = 0b100000;
1187 // ADD r, sp, so_reg
1188 def t2ADDrSPs : T2sTwoRegShiftedReg<
1189 (outs GPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
1190 IIC_iALUsi, "add", ".w\t$Rd, $Rn, $ShiftedRm", []> {
1191 let Inst{31-27} = 0b11101;
1192 let Inst{26-25} = 0b01;
1193 let Inst{24-21} = 0b1000;
1197 // SUB r, sp, {so_imm|i12}
1198 def t2SUBrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm),
1199 IIC_iALUi, "sub", ".w\t$Rd, $Rn, $imm", []> {
1200 let Inst{31-27} = 0b11110;
1202 let Inst{24-21} = 0b1101;
1205 def t2SUBrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm),
1206 IIC_iALUi, "subw", "\t$Rd, $Rn, $imm", []> {
1207 let Inst{31-27} = 0b11110;
1208 let Inst{25-20} = 0b101010;
1212 // SUB r, sp, so_reg
1213 def t2SUBrSPs : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, t2_so_reg:$imm),
1215 "sub", "\t$Rd, $Rn, $imm", []> {
1216 let Inst{31-27} = 0b11101;
1217 let Inst{26-25} = 0b01;
1218 let Inst{24-21} = 0b1101;
1219 let Inst{19-16} = 0b1101; // Rn = sp
1222 } // end isCodeGenOnly = 1
1224 // Signed and unsigned division on v7-M
1225 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1226 "sdiv", "\t$Rd, $Rn, $Rm",
1227 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
1228 Requires<[HasDivide, IsThumb2]> {
1229 let Inst{31-27} = 0b11111;
1230 let Inst{26-21} = 0b011100;
1232 let Inst{15-12} = 0b1111;
1233 let Inst{7-4} = 0b1111;
1236 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1237 "udiv", "\t$Rd, $Rn, $Rm",
1238 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
1239 Requires<[HasDivide, IsThumb2]> {
1240 let Inst{31-27} = 0b11111;
1241 let Inst{26-21} = 0b011101;
1243 let Inst{15-12} = 0b1111;
1244 let Inst{7-4} = 0b1111;
1247 //===----------------------------------------------------------------------===//
1248 // Load / store Instructions.
1252 let canFoldAsLoad = 1, isReMaterializable = 1 in
1253 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
1254 UnOpFrag<(load node:$Src)>>;
1256 // Loads with zero extension
1257 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1258 UnOpFrag<(zextloadi16 node:$Src)>>;
1259 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1260 UnOpFrag<(zextloadi8 node:$Src)>>;
1262 // Loads with sign extension
1263 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1264 UnOpFrag<(sextloadi16 node:$Src)>>;
1265 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1266 UnOpFrag<(sextloadi8 node:$Src)>>;
1268 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1270 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1271 (ins t2addrmode_imm8s4:$addr),
1272 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", []>;
1273 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1275 // zextload i1 -> zextload i8
1276 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1277 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1278 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
1279 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1280 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1281 (t2LDRBs t2addrmode_so_reg:$addr)>;
1282 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1283 (t2LDRBpci tconstpool:$addr)>;
1285 // extload -> zextload
1286 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1288 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1289 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1290 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
1291 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1292 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1293 (t2LDRBs t2addrmode_so_reg:$addr)>;
1294 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1295 (t2LDRBpci tconstpool:$addr)>;
1297 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1298 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1299 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
1300 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1301 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1302 (t2LDRBs t2addrmode_so_reg:$addr)>;
1303 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1304 (t2LDRBpci tconstpool:$addr)>;
1306 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1307 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1308 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
1309 (t2LDRHi8 t2addrmode_imm8:$addr)>;
1310 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1311 (t2LDRHs t2addrmode_so_reg:$addr)>;
1312 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1313 (t2LDRHpci tconstpool:$addr)>;
1315 // FIXME: The destination register of the loads and stores can't be PC, but
1316 // can be SP. We need another regclass (similar to rGPR) to represent
1317 // that. Not a pressing issue since these are selected manually,
1322 let mayLoad = 1, neverHasSideEffects = 1 in {
1323 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1324 (ins t2addrmode_imm8:$addr),
1325 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1326 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1329 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1330 (ins GPR:$base, t2am_imm8_offset:$addr),
1331 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1332 "ldr", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1335 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1336 (ins t2addrmode_imm8:$addr),
1337 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1338 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1340 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1341 (ins GPR:$base, t2am_imm8_offset:$addr),
1342 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1343 "ldrb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1346 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1347 (ins t2addrmode_imm8:$addr),
1348 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1349 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1351 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1352 (ins GPR:$base, t2am_imm8_offset:$addr),
1353 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1354 "ldrh", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1357 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1358 (ins t2addrmode_imm8:$addr),
1359 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1360 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1362 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1363 (ins GPR:$base, t2am_imm8_offset:$addr),
1364 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1365 "ldrsb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1368 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1369 (ins t2addrmode_imm8:$addr),
1370 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1371 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1373 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$Rn),
1374 (ins GPR:$base, t2am_imm8_offset:$addr),
1375 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1376 "ldrsh", "\t$dst, [$Rn], $addr", "$base = $Rn",
1378 } // mayLoad = 1, neverHasSideEffects = 1
1380 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1381 // for disassembly only.
1382 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1383 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1384 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1385 "\t$Rt, $addr", []> {
1386 let Inst{31-27} = 0b11111;
1387 let Inst{26-25} = 0b00;
1388 let Inst{24} = signed;
1390 let Inst{22-21} = type;
1391 let Inst{20} = 1; // load
1393 let Inst{10-8} = 0b110; // PUW.
1397 let Inst{15-12} = Rt;
1398 let Inst{19-16} = addr{12-9};
1399 let Inst{7-0} = addr{7-0};
1402 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1403 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1404 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1405 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1406 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1409 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1410 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1411 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1412 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1413 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1414 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1417 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1418 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1419 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1420 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
1423 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1424 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1425 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1426 "str", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1428 (pre_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1430 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1431 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1432 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1433 "str", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1435 (post_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1437 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1438 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1439 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1440 "strh", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1442 (pre_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1444 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1445 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1446 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1447 "strh", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1449 (post_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1451 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1452 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1453 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1454 "strb", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1456 (pre_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1458 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1459 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1460 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1461 "strb", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1463 (post_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1465 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1467 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1468 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1469 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1470 "\t$Rt, $addr", []> {
1471 let Inst{31-27} = 0b11111;
1472 let Inst{26-25} = 0b00;
1473 let Inst{24} = 0; // not signed
1475 let Inst{22-21} = type;
1476 let Inst{20} = 0; // store
1478 let Inst{10-8} = 0b110; // PUW
1482 let Inst{15-12} = Rt;
1483 let Inst{19-16} = addr{12-9};
1484 let Inst{7-0} = addr{7-0};
1487 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1488 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1489 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1491 // ldrd / strd pre / post variants
1492 // For disassembly only.
1494 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1495 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1496 "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1498 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1499 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1500 "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
1502 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1503 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1504 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1506 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1507 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1508 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
1510 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1511 // data/instruction access. These are for disassembly only.
1512 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1513 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1514 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1516 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1518 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1519 let Inst{31-25} = 0b1111100;
1520 let Inst{24} = instr;
1522 let Inst{21} = write;
1524 let Inst{15-12} = 0b1111;
1527 let Inst{19-16} = addr{16-13}; // Rn
1528 let Inst{23} = addr{12}; // U
1529 let Inst{11-0} = addr{11-0}; // imm12
1532 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1534 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1535 let Inst{31-25} = 0b1111100;
1536 let Inst{24} = instr;
1537 let Inst{23} = 0; // U = 0
1539 let Inst{21} = write;
1541 let Inst{15-12} = 0b1111;
1542 let Inst{11-8} = 0b1100;
1545 let Inst{19-16} = addr{12-9}; // Rn
1546 let Inst{7-0} = addr{7-0}; // imm8
1549 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1551 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1552 let Inst{31-25} = 0b1111100;
1553 let Inst{24} = instr;
1554 let Inst{23} = 0; // add = TRUE for T1
1556 let Inst{21} = write;
1558 let Inst{15-12} = 0b1111;
1559 let Inst{11-6} = 0000000;
1562 let Inst{19-16} = addr{9-6}; // Rn
1563 let Inst{3-0} = addr{5-2}; // Rm
1564 let Inst{5-4} = addr{1-0}; // imm2
1568 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1569 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1570 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1572 //===----------------------------------------------------------------------===//
1573 // Load / store multiple Instructions.
1576 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1577 InstrItinClass itin_upd, bit L_bit> {
1579 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1580 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1584 let Inst{31-27} = 0b11101;
1585 let Inst{26-25} = 0b00;
1586 let Inst{24-23} = 0b01; // Increment After
1588 let Inst{21} = 0; // No writeback
1589 let Inst{20} = L_bit;
1590 let Inst{19-16} = Rn;
1591 let Inst{15-0} = regs;
1594 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1595 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1599 let Inst{31-27} = 0b11101;
1600 let Inst{26-25} = 0b00;
1601 let Inst{24-23} = 0b01; // Increment After
1603 let Inst{21} = 1; // Writeback
1604 let Inst{20} = L_bit;
1605 let Inst{19-16} = Rn;
1606 let Inst{15-0} = regs;
1609 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1610 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1614 let Inst{31-27} = 0b11101;
1615 let Inst{26-25} = 0b00;
1616 let Inst{24-23} = 0b10; // Decrement Before
1618 let Inst{21} = 0; // No writeback
1619 let Inst{20} = L_bit;
1620 let Inst{19-16} = Rn;
1621 let Inst{15-0} = regs;
1624 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1625 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1629 let Inst{31-27} = 0b11101;
1630 let Inst{26-25} = 0b00;
1631 let Inst{24-23} = 0b10; // Decrement Before
1633 let Inst{21} = 1; // Writeback
1634 let Inst{20} = L_bit;
1635 let Inst{19-16} = Rn;
1636 let Inst{15-0} = regs;
1640 let neverHasSideEffects = 1 in {
1642 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1643 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1645 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1646 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1648 } // neverHasSideEffects
1651 //===----------------------------------------------------------------------===//
1652 // Move Instructions.
1655 let neverHasSideEffects = 1 in
1656 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1657 "mov", ".w\t$Rd, $Rm", []> {
1658 let Inst{31-27} = 0b11101;
1659 let Inst{26-25} = 0b01;
1660 let Inst{24-21} = 0b0010;
1661 let Inst{19-16} = 0b1111; // Rn
1662 let Inst{14-12} = 0b000;
1663 let Inst{7-4} = 0b0000;
1666 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1667 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1668 AddedComplexity = 1 in
1669 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1670 "mov", ".w\t$Rd, $imm",
1671 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1672 let Inst{31-27} = 0b11110;
1674 let Inst{24-21} = 0b0010;
1675 let Inst{19-16} = 0b1111; // Rn
1679 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1680 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins i32imm_hilo16:$imm), IIC_iMOVi,
1681 "movw", "\t$Rd, $imm",
1682 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1683 let Inst{31-27} = 0b11110;
1685 let Inst{24-21} = 0b0010;
1686 let Inst{20} = 0; // The S bit.
1692 let Inst{11-8} = Rd;
1693 let Inst{19-16} = imm{15-12};
1694 let Inst{26} = imm{11};
1695 let Inst{14-12} = imm{10-8};
1696 let Inst{7-0} = imm{7-0};
1699 def t2MOVi16_pic_ga : PseudoInst<(outs rGPR:$Rd),
1700 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1702 let Constraints = "$src = $Rd" in {
1703 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1704 (ins rGPR:$src, i32imm_hilo16:$imm), IIC_iMOVi,
1705 "movt", "\t$Rd, $imm",
1707 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1708 let Inst{31-27} = 0b11110;
1710 let Inst{24-21} = 0b0110;
1711 let Inst{20} = 0; // The S bit.
1717 let Inst{11-8} = Rd;
1718 let Inst{19-16} = imm{15-12};
1719 let Inst{26} = imm{11};
1720 let Inst{14-12} = imm{10-8};
1721 let Inst{7-0} = imm{7-0};
1724 def t2MOVTi16_pic_ga : PseudoInst<(outs rGPR:$Rd),
1725 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1728 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1730 //===----------------------------------------------------------------------===//
1731 // Extend Instructions.
1736 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1737 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1738 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1739 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1740 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1742 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1743 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1744 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1745 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1746 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1748 // TODO: SXT(A){B|H}16 - done for disassembly only
1752 let AddedComplexity = 16 in {
1753 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1754 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1755 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1756 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1757 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1758 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1760 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1761 // The transformation should probably be done as a combiner action
1762 // instead so we can include a check for masking back in the upper
1763 // eight bits of the source into the lower eight bits of the result.
1764 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1765 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1766 // Requires<[HasT2ExtractPack, IsThumb2]>;
1767 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1768 (t2UXTB16r_rot rGPR:$Src, 8)>,
1769 Requires<[HasT2ExtractPack, IsThumb2]>;
1771 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1772 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1773 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1774 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1775 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1778 //===----------------------------------------------------------------------===//
1779 // Arithmetic Instructions.
1782 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1783 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1784 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1785 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1787 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1788 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1789 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1790 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1791 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1792 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1793 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1795 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1796 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1797 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1798 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1799 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1800 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1801 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1802 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1805 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1806 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1807 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1808 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1810 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1811 // The assume-no-carry-in form uses the negation of the input since add/sub
1812 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1813 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1815 // The AddedComplexity preferences the first variant over the others since
1816 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1817 let AddedComplexity = 1 in
1818 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1819 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1820 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1821 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1822 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1823 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1824 let AddedComplexity = 1 in
1825 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1826 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1827 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1828 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1829 // The with-carry-in form matches bitwise not instead of the negation.
1830 // Effectively, the inverse interpretation of the carry flag already accounts
1831 // for part of the negation.
1832 let AddedComplexity = 1 in
1833 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1834 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1835 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1836 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1838 // Select Bytes -- for disassembly only
1840 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1841 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []> {
1842 let Inst{31-27} = 0b11111;
1843 let Inst{26-24} = 0b010;
1845 let Inst{22-20} = 0b010;
1846 let Inst{15-12} = 0b1111;
1848 let Inst{6-4} = 0b000;
1851 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1852 // And Miscellaneous operations -- for disassembly only
1853 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1854 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1855 : T2I<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), NoItinerary, opc,
1856 "\t$Rd, $Rn, $Rm", pat> {
1857 let Inst{31-27} = 0b11111;
1858 let Inst{26-23} = 0b0101;
1859 let Inst{22-20} = op22_20;
1860 let Inst{15-12} = 0b1111;
1861 let Inst{7-4} = op7_4;
1867 let Inst{11-8} = Rd;
1868 let Inst{19-16} = Rn;
1872 // Saturating add/subtract -- for disassembly only
1874 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1875 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))]>;
1876 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1877 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1878 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1879 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1880 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1881 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1882 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1883 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))]>;
1884 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1885 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1886 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1887 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1888 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1889 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1890 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1891 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1893 // Signed/Unsigned add/subtract -- for disassembly only
1895 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1896 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1897 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1898 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1899 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1900 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1901 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1902 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1903 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1904 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1905 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1906 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1908 // Signed/Unsigned halving add/subtract -- for disassembly only
1910 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1911 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1912 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1913 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1914 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1915 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1916 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1917 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1918 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1919 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1920 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1921 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1923 // Helper class for disassembly only
1924 // A6.3.16 & A6.3.17
1925 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1926 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1927 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1928 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1929 let Inst{31-27} = 0b11111;
1930 let Inst{26-24} = 0b011;
1931 let Inst{23} = long;
1932 let Inst{22-20} = op22_20;
1933 let Inst{7-4} = op7_4;
1936 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1937 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1938 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1939 let Inst{31-27} = 0b11111;
1940 let Inst{26-24} = 0b011;
1941 let Inst{23} = long;
1942 let Inst{22-20} = op22_20;
1943 let Inst{7-4} = op7_4;
1946 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1948 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1949 (ins rGPR:$Rn, rGPR:$Rm),
1950 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []> {
1951 let Inst{15-12} = 0b1111;
1953 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1954 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1955 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>;
1957 // Signed/Unsigned saturate -- for disassembly only
1959 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1960 string opc, string asm, list<dag> pattern>
1961 : T2I<oops, iops, itin, opc, asm, pattern> {
1967 let Inst{11-8} = Rd;
1968 let Inst{19-16} = Rn;
1969 let Inst{4-0} = sat_imm{4-0};
1970 let Inst{21} = sh{6};
1971 let Inst{14-12} = sh{4-2};
1972 let Inst{7-6} = sh{1-0};
1976 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1977 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1978 [/* For disassembly only; pattern left blank */]> {
1979 let Inst{31-27} = 0b11110;
1980 let Inst{25-22} = 0b1100;
1985 def t2SSAT16: T2SatI<
1986 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
1987 "ssat16", "\t$Rd, $sat_imm, $Rn",
1988 [/* For disassembly only; pattern left blank */]> {
1989 let Inst{31-27} = 0b11110;
1990 let Inst{25-22} = 0b1100;
1993 let Inst{21} = 1; // sh = '1'
1994 let Inst{14-12} = 0b000; // imm3 = '000'
1995 let Inst{7-6} = 0b00; // imm2 = '00'
1999 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
2000 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
2001 [/* For disassembly only; pattern left blank */]> {
2002 let Inst{31-27} = 0b11110;
2003 let Inst{25-22} = 0b1110;
2008 def t2USAT16: T2SatI<
2009 (outs rGPR:$dst), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
2010 "usat16", "\t$dst, $sat_imm, $Rn",
2011 [/* For disassembly only; pattern left blank */]> {
2012 let Inst{31-27} = 0b11110;
2013 let Inst{25-22} = 0b1110;
2016 let Inst{21} = 1; // sh = '1'
2017 let Inst{14-12} = 0b000; // imm3 = '000'
2018 let Inst{7-6} = 0b00; // imm2 = '00'
2021 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2022 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2024 //===----------------------------------------------------------------------===//
2025 // Shift and rotate Instructions.
2028 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2029 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2030 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2031 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2033 let Uses = [CPSR] in {
2034 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2035 "rrx", "\t$Rd, $Rm",
2036 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2037 let Inst{31-27} = 0b11101;
2038 let Inst{26-25} = 0b01;
2039 let Inst{24-21} = 0b0010;
2040 let Inst{19-16} = 0b1111; // Rn
2041 let Inst{14-12} = 0b000;
2042 let Inst{7-4} = 0b0011;
2046 let isCodeGenOnly = 1, Defs = [CPSR] in {
2047 def t2MOVsrl_flag : T2TwoRegShiftImm<
2048 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2049 "lsrs", ".w\t$Rd, $Rm, #1",
2050 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2051 let Inst{31-27} = 0b11101;
2052 let Inst{26-25} = 0b01;
2053 let Inst{24-21} = 0b0010;
2054 let Inst{20} = 1; // The S bit.
2055 let Inst{19-16} = 0b1111; // Rn
2056 let Inst{5-4} = 0b01; // Shift type.
2057 // Shift amount = Inst{14-12:7-6} = 1.
2058 let Inst{14-12} = 0b000;
2059 let Inst{7-6} = 0b01;
2061 def t2MOVsra_flag : T2TwoRegShiftImm<
2062 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2063 "asrs", ".w\t$Rd, $Rm, #1",
2064 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2065 let Inst{31-27} = 0b11101;
2066 let Inst{26-25} = 0b01;
2067 let Inst{24-21} = 0b0010;
2068 let Inst{20} = 1; // The S bit.
2069 let Inst{19-16} = 0b1111; // Rn
2070 let Inst{5-4} = 0b10; // Shift type.
2071 // Shift amount = Inst{14-12:7-6} = 1.
2072 let Inst{14-12} = 0b000;
2073 let Inst{7-6} = 0b01;
2077 //===----------------------------------------------------------------------===//
2078 // Bitwise Instructions.
2081 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2082 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2083 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2084 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2085 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2086 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2087 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2088 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2089 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2091 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2092 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2093 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2095 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2096 string opc, string asm, list<dag> pattern>
2097 : T2I<oops, iops, itin, opc, asm, pattern> {
2102 let Inst{11-8} = Rd;
2103 let Inst{4-0} = msb{4-0};
2104 let Inst{14-12} = lsb{4-2};
2105 let Inst{7-6} = lsb{1-0};
2108 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2109 string opc, string asm, list<dag> pattern>
2110 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2113 let Inst{19-16} = Rn;
2116 let Constraints = "$src = $Rd" in
2117 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2118 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2119 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2120 let Inst{31-27} = 0b11110;
2122 let Inst{24-20} = 0b10110;
2123 let Inst{19-16} = 0b1111; // Rn
2127 let msb{4-0} = imm{9-5};
2128 let lsb{4-0} = imm{4-0};
2131 def t2SBFX: T2TwoRegBitFI<
2132 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2133 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2134 let Inst{31-27} = 0b11110;
2136 let Inst{24-20} = 0b10100;
2140 def t2UBFX: T2TwoRegBitFI<
2141 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2142 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2143 let Inst{31-27} = 0b11110;
2145 let Inst{24-20} = 0b11100;
2149 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2150 let Constraints = "$src = $Rd" in
2151 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2152 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2153 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2154 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2155 bf_inv_mask_imm:$imm))]> {
2156 let Inst{31-27} = 0b11110;
2158 let Inst{24-20} = 0b10110;
2162 let msb{4-0} = imm{9-5};
2163 let lsb{4-0} = imm{4-0};
2166 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2167 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2168 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2170 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2171 let AddedComplexity = 1 in
2172 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2173 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2174 UnOpFrag<(not node:$Src)>, 1, 1>;
2177 let AddedComplexity = 1 in
2178 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2179 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2181 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2182 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2183 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2184 Requires<[IsThumb2]>;
2186 def : T2Pat<(t2_so_imm_not:$src),
2187 (t2MVNi t2_so_imm_not:$src)>;
2189 //===----------------------------------------------------------------------===//
2190 // Multiply Instructions.
2192 let isCommutable = 1 in
2193 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2194 "mul", "\t$Rd, $Rn, $Rm",
2195 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2196 let Inst{31-27} = 0b11111;
2197 let Inst{26-23} = 0b0110;
2198 let Inst{22-20} = 0b000;
2199 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2200 let Inst{7-4} = 0b0000; // Multiply
2203 def t2MLA: T2FourReg<
2204 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2205 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2206 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2207 let Inst{31-27} = 0b11111;
2208 let Inst{26-23} = 0b0110;
2209 let Inst{22-20} = 0b000;
2210 let Inst{7-4} = 0b0000; // Multiply
2213 def t2MLS: T2FourReg<
2214 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2215 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2216 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2217 let Inst{31-27} = 0b11111;
2218 let Inst{26-23} = 0b0110;
2219 let Inst{22-20} = 0b000;
2220 let Inst{7-4} = 0b0001; // Multiply and Subtract
2223 // Extra precision multiplies with low / high results
2224 let neverHasSideEffects = 1 in {
2225 let isCommutable = 1 in {
2226 def t2SMULL : T2MulLong<0b000, 0b0000,
2227 (outs rGPR:$Rd, rGPR:$Ra),
2228 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2229 "smull", "\t$Rd, $Ra, $Rn, $Rm", []>;
2231 def t2UMULL : T2MulLong<0b010, 0b0000,
2232 (outs rGPR:$RdLo, rGPR:$RdHi),
2233 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2234 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2237 // Multiply + accumulate
2238 def t2SMLAL : T2MulLong<0b100, 0b0000,
2239 (outs rGPR:$RdLo, rGPR:$RdHi),
2240 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2241 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2243 def t2UMLAL : T2MulLong<0b110, 0b0000,
2244 (outs rGPR:$RdLo, rGPR:$RdHi),
2245 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2246 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2248 def t2UMAAL : T2MulLong<0b110, 0b0110,
2249 (outs rGPR:$RdLo, rGPR:$RdHi),
2250 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2251 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2252 } // neverHasSideEffects
2254 // Rounding variants of the below included for disassembly only
2256 // Most significant word multiply
2257 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2258 "smmul", "\t$Rd, $Rn, $Rm",
2259 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]> {
2260 let Inst{31-27} = 0b11111;
2261 let Inst{26-23} = 0b0110;
2262 let Inst{22-20} = 0b101;
2263 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2264 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2267 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2268 "smmulr", "\t$Rd, $Rn, $Rm", []> {
2269 let Inst{31-27} = 0b11111;
2270 let Inst{26-23} = 0b0110;
2271 let Inst{22-20} = 0b101;
2272 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2273 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2276 def t2SMMLA : T2FourReg<
2277 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2278 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2279 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]> {
2280 let Inst{31-27} = 0b11111;
2281 let Inst{26-23} = 0b0110;
2282 let Inst{22-20} = 0b101;
2283 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2286 def t2SMMLAR: T2FourReg<
2287 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2288 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []> {
2289 let Inst{31-27} = 0b11111;
2290 let Inst{26-23} = 0b0110;
2291 let Inst{22-20} = 0b101;
2292 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2295 def t2SMMLS: T2FourReg<
2296 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2297 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2298 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]> {
2299 let Inst{31-27} = 0b11111;
2300 let Inst{26-23} = 0b0110;
2301 let Inst{22-20} = 0b110;
2302 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2305 def t2SMMLSR:T2FourReg<
2306 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2307 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []> {
2308 let Inst{31-27} = 0b11111;
2309 let Inst{26-23} = 0b0110;
2310 let Inst{22-20} = 0b110;
2311 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2314 multiclass T2I_smul<string opc, PatFrag opnode> {
2315 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2316 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2317 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2318 (sext_inreg rGPR:$Rm, i16)))]> {
2319 let Inst{31-27} = 0b11111;
2320 let Inst{26-23} = 0b0110;
2321 let Inst{22-20} = 0b001;
2322 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2323 let Inst{7-6} = 0b00;
2324 let Inst{5-4} = 0b00;
2327 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2328 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2329 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2330 (sra rGPR:$Rm, (i32 16))))]> {
2331 let Inst{31-27} = 0b11111;
2332 let Inst{26-23} = 0b0110;
2333 let Inst{22-20} = 0b001;
2334 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2335 let Inst{7-6} = 0b00;
2336 let Inst{5-4} = 0b01;
2339 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2340 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2341 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2342 (sext_inreg rGPR:$Rm, i16)))]> {
2343 let Inst{31-27} = 0b11111;
2344 let Inst{26-23} = 0b0110;
2345 let Inst{22-20} = 0b001;
2346 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2347 let Inst{7-6} = 0b00;
2348 let Inst{5-4} = 0b10;
2351 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2352 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2353 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2354 (sra rGPR:$Rm, (i32 16))))]> {
2355 let Inst{31-27} = 0b11111;
2356 let Inst{26-23} = 0b0110;
2357 let Inst{22-20} = 0b001;
2358 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2359 let Inst{7-6} = 0b00;
2360 let Inst{5-4} = 0b11;
2363 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2364 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2365 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2366 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]> {
2367 let Inst{31-27} = 0b11111;
2368 let Inst{26-23} = 0b0110;
2369 let Inst{22-20} = 0b011;
2370 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2371 let Inst{7-6} = 0b00;
2372 let Inst{5-4} = 0b00;
2375 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2376 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2377 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2378 (sra rGPR:$Rm, (i32 16))), (i32 16)))]> {
2379 let Inst{31-27} = 0b11111;
2380 let Inst{26-23} = 0b0110;
2381 let Inst{22-20} = 0b011;
2382 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2383 let Inst{7-6} = 0b00;
2384 let Inst{5-4} = 0b01;
2389 multiclass T2I_smla<string opc, PatFrag opnode> {
2391 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2392 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2393 [(set rGPR:$Rd, (add rGPR:$Ra,
2394 (opnode (sext_inreg rGPR:$Rn, i16),
2395 (sext_inreg rGPR:$Rm, i16))))]> {
2396 let Inst{31-27} = 0b11111;
2397 let Inst{26-23} = 0b0110;
2398 let Inst{22-20} = 0b001;
2399 let Inst{7-6} = 0b00;
2400 let Inst{5-4} = 0b00;
2404 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2405 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2406 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2407 (sra rGPR:$Rm, (i32 16)))))]> {
2408 let Inst{31-27} = 0b11111;
2409 let Inst{26-23} = 0b0110;
2410 let Inst{22-20} = 0b001;
2411 let Inst{7-6} = 0b00;
2412 let Inst{5-4} = 0b01;
2416 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2417 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2418 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2419 (sext_inreg rGPR:$Rm, i16))))]> {
2420 let Inst{31-27} = 0b11111;
2421 let Inst{26-23} = 0b0110;
2422 let Inst{22-20} = 0b001;
2423 let Inst{7-6} = 0b00;
2424 let Inst{5-4} = 0b10;
2428 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2429 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2430 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2431 (sra rGPR:$Rm, (i32 16)))))]> {
2432 let Inst{31-27} = 0b11111;
2433 let Inst{26-23} = 0b0110;
2434 let Inst{22-20} = 0b001;
2435 let Inst{7-6} = 0b00;
2436 let Inst{5-4} = 0b11;
2440 (outs rGPR:$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:$Rm, i16)), (i32 16))))]> {
2444 let Inst{31-27} = 0b11111;
2445 let Inst{26-23} = 0b0110;
2446 let Inst{22-20} = 0b011;
2447 let Inst{7-6} = 0b00;
2448 let Inst{5-4} = 0b00;
2452 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2453 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2454 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2455 (sra rGPR:$Rm, (i32 16))), (i32 16))))]> {
2456 let Inst{31-27} = 0b11111;
2457 let Inst{26-23} = 0b0110;
2458 let Inst{22-20} = 0b011;
2459 let Inst{7-6} = 0b00;
2460 let Inst{5-4} = 0b01;
2464 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2465 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2467 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2468 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2469 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2470 [/* For disassembly only; pattern left blank */]>;
2471 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2472 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2473 [/* For disassembly only; pattern left blank */]>;
2474 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2475 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2476 [/* For disassembly only; pattern left blank */]>;
2477 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2478 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2479 [/* For disassembly only; pattern left blank */]>;
2481 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2482 // These are for disassembly only.
2484 def t2SMUAD: T2ThreeReg_mac<
2485 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2486 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []> {
2487 let Inst{15-12} = 0b1111;
2489 def t2SMUADX:T2ThreeReg_mac<
2490 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2491 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []> {
2492 let Inst{15-12} = 0b1111;
2494 def t2SMUSD: T2ThreeReg_mac<
2495 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2496 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []> {
2497 let Inst{15-12} = 0b1111;
2499 def t2SMUSDX:T2ThreeReg_mac<
2500 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2501 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []> {
2502 let Inst{15-12} = 0b1111;
2504 def t2SMLAD : T2ThreeReg_mac<
2505 0, 0b010, 0b0000, (outs rGPR:$Rd),
2506 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2507 "\t$Rd, $Rn, $Rm, $Ra", []>;
2508 def t2SMLADX : T2FourReg_mac<
2509 0, 0b010, 0b0001, (outs rGPR:$Rd),
2510 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2511 "\t$Rd, $Rn, $Rm, $Ra", []>;
2512 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2513 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2514 "\t$Rd, $Rn, $Rm, $Ra", []>;
2515 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2516 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2517 "\t$Rd, $Rn, $Rm, $Ra", []>;
2518 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2519 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2520 "\t$Ra, $Rd, $Rm, $Rn", []>;
2521 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2522 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2523 "\t$Ra, $Rd, $Rm, $Rn", []>;
2524 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2525 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2526 "\t$Ra, $Rd, $Rm, $Rn", []>;
2527 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2528 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2529 "\t$Ra, $Rd, $Rm, $Rn", []>;
2531 //===----------------------------------------------------------------------===//
2532 // Misc. Arithmetic Instructions.
2535 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2536 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2537 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2538 let Inst{31-27} = 0b11111;
2539 let Inst{26-22} = 0b01010;
2540 let Inst{21-20} = op1;
2541 let Inst{15-12} = 0b1111;
2542 let Inst{7-6} = 0b10;
2543 let Inst{5-4} = op2;
2547 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2548 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2550 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2551 "rbit", "\t$Rd, $Rm",
2552 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2554 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2555 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2557 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2558 "rev16", ".w\t$Rd, $Rm",
2560 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF),
2561 (or (and (shl rGPR:$Rm, (i32 8)), 0xFF00),
2562 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF0000),
2563 (and (shl rGPR:$Rm, (i32 8)), 0xFF000000)))))]>;
2565 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2566 "revsh", ".w\t$Rd, $Rm",
2569 (or (srl (and rGPR:$Rm, 0xFF00), (i32 8)),
2570 (shl rGPR:$Rm, (i32 8))), i16))]>;
2572 def t2PKHBT : T2ThreeReg<
2573 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2574 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2575 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2576 (and (shl rGPR:$Rm, lsl_amt:$sh),
2578 Requires<[HasT2ExtractPack, IsThumb2]> {
2579 let Inst{31-27} = 0b11101;
2580 let Inst{26-25} = 0b01;
2581 let Inst{24-20} = 0b01100;
2582 let Inst{5} = 0; // BT form
2586 let Inst{14-12} = sh{7-5};
2587 let Inst{7-6} = sh{4-3};
2590 // Alternate cases for PKHBT where identities eliminate some nodes.
2591 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2592 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2593 Requires<[HasT2ExtractPack, IsThumb2]>;
2594 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2595 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2596 Requires<[HasT2ExtractPack, IsThumb2]>;
2598 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2599 // will match the pattern below.
2600 def t2PKHTB : T2ThreeReg<
2601 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2602 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2603 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2604 (and (sra rGPR:$Rm, asr_amt:$sh),
2606 Requires<[HasT2ExtractPack, IsThumb2]> {
2607 let Inst{31-27} = 0b11101;
2608 let Inst{26-25} = 0b01;
2609 let Inst{24-20} = 0b01100;
2610 let Inst{5} = 1; // TB form
2614 let Inst{14-12} = sh{7-5};
2615 let Inst{7-6} = sh{4-3};
2618 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2619 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2620 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2621 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2622 Requires<[HasT2ExtractPack, IsThumb2]>;
2623 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2624 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2625 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2626 Requires<[HasT2ExtractPack, IsThumb2]>;
2628 //===----------------------------------------------------------------------===//
2629 // Comparison Instructions...
2631 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2632 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2633 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2635 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_imm:$imm),
2636 (t2CMPri GPR:$lhs, t2_so_imm:$imm)>;
2637 def : T2Pat<(ARMcmpZ GPR:$lhs, rGPR:$rhs),
2638 (t2CMPrr GPR:$lhs, rGPR:$rhs)>;
2639 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_reg:$rhs),
2640 (t2CMPrs GPR:$lhs, t2_so_reg:$rhs)>;
2642 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2643 // Compare-to-zero still works out, just not the relationals
2644 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2645 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2646 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2647 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2648 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2650 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2651 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2653 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2654 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2656 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2657 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2658 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2659 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2660 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2661 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2663 // Conditional moves
2664 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2665 // a two-value operand where a dag node expects two operands. :(
2666 let neverHasSideEffects = 1 in {
2667 def t2MOVCCr : T2TwoReg<
2668 (outs rGPR:$Rd), (ins rGPR:$false, rGPR:$Rm), IIC_iCMOVr,
2669 "mov", ".w\t$Rd, $Rm",
2670 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2671 RegConstraint<"$false = $Rd"> {
2672 let Inst{31-27} = 0b11101;
2673 let Inst{26-25} = 0b01;
2674 let Inst{24-21} = 0b0010;
2675 let Inst{20} = 0; // The S bit.
2676 let Inst{19-16} = 0b1111; // Rn
2677 let Inst{14-12} = 0b000;
2678 let Inst{7-4} = 0b0000;
2681 let isMoveImm = 1 in
2682 def t2MOVCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2683 IIC_iCMOVi, "mov", ".w\t$Rd, $imm",
2684 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2685 RegConstraint<"$false = $Rd"> {
2686 let Inst{31-27} = 0b11110;
2688 let Inst{24-21} = 0b0010;
2689 let Inst{20} = 0; // The S bit.
2690 let Inst{19-16} = 0b1111; // Rn
2694 let isMoveImm = 1 in
2695 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, i32imm_hilo16:$imm),
2697 "movw", "\t$Rd, $imm", []>,
2698 RegConstraint<"$false = $Rd"> {
2699 let Inst{31-27} = 0b11110;
2701 let Inst{24-21} = 0b0010;
2702 let Inst{20} = 0; // The S bit.
2708 let Inst{11-8} = Rd;
2709 let Inst{19-16} = imm{15-12};
2710 let Inst{26} = imm{11};
2711 let Inst{14-12} = imm{10-8};
2712 let Inst{7-0} = imm{7-0};
2715 let isMoveImm = 1 in
2716 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2717 (ins rGPR:$false, i32imm:$src, pred:$p),
2718 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2720 let isMoveImm = 1 in
2721 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2722 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2723 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2724 imm:$cc, CCR:$ccr))*/]>,
2725 RegConstraint<"$false = $Rd"> {
2726 let Inst{31-27} = 0b11110;
2728 let Inst{24-21} = 0b0011;
2729 let Inst{20} = 0; // The S bit.
2730 let Inst{19-16} = 0b1111; // Rn
2734 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2735 string opc, string asm, list<dag> pattern>
2736 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2737 let Inst{31-27} = 0b11101;
2738 let Inst{26-25} = 0b01;
2739 let Inst{24-21} = 0b0010;
2740 let Inst{20} = 0; // The S bit.
2741 let Inst{19-16} = 0b1111; // Rn
2742 let Inst{5-4} = opcod; // Shift type.
2744 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2745 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2746 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2747 RegConstraint<"$false = $Rd">;
2748 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2749 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2750 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2751 RegConstraint<"$false = $Rd">;
2752 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2753 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2754 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2755 RegConstraint<"$false = $Rd">;
2756 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2757 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2758 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2759 RegConstraint<"$false = $Rd">;
2760 } // neverHasSideEffects
2762 //===----------------------------------------------------------------------===//
2763 // Atomic operations intrinsics
2766 // memory barriers protect the atomic sequences
2767 let hasSideEffects = 1 in {
2768 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2769 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2770 Requires<[IsThumb, HasDB]> {
2772 let Inst{31-4} = 0xf3bf8f5;
2773 let Inst{3-0} = opt;
2777 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2779 [/* For disassembly only; pattern left blank */]>,
2780 Requires<[IsThumb, HasDB]> {
2782 let Inst{31-4} = 0xf3bf8f4;
2783 let Inst{3-0} = opt;
2786 // ISB has only full system option -- for disassembly only
2787 def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
2788 [/* For disassembly only; pattern left blank */]>,
2789 Requires<[IsThumb2, HasV7]> {
2790 let Inst{31-4} = 0xf3bf8f6;
2791 let Inst{3-0} = 0b1111;
2794 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2795 InstrItinClass itin, string opc, string asm, string cstr,
2796 list<dag> pattern, bits<4> rt2 = 0b1111>
2797 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2798 let Inst{31-27} = 0b11101;
2799 let Inst{26-20} = 0b0001101;
2800 let Inst{11-8} = rt2;
2801 let Inst{7-6} = 0b01;
2802 let Inst{5-4} = opcod;
2803 let Inst{3-0} = 0b1111;
2807 let Inst{19-16} = Rn;
2808 let Inst{15-12} = Rt;
2810 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2811 InstrItinClass itin, string opc, string asm, string cstr,
2812 list<dag> pattern, bits<4> rt2 = 0b1111>
2813 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2814 let Inst{31-27} = 0b11101;
2815 let Inst{26-20} = 0b0001100;
2816 let Inst{11-8} = rt2;
2817 let Inst{7-6} = 0b01;
2818 let Inst{5-4} = opcod;
2823 let Inst{11-8} = Rd;
2824 let Inst{19-16} = Rn;
2825 let Inst{15-12} = Rt;
2828 let mayLoad = 1 in {
2829 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2830 Size4Bytes, NoItinerary, "ldrexb", "\t$Rt, [$Rn]",
2832 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2833 Size4Bytes, NoItinerary, "ldrexh", "\t$Rt, [$Rn]",
2835 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2836 Size4Bytes, NoItinerary,
2837 "ldrex", "\t$Rt, [$Rn]", "",
2839 let Inst{31-27} = 0b11101;
2840 let Inst{26-20} = 0b0000101;
2841 let Inst{11-8} = 0b1111;
2842 let Inst{7-0} = 0b00000000; // imm8 = 0
2846 let Inst{19-16} = Rn;
2847 let Inst{15-12} = Rt;
2849 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2), (ins rGPR:$Rn),
2850 AddrModeNone, Size4Bytes, NoItinerary,
2851 "ldrexd", "\t$Rt, $Rt2, [$Rn]", "",
2854 let Inst{11-8} = Rt2;
2858 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2859 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2860 AddrModeNone, Size4Bytes, NoItinerary,
2861 "strexb", "\t$Rd, $Rt, [$Rn]", "", []>;
2862 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2863 AddrModeNone, Size4Bytes, NoItinerary,
2864 "strexh", "\t$Rd, $Rt, [$Rn]", "", []>;
2865 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2866 AddrModeNone, Size4Bytes, NoItinerary,
2867 "strex", "\t$Rd, $Rt, [$Rn]", "",
2869 let Inst{31-27} = 0b11101;
2870 let Inst{26-20} = 0b0000100;
2871 let Inst{7-0} = 0b00000000; // imm8 = 0
2876 let Inst{11-8} = Rd;
2877 let Inst{19-16} = Rn;
2878 let Inst{15-12} = Rt;
2880 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2881 (ins rGPR:$Rt, rGPR:$Rt2, rGPR:$Rn),
2882 AddrModeNone, Size4Bytes, NoItinerary,
2883 "strexd", "\t$Rd, $Rt, $Rt2, [$Rn]", "", [],
2886 let Inst{11-8} = Rt2;
2890 // Clear-Exclusive is for disassembly only.
2891 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2892 [/* For disassembly only; pattern left blank */]>,
2893 Requires<[IsARM, HasV7]> {
2894 let Inst{31-20} = 0xf3b;
2895 let Inst{15-14} = 0b10;
2897 let Inst{7-4} = 0b0010;
2900 //===----------------------------------------------------------------------===//
2904 // __aeabi_read_tp preserves the registers r1-r3.
2906 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
2907 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2908 "bl\t__aeabi_read_tp",
2909 [(set R0, ARMthread_pointer)]> {
2910 let Inst{31-27} = 0b11110;
2911 let Inst{15-14} = 0b11;
2916 //===----------------------------------------------------------------------===//
2917 // SJLJ Exception handling intrinsics
2918 // eh_sjlj_setjmp() is an instruction sequence to store the return
2919 // address and save #0 in R0 for the non-longjmp case.
2920 // Since by its nature we may be coming from some other function to get
2921 // here, and we're using the stack frame for the containing function to
2922 // save/restore registers, we can't keep anything live in regs across
2923 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2924 // when we get here from a longjmp(). We force everthing out of registers
2925 // except for our own input by listing the relevant registers in Defs. By
2926 // doing so, we also cause the prologue/epilogue code to actively preserve
2927 // all of the callee-saved resgisters, which is exactly what we want.
2928 // $val is a scratch register for our use.
2930 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2931 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2932 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2933 D31 ], hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2934 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2935 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2936 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2937 Requires<[IsThumb2, HasVFP2]>;
2941 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2942 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2943 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2944 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2945 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2946 Requires<[IsThumb2, NoVFP]>;
2950 //===----------------------------------------------------------------------===//
2951 // Control-Flow Instructions
2954 // FIXME: remove when we have a way to marking a MI with these properties.
2955 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2957 // FIXME: Should pc be an implicit operand like PICADD, etc?
2958 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2959 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2960 def t2LDMIA_RET: T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2961 reglist:$regs, variable_ops),
2963 "ldmia${p}.w\t$Rn!, $regs",
2968 let Inst{31-27} = 0b11101;
2969 let Inst{26-25} = 0b00;
2970 let Inst{24-23} = 0b01; // Increment After
2972 let Inst{21} = 1; // Writeback
2974 let Inst{19-16} = Rn;
2975 let Inst{15-0} = regs;
2978 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2979 let isPredicable = 1 in
2980 def t2B : T2XI<(outs), (ins uncondbrtarget:$target), IIC_Br,
2982 [(br bb:$target)]> {
2983 let Inst{31-27} = 0b11110;
2984 let Inst{15-14} = 0b10;
2988 let Inst{26} = target{19};
2989 let Inst{11} = target{18};
2990 let Inst{13} = target{17};
2991 let Inst{21-16} = target{16-11};
2992 let Inst{10-0} = target{10-0};
2995 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2996 def t2BR_JT : t2PseudoInst<(outs),
2997 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
2998 SizeSpecial, IIC_Br,
2999 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
3001 // FIXME: Add a non-pc based case that can be predicated.
3002 def t2TBB_JT : t2PseudoInst<(outs),
3003 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3004 SizeSpecial, IIC_Br, []>;
3006 def t2TBH_JT : t2PseudoInst<(outs),
3007 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3008 SizeSpecial, IIC_Br, []>;
3010 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3011 "tbb", "\t[$Rn, $Rm]", []> {
3014 let Inst{31-20} = 0b111010001101;
3015 let Inst{19-16} = Rn;
3016 let Inst{15-5} = 0b11110000000;
3017 let Inst{4} = 0; // B form
3021 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3022 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3025 let Inst{31-20} = 0b111010001101;
3026 let Inst{19-16} = Rn;
3027 let Inst{15-5} = 0b11110000000;
3028 let Inst{4} = 1; // H form
3031 } // isNotDuplicable, isIndirectBranch
3033 } // isBranch, isTerminator, isBarrier
3035 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3036 // a two-value operand where a dag node expects two operands. :(
3037 let isBranch = 1, isTerminator = 1 in
3038 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3040 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3041 let Inst{31-27} = 0b11110;
3042 let Inst{15-14} = 0b10;
3046 let Inst{25-22} = p;
3049 let Inst{26} = target{20};
3050 let Inst{11} = target{19};
3051 let Inst{13} = target{18};
3052 let Inst{21-16} = target{17-12};
3053 let Inst{10-0} = target{11-1};
3058 let Defs = [ITSTATE] in
3059 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3060 AddrModeNone, Size2Bytes, IIC_iALUx,
3061 "it$mask\t$cc", "", []> {
3062 // 16-bit instruction.
3063 let Inst{31-16} = 0x0000;
3064 let Inst{15-8} = 0b10111111;
3069 let Inst{3-0} = mask;
3072 // Branch and Exchange Jazelle -- for disassembly only
3074 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3075 [/* For disassembly only; pattern left blank */]> {
3076 let Inst{31-27} = 0b11110;
3078 let Inst{25-20} = 0b111100;
3079 let Inst{15-14} = 0b10;
3083 let Inst{19-16} = func;
3086 // Change Processor State is a system instruction -- for disassembly only.
3087 // The singleton $opt operand contains the following information:
3088 // opt{4-0} = mode from Inst{4-0}
3089 // opt{5} = changemode from Inst{17}
3090 // opt{8-6} = AIF from Inst{8-6}
3091 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
3092 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
3093 [/* For disassembly only; pattern left blank */]> {
3094 let Inst{31-27} = 0b11110;
3096 let Inst{25-20} = 0b111010;
3097 let Inst{15-14} = 0b10;
3103 let Inst{4-0} = opt{4-0};
3106 let Inst{8} = opt{5};
3109 let Inst{5} = opt{6};
3112 let Inst{6} = opt{7};
3115 let Inst{7} = opt{8};
3118 let Inst{10-9} = opt{10-9};
3121 // A6.3.4 Branches and miscellaneous control
3122 // Table A6-14 Change Processor State, and hint instructions
3123 // Helper class for disassembly only.
3124 class T2I_hint<bits<8> op7_0, string opc, string asm>
3125 : T2I<(outs), (ins), NoItinerary, opc, asm,
3126 [/* For disassembly only; pattern left blank */]> {
3127 let Inst{31-20} = 0xf3a;
3128 let Inst{15-14} = 0b10;
3130 let Inst{10-8} = 0b000;
3131 let Inst{7-0} = op7_0;
3134 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3135 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3136 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3137 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3138 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3140 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
3141 [/* For disassembly only; pattern left blank */]> {
3142 let Inst{31-20} = 0xf3a;
3143 let Inst{15-14} = 0b10;
3145 let Inst{10-8} = 0b000;
3146 let Inst{7-4} = 0b1111;
3149 let Inst{3-0} = opt;
3152 // Secure Monitor Call is a system instruction -- for disassembly only
3153 // Option = Inst{19-16}
3154 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
3155 [/* For disassembly only; pattern left blank */]> {
3156 let Inst{31-27} = 0b11110;
3157 let Inst{26-20} = 0b1111111;
3158 let Inst{15-12} = 0b1000;
3161 let Inst{19-16} = opt;
3164 class T2SRS<bits<12> op31_20,
3165 dag oops, dag iops, InstrItinClass itin,
3166 string opc, string asm, list<dag> pattern>
3167 : T2I<oops, iops, itin, opc, asm, pattern> {
3168 let Inst{31-20} = op31_20{11-0};
3171 let Inst{4-0} = mode{4-0};
3174 // Store Return State is a system instruction -- for disassembly only
3175 def t2SRSDBW : T2SRS<0b111010000010,
3176 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3177 [/* For disassembly only; pattern left blank */]>;
3178 def t2SRSDB : T2SRS<0b111010000000,
3179 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3180 [/* For disassembly only; pattern left blank */]>;
3181 def t2SRSIAW : T2SRS<0b111010011010,
3182 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3183 [/* For disassembly only; pattern left blank */]>;
3184 def t2SRSIA : T2SRS<0b111010011000,
3185 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3186 [/* For disassembly only; pattern left blank */]>;
3188 // Return From Exception is a system instruction -- for disassembly only
3190 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3191 string opc, string asm, list<dag> pattern>
3192 : T2I<oops, iops, itin, opc, asm, pattern> {
3193 let Inst{31-20} = op31_20{11-0};
3196 let Inst{19-16} = Rn;
3199 def t2RFEDBW : T2RFE<0b111010000011,
3200 (outs), (ins rGPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3201 [/* For disassembly only; pattern left blank */]>;
3202 def t2RFEDB : T2RFE<0b111010000001,
3203 (outs), (ins rGPR:$Rn), NoItinerary, "rfeab", "\t$Rn",
3204 [/* For disassembly only; pattern left blank */]>;
3205 def t2RFEIAW : T2RFE<0b111010011011,
3206 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3207 [/* For disassembly only; pattern left blank */]>;
3208 def t2RFEIA : T2RFE<0b111010011001,
3209 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3210 [/* For disassembly only; pattern left blank */]>;
3212 //===----------------------------------------------------------------------===//
3213 // Non-Instruction Patterns
3216 // 32-bit immediate using movw + movt.
3217 // This is a single pseudo instruction to make it re-materializable.
3218 // FIXME: Remove this when we can do generalized remat.
3219 let isReMaterializable = 1, isMoveImm = 1 in {
3220 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3221 [(set rGPR:$dst, (i32 imm:$src))]>,
3222 Requires<[IsThumb, HasV6T2]>;
3224 def t2MOV_pic_ga : PseudoInst<(outs rGPR:$dst),
3225 (ins i32imm:$addr, pclabel:$id), IIC_iMOVix2,
3226 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr, imm:$id))]>,
3227 Requires<[IsThumb2, UseMovt]>;
3228 } // isReMaterializable = 1, isMoveImm = 1 in
3230 // ConstantPool, GlobalAddress, and JumpTable
3231 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3232 Requires<[IsThumb2, DontUseMovt]>;
3233 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3234 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3235 Requires<[IsThumb2, UseMovt]>;
3237 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3238 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3240 // Pseudo instruction that combines ldr from constpool and add pc. This should
3241 // be expanded into two instructions late to allow if-conversion and
3243 let canFoldAsLoad = 1, isReMaterializable = 1 in
3244 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3246 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3248 Requires<[IsThumb2]>;
3250 //===----------------------------------------------------------------------===//
3251 // Move between special register and ARM core register -- for disassembly only
3254 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3255 dag oops, dag iops, InstrItinClass itin,
3256 string opc, string asm, list<dag> pattern>
3257 : T2I<oops, iops, itin, opc, asm, pattern> {
3258 let Inst{31-20} = op31_20{11-0};
3259 let Inst{15-14} = op15_14{1-0};
3260 let Inst{12} = op12{0};
3263 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3264 dag oops, dag iops, InstrItinClass itin,
3265 string opc, string asm, list<dag> pattern>
3266 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3268 let Inst{11-8} = Rd;
3271 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3272 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3273 [/* For disassembly only; pattern left blank */]>;
3274 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3275 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3276 [/* For disassembly only; pattern left blank */]>;
3278 class T2MSR<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3279 dag oops, dag iops, InstrItinClass itin,
3280 string opc, string asm, list<dag> pattern>
3281 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3284 let Inst{19-16} = Rn;
3285 let Inst{11-8} = mask;
3288 def t2MSR : T2MSR<0b111100111000, 0b10, 0,
3289 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3291 [/* For disassembly only; pattern left blank */]>;
3292 def t2MSRsys : T2MSR<0b111100111001, 0b10, 0,
3293 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3295 [/* For disassembly only; pattern left blank */]>;