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 string EncoderMethod = "getAddrModeImm12OpValue";
131 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
134 // t2addrmode_imm8 := reg +/- imm8
135 def t2addrmode_imm8 : Operand<i32>,
136 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
137 let PrintMethod = "printT2AddrModeImm8Operand";
138 string EncoderMethod = "getT2AddrModeImm8OpValue";
139 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
142 def t2am_imm8_offset : Operand<i32>,
143 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
144 [], [SDNPWantRoot]> {
145 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
146 string EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
149 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
150 def t2addrmode_imm8s4 : Operand<i32> {
151 let PrintMethod = "printT2AddrModeImm8s4Operand";
152 string EncoderMethod = "getT2AddrModeImm8s4OpValue";
153 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
156 def t2am_imm8s4_offset : Operand<i32> {
157 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
160 // t2addrmode_so_reg := reg + (reg << imm2)
161 def t2addrmode_so_reg : Operand<i32>,
162 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
163 let PrintMethod = "printT2AddrModeSoRegOperand";
164 string EncoderMethod = "getT2AddrModeSORegOpValue";
165 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
169 //===----------------------------------------------------------------------===//
170 // Multiclass helpers...
174 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
175 string opc, string asm, list<dag> pattern>
176 : T2I<oops, iops, itin, opc, asm, pattern> {
180 let Inst{11-8} = Rd{3-0};
181 let Inst{26} = imm{11};
182 let Inst{14-12} = imm{10-8};
183 let Inst{7-0} = imm{7-0};
187 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
188 string opc, string asm, list<dag> pattern>
189 : T2sI<oops, iops, itin, opc, asm, pattern> {
194 let Inst{11-8} = Rd{3-0};
195 let Inst{26} = imm{11};
196 let Inst{14-12} = imm{10-8};
197 let Inst{7-0} = imm{7-0};
200 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
201 string opc, string asm, list<dag> pattern>
202 : T2I<oops, iops, itin, opc, asm, pattern> {
206 let Inst{19-16} = Rn{3-0};
207 let Inst{26} = imm{11};
208 let Inst{14-12} = imm{10-8};
209 let Inst{7-0} = imm{7-0};
213 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
214 string opc, string asm, list<dag> pattern>
215 : T2I<oops, iops, itin, opc, asm, pattern> {
219 let Inst{11-8} = Rd{3-0};
220 let Inst{3-0} = ShiftedRm{3-0};
221 let Inst{5-4} = ShiftedRm{6-5};
222 let Inst{14-12} = ShiftedRm{11-9};
223 let Inst{7-6} = ShiftedRm{8-7};
226 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
227 string opc, string asm, list<dag> pattern>
228 : T2sI<oops, iops, itin, opc, asm, pattern> {
232 let Inst{11-8} = Rd{3-0};
233 let Inst{3-0} = ShiftedRm{3-0};
234 let Inst{5-4} = ShiftedRm{6-5};
235 let Inst{14-12} = ShiftedRm{11-9};
236 let Inst{7-6} = ShiftedRm{8-7};
239 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
240 string opc, string asm, list<dag> pattern>
241 : T2I<oops, iops, itin, opc, asm, pattern> {
245 let Inst{19-16} = Rn{3-0};
246 let Inst{3-0} = ShiftedRm{3-0};
247 let Inst{5-4} = ShiftedRm{6-5};
248 let Inst{14-12} = ShiftedRm{11-9};
249 let Inst{7-6} = ShiftedRm{8-7};
252 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
253 string opc, string asm, list<dag> pattern>
254 : T2I<oops, iops, itin, opc, asm, pattern> {
258 let Inst{11-8} = Rd{3-0};
259 let Inst{3-0} = Rm{3-0};
262 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
263 string opc, string asm, list<dag> pattern>
264 : T2sI<oops, iops, itin, opc, asm, pattern> {
268 let Inst{11-8} = Rd{3-0};
269 let Inst{3-0} = Rm{3-0};
272 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
273 string opc, string asm, list<dag> pattern>
274 : T2I<oops, iops, itin, opc, asm, pattern> {
278 let Inst{19-16} = Rn{3-0};
279 let Inst{3-0} = Rm{3-0};
283 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
284 string opc, string asm, list<dag> pattern>
285 : T2I<oops, iops, itin, opc, asm, pattern> {
289 let Inst{11-8} = Rd{3-0};
290 let Inst{3-0} = Rm{3-0};
293 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
294 string opc, string asm, list<dag> pattern>
295 : T2sI<oops, iops, itin, opc, asm, pattern> {
300 let Inst{11-8} = Rd{3-0};
301 let Inst{19-16} = Rn{3-0};
302 let Inst{26} = imm{11};
303 let Inst{14-12} = imm{10-8};
304 let Inst{7-0} = imm{7-0};
307 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
308 string opc, string asm, list<dag> pattern>
309 : T2I<oops, iops, itin, opc, asm, pattern> {
314 let Inst{11-8} = Rd{3-0};
315 let Inst{3-0} = Rm{3-0};
316 let Inst{14-12} = imm{4-2};
317 let Inst{7-6} = imm{1-0};
320 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
321 string opc, string asm, list<dag> pattern>
322 : T2sI<oops, iops, itin, opc, asm, pattern> {
327 let Inst{11-8} = Rd{3-0};
328 let Inst{3-0} = Rm{3-0};
329 let Inst{14-12} = imm{4-2};
330 let Inst{7-6} = imm{1-0};
333 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
334 string opc, string asm, list<dag> pattern>
335 : T2I<oops, iops, itin, opc, asm, pattern> {
340 let Inst{11-8} = Rd{3-0};
341 let Inst{19-16} = Rn{3-0};
342 let Inst{3-0} = Rm{3-0};
345 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
346 string opc, string asm, list<dag> pattern>
347 : T2sI<oops, iops, itin, opc, asm, pattern> {
352 let Inst{11-8} = Rd{3-0};
353 let Inst{19-16} = Rn{3-0};
354 let Inst{3-0} = Rm{3-0};
357 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
358 string opc, string asm, list<dag> pattern>
359 : T2I<oops, iops, itin, opc, asm, pattern> {
364 let Inst{11-8} = Rd{3-0};
365 let Inst{19-16} = Rn{3-0};
366 let Inst{3-0} = ShiftedRm{3-0};
367 let Inst{5-4} = ShiftedRm{6-5};
368 let Inst{14-12} = ShiftedRm{11-9};
369 let Inst{7-6} = ShiftedRm{8-7};
372 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
373 string opc, string asm, list<dag> pattern>
374 : T2sI<oops, iops, itin, opc, asm, pattern> {
379 let Inst{11-8} = Rd{3-0};
380 let Inst{19-16} = Rn{3-0};
381 let Inst{3-0} = ShiftedRm{3-0};
382 let Inst{5-4} = ShiftedRm{6-5};
383 let Inst{14-12} = ShiftedRm{11-9};
384 let Inst{7-6} = ShiftedRm{8-7};
387 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
388 string opc, string asm, list<dag> pattern>
389 : T2I<oops, iops, itin, opc, asm, pattern> {
395 let Inst{11-8} = Rd{3-0};
396 let Inst{19-16} = Rn{3-0};
397 let Inst{3-0} = Rm{3-0};
398 let Inst{15-12} = Ra{3-0};
402 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
403 /// unary operation that produces a value. These are predicable and can be
404 /// changed to modify CPSR.
405 multiclass T2I_un_irs<bits<4> opcod, string opc,
406 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
407 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
409 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
411 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
412 let isAsCheapAsAMove = Cheap;
413 let isReMaterializable = ReMat;
414 let Inst{31-27} = 0b11110;
416 let Inst{24-21} = opcod;
417 let Inst{19-16} = 0b1111; // Rn
421 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
423 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
424 let Inst{31-27} = 0b11101;
425 let Inst{26-25} = 0b01;
426 let Inst{24-21} = opcod;
427 let Inst{19-16} = 0b1111; // Rn
428 let Inst{14-12} = 0b000; // imm3
429 let Inst{7-6} = 0b00; // imm2
430 let Inst{5-4} = 0b00; // type
433 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
434 opc, ".w\t$Rd, $ShiftedRm",
435 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
436 let Inst{31-27} = 0b11101;
437 let Inst{26-25} = 0b01;
438 let Inst{24-21} = opcod;
439 let Inst{19-16} = 0b1111; // Rn
443 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
444 /// binary operation that produces a value. These are predicable and can be
445 /// changed to modify CPSR.
446 multiclass T2I_bin_irs<bits<4> opcod, string opc,
447 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
448 PatFrag opnode, bit Commutable = 0, string wide = ""> {
450 def ri : T2sTwoRegImm<
451 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
452 opc, "\t$Rd, $Rn, $imm",
453 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
454 let Inst{31-27} = 0b11110;
456 let Inst{24-21} = opcod;
460 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
461 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
462 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
463 let isCommutable = Commutable;
464 let Inst{31-27} = 0b11101;
465 let Inst{26-25} = 0b01;
466 let Inst{24-21} = opcod;
467 let Inst{14-12} = 0b000; // imm3
468 let Inst{7-6} = 0b00; // imm2
469 let Inst{5-4} = 0b00; // type
472 def rs : T2sTwoRegShiftedReg<
473 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
474 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
475 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
476 let Inst{31-27} = 0b11101;
477 let Inst{26-25} = 0b01;
478 let Inst{24-21} = opcod;
482 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
483 // the ".w" prefix to indicate that they are wide.
484 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
485 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
486 PatFrag opnode, bit Commutable = 0> :
487 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w">;
489 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
490 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
491 /// it is equivalent to the T2I_bin_irs counterpart.
492 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
494 def ri : T2sTwoRegImm<
495 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
496 opc, ".w\t$Rd, $Rn, $imm",
497 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
498 let Inst{31-27} = 0b11110;
500 let Inst{24-21} = opcod;
504 def rr : T2sThreeReg<
505 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
506 opc, "\t$Rd, $Rn, $Rm",
507 [/* For disassembly only; pattern left blank */]> {
508 let Inst{31-27} = 0b11101;
509 let Inst{26-25} = 0b01;
510 let Inst{24-21} = opcod;
511 let Inst{14-12} = 0b000; // imm3
512 let Inst{7-6} = 0b00; // imm2
513 let Inst{5-4} = 0b00; // type
516 def rs : T2sTwoRegShiftedReg<
517 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
518 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
519 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
520 let Inst{31-27} = 0b11101;
521 let Inst{26-25} = 0b01;
522 let Inst{24-21} = opcod;
526 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
527 /// instruction modifies the CPSR register.
528 let Defs = [CPSR] in {
529 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
530 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
531 PatFrag opnode, bit Commutable = 0> {
533 def ri : T2TwoRegImm<
534 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
535 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
536 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
537 let Inst{31-27} = 0b11110;
539 let Inst{24-21} = opcod;
540 let Inst{20} = 1; // The S bit.
545 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
546 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $Rm",
547 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
548 let isCommutable = Commutable;
549 let Inst{31-27} = 0b11101;
550 let Inst{26-25} = 0b01;
551 let Inst{24-21} = opcod;
552 let Inst{20} = 1; // The S bit.
553 let Inst{14-12} = 0b000; // imm3
554 let Inst{7-6} = 0b00; // imm2
555 let Inst{5-4} = 0b00; // type
558 def rs : T2TwoRegShiftedReg<
559 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
560 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $ShiftedRm",
561 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
562 let Inst{31-27} = 0b11101;
563 let Inst{26-25} = 0b01;
564 let Inst{24-21} = opcod;
565 let Inst{20} = 1; // The S bit.
570 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
571 /// patterns for a binary operation that produces a value.
572 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
573 bit Commutable = 0> {
575 // The register-immediate version is re-materializable. This is useful
576 // in particular for taking the address of a local.
577 let isReMaterializable = 1 in {
578 def ri : T2sTwoRegImm<
579 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
580 opc, ".w\t$Rd, $Rn, $imm",
581 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
582 let Inst{31-27} = 0b11110;
585 let Inst{23-21} = op23_21;
590 def ri12 : T2TwoRegImm<
591 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
592 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
593 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
594 let Inst{31-27} = 0b11110;
597 let Inst{23-21} = op23_21;
598 let Inst{20} = 0; // The S bit.
602 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), IIC_iALUr,
603 opc, ".w\t$Rd, $Rn, $Rm",
604 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
605 let isCommutable = Commutable;
606 let Inst{31-27} = 0b11101;
607 let Inst{26-25} = 0b01;
609 let Inst{23-21} = op23_21;
610 let Inst{14-12} = 0b000; // imm3
611 let Inst{7-6} = 0b00; // imm2
612 let Inst{5-4} = 0b00; // type
615 def rs : T2sTwoRegShiftedReg<
616 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
617 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
618 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
619 let Inst{31-27} = 0b11101;
620 let Inst{26-25} = 0b01;
622 let Inst{23-21} = op23_21;
626 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
627 /// for a binary operation that produces a value and use the carry
628 /// bit. It's not predicable.
629 let Uses = [CPSR] in {
630 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
631 bit Commutable = 0> {
633 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
634 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
635 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
636 Requires<[IsThumb2]> {
637 let Inst{31-27} = 0b11110;
639 let Inst{24-21} = opcod;
643 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
644 opc, ".w\t$Rd, $Rn, $Rm",
645 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
646 Requires<[IsThumb2]> {
647 let isCommutable = Commutable;
648 let Inst{31-27} = 0b11101;
649 let Inst{26-25} = 0b01;
650 let Inst{24-21} = opcod;
651 let Inst{14-12} = 0b000; // imm3
652 let Inst{7-6} = 0b00; // imm2
653 let Inst{5-4} = 0b00; // type
656 def rs : T2sTwoRegShiftedReg<
657 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
658 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
659 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
660 Requires<[IsThumb2]> {
661 let Inst{31-27} = 0b11101;
662 let Inst{26-25} = 0b01;
663 let Inst{24-21} = opcod;
667 // Carry setting variants
668 let Defs = [CPSR] in {
669 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
670 bit Commutable = 0> {
672 def ri : T2sTwoRegImm<
673 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
674 opc, "\t$Rd, $Rn, $imm",
675 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
676 Requires<[IsThumb2]> {
677 let Inst{31-27} = 0b11110;
679 let Inst{24-21} = opcod;
680 let Inst{20} = 1; // The S bit.
684 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
685 opc, ".w\t$Rd, $Rn, $Rm",
686 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
687 Requires<[IsThumb2]> {
688 let isCommutable = Commutable;
689 let Inst{31-27} = 0b11101;
690 let Inst{26-25} = 0b01;
691 let Inst{24-21} = opcod;
692 let Inst{20} = 1; // The S bit.
693 let Inst{14-12} = 0b000; // imm3
694 let Inst{7-6} = 0b00; // imm2
695 let Inst{5-4} = 0b00; // type
698 def rs : T2sTwoRegShiftedReg<
699 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
700 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
701 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
702 Requires<[IsThumb2]> {
703 let Inst{31-27} = 0b11101;
704 let Inst{26-25} = 0b01;
705 let Inst{24-21} = opcod;
706 let Inst{20} = 1; // The S bit.
712 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
713 /// version is not needed since this is only for codegen.
714 let Defs = [CPSR] in {
715 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
717 def ri : T2TwoRegImm<
718 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
719 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
720 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
721 let Inst{31-27} = 0b11110;
723 let Inst{24-21} = opcod;
724 let Inst{20} = 1; // The S bit.
728 def rs : T2TwoRegShiftedReg<
729 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
730 IIC_iALUsi, !strconcat(opc, "s"), "\t$Rd, $Rn, $ShiftedRm",
731 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
732 let Inst{31-27} = 0b11101;
733 let Inst{26-25} = 0b01;
734 let Inst{24-21} = opcod;
735 let Inst{20} = 1; // The S bit.
740 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
741 // rotate operation that produces a value.
742 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
744 def ri : T2sTwoRegShiftImm<
745 (outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$imm), IIC_iMOVsi,
746 opc, ".w\t$Rd, $Rm, $imm",
747 [(set rGPR:$Rd, (opnode rGPR:$Rm, imm1_31:$imm))]> {
748 let Inst{31-27} = 0b11101;
749 let Inst{26-21} = 0b010010;
750 let Inst{19-16} = 0b1111; // Rn
751 let Inst{5-4} = opcod;
754 def rr : T2sThreeReg<
755 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
756 opc, ".w\t$Rd, $Rn, $Rm",
757 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
758 let Inst{31-27} = 0b11111;
759 let Inst{26-23} = 0b0100;
760 let Inst{22-21} = opcod;
761 let Inst{15-12} = 0b1111;
762 let Inst{7-4} = 0b0000;
766 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
767 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
768 /// a explicit result, only implicitly set CPSR.
769 let isCompare = 1, Defs = [CPSR] in {
770 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
771 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
774 def ri : T2OneRegCmpImm<
775 (outs), (ins GPR:$Rn, t2_so_imm:$imm), iii,
776 opc, ".w\t$Rn, $imm",
777 [(opnode GPR:$Rn, t2_so_imm:$imm)]> {
778 let Inst{31-27} = 0b11110;
780 let Inst{24-21} = opcod;
781 let Inst{20} = 1; // The S bit.
783 let Inst{11-8} = 0b1111; // Rd
786 def rr : T2TwoRegCmp<
787 (outs), (ins GPR:$lhs, rGPR:$rhs), iir,
788 opc, ".w\t$lhs, $rhs",
789 [(opnode GPR:$lhs, rGPR:$rhs)]> {
790 let Inst{31-27} = 0b11101;
791 let Inst{26-25} = 0b01;
792 let Inst{24-21} = opcod;
793 let Inst{20} = 1; // The S bit.
794 let Inst{14-12} = 0b000; // imm3
795 let Inst{11-8} = 0b1111; // Rd
796 let Inst{7-6} = 0b00; // imm2
797 let Inst{5-4} = 0b00; // type
800 def rs : T2OneRegCmpShiftedReg<
801 (outs), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
802 opc, ".w\t$Rn, $ShiftedRm",
803 [(opnode GPR:$Rn, t2_so_reg:$ShiftedRm)]> {
804 let Inst{31-27} = 0b11101;
805 let Inst{26-25} = 0b01;
806 let Inst{24-21} = opcod;
807 let Inst{20} = 1; // The S bit.
808 let Inst{11-8} = 0b1111; // Rd
813 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
814 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
815 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
816 def i12 : T2Ii12<(outs GPR:$Rt), (ins t2addrmode_imm12:$addr), iii,
817 opc, ".w\t$Rt, $addr",
818 [(set GPR:$Rt, (opnode t2addrmode_imm12:$addr))]> {
819 let Inst{31-27} = 0b11111;
820 let Inst{26-25} = 0b00;
821 let Inst{24} = signed;
823 let Inst{22-21} = opcod;
824 let Inst{20} = 1; // load
827 let Inst{15-12} = Rt{3-0};
830 let Inst{19-16} = addr{16-13}; // Rn
831 let Inst{23} = addr{12}; // U
832 let Inst{11-0} = addr{11-0}; // imm
834 def i8 : T2Ii8 <(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), iii,
836 [(set GPR:$Rt, (opnode t2addrmode_imm8:$addr))]> {
837 let Inst{31-27} = 0b11111;
838 let Inst{26-25} = 0b00;
839 let Inst{24} = signed;
841 let Inst{22-21} = opcod;
842 let Inst{20} = 1; // load
844 // Offset: index==TRUE, wback==FALSE
845 let Inst{10} = 1; // The P bit.
846 let Inst{8} = 0; // The W bit.
849 let Inst{15-12} = Rt{3-0};
852 let Inst{19-16} = addr{12-9}; // Rn
853 let Inst{9} = addr{8}; // U
854 let Inst{7-0} = addr{7-0}; // imm
856 def s : T2Iso <(outs GPR:$Rt), (ins t2addrmode_so_reg:$addr), iis,
857 opc, ".w\t$Rt, $addr",
858 [(set GPR:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
859 let Inst{31-27} = 0b11111;
860 let Inst{26-25} = 0b00;
861 let Inst{24} = signed;
863 let Inst{22-21} = opcod;
864 let Inst{20} = 1; // load
865 let Inst{11-6} = 0b000000;
868 let Inst{15-12} = Rt{3-0};
871 let Inst{19-16} = addr{9-6}; // Rn
872 let Inst{3-0} = addr{5-2}; // Rm
873 let Inst{5-4} = addr{1-0}; // imm
876 def pci : tPseudoInst<(outs GPR:$Rt), (ins i32imm:$addr), Size4Bytes, iis,
877 [(set GPR:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]>;
880 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
881 multiclass T2I_st<bits<2> opcod, string opc,
882 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
883 def i12 : T2Ii12<(outs), (ins GPR:$Rt, t2addrmode_imm12:$addr), iii,
884 opc, ".w\t$Rt, $addr",
885 [(opnode GPR:$Rt, t2addrmode_imm12:$addr)]> {
886 let Inst{31-27} = 0b11111;
887 let Inst{26-23} = 0b0001;
888 let Inst{22-21} = opcod;
889 let Inst{20} = 0; // !load
892 let Inst{15-12} = Rt{3-0};
895 let Inst{19-16} = addr{16-13}; // Rn
896 let Inst{23} = addr{12}; // U
897 let Inst{11-0} = addr{11-0}; // imm
899 def i8 : T2Ii8 <(outs), (ins GPR:$Rt, t2addrmode_imm8:$addr), iii,
901 [(opnode GPR:$Rt, t2addrmode_imm8:$addr)]> {
902 let Inst{31-27} = 0b11111;
903 let Inst{26-23} = 0b0000;
904 let Inst{22-21} = opcod;
905 let Inst{20} = 0; // !load
907 // Offset: index==TRUE, wback==FALSE
908 let Inst{10} = 1; // The P bit.
909 let Inst{8} = 0; // The W bit.
912 let Inst{15-12} = Rt{3-0};
915 let Inst{19-16} = addr{12-9}; // Rn
916 let Inst{9} = addr{8}; // U
917 let Inst{7-0} = addr{7-0}; // imm
919 def s : T2Iso <(outs), (ins GPR:$Rt, t2addrmode_so_reg:$addr), iis,
920 opc, ".w\t$Rt, $addr",
921 [(opnode GPR:$Rt, t2addrmode_so_reg:$addr)]> {
922 let Inst{31-27} = 0b11111;
923 let Inst{26-23} = 0b0000;
924 let Inst{22-21} = opcod;
925 let Inst{20} = 0; // !load
926 let Inst{11-6} = 0b000000;
929 let Inst{15-12} = Rt{3-0};
932 let Inst{19-16} = addr{9-6}; // Rn
933 let Inst{3-0} = addr{5-2}; // Rm
934 let Inst{5-4} = addr{1-0}; // imm
938 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
939 /// register and one whose operand is a register rotated by 8/16/24.
940 multiclass T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> {
941 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
943 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
944 let Inst{31-27} = 0b11111;
945 let Inst{26-23} = 0b0100;
946 let Inst{22-20} = opcod;
947 let Inst{19-16} = 0b1111; // Rn
948 let Inst{15-12} = 0b1111;
950 let Inst{5-4} = 0b00; // rotate
952 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
953 opc, ".w\t$Rd, $Rm, ror $rot",
954 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]> {
955 let Inst{31-27} = 0b11111;
956 let Inst{26-23} = 0b0100;
957 let Inst{22-20} = opcod;
958 let Inst{19-16} = 0b1111; // Rn
959 let Inst{15-12} = 0b1111;
963 let Inst{5-4} = rot{1-0}; // rotate
967 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
968 multiclass T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
969 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
971 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>,
972 Requires<[HasT2ExtractPack, IsThumb2]> {
973 let Inst{31-27} = 0b11111;
974 let Inst{26-23} = 0b0100;
975 let Inst{22-20} = opcod;
976 let Inst{19-16} = 0b1111; // Rn
977 let Inst{15-12} = 0b1111;
979 let Inst{5-4} = 0b00; // rotate
981 def r_rot : T2TwoReg<(outs rGPR:$dst), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
982 opc, "\t$dst, $Rm, ror $rot",
983 [(set rGPR:$dst, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
984 Requires<[HasT2ExtractPack, IsThumb2]> {
985 let Inst{31-27} = 0b11111;
986 let Inst{26-23} = 0b0100;
987 let Inst{22-20} = opcod;
988 let Inst{19-16} = 0b1111; // Rn
989 let Inst{15-12} = 0b1111;
993 let Inst{5-4} = rot{1-0}; // rotate
997 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
999 multiclass T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> {
1000 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1001 opc, "\t$Rd, $Rm", []> {
1002 let Inst{31-27} = 0b11111;
1003 let Inst{26-23} = 0b0100;
1004 let Inst{22-20} = opcod;
1005 let Inst{19-16} = 0b1111; // Rn
1006 let Inst{15-12} = 0b1111;
1008 let Inst{5-4} = 0b00; // rotate
1010 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1011 opc, "\t$Rd, $Rm, ror $rot", []> {
1012 let Inst{31-27} = 0b11111;
1013 let Inst{26-23} = 0b0100;
1014 let Inst{22-20} = opcod;
1015 let Inst{19-16} = 0b1111; // Rn
1016 let Inst{15-12} = 0b1111;
1020 let Inst{5-4} = rot{1-0}; // rotate
1024 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1025 /// register and one whose operand is a register rotated by 8/16/24.
1026 multiclass T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> {
1027 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1028 opc, "\t$Rd, $Rn, $Rm",
1029 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
1030 Requires<[HasT2ExtractPack, IsThumb2]> {
1031 let Inst{31-27} = 0b11111;
1032 let Inst{26-23} = 0b0100;
1033 let Inst{22-20} = opcod;
1034 let Inst{15-12} = 0b1111;
1036 let Inst{5-4} = 0b00; // rotate
1038 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1039 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot",
1040 [(set rGPR:$Rd, (opnode rGPR:$Rn,
1041 (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1042 Requires<[HasT2ExtractPack, IsThumb2]> {
1043 let Inst{31-27} = 0b11111;
1044 let Inst{26-23} = 0b0100;
1045 let Inst{22-20} = opcod;
1046 let Inst{15-12} = 0b1111;
1050 let Inst{5-4} = rot{1-0}; // rotate
1054 // DO variant - disassembly only, no pattern
1056 multiclass T2I_exta_rrot_DO<bits<3> opcod, string opc> {
1057 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1058 opc, "\t$Rd, $Rn, $Rm", []> {
1059 let Inst{31-27} = 0b11111;
1060 let Inst{26-23} = 0b0100;
1061 let Inst{22-20} = opcod;
1062 let Inst{15-12} = 0b1111;
1064 let Inst{5-4} = 0b00; // rotate
1066 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1067 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot", []> {
1068 let Inst{31-27} = 0b11111;
1069 let Inst{26-23} = 0b0100;
1070 let Inst{22-20} = opcod;
1071 let Inst{15-12} = 0b1111;
1075 let Inst{5-4} = rot{1-0}; // rotate
1079 //===----------------------------------------------------------------------===//
1081 //===----------------------------------------------------------------------===//
1083 //===----------------------------------------------------------------------===//
1084 // Miscellaneous Instructions.
1087 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1088 string asm, list<dag> pattern>
1089 : T2XI<oops, iops, itin, asm, pattern> {
1093 let Inst{11-8} = Rd{3-0};
1094 let Inst{26} = label{11};
1095 let Inst{14-12} = label{10-8};
1096 let Inst{7-0} = label{7-0};
1099 // LEApcrel - Load a pc-relative address into a register without offending the
1101 let neverHasSideEffects = 1 in {
1102 let isReMaterializable = 1 in
1103 def t2LEApcrel : T2PCOneRegImm<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p), IIC_iALUi,
1104 "adr${p}.w\t$Rd, #$label", []> {
1105 let Inst{31-27} = 0b11110;
1106 let Inst{25-24} = 0b10;
1107 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1110 let Inst{19-16} = 0b1111; // Rn
1115 } // neverHasSideEffects
1116 def t2LEApcrelJT : T2PCOneRegImm<(outs rGPR:$Rd),
1117 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
1118 "adr${p}.w\t$Rd, #${label}_${id}", []> {
1119 let Inst{31-27} = 0b11110;
1120 let Inst{25-24} = 0b10;
1121 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1124 let Inst{19-16} = 0b1111; // Rn
1128 // ADD r, sp, {so_imm|i12}
1129 def t2ADDrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1130 IIC_iALUi, "add", ".w\t$Rd, $sp, $imm", []> {
1131 let Inst{31-27} = 0b11110;
1133 let Inst{24-21} = 0b1000;
1134 let Inst{19-16} = 0b1101; // Rn = sp
1137 def t2ADDrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1138 IIC_iALUi, "addw", "\t$Rd, $sp, $imm", []> {
1139 let Inst{31-27} = 0b11110;
1141 let Inst{24-21} = 0b0000;
1142 let Inst{20} = 0; // The S bit.
1143 let Inst{19-16} = 0b1101; // Rn = sp
1147 // ADD r, sp, so_reg
1148 def t2ADDrSPs : T2sTwoRegShiftedReg<
1149 (outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$ShiftedRm),
1150 IIC_iALUsi, "add", ".w\t$Rd, $sp, $ShiftedRm", []> {
1151 let Inst{31-27} = 0b11101;
1152 let Inst{26-25} = 0b01;
1153 let Inst{24-21} = 0b1000;
1154 let Inst{19-16} = 0b1101; // Rn = sp
1158 // SUB r, sp, {so_imm|i12}
1159 def t2SUBrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1160 IIC_iALUi, "sub", ".w\t$Rd, $sp, $imm", []> {
1161 let Inst{31-27} = 0b11110;
1163 let Inst{24-21} = 0b1101;
1164 let Inst{19-16} = 0b1101; // Rn = sp
1167 def t2SUBrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1168 IIC_iALUi, "subw", "\t$Rd, $sp, $imm", []> {
1169 let Inst{31-27} = 0b11110;
1171 let Inst{24-21} = 0b0101;
1172 let Inst{20} = 0; // The S bit.
1173 let Inst{19-16} = 0b1101; // Rn = sp
1177 // SUB r, sp, so_reg
1178 def t2SUBrSPs : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$imm),
1180 "sub", "\t$Rd, $sp, $imm", []> {
1181 let Inst{31-27} = 0b11101;
1182 let Inst{26-25} = 0b01;
1183 let Inst{24-21} = 0b1101;
1184 let Inst{19-16} = 0b1101; // Rn = sp
1188 // Signed and unsigned division on v7-M
1189 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1190 "sdiv", "\t$Rd, $Rn, $Rm",
1191 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
1192 Requires<[HasDivide, IsThumb2]> {
1193 let Inst{31-27} = 0b11111;
1194 let Inst{26-21} = 0b011100;
1196 let Inst{15-12} = 0b1111;
1197 let Inst{7-4} = 0b1111;
1200 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1201 "udiv", "\t$Rd, $Rn, $Rm",
1202 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
1203 Requires<[HasDivide, IsThumb2]> {
1204 let Inst{31-27} = 0b11111;
1205 let Inst{26-21} = 0b011101;
1207 let Inst{15-12} = 0b1111;
1208 let Inst{7-4} = 0b1111;
1211 //===----------------------------------------------------------------------===//
1212 // Load / store Instructions.
1216 let canFoldAsLoad = 1, isReMaterializable = 1 in
1217 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
1218 UnOpFrag<(load node:$Src)>>;
1220 // Loads with zero extension
1221 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1222 UnOpFrag<(zextloadi16 node:$Src)>>;
1223 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1224 UnOpFrag<(zextloadi8 node:$Src)>>;
1226 // Loads with sign extension
1227 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1228 UnOpFrag<(sextloadi16 node:$Src)>>;
1229 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1230 UnOpFrag<(sextloadi8 node:$Src)>>;
1232 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1234 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1235 (ins t2addrmode_imm8s4:$addr),
1236 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", []>;
1237 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1239 // zextload i1 -> zextload i8
1240 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1241 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1242 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
1243 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1244 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1245 (t2LDRBs t2addrmode_so_reg:$addr)>;
1246 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1247 (t2LDRBpci tconstpool:$addr)>;
1249 // extload -> zextload
1250 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1252 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1253 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1254 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
1255 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1256 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1257 (t2LDRBs t2addrmode_so_reg:$addr)>;
1258 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1259 (t2LDRBpci tconstpool:$addr)>;
1261 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1262 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1263 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
1264 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1265 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1266 (t2LDRBs t2addrmode_so_reg:$addr)>;
1267 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1268 (t2LDRBpci tconstpool:$addr)>;
1270 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1271 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1272 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
1273 (t2LDRHi8 t2addrmode_imm8:$addr)>;
1274 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1275 (t2LDRHs t2addrmode_so_reg:$addr)>;
1276 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1277 (t2LDRHpci tconstpool:$addr)>;
1279 // FIXME: The destination register of the loads and stores can't be PC, but
1280 // can be SP. We need another regclass (similar to rGPR) to represent
1281 // that. Not a pressing issue since these are selected manually,
1286 class T2Iidxld<bit signed, bits<2> opcod, bit pre,
1288 AddrMode am, IndexMode im, InstrItinClass itin,
1289 string opc, string asm, string cstr, list<dag> pattern>
1290 : T2Iidxldst<signed, opcod, 1, pre, oops,
1291 iops, am,im,itin, opc, asm, cstr, pattern>;
1292 class T2Iidxst<bit signed, bits<2> opcod, bit pre,
1294 AddrMode am, IndexMode im, InstrItinClass itin,
1295 string opc, string asm, string cstr, list<dag> pattern>
1296 : T2Iidxldst<signed, opcod, 0, pre, oops,
1297 iops, am,im,itin, opc, asm, cstr, pattern>;
1299 let mayLoad = 1, neverHasSideEffects = 1 in {
1300 def t2LDR_PRE : T2Iidxld<0, 0b10, 1, (outs GPR:$Rt, GPR:$Rn),
1301 (ins t2addrmode_imm8:$addr),
1302 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1303 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1306 def t2LDR_POST : T2Iidxld<0, 0b10, 0, (outs GPR:$Rt, GPR:$Rn),
1307 (ins GPR:$base, t2am_imm8_offset:$offset),
1308 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1309 "ldr", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1312 def t2LDRB_PRE : T2Iidxld<0, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1313 (ins t2addrmode_imm8:$addr),
1314 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1315 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1317 def t2LDRB_POST : T2Iidxld<0, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1318 (ins GPR:$base, t2am_imm8_offset:$offset),
1319 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1320 "ldrb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1323 def t2LDRH_PRE : T2Iidxld<0, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1324 (ins t2addrmode_imm8:$addr),
1325 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1326 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1328 def t2LDRH_POST : T2Iidxld<0, 0b01, 0, (outs GPR:$Rt, GPR:$Rn),
1329 (ins GPR:$base, t2am_imm8_offset:$offset),
1330 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1331 "ldrh", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1334 def t2LDRSB_PRE : T2Iidxld<1, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1335 (ins t2addrmode_imm8:$addr),
1336 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1337 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1339 def t2LDRSB_POST : T2Iidxld<1, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1340 (ins GPR:$base, t2am_imm8_offset:$offset),
1341 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1342 "ldrsb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1345 def t2LDRSH_PRE : T2Iidxld<1, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1346 (ins t2addrmode_imm8:$addr),
1347 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1348 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1350 def t2LDRSH_POST : T2Iidxld<1, 0b01, 0, (outs GPR:$dst, GPR:$Rn),
1351 (ins GPR:$base, t2am_imm8_offset:$offset),
1352 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1353 "ldrsh", "\t$dst, [$Rn], $offset", "$base = $Rn",
1355 } // mayLoad = 1, neverHasSideEffects = 1
1357 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1358 // for disassembly only.
1359 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1360 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1361 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1362 "\t$Rt, $addr", []> {
1363 let Inst{31-27} = 0b11111;
1364 let Inst{26-25} = 0b00;
1365 let Inst{24} = signed;
1367 let Inst{22-21} = type;
1368 let Inst{20} = 1; // load
1370 let Inst{10-8} = 0b110; // PUW.
1374 let Inst{15-12} = Rt{3-0};
1375 let Inst{19-16} = addr{12-9};
1376 let Inst{7-0} = addr{7-0};
1379 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1380 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1381 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1382 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1383 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1386 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1387 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1388 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1389 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1390 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1391 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1394 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1395 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1396 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1397 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
1400 def t2STR_PRE : T2Iidxst<0, 0b10, 1, (outs GPR:$base_wb),
1401 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1402 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1403 "str", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1405 (pre_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1407 def t2STR_POST : T2Iidxst<0, 0b10, 0, (outs GPR:$base_wb),
1408 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1409 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1410 "str", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1412 (post_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1414 def t2STRH_PRE : T2Iidxst<0, 0b01, 1, (outs GPR:$base_wb),
1415 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1416 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1417 "strh", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1419 (pre_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1421 def t2STRH_POST : T2Iidxst<0, 0b01, 0, (outs GPR:$base_wb),
1422 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1423 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1424 "strh", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1426 (post_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1428 def t2STRB_PRE : T2Iidxst<0, 0b00, 1, (outs GPR:$base_wb),
1429 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1430 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1431 "strb", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1433 (pre_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1435 def t2STRB_POST : T2Iidxst<0, 0b00, 0, (outs GPR:$base_wb),
1436 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1437 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1438 "strb", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1440 (post_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1442 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1444 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1445 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1446 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1447 "\t$Rt, $addr", []> {
1448 let Inst{31-27} = 0b11111;
1449 let Inst{26-25} = 0b00;
1450 let Inst{24} = 0; // not signed
1452 let Inst{22-21} = type;
1453 let Inst{20} = 0; // store
1455 let Inst{10-8} = 0b110; // PUW
1459 let Inst{15-12} = Rt{3-0};
1460 let Inst{19-16} = addr{12-9};
1461 let Inst{7-0} = addr{7-0};
1464 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1465 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1466 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1468 // ldrd / strd pre / post variants
1469 // For disassembly only.
1471 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1472 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1473 "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1475 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1476 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1477 "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
1479 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1480 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1481 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1483 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1484 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1485 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
1487 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1488 // data/instruction access. These are for disassembly only.
1489 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1490 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1491 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1493 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1495 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1496 let Inst{31-25} = 0b1111100;
1497 let Inst{24} = instr;
1499 let Inst{21} = write;
1501 let Inst{15-12} = 0b1111;
1504 let Inst{19-16} = addr{16-13}; // Rn
1505 let Inst{23} = addr{12}; // U
1506 let Inst{11-0} = addr{11-0}; // imm12
1509 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1511 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1512 let Inst{31-25} = 0b1111100;
1513 let Inst{24} = instr;
1514 let Inst{23} = 0; // U = 0
1516 let Inst{21} = write;
1518 let Inst{15-12} = 0b1111;
1519 let Inst{11-8} = 0b1100;
1522 let Inst{19-16} = addr{12-9}; // Rn
1523 let Inst{7-0} = addr{7-0}; // imm8
1526 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1528 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1529 let Inst{31-25} = 0b1111100;
1530 let Inst{24} = instr;
1531 let Inst{23} = 0; // add = TRUE for T1
1533 let Inst{21} = write;
1535 let Inst{15-12} = 0b1111;
1536 let Inst{11-6} = 0000000;
1539 let Inst{19-16} = addr{9-6}; // Rn
1540 let Inst{3-0} = addr{5-2}; // Rm
1541 let Inst{5-4} = addr{1-0}; // imm2
1545 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1546 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1547 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1549 //===----------------------------------------------------------------------===//
1550 // Load / store multiple Instructions.
1553 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1554 InstrItinClass itin_upd, bit L_bit> {
1556 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1557 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1561 let Inst{31-27} = 0b11101;
1562 let Inst{26-25} = 0b00;
1563 let Inst{24-23} = 0b01; // Increment After
1565 let Inst{21} = 0; // No writeback
1566 let Inst{20} = L_bit;
1567 let Inst{19-16} = Rn;
1568 let Inst{15-0} = regs;
1571 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1572 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1576 let Inst{31-27} = 0b11101;
1577 let Inst{26-25} = 0b00;
1578 let Inst{24-23} = 0b01; // Increment After
1580 let Inst{21} = 1; // Writeback
1581 let Inst{20} = L_bit;
1582 let Inst{19-16} = Rn;
1583 let Inst{15-0} = regs;
1586 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1587 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1591 let Inst{31-27} = 0b11101;
1592 let Inst{26-25} = 0b00;
1593 let Inst{24-23} = 0b10; // Decrement Before
1595 let Inst{21} = 0; // No writeback
1596 let Inst{20} = L_bit;
1597 let Inst{19-16} = Rn;
1598 let Inst{15-0} = regs;
1601 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1602 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1606 let Inst{31-27} = 0b11101;
1607 let Inst{26-25} = 0b00;
1608 let Inst{24-23} = 0b10; // Decrement Before
1610 let Inst{21} = 1; // Writeback
1611 let Inst{20} = L_bit;
1612 let Inst{19-16} = Rn;
1613 let Inst{15-0} = regs;
1617 let neverHasSideEffects = 1 in {
1619 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1620 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1622 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1623 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1625 } // neverHasSideEffects
1628 //===----------------------------------------------------------------------===//
1629 // Move Instructions.
1632 let neverHasSideEffects = 1 in
1633 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1634 "mov", ".w\t$Rd, $Rm", []> {
1635 let Inst{31-27} = 0b11101;
1636 let Inst{26-25} = 0b01;
1637 let Inst{24-21} = 0b0010;
1638 let Inst{19-16} = 0b1111; // Rn
1639 let Inst{14-12} = 0b000;
1640 let Inst{7-4} = 0b0000;
1643 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1644 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1645 AddedComplexity = 1 in
1646 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1647 "mov", ".w\t$Rd, $imm",
1648 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1649 let Inst{31-27} = 0b11110;
1651 let Inst{24-21} = 0b0010;
1652 let Inst{19-16} = 0b1111; // Rn
1656 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1657 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins i32imm:$imm), IIC_iMOVi,
1658 "movw", "\t$Rd, $imm",
1659 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1660 let Inst{31-27} = 0b11110;
1662 let Inst{24-21} = 0b0010;
1663 let Inst{20} = 0; // The S bit.
1669 let Inst{11-8} = Rd{3-0};
1670 let Inst{19-16} = imm{15-12};
1671 let Inst{26} = imm{11};
1672 let Inst{14-12} = imm{10-8};
1673 let Inst{7-0} = imm{7-0};
1676 let Constraints = "$src = $Rd" in
1677 def t2MOVTi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1678 "movt", "\t$Rd, $imm",
1680 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1681 let Inst{31-27} = 0b11110;
1683 let Inst{24-21} = 0b0110;
1684 let Inst{20} = 0; // The S bit.
1690 let Inst{11-8} = Rd{3-0};
1691 let Inst{19-16} = imm{15-12};
1692 let Inst{26} = imm{11};
1693 let Inst{14-12} = imm{10-8};
1694 let Inst{7-0} = imm{7-0};
1697 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1699 //===----------------------------------------------------------------------===//
1700 // Extend Instructions.
1705 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1706 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1707 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1708 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1709 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1711 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1712 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1713 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1714 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1715 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1717 // TODO: SXT(A){B|H}16 - done for disassembly only
1721 let AddedComplexity = 16 in {
1722 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1723 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1724 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1725 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1726 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1727 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1729 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1730 // The transformation should probably be done as a combiner action
1731 // instead so we can include a check for masking back in the upper
1732 // eight bits of the source into the lower eight bits of the result.
1733 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1734 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1735 // Requires<[HasT2ExtractPack, IsThumb2]>;
1736 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1737 (t2UXTB16r_rot rGPR:$Src, 8)>,
1738 Requires<[HasT2ExtractPack, IsThumb2]>;
1740 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1741 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1742 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1743 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1744 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1747 //===----------------------------------------------------------------------===//
1748 // Arithmetic Instructions.
1751 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1752 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1753 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1754 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1756 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1757 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1758 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1759 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1760 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1761 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1762 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1764 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1765 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1766 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1767 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1768 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1769 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1770 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1771 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1774 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1775 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1776 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1777 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1779 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1780 // The assume-no-carry-in form uses the negation of the input since add/sub
1781 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1782 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1784 // The AddedComplexity preferences the first variant over the others since
1785 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1786 let AddedComplexity = 1 in
1787 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1788 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1789 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1790 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1791 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1792 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1793 let AddedComplexity = 1 in
1794 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1795 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1796 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1797 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1798 // The with-carry-in form matches bitwise not instead of the negation.
1799 // Effectively, the inverse interpretation of the carry flag already accounts
1800 // for part of the negation.
1801 let AddedComplexity = 1 in
1802 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1803 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1804 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1805 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1807 // Select Bytes -- for disassembly only
1809 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1810 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []> {
1811 let Inst{31-27} = 0b11111;
1812 let Inst{26-24} = 0b010;
1814 let Inst{22-20} = 0b010;
1815 let Inst{15-12} = 0b1111;
1817 let Inst{6-4} = 0b000;
1820 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1821 // And Miscellaneous operations -- for disassembly only
1822 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1823 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1824 : T2I<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), NoItinerary, opc,
1825 "\t$Rd, $Rn, $Rm", pat> {
1826 let Inst{31-27} = 0b11111;
1827 let Inst{26-23} = 0b0101;
1828 let Inst{22-20} = op22_20;
1829 let Inst{15-12} = 0b1111;
1830 let Inst{7-4} = op7_4;
1836 let Inst{11-8} = Rd{3-0};
1837 let Inst{19-16} = Rn{3-0};
1838 let Inst{3-0} = Rm{3-0};
1841 // Saturating add/subtract -- for disassembly only
1843 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1844 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))]>;
1845 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1846 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1847 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1848 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1849 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1850 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1851 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1852 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))]>;
1853 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1854 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1855 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1856 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1857 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1858 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1859 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1860 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1862 // Signed/Unsigned add/subtract -- for disassembly only
1864 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1865 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1866 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1867 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1868 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1869 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1870 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1871 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1872 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1873 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1874 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1875 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1877 // Signed/Unsigned halving add/subtract -- for disassembly only
1879 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1880 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1881 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1882 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1883 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1884 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1885 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1886 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1887 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1888 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1889 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1890 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1892 // Helper class for disassembly only
1893 // A6.3.16 & A6.3.17
1894 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1895 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1896 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1897 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1898 let Inst{31-27} = 0b11111;
1899 let Inst{26-24} = 0b011;
1900 let Inst{23} = long;
1901 let Inst{22-20} = op22_20;
1902 let Inst{7-4} = op7_4;
1905 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1906 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1907 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1908 let Inst{31-27} = 0b11111;
1909 let Inst{26-24} = 0b011;
1910 let Inst{23} = long;
1911 let Inst{22-20} = op22_20;
1912 let Inst{7-4} = op7_4;
1915 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1917 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1918 (ins rGPR:$Rn, rGPR:$Rm),
1919 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []> {
1920 let Inst{15-12} = 0b1111;
1922 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1923 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1924 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>;
1926 // Signed/Unsigned saturate -- for disassembly only
1928 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1929 string opc, string asm, list<dag> pattern>
1930 : T2I<oops, iops, itin, opc, asm, pattern> {
1936 let Inst{11-8} = Rd{3-0};
1937 let Inst{19-16} = Rn{3-0};
1938 let Inst{4-0} = sat_imm{4-0};
1939 let Inst{21} = sh{6};
1940 let Inst{14-12} = sh{4-2};
1941 let Inst{7-6} = sh{1-0};
1945 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1946 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1947 [/* For disassembly only; pattern left blank */]> {
1948 let Inst{31-27} = 0b11110;
1949 let Inst{25-22} = 0b1100;
1954 def t2SSAT16: T2SatI<
1955 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
1956 "ssat16", "\t$Rd, $sat_imm, $Rn",
1957 [/* For disassembly only; pattern left blank */]> {
1958 let Inst{31-27} = 0b11110;
1959 let Inst{25-22} = 0b1100;
1962 let Inst{21} = 1; // sh = '1'
1963 let Inst{14-12} = 0b000; // imm3 = '000'
1964 let Inst{7-6} = 0b00; // imm2 = '00'
1968 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1969 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
1970 [/* For disassembly only; pattern left blank */]> {
1971 let Inst{31-27} = 0b11110;
1972 let Inst{25-22} = 0b1110;
1977 def t2USAT16: T2SatI<
1978 (outs rGPR:$dst), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
1979 "usat16", "\t$dst, $sat_imm, $Rn",
1980 [/* For disassembly only; pattern left blank */]> {
1981 let Inst{31-27} = 0b11110;
1982 let Inst{25-22} = 0b1110;
1985 let Inst{21} = 1; // sh = '1'
1986 let Inst{14-12} = 0b000; // imm3 = '000'
1987 let Inst{7-6} = 0b00; // imm2 = '00'
1990 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
1991 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
1993 //===----------------------------------------------------------------------===//
1994 // Shift and rotate Instructions.
1997 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
1998 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
1999 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2000 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2002 let Uses = [CPSR] in {
2003 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2004 "rrx", "\t$Rd, $Rm",
2005 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2006 let Inst{31-27} = 0b11101;
2007 let Inst{26-25} = 0b01;
2008 let Inst{24-21} = 0b0010;
2009 let Inst{19-16} = 0b1111; // Rn
2010 let Inst{14-12} = 0b000;
2011 let Inst{7-4} = 0b0011;
2015 let Defs = [CPSR] in {
2016 def t2MOVsrl_flag : T2TwoRegShiftImm<
2017 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2018 "lsrs", ".w\t$Rd, $Rm, #1",
2019 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2020 let Inst{31-27} = 0b11101;
2021 let Inst{26-25} = 0b01;
2022 let Inst{24-21} = 0b0010;
2023 let Inst{20} = 1; // The S bit.
2024 let Inst{19-16} = 0b1111; // Rn
2025 let Inst{5-4} = 0b01; // Shift type.
2026 // Shift amount = Inst{14-12:7-6} = 1.
2027 let Inst{14-12} = 0b000;
2028 let Inst{7-6} = 0b01;
2030 def t2MOVsra_flag : T2TwoRegShiftImm<
2031 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2032 "asrs", ".w\t$Rd, $Rm, #1",
2033 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2034 let Inst{31-27} = 0b11101;
2035 let Inst{26-25} = 0b01;
2036 let Inst{24-21} = 0b0010;
2037 let Inst{20} = 1; // The S bit.
2038 let Inst{19-16} = 0b1111; // Rn
2039 let Inst{5-4} = 0b10; // Shift type.
2040 // Shift amount = Inst{14-12:7-6} = 1.
2041 let Inst{14-12} = 0b000;
2042 let Inst{7-6} = 0b01;
2046 //===----------------------------------------------------------------------===//
2047 // Bitwise Instructions.
2050 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2051 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2052 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2053 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2054 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2055 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2056 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2057 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2058 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2060 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2061 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2062 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2064 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2065 string opc, string asm, list<dag> pattern>
2066 : T2I<oops, iops, itin, opc, asm, pattern> {
2071 let Inst{11-8} = Rd{3-0};
2072 let Inst{4-0} = msb{4-0};
2073 let Inst{14-12} = lsb{4-2};
2074 let Inst{7-6} = lsb{1-0};
2077 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2078 string opc, string asm, list<dag> pattern>
2079 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2082 let Inst{19-16} = Rn{3-0};
2085 let Constraints = "$src = $Rd" in
2086 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2087 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2088 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2089 let Inst{31-27} = 0b11110;
2091 let Inst{24-20} = 0b10110;
2092 let Inst{19-16} = 0b1111; // Rn
2096 let msb{4-0} = imm{9-5};
2097 let lsb{4-0} = imm{4-0};
2100 def t2SBFX: T2TwoRegBitFI<
2101 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2102 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2103 let Inst{31-27} = 0b11110;
2105 let Inst{24-20} = 0b10100;
2109 def t2UBFX: T2TwoRegBitFI<
2110 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2111 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2112 let Inst{31-27} = 0b11110;
2114 let Inst{24-20} = 0b11100;
2118 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2119 let Constraints = "$src = $Rd" in
2120 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2121 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2122 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2123 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2124 bf_inv_mask_imm:$imm))]> {
2125 let Inst{31-27} = 0b11110;
2127 let Inst{24-20} = 0b10110;
2131 let msb{4-0} = imm{9-5};
2132 let lsb{4-0} = imm{4-0};
2135 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2136 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2137 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2139 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2140 let AddedComplexity = 1 in
2141 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2142 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2143 UnOpFrag<(not node:$Src)>, 1, 1>;
2146 let AddedComplexity = 1 in
2147 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2148 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2150 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2151 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2152 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2153 Requires<[IsThumb2]>;
2155 def : T2Pat<(t2_so_imm_not:$src),
2156 (t2MVNi t2_so_imm_not:$src)>;
2158 //===----------------------------------------------------------------------===//
2159 // Multiply Instructions.
2161 let isCommutable = 1 in
2162 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2163 "mul", "\t$Rd, $Rn, $Rm",
2164 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2165 let Inst{31-27} = 0b11111;
2166 let Inst{26-23} = 0b0110;
2167 let Inst{22-20} = 0b000;
2168 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2169 let Inst{7-4} = 0b0000; // Multiply
2172 def t2MLA: T2FourReg<
2173 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2174 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2175 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2176 let Inst{31-27} = 0b11111;
2177 let Inst{26-23} = 0b0110;
2178 let Inst{22-20} = 0b000;
2179 let Inst{7-4} = 0b0000; // Multiply
2182 def t2MLS: T2FourReg<
2183 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2184 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2185 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2186 let Inst{31-27} = 0b11111;
2187 let Inst{26-23} = 0b0110;
2188 let Inst{22-20} = 0b000;
2189 let Inst{7-4} = 0b0001; // Multiply and Subtract
2192 // Extra precision multiplies with low / high results
2193 let neverHasSideEffects = 1 in {
2194 let isCommutable = 1 in {
2195 def t2SMULL : T2FourReg<
2196 (outs rGPR:$Rd, rGPR:$Ra),
2197 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2198 "smull", "\t$Rd, $Ra, $Rn, $Rm", []> {
2199 let Inst{31-27} = 0b11111;
2200 let Inst{26-23} = 0b0111;
2201 let Inst{22-20} = 0b000;
2202 let Inst{7-4} = 0b0000;
2205 def t2UMULL : T2FourReg<
2206 (outs rGPR:$Rd, rGPR:$Ra),
2207 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2208 "umull", "\t$Rd, $Ra, $Rn, $Rm", []> {
2209 let Inst{31-27} = 0b11111;
2210 let Inst{26-23} = 0b0111;
2211 let Inst{22-20} = 0b010;
2212 let Inst{7-4} = 0b0000;
2216 // Multiply + accumulate
2217 def t2SMLAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
2218 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2219 "smlal", "\t$Ra, $Rd, $Rn, $Rm", []>{
2220 let Inst{31-27} = 0b11111;
2221 let Inst{26-23} = 0b0111;
2222 let Inst{22-20} = 0b100;
2223 let Inst{7-4} = 0b0000;
2226 def t2UMLAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
2227 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2228 "umlal", "\t$Ra, $Rd, $Rn, $Rm", []>{
2229 let Inst{31-27} = 0b11111;
2230 let Inst{26-23} = 0b0111;
2231 let Inst{22-20} = 0b110;
2232 let Inst{7-4} = 0b0000;
2235 def t2UMAAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
2236 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2237 "umaal", "\t$Ra, $Rd, $Rn, $Rm", []>{
2238 let Inst{31-27} = 0b11111;
2239 let Inst{26-23} = 0b0111;
2240 let Inst{22-20} = 0b110;
2241 let Inst{7-4} = 0b0110;
2243 } // neverHasSideEffects
2245 // Rounding variants of the below included for disassembly only
2247 // Most significant word multiply
2248 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2249 "smmul", "\t$Rd, $Rn, $Rm",
2250 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]> {
2251 let Inst{31-27} = 0b11111;
2252 let Inst{26-23} = 0b0110;
2253 let Inst{22-20} = 0b101;
2254 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2255 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2258 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2259 "smmulr", "\t$Rd, $Rn, $Rm", []> {
2260 let Inst{31-27} = 0b11111;
2261 let Inst{26-23} = 0b0110;
2262 let Inst{22-20} = 0b101;
2263 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2264 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2267 def t2SMMLA : T2FourReg<
2268 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2269 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2270 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]> {
2271 let Inst{31-27} = 0b11111;
2272 let Inst{26-23} = 0b0110;
2273 let Inst{22-20} = 0b101;
2274 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2277 def t2SMMLAR: T2FourReg<
2278 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2279 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []> {
2280 let Inst{31-27} = 0b11111;
2281 let Inst{26-23} = 0b0110;
2282 let Inst{22-20} = 0b101;
2283 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2286 def t2SMMLS: T2FourReg<
2287 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2288 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2289 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]> {
2290 let Inst{31-27} = 0b11111;
2291 let Inst{26-23} = 0b0110;
2292 let Inst{22-20} = 0b110;
2293 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2296 def t2SMMLSR:T2FourReg<
2297 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2298 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []> {
2299 let Inst{31-27} = 0b11111;
2300 let Inst{26-23} = 0b0110;
2301 let Inst{22-20} = 0b110;
2302 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2305 multiclass T2I_smul<string opc, PatFrag opnode> {
2306 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2307 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2308 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2309 (sext_inreg rGPR:$Rm, i16)))]> {
2310 let Inst{31-27} = 0b11111;
2311 let Inst{26-23} = 0b0110;
2312 let Inst{22-20} = 0b001;
2313 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2314 let Inst{7-6} = 0b00;
2315 let Inst{5-4} = 0b00;
2318 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2319 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2320 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2321 (sra rGPR:$Rm, (i32 16))))]> {
2322 let Inst{31-27} = 0b11111;
2323 let Inst{26-23} = 0b0110;
2324 let Inst{22-20} = 0b001;
2325 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2326 let Inst{7-6} = 0b00;
2327 let Inst{5-4} = 0b01;
2330 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2331 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2332 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2333 (sext_inreg rGPR:$Rm, i16)))]> {
2334 let Inst{31-27} = 0b11111;
2335 let Inst{26-23} = 0b0110;
2336 let Inst{22-20} = 0b001;
2337 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2338 let Inst{7-6} = 0b00;
2339 let Inst{5-4} = 0b10;
2342 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2343 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2344 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2345 (sra rGPR:$Rm, (i32 16))))]> {
2346 let Inst{31-27} = 0b11111;
2347 let Inst{26-23} = 0b0110;
2348 let Inst{22-20} = 0b001;
2349 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2350 let Inst{7-6} = 0b00;
2351 let Inst{5-4} = 0b11;
2354 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2355 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2356 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2357 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]> {
2358 let Inst{31-27} = 0b11111;
2359 let Inst{26-23} = 0b0110;
2360 let Inst{22-20} = 0b011;
2361 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2362 let Inst{7-6} = 0b00;
2363 let Inst{5-4} = 0b00;
2366 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2367 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2368 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2369 (sra rGPR:$Rm, (i32 16))), (i32 16)))]> {
2370 let Inst{31-27} = 0b11111;
2371 let Inst{26-23} = 0b0110;
2372 let Inst{22-20} = 0b011;
2373 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2374 let Inst{7-6} = 0b00;
2375 let Inst{5-4} = 0b01;
2380 multiclass T2I_smla<string opc, PatFrag opnode> {
2382 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2383 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2384 [(set rGPR:$Rd, (add rGPR:$Ra,
2385 (opnode (sext_inreg rGPR:$Rn, i16),
2386 (sext_inreg rGPR:$Rm, i16))))]> {
2387 let Inst{31-27} = 0b11111;
2388 let Inst{26-23} = 0b0110;
2389 let Inst{22-20} = 0b001;
2390 let Inst{7-6} = 0b00;
2391 let Inst{5-4} = 0b00;
2395 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2396 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2397 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2398 (sra rGPR:$Rm, (i32 16)))))]> {
2399 let Inst{31-27} = 0b11111;
2400 let Inst{26-23} = 0b0110;
2401 let Inst{22-20} = 0b001;
2402 let Inst{7-6} = 0b00;
2403 let Inst{5-4} = 0b01;
2407 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2408 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2409 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2410 (sext_inreg rGPR:$Rm, i16))))]> {
2411 let Inst{31-27} = 0b11111;
2412 let Inst{26-23} = 0b0110;
2413 let Inst{22-20} = 0b001;
2414 let Inst{7-6} = 0b00;
2415 let Inst{5-4} = 0b10;
2419 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2420 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2421 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2422 (sra rGPR:$Rm, (i32 16)))))]> {
2423 let Inst{31-27} = 0b11111;
2424 let Inst{26-23} = 0b0110;
2425 let Inst{22-20} = 0b001;
2426 let Inst{7-6} = 0b00;
2427 let Inst{5-4} = 0b11;
2431 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2432 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2433 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2434 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]> {
2435 let Inst{31-27} = 0b11111;
2436 let Inst{26-23} = 0b0110;
2437 let Inst{22-20} = 0b011;
2438 let Inst{7-6} = 0b00;
2439 let Inst{5-4} = 0b00;
2443 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2444 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2445 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2446 (sra rGPR:$Rm, (i32 16))), (i32 16))))]> {
2447 let Inst{31-27} = 0b11111;
2448 let Inst{26-23} = 0b0110;
2449 let Inst{22-20} = 0b011;
2450 let Inst{7-6} = 0b00;
2451 let Inst{5-4} = 0b01;
2455 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2456 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2458 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2459 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2460 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2461 [/* For disassembly only; pattern left blank */]>;
2462 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2463 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2464 [/* For disassembly only; pattern left blank */]>;
2465 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2466 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2467 [/* For disassembly only; pattern left blank */]>;
2468 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2469 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2470 [/* For disassembly only; pattern left blank */]>;
2472 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2473 // These are for disassembly only.
2475 def t2SMUAD: T2ThreeReg_mac<
2476 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2477 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []> {
2478 let Inst{15-12} = 0b1111;
2480 def t2SMUADX:T2ThreeReg_mac<
2481 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2482 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []> {
2483 let Inst{15-12} = 0b1111;
2485 def t2SMUSD: T2ThreeReg_mac<
2486 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2487 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []> {
2488 let Inst{15-12} = 0b1111;
2490 def t2SMUSDX:T2ThreeReg_mac<
2491 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2492 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []> {
2493 let Inst{15-12} = 0b1111;
2495 def t2SMLAD : T2ThreeReg_mac<
2496 0, 0b010, 0b0000, (outs rGPR:$Rd),
2497 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2498 "\t$Rd, $Rn, $Rm, $Ra", []>;
2499 def t2SMLADX : T2FourReg_mac<
2500 0, 0b010, 0b0001, (outs rGPR:$Rd),
2501 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2502 "\t$Rd, $Rn, $Rm, $Ra", []>;
2503 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2504 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2505 "\t$Rd, $Rn, $Rm, $Ra", []>;
2506 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2507 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2508 "\t$Rd, $Rn, $Rm, $Ra", []>;
2509 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2510 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2511 "\t$Ra, $Rd, $Rm, $Rn", []>;
2512 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2513 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2514 "\t$Ra, $Rd, $Rm, $Rn", []>;
2515 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2516 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2517 "\t$Ra, $Rd, $Rm, $Rn", []>;
2518 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2519 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2520 "\t$Ra, $Rd, $Rm, $Rn", []>;
2522 //===----------------------------------------------------------------------===//
2523 // Misc. Arithmetic Instructions.
2526 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2527 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2528 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2529 let Inst{31-27} = 0b11111;
2530 let Inst{26-22} = 0b01010;
2531 let Inst{21-20} = op1;
2532 let Inst{15-12} = 0b1111;
2533 let Inst{7-6} = 0b10;
2534 let Inst{5-4} = op2;
2535 let Rn{3-0} = Rm{3-0};
2538 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2539 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2541 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2542 "rbit", "\t$Rd, $Rm",
2543 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2545 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2546 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2548 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2549 "rev16", ".w\t$Rd, $Rm",
2551 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF),
2552 (or (and (shl rGPR:$Rm, (i32 8)), 0xFF00),
2553 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF0000),
2554 (and (shl rGPR:$Rm, (i32 8)), 0xFF000000)))))]>;
2556 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2557 "revsh", ".w\t$Rd, $Rm",
2560 (or (srl (and rGPR:$Rm, 0xFF00), (i32 8)),
2561 (shl rGPR:$Rm, (i32 8))), i16))]>;
2563 def t2PKHBT : T2ThreeReg<
2564 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2565 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2566 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2567 (and (shl rGPR:$Rm, lsl_amt:$sh),
2569 Requires<[HasT2ExtractPack, IsThumb2]> {
2570 let Inst{31-27} = 0b11101;
2571 let Inst{26-25} = 0b01;
2572 let Inst{24-20} = 0b01100;
2573 let Inst{5} = 0; // BT form
2577 let Inst{14-12} = sh{7-5};
2578 let Inst{7-6} = sh{4-3};
2581 // Alternate cases for PKHBT where identities eliminate some nodes.
2582 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2583 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2584 Requires<[HasT2ExtractPack, IsThumb2]>;
2585 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2586 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2587 Requires<[HasT2ExtractPack, IsThumb2]>;
2589 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2590 // will match the pattern below.
2591 def t2PKHTB : T2ThreeReg<
2592 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2593 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2594 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2595 (and (sra rGPR:$Rm, asr_amt:$sh),
2597 Requires<[HasT2ExtractPack, IsThumb2]> {
2598 let Inst{31-27} = 0b11101;
2599 let Inst{26-25} = 0b01;
2600 let Inst{24-20} = 0b01100;
2601 let Inst{5} = 1; // TB form
2605 let Inst{14-12} = sh{7-5};
2606 let Inst{7-6} = sh{4-3};
2609 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2610 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2611 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2612 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2613 Requires<[HasT2ExtractPack, IsThumb2]>;
2614 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2615 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2616 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2617 Requires<[HasT2ExtractPack, IsThumb2]>;
2619 //===----------------------------------------------------------------------===//
2620 // Comparison Instructions...
2622 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2623 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2624 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2626 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_imm:$imm),
2627 (t2CMPri GPR:$lhs, t2_so_imm:$imm)>;
2628 def : T2Pat<(ARMcmpZ GPR:$lhs, rGPR:$rhs),
2629 (t2CMPrr GPR:$lhs, rGPR:$rhs)>;
2630 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_reg:$rhs),
2631 (t2CMPrs GPR:$lhs, t2_so_reg:$rhs)>;
2633 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2634 // Compare-to-zero still works out, just not the relationals
2635 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2636 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2637 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2638 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2639 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2641 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2642 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2644 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2645 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2647 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2648 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2649 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2650 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2651 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2652 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2654 // Conditional moves
2655 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2656 // a two-value operand where a dag node expects two operands. :(
2657 let neverHasSideEffects = 1 in {
2658 def t2MOVCCr : T2TwoReg<
2659 (outs rGPR:$Rd), (ins rGPR:$false, rGPR:$Rm), IIC_iCMOVr,
2660 "mov", ".w\t$Rd, $Rm",
2661 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2662 RegConstraint<"$false = $Rd"> {
2663 let Inst{31-27} = 0b11101;
2664 let Inst{26-25} = 0b01;
2665 let Inst{24-21} = 0b0010;
2666 let Inst{20} = 0; // The S bit.
2667 let Inst{19-16} = 0b1111; // Rn
2668 let Inst{14-12} = 0b000;
2669 let Inst{7-4} = 0b0000;
2672 let isMoveImm = 1 in
2673 def t2MOVCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2674 IIC_iCMOVi, "mov", ".w\t$Rd, $imm",
2675 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2676 RegConstraint<"$false = $Rd"> {
2677 let Inst{31-27} = 0b11110;
2679 let Inst{24-21} = 0b0010;
2680 let Inst{20} = 0; // The S bit.
2681 let Inst{19-16} = 0b1111; // Rn
2685 let isMoveImm = 1 in
2686 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, i32imm:$imm),
2688 "movw", "\t$Rd, $imm", []>,
2689 RegConstraint<"$false = $Rd"> {
2690 let Inst{31-27} = 0b11110;
2692 let Inst{24-21} = 0b0010;
2693 let Inst{20} = 0; // The S bit.
2699 let Inst{11-8} = Rd{3-0};
2700 let Inst{19-16} = imm{15-12};
2701 let Inst{26} = imm{11};
2702 let Inst{14-12} = imm{10-8};
2703 let Inst{7-0} = imm{7-0};
2706 let isMoveImm = 1 in
2707 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2708 (ins rGPR:$false, i32imm:$src, pred:$p),
2709 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2711 let isMoveImm = 1 in
2712 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2713 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2714 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2715 imm:$cc, CCR:$ccr))*/]>,
2716 RegConstraint<"$false = $Rd"> {
2717 let Inst{31-27} = 0b11110;
2719 let Inst{24-21} = 0b0011;
2720 let Inst{20} = 0; // The S bit.
2721 let Inst{19-16} = 0b1111; // Rn
2725 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2726 string opc, string asm, list<dag> pattern>
2727 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2728 let Inst{31-27} = 0b11101;
2729 let Inst{26-25} = 0b01;
2730 let Inst{24-21} = 0b0010;
2731 let Inst{20} = 0; // The S bit.
2732 let Inst{19-16} = 0b1111; // Rn
2733 let Inst{5-4} = opcod; // Shift type.
2735 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2736 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2737 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2738 RegConstraint<"$false = $Rd">;
2739 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2740 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2741 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2742 RegConstraint<"$false = $Rd">;
2743 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2744 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2745 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2746 RegConstraint<"$false = $Rd">;
2747 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2748 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2749 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2750 RegConstraint<"$false = $Rd">;
2751 } // neverHasSideEffects
2753 //===----------------------------------------------------------------------===//
2754 // Atomic operations intrinsics
2757 // memory barriers protect the atomic sequences
2758 let hasSideEffects = 1 in {
2759 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2760 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2761 Requires<[IsThumb, HasDB]> {
2763 let Inst{31-4} = 0xf3bf8f5;
2764 let Inst{3-0} = opt;
2768 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2770 [/* For disassembly only; pattern left blank */]>,
2771 Requires<[IsThumb, HasDB]> {
2773 let Inst{31-4} = 0xf3bf8f4;
2774 let Inst{3-0} = opt;
2777 // ISB has only full system option -- for disassembly only
2778 def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
2779 [/* For disassembly only; pattern left blank */]>,
2780 Requires<[IsThumb2, HasV7]> {
2781 let Inst{31-4} = 0xf3bf8f6;
2782 let Inst{3-0} = 0b1111;
2785 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2786 InstrItinClass itin, string opc, string asm, string cstr,
2787 list<dag> pattern, bits<4> rt2 = 0b1111>
2788 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2789 let Inst{31-27} = 0b11101;
2790 let Inst{26-20} = 0b0001101;
2791 let Inst{11-8} = rt2;
2792 let Inst{7-6} = 0b01;
2793 let Inst{5-4} = opcod;
2794 let Inst{3-0} = 0b1111;
2798 let Inst{19-16} = Rn{3-0};
2799 let Inst{15-12} = Rt{3-0};
2801 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2802 InstrItinClass itin, string opc, string asm, string cstr,
2803 list<dag> pattern, bits<4> rt2 = 0b1111>
2804 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2805 let Inst{31-27} = 0b11101;
2806 let Inst{26-20} = 0b0001100;
2807 let Inst{11-8} = rt2;
2808 let Inst{7-6} = 0b01;
2809 let Inst{5-4} = opcod;
2814 let Inst{11-8} = Rd{3-0};
2815 let Inst{19-16} = Rn{3-0};
2816 let Inst{15-12} = Rt{3-0};
2819 let mayLoad = 1 in {
2820 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2821 Size4Bytes, NoItinerary, "ldrexb", "\t$Rt, [$Rn]",
2823 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2824 Size4Bytes, NoItinerary, "ldrexh", "\t$Rt, [$Rn]",
2826 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2827 Size4Bytes, NoItinerary,
2828 "ldrex", "\t$Rt, [$Rn]", "",
2830 let Inst{31-27} = 0b11101;
2831 let Inst{26-20} = 0b0000101;
2832 let Inst{11-8} = 0b1111;
2833 let Inst{7-0} = 0b00000000; // imm8 = 0
2835 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2), (ins rGPR:$Rn),
2836 AddrModeNone, Size4Bytes, NoItinerary,
2837 "ldrexd", "\t$Rt, $Rt2, [$Rn]", "",
2840 let Inst{11-8} = Rt2{3-0};
2844 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2845 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2846 AddrModeNone, Size4Bytes, NoItinerary,
2847 "strexb", "\t$Rd, $Rt, [$Rn]", "", []>;
2848 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2849 AddrModeNone, Size4Bytes, NoItinerary,
2850 "strexh", "\t$Rd, $Rt, [$Rn]", "", []>;
2851 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2852 AddrModeNone, Size4Bytes, NoItinerary,
2853 "strex", "\t$Rd, $Rt, [$Rn]", "",
2855 let Inst{31-27} = 0b11101;
2856 let Inst{26-20} = 0b0000100;
2857 let Inst{7-0} = 0b00000000; // imm8 = 0
2859 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2860 (ins rGPR:$Rt, rGPR:$Rt2, rGPR:$Rn),
2861 AddrModeNone, Size4Bytes, NoItinerary,
2862 "strexd", "\t$Rd, $Rt, $Rt2, [$Rn]", "", [],
2865 let Inst{11-8} = Rt2{3-0};
2869 // Clear-Exclusive is for disassembly only.
2870 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2871 [/* For disassembly only; pattern left blank */]>,
2872 Requires<[IsARM, HasV7]> {
2873 let Inst{31-20} = 0xf3b;
2874 let Inst{15-14} = 0b10;
2876 let Inst{7-4} = 0b0010;
2879 //===----------------------------------------------------------------------===//
2883 // __aeabi_read_tp preserves the registers r1-r3.
2885 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
2886 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2887 "bl\t__aeabi_read_tp",
2888 [(set R0, ARMthread_pointer)]> {
2889 let Inst{31-27} = 0b11110;
2890 let Inst{15-14} = 0b11;
2895 //===----------------------------------------------------------------------===//
2896 // SJLJ Exception handling intrinsics
2897 // eh_sjlj_setjmp() is an instruction sequence to store the return
2898 // address and save #0 in R0 for the non-longjmp case.
2899 // Since by its nature we may be coming from some other function to get
2900 // here, and we're using the stack frame for the containing function to
2901 // save/restore registers, we can't keep anything live in regs across
2902 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2903 // when we get here from a longjmp(). We force everthing out of registers
2904 // except for our own input by listing the relevant registers in Defs. By
2905 // doing so, we also cause the prologue/epilogue code to actively preserve
2906 // all of the callee-saved resgisters, which is exactly what we want.
2907 // $val is a scratch register for our use.
2909 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2910 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2911 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2912 D31 ], hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2913 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2914 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2915 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2916 Requires<[IsThumb2, HasVFP2]>;
2920 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2921 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2922 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2923 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2924 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2925 Requires<[IsThumb2, NoVFP]>;
2929 //===----------------------------------------------------------------------===//
2930 // Control-Flow Instructions
2933 // FIXME: remove when we have a way to marking a MI with these properties.
2934 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2936 // FIXME: Should pc be an implicit operand like PICADD, etc?
2937 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2938 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2939 def t2LDMIA_RET: T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2940 reglist:$regs, variable_ops),
2942 "ldmia${p}.w\t$Rn!, $regs",
2947 let Inst{31-27} = 0b11101;
2948 let Inst{26-25} = 0b00;
2949 let Inst{24-23} = 0b01; // Increment After
2951 let Inst{21} = 1; // Writeback
2953 let Inst{19-16} = Rn;
2954 let Inst{15-0} = regs;
2957 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2958 let isPredicable = 1 in
2959 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2961 [(br bb:$target)]> {
2962 let Inst{31-27} = 0b11110;
2963 let Inst{15-14} = 0b10;
2967 let Inst{26} = target{19};
2968 let Inst{11} = target{18};
2969 let Inst{13} = target{17};
2970 let Inst{21-16} = target{16-11};
2971 let Inst{10-0} = target{10-0};
2974 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2975 def t2BR_JT : tPseudoInst<(outs),
2976 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
2977 SizeSpecial, IIC_Br,
2978 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
2980 // FIXME: Add a non-pc based case that can be predicated.
2981 def t2TBB_JT : tPseudoInst<(outs),
2982 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2983 SizeSpecial, IIC_Br, []>;
2985 def t2TBH_JT : tPseudoInst<(outs),
2986 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2987 SizeSpecial, IIC_Br, []>;
2989 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
2990 "tbb", "\t[$Rn, $Rm]", []> {
2993 let Inst{27-20} = 0b10001101;
2994 let Inst{19-16} = Rn;
2995 let Inst{15-5} = 0b11110000000;
2996 let Inst{4} = 0; // B form
3000 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3001 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3004 let Inst{27-20} = 0b10001101;
3005 let Inst{19-16} = Rn;
3006 let Inst{15-5} = 0b11110000000;
3007 let Inst{4} = 1; // H form
3010 } // isNotDuplicable, isIndirectBranch
3012 } // isBranch, isTerminator, isBarrier
3014 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3015 // a two-value operand where a dag node expects two operands. :(
3016 let isBranch = 1, isTerminator = 1 in
3017 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3019 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3020 let Inst{31-27} = 0b11110;
3021 let Inst{15-14} = 0b10;
3025 let Inst{26} = target{19};
3026 let Inst{11} = target{18};
3027 let Inst{13} = target{17};
3028 let Inst{21-16} = target{16-11};
3029 let Inst{10-0} = target{10-0};
3034 let Defs = [ITSTATE] in
3035 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3036 AddrModeNone, Size2Bytes, IIC_iALUx,
3037 "it$mask\t$cc", "", []> {
3038 // 16-bit instruction.
3039 let Inst{31-16} = 0x0000;
3040 let Inst{15-8} = 0b10111111;
3044 let Inst{7-4} = cc{3-0};
3045 let Inst{3-0} = mask{3-0};
3048 // Branch and Exchange Jazelle -- for disassembly only
3050 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3051 [/* For disassembly only; pattern left blank */]> {
3052 let Inst{31-27} = 0b11110;
3054 let Inst{25-20} = 0b111100;
3055 let Inst{15-14} = 0b10;
3059 let Inst{19-16} = func{3-0};
3062 // Change Processor State is a system instruction -- for disassembly only.
3063 // The singleton $opt operand contains the following information:
3064 // opt{4-0} = mode from Inst{4-0}
3065 // opt{5} = changemode from Inst{17}
3066 // opt{8-6} = AIF from Inst{8-6}
3067 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
3068 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
3069 [/* For disassembly only; pattern left blank */]> {
3070 let Inst{31-27} = 0b11110;
3072 let Inst{25-20} = 0b111010;
3073 let Inst{15-14} = 0b10;
3079 let Inst{4-0} = opt{4-0};
3082 let Inst{8} = opt{5};
3085 let Inst{5} = opt{6};
3088 let Inst{6} = opt{7};
3091 let Inst{7} = opt{8};
3094 let Inst{10-9} = opt{10-9};
3097 // A6.3.4 Branches and miscellaneous control
3098 // Table A6-14 Change Processor State, and hint instructions
3099 // Helper class for disassembly only.
3100 class T2I_hint<bits<8> op7_0, string opc, string asm>
3101 : T2I<(outs), (ins), NoItinerary, opc, asm,
3102 [/* For disassembly only; pattern left blank */]> {
3103 let Inst{31-20} = 0xf3a;
3104 let Inst{15-14} = 0b10;
3106 let Inst{10-8} = 0b000;
3107 let Inst{7-0} = op7_0;
3110 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3111 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3112 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3113 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3114 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3116 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
3117 [/* For disassembly only; pattern left blank */]> {
3118 let Inst{31-20} = 0xf3a;
3119 let Inst{15-14} = 0b10;
3121 let Inst{10-8} = 0b000;
3122 let Inst{7-4} = 0b1111;
3125 let Inst{3-0} = opt{3-0};
3128 // Secure Monitor Call is a system instruction -- for disassembly only
3129 // Option = Inst{19-16}
3130 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
3131 [/* For disassembly only; pattern left blank */]> {
3132 let Inst{31-27} = 0b11110;
3133 let Inst{26-20} = 0b1111111;
3134 let Inst{15-12} = 0b1000;
3137 let Inst{19-16} = opt{3-0};
3140 class T2SRS<bits<12> op31_20,
3141 dag oops, dag iops, InstrItinClass itin,
3142 string opc, string asm, list<dag> pattern>
3143 : T2I<oops, iops, itin, opc, asm, pattern> {
3144 let Inst{31-20} = op31_20{11-0};
3147 let Inst{4-0} = mode{4-0};
3150 // Store Return State is a system instruction -- for disassembly only
3151 def t2SRSDBW : T2SRS<0b111010000010,
3152 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3153 [/* For disassembly only; pattern left blank */]>;
3154 def t2SRSDB : T2SRS<0b111010000000,
3155 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3156 [/* For disassembly only; pattern left blank */]>;
3157 def t2SRSIAW : T2SRS<0b111010011010,
3158 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3159 [/* For disassembly only; pattern left blank */]>;
3160 def t2SRSIA : T2SRS<0b111010011000,
3161 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3162 [/* For disassembly only; pattern left blank */]>;
3164 // Return From Exception is a system instruction -- for disassembly only
3166 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3167 string opc, string asm, list<dag> pattern>
3168 : T2I<oops, iops, itin, opc, asm, pattern> {
3169 let Inst{31-20} = op31_20{11-0};
3172 let Inst{19-16} = Rn{3-0};
3175 def t2RFEDBW : T2RFE<0b111010000011,
3176 (outs), (ins rGPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3177 [/* For disassembly only; pattern left blank */]>;
3178 def t2RFEDB : T2RFE<0b111010000001,
3179 (outs), (ins rGPR:$Rn), NoItinerary, "rfeab", "\t$Rn",
3180 [/* For disassembly only; pattern left blank */]>;
3181 def t2RFEIAW : T2RFE<0b111010011011,
3182 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3183 [/* For disassembly only; pattern left blank */]>;
3184 def t2RFEIA : T2RFE<0b111010011001,
3185 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3186 [/* For disassembly only; pattern left blank */]>;
3188 //===----------------------------------------------------------------------===//
3189 // Non-Instruction Patterns
3192 // 32-bit immediate using movw + movt.
3193 // This is a single pseudo instruction to make it re-materializable.
3194 // FIXME: Remove this when we can do generalized remat.
3195 let isReMaterializable = 1, isMoveImm = 1 in
3196 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3197 [(set rGPR:$dst, (i32 imm:$src))]>,
3198 Requires<[IsThumb, HasV6T2]>;
3200 // ConstantPool, GlobalAddress, and JumpTable
3201 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3202 Requires<[IsThumb2, DontUseMovt]>;
3203 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3204 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3205 Requires<[IsThumb2, UseMovt]>;
3207 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3208 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3210 // Pseudo instruction that combines ldr from constpool and add pc. This should
3211 // be expanded into two instructions late to allow if-conversion and
3213 let canFoldAsLoad = 1, isReMaterializable = 1 in
3214 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3216 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3218 Requires<[IsThumb2]>;
3220 //===----------------------------------------------------------------------===//
3221 // Move between special register and ARM core register -- for disassembly only
3224 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3225 dag oops, dag iops, InstrItinClass itin,
3226 string opc, string asm, list<dag> pattern>
3227 : T2I<oops, iops, itin, opc, asm, pattern> {
3228 let Inst{31-20} = op31_20{11-0};
3229 let Inst{15-14} = op15_14{1-0};
3230 let Inst{12} = op12{0};
3233 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3234 dag oops, dag iops, InstrItinClass itin,
3235 string opc, string asm, list<dag> pattern>
3236 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3238 let Inst{11-8} = Rd{3-0};
3241 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3242 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3243 [/* For disassembly only; pattern left blank */]>;
3244 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3245 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3246 [/* For disassembly only; pattern left blank */]>;
3248 class T2MSR<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3249 dag oops, dag iops, InstrItinClass itin,
3250 string opc, string asm, list<dag> pattern>
3251 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3254 let Inst{19-16} = Rn{3-0};
3255 let Inst{11-8} = mask{3-0};
3258 def t2MSR : T2MSR<0b111100111000, 0b10, 0,
3259 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3261 [/* For disassembly only; pattern left blank */]>;
3262 def t2MSRsys : T2MSR<0b111100111001, 0b10, 0,
3263 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3265 [/* For disassembly only; pattern left blank */]>;