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 = "getT2AddrModeImm12OpValue";
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 def t2am_imm12_offset : Operand<i32> {
150 string EncoderMethod = "getT2AddrModeImm12OffsetOpValue";
154 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
155 def t2addrmode_imm8s4 : Operand<i32> {
156 let PrintMethod = "printT2AddrModeImm8s4Operand";
157 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
160 def t2am_imm8s4_offset : Operand<i32> {
161 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
164 // t2addrmode_so_reg := reg + (reg << imm2)
165 def t2addrmode_so_reg : Operand<i32>,
166 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
167 let PrintMethod = "printT2AddrModeSoRegOperand";
168 string EncoderMethod = "getT2AddrModeSORegOpValue";
169 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
173 //===----------------------------------------------------------------------===//
174 // Multiclass helpers...
178 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
179 string opc, string asm, list<dag> pattern>
180 : T2I<oops, iops, itin, opc, asm, pattern> {
184 let Inst{11-8} = Rd{3-0};
185 let Inst{26} = imm{11};
186 let Inst{14-12} = imm{10-8};
187 let Inst{7-0} = imm{7-0};
191 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
192 string opc, string asm, list<dag> pattern>
193 : T2sI<oops, iops, itin, opc, asm, pattern> {
198 let Inst{11-8} = Rd{3-0};
199 let Inst{26} = imm{11};
200 let Inst{14-12} = imm{10-8};
201 let Inst{7-0} = imm{7-0};
204 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
205 string opc, string asm, list<dag> pattern>
206 : T2I<oops, iops, itin, opc, asm, pattern> {
210 let Inst{19-16} = Rn{3-0};
211 let Inst{26} = imm{11};
212 let Inst{14-12} = imm{10-8};
213 let Inst{7-0} = imm{7-0};
217 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
218 string opc, string asm, list<dag> pattern>
219 : T2I<oops, iops, itin, opc, asm, pattern> {
223 let Inst{11-8} = Rd{3-0};
224 let Inst{3-0} = ShiftedRm{3-0};
225 let Inst{5-4} = ShiftedRm{6-5};
226 let Inst{14-12} = ShiftedRm{11-9};
227 let Inst{7-6} = ShiftedRm{8-7};
230 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
231 string opc, string asm, list<dag> pattern>
232 : T2I<oops, iops, itin, opc, asm, pattern> {
236 let Inst{11-8} = Rd{3-0};
237 let Inst{3-0} = ShiftedRm{3-0};
238 let Inst{5-4} = ShiftedRm{6-5};
239 let Inst{14-12} = ShiftedRm{11-9};
240 let Inst{7-6} = ShiftedRm{8-7};
243 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
244 string opc, string asm, list<dag> pattern>
245 : T2I<oops, iops, itin, opc, asm, pattern> {
249 let Inst{19-16} = Rn{3-0};
250 let Inst{3-0} = ShiftedRm{3-0};
251 let Inst{5-4} = ShiftedRm{6-5};
252 let Inst{14-12} = ShiftedRm{11-9};
253 let Inst{7-6} = ShiftedRm{8-7};
256 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
257 string opc, string asm, list<dag> pattern>
258 : T2I<oops, iops, itin, opc, asm, pattern> {
262 let Inst{11-8} = Rd{3-0};
263 let Inst{3-0} = Rm{3-0};
266 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
267 string opc, string asm, list<dag> pattern>
268 : T2sI<oops, iops, itin, opc, asm, pattern> {
272 let Inst{11-8} = Rd{3-0};
273 let Inst{3-0} = Rm{3-0};
276 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
277 string opc, string asm, list<dag> pattern>
278 : T2I<oops, iops, itin, opc, asm, pattern> {
282 let Inst{19-16} = Rn{3-0};
283 let Inst{3-0} = Rm{3-0};
287 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
288 string opc, string asm, list<dag> pattern>
289 : T2I<oops, iops, itin, opc, asm, pattern> {
293 let Inst{11-8} = Rd{3-0};
294 let Inst{3-0} = Rm{3-0};
297 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
298 string opc, string asm, list<dag> pattern>
299 : T2sI<oops, iops, itin, opc, asm, pattern> {
304 let Inst{11-8} = Rd{3-0};
305 let Inst{19-16} = Rn{3-0};
306 let Inst{26} = imm{11};
307 let Inst{14-12} = imm{10-8};
308 let Inst{7-0} = imm{7-0};
311 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
312 string opc, string asm, list<dag> pattern>
313 : T2I<oops, iops, itin, opc, asm, pattern> {
318 let Inst{11-8} = Rd{3-0};
319 let Inst{3-0} = Rm{3-0};
320 let Inst{14-12} = imm{4-2};
321 let Inst{7-6} = imm{1-0};
324 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
325 string opc, string asm, list<dag> pattern>
326 : T2sI<oops, iops, itin, opc, asm, pattern> {
331 let Inst{11-8} = Rd{3-0};
332 let Inst{3-0} = Rm{3-0};
333 let Inst{14-12} = imm{4-2};
334 let Inst{7-6} = imm{1-0};
337 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
338 string opc, string asm, list<dag> pattern>
339 : T2I<oops, iops, itin, opc, asm, pattern> {
344 let Inst{11-8} = Rd{3-0};
345 let Inst{19-16} = Rn{3-0};
346 let Inst{3-0} = Rm{3-0};
349 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
350 string opc, string asm, list<dag> pattern>
351 : T2sI<oops, iops, itin, opc, asm, pattern> {
356 let Inst{11-8} = Rd{3-0};
357 let Inst{19-16} = Rn{3-0};
358 let Inst{3-0} = Rm{3-0};
361 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
362 string opc, string asm, list<dag> pattern>
363 : T2I<oops, iops, itin, opc, asm, pattern> {
368 let Inst{11-8} = Rd{3-0};
369 let Inst{19-16} = Rn{3-0};
370 let Inst{3-0} = ShiftedRm{3-0};
371 let Inst{5-4} = ShiftedRm{6-5};
372 let Inst{14-12} = ShiftedRm{11-9};
373 let Inst{7-6} = ShiftedRm{8-7};
376 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
377 string opc, string asm, list<dag> pattern>
378 : T2sI<oops, iops, itin, opc, asm, pattern> {
383 let Inst{11-8} = Rd{3-0};
384 let Inst{19-16} = Rn{3-0};
385 let Inst{3-0} = ShiftedRm{3-0};
386 let Inst{5-4} = ShiftedRm{6-5};
387 let Inst{14-12} = ShiftedRm{11-9};
388 let Inst{7-6} = ShiftedRm{8-7};
391 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
392 string opc, string asm, list<dag> pattern>
393 : T2I<oops, iops, itin, opc, asm, pattern> {
399 let Inst{11-8} = Rd{3-0};
400 let Inst{19-16} = Rn{3-0};
401 let Inst{3-0} = Rm{3-0};
402 let Inst{15-12} = Ra{3-0};
406 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
407 /// unary operation that produces a value. These are predicable and can be
408 /// changed to modify CPSR.
409 multiclass T2I_un_irs<bits<4> opcod, string opc,
410 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
411 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
413 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
415 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
416 let isAsCheapAsAMove = Cheap;
417 let isReMaterializable = ReMat;
418 let Inst{31-27} = 0b11110;
420 let Inst{24-21} = opcod;
421 let Inst{20} = ?; // The S bit.
422 let Inst{19-16} = 0b1111; // Rn
426 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
428 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
429 let Inst{31-27} = 0b11101;
430 let Inst{26-25} = 0b01;
431 let Inst{24-21} = opcod;
432 let Inst{20} = ?; // The S bit.
433 let Inst{19-16} = 0b1111; // Rn
434 let Inst{14-12} = 0b000; // imm3
435 let Inst{7-6} = 0b00; // imm2
436 let Inst{5-4} = 0b00; // type
439 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
440 opc, ".w\t$Rd, $ShiftedRm",
441 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
442 let Inst{31-27} = 0b11101;
443 let Inst{26-25} = 0b01;
444 let Inst{24-21} = opcod;
445 let Inst{20} = ?; // The S bit.
446 let Inst{19-16} = 0b1111; // Rn
450 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
451 /// binary operation that produces a value. These are predicable and can be
452 /// changed to modify CPSR.
453 multiclass T2I_bin_irs<bits<4> opcod, string opc,
454 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
455 PatFrag opnode, bit Commutable = 0, string wide = ""> {
457 def ri : T2sTwoRegImm<
458 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
459 opc, "\t$Rd, $Rn, $imm",
460 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
461 let Inst{31-27} = 0b11110;
463 let Inst{24-21} = opcod;
464 let Inst{20} = ?; // The S bit.
468 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
469 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
470 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
471 let isCommutable = Commutable;
472 let Inst{31-27} = 0b11101;
473 let Inst{26-25} = 0b01;
474 let Inst{24-21} = opcod;
475 let Inst{20} = ?; // The S bit.
476 let Inst{14-12} = 0b000; // imm3
477 let Inst{7-6} = 0b00; // imm2
478 let Inst{5-4} = 0b00; // type
481 def rs : T2sTwoRegShiftedReg<
482 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
483 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
484 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
485 let Inst{31-27} = 0b11101;
486 let Inst{26-25} = 0b01;
487 let Inst{24-21} = opcod;
488 let Inst{20} = ?; // The S bit.
492 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
493 // the ".w" prefix to indicate that they are wide.
494 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
495 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
496 PatFrag opnode, bit Commutable = 0> :
497 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w">;
499 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
500 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
501 /// it is equivalent to the T2I_bin_irs counterpart.
502 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
504 def ri : T2sTwoRegImm<
505 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
506 opc, ".w\t$Rd, $Rn, $imm",
507 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
508 let Inst{31-27} = 0b11110;
510 let Inst{24-21} = opcod;
511 let Inst{20} = ?; // The S bit.
515 def rr : T2sThreeReg<
516 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
517 opc, "\t$Rd, $Rn, $Rm",
518 [/* For disassembly only; pattern left blank */]> {
519 let Inst{31-27} = 0b11101;
520 let Inst{26-25} = 0b01;
521 let Inst{24-21} = opcod;
522 let Inst{20} = ?; // The S bit.
523 let Inst{14-12} = 0b000; // imm3
524 let Inst{7-6} = 0b00; // imm2
525 let Inst{5-4} = 0b00; // type
528 def rs : T2sTwoRegShiftedReg<
529 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
530 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
531 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
532 let Inst{31-27} = 0b11101;
533 let Inst{26-25} = 0b01;
534 let Inst{24-21} = opcod;
535 let Inst{20} = ?; // The S bit.
539 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
540 /// instruction modifies the CPSR register.
541 let Defs = [CPSR] in {
542 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
543 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
544 PatFrag opnode, bit Commutable = 0> {
546 def ri : T2TwoRegImm<
547 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
548 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
549 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
550 let Inst{31-27} = 0b11110;
552 let Inst{24-21} = opcod;
553 let Inst{20} = 1; // The S bit.
558 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
559 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $Rm",
560 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
561 let isCommutable = Commutable;
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.
566 let Inst{14-12} = 0b000; // imm3
567 let Inst{7-6} = 0b00; // imm2
568 let Inst{5-4} = 0b00; // type
571 def rs : T2TwoRegShiftedReg<
572 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
573 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $ShiftedRm",
574 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
575 let Inst{31-27} = 0b11101;
576 let Inst{26-25} = 0b01;
577 let Inst{24-21} = opcod;
578 let Inst{20} = 1; // The S bit.
583 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
584 /// patterns for a binary operation that produces a value.
585 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
586 bit Commutable = 0> {
588 // The register-immediate version is re-materializable. This is useful
589 // in particular for taking the address of a local.
590 let isReMaterializable = 1 in {
591 def ri : T2sTwoRegImm<
592 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
593 opc, ".w\t$Rd, $Rn, $imm",
594 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
595 let Inst{31-27} = 0b11110;
598 let Inst{23-21} = op23_21;
599 let Inst{20} = 0; // The S bit.
604 def ri12 : T2TwoRegImm<
605 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
606 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
607 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
608 let Inst{31-27} = 0b11110;
611 let Inst{23-21} = op23_21;
612 let Inst{20} = 0; // The S bit.
616 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), IIC_iALUr,
617 opc, ".w\t$Rd, $Rn, $Rm",
618 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
619 let isCommutable = Commutable;
620 let Inst{31-27} = 0b11101;
621 let Inst{26-25} = 0b01;
623 let Inst{23-21} = op23_21;
624 let Inst{20} = 0; // The S bit.
625 let Inst{14-12} = 0b000; // imm3
626 let Inst{7-6} = 0b00; // imm2
627 let Inst{5-4} = 0b00; // type
630 def rs : T2sTwoRegShiftedReg<
631 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
632 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
633 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
634 let Inst{31-27} = 0b11101;
635 let Inst{26-25} = 0b01;
637 let Inst{23-21} = op23_21;
638 let Inst{20} = 0; // The S bit.
642 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
643 /// for a binary operation that produces a value and use the carry
644 /// bit. It's not predicable.
645 let Uses = [CPSR] in {
646 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
647 bit Commutable = 0> {
649 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
650 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
651 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
652 Requires<[IsThumb2]> {
653 let Inst{31-27} = 0b11110;
655 let Inst{24-21} = opcod;
656 let Inst{20} = 0; // The S bit.
660 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
661 opc, ".w\t$Rd, $Rn, $Rm",
662 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
663 Requires<[IsThumb2]> {
664 let isCommutable = Commutable;
665 let Inst{31-27} = 0b11101;
666 let Inst{26-25} = 0b01;
667 let Inst{24-21} = opcod;
668 let Inst{20} = 0; // The S bit.
669 let Inst{14-12} = 0b000; // imm3
670 let Inst{7-6} = 0b00; // imm2
671 let Inst{5-4} = 0b00; // type
674 def rs : T2sTwoRegShiftedReg<
675 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
676 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
677 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
678 Requires<[IsThumb2]> {
679 let Inst{31-27} = 0b11101;
680 let Inst{26-25} = 0b01;
681 let Inst{24-21} = opcod;
682 let Inst{20} = 0; // The S bit.
686 // Carry setting variants
687 let Defs = [CPSR] in {
688 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
689 bit Commutable = 0> {
691 def ri : T2sTwoRegImm<
692 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
693 opc, "\t$Rd, $Rn, $imm",
694 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
695 Requires<[IsThumb2]> {
696 let Inst{31-27} = 0b11110;
698 let Inst{24-21} = opcod;
699 let Inst{20} = 1; // The S bit.
703 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
704 opc, ".w\t$Rd, $Rn, $Rm",
705 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
706 Requires<[IsThumb2]> {
707 let isCommutable = Commutable;
708 let Inst{31-27} = 0b11101;
709 let Inst{26-25} = 0b01;
710 let Inst{24-21} = opcod;
711 let Inst{20} = 1; // The S bit.
712 let Inst{14-12} = 0b000; // imm3
713 let Inst{7-6} = 0b00; // imm2
714 let Inst{5-4} = 0b00; // type
717 def rs : T2sTwoRegShiftedReg<
718 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
719 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
720 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
721 Requires<[IsThumb2]> {
722 let Inst{31-27} = 0b11101;
723 let Inst{26-25} = 0b01;
724 let Inst{24-21} = opcod;
725 let Inst{20} = 1; // The S bit.
731 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
732 /// version is not needed since this is only for codegen.
733 let Defs = [CPSR] in {
734 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
736 def ri : T2TwoRegImm<
737 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
738 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
739 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
740 let Inst{31-27} = 0b11110;
742 let Inst{24-21} = opcod;
743 let Inst{20} = 1; // The S bit.
747 def rs : T2TwoRegShiftedReg<
748 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
749 IIC_iALUsi, !strconcat(opc, "s"), "\t$Rd, $Rn, $ShiftedRm",
750 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
751 let Inst{31-27} = 0b11101;
752 let Inst{26-25} = 0b01;
753 let Inst{24-21} = opcod;
754 let Inst{20} = 1; // The S bit.
759 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
760 // rotate operation that produces a value.
761 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
763 def ri : T2sTwoRegShiftImm<
764 (outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$imm), IIC_iMOVsi,
765 opc, ".w\t$Rd, $Rm, $imm",
766 [(set rGPR:$Rd, (opnode rGPR:$Rm, imm1_31:$imm))]> {
767 let Inst{31-27} = 0b11101;
768 let Inst{26-21} = 0b010010;
769 let Inst{19-16} = 0b1111; // Rn
770 let Inst{5-4} = opcod;
773 def rr : T2sThreeReg<
774 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
775 opc, ".w\t$Rd, $Rn, $Rm",
776 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
777 let Inst{31-27} = 0b11111;
778 let Inst{26-23} = 0b0100;
779 let Inst{22-21} = opcod;
780 let Inst{15-12} = 0b1111;
781 let Inst{7-4} = 0b0000;
785 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
786 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
787 /// a explicit result, only implicitly set CPSR.
788 let isCompare = 1, Defs = [CPSR] in {
789 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
790 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
793 def ri : T2OneRegCmpImm<
794 (outs), (ins GPR:$Rn, t2_so_imm:$imm), iii,
795 opc, ".w\t$Rn, $imm",
796 [(opnode GPR:$Rn, t2_so_imm:$imm)]> {
797 let Inst{31-27} = 0b11110;
799 let Inst{24-21} = opcod;
800 let Inst{20} = 1; // The S bit.
802 let Inst{11-8} = 0b1111; // Rd
805 def rr : T2TwoRegCmp<
806 (outs), (ins GPR:$lhs, rGPR:$rhs), iir,
807 opc, ".w\t$lhs, $rhs",
808 [(opnode GPR:$lhs, rGPR:$rhs)]> {
809 let Inst{31-27} = 0b11101;
810 let Inst{26-25} = 0b01;
811 let Inst{24-21} = opcod;
812 let Inst{20} = 1; // The S bit.
813 let Inst{14-12} = 0b000; // imm3
814 let Inst{11-8} = 0b1111; // Rd
815 let Inst{7-6} = 0b00; // imm2
816 let Inst{5-4} = 0b00; // type
819 def rs : T2OneRegCmpShiftedReg<
820 (outs), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
821 opc, ".w\t$Rn, $ShiftedRm",
822 [(opnode GPR:$Rn, t2_so_reg:$ShiftedRm)]> {
823 let Inst{31-27} = 0b11101;
824 let Inst{26-25} = 0b01;
825 let Inst{24-21} = opcod;
826 let Inst{20} = 1; // The S bit.
827 let Inst{11-8} = 0b1111; // Rd
832 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
833 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
834 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
835 def i12 : T2Ii12<(outs GPR:$Rt), (ins t2addrmode_imm12:$addr), iii,
836 opc, ".w\t$Rt, $addr",
837 [(set GPR:$Rt, (opnode t2addrmode_imm12:$addr))]> {
838 let Inst{31-27} = 0b11111;
839 let Inst{26-25} = 0b00;
840 let Inst{24} = signed;
842 let Inst{22-21} = opcod;
843 let Inst{20} = 1; // load
846 let Inst{15-12} = Rt{3-0};
849 let Inst{19-16} = addr{15-12}; // Rn
850 let Inst{11-0} = addr{11-0}; // imm
852 def i8 : T2Ii8 <(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), iii,
854 [(set GPR:$Rt, (opnode t2addrmode_imm8:$addr))]> {
855 let Inst{31-27} = 0b11111;
856 let Inst{26-25} = 0b00;
857 let Inst{24} = signed;
859 let Inst{22-21} = opcod;
860 let Inst{20} = 1; // load
862 // Offset: index==TRUE, wback==FALSE
863 let Inst{10} = 1; // The P bit.
864 let Inst{8} = 0; // The W bit.
867 let Inst{15-12} = Rt{3-0};
870 let Inst{19-16} = addr{12-9}; // Rn
871 let Inst{9} = addr{8}; // U
872 let Inst{7-0} = addr{7-0}; // imm
874 def s : T2Iso <(outs GPR:$Rt), (ins t2addrmode_so_reg:$addr), iis,
875 opc, ".w\t$Rt, $addr",
876 [(set GPR:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
877 let Inst{31-27} = 0b11111;
878 let Inst{26-25} = 0b00;
879 let Inst{24} = signed;
881 let Inst{22-21} = opcod;
882 let Inst{20} = 1; // load
883 let Inst{11-6} = 0b000000;
886 let Inst{15-12} = Rt{3-0};
889 let Inst{19-16} = addr{9-6}; // Rn
890 let Inst{3-0} = addr{5-2}; // Rm
891 let Inst{5-4} = addr{1-0}; // imm
894 // FIXME: Is the pci variant actually needed?
895 def pci : T2Ipc <(outs GPR:$Rt), (ins i32imm:$addr), iii,
896 opc, ".w\t$Rt, $addr",
897 [(set GPR:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
898 let isReMaterializable = 1;
899 let Inst{31-27} = 0b11111;
900 let Inst{26-25} = 0b00;
901 let Inst{24} = signed;
902 let Inst{23} = ?; // add = (U == '1')
903 let Inst{22-21} = opcod;
904 let Inst{20} = 1; // load
905 let Inst{19-16} = 0b1111; // Rn
909 let Inst{15-12} = Rt{3-0};
910 let Inst{11-0} = addr{11-0};
914 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
915 multiclass T2I_st<bits<2> opcod, string opc,
916 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
917 def i12 : T2Ii12<(outs), (ins GPR:$Rt, t2addrmode_imm12:$addr), iii,
918 opc, ".w\t$Rt, $addr",
919 [(opnode GPR:$Rt, t2addrmode_imm12:$addr)]> {
920 let Inst{31-27} = 0b11111;
921 let Inst{26-23} = 0b0001;
922 let Inst{22-21} = opcod;
923 let Inst{20} = 0; // !load
926 let Inst{15-12} = Rt{3-0};
929 let Inst{19-16} = addr{15-12}; // Rn
930 let Inst{11-0} = addr{11-0}; // imm
932 def i8 : T2Ii8 <(outs), (ins GPR:$Rt, t2addrmode_imm8:$addr), iii,
934 [(opnode GPR:$Rt, t2addrmode_imm8:$addr)]> {
935 let Inst{31-27} = 0b11111;
936 let Inst{26-23} = 0b0000;
937 let Inst{22-21} = opcod;
938 let Inst{20} = 0; // !load
940 // Offset: index==TRUE, wback==FALSE
941 let Inst{10} = 1; // The P bit.
942 let Inst{8} = 0; // The W bit.
945 let Inst{15-12} = Rt{3-0};
948 let Inst{19-16} = addr{12-9}; // Rn
949 let Inst{9} = addr{8}; // U
950 let Inst{7-0} = addr{7-0}; // imm
952 def s : T2Iso <(outs), (ins GPR:$Rt, t2addrmode_so_reg:$addr), iis,
953 opc, ".w\t$Rt, $addr",
954 [(opnode GPR:$Rt, t2addrmode_so_reg:$addr)]> {
955 let Inst{31-27} = 0b11111;
956 let Inst{26-23} = 0b0000;
957 let Inst{22-21} = opcod;
958 let Inst{20} = 0; // !load
959 let Inst{11-6} = 0b000000;
962 let Inst{15-12} = Rt{3-0};
965 let Inst{19-16} = addr{9-6}; // Rn
966 let Inst{3-0} = addr{5-2}; // Rm
967 let Inst{5-4} = addr{1-0}; // imm
971 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
972 /// register and one whose operand is a register rotated by 8/16/24.
973 multiclass T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> {
974 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
976 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
977 let Inst{31-27} = 0b11111;
978 let Inst{26-23} = 0b0100;
979 let Inst{22-20} = opcod;
980 let Inst{19-16} = 0b1111; // Rn
981 let Inst{15-12} = 0b1111;
983 let Inst{5-4} = 0b00; // rotate
985 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
986 opc, ".w\t$Rd, $Rm, ror $rot",
987 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]> {
988 let Inst{31-27} = 0b11111;
989 let Inst{26-23} = 0b0100;
990 let Inst{22-20} = opcod;
991 let Inst{19-16} = 0b1111; // Rn
992 let Inst{15-12} = 0b1111;
996 let Inst{5-4} = rot{1-0}; // rotate
1000 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
1001 multiclass T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
1002 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1004 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>,
1005 Requires<[HasT2ExtractPack, IsThumb2]> {
1006 let Inst{31-27} = 0b11111;
1007 let Inst{26-23} = 0b0100;
1008 let Inst{22-20} = opcod;
1009 let Inst{19-16} = 0b1111; // Rn
1010 let Inst{15-12} = 0b1111;
1012 let Inst{5-4} = 0b00; // rotate
1014 def r_rot : T2TwoReg<(outs rGPR:$dst), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1015 opc, "\t$dst, $Rm, ror $rot",
1016 [(set rGPR:$dst, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1017 Requires<[HasT2ExtractPack, IsThumb2]> {
1018 let Inst{31-27} = 0b11111;
1019 let Inst{26-23} = 0b0100;
1020 let Inst{22-20} = opcod;
1021 let Inst{19-16} = 0b1111; // Rn
1022 let Inst{15-12} = 0b1111;
1026 let Inst{5-4} = rot{1-0}; // rotate
1030 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1032 multiclass T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> {
1033 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1034 opc, "\t$Rd, $Rm", []> {
1035 let Inst{31-27} = 0b11111;
1036 let Inst{26-23} = 0b0100;
1037 let Inst{22-20} = opcod;
1038 let Inst{19-16} = 0b1111; // Rn
1039 let Inst{15-12} = 0b1111;
1041 let Inst{5-4} = 0b00; // rotate
1043 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1044 opc, "\t$Rd, $Rm, ror $rot", []> {
1045 let Inst{31-27} = 0b11111;
1046 let Inst{26-23} = 0b0100;
1047 let Inst{22-20} = opcod;
1048 let Inst{19-16} = 0b1111; // Rn
1049 let Inst{15-12} = 0b1111;
1053 let Inst{5-4} = rot{1-0}; // rotate
1057 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1058 /// register and one whose operand is a register rotated by 8/16/24.
1059 multiclass T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> {
1060 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1061 opc, "\t$Rd, $Rn, $Rm",
1062 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
1063 Requires<[HasT2ExtractPack, IsThumb2]> {
1064 let Inst{31-27} = 0b11111;
1065 let Inst{26-23} = 0b0100;
1066 let Inst{22-20} = opcod;
1067 let Inst{15-12} = 0b1111;
1069 let Inst{5-4} = 0b00; // rotate
1071 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1072 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot",
1073 [(set rGPR:$Rd, (opnode rGPR:$Rn,
1074 (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1075 Requires<[HasT2ExtractPack, IsThumb2]> {
1076 let Inst{31-27} = 0b11111;
1077 let Inst{26-23} = 0b0100;
1078 let Inst{22-20} = opcod;
1079 let Inst{15-12} = 0b1111;
1083 let Inst{5-4} = rot{1-0}; // rotate
1087 // DO variant - disassembly only, no pattern
1089 multiclass T2I_exta_rrot_DO<bits<3> opcod, string opc> {
1090 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1091 opc, "\t$Rd, $Rn, $Rm", []> {
1092 let Inst{31-27} = 0b11111;
1093 let Inst{26-23} = 0b0100;
1094 let Inst{22-20} = opcod;
1095 let Inst{15-12} = 0b1111;
1097 let Inst{5-4} = 0b00; // rotate
1099 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1100 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot", []> {
1101 let Inst{31-27} = 0b11111;
1102 let Inst{26-23} = 0b0100;
1103 let Inst{22-20} = opcod;
1104 let Inst{15-12} = 0b1111;
1108 let Inst{5-4} = rot{1-0}; // rotate
1112 //===----------------------------------------------------------------------===//
1114 //===----------------------------------------------------------------------===//
1116 //===----------------------------------------------------------------------===//
1117 // Miscellaneous Instructions.
1120 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1121 string asm, list<dag> pattern>
1122 : T2XI<oops, iops, itin, asm, pattern> {
1126 let Inst{11-8} = Rd{3-0};
1127 let Inst{26} = label{11};
1128 let Inst{14-12} = label{10-8};
1129 let Inst{7-0} = label{7-0};
1132 // LEApcrel - Load a pc-relative address into a register without offending the
1134 let neverHasSideEffects = 1 in {
1135 let isReMaterializable = 1 in
1136 def t2LEApcrel : T2PCOneRegImm<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p), IIC_iALUi,
1137 "adr${p}.w\t$Rd, #$label", []> {
1138 let Inst{31-27} = 0b11110;
1139 let Inst{25-24} = 0b10;
1140 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1143 let Inst{19-16} = 0b1111; // Rn
1148 } // neverHasSideEffects
1149 def t2LEApcrelJT : T2PCOneRegImm<(outs rGPR:$Rd),
1150 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
1151 "adr${p}.w\t$Rd, #${label}_${id}", []> {
1152 let Inst{31-27} = 0b11110;
1153 let Inst{25-24} = 0b10;
1154 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1157 let Inst{19-16} = 0b1111; // Rn
1161 // ADD r, sp, {so_imm|i12}
1162 def t2ADDrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1163 IIC_iALUi, "add", ".w\t$Rd, $sp, $imm", []> {
1164 let Inst{31-27} = 0b11110;
1166 let Inst{24-21} = 0b1000;
1167 let Inst{20} = ?; // The S bit.
1168 let Inst{19-16} = 0b1101; // Rn = sp
1171 def t2ADDrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1172 IIC_iALUi, "addw", "\t$Rd, $sp, $imm", []> {
1173 let Inst{31-27} = 0b11110;
1175 let Inst{24-21} = 0b0000;
1176 let Inst{20} = 0; // The S bit.
1177 let Inst{19-16} = 0b1101; // Rn = sp
1181 // ADD r, sp, so_reg
1182 def t2ADDrSPs : T2sTwoRegShiftedReg<
1183 (outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$ShiftedRm),
1184 IIC_iALUsi, "add", ".w\t$Rd, $sp, $ShiftedRm", []> {
1185 let Inst{31-27} = 0b11101;
1186 let Inst{26-25} = 0b01;
1187 let Inst{24-21} = 0b1000;
1188 let Inst{20} = ?; // The S bit.
1189 let Inst{19-16} = 0b1101; // Rn = sp
1193 // SUB r, sp, {so_imm|i12}
1194 def t2SUBrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1195 IIC_iALUi, "sub", ".w\t$Rd, $sp, $imm", []> {
1196 let Inst{31-27} = 0b11110;
1198 let Inst{24-21} = 0b1101;
1199 let Inst{20} = ?; // The S bit.
1200 let Inst{19-16} = 0b1101; // Rn = sp
1203 def t2SUBrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1204 IIC_iALUi, "subw", "\t$Rd, $sp, $imm", []> {
1205 let Inst{31-27} = 0b11110;
1207 let Inst{24-21} = 0b0101;
1208 let Inst{20} = 0; // The S bit.
1209 let Inst{19-16} = 0b1101; // Rn = sp
1213 // SUB r, sp, so_reg
1214 def t2SUBrSPs : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$imm),
1216 "sub", "\t$Rd, $sp, $imm", []> {
1217 let Inst{31-27} = 0b11101;
1218 let Inst{26-25} = 0b01;
1219 let Inst{24-21} = 0b1101;
1220 let Inst{20} = ?; // The S bit.
1221 let Inst{19-16} = 0b1101; // Rn = sp
1225 // Signed and unsigned division on v7-M
1226 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1227 "sdiv", "\t$Rd, $Rn, $Rm",
1228 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
1229 Requires<[HasDivide, IsThumb2]> {
1230 let Inst{31-27} = 0b11111;
1231 let Inst{26-21} = 0b011100;
1233 let Inst{15-12} = 0b1111;
1234 let Inst{7-4} = 0b1111;
1237 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1238 "udiv", "\t$Rd, $Rn, $Rm",
1239 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
1240 Requires<[HasDivide, IsThumb2]> {
1241 let Inst{31-27} = 0b11111;
1242 let Inst{26-21} = 0b011101;
1244 let Inst{15-12} = 0b1111;
1245 let Inst{7-4} = 0b1111;
1248 //===----------------------------------------------------------------------===//
1249 // Load / store Instructions.
1253 let canFoldAsLoad = 1, isReMaterializable = 1 in
1254 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
1255 UnOpFrag<(load node:$Src)>>;
1257 // Loads with zero extension
1258 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1259 UnOpFrag<(zextloadi16 node:$Src)>>;
1260 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1261 UnOpFrag<(zextloadi8 node:$Src)>>;
1263 // Loads with sign extension
1264 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1265 UnOpFrag<(sextloadi16 node:$Src)>>;
1266 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1267 UnOpFrag<(sextloadi8 node:$Src)>>;
1269 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1,
1270 isCodeGenOnly = 1 in { // $dst doesn't exist in asmstring?
1272 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
1273 (ins t2addrmode_imm8s4:$addr),
1274 IIC_iLoad_d_i, "ldrd", "\t$dst1, $addr", []>;
1275 def t2LDRDpci : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
1276 (ins i32imm:$addr), IIC_iLoad_d_i,
1277 "ldrd", "\t$dst1, $addr", []> {
1278 let Inst{19-16} = 0b1111; // Rn
1280 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1282 // zextload i1 -> zextload i8
1283 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1284 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1285 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
1286 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1287 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1288 (t2LDRBs t2addrmode_so_reg:$addr)>;
1289 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1290 (t2LDRBpci tconstpool:$addr)>;
1292 // extload -> zextload
1293 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1295 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1296 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1297 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
1298 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1299 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1300 (t2LDRBs t2addrmode_so_reg:$addr)>;
1301 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1302 (t2LDRBpci tconstpool:$addr)>;
1304 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1305 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1306 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
1307 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1308 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1309 (t2LDRBs t2addrmode_so_reg:$addr)>;
1310 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1311 (t2LDRBpci tconstpool:$addr)>;
1313 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1314 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1315 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
1316 (t2LDRHi8 t2addrmode_imm8:$addr)>;
1317 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1318 (t2LDRHs t2addrmode_so_reg:$addr)>;
1319 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1320 (t2LDRHpci tconstpool:$addr)>;
1322 // FIXME: The destination register of the loads and stores can't be PC, but
1323 // can be SP. We need another regclass (similar to rGPR) to represent
1324 // that. Not a pressing issue since these are selected manually,
1329 class T2Iidxld<bit signed, bits<2> opcod, bit pre,
1331 AddrMode am, IndexMode im, InstrItinClass itin,
1332 string opc, string asm, string cstr, list<dag> pattern>
1333 : T2Iidxldst<signed, opcod, 1, pre, oops,
1334 iops, am,im,itin, opc, asm, cstr, pattern>;
1335 class T2Iidxst<bit signed, bits<2> opcod, bit pre,
1337 AddrMode am, IndexMode im, InstrItinClass itin,
1338 string opc, string asm, string cstr, list<dag> pattern>
1339 : T2Iidxldst<signed, opcod, 0, pre, oops,
1340 iops, am,im,itin, opc, asm, cstr, pattern>;
1342 let mayLoad = 1, neverHasSideEffects = 1 in {
1343 def t2LDR_PRE : T2Iidxld<0, 0b10, 1, (outs GPR:$Rt, GPR:$Rn),
1344 (ins t2addrmode_imm8:$addr),
1345 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1346 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1349 def t2LDR_POST : T2Iidxld<0, 0b10, 0, (outs GPR:$Rt, GPR:$Rn),
1350 (ins GPR:$base, t2am_imm8_offset:$offset),
1351 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1352 "ldr", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1355 def t2LDRB_PRE : T2Iidxld<0, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1356 (ins t2addrmode_imm8:$addr),
1357 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1358 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1360 def t2LDRB_POST : T2Iidxld<0, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1361 (ins GPR:$base, t2am_imm8_offset:$offset),
1362 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1363 "ldrb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1366 def t2LDRH_PRE : T2Iidxld<0, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1367 (ins t2addrmode_imm8:$addr),
1368 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1369 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1371 def t2LDRH_POST : T2Iidxld<0, 0b01, 0, (outs GPR:$Rt, GPR:$Rn),
1372 (ins GPR:$base, t2am_imm8_offset:$offset),
1373 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1374 "ldrh", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1377 def t2LDRSB_PRE : T2Iidxld<1, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1378 (ins t2addrmode_imm8:$addr),
1379 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1380 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1382 def t2LDRSB_POST : T2Iidxld<1, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1383 (ins GPR:$base, t2am_imm8_offset:$offset),
1384 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1385 "ldrsb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1388 def t2LDRSH_PRE : T2Iidxld<1, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1389 (ins t2addrmode_imm8:$addr),
1390 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1391 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1393 def t2LDRSH_POST : T2Iidxld<1, 0b01, 0, (outs GPR:$dst, GPR:$Rn),
1394 (ins GPR:$base, t2am_imm8_offset:$offset),
1395 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1396 "ldrsh", "\t$dst, [$Rn], $offset", "$base = $Rn",
1398 } // mayLoad = 1, neverHasSideEffects = 1
1400 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1401 // for disassembly only.
1402 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1403 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1404 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1405 "\t$Rt, $addr", []> {
1406 let Inst{31-27} = 0b11111;
1407 let Inst{26-25} = 0b00;
1408 let Inst{24} = signed;
1410 let Inst{22-21} = type;
1411 let Inst{20} = 1; // load
1413 let Inst{10-8} = 0b110; // PUW.
1417 let Inst{15-12} = Rt{3-0};
1418 let Inst{19-16} = addr{12-9};
1419 let Inst{7-0} = addr{7-0};
1422 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1423 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1424 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1425 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1426 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1429 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1430 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1431 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1432 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1433 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1434 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1437 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1,
1438 isCodeGenOnly = 1 in // $src2 doesn't exist in asm string
1439 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1440 (ins GPR:$src1, GPR:$src2, t2addrmode_imm8s4:$addr),
1441 IIC_iStore_d_r, "strd", "\t$src1, $addr", []>;
1444 def t2STR_PRE : T2Iidxst<0, 0b10, 1, (outs GPR:$base_wb),
1445 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1446 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1447 "str", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1449 (pre_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1451 def t2STR_POST : T2Iidxst<0, 0b10, 0, (outs GPR:$base_wb),
1452 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1453 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1454 "str", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1456 (post_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1458 def t2STRH_PRE : T2Iidxst<0, 0b01, 1, (outs GPR:$base_wb),
1459 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1460 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1461 "strh", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1463 (pre_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1465 def t2STRH_POST : T2Iidxst<0, 0b01, 0, (outs GPR:$base_wb),
1466 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1467 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1468 "strh", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1470 (post_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1472 def t2STRB_PRE : T2Iidxst<0, 0b00, 1, (outs GPR:$base_wb),
1473 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1474 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1475 "strb", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1477 (pre_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1479 def t2STRB_POST : T2Iidxst<0, 0b00, 0, (outs GPR:$base_wb),
1480 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1481 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1482 "strb", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1484 (post_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1486 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1488 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1489 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1490 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1491 "\t$Rt, $addr", []> {
1492 let Inst{31-27} = 0b11111;
1493 let Inst{26-25} = 0b00;
1494 let Inst{24} = 0; // not signed
1496 let Inst{22-21} = type;
1497 let Inst{20} = 0; // store
1499 let Inst{10-8} = 0b110; // PUW
1503 let Inst{15-12} = Rt{3-0};
1504 let Inst{19-16} = addr{12-9};
1505 let Inst{7-0} = addr{7-0};
1508 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1509 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1510 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1512 // ldrd / strd pre / post variants
1513 // For disassembly only.
1515 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1516 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1517 "ldrd", "\t$dst1, $dst2, [$base, $imm]!", []>;
1519 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1520 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1521 "ldrd", "\t$dst1, $dst2, [$base], $imm", []>;
1523 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1524 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1525 IIC_iStore_d_ru, "strd", "\t$src1, $src2, [$base, $imm]!", []>;
1527 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1528 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1529 IIC_iStore_d_ru, "strd", "\t$src1, $src2, [$base], $imm", []>;
1531 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1532 // data/instruction access. These are for disassembly only.
1533 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1534 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1535 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1537 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1539 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1540 let Inst{31-25} = 0b1111100;
1541 let Inst{24} = instr;
1542 let Inst{23} = 1; // U = 1
1544 let Inst{21} = write;
1546 let Inst{15-12} = 0b1111;
1549 let Inst{19-16} = addr{15-12}; // Rn
1550 let Inst{11-0} = addr{11-0}; // imm12
1553 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1555 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1556 let Inst{31-25} = 0b1111100;
1557 let Inst{24} = instr;
1558 let Inst{23} = 0; // U = 0
1560 let Inst{21} = write;
1562 let Inst{15-12} = 0b1111;
1563 let Inst{11-8} = 0b1100;
1566 let Inst{19-16} = addr{12-9}; // Rn
1567 let Inst{7-0} = addr{7-0}; // imm8
1570 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1572 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1573 let Inst{31-25} = 0b1111100;
1574 let Inst{24} = instr;
1575 let Inst{23} = 0; // add = TRUE for T1
1577 let Inst{21} = write;
1579 let Inst{15-12} = 0b1111;
1580 let Inst{11-6} = 0000000;
1583 let Inst{19-16} = addr{9-6}; // Rn
1584 let Inst{3-0} = addr{5-2}; // Rm
1585 let Inst{5-4} = addr{1-0}; // imm2
1588 let isCodeGenOnly = 1 in
1589 def pci : T2Ipc<(outs), (ins t2am_imm12_offset:$addr), IIC_Preload, opc,
1592 let Inst{31-25} = 0b1111100;
1593 let Inst{24} = write;
1594 let Inst{23} = ?; // add = (U == 1)
1596 let Inst{21} = instr;
1598 let Inst{19-16} = 0b1111; // Rn = 0b1111
1599 let Inst{15-12} = 0b1111;
1602 let Inst{23} = addr{12};
1603 let Inst{11-0} = addr{11-0};
1607 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1608 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1609 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1611 //===----------------------------------------------------------------------===//
1612 // Load / store multiple Instructions.
1615 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1616 InstrItinClass itin_upd, bit L_bit> {
1618 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1619 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1623 let Inst{31-27} = 0b11101;
1624 let Inst{26-25} = 0b00;
1625 let Inst{24-23} = 0b01; // Increment After
1627 let Inst{21} = 0; // No writeback
1628 let Inst{20} = L_bit;
1629 let Inst{19-16} = Rn;
1630 let Inst{15-0} = regs;
1633 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1634 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1638 let Inst{31-27} = 0b11101;
1639 let Inst{26-25} = 0b00;
1640 let Inst{24-23} = 0b01; // Increment After
1642 let Inst{21} = 1; // Writeback
1643 let Inst{20} = L_bit;
1644 let Inst{19-16} = Rn;
1645 let Inst{15-0} = regs;
1648 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1649 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1653 let Inst{31-27} = 0b11101;
1654 let Inst{26-25} = 0b00;
1655 let Inst{24-23} = 0b10; // Decrement Before
1657 let Inst{21} = 0; // No writeback
1658 let Inst{20} = L_bit;
1659 let Inst{19-16} = Rn;
1660 let Inst{15-0} = regs;
1663 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1664 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1668 let Inst{31-27} = 0b11101;
1669 let Inst{26-25} = 0b00;
1670 let Inst{24-23} = 0b10; // Decrement Before
1672 let Inst{21} = 1; // Writeback
1673 let Inst{20} = L_bit;
1674 let Inst{19-16} = Rn;
1675 let Inst{15-0} = regs;
1679 let neverHasSideEffects = 1 in {
1681 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1682 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1684 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1685 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1687 } // neverHasSideEffects
1690 //===----------------------------------------------------------------------===//
1691 // Move Instructions.
1694 let neverHasSideEffects = 1 in
1695 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1696 "mov", ".w\t$Rd, $Rm", []> {
1697 let Inst{31-27} = 0b11101;
1698 let Inst{26-25} = 0b01;
1699 let Inst{24-21} = 0b0010;
1700 let Inst{20} = ?; // The S bit.
1701 let Inst{19-16} = 0b1111; // Rn
1702 let Inst{14-12} = 0b000;
1703 let Inst{7-4} = 0b0000;
1706 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1707 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1708 AddedComplexity = 1 in
1709 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1710 "mov", ".w\t$Rd, $imm",
1711 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1712 let Inst{31-27} = 0b11110;
1714 let Inst{24-21} = 0b0010;
1715 let Inst{20} = ?; // The S bit.
1716 let Inst{19-16} = 0b1111; // Rn
1720 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1721 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins i32imm:$imm), IIC_iMOVi,
1722 "movw", "\t$Rd, $imm",
1723 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1724 let Inst{31-27} = 0b11110;
1726 let Inst{24-21} = 0b0010;
1727 let Inst{20} = 0; // The S bit.
1733 let Inst{11-8} = Rd{3-0};
1734 let Inst{19-16} = imm{15-12};
1735 let Inst{26} = imm{11};
1736 let Inst{14-12} = imm{10-8};
1737 let Inst{7-0} = imm{7-0};
1740 let Constraints = "$src = $Rd" in
1741 def t2MOVTi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1742 "movt", "\t$Rd, $imm",
1744 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1745 let Inst{31-27} = 0b11110;
1747 let Inst{24-21} = 0b0110;
1748 let Inst{20} = 0; // The S bit.
1754 let Inst{11-8} = Rd{3-0};
1755 let Inst{19-16} = imm{15-12};
1756 let Inst{26} = imm{11};
1757 let Inst{14-12} = imm{10-8};
1758 let Inst{7-0} = imm{7-0};
1761 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1763 //===----------------------------------------------------------------------===//
1764 // Extend Instructions.
1769 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1770 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1771 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1772 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1773 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1775 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1776 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1777 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1778 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1779 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1781 // TODO: SXT(A){B|H}16 - done for disassembly only
1785 let AddedComplexity = 16 in {
1786 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1787 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1788 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1789 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1790 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1791 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1793 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1794 // The transformation should probably be done as a combiner action
1795 // instead so we can include a check for masking back in the upper
1796 // eight bits of the source into the lower eight bits of the result.
1797 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1798 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1799 // Requires<[HasT2ExtractPack, IsThumb2]>;
1800 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1801 (t2UXTB16r_rot rGPR:$Src, 8)>,
1802 Requires<[HasT2ExtractPack, IsThumb2]>;
1804 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1805 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1806 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1807 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1808 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1811 //===----------------------------------------------------------------------===//
1812 // Arithmetic Instructions.
1815 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1816 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1817 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1818 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1820 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1821 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1822 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1823 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1824 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1825 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1826 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1828 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1829 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1830 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1831 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1832 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1833 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1834 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1835 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1838 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1839 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1840 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1841 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1843 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1844 // The assume-no-carry-in form uses the negation of the input since add/sub
1845 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1846 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1848 // The AddedComplexity preferences the first variant over the others since
1849 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1850 let AddedComplexity = 1 in
1851 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1852 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1853 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1854 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1855 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1856 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1857 let AddedComplexity = 1 in
1858 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1859 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1860 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1861 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1862 // The with-carry-in form matches bitwise not instead of the negation.
1863 // Effectively, the inverse interpretation of the carry flag already accounts
1864 // for part of the negation.
1865 let AddedComplexity = 1 in
1866 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1867 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1868 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1869 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1871 // Select Bytes -- for disassembly only
1873 def t2SEL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, "sel",
1874 "\t$dst, $a, $b", []> {
1875 let Inst{31-27} = 0b11111;
1876 let Inst{26-24} = 0b010;
1878 let Inst{22-20} = 0b010;
1879 let Inst{15-12} = 0b1111;
1881 let Inst{6-4} = 0b000;
1884 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1885 // And Miscellaneous operations -- for disassembly only
1886 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1887 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1888 : T2I<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), NoItinerary, opc,
1889 "\t$Rd, $Rn, $Rm", pat> {
1890 let Inst{31-27} = 0b11111;
1891 let Inst{26-23} = 0b0101;
1892 let Inst{22-20} = op22_20;
1893 let Inst{15-12} = 0b1111;
1894 let Inst{7-4} = op7_4;
1900 let Inst{11-8} = Rd{3-0};
1901 let Inst{19-16} = Rn{3-0};
1902 let Inst{3-0} = Rm{3-0};
1905 // Saturating add/subtract -- for disassembly only
1907 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1908 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))]>;
1909 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1910 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1911 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1912 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1913 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1914 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1915 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1916 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))]>;
1917 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1918 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1919 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1920 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1921 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1922 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1923 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1924 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1926 // Signed/Unsigned add/subtract -- for disassembly only
1928 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1929 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1930 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1931 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1932 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1933 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1934 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1935 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1936 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1937 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1938 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1939 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1941 // Signed/Unsigned halving add/subtract -- for disassembly only
1943 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1944 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1945 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1946 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1947 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1948 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1949 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1950 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1951 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1952 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1953 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1954 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1956 // Helper class for disassembly only
1957 // A6.3.16 & A6.3.17
1958 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1959 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1960 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1961 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1962 let Inst{31-27} = 0b11111;
1963 let Inst{26-24} = 0b011;
1964 let Inst{23} = long;
1965 let Inst{22-20} = op22_20;
1966 let Inst{7-4} = op7_4;
1969 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1970 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1971 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1972 let Inst{31-27} = 0b11111;
1973 let Inst{26-24} = 0b011;
1974 let Inst{23} = long;
1975 let Inst{22-20} = op22_20;
1976 let Inst{7-4} = op7_4;
1979 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1981 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1982 (ins rGPR:$Rn, rGPR:$Rm),
1983 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []> {
1984 let Inst{15-12} = 0b1111;
1986 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1987 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1988 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>;
1990 // Signed/Unsigned saturate -- for disassembly only
1992 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1993 string opc, string asm, list<dag> pattern>
1994 : T2I<oops, iops, itin, opc, asm, pattern> {
2000 let Inst{11-8} = Rd{3-0};
2001 let Inst{19-16} = Rn{3-0};
2002 let Inst{4-0} = sat_imm{4-0};
2003 let Inst{21} = sh{6};
2004 let Inst{14-12} = sh{4-2};
2005 let Inst{7-6} = sh{1-0};
2008 def t2SSAT: T2I<(outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
2009 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
2010 [/* For disassembly only; pattern left blank */]> {
2011 let Inst{31-27} = 0b11110;
2012 let Inst{25-22} = 0b1100;
2017 def t2SSAT16: T2I<(outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
2018 "ssat16", "\t$Rd, $sat_imm, $Rn",
2019 [/* For disassembly only; pattern left blank */]> {
2020 let Inst{31-27} = 0b11110;
2021 let Inst{25-22} = 0b1100;
2024 let Inst{21} = 1; // sh = '1'
2025 let Inst{14-12} = 0b000; // imm3 = '000'
2026 let Inst{7-6} = 0b00; // imm2 = '00'
2029 def t2USAT: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a, shift_imm:$sh),
2030 NoItinerary, "usat", "\t$dst, $bit_pos, $a$sh",
2031 [/* For disassembly only; pattern left blank */]> {
2032 let Inst{31-27} = 0b11110;
2033 let Inst{25-22} = 0b1110;
2038 def t2USAT16: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a), NoItinerary,
2039 "usat16", "\t$dst, $bit_pos, $a",
2040 [/* For disassembly only; pattern left blank */]> {
2041 let Inst{31-27} = 0b11110;
2042 let Inst{25-22} = 0b1110;
2045 let Inst{21} = 1; // sh = '1'
2046 let Inst{14-12} = 0b000; // imm3 = '000'
2047 let Inst{7-6} = 0b00; // imm2 = '00'
2050 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2051 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2053 //===----------------------------------------------------------------------===//
2054 // Shift and rotate Instructions.
2057 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2058 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2059 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2060 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2062 let Uses = [CPSR] in {
2063 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2064 "rrx", "\t$Rd, $Rm",
2065 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2066 let Inst{31-27} = 0b11101;
2067 let Inst{26-25} = 0b01;
2068 let Inst{24-21} = 0b0010;
2069 let Inst{20} = ?; // The S bit.
2070 let Inst{19-16} = 0b1111; // Rn
2071 let Inst{14-12} = 0b000;
2072 let Inst{7-4} = 0b0011;
2076 let Defs = [CPSR] in {
2077 def t2MOVsrl_flag : T2TwoRegShiftImm<
2078 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2079 "lsrs", ".w\t$Rd, $Rm, #1",
2080 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2081 let Inst{31-27} = 0b11101;
2082 let Inst{26-25} = 0b01;
2083 let Inst{24-21} = 0b0010;
2084 let Inst{20} = 1; // The S bit.
2085 let Inst{19-16} = 0b1111; // Rn
2086 let Inst{5-4} = 0b01; // Shift type.
2087 // Shift amount = Inst{14-12:7-6} = 1.
2088 let Inst{14-12} = 0b000;
2089 let Inst{7-6} = 0b01;
2091 def t2MOVsra_flag : T2TwoRegShiftImm<
2092 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2093 "asrs", ".w\t$Rd, $Rm, #1",
2094 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2095 let Inst{31-27} = 0b11101;
2096 let Inst{26-25} = 0b01;
2097 let Inst{24-21} = 0b0010;
2098 let Inst{20} = 1; // The S bit.
2099 let Inst{19-16} = 0b1111; // Rn
2100 let Inst{5-4} = 0b10; // Shift type.
2101 // Shift amount = Inst{14-12:7-6} = 1.
2102 let Inst{14-12} = 0b000;
2103 let Inst{7-6} = 0b01;
2107 //===----------------------------------------------------------------------===//
2108 // Bitwise Instructions.
2111 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2112 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2113 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2114 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2115 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2116 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2117 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2118 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2119 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2121 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2122 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2123 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2125 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2126 string opc, string asm, list<dag> pattern>
2127 : T2I<oops, iops, itin, opc, asm, pattern> {
2132 let Inst{11-8} = Rd{3-0};
2133 let Inst{4-0} = msb{4-0};
2134 let Inst{14-12} = lsb{4-2};
2135 let Inst{7-6} = lsb{1-0};
2138 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2139 string opc, string asm, list<dag> pattern>
2140 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2143 let Inst{19-16} = Rn{3-0};
2146 let Constraints = "$src = $Rd" in
2147 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2148 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2149 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2150 let Inst{31-27} = 0b11110;
2152 let Inst{24-20} = 0b10110;
2153 let Inst{19-16} = 0b1111; // Rn
2157 let msb{4-0} = imm{9-5};
2158 let lsb{4-0} = imm{4-0};
2161 def t2SBFX: T2TwoRegBitFI<
2162 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2163 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2164 let Inst{31-27} = 0b11110;
2166 let Inst{24-20} = 0b10100;
2170 def t2UBFX: T2TwoRegBitFI<
2171 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2172 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2173 let Inst{31-27} = 0b11110;
2175 let Inst{24-20} = 0b11100;
2179 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2180 let Constraints = "$src = $Rd" in
2181 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2182 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2183 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2184 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2185 bf_inv_mask_imm:$imm))]> {
2186 let Inst{31-27} = 0b11110;
2188 let Inst{24-20} = 0b10110;
2192 let msb{4-0} = imm{9-5};
2193 let lsb{4-0} = imm{4-0};
2196 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2197 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2198 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2200 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2201 let AddedComplexity = 1 in
2202 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2203 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2204 UnOpFrag<(not node:$Src)>, 1, 1>;
2207 let AddedComplexity = 1 in
2208 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2209 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2211 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2212 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2213 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2214 Requires<[IsThumb2]>;
2216 def : T2Pat<(t2_so_imm_not:$src),
2217 (t2MVNi t2_so_imm_not:$src)>;
2219 //===----------------------------------------------------------------------===//
2220 // Multiply Instructions.
2222 let isCommutable = 1 in
2223 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2224 "mul", "\t$Rd, $Rn, $Rm",
2225 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2226 let Inst{31-27} = 0b11111;
2227 let Inst{26-23} = 0b0110;
2228 let Inst{22-20} = 0b000;
2229 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2230 let Inst{7-4} = 0b0000; // Multiply
2233 def t2MLA: T2FourReg<
2234 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2235 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2236 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2237 let Inst{31-27} = 0b11111;
2238 let Inst{26-23} = 0b0110;
2239 let Inst{22-20} = 0b000;
2240 let Inst{7-4} = 0b0000; // Multiply
2243 def t2MLS: T2FourReg<
2244 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2245 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2246 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2247 let Inst{31-27} = 0b11111;
2248 let Inst{26-23} = 0b0110;
2249 let Inst{22-20} = 0b000;
2250 let Inst{7-4} = 0b0001; // Multiply and Subtract
2253 // Extra precision multiplies with low / high results
2254 let neverHasSideEffects = 1 in {
2255 let isCommutable = 1 in {
2256 def t2SMULL : T2FourReg<
2257 (outs rGPR:$Rd, rGPR:$Ra),
2258 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2259 "smull", "\t$Rd, $Ra, $Rn, $Rm", []> {
2260 let Inst{31-27} = 0b11111;
2261 let Inst{26-23} = 0b0111;
2262 let Inst{22-20} = 0b000;
2263 let Inst{7-4} = 0b0000;
2266 def t2UMULL : T2FourReg<
2267 (outs rGPR:$Rd, rGPR:$Ra),
2268 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2269 "umull", "\t$Rd, $Ra, $Rn, $Rm", []> {
2270 let Inst{31-27} = 0b11111;
2271 let Inst{26-23} = 0b0111;
2272 let Inst{22-20} = 0b010;
2273 let Inst{7-4} = 0b0000;
2277 // Multiply + accumulate
2278 def t2SMLAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
2279 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2280 "smlal", "\t$Ra, $Rd, $Rn, $Rm", []>{
2281 let Inst{31-27} = 0b11111;
2282 let Inst{26-23} = 0b0111;
2283 let Inst{22-20} = 0b100;
2284 let Inst{7-4} = 0b0000;
2287 def t2UMLAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
2288 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2289 "umlal", "\t$Ra, $Rd, $Rn, $Rm", []>{
2290 let Inst{31-27} = 0b11111;
2291 let Inst{26-23} = 0b0111;
2292 let Inst{22-20} = 0b110;
2293 let Inst{7-4} = 0b0000;
2296 def t2UMAAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
2297 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2298 "umaal", "\t$Ra, $Rd, $Rn, $Rm", []>{
2299 let Inst{31-27} = 0b11111;
2300 let Inst{26-23} = 0b0111;
2301 let Inst{22-20} = 0b110;
2302 let Inst{7-4} = 0b0110;
2304 } // neverHasSideEffects
2306 // Rounding variants of the below included for disassembly only
2308 // Most significant word multiply
2309 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2310 "smmul", "\t$Rd, $Rn, $Rm",
2311 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]> {
2312 let Inst{31-27} = 0b11111;
2313 let Inst{26-23} = 0b0110;
2314 let Inst{22-20} = 0b101;
2315 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2316 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2319 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2320 "smmulr", "\t$Rd, $Rn, $Rm", []> {
2321 let Inst{31-27} = 0b11111;
2322 let Inst{26-23} = 0b0110;
2323 let Inst{22-20} = 0b101;
2324 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2325 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2328 def t2SMMLA : T2FourReg<
2329 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2330 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2331 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]> {
2332 let Inst{31-27} = 0b11111;
2333 let Inst{26-23} = 0b0110;
2334 let Inst{22-20} = 0b101;
2335 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2338 def t2SMMLAR: T2FourReg<
2339 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2340 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []> {
2341 let Inst{31-27} = 0b11111;
2342 let Inst{26-23} = 0b0110;
2343 let Inst{22-20} = 0b101;
2344 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2347 def t2SMMLS: T2FourReg<
2348 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2349 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2350 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]> {
2351 let Inst{31-27} = 0b11111;
2352 let Inst{26-23} = 0b0110;
2353 let Inst{22-20} = 0b110;
2354 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2357 def t2SMMLSR:T2FourReg<
2358 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2359 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []> {
2360 let Inst{31-27} = 0b11111;
2361 let Inst{26-23} = 0b0110;
2362 let Inst{22-20} = 0b110;
2363 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2366 multiclass T2I_smul<string opc, PatFrag opnode> {
2367 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2368 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2369 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2370 (sext_inreg rGPR:$Rm, i16)))]> {
2371 let Inst{31-27} = 0b11111;
2372 let Inst{26-23} = 0b0110;
2373 let Inst{22-20} = 0b001;
2374 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2375 let Inst{7-6} = 0b00;
2376 let Inst{5-4} = 0b00;
2379 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2380 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2381 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2382 (sra rGPR:$Rm, (i32 16))))]> {
2383 let Inst{31-27} = 0b11111;
2384 let Inst{26-23} = 0b0110;
2385 let Inst{22-20} = 0b001;
2386 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2387 let Inst{7-6} = 0b00;
2388 let Inst{5-4} = 0b01;
2391 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2392 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2393 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2394 (sext_inreg rGPR:$Rm, i16)))]> {
2395 let Inst{31-27} = 0b11111;
2396 let Inst{26-23} = 0b0110;
2397 let Inst{22-20} = 0b001;
2398 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2399 let Inst{7-6} = 0b00;
2400 let Inst{5-4} = 0b10;
2403 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2404 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2405 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2406 (sra rGPR:$Rm, (i32 16))))]> {
2407 let Inst{31-27} = 0b11111;
2408 let Inst{26-23} = 0b0110;
2409 let Inst{22-20} = 0b001;
2410 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2411 let Inst{7-6} = 0b00;
2412 let Inst{5-4} = 0b11;
2415 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2416 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2417 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2418 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]> {
2419 let Inst{31-27} = 0b11111;
2420 let Inst{26-23} = 0b0110;
2421 let Inst{22-20} = 0b011;
2422 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2423 let Inst{7-6} = 0b00;
2424 let Inst{5-4} = 0b00;
2427 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2428 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2429 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2430 (sra rGPR:$Rm, (i32 16))), (i32 16)))]> {
2431 let Inst{31-27} = 0b11111;
2432 let Inst{26-23} = 0b0110;
2433 let Inst{22-20} = 0b011;
2434 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2435 let Inst{7-6} = 0b00;
2436 let Inst{5-4} = 0b01;
2441 multiclass T2I_smla<string opc, PatFrag opnode> {
2443 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2444 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2445 [(set rGPR:$Rd, (add rGPR:$Ra,
2446 (opnode (sext_inreg rGPR:$Rn, i16),
2447 (sext_inreg rGPR:$Rm, i16))))]> {
2448 let Inst{31-27} = 0b11111;
2449 let Inst{26-23} = 0b0110;
2450 let Inst{22-20} = 0b001;
2451 let Inst{7-6} = 0b00;
2452 let Inst{5-4} = 0b00;
2456 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2457 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2458 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2459 (sra rGPR:$Rm, (i32 16)))))]> {
2460 let Inst{31-27} = 0b11111;
2461 let Inst{26-23} = 0b0110;
2462 let Inst{22-20} = 0b001;
2463 let Inst{7-6} = 0b00;
2464 let Inst{5-4} = 0b01;
2468 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2469 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2470 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2471 (sext_inreg rGPR:$Rm, i16))))]> {
2472 let Inst{31-27} = 0b11111;
2473 let Inst{26-23} = 0b0110;
2474 let Inst{22-20} = 0b001;
2475 let Inst{7-6} = 0b00;
2476 let Inst{5-4} = 0b10;
2480 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2481 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2482 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2483 (sra rGPR:$Rm, (i32 16)))))]> {
2484 let Inst{31-27} = 0b11111;
2485 let Inst{26-23} = 0b0110;
2486 let Inst{22-20} = 0b001;
2487 let Inst{7-6} = 0b00;
2488 let Inst{5-4} = 0b11;
2492 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2493 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2494 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2495 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]> {
2496 let Inst{31-27} = 0b11111;
2497 let Inst{26-23} = 0b0110;
2498 let Inst{22-20} = 0b011;
2499 let Inst{7-6} = 0b00;
2500 let Inst{5-4} = 0b00;
2504 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2505 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2506 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2507 (sra rGPR:$Rm, (i32 16))), (i32 16))))]> {
2508 let Inst{31-27} = 0b11111;
2509 let Inst{26-23} = 0b0110;
2510 let Inst{22-20} = 0b011;
2511 let Inst{7-6} = 0b00;
2512 let Inst{5-4} = 0b01;
2516 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2517 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2519 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2520 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2521 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2522 [/* For disassembly only; pattern left blank */]>;
2523 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2524 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2525 [/* For disassembly only; pattern left blank */]>;
2526 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2527 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2528 [/* For disassembly only; pattern left blank */]>;
2529 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2530 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2531 [/* For disassembly only; pattern left blank */]>;
2533 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2534 // These are for disassembly only.
2536 def t2SMUAD: T2ThreeReg_mac<
2537 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2538 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []> {
2539 let Inst{15-12} = 0b1111;
2541 def t2SMUADX:T2ThreeReg_mac<
2542 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2543 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []> {
2544 let Inst{15-12} = 0b1111;
2546 def t2SMUSD: T2ThreeReg_mac<
2547 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2548 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []> {
2549 let Inst{15-12} = 0b1111;
2551 def t2SMUSDX:T2ThreeReg_mac<
2552 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2553 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []> {
2554 let Inst{15-12} = 0b1111;
2556 def t2SMLAD : T2ThreeReg_mac<
2557 0, 0b010, 0b0000, (outs rGPR:$Rd),
2558 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2559 "\t$Rd, $Rn, $Rm, $Ra", []>;
2560 def t2SMLADX : T2FourReg_mac<
2561 0, 0b010, 0b0001, (outs rGPR:$Rd),
2562 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2563 "\t$Rd, $Rn, $Rm, $Ra", []>;
2564 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2565 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2566 "\t$Rd, $Rn, $Rm, $Ra", []>;
2567 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2568 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2569 "\t$Rd, $Rn, $Rm, $Ra", []>;
2570 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2571 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2572 "\t$Ra, $Rd, $Rm, $Rn", []>;
2573 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2574 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2575 "\t$Ra, $Rd, $Rm, $Rn", []>;
2576 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2577 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2578 "\t$Ra, $Rd, $Rm, $Rn", []>;
2579 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2580 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2581 "\t$Ra, $Rd, $Rm, $Rn", []>;
2583 //===----------------------------------------------------------------------===//
2584 // Misc. Arithmetic Instructions.
2587 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2588 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2589 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2590 let Inst{31-27} = 0b11111;
2591 let Inst{26-22} = 0b01010;
2592 let Inst{21-20} = op1;
2593 let Inst{15-12} = 0b1111;
2594 let Inst{7-6} = 0b10;
2595 let Inst{5-4} = op2;
2596 let Rn{3-0} = Rm{3-0};
2599 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2600 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2602 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2603 "rbit", "\t$Rd, $Rm",
2604 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2606 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2607 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2609 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2610 "rev16", ".w\t$Rd, $Rm",
2612 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF),
2613 (or (and (shl rGPR:$Rm, (i32 8)), 0xFF00),
2614 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF0000),
2615 (and (shl rGPR:$Rm, (i32 8)), 0xFF000000)))))]>;
2617 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2618 "revsh", ".w\t$Rd, $Rm",
2621 (or (srl (and rGPR:$Rm, 0xFF00), (i32 8)),
2622 (shl rGPR:$Rm, (i32 8))), i16))]>;
2624 def t2PKHBT : T2ThreeReg<
2625 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2626 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2627 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2628 (and (shl rGPR:$Rm, lsl_amt:$sh),
2630 Requires<[HasT2ExtractPack, IsThumb2]> {
2631 let Inst{31-27} = 0b11101;
2632 let Inst{26-25} = 0b01;
2633 let Inst{24-20} = 0b01100;
2634 let Inst{5} = 0; // BT form
2638 let Inst{14-12} = sh{7-5};
2639 let Inst{7-6} = sh{4-3};
2642 // Alternate cases for PKHBT where identities eliminate some nodes.
2643 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2644 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2645 Requires<[HasT2ExtractPack, IsThumb2]>;
2646 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2647 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2648 Requires<[HasT2ExtractPack, IsThumb2]>;
2650 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2651 // will match the pattern below.
2652 def t2PKHTB : T2ThreeReg<
2653 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2654 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2655 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2656 (and (sra rGPR:$Rm, asr_amt:$sh),
2658 Requires<[HasT2ExtractPack, IsThumb2]> {
2659 let Inst{31-27} = 0b11101;
2660 let Inst{26-25} = 0b01;
2661 let Inst{24-20} = 0b01100;
2662 let Inst{5} = 1; // TB form
2666 let Inst{14-12} = sh{7-5};
2667 let Inst{7-6} = sh{4-3};
2670 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2671 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2672 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2673 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2674 Requires<[HasT2ExtractPack, IsThumb2]>;
2675 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2676 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2677 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2678 Requires<[HasT2ExtractPack, IsThumb2]>;
2680 //===----------------------------------------------------------------------===//
2681 // Comparison Instructions...
2683 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2684 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2685 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2686 defm t2CMPz : T2I_cmp_irs<0b1101, "cmp",
2687 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2688 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
2690 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2691 // Compare-to-zero still works out, just not the relationals
2692 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2693 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2694 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2695 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2696 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2698 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2699 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2701 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2702 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2704 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2705 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2706 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2707 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2708 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2709 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2711 // Conditional moves
2712 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2713 // a two-value operand where a dag node expects two operands. :(
2714 let neverHasSideEffects = 1 in {
2715 def t2MOVCCr : T2TwoReg<
2716 (outs rGPR:$Rd), (ins rGPR:$false, rGPR:$Rm), IIC_iCMOVr,
2717 "mov", ".w\t$Rd, $Rm",
2718 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2719 RegConstraint<"$false = $Rd"> {
2720 let Inst{31-27} = 0b11101;
2721 let Inst{26-25} = 0b01;
2722 let Inst{24-21} = 0b0010;
2723 let Inst{20} = 0; // The S bit.
2724 let Inst{19-16} = 0b1111; // Rn
2725 let Inst{14-12} = 0b000;
2726 let Inst{7-4} = 0b0000;
2729 let isMoveImm = 1 in
2730 def t2MOVCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2731 IIC_iCMOVi, "mov", ".w\t$Rd, $imm",
2732 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2733 RegConstraint<"$false = $Rd"> {
2734 let Inst{31-27} = 0b11110;
2736 let Inst{24-21} = 0b0010;
2737 let Inst{20} = 0; // The S bit.
2738 let Inst{19-16} = 0b1111; // Rn
2742 let isMoveImm = 1 in
2743 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, i32imm:$imm),
2745 "movw", "\t$Rd, $imm", []>,
2746 RegConstraint<"$false = $Rd"> {
2747 let Inst{31-27} = 0b11110;
2749 let Inst{24-21} = 0b0010;
2750 let Inst{20} = 0; // The S bit.
2756 let Inst{11-8} = Rd{3-0};
2757 let Inst{19-16} = imm{15-12};
2758 let Inst{26} = imm{11};
2759 let Inst{14-12} = imm{10-8};
2760 let Inst{7-0} = imm{7-0};
2763 let isMoveImm = 1 in
2764 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2765 (ins rGPR:$false, i32imm:$src, pred:$p),
2766 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2768 let isMoveImm = 1 in
2769 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2770 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2771 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2772 imm:$cc, CCR:$ccr))*/]>,
2773 RegConstraint<"$false = $Rd"> {
2774 let Inst{31-27} = 0b11110;
2776 let Inst{24-21} = 0b0011;
2777 let Inst{20} = 0; // The S bit.
2778 let Inst{19-16} = 0b1111; // Rn
2782 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2783 string opc, string asm, list<dag> pattern>
2784 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2785 let Inst{31-27} = 0b11101;
2786 let Inst{26-25} = 0b01;
2787 let Inst{24-21} = 0b0010;
2788 let Inst{20} = 0; // The S bit.
2789 let Inst{19-16} = 0b1111; // Rn
2790 let Inst{5-4} = opcod; // Shift type.
2792 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2793 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2794 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2795 RegConstraint<"$false = $Rd">;
2796 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2797 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2798 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2799 RegConstraint<"$false = $Rd">;
2800 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2801 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2802 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2803 RegConstraint<"$false = $Rd">;
2804 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2805 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2806 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2807 RegConstraint<"$false = $Rd">;
2808 } // neverHasSideEffects
2810 //===----------------------------------------------------------------------===//
2811 // Atomic operations intrinsics
2814 // memory barriers protect the atomic sequences
2815 let hasSideEffects = 1 in {
2816 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2817 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2818 Requires<[IsThumb, HasDB]> {
2820 let Inst{31-4} = 0xf3bf8f5;
2821 let Inst{3-0} = opt;
2825 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2827 [/* For disassembly only; pattern left blank */]>,
2828 Requires<[IsThumb, HasDB]> {
2830 let Inst{31-4} = 0xf3bf8f4;
2831 let Inst{3-0} = opt;
2834 // ISB has only full system option -- for disassembly only
2835 def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
2836 [/* For disassembly only; pattern left blank */]>,
2837 Requires<[IsThumb2, HasV7]> {
2838 let Inst{31-4} = 0xf3bf8f6;
2839 let Inst{3-0} = 0b1111;
2842 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2843 InstrItinClass itin, string opc, string asm, string cstr,
2844 list<dag> pattern, bits<4> rt2 = 0b1111>
2845 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2846 let Inst{31-27} = 0b11101;
2847 let Inst{26-20} = 0b0001101;
2848 let Inst{11-8} = rt2;
2849 let Inst{7-6} = 0b01;
2850 let Inst{5-4} = opcod;
2851 let Inst{3-0} = 0b1111;
2855 let Inst{19-16} = Rn{3-0};
2856 let Inst{15-12} = Rt{3-0};
2858 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2859 InstrItinClass itin, string opc, string asm, string cstr,
2860 list<dag> pattern, bits<4> rt2 = 0b1111>
2861 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2862 let Inst{31-27} = 0b11101;
2863 let Inst{26-20} = 0b0001100;
2864 let Inst{11-8} = rt2;
2865 let Inst{7-6} = 0b01;
2866 let Inst{5-4} = opcod;
2871 let Inst{11-8} = Rd{3-0};
2872 let Inst{19-16} = Rn{3-0};
2873 let Inst{15-12} = Rt{3-0};
2876 let mayLoad = 1 in {
2877 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2878 Size4Bytes, NoItinerary, "ldrexb", "\t$Rt, [$Rn]",
2880 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2881 Size4Bytes, NoItinerary, "ldrexh", "\t$Rt, [$Rn]",
2883 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2884 Size4Bytes, NoItinerary,
2885 "ldrex", "\t$Rt, [$Rn]", "",
2887 let Inst{31-27} = 0b11101;
2888 let Inst{26-20} = 0b0000101;
2889 let Inst{11-8} = 0b1111;
2890 let Inst{7-0} = 0b00000000; // imm8 = 0
2892 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2), (ins rGPR:$Rn),
2893 AddrModeNone, Size4Bytes, NoItinerary,
2894 "ldrexd", "\t$Rt, $Rt2, [$Rn]", "",
2897 let Inst{11-8} = Rt2{3-0};
2901 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2902 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2903 AddrModeNone, Size4Bytes, NoItinerary,
2904 "strexb", "\t$Rd, $Rt, [$Rn]", "", []>;
2905 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2906 AddrModeNone, Size4Bytes, NoItinerary,
2907 "strexh", "\t$Rd, $Rt, [$Rn]", "", []>;
2908 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2909 AddrModeNone, Size4Bytes, NoItinerary,
2910 "strex", "\t$Rd, $Rt, [$Rn]", "",
2912 let Inst{31-27} = 0b11101;
2913 let Inst{26-20} = 0b0000100;
2914 let Inst{7-0} = 0b00000000; // imm8 = 0
2916 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2917 (ins rGPR:$Rt, rGPR:$Rt2, rGPR:$Rn),
2918 AddrModeNone, Size4Bytes, NoItinerary,
2919 "strexd", "\t$Rd, $Rt, $Rt2, [$Rn]", "", [],
2922 let Inst{11-8} = Rt2{3-0};
2926 // Clear-Exclusive is for disassembly only.
2927 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2928 [/* For disassembly only; pattern left blank */]>,
2929 Requires<[IsARM, HasV7]> {
2930 let Inst{31-20} = 0xf3b;
2931 let Inst{15-14} = 0b10;
2933 let Inst{7-4} = 0b0010;
2936 //===----------------------------------------------------------------------===//
2940 // __aeabi_read_tp preserves the registers r1-r3.
2942 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
2943 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2944 "bl\t__aeabi_read_tp",
2945 [(set R0, ARMthread_pointer)]> {
2946 let Inst{31-27} = 0b11110;
2947 let Inst{15-14} = 0b11;
2952 //===----------------------------------------------------------------------===//
2953 // SJLJ Exception handling intrinsics
2954 // eh_sjlj_setjmp() is an instruction sequence to store the return
2955 // address and save #0 in R0 for the non-longjmp case.
2956 // Since by its nature we may be coming from some other function to get
2957 // here, and we're using the stack frame for the containing function to
2958 // save/restore registers, we can't keep anything live in regs across
2959 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2960 // when we get here from a longjmp(). We force everthing out of registers
2961 // except for our own input by listing the relevant registers in Defs. By
2962 // doing so, we also cause the prologue/epilogue code to actively preserve
2963 // all of the callee-saved resgisters, which is exactly what we want.
2964 // $val is a scratch register for our use.
2966 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2967 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2968 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2969 D31 ], hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2970 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2971 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2972 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2973 Requires<[IsThumb2, HasVFP2]>;
2977 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2978 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2979 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2980 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2981 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2982 Requires<[IsThumb2, NoVFP]>;
2986 //===----------------------------------------------------------------------===//
2987 // Control-Flow Instructions
2990 // FIXME: remove when we have a way to marking a MI with these properties.
2991 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2993 // FIXME: Should pc be an implicit operand like PICADD, etc?
2994 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2995 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2996 def t2LDMIA_RET: T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2997 reglist:$regs, variable_ops),
2999 "ldmia${p}.w\t$Rn!, $regs",
3004 let Inst{31-27} = 0b11101;
3005 let Inst{26-25} = 0b00;
3006 let Inst{24-23} = 0b01; // Increment After
3008 let Inst{21} = 1; // Writeback
3010 let Inst{19-16} = Rn;
3011 let Inst{15-0} = regs;
3014 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
3015 let isPredicable = 1 in
3016 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
3018 [(br bb:$target)]> {
3019 let Inst{31-27} = 0b11110;
3020 let Inst{15-14} = 0b10;
3024 let Inst{26} = target{19};
3025 let Inst{11} = target{18};
3026 let Inst{13} = target{17};
3027 let Inst{21-16} = target{16-11};
3028 let Inst{10-0} = target{10-0};
3031 let isNotDuplicable = 1, isIndirectBranch = 1 in {
3032 def t2BR_JT : tPseudoInst<(outs),
3033 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3034 SizeSpecial, IIC_Br,
3035 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
3037 // FIXME: Add a non-pc based case that can be predicated.
3038 def t2TBB_JT : tPseudoInst<(outs),
3039 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3040 SizeSpecial, IIC_Br, []>;
3042 def t2TBH_JT : tPseudoInst<(outs),
3043 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3044 SizeSpecial, IIC_Br, []>;
3046 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3047 "tbb", "\t[$Rn, $Rm]", []> {
3050 let Inst{27-20} = 0b10001101;
3051 let Inst{19-16} = Rn;
3052 let Inst{15-5} = 0b11110000000;
3053 let Inst{4} = 0; // B form
3057 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3058 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3061 let Inst{27-20} = 0b10001101;
3062 let Inst{19-16} = Rn;
3063 let Inst{15-5} = 0b11110000000;
3064 let Inst{4} = 1; // H form
3067 } // isNotDuplicable, isIndirectBranch
3069 } // isBranch, isTerminator, isBarrier
3071 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3072 // a two-value operand where a dag node expects two operands. :(
3073 let isBranch = 1, isTerminator = 1 in
3074 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3076 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3077 let Inst{31-27} = 0b11110;
3078 let Inst{15-14} = 0b10;
3084 let Defs = [ITSTATE] in
3085 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3086 AddrModeNone, Size2Bytes, IIC_iALUx,
3087 "it$mask\t$cc", "", []> {
3088 // 16-bit instruction.
3089 let Inst{31-16} = 0x0000;
3090 let Inst{15-8} = 0b10111111;
3094 let Inst{7-4} = cc{3-0};
3095 let Inst{3-0} = mask{3-0};
3098 // Branch and Exchange Jazelle -- for disassembly only
3100 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3101 [/* For disassembly only; pattern left blank */]> {
3102 let Inst{31-27} = 0b11110;
3104 let Inst{25-20} = 0b111100;
3105 let Inst{15-14} = 0b10;
3109 let Inst{19-16} = func{3-0};
3112 // Change Processor State is a system instruction -- for disassembly only.
3113 // The singleton $opt operand contains the following information:
3114 // opt{4-0} = mode from Inst{4-0}
3115 // opt{5} = changemode from Inst{17}
3116 // opt{8-6} = AIF from Inst{8-6}
3117 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
3118 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
3119 [/* For disassembly only; pattern left blank */]> {
3120 let Inst{31-27} = 0b11110;
3122 let Inst{25-20} = 0b111010;
3123 let Inst{15-14} = 0b10;
3129 let Inst{4-0} = opt{4-0};
3132 let Inst{8} = opt{5};
3135 let Inst{5} = opt{6};
3138 let Inst{6} = opt{7};
3141 let Inst{7} = opt{8};
3144 let Inst{10-9} = opt{10-9};
3147 // A6.3.4 Branches and miscellaneous control
3148 // Table A6-14 Change Processor State, and hint instructions
3149 // Helper class for disassembly only.
3150 class T2I_hint<bits<8> op7_0, string opc, string asm>
3151 : T2I<(outs), (ins), NoItinerary, opc, asm,
3152 [/* For disassembly only; pattern left blank */]> {
3153 let Inst{31-20} = 0xf3a;
3154 let Inst{15-14} = 0b10;
3156 let Inst{10-8} = 0b000;
3157 let Inst{7-0} = op7_0;
3160 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3161 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3162 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3163 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3164 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3166 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
3167 [/* For disassembly only; pattern left blank */]> {
3168 let Inst{31-20} = 0xf3a;
3169 let Inst{15-14} = 0b10;
3171 let Inst{10-8} = 0b000;
3172 let Inst{7-4} = 0b1111;
3175 // Secure Monitor Call is a system instruction -- for disassembly only
3176 // Option = Inst{19-16}
3177 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
3178 [/* For disassembly only; pattern left blank */]> {
3179 let Inst{31-27} = 0b11110;
3180 let Inst{26-20} = 0b1111111;
3181 let Inst{15-12} = 0b1000;
3184 let Inst{19-16} = opt{3-0};
3187 class T2SRS<bits<12> op31_20,
3188 dag oops, dag iops, InstrItinClass itin,
3189 string opc, string asm, list<dag> pattern>
3190 : T2I<oops, iops, itin, opc, asm, pattern> {
3191 let Inst{31-20} = op31_20{11-0};
3194 let Inst{4-0} = mode{4-0};
3197 // Store Return State is a system instruction -- for disassembly only
3198 def t2SRSDBW : T2SRS<0b111010000010,
3199 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3200 [/* For disassembly only; pattern left blank */]>;
3201 def t2SRSDB : T2SRS<0b111010000000,
3202 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3203 [/* For disassembly only; pattern left blank */]>;
3204 def t2SRSIAW : T2SRS<0b111010011010,
3205 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3206 [/* For disassembly only; pattern left blank */]>;
3207 def t2SRSIA : T2SRS<0b111010011000,
3208 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3209 [/* For disassembly only; pattern left blank */]>;
3211 // Return From Exception is a system instruction -- for disassembly only
3213 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3214 string opc, string asm, list<dag> pattern>
3215 : T2I<oops, iops, itin, opc, asm, pattern> {
3216 let Inst{31-20} = op31_20{11-0};
3219 let Inst{19-16} = Rn{3-0};
3222 def t2RFEDBW : T2RFE<0b111010000011,
3223 (outs), (ins rGPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3224 [/* For disassembly only; pattern left blank */]>;
3225 def t2RFEDB : T2RFE<0b111010000001,
3226 (outs), (ins rGPR:$Rn), NoItinerary, "rfeab", "\t$Rn",
3227 [/* For disassembly only; pattern left blank */]>;
3228 def t2RFEIAW : T2RFE<0b111010011011,
3229 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3230 [/* For disassembly only; pattern left blank */]>;
3231 def t2RFEIA : T2RFE<0b111010011001,
3232 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3233 [/* For disassembly only; pattern left blank */]>;
3235 //===----------------------------------------------------------------------===//
3236 // Non-Instruction Patterns
3239 // 32-bit immediate using movw + movt.
3240 // This is a single pseudo instruction to make it re-materializable.
3241 // FIXME: Remove this when we can do generalized remat.
3242 let isReMaterializable = 1, isMoveImm = 1 in
3243 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3244 [(set rGPR:$dst, (i32 imm:$src))]>,
3245 Requires<[IsThumb, HasV6T2]>;
3247 // ConstantPool, GlobalAddress, and JumpTable
3248 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3249 Requires<[IsThumb2, DontUseMovt]>;
3250 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3251 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3252 Requires<[IsThumb2, UseMovt]>;
3254 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3255 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3257 // Pseudo instruction that combines ldr from constpool and add pc. This should
3258 // be expanded into two instructions late to allow if-conversion and
3260 let canFoldAsLoad = 1, isReMaterializable = 1 in
3261 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3263 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3265 Requires<[IsThumb2]>;
3267 //===----------------------------------------------------------------------===//
3268 // Move between special register and ARM core register -- for disassembly only
3271 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3272 dag oops, dag iops, InstrItinClass itin,
3273 string opc, string asm, list<dag> pattern>
3274 : T2I<oops, iops, itin, opc, asm, pattern> {
3275 let Inst{31-20} = op31_20{11-0};
3276 let Inst{15-14} = op15_14{1-0};
3277 let Inst{12} = op12{0};
3280 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3281 dag oops, dag iops, InstrItinClass itin,
3282 string opc, string asm, list<dag> pattern>
3283 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3285 let Inst{11-8} = Rd{3-0};
3288 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3289 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3290 [/* For disassembly only; pattern left blank */]>;
3291 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3292 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3293 [/* For disassembly only; pattern left blank */]>;
3295 class T2MSR<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3296 dag oops, dag iops, InstrItinClass itin,
3297 string opc, string asm, list<dag> pattern>
3298 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3301 let Inst{19-16} = Rn{3-0};
3302 let Inst{11-8} = mask{3-0};
3305 def t2MSR : T2MSR<0b111100111000, 0b10, 0,
3306 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3308 [/* For disassembly only; pattern left blank */]>;
3309 def t2MSRsys : T2MSR<0b111100111001, 0b10, 0,
3310 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3312 [/* For disassembly only; pattern left blank */]>;