1 //===- ARMInstrThumb2.td - Thumb2 support for ARM -------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file describes the Thumb2 instruction set.
12 //===----------------------------------------------------------------------===//
14 // IT block predicate field
15 def it_pred : Operand<i32> {
16 let PrintMethod = "printMandatoryPredicateOperand";
19 // IT block condition mask
20 def it_mask : Operand<i32> {
21 let PrintMethod = "printThumbITMask";
24 // Shifted operands. No register controlled shifts for Thumb2.
25 // Note: We do not support rrx shifted operands yet.
26 def t2_so_reg : Operand<i32>, // reg imm
27 ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
29 let EncoderMethod = "getT2SORegOpValue";
30 let PrintMethod = "printT2SOOperand";
31 let MIOperandInfo = (ops rGPR, i32imm);
34 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
35 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
36 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
39 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
40 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
41 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), MVT::i32);
44 // t2_so_imm - Match a 32-bit immediate operand, which is an
45 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
46 // immediate splatted into multiple bytes of the word. t2_so_imm values are
47 // represented in the imm field in the same 12-bit form that they are encoded
48 // into t2_so_imm instructions: the 8-bit immediate is the least significant
49 // bits [bits 0-7], the 4-bit shift/splat amount is the next 4 bits [bits 8-11].
50 def t2_so_imm : Operand<i32>, PatLeaf<(imm), [{ return Pred_t2_so_imm(N); }]> {
51 let EncoderMethod = "getT2SOImmOpValue";
54 // t2_so_imm_not - Match an immediate that is a complement
56 def t2_so_imm_not : Operand<i32>,
58 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
59 }], t2_so_imm_not_XFORM>;
61 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
62 def t2_so_imm_neg : Operand<i32>,
64 return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
65 }], t2_so_imm_neg_XFORM>;
67 // Break t2_so_imm's up into two pieces. This handles immediates with up to 16
68 // bits set in them. This uses t2_so_imm2part to match and t2_so_imm2part_[12]
69 // to get the first/second pieces.
70 def t2_so_imm2part : Operand<i32>,
72 return ARM_AM::isT2SOImmTwoPartVal((unsigned)N->getZExtValue());
76 def t2_so_imm2part_1 : SDNodeXForm<imm, [{
77 unsigned V = ARM_AM::getT2SOImmTwoPartFirst((unsigned)N->getZExtValue());
78 return CurDAG->getTargetConstant(V, MVT::i32);
81 def t2_so_imm2part_2 : SDNodeXForm<imm, [{
82 unsigned V = ARM_AM::getT2SOImmTwoPartSecond((unsigned)N->getZExtValue());
83 return CurDAG->getTargetConstant(V, MVT::i32);
86 def t2_so_neg_imm2part : Operand<i32>, PatLeaf<(imm), [{
87 return ARM_AM::isT2SOImmTwoPartVal(-(int)N->getZExtValue());
91 def t2_so_neg_imm2part_1 : SDNodeXForm<imm, [{
92 unsigned V = ARM_AM::getT2SOImmTwoPartFirst(-(int)N->getZExtValue());
93 return CurDAG->getTargetConstant(V, MVT::i32);
96 def t2_so_neg_imm2part_2 : SDNodeXForm<imm, [{
97 unsigned V = ARM_AM::getT2SOImmTwoPartSecond(-(int)N->getZExtValue());
98 return CurDAG->getTargetConstant(V, MVT::i32);
101 /// imm1_31 predicate - True if the 32-bit immediate is in the range [1,31].
102 def imm1_31 : PatLeaf<(i32 imm), [{
103 return (int32_t)N->getZExtValue() >= 1 && (int32_t)N->getZExtValue() < 32;
106 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
107 def imm0_4095 : Operand<i32>,
108 PatLeaf<(i32 imm), [{
109 return (uint32_t)N->getZExtValue() < 4096;
112 def imm0_4095_neg : PatLeaf<(i32 imm), [{
113 return (uint32_t)(-N->getZExtValue()) < 4096;
116 def imm0_255_neg : PatLeaf<(i32 imm), [{
117 return (uint32_t)(-N->getZExtValue()) < 255;
120 def imm0_255_not : PatLeaf<(i32 imm), [{
121 return (uint32_t)(~N->getZExtValue()) < 255;
124 // Define Thumb2 specific addressing modes.
126 // t2addrmode_imm12 := reg + imm12
127 def t2addrmode_imm12 : Operand<i32>,
128 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
129 let PrintMethod = "printAddrModeImm12Operand";
130 string EncoderMethod = "getAddrModeImm12OpValue";
131 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
134 // t2addrmode_imm8 := reg +/- imm8
135 def t2addrmode_imm8 : Operand<i32>,
136 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
137 let PrintMethod = "printT2AddrModeImm8Operand";
138 string EncoderMethod = "getT2AddrModeImm8OpValue";
139 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
142 def t2am_imm8_offset : Operand<i32>,
143 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
144 [], [SDNPWantRoot]> {
145 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
146 string EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
149 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
150 def t2addrmode_imm8s4 : Operand<i32> {
151 let PrintMethod = "printT2AddrModeImm8s4Operand";
152 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
155 def t2am_imm8s4_offset : Operand<i32> {
156 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
159 // t2addrmode_so_reg := reg + (reg << imm2)
160 def t2addrmode_so_reg : Operand<i32>,
161 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
162 let PrintMethod = "printT2AddrModeSoRegOperand";
163 string EncoderMethod = "getT2AddrModeSORegOpValue";
164 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
168 //===----------------------------------------------------------------------===//
169 // Multiclass helpers...
173 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
174 string opc, string asm, list<dag> pattern>
175 : T2I<oops, iops, itin, opc, asm, pattern> {
179 let Inst{11-8} = Rd{3-0};
180 let Inst{26} = imm{11};
181 let Inst{14-12} = imm{10-8};
182 let Inst{7-0} = imm{7-0};
186 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
187 string opc, string asm, list<dag> pattern>
188 : T2sI<oops, iops, itin, opc, asm, pattern> {
193 let Inst{11-8} = Rd{3-0};
194 let Inst{26} = imm{11};
195 let Inst{14-12} = imm{10-8};
196 let Inst{7-0} = imm{7-0};
199 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
200 string opc, string asm, list<dag> pattern>
201 : T2I<oops, iops, itin, opc, asm, pattern> {
205 let Inst{19-16} = Rn{3-0};
206 let Inst{26} = imm{11};
207 let Inst{14-12} = imm{10-8};
208 let Inst{7-0} = imm{7-0};
212 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
213 string opc, string asm, list<dag> pattern>
214 : T2I<oops, iops, itin, opc, asm, pattern> {
218 let Inst{11-8} = Rd{3-0};
219 let Inst{3-0} = ShiftedRm{3-0};
220 let Inst{5-4} = ShiftedRm{6-5};
221 let Inst{14-12} = ShiftedRm{11-9};
222 let Inst{7-6} = ShiftedRm{8-7};
225 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
226 string opc, string asm, list<dag> pattern>
227 : T2I<oops, iops, itin, opc, asm, pattern> {
231 let Inst{11-8} = Rd{3-0};
232 let Inst{3-0} = ShiftedRm{3-0};
233 let Inst{5-4} = ShiftedRm{6-5};
234 let Inst{14-12} = ShiftedRm{11-9};
235 let Inst{7-6} = ShiftedRm{8-7};
238 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
239 string opc, string asm, list<dag> pattern>
240 : T2I<oops, iops, itin, opc, asm, pattern> {
244 let Inst{19-16} = Rn{3-0};
245 let Inst{3-0} = ShiftedRm{3-0};
246 let Inst{5-4} = ShiftedRm{6-5};
247 let Inst{14-12} = ShiftedRm{11-9};
248 let Inst{7-6} = ShiftedRm{8-7};
251 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
252 string opc, string asm, list<dag> pattern>
253 : T2I<oops, iops, itin, opc, asm, pattern> {
257 let Inst{11-8} = Rd{3-0};
258 let Inst{3-0} = Rm{3-0};
261 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
262 string opc, string asm, list<dag> pattern>
263 : T2sI<oops, iops, itin, opc, asm, pattern> {
267 let Inst{11-8} = Rd{3-0};
268 let Inst{3-0} = Rm{3-0};
271 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
272 string opc, string asm, list<dag> pattern>
273 : T2I<oops, iops, itin, opc, asm, pattern> {
277 let Inst{19-16} = Rn{3-0};
278 let Inst{3-0} = Rm{3-0};
282 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
283 string opc, string asm, list<dag> pattern>
284 : T2I<oops, iops, itin, opc, asm, pattern> {
288 let Inst{11-8} = Rd{3-0};
289 let Inst{3-0} = Rm{3-0};
292 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
293 string opc, string asm, list<dag> pattern>
294 : T2sI<oops, iops, itin, opc, asm, pattern> {
299 let Inst{11-8} = Rd{3-0};
300 let Inst{19-16} = Rn{3-0};
301 let Inst{26} = imm{11};
302 let Inst{14-12} = imm{10-8};
303 let Inst{7-0} = imm{7-0};
306 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
307 string opc, string asm, list<dag> pattern>
308 : T2I<oops, iops, itin, opc, asm, pattern> {
313 let Inst{11-8} = Rd{3-0};
314 let Inst{3-0} = Rm{3-0};
315 let Inst{14-12} = imm{4-2};
316 let Inst{7-6} = imm{1-0};
319 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
320 string opc, string asm, list<dag> pattern>
321 : T2sI<oops, iops, itin, opc, asm, pattern> {
326 let Inst{11-8} = Rd{3-0};
327 let Inst{3-0} = Rm{3-0};
328 let Inst{14-12} = imm{4-2};
329 let Inst{7-6} = imm{1-0};
332 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
333 string opc, string asm, list<dag> pattern>
334 : T2I<oops, iops, itin, opc, asm, pattern> {
339 let Inst{11-8} = Rd{3-0};
340 let Inst{19-16} = Rn{3-0};
341 let Inst{3-0} = Rm{3-0};
344 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
345 string opc, string asm, list<dag> pattern>
346 : T2sI<oops, iops, itin, opc, asm, pattern> {
351 let Inst{11-8} = Rd{3-0};
352 let Inst{19-16} = Rn{3-0};
353 let Inst{3-0} = Rm{3-0};
356 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
357 string opc, string asm, list<dag> pattern>
358 : T2I<oops, iops, itin, opc, asm, pattern> {
363 let Inst{11-8} = Rd{3-0};
364 let Inst{19-16} = Rn{3-0};
365 let Inst{3-0} = ShiftedRm{3-0};
366 let Inst{5-4} = ShiftedRm{6-5};
367 let Inst{14-12} = ShiftedRm{11-9};
368 let Inst{7-6} = ShiftedRm{8-7};
371 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
372 string opc, string asm, list<dag> pattern>
373 : T2sI<oops, iops, itin, opc, asm, pattern> {
378 let Inst{11-8} = Rd{3-0};
379 let Inst{19-16} = Rn{3-0};
380 let Inst{3-0} = ShiftedRm{3-0};
381 let Inst{5-4} = ShiftedRm{6-5};
382 let Inst{14-12} = ShiftedRm{11-9};
383 let Inst{7-6} = ShiftedRm{8-7};
386 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
387 string opc, string asm, list<dag> pattern>
388 : T2I<oops, iops, itin, opc, asm, pattern> {
394 let Inst{11-8} = Rd{3-0};
395 let Inst{19-16} = Rn{3-0};
396 let Inst{3-0} = Rm{3-0};
397 let Inst{15-12} = Ra{3-0};
401 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
402 /// unary operation that produces a value. These are predicable and can be
403 /// changed to modify CPSR.
404 multiclass T2I_un_irs<bits<4> opcod, string opc,
405 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
406 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
408 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
410 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
411 let isAsCheapAsAMove = Cheap;
412 let isReMaterializable = ReMat;
413 let Inst{31-27} = 0b11110;
415 let Inst{24-21} = opcod;
416 let Inst{20} = ?; // The S bit.
417 let Inst{19-16} = 0b1111; // Rn
421 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
423 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
424 let Inst{31-27} = 0b11101;
425 let Inst{26-25} = 0b01;
426 let Inst{24-21} = opcod;
427 let Inst{20} = ?; // The S bit.
428 let Inst{19-16} = 0b1111; // Rn
429 let Inst{14-12} = 0b000; // imm3
430 let Inst{7-6} = 0b00; // imm2
431 let Inst{5-4} = 0b00; // type
434 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
435 opc, ".w\t$Rd, $ShiftedRm",
436 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
437 let Inst{31-27} = 0b11101;
438 let Inst{26-25} = 0b01;
439 let Inst{24-21} = opcod;
440 let Inst{20} = ?; // The S bit.
441 let Inst{19-16} = 0b1111; // Rn
445 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
446 /// binary operation that produces a value. These are predicable and can be
447 /// changed to modify CPSR.
448 multiclass T2I_bin_irs<bits<4> opcod, string opc,
449 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
450 PatFrag opnode, bit Commutable = 0, string wide = ""> {
452 def ri : T2sTwoRegImm<
453 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
454 opc, "\t$Rd, $Rn, $imm",
455 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
456 let Inst{31-27} = 0b11110;
458 let Inst{24-21} = opcod;
459 let Inst{20} = ?; // The S bit.
463 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
464 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
465 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
466 let isCommutable = Commutable;
467 let Inst{31-27} = 0b11101;
468 let Inst{26-25} = 0b01;
469 let Inst{24-21} = opcod;
470 let Inst{20} = ?; // The S bit.
471 let Inst{14-12} = 0b000; // imm3
472 let Inst{7-6} = 0b00; // imm2
473 let Inst{5-4} = 0b00; // type
476 def rs : T2sTwoRegShiftedReg<
477 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
478 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
479 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
480 let Inst{31-27} = 0b11101;
481 let Inst{26-25} = 0b01;
482 let Inst{24-21} = opcod;
483 let Inst{20} = ?; // The S bit.
487 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
488 // the ".w" prefix to indicate that they are wide.
489 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
490 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
491 PatFrag opnode, bit Commutable = 0> :
492 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w">;
494 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
495 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
496 /// it is equivalent to the T2I_bin_irs counterpart.
497 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
499 def ri : T2sTwoRegImm<
500 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
501 opc, ".w\t$Rd, $Rn, $imm",
502 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
503 let Inst{31-27} = 0b11110;
505 let Inst{24-21} = opcod;
506 let Inst{20} = ?; // The S bit.
510 def rr : T2sThreeReg<
511 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
512 opc, "\t$Rd, $Rn, $Rm",
513 [/* For disassembly only; pattern left blank */]> {
514 let Inst{31-27} = 0b11101;
515 let Inst{26-25} = 0b01;
516 let Inst{24-21} = opcod;
517 let Inst{20} = ?; // The S bit.
518 let Inst{14-12} = 0b000; // imm3
519 let Inst{7-6} = 0b00; // imm2
520 let Inst{5-4} = 0b00; // type
523 def rs : T2sTwoRegShiftedReg<
524 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
525 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
526 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
527 let Inst{31-27} = 0b11101;
528 let Inst{26-25} = 0b01;
529 let Inst{24-21} = opcod;
530 let Inst{20} = ?; // The S bit.
534 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
535 /// instruction modifies the CPSR register.
536 let Defs = [CPSR] in {
537 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
538 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
539 PatFrag opnode, bit Commutable = 0> {
541 def ri : T2TwoRegImm<
542 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
543 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
544 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
545 let Inst{31-27} = 0b11110;
547 let Inst{24-21} = opcod;
548 let Inst{20} = 1; // The S bit.
553 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
554 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $Rm",
555 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
556 let isCommutable = Commutable;
557 let Inst{31-27} = 0b11101;
558 let Inst{26-25} = 0b01;
559 let Inst{24-21} = opcod;
560 let Inst{20} = 1; // The S bit.
561 let Inst{14-12} = 0b000; // imm3
562 let Inst{7-6} = 0b00; // imm2
563 let Inst{5-4} = 0b00; // type
566 def rs : T2TwoRegShiftedReg<
567 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
568 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $ShiftedRm",
569 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
570 let Inst{31-27} = 0b11101;
571 let Inst{26-25} = 0b01;
572 let Inst{24-21} = opcod;
573 let Inst{20} = 1; // The S bit.
578 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
579 /// patterns for a binary operation that produces a value.
580 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
581 bit Commutable = 0> {
583 // The register-immediate version is re-materializable. This is useful
584 // in particular for taking the address of a local.
585 let isReMaterializable = 1 in {
586 def ri : T2sTwoRegImm<
587 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
588 opc, ".w\t$Rd, $Rn, $imm",
589 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
590 let Inst{31-27} = 0b11110;
593 let Inst{23-21} = op23_21;
594 let Inst{20} = 0; // The S bit.
599 def ri12 : T2TwoRegImm<
600 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
601 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
602 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
603 let Inst{31-27} = 0b11110;
606 let Inst{23-21} = op23_21;
607 let Inst{20} = 0; // The S bit.
611 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), IIC_iALUr,
612 opc, ".w\t$Rd, $Rn, $Rm",
613 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
614 let isCommutable = Commutable;
615 let Inst{31-27} = 0b11101;
616 let Inst{26-25} = 0b01;
618 let Inst{23-21} = op23_21;
619 let Inst{20} = 0; // The S bit.
620 let Inst{14-12} = 0b000; // imm3
621 let Inst{7-6} = 0b00; // imm2
622 let Inst{5-4} = 0b00; // type
625 def rs : T2sTwoRegShiftedReg<
626 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
627 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
628 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
629 let Inst{31-27} = 0b11101;
630 let Inst{26-25} = 0b01;
632 let Inst{23-21} = op23_21;
633 let Inst{20} = 0; // The S bit.
637 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
638 /// for a binary operation that produces a value and use the carry
639 /// bit. It's not predicable.
640 let Uses = [CPSR] in {
641 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
642 bit Commutable = 0> {
644 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
645 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
646 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
647 Requires<[IsThumb2]> {
648 let Inst{31-27} = 0b11110;
650 let Inst{24-21} = opcod;
651 let Inst{20} = 0; // The S bit.
655 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
656 opc, ".w\t$Rd, $Rn, $Rm",
657 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
658 Requires<[IsThumb2]> {
659 let isCommutable = Commutable;
660 let Inst{31-27} = 0b11101;
661 let Inst{26-25} = 0b01;
662 let Inst{24-21} = opcod;
663 let Inst{20} = 0; // The S bit.
664 let Inst{14-12} = 0b000; // imm3
665 let Inst{7-6} = 0b00; // imm2
666 let Inst{5-4} = 0b00; // type
669 def rs : T2sTwoRegShiftedReg<
670 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
671 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
672 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
673 Requires<[IsThumb2]> {
674 let Inst{31-27} = 0b11101;
675 let Inst{26-25} = 0b01;
676 let Inst{24-21} = opcod;
677 let Inst{20} = 0; // The S bit.
681 // Carry setting variants
682 let Defs = [CPSR] in {
683 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
684 bit Commutable = 0> {
686 def ri : T2sTwoRegImm<
687 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
688 opc, "\t$Rd, $Rn, $imm",
689 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
690 Requires<[IsThumb2]> {
691 let Inst{31-27} = 0b11110;
693 let Inst{24-21} = opcod;
694 let Inst{20} = 1; // The S bit.
698 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
699 opc, ".w\t$Rd, $Rn, $Rm",
700 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
701 Requires<[IsThumb2]> {
702 let isCommutable = Commutable;
703 let Inst{31-27} = 0b11101;
704 let Inst{26-25} = 0b01;
705 let Inst{24-21} = opcod;
706 let Inst{20} = 1; // The S bit.
707 let Inst{14-12} = 0b000; // imm3
708 let Inst{7-6} = 0b00; // imm2
709 let Inst{5-4} = 0b00; // type
712 def rs : T2sTwoRegShiftedReg<
713 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
714 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
715 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
716 Requires<[IsThumb2]> {
717 let Inst{31-27} = 0b11101;
718 let Inst{26-25} = 0b01;
719 let Inst{24-21} = opcod;
720 let Inst{20} = 1; // The S bit.
726 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
727 /// version is not needed since this is only for codegen.
728 let Defs = [CPSR] in {
729 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
731 def ri : T2TwoRegImm<
732 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
733 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
734 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
735 let Inst{31-27} = 0b11110;
737 let Inst{24-21} = opcod;
738 let Inst{20} = 1; // The S bit.
742 def rs : T2TwoRegShiftedReg<
743 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
744 IIC_iALUsi, !strconcat(opc, "s"), "\t$Rd, $Rn, $ShiftedRm",
745 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
746 let Inst{31-27} = 0b11101;
747 let Inst{26-25} = 0b01;
748 let Inst{24-21} = opcod;
749 let Inst{20} = 1; // The S bit.
754 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
755 // rotate operation that produces a value.
756 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
758 def ri : T2sTwoRegShiftImm<
759 (outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$imm), IIC_iMOVsi,
760 opc, ".w\t$Rd, $Rm, $imm",
761 [(set rGPR:$Rd, (opnode rGPR:$Rm, imm1_31:$imm))]> {
762 let Inst{31-27} = 0b11101;
763 let Inst{26-21} = 0b010010;
764 let Inst{19-16} = 0b1111; // Rn
765 let Inst{5-4} = opcod;
768 def rr : T2sThreeReg<
769 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
770 opc, ".w\t$Rd, $Rn, $Rm",
771 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
772 let Inst{31-27} = 0b11111;
773 let Inst{26-23} = 0b0100;
774 let Inst{22-21} = opcod;
775 let Inst{15-12} = 0b1111;
776 let Inst{7-4} = 0b0000;
780 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
781 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
782 /// a explicit result, only implicitly set CPSR.
783 let isCompare = 1, Defs = [CPSR] in {
784 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
785 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
788 def ri : T2OneRegCmpImm<
789 (outs), (ins GPR:$Rn, t2_so_imm:$imm), iii,
790 opc, ".w\t$Rn, $imm",
791 [(opnode GPR:$Rn, t2_so_imm:$imm)]> {
792 let Inst{31-27} = 0b11110;
794 let Inst{24-21} = opcod;
795 let Inst{20} = 1; // The S bit.
797 let Inst{11-8} = 0b1111; // Rd
800 def rr : T2TwoRegCmp<
801 (outs), (ins GPR:$lhs, rGPR:$rhs), iir,
802 opc, ".w\t$lhs, $rhs",
803 [(opnode GPR:$lhs, rGPR:$rhs)]> {
804 let Inst{31-27} = 0b11101;
805 let Inst{26-25} = 0b01;
806 let Inst{24-21} = opcod;
807 let Inst{20} = 1; // The S bit.
808 let Inst{14-12} = 0b000; // imm3
809 let Inst{11-8} = 0b1111; // Rd
810 let Inst{7-6} = 0b00; // imm2
811 let Inst{5-4} = 0b00; // type
814 def rs : T2OneRegCmpShiftedReg<
815 (outs), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
816 opc, ".w\t$Rn, $ShiftedRm",
817 [(opnode GPR:$Rn, t2_so_reg:$ShiftedRm)]> {
818 let Inst{31-27} = 0b11101;
819 let Inst{26-25} = 0b01;
820 let Inst{24-21} = opcod;
821 let Inst{20} = 1; // The S bit.
822 let Inst{11-8} = 0b1111; // Rd
827 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
828 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
829 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
830 def i12 : T2Ii12<(outs GPR:$Rt), (ins t2addrmode_imm12:$addr), iii,
831 opc, ".w\t$Rt, $addr",
832 [(set GPR:$Rt, (opnode t2addrmode_imm12:$addr))]> {
833 let Inst{31-27} = 0b11111;
834 let Inst{26-25} = 0b00;
835 let Inst{24} = signed;
837 let Inst{22-21} = opcod;
838 let Inst{20} = 1; // load
841 let Inst{15-12} = Rt{3-0};
844 let Inst{19-16} = addr{16-13}; // Rn
845 let Inst{23} = addr{12}; // U
846 let Inst{11-0} = addr{11-0}; // imm
848 def i8 : T2Ii8 <(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), iii,
850 [(set GPR:$Rt, (opnode t2addrmode_imm8:$addr))]> {
851 let Inst{31-27} = 0b11111;
852 let Inst{26-25} = 0b00;
853 let Inst{24} = signed;
855 let Inst{22-21} = opcod;
856 let Inst{20} = 1; // load
858 // Offset: index==TRUE, wback==FALSE
859 let Inst{10} = 1; // The P bit.
860 let Inst{8} = 0; // The W bit.
863 let Inst{15-12} = Rt{3-0};
866 let Inst{19-16} = addr{12-9}; // Rn
867 let Inst{9} = addr{8}; // U
868 let Inst{7-0} = addr{7-0}; // imm
870 def s : T2Iso <(outs GPR:$Rt), (ins t2addrmode_so_reg:$addr), iis,
871 opc, ".w\t$Rt, $addr",
872 [(set GPR:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
873 let Inst{31-27} = 0b11111;
874 let Inst{26-25} = 0b00;
875 let Inst{24} = signed;
877 let Inst{22-21} = opcod;
878 let Inst{20} = 1; // load
879 let Inst{11-6} = 0b000000;
882 let Inst{15-12} = Rt{3-0};
885 let Inst{19-16} = addr{9-6}; // Rn
886 let Inst{3-0} = addr{5-2}; // Rm
887 let Inst{5-4} = addr{1-0}; // imm
890 // FIXME: Is the pci variant actually needed?
891 def pci : T2Ipc <(outs GPR:$Rt), (ins i32imm:$addr), iii,
892 opc, ".w\t$Rt, $addr",
893 [(set GPR:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
894 let isReMaterializable = 1;
895 let Inst{31-27} = 0b11111;
896 let Inst{26-25} = 0b00;
897 let Inst{24} = signed;
898 let Inst{23} = ?; // add = (U == '1')
899 let Inst{22-21} = opcod;
900 let Inst{20} = 1; // load
901 let Inst{19-16} = 0b1111; // Rn
905 let Inst{15-12} = Rt{3-0};
906 let Inst{11-0} = addr{11-0};
910 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
911 multiclass T2I_st<bits<2> opcod, string opc,
912 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
913 def i12 : T2Ii12<(outs), (ins GPR:$Rt, t2addrmode_imm12:$addr), iii,
914 opc, ".w\t$Rt, $addr",
915 [(opnode GPR:$Rt, t2addrmode_imm12:$addr)]> {
916 let Inst{31-27} = 0b11111;
917 let Inst{26-23} = 0b0001;
918 let Inst{22-21} = opcod;
919 let Inst{20} = 0; // !load
922 let Inst{15-12} = Rt{3-0};
925 let Inst{19-16} = addr{16-13}; // Rn
926 let Inst{23} = addr{12}; // U
927 let Inst{11-0} = addr{11-0}; // imm
929 def i8 : T2Ii8 <(outs), (ins GPR:$Rt, t2addrmode_imm8:$addr), iii,
931 [(opnode GPR:$Rt, t2addrmode_imm8:$addr)]> {
932 let Inst{31-27} = 0b11111;
933 let Inst{26-23} = 0b0000;
934 let Inst{22-21} = opcod;
935 let Inst{20} = 0; // !load
937 // Offset: index==TRUE, wback==FALSE
938 let Inst{10} = 1; // The P bit.
939 let Inst{8} = 0; // The W bit.
942 let Inst{15-12} = Rt{3-0};
945 let Inst{19-16} = addr{12-9}; // Rn
946 let Inst{9} = addr{8}; // U
947 let Inst{7-0} = addr{7-0}; // imm
949 def s : T2Iso <(outs), (ins GPR:$Rt, t2addrmode_so_reg:$addr), iis,
950 opc, ".w\t$Rt, $addr",
951 [(opnode GPR:$Rt, t2addrmode_so_reg:$addr)]> {
952 let Inst{31-27} = 0b11111;
953 let Inst{26-23} = 0b0000;
954 let Inst{22-21} = opcod;
955 let Inst{20} = 0; // !load
956 let Inst{11-6} = 0b000000;
959 let Inst{15-12} = Rt{3-0};
962 let Inst{19-16} = addr{9-6}; // Rn
963 let Inst{3-0} = addr{5-2}; // Rm
964 let Inst{5-4} = addr{1-0}; // imm
968 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
969 /// register and one whose operand is a register rotated by 8/16/24.
970 multiclass T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> {
971 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
973 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
974 let Inst{31-27} = 0b11111;
975 let Inst{26-23} = 0b0100;
976 let Inst{22-20} = opcod;
977 let Inst{19-16} = 0b1111; // Rn
978 let Inst{15-12} = 0b1111;
980 let Inst{5-4} = 0b00; // rotate
982 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
983 opc, ".w\t$Rd, $Rm, ror $rot",
984 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]> {
985 let Inst{31-27} = 0b11111;
986 let Inst{26-23} = 0b0100;
987 let Inst{22-20} = opcod;
988 let Inst{19-16} = 0b1111; // Rn
989 let Inst{15-12} = 0b1111;
993 let Inst{5-4} = rot{1-0}; // rotate
997 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
998 multiclass T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
999 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1001 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>,
1002 Requires<[HasT2ExtractPack, IsThumb2]> {
1003 let Inst{31-27} = 0b11111;
1004 let Inst{26-23} = 0b0100;
1005 let Inst{22-20} = opcod;
1006 let Inst{19-16} = 0b1111; // Rn
1007 let Inst{15-12} = 0b1111;
1009 let Inst{5-4} = 0b00; // rotate
1011 def r_rot : T2TwoReg<(outs rGPR:$dst), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1012 opc, "\t$dst, $Rm, ror $rot",
1013 [(set rGPR:$dst, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1014 Requires<[HasT2ExtractPack, IsThumb2]> {
1015 let Inst{31-27} = 0b11111;
1016 let Inst{26-23} = 0b0100;
1017 let Inst{22-20} = opcod;
1018 let Inst{19-16} = 0b1111; // Rn
1019 let Inst{15-12} = 0b1111;
1023 let Inst{5-4} = rot{1-0}; // rotate
1027 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1029 multiclass T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> {
1030 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1031 opc, "\t$Rd, $Rm", []> {
1032 let Inst{31-27} = 0b11111;
1033 let Inst{26-23} = 0b0100;
1034 let Inst{22-20} = opcod;
1035 let Inst{19-16} = 0b1111; // Rn
1036 let Inst{15-12} = 0b1111;
1038 let Inst{5-4} = 0b00; // rotate
1040 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1041 opc, "\t$Rd, $Rm, ror $rot", []> {
1042 let Inst{31-27} = 0b11111;
1043 let Inst{26-23} = 0b0100;
1044 let Inst{22-20} = opcod;
1045 let Inst{19-16} = 0b1111; // Rn
1046 let Inst{15-12} = 0b1111;
1050 let Inst{5-4} = rot{1-0}; // rotate
1054 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1055 /// register and one whose operand is a register rotated by 8/16/24.
1056 multiclass T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> {
1057 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1058 opc, "\t$Rd, $Rn, $Rm",
1059 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
1060 Requires<[HasT2ExtractPack, IsThumb2]> {
1061 let Inst{31-27} = 0b11111;
1062 let Inst{26-23} = 0b0100;
1063 let Inst{22-20} = opcod;
1064 let Inst{15-12} = 0b1111;
1066 let Inst{5-4} = 0b00; // rotate
1068 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1069 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot",
1070 [(set rGPR:$Rd, (opnode rGPR:$Rn,
1071 (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1072 Requires<[HasT2ExtractPack, IsThumb2]> {
1073 let Inst{31-27} = 0b11111;
1074 let Inst{26-23} = 0b0100;
1075 let Inst{22-20} = opcod;
1076 let Inst{15-12} = 0b1111;
1080 let Inst{5-4} = rot{1-0}; // rotate
1084 // DO variant - disassembly only, no pattern
1086 multiclass T2I_exta_rrot_DO<bits<3> opcod, string opc> {
1087 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1088 opc, "\t$Rd, $Rn, $Rm", []> {
1089 let Inst{31-27} = 0b11111;
1090 let Inst{26-23} = 0b0100;
1091 let Inst{22-20} = opcod;
1092 let Inst{15-12} = 0b1111;
1094 let Inst{5-4} = 0b00; // rotate
1096 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1097 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot", []> {
1098 let Inst{31-27} = 0b11111;
1099 let Inst{26-23} = 0b0100;
1100 let Inst{22-20} = opcod;
1101 let Inst{15-12} = 0b1111;
1105 let Inst{5-4} = rot{1-0}; // rotate
1109 //===----------------------------------------------------------------------===//
1111 //===----------------------------------------------------------------------===//
1113 //===----------------------------------------------------------------------===//
1114 // Miscellaneous Instructions.
1117 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1118 string asm, list<dag> pattern>
1119 : T2XI<oops, iops, itin, asm, pattern> {
1123 let Inst{11-8} = Rd{3-0};
1124 let Inst{26} = label{11};
1125 let Inst{14-12} = label{10-8};
1126 let Inst{7-0} = label{7-0};
1129 // LEApcrel - Load a pc-relative address into a register without offending the
1131 let neverHasSideEffects = 1 in {
1132 let isReMaterializable = 1 in
1133 def t2LEApcrel : T2PCOneRegImm<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p), IIC_iALUi,
1134 "adr${p}.w\t$Rd, #$label", []> {
1135 let Inst{31-27} = 0b11110;
1136 let Inst{25-24} = 0b10;
1137 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1140 let Inst{19-16} = 0b1111; // Rn
1145 } // neverHasSideEffects
1146 def t2LEApcrelJT : T2PCOneRegImm<(outs rGPR:$Rd),
1147 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
1148 "adr${p}.w\t$Rd, #${label}_${id}", []> {
1149 let Inst{31-27} = 0b11110;
1150 let Inst{25-24} = 0b10;
1151 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1154 let Inst{19-16} = 0b1111; // Rn
1158 // ADD r, sp, {so_imm|i12}
1159 def t2ADDrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1160 IIC_iALUi, "add", ".w\t$Rd, $sp, $imm", []> {
1161 let Inst{31-27} = 0b11110;
1163 let Inst{24-21} = 0b1000;
1164 let Inst{20} = ?; // The S bit.
1165 let Inst{19-16} = 0b1101; // Rn = sp
1168 def t2ADDrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1169 IIC_iALUi, "addw", "\t$Rd, $sp, $imm", []> {
1170 let Inst{31-27} = 0b11110;
1172 let Inst{24-21} = 0b0000;
1173 let Inst{20} = 0; // The S bit.
1174 let Inst{19-16} = 0b1101; // Rn = sp
1178 // ADD r, sp, so_reg
1179 def t2ADDrSPs : T2sTwoRegShiftedReg<
1180 (outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$ShiftedRm),
1181 IIC_iALUsi, "add", ".w\t$Rd, $sp, $ShiftedRm", []> {
1182 let Inst{31-27} = 0b11101;
1183 let Inst{26-25} = 0b01;
1184 let Inst{24-21} = 0b1000;
1185 let Inst{20} = ?; // The S bit.
1186 let Inst{19-16} = 0b1101; // Rn = sp
1190 // SUB r, sp, {so_imm|i12}
1191 def t2SUBrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1192 IIC_iALUi, "sub", ".w\t$Rd, $sp, $imm", []> {
1193 let Inst{31-27} = 0b11110;
1195 let Inst{24-21} = 0b1101;
1196 let Inst{20} = ?; // The S bit.
1197 let Inst{19-16} = 0b1101; // Rn = sp
1200 def t2SUBrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1201 IIC_iALUi, "subw", "\t$Rd, $sp, $imm", []> {
1202 let Inst{31-27} = 0b11110;
1204 let Inst{24-21} = 0b0101;
1205 let Inst{20} = 0; // The S bit.
1206 let Inst{19-16} = 0b1101; // Rn = sp
1210 // SUB r, sp, so_reg
1211 def t2SUBrSPs : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$imm),
1213 "sub", "\t$Rd, $sp, $imm", []> {
1214 let Inst{31-27} = 0b11101;
1215 let Inst{26-25} = 0b01;
1216 let Inst{24-21} = 0b1101;
1217 let Inst{20} = ?; // The S bit.
1218 let Inst{19-16} = 0b1101; // Rn = sp
1222 // Signed and unsigned division on v7-M
1223 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1224 "sdiv", "\t$Rd, $Rn, $Rm",
1225 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
1226 Requires<[HasDivide, IsThumb2]> {
1227 let Inst{31-27} = 0b11111;
1228 let Inst{26-21} = 0b011100;
1230 let Inst{15-12} = 0b1111;
1231 let Inst{7-4} = 0b1111;
1234 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1235 "udiv", "\t$Rd, $Rn, $Rm",
1236 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
1237 Requires<[HasDivide, IsThumb2]> {
1238 let Inst{31-27} = 0b11111;
1239 let Inst{26-21} = 0b011101;
1241 let Inst{15-12} = 0b1111;
1242 let Inst{7-4} = 0b1111;
1245 //===----------------------------------------------------------------------===//
1246 // Load / store Instructions.
1250 let canFoldAsLoad = 1, isReMaterializable = 1 in
1251 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
1252 UnOpFrag<(load node:$Src)>>;
1254 // Loads with zero extension
1255 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1256 UnOpFrag<(zextloadi16 node:$Src)>>;
1257 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1258 UnOpFrag<(zextloadi8 node:$Src)>>;
1260 // Loads with sign extension
1261 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1262 UnOpFrag<(sextloadi16 node:$Src)>>;
1263 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1264 UnOpFrag<(sextloadi8 node:$Src)>>;
1266 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1,
1267 isCodeGenOnly = 1 in { // $dst doesn't exist in asmstring?
1269 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
1270 (ins t2addrmode_imm8s4:$addr),
1271 IIC_iLoad_d_i, "ldrd", "\t$dst1, $addr", []>;
1272 def t2LDRDpci : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
1273 (ins i32imm:$addr), IIC_iLoad_d_i,
1274 "ldrd", "\t$dst1, $addr", []> {
1275 let Inst{19-16} = 0b1111; // Rn
1277 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1279 // zextload i1 -> zextload i8
1280 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1281 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1282 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
1283 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1284 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1285 (t2LDRBs t2addrmode_so_reg:$addr)>;
1286 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1287 (t2LDRBpci tconstpool:$addr)>;
1289 // extload -> zextload
1290 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1292 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1293 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1294 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
1295 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1296 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1297 (t2LDRBs t2addrmode_so_reg:$addr)>;
1298 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1299 (t2LDRBpci tconstpool:$addr)>;
1301 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1302 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1303 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
1304 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1305 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1306 (t2LDRBs t2addrmode_so_reg:$addr)>;
1307 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1308 (t2LDRBpci tconstpool:$addr)>;
1310 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1311 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1312 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
1313 (t2LDRHi8 t2addrmode_imm8:$addr)>;
1314 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1315 (t2LDRHs t2addrmode_so_reg:$addr)>;
1316 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1317 (t2LDRHpci tconstpool:$addr)>;
1319 // FIXME: The destination register of the loads and stores can't be PC, but
1320 // can be SP. We need another regclass (similar to rGPR) to represent
1321 // that. Not a pressing issue since these are selected manually,
1326 class T2Iidxld<bit signed, bits<2> opcod, bit pre,
1328 AddrMode am, IndexMode im, InstrItinClass itin,
1329 string opc, string asm, string cstr, list<dag> pattern>
1330 : T2Iidxldst<signed, opcod, 1, pre, oops,
1331 iops, am,im,itin, opc, asm, cstr, pattern>;
1332 class T2Iidxst<bit signed, bits<2> opcod, bit pre,
1334 AddrMode am, IndexMode im, InstrItinClass itin,
1335 string opc, string asm, string cstr, list<dag> pattern>
1336 : T2Iidxldst<signed, opcod, 0, pre, oops,
1337 iops, am,im,itin, opc, asm, cstr, pattern>;
1339 let mayLoad = 1, neverHasSideEffects = 1 in {
1340 def t2LDR_PRE : T2Iidxld<0, 0b10, 1, (outs GPR:$Rt, GPR:$Rn),
1341 (ins t2addrmode_imm8:$addr),
1342 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1343 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1346 def t2LDR_POST : T2Iidxld<0, 0b10, 0, (outs GPR:$Rt, GPR:$Rn),
1347 (ins GPR:$base, t2am_imm8_offset:$offset),
1348 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1349 "ldr", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1352 def t2LDRB_PRE : T2Iidxld<0, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1353 (ins t2addrmode_imm8:$addr),
1354 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1355 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1357 def t2LDRB_POST : T2Iidxld<0, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1358 (ins GPR:$base, t2am_imm8_offset:$offset),
1359 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1360 "ldrb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1363 def t2LDRH_PRE : T2Iidxld<0, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1364 (ins t2addrmode_imm8:$addr),
1365 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1366 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1368 def t2LDRH_POST : T2Iidxld<0, 0b01, 0, (outs GPR:$Rt, GPR:$Rn),
1369 (ins GPR:$base, t2am_imm8_offset:$offset),
1370 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1371 "ldrh", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1374 def t2LDRSB_PRE : T2Iidxld<1, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1375 (ins t2addrmode_imm8:$addr),
1376 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1377 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1379 def t2LDRSB_POST : T2Iidxld<1, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1380 (ins GPR:$base, t2am_imm8_offset:$offset),
1381 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1382 "ldrsb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1385 def t2LDRSH_PRE : T2Iidxld<1, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1386 (ins t2addrmode_imm8:$addr),
1387 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1388 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1390 def t2LDRSH_POST : T2Iidxld<1, 0b01, 0, (outs GPR:$dst, GPR:$Rn),
1391 (ins GPR:$base, t2am_imm8_offset:$offset),
1392 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1393 "ldrsh", "\t$dst, [$Rn], $offset", "$base = $Rn",
1395 } // mayLoad = 1, neverHasSideEffects = 1
1397 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1398 // for disassembly only.
1399 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1400 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1401 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1402 "\t$Rt, $addr", []> {
1403 let Inst{31-27} = 0b11111;
1404 let Inst{26-25} = 0b00;
1405 let Inst{24} = signed;
1407 let Inst{22-21} = type;
1408 let Inst{20} = 1; // load
1410 let Inst{10-8} = 0b110; // PUW.
1414 let Inst{15-12} = Rt{3-0};
1415 let Inst{19-16} = addr{12-9};
1416 let Inst{7-0} = addr{7-0};
1419 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1420 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1421 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1422 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1423 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1426 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1427 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1428 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1429 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1430 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1431 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1434 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1,
1435 isCodeGenOnly = 1 in // $src2 doesn't exist in asm string
1436 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1437 (ins GPR:$src1, GPR:$src2, t2addrmode_imm8s4:$addr),
1438 IIC_iStore_d_r, "strd", "\t$src1, $addr", []>;
1441 def t2STR_PRE : T2Iidxst<0, 0b10, 1, (outs GPR:$base_wb),
1442 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1443 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1444 "str", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1446 (pre_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1448 def t2STR_POST : T2Iidxst<0, 0b10, 0, (outs GPR:$base_wb),
1449 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1450 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1451 "str", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1453 (post_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1455 def t2STRH_PRE : T2Iidxst<0, 0b01, 1, (outs GPR:$base_wb),
1456 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1457 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1458 "strh", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1460 (pre_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1462 def t2STRH_POST : T2Iidxst<0, 0b01, 0, (outs GPR:$base_wb),
1463 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1464 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1465 "strh", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1467 (post_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1469 def t2STRB_PRE : T2Iidxst<0, 0b00, 1, (outs GPR:$base_wb),
1470 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1471 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1472 "strb", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1474 (pre_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1476 def t2STRB_POST : T2Iidxst<0, 0b00, 0, (outs GPR:$base_wb),
1477 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1478 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1479 "strb", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1481 (post_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1483 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1485 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1486 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1487 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1488 "\t$Rt, $addr", []> {
1489 let Inst{31-27} = 0b11111;
1490 let Inst{26-25} = 0b00;
1491 let Inst{24} = 0; // not signed
1493 let Inst{22-21} = type;
1494 let Inst{20} = 0; // store
1496 let Inst{10-8} = 0b110; // PUW
1500 let Inst{15-12} = Rt{3-0};
1501 let Inst{19-16} = addr{12-9};
1502 let Inst{7-0} = addr{7-0};
1505 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1506 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1507 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1509 // ldrd / strd pre / post variants
1510 // For disassembly only.
1512 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1513 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1514 "ldrd", "\t$dst1, $dst2, [$base, $imm]!", []>;
1516 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1517 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1518 "ldrd", "\t$dst1, $dst2, [$base], $imm", []>;
1520 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1521 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1522 IIC_iStore_d_ru, "strd", "\t$src1, $src2, [$base, $imm]!", []>;
1524 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1525 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1526 IIC_iStore_d_ru, "strd", "\t$src1, $src2, [$base], $imm", []>;
1528 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1529 // data/instruction access. These are for disassembly only.
1530 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1531 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1532 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1534 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1536 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1537 let Inst{31-25} = 0b1111100;
1538 let Inst{24} = instr;
1540 let Inst{21} = write;
1542 let Inst{15-12} = 0b1111;
1545 let Inst{19-16} = addr{16-13}; // Rn
1546 let Inst{23} = addr{12}; // U
1547 let Inst{11-0} = addr{11-0}; // imm12
1550 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1552 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1553 let Inst{31-25} = 0b1111100;
1554 let Inst{24} = instr;
1555 let Inst{23} = 0; // U = 0
1557 let Inst{21} = write;
1559 let Inst{15-12} = 0b1111;
1560 let Inst{11-8} = 0b1100;
1563 let Inst{19-16} = addr{12-9}; // Rn
1564 let Inst{7-0} = addr{7-0}; // imm8
1567 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1569 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1570 let Inst{31-25} = 0b1111100;
1571 let Inst{24} = instr;
1572 let Inst{23} = 0; // add = TRUE for T1
1574 let Inst{21} = write;
1576 let Inst{15-12} = 0b1111;
1577 let Inst{11-6} = 0000000;
1580 let Inst{19-16} = addr{9-6}; // Rn
1581 let Inst{3-0} = addr{5-2}; // Rm
1582 let Inst{5-4} = addr{1-0}; // imm2
1586 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1587 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1588 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1590 //===----------------------------------------------------------------------===//
1591 // Load / store multiple Instructions.
1594 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1595 InstrItinClass itin_upd, bit L_bit> {
1597 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1598 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1602 let Inst{31-27} = 0b11101;
1603 let Inst{26-25} = 0b00;
1604 let Inst{24-23} = 0b01; // Increment After
1606 let Inst{21} = 0; // No writeback
1607 let Inst{20} = L_bit;
1608 let Inst{19-16} = Rn;
1609 let Inst{15-0} = regs;
1612 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1613 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1617 let Inst{31-27} = 0b11101;
1618 let Inst{26-25} = 0b00;
1619 let Inst{24-23} = 0b01; // Increment After
1621 let Inst{21} = 1; // Writeback
1622 let Inst{20} = L_bit;
1623 let Inst{19-16} = Rn;
1624 let Inst{15-0} = regs;
1627 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1628 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1632 let Inst{31-27} = 0b11101;
1633 let Inst{26-25} = 0b00;
1634 let Inst{24-23} = 0b10; // Decrement Before
1636 let Inst{21} = 0; // No writeback
1637 let Inst{20} = L_bit;
1638 let Inst{19-16} = Rn;
1639 let Inst{15-0} = regs;
1642 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1643 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1647 let Inst{31-27} = 0b11101;
1648 let Inst{26-25} = 0b00;
1649 let Inst{24-23} = 0b10; // Decrement Before
1651 let Inst{21} = 1; // Writeback
1652 let Inst{20} = L_bit;
1653 let Inst{19-16} = Rn;
1654 let Inst{15-0} = regs;
1658 let neverHasSideEffects = 1 in {
1660 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1661 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1663 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1664 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1666 } // neverHasSideEffects
1669 //===----------------------------------------------------------------------===//
1670 // Move Instructions.
1673 let neverHasSideEffects = 1 in
1674 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1675 "mov", ".w\t$Rd, $Rm", []> {
1676 let Inst{31-27} = 0b11101;
1677 let Inst{26-25} = 0b01;
1678 let Inst{24-21} = 0b0010;
1679 let Inst{20} = ?; // The S bit.
1680 let Inst{19-16} = 0b1111; // Rn
1681 let Inst{14-12} = 0b000;
1682 let Inst{7-4} = 0b0000;
1685 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1686 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1687 AddedComplexity = 1 in
1688 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1689 "mov", ".w\t$Rd, $imm",
1690 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1691 let Inst{31-27} = 0b11110;
1693 let Inst{24-21} = 0b0010;
1694 let Inst{20} = ?; // The S bit.
1695 let Inst{19-16} = 0b1111; // Rn
1699 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1700 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins i32imm:$imm), IIC_iMOVi,
1701 "movw", "\t$Rd, $imm",
1702 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1703 let Inst{31-27} = 0b11110;
1705 let Inst{24-21} = 0b0010;
1706 let Inst{20} = 0; // The S bit.
1712 let Inst{11-8} = Rd{3-0};
1713 let Inst{19-16} = imm{15-12};
1714 let Inst{26} = imm{11};
1715 let Inst{14-12} = imm{10-8};
1716 let Inst{7-0} = imm{7-0};
1719 let Constraints = "$src = $Rd" in
1720 def t2MOVTi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1721 "movt", "\t$Rd, $imm",
1723 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1724 let Inst{31-27} = 0b11110;
1726 let Inst{24-21} = 0b0110;
1727 let Inst{20} = 0; // The S bit.
1733 let Inst{11-8} = Rd{3-0};
1734 let Inst{19-16} = imm{15-12};
1735 let Inst{26} = imm{11};
1736 let Inst{14-12} = imm{10-8};
1737 let Inst{7-0} = imm{7-0};
1740 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1742 //===----------------------------------------------------------------------===//
1743 // Extend Instructions.
1748 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1749 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1750 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1751 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1752 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1754 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1755 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1756 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1757 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1758 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1760 // TODO: SXT(A){B|H}16 - done for disassembly only
1764 let AddedComplexity = 16 in {
1765 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1766 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1767 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1768 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1769 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1770 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1772 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1773 // The transformation should probably be done as a combiner action
1774 // instead so we can include a check for masking back in the upper
1775 // eight bits of the source into the lower eight bits of the result.
1776 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1777 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1778 // Requires<[HasT2ExtractPack, IsThumb2]>;
1779 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1780 (t2UXTB16r_rot rGPR:$Src, 8)>,
1781 Requires<[HasT2ExtractPack, IsThumb2]>;
1783 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1784 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1785 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1786 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1787 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1790 //===----------------------------------------------------------------------===//
1791 // Arithmetic Instructions.
1794 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1795 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1796 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1797 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1799 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1800 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1801 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1802 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1803 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1804 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1805 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1807 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1808 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1809 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1810 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1811 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1812 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1813 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1814 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1817 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1818 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1819 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1820 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1822 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1823 // The assume-no-carry-in form uses the negation of the input since add/sub
1824 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1825 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1827 // The AddedComplexity preferences the first variant over the others since
1828 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1829 let AddedComplexity = 1 in
1830 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1831 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1832 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1833 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1834 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1835 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1836 let AddedComplexity = 1 in
1837 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1838 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1839 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1840 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1841 // The with-carry-in form matches bitwise not instead of the negation.
1842 // Effectively, the inverse interpretation of the carry flag already accounts
1843 // for part of the negation.
1844 let AddedComplexity = 1 in
1845 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1846 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1847 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1848 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1850 // Select Bytes -- for disassembly only
1852 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1853 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []> {
1854 let Inst{31-27} = 0b11111;
1855 let Inst{26-24} = 0b010;
1857 let Inst{22-20} = 0b010;
1858 let Inst{15-12} = 0b1111;
1860 let Inst{6-4} = 0b000;
1863 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1864 // And Miscellaneous operations -- for disassembly only
1865 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1866 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1867 : T2I<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), NoItinerary, opc,
1868 "\t$Rd, $Rn, $Rm", pat> {
1869 let Inst{31-27} = 0b11111;
1870 let Inst{26-23} = 0b0101;
1871 let Inst{22-20} = op22_20;
1872 let Inst{15-12} = 0b1111;
1873 let Inst{7-4} = op7_4;
1879 let Inst{11-8} = Rd{3-0};
1880 let Inst{19-16} = Rn{3-0};
1881 let Inst{3-0} = Rm{3-0};
1884 // Saturating add/subtract -- for disassembly only
1886 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1887 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))]>;
1888 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1889 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1890 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1891 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1892 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1893 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1894 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1895 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))]>;
1896 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1897 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1898 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1899 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1900 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1901 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1902 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1903 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1905 // Signed/Unsigned add/subtract -- for disassembly only
1907 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1908 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1909 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1910 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1911 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1912 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1913 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1914 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1915 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1916 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1917 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1918 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1920 // Signed/Unsigned halving add/subtract -- for disassembly only
1922 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1923 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1924 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1925 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1926 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1927 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1928 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1929 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1930 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1931 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1932 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1933 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1935 // Helper class for disassembly only
1936 // A6.3.16 & A6.3.17
1937 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1938 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1939 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1940 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1941 let Inst{31-27} = 0b11111;
1942 let Inst{26-24} = 0b011;
1943 let Inst{23} = long;
1944 let Inst{22-20} = op22_20;
1945 let Inst{7-4} = op7_4;
1948 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1949 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1950 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1951 let Inst{31-27} = 0b11111;
1952 let Inst{26-24} = 0b011;
1953 let Inst{23} = long;
1954 let Inst{22-20} = op22_20;
1955 let Inst{7-4} = op7_4;
1958 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1960 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1961 (ins rGPR:$Rn, rGPR:$Rm),
1962 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []> {
1963 let Inst{15-12} = 0b1111;
1965 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1966 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1967 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>;
1969 // Signed/Unsigned saturate -- for disassembly only
1971 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1972 string opc, string asm, list<dag> pattern>
1973 : T2I<oops, iops, itin, opc, asm, pattern> {
1979 let Inst{11-8} = Rd{3-0};
1980 let Inst{19-16} = Rn{3-0};
1981 let Inst{4-0} = sat_imm{4-0};
1982 let Inst{21} = sh{6};
1983 let Inst{14-12} = sh{4-2};
1984 let Inst{7-6} = sh{1-0};
1988 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1989 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1990 [/* For disassembly only; pattern left blank */]> {
1991 let Inst{31-27} = 0b11110;
1992 let Inst{25-22} = 0b1100;
1997 def t2SSAT16: T2SatI<
1998 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
1999 "ssat16", "\t$Rd, $sat_imm, $Rn",
2000 [/* For disassembly only; pattern left blank */]> {
2001 let Inst{31-27} = 0b11110;
2002 let Inst{25-22} = 0b1100;
2005 let Inst{21} = 1; // sh = '1'
2006 let Inst{14-12} = 0b000; // imm3 = '000'
2007 let Inst{7-6} = 0b00; // imm2 = '00'
2011 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
2012 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
2013 [/* For disassembly only; pattern left blank */]> {
2014 let Inst{31-27} = 0b11110;
2015 let Inst{25-22} = 0b1110;
2020 def t2USAT16: T2SatI<
2021 (outs rGPR:$dst), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
2022 "usat16", "\t$dst, $sat_imm, $Rn",
2023 [/* For disassembly only; pattern left blank */]> {
2024 let Inst{31-27} = 0b11110;
2025 let Inst{25-22} = 0b1110;
2028 let Inst{21} = 1; // sh = '1'
2029 let Inst{14-12} = 0b000; // imm3 = '000'
2030 let Inst{7-6} = 0b00; // imm2 = '00'
2033 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2034 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2036 //===----------------------------------------------------------------------===//
2037 // Shift and rotate Instructions.
2040 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2041 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2042 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2043 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2045 let Uses = [CPSR] in {
2046 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2047 "rrx", "\t$Rd, $Rm",
2048 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2049 let Inst{31-27} = 0b11101;
2050 let Inst{26-25} = 0b01;
2051 let Inst{24-21} = 0b0010;
2052 let Inst{20} = ?; // The S bit.
2053 let Inst{19-16} = 0b1111; // Rn
2054 let Inst{14-12} = 0b000;
2055 let Inst{7-4} = 0b0011;
2059 let Defs = [CPSR] in {
2060 def t2MOVsrl_flag : T2TwoRegShiftImm<
2061 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2062 "lsrs", ".w\t$Rd, $Rm, #1",
2063 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2064 let Inst{31-27} = 0b11101;
2065 let Inst{26-25} = 0b01;
2066 let Inst{24-21} = 0b0010;
2067 let Inst{20} = 1; // The S bit.
2068 let Inst{19-16} = 0b1111; // Rn
2069 let Inst{5-4} = 0b01; // Shift type.
2070 // Shift amount = Inst{14-12:7-6} = 1.
2071 let Inst{14-12} = 0b000;
2072 let Inst{7-6} = 0b01;
2074 def t2MOVsra_flag : T2TwoRegShiftImm<
2075 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2076 "asrs", ".w\t$Rd, $Rm, #1",
2077 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2078 let Inst{31-27} = 0b11101;
2079 let Inst{26-25} = 0b01;
2080 let Inst{24-21} = 0b0010;
2081 let Inst{20} = 1; // The S bit.
2082 let Inst{19-16} = 0b1111; // Rn
2083 let Inst{5-4} = 0b10; // Shift type.
2084 // Shift amount = Inst{14-12:7-6} = 1.
2085 let Inst{14-12} = 0b000;
2086 let Inst{7-6} = 0b01;
2090 //===----------------------------------------------------------------------===//
2091 // Bitwise Instructions.
2094 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2095 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2096 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2097 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2098 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2099 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2100 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2101 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2102 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2104 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2105 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2106 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2108 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2109 string opc, string asm, list<dag> pattern>
2110 : T2I<oops, iops, itin, opc, asm, pattern> {
2115 let Inst{11-8} = Rd{3-0};
2116 let Inst{4-0} = msb{4-0};
2117 let Inst{14-12} = lsb{4-2};
2118 let Inst{7-6} = lsb{1-0};
2121 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2122 string opc, string asm, list<dag> pattern>
2123 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2126 let Inst{19-16} = Rn{3-0};
2129 let Constraints = "$src = $Rd" in
2130 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2131 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2132 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2133 let Inst{31-27} = 0b11110;
2135 let Inst{24-20} = 0b10110;
2136 let Inst{19-16} = 0b1111; // Rn
2140 let msb{4-0} = imm{9-5};
2141 let lsb{4-0} = imm{4-0};
2144 def t2SBFX: T2TwoRegBitFI<
2145 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2146 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2147 let Inst{31-27} = 0b11110;
2149 let Inst{24-20} = 0b10100;
2153 def t2UBFX: T2TwoRegBitFI<
2154 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2155 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2156 let Inst{31-27} = 0b11110;
2158 let Inst{24-20} = 0b11100;
2162 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2163 let Constraints = "$src = $Rd" in
2164 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2165 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2166 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2167 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2168 bf_inv_mask_imm:$imm))]> {
2169 let Inst{31-27} = 0b11110;
2171 let Inst{24-20} = 0b10110;
2175 let msb{4-0} = imm{9-5};
2176 let lsb{4-0} = imm{4-0};
2179 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2180 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2181 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2183 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2184 let AddedComplexity = 1 in
2185 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2186 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2187 UnOpFrag<(not node:$Src)>, 1, 1>;
2190 let AddedComplexity = 1 in
2191 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2192 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2194 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2195 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2196 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2197 Requires<[IsThumb2]>;
2199 def : T2Pat<(t2_so_imm_not:$src),
2200 (t2MVNi t2_so_imm_not:$src)>;
2202 //===----------------------------------------------------------------------===//
2203 // Multiply Instructions.
2205 let isCommutable = 1 in
2206 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2207 "mul", "\t$Rd, $Rn, $Rm",
2208 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2209 let Inst{31-27} = 0b11111;
2210 let Inst{26-23} = 0b0110;
2211 let Inst{22-20} = 0b000;
2212 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2213 let Inst{7-4} = 0b0000; // Multiply
2216 def t2MLA: T2FourReg<
2217 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2218 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2219 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2220 let Inst{31-27} = 0b11111;
2221 let Inst{26-23} = 0b0110;
2222 let Inst{22-20} = 0b000;
2223 let Inst{7-4} = 0b0000; // Multiply
2226 def t2MLS: T2FourReg<
2227 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2228 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2229 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2230 let Inst{31-27} = 0b11111;
2231 let Inst{26-23} = 0b0110;
2232 let Inst{22-20} = 0b000;
2233 let Inst{7-4} = 0b0001; // Multiply and Subtract
2236 // Extra precision multiplies with low / high results
2237 let neverHasSideEffects = 1 in {
2238 let isCommutable = 1 in {
2239 def t2SMULL : T2FourReg<
2240 (outs rGPR:$Rd, rGPR:$Ra),
2241 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2242 "smull", "\t$Rd, $Ra, $Rn, $Rm", []> {
2243 let Inst{31-27} = 0b11111;
2244 let Inst{26-23} = 0b0111;
2245 let Inst{22-20} = 0b000;
2246 let Inst{7-4} = 0b0000;
2249 def t2UMULL : T2FourReg<
2250 (outs rGPR:$Rd, rGPR:$Ra),
2251 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2252 "umull", "\t$Rd, $Ra, $Rn, $Rm", []> {
2253 let Inst{31-27} = 0b11111;
2254 let Inst{26-23} = 0b0111;
2255 let Inst{22-20} = 0b010;
2256 let Inst{7-4} = 0b0000;
2260 // Multiply + accumulate
2261 def t2SMLAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
2262 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2263 "smlal", "\t$Ra, $Rd, $Rn, $Rm", []>{
2264 let Inst{31-27} = 0b11111;
2265 let Inst{26-23} = 0b0111;
2266 let Inst{22-20} = 0b100;
2267 let Inst{7-4} = 0b0000;
2270 def t2UMLAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
2271 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2272 "umlal", "\t$Ra, $Rd, $Rn, $Rm", []>{
2273 let Inst{31-27} = 0b11111;
2274 let Inst{26-23} = 0b0111;
2275 let Inst{22-20} = 0b110;
2276 let Inst{7-4} = 0b0000;
2279 def t2UMAAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
2280 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2281 "umaal", "\t$Ra, $Rd, $Rn, $Rm", []>{
2282 let Inst{31-27} = 0b11111;
2283 let Inst{26-23} = 0b0111;
2284 let Inst{22-20} = 0b110;
2285 let Inst{7-4} = 0b0110;
2287 } // neverHasSideEffects
2289 // Rounding variants of the below included for disassembly only
2291 // Most significant word multiply
2292 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2293 "smmul", "\t$Rd, $Rn, $Rm",
2294 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]> {
2295 let Inst{31-27} = 0b11111;
2296 let Inst{26-23} = 0b0110;
2297 let Inst{22-20} = 0b101;
2298 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2299 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2302 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2303 "smmulr", "\t$Rd, $Rn, $Rm", []> {
2304 let Inst{31-27} = 0b11111;
2305 let Inst{26-23} = 0b0110;
2306 let Inst{22-20} = 0b101;
2307 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2308 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2311 def t2SMMLA : T2FourReg<
2312 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2313 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2314 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]> {
2315 let Inst{31-27} = 0b11111;
2316 let Inst{26-23} = 0b0110;
2317 let Inst{22-20} = 0b101;
2318 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2321 def t2SMMLAR: T2FourReg<
2322 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2323 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []> {
2324 let Inst{31-27} = 0b11111;
2325 let Inst{26-23} = 0b0110;
2326 let Inst{22-20} = 0b101;
2327 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2330 def t2SMMLS: T2FourReg<
2331 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2332 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2333 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]> {
2334 let Inst{31-27} = 0b11111;
2335 let Inst{26-23} = 0b0110;
2336 let Inst{22-20} = 0b110;
2337 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2340 def t2SMMLSR:T2FourReg<
2341 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2342 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []> {
2343 let Inst{31-27} = 0b11111;
2344 let Inst{26-23} = 0b0110;
2345 let Inst{22-20} = 0b110;
2346 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2349 multiclass T2I_smul<string opc, PatFrag opnode> {
2350 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2351 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2352 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2353 (sext_inreg rGPR:$Rm, i16)))]> {
2354 let Inst{31-27} = 0b11111;
2355 let Inst{26-23} = 0b0110;
2356 let Inst{22-20} = 0b001;
2357 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2358 let Inst{7-6} = 0b00;
2359 let Inst{5-4} = 0b00;
2362 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2363 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2364 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2365 (sra rGPR:$Rm, (i32 16))))]> {
2366 let Inst{31-27} = 0b11111;
2367 let Inst{26-23} = 0b0110;
2368 let Inst{22-20} = 0b001;
2369 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2370 let Inst{7-6} = 0b00;
2371 let Inst{5-4} = 0b01;
2374 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2375 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2376 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2377 (sext_inreg rGPR:$Rm, i16)))]> {
2378 let Inst{31-27} = 0b11111;
2379 let Inst{26-23} = 0b0110;
2380 let Inst{22-20} = 0b001;
2381 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2382 let Inst{7-6} = 0b00;
2383 let Inst{5-4} = 0b10;
2386 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2387 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2388 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2389 (sra rGPR:$Rm, (i32 16))))]> {
2390 let Inst{31-27} = 0b11111;
2391 let Inst{26-23} = 0b0110;
2392 let Inst{22-20} = 0b001;
2393 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2394 let Inst{7-6} = 0b00;
2395 let Inst{5-4} = 0b11;
2398 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2399 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2400 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2401 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]> {
2402 let Inst{31-27} = 0b11111;
2403 let Inst{26-23} = 0b0110;
2404 let Inst{22-20} = 0b011;
2405 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2406 let Inst{7-6} = 0b00;
2407 let Inst{5-4} = 0b00;
2410 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2411 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2412 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2413 (sra rGPR:$Rm, (i32 16))), (i32 16)))]> {
2414 let Inst{31-27} = 0b11111;
2415 let Inst{26-23} = 0b0110;
2416 let Inst{22-20} = 0b011;
2417 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2418 let Inst{7-6} = 0b00;
2419 let Inst{5-4} = 0b01;
2424 multiclass T2I_smla<string opc, PatFrag opnode> {
2426 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2427 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2428 [(set rGPR:$Rd, (add rGPR:$Ra,
2429 (opnode (sext_inreg rGPR:$Rn, i16),
2430 (sext_inreg rGPR:$Rm, i16))))]> {
2431 let Inst{31-27} = 0b11111;
2432 let Inst{26-23} = 0b0110;
2433 let Inst{22-20} = 0b001;
2434 let Inst{7-6} = 0b00;
2435 let Inst{5-4} = 0b00;
2439 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2440 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2441 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2442 (sra rGPR:$Rm, (i32 16)))))]> {
2443 let Inst{31-27} = 0b11111;
2444 let Inst{26-23} = 0b0110;
2445 let Inst{22-20} = 0b001;
2446 let Inst{7-6} = 0b00;
2447 let Inst{5-4} = 0b01;
2451 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2452 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2453 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2454 (sext_inreg rGPR:$Rm, i16))))]> {
2455 let Inst{31-27} = 0b11111;
2456 let Inst{26-23} = 0b0110;
2457 let Inst{22-20} = 0b001;
2458 let Inst{7-6} = 0b00;
2459 let Inst{5-4} = 0b10;
2463 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2464 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2465 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2466 (sra rGPR:$Rm, (i32 16)))))]> {
2467 let Inst{31-27} = 0b11111;
2468 let Inst{26-23} = 0b0110;
2469 let Inst{22-20} = 0b001;
2470 let Inst{7-6} = 0b00;
2471 let Inst{5-4} = 0b11;
2475 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2476 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2477 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2478 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]> {
2479 let Inst{31-27} = 0b11111;
2480 let Inst{26-23} = 0b0110;
2481 let Inst{22-20} = 0b011;
2482 let Inst{7-6} = 0b00;
2483 let Inst{5-4} = 0b00;
2487 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2488 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2489 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2490 (sra rGPR:$Rm, (i32 16))), (i32 16))))]> {
2491 let Inst{31-27} = 0b11111;
2492 let Inst{26-23} = 0b0110;
2493 let Inst{22-20} = 0b011;
2494 let Inst{7-6} = 0b00;
2495 let Inst{5-4} = 0b01;
2499 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2500 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2502 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2503 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2504 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2505 [/* For disassembly only; pattern left blank */]>;
2506 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2507 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2508 [/* For disassembly only; pattern left blank */]>;
2509 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2510 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2511 [/* For disassembly only; pattern left blank */]>;
2512 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2513 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2514 [/* For disassembly only; pattern left blank */]>;
2516 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2517 // These are for disassembly only.
2519 def t2SMUAD: T2ThreeReg_mac<
2520 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2521 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []> {
2522 let Inst{15-12} = 0b1111;
2524 def t2SMUADX:T2ThreeReg_mac<
2525 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2526 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []> {
2527 let Inst{15-12} = 0b1111;
2529 def t2SMUSD: T2ThreeReg_mac<
2530 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2531 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []> {
2532 let Inst{15-12} = 0b1111;
2534 def t2SMUSDX:T2ThreeReg_mac<
2535 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2536 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []> {
2537 let Inst{15-12} = 0b1111;
2539 def t2SMLAD : T2ThreeReg_mac<
2540 0, 0b010, 0b0000, (outs rGPR:$Rd),
2541 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2542 "\t$Rd, $Rn, $Rm, $Ra", []>;
2543 def t2SMLADX : T2FourReg_mac<
2544 0, 0b010, 0b0001, (outs rGPR:$Rd),
2545 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2546 "\t$Rd, $Rn, $Rm, $Ra", []>;
2547 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2548 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2549 "\t$Rd, $Rn, $Rm, $Ra", []>;
2550 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2551 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2552 "\t$Rd, $Rn, $Rm, $Ra", []>;
2553 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2554 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2555 "\t$Ra, $Rd, $Rm, $Rn", []>;
2556 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2557 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2558 "\t$Ra, $Rd, $Rm, $Rn", []>;
2559 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2560 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2561 "\t$Ra, $Rd, $Rm, $Rn", []>;
2562 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2563 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2564 "\t$Ra, $Rd, $Rm, $Rn", []>;
2566 //===----------------------------------------------------------------------===//
2567 // Misc. Arithmetic Instructions.
2570 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2571 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2572 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2573 let Inst{31-27} = 0b11111;
2574 let Inst{26-22} = 0b01010;
2575 let Inst{21-20} = op1;
2576 let Inst{15-12} = 0b1111;
2577 let Inst{7-6} = 0b10;
2578 let Inst{5-4} = op2;
2579 let Rn{3-0} = Rm{3-0};
2582 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2583 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2585 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2586 "rbit", "\t$Rd, $Rm",
2587 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2589 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2590 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2592 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2593 "rev16", ".w\t$Rd, $Rm",
2595 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF),
2596 (or (and (shl rGPR:$Rm, (i32 8)), 0xFF00),
2597 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF0000),
2598 (and (shl rGPR:$Rm, (i32 8)), 0xFF000000)))))]>;
2600 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2601 "revsh", ".w\t$Rd, $Rm",
2604 (or (srl (and rGPR:$Rm, 0xFF00), (i32 8)),
2605 (shl rGPR:$Rm, (i32 8))), i16))]>;
2607 def t2PKHBT : T2ThreeReg<
2608 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2609 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2610 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2611 (and (shl rGPR:$Rm, lsl_amt:$sh),
2613 Requires<[HasT2ExtractPack, IsThumb2]> {
2614 let Inst{31-27} = 0b11101;
2615 let Inst{26-25} = 0b01;
2616 let Inst{24-20} = 0b01100;
2617 let Inst{5} = 0; // BT form
2621 let Inst{14-12} = sh{7-5};
2622 let Inst{7-6} = sh{4-3};
2625 // Alternate cases for PKHBT where identities eliminate some nodes.
2626 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2627 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2628 Requires<[HasT2ExtractPack, IsThumb2]>;
2629 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2630 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2631 Requires<[HasT2ExtractPack, IsThumb2]>;
2633 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2634 // will match the pattern below.
2635 def t2PKHTB : T2ThreeReg<
2636 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2637 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2638 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2639 (and (sra rGPR:$Rm, asr_amt:$sh),
2641 Requires<[HasT2ExtractPack, IsThumb2]> {
2642 let Inst{31-27} = 0b11101;
2643 let Inst{26-25} = 0b01;
2644 let Inst{24-20} = 0b01100;
2645 let Inst{5} = 1; // TB form
2649 let Inst{14-12} = sh{7-5};
2650 let Inst{7-6} = sh{4-3};
2653 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2654 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2655 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2656 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2657 Requires<[HasT2ExtractPack, IsThumb2]>;
2658 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2659 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2660 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2661 Requires<[HasT2ExtractPack, IsThumb2]>;
2663 //===----------------------------------------------------------------------===//
2664 // Comparison Instructions...
2666 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2667 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2668 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2669 defm t2CMPz : T2I_cmp_irs<0b1101, "cmp",
2670 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2671 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
2673 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2674 // Compare-to-zero still works out, just not the relationals
2675 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2676 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2677 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2678 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2679 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2681 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2682 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2684 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2685 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2687 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2688 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2689 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2690 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2691 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2692 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2694 // Conditional moves
2695 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2696 // a two-value operand where a dag node expects two operands. :(
2697 let neverHasSideEffects = 1 in {
2698 def t2MOVCCr : T2TwoReg<
2699 (outs rGPR:$Rd), (ins rGPR:$false, rGPR:$Rm), IIC_iCMOVr,
2700 "mov", ".w\t$Rd, $Rm",
2701 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2702 RegConstraint<"$false = $Rd"> {
2703 let Inst{31-27} = 0b11101;
2704 let Inst{26-25} = 0b01;
2705 let Inst{24-21} = 0b0010;
2706 let Inst{20} = 0; // The S bit.
2707 let Inst{19-16} = 0b1111; // Rn
2708 let Inst{14-12} = 0b000;
2709 let Inst{7-4} = 0b0000;
2712 let isMoveImm = 1 in
2713 def t2MOVCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2714 IIC_iCMOVi, "mov", ".w\t$Rd, $imm",
2715 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2716 RegConstraint<"$false = $Rd"> {
2717 let Inst{31-27} = 0b11110;
2719 let Inst{24-21} = 0b0010;
2720 let Inst{20} = 0; // The S bit.
2721 let Inst{19-16} = 0b1111; // Rn
2725 let isMoveImm = 1 in
2726 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, i32imm:$imm),
2728 "movw", "\t$Rd, $imm", []>,
2729 RegConstraint<"$false = $Rd"> {
2730 let Inst{31-27} = 0b11110;
2732 let Inst{24-21} = 0b0010;
2733 let Inst{20} = 0; // The S bit.
2739 let Inst{11-8} = Rd{3-0};
2740 let Inst{19-16} = imm{15-12};
2741 let Inst{26} = imm{11};
2742 let Inst{14-12} = imm{10-8};
2743 let Inst{7-0} = imm{7-0};
2746 let isMoveImm = 1 in
2747 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2748 (ins rGPR:$false, i32imm:$src, pred:$p),
2749 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2751 let isMoveImm = 1 in
2752 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2753 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2754 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2755 imm:$cc, CCR:$ccr))*/]>,
2756 RegConstraint<"$false = $Rd"> {
2757 let Inst{31-27} = 0b11110;
2759 let Inst{24-21} = 0b0011;
2760 let Inst{20} = 0; // The S bit.
2761 let Inst{19-16} = 0b1111; // Rn
2765 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2766 string opc, string asm, list<dag> pattern>
2767 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2768 let Inst{31-27} = 0b11101;
2769 let Inst{26-25} = 0b01;
2770 let Inst{24-21} = 0b0010;
2771 let Inst{20} = 0; // The S bit.
2772 let Inst{19-16} = 0b1111; // Rn
2773 let Inst{5-4} = opcod; // Shift type.
2775 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2776 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2777 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2778 RegConstraint<"$false = $Rd">;
2779 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2780 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2781 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2782 RegConstraint<"$false = $Rd">;
2783 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2784 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2785 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2786 RegConstraint<"$false = $Rd">;
2787 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2788 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2789 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2790 RegConstraint<"$false = $Rd">;
2791 } // neverHasSideEffects
2793 //===----------------------------------------------------------------------===//
2794 // Atomic operations intrinsics
2797 // memory barriers protect the atomic sequences
2798 let hasSideEffects = 1 in {
2799 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2800 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2801 Requires<[IsThumb, HasDB]> {
2803 let Inst{31-4} = 0xf3bf8f5;
2804 let Inst{3-0} = opt;
2808 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2810 [/* For disassembly only; pattern left blank */]>,
2811 Requires<[IsThumb, HasDB]> {
2813 let Inst{31-4} = 0xf3bf8f4;
2814 let Inst{3-0} = opt;
2817 // ISB has only full system option -- for disassembly only
2818 def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
2819 [/* For disassembly only; pattern left blank */]>,
2820 Requires<[IsThumb2, HasV7]> {
2821 let Inst{31-4} = 0xf3bf8f6;
2822 let Inst{3-0} = 0b1111;
2825 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2826 InstrItinClass itin, string opc, string asm, string cstr,
2827 list<dag> pattern, bits<4> rt2 = 0b1111>
2828 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2829 let Inst{31-27} = 0b11101;
2830 let Inst{26-20} = 0b0001101;
2831 let Inst{11-8} = rt2;
2832 let Inst{7-6} = 0b01;
2833 let Inst{5-4} = opcod;
2834 let Inst{3-0} = 0b1111;
2838 let Inst{19-16} = Rn{3-0};
2839 let Inst{15-12} = Rt{3-0};
2841 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2842 InstrItinClass itin, string opc, string asm, string cstr,
2843 list<dag> pattern, bits<4> rt2 = 0b1111>
2844 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2845 let Inst{31-27} = 0b11101;
2846 let Inst{26-20} = 0b0001100;
2847 let Inst{11-8} = rt2;
2848 let Inst{7-6} = 0b01;
2849 let Inst{5-4} = opcod;
2854 let Inst{11-8} = Rd{3-0};
2855 let Inst{19-16} = Rn{3-0};
2856 let Inst{15-12} = Rt{3-0};
2859 let mayLoad = 1 in {
2860 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2861 Size4Bytes, NoItinerary, "ldrexb", "\t$Rt, [$Rn]",
2863 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2864 Size4Bytes, NoItinerary, "ldrexh", "\t$Rt, [$Rn]",
2866 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2867 Size4Bytes, NoItinerary,
2868 "ldrex", "\t$Rt, [$Rn]", "",
2870 let Inst{31-27} = 0b11101;
2871 let Inst{26-20} = 0b0000101;
2872 let Inst{11-8} = 0b1111;
2873 let Inst{7-0} = 0b00000000; // imm8 = 0
2875 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2), (ins rGPR:$Rn),
2876 AddrModeNone, Size4Bytes, NoItinerary,
2877 "ldrexd", "\t$Rt, $Rt2, [$Rn]", "",
2880 let Inst{11-8} = Rt2{3-0};
2884 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2885 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2886 AddrModeNone, Size4Bytes, NoItinerary,
2887 "strexb", "\t$Rd, $Rt, [$Rn]", "", []>;
2888 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2889 AddrModeNone, Size4Bytes, NoItinerary,
2890 "strexh", "\t$Rd, $Rt, [$Rn]", "", []>;
2891 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2892 AddrModeNone, Size4Bytes, NoItinerary,
2893 "strex", "\t$Rd, $Rt, [$Rn]", "",
2895 let Inst{31-27} = 0b11101;
2896 let Inst{26-20} = 0b0000100;
2897 let Inst{7-0} = 0b00000000; // imm8 = 0
2899 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2900 (ins rGPR:$Rt, rGPR:$Rt2, rGPR:$Rn),
2901 AddrModeNone, Size4Bytes, NoItinerary,
2902 "strexd", "\t$Rd, $Rt, $Rt2, [$Rn]", "", [],
2905 let Inst{11-8} = Rt2{3-0};
2909 // Clear-Exclusive is for disassembly only.
2910 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2911 [/* For disassembly only; pattern left blank */]>,
2912 Requires<[IsARM, HasV7]> {
2913 let Inst{31-20} = 0xf3b;
2914 let Inst{15-14} = 0b10;
2916 let Inst{7-4} = 0b0010;
2919 //===----------------------------------------------------------------------===//
2923 // __aeabi_read_tp preserves the registers r1-r3.
2925 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
2926 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2927 "bl\t__aeabi_read_tp",
2928 [(set R0, ARMthread_pointer)]> {
2929 let Inst{31-27} = 0b11110;
2930 let Inst{15-14} = 0b11;
2935 //===----------------------------------------------------------------------===//
2936 // SJLJ Exception handling intrinsics
2937 // eh_sjlj_setjmp() is an instruction sequence to store the return
2938 // address and save #0 in R0 for the non-longjmp case.
2939 // Since by its nature we may be coming from some other function to get
2940 // here, and we're using the stack frame for the containing function to
2941 // save/restore registers, we can't keep anything live in regs across
2942 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2943 // when we get here from a longjmp(). We force everthing out of registers
2944 // except for our own input by listing the relevant registers in Defs. By
2945 // doing so, we also cause the prologue/epilogue code to actively preserve
2946 // all of the callee-saved resgisters, which is exactly what we want.
2947 // $val is a scratch register for our use.
2949 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2950 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2951 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2952 D31 ], hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2953 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2954 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2955 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2956 Requires<[IsThumb2, HasVFP2]>;
2960 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2961 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2962 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2963 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2964 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2965 Requires<[IsThumb2, NoVFP]>;
2969 //===----------------------------------------------------------------------===//
2970 // Control-Flow Instructions
2973 // FIXME: remove when we have a way to marking a MI with these properties.
2974 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2976 // FIXME: Should pc be an implicit operand like PICADD, etc?
2977 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2978 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2979 def t2LDMIA_RET: T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2980 reglist:$regs, variable_ops),
2982 "ldmia${p}.w\t$Rn!, $regs",
2987 let Inst{31-27} = 0b11101;
2988 let Inst{26-25} = 0b00;
2989 let Inst{24-23} = 0b01; // Increment After
2991 let Inst{21} = 1; // Writeback
2993 let Inst{19-16} = Rn;
2994 let Inst{15-0} = regs;
2997 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2998 let isPredicable = 1 in
2999 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
3001 [(br bb:$target)]> {
3002 let Inst{31-27} = 0b11110;
3003 let Inst{15-14} = 0b10;
3007 let Inst{26} = target{19};
3008 let Inst{11} = target{18};
3009 let Inst{13} = target{17};
3010 let Inst{21-16} = target{16-11};
3011 let Inst{10-0} = target{10-0};
3014 let isNotDuplicable = 1, isIndirectBranch = 1 in {
3015 def t2BR_JT : tPseudoInst<(outs),
3016 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3017 SizeSpecial, IIC_Br,
3018 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
3020 // FIXME: Add a non-pc based case that can be predicated.
3021 def t2TBB_JT : tPseudoInst<(outs),
3022 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3023 SizeSpecial, IIC_Br, []>;
3025 def t2TBH_JT : tPseudoInst<(outs),
3026 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3027 SizeSpecial, IIC_Br, []>;
3029 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3030 "tbb", "\t[$Rn, $Rm]", []> {
3033 let Inst{27-20} = 0b10001101;
3034 let Inst{19-16} = Rn;
3035 let Inst{15-5} = 0b11110000000;
3036 let Inst{4} = 0; // B form
3040 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3041 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3044 let Inst{27-20} = 0b10001101;
3045 let Inst{19-16} = Rn;
3046 let Inst{15-5} = 0b11110000000;
3047 let Inst{4} = 1; // H form
3050 } // isNotDuplicable, isIndirectBranch
3052 } // isBranch, isTerminator, isBarrier
3054 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3055 // a two-value operand where a dag node expects two operands. :(
3056 let isBranch = 1, isTerminator = 1 in
3057 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3059 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3060 let Inst{31-27} = 0b11110;
3061 let Inst{15-14} = 0b10;
3065 let Inst{26} = target{19};
3066 let Inst{11} = target{18};
3067 let Inst{13} = target{17};
3068 let Inst{21-16} = target{16-11};
3069 let Inst{10-0} = target{10-0};
3074 let Defs = [ITSTATE] in
3075 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3076 AddrModeNone, Size2Bytes, IIC_iALUx,
3077 "it$mask\t$cc", "", []> {
3078 // 16-bit instruction.
3079 let Inst{31-16} = 0x0000;
3080 let Inst{15-8} = 0b10111111;
3084 let Inst{7-4} = cc{3-0};
3085 let Inst{3-0} = mask{3-0};
3088 // Branch and Exchange Jazelle -- for disassembly only
3090 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3091 [/* For disassembly only; pattern left blank */]> {
3092 let Inst{31-27} = 0b11110;
3094 let Inst{25-20} = 0b111100;
3095 let Inst{15-14} = 0b10;
3099 let Inst{19-16} = func{3-0};
3102 // Change Processor State is a system instruction -- for disassembly only.
3103 // The singleton $opt operand contains the following information:
3104 // opt{4-0} = mode from Inst{4-0}
3105 // opt{5} = changemode from Inst{17}
3106 // opt{8-6} = AIF from Inst{8-6}
3107 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
3108 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
3109 [/* For disassembly only; pattern left blank */]> {
3110 let Inst{31-27} = 0b11110;
3112 let Inst{25-20} = 0b111010;
3113 let Inst{15-14} = 0b10;
3119 let Inst{4-0} = opt{4-0};
3122 let Inst{8} = opt{5};
3125 let Inst{5} = opt{6};
3128 let Inst{6} = opt{7};
3131 let Inst{7} = opt{8};
3134 let Inst{10-9} = opt{10-9};
3137 // A6.3.4 Branches and miscellaneous control
3138 // Table A6-14 Change Processor State, and hint instructions
3139 // Helper class for disassembly only.
3140 class T2I_hint<bits<8> op7_0, string opc, string asm>
3141 : T2I<(outs), (ins), NoItinerary, opc, asm,
3142 [/* For disassembly only; pattern left blank */]> {
3143 let Inst{31-20} = 0xf3a;
3144 let Inst{15-14} = 0b10;
3146 let Inst{10-8} = 0b000;
3147 let Inst{7-0} = op7_0;
3150 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3151 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3152 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3153 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3154 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3156 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
3157 [/* For disassembly only; pattern left blank */]> {
3158 let Inst{31-20} = 0xf3a;
3159 let Inst{15-14} = 0b10;
3161 let Inst{10-8} = 0b000;
3162 let Inst{7-4} = 0b1111;
3165 let Inst{3-0} = opt{3-0};
3168 // Secure Monitor Call is a system instruction -- for disassembly only
3169 // Option = Inst{19-16}
3170 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
3171 [/* For disassembly only; pattern left blank */]> {
3172 let Inst{31-27} = 0b11110;
3173 let Inst{26-20} = 0b1111111;
3174 let Inst{15-12} = 0b1000;
3177 let Inst{19-16} = opt{3-0};
3180 class T2SRS<bits<12> op31_20,
3181 dag oops, dag iops, InstrItinClass itin,
3182 string opc, string asm, list<dag> pattern>
3183 : T2I<oops, iops, itin, opc, asm, pattern> {
3184 let Inst{31-20} = op31_20{11-0};
3187 let Inst{4-0} = mode{4-0};
3190 // Store Return State is a system instruction -- for disassembly only
3191 def t2SRSDBW : T2SRS<0b111010000010,
3192 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3193 [/* For disassembly only; pattern left blank */]>;
3194 def t2SRSDB : T2SRS<0b111010000000,
3195 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3196 [/* For disassembly only; pattern left blank */]>;
3197 def t2SRSIAW : T2SRS<0b111010011010,
3198 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3199 [/* For disassembly only; pattern left blank */]>;
3200 def t2SRSIA : T2SRS<0b111010011000,
3201 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3202 [/* For disassembly only; pattern left blank */]>;
3204 // Return From Exception is a system instruction -- for disassembly only
3206 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3207 string opc, string asm, list<dag> pattern>
3208 : T2I<oops, iops, itin, opc, asm, pattern> {
3209 let Inst{31-20} = op31_20{11-0};
3212 let Inst{19-16} = Rn{3-0};
3215 def t2RFEDBW : T2RFE<0b111010000011,
3216 (outs), (ins rGPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3217 [/* For disassembly only; pattern left blank */]>;
3218 def t2RFEDB : T2RFE<0b111010000001,
3219 (outs), (ins rGPR:$Rn), NoItinerary, "rfeab", "\t$Rn",
3220 [/* For disassembly only; pattern left blank */]>;
3221 def t2RFEIAW : T2RFE<0b111010011011,
3222 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3223 [/* For disassembly only; pattern left blank */]>;
3224 def t2RFEIA : T2RFE<0b111010011001,
3225 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3226 [/* For disassembly only; pattern left blank */]>;
3228 //===----------------------------------------------------------------------===//
3229 // Non-Instruction Patterns
3232 // 32-bit immediate using movw + movt.
3233 // This is a single pseudo instruction to make it re-materializable.
3234 // FIXME: Remove this when we can do generalized remat.
3235 let isReMaterializable = 1, isMoveImm = 1 in
3236 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3237 [(set rGPR:$dst, (i32 imm:$src))]>,
3238 Requires<[IsThumb, HasV6T2]>;
3240 // ConstantPool, GlobalAddress, and JumpTable
3241 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3242 Requires<[IsThumb2, DontUseMovt]>;
3243 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3244 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3245 Requires<[IsThumb2, UseMovt]>;
3247 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3248 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3250 // Pseudo instruction that combines ldr from constpool and add pc. This should
3251 // be expanded into two instructions late to allow if-conversion and
3253 let canFoldAsLoad = 1, isReMaterializable = 1 in
3254 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3256 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3258 Requires<[IsThumb2]>;
3260 //===----------------------------------------------------------------------===//
3261 // Move between special register and ARM core register -- for disassembly only
3264 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3265 dag oops, dag iops, InstrItinClass itin,
3266 string opc, string asm, list<dag> pattern>
3267 : T2I<oops, iops, itin, opc, asm, pattern> {
3268 let Inst{31-20} = op31_20{11-0};
3269 let Inst{15-14} = op15_14{1-0};
3270 let Inst{12} = op12{0};
3273 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3274 dag oops, dag iops, InstrItinClass itin,
3275 string opc, string asm, list<dag> pattern>
3276 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3278 let Inst{11-8} = Rd{3-0};
3281 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3282 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3283 [/* For disassembly only; pattern left blank */]>;
3284 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3285 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3286 [/* For disassembly only; pattern left blank */]>;
3288 class T2MSR<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3289 dag oops, dag iops, InstrItinClass itin,
3290 string opc, string asm, list<dag> pattern>
3291 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3294 let Inst{19-16} = Rn{3-0};
3295 let Inst{11-8} = mask{3-0};
3298 def t2MSR : T2MSR<0b111100111000, 0b10, 0,
3299 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3301 [/* For disassembly only; pattern left blank */]>;
3302 def t2MSRsys : T2MSR<0b111100111001, 0b10, 0,
3303 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3305 [/* For disassembly only; pattern left blank */]>;