1 //===- ARMInstrThumb2.td - Thumb2 support for ARM -------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file describes the Thumb2 instruction set.
12 //===----------------------------------------------------------------------===//
14 // IT block predicate field
15 def it_pred : Operand<i32> {
16 let PrintMethod = "printMandatoryPredicateOperand";
19 // IT block condition mask
20 def it_mask : Operand<i32> {
21 let PrintMethod = "printThumbITMask";
24 // Shifted operands. No register controlled shifts for Thumb2.
25 // Note: We do not support rrx shifted operands yet.
26 def t2_so_reg : Operand<i32>, // reg imm
27 ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
29 let EncoderMethod = "getT2SORegOpValue";
30 let PrintMethod = "printT2SOOperand";
31 let MIOperandInfo = (ops rGPR, i32imm);
34 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
35 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
36 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
39 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
40 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
41 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), MVT::i32);
44 // t2_so_imm - Match a 32-bit immediate operand, which is an
45 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
46 // immediate splatted into multiple bytes of the word. t2_so_imm values are
47 // represented in the imm field in the same 12-bit form that they are encoded
48 // into t2_so_imm instructions: the 8-bit immediate is the least significant
49 // bits [bits 0-7], the 4-bit shift/splat amount is the next 4 bits [bits 8-11].
50 def t2_so_imm : Operand<i32>, PatLeaf<(imm), [{ return Pred_t2_so_imm(N); }]> {
51 let EncoderMethod = "getT2SOImmOpValue";
54 // t2_so_imm_not - Match an immediate that is a complement
56 def t2_so_imm_not : Operand<i32>,
58 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
59 }], t2_so_imm_not_XFORM>;
61 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
62 def t2_so_imm_neg : Operand<i32>,
64 return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
65 }], t2_so_imm_neg_XFORM>;
67 // Break t2_so_imm's up into two pieces. This handles immediates with up to 16
68 // bits set in them. This uses t2_so_imm2part to match and t2_so_imm2part_[12]
69 // to get the first/second pieces.
70 def t2_so_imm2part : Operand<i32>,
72 return ARM_AM::isT2SOImmTwoPartVal((unsigned)N->getZExtValue());
76 def t2_so_imm2part_1 : SDNodeXForm<imm, [{
77 unsigned V = ARM_AM::getT2SOImmTwoPartFirst((unsigned)N->getZExtValue());
78 return CurDAG->getTargetConstant(V, MVT::i32);
81 def t2_so_imm2part_2 : SDNodeXForm<imm, [{
82 unsigned V = ARM_AM::getT2SOImmTwoPartSecond((unsigned)N->getZExtValue());
83 return CurDAG->getTargetConstant(V, MVT::i32);
86 def t2_so_neg_imm2part : Operand<i32>, PatLeaf<(imm), [{
87 return ARM_AM::isT2SOImmTwoPartVal(-(int)N->getZExtValue());
91 def t2_so_neg_imm2part_1 : SDNodeXForm<imm, [{
92 unsigned V = ARM_AM::getT2SOImmTwoPartFirst(-(int)N->getZExtValue());
93 return CurDAG->getTargetConstant(V, MVT::i32);
96 def t2_so_neg_imm2part_2 : SDNodeXForm<imm, [{
97 unsigned V = ARM_AM::getT2SOImmTwoPartSecond(-(int)N->getZExtValue());
98 return CurDAG->getTargetConstant(V, MVT::i32);
101 /// imm1_31 predicate - True if the 32-bit immediate is in the range [1,31].
102 def imm1_31 : PatLeaf<(i32 imm), [{
103 return (int32_t)N->getZExtValue() >= 1 && (int32_t)N->getZExtValue() < 32;
106 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
107 def imm0_4095 : Operand<i32>,
108 PatLeaf<(i32 imm), [{
109 return (uint32_t)N->getZExtValue() < 4096;
112 def imm0_4095_neg : PatLeaf<(i32 imm), [{
113 return (uint32_t)(-N->getZExtValue()) < 4096;
116 def imm0_255_neg : PatLeaf<(i32 imm), [{
117 return (uint32_t)(-N->getZExtValue()) < 255;
120 def imm0_255_not : PatLeaf<(i32 imm), [{
121 return (uint32_t)(~N->getZExtValue()) < 255;
124 // Define Thumb2 specific addressing modes.
126 // t2addrmode_imm12 := reg + imm12
127 def t2addrmode_imm12 : Operand<i32>,
128 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
129 let PrintMethod = "printAddrModeImm12Operand";
130 string EncoderMethod = "getAddrModeImm12OpValue";
131 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
134 // t2addrmode_imm8 := reg +/- imm8
135 def t2addrmode_imm8 : Operand<i32>,
136 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
137 let PrintMethod = "printT2AddrModeImm8Operand";
138 string EncoderMethod = "getT2AddrModeImm8OpValue";
139 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
142 def t2am_imm8_offset : Operand<i32>,
143 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
144 [], [SDNPWantRoot]> {
145 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
146 string EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
149 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
150 def t2addrmode_imm8s4 : Operand<i32> {
151 let PrintMethod = "printT2AddrModeImm8s4Operand";
152 string EncoderMethod = "getT2AddrModeImm8s4OpValue";
153 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
156 def t2am_imm8s4_offset : Operand<i32> {
157 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
160 // t2addrmode_so_reg := reg + (reg << imm2)
161 def t2addrmode_so_reg : Operand<i32>,
162 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
163 let PrintMethod = "printT2AddrModeSoRegOperand";
164 string EncoderMethod = "getT2AddrModeSORegOpValue";
165 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
169 //===----------------------------------------------------------------------===//
170 // Multiclass helpers...
174 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
175 string opc, string asm, list<dag> pattern>
176 : T2I<oops, iops, itin, opc, asm, pattern> {
181 let Inst{26} = imm{11};
182 let Inst{14-12} = imm{10-8};
183 let Inst{7-0} = imm{7-0};
187 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
188 string opc, string asm, list<dag> pattern>
189 : T2sI<oops, iops, itin, opc, asm, pattern> {
195 let Inst{26} = imm{11};
196 let Inst{14-12} = imm{10-8};
197 let Inst{7-0} = imm{7-0};
200 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
201 string opc, string asm, list<dag> pattern>
202 : T2I<oops, iops, itin, opc, asm, pattern> {
206 let Inst{19-16} = Rn;
207 let Inst{26} = imm{11};
208 let Inst{14-12} = imm{10-8};
209 let Inst{7-0} = imm{7-0};
213 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
214 string opc, string asm, list<dag> pattern>
215 : T2I<oops, iops, itin, opc, asm, pattern> {
220 let Inst{3-0} = ShiftedRm{3-0};
221 let Inst{5-4} = ShiftedRm{6-5};
222 let Inst{14-12} = ShiftedRm{11-9};
223 let Inst{7-6} = ShiftedRm{8-7};
226 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
227 string opc, string asm, list<dag> pattern>
228 : T2sI<oops, iops, itin, opc, asm, pattern> {
233 let Inst{3-0} = ShiftedRm{3-0};
234 let Inst{5-4} = ShiftedRm{6-5};
235 let Inst{14-12} = ShiftedRm{11-9};
236 let Inst{7-6} = ShiftedRm{8-7};
239 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
240 string opc, string asm, list<dag> pattern>
241 : T2I<oops, iops, itin, opc, asm, pattern> {
245 let Inst{19-16} = Rn;
246 let Inst{3-0} = ShiftedRm{3-0};
247 let Inst{5-4} = ShiftedRm{6-5};
248 let Inst{14-12} = ShiftedRm{11-9};
249 let Inst{7-6} = ShiftedRm{8-7};
252 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
253 string opc, string asm, list<dag> pattern>
254 : T2I<oops, iops, itin, opc, asm, pattern> {
262 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
263 string opc, string asm, list<dag> pattern>
264 : T2sI<oops, iops, itin, opc, asm, pattern> {
272 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
273 string opc, string asm, list<dag> pattern>
274 : T2I<oops, iops, itin, opc, asm, pattern> {
278 let Inst{19-16} = Rn;
283 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
284 string opc, string asm, list<dag> pattern>
285 : T2I<oops, iops, itin, opc, asm, pattern> {
293 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
294 string opc, string asm, list<dag> pattern>
295 : T2sI<oops, iops, itin, opc, asm, pattern> {
301 let Inst{19-16} = Rn;
302 let Inst{26} = imm{11};
303 let Inst{14-12} = imm{10-8};
304 let Inst{7-0} = imm{7-0};
307 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
308 string opc, string asm, list<dag> pattern>
309 : T2I<oops, iops, itin, opc, asm, pattern> {
316 let Inst{14-12} = imm{4-2};
317 let Inst{7-6} = imm{1-0};
320 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
321 string opc, string asm, list<dag> pattern>
322 : T2sI<oops, iops, itin, opc, asm, pattern> {
329 let Inst{14-12} = imm{4-2};
330 let Inst{7-6} = imm{1-0};
333 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
334 string opc, string asm, list<dag> pattern>
335 : T2I<oops, iops, itin, opc, asm, pattern> {
341 let Inst{19-16} = Rn;
345 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
346 string opc, string asm, list<dag> pattern>
347 : T2sI<oops, iops, itin, opc, asm, pattern> {
353 let Inst{19-16} = Rn;
357 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
358 string opc, string asm, list<dag> pattern>
359 : T2I<oops, iops, itin, opc, asm, pattern> {
365 let Inst{19-16} = Rn;
366 let Inst{3-0} = ShiftedRm{3-0};
367 let Inst{5-4} = ShiftedRm{6-5};
368 let Inst{14-12} = ShiftedRm{11-9};
369 let Inst{7-6} = ShiftedRm{8-7};
372 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
373 string opc, string asm, list<dag> pattern>
374 : T2sI<oops, iops, itin, opc, asm, pattern> {
380 let Inst{19-16} = Rn;
381 let Inst{3-0} = ShiftedRm{3-0};
382 let Inst{5-4} = ShiftedRm{6-5};
383 let Inst{14-12} = ShiftedRm{11-9};
384 let Inst{7-6} = ShiftedRm{8-7};
387 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
388 string opc, string asm, list<dag> pattern>
389 : T2I<oops, iops, itin, opc, asm, pattern> {
395 let Inst{19-16} = Rn;
396 let Inst{15-12} = Ra;
401 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
402 dag oops, dag iops, InstrItinClass itin,
403 string opc, string asm, list<dag> pattern>
404 : T2I<oops, iops, itin, opc, asm, pattern> {
410 let Inst{31-23} = 0b111110111;
411 let Inst{22-20} = opc22_20;
412 let Inst{19-16} = Rn;
413 let Inst{15-12} = RdLo;
414 let Inst{11-8} = RdHi;
415 let Inst{7-4} = opc7_4;
420 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
421 /// unary operation that produces a value. These are predicable and can be
422 /// changed to modify CPSR.
423 multiclass T2I_un_irs<bits<4> opcod, string opc,
424 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
425 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
427 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
429 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
430 let isAsCheapAsAMove = Cheap;
431 let isReMaterializable = ReMat;
432 let Inst{31-27} = 0b11110;
434 let Inst{24-21} = opcod;
435 let Inst{19-16} = 0b1111; // Rn
439 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
441 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
442 let Inst{31-27} = 0b11101;
443 let Inst{26-25} = 0b01;
444 let Inst{24-21} = opcod;
445 let Inst{19-16} = 0b1111; // Rn
446 let Inst{14-12} = 0b000; // imm3
447 let Inst{7-6} = 0b00; // imm2
448 let Inst{5-4} = 0b00; // type
451 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
452 opc, ".w\t$Rd, $ShiftedRm",
453 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
454 let Inst{31-27} = 0b11101;
455 let Inst{26-25} = 0b01;
456 let Inst{24-21} = opcod;
457 let Inst{19-16} = 0b1111; // Rn
461 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
462 /// binary operation that produces a value. These are predicable and can be
463 /// changed to modify CPSR.
464 multiclass T2I_bin_irs<bits<4> opcod, string opc,
465 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
466 PatFrag opnode, bit Commutable = 0, string wide = ""> {
468 def ri : T2sTwoRegImm<
469 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
470 opc, "\t$Rd, $Rn, $imm",
471 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
472 let Inst{31-27} = 0b11110;
474 let Inst{24-21} = opcod;
478 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
479 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
480 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
481 let isCommutable = Commutable;
482 let Inst{31-27} = 0b11101;
483 let Inst{26-25} = 0b01;
484 let Inst{24-21} = opcod;
485 let Inst{14-12} = 0b000; // imm3
486 let Inst{7-6} = 0b00; // imm2
487 let Inst{5-4} = 0b00; // type
490 def rs : T2sTwoRegShiftedReg<
491 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
492 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
493 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
494 let Inst{31-27} = 0b11101;
495 let Inst{26-25} = 0b01;
496 let Inst{24-21} = opcod;
500 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
501 // the ".w" prefix to indicate that they are wide.
502 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
503 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
504 PatFrag opnode, bit Commutable = 0> :
505 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w">;
507 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
508 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
509 /// it is equivalent to the T2I_bin_irs counterpart.
510 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
512 def ri : T2sTwoRegImm<
513 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
514 opc, ".w\t$Rd, $Rn, $imm",
515 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
516 let Inst{31-27} = 0b11110;
518 let Inst{24-21} = opcod;
522 def rr : T2sThreeReg<
523 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
524 opc, "\t$Rd, $Rn, $Rm",
525 [/* For disassembly only; pattern left blank */]> {
526 let Inst{31-27} = 0b11101;
527 let Inst{26-25} = 0b01;
528 let Inst{24-21} = opcod;
529 let Inst{14-12} = 0b000; // imm3
530 let Inst{7-6} = 0b00; // imm2
531 let Inst{5-4} = 0b00; // type
534 def rs : T2sTwoRegShiftedReg<
535 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
536 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
537 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
538 let Inst{31-27} = 0b11101;
539 let Inst{26-25} = 0b01;
540 let Inst{24-21} = opcod;
544 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
545 /// instruction modifies the CPSR register.
546 let Defs = [CPSR] in {
547 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
548 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
549 PatFrag opnode, bit Commutable = 0> {
551 def ri : T2TwoRegImm<
552 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
553 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
554 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
555 let Inst{31-27} = 0b11110;
557 let Inst{24-21} = opcod;
558 let Inst{20} = 1; // The S bit.
563 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
564 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $Rm",
565 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
566 let isCommutable = Commutable;
567 let Inst{31-27} = 0b11101;
568 let Inst{26-25} = 0b01;
569 let Inst{24-21} = opcod;
570 let Inst{20} = 1; // The S bit.
571 let Inst{14-12} = 0b000; // imm3
572 let Inst{7-6} = 0b00; // imm2
573 let Inst{5-4} = 0b00; // type
576 def rs : T2TwoRegShiftedReg<
577 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
578 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $ShiftedRm",
579 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
580 let Inst{31-27} = 0b11101;
581 let Inst{26-25} = 0b01;
582 let Inst{24-21} = opcod;
583 let Inst{20} = 1; // The S bit.
588 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
589 /// patterns for a binary operation that produces a value.
590 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
591 bit Commutable = 0> {
593 // The register-immediate version is re-materializable. This is useful
594 // in particular for taking the address of a local.
595 let isReMaterializable = 1 in {
596 def ri : T2sTwoRegImm<
597 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
598 opc, ".w\t$Rd, $Rn, $imm",
599 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
600 let Inst{31-27} = 0b11110;
603 let Inst{23-21} = op23_21;
608 def ri12 : T2TwoRegImm<
609 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
610 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
611 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
612 let Inst{31-27} = 0b11110;
615 let Inst{23-21} = op23_21;
616 let Inst{20} = 0; // The S bit.
620 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), IIC_iALUr,
621 opc, ".w\t$Rd, $Rn, $Rm",
622 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
623 let isCommutable = Commutable;
624 let Inst{31-27} = 0b11101;
625 let Inst{26-25} = 0b01;
627 let Inst{23-21} = op23_21;
628 let Inst{14-12} = 0b000; // imm3
629 let Inst{7-6} = 0b00; // imm2
630 let Inst{5-4} = 0b00; // type
633 def rs : T2sTwoRegShiftedReg<
634 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
635 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
636 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
637 let Inst{31-27} = 0b11101;
638 let Inst{26-25} = 0b01;
640 let Inst{23-21} = op23_21;
644 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
645 /// for a binary operation that produces a value and use the carry
646 /// bit. It's not predicable.
647 let Uses = [CPSR] in {
648 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
649 bit Commutable = 0> {
651 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
652 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
653 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
654 Requires<[IsThumb2]> {
655 let Inst{31-27} = 0b11110;
657 let Inst{24-21} = opcod;
661 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
662 opc, ".w\t$Rd, $Rn, $Rm",
663 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
664 Requires<[IsThumb2]> {
665 let isCommutable = Commutable;
666 let Inst{31-27} = 0b11101;
667 let Inst{26-25} = 0b01;
668 let Inst{24-21} = opcod;
669 let Inst{14-12} = 0b000; // imm3
670 let Inst{7-6} = 0b00; // imm2
671 let Inst{5-4} = 0b00; // type
674 def rs : T2sTwoRegShiftedReg<
675 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
676 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
677 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
678 Requires<[IsThumb2]> {
679 let Inst{31-27} = 0b11101;
680 let Inst{26-25} = 0b01;
681 let Inst{24-21} = opcod;
685 // Carry setting variants
686 let Defs = [CPSR] in {
687 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
688 bit Commutable = 0> {
690 def ri : T2sTwoRegImm<
691 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
692 opc, "\t$Rd, $Rn, $imm",
693 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
694 Requires<[IsThumb2]> {
695 let Inst{31-27} = 0b11110;
697 let Inst{24-21} = opcod;
698 let Inst{20} = 1; // The S bit.
702 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
703 opc, ".w\t$Rd, $Rn, $Rm",
704 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
705 Requires<[IsThumb2]> {
706 let isCommutable = Commutable;
707 let Inst{31-27} = 0b11101;
708 let Inst{26-25} = 0b01;
709 let Inst{24-21} = opcod;
710 let Inst{20} = 1; // The S bit.
711 let Inst{14-12} = 0b000; // imm3
712 let Inst{7-6} = 0b00; // imm2
713 let Inst{5-4} = 0b00; // type
716 def rs : T2sTwoRegShiftedReg<
717 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
718 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
719 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
720 Requires<[IsThumb2]> {
721 let Inst{31-27} = 0b11101;
722 let Inst{26-25} = 0b01;
723 let Inst{24-21} = opcod;
724 let Inst{20} = 1; // The S bit.
730 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
731 /// version is not needed since this is only for codegen.
732 let Defs = [CPSR] in {
733 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
735 def ri : T2TwoRegImm<
736 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
737 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
738 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
739 let Inst{31-27} = 0b11110;
741 let Inst{24-21} = opcod;
742 let Inst{20} = 1; // The S bit.
746 def rs : T2TwoRegShiftedReg<
747 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
748 IIC_iALUsi, !strconcat(opc, "s"), "\t$Rd, $Rn, $ShiftedRm",
749 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
750 let Inst{31-27} = 0b11101;
751 let Inst{26-25} = 0b01;
752 let Inst{24-21} = opcod;
753 let Inst{20} = 1; // The S bit.
758 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
759 // rotate operation that produces a value.
760 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
762 def ri : T2sTwoRegShiftImm<
763 (outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$imm), IIC_iMOVsi,
764 opc, ".w\t$Rd, $Rm, $imm",
765 [(set rGPR:$Rd, (opnode rGPR:$Rm, imm1_31:$imm))]> {
766 let Inst{31-27} = 0b11101;
767 let Inst{26-21} = 0b010010;
768 let Inst{19-16} = 0b1111; // Rn
769 let Inst{5-4} = opcod;
772 def rr : T2sThreeReg<
773 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
774 opc, ".w\t$Rd, $Rn, $Rm",
775 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
776 let Inst{31-27} = 0b11111;
777 let Inst{26-23} = 0b0100;
778 let Inst{22-21} = opcod;
779 let Inst{15-12} = 0b1111;
780 let Inst{7-4} = 0b0000;
784 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
785 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
786 /// a explicit result, only implicitly set CPSR.
787 let isCompare = 1, Defs = [CPSR] in {
788 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
789 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
792 def ri : T2OneRegCmpImm<
793 (outs), (ins GPR:$Rn, t2_so_imm:$imm), iii,
794 opc, ".w\t$Rn, $imm",
795 [(opnode GPR:$Rn, t2_so_imm:$imm)]> {
796 let Inst{31-27} = 0b11110;
798 let Inst{24-21} = opcod;
799 let Inst{20} = 1; // The S bit.
801 let Inst{11-8} = 0b1111; // Rd
804 def rr : T2TwoRegCmp<
805 (outs), (ins GPR:$lhs, rGPR:$rhs), iir,
806 opc, ".w\t$lhs, $rhs",
807 [(opnode GPR:$lhs, rGPR:$rhs)]> {
808 let Inst{31-27} = 0b11101;
809 let Inst{26-25} = 0b01;
810 let Inst{24-21} = opcod;
811 let Inst{20} = 1; // The S bit.
812 let Inst{14-12} = 0b000; // imm3
813 let Inst{11-8} = 0b1111; // Rd
814 let Inst{7-6} = 0b00; // imm2
815 let Inst{5-4} = 0b00; // type
818 def rs : T2OneRegCmpShiftedReg<
819 (outs), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
820 opc, ".w\t$Rn, $ShiftedRm",
821 [(opnode GPR:$Rn, t2_so_reg:$ShiftedRm)]> {
822 let Inst{31-27} = 0b11101;
823 let Inst{26-25} = 0b01;
824 let Inst{24-21} = opcod;
825 let Inst{20} = 1; // The S bit.
826 let Inst{11-8} = 0b1111; // Rd
831 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
832 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
833 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
834 def i12 : T2Ii12<(outs GPR:$Rt), (ins t2addrmode_imm12:$addr), iii,
835 opc, ".w\t$Rt, $addr",
836 [(set GPR:$Rt, (opnode t2addrmode_imm12:$addr))]> {
837 let Inst{31-27} = 0b11111;
838 let Inst{26-25} = 0b00;
839 let Inst{24} = signed;
841 let Inst{22-21} = opcod;
842 let Inst{20} = 1; // load
845 let Inst{15-12} = Rt;
848 let Inst{19-16} = addr{16-13}; // Rn
849 let Inst{23} = addr{12}; // U
850 let Inst{11-0} = addr{11-0}; // imm
852 def i8 : T2Ii8 <(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), iii,
854 [(set GPR:$Rt, (opnode t2addrmode_imm8:$addr))]> {
855 let Inst{31-27} = 0b11111;
856 let Inst{26-25} = 0b00;
857 let Inst{24} = signed;
859 let Inst{22-21} = opcod;
860 let Inst{20} = 1; // load
862 // Offset: index==TRUE, wback==FALSE
863 let Inst{10} = 1; // The P bit.
864 let Inst{8} = 0; // The W bit.
867 let Inst{15-12} = Rt;
870 let Inst{19-16} = addr{12-9}; // Rn
871 let Inst{9} = addr{8}; // U
872 let Inst{7-0} = addr{7-0}; // imm
874 def s : T2Iso <(outs GPR:$Rt), (ins t2addrmode_so_reg:$addr), iis,
875 opc, ".w\t$Rt, $addr",
876 [(set GPR:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
877 let Inst{31-27} = 0b11111;
878 let Inst{26-25} = 0b00;
879 let Inst{24} = signed;
881 let Inst{22-21} = opcod;
882 let Inst{20} = 1; // load
883 let Inst{11-6} = 0b000000;
886 let Inst{15-12} = Rt;
889 let Inst{19-16} = addr{9-6}; // Rn
890 let Inst{3-0} = addr{5-2}; // Rm
891 let Inst{5-4} = addr{1-0}; // imm
894 def pci : tPseudoInst<(outs GPR:$Rt), (ins i32imm:$addr), Size4Bytes, iis,
895 [(set GPR:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]>;
898 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
899 multiclass T2I_st<bits<2> opcod, string opc,
900 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
901 def i12 : T2Ii12<(outs), (ins GPR:$Rt, t2addrmode_imm12:$addr), iii,
902 opc, ".w\t$Rt, $addr",
903 [(opnode GPR:$Rt, t2addrmode_imm12:$addr)]> {
904 let Inst{31-27} = 0b11111;
905 let Inst{26-23} = 0b0001;
906 let Inst{22-21} = opcod;
907 let Inst{20} = 0; // !load
910 let Inst{15-12} = Rt;
913 let Inst{19-16} = addr{16-13}; // Rn
914 let Inst{23} = addr{12}; // U
915 let Inst{11-0} = addr{11-0}; // imm
917 def i8 : T2Ii8 <(outs), (ins GPR:$Rt, t2addrmode_imm8:$addr), iii,
919 [(opnode GPR:$Rt, t2addrmode_imm8:$addr)]> {
920 let Inst{31-27} = 0b11111;
921 let Inst{26-23} = 0b0000;
922 let Inst{22-21} = opcod;
923 let Inst{20} = 0; // !load
925 // Offset: index==TRUE, wback==FALSE
926 let Inst{10} = 1; // The P bit.
927 let Inst{8} = 0; // The W bit.
930 let Inst{15-12} = Rt;
933 let Inst{19-16} = addr{12-9}; // Rn
934 let Inst{9} = addr{8}; // U
935 let Inst{7-0} = addr{7-0}; // imm
937 def s : T2Iso <(outs), (ins GPR:$Rt, t2addrmode_so_reg:$addr), iis,
938 opc, ".w\t$Rt, $addr",
939 [(opnode GPR:$Rt, t2addrmode_so_reg:$addr)]> {
940 let Inst{31-27} = 0b11111;
941 let Inst{26-23} = 0b0000;
942 let Inst{22-21} = opcod;
943 let Inst{20} = 0; // !load
944 let Inst{11-6} = 0b000000;
947 let Inst{15-12} = Rt;
950 let Inst{19-16} = addr{9-6}; // Rn
951 let Inst{3-0} = addr{5-2}; // Rm
952 let Inst{5-4} = addr{1-0}; // imm
956 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
957 /// register and one whose operand is a register rotated by 8/16/24.
958 multiclass T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> {
959 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
961 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
962 let Inst{31-27} = 0b11111;
963 let Inst{26-23} = 0b0100;
964 let Inst{22-20} = opcod;
965 let Inst{19-16} = 0b1111; // Rn
966 let Inst{15-12} = 0b1111;
968 let Inst{5-4} = 0b00; // rotate
970 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
971 opc, ".w\t$Rd, $Rm, ror $rot",
972 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]> {
973 let Inst{31-27} = 0b11111;
974 let Inst{26-23} = 0b0100;
975 let Inst{22-20} = opcod;
976 let Inst{19-16} = 0b1111; // Rn
977 let Inst{15-12} = 0b1111;
981 let Inst{5-4} = rot{1-0}; // rotate
985 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
986 multiclass T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
987 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
989 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>,
990 Requires<[HasT2ExtractPack, IsThumb2]> {
991 let Inst{31-27} = 0b11111;
992 let Inst{26-23} = 0b0100;
993 let Inst{22-20} = opcod;
994 let Inst{19-16} = 0b1111; // Rn
995 let Inst{15-12} = 0b1111;
997 let Inst{5-4} = 0b00; // rotate
999 def r_rot : T2TwoReg<(outs rGPR:$dst), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1000 opc, "\t$dst, $Rm, ror $rot",
1001 [(set rGPR:$dst, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
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;
1011 let Inst{5-4} = rot{1-0}; // rotate
1015 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1017 multiclass T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> {
1018 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1019 opc, "\t$Rd, $Rm", []> {
1020 let Inst{31-27} = 0b11111;
1021 let Inst{26-23} = 0b0100;
1022 let Inst{22-20} = opcod;
1023 let Inst{19-16} = 0b1111; // Rn
1024 let Inst{15-12} = 0b1111;
1026 let Inst{5-4} = 0b00; // rotate
1028 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1029 opc, "\t$Rd, $Rm, ror $rot", []> {
1030 let Inst{31-27} = 0b11111;
1031 let Inst{26-23} = 0b0100;
1032 let Inst{22-20} = opcod;
1033 let Inst{19-16} = 0b1111; // Rn
1034 let Inst{15-12} = 0b1111;
1038 let Inst{5-4} = rot{1-0}; // rotate
1042 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1043 /// register and one whose operand is a register rotated by 8/16/24.
1044 multiclass T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> {
1045 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1046 opc, "\t$Rd, $Rn, $Rm",
1047 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
1048 Requires<[HasT2ExtractPack, IsThumb2]> {
1049 let Inst{31-27} = 0b11111;
1050 let Inst{26-23} = 0b0100;
1051 let Inst{22-20} = opcod;
1052 let Inst{15-12} = 0b1111;
1054 let Inst{5-4} = 0b00; // rotate
1056 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1057 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot",
1058 [(set rGPR:$Rd, (opnode rGPR:$Rn,
1059 (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1060 Requires<[HasT2ExtractPack, IsThumb2]> {
1061 let Inst{31-27} = 0b11111;
1062 let Inst{26-23} = 0b0100;
1063 let Inst{22-20} = opcod;
1064 let Inst{15-12} = 0b1111;
1068 let Inst{5-4} = rot{1-0}; // rotate
1072 // DO variant - disassembly only, no pattern
1074 multiclass T2I_exta_rrot_DO<bits<3> opcod, string opc> {
1075 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1076 opc, "\t$Rd, $Rn, $Rm", []> {
1077 let Inst{31-27} = 0b11111;
1078 let Inst{26-23} = 0b0100;
1079 let Inst{22-20} = opcod;
1080 let Inst{15-12} = 0b1111;
1082 let Inst{5-4} = 0b00; // rotate
1084 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1085 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot", []> {
1086 let Inst{31-27} = 0b11111;
1087 let Inst{26-23} = 0b0100;
1088 let Inst{22-20} = opcod;
1089 let Inst{15-12} = 0b1111;
1093 let Inst{5-4} = rot{1-0}; // rotate
1097 //===----------------------------------------------------------------------===//
1099 //===----------------------------------------------------------------------===//
1101 //===----------------------------------------------------------------------===//
1102 // Miscellaneous Instructions.
1105 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1106 string asm, list<dag> pattern>
1107 : T2XI<oops, iops, itin, asm, pattern> {
1111 let Inst{11-8} = Rd;
1112 let Inst{26} = label{11};
1113 let Inst{14-12} = label{10-8};
1114 let Inst{7-0} = label{7-0};
1117 // LEApcrel - Load a pc-relative address into a register without offending the
1119 let neverHasSideEffects = 1 in {
1120 let isReMaterializable = 1 in
1121 def t2LEApcrel : T2PCOneRegImm<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p), IIC_iALUi,
1122 "adr${p}.w\t$Rd, #$label", []> {
1123 let Inst{31-27} = 0b11110;
1124 let Inst{25-24} = 0b10;
1125 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1128 let Inst{19-16} = 0b1111; // Rn
1133 } // neverHasSideEffects
1134 def t2LEApcrelJT : T2PCOneRegImm<(outs rGPR:$Rd),
1135 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
1136 "adr${p}.w\t$Rd, #${label}_${id}", []> {
1137 let Inst{31-27} = 0b11110;
1138 let Inst{25-24} = 0b10;
1139 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1142 let Inst{19-16} = 0b1111; // Rn
1146 // ADD r, sp, {so_imm|i12}
1147 def t2ADDrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1148 IIC_iALUi, "add", ".w\t$Rd, $sp, $imm", []> {
1149 let Inst{31-27} = 0b11110;
1151 let Inst{24-21} = 0b1000;
1152 let Inst{19-16} = 0b1101; // Rn = sp
1155 def t2ADDrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1156 IIC_iALUi, "addw", "\t$Rd, $sp, $imm", []> {
1157 let Inst{31-27} = 0b11110;
1159 let Inst{24-21} = 0b0000;
1160 let Inst{20} = 0; // The S bit.
1161 let Inst{19-16} = 0b1101; // Rn = sp
1165 // ADD r, sp, so_reg
1166 def t2ADDrSPs : T2sTwoRegShiftedReg<
1167 (outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$ShiftedRm),
1168 IIC_iALUsi, "add", ".w\t$Rd, $sp, $ShiftedRm", []> {
1169 let Inst{31-27} = 0b11101;
1170 let Inst{26-25} = 0b01;
1171 let Inst{24-21} = 0b1000;
1172 let Inst{19-16} = 0b1101; // Rn = sp
1176 // SUB r, sp, {so_imm|i12}
1177 def t2SUBrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1178 IIC_iALUi, "sub", ".w\t$Rd, $sp, $imm", []> {
1179 let Inst{31-27} = 0b11110;
1181 let Inst{24-21} = 0b1101;
1182 let Inst{19-16} = 0b1101; // Rn = sp
1185 def t2SUBrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1186 IIC_iALUi, "subw", "\t$Rd, $sp, $imm", []> {
1187 let Inst{31-27} = 0b11110;
1189 let Inst{24-21} = 0b0101;
1190 let Inst{20} = 0; // The S bit.
1191 let Inst{19-16} = 0b1101; // Rn = sp
1195 // SUB r, sp, so_reg
1196 def t2SUBrSPs : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$imm),
1198 "sub", "\t$Rd, $sp, $imm", []> {
1199 let Inst{31-27} = 0b11101;
1200 let Inst{26-25} = 0b01;
1201 let Inst{24-21} = 0b1101;
1202 let Inst{19-16} = 0b1101; // Rn = sp
1206 // Signed and unsigned division on v7-M
1207 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1208 "sdiv", "\t$Rd, $Rn, $Rm",
1209 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
1210 Requires<[HasDivide, IsThumb2]> {
1211 let Inst{31-27} = 0b11111;
1212 let Inst{26-21} = 0b011100;
1214 let Inst{15-12} = 0b1111;
1215 let Inst{7-4} = 0b1111;
1218 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1219 "udiv", "\t$Rd, $Rn, $Rm",
1220 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
1221 Requires<[HasDivide, IsThumb2]> {
1222 let Inst{31-27} = 0b11111;
1223 let Inst{26-21} = 0b011101;
1225 let Inst{15-12} = 0b1111;
1226 let Inst{7-4} = 0b1111;
1229 //===----------------------------------------------------------------------===//
1230 // Load / store Instructions.
1234 let canFoldAsLoad = 1, isReMaterializable = 1 in
1235 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
1236 UnOpFrag<(load node:$Src)>>;
1238 // Loads with zero extension
1239 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1240 UnOpFrag<(zextloadi16 node:$Src)>>;
1241 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1242 UnOpFrag<(zextloadi8 node:$Src)>>;
1244 // Loads with sign extension
1245 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1246 UnOpFrag<(sextloadi16 node:$Src)>>;
1247 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1248 UnOpFrag<(sextloadi8 node:$Src)>>;
1250 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1252 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1253 (ins t2addrmode_imm8s4:$addr),
1254 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", []>;
1255 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1257 // zextload i1 -> zextload i8
1258 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1259 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1260 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
1261 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1262 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1263 (t2LDRBs t2addrmode_so_reg:$addr)>;
1264 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1265 (t2LDRBpci tconstpool:$addr)>;
1267 // extload -> zextload
1268 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1270 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1271 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1272 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
1273 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1274 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1275 (t2LDRBs t2addrmode_so_reg:$addr)>;
1276 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1277 (t2LDRBpci tconstpool:$addr)>;
1279 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1280 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1281 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
1282 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1283 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1284 (t2LDRBs t2addrmode_so_reg:$addr)>;
1285 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1286 (t2LDRBpci tconstpool:$addr)>;
1288 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1289 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1290 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
1291 (t2LDRHi8 t2addrmode_imm8:$addr)>;
1292 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1293 (t2LDRHs t2addrmode_so_reg:$addr)>;
1294 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1295 (t2LDRHpci tconstpool:$addr)>;
1297 // FIXME: The destination register of the loads and stores can't be PC, but
1298 // can be SP. We need another regclass (similar to rGPR) to represent
1299 // that. Not a pressing issue since these are selected manually,
1304 class T2Iidxld<bit signed, bits<2> opcod, bit pre,
1306 AddrMode am, IndexMode im, InstrItinClass itin,
1307 string opc, string asm, string cstr, list<dag> pattern>
1308 : T2Iidxldst<signed, opcod, 1, pre, oops,
1309 iops, am,im,itin, opc, asm, cstr, pattern>;
1310 class T2Iidxst<bit signed, bits<2> opcod, bit pre,
1312 AddrMode am, IndexMode im, InstrItinClass itin,
1313 string opc, string asm, string cstr, list<dag> pattern>
1314 : T2Iidxldst<signed, opcod, 0, pre, oops,
1315 iops, am,im,itin, opc, asm, cstr, pattern>;
1317 let mayLoad = 1, neverHasSideEffects = 1 in {
1318 def t2LDR_PRE : T2Iidxld<0, 0b10, 1, (outs GPR:$Rt, GPR:$Rn),
1319 (ins t2addrmode_imm8:$addr),
1320 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1321 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1324 def t2LDR_POST : T2Iidxld<0, 0b10, 0, (outs GPR:$Rt, GPR:$Rn),
1325 (ins GPR:$base, t2am_imm8_offset:$offset),
1326 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1327 "ldr", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1330 def t2LDRB_PRE : T2Iidxld<0, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1331 (ins t2addrmode_imm8:$addr),
1332 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1333 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1335 def t2LDRB_POST : T2Iidxld<0, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1336 (ins GPR:$base, t2am_imm8_offset:$offset),
1337 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1338 "ldrb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1341 def t2LDRH_PRE : T2Iidxld<0, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1342 (ins t2addrmode_imm8:$addr),
1343 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1344 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1346 def t2LDRH_POST : T2Iidxld<0, 0b01, 0, (outs GPR:$Rt, GPR:$Rn),
1347 (ins GPR:$base, t2am_imm8_offset:$offset),
1348 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1349 "ldrh", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1352 def t2LDRSB_PRE : T2Iidxld<1, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1353 (ins t2addrmode_imm8:$addr),
1354 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1355 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1357 def t2LDRSB_POST : T2Iidxld<1, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1358 (ins GPR:$base, t2am_imm8_offset:$offset),
1359 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1360 "ldrsb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1363 def t2LDRSH_PRE : T2Iidxld<1, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1364 (ins t2addrmode_imm8:$addr),
1365 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1366 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1368 def t2LDRSH_POST : T2Iidxld<1, 0b01, 0, (outs GPR:$dst, GPR:$Rn),
1369 (ins GPR:$base, t2am_imm8_offset:$offset),
1370 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1371 "ldrsh", "\t$dst, [$Rn], $offset", "$base = $Rn",
1373 } // mayLoad = 1, neverHasSideEffects = 1
1375 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1376 // for disassembly only.
1377 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1378 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1379 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1380 "\t$Rt, $addr", []> {
1381 let Inst{31-27} = 0b11111;
1382 let Inst{26-25} = 0b00;
1383 let Inst{24} = signed;
1385 let Inst{22-21} = type;
1386 let Inst{20} = 1; // load
1388 let Inst{10-8} = 0b110; // PUW.
1392 let Inst{15-12} = Rt;
1393 let Inst{19-16} = addr{12-9};
1394 let Inst{7-0} = addr{7-0};
1397 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1398 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1399 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1400 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1401 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1404 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1405 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1406 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1407 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1408 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1409 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1412 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1413 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1414 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1415 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
1418 def t2STR_PRE : T2Iidxst<0, 0b10, 1, (outs GPR:$base_wb),
1419 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1420 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1421 "str", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1423 (pre_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1425 def t2STR_POST : T2Iidxst<0, 0b10, 0, (outs GPR:$base_wb),
1426 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1427 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1428 "str", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1430 (post_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1432 def t2STRH_PRE : T2Iidxst<0, 0b01, 1, (outs GPR:$base_wb),
1433 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1434 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1435 "strh", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1437 (pre_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1439 def t2STRH_POST : T2Iidxst<0, 0b01, 0, (outs GPR:$base_wb),
1440 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1441 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1442 "strh", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1444 (post_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1446 def t2STRB_PRE : T2Iidxst<0, 0b00, 1, (outs GPR:$base_wb),
1447 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1448 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1449 "strb", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1451 (pre_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1453 def t2STRB_POST : T2Iidxst<0, 0b00, 0, (outs GPR:$base_wb),
1454 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1455 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1456 "strb", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1458 (post_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1460 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1462 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1463 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1464 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1465 "\t$Rt, $addr", []> {
1466 let Inst{31-27} = 0b11111;
1467 let Inst{26-25} = 0b00;
1468 let Inst{24} = 0; // not signed
1470 let Inst{22-21} = type;
1471 let Inst{20} = 0; // store
1473 let Inst{10-8} = 0b110; // PUW
1477 let Inst{15-12} = Rt;
1478 let Inst{19-16} = addr{12-9};
1479 let Inst{7-0} = addr{7-0};
1482 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1483 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1484 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1486 // ldrd / strd pre / post variants
1487 // For disassembly only.
1489 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1490 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1491 "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1493 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1494 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1495 "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
1497 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1498 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1499 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1501 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1502 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1503 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
1505 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1506 // data/instruction access. These are for disassembly only.
1507 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1508 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1509 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1511 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1513 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1514 let Inst{31-25} = 0b1111100;
1515 let Inst{24} = instr;
1517 let Inst{21} = write;
1519 let Inst{15-12} = 0b1111;
1522 let Inst{19-16} = addr{16-13}; // Rn
1523 let Inst{23} = addr{12}; // U
1524 let Inst{11-0} = addr{11-0}; // imm12
1527 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1529 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1530 let Inst{31-25} = 0b1111100;
1531 let Inst{24} = instr;
1532 let Inst{23} = 0; // U = 0
1534 let Inst{21} = write;
1536 let Inst{15-12} = 0b1111;
1537 let Inst{11-8} = 0b1100;
1540 let Inst{19-16} = addr{12-9}; // Rn
1541 let Inst{7-0} = addr{7-0}; // imm8
1544 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1546 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1547 let Inst{31-25} = 0b1111100;
1548 let Inst{24} = instr;
1549 let Inst{23} = 0; // add = TRUE for T1
1551 let Inst{21} = write;
1553 let Inst{15-12} = 0b1111;
1554 let Inst{11-6} = 0000000;
1557 let Inst{19-16} = addr{9-6}; // Rn
1558 let Inst{3-0} = addr{5-2}; // Rm
1559 let Inst{5-4} = addr{1-0}; // imm2
1563 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1564 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1565 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1567 //===----------------------------------------------------------------------===//
1568 // Load / store multiple Instructions.
1571 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1572 InstrItinClass itin_upd, bit L_bit> {
1574 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1575 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1579 let Inst{31-27} = 0b11101;
1580 let Inst{26-25} = 0b00;
1581 let Inst{24-23} = 0b01; // Increment After
1583 let Inst{21} = 0; // No writeback
1584 let Inst{20} = L_bit;
1585 let Inst{19-16} = Rn;
1586 let Inst{15-0} = regs;
1589 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1590 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1594 let Inst{31-27} = 0b11101;
1595 let Inst{26-25} = 0b00;
1596 let Inst{24-23} = 0b01; // Increment After
1598 let Inst{21} = 1; // Writeback
1599 let Inst{20} = L_bit;
1600 let Inst{19-16} = Rn;
1601 let Inst{15-0} = regs;
1604 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1605 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1609 let Inst{31-27} = 0b11101;
1610 let Inst{26-25} = 0b00;
1611 let Inst{24-23} = 0b10; // Decrement Before
1613 let Inst{21} = 0; // No writeback
1614 let Inst{20} = L_bit;
1615 let Inst{19-16} = Rn;
1616 let Inst{15-0} = regs;
1619 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1620 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1624 let Inst{31-27} = 0b11101;
1625 let Inst{26-25} = 0b00;
1626 let Inst{24-23} = 0b10; // Decrement Before
1628 let Inst{21} = 1; // Writeback
1629 let Inst{20} = L_bit;
1630 let Inst{19-16} = Rn;
1631 let Inst{15-0} = regs;
1635 let neverHasSideEffects = 1 in {
1637 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1638 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1640 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1641 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1643 } // neverHasSideEffects
1646 //===----------------------------------------------------------------------===//
1647 // Move Instructions.
1650 let neverHasSideEffects = 1 in
1651 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1652 "mov", ".w\t$Rd, $Rm", []> {
1653 let Inst{31-27} = 0b11101;
1654 let Inst{26-25} = 0b01;
1655 let Inst{24-21} = 0b0010;
1656 let Inst{19-16} = 0b1111; // Rn
1657 let Inst{14-12} = 0b000;
1658 let Inst{7-4} = 0b0000;
1661 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1662 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1663 AddedComplexity = 1 in
1664 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1665 "mov", ".w\t$Rd, $imm",
1666 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1667 let Inst{31-27} = 0b11110;
1669 let Inst{24-21} = 0b0010;
1670 let Inst{19-16} = 0b1111; // Rn
1674 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1675 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins i32imm:$imm), IIC_iMOVi,
1676 "movw", "\t$Rd, $imm",
1677 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1678 let Inst{31-27} = 0b11110;
1680 let Inst{24-21} = 0b0010;
1681 let Inst{20} = 0; // The S bit.
1687 let Inst{11-8} = Rd;
1688 let Inst{19-16} = imm{15-12};
1689 let Inst{26} = imm{11};
1690 let Inst{14-12} = imm{10-8};
1691 let Inst{7-0} = imm{7-0};
1694 let Constraints = "$src = $Rd" in
1695 def t2MOVTi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1696 "movt", "\t$Rd, $imm",
1698 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1699 let Inst{31-27} = 0b11110;
1701 let Inst{24-21} = 0b0110;
1702 let Inst{20} = 0; // The S bit.
1708 let Inst{11-8} = Rd;
1709 let Inst{19-16} = imm{15-12};
1710 let Inst{26} = imm{11};
1711 let Inst{14-12} = imm{10-8};
1712 let Inst{7-0} = imm{7-0};
1715 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1717 //===----------------------------------------------------------------------===//
1718 // Extend Instructions.
1723 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1724 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1725 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1726 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1727 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1729 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1730 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1731 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1732 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1733 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1735 // TODO: SXT(A){B|H}16 - done for disassembly only
1739 let AddedComplexity = 16 in {
1740 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1741 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1742 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1743 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1744 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1745 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1747 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1748 // The transformation should probably be done as a combiner action
1749 // instead so we can include a check for masking back in the upper
1750 // eight bits of the source into the lower eight bits of the result.
1751 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1752 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1753 // Requires<[HasT2ExtractPack, IsThumb2]>;
1754 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1755 (t2UXTB16r_rot rGPR:$Src, 8)>,
1756 Requires<[HasT2ExtractPack, IsThumb2]>;
1758 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1759 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1760 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1761 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1762 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1765 //===----------------------------------------------------------------------===//
1766 // Arithmetic Instructions.
1769 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1770 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1771 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1772 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1774 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1775 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1776 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1777 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1778 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1779 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1780 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1782 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1783 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1784 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1785 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1786 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1787 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1788 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1789 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1792 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1793 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1794 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1795 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1797 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1798 // The assume-no-carry-in form uses the negation of the input since add/sub
1799 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1800 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1802 // The AddedComplexity preferences the first variant over the others since
1803 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1804 let AddedComplexity = 1 in
1805 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1806 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1807 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1808 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1809 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1810 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1811 let AddedComplexity = 1 in
1812 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1813 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1814 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1815 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1816 // The with-carry-in form matches bitwise not instead of the negation.
1817 // Effectively, the inverse interpretation of the carry flag already accounts
1818 // for part of the negation.
1819 let AddedComplexity = 1 in
1820 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1821 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1822 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1823 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1825 // Select Bytes -- for disassembly only
1827 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1828 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []> {
1829 let Inst{31-27} = 0b11111;
1830 let Inst{26-24} = 0b010;
1832 let Inst{22-20} = 0b010;
1833 let Inst{15-12} = 0b1111;
1835 let Inst{6-4} = 0b000;
1838 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1839 // And Miscellaneous operations -- for disassembly only
1840 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1841 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1842 : T2I<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), NoItinerary, opc,
1843 "\t$Rd, $Rn, $Rm", pat> {
1844 let Inst{31-27} = 0b11111;
1845 let Inst{26-23} = 0b0101;
1846 let Inst{22-20} = op22_20;
1847 let Inst{15-12} = 0b1111;
1848 let Inst{7-4} = op7_4;
1854 let Inst{11-8} = Rd;
1855 let Inst{19-16} = Rn;
1859 // Saturating add/subtract -- for disassembly only
1861 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1862 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))]>;
1863 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1864 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1865 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1866 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1867 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1868 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1869 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1870 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))]>;
1871 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1872 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1873 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1874 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1875 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1876 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1877 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1878 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1880 // Signed/Unsigned add/subtract -- for disassembly only
1882 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1883 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1884 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1885 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1886 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1887 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1888 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1889 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1890 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1891 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1892 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1893 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1895 // Signed/Unsigned halving add/subtract -- for disassembly only
1897 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1898 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1899 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1900 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1901 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1902 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1903 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1904 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1905 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1906 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1907 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1908 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1910 // Helper class for disassembly only
1911 // A6.3.16 & A6.3.17
1912 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1913 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1914 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1915 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1916 let Inst{31-27} = 0b11111;
1917 let Inst{26-24} = 0b011;
1918 let Inst{23} = long;
1919 let Inst{22-20} = op22_20;
1920 let Inst{7-4} = op7_4;
1923 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1924 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1925 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1926 let Inst{31-27} = 0b11111;
1927 let Inst{26-24} = 0b011;
1928 let Inst{23} = long;
1929 let Inst{22-20} = op22_20;
1930 let Inst{7-4} = op7_4;
1933 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1935 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1936 (ins rGPR:$Rn, rGPR:$Rm),
1937 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []> {
1938 let Inst{15-12} = 0b1111;
1940 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1941 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1942 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>;
1944 // Signed/Unsigned saturate -- for disassembly only
1946 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1947 string opc, string asm, list<dag> pattern>
1948 : T2I<oops, iops, itin, opc, asm, pattern> {
1954 let Inst{11-8} = Rd;
1955 let Inst{19-16} = Rn;
1956 let Inst{4-0} = sat_imm{4-0};
1957 let Inst{21} = sh{6};
1958 let Inst{14-12} = sh{4-2};
1959 let Inst{7-6} = sh{1-0};
1963 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1964 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1965 [/* For disassembly only; pattern left blank */]> {
1966 let Inst{31-27} = 0b11110;
1967 let Inst{25-22} = 0b1100;
1972 def t2SSAT16: T2SatI<
1973 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
1974 "ssat16", "\t$Rd, $sat_imm, $Rn",
1975 [/* For disassembly only; pattern left blank */]> {
1976 let Inst{31-27} = 0b11110;
1977 let Inst{25-22} = 0b1100;
1980 let Inst{21} = 1; // sh = '1'
1981 let Inst{14-12} = 0b000; // imm3 = '000'
1982 let Inst{7-6} = 0b00; // imm2 = '00'
1986 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1987 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
1988 [/* For disassembly only; pattern left blank */]> {
1989 let Inst{31-27} = 0b11110;
1990 let Inst{25-22} = 0b1110;
1995 def t2USAT16: T2SatI<
1996 (outs rGPR:$dst), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
1997 "usat16", "\t$dst, $sat_imm, $Rn",
1998 [/* For disassembly only; pattern left blank */]> {
1999 let Inst{31-27} = 0b11110;
2000 let Inst{25-22} = 0b1110;
2003 let Inst{21} = 1; // sh = '1'
2004 let Inst{14-12} = 0b000; // imm3 = '000'
2005 let Inst{7-6} = 0b00; // imm2 = '00'
2008 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2009 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2011 //===----------------------------------------------------------------------===//
2012 // Shift and rotate Instructions.
2015 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2016 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2017 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2018 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2020 let Uses = [CPSR] in {
2021 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2022 "rrx", "\t$Rd, $Rm",
2023 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2024 let Inst{31-27} = 0b11101;
2025 let Inst{26-25} = 0b01;
2026 let Inst{24-21} = 0b0010;
2027 let Inst{19-16} = 0b1111; // Rn
2028 let Inst{14-12} = 0b000;
2029 let Inst{7-4} = 0b0011;
2033 let Defs = [CPSR] in {
2034 def t2MOVsrl_flag : T2TwoRegShiftImm<
2035 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2036 "lsrs", ".w\t$Rd, $Rm, #1",
2037 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2038 let Inst{31-27} = 0b11101;
2039 let Inst{26-25} = 0b01;
2040 let Inst{24-21} = 0b0010;
2041 let Inst{20} = 1; // The S bit.
2042 let Inst{19-16} = 0b1111; // Rn
2043 let Inst{5-4} = 0b01; // Shift type.
2044 // Shift amount = Inst{14-12:7-6} = 1.
2045 let Inst{14-12} = 0b000;
2046 let Inst{7-6} = 0b01;
2048 def t2MOVsra_flag : T2TwoRegShiftImm<
2049 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2050 "asrs", ".w\t$Rd, $Rm, #1",
2051 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2052 let Inst{31-27} = 0b11101;
2053 let Inst{26-25} = 0b01;
2054 let Inst{24-21} = 0b0010;
2055 let Inst{20} = 1; // The S bit.
2056 let Inst{19-16} = 0b1111; // Rn
2057 let Inst{5-4} = 0b10; // Shift type.
2058 // Shift amount = Inst{14-12:7-6} = 1.
2059 let Inst{14-12} = 0b000;
2060 let Inst{7-6} = 0b01;
2064 //===----------------------------------------------------------------------===//
2065 // Bitwise Instructions.
2068 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2069 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2070 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2071 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2072 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2073 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2074 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2075 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2076 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2078 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2079 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2080 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2082 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2083 string opc, string asm, list<dag> pattern>
2084 : T2I<oops, iops, itin, opc, asm, pattern> {
2089 let Inst{11-8} = Rd;
2090 let Inst{4-0} = msb{4-0};
2091 let Inst{14-12} = lsb{4-2};
2092 let Inst{7-6} = lsb{1-0};
2095 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2096 string opc, string asm, list<dag> pattern>
2097 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2100 let Inst{19-16} = Rn;
2103 let Constraints = "$src = $Rd" in
2104 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2105 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2106 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2107 let Inst{31-27} = 0b11110;
2109 let Inst{24-20} = 0b10110;
2110 let Inst{19-16} = 0b1111; // Rn
2114 let msb{4-0} = imm{9-5};
2115 let lsb{4-0} = imm{4-0};
2118 def t2SBFX: T2TwoRegBitFI<
2119 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2120 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2121 let Inst{31-27} = 0b11110;
2123 let Inst{24-20} = 0b10100;
2127 def t2UBFX: T2TwoRegBitFI<
2128 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2129 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2130 let Inst{31-27} = 0b11110;
2132 let Inst{24-20} = 0b11100;
2136 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2137 let Constraints = "$src = $Rd" in
2138 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2139 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2140 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2141 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2142 bf_inv_mask_imm:$imm))]> {
2143 let Inst{31-27} = 0b11110;
2145 let Inst{24-20} = 0b10110;
2149 let msb{4-0} = imm{9-5};
2150 let lsb{4-0} = imm{4-0};
2153 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2154 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2155 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2157 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2158 let AddedComplexity = 1 in
2159 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2160 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2161 UnOpFrag<(not node:$Src)>, 1, 1>;
2164 let AddedComplexity = 1 in
2165 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2166 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2168 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2169 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2170 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2171 Requires<[IsThumb2]>;
2173 def : T2Pat<(t2_so_imm_not:$src),
2174 (t2MVNi t2_so_imm_not:$src)>;
2176 //===----------------------------------------------------------------------===//
2177 // Multiply Instructions.
2179 let isCommutable = 1 in
2180 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2181 "mul", "\t$Rd, $Rn, $Rm",
2182 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2183 let Inst{31-27} = 0b11111;
2184 let Inst{26-23} = 0b0110;
2185 let Inst{22-20} = 0b000;
2186 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2187 let Inst{7-4} = 0b0000; // Multiply
2190 def t2MLA: T2FourReg<
2191 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2192 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2193 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2194 let Inst{31-27} = 0b11111;
2195 let Inst{26-23} = 0b0110;
2196 let Inst{22-20} = 0b000;
2197 let Inst{7-4} = 0b0000; // Multiply
2200 def t2MLS: T2FourReg<
2201 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2202 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2203 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2204 let Inst{31-27} = 0b11111;
2205 let Inst{26-23} = 0b0110;
2206 let Inst{22-20} = 0b000;
2207 let Inst{7-4} = 0b0001; // Multiply and Subtract
2210 // Extra precision multiplies with low / high results
2211 let neverHasSideEffects = 1 in {
2212 let isCommutable = 1 in {
2213 def t2SMULL : T2MulLong<0b000, 0b0000,
2214 (outs rGPR:$Rd, rGPR:$Ra),
2215 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2216 "smull", "\t$Rd, $Ra, $Rn, $Rm", []>;
2218 def t2UMULL : T2MulLong<0b010, 0b0000,
2219 (outs rGPR:$RdLo, rGPR:$RdHi),
2220 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2221 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2224 // Multiply + accumulate
2225 def t2SMLAL : T2MulLong<0b100, 0b0000,
2226 (outs rGPR:$RdLo, rGPR:$RdHi),
2227 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2228 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2230 def t2UMLAL : T2MulLong<0b110, 0b0000,
2231 (outs rGPR:$RdLo, rGPR:$RdHi),
2232 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2233 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2235 def t2UMAAL : T2MulLong<0b110, 0b0110,
2236 (outs rGPR:$RdLo, rGPR:$RdHi),
2237 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2238 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2239 } // neverHasSideEffects
2241 // Rounding variants of the below included for disassembly only
2243 // Most significant word multiply
2244 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2245 "smmul", "\t$Rd, $Rn, $Rm",
2246 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]> {
2247 let Inst{31-27} = 0b11111;
2248 let Inst{26-23} = 0b0110;
2249 let Inst{22-20} = 0b101;
2250 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2251 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2254 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2255 "smmulr", "\t$Rd, $Rn, $Rm", []> {
2256 let Inst{31-27} = 0b11111;
2257 let Inst{26-23} = 0b0110;
2258 let Inst{22-20} = 0b101;
2259 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2260 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2263 def t2SMMLA : T2FourReg<
2264 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2265 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2266 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]> {
2267 let Inst{31-27} = 0b11111;
2268 let Inst{26-23} = 0b0110;
2269 let Inst{22-20} = 0b101;
2270 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2273 def t2SMMLAR: T2FourReg<
2274 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2275 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []> {
2276 let Inst{31-27} = 0b11111;
2277 let Inst{26-23} = 0b0110;
2278 let Inst{22-20} = 0b101;
2279 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2282 def t2SMMLS: T2FourReg<
2283 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2284 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2285 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]> {
2286 let Inst{31-27} = 0b11111;
2287 let Inst{26-23} = 0b0110;
2288 let Inst{22-20} = 0b110;
2289 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2292 def t2SMMLSR:T2FourReg<
2293 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2294 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []> {
2295 let Inst{31-27} = 0b11111;
2296 let Inst{26-23} = 0b0110;
2297 let Inst{22-20} = 0b110;
2298 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2301 multiclass T2I_smul<string opc, PatFrag opnode> {
2302 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2303 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2304 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2305 (sext_inreg rGPR:$Rm, i16)))]> {
2306 let Inst{31-27} = 0b11111;
2307 let Inst{26-23} = 0b0110;
2308 let Inst{22-20} = 0b001;
2309 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2310 let Inst{7-6} = 0b00;
2311 let Inst{5-4} = 0b00;
2314 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2315 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2316 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2317 (sra rGPR:$Rm, (i32 16))))]> {
2318 let Inst{31-27} = 0b11111;
2319 let Inst{26-23} = 0b0110;
2320 let Inst{22-20} = 0b001;
2321 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2322 let Inst{7-6} = 0b00;
2323 let Inst{5-4} = 0b01;
2326 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2327 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2328 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2329 (sext_inreg rGPR:$Rm, i16)))]> {
2330 let Inst{31-27} = 0b11111;
2331 let Inst{26-23} = 0b0110;
2332 let Inst{22-20} = 0b001;
2333 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2334 let Inst{7-6} = 0b00;
2335 let Inst{5-4} = 0b10;
2338 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2339 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2340 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2341 (sra rGPR:$Rm, (i32 16))))]> {
2342 let Inst{31-27} = 0b11111;
2343 let Inst{26-23} = 0b0110;
2344 let Inst{22-20} = 0b001;
2345 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2346 let Inst{7-6} = 0b00;
2347 let Inst{5-4} = 0b11;
2350 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2351 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2352 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2353 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]> {
2354 let Inst{31-27} = 0b11111;
2355 let Inst{26-23} = 0b0110;
2356 let Inst{22-20} = 0b011;
2357 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2358 let Inst{7-6} = 0b00;
2359 let Inst{5-4} = 0b00;
2362 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2363 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2364 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2365 (sra rGPR:$Rm, (i32 16))), (i32 16)))]> {
2366 let Inst{31-27} = 0b11111;
2367 let Inst{26-23} = 0b0110;
2368 let Inst{22-20} = 0b011;
2369 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2370 let Inst{7-6} = 0b00;
2371 let Inst{5-4} = 0b01;
2376 multiclass T2I_smla<string opc, PatFrag opnode> {
2378 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2379 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2380 [(set rGPR:$Rd, (add rGPR:$Ra,
2381 (opnode (sext_inreg rGPR:$Rn, i16),
2382 (sext_inreg rGPR:$Rm, i16))))]> {
2383 let Inst{31-27} = 0b11111;
2384 let Inst{26-23} = 0b0110;
2385 let Inst{22-20} = 0b001;
2386 let Inst{7-6} = 0b00;
2387 let Inst{5-4} = 0b00;
2391 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2392 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2393 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2394 (sra rGPR:$Rm, (i32 16)))))]> {
2395 let Inst{31-27} = 0b11111;
2396 let Inst{26-23} = 0b0110;
2397 let Inst{22-20} = 0b001;
2398 let Inst{7-6} = 0b00;
2399 let Inst{5-4} = 0b01;
2403 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2404 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2405 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2406 (sext_inreg rGPR:$Rm, i16))))]> {
2407 let Inst{31-27} = 0b11111;
2408 let Inst{26-23} = 0b0110;
2409 let Inst{22-20} = 0b001;
2410 let Inst{7-6} = 0b00;
2411 let Inst{5-4} = 0b10;
2415 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2416 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2417 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2418 (sra rGPR:$Rm, (i32 16)))))]> {
2419 let Inst{31-27} = 0b11111;
2420 let Inst{26-23} = 0b0110;
2421 let Inst{22-20} = 0b001;
2422 let Inst{7-6} = 0b00;
2423 let Inst{5-4} = 0b11;
2427 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2428 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2429 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2430 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]> {
2431 let Inst{31-27} = 0b11111;
2432 let Inst{26-23} = 0b0110;
2433 let Inst{22-20} = 0b011;
2434 let Inst{7-6} = 0b00;
2435 let Inst{5-4} = 0b00;
2439 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2440 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2441 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2442 (sra rGPR:$Rm, (i32 16))), (i32 16))))]> {
2443 let Inst{31-27} = 0b11111;
2444 let Inst{26-23} = 0b0110;
2445 let Inst{22-20} = 0b011;
2446 let Inst{7-6} = 0b00;
2447 let Inst{5-4} = 0b01;
2451 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2452 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2454 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2455 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2456 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2457 [/* For disassembly only; pattern left blank */]>;
2458 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2459 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2460 [/* For disassembly only; pattern left blank */]>;
2461 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2462 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2463 [/* For disassembly only; pattern left blank */]>;
2464 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2465 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2466 [/* For disassembly only; pattern left blank */]>;
2468 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2469 // These are for disassembly only.
2471 def t2SMUAD: T2ThreeReg_mac<
2472 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2473 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []> {
2474 let Inst{15-12} = 0b1111;
2476 def t2SMUADX:T2ThreeReg_mac<
2477 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2478 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []> {
2479 let Inst{15-12} = 0b1111;
2481 def t2SMUSD: T2ThreeReg_mac<
2482 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2483 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []> {
2484 let Inst{15-12} = 0b1111;
2486 def t2SMUSDX:T2ThreeReg_mac<
2487 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2488 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []> {
2489 let Inst{15-12} = 0b1111;
2491 def t2SMLAD : T2ThreeReg_mac<
2492 0, 0b010, 0b0000, (outs rGPR:$Rd),
2493 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2494 "\t$Rd, $Rn, $Rm, $Ra", []>;
2495 def t2SMLADX : T2FourReg_mac<
2496 0, 0b010, 0b0001, (outs rGPR:$Rd),
2497 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2498 "\t$Rd, $Rn, $Rm, $Ra", []>;
2499 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2500 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2501 "\t$Rd, $Rn, $Rm, $Ra", []>;
2502 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2503 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2504 "\t$Rd, $Rn, $Rm, $Ra", []>;
2505 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2506 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2507 "\t$Ra, $Rd, $Rm, $Rn", []>;
2508 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2509 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2510 "\t$Ra, $Rd, $Rm, $Rn", []>;
2511 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2512 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2513 "\t$Ra, $Rd, $Rm, $Rn", []>;
2514 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2515 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2516 "\t$Ra, $Rd, $Rm, $Rn", []>;
2518 //===----------------------------------------------------------------------===//
2519 // Misc. Arithmetic Instructions.
2522 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2523 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2524 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2525 let Inst{31-27} = 0b11111;
2526 let Inst{26-22} = 0b01010;
2527 let Inst{21-20} = op1;
2528 let Inst{15-12} = 0b1111;
2529 let Inst{7-6} = 0b10;
2530 let Inst{5-4} = op2;
2534 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2535 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2537 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2538 "rbit", "\t$Rd, $Rm",
2539 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2541 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2542 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2544 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2545 "rev16", ".w\t$Rd, $Rm",
2547 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF),
2548 (or (and (shl rGPR:$Rm, (i32 8)), 0xFF00),
2549 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF0000),
2550 (and (shl rGPR:$Rm, (i32 8)), 0xFF000000)))))]>;
2552 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2553 "revsh", ".w\t$Rd, $Rm",
2556 (or (srl (and rGPR:$Rm, 0xFF00), (i32 8)),
2557 (shl rGPR:$Rm, (i32 8))), i16))]>;
2559 def t2PKHBT : T2ThreeReg<
2560 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2561 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2562 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2563 (and (shl rGPR:$Rm, lsl_amt:$sh),
2565 Requires<[HasT2ExtractPack, IsThumb2]> {
2566 let Inst{31-27} = 0b11101;
2567 let Inst{26-25} = 0b01;
2568 let Inst{24-20} = 0b01100;
2569 let Inst{5} = 0; // BT form
2573 let Inst{14-12} = sh{7-5};
2574 let Inst{7-6} = sh{4-3};
2577 // Alternate cases for PKHBT where identities eliminate some nodes.
2578 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2579 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2580 Requires<[HasT2ExtractPack, IsThumb2]>;
2581 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2582 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2583 Requires<[HasT2ExtractPack, IsThumb2]>;
2585 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2586 // will match the pattern below.
2587 def t2PKHTB : T2ThreeReg<
2588 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2589 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2590 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2591 (and (sra rGPR:$Rm, asr_amt:$sh),
2593 Requires<[HasT2ExtractPack, IsThumb2]> {
2594 let Inst{31-27} = 0b11101;
2595 let Inst{26-25} = 0b01;
2596 let Inst{24-20} = 0b01100;
2597 let Inst{5} = 1; // TB form
2601 let Inst{14-12} = sh{7-5};
2602 let Inst{7-6} = sh{4-3};
2605 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2606 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2607 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2608 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2609 Requires<[HasT2ExtractPack, IsThumb2]>;
2610 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2611 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2612 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2613 Requires<[HasT2ExtractPack, IsThumb2]>;
2615 //===----------------------------------------------------------------------===//
2616 // Comparison Instructions...
2618 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2619 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2620 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2622 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_imm:$imm),
2623 (t2CMPri GPR:$lhs, t2_so_imm:$imm)>;
2624 def : T2Pat<(ARMcmpZ GPR:$lhs, rGPR:$rhs),
2625 (t2CMPrr GPR:$lhs, rGPR:$rhs)>;
2626 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_reg:$rhs),
2627 (t2CMPrs GPR:$lhs, t2_so_reg:$rhs)>;
2629 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2630 // Compare-to-zero still works out, just not the relationals
2631 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2632 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2633 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2634 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2635 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2637 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2638 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2640 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2641 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2643 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2644 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2645 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2646 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2647 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2648 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2650 // Conditional moves
2651 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2652 // a two-value operand where a dag node expects two operands. :(
2653 let neverHasSideEffects = 1 in {
2654 def t2MOVCCr : T2TwoReg<
2655 (outs rGPR:$Rd), (ins rGPR:$false, rGPR:$Rm), IIC_iCMOVr,
2656 "mov", ".w\t$Rd, $Rm",
2657 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2658 RegConstraint<"$false = $Rd"> {
2659 let Inst{31-27} = 0b11101;
2660 let Inst{26-25} = 0b01;
2661 let Inst{24-21} = 0b0010;
2662 let Inst{20} = 0; // The S bit.
2663 let Inst{19-16} = 0b1111; // Rn
2664 let Inst{14-12} = 0b000;
2665 let Inst{7-4} = 0b0000;
2668 let isMoveImm = 1 in
2669 def t2MOVCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2670 IIC_iCMOVi, "mov", ".w\t$Rd, $imm",
2671 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2672 RegConstraint<"$false = $Rd"> {
2673 let Inst{31-27} = 0b11110;
2675 let Inst{24-21} = 0b0010;
2676 let Inst{20} = 0; // The S bit.
2677 let Inst{19-16} = 0b1111; // Rn
2681 let isMoveImm = 1 in
2682 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, i32imm:$imm),
2684 "movw", "\t$Rd, $imm", []>,
2685 RegConstraint<"$false = $Rd"> {
2686 let Inst{31-27} = 0b11110;
2688 let Inst{24-21} = 0b0010;
2689 let Inst{20} = 0; // The S bit.
2695 let Inst{11-8} = Rd;
2696 let Inst{19-16} = imm{15-12};
2697 let Inst{26} = imm{11};
2698 let Inst{14-12} = imm{10-8};
2699 let Inst{7-0} = imm{7-0};
2702 let isMoveImm = 1 in
2703 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2704 (ins rGPR:$false, i32imm:$src, pred:$p),
2705 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2707 let isMoveImm = 1 in
2708 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2709 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2710 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2711 imm:$cc, CCR:$ccr))*/]>,
2712 RegConstraint<"$false = $Rd"> {
2713 let Inst{31-27} = 0b11110;
2715 let Inst{24-21} = 0b0011;
2716 let Inst{20} = 0; // The S bit.
2717 let Inst{19-16} = 0b1111; // Rn
2721 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2722 string opc, string asm, list<dag> pattern>
2723 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2724 let Inst{31-27} = 0b11101;
2725 let Inst{26-25} = 0b01;
2726 let Inst{24-21} = 0b0010;
2727 let Inst{20} = 0; // The S bit.
2728 let Inst{19-16} = 0b1111; // Rn
2729 let Inst{5-4} = opcod; // Shift type.
2731 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2732 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2733 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2734 RegConstraint<"$false = $Rd">;
2735 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2736 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2737 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2738 RegConstraint<"$false = $Rd">;
2739 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2740 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2741 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2742 RegConstraint<"$false = $Rd">;
2743 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2744 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2745 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2746 RegConstraint<"$false = $Rd">;
2747 } // neverHasSideEffects
2749 //===----------------------------------------------------------------------===//
2750 // Atomic operations intrinsics
2753 // memory barriers protect the atomic sequences
2754 let hasSideEffects = 1 in {
2755 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2756 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2757 Requires<[IsThumb, HasDB]> {
2759 let Inst{31-4} = 0xf3bf8f5;
2760 let Inst{3-0} = opt;
2764 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2766 [/* For disassembly only; pattern left blank */]>,
2767 Requires<[IsThumb, HasDB]> {
2769 let Inst{31-4} = 0xf3bf8f4;
2770 let Inst{3-0} = opt;
2773 // ISB has only full system option -- for disassembly only
2774 def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
2775 [/* For disassembly only; pattern left blank */]>,
2776 Requires<[IsThumb2, HasV7]> {
2777 let Inst{31-4} = 0xf3bf8f6;
2778 let Inst{3-0} = 0b1111;
2781 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2782 InstrItinClass itin, string opc, string asm, string cstr,
2783 list<dag> pattern, bits<4> rt2 = 0b1111>
2784 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2785 let Inst{31-27} = 0b11101;
2786 let Inst{26-20} = 0b0001101;
2787 let Inst{11-8} = rt2;
2788 let Inst{7-6} = 0b01;
2789 let Inst{5-4} = opcod;
2790 let Inst{3-0} = 0b1111;
2794 let Inst{19-16} = Rn;
2795 let Inst{15-12} = Rt;
2797 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2798 InstrItinClass itin, string opc, string asm, string cstr,
2799 list<dag> pattern, bits<4> rt2 = 0b1111>
2800 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2801 let Inst{31-27} = 0b11101;
2802 let Inst{26-20} = 0b0001100;
2803 let Inst{11-8} = rt2;
2804 let Inst{7-6} = 0b01;
2805 let Inst{5-4} = opcod;
2810 let Inst{11-8} = Rd;
2811 let Inst{19-16} = Rn;
2812 let Inst{15-12} = Rt;
2815 let mayLoad = 1 in {
2816 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2817 Size4Bytes, NoItinerary, "ldrexb", "\t$Rt, [$Rn]",
2819 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2820 Size4Bytes, NoItinerary, "ldrexh", "\t$Rt, [$Rn]",
2822 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2823 Size4Bytes, NoItinerary,
2824 "ldrex", "\t$Rt, [$Rn]", "",
2826 let Inst{31-27} = 0b11101;
2827 let Inst{26-20} = 0b0000101;
2828 let Inst{11-8} = 0b1111;
2829 let Inst{7-0} = 0b00000000; // imm8 = 0
2831 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2), (ins rGPR:$Rn),
2832 AddrModeNone, Size4Bytes, NoItinerary,
2833 "ldrexd", "\t$Rt, $Rt2, [$Rn]", "",
2836 let Inst{11-8} = Rt2;
2840 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2841 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2842 AddrModeNone, Size4Bytes, NoItinerary,
2843 "strexb", "\t$Rd, $Rt, [$Rn]", "", []>;
2844 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2845 AddrModeNone, Size4Bytes, NoItinerary,
2846 "strexh", "\t$Rd, $Rt, [$Rn]", "", []>;
2847 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2848 AddrModeNone, Size4Bytes, NoItinerary,
2849 "strex", "\t$Rd, $Rt, [$Rn]", "",
2851 let Inst{31-27} = 0b11101;
2852 let Inst{26-20} = 0b0000100;
2853 let Inst{7-0} = 0b00000000; // imm8 = 0
2855 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2856 (ins rGPR:$Rt, rGPR:$Rt2, rGPR:$Rn),
2857 AddrModeNone, Size4Bytes, NoItinerary,
2858 "strexd", "\t$Rd, $Rt, $Rt2, [$Rn]", "", [],
2861 let Inst{11-8} = Rt2;
2865 // Clear-Exclusive is for disassembly only.
2866 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2867 [/* For disassembly only; pattern left blank */]>,
2868 Requires<[IsARM, HasV7]> {
2869 let Inst{31-20} = 0xf3b;
2870 let Inst{15-14} = 0b10;
2872 let Inst{7-4} = 0b0010;
2875 //===----------------------------------------------------------------------===//
2879 // __aeabi_read_tp preserves the registers r1-r3.
2881 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
2882 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2883 "bl\t__aeabi_read_tp",
2884 [(set R0, ARMthread_pointer)]> {
2885 let Inst{31-27} = 0b11110;
2886 let Inst{15-14} = 0b11;
2891 //===----------------------------------------------------------------------===//
2892 // SJLJ Exception handling intrinsics
2893 // eh_sjlj_setjmp() is an instruction sequence to store the return
2894 // address and save #0 in R0 for the non-longjmp case.
2895 // Since by its nature we may be coming from some other function to get
2896 // here, and we're using the stack frame for the containing function to
2897 // save/restore registers, we can't keep anything live in regs across
2898 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2899 // when we get here from a longjmp(). We force everthing out of registers
2900 // except for our own input by listing the relevant registers in Defs. By
2901 // doing so, we also cause the prologue/epilogue code to actively preserve
2902 // all of the callee-saved resgisters, which is exactly what we want.
2903 // $val is a scratch register for our use.
2905 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2906 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2907 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2908 D31 ], hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2909 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2910 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2911 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2912 Requires<[IsThumb2, HasVFP2]>;
2916 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2917 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2918 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2919 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2920 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2921 Requires<[IsThumb2, NoVFP]>;
2925 //===----------------------------------------------------------------------===//
2926 // Control-Flow Instructions
2929 // FIXME: remove when we have a way to marking a MI with these properties.
2930 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2932 // FIXME: Should pc be an implicit operand like PICADD, etc?
2933 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2934 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2935 def t2LDMIA_RET: T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2936 reglist:$regs, variable_ops),
2938 "ldmia${p}.w\t$Rn!, $regs",
2943 let Inst{31-27} = 0b11101;
2944 let Inst{26-25} = 0b00;
2945 let Inst{24-23} = 0b01; // Increment After
2947 let Inst{21} = 1; // Writeback
2949 let Inst{19-16} = Rn;
2950 let Inst{15-0} = regs;
2953 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2954 let isPredicable = 1 in
2955 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2957 [(br bb:$target)]> {
2958 let Inst{31-27} = 0b11110;
2959 let Inst{15-14} = 0b10;
2963 let Inst{26} = target{19};
2964 let Inst{11} = target{18};
2965 let Inst{13} = target{17};
2966 let Inst{21-16} = target{16-11};
2967 let Inst{10-0} = target{10-0};
2970 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2971 def t2BR_JT : tPseudoInst<(outs),
2972 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
2973 SizeSpecial, IIC_Br,
2974 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
2976 // FIXME: Add a non-pc based case that can be predicated.
2977 def t2TBB_JT : tPseudoInst<(outs),
2978 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2979 SizeSpecial, IIC_Br, []>;
2981 def t2TBH_JT : tPseudoInst<(outs),
2982 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2983 SizeSpecial, IIC_Br, []>;
2985 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
2986 "tbb", "\t[$Rn, $Rm]", []> {
2989 let Inst{27-20} = 0b10001101;
2990 let Inst{19-16} = Rn;
2991 let Inst{15-5} = 0b11110000000;
2992 let Inst{4} = 0; // B form
2996 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
2997 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3000 let Inst{27-20} = 0b10001101;
3001 let Inst{19-16} = Rn;
3002 let Inst{15-5} = 0b11110000000;
3003 let Inst{4} = 1; // H form
3006 } // isNotDuplicable, isIndirectBranch
3008 } // isBranch, isTerminator, isBarrier
3010 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3011 // a two-value operand where a dag node expects two operands. :(
3012 let isBranch = 1, isTerminator = 1 in
3013 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3015 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3016 let Inst{31-27} = 0b11110;
3017 let Inst{15-14} = 0b10;
3021 let Inst{26} = target{19};
3022 let Inst{11} = target{18};
3023 let Inst{13} = target{17};
3024 let Inst{21-16} = target{16-11};
3025 let Inst{10-0} = target{10-0};
3030 let Defs = [ITSTATE] in
3031 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3032 AddrModeNone, Size2Bytes, IIC_iALUx,
3033 "it$mask\t$cc", "", []> {
3034 // 16-bit instruction.
3035 let Inst{31-16} = 0x0000;
3036 let Inst{15-8} = 0b10111111;
3041 let Inst{3-0} = mask;
3044 // Branch and Exchange Jazelle -- for disassembly only
3046 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3047 [/* For disassembly only; pattern left blank */]> {
3048 let Inst{31-27} = 0b11110;
3050 let Inst{25-20} = 0b111100;
3051 let Inst{15-14} = 0b10;
3055 let Inst{19-16} = func;
3058 // Change Processor State is a system instruction -- for disassembly only.
3059 // The singleton $opt operand contains the following information:
3060 // opt{4-0} = mode from Inst{4-0}
3061 // opt{5} = changemode from Inst{17}
3062 // opt{8-6} = AIF from Inst{8-6}
3063 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
3064 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
3065 [/* For disassembly only; pattern left blank */]> {
3066 let Inst{31-27} = 0b11110;
3068 let Inst{25-20} = 0b111010;
3069 let Inst{15-14} = 0b10;
3075 let Inst{4-0} = opt{4-0};
3078 let Inst{8} = opt{5};
3081 let Inst{5} = opt{6};
3084 let Inst{6} = opt{7};
3087 let Inst{7} = opt{8};
3090 let Inst{10-9} = opt{10-9};
3093 // A6.3.4 Branches and miscellaneous control
3094 // Table A6-14 Change Processor State, and hint instructions
3095 // Helper class for disassembly only.
3096 class T2I_hint<bits<8> op7_0, string opc, string asm>
3097 : T2I<(outs), (ins), NoItinerary, opc, asm,
3098 [/* For disassembly only; pattern left blank */]> {
3099 let Inst{31-20} = 0xf3a;
3100 let Inst{15-14} = 0b10;
3102 let Inst{10-8} = 0b000;
3103 let Inst{7-0} = op7_0;
3106 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3107 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3108 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3109 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3110 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3112 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
3113 [/* For disassembly only; pattern left blank */]> {
3114 let Inst{31-20} = 0xf3a;
3115 let Inst{15-14} = 0b10;
3117 let Inst{10-8} = 0b000;
3118 let Inst{7-4} = 0b1111;
3121 let Inst{3-0} = opt;
3124 // Secure Monitor Call is a system instruction -- for disassembly only
3125 // Option = Inst{19-16}
3126 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
3127 [/* For disassembly only; pattern left blank */]> {
3128 let Inst{31-27} = 0b11110;
3129 let Inst{26-20} = 0b1111111;
3130 let Inst{15-12} = 0b1000;
3133 let Inst{19-16} = opt;
3136 class T2SRS<bits<12> op31_20,
3137 dag oops, dag iops, InstrItinClass itin,
3138 string opc, string asm, list<dag> pattern>
3139 : T2I<oops, iops, itin, opc, asm, pattern> {
3140 let Inst{31-20} = op31_20{11-0};
3143 let Inst{4-0} = mode{4-0};
3146 // Store Return State is a system instruction -- for disassembly only
3147 def t2SRSDBW : T2SRS<0b111010000010,
3148 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3149 [/* For disassembly only; pattern left blank */]>;
3150 def t2SRSDB : T2SRS<0b111010000000,
3151 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3152 [/* For disassembly only; pattern left blank */]>;
3153 def t2SRSIAW : T2SRS<0b111010011010,
3154 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3155 [/* For disassembly only; pattern left blank */]>;
3156 def t2SRSIA : T2SRS<0b111010011000,
3157 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3158 [/* For disassembly only; pattern left blank */]>;
3160 // Return From Exception is a system instruction -- for disassembly only
3162 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3163 string opc, string asm, list<dag> pattern>
3164 : T2I<oops, iops, itin, opc, asm, pattern> {
3165 let Inst{31-20} = op31_20{11-0};
3168 let Inst{19-16} = Rn;
3171 def t2RFEDBW : T2RFE<0b111010000011,
3172 (outs), (ins rGPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3173 [/* For disassembly only; pattern left blank */]>;
3174 def t2RFEDB : T2RFE<0b111010000001,
3175 (outs), (ins rGPR:$Rn), NoItinerary, "rfeab", "\t$Rn",
3176 [/* For disassembly only; pattern left blank */]>;
3177 def t2RFEIAW : T2RFE<0b111010011011,
3178 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3179 [/* For disassembly only; pattern left blank */]>;
3180 def t2RFEIA : T2RFE<0b111010011001,
3181 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3182 [/* For disassembly only; pattern left blank */]>;
3184 //===----------------------------------------------------------------------===//
3185 // Non-Instruction Patterns
3188 // 32-bit immediate using movw + movt.
3189 // This is a single pseudo instruction to make it re-materializable.
3190 // FIXME: Remove this when we can do generalized remat.
3191 let isReMaterializable = 1, isMoveImm = 1 in
3192 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3193 [(set rGPR:$dst, (i32 imm:$src))]>,
3194 Requires<[IsThumb, HasV6T2]>;
3196 // ConstantPool, GlobalAddress, and JumpTable
3197 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3198 Requires<[IsThumb2, DontUseMovt]>;
3199 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3200 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3201 Requires<[IsThumb2, UseMovt]>;
3203 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3204 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3206 // Pseudo instruction that combines ldr from constpool and add pc. This should
3207 // be expanded into two instructions late to allow if-conversion and
3209 let canFoldAsLoad = 1, isReMaterializable = 1 in
3210 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3212 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3214 Requires<[IsThumb2]>;
3216 //===----------------------------------------------------------------------===//
3217 // Move between special register and ARM core register -- for disassembly only
3220 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3221 dag oops, dag iops, InstrItinClass itin,
3222 string opc, string asm, list<dag> pattern>
3223 : T2I<oops, iops, itin, opc, asm, pattern> {
3224 let Inst{31-20} = op31_20{11-0};
3225 let Inst{15-14} = op15_14{1-0};
3226 let Inst{12} = op12{0};
3229 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3230 dag oops, dag iops, InstrItinClass itin,
3231 string opc, string asm, list<dag> pattern>
3232 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3234 let Inst{11-8} = Rd;
3237 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3238 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3239 [/* For disassembly only; pattern left blank */]>;
3240 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3241 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3242 [/* For disassembly only; pattern left blank */]>;
3244 class T2MSR<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3245 dag oops, dag iops, InstrItinClass itin,
3246 string opc, string asm, list<dag> pattern>
3247 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3250 let Inst{19-16} = Rn;
3251 let Inst{11-8} = mask;
3254 def t2MSR : T2MSR<0b111100111000, 0b10, 0,
3255 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3257 [/* For disassembly only; pattern left blank */]>;
3258 def t2MSRsys : T2MSR<0b111100111001, 0b10, 0,
3259 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3261 [/* For disassembly only; pattern left blank */]>;