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, $imm", []> {
1149 let Inst{31-27} = 0b11110;
1151 let Inst{24-21} = 0b1000;
1152 let Inst{19-16} = 0b1101; // Rn = sp
1155 def t2ADDrSPi12 : T2I<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1156 IIC_iALUi, "addw", "\t$Rd, $sp, $imm", []> {
1159 let Inst{31-27} = 0b11110;
1160 let Inst{26} = imm{11};
1161 let Inst{25-20} = 0b100000;
1162 let Inst{19-16} = 0b1101; // Rn = sp
1164 let Inst{14-12} = imm{10-8};
1165 let Inst{11-8} = Rd;
1166 let Inst{7-0} = imm{7-0};
1169 // ADD r, sp, so_reg
1170 def t2ADDrSPs : T2sTwoRegShiftedReg<
1171 (outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$ShiftedRm),
1172 IIC_iALUsi, "add", ".w\t$Rd, $sp, $ShiftedRm", []> {
1173 let Inst{31-27} = 0b11101;
1174 let Inst{26-25} = 0b01;
1175 let Inst{24-21} = 0b1000;
1176 let Inst{19-16} = 0b1101; // Rn = sp
1180 // SUB r, sp, {so_imm|i12}
1181 def t2SUBrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1182 IIC_iALUi, "sub", ".w\t$Rd, $sp, $imm", []> {
1183 let Inst{31-27} = 0b11110;
1185 let Inst{24-21} = 0b1101;
1186 let Inst{19-16} = 0b1101; // Rn = sp
1189 def t2SUBrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1190 IIC_iALUi, "subw", "\t$Rd, $sp, $imm", []> {
1191 let Inst{31-27} = 0b11110;
1193 let Inst{24-21} = 0b0101;
1194 let Inst{20} = 0; // The S bit.
1195 let Inst{19-16} = 0b1101; // Rn = sp
1199 // SUB r, sp, so_reg
1200 def t2SUBrSPs : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$imm),
1202 "sub", "\t$Rd, $sp, $imm", []> {
1203 let Inst{31-27} = 0b11101;
1204 let Inst{26-25} = 0b01;
1205 let Inst{24-21} = 0b1101;
1206 let Inst{19-16} = 0b1101; // Rn = sp
1210 // Signed and unsigned division on v7-M
1211 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1212 "sdiv", "\t$Rd, $Rn, $Rm",
1213 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
1214 Requires<[HasDivide, IsThumb2]> {
1215 let Inst{31-27} = 0b11111;
1216 let Inst{26-21} = 0b011100;
1218 let Inst{15-12} = 0b1111;
1219 let Inst{7-4} = 0b1111;
1222 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1223 "udiv", "\t$Rd, $Rn, $Rm",
1224 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
1225 Requires<[HasDivide, IsThumb2]> {
1226 let Inst{31-27} = 0b11111;
1227 let Inst{26-21} = 0b011101;
1229 let Inst{15-12} = 0b1111;
1230 let Inst{7-4} = 0b1111;
1233 //===----------------------------------------------------------------------===//
1234 // Load / store Instructions.
1238 let canFoldAsLoad = 1, isReMaterializable = 1 in
1239 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
1240 UnOpFrag<(load node:$Src)>>;
1242 // Loads with zero extension
1243 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1244 UnOpFrag<(zextloadi16 node:$Src)>>;
1245 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1246 UnOpFrag<(zextloadi8 node:$Src)>>;
1248 // Loads with sign extension
1249 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1250 UnOpFrag<(sextloadi16 node:$Src)>>;
1251 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1252 UnOpFrag<(sextloadi8 node:$Src)>>;
1254 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1256 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1257 (ins t2addrmode_imm8s4:$addr),
1258 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", []>;
1259 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1261 // zextload i1 -> zextload i8
1262 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1263 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1264 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
1265 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1266 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1267 (t2LDRBs t2addrmode_so_reg:$addr)>;
1268 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1269 (t2LDRBpci tconstpool:$addr)>;
1271 // extload -> zextload
1272 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1274 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1275 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1276 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
1277 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1278 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1279 (t2LDRBs t2addrmode_so_reg:$addr)>;
1280 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1281 (t2LDRBpci tconstpool:$addr)>;
1283 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1284 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1285 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
1286 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1287 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1288 (t2LDRBs t2addrmode_so_reg:$addr)>;
1289 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1290 (t2LDRBpci tconstpool:$addr)>;
1292 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1293 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1294 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
1295 (t2LDRHi8 t2addrmode_imm8:$addr)>;
1296 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1297 (t2LDRHs t2addrmode_so_reg:$addr)>;
1298 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1299 (t2LDRHpci tconstpool:$addr)>;
1301 // FIXME: The destination register of the loads and stores can't be PC, but
1302 // can be SP. We need another regclass (similar to rGPR) to represent
1303 // that. Not a pressing issue since these are selected manually,
1308 class T2Iidxld<bit signed, bits<2> opcod, bit pre,
1310 AddrMode am, IndexMode im, InstrItinClass itin,
1311 string opc, string asm, string cstr, list<dag> pattern>
1312 : T2Iidxldst<signed, opcod, 1, pre, oops,
1313 iops, am,im,itin, opc, asm, cstr, pattern>;
1314 class T2Iidxst<bit signed, bits<2> opcod, bit pre,
1316 AddrMode am, IndexMode im, InstrItinClass itin,
1317 string opc, string asm, string cstr, list<dag> pattern>
1318 : T2Iidxldst<signed, opcod, 0, pre, oops,
1319 iops, am,im,itin, opc, asm, cstr, pattern>;
1321 let mayLoad = 1, neverHasSideEffects = 1 in {
1322 def t2LDR_PRE : T2Iidxld<0, 0b10, 1, (outs GPR:$Rt, GPR:$Rn),
1323 (ins t2addrmode_imm8:$addr),
1324 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1325 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1328 def t2LDR_POST : T2Iidxld<0, 0b10, 0, (outs GPR:$Rt, GPR:$Rn),
1329 (ins GPR:$base, t2am_imm8_offset:$offset),
1330 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1331 "ldr", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1334 def t2LDRB_PRE : T2Iidxld<0, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1335 (ins t2addrmode_imm8:$addr),
1336 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1337 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1339 def t2LDRB_POST : T2Iidxld<0, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1340 (ins GPR:$base, t2am_imm8_offset:$offset),
1341 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1342 "ldrb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1345 def t2LDRH_PRE : T2Iidxld<0, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1346 (ins t2addrmode_imm8:$addr),
1347 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1348 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1350 def t2LDRH_POST : T2Iidxld<0, 0b01, 0, (outs GPR:$Rt, GPR:$Rn),
1351 (ins GPR:$base, t2am_imm8_offset:$offset),
1352 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1353 "ldrh", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1356 def t2LDRSB_PRE : T2Iidxld<1, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1357 (ins t2addrmode_imm8:$addr),
1358 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1359 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1361 def t2LDRSB_POST : T2Iidxld<1, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1362 (ins GPR:$base, t2am_imm8_offset:$offset),
1363 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1364 "ldrsb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1367 def t2LDRSH_PRE : T2Iidxld<1, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1368 (ins t2addrmode_imm8:$addr),
1369 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1370 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1372 def t2LDRSH_POST : T2Iidxld<1, 0b01, 0, (outs GPR:$dst, GPR:$Rn),
1373 (ins GPR:$base, t2am_imm8_offset:$offset),
1374 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1375 "ldrsh", "\t$dst, [$Rn], $offset", "$base = $Rn",
1377 } // mayLoad = 1, neverHasSideEffects = 1
1379 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1380 // for disassembly only.
1381 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1382 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1383 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1384 "\t$Rt, $addr", []> {
1385 let Inst{31-27} = 0b11111;
1386 let Inst{26-25} = 0b00;
1387 let Inst{24} = signed;
1389 let Inst{22-21} = type;
1390 let Inst{20} = 1; // load
1392 let Inst{10-8} = 0b110; // PUW.
1396 let Inst{15-12} = Rt;
1397 let Inst{19-16} = addr{12-9};
1398 let Inst{7-0} = addr{7-0};
1401 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1402 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1403 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1404 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1405 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1408 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1409 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1410 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1411 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1412 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1413 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1416 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1417 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1418 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1419 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
1422 def t2STR_PRE : T2Iidxst<0, 0b10, 1, (outs GPR:$base_wb),
1423 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1424 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1425 "str", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1427 (pre_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1429 def t2STR_POST : T2Iidxst<0, 0b10, 0, (outs GPR:$base_wb),
1430 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1431 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1432 "str", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1434 (post_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1436 def t2STRH_PRE : T2Iidxst<0, 0b01, 1, (outs GPR:$base_wb),
1437 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1438 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1439 "strh", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1441 (pre_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1443 def t2STRH_POST : T2Iidxst<0, 0b01, 0, (outs GPR:$base_wb),
1444 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1445 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1446 "strh", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1448 (post_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1450 def t2STRB_PRE : T2Iidxst<0, 0b00, 1, (outs GPR:$base_wb),
1451 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1452 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1453 "strb", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1455 (pre_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1457 def t2STRB_POST : T2Iidxst<0, 0b00, 0, (outs GPR:$base_wb),
1458 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1459 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1460 "strb", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1462 (post_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1464 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1466 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1467 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1468 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1469 "\t$Rt, $addr", []> {
1470 let Inst{31-27} = 0b11111;
1471 let Inst{26-25} = 0b00;
1472 let Inst{24} = 0; // not signed
1474 let Inst{22-21} = type;
1475 let Inst{20} = 0; // store
1477 let Inst{10-8} = 0b110; // PUW
1481 let Inst{15-12} = Rt;
1482 let Inst{19-16} = addr{12-9};
1483 let Inst{7-0} = addr{7-0};
1486 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1487 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1488 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1490 // ldrd / strd pre / post variants
1491 // For disassembly only.
1493 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1494 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1495 "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1497 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1498 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1499 "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
1501 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1502 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1503 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1505 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1506 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1507 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
1509 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1510 // data/instruction access. These are for disassembly only.
1511 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1512 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1513 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1515 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1517 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1518 let Inst{31-25} = 0b1111100;
1519 let Inst{24} = instr;
1521 let Inst{21} = write;
1523 let Inst{15-12} = 0b1111;
1526 let Inst{19-16} = addr{16-13}; // Rn
1527 let Inst{23} = addr{12}; // U
1528 let Inst{11-0} = addr{11-0}; // imm12
1531 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1533 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1534 let Inst{31-25} = 0b1111100;
1535 let Inst{24} = instr;
1536 let Inst{23} = 0; // U = 0
1538 let Inst{21} = write;
1540 let Inst{15-12} = 0b1111;
1541 let Inst{11-8} = 0b1100;
1544 let Inst{19-16} = addr{12-9}; // Rn
1545 let Inst{7-0} = addr{7-0}; // imm8
1548 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1550 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1551 let Inst{31-25} = 0b1111100;
1552 let Inst{24} = instr;
1553 let Inst{23} = 0; // add = TRUE for T1
1555 let Inst{21} = write;
1557 let Inst{15-12} = 0b1111;
1558 let Inst{11-6} = 0000000;
1561 let Inst{19-16} = addr{9-6}; // Rn
1562 let Inst{3-0} = addr{5-2}; // Rm
1563 let Inst{5-4} = addr{1-0}; // imm2
1567 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1568 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1569 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1571 //===----------------------------------------------------------------------===//
1572 // Load / store multiple Instructions.
1575 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1576 InstrItinClass itin_upd, bit L_bit> {
1578 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1579 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1583 let Inst{31-27} = 0b11101;
1584 let Inst{26-25} = 0b00;
1585 let Inst{24-23} = 0b01; // Increment After
1587 let Inst{21} = 0; // No writeback
1588 let Inst{20} = L_bit;
1589 let Inst{19-16} = Rn;
1590 let Inst{15-0} = regs;
1593 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1594 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1598 let Inst{31-27} = 0b11101;
1599 let Inst{26-25} = 0b00;
1600 let Inst{24-23} = 0b01; // Increment After
1602 let Inst{21} = 1; // Writeback
1603 let Inst{20} = L_bit;
1604 let Inst{19-16} = Rn;
1605 let Inst{15-0} = regs;
1608 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1609 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1613 let Inst{31-27} = 0b11101;
1614 let Inst{26-25} = 0b00;
1615 let Inst{24-23} = 0b10; // Decrement Before
1617 let Inst{21} = 0; // No writeback
1618 let Inst{20} = L_bit;
1619 let Inst{19-16} = Rn;
1620 let Inst{15-0} = regs;
1623 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1624 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1628 let Inst{31-27} = 0b11101;
1629 let Inst{26-25} = 0b00;
1630 let Inst{24-23} = 0b10; // Decrement Before
1632 let Inst{21} = 1; // Writeback
1633 let Inst{20} = L_bit;
1634 let Inst{19-16} = Rn;
1635 let Inst{15-0} = regs;
1639 let neverHasSideEffects = 1 in {
1641 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1642 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1644 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1645 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1647 } // neverHasSideEffects
1650 //===----------------------------------------------------------------------===//
1651 // Move Instructions.
1654 let neverHasSideEffects = 1 in
1655 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1656 "mov", ".w\t$Rd, $Rm", []> {
1657 let Inst{31-27} = 0b11101;
1658 let Inst{26-25} = 0b01;
1659 let Inst{24-21} = 0b0010;
1660 let Inst{19-16} = 0b1111; // Rn
1661 let Inst{14-12} = 0b000;
1662 let Inst{7-4} = 0b0000;
1665 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1666 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1667 AddedComplexity = 1 in
1668 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1669 "mov", ".w\t$Rd, $imm",
1670 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1671 let Inst{31-27} = 0b11110;
1673 let Inst{24-21} = 0b0010;
1674 let Inst{19-16} = 0b1111; // Rn
1678 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1679 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins i32imm:$imm), IIC_iMOVi,
1680 "movw", "\t$Rd, $imm",
1681 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1682 let Inst{31-27} = 0b11110;
1684 let Inst{24-21} = 0b0010;
1685 let Inst{20} = 0; // The S bit.
1691 let Inst{11-8} = Rd;
1692 let Inst{19-16} = imm{15-12};
1693 let Inst{26} = imm{11};
1694 let Inst{14-12} = imm{10-8};
1695 let Inst{7-0} = imm{7-0};
1698 let Constraints = "$src = $Rd" in
1699 def t2MOVTi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1700 "movt", "\t$Rd, $imm",
1702 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1703 let Inst{31-27} = 0b11110;
1705 let Inst{24-21} = 0b0110;
1706 let Inst{20} = 0; // The S bit.
1712 let Inst{11-8} = Rd;
1713 let Inst{19-16} = imm{15-12};
1714 let Inst{26} = imm{11};
1715 let Inst{14-12} = imm{10-8};
1716 let Inst{7-0} = imm{7-0};
1719 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1721 //===----------------------------------------------------------------------===//
1722 // Extend Instructions.
1727 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1728 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1729 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1730 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1731 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1733 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1734 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1735 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1736 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1737 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1739 // TODO: SXT(A){B|H}16 - done for disassembly only
1743 let AddedComplexity = 16 in {
1744 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1745 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1746 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1747 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1748 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1749 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1751 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1752 // The transformation should probably be done as a combiner action
1753 // instead so we can include a check for masking back in the upper
1754 // eight bits of the source into the lower eight bits of the result.
1755 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1756 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1757 // Requires<[HasT2ExtractPack, IsThumb2]>;
1758 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1759 (t2UXTB16r_rot rGPR:$Src, 8)>,
1760 Requires<[HasT2ExtractPack, IsThumb2]>;
1762 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1763 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1764 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1765 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1766 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1769 //===----------------------------------------------------------------------===//
1770 // Arithmetic Instructions.
1773 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1774 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1775 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1776 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1778 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1779 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1780 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1781 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1782 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1783 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1784 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1786 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1787 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1788 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1789 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1790 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1791 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1792 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1793 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1796 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1797 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1798 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1799 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1801 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1802 // The assume-no-carry-in form uses the negation of the input since add/sub
1803 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1804 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1806 // The AddedComplexity preferences the first variant over the others since
1807 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1808 let AddedComplexity = 1 in
1809 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1810 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1811 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1812 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1813 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1814 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1815 let AddedComplexity = 1 in
1816 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1817 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1818 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1819 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1820 // The with-carry-in form matches bitwise not instead of the negation.
1821 // Effectively, the inverse interpretation of the carry flag already accounts
1822 // for part of the negation.
1823 let AddedComplexity = 1 in
1824 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1825 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1826 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1827 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1829 // Select Bytes -- for disassembly only
1831 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1832 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []> {
1833 let Inst{31-27} = 0b11111;
1834 let Inst{26-24} = 0b010;
1836 let Inst{22-20} = 0b010;
1837 let Inst{15-12} = 0b1111;
1839 let Inst{6-4} = 0b000;
1842 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1843 // And Miscellaneous operations -- for disassembly only
1844 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1845 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1846 : T2I<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), NoItinerary, opc,
1847 "\t$Rd, $Rn, $Rm", pat> {
1848 let Inst{31-27} = 0b11111;
1849 let Inst{26-23} = 0b0101;
1850 let Inst{22-20} = op22_20;
1851 let Inst{15-12} = 0b1111;
1852 let Inst{7-4} = op7_4;
1858 let Inst{11-8} = Rd;
1859 let Inst{19-16} = Rn;
1863 // Saturating add/subtract -- for disassembly only
1865 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1866 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))]>;
1867 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1868 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1869 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1870 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1871 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1872 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1873 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1874 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))]>;
1875 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1876 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1877 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1878 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1879 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1880 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1881 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1882 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1884 // Signed/Unsigned add/subtract -- for disassembly only
1886 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1887 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1888 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1889 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1890 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1891 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1892 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1893 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1894 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1895 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1896 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1897 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1899 // Signed/Unsigned halving add/subtract -- for disassembly only
1901 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1902 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1903 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1904 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1905 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1906 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1907 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1908 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1909 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1910 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1911 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1912 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1914 // Helper class for disassembly only
1915 // A6.3.16 & A6.3.17
1916 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1917 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1918 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1919 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1920 let Inst{31-27} = 0b11111;
1921 let Inst{26-24} = 0b011;
1922 let Inst{23} = long;
1923 let Inst{22-20} = op22_20;
1924 let Inst{7-4} = op7_4;
1927 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1928 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1929 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1930 let Inst{31-27} = 0b11111;
1931 let Inst{26-24} = 0b011;
1932 let Inst{23} = long;
1933 let Inst{22-20} = op22_20;
1934 let Inst{7-4} = op7_4;
1937 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1939 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1940 (ins rGPR:$Rn, rGPR:$Rm),
1941 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []> {
1942 let Inst{15-12} = 0b1111;
1944 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1945 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1946 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>;
1948 // Signed/Unsigned saturate -- for disassembly only
1950 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1951 string opc, string asm, list<dag> pattern>
1952 : T2I<oops, iops, itin, opc, asm, pattern> {
1958 let Inst{11-8} = Rd;
1959 let Inst{19-16} = Rn;
1960 let Inst{4-0} = sat_imm{4-0};
1961 let Inst{21} = sh{6};
1962 let Inst{14-12} = sh{4-2};
1963 let Inst{7-6} = sh{1-0};
1967 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1968 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1969 [/* For disassembly only; pattern left blank */]> {
1970 let Inst{31-27} = 0b11110;
1971 let Inst{25-22} = 0b1100;
1976 def t2SSAT16: T2SatI<
1977 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
1978 "ssat16", "\t$Rd, $sat_imm, $Rn",
1979 [/* For disassembly only; pattern left blank */]> {
1980 let Inst{31-27} = 0b11110;
1981 let Inst{25-22} = 0b1100;
1984 let Inst{21} = 1; // sh = '1'
1985 let Inst{14-12} = 0b000; // imm3 = '000'
1986 let Inst{7-6} = 0b00; // imm2 = '00'
1990 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1991 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
1992 [/* For disassembly only; pattern left blank */]> {
1993 let Inst{31-27} = 0b11110;
1994 let Inst{25-22} = 0b1110;
1999 def t2USAT16: T2SatI<
2000 (outs rGPR:$dst), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
2001 "usat16", "\t$dst, $sat_imm, $Rn",
2002 [/* For disassembly only; pattern left blank */]> {
2003 let Inst{31-27} = 0b11110;
2004 let Inst{25-22} = 0b1110;
2007 let Inst{21} = 1; // sh = '1'
2008 let Inst{14-12} = 0b000; // imm3 = '000'
2009 let Inst{7-6} = 0b00; // imm2 = '00'
2012 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2013 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2015 //===----------------------------------------------------------------------===//
2016 // Shift and rotate Instructions.
2019 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2020 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2021 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2022 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2024 let Uses = [CPSR] in {
2025 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2026 "rrx", "\t$Rd, $Rm",
2027 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2028 let Inst{31-27} = 0b11101;
2029 let Inst{26-25} = 0b01;
2030 let Inst{24-21} = 0b0010;
2031 let Inst{19-16} = 0b1111; // Rn
2032 let Inst{14-12} = 0b000;
2033 let Inst{7-4} = 0b0011;
2037 let Defs = [CPSR] in {
2038 def t2MOVsrl_flag : T2TwoRegShiftImm<
2039 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2040 "lsrs", ".w\t$Rd, $Rm, #1",
2041 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2042 let Inst{31-27} = 0b11101;
2043 let Inst{26-25} = 0b01;
2044 let Inst{24-21} = 0b0010;
2045 let Inst{20} = 1; // The S bit.
2046 let Inst{19-16} = 0b1111; // Rn
2047 let Inst{5-4} = 0b01; // Shift type.
2048 // Shift amount = Inst{14-12:7-6} = 1.
2049 let Inst{14-12} = 0b000;
2050 let Inst{7-6} = 0b01;
2052 def t2MOVsra_flag : T2TwoRegShiftImm<
2053 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2054 "asrs", ".w\t$Rd, $Rm, #1",
2055 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2056 let Inst{31-27} = 0b11101;
2057 let Inst{26-25} = 0b01;
2058 let Inst{24-21} = 0b0010;
2059 let Inst{20} = 1; // The S bit.
2060 let Inst{19-16} = 0b1111; // Rn
2061 let Inst{5-4} = 0b10; // Shift type.
2062 // Shift amount = Inst{14-12:7-6} = 1.
2063 let Inst{14-12} = 0b000;
2064 let Inst{7-6} = 0b01;
2068 //===----------------------------------------------------------------------===//
2069 // Bitwise Instructions.
2072 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2073 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2074 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2075 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2076 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2077 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2078 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2079 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2080 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2082 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2083 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2084 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2086 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2087 string opc, string asm, list<dag> pattern>
2088 : T2I<oops, iops, itin, opc, asm, pattern> {
2093 let Inst{11-8} = Rd;
2094 let Inst{4-0} = msb{4-0};
2095 let Inst{14-12} = lsb{4-2};
2096 let Inst{7-6} = lsb{1-0};
2099 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2100 string opc, string asm, list<dag> pattern>
2101 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2104 let Inst{19-16} = Rn;
2107 let Constraints = "$src = $Rd" in
2108 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2109 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2110 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2111 let Inst{31-27} = 0b11110;
2113 let Inst{24-20} = 0b10110;
2114 let Inst{19-16} = 0b1111; // Rn
2118 let msb{4-0} = imm{9-5};
2119 let lsb{4-0} = imm{4-0};
2122 def t2SBFX: T2TwoRegBitFI<
2123 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2124 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2125 let Inst{31-27} = 0b11110;
2127 let Inst{24-20} = 0b10100;
2131 def t2UBFX: T2TwoRegBitFI<
2132 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2133 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2134 let Inst{31-27} = 0b11110;
2136 let Inst{24-20} = 0b11100;
2140 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2141 let Constraints = "$src = $Rd" in
2142 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2143 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2144 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2145 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2146 bf_inv_mask_imm:$imm))]> {
2147 let Inst{31-27} = 0b11110;
2149 let Inst{24-20} = 0b10110;
2153 let msb{4-0} = imm{9-5};
2154 let lsb{4-0} = imm{4-0};
2157 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2158 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2159 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2161 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2162 let AddedComplexity = 1 in
2163 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2164 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2165 UnOpFrag<(not node:$Src)>, 1, 1>;
2168 let AddedComplexity = 1 in
2169 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2170 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2172 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2173 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2174 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2175 Requires<[IsThumb2]>;
2177 def : T2Pat<(t2_so_imm_not:$src),
2178 (t2MVNi t2_so_imm_not:$src)>;
2180 //===----------------------------------------------------------------------===//
2181 // Multiply Instructions.
2183 let isCommutable = 1 in
2184 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2185 "mul", "\t$Rd, $Rn, $Rm",
2186 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2187 let Inst{31-27} = 0b11111;
2188 let Inst{26-23} = 0b0110;
2189 let Inst{22-20} = 0b000;
2190 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2191 let Inst{7-4} = 0b0000; // Multiply
2194 def t2MLA: T2FourReg<
2195 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2196 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2197 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2198 let Inst{31-27} = 0b11111;
2199 let Inst{26-23} = 0b0110;
2200 let Inst{22-20} = 0b000;
2201 let Inst{7-4} = 0b0000; // Multiply
2204 def t2MLS: T2FourReg<
2205 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2206 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2207 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2208 let Inst{31-27} = 0b11111;
2209 let Inst{26-23} = 0b0110;
2210 let Inst{22-20} = 0b000;
2211 let Inst{7-4} = 0b0001; // Multiply and Subtract
2214 // Extra precision multiplies with low / high results
2215 let neverHasSideEffects = 1 in {
2216 let isCommutable = 1 in {
2217 def t2SMULL : T2MulLong<0b000, 0b0000,
2218 (outs rGPR:$Rd, rGPR:$Ra),
2219 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2220 "smull", "\t$Rd, $Ra, $Rn, $Rm", []>;
2222 def t2UMULL : T2MulLong<0b010, 0b0000,
2223 (outs rGPR:$RdLo, rGPR:$RdHi),
2224 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2225 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2228 // Multiply + accumulate
2229 def t2SMLAL : T2MulLong<0b100, 0b0000,
2230 (outs rGPR:$RdLo, rGPR:$RdHi),
2231 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2232 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2234 def t2UMLAL : T2MulLong<0b110, 0b0000,
2235 (outs rGPR:$RdLo, rGPR:$RdHi),
2236 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2237 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2239 def t2UMAAL : T2MulLong<0b110, 0b0110,
2240 (outs rGPR:$RdLo, rGPR:$RdHi),
2241 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2242 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2243 } // neverHasSideEffects
2245 // Rounding variants of the below included for disassembly only
2247 // Most significant word multiply
2248 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2249 "smmul", "\t$Rd, $Rn, $Rm",
2250 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]> {
2251 let Inst{31-27} = 0b11111;
2252 let Inst{26-23} = 0b0110;
2253 let Inst{22-20} = 0b101;
2254 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2255 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2258 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2259 "smmulr", "\t$Rd, $Rn, $Rm", []> {
2260 let Inst{31-27} = 0b11111;
2261 let Inst{26-23} = 0b0110;
2262 let Inst{22-20} = 0b101;
2263 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2264 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2267 def t2SMMLA : T2FourReg<
2268 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2269 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2270 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]> {
2271 let Inst{31-27} = 0b11111;
2272 let Inst{26-23} = 0b0110;
2273 let Inst{22-20} = 0b101;
2274 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2277 def t2SMMLAR: T2FourReg<
2278 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2279 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []> {
2280 let Inst{31-27} = 0b11111;
2281 let Inst{26-23} = 0b0110;
2282 let Inst{22-20} = 0b101;
2283 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2286 def t2SMMLS: T2FourReg<
2287 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2288 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2289 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]> {
2290 let Inst{31-27} = 0b11111;
2291 let Inst{26-23} = 0b0110;
2292 let Inst{22-20} = 0b110;
2293 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2296 def t2SMMLSR:T2FourReg<
2297 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2298 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []> {
2299 let Inst{31-27} = 0b11111;
2300 let Inst{26-23} = 0b0110;
2301 let Inst{22-20} = 0b110;
2302 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2305 multiclass T2I_smul<string opc, PatFrag opnode> {
2306 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2307 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2308 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2309 (sext_inreg rGPR:$Rm, i16)))]> {
2310 let Inst{31-27} = 0b11111;
2311 let Inst{26-23} = 0b0110;
2312 let Inst{22-20} = 0b001;
2313 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2314 let Inst{7-6} = 0b00;
2315 let Inst{5-4} = 0b00;
2318 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2319 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2320 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2321 (sra rGPR:$Rm, (i32 16))))]> {
2322 let Inst{31-27} = 0b11111;
2323 let Inst{26-23} = 0b0110;
2324 let Inst{22-20} = 0b001;
2325 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2326 let Inst{7-6} = 0b00;
2327 let Inst{5-4} = 0b01;
2330 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2331 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2332 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2333 (sext_inreg rGPR:$Rm, i16)))]> {
2334 let Inst{31-27} = 0b11111;
2335 let Inst{26-23} = 0b0110;
2336 let Inst{22-20} = 0b001;
2337 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2338 let Inst{7-6} = 0b00;
2339 let Inst{5-4} = 0b10;
2342 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2343 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2344 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2345 (sra rGPR:$Rm, (i32 16))))]> {
2346 let Inst{31-27} = 0b11111;
2347 let Inst{26-23} = 0b0110;
2348 let Inst{22-20} = 0b001;
2349 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2350 let Inst{7-6} = 0b00;
2351 let Inst{5-4} = 0b11;
2354 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2355 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2356 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2357 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]> {
2358 let Inst{31-27} = 0b11111;
2359 let Inst{26-23} = 0b0110;
2360 let Inst{22-20} = 0b011;
2361 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2362 let Inst{7-6} = 0b00;
2363 let Inst{5-4} = 0b00;
2366 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2367 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2368 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2369 (sra rGPR:$Rm, (i32 16))), (i32 16)))]> {
2370 let Inst{31-27} = 0b11111;
2371 let Inst{26-23} = 0b0110;
2372 let Inst{22-20} = 0b011;
2373 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2374 let Inst{7-6} = 0b00;
2375 let Inst{5-4} = 0b01;
2380 multiclass T2I_smla<string opc, PatFrag opnode> {
2382 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2383 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2384 [(set rGPR:$Rd, (add rGPR:$Ra,
2385 (opnode (sext_inreg rGPR:$Rn, i16),
2386 (sext_inreg rGPR:$Rm, i16))))]> {
2387 let Inst{31-27} = 0b11111;
2388 let Inst{26-23} = 0b0110;
2389 let Inst{22-20} = 0b001;
2390 let Inst{7-6} = 0b00;
2391 let Inst{5-4} = 0b00;
2395 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2396 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2397 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2398 (sra rGPR:$Rm, (i32 16)))))]> {
2399 let Inst{31-27} = 0b11111;
2400 let Inst{26-23} = 0b0110;
2401 let Inst{22-20} = 0b001;
2402 let Inst{7-6} = 0b00;
2403 let Inst{5-4} = 0b01;
2407 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2408 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2409 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2410 (sext_inreg rGPR:$Rm, i16))))]> {
2411 let Inst{31-27} = 0b11111;
2412 let Inst{26-23} = 0b0110;
2413 let Inst{22-20} = 0b001;
2414 let Inst{7-6} = 0b00;
2415 let Inst{5-4} = 0b10;
2419 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2420 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2421 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2422 (sra rGPR:$Rm, (i32 16)))))]> {
2423 let Inst{31-27} = 0b11111;
2424 let Inst{26-23} = 0b0110;
2425 let Inst{22-20} = 0b001;
2426 let Inst{7-6} = 0b00;
2427 let Inst{5-4} = 0b11;
2431 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2432 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2433 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2434 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]> {
2435 let Inst{31-27} = 0b11111;
2436 let Inst{26-23} = 0b0110;
2437 let Inst{22-20} = 0b011;
2438 let Inst{7-6} = 0b00;
2439 let Inst{5-4} = 0b00;
2443 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2444 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2445 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2446 (sra rGPR:$Rm, (i32 16))), (i32 16))))]> {
2447 let Inst{31-27} = 0b11111;
2448 let Inst{26-23} = 0b0110;
2449 let Inst{22-20} = 0b011;
2450 let Inst{7-6} = 0b00;
2451 let Inst{5-4} = 0b01;
2455 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2456 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2458 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2459 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2460 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2461 [/* For disassembly only; pattern left blank */]>;
2462 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2463 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2464 [/* For disassembly only; pattern left blank */]>;
2465 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2466 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2467 [/* For disassembly only; pattern left blank */]>;
2468 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2469 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2470 [/* For disassembly only; pattern left blank */]>;
2472 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2473 // These are for disassembly only.
2475 def t2SMUAD: T2ThreeReg_mac<
2476 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2477 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []> {
2478 let Inst{15-12} = 0b1111;
2480 def t2SMUADX:T2ThreeReg_mac<
2481 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2482 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []> {
2483 let Inst{15-12} = 0b1111;
2485 def t2SMUSD: T2ThreeReg_mac<
2486 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2487 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []> {
2488 let Inst{15-12} = 0b1111;
2490 def t2SMUSDX:T2ThreeReg_mac<
2491 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2492 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []> {
2493 let Inst{15-12} = 0b1111;
2495 def t2SMLAD : T2ThreeReg_mac<
2496 0, 0b010, 0b0000, (outs rGPR:$Rd),
2497 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2498 "\t$Rd, $Rn, $Rm, $Ra", []>;
2499 def t2SMLADX : T2FourReg_mac<
2500 0, 0b010, 0b0001, (outs rGPR:$Rd),
2501 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2502 "\t$Rd, $Rn, $Rm, $Ra", []>;
2503 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2504 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2505 "\t$Rd, $Rn, $Rm, $Ra", []>;
2506 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2507 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2508 "\t$Rd, $Rn, $Rm, $Ra", []>;
2509 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2510 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2511 "\t$Ra, $Rd, $Rm, $Rn", []>;
2512 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2513 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2514 "\t$Ra, $Rd, $Rm, $Rn", []>;
2515 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2516 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2517 "\t$Ra, $Rd, $Rm, $Rn", []>;
2518 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2519 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2520 "\t$Ra, $Rd, $Rm, $Rn", []>;
2522 //===----------------------------------------------------------------------===//
2523 // Misc. Arithmetic Instructions.
2526 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2527 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2528 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2529 let Inst{31-27} = 0b11111;
2530 let Inst{26-22} = 0b01010;
2531 let Inst{21-20} = op1;
2532 let Inst{15-12} = 0b1111;
2533 let Inst{7-6} = 0b10;
2534 let Inst{5-4} = op2;
2538 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2539 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2541 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2542 "rbit", "\t$Rd, $Rm",
2543 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2545 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2546 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2548 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2549 "rev16", ".w\t$Rd, $Rm",
2551 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF),
2552 (or (and (shl rGPR:$Rm, (i32 8)), 0xFF00),
2553 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF0000),
2554 (and (shl rGPR:$Rm, (i32 8)), 0xFF000000)))))]>;
2556 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2557 "revsh", ".w\t$Rd, $Rm",
2560 (or (srl (and rGPR:$Rm, 0xFF00), (i32 8)),
2561 (shl rGPR:$Rm, (i32 8))), i16))]>;
2563 def t2PKHBT : T2ThreeReg<
2564 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2565 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2566 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2567 (and (shl rGPR:$Rm, lsl_amt:$sh),
2569 Requires<[HasT2ExtractPack, IsThumb2]> {
2570 let Inst{31-27} = 0b11101;
2571 let Inst{26-25} = 0b01;
2572 let Inst{24-20} = 0b01100;
2573 let Inst{5} = 0; // BT form
2577 let Inst{14-12} = sh{7-5};
2578 let Inst{7-6} = sh{4-3};
2581 // Alternate cases for PKHBT where identities eliminate some nodes.
2582 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2583 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2584 Requires<[HasT2ExtractPack, IsThumb2]>;
2585 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2586 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2587 Requires<[HasT2ExtractPack, IsThumb2]>;
2589 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2590 // will match the pattern below.
2591 def t2PKHTB : T2ThreeReg<
2592 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2593 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2594 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2595 (and (sra rGPR:$Rm, asr_amt:$sh),
2597 Requires<[HasT2ExtractPack, IsThumb2]> {
2598 let Inst{31-27} = 0b11101;
2599 let Inst{26-25} = 0b01;
2600 let Inst{24-20} = 0b01100;
2601 let Inst{5} = 1; // TB form
2605 let Inst{14-12} = sh{7-5};
2606 let Inst{7-6} = sh{4-3};
2609 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2610 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2611 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2612 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2613 Requires<[HasT2ExtractPack, IsThumb2]>;
2614 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2615 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2616 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2617 Requires<[HasT2ExtractPack, IsThumb2]>;
2619 //===----------------------------------------------------------------------===//
2620 // Comparison Instructions...
2622 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2623 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2624 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2626 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_imm:$imm),
2627 (t2CMPri GPR:$lhs, t2_so_imm:$imm)>;
2628 def : T2Pat<(ARMcmpZ GPR:$lhs, rGPR:$rhs),
2629 (t2CMPrr GPR:$lhs, rGPR:$rhs)>;
2630 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_reg:$rhs),
2631 (t2CMPrs GPR:$lhs, t2_so_reg:$rhs)>;
2633 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2634 // Compare-to-zero still works out, just not the relationals
2635 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2636 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2637 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2638 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2639 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2641 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2642 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2644 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2645 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2647 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2648 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2649 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2650 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2651 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2652 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2654 // Conditional moves
2655 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2656 // a two-value operand where a dag node expects two operands. :(
2657 let neverHasSideEffects = 1 in {
2658 def t2MOVCCr : T2TwoReg<
2659 (outs rGPR:$Rd), (ins rGPR:$false, rGPR:$Rm), IIC_iCMOVr,
2660 "mov", ".w\t$Rd, $Rm",
2661 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2662 RegConstraint<"$false = $Rd"> {
2663 let Inst{31-27} = 0b11101;
2664 let Inst{26-25} = 0b01;
2665 let Inst{24-21} = 0b0010;
2666 let Inst{20} = 0; // The S bit.
2667 let Inst{19-16} = 0b1111; // Rn
2668 let Inst{14-12} = 0b000;
2669 let Inst{7-4} = 0b0000;
2672 let isMoveImm = 1 in
2673 def t2MOVCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2674 IIC_iCMOVi, "mov", ".w\t$Rd, $imm",
2675 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2676 RegConstraint<"$false = $Rd"> {
2677 let Inst{31-27} = 0b11110;
2679 let Inst{24-21} = 0b0010;
2680 let Inst{20} = 0; // The S bit.
2681 let Inst{19-16} = 0b1111; // Rn
2685 let isMoveImm = 1 in
2686 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, i32imm:$imm),
2688 "movw", "\t$Rd, $imm", []>,
2689 RegConstraint<"$false = $Rd"> {
2690 let Inst{31-27} = 0b11110;
2692 let Inst{24-21} = 0b0010;
2693 let Inst{20} = 0; // The S bit.
2699 let Inst{11-8} = Rd;
2700 let Inst{19-16} = imm{15-12};
2701 let Inst{26} = imm{11};
2702 let Inst{14-12} = imm{10-8};
2703 let Inst{7-0} = imm{7-0};
2706 let isMoveImm = 1 in
2707 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2708 (ins rGPR:$false, i32imm:$src, pred:$p),
2709 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2711 let isMoveImm = 1 in
2712 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2713 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2714 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2715 imm:$cc, CCR:$ccr))*/]>,
2716 RegConstraint<"$false = $Rd"> {
2717 let Inst{31-27} = 0b11110;
2719 let Inst{24-21} = 0b0011;
2720 let Inst{20} = 0; // The S bit.
2721 let Inst{19-16} = 0b1111; // Rn
2725 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2726 string opc, string asm, list<dag> pattern>
2727 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2728 let Inst{31-27} = 0b11101;
2729 let Inst{26-25} = 0b01;
2730 let Inst{24-21} = 0b0010;
2731 let Inst{20} = 0; // The S bit.
2732 let Inst{19-16} = 0b1111; // Rn
2733 let Inst{5-4} = opcod; // Shift type.
2735 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2736 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2737 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2738 RegConstraint<"$false = $Rd">;
2739 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2740 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2741 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2742 RegConstraint<"$false = $Rd">;
2743 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2744 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2745 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2746 RegConstraint<"$false = $Rd">;
2747 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2748 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2749 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2750 RegConstraint<"$false = $Rd">;
2751 } // neverHasSideEffects
2753 //===----------------------------------------------------------------------===//
2754 // Atomic operations intrinsics
2757 // memory barriers protect the atomic sequences
2758 let hasSideEffects = 1 in {
2759 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2760 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2761 Requires<[IsThumb, HasDB]> {
2763 let Inst{31-4} = 0xf3bf8f5;
2764 let Inst{3-0} = opt;
2768 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2770 [/* For disassembly only; pattern left blank */]>,
2771 Requires<[IsThumb, HasDB]> {
2773 let Inst{31-4} = 0xf3bf8f4;
2774 let Inst{3-0} = opt;
2777 // ISB has only full system option -- for disassembly only
2778 def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
2779 [/* For disassembly only; pattern left blank */]>,
2780 Requires<[IsThumb2, HasV7]> {
2781 let Inst{31-4} = 0xf3bf8f6;
2782 let Inst{3-0} = 0b1111;
2785 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2786 InstrItinClass itin, string opc, string asm, string cstr,
2787 list<dag> pattern, bits<4> rt2 = 0b1111>
2788 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2789 let Inst{31-27} = 0b11101;
2790 let Inst{26-20} = 0b0001101;
2791 let Inst{11-8} = rt2;
2792 let Inst{7-6} = 0b01;
2793 let Inst{5-4} = opcod;
2794 let Inst{3-0} = 0b1111;
2798 let Inst{19-16} = Rn;
2799 let Inst{15-12} = Rt;
2801 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2802 InstrItinClass itin, string opc, string asm, string cstr,
2803 list<dag> pattern, bits<4> rt2 = 0b1111>
2804 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2805 let Inst{31-27} = 0b11101;
2806 let Inst{26-20} = 0b0001100;
2807 let Inst{11-8} = rt2;
2808 let Inst{7-6} = 0b01;
2809 let Inst{5-4} = opcod;
2814 let Inst{11-8} = Rd;
2815 let Inst{19-16} = Rn;
2816 let Inst{15-12} = Rt;
2819 let mayLoad = 1 in {
2820 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2821 Size4Bytes, NoItinerary, "ldrexb", "\t$Rt, [$Rn]",
2823 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2824 Size4Bytes, NoItinerary, "ldrexh", "\t$Rt, [$Rn]",
2826 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2827 Size4Bytes, NoItinerary,
2828 "ldrex", "\t$Rt, [$Rn]", "",
2830 let Inst{31-27} = 0b11101;
2831 let Inst{26-20} = 0b0000101;
2832 let Inst{11-8} = 0b1111;
2833 let Inst{7-0} = 0b00000000; // imm8 = 0
2835 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2), (ins rGPR:$Rn),
2836 AddrModeNone, Size4Bytes, NoItinerary,
2837 "ldrexd", "\t$Rt, $Rt2, [$Rn]", "",
2840 let Inst{11-8} = Rt2;
2844 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2845 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2846 AddrModeNone, Size4Bytes, NoItinerary,
2847 "strexb", "\t$Rd, $Rt, [$Rn]", "", []>;
2848 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2849 AddrModeNone, Size4Bytes, NoItinerary,
2850 "strexh", "\t$Rd, $Rt, [$Rn]", "", []>;
2851 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2852 AddrModeNone, Size4Bytes, NoItinerary,
2853 "strex", "\t$Rd, $Rt, [$Rn]", "",
2855 let Inst{31-27} = 0b11101;
2856 let Inst{26-20} = 0b0000100;
2857 let Inst{7-0} = 0b00000000; // imm8 = 0
2859 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2860 (ins rGPR:$Rt, rGPR:$Rt2, rGPR:$Rn),
2861 AddrModeNone, Size4Bytes, NoItinerary,
2862 "strexd", "\t$Rd, $Rt, $Rt2, [$Rn]", "", [],
2865 let Inst{11-8} = Rt2;
2869 // Clear-Exclusive is for disassembly only.
2870 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2871 [/* For disassembly only; pattern left blank */]>,
2872 Requires<[IsARM, HasV7]> {
2873 let Inst{31-20} = 0xf3b;
2874 let Inst{15-14} = 0b10;
2876 let Inst{7-4} = 0b0010;
2879 //===----------------------------------------------------------------------===//
2883 // __aeabi_read_tp preserves the registers r1-r3.
2885 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
2886 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2887 "bl\t__aeabi_read_tp",
2888 [(set R0, ARMthread_pointer)]> {
2889 let Inst{31-27} = 0b11110;
2890 let Inst{15-14} = 0b11;
2895 //===----------------------------------------------------------------------===//
2896 // SJLJ Exception handling intrinsics
2897 // eh_sjlj_setjmp() is an instruction sequence to store the return
2898 // address and save #0 in R0 for the non-longjmp case.
2899 // Since by its nature we may be coming from some other function to get
2900 // here, and we're using the stack frame for the containing function to
2901 // save/restore registers, we can't keep anything live in regs across
2902 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2903 // when we get here from a longjmp(). We force everthing out of registers
2904 // except for our own input by listing the relevant registers in Defs. By
2905 // doing so, we also cause the prologue/epilogue code to actively preserve
2906 // all of the callee-saved resgisters, which is exactly what we want.
2907 // $val is a scratch register for our use.
2909 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2910 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2911 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2912 D31 ], hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2913 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2914 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2915 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2916 Requires<[IsThumb2, HasVFP2]>;
2920 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2921 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2922 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2923 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2924 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2925 Requires<[IsThumb2, NoVFP]>;
2929 //===----------------------------------------------------------------------===//
2930 // Control-Flow Instructions
2933 // FIXME: remove when we have a way to marking a MI with these properties.
2934 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2936 // FIXME: Should pc be an implicit operand like PICADD, etc?
2937 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2938 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2939 def t2LDMIA_RET: T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2940 reglist:$regs, variable_ops),
2942 "ldmia${p}.w\t$Rn!, $regs",
2947 let Inst{31-27} = 0b11101;
2948 let Inst{26-25} = 0b00;
2949 let Inst{24-23} = 0b01; // Increment After
2951 let Inst{21} = 1; // Writeback
2953 let Inst{19-16} = Rn;
2954 let Inst{15-0} = regs;
2957 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2958 let isPredicable = 1 in
2959 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2961 [(br bb:$target)]> {
2962 let Inst{31-27} = 0b11110;
2963 let Inst{15-14} = 0b10;
2967 let Inst{26} = target{19};
2968 let Inst{11} = target{18};
2969 let Inst{13} = target{17};
2970 let Inst{21-16} = target{16-11};
2971 let Inst{10-0} = target{10-0};
2974 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2975 def t2BR_JT : tPseudoInst<(outs),
2976 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
2977 SizeSpecial, IIC_Br,
2978 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
2980 // FIXME: Add a non-pc based case that can be predicated.
2981 def t2TBB_JT : tPseudoInst<(outs),
2982 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2983 SizeSpecial, IIC_Br, []>;
2985 def t2TBH_JT : tPseudoInst<(outs),
2986 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2987 SizeSpecial, IIC_Br, []>;
2989 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
2990 "tbb", "\t[$Rn, $Rm]", []> {
2993 let Inst{27-20} = 0b10001101;
2994 let Inst{19-16} = Rn;
2995 let Inst{15-5} = 0b11110000000;
2996 let Inst{4} = 0; // B form
3000 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3001 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3004 let Inst{27-20} = 0b10001101;
3005 let Inst{19-16} = Rn;
3006 let Inst{15-5} = 0b11110000000;
3007 let Inst{4} = 1; // H form
3010 } // isNotDuplicable, isIndirectBranch
3012 } // isBranch, isTerminator, isBarrier
3014 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3015 // a two-value operand where a dag node expects two operands. :(
3016 let isBranch = 1, isTerminator = 1 in
3017 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3019 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3020 let Inst{31-27} = 0b11110;
3021 let Inst{15-14} = 0b10;
3025 let Inst{26} = target{19};
3026 let Inst{11} = target{18};
3027 let Inst{13} = target{17};
3028 let Inst{21-16} = target{16-11};
3029 let Inst{10-0} = target{10-0};
3034 let Defs = [ITSTATE] in
3035 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3036 AddrModeNone, Size2Bytes, IIC_iALUx,
3037 "it$mask\t$cc", "", []> {
3038 // 16-bit instruction.
3039 let Inst{31-16} = 0x0000;
3040 let Inst{15-8} = 0b10111111;
3045 let Inst{3-0} = mask;
3048 // Branch and Exchange Jazelle -- for disassembly only
3050 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3051 [/* For disassembly only; pattern left blank */]> {
3052 let Inst{31-27} = 0b11110;
3054 let Inst{25-20} = 0b111100;
3055 let Inst{15-14} = 0b10;
3059 let Inst{19-16} = func;
3062 // Change Processor State is a system instruction -- for disassembly only.
3063 // The singleton $opt operand contains the following information:
3064 // opt{4-0} = mode from Inst{4-0}
3065 // opt{5} = changemode from Inst{17}
3066 // opt{8-6} = AIF from Inst{8-6}
3067 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
3068 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
3069 [/* For disassembly only; pattern left blank */]> {
3070 let Inst{31-27} = 0b11110;
3072 let Inst{25-20} = 0b111010;
3073 let Inst{15-14} = 0b10;
3079 let Inst{4-0} = opt{4-0};
3082 let Inst{8} = opt{5};
3085 let Inst{5} = opt{6};
3088 let Inst{6} = opt{7};
3091 let Inst{7} = opt{8};
3094 let Inst{10-9} = opt{10-9};
3097 // A6.3.4 Branches and miscellaneous control
3098 // Table A6-14 Change Processor State, and hint instructions
3099 // Helper class for disassembly only.
3100 class T2I_hint<bits<8> op7_0, string opc, string asm>
3101 : T2I<(outs), (ins), NoItinerary, opc, asm,
3102 [/* For disassembly only; pattern left blank */]> {
3103 let Inst{31-20} = 0xf3a;
3104 let Inst{15-14} = 0b10;
3106 let Inst{10-8} = 0b000;
3107 let Inst{7-0} = op7_0;
3110 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3111 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3112 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3113 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3114 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3116 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
3117 [/* For disassembly only; pattern left blank */]> {
3118 let Inst{31-20} = 0xf3a;
3119 let Inst{15-14} = 0b10;
3121 let Inst{10-8} = 0b000;
3122 let Inst{7-4} = 0b1111;
3125 let Inst{3-0} = opt;
3128 // Secure Monitor Call is a system instruction -- for disassembly only
3129 // Option = Inst{19-16}
3130 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
3131 [/* For disassembly only; pattern left blank */]> {
3132 let Inst{31-27} = 0b11110;
3133 let Inst{26-20} = 0b1111111;
3134 let Inst{15-12} = 0b1000;
3137 let Inst{19-16} = opt;
3140 class T2SRS<bits<12> op31_20,
3141 dag oops, dag iops, InstrItinClass itin,
3142 string opc, string asm, list<dag> pattern>
3143 : T2I<oops, iops, itin, opc, asm, pattern> {
3144 let Inst{31-20} = op31_20{11-0};
3147 let Inst{4-0} = mode{4-0};
3150 // Store Return State is a system instruction -- for disassembly only
3151 def t2SRSDBW : T2SRS<0b111010000010,
3152 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3153 [/* For disassembly only; pattern left blank */]>;
3154 def t2SRSDB : T2SRS<0b111010000000,
3155 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3156 [/* For disassembly only; pattern left blank */]>;
3157 def t2SRSIAW : T2SRS<0b111010011010,
3158 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3159 [/* For disassembly only; pattern left blank */]>;
3160 def t2SRSIA : T2SRS<0b111010011000,
3161 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3162 [/* For disassembly only; pattern left blank */]>;
3164 // Return From Exception is a system instruction -- for disassembly only
3166 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3167 string opc, string asm, list<dag> pattern>
3168 : T2I<oops, iops, itin, opc, asm, pattern> {
3169 let Inst{31-20} = op31_20{11-0};
3172 let Inst{19-16} = Rn;
3175 def t2RFEDBW : T2RFE<0b111010000011,
3176 (outs), (ins rGPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3177 [/* For disassembly only; pattern left blank */]>;
3178 def t2RFEDB : T2RFE<0b111010000001,
3179 (outs), (ins rGPR:$Rn), NoItinerary, "rfeab", "\t$Rn",
3180 [/* For disassembly only; pattern left blank */]>;
3181 def t2RFEIAW : T2RFE<0b111010011011,
3182 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3183 [/* For disassembly only; pattern left blank */]>;
3184 def t2RFEIA : T2RFE<0b111010011001,
3185 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3186 [/* For disassembly only; pattern left blank */]>;
3188 //===----------------------------------------------------------------------===//
3189 // Non-Instruction Patterns
3192 // 32-bit immediate using movw + movt.
3193 // This is a single pseudo instruction to make it re-materializable.
3194 // FIXME: Remove this when we can do generalized remat.
3195 let isReMaterializable = 1, isMoveImm = 1 in
3196 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3197 [(set rGPR:$dst, (i32 imm:$src))]>,
3198 Requires<[IsThumb, HasV6T2]>;
3200 // ConstantPool, GlobalAddress, and JumpTable
3201 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3202 Requires<[IsThumb2, DontUseMovt]>;
3203 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3204 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3205 Requires<[IsThumb2, UseMovt]>;
3207 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3208 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3210 // Pseudo instruction that combines ldr from constpool and add pc. This should
3211 // be expanded into two instructions late to allow if-conversion and
3213 let canFoldAsLoad = 1, isReMaterializable = 1 in
3214 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3216 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3218 Requires<[IsThumb2]>;
3220 //===----------------------------------------------------------------------===//
3221 // Move between special register and ARM core register -- for disassembly only
3224 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3225 dag oops, dag iops, InstrItinClass itin,
3226 string opc, string asm, list<dag> pattern>
3227 : T2I<oops, iops, itin, opc, asm, pattern> {
3228 let Inst{31-20} = op31_20{11-0};
3229 let Inst{15-14} = op15_14{1-0};
3230 let Inst{12} = op12{0};
3233 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3234 dag oops, dag iops, InstrItinClass itin,
3235 string opc, string asm, list<dag> pattern>
3236 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3238 let Inst{11-8} = Rd;
3241 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3242 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3243 [/* For disassembly only; pattern left blank */]>;
3244 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3245 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3246 [/* For disassembly only; pattern left blank */]>;
3248 class T2MSR<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3249 dag oops, dag iops, InstrItinClass itin,
3250 string opc, string asm, list<dag> pattern>
3251 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3254 let Inst{19-16} = Rn;
3255 let Inst{11-8} = mask;
3258 def t2MSR : T2MSR<0b111100111000, 0b10, 0,
3259 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3261 [/* For disassembly only; pattern left blank */]>;
3262 def t2MSRsys : T2MSR<0b111100111001, 0b10, 0,
3263 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3265 [/* For disassembly only; pattern left blank */]>;