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;
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))]> {
615 let Inst{31-27} = 0b11110;
616 let Inst{26} = imm{11};
617 let Inst{25-24} = 0b10;
618 let Inst{23-21} = op23_21;
619 let Inst{20} = 0; // The S bit.
620 let Inst{19-16} = Rn;
622 let Inst{14-12} = imm{10-8};
624 let Inst{7-0} = imm{7-0};
627 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), IIC_iALUr,
628 opc, ".w\t$Rd, $Rn, $Rm",
629 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
630 let isCommutable = Commutable;
631 let Inst{31-27} = 0b11101;
632 let Inst{26-25} = 0b01;
634 let Inst{23-21} = op23_21;
635 let Inst{14-12} = 0b000; // imm3
636 let Inst{7-6} = 0b00; // imm2
637 let Inst{5-4} = 0b00; // type
640 def rs : T2sTwoRegShiftedReg<
641 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
642 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
643 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
644 let Inst{31-27} = 0b11101;
645 let Inst{26-25} = 0b01;
647 let Inst{23-21} = op23_21;
651 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
652 /// for a binary operation that produces a value and use the carry
653 /// bit. It's not predicable.
654 let Uses = [CPSR] in {
655 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
656 bit Commutable = 0> {
658 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
659 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
660 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
661 Requires<[IsThumb2]> {
662 let Inst{31-27} = 0b11110;
664 let Inst{24-21} = opcod;
668 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
669 opc, ".w\t$Rd, $Rn, $Rm",
670 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
671 Requires<[IsThumb2]> {
672 let isCommutable = Commutable;
673 let Inst{31-27} = 0b11101;
674 let Inst{26-25} = 0b01;
675 let Inst{24-21} = opcod;
676 let Inst{14-12} = 0b000; // imm3
677 let Inst{7-6} = 0b00; // imm2
678 let Inst{5-4} = 0b00; // type
681 def rs : T2sTwoRegShiftedReg<
682 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
683 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
684 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
685 Requires<[IsThumb2]> {
686 let Inst{31-27} = 0b11101;
687 let Inst{26-25} = 0b01;
688 let Inst{24-21} = opcod;
692 // Carry setting variants
693 let Defs = [CPSR] in {
694 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
695 bit Commutable = 0> {
697 def ri : T2sTwoRegImm<
698 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
699 opc, "\t$Rd, $Rn, $imm",
700 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
701 Requires<[IsThumb2]> {
702 let Inst{31-27} = 0b11110;
704 let Inst{24-21} = opcod;
705 let Inst{20} = 1; // The S bit.
709 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
710 opc, ".w\t$Rd, $Rn, $Rm",
711 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
712 Requires<[IsThumb2]> {
713 let isCommutable = Commutable;
714 let Inst{31-27} = 0b11101;
715 let Inst{26-25} = 0b01;
716 let Inst{24-21} = opcod;
717 let Inst{20} = 1; // The S bit.
718 let Inst{14-12} = 0b000; // imm3
719 let Inst{7-6} = 0b00; // imm2
720 let Inst{5-4} = 0b00; // type
723 def rs : T2sTwoRegShiftedReg<
724 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
725 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
726 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
727 Requires<[IsThumb2]> {
728 let Inst{31-27} = 0b11101;
729 let Inst{26-25} = 0b01;
730 let Inst{24-21} = opcod;
731 let Inst{20} = 1; // The S bit.
737 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
738 /// version is not needed since this is only for codegen.
739 let Defs = [CPSR] in {
740 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
742 def ri : T2TwoRegImm<
743 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
744 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
745 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
746 let Inst{31-27} = 0b11110;
748 let Inst{24-21} = opcod;
749 let Inst{20} = 1; // The S bit.
753 def rs : T2TwoRegShiftedReg<
754 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
755 IIC_iALUsi, !strconcat(opc, "s"), "\t$Rd, $Rn, $ShiftedRm",
756 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
757 let Inst{31-27} = 0b11101;
758 let Inst{26-25} = 0b01;
759 let Inst{24-21} = opcod;
760 let Inst{20} = 1; // The S bit.
765 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
766 // rotate operation that produces a value.
767 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
769 def ri : T2sTwoRegShiftImm<
770 (outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$imm), IIC_iMOVsi,
771 opc, ".w\t$Rd, $Rm, $imm",
772 [(set rGPR:$Rd, (opnode rGPR:$Rm, imm1_31:$imm))]> {
773 let Inst{31-27} = 0b11101;
774 let Inst{26-21} = 0b010010;
775 let Inst{19-16} = 0b1111; // Rn
776 let Inst{5-4} = opcod;
779 def rr : T2sThreeReg<
780 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
781 opc, ".w\t$Rd, $Rn, $Rm",
782 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
783 let Inst{31-27} = 0b11111;
784 let Inst{26-23} = 0b0100;
785 let Inst{22-21} = opcod;
786 let Inst{15-12} = 0b1111;
787 let Inst{7-4} = 0b0000;
791 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
792 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
793 /// a explicit result, only implicitly set CPSR.
794 let isCompare = 1, Defs = [CPSR] in {
795 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
796 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
799 def ri : T2OneRegCmpImm<
800 (outs), (ins GPR:$Rn, t2_so_imm:$imm), iii,
801 opc, ".w\t$Rn, $imm",
802 [(opnode GPR:$Rn, t2_so_imm:$imm)]> {
803 let Inst{31-27} = 0b11110;
805 let Inst{24-21} = opcod;
806 let Inst{20} = 1; // The S bit.
808 let Inst{11-8} = 0b1111; // Rd
811 def rr : T2TwoRegCmp<
812 (outs), (ins GPR:$lhs, rGPR:$rhs), iir,
813 opc, ".w\t$lhs, $rhs",
814 [(opnode GPR:$lhs, rGPR:$rhs)]> {
815 let Inst{31-27} = 0b11101;
816 let Inst{26-25} = 0b01;
817 let Inst{24-21} = opcod;
818 let Inst{20} = 1; // The S bit.
819 let Inst{14-12} = 0b000; // imm3
820 let Inst{11-8} = 0b1111; // Rd
821 let Inst{7-6} = 0b00; // imm2
822 let Inst{5-4} = 0b00; // type
825 def rs : T2OneRegCmpShiftedReg<
826 (outs), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
827 opc, ".w\t$Rn, $ShiftedRm",
828 [(opnode GPR:$Rn, t2_so_reg:$ShiftedRm)]> {
829 let Inst{31-27} = 0b11101;
830 let Inst{26-25} = 0b01;
831 let Inst{24-21} = opcod;
832 let Inst{20} = 1; // The S bit.
833 let Inst{11-8} = 0b1111; // Rd
838 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
839 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
840 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
841 def i12 : T2Ii12<(outs GPR:$Rt), (ins t2addrmode_imm12:$addr), iii,
842 opc, ".w\t$Rt, $addr",
843 [(set GPR:$Rt, (opnode t2addrmode_imm12:$addr))]> {
844 let Inst{31-27} = 0b11111;
845 let Inst{26-25} = 0b00;
846 let Inst{24} = signed;
848 let Inst{22-21} = opcod;
849 let Inst{20} = 1; // load
852 let Inst{15-12} = Rt;
855 let Inst{19-16} = addr{16-13}; // Rn
856 let Inst{23} = addr{12}; // U
857 let Inst{11-0} = addr{11-0}; // imm
859 def i8 : T2Ii8 <(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), iii,
861 [(set GPR:$Rt, (opnode t2addrmode_imm8:$addr))]> {
862 let Inst{31-27} = 0b11111;
863 let Inst{26-25} = 0b00;
864 let Inst{24} = signed;
866 let Inst{22-21} = opcod;
867 let Inst{20} = 1; // load
869 // Offset: index==TRUE, wback==FALSE
870 let Inst{10} = 1; // The P bit.
871 let Inst{8} = 0; // The W bit.
874 let Inst{15-12} = Rt;
877 let Inst{19-16} = addr{12-9}; // Rn
878 let Inst{9} = addr{8}; // U
879 let Inst{7-0} = addr{7-0}; // imm
881 def s : T2Iso <(outs GPR:$Rt), (ins t2addrmode_so_reg:$addr), iis,
882 opc, ".w\t$Rt, $addr",
883 [(set GPR:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
884 let Inst{31-27} = 0b11111;
885 let Inst{26-25} = 0b00;
886 let Inst{24} = signed;
888 let Inst{22-21} = opcod;
889 let Inst{20} = 1; // load
890 let Inst{11-6} = 0b000000;
893 let Inst{15-12} = Rt;
896 let Inst{19-16} = addr{9-6}; // Rn
897 let Inst{3-0} = addr{5-2}; // Rm
898 let Inst{5-4} = addr{1-0}; // imm
901 def pci : tPseudoInst<(outs GPR:$Rt), (ins i32imm:$addr), Size4Bytes, iis,
902 [(set GPR:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]>;
905 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
906 multiclass T2I_st<bits<2> opcod, string opc,
907 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
908 def i12 : T2Ii12<(outs), (ins GPR:$Rt, t2addrmode_imm12:$addr), iii,
909 opc, ".w\t$Rt, $addr",
910 [(opnode GPR:$Rt, t2addrmode_imm12:$addr)]> {
911 let Inst{31-27} = 0b11111;
912 let Inst{26-23} = 0b0001;
913 let Inst{22-21} = opcod;
914 let Inst{20} = 0; // !load
917 let Inst{15-12} = Rt;
920 let Inst{19-16} = addr{16-13}; // Rn
921 let Inst{23} = addr{12}; // U
922 let Inst{11-0} = addr{11-0}; // imm
924 def i8 : T2Ii8 <(outs), (ins GPR:$Rt, t2addrmode_imm8:$addr), iii,
926 [(opnode GPR:$Rt, t2addrmode_imm8:$addr)]> {
927 let Inst{31-27} = 0b11111;
928 let Inst{26-23} = 0b0000;
929 let Inst{22-21} = opcod;
930 let Inst{20} = 0; // !load
932 // Offset: index==TRUE, wback==FALSE
933 let Inst{10} = 1; // The P bit.
934 let Inst{8} = 0; // The W bit.
937 let Inst{15-12} = Rt;
940 let Inst{19-16} = addr{12-9}; // Rn
941 let Inst{9} = addr{8}; // U
942 let Inst{7-0} = addr{7-0}; // imm
944 def s : T2Iso <(outs), (ins GPR:$Rt, t2addrmode_so_reg:$addr), iis,
945 opc, ".w\t$Rt, $addr",
946 [(opnode GPR:$Rt, t2addrmode_so_reg:$addr)]> {
947 let Inst{31-27} = 0b11111;
948 let Inst{26-23} = 0b0000;
949 let Inst{22-21} = opcod;
950 let Inst{20} = 0; // !load
951 let Inst{11-6} = 0b000000;
954 let Inst{15-12} = Rt;
957 let Inst{19-16} = addr{9-6}; // Rn
958 let Inst{3-0} = addr{5-2}; // Rm
959 let Inst{5-4} = addr{1-0}; // imm
963 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
964 /// register and one whose operand is a register rotated by 8/16/24.
965 multiclass T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> {
966 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
968 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
969 let Inst{31-27} = 0b11111;
970 let Inst{26-23} = 0b0100;
971 let Inst{22-20} = opcod;
972 let Inst{19-16} = 0b1111; // Rn
973 let Inst{15-12} = 0b1111;
975 let Inst{5-4} = 0b00; // rotate
977 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
978 opc, ".w\t$Rd, $Rm, ror $rot",
979 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]> {
980 let Inst{31-27} = 0b11111;
981 let Inst{26-23} = 0b0100;
982 let Inst{22-20} = opcod;
983 let Inst{19-16} = 0b1111; // Rn
984 let Inst{15-12} = 0b1111;
988 let Inst{5-4} = rot{1-0}; // rotate
992 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
993 multiclass T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
994 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
996 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>,
997 Requires<[HasT2ExtractPack, IsThumb2]> {
998 let Inst{31-27} = 0b11111;
999 let Inst{26-23} = 0b0100;
1000 let Inst{22-20} = opcod;
1001 let Inst{19-16} = 0b1111; // Rn
1002 let Inst{15-12} = 0b1111;
1004 let Inst{5-4} = 0b00; // rotate
1006 def r_rot : T2TwoReg<(outs rGPR:$dst), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1007 opc, "\t$dst, $Rm, ror $rot",
1008 [(set rGPR:$dst, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1009 Requires<[HasT2ExtractPack, IsThumb2]> {
1010 let Inst{31-27} = 0b11111;
1011 let Inst{26-23} = 0b0100;
1012 let Inst{22-20} = opcod;
1013 let Inst{19-16} = 0b1111; // Rn
1014 let Inst{15-12} = 0b1111;
1018 let Inst{5-4} = rot{1-0}; // rotate
1022 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1024 multiclass T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> {
1025 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1026 opc, "\t$Rd, $Rm", []> {
1027 let Inst{31-27} = 0b11111;
1028 let Inst{26-23} = 0b0100;
1029 let Inst{22-20} = opcod;
1030 let Inst{19-16} = 0b1111; // Rn
1031 let Inst{15-12} = 0b1111;
1033 let Inst{5-4} = 0b00; // rotate
1035 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1036 opc, "\t$Rd, $Rm, ror $rot", []> {
1037 let Inst{31-27} = 0b11111;
1038 let Inst{26-23} = 0b0100;
1039 let Inst{22-20} = opcod;
1040 let Inst{19-16} = 0b1111; // Rn
1041 let Inst{15-12} = 0b1111;
1045 let Inst{5-4} = rot{1-0}; // rotate
1049 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1050 /// register and one whose operand is a register rotated by 8/16/24.
1051 multiclass T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> {
1052 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1053 opc, "\t$Rd, $Rn, $Rm",
1054 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
1055 Requires<[HasT2ExtractPack, IsThumb2]> {
1056 let Inst{31-27} = 0b11111;
1057 let Inst{26-23} = 0b0100;
1058 let Inst{22-20} = opcod;
1059 let Inst{15-12} = 0b1111;
1061 let Inst{5-4} = 0b00; // rotate
1063 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1064 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot",
1065 [(set rGPR:$Rd, (opnode rGPR:$Rn,
1066 (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1067 Requires<[HasT2ExtractPack, IsThumb2]> {
1068 let Inst{31-27} = 0b11111;
1069 let Inst{26-23} = 0b0100;
1070 let Inst{22-20} = opcod;
1071 let Inst{15-12} = 0b1111;
1075 let Inst{5-4} = rot{1-0}; // rotate
1079 // DO variant - disassembly only, no pattern
1081 multiclass T2I_exta_rrot_DO<bits<3> opcod, string opc> {
1082 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1083 opc, "\t$Rd, $Rn, $Rm", []> {
1084 let Inst{31-27} = 0b11111;
1085 let Inst{26-23} = 0b0100;
1086 let Inst{22-20} = opcod;
1087 let Inst{15-12} = 0b1111;
1089 let Inst{5-4} = 0b00; // rotate
1091 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1092 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot", []> {
1093 let Inst{31-27} = 0b11111;
1094 let Inst{26-23} = 0b0100;
1095 let Inst{22-20} = opcod;
1096 let Inst{15-12} = 0b1111;
1100 let Inst{5-4} = rot{1-0}; // rotate
1104 //===----------------------------------------------------------------------===//
1106 //===----------------------------------------------------------------------===//
1108 //===----------------------------------------------------------------------===//
1109 // Miscellaneous Instructions.
1112 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1113 string asm, list<dag> pattern>
1114 : T2XI<oops, iops, itin, asm, pattern> {
1118 let Inst{11-8} = Rd;
1119 let Inst{26} = label{11};
1120 let Inst{14-12} = label{10-8};
1121 let Inst{7-0} = label{7-0};
1124 // LEApcrel - Load a pc-relative address into a register without offending the
1126 let neverHasSideEffects = 1 in {
1127 let isReMaterializable = 1 in
1128 def t2LEApcrel : T2PCOneRegImm<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p), IIC_iALUi,
1129 "adr${p}.w\t$Rd, #$label", []> {
1130 let Inst{31-27} = 0b11110;
1131 let Inst{25-24} = 0b10;
1132 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1135 let Inst{19-16} = 0b1111; // Rn
1140 } // neverHasSideEffects
1141 def t2LEApcrelJT : T2PCOneRegImm<(outs rGPR:$Rd),
1142 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
1143 "adr${p}.w\t$Rd, #${label}_${id}", []> {
1144 let Inst{31-27} = 0b11110;
1145 let Inst{25-24} = 0b10;
1146 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1149 let Inst{19-16} = 0b1111; // Rn
1153 // ADD r, sp, {so_imm|i12}
1154 def t2ADDrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1155 IIC_iALUi, "add", ".w\t$Rd, $sp, $imm", []> {
1156 let Inst{31-27} = 0b11110;
1158 let Inst{24-21} = 0b1000;
1159 let Inst{19-16} = 0b1101; // Rn = sp
1162 def t2ADDrSPi12 : T2I<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1163 IIC_iALUi, "addw", "\t$Rd, $sp, $imm", []> {
1166 let Inst{31-27} = 0b11110;
1167 let Inst{26} = imm{11};
1168 let Inst{25-20} = 0b100000;
1169 let Inst{19-16} = 0b1101; // Rn = sp
1171 let Inst{14-12} = imm{10-8};
1172 let Inst{11-8} = Rd;
1173 let Inst{7-0} = imm{7-0};
1176 // ADD r, sp, so_reg
1177 def t2ADDrSPs : T2sTwoRegShiftedReg<
1178 (outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$ShiftedRm),
1179 IIC_iALUsi, "add", ".w\t$Rd, $sp, $ShiftedRm", []> {
1180 let Inst{31-27} = 0b11101;
1181 let Inst{26-25} = 0b01;
1182 let Inst{24-21} = 0b1000;
1183 let Inst{19-16} = 0b1101; // Rn = sp
1187 // SUB r, sp, {so_imm|i12}
1188 def t2SUBrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1189 IIC_iALUi, "sub", ".w\t$Rd, $sp, $imm", []> {
1190 let Inst{31-27} = 0b11110;
1192 let Inst{24-21} = 0b1101;
1193 let Inst{19-16} = 0b1101; // Rn = sp
1196 def t2SUBrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1197 IIC_iALUi, "subw", "\t$Rd, $sp, $imm", []> {
1198 let Inst{31-27} = 0b11110;
1200 let Inst{24-21} = 0b0101;
1201 let Inst{20} = 0; // The S bit.
1202 let Inst{19-16} = 0b1101; // Rn = sp
1206 // SUB r, sp, so_reg
1207 def t2SUBrSPs : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$imm),
1209 "sub", "\t$Rd, $sp, $imm", []> {
1210 let Inst{31-27} = 0b11101;
1211 let Inst{26-25} = 0b01;
1212 let Inst{24-21} = 0b1101;
1213 let Inst{19-16} = 0b1101; // Rn = sp
1217 // Signed and unsigned division on v7-M
1218 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1219 "sdiv", "\t$Rd, $Rn, $Rm",
1220 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
1221 Requires<[HasDivide, IsThumb2]> {
1222 let Inst{31-27} = 0b11111;
1223 let Inst{26-21} = 0b011100;
1225 let Inst{15-12} = 0b1111;
1226 let Inst{7-4} = 0b1111;
1229 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1230 "udiv", "\t$Rd, $Rn, $Rm",
1231 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
1232 Requires<[HasDivide, IsThumb2]> {
1233 let Inst{31-27} = 0b11111;
1234 let Inst{26-21} = 0b011101;
1236 let Inst{15-12} = 0b1111;
1237 let Inst{7-4} = 0b1111;
1240 //===----------------------------------------------------------------------===//
1241 // Load / store Instructions.
1245 let canFoldAsLoad = 1, isReMaterializable = 1 in
1246 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
1247 UnOpFrag<(load node:$Src)>>;
1249 // Loads with zero extension
1250 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1251 UnOpFrag<(zextloadi16 node:$Src)>>;
1252 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1253 UnOpFrag<(zextloadi8 node:$Src)>>;
1255 // Loads with sign extension
1256 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1257 UnOpFrag<(sextloadi16 node:$Src)>>;
1258 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1259 UnOpFrag<(sextloadi8 node:$Src)>>;
1261 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1263 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1264 (ins t2addrmode_imm8s4:$addr),
1265 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", []>;
1266 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1268 // zextload i1 -> zextload i8
1269 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1270 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1271 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
1272 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1273 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1274 (t2LDRBs t2addrmode_so_reg:$addr)>;
1275 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1276 (t2LDRBpci tconstpool:$addr)>;
1278 // extload -> zextload
1279 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1281 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1282 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1283 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
1284 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1285 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1286 (t2LDRBs t2addrmode_so_reg:$addr)>;
1287 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1288 (t2LDRBpci tconstpool:$addr)>;
1290 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1291 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1292 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
1293 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1294 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1295 (t2LDRBs t2addrmode_so_reg:$addr)>;
1296 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1297 (t2LDRBpci tconstpool:$addr)>;
1299 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1300 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1301 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
1302 (t2LDRHi8 t2addrmode_imm8:$addr)>;
1303 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1304 (t2LDRHs t2addrmode_so_reg:$addr)>;
1305 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1306 (t2LDRHpci tconstpool:$addr)>;
1308 // FIXME: The destination register of the loads and stores can't be PC, but
1309 // can be SP. We need another regclass (similar to rGPR) to represent
1310 // that. Not a pressing issue since these are selected manually,
1315 class T2Iidxld<bit signed, bits<2> opcod, bit pre,
1317 AddrMode am, IndexMode im, InstrItinClass itin,
1318 string opc, string asm, string cstr, list<dag> pattern>
1319 : T2Iidxldst<signed, opcod, 1, pre, oops,
1320 iops, am,im,itin, opc, asm, cstr, pattern>;
1321 class T2Iidxst<bit signed, bits<2> opcod, bit pre,
1323 AddrMode am, IndexMode im, InstrItinClass itin,
1324 string opc, string asm, string cstr, list<dag> pattern>
1325 : T2Iidxldst<signed, opcod, 0, pre, oops,
1326 iops, am,im,itin, opc, asm, cstr, pattern>;
1328 let mayLoad = 1, neverHasSideEffects = 1 in {
1329 def t2LDR_PRE : T2Iidxld<0, 0b10, 1, (outs GPR:$Rt, GPR:$Rn),
1330 (ins t2addrmode_imm8:$addr),
1331 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1332 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1335 def t2LDR_POST : T2Iidxld<0, 0b10, 0, (outs GPR:$Rt, GPR:$Rn),
1336 (ins GPR:$base, t2am_imm8_offset:$offset),
1337 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1338 "ldr", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1341 def t2LDRB_PRE : T2Iidxld<0, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1342 (ins t2addrmode_imm8:$addr),
1343 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1344 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1346 def t2LDRB_POST : T2Iidxld<0, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1347 (ins GPR:$base, t2am_imm8_offset:$offset),
1348 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1349 "ldrb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1352 def t2LDRH_PRE : T2Iidxld<0, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1353 (ins t2addrmode_imm8:$addr),
1354 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1355 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1357 def t2LDRH_POST : T2Iidxld<0, 0b01, 0, (outs GPR:$Rt, GPR:$Rn),
1358 (ins GPR:$base, t2am_imm8_offset:$offset),
1359 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1360 "ldrh", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1363 def t2LDRSB_PRE : T2Iidxld<1, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1364 (ins t2addrmode_imm8:$addr),
1365 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1366 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1368 def t2LDRSB_POST : T2Iidxld<1, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1369 (ins GPR:$base, t2am_imm8_offset:$offset),
1370 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1371 "ldrsb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1374 def t2LDRSH_PRE : T2Iidxld<1, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1375 (ins t2addrmode_imm8:$addr),
1376 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1377 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1379 def t2LDRSH_POST : T2Iidxld<1, 0b01, 0, (outs GPR:$dst, GPR:$Rn),
1380 (ins GPR:$base, t2am_imm8_offset:$offset),
1381 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1382 "ldrsh", "\t$dst, [$Rn], $offset", "$base = $Rn",
1384 } // mayLoad = 1, neverHasSideEffects = 1
1386 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1387 // for disassembly only.
1388 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1389 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1390 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1391 "\t$Rt, $addr", []> {
1392 let Inst{31-27} = 0b11111;
1393 let Inst{26-25} = 0b00;
1394 let Inst{24} = signed;
1396 let Inst{22-21} = type;
1397 let Inst{20} = 1; // load
1399 let Inst{10-8} = 0b110; // PUW.
1403 let Inst{15-12} = Rt;
1404 let Inst{19-16} = addr{12-9};
1405 let Inst{7-0} = addr{7-0};
1408 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1409 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1410 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1411 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1412 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1415 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1416 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1417 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1418 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1419 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1420 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1423 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1424 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1425 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1426 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
1429 def t2STR_PRE : T2Iidxst<0, 0b10, 1, (outs GPR:$base_wb),
1430 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1431 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1432 "str", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1434 (pre_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1436 def t2STR_POST : T2Iidxst<0, 0b10, 0, (outs GPR:$base_wb),
1437 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1438 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1439 "str", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1441 (post_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1443 def t2STRH_PRE : T2Iidxst<0, 0b01, 1, (outs GPR:$base_wb),
1444 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1445 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1446 "strh", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1448 (pre_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1450 def t2STRH_POST : T2Iidxst<0, 0b01, 0, (outs GPR:$base_wb),
1451 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1452 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1453 "strh", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1455 (post_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1457 def t2STRB_PRE : T2Iidxst<0, 0b00, 1, (outs GPR:$base_wb),
1458 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1459 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1460 "strb", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1462 (pre_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1464 def t2STRB_POST : T2Iidxst<0, 0b00, 0, (outs GPR:$base_wb),
1465 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1466 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1467 "strb", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1469 (post_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1471 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1473 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1474 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1475 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1476 "\t$Rt, $addr", []> {
1477 let Inst{31-27} = 0b11111;
1478 let Inst{26-25} = 0b00;
1479 let Inst{24} = 0; // not signed
1481 let Inst{22-21} = type;
1482 let Inst{20} = 0; // store
1484 let Inst{10-8} = 0b110; // PUW
1488 let Inst{15-12} = Rt;
1489 let Inst{19-16} = addr{12-9};
1490 let Inst{7-0} = addr{7-0};
1493 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1494 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1495 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1497 // ldrd / strd pre / post variants
1498 // For disassembly only.
1500 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1501 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1502 "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1504 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1505 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1506 "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
1508 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1509 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1510 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1512 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1513 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1514 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
1516 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1517 // data/instruction access. These are for disassembly only.
1518 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1519 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1520 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1522 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1524 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1525 let Inst{31-25} = 0b1111100;
1526 let Inst{24} = instr;
1528 let Inst{21} = write;
1530 let Inst{15-12} = 0b1111;
1533 let Inst{19-16} = addr{16-13}; // Rn
1534 let Inst{23} = addr{12}; // U
1535 let Inst{11-0} = addr{11-0}; // imm12
1538 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1540 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1541 let Inst{31-25} = 0b1111100;
1542 let Inst{24} = instr;
1543 let Inst{23} = 0; // U = 0
1545 let Inst{21} = write;
1547 let Inst{15-12} = 0b1111;
1548 let Inst{11-8} = 0b1100;
1551 let Inst{19-16} = addr{12-9}; // Rn
1552 let Inst{7-0} = addr{7-0}; // imm8
1555 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1557 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1558 let Inst{31-25} = 0b1111100;
1559 let Inst{24} = instr;
1560 let Inst{23} = 0; // add = TRUE for T1
1562 let Inst{21} = write;
1564 let Inst{15-12} = 0b1111;
1565 let Inst{11-6} = 0000000;
1568 let Inst{19-16} = addr{9-6}; // Rn
1569 let Inst{3-0} = addr{5-2}; // Rm
1570 let Inst{5-4} = addr{1-0}; // imm2
1574 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1575 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1576 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1578 //===----------------------------------------------------------------------===//
1579 // Load / store multiple Instructions.
1582 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1583 InstrItinClass itin_upd, bit L_bit> {
1585 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1586 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1590 let Inst{31-27} = 0b11101;
1591 let Inst{26-25} = 0b00;
1592 let Inst{24-23} = 0b01; // Increment After
1594 let Inst{21} = 0; // No writeback
1595 let Inst{20} = L_bit;
1596 let Inst{19-16} = Rn;
1597 let Inst{15-0} = regs;
1600 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1601 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1605 let Inst{31-27} = 0b11101;
1606 let Inst{26-25} = 0b00;
1607 let Inst{24-23} = 0b01; // Increment After
1609 let Inst{21} = 1; // Writeback
1610 let Inst{20} = L_bit;
1611 let Inst{19-16} = Rn;
1612 let Inst{15-0} = regs;
1615 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1616 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1620 let Inst{31-27} = 0b11101;
1621 let Inst{26-25} = 0b00;
1622 let Inst{24-23} = 0b10; // Decrement Before
1624 let Inst{21} = 0; // No writeback
1625 let Inst{20} = L_bit;
1626 let Inst{19-16} = Rn;
1627 let Inst{15-0} = regs;
1630 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1631 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1635 let Inst{31-27} = 0b11101;
1636 let Inst{26-25} = 0b00;
1637 let Inst{24-23} = 0b10; // Decrement Before
1639 let Inst{21} = 1; // Writeback
1640 let Inst{20} = L_bit;
1641 let Inst{19-16} = Rn;
1642 let Inst{15-0} = regs;
1646 let neverHasSideEffects = 1 in {
1648 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1649 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1651 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1652 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1654 } // neverHasSideEffects
1657 //===----------------------------------------------------------------------===//
1658 // Move Instructions.
1661 let neverHasSideEffects = 1 in
1662 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1663 "mov", ".w\t$Rd, $Rm", []> {
1664 let Inst{31-27} = 0b11101;
1665 let Inst{26-25} = 0b01;
1666 let Inst{24-21} = 0b0010;
1667 let Inst{19-16} = 0b1111; // Rn
1668 let Inst{14-12} = 0b000;
1669 let Inst{7-4} = 0b0000;
1672 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1673 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1674 AddedComplexity = 1 in
1675 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1676 "mov", ".w\t$Rd, $imm",
1677 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1678 let Inst{31-27} = 0b11110;
1680 let Inst{24-21} = 0b0010;
1681 let Inst{19-16} = 0b1111; // Rn
1685 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1686 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins i32imm:$imm), IIC_iMOVi,
1687 "movw", "\t$Rd, $imm",
1688 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1689 let Inst{31-27} = 0b11110;
1691 let Inst{24-21} = 0b0010;
1692 let Inst{20} = 0; // The S bit.
1698 let Inst{11-8} = Rd;
1699 let Inst{19-16} = imm{15-12};
1700 let Inst{26} = imm{11};
1701 let Inst{14-12} = imm{10-8};
1702 let Inst{7-0} = imm{7-0};
1705 let Constraints = "$src = $Rd" in
1706 def t2MOVTi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1707 "movt", "\t$Rd, $imm",
1709 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1710 let Inst{31-27} = 0b11110;
1712 let Inst{24-21} = 0b0110;
1713 let Inst{20} = 0; // The S bit.
1719 let Inst{11-8} = Rd;
1720 let Inst{19-16} = imm{15-12};
1721 let Inst{26} = imm{11};
1722 let Inst{14-12} = imm{10-8};
1723 let Inst{7-0} = imm{7-0};
1726 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1728 //===----------------------------------------------------------------------===//
1729 // Extend Instructions.
1734 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1735 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1736 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1737 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1738 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1740 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1741 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1742 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1743 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1744 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1746 // TODO: SXT(A){B|H}16 - done for disassembly only
1750 let AddedComplexity = 16 in {
1751 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1752 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1753 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1754 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1755 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1756 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1758 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1759 // The transformation should probably be done as a combiner action
1760 // instead so we can include a check for masking back in the upper
1761 // eight bits of the source into the lower eight bits of the result.
1762 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1763 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1764 // Requires<[HasT2ExtractPack, IsThumb2]>;
1765 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1766 (t2UXTB16r_rot rGPR:$Src, 8)>,
1767 Requires<[HasT2ExtractPack, IsThumb2]>;
1769 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1770 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1771 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1772 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1773 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1776 //===----------------------------------------------------------------------===//
1777 // Arithmetic Instructions.
1780 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1781 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1782 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1783 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1785 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1786 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1787 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1788 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1789 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1790 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1791 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1793 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1794 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1795 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1796 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1797 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1798 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1799 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1800 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1803 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1804 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1805 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1806 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1808 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1809 // The assume-no-carry-in form uses the negation of the input since add/sub
1810 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1811 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1813 // The AddedComplexity preferences the first variant over the others since
1814 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1815 let AddedComplexity = 1 in
1816 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1817 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1818 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1819 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1820 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1821 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1822 let AddedComplexity = 1 in
1823 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1824 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1825 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1826 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1827 // The with-carry-in form matches bitwise not instead of the negation.
1828 // Effectively, the inverse interpretation of the carry flag already accounts
1829 // for part of the negation.
1830 let AddedComplexity = 1 in
1831 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1832 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1833 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1834 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1836 // Select Bytes -- for disassembly only
1838 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1839 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []> {
1840 let Inst{31-27} = 0b11111;
1841 let Inst{26-24} = 0b010;
1843 let Inst{22-20} = 0b010;
1844 let Inst{15-12} = 0b1111;
1846 let Inst{6-4} = 0b000;
1849 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1850 // And Miscellaneous operations -- for disassembly only
1851 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1852 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1853 : T2I<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), NoItinerary, opc,
1854 "\t$Rd, $Rn, $Rm", pat> {
1855 let Inst{31-27} = 0b11111;
1856 let Inst{26-23} = 0b0101;
1857 let Inst{22-20} = op22_20;
1858 let Inst{15-12} = 0b1111;
1859 let Inst{7-4} = op7_4;
1865 let Inst{11-8} = Rd;
1866 let Inst{19-16} = Rn;
1870 // Saturating add/subtract -- for disassembly only
1872 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1873 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))]>;
1874 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1875 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1876 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1877 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1878 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1879 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1880 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1881 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))]>;
1882 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1883 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1884 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1885 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1886 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1887 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1888 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1889 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1891 // Signed/Unsigned add/subtract -- for disassembly only
1893 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1894 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1895 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1896 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1897 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1898 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1899 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1900 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1901 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1902 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1903 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1904 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1906 // Signed/Unsigned halving add/subtract -- for disassembly only
1908 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1909 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1910 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1911 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1912 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1913 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1914 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1915 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1916 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1917 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1918 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1919 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1921 // Helper class for disassembly only
1922 // A6.3.16 & A6.3.17
1923 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1924 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1925 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1926 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1927 let Inst{31-27} = 0b11111;
1928 let Inst{26-24} = 0b011;
1929 let Inst{23} = long;
1930 let Inst{22-20} = op22_20;
1931 let Inst{7-4} = op7_4;
1934 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1935 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1936 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1937 let Inst{31-27} = 0b11111;
1938 let Inst{26-24} = 0b011;
1939 let Inst{23} = long;
1940 let Inst{22-20} = op22_20;
1941 let Inst{7-4} = op7_4;
1944 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1946 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1947 (ins rGPR:$Rn, rGPR:$Rm),
1948 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []> {
1949 let Inst{15-12} = 0b1111;
1951 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1952 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1953 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>;
1955 // Signed/Unsigned saturate -- for disassembly only
1957 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1958 string opc, string asm, list<dag> pattern>
1959 : T2I<oops, iops, itin, opc, asm, pattern> {
1965 let Inst{11-8} = Rd;
1966 let Inst{19-16} = Rn;
1967 let Inst{4-0} = sat_imm{4-0};
1968 let Inst{21} = sh{6};
1969 let Inst{14-12} = sh{4-2};
1970 let Inst{7-6} = sh{1-0};
1974 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1975 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1976 [/* For disassembly only; pattern left blank */]> {
1977 let Inst{31-27} = 0b11110;
1978 let Inst{25-22} = 0b1100;
1983 def t2SSAT16: T2SatI<
1984 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
1985 "ssat16", "\t$Rd, $sat_imm, $Rn",
1986 [/* For disassembly only; pattern left blank */]> {
1987 let Inst{31-27} = 0b11110;
1988 let Inst{25-22} = 0b1100;
1991 let Inst{21} = 1; // sh = '1'
1992 let Inst{14-12} = 0b000; // imm3 = '000'
1993 let Inst{7-6} = 0b00; // imm2 = '00'
1997 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1998 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
1999 [/* For disassembly only; pattern left blank */]> {
2000 let Inst{31-27} = 0b11110;
2001 let Inst{25-22} = 0b1110;
2006 def t2USAT16: T2SatI<
2007 (outs rGPR:$dst), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
2008 "usat16", "\t$dst, $sat_imm, $Rn",
2009 [/* For disassembly only; pattern left blank */]> {
2010 let Inst{31-27} = 0b11110;
2011 let Inst{25-22} = 0b1110;
2014 let Inst{21} = 1; // sh = '1'
2015 let Inst{14-12} = 0b000; // imm3 = '000'
2016 let Inst{7-6} = 0b00; // imm2 = '00'
2019 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2020 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2022 //===----------------------------------------------------------------------===//
2023 // Shift and rotate Instructions.
2026 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2027 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2028 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2029 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2031 let Uses = [CPSR] in {
2032 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2033 "rrx", "\t$Rd, $Rm",
2034 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2035 let Inst{31-27} = 0b11101;
2036 let Inst{26-25} = 0b01;
2037 let Inst{24-21} = 0b0010;
2038 let Inst{19-16} = 0b1111; // Rn
2039 let Inst{14-12} = 0b000;
2040 let Inst{7-4} = 0b0011;
2044 let Defs = [CPSR] in {
2045 def t2MOVsrl_flag : T2TwoRegShiftImm<
2046 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2047 "lsrs", ".w\t$Rd, $Rm, #1",
2048 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2049 let Inst{31-27} = 0b11101;
2050 let Inst{26-25} = 0b01;
2051 let Inst{24-21} = 0b0010;
2052 let Inst{20} = 1; // The S bit.
2053 let Inst{19-16} = 0b1111; // Rn
2054 let Inst{5-4} = 0b01; // Shift type.
2055 // Shift amount = Inst{14-12:7-6} = 1.
2056 let Inst{14-12} = 0b000;
2057 let Inst{7-6} = 0b01;
2059 def t2MOVsra_flag : T2TwoRegShiftImm<
2060 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2061 "asrs", ".w\t$Rd, $Rm, #1",
2062 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2063 let Inst{31-27} = 0b11101;
2064 let Inst{26-25} = 0b01;
2065 let Inst{24-21} = 0b0010;
2066 let Inst{20} = 1; // The S bit.
2067 let Inst{19-16} = 0b1111; // Rn
2068 let Inst{5-4} = 0b10; // Shift type.
2069 // Shift amount = Inst{14-12:7-6} = 1.
2070 let Inst{14-12} = 0b000;
2071 let Inst{7-6} = 0b01;
2075 //===----------------------------------------------------------------------===//
2076 // Bitwise Instructions.
2079 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2080 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2081 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2082 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2083 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2084 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2085 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2086 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2087 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2089 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2090 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2091 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2093 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2094 string opc, string asm, list<dag> pattern>
2095 : T2I<oops, iops, itin, opc, asm, pattern> {
2100 let Inst{11-8} = Rd;
2101 let Inst{4-0} = msb{4-0};
2102 let Inst{14-12} = lsb{4-2};
2103 let Inst{7-6} = lsb{1-0};
2106 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2107 string opc, string asm, list<dag> pattern>
2108 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2111 let Inst{19-16} = Rn;
2114 let Constraints = "$src = $Rd" in
2115 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2116 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2117 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2118 let Inst{31-27} = 0b11110;
2120 let Inst{24-20} = 0b10110;
2121 let Inst{19-16} = 0b1111; // Rn
2125 let msb{4-0} = imm{9-5};
2126 let lsb{4-0} = imm{4-0};
2129 def t2SBFX: T2TwoRegBitFI<
2130 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2131 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2132 let Inst{31-27} = 0b11110;
2134 let Inst{24-20} = 0b10100;
2138 def t2UBFX: T2TwoRegBitFI<
2139 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2140 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2141 let Inst{31-27} = 0b11110;
2143 let Inst{24-20} = 0b11100;
2147 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2148 let Constraints = "$src = $Rd" in
2149 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2150 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2151 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2152 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2153 bf_inv_mask_imm:$imm))]> {
2154 let Inst{31-27} = 0b11110;
2156 let Inst{24-20} = 0b10110;
2160 let msb{4-0} = imm{9-5};
2161 let lsb{4-0} = imm{4-0};
2164 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2165 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2166 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2168 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2169 let AddedComplexity = 1 in
2170 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2171 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2172 UnOpFrag<(not node:$Src)>, 1, 1>;
2175 let AddedComplexity = 1 in
2176 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2177 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2179 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2180 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2181 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2182 Requires<[IsThumb2]>;
2184 def : T2Pat<(t2_so_imm_not:$src),
2185 (t2MVNi t2_so_imm_not:$src)>;
2187 //===----------------------------------------------------------------------===//
2188 // Multiply Instructions.
2190 let isCommutable = 1 in
2191 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2192 "mul", "\t$Rd, $Rn, $Rm",
2193 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2194 let Inst{31-27} = 0b11111;
2195 let Inst{26-23} = 0b0110;
2196 let Inst{22-20} = 0b000;
2197 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2198 let Inst{7-4} = 0b0000; // Multiply
2201 def t2MLA: T2FourReg<
2202 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2203 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2204 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2205 let Inst{31-27} = 0b11111;
2206 let Inst{26-23} = 0b0110;
2207 let Inst{22-20} = 0b000;
2208 let Inst{7-4} = 0b0000; // Multiply
2211 def t2MLS: T2FourReg<
2212 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2213 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2214 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2215 let Inst{31-27} = 0b11111;
2216 let Inst{26-23} = 0b0110;
2217 let Inst{22-20} = 0b000;
2218 let Inst{7-4} = 0b0001; // Multiply and Subtract
2221 // Extra precision multiplies with low / high results
2222 let neverHasSideEffects = 1 in {
2223 let isCommutable = 1 in {
2224 def t2SMULL : T2MulLong<0b000, 0b0000,
2225 (outs rGPR:$Rd, rGPR:$Ra),
2226 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2227 "smull", "\t$Rd, $Ra, $Rn, $Rm", []>;
2229 def t2UMULL : T2MulLong<0b010, 0b0000,
2230 (outs rGPR:$RdLo, rGPR:$RdHi),
2231 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2232 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2235 // Multiply + accumulate
2236 def t2SMLAL : T2MulLong<0b100, 0b0000,
2237 (outs rGPR:$RdLo, rGPR:$RdHi),
2238 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2239 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2241 def t2UMLAL : T2MulLong<0b110, 0b0000,
2242 (outs rGPR:$RdLo, rGPR:$RdHi),
2243 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2244 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2246 def t2UMAAL : T2MulLong<0b110, 0b0110,
2247 (outs rGPR:$RdLo, rGPR:$RdHi),
2248 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2249 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2250 } // neverHasSideEffects
2252 // Rounding variants of the below included for disassembly only
2254 // Most significant word multiply
2255 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2256 "smmul", "\t$Rd, $Rn, $Rm",
2257 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]> {
2258 let Inst{31-27} = 0b11111;
2259 let Inst{26-23} = 0b0110;
2260 let Inst{22-20} = 0b101;
2261 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2262 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2265 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2266 "smmulr", "\t$Rd, $Rn, $Rm", []> {
2267 let Inst{31-27} = 0b11111;
2268 let Inst{26-23} = 0b0110;
2269 let Inst{22-20} = 0b101;
2270 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2271 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2274 def t2SMMLA : T2FourReg<
2275 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2276 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2277 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]> {
2278 let Inst{31-27} = 0b11111;
2279 let Inst{26-23} = 0b0110;
2280 let Inst{22-20} = 0b101;
2281 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2284 def t2SMMLAR: T2FourReg<
2285 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2286 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []> {
2287 let Inst{31-27} = 0b11111;
2288 let Inst{26-23} = 0b0110;
2289 let Inst{22-20} = 0b101;
2290 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2293 def t2SMMLS: T2FourReg<
2294 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2295 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2296 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]> {
2297 let Inst{31-27} = 0b11111;
2298 let Inst{26-23} = 0b0110;
2299 let Inst{22-20} = 0b110;
2300 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2303 def t2SMMLSR:T2FourReg<
2304 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2305 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []> {
2306 let Inst{31-27} = 0b11111;
2307 let Inst{26-23} = 0b0110;
2308 let Inst{22-20} = 0b110;
2309 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2312 multiclass T2I_smul<string opc, PatFrag opnode> {
2313 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2314 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2315 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2316 (sext_inreg rGPR:$Rm, i16)))]> {
2317 let Inst{31-27} = 0b11111;
2318 let Inst{26-23} = 0b0110;
2319 let Inst{22-20} = 0b001;
2320 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2321 let Inst{7-6} = 0b00;
2322 let Inst{5-4} = 0b00;
2325 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2326 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2327 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2328 (sra rGPR:$Rm, (i32 16))))]> {
2329 let Inst{31-27} = 0b11111;
2330 let Inst{26-23} = 0b0110;
2331 let Inst{22-20} = 0b001;
2332 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2333 let Inst{7-6} = 0b00;
2334 let Inst{5-4} = 0b01;
2337 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2338 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2339 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2340 (sext_inreg rGPR:$Rm, i16)))]> {
2341 let Inst{31-27} = 0b11111;
2342 let Inst{26-23} = 0b0110;
2343 let Inst{22-20} = 0b001;
2344 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2345 let Inst{7-6} = 0b00;
2346 let Inst{5-4} = 0b10;
2349 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2350 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2351 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2352 (sra rGPR:$Rm, (i32 16))))]> {
2353 let Inst{31-27} = 0b11111;
2354 let Inst{26-23} = 0b0110;
2355 let Inst{22-20} = 0b001;
2356 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2357 let Inst{7-6} = 0b00;
2358 let Inst{5-4} = 0b11;
2361 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2362 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2363 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2364 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]> {
2365 let Inst{31-27} = 0b11111;
2366 let Inst{26-23} = 0b0110;
2367 let Inst{22-20} = 0b011;
2368 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2369 let Inst{7-6} = 0b00;
2370 let Inst{5-4} = 0b00;
2373 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2374 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2375 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2376 (sra rGPR:$Rm, (i32 16))), (i32 16)))]> {
2377 let Inst{31-27} = 0b11111;
2378 let Inst{26-23} = 0b0110;
2379 let Inst{22-20} = 0b011;
2380 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2381 let Inst{7-6} = 0b00;
2382 let Inst{5-4} = 0b01;
2387 multiclass T2I_smla<string opc, PatFrag opnode> {
2389 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2390 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2391 [(set rGPR:$Rd, (add rGPR:$Ra,
2392 (opnode (sext_inreg rGPR:$Rn, i16),
2393 (sext_inreg rGPR:$Rm, i16))))]> {
2394 let Inst{31-27} = 0b11111;
2395 let Inst{26-23} = 0b0110;
2396 let Inst{22-20} = 0b001;
2397 let Inst{7-6} = 0b00;
2398 let Inst{5-4} = 0b00;
2402 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2403 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2404 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2405 (sra rGPR:$Rm, (i32 16)))))]> {
2406 let Inst{31-27} = 0b11111;
2407 let Inst{26-23} = 0b0110;
2408 let Inst{22-20} = 0b001;
2409 let Inst{7-6} = 0b00;
2410 let Inst{5-4} = 0b01;
2414 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2415 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2416 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2417 (sext_inreg rGPR:$Rm, i16))))]> {
2418 let Inst{31-27} = 0b11111;
2419 let Inst{26-23} = 0b0110;
2420 let Inst{22-20} = 0b001;
2421 let Inst{7-6} = 0b00;
2422 let Inst{5-4} = 0b10;
2426 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2427 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2428 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2429 (sra rGPR:$Rm, (i32 16)))))]> {
2430 let Inst{31-27} = 0b11111;
2431 let Inst{26-23} = 0b0110;
2432 let Inst{22-20} = 0b001;
2433 let Inst{7-6} = 0b00;
2434 let Inst{5-4} = 0b11;
2438 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2439 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2440 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2441 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]> {
2442 let Inst{31-27} = 0b11111;
2443 let Inst{26-23} = 0b0110;
2444 let Inst{22-20} = 0b011;
2445 let Inst{7-6} = 0b00;
2446 let Inst{5-4} = 0b00;
2450 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2451 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2452 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2453 (sra rGPR:$Rm, (i32 16))), (i32 16))))]> {
2454 let Inst{31-27} = 0b11111;
2455 let Inst{26-23} = 0b0110;
2456 let Inst{22-20} = 0b011;
2457 let Inst{7-6} = 0b00;
2458 let Inst{5-4} = 0b01;
2462 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2463 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2465 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2466 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2467 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2468 [/* For disassembly only; pattern left blank */]>;
2469 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2470 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2471 [/* For disassembly only; pattern left blank */]>;
2472 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2473 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2474 [/* For disassembly only; pattern left blank */]>;
2475 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2476 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2477 [/* For disassembly only; pattern left blank */]>;
2479 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2480 // These are for disassembly only.
2482 def t2SMUAD: T2ThreeReg_mac<
2483 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2484 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []> {
2485 let Inst{15-12} = 0b1111;
2487 def t2SMUADX:T2ThreeReg_mac<
2488 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2489 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []> {
2490 let Inst{15-12} = 0b1111;
2492 def t2SMUSD: T2ThreeReg_mac<
2493 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2494 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []> {
2495 let Inst{15-12} = 0b1111;
2497 def t2SMUSDX:T2ThreeReg_mac<
2498 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2499 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []> {
2500 let Inst{15-12} = 0b1111;
2502 def t2SMLAD : T2ThreeReg_mac<
2503 0, 0b010, 0b0000, (outs rGPR:$Rd),
2504 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2505 "\t$Rd, $Rn, $Rm, $Ra", []>;
2506 def t2SMLADX : T2FourReg_mac<
2507 0, 0b010, 0b0001, (outs rGPR:$Rd),
2508 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2509 "\t$Rd, $Rn, $Rm, $Ra", []>;
2510 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2511 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2512 "\t$Rd, $Rn, $Rm, $Ra", []>;
2513 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2514 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2515 "\t$Rd, $Rn, $Rm, $Ra", []>;
2516 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2517 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2518 "\t$Ra, $Rd, $Rm, $Rn", []>;
2519 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2520 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2521 "\t$Ra, $Rd, $Rm, $Rn", []>;
2522 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2523 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2524 "\t$Ra, $Rd, $Rm, $Rn", []>;
2525 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2526 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2527 "\t$Ra, $Rd, $Rm, $Rn", []>;
2529 //===----------------------------------------------------------------------===//
2530 // Misc. Arithmetic Instructions.
2533 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2534 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2535 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2536 let Inst{31-27} = 0b11111;
2537 let Inst{26-22} = 0b01010;
2538 let Inst{21-20} = op1;
2539 let Inst{15-12} = 0b1111;
2540 let Inst{7-6} = 0b10;
2541 let Inst{5-4} = op2;
2545 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2546 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2548 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2549 "rbit", "\t$Rd, $Rm",
2550 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2552 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2553 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2555 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2556 "rev16", ".w\t$Rd, $Rm",
2558 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF),
2559 (or (and (shl rGPR:$Rm, (i32 8)), 0xFF00),
2560 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF0000),
2561 (and (shl rGPR:$Rm, (i32 8)), 0xFF000000)))))]>;
2563 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2564 "revsh", ".w\t$Rd, $Rm",
2567 (or (srl (and rGPR:$Rm, 0xFF00), (i32 8)),
2568 (shl rGPR:$Rm, (i32 8))), i16))]>;
2570 def t2PKHBT : T2ThreeReg<
2571 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2572 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2573 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2574 (and (shl rGPR:$Rm, lsl_amt:$sh),
2576 Requires<[HasT2ExtractPack, IsThumb2]> {
2577 let Inst{31-27} = 0b11101;
2578 let Inst{26-25} = 0b01;
2579 let Inst{24-20} = 0b01100;
2580 let Inst{5} = 0; // BT form
2584 let Inst{14-12} = sh{7-5};
2585 let Inst{7-6} = sh{4-3};
2588 // Alternate cases for PKHBT where identities eliminate some nodes.
2589 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2590 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2591 Requires<[HasT2ExtractPack, IsThumb2]>;
2592 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2593 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2594 Requires<[HasT2ExtractPack, IsThumb2]>;
2596 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2597 // will match the pattern below.
2598 def t2PKHTB : T2ThreeReg<
2599 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2600 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2601 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2602 (and (sra rGPR:$Rm, asr_amt:$sh),
2604 Requires<[HasT2ExtractPack, IsThumb2]> {
2605 let Inst{31-27} = 0b11101;
2606 let Inst{26-25} = 0b01;
2607 let Inst{24-20} = 0b01100;
2608 let Inst{5} = 1; // TB form
2612 let Inst{14-12} = sh{7-5};
2613 let Inst{7-6} = sh{4-3};
2616 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2617 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2618 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2619 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2620 Requires<[HasT2ExtractPack, IsThumb2]>;
2621 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2622 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2623 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2624 Requires<[HasT2ExtractPack, IsThumb2]>;
2626 //===----------------------------------------------------------------------===//
2627 // Comparison Instructions...
2629 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2630 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2631 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2633 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_imm:$imm),
2634 (t2CMPri GPR:$lhs, t2_so_imm:$imm)>;
2635 def : T2Pat<(ARMcmpZ GPR:$lhs, rGPR:$rhs),
2636 (t2CMPrr GPR:$lhs, rGPR:$rhs)>;
2637 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_reg:$rhs),
2638 (t2CMPrs GPR:$lhs, t2_so_reg:$rhs)>;
2640 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2641 // Compare-to-zero still works out, just not the relationals
2642 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2643 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2644 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2645 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2646 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2648 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2649 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2651 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2652 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2654 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2655 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2656 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2657 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2658 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2659 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2661 // Conditional moves
2662 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2663 // a two-value operand where a dag node expects two operands. :(
2664 let neverHasSideEffects = 1 in {
2665 def t2MOVCCr : T2TwoReg<
2666 (outs rGPR:$Rd), (ins rGPR:$false, rGPR:$Rm), IIC_iCMOVr,
2667 "mov", ".w\t$Rd, $Rm",
2668 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2669 RegConstraint<"$false = $Rd"> {
2670 let Inst{31-27} = 0b11101;
2671 let Inst{26-25} = 0b01;
2672 let Inst{24-21} = 0b0010;
2673 let Inst{20} = 0; // The S bit.
2674 let Inst{19-16} = 0b1111; // Rn
2675 let Inst{14-12} = 0b000;
2676 let Inst{7-4} = 0b0000;
2679 let isMoveImm = 1 in
2680 def t2MOVCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2681 IIC_iCMOVi, "mov", ".w\t$Rd, $imm",
2682 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2683 RegConstraint<"$false = $Rd"> {
2684 let Inst{31-27} = 0b11110;
2686 let Inst{24-21} = 0b0010;
2687 let Inst{20} = 0; // The S bit.
2688 let Inst{19-16} = 0b1111; // Rn
2692 let isMoveImm = 1 in
2693 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, i32imm:$imm),
2695 "movw", "\t$Rd, $imm", []>,
2696 RegConstraint<"$false = $Rd"> {
2697 let Inst{31-27} = 0b11110;
2699 let Inst{24-21} = 0b0010;
2700 let Inst{20} = 0; // The S bit.
2706 let Inst{11-8} = Rd;
2707 let Inst{19-16} = imm{15-12};
2708 let Inst{26} = imm{11};
2709 let Inst{14-12} = imm{10-8};
2710 let Inst{7-0} = imm{7-0};
2713 let isMoveImm = 1 in
2714 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2715 (ins rGPR:$false, i32imm:$src, pred:$p),
2716 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2718 let isMoveImm = 1 in
2719 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2720 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2721 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2722 imm:$cc, CCR:$ccr))*/]>,
2723 RegConstraint<"$false = $Rd"> {
2724 let Inst{31-27} = 0b11110;
2726 let Inst{24-21} = 0b0011;
2727 let Inst{20} = 0; // The S bit.
2728 let Inst{19-16} = 0b1111; // Rn
2732 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2733 string opc, string asm, list<dag> pattern>
2734 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2735 let Inst{31-27} = 0b11101;
2736 let Inst{26-25} = 0b01;
2737 let Inst{24-21} = 0b0010;
2738 let Inst{20} = 0; // The S bit.
2739 let Inst{19-16} = 0b1111; // Rn
2740 let Inst{5-4} = opcod; // Shift type.
2742 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2743 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2744 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2745 RegConstraint<"$false = $Rd">;
2746 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2747 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2748 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2749 RegConstraint<"$false = $Rd">;
2750 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2751 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2752 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2753 RegConstraint<"$false = $Rd">;
2754 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2755 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2756 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2757 RegConstraint<"$false = $Rd">;
2758 } // neverHasSideEffects
2760 //===----------------------------------------------------------------------===//
2761 // Atomic operations intrinsics
2764 // memory barriers protect the atomic sequences
2765 let hasSideEffects = 1 in {
2766 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2767 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2768 Requires<[IsThumb, HasDB]> {
2770 let Inst{31-4} = 0xf3bf8f5;
2771 let Inst{3-0} = opt;
2775 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2777 [/* For disassembly only; pattern left blank */]>,
2778 Requires<[IsThumb, HasDB]> {
2780 let Inst{31-4} = 0xf3bf8f4;
2781 let Inst{3-0} = opt;
2784 // ISB has only full system option -- for disassembly only
2785 def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
2786 [/* For disassembly only; pattern left blank */]>,
2787 Requires<[IsThumb2, HasV7]> {
2788 let Inst{31-4} = 0xf3bf8f6;
2789 let Inst{3-0} = 0b1111;
2792 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2793 InstrItinClass itin, string opc, string asm, string cstr,
2794 list<dag> pattern, bits<4> rt2 = 0b1111>
2795 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2796 let Inst{31-27} = 0b11101;
2797 let Inst{26-20} = 0b0001101;
2798 let Inst{11-8} = rt2;
2799 let Inst{7-6} = 0b01;
2800 let Inst{5-4} = opcod;
2801 let Inst{3-0} = 0b1111;
2805 let Inst{19-16} = Rn;
2806 let Inst{15-12} = Rt;
2808 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2809 InstrItinClass itin, string opc, string asm, string cstr,
2810 list<dag> pattern, bits<4> rt2 = 0b1111>
2811 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2812 let Inst{31-27} = 0b11101;
2813 let Inst{26-20} = 0b0001100;
2814 let Inst{11-8} = rt2;
2815 let Inst{7-6} = 0b01;
2816 let Inst{5-4} = opcod;
2821 let Inst{11-8} = Rd;
2822 let Inst{19-16} = Rn;
2823 let Inst{15-12} = Rt;
2826 let mayLoad = 1 in {
2827 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2828 Size4Bytes, NoItinerary, "ldrexb", "\t$Rt, [$Rn]",
2830 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2831 Size4Bytes, NoItinerary, "ldrexh", "\t$Rt, [$Rn]",
2833 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2834 Size4Bytes, NoItinerary,
2835 "ldrex", "\t$Rt, [$Rn]", "",
2837 let Inst{31-27} = 0b11101;
2838 let Inst{26-20} = 0b0000101;
2839 let Inst{11-8} = 0b1111;
2840 let Inst{7-0} = 0b00000000; // imm8 = 0
2842 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2), (ins rGPR:$Rn),
2843 AddrModeNone, Size4Bytes, NoItinerary,
2844 "ldrexd", "\t$Rt, $Rt2, [$Rn]", "",
2847 let Inst{11-8} = Rt2;
2851 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2852 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2853 AddrModeNone, Size4Bytes, NoItinerary,
2854 "strexb", "\t$Rd, $Rt, [$Rn]", "", []>;
2855 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2856 AddrModeNone, Size4Bytes, NoItinerary,
2857 "strexh", "\t$Rd, $Rt, [$Rn]", "", []>;
2858 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2859 AddrModeNone, Size4Bytes, NoItinerary,
2860 "strex", "\t$Rd, $Rt, [$Rn]", "",
2862 let Inst{31-27} = 0b11101;
2863 let Inst{26-20} = 0b0000100;
2864 let Inst{7-0} = 0b00000000; // imm8 = 0
2866 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2867 (ins rGPR:$Rt, rGPR:$Rt2, rGPR:$Rn),
2868 AddrModeNone, Size4Bytes, NoItinerary,
2869 "strexd", "\t$Rd, $Rt, $Rt2, [$Rn]", "", [],
2872 let Inst{11-8} = Rt2;
2876 // Clear-Exclusive is for disassembly only.
2877 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2878 [/* For disassembly only; pattern left blank */]>,
2879 Requires<[IsARM, HasV7]> {
2880 let Inst{31-20} = 0xf3b;
2881 let Inst{15-14} = 0b10;
2883 let Inst{7-4} = 0b0010;
2886 //===----------------------------------------------------------------------===//
2890 // __aeabi_read_tp preserves the registers r1-r3.
2892 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
2893 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2894 "bl\t__aeabi_read_tp",
2895 [(set R0, ARMthread_pointer)]> {
2896 let Inst{31-27} = 0b11110;
2897 let Inst{15-14} = 0b11;
2902 //===----------------------------------------------------------------------===//
2903 // SJLJ Exception handling intrinsics
2904 // eh_sjlj_setjmp() is an instruction sequence to store the return
2905 // address and save #0 in R0 for the non-longjmp case.
2906 // Since by its nature we may be coming from some other function to get
2907 // here, and we're using the stack frame for the containing function to
2908 // save/restore registers, we can't keep anything live in regs across
2909 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2910 // when we get here from a longjmp(). We force everthing out of registers
2911 // except for our own input by listing the relevant registers in Defs. By
2912 // doing so, we also cause the prologue/epilogue code to actively preserve
2913 // all of the callee-saved resgisters, which is exactly what we want.
2914 // $val is a scratch register for our use.
2916 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2917 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2918 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2919 D31 ], hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2920 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2921 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2922 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2923 Requires<[IsThumb2, HasVFP2]>;
2927 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2928 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2929 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2930 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2931 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2932 Requires<[IsThumb2, NoVFP]>;
2936 //===----------------------------------------------------------------------===//
2937 // Control-Flow Instructions
2940 // FIXME: remove when we have a way to marking a MI with these properties.
2941 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2943 // FIXME: Should pc be an implicit operand like PICADD, etc?
2944 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2945 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2946 def t2LDMIA_RET: T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2947 reglist:$regs, variable_ops),
2949 "ldmia${p}.w\t$Rn!, $regs",
2954 let Inst{31-27} = 0b11101;
2955 let Inst{26-25} = 0b00;
2956 let Inst{24-23} = 0b01; // Increment After
2958 let Inst{21} = 1; // Writeback
2960 let Inst{19-16} = Rn;
2961 let Inst{15-0} = regs;
2964 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2965 let isPredicable = 1 in
2966 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2968 [(br bb:$target)]> {
2969 let Inst{31-27} = 0b11110;
2970 let Inst{15-14} = 0b10;
2974 let Inst{26} = target{19};
2975 let Inst{11} = target{18};
2976 let Inst{13} = target{17};
2977 let Inst{21-16} = target{16-11};
2978 let Inst{10-0} = target{10-0};
2981 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2982 def t2BR_JT : tPseudoInst<(outs),
2983 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
2984 SizeSpecial, IIC_Br,
2985 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
2987 // FIXME: Add a non-pc based case that can be predicated.
2988 def t2TBB_JT : tPseudoInst<(outs),
2989 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2990 SizeSpecial, IIC_Br, []>;
2992 def t2TBH_JT : tPseudoInst<(outs),
2993 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2994 SizeSpecial, IIC_Br, []>;
2996 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
2997 "tbb", "\t[$Rn, $Rm]", []> {
3000 let Inst{27-20} = 0b10001101;
3001 let Inst{19-16} = Rn;
3002 let Inst{15-5} = 0b11110000000;
3003 let Inst{4} = 0; // B form
3007 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3008 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3011 let Inst{27-20} = 0b10001101;
3012 let Inst{19-16} = Rn;
3013 let Inst{15-5} = 0b11110000000;
3014 let Inst{4} = 1; // H form
3017 } // isNotDuplicable, isIndirectBranch
3019 } // isBranch, isTerminator, isBarrier
3021 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3022 // a two-value operand where a dag node expects two operands. :(
3023 let isBranch = 1, isTerminator = 1 in
3024 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3026 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3027 let Inst{31-27} = 0b11110;
3028 let Inst{15-14} = 0b10;
3032 let Inst{26} = target{19};
3033 let Inst{11} = target{18};
3034 let Inst{13} = target{17};
3035 let Inst{21-16} = target{16-11};
3036 let Inst{10-0} = target{10-0};
3041 let Defs = [ITSTATE] in
3042 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3043 AddrModeNone, Size2Bytes, IIC_iALUx,
3044 "it$mask\t$cc", "", []> {
3045 // 16-bit instruction.
3046 let Inst{31-16} = 0x0000;
3047 let Inst{15-8} = 0b10111111;
3052 let Inst{3-0} = mask;
3055 // Branch and Exchange Jazelle -- for disassembly only
3057 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3058 [/* For disassembly only; pattern left blank */]> {
3059 let Inst{31-27} = 0b11110;
3061 let Inst{25-20} = 0b111100;
3062 let Inst{15-14} = 0b10;
3066 let Inst{19-16} = func;
3069 // Change Processor State is a system instruction -- for disassembly only.
3070 // The singleton $opt operand contains the following information:
3071 // opt{4-0} = mode from Inst{4-0}
3072 // opt{5} = changemode from Inst{17}
3073 // opt{8-6} = AIF from Inst{8-6}
3074 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
3075 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
3076 [/* For disassembly only; pattern left blank */]> {
3077 let Inst{31-27} = 0b11110;
3079 let Inst{25-20} = 0b111010;
3080 let Inst{15-14} = 0b10;
3086 let Inst{4-0} = opt{4-0};
3089 let Inst{8} = opt{5};
3092 let Inst{5} = opt{6};
3095 let Inst{6} = opt{7};
3098 let Inst{7} = opt{8};
3101 let Inst{10-9} = opt{10-9};
3104 // A6.3.4 Branches and miscellaneous control
3105 // Table A6-14 Change Processor State, and hint instructions
3106 // Helper class for disassembly only.
3107 class T2I_hint<bits<8> op7_0, string opc, string asm>
3108 : T2I<(outs), (ins), NoItinerary, opc, asm,
3109 [/* For disassembly only; pattern left blank */]> {
3110 let Inst{31-20} = 0xf3a;
3111 let Inst{15-14} = 0b10;
3113 let Inst{10-8} = 0b000;
3114 let Inst{7-0} = op7_0;
3117 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3118 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3119 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3120 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3121 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3123 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
3124 [/* For disassembly only; pattern left blank */]> {
3125 let Inst{31-20} = 0xf3a;
3126 let Inst{15-14} = 0b10;
3128 let Inst{10-8} = 0b000;
3129 let Inst{7-4} = 0b1111;
3132 let Inst{3-0} = opt;
3135 // Secure Monitor Call is a system instruction -- for disassembly only
3136 // Option = Inst{19-16}
3137 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
3138 [/* For disassembly only; pattern left blank */]> {
3139 let Inst{31-27} = 0b11110;
3140 let Inst{26-20} = 0b1111111;
3141 let Inst{15-12} = 0b1000;
3144 let Inst{19-16} = opt;
3147 class T2SRS<bits<12> op31_20,
3148 dag oops, dag iops, InstrItinClass itin,
3149 string opc, string asm, list<dag> pattern>
3150 : T2I<oops, iops, itin, opc, asm, pattern> {
3151 let Inst{31-20} = op31_20{11-0};
3154 let Inst{4-0} = mode{4-0};
3157 // Store Return State is a system instruction -- for disassembly only
3158 def t2SRSDBW : T2SRS<0b111010000010,
3159 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3160 [/* For disassembly only; pattern left blank */]>;
3161 def t2SRSDB : T2SRS<0b111010000000,
3162 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3163 [/* For disassembly only; pattern left blank */]>;
3164 def t2SRSIAW : T2SRS<0b111010011010,
3165 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3166 [/* For disassembly only; pattern left blank */]>;
3167 def t2SRSIA : T2SRS<0b111010011000,
3168 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3169 [/* For disassembly only; pattern left blank */]>;
3171 // Return From Exception is a system instruction -- for disassembly only
3173 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3174 string opc, string asm, list<dag> pattern>
3175 : T2I<oops, iops, itin, opc, asm, pattern> {
3176 let Inst{31-20} = op31_20{11-0};
3179 let Inst{19-16} = Rn;
3182 def t2RFEDBW : T2RFE<0b111010000011,
3183 (outs), (ins rGPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3184 [/* For disassembly only; pattern left blank */]>;
3185 def t2RFEDB : T2RFE<0b111010000001,
3186 (outs), (ins rGPR:$Rn), NoItinerary, "rfeab", "\t$Rn",
3187 [/* For disassembly only; pattern left blank */]>;
3188 def t2RFEIAW : T2RFE<0b111010011011,
3189 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3190 [/* For disassembly only; pattern left blank */]>;
3191 def t2RFEIA : T2RFE<0b111010011001,
3192 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3193 [/* For disassembly only; pattern left blank */]>;
3195 //===----------------------------------------------------------------------===//
3196 // Non-Instruction Patterns
3199 // 32-bit immediate using movw + movt.
3200 // This is a single pseudo instruction to make it re-materializable.
3201 // FIXME: Remove this when we can do generalized remat.
3202 let isReMaterializable = 1, isMoveImm = 1 in
3203 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3204 [(set rGPR:$dst, (i32 imm:$src))]>,
3205 Requires<[IsThumb, HasV6T2]>;
3207 // ConstantPool, GlobalAddress, and JumpTable
3208 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3209 Requires<[IsThumb2, DontUseMovt]>;
3210 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3211 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3212 Requires<[IsThumb2, UseMovt]>;
3214 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3215 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3217 // Pseudo instruction that combines ldr from constpool and add pc. This should
3218 // be expanded into two instructions late to allow if-conversion and
3220 let canFoldAsLoad = 1, isReMaterializable = 1 in
3221 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3223 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3225 Requires<[IsThumb2]>;
3227 //===----------------------------------------------------------------------===//
3228 // Move between special register and ARM core register -- for disassembly only
3231 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3232 dag oops, dag iops, InstrItinClass itin,
3233 string opc, string asm, list<dag> pattern>
3234 : T2I<oops, iops, itin, opc, asm, pattern> {
3235 let Inst{31-20} = op31_20{11-0};
3236 let Inst{15-14} = op15_14{1-0};
3237 let Inst{12} = op12{0};
3240 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3241 dag oops, dag iops, InstrItinClass itin,
3242 string opc, string asm, list<dag> pattern>
3243 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3245 let Inst{11-8} = Rd;
3248 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3249 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3250 [/* For disassembly only; pattern left blank */]>;
3251 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3252 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3253 [/* For disassembly only; pattern left blank */]>;
3255 class T2MSR<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3256 dag oops, dag iops, InstrItinClass itin,
3257 string opc, string asm, list<dag> pattern>
3258 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3261 let Inst{19-16} = Rn;
3262 let Inst{11-8} = mask;
3265 def t2MSR : T2MSR<0b111100111000, 0b10, 0,
3266 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3268 [/* For disassembly only; pattern left blank */]>;
3269 def t2MSRsys : T2MSR<0b111100111001, 0b10, 0,
3270 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3272 [/* For disassembly only; pattern left blank */]>;