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> {
291 let Inst{19-16} = Rn;
292 let Inst{26} = imm{11};
293 let Inst{14-12} = imm{10-8};
294 let Inst{7-0} = imm{7-0};
297 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
298 string opc, string asm, list<dag> pattern>
299 : T2sI<oops, iops, itin, opc, asm, pattern> {
305 let Inst{19-16} = Rn;
306 let Inst{26} = imm{11};
307 let Inst{14-12} = imm{10-8};
308 let Inst{7-0} = imm{7-0};
311 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
312 string opc, string asm, list<dag> pattern>
313 : T2I<oops, iops, itin, opc, asm, pattern> {
320 let Inst{14-12} = imm{4-2};
321 let Inst{7-6} = imm{1-0};
324 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
325 string opc, string asm, list<dag> pattern>
326 : T2sI<oops, iops, itin, opc, asm, pattern> {
333 let Inst{14-12} = imm{4-2};
334 let Inst{7-6} = imm{1-0};
337 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
338 string opc, string asm, list<dag> pattern>
339 : T2I<oops, iops, itin, opc, asm, pattern> {
345 let Inst{19-16} = Rn;
349 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
350 string opc, string asm, list<dag> pattern>
351 : T2sI<oops, iops, itin, opc, asm, pattern> {
357 let Inst{19-16} = Rn;
361 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
362 string opc, string asm, list<dag> pattern>
363 : T2I<oops, iops, itin, opc, asm, pattern> {
369 let Inst{19-16} = Rn;
370 let Inst{3-0} = ShiftedRm{3-0};
371 let Inst{5-4} = ShiftedRm{6-5};
372 let Inst{14-12} = ShiftedRm{11-9};
373 let Inst{7-6} = ShiftedRm{8-7};
376 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
377 string opc, string asm, list<dag> pattern>
378 : T2sI<oops, iops, itin, opc, asm, pattern> {
384 let Inst{19-16} = Rn;
385 let Inst{3-0} = ShiftedRm{3-0};
386 let Inst{5-4} = ShiftedRm{6-5};
387 let Inst{14-12} = ShiftedRm{11-9};
388 let Inst{7-6} = ShiftedRm{8-7};
391 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
392 string opc, string asm, list<dag> pattern>
393 : T2I<oops, iops, itin, opc, asm, pattern> {
399 let Inst{19-16} = Rn;
400 let Inst{15-12} = Ra;
405 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
406 dag oops, dag iops, InstrItinClass itin,
407 string opc, string asm, list<dag> pattern>
408 : T2I<oops, iops, itin, opc, asm, pattern> {
414 let Inst{31-23} = 0b111110111;
415 let Inst{22-20} = opc22_20;
416 let Inst{19-16} = Rn;
417 let Inst{15-12} = RdLo;
418 let Inst{11-8} = RdHi;
419 let Inst{7-4} = opc7_4;
424 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
425 /// unary operation that produces a value. These are predicable and can be
426 /// changed to modify CPSR.
427 multiclass T2I_un_irs<bits<4> opcod, string opc,
428 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
429 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
431 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
433 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
434 let isAsCheapAsAMove = Cheap;
435 let isReMaterializable = ReMat;
436 let Inst{31-27} = 0b11110;
438 let Inst{24-21} = opcod;
439 let Inst{19-16} = 0b1111; // Rn
443 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
445 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
446 let Inst{31-27} = 0b11101;
447 let Inst{26-25} = 0b01;
448 let Inst{24-21} = opcod;
449 let Inst{19-16} = 0b1111; // Rn
450 let Inst{14-12} = 0b000; // imm3
451 let Inst{7-6} = 0b00; // imm2
452 let Inst{5-4} = 0b00; // type
455 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
456 opc, ".w\t$Rd, $ShiftedRm",
457 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
458 let Inst{31-27} = 0b11101;
459 let Inst{26-25} = 0b01;
460 let Inst{24-21} = opcod;
461 let Inst{19-16} = 0b1111; // Rn
465 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
466 /// binary operation that produces a value. These are predicable and can be
467 /// changed to modify CPSR.
468 multiclass T2I_bin_irs<bits<4> opcod, string opc,
469 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
470 PatFrag opnode, bit Commutable = 0, string wide = ""> {
472 def ri : T2sTwoRegImm<
473 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
474 opc, "\t$Rd, $Rn, $imm",
475 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
476 let Inst{31-27} = 0b11110;
478 let Inst{24-21} = opcod;
482 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
483 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
484 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
485 let isCommutable = Commutable;
486 let Inst{31-27} = 0b11101;
487 let Inst{26-25} = 0b01;
488 let Inst{24-21} = opcod;
489 let Inst{14-12} = 0b000; // imm3
490 let Inst{7-6} = 0b00; // imm2
491 let Inst{5-4} = 0b00; // type
494 def rs : T2sTwoRegShiftedReg<
495 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
496 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
497 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
498 let Inst{31-27} = 0b11101;
499 let Inst{26-25} = 0b01;
500 let Inst{24-21} = opcod;
504 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
505 // the ".w" prefix to indicate that they are wide.
506 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
507 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
508 PatFrag opnode, bit Commutable = 0> :
509 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w">;
511 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
512 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
513 /// it is equivalent to the T2I_bin_irs counterpart.
514 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
516 def ri : T2sTwoRegImm<
517 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
518 opc, ".w\t$Rd, $Rn, $imm",
519 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
520 let Inst{31-27} = 0b11110;
522 let Inst{24-21} = opcod;
526 def rr : T2sThreeReg<
527 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
528 opc, "\t$Rd, $Rn, $Rm",
529 [/* For disassembly only; pattern left blank */]> {
530 let Inst{31-27} = 0b11101;
531 let Inst{26-25} = 0b01;
532 let Inst{24-21} = opcod;
533 let Inst{14-12} = 0b000; // imm3
534 let Inst{7-6} = 0b00; // imm2
535 let Inst{5-4} = 0b00; // type
538 def rs : T2sTwoRegShiftedReg<
539 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
540 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
541 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
542 let Inst{31-27} = 0b11101;
543 let Inst{26-25} = 0b01;
544 let Inst{24-21} = opcod;
548 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
549 /// instruction modifies the CPSR register.
550 let Defs = [CPSR] in {
551 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
552 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
553 PatFrag opnode, bit Commutable = 0> {
555 def ri : T2TwoRegImm<
556 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
557 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
558 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
559 let Inst{31-27} = 0b11110;
561 let Inst{24-21} = opcod;
562 let Inst{20} = 1; // The S bit.
567 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
568 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $Rm",
569 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
570 let isCommutable = Commutable;
571 let Inst{31-27} = 0b11101;
572 let Inst{26-25} = 0b01;
573 let Inst{24-21} = opcod;
574 let Inst{20} = 1; // The S bit.
575 let Inst{14-12} = 0b000; // imm3
576 let Inst{7-6} = 0b00; // imm2
577 let Inst{5-4} = 0b00; // type
580 def rs : T2TwoRegShiftedReg<
581 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
582 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $ShiftedRm",
583 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
584 let Inst{31-27} = 0b11101;
585 let Inst{26-25} = 0b01;
586 let Inst{24-21} = opcod;
587 let Inst{20} = 1; // The S bit.
592 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
593 /// patterns for a binary operation that produces a value.
594 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
595 bit Commutable = 0> {
597 // The register-immediate version is re-materializable. This is useful
598 // in particular for taking the address of a local.
599 let isReMaterializable = 1 in {
600 def ri : T2sTwoRegImm<
601 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
602 opc, ".w\t$Rd, $Rn, $imm",
603 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
604 let Inst{31-27} = 0b11110;
607 let Inst{23-21} = op23_21;
613 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
614 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
615 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
619 let Inst{31-27} = 0b11110;
620 let Inst{26} = imm{11};
621 let Inst{25-24} = 0b10;
622 let Inst{23-21} = op23_21;
623 let Inst{20} = 0; // The S bit.
624 let Inst{19-16} = Rn;
626 let Inst{14-12} = imm{10-8};
628 let Inst{7-0} = imm{7-0};
631 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), IIC_iALUr,
632 opc, ".w\t$Rd, $Rn, $Rm",
633 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
634 let isCommutable = Commutable;
635 let Inst{31-27} = 0b11101;
636 let Inst{26-25} = 0b01;
638 let Inst{23-21} = op23_21;
639 let Inst{14-12} = 0b000; // imm3
640 let Inst{7-6} = 0b00; // imm2
641 let Inst{5-4} = 0b00; // type
644 def rs : T2sTwoRegShiftedReg<
645 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
646 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
647 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
648 let Inst{31-27} = 0b11101;
649 let Inst{26-25} = 0b01;
651 let Inst{23-21} = op23_21;
655 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
656 /// for a binary operation that produces a value and use the carry
657 /// bit. It's not predicable.
658 let Uses = [CPSR] in {
659 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
660 bit Commutable = 0> {
662 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
663 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
664 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
665 Requires<[IsThumb2]> {
666 let Inst{31-27} = 0b11110;
668 let Inst{24-21} = opcod;
672 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
673 opc, ".w\t$Rd, $Rn, $Rm",
674 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
675 Requires<[IsThumb2]> {
676 let isCommutable = Commutable;
677 let Inst{31-27} = 0b11101;
678 let Inst{26-25} = 0b01;
679 let Inst{24-21} = opcod;
680 let Inst{14-12} = 0b000; // imm3
681 let Inst{7-6} = 0b00; // imm2
682 let Inst{5-4} = 0b00; // type
685 def rs : T2sTwoRegShiftedReg<
686 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
687 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
688 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
689 Requires<[IsThumb2]> {
690 let Inst{31-27} = 0b11101;
691 let Inst{26-25} = 0b01;
692 let Inst{24-21} = opcod;
696 // Carry setting variants
697 let Defs = [CPSR] in {
698 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
699 bit Commutable = 0> {
701 def ri : T2sTwoRegImm<
702 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
703 opc, "\t$Rd, $Rn, $imm",
704 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
705 Requires<[IsThumb2]> {
706 let Inst{31-27} = 0b11110;
708 let Inst{24-21} = opcod;
709 let Inst{20} = 1; // The S bit.
713 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
714 opc, ".w\t$Rd, $Rn, $Rm",
715 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
716 Requires<[IsThumb2]> {
717 let isCommutable = Commutable;
718 let Inst{31-27} = 0b11101;
719 let Inst{26-25} = 0b01;
720 let Inst{24-21} = opcod;
721 let Inst{20} = 1; // The S bit.
722 let Inst{14-12} = 0b000; // imm3
723 let Inst{7-6} = 0b00; // imm2
724 let Inst{5-4} = 0b00; // type
727 def rs : T2sTwoRegShiftedReg<
728 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
729 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
730 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
731 Requires<[IsThumb2]> {
732 let Inst{31-27} = 0b11101;
733 let Inst{26-25} = 0b01;
734 let Inst{24-21} = opcod;
735 let Inst{20} = 1; // The S bit.
741 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
742 /// version is not needed since this is only for codegen.
743 let Defs = [CPSR] in {
744 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
746 def ri : T2TwoRegImm<
747 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
748 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
749 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
750 let Inst{31-27} = 0b11110;
752 let Inst{24-21} = opcod;
753 let Inst{20} = 1; // The S bit.
757 def rs : T2TwoRegShiftedReg<
758 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
759 IIC_iALUsi, !strconcat(opc, "s"), "\t$Rd, $Rn, $ShiftedRm",
760 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
761 let Inst{31-27} = 0b11101;
762 let Inst{26-25} = 0b01;
763 let Inst{24-21} = opcod;
764 let Inst{20} = 1; // The S bit.
769 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
770 // rotate operation that produces a value.
771 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
773 def ri : T2sTwoRegShiftImm<
774 (outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$imm), IIC_iMOVsi,
775 opc, ".w\t$Rd, $Rm, $imm",
776 [(set rGPR:$Rd, (opnode rGPR:$Rm, imm1_31:$imm))]> {
777 let Inst{31-27} = 0b11101;
778 let Inst{26-21} = 0b010010;
779 let Inst{19-16} = 0b1111; // Rn
780 let Inst{5-4} = opcod;
783 def rr : T2sThreeReg<
784 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
785 opc, ".w\t$Rd, $Rn, $Rm",
786 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
787 let Inst{31-27} = 0b11111;
788 let Inst{26-23} = 0b0100;
789 let Inst{22-21} = opcod;
790 let Inst{15-12} = 0b1111;
791 let Inst{7-4} = 0b0000;
795 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
796 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
797 /// a explicit result, only implicitly set CPSR.
798 let isCompare = 1, Defs = [CPSR] in {
799 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
800 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
803 def ri : T2OneRegCmpImm<
804 (outs), (ins GPR:$Rn, t2_so_imm:$imm), iii,
805 opc, ".w\t$Rn, $imm",
806 [(opnode GPR:$Rn, t2_so_imm:$imm)]> {
807 let Inst{31-27} = 0b11110;
809 let Inst{24-21} = opcod;
810 let Inst{20} = 1; // The S bit.
812 let Inst{11-8} = 0b1111; // Rd
815 def rr : T2TwoRegCmp<
816 (outs), (ins GPR:$lhs, rGPR:$rhs), iir,
817 opc, ".w\t$lhs, $rhs",
818 [(opnode GPR:$lhs, rGPR:$rhs)]> {
819 let Inst{31-27} = 0b11101;
820 let Inst{26-25} = 0b01;
821 let Inst{24-21} = opcod;
822 let Inst{20} = 1; // The S bit.
823 let Inst{14-12} = 0b000; // imm3
824 let Inst{11-8} = 0b1111; // Rd
825 let Inst{7-6} = 0b00; // imm2
826 let Inst{5-4} = 0b00; // type
829 def rs : T2OneRegCmpShiftedReg<
830 (outs), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
831 opc, ".w\t$Rn, $ShiftedRm",
832 [(opnode GPR:$Rn, t2_so_reg:$ShiftedRm)]> {
833 let Inst{31-27} = 0b11101;
834 let Inst{26-25} = 0b01;
835 let Inst{24-21} = opcod;
836 let Inst{20} = 1; // The S bit.
837 let Inst{11-8} = 0b1111; // Rd
842 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
843 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
844 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
845 def i12 : T2Ii12<(outs GPR:$Rt), (ins t2addrmode_imm12:$addr), iii,
846 opc, ".w\t$Rt, $addr",
847 [(set GPR:$Rt, (opnode t2addrmode_imm12:$addr))]> {
848 let Inst{31-27} = 0b11111;
849 let Inst{26-25} = 0b00;
850 let Inst{24} = signed;
852 let Inst{22-21} = opcod;
853 let Inst{20} = 1; // load
856 let Inst{15-12} = Rt;
859 let Inst{19-16} = addr{16-13}; // Rn
860 let Inst{23} = addr{12}; // U
861 let Inst{11-0} = addr{11-0}; // imm
863 def i8 : T2Ii8 <(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), iii,
865 [(set GPR:$Rt, (opnode t2addrmode_imm8:$addr))]> {
866 let Inst{31-27} = 0b11111;
867 let Inst{26-25} = 0b00;
868 let Inst{24} = signed;
870 let Inst{22-21} = opcod;
871 let Inst{20} = 1; // load
873 // Offset: index==TRUE, wback==FALSE
874 let Inst{10} = 1; // The P bit.
875 let Inst{8} = 0; // The W bit.
878 let Inst{15-12} = Rt;
881 let Inst{19-16} = addr{12-9}; // Rn
882 let Inst{9} = addr{8}; // U
883 let Inst{7-0} = addr{7-0}; // imm
885 def s : T2Iso <(outs GPR:$Rt), (ins t2addrmode_so_reg:$addr), iis,
886 opc, ".w\t$Rt, $addr",
887 [(set GPR:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
888 let Inst{31-27} = 0b11111;
889 let Inst{26-25} = 0b00;
890 let Inst{24} = signed;
892 let Inst{22-21} = opcod;
893 let Inst{20} = 1; // load
894 let Inst{11-6} = 0b000000;
897 let Inst{15-12} = Rt;
900 let Inst{19-16} = addr{9-6}; // Rn
901 let Inst{3-0} = addr{5-2}; // Rm
902 let Inst{5-4} = addr{1-0}; // imm
905 def pci : tPseudoInst<(outs GPR:$Rt), (ins i32imm:$addr), Size4Bytes, iis,
906 [(set GPR:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]>;
909 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
910 multiclass T2I_st<bits<2> opcod, string opc,
911 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
912 def i12 : T2Ii12<(outs), (ins GPR:$Rt, t2addrmode_imm12:$addr), iii,
913 opc, ".w\t$Rt, $addr",
914 [(opnode GPR:$Rt, t2addrmode_imm12:$addr)]> {
915 let Inst{31-27} = 0b11111;
916 let Inst{26-23} = 0b0001;
917 let Inst{22-21} = opcod;
918 let Inst{20} = 0; // !load
921 let Inst{15-12} = Rt;
924 let Inst{19-16} = addr{16-13}; // Rn
925 let Inst{23} = addr{12}; // U
926 let Inst{11-0} = addr{11-0}; // imm
928 def i8 : T2Ii8 <(outs), (ins GPR:$Rt, t2addrmode_imm8:$addr), iii,
930 [(opnode GPR:$Rt, t2addrmode_imm8:$addr)]> {
931 let Inst{31-27} = 0b11111;
932 let Inst{26-23} = 0b0000;
933 let Inst{22-21} = opcod;
934 let Inst{20} = 0; // !load
936 // Offset: index==TRUE, wback==FALSE
937 let Inst{10} = 1; // The P bit.
938 let Inst{8} = 0; // The W bit.
941 let Inst{15-12} = Rt;
944 let Inst{19-16} = addr{12-9}; // Rn
945 let Inst{9} = addr{8}; // U
946 let Inst{7-0} = addr{7-0}; // imm
948 def s : T2Iso <(outs), (ins GPR:$Rt, t2addrmode_so_reg:$addr), iis,
949 opc, ".w\t$Rt, $addr",
950 [(opnode GPR:$Rt, t2addrmode_so_reg:$addr)]> {
951 let Inst{31-27} = 0b11111;
952 let Inst{26-23} = 0b0000;
953 let Inst{22-21} = opcod;
954 let Inst{20} = 0; // !load
955 let Inst{11-6} = 0b000000;
958 let Inst{15-12} = Rt;
961 let Inst{19-16} = addr{9-6}; // Rn
962 let Inst{3-0} = addr{5-2}; // Rm
963 let Inst{5-4} = addr{1-0}; // imm
967 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
968 /// register and one whose operand is a register rotated by 8/16/24.
969 multiclass T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> {
970 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
972 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
973 let Inst{31-27} = 0b11111;
974 let Inst{26-23} = 0b0100;
975 let Inst{22-20} = opcod;
976 let Inst{19-16} = 0b1111; // Rn
977 let Inst{15-12} = 0b1111;
979 let Inst{5-4} = 0b00; // rotate
981 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
982 opc, ".w\t$Rd, $Rm, ror $rot",
983 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]> {
984 let Inst{31-27} = 0b11111;
985 let Inst{26-23} = 0b0100;
986 let Inst{22-20} = opcod;
987 let Inst{19-16} = 0b1111; // Rn
988 let Inst{15-12} = 0b1111;
992 let Inst{5-4} = rot{1-0}; // rotate
996 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
997 multiclass T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
998 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1000 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>,
1001 Requires<[HasT2ExtractPack, IsThumb2]> {
1002 let Inst{31-27} = 0b11111;
1003 let Inst{26-23} = 0b0100;
1004 let Inst{22-20} = opcod;
1005 let Inst{19-16} = 0b1111; // Rn
1006 let Inst{15-12} = 0b1111;
1008 let Inst{5-4} = 0b00; // rotate
1010 def r_rot : T2TwoReg<(outs rGPR:$dst), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1011 opc, "\t$dst, $Rm, ror $rot",
1012 [(set rGPR:$dst, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1013 Requires<[HasT2ExtractPack, IsThumb2]> {
1014 let Inst{31-27} = 0b11111;
1015 let Inst{26-23} = 0b0100;
1016 let Inst{22-20} = opcod;
1017 let Inst{19-16} = 0b1111; // Rn
1018 let Inst{15-12} = 0b1111;
1022 let Inst{5-4} = rot{1-0}; // rotate
1026 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1028 multiclass T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> {
1029 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1030 opc, "\t$Rd, $Rm", []> {
1031 let Inst{31-27} = 0b11111;
1032 let Inst{26-23} = 0b0100;
1033 let Inst{22-20} = opcod;
1034 let Inst{19-16} = 0b1111; // Rn
1035 let Inst{15-12} = 0b1111;
1037 let Inst{5-4} = 0b00; // rotate
1039 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1040 opc, "\t$Rd, $Rm, ror $rot", []> {
1041 let Inst{31-27} = 0b11111;
1042 let Inst{26-23} = 0b0100;
1043 let Inst{22-20} = opcod;
1044 let Inst{19-16} = 0b1111; // Rn
1045 let Inst{15-12} = 0b1111;
1049 let Inst{5-4} = rot{1-0}; // rotate
1053 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1054 /// register and one whose operand is a register rotated by 8/16/24.
1055 multiclass T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> {
1056 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1057 opc, "\t$Rd, $Rn, $Rm",
1058 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
1059 Requires<[HasT2ExtractPack, IsThumb2]> {
1060 let Inst{31-27} = 0b11111;
1061 let Inst{26-23} = 0b0100;
1062 let Inst{22-20} = opcod;
1063 let Inst{15-12} = 0b1111;
1065 let Inst{5-4} = 0b00; // rotate
1067 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1068 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot",
1069 [(set rGPR:$Rd, (opnode rGPR:$Rn,
1070 (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1071 Requires<[HasT2ExtractPack, IsThumb2]> {
1072 let Inst{31-27} = 0b11111;
1073 let Inst{26-23} = 0b0100;
1074 let Inst{22-20} = opcod;
1075 let Inst{15-12} = 0b1111;
1079 let Inst{5-4} = rot{1-0}; // rotate
1083 // DO variant - disassembly only, no pattern
1085 multiclass T2I_exta_rrot_DO<bits<3> opcod, string opc> {
1086 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1087 opc, "\t$Rd, $Rn, $Rm", []> {
1088 let Inst{31-27} = 0b11111;
1089 let Inst{26-23} = 0b0100;
1090 let Inst{22-20} = opcod;
1091 let Inst{15-12} = 0b1111;
1093 let Inst{5-4} = 0b00; // rotate
1095 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1096 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot", []> {
1097 let Inst{31-27} = 0b11111;
1098 let Inst{26-23} = 0b0100;
1099 let Inst{22-20} = opcod;
1100 let Inst{15-12} = 0b1111;
1104 let Inst{5-4} = rot{1-0}; // rotate
1108 //===----------------------------------------------------------------------===//
1110 //===----------------------------------------------------------------------===//
1112 //===----------------------------------------------------------------------===//
1113 // Miscellaneous Instructions.
1116 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1117 string asm, list<dag> pattern>
1118 : T2XI<oops, iops, itin, asm, pattern> {
1122 let Inst{11-8} = Rd;
1123 let Inst{26} = label{11};
1124 let Inst{14-12} = label{10-8};
1125 let Inst{7-0} = label{7-0};
1128 // LEApcrel - Load a pc-relative address into a register without offending the
1130 let neverHasSideEffects = 1 in {
1131 let isReMaterializable = 1 in
1132 def t2LEApcrel : T2PCOneRegImm<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p), IIC_iALUi,
1133 "adr${p}.w\t$Rd, #$label", []> {
1134 let Inst{31-27} = 0b11110;
1135 let Inst{25-24} = 0b10;
1136 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1139 let Inst{19-16} = 0b1111; // Rn
1144 } // neverHasSideEffects
1145 def t2LEApcrelJT : T2PCOneRegImm<(outs rGPR:$Rd),
1146 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
1147 "adr${p}.w\t$Rd, #${label}_${id}", []> {
1148 let Inst{31-27} = 0b11110;
1149 let Inst{25-24} = 0b10;
1150 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1153 let Inst{19-16} = 0b1111; // Rn
1158 // FIXME: None of these add/sub SP special instructions should be necessary
1159 // at all for thumb2 since they use the same encodings as the generic
1160 // add/sub instructions. In thumb1 we need them since they have dedicated
1161 // encodings. At the least, they should be pseudo instructions.
1162 // ADD r, sp, {so_imm|i12}
1163 let isCodeGenOnly = 1 in {
1164 def t2ADDrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm),
1165 IIC_iALUi, "add", ".w\t$Rd, $Rn, $imm", []> {
1166 let Inst{31-27} = 0b11110;
1168 let Inst{24-21} = 0b1000;
1171 def t2ADDrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm),
1172 IIC_iALUi, "addw", "\t$Rd, $Rn, $imm", []> {
1173 let Inst{31-27} = 0b11110;
1174 let Inst{25-20} = 0b100000;
1178 // ADD r, sp, so_reg
1179 def t2ADDrSPs : T2sTwoRegShiftedReg<
1180 (outs GPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
1181 IIC_iALUsi, "add", ".w\t$Rd, $Rn, $ShiftedRm", []> {
1182 let Inst{31-27} = 0b11101;
1183 let Inst{26-25} = 0b01;
1184 let Inst{24-21} = 0b1000;
1188 // SUB r, sp, {so_imm|i12}
1189 def t2SUBrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm),
1190 IIC_iALUi, "sub", ".w\t$Rd, $Rn, $imm", []> {
1191 let Inst{31-27} = 0b11110;
1193 let Inst{24-21} = 0b1101;
1196 def t2SUBrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm),
1197 IIC_iALUi, "subw", "\t$Rd, $Rn, $imm", []> {
1198 let Inst{31-27} = 0b11110;
1199 let Inst{25-20} = 0b101010;
1203 // SUB r, sp, so_reg
1204 def t2SUBrSPs : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, t2_so_reg:$imm),
1206 "sub", "\t$Rd, $Rn, $imm", []> {
1207 let Inst{31-27} = 0b11101;
1208 let Inst{26-25} = 0b01;
1209 let Inst{24-21} = 0b1101;
1210 let Inst{19-16} = 0b1101; // Rn = sp
1213 } // end isCodeGenOnly = 1
1215 // Signed and unsigned division on v7-M
1216 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1217 "sdiv", "\t$Rd, $Rn, $Rm",
1218 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
1219 Requires<[HasDivide, IsThumb2]> {
1220 let Inst{31-27} = 0b11111;
1221 let Inst{26-21} = 0b011100;
1223 let Inst{15-12} = 0b1111;
1224 let Inst{7-4} = 0b1111;
1227 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1228 "udiv", "\t$Rd, $Rn, $Rm",
1229 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
1230 Requires<[HasDivide, IsThumb2]> {
1231 let Inst{31-27} = 0b11111;
1232 let Inst{26-21} = 0b011101;
1234 let Inst{15-12} = 0b1111;
1235 let Inst{7-4} = 0b1111;
1238 //===----------------------------------------------------------------------===//
1239 // Load / store Instructions.
1243 let canFoldAsLoad = 1, isReMaterializable = 1 in
1244 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
1245 UnOpFrag<(load node:$Src)>>;
1247 // Loads with zero extension
1248 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1249 UnOpFrag<(zextloadi16 node:$Src)>>;
1250 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1251 UnOpFrag<(zextloadi8 node:$Src)>>;
1253 // Loads with sign extension
1254 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1255 UnOpFrag<(sextloadi16 node:$Src)>>;
1256 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1257 UnOpFrag<(sextloadi8 node:$Src)>>;
1259 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1261 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1262 (ins t2addrmode_imm8s4:$addr),
1263 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", []>;
1264 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1266 // zextload i1 -> zextload i8
1267 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1268 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1269 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
1270 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1271 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1272 (t2LDRBs t2addrmode_so_reg:$addr)>;
1273 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1274 (t2LDRBpci tconstpool:$addr)>;
1276 // extload -> zextload
1277 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1279 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1280 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1281 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
1282 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1283 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1284 (t2LDRBs t2addrmode_so_reg:$addr)>;
1285 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1286 (t2LDRBpci tconstpool:$addr)>;
1288 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1289 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1290 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
1291 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1292 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1293 (t2LDRBs t2addrmode_so_reg:$addr)>;
1294 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1295 (t2LDRBpci tconstpool:$addr)>;
1297 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1298 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1299 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
1300 (t2LDRHi8 t2addrmode_imm8:$addr)>;
1301 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1302 (t2LDRHs t2addrmode_so_reg:$addr)>;
1303 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1304 (t2LDRHpci tconstpool:$addr)>;
1306 // FIXME: The destination register of the loads and stores can't be PC, but
1307 // can be SP. We need another regclass (similar to rGPR) to represent
1308 // that. Not a pressing issue since these are selected manually,
1313 let mayLoad = 1, neverHasSideEffects = 1 in {
1314 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1315 (ins t2addrmode_imm8:$addr),
1316 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1317 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1320 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1321 (ins GPR:$base, t2am_imm8_offset:$addr),
1322 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1323 "ldr", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1326 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1327 (ins t2addrmode_imm8:$addr),
1328 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1329 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1331 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1332 (ins GPR:$base, t2am_imm8_offset:$addr),
1333 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1334 "ldrb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1337 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1338 (ins t2addrmode_imm8:$addr),
1339 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1340 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1342 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1343 (ins GPR:$base, t2am_imm8_offset:$addr),
1344 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1345 "ldrh", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1348 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1349 (ins t2addrmode_imm8:$addr),
1350 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1351 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1353 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1354 (ins GPR:$base, t2am_imm8_offset:$addr),
1355 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1356 "ldrsb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1359 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1360 (ins t2addrmode_imm8:$addr),
1361 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1362 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1364 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$Rn),
1365 (ins GPR:$base, t2am_imm8_offset:$addr),
1366 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1367 "ldrsh", "\t$dst, [$Rn], $addr", "$base = $Rn",
1369 } // mayLoad = 1, neverHasSideEffects = 1
1371 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1372 // for disassembly only.
1373 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1374 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1375 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1376 "\t$Rt, $addr", []> {
1377 let Inst{31-27} = 0b11111;
1378 let Inst{26-25} = 0b00;
1379 let Inst{24} = signed;
1381 let Inst{22-21} = type;
1382 let Inst{20} = 1; // load
1384 let Inst{10-8} = 0b110; // PUW.
1388 let Inst{15-12} = Rt;
1389 let Inst{19-16} = addr{12-9};
1390 let Inst{7-0} = addr{7-0};
1393 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1394 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1395 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1396 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1397 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1400 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1401 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1402 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1403 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1404 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1405 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1408 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1409 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1410 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1411 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
1414 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1415 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1416 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1417 "str", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1419 (pre_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1421 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1422 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1423 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1424 "str", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1426 (post_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1428 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1429 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1430 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1431 "strh", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1433 (pre_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1435 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1436 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1437 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1438 "strh", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1440 (post_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1442 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1443 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1444 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1445 "strb", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1447 (pre_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1449 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1450 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1451 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1452 "strb", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1454 (post_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1456 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1458 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1459 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1460 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1461 "\t$Rt, $addr", []> {
1462 let Inst{31-27} = 0b11111;
1463 let Inst{26-25} = 0b00;
1464 let Inst{24} = 0; // not signed
1466 let Inst{22-21} = type;
1467 let Inst{20} = 0; // store
1469 let Inst{10-8} = 0b110; // PUW
1473 let Inst{15-12} = Rt;
1474 let Inst{19-16} = addr{12-9};
1475 let Inst{7-0} = addr{7-0};
1478 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1479 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1480 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1482 // ldrd / strd pre / post variants
1483 // For disassembly only.
1485 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1486 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1487 "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1489 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1490 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1491 "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
1493 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1494 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1495 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1497 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1498 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1499 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
1501 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1502 // data/instruction access. These are for disassembly only.
1503 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1504 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1505 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1507 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1509 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1510 let Inst{31-25} = 0b1111100;
1511 let Inst{24} = instr;
1513 let Inst{21} = write;
1515 let Inst{15-12} = 0b1111;
1518 let Inst{19-16} = addr{16-13}; // Rn
1519 let Inst{23} = addr{12}; // U
1520 let Inst{11-0} = addr{11-0}; // imm12
1523 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1525 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1526 let Inst{31-25} = 0b1111100;
1527 let Inst{24} = instr;
1528 let Inst{23} = 0; // U = 0
1530 let Inst{21} = write;
1532 let Inst{15-12} = 0b1111;
1533 let Inst{11-8} = 0b1100;
1536 let Inst{19-16} = addr{12-9}; // Rn
1537 let Inst{7-0} = addr{7-0}; // imm8
1540 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1542 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1543 let Inst{31-25} = 0b1111100;
1544 let Inst{24} = instr;
1545 let Inst{23} = 0; // add = TRUE for T1
1547 let Inst{21} = write;
1549 let Inst{15-12} = 0b1111;
1550 let Inst{11-6} = 0000000;
1553 let Inst{19-16} = addr{9-6}; // Rn
1554 let Inst{3-0} = addr{5-2}; // Rm
1555 let Inst{5-4} = addr{1-0}; // imm2
1559 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1560 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1561 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1563 //===----------------------------------------------------------------------===//
1564 // Load / store multiple Instructions.
1567 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1568 InstrItinClass itin_upd, bit L_bit> {
1570 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1571 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1575 let Inst{31-27} = 0b11101;
1576 let Inst{26-25} = 0b00;
1577 let Inst{24-23} = 0b01; // Increment After
1579 let Inst{21} = 0; // No writeback
1580 let Inst{20} = L_bit;
1581 let Inst{19-16} = Rn;
1582 let Inst{15-0} = regs;
1585 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1586 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1590 let Inst{31-27} = 0b11101;
1591 let Inst{26-25} = 0b00;
1592 let Inst{24-23} = 0b01; // Increment After
1594 let Inst{21} = 1; // Writeback
1595 let Inst{20} = L_bit;
1596 let Inst{19-16} = Rn;
1597 let Inst{15-0} = regs;
1600 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1601 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1605 let Inst{31-27} = 0b11101;
1606 let Inst{26-25} = 0b00;
1607 let Inst{24-23} = 0b10; // Decrement Before
1609 let Inst{21} = 0; // No writeback
1610 let Inst{20} = L_bit;
1611 let Inst{19-16} = Rn;
1612 let Inst{15-0} = regs;
1615 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1616 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1620 let Inst{31-27} = 0b11101;
1621 let Inst{26-25} = 0b00;
1622 let Inst{24-23} = 0b10; // Decrement Before
1624 let Inst{21} = 1; // Writeback
1625 let Inst{20} = L_bit;
1626 let Inst{19-16} = Rn;
1627 let Inst{15-0} = regs;
1631 let neverHasSideEffects = 1 in {
1633 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1634 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1636 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1637 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1639 } // neverHasSideEffects
1642 //===----------------------------------------------------------------------===//
1643 // Move Instructions.
1646 let neverHasSideEffects = 1 in
1647 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1648 "mov", ".w\t$Rd, $Rm", []> {
1649 let Inst{31-27} = 0b11101;
1650 let Inst{26-25} = 0b01;
1651 let Inst{24-21} = 0b0010;
1652 let Inst{19-16} = 0b1111; // Rn
1653 let Inst{14-12} = 0b000;
1654 let Inst{7-4} = 0b0000;
1657 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1658 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1659 AddedComplexity = 1 in
1660 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1661 "mov", ".w\t$Rd, $imm",
1662 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1663 let Inst{31-27} = 0b11110;
1665 let Inst{24-21} = 0b0010;
1666 let Inst{19-16} = 0b1111; // Rn
1670 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1671 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins i32imm:$imm), IIC_iMOVi,
1672 "movw", "\t$Rd, $imm",
1673 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1674 let Inst{31-27} = 0b11110;
1676 let Inst{24-21} = 0b0010;
1677 let Inst{20} = 0; // The S bit.
1683 let Inst{11-8} = Rd;
1684 let Inst{19-16} = imm{15-12};
1685 let Inst{26} = imm{11};
1686 let Inst{14-12} = imm{10-8};
1687 let Inst{7-0} = imm{7-0};
1690 let Constraints = "$src = $Rd" in
1691 def t2MOVTi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1692 "movt", "\t$Rd, $imm",
1694 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1695 let Inst{31-27} = 0b11110;
1697 let Inst{24-21} = 0b0110;
1698 let Inst{20} = 0; // The S bit.
1704 let Inst{11-8} = Rd;
1705 let Inst{19-16} = imm{15-12};
1706 let Inst{26} = imm{11};
1707 let Inst{14-12} = imm{10-8};
1708 let Inst{7-0} = imm{7-0};
1711 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1713 //===----------------------------------------------------------------------===//
1714 // Extend Instructions.
1719 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1720 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1721 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1722 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1723 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1725 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1726 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1727 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1728 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1729 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1731 // TODO: SXT(A){B|H}16 - done for disassembly only
1735 let AddedComplexity = 16 in {
1736 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1737 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1738 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1739 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1740 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1741 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1743 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1744 // The transformation should probably be done as a combiner action
1745 // instead so we can include a check for masking back in the upper
1746 // eight bits of the source into the lower eight bits of the result.
1747 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1748 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1749 // Requires<[HasT2ExtractPack, IsThumb2]>;
1750 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1751 (t2UXTB16r_rot rGPR:$Src, 8)>,
1752 Requires<[HasT2ExtractPack, IsThumb2]>;
1754 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1755 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1756 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1757 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1758 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1761 //===----------------------------------------------------------------------===//
1762 // Arithmetic Instructions.
1765 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1766 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1767 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1768 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1770 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1771 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1772 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1773 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1774 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1775 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1776 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1778 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1779 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1780 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1781 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1782 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1783 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1784 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1785 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1788 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1789 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1790 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1791 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1793 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1794 // The assume-no-carry-in form uses the negation of the input since add/sub
1795 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1796 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1798 // The AddedComplexity preferences the first variant over the others since
1799 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1800 let AddedComplexity = 1 in
1801 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1802 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1803 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1804 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1805 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1806 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1807 let AddedComplexity = 1 in
1808 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1809 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1810 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1811 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1812 // The with-carry-in form matches bitwise not instead of the negation.
1813 // Effectively, the inverse interpretation of the carry flag already accounts
1814 // for part of the negation.
1815 let AddedComplexity = 1 in
1816 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1817 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1818 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1819 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1821 // Select Bytes -- for disassembly only
1823 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1824 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []> {
1825 let Inst{31-27} = 0b11111;
1826 let Inst{26-24} = 0b010;
1828 let Inst{22-20} = 0b010;
1829 let Inst{15-12} = 0b1111;
1831 let Inst{6-4} = 0b000;
1834 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1835 // And Miscellaneous operations -- for disassembly only
1836 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1837 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1838 : T2I<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), NoItinerary, opc,
1839 "\t$Rd, $Rn, $Rm", pat> {
1840 let Inst{31-27} = 0b11111;
1841 let Inst{26-23} = 0b0101;
1842 let Inst{22-20} = op22_20;
1843 let Inst{15-12} = 0b1111;
1844 let Inst{7-4} = op7_4;
1850 let Inst{11-8} = Rd;
1851 let Inst{19-16} = Rn;
1855 // Saturating add/subtract -- for disassembly only
1857 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1858 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))]>;
1859 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1860 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1861 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1862 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1863 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1864 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1865 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1866 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))]>;
1867 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1868 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1869 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1870 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1871 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1872 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1873 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1874 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1876 // Signed/Unsigned add/subtract -- for disassembly only
1878 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1879 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1880 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1881 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1882 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1883 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1884 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1885 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1886 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1887 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1888 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1889 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1891 // Signed/Unsigned halving add/subtract -- for disassembly only
1893 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1894 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1895 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1896 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1897 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1898 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1899 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1900 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1901 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1902 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1903 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1904 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1906 // Helper class for disassembly only
1907 // A6.3.16 & A6.3.17
1908 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1909 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1910 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1911 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1912 let Inst{31-27} = 0b11111;
1913 let Inst{26-24} = 0b011;
1914 let Inst{23} = long;
1915 let Inst{22-20} = op22_20;
1916 let Inst{7-4} = op7_4;
1919 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1920 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1921 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1922 let Inst{31-27} = 0b11111;
1923 let Inst{26-24} = 0b011;
1924 let Inst{23} = long;
1925 let Inst{22-20} = op22_20;
1926 let Inst{7-4} = op7_4;
1929 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1931 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1932 (ins rGPR:$Rn, rGPR:$Rm),
1933 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []> {
1934 let Inst{15-12} = 0b1111;
1936 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1937 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1938 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>;
1940 // Signed/Unsigned saturate -- for disassembly only
1942 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1943 string opc, string asm, list<dag> pattern>
1944 : T2I<oops, iops, itin, opc, asm, pattern> {
1950 let Inst{11-8} = Rd;
1951 let Inst{19-16} = Rn;
1952 let Inst{4-0} = sat_imm{4-0};
1953 let Inst{21} = sh{6};
1954 let Inst{14-12} = sh{4-2};
1955 let Inst{7-6} = sh{1-0};
1959 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1960 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1961 [/* For disassembly only; pattern left blank */]> {
1962 let Inst{31-27} = 0b11110;
1963 let Inst{25-22} = 0b1100;
1968 def t2SSAT16: T2SatI<
1969 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
1970 "ssat16", "\t$Rd, $sat_imm, $Rn",
1971 [/* For disassembly only; pattern left blank */]> {
1972 let Inst{31-27} = 0b11110;
1973 let Inst{25-22} = 0b1100;
1976 let Inst{21} = 1; // sh = '1'
1977 let Inst{14-12} = 0b000; // imm3 = '000'
1978 let Inst{7-6} = 0b00; // imm2 = '00'
1982 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1983 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
1984 [/* For disassembly only; pattern left blank */]> {
1985 let Inst{31-27} = 0b11110;
1986 let Inst{25-22} = 0b1110;
1991 def t2USAT16: T2SatI<
1992 (outs rGPR:$dst), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
1993 "usat16", "\t$dst, $sat_imm, $Rn",
1994 [/* For disassembly only; pattern left blank */]> {
1995 let Inst{31-27} = 0b11110;
1996 let Inst{25-22} = 0b1110;
1999 let Inst{21} = 1; // sh = '1'
2000 let Inst{14-12} = 0b000; // imm3 = '000'
2001 let Inst{7-6} = 0b00; // imm2 = '00'
2004 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2005 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2007 //===----------------------------------------------------------------------===//
2008 // Shift and rotate Instructions.
2011 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2012 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2013 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2014 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2016 let Uses = [CPSR] in {
2017 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2018 "rrx", "\t$Rd, $Rm",
2019 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2020 let Inst{31-27} = 0b11101;
2021 let Inst{26-25} = 0b01;
2022 let Inst{24-21} = 0b0010;
2023 let Inst{19-16} = 0b1111; // Rn
2024 let Inst{14-12} = 0b000;
2025 let Inst{7-4} = 0b0011;
2029 let Defs = [CPSR] in {
2030 def t2MOVsrl_flag : T2TwoRegShiftImm<
2031 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2032 "lsrs", ".w\t$Rd, $Rm, #1",
2033 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2034 let Inst{31-27} = 0b11101;
2035 let Inst{26-25} = 0b01;
2036 let Inst{24-21} = 0b0010;
2037 let Inst{20} = 1; // The S bit.
2038 let Inst{19-16} = 0b1111; // Rn
2039 let Inst{5-4} = 0b01; // Shift type.
2040 // Shift amount = Inst{14-12:7-6} = 1.
2041 let Inst{14-12} = 0b000;
2042 let Inst{7-6} = 0b01;
2044 def t2MOVsra_flag : T2TwoRegShiftImm<
2045 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2046 "asrs", ".w\t$Rd, $Rm, #1",
2047 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2048 let Inst{31-27} = 0b11101;
2049 let Inst{26-25} = 0b01;
2050 let Inst{24-21} = 0b0010;
2051 let Inst{20} = 1; // The S bit.
2052 let Inst{19-16} = 0b1111; // Rn
2053 let Inst{5-4} = 0b10; // Shift type.
2054 // Shift amount = Inst{14-12:7-6} = 1.
2055 let Inst{14-12} = 0b000;
2056 let Inst{7-6} = 0b01;
2060 //===----------------------------------------------------------------------===//
2061 // Bitwise Instructions.
2064 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2065 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2066 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2067 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2068 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2069 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2070 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2071 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2072 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2074 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2075 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2076 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2078 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2079 string opc, string asm, list<dag> pattern>
2080 : T2I<oops, iops, itin, opc, asm, pattern> {
2085 let Inst{11-8} = Rd;
2086 let Inst{4-0} = msb{4-0};
2087 let Inst{14-12} = lsb{4-2};
2088 let Inst{7-6} = lsb{1-0};
2091 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2092 string opc, string asm, list<dag> pattern>
2093 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2096 let Inst{19-16} = Rn;
2099 let Constraints = "$src = $Rd" in
2100 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2101 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2102 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2103 let Inst{31-27} = 0b11110;
2105 let Inst{24-20} = 0b10110;
2106 let Inst{19-16} = 0b1111; // Rn
2110 let msb{4-0} = imm{9-5};
2111 let lsb{4-0} = imm{4-0};
2114 def t2SBFX: T2TwoRegBitFI<
2115 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2116 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2117 let Inst{31-27} = 0b11110;
2119 let Inst{24-20} = 0b10100;
2123 def t2UBFX: T2TwoRegBitFI<
2124 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2125 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2126 let Inst{31-27} = 0b11110;
2128 let Inst{24-20} = 0b11100;
2132 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2133 let Constraints = "$src = $Rd" in
2134 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2135 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2136 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2137 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2138 bf_inv_mask_imm:$imm))]> {
2139 let Inst{31-27} = 0b11110;
2141 let Inst{24-20} = 0b10110;
2145 let msb{4-0} = imm{9-5};
2146 let lsb{4-0} = imm{4-0};
2149 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2150 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2151 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2153 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2154 let AddedComplexity = 1 in
2155 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2156 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2157 UnOpFrag<(not node:$Src)>, 1, 1>;
2160 let AddedComplexity = 1 in
2161 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2162 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2164 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2165 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2166 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2167 Requires<[IsThumb2]>;
2169 def : T2Pat<(t2_so_imm_not:$src),
2170 (t2MVNi t2_so_imm_not:$src)>;
2172 //===----------------------------------------------------------------------===//
2173 // Multiply Instructions.
2175 let isCommutable = 1 in
2176 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2177 "mul", "\t$Rd, $Rn, $Rm",
2178 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2179 let Inst{31-27} = 0b11111;
2180 let Inst{26-23} = 0b0110;
2181 let Inst{22-20} = 0b000;
2182 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2183 let Inst{7-4} = 0b0000; // Multiply
2186 def t2MLA: T2FourReg<
2187 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2188 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2189 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2190 let Inst{31-27} = 0b11111;
2191 let Inst{26-23} = 0b0110;
2192 let Inst{22-20} = 0b000;
2193 let Inst{7-4} = 0b0000; // Multiply
2196 def t2MLS: T2FourReg<
2197 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2198 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2199 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2200 let Inst{31-27} = 0b11111;
2201 let Inst{26-23} = 0b0110;
2202 let Inst{22-20} = 0b000;
2203 let Inst{7-4} = 0b0001; // Multiply and Subtract
2206 // Extra precision multiplies with low / high results
2207 let neverHasSideEffects = 1 in {
2208 let isCommutable = 1 in {
2209 def t2SMULL : T2MulLong<0b000, 0b0000,
2210 (outs rGPR:$Rd, rGPR:$Ra),
2211 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2212 "smull", "\t$Rd, $Ra, $Rn, $Rm", []>;
2214 def t2UMULL : T2MulLong<0b010, 0b0000,
2215 (outs rGPR:$RdLo, rGPR:$RdHi),
2216 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2217 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2220 // Multiply + accumulate
2221 def t2SMLAL : T2MulLong<0b100, 0b0000,
2222 (outs rGPR:$RdLo, rGPR:$RdHi),
2223 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2224 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2226 def t2UMLAL : T2MulLong<0b110, 0b0000,
2227 (outs rGPR:$RdLo, rGPR:$RdHi),
2228 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2229 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2231 def t2UMAAL : T2MulLong<0b110, 0b0110,
2232 (outs rGPR:$RdLo, rGPR:$RdHi),
2233 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2234 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2235 } // neverHasSideEffects
2237 // Rounding variants of the below included for disassembly only
2239 // Most significant word multiply
2240 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2241 "smmul", "\t$Rd, $Rn, $Rm",
2242 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]> {
2243 let Inst{31-27} = 0b11111;
2244 let Inst{26-23} = 0b0110;
2245 let Inst{22-20} = 0b101;
2246 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2247 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2250 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2251 "smmulr", "\t$Rd, $Rn, $Rm", []> {
2252 let Inst{31-27} = 0b11111;
2253 let Inst{26-23} = 0b0110;
2254 let Inst{22-20} = 0b101;
2255 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2256 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2259 def t2SMMLA : T2FourReg<
2260 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2261 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2262 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]> {
2263 let Inst{31-27} = 0b11111;
2264 let Inst{26-23} = 0b0110;
2265 let Inst{22-20} = 0b101;
2266 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2269 def t2SMMLAR: T2FourReg<
2270 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2271 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []> {
2272 let Inst{31-27} = 0b11111;
2273 let Inst{26-23} = 0b0110;
2274 let Inst{22-20} = 0b101;
2275 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2278 def t2SMMLS: T2FourReg<
2279 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2280 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2281 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]> {
2282 let Inst{31-27} = 0b11111;
2283 let Inst{26-23} = 0b0110;
2284 let Inst{22-20} = 0b110;
2285 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2288 def t2SMMLSR:T2FourReg<
2289 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2290 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []> {
2291 let Inst{31-27} = 0b11111;
2292 let Inst{26-23} = 0b0110;
2293 let Inst{22-20} = 0b110;
2294 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2297 multiclass T2I_smul<string opc, PatFrag opnode> {
2298 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2299 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2300 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2301 (sext_inreg rGPR:$Rm, i16)))]> {
2302 let Inst{31-27} = 0b11111;
2303 let Inst{26-23} = 0b0110;
2304 let Inst{22-20} = 0b001;
2305 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2306 let Inst{7-6} = 0b00;
2307 let Inst{5-4} = 0b00;
2310 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2311 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2312 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2313 (sra rGPR:$Rm, (i32 16))))]> {
2314 let Inst{31-27} = 0b11111;
2315 let Inst{26-23} = 0b0110;
2316 let Inst{22-20} = 0b001;
2317 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2318 let Inst{7-6} = 0b00;
2319 let Inst{5-4} = 0b01;
2322 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2323 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2324 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2325 (sext_inreg rGPR:$Rm, i16)))]> {
2326 let Inst{31-27} = 0b11111;
2327 let Inst{26-23} = 0b0110;
2328 let Inst{22-20} = 0b001;
2329 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2330 let Inst{7-6} = 0b00;
2331 let Inst{5-4} = 0b10;
2334 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2335 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2336 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2337 (sra rGPR:$Rm, (i32 16))))]> {
2338 let Inst{31-27} = 0b11111;
2339 let Inst{26-23} = 0b0110;
2340 let Inst{22-20} = 0b001;
2341 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2342 let Inst{7-6} = 0b00;
2343 let Inst{5-4} = 0b11;
2346 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2347 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2348 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2349 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]> {
2350 let Inst{31-27} = 0b11111;
2351 let Inst{26-23} = 0b0110;
2352 let Inst{22-20} = 0b011;
2353 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2354 let Inst{7-6} = 0b00;
2355 let Inst{5-4} = 0b00;
2358 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2359 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2360 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2361 (sra rGPR:$Rm, (i32 16))), (i32 16)))]> {
2362 let Inst{31-27} = 0b11111;
2363 let Inst{26-23} = 0b0110;
2364 let Inst{22-20} = 0b011;
2365 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2366 let Inst{7-6} = 0b00;
2367 let Inst{5-4} = 0b01;
2372 multiclass T2I_smla<string opc, PatFrag opnode> {
2374 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2375 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2376 [(set rGPR:$Rd, (add rGPR:$Ra,
2377 (opnode (sext_inreg rGPR:$Rn, i16),
2378 (sext_inreg rGPR:$Rm, i16))))]> {
2379 let Inst{31-27} = 0b11111;
2380 let Inst{26-23} = 0b0110;
2381 let Inst{22-20} = 0b001;
2382 let Inst{7-6} = 0b00;
2383 let Inst{5-4} = 0b00;
2387 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2388 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2389 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2390 (sra rGPR:$Rm, (i32 16)))))]> {
2391 let Inst{31-27} = 0b11111;
2392 let Inst{26-23} = 0b0110;
2393 let Inst{22-20} = 0b001;
2394 let Inst{7-6} = 0b00;
2395 let Inst{5-4} = 0b01;
2399 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2400 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2401 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2402 (sext_inreg rGPR:$Rm, i16))))]> {
2403 let Inst{31-27} = 0b11111;
2404 let Inst{26-23} = 0b0110;
2405 let Inst{22-20} = 0b001;
2406 let Inst{7-6} = 0b00;
2407 let Inst{5-4} = 0b10;
2411 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2412 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2413 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2414 (sra rGPR:$Rm, (i32 16)))))]> {
2415 let Inst{31-27} = 0b11111;
2416 let Inst{26-23} = 0b0110;
2417 let Inst{22-20} = 0b001;
2418 let Inst{7-6} = 0b00;
2419 let Inst{5-4} = 0b11;
2423 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2424 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2425 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2426 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]> {
2427 let Inst{31-27} = 0b11111;
2428 let Inst{26-23} = 0b0110;
2429 let Inst{22-20} = 0b011;
2430 let Inst{7-6} = 0b00;
2431 let Inst{5-4} = 0b00;
2435 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2436 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2437 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2438 (sra rGPR:$Rm, (i32 16))), (i32 16))))]> {
2439 let Inst{31-27} = 0b11111;
2440 let Inst{26-23} = 0b0110;
2441 let Inst{22-20} = 0b011;
2442 let Inst{7-6} = 0b00;
2443 let Inst{5-4} = 0b01;
2447 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2448 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2450 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2451 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2452 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2453 [/* For disassembly only; pattern left blank */]>;
2454 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2455 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2456 [/* For disassembly only; pattern left blank */]>;
2457 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2458 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2459 [/* For disassembly only; pattern left blank */]>;
2460 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2461 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2462 [/* For disassembly only; pattern left blank */]>;
2464 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2465 // These are for disassembly only.
2467 def t2SMUAD: T2ThreeReg_mac<
2468 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2469 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []> {
2470 let Inst{15-12} = 0b1111;
2472 def t2SMUADX:T2ThreeReg_mac<
2473 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2474 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []> {
2475 let Inst{15-12} = 0b1111;
2477 def t2SMUSD: T2ThreeReg_mac<
2478 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2479 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []> {
2480 let Inst{15-12} = 0b1111;
2482 def t2SMUSDX:T2ThreeReg_mac<
2483 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2484 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []> {
2485 let Inst{15-12} = 0b1111;
2487 def t2SMLAD : T2ThreeReg_mac<
2488 0, 0b010, 0b0000, (outs rGPR:$Rd),
2489 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2490 "\t$Rd, $Rn, $Rm, $Ra", []>;
2491 def t2SMLADX : T2FourReg_mac<
2492 0, 0b010, 0b0001, (outs rGPR:$Rd),
2493 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2494 "\t$Rd, $Rn, $Rm, $Ra", []>;
2495 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2496 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2497 "\t$Rd, $Rn, $Rm, $Ra", []>;
2498 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2499 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2500 "\t$Rd, $Rn, $Rm, $Ra", []>;
2501 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2502 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2503 "\t$Ra, $Rd, $Rm, $Rn", []>;
2504 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2505 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2506 "\t$Ra, $Rd, $Rm, $Rn", []>;
2507 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2508 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2509 "\t$Ra, $Rd, $Rm, $Rn", []>;
2510 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2511 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2512 "\t$Ra, $Rd, $Rm, $Rn", []>;
2514 //===----------------------------------------------------------------------===//
2515 // Misc. Arithmetic Instructions.
2518 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2519 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2520 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2521 let Inst{31-27} = 0b11111;
2522 let Inst{26-22} = 0b01010;
2523 let Inst{21-20} = op1;
2524 let Inst{15-12} = 0b1111;
2525 let Inst{7-6} = 0b10;
2526 let Inst{5-4} = op2;
2530 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2531 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2533 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2534 "rbit", "\t$Rd, $Rm",
2535 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2537 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2538 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2540 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2541 "rev16", ".w\t$Rd, $Rm",
2543 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF),
2544 (or (and (shl rGPR:$Rm, (i32 8)), 0xFF00),
2545 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF0000),
2546 (and (shl rGPR:$Rm, (i32 8)), 0xFF000000)))))]>;
2548 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2549 "revsh", ".w\t$Rd, $Rm",
2552 (or (srl (and rGPR:$Rm, 0xFF00), (i32 8)),
2553 (shl rGPR:$Rm, (i32 8))), i16))]>;
2555 def t2PKHBT : T2ThreeReg<
2556 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2557 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2558 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2559 (and (shl rGPR:$Rm, lsl_amt:$sh),
2561 Requires<[HasT2ExtractPack, IsThumb2]> {
2562 let Inst{31-27} = 0b11101;
2563 let Inst{26-25} = 0b01;
2564 let Inst{24-20} = 0b01100;
2565 let Inst{5} = 0; // BT form
2569 let Inst{14-12} = sh{7-5};
2570 let Inst{7-6} = sh{4-3};
2573 // Alternate cases for PKHBT where identities eliminate some nodes.
2574 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2575 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2576 Requires<[HasT2ExtractPack, IsThumb2]>;
2577 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2578 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2579 Requires<[HasT2ExtractPack, IsThumb2]>;
2581 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2582 // will match the pattern below.
2583 def t2PKHTB : T2ThreeReg<
2584 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2585 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2586 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2587 (and (sra rGPR:$Rm, asr_amt:$sh),
2589 Requires<[HasT2ExtractPack, IsThumb2]> {
2590 let Inst{31-27} = 0b11101;
2591 let Inst{26-25} = 0b01;
2592 let Inst{24-20} = 0b01100;
2593 let Inst{5} = 1; // TB form
2597 let Inst{14-12} = sh{7-5};
2598 let Inst{7-6} = sh{4-3};
2601 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2602 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2603 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2604 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2605 Requires<[HasT2ExtractPack, IsThumb2]>;
2606 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2607 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2608 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2609 Requires<[HasT2ExtractPack, IsThumb2]>;
2611 //===----------------------------------------------------------------------===//
2612 // Comparison Instructions...
2614 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2615 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2616 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2618 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_imm:$imm),
2619 (t2CMPri GPR:$lhs, t2_so_imm:$imm)>;
2620 def : T2Pat<(ARMcmpZ GPR:$lhs, rGPR:$rhs),
2621 (t2CMPrr GPR:$lhs, rGPR:$rhs)>;
2622 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_reg:$rhs),
2623 (t2CMPrs GPR:$lhs, t2_so_reg:$rhs)>;
2625 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2626 // Compare-to-zero still works out, just not the relationals
2627 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2628 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2629 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2630 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2631 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2633 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2634 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2636 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2637 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2639 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2640 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2641 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2642 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2643 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2644 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2646 // Conditional moves
2647 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2648 // a two-value operand where a dag node expects two operands. :(
2649 let neverHasSideEffects = 1 in {
2650 def t2MOVCCr : T2TwoReg<
2651 (outs rGPR:$Rd), (ins rGPR:$false, rGPR:$Rm), IIC_iCMOVr,
2652 "mov", ".w\t$Rd, $Rm",
2653 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2654 RegConstraint<"$false = $Rd"> {
2655 let Inst{31-27} = 0b11101;
2656 let Inst{26-25} = 0b01;
2657 let Inst{24-21} = 0b0010;
2658 let Inst{20} = 0; // The S bit.
2659 let Inst{19-16} = 0b1111; // Rn
2660 let Inst{14-12} = 0b000;
2661 let Inst{7-4} = 0b0000;
2664 let isMoveImm = 1 in
2665 def t2MOVCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2666 IIC_iCMOVi, "mov", ".w\t$Rd, $imm",
2667 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2668 RegConstraint<"$false = $Rd"> {
2669 let Inst{31-27} = 0b11110;
2671 let Inst{24-21} = 0b0010;
2672 let Inst{20} = 0; // The S bit.
2673 let Inst{19-16} = 0b1111; // Rn
2677 let isMoveImm = 1 in
2678 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, i32imm:$imm),
2680 "movw", "\t$Rd, $imm", []>,
2681 RegConstraint<"$false = $Rd"> {
2682 let Inst{31-27} = 0b11110;
2684 let Inst{24-21} = 0b0010;
2685 let Inst{20} = 0; // The S bit.
2691 let Inst{11-8} = Rd;
2692 let Inst{19-16} = imm{15-12};
2693 let Inst{26} = imm{11};
2694 let Inst{14-12} = imm{10-8};
2695 let Inst{7-0} = imm{7-0};
2698 let isMoveImm = 1 in
2699 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2700 (ins rGPR:$false, i32imm:$src, pred:$p),
2701 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2703 let isMoveImm = 1 in
2704 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2705 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2706 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2707 imm:$cc, CCR:$ccr))*/]>,
2708 RegConstraint<"$false = $Rd"> {
2709 let Inst{31-27} = 0b11110;
2711 let Inst{24-21} = 0b0011;
2712 let Inst{20} = 0; // The S bit.
2713 let Inst{19-16} = 0b1111; // Rn
2717 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2718 string opc, string asm, list<dag> pattern>
2719 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2720 let Inst{31-27} = 0b11101;
2721 let Inst{26-25} = 0b01;
2722 let Inst{24-21} = 0b0010;
2723 let Inst{20} = 0; // The S bit.
2724 let Inst{19-16} = 0b1111; // Rn
2725 let Inst{5-4} = opcod; // Shift type.
2727 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2728 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2729 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2730 RegConstraint<"$false = $Rd">;
2731 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2732 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2733 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2734 RegConstraint<"$false = $Rd">;
2735 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2736 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2737 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2738 RegConstraint<"$false = $Rd">;
2739 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2740 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2741 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2742 RegConstraint<"$false = $Rd">;
2743 } // neverHasSideEffects
2745 //===----------------------------------------------------------------------===//
2746 // Atomic operations intrinsics
2749 // memory barriers protect the atomic sequences
2750 let hasSideEffects = 1 in {
2751 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2752 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2753 Requires<[IsThumb, HasDB]> {
2755 let Inst{31-4} = 0xf3bf8f5;
2756 let Inst{3-0} = opt;
2760 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2762 [/* For disassembly only; pattern left blank */]>,
2763 Requires<[IsThumb, HasDB]> {
2765 let Inst{31-4} = 0xf3bf8f4;
2766 let Inst{3-0} = opt;
2769 // ISB has only full system option -- for disassembly only
2770 def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
2771 [/* For disassembly only; pattern left blank */]>,
2772 Requires<[IsThumb2, HasV7]> {
2773 let Inst{31-4} = 0xf3bf8f6;
2774 let Inst{3-0} = 0b1111;
2777 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2778 InstrItinClass itin, string opc, string asm, string cstr,
2779 list<dag> pattern, bits<4> rt2 = 0b1111>
2780 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2781 let Inst{31-27} = 0b11101;
2782 let Inst{26-20} = 0b0001101;
2783 let Inst{11-8} = rt2;
2784 let Inst{7-6} = 0b01;
2785 let Inst{5-4} = opcod;
2786 let Inst{3-0} = 0b1111;
2790 let Inst{19-16} = Rn;
2791 let Inst{15-12} = Rt;
2793 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2794 InstrItinClass itin, string opc, string asm, string cstr,
2795 list<dag> pattern, bits<4> rt2 = 0b1111>
2796 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2797 let Inst{31-27} = 0b11101;
2798 let Inst{26-20} = 0b0001100;
2799 let Inst{11-8} = rt2;
2800 let Inst{7-6} = 0b01;
2801 let Inst{5-4} = opcod;
2806 let Inst{11-8} = Rd;
2807 let Inst{19-16} = Rn;
2808 let Inst{15-12} = Rt;
2811 let mayLoad = 1 in {
2812 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2813 Size4Bytes, NoItinerary, "ldrexb", "\t$Rt, [$Rn]",
2815 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2816 Size4Bytes, NoItinerary, "ldrexh", "\t$Rt, [$Rn]",
2818 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2819 Size4Bytes, NoItinerary,
2820 "ldrex", "\t$Rt, [$Rn]", "",
2822 let Inst{31-27} = 0b11101;
2823 let Inst{26-20} = 0b0000101;
2824 let Inst{11-8} = 0b1111;
2825 let Inst{7-0} = 0b00000000; // imm8 = 0
2827 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2), (ins rGPR:$Rn),
2828 AddrModeNone, Size4Bytes, NoItinerary,
2829 "ldrexd", "\t$Rt, $Rt2, [$Rn]", "",
2832 let Inst{11-8} = Rt2;
2836 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2837 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2838 AddrModeNone, Size4Bytes, NoItinerary,
2839 "strexb", "\t$Rd, $Rt, [$Rn]", "", []>;
2840 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2841 AddrModeNone, Size4Bytes, NoItinerary,
2842 "strexh", "\t$Rd, $Rt, [$Rn]", "", []>;
2843 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2844 AddrModeNone, Size4Bytes, NoItinerary,
2845 "strex", "\t$Rd, $Rt, [$Rn]", "",
2847 let Inst{31-27} = 0b11101;
2848 let Inst{26-20} = 0b0000100;
2849 let Inst{7-0} = 0b00000000; // imm8 = 0
2851 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2852 (ins rGPR:$Rt, rGPR:$Rt2, rGPR:$Rn),
2853 AddrModeNone, Size4Bytes, NoItinerary,
2854 "strexd", "\t$Rd, $Rt, $Rt2, [$Rn]", "", [],
2857 let Inst{11-8} = Rt2;
2861 // Clear-Exclusive is for disassembly only.
2862 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2863 [/* For disassembly only; pattern left blank */]>,
2864 Requires<[IsARM, HasV7]> {
2865 let Inst{31-20} = 0xf3b;
2866 let Inst{15-14} = 0b10;
2868 let Inst{7-4} = 0b0010;
2871 //===----------------------------------------------------------------------===//
2875 // __aeabi_read_tp preserves the registers r1-r3.
2877 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
2878 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2879 "bl\t__aeabi_read_tp",
2880 [(set R0, ARMthread_pointer)]> {
2881 let Inst{31-27} = 0b11110;
2882 let Inst{15-14} = 0b11;
2887 //===----------------------------------------------------------------------===//
2888 // SJLJ Exception handling intrinsics
2889 // eh_sjlj_setjmp() is an instruction sequence to store the return
2890 // address and save #0 in R0 for the non-longjmp case.
2891 // Since by its nature we may be coming from some other function to get
2892 // here, and we're using the stack frame for the containing function to
2893 // save/restore registers, we can't keep anything live in regs across
2894 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2895 // when we get here from a longjmp(). We force everthing out of registers
2896 // except for our own input by listing the relevant registers in Defs. By
2897 // doing so, we also cause the prologue/epilogue code to actively preserve
2898 // all of the callee-saved resgisters, which is exactly what we want.
2899 // $val is a scratch register for our use.
2901 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2902 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2903 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2904 D31 ], hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2905 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2906 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2907 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2908 Requires<[IsThumb2, HasVFP2]>;
2912 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2913 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2914 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2915 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2916 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2917 Requires<[IsThumb2, NoVFP]>;
2921 //===----------------------------------------------------------------------===//
2922 // Control-Flow Instructions
2925 // FIXME: remove when we have a way to marking a MI with these properties.
2926 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2928 // FIXME: Should pc be an implicit operand like PICADD, etc?
2929 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2930 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2931 def t2LDMIA_RET: T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2932 reglist:$regs, variable_ops),
2934 "ldmia${p}.w\t$Rn!, $regs",
2939 let Inst{31-27} = 0b11101;
2940 let Inst{26-25} = 0b00;
2941 let Inst{24-23} = 0b01; // Increment After
2943 let Inst{21} = 1; // Writeback
2945 let Inst{19-16} = Rn;
2946 let Inst{15-0} = regs;
2949 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2950 let isPredicable = 1 in
2951 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2953 [(br bb:$target)]> {
2954 let Inst{31-27} = 0b11110;
2955 let Inst{15-14} = 0b10;
2959 let Inst{26} = target{19};
2960 let Inst{11} = target{18};
2961 let Inst{13} = target{17};
2962 let Inst{21-16} = target{16-11};
2963 let Inst{10-0} = target{10-0};
2966 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2967 def t2BR_JT : tPseudoInst<(outs),
2968 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
2969 SizeSpecial, IIC_Br,
2970 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
2972 // FIXME: Add a non-pc based case that can be predicated.
2973 def t2TBB_JT : tPseudoInst<(outs),
2974 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2975 SizeSpecial, IIC_Br, []>;
2977 def t2TBH_JT : tPseudoInst<(outs),
2978 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2979 SizeSpecial, IIC_Br, []>;
2981 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
2982 "tbb", "\t[$Rn, $Rm]", []> {
2985 let Inst{27-20} = 0b10001101;
2986 let Inst{19-16} = Rn;
2987 let Inst{15-5} = 0b11110000000;
2988 let Inst{4} = 0; // B form
2992 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
2993 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
2996 let Inst{27-20} = 0b10001101;
2997 let Inst{19-16} = Rn;
2998 let Inst{15-5} = 0b11110000000;
2999 let Inst{4} = 1; // H form
3002 } // isNotDuplicable, isIndirectBranch
3004 } // isBranch, isTerminator, isBarrier
3006 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3007 // a two-value operand where a dag node expects two operands. :(
3008 let isBranch = 1, isTerminator = 1 in
3009 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3011 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3012 let Inst{31-27} = 0b11110;
3013 let Inst{15-14} = 0b10;
3017 let Inst{25-22} = p;
3020 let Inst{26} = target{20};
3021 let Inst{11} = target{19};
3022 let Inst{13} = target{18};
3023 let Inst{21-16} = target{17-12};
3024 let Inst{10-0} = target{11-1};
3029 let Defs = [ITSTATE] in
3030 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3031 AddrModeNone, Size2Bytes, IIC_iALUx,
3032 "it$mask\t$cc", "", []> {
3033 // 16-bit instruction.
3034 let Inst{31-16} = 0x0000;
3035 let Inst{15-8} = 0b10111111;
3040 let Inst{3-0} = mask;
3043 // Branch and Exchange Jazelle -- for disassembly only
3045 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3046 [/* For disassembly only; pattern left blank */]> {
3047 let Inst{31-27} = 0b11110;
3049 let Inst{25-20} = 0b111100;
3050 let Inst{15-14} = 0b10;
3054 let Inst{19-16} = func;
3057 // Change Processor State is a system instruction -- for disassembly only.
3058 // The singleton $opt operand contains the following information:
3059 // opt{4-0} = mode from Inst{4-0}
3060 // opt{5} = changemode from Inst{17}
3061 // opt{8-6} = AIF from Inst{8-6}
3062 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
3063 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
3064 [/* For disassembly only; pattern left blank */]> {
3065 let Inst{31-27} = 0b11110;
3067 let Inst{25-20} = 0b111010;
3068 let Inst{15-14} = 0b10;
3074 let Inst{4-0} = opt{4-0};
3077 let Inst{8} = opt{5};
3080 let Inst{5} = opt{6};
3083 let Inst{6} = opt{7};
3086 let Inst{7} = opt{8};
3089 let Inst{10-9} = opt{10-9};
3092 // A6.3.4 Branches and miscellaneous control
3093 // Table A6-14 Change Processor State, and hint instructions
3094 // Helper class for disassembly only.
3095 class T2I_hint<bits<8> op7_0, string opc, string asm>
3096 : T2I<(outs), (ins), NoItinerary, opc, asm,
3097 [/* For disassembly only; pattern left blank */]> {
3098 let Inst{31-20} = 0xf3a;
3099 let Inst{15-14} = 0b10;
3101 let Inst{10-8} = 0b000;
3102 let Inst{7-0} = op7_0;
3105 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3106 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3107 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3108 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3109 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3111 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
3112 [/* For disassembly only; pattern left blank */]> {
3113 let Inst{31-20} = 0xf3a;
3114 let Inst{15-14} = 0b10;
3116 let Inst{10-8} = 0b000;
3117 let Inst{7-4} = 0b1111;
3120 let Inst{3-0} = opt;
3123 // Secure Monitor Call is a system instruction -- for disassembly only
3124 // Option = Inst{19-16}
3125 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
3126 [/* For disassembly only; pattern left blank */]> {
3127 let Inst{31-27} = 0b11110;
3128 let Inst{26-20} = 0b1111111;
3129 let Inst{15-12} = 0b1000;
3132 let Inst{19-16} = opt;
3135 class T2SRS<bits<12> op31_20,
3136 dag oops, dag iops, InstrItinClass itin,
3137 string opc, string asm, list<dag> pattern>
3138 : T2I<oops, iops, itin, opc, asm, pattern> {
3139 let Inst{31-20} = op31_20{11-0};
3142 let Inst{4-0} = mode{4-0};
3145 // Store Return State is a system instruction -- for disassembly only
3146 def t2SRSDBW : T2SRS<0b111010000010,
3147 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3148 [/* For disassembly only; pattern left blank */]>;
3149 def t2SRSDB : T2SRS<0b111010000000,
3150 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3151 [/* For disassembly only; pattern left blank */]>;
3152 def t2SRSIAW : T2SRS<0b111010011010,
3153 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3154 [/* For disassembly only; pattern left blank */]>;
3155 def t2SRSIA : T2SRS<0b111010011000,
3156 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3157 [/* For disassembly only; pattern left blank */]>;
3159 // Return From Exception is a system instruction -- for disassembly only
3161 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3162 string opc, string asm, list<dag> pattern>
3163 : T2I<oops, iops, itin, opc, asm, pattern> {
3164 let Inst{31-20} = op31_20{11-0};
3167 let Inst{19-16} = Rn;
3170 def t2RFEDBW : T2RFE<0b111010000011,
3171 (outs), (ins rGPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3172 [/* For disassembly only; pattern left blank */]>;
3173 def t2RFEDB : T2RFE<0b111010000001,
3174 (outs), (ins rGPR:$Rn), NoItinerary, "rfeab", "\t$Rn",
3175 [/* For disassembly only; pattern left blank */]>;
3176 def t2RFEIAW : T2RFE<0b111010011011,
3177 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3178 [/* For disassembly only; pattern left blank */]>;
3179 def t2RFEIA : T2RFE<0b111010011001,
3180 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3181 [/* For disassembly only; pattern left blank */]>;
3183 //===----------------------------------------------------------------------===//
3184 // Non-Instruction Patterns
3187 // 32-bit immediate using movw + movt.
3188 // This is a single pseudo instruction to make it re-materializable.
3189 // FIXME: Remove this when we can do generalized remat.
3190 let isReMaterializable = 1, isMoveImm = 1 in
3191 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3192 [(set rGPR:$dst, (i32 imm:$src))]>,
3193 Requires<[IsThumb, HasV6T2]>;
3195 // ConstantPool, GlobalAddress, and JumpTable
3196 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3197 Requires<[IsThumb2, DontUseMovt]>;
3198 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3199 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3200 Requires<[IsThumb2, UseMovt]>;
3202 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3203 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3205 // Pseudo instruction that combines ldr from constpool and add pc. This should
3206 // be expanded into two instructions late to allow if-conversion and
3208 let canFoldAsLoad = 1, isReMaterializable = 1 in
3209 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3211 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3213 Requires<[IsThumb2]>;
3215 //===----------------------------------------------------------------------===//
3216 // Move between special register and ARM core register -- for disassembly only
3219 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3220 dag oops, dag iops, InstrItinClass itin,
3221 string opc, string asm, list<dag> pattern>
3222 : T2I<oops, iops, itin, opc, asm, pattern> {
3223 let Inst{31-20} = op31_20{11-0};
3224 let Inst{15-14} = op15_14{1-0};
3225 let Inst{12} = op12{0};
3228 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3229 dag oops, dag iops, InstrItinClass itin,
3230 string opc, string asm, list<dag> pattern>
3231 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3233 let Inst{11-8} = Rd;
3236 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3237 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3238 [/* For disassembly only; pattern left blank */]>;
3239 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3240 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3241 [/* For disassembly only; pattern left blank */]>;
3243 class T2MSR<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3244 dag oops, dag iops, InstrItinClass itin,
3245 string opc, string asm, list<dag> pattern>
3246 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3249 let Inst{19-16} = Rn;
3250 let Inst{11-8} = mask;
3253 def t2MSR : T2MSR<0b111100111000, 0b10, 0,
3254 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3256 [/* For disassembly only; pattern left blank */]>;
3257 def t2MSRsys : T2MSR<0b111100111001, 0b10, 0,
3258 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3260 [/* For disassembly only; pattern left blank */]>;