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:$addr)>;
1306 // FIXME: The destination register of the loads and stores can't be PC, but
1307 // can be SP. We need another regclass (similar to rGPR) to represent
1308 // that. Not a pressing issue since these are selected manually,
1313 class T2Iidxld<bit signed, bits<2> opcod, bit pre,
1315 AddrMode am, IndexMode im, InstrItinClass itin,
1316 string opc, string asm, string cstr, list<dag> pattern>
1317 : T2Iidxldst<signed, opcod, 1, pre, oops,
1318 iops, am,im,itin, opc, asm, cstr, pattern>;
1319 class T2Iidxst<bit signed, bits<2> opcod, bit pre,
1321 AddrMode am, IndexMode im, InstrItinClass itin,
1322 string opc, string asm, string cstr, list<dag> pattern>
1323 : T2Iidxldst<signed, opcod, 0, pre, oops,
1324 iops, am,im,itin, opc, asm, cstr, pattern>;
1326 let mayLoad = 1, neverHasSideEffects = 1 in {
1327 def t2LDR_PRE : T2Iidxld<0, 0b10, 1, (outs GPR:$Rt, GPR:$Rn),
1328 (ins t2addrmode_imm8:$addr),
1329 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1330 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1333 def t2LDR_POST : T2Iidxld<0, 0b10, 0, (outs GPR:$Rt, GPR:$Rn),
1334 (ins GPR:$base, t2am_imm8_offset:$offset),
1335 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1336 "ldr", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1339 def t2LDRB_PRE : T2Iidxld<0, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1340 (ins t2addrmode_imm8:$addr),
1341 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1342 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1344 def t2LDRB_POST : T2Iidxld<0, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1345 (ins GPR:$base, t2am_imm8_offset:$offset),
1346 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1347 "ldrb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1350 def t2LDRH_PRE : T2Iidxld<0, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1351 (ins t2addrmode_imm8:$addr),
1352 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1353 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1355 def t2LDRH_POST : T2Iidxld<0, 0b01, 0, (outs GPR:$Rt, GPR:$Rn),
1356 (ins GPR:$base, t2am_imm8_offset:$offset),
1357 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1358 "ldrh", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1361 def t2LDRSB_PRE : T2Iidxld<1, 0b00, 1, (outs GPR:$Rt, GPR:$Rn),
1362 (ins t2addrmode_imm8:$addr),
1363 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1364 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1366 def t2LDRSB_POST : T2Iidxld<1, 0b00, 0, (outs GPR:$Rt, GPR:$Rn),
1367 (ins GPR:$base, t2am_imm8_offset:$offset),
1368 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1369 "ldrsb", "\t$Rt, [$Rn], $offset", "$base = $Rn",
1372 def t2LDRSH_PRE : T2Iidxld<1, 0b01, 1, (outs GPR:$Rt, GPR:$Rn),
1373 (ins t2addrmode_imm8:$addr),
1374 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1375 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1377 def t2LDRSH_POST : T2Iidxld<1, 0b01, 0, (outs GPR:$dst, GPR:$Rn),
1378 (ins GPR:$base, t2am_imm8_offset:$offset),
1379 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1380 "ldrsh", "\t$dst, [$Rn], $offset", "$base = $Rn",
1382 } // mayLoad = 1, neverHasSideEffects = 1
1384 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1385 // for disassembly only.
1386 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1387 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1388 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1389 "\t$Rt, $addr", []> {
1390 let Inst{31-27} = 0b11111;
1391 let Inst{26-25} = 0b00;
1392 let Inst{24} = signed;
1394 let Inst{22-21} = type;
1395 let Inst{20} = 1; // load
1397 let Inst{10-8} = 0b110; // PUW.
1401 let Inst{15-12} = Rt;
1402 let Inst{19-16} = addr{12-9};
1403 let Inst{7-0} = addr{7-0};
1406 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1407 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1408 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1409 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1410 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1413 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1414 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1415 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1416 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1417 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1418 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1421 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1422 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1423 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1424 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
1427 def t2STR_PRE : T2Iidxst<0, 0b10, 1, (outs GPR:$base_wb),
1428 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1429 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1430 "str", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1432 (pre_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1434 def t2STR_POST : T2Iidxst<0, 0b10, 0, (outs GPR:$base_wb),
1435 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1436 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1437 "str", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1439 (post_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1441 def t2STRH_PRE : T2Iidxst<0, 0b01, 1, (outs GPR:$base_wb),
1442 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1443 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1444 "strh", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1446 (pre_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1448 def t2STRH_POST : T2Iidxst<0, 0b01, 0, (outs GPR:$base_wb),
1449 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1450 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1451 "strh", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1453 (post_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1455 def t2STRB_PRE : T2Iidxst<0, 0b00, 1, (outs GPR:$base_wb),
1456 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1457 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1458 "strb", "\t$Rt, [$Rn, $addr]!", "$Rn = $base_wb",
1460 (pre_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1462 def t2STRB_POST : T2Iidxst<0, 0b00, 0, (outs GPR:$base_wb),
1463 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1464 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1465 "strb", "\t$Rt, [$Rn], $addr", "$Rn = $base_wb",
1467 (post_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1469 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1471 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1472 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1473 : T2Ii8<(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1474 "\t$Rt, $addr", []> {
1475 let Inst{31-27} = 0b11111;
1476 let Inst{26-25} = 0b00;
1477 let Inst{24} = 0; // not signed
1479 let Inst{22-21} = type;
1480 let Inst{20} = 0; // store
1482 let Inst{10-8} = 0b110; // PUW
1486 let Inst{15-12} = Rt;
1487 let Inst{19-16} = addr{12-9};
1488 let Inst{7-0} = addr{7-0};
1491 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1492 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1493 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1495 // ldrd / strd pre / post variants
1496 // For disassembly only.
1498 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1499 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1500 "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1502 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$Rt, GPR:$Rt2),
1503 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1504 "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
1506 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1507 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1508 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1510 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1511 (ins GPR:$Rt, GPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1512 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
1514 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1515 // data/instruction access. These are for disassembly only.
1516 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1517 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1518 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1520 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1522 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1523 let Inst{31-25} = 0b1111100;
1524 let Inst{24} = instr;
1526 let Inst{21} = write;
1528 let Inst{15-12} = 0b1111;
1531 let Inst{19-16} = addr{16-13}; // Rn
1532 let Inst{23} = addr{12}; // U
1533 let Inst{11-0} = addr{11-0}; // imm12
1536 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1538 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1539 let Inst{31-25} = 0b1111100;
1540 let Inst{24} = instr;
1541 let Inst{23} = 0; // U = 0
1543 let Inst{21} = write;
1545 let Inst{15-12} = 0b1111;
1546 let Inst{11-8} = 0b1100;
1549 let Inst{19-16} = addr{12-9}; // Rn
1550 let Inst{7-0} = addr{7-0}; // imm8
1553 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1555 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1556 let Inst{31-25} = 0b1111100;
1557 let Inst{24} = instr;
1558 let Inst{23} = 0; // add = TRUE for T1
1560 let Inst{21} = write;
1562 let Inst{15-12} = 0b1111;
1563 let Inst{11-6} = 0000000;
1566 let Inst{19-16} = addr{9-6}; // Rn
1567 let Inst{3-0} = addr{5-2}; // Rm
1568 let Inst{5-4} = addr{1-0}; // imm2
1572 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1573 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1574 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1576 //===----------------------------------------------------------------------===//
1577 // Load / store multiple Instructions.
1580 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1581 InstrItinClass itin_upd, bit L_bit> {
1583 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1584 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1588 let Inst{31-27} = 0b11101;
1589 let Inst{26-25} = 0b00;
1590 let Inst{24-23} = 0b01; // Increment After
1592 let Inst{21} = 0; // No writeback
1593 let Inst{20} = L_bit;
1594 let Inst{19-16} = Rn;
1595 let Inst{15-0} = regs;
1598 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1599 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1603 let Inst{31-27} = 0b11101;
1604 let Inst{26-25} = 0b00;
1605 let Inst{24-23} = 0b01; // Increment After
1607 let Inst{21} = 1; // Writeback
1608 let Inst{20} = L_bit;
1609 let Inst{19-16} = Rn;
1610 let Inst{15-0} = regs;
1613 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1614 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1618 let Inst{31-27} = 0b11101;
1619 let Inst{26-25} = 0b00;
1620 let Inst{24-23} = 0b10; // Decrement Before
1622 let Inst{21} = 0; // No writeback
1623 let Inst{20} = L_bit;
1624 let Inst{19-16} = Rn;
1625 let Inst{15-0} = regs;
1628 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1629 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1633 let Inst{31-27} = 0b11101;
1634 let Inst{26-25} = 0b00;
1635 let Inst{24-23} = 0b10; // Decrement Before
1637 let Inst{21} = 1; // Writeback
1638 let Inst{20} = L_bit;
1639 let Inst{19-16} = Rn;
1640 let Inst{15-0} = regs;
1644 let neverHasSideEffects = 1 in {
1646 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1647 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1649 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1650 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1652 } // neverHasSideEffects
1655 //===----------------------------------------------------------------------===//
1656 // Move Instructions.
1659 let neverHasSideEffects = 1 in
1660 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1661 "mov", ".w\t$Rd, $Rm", []> {
1662 let Inst{31-27} = 0b11101;
1663 let Inst{26-25} = 0b01;
1664 let Inst{24-21} = 0b0010;
1665 let Inst{19-16} = 0b1111; // Rn
1666 let Inst{14-12} = 0b000;
1667 let Inst{7-4} = 0b0000;
1670 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1671 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1672 AddedComplexity = 1 in
1673 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1674 "mov", ".w\t$Rd, $imm",
1675 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1676 let Inst{31-27} = 0b11110;
1678 let Inst{24-21} = 0b0010;
1679 let Inst{19-16} = 0b1111; // Rn
1683 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1684 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins i32imm:$imm), IIC_iMOVi,
1685 "movw", "\t$Rd, $imm",
1686 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1687 let Inst{31-27} = 0b11110;
1689 let Inst{24-21} = 0b0010;
1690 let Inst{20} = 0; // The S bit.
1696 let Inst{11-8} = Rd;
1697 let Inst{19-16} = imm{15-12};
1698 let Inst{26} = imm{11};
1699 let Inst{14-12} = imm{10-8};
1700 let Inst{7-0} = imm{7-0};
1703 let Constraints = "$src = $Rd" in
1704 def t2MOVTi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1705 "movt", "\t$Rd, $imm",
1707 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1708 let Inst{31-27} = 0b11110;
1710 let Inst{24-21} = 0b0110;
1711 let Inst{20} = 0; // The S bit.
1717 let Inst{11-8} = Rd;
1718 let Inst{19-16} = imm{15-12};
1719 let Inst{26} = imm{11};
1720 let Inst{14-12} = imm{10-8};
1721 let Inst{7-0} = imm{7-0};
1724 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1726 //===----------------------------------------------------------------------===//
1727 // Extend Instructions.
1732 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1733 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1734 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1735 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1736 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1738 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1739 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1740 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1741 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1742 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1744 // TODO: SXT(A){B|H}16 - done for disassembly only
1748 let AddedComplexity = 16 in {
1749 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1750 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1751 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1752 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1753 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1754 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1756 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1757 // The transformation should probably be done as a combiner action
1758 // instead so we can include a check for masking back in the upper
1759 // eight bits of the source into the lower eight bits of the result.
1760 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1761 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1762 // Requires<[HasT2ExtractPack, IsThumb2]>;
1763 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1764 (t2UXTB16r_rot rGPR:$Src, 8)>,
1765 Requires<[HasT2ExtractPack, IsThumb2]>;
1767 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1768 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1769 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1770 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1771 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1774 //===----------------------------------------------------------------------===//
1775 // Arithmetic Instructions.
1778 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1779 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1780 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1781 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1783 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1784 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1785 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1786 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1787 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1788 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1789 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1791 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1792 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1793 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1794 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1795 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1796 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1797 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1798 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1801 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1802 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1803 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1804 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1806 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1807 // The assume-no-carry-in form uses the negation of the input since add/sub
1808 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1809 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1811 // The AddedComplexity preferences the first variant over the others since
1812 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1813 let AddedComplexity = 1 in
1814 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1815 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1816 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1817 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1818 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1819 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1820 let AddedComplexity = 1 in
1821 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1822 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1823 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1824 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1825 // The with-carry-in form matches bitwise not instead of the negation.
1826 // Effectively, the inverse interpretation of the carry flag already accounts
1827 // for part of the negation.
1828 let AddedComplexity = 1 in
1829 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1830 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1831 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1832 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1834 // Select Bytes -- for disassembly only
1836 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1837 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []> {
1838 let Inst{31-27} = 0b11111;
1839 let Inst{26-24} = 0b010;
1841 let Inst{22-20} = 0b010;
1842 let Inst{15-12} = 0b1111;
1844 let Inst{6-4} = 0b000;
1847 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1848 // And Miscellaneous operations -- for disassembly only
1849 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1850 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1851 : T2I<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), NoItinerary, opc,
1852 "\t$Rd, $Rn, $Rm", pat> {
1853 let Inst{31-27} = 0b11111;
1854 let Inst{26-23} = 0b0101;
1855 let Inst{22-20} = op22_20;
1856 let Inst{15-12} = 0b1111;
1857 let Inst{7-4} = op7_4;
1863 let Inst{11-8} = Rd;
1864 let Inst{19-16} = Rn;
1868 // Saturating add/subtract -- for disassembly only
1870 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1871 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))]>;
1872 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1873 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1874 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1875 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1876 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1877 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1878 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1879 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))]>;
1880 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1881 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1882 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1883 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1884 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1885 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1886 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1887 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1889 // Signed/Unsigned add/subtract -- for disassembly only
1891 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1892 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1893 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1894 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1895 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1896 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1897 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1898 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1899 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1900 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1901 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1902 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1904 // Signed/Unsigned halving add/subtract -- for disassembly only
1906 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1907 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1908 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1909 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1910 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1911 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1912 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1913 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1914 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1915 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1916 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1917 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1919 // Helper class for disassembly only
1920 // A6.3.16 & A6.3.17
1921 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1922 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1923 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1924 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1925 let Inst{31-27} = 0b11111;
1926 let Inst{26-24} = 0b011;
1927 let Inst{23} = long;
1928 let Inst{22-20} = op22_20;
1929 let Inst{7-4} = op7_4;
1932 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1933 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1934 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1935 let Inst{31-27} = 0b11111;
1936 let Inst{26-24} = 0b011;
1937 let Inst{23} = long;
1938 let Inst{22-20} = op22_20;
1939 let Inst{7-4} = op7_4;
1942 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1944 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1945 (ins rGPR:$Rn, rGPR:$Rm),
1946 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []> {
1947 let Inst{15-12} = 0b1111;
1949 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1950 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1951 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>;
1953 // Signed/Unsigned saturate -- for disassembly only
1955 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1956 string opc, string asm, list<dag> pattern>
1957 : T2I<oops, iops, itin, opc, asm, pattern> {
1963 let Inst{11-8} = Rd;
1964 let Inst{19-16} = Rn;
1965 let Inst{4-0} = sat_imm{4-0};
1966 let Inst{21} = sh{6};
1967 let Inst{14-12} = sh{4-2};
1968 let Inst{7-6} = sh{1-0};
1972 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1973 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1974 [/* For disassembly only; pattern left blank */]> {
1975 let Inst{31-27} = 0b11110;
1976 let Inst{25-22} = 0b1100;
1981 def t2SSAT16: T2SatI<
1982 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
1983 "ssat16", "\t$Rd, $sat_imm, $Rn",
1984 [/* For disassembly only; pattern left blank */]> {
1985 let Inst{31-27} = 0b11110;
1986 let Inst{25-22} = 0b1100;
1989 let Inst{21} = 1; // sh = '1'
1990 let Inst{14-12} = 0b000; // imm3 = '000'
1991 let Inst{7-6} = 0b00; // imm2 = '00'
1995 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1996 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
1997 [/* For disassembly only; pattern left blank */]> {
1998 let Inst{31-27} = 0b11110;
1999 let Inst{25-22} = 0b1110;
2004 def t2USAT16: T2SatI<
2005 (outs rGPR:$dst), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
2006 "usat16", "\t$dst, $sat_imm, $Rn",
2007 [/* For disassembly only; pattern left blank */]> {
2008 let Inst{31-27} = 0b11110;
2009 let Inst{25-22} = 0b1110;
2012 let Inst{21} = 1; // sh = '1'
2013 let Inst{14-12} = 0b000; // imm3 = '000'
2014 let Inst{7-6} = 0b00; // imm2 = '00'
2017 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2018 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2020 //===----------------------------------------------------------------------===//
2021 // Shift and rotate Instructions.
2024 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2025 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2026 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2027 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2029 let Uses = [CPSR] in {
2030 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2031 "rrx", "\t$Rd, $Rm",
2032 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2033 let Inst{31-27} = 0b11101;
2034 let Inst{26-25} = 0b01;
2035 let Inst{24-21} = 0b0010;
2036 let Inst{19-16} = 0b1111; // Rn
2037 let Inst{14-12} = 0b000;
2038 let Inst{7-4} = 0b0011;
2042 let Defs = [CPSR] in {
2043 def t2MOVsrl_flag : T2TwoRegShiftImm<
2044 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2045 "lsrs", ".w\t$Rd, $Rm, #1",
2046 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2047 let Inst{31-27} = 0b11101;
2048 let Inst{26-25} = 0b01;
2049 let Inst{24-21} = 0b0010;
2050 let Inst{20} = 1; // The S bit.
2051 let Inst{19-16} = 0b1111; // Rn
2052 let Inst{5-4} = 0b01; // Shift type.
2053 // Shift amount = Inst{14-12:7-6} = 1.
2054 let Inst{14-12} = 0b000;
2055 let Inst{7-6} = 0b01;
2057 def t2MOVsra_flag : T2TwoRegShiftImm<
2058 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2059 "asrs", ".w\t$Rd, $Rm, #1",
2060 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2061 let Inst{31-27} = 0b11101;
2062 let Inst{26-25} = 0b01;
2063 let Inst{24-21} = 0b0010;
2064 let Inst{20} = 1; // The S bit.
2065 let Inst{19-16} = 0b1111; // Rn
2066 let Inst{5-4} = 0b10; // Shift type.
2067 // Shift amount = Inst{14-12:7-6} = 1.
2068 let Inst{14-12} = 0b000;
2069 let Inst{7-6} = 0b01;
2073 //===----------------------------------------------------------------------===//
2074 // Bitwise Instructions.
2077 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2078 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2079 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2080 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2081 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2082 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2083 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2084 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2085 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2087 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2088 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2089 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2091 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2092 string opc, string asm, list<dag> pattern>
2093 : T2I<oops, iops, itin, opc, asm, pattern> {
2098 let Inst{11-8} = Rd;
2099 let Inst{4-0} = msb{4-0};
2100 let Inst{14-12} = lsb{4-2};
2101 let Inst{7-6} = lsb{1-0};
2104 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2105 string opc, string asm, list<dag> pattern>
2106 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2109 let Inst{19-16} = Rn;
2112 let Constraints = "$src = $Rd" in
2113 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2114 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2115 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2116 let Inst{31-27} = 0b11110;
2118 let Inst{24-20} = 0b10110;
2119 let Inst{19-16} = 0b1111; // Rn
2123 let msb{4-0} = imm{9-5};
2124 let lsb{4-0} = imm{4-0};
2127 def t2SBFX: T2TwoRegBitFI<
2128 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2129 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2130 let Inst{31-27} = 0b11110;
2132 let Inst{24-20} = 0b10100;
2136 def t2UBFX: T2TwoRegBitFI<
2137 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2138 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2139 let Inst{31-27} = 0b11110;
2141 let Inst{24-20} = 0b11100;
2145 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2146 let Constraints = "$src = $Rd" in
2147 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2148 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2149 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2150 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2151 bf_inv_mask_imm:$imm))]> {
2152 let Inst{31-27} = 0b11110;
2154 let Inst{24-20} = 0b10110;
2158 let msb{4-0} = imm{9-5};
2159 let lsb{4-0} = imm{4-0};
2162 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2163 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2164 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2166 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2167 let AddedComplexity = 1 in
2168 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2169 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2170 UnOpFrag<(not node:$Src)>, 1, 1>;
2173 let AddedComplexity = 1 in
2174 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2175 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2177 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2178 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2179 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2180 Requires<[IsThumb2]>;
2182 def : T2Pat<(t2_so_imm_not:$src),
2183 (t2MVNi t2_so_imm_not:$src)>;
2185 //===----------------------------------------------------------------------===//
2186 // Multiply Instructions.
2188 let isCommutable = 1 in
2189 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2190 "mul", "\t$Rd, $Rn, $Rm",
2191 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2192 let Inst{31-27} = 0b11111;
2193 let Inst{26-23} = 0b0110;
2194 let Inst{22-20} = 0b000;
2195 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2196 let Inst{7-4} = 0b0000; // Multiply
2199 def t2MLA: T2FourReg<
2200 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2201 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2202 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2203 let Inst{31-27} = 0b11111;
2204 let Inst{26-23} = 0b0110;
2205 let Inst{22-20} = 0b000;
2206 let Inst{7-4} = 0b0000; // Multiply
2209 def t2MLS: T2FourReg<
2210 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2211 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2212 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2213 let Inst{31-27} = 0b11111;
2214 let Inst{26-23} = 0b0110;
2215 let Inst{22-20} = 0b000;
2216 let Inst{7-4} = 0b0001; // Multiply and Subtract
2219 // Extra precision multiplies with low / high results
2220 let neverHasSideEffects = 1 in {
2221 let isCommutable = 1 in {
2222 def t2SMULL : T2MulLong<0b000, 0b0000,
2223 (outs rGPR:$Rd, rGPR:$Ra),
2224 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2225 "smull", "\t$Rd, $Ra, $Rn, $Rm", []>;
2227 def t2UMULL : T2MulLong<0b010, 0b0000,
2228 (outs rGPR:$RdLo, rGPR:$RdHi),
2229 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2230 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2233 // Multiply + accumulate
2234 def t2SMLAL : T2MulLong<0b100, 0b0000,
2235 (outs rGPR:$RdLo, rGPR:$RdHi),
2236 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2237 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2239 def t2UMLAL : T2MulLong<0b110, 0b0000,
2240 (outs rGPR:$RdLo, rGPR:$RdHi),
2241 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2242 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2244 def t2UMAAL : T2MulLong<0b110, 0b0110,
2245 (outs rGPR:$RdLo, rGPR:$RdHi),
2246 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2247 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2248 } // neverHasSideEffects
2250 // Rounding variants of the below included for disassembly only
2252 // Most significant word multiply
2253 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2254 "smmul", "\t$Rd, $Rn, $Rm",
2255 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]> {
2256 let Inst{31-27} = 0b11111;
2257 let Inst{26-23} = 0b0110;
2258 let Inst{22-20} = 0b101;
2259 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2260 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2263 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2264 "smmulr", "\t$Rd, $Rn, $Rm", []> {
2265 let Inst{31-27} = 0b11111;
2266 let Inst{26-23} = 0b0110;
2267 let Inst{22-20} = 0b101;
2268 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2269 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2272 def t2SMMLA : T2FourReg<
2273 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2274 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2275 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]> {
2276 let Inst{31-27} = 0b11111;
2277 let Inst{26-23} = 0b0110;
2278 let Inst{22-20} = 0b101;
2279 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2282 def t2SMMLAR: T2FourReg<
2283 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2284 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []> {
2285 let Inst{31-27} = 0b11111;
2286 let Inst{26-23} = 0b0110;
2287 let Inst{22-20} = 0b101;
2288 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2291 def t2SMMLS: T2FourReg<
2292 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2293 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2294 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]> {
2295 let Inst{31-27} = 0b11111;
2296 let Inst{26-23} = 0b0110;
2297 let Inst{22-20} = 0b110;
2298 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2301 def t2SMMLSR:T2FourReg<
2302 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2303 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []> {
2304 let Inst{31-27} = 0b11111;
2305 let Inst{26-23} = 0b0110;
2306 let Inst{22-20} = 0b110;
2307 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2310 multiclass T2I_smul<string opc, PatFrag opnode> {
2311 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2312 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2313 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2314 (sext_inreg rGPR:$Rm, i16)))]> {
2315 let Inst{31-27} = 0b11111;
2316 let Inst{26-23} = 0b0110;
2317 let Inst{22-20} = 0b001;
2318 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2319 let Inst{7-6} = 0b00;
2320 let Inst{5-4} = 0b00;
2323 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2324 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2325 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2326 (sra rGPR:$Rm, (i32 16))))]> {
2327 let Inst{31-27} = 0b11111;
2328 let Inst{26-23} = 0b0110;
2329 let Inst{22-20} = 0b001;
2330 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2331 let Inst{7-6} = 0b00;
2332 let Inst{5-4} = 0b01;
2335 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2336 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2337 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2338 (sext_inreg rGPR:$Rm, i16)))]> {
2339 let Inst{31-27} = 0b11111;
2340 let Inst{26-23} = 0b0110;
2341 let Inst{22-20} = 0b001;
2342 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2343 let Inst{7-6} = 0b00;
2344 let Inst{5-4} = 0b10;
2347 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2348 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2349 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2350 (sra rGPR:$Rm, (i32 16))))]> {
2351 let Inst{31-27} = 0b11111;
2352 let Inst{26-23} = 0b0110;
2353 let Inst{22-20} = 0b001;
2354 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2355 let Inst{7-6} = 0b00;
2356 let Inst{5-4} = 0b11;
2359 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2360 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2361 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2362 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]> {
2363 let Inst{31-27} = 0b11111;
2364 let Inst{26-23} = 0b0110;
2365 let Inst{22-20} = 0b011;
2366 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2367 let Inst{7-6} = 0b00;
2368 let Inst{5-4} = 0b00;
2371 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2372 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2373 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2374 (sra rGPR:$Rm, (i32 16))), (i32 16)))]> {
2375 let Inst{31-27} = 0b11111;
2376 let Inst{26-23} = 0b0110;
2377 let Inst{22-20} = 0b011;
2378 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2379 let Inst{7-6} = 0b00;
2380 let Inst{5-4} = 0b01;
2385 multiclass T2I_smla<string opc, PatFrag opnode> {
2387 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2388 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2389 [(set rGPR:$Rd, (add rGPR:$Ra,
2390 (opnode (sext_inreg rGPR:$Rn, i16),
2391 (sext_inreg rGPR:$Rm, i16))))]> {
2392 let Inst{31-27} = 0b11111;
2393 let Inst{26-23} = 0b0110;
2394 let Inst{22-20} = 0b001;
2395 let Inst{7-6} = 0b00;
2396 let Inst{5-4} = 0b00;
2400 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2401 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2402 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2403 (sra rGPR:$Rm, (i32 16)))))]> {
2404 let Inst{31-27} = 0b11111;
2405 let Inst{26-23} = 0b0110;
2406 let Inst{22-20} = 0b001;
2407 let Inst{7-6} = 0b00;
2408 let Inst{5-4} = 0b01;
2412 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2413 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2414 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2415 (sext_inreg rGPR:$Rm, i16))))]> {
2416 let Inst{31-27} = 0b11111;
2417 let Inst{26-23} = 0b0110;
2418 let Inst{22-20} = 0b001;
2419 let Inst{7-6} = 0b00;
2420 let Inst{5-4} = 0b10;
2424 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2425 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2426 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2427 (sra rGPR:$Rm, (i32 16)))))]> {
2428 let Inst{31-27} = 0b11111;
2429 let Inst{26-23} = 0b0110;
2430 let Inst{22-20} = 0b001;
2431 let Inst{7-6} = 0b00;
2432 let Inst{5-4} = 0b11;
2436 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2437 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2438 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2439 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]> {
2440 let Inst{31-27} = 0b11111;
2441 let Inst{26-23} = 0b0110;
2442 let Inst{22-20} = 0b011;
2443 let Inst{7-6} = 0b00;
2444 let Inst{5-4} = 0b00;
2448 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2449 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2450 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2451 (sra rGPR:$Rm, (i32 16))), (i32 16))))]> {
2452 let Inst{31-27} = 0b11111;
2453 let Inst{26-23} = 0b0110;
2454 let Inst{22-20} = 0b011;
2455 let Inst{7-6} = 0b00;
2456 let Inst{5-4} = 0b01;
2460 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2461 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2463 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2464 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2465 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2466 [/* For disassembly only; pattern left blank */]>;
2467 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2468 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2469 [/* For disassembly only; pattern left blank */]>;
2470 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2471 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2472 [/* For disassembly only; pattern left blank */]>;
2473 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2474 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2475 [/* For disassembly only; pattern left blank */]>;
2477 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2478 // These are for disassembly only.
2480 def t2SMUAD: T2ThreeReg_mac<
2481 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2482 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []> {
2483 let Inst{15-12} = 0b1111;
2485 def t2SMUADX:T2ThreeReg_mac<
2486 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2487 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []> {
2488 let Inst{15-12} = 0b1111;
2490 def t2SMUSD: T2ThreeReg_mac<
2491 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2492 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []> {
2493 let Inst{15-12} = 0b1111;
2495 def t2SMUSDX:T2ThreeReg_mac<
2496 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2497 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []> {
2498 let Inst{15-12} = 0b1111;
2500 def t2SMLAD : T2ThreeReg_mac<
2501 0, 0b010, 0b0000, (outs rGPR:$Rd),
2502 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2503 "\t$Rd, $Rn, $Rm, $Ra", []>;
2504 def t2SMLADX : T2FourReg_mac<
2505 0, 0b010, 0b0001, (outs rGPR:$Rd),
2506 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2507 "\t$Rd, $Rn, $Rm, $Ra", []>;
2508 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2509 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2510 "\t$Rd, $Rn, $Rm, $Ra", []>;
2511 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2512 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2513 "\t$Rd, $Rn, $Rm, $Ra", []>;
2514 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2515 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2516 "\t$Ra, $Rd, $Rm, $Rn", []>;
2517 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2518 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2519 "\t$Ra, $Rd, $Rm, $Rn", []>;
2520 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2521 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2522 "\t$Ra, $Rd, $Rm, $Rn", []>;
2523 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2524 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2525 "\t$Ra, $Rd, $Rm, $Rn", []>;
2527 //===----------------------------------------------------------------------===//
2528 // Misc. Arithmetic Instructions.
2531 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2532 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2533 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2534 let Inst{31-27} = 0b11111;
2535 let Inst{26-22} = 0b01010;
2536 let Inst{21-20} = op1;
2537 let Inst{15-12} = 0b1111;
2538 let Inst{7-6} = 0b10;
2539 let Inst{5-4} = op2;
2543 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2544 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2546 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2547 "rbit", "\t$Rd, $Rm",
2548 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2550 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2551 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2553 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2554 "rev16", ".w\t$Rd, $Rm",
2556 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF),
2557 (or (and (shl rGPR:$Rm, (i32 8)), 0xFF00),
2558 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF0000),
2559 (and (shl rGPR:$Rm, (i32 8)), 0xFF000000)))))]>;
2561 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2562 "revsh", ".w\t$Rd, $Rm",
2565 (or (srl (and rGPR:$Rm, 0xFF00), (i32 8)),
2566 (shl rGPR:$Rm, (i32 8))), i16))]>;
2568 def t2PKHBT : T2ThreeReg<
2569 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2570 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2571 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2572 (and (shl rGPR:$Rm, lsl_amt:$sh),
2574 Requires<[HasT2ExtractPack, IsThumb2]> {
2575 let Inst{31-27} = 0b11101;
2576 let Inst{26-25} = 0b01;
2577 let Inst{24-20} = 0b01100;
2578 let Inst{5} = 0; // BT form
2582 let Inst{14-12} = sh{7-5};
2583 let Inst{7-6} = sh{4-3};
2586 // Alternate cases for PKHBT where identities eliminate some nodes.
2587 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2588 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2589 Requires<[HasT2ExtractPack, IsThumb2]>;
2590 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2591 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2592 Requires<[HasT2ExtractPack, IsThumb2]>;
2594 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2595 // will match the pattern below.
2596 def t2PKHTB : T2ThreeReg<
2597 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2598 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2599 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2600 (and (sra rGPR:$Rm, asr_amt:$sh),
2602 Requires<[HasT2ExtractPack, IsThumb2]> {
2603 let Inst{31-27} = 0b11101;
2604 let Inst{26-25} = 0b01;
2605 let Inst{24-20} = 0b01100;
2606 let Inst{5} = 1; // TB form
2610 let Inst{14-12} = sh{7-5};
2611 let Inst{7-6} = sh{4-3};
2614 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2615 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2616 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2617 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2618 Requires<[HasT2ExtractPack, IsThumb2]>;
2619 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2620 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2621 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2622 Requires<[HasT2ExtractPack, IsThumb2]>;
2624 //===----------------------------------------------------------------------===//
2625 // Comparison Instructions...
2627 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2628 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2629 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2631 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_imm:$imm),
2632 (t2CMPri GPR:$lhs, t2_so_imm:$imm)>;
2633 def : T2Pat<(ARMcmpZ GPR:$lhs, rGPR:$rhs),
2634 (t2CMPrr GPR:$lhs, rGPR:$rhs)>;
2635 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_reg:$rhs),
2636 (t2CMPrs GPR:$lhs, t2_so_reg:$rhs)>;
2638 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2639 // Compare-to-zero still works out, just not the relationals
2640 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2641 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2642 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2643 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2644 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2646 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2647 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2649 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2650 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2652 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2653 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2654 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2655 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2656 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2657 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2659 // Conditional moves
2660 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2661 // a two-value operand where a dag node expects two operands. :(
2662 let neverHasSideEffects = 1 in {
2663 def t2MOVCCr : T2TwoReg<
2664 (outs rGPR:$Rd), (ins rGPR:$false, rGPR:$Rm), IIC_iCMOVr,
2665 "mov", ".w\t$Rd, $Rm",
2666 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2667 RegConstraint<"$false = $Rd"> {
2668 let Inst{31-27} = 0b11101;
2669 let Inst{26-25} = 0b01;
2670 let Inst{24-21} = 0b0010;
2671 let Inst{20} = 0; // The S bit.
2672 let Inst{19-16} = 0b1111; // Rn
2673 let Inst{14-12} = 0b000;
2674 let Inst{7-4} = 0b0000;
2677 let isMoveImm = 1 in
2678 def t2MOVCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2679 IIC_iCMOVi, "mov", ".w\t$Rd, $imm",
2680 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2681 RegConstraint<"$false = $Rd"> {
2682 let Inst{31-27} = 0b11110;
2684 let Inst{24-21} = 0b0010;
2685 let Inst{20} = 0; // The S bit.
2686 let Inst{19-16} = 0b1111; // Rn
2690 let isMoveImm = 1 in
2691 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, i32imm:$imm),
2693 "movw", "\t$Rd, $imm", []>,
2694 RegConstraint<"$false = $Rd"> {
2695 let Inst{31-27} = 0b11110;
2697 let Inst{24-21} = 0b0010;
2698 let Inst{20} = 0; // The S bit.
2704 let Inst{11-8} = Rd;
2705 let Inst{19-16} = imm{15-12};
2706 let Inst{26} = imm{11};
2707 let Inst{14-12} = imm{10-8};
2708 let Inst{7-0} = imm{7-0};
2711 let isMoveImm = 1 in
2712 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2713 (ins rGPR:$false, i32imm:$src, pred:$p),
2714 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2716 let isMoveImm = 1 in
2717 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2718 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2719 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2720 imm:$cc, CCR:$ccr))*/]>,
2721 RegConstraint<"$false = $Rd"> {
2722 let Inst{31-27} = 0b11110;
2724 let Inst{24-21} = 0b0011;
2725 let Inst{20} = 0; // The S bit.
2726 let Inst{19-16} = 0b1111; // Rn
2730 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2731 string opc, string asm, list<dag> pattern>
2732 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2733 let Inst{31-27} = 0b11101;
2734 let Inst{26-25} = 0b01;
2735 let Inst{24-21} = 0b0010;
2736 let Inst{20} = 0; // The S bit.
2737 let Inst{19-16} = 0b1111; // Rn
2738 let Inst{5-4} = opcod; // Shift type.
2740 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2741 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2742 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2743 RegConstraint<"$false = $Rd">;
2744 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2745 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2746 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2747 RegConstraint<"$false = $Rd">;
2748 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2749 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2750 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2751 RegConstraint<"$false = $Rd">;
2752 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2753 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2754 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2755 RegConstraint<"$false = $Rd">;
2756 } // neverHasSideEffects
2758 //===----------------------------------------------------------------------===//
2759 // Atomic operations intrinsics
2762 // memory barriers protect the atomic sequences
2763 let hasSideEffects = 1 in {
2764 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2765 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2766 Requires<[IsThumb, HasDB]> {
2768 let Inst{31-4} = 0xf3bf8f5;
2769 let Inst{3-0} = opt;
2773 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2775 [/* For disassembly only; pattern left blank */]>,
2776 Requires<[IsThumb, HasDB]> {
2778 let Inst{31-4} = 0xf3bf8f4;
2779 let Inst{3-0} = opt;
2782 // ISB has only full system option -- for disassembly only
2783 def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
2784 [/* For disassembly only; pattern left blank */]>,
2785 Requires<[IsThumb2, HasV7]> {
2786 let Inst{31-4} = 0xf3bf8f6;
2787 let Inst{3-0} = 0b1111;
2790 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2791 InstrItinClass itin, string opc, string asm, string cstr,
2792 list<dag> pattern, bits<4> rt2 = 0b1111>
2793 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2794 let Inst{31-27} = 0b11101;
2795 let Inst{26-20} = 0b0001101;
2796 let Inst{11-8} = rt2;
2797 let Inst{7-6} = 0b01;
2798 let Inst{5-4} = opcod;
2799 let Inst{3-0} = 0b1111;
2803 let Inst{19-16} = Rn;
2804 let Inst{15-12} = Rt;
2806 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2807 InstrItinClass itin, string opc, string asm, string cstr,
2808 list<dag> pattern, bits<4> rt2 = 0b1111>
2809 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2810 let Inst{31-27} = 0b11101;
2811 let Inst{26-20} = 0b0001100;
2812 let Inst{11-8} = rt2;
2813 let Inst{7-6} = 0b01;
2814 let Inst{5-4} = opcod;
2819 let Inst{11-8} = Rd;
2820 let Inst{19-16} = Rn;
2821 let Inst{15-12} = Rt;
2824 let mayLoad = 1 in {
2825 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2826 Size4Bytes, NoItinerary, "ldrexb", "\t$Rt, [$Rn]",
2828 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2829 Size4Bytes, NoItinerary, "ldrexh", "\t$Rt, [$Rn]",
2831 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2832 Size4Bytes, NoItinerary,
2833 "ldrex", "\t$Rt, [$Rn]", "",
2835 let Inst{31-27} = 0b11101;
2836 let Inst{26-20} = 0b0000101;
2837 let Inst{11-8} = 0b1111;
2838 let Inst{7-0} = 0b00000000; // imm8 = 0
2840 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2), (ins rGPR:$Rn),
2841 AddrModeNone, Size4Bytes, NoItinerary,
2842 "ldrexd", "\t$Rt, $Rt2, [$Rn]", "",
2845 let Inst{11-8} = Rt2;
2849 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2850 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2851 AddrModeNone, Size4Bytes, NoItinerary,
2852 "strexb", "\t$Rd, $Rt, [$Rn]", "", []>;
2853 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2854 AddrModeNone, Size4Bytes, NoItinerary,
2855 "strexh", "\t$Rd, $Rt, [$Rn]", "", []>;
2856 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2857 AddrModeNone, Size4Bytes, NoItinerary,
2858 "strex", "\t$Rd, $Rt, [$Rn]", "",
2860 let Inst{31-27} = 0b11101;
2861 let Inst{26-20} = 0b0000100;
2862 let Inst{7-0} = 0b00000000; // imm8 = 0
2864 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2865 (ins rGPR:$Rt, rGPR:$Rt2, rGPR:$Rn),
2866 AddrModeNone, Size4Bytes, NoItinerary,
2867 "strexd", "\t$Rd, $Rt, $Rt2, [$Rn]", "", [],
2870 let Inst{11-8} = Rt2;
2874 // Clear-Exclusive is for disassembly only.
2875 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2876 [/* For disassembly only; pattern left blank */]>,
2877 Requires<[IsARM, HasV7]> {
2878 let Inst{31-20} = 0xf3b;
2879 let Inst{15-14} = 0b10;
2881 let Inst{7-4} = 0b0010;
2884 //===----------------------------------------------------------------------===//
2888 // __aeabi_read_tp preserves the registers r1-r3.
2890 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
2891 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2892 "bl\t__aeabi_read_tp",
2893 [(set R0, ARMthread_pointer)]> {
2894 let Inst{31-27} = 0b11110;
2895 let Inst{15-14} = 0b11;
2900 //===----------------------------------------------------------------------===//
2901 // SJLJ Exception handling intrinsics
2902 // eh_sjlj_setjmp() is an instruction sequence to store the return
2903 // address and save #0 in R0 for the non-longjmp case.
2904 // Since by its nature we may be coming from some other function to get
2905 // here, and we're using the stack frame for the containing function to
2906 // save/restore registers, we can't keep anything live in regs across
2907 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2908 // when we get here from a longjmp(). We force everthing out of registers
2909 // except for our own input by listing the relevant registers in Defs. By
2910 // doing so, we also cause the prologue/epilogue code to actively preserve
2911 // all of the callee-saved resgisters, which is exactly what we want.
2912 // $val is a scratch register for our use.
2914 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2915 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2916 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2917 D31 ], hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2918 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2919 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2920 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2921 Requires<[IsThumb2, HasVFP2]>;
2925 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2926 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2927 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2928 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2929 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2930 Requires<[IsThumb2, NoVFP]>;
2934 //===----------------------------------------------------------------------===//
2935 // Control-Flow Instructions
2938 // FIXME: remove when we have a way to marking a MI with these properties.
2939 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2941 // FIXME: Should pc be an implicit operand like PICADD, etc?
2942 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2943 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2944 def t2LDMIA_RET: T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2945 reglist:$regs, variable_ops),
2947 "ldmia${p}.w\t$Rn!, $regs",
2952 let Inst{31-27} = 0b11101;
2953 let Inst{26-25} = 0b00;
2954 let Inst{24-23} = 0b01; // Increment After
2956 let Inst{21} = 1; // Writeback
2958 let Inst{19-16} = Rn;
2959 let Inst{15-0} = regs;
2962 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2963 let isPredicable = 1 in
2964 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2966 [(br bb:$target)]> {
2967 let Inst{31-27} = 0b11110;
2968 let Inst{15-14} = 0b10;
2972 let Inst{26} = target{19};
2973 let Inst{11} = target{18};
2974 let Inst{13} = target{17};
2975 let Inst{21-16} = target{16-11};
2976 let Inst{10-0} = target{10-0};
2979 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2980 def t2BR_JT : tPseudoInst<(outs),
2981 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
2982 SizeSpecial, IIC_Br,
2983 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
2985 // FIXME: Add a non-pc based case that can be predicated.
2986 def t2TBB_JT : tPseudoInst<(outs),
2987 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2988 SizeSpecial, IIC_Br, []>;
2990 def t2TBH_JT : tPseudoInst<(outs),
2991 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2992 SizeSpecial, IIC_Br, []>;
2994 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
2995 "tbb", "\t[$Rn, $Rm]", []> {
2998 let Inst{27-20} = 0b10001101;
2999 let Inst{19-16} = Rn;
3000 let Inst{15-5} = 0b11110000000;
3001 let Inst{4} = 0; // B form
3005 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3006 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3009 let Inst{27-20} = 0b10001101;
3010 let Inst{19-16} = Rn;
3011 let Inst{15-5} = 0b11110000000;
3012 let Inst{4} = 1; // H form
3015 } // isNotDuplicable, isIndirectBranch
3017 } // isBranch, isTerminator, isBarrier
3019 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3020 // a two-value operand where a dag node expects two operands. :(
3021 let isBranch = 1, isTerminator = 1 in
3022 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3024 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3025 let Inst{31-27} = 0b11110;
3026 let Inst{15-14} = 0b10;
3030 let Inst{25-22} = p;
3033 let Inst{26} = target{20};
3034 let Inst{11} = target{19};
3035 let Inst{13} = target{18};
3036 let Inst{21-16} = target{17-12};
3037 let Inst{10-0} = target{11-1};
3042 let Defs = [ITSTATE] in
3043 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3044 AddrModeNone, Size2Bytes, IIC_iALUx,
3045 "it$mask\t$cc", "", []> {
3046 // 16-bit instruction.
3047 let Inst{31-16} = 0x0000;
3048 let Inst{15-8} = 0b10111111;
3053 let Inst{3-0} = mask;
3056 // Branch and Exchange Jazelle -- for disassembly only
3058 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3059 [/* For disassembly only; pattern left blank */]> {
3060 let Inst{31-27} = 0b11110;
3062 let Inst{25-20} = 0b111100;
3063 let Inst{15-14} = 0b10;
3067 let Inst{19-16} = func;
3070 // Change Processor State is a system instruction -- for disassembly only.
3071 // The singleton $opt operand contains the following information:
3072 // opt{4-0} = mode from Inst{4-0}
3073 // opt{5} = changemode from Inst{17}
3074 // opt{8-6} = AIF from Inst{8-6}
3075 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
3076 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
3077 [/* For disassembly only; pattern left blank */]> {
3078 let Inst{31-27} = 0b11110;
3080 let Inst{25-20} = 0b111010;
3081 let Inst{15-14} = 0b10;
3087 let Inst{4-0} = opt{4-0};
3090 let Inst{8} = opt{5};
3093 let Inst{5} = opt{6};
3096 let Inst{6} = opt{7};
3099 let Inst{7} = opt{8};
3102 let Inst{10-9} = opt{10-9};
3105 // A6.3.4 Branches and miscellaneous control
3106 // Table A6-14 Change Processor State, and hint instructions
3107 // Helper class for disassembly only.
3108 class T2I_hint<bits<8> op7_0, string opc, string asm>
3109 : T2I<(outs), (ins), NoItinerary, opc, asm,
3110 [/* For disassembly only; pattern left blank */]> {
3111 let Inst{31-20} = 0xf3a;
3112 let Inst{15-14} = 0b10;
3114 let Inst{10-8} = 0b000;
3115 let Inst{7-0} = op7_0;
3118 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3119 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3120 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3121 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3122 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3124 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
3125 [/* For disassembly only; pattern left blank */]> {
3126 let Inst{31-20} = 0xf3a;
3127 let Inst{15-14} = 0b10;
3129 let Inst{10-8} = 0b000;
3130 let Inst{7-4} = 0b1111;
3133 let Inst{3-0} = opt;
3136 // Secure Monitor Call is a system instruction -- for disassembly only
3137 // Option = Inst{19-16}
3138 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
3139 [/* For disassembly only; pattern left blank */]> {
3140 let Inst{31-27} = 0b11110;
3141 let Inst{26-20} = 0b1111111;
3142 let Inst{15-12} = 0b1000;
3145 let Inst{19-16} = opt;
3148 class T2SRS<bits<12> op31_20,
3149 dag oops, dag iops, InstrItinClass itin,
3150 string opc, string asm, list<dag> pattern>
3151 : T2I<oops, iops, itin, opc, asm, pattern> {
3152 let Inst{31-20} = op31_20{11-0};
3155 let Inst{4-0} = mode{4-0};
3158 // Store Return State is a system instruction -- for disassembly only
3159 def t2SRSDBW : T2SRS<0b111010000010,
3160 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3161 [/* For disassembly only; pattern left blank */]>;
3162 def t2SRSDB : T2SRS<0b111010000000,
3163 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3164 [/* For disassembly only; pattern left blank */]>;
3165 def t2SRSIAW : T2SRS<0b111010011010,
3166 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3167 [/* For disassembly only; pattern left blank */]>;
3168 def t2SRSIA : T2SRS<0b111010011000,
3169 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3170 [/* For disassembly only; pattern left blank */]>;
3172 // Return From Exception is a system instruction -- for disassembly only
3174 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3175 string opc, string asm, list<dag> pattern>
3176 : T2I<oops, iops, itin, opc, asm, pattern> {
3177 let Inst{31-20} = op31_20{11-0};
3180 let Inst{19-16} = Rn;
3183 def t2RFEDBW : T2RFE<0b111010000011,
3184 (outs), (ins rGPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3185 [/* For disassembly only; pattern left blank */]>;
3186 def t2RFEDB : T2RFE<0b111010000001,
3187 (outs), (ins rGPR:$Rn), NoItinerary, "rfeab", "\t$Rn",
3188 [/* For disassembly only; pattern left blank */]>;
3189 def t2RFEIAW : T2RFE<0b111010011011,
3190 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3191 [/* For disassembly only; pattern left blank */]>;
3192 def t2RFEIA : T2RFE<0b111010011001,
3193 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3194 [/* For disassembly only; pattern left blank */]>;
3196 //===----------------------------------------------------------------------===//
3197 // Non-Instruction Patterns
3200 // 32-bit immediate using movw + movt.
3201 // This is a single pseudo instruction to make it re-materializable.
3202 // FIXME: Remove this when we can do generalized remat.
3203 let isReMaterializable = 1, isMoveImm = 1 in
3204 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3205 [(set rGPR:$dst, (i32 imm:$src))]>,
3206 Requires<[IsThumb, HasV6T2]>;
3208 // ConstantPool, GlobalAddress, and JumpTable
3209 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3210 Requires<[IsThumb2, DontUseMovt]>;
3211 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3212 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3213 Requires<[IsThumb2, UseMovt]>;
3215 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3216 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3218 // Pseudo instruction that combines ldr from constpool and add pc. This should
3219 // be expanded into two instructions late to allow if-conversion and
3221 let canFoldAsLoad = 1, isReMaterializable = 1 in
3222 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3224 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3226 Requires<[IsThumb2]>;
3228 //===----------------------------------------------------------------------===//
3229 // Move between special register and ARM core register -- for disassembly only
3232 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3233 dag oops, dag iops, InstrItinClass itin,
3234 string opc, string asm, list<dag> pattern>
3235 : T2I<oops, iops, itin, opc, asm, pattern> {
3236 let Inst{31-20} = op31_20{11-0};
3237 let Inst{15-14} = op15_14{1-0};
3238 let Inst{12} = op12{0};
3241 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3242 dag oops, dag iops, InstrItinClass itin,
3243 string opc, string asm, list<dag> pattern>
3244 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3246 let Inst{11-8} = Rd;
3249 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3250 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3251 [/* For disassembly only; pattern left blank */]>;
3252 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3253 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3254 [/* For disassembly only; pattern left blank */]>;
3256 class T2MSR<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3257 dag oops, dag iops, InstrItinClass itin,
3258 string opc, string asm, list<dag> pattern>
3259 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3262 let Inst{19-16} = Rn;
3263 let Inst{11-8} = mask;
3266 def t2MSR : T2MSR<0b111100111000, 0b10, 0,
3267 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3269 [/* For disassembly only; pattern left blank */]>;
3270 def t2MSRsys : T2MSR<0b111100111001, 0b10, 0,
3271 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3273 [/* For disassembly only; pattern left blank */]>;