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 = "getT2AddrModeImm12OpValue";
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";
148 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
149 def t2addrmode_imm8s4 : Operand<i32> {
150 let PrintMethod = "printT2AddrModeImm8s4Operand";
151 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
154 def t2am_imm8s4_offset : Operand<i32> {
155 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
158 // t2addrmode_so_reg := reg + (reg << imm2)
159 def t2addrmode_so_reg : Operand<i32>,
160 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
161 let PrintMethod = "printT2AddrModeSoRegOperand";
162 string EncoderMethod = "getT2AddrModeSORegOpValue";
163 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
167 //===----------------------------------------------------------------------===//
168 // Multiclass helpers...
172 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
173 string opc, string asm, list<dag> pattern>
174 : T2I<oops, iops, itin, opc, asm, pattern> {
178 let Inst{11-8} = Rd{3-0};
179 let Inst{26} = imm{11};
180 let Inst{14-12} = imm{10-8};
181 let Inst{7-0} = imm{7-0};
185 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
186 string opc, string asm, list<dag> pattern>
187 : T2sI<oops, iops, itin, opc, asm, pattern> {
192 let Inst{11-8} = Rd{3-0};
193 let Inst{26} = imm{11};
194 let Inst{14-12} = imm{10-8};
195 let Inst{7-0} = imm{7-0};
198 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
199 string opc, string asm, list<dag> pattern>
200 : T2I<oops, iops, itin, opc, asm, pattern> {
204 let Inst{19-16} = Rn{3-0};
205 let Inst{26} = imm{11};
206 let Inst{14-12} = imm{10-8};
207 let Inst{7-0} = imm{7-0};
211 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
212 string opc, string asm, list<dag> pattern>
213 : T2I<oops, iops, itin, opc, asm, pattern> {
217 let Inst{11-8} = Rd{3-0};
218 let Inst{3-0} = ShiftedRm{3-0};
219 let Inst{5-4} = ShiftedRm{6-5};
220 let Inst{14-12} = ShiftedRm{11-9};
221 let Inst{7-6} = ShiftedRm{8-7};
224 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
225 string opc, string asm, list<dag> pattern>
226 : T2I<oops, iops, itin, opc, asm, pattern> {
230 let Inst{11-8} = Rd{3-0};
231 let Inst{3-0} = ShiftedRm{3-0};
232 let Inst{5-4} = ShiftedRm{6-5};
233 let Inst{14-12} = ShiftedRm{11-9};
234 let Inst{7-6} = ShiftedRm{8-7};
237 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
238 string opc, string asm, list<dag> pattern>
239 : T2I<oops, iops, itin, opc, asm, pattern> {
243 let Inst{19-16} = Rn{3-0};
244 let Inst{3-0} = ShiftedRm{3-0};
245 let Inst{5-4} = ShiftedRm{6-5};
246 let Inst{14-12} = ShiftedRm{11-9};
247 let Inst{7-6} = ShiftedRm{8-7};
250 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
251 string opc, string asm, list<dag> pattern>
252 : T2I<oops, iops, itin, opc, asm, pattern> {
256 let Inst{11-8} = Rd{3-0};
257 let Inst{3-0} = Rm{3-0};
260 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
261 string opc, string asm, list<dag> pattern>
262 : T2sI<oops, iops, itin, opc, asm, pattern> {
266 let Inst{11-8} = Rd{3-0};
267 let Inst{3-0} = Rm{3-0};
270 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
271 string opc, string asm, list<dag> pattern>
272 : T2I<oops, iops, itin, opc, asm, pattern> {
276 let Inst{19-16} = Rn{3-0};
277 let Inst{3-0} = Rm{3-0};
281 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
282 string opc, string asm, list<dag> pattern>
283 : T2I<oops, iops, itin, opc, asm, pattern> {
287 let Inst{11-8} = Rd{3-0};
288 let Inst{3-0} = Rm{3-0};
291 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
292 string opc, string asm, list<dag> pattern>
293 : T2sI<oops, iops, itin, opc, asm, pattern> {
298 let Inst{11-8} = Rd{3-0};
299 let Inst{19-16} = Rn{3-0};
300 let Inst{26} = imm{11};
301 let Inst{14-12} = imm{10-8};
302 let Inst{7-0} = imm{7-0};
305 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
306 string opc, string asm, list<dag> pattern>
307 : T2I<oops, iops, itin, opc, asm, pattern> {
312 let Inst{11-8} = Rd{3-0};
313 let Inst{3-0} = Rm{3-0};
314 let Inst{14-12} = imm{4-2};
315 let Inst{7-6} = imm{1-0};
318 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
319 string opc, string asm, list<dag> pattern>
320 : T2sI<oops, iops, itin, opc, asm, pattern> {
325 let Inst{11-8} = Rd{3-0};
326 let Inst{3-0} = Rm{3-0};
327 let Inst{14-12} = imm{4-2};
328 let Inst{7-6} = imm{1-0};
331 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
332 string opc, string asm, list<dag> pattern>
333 : T2I<oops, iops, itin, opc, asm, pattern> {
338 let Inst{11-8} = Rd{3-0};
339 let Inst{19-16} = Rn{3-0};
340 let Inst{3-0} = Rm{3-0};
343 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
344 string opc, string asm, list<dag> pattern>
345 : T2sI<oops, iops, itin, opc, asm, pattern> {
350 let Inst{11-8} = Rd{3-0};
351 let Inst{19-16} = Rn{3-0};
352 let Inst{3-0} = Rm{3-0};
355 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
356 string opc, string asm, list<dag> pattern>
357 : T2I<oops, iops, itin, opc, asm, pattern> {
362 let Inst{11-8} = Rd{3-0};
363 let Inst{19-16} = Rn{3-0};
364 let Inst{3-0} = ShiftedRm{3-0};
365 let Inst{5-4} = ShiftedRm{6-5};
366 let Inst{14-12} = ShiftedRm{11-9};
367 let Inst{7-6} = ShiftedRm{8-7};
370 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
371 string opc, string asm, list<dag> pattern>
372 : T2sI<oops, iops, itin, opc, asm, pattern> {
377 let Inst{11-8} = Rd{3-0};
378 let Inst{19-16} = Rn{3-0};
379 let Inst{3-0} = ShiftedRm{3-0};
380 let Inst{5-4} = ShiftedRm{6-5};
381 let Inst{14-12} = ShiftedRm{11-9};
382 let Inst{7-6} = ShiftedRm{8-7};
385 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
386 string opc, string asm, list<dag> pattern>
387 : T2I<oops, iops, itin, opc, asm, pattern> {
393 let Inst{11-8} = Rd{3-0};
394 let Inst{19-16} = Rn{3-0};
395 let Inst{3-0} = Rm{3-0};
396 let Inst{15-12} = Ra{3-0};
400 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
401 /// unary operation that produces a value. These are predicable and can be
402 /// changed to modify CPSR.
403 multiclass T2I_un_irs<bits<4> opcod, string opc,
404 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
405 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
407 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
409 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
410 let isAsCheapAsAMove = Cheap;
411 let isReMaterializable = ReMat;
412 let Inst{31-27} = 0b11110;
414 let Inst{24-21} = opcod;
415 let Inst{20} = ?; // The S bit.
416 let Inst{19-16} = 0b1111; // Rn
420 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
422 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
423 let Inst{31-27} = 0b11101;
424 let Inst{26-25} = 0b01;
425 let Inst{24-21} = opcod;
426 let Inst{20} = ?; // The S bit.
427 let Inst{19-16} = 0b1111; // Rn
428 let Inst{14-12} = 0b000; // imm3
429 let Inst{7-6} = 0b00; // imm2
430 let Inst{5-4} = 0b00; // type
433 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
434 opc, ".w\t$Rd, $ShiftedRm",
435 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
436 let Inst{31-27} = 0b11101;
437 let Inst{26-25} = 0b01;
438 let Inst{24-21} = opcod;
439 let Inst{20} = ?; // The S bit.
440 let Inst{19-16} = 0b1111; // Rn
444 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
445 /// binary operation that produces a value. These are predicable and can be
446 /// changed to modify CPSR.
447 multiclass T2I_bin_irs<bits<4> opcod, string opc,
448 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
449 PatFrag opnode, bit Commutable = 0, string wide = ""> {
451 def ri : T2sTwoRegImm<
452 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
453 opc, "\t$Rd, $Rn, $imm",
454 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
455 let Inst{31-27} = 0b11110;
457 let Inst{24-21} = opcod;
458 let Inst{20} = ?; // The S bit.
462 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
463 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
464 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
465 let isCommutable = Commutable;
466 let Inst{31-27} = 0b11101;
467 let Inst{26-25} = 0b01;
468 let Inst{24-21} = opcod;
469 let Inst{20} = ?; // The S bit.
470 let Inst{14-12} = 0b000; // imm3
471 let Inst{7-6} = 0b00; // imm2
472 let Inst{5-4} = 0b00; // type
475 def rs : T2sTwoRegShiftedReg<
476 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
477 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
478 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
479 let Inst{31-27} = 0b11101;
480 let Inst{26-25} = 0b01;
481 let Inst{24-21} = opcod;
482 let Inst{20} = ?; // The S bit.
486 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
487 // the ".w" prefix to indicate that they are wide.
488 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
489 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
490 PatFrag opnode, bit Commutable = 0> :
491 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w">;
493 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
494 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
495 /// it is equivalent to the T2I_bin_irs counterpart.
496 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
498 def ri : T2sTwoRegImm<
499 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
500 opc, ".w\t$Rd, $Rn, $imm",
501 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
502 let Inst{31-27} = 0b11110;
504 let Inst{24-21} = opcod;
505 let Inst{20} = ?; // The S bit.
509 def rr : T2sThreeReg<
510 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
511 opc, "\t$Rd, $Rn, $Rm",
512 [/* For disassembly only; pattern left blank */]> {
513 let Inst{31-27} = 0b11101;
514 let Inst{26-25} = 0b01;
515 let Inst{24-21} = opcod;
516 let Inst{20} = ?; // The S bit.
517 let Inst{14-12} = 0b000; // imm3
518 let Inst{7-6} = 0b00; // imm2
519 let Inst{5-4} = 0b00; // type
522 def rs : T2sTwoRegShiftedReg<
523 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
524 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
525 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
526 let Inst{31-27} = 0b11101;
527 let Inst{26-25} = 0b01;
528 let Inst{24-21} = opcod;
529 let Inst{20} = ?; // The S bit.
533 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
534 /// instruction modifies the CPSR register.
535 let Defs = [CPSR] in {
536 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
537 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
538 PatFrag opnode, bit Commutable = 0> {
540 def ri : T2TwoRegImm<
541 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
542 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
543 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
544 let Inst{31-27} = 0b11110;
546 let Inst{24-21} = opcod;
547 let Inst{20} = 1; // The S bit.
552 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
553 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $Rm",
554 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
555 let isCommutable = Commutable;
556 let Inst{31-27} = 0b11101;
557 let Inst{26-25} = 0b01;
558 let Inst{24-21} = opcod;
559 let Inst{20} = 1; // The S bit.
560 let Inst{14-12} = 0b000; // imm3
561 let Inst{7-6} = 0b00; // imm2
562 let Inst{5-4} = 0b00; // type
565 def rs : T2TwoRegShiftedReg<
566 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
567 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $ShiftedRm",
568 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
569 let Inst{31-27} = 0b11101;
570 let Inst{26-25} = 0b01;
571 let Inst{24-21} = opcod;
572 let Inst{20} = 1; // The S bit.
577 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
578 /// patterns for a binary operation that produces a value.
579 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
580 bit Commutable = 0> {
582 // The register-immediate version is re-materializable. This is useful
583 // in particular for taking the address of a local.
584 let isReMaterializable = 1 in {
585 def ri : T2sTwoRegImm<
586 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
587 opc, ".w\t$Rd, $Rn, $imm",
588 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
589 let Inst{31-27} = 0b11110;
592 let Inst{23-21} = op23_21;
593 let Inst{20} = 0; // The S bit.
598 def ri12 : T2TwoRegImm<
599 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
600 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
601 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
602 let Inst{31-27} = 0b11110;
605 let Inst{23-21} = op23_21;
606 let Inst{20} = 0; // The S bit.
610 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), IIC_iALUr,
611 opc, ".w\t$Rd, $Rn, $Rm",
612 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
613 let isCommutable = Commutable;
614 let Inst{31-27} = 0b11101;
615 let Inst{26-25} = 0b01;
617 let Inst{23-21} = op23_21;
618 let Inst{20} = 0; // The S bit.
619 let Inst{14-12} = 0b000; // imm3
620 let Inst{7-6} = 0b00; // imm2
621 let Inst{5-4} = 0b00; // type
624 def rs : T2sTwoRegShiftedReg<
625 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
626 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
627 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
628 let Inst{31-27} = 0b11101;
629 let Inst{26-25} = 0b01;
631 let Inst{23-21} = op23_21;
632 let Inst{20} = 0; // The S bit.
636 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
637 /// for a binary operation that produces a value and use the carry
638 /// bit. It's not predicable.
639 let Uses = [CPSR] in {
640 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
641 bit Commutable = 0> {
643 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
644 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
645 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
646 Requires<[IsThumb2]> {
647 let Inst{31-27} = 0b11110;
649 let Inst{24-21} = opcod;
650 let Inst{20} = 0; // The S bit.
654 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
655 opc, ".w\t$Rd, $Rn, $Rm",
656 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
657 Requires<[IsThumb2]> {
658 let isCommutable = Commutable;
659 let Inst{31-27} = 0b11101;
660 let Inst{26-25} = 0b01;
661 let Inst{24-21} = opcod;
662 let Inst{20} = 0; // The S bit.
663 let Inst{14-12} = 0b000; // imm3
664 let Inst{7-6} = 0b00; // imm2
665 let Inst{5-4} = 0b00; // type
668 def rs : T2sTwoRegShiftedReg<
669 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
670 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
671 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
672 Requires<[IsThumb2]> {
673 let Inst{31-27} = 0b11101;
674 let Inst{26-25} = 0b01;
675 let Inst{24-21} = opcod;
676 let Inst{20} = 0; // The S bit.
680 // Carry setting variants
681 let Defs = [CPSR] in {
682 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
683 bit Commutable = 0> {
685 def ri : T2sTwoRegImm<
686 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
687 opc, "\t$Rd, $Rn, $imm",
688 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
689 Requires<[IsThumb2]> {
690 let Inst{31-27} = 0b11110;
692 let Inst{24-21} = opcod;
693 let Inst{20} = 1; // The S bit.
697 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
698 opc, ".w\t$Rd, $Rn, $Rm",
699 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
700 Requires<[IsThumb2]> {
701 let isCommutable = Commutable;
702 let Inst{31-27} = 0b11101;
703 let Inst{26-25} = 0b01;
704 let Inst{24-21} = opcod;
705 let Inst{20} = 1; // The S bit.
706 let Inst{14-12} = 0b000; // imm3
707 let Inst{7-6} = 0b00; // imm2
708 let Inst{5-4} = 0b00; // type
711 def rs : T2sTwoRegShiftedReg<
712 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
713 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
714 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
715 Requires<[IsThumb2]> {
716 let Inst{31-27} = 0b11101;
717 let Inst{26-25} = 0b01;
718 let Inst{24-21} = opcod;
719 let Inst{20} = 1; // The S bit.
725 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
726 /// version is not needed since this is only for codegen.
727 let Defs = [CPSR] in {
728 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
730 def ri : T2TwoRegImm<
731 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
732 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
733 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
734 let Inst{31-27} = 0b11110;
736 let Inst{24-21} = opcod;
737 let Inst{20} = 1; // The S bit.
741 def rs : T2TwoRegShiftedReg<
742 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
743 IIC_iALUsi, !strconcat(opc, "s"), "\t$Rd, $Rn, $ShiftedRm",
744 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
745 let Inst{31-27} = 0b11101;
746 let Inst{26-25} = 0b01;
747 let Inst{24-21} = opcod;
748 let Inst{20} = 1; // The S bit.
753 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
754 // rotate operation that produces a value.
755 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
757 def ri : T2sTwoRegShiftImm<
758 (outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$imm), IIC_iMOVsi,
759 opc, ".w\t$Rd, $Rm, $imm",
760 [(set rGPR:$Rd, (opnode rGPR:$Rm, imm1_31:$imm))]> {
761 let Inst{31-27} = 0b11101;
762 let Inst{26-21} = 0b010010;
763 let Inst{19-16} = 0b1111; // Rn
764 let Inst{5-4} = opcod;
767 def rr : T2sThreeReg<
768 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
769 opc, ".w\t$Rd, $Rn, $Rm",
770 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
771 let Inst{31-27} = 0b11111;
772 let Inst{26-23} = 0b0100;
773 let Inst{22-21} = opcod;
774 let Inst{15-12} = 0b1111;
775 let Inst{7-4} = 0b0000;
779 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
780 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
781 /// a explicit result, only implicitly set CPSR.
782 let isCompare = 1, Defs = [CPSR] in {
783 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
784 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
787 def ri : T2OneRegCmpImm<
788 (outs), (ins GPR:$Rn, t2_so_imm:$imm), iii,
789 opc, ".w\t$Rn, $imm",
790 [(opnode GPR:$Rn, t2_so_imm:$imm)]> {
791 let Inst{31-27} = 0b11110;
793 let Inst{24-21} = opcod;
794 let Inst{20} = 1; // The S bit.
796 let Inst{11-8} = 0b1111; // Rd
799 def rr : T2TwoRegCmp<
800 (outs), (ins GPR:$lhs, rGPR:$rhs), iir,
801 opc, ".w\t$lhs, $rhs",
802 [(opnode GPR:$lhs, rGPR:$rhs)]> {
803 let Inst{31-27} = 0b11101;
804 let Inst{26-25} = 0b01;
805 let Inst{24-21} = opcod;
806 let Inst{20} = 1; // The S bit.
807 let Inst{14-12} = 0b000; // imm3
808 let Inst{11-8} = 0b1111; // Rd
809 let Inst{7-6} = 0b00; // imm2
810 let Inst{5-4} = 0b00; // type
813 def rs : T2OneRegCmpShiftedReg<
814 (outs), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
815 opc, ".w\t$Rn, $ShiftedRm",
816 [(opnode GPR:$Rn, t2_so_reg:$ShiftedRm)]> {
817 let Inst{31-27} = 0b11101;
818 let Inst{26-25} = 0b01;
819 let Inst{24-21} = opcod;
820 let Inst{20} = 1; // The S bit.
821 let Inst{11-8} = 0b1111; // Rd
826 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
827 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
828 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
829 def i12 : T2Ii12<(outs GPR:$Rt), (ins t2addrmode_imm12:$addr), iii,
830 opc, ".w\t$Rt, $addr",
831 [(set GPR:$Rt, (opnode t2addrmode_imm12:$addr))]> {
832 let Inst{31-27} = 0b11111;
833 let Inst{26-25} = 0b00;
834 let Inst{24} = signed;
836 let Inst{22-21} = opcod;
837 let Inst{20} = 1; // load
840 let Inst{15-12} = Rt{3-0};
843 let Inst{19-16} = addr{15-12}; // Rn
844 let Inst{11-0} = addr{11-0}; // imm
846 def i8 : T2Ii8 <(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), iii,
848 [(set GPR:$Rt, (opnode t2addrmode_imm8:$addr))]> {
849 let Inst{31-27} = 0b11111;
850 let Inst{26-25} = 0b00;
851 let Inst{24} = signed;
853 let Inst{22-21} = opcod;
854 let Inst{20} = 1; // load
856 // Offset: index==TRUE, wback==FALSE
857 let Inst{10} = 1; // The P bit.
858 let Inst{8} = 0; // The W bit.
861 let Inst{15-12} = Rt{3-0};
864 let Inst{19-16} = addr{12-9}; // Rn
865 let Inst{9} = addr{8}; // U
866 let Inst{7-0} = addr{7-0}; // imm
868 def s : T2Iso <(outs GPR:$Rt), (ins t2addrmode_so_reg:$addr), iis,
869 opc, ".w\t$Rt, $addr",
870 [(set GPR:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
871 let Inst{31-27} = 0b11111;
872 let Inst{26-25} = 0b00;
873 let Inst{24} = signed;
875 let Inst{22-21} = opcod;
876 let Inst{20} = 1; // load
877 let Inst{11-6} = 0b000000;
880 let Inst{15-12} = Rt{3-0};
883 let Inst{19-16} = addr{9-6}; // Rn
884 let Inst{3-0} = addr{5-2}; // Rm
885 let Inst{5-4} = addr{1-0}; // imm
888 // FIXME: Is the pci variant actually needed?
889 def pci : T2Ipc <(outs GPR:$Rt), (ins i32imm:$addr), iii,
890 opc, ".w\t$Rt, $addr",
891 [(set GPR:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
892 let isReMaterializable = 1;
893 let Inst{31-27} = 0b11111;
894 let Inst{26-25} = 0b00;
895 let Inst{24} = signed;
896 let Inst{23} = ?; // add = (U == '1')
897 let Inst{22-21} = opcod;
898 let Inst{20} = 1; // load
899 let Inst{19-16} = 0b1111; // Rn
903 let Inst{15-12} = Rt{3-0};
904 let Inst{11-0} = addr{11-0};
908 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
909 multiclass T2I_st<bits<2> opcod, string opc,
910 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
911 def i12 : T2Ii12<(outs), (ins GPR:$Rt, t2addrmode_imm12:$addr), iii,
912 opc, ".w\t$Rt, $addr",
913 [(opnode GPR:$Rt, t2addrmode_imm12:$addr)]> {
914 let Inst{31-27} = 0b11111;
915 let Inst{26-23} = 0b0001;
916 let Inst{22-21} = opcod;
917 let Inst{20} = 0; // !load
920 let Inst{19-16} = Rt{3-0};
923 let Inst{19-16} = addr{15-12}; // Rn
924 let Inst{11-0} = addr{11-0}; // imm
926 def i8 : T2Ii8 <(outs), (ins GPR:$Rt, t2addrmode_imm8:$addr), iii,
928 [(opnode GPR:$Rt, t2addrmode_imm8:$addr)]> {
929 let Inst{31-27} = 0b11111;
930 let Inst{26-23} = 0b0000;
931 let Inst{22-21} = opcod;
932 let Inst{20} = 0; // !load
934 // Offset: index==TRUE, wback==FALSE
935 let Inst{10} = 1; // The P bit.
936 let Inst{8} = 0; // The W bit.
939 let Inst{19-16} = Rt{3-0};
942 let Inst{19-16} = addr{12-9}; // Rn
943 let Inst{9} = addr{8}; // U
944 let Inst{7-0} = addr{7-0}; // imm
946 def s : T2Iso <(outs), (ins GPR:$Rt, t2addrmode_so_reg:$addr), iis,
947 opc, ".w\t$Rt, $addr",
948 [(opnode GPR:$Rt, t2addrmode_so_reg:$addr)]> {
949 let Inst{31-27} = 0b11111;
950 let Inst{26-23} = 0b0000;
951 let Inst{22-21} = opcod;
952 let Inst{20} = 0; // !load
953 let Inst{11-6} = 0b000000;
956 let Inst{15-12} = Rt{3-0};
959 let Inst{19-16} = addr{9-6}; // Rn
960 let Inst{3-0} = addr{5-2}; // Rm
961 let Inst{5-4} = addr{1-0}; // imm
965 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
966 /// register and one whose operand is a register rotated by 8/16/24.
967 multiclass T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> {
968 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
970 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
971 let Inst{31-27} = 0b11111;
972 let Inst{26-23} = 0b0100;
973 let Inst{22-20} = opcod;
974 let Inst{19-16} = 0b1111; // Rn
975 let Inst{15-12} = 0b1111;
977 let Inst{5-4} = 0b00; // rotate
979 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
980 opc, ".w\t$Rd, $Rm, ror $rot",
981 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]> {
982 let Inst{31-27} = 0b11111;
983 let Inst{26-23} = 0b0100;
984 let Inst{22-20} = opcod;
985 let Inst{19-16} = 0b1111; // Rn
986 let Inst{15-12} = 0b1111;
990 let Inst{5-4} = rot{1-0}; // rotate
994 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
995 multiclass T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
996 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
998 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>,
999 Requires<[HasT2ExtractPack, IsThumb2]> {
1000 let Inst{31-27} = 0b11111;
1001 let Inst{26-23} = 0b0100;
1002 let Inst{22-20} = opcod;
1003 let Inst{19-16} = 0b1111; // Rn
1004 let Inst{15-12} = 0b1111;
1006 let Inst{5-4} = 0b00; // rotate
1008 def r_rot : T2TwoReg<(outs rGPR:$dst), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1009 opc, "\t$dst, $Rm, ror $rot",
1010 [(set rGPR:$dst, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1011 Requires<[HasT2ExtractPack, IsThumb2]> {
1012 let Inst{31-27} = 0b11111;
1013 let Inst{26-23} = 0b0100;
1014 let Inst{22-20} = opcod;
1015 let Inst{19-16} = 0b1111; // Rn
1016 let Inst{15-12} = 0b1111;
1020 let Inst{5-4} = rot{1-0}; // rotate
1024 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1026 multiclass T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> {
1027 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1028 opc, "\t$Rd, $Rm", []> {
1029 let Inst{31-27} = 0b11111;
1030 let Inst{26-23} = 0b0100;
1031 let Inst{22-20} = opcod;
1032 let Inst{19-16} = 0b1111; // Rn
1033 let Inst{15-12} = 0b1111;
1035 let Inst{5-4} = 0b00; // rotate
1037 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1038 opc, "\t$Rd, $Rm, ror $rot", []> {
1039 let Inst{31-27} = 0b11111;
1040 let Inst{26-23} = 0b0100;
1041 let Inst{22-20} = opcod;
1042 let Inst{19-16} = 0b1111; // Rn
1043 let Inst{15-12} = 0b1111;
1047 let Inst{5-4} = rot{1-0}; // rotate
1051 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1052 /// register and one whose operand is a register rotated by 8/16/24.
1053 multiclass T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> {
1054 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1055 opc, "\t$Rd, $Rn, $Rm",
1056 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
1057 Requires<[HasT2ExtractPack, IsThumb2]> {
1058 let Inst{31-27} = 0b11111;
1059 let Inst{26-23} = 0b0100;
1060 let Inst{22-20} = opcod;
1061 let Inst{15-12} = 0b1111;
1063 let Inst{5-4} = 0b00; // rotate
1065 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1066 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot",
1067 [(set rGPR:$Rd, (opnode rGPR:$Rn,
1068 (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1069 Requires<[HasT2ExtractPack, IsThumb2]> {
1070 let Inst{31-27} = 0b11111;
1071 let Inst{26-23} = 0b0100;
1072 let Inst{22-20} = opcod;
1073 let Inst{15-12} = 0b1111;
1077 let Inst{5-4} = rot{1-0}; // rotate
1081 // DO variant - disassembly only, no pattern
1083 multiclass T2I_exta_rrot_DO<bits<3> opcod, string opc> {
1084 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1085 opc, "\t$Rd, $Rn, $Rm", []> {
1086 let Inst{31-27} = 0b11111;
1087 let Inst{26-23} = 0b0100;
1088 let Inst{22-20} = opcod;
1089 let Inst{15-12} = 0b1111;
1091 let Inst{5-4} = 0b00; // rotate
1093 def rr_rot : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1094 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot", []> {
1095 let Inst{31-27} = 0b11111;
1096 let Inst{26-23} = 0b0100;
1097 let Inst{22-20} = opcod;
1098 let Inst{15-12} = 0b1111;
1102 let Inst{5-4} = rot{1-0}; // rotate
1106 //===----------------------------------------------------------------------===//
1108 //===----------------------------------------------------------------------===//
1110 //===----------------------------------------------------------------------===//
1111 // Miscellaneous Instructions.
1114 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1115 string asm, list<dag> pattern>
1116 : T2XI<oops, iops, itin, asm, pattern> {
1120 let Inst{11-8} = Rd{3-0};
1121 let Inst{26} = label{11};
1122 let Inst{14-12} = label{10-8};
1123 let Inst{7-0} = label{7-0};
1126 // LEApcrel - Load a pc-relative address into a register without offending the
1128 let neverHasSideEffects = 1 in {
1129 let isReMaterializable = 1 in
1130 def t2LEApcrel : T2PCOneRegImm<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p), IIC_iALUi,
1131 "adr${p}.w\t$Rd, #$label", []> {
1132 let Inst{31-27} = 0b11110;
1133 let Inst{25-24} = 0b10;
1134 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1137 let Inst{19-16} = 0b1111; // Rn
1142 } // neverHasSideEffects
1143 def t2LEApcrelJT : T2PCOneRegImm<(outs rGPR:$Rd),
1144 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
1145 "adr${p}.w\t$Rd, #${label}_${id}", []> {
1146 let Inst{31-27} = 0b11110;
1147 let Inst{25-24} = 0b10;
1148 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1151 let Inst{19-16} = 0b1111; // Rn
1155 // ADD r, sp, {so_imm|i12}
1156 def t2ADDrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1157 IIC_iALUi, "add", ".w\t$Rd, $sp, $imm", []> {
1158 let Inst{31-27} = 0b11110;
1160 let Inst{24-21} = 0b1000;
1161 let Inst{20} = ?; // The S bit.
1162 let Inst{19-16} = 0b1101; // Rn = sp
1165 def t2ADDrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1166 IIC_iALUi, "addw", "\t$Rd, $sp, $imm", []> {
1167 let Inst{31-27} = 0b11110;
1169 let Inst{24-21} = 0b0000;
1170 let Inst{20} = 0; // The S bit.
1171 let Inst{19-16} = 0b1101; // Rn = sp
1175 // ADD r, sp, so_reg
1176 def t2ADDrSPs : T2sTwoRegShiftedReg<
1177 (outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$ShiftedRm),
1178 IIC_iALUsi, "add", ".w\t$Rd, $sp, $ShiftedRm", []> {
1179 let Inst{31-27} = 0b11101;
1180 let Inst{26-25} = 0b01;
1181 let Inst{24-21} = 0b1000;
1182 let Inst{20} = ?; // The S bit.
1183 let Inst{19-16} = 0b1101; // Rn = sp
1187 // SUB r, sp, {so_imm|i12}
1188 def t2SUBrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
1189 IIC_iALUi, "sub", ".w\t$Rd, $sp, $imm", []> {
1190 let Inst{31-27} = 0b11110;
1192 let Inst{24-21} = 0b1101;
1193 let Inst{20} = ?; // The S bit.
1194 let Inst{19-16} = 0b1101; // Rn = sp
1197 def t2SUBrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
1198 IIC_iALUi, "subw", "\t$Rd, $sp, $imm", []> {
1199 let Inst{31-27} = 0b11110;
1201 let Inst{24-21} = 0b0101;
1202 let Inst{20} = 0; // The S bit.
1203 let Inst{19-16} = 0b1101; // Rn = sp
1207 // SUB r, sp, so_reg
1208 def t2SUBrSPs : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_reg:$imm),
1210 "sub", "\t$Rd, $sp, $imm", []> {
1211 let Inst{31-27} = 0b11101;
1212 let Inst{26-25} = 0b01;
1213 let Inst{24-21} = 0b1101;
1214 let Inst{20} = ?; // The S bit.
1215 let Inst{19-16} = 0b1101; // Rn = sp
1219 // Signed and unsigned division on v7-M
1220 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1221 "sdiv", "\t$Rd, $Rn, $Rm",
1222 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
1223 Requires<[HasDivide, IsThumb2]> {
1224 let Inst{31-27} = 0b11111;
1225 let Inst{26-21} = 0b011100;
1227 let Inst{15-12} = 0b1111;
1228 let Inst{7-4} = 0b1111;
1231 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
1232 "udiv", "\t$Rd, $Rn, $Rm",
1233 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
1234 Requires<[HasDivide, IsThumb2]> {
1235 let Inst{31-27} = 0b11111;
1236 let Inst{26-21} = 0b011101;
1238 let Inst{15-12} = 0b1111;
1239 let Inst{7-4} = 0b1111;
1242 //===----------------------------------------------------------------------===//
1243 // Load / store Instructions.
1247 let canFoldAsLoad = 1, isReMaterializable = 1 in
1248 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
1249 UnOpFrag<(load node:$Src)>>;
1251 // Loads with zero extension
1252 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1253 UnOpFrag<(zextloadi16 node:$Src)>>;
1254 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1255 UnOpFrag<(zextloadi8 node:$Src)>>;
1257 // Loads with sign extension
1258 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1259 UnOpFrag<(sextloadi16 node:$Src)>>;
1260 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1261 UnOpFrag<(sextloadi8 node:$Src)>>;
1263 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1,
1264 isCodeGenOnly = 1 in { // $dst doesn't exist in asmstring?
1266 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
1267 (ins t2addrmode_imm8s4:$addr),
1268 IIC_iLoad_d_i, "ldrd", "\t$dst1, $addr", []>;
1269 def t2LDRDpci : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
1270 (ins i32imm:$addr), IIC_iLoad_d_i,
1271 "ldrd", "\t$dst1, $addr", []> {
1272 let Inst{19-16} = 0b1111; // Rn
1274 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1276 // zextload i1 -> zextload i8
1277 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1278 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1279 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
1280 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1281 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1282 (t2LDRBs t2addrmode_so_reg:$addr)>;
1283 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1284 (t2LDRBpci tconstpool:$addr)>;
1286 // extload -> zextload
1287 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1289 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1290 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1291 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
1292 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1293 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1294 (t2LDRBs t2addrmode_so_reg:$addr)>;
1295 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1296 (t2LDRBpci tconstpool:$addr)>;
1298 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1299 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1300 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
1301 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1302 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1303 (t2LDRBs t2addrmode_so_reg:$addr)>;
1304 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1305 (t2LDRBpci tconstpool:$addr)>;
1307 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1308 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1309 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
1310 (t2LDRHi8 t2addrmode_imm8:$addr)>;
1311 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1312 (t2LDRHs t2addrmode_so_reg:$addr)>;
1313 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1314 (t2LDRHpci tconstpool:$addr)>;
1316 // FIXME: The destination register of the loads and stores can't be PC, but
1317 // can be SP. We need another regclass (similar to rGPR) to represent
1318 // that. Not a pressing issue since these are selected manually,
1322 let mayLoad = 1, neverHasSideEffects = 1 in {
1323 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1324 (ins t2addrmode_imm8:$addr),
1325 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1326 "ldr", "\t$dst, $addr!", "$addr.base = $base_wb",
1329 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1330 (ins GPR:$base, t2am_imm8_offset:$offset),
1331 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1332 "ldr", "\t$dst, [$base], $offset", "$base = $base_wb",
1335 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1336 (ins t2addrmode_imm8:$addr),
1337 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1338 "ldrb", "\t$dst, $addr!", "$addr.base = $base_wb",
1340 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1341 (ins GPR:$base, t2am_imm8_offset:$offset),
1342 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1343 "ldrb", "\t$dst, [$base], $offset", "$base = $base_wb",
1346 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1347 (ins t2addrmode_imm8:$addr),
1348 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1349 "ldrh", "\t$dst, $addr!", "$addr.base = $base_wb",
1351 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1352 (ins GPR:$base, t2am_imm8_offset:$offset),
1353 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1354 "ldrh", "\t$dst, [$base], $offset", "$base = $base_wb",
1357 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1358 (ins t2addrmode_imm8:$addr),
1359 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1360 "ldrsb", "\t$dst, $addr!", "$addr.base = $base_wb",
1362 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1363 (ins GPR:$base, t2am_imm8_offset:$offset),
1364 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1365 "ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb",
1368 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1369 (ins t2addrmode_imm8:$addr),
1370 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1371 "ldrsh", "\t$dst, $addr!", "$addr.base = $base_wb",
1373 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1374 (ins GPR:$base, t2am_imm8_offset:$offset),
1375 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1376 "ldrsh", "\t$dst, [$base], $offset", "$base = $base_wb",
1378 } // mayLoad = 1, neverHasSideEffects = 1
1380 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1381 // for disassembly only.
1382 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1383 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1384 : T2Ii8<(outs GPR:$dst), (ins t2addrmode_imm8:$addr), ii, opc,
1385 "\t$dst, $addr", []> {
1386 let Inst{31-27} = 0b11111;
1387 let Inst{26-25} = 0b00;
1388 let Inst{24} = signed;
1390 let Inst{22-21} = type;
1391 let Inst{20} = 1; // load
1393 let Inst{10-8} = 0b110; // PUW.
1396 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1397 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1398 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1399 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1400 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1403 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1404 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1405 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1406 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1407 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1408 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1411 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1,
1412 isCodeGenOnly = 1 in // $src2 doesn't exist in asm string
1413 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1414 (ins GPR:$src1, GPR:$src2, t2addrmode_imm8s4:$addr),
1415 IIC_iStore_d_r, "strd", "\t$src1, $addr", []>;
1418 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1419 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1420 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1421 "str", "\t$src, [$base, $offset]!", "$base = $base_wb",
1423 (pre_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1425 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1426 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1427 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1428 "str", "\t$src, [$base], $offset", "$base = $base_wb",
1430 (post_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1432 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1433 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1434 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1435 "strh", "\t$src, [$base, $offset]!", "$base = $base_wb",
1437 (pre_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1439 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1440 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1441 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1442 "strh", "\t$src, [$base], $offset", "$base = $base_wb",
1444 (post_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1446 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1447 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1448 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1449 "strb", "\t$src, [$base, $offset]!", "$base = $base_wb",
1451 (pre_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1453 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1454 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1455 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1456 "strb", "\t$src, [$base], $offset", "$base = $base_wb",
1458 (post_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1460 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1462 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1463 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1464 : T2Ii8<(outs GPR:$src), (ins t2addrmode_imm8:$addr), ii, opc,
1465 "\t$src, $addr", []> {
1466 let Inst{31-27} = 0b11111;
1467 let Inst{26-25} = 0b00;
1468 let Inst{24} = 0; // not signed
1470 let Inst{22-21} = type;
1471 let Inst{20} = 0; // store
1473 let Inst{10-8} = 0b110; // PUW
1476 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1477 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1478 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1480 // ldrd / strd pre / post variants
1481 // For disassembly only.
1483 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1484 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1485 "ldrd", "\t$dst1, $dst2, [$base, $imm]!", []>;
1487 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1488 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1489 "ldrd", "\t$dst1, $dst2, [$base], $imm", []>;
1491 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1492 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1493 IIC_iStore_d_ru, "strd", "\t$src1, $src2, [$base, $imm]!", []>;
1495 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1496 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1497 IIC_iStore_d_ru, "strd", "\t$src1, $src2, [$base], $imm", []>;
1499 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1500 // data/instruction access. These are for disassembly only.
1501 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1502 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1503 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1505 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1507 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1508 let Inst{31-25} = 0b1111100;
1509 let Inst{24} = instr;
1510 let Inst{23} = 1; // U = 1
1512 let Inst{21} = write;
1514 let Inst{15-12} = 0b1111;
1517 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1519 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1520 let Inst{31-25} = 0b1111100;
1521 let Inst{24} = instr;
1522 let Inst{23} = 0; // U = 0
1524 let Inst{21} = write;
1526 let Inst{15-12} = 0b1111;
1527 let Inst{11-8} = 0b1100;
1530 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1532 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1533 let Inst{31-25} = 0b1111100;
1534 let Inst{24} = instr;
1535 let Inst{23} = 0; // add = TRUE for T1
1537 let Inst{21} = write;
1539 let Inst{15-12} = 0b1111;
1540 let Inst{11-6} = 0000000;
1543 let isCodeGenOnly = 1 in
1544 def pci : T2Ipc<(outs), (ins i32imm:$addr), IIC_Preload, opc,
1547 let Inst{31-25} = 0b1111100;
1548 let Inst{24} = write;
1549 let Inst{23} = ?; // add = (U == 1)
1551 let Inst{21} = instr;
1553 let Inst{19-16} = 0b1111; // Rn = 0b1111
1554 let Inst{15-12} = 0b1111;
1558 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1559 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1560 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1562 //===----------------------------------------------------------------------===//
1563 // Load / store multiple Instructions.
1566 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1567 InstrItinClass itin_upd, bit L_bit> {
1569 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1570 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1574 let Inst{31-27} = 0b11101;
1575 let Inst{26-25} = 0b00;
1576 let Inst{24-23} = 0b01; // Increment After
1578 let Inst{21} = 0; // No writeback
1579 let Inst{20} = L_bit;
1580 let Inst{19-16} = Rn;
1581 let Inst{15-0} = regs;
1584 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1585 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1589 let Inst{31-27} = 0b11101;
1590 let Inst{26-25} = 0b00;
1591 let Inst{24-23} = 0b01; // Increment After
1593 let Inst{21} = 1; // Writeback
1594 let Inst{20} = L_bit;
1595 let Inst{19-16} = Rn;
1596 let Inst{15-0} = regs;
1599 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1600 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1604 let Inst{31-27} = 0b11101;
1605 let Inst{26-25} = 0b00;
1606 let Inst{24-23} = 0b10; // Decrement Before
1608 let Inst{21} = 0; // No writeback
1609 let Inst{20} = L_bit;
1610 let Inst{19-16} = Rn;
1611 let Inst{15-0} = regs;
1614 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1615 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1619 let Inst{31-27} = 0b11101;
1620 let Inst{26-25} = 0b00;
1621 let Inst{24-23} = 0b10; // Decrement Before
1623 let Inst{21} = 1; // Writeback
1624 let Inst{20} = L_bit;
1625 let Inst{19-16} = Rn;
1626 let Inst{15-0} = regs;
1630 let neverHasSideEffects = 1 in {
1632 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1633 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1635 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1636 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1638 } // neverHasSideEffects
1641 //===----------------------------------------------------------------------===//
1642 // Move Instructions.
1645 let neverHasSideEffects = 1 in
1646 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1647 "mov", ".w\t$Rd, $Rm", []> {
1648 let Inst{31-27} = 0b11101;
1649 let Inst{26-25} = 0b01;
1650 let Inst{24-21} = 0b0010;
1651 let Inst{20} = ?; // The S bit.
1652 let Inst{19-16} = 0b1111; // Rn
1653 let Inst{14-12} = 0b000;
1654 let Inst{7-4} = 0b0000;
1657 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1658 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1659 AddedComplexity = 1 in
1660 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1661 "mov", ".w\t$Rd, $imm",
1662 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1663 let Inst{31-27} = 0b11110;
1665 let Inst{24-21} = 0b0010;
1666 let Inst{20} = ?; // The S bit.
1667 let Inst{19-16} = 0b1111; // Rn
1671 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1672 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins i32imm:$imm), IIC_iMOVi,
1673 "movw", "\t$Rd, $imm",
1674 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1675 let Inst{31-27} = 0b11110;
1677 let Inst{24-21} = 0b0010;
1678 let Inst{20} = 0; // The S bit.
1684 let Inst{11-8} = Rd{3-0};
1685 let Inst{19-16} = imm{15-12};
1686 let Inst{26} = imm{11};
1687 let Inst{14-12} = imm{10-8};
1688 let Inst{7-0} = imm{7-0};
1691 let Constraints = "$src = $Rd" in
1692 def t2MOVTi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1693 "movt", "\t$Rd, $imm",
1695 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1696 let Inst{31-27} = 0b11110;
1698 let Inst{24-21} = 0b0110;
1699 let Inst{20} = 0; // The S bit.
1705 let Inst{11-8} = Rd{3-0};
1706 let Inst{19-16} = imm{15-12};
1707 let Inst{26} = imm{11};
1708 let Inst{14-12} = imm{10-8};
1709 let Inst{7-0} = imm{7-0};
1712 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1714 //===----------------------------------------------------------------------===//
1715 // Extend Instructions.
1720 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1721 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1722 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1723 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1724 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1726 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1727 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1728 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1729 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1730 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1732 // TODO: SXT(A){B|H}16 - done for disassembly only
1736 let AddedComplexity = 16 in {
1737 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1738 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1739 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1740 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1741 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1742 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1744 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1745 // The transformation should probably be done as a combiner action
1746 // instead so we can include a check for masking back in the upper
1747 // eight bits of the source into the lower eight bits of the result.
1748 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1749 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1750 // Requires<[HasT2ExtractPack, IsThumb2]>;
1751 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1752 (t2UXTB16r_rot rGPR:$Src, 8)>,
1753 Requires<[HasT2ExtractPack, IsThumb2]>;
1755 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1756 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1757 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1758 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1759 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1762 //===----------------------------------------------------------------------===//
1763 // Arithmetic Instructions.
1766 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1767 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1768 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1769 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1771 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1772 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1773 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1774 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1775 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1776 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1777 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1779 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1780 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1781 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1782 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1783 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1784 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1785 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1786 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1789 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1790 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1791 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1792 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1794 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1795 // The assume-no-carry-in form uses the negation of the input since add/sub
1796 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1797 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1799 // The AddedComplexity preferences the first variant over the others since
1800 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1801 let AddedComplexity = 1 in
1802 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1803 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1804 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1805 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1806 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1807 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1808 let AddedComplexity = 1 in
1809 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1810 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1811 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1812 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1813 // The with-carry-in form matches bitwise not instead of the negation.
1814 // Effectively, the inverse interpretation of the carry flag already accounts
1815 // for part of the negation.
1816 let AddedComplexity = 1 in
1817 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1818 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1819 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1820 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1822 // Select Bytes -- for disassembly only
1824 def t2SEL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, "sel",
1825 "\t$dst, $a, $b", []> {
1826 let Inst{31-27} = 0b11111;
1827 let Inst{26-24} = 0b010;
1829 let Inst{22-20} = 0b010;
1830 let Inst{15-12} = 0b1111;
1832 let Inst{6-4} = 0b000;
1835 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1836 // And Miscellaneous operations -- for disassembly only
1837 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1838 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1839 : T2I<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), NoItinerary, opc,
1840 "\t$Rd, $Rn, $Rm", pat> {
1841 let Inst{31-27} = 0b11111;
1842 let Inst{26-23} = 0b0101;
1843 let Inst{22-20} = op22_20;
1844 let Inst{15-12} = 0b1111;
1845 let Inst{7-4} = op7_4;
1851 let Inst{11-8} = Rd{3-0};
1852 let Inst{19-16} = Rn{3-0};
1853 let Inst{3-0} = Rm{3-0};
1856 // Saturating add/subtract -- for disassembly only
1858 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1859 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))]>;
1860 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1861 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1862 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1863 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1864 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1865 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1866 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1867 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))]>;
1868 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1869 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1870 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1871 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1872 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1873 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1874 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1875 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1877 // Signed/Unsigned add/subtract -- for disassembly only
1879 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1880 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1881 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1882 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1883 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1884 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1885 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1886 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1887 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1888 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1889 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1890 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1892 // Signed/Unsigned halving add/subtract -- for disassembly only
1894 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1895 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1896 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1897 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1898 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1899 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1900 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1901 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1902 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1903 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1904 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1905 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1907 // Helper class for disassembly only
1908 // A6.3.16 & A6.3.17
1909 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1910 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1911 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1912 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1913 let Inst{31-27} = 0b11111;
1914 let Inst{26-24} = 0b011;
1915 let Inst{23} = long;
1916 let Inst{22-20} = op22_20;
1917 let Inst{7-4} = op7_4;
1920 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1921 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1922 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1923 let Inst{31-27} = 0b11111;
1924 let Inst{26-24} = 0b011;
1925 let Inst{23} = long;
1926 let Inst{22-20} = op22_20;
1927 let Inst{7-4} = op7_4;
1930 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1932 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1933 (ins rGPR:$Rn, rGPR:$Rm),
1934 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []> {
1935 let Inst{15-12} = 0b1111;
1937 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1938 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1939 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>;
1941 // Signed/Unsigned saturate -- for disassembly only
1943 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1944 string opc, string asm, list<dag> pattern>
1945 : T2I<oops, iops, itin, opc, asm, pattern> {
1951 let Inst{11-8} = Rd{3-0};
1952 let Inst{19-16} = Rn{3-0};
1953 let Inst{4-0} = sat_imm{4-0};
1954 let Inst{21} = sh{6};
1955 let Inst{14-12} = sh{4-2};
1956 let Inst{7-6} = sh{1-0};
1959 def t2SSAT: T2I<(outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1960 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1961 [/* For disassembly only; pattern left blank */]> {
1962 let Inst{31-27} = 0b11110;
1963 let Inst{25-22} = 0b1100;
1968 def t2SSAT16: T2I<(outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn), NoItinerary,
1969 "ssat16", "\t$Rd, $sat_imm, $Rn",
1970 [/* For disassembly only; pattern left blank */]> {
1971 let Inst{31-27} = 0b11110;
1972 let Inst{25-22} = 0b1100;
1975 let Inst{21} = 1; // sh = '1'
1976 let Inst{14-12} = 0b000; // imm3 = '000'
1977 let Inst{7-6} = 0b00; // imm2 = '00'
1980 def t2USAT: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a, shift_imm:$sh),
1981 NoItinerary, "usat", "\t$dst, $bit_pos, $a$sh",
1982 [/* For disassembly only; pattern left blank */]> {
1983 let Inst{31-27} = 0b11110;
1984 let Inst{25-22} = 0b1110;
1989 def t2USAT16: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a), NoItinerary,
1990 "usat16", "\t$dst, $bit_pos, $a",
1991 [/* For disassembly only; pattern left blank */]> {
1992 let Inst{31-27} = 0b11110;
1993 let Inst{25-22} = 0b1110;
1996 let Inst{21} = 1; // sh = '1'
1997 let Inst{14-12} = 0b000; // imm3 = '000'
1998 let Inst{7-6} = 0b00; // imm2 = '00'
2001 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2002 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2004 //===----------------------------------------------------------------------===//
2005 // Shift and rotate Instructions.
2008 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2009 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2010 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2011 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2013 let Uses = [CPSR] in {
2014 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2015 "rrx", "\t$Rd, $Rm",
2016 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2017 let Inst{31-27} = 0b11101;
2018 let Inst{26-25} = 0b01;
2019 let Inst{24-21} = 0b0010;
2020 let Inst{20} = ?; // The S bit.
2021 let Inst{19-16} = 0b1111; // Rn
2022 let Inst{14-12} = 0b000;
2023 let Inst{7-4} = 0b0011;
2027 let Defs = [CPSR] in {
2028 def t2MOVsrl_flag : T2TwoRegShiftImm<
2029 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2030 "lsrs", ".w\t$Rd, $Rm, #1",
2031 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2032 let Inst{31-27} = 0b11101;
2033 let Inst{26-25} = 0b01;
2034 let Inst{24-21} = 0b0010;
2035 let Inst{20} = 1; // The S bit.
2036 let Inst{19-16} = 0b1111; // Rn
2037 let Inst{5-4} = 0b01; // Shift type.
2038 // Shift amount = Inst{14-12:7-6} = 1.
2039 let Inst{14-12} = 0b000;
2040 let Inst{7-6} = 0b01;
2042 def t2MOVsra_flag : T2TwoRegShiftImm<
2043 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2044 "asrs", ".w\t$Rd, $Rm, #1",
2045 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2046 let Inst{31-27} = 0b11101;
2047 let Inst{26-25} = 0b01;
2048 let Inst{24-21} = 0b0010;
2049 let Inst{20} = 1; // The S bit.
2050 let Inst{19-16} = 0b1111; // Rn
2051 let Inst{5-4} = 0b10; // Shift type.
2052 // Shift amount = Inst{14-12:7-6} = 1.
2053 let Inst{14-12} = 0b000;
2054 let Inst{7-6} = 0b01;
2058 //===----------------------------------------------------------------------===//
2059 // Bitwise Instructions.
2062 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2063 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2064 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2065 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2066 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2067 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2068 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2069 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2070 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2072 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2073 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2074 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2076 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2077 string opc, string asm, list<dag> pattern>
2078 : T2I<oops, iops, itin, opc, asm, pattern> {
2083 let Inst{11-8} = Rd{3-0};
2084 let Inst{4-0} = msb{4-0};
2085 let Inst{14-12} = lsb{4-2};
2086 let Inst{7-6} = lsb{1-0};
2089 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2090 string opc, string asm, list<dag> pattern>
2091 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2094 let Inst{19-16} = Rn{3-0};
2097 let Constraints = "$src = $Rd" in
2098 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2099 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2100 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2101 let Inst{31-27} = 0b11110;
2103 let Inst{24-20} = 0b10110;
2104 let Inst{19-16} = 0b1111; // Rn
2108 let msb{4-0} = imm{9-5};
2109 let lsb{4-0} = imm{4-0};
2112 def t2SBFX: T2TwoRegBitFI<
2113 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2114 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2115 let Inst{31-27} = 0b11110;
2117 let Inst{24-20} = 0b10100;
2121 def t2UBFX: T2TwoRegBitFI<
2122 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2123 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2124 let Inst{31-27} = 0b11110;
2126 let Inst{24-20} = 0b11100;
2130 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2131 let Constraints = "$src = $Rd" in
2132 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2133 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2134 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2135 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2136 bf_inv_mask_imm:$imm))]> {
2137 let Inst{31-27} = 0b11110;
2139 let Inst{24-20} = 0b10110;
2143 let msb{4-0} = imm{9-5};
2144 let lsb{4-0} = imm{4-0};
2147 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2148 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2149 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2151 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2152 let AddedComplexity = 1 in
2153 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2154 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2155 UnOpFrag<(not node:$Src)>, 1, 1>;
2158 let AddedComplexity = 1 in
2159 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2160 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2162 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2163 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2164 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2165 Requires<[IsThumb2]>;
2167 def : T2Pat<(t2_so_imm_not:$src),
2168 (t2MVNi t2_so_imm_not:$src)>;
2170 //===----------------------------------------------------------------------===//
2171 // Multiply Instructions.
2173 let isCommutable = 1 in
2174 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2175 "mul", "\t$Rd, $Rn, $Rm",
2176 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2177 let Inst{31-27} = 0b11111;
2178 let Inst{26-23} = 0b0110;
2179 let Inst{22-20} = 0b000;
2180 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2181 let Inst{7-4} = 0b0000; // Multiply
2184 def t2MLA: T2FourReg<
2185 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2186 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2187 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2188 let Inst{31-27} = 0b11111;
2189 let Inst{26-23} = 0b0110;
2190 let Inst{22-20} = 0b000;
2191 let Inst{7-4} = 0b0000; // Multiply
2194 def t2MLS: T2FourReg<
2195 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2196 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2197 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2198 let Inst{31-27} = 0b11111;
2199 let Inst{26-23} = 0b0110;
2200 let Inst{22-20} = 0b000;
2201 let Inst{7-4} = 0b0001; // Multiply and Subtract
2204 // Extra precision multiplies with low / high results
2205 let neverHasSideEffects = 1 in {
2206 let isCommutable = 1 in {
2207 def t2SMULL : T2FourReg<
2208 (outs rGPR:$Rd, rGPR:$Ra),
2209 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2210 "smull", "\t$Rd, $Ra, $Rn, $Rm", []> {
2211 let Inst{31-27} = 0b11111;
2212 let Inst{26-23} = 0b0111;
2213 let Inst{22-20} = 0b000;
2214 let Inst{7-4} = 0b0000;
2217 def t2UMULL : T2FourReg<
2218 (outs rGPR:$Rd, rGPR:$Ra),
2219 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2220 "umull", "\t$Rd, $Ra, $Rn, $Rm", []> {
2221 let Inst{31-27} = 0b11111;
2222 let Inst{26-23} = 0b0111;
2223 let Inst{22-20} = 0b010;
2224 let Inst{7-4} = 0b0000;
2228 // Multiply + accumulate
2229 def t2SMLAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
2230 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2231 "smlal", "\t$Ra, $Rd, $Rn, $Rm", []>{
2232 let Inst{31-27} = 0b11111;
2233 let Inst{26-23} = 0b0111;
2234 let Inst{22-20} = 0b100;
2235 let Inst{7-4} = 0b0000;
2238 def t2UMLAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
2239 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2240 "umlal", "\t$Ra, $Rd, $Rn, $Rm", []>{
2241 let Inst{31-27} = 0b11111;
2242 let Inst{26-23} = 0b0111;
2243 let Inst{22-20} = 0b110;
2244 let Inst{7-4} = 0b0000;
2247 def t2UMAAL : T2FourReg<(outs rGPR:$Ra, rGPR:$Rd),
2248 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2249 "umaal", "\t$Ra, $Rd, $Rn, $Rm", []>{
2250 let Inst{31-27} = 0b11111;
2251 let Inst{26-23} = 0b0111;
2252 let Inst{22-20} = 0b110;
2253 let Inst{7-4} = 0b0110;
2255 } // neverHasSideEffects
2257 // Rounding variants of the below included for disassembly only
2259 // Most significant word multiply
2260 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2261 "smmul", "\t$Rd, $Rn, $Rm",
2262 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]> {
2263 let Inst{31-27} = 0b11111;
2264 let Inst{26-23} = 0b0110;
2265 let Inst{22-20} = 0b101;
2266 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2267 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2270 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2271 "smmulr", "\t$Rd, $Rn, $Rm", []> {
2272 let Inst{31-27} = 0b11111;
2273 let Inst{26-23} = 0b0110;
2274 let Inst{22-20} = 0b101;
2275 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2276 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2279 def t2SMMLA : T2FourReg<
2280 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2281 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2282 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]> {
2283 let Inst{31-27} = 0b11111;
2284 let Inst{26-23} = 0b0110;
2285 let Inst{22-20} = 0b101;
2286 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2289 def t2SMMLAR: T2FourReg<
2290 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2291 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []> {
2292 let Inst{31-27} = 0b11111;
2293 let Inst{26-23} = 0b0110;
2294 let Inst{22-20} = 0b101;
2295 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2298 def t2SMMLS: T2FourReg<
2299 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2300 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2301 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]> {
2302 let Inst{31-27} = 0b11111;
2303 let Inst{26-23} = 0b0110;
2304 let Inst{22-20} = 0b110;
2305 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2308 def t2SMMLSR:T2FourReg<
2309 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2310 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []> {
2311 let Inst{31-27} = 0b11111;
2312 let Inst{26-23} = 0b0110;
2313 let Inst{22-20} = 0b110;
2314 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2317 multiclass T2I_smul<string opc, PatFrag opnode> {
2318 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2319 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2320 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2321 (sext_inreg rGPR:$Rm, i16)))]> {
2322 let Inst{31-27} = 0b11111;
2323 let Inst{26-23} = 0b0110;
2324 let Inst{22-20} = 0b001;
2325 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2326 let Inst{7-6} = 0b00;
2327 let Inst{5-4} = 0b00;
2330 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2331 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2332 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2333 (sra rGPR:$Rm, (i32 16))))]> {
2334 let Inst{31-27} = 0b11111;
2335 let Inst{26-23} = 0b0110;
2336 let Inst{22-20} = 0b001;
2337 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2338 let Inst{7-6} = 0b00;
2339 let Inst{5-4} = 0b01;
2342 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2343 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2344 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2345 (sext_inreg rGPR:$Rm, i16)))]> {
2346 let Inst{31-27} = 0b11111;
2347 let Inst{26-23} = 0b0110;
2348 let Inst{22-20} = 0b001;
2349 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2350 let Inst{7-6} = 0b00;
2351 let Inst{5-4} = 0b10;
2354 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2355 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2356 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2357 (sra rGPR:$Rm, (i32 16))))]> {
2358 let Inst{31-27} = 0b11111;
2359 let Inst{26-23} = 0b0110;
2360 let Inst{22-20} = 0b001;
2361 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2362 let Inst{7-6} = 0b00;
2363 let Inst{5-4} = 0b11;
2366 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2367 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2368 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2369 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]> {
2370 let Inst{31-27} = 0b11111;
2371 let Inst{26-23} = 0b0110;
2372 let Inst{22-20} = 0b011;
2373 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2374 let Inst{7-6} = 0b00;
2375 let Inst{5-4} = 0b00;
2378 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2379 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2380 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2381 (sra rGPR:$Rm, (i32 16))), (i32 16)))]> {
2382 let Inst{31-27} = 0b11111;
2383 let Inst{26-23} = 0b0110;
2384 let Inst{22-20} = 0b011;
2385 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2386 let Inst{7-6} = 0b00;
2387 let Inst{5-4} = 0b01;
2392 multiclass T2I_smla<string opc, PatFrag opnode> {
2394 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2395 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2396 [(set rGPR:$Rd, (add rGPR:$Ra,
2397 (opnode (sext_inreg rGPR:$Rn, i16),
2398 (sext_inreg rGPR:$Rm, i16))))]> {
2399 let Inst{31-27} = 0b11111;
2400 let Inst{26-23} = 0b0110;
2401 let Inst{22-20} = 0b001;
2402 let Inst{7-6} = 0b00;
2403 let Inst{5-4} = 0b00;
2407 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2408 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2409 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2410 (sra rGPR:$Rm, (i32 16)))))]> {
2411 let Inst{31-27} = 0b11111;
2412 let Inst{26-23} = 0b0110;
2413 let Inst{22-20} = 0b001;
2414 let Inst{7-6} = 0b00;
2415 let Inst{5-4} = 0b01;
2419 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2420 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2421 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2422 (sext_inreg rGPR:$Rm, i16))))]> {
2423 let Inst{31-27} = 0b11111;
2424 let Inst{26-23} = 0b0110;
2425 let Inst{22-20} = 0b001;
2426 let Inst{7-6} = 0b00;
2427 let Inst{5-4} = 0b10;
2431 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2432 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2433 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2434 (sra rGPR:$Rm, (i32 16)))))]> {
2435 let Inst{31-27} = 0b11111;
2436 let Inst{26-23} = 0b0110;
2437 let Inst{22-20} = 0b001;
2438 let Inst{7-6} = 0b00;
2439 let Inst{5-4} = 0b11;
2443 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2444 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2445 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2446 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]> {
2447 let Inst{31-27} = 0b11111;
2448 let Inst{26-23} = 0b0110;
2449 let Inst{22-20} = 0b011;
2450 let Inst{7-6} = 0b00;
2451 let Inst{5-4} = 0b00;
2455 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2456 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2457 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2458 (sra rGPR:$Rm, (i32 16))), (i32 16))))]> {
2459 let Inst{31-27} = 0b11111;
2460 let Inst{26-23} = 0b0110;
2461 let Inst{22-20} = 0b011;
2462 let Inst{7-6} = 0b00;
2463 let Inst{5-4} = 0b01;
2467 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2468 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2470 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2471 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2472 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2473 [/* For disassembly only; pattern left blank */]>;
2474 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2475 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2476 [/* For disassembly only; pattern left blank */]>;
2477 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2478 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2479 [/* For disassembly only; pattern left blank */]>;
2480 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2481 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2482 [/* For disassembly only; pattern left blank */]>;
2484 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2485 // These are for disassembly only.
2487 def t2SMUAD: T2ThreeReg_mac<
2488 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2489 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []> {
2490 let Inst{15-12} = 0b1111;
2492 def t2SMUADX:T2ThreeReg_mac<
2493 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2494 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []> {
2495 let Inst{15-12} = 0b1111;
2497 def t2SMUSD: T2ThreeReg_mac<
2498 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2499 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []> {
2500 let Inst{15-12} = 0b1111;
2502 def t2SMUSDX:T2ThreeReg_mac<
2503 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2504 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []> {
2505 let Inst{15-12} = 0b1111;
2507 def t2SMLAD : T2ThreeReg_mac<
2508 0, 0b010, 0b0000, (outs rGPR:$Rd),
2509 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2510 "\t$Rd, $Rn, $Rm, $Ra", []>;
2511 def t2SMLADX : T2FourReg_mac<
2512 0, 0b010, 0b0001, (outs rGPR:$Rd),
2513 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2514 "\t$Rd, $Rn, $Rm, $Ra", []>;
2515 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2516 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2517 "\t$Rd, $Rn, $Rm, $Ra", []>;
2518 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2519 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2520 "\t$Rd, $Rn, $Rm, $Ra", []>;
2521 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2522 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2523 "\t$Ra, $Rd, $Rm, $Rn", []>;
2524 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2525 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2526 "\t$Ra, $Rd, $Rm, $Rn", []>;
2527 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2528 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2529 "\t$Ra, $Rd, $Rm, $Rn", []>;
2530 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2531 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2532 "\t$Ra, $Rd, $Rm, $Rn", []>;
2534 //===----------------------------------------------------------------------===//
2535 // Misc. Arithmetic Instructions.
2538 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2539 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2540 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2541 let Inst{31-27} = 0b11111;
2542 let Inst{26-22} = 0b01010;
2543 let Inst{21-20} = op1;
2544 let Inst{15-12} = 0b1111;
2545 let Inst{7-6} = 0b10;
2546 let Inst{5-4} = op2;
2547 let Rn{3-0} = Rm{3-0};
2550 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2551 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2553 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2554 "rbit", "\t$Rd, $Rm",
2555 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2557 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2558 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2560 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2561 "rev16", ".w\t$Rd, $Rm",
2563 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF),
2564 (or (and (shl rGPR:$Rm, (i32 8)), 0xFF00),
2565 (or (and (srl rGPR:$Rm, (i32 8)), 0xFF0000),
2566 (and (shl rGPR:$Rm, (i32 8)), 0xFF000000)))))]>;
2568 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2569 "revsh", ".w\t$Rd, $Rm",
2572 (or (srl (and rGPR:$Rm, 0xFF00), (i32 8)),
2573 (shl rGPR:$Rm, (i32 8))), i16))]>;
2575 def t2PKHBT : T2ThreeReg<
2576 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2577 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2578 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2579 (and (shl rGPR:$Rm, lsl_amt:$sh),
2581 Requires<[HasT2ExtractPack, IsThumb2]> {
2582 let Inst{31-27} = 0b11101;
2583 let Inst{26-25} = 0b01;
2584 let Inst{24-20} = 0b01100;
2585 let Inst{5} = 0; // BT form
2589 let Inst{14-12} = sh{7-5};
2590 let Inst{7-6} = sh{4-3};
2593 // Alternate cases for PKHBT where identities eliminate some nodes.
2594 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2595 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2596 Requires<[HasT2ExtractPack, IsThumb2]>;
2597 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2598 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2599 Requires<[HasT2ExtractPack, IsThumb2]>;
2601 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2602 // will match the pattern below.
2603 def t2PKHTB : T2ThreeReg<
2604 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2605 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2606 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2607 (and (sra rGPR:$Rm, asr_amt:$sh),
2609 Requires<[HasT2ExtractPack, IsThumb2]> {
2610 let Inst{31-27} = 0b11101;
2611 let Inst{26-25} = 0b01;
2612 let Inst{24-20} = 0b01100;
2613 let Inst{5} = 1; // TB form
2617 let Inst{14-12} = sh{7-5};
2618 let Inst{7-6} = sh{4-3};
2621 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2622 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2623 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2624 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2625 Requires<[HasT2ExtractPack, IsThumb2]>;
2626 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2627 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2628 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2629 Requires<[HasT2ExtractPack, IsThumb2]>;
2631 //===----------------------------------------------------------------------===//
2632 // Comparison Instructions...
2634 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2635 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2636 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2637 defm t2CMPz : T2I_cmp_irs<0b1101, "cmp",
2638 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2639 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
2641 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2642 // Compare-to-zero still works out, just not the relationals
2643 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2644 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2645 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2646 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2647 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2649 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2650 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2652 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2653 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2655 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2656 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2657 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2658 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2659 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2660 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2662 // Conditional moves
2663 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2664 // a two-value operand where a dag node expects two operands. :(
2665 let neverHasSideEffects = 1 in {
2666 def t2MOVCCr : T2TwoReg<
2667 (outs rGPR:$Rd), (ins rGPR:$false, rGPR:$Rm), IIC_iCMOVr,
2668 "mov", ".w\t$Rd, $Rm",
2669 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2670 RegConstraint<"$false = $Rd"> {
2671 let Inst{31-27} = 0b11101;
2672 let Inst{26-25} = 0b01;
2673 let Inst{24-21} = 0b0010;
2674 let Inst{20} = 0; // The S bit.
2675 let Inst{19-16} = 0b1111; // Rn
2676 let Inst{14-12} = 0b000;
2677 let Inst{7-4} = 0b0000;
2680 let isMoveImm = 1 in
2681 def t2MOVCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2682 IIC_iCMOVi, "mov", ".w\t$Rd, $imm",
2683 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2684 RegConstraint<"$false = $Rd"> {
2685 let Inst{31-27} = 0b11110;
2687 let Inst{24-21} = 0b0010;
2688 let Inst{20} = 0; // The S bit.
2689 let Inst{19-16} = 0b1111; // Rn
2693 let isMoveImm = 1 in
2694 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, i32imm:$imm),
2696 "movw", "\t$Rd, $imm", []>,
2697 RegConstraint<"$false = $Rd"> {
2698 let Inst{31-27} = 0b11110;
2700 let Inst{24-21} = 0b0010;
2701 let Inst{20} = 0; // The S bit.
2707 let Inst{11-8} = Rd{3-0};
2708 let Inst{19-16} = imm{15-12};
2709 let Inst{26} = imm{11};
2710 let Inst{14-12} = imm{10-8};
2711 let Inst{7-0} = imm{7-0};
2714 let isMoveImm = 1 in
2715 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2716 (ins rGPR:$false, i32imm:$src, pred:$p),
2717 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2719 let isMoveImm = 1 in
2720 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2721 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2722 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2723 imm:$cc, CCR:$ccr))*/]>,
2724 RegConstraint<"$false = $Rd"> {
2725 let Inst{31-27} = 0b11110;
2727 let Inst{24-21} = 0b0011;
2728 let Inst{20} = 0; // The S bit.
2729 let Inst{19-16} = 0b1111; // Rn
2733 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2734 string opc, string asm, list<dag> pattern>
2735 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2736 let Inst{31-27} = 0b11101;
2737 let Inst{26-25} = 0b01;
2738 let Inst{24-21} = 0b0010;
2739 let Inst{20} = 0; // The S bit.
2740 let Inst{19-16} = 0b1111; // Rn
2741 let Inst{5-4} = opcod; // Shift type.
2743 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2744 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2745 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2746 RegConstraint<"$false = $Rd">;
2747 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2748 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2749 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2750 RegConstraint<"$false = $Rd">;
2751 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2752 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2753 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2754 RegConstraint<"$false = $Rd">;
2755 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2756 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2757 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2758 RegConstraint<"$false = $Rd">;
2759 } // neverHasSideEffects
2761 //===----------------------------------------------------------------------===//
2762 // Atomic operations intrinsics
2765 // memory barriers protect the atomic sequences
2766 let hasSideEffects = 1 in {
2767 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2768 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2769 Requires<[IsThumb, HasDB]> {
2771 let Inst{31-4} = 0xf3bf8f5;
2772 let Inst{3-0} = opt;
2776 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2778 [/* For disassembly only; pattern left blank */]>,
2779 Requires<[IsThumb, HasDB]> {
2781 let Inst{31-4} = 0xf3bf8f4;
2782 let Inst{3-0} = opt;
2785 // ISB has only full system option -- for disassembly only
2786 def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
2787 [/* For disassembly only; pattern left blank */]>,
2788 Requires<[IsThumb2, HasV7]> {
2789 let Inst{31-4} = 0xf3bf8f6;
2790 let Inst{3-0} = 0b1111;
2793 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2794 InstrItinClass itin, string opc, string asm, string cstr,
2795 list<dag> pattern, bits<4> rt2 = 0b1111>
2796 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2797 let Inst{31-27} = 0b11101;
2798 let Inst{26-20} = 0b0001101;
2799 let Inst{11-8} = rt2;
2800 let Inst{7-6} = 0b01;
2801 let Inst{5-4} = opcod;
2802 let Inst{3-0} = 0b1111;
2806 let Inst{19-16} = Rn{3-0};
2807 let Inst{15-12} = Rt{3-0};
2809 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2810 InstrItinClass itin, string opc, string asm, string cstr,
2811 list<dag> pattern, bits<4> rt2 = 0b1111>
2812 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2813 let Inst{31-27} = 0b11101;
2814 let Inst{26-20} = 0b0001100;
2815 let Inst{11-8} = rt2;
2816 let Inst{7-6} = 0b01;
2817 let Inst{5-4} = opcod;
2822 let Inst{11-8} = Rd{3-0};
2823 let Inst{19-16} = Rn{3-0};
2824 let Inst{15-12} = Rt{3-0};
2827 let mayLoad = 1 in {
2828 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2829 Size4Bytes, NoItinerary, "ldrexb", "\t$Rt, [$Rn]",
2831 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2832 Size4Bytes, NoItinerary, "ldrexh", "\t$Rt, [$Rn]",
2834 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins rGPR:$Rn), AddrModeNone,
2835 Size4Bytes, NoItinerary,
2836 "ldrex", "\t$Rt, [$Rn]", "",
2838 let Inst{31-27} = 0b11101;
2839 let Inst{26-20} = 0b0000101;
2840 let Inst{11-8} = 0b1111;
2841 let Inst{7-0} = 0b00000000; // imm8 = 0
2843 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2), (ins rGPR:$Rn),
2844 AddrModeNone, Size4Bytes, NoItinerary,
2845 "ldrexd", "\t$Rt, $Rt2, [$Rn]", "",
2848 let Inst{11-8} = Rt2{3-0};
2852 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2853 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2854 AddrModeNone, Size4Bytes, NoItinerary,
2855 "strexb", "\t$Rd, $Rt, [$Rn]", "", []>;
2856 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2857 AddrModeNone, Size4Bytes, NoItinerary,
2858 "strexh", "\t$Rd, $Rt, [$Rn]", "", []>;
2859 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, rGPR:$Rn),
2860 AddrModeNone, Size4Bytes, NoItinerary,
2861 "strex", "\t$Rd, $Rt, [$Rn]", "",
2863 let Inst{31-27} = 0b11101;
2864 let Inst{26-20} = 0b0000100;
2865 let Inst{7-0} = 0b00000000; // imm8 = 0
2867 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2868 (ins rGPR:$Rt, rGPR:$Rt2, rGPR:$Rn),
2869 AddrModeNone, Size4Bytes, NoItinerary,
2870 "strexd", "\t$Rd, $Rt, $Rt2, [$Rn]", "", [],
2873 let Inst{11-8} = Rt2{3-0};
2877 // Clear-Exclusive is for disassembly only.
2878 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2879 [/* For disassembly only; pattern left blank */]>,
2880 Requires<[IsARM, HasV7]> {
2881 let Inst{31-20} = 0xf3b;
2882 let Inst{15-14} = 0b10;
2884 let Inst{7-4} = 0b0010;
2887 //===----------------------------------------------------------------------===//
2891 // __aeabi_read_tp preserves the registers r1-r3.
2893 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
2894 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2895 "bl\t__aeabi_read_tp",
2896 [(set R0, ARMthread_pointer)]> {
2897 let Inst{31-27} = 0b11110;
2898 let Inst{15-14} = 0b11;
2903 //===----------------------------------------------------------------------===//
2904 // SJLJ Exception handling intrinsics
2905 // eh_sjlj_setjmp() is an instruction sequence to store the return
2906 // address and save #0 in R0 for the non-longjmp case.
2907 // Since by its nature we may be coming from some other function to get
2908 // here, and we're using the stack frame for the containing function to
2909 // save/restore registers, we can't keep anything live in regs across
2910 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2911 // when we get here from a longjmp(). We force everthing out of registers
2912 // except for our own input by listing the relevant registers in Defs. By
2913 // doing so, we also cause the prologue/epilogue code to actively preserve
2914 // all of the callee-saved resgisters, which is exactly what we want.
2915 // $val is a scratch register for our use.
2917 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2918 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2919 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2920 D31 ], hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2921 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2922 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2923 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2924 Requires<[IsThumb2, HasVFP2]>;
2928 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2929 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2930 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2931 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2932 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2933 Requires<[IsThumb2, NoVFP]>;
2937 //===----------------------------------------------------------------------===//
2938 // Control-Flow Instructions
2941 // FIXME: remove when we have a way to marking a MI with these properties.
2942 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2944 // FIXME: Should pc be an implicit operand like PICADD, etc?
2945 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2946 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2947 def t2LDMIA_RET: T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2948 reglist:$regs, variable_ops),
2950 "ldmia${p}.w\t$Rn!, $regs",
2955 let Inst{31-27} = 0b11101;
2956 let Inst{26-25} = 0b00;
2957 let Inst{24-23} = 0b01; // Increment After
2959 let Inst{21} = 1; // Writeback
2961 let Inst{19-16} = Rn;
2962 let Inst{15-0} = regs;
2965 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2966 let isPredicable = 1 in
2967 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2969 [(br bb:$target)]> {
2970 let Inst{31-27} = 0b11110;
2971 let Inst{15-14} = 0b10;
2975 let Inst{26} = target{19};
2976 let Inst{11} = target{18};
2977 let Inst{13} = target{17};
2978 let Inst{21-16} = target{16-11};
2979 let Inst{10-0} = target{10-0};
2982 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2983 def t2BR_JT : tPseudoInst<(outs),
2984 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
2985 SizeSpecial, IIC_Br,
2986 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
2988 // FIXME: Add a non-pc based case that can be predicated.
2989 def t2TBB_JT : tPseudoInst<(outs),
2990 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2991 SizeSpecial, IIC_Br, []>;
2993 def t2TBH_JT : tPseudoInst<(outs),
2994 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2995 SizeSpecial, IIC_Br, []>;
2997 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
2998 "tbb", "\t[$Rn, $Rm]", []> {
3001 let Inst{27-20} = 0b10001101;
3002 let Inst{19-16} = Rn;
3003 let Inst{15-5} = 0b11110000000;
3004 let Inst{4} = 0; // B form
3008 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3009 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3012 let Inst{27-20} = 0b10001101;
3013 let Inst{19-16} = Rn;
3014 let Inst{15-5} = 0b11110000000;
3015 let Inst{4} = 1; // H form
3018 } // isNotDuplicable, isIndirectBranch
3020 } // isBranch, isTerminator, isBarrier
3022 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3023 // a two-value operand where a dag node expects two operands. :(
3024 let isBranch = 1, isTerminator = 1 in
3025 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3027 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3028 let Inst{31-27} = 0b11110;
3029 let Inst{15-14} = 0b10;
3035 let Defs = [ITSTATE] in
3036 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3037 AddrModeNone, Size2Bytes, IIC_iALUx,
3038 "it$mask\t$cc", "", []> {
3039 // 16-bit instruction.
3040 let Inst{31-16} = 0x0000;
3041 let Inst{15-8} = 0b10111111;
3045 let Inst{7-4} = cc{3-0};
3046 let Inst{3-0} = mask{3-0};
3049 // Branch and Exchange Jazelle -- for disassembly only
3051 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3052 [/* For disassembly only; pattern left blank */]> {
3053 let Inst{31-27} = 0b11110;
3055 let Inst{25-20} = 0b111100;
3056 let Inst{15-14} = 0b10;
3060 let Inst{19-16} = func{3-0};
3063 // Change Processor State is a system instruction -- for disassembly only.
3064 // The singleton $opt operand contains the following information:
3065 // opt{4-0} = mode from Inst{4-0}
3066 // opt{5} = changemode from Inst{17}
3067 // opt{8-6} = AIF from Inst{8-6}
3068 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
3069 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
3070 [/* For disassembly only; pattern left blank */]> {
3071 let Inst{31-27} = 0b11110;
3073 let Inst{25-20} = 0b111010;
3074 let Inst{15-14} = 0b10;
3080 let Inst{4-0} = opt{4-0};
3083 let Inst{8} = opt{5};
3086 let Inst{5} = opt{6};
3089 let Inst{6} = opt{7};
3092 let Inst{7} = opt{8};
3095 let Inst{10-9} = opt{10-9};
3098 // A6.3.4 Branches and miscellaneous control
3099 // Table A6-14 Change Processor State, and hint instructions
3100 // Helper class for disassembly only.
3101 class T2I_hint<bits<8> op7_0, string opc, string asm>
3102 : T2I<(outs), (ins), NoItinerary, opc, asm,
3103 [/* For disassembly only; pattern left blank */]> {
3104 let Inst{31-20} = 0xf3a;
3105 let Inst{15-14} = 0b10;
3107 let Inst{10-8} = 0b000;
3108 let Inst{7-0} = op7_0;
3111 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3112 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3113 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3114 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3115 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3117 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
3118 [/* For disassembly only; pattern left blank */]> {
3119 let Inst{31-20} = 0xf3a;
3120 let Inst{15-14} = 0b10;
3122 let Inst{10-8} = 0b000;
3123 let Inst{7-4} = 0b1111;
3126 // Secure Monitor Call is a system instruction -- for disassembly only
3127 // Option = Inst{19-16}
3128 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
3129 [/* For disassembly only; pattern left blank */]> {
3130 let Inst{31-27} = 0b11110;
3131 let Inst{26-20} = 0b1111111;
3132 let Inst{15-12} = 0b1000;
3135 let Inst{19-16} = opt{3-0};
3138 class T2SRS<bits<12> op31_20,
3139 dag oops, dag iops, InstrItinClass itin,
3140 string opc, string asm, list<dag> pattern>
3141 : T2I<oops, iops, itin, opc, asm, pattern> {
3142 let Inst{31-20} = op31_20{11-0};
3145 let Inst{4-0} = mode{4-0};
3148 // Store Return State is a system instruction -- for disassembly only
3149 def t2SRSDBW : T2SRS<0b111010000010,
3150 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3151 [/* For disassembly only; pattern left blank */]>;
3152 def t2SRSDB : T2SRS<0b111010000000,
3153 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3154 [/* For disassembly only; pattern left blank */]>;
3155 def t2SRSIAW : T2SRS<0b111010011010,
3156 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3157 [/* For disassembly only; pattern left blank */]>;
3158 def t2SRSIA : T2SRS<0b111010011000,
3159 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3160 [/* For disassembly only; pattern left blank */]>;
3162 // Return From Exception is a system instruction -- for disassembly only
3164 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3165 string opc, string asm, list<dag> pattern>
3166 : T2I<oops, iops, itin, opc, asm, pattern> {
3167 let Inst{31-20} = op31_20{11-0};
3170 let Inst{19-16} = Rn{3-0};
3173 def t2RFEDBW : T2RFE<0b111010000011,
3174 (outs), (ins rGPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3175 [/* For disassembly only; pattern left blank */]>;
3176 def t2RFEDB : T2RFE<0b111010000001,
3177 (outs), (ins rGPR:$Rn), NoItinerary, "rfeab", "\t$Rn",
3178 [/* For disassembly only; pattern left blank */]>;
3179 def t2RFEIAW : T2RFE<0b111010011011,
3180 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3181 [/* For disassembly only; pattern left blank */]>;
3182 def t2RFEIA : T2RFE<0b111010011001,
3183 (outs), (ins rGPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3184 [/* For disassembly only; pattern left blank */]>;
3186 //===----------------------------------------------------------------------===//
3187 // Non-Instruction Patterns
3190 // 32-bit immediate using movw + movt.
3191 // This is a single pseudo instruction to make it re-materializable.
3192 // FIXME: Remove this when we can do generalized remat.
3193 let isReMaterializable = 1, isMoveImm = 1 in
3194 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3195 [(set rGPR:$dst, (i32 imm:$src))]>,
3196 Requires<[IsThumb, HasV6T2]>;
3198 // ConstantPool, GlobalAddress, and JumpTable
3199 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3200 Requires<[IsThumb2, DontUseMovt]>;
3201 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3202 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3203 Requires<[IsThumb2, UseMovt]>;
3205 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3206 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3208 // Pseudo instruction that combines ldr from constpool and add pc. This should
3209 // be expanded into two instructions late to allow if-conversion and
3211 let canFoldAsLoad = 1, isReMaterializable = 1 in
3212 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3214 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3216 Requires<[IsThumb2]>;
3218 //===----------------------------------------------------------------------===//
3219 // Move between special register and ARM core register -- for disassembly only
3222 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3223 dag oops, dag iops, InstrItinClass itin,
3224 string opc, string asm, list<dag> pattern>
3225 : T2I<oops, iops, itin, opc, asm, pattern> {
3226 let Inst{31-20} = op31_20{11-0};
3227 let Inst{15-14} = op15_14{1-0};
3228 let Inst{12} = op12{0};
3231 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3232 dag oops, dag iops, InstrItinClass itin,
3233 string opc, string asm, list<dag> pattern>
3234 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3236 let Inst{11-8} = Rd{3-0};
3239 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3240 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3241 [/* For disassembly only; pattern left blank */]>;
3242 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3243 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3244 [/* For disassembly only; pattern left blank */]>;
3246 class T2MSR<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3247 dag oops, dag iops, InstrItinClass itin,
3248 string opc, string asm, list<dag> pattern>
3249 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3252 let Inst{19-16} = Rn{3-0};
3253 let Inst{11-8} = mask{3-0};
3256 def t2MSR : T2MSR<0b111100111000, 0b10, 0,
3257 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3259 [/* For disassembly only; pattern left blank */]>;
3260 def t2MSRsys : T2MSR<0b111100111001, 0b10, 0,
3261 (outs), (ins rGPR:$Rn, msr_mask:$mask), NoItinerary, "msr",
3263 [/* For disassembly only; pattern left blank */]>;