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.
47 def t2_so_imm_asmoperand : AsmOperandClass { let Name = "T2SOImm"; }
48 def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{
49 return ARM_AM::getT2SOImmVal(Imm) != -1;
51 let ParserMatchClass = t2_so_imm_asmoperand;
52 let EncoderMethod = "getT2SOImmOpValue";
55 // t2_so_imm_not - Match an immediate that is a complement
57 def t2_so_imm_not : Operand<i32>,
59 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
60 }], t2_so_imm_not_XFORM>;
62 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
63 def t2_so_imm_neg : Operand<i32>,
65 return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
66 }], t2_so_imm_neg_XFORM>;
68 /// imm1_31 predicate - True if the 32-bit immediate is in the range [1,31].
69 def imm1_31 : ImmLeaf<i32, [{
70 return (int32_t)Imm >= 1 && (int32_t)Imm < 32;
73 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
74 def imm0_4095 : Operand<i32>,
76 return Imm >= 0 && Imm < 4096;
79 def imm0_4095_neg : PatLeaf<(i32 imm), [{
80 return (uint32_t)(-N->getZExtValue()) < 4096;
83 def imm0_255_neg : PatLeaf<(i32 imm), [{
84 return (uint32_t)(-N->getZExtValue()) < 255;
87 def imm0_255_not : PatLeaf<(i32 imm), [{
88 return (uint32_t)(~N->getZExtValue()) < 255;
91 def lo5AllOne : PatLeaf<(i32 imm), [{
92 // Returns true if all low 5-bits are 1.
93 return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL;
96 // Define Thumb2 specific addressing modes.
98 // t2addrmode_imm12 := reg + imm12
99 def t2addrmode_imm12 : Operand<i32>,
100 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
101 let PrintMethod = "printAddrModeImm12Operand";
102 let EncoderMethod = "getAddrModeImm12OpValue";
103 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
104 let ParserMatchClass = MemMode5AsmOperand;
107 // t2ldrlabel := imm12
108 def t2ldrlabel : Operand<i32> {
109 let EncoderMethod = "getAddrModeImm12OpValue";
113 // ADR instruction labels.
114 def t2adrlabel : Operand<i32> {
115 let EncoderMethod = "getT2AdrLabelOpValue";
119 // t2addrmode_imm8 := reg +/- imm8
120 def t2addrmode_imm8 : Operand<i32>,
121 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
122 let PrintMethod = "printT2AddrModeImm8Operand";
123 let EncoderMethod = "getT2AddrModeImm8OpValue";
124 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
125 let ParserMatchClass = MemMode5AsmOperand;
128 def t2am_imm8_offset : Operand<i32>,
129 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
130 [], [SDNPWantRoot]> {
131 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
132 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
133 let ParserMatchClass = MemMode5AsmOperand;
136 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
137 def t2addrmode_imm8s4 : Operand<i32> {
138 let PrintMethod = "printT2AddrModeImm8s4Operand";
139 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
140 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
141 let ParserMatchClass = MemMode5AsmOperand;
144 def t2am_imm8s4_offset : Operand<i32> {
145 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
148 // t2addrmode_so_reg := reg + (reg << imm2)
149 def t2addrmode_so_reg : Operand<i32>,
150 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
151 let PrintMethod = "printT2AddrModeSoRegOperand";
152 let EncoderMethod = "getT2AddrModeSORegOpValue";
153 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
154 let ParserMatchClass = MemMode5AsmOperand;
157 // t2addrmode_reg := reg
158 // Used by load/store exclusive instructions. Useful to enable right assembly
159 // parsing and printing. Not used for any codegen matching.
161 def t2addrmode_reg : Operand<i32> {
162 let PrintMethod = "printAddrMode7Operand";
163 let MIOperandInfo = (ops GPR);
164 let ParserMatchClass = MemMode7AsmOperand;
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> {
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> {
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;
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> {
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 : T2sI<oops, iops, itin, opc, asm, pattern> {
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;
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> {
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> {
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;
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> {
289 let Inst{19-16} = Rn;
290 let Inst{26} = imm{11};
291 let Inst{14-12} = imm{10-8};
292 let Inst{7-0} = imm{7-0};
295 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
296 string opc, string asm, list<dag> pattern>
297 : T2sI<oops, iops, itin, opc, asm, pattern> {
303 let Inst{19-16} = Rn;
304 let Inst{26} = imm{11};
305 let Inst{14-12} = imm{10-8};
306 let Inst{7-0} = imm{7-0};
309 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
310 string opc, string asm, list<dag> pattern>
311 : T2I<oops, iops, itin, opc, asm, pattern> {
318 let Inst{14-12} = imm{4-2};
319 let Inst{7-6} = imm{1-0};
322 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
323 string opc, string asm, list<dag> pattern>
324 : T2sI<oops, iops, itin, opc, asm, pattern> {
331 let Inst{14-12} = imm{4-2};
332 let Inst{7-6} = imm{1-0};
335 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
336 string opc, string asm, list<dag> pattern>
337 : T2I<oops, iops, itin, opc, asm, pattern> {
343 let Inst{19-16} = Rn;
347 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
348 string opc, string asm, list<dag> pattern>
349 : T2sI<oops, iops, itin, opc, asm, pattern> {
355 let Inst{19-16} = Rn;
359 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
360 string opc, string asm, list<dag> pattern>
361 : T2I<oops, iops, itin, opc, asm, pattern> {
367 let Inst{19-16} = Rn;
368 let Inst{3-0} = ShiftedRm{3-0};
369 let Inst{5-4} = ShiftedRm{6-5};
370 let Inst{14-12} = ShiftedRm{11-9};
371 let Inst{7-6} = ShiftedRm{8-7};
374 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
375 string opc, string asm, list<dag> pattern>
376 : T2sI<oops, iops, itin, opc, asm, pattern> {
382 let Inst{19-16} = Rn;
383 let Inst{3-0} = ShiftedRm{3-0};
384 let Inst{5-4} = ShiftedRm{6-5};
385 let Inst{14-12} = ShiftedRm{11-9};
386 let Inst{7-6} = ShiftedRm{8-7};
389 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
390 string opc, string asm, list<dag> pattern>
391 : T2I<oops, iops, itin, opc, asm, pattern> {
397 let Inst{19-16} = Rn;
398 let Inst{15-12} = Ra;
403 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
404 dag oops, dag iops, InstrItinClass itin,
405 string opc, string asm, list<dag> pattern>
406 : T2I<oops, iops, itin, opc, asm, pattern> {
412 let Inst{31-23} = 0b111110111;
413 let Inst{22-20} = opc22_20;
414 let Inst{19-16} = Rn;
415 let Inst{15-12} = RdLo;
416 let Inst{11-8} = RdHi;
417 let Inst{7-4} = opc7_4;
422 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
423 /// unary operation that produces a value. These are predicable and can be
424 /// changed to modify CPSR.
425 multiclass T2I_un_irs<bits<4> opcod, string opc,
426 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
427 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
429 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
431 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
432 let isAsCheapAsAMove = Cheap;
433 let isReMaterializable = ReMat;
434 let Inst{31-27} = 0b11110;
436 let Inst{24-21} = opcod;
437 let Inst{19-16} = 0b1111; // Rn
441 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
443 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
444 let Inst{31-27} = 0b11101;
445 let Inst{26-25} = 0b01;
446 let Inst{24-21} = opcod;
447 let Inst{19-16} = 0b1111; // Rn
448 let Inst{14-12} = 0b000; // imm3
449 let Inst{7-6} = 0b00; // imm2
450 let Inst{5-4} = 0b00; // type
453 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
454 opc, ".w\t$Rd, $ShiftedRm",
455 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
456 let Inst{31-27} = 0b11101;
457 let Inst{26-25} = 0b01;
458 let Inst{24-21} = opcod;
459 let Inst{19-16} = 0b1111; // Rn
463 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
464 /// binary operation that produces a value. These are predicable and can be
465 /// changed to modify CPSR.
466 multiclass T2I_bin_irs<bits<4> opcod, string opc,
467 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
468 PatFrag opnode, bit Commutable = 0, string wide = ""> {
470 def ri : T2sTwoRegImm<
471 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
472 opc, "\t$Rd, $Rn, $imm",
473 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
474 let Inst{31-27} = 0b11110;
476 let Inst{24-21} = opcod;
480 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
481 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
482 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
483 let isCommutable = Commutable;
484 let Inst{31-27} = 0b11101;
485 let Inst{26-25} = 0b01;
486 let Inst{24-21} = opcod;
487 let Inst{14-12} = 0b000; // imm3
488 let Inst{7-6} = 0b00; // imm2
489 let Inst{5-4} = 0b00; // type
492 def rs : T2sTwoRegShiftedReg<
493 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
494 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
495 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
496 let Inst{31-27} = 0b11101;
497 let Inst{26-25} = 0b01;
498 let Inst{24-21} = opcod;
502 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
503 // the ".w" prefix to indicate that they are wide.
504 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
505 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
506 PatFrag opnode, bit Commutable = 0> :
507 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w">;
509 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
510 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
511 /// it is equivalent to the T2I_bin_irs counterpart.
512 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
514 def ri : T2sTwoRegImm<
515 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
516 opc, ".w\t$Rd, $Rn, $imm",
517 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
518 let Inst{31-27} = 0b11110;
520 let Inst{24-21} = opcod;
524 def rr : T2sThreeReg<
525 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
526 opc, "\t$Rd, $Rn, $Rm",
527 [/* For disassembly only; pattern left blank */]> {
528 let Inst{31-27} = 0b11101;
529 let Inst{26-25} = 0b01;
530 let Inst{24-21} = opcod;
531 let Inst{14-12} = 0b000; // imm3
532 let Inst{7-6} = 0b00; // imm2
533 let Inst{5-4} = 0b00; // type
536 def rs : T2sTwoRegShiftedReg<
537 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
538 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
539 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
540 let Inst{31-27} = 0b11101;
541 let Inst{26-25} = 0b01;
542 let Inst{24-21} = opcod;
546 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
547 /// instruction modifies the CPSR register.
548 let isCodeGenOnly = 1, Defs = [CPSR] in {
549 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
550 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
551 PatFrag opnode, bit Commutable = 0> {
553 def ri : T2TwoRegImm<
554 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
555 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
556 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
557 let Inst{31-27} = 0b11110;
559 let Inst{24-21} = opcod;
560 let Inst{20} = 1; // The S bit.
565 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
566 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $Rm",
567 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
568 let isCommutable = Commutable;
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.
573 let Inst{14-12} = 0b000; // imm3
574 let Inst{7-6} = 0b00; // imm2
575 let Inst{5-4} = 0b00; // type
578 def rs : T2TwoRegShiftedReg<
579 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
580 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $ShiftedRm",
581 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
582 let Inst{31-27} = 0b11101;
583 let Inst{26-25} = 0b01;
584 let Inst{24-21} = opcod;
585 let Inst{20} = 1; // The S bit.
590 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
591 /// patterns for a binary operation that produces a value.
592 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
593 bit Commutable = 0> {
595 // The register-immediate version is re-materializable. This is useful
596 // in particular for taking the address of a local.
597 let isReMaterializable = 1 in {
598 def ri : T2sTwoRegImm<
599 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
600 opc, ".w\t$Rd, $Rn, $imm",
601 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
602 let Inst{31-27} = 0b11110;
605 let Inst{23-21} = op23_21;
611 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
612 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
613 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
617 let Inst{31-27} = 0b11110;
618 let Inst{26} = imm{11};
619 let Inst{25-24} = 0b10;
620 let Inst{23-21} = op23_21;
621 let Inst{20} = 0; // The S bit.
622 let Inst{19-16} = Rn;
624 let Inst{14-12} = imm{10-8};
626 let Inst{7-0} = imm{7-0};
629 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), IIC_iALUr,
630 opc, ".w\t$Rd, $Rn, $Rm",
631 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
632 let isCommutable = Commutable;
633 let Inst{31-27} = 0b11101;
634 let Inst{26-25} = 0b01;
636 let Inst{23-21} = op23_21;
637 let Inst{14-12} = 0b000; // imm3
638 let Inst{7-6} = 0b00; // imm2
639 let Inst{5-4} = 0b00; // type
642 def rs : T2sTwoRegShiftedReg<
643 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
644 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
645 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
646 let Inst{31-27} = 0b11101;
647 let Inst{26-25} = 0b01;
649 let Inst{23-21} = op23_21;
653 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
654 /// for a binary operation that produces a value and use the carry
655 /// bit. It's not predicable.
656 let Uses = [CPSR] in {
657 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
658 bit Commutable = 0> {
660 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
661 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
662 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
663 Requires<[IsThumb2]> {
664 let Inst{31-27} = 0b11110;
666 let Inst{24-21} = opcod;
670 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
671 opc, ".w\t$Rd, $Rn, $Rm",
672 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
673 Requires<[IsThumb2]> {
674 let isCommutable = Commutable;
675 let Inst{31-27} = 0b11101;
676 let Inst{26-25} = 0b01;
677 let Inst{24-21} = opcod;
678 let Inst{14-12} = 0b000; // imm3
679 let Inst{7-6} = 0b00; // imm2
680 let Inst{5-4} = 0b00; // type
683 def rs : T2sTwoRegShiftedReg<
684 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
685 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
686 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
687 Requires<[IsThumb2]> {
688 let Inst{31-27} = 0b11101;
689 let Inst{26-25} = 0b01;
690 let Inst{24-21} = opcod;
695 // Carry setting variants
696 // NOTE: CPSR def omitted because it will be handled by the custom inserter.
697 let usesCustomInserter = 1 in {
698 multiclass T2I_adde_sube_s_irs<PatFrag opnode, bit Commutable = 0> {
700 def ri : t2PseudoInst<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
701 Size4Bytes, IIC_iALUi,
702 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>;
704 def rr : t2PseudoInst<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
705 Size4Bytes, IIC_iALUr,
706 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
707 let isCommutable = Commutable;
710 def rs : t2PseudoInst<
711 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
712 Size4Bytes, IIC_iALUsi,
713 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>;
717 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
718 /// version is not needed since this is only for codegen.
719 let isCodeGenOnly = 1, Defs = [CPSR] in {
720 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
722 def ri : T2TwoRegImm<
723 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
724 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
725 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
726 let Inst{31-27} = 0b11110;
728 let Inst{24-21} = opcod;
729 let Inst{20} = 1; // The S bit.
733 def rs : T2TwoRegShiftedReg<
734 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
735 IIC_iALUsi, !strconcat(opc, "s"), "\t$Rd, $Rn, $ShiftedRm",
736 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
737 let Inst{31-27} = 0b11101;
738 let Inst{26-25} = 0b01;
739 let Inst{24-21} = opcod;
740 let Inst{20} = 1; // The S bit.
745 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
746 // rotate operation that produces a value.
747 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
749 def ri : T2sTwoRegShiftImm<
750 (outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$imm), IIC_iMOVsi,
751 opc, ".w\t$Rd, $Rm, $imm",
752 [(set rGPR:$Rd, (opnode rGPR:$Rm, imm1_31:$imm))]> {
753 let Inst{31-27} = 0b11101;
754 let Inst{26-21} = 0b010010;
755 let Inst{19-16} = 0b1111; // Rn
756 let Inst{5-4} = opcod;
759 def rr : T2sThreeReg<
760 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
761 opc, ".w\t$Rd, $Rn, $Rm",
762 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
763 let Inst{31-27} = 0b11111;
764 let Inst{26-23} = 0b0100;
765 let Inst{22-21} = opcod;
766 let Inst{15-12} = 0b1111;
767 let Inst{7-4} = 0b0000;
771 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
772 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
773 /// a explicit result, only implicitly set CPSR.
774 let isCompare = 1, Defs = [CPSR] in {
775 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
776 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
779 def ri : T2OneRegCmpImm<
780 (outs), (ins GPR:$Rn, t2_so_imm:$imm), iii,
781 opc, ".w\t$Rn, $imm",
782 [(opnode GPR:$Rn, t2_so_imm:$imm)]> {
783 let Inst{31-27} = 0b11110;
785 let Inst{24-21} = opcod;
786 let Inst{20} = 1; // The S bit.
788 let Inst{11-8} = 0b1111; // Rd
791 def rr : T2TwoRegCmp<
792 (outs), (ins GPR:$lhs, rGPR:$rhs), iir,
793 opc, ".w\t$lhs, $rhs",
794 [(opnode GPR:$lhs, rGPR:$rhs)]> {
795 let Inst{31-27} = 0b11101;
796 let Inst{26-25} = 0b01;
797 let Inst{24-21} = opcod;
798 let Inst{20} = 1; // The S bit.
799 let Inst{14-12} = 0b000; // imm3
800 let Inst{11-8} = 0b1111; // Rd
801 let Inst{7-6} = 0b00; // imm2
802 let Inst{5-4} = 0b00; // type
805 def rs : T2OneRegCmpShiftedReg<
806 (outs), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
807 opc, ".w\t$Rn, $ShiftedRm",
808 [(opnode GPR:$Rn, t2_so_reg:$ShiftedRm)]> {
809 let Inst{31-27} = 0b11101;
810 let Inst{26-25} = 0b01;
811 let Inst{24-21} = opcod;
812 let Inst{20} = 1; // The S bit.
813 let Inst{11-8} = 0b1111; // Rd
818 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
819 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
820 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
821 def i12 : T2Ii12<(outs GPR:$Rt), (ins t2addrmode_imm12:$addr), iii,
822 opc, ".w\t$Rt, $addr",
823 [(set GPR:$Rt, (opnode t2addrmode_imm12:$addr))]> {
824 let Inst{31-27} = 0b11111;
825 let Inst{26-25} = 0b00;
826 let Inst{24} = signed;
828 let Inst{22-21} = opcod;
829 let Inst{20} = 1; // load
832 let Inst{15-12} = Rt;
835 let addr{12} = 1; // add = TRUE
836 let Inst{19-16} = addr{16-13}; // Rn
837 let Inst{23} = addr{12}; // U
838 let Inst{11-0} = addr{11-0}; // imm
840 def i8 : T2Ii8 <(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), iii,
842 [(set GPR:$Rt, (opnode t2addrmode_imm8:$addr))]> {
843 let Inst{31-27} = 0b11111;
844 let Inst{26-25} = 0b00;
845 let Inst{24} = signed;
847 let Inst{22-21} = opcod;
848 let Inst{20} = 1; // load
850 // Offset: index==TRUE, wback==FALSE
851 let Inst{10} = 1; // The P bit.
852 let Inst{8} = 0; // The W bit.
855 let Inst{15-12} = Rt;
858 let Inst{19-16} = addr{12-9}; // Rn
859 let Inst{9} = addr{8}; // U
860 let Inst{7-0} = addr{7-0}; // imm
862 def s : T2Iso <(outs GPR:$Rt), (ins t2addrmode_so_reg:$addr), iis,
863 opc, ".w\t$Rt, $addr",
864 [(set GPR:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
865 let Inst{31-27} = 0b11111;
866 let Inst{26-25} = 0b00;
867 let Inst{24} = signed;
869 let Inst{22-21} = opcod;
870 let Inst{20} = 1; // load
871 let Inst{11-6} = 0b000000;
874 let Inst{15-12} = Rt;
877 let Inst{19-16} = addr{9-6}; // Rn
878 let Inst{3-0} = addr{5-2}; // Rm
879 let Inst{5-4} = addr{1-0}; // imm
882 // FIXME: Is the pci variant actually needed?
883 def pci : T2Ipc <(outs GPR:$Rt), (ins t2ldrlabel:$addr), iii,
884 opc, ".w\t$Rt, $addr",
885 [(set GPR:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
886 let isReMaterializable = 1;
887 let Inst{31-27} = 0b11111;
888 let Inst{26-25} = 0b00;
889 let Inst{24} = signed;
890 let Inst{23} = ?; // add = (U == '1')
891 let Inst{22-21} = opcod;
892 let Inst{20} = 1; // load
893 let Inst{19-16} = 0b1111; // Rn
896 let Inst{15-12} = Rt{3-0};
897 let Inst{11-0} = addr{11-0};
901 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
902 multiclass T2I_st<bits<2> opcod, string opc,
903 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
904 def i12 : T2Ii12<(outs), (ins GPR:$Rt, t2addrmode_imm12:$addr), iii,
905 opc, ".w\t$Rt, $addr",
906 [(opnode GPR:$Rt, t2addrmode_imm12:$addr)]> {
907 let Inst{31-27} = 0b11111;
908 let Inst{26-23} = 0b0001;
909 let Inst{22-21} = opcod;
910 let Inst{20} = 0; // !load
913 let Inst{15-12} = Rt;
916 let addr{12} = 1; // add = TRUE
917 let Inst{19-16} = addr{16-13}; // Rn
918 let Inst{23} = addr{12}; // U
919 let Inst{11-0} = addr{11-0}; // imm
921 def i8 : T2Ii8 <(outs), (ins GPR:$Rt, t2addrmode_imm8:$addr), iii,
923 [(opnode GPR:$Rt, t2addrmode_imm8:$addr)]> {
924 let Inst{31-27} = 0b11111;
925 let Inst{26-23} = 0b0000;
926 let Inst{22-21} = opcod;
927 let Inst{20} = 0; // !load
929 // Offset: index==TRUE, wback==FALSE
930 let Inst{10} = 1; // The P bit.
931 let Inst{8} = 0; // The W bit.
934 let Inst{15-12} = Rt;
937 let Inst{19-16} = addr{12-9}; // Rn
938 let Inst{9} = addr{8}; // U
939 let Inst{7-0} = addr{7-0}; // imm
941 def s : T2Iso <(outs), (ins GPR:$Rt, t2addrmode_so_reg:$addr), iis,
942 opc, ".w\t$Rt, $addr",
943 [(opnode GPR:$Rt, t2addrmode_so_reg:$addr)]> {
944 let Inst{31-27} = 0b11111;
945 let Inst{26-23} = 0b0000;
946 let Inst{22-21} = opcod;
947 let Inst{20} = 0; // !load
948 let Inst{11-6} = 0b000000;
951 let Inst{15-12} = Rt;
954 let Inst{19-16} = addr{9-6}; // Rn
955 let Inst{3-0} = addr{5-2}; // Rm
956 let Inst{5-4} = addr{1-0}; // imm
960 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
961 /// register and one whose operand is a register rotated by 8/16/24.
962 multiclass T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> {
963 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
965 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
966 let Inst{31-27} = 0b11111;
967 let Inst{26-23} = 0b0100;
968 let Inst{22-20} = opcod;
969 let Inst{19-16} = 0b1111; // Rn
970 let Inst{15-12} = 0b1111;
972 let Inst{5-4} = 0b00; // rotate
974 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
975 opc, ".w\t$Rd, $Rm, ror $rot",
976 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]> {
977 let Inst{31-27} = 0b11111;
978 let Inst{26-23} = 0b0100;
979 let Inst{22-20} = opcod;
980 let Inst{19-16} = 0b1111; // Rn
981 let Inst{15-12} = 0b1111;
985 let Inst{5-4} = rot{1-0}; // rotate
989 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
990 multiclass T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
991 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
993 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>,
994 Requires<[HasT2ExtractPack, IsThumb2]> {
995 let Inst{31-27} = 0b11111;
996 let Inst{26-23} = 0b0100;
997 let Inst{22-20} = opcod;
998 let Inst{19-16} = 0b1111; // Rn
999 let Inst{15-12} = 0b1111;
1001 let Inst{5-4} = 0b00; // rotate
1003 def r_rot : T2TwoReg<(outs rGPR:$dst), (ins rGPR:$Rm, rot_imm:$rot),
1004 IIC_iEXTr, opc, "\t$dst, $Rm, ror $rot",
1005 [(set rGPR:$dst, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1006 Requires<[HasT2ExtractPack, IsThumb2]> {
1007 let Inst{31-27} = 0b11111;
1008 let Inst{26-23} = 0b0100;
1009 let Inst{22-20} = opcod;
1010 let Inst{19-16} = 0b1111; // Rn
1011 let Inst{15-12} = 0b1111;
1015 let Inst{5-4} = rot{1-0}; // rotate
1019 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1021 multiclass T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> {
1022 def r : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iEXTr,
1023 opc, "\t$Rd, $Rm", []> {
1024 let Inst{31-27} = 0b11111;
1025 let Inst{26-23} = 0b0100;
1026 let Inst{22-20} = opcod;
1027 let Inst{19-16} = 0b1111; // Rn
1028 let Inst{15-12} = 0b1111;
1030 let Inst{5-4} = 0b00; // rotate
1032 def r_rot : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$rot), IIC_iEXTr,
1033 opc, "\t$Rd, $Rm, ror $rot", []> {
1034 let Inst{31-27} = 0b11111;
1035 let Inst{26-23} = 0b0100;
1036 let Inst{22-20} = opcod;
1037 let Inst{19-16} = 0b1111; // Rn
1038 let Inst{15-12} = 0b1111;
1042 let Inst{5-4} = rot{1-0}; // rotate
1046 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1047 /// register and one whose operand is a register rotated by 8/16/24.
1048 multiclass T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> {
1049 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1050 opc, "\t$Rd, $Rn, $Rm",
1051 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
1052 Requires<[HasT2ExtractPack, IsThumb2]> {
1053 let Inst{31-27} = 0b11111;
1054 let Inst{26-23} = 0b0100;
1055 let Inst{22-20} = opcod;
1056 let Inst{15-12} = 0b1111;
1058 let Inst{5-4} = 0b00; // rotate
1060 def rr_rot : T2ThreeReg<(outs rGPR:$Rd),
1061 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1062 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot",
1063 [(set rGPR:$Rd, (opnode rGPR:$Rn,
1064 (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1065 Requires<[HasT2ExtractPack, IsThumb2]> {
1066 let Inst{31-27} = 0b11111;
1067 let Inst{26-23} = 0b0100;
1068 let Inst{22-20} = opcod;
1069 let Inst{15-12} = 0b1111;
1073 let Inst{5-4} = rot{1-0}; // rotate
1077 // DO variant - disassembly only, no pattern
1079 multiclass T2I_exta_rrot_DO<bits<3> opcod, string opc> {
1080 def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iEXTAr,
1081 opc, "\t$Rd, $Rn, $Rm", []> {
1082 let Inst{31-27} = 0b11111;
1083 let Inst{26-23} = 0b0100;
1084 let Inst{22-20} = opcod;
1085 let Inst{15-12} = 0b1111;
1087 let Inst{5-4} = 0b00; // rotate
1089 def rr_rot :T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$rot),
1090 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm, ror $rot", []> {
1091 let Inst{31-27} = 0b11111;
1092 let Inst{26-23} = 0b0100;
1093 let Inst{22-20} = opcod;
1094 let Inst{15-12} = 0b1111;
1098 let Inst{5-4} = rot{1-0}; // rotate
1102 //===----------------------------------------------------------------------===//
1104 //===----------------------------------------------------------------------===//
1106 //===----------------------------------------------------------------------===//
1107 // Miscellaneous Instructions.
1110 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1111 string asm, list<dag> pattern>
1112 : T2XI<oops, iops, itin, asm, pattern> {
1116 let Inst{11-8} = Rd;
1117 let Inst{26} = label{11};
1118 let Inst{14-12} = label{10-8};
1119 let Inst{7-0} = label{7-0};
1122 // LEApcrel - Load a pc-relative address into a register without offending the
1124 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1125 (ins t2adrlabel:$addr, pred:$p),
1126 IIC_iALUi, "adr{$p}.w\t$Rd, #$addr", []> {
1127 let Inst{31-27} = 0b11110;
1128 let Inst{25-24} = 0b10;
1129 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1132 let Inst{19-16} = 0b1111; // Rn
1137 let Inst{11-8} = Rd;
1138 let Inst{23} = addr{12};
1139 let Inst{21} = addr{12};
1140 let Inst{26} = addr{11};
1141 let Inst{14-12} = addr{10-8};
1142 let Inst{7-0} = addr{7-0};
1145 let neverHasSideEffects = 1, isReMaterializable = 1 in
1146 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1147 Size4Bytes, IIC_iALUi, []>;
1148 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1149 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1150 Size4Bytes, IIC_iALUi,
1154 // FIXME: None of these add/sub SP special instructions should be necessary
1155 // at all for thumb2 since they use the same encodings as the generic
1156 // add/sub instructions. In thumb1 we need them since they have dedicated
1157 // encodings. At the least, they should be pseudo instructions.
1158 // ADD r, sp, {so_imm|i12}
1159 let isCodeGenOnly = 1 in {
1160 def t2ADDrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm),
1161 IIC_iALUi, "add", ".w\t$Rd, $Rn, $imm", []> {
1162 let Inst{31-27} = 0b11110;
1164 let Inst{24-21} = 0b1000;
1167 def t2ADDrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm),
1168 IIC_iALUi, "addw", "\t$Rd, $Rn, $imm", []> {
1169 let Inst{31-27} = 0b11110;
1170 let Inst{25-20} = 0b100000;
1174 // ADD r, sp, so_reg
1175 def t2ADDrSPs : T2sTwoRegShiftedReg<
1176 (outs GPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
1177 IIC_iALUsi, "add", ".w\t$Rd, $Rn, $ShiftedRm", []> {
1178 let Inst{31-27} = 0b11101;
1179 let Inst{26-25} = 0b01;
1180 let Inst{24-21} = 0b1000;
1184 // SUB r, sp, {so_imm|i12}
1185 def t2SUBrSPi : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm),
1186 IIC_iALUi, "sub", ".w\t$Rd, $Rn, $imm", []> {
1187 let Inst{31-27} = 0b11110;
1189 let Inst{24-21} = 0b1101;
1192 def t2SUBrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm),
1193 IIC_iALUi, "subw", "\t$Rd, $Rn, $imm", []> {
1194 let Inst{31-27} = 0b11110;
1195 let Inst{25-20} = 0b101010;
1199 // SUB r, sp, so_reg
1200 def t2SUBrSPs : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, t2_so_reg:$imm),
1202 "sub", "\t$Rd, $Rn, $imm", []> {
1203 let Inst{31-27} = 0b11101;
1204 let Inst{26-25} = 0b01;
1205 let Inst{24-21} = 0b1101;
1206 let Inst{19-16} = 0b1101; // Rn = sp
1209 } // end isCodeGenOnly = 1
1211 //===----------------------------------------------------------------------===//
1212 // Load / store Instructions.
1216 let canFoldAsLoad = 1, isReMaterializable = 1 in
1217 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
1218 UnOpFrag<(load node:$Src)>>;
1220 // Loads with zero extension
1221 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1222 UnOpFrag<(zextloadi16 node:$Src)>>;
1223 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1224 UnOpFrag<(zextloadi8 node:$Src)>>;
1226 // Loads with sign extension
1227 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1228 UnOpFrag<(sextloadi16 node:$Src)>>;
1229 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1230 UnOpFrag<(sextloadi8 node:$Src)>>;
1232 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1234 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1235 (ins t2addrmode_imm8s4:$addr),
1236 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", []>;
1237 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1239 // zextload i1 -> zextload i8
1240 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1241 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1242 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
1243 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1244 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1245 (t2LDRBs t2addrmode_so_reg:$addr)>;
1246 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1247 (t2LDRBpci tconstpool:$addr)>;
1249 // extload -> zextload
1250 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1252 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1253 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1254 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
1255 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1256 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1257 (t2LDRBs t2addrmode_so_reg:$addr)>;
1258 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1259 (t2LDRBpci tconstpool:$addr)>;
1261 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1262 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1263 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
1264 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1265 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1266 (t2LDRBs t2addrmode_so_reg:$addr)>;
1267 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1268 (t2LDRBpci tconstpool:$addr)>;
1270 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1271 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1272 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
1273 (t2LDRHi8 t2addrmode_imm8:$addr)>;
1274 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1275 (t2LDRHs t2addrmode_so_reg:$addr)>;
1276 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1277 (t2LDRHpci tconstpool:$addr)>;
1279 // FIXME: The destination register of the loads and stores can't be PC, but
1280 // can be SP. We need another regclass (similar to rGPR) to represent
1281 // that. Not a pressing issue since these are selected manually,
1286 let mayLoad = 1, neverHasSideEffects = 1 in {
1287 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1288 (ins t2addrmode_imm8:$addr),
1289 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1290 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1293 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1294 (ins GPR:$base, t2am_imm8_offset:$addr),
1295 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1296 "ldr", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1299 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1300 (ins t2addrmode_imm8:$addr),
1301 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1302 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1304 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1305 (ins GPR:$base, t2am_imm8_offset:$addr),
1306 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1307 "ldrb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1310 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1311 (ins t2addrmode_imm8:$addr),
1312 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1313 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1315 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1316 (ins GPR:$base, t2am_imm8_offset:$addr),
1317 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1318 "ldrh", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1321 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1322 (ins t2addrmode_imm8:$addr),
1323 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1324 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1326 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1327 (ins GPR:$base, t2am_imm8_offset:$addr),
1328 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1329 "ldrsb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1332 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1333 (ins t2addrmode_imm8:$addr),
1334 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1335 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1337 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$Rn),
1338 (ins GPR:$base, t2am_imm8_offset:$addr),
1339 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1340 "ldrsh", "\t$dst, [$Rn], $addr", "$base = $Rn",
1342 } // mayLoad = 1, neverHasSideEffects = 1
1344 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1345 // for disassembly only.
1346 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1347 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1348 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1349 "\t$Rt, $addr", []> {
1350 let Inst{31-27} = 0b11111;
1351 let Inst{26-25} = 0b00;
1352 let Inst{24} = signed;
1354 let Inst{22-21} = type;
1355 let Inst{20} = 1; // load
1357 let Inst{10-8} = 0b110; // PUW.
1361 let Inst{15-12} = Rt;
1362 let Inst{19-16} = addr{12-9};
1363 let Inst{7-0} = addr{7-0};
1366 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1367 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1368 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1369 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1370 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1373 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1374 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1375 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1376 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1377 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1378 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1381 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1382 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1383 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1384 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
1387 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1388 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1389 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1390 "str", "\t$Rt, [$Rn, $addr]!",
1391 "$Rn = $base_wb,@earlyclobber $base_wb",
1393 (pre_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1395 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1396 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1397 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1398 "str", "\t$Rt, [$Rn], $addr",
1399 "$Rn = $base_wb,@earlyclobber $base_wb",
1401 (post_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1403 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1404 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1405 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1406 "strh", "\t$Rt, [$Rn, $addr]!",
1407 "$Rn = $base_wb,@earlyclobber $base_wb",
1409 (pre_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1411 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1412 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1413 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1414 "strh", "\t$Rt, [$Rn], $addr",
1415 "$Rn = $base_wb,@earlyclobber $base_wb",
1417 (post_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1419 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1420 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1421 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1422 "strb", "\t$Rt, [$Rn, $addr]!",
1423 "$Rn = $base_wb,@earlyclobber $base_wb",
1425 (pre_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1427 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1428 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1429 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1430 "strb", "\t$Rt, [$Rn], $addr",
1431 "$Rn = $base_wb,@earlyclobber $base_wb",
1433 (post_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1435 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1437 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1438 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1439 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1440 "\t$Rt, $addr", []> {
1441 let Inst{31-27} = 0b11111;
1442 let Inst{26-25} = 0b00;
1443 let Inst{24} = 0; // not signed
1445 let Inst{22-21} = type;
1446 let Inst{20} = 0; // store
1448 let Inst{10-8} = 0b110; // PUW
1452 let Inst{15-12} = Rt;
1453 let Inst{19-16} = addr{12-9};
1454 let Inst{7-0} = addr{7-0};
1457 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1458 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1459 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1461 // ldrd / strd pre / post variants
1462 // For disassembly only.
1464 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1465 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1466 "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1468 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1469 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1470 "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
1472 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1473 (ins rGPR:$Rt, rGPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1474 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1476 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1477 (ins rGPR:$Rt, rGPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1478 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
1480 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1481 // data/instruction access. These are for disassembly only.
1482 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1483 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1484 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1486 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1488 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1489 let Inst{31-25} = 0b1111100;
1490 let Inst{24} = instr;
1492 let Inst{21} = write;
1494 let Inst{15-12} = 0b1111;
1497 let addr{12} = 1; // add = TRUE
1498 let Inst{19-16} = addr{16-13}; // Rn
1499 let Inst{23} = addr{12}; // U
1500 let Inst{11-0} = addr{11-0}; // imm12
1503 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1505 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1506 let Inst{31-25} = 0b1111100;
1507 let Inst{24} = instr;
1508 let Inst{23} = 0; // U = 0
1510 let Inst{21} = write;
1512 let Inst{15-12} = 0b1111;
1513 let Inst{11-8} = 0b1100;
1516 let Inst{19-16} = addr{12-9}; // Rn
1517 let Inst{7-0} = addr{7-0}; // imm8
1520 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1522 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1523 let Inst{31-25} = 0b1111100;
1524 let Inst{24} = instr;
1525 let Inst{23} = 0; // add = TRUE for T1
1527 let Inst{21} = write;
1529 let Inst{15-12} = 0b1111;
1530 let Inst{11-6} = 0000000;
1533 let Inst{19-16} = addr{9-6}; // Rn
1534 let Inst{3-0} = addr{5-2}; // Rm
1535 let Inst{5-4} = addr{1-0}; // imm2
1539 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1540 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1541 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1543 //===----------------------------------------------------------------------===//
1544 // Load / store multiple Instructions.
1547 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1548 InstrItinClass itin_upd, bit L_bit> {
1550 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1551 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1555 let Inst{31-27} = 0b11101;
1556 let Inst{26-25} = 0b00;
1557 let Inst{24-23} = 0b01; // Increment After
1559 let Inst{21} = 0; // No writeback
1560 let Inst{20} = L_bit;
1561 let Inst{19-16} = Rn;
1562 let Inst{15-0} = regs;
1565 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1566 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1570 let Inst{31-27} = 0b11101;
1571 let Inst{26-25} = 0b00;
1572 let Inst{24-23} = 0b01; // Increment After
1574 let Inst{21} = 1; // Writeback
1575 let Inst{20} = L_bit;
1576 let Inst{19-16} = Rn;
1577 let Inst{15-0} = regs;
1580 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1581 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1585 let Inst{31-27} = 0b11101;
1586 let Inst{26-25} = 0b00;
1587 let Inst{24-23} = 0b10; // Decrement Before
1589 let Inst{21} = 0; // No writeback
1590 let Inst{20} = L_bit;
1591 let Inst{19-16} = Rn;
1592 let Inst{15-0} = regs;
1595 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1596 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1600 let Inst{31-27} = 0b11101;
1601 let Inst{26-25} = 0b00;
1602 let Inst{24-23} = 0b10; // Decrement Before
1604 let Inst{21} = 1; // Writeback
1605 let Inst{20} = L_bit;
1606 let Inst{19-16} = Rn;
1607 let Inst{15-0} = regs;
1611 let neverHasSideEffects = 1 in {
1613 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1614 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1616 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1617 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1619 } // neverHasSideEffects
1622 //===----------------------------------------------------------------------===//
1623 // Move Instructions.
1626 let neverHasSideEffects = 1 in
1627 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1628 "mov", ".w\t$Rd, $Rm", []> {
1629 let Inst{31-27} = 0b11101;
1630 let Inst{26-25} = 0b01;
1631 let Inst{24-21} = 0b0010;
1632 let Inst{19-16} = 0b1111; // Rn
1633 let Inst{14-12} = 0b000;
1634 let Inst{7-4} = 0b0000;
1637 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1638 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1639 AddedComplexity = 1 in
1640 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1641 "mov", ".w\t$Rd, $imm",
1642 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1643 let Inst{31-27} = 0b11110;
1645 let Inst{24-21} = 0b0010;
1646 let Inst{19-16} = 0b1111; // Rn
1650 def : InstAlias<"mov${s}${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1651 pred:$p, cc_out:$s)>,
1652 Requires<[IsThumb2]>;
1654 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1655 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins i32imm_hilo16:$imm), IIC_iMOVi,
1656 "movw", "\t$Rd, $imm",
1657 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1658 let Inst{31-27} = 0b11110;
1660 let Inst{24-21} = 0b0010;
1661 let Inst{20} = 0; // The S bit.
1667 let Inst{11-8} = Rd;
1668 let Inst{19-16} = imm{15-12};
1669 let Inst{26} = imm{11};
1670 let Inst{14-12} = imm{10-8};
1671 let Inst{7-0} = imm{7-0};
1674 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1675 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1677 let Constraints = "$src = $Rd" in {
1678 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1679 (ins rGPR:$src, i32imm_hilo16:$imm), IIC_iMOVi,
1680 "movt", "\t$Rd, $imm",
1682 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1683 let Inst{31-27} = 0b11110;
1685 let Inst{24-21} = 0b0110;
1686 let Inst{20} = 0; // The S bit.
1692 let Inst{11-8} = Rd;
1693 let Inst{19-16} = imm{15-12};
1694 let Inst{26} = imm{11};
1695 let Inst{14-12} = imm{10-8};
1696 let Inst{7-0} = imm{7-0};
1699 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1700 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1703 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1705 //===----------------------------------------------------------------------===//
1706 // Extend Instructions.
1711 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1712 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1713 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1714 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1715 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1717 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1718 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1719 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1720 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1721 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1723 // TODO: SXT(A){B|H}16 - done for disassembly only
1727 let AddedComplexity = 16 in {
1728 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1729 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1730 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1731 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1732 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1733 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1735 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1736 // The transformation should probably be done as a combiner action
1737 // instead so we can include a check for masking back in the upper
1738 // eight bits of the source into the lower eight bits of the result.
1739 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1740 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1741 // Requires<[HasT2ExtractPack, IsThumb2]>;
1742 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1743 (t2UXTB16r_rot rGPR:$Src, 8)>,
1744 Requires<[HasT2ExtractPack, IsThumb2]>;
1746 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1747 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1748 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1749 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1750 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1753 //===----------------------------------------------------------------------===//
1754 // Arithmetic Instructions.
1757 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1758 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1759 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1760 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1762 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1763 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1764 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1765 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1766 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1767 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1768 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1770 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1771 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1772 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1773 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1774 defm t2ADCS : T2I_adde_sube_s_irs<BinOpFrag<(adde_live_carry node:$LHS,
1776 defm t2SBCS : T2I_adde_sube_s_irs<BinOpFrag<(sube_live_carry node:$LHS,
1780 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1781 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1782 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1783 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1785 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1786 // The assume-no-carry-in form uses the negation of the input since add/sub
1787 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1788 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1790 // The AddedComplexity preferences the first variant over the others since
1791 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1792 let AddedComplexity = 1 in
1793 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1794 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1795 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1796 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1797 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1798 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1799 let AddedComplexity = 1 in
1800 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1801 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1802 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1803 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1804 // The with-carry-in form matches bitwise not instead of the negation.
1805 // Effectively, the inverse interpretation of the carry flag already accounts
1806 // for part of the negation.
1807 let AddedComplexity = 1 in
1808 def : T2Pat<(adde_dead_carry rGPR:$src, imm0_255_not:$imm),
1809 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
1810 def : T2Pat<(adde_dead_carry rGPR:$src, t2_so_imm_not:$imm),
1811 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
1812 let AddedComplexity = 1 in
1813 def : T2Pat<(adde_live_carry rGPR:$src, imm0_255_not:$imm),
1814 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1815 def : T2Pat<(adde_live_carry rGPR:$src, t2_so_imm_not:$imm),
1816 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1818 // Select Bytes -- for disassembly only
1820 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1821 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []> {
1822 let Inst{31-27} = 0b11111;
1823 let Inst{26-24} = 0b010;
1825 let Inst{22-20} = 0b010;
1826 let Inst{15-12} = 0b1111;
1828 let Inst{6-4} = 0b000;
1831 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1832 // And Miscellaneous operations -- for disassembly only
1833 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1834 list<dag> pat = [/* For disassembly only; pattern left blank */],
1835 dag iops = (ins rGPR:$Rn, rGPR:$Rm),
1836 string asm = "\t$Rd, $Rn, $Rm">
1837 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat> {
1838 let Inst{31-27} = 0b11111;
1839 let Inst{26-23} = 0b0101;
1840 let Inst{22-20} = op22_20;
1841 let Inst{15-12} = 0b1111;
1842 let Inst{7-4} = op7_4;
1848 let Inst{11-8} = Rd;
1849 let Inst{19-16} = Rn;
1853 // Saturating add/subtract -- for disassembly only
1855 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1856 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))],
1857 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1858 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1859 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1860 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1861 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [],
1862 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1863 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [],
1864 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1865 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1866 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1867 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))],
1868 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1869 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1870 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1871 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1872 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1873 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1874 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1875 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1876 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1878 // Signed/Unsigned add/subtract -- for disassembly only
1880 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1881 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1882 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1883 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1884 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1885 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1886 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1887 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1888 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1889 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1890 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1891 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1893 // Signed/Unsigned halving add/subtract -- for disassembly only
1895 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1896 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1897 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1898 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1899 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1900 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1901 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1902 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1903 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1904 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1905 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1906 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1908 // Helper class for disassembly only
1909 // A6.3.16 & A6.3.17
1910 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1911 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1912 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1913 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1914 let Inst{31-27} = 0b11111;
1915 let Inst{26-24} = 0b011;
1916 let Inst{23} = long;
1917 let Inst{22-20} = op22_20;
1918 let Inst{7-4} = op7_4;
1921 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1922 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1923 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1924 let Inst{31-27} = 0b11111;
1925 let Inst{26-24} = 0b011;
1926 let Inst{23} = long;
1927 let Inst{22-20} = op22_20;
1928 let Inst{7-4} = op7_4;
1931 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1933 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1934 (ins rGPR:$Rn, rGPR:$Rm),
1935 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []> {
1936 let Inst{15-12} = 0b1111;
1938 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1939 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1940 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>;
1942 // Signed/Unsigned saturate -- for disassembly only
1944 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1945 string opc, string asm, list<dag> pattern>
1946 : T2I<oops, iops, itin, opc, asm, pattern> {
1952 let Inst{11-8} = Rd;
1953 let Inst{19-16} = Rn;
1954 let Inst{4-0} = sat_imm{4-0};
1955 let Inst{21} = sh{6};
1956 let Inst{14-12} = sh{4-2};
1957 let Inst{7-6} = sh{1-0};
1961 (outs rGPR:$Rd), (ins ssat_imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1962 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1963 [/* For disassembly only; pattern left blank */]> {
1964 let Inst{31-27} = 0b11110;
1965 let Inst{25-22} = 0b1100;
1970 def t2SSAT16: T2SatI<
1971 (outs rGPR:$Rd), (ins ssat_imm:$sat_imm, rGPR:$Rn), NoItinerary,
1972 "ssat16", "\t$Rd, $sat_imm, $Rn",
1973 [/* For disassembly only; pattern left blank */]> {
1974 let Inst{31-27} = 0b11110;
1975 let Inst{25-22} = 0b1100;
1978 let Inst{21} = 1; // sh = '1'
1979 let Inst{14-12} = 0b000; // imm3 = '000'
1980 let Inst{7-6} = 0b00; // imm2 = '00'
1984 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1985 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
1986 [/* For disassembly only; pattern left blank */]> {
1987 let Inst{31-27} = 0b11110;
1988 let Inst{25-22} = 0b1110;
1993 def t2USAT16: T2SatI<(outs rGPR:$dst), (ins i32imm:$sat_imm, rGPR:$Rn),
1995 "usat16", "\t$dst, $sat_imm, $Rn",
1996 [/* For disassembly only; pattern left blank */]> {
1997 let Inst{31-27} = 0b11110;
1998 let Inst{25-22} = 0b1110;
2001 let Inst{21} = 1; // sh = '1'
2002 let Inst{14-12} = 0b000; // imm3 = '000'
2003 let Inst{7-6} = 0b00; // imm2 = '00'
2006 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2007 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2009 //===----------------------------------------------------------------------===//
2010 // Shift and rotate Instructions.
2013 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2014 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2015 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2016 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2018 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
2019 def : Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
2020 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
2022 let Uses = [CPSR] in {
2023 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2024 "rrx", "\t$Rd, $Rm",
2025 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2026 let Inst{31-27} = 0b11101;
2027 let Inst{26-25} = 0b01;
2028 let Inst{24-21} = 0b0010;
2029 let Inst{19-16} = 0b1111; // Rn
2030 let Inst{14-12} = 0b000;
2031 let Inst{7-4} = 0b0011;
2035 let isCodeGenOnly = 1, Defs = [CPSR] in {
2036 def t2MOVsrl_flag : T2TwoRegShiftImm<
2037 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2038 "lsrs", ".w\t$Rd, $Rm, #1",
2039 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2040 let Inst{31-27} = 0b11101;
2041 let Inst{26-25} = 0b01;
2042 let Inst{24-21} = 0b0010;
2043 let Inst{20} = 1; // The S bit.
2044 let Inst{19-16} = 0b1111; // Rn
2045 let Inst{5-4} = 0b01; // Shift type.
2046 // Shift amount = Inst{14-12:7-6} = 1.
2047 let Inst{14-12} = 0b000;
2048 let Inst{7-6} = 0b01;
2050 def t2MOVsra_flag : T2TwoRegShiftImm<
2051 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2052 "asrs", ".w\t$Rd, $Rm, #1",
2053 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2054 let Inst{31-27} = 0b11101;
2055 let Inst{26-25} = 0b01;
2056 let Inst{24-21} = 0b0010;
2057 let Inst{20} = 1; // The S bit.
2058 let Inst{19-16} = 0b1111; // Rn
2059 let Inst{5-4} = 0b10; // Shift type.
2060 // Shift amount = Inst{14-12:7-6} = 1.
2061 let Inst{14-12} = 0b000;
2062 let Inst{7-6} = 0b01;
2066 //===----------------------------------------------------------------------===//
2067 // Bitwise Instructions.
2070 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2071 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2072 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2073 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2074 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2075 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2076 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2077 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2078 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2080 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2081 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2082 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2084 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2085 string opc, string asm, list<dag> pattern>
2086 : T2I<oops, iops, itin, opc, asm, pattern> {
2091 let Inst{11-8} = Rd;
2092 let Inst{4-0} = msb{4-0};
2093 let Inst{14-12} = lsb{4-2};
2094 let Inst{7-6} = lsb{1-0};
2097 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2098 string opc, string asm, list<dag> pattern>
2099 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2102 let Inst{19-16} = Rn;
2105 let Constraints = "$src = $Rd" in
2106 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2107 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2108 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2109 let Inst{31-27} = 0b11110;
2110 let Inst{26} = 0; // should be 0.
2112 let Inst{24-20} = 0b10110;
2113 let Inst{19-16} = 0b1111; // Rn
2115 let Inst{5} = 0; // should be 0.
2118 let msb{4-0} = imm{9-5};
2119 let lsb{4-0} = imm{4-0};
2122 def t2SBFX: T2TwoRegBitFI<
2123 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2124 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2125 let Inst{31-27} = 0b11110;
2127 let Inst{24-20} = 0b10100;
2131 def t2UBFX: T2TwoRegBitFI<
2132 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm0_31_m1:$msb),
2133 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2134 let Inst{31-27} = 0b11110;
2136 let Inst{24-20} = 0b11100;
2140 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2141 let Constraints = "$src = $Rd" in {
2142 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2143 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2144 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2145 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2146 bf_inv_mask_imm:$imm))]> {
2147 let Inst{31-27} = 0b11110;
2148 let Inst{26} = 0; // should be 0.
2150 let Inst{24-20} = 0b10110;
2152 let Inst{5} = 0; // should be 0.
2155 let msb{4-0} = imm{9-5};
2156 let lsb{4-0} = imm{4-0};
2159 // GNU as only supports this form of bfi (w/ 4 arguments)
2160 let isAsmParserOnly = 1 in
2161 def t2BFI4p : T2TwoRegBitFI<(outs rGPR:$Rd),
2162 (ins rGPR:$src, rGPR:$Rn, lsb_pos_imm:$lsbit,
2164 IIC_iBITi, "bfi", "\t$Rd, $Rn, $lsbit, $width",
2166 let Inst{31-27} = 0b11110;
2167 let Inst{26} = 0; // should be 0.
2169 let Inst{24-20} = 0b10110;
2171 let Inst{5} = 0; // should be 0.
2175 let msb{4-0} = width; // Custom encoder => lsb+width-1
2176 let lsb{4-0} = lsbit;
2180 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2181 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2182 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2184 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2185 let AddedComplexity = 1 in
2186 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2187 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2188 UnOpFrag<(not node:$Src)>, 1, 1>;
2191 let AddedComplexity = 1 in
2192 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2193 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2195 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2196 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2197 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2198 Requires<[IsThumb2]>;
2200 def : T2Pat<(t2_so_imm_not:$src),
2201 (t2MVNi t2_so_imm_not:$src)>;
2203 //===----------------------------------------------------------------------===//
2204 // Multiply Instructions.
2206 let isCommutable = 1 in
2207 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2208 "mul", "\t$Rd, $Rn, $Rm",
2209 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2210 let Inst{31-27} = 0b11111;
2211 let Inst{26-23} = 0b0110;
2212 let Inst{22-20} = 0b000;
2213 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2214 let Inst{7-4} = 0b0000; // Multiply
2217 def t2MLA: T2FourReg<
2218 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2219 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2220 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2221 let Inst{31-27} = 0b11111;
2222 let Inst{26-23} = 0b0110;
2223 let Inst{22-20} = 0b000;
2224 let Inst{7-4} = 0b0000; // Multiply
2227 def t2MLS: T2FourReg<
2228 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2229 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2230 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2231 let Inst{31-27} = 0b11111;
2232 let Inst{26-23} = 0b0110;
2233 let Inst{22-20} = 0b000;
2234 let Inst{7-4} = 0b0001; // Multiply and Subtract
2237 // Extra precision multiplies with low / high results
2238 let neverHasSideEffects = 1 in {
2239 let isCommutable = 1 in {
2240 def t2SMULL : T2MulLong<0b000, 0b0000,
2241 (outs rGPR:$Rd, rGPR:$Ra),
2242 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2243 "smull", "\t$Rd, $Ra, $Rn, $Rm", []>;
2245 def t2UMULL : T2MulLong<0b010, 0b0000,
2246 (outs rGPR:$RdLo, rGPR:$RdHi),
2247 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2248 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2251 // Multiply + accumulate
2252 def t2SMLAL : T2MulLong<0b100, 0b0000,
2253 (outs rGPR:$RdLo, rGPR:$RdHi),
2254 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2255 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2257 def t2UMLAL : T2MulLong<0b110, 0b0000,
2258 (outs rGPR:$RdLo, rGPR:$RdHi),
2259 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2260 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2262 def t2UMAAL : T2MulLong<0b110, 0b0110,
2263 (outs rGPR:$RdLo, rGPR:$RdHi),
2264 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2265 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2266 } // neverHasSideEffects
2268 // Rounding variants of the below included for disassembly only
2270 // Most significant word multiply
2271 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2272 "smmul", "\t$Rd, $Rn, $Rm",
2273 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]> {
2274 let Inst{31-27} = 0b11111;
2275 let Inst{26-23} = 0b0110;
2276 let Inst{22-20} = 0b101;
2277 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2278 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2281 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2282 "smmulr", "\t$Rd, $Rn, $Rm", []> {
2283 let Inst{31-27} = 0b11111;
2284 let Inst{26-23} = 0b0110;
2285 let Inst{22-20} = 0b101;
2286 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2287 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2290 def t2SMMLA : T2FourReg<
2291 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2292 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2293 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]> {
2294 let Inst{31-27} = 0b11111;
2295 let Inst{26-23} = 0b0110;
2296 let Inst{22-20} = 0b101;
2297 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2300 def t2SMMLAR: T2FourReg<
2301 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2302 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []> {
2303 let Inst{31-27} = 0b11111;
2304 let Inst{26-23} = 0b0110;
2305 let Inst{22-20} = 0b101;
2306 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2309 def t2SMMLS: T2FourReg<
2310 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2311 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2312 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]> {
2313 let Inst{31-27} = 0b11111;
2314 let Inst{26-23} = 0b0110;
2315 let Inst{22-20} = 0b110;
2316 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2319 def t2SMMLSR:T2FourReg<
2320 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2321 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []> {
2322 let Inst{31-27} = 0b11111;
2323 let Inst{26-23} = 0b0110;
2324 let Inst{22-20} = 0b110;
2325 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2328 multiclass T2I_smul<string opc, PatFrag opnode> {
2329 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2330 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2331 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2332 (sext_inreg rGPR:$Rm, i16)))]> {
2333 let Inst{31-27} = 0b11111;
2334 let Inst{26-23} = 0b0110;
2335 let Inst{22-20} = 0b001;
2336 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2337 let Inst{7-6} = 0b00;
2338 let Inst{5-4} = 0b00;
2341 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2342 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2343 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2344 (sra rGPR:$Rm, (i32 16))))]> {
2345 let Inst{31-27} = 0b11111;
2346 let Inst{26-23} = 0b0110;
2347 let Inst{22-20} = 0b001;
2348 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2349 let Inst{7-6} = 0b00;
2350 let Inst{5-4} = 0b01;
2353 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2354 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2355 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2356 (sext_inreg rGPR:$Rm, i16)))]> {
2357 let Inst{31-27} = 0b11111;
2358 let Inst{26-23} = 0b0110;
2359 let Inst{22-20} = 0b001;
2360 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2361 let Inst{7-6} = 0b00;
2362 let Inst{5-4} = 0b10;
2365 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2366 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2367 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2368 (sra rGPR:$Rm, (i32 16))))]> {
2369 let Inst{31-27} = 0b11111;
2370 let Inst{26-23} = 0b0110;
2371 let Inst{22-20} = 0b001;
2372 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2373 let Inst{7-6} = 0b00;
2374 let Inst{5-4} = 0b11;
2377 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2378 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2379 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2380 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]> {
2381 let Inst{31-27} = 0b11111;
2382 let Inst{26-23} = 0b0110;
2383 let Inst{22-20} = 0b011;
2384 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2385 let Inst{7-6} = 0b00;
2386 let Inst{5-4} = 0b00;
2389 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2390 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2391 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2392 (sra rGPR:$Rm, (i32 16))), (i32 16)))]> {
2393 let Inst{31-27} = 0b11111;
2394 let Inst{26-23} = 0b0110;
2395 let Inst{22-20} = 0b011;
2396 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2397 let Inst{7-6} = 0b00;
2398 let Inst{5-4} = 0b01;
2403 multiclass T2I_smla<string opc, PatFrag opnode> {
2405 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2406 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2407 [(set rGPR:$Rd, (add rGPR:$Ra,
2408 (opnode (sext_inreg rGPR:$Rn, i16),
2409 (sext_inreg rGPR:$Rm, i16))))]> {
2410 let Inst{31-27} = 0b11111;
2411 let Inst{26-23} = 0b0110;
2412 let Inst{22-20} = 0b001;
2413 let Inst{7-6} = 0b00;
2414 let Inst{5-4} = 0b00;
2418 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2419 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2420 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2421 (sra rGPR:$Rm, (i32 16)))))]> {
2422 let Inst{31-27} = 0b11111;
2423 let Inst{26-23} = 0b0110;
2424 let Inst{22-20} = 0b001;
2425 let Inst{7-6} = 0b00;
2426 let Inst{5-4} = 0b01;
2430 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2431 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2432 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2433 (sext_inreg rGPR:$Rm, i16))))]> {
2434 let Inst{31-27} = 0b11111;
2435 let Inst{26-23} = 0b0110;
2436 let Inst{22-20} = 0b001;
2437 let Inst{7-6} = 0b00;
2438 let Inst{5-4} = 0b10;
2442 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2443 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2444 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2445 (sra rGPR:$Rm, (i32 16)))))]> {
2446 let Inst{31-27} = 0b11111;
2447 let Inst{26-23} = 0b0110;
2448 let Inst{22-20} = 0b001;
2449 let Inst{7-6} = 0b00;
2450 let Inst{5-4} = 0b11;
2454 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2455 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2456 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2457 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]> {
2458 let Inst{31-27} = 0b11111;
2459 let Inst{26-23} = 0b0110;
2460 let Inst{22-20} = 0b011;
2461 let Inst{7-6} = 0b00;
2462 let Inst{5-4} = 0b00;
2466 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2467 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2468 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2469 (sra rGPR:$Rm, (i32 16))), (i32 16))))]> {
2470 let Inst{31-27} = 0b11111;
2471 let Inst{26-23} = 0b0110;
2472 let Inst{22-20} = 0b011;
2473 let Inst{7-6} = 0b00;
2474 let Inst{5-4} = 0b01;
2478 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2479 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2481 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2482 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2483 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2484 [/* For disassembly only; pattern left blank */]>;
2485 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2486 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2487 [/* For disassembly only; pattern left blank */]>;
2488 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2489 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2490 [/* For disassembly only; pattern left blank */]>;
2491 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2492 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2493 [/* For disassembly only; pattern left blank */]>;
2495 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2496 // These are for disassembly only.
2498 def t2SMUAD: T2ThreeReg_mac<
2499 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2500 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []> {
2501 let Inst{15-12} = 0b1111;
2503 def t2SMUADX:T2ThreeReg_mac<
2504 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2505 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []> {
2506 let Inst{15-12} = 0b1111;
2508 def t2SMUSD: T2ThreeReg_mac<
2509 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2510 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []> {
2511 let Inst{15-12} = 0b1111;
2513 def t2SMUSDX:T2ThreeReg_mac<
2514 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2515 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []> {
2516 let Inst{15-12} = 0b1111;
2518 def t2SMLAD : T2ThreeReg_mac<
2519 0, 0b010, 0b0000, (outs rGPR:$Rd),
2520 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2521 "\t$Rd, $Rn, $Rm, $Ra", []>;
2522 def t2SMLADX : T2FourReg_mac<
2523 0, 0b010, 0b0001, (outs rGPR:$Rd),
2524 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2525 "\t$Rd, $Rn, $Rm, $Ra", []>;
2526 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2527 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2528 "\t$Rd, $Rn, $Rm, $Ra", []>;
2529 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2530 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2531 "\t$Rd, $Rn, $Rm, $Ra", []>;
2532 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2533 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2534 "\t$Ra, $Rd, $Rm, $Rn", []>;
2535 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2536 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2537 "\t$Ra, $Rd, $Rm, $Rn", []>;
2538 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2539 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2540 "\t$Ra, $Rd, $Rm, $Rn", []>;
2541 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2542 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2543 "\t$Ra, $Rd, $Rm, $Rn", []>;
2545 //===----------------------------------------------------------------------===//
2546 // Division Instructions.
2547 // Signed and unsigned division on v7-M
2549 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2550 "sdiv", "\t$Rd, $Rn, $Rm",
2551 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
2552 Requires<[HasDivide, IsThumb2]> {
2553 let Inst{31-27} = 0b11111;
2554 let Inst{26-21} = 0b011100;
2556 let Inst{15-12} = 0b1111;
2557 let Inst{7-4} = 0b1111;
2560 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2561 "udiv", "\t$Rd, $Rn, $Rm",
2562 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
2563 Requires<[HasDivide, IsThumb2]> {
2564 let Inst{31-27} = 0b11111;
2565 let Inst{26-21} = 0b011101;
2567 let Inst{15-12} = 0b1111;
2568 let Inst{7-4} = 0b1111;
2571 //===----------------------------------------------------------------------===//
2572 // Misc. Arithmetic Instructions.
2575 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2576 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2577 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2578 let Inst{31-27} = 0b11111;
2579 let Inst{26-22} = 0b01010;
2580 let Inst{21-20} = op1;
2581 let Inst{15-12} = 0b1111;
2582 let Inst{7-6} = 0b10;
2583 let Inst{5-4} = op2;
2587 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2588 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2590 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2591 "rbit", "\t$Rd, $Rm",
2592 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2594 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2595 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2597 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2598 "rev16", ".w\t$Rd, $Rm",
2599 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>;
2601 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2602 "revsh", ".w\t$Rd, $Rm",
2603 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>;
2605 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
2606 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
2607 (t2REVSH rGPR:$Rm)>;
2609 def t2PKHBT : T2ThreeReg<
2610 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2611 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2612 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2613 (and (shl rGPR:$Rm, lsl_amt:$sh),
2615 Requires<[HasT2ExtractPack, IsThumb2]> {
2616 let Inst{31-27} = 0b11101;
2617 let Inst{26-25} = 0b01;
2618 let Inst{24-20} = 0b01100;
2619 let Inst{5} = 0; // BT form
2623 let Inst{14-12} = sh{7-5};
2624 let Inst{7-6} = sh{4-3};
2627 // Alternate cases for PKHBT where identities eliminate some nodes.
2628 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2629 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2630 Requires<[HasT2ExtractPack, IsThumb2]>;
2631 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2632 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2633 Requires<[HasT2ExtractPack, IsThumb2]>;
2635 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2636 // will match the pattern below.
2637 def t2PKHTB : T2ThreeReg<
2638 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh),
2639 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2640 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2641 (and (sra rGPR:$Rm, asr_amt:$sh),
2643 Requires<[HasT2ExtractPack, IsThumb2]> {
2644 let Inst{31-27} = 0b11101;
2645 let Inst{26-25} = 0b01;
2646 let Inst{24-20} = 0b01100;
2647 let Inst{5} = 1; // TB form
2651 let Inst{14-12} = sh{7-5};
2652 let Inst{7-6} = sh{4-3};
2655 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2656 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2657 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2658 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2659 Requires<[HasT2ExtractPack, IsThumb2]>;
2660 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2661 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2662 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2663 Requires<[HasT2ExtractPack, IsThumb2]>;
2665 //===----------------------------------------------------------------------===//
2666 // Comparison Instructions...
2668 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2669 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2670 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2672 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_imm:$imm),
2673 (t2CMPri GPR:$lhs, t2_so_imm:$imm)>;
2674 def : T2Pat<(ARMcmpZ GPR:$lhs, rGPR:$rhs),
2675 (t2CMPrr GPR:$lhs, rGPR:$rhs)>;
2676 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_reg:$rhs),
2677 (t2CMPrs GPR:$lhs, t2_so_reg:$rhs)>;
2679 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2680 // Compare-to-zero still works out, just not the relationals
2681 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2682 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2683 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2684 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2685 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2687 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2688 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2690 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2691 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2693 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2694 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2695 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2696 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2697 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2698 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2700 // Conditional moves
2701 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2702 // a two-value operand where a dag node expects two operands. :(
2703 let neverHasSideEffects = 1 in {
2704 def t2MOVCCr : T2TwoReg<
2705 (outs rGPR:$Rd), (ins rGPR:$false, rGPR:$Rm), IIC_iCMOVr,
2706 "mov", ".w\t$Rd, $Rm",
2707 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2708 RegConstraint<"$false = $Rd"> {
2709 let Inst{31-27} = 0b11101;
2710 let Inst{26-25} = 0b01;
2711 let Inst{24-21} = 0b0010;
2712 let Inst{20} = 0; // The S bit.
2713 let Inst{19-16} = 0b1111; // Rn
2714 let Inst{14-12} = 0b000;
2715 let Inst{7-4} = 0b0000;
2718 // FIXME: Pseudo-ize these. For now, just mark codegen only.
2719 let isCodeGenOnly = 1 in {
2720 let isMoveImm = 1 in
2721 def t2MOVCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2722 IIC_iCMOVi, "mov", ".w\t$Rd, $imm",
2723 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2724 RegConstraint<"$false = $Rd"> {
2725 let Inst{31-27} = 0b11110;
2727 let Inst{24-21} = 0b0010;
2728 let Inst{20} = 0; // The S bit.
2729 let Inst{19-16} = 0b1111; // Rn
2733 let isMoveImm = 1 in
2734 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, i32imm_hilo16:$imm),
2736 "movw", "\t$Rd, $imm", []>,
2737 RegConstraint<"$false = $Rd"> {
2738 let Inst{31-27} = 0b11110;
2740 let Inst{24-21} = 0b0010;
2741 let Inst{20} = 0; // The S bit.
2747 let Inst{11-8} = Rd;
2748 let Inst{19-16} = imm{15-12};
2749 let Inst{26} = imm{11};
2750 let Inst{14-12} = imm{10-8};
2751 let Inst{7-0} = imm{7-0};
2754 let isMoveImm = 1 in
2755 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2756 (ins rGPR:$false, i32imm:$src, pred:$p),
2757 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2759 let isMoveImm = 1 in
2760 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2761 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2762 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2763 imm:$cc, CCR:$ccr))*/]>,
2764 RegConstraint<"$false = $Rd"> {
2765 let Inst{31-27} = 0b11110;
2767 let Inst{24-21} = 0b0011;
2768 let Inst{20} = 0; // The S bit.
2769 let Inst{19-16} = 0b1111; // Rn
2773 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2774 string opc, string asm, list<dag> pattern>
2775 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2776 let Inst{31-27} = 0b11101;
2777 let Inst{26-25} = 0b01;
2778 let Inst{24-21} = 0b0010;
2779 let Inst{20} = 0; // The S bit.
2780 let Inst{19-16} = 0b1111; // Rn
2781 let Inst{5-4} = opcod; // Shift type.
2783 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2784 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2785 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2786 RegConstraint<"$false = $Rd">;
2787 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2788 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2789 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2790 RegConstraint<"$false = $Rd">;
2791 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2792 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2793 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2794 RegConstraint<"$false = $Rd">;
2795 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2796 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2797 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2798 RegConstraint<"$false = $Rd">;
2799 } // neverHasSideEffects
2800 } // isCodeGenOnly = 1
2802 //===----------------------------------------------------------------------===//
2803 // Atomic operations intrinsics
2806 // memory barriers protect the atomic sequences
2807 let hasSideEffects = 1 in {
2808 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2809 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2810 Requires<[IsThumb, HasDB]> {
2812 let Inst{31-4} = 0xf3bf8f5;
2813 let Inst{3-0} = opt;
2817 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2819 [/* For disassembly only; pattern left blank */]>,
2820 Requires<[IsThumb, HasDB]> {
2822 let Inst{31-4} = 0xf3bf8f4;
2823 let Inst{3-0} = opt;
2826 // ISB has only full system option -- for disassembly only
2827 def t2ISB : AInoP<(outs), (ins), ThumbFrm, NoItinerary, "isb", "",
2828 [/* For disassembly only; pattern left blank */]>,
2829 Requires<[IsThumb2, HasV7]> {
2830 let Inst{31-4} = 0xf3bf8f6;
2831 let Inst{3-0} = 0b1111;
2834 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2835 InstrItinClass itin, string opc, string asm, string cstr,
2836 list<dag> pattern, bits<4> rt2 = 0b1111>
2837 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2838 let Inst{31-27} = 0b11101;
2839 let Inst{26-20} = 0b0001101;
2840 let Inst{11-8} = rt2;
2841 let Inst{7-6} = 0b01;
2842 let Inst{5-4} = opcod;
2843 let Inst{3-0} = 0b1111;
2847 let Inst{19-16} = addr;
2848 let Inst{15-12} = Rt;
2850 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2851 InstrItinClass itin, string opc, string asm, string cstr,
2852 list<dag> pattern, bits<4> rt2 = 0b1111>
2853 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2854 let Inst{31-27} = 0b11101;
2855 let Inst{26-20} = 0b0001100;
2856 let Inst{11-8} = rt2;
2857 let Inst{7-6} = 0b01;
2858 let Inst{5-4} = opcod;
2864 let Inst{19-16} = addr;
2865 let Inst{15-12} = Rt;
2868 let mayLoad = 1 in {
2869 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2870 AddrModeNone, Size4Bytes, NoItinerary,
2871 "ldrexb", "\t$Rt, $addr", "", []>;
2872 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2873 AddrModeNone, Size4Bytes, NoItinerary,
2874 "ldrexh", "\t$Rt, $addr", "", []>;
2875 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2876 AddrModeNone, Size4Bytes, NoItinerary,
2877 "ldrex", "\t$Rt, $addr", "", []> {
2878 let Inst{31-27} = 0b11101;
2879 let Inst{26-20} = 0b0000101;
2880 let Inst{11-8} = 0b1111;
2881 let Inst{7-0} = 0b00000000; // imm8 = 0
2885 let Inst{19-16} = addr;
2886 let Inst{15-12} = Rt;
2888 let hasExtraDefRegAllocReq = 1 in
2889 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
2890 (ins t2addrmode_reg:$addr),
2891 AddrModeNone, Size4Bytes, NoItinerary,
2892 "ldrexd", "\t$Rt, $Rt2, $addr", "",
2895 let Inst{11-8} = Rt2;
2899 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2900 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
2901 (ins rGPR:$Rt, t2addrmode_reg:$addr),
2902 AddrModeNone, Size4Bytes, NoItinerary,
2903 "strexb", "\t$Rd, $Rt, $addr", "", []>;
2904 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
2905 (ins rGPR:$Rt, t2addrmode_reg:$addr),
2906 AddrModeNone, Size4Bytes, NoItinerary,
2907 "strexh", "\t$Rd, $Rt, $addr", "", []>;
2908 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, t2addrmode_reg:$addr),
2909 AddrModeNone, Size4Bytes, NoItinerary,
2910 "strex", "\t$Rd, $Rt, $addr", "",
2912 let Inst{31-27} = 0b11101;
2913 let Inst{26-20} = 0b0000100;
2914 let Inst{7-0} = 0b00000000; // imm8 = 0
2919 let Inst{11-8} = Rd;
2920 let Inst{19-16} = addr;
2921 let Inst{15-12} = Rt;
2925 let hasExtraSrcRegAllocReq = 1, Constraints = "@earlyclobber $Rd" in
2926 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2927 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_reg:$addr),
2928 AddrModeNone, Size4Bytes, NoItinerary,
2929 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
2932 let Inst{11-8} = Rt2;
2935 // Clear-Exclusive is for disassembly only.
2936 def t2CLREX : T2XI<(outs), (ins), NoItinerary, "clrex",
2937 [/* For disassembly only; pattern left blank */]>,
2938 Requires<[IsThumb2, HasV7]> {
2939 let Inst{31-16} = 0xf3bf;
2940 let Inst{15-14} = 0b10;
2943 let Inst{11-8} = 0b1111;
2944 let Inst{7-4} = 0b0010;
2945 let Inst{3-0} = 0b1111;
2948 //===----------------------------------------------------------------------===//
2952 // __aeabi_read_tp preserves the registers r1-r3.
2954 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
2955 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2956 "bl\t__aeabi_read_tp",
2957 [(set R0, ARMthread_pointer)]> {
2958 let Inst{31-27} = 0b11110;
2959 let Inst{15-14} = 0b11;
2964 //===----------------------------------------------------------------------===//
2965 // SJLJ Exception handling intrinsics
2966 // eh_sjlj_setjmp() is an instruction sequence to store the return
2967 // address and save #0 in R0 for the non-longjmp case.
2968 // Since by its nature we may be coming from some other function to get
2969 // here, and we're using the stack frame for the containing function to
2970 // save/restore registers, we can't keep anything live in regs across
2971 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2972 // when we get here from a longjmp(). We force everything out of registers
2973 // except for our own input by listing the relevant registers in Defs. By
2974 // doing so, we also cause the prologue/epilogue code to actively preserve
2975 // all of the callee-saved resgisters, which is exactly what we want.
2976 // $val is a scratch register for our use.
2978 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
2979 QQQQ0, QQQQ1, QQQQ2, QQQQ3 ],
2980 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2981 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2982 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2983 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2984 Requires<[IsThumb2, HasVFP2]>;
2988 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
2989 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2990 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2991 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2992 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2993 Requires<[IsThumb2, NoVFP]>;
2997 //===----------------------------------------------------------------------===//
2998 // Control-Flow Instructions
3001 // FIXME: remove when we have a way to marking a MI with these properties.
3002 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
3004 // FIXME: Should pc be an implicit operand like PICADD, etc?
3005 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
3006 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
3007 def t2LDMIA_RET: T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
3008 reglist:$regs, variable_ops),
3010 "ldmia${p}.w\t$Rn!, $regs",
3015 let Inst{31-27} = 0b11101;
3016 let Inst{26-25} = 0b00;
3017 let Inst{24-23} = 0b01; // Increment After
3019 let Inst{21} = 1; // Writeback
3021 let Inst{19-16} = Rn;
3022 let Inst{15-0} = regs;
3025 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
3026 let isPredicable = 1 in
3027 def t2B : T2XI<(outs), (ins uncondbrtarget:$target), IIC_Br,
3029 [(br bb:$target)]> {
3030 let Inst{31-27} = 0b11110;
3031 let Inst{15-14} = 0b10;
3035 let Inst{26} = target{19};
3036 let Inst{11} = target{18};
3037 let Inst{13} = target{17};
3038 let Inst{21-16} = target{16-11};
3039 let Inst{10-0} = target{10-0};
3042 let isNotDuplicable = 1, isIndirectBranch = 1 in {
3043 def t2BR_JT : t2PseudoInst<(outs),
3044 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3045 SizeSpecial, IIC_Br,
3046 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
3048 // FIXME: Add a non-pc based case that can be predicated.
3049 def t2TBB_JT : t2PseudoInst<(outs),
3050 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3051 SizeSpecial, IIC_Br, []>;
3053 def t2TBH_JT : t2PseudoInst<(outs),
3054 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3055 SizeSpecial, IIC_Br, []>;
3057 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3058 "tbb", "\t[$Rn, $Rm]", []> {
3061 let Inst{31-20} = 0b111010001101;
3062 let Inst{19-16} = Rn;
3063 let Inst{15-5} = 0b11110000000;
3064 let Inst{4} = 0; // B form
3068 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3069 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3072 let Inst{31-20} = 0b111010001101;
3073 let Inst{19-16} = Rn;
3074 let Inst{15-5} = 0b11110000000;
3075 let Inst{4} = 1; // H form
3078 } // isNotDuplicable, isIndirectBranch
3080 } // isBranch, isTerminator, isBarrier
3082 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3083 // a two-value operand where a dag node expects two operands. :(
3084 let isBranch = 1, isTerminator = 1 in
3085 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3087 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3088 let Inst{31-27} = 0b11110;
3089 let Inst{15-14} = 0b10;
3093 let Inst{25-22} = p;
3096 let Inst{26} = target{20};
3097 let Inst{11} = target{19};
3098 let Inst{13} = target{18};
3099 let Inst{21-16} = target{17-12};
3100 let Inst{10-0} = target{11-1};
3105 let Defs = [ITSTATE] in
3106 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3107 AddrModeNone, Size2Bytes, IIC_iALUx,
3108 "it$mask\t$cc", "", []> {
3109 // 16-bit instruction.
3110 let Inst{31-16} = 0x0000;
3111 let Inst{15-8} = 0b10111111;
3116 let Inst{3-0} = mask;
3119 // Branch and Exchange Jazelle -- for disassembly only
3121 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3122 [/* For disassembly only; pattern left blank */]> {
3123 let Inst{31-27} = 0b11110;
3125 let Inst{25-20} = 0b111100;
3126 let Inst{15-14} = 0b10;
3130 let Inst{19-16} = func;
3133 // Change Processor State is a system instruction -- for disassembly and
3135 // FIXME: Since the asm parser has currently no clean way to handle optional
3136 // operands, create 3 versions of the same instruction. Once there's a clean
3137 // framework to represent optional operands, change this behavior.
3138 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3139 !strconcat("cps", asm_op),
3140 [/* For disassembly only; pattern left blank */]> {
3146 let Inst{31-27} = 0b11110;
3148 let Inst{25-20} = 0b111010;
3149 let Inst{19-16} = 0b1111;
3150 let Inst{15-14} = 0b10;
3152 let Inst{10-9} = imod;
3154 let Inst{7-5} = iflags;
3155 let Inst{4-0} = mode;
3159 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3160 "$imod.w\t$iflags, $mode">;
3161 let mode = 0, M = 0 in
3162 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3163 "$imod.w\t$iflags">;
3164 let imod = 0, iflags = 0, M = 1 in
3165 def t2CPS1p : t2CPS<(ins i32imm:$mode), "\t$mode">;
3167 // A6.3.4 Branches and miscellaneous control
3168 // Table A6-14 Change Processor State, and hint instructions
3169 // Helper class for disassembly only.
3170 class T2I_hint<bits<8> op7_0, string opc, string asm>
3171 : T2I<(outs), (ins), NoItinerary, opc, asm,
3172 [/* For disassembly only; pattern left blank */]> {
3173 let Inst{31-20} = 0xf3a;
3174 let Inst{19-16} = 0b1111;
3175 let Inst{15-14} = 0b10;
3177 let Inst{10-8} = 0b000;
3178 let Inst{7-0} = op7_0;
3181 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3182 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3183 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3184 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3185 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3187 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
3188 [/* For disassembly only; pattern left blank */]> {
3189 let Inst{31-20} = 0xf3a;
3190 let Inst{15-14} = 0b10;
3192 let Inst{10-8} = 0b000;
3193 let Inst{7-4} = 0b1111;
3196 let Inst{3-0} = opt;
3199 // Secure Monitor Call is a system instruction -- for disassembly only
3200 // Option = Inst{19-16}
3201 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
3202 [/* For disassembly only; pattern left blank */]> {
3203 let Inst{31-27} = 0b11110;
3204 let Inst{26-20} = 0b1111111;
3205 let Inst{15-12} = 0b1000;
3208 let Inst{19-16} = opt;
3211 class T2SRS<bits<12> op31_20,
3212 dag oops, dag iops, InstrItinClass itin,
3213 string opc, string asm, list<dag> pattern>
3214 : T2I<oops, iops, itin, opc, asm, pattern> {
3215 let Inst{31-20} = op31_20{11-0};
3218 let Inst{4-0} = mode{4-0};
3221 // Store Return State is a system instruction -- for disassembly only
3222 def t2SRSDBW : T2SRS<0b111010000010,
3223 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3224 [/* For disassembly only; pattern left blank */]>;
3225 def t2SRSDB : T2SRS<0b111010000000,
3226 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3227 [/* For disassembly only; pattern left blank */]>;
3228 def t2SRSIAW : T2SRS<0b111010011010,
3229 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3230 [/* For disassembly only; pattern left blank */]>;
3231 def t2SRSIA : T2SRS<0b111010011000,
3232 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3233 [/* For disassembly only; pattern left blank */]>;
3235 // Return From Exception is a system instruction -- for disassembly only
3237 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3238 string opc, string asm, list<dag> pattern>
3239 : T2I<oops, iops, itin, opc, asm, pattern> {
3240 let Inst{31-20} = op31_20{11-0};
3243 let Inst{19-16} = Rn;
3244 let Inst{15-0} = 0xc000;
3247 def t2RFEDBW : T2RFE<0b111010000011,
3248 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3249 [/* For disassembly only; pattern left blank */]>;
3250 def t2RFEDB : T2RFE<0b111010000001,
3251 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3252 [/* For disassembly only; pattern left blank */]>;
3253 def t2RFEIAW : T2RFE<0b111010011011,
3254 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3255 [/* For disassembly only; pattern left blank */]>;
3256 def t2RFEIA : T2RFE<0b111010011001,
3257 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3258 [/* For disassembly only; pattern left blank */]>;
3260 //===----------------------------------------------------------------------===//
3261 // Non-Instruction Patterns
3264 // 32-bit immediate using movw + movt.
3265 // This is a single pseudo instruction to make it re-materializable.
3266 // FIXME: Remove this when we can do generalized remat.
3267 let isReMaterializable = 1, isMoveImm = 1 in
3268 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3269 [(set rGPR:$dst, (i32 imm:$src))]>,
3270 Requires<[IsThumb, HasV6T2]>;
3272 // Pseudo instruction that combines movw + movt + add pc (if pic).
3273 // It also makes it possible to rematerialize the instructions.
3274 // FIXME: Remove this when we can do generalized remat and when machine licm
3275 // can properly the instructions.
3276 let isReMaterializable = 1 in {
3277 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3279 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3280 Requires<[IsThumb2, UseMovt]>;
3282 def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3284 [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3285 Requires<[IsThumb2, UseMovt]>;
3288 // ConstantPool, GlobalAddress, and JumpTable
3289 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3290 Requires<[IsThumb2, DontUseMovt]>;
3291 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3292 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3293 Requires<[IsThumb2, UseMovt]>;
3295 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3296 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3298 // Pseudo instruction that combines ldr from constpool and add pc. This should
3299 // be expanded into two instructions late to allow if-conversion and
3301 let canFoldAsLoad = 1, isReMaterializable = 1 in
3302 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3304 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3306 Requires<[IsThumb2]>;
3308 //===----------------------------------------------------------------------===//
3309 // Move between special register and ARM core register -- for disassembly only
3312 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3313 dag oops, dag iops, InstrItinClass itin,
3314 string opc, string asm, list<dag> pattern>
3315 : T2I<oops, iops, itin, opc, asm, pattern> {
3316 let Inst{31-20} = op31_20{11-0};
3317 let Inst{15-14} = op15_14{1-0};
3318 let Inst{12} = op12{0};
3321 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3322 dag oops, dag iops, InstrItinClass itin,
3323 string opc, string asm, list<dag> pattern>
3324 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3326 let Inst{11-8} = Rd;
3327 let Inst{19-16} = 0b1111;
3330 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3331 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3332 [/* For disassembly only; pattern left blank */]>;
3333 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3334 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3335 [/* For disassembly only; pattern left blank */]>;
3337 // Move from ARM core register to Special Register
3339 // No need to have both system and application versions, the encodings are the
3340 // same and the assembly parser has no way to distinguish between them. The mask
3341 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3342 // the mask with the fields to be accessed in the special register.
3343 def t2MSR : T2SpecialReg<0b111100111000 /* op31-20 */, 0b10 /* op15-14 */,
3344 0 /* op12 */, (outs), (ins msr_mask:$mask, rGPR:$Rn),
3345 NoItinerary, "msr", "\t$mask, $Rn",
3346 [/* For disassembly only; pattern left blank */]> {
3349 let Inst{19-16} = Rn;
3350 let Inst{20} = mask{4}; // R Bit
3352 let Inst{11-8} = mask{3-0};
3355 //===----------------------------------------------------------------------===//
3356 // Move between coprocessor and ARM core register -- for disassembly only
3359 class t2MovRCopro<string opc, bit direction, dag oops, dag iops,
3361 : T2Cop<oops, iops, !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3363 let Inst{27-24} = 0b1110;
3364 let Inst{20} = direction;
3374 let Inst{15-12} = Rt;
3375 let Inst{11-8} = cop;
3376 let Inst{23-21} = opc1;
3377 let Inst{7-5} = opc2;
3378 let Inst{3-0} = CRm;
3379 let Inst{19-16} = CRn;
3382 def t2MCR2 : t2MovRCopro<"mcr2", 0 /* from ARM core register to coprocessor */,
3383 (outs), (ins p_imm:$cop, i32imm:$opc1, GPR:$Rt, c_imm:$CRn,
3384 c_imm:$CRm, i32imm:$opc2),
3385 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3386 imm:$CRm, imm:$opc2)]>;
3387 def t2MRC2 : t2MovRCopro<"mrc2", 1 /* from coprocessor to ARM core register */,
3388 (outs GPR:$Rt), (ins p_imm:$cop, i32imm:$opc1, c_imm:$CRn,
3389 c_imm:$CRm, i32imm:$opc2), []>;
3391 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn,
3392 imm:$CRm, imm:$opc2),
3393 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3395 class t2MovRRCopro<string opc, bit direction,
3396 list<dag> pattern = [/* For disassembly only */]>
3397 : T2Cop<(outs), (ins p_imm:$cop, i32imm:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3398 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
3399 let Inst{27-24} = 0b1100;
3400 let Inst{23-21} = 0b010;
3401 let Inst{20} = direction;
3409 let Inst{15-12} = Rt;
3410 let Inst{19-16} = Rt2;
3411 let Inst{11-8} = cop;
3412 let Inst{7-4} = opc1;
3413 let Inst{3-0} = CRm;
3416 def t2MCRR2 : t2MovRRCopro<"mcrr2",
3417 0 /* from ARM core register to coprocessor */,
3418 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
3419 GPR:$Rt2, imm:$CRm)]>;
3420 def t2MRRC2 : t2MovRRCopro<"mrrc2",
3421 1 /* from coprocessor to ARM core register */>;
3423 //===----------------------------------------------------------------------===//
3424 // Other Coprocessor Instructions. For disassembly only.
3427 def t2CDP2 : T2Cop<(outs), (ins p_imm:$cop, i32imm:$opc1,
3428 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, i32imm:$opc2),
3429 "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3430 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3431 imm:$CRm, imm:$opc2)]> {
3432 let Inst{27-24} = 0b1110;
3441 let Inst{3-0} = CRm;
3443 let Inst{7-5} = opc2;
3444 let Inst{11-8} = cop;
3445 let Inst{15-12} = CRd;
3446 let Inst{19-16} = CRn;
3447 let Inst{23-20} = opc1;