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_asmoperand : AsmOperandClass {
16 let Name = "ITCondCode";
17 let ParserMethod = "parseITCondCode";
19 def it_pred : Operand<i32> {
20 let PrintMethod = "printMandatoryPredicateOperand";
21 let ParserMatchClass = it_pred_asmoperand;
24 // IT block condition mask
25 def it_mask_asmoperand : AsmOperandClass { let Name = "ITMask"; }
26 def it_mask : Operand<i32> {
27 let PrintMethod = "printThumbITMask";
28 let ParserMatchClass = it_mask_asmoperand;
31 // Shifted operands. No register controlled shifts for Thumb2.
32 // Note: We do not support rrx shifted operands yet.
33 def t2_so_reg : Operand<i32>, // reg imm
34 ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
36 let EncoderMethod = "getT2SORegOpValue";
37 let PrintMethod = "printT2SOOperand";
38 let DecoderMethod = "DecodeSORegImmOperand";
39 let ParserMatchClass = ShiftedImmAsmOperand;
40 let MIOperandInfo = (ops rGPR, i32imm);
43 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
44 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
45 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
48 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
49 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
50 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), MVT::i32);
53 // t2_so_imm - Match a 32-bit immediate operand, which is an
54 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
55 // immediate splatted into multiple bytes of the word.
56 def t2_so_imm_asmoperand : AsmOperandClass { let Name = "T2SOImm"; }
57 def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{
58 return ARM_AM::getT2SOImmVal(Imm) != -1;
60 let ParserMatchClass = t2_so_imm_asmoperand;
61 let EncoderMethod = "getT2SOImmOpValue";
62 let DecoderMethod = "DecodeT2SOImm";
65 // t2_so_imm_not - Match an immediate that is a complement
67 def t2_so_imm_not : Operand<i32>,
69 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
70 }], t2_so_imm_not_XFORM>;
72 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
73 def t2_so_imm_neg : Operand<i32>,
75 return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
76 }], t2_so_imm_neg_XFORM>;
78 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
79 def imm0_4095 : Operand<i32>,
81 return Imm >= 0 && Imm < 4096;
84 def imm0_4095_neg : PatLeaf<(i32 imm), [{
85 return (uint32_t)(-N->getZExtValue()) < 4096;
88 def imm0_255_neg : PatLeaf<(i32 imm), [{
89 return (uint32_t)(-N->getZExtValue()) < 255;
92 def imm0_255_not : PatLeaf<(i32 imm), [{
93 return (uint32_t)(~N->getZExtValue()) < 255;
96 def lo5AllOne : PatLeaf<(i32 imm), [{
97 // Returns true if all low 5-bits are 1.
98 return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL;
101 // Define Thumb2 specific addressing modes.
103 // t2addrmode_imm12 := reg + imm12
104 def t2addrmode_imm12_asmoperand : AsmOperandClass {let Name="MemUImm12Offset";}
105 def t2addrmode_imm12 : Operand<i32>,
106 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
107 let PrintMethod = "printAddrModeImm12Operand";
108 let EncoderMethod = "getAddrModeImm12OpValue";
109 let DecoderMethod = "DecodeT2AddrModeImm12";
110 let ParserMatchClass = t2addrmode_imm12_asmoperand;
111 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
114 // t2ldrlabel := imm12
115 def t2ldrlabel : Operand<i32> {
116 let EncoderMethod = "getAddrModeImm12OpValue";
120 // ADR instruction labels.
121 def t2adrlabel : Operand<i32> {
122 let EncoderMethod = "getT2AdrLabelOpValue";
126 // t2addrmode_posimm8 := reg + imm8
127 def MemPosImm8OffsetAsmOperand : AsmOperandClass {let Name="MemPosImm8Offset";}
128 def t2addrmode_posimm8 : Operand<i32> {
129 let PrintMethod = "printT2AddrModeImm8Operand";
130 let EncoderMethod = "getT2AddrModeImm8OpValue";
131 let DecoderMethod = "DecodeT2AddrModeImm8";
132 let ParserMatchClass = MemPosImm8OffsetAsmOperand;
133 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
136 // t2addrmode_negimm8 := reg - imm8
137 def MemNegImm8OffsetAsmOperand : AsmOperandClass {let Name="MemNegImm8Offset";}
138 def t2addrmode_negimm8 : Operand<i32>,
139 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
140 let PrintMethod = "printT2AddrModeImm8Operand";
141 let EncoderMethod = "getT2AddrModeImm8OpValue";
142 let DecoderMethod = "DecodeT2AddrModeImm8";
143 let ParserMatchClass = MemNegImm8OffsetAsmOperand;
144 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
147 // t2addrmode_imm8 := reg +/- imm8
148 def MemImm8OffsetAsmOperand : AsmOperandClass { let Name = "MemImm8Offset"; }
149 def t2addrmode_imm8 : Operand<i32>,
150 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
151 let PrintMethod = "printT2AddrModeImm8Operand";
152 let EncoderMethod = "getT2AddrModeImm8OpValue";
153 let DecoderMethod = "DecodeT2AddrModeImm8";
154 let ParserMatchClass = MemImm8OffsetAsmOperand;
155 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
158 def t2am_imm8_offset : Operand<i32>,
159 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
160 [], [SDNPWantRoot]> {
161 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
162 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
163 let DecoderMethod = "DecodeT2Imm8";
166 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
167 def MemImm8s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm8s4Offset";}
168 def t2addrmode_imm8s4 : Operand<i32> {
169 let PrintMethod = "printT2AddrModeImm8s4Operand";
170 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
171 let DecoderMethod = "DecodeT2AddrModeImm8s4";
172 let ParserMatchClass = MemImm8s4OffsetAsmOperand;
173 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
176 def t2am_imm8s4_offset_asmoperand : AsmOperandClass { let Name = "Imm8s4"; }
177 def t2am_imm8s4_offset : Operand<i32> {
178 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
179 let EncoderMethod = "getT2Imm8s4OpValue";
180 let DecoderMethod = "DecodeT2Imm8S4";
183 // t2addrmode_so_reg := reg + (reg << imm2)
184 def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";}
185 def t2addrmode_so_reg : Operand<i32>,
186 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
187 let PrintMethod = "printT2AddrModeSoRegOperand";
188 let EncoderMethod = "getT2AddrModeSORegOpValue";
189 let DecoderMethod = "DecodeT2AddrModeSOReg";
190 let ParserMatchClass = t2addrmode_so_reg_asmoperand;
191 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
194 // t2addrmode_reg := reg
195 // Used by load/store exclusive instructions. Useful to enable right assembly
196 // parsing and printing. Not used for any codegen matching.
198 def t2addrmode_reg : Operand<i32> {
199 let PrintMethod = "printAddrMode7Operand";
200 let DecoderMethod = "DecodeGPRRegisterClass";
201 let MIOperandInfo = (ops GPR);
204 //===----------------------------------------------------------------------===//
205 // Multiclass helpers...
209 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
210 string opc, string asm, list<dag> pattern>
211 : T2I<oops, iops, itin, opc, asm, pattern> {
216 let Inst{26} = imm{11};
217 let Inst{14-12} = imm{10-8};
218 let Inst{7-0} = imm{7-0};
222 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
223 string opc, string asm, list<dag> pattern>
224 : T2sI<oops, iops, itin, opc, asm, pattern> {
230 let Inst{26} = imm{11};
231 let Inst{14-12} = imm{10-8};
232 let Inst{7-0} = imm{7-0};
235 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
236 string opc, string asm, list<dag> pattern>
237 : T2I<oops, iops, itin, opc, asm, pattern> {
241 let Inst{19-16} = Rn;
242 let Inst{26} = imm{11};
243 let Inst{14-12} = imm{10-8};
244 let Inst{7-0} = imm{7-0};
248 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
249 string opc, string asm, list<dag> pattern>
250 : T2I<oops, iops, itin, opc, asm, pattern> {
255 let Inst{3-0} = ShiftedRm{3-0};
256 let Inst{5-4} = ShiftedRm{6-5};
257 let Inst{14-12} = ShiftedRm{11-9};
258 let Inst{7-6} = ShiftedRm{8-7};
261 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
262 string opc, string asm, list<dag> pattern>
263 : T2sI<oops, iops, itin, opc, asm, pattern> {
268 let Inst{3-0} = ShiftedRm{3-0};
269 let Inst{5-4} = ShiftedRm{6-5};
270 let Inst{14-12} = ShiftedRm{11-9};
271 let Inst{7-6} = ShiftedRm{8-7};
274 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
275 string opc, string asm, list<dag> pattern>
276 : T2I<oops, iops, itin, opc, asm, pattern> {
280 let Inst{19-16} = Rn;
281 let Inst{3-0} = ShiftedRm{3-0};
282 let Inst{5-4} = ShiftedRm{6-5};
283 let Inst{14-12} = ShiftedRm{11-9};
284 let Inst{7-6} = ShiftedRm{8-7};
287 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
288 string opc, string asm, list<dag> pattern>
289 : T2I<oops, iops, itin, opc, asm, pattern> {
297 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
298 string opc, string asm, list<dag> pattern>
299 : T2sI<oops, iops, itin, opc, asm, pattern> {
307 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
308 string opc, string asm, list<dag> pattern>
309 : T2I<oops, iops, itin, opc, asm, pattern> {
313 let Inst{19-16} = Rn;
318 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
319 string opc, string asm, list<dag> pattern>
320 : T2I<oops, iops, itin, opc, asm, pattern> {
326 let Inst{19-16} = Rn;
327 let Inst{26} = imm{11};
328 let Inst{14-12} = imm{10-8};
329 let Inst{7-0} = imm{7-0};
332 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
333 string opc, string asm, list<dag> pattern>
334 : T2sI<oops, iops, itin, opc, asm, pattern> {
340 let Inst{19-16} = Rn;
341 let Inst{26} = imm{11};
342 let Inst{14-12} = imm{10-8};
343 let Inst{7-0} = imm{7-0};
346 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
347 string opc, string asm, list<dag> pattern>
348 : T2I<oops, iops, itin, opc, asm, pattern> {
355 let Inst{14-12} = imm{4-2};
356 let Inst{7-6} = imm{1-0};
359 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
360 string opc, string asm, list<dag> pattern>
361 : T2sI<oops, iops, itin, opc, asm, pattern> {
368 let Inst{14-12} = imm{4-2};
369 let Inst{7-6} = imm{1-0};
372 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
373 string opc, string asm, list<dag> pattern>
374 : T2I<oops, iops, itin, opc, asm, pattern> {
380 let Inst{19-16} = Rn;
384 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
385 string opc, string asm, list<dag> pattern>
386 : T2sI<oops, iops, itin, opc, asm, pattern> {
392 let Inst{19-16} = Rn;
396 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
397 string opc, string asm, list<dag> pattern>
398 : T2I<oops, iops, itin, opc, asm, pattern> {
404 let Inst{19-16} = Rn;
405 let Inst{3-0} = ShiftedRm{3-0};
406 let Inst{5-4} = ShiftedRm{6-5};
407 let Inst{14-12} = ShiftedRm{11-9};
408 let Inst{7-6} = ShiftedRm{8-7};
411 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
412 string opc, string asm, list<dag> pattern>
413 : T2sI<oops, iops, itin, opc, asm, pattern> {
419 let Inst{19-16} = Rn;
420 let Inst{3-0} = ShiftedRm{3-0};
421 let Inst{5-4} = ShiftedRm{6-5};
422 let Inst{14-12} = ShiftedRm{11-9};
423 let Inst{7-6} = ShiftedRm{8-7};
426 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
427 string opc, string asm, list<dag> pattern>
428 : T2I<oops, iops, itin, opc, asm, pattern> {
434 let Inst{19-16} = Rn;
435 let Inst{15-12} = Ra;
440 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
441 dag oops, dag iops, InstrItinClass itin,
442 string opc, string asm, list<dag> pattern>
443 : T2I<oops, iops, itin, opc, asm, pattern> {
449 let Inst{31-23} = 0b111110111;
450 let Inst{22-20} = opc22_20;
451 let Inst{19-16} = Rn;
452 let Inst{15-12} = RdLo;
453 let Inst{11-8} = RdHi;
454 let Inst{7-4} = opc7_4;
459 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
460 /// unary operation that produces a value. These are predicable and can be
461 /// changed to modify CPSR.
462 multiclass T2I_un_irs<bits<4> opcod, string opc,
463 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
464 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
466 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
468 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
469 let isAsCheapAsAMove = Cheap;
470 let isReMaterializable = ReMat;
471 let Inst{31-27} = 0b11110;
473 let Inst{24-21} = opcod;
474 let Inst{19-16} = 0b1111; // Rn
478 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
480 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
481 let Inst{31-27} = 0b11101;
482 let Inst{26-25} = 0b01;
483 let Inst{24-21} = opcod;
484 let Inst{19-16} = 0b1111; // Rn
485 let Inst{14-12} = 0b000; // imm3
486 let Inst{7-6} = 0b00; // imm2
487 let Inst{5-4} = 0b00; // type
490 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
491 opc, ".w\t$Rd, $ShiftedRm",
492 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
493 let Inst{31-27} = 0b11101;
494 let Inst{26-25} = 0b01;
495 let Inst{24-21} = opcod;
496 let Inst{19-16} = 0b1111; // Rn
500 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
501 /// binary operation that produces a value. These are predicable and can be
502 /// changed to modify CPSR.
503 multiclass T2I_bin_irs<bits<4> opcod, string opc,
504 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
505 PatFrag opnode, string baseOpc, bit Commutable = 0,
508 def ri : T2sTwoRegImm<
509 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
510 opc, "\t$Rd, $Rn, $imm",
511 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
512 let Inst{31-27} = 0b11110;
514 let Inst{24-21} = opcod;
518 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
519 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
520 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
521 let isCommutable = Commutable;
522 let Inst{31-27} = 0b11101;
523 let Inst{26-25} = 0b01;
524 let Inst{24-21} = opcod;
525 let Inst{14-12} = 0b000; // imm3
526 let Inst{7-6} = 0b00; // imm2
527 let Inst{5-4} = 0b00; // type
530 def rs : T2sTwoRegShiftedReg<
531 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
532 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
533 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
534 let Inst{31-27} = 0b11101;
535 let Inst{26-25} = 0b01;
536 let Inst{24-21} = opcod;
538 // Assembly aliases for optional destination operand when it's the same
539 // as the source operand.
540 def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
541 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
542 t2_so_imm:$imm, pred:$p,
544 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
545 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
548 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
549 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
550 t2_so_reg:$shift, pred:$p,
554 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
555 // the ".w" suffix to indicate that they are wide.
556 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
557 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
558 PatFrag opnode, string baseOpc, bit Commutable = 0> :
559 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, baseOpc, Commutable, ".w"> {
560 // Assembler aliases w/o the ".w" suffix.
561 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
562 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rd, rGPR:$Rn,
565 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"),
566 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rd, rGPR:$Rn,
567 t2_so_reg:$shift, pred:$p,
570 // and with the optional destination operand, too.
571 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
572 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
575 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"),
576 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
577 t2_so_reg:$shift, pred:$p,
581 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
582 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
583 /// it is equivalent to the T2I_bin_irs counterpart.
584 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
586 def ri : T2sTwoRegImm<
587 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
588 opc, ".w\t$Rd, $Rn, $imm",
589 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
590 let Inst{31-27} = 0b11110;
592 let Inst{24-21} = opcod;
596 def rr : T2sThreeReg<
597 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
598 opc, "\t$Rd, $Rn, $Rm",
599 [/* For disassembly only; pattern left blank */]> {
600 let Inst{31-27} = 0b11101;
601 let Inst{26-25} = 0b01;
602 let Inst{24-21} = opcod;
603 let Inst{14-12} = 0b000; // imm3
604 let Inst{7-6} = 0b00; // imm2
605 let Inst{5-4} = 0b00; // type
608 def rs : T2sTwoRegShiftedReg<
609 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
610 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
611 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
612 let Inst{31-27} = 0b11101;
613 let Inst{26-25} = 0b01;
614 let Inst{24-21} = opcod;
618 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
619 /// instruction modifies the CPSR register.
620 let hasPostISelHook = 1, isCodeGenOnly = 1, Defs = [CPSR] in {
621 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
622 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
623 PatFrag opnode, bit Commutable = 0> {
625 def ri : T2sTwoRegImm<
626 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
627 opc, ".w\t$Rd, $Rn, $imm",
628 [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
629 let Inst{31-27} = 0b11110;
631 let Inst{24-21} = opcod;
635 def rr : T2sThreeReg<
636 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
637 opc, ".w\t$Rd, $Rn, $Rm",
638 [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, rGPR:$Rm))]> {
639 let isCommutable = Commutable;
640 let Inst{31-27} = 0b11101;
641 let Inst{26-25} = 0b01;
642 let Inst{24-21} = opcod;
643 let Inst{14-12} = 0b000; // imm3
644 let Inst{7-6} = 0b00; // imm2
645 let Inst{5-4} = 0b00; // type
648 def rs : T2sTwoRegShiftedReg<
649 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
650 opc, ".w\t$Rd, $Rn, $ShiftedRm",
651 [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
652 let Inst{31-27} = 0b11101;
653 let Inst{26-25} = 0b01;
654 let Inst{24-21} = opcod;
659 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
660 /// patterns for a binary operation that produces a value.
661 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
662 bit Commutable = 0> {
664 // The register-immediate version is re-materializable. This is useful
665 // in particular for taking the address of a local.
666 let isReMaterializable = 1 in {
667 def ri : T2sTwoRegImm<
668 (outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
669 opc, ".w\t$Rd, $Rn, $imm",
670 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]> {
671 let Inst{31-27} = 0b11110;
674 let Inst{23-21} = op23_21;
680 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
681 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
682 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
686 let Inst{31-27} = 0b11110;
687 let Inst{26} = imm{11};
688 let Inst{25-24} = 0b10;
689 let Inst{23-21} = op23_21;
690 let Inst{20} = 0; // The S bit.
691 let Inst{19-16} = Rn;
693 let Inst{14-12} = imm{10-8};
695 let Inst{7-0} = imm{7-0};
698 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iALUr,
699 opc, ".w\t$Rd, $Rn, $Rm",
700 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]> {
701 let isCommutable = Commutable;
702 let Inst{31-27} = 0b11101;
703 let Inst{26-25} = 0b01;
705 let Inst{23-21} = op23_21;
706 let Inst{14-12} = 0b000; // imm3
707 let Inst{7-6} = 0b00; // imm2
708 let Inst{5-4} = 0b00; // type
711 def rs : T2sTwoRegShiftedReg<
712 (outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
713 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
714 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]> {
715 let Inst{31-27} = 0b11101;
716 let Inst{26-25} = 0b01;
718 let Inst{23-21} = op23_21;
722 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
723 /// for a binary operation that produces a value and use the carry
724 /// bit. It's not predicable.
725 let Defs = [CPSR], Uses = [CPSR] in {
726 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
727 bit Commutable = 0> {
729 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
730 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
731 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_imm:$imm, CPSR))]>,
732 Requires<[IsThumb2]> {
733 let Inst{31-27} = 0b11110;
735 let Inst{24-21} = opcod;
739 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
740 opc, ".w\t$Rd, $Rn, $Rm",
741 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, rGPR:$Rm, CPSR))]>,
742 Requires<[IsThumb2]> {
743 let isCommutable = Commutable;
744 let Inst{31-27} = 0b11101;
745 let Inst{26-25} = 0b01;
746 let Inst{24-21} = opcod;
747 let Inst{14-12} = 0b000; // imm3
748 let Inst{7-6} = 0b00; // imm2
749 let Inst{5-4} = 0b00; // type
752 def rs : T2sTwoRegShiftedReg<
753 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
754 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
755 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm, CPSR))]>,
756 Requires<[IsThumb2]> {
757 let Inst{31-27} = 0b11101;
758 let Inst{26-25} = 0b01;
759 let Inst{24-21} = opcod;
764 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
765 /// version is not needed since this is only for codegen.
766 let hasPostISelHook = 1, isCodeGenOnly = 1, Defs = [CPSR] in {
767 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
769 def ri : T2sTwoRegImm<
770 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
771 opc, ".w\t$Rd, $Rn, $imm",
772 [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
773 let Inst{31-27} = 0b11110;
775 let Inst{24-21} = opcod;
779 def rs : T2sTwoRegShiftedReg<
780 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
781 IIC_iALUsi, opc, "\t$Rd, $Rn, $ShiftedRm",
782 [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
783 let Inst{31-27} = 0b11101;
784 let Inst{26-25} = 0b01;
785 let Inst{24-21} = opcod;
790 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
791 // rotate operation that produces a value.
792 multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, PatFrag opnode,
795 def ri : T2sTwoRegShiftImm<
796 (outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi,
797 opc, ".w\t$Rd, $Rm, $imm",
798 [(set rGPR:$Rd, (opnode rGPR:$Rm, (i32 ty:$imm)))]> {
799 let Inst{31-27} = 0b11101;
800 let Inst{26-21} = 0b010010;
801 let Inst{19-16} = 0b1111; // Rn
802 let Inst{5-4} = opcod;
805 def rr : T2sThreeReg<
806 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
807 opc, ".w\t$Rd, $Rn, $Rm",
808 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
809 let Inst{31-27} = 0b11111;
810 let Inst{26-23} = 0b0100;
811 let Inst{22-21} = opcod;
812 let Inst{15-12} = 0b1111;
813 let Inst{7-4} = 0b0000;
816 // Optional destination register
817 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"),
818 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
821 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"),
822 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
826 // Assembler aliases w/o the ".w" suffix.
827 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"),
828 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rd, rGPR:$Rn,
831 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
832 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rd, rGPR:$Rn,
836 // and with the optional destination operand, too.
837 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"),
838 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
841 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
842 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
847 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
848 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
849 /// a explicit result, only implicitly set CPSR.
850 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
851 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
852 PatFrag opnode, string baseOpc> {
853 let isCompare = 1, Defs = [CPSR] in {
855 def ri : T2OneRegCmpImm<
856 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), iii,
857 opc, ".w\t$Rn, $imm",
858 [(opnode GPRnopc:$Rn, t2_so_imm:$imm)]> {
859 let Inst{31-27} = 0b11110;
861 let Inst{24-21} = opcod;
862 let Inst{20} = 1; // The S bit.
864 let Inst{11-8} = 0b1111; // Rd
867 def rr : T2TwoRegCmp<
868 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), iir,
870 [(opnode GPRnopc:$Rn, rGPR:$Rm)]> {
871 let Inst{31-27} = 0b11101;
872 let Inst{26-25} = 0b01;
873 let Inst{24-21} = opcod;
874 let Inst{20} = 1; // The S bit.
875 let Inst{14-12} = 0b000; // imm3
876 let Inst{11-8} = 0b1111; // Rd
877 let Inst{7-6} = 0b00; // imm2
878 let Inst{5-4} = 0b00; // type
881 def rs : T2OneRegCmpShiftedReg<
882 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), iis,
883 opc, ".w\t$Rn, $ShiftedRm",
884 [(opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]> {
885 let Inst{31-27} = 0b11101;
886 let Inst{26-25} = 0b01;
887 let Inst{24-21} = opcod;
888 let Inst{20} = 1; // The S bit.
889 let Inst{11-8} = 0b1111; // Rd
893 // Assembler aliases w/o the ".w" suffix.
894 // No alias here for 'rr' version as not all instantiations of this
895 // multiclass want one (CMP in particular, does not).
896 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"),
897 (!cast<Instruction>(!strconcat(baseOpc, "ri")) GPRnopc:$Rn,
898 t2_so_imm:$imm, pred:$p)>;
899 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"),
900 (!cast<Instruction>(!strconcat(baseOpc, "rs")) GPRnopc:$Rn,
905 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
906 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
907 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
909 def i12 : T2Ii12<(outs target:$Rt), (ins t2addrmode_imm12:$addr), iii,
910 opc, ".w\t$Rt, $addr",
911 [(set target:$Rt, (opnode t2addrmode_imm12:$addr))]> {
914 let Inst{31-25} = 0b1111100;
915 let Inst{24} = signed;
917 let Inst{22-21} = opcod;
918 let Inst{20} = 1; // load
919 let Inst{19-16} = addr{16-13}; // Rn
920 let Inst{15-12} = Rt;
921 let Inst{11-0} = addr{11-0}; // imm
923 def i8 : T2Ii8 <(outs target:$Rt), (ins t2addrmode_negimm8:$addr), iii,
925 [(set target:$Rt, (opnode t2addrmode_negimm8:$addr))]> {
928 let Inst{31-27} = 0b11111;
929 let Inst{26-25} = 0b00;
930 let Inst{24} = signed;
932 let Inst{22-21} = opcod;
933 let Inst{20} = 1; // load
934 let Inst{19-16} = addr{12-9}; // Rn
935 let Inst{15-12} = Rt;
937 // Offset: index==TRUE, wback==FALSE
938 let Inst{10} = 1; // The P bit.
939 let Inst{9} = addr{8}; // U
940 let Inst{8} = 0; // The W bit.
941 let Inst{7-0} = addr{7-0}; // imm
943 def s : T2Iso <(outs target:$Rt), (ins t2addrmode_so_reg:$addr), iis,
944 opc, ".w\t$Rt, $addr",
945 [(set target:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
946 let Inst{31-27} = 0b11111;
947 let Inst{26-25} = 0b00;
948 let Inst{24} = signed;
950 let Inst{22-21} = opcod;
951 let Inst{20} = 1; // load
952 let Inst{11-6} = 0b000000;
955 let Inst{15-12} = Rt;
958 let Inst{19-16} = addr{9-6}; // Rn
959 let Inst{3-0} = addr{5-2}; // Rm
960 let Inst{5-4} = addr{1-0}; // imm
962 let DecoderMethod = "DecodeT2LoadShift";
965 // FIXME: Is the pci variant actually needed?
966 def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
967 opc, ".w\t$Rt, $addr",
968 [(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
969 let isReMaterializable = 1;
970 let Inst{31-27} = 0b11111;
971 let Inst{26-25} = 0b00;
972 let Inst{24} = signed;
973 let Inst{23} = ?; // add = (U == '1')
974 let Inst{22-21} = opcod;
975 let Inst{20} = 1; // load
976 let Inst{19-16} = 0b1111; // Rn
979 let Inst{15-12} = Rt{3-0};
980 let Inst{11-0} = addr{11-0};
984 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
985 multiclass T2I_st<bits<2> opcod, string opc,
986 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
988 def i12 : T2Ii12<(outs), (ins target:$Rt, t2addrmode_imm12:$addr), iii,
989 opc, ".w\t$Rt, $addr",
990 [(opnode target:$Rt, t2addrmode_imm12:$addr)]> {
991 let Inst{31-27} = 0b11111;
992 let Inst{26-23} = 0b0001;
993 let Inst{22-21} = opcod;
994 let Inst{20} = 0; // !load
997 let Inst{15-12} = Rt;
1000 let addr{12} = 1; // add = TRUE
1001 let Inst{19-16} = addr{16-13}; // Rn
1002 let Inst{23} = addr{12}; // U
1003 let Inst{11-0} = addr{11-0}; // imm
1005 def i8 : T2Ii8 <(outs), (ins target:$Rt, t2addrmode_negimm8:$addr), iii,
1006 opc, "\t$Rt, $addr",
1007 [(opnode target:$Rt, t2addrmode_negimm8:$addr)]> {
1008 let Inst{31-27} = 0b11111;
1009 let Inst{26-23} = 0b0000;
1010 let Inst{22-21} = opcod;
1011 let Inst{20} = 0; // !load
1013 // Offset: index==TRUE, wback==FALSE
1014 let Inst{10} = 1; // The P bit.
1015 let Inst{8} = 0; // The W bit.
1018 let Inst{15-12} = Rt;
1021 let Inst{19-16} = addr{12-9}; // Rn
1022 let Inst{9} = addr{8}; // U
1023 let Inst{7-0} = addr{7-0}; // imm
1025 def s : T2Iso <(outs), (ins target:$Rt, t2addrmode_so_reg:$addr), iis,
1026 opc, ".w\t$Rt, $addr",
1027 [(opnode target:$Rt, t2addrmode_so_reg:$addr)]> {
1028 let Inst{31-27} = 0b11111;
1029 let Inst{26-23} = 0b0000;
1030 let Inst{22-21} = opcod;
1031 let Inst{20} = 0; // !load
1032 let Inst{11-6} = 0b000000;
1035 let Inst{15-12} = Rt;
1038 let Inst{19-16} = addr{9-6}; // Rn
1039 let Inst{3-0} = addr{5-2}; // Rm
1040 let Inst{5-4} = addr{1-0}; // imm
1044 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
1045 /// register and one whose operand is a register rotated by 8/16/24.
1046 class T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode>
1047 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1048 opc, ".w\t$Rd, $Rm$rot",
1049 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1050 Requires<[IsThumb2]> {
1051 let Inst{31-27} = 0b11111;
1052 let Inst{26-23} = 0b0100;
1053 let Inst{22-20} = opcod;
1054 let Inst{19-16} = 0b1111; // Rn
1055 let Inst{15-12} = 0b1111;
1059 let Inst{5-4} = rot{1-0}; // rotate
1062 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
1063 class T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode>
1064 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot),
1065 IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
1066 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1067 Requires<[HasT2ExtractPack, IsThumb2]> {
1069 let Inst{31-27} = 0b11111;
1070 let Inst{26-23} = 0b0100;
1071 let Inst{22-20} = opcod;
1072 let Inst{19-16} = 0b1111; // Rn
1073 let Inst{15-12} = 0b1111;
1075 let Inst{5-4} = rot;
1078 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1080 class T2I_ext_rrot_sxtb16<bits<3> opcod, string opc>
1081 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1082 opc, "\t$Rd, $Rm$rot", []>,
1083 Requires<[IsThumb2, HasT2ExtractPack]> {
1085 let Inst{31-27} = 0b11111;
1086 let Inst{26-23} = 0b0100;
1087 let Inst{22-20} = opcod;
1088 let Inst{19-16} = 0b1111; // Rn
1089 let Inst{15-12} = 0b1111;
1091 let Inst{5-4} = rot;
1094 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1095 /// register and one whose operand is a register rotated by 8/16/24.
1096 class T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode>
1097 : T2ThreeReg<(outs rGPR:$Rd),
1098 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1099 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot",
1100 [(set rGPR:$Rd, (opnode rGPR:$Rn, (rotr rGPR:$Rm,rot_imm:$rot)))]>,
1101 Requires<[HasT2ExtractPack, IsThumb2]> {
1103 let Inst{31-27} = 0b11111;
1104 let Inst{26-23} = 0b0100;
1105 let Inst{22-20} = opcod;
1106 let Inst{15-12} = 0b1111;
1108 let Inst{5-4} = rot;
1111 class T2I_exta_rrot_np<bits<3> opcod, string opc>
1112 : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm,rot_imm:$rot),
1113 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []> {
1115 let Inst{31-27} = 0b11111;
1116 let Inst{26-23} = 0b0100;
1117 let Inst{22-20} = opcod;
1118 let Inst{15-12} = 0b1111;
1120 let Inst{5-4} = rot;
1123 //===----------------------------------------------------------------------===//
1125 //===----------------------------------------------------------------------===//
1127 //===----------------------------------------------------------------------===//
1128 // Miscellaneous Instructions.
1131 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1132 string asm, list<dag> pattern>
1133 : T2XI<oops, iops, itin, asm, pattern> {
1137 let Inst{11-8} = Rd;
1138 let Inst{26} = label{11};
1139 let Inst{14-12} = label{10-8};
1140 let Inst{7-0} = label{7-0};
1143 // LEApcrel - Load a pc-relative address into a register without offending the
1145 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1146 (ins t2adrlabel:$addr, pred:$p),
1147 IIC_iALUi, "adr{$p}.w\t$Rd, #$addr", []> {
1148 let Inst{31-27} = 0b11110;
1149 let Inst{25-24} = 0b10;
1150 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1153 let Inst{19-16} = 0b1111; // Rn
1158 let Inst{11-8} = Rd;
1159 let Inst{23} = addr{12};
1160 let Inst{21} = addr{12};
1161 let Inst{26} = addr{11};
1162 let Inst{14-12} = addr{10-8};
1163 let Inst{7-0} = addr{7-0};
1166 let neverHasSideEffects = 1, isReMaterializable = 1 in
1167 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1169 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1170 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1175 //===----------------------------------------------------------------------===//
1176 // Load / store Instructions.
1180 let canFoldAsLoad = 1, isReMaterializable = 1 in
1181 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si, GPR,
1182 UnOpFrag<(load node:$Src)>>;
1184 // Loads with zero extension
1185 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1186 rGPR, UnOpFrag<(zextloadi16 node:$Src)>>;
1187 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1188 rGPR, UnOpFrag<(zextloadi8 node:$Src)>>;
1190 // Loads with sign extension
1191 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1192 rGPR, UnOpFrag<(sextloadi16 node:$Src)>>;
1193 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1194 rGPR, UnOpFrag<(sextloadi8 node:$Src)>>;
1196 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1198 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1199 (ins t2addrmode_imm8s4:$addr),
1200 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", "", []>;
1201 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1203 // zextload i1 -> zextload i8
1204 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1205 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1206 def : T2Pat<(zextloadi1 t2addrmode_negimm8:$addr),
1207 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1208 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1209 (t2LDRBs t2addrmode_so_reg:$addr)>;
1210 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1211 (t2LDRBpci tconstpool:$addr)>;
1213 // extload -> zextload
1214 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1216 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1217 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1218 def : T2Pat<(extloadi1 t2addrmode_negimm8:$addr),
1219 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1220 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1221 (t2LDRBs t2addrmode_so_reg:$addr)>;
1222 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1223 (t2LDRBpci tconstpool:$addr)>;
1225 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1226 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1227 def : T2Pat<(extloadi8 t2addrmode_negimm8:$addr),
1228 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1229 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1230 (t2LDRBs t2addrmode_so_reg:$addr)>;
1231 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1232 (t2LDRBpci tconstpool:$addr)>;
1234 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1235 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1236 def : T2Pat<(extloadi16 t2addrmode_negimm8:$addr),
1237 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
1238 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1239 (t2LDRHs t2addrmode_so_reg:$addr)>;
1240 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1241 (t2LDRHpci tconstpool:$addr)>;
1243 // FIXME: The destination register of the loads and stores can't be PC, but
1244 // can be SP. We need another regclass (similar to rGPR) to represent
1245 // that. Not a pressing issue since these are selected manually,
1250 let mayLoad = 1, neverHasSideEffects = 1 in {
1251 def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1252 (ins t2addrmode_imm8:$addr),
1253 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1254 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1256 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1259 def t2LDR_POST : T2Ipostldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1260 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1261 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1262 "ldr", "\t$Rt, $Rn, $offset", "$Rn = $Rn_wb", []>;
1264 def t2LDRB_PRE : T2Ipreldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1265 (ins t2addrmode_imm8:$addr),
1266 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1267 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1269 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1271 def t2LDRB_POST : T2Ipostldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1272 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1273 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1274 "ldrb", "\t$Rt, $Rn, $offset", "$Rn = $Rn_wb", []>;
1276 def t2LDRH_PRE : T2Ipreldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1277 (ins t2addrmode_imm8:$addr),
1278 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1279 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1281 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1283 def t2LDRH_POST : T2Ipostldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1284 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1285 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1286 "ldrh", "\t$Rt, $Rn, $offset", "$Rn = $Rn_wb", []>;
1288 def t2LDRSB_PRE : T2Ipreldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1289 (ins t2addrmode_imm8:$addr),
1290 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1291 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1293 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1295 def t2LDRSB_POST : T2Ipostldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1296 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1297 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1298 "ldrsb", "\t$Rt, $Rn, $offset", "$Rn = $Rn_wb", []>;
1300 def t2LDRSH_PRE : T2Ipreldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1301 (ins t2addrmode_imm8:$addr),
1302 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1303 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1305 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1307 def t2LDRSH_POST : T2Ipostldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1308 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1309 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1310 "ldrsh", "\t$Rt, $Rn, $offset", "$Rn = $Rn_wb", []>;
1311 } // mayLoad = 1, neverHasSideEffects = 1
1313 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110).
1314 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1315 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1316 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_posimm8:$addr), ii, opc,
1317 "\t$Rt, $addr", []> {
1320 let Inst{31-27} = 0b11111;
1321 let Inst{26-25} = 0b00;
1322 let Inst{24} = signed;
1324 let Inst{22-21} = type;
1325 let Inst{20} = 1; // load
1326 let Inst{19-16} = addr{12-9};
1327 let Inst{15-12} = Rt;
1329 let Inst{10-8} = 0b110; // PUW.
1330 let Inst{7-0} = addr{7-0};
1333 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1334 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1335 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1336 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1337 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1340 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si, GPR,
1341 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1342 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1343 rGPR, BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1344 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1345 rGPR, BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1348 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1349 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1350 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1351 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", "", []>;
1354 def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
1355 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1356 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1357 "str", "\t$Rt, [$Rn, $addr]!",
1358 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1359 [(set GPRnopc:$Rn_wb,
1360 (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1362 def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
1363 (ins rGPR:$Rt, addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1364 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1365 "str", "\t$Rt, $Rn, $offset",
1366 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1367 [(set GPRnopc:$Rn_wb,
1368 (post_store rGPR:$Rt, addr_offset_none:$Rn, t2am_imm8_offset:$offset))]>;
1370 def t2STRH_PRE : T2Ipreldst<0, 0b01, 0, 1, (outs GPRnopc:$Rn_wb),
1371 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1372 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1373 "strh", "\t$Rt, [$Rn, $addr]!",
1374 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1375 [(set GPRnopc:$Rn_wb,
1376 (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1378 def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb),
1379 (ins rGPR:$Rt, addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1380 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1381 "strh", "\t$Rt, $Rn, $offset",
1382 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1383 [(set GPRnopc:$Rn_wb,
1384 (post_truncsti16 rGPR:$Rt, addr_offset_none:$Rn, t2am_imm8_offset:$offset))]>;
1386 def t2STRB_PRE : T2Ipreldst<0, 0b00, 0, 1, (outs GPRnopc:$Rn_wb),
1387 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1388 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1389 "strb", "\t$Rt, [$Rn, $addr]!",
1390 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1391 [(set GPRnopc:$Rn_wb,
1392 (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1394 def t2STRB_POST : T2Ipostldst<0, 0b00, 0, 0, (outs GPRnopc:$Rn_wb),
1395 (ins rGPR:$Rt, addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1396 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1397 "strb", "\t$Rt, $Rn, $offset",
1398 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1399 [(set GPRnopc:$Rn_wb,
1400 (post_truncsti8 rGPR:$Rt, addr_offset_none:$Rn, t2am_imm8_offset:$offset))]>;
1402 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1404 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1405 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1406 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1407 "\t$Rt, $addr", []> {
1408 let Inst{31-27} = 0b11111;
1409 let Inst{26-25} = 0b00;
1410 let Inst{24} = 0; // not signed
1412 let Inst{22-21} = type;
1413 let Inst{20} = 0; // store
1415 let Inst{10-8} = 0b110; // PUW
1419 let Inst{15-12} = Rt;
1420 let Inst{19-16} = addr{12-9};
1421 let Inst{7-0} = addr{7-0};
1424 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1425 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1426 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1428 // ldrd / strd pre / post variants
1429 // For disassembly only.
1431 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1432 (ins t2addrmode_imm8s4:$addr), IIC_iLoad_d_ru,
1433 "ldrd", "\t$Rt, $Rt2, $addr!", "$addr.base = $wb", []> {
1434 let AsmMatchConverter = "cvtT2LdrdPre";
1435 let DecoderMethod = "DecodeT2LDRDPreInstruction";
1438 def t2LDRD_POST : T2Ii8s4post<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1439 (ins addr_offset_none:$addr, t2am_imm8s4_offset:$imm),
1440 IIC_iLoad_d_ru, "ldrd", "\t$Rt, $Rt2, $addr, $imm",
1441 "$addr.base = $wb", []>;
1443 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs GPR:$wb),
1444 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4:$addr),
1445 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr!",
1446 "$addr.base = $wb", []> {
1447 let AsmMatchConverter = "cvtT2StrdPre";
1448 let DecoderMethod = "DecodeT2STRDPreInstruction";
1451 def t2STRD_POST : T2Ii8s4post<0, 1, 0, (outs GPR:$wb),
1452 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr,
1453 t2am_imm8s4_offset:$imm),
1454 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr, $imm",
1455 "$addr.base = $wb", []>;
1457 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1458 // data/instruction access. These are for disassembly only.
1459 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1460 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1461 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1463 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1465 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1466 let Inst{31-25} = 0b1111100;
1467 let Inst{24} = instr;
1469 let Inst{21} = write;
1471 let Inst{15-12} = 0b1111;
1474 let addr{12} = 1; // add = TRUE
1475 let Inst{19-16} = addr{16-13}; // Rn
1476 let Inst{23} = addr{12}; // U
1477 let Inst{11-0} = addr{11-0}; // imm12
1480 def i8 : T2Ii8<(outs), (ins t2addrmode_negimm8:$addr), IIC_Preload, opc,
1482 [(ARMPreload t2addrmode_negimm8:$addr, (i32 write), (i32 instr))]> {
1483 let Inst{31-25} = 0b1111100;
1484 let Inst{24} = instr;
1485 let Inst{23} = 0; // U = 0
1487 let Inst{21} = write;
1489 let Inst{15-12} = 0b1111;
1490 let Inst{11-8} = 0b1100;
1493 let Inst{19-16} = addr{12-9}; // Rn
1494 let Inst{7-0} = addr{7-0}; // imm8
1497 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1499 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1500 let Inst{31-25} = 0b1111100;
1501 let Inst{24} = instr;
1502 let Inst{23} = 0; // add = TRUE for T1
1504 let Inst{21} = write;
1506 let Inst{15-12} = 0b1111;
1507 let Inst{11-6} = 0000000;
1510 let Inst{19-16} = addr{9-6}; // Rn
1511 let Inst{3-0} = addr{5-2}; // Rm
1512 let Inst{5-4} = addr{1-0}; // imm2
1514 let DecoderMethod = "DecodeT2LoadShift";
1518 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1519 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1520 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1522 //===----------------------------------------------------------------------===//
1523 // Load / store multiple Instructions.
1526 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1527 InstrItinClass itin_upd, bit L_bit> {
1529 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1530 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1534 let Inst{31-27} = 0b11101;
1535 let Inst{26-25} = 0b00;
1536 let Inst{24-23} = 0b01; // Increment After
1538 let Inst{21} = 0; // No writeback
1539 let Inst{20} = L_bit;
1540 let Inst{19-16} = Rn;
1541 let Inst{15-0} = regs;
1544 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1545 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1549 let Inst{31-27} = 0b11101;
1550 let Inst{26-25} = 0b00;
1551 let Inst{24-23} = 0b01; // Increment After
1553 let Inst{21} = 1; // Writeback
1554 let Inst{20} = L_bit;
1555 let Inst{19-16} = Rn;
1556 let Inst{15-0} = regs;
1559 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1560 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1564 let Inst{31-27} = 0b11101;
1565 let Inst{26-25} = 0b00;
1566 let Inst{24-23} = 0b10; // Decrement Before
1568 let Inst{21} = 0; // No writeback
1569 let Inst{20} = L_bit;
1570 let Inst{19-16} = Rn;
1571 let Inst{15-0} = regs;
1574 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1575 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1579 let Inst{31-27} = 0b11101;
1580 let Inst{26-25} = 0b00;
1581 let Inst{24-23} = 0b10; // Decrement Before
1583 let Inst{21} = 1; // Writeback
1584 let Inst{20} = L_bit;
1585 let Inst{19-16} = Rn;
1586 let Inst{15-0} = regs;
1590 let neverHasSideEffects = 1 in {
1592 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1593 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1595 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1596 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1598 } // neverHasSideEffects
1601 //===----------------------------------------------------------------------===//
1602 // Move Instructions.
1605 let neverHasSideEffects = 1 in
1606 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1607 "mov", ".w\t$Rd, $Rm", []> {
1608 let Inst{31-27} = 0b11101;
1609 let Inst{26-25} = 0b01;
1610 let Inst{24-21} = 0b0010;
1611 let Inst{19-16} = 0b1111; // Rn
1612 let Inst{14-12} = 0b000;
1613 let Inst{7-4} = 0b0000;
1616 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1617 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1618 AddedComplexity = 1 in
1619 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1620 "mov", ".w\t$Rd, $imm",
1621 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1622 let Inst{31-27} = 0b11110;
1624 let Inst{24-21} = 0b0010;
1625 let Inst{19-16} = 0b1111; // Rn
1629 def : t2InstAlias<"mov${s}${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1630 pred:$p, cc_out:$s)>;
1632 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1633 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
1634 "movw", "\t$Rd, $imm",
1635 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1636 let Inst{31-27} = 0b11110;
1638 let Inst{24-21} = 0b0010;
1639 let Inst{20} = 0; // The S bit.
1645 let Inst{11-8} = Rd;
1646 let Inst{19-16} = imm{15-12};
1647 let Inst{26} = imm{11};
1648 let Inst{14-12} = imm{10-8};
1649 let Inst{7-0} = imm{7-0};
1652 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1653 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1655 let Constraints = "$src = $Rd" in {
1656 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1657 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
1658 "movt", "\t$Rd, $imm",
1660 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1661 let Inst{31-27} = 0b11110;
1663 let Inst{24-21} = 0b0110;
1664 let Inst{20} = 0; // The S bit.
1670 let Inst{11-8} = Rd;
1671 let Inst{19-16} = imm{15-12};
1672 let Inst{26} = imm{11};
1673 let Inst{14-12} = imm{10-8};
1674 let Inst{7-0} = imm{7-0};
1677 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1678 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1681 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1683 //===----------------------------------------------------------------------===//
1684 // Extend Instructions.
1689 def t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1690 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1691 def t2SXTH : T2I_ext_rrot<0b000, "sxth",
1692 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1693 def t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1695 def t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1696 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1697 def t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1698 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1699 def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
1701 // TODO: SXT(A){B|H}16
1705 let AddedComplexity = 16 in {
1706 def t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1707 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1708 def t2UXTH : T2I_ext_rrot<0b001, "uxth",
1709 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1710 def t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1711 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1713 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1714 // The transformation should probably be done as a combiner action
1715 // instead so we can include a check for masking back in the upper
1716 // eight bits of the source into the lower eight bits of the result.
1717 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1718 // (t2UXTB16 rGPR:$Src, 3)>,
1719 // Requires<[HasT2ExtractPack, IsThumb2]>;
1720 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1721 (t2UXTB16 rGPR:$Src, 1)>,
1722 Requires<[HasT2ExtractPack, IsThumb2]>;
1724 def t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1725 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1726 def t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1727 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1728 def t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">;
1731 //===----------------------------------------------------------------------===//
1732 // Arithmetic Instructions.
1735 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1736 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1737 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1738 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1740 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1741 // FIXME: Eliminate them if we can write def : Pat patterns which defines
1742 // CPSR and the implicit def of CPSR is not needed.
1743 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1744 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1745 BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>;
1746 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1747 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1748 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1750 let hasPostISelHook = 1 in {
1751 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1752 BinOpWithFlagFrag<(ARMadde node:$LHS, node:$RHS, node:$FLAG)>, 1>;
1753 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1754 BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>>;
1758 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1759 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1761 // FIXME: Eliminate them if we can write def : Pat patterns which defines
1762 // CPSR and the implicit def of CPSR is not needed.
1763 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1764 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1766 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1767 // The assume-no-carry-in form uses the negation of the input since add/sub
1768 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1769 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1771 // The AddedComplexity preferences the first variant over the others since
1772 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1773 let AddedComplexity = 1 in
1774 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1775 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1776 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1777 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1778 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1779 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1780 let AddedComplexity = 1 in
1781 def : T2Pat<(ARMaddc rGPR:$src, imm0_255_neg:$imm),
1782 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1783 def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm),
1784 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1785 // The with-carry-in form matches bitwise not instead of the negation.
1786 // Effectively, the inverse interpretation of the carry flag already accounts
1787 // for part of the negation.
1788 let AddedComplexity = 1 in
1789 def : T2Pat<(ARMadde rGPR:$src, imm0_255_not:$imm, CPSR),
1790 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
1791 def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR),
1792 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
1794 // Select Bytes -- for disassembly only
1796 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1797 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []>,
1798 Requires<[IsThumb2, HasThumb2DSP]> {
1799 let Inst{31-27} = 0b11111;
1800 let Inst{26-24} = 0b010;
1802 let Inst{22-20} = 0b010;
1803 let Inst{15-12} = 0b1111;
1805 let Inst{6-4} = 0b000;
1808 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1809 // And Miscellaneous operations -- for disassembly only
1810 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1811 list<dag> pat = [/* For disassembly only; pattern left blank */],
1812 dag iops = (ins rGPR:$Rn, rGPR:$Rm),
1813 string asm = "\t$Rd, $Rn, $Rm">
1814 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
1815 Requires<[IsThumb2, HasThumb2DSP]> {
1816 let Inst{31-27} = 0b11111;
1817 let Inst{26-23} = 0b0101;
1818 let Inst{22-20} = op22_20;
1819 let Inst{15-12} = 0b1111;
1820 let Inst{7-4} = op7_4;
1826 let Inst{11-8} = Rd;
1827 let Inst{19-16} = Rn;
1831 // Saturating add/subtract -- for disassembly only
1833 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1834 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))],
1835 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1836 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1837 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1838 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1839 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [],
1840 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1841 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [],
1842 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1843 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1844 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1845 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))],
1846 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1847 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1848 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1849 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1850 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1851 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1852 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1853 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1854 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1856 // Signed/Unsigned add/subtract -- for disassembly only
1858 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1859 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1860 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1861 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1862 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1863 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1864 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1865 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1866 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1867 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1868 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1869 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1871 // Signed/Unsigned halving add/subtract -- for disassembly only
1873 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1874 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1875 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1876 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1877 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1878 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1879 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1880 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1881 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1882 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1883 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1884 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1886 // Helper class for disassembly only
1887 // A6.3.16 & A6.3.17
1888 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1889 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1890 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1891 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1892 let Inst{31-27} = 0b11111;
1893 let Inst{26-24} = 0b011;
1894 let Inst{23} = long;
1895 let Inst{22-20} = op22_20;
1896 let Inst{7-4} = op7_4;
1899 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1900 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1901 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1902 let Inst{31-27} = 0b11111;
1903 let Inst{26-24} = 0b011;
1904 let Inst{23} = long;
1905 let Inst{22-20} = op22_20;
1906 let Inst{7-4} = op7_4;
1909 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1911 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1912 (ins rGPR:$Rn, rGPR:$Rm),
1913 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>,
1914 Requires<[IsThumb2, HasThumb2DSP]> {
1915 let Inst{15-12} = 0b1111;
1917 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1918 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1919 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>,
1920 Requires<[IsThumb2, HasThumb2DSP]>;
1922 // Signed/Unsigned saturate -- for disassembly only
1924 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1925 string opc, string asm, list<dag> pattern>
1926 : T2I<oops, iops, itin, opc, asm, pattern> {
1932 let Inst{11-8} = Rd;
1933 let Inst{19-16} = Rn;
1934 let Inst{4-0} = sat_imm;
1935 let Inst{21} = sh{5};
1936 let Inst{14-12} = sh{4-2};
1937 let Inst{7-6} = sh{1-0};
1941 (outs rGPR:$Rd), (ins imm1_32:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1942 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1943 [/* For disassembly only; pattern left blank */]> {
1944 let Inst{31-27} = 0b11110;
1945 let Inst{25-22} = 0b1100;
1950 def t2SSAT16: T2SatI<
1951 (outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary,
1952 "ssat16", "\t$Rd, $sat_imm, $Rn",
1953 [/* For disassembly only; pattern left blank */]>,
1954 Requires<[IsThumb2, HasThumb2DSP]> {
1955 let Inst{31-27} = 0b11110;
1956 let Inst{25-22} = 0b1100;
1959 let Inst{21} = 1; // sh = '1'
1960 let Inst{14-12} = 0b000; // imm3 = '000'
1961 let Inst{7-6} = 0b00; // imm2 = '00'
1965 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1966 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
1967 [/* For disassembly only; pattern left blank */]> {
1968 let Inst{31-27} = 0b11110;
1969 let Inst{25-22} = 0b1110;
1974 def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn),
1976 "usat16", "\t$Rd, $sat_imm, $Rn",
1977 [/* For disassembly only; pattern left blank */]>,
1978 Requires<[IsThumb2, HasThumb2DSP]> {
1979 let Inst{31-27} = 0b11110;
1980 let Inst{25-22} = 0b1110;
1983 let Inst{21} = 1; // sh = '1'
1984 let Inst{14-12} = 0b000; // imm3 = '000'
1985 let Inst{7-6} = 0b00; // imm2 = '00'
1988 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
1989 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
1991 //===----------------------------------------------------------------------===//
1992 // Shift and rotate Instructions.
1995 defm t2LSL : T2I_sh_ir<0b00, "lsl", imm0_31,
1996 BinOpFrag<(shl node:$LHS, node:$RHS)>, "t2LSL">;
1997 defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr,
1998 BinOpFrag<(srl node:$LHS, node:$RHS)>, "t2LSR">;
1999 defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr,
2000 BinOpFrag<(sra node:$LHS, node:$RHS)>, "t2ASR">;
2001 defm t2ROR : T2I_sh_ir<0b11, "ror", imm0_31,
2002 BinOpFrag<(rotr node:$LHS, node:$RHS)>, "t2ROR">;
2004 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
2005 def : Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
2006 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
2008 let Uses = [CPSR] in {
2009 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2010 "rrx", "\t$Rd, $Rm",
2011 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2012 let Inst{31-27} = 0b11101;
2013 let Inst{26-25} = 0b01;
2014 let Inst{24-21} = 0b0010;
2015 let Inst{19-16} = 0b1111; // Rn
2016 let Inst{14-12} = 0b000;
2017 let Inst{7-4} = 0b0011;
2021 let isCodeGenOnly = 1, Defs = [CPSR] in {
2022 def t2MOVsrl_flag : T2TwoRegShiftImm<
2023 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2024 "lsrs", ".w\t$Rd, $Rm, #1",
2025 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2026 let Inst{31-27} = 0b11101;
2027 let Inst{26-25} = 0b01;
2028 let Inst{24-21} = 0b0010;
2029 let Inst{20} = 1; // The S bit.
2030 let Inst{19-16} = 0b1111; // Rn
2031 let Inst{5-4} = 0b01; // Shift type.
2032 // Shift amount = Inst{14-12:7-6} = 1.
2033 let Inst{14-12} = 0b000;
2034 let Inst{7-6} = 0b01;
2036 def t2MOVsra_flag : T2TwoRegShiftImm<
2037 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2038 "asrs", ".w\t$Rd, $Rm, #1",
2039 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2040 let Inst{31-27} = 0b11101;
2041 let Inst{26-25} = 0b01;
2042 let Inst{24-21} = 0b0010;
2043 let Inst{20} = 1; // The S bit.
2044 let Inst{19-16} = 0b1111; // Rn
2045 let Inst{5-4} = 0b10; // Shift type.
2046 // Shift amount = Inst{14-12:7-6} = 1.
2047 let Inst{14-12} = 0b000;
2048 let Inst{7-6} = 0b01;
2052 //===----------------------------------------------------------------------===//
2053 // Bitwise Instructions.
2056 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2057 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2058 BinOpFrag<(and node:$LHS, node:$RHS)>, "t2AND", 1>;
2059 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2060 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2061 BinOpFrag<(or node:$LHS, node:$RHS)>, "t2ORR", 1>;
2062 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2063 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2064 BinOpFrag<(xor node:$LHS, node:$RHS)>, "t2EOR", 1>;
2066 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2067 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2068 BinOpFrag<(and node:$LHS, (not node:$RHS))>,
2071 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2072 string opc, string asm, list<dag> pattern>
2073 : T2I<oops, iops, itin, opc, asm, pattern> {
2078 let Inst{11-8} = Rd;
2079 let Inst{4-0} = msb{4-0};
2080 let Inst{14-12} = lsb{4-2};
2081 let Inst{7-6} = lsb{1-0};
2084 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2085 string opc, string asm, list<dag> pattern>
2086 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2089 let Inst{19-16} = Rn;
2092 let Constraints = "$src = $Rd" in
2093 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2094 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2095 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2096 let Inst{31-27} = 0b11110;
2097 let Inst{26} = 0; // should be 0.
2099 let Inst{24-20} = 0b10110;
2100 let Inst{19-16} = 0b1111; // Rn
2102 let Inst{5} = 0; // should be 0.
2105 let msb{4-0} = imm{9-5};
2106 let lsb{4-0} = imm{4-0};
2109 def t2SBFX: T2TwoRegBitFI<
2110 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2111 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2112 let Inst{31-27} = 0b11110;
2114 let Inst{24-20} = 0b10100;
2118 def t2UBFX: T2TwoRegBitFI<
2119 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2120 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2121 let Inst{31-27} = 0b11110;
2123 let Inst{24-20} = 0b11100;
2127 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2128 let Constraints = "$src = $Rd" in {
2129 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2130 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2131 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2132 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2133 bf_inv_mask_imm:$imm))]> {
2134 let Inst{31-27} = 0b11110;
2135 let Inst{26} = 0; // should be 0.
2137 let Inst{24-20} = 0b10110;
2139 let Inst{5} = 0; // should be 0.
2142 let msb{4-0} = imm{9-5};
2143 let lsb{4-0} = imm{4-0};
2146 // GNU as only supports this form of bfi (w/ 4 arguments)
2147 let isAsmParserOnly = 1 in
2148 def t2BFI4p : T2TwoRegBitFI<(outs rGPR:$Rd),
2149 (ins rGPR:$src, rGPR:$Rn, lsb_pos_imm:$lsbit,
2151 IIC_iBITi, "bfi", "\t$Rd, $Rn, $lsbit, $width",
2153 let Inst{31-27} = 0b11110;
2154 let Inst{26} = 0; // should be 0.
2156 let Inst{24-20} = 0b10110;
2158 let Inst{5} = 0; // should be 0.
2162 let msb{4-0} = width; // Custom encoder => lsb+width-1
2163 let lsb{4-0} = lsbit;
2167 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2168 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2169 BinOpFrag<(or node:$LHS, (not node:$RHS))>,
2172 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2173 let AddedComplexity = 1 in
2174 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2175 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2176 UnOpFrag<(not node:$Src)>, 1, 1>;
2179 let AddedComplexity = 1 in
2180 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2181 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2183 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2184 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2185 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2186 Requires<[IsThumb2]>;
2188 def : T2Pat<(t2_so_imm_not:$src),
2189 (t2MVNi t2_so_imm_not:$src)>;
2191 //===----------------------------------------------------------------------===//
2192 // Multiply Instructions.
2194 let isCommutable = 1 in
2195 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2196 "mul", "\t$Rd, $Rn, $Rm",
2197 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2198 let Inst{31-27} = 0b11111;
2199 let Inst{26-23} = 0b0110;
2200 let Inst{22-20} = 0b000;
2201 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2202 let Inst{7-4} = 0b0000; // Multiply
2205 def t2MLA: T2FourReg<
2206 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2207 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2208 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2209 let Inst{31-27} = 0b11111;
2210 let Inst{26-23} = 0b0110;
2211 let Inst{22-20} = 0b000;
2212 let Inst{7-4} = 0b0000; // Multiply
2215 def t2MLS: T2FourReg<
2216 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2217 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2218 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2219 let Inst{31-27} = 0b11111;
2220 let Inst{26-23} = 0b0110;
2221 let Inst{22-20} = 0b000;
2222 let Inst{7-4} = 0b0001; // Multiply and Subtract
2225 // Extra precision multiplies with low / high results
2226 let neverHasSideEffects = 1 in {
2227 let isCommutable = 1 in {
2228 def t2SMULL : T2MulLong<0b000, 0b0000,
2229 (outs rGPR:$RdLo, rGPR:$RdHi),
2230 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2231 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2233 def t2UMULL : T2MulLong<0b010, 0b0000,
2234 (outs rGPR:$RdLo, rGPR:$RdHi),
2235 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2236 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2239 // Multiply + accumulate
2240 def t2SMLAL : T2MulLong<0b100, 0b0000,
2241 (outs rGPR:$RdLo, rGPR:$RdHi),
2242 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2243 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2245 def t2UMLAL : T2MulLong<0b110, 0b0000,
2246 (outs rGPR:$RdLo, rGPR:$RdHi),
2247 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2248 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2250 def t2UMAAL : T2MulLong<0b110, 0b0110,
2251 (outs rGPR:$RdLo, rGPR:$RdHi),
2252 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2253 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2254 Requires<[IsThumb2, HasThumb2DSP]>;
2255 } // neverHasSideEffects
2257 // Rounding variants of the below included for disassembly only
2259 // Most significant word multiply
2260 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2261 "smmul", "\t$Rd, $Rn, $Rm",
2262 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]>,
2263 Requires<[IsThumb2, HasThumb2DSP]> {
2264 let Inst{31-27} = 0b11111;
2265 let Inst{26-23} = 0b0110;
2266 let Inst{22-20} = 0b101;
2267 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2268 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2271 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2272 "smmulr", "\t$Rd, $Rn, $Rm", []>,
2273 Requires<[IsThumb2, HasThumb2DSP]> {
2274 let Inst{31-27} = 0b11111;
2275 let Inst{26-23} = 0b0110;
2276 let Inst{22-20} = 0b101;
2277 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2278 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2281 def t2SMMLA : T2FourReg<
2282 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2283 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2284 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>,
2285 Requires<[IsThumb2, HasThumb2DSP]> {
2286 let Inst{31-27} = 0b11111;
2287 let Inst{26-23} = 0b0110;
2288 let Inst{22-20} = 0b101;
2289 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2292 def t2SMMLAR: T2FourReg<
2293 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2294 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
2295 Requires<[IsThumb2, HasThumb2DSP]> {
2296 let Inst{31-27} = 0b11111;
2297 let Inst{26-23} = 0b0110;
2298 let Inst{22-20} = 0b101;
2299 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2302 def t2SMMLS: T2FourReg<
2303 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2304 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2305 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>,
2306 Requires<[IsThumb2, HasThumb2DSP]> {
2307 let Inst{31-27} = 0b11111;
2308 let Inst{26-23} = 0b0110;
2309 let Inst{22-20} = 0b110;
2310 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2313 def t2SMMLSR:T2FourReg<
2314 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2315 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
2316 Requires<[IsThumb2, HasThumb2DSP]> {
2317 let Inst{31-27} = 0b11111;
2318 let Inst{26-23} = 0b0110;
2319 let Inst{22-20} = 0b110;
2320 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2323 multiclass T2I_smul<string opc, PatFrag opnode> {
2324 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2325 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2326 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2327 (sext_inreg rGPR:$Rm, i16)))]>,
2328 Requires<[IsThumb2, HasThumb2DSP]> {
2329 let Inst{31-27} = 0b11111;
2330 let Inst{26-23} = 0b0110;
2331 let Inst{22-20} = 0b001;
2332 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2333 let Inst{7-6} = 0b00;
2334 let Inst{5-4} = 0b00;
2337 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2338 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2339 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2340 (sra rGPR:$Rm, (i32 16))))]>,
2341 Requires<[IsThumb2, HasThumb2DSP]> {
2342 let Inst{31-27} = 0b11111;
2343 let Inst{26-23} = 0b0110;
2344 let Inst{22-20} = 0b001;
2345 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2346 let Inst{7-6} = 0b00;
2347 let Inst{5-4} = 0b01;
2350 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2351 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2352 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2353 (sext_inreg rGPR:$Rm, i16)))]>,
2354 Requires<[IsThumb2, HasThumb2DSP]> {
2355 let Inst{31-27} = 0b11111;
2356 let Inst{26-23} = 0b0110;
2357 let Inst{22-20} = 0b001;
2358 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2359 let Inst{7-6} = 0b00;
2360 let Inst{5-4} = 0b10;
2363 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2364 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2365 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2366 (sra rGPR:$Rm, (i32 16))))]>,
2367 Requires<[IsThumb2, HasThumb2DSP]> {
2368 let Inst{31-27} = 0b11111;
2369 let Inst{26-23} = 0b0110;
2370 let Inst{22-20} = 0b001;
2371 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2372 let Inst{7-6} = 0b00;
2373 let Inst{5-4} = 0b11;
2376 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2377 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2378 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2379 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]>,
2380 Requires<[IsThumb2, HasThumb2DSP]> {
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 Requires<[IsThumb2, HasThumb2DSP]> {
2394 let Inst{31-27} = 0b11111;
2395 let Inst{26-23} = 0b0110;
2396 let Inst{22-20} = 0b011;
2397 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2398 let Inst{7-6} = 0b00;
2399 let Inst{5-4} = 0b01;
2404 multiclass T2I_smla<string opc, PatFrag opnode> {
2406 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2407 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2408 [(set rGPR:$Rd, (add rGPR:$Ra,
2409 (opnode (sext_inreg rGPR:$Rn, i16),
2410 (sext_inreg rGPR:$Rm, i16))))]>,
2411 Requires<[IsThumb2, HasThumb2DSP]> {
2412 let Inst{31-27} = 0b11111;
2413 let Inst{26-23} = 0b0110;
2414 let Inst{22-20} = 0b001;
2415 let Inst{7-6} = 0b00;
2416 let Inst{5-4} = 0b00;
2420 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2421 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2422 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2423 (sra rGPR:$Rm, (i32 16)))))]>,
2424 Requires<[IsThumb2, HasThumb2DSP]> {
2425 let Inst{31-27} = 0b11111;
2426 let Inst{26-23} = 0b0110;
2427 let Inst{22-20} = 0b001;
2428 let Inst{7-6} = 0b00;
2429 let Inst{5-4} = 0b01;
2433 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2434 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2435 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2436 (sext_inreg rGPR:$Rm, i16))))]>,
2437 Requires<[IsThumb2, HasThumb2DSP]> {
2438 let Inst{31-27} = 0b11111;
2439 let Inst{26-23} = 0b0110;
2440 let Inst{22-20} = 0b001;
2441 let Inst{7-6} = 0b00;
2442 let Inst{5-4} = 0b10;
2446 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2447 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2448 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2449 (sra rGPR:$Rm, (i32 16)))))]>,
2450 Requires<[IsThumb2, HasThumb2DSP]> {
2451 let Inst{31-27} = 0b11111;
2452 let Inst{26-23} = 0b0110;
2453 let Inst{22-20} = 0b001;
2454 let Inst{7-6} = 0b00;
2455 let Inst{5-4} = 0b11;
2459 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2460 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2461 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2462 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]>,
2463 Requires<[IsThumb2, HasThumb2DSP]> {
2464 let Inst{31-27} = 0b11111;
2465 let Inst{26-23} = 0b0110;
2466 let Inst{22-20} = 0b011;
2467 let Inst{7-6} = 0b00;
2468 let Inst{5-4} = 0b00;
2472 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2473 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2474 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2475 (sra rGPR:$Rm, (i32 16))), (i32 16))))]>,
2476 Requires<[IsThumb2, HasThumb2DSP]> {
2477 let Inst{31-27} = 0b11111;
2478 let Inst{26-23} = 0b0110;
2479 let Inst{22-20} = 0b011;
2480 let Inst{7-6} = 0b00;
2481 let Inst{5-4} = 0b01;
2485 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2486 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2488 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2489 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2490 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2491 [/* For disassembly only; pattern left blank */]>,
2492 Requires<[IsThumb2, HasThumb2DSP]>;
2493 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2494 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2495 [/* For disassembly only; pattern left blank */]>,
2496 Requires<[IsThumb2, HasThumb2DSP]>;
2497 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2498 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2499 [/* For disassembly only; pattern left blank */]>,
2500 Requires<[IsThumb2, HasThumb2DSP]>;
2501 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2502 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2503 [/* For disassembly only; pattern left blank */]>,
2504 Requires<[IsThumb2, HasThumb2DSP]>;
2506 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2507 // These are for disassembly only.
2509 def t2SMUAD: T2ThreeReg_mac<
2510 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2511 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>,
2512 Requires<[IsThumb2, HasThumb2DSP]> {
2513 let Inst{15-12} = 0b1111;
2515 def t2SMUADX:T2ThreeReg_mac<
2516 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2517 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []>,
2518 Requires<[IsThumb2, HasThumb2DSP]> {
2519 let Inst{15-12} = 0b1111;
2521 def t2SMUSD: T2ThreeReg_mac<
2522 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2523 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []>,
2524 Requires<[IsThumb2, HasThumb2DSP]> {
2525 let Inst{15-12} = 0b1111;
2527 def t2SMUSDX:T2ThreeReg_mac<
2528 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2529 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []>,
2530 Requires<[IsThumb2, HasThumb2DSP]> {
2531 let Inst{15-12} = 0b1111;
2533 def t2SMLAD : T2FourReg_mac<
2534 0, 0b010, 0b0000, (outs rGPR:$Rd),
2535 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2536 "\t$Rd, $Rn, $Rm, $Ra", []>,
2537 Requires<[IsThumb2, HasThumb2DSP]>;
2538 def t2SMLADX : T2FourReg_mac<
2539 0, 0b010, 0b0001, (outs rGPR:$Rd),
2540 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2541 "\t$Rd, $Rn, $Rm, $Ra", []>,
2542 Requires<[IsThumb2, HasThumb2DSP]>;
2543 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2544 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2545 "\t$Rd, $Rn, $Rm, $Ra", []>,
2546 Requires<[IsThumb2, HasThumb2DSP]>;
2547 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2548 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2549 "\t$Rd, $Rn, $Rm, $Ra", []>,
2550 Requires<[IsThumb2, HasThumb2DSP]>;
2551 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2552 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2553 "\t$Ra, $Rd, $Rm, $Rn", []>,
2554 Requires<[IsThumb2, HasThumb2DSP]>;
2555 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2556 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2557 "\t$Ra, $Rd, $Rm, $Rn", []>,
2558 Requires<[IsThumb2, HasThumb2DSP]>;
2559 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2560 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2561 "\t$Ra, $Rd, $Rm, $Rn", []>,
2562 Requires<[IsThumb2, HasThumb2DSP]>;
2563 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2564 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2565 "\t$Ra, $Rd, $Rm, $Rn", []>,
2566 Requires<[IsThumb2, HasThumb2DSP]>;
2568 //===----------------------------------------------------------------------===//
2569 // Division Instructions.
2570 // Signed and unsigned division on v7-M
2572 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2573 "sdiv", "\t$Rd, $Rn, $Rm",
2574 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
2575 Requires<[HasDivide, IsThumb2]> {
2576 let Inst{31-27} = 0b11111;
2577 let Inst{26-21} = 0b011100;
2579 let Inst{15-12} = 0b1111;
2580 let Inst{7-4} = 0b1111;
2583 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2584 "udiv", "\t$Rd, $Rn, $Rm",
2585 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
2586 Requires<[HasDivide, IsThumb2]> {
2587 let Inst{31-27} = 0b11111;
2588 let Inst{26-21} = 0b011101;
2590 let Inst{15-12} = 0b1111;
2591 let Inst{7-4} = 0b1111;
2594 //===----------------------------------------------------------------------===//
2595 // Misc. Arithmetic Instructions.
2598 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2599 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2600 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2601 let Inst{31-27} = 0b11111;
2602 let Inst{26-22} = 0b01010;
2603 let Inst{21-20} = op1;
2604 let Inst{15-12} = 0b1111;
2605 let Inst{7-6} = 0b10;
2606 let Inst{5-4} = op2;
2610 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2611 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2613 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2614 "rbit", "\t$Rd, $Rm",
2615 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2617 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2618 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2620 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2621 "rev16", ".w\t$Rd, $Rm",
2622 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>;
2624 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2625 "revsh", ".w\t$Rd, $Rm",
2626 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>;
2628 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
2629 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
2630 (t2REVSH rGPR:$Rm)>;
2632 def t2PKHBT : T2ThreeReg<
2633 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
2634 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm, lsl $sh",
2635 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2636 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
2638 Requires<[HasT2ExtractPack, IsThumb2]> {
2639 let Inst{31-27} = 0b11101;
2640 let Inst{26-25} = 0b01;
2641 let Inst{24-20} = 0b01100;
2642 let Inst{5} = 0; // BT form
2646 let Inst{14-12} = sh{4-2};
2647 let Inst{7-6} = sh{1-0};
2650 // Alternate cases for PKHBT where identities eliminate some nodes.
2651 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2652 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2653 Requires<[HasT2ExtractPack, IsThumb2]>;
2654 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2655 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2656 Requires<[HasT2ExtractPack, IsThumb2]>;
2658 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2659 // will match the pattern below.
2660 def t2PKHTB : T2ThreeReg<
2661 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
2662 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm, asr $sh",
2663 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2664 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
2666 Requires<[HasT2ExtractPack, IsThumb2]> {
2667 let Inst{31-27} = 0b11101;
2668 let Inst{26-25} = 0b01;
2669 let Inst{24-20} = 0b01100;
2670 let Inst{5} = 1; // TB form
2674 let Inst{14-12} = sh{4-2};
2675 let Inst{7-6} = sh{1-0};
2678 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2679 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2680 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2681 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2682 Requires<[HasT2ExtractPack, IsThumb2]>;
2683 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2684 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2685 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
2686 Requires<[HasT2ExtractPack, IsThumb2]>;
2688 //===----------------------------------------------------------------------===//
2689 // Comparison Instructions...
2691 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2692 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2693 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>, "t2CMP">;
2695 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm),
2696 (t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>;
2697 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, rGPR:$rhs),
2698 (t2CMPrr GPRnopc:$lhs, rGPR:$rhs)>;
2699 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg:$rhs),
2700 (t2CMPrs GPRnopc:$lhs, t2_so_reg:$rhs)>;
2702 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2703 // Compare-to-zero still works out, just not the relationals
2704 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2705 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2706 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2707 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2708 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>,
2711 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2712 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2714 def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
2715 (t2CMNzri GPRnopc:$src, t2_so_imm_neg:$imm)>;
2717 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2718 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2719 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>,
2721 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2722 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2723 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>,
2726 // Conditional moves
2727 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2728 // a two-value operand where a dag node expects two operands. :(
2729 let neverHasSideEffects = 1 in {
2730 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
2731 (ins rGPR:$false, rGPR:$Rm, pred:$p),
2733 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2734 RegConstraint<"$false = $Rd">;
2736 let isMoveImm = 1 in
2737 def t2MOVCCi : t2PseudoInst<(outs rGPR:$Rd),
2738 (ins rGPR:$false, t2_so_imm:$imm, pred:$p),
2740 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2741 RegConstraint<"$false = $Rd">;
2743 // FIXME: Pseudo-ize these. For now, just mark codegen only.
2744 let isCodeGenOnly = 1 in {
2745 let isMoveImm = 1 in
2746 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, imm0_65535_expr:$imm),
2748 "movw", "\t$Rd, $imm", []>,
2749 RegConstraint<"$false = $Rd"> {
2750 let Inst{31-27} = 0b11110;
2752 let Inst{24-21} = 0b0010;
2753 let Inst{20} = 0; // The S bit.
2759 let Inst{11-8} = Rd;
2760 let Inst{19-16} = imm{15-12};
2761 let Inst{26} = imm{11};
2762 let Inst{14-12} = imm{10-8};
2763 let Inst{7-0} = imm{7-0};
2766 let isMoveImm = 1 in
2767 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2768 (ins rGPR:$false, i32imm:$src, pred:$p),
2769 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2771 let isMoveImm = 1 in
2772 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2773 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2774 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2775 imm:$cc, CCR:$ccr))*/]>,
2776 RegConstraint<"$false = $Rd"> {
2777 let Inst{31-27} = 0b11110;
2779 let Inst{24-21} = 0b0011;
2780 let Inst{20} = 0; // The S bit.
2781 let Inst{19-16} = 0b1111; // Rn
2785 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2786 string opc, string asm, list<dag> pattern>
2787 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2788 let Inst{31-27} = 0b11101;
2789 let Inst{26-25} = 0b01;
2790 let Inst{24-21} = 0b0010;
2791 let Inst{20} = 0; // The S bit.
2792 let Inst{19-16} = 0b1111; // Rn
2793 let Inst{5-4} = opcod; // Shift type.
2795 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2796 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2797 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2798 RegConstraint<"$false = $Rd">;
2799 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2800 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2801 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2802 RegConstraint<"$false = $Rd">;
2803 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2804 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2805 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2806 RegConstraint<"$false = $Rd">;
2807 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2808 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2809 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2810 RegConstraint<"$false = $Rd">;
2811 } // isCodeGenOnly = 1
2812 } // neverHasSideEffects
2814 //===----------------------------------------------------------------------===//
2815 // Atomic operations intrinsics
2818 // memory barriers protect the atomic sequences
2819 let hasSideEffects = 1 in {
2820 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2821 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2822 Requires<[IsThumb, HasDB]> {
2824 let Inst{31-4} = 0xf3bf8f5;
2825 let Inst{3-0} = opt;
2829 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2830 "dsb", "\t$opt", []>,
2831 Requires<[IsThumb, HasDB]> {
2833 let Inst{31-4} = 0xf3bf8f4;
2834 let Inst{3-0} = opt;
2837 def t2ISB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2839 []>, Requires<[IsThumb2, HasDB]> {
2841 let Inst{31-4} = 0xf3bf8f6;
2842 let Inst{3-0} = opt;
2845 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
2846 InstrItinClass itin, string opc, string asm, string cstr,
2847 list<dag> pattern, bits<4> rt2 = 0b1111>
2848 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2849 let Inst{31-27} = 0b11101;
2850 let Inst{26-20} = 0b0001101;
2851 let Inst{11-8} = rt2;
2852 let Inst{7-6} = 0b01;
2853 let Inst{5-4} = opcod;
2854 let Inst{3-0} = 0b1111;
2858 let Inst{19-16} = addr;
2859 let Inst{15-12} = Rt;
2861 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
2862 InstrItinClass itin, string opc, string asm, string cstr,
2863 list<dag> pattern, bits<4> rt2 = 0b1111>
2864 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2865 let Inst{31-27} = 0b11101;
2866 let Inst{26-20} = 0b0001100;
2867 let Inst{11-8} = rt2;
2868 let Inst{7-6} = 0b01;
2869 let Inst{5-4} = opcod;
2875 let Inst{19-16} = addr;
2876 let Inst{15-12} = Rt;
2879 let mayLoad = 1 in {
2880 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2881 AddrModeNone, 4, NoItinerary,
2882 "ldrexb", "\t$Rt, $addr", "", []>;
2883 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2884 AddrModeNone, 4, NoItinerary,
2885 "ldrexh", "\t$Rt, $addr", "", []>;
2886 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2887 AddrModeNone, 4, NoItinerary,
2888 "ldrex", "\t$Rt, $addr", "", []> {
2889 let Inst{31-27} = 0b11101;
2890 let Inst{26-20} = 0b0000101;
2891 let Inst{11-8} = 0b1111;
2892 let Inst{7-0} = 0b00000000; // imm8 = 0
2896 let Inst{19-16} = addr;
2897 let Inst{15-12} = Rt;
2899 let hasExtraDefRegAllocReq = 1 in
2900 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
2901 (ins t2addrmode_reg:$addr),
2902 AddrModeNone, 4, NoItinerary,
2903 "ldrexd", "\t$Rt, $Rt2, $addr", "",
2906 let Inst{11-8} = Rt2;
2910 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2911 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
2912 (ins rGPR:$Rt, t2addrmode_reg:$addr),
2913 AddrModeNone, 4, NoItinerary,
2914 "strexb", "\t$Rd, $Rt, $addr", "", []>;
2915 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
2916 (ins rGPR:$Rt, t2addrmode_reg:$addr),
2917 AddrModeNone, 4, NoItinerary,
2918 "strexh", "\t$Rd, $Rt, $addr", "", []>;
2919 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, t2addrmode_reg:$addr),
2920 AddrModeNone, 4, NoItinerary,
2921 "strex", "\t$Rd, $Rt, $addr", "",
2923 let Inst{31-27} = 0b11101;
2924 let Inst{26-20} = 0b0000100;
2925 let Inst{7-0} = 0b00000000; // imm8 = 0
2930 let Inst{11-8} = Rd;
2931 let Inst{19-16} = addr;
2932 let Inst{15-12} = Rt;
2936 let hasExtraSrcRegAllocReq = 1, Constraints = "@earlyclobber $Rd" in
2937 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2938 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_reg:$addr),
2939 AddrModeNone, 4, NoItinerary,
2940 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
2943 let Inst{11-8} = Rt2;
2946 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", []>,
2947 Requires<[IsThumb2, HasV7]> {
2948 let Inst{31-16} = 0xf3bf;
2949 let Inst{15-14} = 0b10;
2952 let Inst{11-8} = 0b1111;
2953 let Inst{7-4} = 0b0010;
2954 let Inst{3-0} = 0b1111;
2957 //===----------------------------------------------------------------------===//
2958 // SJLJ Exception handling intrinsics
2959 // eh_sjlj_setjmp() is an instruction sequence to store the return
2960 // address and save #0 in R0 for the non-longjmp case.
2961 // Since by its nature we may be coming from some other function to get
2962 // here, and we're using the stack frame for the containing function to
2963 // save/restore registers, we can't keep anything live in regs across
2964 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2965 // when we get here from a longjmp(). We force everything out of registers
2966 // except for our own input by listing the relevant registers in Defs. By
2967 // doing so, we also cause the prologue/epilogue code to actively preserve
2968 // all of the callee-saved resgisters, which is exactly what we want.
2969 // $val is a scratch register for our use.
2971 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
2972 QQQQ0, QQQQ1, QQQQ2, QQQQ3 ],
2973 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2974 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2975 AddrModeNone, 0, NoItinerary, "", "",
2976 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2977 Requires<[IsThumb2, HasVFP2]>;
2981 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
2982 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2983 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2984 AddrModeNone, 0, NoItinerary, "", "",
2985 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2986 Requires<[IsThumb2, NoVFP]>;
2990 //===----------------------------------------------------------------------===//
2991 // Control-Flow Instructions
2994 // FIXME: remove when we have a way to marking a MI with these properties.
2995 // FIXME: Should pc be an implicit operand like PICADD, etc?
2996 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2997 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2998 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2999 reglist:$regs, variable_ops),
3000 4, IIC_iLoad_mBr, [],
3001 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
3002 RegConstraint<"$Rn = $wb">;
3004 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
3005 let isPredicable = 1 in
3006 def t2B : T2XI<(outs), (ins uncondbrtarget:$target), IIC_Br,
3008 [(br bb:$target)]> {
3009 let Inst{31-27} = 0b11110;
3010 let Inst{15-14} = 0b10;
3014 let Inst{26} = target{19};
3015 let Inst{11} = target{18};
3016 let Inst{13} = target{17};
3017 let Inst{21-16} = target{16-11};
3018 let Inst{10-0} = target{10-0};
3021 let isNotDuplicable = 1, isIndirectBranch = 1 in {
3022 def t2BR_JT : t2PseudoInst<(outs),
3023 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3025 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
3027 // FIXME: Add a non-pc based case that can be predicated.
3028 def t2TBB_JT : t2PseudoInst<(outs),
3029 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3032 def t2TBH_JT : t2PseudoInst<(outs),
3033 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3036 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3037 "tbb", "\t[$Rn, $Rm]", []> {
3040 let Inst{31-20} = 0b111010001101;
3041 let Inst{19-16} = Rn;
3042 let Inst{15-5} = 0b11110000000;
3043 let Inst{4} = 0; // B form
3047 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3048 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3051 let Inst{31-20} = 0b111010001101;
3052 let Inst{19-16} = Rn;
3053 let Inst{15-5} = 0b11110000000;
3054 let Inst{4} = 1; // H form
3057 } // isNotDuplicable, isIndirectBranch
3059 } // isBranch, isTerminator, isBarrier
3061 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3062 // a two-value operand where a dag node expects two operands. :(
3063 let isBranch = 1, isTerminator = 1 in
3064 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3066 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3067 let Inst{31-27} = 0b11110;
3068 let Inst{15-14} = 0b10;
3072 let Inst{25-22} = p;
3075 let Inst{26} = target{20};
3076 let Inst{11} = target{19};
3077 let Inst{13} = target{18};
3078 let Inst{21-16} = target{17-12};
3079 let Inst{10-0} = target{11-1};
3081 let DecoderMethod = "DecodeThumb2BCCInstruction";
3084 // Tail calls. The Darwin version of thumb tail calls uses a t2 branch, so
3086 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3088 let Defs = [R0, R1, R2, R3, R9, R12, QQQQ0, QQQQ2, QQQQ3, PC],
3090 def tTAILJMPd: tPseudoExpand<(outs), (ins uncondbrtarget:$dst, variable_ops),
3092 (t2B uncondbrtarget:$dst)>,
3093 Requires<[IsThumb2, IsDarwin]>;
3097 let Defs = [ITSTATE] in
3098 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3099 AddrModeNone, 2, IIC_iALUx,
3100 "it$mask\t$cc", "", []> {
3101 // 16-bit instruction.
3102 let Inst{31-16} = 0x0000;
3103 let Inst{15-8} = 0b10111111;
3108 let Inst{3-0} = mask;
3110 let DecoderMethod = "DecodeIT";
3113 // Branch and Exchange Jazelle -- for disassembly only
3115 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func", []> {
3117 let Inst{31-27} = 0b11110;
3119 let Inst{25-20} = 0b111100;
3120 let Inst{19-16} = func;
3121 let Inst{15-0} = 0b1000111100000000;
3124 // Compare and branch on zero / non-zero
3125 let isBranch = 1, isTerminator = 1 in {
3126 def tCBZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3127 "cbz\t$Rn, $target", []>,
3128 T1Misc<{0,0,?,1,?,?,?}>,
3129 Requires<[IsThumb2]> {
3133 let Inst{9} = target{5};
3134 let Inst{7-3} = target{4-0};
3138 def tCBNZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3139 "cbnz\t$Rn, $target", []>,
3140 T1Misc<{1,0,?,1,?,?,?}>,
3141 Requires<[IsThumb2]> {
3145 let Inst{9} = target{5};
3146 let Inst{7-3} = target{4-0};
3152 // Change Processor State is a system instruction -- for disassembly and
3154 // FIXME: Since the asm parser has currently no clean way to handle optional
3155 // operands, create 3 versions of the same instruction. Once there's a clean
3156 // framework to represent optional operands, change this behavior.
3157 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3158 !strconcat("cps", asm_op),
3159 [/* For disassembly only; pattern left blank */]> {
3165 let Inst{31-27} = 0b11110;
3167 let Inst{25-20} = 0b111010;
3168 let Inst{19-16} = 0b1111;
3169 let Inst{15-14} = 0b10;
3171 let Inst{10-9} = imod;
3173 let Inst{7-5} = iflags;
3174 let Inst{4-0} = mode;
3175 let DecoderMethod = "DecodeT2CPSInstruction";
3179 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3180 "$imod.w\t$iflags, $mode">;
3181 let mode = 0, M = 0 in
3182 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3183 "$imod.w\t$iflags">;
3184 let imod = 0, iflags = 0, M = 1 in
3185 def t2CPS1p : t2CPS<(ins i32imm:$mode), "\t$mode">;
3187 // A6.3.4 Branches and miscellaneous control
3188 // Table A6-14 Change Processor State, and hint instructions
3189 // Helper class for disassembly only.
3190 class T2I_hint<bits<8> op7_0, string opc, string asm>
3191 : T2I<(outs), (ins), NoItinerary, opc, asm,
3192 [/* For disassembly only; pattern left blank */]> {
3193 let Inst{31-20} = 0xf3a;
3194 let Inst{19-16} = 0b1111;
3195 let Inst{15-14} = 0b10;
3197 let Inst{10-8} = 0b000;
3198 let Inst{7-0} = op7_0;
3201 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3202 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3203 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3204 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3205 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3207 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
3209 let Inst{31-20} = 0b111100111010;
3210 let Inst{19-16} = 0b1111;
3211 let Inst{15-8} = 0b10000000;
3212 let Inst{7-4} = 0b1111;
3213 let Inst{3-0} = opt;
3216 // Secure Monitor Call is a system instruction -- for disassembly only
3217 // Option = Inst{19-16}
3218 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
3219 [/* For disassembly only; pattern left blank */]> {
3220 let Inst{31-27} = 0b11110;
3221 let Inst{26-20} = 0b1111111;
3222 let Inst{15-12} = 0b1000;
3225 let Inst{19-16} = opt;
3228 class T2SRS<bits<12> op31_20,
3229 dag oops, dag iops, InstrItinClass itin,
3230 string opc, string asm, list<dag> pattern>
3231 : T2I<oops, iops, itin, opc, asm, pattern> {
3232 let Inst{31-20} = op31_20{11-0};
3235 let Inst{4-0} = mode{4-0};
3238 // Store Return State is a system instruction -- for disassembly only
3239 def t2SRSDBW : T2SRS<0b111010000010,
3240 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3241 [/* For disassembly only; pattern left blank */]>;
3242 def t2SRSDB : T2SRS<0b111010000000,
3243 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3244 [/* For disassembly only; pattern left blank */]>;
3245 def t2SRSIAW : T2SRS<0b111010011010,
3246 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3247 [/* For disassembly only; pattern left blank */]>;
3248 def t2SRSIA : T2SRS<0b111010011000,
3249 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3250 [/* For disassembly only; pattern left blank */]>;
3252 // Return From Exception is a system instruction -- for disassembly only
3254 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3255 string opc, string asm, list<dag> pattern>
3256 : T2I<oops, iops, itin, opc, asm, pattern> {
3257 let Inst{31-20} = op31_20{11-0};
3260 let Inst{19-16} = Rn;
3261 let Inst{15-0} = 0xc000;
3264 def t2RFEDBW : T2RFE<0b111010000011,
3265 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3266 [/* For disassembly only; pattern left blank */]>;
3267 def t2RFEDB : T2RFE<0b111010000001,
3268 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3269 [/* For disassembly only; pattern left blank */]>;
3270 def t2RFEIAW : T2RFE<0b111010011011,
3271 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3272 [/* For disassembly only; pattern left blank */]>;
3273 def t2RFEIA : T2RFE<0b111010011001,
3274 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3275 [/* For disassembly only; pattern left blank */]>;
3277 //===----------------------------------------------------------------------===//
3278 // Non-Instruction Patterns
3281 // 32-bit immediate using movw + movt.
3282 // This is a single pseudo instruction to make it re-materializable.
3283 // FIXME: Remove this when we can do generalized remat.
3284 let isReMaterializable = 1, isMoveImm = 1 in
3285 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3286 [(set rGPR:$dst, (i32 imm:$src))]>,
3287 Requires<[IsThumb, HasV6T2]>;
3289 // Pseudo instruction that combines movw + movt + add pc (if pic).
3290 // It also makes it possible to rematerialize the instructions.
3291 // FIXME: Remove this when we can do generalized remat and when machine licm
3292 // can properly the instructions.
3293 let isReMaterializable = 1 in {
3294 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3296 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3297 Requires<[IsThumb2, UseMovt]>;
3299 def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3301 [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3302 Requires<[IsThumb2, UseMovt]>;
3305 // ConstantPool, GlobalAddress, and JumpTable
3306 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3307 Requires<[IsThumb2, DontUseMovt]>;
3308 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3309 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3310 Requires<[IsThumb2, UseMovt]>;
3312 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3313 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3315 // Pseudo instruction that combines ldr from constpool and add pc. This should
3316 // be expanded into two instructions late to allow if-conversion and
3318 let canFoldAsLoad = 1, isReMaterializable = 1 in
3319 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3321 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3323 Requires<[IsThumb2]>;
3324 //===----------------------------------------------------------------------===//
3325 // Coprocessor load/store -- for disassembly only
3327 class T2CI<dag oops, dag iops, string opc, string asm>
3328 : T2I<oops, iops, NoItinerary, opc, asm, []> {
3329 let Inst{27-25} = 0b110;
3332 multiclass T2LdStCop<bits<4> op31_28, bit load, string opc> {
3333 def _OFFSET : T2CI<(outs),
3334 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3335 opc, "\tp$cop, cr$CRd, $addr"> {
3336 let Inst{31-28} = op31_28;
3337 let Inst{24} = 1; // P = 1
3338 let Inst{21} = 0; // W = 0
3339 let Inst{22} = 0; // D = 0
3340 let Inst{20} = load;
3341 let DecoderMethod = "DecodeCopMemInstruction";
3344 def _PRE : T2CI<(outs),
3345 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3346 opc, "\tp$cop, cr$CRd, $addr!"> {
3347 let Inst{31-28} = op31_28;
3348 let Inst{24} = 1; // P = 1
3349 let Inst{21} = 1; // W = 1
3350 let Inst{22} = 0; // D = 0
3351 let Inst{20} = load;
3352 let DecoderMethod = "DecodeCopMemInstruction";
3355 def _POST : T2CI<(outs),
3356 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3357 opc, "\tp$cop, cr$CRd, $addr"> {
3358 let Inst{31-28} = op31_28;
3359 let Inst{24} = 0; // P = 0
3360 let Inst{21} = 1; // W = 1
3361 let Inst{22} = 0; // D = 0
3362 let Inst{20} = load;
3363 let DecoderMethod = "DecodeCopMemInstruction";
3366 def _OPTION : T2CI<(outs),
3367 (ins nohash_imm:$cop,nohash_imm:$CRd,GPR:$base, nohash_imm:$option),
3368 opc, "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
3369 let Inst{31-28} = op31_28;
3370 let Inst{24} = 0; // P = 0
3371 let Inst{23} = 1; // U = 1
3372 let Inst{21} = 0; // W = 0
3373 let Inst{22} = 0; // D = 0
3374 let Inst{20} = load;
3375 let DecoderMethod = "DecodeCopMemInstruction";
3378 def L_OFFSET : T2CI<(outs),
3379 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3380 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr"> {
3381 let Inst{31-28} = op31_28;
3382 let Inst{24} = 1; // P = 1
3383 let Inst{21} = 0; // W = 0
3384 let Inst{22} = 1; // D = 1
3385 let Inst{20} = load;
3386 let DecoderMethod = "DecodeCopMemInstruction";
3389 def L_PRE : T2CI<(outs),
3390 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3391 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr!"> {
3392 let Inst{31-28} = op31_28;
3393 let Inst{24} = 1; // P = 1
3394 let Inst{21} = 1; // W = 1
3395 let Inst{22} = 1; // D = 1
3396 let Inst{20} = load;
3397 let DecoderMethod = "DecodeCopMemInstruction";
3400 def L_POST : T2CI<(outs),
3401 (ins nohash_imm:$cop, nohash_imm:$CRd, addr_offset_none:$addr,
3402 postidx_imm8s4:$offset),
3403 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr, $offset"> {
3404 let Inst{31-28} = op31_28;
3405 let Inst{24} = 0; // P = 0
3406 let Inst{21} = 1; // W = 1
3407 let Inst{22} = 1; // D = 1
3408 let Inst{20} = load;
3409 let DecoderMethod = "DecodeCopMemInstruction";
3412 def L_OPTION : T2CI<(outs),
3413 (ins nohash_imm:$cop, nohash_imm:$CRd,GPR:$base,nohash_imm:$option),
3414 !strconcat(opc, "l"), "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
3415 let Inst{31-28} = op31_28;
3416 let Inst{24} = 0; // P = 0
3417 let Inst{23} = 1; // U = 1
3418 let Inst{21} = 0; // W = 0
3419 let Inst{22} = 1; // D = 1
3420 let Inst{20} = load;
3421 let DecoderMethod = "DecodeCopMemInstruction";
3425 defm t2LDC : T2LdStCop<0b1111, 1, "ldc">;
3426 defm t2STC : T2LdStCop<0b1111, 0, "stc">;
3429 //===----------------------------------------------------------------------===//
3430 // Move between special register and ARM core register -- for disassembly only
3433 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3434 dag oops, dag iops, InstrItinClass itin,
3435 string opc, string asm, list<dag> pattern>
3436 : T2I<oops, iops, itin, opc, asm, pattern> {
3437 let Inst{31-20} = op31_20{11-0};
3438 let Inst{15-14} = op15_14{1-0};
3440 let Inst{12} = op12{0};
3444 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3445 dag oops, dag iops, InstrItinClass itin,
3446 string opc, string asm, list<dag> pattern>
3447 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3449 let Inst{11-8} = Rd;
3450 let Inst{19-16} = 0b1111;
3453 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3454 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3455 [/* For disassembly only; pattern left blank */]>;
3456 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3457 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3458 [/* For disassembly only; pattern left blank */]>;
3460 // Move from ARM core register to Special Register
3462 // No need to have both system and application versions, the encodings are the
3463 // same and the assembly parser has no way to distinguish between them. The mask
3464 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3465 // the mask with the fields to be accessed in the special register.
3466 def t2MSR : T2SpecialReg<0b111100111000 /* op31-20 */, 0b10 /* op15-14 */,
3467 0 /* op12 */, (outs), (ins msr_mask:$mask, rGPR:$Rn),
3468 NoItinerary, "msr", "\t$mask, $Rn",
3469 [/* For disassembly only; pattern left blank */]> {
3472 let Inst{19-16} = Rn;
3473 let Inst{20} = mask{4}; // R Bit
3474 let Inst{11-8} = mask{3-0};
3477 //===----------------------------------------------------------------------===//
3478 // Move between coprocessor and ARM core register
3481 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
3483 : T2Cop<Op, oops, iops,
3484 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3486 let Inst{27-24} = 0b1110;
3487 let Inst{20} = direction;
3497 let Inst{15-12} = Rt;
3498 let Inst{11-8} = cop;
3499 let Inst{23-21} = opc1;
3500 let Inst{7-5} = opc2;
3501 let Inst{3-0} = CRm;
3502 let Inst{19-16} = CRn;
3505 class t2MovRRCopro<bits<4> Op, string opc, bit direction,
3506 list<dag> pattern = []>
3508 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3509 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
3510 let Inst{27-24} = 0b1100;
3511 let Inst{23-21} = 0b010;
3512 let Inst{20} = direction;
3520 let Inst{15-12} = Rt;
3521 let Inst{19-16} = Rt2;
3522 let Inst{11-8} = cop;
3523 let Inst{7-4} = opc1;
3524 let Inst{3-0} = CRm;
3527 /* from ARM core register to coprocessor */
3528 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
3530 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3531 c_imm:$CRm, imm0_7:$opc2),
3532 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3533 imm:$CRm, imm:$opc2)]>;
3534 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
3535 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3536 c_imm:$CRm, imm0_7:$opc2),
3537 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3538 imm:$CRm, imm:$opc2)]>;
3540 /* from coprocessor to ARM core register */
3541 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
3542 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3543 c_imm:$CRm, imm0_7:$opc2), []>;
3545 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
3546 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3547 c_imm:$CRm, imm0_7:$opc2), []>;
3549 def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3550 (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3552 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3553 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3556 /* from ARM core register to coprocessor */
3557 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0,
3558 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
3560 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0,
3561 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
3562 GPR:$Rt2, imm:$CRm)]>;
3563 /* from coprocessor to ARM core register */
3564 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>;
3566 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1>;
3568 //===----------------------------------------------------------------------===//
3569 // Other Coprocessor Instructions.
3572 def tCDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3573 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3574 "cdp\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3575 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3576 imm:$CRm, imm:$opc2)]> {
3577 let Inst{27-24} = 0b1110;
3586 let Inst{3-0} = CRm;
3588 let Inst{7-5} = opc2;
3589 let Inst{11-8} = cop;
3590 let Inst{15-12} = CRd;
3591 let Inst{19-16} = CRn;
3592 let Inst{23-20} = opc1;
3595 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3596 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3597 "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3598 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3599 imm:$CRm, imm:$opc2)]> {
3600 let Inst{27-24} = 0b1110;
3609 let Inst{3-0} = CRm;
3611 let Inst{7-5} = opc2;
3612 let Inst{11-8} = cop;
3613 let Inst{15-12} = CRd;
3614 let Inst{19-16} = CRn;
3615 let Inst{23-20} = opc1;
3620 //===----------------------------------------------------------------------===//
3621 // Non-Instruction Patterns
3624 // SXT/UXT with no rotate
3625 let AddedComplexity = 16 in {
3626 def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>,
3627 Requires<[IsThumb2]>;
3628 def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>,
3629 Requires<[IsThumb2]>;
3630 def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>,
3631 Requires<[HasT2ExtractPack, IsThumb2]>;
3632 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)),
3633 (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3634 Requires<[HasT2ExtractPack, IsThumb2]>;
3635 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)),
3636 (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3637 Requires<[HasT2ExtractPack, IsThumb2]>;
3640 def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>,
3641 Requires<[IsThumb2]>;
3642 def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>,
3643 Requires<[IsThumb2]>;
3644 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)),
3645 (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3646 Requires<[HasT2ExtractPack, IsThumb2]>;
3647 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)),
3648 (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3649 Requires<[HasT2ExtractPack, IsThumb2]>;
3651 // Atomic load/store patterns
3652 def : T2Pat<(atomic_load_8 t2addrmode_imm12:$addr),
3653 (t2LDRBi12 t2addrmode_imm12:$addr)>;
3654 def : T2Pat<(atomic_load_8 t2addrmode_negimm8:$addr),
3655 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
3656 def : T2Pat<(atomic_load_8 t2addrmode_so_reg:$addr),
3657 (t2LDRBs t2addrmode_so_reg:$addr)>;
3658 def : T2Pat<(atomic_load_16 t2addrmode_imm12:$addr),
3659 (t2LDRHi12 t2addrmode_imm12:$addr)>;
3660 def : T2Pat<(atomic_load_16 t2addrmode_negimm8:$addr),
3661 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
3662 def : T2Pat<(atomic_load_16 t2addrmode_so_reg:$addr),
3663 (t2LDRHs t2addrmode_so_reg:$addr)>;
3664 def : T2Pat<(atomic_load_32 t2addrmode_imm12:$addr),
3665 (t2LDRi12 t2addrmode_imm12:$addr)>;
3666 def : T2Pat<(atomic_load_32 t2addrmode_negimm8:$addr),
3667 (t2LDRi8 t2addrmode_negimm8:$addr)>;
3668 def : T2Pat<(atomic_load_32 t2addrmode_so_reg:$addr),
3669 (t2LDRs t2addrmode_so_reg:$addr)>;
3670 def : T2Pat<(atomic_store_8 t2addrmode_imm12:$addr, GPR:$val),
3671 (t2STRBi12 GPR:$val, t2addrmode_imm12:$addr)>;
3672 def : T2Pat<(atomic_store_8 t2addrmode_negimm8:$addr, GPR:$val),
3673 (t2STRBi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3674 def : T2Pat<(atomic_store_8 t2addrmode_so_reg:$addr, GPR:$val),
3675 (t2STRBs GPR:$val, t2addrmode_so_reg:$addr)>;
3676 def : T2Pat<(atomic_store_16 t2addrmode_imm12:$addr, GPR:$val),
3677 (t2STRHi12 GPR:$val, t2addrmode_imm12:$addr)>;
3678 def : T2Pat<(atomic_store_16 t2addrmode_negimm8:$addr, GPR:$val),
3679 (t2STRHi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3680 def : T2Pat<(atomic_store_16 t2addrmode_so_reg:$addr, GPR:$val),
3681 (t2STRHs GPR:$val, t2addrmode_so_reg:$addr)>;
3682 def : T2Pat<(atomic_store_32 t2addrmode_imm12:$addr, GPR:$val),
3683 (t2STRi12 GPR:$val, t2addrmode_imm12:$addr)>;
3684 def : T2Pat<(atomic_store_32 t2addrmode_negimm8:$addr, GPR:$val),
3685 (t2STRi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3686 def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val),
3687 (t2STRs GPR:$val, t2addrmode_so_reg:$addr)>;
3690 //===----------------------------------------------------------------------===//
3691 // Assembler aliases
3694 // Aliases for ADC without the ".w" optional width specifier.
3695 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm",
3696 (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3697 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm",
3698 (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3699 pred:$p, cc_out:$s)>;
3701 // Aliases for SBC without the ".w" optional width specifier.
3702 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm",
3703 (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3704 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
3705 (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3706 pred:$p, cc_out:$s)>;
3708 // Aliases for ADD without the ".w" optional width specifier.
3709 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
3710 (t2ADDri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3711 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
3712 (t2ADDri12 rGPR:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
3713 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
3714 (t2ADDrr rGPR:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3715 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
3716 (t2ADDrs rGPR:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
3717 pred:$p, cc_out:$s)>;
3719 // Alias for compares without the ".w" optional width specifier.
3720 def : t2InstAlias<"cmn${p} $Rn, $Rm",
3721 (t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3722 def : t2InstAlias<"teq${p} $Rn, $Rm",
3723 (t2TEQrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3724 def : t2InstAlias<"tst${p} $Rn, $Rm",
3725 (t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3728 def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb2, HasDB]>;
3729 def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb2, HasDB]>;
3730 def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb2, HasDB]>;
3732 // Alias for LDR, LDRB, LDRH without the ".w" optional width specifier.
3733 def : t2InstAlias<"ldr${p} $Rt, $addr",
3734 (t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3735 def : t2InstAlias<"ldrb${p} $Rt, $addr",
3736 (t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3737 def : t2InstAlias<"ldrh${p} $Rt, $addr",
3738 (t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3739 def : t2InstAlias<"ldr${p} $Rt, $addr",
3740 (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3741 def : t2InstAlias<"ldrb${p} $Rt, $addr",
3742 (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3743 def : t2InstAlias<"ldrh${p} $Rt, $addr",
3744 (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;