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 t2addrmode_imm8s4 : Operand<i32> {
168 let PrintMethod = "printT2AddrModeImm8s4Operand";
169 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
170 let DecoderMethod = "DecodeT2AddrModeImm8s4";
171 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
174 def t2am_imm8s4_offset : Operand<i32> {
175 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
176 let DecoderMethod = "DecodeT2Imm8S4";
179 // t2addrmode_so_reg := reg + (reg << imm2)
180 def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";}
181 def t2addrmode_so_reg : Operand<i32>,
182 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
183 let PrintMethod = "printT2AddrModeSoRegOperand";
184 let EncoderMethod = "getT2AddrModeSORegOpValue";
185 let DecoderMethod = "DecodeT2AddrModeSOReg";
186 let ParserMatchClass = t2addrmode_so_reg_asmoperand;
187 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
190 // t2addrmode_reg := reg
191 // Used by load/store exclusive instructions. Useful to enable right assembly
192 // parsing and printing. Not used for any codegen matching.
194 def t2addrmode_reg : Operand<i32> {
195 let PrintMethod = "printAddrMode7Operand";
196 let DecoderMethod = "DecodeGPRRegisterClass";
197 let MIOperandInfo = (ops GPR);
200 //===----------------------------------------------------------------------===//
201 // Multiclass helpers...
205 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
206 string opc, string asm, list<dag> pattern>
207 : T2I<oops, iops, itin, opc, asm, pattern> {
212 let Inst{26} = imm{11};
213 let Inst{14-12} = imm{10-8};
214 let Inst{7-0} = imm{7-0};
218 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
219 string opc, string asm, list<dag> pattern>
220 : T2sI<oops, iops, itin, opc, asm, pattern> {
226 let Inst{26} = imm{11};
227 let Inst{14-12} = imm{10-8};
228 let Inst{7-0} = imm{7-0};
231 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
232 string opc, string asm, list<dag> pattern>
233 : T2I<oops, iops, itin, opc, asm, pattern> {
237 let Inst{19-16} = Rn;
238 let Inst{26} = imm{11};
239 let Inst{14-12} = imm{10-8};
240 let Inst{7-0} = imm{7-0};
244 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
245 string opc, string asm, list<dag> pattern>
246 : T2I<oops, iops, itin, opc, asm, pattern> {
251 let Inst{3-0} = ShiftedRm{3-0};
252 let Inst{5-4} = ShiftedRm{6-5};
253 let Inst{14-12} = ShiftedRm{11-9};
254 let Inst{7-6} = ShiftedRm{8-7};
257 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
258 string opc, string asm, list<dag> pattern>
259 : T2sI<oops, iops, itin, opc, asm, pattern> {
264 let Inst{3-0} = ShiftedRm{3-0};
265 let Inst{5-4} = ShiftedRm{6-5};
266 let Inst{14-12} = ShiftedRm{11-9};
267 let Inst{7-6} = ShiftedRm{8-7};
270 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
271 string opc, string asm, list<dag> pattern>
272 : T2I<oops, iops, itin, opc, asm, pattern> {
276 let Inst{19-16} = Rn;
277 let Inst{3-0} = ShiftedRm{3-0};
278 let Inst{5-4} = ShiftedRm{6-5};
279 let Inst{14-12} = ShiftedRm{11-9};
280 let Inst{7-6} = ShiftedRm{8-7};
283 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
284 string opc, string asm, list<dag> pattern>
285 : T2I<oops, iops, itin, opc, asm, pattern> {
293 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
294 string opc, string asm, list<dag> pattern>
295 : T2sI<oops, iops, itin, opc, asm, pattern> {
303 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
304 string opc, string asm, list<dag> pattern>
305 : T2I<oops, iops, itin, opc, asm, pattern> {
309 let Inst{19-16} = Rn;
314 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
315 string opc, string asm, list<dag> pattern>
316 : T2I<oops, iops, itin, opc, asm, pattern> {
322 let Inst{19-16} = Rn;
323 let Inst{26} = imm{11};
324 let Inst{14-12} = imm{10-8};
325 let Inst{7-0} = imm{7-0};
328 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
329 string opc, string asm, list<dag> pattern>
330 : T2sI<oops, iops, itin, opc, asm, pattern> {
336 let Inst{19-16} = Rn;
337 let Inst{26} = imm{11};
338 let Inst{14-12} = imm{10-8};
339 let Inst{7-0} = imm{7-0};
342 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
343 string opc, string asm, list<dag> pattern>
344 : T2I<oops, iops, itin, opc, asm, pattern> {
351 let Inst{14-12} = imm{4-2};
352 let Inst{7-6} = imm{1-0};
355 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
356 string opc, string asm, list<dag> pattern>
357 : T2sI<oops, iops, itin, opc, asm, pattern> {
364 let Inst{14-12} = imm{4-2};
365 let Inst{7-6} = imm{1-0};
368 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
369 string opc, string asm, list<dag> pattern>
370 : T2I<oops, iops, itin, opc, asm, pattern> {
376 let Inst{19-16} = Rn;
380 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
381 string opc, string asm, list<dag> pattern>
382 : T2sI<oops, iops, itin, opc, asm, pattern> {
388 let Inst{19-16} = Rn;
392 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
393 string opc, string asm, list<dag> pattern>
394 : T2I<oops, iops, itin, opc, asm, pattern> {
400 let Inst{19-16} = Rn;
401 let Inst{3-0} = ShiftedRm{3-0};
402 let Inst{5-4} = ShiftedRm{6-5};
403 let Inst{14-12} = ShiftedRm{11-9};
404 let Inst{7-6} = ShiftedRm{8-7};
407 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
408 string opc, string asm, list<dag> pattern>
409 : T2sI<oops, iops, itin, opc, asm, pattern> {
415 let Inst{19-16} = Rn;
416 let Inst{3-0} = ShiftedRm{3-0};
417 let Inst{5-4} = ShiftedRm{6-5};
418 let Inst{14-12} = ShiftedRm{11-9};
419 let Inst{7-6} = ShiftedRm{8-7};
422 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
423 string opc, string asm, list<dag> pattern>
424 : T2I<oops, iops, itin, opc, asm, pattern> {
430 let Inst{19-16} = Rn;
431 let Inst{15-12} = Ra;
436 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
437 dag oops, dag iops, InstrItinClass itin,
438 string opc, string asm, list<dag> pattern>
439 : T2I<oops, iops, itin, opc, asm, pattern> {
445 let Inst{31-23} = 0b111110111;
446 let Inst{22-20} = opc22_20;
447 let Inst{19-16} = Rn;
448 let Inst{15-12} = RdLo;
449 let Inst{11-8} = RdHi;
450 let Inst{7-4} = opc7_4;
455 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
456 /// unary operation that produces a value. These are predicable and can be
457 /// changed to modify CPSR.
458 multiclass T2I_un_irs<bits<4> opcod, string opc,
459 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
460 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
462 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
464 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
465 let isAsCheapAsAMove = Cheap;
466 let isReMaterializable = ReMat;
467 let Inst{31-27} = 0b11110;
469 let Inst{24-21} = opcod;
470 let Inst{19-16} = 0b1111; // Rn
474 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
476 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
477 let Inst{31-27} = 0b11101;
478 let Inst{26-25} = 0b01;
479 let Inst{24-21} = opcod;
480 let Inst{19-16} = 0b1111; // Rn
481 let Inst{14-12} = 0b000; // imm3
482 let Inst{7-6} = 0b00; // imm2
483 let Inst{5-4} = 0b00; // type
486 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
487 opc, ".w\t$Rd, $ShiftedRm",
488 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
489 let Inst{31-27} = 0b11101;
490 let Inst{26-25} = 0b01;
491 let Inst{24-21} = opcod;
492 let Inst{19-16} = 0b1111; // Rn
496 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
497 /// binary operation that produces a value. These are predicable and can be
498 /// changed to modify CPSR.
499 multiclass T2I_bin_irs<bits<4> opcod, string opc,
500 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
501 PatFrag opnode, string baseOpc, bit Commutable = 0,
504 def ri : T2sTwoRegImm<
505 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
506 opc, "\t$Rd, $Rn, $imm",
507 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
508 let Inst{31-27} = 0b11110;
510 let Inst{24-21} = opcod;
514 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
515 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
516 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
517 let isCommutable = Commutable;
518 let Inst{31-27} = 0b11101;
519 let Inst{26-25} = 0b01;
520 let Inst{24-21} = opcod;
521 let Inst{14-12} = 0b000; // imm3
522 let Inst{7-6} = 0b00; // imm2
523 let Inst{5-4} = 0b00; // type
526 def rs : T2sTwoRegShiftedReg<
527 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
528 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
529 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
530 let Inst{31-27} = 0b11101;
531 let Inst{26-25} = 0b01;
532 let Inst{24-21} = opcod;
534 // Assembly aliases for optional destination operand when it's the same
535 // as the source operand.
536 def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
537 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
538 t2_so_imm:$imm, pred:$p,
540 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
541 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
544 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
545 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
546 t2_so_reg:$shift, pred:$p,
550 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
551 // the ".w" suffix to indicate that they are wide.
552 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
553 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
554 PatFrag opnode, string baseOpc, bit Commutable = 0> :
555 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, baseOpc, Commutable, ".w"> {
556 // Assembler aliases w/o the ".w" suffix.
557 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
558 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rd, rGPR:$Rn,
561 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"),
562 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rd, rGPR:$Rn,
563 t2_so_reg:$shift, pred:$p,
566 // and with the optional destination operand, too.
567 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
568 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
571 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"),
572 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
573 t2_so_reg:$shift, pred:$p,
577 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
578 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
579 /// it is equivalent to the T2I_bin_irs counterpart.
580 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
582 def ri : T2sTwoRegImm<
583 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
584 opc, ".w\t$Rd, $Rn, $imm",
585 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
586 let Inst{31-27} = 0b11110;
588 let Inst{24-21} = opcod;
592 def rr : T2sThreeReg<
593 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
594 opc, "\t$Rd, $Rn, $Rm",
595 [/* For disassembly only; pattern left blank */]> {
596 let Inst{31-27} = 0b11101;
597 let Inst{26-25} = 0b01;
598 let Inst{24-21} = opcod;
599 let Inst{14-12} = 0b000; // imm3
600 let Inst{7-6} = 0b00; // imm2
601 let Inst{5-4} = 0b00; // type
604 def rs : T2sTwoRegShiftedReg<
605 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
606 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
607 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
608 let Inst{31-27} = 0b11101;
609 let Inst{26-25} = 0b01;
610 let Inst{24-21} = opcod;
614 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
615 /// instruction modifies the CPSR register.
616 let hasPostISelHook = 1, isCodeGenOnly = 1, Defs = [CPSR] in {
617 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
618 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
619 PatFrag opnode, bit Commutable = 0> {
621 def ri : T2sTwoRegImm<
622 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
623 opc, ".w\t$Rd, $Rn, $imm",
624 [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
625 let Inst{31-27} = 0b11110;
627 let Inst{24-21} = opcod;
631 def rr : T2sThreeReg<
632 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
633 opc, ".w\t$Rd, $Rn, $Rm",
634 [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, rGPR:$Rm))]> {
635 let isCommutable = Commutable;
636 let Inst{31-27} = 0b11101;
637 let Inst{26-25} = 0b01;
638 let Inst{24-21} = opcod;
639 let Inst{14-12} = 0b000; // imm3
640 let Inst{7-6} = 0b00; // imm2
641 let Inst{5-4} = 0b00; // type
644 def rs : T2sTwoRegShiftedReg<
645 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
646 opc, ".w\t$Rd, $Rn, $ShiftedRm",
647 [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
648 let Inst{31-27} = 0b11101;
649 let Inst{26-25} = 0b01;
650 let Inst{24-21} = opcod;
655 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
656 /// patterns for a binary operation that produces a value.
657 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
658 bit Commutable = 0> {
660 // The register-immediate version is re-materializable. This is useful
661 // in particular for taking the address of a local.
662 let isReMaterializable = 1 in {
663 def ri : T2sTwoRegImm<
664 (outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
665 opc, ".w\t$Rd, $Rn, $imm",
666 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]> {
667 let Inst{31-27} = 0b11110;
670 let Inst{23-21} = op23_21;
676 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
677 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
678 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
682 let Inst{31-27} = 0b11110;
683 let Inst{26} = imm{11};
684 let Inst{25-24} = 0b10;
685 let Inst{23-21} = op23_21;
686 let Inst{20} = 0; // The S bit.
687 let Inst{19-16} = Rn;
689 let Inst{14-12} = imm{10-8};
691 let Inst{7-0} = imm{7-0};
694 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iALUr,
695 opc, ".w\t$Rd, $Rn, $Rm",
696 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]> {
697 let isCommutable = Commutable;
698 let Inst{31-27} = 0b11101;
699 let Inst{26-25} = 0b01;
701 let Inst{23-21} = op23_21;
702 let Inst{14-12} = 0b000; // imm3
703 let Inst{7-6} = 0b00; // imm2
704 let Inst{5-4} = 0b00; // type
707 def rs : T2sTwoRegShiftedReg<
708 (outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
709 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
710 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]> {
711 let Inst{31-27} = 0b11101;
712 let Inst{26-25} = 0b01;
714 let Inst{23-21} = op23_21;
718 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
719 /// for a binary operation that produces a value and use the carry
720 /// bit. It's not predicable.
721 let Defs = [CPSR], Uses = [CPSR] in {
722 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
723 bit Commutable = 0> {
725 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
726 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
727 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_imm:$imm, CPSR))]>,
728 Requires<[IsThumb2]> {
729 let Inst{31-27} = 0b11110;
731 let Inst{24-21} = opcod;
735 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
736 opc, ".w\t$Rd, $Rn, $Rm",
737 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, rGPR:$Rm, CPSR))]>,
738 Requires<[IsThumb2]> {
739 let isCommutable = Commutable;
740 let Inst{31-27} = 0b11101;
741 let Inst{26-25} = 0b01;
742 let Inst{24-21} = opcod;
743 let Inst{14-12} = 0b000; // imm3
744 let Inst{7-6} = 0b00; // imm2
745 let Inst{5-4} = 0b00; // type
748 def rs : T2sTwoRegShiftedReg<
749 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
750 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
751 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm, CPSR))]>,
752 Requires<[IsThumb2]> {
753 let Inst{31-27} = 0b11101;
754 let Inst{26-25} = 0b01;
755 let Inst{24-21} = opcod;
760 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
761 /// version is not needed since this is only for codegen.
762 let hasPostISelHook = 1, isCodeGenOnly = 1, Defs = [CPSR] in {
763 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
765 def ri : T2sTwoRegImm<
766 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
767 opc, ".w\t$Rd, $Rn, $imm",
768 [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
769 let Inst{31-27} = 0b11110;
771 let Inst{24-21} = opcod;
775 def rs : T2sTwoRegShiftedReg<
776 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
777 IIC_iALUsi, opc, "\t$Rd, $Rn, $ShiftedRm",
778 [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
779 let Inst{31-27} = 0b11101;
780 let Inst{26-25} = 0b01;
781 let Inst{24-21} = opcod;
786 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
787 // rotate operation that produces a value.
788 multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, PatFrag opnode,
791 def ri : T2sTwoRegShiftImm<
792 (outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi,
793 opc, ".w\t$Rd, $Rm, $imm",
794 [(set rGPR:$Rd, (opnode rGPR:$Rm, (i32 ty:$imm)))]> {
795 let Inst{31-27} = 0b11101;
796 let Inst{26-21} = 0b010010;
797 let Inst{19-16} = 0b1111; // Rn
798 let Inst{5-4} = opcod;
801 def rr : T2sThreeReg<
802 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
803 opc, ".w\t$Rd, $Rn, $Rm",
804 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
805 let Inst{31-27} = 0b11111;
806 let Inst{26-23} = 0b0100;
807 let Inst{22-21} = opcod;
808 let Inst{15-12} = 0b1111;
809 let Inst{7-4} = 0b0000;
812 // Optional destination register
813 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"),
814 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
817 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"),
818 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
822 // Assembler aliases w/o the ".w" suffix.
823 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"),
824 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rd, rGPR:$Rn,
827 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
828 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rd, rGPR:$Rn,
832 // and with the optional destination operand, too.
833 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"),
834 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
837 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
838 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
843 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
844 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
845 /// a explicit result, only implicitly set CPSR.
846 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
847 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
848 PatFrag opnode, string baseOpc> {
849 let isCompare = 1, Defs = [CPSR] in {
851 def ri : T2OneRegCmpImm<
852 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), iii,
853 opc, ".w\t$Rn, $imm",
854 [(opnode GPRnopc:$Rn, t2_so_imm:$imm)]> {
855 let Inst{31-27} = 0b11110;
857 let Inst{24-21} = opcod;
858 let Inst{20} = 1; // The S bit.
860 let Inst{11-8} = 0b1111; // Rd
863 def rr : T2TwoRegCmp<
864 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), iir,
866 [(opnode GPRnopc:$Rn, rGPR:$Rm)]> {
867 let Inst{31-27} = 0b11101;
868 let Inst{26-25} = 0b01;
869 let Inst{24-21} = opcod;
870 let Inst{20} = 1; // The S bit.
871 let Inst{14-12} = 0b000; // imm3
872 let Inst{11-8} = 0b1111; // Rd
873 let Inst{7-6} = 0b00; // imm2
874 let Inst{5-4} = 0b00; // type
877 def rs : T2OneRegCmpShiftedReg<
878 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), iis,
879 opc, ".w\t$Rn, $ShiftedRm",
880 [(opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]> {
881 let Inst{31-27} = 0b11101;
882 let Inst{26-25} = 0b01;
883 let Inst{24-21} = opcod;
884 let Inst{20} = 1; // The S bit.
885 let Inst{11-8} = 0b1111; // Rd
889 // Assembler aliases w/o the ".w" suffix.
890 // No alias here for 'rr' version as not all instantiations of this
891 // multiclass want one (CMP in particular, does not).
892 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"),
893 (!cast<Instruction>(!strconcat(baseOpc, "ri")) GPRnopc:$Rn,
894 t2_so_imm:$imm, pred:$p)>;
895 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"),
896 (!cast<Instruction>(!strconcat(baseOpc, "rs")) GPRnopc:$Rn,
901 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
902 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
903 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
905 def i12 : T2Ii12<(outs target:$Rt), (ins t2addrmode_imm12:$addr), iii,
906 opc, ".w\t$Rt, $addr",
907 [(set target:$Rt, (opnode t2addrmode_imm12:$addr))]> {
910 let Inst{31-25} = 0b1111100;
911 let Inst{24} = signed;
913 let Inst{22-21} = opcod;
914 let Inst{20} = 1; // load
915 let Inst{19-16} = addr{16-13}; // Rn
916 let Inst{15-12} = Rt;
917 let Inst{11-0} = addr{11-0}; // imm
919 def i8 : T2Ii8 <(outs target:$Rt), (ins t2addrmode_negimm8:$addr), iii,
921 [(set target:$Rt, (opnode t2addrmode_negimm8:$addr))]> {
924 let Inst{31-27} = 0b11111;
925 let Inst{26-25} = 0b00;
926 let Inst{24} = signed;
928 let Inst{22-21} = opcod;
929 let Inst{20} = 1; // load
930 let Inst{19-16} = addr{12-9}; // Rn
931 let Inst{15-12} = Rt;
933 // Offset: index==TRUE, wback==FALSE
934 let Inst{10} = 1; // The P bit.
935 let Inst{9} = addr{8}; // U
936 let Inst{8} = 0; // The W bit.
937 let Inst{7-0} = addr{7-0}; // imm
939 def s : T2Iso <(outs target:$Rt), (ins t2addrmode_so_reg:$addr), iis,
940 opc, ".w\t$Rt, $addr",
941 [(set target:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
942 let Inst{31-27} = 0b11111;
943 let Inst{26-25} = 0b00;
944 let Inst{24} = signed;
946 let Inst{22-21} = opcod;
947 let Inst{20} = 1; // load
948 let Inst{11-6} = 0b000000;
951 let Inst{15-12} = Rt;
954 let Inst{19-16} = addr{9-6}; // Rn
955 let Inst{3-0} = addr{5-2}; // Rm
956 let Inst{5-4} = addr{1-0}; // imm
958 let DecoderMethod = "DecodeT2LoadShift";
961 // FIXME: Is the pci variant actually needed?
962 def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
963 opc, ".w\t$Rt, $addr",
964 [(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
965 let isReMaterializable = 1;
966 let Inst{31-27} = 0b11111;
967 let Inst{26-25} = 0b00;
968 let Inst{24} = signed;
969 let Inst{23} = ?; // add = (U == '1')
970 let Inst{22-21} = opcod;
971 let Inst{20} = 1; // load
972 let Inst{19-16} = 0b1111; // Rn
975 let Inst{15-12} = Rt{3-0};
976 let Inst{11-0} = addr{11-0};
980 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
981 multiclass T2I_st<bits<2> opcod, string opc,
982 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
984 def i12 : T2Ii12<(outs), (ins target:$Rt, t2addrmode_imm12:$addr), iii,
985 opc, ".w\t$Rt, $addr",
986 [(opnode target:$Rt, t2addrmode_imm12:$addr)]> {
987 let Inst{31-27} = 0b11111;
988 let Inst{26-23} = 0b0001;
989 let Inst{22-21} = opcod;
990 let Inst{20} = 0; // !load
993 let Inst{15-12} = Rt;
996 let addr{12} = 1; // add = TRUE
997 let Inst{19-16} = addr{16-13}; // Rn
998 let Inst{23} = addr{12}; // U
999 let Inst{11-0} = addr{11-0}; // imm
1001 def i8 : T2Ii8 <(outs), (ins target:$Rt, t2addrmode_negimm8:$addr), iii,
1002 opc, "\t$Rt, $addr",
1003 [(opnode target:$Rt, t2addrmode_negimm8:$addr)]> {
1004 let Inst{31-27} = 0b11111;
1005 let Inst{26-23} = 0b0000;
1006 let Inst{22-21} = opcod;
1007 let Inst{20} = 0; // !load
1009 // Offset: index==TRUE, wback==FALSE
1010 let Inst{10} = 1; // The P bit.
1011 let Inst{8} = 0; // The W bit.
1014 let Inst{15-12} = Rt;
1017 let Inst{19-16} = addr{12-9}; // Rn
1018 let Inst{9} = addr{8}; // U
1019 let Inst{7-0} = addr{7-0}; // imm
1021 def s : T2Iso <(outs), (ins target:$Rt, t2addrmode_so_reg:$addr), iis,
1022 opc, ".w\t$Rt, $addr",
1023 [(opnode target:$Rt, t2addrmode_so_reg:$addr)]> {
1024 let Inst{31-27} = 0b11111;
1025 let Inst{26-23} = 0b0000;
1026 let Inst{22-21} = opcod;
1027 let Inst{20} = 0; // !load
1028 let Inst{11-6} = 0b000000;
1031 let Inst{15-12} = Rt;
1034 let Inst{19-16} = addr{9-6}; // Rn
1035 let Inst{3-0} = addr{5-2}; // Rm
1036 let Inst{5-4} = addr{1-0}; // imm
1040 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
1041 /// register and one whose operand is a register rotated by 8/16/24.
1042 class T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode>
1043 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1044 opc, ".w\t$Rd, $Rm$rot",
1045 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1046 Requires<[IsThumb2]> {
1047 let Inst{31-27} = 0b11111;
1048 let Inst{26-23} = 0b0100;
1049 let Inst{22-20} = opcod;
1050 let Inst{19-16} = 0b1111; // Rn
1051 let Inst{15-12} = 0b1111;
1055 let Inst{5-4} = rot{1-0}; // rotate
1058 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
1059 class T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode>
1060 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot),
1061 IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
1062 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1063 Requires<[HasT2ExtractPack, IsThumb2]> {
1065 let Inst{31-27} = 0b11111;
1066 let Inst{26-23} = 0b0100;
1067 let Inst{22-20} = opcod;
1068 let Inst{19-16} = 0b1111; // Rn
1069 let Inst{15-12} = 0b1111;
1071 let Inst{5-4} = rot;
1074 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1076 class T2I_ext_rrot_sxtb16<bits<3> opcod, string opc>
1077 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1078 opc, "\t$Rd, $Rm$rot", []>,
1079 Requires<[IsThumb2, HasT2ExtractPack]> {
1081 let Inst{31-27} = 0b11111;
1082 let Inst{26-23} = 0b0100;
1083 let Inst{22-20} = opcod;
1084 let Inst{19-16} = 0b1111; // Rn
1085 let Inst{15-12} = 0b1111;
1087 let Inst{5-4} = rot;
1090 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1091 /// register and one whose operand is a register rotated by 8/16/24.
1092 class T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode>
1093 : T2ThreeReg<(outs rGPR:$Rd),
1094 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1095 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot",
1096 [(set rGPR:$Rd, (opnode rGPR:$Rn, (rotr rGPR:$Rm,rot_imm:$rot)))]>,
1097 Requires<[HasT2ExtractPack, IsThumb2]> {
1099 let Inst{31-27} = 0b11111;
1100 let Inst{26-23} = 0b0100;
1101 let Inst{22-20} = opcod;
1102 let Inst{15-12} = 0b1111;
1104 let Inst{5-4} = rot;
1107 class T2I_exta_rrot_np<bits<3> opcod, string opc>
1108 : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm,rot_imm:$rot),
1109 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []> {
1111 let Inst{31-27} = 0b11111;
1112 let Inst{26-23} = 0b0100;
1113 let Inst{22-20} = opcod;
1114 let Inst{15-12} = 0b1111;
1116 let Inst{5-4} = rot;
1119 //===----------------------------------------------------------------------===//
1121 //===----------------------------------------------------------------------===//
1123 //===----------------------------------------------------------------------===//
1124 // Miscellaneous Instructions.
1127 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1128 string asm, list<dag> pattern>
1129 : T2XI<oops, iops, itin, asm, pattern> {
1133 let Inst{11-8} = Rd;
1134 let Inst{26} = label{11};
1135 let Inst{14-12} = label{10-8};
1136 let Inst{7-0} = label{7-0};
1139 // LEApcrel - Load a pc-relative address into a register without offending the
1141 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1142 (ins t2adrlabel:$addr, pred:$p),
1143 IIC_iALUi, "adr{$p}.w\t$Rd, #$addr", []> {
1144 let Inst{31-27} = 0b11110;
1145 let Inst{25-24} = 0b10;
1146 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1149 let Inst{19-16} = 0b1111; // Rn
1154 let Inst{11-8} = Rd;
1155 let Inst{23} = addr{12};
1156 let Inst{21} = addr{12};
1157 let Inst{26} = addr{11};
1158 let Inst{14-12} = addr{10-8};
1159 let Inst{7-0} = addr{7-0};
1162 let neverHasSideEffects = 1, isReMaterializable = 1 in
1163 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1165 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1166 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1171 //===----------------------------------------------------------------------===//
1172 // Load / store Instructions.
1176 let canFoldAsLoad = 1, isReMaterializable = 1 in
1177 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si, GPR,
1178 UnOpFrag<(load node:$Src)>>;
1180 // Loads with zero extension
1181 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1182 rGPR, UnOpFrag<(zextloadi16 node:$Src)>>;
1183 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1184 rGPR, UnOpFrag<(zextloadi8 node:$Src)>>;
1186 // Loads with sign extension
1187 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1188 rGPR, UnOpFrag<(sextloadi16 node:$Src)>>;
1189 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1190 rGPR, UnOpFrag<(sextloadi8 node:$Src)>>;
1192 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1194 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1195 (ins t2addrmode_imm8s4:$addr),
1196 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", []>;
1197 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1199 // zextload i1 -> zextload i8
1200 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1201 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1202 def : T2Pat<(zextloadi1 t2addrmode_negimm8:$addr),
1203 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1204 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1205 (t2LDRBs t2addrmode_so_reg:$addr)>;
1206 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1207 (t2LDRBpci tconstpool:$addr)>;
1209 // extload -> zextload
1210 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1212 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1213 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1214 def : T2Pat<(extloadi1 t2addrmode_negimm8:$addr),
1215 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1216 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1217 (t2LDRBs t2addrmode_so_reg:$addr)>;
1218 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1219 (t2LDRBpci tconstpool:$addr)>;
1221 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1222 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1223 def : T2Pat<(extloadi8 t2addrmode_negimm8:$addr),
1224 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1225 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1226 (t2LDRBs t2addrmode_so_reg:$addr)>;
1227 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1228 (t2LDRBpci tconstpool:$addr)>;
1230 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1231 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1232 def : T2Pat<(extloadi16 t2addrmode_negimm8:$addr),
1233 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
1234 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1235 (t2LDRHs t2addrmode_so_reg:$addr)>;
1236 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1237 (t2LDRHpci tconstpool:$addr)>;
1239 // FIXME: The destination register of the loads and stores can't be PC, but
1240 // can be SP. We need another regclass (similar to rGPR) to represent
1241 // that. Not a pressing issue since these are selected manually,
1246 let mayLoad = 1, neverHasSideEffects = 1 in {
1247 def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1248 (ins t2addrmode_imm8:$addr),
1249 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1250 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1252 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1255 def t2LDR_POST : T2Ipostldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1256 (ins GPR:$Rn, t2am_imm8_offset:$addr),
1257 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1258 "ldr", "\t$Rt, [$Rn], $addr", "$Rn = $Rn_wb", []>;
1260 def t2LDRB_PRE : T2Ipreldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1261 (ins t2addrmode_imm8:$addr),
1262 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1263 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1265 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1267 def t2LDRB_POST : T2Ipostldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1268 (ins GPR:$Rn, t2am_imm8_offset:$addr),
1269 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1270 "ldrb", "\t$Rt, [$Rn], $addr", "$Rn = $Rn_wb", []>;
1272 def t2LDRH_PRE : T2Ipreldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1273 (ins t2addrmode_imm8:$addr),
1274 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1275 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1277 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1279 def t2LDRH_POST : T2Ipostldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1280 (ins GPR:$Rn, t2am_imm8_offset:$addr),
1281 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1282 "ldrh", "\t$Rt, [$Rn], $addr", "$Rn = $Rn_wb", []>;
1284 def t2LDRSB_PRE : T2Ipreldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1285 (ins t2addrmode_imm8:$addr),
1286 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1287 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1289 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1291 def t2LDRSB_POST : T2Ipostldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1292 (ins GPR:$Rn, t2am_imm8_offset:$addr),
1293 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1294 "ldrsb", "\t$Rt, [$Rn], $addr", "$Rn = $Rn_wb", []>;
1296 def t2LDRSH_PRE : T2Ipreldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1297 (ins t2addrmode_imm8:$addr),
1298 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1299 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1301 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1303 def t2LDRSH_POST : T2Ipostldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1304 (ins GPR:$Rn, t2am_imm8_offset:$addr),
1305 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1306 "ldrsh", "\t$Rt, [$Rn], $addr", "$Rn = $Rn_wb", []>;
1307 } // mayLoad = 1, neverHasSideEffects = 1
1309 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110).
1310 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1311 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1312 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_posimm8:$addr), ii, opc,
1313 "\t$Rt, $addr", []> {
1316 let Inst{31-27} = 0b11111;
1317 let Inst{26-25} = 0b00;
1318 let Inst{24} = signed;
1320 let Inst{22-21} = type;
1321 let Inst{20} = 1; // load
1322 let Inst{19-16} = addr{12-9};
1323 let Inst{15-12} = Rt;
1325 let Inst{10-8} = 0b110; // PUW.
1326 let Inst{7-0} = addr{7-0};
1329 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1330 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1331 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1332 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1333 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1336 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si, GPR,
1337 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1338 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1339 rGPR, BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1340 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1341 rGPR, BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1344 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1345 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1346 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1347 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
1350 def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
1351 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1352 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1353 "str", "\t$Rt, [$Rn, $addr]!",
1354 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1355 [(set GPRnopc:$Rn_wb,
1356 (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1358 def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
1359 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1360 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1361 "str", "\t$Rt, [$Rn], $addr",
1362 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1363 [(set GPRnopc:$Rn_wb,
1364 (post_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1366 def t2STRH_PRE : T2Ipreldst<0, 0b01, 0, 1, (outs GPRnopc:$Rn_wb),
1367 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1368 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1369 "strh", "\t$Rt, [$Rn, $addr]!",
1370 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1371 [(set GPRnopc:$Rn_wb,
1372 (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1374 def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb),
1375 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1376 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1377 "strh", "\t$Rt, [$Rn], $addr",
1378 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1379 [(set GPRnopc:$Rn_wb,
1380 (post_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1382 def t2STRB_PRE : T2Ipreldst<0, 0b00, 0, 1, (outs GPRnopc:$Rn_wb),
1383 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1384 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1385 "strb", "\t$Rt, [$Rn, $addr]!",
1386 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1387 [(set GPRnopc:$Rn_wb,
1388 (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1390 def t2STRB_POST : T2Ipostldst<0, 0b00, 0, 0, (outs GPRnopc:$Rn_wb),
1391 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1392 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1393 "strb", "\t$Rt, [$Rn], $addr",
1394 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1395 [(set GPRnopc:$Rn_wb,
1396 (post_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1398 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1400 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1401 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1402 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1403 "\t$Rt, $addr", []> {
1404 let Inst{31-27} = 0b11111;
1405 let Inst{26-25} = 0b00;
1406 let Inst{24} = 0; // not signed
1408 let Inst{22-21} = type;
1409 let Inst{20} = 0; // store
1411 let Inst{10-8} = 0b110; // PUW
1415 let Inst{15-12} = Rt;
1416 let Inst{19-16} = addr{12-9};
1417 let Inst{7-0} = addr{7-0};
1420 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1421 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1422 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1424 // ldrd / strd pre / post variants
1425 // For disassembly only.
1427 def t2LDRD_PRE : T2Ii8s4Tied<1, 1, 1,
1428 (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1429 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1430 "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1432 def t2LDRD_POST : T2Ii8s4Tied<0, 1, 1,
1433 (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1434 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1435 "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
1437 def t2STRD_PRE : T2Ii8s4Tied<1, 1, 0, (outs GPR:$wb),
1438 (ins rGPR:$Rt, rGPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1439 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1441 def t2STRD_POST : T2Ii8s4Tied<0, 1, 0, (outs GPR:$wb),
1442 (ins rGPR:$Rt, rGPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1443 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
1445 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1446 // data/instruction access. These are for disassembly only.
1447 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1448 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1449 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1451 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1453 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1454 let Inst{31-25} = 0b1111100;
1455 let Inst{24} = instr;
1457 let Inst{21} = write;
1459 let Inst{15-12} = 0b1111;
1462 let addr{12} = 1; // add = TRUE
1463 let Inst{19-16} = addr{16-13}; // Rn
1464 let Inst{23} = addr{12}; // U
1465 let Inst{11-0} = addr{11-0}; // imm12
1468 def i8 : T2Ii8<(outs), (ins t2addrmode_negimm8:$addr), IIC_Preload, opc,
1470 [(ARMPreload t2addrmode_negimm8:$addr, (i32 write), (i32 instr))]> {
1471 let Inst{31-25} = 0b1111100;
1472 let Inst{24} = instr;
1473 let Inst{23} = 0; // U = 0
1475 let Inst{21} = write;
1477 let Inst{15-12} = 0b1111;
1478 let Inst{11-8} = 0b1100;
1481 let Inst{19-16} = addr{12-9}; // Rn
1482 let Inst{7-0} = addr{7-0}; // imm8
1485 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1487 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1488 let Inst{31-25} = 0b1111100;
1489 let Inst{24} = instr;
1490 let Inst{23} = 0; // add = TRUE for T1
1492 let Inst{21} = write;
1494 let Inst{15-12} = 0b1111;
1495 let Inst{11-6} = 0000000;
1498 let Inst{19-16} = addr{9-6}; // Rn
1499 let Inst{3-0} = addr{5-2}; // Rm
1500 let Inst{5-4} = addr{1-0}; // imm2
1502 let DecoderMethod = "DecodeT2LoadShift";
1506 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1507 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1508 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1510 //===----------------------------------------------------------------------===//
1511 // Load / store multiple Instructions.
1514 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1515 InstrItinClass itin_upd, bit L_bit> {
1517 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1518 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1522 let Inst{31-27} = 0b11101;
1523 let Inst{26-25} = 0b00;
1524 let Inst{24-23} = 0b01; // Increment After
1526 let Inst{21} = 0; // No writeback
1527 let Inst{20} = L_bit;
1528 let Inst{19-16} = Rn;
1529 let Inst{15-0} = regs;
1532 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1533 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1537 let Inst{31-27} = 0b11101;
1538 let Inst{26-25} = 0b00;
1539 let Inst{24-23} = 0b01; // Increment After
1541 let Inst{21} = 1; // Writeback
1542 let Inst{20} = L_bit;
1543 let Inst{19-16} = Rn;
1544 let Inst{15-0} = regs;
1547 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1548 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1552 let Inst{31-27} = 0b11101;
1553 let Inst{26-25} = 0b00;
1554 let Inst{24-23} = 0b10; // Decrement Before
1556 let Inst{21} = 0; // No writeback
1557 let Inst{20} = L_bit;
1558 let Inst{19-16} = Rn;
1559 let Inst{15-0} = regs;
1562 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1563 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1567 let Inst{31-27} = 0b11101;
1568 let Inst{26-25} = 0b00;
1569 let Inst{24-23} = 0b10; // Decrement Before
1571 let Inst{21} = 1; // Writeback
1572 let Inst{20} = L_bit;
1573 let Inst{19-16} = Rn;
1574 let Inst{15-0} = regs;
1578 let neverHasSideEffects = 1 in {
1580 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1581 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1583 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1584 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1586 } // neverHasSideEffects
1589 //===----------------------------------------------------------------------===//
1590 // Move Instructions.
1593 let neverHasSideEffects = 1 in
1594 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1595 "mov", ".w\t$Rd, $Rm", []> {
1596 let Inst{31-27} = 0b11101;
1597 let Inst{26-25} = 0b01;
1598 let Inst{24-21} = 0b0010;
1599 let Inst{19-16} = 0b1111; // Rn
1600 let Inst{14-12} = 0b000;
1601 let Inst{7-4} = 0b0000;
1604 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1605 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1606 AddedComplexity = 1 in
1607 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1608 "mov", ".w\t$Rd, $imm",
1609 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1610 let Inst{31-27} = 0b11110;
1612 let Inst{24-21} = 0b0010;
1613 let Inst{19-16} = 0b1111; // Rn
1617 def : t2InstAlias<"mov${s}${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1618 pred:$p, cc_out:$s)>;
1620 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1621 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
1622 "movw", "\t$Rd, $imm",
1623 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1624 let Inst{31-27} = 0b11110;
1626 let Inst{24-21} = 0b0010;
1627 let Inst{20} = 0; // The S bit.
1633 let Inst{11-8} = Rd;
1634 let Inst{19-16} = imm{15-12};
1635 let Inst{26} = imm{11};
1636 let Inst{14-12} = imm{10-8};
1637 let Inst{7-0} = imm{7-0};
1640 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1641 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1643 let Constraints = "$src = $Rd" in {
1644 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1645 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
1646 "movt", "\t$Rd, $imm",
1648 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1649 let Inst{31-27} = 0b11110;
1651 let Inst{24-21} = 0b0110;
1652 let Inst{20} = 0; // The S bit.
1658 let Inst{11-8} = Rd;
1659 let Inst{19-16} = imm{15-12};
1660 let Inst{26} = imm{11};
1661 let Inst{14-12} = imm{10-8};
1662 let Inst{7-0} = imm{7-0};
1665 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1666 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1669 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1671 //===----------------------------------------------------------------------===//
1672 // Extend Instructions.
1677 def t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1678 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1679 def t2SXTH : T2I_ext_rrot<0b000, "sxth",
1680 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1681 def t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1683 def t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1684 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1685 def t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1686 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1687 def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
1689 // TODO: SXT(A){B|H}16
1693 let AddedComplexity = 16 in {
1694 def t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1695 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1696 def t2UXTH : T2I_ext_rrot<0b001, "uxth",
1697 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1698 def t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1699 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1701 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1702 // The transformation should probably be done as a combiner action
1703 // instead so we can include a check for masking back in the upper
1704 // eight bits of the source into the lower eight bits of the result.
1705 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1706 // (t2UXTB16 rGPR:$Src, 3)>,
1707 // Requires<[HasT2ExtractPack, IsThumb2]>;
1708 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1709 (t2UXTB16 rGPR:$Src, 1)>,
1710 Requires<[HasT2ExtractPack, IsThumb2]>;
1712 def t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1713 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1714 def t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1715 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1716 def t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">;
1719 //===----------------------------------------------------------------------===//
1720 // Arithmetic Instructions.
1723 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1724 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1725 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1726 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1728 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1729 // FIXME: Eliminate them if we can write def : Pat patterns which defines
1730 // CPSR and the implicit def of CPSR is not needed.
1731 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1732 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1733 BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>;
1734 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1735 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1736 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1738 let hasPostISelHook = 1 in {
1739 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1740 BinOpWithFlagFrag<(ARMadde node:$LHS, node:$RHS, node:$FLAG)>, 1>;
1741 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1742 BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>>;
1746 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1747 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1749 // FIXME: Eliminate them if we can write def : Pat patterns which defines
1750 // CPSR and the implicit def of CPSR is not needed.
1751 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1752 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1754 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1755 // The assume-no-carry-in form uses the negation of the input since add/sub
1756 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1757 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1759 // The AddedComplexity preferences the first variant over the others since
1760 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1761 let AddedComplexity = 1 in
1762 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1763 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1764 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1765 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1766 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1767 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1768 let AddedComplexity = 1 in
1769 def : T2Pat<(ARMaddc rGPR:$src, imm0_255_neg:$imm),
1770 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1771 def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm),
1772 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1773 // The with-carry-in form matches bitwise not instead of the negation.
1774 // Effectively, the inverse interpretation of the carry flag already accounts
1775 // for part of the negation.
1776 let AddedComplexity = 1 in
1777 def : T2Pat<(ARMadde rGPR:$src, imm0_255_not:$imm, CPSR),
1778 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
1779 def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR),
1780 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
1782 // Select Bytes -- for disassembly only
1784 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1785 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []>,
1786 Requires<[IsThumb2, HasThumb2DSP]> {
1787 let Inst{31-27} = 0b11111;
1788 let Inst{26-24} = 0b010;
1790 let Inst{22-20} = 0b010;
1791 let Inst{15-12} = 0b1111;
1793 let Inst{6-4} = 0b000;
1796 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1797 // And Miscellaneous operations -- for disassembly only
1798 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1799 list<dag> pat = [/* For disassembly only; pattern left blank */],
1800 dag iops = (ins rGPR:$Rn, rGPR:$Rm),
1801 string asm = "\t$Rd, $Rn, $Rm">
1802 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
1803 Requires<[IsThumb2, HasThumb2DSP]> {
1804 let Inst{31-27} = 0b11111;
1805 let Inst{26-23} = 0b0101;
1806 let Inst{22-20} = op22_20;
1807 let Inst{15-12} = 0b1111;
1808 let Inst{7-4} = op7_4;
1814 let Inst{11-8} = Rd;
1815 let Inst{19-16} = Rn;
1819 // Saturating add/subtract -- for disassembly only
1821 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1822 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))],
1823 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1824 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1825 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1826 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1827 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [],
1828 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1829 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [],
1830 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1831 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1832 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1833 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))],
1834 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1835 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1836 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1837 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1838 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1839 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1840 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1841 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1842 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1844 // Signed/Unsigned add/subtract -- for disassembly only
1846 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1847 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1848 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1849 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1850 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1851 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1852 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1853 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1854 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1855 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1856 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1857 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1859 // Signed/Unsigned halving add/subtract -- for disassembly only
1861 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1862 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1863 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1864 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1865 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1866 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1867 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1868 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1869 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1870 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1871 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1872 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1874 // Helper class for disassembly only
1875 // A6.3.16 & A6.3.17
1876 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1877 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1878 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1879 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1880 let Inst{31-27} = 0b11111;
1881 let Inst{26-24} = 0b011;
1882 let Inst{23} = long;
1883 let Inst{22-20} = op22_20;
1884 let Inst{7-4} = op7_4;
1887 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1888 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1889 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1890 let Inst{31-27} = 0b11111;
1891 let Inst{26-24} = 0b011;
1892 let Inst{23} = long;
1893 let Inst{22-20} = op22_20;
1894 let Inst{7-4} = op7_4;
1897 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1899 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1900 (ins rGPR:$Rn, rGPR:$Rm),
1901 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>,
1902 Requires<[IsThumb2, HasThumb2DSP]> {
1903 let Inst{15-12} = 0b1111;
1905 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1906 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1907 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>,
1908 Requires<[IsThumb2, HasThumb2DSP]>;
1910 // Signed/Unsigned saturate -- for disassembly only
1912 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1913 string opc, string asm, list<dag> pattern>
1914 : T2I<oops, iops, itin, opc, asm, pattern> {
1920 let Inst{11-8} = Rd;
1921 let Inst{19-16} = Rn;
1922 let Inst{4-0} = sat_imm;
1923 let Inst{21} = sh{5};
1924 let Inst{14-12} = sh{4-2};
1925 let Inst{7-6} = sh{1-0};
1929 (outs rGPR:$Rd), (ins imm1_32:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1930 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1931 [/* For disassembly only; pattern left blank */]> {
1932 let Inst{31-27} = 0b11110;
1933 let Inst{25-22} = 0b1100;
1938 def t2SSAT16: T2SatI<
1939 (outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary,
1940 "ssat16", "\t$Rd, $sat_imm, $Rn",
1941 [/* For disassembly only; pattern left blank */]>,
1942 Requires<[IsThumb2, HasThumb2DSP]> {
1943 let Inst{31-27} = 0b11110;
1944 let Inst{25-22} = 0b1100;
1947 let Inst{21} = 1; // sh = '1'
1948 let Inst{14-12} = 0b000; // imm3 = '000'
1949 let Inst{7-6} = 0b00; // imm2 = '00'
1953 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1954 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
1955 [/* For disassembly only; pattern left blank */]> {
1956 let Inst{31-27} = 0b11110;
1957 let Inst{25-22} = 0b1110;
1962 def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn),
1964 "usat16", "\t$Rd, $sat_imm, $Rn",
1965 [/* For disassembly only; pattern left blank */]>,
1966 Requires<[IsThumb2, HasThumb2DSP]> {
1967 let Inst{31-27} = 0b11110;
1968 let Inst{25-22} = 0b1110;
1971 let Inst{21} = 1; // sh = '1'
1972 let Inst{14-12} = 0b000; // imm3 = '000'
1973 let Inst{7-6} = 0b00; // imm2 = '00'
1976 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
1977 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
1979 //===----------------------------------------------------------------------===//
1980 // Shift and rotate Instructions.
1983 defm t2LSL : T2I_sh_ir<0b00, "lsl", imm0_31,
1984 BinOpFrag<(shl node:$LHS, node:$RHS)>, "t2LSL">;
1985 defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr,
1986 BinOpFrag<(srl node:$LHS, node:$RHS)>, "t2LSR">;
1987 defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr,
1988 BinOpFrag<(sra node:$LHS, node:$RHS)>, "t2ASR">;
1989 defm t2ROR : T2I_sh_ir<0b11, "ror", imm0_31,
1990 BinOpFrag<(rotr node:$LHS, node:$RHS)>, "t2ROR">;
1992 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
1993 def : Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
1994 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
1996 let Uses = [CPSR] in {
1997 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
1998 "rrx", "\t$Rd, $Rm",
1999 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2000 let Inst{31-27} = 0b11101;
2001 let Inst{26-25} = 0b01;
2002 let Inst{24-21} = 0b0010;
2003 let Inst{19-16} = 0b1111; // Rn
2004 let Inst{14-12} = 0b000;
2005 let Inst{7-4} = 0b0011;
2009 let isCodeGenOnly = 1, Defs = [CPSR] in {
2010 def t2MOVsrl_flag : T2TwoRegShiftImm<
2011 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2012 "lsrs", ".w\t$Rd, $Rm, #1",
2013 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2014 let Inst{31-27} = 0b11101;
2015 let Inst{26-25} = 0b01;
2016 let Inst{24-21} = 0b0010;
2017 let Inst{20} = 1; // The S bit.
2018 let Inst{19-16} = 0b1111; // Rn
2019 let Inst{5-4} = 0b01; // Shift type.
2020 // Shift amount = Inst{14-12:7-6} = 1.
2021 let Inst{14-12} = 0b000;
2022 let Inst{7-6} = 0b01;
2024 def t2MOVsra_flag : T2TwoRegShiftImm<
2025 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2026 "asrs", ".w\t$Rd, $Rm, #1",
2027 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2028 let Inst{31-27} = 0b11101;
2029 let Inst{26-25} = 0b01;
2030 let Inst{24-21} = 0b0010;
2031 let Inst{20} = 1; // The S bit.
2032 let Inst{19-16} = 0b1111; // Rn
2033 let Inst{5-4} = 0b10; // Shift type.
2034 // Shift amount = Inst{14-12:7-6} = 1.
2035 let Inst{14-12} = 0b000;
2036 let Inst{7-6} = 0b01;
2040 //===----------------------------------------------------------------------===//
2041 // Bitwise Instructions.
2044 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2045 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2046 BinOpFrag<(and node:$LHS, node:$RHS)>, "t2AND", 1>;
2047 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2048 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2049 BinOpFrag<(or node:$LHS, node:$RHS)>, "t2ORR", 1>;
2050 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2051 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2052 BinOpFrag<(xor node:$LHS, node:$RHS)>, "t2EOR", 1>;
2054 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2055 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2056 BinOpFrag<(and node:$LHS, (not node:$RHS))>,
2059 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2060 string opc, string asm, list<dag> pattern>
2061 : T2I<oops, iops, itin, opc, asm, pattern> {
2066 let Inst{11-8} = Rd;
2067 let Inst{4-0} = msb{4-0};
2068 let Inst{14-12} = lsb{4-2};
2069 let Inst{7-6} = lsb{1-0};
2072 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2073 string opc, string asm, list<dag> pattern>
2074 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2077 let Inst{19-16} = Rn;
2080 let Constraints = "$src = $Rd" in
2081 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2082 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2083 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2084 let Inst{31-27} = 0b11110;
2085 let Inst{26} = 0; // should be 0.
2087 let Inst{24-20} = 0b10110;
2088 let Inst{19-16} = 0b1111; // Rn
2090 let Inst{5} = 0; // should be 0.
2093 let msb{4-0} = imm{9-5};
2094 let lsb{4-0} = imm{4-0};
2097 def t2SBFX: T2TwoRegBitFI<
2098 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2099 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2100 let Inst{31-27} = 0b11110;
2102 let Inst{24-20} = 0b10100;
2106 def t2UBFX: T2TwoRegBitFI<
2107 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2108 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2109 let Inst{31-27} = 0b11110;
2111 let Inst{24-20} = 0b11100;
2115 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2116 let Constraints = "$src = $Rd" in {
2117 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2118 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2119 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2120 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2121 bf_inv_mask_imm:$imm))]> {
2122 let Inst{31-27} = 0b11110;
2123 let Inst{26} = 0; // should be 0.
2125 let Inst{24-20} = 0b10110;
2127 let Inst{5} = 0; // should be 0.
2130 let msb{4-0} = imm{9-5};
2131 let lsb{4-0} = imm{4-0};
2134 // GNU as only supports this form of bfi (w/ 4 arguments)
2135 let isAsmParserOnly = 1 in
2136 def t2BFI4p : T2TwoRegBitFI<(outs rGPR:$Rd),
2137 (ins rGPR:$src, rGPR:$Rn, lsb_pos_imm:$lsbit,
2139 IIC_iBITi, "bfi", "\t$Rd, $Rn, $lsbit, $width",
2141 let Inst{31-27} = 0b11110;
2142 let Inst{26} = 0; // should be 0.
2144 let Inst{24-20} = 0b10110;
2146 let Inst{5} = 0; // should be 0.
2150 let msb{4-0} = width; // Custom encoder => lsb+width-1
2151 let lsb{4-0} = lsbit;
2155 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2156 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2157 BinOpFrag<(or node:$LHS, (not node:$RHS))>,
2160 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2161 let AddedComplexity = 1 in
2162 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2163 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2164 UnOpFrag<(not node:$Src)>, 1, 1>;
2167 let AddedComplexity = 1 in
2168 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2169 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2171 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2172 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2173 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2174 Requires<[IsThumb2]>;
2176 def : T2Pat<(t2_so_imm_not:$src),
2177 (t2MVNi t2_so_imm_not:$src)>;
2179 //===----------------------------------------------------------------------===//
2180 // Multiply Instructions.
2182 let isCommutable = 1 in
2183 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2184 "mul", "\t$Rd, $Rn, $Rm",
2185 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2186 let Inst{31-27} = 0b11111;
2187 let Inst{26-23} = 0b0110;
2188 let Inst{22-20} = 0b000;
2189 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2190 let Inst{7-4} = 0b0000; // Multiply
2193 def t2MLA: T2FourReg<
2194 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2195 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2196 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2197 let Inst{31-27} = 0b11111;
2198 let Inst{26-23} = 0b0110;
2199 let Inst{22-20} = 0b000;
2200 let Inst{7-4} = 0b0000; // Multiply
2203 def t2MLS: T2FourReg<
2204 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2205 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2206 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2207 let Inst{31-27} = 0b11111;
2208 let Inst{26-23} = 0b0110;
2209 let Inst{22-20} = 0b000;
2210 let Inst{7-4} = 0b0001; // Multiply and Subtract
2213 // Extra precision multiplies with low / high results
2214 let neverHasSideEffects = 1 in {
2215 let isCommutable = 1 in {
2216 def t2SMULL : T2MulLong<0b000, 0b0000,
2217 (outs rGPR:$RdLo, rGPR:$RdHi),
2218 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2219 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2221 def t2UMULL : T2MulLong<0b010, 0b0000,
2222 (outs rGPR:$RdLo, rGPR:$RdHi),
2223 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2224 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2227 // Multiply + accumulate
2228 def t2SMLAL : T2MulLong<0b100, 0b0000,
2229 (outs rGPR:$RdLo, rGPR:$RdHi),
2230 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2231 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2233 def t2UMLAL : T2MulLong<0b110, 0b0000,
2234 (outs rGPR:$RdLo, rGPR:$RdHi),
2235 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2236 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2238 def t2UMAAL : T2MulLong<0b110, 0b0110,
2239 (outs rGPR:$RdLo, rGPR:$RdHi),
2240 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2241 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2242 Requires<[IsThumb2, HasThumb2DSP]>;
2243 } // neverHasSideEffects
2245 // Rounding variants of the below included for disassembly only
2247 // Most significant word multiply
2248 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2249 "smmul", "\t$Rd, $Rn, $Rm",
2250 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]>,
2251 Requires<[IsThumb2, HasThumb2DSP]> {
2252 let Inst{31-27} = 0b11111;
2253 let Inst{26-23} = 0b0110;
2254 let Inst{22-20} = 0b101;
2255 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2256 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2259 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2260 "smmulr", "\t$Rd, $Rn, $Rm", []>,
2261 Requires<[IsThumb2, HasThumb2DSP]> {
2262 let Inst{31-27} = 0b11111;
2263 let Inst{26-23} = 0b0110;
2264 let Inst{22-20} = 0b101;
2265 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2266 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2269 def t2SMMLA : T2FourReg<
2270 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2271 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2272 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>,
2273 Requires<[IsThumb2, HasThumb2DSP]> {
2274 let Inst{31-27} = 0b11111;
2275 let Inst{26-23} = 0b0110;
2276 let Inst{22-20} = 0b101;
2277 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2280 def t2SMMLAR: T2FourReg<
2281 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2282 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
2283 Requires<[IsThumb2, HasThumb2DSP]> {
2284 let Inst{31-27} = 0b11111;
2285 let Inst{26-23} = 0b0110;
2286 let Inst{22-20} = 0b101;
2287 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2290 def t2SMMLS: T2FourReg<
2291 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2292 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2293 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>,
2294 Requires<[IsThumb2, HasThumb2DSP]> {
2295 let Inst{31-27} = 0b11111;
2296 let Inst{26-23} = 0b0110;
2297 let Inst{22-20} = 0b110;
2298 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2301 def t2SMMLSR:T2FourReg<
2302 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2303 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
2304 Requires<[IsThumb2, HasThumb2DSP]> {
2305 let Inst{31-27} = 0b11111;
2306 let Inst{26-23} = 0b0110;
2307 let Inst{22-20} = 0b110;
2308 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2311 multiclass T2I_smul<string opc, PatFrag opnode> {
2312 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2313 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2314 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2315 (sext_inreg rGPR:$Rm, i16)))]>,
2316 Requires<[IsThumb2, HasThumb2DSP]> {
2317 let Inst{31-27} = 0b11111;
2318 let Inst{26-23} = 0b0110;
2319 let Inst{22-20} = 0b001;
2320 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2321 let Inst{7-6} = 0b00;
2322 let Inst{5-4} = 0b00;
2325 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2326 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2327 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2328 (sra rGPR:$Rm, (i32 16))))]>,
2329 Requires<[IsThumb2, HasThumb2DSP]> {
2330 let Inst{31-27} = 0b11111;
2331 let Inst{26-23} = 0b0110;
2332 let Inst{22-20} = 0b001;
2333 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2334 let Inst{7-6} = 0b00;
2335 let Inst{5-4} = 0b01;
2338 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2339 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2340 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2341 (sext_inreg rGPR:$Rm, i16)))]>,
2342 Requires<[IsThumb2, HasThumb2DSP]> {
2343 let Inst{31-27} = 0b11111;
2344 let Inst{26-23} = 0b0110;
2345 let Inst{22-20} = 0b001;
2346 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2347 let Inst{7-6} = 0b00;
2348 let Inst{5-4} = 0b10;
2351 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2352 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2353 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2354 (sra rGPR:$Rm, (i32 16))))]>,
2355 Requires<[IsThumb2, HasThumb2DSP]> {
2356 let Inst{31-27} = 0b11111;
2357 let Inst{26-23} = 0b0110;
2358 let Inst{22-20} = 0b001;
2359 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2360 let Inst{7-6} = 0b00;
2361 let Inst{5-4} = 0b11;
2364 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2365 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2366 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2367 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]>,
2368 Requires<[IsThumb2, HasThumb2DSP]> {
2369 let Inst{31-27} = 0b11111;
2370 let Inst{26-23} = 0b0110;
2371 let Inst{22-20} = 0b011;
2372 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2373 let Inst{7-6} = 0b00;
2374 let Inst{5-4} = 0b00;
2377 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2378 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2379 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2380 (sra rGPR:$Rm, (i32 16))), (i32 16)))]>,
2381 Requires<[IsThumb2, HasThumb2DSP]> {
2382 let Inst{31-27} = 0b11111;
2383 let Inst{26-23} = 0b0110;
2384 let Inst{22-20} = 0b011;
2385 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2386 let Inst{7-6} = 0b00;
2387 let Inst{5-4} = 0b01;
2392 multiclass T2I_smla<string opc, PatFrag opnode> {
2394 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2395 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2396 [(set rGPR:$Rd, (add rGPR:$Ra,
2397 (opnode (sext_inreg rGPR:$Rn, i16),
2398 (sext_inreg rGPR:$Rm, i16))))]>,
2399 Requires<[IsThumb2, HasThumb2DSP]> {
2400 let Inst{31-27} = 0b11111;
2401 let Inst{26-23} = 0b0110;
2402 let Inst{22-20} = 0b001;
2403 let Inst{7-6} = 0b00;
2404 let Inst{5-4} = 0b00;
2408 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2409 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2410 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2411 (sra rGPR:$Rm, (i32 16)))))]>,
2412 Requires<[IsThumb2, HasThumb2DSP]> {
2413 let Inst{31-27} = 0b11111;
2414 let Inst{26-23} = 0b0110;
2415 let Inst{22-20} = 0b001;
2416 let Inst{7-6} = 0b00;
2417 let Inst{5-4} = 0b01;
2421 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2422 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2423 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2424 (sext_inreg rGPR:$Rm, i16))))]>,
2425 Requires<[IsThumb2, HasThumb2DSP]> {
2426 let Inst{31-27} = 0b11111;
2427 let Inst{26-23} = 0b0110;
2428 let Inst{22-20} = 0b001;
2429 let Inst{7-6} = 0b00;
2430 let Inst{5-4} = 0b10;
2434 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2435 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2436 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2437 (sra rGPR:$Rm, (i32 16)))))]>,
2438 Requires<[IsThumb2, HasThumb2DSP]> {
2439 let Inst{31-27} = 0b11111;
2440 let Inst{26-23} = 0b0110;
2441 let Inst{22-20} = 0b001;
2442 let Inst{7-6} = 0b00;
2443 let Inst{5-4} = 0b11;
2447 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2448 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2449 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2450 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]>,
2451 Requires<[IsThumb2, HasThumb2DSP]> {
2452 let Inst{31-27} = 0b11111;
2453 let Inst{26-23} = 0b0110;
2454 let Inst{22-20} = 0b011;
2455 let Inst{7-6} = 0b00;
2456 let Inst{5-4} = 0b00;
2460 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2461 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2462 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2463 (sra rGPR:$Rm, (i32 16))), (i32 16))))]>,
2464 Requires<[IsThumb2, HasThumb2DSP]> {
2465 let Inst{31-27} = 0b11111;
2466 let Inst{26-23} = 0b0110;
2467 let Inst{22-20} = 0b011;
2468 let Inst{7-6} = 0b00;
2469 let Inst{5-4} = 0b01;
2473 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2474 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2476 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2477 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2478 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2479 [/* For disassembly only; pattern left blank */]>,
2480 Requires<[IsThumb2, HasThumb2DSP]>;
2481 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2482 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2483 [/* For disassembly only; pattern left blank */]>,
2484 Requires<[IsThumb2, HasThumb2DSP]>;
2485 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2486 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2487 [/* For disassembly only; pattern left blank */]>,
2488 Requires<[IsThumb2, HasThumb2DSP]>;
2489 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2490 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2491 [/* For disassembly only; pattern left blank */]>,
2492 Requires<[IsThumb2, HasThumb2DSP]>;
2494 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2495 // These are for disassembly only.
2497 def t2SMUAD: T2ThreeReg_mac<
2498 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2499 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>,
2500 Requires<[IsThumb2, HasThumb2DSP]> {
2501 let Inst{15-12} = 0b1111;
2503 def t2SMUADX:T2ThreeReg_mac<
2504 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2505 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []>,
2506 Requires<[IsThumb2, HasThumb2DSP]> {
2507 let Inst{15-12} = 0b1111;
2509 def t2SMUSD: T2ThreeReg_mac<
2510 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2511 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []>,
2512 Requires<[IsThumb2, HasThumb2DSP]> {
2513 let Inst{15-12} = 0b1111;
2515 def t2SMUSDX:T2ThreeReg_mac<
2516 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2517 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []>,
2518 Requires<[IsThumb2, HasThumb2DSP]> {
2519 let Inst{15-12} = 0b1111;
2521 def t2SMLAD : T2FourReg_mac<
2522 0, 0b010, 0b0000, (outs rGPR:$Rd),
2523 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2524 "\t$Rd, $Rn, $Rm, $Ra", []>,
2525 Requires<[IsThumb2, HasThumb2DSP]>;
2526 def t2SMLADX : T2FourReg_mac<
2527 0, 0b010, 0b0001, (outs rGPR:$Rd),
2528 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2529 "\t$Rd, $Rn, $Rm, $Ra", []>,
2530 Requires<[IsThumb2, HasThumb2DSP]>;
2531 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2532 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2533 "\t$Rd, $Rn, $Rm, $Ra", []>,
2534 Requires<[IsThumb2, HasThumb2DSP]>;
2535 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2536 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2537 "\t$Rd, $Rn, $Rm, $Ra", []>,
2538 Requires<[IsThumb2, HasThumb2DSP]>;
2539 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2540 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2541 "\t$Ra, $Rd, $Rm, $Rn", []>,
2542 Requires<[IsThumb2, HasThumb2DSP]>;
2543 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2544 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2545 "\t$Ra, $Rd, $Rm, $Rn", []>,
2546 Requires<[IsThumb2, HasThumb2DSP]>;
2547 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2548 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2549 "\t$Ra, $Rd, $Rm, $Rn", []>,
2550 Requires<[IsThumb2, HasThumb2DSP]>;
2551 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2552 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2553 "\t$Ra, $Rd, $Rm, $Rn", []>,
2554 Requires<[IsThumb2, HasThumb2DSP]>;
2556 //===----------------------------------------------------------------------===//
2557 // Division Instructions.
2558 // Signed and unsigned division on v7-M
2560 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2561 "sdiv", "\t$Rd, $Rn, $Rm",
2562 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
2563 Requires<[HasDivide, IsThumb2]> {
2564 let Inst{31-27} = 0b11111;
2565 let Inst{26-21} = 0b011100;
2567 let Inst{15-12} = 0b1111;
2568 let Inst{7-4} = 0b1111;
2571 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2572 "udiv", "\t$Rd, $Rn, $Rm",
2573 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
2574 Requires<[HasDivide, IsThumb2]> {
2575 let Inst{31-27} = 0b11111;
2576 let Inst{26-21} = 0b011101;
2578 let Inst{15-12} = 0b1111;
2579 let Inst{7-4} = 0b1111;
2582 //===----------------------------------------------------------------------===//
2583 // Misc. Arithmetic Instructions.
2586 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2587 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2588 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2589 let Inst{31-27} = 0b11111;
2590 let Inst{26-22} = 0b01010;
2591 let Inst{21-20} = op1;
2592 let Inst{15-12} = 0b1111;
2593 let Inst{7-6} = 0b10;
2594 let Inst{5-4} = op2;
2598 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2599 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2601 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2602 "rbit", "\t$Rd, $Rm",
2603 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2605 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2606 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2608 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2609 "rev16", ".w\t$Rd, $Rm",
2610 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>;
2612 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2613 "revsh", ".w\t$Rd, $Rm",
2614 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>;
2616 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
2617 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
2618 (t2REVSH rGPR:$Rm)>;
2620 def t2PKHBT : T2ThreeReg<
2621 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
2622 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm, lsl $sh",
2623 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2624 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
2626 Requires<[HasT2ExtractPack, IsThumb2]> {
2627 let Inst{31-27} = 0b11101;
2628 let Inst{26-25} = 0b01;
2629 let Inst{24-20} = 0b01100;
2630 let Inst{5} = 0; // BT form
2634 let Inst{14-12} = sh{4-2};
2635 let Inst{7-6} = sh{1-0};
2638 // Alternate cases for PKHBT where identities eliminate some nodes.
2639 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2640 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2641 Requires<[HasT2ExtractPack, IsThumb2]>;
2642 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2643 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2644 Requires<[HasT2ExtractPack, IsThumb2]>;
2646 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2647 // will match the pattern below.
2648 def t2PKHTB : T2ThreeReg<
2649 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
2650 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm, asr $sh",
2651 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2652 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
2654 Requires<[HasT2ExtractPack, IsThumb2]> {
2655 let Inst{31-27} = 0b11101;
2656 let Inst{26-25} = 0b01;
2657 let Inst{24-20} = 0b01100;
2658 let Inst{5} = 1; // TB form
2662 let Inst{14-12} = sh{4-2};
2663 let Inst{7-6} = sh{1-0};
2666 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2667 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2668 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2669 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2670 Requires<[HasT2ExtractPack, IsThumb2]>;
2671 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2672 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2673 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
2674 Requires<[HasT2ExtractPack, IsThumb2]>;
2676 //===----------------------------------------------------------------------===//
2677 // Comparison Instructions...
2679 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2680 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2681 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>, "t2CMP">;
2683 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm),
2684 (t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>;
2685 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, rGPR:$rhs),
2686 (t2CMPrr GPRnopc:$lhs, rGPR:$rhs)>;
2687 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg:$rhs),
2688 (t2CMPrs GPRnopc:$lhs, t2_so_reg:$rhs)>;
2690 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2691 // Compare-to-zero still works out, just not the relationals
2692 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2693 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2694 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2695 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2696 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>,
2699 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2700 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2702 def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
2703 (t2CMNzri GPRnopc:$src, t2_so_imm_neg:$imm)>;
2705 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2706 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2707 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>,
2709 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2710 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2711 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>,
2714 // Conditional moves
2715 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2716 // a two-value operand where a dag node expects two operands. :(
2717 let neverHasSideEffects = 1 in {
2718 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
2719 (ins rGPR:$false, rGPR:$Rm, pred:$p),
2721 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2722 RegConstraint<"$false = $Rd">;
2724 let isMoveImm = 1 in
2725 def t2MOVCCi : t2PseudoInst<(outs rGPR:$Rd),
2726 (ins rGPR:$false, t2_so_imm:$imm, pred:$p),
2728 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2729 RegConstraint<"$false = $Rd">;
2731 // FIXME: Pseudo-ize these. For now, just mark codegen only.
2732 let isCodeGenOnly = 1 in {
2733 let isMoveImm = 1 in
2734 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, imm0_65535_expr:$imm),
2736 "movw", "\t$Rd, $imm", []>,
2737 RegConstraint<"$false = $Rd"> {
2738 let Inst{31-27} = 0b11110;
2740 let Inst{24-21} = 0b0010;
2741 let Inst{20} = 0; // The S bit.
2747 let Inst{11-8} = Rd;
2748 let Inst{19-16} = imm{15-12};
2749 let Inst{26} = imm{11};
2750 let Inst{14-12} = imm{10-8};
2751 let Inst{7-0} = imm{7-0};
2754 let isMoveImm = 1 in
2755 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2756 (ins rGPR:$false, i32imm:$src, pred:$p),
2757 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2759 let isMoveImm = 1 in
2760 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2761 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2762 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2763 imm:$cc, CCR:$ccr))*/]>,
2764 RegConstraint<"$false = $Rd"> {
2765 let Inst{31-27} = 0b11110;
2767 let Inst{24-21} = 0b0011;
2768 let Inst{20} = 0; // The S bit.
2769 let Inst{19-16} = 0b1111; // Rn
2773 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2774 string opc, string asm, list<dag> pattern>
2775 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2776 let Inst{31-27} = 0b11101;
2777 let Inst{26-25} = 0b01;
2778 let Inst{24-21} = 0b0010;
2779 let Inst{20} = 0; // The S bit.
2780 let Inst{19-16} = 0b1111; // Rn
2781 let Inst{5-4} = opcod; // Shift type.
2783 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2784 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2785 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2786 RegConstraint<"$false = $Rd">;
2787 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2788 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2789 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2790 RegConstraint<"$false = $Rd">;
2791 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2792 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2793 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2794 RegConstraint<"$false = $Rd">;
2795 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2796 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2797 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2798 RegConstraint<"$false = $Rd">;
2799 } // isCodeGenOnly = 1
2800 } // neverHasSideEffects
2802 //===----------------------------------------------------------------------===//
2803 // Atomic operations intrinsics
2806 // memory barriers protect the atomic sequences
2807 let hasSideEffects = 1 in {
2808 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2809 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2810 Requires<[IsThumb, HasDB]> {
2812 let Inst{31-4} = 0xf3bf8f5;
2813 let Inst{3-0} = opt;
2817 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2818 "dsb", "\t$opt", []>,
2819 Requires<[IsThumb, HasDB]> {
2821 let Inst{31-4} = 0xf3bf8f4;
2822 let Inst{3-0} = opt;
2825 def t2ISB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2827 []>, Requires<[IsThumb2, HasDB]> {
2829 let Inst{31-4} = 0xf3bf8f6;
2830 let Inst{3-0} = opt;
2833 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
2834 InstrItinClass itin, string opc, string asm, string cstr,
2835 list<dag> pattern, bits<4> rt2 = 0b1111>
2836 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2837 let Inst{31-27} = 0b11101;
2838 let Inst{26-20} = 0b0001101;
2839 let Inst{11-8} = rt2;
2840 let Inst{7-6} = 0b01;
2841 let Inst{5-4} = opcod;
2842 let Inst{3-0} = 0b1111;
2846 let Inst{19-16} = addr;
2847 let Inst{15-12} = Rt;
2849 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
2850 InstrItinClass itin, string opc, string asm, string cstr,
2851 list<dag> pattern, bits<4> rt2 = 0b1111>
2852 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2853 let Inst{31-27} = 0b11101;
2854 let Inst{26-20} = 0b0001100;
2855 let Inst{11-8} = rt2;
2856 let Inst{7-6} = 0b01;
2857 let Inst{5-4} = opcod;
2863 let Inst{19-16} = addr;
2864 let Inst{15-12} = Rt;
2867 let mayLoad = 1 in {
2868 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2869 AddrModeNone, 4, NoItinerary,
2870 "ldrexb", "\t$Rt, $addr", "", []>;
2871 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2872 AddrModeNone, 4, NoItinerary,
2873 "ldrexh", "\t$Rt, $addr", "", []>;
2874 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2875 AddrModeNone, 4, NoItinerary,
2876 "ldrex", "\t$Rt, $addr", "", []> {
2877 let Inst{31-27} = 0b11101;
2878 let Inst{26-20} = 0b0000101;
2879 let Inst{11-8} = 0b1111;
2880 let Inst{7-0} = 0b00000000; // imm8 = 0
2884 let Inst{19-16} = addr;
2885 let Inst{15-12} = Rt;
2887 let hasExtraDefRegAllocReq = 1 in
2888 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
2889 (ins t2addrmode_reg:$addr),
2890 AddrModeNone, 4, NoItinerary,
2891 "ldrexd", "\t$Rt, $Rt2, $addr", "",
2894 let Inst{11-8} = Rt2;
2898 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2899 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
2900 (ins rGPR:$Rt, t2addrmode_reg:$addr),
2901 AddrModeNone, 4, NoItinerary,
2902 "strexb", "\t$Rd, $Rt, $addr", "", []>;
2903 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
2904 (ins rGPR:$Rt, t2addrmode_reg:$addr),
2905 AddrModeNone, 4, NoItinerary,
2906 "strexh", "\t$Rd, $Rt, $addr", "", []>;
2907 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, t2addrmode_reg:$addr),
2908 AddrModeNone, 4, NoItinerary,
2909 "strex", "\t$Rd, $Rt, $addr", "",
2911 let Inst{31-27} = 0b11101;
2912 let Inst{26-20} = 0b0000100;
2913 let Inst{7-0} = 0b00000000; // imm8 = 0
2918 let Inst{11-8} = Rd;
2919 let Inst{19-16} = addr;
2920 let Inst{15-12} = Rt;
2924 let hasExtraSrcRegAllocReq = 1, Constraints = "@earlyclobber $Rd" in
2925 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2926 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_reg:$addr),
2927 AddrModeNone, 4, NoItinerary,
2928 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
2931 let Inst{11-8} = Rt2;
2934 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", []>,
2935 Requires<[IsThumb2, HasV7]> {
2936 let Inst{31-16} = 0xf3bf;
2937 let Inst{15-14} = 0b10;
2940 let Inst{11-8} = 0b1111;
2941 let Inst{7-4} = 0b0010;
2942 let Inst{3-0} = 0b1111;
2945 //===----------------------------------------------------------------------===//
2946 // SJLJ Exception handling intrinsics
2947 // eh_sjlj_setjmp() is an instruction sequence to store the return
2948 // address and save #0 in R0 for the non-longjmp case.
2949 // Since by its nature we may be coming from some other function to get
2950 // here, and we're using the stack frame for the containing function to
2951 // save/restore registers, we can't keep anything live in regs across
2952 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2953 // when we get here from a longjmp(). We force everything out of registers
2954 // except for our own input by listing the relevant registers in Defs. By
2955 // doing so, we also cause the prologue/epilogue code to actively preserve
2956 // all of the callee-saved resgisters, which is exactly what we want.
2957 // $val is a scratch register for our use.
2959 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
2960 QQQQ0, QQQQ1, QQQQ2, QQQQ3 ],
2961 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2962 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2963 AddrModeNone, 0, NoItinerary, "", "",
2964 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2965 Requires<[IsThumb2, HasVFP2]>;
2969 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
2970 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2971 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2972 AddrModeNone, 0, NoItinerary, "", "",
2973 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2974 Requires<[IsThumb2, NoVFP]>;
2978 //===----------------------------------------------------------------------===//
2979 // Control-Flow Instructions
2982 // FIXME: remove when we have a way to marking a MI with these properties.
2983 // FIXME: Should pc be an implicit operand like PICADD, etc?
2984 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2985 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2986 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2987 reglist:$regs, variable_ops),
2988 4, IIC_iLoad_mBr, [],
2989 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
2990 RegConstraint<"$Rn = $wb">;
2992 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2993 let isPredicable = 1 in
2994 def t2B : T2XI<(outs), (ins uncondbrtarget:$target), IIC_Br,
2996 [(br bb:$target)]> {
2997 let Inst{31-27} = 0b11110;
2998 let Inst{15-14} = 0b10;
3002 let Inst{26} = target{19};
3003 let Inst{11} = target{18};
3004 let Inst{13} = target{17};
3005 let Inst{21-16} = target{16-11};
3006 let Inst{10-0} = target{10-0};
3009 let isNotDuplicable = 1, isIndirectBranch = 1 in {
3010 def t2BR_JT : t2PseudoInst<(outs),
3011 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3013 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
3015 // FIXME: Add a non-pc based case that can be predicated.
3016 def t2TBB_JT : t2PseudoInst<(outs),
3017 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3020 def t2TBH_JT : t2PseudoInst<(outs),
3021 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3024 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3025 "tbb", "\t[$Rn, $Rm]", []> {
3028 let Inst{31-20} = 0b111010001101;
3029 let Inst{19-16} = Rn;
3030 let Inst{15-5} = 0b11110000000;
3031 let Inst{4} = 0; // B form
3035 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3036 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3039 let Inst{31-20} = 0b111010001101;
3040 let Inst{19-16} = Rn;
3041 let Inst{15-5} = 0b11110000000;
3042 let Inst{4} = 1; // H form
3045 } // isNotDuplicable, isIndirectBranch
3047 } // isBranch, isTerminator, isBarrier
3049 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3050 // a two-value operand where a dag node expects two operands. :(
3051 let isBranch = 1, isTerminator = 1 in
3052 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3054 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3055 let Inst{31-27} = 0b11110;
3056 let Inst{15-14} = 0b10;
3060 let Inst{25-22} = p;
3063 let Inst{26} = target{20};
3064 let Inst{11} = target{19};
3065 let Inst{13} = target{18};
3066 let Inst{21-16} = target{17-12};
3067 let Inst{10-0} = target{11-1};
3069 let DecoderMethod = "DecodeThumb2BCCInstruction";
3072 // Tail calls. The Darwin version of thumb tail calls uses a t2 branch, so
3074 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3076 let Defs = [R0, R1, R2, R3, R9, R12, QQQQ0, QQQQ2, QQQQ3, PC],
3078 def tTAILJMPd: tPseudoExpand<(outs), (ins uncondbrtarget:$dst, variable_ops),
3080 (t2B uncondbrtarget:$dst)>,
3081 Requires<[IsThumb2, IsDarwin]>;
3085 let Defs = [ITSTATE] in
3086 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3087 AddrModeNone, 2, IIC_iALUx,
3088 "it$mask\t$cc", "", []> {
3089 // 16-bit instruction.
3090 let Inst{31-16} = 0x0000;
3091 let Inst{15-8} = 0b10111111;
3096 let Inst{3-0} = mask;
3098 let DecoderMethod = "DecodeIT";
3101 // Branch and Exchange Jazelle -- for disassembly only
3103 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func", []> {
3105 let Inst{31-27} = 0b11110;
3107 let Inst{25-20} = 0b111100;
3108 let Inst{19-16} = func;
3109 let Inst{15-0} = 0b1000111100000000;
3112 // Compare and branch on zero / non-zero
3113 let isBranch = 1, isTerminator = 1 in {
3114 def tCBZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3115 "cbz\t$Rn, $target", []>,
3116 T1Misc<{0,0,?,1,?,?,?}>,
3117 Requires<[IsThumb2]> {
3121 let Inst{9} = target{5};
3122 let Inst{7-3} = target{4-0};
3126 def tCBNZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3127 "cbnz\t$Rn, $target", []>,
3128 T1Misc<{1,0,?,1,?,?,?}>,
3129 Requires<[IsThumb2]> {
3133 let Inst{9} = target{5};
3134 let Inst{7-3} = target{4-0};
3140 // Change Processor State is a system instruction -- for disassembly and
3142 // FIXME: Since the asm parser has currently no clean way to handle optional
3143 // operands, create 3 versions of the same instruction. Once there's a clean
3144 // framework to represent optional operands, change this behavior.
3145 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3146 !strconcat("cps", asm_op),
3147 [/* For disassembly only; pattern left blank */]> {
3153 let Inst{31-27} = 0b11110;
3155 let Inst{25-20} = 0b111010;
3156 let Inst{19-16} = 0b1111;
3157 let Inst{15-14} = 0b10;
3159 let Inst{10-9} = imod;
3161 let Inst{7-5} = iflags;
3162 let Inst{4-0} = mode;
3163 let DecoderMethod = "DecodeT2CPSInstruction";
3167 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3168 "$imod.w\t$iflags, $mode">;
3169 let mode = 0, M = 0 in
3170 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3171 "$imod.w\t$iflags">;
3172 let imod = 0, iflags = 0, M = 1 in
3173 def t2CPS1p : t2CPS<(ins i32imm:$mode), "\t$mode">;
3175 // A6.3.4 Branches and miscellaneous control
3176 // Table A6-14 Change Processor State, and hint instructions
3177 // Helper class for disassembly only.
3178 class T2I_hint<bits<8> op7_0, string opc, string asm>
3179 : T2I<(outs), (ins), NoItinerary, opc, asm,
3180 [/* For disassembly only; pattern left blank */]> {
3181 let Inst{31-20} = 0xf3a;
3182 let Inst{19-16} = 0b1111;
3183 let Inst{15-14} = 0b10;
3185 let Inst{10-8} = 0b000;
3186 let Inst{7-0} = op7_0;
3189 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3190 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3191 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3192 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3193 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3195 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
3197 let Inst{31-20} = 0b111100111010;
3198 let Inst{19-16} = 0b1111;
3199 let Inst{15-8} = 0b10000000;
3200 let Inst{7-4} = 0b1111;
3201 let Inst{3-0} = opt;
3204 // Secure Monitor Call is a system instruction -- for disassembly only
3205 // Option = Inst{19-16}
3206 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
3207 [/* For disassembly only; pattern left blank */]> {
3208 let Inst{31-27} = 0b11110;
3209 let Inst{26-20} = 0b1111111;
3210 let Inst{15-12} = 0b1000;
3213 let Inst{19-16} = opt;
3216 class T2SRS<bits<12> op31_20,
3217 dag oops, dag iops, InstrItinClass itin,
3218 string opc, string asm, list<dag> pattern>
3219 : T2I<oops, iops, itin, opc, asm, pattern> {
3220 let Inst{31-20} = op31_20{11-0};
3223 let Inst{4-0} = mode{4-0};
3226 // Store Return State is a system instruction -- for disassembly only
3227 def t2SRSDBW : T2SRS<0b111010000010,
3228 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3229 [/* For disassembly only; pattern left blank */]>;
3230 def t2SRSDB : T2SRS<0b111010000000,
3231 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3232 [/* For disassembly only; pattern left blank */]>;
3233 def t2SRSIAW : T2SRS<0b111010011010,
3234 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3235 [/* For disassembly only; pattern left blank */]>;
3236 def t2SRSIA : T2SRS<0b111010011000,
3237 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3238 [/* For disassembly only; pattern left blank */]>;
3240 // Return From Exception is a system instruction -- for disassembly only
3242 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3243 string opc, string asm, list<dag> pattern>
3244 : T2I<oops, iops, itin, opc, asm, pattern> {
3245 let Inst{31-20} = op31_20{11-0};
3248 let Inst{19-16} = Rn;
3249 let Inst{15-0} = 0xc000;
3252 def t2RFEDBW : T2RFE<0b111010000011,
3253 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3254 [/* For disassembly only; pattern left blank */]>;
3255 def t2RFEDB : T2RFE<0b111010000001,
3256 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3257 [/* For disassembly only; pattern left blank */]>;
3258 def t2RFEIAW : T2RFE<0b111010011011,
3259 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3260 [/* For disassembly only; pattern left blank */]>;
3261 def t2RFEIA : T2RFE<0b111010011001,
3262 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3263 [/* For disassembly only; pattern left blank */]>;
3265 //===----------------------------------------------------------------------===//
3266 // Non-Instruction Patterns
3269 // 32-bit immediate using movw + movt.
3270 // This is a single pseudo instruction to make it re-materializable.
3271 // FIXME: Remove this when we can do generalized remat.
3272 let isReMaterializable = 1, isMoveImm = 1 in
3273 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3274 [(set rGPR:$dst, (i32 imm:$src))]>,
3275 Requires<[IsThumb, HasV6T2]>;
3277 // Pseudo instruction that combines movw + movt + add pc (if pic).
3278 // It also makes it possible to rematerialize the instructions.
3279 // FIXME: Remove this when we can do generalized remat and when machine licm
3280 // can properly the instructions.
3281 let isReMaterializable = 1 in {
3282 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3284 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3285 Requires<[IsThumb2, UseMovt]>;
3287 def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3289 [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3290 Requires<[IsThumb2, UseMovt]>;
3293 // ConstantPool, GlobalAddress, and JumpTable
3294 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3295 Requires<[IsThumb2, DontUseMovt]>;
3296 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3297 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3298 Requires<[IsThumb2, UseMovt]>;
3300 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3301 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3303 // Pseudo instruction that combines ldr from constpool and add pc. This should
3304 // be expanded into two instructions late to allow if-conversion and
3306 let canFoldAsLoad = 1, isReMaterializable = 1 in
3307 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3309 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3311 Requires<[IsThumb2]>;
3312 //===----------------------------------------------------------------------===//
3313 // Coprocessor load/store -- for disassembly only
3315 class T2CI<dag oops, dag iops, string opc, string asm>
3316 : T2I<oops, iops, NoItinerary, opc, asm, []> {
3317 let Inst{27-25} = 0b110;
3320 multiclass T2LdStCop<bits<4> op31_28, bit load, string opc> {
3321 def _OFFSET : T2CI<(outs),
3322 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3323 opc, "\tp$cop, cr$CRd, $addr"> {
3324 let Inst{31-28} = op31_28;
3325 let Inst{24} = 1; // P = 1
3326 let Inst{21} = 0; // W = 0
3327 let Inst{22} = 0; // D = 0
3328 let Inst{20} = load;
3329 let DecoderMethod = "DecodeCopMemInstruction";
3332 def _PRE : T2CI<(outs),
3333 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3334 opc, "\tp$cop, cr$CRd, $addr!"> {
3335 let Inst{31-28} = op31_28;
3336 let Inst{24} = 1; // P = 1
3337 let Inst{21} = 1; // W = 1
3338 let Inst{22} = 0; // D = 0
3339 let Inst{20} = load;
3340 let DecoderMethod = "DecodeCopMemInstruction";
3343 def _POST : T2CI<(outs),
3344 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3345 opc, "\tp$cop, cr$CRd, $addr"> {
3346 let Inst{31-28} = op31_28;
3347 let Inst{24} = 0; // P = 0
3348 let Inst{21} = 1; // W = 1
3349 let Inst{22} = 0; // D = 0
3350 let Inst{20} = load;
3351 let DecoderMethod = "DecodeCopMemInstruction";
3354 def _OPTION : T2CI<(outs),
3355 (ins nohash_imm:$cop,nohash_imm:$CRd,GPR:$base, nohash_imm:$option),
3356 opc, "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
3357 let Inst{31-28} = op31_28;
3358 let Inst{24} = 0; // P = 0
3359 let Inst{23} = 1; // U = 1
3360 let Inst{21} = 0; // W = 0
3361 let Inst{22} = 0; // D = 0
3362 let Inst{20} = load;
3363 let DecoderMethod = "DecodeCopMemInstruction";
3366 def L_OFFSET : T2CI<(outs),
3367 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3368 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr"> {
3369 let Inst{31-28} = op31_28;
3370 let Inst{24} = 1; // P = 1
3371 let Inst{21} = 0; // W = 0
3372 let Inst{22} = 1; // D = 1
3373 let Inst{20} = load;
3374 let DecoderMethod = "DecodeCopMemInstruction";
3377 def L_PRE : T2CI<(outs),
3378 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3379 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr!"> {
3380 let Inst{31-28} = op31_28;
3381 let Inst{24} = 1; // P = 1
3382 let Inst{21} = 1; // W = 1
3383 let Inst{22} = 1; // D = 1
3384 let Inst{20} = load;
3385 let DecoderMethod = "DecodeCopMemInstruction";
3388 def L_POST : T2CI<(outs),
3389 (ins nohash_imm:$cop, nohash_imm:$CRd, addr_offset_none:$addr,
3390 postidx_imm8s4:$offset),
3391 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr, $offset"> {
3392 let Inst{31-28} = op31_28;
3393 let Inst{24} = 0; // P = 0
3394 let Inst{21} = 1; // W = 1
3395 let Inst{22} = 1; // D = 1
3396 let Inst{20} = load;
3397 let DecoderMethod = "DecodeCopMemInstruction";
3400 def L_OPTION : T2CI<(outs),
3401 (ins nohash_imm:$cop, nohash_imm:$CRd,GPR:$base,nohash_imm:$option),
3402 !strconcat(opc, "l"), "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
3403 let Inst{31-28} = op31_28;
3404 let Inst{24} = 0; // P = 0
3405 let Inst{23} = 1; // U = 1
3406 let Inst{21} = 0; // W = 0
3407 let Inst{22} = 1; // D = 1
3408 let Inst{20} = load;
3409 let DecoderMethod = "DecodeCopMemInstruction";
3413 defm t2LDC : T2LdStCop<0b1111, 1, "ldc">;
3414 defm t2STC : T2LdStCop<0b1111, 0, "stc">;
3417 //===----------------------------------------------------------------------===//
3418 // Move between special register and ARM core register -- for disassembly only
3421 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3422 dag oops, dag iops, InstrItinClass itin,
3423 string opc, string asm, list<dag> pattern>
3424 : T2I<oops, iops, itin, opc, asm, pattern> {
3425 let Inst{31-20} = op31_20{11-0};
3426 let Inst{15-14} = op15_14{1-0};
3428 let Inst{12} = op12{0};
3432 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3433 dag oops, dag iops, InstrItinClass itin,
3434 string opc, string asm, list<dag> pattern>
3435 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3437 let Inst{11-8} = Rd;
3438 let Inst{19-16} = 0b1111;
3441 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3442 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3443 [/* For disassembly only; pattern left blank */]>;
3444 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3445 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3446 [/* For disassembly only; pattern left blank */]>;
3448 // Move from ARM core register to Special Register
3450 // No need to have both system and application versions, the encodings are the
3451 // same and the assembly parser has no way to distinguish between them. The mask
3452 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3453 // the mask with the fields to be accessed in the special register.
3454 def t2MSR : T2SpecialReg<0b111100111000 /* op31-20 */, 0b10 /* op15-14 */,
3455 0 /* op12 */, (outs), (ins msr_mask:$mask, rGPR:$Rn),
3456 NoItinerary, "msr", "\t$mask, $Rn",
3457 [/* For disassembly only; pattern left blank */]> {
3460 let Inst{19-16} = Rn;
3461 let Inst{20} = mask{4}; // R Bit
3462 let Inst{11-8} = mask{3-0};
3465 //===----------------------------------------------------------------------===//
3466 // Move between coprocessor and ARM core register
3469 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
3471 : T2Cop<Op, oops, iops,
3472 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3474 let Inst{27-24} = 0b1110;
3475 let Inst{20} = direction;
3485 let Inst{15-12} = Rt;
3486 let Inst{11-8} = cop;
3487 let Inst{23-21} = opc1;
3488 let Inst{7-5} = opc2;
3489 let Inst{3-0} = CRm;
3490 let Inst{19-16} = CRn;
3493 class t2MovRRCopro<bits<4> Op, string opc, bit direction,
3494 list<dag> pattern = []>
3496 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3497 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
3498 let Inst{27-24} = 0b1100;
3499 let Inst{23-21} = 0b010;
3500 let Inst{20} = direction;
3508 let Inst{15-12} = Rt;
3509 let Inst{19-16} = Rt2;
3510 let Inst{11-8} = cop;
3511 let Inst{7-4} = opc1;
3512 let Inst{3-0} = CRm;
3515 /* from ARM core register to coprocessor */
3516 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
3518 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3519 c_imm:$CRm, imm0_7:$opc2),
3520 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3521 imm:$CRm, imm:$opc2)]>;
3522 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
3523 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3524 c_imm:$CRm, imm0_7:$opc2),
3525 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3526 imm:$CRm, imm:$opc2)]>;
3528 /* from coprocessor to ARM core register */
3529 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
3530 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3531 c_imm:$CRm, imm0_7:$opc2), []>;
3533 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
3534 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3535 c_imm:$CRm, imm0_7:$opc2), []>;
3537 def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3538 (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3540 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3541 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3544 /* from ARM core register to coprocessor */
3545 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0,
3546 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
3548 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0,
3549 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
3550 GPR:$Rt2, imm:$CRm)]>;
3551 /* from coprocessor to ARM core register */
3552 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>;
3554 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1>;
3556 //===----------------------------------------------------------------------===//
3557 // Other Coprocessor Instructions.
3560 def tCDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3561 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3562 "cdp\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3563 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3564 imm:$CRm, imm:$opc2)]> {
3565 let Inst{27-24} = 0b1110;
3574 let Inst{3-0} = CRm;
3576 let Inst{7-5} = opc2;
3577 let Inst{11-8} = cop;
3578 let Inst{15-12} = CRd;
3579 let Inst{19-16} = CRn;
3580 let Inst{23-20} = opc1;
3583 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3584 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3585 "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3586 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3587 imm:$CRm, imm:$opc2)]> {
3588 let Inst{27-24} = 0b1110;
3597 let Inst{3-0} = CRm;
3599 let Inst{7-5} = opc2;
3600 let Inst{11-8} = cop;
3601 let Inst{15-12} = CRd;
3602 let Inst{19-16} = CRn;
3603 let Inst{23-20} = opc1;
3608 //===----------------------------------------------------------------------===//
3609 // Non-Instruction Patterns
3612 // SXT/UXT with no rotate
3613 let AddedComplexity = 16 in {
3614 def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>,
3615 Requires<[IsThumb2]>;
3616 def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>,
3617 Requires<[IsThumb2]>;
3618 def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>,
3619 Requires<[HasT2ExtractPack, IsThumb2]>;
3620 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)),
3621 (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3622 Requires<[HasT2ExtractPack, IsThumb2]>;
3623 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)),
3624 (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3625 Requires<[HasT2ExtractPack, IsThumb2]>;
3628 def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>,
3629 Requires<[IsThumb2]>;
3630 def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>,
3631 Requires<[IsThumb2]>;
3632 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)),
3633 (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3634 Requires<[HasT2ExtractPack, IsThumb2]>;
3635 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)),
3636 (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3637 Requires<[HasT2ExtractPack, IsThumb2]>;
3639 // Atomic load/store patterns
3640 def : T2Pat<(atomic_load_8 t2addrmode_imm12:$addr),
3641 (t2LDRBi12 t2addrmode_imm12:$addr)>;
3642 def : T2Pat<(atomic_load_8 t2addrmode_negimm8:$addr),
3643 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
3644 def : T2Pat<(atomic_load_8 t2addrmode_so_reg:$addr),
3645 (t2LDRBs t2addrmode_so_reg:$addr)>;
3646 def : T2Pat<(atomic_load_16 t2addrmode_imm12:$addr),
3647 (t2LDRHi12 t2addrmode_imm12:$addr)>;
3648 def : T2Pat<(atomic_load_16 t2addrmode_negimm8:$addr),
3649 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
3650 def : T2Pat<(atomic_load_16 t2addrmode_so_reg:$addr),
3651 (t2LDRHs t2addrmode_so_reg:$addr)>;
3652 def : T2Pat<(atomic_load_32 t2addrmode_imm12:$addr),
3653 (t2LDRi12 t2addrmode_imm12:$addr)>;
3654 def : T2Pat<(atomic_load_32 t2addrmode_negimm8:$addr),
3655 (t2LDRi8 t2addrmode_negimm8:$addr)>;
3656 def : T2Pat<(atomic_load_32 t2addrmode_so_reg:$addr),
3657 (t2LDRs t2addrmode_so_reg:$addr)>;
3658 def : T2Pat<(atomic_store_8 t2addrmode_imm12:$addr, GPR:$val),
3659 (t2STRBi12 GPR:$val, t2addrmode_imm12:$addr)>;
3660 def : T2Pat<(atomic_store_8 t2addrmode_negimm8:$addr, GPR:$val),
3661 (t2STRBi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3662 def : T2Pat<(atomic_store_8 t2addrmode_so_reg:$addr, GPR:$val),
3663 (t2STRBs GPR:$val, t2addrmode_so_reg:$addr)>;
3664 def : T2Pat<(atomic_store_16 t2addrmode_imm12:$addr, GPR:$val),
3665 (t2STRHi12 GPR:$val, t2addrmode_imm12:$addr)>;
3666 def : T2Pat<(atomic_store_16 t2addrmode_negimm8:$addr, GPR:$val),
3667 (t2STRHi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3668 def : T2Pat<(atomic_store_16 t2addrmode_so_reg:$addr, GPR:$val),
3669 (t2STRHs GPR:$val, t2addrmode_so_reg:$addr)>;
3670 def : T2Pat<(atomic_store_32 t2addrmode_imm12:$addr, GPR:$val),
3671 (t2STRi12 GPR:$val, t2addrmode_imm12:$addr)>;
3672 def : T2Pat<(atomic_store_32 t2addrmode_negimm8:$addr, GPR:$val),
3673 (t2STRi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3674 def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val),
3675 (t2STRs GPR:$val, t2addrmode_so_reg:$addr)>;
3678 //===----------------------------------------------------------------------===//
3679 // Assembler aliases
3682 // Aliases for ADC without the ".w" optional width specifier.
3683 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm",
3684 (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3685 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm",
3686 (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3687 pred:$p, cc_out:$s)>;
3689 // Aliases for SBC without the ".w" optional width specifier.
3690 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm",
3691 (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3692 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
3693 (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3694 pred:$p, cc_out:$s)>;
3696 // Aliases for ADD without the ".w" optional width specifier.
3697 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
3698 (t2ADDri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3699 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
3700 (t2ADDri12 rGPR:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
3701 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
3702 (t2ADDrr rGPR:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3703 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
3704 (t2ADDrs rGPR:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
3705 pred:$p, cc_out:$s)>;
3707 // Alias for compares without the ".w" optional width specifier.
3708 def : t2InstAlias<"cmn${p} $Rn, $Rm",
3709 (t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3710 def : t2InstAlias<"teq${p} $Rn, $Rm",
3711 (t2TEQrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3712 def : t2InstAlias<"tst${p} $Rn, $Rm",
3713 (t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3716 def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb2, HasDB]>;
3717 def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb2, HasDB]>;
3718 def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb2, HasDB]>;
3720 // Alias for LDR, LDRB, LDRH without the ".w" optional width specifier.
3721 def : t2InstAlias<"ldr${p} $Rt, $addr",
3722 (t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3723 def : t2InstAlias<"ldrb${p} $Rt, $addr",
3724 (t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3725 def : t2InstAlias<"ldrh${p} $Rt, $addr",
3726 (t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3727 def : t2InstAlias<"ldr${p} $Rt, $addr",
3728 (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3729 def : t2InstAlias<"ldrb${p} $Rt, $addr",
3730 (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3731 def : t2InstAlias<"ldrh${p} $Rt, $addr",
3732 (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;