1 //===-- ARMInstrThumb2.td - Thumb2 support for ARM ---------*- tablegen -*-===//
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 // t2_shift_imm: An integer that encodes a shift amount and the type of shift
32 // (asr or lsl). The 6-bit immediate encodes as:
35 // {4-0} imm5 shift amount.
36 // asr #32 not allowed
37 def t2_shift_imm : Operand<i32> {
38 let PrintMethod = "printShiftImmOperand";
39 let ParserMatchClass = ShifterImmAsmOperand;
40 let DecoderMethod = "DecodeT2ShifterImmOperand";
43 // Shifted operands. No register controlled shifts for Thumb2.
44 // Note: We do not support rrx shifted operands yet.
45 def t2_so_reg : Operand<i32>, // reg imm
46 ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
48 let EncoderMethod = "getT2SORegOpValue";
49 let PrintMethod = "printT2SOOperand";
50 let DecoderMethod = "DecodeSORegImmOperand";
51 let ParserMatchClass = ShiftedImmAsmOperand;
52 let MIOperandInfo = (ops rGPR, i32imm);
55 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
56 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
57 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
60 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
61 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
62 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), MVT::i32);
65 // t2_so_imm - Match a 32-bit immediate operand, which is an
66 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
67 // immediate splatted into multiple bytes of the word.
68 def t2_so_imm_asmoperand : ImmAsmOperand { let Name = "T2SOImm"; }
69 def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{
70 return ARM_AM::getT2SOImmVal(Imm) != -1;
72 let ParserMatchClass = t2_so_imm_asmoperand;
73 let EncoderMethod = "getT2SOImmOpValue";
74 let DecoderMethod = "DecodeT2SOImm";
77 // t2_so_imm_not - Match an immediate that is a complement
79 // Note: this pattern doesn't require an encoder method and such, as it's
80 // only used on aliases (Pat<> and InstAlias<>). The actual encoding
81 // is handled by the destination instructions, which use t2_so_imm.
82 def t2_so_imm_not_asmoperand : AsmOperandClass { let Name = "T2SOImmNot"; }
83 def t2_so_imm_not : Operand<i32>, PatLeaf<(imm), [{
84 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
85 }], t2_so_imm_not_XFORM> {
86 let ParserMatchClass = t2_so_imm_not_asmoperand;
89 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
90 def t2_so_imm_neg_asmoperand : AsmOperandClass { let Name = "T2SOImmNeg"; }
91 def t2_so_imm_neg : Operand<i32>, PatLeaf<(imm), [{
92 int64_t Value = -(int)N->getZExtValue();
93 return Value && ARM_AM::getT2SOImmVal(Value) != -1;
94 }], t2_so_imm_neg_XFORM> {
95 let ParserMatchClass = t2_so_imm_neg_asmoperand;
98 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
99 def imm0_4095 : Operand<i32>,
101 return Imm >= 0 && Imm < 4096;
104 def imm0_4095_neg : PatLeaf<(i32 imm), [{
105 return (uint32_t)(-N->getZExtValue()) < 4096;
108 def imm0_255_neg : PatLeaf<(i32 imm), [{
109 return (uint32_t)(-N->getZExtValue()) < 255;
112 def imm0_255_not : PatLeaf<(i32 imm), [{
113 return (uint32_t)(~N->getZExtValue()) < 255;
116 def lo5AllOne : PatLeaf<(i32 imm), [{
117 // Returns true if all low 5-bits are 1.
118 return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL;
121 // Define Thumb2 specific addressing modes.
123 // t2addrmode_imm12 := reg + imm12
124 def t2addrmode_imm12_asmoperand : AsmOperandClass {let Name="MemUImm12Offset";}
125 def t2addrmode_imm12 : Operand<i32>,
126 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
127 let PrintMethod = "printAddrModeImm12Operand";
128 let EncoderMethod = "getAddrModeImm12OpValue";
129 let DecoderMethod = "DecodeT2AddrModeImm12";
130 let ParserMatchClass = t2addrmode_imm12_asmoperand;
131 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
134 // t2ldrlabel := imm12
135 def t2ldrlabel : Operand<i32> {
136 let EncoderMethod = "getAddrModeImm12OpValue";
137 let PrintMethod = "printT2LdrLabelOperand";
140 def t2ldr_pcrel_imm12_asmoperand : AsmOperandClass {let Name = "MemPCRelImm12";}
141 def t2ldr_pcrel_imm12 : Operand<i32> {
142 let ParserMatchClass = t2ldr_pcrel_imm12_asmoperand;
143 // used for assembler pseudo instruction and maps to t2ldrlabel, so
144 // doesn't need encoder or print methods of its own.
147 // ADR instruction labels.
148 def t2adrlabel : Operand<i32> {
149 let EncoderMethod = "getT2AdrLabelOpValue";
153 // t2addrmode_posimm8 := reg + imm8
154 def MemPosImm8OffsetAsmOperand : AsmOperandClass {let Name="MemPosImm8Offset";}
155 def t2addrmode_posimm8 : Operand<i32> {
156 let PrintMethod = "printT2AddrModeImm8Operand";
157 let EncoderMethod = "getT2AddrModeImm8OpValue";
158 let DecoderMethod = "DecodeT2AddrModeImm8";
159 let ParserMatchClass = MemPosImm8OffsetAsmOperand;
160 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
163 // t2addrmode_negimm8 := reg - imm8
164 def MemNegImm8OffsetAsmOperand : AsmOperandClass {let Name="MemNegImm8Offset";}
165 def t2addrmode_negimm8 : Operand<i32>,
166 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
167 let PrintMethod = "printT2AddrModeImm8Operand";
168 let EncoderMethod = "getT2AddrModeImm8OpValue";
169 let DecoderMethod = "DecodeT2AddrModeImm8";
170 let ParserMatchClass = MemNegImm8OffsetAsmOperand;
171 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
174 // t2addrmode_imm8 := reg +/- imm8
175 def MemImm8OffsetAsmOperand : AsmOperandClass { let Name = "MemImm8Offset"; }
176 def t2addrmode_imm8 : Operand<i32>,
177 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
178 let PrintMethod = "printT2AddrModeImm8Operand";
179 let EncoderMethod = "getT2AddrModeImm8OpValue";
180 let DecoderMethod = "DecodeT2AddrModeImm8";
181 let ParserMatchClass = MemImm8OffsetAsmOperand;
182 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
185 def t2am_imm8_offset : Operand<i32>,
186 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
187 [], [SDNPWantRoot]> {
188 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
189 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
190 let DecoderMethod = "DecodeT2Imm8";
193 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
194 def MemImm8s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm8s4Offset";}
195 def t2addrmode_imm8s4 : Operand<i32> {
196 let PrintMethod = "printT2AddrModeImm8s4Operand";
197 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
198 let DecoderMethod = "DecodeT2AddrModeImm8s4";
199 let ParserMatchClass = MemImm8s4OffsetAsmOperand;
200 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
203 def t2am_imm8s4_offset_asmoperand : AsmOperandClass { let Name = "Imm8s4"; }
204 def t2am_imm8s4_offset : Operand<i32> {
205 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
206 let EncoderMethod = "getT2Imm8s4OpValue";
207 let DecoderMethod = "DecodeT2Imm8S4";
210 // t2addrmode_imm0_1020s4 := reg + (imm8 << 2)
211 def MemImm0_1020s4OffsetAsmOperand : AsmOperandClass {
212 let Name = "MemImm0_1020s4Offset";
214 def t2addrmode_imm0_1020s4 : Operand<i32> {
215 let PrintMethod = "printT2AddrModeImm0_1020s4Operand";
216 let EncoderMethod = "getT2AddrModeImm0_1020s4OpValue";
217 let DecoderMethod = "DecodeT2AddrModeImm0_1020s4";
218 let ParserMatchClass = MemImm0_1020s4OffsetAsmOperand;
219 let MIOperandInfo = (ops GPRnopc:$base, i32imm:$offsimm);
222 // t2addrmode_so_reg := reg + (reg << imm2)
223 def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";}
224 def t2addrmode_so_reg : Operand<i32>,
225 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
226 let PrintMethod = "printT2AddrModeSoRegOperand";
227 let EncoderMethod = "getT2AddrModeSORegOpValue";
228 let DecoderMethod = "DecodeT2AddrModeSOReg";
229 let ParserMatchClass = t2addrmode_so_reg_asmoperand;
230 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
233 // Addresses for the TBB/TBH instructions.
234 def addrmode_tbb_asmoperand : AsmOperandClass { let Name = "MemTBB"; }
235 def addrmode_tbb : Operand<i32> {
236 let PrintMethod = "printAddrModeTBB";
237 let ParserMatchClass = addrmode_tbb_asmoperand;
238 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
240 def addrmode_tbh_asmoperand : AsmOperandClass { let Name = "MemTBH"; }
241 def addrmode_tbh : Operand<i32> {
242 let PrintMethod = "printAddrModeTBH";
243 let ParserMatchClass = addrmode_tbh_asmoperand;
244 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
247 //===----------------------------------------------------------------------===//
248 // Multiclass helpers...
252 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
253 string opc, string asm, list<dag> pattern>
254 : T2I<oops, iops, itin, opc, asm, pattern> {
259 let Inst{26} = imm{11};
260 let Inst{14-12} = imm{10-8};
261 let Inst{7-0} = imm{7-0};
265 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
266 string opc, string asm, list<dag> pattern>
267 : T2sI<oops, iops, itin, opc, asm, pattern> {
273 let Inst{26} = imm{11};
274 let Inst{14-12} = imm{10-8};
275 let Inst{7-0} = imm{7-0};
278 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
279 string opc, string asm, list<dag> pattern>
280 : T2I<oops, iops, itin, opc, asm, pattern> {
284 let Inst{19-16} = Rn;
285 let Inst{26} = imm{11};
286 let Inst{14-12} = imm{10-8};
287 let Inst{7-0} = imm{7-0};
291 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
292 string opc, string asm, list<dag> pattern>
293 : T2I<oops, iops, itin, opc, asm, pattern> {
298 let Inst{3-0} = ShiftedRm{3-0};
299 let Inst{5-4} = ShiftedRm{6-5};
300 let Inst{14-12} = ShiftedRm{11-9};
301 let Inst{7-6} = ShiftedRm{8-7};
304 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
305 string opc, string asm, list<dag> pattern>
306 : T2sI<oops, iops, itin, opc, asm, pattern> {
311 let Inst{3-0} = ShiftedRm{3-0};
312 let Inst{5-4} = ShiftedRm{6-5};
313 let Inst{14-12} = ShiftedRm{11-9};
314 let Inst{7-6} = ShiftedRm{8-7};
317 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
318 string opc, string asm, list<dag> pattern>
319 : T2I<oops, iops, itin, opc, asm, pattern> {
323 let Inst{19-16} = Rn;
324 let Inst{3-0} = ShiftedRm{3-0};
325 let Inst{5-4} = ShiftedRm{6-5};
326 let Inst{14-12} = ShiftedRm{11-9};
327 let Inst{7-6} = ShiftedRm{8-7};
330 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
331 string opc, string asm, list<dag> pattern>
332 : T2I<oops, iops, itin, opc, asm, pattern> {
340 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
341 string opc, string asm, list<dag> pattern>
342 : T2sI<oops, iops, itin, opc, asm, pattern> {
350 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
351 string opc, string asm, list<dag> pattern>
352 : T2I<oops, iops, itin, opc, asm, pattern> {
356 let Inst{19-16} = Rn;
361 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
362 string opc, string asm, list<dag> pattern>
363 : T2I<oops, iops, itin, opc, asm, pattern> {
369 let Inst{19-16} = Rn;
370 let Inst{26} = imm{11};
371 let Inst{14-12} = imm{10-8};
372 let Inst{7-0} = imm{7-0};
375 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
376 string opc, string asm, list<dag> pattern>
377 : T2sI<oops, iops, itin, opc, asm, pattern> {
383 let Inst{19-16} = Rn;
384 let Inst{26} = imm{11};
385 let Inst{14-12} = imm{10-8};
386 let Inst{7-0} = imm{7-0};
389 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
390 string opc, string asm, list<dag> pattern>
391 : T2I<oops, iops, itin, opc, asm, pattern> {
398 let Inst{14-12} = imm{4-2};
399 let Inst{7-6} = imm{1-0};
402 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
403 string opc, string asm, list<dag> pattern>
404 : T2sI<oops, iops, itin, opc, asm, pattern> {
411 let Inst{14-12} = imm{4-2};
412 let Inst{7-6} = imm{1-0};
415 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
416 string opc, string asm, list<dag> pattern>
417 : T2I<oops, iops, itin, opc, asm, pattern> {
423 let Inst{19-16} = Rn;
427 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
428 string opc, string asm, list<dag> pattern>
429 : T2sI<oops, iops, itin, opc, asm, pattern> {
435 let Inst{19-16} = Rn;
439 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
440 string opc, string asm, list<dag> pattern>
441 : T2I<oops, iops, itin, opc, asm, pattern> {
447 let Inst{19-16} = Rn;
448 let Inst{3-0} = ShiftedRm{3-0};
449 let Inst{5-4} = ShiftedRm{6-5};
450 let Inst{14-12} = ShiftedRm{11-9};
451 let Inst{7-6} = ShiftedRm{8-7};
454 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
455 string opc, string asm, list<dag> pattern>
456 : T2sI<oops, iops, itin, opc, asm, pattern> {
462 let Inst{19-16} = Rn;
463 let Inst{3-0} = ShiftedRm{3-0};
464 let Inst{5-4} = ShiftedRm{6-5};
465 let Inst{14-12} = ShiftedRm{11-9};
466 let Inst{7-6} = ShiftedRm{8-7};
469 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
470 string opc, string asm, list<dag> pattern>
471 : T2I<oops, iops, itin, opc, asm, pattern> {
477 let Inst{19-16} = Rn;
478 let Inst{15-12} = Ra;
483 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
484 dag oops, dag iops, InstrItinClass itin,
485 string opc, string asm, list<dag> pattern>
486 : T2I<oops, iops, itin, opc, asm, pattern> {
492 let Inst{31-23} = 0b111110111;
493 let Inst{22-20} = opc22_20;
494 let Inst{19-16} = Rn;
495 let Inst{15-12} = RdLo;
496 let Inst{11-8} = RdHi;
497 let Inst{7-4} = opc7_4;
502 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
503 /// binary operation that produces a value. These are predicable and can be
504 /// changed to modify CPSR.
505 multiclass T2I_bin_irs<bits<4> opcod, string opc,
506 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
507 PatFrag opnode, string baseOpc, bit Commutable = 0,
510 def ri : T2sTwoRegImm<
511 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
512 opc, "\t$Rd, $Rn, $imm",
513 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
514 let Inst{31-27} = 0b11110;
516 let Inst{24-21} = opcod;
520 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
521 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
522 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
523 let isCommutable = Commutable;
524 let Inst{31-27} = 0b11101;
525 let Inst{26-25} = 0b01;
526 let Inst{24-21} = opcod;
527 let Inst{14-12} = 0b000; // imm3
528 let Inst{7-6} = 0b00; // imm2
529 let Inst{5-4} = 0b00; // type
532 def rs : T2sTwoRegShiftedReg<
533 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
534 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
535 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
536 let Inst{31-27} = 0b11101;
537 let Inst{26-25} = 0b01;
538 let Inst{24-21} = opcod;
540 // Assembly aliases for optional destination operand when it's the same
541 // as the source operand.
542 def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
543 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
544 t2_so_imm:$imm, pred:$p,
546 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
547 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
550 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
551 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
552 t2_so_reg:$shift, pred:$p,
556 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
557 // the ".w" suffix to indicate that they are wide.
558 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
559 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
560 PatFrag opnode, string baseOpc, bit Commutable = 0> :
561 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, baseOpc, Commutable, ".w"> {
562 // Assembler aliases w/ the ".w" suffix.
563 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rd, $Rn, $imm"),
564 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rd, rGPR:$Rn,
565 t2_so_imm:$imm, pred:$p,
567 // Assembler aliases w/o the ".w" suffix.
568 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
569 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rd, rGPR:$Rn,
572 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"),
573 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rd, rGPR:$Rn,
574 t2_so_reg:$shift, pred:$p,
577 // and with the optional destination operand, too.
578 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rdn, $imm"),
579 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
580 t2_so_imm:$imm, pred:$p,
582 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
583 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
586 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"),
587 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
588 t2_so_reg:$shift, pred:$p,
592 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
593 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
594 /// it is equivalent to the T2I_bin_irs counterpart.
595 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
597 def ri : T2sTwoRegImm<
598 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
599 opc, ".w\t$Rd, $Rn, $imm",
600 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
601 let Inst{31-27} = 0b11110;
603 let Inst{24-21} = opcod;
607 def rr : T2sThreeReg<
608 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
609 opc, "\t$Rd, $Rn, $Rm",
610 [/* For disassembly only; pattern left blank */]> {
611 let Inst{31-27} = 0b11101;
612 let Inst{26-25} = 0b01;
613 let Inst{24-21} = opcod;
614 let Inst{14-12} = 0b000; // imm3
615 let Inst{7-6} = 0b00; // imm2
616 let Inst{5-4} = 0b00; // type
619 def rs : T2sTwoRegShiftedReg<
620 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
621 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
622 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
623 let Inst{31-27} = 0b11101;
624 let Inst{26-25} = 0b01;
625 let Inst{24-21} = opcod;
629 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
630 /// instruction modifies the CPSR register.
632 /// These opcodes will be converted to the real non-S opcodes by
633 /// AdjustInstrPostInstrSelection after giving then an optional CPSR operand.
634 let hasPostISelHook = 1, Defs = [CPSR] in {
635 multiclass T2I_bin_s_irs<InstrItinClass iii, InstrItinClass iir,
636 InstrItinClass iis, PatFrag opnode,
637 bit Commutable = 0> {
639 def ri : t2PseudoInst<(outs rGPR:$Rd),
640 (ins GPRnopc:$Rn, t2_so_imm:$imm, pred:$p),
642 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
645 def rr : t2PseudoInst<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm, pred:$p),
647 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
649 let isCommutable = Commutable;
652 def rs : t2PseudoInst<(outs rGPR:$Rd),
653 (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
655 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
656 t2_so_reg:$ShiftedRm))]>;
660 /// T2I_rbin_s_is - Same as T2I_bin_s_irs, except selection DAG
661 /// operands are reversed.
662 let hasPostISelHook = 1, Defs = [CPSR] in {
663 multiclass T2I_rbin_s_is<PatFrag opnode> {
665 def ri : t2PseudoInst<(outs rGPR:$Rd),
666 (ins GPRnopc:$Rn, t2_so_imm:$imm, pred:$p),
668 [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm,
671 def rs : t2PseudoInst<(outs rGPR:$Rd),
672 (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
674 [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm,
679 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
680 /// patterns for a binary operation that produces a value.
681 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
682 bit Commutable = 0> {
684 // The register-immediate version is re-materializable. This is useful
685 // in particular for taking the address of a local.
686 let isReMaterializable = 1 in {
687 def ri : T2sTwoRegImm<
688 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
689 opc, ".w\t$Rd, $Rn, $imm",
690 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]> {
691 let Inst{31-27} = 0b11110;
694 let Inst{23-21} = op23_21;
700 (outs GPRnopc:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
701 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
702 [(set GPRnopc:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
706 let Inst{31-27} = 0b11110;
707 let Inst{26} = imm{11};
708 let Inst{25-24} = 0b10;
709 let Inst{23-21} = op23_21;
710 let Inst{20} = 0; // The S bit.
711 let Inst{19-16} = Rn;
713 let Inst{14-12} = imm{10-8};
715 let Inst{7-0} = imm{7-0};
718 def rr : T2sThreeReg<(outs GPRnopc:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm),
719 IIC_iALUr, opc, ".w\t$Rd, $Rn, $Rm",
720 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]> {
721 let isCommutable = Commutable;
722 let Inst{31-27} = 0b11101;
723 let Inst{26-25} = 0b01;
725 let Inst{23-21} = op23_21;
726 let Inst{14-12} = 0b000; // imm3
727 let Inst{7-6} = 0b00; // imm2
728 let Inst{5-4} = 0b00; // type
731 def rs : T2sTwoRegShiftedReg<
732 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
733 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
734 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]> {
735 let Inst{31-27} = 0b11101;
736 let Inst{26-25} = 0b01;
738 let Inst{23-21} = op23_21;
742 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
743 /// for a binary operation that produces a value and use the carry
744 /// bit. It's not predicable.
745 let Defs = [CPSR], Uses = [CPSR] in {
746 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
747 bit Commutable = 0> {
749 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
750 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
751 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_imm:$imm, CPSR))]>,
752 Requires<[IsThumb2]> {
753 let Inst{31-27} = 0b11110;
755 let Inst{24-21} = opcod;
759 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
760 opc, ".w\t$Rd, $Rn, $Rm",
761 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, rGPR:$Rm, CPSR))]>,
762 Requires<[IsThumb2]> {
763 let isCommutable = Commutable;
764 let Inst{31-27} = 0b11101;
765 let Inst{26-25} = 0b01;
766 let Inst{24-21} = opcod;
767 let Inst{14-12} = 0b000; // imm3
768 let Inst{7-6} = 0b00; // imm2
769 let Inst{5-4} = 0b00; // type
772 def rs : T2sTwoRegShiftedReg<
773 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
774 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
775 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm, CPSR))]>,
776 Requires<[IsThumb2]> {
777 let Inst{31-27} = 0b11101;
778 let Inst{26-25} = 0b01;
779 let Inst{24-21} = opcod;
784 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
785 // rotate operation that produces a value.
786 multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, PatFrag opnode,
789 def ri : T2sTwoRegShiftImm<
790 (outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi,
791 opc, ".w\t$Rd, $Rm, $imm",
792 [(set rGPR:$Rd, (opnode rGPR:$Rm, (i32 ty:$imm)))]> {
793 let Inst{31-27} = 0b11101;
794 let Inst{26-21} = 0b010010;
795 let Inst{19-16} = 0b1111; // Rn
796 let Inst{5-4} = opcod;
799 def rr : T2sThreeReg<
800 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
801 opc, ".w\t$Rd, $Rn, $Rm",
802 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
803 let Inst{31-27} = 0b11111;
804 let Inst{26-23} = 0b0100;
805 let Inst{22-21} = opcod;
806 let Inst{15-12} = 0b1111;
807 let Inst{7-4} = 0b0000;
810 // Optional destination register
811 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"),
812 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
815 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"),
816 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
820 // Assembler aliases w/o the ".w" suffix.
821 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"),
822 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rd, rGPR:$Rn,
825 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
826 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rd, rGPR:$Rn,
830 // and with the optional destination operand, too.
831 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"),
832 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
835 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
836 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
841 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
842 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
843 /// a explicit result, only implicitly set CPSR.
844 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
845 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
846 PatFrag opnode, string baseOpc> {
847 let isCompare = 1, Defs = [CPSR] in {
849 def ri : T2OneRegCmpImm<
850 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), iii,
851 opc, ".w\t$Rn, $imm",
852 [(opnode GPRnopc:$Rn, t2_so_imm:$imm)]> {
853 let Inst{31-27} = 0b11110;
855 let Inst{24-21} = opcod;
856 let Inst{20} = 1; // The S bit.
858 let Inst{11-8} = 0b1111; // Rd
861 def rr : T2TwoRegCmp<
862 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), iir,
864 [(opnode GPRnopc:$Rn, rGPR:$Rm)]> {
865 let Inst{31-27} = 0b11101;
866 let Inst{26-25} = 0b01;
867 let Inst{24-21} = opcod;
868 let Inst{20} = 1; // The S bit.
869 let Inst{14-12} = 0b000; // imm3
870 let Inst{11-8} = 0b1111; // Rd
871 let Inst{7-6} = 0b00; // imm2
872 let Inst{5-4} = 0b00; // type
875 def rs : T2OneRegCmpShiftedReg<
876 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), iis,
877 opc, ".w\t$Rn, $ShiftedRm",
878 [(opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]> {
879 let Inst{31-27} = 0b11101;
880 let Inst{26-25} = 0b01;
881 let Inst{24-21} = opcod;
882 let Inst{20} = 1; // The S bit.
883 let Inst{11-8} = 0b1111; // Rd
887 // Assembler aliases w/o the ".w" suffix.
888 // No alias here for 'rr' version as not all instantiations of this
889 // multiclass want one (CMP in particular, does not).
890 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"),
891 (!cast<Instruction>(!strconcat(baseOpc, "ri")) GPRnopc:$Rn,
892 t2_so_imm:$imm, pred:$p)>;
893 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"),
894 (!cast<Instruction>(!strconcat(baseOpc, "rs")) GPRnopc:$Rn,
899 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
900 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
901 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
903 def i12 : T2Ii12<(outs target:$Rt), (ins t2addrmode_imm12:$addr), iii,
904 opc, ".w\t$Rt, $addr",
905 [(set target:$Rt, (opnode t2addrmode_imm12:$addr))]> {
908 let Inst{31-25} = 0b1111100;
909 let Inst{24} = signed;
911 let Inst{22-21} = opcod;
912 let Inst{20} = 1; // load
913 let Inst{19-16} = addr{16-13}; // Rn
914 let Inst{15-12} = Rt;
915 let Inst{11-0} = addr{11-0}; // imm
917 def i8 : T2Ii8 <(outs target:$Rt), (ins t2addrmode_negimm8:$addr), iii,
919 [(set target:$Rt, (opnode t2addrmode_negimm8:$addr))]> {
922 let Inst{31-27} = 0b11111;
923 let Inst{26-25} = 0b00;
924 let Inst{24} = signed;
926 let Inst{22-21} = opcod;
927 let Inst{20} = 1; // load
928 let Inst{19-16} = addr{12-9}; // Rn
929 let Inst{15-12} = Rt;
931 // Offset: index==TRUE, wback==FALSE
932 let Inst{10} = 1; // The P bit.
933 let Inst{9} = addr{8}; // U
934 let Inst{8} = 0; // The W bit.
935 let Inst{7-0} = addr{7-0}; // imm
937 def s : T2Iso <(outs target:$Rt), (ins t2addrmode_so_reg:$addr), iis,
938 opc, ".w\t$Rt, $addr",
939 [(set target:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
940 let Inst{31-27} = 0b11111;
941 let Inst{26-25} = 0b00;
942 let Inst{24} = signed;
944 let Inst{22-21} = opcod;
945 let Inst{20} = 1; // load
946 let Inst{11-6} = 0b000000;
949 let Inst{15-12} = Rt;
952 let Inst{19-16} = addr{9-6}; // Rn
953 let Inst{3-0} = addr{5-2}; // Rm
954 let Inst{5-4} = addr{1-0}; // imm
956 let DecoderMethod = "DecodeT2LoadShift";
959 // pci variant is very similar to i12, but supports negative offsets
961 def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
962 opc, ".w\t$Rt, $addr",
963 [(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
964 let isReMaterializable = 1;
965 let Inst{31-27} = 0b11111;
966 let Inst{26-25} = 0b00;
967 let Inst{24} = signed;
968 let Inst{23} = ?; // add = (U == '1')
969 let Inst{22-21} = opcod;
970 let Inst{20} = 1; // load
971 let Inst{19-16} = 0b1111; // Rn
974 let Inst{15-12} = Rt{3-0};
975 let Inst{11-0} = addr{11-0};
979 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
980 multiclass T2I_st<bits<2> opcod, string opc,
981 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
983 def i12 : T2Ii12<(outs), (ins target:$Rt, t2addrmode_imm12:$addr), iii,
984 opc, ".w\t$Rt, $addr",
985 [(opnode target:$Rt, t2addrmode_imm12:$addr)]> {
986 let Inst{31-27} = 0b11111;
987 let Inst{26-23} = 0b0001;
988 let Inst{22-21} = opcod;
989 let Inst{20} = 0; // !load
992 let Inst{15-12} = Rt;
995 let addr{12} = 1; // add = TRUE
996 let Inst{19-16} = addr{16-13}; // Rn
997 let Inst{23} = addr{12}; // U
998 let Inst{11-0} = addr{11-0}; // imm
1000 def i8 : T2Ii8 <(outs), (ins target:$Rt, t2addrmode_negimm8:$addr), iii,
1001 opc, "\t$Rt, $addr",
1002 [(opnode target:$Rt, t2addrmode_negimm8:$addr)]> {
1003 let Inst{31-27} = 0b11111;
1004 let Inst{26-23} = 0b0000;
1005 let Inst{22-21} = opcod;
1006 let Inst{20} = 0; // !load
1008 // Offset: index==TRUE, wback==FALSE
1009 let Inst{10} = 1; // The P bit.
1010 let Inst{8} = 0; // The W bit.
1013 let Inst{15-12} = Rt;
1016 let Inst{19-16} = addr{12-9}; // Rn
1017 let Inst{9} = addr{8}; // U
1018 let Inst{7-0} = addr{7-0}; // imm
1020 def s : T2Iso <(outs), (ins target:$Rt, t2addrmode_so_reg:$addr), iis,
1021 opc, ".w\t$Rt, $addr",
1022 [(opnode target:$Rt, t2addrmode_so_reg:$addr)]> {
1023 let Inst{31-27} = 0b11111;
1024 let Inst{26-23} = 0b0000;
1025 let Inst{22-21} = opcod;
1026 let Inst{20} = 0; // !load
1027 let Inst{11-6} = 0b000000;
1030 let Inst{15-12} = Rt;
1033 let Inst{19-16} = addr{9-6}; // Rn
1034 let Inst{3-0} = addr{5-2}; // Rm
1035 let Inst{5-4} = addr{1-0}; // imm
1039 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
1040 /// register and one whose operand is a register rotated by 8/16/24.
1041 class T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode>
1042 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1043 opc, ".w\t$Rd, $Rm$rot",
1044 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1045 Requires<[IsThumb2]> {
1046 let Inst{31-27} = 0b11111;
1047 let Inst{26-23} = 0b0100;
1048 let Inst{22-20} = opcod;
1049 let Inst{19-16} = 0b1111; // Rn
1050 let Inst{15-12} = 0b1111;
1054 let Inst{5-4} = rot{1-0}; // rotate
1057 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
1058 class T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode>
1059 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot),
1060 IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
1061 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1062 Requires<[HasT2ExtractPack, IsThumb2]> {
1064 let Inst{31-27} = 0b11111;
1065 let Inst{26-23} = 0b0100;
1066 let Inst{22-20} = opcod;
1067 let Inst{19-16} = 0b1111; // Rn
1068 let Inst{15-12} = 0b1111;
1070 let Inst{5-4} = rot;
1073 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1075 class T2I_ext_rrot_sxtb16<bits<3> opcod, string opc>
1076 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1077 opc, "\t$Rd, $Rm$rot", []>,
1078 Requires<[IsThumb2, HasT2ExtractPack]> {
1080 let Inst{31-27} = 0b11111;
1081 let Inst{26-23} = 0b0100;
1082 let Inst{22-20} = opcod;
1083 let Inst{19-16} = 0b1111; // Rn
1084 let Inst{15-12} = 0b1111;
1086 let Inst{5-4} = rot;
1089 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1090 /// register and one whose operand is a register rotated by 8/16/24.
1091 class T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode>
1092 : T2ThreeReg<(outs rGPR:$Rd),
1093 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1094 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot",
1095 [(set rGPR:$Rd, (opnode rGPR:$Rn, (rotr rGPR:$Rm,rot_imm:$rot)))]>,
1096 Requires<[HasT2ExtractPack, IsThumb2]> {
1098 let Inst{31-27} = 0b11111;
1099 let Inst{26-23} = 0b0100;
1100 let Inst{22-20} = opcod;
1101 let Inst{15-12} = 0b1111;
1103 let Inst{5-4} = rot;
1106 class T2I_exta_rrot_np<bits<3> opcod, string opc>
1107 : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm,rot_imm:$rot),
1108 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []> {
1110 let Inst{31-27} = 0b11111;
1111 let Inst{26-23} = 0b0100;
1112 let Inst{22-20} = opcod;
1113 let Inst{15-12} = 0b1111;
1115 let Inst{5-4} = rot;
1118 //===----------------------------------------------------------------------===//
1120 //===----------------------------------------------------------------------===//
1122 //===----------------------------------------------------------------------===//
1123 // Miscellaneous Instructions.
1126 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1127 string asm, list<dag> pattern>
1128 : T2XI<oops, iops, itin, asm, pattern> {
1132 let Inst{11-8} = Rd;
1133 let Inst{26} = label{11};
1134 let Inst{14-12} = label{10-8};
1135 let Inst{7-0} = label{7-0};
1138 // LEApcrel - Load a pc-relative address into a register without offending the
1140 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1141 (ins t2adrlabel:$addr, pred:$p),
1142 IIC_iALUi, "adr{$p}.w\t$Rd, $addr", []> {
1143 let Inst{31-27} = 0b11110;
1144 let Inst{25-24} = 0b10;
1145 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1148 let Inst{19-16} = 0b1111; // Rn
1153 let Inst{11-8} = Rd;
1154 let Inst{23} = addr{12};
1155 let Inst{21} = addr{12};
1156 let Inst{26} = addr{11};
1157 let Inst{14-12} = addr{10-8};
1158 let Inst{7-0} = addr{7-0};
1160 let DecoderMethod = "DecodeT2Adr";
1163 let neverHasSideEffects = 1, isReMaterializable = 1 in
1164 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1166 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1167 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1172 //===----------------------------------------------------------------------===//
1173 // Load / store Instructions.
1177 let canFoldAsLoad = 1, isReMaterializable = 1 in
1178 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si, GPR,
1179 UnOpFrag<(load node:$Src)>>;
1181 // Loads with zero extension
1182 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1183 rGPR, UnOpFrag<(zextloadi16 node:$Src)>>;
1184 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1185 rGPR, UnOpFrag<(zextloadi8 node:$Src)>>;
1187 // Loads with sign extension
1188 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1189 rGPR, UnOpFrag<(sextloadi16 node:$Src)>>;
1190 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1191 rGPR, UnOpFrag<(sextloadi8 node:$Src)>>;
1193 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1195 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1196 (ins t2addrmode_imm8s4:$addr),
1197 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", "", []>;
1198 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1200 // zextload i1 -> zextload i8
1201 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1202 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1203 def : T2Pat<(zextloadi1 t2addrmode_negimm8:$addr),
1204 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1205 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1206 (t2LDRBs t2addrmode_so_reg:$addr)>;
1207 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1208 (t2LDRBpci tconstpool:$addr)>;
1210 // extload -> zextload
1211 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1213 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1214 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1215 def : T2Pat<(extloadi1 t2addrmode_negimm8:$addr),
1216 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1217 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1218 (t2LDRBs t2addrmode_so_reg:$addr)>;
1219 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1220 (t2LDRBpci tconstpool:$addr)>;
1222 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1223 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1224 def : T2Pat<(extloadi8 t2addrmode_negimm8:$addr),
1225 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1226 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1227 (t2LDRBs t2addrmode_so_reg:$addr)>;
1228 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1229 (t2LDRBpci tconstpool:$addr)>;
1231 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1232 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1233 def : T2Pat<(extloadi16 t2addrmode_negimm8:$addr),
1234 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
1235 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1236 (t2LDRHs t2addrmode_so_reg:$addr)>;
1237 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1238 (t2LDRHpci tconstpool:$addr)>;
1240 // FIXME: The destination register of the loads and stores can't be PC, but
1241 // can be SP. We need another regclass (similar to rGPR) to represent
1242 // that. Not a pressing issue since these are selected manually,
1247 let mayLoad = 1, neverHasSideEffects = 1 in {
1248 def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1249 (ins t2addrmode_imm8:$addr),
1250 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1251 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1253 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1256 def t2LDR_POST : T2Ipostldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1257 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1258 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1259 "ldr", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1261 def t2LDRB_PRE : T2Ipreldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1262 (ins t2addrmode_imm8:$addr),
1263 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1264 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1266 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1268 def t2LDRB_POST : T2Ipostldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1269 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1270 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1271 "ldrb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1273 def t2LDRH_PRE : T2Ipreldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1274 (ins t2addrmode_imm8:$addr),
1275 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1276 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1278 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1280 def t2LDRH_POST : T2Ipostldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1281 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1282 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1283 "ldrh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1285 def t2LDRSB_PRE : T2Ipreldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1286 (ins t2addrmode_imm8:$addr),
1287 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1288 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1290 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1292 def t2LDRSB_POST : T2Ipostldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1293 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1294 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1295 "ldrsb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1297 def t2LDRSH_PRE : T2Ipreldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1298 (ins t2addrmode_imm8:$addr),
1299 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1300 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1302 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1304 def t2LDRSH_POST : T2Ipostldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1305 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1306 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1307 "ldrsh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1308 } // mayLoad = 1, neverHasSideEffects = 1
1310 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110).
1311 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1312 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1313 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_posimm8:$addr), ii, opc,
1314 "\t$Rt, $addr", []> {
1317 let Inst{31-27} = 0b11111;
1318 let Inst{26-25} = 0b00;
1319 let Inst{24} = signed;
1321 let Inst{22-21} = type;
1322 let Inst{20} = 1; // load
1323 let Inst{19-16} = addr{12-9};
1324 let Inst{15-12} = Rt;
1326 let Inst{10-8} = 0b110; // PUW.
1327 let Inst{7-0} = addr{7-0};
1330 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1331 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1332 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1333 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1334 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1337 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si, GPR,
1338 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1339 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1340 rGPR, BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1341 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1342 rGPR, BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1345 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1346 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1347 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1348 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", "", []>;
1352 let mayStore = 1, neverHasSideEffects = 1 in {
1353 def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
1354 (ins GPRnopc:$Rt, t2addrmode_imm8:$addr),
1355 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1356 "str", "\t$Rt, $addr!",
1357 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1358 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1360 def t2STRH_PRE : T2Ipreldst<0, 0b01, 0, 1, (outs GPRnopc:$Rn_wb),
1361 (ins rGPR:$Rt, t2addrmode_imm8:$addr),
1362 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1363 "strh", "\t$Rt, $addr!",
1364 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1365 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1368 def t2STRB_PRE : T2Ipreldst<0, 0b00, 0, 1, (outs GPRnopc:$Rn_wb),
1369 (ins rGPR:$Rt, t2addrmode_imm8:$addr),
1370 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1371 "strb", "\t$Rt, $addr!",
1372 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1373 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1375 } // mayStore = 1, neverHasSideEffects = 1
1377 def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
1378 (ins GPRnopc:$Rt, addr_offset_none:$Rn,
1379 t2am_imm8_offset:$offset),
1380 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1381 "str", "\t$Rt, $Rn$offset",
1382 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1383 [(set GPRnopc:$Rn_wb,
1384 (post_store GPRnopc:$Rt, addr_offset_none:$Rn,
1385 t2am_imm8_offset:$offset))]>;
1387 def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb),
1388 (ins rGPR:$Rt, addr_offset_none:$Rn,
1389 t2am_imm8_offset:$offset),
1390 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1391 "strh", "\t$Rt, $Rn$offset",
1392 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1393 [(set GPRnopc:$Rn_wb,
1394 (post_truncsti16 rGPR:$Rt, addr_offset_none:$Rn,
1395 t2am_imm8_offset:$offset))]>;
1397 def t2STRB_POST : T2Ipostldst<0, 0b00, 0, 0, (outs GPRnopc:$Rn_wb),
1398 (ins rGPR:$Rt, addr_offset_none:$Rn,
1399 t2am_imm8_offset:$offset),
1400 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1401 "strb", "\t$Rt, $Rn$offset",
1402 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1403 [(set GPRnopc:$Rn_wb,
1404 (post_truncsti8 rGPR:$Rt, addr_offset_none:$Rn,
1405 t2am_imm8_offset:$offset))]>;
1407 // Pseudo-instructions for pattern matching the pre-indexed stores. We can't
1408 // put the patterns on the instruction definitions directly as ISel wants
1409 // the address base and offset to be separate operands, not a single
1410 // complex operand like we represent the instructions themselves. The
1411 // pseudos map between the two.
1412 let usesCustomInserter = 1,
1413 Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in {
1414 def t2STR_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1415 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1417 [(set GPRnopc:$Rn_wb,
1418 (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1419 def t2STRB_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1420 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1422 [(set GPRnopc:$Rn_wb,
1423 (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1424 def t2STRH_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1425 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1427 [(set GPRnopc:$Rn_wb,
1428 (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1431 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1433 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1434 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1435 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1436 "\t$Rt, $addr", []> {
1437 let Inst{31-27} = 0b11111;
1438 let Inst{26-25} = 0b00;
1439 let Inst{24} = 0; // not signed
1441 let Inst{22-21} = type;
1442 let Inst{20} = 0; // store
1444 let Inst{10-8} = 0b110; // PUW
1448 let Inst{15-12} = Rt;
1449 let Inst{19-16} = addr{12-9};
1450 let Inst{7-0} = addr{7-0};
1453 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1454 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1455 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1457 // ldrd / strd pre / post variants
1458 // For disassembly only.
1460 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1461 (ins t2addrmode_imm8s4:$addr), IIC_iLoad_d_ru,
1462 "ldrd", "\t$Rt, $Rt2, $addr!", "$addr.base = $wb", []> {
1463 let AsmMatchConverter = "cvtT2LdrdPre";
1464 let DecoderMethod = "DecodeT2LDRDPreInstruction";
1467 def t2LDRD_POST : T2Ii8s4post<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1468 (ins addr_offset_none:$addr, t2am_imm8s4_offset:$imm),
1469 IIC_iLoad_d_ru, "ldrd", "\t$Rt, $Rt2, $addr$imm",
1470 "$addr.base = $wb", []>;
1472 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs GPR:$wb),
1473 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4:$addr),
1474 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr!",
1475 "$addr.base = $wb", []> {
1476 let AsmMatchConverter = "cvtT2StrdPre";
1477 let DecoderMethod = "DecodeT2STRDPreInstruction";
1480 def t2STRD_POST : T2Ii8s4post<0, 1, 0, (outs GPR:$wb),
1481 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr,
1482 t2am_imm8s4_offset:$imm),
1483 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr$imm",
1484 "$addr.base = $wb", []>;
1486 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1487 // data/instruction access.
1488 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1489 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1490 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1492 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1494 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1495 let Inst{31-25} = 0b1111100;
1496 let Inst{24} = instr;
1498 let Inst{21} = write;
1500 let Inst{15-12} = 0b1111;
1503 let addr{12} = 1; // add = TRUE
1504 let Inst{19-16} = addr{16-13}; // Rn
1505 let Inst{23} = addr{12}; // U
1506 let Inst{11-0} = addr{11-0}; // imm12
1509 def i8 : T2Ii8<(outs), (ins t2addrmode_negimm8:$addr), IIC_Preload, opc,
1511 [(ARMPreload t2addrmode_negimm8:$addr, (i32 write), (i32 instr))]> {
1512 let Inst{31-25} = 0b1111100;
1513 let Inst{24} = instr;
1514 let Inst{23} = 0; // U = 0
1516 let Inst{21} = write;
1518 let Inst{15-12} = 0b1111;
1519 let Inst{11-8} = 0b1100;
1522 let Inst{19-16} = addr{12-9}; // Rn
1523 let Inst{7-0} = addr{7-0}; // imm8
1526 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1528 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1529 let Inst{31-25} = 0b1111100;
1530 let Inst{24} = instr;
1531 let Inst{23} = 0; // add = TRUE for T1
1533 let Inst{21} = write;
1535 let Inst{15-12} = 0b1111;
1536 let Inst{11-6} = 0000000;
1539 let Inst{19-16} = addr{9-6}; // Rn
1540 let Inst{3-0} = addr{5-2}; // Rm
1541 let Inst{5-4} = addr{1-0}; // imm2
1543 let DecoderMethod = "DecodeT2LoadShift";
1545 // FIXME: We should have a separate 'pci' variant here. As-is we represent
1546 // it via the i12 variant, which it's related to, but that means we can
1547 // represent negative immediates, which aren't legal for anything except
1548 // the 'pci' case (Rn == 15).
1551 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1552 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1553 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1555 //===----------------------------------------------------------------------===//
1556 // Load / store multiple Instructions.
1559 multiclass thumb2_ld_mult<string asm, InstrItinClass itin,
1560 InstrItinClass itin_upd, bit L_bit> {
1562 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1563 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1567 let Inst{31-27} = 0b11101;
1568 let Inst{26-25} = 0b00;
1569 let Inst{24-23} = 0b01; // Increment After
1571 let Inst{21} = 0; // No writeback
1572 let Inst{20} = L_bit;
1573 let Inst{19-16} = Rn;
1574 let Inst{15-0} = regs;
1577 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1578 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1582 let Inst{31-27} = 0b11101;
1583 let Inst{26-25} = 0b00;
1584 let Inst{24-23} = 0b01; // Increment After
1586 let Inst{21} = 1; // Writeback
1587 let Inst{20} = L_bit;
1588 let Inst{19-16} = Rn;
1589 let Inst{15-0} = regs;
1592 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1593 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1597 let Inst{31-27} = 0b11101;
1598 let Inst{26-25} = 0b00;
1599 let Inst{24-23} = 0b10; // Decrement Before
1601 let Inst{21} = 0; // No writeback
1602 let Inst{20} = L_bit;
1603 let Inst{19-16} = Rn;
1604 let Inst{15-0} = regs;
1607 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1608 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1612 let Inst{31-27} = 0b11101;
1613 let Inst{26-25} = 0b00;
1614 let Inst{24-23} = 0b10; // Decrement Before
1616 let Inst{21} = 1; // Writeback
1617 let Inst{20} = L_bit;
1618 let Inst{19-16} = Rn;
1619 let Inst{15-0} = regs;
1623 let neverHasSideEffects = 1 in {
1625 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1626 defm t2LDM : thumb2_ld_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1628 multiclass thumb2_st_mult<string asm, InstrItinClass itin,
1629 InstrItinClass itin_upd, bit L_bit> {
1631 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1632 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1636 let Inst{31-27} = 0b11101;
1637 let Inst{26-25} = 0b00;
1638 let Inst{24-23} = 0b01; // Increment After
1640 let Inst{21} = 0; // No writeback
1641 let Inst{20} = L_bit;
1642 let Inst{19-16} = Rn;
1644 let Inst{14} = regs{14};
1646 let Inst{12-0} = regs{12-0};
1649 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1650 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1654 let Inst{31-27} = 0b11101;
1655 let Inst{26-25} = 0b00;
1656 let Inst{24-23} = 0b01; // Increment After
1658 let Inst{21} = 1; // Writeback
1659 let Inst{20} = L_bit;
1660 let Inst{19-16} = Rn;
1662 let Inst{14} = regs{14};
1664 let Inst{12-0} = regs{12-0};
1667 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1668 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1672 let Inst{31-27} = 0b11101;
1673 let Inst{26-25} = 0b00;
1674 let Inst{24-23} = 0b10; // Decrement Before
1676 let Inst{21} = 0; // No writeback
1677 let Inst{20} = L_bit;
1678 let Inst{19-16} = Rn;
1680 let Inst{14} = regs{14};
1682 let Inst{12-0} = regs{12-0};
1685 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1686 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1690 let Inst{31-27} = 0b11101;
1691 let Inst{26-25} = 0b00;
1692 let Inst{24-23} = 0b10; // Decrement Before
1694 let Inst{21} = 1; // Writeback
1695 let Inst{20} = L_bit;
1696 let Inst{19-16} = Rn;
1698 let Inst{14} = regs{14};
1700 let Inst{12-0} = regs{12-0};
1705 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1706 defm t2STM : thumb2_st_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1708 } // neverHasSideEffects
1711 //===----------------------------------------------------------------------===//
1712 // Move Instructions.
1715 let neverHasSideEffects = 1 in
1716 def t2MOVr : T2sTwoReg<(outs GPRnopc:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1717 "mov", ".w\t$Rd, $Rm", []> {
1718 let Inst{31-27} = 0b11101;
1719 let Inst{26-25} = 0b01;
1720 let Inst{24-21} = 0b0010;
1721 let Inst{19-16} = 0b1111; // Rn
1722 let Inst{14-12} = 0b000;
1723 let Inst{7-4} = 0b0000;
1725 def : t2InstAlias<"mov${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1726 pred:$p, zero_reg)>;
1727 def : t2InstAlias<"movs${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1729 def : t2InstAlias<"movs${p} $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1732 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1733 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1734 AddedComplexity = 1 in
1735 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1736 "mov", ".w\t$Rd, $imm",
1737 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1738 let Inst{31-27} = 0b11110;
1740 let Inst{24-21} = 0b0010;
1741 let Inst{19-16} = 0b1111; // Rn
1745 // cc_out is handled as part of the explicit mnemonic in the parser for 'mov'.
1746 // Use aliases to get that to play nice here.
1747 def : t2InstAlias<"movs${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1749 def : t2InstAlias<"movs${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1752 def : t2InstAlias<"mov${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1753 pred:$p, zero_reg)>;
1754 def : t2InstAlias<"mov${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1755 pred:$p, zero_reg)>;
1757 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1758 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
1759 "movw", "\t$Rd, $imm",
1760 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1761 let Inst{31-27} = 0b11110;
1763 let Inst{24-21} = 0b0010;
1764 let Inst{20} = 0; // The S bit.
1770 let Inst{11-8} = Rd;
1771 let Inst{19-16} = imm{15-12};
1772 let Inst{26} = imm{11};
1773 let Inst{14-12} = imm{10-8};
1774 let Inst{7-0} = imm{7-0};
1775 let DecoderMethod = "DecodeT2MOVTWInstruction";
1778 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1779 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1781 let Constraints = "$src = $Rd" in {
1782 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1783 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
1784 "movt", "\t$Rd, $imm",
1786 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1787 let Inst{31-27} = 0b11110;
1789 let Inst{24-21} = 0b0110;
1790 let Inst{20} = 0; // The S bit.
1796 let Inst{11-8} = Rd;
1797 let Inst{19-16} = imm{15-12};
1798 let Inst{26} = imm{11};
1799 let Inst{14-12} = imm{10-8};
1800 let Inst{7-0} = imm{7-0};
1801 let DecoderMethod = "DecodeT2MOVTWInstruction";
1804 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1805 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1808 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1810 //===----------------------------------------------------------------------===//
1811 // Extend Instructions.
1816 def t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1817 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1818 def t2SXTH : T2I_ext_rrot<0b000, "sxth",
1819 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1820 def t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1822 def t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1823 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1824 def t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1825 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1826 def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
1830 let AddedComplexity = 16 in {
1831 def t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1832 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1833 def t2UXTH : T2I_ext_rrot<0b001, "uxth",
1834 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1835 def t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1836 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1838 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1839 // The transformation should probably be done as a combiner action
1840 // instead so we can include a check for masking back in the upper
1841 // eight bits of the source into the lower eight bits of the result.
1842 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1843 // (t2UXTB16 rGPR:$Src, 3)>,
1844 // Requires<[HasT2ExtractPack, IsThumb2]>;
1845 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1846 (t2UXTB16 rGPR:$Src, 1)>,
1847 Requires<[HasT2ExtractPack, IsThumb2]>;
1849 def t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1850 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1851 def t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1852 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1853 def t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">;
1856 //===----------------------------------------------------------------------===//
1857 // Arithmetic Instructions.
1860 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1861 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1862 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1863 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1865 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1867 // Currently, t2ADDS/t2SUBS are pseudo opcodes that exist only in the
1868 // selection DAG. They are "lowered" to real t2ADD/t2SUB opcodes by
1869 // AdjustInstrPostInstrSelection where we determine whether or not to
1870 // set the "s" bit based on CPSR liveness.
1872 // FIXME: Eliminate t2ADDS/t2SUBS pseudo opcodes after adding tablegen
1873 // support for an optional CPSR definition that corresponds to the DAG
1874 // node's second value. We can then eliminate the implicit def of CPSR.
1875 defm t2ADDS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1876 BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>;
1877 defm t2SUBS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1878 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1880 let hasPostISelHook = 1 in {
1881 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1882 BinOpWithFlagFrag<(ARMadde node:$LHS, node:$RHS, node:$FLAG)>, 1>;
1883 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1884 BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>>;
1888 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1889 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1891 // FIXME: Eliminate them if we can write def : Pat patterns which defines
1892 // CPSR and the implicit def of CPSR is not needed.
1893 defm t2RSBS : T2I_rbin_s_is <BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1895 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1896 // The assume-no-carry-in form uses the negation of the input since add/sub
1897 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1898 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1900 // The AddedComplexity preferences the first variant over the others since
1901 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1902 let AddedComplexity = 1 in
1903 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1904 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1905 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1906 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1907 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1908 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1909 let AddedComplexity = 1 in
1910 def : T2Pat<(ARMaddc rGPR:$src, imm0_255_neg:$imm),
1911 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1912 def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm),
1913 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1914 // The with-carry-in form matches bitwise not instead of the negation.
1915 // Effectively, the inverse interpretation of the carry flag already accounts
1916 // for part of the negation.
1917 let AddedComplexity = 1 in
1918 def : T2Pat<(ARMadde rGPR:$src, imm0_255_not:$imm, CPSR),
1919 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
1920 def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR),
1921 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
1923 // Select Bytes -- for disassembly only
1925 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1926 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []>,
1927 Requires<[IsThumb2, HasThumb2DSP]> {
1928 let Inst{31-27} = 0b11111;
1929 let Inst{26-24} = 0b010;
1931 let Inst{22-20} = 0b010;
1932 let Inst{15-12} = 0b1111;
1934 let Inst{6-4} = 0b000;
1937 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1938 // And Miscellaneous operations -- for disassembly only
1939 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1940 list<dag> pat = [/* For disassembly only; pattern left blank */],
1941 dag iops = (ins rGPR:$Rn, rGPR:$Rm),
1942 string asm = "\t$Rd, $Rn, $Rm">
1943 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
1944 Requires<[IsThumb2, HasThumb2DSP]> {
1945 let Inst{31-27} = 0b11111;
1946 let Inst{26-23} = 0b0101;
1947 let Inst{22-20} = op22_20;
1948 let Inst{15-12} = 0b1111;
1949 let Inst{7-4} = op7_4;
1955 let Inst{11-8} = Rd;
1956 let Inst{19-16} = Rn;
1960 // Saturating add/subtract -- for disassembly only
1962 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1963 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))],
1964 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1965 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1966 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1967 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1968 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [],
1969 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1970 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [],
1971 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1972 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1973 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1974 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))],
1975 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1976 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1977 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1978 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1979 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1980 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1981 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1982 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1983 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1985 // Signed/Unsigned add/subtract -- for disassembly only
1987 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1988 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1989 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1990 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1991 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1992 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1993 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1994 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1995 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1996 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1997 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1998 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
2000 // Signed/Unsigned halving add/subtract -- for disassembly only
2002 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
2003 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
2004 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
2005 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
2006 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
2007 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
2008 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
2009 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
2010 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
2011 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
2012 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
2013 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
2015 // Helper class for disassembly only
2016 // A6.3.16 & A6.3.17
2017 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
2018 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2019 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2020 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2021 let Inst{31-27} = 0b11111;
2022 let Inst{26-24} = 0b011;
2023 let Inst{23} = long;
2024 let Inst{22-20} = op22_20;
2025 let Inst{7-4} = op7_4;
2028 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2029 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2030 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
2031 let Inst{31-27} = 0b11111;
2032 let Inst{26-24} = 0b011;
2033 let Inst{23} = long;
2034 let Inst{22-20} = op22_20;
2035 let Inst{7-4} = op7_4;
2038 // Unsigned Sum of Absolute Differences [and Accumulate].
2039 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2040 (ins rGPR:$Rn, rGPR:$Rm),
2041 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>,
2042 Requires<[IsThumb2, HasThumb2DSP]> {
2043 let Inst{15-12} = 0b1111;
2045 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2046 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
2047 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>,
2048 Requires<[IsThumb2, HasThumb2DSP]>;
2050 // Signed/Unsigned saturate.
2051 class T2SatI<dag oops, dag iops, InstrItinClass itin,
2052 string opc, string asm, list<dag> pattern>
2053 : T2I<oops, iops, itin, opc, asm, pattern> {
2059 let Inst{11-8} = Rd;
2060 let Inst{19-16} = Rn;
2061 let Inst{4-0} = sat_imm;
2062 let Inst{21} = sh{5};
2063 let Inst{14-12} = sh{4-2};
2064 let Inst{7-6} = sh{1-0};
2069 (ins imm1_32:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2070 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2071 let Inst{31-27} = 0b11110;
2072 let Inst{25-22} = 0b1100;
2078 def t2SSAT16: T2SatI<
2079 (outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary,
2080 "ssat16", "\t$Rd, $sat_imm, $Rn", []>,
2081 Requires<[IsThumb2, HasThumb2DSP]> {
2082 let Inst{31-27} = 0b11110;
2083 let Inst{25-22} = 0b1100;
2086 let Inst{21} = 1; // sh = '1'
2087 let Inst{14-12} = 0b000; // imm3 = '000'
2088 let Inst{7-6} = 0b00; // imm2 = '00'
2089 let Inst{5-4} = 0b00;
2094 (ins imm0_31:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2095 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2096 let Inst{31-27} = 0b11110;
2097 let Inst{25-22} = 0b1110;
2102 def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins imm0_15:$sat_imm, rGPR:$Rn),
2104 "usat16", "\t$Rd, $sat_imm, $Rn", []>,
2105 Requires<[IsThumb2, HasThumb2DSP]> {
2106 let Inst{31-22} = 0b1111001110;
2109 let Inst{21} = 1; // sh = '1'
2110 let Inst{14-12} = 0b000; // imm3 = '000'
2111 let Inst{7-6} = 0b00; // imm2 = '00'
2112 let Inst{5-4} = 0b00;
2115 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2116 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2118 //===----------------------------------------------------------------------===//
2119 // Shift and rotate Instructions.
2122 defm t2LSL : T2I_sh_ir<0b00, "lsl", imm0_31,
2123 BinOpFrag<(shl node:$LHS, node:$RHS)>, "t2LSL">;
2124 defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr,
2125 BinOpFrag<(srl node:$LHS, node:$RHS)>, "t2LSR">;
2126 defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr,
2127 BinOpFrag<(sra node:$LHS, node:$RHS)>, "t2ASR">;
2128 defm t2ROR : T2I_sh_ir<0b11, "ror", imm0_31,
2129 BinOpFrag<(rotr node:$LHS, node:$RHS)>, "t2ROR">;
2131 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
2132 def : Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
2133 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
2135 let Uses = [CPSR] in {
2136 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2137 "rrx", "\t$Rd, $Rm",
2138 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
2139 let Inst{31-27} = 0b11101;
2140 let Inst{26-25} = 0b01;
2141 let Inst{24-21} = 0b0010;
2142 let Inst{19-16} = 0b1111; // Rn
2143 let Inst{14-12} = 0b000;
2144 let Inst{7-4} = 0b0011;
2148 let isCodeGenOnly = 1, Defs = [CPSR] in {
2149 def t2MOVsrl_flag : T2TwoRegShiftImm<
2150 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2151 "lsrs", ".w\t$Rd, $Rm, #1",
2152 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2153 let Inst{31-27} = 0b11101;
2154 let Inst{26-25} = 0b01;
2155 let Inst{24-21} = 0b0010;
2156 let Inst{20} = 1; // The S bit.
2157 let Inst{19-16} = 0b1111; // Rn
2158 let Inst{5-4} = 0b01; // Shift type.
2159 // Shift amount = Inst{14-12:7-6} = 1.
2160 let Inst{14-12} = 0b000;
2161 let Inst{7-6} = 0b01;
2163 def t2MOVsra_flag : T2TwoRegShiftImm<
2164 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2165 "asrs", ".w\t$Rd, $Rm, #1",
2166 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2167 let Inst{31-27} = 0b11101;
2168 let Inst{26-25} = 0b01;
2169 let Inst{24-21} = 0b0010;
2170 let Inst{20} = 1; // The S bit.
2171 let Inst{19-16} = 0b1111; // Rn
2172 let Inst{5-4} = 0b10; // Shift type.
2173 // Shift amount = Inst{14-12:7-6} = 1.
2174 let Inst{14-12} = 0b000;
2175 let Inst{7-6} = 0b01;
2179 //===----------------------------------------------------------------------===//
2180 // Bitwise Instructions.
2183 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2184 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2185 BinOpFrag<(and node:$LHS, node:$RHS)>, "t2AND", 1>;
2186 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2187 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2188 BinOpFrag<(or node:$LHS, node:$RHS)>, "t2ORR", 1>;
2189 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2190 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2191 BinOpFrag<(xor node:$LHS, node:$RHS)>, "t2EOR", 1>;
2193 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2194 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2195 BinOpFrag<(and node:$LHS, (not node:$RHS))>,
2198 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2199 string opc, string asm, list<dag> pattern>
2200 : T2I<oops, iops, itin, opc, asm, pattern> {
2205 let Inst{11-8} = Rd;
2206 let Inst{4-0} = msb{4-0};
2207 let Inst{14-12} = lsb{4-2};
2208 let Inst{7-6} = lsb{1-0};
2211 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2212 string opc, string asm, list<dag> pattern>
2213 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2216 let Inst{19-16} = Rn;
2219 let Constraints = "$src = $Rd" in
2220 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2221 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2222 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2223 let Inst{31-27} = 0b11110;
2224 let Inst{26} = 0; // should be 0.
2226 let Inst{24-20} = 0b10110;
2227 let Inst{19-16} = 0b1111; // Rn
2229 let Inst{5} = 0; // should be 0.
2232 let msb{4-0} = imm{9-5};
2233 let lsb{4-0} = imm{4-0};
2236 def t2SBFX: T2TwoRegBitFI<
2237 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2238 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2239 let Inst{31-27} = 0b11110;
2241 let Inst{24-20} = 0b10100;
2245 def t2UBFX: T2TwoRegBitFI<
2246 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2247 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2248 let Inst{31-27} = 0b11110;
2250 let Inst{24-20} = 0b11100;
2254 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2255 let Constraints = "$src = $Rd" in {
2256 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2257 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2258 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2259 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2260 bf_inv_mask_imm:$imm))]> {
2261 let Inst{31-27} = 0b11110;
2262 let Inst{26} = 0; // should be 0.
2264 let Inst{24-20} = 0b10110;
2266 let Inst{5} = 0; // should be 0.
2269 let msb{4-0} = imm{9-5};
2270 let lsb{4-0} = imm{4-0};
2274 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2275 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2276 BinOpFrag<(or node:$LHS, (not node:$RHS))>,
2279 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
2280 /// unary operation that produces a value. These are predicable and can be
2281 /// changed to modify CPSR.
2282 multiclass T2I_un_irs<bits<4> opcod, string opc,
2283 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
2284 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
2286 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
2288 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
2289 let isAsCheapAsAMove = Cheap;
2290 let isReMaterializable = ReMat;
2291 let Inst{31-27} = 0b11110;
2293 let Inst{24-21} = opcod;
2294 let Inst{19-16} = 0b1111; // Rn
2298 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
2299 opc, ".w\t$Rd, $Rm",
2300 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
2301 let Inst{31-27} = 0b11101;
2302 let Inst{26-25} = 0b01;
2303 let Inst{24-21} = opcod;
2304 let Inst{19-16} = 0b1111; // Rn
2305 let Inst{14-12} = 0b000; // imm3
2306 let Inst{7-6} = 0b00; // imm2
2307 let Inst{5-4} = 0b00; // type
2310 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
2311 opc, ".w\t$Rd, $ShiftedRm",
2312 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
2313 let Inst{31-27} = 0b11101;
2314 let Inst{26-25} = 0b01;
2315 let Inst{24-21} = opcod;
2316 let Inst{19-16} = 0b1111; // Rn
2320 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2321 let AddedComplexity = 1 in
2322 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2323 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2324 UnOpFrag<(not node:$Src)>, 1, 1>;
2326 let AddedComplexity = 1 in
2327 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2328 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2330 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2331 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2332 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2333 Requires<[IsThumb2]>;
2335 def : T2Pat<(t2_so_imm_not:$src),
2336 (t2MVNi t2_so_imm_not:$src)>;
2338 //===----------------------------------------------------------------------===//
2339 // Multiply Instructions.
2341 let isCommutable = 1 in
2342 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2343 "mul", "\t$Rd, $Rn, $Rm",
2344 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2345 let Inst{31-27} = 0b11111;
2346 let Inst{26-23} = 0b0110;
2347 let Inst{22-20} = 0b000;
2348 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2349 let Inst{7-4} = 0b0000; // Multiply
2352 def t2MLA: T2FourReg<
2353 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2354 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2355 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2356 let Inst{31-27} = 0b11111;
2357 let Inst{26-23} = 0b0110;
2358 let Inst{22-20} = 0b000;
2359 let Inst{7-4} = 0b0000; // Multiply
2362 def t2MLS: T2FourReg<
2363 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2364 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2365 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2366 let Inst{31-27} = 0b11111;
2367 let Inst{26-23} = 0b0110;
2368 let Inst{22-20} = 0b000;
2369 let Inst{7-4} = 0b0001; // Multiply and Subtract
2372 // Extra precision multiplies with low / high results
2373 let neverHasSideEffects = 1 in {
2374 let isCommutable = 1 in {
2375 def t2SMULL : T2MulLong<0b000, 0b0000,
2376 (outs rGPR:$RdLo, rGPR:$RdHi),
2377 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2378 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2380 def t2UMULL : T2MulLong<0b010, 0b0000,
2381 (outs rGPR:$RdLo, rGPR:$RdHi),
2382 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2383 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2386 // Multiply + accumulate
2387 def t2SMLAL : T2MulLong<0b100, 0b0000,
2388 (outs rGPR:$RdLo, rGPR:$RdHi),
2389 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2390 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2392 def t2UMLAL : T2MulLong<0b110, 0b0000,
2393 (outs rGPR:$RdLo, rGPR:$RdHi),
2394 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2395 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2397 def t2UMAAL : T2MulLong<0b110, 0b0110,
2398 (outs rGPR:$RdLo, rGPR:$RdHi),
2399 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2400 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2401 Requires<[IsThumb2, HasThumb2DSP]>;
2402 } // neverHasSideEffects
2404 // Rounding variants of the below included for disassembly only
2406 // Most significant word multiply
2407 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2408 "smmul", "\t$Rd, $Rn, $Rm",
2409 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]>,
2410 Requires<[IsThumb2, HasThumb2DSP]> {
2411 let Inst{31-27} = 0b11111;
2412 let Inst{26-23} = 0b0110;
2413 let Inst{22-20} = 0b101;
2414 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2415 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2418 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2419 "smmulr", "\t$Rd, $Rn, $Rm", []>,
2420 Requires<[IsThumb2, HasThumb2DSP]> {
2421 let Inst{31-27} = 0b11111;
2422 let Inst{26-23} = 0b0110;
2423 let Inst{22-20} = 0b101;
2424 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2425 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2428 def t2SMMLA : T2FourReg<
2429 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2430 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2431 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>,
2432 Requires<[IsThumb2, HasThumb2DSP]> {
2433 let Inst{31-27} = 0b11111;
2434 let Inst{26-23} = 0b0110;
2435 let Inst{22-20} = 0b101;
2436 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2439 def t2SMMLAR: T2FourReg<
2440 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2441 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
2442 Requires<[IsThumb2, HasThumb2DSP]> {
2443 let Inst{31-27} = 0b11111;
2444 let Inst{26-23} = 0b0110;
2445 let Inst{22-20} = 0b101;
2446 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2449 def t2SMMLS: T2FourReg<
2450 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2451 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2452 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>,
2453 Requires<[IsThumb2, HasThumb2DSP]> {
2454 let Inst{31-27} = 0b11111;
2455 let Inst{26-23} = 0b0110;
2456 let Inst{22-20} = 0b110;
2457 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2460 def t2SMMLSR:T2FourReg<
2461 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2462 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
2463 Requires<[IsThumb2, HasThumb2DSP]> {
2464 let Inst{31-27} = 0b11111;
2465 let Inst{26-23} = 0b0110;
2466 let Inst{22-20} = 0b110;
2467 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2470 multiclass T2I_smul<string opc, PatFrag opnode> {
2471 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2472 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2473 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2474 (sext_inreg rGPR:$Rm, i16)))]>,
2475 Requires<[IsThumb2, HasThumb2DSP]> {
2476 let Inst{31-27} = 0b11111;
2477 let Inst{26-23} = 0b0110;
2478 let Inst{22-20} = 0b001;
2479 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2480 let Inst{7-6} = 0b00;
2481 let Inst{5-4} = 0b00;
2484 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2485 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2486 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2487 (sra rGPR:$Rm, (i32 16))))]>,
2488 Requires<[IsThumb2, HasThumb2DSP]> {
2489 let Inst{31-27} = 0b11111;
2490 let Inst{26-23} = 0b0110;
2491 let Inst{22-20} = 0b001;
2492 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2493 let Inst{7-6} = 0b00;
2494 let Inst{5-4} = 0b01;
2497 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2498 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2499 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2500 (sext_inreg rGPR:$Rm, i16)))]>,
2501 Requires<[IsThumb2, HasThumb2DSP]> {
2502 let Inst{31-27} = 0b11111;
2503 let Inst{26-23} = 0b0110;
2504 let Inst{22-20} = 0b001;
2505 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2506 let Inst{7-6} = 0b00;
2507 let Inst{5-4} = 0b10;
2510 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2511 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2512 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2513 (sra rGPR:$Rm, (i32 16))))]>,
2514 Requires<[IsThumb2, HasThumb2DSP]> {
2515 let Inst{31-27} = 0b11111;
2516 let Inst{26-23} = 0b0110;
2517 let Inst{22-20} = 0b001;
2518 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2519 let Inst{7-6} = 0b00;
2520 let Inst{5-4} = 0b11;
2523 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2524 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2525 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2526 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]>,
2527 Requires<[IsThumb2, HasThumb2DSP]> {
2528 let Inst{31-27} = 0b11111;
2529 let Inst{26-23} = 0b0110;
2530 let Inst{22-20} = 0b011;
2531 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2532 let Inst{7-6} = 0b00;
2533 let Inst{5-4} = 0b00;
2536 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2537 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2538 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2539 (sra rGPR:$Rm, (i32 16))), (i32 16)))]>,
2540 Requires<[IsThumb2, HasThumb2DSP]> {
2541 let Inst{31-27} = 0b11111;
2542 let Inst{26-23} = 0b0110;
2543 let Inst{22-20} = 0b011;
2544 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2545 let Inst{7-6} = 0b00;
2546 let Inst{5-4} = 0b01;
2551 multiclass T2I_smla<string opc, PatFrag opnode> {
2553 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2554 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2555 [(set rGPR:$Rd, (add rGPR:$Ra,
2556 (opnode (sext_inreg rGPR:$Rn, i16),
2557 (sext_inreg rGPR:$Rm, i16))))]>,
2558 Requires<[IsThumb2, HasThumb2DSP]> {
2559 let Inst{31-27} = 0b11111;
2560 let Inst{26-23} = 0b0110;
2561 let Inst{22-20} = 0b001;
2562 let Inst{7-6} = 0b00;
2563 let Inst{5-4} = 0b00;
2567 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2568 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2569 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2570 (sra rGPR:$Rm, (i32 16)))))]>,
2571 Requires<[IsThumb2, HasThumb2DSP]> {
2572 let Inst{31-27} = 0b11111;
2573 let Inst{26-23} = 0b0110;
2574 let Inst{22-20} = 0b001;
2575 let Inst{7-6} = 0b00;
2576 let Inst{5-4} = 0b01;
2580 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2581 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2582 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2583 (sext_inreg rGPR:$Rm, i16))))]>,
2584 Requires<[IsThumb2, HasThumb2DSP]> {
2585 let Inst{31-27} = 0b11111;
2586 let Inst{26-23} = 0b0110;
2587 let Inst{22-20} = 0b001;
2588 let Inst{7-6} = 0b00;
2589 let Inst{5-4} = 0b10;
2593 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2594 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2595 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2596 (sra rGPR:$Rm, (i32 16)))))]>,
2597 Requires<[IsThumb2, HasThumb2DSP]> {
2598 let Inst{31-27} = 0b11111;
2599 let Inst{26-23} = 0b0110;
2600 let Inst{22-20} = 0b001;
2601 let Inst{7-6} = 0b00;
2602 let Inst{5-4} = 0b11;
2606 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2607 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2608 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2609 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]>,
2610 Requires<[IsThumb2, HasThumb2DSP]> {
2611 let Inst{31-27} = 0b11111;
2612 let Inst{26-23} = 0b0110;
2613 let Inst{22-20} = 0b011;
2614 let Inst{7-6} = 0b00;
2615 let Inst{5-4} = 0b00;
2619 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2620 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2621 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2622 (sra rGPR:$Rm, (i32 16))), (i32 16))))]>,
2623 Requires<[IsThumb2, HasThumb2DSP]> {
2624 let Inst{31-27} = 0b11111;
2625 let Inst{26-23} = 0b0110;
2626 let Inst{22-20} = 0b011;
2627 let Inst{7-6} = 0b00;
2628 let Inst{5-4} = 0b01;
2632 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2633 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2635 // Halfword multiple accumulate long: SMLAL<x><y>
2636 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2637 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2638 [/* For disassembly only; pattern left blank */]>,
2639 Requires<[IsThumb2, HasThumb2DSP]>;
2640 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2641 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2642 [/* For disassembly only; pattern left blank */]>,
2643 Requires<[IsThumb2, HasThumb2DSP]>;
2644 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2645 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2646 [/* For disassembly only; pattern left blank */]>,
2647 Requires<[IsThumb2, HasThumb2DSP]>;
2648 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2649 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2650 [/* For disassembly only; pattern left blank */]>,
2651 Requires<[IsThumb2, HasThumb2DSP]>;
2653 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2654 def t2SMUAD: T2ThreeReg_mac<
2655 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2656 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>,
2657 Requires<[IsThumb2, HasThumb2DSP]> {
2658 let Inst{15-12} = 0b1111;
2660 def t2SMUADX:T2ThreeReg_mac<
2661 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2662 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []>,
2663 Requires<[IsThumb2, HasThumb2DSP]> {
2664 let Inst{15-12} = 0b1111;
2666 def t2SMUSD: T2ThreeReg_mac<
2667 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2668 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []>,
2669 Requires<[IsThumb2, HasThumb2DSP]> {
2670 let Inst{15-12} = 0b1111;
2672 def t2SMUSDX:T2ThreeReg_mac<
2673 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2674 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []>,
2675 Requires<[IsThumb2, HasThumb2DSP]> {
2676 let Inst{15-12} = 0b1111;
2678 def t2SMLAD : T2FourReg_mac<
2679 0, 0b010, 0b0000, (outs rGPR:$Rd),
2680 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2681 "\t$Rd, $Rn, $Rm, $Ra", []>,
2682 Requires<[IsThumb2, HasThumb2DSP]>;
2683 def t2SMLADX : T2FourReg_mac<
2684 0, 0b010, 0b0001, (outs rGPR:$Rd),
2685 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2686 "\t$Rd, $Rn, $Rm, $Ra", []>,
2687 Requires<[IsThumb2, HasThumb2DSP]>;
2688 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2689 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2690 "\t$Rd, $Rn, $Rm, $Ra", []>,
2691 Requires<[IsThumb2, HasThumb2DSP]>;
2692 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2693 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2694 "\t$Rd, $Rn, $Rm, $Ra", []>,
2695 Requires<[IsThumb2, HasThumb2DSP]>;
2696 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2697 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64, "smlald",
2698 "\t$Ra, $Rd, $Rn, $Rm", []>,
2699 Requires<[IsThumb2, HasThumb2DSP]>;
2700 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2701 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaldx",
2702 "\t$Ra, $Rd, $Rn, $Rm", []>,
2703 Requires<[IsThumb2, HasThumb2DSP]>;
2704 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2705 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlsld",
2706 "\t$Ra, $Rd, $Rn, $Rm", []>,
2707 Requires<[IsThumb2, HasThumb2DSP]>;
2708 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2709 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2710 "\t$Ra, $Rd, $Rn, $Rm", []>,
2711 Requires<[IsThumb2, HasThumb2DSP]>;
2713 //===----------------------------------------------------------------------===//
2714 // Division Instructions.
2715 // Signed and unsigned division on v7-M
2717 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2718 "sdiv", "\t$Rd, $Rn, $Rm",
2719 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
2720 Requires<[HasDivide, IsThumb2]> {
2721 let Inst{31-27} = 0b11111;
2722 let Inst{26-21} = 0b011100;
2724 let Inst{15-12} = 0b1111;
2725 let Inst{7-4} = 0b1111;
2728 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2729 "udiv", "\t$Rd, $Rn, $Rm",
2730 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
2731 Requires<[HasDivide, IsThumb2]> {
2732 let Inst{31-27} = 0b11111;
2733 let Inst{26-21} = 0b011101;
2735 let Inst{15-12} = 0b1111;
2736 let Inst{7-4} = 0b1111;
2739 //===----------------------------------------------------------------------===//
2740 // Misc. Arithmetic Instructions.
2743 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2744 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2745 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2746 let Inst{31-27} = 0b11111;
2747 let Inst{26-22} = 0b01010;
2748 let Inst{21-20} = op1;
2749 let Inst{15-12} = 0b1111;
2750 let Inst{7-6} = 0b10;
2751 let Inst{5-4} = op2;
2755 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2756 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2758 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2759 "rbit", "\t$Rd, $Rm",
2760 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2762 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2763 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2765 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2766 "rev16", ".w\t$Rd, $Rm",
2767 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>;
2769 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2770 "revsh", ".w\t$Rd, $Rm",
2771 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>;
2773 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
2774 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
2775 (t2REVSH rGPR:$Rm)>;
2777 def t2PKHBT : T2ThreeReg<
2778 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_lsl_amt:$sh),
2779 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2780 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2781 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
2783 Requires<[HasT2ExtractPack, IsThumb2]> {
2784 let Inst{31-27} = 0b11101;
2785 let Inst{26-25} = 0b01;
2786 let Inst{24-20} = 0b01100;
2787 let Inst{5} = 0; // BT form
2791 let Inst{14-12} = sh{4-2};
2792 let Inst{7-6} = sh{1-0};
2795 // Alternate cases for PKHBT where identities eliminate some nodes.
2796 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2797 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2798 Requires<[HasT2ExtractPack, IsThumb2]>;
2799 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2800 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2801 Requires<[HasT2ExtractPack, IsThumb2]>;
2803 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2804 // will match the pattern below.
2805 def t2PKHTB : T2ThreeReg<
2806 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_asr_amt:$sh),
2807 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2808 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2809 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
2811 Requires<[HasT2ExtractPack, IsThumb2]> {
2812 let Inst{31-27} = 0b11101;
2813 let Inst{26-25} = 0b01;
2814 let Inst{24-20} = 0b01100;
2815 let Inst{5} = 1; // TB form
2819 let Inst{14-12} = sh{4-2};
2820 let Inst{7-6} = sh{1-0};
2823 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2824 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2825 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2826 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2827 Requires<[HasT2ExtractPack, IsThumb2]>;
2828 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2829 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2830 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
2831 Requires<[HasT2ExtractPack, IsThumb2]>;
2833 //===----------------------------------------------------------------------===//
2834 // Comparison Instructions...
2836 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2837 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2838 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>, "t2CMP">;
2840 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm),
2841 (t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>;
2842 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, rGPR:$rhs),
2843 (t2CMPrr GPRnopc:$lhs, rGPR:$rhs)>;
2844 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg:$rhs),
2845 (t2CMPrs GPRnopc:$lhs, t2_so_reg:$rhs)>;
2847 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2848 // Compare-to-zero still works out, just not the relationals
2849 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2850 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2851 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2852 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2853 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>,
2856 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2857 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2859 def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
2860 (t2CMNzri GPRnopc:$src, t2_so_imm_neg:$imm)>;
2862 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2863 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2864 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>,
2866 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2867 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2868 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>,
2871 // Conditional moves
2872 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2873 // a two-value operand where a dag node expects two operands. :(
2874 let neverHasSideEffects = 1 in {
2875 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
2876 (ins rGPR:$false, rGPR:$Rm, pred:$p),
2878 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2879 RegConstraint<"$false = $Rd">;
2881 let isMoveImm = 1 in
2882 def t2MOVCCi : t2PseudoInst<(outs rGPR:$Rd),
2883 (ins rGPR:$false, t2_so_imm:$imm, pred:$p),
2885 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2886 RegConstraint<"$false = $Rd">;
2888 // FIXME: Pseudo-ize these. For now, just mark codegen only.
2889 let isCodeGenOnly = 1 in {
2890 let isMoveImm = 1 in
2891 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, imm0_65535_expr:$imm),
2893 "movw", "\t$Rd, $imm", []>,
2894 RegConstraint<"$false = $Rd"> {
2895 let Inst{31-27} = 0b11110;
2897 let Inst{24-21} = 0b0010;
2898 let Inst{20} = 0; // The S bit.
2904 let Inst{11-8} = Rd;
2905 let Inst{19-16} = imm{15-12};
2906 let Inst{26} = imm{11};
2907 let Inst{14-12} = imm{10-8};
2908 let Inst{7-0} = imm{7-0};
2911 let isMoveImm = 1 in
2912 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2913 (ins rGPR:$false, i32imm:$src, pred:$p),
2914 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2916 let isMoveImm = 1 in
2917 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2918 IIC_iCMOVi, "mvn", "\t$Rd, $imm",
2919 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2920 imm:$cc, CCR:$ccr))*/]>,
2921 RegConstraint<"$false = $Rd"> {
2922 let Inst{31-27} = 0b11110;
2924 let Inst{24-21} = 0b0011;
2925 let Inst{20} = 0; // The S bit.
2926 let Inst{19-16} = 0b1111; // Rn
2930 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2931 string opc, string asm, list<dag> pattern>
2932 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2933 let Inst{31-27} = 0b11101;
2934 let Inst{26-25} = 0b01;
2935 let Inst{24-21} = 0b0010;
2936 let Inst{20} = 0; // The S bit.
2937 let Inst{19-16} = 0b1111; // Rn
2938 let Inst{5-4} = opcod; // Shift type.
2940 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2941 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2942 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2943 RegConstraint<"$false = $Rd">;
2944 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2945 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2946 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2947 RegConstraint<"$false = $Rd">;
2948 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2949 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2950 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2951 RegConstraint<"$false = $Rd">;
2952 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2953 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2954 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2955 RegConstraint<"$false = $Rd">;
2956 } // isCodeGenOnly = 1
2958 multiclass T2I_bincc_irs<Instruction iri, Instruction irr, Instruction irs,
2959 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis> {
2961 def ri : t2PseudoExpand<(outs rGPR:$Rd),
2962 (ins rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s),
2964 (iri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>,
2965 RegConstraint<"$Rn = $Rd">;
2967 def rr : t2PseudoExpand<(outs rGPR:$Rd),
2968 (ins rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s),
2970 (irr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>,
2971 RegConstraint<"$Rn = $Rd">;
2973 def rs : t2PseudoExpand<(outs rGPR:$Rd),
2974 (ins rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s),
2976 (irs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>,
2977 RegConstraint<"$Rn = $Rd">;
2980 defm t2ANDCC : T2I_bincc_irs<t2ANDri, t2ANDrr, t2ANDrs,
2981 IIC_iBITi, IIC_iBITr, IIC_iBITsi>;
2982 defm t2ORRCC : T2I_bincc_irs<t2ORRri, t2ORRrr, t2ORRrs,
2983 IIC_iBITi, IIC_iBITr, IIC_iBITsi>;
2984 defm t2EORCC : T2I_bincc_irs<t2EORri, t2EORrr, t2EORrs,
2985 IIC_iBITi, IIC_iBITr, IIC_iBITsi>;
2986 } // neverHasSideEffects
2988 //===----------------------------------------------------------------------===//
2989 // Atomic operations intrinsics
2992 // memory barriers protect the atomic sequences
2993 let hasSideEffects = 1 in {
2994 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2995 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2996 Requires<[IsThumb, HasDB]> {
2998 let Inst{31-4} = 0xf3bf8f5;
2999 let Inst{3-0} = opt;
3003 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
3004 "dsb", "\t$opt", []>,
3005 Requires<[IsThumb, HasDB]> {
3007 let Inst{31-4} = 0xf3bf8f4;
3008 let Inst{3-0} = opt;
3011 def t2ISB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
3013 []>, Requires<[IsThumb2, HasDB]> {
3015 let Inst{31-4} = 0xf3bf8f6;
3016 let Inst{3-0} = opt;
3019 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
3020 InstrItinClass itin, string opc, string asm, string cstr,
3021 list<dag> pattern, bits<4> rt2 = 0b1111>
3022 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3023 let Inst{31-27} = 0b11101;
3024 let Inst{26-20} = 0b0001101;
3025 let Inst{11-8} = rt2;
3026 let Inst{7-6} = 0b01;
3027 let Inst{5-4} = opcod;
3028 let Inst{3-0} = 0b1111;
3032 let Inst{19-16} = addr;
3033 let Inst{15-12} = Rt;
3035 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
3036 InstrItinClass itin, string opc, string asm, string cstr,
3037 list<dag> pattern, bits<4> rt2 = 0b1111>
3038 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3039 let Inst{31-27} = 0b11101;
3040 let Inst{26-20} = 0b0001100;
3041 let Inst{11-8} = rt2;
3042 let Inst{7-6} = 0b01;
3043 let Inst{5-4} = opcod;
3049 let Inst{19-16} = addr;
3050 let Inst{15-12} = Rt;
3053 let mayLoad = 1 in {
3054 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3055 AddrModeNone, 4, NoItinerary,
3056 "ldrexb", "\t$Rt, $addr", "", []>;
3057 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3058 AddrModeNone, 4, NoItinerary,
3059 "ldrexh", "\t$Rt, $addr", "", []>;
3060 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_imm0_1020s4:$addr),
3061 AddrModeNone, 4, NoItinerary,
3062 "ldrex", "\t$Rt, $addr", "", []> {
3065 let Inst{31-27} = 0b11101;
3066 let Inst{26-20} = 0b0000101;
3067 let Inst{19-16} = addr{11-8};
3068 let Inst{15-12} = Rt;
3069 let Inst{11-8} = 0b1111;
3070 let Inst{7-0} = addr{7-0};
3072 let hasExtraDefRegAllocReq = 1 in
3073 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
3074 (ins addr_offset_none:$addr),
3075 AddrModeNone, 4, NoItinerary,
3076 "ldrexd", "\t$Rt, $Rt2, $addr", "",
3079 let Inst{11-8} = Rt2;
3083 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
3084 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
3085 (ins rGPR:$Rt, addr_offset_none:$addr),
3086 AddrModeNone, 4, NoItinerary,
3087 "strexb", "\t$Rd, $Rt, $addr", "", []>;
3088 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
3089 (ins rGPR:$Rt, addr_offset_none:$addr),
3090 AddrModeNone, 4, NoItinerary,
3091 "strexh", "\t$Rd, $Rt, $addr", "", []>;
3092 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt,
3093 t2addrmode_imm0_1020s4:$addr),
3094 AddrModeNone, 4, NoItinerary,
3095 "strex", "\t$Rd, $Rt, $addr", "",
3100 let Inst{31-27} = 0b11101;
3101 let Inst{26-20} = 0b0000100;
3102 let Inst{19-16} = addr{11-8};
3103 let Inst{15-12} = Rt;
3104 let Inst{11-8} = Rd;
3105 let Inst{7-0} = addr{7-0};
3107 let hasExtraSrcRegAllocReq = 1 in
3108 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
3109 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr),
3110 AddrModeNone, 4, NoItinerary,
3111 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
3114 let Inst{11-8} = Rt2;
3118 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", []>,
3119 Requires<[IsThumb2, HasV7]> {
3120 let Inst{31-16} = 0xf3bf;
3121 let Inst{15-14} = 0b10;
3124 let Inst{11-8} = 0b1111;
3125 let Inst{7-4} = 0b0010;
3126 let Inst{3-0} = 0b1111;
3129 //===----------------------------------------------------------------------===//
3130 // SJLJ Exception handling intrinsics
3131 // eh_sjlj_setjmp() is an instruction sequence to store the return
3132 // address and save #0 in R0 for the non-longjmp case.
3133 // Since by its nature we may be coming from some other function to get
3134 // here, and we're using the stack frame for the containing function to
3135 // save/restore registers, we can't keep anything live in regs across
3136 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
3137 // when we get here from a longjmp(). We force everything out of registers
3138 // except for our own input by listing the relevant registers in Defs. By
3139 // doing so, we also cause the prologue/epilogue code to actively preserve
3140 // all of the callee-saved resgisters, which is exactly what we want.
3141 // $val is a scratch register for our use.
3143 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
3144 Q0, Q1, Q2, Q3, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15],
3145 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3146 usesCustomInserter = 1 in {
3147 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3148 AddrModeNone, 0, NoItinerary, "", "",
3149 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3150 Requires<[IsThumb2, HasVFP2]>;
3154 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
3155 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3156 usesCustomInserter = 1 in {
3157 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3158 AddrModeNone, 0, NoItinerary, "", "",
3159 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3160 Requires<[IsThumb2, NoVFP]>;
3164 //===----------------------------------------------------------------------===//
3165 // Control-Flow Instructions
3168 // FIXME: remove when we have a way to marking a MI with these properties.
3169 // FIXME: Should pc be an implicit operand like PICADD, etc?
3170 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
3171 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
3172 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
3173 reglist:$regs, variable_ops),
3174 4, IIC_iLoad_mBr, [],
3175 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
3176 RegConstraint<"$Rn = $wb">;
3178 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
3179 let isPredicable = 1 in
3180 def t2B : T2I<(outs), (ins uncondbrtarget:$target), IIC_Br,
3182 [(br bb:$target)]> {
3183 let Inst{31-27} = 0b11110;
3184 let Inst{15-14} = 0b10;
3188 let Inst{26} = target{19};
3189 let Inst{11} = target{18};
3190 let Inst{13} = target{17};
3191 let Inst{21-16} = target{16-11};
3192 let Inst{10-0} = target{10-0};
3195 let isNotDuplicable = 1, isIndirectBranch = 1 in {
3196 def t2BR_JT : t2PseudoInst<(outs),
3197 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3199 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
3201 // FIXME: Add a non-pc based case that can be predicated.
3202 def t2TBB_JT : t2PseudoInst<(outs),
3203 (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>;
3205 def t2TBH_JT : t2PseudoInst<(outs),
3206 (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>;
3208 def t2TBB : T2I<(outs), (ins addrmode_tbb:$addr), IIC_Br,
3209 "tbb", "\t$addr", []> {
3212 let Inst{31-20} = 0b111010001101;
3213 let Inst{19-16} = Rn;
3214 let Inst{15-5} = 0b11110000000;
3215 let Inst{4} = 0; // B form
3218 let DecoderMethod = "DecodeThumbTableBranch";
3221 def t2TBH : T2I<(outs), (ins addrmode_tbh:$addr), IIC_Br,
3222 "tbh", "\t$addr", []> {
3225 let Inst{31-20} = 0b111010001101;
3226 let Inst{19-16} = Rn;
3227 let Inst{15-5} = 0b11110000000;
3228 let Inst{4} = 1; // H form
3231 let DecoderMethod = "DecodeThumbTableBranch";
3233 } // isNotDuplicable, isIndirectBranch
3235 } // isBranch, isTerminator, isBarrier
3237 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3238 // a two-value operand where a dag node expects ", "two operands. :(
3239 let isBranch = 1, isTerminator = 1 in
3240 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3242 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3243 let Inst{31-27} = 0b11110;
3244 let Inst{15-14} = 0b10;
3248 let Inst{25-22} = p;
3251 let Inst{26} = target{20};
3252 let Inst{11} = target{19};
3253 let Inst{13} = target{18};
3254 let Inst{21-16} = target{17-12};
3255 let Inst{10-0} = target{11-1};
3257 let DecoderMethod = "DecodeThumb2BCCInstruction";
3260 // Tail calls. The IOS version of thumb tail calls uses a t2 branch, so
3262 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3265 def tTAILJMPd: tPseudoExpand<(outs),
3266 (ins uncondbrtarget:$dst, pred:$p, variable_ops),
3268 (t2B uncondbrtarget:$dst, pred:$p)>,
3269 Requires<[IsThumb2, IsIOS]>;
3273 // On non-IOS platforms R9 is callee-saved.
3274 Defs = [LR], Uses = [SP] in {
3275 // mov lr, pc; b if callee is marked noreturn to avoid confusing the
3276 // return stack predictor.
3277 def t2BMOVPCB_CALL : tPseudoInst<(outs),
3278 (ins t_bltarget:$func, variable_ops),
3279 6, IIC_Br, [(ARMcall_nolink tglobaladdr:$func)]>,
3280 Requires<[IsThumb, IsNotIOS]>;
3284 // On IOS R9 is call-clobbered.
3285 // R7 is marked as a use to prevent frame-pointer assignments from being
3286 // moved above / below calls.
3287 Defs = [LR], Uses = [R7, SP] in {
3288 // mov lr, pc; b if callee is marked noreturn to avoid confusing the
3289 // return stack predictor.
3290 def t2BMOVPCBr9_CALL : tPseudoInst<(outs),
3291 (ins t_bltarget:$func, variable_ops),
3292 6, IIC_Br, [(ARMcall_nolink tglobaladdr:$func)]>,
3293 Requires<[IsThumb, IsIOS]>;
3297 def : T2Pat<(ARMcall_nolink texternalsym:$func),
3298 (t2BMOVPCB_CALL texternalsym:$func)>,
3299 Requires<[IsThumb, IsNotIOS]>;
3300 def : T2Pat<(ARMcall_nolink texternalsym:$func),
3301 (t2BMOVPCBr9_CALL texternalsym:$func)>,
3302 Requires<[IsThumb, IsIOS]>;
3305 let Defs = [ITSTATE] in
3306 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3307 AddrModeNone, 2, IIC_iALUx,
3308 "it$mask\t$cc", "", []> {
3309 // 16-bit instruction.
3310 let Inst{31-16} = 0x0000;
3311 let Inst{15-8} = 0b10111111;
3316 let Inst{3-0} = mask;
3318 let DecoderMethod = "DecodeIT";
3321 // Branch and Exchange Jazelle -- for disassembly only
3323 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func", []> {
3325 let Inst{31-27} = 0b11110;
3327 let Inst{25-20} = 0b111100;
3328 let Inst{19-16} = func;
3329 let Inst{15-0} = 0b1000111100000000;
3332 // Compare and branch on zero / non-zero
3333 let isBranch = 1, isTerminator = 1 in {
3334 def tCBZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3335 "cbz\t$Rn, $target", []>,
3336 T1Misc<{0,0,?,1,?,?,?}>,
3337 Requires<[IsThumb2]> {
3341 let Inst{9} = target{5};
3342 let Inst{7-3} = target{4-0};
3346 def tCBNZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3347 "cbnz\t$Rn, $target", []>,
3348 T1Misc<{1,0,?,1,?,?,?}>,
3349 Requires<[IsThumb2]> {
3353 let Inst{9} = target{5};
3354 let Inst{7-3} = target{4-0};
3360 // Change Processor State is a system instruction.
3361 // FIXME: Since the asm parser has currently no clean way to handle optional
3362 // operands, create 3 versions of the same instruction. Once there's a clean
3363 // framework to represent optional operands, change this behavior.
3364 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3365 !strconcat("cps", asm_op), []> {
3371 let Inst{31-27} = 0b11110;
3373 let Inst{25-20} = 0b111010;
3374 let Inst{19-16} = 0b1111;
3375 let Inst{15-14} = 0b10;
3377 let Inst{10-9} = imod;
3379 let Inst{7-5} = iflags;
3380 let Inst{4-0} = mode;
3381 let DecoderMethod = "DecodeT2CPSInstruction";
3385 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3386 "$imod.w\t$iflags, $mode">;
3387 let mode = 0, M = 0 in
3388 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3389 "$imod.w\t$iflags">;
3390 let imod = 0, iflags = 0, M = 1 in
3391 def t2CPS1p : t2CPS<(ins imm0_31:$mode), "\t$mode">;
3393 // A6.3.4 Branches and miscellaneous control
3394 // Table A6-14 Change Processor State, and hint instructions
3395 class T2I_hint<bits<8> op7_0, string opc, string asm>
3396 : T2I<(outs), (ins), NoItinerary, opc, asm, []> {
3397 let Inst{31-20} = 0xf3a;
3398 let Inst{19-16} = 0b1111;
3399 let Inst{15-14} = 0b10;
3401 let Inst{10-8} = 0b000;
3402 let Inst{7-0} = op7_0;
3405 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3406 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3407 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3408 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3409 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3411 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
3413 let Inst{31-20} = 0b111100111010;
3414 let Inst{19-16} = 0b1111;
3415 let Inst{15-8} = 0b10000000;
3416 let Inst{7-4} = 0b1111;
3417 let Inst{3-0} = opt;
3420 // Secure Monitor Call is a system instruction.
3421 // Option = Inst{19-16}
3422 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt", []> {
3423 let Inst{31-27} = 0b11110;
3424 let Inst{26-20} = 0b1111111;
3425 let Inst{15-12} = 0b1000;
3428 let Inst{19-16} = opt;
3431 class T2SRS<bits<2> Op, bit W, dag oops, dag iops, InstrItinClass itin,
3432 string opc, string asm, list<dag> pattern>
3433 : T2I<oops, iops, itin, opc, asm, pattern> {
3435 let Inst{31-25} = 0b1110100;
3436 let Inst{24-23} = Op;
3439 let Inst{20-16} = 0b01101;
3440 let Inst{15-5} = 0b11000000000;
3441 let Inst{4-0} = mode{4-0};
3444 // Store Return State is a system instruction.
3445 def t2SRSDB_UPD : T2SRS<0b00, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3446 "srsdb", "\tsp!, $mode", []>;
3447 def t2SRSDB : T2SRS<0b00, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3448 "srsdb","\tsp, $mode", []>;
3449 def t2SRSIA_UPD : T2SRS<0b11, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3450 "srsia","\tsp!, $mode", []>;
3451 def t2SRSIA : T2SRS<0b11, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3452 "srsia","\tsp, $mode", []>;
3454 // Return From Exception is a system instruction.
3455 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3456 string opc, string asm, list<dag> pattern>
3457 : T2I<oops, iops, itin, opc, asm, pattern> {
3458 let Inst{31-20} = op31_20{11-0};
3461 let Inst{19-16} = Rn;
3462 let Inst{15-0} = 0xc000;
3465 def t2RFEDBW : T2RFE<0b111010000011,
3466 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3467 [/* For disassembly only; pattern left blank */]>;
3468 def t2RFEDB : T2RFE<0b111010000001,
3469 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3470 [/* For disassembly only; pattern left blank */]>;
3471 def t2RFEIAW : T2RFE<0b111010011011,
3472 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3473 [/* For disassembly only; pattern left blank */]>;
3474 def t2RFEIA : T2RFE<0b111010011001,
3475 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3476 [/* For disassembly only; pattern left blank */]>;
3478 //===----------------------------------------------------------------------===//
3479 // Non-Instruction Patterns
3482 // 32-bit immediate using movw + movt.
3483 // This is a single pseudo instruction to make it re-materializable.
3484 // FIXME: Remove this when we can do generalized remat.
3485 let isReMaterializable = 1, isMoveImm = 1 in
3486 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3487 [(set rGPR:$dst, (i32 imm:$src))]>,
3488 Requires<[IsThumb, HasV6T2]>;
3490 // Pseudo instruction that combines movw + movt + add pc (if pic).
3491 // It also makes it possible to rematerialize the instructions.
3492 // FIXME: Remove this when we can do generalized remat and when machine licm
3493 // can properly the instructions.
3494 let isReMaterializable = 1 in {
3495 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3497 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3498 Requires<[IsThumb2, UseMovt]>;
3500 def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3502 [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3503 Requires<[IsThumb2, UseMovt]>;
3506 // ConstantPool, GlobalAddress, and JumpTable
3507 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3508 Requires<[IsThumb2, DontUseMovt]>;
3509 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3510 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3511 Requires<[IsThumb2, UseMovt]>;
3513 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3514 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3516 // Pseudo instruction that combines ldr from constpool and add pc. This should
3517 // be expanded into two instructions late to allow if-conversion and
3519 let canFoldAsLoad = 1, isReMaterializable = 1 in
3520 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3522 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3524 Requires<[IsThumb2]>;
3526 // Pseudo isntruction that combines movs + predicated rsbmi
3527 // to implement integer ABS
3528 let usesCustomInserter = 1, Defs = [CPSR] in {
3529 def t2ABS : PseudoInst<(outs rGPR:$dst), (ins rGPR:$src),
3530 NoItinerary, []>, Requires<[IsThumb2]>;
3533 //===----------------------------------------------------------------------===//
3534 // Coprocessor load/store -- for disassembly only
3536 class T2CI<bits<4> op31_28, dag oops, dag iops, string opc, string asm>
3537 : T2I<oops, iops, NoItinerary, opc, asm, []> {
3538 let Inst{31-28} = op31_28;
3539 let Inst{27-25} = 0b110;
3542 multiclass t2LdStCop<bits<4> op31_28, bit load, bit Dbit, string asm> {
3543 def _OFFSET : T2CI<op31_28,
3544 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
3545 asm, "\t$cop, $CRd, $addr"> {
3549 let Inst{24} = 1; // P = 1
3550 let Inst{23} = addr{8};
3551 let Inst{22} = Dbit;
3552 let Inst{21} = 0; // W = 0
3553 let Inst{20} = load;
3554 let Inst{19-16} = addr{12-9};
3555 let Inst{15-12} = CRd;
3556 let Inst{11-8} = cop;
3557 let Inst{7-0} = addr{7-0};
3558 let DecoderMethod = "DecodeCopMemInstruction";
3560 def _PRE : T2CI<op31_28,
3561 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
3562 asm, "\t$cop, $CRd, $addr!"> {
3566 let Inst{24} = 1; // P = 1
3567 let Inst{23} = addr{8};
3568 let Inst{22} = Dbit;
3569 let Inst{21} = 1; // W = 1
3570 let Inst{20} = load;
3571 let Inst{19-16} = addr{12-9};
3572 let Inst{15-12} = CRd;
3573 let Inst{11-8} = cop;
3574 let Inst{7-0} = addr{7-0};
3575 let DecoderMethod = "DecodeCopMemInstruction";
3577 def _POST: T2CI<op31_28,
3578 (outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
3579 postidx_imm8s4:$offset),
3580 asm, "\t$cop, $CRd, $addr, $offset"> {
3585 let Inst{24} = 0; // P = 0
3586 let Inst{23} = offset{8};
3587 let Inst{22} = Dbit;
3588 let Inst{21} = 1; // W = 1
3589 let Inst{20} = load;
3590 let Inst{19-16} = addr;
3591 let Inst{15-12} = CRd;
3592 let Inst{11-8} = cop;
3593 let Inst{7-0} = offset{7-0};
3594 let DecoderMethod = "DecodeCopMemInstruction";
3596 def _OPTION : T2CI<op31_28, (outs),
3597 (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
3598 coproc_option_imm:$option),
3599 asm, "\t$cop, $CRd, $addr, $option"> {
3604 let Inst{24} = 0; // P = 0
3605 let Inst{23} = 1; // U = 1
3606 let Inst{22} = Dbit;
3607 let Inst{21} = 0; // W = 0
3608 let Inst{20} = load;
3609 let Inst{19-16} = addr;
3610 let Inst{15-12} = CRd;
3611 let Inst{11-8} = cop;
3612 let Inst{7-0} = option;
3613 let DecoderMethod = "DecodeCopMemInstruction";
3617 defm t2LDC : t2LdStCop<0b1110, 1, 0, "ldc">;
3618 defm t2LDCL : t2LdStCop<0b1110, 1, 1, "ldcl">;
3619 defm t2STC : t2LdStCop<0b1110, 0, 0, "stc">;
3620 defm t2STCL : t2LdStCop<0b1110, 0, 1, "stcl">;
3621 defm t2LDC2 : t2LdStCop<0b1111, 1, 0, "ldc2">;
3622 defm t2LDC2L : t2LdStCop<0b1111, 1, 1, "ldc2l">;
3623 defm t2STC2 : t2LdStCop<0b1111, 0, 0, "stc2">;
3624 defm t2STC2L : t2LdStCop<0b1111, 0, 1, "stc2l">;
3627 //===----------------------------------------------------------------------===//
3628 // Move between special register and ARM core register -- for disassembly only
3630 // Move to ARM core register from Special Register
3634 // A/R class can only move from CPSR or SPSR.
3635 def t2MRS_AR : T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, apsr", []>,
3636 Requires<[IsThumb2,IsARClass]> {
3638 let Inst{31-12} = 0b11110011111011111000;
3639 let Inst{11-8} = Rd;
3640 let Inst{7-0} = 0b0000;
3643 def : t2InstAlias<"mrs${p} $Rd, cpsr", (t2MRS_AR GPR:$Rd, pred:$p)>;
3645 def t2MRSsys_AR: T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr", []>,
3646 Requires<[IsThumb2,IsARClass]> {
3648 let Inst{31-12} = 0b11110011111111111000;
3649 let Inst{11-8} = Rd;
3650 let Inst{7-0} = 0b0000;
3655 // This MRS has a mask field in bits 7-0 and can take more values than
3656 // the A/R class (a full msr_mask).
3657 def t2MRS_M : T2I<(outs rGPR:$Rd), (ins msr_mask:$mask), NoItinerary,
3658 "mrs", "\t$Rd, $mask", []>,
3659 Requires<[IsThumb2,IsMClass]> {
3662 let Inst{31-12} = 0b11110011111011111000;
3663 let Inst{11-8} = Rd;
3664 let Inst{19-16} = 0b1111;
3665 let Inst{7-0} = mask;
3669 // Move from ARM core register to Special Register
3673 // No need to have both system and application versions, the encodings are the
3674 // same and the assembly parser has no way to distinguish between them. The mask
3675 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3676 // the mask with the fields to be accessed in the special register.
3677 def t2MSR_AR : T2I<(outs), (ins msr_mask:$mask, rGPR:$Rn),
3678 NoItinerary, "msr", "\t$mask, $Rn", []>,
3679 Requires<[IsThumb2,IsARClass]> {
3682 let Inst{31-21} = 0b11110011100;
3683 let Inst{20} = mask{4}; // R Bit
3684 let Inst{19-16} = Rn;
3685 let Inst{15-12} = 0b1000;
3686 let Inst{11-8} = mask{3-0};
3692 // Move from ARM core register to Special Register
3693 def t2MSR_M : T2I<(outs), (ins msr_mask:$SYSm, rGPR:$Rn),
3694 NoItinerary, "msr", "\t$SYSm, $Rn", []>,
3695 Requires<[IsThumb2,IsMClass]> {
3698 let Inst{31-21} = 0b11110011100;
3700 let Inst{19-16} = Rn;
3701 let Inst{15-12} = 0b1000;
3702 let Inst{7-0} = SYSm;
3706 //===----------------------------------------------------------------------===//
3707 // Move between coprocessor and ARM core register
3710 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
3712 : T2Cop<Op, oops, iops,
3713 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3715 let Inst{27-24} = 0b1110;
3716 let Inst{20} = direction;
3726 let Inst{15-12} = Rt;
3727 let Inst{11-8} = cop;
3728 let Inst{23-21} = opc1;
3729 let Inst{7-5} = opc2;
3730 let Inst{3-0} = CRm;
3731 let Inst{19-16} = CRn;
3734 class t2MovRRCopro<bits<4> Op, string opc, bit direction,
3735 list<dag> pattern = []>
3737 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3738 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
3739 let Inst{27-24} = 0b1100;
3740 let Inst{23-21} = 0b010;
3741 let Inst{20} = direction;
3749 let Inst{15-12} = Rt;
3750 let Inst{19-16} = Rt2;
3751 let Inst{11-8} = cop;
3752 let Inst{7-4} = opc1;
3753 let Inst{3-0} = CRm;
3756 /* from ARM core register to coprocessor */
3757 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
3759 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3760 c_imm:$CRm, imm0_7:$opc2),
3761 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3762 imm:$CRm, imm:$opc2)]>;
3763 def : t2InstAlias<"mcr $cop, $opc1, $Rt, $CRn, $CRm",
3764 (t2MCR p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3766 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
3767 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3768 c_imm:$CRm, imm0_7:$opc2),
3769 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3770 imm:$CRm, imm:$opc2)]>;
3771 def : t2InstAlias<"mcr2 $cop, $opc1, $Rt, $CRn, $CRm",
3772 (t2MCR2 p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3775 /* from coprocessor to ARM core register */
3776 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
3777 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3778 c_imm:$CRm, imm0_7:$opc2), []>;
3779 def : t2InstAlias<"mrc $cop, $opc1, $Rt, $CRn, $CRm",
3780 (t2MRC GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3783 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
3784 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3785 c_imm:$CRm, imm0_7:$opc2), []>;
3786 def : t2InstAlias<"mrc2 $cop, $opc1, $Rt, $CRn, $CRm",
3787 (t2MRC2 GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3790 def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3791 (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3793 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3794 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3797 /* from ARM core register to coprocessor */
3798 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0,
3799 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
3801 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0,
3802 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
3803 GPR:$Rt2, imm:$CRm)]>;
3804 /* from coprocessor to ARM core register */
3805 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>;
3807 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1>;
3809 //===----------------------------------------------------------------------===//
3810 // Other Coprocessor Instructions.
3813 def tCDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3814 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3815 "cdp\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3816 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3817 imm:$CRm, imm:$opc2)]> {
3818 let Inst{27-24} = 0b1110;
3827 let Inst{3-0} = CRm;
3829 let Inst{7-5} = opc2;
3830 let Inst{11-8} = cop;
3831 let Inst{15-12} = CRd;
3832 let Inst{19-16} = CRn;
3833 let Inst{23-20} = opc1;
3836 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3837 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3838 "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3839 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3840 imm:$CRm, imm:$opc2)]> {
3841 let Inst{27-24} = 0b1110;
3850 let Inst{3-0} = CRm;
3852 let Inst{7-5} = opc2;
3853 let Inst{11-8} = cop;
3854 let Inst{15-12} = CRd;
3855 let Inst{19-16} = CRn;
3856 let Inst{23-20} = opc1;
3861 //===----------------------------------------------------------------------===//
3862 // Non-Instruction Patterns
3865 // SXT/UXT with no rotate
3866 let AddedComplexity = 16 in {
3867 def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>,
3868 Requires<[IsThumb2]>;
3869 def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>,
3870 Requires<[IsThumb2]>;
3871 def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>,
3872 Requires<[HasT2ExtractPack, IsThumb2]>;
3873 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)),
3874 (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3875 Requires<[HasT2ExtractPack, IsThumb2]>;
3876 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)),
3877 (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3878 Requires<[HasT2ExtractPack, IsThumb2]>;
3881 def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>,
3882 Requires<[IsThumb2]>;
3883 def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>,
3884 Requires<[IsThumb2]>;
3885 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)),
3886 (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3887 Requires<[HasT2ExtractPack, IsThumb2]>;
3888 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)),
3889 (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3890 Requires<[HasT2ExtractPack, IsThumb2]>;
3892 // Atomic load/store patterns
3893 def : T2Pat<(atomic_load_8 t2addrmode_imm12:$addr),
3894 (t2LDRBi12 t2addrmode_imm12:$addr)>;
3895 def : T2Pat<(atomic_load_8 t2addrmode_negimm8:$addr),
3896 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
3897 def : T2Pat<(atomic_load_8 t2addrmode_so_reg:$addr),
3898 (t2LDRBs t2addrmode_so_reg:$addr)>;
3899 def : T2Pat<(atomic_load_16 t2addrmode_imm12:$addr),
3900 (t2LDRHi12 t2addrmode_imm12:$addr)>;
3901 def : T2Pat<(atomic_load_16 t2addrmode_negimm8:$addr),
3902 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
3903 def : T2Pat<(atomic_load_16 t2addrmode_so_reg:$addr),
3904 (t2LDRHs t2addrmode_so_reg:$addr)>;
3905 def : T2Pat<(atomic_load_32 t2addrmode_imm12:$addr),
3906 (t2LDRi12 t2addrmode_imm12:$addr)>;
3907 def : T2Pat<(atomic_load_32 t2addrmode_negimm8:$addr),
3908 (t2LDRi8 t2addrmode_negimm8:$addr)>;
3909 def : T2Pat<(atomic_load_32 t2addrmode_so_reg:$addr),
3910 (t2LDRs t2addrmode_so_reg:$addr)>;
3911 def : T2Pat<(atomic_store_8 t2addrmode_imm12:$addr, GPR:$val),
3912 (t2STRBi12 GPR:$val, t2addrmode_imm12:$addr)>;
3913 def : T2Pat<(atomic_store_8 t2addrmode_negimm8:$addr, GPR:$val),
3914 (t2STRBi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3915 def : T2Pat<(atomic_store_8 t2addrmode_so_reg:$addr, GPR:$val),
3916 (t2STRBs GPR:$val, t2addrmode_so_reg:$addr)>;
3917 def : T2Pat<(atomic_store_16 t2addrmode_imm12:$addr, GPR:$val),
3918 (t2STRHi12 GPR:$val, t2addrmode_imm12:$addr)>;
3919 def : T2Pat<(atomic_store_16 t2addrmode_negimm8:$addr, GPR:$val),
3920 (t2STRHi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3921 def : T2Pat<(atomic_store_16 t2addrmode_so_reg:$addr, GPR:$val),
3922 (t2STRHs GPR:$val, t2addrmode_so_reg:$addr)>;
3923 def : T2Pat<(atomic_store_32 t2addrmode_imm12:$addr, GPR:$val),
3924 (t2STRi12 GPR:$val, t2addrmode_imm12:$addr)>;
3925 def : T2Pat<(atomic_store_32 t2addrmode_negimm8:$addr, GPR:$val),
3926 (t2STRi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3927 def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val),
3928 (t2STRs GPR:$val, t2addrmode_so_reg:$addr)>;
3931 //===----------------------------------------------------------------------===//
3932 // Assembler aliases
3935 // Aliases for ADC without the ".w" optional width specifier.
3936 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm",
3937 (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3938 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm",
3939 (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3940 pred:$p, cc_out:$s)>;
3942 // Aliases for SBC without the ".w" optional width specifier.
3943 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm",
3944 (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3945 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
3946 (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3947 pred:$p, cc_out:$s)>;
3949 // Aliases for ADD without the ".w" optional width specifier.
3950 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
3951 (t2ADDri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3952 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
3953 (t2ADDri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
3954 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
3955 (t2ADDrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3956 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
3957 (t2ADDrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
3958 pred:$p, cc_out:$s)>;
3959 // ... and with the destination and source register combined.
3960 def : t2InstAlias<"add${s}${p} $Rdn, $imm",
3961 (t2ADDri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3962 def : t2InstAlias<"add${p} $Rdn, $imm",
3963 (t2ADDri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
3964 def : t2InstAlias<"add${s}${p} $Rdn, $Rm",
3965 (t2ADDrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3966 def : t2InstAlias<"add${s}${p} $Rdn, $ShiftedRm",
3967 (t2ADDrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
3968 pred:$p, cc_out:$s)>;
3970 // Aliases for SUB without the ".w" optional width specifier.
3971 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm",
3972 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3973 def : t2InstAlias<"sub${p} $Rd, $Rn, $imm",
3974 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
3975 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $Rm",
3976 (t2SUBrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3977 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $ShiftedRm",
3978 (t2SUBrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
3979 pred:$p, cc_out:$s)>;
3980 // ... and with the destination and source register combined.
3981 def : t2InstAlias<"sub${s}${p} $Rdn, $imm",
3982 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3983 def : t2InstAlias<"sub${p} $Rdn, $imm",
3984 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
3985 def : t2InstAlias<"sub${s}${p} $Rdn, $Rm",
3986 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3987 def : t2InstAlias<"sub${s}${p} $Rdn, $ShiftedRm",
3988 (t2SUBrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
3989 pred:$p, cc_out:$s)>;
3992 // Alias for compares without the ".w" optional width specifier.
3993 def : t2InstAlias<"cmn${p} $Rn, $Rm",
3994 (t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3995 def : t2InstAlias<"teq${p} $Rn, $Rm",
3996 (t2TEQrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3997 def : t2InstAlias<"tst${p} $Rn, $Rm",
3998 (t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4001 def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb2, HasDB]>;
4002 def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb2, HasDB]>;
4003 def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb2, HasDB]>;
4005 // Alias for LDR, LDRB, LDRH, LDRSB, and LDRSH without the ".w" optional
4007 def : t2InstAlias<"ldr${p} $Rt, $addr",
4008 (t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4009 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4010 (t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4011 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4012 (t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4013 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4014 (t2LDRSBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4015 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4016 (t2LDRSHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4018 def : t2InstAlias<"ldr${p} $Rt, $addr",
4019 (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4020 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4021 (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4022 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4023 (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4024 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4025 (t2LDRSBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4026 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4027 (t2LDRSHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4029 def : t2InstAlias<"ldr${p} $Rt, $addr",
4030 (t2LDRpci GPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4031 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4032 (t2LDRBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4033 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4034 (t2LDRHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4035 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4036 (t2LDRSBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4037 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4038 (t2LDRSHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4040 // Alias for MVN with(out) the ".w" optional width specifier.
4041 def : t2InstAlias<"mvn${s}${p}.w $Rd, $imm",
4042 (t2MVNi rGPR:$Rd, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4043 def : t2InstAlias<"mvn${s}${p} $Rd, $Rm",
4044 (t2MVNr rGPR:$Rd, rGPR:$Rm, pred:$p, cc_out:$s)>;
4045 def : t2InstAlias<"mvn${s}${p} $Rd, $ShiftedRm",
4046 (t2MVNs rGPR:$Rd, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>;
4048 // PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT when the
4049 // shift amount is zero (i.e., unspecified).
4050 def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
4051 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
4052 Requires<[HasT2ExtractPack, IsThumb2]>;
4053 def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
4054 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
4055 Requires<[HasT2ExtractPack, IsThumb2]>;
4057 // PUSH/POP aliases for STM/LDM
4058 def : t2InstAlias<"push${p}.w $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
4059 def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
4060 def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4061 def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4063 // STMIA/STMIA_UPD aliases w/o the optional .w suffix
4064 def : t2InstAlias<"stm${p} $Rn, $regs",
4065 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4066 def : t2InstAlias<"stm${p} $Rn!, $regs",
4067 (t2STMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4069 // LDMIA/LDMIA_UPD aliases w/o the optional .w suffix
4070 def : t2InstAlias<"ldm${p} $Rn, $regs",
4071 (t2LDMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4072 def : t2InstAlias<"ldm${p} $Rn!, $regs",
4073 (t2LDMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4075 // STMDB/STMDB_UPD aliases w/ the optional .w suffix
4076 def : t2InstAlias<"stmdb${p}.w $Rn, $regs",
4077 (t2STMDB GPR:$Rn, pred:$p, reglist:$regs)>;
4078 def : t2InstAlias<"stmdb${p}.w $Rn!, $regs",
4079 (t2STMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4081 // LDMDB/LDMDB_UPD aliases w/ the optional .w suffix
4082 def : t2InstAlias<"ldmdb${p}.w $Rn, $regs",
4083 (t2LDMDB GPR:$Rn, pred:$p, reglist:$regs)>;
4084 def : t2InstAlias<"ldmdb${p}.w $Rn!, $regs",
4085 (t2LDMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4087 // Alias for REV/REV16/REVSH without the ".w" optional width specifier.
4088 def : t2InstAlias<"rev${p} $Rd, $Rm", (t2REV rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4089 def : t2InstAlias<"rev16${p} $Rd, $Rm", (t2REV16 rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4090 def : t2InstAlias<"revsh${p} $Rd, $Rm", (t2REVSH rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4093 // Alias for RSB without the ".w" optional width specifier, and with optional
4094 // implied destination register.
4095 def : t2InstAlias<"rsb${s}${p} $Rd, $Rn, $imm",
4096 (t2RSBri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4097 def : t2InstAlias<"rsb${s}${p} $Rdn, $imm",
4098 (t2RSBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4099 def : t2InstAlias<"rsb${s}${p} $Rdn, $Rm",
4100 (t2RSBrr rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4101 def : t2InstAlias<"rsb${s}${p} $Rdn, $ShiftedRm",
4102 (t2RSBrs rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$ShiftedRm, pred:$p,
4105 // SSAT/USAT optional shift operand.
4106 def : t2InstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
4107 (t2SSAT rGPR:$Rd, imm1_32:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
4108 def : t2InstAlias<"usat${p} $Rd, $sat_imm, $Rn",
4109 (t2USAT rGPR:$Rd, imm0_31:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
4111 // STM w/o the .w suffix.
4112 def : t2InstAlias<"stm${p} $Rn, $regs",
4113 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4115 // Alias for STR, STRB, and STRH without the ".w" optional
4117 def : t2InstAlias<"str${p} $Rt, $addr",
4118 (t2STRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4119 def : t2InstAlias<"strb${p} $Rt, $addr",
4120 (t2STRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4121 def : t2InstAlias<"strh${p} $Rt, $addr",
4122 (t2STRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4124 def : t2InstAlias<"str${p} $Rt, $addr",
4125 (t2STRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4126 def : t2InstAlias<"strb${p} $Rt, $addr",
4127 (t2STRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4128 def : t2InstAlias<"strh${p} $Rt, $addr",
4129 (t2STRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4131 // Extend instruction optional rotate operand.
4132 def : t2InstAlias<"sxtab${p} $Rd, $Rn, $Rm",
4133 (t2SXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4134 def : t2InstAlias<"sxtah${p} $Rd, $Rn, $Rm",
4135 (t2SXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4136 def : t2InstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
4137 (t2SXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4139 def : t2InstAlias<"sxtb${p} $Rd, $Rm",
4140 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4141 def : t2InstAlias<"sxtb16${p} $Rd, $Rm",
4142 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4143 def : t2InstAlias<"sxth${p} $Rd, $Rm",
4144 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4145 def : t2InstAlias<"sxtb${p}.w $Rd, $Rm",
4146 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4147 def : t2InstAlias<"sxth${p}.w $Rd, $Rm",
4148 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4150 def : t2InstAlias<"uxtab${p} $Rd, $Rn, $Rm",
4151 (t2UXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4152 def : t2InstAlias<"uxtah${p} $Rd, $Rn, $Rm",
4153 (t2UXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4154 def : t2InstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
4155 (t2UXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4156 def : t2InstAlias<"uxtb${p} $Rd, $Rm",
4157 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4158 def : t2InstAlias<"uxtb16${p} $Rd, $Rm",
4159 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4160 def : t2InstAlias<"uxth${p} $Rd, $Rm",
4161 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4163 def : t2InstAlias<"uxtb${p}.w $Rd, $Rm",
4164 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4165 def : t2InstAlias<"uxth${p}.w $Rd, $Rm",
4166 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4168 // Extend instruction w/o the ".w" optional width specifier.
4169 def : t2InstAlias<"uxtb${p} $Rd, $Rm$rot",
4170 (t2UXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4171 def : t2InstAlias<"uxtb16${p} $Rd, $Rm$rot",
4172 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4173 def : t2InstAlias<"uxth${p} $Rd, $Rm$rot",
4174 (t2UXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4176 def : t2InstAlias<"sxtb${p} $Rd, $Rm$rot",
4177 (t2SXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4178 def : t2InstAlias<"sxtb16${p} $Rd, $Rm$rot",
4179 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4180 def : t2InstAlias<"sxth${p} $Rd, $Rm$rot",
4181 (t2SXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4184 // "mov Rd, t2_so_imm_not" can be handled via "mvn" in assembly, just like
4186 def : t2InstAlias<"mov${p} $Rd, $imm",
4187 (t2MVNi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
4188 def : t2InstAlias<"mvn${p} $Rd, $imm",
4189 (t2MOVi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
4190 // Same for AND <--> BIC
4191 def : t2InstAlias<"bic${s}${p} $Rd, $Rn, $imm",
4192 (t2ANDri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
4193 pred:$p, cc_out:$s)>;
4194 def : t2InstAlias<"bic${s}${p} $Rdn, $imm",
4195 (t2ANDri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
4196 pred:$p, cc_out:$s)>;
4197 def : t2InstAlias<"and${s}${p} $Rd, $Rn, $imm",
4198 (t2BICri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
4199 pred:$p, cc_out:$s)>;
4200 def : t2InstAlias<"and${s}${p} $Rdn, $imm",
4201 (t2BICri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
4202 pred:$p, cc_out:$s)>;
4203 // Likewise, "add Rd, t2_so_imm_neg" -> sub
4204 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4205 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm,
4206 pred:$p, cc_out:$s)>;
4207 def : t2InstAlias<"add${s}${p} $Rd, $imm",
4208 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rd, t2_so_imm_neg:$imm,
4209 pred:$p, cc_out:$s)>;
4210 // Same for CMP <--> CMN via t2_so_imm_neg
4211 def : t2InstAlias<"cmp${p} $Rd, $imm",
4212 (t2CMNzri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
4213 def : t2InstAlias<"cmn${p} $Rd, $imm",
4214 (t2CMPri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
4217 // Wide 'mul' encoding can be specified with only two operands.
4218 def : t2InstAlias<"mul${p} $Rn, $Rm",
4219 (t2MUL rGPR:$Rn, rGPR:$Rm, rGPR:$Rn, pred:$p)>;
4221 // "neg" is and alias for "rsb rd, rn, #0"
4222 def : t2InstAlias<"neg${s}${p} $Rd, $Rm",
4223 (t2RSBri rGPR:$Rd, rGPR:$Rm, 0, pred:$p, cc_out:$s)>;
4225 // MOV so_reg assembler pseudos. InstAlias isn't expressive enough for
4226 // these, unfortunately.
4227 def t2MOVsi: t2AsmPseudo<"mov${p} $Rd, $shift",
4228 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
4229 def t2MOVSsi: t2AsmPseudo<"movs${p} $Rd, $shift",
4230 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
4232 def t2MOVsr: t2AsmPseudo<"mov${p} $Rd, $shift",
4233 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
4234 def t2MOVSsr: t2AsmPseudo<"movs${p} $Rd, $shift",
4235 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
4237 // ADR w/o the .w suffix
4238 def : t2InstAlias<"adr${p} $Rd, $addr",
4239 (t2ADR rGPR:$Rd, t2adrlabel:$addr, pred:$p)>;
4241 // LDR(literal) w/ alternate [pc, #imm] syntax.
4242 def t2LDRpcrel : t2AsmPseudo<"ldr${p} $Rt, $addr",
4243 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4244 def t2LDRBpcrel : t2AsmPseudo<"ldrb${p} $Rt, $addr",
4245 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4246 def t2LDRHpcrel : t2AsmPseudo<"ldrh${p} $Rt, $addr",
4247 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4248 def t2LDRSBpcrel : t2AsmPseudo<"ldrsb${p} $Rt, $addr",
4249 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4250 def t2LDRSHpcrel : t2AsmPseudo<"ldrsh${p} $Rt, $addr",
4251 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4252 // Version w/ the .w suffix.
4253 def : t2InstAlias<"ldr${p}.w $Rt, $addr",
4254 (t2LDRpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4255 def : t2InstAlias<"ldrb${p}.w $Rt, $addr",
4256 (t2LDRBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4257 def : t2InstAlias<"ldrh${p}.w $Rt, $addr",
4258 (t2LDRHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4259 def : t2InstAlias<"ldrsb${p}.w $Rt, $addr",
4260 (t2LDRSBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4261 def : t2InstAlias<"ldrsh${p}.w $Rt, $addr",
4262 (t2LDRSHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4264 def : t2InstAlias<"add${p} $Rd, pc, $imm",
4265 (t2ADR rGPR:$Rd, imm0_4095:$imm, pred:$p)>;