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 // so_imm_notSext_XFORM - Return a so_imm value packed into the format
66 // described for so_imm_notSext def below, with sign extension from 16
68 def t2_so_imm_notSext16_XFORM : SDNodeXForm<imm, [{
69 APInt apIntN = N->getAPIntValue();
70 unsigned N16bitSignExt = apIntN.trunc(16).sext(32).getZExtValue();
71 return CurDAG->getTargetConstant(~N16bitSignExt, MVT::i32);
74 // t2_so_imm - Match a 32-bit immediate operand, which is an
75 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
76 // immediate splatted into multiple bytes of the word.
77 def t2_so_imm_asmoperand : ImmAsmOperand { let Name = "T2SOImm"; }
78 def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{
79 return ARM_AM::getT2SOImmVal(Imm) != -1;
81 let ParserMatchClass = t2_so_imm_asmoperand;
82 let EncoderMethod = "getT2SOImmOpValue";
83 let DecoderMethod = "DecodeT2SOImm";
86 // t2_so_imm_not - Match an immediate that is a complement
88 // Note: this pattern doesn't require an encoder method and such, as it's
89 // only used on aliases (Pat<> and InstAlias<>). The actual encoding
90 // is handled by the destination instructions, which use t2_so_imm.
91 def t2_so_imm_not_asmoperand : AsmOperandClass { let Name = "T2SOImmNot"; }
92 def t2_so_imm_not : Operand<i32>, PatLeaf<(imm), [{
93 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
94 }], t2_so_imm_not_XFORM> {
95 let ParserMatchClass = t2_so_imm_not_asmoperand;
98 // t2_so_imm_notSext - match an immediate that is a complement of a t2_so_imm
99 // if the upper 16 bits are zero.
100 def t2_so_imm_notSext : Operand<i32>, PatLeaf<(imm), [{
101 APInt apIntN = N->getAPIntValue();
102 if (!apIntN.isIntN(16)) return false;
103 unsigned N16bitSignExt = apIntN.trunc(16).sext(32).getZExtValue();
104 return ARM_AM::getT2SOImmVal(~N16bitSignExt) != -1;
105 }], t2_so_imm_notSext16_XFORM> {
106 let ParserMatchClass = t2_so_imm_not_asmoperand;
109 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
110 def t2_so_imm_neg_asmoperand : AsmOperandClass { let Name = "T2SOImmNeg"; }
111 def t2_so_imm_neg : Operand<i32>, PatLeaf<(imm), [{
112 int64_t Value = -(int)N->getZExtValue();
113 return Value && ARM_AM::getT2SOImmVal(Value) != -1;
114 }], t2_so_imm_neg_XFORM> {
115 let ParserMatchClass = t2_so_imm_neg_asmoperand;
118 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
119 def imm0_4095_asmoperand: ImmAsmOperand { let Name = "Imm0_4095"; }
120 def imm0_4095 : Operand<i32>, ImmLeaf<i32, [{
121 return Imm >= 0 && Imm < 4096;
123 let ParserMatchClass = imm0_4095_asmoperand;
126 def imm0_4095_neg_asmoperand: AsmOperandClass { let Name = "Imm0_4095Neg"; }
127 def imm0_4095_neg : Operand<i32>, PatLeaf<(i32 imm), [{
128 return (uint32_t)(-N->getZExtValue()) < 4096;
130 let ParserMatchClass = imm0_4095_neg_asmoperand;
133 def imm1_255_neg : PatLeaf<(i32 imm), [{
134 uint32_t Val = -N->getZExtValue();
135 return (Val > 0 && Val < 255);
138 def imm0_255_not : PatLeaf<(i32 imm), [{
139 return (uint32_t)(~N->getZExtValue()) < 255;
142 def lo5AllOne : PatLeaf<(i32 imm), [{
143 // Returns true if all low 5-bits are 1.
144 return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL;
147 // Define Thumb2 specific addressing modes.
149 // t2addrmode_imm12 := reg + imm12
150 def t2addrmode_imm12_asmoperand : AsmOperandClass {let Name="MemUImm12Offset";}
151 def t2addrmode_imm12 : Operand<i32>,
152 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
153 let PrintMethod = "printAddrModeImm12Operand<false>";
154 let EncoderMethod = "getAddrModeImm12OpValue";
155 let DecoderMethod = "DecodeT2AddrModeImm12";
156 let ParserMatchClass = t2addrmode_imm12_asmoperand;
157 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
160 // t2ldrlabel := imm12
161 def t2ldrlabel : Operand<i32> {
162 let EncoderMethod = "getAddrModeImm12OpValue";
163 let PrintMethod = "printThumbLdrLabelOperand";
166 def t2ldr_pcrel_imm12_asmoperand : AsmOperandClass {let Name = "MemPCRelImm12";}
167 def t2ldr_pcrel_imm12 : Operand<i32> {
168 let ParserMatchClass = t2ldr_pcrel_imm12_asmoperand;
169 // used for assembler pseudo instruction and maps to t2ldrlabel, so
170 // doesn't need encoder or print methods of its own.
173 // ADR instruction labels.
174 def t2adrlabel : Operand<i32> {
175 let EncoderMethod = "getT2AdrLabelOpValue";
176 let PrintMethod = "printAdrLabelOperand";
179 // t2addrmode_posimm8 := reg + imm8
180 def MemPosImm8OffsetAsmOperand : AsmOperandClass {let Name="MemPosImm8Offset";}
181 def t2addrmode_posimm8 : Operand<i32> {
182 let PrintMethod = "printT2AddrModeImm8Operand<false>";
183 let EncoderMethod = "getT2AddrModeImm8OpValue";
184 let DecoderMethod = "DecodeT2AddrModeImm8";
185 let ParserMatchClass = MemPosImm8OffsetAsmOperand;
186 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
189 // t2addrmode_negimm8 := reg - imm8
190 def MemNegImm8OffsetAsmOperand : AsmOperandClass {let Name="MemNegImm8Offset";}
191 def t2addrmode_negimm8 : Operand<i32>,
192 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
193 let PrintMethod = "printT2AddrModeImm8Operand<false>";
194 let EncoderMethod = "getT2AddrModeImm8OpValue";
195 let DecoderMethod = "DecodeT2AddrModeImm8";
196 let ParserMatchClass = MemNegImm8OffsetAsmOperand;
197 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
200 // t2addrmode_imm8 := reg +/- imm8
201 def MemImm8OffsetAsmOperand : AsmOperandClass { let Name = "MemImm8Offset"; }
202 class T2AddrMode_Imm8 : Operand<i32>,
203 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
204 let EncoderMethod = "getT2AddrModeImm8OpValue";
205 let DecoderMethod = "DecodeT2AddrModeImm8";
206 let ParserMatchClass = MemImm8OffsetAsmOperand;
207 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
210 def t2addrmode_imm8 : T2AddrMode_Imm8 {
211 let PrintMethod = "printT2AddrModeImm8Operand<false>";
214 def t2addrmode_imm8_pre : T2AddrMode_Imm8 {
215 let PrintMethod = "printT2AddrModeImm8Operand<true>";
218 def t2am_imm8_offset : Operand<i32>,
219 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
220 [], [SDNPWantRoot]> {
221 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
222 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
223 let DecoderMethod = "DecodeT2Imm8";
226 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
227 def MemImm8s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm8s4Offset";}
228 class T2AddrMode_Imm8s4 : Operand<i32> {
229 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
230 let DecoderMethod = "DecodeT2AddrModeImm8s4";
231 let ParserMatchClass = MemImm8s4OffsetAsmOperand;
232 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
235 def t2addrmode_imm8s4 : T2AddrMode_Imm8s4 {
236 let PrintMethod = "printT2AddrModeImm8s4Operand<false>";
239 def t2addrmode_imm8s4_pre : T2AddrMode_Imm8s4 {
240 let PrintMethod = "printT2AddrModeImm8s4Operand<true>";
243 def t2am_imm8s4_offset_asmoperand : AsmOperandClass { let Name = "Imm8s4"; }
244 def t2am_imm8s4_offset : Operand<i32> {
245 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
246 let EncoderMethod = "getT2Imm8s4OpValue";
247 let DecoderMethod = "DecodeT2Imm8S4";
250 // t2addrmode_imm0_1020s4 := reg + (imm8 << 2)
251 def MemImm0_1020s4OffsetAsmOperand : AsmOperandClass {
252 let Name = "MemImm0_1020s4Offset";
254 def t2addrmode_imm0_1020s4 : Operand<i32> {
255 let PrintMethod = "printT2AddrModeImm0_1020s4Operand";
256 let EncoderMethod = "getT2AddrModeImm0_1020s4OpValue";
257 let DecoderMethod = "DecodeT2AddrModeImm0_1020s4";
258 let ParserMatchClass = MemImm0_1020s4OffsetAsmOperand;
259 let MIOperandInfo = (ops GPRnopc:$base, i32imm:$offsimm);
262 // t2addrmode_so_reg := reg + (reg << imm2)
263 def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";}
264 def t2addrmode_so_reg : Operand<i32>,
265 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
266 let PrintMethod = "printT2AddrModeSoRegOperand";
267 let EncoderMethod = "getT2AddrModeSORegOpValue";
268 let DecoderMethod = "DecodeT2AddrModeSOReg";
269 let ParserMatchClass = t2addrmode_so_reg_asmoperand;
270 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
273 // Addresses for the TBB/TBH instructions.
274 def addrmode_tbb_asmoperand : AsmOperandClass { let Name = "MemTBB"; }
275 def addrmode_tbb : Operand<i32> {
276 let PrintMethod = "printAddrModeTBB";
277 let ParserMatchClass = addrmode_tbb_asmoperand;
278 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
280 def addrmode_tbh_asmoperand : AsmOperandClass { let Name = "MemTBH"; }
281 def addrmode_tbh : Operand<i32> {
282 let PrintMethod = "printAddrModeTBH";
283 let ParserMatchClass = addrmode_tbh_asmoperand;
284 let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
287 //===----------------------------------------------------------------------===//
288 // Multiclass helpers...
292 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
293 string opc, string asm, list<dag> pattern>
294 : T2I<oops, iops, itin, opc, asm, pattern> {
299 let Inst{26} = imm{11};
300 let Inst{14-12} = imm{10-8};
301 let Inst{7-0} = imm{7-0};
305 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
306 string opc, string asm, list<dag> pattern>
307 : T2sI<oops, iops, itin, opc, asm, pattern> {
313 let Inst{26} = imm{11};
314 let Inst{14-12} = imm{10-8};
315 let Inst{7-0} = imm{7-0};
318 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
319 string opc, string asm, list<dag> pattern>
320 : T2I<oops, iops, itin, opc, asm, pattern> {
324 let Inst{19-16} = Rn;
325 let Inst{26} = imm{11};
326 let Inst{14-12} = imm{10-8};
327 let Inst{7-0} = imm{7-0};
331 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
332 string opc, string asm, list<dag> pattern>
333 : T2I<oops, iops, itin, opc, asm, pattern> {
338 let Inst{3-0} = ShiftedRm{3-0};
339 let Inst{5-4} = ShiftedRm{6-5};
340 let Inst{14-12} = ShiftedRm{11-9};
341 let Inst{7-6} = ShiftedRm{8-7};
344 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
345 string opc, string asm, list<dag> pattern>
346 : T2sI<oops, iops, itin, opc, asm, pattern> {
351 let Inst{3-0} = ShiftedRm{3-0};
352 let Inst{5-4} = ShiftedRm{6-5};
353 let Inst{14-12} = ShiftedRm{11-9};
354 let Inst{7-6} = ShiftedRm{8-7};
357 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
358 string opc, string asm, list<dag> pattern>
359 : T2I<oops, iops, itin, opc, asm, pattern> {
363 let Inst{19-16} = Rn;
364 let Inst{3-0} = ShiftedRm{3-0};
365 let Inst{5-4} = ShiftedRm{6-5};
366 let Inst{14-12} = ShiftedRm{11-9};
367 let Inst{7-6} = ShiftedRm{8-7};
370 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
371 string opc, string asm, list<dag> pattern>
372 : T2I<oops, iops, itin, opc, asm, pattern> {
380 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
381 string opc, string asm, list<dag> pattern>
382 : T2sI<oops, iops, itin, opc, asm, pattern> {
390 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
391 string opc, string asm, list<dag> pattern>
392 : T2I<oops, iops, itin, opc, asm, pattern> {
396 let Inst{19-16} = Rn;
401 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
402 string opc, string asm, list<dag> pattern>
403 : T2I<oops, iops, itin, opc, asm, pattern> {
409 let Inst{19-16} = Rn;
410 let Inst{26} = imm{11};
411 let Inst{14-12} = imm{10-8};
412 let Inst{7-0} = imm{7-0};
415 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
416 string opc, string asm, list<dag> pattern>
417 : T2sI<oops, iops, itin, opc, asm, pattern> {
423 let Inst{19-16} = Rn;
424 let Inst{26} = imm{11};
425 let Inst{14-12} = imm{10-8};
426 let Inst{7-0} = imm{7-0};
429 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
430 string opc, string asm, list<dag> pattern>
431 : T2I<oops, iops, itin, opc, asm, pattern> {
438 let Inst{14-12} = imm{4-2};
439 let Inst{7-6} = imm{1-0};
442 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
443 string opc, string asm, list<dag> pattern>
444 : T2sI<oops, iops, itin, opc, asm, pattern> {
451 let Inst{14-12} = imm{4-2};
452 let Inst{7-6} = imm{1-0};
455 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
456 string opc, string asm, list<dag> pattern>
457 : T2I<oops, iops, itin, opc, asm, pattern> {
463 let Inst{19-16} = Rn;
467 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
468 string opc, string asm, list<dag> pattern>
469 : T2sI<oops, iops, itin, opc, asm, pattern> {
475 let Inst{19-16} = Rn;
479 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
480 string opc, string asm, list<dag> pattern>
481 : T2I<oops, iops, itin, opc, asm, pattern> {
487 let Inst{19-16} = Rn;
488 let Inst{3-0} = ShiftedRm{3-0};
489 let Inst{5-4} = ShiftedRm{6-5};
490 let Inst{14-12} = ShiftedRm{11-9};
491 let Inst{7-6} = ShiftedRm{8-7};
494 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
495 string opc, string asm, list<dag> pattern>
496 : T2sI<oops, iops, itin, opc, asm, pattern> {
502 let Inst{19-16} = Rn;
503 let Inst{3-0} = ShiftedRm{3-0};
504 let Inst{5-4} = ShiftedRm{6-5};
505 let Inst{14-12} = ShiftedRm{11-9};
506 let Inst{7-6} = ShiftedRm{8-7};
509 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
510 string opc, string asm, list<dag> pattern>
511 : T2I<oops, iops, itin, opc, asm, pattern> {
517 let Inst{19-16} = Rn;
518 let Inst{15-12} = Ra;
523 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
524 dag oops, dag iops, InstrItinClass itin,
525 string opc, string asm, list<dag> pattern>
526 : T2I<oops, iops, itin, opc, asm, pattern> {
532 let Inst{31-23} = 0b111110111;
533 let Inst{22-20} = opc22_20;
534 let Inst{19-16} = Rn;
535 let Inst{15-12} = RdLo;
536 let Inst{11-8} = RdHi;
537 let Inst{7-4} = opc7_4;
540 class T2MlaLong<bits<3> opc22_20, bits<4> opc7_4,
541 dag oops, dag iops, InstrItinClass itin,
542 string opc, string asm, list<dag> pattern>
543 : T2I<oops, iops, itin, opc, asm, pattern> {
549 let Inst{31-23} = 0b111110111;
550 let Inst{22-20} = opc22_20;
551 let Inst{19-16} = Rn;
552 let Inst{15-12} = RdLo;
553 let Inst{11-8} = RdHi;
554 let Inst{7-4} = opc7_4;
559 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
560 /// binary operation that produces a value. These are predicable and can be
561 /// changed to modify CPSR.
562 multiclass T2I_bin_irs<bits<4> opcod, string opc,
563 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
564 PatFrag opnode, bit Commutable = 0,
567 def ri : T2sTwoRegImm<
568 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
569 opc, "\t$Rd, $Rn, $imm",
570 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
571 Sched<[WriteALU, ReadALU]> {
572 let Inst{31-27} = 0b11110;
574 let Inst{24-21} = opcod;
578 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
579 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
580 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
581 Sched<[WriteALU, ReadALU, ReadALU]> {
582 let isCommutable = Commutable;
583 let Inst{31-27} = 0b11101;
584 let Inst{26-25} = 0b01;
585 let Inst{24-21} = opcod;
586 let Inst{14-12} = 0b000; // imm3
587 let Inst{7-6} = 0b00; // imm2
588 let Inst{5-4} = 0b00; // type
591 def rs : T2sTwoRegShiftedReg<
592 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
593 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
594 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
595 Sched<[WriteALUsi, ReadALU]> {
596 let Inst{31-27} = 0b11101;
597 let Inst{26-25} = 0b01;
598 let Inst{24-21} = opcod;
600 // Assembly aliases for optional destination operand when it's the same
601 // as the source operand.
602 def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
603 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn,
604 t2_so_imm:$imm, pred:$p,
606 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
607 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn,
610 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
611 (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn,
612 t2_so_reg:$shift, pred:$p,
616 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
617 // the ".w" suffix to indicate that they are wide.
618 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
619 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
620 PatFrag opnode, bit Commutable = 0> :
621 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w"> {
622 // Assembler aliases w/ the ".w" suffix.
623 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rd, $Rn, $imm"),
624 (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p,
626 // Assembler aliases w/o the ".w" suffix.
627 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
628 (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
630 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"),
631 (!cast<Instruction>(NAME#"rs") rGPR:$Rd, rGPR:$Rn, t2_so_reg:$shift,
632 pred:$p, cc_out:$s)>;
634 // and with the optional destination operand, too.
635 def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rdn, $imm"),
636 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm,
637 pred:$p, cc_out:$s)>;
638 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
639 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
641 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"),
642 (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$shift,
643 pred:$p, cc_out:$s)>;
646 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
647 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
648 /// it is equivalent to the T2I_bin_irs counterpart.
649 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
651 def ri : T2sTwoRegImm<
652 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
653 opc, ".w\t$Rd, $Rn, $imm",
654 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]>,
655 Sched<[WriteALU, ReadALU]> {
656 let Inst{31-27} = 0b11110;
658 let Inst{24-21} = opcod;
662 def rr : T2sThreeReg<
663 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
664 opc, "\t$Rd, $Rn, $Rm",
665 [/* For disassembly only; pattern left blank */]>,
666 Sched<[WriteALU, ReadALU, ReadALU]> {
667 let Inst{31-27} = 0b11101;
668 let Inst{26-25} = 0b01;
669 let Inst{24-21} = opcod;
670 let Inst{14-12} = 0b000; // imm3
671 let Inst{7-6} = 0b00; // imm2
672 let Inst{5-4} = 0b00; // type
675 def rs : T2sTwoRegShiftedReg<
676 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
677 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
678 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]>,
679 Sched<[WriteALUsi, ReadALU]> {
680 let Inst{31-27} = 0b11101;
681 let Inst{26-25} = 0b01;
682 let Inst{24-21} = opcod;
686 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
687 /// instruction modifies the CPSR register.
689 /// These opcodes will be converted to the real non-S opcodes by
690 /// AdjustInstrPostInstrSelection after giving then an optional CPSR operand.
691 let hasPostISelHook = 1, Defs = [CPSR] in {
692 multiclass T2I_bin_s_irs<InstrItinClass iii, InstrItinClass iir,
693 InstrItinClass iis, PatFrag opnode,
694 bit Commutable = 0> {
696 def ri : t2PseudoInst<(outs rGPR:$Rd),
697 (ins GPRnopc:$Rn, t2_so_imm:$imm, pred:$p),
699 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
701 Sched<[WriteALU, ReadALU]>;
703 def rr : t2PseudoInst<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm, pred:$p),
705 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
707 Sched<[WriteALU, ReadALU, ReadALU]> {
708 let isCommutable = Commutable;
711 def rs : t2PseudoInst<(outs rGPR:$Rd),
712 (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
714 [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
715 t2_so_reg:$ShiftedRm))]>,
716 Sched<[WriteALUsi, ReadALUsr]>;
720 /// T2I_rbin_s_is - Same as T2I_bin_s_irs, except selection DAG
721 /// operands are reversed.
722 let hasPostISelHook = 1, Defs = [CPSR] in {
723 multiclass T2I_rbin_s_is<PatFrag opnode> {
725 def ri : t2PseudoInst<(outs rGPR:$Rd),
726 (ins rGPR:$Rn, t2_so_imm:$imm, pred:$p),
728 [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm,
730 Sched<[WriteALU, ReadALU]>;
732 def rs : t2PseudoInst<(outs rGPR:$Rd),
733 (ins rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
735 [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm,
737 Sched<[WriteALUsi, ReadALU]>;
741 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
742 /// patterns for a binary operation that produces a value.
743 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
744 bit Commutable = 0> {
746 // The register-immediate version is re-materializable. This is useful
747 // in particular for taking the address of a local.
748 let isReMaterializable = 1 in {
749 def ri : T2sTwoRegImm<
750 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
751 opc, ".w\t$Rd, $Rn, $imm",
752 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]>,
753 Sched<[WriteALU, ReadALU]> {
754 let Inst{31-27} = 0b11110;
757 let Inst{23-21} = op23_21;
763 (outs GPRnopc:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
764 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
765 [(set GPRnopc:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]>,
766 Sched<[WriteALU, ReadALU]> {
770 let Inst{31-27} = 0b11110;
771 let Inst{26} = imm{11};
772 let Inst{25-24} = 0b10;
773 let Inst{23-21} = op23_21;
774 let Inst{20} = 0; // The S bit.
775 let Inst{19-16} = Rn;
777 let Inst{14-12} = imm{10-8};
779 let Inst{7-0} = imm{7-0};
782 def rr : T2sThreeReg<(outs GPRnopc:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm),
783 IIC_iALUr, opc, ".w\t$Rd, $Rn, $Rm",
784 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]>,
785 Sched<[WriteALU, ReadALU, ReadALU]> {
786 let isCommutable = Commutable;
787 let Inst{31-27} = 0b11101;
788 let Inst{26-25} = 0b01;
790 let Inst{23-21} = op23_21;
791 let Inst{14-12} = 0b000; // imm3
792 let Inst{7-6} = 0b00; // imm2
793 let Inst{5-4} = 0b00; // type
796 def rs : T2sTwoRegShiftedReg<
797 (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
798 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
799 [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]>,
800 Sched<[WriteALUsi, ReadALU]> {
801 let Inst{31-27} = 0b11101;
802 let Inst{26-25} = 0b01;
804 let Inst{23-21} = op23_21;
808 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
809 /// for a binary operation that produces a value and use the carry
810 /// bit. It's not predicable.
811 let Defs = [CPSR], Uses = [CPSR] in {
812 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
813 bit Commutable = 0> {
815 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
816 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
817 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_imm:$imm, CPSR))]>,
818 Requires<[IsThumb2]>, Sched<[WriteALU, ReadALU]> {
819 let Inst{31-27} = 0b11110;
821 let Inst{24-21} = opcod;
825 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
826 opc, ".w\t$Rd, $Rn, $Rm",
827 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, rGPR:$Rm, CPSR))]>,
828 Requires<[IsThumb2]>, Sched<[WriteALU, ReadALU, ReadALU]> {
829 let isCommutable = Commutable;
830 let Inst{31-27} = 0b11101;
831 let Inst{26-25} = 0b01;
832 let Inst{24-21} = opcod;
833 let Inst{14-12} = 0b000; // imm3
834 let Inst{7-6} = 0b00; // imm2
835 let Inst{5-4} = 0b00; // type
838 def rs : T2sTwoRegShiftedReg<
839 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
840 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
841 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm, CPSR))]>,
842 Requires<[IsThumb2]>, Sched<[WriteALUsi, ReadALU]> {
843 let Inst{31-27} = 0b11101;
844 let Inst{26-25} = 0b01;
845 let Inst{24-21} = opcod;
850 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
851 // rotate operation that produces a value.
852 multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, PatFrag opnode> {
854 def ri : T2sTwoRegShiftImm<
855 (outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi,
856 opc, ".w\t$Rd, $Rm, $imm",
857 [(set rGPR:$Rd, (opnode rGPR:$Rm, (i32 ty:$imm)))]>,
859 let Inst{31-27} = 0b11101;
860 let Inst{26-21} = 0b010010;
861 let Inst{19-16} = 0b1111; // Rn
862 let Inst{5-4} = opcod;
865 def rr : T2sThreeReg<
866 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
867 opc, ".w\t$Rd, $Rn, $Rm",
868 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
870 let Inst{31-27} = 0b11111;
871 let Inst{26-23} = 0b0100;
872 let Inst{22-21} = opcod;
873 let Inst{15-12} = 0b1111;
874 let Inst{7-4} = 0b0000;
877 // Optional destination register
878 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"),
879 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
881 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"),
882 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
885 // Assembler aliases w/o the ".w" suffix.
886 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"),
887 (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, ty:$imm, pred:$p,
889 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
890 (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
893 // and with the optional destination operand, too.
894 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"),
895 (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
897 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
898 (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
902 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
903 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
904 /// a explicit result, only implicitly set CPSR.
905 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
906 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
908 let isCompare = 1, Defs = [CPSR] in {
910 def ri : T2OneRegCmpImm<
911 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), iii,
912 opc, ".w\t$Rn, $imm",
913 [(opnode GPRnopc:$Rn, t2_so_imm:$imm)]>, Sched<[WriteCMP]> {
914 let Inst{31-27} = 0b11110;
916 let Inst{24-21} = opcod;
917 let Inst{20} = 1; // The S bit.
919 let Inst{11-8} = 0b1111; // Rd
922 def rr : T2TwoRegCmp<
923 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), iir,
925 [(opnode GPRnopc:$Rn, rGPR:$Rm)]>, Sched<[WriteCMP]> {
926 let Inst{31-27} = 0b11101;
927 let Inst{26-25} = 0b01;
928 let Inst{24-21} = opcod;
929 let Inst{20} = 1; // The S bit.
930 let Inst{14-12} = 0b000; // imm3
931 let Inst{11-8} = 0b1111; // Rd
932 let Inst{7-6} = 0b00; // imm2
933 let Inst{5-4} = 0b00; // type
936 def rs : T2OneRegCmpShiftedReg<
937 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), iis,
938 opc, ".w\t$Rn, $ShiftedRm",
939 [(opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]>,
940 Sched<[WriteCMPsi]> {
941 let Inst{31-27} = 0b11101;
942 let Inst{26-25} = 0b01;
943 let Inst{24-21} = opcod;
944 let Inst{20} = 1; // The S bit.
945 let Inst{11-8} = 0b1111; // Rd
949 // Assembler aliases w/o the ".w" suffix.
950 // No alias here for 'rr' version as not all instantiations of this
951 // multiclass want one (CMP in particular, does not).
952 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"),
953 (!cast<Instruction>(NAME#"ri") GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>;
954 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"),
955 (!cast<Instruction>(NAME#"rs") GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>;
958 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
959 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
960 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
962 def i12 : T2Ii12<(outs target:$Rt), (ins t2addrmode_imm12:$addr), iii,
963 opc, ".w\t$Rt, $addr",
964 [(set target:$Rt, (opnode t2addrmode_imm12:$addr))]> {
967 let Inst{31-25} = 0b1111100;
968 let Inst{24} = signed;
970 let Inst{22-21} = opcod;
971 let Inst{20} = 1; // load
972 let Inst{19-16} = addr{16-13}; // Rn
973 let Inst{15-12} = Rt;
974 let Inst{11-0} = addr{11-0}; // imm
976 let DecoderMethod = "DecodeT2LoadImm12";
978 def i8 : T2Ii8 <(outs target:$Rt), (ins t2addrmode_negimm8:$addr), iii,
980 [(set target:$Rt, (opnode t2addrmode_negimm8:$addr))]> {
983 let Inst{31-27} = 0b11111;
984 let Inst{26-25} = 0b00;
985 let Inst{24} = signed;
987 let Inst{22-21} = opcod;
988 let Inst{20} = 1; // load
989 let Inst{19-16} = addr{12-9}; // Rn
990 let Inst{15-12} = Rt;
992 // Offset: index==TRUE, wback==FALSE
993 let Inst{10} = 1; // The P bit.
994 let Inst{9} = addr{8}; // U
995 let Inst{8} = 0; // The W bit.
996 let Inst{7-0} = addr{7-0}; // imm
998 let DecoderMethod = "DecodeT2LoadImm8";
1000 def s : T2Iso <(outs target:$Rt), (ins t2addrmode_so_reg:$addr), iis,
1001 opc, ".w\t$Rt, $addr",
1002 [(set target:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
1003 let Inst{31-27} = 0b11111;
1004 let Inst{26-25} = 0b00;
1005 let Inst{24} = signed;
1007 let Inst{22-21} = opcod;
1008 let Inst{20} = 1; // load
1009 let Inst{11-6} = 0b000000;
1012 let Inst{15-12} = Rt;
1015 let Inst{19-16} = addr{9-6}; // Rn
1016 let Inst{3-0} = addr{5-2}; // Rm
1017 let Inst{5-4} = addr{1-0}; // imm
1019 let DecoderMethod = "DecodeT2LoadShift";
1022 // pci variant is very similar to i12, but supports negative offsets
1024 def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
1025 opc, ".w\t$Rt, $addr",
1026 [(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
1027 let isReMaterializable = 1;
1028 let Inst{31-27} = 0b11111;
1029 let Inst{26-25} = 0b00;
1030 let Inst{24} = signed;
1031 let Inst{23} = ?; // add = (U == '1')
1032 let Inst{22-21} = opcod;
1033 let Inst{20} = 1; // load
1034 let Inst{19-16} = 0b1111; // Rn
1037 let Inst{15-12} = Rt{3-0};
1038 let Inst{11-0} = addr{11-0};
1040 let DecoderMethod = "DecodeT2LoadLabel";
1044 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
1045 multiclass T2I_st<bits<2> opcod, string opc,
1046 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
1048 def i12 : T2Ii12<(outs), (ins target:$Rt, t2addrmode_imm12:$addr), iii,
1049 opc, ".w\t$Rt, $addr",
1050 [(opnode target:$Rt, t2addrmode_imm12:$addr)]> {
1051 let Inst{31-27} = 0b11111;
1052 let Inst{26-23} = 0b0001;
1053 let Inst{22-21} = opcod;
1054 let Inst{20} = 0; // !load
1057 let Inst{15-12} = Rt;
1060 let addr{12} = 1; // add = TRUE
1061 let Inst{19-16} = addr{16-13}; // Rn
1062 let Inst{23} = addr{12}; // U
1063 let Inst{11-0} = addr{11-0}; // imm
1065 def i8 : T2Ii8 <(outs), (ins target:$Rt, t2addrmode_negimm8:$addr), iii,
1066 opc, "\t$Rt, $addr",
1067 [(opnode target:$Rt, t2addrmode_negimm8:$addr)]> {
1068 let Inst{31-27} = 0b11111;
1069 let Inst{26-23} = 0b0000;
1070 let Inst{22-21} = opcod;
1071 let Inst{20} = 0; // !load
1073 // Offset: index==TRUE, wback==FALSE
1074 let Inst{10} = 1; // The P bit.
1075 let Inst{8} = 0; // The W bit.
1078 let Inst{15-12} = Rt;
1081 let Inst{19-16} = addr{12-9}; // Rn
1082 let Inst{9} = addr{8}; // U
1083 let Inst{7-0} = addr{7-0}; // imm
1085 def s : T2Iso <(outs), (ins target:$Rt, t2addrmode_so_reg:$addr), iis,
1086 opc, ".w\t$Rt, $addr",
1087 [(opnode target:$Rt, t2addrmode_so_reg:$addr)]> {
1088 let Inst{31-27} = 0b11111;
1089 let Inst{26-23} = 0b0000;
1090 let Inst{22-21} = opcod;
1091 let Inst{20} = 0; // !load
1092 let Inst{11-6} = 0b000000;
1095 let Inst{15-12} = Rt;
1098 let Inst{19-16} = addr{9-6}; // Rn
1099 let Inst{3-0} = addr{5-2}; // Rm
1100 let Inst{5-4} = addr{1-0}; // imm
1104 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
1105 /// register and one whose operand is a register rotated by 8/16/24.
1106 class T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode>
1107 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1108 opc, ".w\t$Rd, $Rm$rot",
1109 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1110 Requires<[IsThumb2]> {
1111 let Inst{31-27} = 0b11111;
1112 let Inst{26-23} = 0b0100;
1113 let Inst{22-20} = opcod;
1114 let Inst{19-16} = 0b1111; // Rn
1115 let Inst{15-12} = 0b1111;
1119 let Inst{5-4} = rot{1-0}; // rotate
1122 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
1123 class T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode>
1124 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot),
1125 IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
1126 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1127 Requires<[HasT2ExtractPack, IsThumb2]> {
1129 let Inst{31-27} = 0b11111;
1130 let Inst{26-23} = 0b0100;
1131 let Inst{22-20} = opcod;
1132 let Inst{19-16} = 0b1111; // Rn
1133 let Inst{15-12} = 0b1111;
1135 let Inst{5-4} = rot;
1138 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1140 class T2I_ext_rrot_sxtb16<bits<3> opcod, string opc>
1141 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1142 opc, "\t$Rd, $Rm$rot", []>,
1143 Requires<[IsThumb2, HasT2ExtractPack]> {
1145 let Inst{31-27} = 0b11111;
1146 let Inst{26-23} = 0b0100;
1147 let Inst{22-20} = opcod;
1148 let Inst{19-16} = 0b1111; // Rn
1149 let Inst{15-12} = 0b1111;
1151 let Inst{5-4} = rot;
1154 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1155 /// register and one whose operand is a register rotated by 8/16/24.
1156 class T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode>
1157 : T2ThreeReg<(outs rGPR:$Rd),
1158 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1159 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot",
1160 [(set rGPR:$Rd, (opnode rGPR:$Rn, (rotr rGPR:$Rm,rot_imm:$rot)))]>,
1161 Requires<[HasT2ExtractPack, IsThumb2]> {
1163 let Inst{31-27} = 0b11111;
1164 let Inst{26-23} = 0b0100;
1165 let Inst{22-20} = opcod;
1166 let Inst{15-12} = 0b1111;
1168 let Inst{5-4} = rot;
1171 class T2I_exta_rrot_np<bits<3> opcod, string opc>
1172 : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm,rot_imm:$rot),
1173 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []> {
1175 let Inst{31-27} = 0b11111;
1176 let Inst{26-23} = 0b0100;
1177 let Inst{22-20} = opcod;
1178 let Inst{15-12} = 0b1111;
1180 let Inst{5-4} = rot;
1183 //===----------------------------------------------------------------------===//
1185 //===----------------------------------------------------------------------===//
1187 //===----------------------------------------------------------------------===//
1188 // Miscellaneous Instructions.
1191 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1192 string asm, list<dag> pattern>
1193 : T2XI<oops, iops, itin, asm, pattern> {
1197 let Inst{11-8} = Rd;
1198 let Inst{26} = label{11};
1199 let Inst{14-12} = label{10-8};
1200 let Inst{7-0} = label{7-0};
1203 // LEApcrel - Load a pc-relative address into a register without offending the
1205 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1206 (ins t2adrlabel:$addr, pred:$p),
1207 IIC_iALUi, "adr{$p}.w\t$Rd, $addr", []>,
1208 Sched<[WriteALU, ReadALU]> {
1209 let Inst{31-27} = 0b11110;
1210 let Inst{25-24} = 0b10;
1211 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1214 let Inst{19-16} = 0b1111; // Rn
1219 let Inst{11-8} = Rd;
1220 let Inst{23} = addr{12};
1221 let Inst{21} = addr{12};
1222 let Inst{26} = addr{11};
1223 let Inst{14-12} = addr{10-8};
1224 let Inst{7-0} = addr{7-0};
1226 let DecoderMethod = "DecodeT2Adr";
1229 let neverHasSideEffects = 1, isReMaterializable = 1 in
1230 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1231 4, IIC_iALUi, []>, Sched<[WriteALU, ReadALU]>;
1232 let hasSideEffects = 1 in
1233 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1234 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1236 []>, Sched<[WriteALU, ReadALU]>;
1239 //===----------------------------------------------------------------------===//
1240 // Load / store Instructions.
1244 let canFoldAsLoad = 1, isReMaterializable = 1 in
1245 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si, GPR,
1246 UnOpFrag<(load node:$Src)>>;
1248 // Loads with zero extension
1249 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1250 GPR, UnOpFrag<(zextloadi16 node:$Src)>>;
1251 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1252 GPR, UnOpFrag<(zextloadi8 node:$Src)>>;
1254 // Loads with sign extension
1255 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1256 GPR, UnOpFrag<(sextloadi16 node:$Src)>>;
1257 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1258 GPR, UnOpFrag<(sextloadi8 node:$Src)>>;
1260 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1262 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1263 (ins t2addrmode_imm8s4:$addr),
1264 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", "", []>;
1265 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1267 // zextload i1 -> zextload i8
1268 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1269 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1270 def : T2Pat<(zextloadi1 t2addrmode_negimm8:$addr),
1271 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1272 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1273 (t2LDRBs t2addrmode_so_reg:$addr)>;
1274 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1275 (t2LDRBpci tconstpool:$addr)>;
1277 // extload -> zextload
1278 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1280 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1281 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1282 def : T2Pat<(extloadi1 t2addrmode_negimm8:$addr),
1283 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1284 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1285 (t2LDRBs t2addrmode_so_reg:$addr)>;
1286 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1287 (t2LDRBpci tconstpool:$addr)>;
1289 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1290 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1291 def : T2Pat<(extloadi8 t2addrmode_negimm8:$addr),
1292 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1293 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1294 (t2LDRBs t2addrmode_so_reg:$addr)>;
1295 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1296 (t2LDRBpci tconstpool:$addr)>;
1298 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1299 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1300 def : T2Pat<(extloadi16 t2addrmode_negimm8:$addr),
1301 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
1302 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1303 (t2LDRHs t2addrmode_so_reg:$addr)>;
1304 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1305 (t2LDRHpci tconstpool:$addr)>;
1307 // FIXME: The destination register of the loads and stores can't be PC, but
1308 // can be SP. We need another regclass (similar to rGPR) to represent
1309 // that. Not a pressing issue since these are selected manually,
1314 let mayLoad = 1, neverHasSideEffects = 1 in {
1315 def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1316 (ins t2addrmode_imm8_pre:$addr),
1317 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1318 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1320 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1323 def t2LDR_POST : T2Ipostldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1324 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1325 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1326 "ldr", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1328 def t2LDRB_PRE : T2Ipreldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1329 (ins t2addrmode_imm8_pre:$addr),
1330 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1331 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1333 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1335 def t2LDRB_POST : T2Ipostldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1336 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1337 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1338 "ldrb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1340 def t2LDRH_PRE : T2Ipreldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1341 (ins t2addrmode_imm8_pre:$addr),
1342 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1343 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1345 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1347 def t2LDRH_POST : T2Ipostldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1348 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1349 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1350 "ldrh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1352 def t2LDRSB_PRE : T2Ipreldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1353 (ins t2addrmode_imm8_pre:$addr),
1354 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1355 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1357 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1359 def t2LDRSB_POST : T2Ipostldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1360 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1361 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1362 "ldrsb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1364 def t2LDRSH_PRE : T2Ipreldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1365 (ins t2addrmode_imm8_pre:$addr),
1366 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1367 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
1369 let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
1371 def t2LDRSH_POST : T2Ipostldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1372 (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
1373 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1374 "ldrsh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
1375 } // mayLoad = 1, neverHasSideEffects = 1
1377 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110).
1378 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1379 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1380 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_posimm8:$addr), ii, opc,
1381 "\t$Rt, $addr", []> {
1384 let Inst{31-27} = 0b11111;
1385 let Inst{26-25} = 0b00;
1386 let Inst{24} = signed;
1388 let Inst{22-21} = type;
1389 let Inst{20} = 1; // load
1390 let Inst{19-16} = addr{12-9};
1391 let Inst{15-12} = Rt;
1393 let Inst{10-8} = 0b110; // PUW.
1394 let Inst{7-0} = addr{7-0};
1396 let DecoderMethod = "DecodeT2LoadT";
1399 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1400 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1401 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1402 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1403 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1406 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si, GPR,
1407 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1408 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1409 rGPR, BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1410 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1411 rGPR, BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1414 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1415 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1416 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1417 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", "", []>;
1421 let mayStore = 1, neverHasSideEffects = 1 in {
1422 def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
1423 (ins GPRnopc:$Rt, t2addrmode_imm8_pre:$addr),
1424 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1425 "str", "\t$Rt, $addr!",
1426 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1427 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1429 def t2STRH_PRE : T2Ipreldst<0, 0b01, 0, 1, (outs GPRnopc:$Rn_wb),
1430 (ins rGPR:$Rt, t2addrmode_imm8_pre:$addr),
1431 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1432 "strh", "\t$Rt, $addr!",
1433 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1434 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1437 def t2STRB_PRE : T2Ipreldst<0, 0b00, 0, 1, (outs GPRnopc:$Rn_wb),
1438 (ins rGPR:$Rt, t2addrmode_imm8_pre:$addr),
1439 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1440 "strb", "\t$Rt, $addr!",
1441 "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
1442 let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
1444 } // mayStore = 1, neverHasSideEffects = 1
1446 def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
1447 (ins GPRnopc:$Rt, addr_offset_none:$Rn,
1448 t2am_imm8_offset:$offset),
1449 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1450 "str", "\t$Rt, $Rn$offset",
1451 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1452 [(set GPRnopc:$Rn_wb,
1453 (post_store GPRnopc:$Rt, addr_offset_none:$Rn,
1454 t2am_imm8_offset:$offset))]>;
1456 def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb),
1457 (ins rGPR:$Rt, addr_offset_none:$Rn,
1458 t2am_imm8_offset:$offset),
1459 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1460 "strh", "\t$Rt, $Rn$offset",
1461 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1462 [(set GPRnopc:$Rn_wb,
1463 (post_truncsti16 rGPR:$Rt, addr_offset_none:$Rn,
1464 t2am_imm8_offset:$offset))]>;
1466 def t2STRB_POST : T2Ipostldst<0, 0b00, 0, 0, (outs GPRnopc:$Rn_wb),
1467 (ins rGPR:$Rt, addr_offset_none:$Rn,
1468 t2am_imm8_offset:$offset),
1469 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1470 "strb", "\t$Rt, $Rn$offset",
1471 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
1472 [(set GPRnopc:$Rn_wb,
1473 (post_truncsti8 rGPR:$Rt, addr_offset_none:$Rn,
1474 t2am_imm8_offset:$offset))]>;
1476 // Pseudo-instructions for pattern matching the pre-indexed stores. We can't
1477 // put the patterns on the instruction definitions directly as ISel wants
1478 // the address base and offset to be separate operands, not a single
1479 // complex operand like we represent the instructions themselves. The
1480 // pseudos map between the two.
1481 let usesCustomInserter = 1,
1482 Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in {
1483 def t2STR_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1484 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1486 [(set GPRnopc:$Rn_wb,
1487 (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1488 def t2STRB_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1489 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1491 [(set GPRnopc:$Rn_wb,
1492 (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1493 def t2STRH_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
1494 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
1496 [(set GPRnopc:$Rn_wb,
1497 (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
1500 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1502 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1503 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1504 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1505 "\t$Rt, $addr", []> {
1506 let Inst{31-27} = 0b11111;
1507 let Inst{26-25} = 0b00;
1508 let Inst{24} = 0; // not signed
1510 let Inst{22-21} = type;
1511 let Inst{20} = 0; // store
1513 let Inst{10-8} = 0b110; // PUW
1517 let Inst{15-12} = Rt;
1518 let Inst{19-16} = addr{12-9};
1519 let Inst{7-0} = addr{7-0};
1522 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1523 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1524 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1526 // ldrd / strd pre / post variants
1527 // For disassembly only.
1529 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1530 (ins t2addrmode_imm8s4_pre:$addr), IIC_iLoad_d_ru,
1531 "ldrd", "\t$Rt, $Rt2, $addr!", "$addr.base = $wb", []> {
1532 let AsmMatchConverter = "cvtT2LdrdPre";
1533 let DecoderMethod = "DecodeT2LDRDPreInstruction";
1536 def t2LDRD_POST : T2Ii8s4post<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1537 (ins addr_offset_none:$addr, t2am_imm8s4_offset:$imm),
1538 IIC_iLoad_d_ru, "ldrd", "\t$Rt, $Rt2, $addr$imm",
1539 "$addr.base = $wb", []>;
1541 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs GPR:$wb),
1542 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4_pre:$addr),
1543 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr!",
1544 "$addr.base = $wb", []> {
1545 let AsmMatchConverter = "cvtT2StrdPre";
1546 let DecoderMethod = "DecodeT2STRDPreInstruction";
1549 def t2STRD_POST : T2Ii8s4post<0, 1, 0, (outs GPR:$wb),
1550 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr,
1551 t2am_imm8s4_offset:$imm),
1552 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr$imm",
1553 "$addr.base = $wb", []>;
1555 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1556 // data/instruction access.
1557 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1558 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1559 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1561 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1563 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]>,
1564 Sched<[WritePreLd]> {
1565 let Inst{31-25} = 0b1111100;
1566 let Inst{24} = instr;
1568 let Inst{21} = write;
1570 let Inst{15-12} = 0b1111;
1573 let addr{12} = 1; // add = TRUE
1574 let Inst{19-16} = addr{16-13}; // Rn
1575 let Inst{23} = addr{12}; // U
1576 let Inst{11-0} = addr{11-0}; // imm12
1579 def i8 : T2Ii8<(outs), (ins t2addrmode_negimm8:$addr), IIC_Preload, opc,
1581 [(ARMPreload t2addrmode_negimm8:$addr, (i32 write), (i32 instr))]>,
1582 Sched<[WritePreLd]> {
1583 let Inst{31-25} = 0b1111100;
1584 let Inst{24} = instr;
1585 let Inst{23} = 0; // U = 0
1587 let Inst{21} = write;
1589 let Inst{15-12} = 0b1111;
1590 let Inst{11-8} = 0b1100;
1593 let Inst{19-16} = addr{12-9}; // Rn
1594 let Inst{7-0} = addr{7-0}; // imm8
1597 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1599 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]>,
1600 Sched<[WritePreLd]> {
1601 let Inst{31-25} = 0b1111100;
1602 let Inst{24} = instr;
1603 let Inst{23} = 0; // add = TRUE for T1
1605 let Inst{21} = write;
1607 let Inst{15-12} = 0b1111;
1608 let Inst{11-6} = 0000000;
1611 let Inst{19-16} = addr{9-6}; // Rn
1612 let Inst{3-0} = addr{5-2}; // Rm
1613 let Inst{5-4} = addr{1-0}; // imm2
1615 let DecoderMethod = "DecodeT2LoadShift";
1617 // FIXME: We should have a separate 'pci' variant here. As-is we represent
1618 // it via the i12 variant, which it's related to, but that means we can
1619 // represent negative immediates, which aren't legal for anything except
1620 // the 'pci' case (Rn == 15).
1623 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1624 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1625 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1627 //===----------------------------------------------------------------------===//
1628 // Load / store multiple Instructions.
1631 multiclass thumb2_ld_mult<string asm, InstrItinClass itin,
1632 InstrItinClass itin_upd, bit L_bit> {
1634 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1635 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1639 let Inst{31-27} = 0b11101;
1640 let Inst{26-25} = 0b00;
1641 let Inst{24-23} = 0b01; // Increment After
1643 let Inst{21} = 0; // No writeback
1644 let Inst{20} = L_bit;
1645 let Inst{19-16} = Rn;
1646 let Inst{15-0} = regs;
1649 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1650 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1654 let Inst{31-27} = 0b11101;
1655 let Inst{26-25} = 0b00;
1656 let Inst{24-23} = 0b01; // Increment After
1658 let Inst{21} = 1; // Writeback
1659 let Inst{20} = L_bit;
1660 let Inst{19-16} = Rn;
1661 let Inst{15-0} = regs;
1664 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1665 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1669 let Inst{31-27} = 0b11101;
1670 let Inst{26-25} = 0b00;
1671 let Inst{24-23} = 0b10; // Decrement Before
1673 let Inst{21} = 0; // No writeback
1674 let Inst{20} = L_bit;
1675 let Inst{19-16} = Rn;
1676 let Inst{15-0} = regs;
1679 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1680 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1684 let Inst{31-27} = 0b11101;
1685 let Inst{26-25} = 0b00;
1686 let Inst{24-23} = 0b10; // Decrement Before
1688 let Inst{21} = 1; // Writeback
1689 let Inst{20} = L_bit;
1690 let Inst{19-16} = Rn;
1691 let Inst{15-0} = regs;
1695 let neverHasSideEffects = 1 in {
1697 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1698 defm t2LDM : thumb2_ld_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1700 multiclass thumb2_st_mult<string asm, InstrItinClass itin,
1701 InstrItinClass itin_upd, bit L_bit> {
1703 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1704 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1708 let Inst{31-27} = 0b11101;
1709 let Inst{26-25} = 0b00;
1710 let Inst{24-23} = 0b01; // Increment After
1712 let Inst{21} = 0; // No writeback
1713 let Inst{20} = L_bit;
1714 let Inst{19-16} = Rn;
1716 let Inst{14} = regs{14};
1718 let Inst{12-0} = regs{12-0};
1721 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1722 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1726 let Inst{31-27} = 0b11101;
1727 let Inst{26-25} = 0b00;
1728 let Inst{24-23} = 0b01; // Increment After
1730 let Inst{21} = 1; // Writeback
1731 let Inst{20} = L_bit;
1732 let Inst{19-16} = Rn;
1734 let Inst{14} = regs{14};
1736 let Inst{12-0} = regs{12-0};
1739 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1740 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1744 let Inst{31-27} = 0b11101;
1745 let Inst{26-25} = 0b00;
1746 let Inst{24-23} = 0b10; // Decrement Before
1748 let Inst{21} = 0; // No writeback
1749 let Inst{20} = L_bit;
1750 let Inst{19-16} = Rn;
1752 let Inst{14} = regs{14};
1754 let Inst{12-0} = regs{12-0};
1757 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1758 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1762 let Inst{31-27} = 0b11101;
1763 let Inst{26-25} = 0b00;
1764 let Inst{24-23} = 0b10; // Decrement Before
1766 let Inst{21} = 1; // Writeback
1767 let Inst{20} = L_bit;
1768 let Inst{19-16} = Rn;
1770 let Inst{14} = regs{14};
1772 let Inst{12-0} = regs{12-0};
1777 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1778 defm t2STM : thumb2_st_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1780 } // neverHasSideEffects
1783 //===----------------------------------------------------------------------===//
1784 // Move Instructions.
1787 let neverHasSideEffects = 1 in
1788 def t2MOVr : T2sTwoReg<(outs GPRnopc:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1789 "mov", ".w\t$Rd, $Rm", []>, Sched<[WriteALU]> {
1790 let Inst{31-27} = 0b11101;
1791 let Inst{26-25} = 0b01;
1792 let Inst{24-21} = 0b0010;
1793 let Inst{19-16} = 0b1111; // Rn
1794 let Inst{14-12} = 0b000;
1795 let Inst{7-4} = 0b0000;
1797 def : t2InstAlias<"mov${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1798 pred:$p, zero_reg)>;
1799 def : t2InstAlias<"movs${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1801 def : t2InstAlias<"movs${p} $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
1804 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1805 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1806 AddedComplexity = 1 in
1807 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1808 "mov", ".w\t$Rd, $imm",
1809 [(set rGPR:$Rd, t2_so_imm:$imm)]>, Sched<[WriteALU]> {
1810 let Inst{31-27} = 0b11110;
1812 let Inst{24-21} = 0b0010;
1813 let Inst{19-16} = 0b1111; // Rn
1817 // cc_out is handled as part of the explicit mnemonic in the parser for 'mov'.
1818 // Use aliases to get that to play nice here.
1819 def : t2InstAlias<"movs${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1821 def : t2InstAlias<"movs${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1824 def : t2InstAlias<"mov${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1825 pred:$p, zero_reg)>;
1826 def : t2InstAlias<"mov${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1827 pred:$p, zero_reg)>;
1829 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1830 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
1831 "movw", "\t$Rd, $imm",
1832 [(set rGPR:$Rd, imm0_65535:$imm)]>, Sched<[WriteALU]> {
1833 let Inst{31-27} = 0b11110;
1835 let Inst{24-21} = 0b0010;
1836 let Inst{20} = 0; // The S bit.
1842 let Inst{11-8} = Rd;
1843 let Inst{19-16} = imm{15-12};
1844 let Inst{26} = imm{11};
1845 let Inst{14-12} = imm{10-8};
1846 let Inst{7-0} = imm{7-0};
1847 let DecoderMethod = "DecodeT2MOVTWInstruction";
1850 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1851 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1853 let Constraints = "$src = $Rd" in {
1854 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1855 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
1856 "movt", "\t$Rd, $imm",
1858 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]>,
1860 let Inst{31-27} = 0b11110;
1862 let Inst{24-21} = 0b0110;
1863 let Inst{20} = 0; // The S bit.
1869 let Inst{11-8} = Rd;
1870 let Inst{19-16} = imm{15-12};
1871 let Inst{26} = imm{11};
1872 let Inst{14-12} = imm{10-8};
1873 let Inst{7-0} = imm{7-0};
1874 let DecoderMethod = "DecodeT2MOVTWInstruction";
1877 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1878 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>,
1882 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1884 //===----------------------------------------------------------------------===//
1885 // Extend Instructions.
1890 def t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1891 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1892 def t2SXTH : T2I_ext_rrot<0b000, "sxth",
1893 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1894 def t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1896 def t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1897 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1898 def t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1899 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1900 def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
1904 let AddedComplexity = 16 in {
1905 def t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1906 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1907 def t2UXTH : T2I_ext_rrot<0b001, "uxth",
1908 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1909 def t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1910 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1912 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1913 // The transformation should probably be done as a combiner action
1914 // instead so we can include a check for masking back in the upper
1915 // eight bits of the source into the lower eight bits of the result.
1916 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1917 // (t2UXTB16 rGPR:$Src, 3)>,
1918 // Requires<[HasT2ExtractPack, IsThumb2]>;
1919 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1920 (t2UXTB16 rGPR:$Src, 1)>,
1921 Requires<[HasT2ExtractPack, IsThumb2]>;
1923 def t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1924 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1925 def t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1926 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1927 def t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">;
1930 //===----------------------------------------------------------------------===//
1931 // Arithmetic Instructions.
1934 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1935 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1936 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1937 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1939 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1941 // Currently, t2ADDS/t2SUBS are pseudo opcodes that exist only in the
1942 // selection DAG. They are "lowered" to real t2ADD/t2SUB opcodes by
1943 // AdjustInstrPostInstrSelection where we determine whether or not to
1944 // set the "s" bit based on CPSR liveness.
1946 // FIXME: Eliminate t2ADDS/t2SUBS pseudo opcodes after adding tablegen
1947 // support for an optional CPSR definition that corresponds to the DAG
1948 // node's second value. We can then eliminate the implicit def of CPSR.
1949 defm t2ADDS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1950 BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>;
1951 defm t2SUBS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1952 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1954 let hasPostISelHook = 1 in {
1955 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1956 BinOpWithFlagFrag<(ARMadde node:$LHS, node:$RHS, node:$FLAG)>, 1>;
1957 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1958 BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>>;
1962 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1963 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1965 // FIXME: Eliminate them if we can write def : Pat patterns which defines
1966 // CPSR and the implicit def of CPSR is not needed.
1967 defm t2RSBS : T2I_rbin_s_is <BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1969 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1970 // The assume-no-carry-in form uses the negation of the input since add/sub
1971 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1972 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1974 // The AddedComplexity preferences the first variant over the others since
1975 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1976 let AddedComplexity = 1 in
1977 def : T2Pat<(add GPR:$src, imm1_255_neg:$imm),
1978 (t2SUBri GPR:$src, imm1_255_neg:$imm)>;
1979 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1980 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1981 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1982 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1983 def : T2Pat<(add GPR:$src, imm0_65535_neg:$imm),
1984 (t2SUBrr GPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
1986 let AddedComplexity = 1 in
1987 def : T2Pat<(ARMaddc rGPR:$src, imm1_255_neg:$imm),
1988 (t2SUBSri rGPR:$src, imm1_255_neg:$imm)>;
1989 def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm),
1990 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1991 def : T2Pat<(ARMaddc rGPR:$src, imm0_65535_neg:$imm),
1992 (t2SUBSrr rGPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
1993 // The with-carry-in form matches bitwise not instead of the negation.
1994 // Effectively, the inverse interpretation of the carry flag already accounts
1995 // for part of the negation.
1996 let AddedComplexity = 1 in
1997 def : T2Pat<(ARMadde rGPR:$src, imm0_255_not:$imm, CPSR),
1998 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
1999 def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR),
2000 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
2001 def : T2Pat<(ARMadde rGPR:$src, imm0_65535_neg:$imm, CPSR),
2002 (t2SBCrr rGPR:$src, (t2MOVi16 (imm_not_XFORM imm:$imm)))>;
2004 // Select Bytes -- for disassembly only
2006 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2007 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []>,
2008 Requires<[IsThumb2, HasThumb2DSP]> {
2009 let Inst{31-27} = 0b11111;
2010 let Inst{26-24} = 0b010;
2012 let Inst{22-20} = 0b010;
2013 let Inst{15-12} = 0b1111;
2015 let Inst{6-4} = 0b000;
2018 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
2019 // And Miscellaneous operations -- for disassembly only
2020 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
2021 list<dag> pat = [/* For disassembly only; pattern left blank */],
2022 dag iops = (ins rGPR:$Rn, rGPR:$Rm),
2023 string asm = "\t$Rd, $Rn, $Rm">
2024 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
2025 Requires<[IsThumb2, HasThumb2DSP]> {
2026 let Inst{31-27} = 0b11111;
2027 let Inst{26-23} = 0b0101;
2028 let Inst{22-20} = op22_20;
2029 let Inst{15-12} = 0b1111;
2030 let Inst{7-4} = op7_4;
2036 let Inst{11-8} = Rd;
2037 let Inst{19-16} = Rn;
2041 // Saturating add/subtract -- for disassembly only
2043 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
2044 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))],
2045 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2046 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
2047 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
2048 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
2049 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [],
2050 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2051 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [],
2052 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2053 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
2054 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
2055 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))],
2056 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
2057 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
2058 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
2059 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
2060 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
2061 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
2062 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
2063 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
2064 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
2066 // Signed/Unsigned add/subtract -- for disassembly only
2068 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
2069 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
2070 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
2071 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
2072 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
2073 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
2074 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
2075 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
2076 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
2077 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
2078 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
2079 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
2081 // Signed/Unsigned halving add/subtract -- for disassembly only
2083 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
2084 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
2085 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
2086 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
2087 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
2088 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
2089 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
2090 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
2091 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
2092 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
2093 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
2094 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
2096 // Helper class for disassembly only
2097 // A6.3.16 & A6.3.17
2098 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
2099 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2100 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2101 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2102 let Inst{31-27} = 0b11111;
2103 let Inst{26-24} = 0b011;
2104 let Inst{23} = long;
2105 let Inst{22-20} = op22_20;
2106 let Inst{7-4} = op7_4;
2109 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
2110 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
2111 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
2112 let Inst{31-27} = 0b11111;
2113 let Inst{26-24} = 0b011;
2114 let Inst{23} = long;
2115 let Inst{22-20} = op22_20;
2116 let Inst{7-4} = op7_4;
2119 // Unsigned Sum of Absolute Differences [and Accumulate].
2120 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2121 (ins rGPR:$Rn, rGPR:$Rm),
2122 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>,
2123 Requires<[IsThumb2, HasThumb2DSP]> {
2124 let Inst{15-12} = 0b1111;
2126 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
2127 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
2128 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>,
2129 Requires<[IsThumb2, HasThumb2DSP]>;
2131 // Signed/Unsigned saturate.
2132 class T2SatI<dag oops, dag iops, InstrItinClass itin,
2133 string opc, string asm, list<dag> pattern>
2134 : T2I<oops, iops, itin, opc, asm, pattern> {
2140 let Inst{11-8} = Rd;
2141 let Inst{19-16} = Rn;
2142 let Inst{4-0} = sat_imm;
2143 let Inst{21} = sh{5};
2144 let Inst{14-12} = sh{4-2};
2145 let Inst{7-6} = sh{1-0};
2150 (ins imm1_32:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2151 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2152 let Inst{31-27} = 0b11110;
2153 let Inst{25-22} = 0b1100;
2159 def t2SSAT16: T2SatI<
2160 (outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary,
2161 "ssat16", "\t$Rd, $sat_imm, $Rn", []>,
2162 Requires<[IsThumb2, HasThumb2DSP]> {
2163 let Inst{31-27} = 0b11110;
2164 let Inst{25-22} = 0b1100;
2167 let Inst{21} = 1; // sh = '1'
2168 let Inst{14-12} = 0b000; // imm3 = '000'
2169 let Inst{7-6} = 0b00; // imm2 = '00'
2170 let Inst{5-4} = 0b00;
2175 (ins imm0_31:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
2176 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2177 let Inst{31-27} = 0b11110;
2178 let Inst{25-22} = 0b1110;
2183 def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins imm0_15:$sat_imm, rGPR:$Rn),
2185 "usat16", "\t$Rd, $sat_imm, $Rn", []>,
2186 Requires<[IsThumb2, HasThumb2DSP]> {
2187 let Inst{31-22} = 0b1111001110;
2190 let Inst{21} = 1; // sh = '1'
2191 let Inst{14-12} = 0b000; // imm3 = '000'
2192 let Inst{7-6} = 0b00; // imm2 = '00'
2193 let Inst{5-4} = 0b00;
2196 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
2197 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
2199 //===----------------------------------------------------------------------===//
2200 // Shift and rotate Instructions.
2203 defm t2LSL : T2I_sh_ir<0b00, "lsl", imm0_31,
2204 BinOpFrag<(shl node:$LHS, node:$RHS)>>;
2205 defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr,
2206 BinOpFrag<(srl node:$LHS, node:$RHS)>>;
2207 defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr,
2208 BinOpFrag<(sra node:$LHS, node:$RHS)>>;
2209 defm t2ROR : T2I_sh_ir<0b11, "ror", imm0_31,
2210 BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
2212 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
2213 def : T2Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
2214 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
2216 let Uses = [CPSR] in {
2217 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2218 "rrx", "\t$Rd, $Rm",
2219 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]>, Sched<[WriteALU]> {
2220 let Inst{31-27} = 0b11101;
2221 let Inst{26-25} = 0b01;
2222 let Inst{24-21} = 0b0010;
2223 let Inst{19-16} = 0b1111; // Rn
2224 let Inst{14-12} = 0b000;
2225 let Inst{7-4} = 0b0011;
2229 let isCodeGenOnly = 1, Defs = [CPSR] in {
2230 def t2MOVsrl_flag : T2TwoRegShiftImm<
2231 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2232 "lsrs", ".w\t$Rd, $Rm, #1",
2233 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]>,
2235 let Inst{31-27} = 0b11101;
2236 let Inst{26-25} = 0b01;
2237 let Inst{24-21} = 0b0010;
2238 let Inst{20} = 1; // The S bit.
2239 let Inst{19-16} = 0b1111; // Rn
2240 let Inst{5-4} = 0b01; // Shift type.
2241 // Shift amount = Inst{14-12:7-6} = 1.
2242 let Inst{14-12} = 0b000;
2243 let Inst{7-6} = 0b01;
2245 def t2MOVsra_flag : T2TwoRegShiftImm<
2246 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2247 "asrs", ".w\t$Rd, $Rm, #1",
2248 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]>,
2250 let Inst{31-27} = 0b11101;
2251 let Inst{26-25} = 0b01;
2252 let Inst{24-21} = 0b0010;
2253 let Inst{20} = 1; // The S bit.
2254 let Inst{19-16} = 0b1111; // Rn
2255 let Inst{5-4} = 0b10; // Shift type.
2256 // Shift amount = Inst{14-12:7-6} = 1.
2257 let Inst{14-12} = 0b000;
2258 let Inst{7-6} = 0b01;
2262 //===----------------------------------------------------------------------===//
2263 // Bitwise Instructions.
2266 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2267 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2268 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2269 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2270 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2271 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2272 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2273 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2274 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2276 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2277 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2278 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2280 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2281 string opc, string asm, list<dag> pattern>
2282 : T2I<oops, iops, itin, opc, asm, pattern> {
2287 let Inst{11-8} = Rd;
2288 let Inst{4-0} = msb{4-0};
2289 let Inst{14-12} = lsb{4-2};
2290 let Inst{7-6} = lsb{1-0};
2293 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2294 string opc, string asm, list<dag> pattern>
2295 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2298 let Inst{19-16} = Rn;
2301 let Constraints = "$src = $Rd" in
2302 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2303 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2304 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2305 let Inst{31-27} = 0b11110;
2306 let Inst{26} = 0; // should be 0.
2308 let Inst{24-20} = 0b10110;
2309 let Inst{19-16} = 0b1111; // Rn
2311 let Inst{5} = 0; // should be 0.
2314 let msb{4-0} = imm{9-5};
2315 let lsb{4-0} = imm{4-0};
2318 def t2SBFX: T2TwoRegBitFI<
2319 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2320 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2321 let Inst{31-27} = 0b11110;
2323 let Inst{24-20} = 0b10100;
2327 def t2UBFX: T2TwoRegBitFI<
2328 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2329 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2330 let Inst{31-27} = 0b11110;
2332 let Inst{24-20} = 0b11100;
2336 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2337 let Constraints = "$src = $Rd" in {
2338 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2339 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2340 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2341 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2342 bf_inv_mask_imm:$imm))]> {
2343 let Inst{31-27} = 0b11110;
2344 let Inst{26} = 0; // should be 0.
2346 let Inst{24-20} = 0b10110;
2348 let Inst{5} = 0; // should be 0.
2351 let msb{4-0} = imm{9-5};
2352 let lsb{4-0} = imm{4-0};
2356 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2357 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2358 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
2360 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
2361 /// unary operation that produces a value. These are predicable and can be
2362 /// changed to modify CPSR.
2363 multiclass T2I_un_irs<bits<4> opcod, string opc,
2364 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
2366 bit Cheap = 0, bit ReMat = 0, bit MoveImm = 0> {
2368 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
2370 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]>, Sched<[WriteALU]> {
2371 let isAsCheapAsAMove = Cheap;
2372 let isReMaterializable = ReMat;
2373 let isMoveImm = MoveImm;
2374 let Inst{31-27} = 0b11110;
2376 let Inst{24-21} = opcod;
2377 let Inst{19-16} = 0b1111; // Rn
2381 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
2382 opc, ".w\t$Rd, $Rm",
2383 [(set rGPR:$Rd, (opnode rGPR:$Rm))]>, Sched<[WriteALU]> {
2384 let Inst{31-27} = 0b11101;
2385 let Inst{26-25} = 0b01;
2386 let Inst{24-21} = opcod;
2387 let Inst{19-16} = 0b1111; // Rn
2388 let Inst{14-12} = 0b000; // imm3
2389 let Inst{7-6} = 0b00; // imm2
2390 let Inst{5-4} = 0b00; // type
2393 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
2394 opc, ".w\t$Rd, $ShiftedRm",
2395 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]>,
2397 let Inst{31-27} = 0b11101;
2398 let Inst{26-25} = 0b01;
2399 let Inst{24-21} = opcod;
2400 let Inst{19-16} = 0b1111; // Rn
2404 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2405 let AddedComplexity = 1 in
2406 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2407 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2408 UnOpFrag<(not node:$Src)>, 1, 1, 1>;
2410 let AddedComplexity = 1 in
2411 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2412 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2414 // top16Zero - answer true if the upper 16 bits of $src are 0, false otherwise
2415 def top16Zero: PatLeaf<(i32 rGPR:$src), [{
2416 return CurDAG->MaskedValueIsZero(SDValue(N,0), APInt::getHighBitsSet(32, 16));
2419 // so_imm_notSext is needed instead of so_imm_not, as the value of imm
2420 // will match the extended, not the original bitWidth for $src.
2421 def : T2Pat<(and top16Zero:$src, t2_so_imm_notSext:$imm),
2422 (t2BICri rGPR:$src, t2_so_imm_notSext:$imm)>;
2425 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2426 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2427 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2428 Requires<[IsThumb2]>;
2430 def : T2Pat<(t2_so_imm_not:$src),
2431 (t2MVNi t2_so_imm_not:$src)>;
2433 //===----------------------------------------------------------------------===//
2434 // Multiply Instructions.
2436 let isCommutable = 1 in
2437 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2438 "mul", "\t$Rd, $Rn, $Rm",
2439 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2440 let Inst{31-27} = 0b11111;
2441 let Inst{26-23} = 0b0110;
2442 let Inst{22-20} = 0b000;
2443 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2444 let Inst{7-4} = 0b0000; // Multiply
2447 def t2MLA: T2FourReg<
2448 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2449 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2450 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]>,
2451 Requires<[IsThumb2, UseMulOps]> {
2452 let Inst{31-27} = 0b11111;
2453 let Inst{26-23} = 0b0110;
2454 let Inst{22-20} = 0b000;
2455 let Inst{7-4} = 0b0000; // Multiply
2458 def t2MLS: T2FourReg<
2459 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2460 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2461 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]>,
2462 Requires<[IsThumb2, UseMulOps]> {
2463 let Inst{31-27} = 0b11111;
2464 let Inst{26-23} = 0b0110;
2465 let Inst{22-20} = 0b000;
2466 let Inst{7-4} = 0b0001; // Multiply and Subtract
2469 // Extra precision multiplies with low / high results
2470 let neverHasSideEffects = 1 in {
2471 let isCommutable = 1 in {
2472 def t2SMULL : T2MulLong<0b000, 0b0000,
2473 (outs rGPR:$RdLo, rGPR:$RdHi),
2474 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2475 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2477 def t2UMULL : T2MulLong<0b010, 0b0000,
2478 (outs rGPR:$RdLo, rGPR:$RdHi),
2479 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2480 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2483 // Multiply + accumulate
2484 def t2SMLAL : T2MlaLong<0b100, 0b0000,
2485 (outs rGPR:$RdLo, rGPR:$RdHi),
2486 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi), IIC_iMAC64,
2487 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2488 RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">;
2490 def t2UMLAL : T2MlaLong<0b110, 0b0000,
2491 (outs rGPR:$RdLo, rGPR:$RdHi),
2492 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi), IIC_iMAC64,
2493 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2494 RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">;
2496 def t2UMAAL : T2MulLong<0b110, 0b0110,
2497 (outs rGPR:$RdLo, rGPR:$RdHi),
2498 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2499 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2500 Requires<[IsThumb2, HasThumb2DSP]>;
2501 } // neverHasSideEffects
2503 // Rounding variants of the below included for disassembly only
2505 // Most significant word multiply
2506 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2507 "smmul", "\t$Rd, $Rn, $Rm",
2508 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]>,
2509 Requires<[IsThumb2, HasThumb2DSP]> {
2510 let Inst{31-27} = 0b11111;
2511 let Inst{26-23} = 0b0110;
2512 let Inst{22-20} = 0b101;
2513 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2514 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2517 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2518 "smmulr", "\t$Rd, $Rn, $Rm", []>,
2519 Requires<[IsThumb2, HasThumb2DSP]> {
2520 let Inst{31-27} = 0b11111;
2521 let Inst{26-23} = 0b0110;
2522 let Inst{22-20} = 0b101;
2523 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2524 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2527 def t2SMMLA : T2FourReg<
2528 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2529 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2530 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>,
2531 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2532 let Inst{31-27} = 0b11111;
2533 let Inst{26-23} = 0b0110;
2534 let Inst{22-20} = 0b101;
2535 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2538 def t2SMMLAR: T2FourReg<
2539 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2540 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
2541 Requires<[IsThumb2, HasThumb2DSP]> {
2542 let Inst{31-27} = 0b11111;
2543 let Inst{26-23} = 0b0110;
2544 let Inst{22-20} = 0b101;
2545 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2548 def t2SMMLS: T2FourReg<
2549 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2550 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2551 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>,
2552 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2553 let Inst{31-27} = 0b11111;
2554 let Inst{26-23} = 0b0110;
2555 let Inst{22-20} = 0b110;
2556 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2559 def t2SMMLSR:T2FourReg<
2560 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2561 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
2562 Requires<[IsThumb2, HasThumb2DSP]> {
2563 let Inst{31-27} = 0b11111;
2564 let Inst{26-23} = 0b0110;
2565 let Inst{22-20} = 0b110;
2566 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2569 multiclass T2I_smul<string opc, PatFrag opnode> {
2570 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2571 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2572 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2573 (sext_inreg rGPR:$Rm, i16)))]>,
2574 Requires<[IsThumb2, HasThumb2DSP]> {
2575 let Inst{31-27} = 0b11111;
2576 let Inst{26-23} = 0b0110;
2577 let Inst{22-20} = 0b001;
2578 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2579 let Inst{7-6} = 0b00;
2580 let Inst{5-4} = 0b00;
2583 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2584 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2585 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2586 (sra rGPR:$Rm, (i32 16))))]>,
2587 Requires<[IsThumb2, HasThumb2DSP]> {
2588 let Inst{31-27} = 0b11111;
2589 let Inst{26-23} = 0b0110;
2590 let Inst{22-20} = 0b001;
2591 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2592 let Inst{7-6} = 0b00;
2593 let Inst{5-4} = 0b01;
2596 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2597 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2598 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2599 (sext_inreg rGPR:$Rm, i16)))]>,
2600 Requires<[IsThumb2, HasThumb2DSP]> {
2601 let Inst{31-27} = 0b11111;
2602 let Inst{26-23} = 0b0110;
2603 let Inst{22-20} = 0b001;
2604 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2605 let Inst{7-6} = 0b00;
2606 let Inst{5-4} = 0b10;
2609 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2610 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2611 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2612 (sra rGPR:$Rm, (i32 16))))]>,
2613 Requires<[IsThumb2, HasThumb2DSP]> {
2614 let Inst{31-27} = 0b11111;
2615 let Inst{26-23} = 0b0110;
2616 let Inst{22-20} = 0b001;
2617 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2618 let Inst{7-6} = 0b00;
2619 let Inst{5-4} = 0b11;
2622 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2623 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2624 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2625 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]>,
2626 Requires<[IsThumb2, HasThumb2DSP]> {
2627 let Inst{31-27} = 0b11111;
2628 let Inst{26-23} = 0b0110;
2629 let Inst{22-20} = 0b011;
2630 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2631 let Inst{7-6} = 0b00;
2632 let Inst{5-4} = 0b00;
2635 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2636 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2637 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2638 (sra rGPR:$Rm, (i32 16))), (i32 16)))]>,
2639 Requires<[IsThumb2, HasThumb2DSP]> {
2640 let Inst{31-27} = 0b11111;
2641 let Inst{26-23} = 0b0110;
2642 let Inst{22-20} = 0b011;
2643 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2644 let Inst{7-6} = 0b00;
2645 let Inst{5-4} = 0b01;
2650 multiclass T2I_smla<string opc, PatFrag opnode> {
2652 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2653 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2654 [(set rGPR:$Rd, (add rGPR:$Ra,
2655 (opnode (sext_inreg rGPR:$Rn, i16),
2656 (sext_inreg rGPR:$Rm, i16))))]>,
2657 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2658 let Inst{31-27} = 0b11111;
2659 let Inst{26-23} = 0b0110;
2660 let Inst{22-20} = 0b001;
2661 let Inst{7-6} = 0b00;
2662 let Inst{5-4} = 0b00;
2666 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2667 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2668 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2669 (sra rGPR:$Rm, (i32 16)))))]>,
2670 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2671 let Inst{31-27} = 0b11111;
2672 let Inst{26-23} = 0b0110;
2673 let Inst{22-20} = 0b001;
2674 let Inst{7-6} = 0b00;
2675 let Inst{5-4} = 0b01;
2679 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2680 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2681 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2682 (sext_inreg rGPR:$Rm, i16))))]>,
2683 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2684 let Inst{31-27} = 0b11111;
2685 let Inst{26-23} = 0b0110;
2686 let Inst{22-20} = 0b001;
2687 let Inst{7-6} = 0b00;
2688 let Inst{5-4} = 0b10;
2692 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2693 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2694 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2695 (sra rGPR:$Rm, (i32 16)))))]>,
2696 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2697 let Inst{31-27} = 0b11111;
2698 let Inst{26-23} = 0b0110;
2699 let Inst{22-20} = 0b001;
2700 let Inst{7-6} = 0b00;
2701 let Inst{5-4} = 0b11;
2705 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2706 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2707 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2708 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]>,
2709 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2710 let Inst{31-27} = 0b11111;
2711 let Inst{26-23} = 0b0110;
2712 let Inst{22-20} = 0b011;
2713 let Inst{7-6} = 0b00;
2714 let Inst{5-4} = 0b00;
2718 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2719 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2720 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2721 (sra rGPR:$Rm, (i32 16))), (i32 16))))]>,
2722 Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
2723 let Inst{31-27} = 0b11111;
2724 let Inst{26-23} = 0b0110;
2725 let Inst{22-20} = 0b011;
2726 let Inst{7-6} = 0b00;
2727 let Inst{5-4} = 0b01;
2731 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2732 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2734 // Halfword multiple accumulate long: SMLAL<x><y>
2735 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2736 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2737 [/* For disassembly only; pattern left blank */]>,
2738 Requires<[IsThumb2, HasThumb2DSP]>;
2739 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2740 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2741 [/* For disassembly only; pattern left blank */]>,
2742 Requires<[IsThumb2, HasThumb2DSP]>;
2743 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2744 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2745 [/* For disassembly only; pattern left blank */]>,
2746 Requires<[IsThumb2, HasThumb2DSP]>;
2747 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2748 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2749 [/* For disassembly only; pattern left blank */]>,
2750 Requires<[IsThumb2, HasThumb2DSP]>;
2752 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2753 def t2SMUAD: T2ThreeReg_mac<
2754 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2755 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>,
2756 Requires<[IsThumb2, HasThumb2DSP]> {
2757 let Inst{15-12} = 0b1111;
2759 def t2SMUADX:T2ThreeReg_mac<
2760 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2761 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []>,
2762 Requires<[IsThumb2, HasThumb2DSP]> {
2763 let Inst{15-12} = 0b1111;
2765 def t2SMUSD: T2ThreeReg_mac<
2766 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2767 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []>,
2768 Requires<[IsThumb2, HasThumb2DSP]> {
2769 let Inst{15-12} = 0b1111;
2771 def t2SMUSDX:T2ThreeReg_mac<
2772 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2773 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []>,
2774 Requires<[IsThumb2, HasThumb2DSP]> {
2775 let Inst{15-12} = 0b1111;
2777 def t2SMLAD : T2FourReg_mac<
2778 0, 0b010, 0b0000, (outs rGPR:$Rd),
2779 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2780 "\t$Rd, $Rn, $Rm, $Ra", []>,
2781 Requires<[IsThumb2, HasThumb2DSP]>;
2782 def t2SMLADX : T2FourReg_mac<
2783 0, 0b010, 0b0001, (outs rGPR:$Rd),
2784 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2785 "\t$Rd, $Rn, $Rm, $Ra", []>,
2786 Requires<[IsThumb2, HasThumb2DSP]>;
2787 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2788 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2789 "\t$Rd, $Rn, $Rm, $Ra", []>,
2790 Requires<[IsThumb2, HasThumb2DSP]>;
2791 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2792 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2793 "\t$Rd, $Rn, $Rm, $Ra", []>,
2794 Requires<[IsThumb2, HasThumb2DSP]>;
2795 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2796 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64, "smlald",
2797 "\t$Ra, $Rd, $Rn, $Rm", []>,
2798 Requires<[IsThumb2, HasThumb2DSP]>;
2799 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2800 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaldx",
2801 "\t$Ra, $Rd, $Rn, $Rm", []>,
2802 Requires<[IsThumb2, HasThumb2DSP]>;
2803 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2804 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlsld",
2805 "\t$Ra, $Rd, $Rn, $Rm", []>,
2806 Requires<[IsThumb2, HasThumb2DSP]>;
2807 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2808 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2809 "\t$Ra, $Rd, $Rn, $Rm", []>,
2810 Requires<[IsThumb2, HasThumb2DSP]>;
2812 //===----------------------------------------------------------------------===//
2813 // Division Instructions.
2814 // Signed and unsigned division on v7-M
2816 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV,
2817 "sdiv", "\t$Rd, $Rn, $Rm",
2818 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
2819 Requires<[HasDivide, IsThumb2]> {
2820 let Inst{31-27} = 0b11111;
2821 let Inst{26-21} = 0b011100;
2823 let Inst{15-12} = 0b1111;
2824 let Inst{7-4} = 0b1111;
2827 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV,
2828 "udiv", "\t$Rd, $Rn, $Rm",
2829 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
2830 Requires<[HasDivide, IsThumb2]> {
2831 let Inst{31-27} = 0b11111;
2832 let Inst{26-21} = 0b011101;
2834 let Inst{15-12} = 0b1111;
2835 let Inst{7-4} = 0b1111;
2838 //===----------------------------------------------------------------------===//
2839 // Misc. Arithmetic Instructions.
2842 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2843 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2844 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2845 let Inst{31-27} = 0b11111;
2846 let Inst{26-22} = 0b01010;
2847 let Inst{21-20} = op1;
2848 let Inst{15-12} = 0b1111;
2849 let Inst{7-6} = 0b10;
2850 let Inst{5-4} = op2;
2854 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2855 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>,
2858 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2859 "rbit", "\t$Rd, $Rm",
2860 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>,
2863 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2864 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>,
2867 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2868 "rev16", ".w\t$Rd, $Rm",
2869 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>,
2872 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2873 "revsh", ".w\t$Rd, $Rm",
2874 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>,
2877 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
2878 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
2879 (t2REVSH rGPR:$Rm)>;
2881 def t2PKHBT : T2ThreeReg<
2882 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_lsl_amt:$sh),
2883 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
2884 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2885 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
2887 Requires<[HasT2ExtractPack, IsThumb2]>,
2888 Sched<[WriteALUsi, ReadALU]> {
2889 let Inst{31-27} = 0b11101;
2890 let Inst{26-25} = 0b01;
2891 let Inst{24-20} = 0b01100;
2892 let Inst{5} = 0; // BT form
2896 let Inst{14-12} = sh{4-2};
2897 let Inst{7-6} = sh{1-0};
2900 // Alternate cases for PKHBT where identities eliminate some nodes.
2901 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2902 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2903 Requires<[HasT2ExtractPack, IsThumb2]>;
2904 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2905 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2906 Requires<[HasT2ExtractPack, IsThumb2]>;
2908 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2909 // will match the pattern below.
2910 def t2PKHTB : T2ThreeReg<
2911 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_asr_amt:$sh),
2912 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
2913 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2914 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
2916 Requires<[HasT2ExtractPack, IsThumb2]>,
2917 Sched<[WriteALUsi, ReadALU]> {
2918 let Inst{31-27} = 0b11101;
2919 let Inst{26-25} = 0b01;
2920 let Inst{24-20} = 0b01100;
2921 let Inst{5} = 1; // TB form
2925 let Inst{14-12} = sh{4-2};
2926 let Inst{7-6} = sh{1-0};
2929 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2930 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2931 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2932 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2933 Requires<[HasT2ExtractPack, IsThumb2]>;
2934 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2935 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2936 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
2937 Requires<[HasT2ExtractPack, IsThumb2]>;
2939 //===----------------------------------------------------------------------===//
2940 // Comparison Instructions...
2942 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2943 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2944 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2946 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm),
2947 (t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>;
2948 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, rGPR:$rhs),
2949 (t2CMPrr GPRnopc:$lhs, rGPR:$rhs)>;
2950 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg:$rhs),
2951 (t2CMPrs GPRnopc:$lhs, t2_so_reg:$rhs)>;
2953 let isCompare = 1, Defs = [CPSR] in {
2955 def t2CMNri : T2OneRegCmpImm<
2956 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iCMPi,
2957 "cmn", ".w\t$Rn, $imm",
2958 [(ARMcmn GPRnopc:$Rn, (ineg t2_so_imm:$imm))]>,
2959 Sched<[WriteCMP, ReadALU]> {
2960 let Inst{31-27} = 0b11110;
2962 let Inst{24-21} = 0b1000;
2963 let Inst{20} = 1; // The S bit.
2965 let Inst{11-8} = 0b1111; // Rd
2968 def t2CMNzrr : T2TwoRegCmp<
2969 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iCMPr,
2970 "cmn", ".w\t$Rn, $Rm",
2971 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
2972 GPRnopc:$Rn, rGPR:$Rm)]>, Sched<[WriteCMP, ReadALU, ReadALU]> {
2973 let Inst{31-27} = 0b11101;
2974 let Inst{26-25} = 0b01;
2975 let Inst{24-21} = 0b1000;
2976 let Inst{20} = 1; // The S bit.
2977 let Inst{14-12} = 0b000; // imm3
2978 let Inst{11-8} = 0b1111; // Rd
2979 let Inst{7-6} = 0b00; // imm2
2980 let Inst{5-4} = 0b00; // type
2983 def t2CMNzrs : T2OneRegCmpShiftedReg<
2984 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), IIC_iCMPsi,
2985 "cmn", ".w\t$Rn, $ShiftedRm",
2986 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
2987 GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]>,
2988 Sched<[WriteCMPsi, ReadALU, ReadALU]> {
2989 let Inst{31-27} = 0b11101;
2990 let Inst{26-25} = 0b01;
2991 let Inst{24-21} = 0b1000;
2992 let Inst{20} = 1; // The S bit.
2993 let Inst{11-8} = 0b1111; // Rd
2997 // Assembler aliases w/o the ".w" suffix.
2998 // No alias here for 'rr' version as not all instantiations of this multiclass
2999 // want one (CMP in particular, does not).
3000 def : t2InstAlias<"cmn${p} $Rn, $imm",
3001 (t2CMNri GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>;
3002 def : t2InstAlias<"cmn${p} $Rn, $shift",
3003 (t2CMNzrs GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>;
3005 def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
3006 (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
3008 def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
3009 (t2CMNri GPRnopc:$src, t2_so_imm_neg:$imm)>;
3011 defm t2TST : T2I_cmp_irs<0b0000, "tst",
3012 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
3013 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
3014 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
3015 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
3016 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
3018 // Conditional moves
3019 // FIXME: should be able to write a pattern for ARMcmov, but can't use
3020 // a two-value operand where a dag node expects two operands. :(
3021 let neverHasSideEffects = 1 in {
3023 let isCommutable = 1, isSelect = 1 in
3024 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
3025 (ins rGPR:$false, rGPR:$Rm, pred:$p),
3027 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
3028 RegConstraint<"$false = $Rd">,
3031 let isMoveImm = 1 in
3032 def t2MOVCCi : t2PseudoInst<(outs rGPR:$Rd),
3033 (ins rGPR:$false, t2_so_imm:$imm, pred:$p),
3035 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
3036 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
3038 // FIXME: Pseudo-ize these. For now, just mark codegen only.
3039 let isCodeGenOnly = 1 in {
3040 let isMoveImm = 1 in
3041 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, imm0_65535_expr:$imm),
3043 "movw", "\t$Rd, $imm", []>,
3044 RegConstraint<"$false = $Rd">, Sched<[WriteALU]> {
3045 let Inst{31-27} = 0b11110;
3047 let Inst{24-21} = 0b0010;
3048 let Inst{20} = 0; // The S bit.
3054 let Inst{11-8} = Rd;
3055 let Inst{19-16} = imm{15-12};
3056 let Inst{26} = imm{11};
3057 let Inst{14-12} = imm{10-8};
3058 let Inst{7-0} = imm{7-0};
3061 let isMoveImm = 1 in
3062 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
3063 (ins rGPR:$false, i32imm:$src, pred:$p),
3064 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
3066 let isMoveImm = 1 in
3067 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
3068 IIC_iCMOVi, "mvn", "\t$Rd, $imm",
3069 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
3070 imm:$cc, CCR:$ccr))*/]>,
3071 RegConstraint<"$false = $Rd">, Sched<[WriteALU]> {
3072 let Inst{31-27} = 0b11110;
3074 let Inst{24-21} = 0b0011;
3075 let Inst{20} = 0; // The S bit.
3076 let Inst{19-16} = 0b1111; // Rn
3080 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
3081 string opc, string asm, list<dag> pattern>
3082 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern>, Sched<[WriteALU]> {
3083 let Inst{31-27} = 0b11101;
3084 let Inst{26-25} = 0b01;
3085 let Inst{24-21} = 0b0010;
3086 let Inst{20} = 0; // The S bit.
3087 let Inst{19-16} = 0b1111; // Rn
3088 let Inst{5-4} = opcod; // Shift type.
3090 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
3091 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3092 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
3093 RegConstraint<"$false = $Rd">;
3094 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
3095 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3096 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
3097 RegConstraint<"$false = $Rd">;
3098 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
3099 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3100 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
3101 RegConstraint<"$false = $Rd">;
3102 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
3103 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
3104 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
3105 RegConstraint<"$false = $Rd">;
3106 } // isCodeGenOnly = 1
3108 } // neverHasSideEffects
3110 //===----------------------------------------------------------------------===//
3111 // Atomic operations intrinsics
3114 // memory barriers protect the atomic sequences
3115 let hasSideEffects = 1 in {
3116 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
3117 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
3118 Requires<[IsThumb, HasDB]> {
3120 let Inst{31-4} = 0xf3bf8f5;
3121 let Inst{3-0} = opt;
3125 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
3126 "dsb", "\t$opt", []>,
3127 Requires<[IsThumb, HasDB]> {
3129 let Inst{31-4} = 0xf3bf8f4;
3130 let Inst{3-0} = opt;
3133 def t2ISB : AInoP<(outs), (ins instsyncb_opt:$opt), ThumbFrm, NoItinerary,
3135 []>, Requires<[IsThumb, HasDB]> {
3137 let Inst{31-4} = 0xf3bf8f6;
3138 let Inst{3-0} = opt;
3141 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
3142 InstrItinClass itin, string opc, string asm, string cstr,
3143 list<dag> pattern, bits<4> rt2 = 0b1111>
3144 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3145 let Inst{31-27} = 0b11101;
3146 let Inst{26-20} = 0b0001101;
3147 let Inst{11-8} = rt2;
3148 let Inst{7-6} = 0b01;
3149 let Inst{5-4} = opcod;
3150 let Inst{3-0} = 0b1111;
3154 let Inst{19-16} = addr;
3155 let Inst{15-12} = Rt;
3157 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
3158 InstrItinClass itin, string opc, string asm, string cstr,
3159 list<dag> pattern, bits<4> rt2 = 0b1111>
3160 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
3161 let Inst{31-27} = 0b11101;
3162 let Inst{26-20} = 0b0001100;
3163 let Inst{11-8} = rt2;
3164 let Inst{7-6} = 0b01;
3165 let Inst{5-4} = opcod;
3171 let Inst{19-16} = addr;
3172 let Inst{15-12} = Rt;
3175 let mayLoad = 1 in {
3176 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3177 AddrModeNone, 4, NoItinerary,
3178 "ldrexb", "\t$Rt, $addr", "", []>;
3179 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
3180 AddrModeNone, 4, NoItinerary,
3181 "ldrexh", "\t$Rt, $addr", "", []>;
3182 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_imm0_1020s4:$addr),
3183 AddrModeNone, 4, NoItinerary,
3184 "ldrex", "\t$Rt, $addr", "", []> {
3187 let Inst{31-27} = 0b11101;
3188 let Inst{26-20} = 0b0000101;
3189 let Inst{19-16} = addr{11-8};
3190 let Inst{15-12} = Rt;
3191 let Inst{11-8} = 0b1111;
3192 let Inst{7-0} = addr{7-0};
3194 let hasExtraDefRegAllocReq = 1 in
3195 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
3196 (ins addr_offset_none:$addr),
3197 AddrModeNone, 4, NoItinerary,
3198 "ldrexd", "\t$Rt, $Rt2, $addr", "",
3201 let Inst{11-8} = Rt2;
3205 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
3206 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
3207 (ins rGPR:$Rt, addr_offset_none:$addr),
3208 AddrModeNone, 4, NoItinerary,
3209 "strexb", "\t$Rd, $Rt, $addr", "", []>;
3210 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
3211 (ins rGPR:$Rt, addr_offset_none:$addr),
3212 AddrModeNone, 4, NoItinerary,
3213 "strexh", "\t$Rd, $Rt, $addr", "", []>;
3214 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt,
3215 t2addrmode_imm0_1020s4:$addr),
3216 AddrModeNone, 4, NoItinerary,
3217 "strex", "\t$Rd, $Rt, $addr", "",
3222 let Inst{31-27} = 0b11101;
3223 let Inst{26-20} = 0b0000100;
3224 let Inst{19-16} = addr{11-8};
3225 let Inst{15-12} = Rt;
3226 let Inst{11-8} = Rd;
3227 let Inst{7-0} = addr{7-0};
3229 let hasExtraSrcRegAllocReq = 1 in
3230 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
3231 (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr),
3232 AddrModeNone, 4, NoItinerary,
3233 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
3236 let Inst{11-8} = Rt2;
3240 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", []>,
3241 Requires<[IsThumb2, HasV7]> {
3242 let Inst{31-16} = 0xf3bf;
3243 let Inst{15-14} = 0b10;
3246 let Inst{11-8} = 0b1111;
3247 let Inst{7-4} = 0b0010;
3248 let Inst{3-0} = 0b1111;
3251 //===----------------------------------------------------------------------===//
3252 // SJLJ Exception handling intrinsics
3253 // eh_sjlj_setjmp() is an instruction sequence to store the return
3254 // address and save #0 in R0 for the non-longjmp case.
3255 // Since by its nature we may be coming from some other function to get
3256 // here, and we're using the stack frame for the containing function to
3257 // save/restore registers, we can't keep anything live in regs across
3258 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
3259 // when we get here from a longjmp(). We force everything out of registers
3260 // except for our own input by listing the relevant registers in Defs. By
3261 // doing so, we also cause the prologue/epilogue code to actively preserve
3262 // all of the callee-saved resgisters, which is exactly what we want.
3263 // $val is a scratch register for our use.
3265 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
3266 Q0, Q1, Q2, Q3, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15],
3267 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3268 usesCustomInserter = 1 in {
3269 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3270 AddrModeNone, 0, NoItinerary, "", "",
3271 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3272 Requires<[IsThumb2, HasVFP2]>;
3276 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
3277 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
3278 usesCustomInserter = 1 in {
3279 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
3280 AddrModeNone, 0, NoItinerary, "", "",
3281 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
3282 Requires<[IsThumb2, NoVFP]>;
3286 //===----------------------------------------------------------------------===//
3287 // Control-Flow Instructions
3290 // FIXME: remove when we have a way to marking a MI with these properties.
3291 // FIXME: Should pc be an implicit operand like PICADD, etc?
3292 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
3293 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
3294 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
3295 reglist:$regs, variable_ops),
3296 4, IIC_iLoad_mBr, [],
3297 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
3298 RegConstraint<"$Rn = $wb">;
3300 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
3301 let isPredicable = 1 in
3302 def t2B : T2I<(outs), (ins uncondbrtarget:$target), IIC_Br,
3304 [(br bb:$target)]>, Sched<[WriteBr]> {
3305 let Inst{31-27} = 0b11110;
3306 let Inst{15-14} = 0b10;
3310 let Inst{26} = target{19};
3311 let Inst{11} = target{18};
3312 let Inst{13} = target{17};
3313 let Inst{25-16} = target{20-11};
3314 let Inst{10-0} = target{10-0};
3315 let DecoderMethod = "DecodeT2BInstruction";
3318 let isNotDuplicable = 1, isIndirectBranch = 1 in {
3319 def t2BR_JT : t2PseudoInst<(outs),
3320 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3322 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>,
3325 // FIXME: Add a non-pc based case that can be predicated.
3326 def t2TBB_JT : t2PseudoInst<(outs),
3327 (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>,
3330 def t2TBH_JT : t2PseudoInst<(outs),
3331 (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>,
3334 def t2TBB : T2I<(outs), (ins addrmode_tbb:$addr), IIC_Br,
3335 "tbb", "\t$addr", []>, Sched<[WriteBrTbl]> {
3338 let Inst{31-20} = 0b111010001101;
3339 let Inst{19-16} = Rn;
3340 let Inst{15-5} = 0b11110000000;
3341 let Inst{4} = 0; // B form
3344 let DecoderMethod = "DecodeThumbTableBranch";
3347 def t2TBH : T2I<(outs), (ins addrmode_tbh:$addr), IIC_Br,
3348 "tbh", "\t$addr", []>, Sched<[WriteBrTbl]> {
3351 let Inst{31-20} = 0b111010001101;
3352 let Inst{19-16} = Rn;
3353 let Inst{15-5} = 0b11110000000;
3354 let Inst{4} = 1; // H form
3357 let DecoderMethod = "DecodeThumbTableBranch";
3359 } // isNotDuplicable, isIndirectBranch
3361 } // isBranch, isTerminator, isBarrier
3363 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3364 // a two-value operand where a dag node expects ", "two operands. :(
3365 let isBranch = 1, isTerminator = 1 in
3366 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3368 [/*(ARMbrcond bb:$target, imm:$cc)*/]>, Sched<[WriteBr]> {
3369 let Inst{31-27} = 0b11110;
3370 let Inst{15-14} = 0b10;
3374 let Inst{25-22} = p;
3377 let Inst{26} = target{20};
3378 let Inst{11} = target{19};
3379 let Inst{13} = target{18};
3380 let Inst{21-16} = target{17-12};
3381 let Inst{10-0} = target{11-1};
3383 let DecoderMethod = "DecodeThumb2BCCInstruction";
3386 // Tail calls. The IOS version of thumb tail calls uses a t2 branch, so
3388 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3391 def tTAILJMPd: tPseudoExpand<(outs),
3392 (ins uncondbrtarget:$dst, pred:$p),
3394 (t2B uncondbrtarget:$dst, pred:$p)>,
3395 Requires<[IsThumb2, IsIOS]>, Sched<[WriteBr]>;
3399 let Defs = [ITSTATE] in
3400 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3401 AddrModeNone, 2, IIC_iALUx,
3402 "it$mask\t$cc", "", []> {
3403 // 16-bit instruction.
3404 let Inst{31-16} = 0x0000;
3405 let Inst{15-8} = 0b10111111;
3410 let Inst{3-0} = mask;
3412 let DecoderMethod = "DecodeIT";
3415 // Branch and Exchange Jazelle -- for disassembly only
3417 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func", []>,
3420 let Inst{31-27} = 0b11110;
3422 let Inst{25-20} = 0b111100;
3423 let Inst{19-16} = func;
3424 let Inst{15-0} = 0b1000111100000000;
3427 // Compare and branch on zero / non-zero
3428 let isBranch = 1, isTerminator = 1 in {
3429 def tCBZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3430 "cbz\t$Rn, $target", []>,
3431 T1Misc<{0,0,?,1,?,?,?}>,
3432 Requires<[IsThumb2]>, Sched<[WriteBr]> {
3436 let Inst{9} = target{5};
3437 let Inst{7-3} = target{4-0};
3441 def tCBNZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3442 "cbnz\t$Rn, $target", []>,
3443 T1Misc<{1,0,?,1,?,?,?}>,
3444 Requires<[IsThumb2]>, Sched<[WriteBr]> {
3448 let Inst{9} = target{5};
3449 let Inst{7-3} = target{4-0};
3455 // Change Processor State is a system instruction.
3456 // FIXME: Since the asm parser has currently no clean way to handle optional
3457 // operands, create 3 versions of the same instruction. Once there's a clean
3458 // framework to represent optional operands, change this behavior.
3459 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3460 !strconcat("cps", asm_op), []> {
3466 let Inst{31-11} = 0b111100111010111110000;
3467 let Inst{10-9} = imod;
3469 let Inst{7-5} = iflags;
3470 let Inst{4-0} = mode;
3471 let DecoderMethod = "DecodeT2CPSInstruction";
3475 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3476 "$imod.w\t$iflags, $mode">;
3477 let mode = 0, M = 0 in
3478 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3479 "$imod.w\t$iflags">;
3480 let imod = 0, iflags = 0, M = 1 in
3481 def t2CPS1p : t2CPS<(ins imm0_31:$mode), "\t$mode">;
3483 // A6.3.4 Branches and miscellaneous control
3484 // Table A6-14 Change Processor State, and hint instructions
3485 def t2HINT : T2I<(outs), (ins imm0_4:$imm), NoItinerary, "hint", "\t$imm",[]> {
3487 let Inst{31-3} = 0b11110011101011111000000000000;
3488 let Inst{2-0} = imm;
3491 def : t2InstAlias<"hint$p.w $imm", (t2HINT imm0_4:$imm, pred:$p)>;
3492 def : t2InstAlias<"nop$p.w", (t2HINT 0, pred:$p)>;
3493 def : t2InstAlias<"yield$p.w", (t2HINT 1, pred:$p)>;
3494 def : t2InstAlias<"wfe$p.w", (t2HINT 2, pred:$p)>;
3495 def : t2InstAlias<"wfi$p.w", (t2HINT 3, pred:$p)>;
3496 def : t2InstAlias<"sev$p.w", (t2HINT 4, pred:$p)>;
3498 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
3500 let Inst{31-20} = 0b111100111010;
3501 let Inst{19-16} = 0b1111;
3502 let Inst{15-8} = 0b10000000;
3503 let Inst{7-4} = 0b1111;
3504 let Inst{3-0} = opt;
3507 // Secure Monitor Call is a system instruction.
3508 // Option = Inst{19-16}
3509 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
3510 []>, Requires<[IsThumb2, HasTrustZone]> {
3511 let Inst{31-27} = 0b11110;
3512 let Inst{26-20} = 0b1111111;
3513 let Inst{15-12} = 0b1000;
3516 let Inst{19-16} = opt;
3519 class T2SRS<bits<2> Op, bit W, dag oops, dag iops, InstrItinClass itin,
3520 string opc, string asm, list<dag> pattern>
3521 : T2I<oops, iops, itin, opc, asm, pattern> {
3523 let Inst{31-25} = 0b1110100;
3524 let Inst{24-23} = Op;
3527 let Inst{20-16} = 0b01101;
3528 let Inst{15-5} = 0b11000000000;
3529 let Inst{4-0} = mode{4-0};
3532 // Store Return State is a system instruction.
3533 def t2SRSDB_UPD : T2SRS<0b00, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3534 "srsdb", "\tsp!, $mode", []>;
3535 def t2SRSDB : T2SRS<0b00, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3536 "srsdb","\tsp, $mode", []>;
3537 def t2SRSIA_UPD : T2SRS<0b11, 1, (outs), (ins imm0_31:$mode), NoItinerary,
3538 "srsia","\tsp!, $mode", []>;
3539 def t2SRSIA : T2SRS<0b11, 0, (outs), (ins imm0_31:$mode), NoItinerary,
3540 "srsia","\tsp, $mode", []>;
3543 def : t2InstAlias<"srsdb${p} $mode", (t2SRSDB imm0_31:$mode, pred:$p)>;
3544 def : t2InstAlias<"srsdb${p} $mode!", (t2SRSDB_UPD imm0_31:$mode, pred:$p)>;
3546 def : t2InstAlias<"srsia${p} $mode", (t2SRSIA imm0_31:$mode, pred:$p)>;
3547 def : t2InstAlias<"srsia${p} $mode!", (t2SRSIA_UPD imm0_31:$mode, pred:$p)>;
3549 // Return From Exception is a system instruction.
3550 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3551 string opc, string asm, list<dag> pattern>
3552 : T2I<oops, iops, itin, opc, asm, pattern> {
3553 let Inst{31-20} = op31_20{11-0};
3556 let Inst{19-16} = Rn;
3557 let Inst{15-0} = 0xc000;
3560 def t2RFEDBW : T2RFE<0b111010000011,
3561 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3562 [/* For disassembly only; pattern left blank */]>;
3563 def t2RFEDB : T2RFE<0b111010000001,
3564 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3565 [/* For disassembly only; pattern left blank */]>;
3566 def t2RFEIAW : T2RFE<0b111010011011,
3567 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3568 [/* For disassembly only; pattern left blank */]>;
3569 def t2RFEIA : T2RFE<0b111010011001,
3570 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3571 [/* For disassembly only; pattern left blank */]>;
3573 //===----------------------------------------------------------------------===//
3574 // Non-Instruction Patterns
3577 // 32-bit immediate using movw + movt.
3578 // This is a single pseudo instruction to make it re-materializable.
3579 // FIXME: Remove this when we can do generalized remat.
3580 let isReMaterializable = 1, isMoveImm = 1 in
3581 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3582 [(set rGPR:$dst, (i32 imm:$src))]>,
3583 Requires<[IsThumb, HasV6T2]>;
3585 // Pseudo instruction that combines movw + movt + add pc (if pic).
3586 // It also makes it possible to rematerialize the instructions.
3587 // FIXME: Remove this when we can do generalized remat and when machine licm
3588 // can properly the instructions.
3589 let isReMaterializable = 1 in {
3590 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3592 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3593 Requires<[IsThumb2, UseMovt]>;
3595 def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3597 [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3598 Requires<[IsThumb2, UseMovt]>;
3601 // ConstantPool, GlobalAddress, and JumpTable
3602 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3603 Requires<[IsThumb2, DontUseMovt]>;
3604 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3605 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3606 Requires<[IsThumb2, UseMovt]>;
3608 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3609 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3611 // Pseudo instruction that combines ldr from constpool and add pc. This should
3612 // be expanded into two instructions late to allow if-conversion and
3614 let canFoldAsLoad = 1, isReMaterializable = 1 in
3615 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3617 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3619 Requires<[IsThumb2]>;
3621 // Pseudo isntruction that combines movs + predicated rsbmi
3622 // to implement integer ABS
3623 let usesCustomInserter = 1, Defs = [CPSR] in {
3624 def t2ABS : PseudoInst<(outs rGPR:$dst), (ins rGPR:$src),
3625 NoItinerary, []>, Requires<[IsThumb2]>;
3628 //===----------------------------------------------------------------------===//
3629 // Coprocessor load/store -- for disassembly only
3631 class T2CI<bits<4> op31_28, dag oops, dag iops, string opc, string asm>
3632 : T2I<oops, iops, NoItinerary, opc, asm, []> {
3633 let Inst{31-28} = op31_28;
3634 let Inst{27-25} = 0b110;
3637 multiclass t2LdStCop<bits<4> op31_28, bit load, bit Dbit, string asm> {
3638 def _OFFSET : T2CI<op31_28,
3639 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
3640 asm, "\t$cop, $CRd, $addr"> {
3644 let Inst{24} = 1; // P = 1
3645 let Inst{23} = addr{8};
3646 let Inst{22} = Dbit;
3647 let Inst{21} = 0; // W = 0
3648 let Inst{20} = load;
3649 let Inst{19-16} = addr{12-9};
3650 let Inst{15-12} = CRd;
3651 let Inst{11-8} = cop;
3652 let Inst{7-0} = addr{7-0};
3653 let DecoderMethod = "DecodeCopMemInstruction";
3655 def _PRE : T2CI<op31_28,
3656 (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5_pre:$addr),
3657 asm, "\t$cop, $CRd, $addr!"> {
3661 let Inst{24} = 1; // P = 1
3662 let Inst{23} = addr{8};
3663 let Inst{22} = Dbit;
3664 let Inst{21} = 1; // W = 1
3665 let Inst{20} = load;
3666 let Inst{19-16} = addr{12-9};
3667 let Inst{15-12} = CRd;
3668 let Inst{11-8} = cop;
3669 let Inst{7-0} = addr{7-0};
3670 let DecoderMethod = "DecodeCopMemInstruction";
3672 def _POST: T2CI<op31_28,
3673 (outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
3674 postidx_imm8s4:$offset),
3675 asm, "\t$cop, $CRd, $addr, $offset"> {
3680 let Inst{24} = 0; // P = 0
3681 let Inst{23} = offset{8};
3682 let Inst{22} = Dbit;
3683 let Inst{21} = 1; // W = 1
3684 let Inst{20} = load;
3685 let Inst{19-16} = addr;
3686 let Inst{15-12} = CRd;
3687 let Inst{11-8} = cop;
3688 let Inst{7-0} = offset{7-0};
3689 let DecoderMethod = "DecodeCopMemInstruction";
3691 def _OPTION : T2CI<op31_28, (outs),
3692 (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
3693 coproc_option_imm:$option),
3694 asm, "\t$cop, $CRd, $addr, $option"> {
3699 let Inst{24} = 0; // P = 0
3700 let Inst{23} = 1; // U = 1
3701 let Inst{22} = Dbit;
3702 let Inst{21} = 0; // W = 0
3703 let Inst{20} = load;
3704 let Inst{19-16} = addr;
3705 let Inst{15-12} = CRd;
3706 let Inst{11-8} = cop;
3707 let Inst{7-0} = option;
3708 let DecoderMethod = "DecodeCopMemInstruction";
3712 defm t2LDC : t2LdStCop<0b1110, 1, 0, "ldc">;
3713 defm t2LDCL : t2LdStCop<0b1110, 1, 1, "ldcl">;
3714 defm t2STC : t2LdStCop<0b1110, 0, 0, "stc">;
3715 defm t2STCL : t2LdStCop<0b1110, 0, 1, "stcl">;
3716 defm t2LDC2 : t2LdStCop<0b1111, 1, 0, "ldc2">;
3717 defm t2LDC2L : t2LdStCop<0b1111, 1, 1, "ldc2l">;
3718 defm t2STC2 : t2LdStCop<0b1111, 0, 0, "stc2">;
3719 defm t2STC2L : t2LdStCop<0b1111, 0, 1, "stc2l">;
3722 //===----------------------------------------------------------------------===//
3723 // Move between special register and ARM core register -- for disassembly only
3725 // Move to ARM core register from Special Register
3729 // A/R class can only move from CPSR or SPSR.
3730 def t2MRS_AR : T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, apsr",
3731 []>, Requires<[IsThumb2,IsARClass]> {
3733 let Inst{31-12} = 0b11110011111011111000;
3734 let Inst{11-8} = Rd;
3735 let Inst{7-0} = 0b0000;
3738 def : t2InstAlias<"mrs${p} $Rd, cpsr", (t2MRS_AR GPR:$Rd, pred:$p)>;
3740 def t2MRSsys_AR: T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3741 []>, Requires<[IsThumb2,IsARClass]> {
3743 let Inst{31-12} = 0b11110011111111111000;
3744 let Inst{11-8} = Rd;
3745 let Inst{7-0} = 0b0000;
3750 // This MRS has a mask field in bits 7-0 and can take more values than
3751 // the A/R class (a full msr_mask).
3752 def t2MRS_M : T2I<(outs rGPR:$Rd), (ins msr_mask:$mask), NoItinerary,
3753 "mrs", "\t$Rd, $mask", []>,
3754 Requires<[IsThumb,IsMClass]> {
3757 let Inst{31-12} = 0b11110011111011111000;
3758 let Inst{11-8} = Rd;
3759 let Inst{19-16} = 0b1111;
3760 let Inst{7-0} = mask;
3764 // Move from ARM core register to Special Register
3768 // No need to have both system and application versions, the encodings are the
3769 // same and the assembly parser has no way to distinguish between them. The mask
3770 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3771 // the mask with the fields to be accessed in the special register.
3772 def t2MSR_AR : T2I<(outs), (ins msr_mask:$mask, rGPR:$Rn),
3773 NoItinerary, "msr", "\t$mask, $Rn", []>,
3774 Requires<[IsThumb2,IsARClass]> {
3777 let Inst{31-21} = 0b11110011100;
3778 let Inst{20} = mask{4}; // R Bit
3779 let Inst{19-16} = Rn;
3780 let Inst{15-12} = 0b1000;
3781 let Inst{11-8} = mask{3-0};
3787 // Move from ARM core register to Special Register
3788 def t2MSR_M : T2I<(outs), (ins msr_mask:$SYSm, rGPR:$Rn),
3789 NoItinerary, "msr", "\t$SYSm, $Rn", []>,
3790 Requires<[IsThumb,IsMClass]> {
3793 let Inst{31-21} = 0b11110011100;
3795 let Inst{19-16} = Rn;
3796 let Inst{15-12} = 0b1000;
3797 let Inst{11-0} = SYSm;
3801 //===----------------------------------------------------------------------===//
3802 // Move between coprocessor and ARM core register
3805 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
3807 : T2Cop<Op, oops, iops,
3808 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3810 let Inst{27-24} = 0b1110;
3811 let Inst{20} = direction;
3821 let Inst{15-12} = Rt;
3822 let Inst{11-8} = cop;
3823 let Inst{23-21} = opc1;
3824 let Inst{7-5} = opc2;
3825 let Inst{3-0} = CRm;
3826 let Inst{19-16} = CRn;
3829 class t2MovRRCopro<bits<4> Op, string opc, bit direction,
3830 list<dag> pattern = []>
3832 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3833 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
3834 let Inst{27-24} = 0b1100;
3835 let Inst{23-21} = 0b010;
3836 let Inst{20} = direction;
3844 let Inst{15-12} = Rt;
3845 let Inst{19-16} = Rt2;
3846 let Inst{11-8} = cop;
3847 let Inst{7-4} = opc1;
3848 let Inst{3-0} = CRm;
3851 /* from ARM core register to coprocessor */
3852 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
3854 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3855 c_imm:$CRm, imm0_7:$opc2),
3856 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3857 imm:$CRm, imm:$opc2)]>;
3858 def : t2InstAlias<"mcr $cop, $opc1, $Rt, $CRn, $CRm",
3859 (t2MCR p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3861 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
3862 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3863 c_imm:$CRm, imm0_7:$opc2),
3864 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3865 imm:$CRm, imm:$opc2)]>;
3866 def : t2InstAlias<"mcr2 $cop, $opc1, $Rt, $CRn, $CRm",
3867 (t2MCR2 p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3870 /* from coprocessor to ARM core register */
3871 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
3872 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3873 c_imm:$CRm, imm0_7:$opc2), []>;
3874 def : t2InstAlias<"mrc $cop, $opc1, $Rt, $CRn, $CRm",
3875 (t2MRC GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3878 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
3879 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3880 c_imm:$CRm, imm0_7:$opc2), []>;
3881 def : t2InstAlias<"mrc2 $cop, $opc1, $Rt, $CRn, $CRm",
3882 (t2MRC2 GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3885 def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3886 (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3888 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3889 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3892 /* from ARM core register to coprocessor */
3893 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0,
3894 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
3896 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0,
3897 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
3898 GPR:$Rt2, imm:$CRm)]>;
3899 /* from coprocessor to ARM core register */
3900 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>;
3902 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1>;
3904 //===----------------------------------------------------------------------===//
3905 // Other Coprocessor Instructions.
3908 def tCDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3909 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3910 "cdp\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3911 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3912 imm:$CRm, imm:$opc2)]> {
3913 let Inst{27-24} = 0b1110;
3922 let Inst{3-0} = CRm;
3924 let Inst{7-5} = opc2;
3925 let Inst{11-8} = cop;
3926 let Inst{15-12} = CRd;
3927 let Inst{19-16} = CRn;
3928 let Inst{23-20} = opc1;
3931 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3932 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3933 "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3934 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3935 imm:$CRm, imm:$opc2)]> {
3936 let Inst{27-24} = 0b1110;
3945 let Inst{3-0} = CRm;
3947 let Inst{7-5} = opc2;
3948 let Inst{11-8} = cop;
3949 let Inst{15-12} = CRd;
3950 let Inst{19-16} = CRn;
3951 let Inst{23-20} = opc1;
3956 //===----------------------------------------------------------------------===//
3957 // Non-Instruction Patterns
3960 // SXT/UXT with no rotate
3961 let AddedComplexity = 16 in {
3962 def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>,
3963 Requires<[IsThumb2]>;
3964 def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>,
3965 Requires<[IsThumb2]>;
3966 def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>,
3967 Requires<[HasT2ExtractPack, IsThumb2]>;
3968 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)),
3969 (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3970 Requires<[HasT2ExtractPack, IsThumb2]>;
3971 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)),
3972 (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3973 Requires<[HasT2ExtractPack, IsThumb2]>;
3976 def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>,
3977 Requires<[IsThumb2]>;
3978 def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>,
3979 Requires<[IsThumb2]>;
3980 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)),
3981 (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3982 Requires<[HasT2ExtractPack, IsThumb2]>;
3983 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)),
3984 (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3985 Requires<[HasT2ExtractPack, IsThumb2]>;
3987 // Atomic load/store patterns
3988 def : T2Pat<(atomic_load_8 t2addrmode_imm12:$addr),
3989 (t2LDRBi12 t2addrmode_imm12:$addr)>;
3990 def : T2Pat<(atomic_load_8 t2addrmode_negimm8:$addr),
3991 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
3992 def : T2Pat<(atomic_load_8 t2addrmode_so_reg:$addr),
3993 (t2LDRBs t2addrmode_so_reg:$addr)>;
3994 def : T2Pat<(atomic_load_16 t2addrmode_imm12:$addr),
3995 (t2LDRHi12 t2addrmode_imm12:$addr)>;
3996 def : T2Pat<(atomic_load_16 t2addrmode_negimm8:$addr),
3997 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
3998 def : T2Pat<(atomic_load_16 t2addrmode_so_reg:$addr),
3999 (t2LDRHs t2addrmode_so_reg:$addr)>;
4000 def : T2Pat<(atomic_load_32 t2addrmode_imm12:$addr),
4001 (t2LDRi12 t2addrmode_imm12:$addr)>;
4002 def : T2Pat<(atomic_load_32 t2addrmode_negimm8:$addr),
4003 (t2LDRi8 t2addrmode_negimm8:$addr)>;
4004 def : T2Pat<(atomic_load_32 t2addrmode_so_reg:$addr),
4005 (t2LDRs t2addrmode_so_reg:$addr)>;
4006 def : T2Pat<(atomic_store_8 t2addrmode_imm12:$addr, GPR:$val),
4007 (t2STRBi12 GPR:$val, t2addrmode_imm12:$addr)>;
4008 def : T2Pat<(atomic_store_8 t2addrmode_negimm8:$addr, GPR:$val),
4009 (t2STRBi8 GPR:$val, t2addrmode_negimm8:$addr)>;
4010 def : T2Pat<(atomic_store_8 t2addrmode_so_reg:$addr, GPR:$val),
4011 (t2STRBs GPR:$val, t2addrmode_so_reg:$addr)>;
4012 def : T2Pat<(atomic_store_16 t2addrmode_imm12:$addr, GPR:$val),
4013 (t2STRHi12 GPR:$val, t2addrmode_imm12:$addr)>;
4014 def : T2Pat<(atomic_store_16 t2addrmode_negimm8:$addr, GPR:$val),
4015 (t2STRHi8 GPR:$val, t2addrmode_negimm8:$addr)>;
4016 def : T2Pat<(atomic_store_16 t2addrmode_so_reg:$addr, GPR:$val),
4017 (t2STRHs GPR:$val, t2addrmode_so_reg:$addr)>;
4018 def : T2Pat<(atomic_store_32 t2addrmode_imm12:$addr, GPR:$val),
4019 (t2STRi12 GPR:$val, t2addrmode_imm12:$addr)>;
4020 def : T2Pat<(atomic_store_32 t2addrmode_negimm8:$addr, GPR:$val),
4021 (t2STRi8 GPR:$val, t2addrmode_negimm8:$addr)>;
4022 def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val),
4023 (t2STRs GPR:$val, t2addrmode_so_reg:$addr)>;
4026 //===----------------------------------------------------------------------===//
4027 // Assembler aliases
4030 // Aliases for ADC without the ".w" optional width specifier.
4031 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm",
4032 (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4033 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm",
4034 (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
4035 pred:$p, cc_out:$s)>;
4037 // Aliases for SBC without the ".w" optional width specifier.
4038 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm",
4039 (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4040 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
4041 (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
4042 pred:$p, cc_out:$s)>;
4044 // Aliases for ADD without the ".w" optional width specifier.
4045 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4046 (t2ADDri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4047 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
4048 (t2ADDri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
4049 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
4050 (t2ADDrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4051 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
4052 (t2ADDrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
4053 pred:$p, cc_out:$s)>;
4054 // ... and with the destination and source register combined.
4055 def : t2InstAlias<"add${s}${p} $Rdn, $imm",
4056 (t2ADDri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4057 def : t2InstAlias<"add${p} $Rdn, $imm",
4058 (t2ADDri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
4059 def : t2InstAlias<"add${s}${p} $Rdn, $Rm",
4060 (t2ADDrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4061 def : t2InstAlias<"add${s}${p} $Rdn, $ShiftedRm",
4062 (t2ADDrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
4063 pred:$p, cc_out:$s)>;
4065 // add w/ negative immediates is just a sub.
4066 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4067 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
4069 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
4070 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4071 def : t2InstAlias<"add${s}${p} $Rdn, $imm",
4072 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4074 def : t2InstAlias<"add${p} $Rdn, $imm",
4075 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4077 def : t2InstAlias<"add${s}${p}.w $Rd, $Rn, $imm",
4078 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
4080 def : t2InstAlias<"addw${p} $Rd, $Rn, $imm",
4081 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
4082 def : t2InstAlias<"add${s}${p}.w $Rdn, $imm",
4083 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
4085 def : t2InstAlias<"addw${p} $Rdn, $imm",
4086 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
4089 // Aliases for SUB without the ".w" optional width specifier.
4090 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm",
4091 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4092 def : t2InstAlias<"sub${p} $Rd, $Rn, $imm",
4093 (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
4094 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $Rm",
4095 (t2SUBrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4096 def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $ShiftedRm",
4097 (t2SUBrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
4098 pred:$p, cc_out:$s)>;
4099 // ... and with the destination and source register combined.
4100 def : t2InstAlias<"sub${s}${p} $Rdn, $imm",
4101 (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4102 def : t2InstAlias<"sub${p} $Rdn, $imm",
4103 (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
4104 def : t2InstAlias<"sub${s}${p}.w $Rdn, $Rm",
4105 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4106 def : t2InstAlias<"sub${s}${p} $Rdn, $Rm",
4107 (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4108 def : t2InstAlias<"sub${s}${p} $Rdn, $ShiftedRm",
4109 (t2SUBrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
4110 pred:$p, cc_out:$s)>;
4112 // Alias for compares without the ".w" optional width specifier.
4113 def : t2InstAlias<"cmn${p} $Rn, $Rm",
4114 (t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4115 def : t2InstAlias<"teq${p} $Rn, $Rm",
4116 (t2TEQrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4117 def : t2InstAlias<"tst${p} $Rn, $Rm",
4118 (t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
4121 def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb, HasDB]>;
4122 def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb, HasDB]>;
4123 def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb, HasDB]>;
4125 // Alias for LDR, LDRB, LDRH, LDRSB, and LDRSH without the ".w" optional
4127 def : t2InstAlias<"ldr${p} $Rt, $addr",
4128 (t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4129 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4130 (t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4131 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4132 (t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4133 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4134 (t2LDRSBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4135 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4136 (t2LDRSHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4138 def : t2InstAlias<"ldr${p} $Rt, $addr",
4139 (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4140 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4141 (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4142 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4143 (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4144 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4145 (t2LDRSBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4146 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4147 (t2LDRSHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4149 def : t2InstAlias<"ldr${p} $Rt, $addr",
4150 (t2LDRpci GPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4151 def : t2InstAlias<"ldrb${p} $Rt, $addr",
4152 (t2LDRBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4153 def : t2InstAlias<"ldrh${p} $Rt, $addr",
4154 (t2LDRHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4155 def : t2InstAlias<"ldrsb${p} $Rt, $addr",
4156 (t2LDRSBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4157 def : t2InstAlias<"ldrsh${p} $Rt, $addr",
4158 (t2LDRSHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
4160 // Alias for MVN with(out) the ".w" optional width specifier.
4161 def : t2InstAlias<"mvn${s}${p}.w $Rd, $imm",
4162 (t2MVNi rGPR:$Rd, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4163 def : t2InstAlias<"mvn${s}${p} $Rd, $Rm",
4164 (t2MVNr rGPR:$Rd, rGPR:$Rm, pred:$p, cc_out:$s)>;
4165 def : t2InstAlias<"mvn${s}${p} $Rd, $ShiftedRm",
4166 (t2MVNs rGPR:$Rd, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>;
4168 // PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT when the
4169 // shift amount is zero (i.e., unspecified).
4170 def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
4171 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
4172 Requires<[HasT2ExtractPack, IsThumb2]>;
4173 def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
4174 (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
4175 Requires<[HasT2ExtractPack, IsThumb2]>;
4177 // PUSH/POP aliases for STM/LDM
4178 def : t2InstAlias<"push${p}.w $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
4179 def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
4180 def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4181 def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4183 // STMIA/STMIA_UPD aliases w/o the optional .w suffix
4184 def : t2InstAlias<"stm${p} $Rn, $regs",
4185 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4186 def : t2InstAlias<"stm${p} $Rn!, $regs",
4187 (t2STMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4189 // LDMIA/LDMIA_UPD aliases w/o the optional .w suffix
4190 def : t2InstAlias<"ldm${p} $Rn, $regs",
4191 (t2LDMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4192 def : t2InstAlias<"ldm${p} $Rn!, $regs",
4193 (t2LDMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4195 // STMDB/STMDB_UPD aliases w/ the optional .w suffix
4196 def : t2InstAlias<"stmdb${p}.w $Rn, $regs",
4197 (t2STMDB GPR:$Rn, pred:$p, reglist:$regs)>;
4198 def : t2InstAlias<"stmdb${p}.w $Rn!, $regs",
4199 (t2STMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4201 // LDMDB/LDMDB_UPD aliases w/ the optional .w suffix
4202 def : t2InstAlias<"ldmdb${p}.w $Rn, $regs",
4203 (t2LDMDB GPR:$Rn, pred:$p, reglist:$regs)>;
4204 def : t2InstAlias<"ldmdb${p}.w $Rn!, $regs",
4205 (t2LDMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
4207 // Alias for REV/REV16/REVSH without the ".w" optional width specifier.
4208 def : t2InstAlias<"rev${p} $Rd, $Rm", (t2REV rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4209 def : t2InstAlias<"rev16${p} $Rd, $Rm", (t2REV16 rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4210 def : t2InstAlias<"revsh${p} $Rd, $Rm", (t2REVSH rGPR:$Rd, rGPR:$Rm, pred:$p)>;
4213 // Alias for RSB without the ".w" optional width specifier, and with optional
4214 // implied destination register.
4215 def : t2InstAlias<"rsb${s}${p} $Rd, $Rn, $imm",
4216 (t2RSBri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4217 def : t2InstAlias<"rsb${s}${p} $Rdn, $imm",
4218 (t2RSBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
4219 def : t2InstAlias<"rsb${s}${p} $Rdn, $Rm",
4220 (t2RSBrr rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
4221 def : t2InstAlias<"rsb${s}${p} $Rdn, $ShiftedRm",
4222 (t2RSBrs rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$ShiftedRm, pred:$p,
4225 // SSAT/USAT optional shift operand.
4226 def : t2InstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
4227 (t2SSAT rGPR:$Rd, imm1_32:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
4228 def : t2InstAlias<"usat${p} $Rd, $sat_imm, $Rn",
4229 (t2USAT rGPR:$Rd, imm0_31:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
4231 // STM w/o the .w suffix.
4232 def : t2InstAlias<"stm${p} $Rn, $regs",
4233 (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
4235 // Alias for STR, STRB, and STRH without the ".w" optional
4237 def : t2InstAlias<"str${p} $Rt, $addr",
4238 (t2STRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4239 def : t2InstAlias<"strb${p} $Rt, $addr",
4240 (t2STRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4241 def : t2InstAlias<"strh${p} $Rt, $addr",
4242 (t2STRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
4244 def : t2InstAlias<"str${p} $Rt, $addr",
4245 (t2STRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4246 def : t2InstAlias<"strb${p} $Rt, $addr",
4247 (t2STRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4248 def : t2InstAlias<"strh${p} $Rt, $addr",
4249 (t2STRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
4251 // Extend instruction optional rotate operand.
4252 def : t2InstAlias<"sxtab${p} $Rd, $Rn, $Rm",
4253 (t2SXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4254 def : t2InstAlias<"sxtah${p} $Rd, $Rn, $Rm",
4255 (t2SXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4256 def : t2InstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
4257 (t2SXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4259 def : t2InstAlias<"sxtb${p} $Rd, $Rm",
4260 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4261 def : t2InstAlias<"sxtb16${p} $Rd, $Rm",
4262 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4263 def : t2InstAlias<"sxth${p} $Rd, $Rm",
4264 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4265 def : t2InstAlias<"sxtb${p}.w $Rd, $Rm",
4266 (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4267 def : t2InstAlias<"sxth${p}.w $Rd, $Rm",
4268 (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4270 def : t2InstAlias<"uxtab${p} $Rd, $Rn, $Rm",
4271 (t2UXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4272 def : t2InstAlias<"uxtah${p} $Rd, $Rn, $Rm",
4273 (t2UXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4274 def : t2InstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
4275 (t2UXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
4276 def : t2InstAlias<"uxtb${p} $Rd, $Rm",
4277 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4278 def : t2InstAlias<"uxtb16${p} $Rd, $Rm",
4279 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4280 def : t2InstAlias<"uxth${p} $Rd, $Rm",
4281 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4283 def : t2InstAlias<"uxtb${p}.w $Rd, $Rm",
4284 (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4285 def : t2InstAlias<"uxth${p}.w $Rd, $Rm",
4286 (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
4288 // Extend instruction w/o the ".w" optional width specifier.
4289 def : t2InstAlias<"uxtb${p} $Rd, $Rm$rot",
4290 (t2UXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4291 def : t2InstAlias<"uxtb16${p} $Rd, $Rm$rot",
4292 (t2UXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4293 def : t2InstAlias<"uxth${p} $Rd, $Rm$rot",
4294 (t2UXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4296 def : t2InstAlias<"sxtb${p} $Rd, $Rm$rot",
4297 (t2SXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4298 def : t2InstAlias<"sxtb16${p} $Rd, $Rm$rot",
4299 (t2SXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4300 def : t2InstAlias<"sxth${p} $Rd, $Rm$rot",
4301 (t2SXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
4304 // "mov Rd, t2_so_imm_not" can be handled via "mvn" in assembly, just like
4306 def : t2InstAlias<"mov${p} $Rd, $imm",
4307 (t2MVNi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
4308 def : t2InstAlias<"mvn${p} $Rd, $imm",
4309 (t2MOVi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
4310 // Same for AND <--> BIC
4311 def : t2InstAlias<"bic${s}${p} $Rd, $Rn, $imm",
4312 (t2ANDri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
4313 pred:$p, cc_out:$s)>;
4314 def : t2InstAlias<"bic${s}${p} $Rdn, $imm",
4315 (t2ANDri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
4316 pred:$p, cc_out:$s)>;
4317 def : t2InstAlias<"and${s}${p} $Rd, $Rn, $imm",
4318 (t2BICri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
4319 pred:$p, cc_out:$s)>;
4320 def : t2InstAlias<"and${s}${p} $Rdn, $imm",
4321 (t2BICri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
4322 pred:$p, cc_out:$s)>;
4323 // Likewise, "add Rd, t2_so_imm_neg" -> sub
4324 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
4325 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm,
4326 pred:$p, cc_out:$s)>;
4327 def : t2InstAlias<"add${s}${p} $Rd, $imm",
4328 (t2SUBri GPRnopc:$Rd, GPRnopc:$Rd, t2_so_imm_neg:$imm,
4329 pred:$p, cc_out:$s)>;
4330 // Same for CMP <--> CMN via t2_so_imm_neg
4331 def : t2InstAlias<"cmp${p} $Rd, $imm",
4332 (t2CMNri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
4333 def : t2InstAlias<"cmn${p} $Rd, $imm",
4334 (t2CMPri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
4337 // Wide 'mul' encoding can be specified with only two operands.
4338 def : t2InstAlias<"mul${p} $Rn, $Rm",
4339 (t2MUL rGPR:$Rn, rGPR:$Rm, rGPR:$Rn, pred:$p)>;
4341 // "neg" is and alias for "rsb rd, rn, #0"
4342 def : t2InstAlias<"neg${s}${p} $Rd, $Rm",
4343 (t2RSBri rGPR:$Rd, rGPR:$Rm, 0, pred:$p, cc_out:$s)>;
4345 // MOV so_reg assembler pseudos. InstAlias isn't expressive enough for
4346 // these, unfortunately.
4347 def t2MOVsi: t2AsmPseudo<"mov${p} $Rd, $shift",
4348 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
4349 def t2MOVSsi: t2AsmPseudo<"movs${p} $Rd, $shift",
4350 (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
4352 def t2MOVsr: t2AsmPseudo<"mov${p} $Rd, $shift",
4353 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
4354 def t2MOVSsr: t2AsmPseudo<"movs${p} $Rd, $shift",
4355 (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
4357 // ADR w/o the .w suffix
4358 def : t2InstAlias<"adr${p} $Rd, $addr",
4359 (t2ADR rGPR:$Rd, t2adrlabel:$addr, pred:$p)>;
4361 // LDR(literal) w/ alternate [pc, #imm] syntax.
4362 def t2LDRpcrel : t2AsmPseudo<"ldr${p} $Rt, $addr",
4363 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4364 def t2LDRBpcrel : t2AsmPseudo<"ldrb${p} $Rt, $addr",
4365 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4366 def t2LDRHpcrel : t2AsmPseudo<"ldrh${p} $Rt, $addr",
4367 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4368 def t2LDRSBpcrel : t2AsmPseudo<"ldrsb${p} $Rt, $addr",
4369 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4370 def t2LDRSHpcrel : t2AsmPseudo<"ldrsh${p} $Rt, $addr",
4371 (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4372 // Version w/ the .w suffix.
4373 def : t2InstAlias<"ldr${p}.w $Rt, $addr",
4374 (t2LDRpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4375 def : t2InstAlias<"ldrb${p}.w $Rt, $addr",
4376 (t2LDRBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4377 def : t2InstAlias<"ldrh${p}.w $Rt, $addr",
4378 (t2LDRHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4379 def : t2InstAlias<"ldrsb${p}.w $Rt, $addr",
4380 (t2LDRSBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4381 def : t2InstAlias<"ldrsh${p}.w $Rt, $addr",
4382 (t2LDRSHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
4384 def : t2InstAlias<"add${p} $Rd, pc, $imm",
4385 (t2ADR rGPR:$Rd, imm0_4095:$imm, pred:$p)>;