1 //===- ARMInstrThumb2.td - Thumb2 support for ARM -------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file describes the Thumb2 instruction set.
12 //===----------------------------------------------------------------------===//
14 // IT block predicate field
15 def it_pred_asmoperand : AsmOperandClass {
16 let Name = "ITCondCode";
17 let ParserMethod = "parseITCondCode";
19 def it_pred : Operand<i32> {
20 let PrintMethod = "printMandatoryPredicateOperand";
21 let ParserMatchClass = it_pred_asmoperand;
24 // IT block condition mask
25 def it_mask_asmoperand : AsmOperandClass { let Name = "ITMask"; }
26 def it_mask : Operand<i32> {
27 let PrintMethod = "printThumbITMask";
28 let ParserMatchClass = it_mask_asmoperand;
31 // Shifted operands. No register controlled shifts for Thumb2.
32 // Note: We do not support rrx shifted operands yet.
33 def t2_so_reg : Operand<i32>, // reg imm
34 ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
36 let EncoderMethod = "getT2SORegOpValue";
37 let PrintMethod = "printT2SOOperand";
38 let DecoderMethod = "DecodeSORegImmOperand";
39 let ParserMatchClass = ShiftedImmAsmOperand;
40 let MIOperandInfo = (ops rGPR, i32imm);
43 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
44 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
45 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
48 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
49 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
50 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), MVT::i32);
53 // t2_so_imm - Match a 32-bit immediate operand, which is an
54 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
55 // immediate splatted into multiple bytes of the word.
56 def t2_so_imm_asmoperand : AsmOperandClass { let Name = "T2SOImm"; }
57 def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{
58 return ARM_AM::getT2SOImmVal(Imm) != -1;
60 let ParserMatchClass = t2_so_imm_asmoperand;
61 let EncoderMethod = "getT2SOImmOpValue";
62 let DecoderMethod = "DecodeT2SOImm";
65 // t2_so_imm_not - Match an immediate that is a complement
67 def t2_so_imm_not : Operand<i32>,
69 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
70 }], t2_so_imm_not_XFORM>;
72 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
73 def t2_so_imm_neg : Operand<i32>,
75 return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
76 }], t2_so_imm_neg_XFORM>;
78 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
79 def imm0_4095 : Operand<i32>,
81 return Imm >= 0 && Imm < 4096;
84 def imm0_4095_neg : PatLeaf<(i32 imm), [{
85 return (uint32_t)(-N->getZExtValue()) < 4096;
88 def imm0_255_neg : PatLeaf<(i32 imm), [{
89 return (uint32_t)(-N->getZExtValue()) < 255;
92 def imm0_255_not : PatLeaf<(i32 imm), [{
93 return (uint32_t)(~N->getZExtValue()) < 255;
96 def lo5AllOne : PatLeaf<(i32 imm), [{
97 // Returns true if all low 5-bits are 1.
98 return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL;
101 // Define Thumb2 specific addressing modes.
103 // t2addrmode_imm12 := reg + imm12
104 def t2addrmode_imm12_asmoperand : AsmOperandClass {let Name="MemUImm12Offset";}
105 def t2addrmode_imm12 : Operand<i32>,
106 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
107 let PrintMethod = "printAddrModeImm12Operand";
108 let EncoderMethod = "getAddrModeImm12OpValue";
109 let DecoderMethod = "DecodeT2AddrModeImm12";
110 let ParserMatchClass = t2addrmode_imm12_asmoperand;
111 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
114 // t2ldrlabel := imm12
115 def t2ldrlabel : Operand<i32> {
116 let EncoderMethod = "getAddrModeImm12OpValue";
120 // ADR instruction labels.
121 def t2adrlabel : Operand<i32> {
122 let EncoderMethod = "getT2AdrLabelOpValue";
126 // t2addrmode_negimm8 := reg - imm8
127 def MemNegImm8OffsetAsmOperand : AsmOperandClass {let Name="MemNegImm8Offset";}
128 def t2addrmode_negimm8 : Operand<i32>,
129 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
130 let PrintMethod = "printT2AddrModeImm8Operand";
131 let EncoderMethod = "getT2AddrModeImm8OpValue";
132 let DecoderMethod = "DecodeT2AddrModeImm8";
133 let ParserMatchClass = MemNegImm8OffsetAsmOperand;
134 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
137 // t2addrmode_imm8 := reg +/- imm8
138 def MemImm8OffsetAsmOperand : AsmOperandClass { let Name = "MemImm8Offset"; }
139 def t2addrmode_imm8 : Operand<i32>,
140 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
141 let PrintMethod = "printT2AddrModeImm8Operand";
142 let EncoderMethod = "getT2AddrModeImm8OpValue";
143 let DecoderMethod = "DecodeT2AddrModeImm8";
144 let ParserMatchClass = MemImm8OffsetAsmOperand;
145 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
148 def t2am_imm8_offset : Operand<i32>,
149 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
150 [], [SDNPWantRoot]> {
151 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
152 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
153 let DecoderMethod = "DecodeT2Imm8";
156 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
157 def t2addrmode_imm8s4 : Operand<i32> {
158 let PrintMethod = "printT2AddrModeImm8s4Operand";
159 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
160 let DecoderMethod = "DecodeT2AddrModeImm8s4";
161 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
164 def t2am_imm8s4_offset : Operand<i32> {
165 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
166 let DecoderMethod = "DecodeT2Imm8S4";
169 // t2addrmode_so_reg := reg + (reg << imm2)
170 def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";}
171 def t2addrmode_so_reg : Operand<i32>,
172 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
173 let PrintMethod = "printT2AddrModeSoRegOperand";
174 let EncoderMethod = "getT2AddrModeSORegOpValue";
175 let DecoderMethod = "DecodeT2AddrModeSOReg";
176 let ParserMatchClass = t2addrmode_so_reg_asmoperand;
177 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
180 // t2addrmode_reg := reg
181 // Used by load/store exclusive instructions. Useful to enable right assembly
182 // parsing and printing. Not used for any codegen matching.
184 def t2addrmode_reg : Operand<i32> {
185 let PrintMethod = "printAddrMode7Operand";
186 let DecoderMethod = "DecodeGPRRegisterClass";
187 let MIOperandInfo = (ops GPR);
190 //===----------------------------------------------------------------------===//
191 // Multiclass helpers...
195 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
196 string opc, string asm, list<dag> pattern>
197 : T2I<oops, iops, itin, opc, asm, pattern> {
202 let Inst{26} = imm{11};
203 let Inst{14-12} = imm{10-8};
204 let Inst{7-0} = imm{7-0};
208 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
209 string opc, string asm, list<dag> pattern>
210 : T2sI<oops, iops, itin, opc, asm, pattern> {
216 let Inst{26} = imm{11};
217 let Inst{14-12} = imm{10-8};
218 let Inst{7-0} = imm{7-0};
221 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
222 string opc, string asm, list<dag> pattern>
223 : T2I<oops, iops, itin, opc, asm, pattern> {
227 let Inst{19-16} = Rn;
228 let Inst{26} = imm{11};
229 let Inst{14-12} = imm{10-8};
230 let Inst{7-0} = imm{7-0};
234 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
235 string opc, string asm, list<dag> pattern>
236 : T2I<oops, iops, itin, opc, asm, pattern> {
241 let Inst{3-0} = ShiftedRm{3-0};
242 let Inst{5-4} = ShiftedRm{6-5};
243 let Inst{14-12} = ShiftedRm{11-9};
244 let Inst{7-6} = ShiftedRm{8-7};
247 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
248 string opc, string asm, list<dag> pattern>
249 : T2sI<oops, iops, itin, opc, asm, pattern> {
254 let Inst{3-0} = ShiftedRm{3-0};
255 let Inst{5-4} = ShiftedRm{6-5};
256 let Inst{14-12} = ShiftedRm{11-9};
257 let Inst{7-6} = ShiftedRm{8-7};
260 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
261 string opc, string asm, list<dag> pattern>
262 : T2I<oops, iops, itin, opc, asm, pattern> {
266 let Inst{19-16} = Rn;
267 let Inst{3-0} = ShiftedRm{3-0};
268 let Inst{5-4} = ShiftedRm{6-5};
269 let Inst{14-12} = ShiftedRm{11-9};
270 let Inst{7-6} = ShiftedRm{8-7};
273 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
274 string opc, string asm, list<dag> pattern>
275 : T2I<oops, iops, itin, opc, asm, pattern> {
283 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
284 string opc, string asm, list<dag> pattern>
285 : T2sI<oops, iops, itin, opc, asm, pattern> {
293 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
294 string opc, string asm, list<dag> pattern>
295 : T2I<oops, iops, itin, opc, asm, pattern> {
299 let Inst{19-16} = Rn;
304 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
305 string opc, string asm, list<dag> pattern>
306 : T2I<oops, iops, itin, opc, asm, pattern> {
312 let Inst{19-16} = Rn;
313 let Inst{26} = imm{11};
314 let Inst{14-12} = imm{10-8};
315 let Inst{7-0} = imm{7-0};
318 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
319 string opc, string asm, list<dag> pattern>
320 : T2sI<oops, iops, itin, opc, asm, pattern> {
326 let Inst{19-16} = Rn;
327 let Inst{26} = imm{11};
328 let Inst{14-12} = imm{10-8};
329 let Inst{7-0} = imm{7-0};
332 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
333 string opc, string asm, list<dag> pattern>
334 : T2I<oops, iops, itin, opc, asm, pattern> {
341 let Inst{14-12} = imm{4-2};
342 let Inst{7-6} = imm{1-0};
345 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
346 string opc, string asm, list<dag> pattern>
347 : T2sI<oops, iops, itin, opc, asm, pattern> {
354 let Inst{14-12} = imm{4-2};
355 let Inst{7-6} = imm{1-0};
358 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
359 string opc, string asm, list<dag> pattern>
360 : T2I<oops, iops, itin, opc, asm, pattern> {
366 let Inst{19-16} = Rn;
370 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
371 string opc, string asm, list<dag> pattern>
372 : T2sI<oops, iops, itin, opc, asm, pattern> {
378 let Inst{19-16} = Rn;
382 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
383 string opc, string asm, list<dag> pattern>
384 : T2I<oops, iops, itin, opc, asm, pattern> {
390 let Inst{19-16} = Rn;
391 let Inst{3-0} = ShiftedRm{3-0};
392 let Inst{5-4} = ShiftedRm{6-5};
393 let Inst{14-12} = ShiftedRm{11-9};
394 let Inst{7-6} = ShiftedRm{8-7};
397 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
398 string opc, string asm, list<dag> pattern>
399 : T2sI<oops, iops, itin, opc, asm, pattern> {
405 let Inst{19-16} = Rn;
406 let Inst{3-0} = ShiftedRm{3-0};
407 let Inst{5-4} = ShiftedRm{6-5};
408 let Inst{14-12} = ShiftedRm{11-9};
409 let Inst{7-6} = ShiftedRm{8-7};
412 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
413 string opc, string asm, list<dag> pattern>
414 : T2I<oops, iops, itin, opc, asm, pattern> {
420 let Inst{19-16} = Rn;
421 let Inst{15-12} = Ra;
426 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
427 dag oops, dag iops, InstrItinClass itin,
428 string opc, string asm, list<dag> pattern>
429 : T2I<oops, iops, itin, opc, asm, pattern> {
435 let Inst{31-23} = 0b111110111;
436 let Inst{22-20} = opc22_20;
437 let Inst{19-16} = Rn;
438 let Inst{15-12} = RdLo;
439 let Inst{11-8} = RdHi;
440 let Inst{7-4} = opc7_4;
445 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
446 /// unary operation that produces a value. These are predicable and can be
447 /// changed to modify CPSR.
448 multiclass T2I_un_irs<bits<4> opcod, string opc,
449 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
450 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
452 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
454 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
455 let isAsCheapAsAMove = Cheap;
456 let isReMaterializable = ReMat;
457 let Inst{31-27} = 0b11110;
459 let Inst{24-21} = opcod;
460 let Inst{19-16} = 0b1111; // Rn
464 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
466 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
467 let Inst{31-27} = 0b11101;
468 let Inst{26-25} = 0b01;
469 let Inst{24-21} = opcod;
470 let Inst{19-16} = 0b1111; // Rn
471 let Inst{14-12} = 0b000; // imm3
472 let Inst{7-6} = 0b00; // imm2
473 let Inst{5-4} = 0b00; // type
476 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
477 opc, ".w\t$Rd, $ShiftedRm",
478 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
479 let Inst{31-27} = 0b11101;
480 let Inst{26-25} = 0b01;
481 let Inst{24-21} = opcod;
482 let Inst{19-16} = 0b1111; // Rn
486 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
487 /// binary operation that produces a value. These are predicable and can be
488 /// changed to modify CPSR.
489 multiclass T2I_bin_irs<bits<4> opcod, string opc,
490 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
491 PatFrag opnode, string baseOpc, bit Commutable = 0,
494 def ri : T2sTwoRegImm<
495 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
496 opc, "\t$Rd, $Rn, $imm",
497 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
498 let Inst{31-27} = 0b11110;
500 let Inst{24-21} = opcod;
504 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
505 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
506 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
507 let isCommutable = Commutable;
508 let Inst{31-27} = 0b11101;
509 let Inst{26-25} = 0b01;
510 let Inst{24-21} = opcod;
511 let Inst{14-12} = 0b000; // imm3
512 let Inst{7-6} = 0b00; // imm2
513 let Inst{5-4} = 0b00; // type
516 def rs : T2sTwoRegShiftedReg<
517 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
518 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
519 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
520 let Inst{31-27} = 0b11101;
521 let Inst{26-25} = 0b01;
522 let Inst{24-21} = opcod;
524 // Assembly aliases for optional destination operand when it's the same
525 // as the source operand.
526 def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
527 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
528 t2_so_imm:$imm, pred:$p,
530 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
531 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
534 def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
535 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
536 t2_so_reg:$shift, pred:$p,
540 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
541 // the ".w" suffix to indicate that they are wide.
542 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
543 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
544 PatFrag opnode, string baseOpc, bit Commutable = 0> :
545 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, baseOpc, Commutable, ".w"> {
546 // Assembler aliases w/o the ".w" suffix.
547 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
548 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rd, rGPR:$Rn,
551 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"),
552 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rd, rGPR:$Rn,
553 t2_so_reg:$shift, pred:$p,
556 // and with the optional destination operand, too.
557 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
558 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
561 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"),
562 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
563 t2_so_reg:$shift, pred:$p,
567 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
568 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
569 /// it is equivalent to the T2I_bin_irs counterpart.
570 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
572 def ri : T2sTwoRegImm<
573 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
574 opc, ".w\t$Rd, $Rn, $imm",
575 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
576 let Inst{31-27} = 0b11110;
578 let Inst{24-21} = opcod;
582 def rr : T2sThreeReg<
583 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
584 opc, "\t$Rd, $Rn, $Rm",
585 [/* For disassembly only; pattern left blank */]> {
586 let Inst{31-27} = 0b11101;
587 let Inst{26-25} = 0b01;
588 let Inst{24-21} = opcod;
589 let Inst{14-12} = 0b000; // imm3
590 let Inst{7-6} = 0b00; // imm2
591 let Inst{5-4} = 0b00; // type
594 def rs : T2sTwoRegShiftedReg<
595 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
596 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
597 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
598 let Inst{31-27} = 0b11101;
599 let Inst{26-25} = 0b01;
600 let Inst{24-21} = opcod;
604 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
605 /// instruction modifies the CPSR register.
606 let hasPostISelHook = 1, isCodeGenOnly = 1, Defs = [CPSR] in {
607 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
608 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
609 PatFrag opnode, bit Commutable = 0> {
611 def ri : T2sTwoRegImm<
612 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
613 opc, ".w\t$Rd, $Rn, $imm",
614 [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
615 let Inst{31-27} = 0b11110;
617 let Inst{24-21} = opcod;
621 def rr : T2sThreeReg<
622 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
623 opc, ".w\t$Rd, $Rn, $Rm",
624 [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, rGPR:$Rm))]> {
625 let isCommutable = Commutable;
626 let Inst{31-27} = 0b11101;
627 let Inst{26-25} = 0b01;
628 let Inst{24-21} = opcod;
629 let Inst{14-12} = 0b000; // imm3
630 let Inst{7-6} = 0b00; // imm2
631 let Inst{5-4} = 0b00; // type
634 def rs : T2sTwoRegShiftedReg<
635 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
636 opc, ".w\t$Rd, $Rn, $ShiftedRm",
637 [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
638 let Inst{31-27} = 0b11101;
639 let Inst{26-25} = 0b01;
640 let Inst{24-21} = opcod;
645 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
646 /// patterns for a binary operation that produces a value.
647 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
648 bit Commutable = 0> {
650 // The register-immediate version is re-materializable. This is useful
651 // in particular for taking the address of a local.
652 let isReMaterializable = 1 in {
653 def ri : T2sTwoRegImm<
654 (outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
655 opc, ".w\t$Rd, $Rn, $imm",
656 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]> {
657 let Inst{31-27} = 0b11110;
660 let Inst{23-21} = op23_21;
666 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
667 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
668 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
672 let Inst{31-27} = 0b11110;
673 let Inst{26} = imm{11};
674 let Inst{25-24} = 0b10;
675 let Inst{23-21} = op23_21;
676 let Inst{20} = 0; // The S bit.
677 let Inst{19-16} = Rn;
679 let Inst{14-12} = imm{10-8};
681 let Inst{7-0} = imm{7-0};
684 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iALUr,
685 opc, ".w\t$Rd, $Rn, $Rm",
686 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]> {
687 let isCommutable = Commutable;
688 let Inst{31-27} = 0b11101;
689 let Inst{26-25} = 0b01;
691 let Inst{23-21} = op23_21;
692 let Inst{14-12} = 0b000; // imm3
693 let Inst{7-6} = 0b00; // imm2
694 let Inst{5-4} = 0b00; // type
697 def rs : T2sTwoRegShiftedReg<
698 (outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
699 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
700 [(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]> {
701 let Inst{31-27} = 0b11101;
702 let Inst{26-25} = 0b01;
704 let Inst{23-21} = op23_21;
708 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
709 /// for a binary operation that produces a value and use the carry
710 /// bit. It's not predicable.
711 let Defs = [CPSR], Uses = [CPSR] in {
712 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
713 bit Commutable = 0> {
715 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
716 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
717 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_imm:$imm, CPSR))]>,
718 Requires<[IsThumb2]> {
719 let Inst{31-27} = 0b11110;
721 let Inst{24-21} = opcod;
725 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
726 opc, ".w\t$Rd, $Rn, $Rm",
727 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, rGPR:$Rm, CPSR))]>,
728 Requires<[IsThumb2]> {
729 let isCommutable = Commutable;
730 let Inst{31-27} = 0b11101;
731 let Inst{26-25} = 0b01;
732 let Inst{24-21} = opcod;
733 let Inst{14-12} = 0b000; // imm3
734 let Inst{7-6} = 0b00; // imm2
735 let Inst{5-4} = 0b00; // type
738 def rs : T2sTwoRegShiftedReg<
739 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
740 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
741 [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm, CPSR))]>,
742 Requires<[IsThumb2]> {
743 let Inst{31-27} = 0b11101;
744 let Inst{26-25} = 0b01;
745 let Inst{24-21} = opcod;
750 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
751 /// version is not needed since this is only for codegen.
752 let hasPostISelHook = 1, isCodeGenOnly = 1, Defs = [CPSR] in {
753 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
755 def ri : T2sTwoRegImm<
756 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
757 opc, ".w\t$Rd, $Rn, $imm",
758 [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
759 let Inst{31-27} = 0b11110;
761 let Inst{24-21} = opcod;
765 def rs : T2sTwoRegShiftedReg<
766 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
767 IIC_iALUsi, opc, "\t$Rd, $Rn, $ShiftedRm",
768 [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
769 let Inst{31-27} = 0b11101;
770 let Inst{26-25} = 0b01;
771 let Inst{24-21} = opcod;
776 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
777 // rotate operation that produces a value.
778 multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, PatFrag opnode,
781 def ri : T2sTwoRegShiftImm<
782 (outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi,
783 opc, ".w\t$Rd, $Rm, $imm",
784 [(set rGPR:$Rd, (opnode rGPR:$Rm, (i32 ty:$imm)))]> {
785 let Inst{31-27} = 0b11101;
786 let Inst{26-21} = 0b010010;
787 let Inst{19-16} = 0b1111; // Rn
788 let Inst{5-4} = opcod;
791 def rr : T2sThreeReg<
792 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
793 opc, ".w\t$Rd, $Rn, $Rm",
794 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
795 let Inst{31-27} = 0b11111;
796 let Inst{26-23} = 0b0100;
797 let Inst{22-21} = opcod;
798 let Inst{15-12} = 0b1111;
799 let Inst{7-4} = 0b0000;
802 // Optional destination register
803 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"),
804 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
807 def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"),
808 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
812 // Assembler aliases w/o the ".w" suffix.
813 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"),
814 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rd, rGPR:$Rn,
817 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
818 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rd, rGPR:$Rn,
822 // and with the optional destination operand, too.
823 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"),
824 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
827 def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
828 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
833 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
834 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
835 /// a explicit result, only implicitly set CPSR.
836 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
837 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
838 PatFrag opnode, string baseOpc> {
839 let isCompare = 1, Defs = [CPSR] in {
841 def ri : T2OneRegCmpImm<
842 (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), iii,
843 opc, ".w\t$Rn, $imm",
844 [(opnode GPRnopc:$Rn, t2_so_imm:$imm)]> {
845 let Inst{31-27} = 0b11110;
847 let Inst{24-21} = opcod;
848 let Inst{20} = 1; // The S bit.
850 let Inst{11-8} = 0b1111; // Rd
853 def rr : T2TwoRegCmp<
854 (outs), (ins GPRnopc:$Rn, rGPR:$Rm), iir,
856 [(opnode GPRnopc:$Rn, rGPR:$Rm)]> {
857 let Inst{31-27} = 0b11101;
858 let Inst{26-25} = 0b01;
859 let Inst{24-21} = opcod;
860 let Inst{20} = 1; // The S bit.
861 let Inst{14-12} = 0b000; // imm3
862 let Inst{11-8} = 0b1111; // Rd
863 let Inst{7-6} = 0b00; // imm2
864 let Inst{5-4} = 0b00; // type
867 def rs : T2OneRegCmpShiftedReg<
868 (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), iis,
869 opc, ".w\t$Rn, $ShiftedRm",
870 [(opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]> {
871 let Inst{31-27} = 0b11101;
872 let Inst{26-25} = 0b01;
873 let Inst{24-21} = opcod;
874 let Inst{20} = 1; // The S bit.
875 let Inst{11-8} = 0b1111; // Rd
879 // Assembler aliases w/o the ".w" suffix.
880 // No alias here for 'rr' version as not all instantiations of this
881 // multiclass want one (CMP in particular, does not).
882 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"),
883 (!cast<Instruction>(!strconcat(baseOpc, "ri")) GPRnopc:$Rn,
884 t2_so_imm:$imm, pred:$p)>;
885 def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"),
886 (!cast<Instruction>(!strconcat(baseOpc, "rs")) GPRnopc:$Rn,
891 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
892 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
893 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
895 def i12 : T2Ii12<(outs target:$Rt), (ins t2addrmode_imm12:$addr), iii,
896 opc, ".w\t$Rt, $addr",
897 [(set target:$Rt, (opnode t2addrmode_imm12:$addr))]> {
900 let Inst{31-25} = 0b1111100;
901 let Inst{24} = signed;
903 let Inst{22-21} = opcod;
904 let Inst{20} = 1; // load
905 let Inst{19-16} = addr{16-13}; // Rn
906 let Inst{15-12} = Rt;
907 let Inst{11-0} = addr{11-0}; // imm
909 def i8 : T2Ii8 <(outs target:$Rt), (ins t2addrmode_negimm8:$addr), iii,
911 [(set target:$Rt, (opnode t2addrmode_negimm8:$addr))]> {
914 let Inst{31-27} = 0b11111;
915 let Inst{26-25} = 0b00;
916 let Inst{24} = signed;
918 let Inst{22-21} = opcod;
919 let Inst{20} = 1; // load
920 let Inst{19-16} = addr{12-9}; // Rn
921 let Inst{15-12} = Rt;
923 // Offset: index==TRUE, wback==FALSE
924 let Inst{10} = 1; // The P bit.
925 let Inst{9} = addr{8}; // U
926 let Inst{8} = 0; // The W bit.
927 let Inst{7-0} = addr{7-0}; // imm
929 def s : T2Iso <(outs target:$Rt), (ins t2addrmode_so_reg:$addr), iis,
930 opc, ".w\t$Rt, $addr",
931 [(set target:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
932 let Inst{31-27} = 0b11111;
933 let Inst{26-25} = 0b00;
934 let Inst{24} = signed;
936 let Inst{22-21} = opcod;
937 let Inst{20} = 1; // load
938 let Inst{11-6} = 0b000000;
941 let Inst{15-12} = Rt;
944 let Inst{19-16} = addr{9-6}; // Rn
945 let Inst{3-0} = addr{5-2}; // Rm
946 let Inst{5-4} = addr{1-0}; // imm
948 let DecoderMethod = "DecodeT2LoadShift";
951 // FIXME: Is the pci variant actually needed?
952 def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
953 opc, ".w\t$Rt, $addr",
954 [(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
955 let isReMaterializable = 1;
956 let Inst{31-27} = 0b11111;
957 let Inst{26-25} = 0b00;
958 let Inst{24} = signed;
959 let Inst{23} = ?; // add = (U == '1')
960 let Inst{22-21} = opcod;
961 let Inst{20} = 1; // load
962 let Inst{19-16} = 0b1111; // Rn
965 let Inst{15-12} = Rt{3-0};
966 let Inst{11-0} = addr{11-0};
970 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
971 multiclass T2I_st<bits<2> opcod, string opc,
972 InstrItinClass iii, InstrItinClass iis, RegisterClass target,
974 def i12 : T2Ii12<(outs), (ins target:$Rt, t2addrmode_imm12:$addr), iii,
975 opc, ".w\t$Rt, $addr",
976 [(opnode target:$Rt, t2addrmode_imm12:$addr)]> {
977 let Inst{31-27} = 0b11111;
978 let Inst{26-23} = 0b0001;
979 let Inst{22-21} = opcod;
980 let Inst{20} = 0; // !load
983 let Inst{15-12} = Rt;
986 let addr{12} = 1; // add = TRUE
987 let Inst{19-16} = addr{16-13}; // Rn
988 let Inst{23} = addr{12}; // U
989 let Inst{11-0} = addr{11-0}; // imm
991 def i8 : T2Ii8 <(outs), (ins target:$Rt, t2addrmode_negimm8:$addr), iii,
993 [(opnode target:$Rt, t2addrmode_negimm8:$addr)]> {
994 let Inst{31-27} = 0b11111;
995 let Inst{26-23} = 0b0000;
996 let Inst{22-21} = opcod;
997 let Inst{20} = 0; // !load
999 // Offset: index==TRUE, wback==FALSE
1000 let Inst{10} = 1; // The P bit.
1001 let Inst{8} = 0; // The W bit.
1004 let Inst{15-12} = Rt;
1007 let Inst{19-16} = addr{12-9}; // Rn
1008 let Inst{9} = addr{8}; // U
1009 let Inst{7-0} = addr{7-0}; // imm
1011 def s : T2Iso <(outs), (ins target:$Rt, t2addrmode_so_reg:$addr), iis,
1012 opc, ".w\t$Rt, $addr",
1013 [(opnode target:$Rt, t2addrmode_so_reg:$addr)]> {
1014 let Inst{31-27} = 0b11111;
1015 let Inst{26-23} = 0b0000;
1016 let Inst{22-21} = opcod;
1017 let Inst{20} = 0; // !load
1018 let Inst{11-6} = 0b000000;
1021 let Inst{15-12} = Rt;
1024 let Inst{19-16} = addr{9-6}; // Rn
1025 let Inst{3-0} = addr{5-2}; // Rm
1026 let Inst{5-4} = addr{1-0}; // imm
1030 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
1031 /// register and one whose operand is a register rotated by 8/16/24.
1032 class T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode>
1033 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1034 opc, ".w\t$Rd, $Rm$rot",
1035 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1036 Requires<[IsThumb2]> {
1037 let Inst{31-27} = 0b11111;
1038 let Inst{26-23} = 0b0100;
1039 let Inst{22-20} = opcod;
1040 let Inst{19-16} = 0b1111; // Rn
1041 let Inst{15-12} = 0b1111;
1045 let Inst{5-4} = rot{1-0}; // rotate
1048 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
1049 class T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode>
1050 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot),
1051 IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
1052 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
1053 Requires<[HasT2ExtractPack, IsThumb2]> {
1055 let Inst{31-27} = 0b11111;
1056 let Inst{26-23} = 0b0100;
1057 let Inst{22-20} = opcod;
1058 let Inst{19-16} = 0b1111; // Rn
1059 let Inst{15-12} = 0b1111;
1061 let Inst{5-4} = rot;
1064 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1066 class T2I_ext_rrot_sxtb16<bits<3> opcod, string opc>
1067 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1068 opc, "\t$Rd, $Rm$rot", []>,
1069 Requires<[IsThumb2, HasT2ExtractPack]> {
1071 let Inst{31-27} = 0b11111;
1072 let Inst{26-23} = 0b0100;
1073 let Inst{22-20} = opcod;
1074 let Inst{19-16} = 0b1111; // Rn
1075 let Inst{15-12} = 0b1111;
1077 let Inst{5-4} = rot;
1080 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1081 /// register and one whose operand is a register rotated by 8/16/24.
1082 class T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode>
1083 : T2ThreeReg<(outs rGPR:$Rd),
1084 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1085 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot",
1086 [(set rGPR:$Rd, (opnode rGPR:$Rn, (rotr rGPR:$Rm,rot_imm:$rot)))]>,
1087 Requires<[HasT2ExtractPack, IsThumb2]> {
1089 let Inst{31-27} = 0b11111;
1090 let Inst{26-23} = 0b0100;
1091 let Inst{22-20} = opcod;
1092 let Inst{15-12} = 0b1111;
1094 let Inst{5-4} = rot;
1097 class T2I_exta_rrot_np<bits<3> opcod, string opc>
1098 : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm,rot_imm:$rot),
1099 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []> {
1101 let Inst{31-27} = 0b11111;
1102 let Inst{26-23} = 0b0100;
1103 let Inst{22-20} = opcod;
1104 let Inst{15-12} = 0b1111;
1106 let Inst{5-4} = rot;
1109 //===----------------------------------------------------------------------===//
1111 //===----------------------------------------------------------------------===//
1113 //===----------------------------------------------------------------------===//
1114 // Miscellaneous Instructions.
1117 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1118 string asm, list<dag> pattern>
1119 : T2XI<oops, iops, itin, asm, pattern> {
1123 let Inst{11-8} = Rd;
1124 let Inst{26} = label{11};
1125 let Inst{14-12} = label{10-8};
1126 let Inst{7-0} = label{7-0};
1129 // LEApcrel - Load a pc-relative address into a register without offending the
1131 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1132 (ins t2adrlabel:$addr, pred:$p),
1133 IIC_iALUi, "adr{$p}.w\t$Rd, #$addr", []> {
1134 let Inst{31-27} = 0b11110;
1135 let Inst{25-24} = 0b10;
1136 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1139 let Inst{19-16} = 0b1111; // Rn
1144 let Inst{11-8} = Rd;
1145 let Inst{23} = addr{12};
1146 let Inst{21} = addr{12};
1147 let Inst{26} = addr{11};
1148 let Inst{14-12} = addr{10-8};
1149 let Inst{7-0} = addr{7-0};
1152 let neverHasSideEffects = 1, isReMaterializable = 1 in
1153 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1155 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1156 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1161 //===----------------------------------------------------------------------===//
1162 // Load / store Instructions.
1166 let canFoldAsLoad = 1, isReMaterializable = 1 in
1167 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si, GPR,
1168 UnOpFrag<(load node:$Src)>>;
1170 // Loads with zero extension
1171 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1172 rGPR, UnOpFrag<(zextloadi16 node:$Src)>>;
1173 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1174 rGPR, UnOpFrag<(zextloadi8 node:$Src)>>;
1176 // Loads with sign extension
1177 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1178 rGPR, UnOpFrag<(sextloadi16 node:$Src)>>;
1179 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1180 rGPR, UnOpFrag<(sextloadi8 node:$Src)>>;
1182 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1184 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1185 (ins t2addrmode_imm8s4:$addr),
1186 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", []>;
1187 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1189 // zextload i1 -> zextload i8
1190 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1191 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1192 def : T2Pat<(zextloadi1 t2addrmode_negimm8:$addr),
1193 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1194 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1195 (t2LDRBs t2addrmode_so_reg:$addr)>;
1196 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1197 (t2LDRBpci tconstpool:$addr)>;
1199 // extload -> zextload
1200 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1202 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1203 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1204 def : T2Pat<(extloadi1 t2addrmode_negimm8:$addr),
1205 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1206 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1207 (t2LDRBs t2addrmode_so_reg:$addr)>;
1208 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1209 (t2LDRBpci tconstpool:$addr)>;
1211 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1212 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1213 def : T2Pat<(extloadi8 t2addrmode_negimm8:$addr),
1214 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
1215 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1216 (t2LDRBs t2addrmode_so_reg:$addr)>;
1217 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1218 (t2LDRBpci tconstpool:$addr)>;
1220 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1221 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1222 def : T2Pat<(extloadi16 t2addrmode_negimm8:$addr),
1223 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
1224 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1225 (t2LDRHs t2addrmode_so_reg:$addr)>;
1226 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1227 (t2LDRHpci tconstpool:$addr)>;
1229 // FIXME: The destination register of the loads and stores can't be PC, but
1230 // can be SP. We need another regclass (similar to rGPR) to represent
1231 // that. Not a pressing issue since these are selected manually,
1236 let mayLoad = 1, neverHasSideEffects = 1 in {
1237 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1238 (ins t2addrmode_imm8:$addr),
1239 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1240 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1243 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1244 (ins GPR:$base, t2am_imm8_offset:$addr),
1245 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1246 "ldr", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1249 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1250 (ins t2addrmode_imm8:$addr),
1251 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1252 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1254 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1255 (ins GPR:$base, t2am_imm8_offset:$addr),
1256 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1257 "ldrb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1260 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1261 (ins t2addrmode_imm8:$addr),
1262 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1263 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1265 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1266 (ins GPR:$base, t2am_imm8_offset:$addr),
1267 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1268 "ldrh", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1271 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1272 (ins t2addrmode_imm8:$addr),
1273 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1274 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1276 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1277 (ins GPR:$base, t2am_imm8_offset:$addr),
1278 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1279 "ldrsb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1282 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1283 (ins t2addrmode_imm8:$addr),
1284 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1285 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1287 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1288 (ins GPR:$base, t2am_imm8_offset:$addr),
1289 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1290 "ldrsh", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1292 } // mayLoad = 1, neverHasSideEffects = 1
1294 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1295 // for disassembly only.
1296 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1297 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1298 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1299 "\t$Rt, $addr", []> {
1300 let Inst{31-27} = 0b11111;
1301 let Inst{26-25} = 0b00;
1302 let Inst{24} = signed;
1304 let Inst{22-21} = type;
1305 let Inst{20} = 1; // load
1307 let Inst{10-8} = 0b110; // PUW.
1311 let Inst{15-12} = Rt;
1312 let Inst{19-16} = addr{12-9};
1313 let Inst{7-0} = addr{7-0};
1316 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1317 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1318 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1319 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1320 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1323 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si, GPR,
1324 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1325 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1326 rGPR, BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1327 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1328 rGPR, BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1331 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1332 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1333 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1334 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
1337 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPRnopc:$base_wb),
1338 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1339 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1340 "str", "\t$Rt, [$Rn, $addr]!",
1341 "$Rn = $base_wb,@earlyclobber $base_wb",
1342 [(set GPRnopc:$base_wb,
1343 (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1345 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPRnopc:$base_wb),
1346 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1347 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1348 "str", "\t$Rt, [$Rn], $addr",
1349 "$Rn = $base_wb,@earlyclobber $base_wb",
1350 [(set GPRnopc:$base_wb,
1351 (post_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1353 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPRnopc:$base_wb),
1354 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1355 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1356 "strh", "\t$Rt, [$Rn, $addr]!",
1357 "$Rn = $base_wb,@earlyclobber $base_wb",
1358 [(set GPRnopc:$base_wb,
1359 (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1361 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPRnopc:$base_wb),
1362 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1363 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1364 "strh", "\t$Rt, [$Rn], $addr",
1365 "$Rn = $base_wb,@earlyclobber $base_wb",
1366 [(set GPRnopc:$base_wb,
1367 (post_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1369 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPRnopc:$base_wb),
1370 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1371 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1372 "strb", "\t$Rt, [$Rn, $addr]!",
1373 "$Rn = $base_wb,@earlyclobber $base_wb",
1374 [(set GPRnopc:$base_wb,
1375 (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1377 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPRnopc:$base_wb),
1378 (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
1379 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1380 "strb", "\t$Rt, [$Rn], $addr",
1381 "$Rn = $base_wb,@earlyclobber $base_wb",
1382 [(set GPRnopc:$base_wb,
1383 (post_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
1385 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1387 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1388 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1389 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1390 "\t$Rt, $addr", []> {
1391 let Inst{31-27} = 0b11111;
1392 let Inst{26-25} = 0b00;
1393 let Inst{24} = 0; // not signed
1395 let Inst{22-21} = type;
1396 let Inst{20} = 0; // store
1398 let Inst{10-8} = 0b110; // PUW
1402 let Inst{15-12} = Rt;
1403 let Inst{19-16} = addr{12-9};
1404 let Inst{7-0} = addr{7-0};
1407 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1408 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1409 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1411 // ldrd / strd pre / post variants
1412 // For disassembly only.
1414 def t2LDRD_PRE : T2Ii8s4Tied<1, 1, 1,
1415 (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1416 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1417 "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1419 def t2LDRD_POST : T2Ii8s4Tied<0, 1, 1,
1420 (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1421 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1422 "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
1424 def t2STRD_PRE : T2Ii8s4Tied<1, 1, 0, (outs GPR:$wb),
1425 (ins rGPR:$Rt, rGPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1426 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1428 def t2STRD_POST : T2Ii8s4Tied<0, 1, 0, (outs GPR:$wb),
1429 (ins rGPR:$Rt, rGPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1430 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
1432 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1433 // data/instruction access. These are for disassembly only.
1434 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1435 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1436 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1438 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1440 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1441 let Inst{31-25} = 0b1111100;
1442 let Inst{24} = instr;
1444 let Inst{21} = write;
1446 let Inst{15-12} = 0b1111;
1449 let addr{12} = 1; // add = TRUE
1450 let Inst{19-16} = addr{16-13}; // Rn
1451 let Inst{23} = addr{12}; // U
1452 let Inst{11-0} = addr{11-0}; // imm12
1455 def i8 : T2Ii8<(outs), (ins t2addrmode_negimm8:$addr), IIC_Preload, opc,
1457 [(ARMPreload t2addrmode_negimm8:$addr, (i32 write), (i32 instr))]> {
1458 let Inst{31-25} = 0b1111100;
1459 let Inst{24} = instr;
1460 let Inst{23} = 0; // U = 0
1462 let Inst{21} = write;
1464 let Inst{15-12} = 0b1111;
1465 let Inst{11-8} = 0b1100;
1468 let Inst{19-16} = addr{12-9}; // Rn
1469 let Inst{7-0} = addr{7-0}; // imm8
1472 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1474 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1475 let Inst{31-25} = 0b1111100;
1476 let Inst{24} = instr;
1477 let Inst{23} = 0; // add = TRUE for T1
1479 let Inst{21} = write;
1481 let Inst{15-12} = 0b1111;
1482 let Inst{11-6} = 0000000;
1485 let Inst{19-16} = addr{9-6}; // Rn
1486 let Inst{3-0} = addr{5-2}; // Rm
1487 let Inst{5-4} = addr{1-0}; // imm2
1489 let DecoderMethod = "DecodeT2LoadShift";
1493 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1494 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1495 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1497 //===----------------------------------------------------------------------===//
1498 // Load / store multiple Instructions.
1501 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1502 InstrItinClass itin_upd, bit L_bit> {
1504 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1505 itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
1509 let Inst{31-27} = 0b11101;
1510 let Inst{26-25} = 0b00;
1511 let Inst{24-23} = 0b01; // Increment After
1513 let Inst{21} = 0; // No writeback
1514 let Inst{20} = L_bit;
1515 let Inst{19-16} = Rn;
1516 let Inst{15-0} = regs;
1519 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1520 itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1524 let Inst{31-27} = 0b11101;
1525 let Inst{26-25} = 0b00;
1526 let Inst{24-23} = 0b01; // Increment After
1528 let Inst{21} = 1; // Writeback
1529 let Inst{20} = L_bit;
1530 let Inst{19-16} = Rn;
1531 let Inst{15-0} = regs;
1534 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1535 itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
1539 let Inst{31-27} = 0b11101;
1540 let Inst{26-25} = 0b00;
1541 let Inst{24-23} = 0b10; // Decrement Before
1543 let Inst{21} = 0; // No writeback
1544 let Inst{20} = L_bit;
1545 let Inst{19-16} = Rn;
1546 let Inst{15-0} = regs;
1549 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1550 itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1554 let Inst{31-27} = 0b11101;
1555 let Inst{26-25} = 0b00;
1556 let Inst{24-23} = 0b10; // Decrement Before
1558 let Inst{21} = 1; // Writeback
1559 let Inst{20} = L_bit;
1560 let Inst{19-16} = Rn;
1561 let Inst{15-0} = regs;
1565 let neverHasSideEffects = 1 in {
1567 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1568 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1570 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1571 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1573 } // neverHasSideEffects
1576 //===----------------------------------------------------------------------===//
1577 // Move Instructions.
1580 let neverHasSideEffects = 1 in
1581 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1582 "mov", ".w\t$Rd, $Rm", []> {
1583 let Inst{31-27} = 0b11101;
1584 let Inst{26-25} = 0b01;
1585 let Inst{24-21} = 0b0010;
1586 let Inst{19-16} = 0b1111; // Rn
1587 let Inst{14-12} = 0b000;
1588 let Inst{7-4} = 0b0000;
1591 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1592 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1593 AddedComplexity = 1 in
1594 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1595 "mov", ".w\t$Rd, $imm",
1596 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1597 let Inst{31-27} = 0b11110;
1599 let Inst{24-21} = 0b0010;
1600 let Inst{19-16} = 0b1111; // Rn
1604 def : t2InstAlias<"mov${s}${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1605 pred:$p, cc_out:$s)>;
1607 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1608 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
1609 "movw", "\t$Rd, $imm",
1610 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1611 let Inst{31-27} = 0b11110;
1613 let Inst{24-21} = 0b0010;
1614 let Inst{20} = 0; // The S bit.
1620 let Inst{11-8} = Rd;
1621 let Inst{19-16} = imm{15-12};
1622 let Inst{26} = imm{11};
1623 let Inst{14-12} = imm{10-8};
1624 let Inst{7-0} = imm{7-0};
1627 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1628 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1630 let Constraints = "$src = $Rd" in {
1631 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1632 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
1633 "movt", "\t$Rd, $imm",
1635 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1636 let Inst{31-27} = 0b11110;
1638 let Inst{24-21} = 0b0110;
1639 let Inst{20} = 0; // The S bit.
1645 let Inst{11-8} = Rd;
1646 let Inst{19-16} = imm{15-12};
1647 let Inst{26} = imm{11};
1648 let Inst{14-12} = imm{10-8};
1649 let Inst{7-0} = imm{7-0};
1652 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1653 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1656 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1658 //===----------------------------------------------------------------------===//
1659 // Extend Instructions.
1664 def t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1665 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1666 def t2SXTH : T2I_ext_rrot<0b000, "sxth",
1667 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1668 def t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1670 def t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1671 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1672 def t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1673 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1674 def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
1676 // TODO: SXT(A){B|H}16
1680 let AddedComplexity = 16 in {
1681 def t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1682 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1683 def t2UXTH : T2I_ext_rrot<0b001, "uxth",
1684 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1685 def t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1686 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1688 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1689 // The transformation should probably be done as a combiner action
1690 // instead so we can include a check for masking back in the upper
1691 // eight bits of the source into the lower eight bits of the result.
1692 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1693 // (t2UXTB16 rGPR:$Src, 3)>,
1694 // Requires<[HasT2ExtractPack, IsThumb2]>;
1695 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1696 (t2UXTB16 rGPR:$Src, 1)>,
1697 Requires<[HasT2ExtractPack, IsThumb2]>;
1699 def t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1700 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1701 def t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1702 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1703 def t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">;
1706 //===----------------------------------------------------------------------===//
1707 // Arithmetic Instructions.
1710 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1711 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1712 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1713 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1715 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1716 // FIXME: Eliminate them if we can write def : Pat patterns which defines
1717 // CPSR and the implicit def of CPSR is not needed.
1718 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1719 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1720 BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>;
1721 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1722 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1723 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1725 let hasPostISelHook = 1 in {
1726 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1727 BinOpWithFlagFrag<(ARMadde node:$LHS, node:$RHS, node:$FLAG)>, 1>;
1728 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1729 BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>>;
1733 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1734 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1736 // FIXME: Eliminate them if we can write def : Pat patterns which defines
1737 // CPSR and the implicit def of CPSR is not needed.
1738 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1739 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
1741 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1742 // The assume-no-carry-in form uses the negation of the input since add/sub
1743 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1744 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1746 // The AddedComplexity preferences the first variant over the others since
1747 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1748 let AddedComplexity = 1 in
1749 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1750 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1751 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1752 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1753 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1754 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1755 let AddedComplexity = 1 in
1756 def : T2Pat<(ARMaddc rGPR:$src, imm0_255_neg:$imm),
1757 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1758 def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm),
1759 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1760 // The with-carry-in form matches bitwise not instead of the negation.
1761 // Effectively, the inverse interpretation of the carry flag already accounts
1762 // for part of the negation.
1763 let AddedComplexity = 1 in
1764 def : T2Pat<(ARMadde rGPR:$src, imm0_255_not:$imm, CPSR),
1765 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
1766 def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR),
1767 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
1769 // Select Bytes -- for disassembly only
1771 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1772 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []>,
1773 Requires<[IsThumb2, HasThumb2DSP]> {
1774 let Inst{31-27} = 0b11111;
1775 let Inst{26-24} = 0b010;
1777 let Inst{22-20} = 0b010;
1778 let Inst{15-12} = 0b1111;
1780 let Inst{6-4} = 0b000;
1783 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1784 // And Miscellaneous operations -- for disassembly only
1785 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1786 list<dag> pat = [/* For disassembly only; pattern left blank */],
1787 dag iops = (ins rGPR:$Rn, rGPR:$Rm),
1788 string asm = "\t$Rd, $Rn, $Rm">
1789 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
1790 Requires<[IsThumb2, HasThumb2DSP]> {
1791 let Inst{31-27} = 0b11111;
1792 let Inst{26-23} = 0b0101;
1793 let Inst{22-20} = op22_20;
1794 let Inst{15-12} = 0b1111;
1795 let Inst{7-4} = op7_4;
1801 let Inst{11-8} = Rd;
1802 let Inst{19-16} = Rn;
1806 // Saturating add/subtract -- for disassembly only
1808 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1809 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))],
1810 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1811 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1812 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1813 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1814 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [],
1815 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1816 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [],
1817 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1818 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1819 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1820 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))],
1821 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1822 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1823 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1824 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1825 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1826 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1827 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1828 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1829 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1831 // Signed/Unsigned add/subtract -- for disassembly only
1833 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1834 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1835 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1836 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1837 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1838 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1839 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1840 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1841 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1842 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1843 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1844 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1846 // Signed/Unsigned halving add/subtract -- for disassembly only
1848 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1849 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1850 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1851 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1852 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1853 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1854 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1855 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1856 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1857 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1858 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1859 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1861 // Helper class for disassembly only
1862 // A6.3.16 & A6.3.17
1863 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1864 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1865 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1866 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1867 let Inst{31-27} = 0b11111;
1868 let Inst{26-24} = 0b011;
1869 let Inst{23} = long;
1870 let Inst{22-20} = op22_20;
1871 let Inst{7-4} = op7_4;
1874 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1875 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1876 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1877 let Inst{31-27} = 0b11111;
1878 let Inst{26-24} = 0b011;
1879 let Inst{23} = long;
1880 let Inst{22-20} = op22_20;
1881 let Inst{7-4} = op7_4;
1884 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1886 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1887 (ins rGPR:$Rn, rGPR:$Rm),
1888 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>,
1889 Requires<[IsThumb2, HasThumb2DSP]> {
1890 let Inst{15-12} = 0b1111;
1892 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1893 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1894 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>,
1895 Requires<[IsThumb2, HasThumb2DSP]>;
1897 // Signed/Unsigned saturate -- for disassembly only
1899 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1900 string opc, string asm, list<dag> pattern>
1901 : T2I<oops, iops, itin, opc, asm, pattern> {
1907 let Inst{11-8} = Rd;
1908 let Inst{19-16} = Rn;
1909 let Inst{4-0} = sat_imm;
1910 let Inst{21} = sh{5};
1911 let Inst{14-12} = sh{4-2};
1912 let Inst{7-6} = sh{1-0};
1916 (outs rGPR:$Rd), (ins imm1_32:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1917 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1918 [/* For disassembly only; pattern left blank */]> {
1919 let Inst{31-27} = 0b11110;
1920 let Inst{25-22} = 0b1100;
1925 def t2SSAT16: T2SatI<
1926 (outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary,
1927 "ssat16", "\t$Rd, $sat_imm, $Rn",
1928 [/* For disassembly only; pattern left blank */]>,
1929 Requires<[IsThumb2, HasThumb2DSP]> {
1930 let Inst{31-27} = 0b11110;
1931 let Inst{25-22} = 0b1100;
1934 let Inst{21} = 1; // sh = '1'
1935 let Inst{14-12} = 0b000; // imm3 = '000'
1936 let Inst{7-6} = 0b00; // imm2 = '00'
1940 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1941 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
1942 [/* For disassembly only; pattern left blank */]> {
1943 let Inst{31-27} = 0b11110;
1944 let Inst{25-22} = 0b1110;
1949 def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn),
1951 "usat16", "\t$Rd, $sat_imm, $Rn",
1952 [/* For disassembly only; pattern left blank */]>,
1953 Requires<[IsThumb2, HasThumb2DSP]> {
1954 let Inst{31-27} = 0b11110;
1955 let Inst{25-22} = 0b1110;
1958 let Inst{21} = 1; // sh = '1'
1959 let Inst{14-12} = 0b000; // imm3 = '000'
1960 let Inst{7-6} = 0b00; // imm2 = '00'
1963 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
1964 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
1966 //===----------------------------------------------------------------------===//
1967 // Shift and rotate Instructions.
1970 defm t2LSL : T2I_sh_ir<0b00, "lsl", imm0_31,
1971 BinOpFrag<(shl node:$LHS, node:$RHS)>, "t2LSL">;
1972 defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr,
1973 BinOpFrag<(srl node:$LHS, node:$RHS)>, "t2LSR">;
1974 defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr,
1975 BinOpFrag<(sra node:$LHS, node:$RHS)>, "t2ASR">;
1976 defm t2ROR : T2I_sh_ir<0b11, "ror", imm0_31,
1977 BinOpFrag<(rotr node:$LHS, node:$RHS)>, "t2ROR">;
1979 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
1980 def : Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
1981 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
1983 let Uses = [CPSR] in {
1984 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
1985 "rrx", "\t$Rd, $Rm",
1986 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
1987 let Inst{31-27} = 0b11101;
1988 let Inst{26-25} = 0b01;
1989 let Inst{24-21} = 0b0010;
1990 let Inst{19-16} = 0b1111; // Rn
1991 let Inst{14-12} = 0b000;
1992 let Inst{7-4} = 0b0011;
1996 let isCodeGenOnly = 1, Defs = [CPSR] in {
1997 def t2MOVsrl_flag : T2TwoRegShiftImm<
1998 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
1999 "lsrs", ".w\t$Rd, $Rm, #1",
2000 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
2001 let Inst{31-27} = 0b11101;
2002 let Inst{26-25} = 0b01;
2003 let Inst{24-21} = 0b0010;
2004 let Inst{20} = 1; // The S bit.
2005 let Inst{19-16} = 0b1111; // Rn
2006 let Inst{5-4} = 0b01; // Shift type.
2007 // Shift amount = Inst{14-12:7-6} = 1.
2008 let Inst{14-12} = 0b000;
2009 let Inst{7-6} = 0b01;
2011 def t2MOVsra_flag : T2TwoRegShiftImm<
2012 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
2013 "asrs", ".w\t$Rd, $Rm, #1",
2014 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
2015 let Inst{31-27} = 0b11101;
2016 let Inst{26-25} = 0b01;
2017 let Inst{24-21} = 0b0010;
2018 let Inst{20} = 1; // The S bit.
2019 let Inst{19-16} = 0b1111; // Rn
2020 let Inst{5-4} = 0b10; // Shift type.
2021 // Shift amount = Inst{14-12:7-6} = 1.
2022 let Inst{14-12} = 0b000;
2023 let Inst{7-6} = 0b01;
2027 //===----------------------------------------------------------------------===//
2028 // Bitwise Instructions.
2031 defm t2AND : T2I_bin_w_irs<0b0000, "and",
2032 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2033 BinOpFrag<(and node:$LHS, node:$RHS)>, "t2AND", 1>;
2034 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
2035 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2036 BinOpFrag<(or node:$LHS, node:$RHS)>, "t2ORR", 1>;
2037 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
2038 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2039 BinOpFrag<(xor node:$LHS, node:$RHS)>, "t2EOR", 1>;
2041 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
2042 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2043 BinOpFrag<(and node:$LHS, (not node:$RHS))>,
2046 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
2047 string opc, string asm, list<dag> pattern>
2048 : T2I<oops, iops, itin, opc, asm, pattern> {
2053 let Inst{11-8} = Rd;
2054 let Inst{4-0} = msb{4-0};
2055 let Inst{14-12} = lsb{4-2};
2056 let Inst{7-6} = lsb{1-0};
2059 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2060 string opc, string asm, list<dag> pattern>
2061 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2064 let Inst{19-16} = Rn;
2067 let Constraints = "$src = $Rd" in
2068 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2069 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2070 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2071 let Inst{31-27} = 0b11110;
2072 let Inst{26} = 0; // should be 0.
2074 let Inst{24-20} = 0b10110;
2075 let Inst{19-16} = 0b1111; // Rn
2077 let Inst{5} = 0; // should be 0.
2080 let msb{4-0} = imm{9-5};
2081 let lsb{4-0} = imm{4-0};
2084 def t2SBFX: T2TwoRegBitFI<
2085 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2086 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2087 let Inst{31-27} = 0b11110;
2089 let Inst{24-20} = 0b10100;
2093 def t2UBFX: T2TwoRegBitFI<
2094 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2095 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2096 let Inst{31-27} = 0b11110;
2098 let Inst{24-20} = 0b11100;
2102 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2103 let Constraints = "$src = $Rd" in {
2104 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2105 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2106 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2107 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2108 bf_inv_mask_imm:$imm))]> {
2109 let Inst{31-27} = 0b11110;
2110 let Inst{26} = 0; // should be 0.
2112 let Inst{24-20} = 0b10110;
2114 let Inst{5} = 0; // should be 0.
2117 let msb{4-0} = imm{9-5};
2118 let lsb{4-0} = imm{4-0};
2121 // GNU as only supports this form of bfi (w/ 4 arguments)
2122 let isAsmParserOnly = 1 in
2123 def t2BFI4p : T2TwoRegBitFI<(outs rGPR:$Rd),
2124 (ins rGPR:$src, rGPR:$Rn, lsb_pos_imm:$lsbit,
2126 IIC_iBITi, "bfi", "\t$Rd, $Rn, $lsbit, $width",
2128 let Inst{31-27} = 0b11110;
2129 let Inst{26} = 0; // should be 0.
2131 let Inst{24-20} = 0b10110;
2133 let Inst{5} = 0; // should be 0.
2137 let msb{4-0} = width; // Custom encoder => lsb+width-1
2138 let lsb{4-0} = lsbit;
2142 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2143 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2144 BinOpFrag<(or node:$LHS, (not node:$RHS))>,
2147 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2148 let AddedComplexity = 1 in
2149 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2150 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2151 UnOpFrag<(not node:$Src)>, 1, 1>;
2154 let AddedComplexity = 1 in
2155 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2156 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2158 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2159 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2160 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2161 Requires<[IsThumb2]>;
2163 def : T2Pat<(t2_so_imm_not:$src),
2164 (t2MVNi t2_so_imm_not:$src)>;
2166 //===----------------------------------------------------------------------===//
2167 // Multiply Instructions.
2169 let isCommutable = 1 in
2170 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2171 "mul", "\t$Rd, $Rn, $Rm",
2172 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2173 let Inst{31-27} = 0b11111;
2174 let Inst{26-23} = 0b0110;
2175 let Inst{22-20} = 0b000;
2176 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2177 let Inst{7-4} = 0b0000; // Multiply
2180 def t2MLA: T2FourReg<
2181 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2182 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2183 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2184 let Inst{31-27} = 0b11111;
2185 let Inst{26-23} = 0b0110;
2186 let Inst{22-20} = 0b000;
2187 let Inst{7-4} = 0b0000; // Multiply
2190 def t2MLS: T2FourReg<
2191 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2192 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2193 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2194 let Inst{31-27} = 0b11111;
2195 let Inst{26-23} = 0b0110;
2196 let Inst{22-20} = 0b000;
2197 let Inst{7-4} = 0b0001; // Multiply and Subtract
2200 // Extra precision multiplies with low / high results
2201 let neverHasSideEffects = 1 in {
2202 let isCommutable = 1 in {
2203 def t2SMULL : T2MulLong<0b000, 0b0000,
2204 (outs rGPR:$RdLo, rGPR:$RdHi),
2205 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2206 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2208 def t2UMULL : T2MulLong<0b010, 0b0000,
2209 (outs rGPR:$RdLo, rGPR:$RdHi),
2210 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2211 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2214 // Multiply + accumulate
2215 def t2SMLAL : T2MulLong<0b100, 0b0000,
2216 (outs rGPR:$RdLo, rGPR:$RdHi),
2217 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2218 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2220 def t2UMLAL : T2MulLong<0b110, 0b0000,
2221 (outs rGPR:$RdLo, rGPR:$RdHi),
2222 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2223 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2225 def t2UMAAL : T2MulLong<0b110, 0b0110,
2226 (outs rGPR:$RdLo, rGPR:$RdHi),
2227 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2228 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2229 Requires<[IsThumb2, HasThumb2DSP]>;
2230 } // neverHasSideEffects
2232 // Rounding variants of the below included for disassembly only
2234 // Most significant word multiply
2235 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2236 "smmul", "\t$Rd, $Rn, $Rm",
2237 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]>,
2238 Requires<[IsThumb2, HasThumb2DSP]> {
2239 let Inst{31-27} = 0b11111;
2240 let Inst{26-23} = 0b0110;
2241 let Inst{22-20} = 0b101;
2242 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2243 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2246 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2247 "smmulr", "\t$Rd, $Rn, $Rm", []>,
2248 Requires<[IsThumb2, HasThumb2DSP]> {
2249 let Inst{31-27} = 0b11111;
2250 let Inst{26-23} = 0b0110;
2251 let Inst{22-20} = 0b101;
2252 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2253 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2256 def t2SMMLA : T2FourReg<
2257 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2258 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2259 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>,
2260 Requires<[IsThumb2, HasThumb2DSP]> {
2261 let Inst{31-27} = 0b11111;
2262 let Inst{26-23} = 0b0110;
2263 let Inst{22-20} = 0b101;
2264 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2267 def t2SMMLAR: T2FourReg<
2268 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2269 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
2270 Requires<[IsThumb2, HasThumb2DSP]> {
2271 let Inst{31-27} = 0b11111;
2272 let Inst{26-23} = 0b0110;
2273 let Inst{22-20} = 0b101;
2274 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2277 def t2SMMLS: T2FourReg<
2278 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2279 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2280 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>,
2281 Requires<[IsThumb2, HasThumb2DSP]> {
2282 let Inst{31-27} = 0b11111;
2283 let Inst{26-23} = 0b0110;
2284 let Inst{22-20} = 0b110;
2285 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2288 def t2SMMLSR:T2FourReg<
2289 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2290 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
2291 Requires<[IsThumb2, HasThumb2DSP]> {
2292 let Inst{31-27} = 0b11111;
2293 let Inst{26-23} = 0b0110;
2294 let Inst{22-20} = 0b110;
2295 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2298 multiclass T2I_smul<string opc, PatFrag opnode> {
2299 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2300 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2301 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2302 (sext_inreg rGPR:$Rm, i16)))]>,
2303 Requires<[IsThumb2, HasThumb2DSP]> {
2304 let Inst{31-27} = 0b11111;
2305 let Inst{26-23} = 0b0110;
2306 let Inst{22-20} = 0b001;
2307 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2308 let Inst{7-6} = 0b00;
2309 let Inst{5-4} = 0b00;
2312 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2313 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2314 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2315 (sra rGPR:$Rm, (i32 16))))]>,
2316 Requires<[IsThumb2, HasThumb2DSP]> {
2317 let Inst{31-27} = 0b11111;
2318 let Inst{26-23} = 0b0110;
2319 let Inst{22-20} = 0b001;
2320 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2321 let Inst{7-6} = 0b00;
2322 let Inst{5-4} = 0b01;
2325 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2326 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2327 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2328 (sext_inreg rGPR:$Rm, i16)))]>,
2329 Requires<[IsThumb2, HasThumb2DSP]> {
2330 let Inst{31-27} = 0b11111;
2331 let Inst{26-23} = 0b0110;
2332 let Inst{22-20} = 0b001;
2333 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2334 let Inst{7-6} = 0b00;
2335 let Inst{5-4} = 0b10;
2338 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2339 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2340 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2341 (sra rGPR:$Rm, (i32 16))))]>,
2342 Requires<[IsThumb2, HasThumb2DSP]> {
2343 let Inst{31-27} = 0b11111;
2344 let Inst{26-23} = 0b0110;
2345 let Inst{22-20} = 0b001;
2346 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2347 let Inst{7-6} = 0b00;
2348 let Inst{5-4} = 0b11;
2351 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2352 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2353 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2354 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]>,
2355 Requires<[IsThumb2, HasThumb2DSP]> {
2356 let Inst{31-27} = 0b11111;
2357 let Inst{26-23} = 0b0110;
2358 let Inst{22-20} = 0b011;
2359 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2360 let Inst{7-6} = 0b00;
2361 let Inst{5-4} = 0b00;
2364 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2365 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2366 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2367 (sra rGPR:$Rm, (i32 16))), (i32 16)))]>,
2368 Requires<[IsThumb2, HasThumb2DSP]> {
2369 let Inst{31-27} = 0b11111;
2370 let Inst{26-23} = 0b0110;
2371 let Inst{22-20} = 0b011;
2372 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2373 let Inst{7-6} = 0b00;
2374 let Inst{5-4} = 0b01;
2379 multiclass T2I_smla<string opc, PatFrag opnode> {
2381 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2382 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2383 [(set rGPR:$Rd, (add rGPR:$Ra,
2384 (opnode (sext_inreg rGPR:$Rn, i16),
2385 (sext_inreg rGPR:$Rm, i16))))]>,
2386 Requires<[IsThumb2, HasThumb2DSP]> {
2387 let Inst{31-27} = 0b11111;
2388 let Inst{26-23} = 0b0110;
2389 let Inst{22-20} = 0b001;
2390 let Inst{7-6} = 0b00;
2391 let Inst{5-4} = 0b00;
2395 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2396 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2397 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2398 (sra rGPR:$Rm, (i32 16)))))]>,
2399 Requires<[IsThumb2, HasThumb2DSP]> {
2400 let Inst{31-27} = 0b11111;
2401 let Inst{26-23} = 0b0110;
2402 let Inst{22-20} = 0b001;
2403 let Inst{7-6} = 0b00;
2404 let Inst{5-4} = 0b01;
2408 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2409 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2410 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2411 (sext_inreg rGPR:$Rm, i16))))]>,
2412 Requires<[IsThumb2, HasThumb2DSP]> {
2413 let Inst{31-27} = 0b11111;
2414 let Inst{26-23} = 0b0110;
2415 let Inst{22-20} = 0b001;
2416 let Inst{7-6} = 0b00;
2417 let Inst{5-4} = 0b10;
2421 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2422 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2423 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2424 (sra rGPR:$Rm, (i32 16)))))]>,
2425 Requires<[IsThumb2, HasThumb2DSP]> {
2426 let Inst{31-27} = 0b11111;
2427 let Inst{26-23} = 0b0110;
2428 let Inst{22-20} = 0b001;
2429 let Inst{7-6} = 0b00;
2430 let Inst{5-4} = 0b11;
2434 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2435 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2436 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2437 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]>,
2438 Requires<[IsThumb2, HasThumb2DSP]> {
2439 let Inst{31-27} = 0b11111;
2440 let Inst{26-23} = 0b0110;
2441 let Inst{22-20} = 0b011;
2442 let Inst{7-6} = 0b00;
2443 let Inst{5-4} = 0b00;
2447 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2448 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2449 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2450 (sra rGPR:$Rm, (i32 16))), (i32 16))))]>,
2451 Requires<[IsThumb2, HasThumb2DSP]> {
2452 let Inst{31-27} = 0b11111;
2453 let Inst{26-23} = 0b0110;
2454 let Inst{22-20} = 0b011;
2455 let Inst{7-6} = 0b00;
2456 let Inst{5-4} = 0b01;
2460 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2461 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2463 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2464 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2465 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2466 [/* For disassembly only; pattern left blank */]>,
2467 Requires<[IsThumb2, HasThumb2DSP]>;
2468 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2469 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2470 [/* For disassembly only; pattern left blank */]>,
2471 Requires<[IsThumb2, HasThumb2DSP]>;
2472 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2473 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2474 [/* For disassembly only; pattern left blank */]>,
2475 Requires<[IsThumb2, HasThumb2DSP]>;
2476 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2477 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2478 [/* For disassembly only; pattern left blank */]>,
2479 Requires<[IsThumb2, HasThumb2DSP]>;
2481 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2482 // These are for disassembly only.
2484 def t2SMUAD: T2ThreeReg_mac<
2485 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2486 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>,
2487 Requires<[IsThumb2, HasThumb2DSP]> {
2488 let Inst{15-12} = 0b1111;
2490 def t2SMUADX:T2ThreeReg_mac<
2491 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2492 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []>,
2493 Requires<[IsThumb2, HasThumb2DSP]> {
2494 let Inst{15-12} = 0b1111;
2496 def t2SMUSD: T2ThreeReg_mac<
2497 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2498 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []>,
2499 Requires<[IsThumb2, HasThumb2DSP]> {
2500 let Inst{15-12} = 0b1111;
2502 def t2SMUSDX:T2ThreeReg_mac<
2503 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2504 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []>,
2505 Requires<[IsThumb2, HasThumb2DSP]> {
2506 let Inst{15-12} = 0b1111;
2508 def t2SMLAD : T2FourReg_mac<
2509 0, 0b010, 0b0000, (outs rGPR:$Rd),
2510 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2511 "\t$Rd, $Rn, $Rm, $Ra", []>,
2512 Requires<[IsThumb2, HasThumb2DSP]>;
2513 def t2SMLADX : T2FourReg_mac<
2514 0, 0b010, 0b0001, (outs rGPR:$Rd),
2515 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2516 "\t$Rd, $Rn, $Rm, $Ra", []>,
2517 Requires<[IsThumb2, HasThumb2DSP]>;
2518 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2519 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2520 "\t$Rd, $Rn, $Rm, $Ra", []>,
2521 Requires<[IsThumb2, HasThumb2DSP]>;
2522 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2523 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2524 "\t$Rd, $Rn, $Rm, $Ra", []>,
2525 Requires<[IsThumb2, HasThumb2DSP]>;
2526 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2527 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2528 "\t$Ra, $Rd, $Rm, $Rn", []>,
2529 Requires<[IsThumb2, HasThumb2DSP]>;
2530 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2531 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2532 "\t$Ra, $Rd, $Rm, $Rn", []>,
2533 Requires<[IsThumb2, HasThumb2DSP]>;
2534 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2535 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2536 "\t$Ra, $Rd, $Rm, $Rn", []>,
2537 Requires<[IsThumb2, HasThumb2DSP]>;
2538 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2539 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2540 "\t$Ra, $Rd, $Rm, $Rn", []>,
2541 Requires<[IsThumb2, HasThumb2DSP]>;
2543 //===----------------------------------------------------------------------===//
2544 // Division Instructions.
2545 // Signed and unsigned division on v7-M
2547 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2548 "sdiv", "\t$Rd, $Rn, $Rm",
2549 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
2550 Requires<[HasDivide, IsThumb2]> {
2551 let Inst{31-27} = 0b11111;
2552 let Inst{26-21} = 0b011100;
2554 let Inst{15-12} = 0b1111;
2555 let Inst{7-4} = 0b1111;
2558 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2559 "udiv", "\t$Rd, $Rn, $Rm",
2560 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
2561 Requires<[HasDivide, IsThumb2]> {
2562 let Inst{31-27} = 0b11111;
2563 let Inst{26-21} = 0b011101;
2565 let Inst{15-12} = 0b1111;
2566 let Inst{7-4} = 0b1111;
2569 //===----------------------------------------------------------------------===//
2570 // Misc. Arithmetic Instructions.
2573 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2574 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2575 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2576 let Inst{31-27} = 0b11111;
2577 let Inst{26-22} = 0b01010;
2578 let Inst{21-20} = op1;
2579 let Inst{15-12} = 0b1111;
2580 let Inst{7-6} = 0b10;
2581 let Inst{5-4} = op2;
2585 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2586 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2588 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2589 "rbit", "\t$Rd, $Rm",
2590 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2592 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2593 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2595 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2596 "rev16", ".w\t$Rd, $Rm",
2597 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>;
2599 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2600 "revsh", ".w\t$Rd, $Rm",
2601 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>;
2603 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
2604 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
2605 (t2REVSH rGPR:$Rm)>;
2607 def t2PKHBT : T2ThreeReg<
2608 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
2609 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm, lsl $sh",
2610 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2611 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
2613 Requires<[HasT2ExtractPack, IsThumb2]> {
2614 let Inst{31-27} = 0b11101;
2615 let Inst{26-25} = 0b01;
2616 let Inst{24-20} = 0b01100;
2617 let Inst{5} = 0; // BT form
2621 let Inst{14-12} = sh{4-2};
2622 let Inst{7-6} = sh{1-0};
2625 // Alternate cases for PKHBT where identities eliminate some nodes.
2626 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2627 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2628 Requires<[HasT2ExtractPack, IsThumb2]>;
2629 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2630 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2631 Requires<[HasT2ExtractPack, IsThumb2]>;
2633 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2634 // will match the pattern below.
2635 def t2PKHTB : T2ThreeReg<
2636 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
2637 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm, asr $sh",
2638 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2639 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
2641 Requires<[HasT2ExtractPack, IsThumb2]> {
2642 let Inst{31-27} = 0b11101;
2643 let Inst{26-25} = 0b01;
2644 let Inst{24-20} = 0b01100;
2645 let Inst{5} = 1; // TB form
2649 let Inst{14-12} = sh{4-2};
2650 let Inst{7-6} = sh{1-0};
2653 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2654 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2655 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2656 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2657 Requires<[HasT2ExtractPack, IsThumb2]>;
2658 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2659 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2660 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
2661 Requires<[HasT2ExtractPack, IsThumb2]>;
2663 //===----------------------------------------------------------------------===//
2664 // Comparison Instructions...
2666 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2667 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2668 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>, "t2CMP">;
2670 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm),
2671 (t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>;
2672 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, rGPR:$rhs),
2673 (t2CMPrr GPRnopc:$lhs, rGPR:$rhs)>;
2674 def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg:$rhs),
2675 (t2CMPrs GPRnopc:$lhs, t2_so_reg:$rhs)>;
2677 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2678 // Compare-to-zero still works out, just not the relationals
2679 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2680 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2681 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2682 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2683 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>,
2686 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2687 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2689 def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
2690 (t2CMNzri GPRnopc:$src, t2_so_imm_neg:$imm)>;
2692 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2693 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2694 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>,
2696 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2697 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2698 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>,
2701 // Conditional moves
2702 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2703 // a two-value operand where a dag node expects two operands. :(
2704 let neverHasSideEffects = 1 in {
2705 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
2706 (ins rGPR:$false, rGPR:$Rm, pred:$p),
2708 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2709 RegConstraint<"$false = $Rd">;
2711 let isMoveImm = 1 in
2712 def t2MOVCCi : t2PseudoInst<(outs rGPR:$Rd),
2713 (ins rGPR:$false, t2_so_imm:$imm, pred:$p),
2715 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2716 RegConstraint<"$false = $Rd">;
2718 // FIXME: Pseudo-ize these. For now, just mark codegen only.
2719 let isCodeGenOnly = 1 in {
2720 let isMoveImm = 1 in
2721 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, imm0_65535_expr:$imm),
2723 "movw", "\t$Rd, $imm", []>,
2724 RegConstraint<"$false = $Rd"> {
2725 let Inst{31-27} = 0b11110;
2727 let Inst{24-21} = 0b0010;
2728 let Inst{20} = 0; // The S bit.
2734 let Inst{11-8} = Rd;
2735 let Inst{19-16} = imm{15-12};
2736 let Inst{26} = imm{11};
2737 let Inst{14-12} = imm{10-8};
2738 let Inst{7-0} = imm{7-0};
2741 let isMoveImm = 1 in
2742 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2743 (ins rGPR:$false, i32imm:$src, pred:$p),
2744 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2746 let isMoveImm = 1 in
2747 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2748 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2749 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2750 imm:$cc, CCR:$ccr))*/]>,
2751 RegConstraint<"$false = $Rd"> {
2752 let Inst{31-27} = 0b11110;
2754 let Inst{24-21} = 0b0011;
2755 let Inst{20} = 0; // The S bit.
2756 let Inst{19-16} = 0b1111; // Rn
2760 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2761 string opc, string asm, list<dag> pattern>
2762 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2763 let Inst{31-27} = 0b11101;
2764 let Inst{26-25} = 0b01;
2765 let Inst{24-21} = 0b0010;
2766 let Inst{20} = 0; // The S bit.
2767 let Inst{19-16} = 0b1111; // Rn
2768 let Inst{5-4} = opcod; // Shift type.
2770 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2771 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2772 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2773 RegConstraint<"$false = $Rd">;
2774 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2775 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2776 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2777 RegConstraint<"$false = $Rd">;
2778 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2779 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2780 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2781 RegConstraint<"$false = $Rd">;
2782 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2783 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2784 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2785 RegConstraint<"$false = $Rd">;
2786 } // isCodeGenOnly = 1
2787 } // neverHasSideEffects
2789 //===----------------------------------------------------------------------===//
2790 // Atomic operations intrinsics
2793 // memory barriers protect the atomic sequences
2794 let hasSideEffects = 1 in {
2795 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2796 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2797 Requires<[IsThumb, HasDB]> {
2799 let Inst{31-4} = 0xf3bf8f5;
2800 let Inst{3-0} = opt;
2804 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2805 "dsb", "\t$opt", []>,
2806 Requires<[IsThumb, HasDB]> {
2808 let Inst{31-4} = 0xf3bf8f4;
2809 let Inst{3-0} = opt;
2812 def t2ISB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2814 []>, Requires<[IsThumb2, HasDB]> {
2816 let Inst{31-4} = 0xf3bf8f6;
2817 let Inst{3-0} = opt;
2820 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
2821 InstrItinClass itin, string opc, string asm, string cstr,
2822 list<dag> pattern, bits<4> rt2 = 0b1111>
2823 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2824 let Inst{31-27} = 0b11101;
2825 let Inst{26-20} = 0b0001101;
2826 let Inst{11-8} = rt2;
2827 let Inst{7-6} = 0b01;
2828 let Inst{5-4} = opcod;
2829 let Inst{3-0} = 0b1111;
2833 let Inst{19-16} = addr;
2834 let Inst{15-12} = Rt;
2836 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
2837 InstrItinClass itin, string opc, string asm, string cstr,
2838 list<dag> pattern, bits<4> rt2 = 0b1111>
2839 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2840 let Inst{31-27} = 0b11101;
2841 let Inst{26-20} = 0b0001100;
2842 let Inst{11-8} = rt2;
2843 let Inst{7-6} = 0b01;
2844 let Inst{5-4} = opcod;
2850 let Inst{19-16} = addr;
2851 let Inst{15-12} = Rt;
2854 let mayLoad = 1 in {
2855 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2856 AddrModeNone, 4, NoItinerary,
2857 "ldrexb", "\t$Rt, $addr", "", []>;
2858 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2859 AddrModeNone, 4, NoItinerary,
2860 "ldrexh", "\t$Rt, $addr", "", []>;
2861 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2862 AddrModeNone, 4, NoItinerary,
2863 "ldrex", "\t$Rt, $addr", "", []> {
2864 let Inst{31-27} = 0b11101;
2865 let Inst{26-20} = 0b0000101;
2866 let Inst{11-8} = 0b1111;
2867 let Inst{7-0} = 0b00000000; // imm8 = 0
2871 let Inst{19-16} = addr;
2872 let Inst{15-12} = Rt;
2874 let hasExtraDefRegAllocReq = 1 in
2875 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
2876 (ins t2addrmode_reg:$addr),
2877 AddrModeNone, 4, NoItinerary,
2878 "ldrexd", "\t$Rt, $Rt2, $addr", "",
2881 let Inst{11-8} = Rt2;
2885 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2886 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
2887 (ins rGPR:$Rt, t2addrmode_reg:$addr),
2888 AddrModeNone, 4, NoItinerary,
2889 "strexb", "\t$Rd, $Rt, $addr", "", []>;
2890 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
2891 (ins rGPR:$Rt, t2addrmode_reg:$addr),
2892 AddrModeNone, 4, NoItinerary,
2893 "strexh", "\t$Rd, $Rt, $addr", "", []>;
2894 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, t2addrmode_reg:$addr),
2895 AddrModeNone, 4, NoItinerary,
2896 "strex", "\t$Rd, $Rt, $addr", "",
2898 let Inst{31-27} = 0b11101;
2899 let Inst{26-20} = 0b0000100;
2900 let Inst{7-0} = 0b00000000; // imm8 = 0
2905 let Inst{11-8} = Rd;
2906 let Inst{19-16} = addr;
2907 let Inst{15-12} = Rt;
2911 let hasExtraSrcRegAllocReq = 1, Constraints = "@earlyclobber $Rd" in
2912 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2913 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_reg:$addr),
2914 AddrModeNone, 4, NoItinerary,
2915 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
2918 let Inst{11-8} = Rt2;
2921 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", []>,
2922 Requires<[IsThumb2, HasV7]> {
2923 let Inst{31-16} = 0xf3bf;
2924 let Inst{15-14} = 0b10;
2927 let Inst{11-8} = 0b1111;
2928 let Inst{7-4} = 0b0010;
2929 let Inst{3-0} = 0b1111;
2932 //===----------------------------------------------------------------------===//
2933 // SJLJ Exception handling intrinsics
2934 // eh_sjlj_setjmp() is an instruction sequence to store the return
2935 // address and save #0 in R0 for the non-longjmp case.
2936 // Since by its nature we may be coming from some other function to get
2937 // here, and we're using the stack frame for the containing function to
2938 // save/restore registers, we can't keep anything live in regs across
2939 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2940 // when we get here from a longjmp(). We force everything out of registers
2941 // except for our own input by listing the relevant registers in Defs. By
2942 // doing so, we also cause the prologue/epilogue code to actively preserve
2943 // all of the callee-saved resgisters, which is exactly what we want.
2944 // $val is a scratch register for our use.
2946 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
2947 QQQQ0, QQQQ1, QQQQ2, QQQQ3 ],
2948 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2949 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2950 AddrModeNone, 0, NoItinerary, "", "",
2951 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2952 Requires<[IsThumb2, HasVFP2]>;
2956 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
2957 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2958 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2959 AddrModeNone, 0, NoItinerary, "", "",
2960 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2961 Requires<[IsThumb2, NoVFP]>;
2965 //===----------------------------------------------------------------------===//
2966 // Control-Flow Instructions
2969 // FIXME: remove when we have a way to marking a MI with these properties.
2970 // FIXME: Should pc be an implicit operand like PICADD, etc?
2971 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2972 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2973 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2974 reglist:$regs, variable_ops),
2975 4, IIC_iLoad_mBr, [],
2976 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
2977 RegConstraint<"$Rn = $wb">;
2979 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2980 let isPredicable = 1 in
2981 def t2B : T2XI<(outs), (ins uncondbrtarget:$target), IIC_Br,
2983 [(br bb:$target)]> {
2984 let Inst{31-27} = 0b11110;
2985 let Inst{15-14} = 0b10;
2989 let Inst{26} = target{19};
2990 let Inst{11} = target{18};
2991 let Inst{13} = target{17};
2992 let Inst{21-16} = target{16-11};
2993 let Inst{10-0} = target{10-0};
2996 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2997 def t2BR_JT : t2PseudoInst<(outs),
2998 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
3000 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
3002 // FIXME: Add a non-pc based case that can be predicated.
3003 def t2TBB_JT : t2PseudoInst<(outs),
3004 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3007 def t2TBH_JT : t2PseudoInst<(outs),
3008 (ins GPR:$index, i32imm:$jt, i32imm:$id),
3011 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3012 "tbb", "\t[$Rn, $Rm]", []> {
3015 let Inst{31-20} = 0b111010001101;
3016 let Inst{19-16} = Rn;
3017 let Inst{15-5} = 0b11110000000;
3018 let Inst{4} = 0; // B form
3022 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
3023 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
3026 let Inst{31-20} = 0b111010001101;
3027 let Inst{19-16} = Rn;
3028 let Inst{15-5} = 0b11110000000;
3029 let Inst{4} = 1; // H form
3032 } // isNotDuplicable, isIndirectBranch
3034 } // isBranch, isTerminator, isBarrier
3036 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
3037 // a two-value operand where a dag node expects two operands. :(
3038 let isBranch = 1, isTerminator = 1 in
3039 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
3041 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
3042 let Inst{31-27} = 0b11110;
3043 let Inst{15-14} = 0b10;
3047 let Inst{25-22} = p;
3050 let Inst{26} = target{20};
3051 let Inst{11} = target{19};
3052 let Inst{13} = target{18};
3053 let Inst{21-16} = target{17-12};
3054 let Inst{10-0} = target{11-1};
3056 let DecoderMethod = "DecodeThumb2BCCInstruction";
3059 // Tail calls. The Darwin version of thumb tail calls uses a t2 branch, so
3061 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3063 let Defs = [R0, R1, R2, R3, R9, R12, QQQQ0, QQQQ2, QQQQ3, PC],
3065 def tTAILJMPd: tPseudoExpand<(outs), (ins uncondbrtarget:$dst, variable_ops),
3067 (t2B uncondbrtarget:$dst)>,
3068 Requires<[IsThumb2, IsDarwin]>;
3072 let Defs = [ITSTATE] in
3073 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3074 AddrModeNone, 2, IIC_iALUx,
3075 "it$mask\t$cc", "", []> {
3076 // 16-bit instruction.
3077 let Inst{31-16} = 0x0000;
3078 let Inst{15-8} = 0b10111111;
3083 let Inst{3-0} = mask;
3085 let DecoderMethod = "DecodeIT";
3088 // Branch and Exchange Jazelle -- for disassembly only
3090 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func", []> {
3092 let Inst{31-27} = 0b11110;
3094 let Inst{25-20} = 0b111100;
3095 let Inst{19-16} = func;
3096 let Inst{15-0} = 0b1000111100000000;
3099 // Compare and branch on zero / non-zero
3100 let isBranch = 1, isTerminator = 1 in {
3101 def tCBZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3102 "cbz\t$Rn, $target", []>,
3103 T1Misc<{0,0,?,1,?,?,?}>,
3104 Requires<[IsThumb2]> {
3108 let Inst{9} = target{5};
3109 let Inst{7-3} = target{4-0};
3113 def tCBNZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
3114 "cbnz\t$Rn, $target", []>,
3115 T1Misc<{1,0,?,1,?,?,?}>,
3116 Requires<[IsThumb2]> {
3120 let Inst{9} = target{5};
3121 let Inst{7-3} = target{4-0};
3127 // Change Processor State is a system instruction -- for disassembly and
3129 // FIXME: Since the asm parser has currently no clean way to handle optional
3130 // operands, create 3 versions of the same instruction. Once there's a clean
3131 // framework to represent optional operands, change this behavior.
3132 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3133 !strconcat("cps", asm_op),
3134 [/* For disassembly only; pattern left blank */]> {
3140 let Inst{31-27} = 0b11110;
3142 let Inst{25-20} = 0b111010;
3143 let Inst{19-16} = 0b1111;
3144 let Inst{15-14} = 0b10;
3146 let Inst{10-9} = imod;
3148 let Inst{7-5} = iflags;
3149 let Inst{4-0} = mode;
3150 let DecoderMethod = "DecodeT2CPSInstruction";
3154 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3155 "$imod.w\t$iflags, $mode">;
3156 let mode = 0, M = 0 in
3157 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3158 "$imod.w\t$iflags">;
3159 let imod = 0, iflags = 0, M = 1 in
3160 def t2CPS1p : t2CPS<(ins i32imm:$mode), "\t$mode">;
3162 // A6.3.4 Branches and miscellaneous control
3163 // Table A6-14 Change Processor State, and hint instructions
3164 // Helper class for disassembly only.
3165 class T2I_hint<bits<8> op7_0, string opc, string asm>
3166 : T2I<(outs), (ins), NoItinerary, opc, asm,
3167 [/* For disassembly only; pattern left blank */]> {
3168 let Inst{31-20} = 0xf3a;
3169 let Inst{19-16} = 0b1111;
3170 let Inst{15-14} = 0b10;
3172 let Inst{10-8} = 0b000;
3173 let Inst{7-0} = op7_0;
3176 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3177 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3178 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3179 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3180 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3182 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
3184 let Inst{31-20} = 0b111100111010;
3185 let Inst{19-16} = 0b1111;
3186 let Inst{15-8} = 0b10000000;
3187 let Inst{7-4} = 0b1111;
3188 let Inst{3-0} = opt;
3191 // Secure Monitor Call is a system instruction -- for disassembly only
3192 // Option = Inst{19-16}
3193 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
3194 [/* For disassembly only; pattern left blank */]> {
3195 let Inst{31-27} = 0b11110;
3196 let Inst{26-20} = 0b1111111;
3197 let Inst{15-12} = 0b1000;
3200 let Inst{19-16} = opt;
3203 class T2SRS<bits<12> op31_20,
3204 dag oops, dag iops, InstrItinClass itin,
3205 string opc, string asm, list<dag> pattern>
3206 : T2I<oops, iops, itin, opc, asm, pattern> {
3207 let Inst{31-20} = op31_20{11-0};
3210 let Inst{4-0} = mode{4-0};
3213 // Store Return State is a system instruction -- for disassembly only
3214 def t2SRSDBW : T2SRS<0b111010000010,
3215 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3216 [/* For disassembly only; pattern left blank */]>;
3217 def t2SRSDB : T2SRS<0b111010000000,
3218 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3219 [/* For disassembly only; pattern left blank */]>;
3220 def t2SRSIAW : T2SRS<0b111010011010,
3221 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3222 [/* For disassembly only; pattern left blank */]>;
3223 def t2SRSIA : T2SRS<0b111010011000,
3224 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3225 [/* For disassembly only; pattern left blank */]>;
3227 // Return From Exception is a system instruction -- for disassembly only
3229 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3230 string opc, string asm, list<dag> pattern>
3231 : T2I<oops, iops, itin, opc, asm, pattern> {
3232 let Inst{31-20} = op31_20{11-0};
3235 let Inst{19-16} = Rn;
3236 let Inst{15-0} = 0xc000;
3239 def t2RFEDBW : T2RFE<0b111010000011,
3240 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3241 [/* For disassembly only; pattern left blank */]>;
3242 def t2RFEDB : T2RFE<0b111010000001,
3243 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3244 [/* For disassembly only; pattern left blank */]>;
3245 def t2RFEIAW : T2RFE<0b111010011011,
3246 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3247 [/* For disassembly only; pattern left blank */]>;
3248 def t2RFEIA : T2RFE<0b111010011001,
3249 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3250 [/* For disassembly only; pattern left blank */]>;
3252 //===----------------------------------------------------------------------===//
3253 // Non-Instruction Patterns
3256 // 32-bit immediate using movw + movt.
3257 // This is a single pseudo instruction to make it re-materializable.
3258 // FIXME: Remove this when we can do generalized remat.
3259 let isReMaterializable = 1, isMoveImm = 1 in
3260 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3261 [(set rGPR:$dst, (i32 imm:$src))]>,
3262 Requires<[IsThumb, HasV6T2]>;
3264 // Pseudo instruction that combines movw + movt + add pc (if pic).
3265 // It also makes it possible to rematerialize the instructions.
3266 // FIXME: Remove this when we can do generalized remat and when machine licm
3267 // can properly the instructions.
3268 let isReMaterializable = 1 in {
3269 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3271 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3272 Requires<[IsThumb2, UseMovt]>;
3274 def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3276 [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3277 Requires<[IsThumb2, UseMovt]>;
3280 // ConstantPool, GlobalAddress, and JumpTable
3281 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3282 Requires<[IsThumb2, DontUseMovt]>;
3283 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3284 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3285 Requires<[IsThumb2, UseMovt]>;
3287 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3288 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3290 // Pseudo instruction that combines ldr from constpool and add pc. This should
3291 // be expanded into two instructions late to allow if-conversion and
3293 let canFoldAsLoad = 1, isReMaterializable = 1 in
3294 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3296 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3298 Requires<[IsThumb2]>;
3299 //===----------------------------------------------------------------------===//
3300 // Coprocessor load/store -- for disassembly only
3302 class T2CI<dag oops, dag iops, string opc, string asm>
3303 : T2I<oops, iops, NoItinerary, opc, asm, []> {
3304 let Inst{27-25} = 0b110;
3307 multiclass T2LdStCop<bits<4> op31_28, bit load, string opc> {
3308 def _OFFSET : T2CI<(outs),
3309 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3310 opc, "\tp$cop, cr$CRd, $addr"> {
3311 let Inst{31-28} = op31_28;
3312 let Inst{24} = 1; // P = 1
3313 let Inst{21} = 0; // W = 0
3314 let Inst{22} = 0; // D = 0
3315 let Inst{20} = load;
3316 let DecoderMethod = "DecodeCopMemInstruction";
3319 def _PRE : T2CI<(outs),
3320 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3321 opc, "\tp$cop, cr$CRd, $addr!"> {
3322 let Inst{31-28} = op31_28;
3323 let Inst{24} = 1; // P = 1
3324 let Inst{21} = 1; // W = 1
3325 let Inst{22} = 0; // D = 0
3326 let Inst{20} = load;
3327 let DecoderMethod = "DecodeCopMemInstruction";
3330 def _POST : T2CI<(outs),
3331 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3332 opc, "\tp$cop, cr$CRd, $addr"> {
3333 let Inst{31-28} = op31_28;
3334 let Inst{24} = 0; // P = 0
3335 let Inst{21} = 1; // W = 1
3336 let Inst{22} = 0; // D = 0
3337 let Inst{20} = load;
3338 let DecoderMethod = "DecodeCopMemInstruction";
3341 def _OPTION : T2CI<(outs),
3342 (ins nohash_imm:$cop,nohash_imm:$CRd,GPR:$base, nohash_imm:$option),
3343 opc, "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
3344 let Inst{31-28} = op31_28;
3345 let Inst{24} = 0; // P = 0
3346 let Inst{23} = 1; // U = 1
3347 let Inst{21} = 0; // W = 0
3348 let Inst{22} = 0; // D = 0
3349 let Inst{20} = load;
3350 let DecoderMethod = "DecodeCopMemInstruction";
3353 def L_OFFSET : T2CI<(outs),
3354 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3355 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr"> {
3356 let Inst{31-28} = op31_28;
3357 let Inst{24} = 1; // P = 1
3358 let Inst{21} = 0; // W = 0
3359 let Inst{22} = 1; // D = 1
3360 let Inst{20} = load;
3361 let DecoderMethod = "DecodeCopMemInstruction";
3364 def L_PRE : T2CI<(outs),
3365 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3366 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr!"> {
3367 let Inst{31-28} = op31_28;
3368 let Inst{24} = 1; // P = 1
3369 let Inst{21} = 1; // W = 1
3370 let Inst{22} = 1; // D = 1
3371 let Inst{20} = load;
3372 let DecoderMethod = "DecodeCopMemInstruction";
3375 def L_POST : T2CI<(outs),
3376 (ins nohash_imm:$cop, nohash_imm:$CRd, addr_offset_none:$addr,
3377 postidx_imm8s4:$offset),
3378 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr, $offset"> {
3379 let Inst{31-28} = op31_28;
3380 let Inst{24} = 0; // P = 0
3381 let Inst{21} = 1; // W = 1
3382 let Inst{22} = 1; // D = 1
3383 let Inst{20} = load;
3384 let DecoderMethod = "DecodeCopMemInstruction";
3387 def L_OPTION : T2CI<(outs),
3388 (ins nohash_imm:$cop, nohash_imm:$CRd,GPR:$base,nohash_imm:$option),
3389 !strconcat(opc, "l"), "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
3390 let Inst{31-28} = op31_28;
3391 let Inst{24} = 0; // P = 0
3392 let Inst{23} = 1; // U = 1
3393 let Inst{21} = 0; // W = 0
3394 let Inst{22} = 1; // D = 1
3395 let Inst{20} = load;
3396 let DecoderMethod = "DecodeCopMemInstruction";
3400 defm t2LDC : T2LdStCop<0b1111, 1, "ldc">;
3401 defm t2STC : T2LdStCop<0b1111, 0, "stc">;
3404 //===----------------------------------------------------------------------===//
3405 // Move between special register and ARM core register -- for disassembly only
3408 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3409 dag oops, dag iops, InstrItinClass itin,
3410 string opc, string asm, list<dag> pattern>
3411 : T2I<oops, iops, itin, opc, asm, pattern> {
3412 let Inst{31-20} = op31_20{11-0};
3413 let Inst{15-14} = op15_14{1-0};
3415 let Inst{12} = op12{0};
3419 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3420 dag oops, dag iops, InstrItinClass itin,
3421 string opc, string asm, list<dag> pattern>
3422 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3424 let Inst{11-8} = Rd;
3425 let Inst{19-16} = 0b1111;
3428 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3429 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3430 [/* For disassembly only; pattern left blank */]>;
3431 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3432 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3433 [/* For disassembly only; pattern left blank */]>;
3435 // Move from ARM core register to Special Register
3437 // No need to have both system and application versions, the encodings are the
3438 // same and the assembly parser has no way to distinguish between them. The mask
3439 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3440 // the mask with the fields to be accessed in the special register.
3441 def t2MSR : T2SpecialReg<0b111100111000 /* op31-20 */, 0b10 /* op15-14 */,
3442 0 /* op12 */, (outs), (ins msr_mask:$mask, rGPR:$Rn),
3443 NoItinerary, "msr", "\t$mask, $Rn",
3444 [/* For disassembly only; pattern left blank */]> {
3447 let Inst{19-16} = Rn;
3448 let Inst{20} = mask{4}; // R Bit
3449 let Inst{11-8} = mask{3-0};
3452 //===----------------------------------------------------------------------===//
3453 // Move between coprocessor and ARM core register
3456 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
3458 : T2Cop<Op, oops, iops,
3459 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3461 let Inst{27-24} = 0b1110;
3462 let Inst{20} = direction;
3472 let Inst{15-12} = Rt;
3473 let Inst{11-8} = cop;
3474 let Inst{23-21} = opc1;
3475 let Inst{7-5} = opc2;
3476 let Inst{3-0} = CRm;
3477 let Inst{19-16} = CRn;
3480 class t2MovRRCopro<bits<4> Op, string opc, bit direction,
3481 list<dag> pattern = []>
3483 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3484 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
3485 let Inst{27-24} = 0b1100;
3486 let Inst{23-21} = 0b010;
3487 let Inst{20} = direction;
3495 let Inst{15-12} = Rt;
3496 let Inst{19-16} = Rt2;
3497 let Inst{11-8} = cop;
3498 let Inst{7-4} = opc1;
3499 let Inst{3-0} = CRm;
3502 /* from ARM core register to coprocessor */
3503 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
3505 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3506 c_imm:$CRm, imm0_7:$opc2),
3507 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3508 imm:$CRm, imm:$opc2)]>;
3509 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
3510 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3511 c_imm:$CRm, imm0_7:$opc2),
3512 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3513 imm:$CRm, imm:$opc2)]>;
3515 /* from coprocessor to ARM core register */
3516 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
3517 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3518 c_imm:$CRm, imm0_7:$opc2), []>;
3520 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
3521 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3522 c_imm:$CRm, imm0_7:$opc2), []>;
3524 def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3525 (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3527 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3528 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3531 /* from ARM core register to coprocessor */
3532 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0,
3533 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
3535 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0,
3536 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
3537 GPR:$Rt2, imm:$CRm)]>;
3538 /* from coprocessor to ARM core register */
3539 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>;
3541 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1>;
3543 //===----------------------------------------------------------------------===//
3544 // Other Coprocessor Instructions.
3547 def tCDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3548 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3549 "cdp\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3550 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3551 imm:$CRm, imm:$opc2)]> {
3552 let Inst{27-24} = 0b1110;
3561 let Inst{3-0} = CRm;
3563 let Inst{7-5} = opc2;
3564 let Inst{11-8} = cop;
3565 let Inst{15-12} = CRd;
3566 let Inst{19-16} = CRn;
3567 let Inst{23-20} = opc1;
3570 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3571 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3572 "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3573 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3574 imm:$CRm, imm:$opc2)]> {
3575 let Inst{27-24} = 0b1110;
3584 let Inst{3-0} = CRm;
3586 let Inst{7-5} = opc2;
3587 let Inst{11-8} = cop;
3588 let Inst{15-12} = CRd;
3589 let Inst{19-16} = CRn;
3590 let Inst{23-20} = opc1;
3595 //===----------------------------------------------------------------------===//
3596 // Non-Instruction Patterns
3599 // SXT/UXT with no rotate
3600 let AddedComplexity = 16 in {
3601 def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>,
3602 Requires<[IsThumb2]>;
3603 def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>,
3604 Requires<[IsThumb2]>;
3605 def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>,
3606 Requires<[HasT2ExtractPack, IsThumb2]>;
3607 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)),
3608 (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3609 Requires<[HasT2ExtractPack, IsThumb2]>;
3610 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)),
3611 (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3612 Requires<[HasT2ExtractPack, IsThumb2]>;
3615 def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>,
3616 Requires<[IsThumb2]>;
3617 def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>,
3618 Requires<[IsThumb2]>;
3619 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)),
3620 (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3621 Requires<[HasT2ExtractPack, IsThumb2]>;
3622 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)),
3623 (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3624 Requires<[HasT2ExtractPack, IsThumb2]>;
3626 // Atomic load/store patterns
3627 def : T2Pat<(atomic_load_8 t2addrmode_imm12:$addr),
3628 (t2LDRBi12 t2addrmode_imm12:$addr)>;
3629 def : T2Pat<(atomic_load_8 t2addrmode_negimm8:$addr),
3630 (t2LDRBi8 t2addrmode_negimm8:$addr)>;
3631 def : T2Pat<(atomic_load_8 t2addrmode_so_reg:$addr),
3632 (t2LDRBs t2addrmode_so_reg:$addr)>;
3633 def : T2Pat<(atomic_load_16 t2addrmode_imm12:$addr),
3634 (t2LDRHi12 t2addrmode_imm12:$addr)>;
3635 def : T2Pat<(atomic_load_16 t2addrmode_negimm8:$addr),
3636 (t2LDRHi8 t2addrmode_negimm8:$addr)>;
3637 def : T2Pat<(atomic_load_16 t2addrmode_so_reg:$addr),
3638 (t2LDRHs t2addrmode_so_reg:$addr)>;
3639 def : T2Pat<(atomic_load_32 t2addrmode_imm12:$addr),
3640 (t2LDRi12 t2addrmode_imm12:$addr)>;
3641 def : T2Pat<(atomic_load_32 t2addrmode_negimm8:$addr),
3642 (t2LDRi8 t2addrmode_negimm8:$addr)>;
3643 def : T2Pat<(atomic_load_32 t2addrmode_so_reg:$addr),
3644 (t2LDRs t2addrmode_so_reg:$addr)>;
3645 def : T2Pat<(atomic_store_8 t2addrmode_imm12:$addr, GPR:$val),
3646 (t2STRBi12 GPR:$val, t2addrmode_imm12:$addr)>;
3647 def : T2Pat<(atomic_store_8 t2addrmode_negimm8:$addr, GPR:$val),
3648 (t2STRBi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3649 def : T2Pat<(atomic_store_8 t2addrmode_so_reg:$addr, GPR:$val),
3650 (t2STRBs GPR:$val, t2addrmode_so_reg:$addr)>;
3651 def : T2Pat<(atomic_store_16 t2addrmode_imm12:$addr, GPR:$val),
3652 (t2STRHi12 GPR:$val, t2addrmode_imm12:$addr)>;
3653 def : T2Pat<(atomic_store_16 t2addrmode_negimm8:$addr, GPR:$val),
3654 (t2STRHi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3655 def : T2Pat<(atomic_store_16 t2addrmode_so_reg:$addr, GPR:$val),
3656 (t2STRHs GPR:$val, t2addrmode_so_reg:$addr)>;
3657 def : T2Pat<(atomic_store_32 t2addrmode_imm12:$addr, GPR:$val),
3658 (t2STRi12 GPR:$val, t2addrmode_imm12:$addr)>;
3659 def : T2Pat<(atomic_store_32 t2addrmode_negimm8:$addr, GPR:$val),
3660 (t2STRi8 GPR:$val, t2addrmode_negimm8:$addr)>;
3661 def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val),
3662 (t2STRs GPR:$val, t2addrmode_so_reg:$addr)>;
3665 //===----------------------------------------------------------------------===//
3666 // Assembler aliases
3669 // Aliases for ADC without the ".w" optional width specifier.
3670 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm",
3671 (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3672 def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm",
3673 (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3674 pred:$p, cc_out:$s)>;
3676 // Aliases for SBC without the ".w" optional width specifier.
3677 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm",
3678 (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3679 def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
3680 (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
3681 pred:$p, cc_out:$s)>;
3683 // Aliases for ADD without the ".w" optional width specifier.
3684 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
3685 (t2ADDri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
3686 def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
3687 (t2ADDri12 rGPR:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
3688 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
3689 (t2ADDrr rGPR:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
3690 def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
3691 (t2ADDrs rGPR:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
3692 pred:$p, cc_out:$s)>;
3694 // Alias for compares without the ".w" optional width specifier.
3695 def : t2InstAlias<"cmn${p} $Rn, $Rm",
3696 (t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3697 def : t2InstAlias<"teq${p} $Rn, $Rm",
3698 (t2TEQrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3699 def : t2InstAlias<"tst${p} $Rn, $Rm",
3700 (t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
3703 def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb2, HasDB]>;
3704 def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb2, HasDB]>;
3705 def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb2, HasDB]>;
3707 // Alias for LDR, LDRB, LDRH without the ".w" optional width specifier.
3708 def : t2InstAlias<"ldr${p} $Rt, $addr",
3709 (t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3710 def : t2InstAlias<"ldrb${p} $Rt, $addr",
3711 (t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3712 def : t2InstAlias<"ldrh${p} $Rt, $addr",
3713 (t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
3714 def : t2InstAlias<"ldr${p} $Rt, $addr",
3715 (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3716 def : t2InstAlias<"ldrb${p} $Rt, $addr",
3717 (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
3718 def : t2InstAlias<"ldrh${p} $Rt, $addr",
3719 (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;