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 : Operand<i32> {
16 let PrintMethod = "printMandatoryPredicateOperand";
19 // IT block condition mask
20 def it_mask : Operand<i32> {
21 let PrintMethod = "printThumbITMask";
24 // Table branch address
25 def tb_addrmode : Operand<i32> {
26 let PrintMethod = "printTBAddrMode";
29 // Shifted operands. No register controlled shifts for Thumb2.
30 // Note: We do not support rrx shifted operands yet.
31 def t2_so_reg : Operand<i32>, // reg imm
32 ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
34 let PrintMethod = "printT2SOOperand";
35 let MIOperandInfo = (ops GPR, i32imm);
38 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
39 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
40 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
43 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
44 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
45 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), MVT::i32);
48 // t2_so_imm - Match a 32-bit immediate operand, which is an
49 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
50 // immediate splatted into multiple bytes of the word. t2_so_imm values are
51 // represented in the imm field in the same 12-bit form that they are encoded
52 // into t2_so_imm instructions: the 8-bit immediate is the least significant
53 // bits [bits 0-7], the 4-bit shift/splat amount is the next 4 bits [bits 8-11].
54 def t2_so_imm : Operand<i32>,
56 return ARM_AM::getT2SOImmVal((uint32_t)N->getZExtValue()) != -1;
59 // t2_so_imm_not - Match an immediate that is a complement
61 def t2_so_imm_not : Operand<i32>,
63 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
64 }], t2_so_imm_not_XFORM>;
66 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
67 def t2_so_imm_neg : Operand<i32>,
69 return ARM_AM::getT2SOImmVal(-((int)N->getZExtValue())) != -1;
70 }], t2_so_imm_neg_XFORM>;
72 // Break t2_so_imm's up into two pieces. This handles immediates with up to 16
73 // bits set in them. This uses t2_so_imm2part to match and t2_so_imm2part_[12]
74 // to get the first/second pieces.
75 def t2_so_imm2part : Operand<i32>,
77 return ARM_AM::isT2SOImmTwoPartVal((unsigned)N->getZExtValue());
81 def t2_so_imm2part_1 : SDNodeXForm<imm, [{
82 unsigned V = ARM_AM::getT2SOImmTwoPartFirst((unsigned)N->getZExtValue());
83 return CurDAG->getTargetConstant(V, MVT::i32);
86 def t2_so_imm2part_2 : SDNodeXForm<imm, [{
87 unsigned V = ARM_AM::getT2SOImmTwoPartSecond((unsigned)N->getZExtValue());
88 return CurDAG->getTargetConstant(V, MVT::i32);
91 def t2_so_neg_imm2part : Operand<i32>, PatLeaf<(imm), [{
92 return ARM_AM::isT2SOImmTwoPartVal(-(int)N->getZExtValue());
96 def t2_so_neg_imm2part_1 : SDNodeXForm<imm, [{
97 unsigned V = ARM_AM::getT2SOImmTwoPartFirst(-(int)N->getZExtValue());
98 return CurDAG->getTargetConstant(V, MVT::i32);
101 def t2_so_neg_imm2part_2 : SDNodeXForm<imm, [{
102 unsigned V = ARM_AM::getT2SOImmTwoPartSecond(-(int)N->getZExtValue());
103 return CurDAG->getTargetConstant(V, MVT::i32);
106 /// imm1_31 predicate - True if the 32-bit immediate is in the range [1,31].
107 def imm1_31 : PatLeaf<(i32 imm), [{
108 return (int32_t)N->getZExtValue() >= 1 && (int32_t)N->getZExtValue() < 32;
111 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
112 def imm0_4095 : Operand<i32>,
113 PatLeaf<(i32 imm), [{
114 return (uint32_t)N->getZExtValue() < 4096;
117 def imm0_4095_neg : PatLeaf<(i32 imm), [{
118 return (uint32_t)(-N->getZExtValue()) < 4096;
121 def imm0_255_neg : PatLeaf<(i32 imm), [{
122 return (uint32_t)(-N->getZExtValue()) < 255;
125 // Define Thumb2 specific addressing modes.
127 // t2addrmode_imm12 := reg + imm12
128 def t2addrmode_imm12 : Operand<i32>,
129 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
130 let PrintMethod = "printT2AddrModeImm12Operand";
131 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
134 // t2addrmode_imm8 := reg +/- imm8
135 def t2addrmode_imm8 : Operand<i32>,
136 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
137 let PrintMethod = "printT2AddrModeImm8Operand";
138 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
141 def t2am_imm8_offset : Operand<i32>,
142 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset", []>{
143 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
146 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
147 def t2addrmode_imm8s4 : Operand<i32>,
148 ComplexPattern<i32, 2, "SelectT2AddrModeImm8s4", []> {
149 let PrintMethod = "printT2AddrModeImm8s4Operand";
150 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
153 // t2addrmode_so_reg := reg + (reg << imm2)
154 def t2addrmode_so_reg : Operand<i32>,
155 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
156 let PrintMethod = "printT2AddrModeSoRegOperand";
157 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
161 //===----------------------------------------------------------------------===//
162 // Multiclass helpers...
165 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
166 /// unary operation that produces a value. These are predicable and can be
167 /// changed to modify CPSR.
168 multiclass T2I_un_irs<bits<4> opcod, string opc, PatFrag opnode,
169 bit Cheap = 0, bit ReMat = 0> {
171 def i : T2sI<(outs GPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
173 [(set GPR:$dst, (opnode t2_so_imm:$src))]> {
174 let isAsCheapAsAMove = Cheap;
175 let isReMaterializable = ReMat;
176 let Inst{31-27} = 0b11110;
178 let Inst{24-21} = opcod;
179 let Inst{20} = ?; // The S bit.
180 let Inst{19-16} = 0b1111; // Rn
184 def r : T2I<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
185 opc, ".w\t$dst, $src",
186 [(set GPR:$dst, (opnode GPR:$src))]> {
187 let Inst{31-27} = 0b11101;
188 let Inst{26-25} = 0b01;
189 let Inst{24-21} = opcod;
190 let Inst{20} = ?; // The S bit.
191 let Inst{19-16} = 0b1111; // Rn
192 let Inst{14-12} = 0b000; // imm3
193 let Inst{7-6} = 0b00; // imm2
194 let Inst{5-4} = 0b00; // type
197 def s : T2I<(outs GPR:$dst), (ins t2_so_reg:$src), IIC_iMOVsi,
198 opc, ".w\t$dst, $src",
199 [(set GPR:$dst, (opnode t2_so_reg:$src))]> {
200 let Inst{31-27} = 0b11101;
201 let Inst{26-25} = 0b01;
202 let Inst{24-21} = opcod;
203 let Inst{20} = ?; // The S bit.
204 let Inst{19-16} = 0b1111; // Rn
208 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
209 // binary operation that produces a value. These are predicable and can be
210 /// changed to modify CPSR.
211 multiclass T2I_bin_irs<bits<4> opcod, string opc, PatFrag opnode,
212 bit Commutable = 0, string wide =""> {
214 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
215 opc, "\t$dst, $lhs, $rhs",
216 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
217 let Inst{31-27} = 0b11110;
219 let Inst{24-21} = opcod;
220 let Inst{20} = ?; // The S bit.
224 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
225 opc, !strconcat(wide, "\t$dst, $lhs, $rhs"),
226 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
227 let isCommutable = Commutable;
228 let Inst{31-27} = 0b11101;
229 let Inst{26-25} = 0b01;
230 let Inst{24-21} = opcod;
231 let Inst{20} = ?; // The S bit.
232 let Inst{14-12} = 0b000; // imm3
233 let Inst{7-6} = 0b00; // imm2
234 let Inst{5-4} = 0b00; // type
237 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
238 opc, !strconcat(wide, "\t$dst, $lhs, $rhs"),
239 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
240 let Inst{31-27} = 0b11101;
241 let Inst{26-25} = 0b01;
242 let Inst{24-21} = opcod;
243 let Inst{20} = ?; // The S bit.
247 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
248 // the ".w" prefix to indicate that they are wide.
249 multiclass T2I_bin_w_irs<bits<4> opcod, string opc, PatFrag opnode,
250 bit Commutable = 0> :
251 T2I_bin_irs<opcod, opc, opnode, Commutable, ".w">;
253 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
254 /// reversed. It doesn't define the 'rr' form since it's handled by its
255 /// T2I_bin_irs counterpart.
256 multiclass T2I_rbin_is<bits<4> opcod, string opc, PatFrag opnode> {
258 def ri : T2I<(outs GPR:$dst), (ins GPR:$rhs, t2_so_imm:$lhs), IIC_iALUi,
259 opc, ".w\t$dst, $rhs, $lhs",
260 [(set GPR:$dst, (opnode t2_so_imm:$lhs, GPR:$rhs))]> {
261 let Inst{31-27} = 0b11110;
263 let Inst{24-21} = opcod;
264 let Inst{20} = 0; // The S bit.
268 def rs : T2I<(outs GPR:$dst), (ins GPR:$rhs, t2_so_reg:$lhs), IIC_iALUsi,
269 opc, "\t$dst, $rhs, $lhs",
270 [(set GPR:$dst, (opnode t2_so_reg:$lhs, GPR:$rhs))]> {
271 let Inst{31-27} = 0b11101;
272 let Inst{26-25} = 0b01;
273 let Inst{24-21} = opcod;
274 let Inst{20} = 0; // The S bit.
278 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
279 /// instruction modifies the CPSR register.
280 let Defs = [CPSR] in {
281 multiclass T2I_bin_s_irs<bits<4> opcod, string opc, PatFrag opnode,
282 bit Commutable = 0> {
284 def ri : T2I<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
285 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
286 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
287 let Inst{31-27} = 0b11110;
289 let Inst{24-21} = opcod;
290 let Inst{20} = 1; // The S bit.
294 def rr : T2I<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
295 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
296 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
297 let isCommutable = Commutable;
298 let Inst{31-27} = 0b11101;
299 let Inst{26-25} = 0b01;
300 let Inst{24-21} = opcod;
301 let Inst{20} = 1; // The S bit.
302 let Inst{14-12} = 0b000; // imm3
303 let Inst{7-6} = 0b00; // imm2
304 let Inst{5-4} = 0b00; // type
307 def rs : T2I<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
308 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
309 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
310 let Inst{31-27} = 0b11101;
311 let Inst{26-25} = 0b01;
312 let Inst{24-21} = opcod;
313 let Inst{20} = 1; // The S bit.
318 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
319 /// patterns for a binary operation that produces a value.
320 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
321 bit Commutable = 0> {
323 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
324 opc, ".w\t$dst, $lhs, $rhs",
325 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
326 let Inst{31-27} = 0b11110;
329 let Inst{23-21} = op23_21;
330 let Inst{20} = 0; // The S bit.
334 def ri12 : T2sI<(outs GPR:$dst), (ins GPR:$lhs, imm0_4095:$rhs), IIC_iALUi,
335 !strconcat(opc, "w"), "\t$dst, $lhs, $rhs",
336 [(set GPR:$dst, (opnode GPR:$lhs, imm0_4095:$rhs))]> {
337 let Inst{31-27} = 0b11110;
340 let Inst{23-21} = op23_21;
341 let Inst{20} = 0; // The S bit.
345 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
346 opc, ".w\t$dst, $lhs, $rhs",
347 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
348 let isCommutable = Commutable;
349 let Inst{31-27} = 0b11101;
350 let Inst{26-25} = 0b01;
352 let Inst{23-21} = op23_21;
353 let Inst{20} = 0; // The S bit.
354 let Inst{14-12} = 0b000; // imm3
355 let Inst{7-6} = 0b00; // imm2
356 let Inst{5-4} = 0b00; // type
359 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
360 opc, ".w\t$dst, $lhs, $rhs",
361 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
362 let Inst{31-27} = 0b11101;
363 let Inst{26-25} = 0b01;
365 let Inst{23-21} = op23_21;
366 let Inst{20} = 0; // The S bit.
370 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
371 /// for a binary operation that produces a value and use the carry
372 /// bit. It's not predicable.
373 let Uses = [CPSR] in {
374 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
375 bit Commutable = 0> {
377 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
378 opc, "\t$dst, $lhs, $rhs",
379 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>,
380 Requires<[IsThumb2]> {
381 let Inst{31-27} = 0b11110;
383 let Inst{24-21} = opcod;
384 let Inst{20} = 0; // The S bit.
388 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
389 opc, ".w\t$dst, $lhs, $rhs",
390 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>,
391 Requires<[IsThumb2]> {
392 let isCommutable = Commutable;
393 let Inst{31-27} = 0b11101;
394 let Inst{26-25} = 0b01;
395 let Inst{24-21} = opcod;
396 let Inst{20} = 0; // The S bit.
397 let Inst{14-12} = 0b000; // imm3
398 let Inst{7-6} = 0b00; // imm2
399 let Inst{5-4} = 0b00; // type
402 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
403 opc, ".w\t$dst, $lhs, $rhs",
404 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>,
405 Requires<[IsThumb2]> {
406 let Inst{31-27} = 0b11101;
407 let Inst{26-25} = 0b01;
408 let Inst{24-21} = opcod;
409 let Inst{20} = 0; // The S bit.
413 // Carry setting variants
414 let Defs = [CPSR] in {
415 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
416 bit Commutable = 0> {
418 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
419 opc, "\t$dst, $lhs, $rhs",
420 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>,
421 Requires<[IsThumb2]> {
422 let Inst{31-27} = 0b11110;
424 let Inst{24-21} = opcod;
425 let Inst{20} = 1; // The S bit.
429 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
430 opc, ".w\t$dst, $lhs, $rhs",
431 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>,
432 Requires<[IsThumb2]> {
433 let isCommutable = Commutable;
434 let Inst{31-27} = 0b11101;
435 let Inst{26-25} = 0b01;
436 let Inst{24-21} = opcod;
437 let Inst{20} = 1; // The S bit.
438 let Inst{14-12} = 0b000; // imm3
439 let Inst{7-6} = 0b00; // imm2
440 let Inst{5-4} = 0b00; // type
443 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
444 opc, ".w\t$dst, $lhs, $rhs",
445 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>,
446 Requires<[IsThumb2]> {
447 let Inst{31-27} = 0b11101;
448 let Inst{26-25} = 0b01;
449 let Inst{24-21} = opcod;
450 let Inst{20} = 1; // The S bit.
456 /// T2I_rbin_s_is - Same as T2I_rbin_is except sets 's' bit.
457 let Defs = [CPSR] in {
458 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
460 def ri : T2XI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_imm:$lhs, cc_out:$s),
462 !strconcat(opc, "${s}.w\t$dst, $rhs, $lhs"),
463 [(set GPR:$dst, (opnode t2_so_imm:$lhs, GPR:$rhs))]> {
464 let Inst{31-27} = 0b11110;
466 let Inst{24-21} = opcod;
467 let Inst{20} = 1; // The S bit.
471 def rs : T2XI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_reg:$lhs, cc_out:$s),
473 !strconcat(opc, "${s}\t$dst, $rhs, $lhs"),
474 [(set GPR:$dst, (opnode t2_so_reg:$lhs, GPR:$rhs))]> {
475 let Inst{31-27} = 0b11101;
476 let Inst{26-25} = 0b01;
477 let Inst{24-21} = opcod;
478 let Inst{20} = 1; // The S bit.
483 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
484 // rotate operation that produces a value.
485 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
487 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
488 opc, ".w\t$dst, $lhs, $rhs",
489 [(set GPR:$dst, (opnode GPR:$lhs, imm1_31:$rhs))]> {
490 let Inst{31-27} = 0b11101;
491 let Inst{26-21} = 0b010010;
492 let Inst{19-16} = 0b1111; // Rn
493 let Inst{5-4} = opcod;
496 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iMOVsr,
497 opc, ".w\t$dst, $lhs, $rhs",
498 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
499 let Inst{31-27} = 0b11111;
500 let Inst{26-23} = 0b0100;
501 let Inst{22-21} = opcod;
502 let Inst{15-12} = 0b1111;
503 let Inst{7-4} = 0b0000;
507 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
508 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
509 /// a explicit result, only implicitly set CPSR.
510 let Defs = [CPSR] in {
511 multiclass T2I_cmp_irs<bits<4> opcod, string opc, PatFrag opnode> {
513 def ri : T2I<(outs), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iCMPi,
514 opc, ".w\t$lhs, $rhs",
515 [(opnode GPR:$lhs, t2_so_imm:$rhs)]> {
516 let Inst{31-27} = 0b11110;
518 let Inst{24-21} = opcod;
519 let Inst{20} = 1; // The S bit.
521 let Inst{11-8} = 0b1111; // Rd
524 def rr : T2I<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
525 opc, ".w\t$lhs, $rhs",
526 [(opnode GPR:$lhs, GPR:$rhs)]> {
527 let Inst{31-27} = 0b11101;
528 let Inst{26-25} = 0b01;
529 let Inst{24-21} = opcod;
530 let Inst{20} = 1; // The S bit.
531 let Inst{14-12} = 0b000; // imm3
532 let Inst{11-8} = 0b1111; // Rd
533 let Inst{7-6} = 0b00; // imm2
534 let Inst{5-4} = 0b00; // type
537 def rs : T2I<(outs), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iCMPsi,
538 opc, ".w\t$lhs, $rhs",
539 [(opnode GPR:$lhs, t2_so_reg:$rhs)]> {
540 let Inst{31-27} = 0b11101;
541 let Inst{26-25} = 0b01;
542 let Inst{24-21} = opcod;
543 let Inst{20} = 1; // The S bit.
544 let Inst{11-8} = 0b1111; // Rd
549 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
550 multiclass T2I_ld<bit signed, bits<2> opcod, string opc, PatFrag opnode> {
551 def i12 : T2Ii12<(outs GPR:$dst), (ins t2addrmode_imm12:$addr), IIC_iLoadi,
552 opc, ".w\t$dst, $addr",
553 [(set GPR:$dst, (opnode t2addrmode_imm12:$addr))]> {
554 let Inst{31-27} = 0b11111;
555 let Inst{26-25} = 0b00;
556 let Inst{24} = signed;
558 let Inst{22-21} = opcod;
559 let Inst{20} = 1; // load
561 def i8 : T2Ii8 <(outs GPR:$dst), (ins t2addrmode_imm8:$addr), IIC_iLoadi,
562 opc, "\t$dst, $addr",
563 [(set GPR:$dst, (opnode t2addrmode_imm8:$addr))]> {
564 let Inst{31-27} = 0b11111;
565 let Inst{26-25} = 0b00;
566 let Inst{24} = signed;
568 let Inst{22-21} = opcod;
569 let Inst{20} = 1; // load
571 // Offset: index==TRUE, wback==FALSE
572 let Inst{10} = 1; // The P bit.
573 let Inst{8} = 0; // The W bit.
575 def s : T2Iso <(outs GPR:$dst), (ins t2addrmode_so_reg:$addr), IIC_iLoadr,
576 opc, ".w\t$dst, $addr",
577 [(set GPR:$dst, (opnode t2addrmode_so_reg:$addr))]> {
578 let Inst{31-27} = 0b11111;
579 let Inst{26-25} = 0b00;
580 let Inst{24} = signed;
582 let Inst{22-21} = opcod;
583 let Inst{20} = 1; // load
584 let Inst{11-6} = 0b000000;
586 def pci : T2Ipc <(outs GPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
587 opc, ".w\t$dst, $addr",
588 [(set GPR:$dst, (opnode (ARMWrapper tconstpool:$addr)))]> {
589 let isReMaterializable = 1;
590 let Inst{31-27} = 0b11111;
591 let Inst{26-25} = 0b00;
592 let Inst{24} = signed;
593 let Inst{23} = ?; // add = (U == '1')
594 let Inst{22-21} = opcod;
595 let Inst{20} = 1; // load
596 let Inst{19-16} = 0b1111; // Rn
600 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
601 multiclass T2I_st<bits<2> opcod, string opc, PatFrag opnode> {
602 def i12 : T2Ii12<(outs), (ins GPR:$src, t2addrmode_imm12:$addr), IIC_iStorei,
603 opc, ".w\t$src, $addr",
604 [(opnode GPR:$src, t2addrmode_imm12:$addr)]> {
605 let Inst{31-27} = 0b11111;
606 let Inst{26-23} = 0b0001;
607 let Inst{22-21} = opcod;
608 let Inst{20} = 0; // !load
610 def i8 : T2Ii8 <(outs), (ins GPR:$src, t2addrmode_imm8:$addr), IIC_iStorei,
611 opc, "\t$src, $addr",
612 [(opnode GPR:$src, t2addrmode_imm8:$addr)]> {
613 let Inst{31-27} = 0b11111;
614 let Inst{26-23} = 0b0000;
615 let Inst{22-21} = opcod;
616 let Inst{20} = 0; // !load
618 // Offset: index==TRUE, wback==FALSE
619 let Inst{10} = 1; // The P bit.
620 let Inst{8} = 0; // The W bit.
622 def s : T2Iso <(outs), (ins GPR:$src, t2addrmode_so_reg:$addr), IIC_iStorer,
623 opc, ".w\t$src, $addr",
624 [(opnode GPR:$src, t2addrmode_so_reg:$addr)]> {
625 let Inst{31-27} = 0b11111;
626 let Inst{26-23} = 0b0000;
627 let Inst{22-21} = opcod;
628 let Inst{20} = 0; // !load
629 let Inst{11-6} = 0b000000;
633 /// T2I_unary_rrot - A unary operation with two forms: one whose operand is a
634 /// register and one whose operand is a register rotated by 8/16/24.
635 multiclass T2I_unary_rrot<bits<3> opcod, string opc, PatFrag opnode> {
636 def r : T2I<(outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
637 opc, ".w\t$dst, $src",
638 [(set GPR:$dst, (opnode GPR:$src))]> {
639 let Inst{31-27} = 0b11111;
640 let Inst{26-23} = 0b0100;
641 let Inst{22-20} = opcod;
642 let Inst{19-16} = 0b1111; // Rn
643 let Inst{15-12} = 0b1111;
645 let Inst{5-4} = 0b00; // rotate
647 def r_rot : T2I<(outs GPR:$dst), (ins GPR:$src, i32imm:$rot), IIC_iUNAsi,
648 opc, ".w\t$dst, $src, ror $rot",
649 [(set GPR:$dst, (opnode (rotr GPR:$src, rot_imm:$rot)))]> {
650 let Inst{31-27} = 0b11111;
651 let Inst{26-23} = 0b0100;
652 let Inst{22-20} = opcod;
653 let Inst{19-16} = 0b1111; // Rn
654 let Inst{15-12} = 0b1111;
656 let Inst{5-4} = {?,?}; // rotate
660 // DO variant - disassembly only, no pattern
662 multiclass T2I_unary_rrot_DO<bits<3> opcod, string opc> {
663 def r : T2I<(outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
664 opc, "\t$dst, $src", []> {
665 let Inst{31-27} = 0b11111;
666 let Inst{26-23} = 0b0100;
667 let Inst{22-20} = opcod;
668 let Inst{19-16} = 0b1111; // Rn
669 let Inst{15-12} = 0b1111;
671 let Inst{5-4} = 0b00; // rotate
673 def r_rot : T2I<(outs GPR:$dst), (ins GPR:$src, i32imm:$rot), IIC_iUNAsi,
674 opc, "\t$dst, $src, ror $rot", []> {
675 let Inst{31-27} = 0b11111;
676 let Inst{26-23} = 0b0100;
677 let Inst{22-20} = opcod;
678 let Inst{19-16} = 0b1111; // Rn
679 let Inst{15-12} = 0b1111;
681 let Inst{5-4} = {?,?}; // rotate
685 /// T2I_bin_rrot - A binary operation with two forms: one whose operand is a
686 /// register and one whose operand is a register rotated by 8/16/24.
687 multiclass T2I_bin_rrot<bits<3> opcod, string opc, PatFrag opnode> {
688 def rr : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS), IIC_iALUr,
689 opc, "\t$dst, $LHS, $RHS",
690 [(set GPR:$dst, (opnode GPR:$LHS, GPR:$RHS))]> {
691 let Inst{31-27} = 0b11111;
692 let Inst{26-23} = 0b0100;
693 let Inst{22-20} = opcod;
694 let Inst{15-12} = 0b1111;
696 let Inst{5-4} = 0b00; // rotate
698 def rr_rot : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS, i32imm:$rot),
699 IIC_iALUsr, opc, "\t$dst, $LHS, $RHS, ror $rot",
700 [(set GPR:$dst, (opnode GPR:$LHS,
701 (rotr GPR:$RHS, rot_imm:$rot)))]> {
702 let Inst{31-27} = 0b11111;
703 let Inst{26-23} = 0b0100;
704 let Inst{22-20} = opcod;
705 let Inst{15-12} = 0b1111;
707 let Inst{5-4} = {?,?}; // rotate
711 // DO variant - disassembly only, no pattern
713 multiclass T2I_bin_rrot_DO<bits<3> opcod, string opc> {
714 def rr : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS), IIC_iALUr,
715 opc, "\t$dst, $LHS, $RHS", []> {
716 let Inst{31-27} = 0b11111;
717 let Inst{26-23} = 0b0100;
718 let Inst{22-20} = opcod;
719 let Inst{15-12} = 0b1111;
721 let Inst{5-4} = 0b00; // rotate
723 def rr_rot : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS, i32imm:$rot),
724 IIC_iALUsr, opc, "\t$dst, $LHS, $RHS, ror $rot", []> {
725 let Inst{31-27} = 0b11111;
726 let Inst{26-23} = 0b0100;
727 let Inst{22-20} = opcod;
728 let Inst{15-12} = 0b1111;
730 let Inst{5-4} = {?,?}; // rotate
734 //===----------------------------------------------------------------------===//
736 //===----------------------------------------------------------------------===//
738 //===----------------------------------------------------------------------===//
739 // Miscellaneous Instructions.
742 // LEApcrel - Load a pc-relative address into a register without offending the
744 def t2LEApcrel : T2XI<(outs GPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
745 "adr$p.w\t$dst, #$label", []> {
746 let Inst{31-27} = 0b11110;
747 let Inst{25-24} = 0b10;
748 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
751 let Inst{19-16} = 0b1111; // Rn
754 def t2LEApcrelJT : T2XI<(outs GPR:$dst),
755 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
756 "adr$p.w\t$dst, #${label}_${id}", []> {
757 let Inst{31-27} = 0b11110;
758 let Inst{25-24} = 0b10;
759 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
762 let Inst{19-16} = 0b1111; // Rn
766 // ADD r, sp, {so_imm|i12}
767 def t2ADDrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
768 IIC_iALUi, "add", ".w\t$dst, $sp, $imm", []> {
769 let Inst{31-27} = 0b11110;
771 let Inst{24-21} = 0b1000;
772 let Inst{20} = ?; // The S bit.
773 let Inst{19-16} = 0b1101; // Rn = sp
776 def t2ADDrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
777 IIC_iALUi, "addw", "\t$dst, $sp, $imm", []> {
778 let Inst{31-27} = 0b11110;
780 let Inst{24-21} = 0b0000;
781 let Inst{20} = 0; // The S bit.
782 let Inst{19-16} = 0b1101; // Rn = sp
787 def t2ADDrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
788 IIC_iALUsi, "add", ".w\t$dst, $sp, $rhs", []> {
789 let Inst{31-27} = 0b11101;
790 let Inst{26-25} = 0b01;
791 let Inst{24-21} = 0b1000;
792 let Inst{20} = ?; // The S bit.
793 let Inst{19-16} = 0b1101; // Rn = sp
797 // SUB r, sp, {so_imm|i12}
798 def t2SUBrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
799 IIC_iALUi, "sub", ".w\t$dst, $sp, $imm", []> {
800 let Inst{31-27} = 0b11110;
802 let Inst{24-21} = 0b1101;
803 let Inst{20} = ?; // The S bit.
804 let Inst{19-16} = 0b1101; // Rn = sp
807 def t2SUBrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
808 IIC_iALUi, "subw", "\t$dst, $sp, $imm", []> {
809 let Inst{31-27} = 0b11110;
811 let Inst{24-21} = 0b0101;
812 let Inst{20} = 0; // The S bit.
813 let Inst{19-16} = 0b1101; // Rn = sp
818 def t2SUBrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
820 "sub", "\t$dst, $sp, $rhs", []> {
821 let Inst{31-27} = 0b11101;
822 let Inst{26-25} = 0b01;
823 let Inst{24-21} = 0b1101;
824 let Inst{20} = ?; // The S bit.
825 let Inst{19-16} = 0b1101; // Rn = sp
829 // Signed and unsigned division, for disassembly only
830 def t2SDIV : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALUi,
831 "sdiv", "\t$dst, $a, $b", []> {
832 let Inst{31-27} = 0b11111;
833 let Inst{26-21} = 0b011100;
835 let Inst{15-12} = 0b1111;
836 let Inst{7-4} = 0b1111;
839 def t2UDIV : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALUi,
840 "udiv", "\t$dst, $a, $b", []> {
841 let Inst{31-27} = 0b11111;
842 let Inst{26-21} = 0b011101;
844 let Inst{15-12} = 0b1111;
845 let Inst{7-4} = 0b1111;
848 // Pseudo instruction that will expand into a t2SUBrSPi + a copy.
849 let usesCustomInserter = 1 in { // Expanded after instruction selection.
850 def t2SUBrSPi_ : PseudoInst<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
851 NoItinerary, "@ sub.w\t$dst, $sp, $imm", []>;
852 def t2SUBrSPi12_ : PseudoInst<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
853 NoItinerary, "@ subw\t$dst, $sp, $imm", []>;
854 def t2SUBrSPs_ : PseudoInst<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
855 NoItinerary, "@ sub\t$dst, $sp, $rhs", []>;
856 } // usesCustomInserter
859 //===----------------------------------------------------------------------===//
860 // Load / store Instructions.
864 let canFoldAsLoad = 1, isReMaterializable = 1 in
865 defm t2LDR : T2I_ld<0, 0b10, "ldr", UnOpFrag<(load node:$Src)>>;
867 // Loads with zero extension
868 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", UnOpFrag<(zextloadi16 node:$Src)>>;
869 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", UnOpFrag<(zextloadi8 node:$Src)>>;
871 // Loads with sign extension
872 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", UnOpFrag<(sextloadi16 node:$Src)>>;
873 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", UnOpFrag<(sextloadi8 node:$Src)>>;
875 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in {
877 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs GPR:$dst1, GPR:$dst2),
878 (ins t2addrmode_imm8s4:$addr),
879 IIC_iLoadi, "ldrd", "\t$dst1, $addr", []>;
880 def t2LDRDpci : T2Ii8s4<?, ?, 1, (outs GPR:$dst1, GPR:$dst2),
881 (ins i32imm:$addr), IIC_iLoadi,
882 "ldrd", "\t$dst1, $addr", []> {
883 let Inst{19-16} = 0b1111; // Rn
887 // zextload i1 -> zextload i8
888 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
889 (t2LDRBi12 t2addrmode_imm12:$addr)>;
890 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
891 (t2LDRBi8 t2addrmode_imm8:$addr)>;
892 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
893 (t2LDRBs t2addrmode_so_reg:$addr)>;
894 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
895 (t2LDRBpci tconstpool:$addr)>;
897 // extload -> zextload
898 // FIXME: Reduce the number of patterns by legalizing extload to zextload
900 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
901 (t2LDRBi12 t2addrmode_imm12:$addr)>;
902 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
903 (t2LDRBi8 t2addrmode_imm8:$addr)>;
904 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
905 (t2LDRBs t2addrmode_so_reg:$addr)>;
906 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
907 (t2LDRBpci tconstpool:$addr)>;
909 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
910 (t2LDRBi12 t2addrmode_imm12:$addr)>;
911 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
912 (t2LDRBi8 t2addrmode_imm8:$addr)>;
913 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
914 (t2LDRBs t2addrmode_so_reg:$addr)>;
915 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
916 (t2LDRBpci tconstpool:$addr)>;
918 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
919 (t2LDRHi12 t2addrmode_imm12:$addr)>;
920 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
921 (t2LDRHi8 t2addrmode_imm8:$addr)>;
922 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
923 (t2LDRHs t2addrmode_so_reg:$addr)>;
924 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
925 (t2LDRHpci tconstpool:$addr)>;
929 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$dst, GPR:$base_wb),
930 (ins t2addrmode_imm8:$addr),
931 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
932 "ldr", "\t$dst, $addr!", "$addr.base = $base_wb",
935 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$dst, GPR:$base_wb),
936 (ins GPR:$base, t2am_imm8_offset:$offset),
937 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
938 "ldr", "\t$dst, [$base], $offset", "$base = $base_wb",
941 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
942 (ins t2addrmode_imm8:$addr),
943 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
944 "ldrb", "\t$dst, $addr!", "$addr.base = $base_wb",
946 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
947 (ins GPR:$base, t2am_imm8_offset:$offset),
948 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
949 "ldrb", "\t$dst, [$base], $offset", "$base = $base_wb",
952 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
953 (ins t2addrmode_imm8:$addr),
954 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
955 "ldrh", "\t$dst, $addr!", "$addr.base = $base_wb",
957 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
958 (ins GPR:$base, t2am_imm8_offset:$offset),
959 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
960 "ldrh", "\t$dst, [$base], $offset", "$base = $base_wb",
963 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
964 (ins t2addrmode_imm8:$addr),
965 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
966 "ldrsb", "\t$dst, $addr!", "$addr.base = $base_wb",
968 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
969 (ins GPR:$base, t2am_imm8_offset:$offset),
970 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
971 "ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb",
974 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
975 (ins t2addrmode_imm8:$addr),
976 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
977 "ldrsh", "\t$dst, $addr!", "$addr.base = $base_wb",
979 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
980 (ins GPR:$base, t2am_imm8_offset:$offset),
981 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
982 "ldrsh", "\t$dst, [$base], $offset", "$base = $base_wb",
986 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
987 // for disassembly only.
988 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
989 class T2IldT<bit signed, bits<2> type, string opc>
990 : T2Ii8<(outs GPR:$dst), (ins t2addrmode_imm8:$addr), IIC_iLoadi, opc,
991 "\t$dst, $addr", []> {
992 let Inst{31-27} = 0b11111;
993 let Inst{26-25} = 0b00;
994 let Inst{24} = signed;
996 let Inst{22-21} = type;
997 let Inst{20} = 1; // load
999 let Inst{10-8} = 0b110; // PUW.
1002 def t2LDRT : T2IldT<0, 0b10, "ldrt">;
1003 def t2LDRBT : T2IldT<0, 0b00, "ldrbt">;
1004 def t2LDRHT : T2IldT<0, 0b01, "ldrht">;
1005 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt">;
1006 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht">;
1009 defm t2STR :T2I_st<0b10,"str", BinOpFrag<(store node:$LHS, node:$RHS)>>;
1010 defm t2STRB:T2I_st<0b00,"strb",BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1011 defm t2STRH:T2I_st<0b01,"strh",BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1014 let mayLoad = 1, hasExtraSrcRegAllocReq = 1 in
1015 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1016 (ins GPR:$src1, GPR:$src2, t2addrmode_imm8s4:$addr),
1017 IIC_iStorer, "strd", "\t$src1, $addr", []>;
1020 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1021 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1022 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1023 "str", "\t$src, [$base, $offset]!", "$base = $base_wb",
1025 (pre_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1027 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1028 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1029 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1030 "str", "\t$src, [$base], $offset", "$base = $base_wb",
1032 (post_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1034 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1035 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1036 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1037 "strh", "\t$src, [$base, $offset]!", "$base = $base_wb",
1039 (pre_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1041 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1042 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1043 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1044 "strh", "\t$src, [$base], $offset", "$base = $base_wb",
1046 (post_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1048 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1049 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1050 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1051 "strb", "\t$src, [$base, $offset]!", "$base = $base_wb",
1053 (pre_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1055 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1056 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1057 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1058 "strb", "\t$src, [$base], $offset", "$base = $base_wb",
1060 (post_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1062 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1064 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1065 class T2IstT<bits<2> type, string opc>
1066 : T2Ii8<(outs GPR:$src), (ins t2addrmode_imm8:$addr), IIC_iStorei, opc,
1067 "\t$src, $addr", []> {
1068 let Inst{31-27} = 0b11111;
1069 let Inst{26-25} = 0b00;
1070 let Inst{24} = 0; // not signed
1072 let Inst{22-21} = type;
1073 let Inst{20} = 0; // store
1075 let Inst{10-8} = 0b110; // PUW
1078 def t2STRT : T2IstT<0b10, "strt">;
1079 def t2STRBT : T2IstT<0b00, "strbt">;
1080 def t2STRHT : T2IstT<0b01, "strht">;
1082 // FIXME: ldrd / strd pre / post variants
1084 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1085 // data/instruction access. These are for disassembly only.
1086 multiclass T2Ipl<bit instr, bit write, string opc> {
1088 def i12 : T2I<(outs), (ins t2addrmode_imm12:$addr), IIC_iLoadi, opc,
1090 let Inst{31-25} = 0b1111100;
1091 let Inst{24} = instr;
1092 let Inst{23} = 1; // U = 1
1094 let Inst{21} = write;
1096 let Inst{15-12} = 0b1111;
1099 def i8 : T2I<(outs), (ins t2addrmode_imm8:$addr), IIC_iLoadi, opc,
1101 let Inst{31-25} = 0b1111100;
1102 let Inst{24} = instr;
1103 let Inst{23} = 0; // U = 0
1105 let Inst{21} = write;
1107 let Inst{15-12} = 0b1111;
1108 let Inst{11-8} = 0b1100;
1111 // A8.6.118 #0 and #-0 differs. Maps -0 to -1, -1 to -2, ..., etc.
1112 def pci : T2I<(outs), (ins GPR:$base, i32imm:$imm), IIC_iLoadi, opc,
1113 "\t[pc, ${imm:negzero}]", []> {
1114 let Inst{31-25} = 0b1111100;
1115 let Inst{24} = instr;
1116 let Inst{23} = ?; // add = (U == 1)
1118 let Inst{21} = write;
1120 let Inst{19-16} = 0b1111; // Rn = 0b1111
1121 let Inst{15-12} = 0b1111;
1124 def r : T2I<(outs), (ins GPR:$base, GPR:$a), IIC_iLoadi, opc,
1125 "\t[$base, $a]", []> {
1126 let Inst{31-25} = 0b1111100;
1127 let Inst{24} = instr;
1128 let Inst{23} = 0; // add = TRUE for T1
1130 let Inst{21} = write;
1132 let Inst{15-12} = 0b1111;
1133 let Inst{11-6} = 0000000;
1134 let Inst{5-4} = 0b00; // no shift is applied
1137 def s : T2I<(outs), (ins GPR:$base, GPR:$a, i32imm:$shamt), IIC_iLoadi, opc,
1138 "\t[$base, $a, lsl $shamt]", []> {
1139 let Inst{31-25} = 0b1111100;
1140 let Inst{24} = instr;
1141 let Inst{23} = 0; // add = TRUE for T1
1143 let Inst{21} = write;
1145 let Inst{15-12} = 0b1111;
1146 let Inst{11-6} = 0000000;
1150 defm t2PLD : T2Ipl<0, 0, "pld">;
1151 defm t2PLDW : T2Ipl<0, 1, "pldw">;
1152 defm t2PLI : T2Ipl<1, 0, "pli">;
1154 //===----------------------------------------------------------------------===//
1155 // Load / store multiple Instructions.
1158 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1159 def t2LDM : T2XI<(outs),
1160 (ins addrmode4:$addr, pred:$p, reglist:$wb, variable_ops),
1161 IIC_iLoadm, "ldm${addr:submode}${p}${addr:wide}\t$addr, $wb", []> {
1162 let Inst{31-27} = 0b11101;
1163 let Inst{26-25} = 0b00;
1164 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1166 let Inst{21} = ?; // The W bit.
1167 let Inst{20} = 1; // Load
1170 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1171 def t2STM : T2XI<(outs),
1172 (ins addrmode4:$addr, pred:$p, reglist:$wb, variable_ops),
1173 IIC_iStorem, "stm${addr:submode}${p}${addr:wide}\t$addr, $wb", []> {
1174 let Inst{31-27} = 0b11101;
1175 let Inst{26-25} = 0b00;
1176 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1178 let Inst{21} = ?; // The W bit.
1179 let Inst{20} = 0; // Store
1182 //===----------------------------------------------------------------------===//
1183 // Move Instructions.
1186 let neverHasSideEffects = 1 in
1187 def t2MOVr : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
1188 "mov", ".w\t$dst, $src", []> {
1189 let Inst{31-27} = 0b11101;
1190 let Inst{26-25} = 0b01;
1191 let Inst{24-21} = 0b0010;
1192 let Inst{20} = ?; // The S bit.
1193 let Inst{19-16} = 0b1111; // Rn
1194 let Inst{14-12} = 0b000;
1195 let Inst{7-4} = 0b0000;
1198 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1199 let isReMaterializable = 1, isAsCheapAsAMove = 1, AddedComplexity = 1 in
1200 def t2MOVi : T2sI<(outs GPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
1201 "mov", ".w\t$dst, $src",
1202 [(set GPR:$dst, t2_so_imm:$src)]> {
1203 let Inst{31-27} = 0b11110;
1205 let Inst{24-21} = 0b0010;
1206 let Inst{20} = ?; // The S bit.
1207 let Inst{19-16} = 0b1111; // Rn
1211 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
1212 def t2MOVi16 : T2I<(outs GPR:$dst), (ins i32imm:$src), IIC_iMOVi,
1213 "movw", "\t$dst, $src",
1214 [(set GPR:$dst, imm0_65535:$src)]> {
1215 let Inst{31-27} = 0b11110;
1217 let Inst{24-21} = 0b0010;
1218 let Inst{20} = 0; // The S bit.
1222 let Constraints = "$src = $dst" in
1223 def t2MOVTi16 : T2I<(outs GPR:$dst), (ins GPR:$src, i32imm:$imm), IIC_iMOVi,
1224 "movt", "\t$dst, $imm",
1226 (or (and GPR:$src, 0xffff), lo16AllZero:$imm))]> {
1227 let Inst{31-27} = 0b11110;
1229 let Inst{24-21} = 0b0110;
1230 let Inst{20} = 0; // The S bit.
1234 def : T2Pat<(or GPR:$src, 0xffff0000), (t2MOVTi16 GPR:$src, 0xffff)>;
1236 //===----------------------------------------------------------------------===//
1237 // Extend Instructions.
1242 defm t2SXTB : T2I_unary_rrot<0b100, "sxtb",
1243 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1244 defm t2SXTH : T2I_unary_rrot<0b000, "sxth",
1245 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1246 defm t2SXTB16 : T2I_unary_rrot_DO<0b010, "sxtb16">;
1248 defm t2SXTAB : T2I_bin_rrot<0b100, "sxtab",
1249 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1250 defm t2SXTAH : T2I_bin_rrot<0b000, "sxtah",
1251 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1252 defm t2SXTAB16 : T2I_bin_rrot_DO<0b010, "sxtab16">;
1254 // TODO: SXT(A){B|H}16 - done for disassembly only
1258 let AddedComplexity = 16 in {
1259 defm t2UXTB : T2I_unary_rrot<0b101, "uxtb",
1260 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1261 defm t2UXTH : T2I_unary_rrot<0b001, "uxth",
1262 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1263 defm t2UXTB16 : T2I_unary_rrot<0b011, "uxtb16",
1264 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1266 def : T2Pat<(and (shl GPR:$Src, (i32 8)), 0xFF00FF),
1267 (t2UXTB16r_rot GPR:$Src, 24)>;
1268 def : T2Pat<(and (srl GPR:$Src, (i32 8)), 0xFF00FF),
1269 (t2UXTB16r_rot GPR:$Src, 8)>;
1271 defm t2UXTAB : T2I_bin_rrot<0b101, "uxtab",
1272 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1273 defm t2UXTAH : T2I_bin_rrot<0b001, "uxtah",
1274 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1275 defm t2UXTAB16 : T2I_bin_rrot_DO<0b011, "uxtab16">;
1278 //===----------------------------------------------------------------------===//
1279 // Arithmetic Instructions.
1282 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1283 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1284 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1285 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1287 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1288 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1289 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1290 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1291 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1293 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1294 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1295 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1296 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1297 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1298 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1299 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1300 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1303 defm t2RSB : T2I_rbin_is <0b1110, "rsb",
1304 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1305 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1306 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1308 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1309 let AddedComplexity = 1 in
1310 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1311 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1312 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1313 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1314 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1315 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1317 // Select Bytes -- for disassembly only
1319 def t2SEL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, "sel",
1320 "\t$dst, $a, $b", []> {
1321 let Inst{31-27} = 0b11111;
1322 let Inst{26-24} = 0b010;
1324 let Inst{22-20} = 0b010;
1325 let Inst{15-12} = 0b1111;
1327 let Inst{6-4} = 0b000;
1330 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1331 // And Miscellaneous operations -- for disassembly only
1332 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc>
1333 : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, opc,
1334 "\t$dst, $a, $b", [/* For disassembly only; pattern left blank */]> {
1335 let Inst{31-27} = 0b11111;
1336 let Inst{26-23} = 0b0101;
1337 let Inst{22-20} = op22_20;
1338 let Inst{15-12} = 0b1111;
1339 let Inst{7-4} = op7_4;
1342 // Saturating add/subtract -- for disassembly only
1344 def t2QADD : T2I_pam<0b000, 0b1000, "qadd">;
1345 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1346 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1347 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1348 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1349 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1350 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1351 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub">;
1352 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1353 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1354 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1355 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1356 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1357 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1358 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1359 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1361 // Signed/Unsigned add/subtract -- for disassembly only
1363 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1364 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1365 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1366 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1367 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1368 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1369 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1370 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1371 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1372 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1373 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1374 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1376 // Signed/Unsigned halving add/subtract -- for disassembly only
1378 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1379 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1380 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1381 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1382 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1383 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1384 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1385 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1386 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1387 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1388 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1389 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1391 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1393 def t2USAD8 : T2I_mac<0, 0b111, 0b0000, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1394 NoItinerary, "usad8", "\t$dst, $a, $b", []> {
1395 let Inst{15-12} = 0b1111;
1397 def t2USADA8 : T2I_mac<0, 0b111, 0b0000, (outs GPR:$dst),
1398 (ins GPR:$a, GPR:$b, GPR:$acc), NoItinerary, "usada8",
1399 "\t$dst, $a, $b, $acc", []>;
1401 // Signed/Unsigned saturate -- for disassembly only
1403 def t2SSATlsl : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos,GPR:$a,i32imm:$shamt),
1404 NoItinerary, "ssat", "\t$dst, $bit_pos, $a, lsl $shamt",
1405 [/* For disassembly only; pattern left blank */]> {
1406 let Inst{31-27} = 0b11110;
1407 let Inst{25-22} = 0b1100;
1410 let Inst{21} = 0; // sh = '0'
1413 def t2SSATasr : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos,GPR:$a,i32imm:$shamt),
1414 NoItinerary, "ssat", "\t$dst, $bit_pos, $a, asr $shamt",
1415 [/* For disassembly only; pattern left blank */]> {
1416 let Inst{31-27} = 0b11110;
1417 let Inst{25-22} = 0b1100;
1420 let Inst{21} = 1; // sh = '1'
1423 def t2SSAT16 : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos, GPR:$a), NoItinerary,
1424 "ssat16", "\t$dst, $bit_pos, $a",
1425 [/* For disassembly only; pattern left blank */]> {
1426 let Inst{31-27} = 0b11110;
1427 let Inst{25-22} = 0b1100;
1430 let Inst{21} = 1; // sh = '1'
1431 let Inst{14-12} = 0b000; // imm3 = '000'
1432 let Inst{7-6} = 0b00; // imm2 = '00'
1435 def t2USATlsl : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos,GPR:$a,i32imm:$shamt),
1436 NoItinerary, "usat", "\t$dst, $bit_pos, $a, lsl $shamt",
1437 [/* For disassembly only; pattern left blank */]> {
1438 let Inst{31-27} = 0b11110;
1439 let Inst{25-22} = 0b1110;
1442 let Inst{21} = 0; // sh = '0'
1445 def t2USATasr : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos,GPR:$a,i32imm:$shamt),
1446 NoItinerary, "usat", "\t$dst, $bit_pos, $a, asr $shamt",
1447 [/* For disassembly only; pattern left blank */]> {
1448 let Inst{31-27} = 0b11110;
1449 let Inst{25-22} = 0b1110;
1452 let Inst{21} = 1; // sh = '1'
1455 def t2USAT16 : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos, GPR:$a), NoItinerary,
1456 "usat16", "\t$dst, $bit_pos, $a",
1457 [/* For disassembly only; pattern left blank */]> {
1458 let Inst{31-27} = 0b11110;
1459 let Inst{25-22} = 0b1110;
1462 let Inst{21} = 1; // sh = '1'
1463 let Inst{14-12} = 0b000; // imm3 = '000'
1464 let Inst{7-6} = 0b00; // imm2 = '00'
1467 //===----------------------------------------------------------------------===//
1468 // Shift and rotate Instructions.
1471 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
1472 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
1473 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
1474 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
1476 let Uses = [CPSR] in {
1477 def t2MOVrx : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
1478 "rrx", "\t$dst, $src",
1479 [(set GPR:$dst, (ARMrrx GPR:$src))]> {
1480 let Inst{31-27} = 0b11101;
1481 let Inst{26-25} = 0b01;
1482 let Inst{24-21} = 0b0010;
1483 let Inst{20} = ?; // The S bit.
1484 let Inst{19-16} = 0b1111; // Rn
1485 let Inst{14-12} = 0b000;
1486 let Inst{7-4} = 0b0011;
1490 let Defs = [CPSR] in {
1491 def t2MOVsrl_flag : T2XI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
1492 "lsrs.w\t$dst, $src, #1",
1493 [(set GPR:$dst, (ARMsrl_flag GPR:$src))]> {
1494 let Inst{31-27} = 0b11101;
1495 let Inst{26-25} = 0b01;
1496 let Inst{24-21} = 0b0010;
1497 let Inst{20} = 1; // The S bit.
1498 let Inst{19-16} = 0b1111; // Rn
1499 let Inst{5-4} = 0b01; // Shift type.
1500 // Shift amount = Inst{14-12:7-6} = 1.
1501 let Inst{14-12} = 0b000;
1502 let Inst{7-6} = 0b01;
1504 def t2MOVsra_flag : T2XI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
1505 "asrs.w\t$dst, $src, #1",
1506 [(set GPR:$dst, (ARMsra_flag GPR:$src))]> {
1507 let Inst{31-27} = 0b11101;
1508 let Inst{26-25} = 0b01;
1509 let Inst{24-21} = 0b0010;
1510 let Inst{20} = 1; // The S bit.
1511 let Inst{19-16} = 0b1111; // Rn
1512 let Inst{5-4} = 0b10; // Shift type.
1513 // Shift amount = Inst{14-12:7-6} = 1.
1514 let Inst{14-12} = 0b000;
1515 let Inst{7-6} = 0b01;
1519 //===----------------------------------------------------------------------===//
1520 // Bitwise Instructions.
1523 defm t2AND : T2I_bin_w_irs<0b0000, "and",
1524 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
1525 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
1526 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
1527 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
1528 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
1530 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
1531 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
1533 let Constraints = "$src = $dst" in
1534 def t2BFC : T2I<(outs GPR:$dst), (ins GPR:$src, bf_inv_mask_imm:$imm),
1535 IIC_iUNAsi, "bfc", "\t$dst, $imm",
1536 [(set GPR:$dst, (and GPR:$src, bf_inv_mask_imm:$imm))]> {
1537 let Inst{31-27} = 0b11110;
1539 let Inst{24-20} = 0b10110;
1540 let Inst{19-16} = 0b1111; // Rn
1544 def t2SBFX : T2I<(outs GPR:$dst), (ins GPR:$src, imm0_31:$lsb, imm0_31:$width),
1545 IIC_iALUi, "sbfx", "\t$dst, $src, $lsb, $width", []> {
1546 let Inst{31-27} = 0b11110;
1548 let Inst{24-20} = 0b10100;
1552 def t2UBFX : T2I<(outs GPR:$dst), (ins GPR:$src, imm0_31:$lsb, imm0_31:$width),
1553 IIC_iALUi, "ubfx", "\t$dst, $src, $lsb, $width", []> {
1554 let Inst{31-27} = 0b11110;
1556 let Inst{24-20} = 0b11100;
1560 // A8.6.18 BFI - Bitfield insert (Encoding T1)
1561 // Added for disassembler with the pattern field purposely left blank.
1562 // FIXME: Utilize this instruction in codgen.
1563 def t2BFI : T2I<(outs GPR:$dst), (ins GPR:$src, imm0_31:$lsb, imm0_31:$width),
1564 IIC_iALUi, "bfi", "\t$dst, $src, $lsb, $width", []> {
1565 let Inst{31-27} = 0b11110;
1567 let Inst{24-20} = 0b10110;
1571 defm t2ORN : T2I_bin_irs<0b0011, "orn", BinOpFrag<(or node:$LHS,
1574 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
1575 let AddedComplexity = 1 in
1576 defm t2MVN : T2I_un_irs <0b0011, "mvn", UnOpFrag<(not node:$Src)>, 1, 1>;
1579 def : T2Pat<(and GPR:$src, t2_so_imm_not:$imm),
1580 (t2BICri GPR:$src, t2_so_imm_not:$imm)>;
1582 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
1583 def : T2Pat<(or GPR:$src, t2_so_imm_not:$imm),
1584 (t2ORNri GPR:$src, t2_so_imm_not:$imm)>,
1585 Requires<[IsThumb2]>;
1587 def : T2Pat<(t2_so_imm_not:$src),
1588 (t2MVNi t2_so_imm_not:$src)>;
1590 //===----------------------------------------------------------------------===//
1591 // Multiply Instructions.
1593 let isCommutable = 1 in
1594 def t2MUL: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1595 "mul", "\t$dst, $a, $b",
1596 [(set GPR:$dst, (mul GPR:$a, GPR:$b))]> {
1597 let Inst{31-27} = 0b11111;
1598 let Inst{26-23} = 0b0110;
1599 let Inst{22-20} = 0b000;
1600 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1601 let Inst{7-4} = 0b0000; // Multiply
1604 def t2MLA: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1605 "mla", "\t$dst, $a, $b, $c",
1606 [(set GPR:$dst, (add (mul GPR:$a, GPR:$b), GPR:$c))]> {
1607 let Inst{31-27} = 0b11111;
1608 let Inst{26-23} = 0b0110;
1609 let Inst{22-20} = 0b000;
1610 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1611 let Inst{7-4} = 0b0000; // Multiply
1614 def t2MLS: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1615 "mls", "\t$dst, $a, $b, $c",
1616 [(set GPR:$dst, (sub GPR:$c, (mul GPR:$a, GPR:$b)))]> {
1617 let Inst{31-27} = 0b11111;
1618 let Inst{26-23} = 0b0110;
1619 let Inst{22-20} = 0b000;
1620 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1621 let Inst{7-4} = 0b0001; // Multiply and Subtract
1624 // Extra precision multiplies with low / high results
1625 let neverHasSideEffects = 1 in {
1626 let isCommutable = 1 in {
1627 def t2SMULL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMUL64,
1628 "smull", "\t$ldst, $hdst, $a, $b", []> {
1629 let Inst{31-27} = 0b11111;
1630 let Inst{26-23} = 0b0111;
1631 let Inst{22-20} = 0b000;
1632 let Inst{7-4} = 0b0000;
1635 def t2UMULL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMUL64,
1636 "umull", "\t$ldst, $hdst, $a, $b", []> {
1637 let Inst{31-27} = 0b11111;
1638 let Inst{26-23} = 0b0111;
1639 let Inst{22-20} = 0b010;
1640 let Inst{7-4} = 0b0000;
1644 // Multiply + accumulate
1645 def t2SMLAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMAC64,
1646 "smlal", "\t$ldst, $hdst, $a, $b", []>{
1647 let Inst{31-27} = 0b11111;
1648 let Inst{26-23} = 0b0111;
1649 let Inst{22-20} = 0b100;
1650 let Inst{7-4} = 0b0000;
1653 def t2UMLAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMAC64,
1654 "umlal", "\t$ldst, $hdst, $a, $b", []>{
1655 let Inst{31-27} = 0b11111;
1656 let Inst{26-23} = 0b0111;
1657 let Inst{22-20} = 0b110;
1658 let Inst{7-4} = 0b0000;
1661 def t2UMAAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMAC64,
1662 "umaal", "\t$ldst, $hdst, $a, $b", []>{
1663 let Inst{31-27} = 0b11111;
1664 let Inst{26-23} = 0b0111;
1665 let Inst{22-20} = 0b110;
1666 let Inst{7-4} = 0b0110;
1668 } // neverHasSideEffects
1670 // Rounding variants of the below included for disassembly only
1672 // Most significant word multiply
1673 def t2SMMUL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1674 "smmul", "\t$dst, $a, $b",
1675 [(set GPR:$dst, (mulhs GPR:$a, GPR:$b))]> {
1676 let Inst{31-27} = 0b11111;
1677 let Inst{26-23} = 0b0110;
1678 let Inst{22-20} = 0b101;
1679 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1680 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1683 def t2SMMULR : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1684 "smmulr", "\t$dst, $a, $b", []> {
1685 let Inst{31-27} = 0b11111;
1686 let Inst{26-23} = 0b0110;
1687 let Inst{22-20} = 0b101;
1688 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1689 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1692 def t2SMMLA : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1693 "smmla", "\t$dst, $a, $b, $c",
1694 [(set GPR:$dst, (add (mulhs GPR:$a, GPR:$b), GPR:$c))]> {
1695 let Inst{31-27} = 0b11111;
1696 let Inst{26-23} = 0b0110;
1697 let Inst{22-20} = 0b101;
1698 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1699 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1702 def t2SMMLAR : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1703 "smmlar", "\t$dst, $a, $b, $c", []> {
1704 let Inst{31-27} = 0b11111;
1705 let Inst{26-23} = 0b0110;
1706 let Inst{22-20} = 0b101;
1707 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1708 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1711 def t2SMMLS : T2I <(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1712 "smmls", "\t$dst, $a, $b, $c",
1713 [(set GPR:$dst, (sub GPR:$c, (mulhs GPR:$a, GPR:$b)))]> {
1714 let Inst{31-27} = 0b11111;
1715 let Inst{26-23} = 0b0110;
1716 let Inst{22-20} = 0b110;
1717 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1718 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1721 def t2SMMLSR : T2I <(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1722 "smmlsr", "\t$dst, $a, $b, $c", []> {
1723 let Inst{31-27} = 0b11111;
1724 let Inst{26-23} = 0b0110;
1725 let Inst{22-20} = 0b110;
1726 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1727 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1730 multiclass T2I_smul<string opc, PatFrag opnode> {
1731 def BB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1732 !strconcat(opc, "bb"), "\t$dst, $a, $b",
1733 [(set GPR:$dst, (opnode (sext_inreg GPR:$a, i16),
1734 (sext_inreg GPR:$b, i16)))]> {
1735 let Inst{31-27} = 0b11111;
1736 let Inst{26-23} = 0b0110;
1737 let Inst{22-20} = 0b001;
1738 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1739 let Inst{7-6} = 0b00;
1740 let Inst{5-4} = 0b00;
1743 def BT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1744 !strconcat(opc, "bt"), "\t$dst, $a, $b",
1745 [(set GPR:$dst, (opnode (sext_inreg GPR:$a, i16),
1746 (sra GPR:$b, (i32 16))))]> {
1747 let Inst{31-27} = 0b11111;
1748 let Inst{26-23} = 0b0110;
1749 let Inst{22-20} = 0b001;
1750 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1751 let Inst{7-6} = 0b00;
1752 let Inst{5-4} = 0b01;
1755 def TB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1756 !strconcat(opc, "tb"), "\t$dst, $a, $b",
1757 [(set GPR:$dst, (opnode (sra GPR:$a, (i32 16)),
1758 (sext_inreg GPR:$b, i16)))]> {
1759 let Inst{31-27} = 0b11111;
1760 let Inst{26-23} = 0b0110;
1761 let Inst{22-20} = 0b001;
1762 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1763 let Inst{7-6} = 0b00;
1764 let Inst{5-4} = 0b10;
1767 def TT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1768 !strconcat(opc, "tt"), "\t$dst, $a, $b",
1769 [(set GPR:$dst, (opnode (sra GPR:$a, (i32 16)),
1770 (sra GPR:$b, (i32 16))))]> {
1771 let Inst{31-27} = 0b11111;
1772 let Inst{26-23} = 0b0110;
1773 let Inst{22-20} = 0b001;
1774 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1775 let Inst{7-6} = 0b00;
1776 let Inst{5-4} = 0b11;
1779 def WB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL16,
1780 !strconcat(opc, "wb"), "\t$dst, $a, $b",
1781 [(set GPR:$dst, (sra (opnode GPR:$a,
1782 (sext_inreg GPR:$b, i16)), (i32 16)))]> {
1783 let Inst{31-27} = 0b11111;
1784 let Inst{26-23} = 0b0110;
1785 let Inst{22-20} = 0b011;
1786 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1787 let Inst{7-6} = 0b00;
1788 let Inst{5-4} = 0b00;
1791 def WT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL16,
1792 !strconcat(opc, "wt"), "\t$dst, $a, $b",
1793 [(set GPR:$dst, (sra (opnode GPR:$a,
1794 (sra GPR:$b, (i32 16))), (i32 16)))]> {
1795 let Inst{31-27} = 0b11111;
1796 let Inst{26-23} = 0b0110;
1797 let Inst{22-20} = 0b011;
1798 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1799 let Inst{7-6} = 0b00;
1800 let Inst{5-4} = 0b01;
1805 multiclass T2I_smla<string opc, PatFrag opnode> {
1806 def BB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1807 !strconcat(opc, "bb"), "\t$dst, $a, $b, $acc",
1808 [(set GPR:$dst, (add GPR:$acc,
1809 (opnode (sext_inreg GPR:$a, i16),
1810 (sext_inreg GPR:$b, i16))))]> {
1811 let Inst{31-27} = 0b11111;
1812 let Inst{26-23} = 0b0110;
1813 let Inst{22-20} = 0b001;
1814 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1815 let Inst{7-6} = 0b00;
1816 let Inst{5-4} = 0b00;
1819 def BT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1820 !strconcat(opc, "bt"), "\t$dst, $a, $b, $acc",
1821 [(set GPR:$dst, (add GPR:$acc, (opnode (sext_inreg GPR:$a, i16),
1822 (sra GPR:$b, (i32 16)))))]> {
1823 let Inst{31-27} = 0b11111;
1824 let Inst{26-23} = 0b0110;
1825 let Inst{22-20} = 0b001;
1826 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1827 let Inst{7-6} = 0b00;
1828 let Inst{5-4} = 0b01;
1831 def TB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1832 !strconcat(opc, "tb"), "\t$dst, $a, $b, $acc",
1833 [(set GPR:$dst, (add GPR:$acc, (opnode (sra GPR:$a, (i32 16)),
1834 (sext_inreg GPR:$b, i16))))]> {
1835 let Inst{31-27} = 0b11111;
1836 let Inst{26-23} = 0b0110;
1837 let Inst{22-20} = 0b001;
1838 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1839 let Inst{7-6} = 0b00;
1840 let Inst{5-4} = 0b10;
1843 def TT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1844 !strconcat(opc, "tt"), "\t$dst, $a, $b, $acc",
1845 [(set GPR:$dst, (add GPR:$acc, (opnode (sra GPR:$a, (i32 16)),
1846 (sra GPR:$b, (i32 16)))))]> {
1847 let Inst{31-27} = 0b11111;
1848 let Inst{26-23} = 0b0110;
1849 let Inst{22-20} = 0b001;
1850 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1851 let Inst{7-6} = 0b00;
1852 let Inst{5-4} = 0b11;
1855 def WB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1856 !strconcat(opc, "wb"), "\t$dst, $a, $b, $acc",
1857 [(set GPR:$dst, (add GPR:$acc, (sra (opnode GPR:$a,
1858 (sext_inreg GPR:$b, i16)), (i32 16))))]> {
1859 let Inst{31-27} = 0b11111;
1860 let Inst{26-23} = 0b0110;
1861 let Inst{22-20} = 0b011;
1862 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1863 let Inst{7-6} = 0b00;
1864 let Inst{5-4} = 0b00;
1867 def WT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1868 !strconcat(opc, "wt"), "\t$dst, $a, $b, $acc",
1869 [(set GPR:$dst, (add GPR:$acc, (sra (opnode GPR:$a,
1870 (sra GPR:$b, (i32 16))), (i32 16))))]> {
1871 let Inst{31-27} = 0b11111;
1872 let Inst{26-23} = 0b0110;
1873 let Inst{22-20} = 0b011;
1874 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1875 let Inst{7-6} = 0b00;
1876 let Inst{5-4} = 0b01;
1880 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
1881 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
1883 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
1884 def t2SMLALBB : T2I_mac<1, 0b100, 0b1000, (outs GPR:$ldst,GPR:$hdst),
1885 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlalbb", "\t$ldst, $hdst, $a, $b",
1886 [/* For disassembly only; pattern left blank */]>;
1887 def t2SMLALBT : T2I_mac<1, 0b100, 0b1001, (outs GPR:$ldst,GPR:$hdst),
1888 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlalbt", "\t$ldst, $hdst, $a, $b",
1889 [/* For disassembly only; pattern left blank */]>;
1890 def t2SMLALTB : T2I_mac<1, 0b100, 0b1010, (outs GPR:$ldst,GPR:$hdst),
1891 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlaltb", "\t$ldst, $hdst, $a, $b",
1892 [/* For disassembly only; pattern left blank */]>;
1893 def t2SMLALTT : T2I_mac<1, 0b100, 0b1011, (outs GPR:$ldst,GPR:$hdst),
1894 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlaltt", "\t$ldst, $hdst, $a, $b",
1895 [/* For disassembly only; pattern left blank */]>;
1897 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
1898 // These are for disassembly only.
1900 def t2SMUAD : T2I_mac<0, 0b010, 0b0000, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1901 IIC_iMAC32, "smuad", "\t$dst, $a, $b", []> {
1902 let Inst{15-12} = 0b1111;
1904 def t2SMUADX : T2I_mac<0, 0b010, 0b0001, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1905 IIC_iMAC32, "smuadx", "\t$dst, $a, $b", []> {
1906 let Inst{15-12} = 0b1111;
1908 def t2SMUSD : T2I_mac<0, 0b100, 0b0000, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1909 IIC_iMAC32, "smusd", "\t$dst, $a, $b", []> {
1910 let Inst{15-12} = 0b1111;
1912 def t2SMUSDX : T2I_mac<0, 0b100, 0b0001, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1913 IIC_iMAC32, "smusdx", "\t$dst, $a, $b", []> {
1914 let Inst{15-12} = 0b1111;
1916 def t2SMLAD : T2I_mac<0, 0b010, 0b0000, (outs GPR:$dst),
1917 (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC32, "smlad",
1918 "\t$dst, $a, $b, $acc", []>;
1919 def t2SMLADX : T2I_mac<0, 0b010, 0b0001, (outs GPR:$dst),
1920 (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC32, "smladx",
1921 "\t$dst, $a, $b, $acc", []>;
1922 def t2SMLSD : T2I_mac<0, 0b100, 0b0000, (outs GPR:$dst),
1923 (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC32, "smlsd",
1924 "\t$dst, $a, $b, $acc", []>;
1925 def t2SMLSDX : T2I_mac<0, 0b100, 0b0001, (outs GPR:$dst),
1926 (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC32, "smlsdx",
1927 "\t$dst, $a, $b, $acc", []>;
1928 def t2SMLALD : T2I_mac<1, 0b100, 0b1100, (outs GPR:$ldst,GPR:$hdst),
1929 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlald",
1930 "\t$ldst, $hdst, $a, $b", []>;
1931 def t2SMLALDX : T2I_mac<1, 0b100, 0b1101, (outs GPR:$ldst,GPR:$hdst),
1932 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlaldx",
1933 "\t$ldst, $hdst, $a, $b", []>;
1934 def t2SMLSLD : T2I_mac<1, 0b101, 0b1100, (outs GPR:$ldst,GPR:$hdst),
1935 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlsld",
1936 "\t$ldst, $hdst, $a, $b", []>;
1937 def t2SMLSLDX : T2I_mac<1, 0b101, 0b1101, (outs GPR:$ldst,GPR:$hdst),
1938 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlsldx",
1939 "\t$ldst, $hdst, $a, $b", []>;
1941 //===----------------------------------------------------------------------===//
1942 // Misc. Arithmetic Instructions.
1945 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
1946 InstrItinClass itin, string opc, string asm, list<dag> pattern>
1947 : T2I<oops, iops, itin, opc, asm, pattern> {
1948 let Inst{31-27} = 0b11111;
1949 let Inst{26-22} = 0b01010;
1950 let Inst{21-20} = op1;
1951 let Inst{15-12} = 0b1111;
1952 let Inst{7-6} = 0b10;
1953 let Inst{5-4} = op2;
1956 def t2CLZ : T2I_misc<0b11, 0b00, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
1957 "clz", "\t$dst, $src", [(set GPR:$dst, (ctlz GPR:$src))]>;
1959 def t2RBIT : T2I_misc<0b01, 0b10, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
1960 "rbit", "\t$dst, $src",
1961 [(set GPR:$dst, (ARMrbit GPR:$src))]>;
1963 def t2REV : T2I_misc<0b01, 0b00, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
1964 "rev", ".w\t$dst, $src", [(set GPR:$dst, (bswap GPR:$src))]>;
1966 def t2REV16 : T2I_misc<0b01, 0b01, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
1967 "rev16", ".w\t$dst, $src",
1969 (or (and (srl GPR:$src, (i32 8)), 0xFF),
1970 (or (and (shl GPR:$src, (i32 8)), 0xFF00),
1971 (or (and (srl GPR:$src, (i32 8)), 0xFF0000),
1972 (and (shl GPR:$src, (i32 8)), 0xFF000000)))))]>;
1974 def t2REVSH : T2I_misc<0b01, 0b11, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
1975 "revsh", ".w\t$dst, $src",
1978 (or (srl (and GPR:$src, 0xFF00), (i32 8)),
1979 (shl GPR:$src, (i32 8))), i16))]>;
1981 def t2PKHBT : T2I<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2, i32imm:$shamt),
1982 IIC_iALUsi, "pkhbt", "\t$dst, $src1, $src2, lsl $shamt",
1983 [(set GPR:$dst, (or (and GPR:$src1, 0xFFFF),
1984 (and (shl GPR:$src2, (i32 imm:$shamt)),
1986 let Inst{31-27} = 0b11101;
1987 let Inst{26-25} = 0b01;
1988 let Inst{24-20} = 0b01100;
1989 let Inst{5} = 0; // BT form
1993 // Alternate cases for PKHBT where identities eliminate some nodes.
1994 def : T2Pat<(or (and GPR:$src1, 0xFFFF), (and GPR:$src2, 0xFFFF0000)),
1995 (t2PKHBT GPR:$src1, GPR:$src2, 0)>;
1996 def : T2Pat<(or (and GPR:$src1, 0xFFFF), (shl GPR:$src2, imm16_31:$shamt)),
1997 (t2PKHBT GPR:$src1, GPR:$src2, imm16_31:$shamt)>;
1999 def t2PKHTB : T2I<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2, i32imm:$shamt),
2000 IIC_iALUsi, "pkhtb", "\t$dst, $src1, $src2, asr $shamt",
2001 [(set GPR:$dst, (or (and GPR:$src1, 0xFFFF0000),
2002 (and (sra GPR:$src2, imm16_31:$shamt),
2004 let Inst{31-27} = 0b11101;
2005 let Inst{26-25} = 0b01;
2006 let Inst{24-20} = 0b01100;
2007 let Inst{5} = 1; // TB form
2011 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2012 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2013 def : T2Pat<(or (and GPR:$src1, 0xFFFF0000), (srl GPR:$src2, (i32 16))),
2014 (t2PKHTB GPR:$src1, GPR:$src2, 16)>;
2015 def : T2Pat<(or (and GPR:$src1, 0xFFFF0000),
2016 (and (srl GPR:$src2, imm1_15:$shamt), 0xFFFF)),
2017 (t2PKHTB GPR:$src1, GPR:$src2, imm1_15:$shamt)>;
2019 //===----------------------------------------------------------------------===//
2020 // Comparison Instructions...
2023 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2024 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2025 defm t2CMPz : T2I_cmp_irs<0b1101, "cmp",
2026 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
2028 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2029 // Compare-to-zero still works out, just not the relationals
2030 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2031 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2032 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2033 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2035 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2036 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2038 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2039 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2041 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2042 BinOpFrag<(ARMcmpZ (and node:$LHS, node:$RHS), 0)>>;
2043 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2044 BinOpFrag<(ARMcmpZ (xor node:$LHS, node:$RHS), 0)>>;
2046 // A8.6.27 CBNZ, CBZ - Compare and branch on (non)zero.
2047 // Short range conditional branch. Looks awesome for loops. Need to figure
2048 // out how to use this one.
2051 // Conditional moves
2052 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2053 // a two-value operand where a dag node expects two operands. :(
2054 def t2MOVCCr : T2I<(outs GPR:$dst), (ins GPR:$false, GPR:$true), IIC_iCMOVr,
2055 "mov", ".w\t$dst, $true",
2056 [/*(set GPR:$dst, (ARMcmov GPR:$false, GPR:$true, imm:$cc, CCR:$ccr))*/]>,
2057 RegConstraint<"$false = $dst"> {
2058 let Inst{31-27} = 0b11101;
2059 let Inst{26-25} = 0b01;
2060 let Inst{24-21} = 0b0010;
2061 let Inst{20} = 0; // The S bit.
2062 let Inst{19-16} = 0b1111; // Rn
2063 let Inst{14-12} = 0b000;
2064 let Inst{7-4} = 0b0000;
2067 def t2MOVCCi : T2I<(outs GPR:$dst), (ins GPR:$false, t2_so_imm:$true),
2068 IIC_iCMOVi, "mov", ".w\t$dst, $true",
2069 [/*(set GPR:$dst, (ARMcmov GPR:$false, t2_so_imm:$true, imm:$cc, CCR:$ccr))*/]>,
2070 RegConstraint<"$false = $dst"> {
2071 let Inst{31-27} = 0b11110;
2073 let Inst{24-21} = 0b0010;
2074 let Inst{20} = 0; // The S bit.
2075 let Inst{19-16} = 0b1111; // Rn
2079 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2080 string opc, string asm, list<dag> pattern>
2081 : T2I<oops, iops, itin, opc, asm, pattern> {
2082 let Inst{31-27} = 0b11101;
2083 let Inst{26-25} = 0b01;
2084 let Inst{24-21} = 0b0010;
2085 let Inst{20} = 0; // The S bit.
2086 let Inst{19-16} = 0b1111; // Rn
2087 let Inst{5-4} = opcod; // Shift type.
2089 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs GPR:$dst),
2090 (ins GPR:$false, GPR:$true, i32imm:$rhs),
2091 IIC_iCMOVsi, "lsl", ".w\t$dst, $true, $rhs", []>,
2092 RegConstraint<"$false = $dst">;
2093 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs GPR:$dst),
2094 (ins GPR:$false, GPR:$true, i32imm:$rhs),
2095 IIC_iCMOVsi, "lsr", ".w\t$dst, $true, $rhs", []>,
2096 RegConstraint<"$false = $dst">;
2097 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs GPR:$dst),
2098 (ins GPR:$false, GPR:$true, i32imm:$rhs),
2099 IIC_iCMOVsi, "asr", ".w\t$dst, $true, $rhs", []>,
2100 RegConstraint<"$false = $dst">;
2101 def t2MOVCCror : T2I_movcc_sh<0b11, (outs GPR:$dst),
2102 (ins GPR:$false, GPR:$true, i32imm:$rhs),
2103 IIC_iCMOVsi, "ror", ".w\t$dst, $true, $rhs", []>,
2104 RegConstraint<"$false = $dst">;
2106 //===----------------------------------------------------------------------===//
2107 // Atomic operations intrinsics
2110 // memory barriers protect the atomic sequences
2111 let hasSideEffects = 1 in {
2112 def t2Int_MemBarrierV7 : AInoP<(outs), (ins),
2113 Pseudo, NoItinerary,
2115 [(ARMMemBarrierV7)]>,
2116 Requires<[IsThumb2]> {
2117 let Inst{31-4} = 0xF3BF8F5;
2118 // FIXME: add support for options other than a full system DMB
2119 let Inst{3-0} = 0b1111;
2122 def t2Int_SyncBarrierV7 : AInoP<(outs), (ins),
2123 Pseudo, NoItinerary,
2125 [(ARMSyncBarrierV7)]>,
2126 Requires<[IsThumb2]> {
2127 let Inst{31-4} = 0xF3BF8F4;
2128 // FIXME: add support for options other than a full system DSB
2129 let Inst{3-0} = 0b1111;
2133 // Helper class for multiclass T2MemB -- for disassembly only
2134 class T2I_memb<string opc, string asm>
2135 : T2I<(outs), (ins), NoItinerary, opc, asm,
2136 [/* For disassembly only; pattern left blank */]>,
2137 Requires<[IsThumb2, HasV7]> {
2138 let Inst{31-20} = 0xf3b;
2139 let Inst{15-14} = 0b10;
2143 multiclass T2MemB<bits<4> op7_4, string opc> {
2145 def st : T2I_memb<opc, "\tst"> {
2146 let Inst{7-4} = op7_4;
2147 let Inst{3-0} = 0b1110;
2150 def ish : T2I_memb<opc, "\tish"> {
2151 let Inst{7-4} = op7_4;
2152 let Inst{3-0} = 0b1011;
2155 def ishst : T2I_memb<opc, "\tishst"> {
2156 let Inst{7-4} = op7_4;
2157 let Inst{3-0} = 0b1010;
2160 def nsh : T2I_memb<opc, "\tnsh"> {
2161 let Inst{7-4} = op7_4;
2162 let Inst{3-0} = 0b0111;
2165 def nshst : T2I_memb<opc, "\tnshst"> {
2166 let Inst{7-4} = op7_4;
2167 let Inst{3-0} = 0b0110;
2170 def osh : T2I_memb<opc, "\tosh"> {
2171 let Inst{7-4} = op7_4;
2172 let Inst{3-0} = 0b0011;
2175 def oshst : T2I_memb<opc, "\toshst"> {
2176 let Inst{7-4} = op7_4;
2177 let Inst{3-0} = 0b0010;
2181 // These DMB variants are for disassembly only.
2182 defm t2DMB : T2MemB<0b0101, "dmb">;
2184 // These DSB variants are for disassembly only.
2185 defm t2DSB : T2MemB<0b0100, "dsb">;
2187 // ISB has only full system option -- for disassembly only
2188 def t2ISBsy : T2I_memb<"isb", ""> {
2189 let Inst{7-4} = 0b0110;
2190 let Inst{3-0} = 0b1111;
2193 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2194 InstrItinClass itin, string opc, string asm, string cstr,
2195 list<dag> pattern, bits<4> rt2 = 0b1111>
2196 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2197 let Inst{31-27} = 0b11101;
2198 let Inst{26-20} = 0b0001101;
2199 let Inst{11-8} = rt2;
2200 let Inst{7-6} = 0b01;
2201 let Inst{5-4} = opcod;
2202 let Inst{3-0} = 0b1111;
2204 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2205 InstrItinClass itin, string opc, string asm, string cstr,
2206 list<dag> pattern, bits<4> rt2 = 0b1111>
2207 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2208 let Inst{31-27} = 0b11101;
2209 let Inst{26-20} = 0b0001100;
2210 let Inst{11-8} = rt2;
2211 let Inst{7-6} = 0b01;
2212 let Inst{5-4} = opcod;
2215 let mayLoad = 1 in {
2216 def t2LDREXB : T2I_ldrex<0b00, (outs GPR:$dest), (ins GPR:$ptr), AddrModeNone,
2217 Size4Bytes, NoItinerary, "ldrexb", "\t$dest, [$ptr]",
2219 def t2LDREXH : T2I_ldrex<0b01, (outs GPR:$dest), (ins GPR:$ptr), AddrModeNone,
2220 Size4Bytes, NoItinerary, "ldrexh", "\t$dest, [$ptr]",
2222 def t2LDREX : Thumb2I<(outs GPR:$dest), (ins GPR:$ptr), AddrModeNone,
2223 Size4Bytes, NoItinerary,
2224 "ldrex", "\t$dest, [$ptr]", "",
2226 let Inst{31-27} = 0b11101;
2227 let Inst{26-20} = 0b0000101;
2228 let Inst{11-8} = 0b1111;
2229 let Inst{7-0} = 0b00000000; // imm8 = 0
2231 def t2LDREXD : T2I_ldrex<0b11, (outs GPR:$dest, GPR:$dest2), (ins GPR:$ptr),
2232 AddrModeNone, Size4Bytes, NoItinerary,
2233 "ldrexd", "\t$dest, $dest2, [$ptr]", "",
2237 let mayStore = 1, Constraints = "@earlyclobber $success" in {
2238 def t2STREXB : T2I_strex<0b00, (outs GPR:$success), (ins GPR:$src, GPR:$ptr),
2239 AddrModeNone, Size4Bytes, NoItinerary,
2240 "strexb", "\t$success, $src, [$ptr]", "", []>;
2241 def t2STREXH : T2I_strex<0b01, (outs GPR:$success), (ins GPR:$src, GPR:$ptr),
2242 AddrModeNone, Size4Bytes, NoItinerary,
2243 "strexh", "\t$success, $src, [$ptr]", "", []>;
2244 def t2STREX : Thumb2I<(outs GPR:$success), (ins GPR:$src, GPR:$ptr),
2245 AddrModeNone, Size4Bytes, NoItinerary,
2246 "strex", "\t$success, $src, [$ptr]", "",
2248 let Inst{31-27} = 0b11101;
2249 let Inst{26-20} = 0b0000100;
2250 let Inst{7-0} = 0b00000000; // imm8 = 0
2252 def t2STREXD : T2I_strex<0b11, (outs GPR:$success),
2253 (ins GPR:$src, GPR:$src2, GPR:$ptr),
2254 AddrModeNone, Size4Bytes, NoItinerary,
2255 "strexd", "\t$success, $src, $src2, [$ptr]", "", [],
2259 // Clear-Exclusive is for disassembly only.
2260 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2261 [/* For disassembly only; pattern left blank */]>,
2262 Requires<[IsARM, HasV7]> {
2263 let Inst{31-20} = 0xf3b;
2264 let Inst{15-14} = 0b10;
2266 let Inst{7-4} = 0b0010;
2269 //===----------------------------------------------------------------------===//
2273 // __aeabi_read_tp preserves the registers r1-r3.
2275 Defs = [R0, R12, LR, CPSR] in {
2276 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2277 "bl\t__aeabi_read_tp",
2278 [(set R0, ARMthread_pointer)]> {
2279 let Inst{31-27} = 0b11110;
2280 let Inst{15-14} = 0b11;
2285 //===----------------------------------------------------------------------===//
2286 // SJLJ Exception handling intrinsics
2287 // eh_sjlj_setjmp() is an instruction sequence to store the return
2288 // address and save #0 in R0 for the non-longjmp case.
2289 // Since by its nature we may be coming from some other function to get
2290 // here, and we're using the stack frame for the containing function to
2291 // save/restore registers, we can't keep anything live in regs across
2292 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2293 // when we get here from a longjmp(). We force everthing out of registers
2294 // except for our own input by listing the relevant registers in Defs. By
2295 // doing so, we also cause the prologue/epilogue code to actively preserve
2296 // all of the callee-saved resgisters, which is exactly what we want.
2297 // The current SP is passed in $val, and we reuse the reg as a scratch.
2299 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2300 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2301 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2303 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins GPR:$src, tGPR:$val),
2304 AddrModeNone, SizeSpecial, NoItinerary,
2305 "str\t$val, [$src, #8]\t@ begin eh.setjmp\n"
2307 "\tadds\t$val, #9\n"
2308 "\tstr\t$val, [$src, #4]\n"
2311 "\tmovs\tr0, #1\t@ end eh.setjmp\n"
2313 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, tGPR:$val))]>;
2318 //===----------------------------------------------------------------------===//
2319 // Control-Flow Instructions
2322 // FIXME: remove when we have a way to marking a MI with these properties.
2323 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2325 // FIXME: Should pc be an implicit operand like PICADD, etc?
2326 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2327 hasExtraDefRegAllocReq = 1 in
2328 def t2LDM_RET : T2XI<(outs),
2329 (ins addrmode4:$addr, pred:$p, reglist:$wb, variable_ops),
2330 IIC_Br, "ldm${addr:submode}${p}${addr:wide}\t$addr, $wb",
2332 let Inst{31-27} = 0b11101;
2333 let Inst{26-25} = 0b00;
2334 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
2336 let Inst{21} = ?; // The W bit.
2337 let Inst{20} = 1; // Load
2340 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2341 let isPredicable = 1 in
2342 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2344 [(br bb:$target)]> {
2345 let Inst{31-27} = 0b11110;
2346 let Inst{15-14} = 0b10;
2350 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2353 (ins GPR:$target, GPR:$index, jt2block_operand:$jt, i32imm:$id),
2354 IIC_Br, "mov\tpc, $target\n$jt",
2355 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]> {
2356 let Inst{31-27} = 0b11101;
2357 let Inst{26-20} = 0b0100100;
2358 let Inst{19-16} = 0b1111;
2359 let Inst{14-12} = 0b000;
2360 let Inst{11-8} = 0b1111; // Rd = pc
2361 let Inst{7-4} = 0b0000;
2364 // FIXME: Add a non-pc based case that can be predicated.
2367 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2368 IIC_Br, "tbb\t$index\n$jt", []> {
2369 let Inst{31-27} = 0b11101;
2370 let Inst{26-20} = 0b0001101;
2371 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2372 let Inst{15-8} = 0b11110000;
2373 let Inst{7-4} = 0b0000; // B form
2378 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2379 IIC_Br, "tbh\t$index\n$jt", []> {
2380 let Inst{31-27} = 0b11101;
2381 let Inst{26-20} = 0b0001101;
2382 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2383 let Inst{15-8} = 0b11110000;
2384 let Inst{7-4} = 0b0001; // H form
2387 // Generic versions of the above two instructions, for disassembly only
2389 def t2TBBgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2390 "tbb", "\t[$a, $b]", []>{
2391 let Inst{31-27} = 0b11101;
2392 let Inst{26-20} = 0b0001101;
2393 let Inst{15-8} = 0b11110000;
2394 let Inst{7-4} = 0b0000; // B form
2397 def t2TBHgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2398 "tbh", "\t[$a, $b, lsl #1]", []> {
2399 let Inst{31-27} = 0b11101;
2400 let Inst{26-20} = 0b0001101;
2401 let Inst{15-8} = 0b11110000;
2402 let Inst{7-4} = 0b0001; // H form
2404 } // isNotDuplicable, isIndirectBranch
2406 } // isBranch, isTerminator, isBarrier
2408 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
2409 // a two-value operand where a dag node expects two operands. :(
2410 let isBranch = 1, isTerminator = 1 in
2411 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
2413 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
2414 let Inst{31-27} = 0b11110;
2415 let Inst{15-14} = 0b10;
2421 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
2422 AddrModeNone, Size2Bytes, IIC_iALUx,
2423 "it$mask\t$cc", "", []> {
2424 // 16-bit instruction.
2425 let Inst{31-16} = 0x0000;
2426 let Inst{15-8} = 0b10111111;
2429 // Branch and Exchange Jazelle -- for disassembly only
2431 def t2BXJ : T2I<(outs), (ins GPR:$func), NoItinerary, "bxj", "\t$func",
2432 [/* For disassembly only; pattern left blank */]> {
2433 let Inst{31-27} = 0b11110;
2435 let Inst{25-20} = 0b111100;
2436 let Inst{15-14} = 0b10;
2440 // Change Processor State is a system instruction -- for disassembly only.
2441 // The singleton $opt operand contains the following information:
2442 // opt{4-0} = mode from Inst{4-0}
2443 // opt{5} = changemode from Inst{17}
2444 // opt{8-6} = AIF from Inst{8-6}
2445 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
2446 def t2CPS : T2XI<(outs),(ins i32imm:$opt), NoItinerary, "cps${opt:cps}",
2447 [/* For disassembly only; pattern left blank */]> {
2448 let Inst{31-27} = 0b11110;
2450 let Inst{25-20} = 0b111010;
2451 let Inst{15-14} = 0b10;
2455 // A6.3.4 Branches and miscellaneous control
2456 // Table A6-14 Change Processor State, and hint instructions
2457 // Helper class for disassembly only.
2458 class T2I_hint<bits<8> op7_0, string opc, string asm>
2459 : T2I<(outs), (ins), NoItinerary, opc, asm,
2460 [/* For disassembly only; pattern left blank */]> {
2461 let Inst{31-20} = 0xf3a;
2462 let Inst{15-14} = 0b10;
2464 let Inst{10-8} = 0b000;
2465 let Inst{7-0} = op7_0;
2468 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
2469 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
2470 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
2471 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
2472 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
2474 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
2475 [/* For disassembly only; pattern left blank */]> {
2476 let Inst{31-20} = 0xf3a;
2477 let Inst{15-14} = 0b10;
2479 let Inst{10-8} = 0b000;
2480 let Inst{7-4} = 0b1111;
2483 // Secure Monitor Call is a system instruction -- for disassembly only
2484 // Option = Inst{19-16}
2485 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
2486 [/* For disassembly only; pattern left blank */]> {
2487 let Inst{31-27} = 0b11110;
2488 let Inst{26-20} = 0b1111111;
2489 let Inst{15-12} = 0b1000;
2492 // Store Return State is a system instruction -- for disassembly only
2493 def t2SRSDBW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
2494 [/* For disassembly only; pattern left blank */]> {
2495 let Inst{31-27} = 0b11101;
2496 let Inst{26-20} = 0b0000010; // W = 1
2499 def t2SRSDB : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
2500 [/* For disassembly only; pattern left blank */]> {
2501 let Inst{31-27} = 0b11101;
2502 let Inst{26-20} = 0b0000000; // W = 0
2505 def t2SRSIAW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
2506 [/* For disassembly only; pattern left blank */]> {
2507 let Inst{31-27} = 0b11101;
2508 let Inst{26-20} = 0b0011010; // W = 1
2511 def t2SRSIA : T2I<(outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
2512 [/* For disassembly only; pattern left blank */]> {
2513 let Inst{31-27} = 0b11101;
2514 let Inst{26-20} = 0b0011000; // W = 0
2517 // Return From Exception is a system instruction -- for disassembly only
2518 def t2RFEDBW : T2I<(outs), (ins GPR:$base), NoItinerary, "rfedb", "\t$base!",
2519 [/* For disassembly only; pattern left blank */]> {
2520 let Inst{31-27} = 0b11101;
2521 let Inst{26-20} = 0b0000011; // W = 1
2524 def t2RFEDB : T2I<(outs), (ins GPR:$base), NoItinerary, "rfeab", "\t$base",
2525 [/* For disassembly only; pattern left blank */]> {
2526 let Inst{31-27} = 0b11101;
2527 let Inst{26-20} = 0b0000001; // W = 0
2530 def t2RFEIAW : T2I<(outs), (ins GPR:$base), NoItinerary, "rfeia", "\t$base!",
2531 [/* For disassembly only; pattern left blank */]> {
2532 let Inst{31-27} = 0b11101;
2533 let Inst{26-20} = 0b0011011; // W = 1
2536 def t2RFEIA : T2I<(outs), (ins GPR:$base), NoItinerary, "rfeia", "\t$base",
2537 [/* For disassembly only; pattern left blank */]> {
2538 let Inst{31-27} = 0b11101;
2539 let Inst{26-20} = 0b0011001; // W = 0
2542 //===----------------------------------------------------------------------===//
2543 // Non-Instruction Patterns
2546 // Two piece so_imms.
2547 def : T2Pat<(or GPR:$LHS, t2_so_imm2part:$RHS),
2548 (t2ORRri (t2ORRri GPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2549 (t2_so_imm2part_2 imm:$RHS))>;
2550 def : T2Pat<(xor GPR:$LHS, t2_so_imm2part:$RHS),
2551 (t2EORri (t2EORri GPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2552 (t2_so_imm2part_2 imm:$RHS))>;
2553 def : T2Pat<(add GPR:$LHS, t2_so_imm2part:$RHS),
2554 (t2ADDri (t2ADDri GPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2555 (t2_so_imm2part_2 imm:$RHS))>;
2556 def : T2Pat<(add GPR:$LHS, t2_so_neg_imm2part:$RHS),
2557 (t2SUBri (t2SUBri GPR:$LHS, (t2_so_neg_imm2part_1 imm:$RHS)),
2558 (t2_so_neg_imm2part_2 imm:$RHS))>;
2560 // 32-bit immediate using movw + movt.
2561 // This is a single pseudo instruction to make it re-materializable. Remove
2562 // when we can do generalized remat.
2563 let isReMaterializable = 1 in
2564 def t2MOVi32imm : T2Ix2<(outs GPR:$dst), (ins i32imm:$src), IIC_iMOVi,
2565 "movw", "\t$dst, ${src:lo16}\n\tmovt${p}\t$dst, ${src:hi16}",
2566 [(set GPR:$dst, (i32 imm:$src))]>;
2568 // ConstantPool, GlobalAddress, and JumpTable
2569 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
2570 Requires<[IsThumb2, DontUseMovt]>;
2571 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
2572 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
2573 Requires<[IsThumb2, UseMovt]>;
2575 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
2576 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
2578 // Pseudo instruction that combines ldr from constpool and add pc. This should
2579 // be expanded into two instructions late to allow if-conversion and
2581 let canFoldAsLoad = 1, isReMaterializable = 1 in
2582 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
2583 NoItinerary, "@ ldr.w\t$dst, $addr\n$cp:\n\tadd\t$dst, pc",
2584 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
2586 Requires<[IsThumb2]>;
2588 //===----------------------------------------------------------------------===//
2589 // Move between special register and ARM core register -- for disassembly only
2593 def t2MRS : T2I<(outs GPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, cpsr",
2594 [/* For disassembly only; pattern left blank */]> {
2595 let Inst{31-27} = 0b11110;
2597 let Inst{25-21} = 0b11111;
2598 let Inst{20} = 0; // The R bit.
2599 let Inst{15-14} = 0b10;
2604 def t2MRSsys : T2I<(outs GPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, spsr",
2605 [/* For disassembly only; pattern left blank */]> {
2606 let Inst{31-27} = 0b11110;
2608 let Inst{25-21} = 0b11111;
2609 let Inst{20} = 1; // The R bit.
2610 let Inst{15-14} = 0b10;
2614 // FIXME: mask is ignored for the time being.
2616 def t2MSR : T2I<(outs), (ins GPR:$src), NoItinerary, "msr", "\tcpsr, $src",
2617 [/* For disassembly only; pattern left blank */]> {
2618 let Inst{31-27} = 0b11110;
2620 let Inst{25-21} = 0b11100;
2621 let Inst{20} = 0; // The R bit.
2622 let Inst{15-14} = 0b10;
2626 // FIXME: mask is ignored for the time being.
2628 def t2MSRsys : T2I<(outs), (ins GPR:$src), NoItinerary, "msr", "\tspsr, $src",
2629 [/* For disassembly only; pattern left blank */]> {
2630 let Inst{31-27} = 0b11110;
2632 let Inst{25-21} = 0b11100;
2633 let Inst{20} = 1; // The R bit.
2634 let Inst{15-14} = 0b10;