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 def t2am_imm8s4_offset : Operand<i32> {
154 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
157 // t2addrmode_so_reg := reg + (reg << imm2)
158 def t2addrmode_so_reg : Operand<i32>,
159 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
160 let PrintMethod = "printT2AddrModeSoRegOperand";
161 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
165 //===----------------------------------------------------------------------===//
166 // Multiclass helpers...
169 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
170 /// unary operation that produces a value. These are predicable and can be
171 /// changed to modify CPSR.
172 multiclass T2I_un_irs<bits<4> opcod, string opc, PatFrag opnode,
173 bit Cheap = 0, bit ReMat = 0> {
175 def i : T2sI<(outs GPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
177 [(set GPR:$dst, (opnode t2_so_imm:$src))]> {
178 let isAsCheapAsAMove = Cheap;
179 let isReMaterializable = ReMat;
180 let Inst{31-27} = 0b11110;
182 let Inst{24-21} = opcod;
183 let Inst{20} = ?; // The S bit.
184 let Inst{19-16} = 0b1111; // Rn
188 def r : T2I<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
189 opc, ".w\t$dst, $src",
190 [(set GPR:$dst, (opnode GPR:$src))]> {
191 let Inst{31-27} = 0b11101;
192 let Inst{26-25} = 0b01;
193 let Inst{24-21} = opcod;
194 let Inst{20} = ?; // The S bit.
195 let Inst{19-16} = 0b1111; // Rn
196 let Inst{14-12} = 0b000; // imm3
197 let Inst{7-6} = 0b00; // imm2
198 let Inst{5-4} = 0b00; // type
201 def s : T2I<(outs GPR:$dst), (ins t2_so_reg:$src), IIC_iMOVsi,
202 opc, ".w\t$dst, $src",
203 [(set GPR:$dst, (opnode t2_so_reg:$src))]> {
204 let Inst{31-27} = 0b11101;
205 let Inst{26-25} = 0b01;
206 let Inst{24-21} = opcod;
207 let Inst{20} = ?; // The S bit.
208 let Inst{19-16} = 0b1111; // Rn
212 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
213 // binary operation that produces a value. These are predicable and can be
214 /// changed to modify CPSR.
215 multiclass T2I_bin_irs<bits<4> opcod, string opc, PatFrag opnode,
216 bit Commutable = 0, string wide =""> {
218 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
219 opc, "\t$dst, $lhs, $rhs",
220 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
221 let Inst{31-27} = 0b11110;
223 let Inst{24-21} = opcod;
224 let Inst{20} = ?; // The S bit.
228 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
229 opc, !strconcat(wide, "\t$dst, $lhs, $rhs"),
230 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
231 let isCommutable = Commutable;
232 let Inst{31-27} = 0b11101;
233 let Inst{26-25} = 0b01;
234 let Inst{24-21} = opcod;
235 let Inst{20} = ?; // The S bit.
236 let Inst{14-12} = 0b000; // imm3
237 let Inst{7-6} = 0b00; // imm2
238 let Inst{5-4} = 0b00; // type
241 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
242 opc, !strconcat(wide, "\t$dst, $lhs, $rhs"),
243 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
244 let Inst{31-27} = 0b11101;
245 let Inst{26-25} = 0b01;
246 let Inst{24-21} = opcod;
247 let Inst{20} = ?; // The S bit.
251 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
252 // the ".w" prefix to indicate that they are wide.
253 multiclass T2I_bin_w_irs<bits<4> opcod, string opc, PatFrag opnode,
254 bit Commutable = 0> :
255 T2I_bin_irs<opcod, opc, opnode, Commutable, ".w">;
257 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
258 /// reversed. It doesn't define the 'rr' form since it's handled by its
259 /// T2I_bin_irs counterpart.
260 multiclass T2I_rbin_is<bits<4> opcod, string opc, PatFrag opnode> {
262 def ri : T2I<(outs GPR:$dst), (ins GPR:$rhs, t2_so_imm:$lhs), IIC_iALUi,
263 opc, ".w\t$dst, $rhs, $lhs",
264 [(set GPR:$dst, (opnode t2_so_imm:$lhs, GPR:$rhs))]> {
265 let Inst{31-27} = 0b11110;
267 let Inst{24-21} = opcod;
268 let Inst{20} = 0; // The S bit.
272 def rs : T2I<(outs GPR:$dst), (ins GPR:$rhs, t2_so_reg:$lhs), IIC_iALUsi,
273 opc, "\t$dst, $rhs, $lhs",
274 [(set GPR:$dst, (opnode t2_so_reg:$lhs, GPR:$rhs))]> {
275 let Inst{31-27} = 0b11101;
276 let Inst{26-25} = 0b01;
277 let Inst{24-21} = opcod;
278 let Inst{20} = 0; // The S bit.
282 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
283 /// instruction modifies the CPSR register.
284 let Defs = [CPSR] in {
285 multiclass T2I_bin_s_irs<bits<4> opcod, string opc, PatFrag opnode,
286 bit Commutable = 0> {
288 def ri : T2I<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
289 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
290 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
291 let Inst{31-27} = 0b11110;
293 let Inst{24-21} = opcod;
294 let Inst{20} = 1; // The S bit.
298 def rr : T2I<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
299 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
300 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
301 let isCommutable = Commutable;
302 let Inst{31-27} = 0b11101;
303 let Inst{26-25} = 0b01;
304 let Inst{24-21} = opcod;
305 let Inst{20} = 1; // The S bit.
306 let Inst{14-12} = 0b000; // imm3
307 let Inst{7-6} = 0b00; // imm2
308 let Inst{5-4} = 0b00; // type
311 def rs : T2I<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
312 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
313 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
314 let Inst{31-27} = 0b11101;
315 let Inst{26-25} = 0b01;
316 let Inst{24-21} = opcod;
317 let Inst{20} = 1; // The S bit.
322 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
323 /// patterns for a binary operation that produces a value.
324 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
325 bit Commutable = 0> {
327 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
328 opc, ".w\t$dst, $lhs, $rhs",
329 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
330 let Inst{31-27} = 0b11110;
333 let Inst{23-21} = op23_21;
334 let Inst{20} = 0; // The S bit.
338 def ri12 : T2I<(outs GPR:$dst), (ins GPR:$lhs, imm0_4095:$rhs), IIC_iALUi,
339 !strconcat(opc, "w"), "\t$dst, $lhs, $rhs",
340 [(set GPR:$dst, (opnode GPR:$lhs, imm0_4095:$rhs))]> {
341 let Inst{31-27} = 0b11110;
344 let Inst{23-21} = op23_21;
345 let Inst{20} = 0; // The S bit.
349 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
350 opc, ".w\t$dst, $lhs, $rhs",
351 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
352 let isCommutable = Commutable;
353 let Inst{31-27} = 0b11101;
354 let Inst{26-25} = 0b01;
356 let Inst{23-21} = op23_21;
357 let Inst{20} = 0; // The S bit.
358 let Inst{14-12} = 0b000; // imm3
359 let Inst{7-6} = 0b00; // imm2
360 let Inst{5-4} = 0b00; // type
363 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
364 opc, ".w\t$dst, $lhs, $rhs",
365 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
366 let Inst{31-27} = 0b11101;
367 let Inst{26-25} = 0b01;
369 let Inst{23-21} = op23_21;
370 let Inst{20} = 0; // The S bit.
374 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
375 /// for a binary operation that produces a value and use the carry
376 /// bit. It's not predicable.
377 let Uses = [CPSR] in {
378 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
379 bit Commutable = 0> {
381 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
382 opc, "\t$dst, $lhs, $rhs",
383 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>,
384 Requires<[IsThumb2]> {
385 let Inst{31-27} = 0b11110;
387 let Inst{24-21} = opcod;
388 let Inst{20} = 0; // The S bit.
392 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
393 opc, ".w\t$dst, $lhs, $rhs",
394 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>,
395 Requires<[IsThumb2]> {
396 let isCommutable = Commutable;
397 let Inst{31-27} = 0b11101;
398 let Inst{26-25} = 0b01;
399 let Inst{24-21} = opcod;
400 let Inst{20} = 0; // The S bit.
401 let Inst{14-12} = 0b000; // imm3
402 let Inst{7-6} = 0b00; // imm2
403 let Inst{5-4} = 0b00; // type
406 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
407 opc, ".w\t$dst, $lhs, $rhs",
408 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>,
409 Requires<[IsThumb2]> {
410 let Inst{31-27} = 0b11101;
411 let Inst{26-25} = 0b01;
412 let Inst{24-21} = opcod;
413 let Inst{20} = 0; // The S bit.
417 // Carry setting variants
418 let Defs = [CPSR] in {
419 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
420 bit Commutable = 0> {
422 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
423 opc, "\t$dst, $lhs, $rhs",
424 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>,
425 Requires<[IsThumb2]> {
426 let Inst{31-27} = 0b11110;
428 let Inst{24-21} = opcod;
429 let Inst{20} = 1; // The S bit.
433 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
434 opc, ".w\t$dst, $lhs, $rhs",
435 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>,
436 Requires<[IsThumb2]> {
437 let isCommutable = Commutable;
438 let Inst{31-27} = 0b11101;
439 let Inst{26-25} = 0b01;
440 let Inst{24-21} = opcod;
441 let Inst{20} = 1; // The S bit.
442 let Inst{14-12} = 0b000; // imm3
443 let Inst{7-6} = 0b00; // imm2
444 let Inst{5-4} = 0b00; // type
447 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
448 opc, ".w\t$dst, $lhs, $rhs",
449 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>,
450 Requires<[IsThumb2]> {
451 let Inst{31-27} = 0b11101;
452 let Inst{26-25} = 0b01;
453 let Inst{24-21} = opcod;
454 let Inst{20} = 1; // The S bit.
460 /// T2I_rbin_s_is - Same as T2I_rbin_is except sets 's' bit.
461 let Defs = [CPSR] in {
462 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
464 def ri : T2XI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_imm:$lhs, cc_out:$s),
466 !strconcat(opc, "${s}.w\t$dst, $rhs, $lhs"),
467 [(set GPR:$dst, (opnode t2_so_imm:$lhs, GPR:$rhs))]> {
468 let Inst{31-27} = 0b11110;
470 let Inst{24-21} = opcod;
471 let Inst{20} = 1; // The S bit.
475 def rs : T2XI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_reg:$lhs, cc_out:$s),
477 !strconcat(opc, "${s}\t$dst, $rhs, $lhs"),
478 [(set GPR:$dst, (opnode t2_so_reg:$lhs, GPR:$rhs))]> {
479 let Inst{31-27} = 0b11101;
480 let Inst{26-25} = 0b01;
481 let Inst{24-21} = opcod;
482 let Inst{20} = 1; // The S bit.
487 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
488 // rotate operation that produces a value.
489 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
491 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
492 opc, ".w\t$dst, $lhs, $rhs",
493 [(set GPR:$dst, (opnode GPR:$lhs, imm1_31:$rhs))]> {
494 let Inst{31-27} = 0b11101;
495 let Inst{26-21} = 0b010010;
496 let Inst{19-16} = 0b1111; // Rn
497 let Inst{5-4} = opcod;
500 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iMOVsr,
501 opc, ".w\t$dst, $lhs, $rhs",
502 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
503 let Inst{31-27} = 0b11111;
504 let Inst{26-23} = 0b0100;
505 let Inst{22-21} = opcod;
506 let Inst{15-12} = 0b1111;
507 let Inst{7-4} = 0b0000;
511 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
512 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
513 /// a explicit result, only implicitly set CPSR.
514 let Defs = [CPSR] in {
515 multiclass T2I_cmp_irs<bits<4> opcod, string opc, PatFrag opnode> {
517 def ri : T2I<(outs), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iCMPi,
518 opc, ".w\t$lhs, $rhs",
519 [(opnode GPR:$lhs, t2_so_imm:$rhs)]> {
520 let Inst{31-27} = 0b11110;
522 let Inst{24-21} = opcod;
523 let Inst{20} = 1; // The S bit.
525 let Inst{11-8} = 0b1111; // Rd
528 def rr : T2I<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
529 opc, ".w\t$lhs, $rhs",
530 [(opnode GPR:$lhs, GPR:$rhs)]> {
531 let Inst{31-27} = 0b11101;
532 let Inst{26-25} = 0b01;
533 let Inst{24-21} = opcod;
534 let Inst{20} = 1; // The S bit.
535 let Inst{14-12} = 0b000; // imm3
536 let Inst{11-8} = 0b1111; // Rd
537 let Inst{7-6} = 0b00; // imm2
538 let Inst{5-4} = 0b00; // type
541 def rs : T2I<(outs), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iCMPsi,
542 opc, ".w\t$lhs, $rhs",
543 [(opnode GPR:$lhs, t2_so_reg:$rhs)]> {
544 let Inst{31-27} = 0b11101;
545 let Inst{26-25} = 0b01;
546 let Inst{24-21} = opcod;
547 let Inst{20} = 1; // The S bit.
548 let Inst{11-8} = 0b1111; // Rd
553 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
554 multiclass T2I_ld<bit signed, bits<2> opcod, string opc, PatFrag opnode> {
555 def i12 : T2Ii12<(outs GPR:$dst), (ins t2addrmode_imm12:$addr), IIC_iLoadi,
556 opc, ".w\t$dst, $addr",
557 [(set GPR:$dst, (opnode t2addrmode_imm12:$addr))]> {
558 let Inst{31-27} = 0b11111;
559 let Inst{26-25} = 0b00;
560 let Inst{24} = signed;
562 let Inst{22-21} = opcod;
563 let Inst{20} = 1; // load
565 def i8 : T2Ii8 <(outs GPR:$dst), (ins t2addrmode_imm8:$addr), IIC_iLoadi,
566 opc, "\t$dst, $addr",
567 [(set GPR:$dst, (opnode t2addrmode_imm8:$addr))]> {
568 let Inst{31-27} = 0b11111;
569 let Inst{26-25} = 0b00;
570 let Inst{24} = signed;
572 let Inst{22-21} = opcod;
573 let Inst{20} = 1; // load
575 // Offset: index==TRUE, wback==FALSE
576 let Inst{10} = 1; // The P bit.
577 let Inst{8} = 0; // The W bit.
579 def s : T2Iso <(outs GPR:$dst), (ins t2addrmode_so_reg:$addr), IIC_iLoadr,
580 opc, ".w\t$dst, $addr",
581 [(set GPR:$dst, (opnode t2addrmode_so_reg:$addr))]> {
582 let Inst{31-27} = 0b11111;
583 let Inst{26-25} = 0b00;
584 let Inst{24} = signed;
586 let Inst{22-21} = opcod;
587 let Inst{20} = 1; // load
588 let Inst{11-6} = 0b000000;
590 def pci : T2Ipc <(outs GPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
591 opc, ".w\t$dst, $addr",
592 [(set GPR:$dst, (opnode (ARMWrapper tconstpool:$addr)))]> {
593 let isReMaterializable = 1;
594 let Inst{31-27} = 0b11111;
595 let Inst{26-25} = 0b00;
596 let Inst{24} = signed;
597 let Inst{23} = ?; // add = (U == '1')
598 let Inst{22-21} = opcod;
599 let Inst{20} = 1; // load
600 let Inst{19-16} = 0b1111; // Rn
604 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
605 multiclass T2I_st<bits<2> opcod, string opc, PatFrag opnode> {
606 def i12 : T2Ii12<(outs), (ins GPR:$src, t2addrmode_imm12:$addr), IIC_iStorei,
607 opc, ".w\t$src, $addr",
608 [(opnode GPR:$src, t2addrmode_imm12:$addr)]> {
609 let Inst{31-27} = 0b11111;
610 let Inst{26-23} = 0b0001;
611 let Inst{22-21} = opcod;
612 let Inst{20} = 0; // !load
614 def i8 : T2Ii8 <(outs), (ins GPR:$src, t2addrmode_imm8:$addr), IIC_iStorei,
615 opc, "\t$src, $addr",
616 [(opnode GPR:$src, t2addrmode_imm8:$addr)]> {
617 let Inst{31-27} = 0b11111;
618 let Inst{26-23} = 0b0000;
619 let Inst{22-21} = opcod;
620 let Inst{20} = 0; // !load
622 // Offset: index==TRUE, wback==FALSE
623 let Inst{10} = 1; // The P bit.
624 let Inst{8} = 0; // The W bit.
626 def s : T2Iso <(outs), (ins GPR:$src, t2addrmode_so_reg:$addr), IIC_iStorer,
627 opc, ".w\t$src, $addr",
628 [(opnode GPR:$src, t2addrmode_so_reg:$addr)]> {
629 let Inst{31-27} = 0b11111;
630 let Inst{26-23} = 0b0000;
631 let Inst{22-21} = opcod;
632 let Inst{20} = 0; // !load
633 let Inst{11-6} = 0b000000;
637 /// T2I_unary_rrot - A unary operation with two forms: one whose operand is a
638 /// register and one whose operand is a register rotated by 8/16/24.
639 multiclass T2I_unary_rrot<bits<3> opcod, string opc, PatFrag opnode> {
640 def r : T2I<(outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
641 opc, ".w\t$dst, $src",
642 [(set GPR:$dst, (opnode GPR:$src))]>,
643 Requires<[HasT2ExtractPack]> {
644 let Inst{31-27} = 0b11111;
645 let Inst{26-23} = 0b0100;
646 let Inst{22-20} = opcod;
647 let Inst{19-16} = 0b1111; // Rn
648 let Inst{15-12} = 0b1111;
650 let Inst{5-4} = 0b00; // rotate
652 def r_rot : T2I<(outs GPR:$dst), (ins GPR:$src, i32imm:$rot), IIC_iUNAsi,
653 opc, ".w\t$dst, $src, ror $rot",
654 [(set GPR:$dst, (opnode (rotr GPR:$src, rot_imm:$rot)))]>,
655 Requires<[HasT2ExtractPack]> {
656 let Inst{31-27} = 0b11111;
657 let Inst{26-23} = 0b0100;
658 let Inst{22-20} = opcod;
659 let Inst{19-16} = 0b1111; // Rn
660 let Inst{15-12} = 0b1111;
662 let Inst{5-4} = {?,?}; // rotate
666 // SXTB16 and UXTB16 do not need the .w qualifier.
667 multiclass T2I_unary_rrot_nw<bits<3> opcod, string opc, PatFrag opnode> {
668 def r : T2I<(outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
670 [(set GPR:$dst, (opnode GPR:$src))]>,
671 Requires<[HasT2ExtractPack]> {
672 let Inst{31-27} = 0b11111;
673 let Inst{26-23} = 0b0100;
674 let Inst{22-20} = opcod;
675 let Inst{19-16} = 0b1111; // Rn
676 let Inst{15-12} = 0b1111;
678 let Inst{5-4} = 0b00; // rotate
680 def r_rot : T2I<(outs GPR:$dst), (ins GPR:$src, i32imm:$rot), IIC_iUNAsi,
681 opc, "\t$dst, $src, ror $rot",
682 [(set GPR:$dst, (opnode (rotr GPR:$src, rot_imm:$rot)))]>,
683 Requires<[HasT2ExtractPack]> {
684 let Inst{31-27} = 0b11111;
685 let Inst{26-23} = 0b0100;
686 let Inst{22-20} = opcod;
687 let Inst{19-16} = 0b1111; // Rn
688 let Inst{15-12} = 0b1111;
690 let Inst{5-4} = {?,?}; // rotate
694 // DO variant - disassembly only, no pattern
696 multiclass T2I_unary_rrot_DO<bits<3> opcod, string opc> {
697 def r : T2I<(outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
698 opc, "\t$dst, $src", []> {
699 let Inst{31-27} = 0b11111;
700 let Inst{26-23} = 0b0100;
701 let Inst{22-20} = opcod;
702 let Inst{19-16} = 0b1111; // Rn
703 let Inst{15-12} = 0b1111;
705 let Inst{5-4} = 0b00; // rotate
707 def r_rot : T2I<(outs GPR:$dst), (ins GPR:$src, i32imm:$rot), IIC_iUNAsi,
708 opc, "\t$dst, $src, ror $rot", []> {
709 let Inst{31-27} = 0b11111;
710 let Inst{26-23} = 0b0100;
711 let Inst{22-20} = opcod;
712 let Inst{19-16} = 0b1111; // Rn
713 let Inst{15-12} = 0b1111;
715 let Inst{5-4} = {?,?}; // rotate
719 /// T2I_bin_rrot - A binary operation with two forms: one whose operand is a
720 /// register and one whose operand is a register rotated by 8/16/24.
721 multiclass T2I_bin_rrot<bits<3> opcod, string opc, PatFrag opnode> {
722 def rr : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS), IIC_iALUr,
723 opc, "\t$dst, $LHS, $RHS",
724 [(set GPR:$dst, (opnode GPR:$LHS, GPR:$RHS))]>,
725 Requires<[HasT2ExtractPack]> {
726 let Inst{31-27} = 0b11111;
727 let Inst{26-23} = 0b0100;
728 let Inst{22-20} = opcod;
729 let Inst{15-12} = 0b1111;
731 let Inst{5-4} = 0b00; // rotate
733 def rr_rot : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS, i32imm:$rot),
734 IIC_iALUsr, opc, "\t$dst, $LHS, $RHS, ror $rot",
735 [(set GPR:$dst, (opnode GPR:$LHS,
736 (rotr GPR:$RHS, rot_imm:$rot)))]>,
737 Requires<[HasT2ExtractPack]> {
738 let Inst{31-27} = 0b11111;
739 let Inst{26-23} = 0b0100;
740 let Inst{22-20} = opcod;
741 let Inst{15-12} = 0b1111;
743 let Inst{5-4} = {?,?}; // rotate
747 // DO variant - disassembly only, no pattern
749 multiclass T2I_bin_rrot_DO<bits<3> opcod, string opc> {
750 def rr : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS), IIC_iALUr,
751 opc, "\t$dst, $LHS, $RHS", []> {
752 let Inst{31-27} = 0b11111;
753 let Inst{26-23} = 0b0100;
754 let Inst{22-20} = opcod;
755 let Inst{15-12} = 0b1111;
757 let Inst{5-4} = 0b00; // rotate
759 def rr_rot : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS, i32imm:$rot),
760 IIC_iALUsr, opc, "\t$dst, $LHS, $RHS, ror $rot", []> {
761 let Inst{31-27} = 0b11111;
762 let Inst{26-23} = 0b0100;
763 let Inst{22-20} = opcod;
764 let Inst{15-12} = 0b1111;
766 let Inst{5-4} = {?,?}; // rotate
770 //===----------------------------------------------------------------------===//
772 //===----------------------------------------------------------------------===//
774 //===----------------------------------------------------------------------===//
775 // Miscellaneous Instructions.
778 // LEApcrel - Load a pc-relative address into a register without offending the
780 let neverHasSideEffects = 1 in {
781 def t2LEApcrel : T2XI<(outs GPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
782 "adr$p.w\t$dst, #$label", []> {
783 let Inst{31-27} = 0b11110;
784 let Inst{25-24} = 0b10;
785 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
788 let Inst{19-16} = 0b1111; // Rn
791 def t2LEApcrelJT : T2XI<(outs GPR:$dst),
792 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
793 "adr$p.w\t$dst, #${label}_${id}", []> {
794 let Inst{31-27} = 0b11110;
795 let Inst{25-24} = 0b10;
796 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
799 let Inst{19-16} = 0b1111; // Rn
802 } // neverHasSideEffects
804 // ADD r, sp, {so_imm|i12}
805 def t2ADDrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
806 IIC_iALUi, "add", ".w\t$dst, $sp, $imm", []> {
807 let Inst{31-27} = 0b11110;
809 let Inst{24-21} = 0b1000;
810 let Inst{20} = ?; // The S bit.
811 let Inst{19-16} = 0b1101; // Rn = sp
814 def t2ADDrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
815 IIC_iALUi, "addw", "\t$dst, $sp, $imm", []> {
816 let Inst{31-27} = 0b11110;
818 let Inst{24-21} = 0b0000;
819 let Inst{20} = 0; // The S bit.
820 let Inst{19-16} = 0b1101; // Rn = sp
825 def t2ADDrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
826 IIC_iALUsi, "add", ".w\t$dst, $sp, $rhs", []> {
827 let Inst{31-27} = 0b11101;
828 let Inst{26-25} = 0b01;
829 let Inst{24-21} = 0b1000;
830 let Inst{20} = ?; // The S bit.
831 let Inst{19-16} = 0b1101; // Rn = sp
835 // SUB r, sp, {so_imm|i12}
836 def t2SUBrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
837 IIC_iALUi, "sub", ".w\t$dst, $sp, $imm", []> {
838 let Inst{31-27} = 0b11110;
840 let Inst{24-21} = 0b1101;
841 let Inst{20} = ?; // The S bit.
842 let Inst{19-16} = 0b1101; // Rn = sp
845 def t2SUBrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
846 IIC_iALUi, "subw", "\t$dst, $sp, $imm", []> {
847 let Inst{31-27} = 0b11110;
849 let Inst{24-21} = 0b0101;
850 let Inst{20} = 0; // The S bit.
851 let Inst{19-16} = 0b1101; // Rn = sp
856 def t2SUBrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
858 "sub", "\t$dst, $sp, $rhs", []> {
859 let Inst{31-27} = 0b11101;
860 let Inst{26-25} = 0b01;
861 let Inst{24-21} = 0b1101;
862 let Inst{20} = ?; // The S bit.
863 let Inst{19-16} = 0b1101; // Rn = sp
867 // Signed and unsigned division on v7-M
868 def t2SDIV : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALUi,
869 "sdiv", "\t$dst, $a, $b",
870 [(set GPR:$dst, (sdiv GPR:$a, GPR:$b))]>,
871 Requires<[HasDivide]> {
872 let Inst{31-27} = 0b11111;
873 let Inst{26-21} = 0b011100;
875 let Inst{15-12} = 0b1111;
876 let Inst{7-4} = 0b1111;
879 def t2UDIV : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALUi,
880 "udiv", "\t$dst, $a, $b",
881 [(set GPR:$dst, (udiv GPR:$a, GPR:$b))]>,
882 Requires<[HasDivide]> {
883 let Inst{31-27} = 0b11111;
884 let Inst{26-21} = 0b011101;
886 let Inst{15-12} = 0b1111;
887 let Inst{7-4} = 0b1111;
890 // Pseudo instruction that will expand into a t2SUBrSPi + a copy.
891 let usesCustomInserter = 1 in { // Expanded after instruction selection.
892 def t2SUBrSPi_ : PseudoInst<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
893 NoItinerary, "${:comment} sub.w\t$dst, $sp, $imm", []>;
894 def t2SUBrSPi12_ : PseudoInst<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
895 NoItinerary, "${:comment} subw\t$dst, $sp, $imm", []>;
896 def t2SUBrSPs_ : PseudoInst<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
897 NoItinerary, "${:comment} sub\t$dst, $sp, $rhs", []>;
898 } // usesCustomInserter
901 //===----------------------------------------------------------------------===//
902 // Load / store Instructions.
906 let canFoldAsLoad = 1, isReMaterializable = 1 in
907 defm t2LDR : T2I_ld<0, 0b10, "ldr", UnOpFrag<(load node:$Src)>>;
909 // Loads with zero extension
910 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", UnOpFrag<(zextloadi16 node:$Src)>>;
911 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", UnOpFrag<(zextloadi8 node:$Src)>>;
913 // Loads with sign extension
914 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", UnOpFrag<(sextloadi16 node:$Src)>>;
915 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", UnOpFrag<(sextloadi8 node:$Src)>>;
917 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in {
919 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs GPR:$dst1, GPR:$dst2),
920 (ins t2addrmode_imm8s4:$addr),
921 IIC_iLoadi, "ldrd", "\t$dst1, $addr", []>;
922 def t2LDRDpci : T2Ii8s4<1, 0, 1, (outs GPR:$dst1, GPR:$dst2),
923 (ins i32imm:$addr), IIC_iLoadi,
924 "ldrd", "\t$dst1, $addr", []> {
925 let Inst{19-16} = 0b1111; // Rn
929 // zextload i1 -> zextload i8
930 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
931 (t2LDRBi12 t2addrmode_imm12:$addr)>;
932 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
933 (t2LDRBi8 t2addrmode_imm8:$addr)>;
934 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
935 (t2LDRBs t2addrmode_so_reg:$addr)>;
936 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
937 (t2LDRBpci tconstpool:$addr)>;
939 // extload -> zextload
940 // FIXME: Reduce the number of patterns by legalizing extload to zextload
942 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
943 (t2LDRBi12 t2addrmode_imm12:$addr)>;
944 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
945 (t2LDRBi8 t2addrmode_imm8:$addr)>;
946 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
947 (t2LDRBs t2addrmode_so_reg:$addr)>;
948 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
949 (t2LDRBpci tconstpool:$addr)>;
951 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
952 (t2LDRBi12 t2addrmode_imm12:$addr)>;
953 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
954 (t2LDRBi8 t2addrmode_imm8:$addr)>;
955 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
956 (t2LDRBs t2addrmode_so_reg:$addr)>;
957 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
958 (t2LDRBpci tconstpool:$addr)>;
960 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
961 (t2LDRHi12 t2addrmode_imm12:$addr)>;
962 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
963 (t2LDRHi8 t2addrmode_imm8:$addr)>;
964 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
965 (t2LDRHs t2addrmode_so_reg:$addr)>;
966 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
967 (t2LDRHpci tconstpool:$addr)>;
971 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$dst, GPR:$base_wb),
972 (ins t2addrmode_imm8:$addr),
973 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
974 "ldr", "\t$dst, $addr!", "$addr.base = $base_wb",
977 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$dst, GPR:$base_wb),
978 (ins GPR:$base, t2am_imm8_offset:$offset),
979 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
980 "ldr", "\t$dst, [$base], $offset", "$base = $base_wb",
983 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
984 (ins t2addrmode_imm8:$addr),
985 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
986 "ldrb", "\t$dst, $addr!", "$addr.base = $base_wb",
988 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
989 (ins GPR:$base, t2am_imm8_offset:$offset),
990 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
991 "ldrb", "\t$dst, [$base], $offset", "$base = $base_wb",
994 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
995 (ins t2addrmode_imm8:$addr),
996 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
997 "ldrh", "\t$dst, $addr!", "$addr.base = $base_wb",
999 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1000 (ins GPR:$base, t2am_imm8_offset:$offset),
1001 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1002 "ldrh", "\t$dst, [$base], $offset", "$base = $base_wb",
1005 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1006 (ins t2addrmode_imm8:$addr),
1007 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1008 "ldrsb", "\t$dst, $addr!", "$addr.base = $base_wb",
1010 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1011 (ins GPR:$base, t2am_imm8_offset:$offset),
1012 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1013 "ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb",
1016 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1017 (ins t2addrmode_imm8:$addr),
1018 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1019 "ldrsh", "\t$dst, $addr!", "$addr.base = $base_wb",
1021 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1022 (ins GPR:$base, t2am_imm8_offset:$offset),
1023 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1024 "ldrsh", "\t$dst, [$base], $offset", "$base = $base_wb",
1028 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1029 // for disassembly only.
1030 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1031 class T2IldT<bit signed, bits<2> type, string opc>
1032 : T2Ii8<(outs GPR:$dst), (ins t2addrmode_imm8:$addr), IIC_iLoadi, opc,
1033 "\t$dst, $addr", []> {
1034 let Inst{31-27} = 0b11111;
1035 let Inst{26-25} = 0b00;
1036 let Inst{24} = signed;
1038 let Inst{22-21} = type;
1039 let Inst{20} = 1; // load
1041 let Inst{10-8} = 0b110; // PUW.
1044 def t2LDRT : T2IldT<0, 0b10, "ldrt">;
1045 def t2LDRBT : T2IldT<0, 0b00, "ldrbt">;
1046 def t2LDRHT : T2IldT<0, 0b01, "ldrht">;
1047 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt">;
1048 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht">;
1051 defm t2STR :T2I_st<0b10,"str", BinOpFrag<(store node:$LHS, node:$RHS)>>;
1052 defm t2STRB:T2I_st<0b00,"strb",BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1053 defm t2STRH:T2I_st<0b01,"strh",BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1056 let mayLoad = 1, hasExtraSrcRegAllocReq = 1 in
1057 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1058 (ins GPR:$src1, GPR:$src2, t2addrmode_imm8s4:$addr),
1059 IIC_iStorer, "strd", "\t$src1, $addr", []>;
1062 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1063 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1064 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1065 "str", "\t$src, [$base, $offset]!", "$base = $base_wb",
1067 (pre_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1069 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1070 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1071 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1072 "str", "\t$src, [$base], $offset", "$base = $base_wb",
1074 (post_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1076 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1077 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1078 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1079 "strh", "\t$src, [$base, $offset]!", "$base = $base_wb",
1081 (pre_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1083 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1084 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1085 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1086 "strh", "\t$src, [$base], $offset", "$base = $base_wb",
1088 (post_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1090 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1091 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1092 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1093 "strb", "\t$src, [$base, $offset]!", "$base = $base_wb",
1095 (pre_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1097 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1098 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1099 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1100 "strb", "\t$src, [$base], $offset", "$base = $base_wb",
1102 (post_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1104 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1106 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1107 class T2IstT<bits<2> type, string opc>
1108 : T2Ii8<(outs GPR:$src), (ins t2addrmode_imm8:$addr), IIC_iStorei, opc,
1109 "\t$src, $addr", []> {
1110 let Inst{31-27} = 0b11111;
1111 let Inst{26-25} = 0b00;
1112 let Inst{24} = 0; // not signed
1114 let Inst{22-21} = type;
1115 let Inst{20} = 0; // store
1117 let Inst{10-8} = 0b110; // PUW
1120 def t2STRT : T2IstT<0b10, "strt">;
1121 def t2STRBT : T2IstT<0b00, "strbt">;
1122 def t2STRHT : T2IstT<0b01, "strht">;
1124 // ldrd / strd pre / post variants
1125 // For disassembly only.
1127 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1128 (ins GPR:$base, t2am_imm8s4_offset:$imm), NoItinerary,
1129 "ldrd", "\t$dst1, $dst2, [$base, $imm]!", []>;
1131 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1132 (ins GPR:$base, t2am_imm8s4_offset:$imm), NoItinerary,
1133 "ldrd", "\t$dst1, $dst2, [$base], $imm", []>;
1135 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1136 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1137 NoItinerary, "strd", "\t$src1, $src2, [$base, $imm]!", []>;
1139 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1140 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1141 NoItinerary, "strd", "\t$src1, $src2, [$base], $imm", []>;
1143 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1144 // data/instruction access. These are for disassembly only.
1146 // A8.6.117, A8.6.118. Different instructions are generated for #0 and #-0.
1147 // The neg_zero operand translates -0 to -1, -1 to -2, ..., etc.
1148 multiclass T2Ipl<bit instr, bit write, string opc> {
1150 def i12 : T2I<(outs), (ins GPR:$base, i32imm:$imm), IIC_iLoadi, opc,
1151 "\t[$base, $imm]", []> {
1152 let Inst{31-25} = 0b1111100;
1153 let Inst{24} = instr;
1154 let Inst{23} = 1; // U = 1
1156 let Inst{21} = write;
1158 let Inst{15-12} = 0b1111;
1161 def i8 : T2I<(outs), (ins GPR:$base, neg_zero:$imm), IIC_iLoadi, opc,
1162 "\t[$base, $imm]", []> {
1163 let Inst{31-25} = 0b1111100;
1164 let Inst{24} = instr;
1165 let Inst{23} = 0; // U = 0
1167 let Inst{21} = write;
1169 let Inst{15-12} = 0b1111;
1170 let Inst{11-8} = 0b1100;
1173 def pci : T2I<(outs), (ins GPR:$base, neg_zero:$imm), IIC_iLoadi, opc,
1174 "\t[pc, $imm]", []> {
1175 let Inst{31-25} = 0b1111100;
1176 let Inst{24} = instr;
1177 let Inst{23} = ?; // add = (U == 1)
1179 let Inst{21} = write;
1181 let Inst{19-16} = 0b1111; // Rn = 0b1111
1182 let Inst{15-12} = 0b1111;
1185 def r : T2I<(outs), (ins GPR:$base, GPR:$a), IIC_iLoadi, opc,
1186 "\t[$base, $a]", []> {
1187 let Inst{31-25} = 0b1111100;
1188 let Inst{24} = instr;
1189 let Inst{23} = 0; // add = TRUE for T1
1191 let Inst{21} = write;
1193 let Inst{15-12} = 0b1111;
1194 let Inst{11-6} = 0000000;
1195 let Inst{5-4} = 0b00; // no shift is applied
1198 def s : T2I<(outs), (ins GPR:$base, GPR:$a, i32imm:$shamt), IIC_iLoadi, opc,
1199 "\t[$base, $a, lsl $shamt]", []> {
1200 let Inst{31-25} = 0b1111100;
1201 let Inst{24} = instr;
1202 let Inst{23} = 0; // add = TRUE for T1
1204 let Inst{21} = write;
1206 let Inst{15-12} = 0b1111;
1207 let Inst{11-6} = 0000000;
1211 defm t2PLD : T2Ipl<0, 0, "pld">;
1212 defm t2PLDW : T2Ipl<0, 1, "pldw">;
1213 defm t2PLI : T2Ipl<1, 0, "pli">;
1215 //===----------------------------------------------------------------------===//
1216 // Load / store multiple Instructions.
1219 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in {
1220 def t2LDM : T2XI<(outs), (ins addrmode4:$addr, pred:$p,
1221 reglist:$dsts, variable_ops), IIC_iLoadm,
1222 "ldm${addr:submode}${p}${addr:wide}\t$addr, $dsts", []> {
1223 let Inst{31-27} = 0b11101;
1224 let Inst{26-25} = 0b00;
1225 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1227 let Inst{21} = 0; // The W bit.
1228 let Inst{20} = 1; // Load
1231 def t2LDM_UPD : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
1232 reglist:$dsts, variable_ops), IIC_iLoadm,
1233 "ldm${addr:submode}${p}${addr:wide}\t$addr!, $dsts",
1234 "$addr.addr = $wb", []> {
1235 let Inst{31-27} = 0b11101;
1236 let Inst{26-25} = 0b00;
1237 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1239 let Inst{21} = 1; // The W bit.
1240 let Inst{20} = 1; // Load
1242 } // mayLoad, hasExtraDefRegAllocReq
1244 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in {
1245 def t2STM : T2XI<(outs), (ins addrmode4:$addr, pred:$p,
1246 reglist:$srcs, variable_ops), IIC_iStorem,
1247 "stm${addr:submode}${p}${addr:wide}\t$addr, $srcs", []> {
1248 let Inst{31-27} = 0b11101;
1249 let Inst{26-25} = 0b00;
1250 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1252 let Inst{21} = 0; // The W bit.
1253 let Inst{20} = 0; // Store
1256 def t2STM_UPD : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
1257 reglist:$srcs, variable_ops),
1259 "stm${addr:submode}${p}${addr:wide}\t$addr!, $srcs",
1260 "$addr.addr = $wb", []> {
1261 let Inst{31-27} = 0b11101;
1262 let Inst{26-25} = 0b00;
1263 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1265 let Inst{21} = 1; // The W bit.
1266 let Inst{20} = 0; // Store
1268 } // mayStore, hasExtraSrcRegAllocReq
1270 //===----------------------------------------------------------------------===//
1271 // Move Instructions.
1274 let neverHasSideEffects = 1 in
1275 def t2MOVr : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
1276 "mov", ".w\t$dst, $src", []> {
1277 let Inst{31-27} = 0b11101;
1278 let Inst{26-25} = 0b01;
1279 let Inst{24-21} = 0b0010;
1280 let Inst{20} = ?; // The S bit.
1281 let Inst{19-16} = 0b1111; // Rn
1282 let Inst{14-12} = 0b000;
1283 let Inst{7-4} = 0b0000;
1286 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1287 let isReMaterializable = 1, isAsCheapAsAMove = 1, AddedComplexity = 1 in
1288 def t2MOVi : T2sI<(outs GPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
1289 "mov", ".w\t$dst, $src",
1290 [(set GPR:$dst, t2_so_imm:$src)]> {
1291 let Inst{31-27} = 0b11110;
1293 let Inst{24-21} = 0b0010;
1294 let Inst{20} = ?; // The S bit.
1295 let Inst{19-16} = 0b1111; // Rn
1299 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
1300 def t2MOVi16 : T2I<(outs GPR:$dst), (ins i32imm:$src), IIC_iMOVi,
1301 "movw", "\t$dst, $src",
1302 [(set GPR:$dst, imm0_65535:$src)]> {
1303 let Inst{31-27} = 0b11110;
1305 let Inst{24-21} = 0b0010;
1306 let Inst{20} = 0; // The S bit.
1310 let Constraints = "$src = $dst" in
1311 def t2MOVTi16 : T2I<(outs GPR:$dst), (ins GPR:$src, i32imm:$imm), IIC_iMOVi,
1312 "movt", "\t$dst, $imm",
1314 (or (and GPR:$src, 0xffff), lo16AllZero:$imm))]> {
1315 let Inst{31-27} = 0b11110;
1317 let Inst{24-21} = 0b0110;
1318 let Inst{20} = 0; // The S bit.
1322 def : T2Pat<(or GPR:$src, 0xffff0000), (t2MOVTi16 GPR:$src, 0xffff)>;
1324 //===----------------------------------------------------------------------===//
1325 // Extend Instructions.
1330 defm t2SXTB : T2I_unary_rrot<0b100, "sxtb",
1331 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1332 defm t2SXTH : T2I_unary_rrot<0b000, "sxth",
1333 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1334 defm t2SXTB16 : T2I_unary_rrot_DO<0b010, "sxtb16">;
1336 defm t2SXTAB : T2I_bin_rrot<0b100, "sxtab",
1337 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1338 defm t2SXTAH : T2I_bin_rrot<0b000, "sxtah",
1339 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1340 defm t2SXTAB16 : T2I_bin_rrot_DO<0b010, "sxtab16">;
1342 // TODO: SXT(A){B|H}16 - done for disassembly only
1346 let AddedComplexity = 16 in {
1347 defm t2UXTB : T2I_unary_rrot<0b101, "uxtb",
1348 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1349 defm t2UXTH : T2I_unary_rrot<0b001, "uxth",
1350 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1351 defm t2UXTB16 : T2I_unary_rrot_nw<0b011, "uxtb16",
1352 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1354 def : T2Pat<(and (shl GPR:$Src, (i32 8)), 0xFF00FF),
1355 (t2UXTB16r_rot GPR:$Src, 24)>;
1356 def : T2Pat<(and (srl GPR:$Src, (i32 8)), 0xFF00FF),
1357 (t2UXTB16r_rot GPR:$Src, 8)>;
1359 defm t2UXTAB : T2I_bin_rrot<0b101, "uxtab",
1360 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1361 defm t2UXTAH : T2I_bin_rrot<0b001, "uxtah",
1362 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1363 defm t2UXTAB16 : T2I_bin_rrot_DO<0b011, "uxtab16">;
1366 //===----------------------------------------------------------------------===//
1367 // Arithmetic Instructions.
1370 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1371 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1372 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1373 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1375 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1376 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1377 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1378 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1379 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1381 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1382 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1383 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1384 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1385 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1386 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1387 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1388 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1391 defm t2RSB : T2I_rbin_is <0b1110, "rsb",
1392 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1393 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1394 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1396 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1397 let AddedComplexity = 1 in
1398 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1399 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1400 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1401 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1402 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1403 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1405 // Select Bytes -- for disassembly only
1407 def t2SEL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, "sel",
1408 "\t$dst, $a, $b", []> {
1409 let Inst{31-27} = 0b11111;
1410 let Inst{26-24} = 0b010;
1412 let Inst{22-20} = 0b010;
1413 let Inst{15-12} = 0b1111;
1415 let Inst{6-4} = 0b000;
1418 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1419 // And Miscellaneous operations -- for disassembly only
1420 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc>
1421 : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, opc,
1422 "\t$dst, $a, $b", [/* For disassembly only; pattern left blank */]> {
1423 let Inst{31-27} = 0b11111;
1424 let Inst{26-23} = 0b0101;
1425 let Inst{22-20} = op22_20;
1426 let Inst{15-12} = 0b1111;
1427 let Inst{7-4} = op7_4;
1430 // Saturating add/subtract -- for disassembly only
1432 def t2QADD : T2I_pam<0b000, 0b1000, "qadd">;
1433 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1434 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1435 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1436 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1437 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1438 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1439 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub">;
1440 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1441 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1442 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1443 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1444 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1445 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1446 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1447 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1449 // Signed/Unsigned add/subtract -- for disassembly only
1451 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1452 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1453 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1454 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1455 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1456 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1457 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1458 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1459 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1460 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1461 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1462 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1464 // Signed/Unsigned halving add/subtract -- for disassembly only
1466 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1467 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1468 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1469 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1470 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1471 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1472 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1473 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1474 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1475 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1476 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1477 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1479 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1481 def t2USAD8 : T2I_mac<0, 0b111, 0b0000, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1482 NoItinerary, "usad8", "\t$dst, $a, $b", []> {
1483 let Inst{15-12} = 0b1111;
1485 def t2USADA8 : T2I_mac<0, 0b111, 0b0000, (outs GPR:$dst),
1486 (ins GPR:$a, GPR:$b, GPR:$acc), NoItinerary, "usada8",
1487 "\t$dst, $a, $b, $acc", []>;
1489 // Signed/Unsigned saturate -- for disassembly only
1491 def t2SSATlsl : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos,GPR:$a,i32imm:$shamt),
1492 NoItinerary, "ssat", "\t$dst, $bit_pos, $a, lsl $shamt",
1493 [/* For disassembly only; pattern left blank */]> {
1494 let Inst{31-27} = 0b11110;
1495 let Inst{25-22} = 0b1100;
1498 let Inst{21} = 0; // sh = '0'
1501 def t2SSATasr : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos,GPR:$a,i32imm:$shamt),
1502 NoItinerary, "ssat", "\t$dst, $bit_pos, $a, asr $shamt",
1503 [/* For disassembly only; pattern left blank */]> {
1504 let Inst{31-27} = 0b11110;
1505 let Inst{25-22} = 0b1100;
1508 let Inst{21} = 1; // sh = '1'
1511 def t2SSAT16 : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos, GPR:$a), NoItinerary,
1512 "ssat16", "\t$dst, $bit_pos, $a",
1513 [/* For disassembly only; pattern left blank */]> {
1514 let Inst{31-27} = 0b11110;
1515 let Inst{25-22} = 0b1100;
1518 let Inst{21} = 1; // sh = '1'
1519 let Inst{14-12} = 0b000; // imm3 = '000'
1520 let Inst{7-6} = 0b00; // imm2 = '00'
1523 def t2USATlsl : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos,GPR:$a,i32imm:$shamt),
1524 NoItinerary, "usat", "\t$dst, $bit_pos, $a, lsl $shamt",
1525 [/* For disassembly only; pattern left blank */]> {
1526 let Inst{31-27} = 0b11110;
1527 let Inst{25-22} = 0b1110;
1530 let Inst{21} = 0; // sh = '0'
1533 def t2USATasr : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos,GPR:$a,i32imm:$shamt),
1534 NoItinerary, "usat", "\t$dst, $bit_pos, $a, asr $shamt",
1535 [/* For disassembly only; pattern left blank */]> {
1536 let Inst{31-27} = 0b11110;
1537 let Inst{25-22} = 0b1110;
1540 let Inst{21} = 1; // sh = '1'
1543 def t2USAT16 : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos, GPR:$a), NoItinerary,
1544 "usat16", "\t$dst, $bit_pos, $a",
1545 [/* For disassembly only; pattern left blank */]> {
1546 let Inst{31-27} = 0b11110;
1547 let Inst{25-22} = 0b1110;
1550 let Inst{21} = 1; // sh = '1'
1551 let Inst{14-12} = 0b000; // imm3 = '000'
1552 let Inst{7-6} = 0b00; // imm2 = '00'
1555 //===----------------------------------------------------------------------===//
1556 // Shift and rotate Instructions.
1559 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
1560 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
1561 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
1562 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
1564 let Uses = [CPSR] in {
1565 def t2MOVrx : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
1566 "rrx", "\t$dst, $src",
1567 [(set GPR:$dst, (ARMrrx GPR:$src))]> {
1568 let Inst{31-27} = 0b11101;
1569 let Inst{26-25} = 0b01;
1570 let Inst{24-21} = 0b0010;
1571 let Inst{20} = ?; // The S bit.
1572 let Inst{19-16} = 0b1111; // Rn
1573 let Inst{14-12} = 0b000;
1574 let Inst{7-4} = 0b0011;
1578 let Defs = [CPSR] in {
1579 def t2MOVsrl_flag : T2XI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
1580 "lsrs.w\t$dst, $src, #1",
1581 [(set GPR:$dst, (ARMsrl_flag GPR:$src))]> {
1582 let Inst{31-27} = 0b11101;
1583 let Inst{26-25} = 0b01;
1584 let Inst{24-21} = 0b0010;
1585 let Inst{20} = 1; // The S bit.
1586 let Inst{19-16} = 0b1111; // Rn
1587 let Inst{5-4} = 0b01; // Shift type.
1588 // Shift amount = Inst{14-12:7-6} = 1.
1589 let Inst{14-12} = 0b000;
1590 let Inst{7-6} = 0b01;
1592 def t2MOVsra_flag : T2XI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
1593 "asrs.w\t$dst, $src, #1",
1594 [(set GPR:$dst, (ARMsra_flag GPR:$src))]> {
1595 let Inst{31-27} = 0b11101;
1596 let Inst{26-25} = 0b01;
1597 let Inst{24-21} = 0b0010;
1598 let Inst{20} = 1; // The S bit.
1599 let Inst{19-16} = 0b1111; // Rn
1600 let Inst{5-4} = 0b10; // Shift type.
1601 // Shift amount = Inst{14-12:7-6} = 1.
1602 let Inst{14-12} = 0b000;
1603 let Inst{7-6} = 0b01;
1607 //===----------------------------------------------------------------------===//
1608 // Bitwise Instructions.
1611 defm t2AND : T2I_bin_w_irs<0b0000, "and",
1612 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
1613 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
1614 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
1615 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
1616 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
1618 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
1619 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
1621 let Constraints = "$src = $dst" in
1622 def t2BFC : T2I<(outs GPR:$dst), (ins GPR:$src, bf_inv_mask_imm:$imm),
1623 IIC_iUNAsi, "bfc", "\t$dst, $imm",
1624 [(set GPR:$dst, (and GPR:$src, bf_inv_mask_imm:$imm))]> {
1625 let Inst{31-27} = 0b11110;
1627 let Inst{24-20} = 0b10110;
1628 let Inst{19-16} = 0b1111; // Rn
1632 def t2SBFX : T2I<(outs GPR:$dst), (ins GPR:$src, imm0_31:$lsb, imm0_31:$width),
1633 IIC_iALUi, "sbfx", "\t$dst, $src, $lsb, $width", []> {
1634 let Inst{31-27} = 0b11110;
1636 let Inst{24-20} = 0b10100;
1640 def t2UBFX : T2I<(outs GPR:$dst), (ins GPR:$src, imm0_31:$lsb, imm0_31:$width),
1641 IIC_iALUi, "ubfx", "\t$dst, $src, $lsb, $width", []> {
1642 let Inst{31-27} = 0b11110;
1644 let Inst{24-20} = 0b11100;
1648 // A8.6.18 BFI - Bitfield insert (Encoding T1)
1649 // Added for disassembler with the pattern field purposely left blank.
1650 // FIXME: Utilize this instruction in codgen.
1651 def t2BFI : T2I<(outs GPR:$dst), (ins GPR:$src, imm0_31:$lsb, imm0_31:$width),
1652 IIC_iALUi, "bfi", "\t$dst, $src, $lsb, $width", []> {
1653 let Inst{31-27} = 0b11110;
1655 let Inst{24-20} = 0b10110;
1659 defm t2ORN : T2I_bin_irs<0b0011, "orn", BinOpFrag<(or node:$LHS,
1662 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
1663 let AddedComplexity = 1 in
1664 defm t2MVN : T2I_un_irs <0b0011, "mvn", UnOpFrag<(not node:$Src)>, 1, 1>;
1667 def : T2Pat<(and GPR:$src, t2_so_imm_not:$imm),
1668 (t2BICri GPR:$src, t2_so_imm_not:$imm)>;
1670 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
1671 def : T2Pat<(or GPR:$src, t2_so_imm_not:$imm),
1672 (t2ORNri GPR:$src, t2_so_imm_not:$imm)>,
1673 Requires<[IsThumb2]>;
1675 def : T2Pat<(t2_so_imm_not:$src),
1676 (t2MVNi t2_so_imm_not:$src)>;
1678 //===----------------------------------------------------------------------===//
1679 // Multiply Instructions.
1681 let isCommutable = 1 in
1682 def t2MUL: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1683 "mul", "\t$dst, $a, $b",
1684 [(set GPR:$dst, (mul GPR:$a, GPR:$b))]> {
1685 let Inst{31-27} = 0b11111;
1686 let Inst{26-23} = 0b0110;
1687 let Inst{22-20} = 0b000;
1688 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1689 let Inst{7-4} = 0b0000; // Multiply
1692 def t2MLA: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1693 "mla", "\t$dst, $a, $b, $c",
1694 [(set GPR:$dst, (add (mul GPR:$a, GPR:$b), GPR:$c))]> {
1695 let Inst{31-27} = 0b11111;
1696 let Inst{26-23} = 0b0110;
1697 let Inst{22-20} = 0b000;
1698 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1699 let Inst{7-4} = 0b0000; // Multiply
1702 def t2MLS: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1703 "mls", "\t$dst, $a, $b, $c",
1704 [(set GPR:$dst, (sub GPR:$c, (mul GPR:$a, GPR:$b)))]> {
1705 let Inst{31-27} = 0b11111;
1706 let Inst{26-23} = 0b0110;
1707 let Inst{22-20} = 0b000;
1708 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1709 let Inst{7-4} = 0b0001; // Multiply and Subtract
1712 // Extra precision multiplies with low / high results
1713 let neverHasSideEffects = 1 in {
1714 let isCommutable = 1 in {
1715 def t2SMULL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMUL64,
1716 "smull", "\t$ldst, $hdst, $a, $b", []> {
1717 let Inst{31-27} = 0b11111;
1718 let Inst{26-23} = 0b0111;
1719 let Inst{22-20} = 0b000;
1720 let Inst{7-4} = 0b0000;
1723 def t2UMULL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMUL64,
1724 "umull", "\t$ldst, $hdst, $a, $b", []> {
1725 let Inst{31-27} = 0b11111;
1726 let Inst{26-23} = 0b0111;
1727 let Inst{22-20} = 0b010;
1728 let Inst{7-4} = 0b0000;
1732 // Multiply + accumulate
1733 def t2SMLAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMAC64,
1734 "smlal", "\t$ldst, $hdst, $a, $b", []>{
1735 let Inst{31-27} = 0b11111;
1736 let Inst{26-23} = 0b0111;
1737 let Inst{22-20} = 0b100;
1738 let Inst{7-4} = 0b0000;
1741 def t2UMLAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMAC64,
1742 "umlal", "\t$ldst, $hdst, $a, $b", []>{
1743 let Inst{31-27} = 0b11111;
1744 let Inst{26-23} = 0b0111;
1745 let Inst{22-20} = 0b110;
1746 let Inst{7-4} = 0b0000;
1749 def t2UMAAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMAC64,
1750 "umaal", "\t$ldst, $hdst, $a, $b", []>{
1751 let Inst{31-27} = 0b11111;
1752 let Inst{26-23} = 0b0111;
1753 let Inst{22-20} = 0b110;
1754 let Inst{7-4} = 0b0110;
1756 } // neverHasSideEffects
1758 // Rounding variants of the below included for disassembly only
1760 // Most significant word multiply
1761 def t2SMMUL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1762 "smmul", "\t$dst, $a, $b",
1763 [(set GPR:$dst, (mulhs GPR:$a, GPR:$b))]> {
1764 let Inst{31-27} = 0b11111;
1765 let Inst{26-23} = 0b0110;
1766 let Inst{22-20} = 0b101;
1767 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1768 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1771 def t2SMMULR : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1772 "smmulr", "\t$dst, $a, $b", []> {
1773 let Inst{31-27} = 0b11111;
1774 let Inst{26-23} = 0b0110;
1775 let Inst{22-20} = 0b101;
1776 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1777 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1780 def t2SMMLA : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1781 "smmla", "\t$dst, $a, $b, $c",
1782 [(set GPR:$dst, (add (mulhs GPR:$a, GPR:$b), GPR:$c))]> {
1783 let Inst{31-27} = 0b11111;
1784 let Inst{26-23} = 0b0110;
1785 let Inst{22-20} = 0b101;
1786 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1787 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1790 def t2SMMLAR : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1791 "smmlar", "\t$dst, $a, $b, $c", []> {
1792 let Inst{31-27} = 0b11111;
1793 let Inst{26-23} = 0b0110;
1794 let Inst{22-20} = 0b101;
1795 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1796 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1799 def t2SMMLS : T2I <(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1800 "smmls", "\t$dst, $a, $b, $c",
1801 [(set GPR:$dst, (sub GPR:$c, (mulhs GPR:$a, GPR:$b)))]> {
1802 let Inst{31-27} = 0b11111;
1803 let Inst{26-23} = 0b0110;
1804 let Inst{22-20} = 0b110;
1805 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1806 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1809 def t2SMMLSR : T2I <(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1810 "smmlsr", "\t$dst, $a, $b, $c", []> {
1811 let Inst{31-27} = 0b11111;
1812 let Inst{26-23} = 0b0110;
1813 let Inst{22-20} = 0b110;
1814 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1815 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1818 multiclass T2I_smul<string opc, PatFrag opnode> {
1819 def BB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1820 !strconcat(opc, "bb"), "\t$dst, $a, $b",
1821 [(set GPR:$dst, (opnode (sext_inreg GPR:$a, i16),
1822 (sext_inreg GPR:$b, i16)))]> {
1823 let Inst{31-27} = 0b11111;
1824 let Inst{26-23} = 0b0110;
1825 let Inst{22-20} = 0b001;
1826 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1827 let Inst{7-6} = 0b00;
1828 let Inst{5-4} = 0b00;
1831 def BT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1832 !strconcat(opc, "bt"), "\t$dst, $a, $b",
1833 [(set GPR:$dst, (opnode (sext_inreg GPR:$a, i16),
1834 (sra GPR:$b, (i32 16))))]> {
1835 let Inst{31-27} = 0b11111;
1836 let Inst{26-23} = 0b0110;
1837 let Inst{22-20} = 0b001;
1838 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1839 let Inst{7-6} = 0b00;
1840 let Inst{5-4} = 0b01;
1843 def TB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1844 !strconcat(opc, "tb"), "\t$dst, $a, $b",
1845 [(set GPR:$dst, (opnode (sra GPR:$a, (i32 16)),
1846 (sext_inreg GPR:$b, i16)))]> {
1847 let Inst{31-27} = 0b11111;
1848 let Inst{26-23} = 0b0110;
1849 let Inst{22-20} = 0b001;
1850 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1851 let Inst{7-6} = 0b00;
1852 let Inst{5-4} = 0b10;
1855 def TT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1856 !strconcat(opc, "tt"), "\t$dst, $a, $b",
1857 [(set GPR:$dst, (opnode (sra GPR:$a, (i32 16)),
1858 (sra GPR:$b, (i32 16))))]> {
1859 let Inst{31-27} = 0b11111;
1860 let Inst{26-23} = 0b0110;
1861 let Inst{22-20} = 0b001;
1862 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1863 let Inst{7-6} = 0b00;
1864 let Inst{5-4} = 0b11;
1867 def WB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL16,
1868 !strconcat(opc, "wb"), "\t$dst, $a, $b",
1869 [(set GPR:$dst, (sra (opnode GPR:$a,
1870 (sext_inreg GPR:$b, i16)), (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} = 0b1111; // Ra = 0b1111 (no accumulate)
1875 let Inst{7-6} = 0b00;
1876 let Inst{5-4} = 0b00;
1879 def WT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL16,
1880 !strconcat(opc, "wt"), "\t$dst, $a, $b",
1881 [(set GPR:$dst, (sra (opnode GPR:$a,
1882 (sra GPR:$b, (i32 16))), (i32 16)))]> {
1883 let Inst{31-27} = 0b11111;
1884 let Inst{26-23} = 0b0110;
1885 let Inst{22-20} = 0b011;
1886 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1887 let Inst{7-6} = 0b00;
1888 let Inst{5-4} = 0b01;
1893 multiclass T2I_smla<string opc, PatFrag opnode> {
1894 def BB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1895 !strconcat(opc, "bb"), "\t$dst, $a, $b, $acc",
1896 [(set GPR:$dst, (add GPR:$acc,
1897 (opnode (sext_inreg GPR:$a, i16),
1898 (sext_inreg GPR:$b, i16))))]> {
1899 let Inst{31-27} = 0b11111;
1900 let Inst{26-23} = 0b0110;
1901 let Inst{22-20} = 0b001;
1902 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1903 let Inst{7-6} = 0b00;
1904 let Inst{5-4} = 0b00;
1907 def BT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1908 !strconcat(opc, "bt"), "\t$dst, $a, $b, $acc",
1909 [(set GPR:$dst, (add GPR:$acc, (opnode (sext_inreg GPR:$a, i16),
1910 (sra GPR:$b, (i32 16)))))]> {
1911 let Inst{31-27} = 0b11111;
1912 let Inst{26-23} = 0b0110;
1913 let Inst{22-20} = 0b001;
1914 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1915 let Inst{7-6} = 0b00;
1916 let Inst{5-4} = 0b01;
1919 def TB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1920 !strconcat(opc, "tb"), "\t$dst, $a, $b, $acc",
1921 [(set GPR:$dst, (add GPR:$acc, (opnode (sra GPR:$a, (i32 16)),
1922 (sext_inreg GPR:$b, i16))))]> {
1923 let Inst{31-27} = 0b11111;
1924 let Inst{26-23} = 0b0110;
1925 let Inst{22-20} = 0b001;
1926 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1927 let Inst{7-6} = 0b00;
1928 let Inst{5-4} = 0b10;
1931 def TT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1932 !strconcat(opc, "tt"), "\t$dst, $a, $b, $acc",
1933 [(set GPR:$dst, (add GPR:$acc, (opnode (sra GPR:$a, (i32 16)),
1934 (sra GPR:$b, (i32 16)))))]> {
1935 let Inst{31-27} = 0b11111;
1936 let Inst{26-23} = 0b0110;
1937 let Inst{22-20} = 0b001;
1938 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1939 let Inst{7-6} = 0b00;
1940 let Inst{5-4} = 0b11;
1943 def WB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1944 !strconcat(opc, "wb"), "\t$dst, $a, $b, $acc",
1945 [(set GPR:$dst, (add GPR:$acc, (sra (opnode GPR:$a,
1946 (sext_inreg GPR:$b, i16)), (i32 16))))]> {
1947 let Inst{31-27} = 0b11111;
1948 let Inst{26-23} = 0b0110;
1949 let Inst{22-20} = 0b011;
1950 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1951 let Inst{7-6} = 0b00;
1952 let Inst{5-4} = 0b00;
1955 def WT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1956 !strconcat(opc, "wt"), "\t$dst, $a, $b, $acc",
1957 [(set GPR:$dst, (add GPR:$acc, (sra (opnode GPR:$a,
1958 (sra GPR:$b, (i32 16))), (i32 16))))]> {
1959 let Inst{31-27} = 0b11111;
1960 let Inst{26-23} = 0b0110;
1961 let Inst{22-20} = 0b011;
1962 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1963 let Inst{7-6} = 0b00;
1964 let Inst{5-4} = 0b01;
1968 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
1969 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
1971 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
1972 def t2SMLALBB : T2I_mac<1, 0b100, 0b1000, (outs GPR:$ldst,GPR:$hdst),
1973 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlalbb", "\t$ldst, $hdst, $a, $b",
1974 [/* For disassembly only; pattern left blank */]>;
1975 def t2SMLALBT : T2I_mac<1, 0b100, 0b1001, (outs GPR:$ldst,GPR:$hdst),
1976 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlalbt", "\t$ldst, $hdst, $a, $b",
1977 [/* For disassembly only; pattern left blank */]>;
1978 def t2SMLALTB : T2I_mac<1, 0b100, 0b1010, (outs GPR:$ldst,GPR:$hdst),
1979 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlaltb", "\t$ldst, $hdst, $a, $b",
1980 [/* For disassembly only; pattern left blank */]>;
1981 def t2SMLALTT : T2I_mac<1, 0b100, 0b1011, (outs GPR:$ldst,GPR:$hdst),
1982 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlaltt", "\t$ldst, $hdst, $a, $b",
1983 [/* For disassembly only; pattern left blank */]>;
1985 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
1986 // These are for disassembly only.
1988 def t2SMUAD : T2I_mac<0, 0b010, 0b0000, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1989 IIC_iMAC32, "smuad", "\t$dst, $a, $b", []> {
1990 let Inst{15-12} = 0b1111;
1992 def t2SMUADX : T2I_mac<0, 0b010, 0b0001, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1993 IIC_iMAC32, "smuadx", "\t$dst, $a, $b", []> {
1994 let Inst{15-12} = 0b1111;
1996 def t2SMUSD : T2I_mac<0, 0b100, 0b0000, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1997 IIC_iMAC32, "smusd", "\t$dst, $a, $b", []> {
1998 let Inst{15-12} = 0b1111;
2000 def t2SMUSDX : T2I_mac<0, 0b100, 0b0001, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
2001 IIC_iMAC32, "smusdx", "\t$dst, $a, $b", []> {
2002 let Inst{15-12} = 0b1111;
2004 def t2SMLAD : T2I_mac<0, 0b010, 0b0000, (outs GPR:$dst),
2005 (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC32, "smlad",
2006 "\t$dst, $a, $b, $acc", []>;
2007 def t2SMLADX : T2I_mac<0, 0b010, 0b0001, (outs GPR:$dst),
2008 (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC32, "smladx",
2009 "\t$dst, $a, $b, $acc", []>;
2010 def t2SMLSD : T2I_mac<0, 0b100, 0b0000, (outs GPR:$dst),
2011 (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC32, "smlsd",
2012 "\t$dst, $a, $b, $acc", []>;
2013 def t2SMLSDX : T2I_mac<0, 0b100, 0b0001, (outs GPR:$dst),
2014 (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC32, "smlsdx",
2015 "\t$dst, $a, $b, $acc", []>;
2016 def t2SMLALD : T2I_mac<1, 0b100, 0b1100, (outs GPR:$ldst,GPR:$hdst),
2017 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlald",
2018 "\t$ldst, $hdst, $a, $b", []>;
2019 def t2SMLALDX : T2I_mac<1, 0b100, 0b1101, (outs GPR:$ldst,GPR:$hdst),
2020 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlaldx",
2021 "\t$ldst, $hdst, $a, $b", []>;
2022 def t2SMLSLD : T2I_mac<1, 0b101, 0b1100, (outs GPR:$ldst,GPR:$hdst),
2023 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlsld",
2024 "\t$ldst, $hdst, $a, $b", []>;
2025 def t2SMLSLDX : T2I_mac<1, 0b101, 0b1101, (outs GPR:$ldst,GPR:$hdst),
2026 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlsldx",
2027 "\t$ldst, $hdst, $a, $b", []>;
2029 //===----------------------------------------------------------------------===//
2030 // Misc. Arithmetic Instructions.
2033 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2034 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2035 : T2I<oops, iops, itin, opc, asm, pattern> {
2036 let Inst{31-27} = 0b11111;
2037 let Inst{26-22} = 0b01010;
2038 let Inst{21-20} = op1;
2039 let Inst{15-12} = 0b1111;
2040 let Inst{7-6} = 0b10;
2041 let Inst{5-4} = op2;
2044 def t2CLZ : T2I_misc<0b11, 0b00, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
2045 "clz", "\t$dst, $src", [(set GPR:$dst, (ctlz GPR:$src))]>;
2047 def t2RBIT : T2I_misc<0b01, 0b10, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
2048 "rbit", "\t$dst, $src",
2049 [(set GPR:$dst, (ARMrbit GPR:$src))]>;
2051 def t2REV : T2I_misc<0b01, 0b00, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
2052 "rev", ".w\t$dst, $src", [(set GPR:$dst, (bswap GPR:$src))]>;
2054 def t2REV16 : T2I_misc<0b01, 0b01, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
2055 "rev16", ".w\t$dst, $src",
2057 (or (and (srl GPR:$src, (i32 8)), 0xFF),
2058 (or (and (shl GPR:$src, (i32 8)), 0xFF00),
2059 (or (and (srl GPR:$src, (i32 8)), 0xFF0000),
2060 (and (shl GPR:$src, (i32 8)), 0xFF000000)))))]>;
2062 def t2REVSH : T2I_misc<0b01, 0b11, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
2063 "revsh", ".w\t$dst, $src",
2066 (or (srl (and GPR:$src, 0xFF00), (i32 8)),
2067 (shl GPR:$src, (i32 8))), i16))]>;
2069 def t2PKHBT : T2I<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2, i32imm:$shamt),
2070 IIC_iALUsi, "pkhbt", "\t$dst, $src1, $src2, lsl $shamt",
2071 [(set GPR:$dst, (or (and GPR:$src1, 0xFFFF),
2072 (and (shl GPR:$src2, (i32 imm:$shamt)),
2074 Requires<[HasT2ExtractPack]> {
2075 let Inst{31-27} = 0b11101;
2076 let Inst{26-25} = 0b01;
2077 let Inst{24-20} = 0b01100;
2078 let Inst{5} = 0; // BT form
2082 // Alternate cases for PKHBT where identities eliminate some nodes.
2083 def : T2Pat<(or (and GPR:$src1, 0xFFFF), (and GPR:$src2, 0xFFFF0000)),
2084 (t2PKHBT GPR:$src1, GPR:$src2, 0)>,
2085 Requires<[HasT2ExtractPack]>;
2086 def : T2Pat<(or (and GPR:$src1, 0xFFFF), (shl GPR:$src2, imm16_31:$shamt)),
2087 (t2PKHBT GPR:$src1, GPR:$src2, imm16_31:$shamt)>,
2088 Requires<[HasT2ExtractPack]>;
2090 def t2PKHTB : T2I<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2, i32imm:$shamt),
2091 IIC_iALUsi, "pkhtb", "\t$dst, $src1, $src2, asr $shamt",
2092 [(set GPR:$dst, (or (and GPR:$src1, 0xFFFF0000),
2093 (and (sra GPR:$src2, imm16_31:$shamt),
2095 Requires<[HasT2ExtractPack]> {
2096 let Inst{31-27} = 0b11101;
2097 let Inst{26-25} = 0b01;
2098 let Inst{24-20} = 0b01100;
2099 let Inst{5} = 1; // TB form
2103 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2104 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2105 def : T2Pat<(or (and GPR:$src1, 0xFFFF0000), (srl GPR:$src2, (i32 16))),
2106 (t2PKHTB GPR:$src1, GPR:$src2, 16)>,
2107 Requires<[HasT2ExtractPack]>;
2108 def : T2Pat<(or (and GPR:$src1, 0xFFFF0000),
2109 (and (srl GPR:$src2, imm1_15:$shamt), 0xFFFF)),
2110 (t2PKHTB GPR:$src1, GPR:$src2, imm1_15:$shamt)>,
2111 Requires<[HasT2ExtractPack]>;
2113 //===----------------------------------------------------------------------===//
2114 // Comparison Instructions...
2117 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2118 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2119 defm t2CMPz : T2I_cmp_irs<0b1101, "cmp",
2120 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
2122 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2123 // Compare-to-zero still works out, just not the relationals
2124 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2125 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2126 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2127 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2129 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2130 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2132 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2133 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2135 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2136 BinOpFrag<(ARMcmpZ (and node:$LHS, node:$RHS), 0)>>;
2137 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2138 BinOpFrag<(ARMcmpZ (xor node:$LHS, node:$RHS), 0)>>;
2140 // A8.6.27 CBNZ, CBZ - Compare and branch on (non)zero.
2141 // Short range conditional branch. Looks awesome for loops. Need to figure
2142 // out how to use this one.
2145 // Conditional moves
2146 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2147 // a two-value operand where a dag node expects two operands. :(
2148 let neverHasSideEffects = 1 in {
2149 def t2MOVCCr : T2I<(outs GPR:$dst), (ins GPR:$false, GPR:$true), IIC_iCMOVr,
2150 "mov", ".w\t$dst, $true",
2151 [/*(set GPR:$dst, (ARMcmov GPR:$false, GPR:$true, imm:$cc, CCR:$ccr))*/]>,
2152 RegConstraint<"$false = $dst"> {
2153 let Inst{31-27} = 0b11101;
2154 let Inst{26-25} = 0b01;
2155 let Inst{24-21} = 0b0010;
2156 let Inst{20} = 0; // The S bit.
2157 let Inst{19-16} = 0b1111; // Rn
2158 let Inst{14-12} = 0b000;
2159 let Inst{7-4} = 0b0000;
2162 def t2MOVCCi : T2I<(outs GPR:$dst), (ins GPR:$false, t2_so_imm:$true),
2163 IIC_iCMOVi, "mov", ".w\t$dst, $true",
2164 [/*(set GPR:$dst, (ARMcmov GPR:$false, t2_so_imm:$true, imm:$cc, CCR:$ccr))*/]>,
2165 RegConstraint<"$false = $dst"> {
2166 let Inst{31-27} = 0b11110;
2168 let Inst{24-21} = 0b0010;
2169 let Inst{20} = 0; // The S bit.
2170 let Inst{19-16} = 0b1111; // Rn
2174 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2175 string opc, string asm, list<dag> pattern>
2176 : T2I<oops, iops, itin, opc, asm, pattern> {
2177 let Inst{31-27} = 0b11101;
2178 let Inst{26-25} = 0b01;
2179 let Inst{24-21} = 0b0010;
2180 let Inst{20} = 0; // The S bit.
2181 let Inst{19-16} = 0b1111; // Rn
2182 let Inst{5-4} = opcod; // Shift type.
2184 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs GPR:$dst),
2185 (ins GPR:$false, GPR:$true, i32imm:$rhs),
2186 IIC_iCMOVsi, "lsl", ".w\t$dst, $true, $rhs", []>,
2187 RegConstraint<"$false = $dst">;
2188 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs GPR:$dst),
2189 (ins GPR:$false, GPR:$true, i32imm:$rhs),
2190 IIC_iCMOVsi, "lsr", ".w\t$dst, $true, $rhs", []>,
2191 RegConstraint<"$false = $dst">;
2192 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs GPR:$dst),
2193 (ins GPR:$false, GPR:$true, i32imm:$rhs),
2194 IIC_iCMOVsi, "asr", ".w\t$dst, $true, $rhs", []>,
2195 RegConstraint<"$false = $dst">;
2196 def t2MOVCCror : T2I_movcc_sh<0b11, (outs GPR:$dst),
2197 (ins GPR:$false, GPR:$true, i32imm:$rhs),
2198 IIC_iCMOVsi, "ror", ".w\t$dst, $true, $rhs", []>,
2199 RegConstraint<"$false = $dst">;
2200 } // neverHasSideEffects
2202 //===----------------------------------------------------------------------===//
2203 // Atomic operations intrinsics
2206 // memory barriers protect the atomic sequences
2207 let hasSideEffects = 1 in {
2208 def t2Int_MemBarrierV7 : AInoP<(outs), (ins),
2209 ThumbFrm, NoItinerary,
2211 [(ARMMemBarrierV7)]>,
2212 Requires<[IsThumb2]> {
2213 let Inst{31-4} = 0xF3BF8F5;
2214 // FIXME: add support for options other than a full system DMB
2215 let Inst{3-0} = 0b1111;
2218 def t2Int_SyncBarrierV7 : AInoP<(outs), (ins),
2219 ThumbFrm, NoItinerary,
2221 [(ARMSyncBarrierV7)]>,
2222 Requires<[IsThumb2]> {
2223 let Inst{31-4} = 0xF3BF8F4;
2224 // FIXME: add support for options other than a full system DSB
2225 let Inst{3-0} = 0b1111;
2229 // Helper class for multiclass T2MemB -- for disassembly only
2230 class T2I_memb<string opc, string asm>
2231 : T2I<(outs), (ins), NoItinerary, opc, asm,
2232 [/* For disassembly only; pattern left blank */]>,
2233 Requires<[IsThumb2, HasV7]> {
2234 let Inst{31-20} = 0xf3b;
2235 let Inst{15-14} = 0b10;
2239 multiclass T2MemB<bits<4> op7_4, string opc> {
2241 def st : T2I_memb<opc, "\tst"> {
2242 let Inst{7-4} = op7_4;
2243 let Inst{3-0} = 0b1110;
2246 def ish : T2I_memb<opc, "\tish"> {
2247 let Inst{7-4} = op7_4;
2248 let Inst{3-0} = 0b1011;
2251 def ishst : T2I_memb<opc, "\tishst"> {
2252 let Inst{7-4} = op7_4;
2253 let Inst{3-0} = 0b1010;
2256 def nsh : T2I_memb<opc, "\tnsh"> {
2257 let Inst{7-4} = op7_4;
2258 let Inst{3-0} = 0b0111;
2261 def nshst : T2I_memb<opc, "\tnshst"> {
2262 let Inst{7-4} = op7_4;
2263 let Inst{3-0} = 0b0110;
2266 def osh : T2I_memb<opc, "\tosh"> {
2267 let Inst{7-4} = op7_4;
2268 let Inst{3-0} = 0b0011;
2271 def oshst : T2I_memb<opc, "\toshst"> {
2272 let Inst{7-4} = op7_4;
2273 let Inst{3-0} = 0b0010;
2277 // These DMB variants are for disassembly only.
2278 defm t2DMB : T2MemB<0b0101, "dmb">;
2280 // These DSB variants are for disassembly only.
2281 defm t2DSB : T2MemB<0b0100, "dsb">;
2283 // ISB has only full system option -- for disassembly only
2284 def t2ISBsy : T2I_memb<"isb", ""> {
2285 let Inst{7-4} = 0b0110;
2286 let Inst{3-0} = 0b1111;
2289 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2290 InstrItinClass itin, string opc, string asm, string cstr,
2291 list<dag> pattern, bits<4> rt2 = 0b1111>
2292 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2293 let Inst{31-27} = 0b11101;
2294 let Inst{26-20} = 0b0001101;
2295 let Inst{11-8} = rt2;
2296 let Inst{7-6} = 0b01;
2297 let Inst{5-4} = opcod;
2298 let Inst{3-0} = 0b1111;
2300 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2301 InstrItinClass itin, string opc, string asm, string cstr,
2302 list<dag> pattern, bits<4> rt2 = 0b1111>
2303 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2304 let Inst{31-27} = 0b11101;
2305 let Inst{26-20} = 0b0001100;
2306 let Inst{11-8} = rt2;
2307 let Inst{7-6} = 0b01;
2308 let Inst{5-4} = opcod;
2311 let mayLoad = 1 in {
2312 def t2LDREXB : T2I_ldrex<0b00, (outs GPR:$dest), (ins GPR:$ptr), AddrModeNone,
2313 Size4Bytes, NoItinerary, "ldrexb", "\t$dest, [$ptr]",
2315 def t2LDREXH : T2I_ldrex<0b01, (outs GPR:$dest), (ins GPR:$ptr), AddrModeNone,
2316 Size4Bytes, NoItinerary, "ldrexh", "\t$dest, [$ptr]",
2318 def t2LDREX : Thumb2I<(outs GPR:$dest), (ins GPR:$ptr), AddrModeNone,
2319 Size4Bytes, NoItinerary,
2320 "ldrex", "\t$dest, [$ptr]", "",
2322 let Inst{31-27} = 0b11101;
2323 let Inst{26-20} = 0b0000101;
2324 let Inst{11-8} = 0b1111;
2325 let Inst{7-0} = 0b00000000; // imm8 = 0
2327 def t2LDREXD : T2I_ldrex<0b11, (outs GPR:$dest, GPR:$dest2), (ins GPR:$ptr),
2328 AddrModeNone, Size4Bytes, NoItinerary,
2329 "ldrexd", "\t$dest, $dest2, [$ptr]", "",
2333 let mayStore = 1, Constraints = "@earlyclobber $success" in {
2334 def t2STREXB : T2I_strex<0b00, (outs GPR:$success), (ins GPR:$src, GPR:$ptr),
2335 AddrModeNone, Size4Bytes, NoItinerary,
2336 "strexb", "\t$success, $src, [$ptr]", "", []>;
2337 def t2STREXH : T2I_strex<0b01, (outs GPR:$success), (ins GPR:$src, GPR:$ptr),
2338 AddrModeNone, Size4Bytes, NoItinerary,
2339 "strexh", "\t$success, $src, [$ptr]", "", []>;
2340 def t2STREX : Thumb2I<(outs GPR:$success), (ins GPR:$src, GPR:$ptr),
2341 AddrModeNone, Size4Bytes, NoItinerary,
2342 "strex", "\t$success, $src, [$ptr]", "",
2344 let Inst{31-27} = 0b11101;
2345 let Inst{26-20} = 0b0000100;
2346 let Inst{7-0} = 0b00000000; // imm8 = 0
2348 def t2STREXD : T2I_strex<0b11, (outs GPR:$success),
2349 (ins GPR:$src, GPR:$src2, GPR:$ptr),
2350 AddrModeNone, Size4Bytes, NoItinerary,
2351 "strexd", "\t$success, $src, $src2, [$ptr]", "", [],
2355 // Clear-Exclusive is for disassembly only.
2356 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2357 [/* For disassembly only; pattern left blank */]>,
2358 Requires<[IsARM, HasV7]> {
2359 let Inst{31-20} = 0xf3b;
2360 let Inst{15-14} = 0b10;
2362 let Inst{7-4} = 0b0010;
2365 //===----------------------------------------------------------------------===//
2369 // __aeabi_read_tp preserves the registers r1-r3.
2371 Defs = [R0, R12, LR, CPSR] in {
2372 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2373 "bl\t__aeabi_read_tp",
2374 [(set R0, ARMthread_pointer)]> {
2375 let Inst{31-27} = 0b11110;
2376 let Inst{15-14} = 0b11;
2381 //===----------------------------------------------------------------------===//
2382 // SJLJ Exception handling intrinsics
2383 // eh_sjlj_setjmp() is an instruction sequence to store the return
2384 // address and save #0 in R0 for the non-longjmp case.
2385 // Since by its nature we may be coming from some other function to get
2386 // here, and we're using the stack frame for the containing function to
2387 // save/restore registers, we can't keep anything live in regs across
2388 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2389 // when we get here from a longjmp(). We force everthing out of registers
2390 // except for our own input by listing the relevant registers in Defs. By
2391 // doing so, we also cause the prologue/epilogue code to actively preserve
2392 // all of the callee-saved resgisters, which is exactly what we want.
2393 // The current SP is passed in $val, and we reuse the reg as a scratch.
2395 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2396 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2397 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2399 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins GPR:$src, tGPR:$val),
2400 AddrModeNone, SizeSpecial, NoItinerary,
2401 "str\t$val, [$src, #8]\t${:comment} begin eh.setjmp\n"
2403 "\tadds\t$val, #9\n"
2404 "\tstr\t$val, [$src, #4]\n"
2407 "\tmovs\tr0, #1\t${:comment} end eh.setjmp\n"
2409 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, tGPR:$val))]>,
2410 Requires<[IsThumb2, HasVFP2]>;
2414 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ] in {
2415 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins GPR:$src, tGPR:$val),
2416 AddrModeNone, SizeSpecial, NoItinerary,
2417 "str\t$val, [$src, #8]\t${:comment} begin eh.setjmp\n"
2419 "\tadds\t$val, #9\n"
2420 "\tstr\t$val, [$src, #4]\n"
2423 "\tmovs\tr0, #1\t${:comment} end eh.setjmp\n"
2425 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, tGPR:$val))]>,
2426 Requires<[IsThumb2, NoVFP]>;
2430 //===----------------------------------------------------------------------===//
2431 // Control-Flow Instructions
2434 // FIXME: remove when we have a way to marking a MI with these properties.
2435 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2437 // FIXME: Should pc be an implicit operand like PICADD, etc?
2438 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2439 hasExtraDefRegAllocReq = 1 in
2440 def t2LDM_RET : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
2441 reglist:$dsts, variable_ops), IIC_Br,
2442 "ldm${addr:submode}${p}${addr:wide}\t$addr, $dsts",
2443 "$addr.addr = $wb", []> {
2444 let Inst{31-27} = 0b11101;
2445 let Inst{26-25} = 0b00;
2446 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
2448 let Inst{21} = 1; // The W bit.
2449 let Inst{20} = 1; // Load
2452 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2453 let isPredicable = 1 in
2454 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2456 [(br bb:$target)]> {
2457 let Inst{31-27} = 0b11110;
2458 let Inst{15-14} = 0b10;
2462 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2465 (ins GPR:$target, GPR:$index, jt2block_operand:$jt, i32imm:$id),
2466 IIC_Br, "mov\tpc, $target\n$jt",
2467 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]> {
2468 let Inst{31-27} = 0b11101;
2469 let Inst{26-20} = 0b0100100;
2470 let Inst{19-16} = 0b1111;
2471 let Inst{14-12} = 0b000;
2472 let Inst{11-8} = 0b1111; // Rd = pc
2473 let Inst{7-4} = 0b0000;
2476 // FIXME: Add a non-pc based case that can be predicated.
2479 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2480 IIC_Br, "tbb\t$index\n$jt", []> {
2481 let Inst{31-27} = 0b11101;
2482 let Inst{26-20} = 0b0001101;
2483 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2484 let Inst{15-8} = 0b11110000;
2485 let Inst{7-4} = 0b0000; // B form
2490 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2491 IIC_Br, "tbh\t$index\n$jt", []> {
2492 let Inst{31-27} = 0b11101;
2493 let Inst{26-20} = 0b0001101;
2494 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2495 let Inst{15-8} = 0b11110000;
2496 let Inst{7-4} = 0b0001; // H form
2499 // Generic versions of the above two instructions, for disassembly only
2501 def t2TBBgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2502 "tbb", "\t[$a, $b]", []>{
2503 let Inst{31-27} = 0b11101;
2504 let Inst{26-20} = 0b0001101;
2505 let Inst{15-8} = 0b11110000;
2506 let Inst{7-4} = 0b0000; // B form
2509 def t2TBHgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2510 "tbh", "\t[$a, $b, lsl #1]", []> {
2511 let Inst{31-27} = 0b11101;
2512 let Inst{26-20} = 0b0001101;
2513 let Inst{15-8} = 0b11110000;
2514 let Inst{7-4} = 0b0001; // H form
2516 } // isNotDuplicable, isIndirectBranch
2518 } // isBranch, isTerminator, isBarrier
2520 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
2521 // a two-value operand where a dag node expects two operands. :(
2522 let isBranch = 1, isTerminator = 1 in
2523 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
2525 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
2526 let Inst{31-27} = 0b11110;
2527 let Inst{15-14} = 0b10;
2533 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
2534 AddrModeNone, Size2Bytes, IIC_iALUx,
2535 "it$mask\t$cc", "", []> {
2536 // 16-bit instruction.
2537 let Inst{31-16} = 0x0000;
2538 let Inst{15-8} = 0b10111111;
2541 // Branch and Exchange Jazelle -- for disassembly only
2543 def t2BXJ : T2I<(outs), (ins GPR:$func), NoItinerary, "bxj", "\t$func",
2544 [/* For disassembly only; pattern left blank */]> {
2545 let Inst{31-27} = 0b11110;
2547 let Inst{25-20} = 0b111100;
2548 let Inst{15-14} = 0b10;
2552 // Change Processor State is a system instruction -- for disassembly only.
2553 // The singleton $opt operand contains the following information:
2554 // opt{4-0} = mode from Inst{4-0}
2555 // opt{5} = changemode from Inst{17}
2556 // opt{8-6} = AIF from Inst{8-6}
2557 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
2558 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
2559 [/* For disassembly only; pattern left blank */]> {
2560 let Inst{31-27} = 0b11110;
2562 let Inst{25-20} = 0b111010;
2563 let Inst{15-14} = 0b10;
2567 // A6.3.4 Branches and miscellaneous control
2568 // Table A6-14 Change Processor State, and hint instructions
2569 // Helper class for disassembly only.
2570 class T2I_hint<bits<8> op7_0, string opc, string asm>
2571 : T2I<(outs), (ins), NoItinerary, opc, asm,
2572 [/* For disassembly only; pattern left blank */]> {
2573 let Inst{31-20} = 0xf3a;
2574 let Inst{15-14} = 0b10;
2576 let Inst{10-8} = 0b000;
2577 let Inst{7-0} = op7_0;
2580 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
2581 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
2582 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
2583 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
2584 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
2586 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
2587 [/* For disassembly only; pattern left blank */]> {
2588 let Inst{31-20} = 0xf3a;
2589 let Inst{15-14} = 0b10;
2591 let Inst{10-8} = 0b000;
2592 let Inst{7-4} = 0b1111;
2595 // Secure Monitor Call is a system instruction -- for disassembly only
2596 // Option = Inst{19-16}
2597 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
2598 [/* For disassembly only; pattern left blank */]> {
2599 let Inst{31-27} = 0b11110;
2600 let Inst{26-20} = 0b1111111;
2601 let Inst{15-12} = 0b1000;
2604 // Store Return State is a system instruction -- for disassembly only
2605 def t2SRSDBW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
2606 [/* For disassembly only; pattern left blank */]> {
2607 let Inst{31-27} = 0b11101;
2608 let Inst{26-20} = 0b0000010; // W = 1
2611 def t2SRSDB : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
2612 [/* For disassembly only; pattern left blank */]> {
2613 let Inst{31-27} = 0b11101;
2614 let Inst{26-20} = 0b0000000; // W = 0
2617 def t2SRSIAW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
2618 [/* For disassembly only; pattern left blank */]> {
2619 let Inst{31-27} = 0b11101;
2620 let Inst{26-20} = 0b0011010; // W = 1
2623 def t2SRSIA : T2I<(outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
2624 [/* For disassembly only; pattern left blank */]> {
2625 let Inst{31-27} = 0b11101;
2626 let Inst{26-20} = 0b0011000; // W = 0
2629 // Return From Exception is a system instruction -- for disassembly only
2630 def t2RFEDBW : T2I<(outs), (ins GPR:$base), NoItinerary, "rfedb", "\t$base!",
2631 [/* For disassembly only; pattern left blank */]> {
2632 let Inst{31-27} = 0b11101;
2633 let Inst{26-20} = 0b0000011; // W = 1
2636 def t2RFEDB : T2I<(outs), (ins GPR:$base), NoItinerary, "rfeab", "\t$base",
2637 [/* For disassembly only; pattern left blank */]> {
2638 let Inst{31-27} = 0b11101;
2639 let Inst{26-20} = 0b0000001; // W = 0
2642 def t2RFEIAW : T2I<(outs), (ins GPR:$base), NoItinerary, "rfeia", "\t$base!",
2643 [/* For disassembly only; pattern left blank */]> {
2644 let Inst{31-27} = 0b11101;
2645 let Inst{26-20} = 0b0011011; // W = 1
2648 def t2RFEIA : T2I<(outs), (ins GPR:$base), NoItinerary, "rfeia", "\t$base",
2649 [/* For disassembly only; pattern left blank */]> {
2650 let Inst{31-27} = 0b11101;
2651 let Inst{26-20} = 0b0011001; // W = 0
2654 //===----------------------------------------------------------------------===//
2655 // Non-Instruction Patterns
2658 // Two piece so_imms.
2659 def : T2Pat<(or GPR:$LHS, t2_so_imm2part:$RHS),
2660 (t2ORRri (t2ORRri GPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2661 (t2_so_imm2part_2 imm:$RHS))>;
2662 def : T2Pat<(xor GPR:$LHS, t2_so_imm2part:$RHS),
2663 (t2EORri (t2EORri GPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2664 (t2_so_imm2part_2 imm:$RHS))>;
2665 def : T2Pat<(add GPR:$LHS, t2_so_imm2part:$RHS),
2666 (t2ADDri (t2ADDri GPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2667 (t2_so_imm2part_2 imm:$RHS))>;
2668 def : T2Pat<(add GPR:$LHS, t2_so_neg_imm2part:$RHS),
2669 (t2SUBri (t2SUBri GPR:$LHS, (t2_so_neg_imm2part_1 imm:$RHS)),
2670 (t2_so_neg_imm2part_2 imm:$RHS))>;
2672 // 32-bit immediate using movw + movt.
2673 // This is a single pseudo instruction to make it re-materializable. Remove
2674 // when we can do generalized remat.
2675 let isReMaterializable = 1 in
2676 def t2MOVi32imm : T2Ix2<(outs GPR:$dst), (ins i32imm:$src), IIC_iMOVi,
2677 "movw", "\t$dst, ${src:lo16}\n\tmovt${p}\t$dst, ${src:hi16}",
2678 [(set GPR:$dst, (i32 imm:$src))]>;
2680 // ConstantPool, GlobalAddress, and JumpTable
2681 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
2682 Requires<[IsThumb2, DontUseMovt]>;
2683 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
2684 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
2685 Requires<[IsThumb2, UseMovt]>;
2687 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
2688 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
2690 // Pseudo instruction that combines ldr from constpool and add pc. This should
2691 // be expanded into two instructions late to allow if-conversion and
2693 let canFoldAsLoad = 1, isReMaterializable = 1 in
2694 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
2695 NoItinerary, "${:comment} ldr.w\t$dst, $addr\n$cp:\n\tadd\t$dst, pc",
2696 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
2698 Requires<[IsThumb2]>;
2700 //===----------------------------------------------------------------------===//
2701 // Move between special register and ARM core register -- for disassembly only
2705 def t2MRS : T2I<(outs GPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, cpsr",
2706 [/* For disassembly only; pattern left blank */]> {
2707 let Inst{31-27} = 0b11110;
2709 let Inst{25-21} = 0b11111;
2710 let Inst{20} = 0; // The R bit.
2711 let Inst{15-14} = 0b10;
2716 def t2MRSsys : T2I<(outs GPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, spsr",
2717 [/* For disassembly only; pattern left blank */]> {
2718 let Inst{31-27} = 0b11110;
2720 let Inst{25-21} = 0b11111;
2721 let Inst{20} = 1; // The R bit.
2722 let Inst{15-14} = 0b10;
2727 def t2MSR : T2I<(outs), (ins GPR:$src, msr_mask:$mask), NoItinerary, "msr",
2728 "\tcpsr$mask, $src",
2729 [/* For disassembly only; pattern left blank */]> {
2730 let Inst{31-27} = 0b11110;
2732 let Inst{25-21} = 0b11100;
2733 let Inst{20} = 0; // The R bit.
2734 let Inst{15-14} = 0b10;
2739 def t2MSRsys : T2I<(outs), (ins GPR:$src, msr_mask:$mask), NoItinerary, "msr",
2740 "\tspsr$mask, $src",
2741 [/* For disassembly only; pattern left blank */]> {
2742 let Inst{31-27} = 0b11110;
2744 let Inst{25-21} = 0b11100;
2745 let Inst{20} = 1; // The R bit.
2746 let Inst{15-14} = 0b10;