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 $rot", []> {
761 let Inst{31-27} = 0b11111;
762 let Inst{26-23} = 0b0100;
763 let Inst{22-20} = opcod;
764 let Inst{15-12} = 0b1111;
766 let Inst{5-4} = {?,?}; // rotate
770 //===----------------------------------------------------------------------===//
772 //===----------------------------------------------------------------------===//
774 //===----------------------------------------------------------------------===//
775 // Miscellaneous Instructions.
778 // LEApcrel - Load a pc-relative address into a register without offending the
780 let neverHasSideEffects = 1 in {
781 let isReMaterializable = 1 in
782 def t2LEApcrel : T2XI<(outs GPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
783 "adr$p.w\t$dst, #$label", []> {
784 let Inst{31-27} = 0b11110;
785 let Inst{25-24} = 0b10;
786 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
789 let Inst{19-16} = 0b1111; // Rn
792 def t2LEApcrelJT : T2XI<(outs GPR:$dst),
793 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
794 "adr$p.w\t$dst, #${label}_${id}", []> {
795 let Inst{31-27} = 0b11110;
796 let Inst{25-24} = 0b10;
797 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
800 let Inst{19-16} = 0b1111; // Rn
803 } // neverHasSideEffects
805 // ADD r, sp, {so_imm|i12}
806 def t2ADDrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
807 IIC_iALUi, "add", ".w\t$dst, $sp, $imm", []> {
808 let Inst{31-27} = 0b11110;
810 let Inst{24-21} = 0b1000;
811 let Inst{20} = ?; // The S bit.
812 let Inst{19-16} = 0b1101; // Rn = sp
815 def t2ADDrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
816 IIC_iALUi, "addw", "\t$dst, $sp, $imm", []> {
817 let Inst{31-27} = 0b11110;
819 let Inst{24-21} = 0b0000;
820 let Inst{20} = 0; // The S bit.
821 let Inst{19-16} = 0b1101; // Rn = sp
826 def t2ADDrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
827 IIC_iALUsi, "add", ".w\t$dst, $sp, $rhs", []> {
828 let Inst{31-27} = 0b11101;
829 let Inst{26-25} = 0b01;
830 let Inst{24-21} = 0b1000;
831 let Inst{20} = ?; // The S bit.
832 let Inst{19-16} = 0b1101; // Rn = sp
836 // SUB r, sp, {so_imm|i12}
837 def t2SUBrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
838 IIC_iALUi, "sub", ".w\t$dst, $sp, $imm", []> {
839 let Inst{31-27} = 0b11110;
841 let Inst{24-21} = 0b1101;
842 let Inst{20} = ?; // The S bit.
843 let Inst{19-16} = 0b1101; // Rn = sp
846 def t2SUBrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
847 IIC_iALUi, "subw", "\t$dst, $sp, $imm", []> {
848 let Inst{31-27} = 0b11110;
850 let Inst{24-21} = 0b0101;
851 let Inst{20} = 0; // The S bit.
852 let Inst{19-16} = 0b1101; // Rn = sp
857 def t2SUBrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
859 "sub", "\t$dst, $sp, $rhs", []> {
860 let Inst{31-27} = 0b11101;
861 let Inst{26-25} = 0b01;
862 let Inst{24-21} = 0b1101;
863 let Inst{20} = ?; // The S bit.
864 let Inst{19-16} = 0b1101; // Rn = sp
868 // Signed and unsigned division on v7-M
869 def t2SDIV : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALUi,
870 "sdiv", "\t$dst, $a, $b",
871 [(set GPR:$dst, (sdiv GPR:$a, GPR:$b))]>,
872 Requires<[HasDivide]> {
873 let Inst{31-27} = 0b11111;
874 let Inst{26-21} = 0b011100;
876 let Inst{15-12} = 0b1111;
877 let Inst{7-4} = 0b1111;
880 def t2UDIV : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALUi,
881 "udiv", "\t$dst, $a, $b",
882 [(set GPR:$dst, (udiv GPR:$a, GPR:$b))]>,
883 Requires<[HasDivide]> {
884 let Inst{31-27} = 0b11111;
885 let Inst{26-21} = 0b011101;
887 let Inst{15-12} = 0b1111;
888 let Inst{7-4} = 0b1111;
891 // Pseudo instruction that will expand into a t2SUBrSPi + a copy.
892 let usesCustomInserter = 1 in { // Expanded after instruction selection.
893 def t2SUBrSPi_ : PseudoInst<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
894 NoItinerary, "${:comment} sub.w\t$dst, $sp, $imm", []>;
895 def t2SUBrSPi12_ : PseudoInst<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
896 NoItinerary, "${:comment} subw\t$dst, $sp, $imm", []>;
897 def t2SUBrSPs_ : PseudoInst<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
898 NoItinerary, "${:comment} sub\t$dst, $sp, $rhs", []>;
899 } // usesCustomInserter
902 //===----------------------------------------------------------------------===//
903 // Load / store Instructions.
907 let canFoldAsLoad = 1, isReMaterializable = 1 in
908 defm t2LDR : T2I_ld<0, 0b10, "ldr", UnOpFrag<(load node:$Src)>>;
910 // Loads with zero extension
911 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", UnOpFrag<(zextloadi16 node:$Src)>>;
912 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", UnOpFrag<(zextloadi8 node:$Src)>>;
914 // Loads with sign extension
915 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", UnOpFrag<(sextloadi16 node:$Src)>>;
916 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", UnOpFrag<(sextloadi8 node:$Src)>>;
918 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
920 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs GPR:$dst1, GPR:$dst2),
921 (ins t2addrmode_imm8s4:$addr),
922 IIC_iLoadi, "ldrd", "\t$dst1, $addr", []>;
923 def t2LDRDpci : T2Ii8s4<1, 0, 1, (outs GPR:$dst1, GPR:$dst2),
924 (ins i32imm:$addr), IIC_iLoadi,
925 "ldrd", "\t$dst1, $addr", []> {
926 let Inst{19-16} = 0b1111; // Rn
928 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
930 // zextload i1 -> zextload i8
931 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
932 (t2LDRBi12 t2addrmode_imm12:$addr)>;
933 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
934 (t2LDRBi8 t2addrmode_imm8:$addr)>;
935 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
936 (t2LDRBs t2addrmode_so_reg:$addr)>;
937 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
938 (t2LDRBpci tconstpool:$addr)>;
940 // extload -> zextload
941 // FIXME: Reduce the number of patterns by legalizing extload to zextload
943 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
944 (t2LDRBi12 t2addrmode_imm12:$addr)>;
945 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
946 (t2LDRBi8 t2addrmode_imm8:$addr)>;
947 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
948 (t2LDRBs t2addrmode_so_reg:$addr)>;
949 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
950 (t2LDRBpci tconstpool:$addr)>;
952 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
953 (t2LDRBi12 t2addrmode_imm12:$addr)>;
954 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
955 (t2LDRBi8 t2addrmode_imm8:$addr)>;
956 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
957 (t2LDRBs t2addrmode_so_reg:$addr)>;
958 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
959 (t2LDRBpci tconstpool:$addr)>;
961 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
962 (t2LDRHi12 t2addrmode_imm12:$addr)>;
963 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
964 (t2LDRHi8 t2addrmode_imm8:$addr)>;
965 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
966 (t2LDRHs t2addrmode_so_reg:$addr)>;
967 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
968 (t2LDRHpci tconstpool:$addr)>;
971 let mayLoad = 1, neverHasSideEffects = 1 in {
972 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$dst, GPR:$base_wb),
973 (ins t2addrmode_imm8:$addr),
974 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
975 "ldr", "\t$dst, $addr!", "$addr.base = $base_wb",
978 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$dst, GPR:$base_wb),
979 (ins GPR:$base, t2am_imm8_offset:$offset),
980 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
981 "ldr", "\t$dst, [$base], $offset", "$base = $base_wb",
984 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
985 (ins t2addrmode_imm8:$addr),
986 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
987 "ldrb", "\t$dst, $addr!", "$addr.base = $base_wb",
989 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
990 (ins GPR:$base, t2am_imm8_offset:$offset),
991 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
992 "ldrb", "\t$dst, [$base], $offset", "$base = $base_wb",
995 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
996 (ins t2addrmode_imm8:$addr),
997 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
998 "ldrh", "\t$dst, $addr!", "$addr.base = $base_wb",
1000 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1001 (ins GPR:$base, t2am_imm8_offset:$offset),
1002 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1003 "ldrh", "\t$dst, [$base], $offset", "$base = $base_wb",
1006 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1007 (ins t2addrmode_imm8:$addr),
1008 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1009 "ldrsb", "\t$dst, $addr!", "$addr.base = $base_wb",
1011 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1012 (ins GPR:$base, t2am_imm8_offset:$offset),
1013 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1014 "ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb",
1017 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1018 (ins t2addrmode_imm8:$addr),
1019 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1020 "ldrsh", "\t$dst, $addr!", "$addr.base = $base_wb",
1022 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1023 (ins GPR:$base, t2am_imm8_offset:$offset),
1024 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1025 "ldrsh", "\t$dst, [$base], $offset", "$base = $base_wb",
1027 } // mayLoad = 1, neverHasSideEffects = 1
1029 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1030 // for disassembly only.
1031 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1032 class T2IldT<bit signed, bits<2> type, string opc>
1033 : T2Ii8<(outs GPR:$dst), (ins t2addrmode_imm8:$addr), IIC_iLoadi, opc,
1034 "\t$dst, $addr", []> {
1035 let Inst{31-27} = 0b11111;
1036 let Inst{26-25} = 0b00;
1037 let Inst{24} = signed;
1039 let Inst{22-21} = type;
1040 let Inst{20} = 1; // load
1042 let Inst{10-8} = 0b110; // PUW.
1045 def t2LDRT : T2IldT<0, 0b10, "ldrt">;
1046 def t2LDRBT : T2IldT<0, 0b00, "ldrbt">;
1047 def t2LDRHT : T2IldT<0, 0b01, "ldrht">;
1048 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt">;
1049 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht">;
1052 defm t2STR :T2I_st<0b10,"str", BinOpFrag<(store node:$LHS, node:$RHS)>>;
1053 defm t2STRB:T2I_st<0b00,"strb",BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1054 defm t2STRH:T2I_st<0b01,"strh",BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1057 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1058 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1059 (ins GPR:$src1, GPR:$src2, t2addrmode_imm8s4:$addr),
1060 IIC_iStorer, "strd", "\t$src1, $addr", []>;
1063 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1064 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1065 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1066 "str", "\t$src, [$base, $offset]!", "$base = $base_wb",
1068 (pre_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1070 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1071 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1072 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1073 "str", "\t$src, [$base], $offset", "$base = $base_wb",
1075 (post_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1077 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1078 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1079 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1080 "strh", "\t$src, [$base, $offset]!", "$base = $base_wb",
1082 (pre_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1084 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1085 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1086 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1087 "strh", "\t$src, [$base], $offset", "$base = $base_wb",
1089 (post_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1091 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1092 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1093 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1094 "strb", "\t$src, [$base, $offset]!", "$base = $base_wb",
1096 (pre_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1098 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1099 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1100 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1101 "strb", "\t$src, [$base], $offset", "$base = $base_wb",
1103 (post_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1105 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1107 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1108 class T2IstT<bits<2> type, string opc>
1109 : T2Ii8<(outs GPR:$src), (ins t2addrmode_imm8:$addr), IIC_iStorei, opc,
1110 "\t$src, $addr", []> {
1111 let Inst{31-27} = 0b11111;
1112 let Inst{26-25} = 0b00;
1113 let Inst{24} = 0; // not signed
1115 let Inst{22-21} = type;
1116 let Inst{20} = 0; // store
1118 let Inst{10-8} = 0b110; // PUW
1121 def t2STRT : T2IstT<0b10, "strt">;
1122 def t2STRBT : T2IstT<0b00, "strbt">;
1123 def t2STRHT : T2IstT<0b01, "strht">;
1125 // ldrd / strd pre / post variants
1126 // For disassembly only.
1128 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1129 (ins GPR:$base, t2am_imm8s4_offset:$imm), NoItinerary,
1130 "ldrd", "\t$dst1, $dst2, [$base, $imm]!", []>;
1132 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1133 (ins GPR:$base, t2am_imm8s4_offset:$imm), NoItinerary,
1134 "ldrd", "\t$dst1, $dst2, [$base], $imm", []>;
1136 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1137 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1138 NoItinerary, "strd", "\t$src1, $src2, [$base, $imm]!", []>;
1140 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1141 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1142 NoItinerary, "strd", "\t$src1, $src2, [$base], $imm", []>;
1144 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1145 // data/instruction access. These are for disassembly only.
1147 // A8.6.117, A8.6.118. Different instructions are generated for #0 and #-0.
1148 // The neg_zero operand translates -0 to -1, -1 to -2, ..., etc.
1149 multiclass T2Ipl<bit instr, bit write, string opc> {
1151 def i12 : T2I<(outs), (ins GPR:$base, i32imm:$imm), IIC_iLoadi, opc,
1152 "\t[$base, $imm]", []> {
1153 let Inst{31-25} = 0b1111100;
1154 let Inst{24} = instr;
1155 let Inst{23} = 1; // U = 1
1157 let Inst{21} = write;
1159 let Inst{15-12} = 0b1111;
1162 def i8 : T2I<(outs), (ins GPR:$base, neg_zero:$imm), IIC_iLoadi, opc,
1163 "\t[$base, $imm]", []> {
1164 let Inst{31-25} = 0b1111100;
1165 let Inst{24} = instr;
1166 let Inst{23} = 0; // U = 0
1168 let Inst{21} = write;
1170 let Inst{15-12} = 0b1111;
1171 let Inst{11-8} = 0b1100;
1174 def pci : T2I<(outs), (ins GPR:$base, neg_zero:$imm), IIC_iLoadi, opc,
1175 "\t[pc, $imm]", []> {
1176 let Inst{31-25} = 0b1111100;
1177 let Inst{24} = instr;
1178 let Inst{23} = ?; // add = (U == 1)
1180 let Inst{21} = write;
1182 let Inst{19-16} = 0b1111; // Rn = 0b1111
1183 let Inst{15-12} = 0b1111;
1186 def r : T2I<(outs), (ins GPR:$base, GPR:$a), IIC_iLoadi, opc,
1187 "\t[$base, $a]", []> {
1188 let Inst{31-25} = 0b1111100;
1189 let Inst{24} = instr;
1190 let Inst{23} = 0; // add = TRUE for T1
1192 let Inst{21} = write;
1194 let Inst{15-12} = 0b1111;
1195 let Inst{11-6} = 0000000;
1196 let Inst{5-4} = 0b00; // no shift is applied
1199 def s : T2I<(outs), (ins GPR:$base, GPR:$a, i32imm:$shamt), IIC_iLoadi, opc,
1200 "\t[$base, $a, lsl $shamt]", []> {
1201 let Inst{31-25} = 0b1111100;
1202 let Inst{24} = instr;
1203 let Inst{23} = 0; // add = TRUE for T1
1205 let Inst{21} = write;
1207 let Inst{15-12} = 0b1111;
1208 let Inst{11-6} = 0000000;
1212 defm t2PLD : T2Ipl<0, 0, "pld">;
1213 defm t2PLDW : T2Ipl<0, 1, "pldw">;
1214 defm t2PLI : T2Ipl<1, 0, "pli">;
1216 //===----------------------------------------------------------------------===//
1217 // Load / store multiple Instructions.
1220 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1221 def t2LDM : T2XI<(outs), (ins addrmode4:$addr, pred:$p,
1222 reglist:$dsts, variable_ops), IIC_iLoadm,
1223 "ldm${addr:submode}${p}${addr:wide}\t$addr, $dsts", []> {
1224 let Inst{31-27} = 0b11101;
1225 let Inst{26-25} = 0b00;
1226 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1228 let Inst{21} = 0; // The W bit.
1229 let Inst{20} = 1; // Load
1232 def t2LDM_UPD : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
1233 reglist:$dsts, variable_ops), IIC_iLoadm,
1234 "ldm${addr:submode}${p}${addr:wide}\t$addr!, $dsts",
1235 "$addr.addr = $wb", []> {
1236 let Inst{31-27} = 0b11101;
1237 let Inst{26-25} = 0b00;
1238 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1240 let Inst{21} = 1; // The W bit.
1241 let Inst{20} = 1; // Load
1243 } // mayLoad, neverHasSideEffects, hasExtraDefRegAllocReq
1245 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in {
1246 def t2STM : T2XI<(outs), (ins addrmode4:$addr, pred:$p,
1247 reglist:$srcs, variable_ops), IIC_iStorem,
1248 "stm${addr:submode}${p}${addr:wide}\t$addr, $srcs", []> {
1249 let Inst{31-27} = 0b11101;
1250 let Inst{26-25} = 0b00;
1251 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1253 let Inst{21} = 0; // The W bit.
1254 let Inst{20} = 0; // Store
1257 def t2STM_UPD : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
1258 reglist:$srcs, variable_ops),
1260 "stm${addr:submode}${p}${addr:wide}\t$addr!, $srcs",
1261 "$addr.addr = $wb", []> {
1262 let Inst{31-27} = 0b11101;
1263 let Inst{26-25} = 0b00;
1264 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1266 let Inst{21} = 1; // The W bit.
1267 let Inst{20} = 0; // Store
1269 } // mayStore, neverHasSideEffects, hasExtraSrcRegAllocReq
1271 //===----------------------------------------------------------------------===//
1272 // Move Instructions.
1275 let neverHasSideEffects = 1 in
1276 def t2MOVr : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
1277 "mov", ".w\t$dst, $src", []> {
1278 let Inst{31-27} = 0b11101;
1279 let Inst{26-25} = 0b01;
1280 let Inst{24-21} = 0b0010;
1281 let Inst{20} = ?; // The S bit.
1282 let Inst{19-16} = 0b1111; // Rn
1283 let Inst{14-12} = 0b000;
1284 let Inst{7-4} = 0b0000;
1287 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1288 let isReMaterializable = 1, isAsCheapAsAMove = 1, AddedComplexity = 1 in
1289 def t2MOVi : T2sI<(outs GPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
1290 "mov", ".w\t$dst, $src",
1291 [(set GPR:$dst, t2_so_imm:$src)]> {
1292 let Inst{31-27} = 0b11110;
1294 let Inst{24-21} = 0b0010;
1295 let Inst{20} = ?; // The S bit.
1296 let Inst{19-16} = 0b1111; // Rn
1300 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
1301 def t2MOVi16 : T2I<(outs GPR:$dst), (ins i32imm:$src), IIC_iMOVi,
1302 "movw", "\t$dst, $src",
1303 [(set GPR:$dst, imm0_65535:$src)]> {
1304 let Inst{31-27} = 0b11110;
1306 let Inst{24-21} = 0b0010;
1307 let Inst{20} = 0; // The S bit.
1311 let Constraints = "$src = $dst" in
1312 def t2MOVTi16 : T2I<(outs GPR:$dst), (ins GPR:$src, i32imm:$imm), IIC_iMOVi,
1313 "movt", "\t$dst, $imm",
1315 (or (and GPR:$src, 0xffff), lo16AllZero:$imm))]> {
1316 let Inst{31-27} = 0b11110;
1318 let Inst{24-21} = 0b0110;
1319 let Inst{20} = 0; // The S bit.
1323 def : T2Pat<(or GPR:$src, 0xffff0000), (t2MOVTi16 GPR:$src, 0xffff)>;
1325 //===----------------------------------------------------------------------===//
1326 // Extend Instructions.
1331 defm t2SXTB : T2I_unary_rrot<0b100, "sxtb",
1332 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1333 defm t2SXTH : T2I_unary_rrot<0b000, "sxth",
1334 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1335 defm t2SXTB16 : T2I_unary_rrot_DO<0b010, "sxtb16">;
1337 defm t2SXTAB : T2I_bin_rrot<0b100, "sxtab",
1338 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1339 defm t2SXTAH : T2I_bin_rrot<0b000, "sxtah",
1340 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1341 defm t2SXTAB16 : T2I_bin_rrot_DO<0b010, "sxtab16">;
1343 // TODO: SXT(A){B|H}16 - done for disassembly only
1347 let AddedComplexity = 16 in {
1348 defm t2UXTB : T2I_unary_rrot<0b101, "uxtb",
1349 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1350 defm t2UXTH : T2I_unary_rrot<0b001, "uxth",
1351 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1352 defm t2UXTB16 : T2I_unary_rrot_nw<0b011, "uxtb16",
1353 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1355 def : T2Pat<(and (shl GPR:$Src, (i32 8)), 0xFF00FF),
1356 (t2UXTB16r_rot GPR:$Src, 24)>;
1357 def : T2Pat<(and (srl GPR:$Src, (i32 8)), 0xFF00FF),
1358 (t2UXTB16r_rot GPR:$Src, 8)>;
1360 defm t2UXTAB : T2I_bin_rrot<0b101, "uxtab",
1361 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1362 defm t2UXTAH : T2I_bin_rrot<0b001, "uxtah",
1363 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1364 defm t2UXTAB16 : T2I_bin_rrot_DO<0b011, "uxtab16">;
1367 //===----------------------------------------------------------------------===//
1368 // Arithmetic Instructions.
1371 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1372 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1373 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1374 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1376 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1377 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1378 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1379 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1380 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1382 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1383 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1384 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1385 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1386 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1387 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1388 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1389 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1392 defm t2RSB : T2I_rbin_is <0b1110, "rsb",
1393 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1394 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1395 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1397 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1398 let AddedComplexity = 1 in
1399 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1400 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1401 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1402 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1403 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1404 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1406 // Select Bytes -- for disassembly only
1408 def t2SEL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, "sel",
1409 "\t$dst, $a, $b", []> {
1410 let Inst{31-27} = 0b11111;
1411 let Inst{26-24} = 0b010;
1413 let Inst{22-20} = 0b010;
1414 let Inst{15-12} = 0b1111;
1416 let Inst{6-4} = 0b000;
1419 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1420 // And Miscellaneous operations -- for disassembly only
1421 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc>
1422 : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, opc,
1423 "\t$dst, $a, $b", [/* For disassembly only; pattern left blank */]> {
1424 let Inst{31-27} = 0b11111;
1425 let Inst{26-23} = 0b0101;
1426 let Inst{22-20} = op22_20;
1427 let Inst{15-12} = 0b1111;
1428 let Inst{7-4} = op7_4;
1431 // Saturating add/subtract -- for disassembly only
1433 def t2QADD : T2I_pam<0b000, 0b1000, "qadd">;
1434 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1435 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1436 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1437 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1438 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1439 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1440 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub">;
1441 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1442 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1443 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1444 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1445 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1446 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1447 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1448 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1450 // Signed/Unsigned add/subtract -- for disassembly only
1452 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1453 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1454 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1455 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1456 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1457 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1458 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1459 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1460 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1461 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1462 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1463 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1465 // Signed/Unsigned halving add/subtract -- for disassembly only
1467 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1468 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1469 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1470 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1471 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1472 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1473 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1474 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1475 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1476 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1477 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1478 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1480 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1482 def t2USAD8 : T2I_mac<0, 0b111, 0b0000, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1483 NoItinerary, "usad8", "\t$dst, $a, $b", []> {
1484 let Inst{15-12} = 0b1111;
1486 def t2USADA8 : T2I_mac<0, 0b111, 0b0000, (outs GPR:$dst),
1487 (ins GPR:$a, GPR:$b, GPR:$acc), NoItinerary, "usada8",
1488 "\t$dst, $a, $b, $acc", []>;
1490 // Signed/Unsigned saturate -- for disassembly only
1492 def t2SSATlsl : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos,GPR:$a,i32imm:$shamt),
1493 NoItinerary, "ssat", "\t$dst, $bit_pos, $a, lsl $shamt",
1494 [/* For disassembly only; pattern left blank */]> {
1495 let Inst{31-27} = 0b11110;
1496 let Inst{25-22} = 0b1100;
1499 let Inst{21} = 0; // sh = '0'
1502 def t2SSATasr : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos,GPR:$a,i32imm:$shamt),
1503 NoItinerary, "ssat", "\t$dst, $bit_pos, $a, asr $shamt",
1504 [/* For disassembly only; pattern left blank */]> {
1505 let Inst{31-27} = 0b11110;
1506 let Inst{25-22} = 0b1100;
1509 let Inst{21} = 1; // sh = '1'
1512 def t2SSAT16 : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos, GPR:$a), NoItinerary,
1513 "ssat16", "\t$dst, $bit_pos, $a",
1514 [/* For disassembly only; pattern left blank */]> {
1515 let Inst{31-27} = 0b11110;
1516 let Inst{25-22} = 0b1100;
1519 let Inst{21} = 1; // sh = '1'
1520 let Inst{14-12} = 0b000; // imm3 = '000'
1521 let Inst{7-6} = 0b00; // imm2 = '00'
1524 def t2USATlsl : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos,GPR:$a,i32imm:$shamt),
1525 NoItinerary, "usat", "\t$dst, $bit_pos, $a, lsl $shamt",
1526 [/* For disassembly only; pattern left blank */]> {
1527 let Inst{31-27} = 0b11110;
1528 let Inst{25-22} = 0b1110;
1531 let Inst{21} = 0; // sh = '0'
1534 def t2USATasr : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos,GPR:$a,i32imm:$shamt),
1535 NoItinerary, "usat", "\t$dst, $bit_pos, $a, asr $shamt",
1536 [/* For disassembly only; pattern left blank */]> {
1537 let Inst{31-27} = 0b11110;
1538 let Inst{25-22} = 0b1110;
1541 let Inst{21} = 1; // sh = '1'
1544 def t2USAT16 : T2I<(outs GPR:$dst), (ins i32imm:$bit_pos, GPR:$a), NoItinerary,
1545 "usat16", "\t$dst, $bit_pos, $a",
1546 [/* For disassembly only; pattern left blank */]> {
1547 let Inst{31-27} = 0b11110;
1548 let Inst{25-22} = 0b1110;
1551 let Inst{21} = 1; // sh = '1'
1552 let Inst{14-12} = 0b000; // imm3 = '000'
1553 let Inst{7-6} = 0b00; // imm2 = '00'
1556 //===----------------------------------------------------------------------===//
1557 // Shift and rotate Instructions.
1560 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
1561 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
1562 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
1563 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
1565 let Uses = [CPSR] in {
1566 def t2MOVrx : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
1567 "rrx", "\t$dst, $src",
1568 [(set GPR:$dst, (ARMrrx GPR:$src))]> {
1569 let Inst{31-27} = 0b11101;
1570 let Inst{26-25} = 0b01;
1571 let Inst{24-21} = 0b0010;
1572 let Inst{20} = ?; // The S bit.
1573 let Inst{19-16} = 0b1111; // Rn
1574 let Inst{14-12} = 0b000;
1575 let Inst{7-4} = 0b0011;
1579 let Defs = [CPSR] in {
1580 def t2MOVsrl_flag : T2XI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
1581 "lsrs.w\t$dst, $src, #1",
1582 [(set GPR:$dst, (ARMsrl_flag GPR:$src))]> {
1583 let Inst{31-27} = 0b11101;
1584 let Inst{26-25} = 0b01;
1585 let Inst{24-21} = 0b0010;
1586 let Inst{20} = 1; // The S bit.
1587 let Inst{19-16} = 0b1111; // Rn
1588 let Inst{5-4} = 0b01; // Shift type.
1589 // Shift amount = Inst{14-12:7-6} = 1.
1590 let Inst{14-12} = 0b000;
1591 let Inst{7-6} = 0b01;
1593 def t2MOVsra_flag : T2XI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
1594 "asrs.w\t$dst, $src, #1",
1595 [(set GPR:$dst, (ARMsra_flag GPR:$src))]> {
1596 let Inst{31-27} = 0b11101;
1597 let Inst{26-25} = 0b01;
1598 let Inst{24-21} = 0b0010;
1599 let Inst{20} = 1; // The S bit.
1600 let Inst{19-16} = 0b1111; // Rn
1601 let Inst{5-4} = 0b10; // Shift type.
1602 // Shift amount = Inst{14-12:7-6} = 1.
1603 let Inst{14-12} = 0b000;
1604 let Inst{7-6} = 0b01;
1608 //===----------------------------------------------------------------------===//
1609 // Bitwise Instructions.
1612 defm t2AND : T2I_bin_w_irs<0b0000, "and",
1613 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
1614 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
1615 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
1616 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
1617 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
1619 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
1620 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
1622 let Constraints = "$src = $dst" in
1623 def t2BFC : T2I<(outs GPR:$dst), (ins GPR:$src, bf_inv_mask_imm:$imm),
1624 IIC_iUNAsi, "bfc", "\t$dst, $imm",
1625 [(set GPR:$dst, (and GPR:$src, bf_inv_mask_imm:$imm))]> {
1626 let Inst{31-27} = 0b11110;
1628 let Inst{24-20} = 0b10110;
1629 let Inst{19-16} = 0b1111; // Rn
1633 def t2SBFX : T2I<(outs GPR:$dst), (ins GPR:$src, imm0_31:$lsb, imm0_31:$width),
1634 IIC_iALUi, "sbfx", "\t$dst, $src, $lsb, $width", []> {
1635 let Inst{31-27} = 0b11110;
1637 let Inst{24-20} = 0b10100;
1641 def t2UBFX : T2I<(outs GPR:$dst), (ins GPR:$src, imm0_31:$lsb, imm0_31:$width),
1642 IIC_iALUi, "ubfx", "\t$dst, $src, $lsb, $width", []> {
1643 let Inst{31-27} = 0b11110;
1645 let Inst{24-20} = 0b11100;
1649 // A8.6.18 BFI - Bitfield insert (Encoding T1)
1650 // Added for disassembler with the pattern field purposely left blank.
1651 // FIXME: Utilize this instruction in codgen.
1652 def t2BFI : T2I<(outs GPR:$dst), (ins GPR:$src, imm0_31:$lsb, imm0_31:$width),
1653 IIC_iALUi, "bfi", "\t$dst, $src, $lsb, $width", []> {
1654 let Inst{31-27} = 0b11110;
1656 let Inst{24-20} = 0b10110;
1660 defm t2ORN : T2I_bin_irs<0b0011, "orn", BinOpFrag<(or node:$LHS,
1663 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
1664 let AddedComplexity = 1 in
1665 defm t2MVN : T2I_un_irs <0b0011, "mvn", UnOpFrag<(not node:$Src)>, 1, 1>;
1668 def : T2Pat<(and GPR:$src, t2_so_imm_not:$imm),
1669 (t2BICri GPR:$src, t2_so_imm_not:$imm)>;
1671 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
1672 def : T2Pat<(or GPR:$src, t2_so_imm_not:$imm),
1673 (t2ORNri GPR:$src, t2_so_imm_not:$imm)>,
1674 Requires<[IsThumb2]>;
1676 def : T2Pat<(t2_so_imm_not:$src),
1677 (t2MVNi t2_so_imm_not:$src)>;
1679 //===----------------------------------------------------------------------===//
1680 // Multiply Instructions.
1682 let isCommutable = 1 in
1683 def t2MUL: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1684 "mul", "\t$dst, $a, $b",
1685 [(set GPR:$dst, (mul GPR:$a, GPR:$b))]> {
1686 let Inst{31-27} = 0b11111;
1687 let Inst{26-23} = 0b0110;
1688 let Inst{22-20} = 0b000;
1689 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1690 let Inst{7-4} = 0b0000; // Multiply
1693 def t2MLA: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1694 "mla", "\t$dst, $a, $b, $c",
1695 [(set GPR:$dst, (add (mul GPR:$a, GPR:$b), GPR:$c))]> {
1696 let Inst{31-27} = 0b11111;
1697 let Inst{26-23} = 0b0110;
1698 let Inst{22-20} = 0b000;
1699 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1700 let Inst{7-4} = 0b0000; // Multiply
1703 def t2MLS: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1704 "mls", "\t$dst, $a, $b, $c",
1705 [(set GPR:$dst, (sub GPR:$c, (mul GPR:$a, GPR:$b)))]> {
1706 let Inst{31-27} = 0b11111;
1707 let Inst{26-23} = 0b0110;
1708 let Inst{22-20} = 0b000;
1709 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1710 let Inst{7-4} = 0b0001; // Multiply and Subtract
1713 // Extra precision multiplies with low / high results
1714 let neverHasSideEffects = 1 in {
1715 let isCommutable = 1 in {
1716 def t2SMULL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMUL64,
1717 "smull", "\t$ldst, $hdst, $a, $b", []> {
1718 let Inst{31-27} = 0b11111;
1719 let Inst{26-23} = 0b0111;
1720 let Inst{22-20} = 0b000;
1721 let Inst{7-4} = 0b0000;
1724 def t2UMULL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMUL64,
1725 "umull", "\t$ldst, $hdst, $a, $b", []> {
1726 let Inst{31-27} = 0b11111;
1727 let Inst{26-23} = 0b0111;
1728 let Inst{22-20} = 0b010;
1729 let Inst{7-4} = 0b0000;
1733 // Multiply + accumulate
1734 def t2SMLAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMAC64,
1735 "smlal", "\t$ldst, $hdst, $a, $b", []>{
1736 let Inst{31-27} = 0b11111;
1737 let Inst{26-23} = 0b0111;
1738 let Inst{22-20} = 0b100;
1739 let Inst{7-4} = 0b0000;
1742 def t2UMLAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMAC64,
1743 "umlal", "\t$ldst, $hdst, $a, $b", []>{
1744 let Inst{31-27} = 0b11111;
1745 let Inst{26-23} = 0b0111;
1746 let Inst{22-20} = 0b110;
1747 let Inst{7-4} = 0b0000;
1750 def t2UMAAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iMAC64,
1751 "umaal", "\t$ldst, $hdst, $a, $b", []>{
1752 let Inst{31-27} = 0b11111;
1753 let Inst{26-23} = 0b0111;
1754 let Inst{22-20} = 0b110;
1755 let Inst{7-4} = 0b0110;
1757 } // neverHasSideEffects
1759 // Rounding variants of the below included for disassembly only
1761 // Most significant word multiply
1762 def t2SMMUL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1763 "smmul", "\t$dst, $a, $b",
1764 [(set GPR:$dst, (mulhs GPR:$a, GPR:$b))]> {
1765 let Inst{31-27} = 0b11111;
1766 let Inst{26-23} = 0b0110;
1767 let Inst{22-20} = 0b101;
1768 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1769 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1772 def t2SMMULR : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1773 "smmulr", "\t$dst, $a, $b", []> {
1774 let Inst{31-27} = 0b11111;
1775 let Inst{26-23} = 0b0110;
1776 let Inst{22-20} = 0b101;
1777 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1778 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1781 def t2SMMLA : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1782 "smmla", "\t$dst, $a, $b, $c",
1783 [(set GPR:$dst, (add (mulhs GPR:$a, GPR:$b), GPR:$c))]> {
1784 let Inst{31-27} = 0b11111;
1785 let Inst{26-23} = 0b0110;
1786 let Inst{22-20} = 0b101;
1787 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1788 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1791 def t2SMMLAR : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1792 "smmlar", "\t$dst, $a, $b, $c", []> {
1793 let Inst{31-27} = 0b11111;
1794 let Inst{26-23} = 0b0110;
1795 let Inst{22-20} = 0b101;
1796 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1797 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1800 def t2SMMLS : T2I <(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1801 "smmls", "\t$dst, $a, $b, $c",
1802 [(set GPR:$dst, (sub GPR:$c, (mulhs GPR:$a, GPR:$b)))]> {
1803 let Inst{31-27} = 0b11111;
1804 let Inst{26-23} = 0b0110;
1805 let Inst{22-20} = 0b110;
1806 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1807 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1810 def t2SMMLSR : T2I <(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iMAC32,
1811 "smmlsr", "\t$dst, $a, $b, $c", []> {
1812 let Inst{31-27} = 0b11111;
1813 let Inst{26-23} = 0b0110;
1814 let Inst{22-20} = 0b110;
1815 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1816 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1819 multiclass T2I_smul<string opc, PatFrag opnode> {
1820 def BB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1821 !strconcat(opc, "bb"), "\t$dst, $a, $b",
1822 [(set GPR:$dst, (opnode (sext_inreg GPR:$a, i16),
1823 (sext_inreg GPR:$b, i16)))]> {
1824 let Inst{31-27} = 0b11111;
1825 let Inst{26-23} = 0b0110;
1826 let Inst{22-20} = 0b001;
1827 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1828 let Inst{7-6} = 0b00;
1829 let Inst{5-4} = 0b00;
1832 def BT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1833 !strconcat(opc, "bt"), "\t$dst, $a, $b",
1834 [(set GPR:$dst, (opnode (sext_inreg GPR:$a, i16),
1835 (sra GPR:$b, (i32 16))))]> {
1836 let Inst{31-27} = 0b11111;
1837 let Inst{26-23} = 0b0110;
1838 let Inst{22-20} = 0b001;
1839 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1840 let Inst{7-6} = 0b00;
1841 let Inst{5-4} = 0b01;
1844 def TB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1845 !strconcat(opc, "tb"), "\t$dst, $a, $b",
1846 [(set GPR:$dst, (opnode (sra GPR:$a, (i32 16)),
1847 (sext_inreg GPR:$b, i16)))]> {
1848 let Inst{31-27} = 0b11111;
1849 let Inst{26-23} = 0b0110;
1850 let Inst{22-20} = 0b001;
1851 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1852 let Inst{7-6} = 0b00;
1853 let Inst{5-4} = 0b10;
1856 def TT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL32,
1857 !strconcat(opc, "tt"), "\t$dst, $a, $b",
1858 [(set GPR:$dst, (opnode (sra GPR:$a, (i32 16)),
1859 (sra GPR:$b, (i32 16))))]> {
1860 let Inst{31-27} = 0b11111;
1861 let Inst{26-23} = 0b0110;
1862 let Inst{22-20} = 0b001;
1863 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1864 let Inst{7-6} = 0b00;
1865 let Inst{5-4} = 0b11;
1868 def WB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL16,
1869 !strconcat(opc, "wb"), "\t$dst, $a, $b",
1870 [(set GPR:$dst, (sra (opnode GPR:$a,
1871 (sext_inreg GPR:$b, i16)), (i32 16)))]> {
1872 let Inst{31-27} = 0b11111;
1873 let Inst{26-23} = 0b0110;
1874 let Inst{22-20} = 0b011;
1875 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1876 let Inst{7-6} = 0b00;
1877 let Inst{5-4} = 0b00;
1880 def WT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iMUL16,
1881 !strconcat(opc, "wt"), "\t$dst, $a, $b",
1882 [(set GPR:$dst, (sra (opnode GPR:$a,
1883 (sra GPR:$b, (i32 16))), (i32 16)))]> {
1884 let Inst{31-27} = 0b11111;
1885 let Inst{26-23} = 0b0110;
1886 let Inst{22-20} = 0b011;
1887 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1888 let Inst{7-6} = 0b00;
1889 let Inst{5-4} = 0b01;
1894 multiclass T2I_smla<string opc, PatFrag opnode> {
1895 def BB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1896 !strconcat(opc, "bb"), "\t$dst, $a, $b, $acc",
1897 [(set GPR:$dst, (add GPR:$acc,
1898 (opnode (sext_inreg GPR:$a, i16),
1899 (sext_inreg GPR:$b, i16))))]> {
1900 let Inst{31-27} = 0b11111;
1901 let Inst{26-23} = 0b0110;
1902 let Inst{22-20} = 0b001;
1903 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1904 let Inst{7-6} = 0b00;
1905 let Inst{5-4} = 0b00;
1908 def BT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1909 !strconcat(opc, "bt"), "\t$dst, $a, $b, $acc",
1910 [(set GPR:$dst, (add GPR:$acc, (opnode (sext_inreg GPR:$a, i16),
1911 (sra GPR:$b, (i32 16)))))]> {
1912 let Inst{31-27} = 0b11111;
1913 let Inst{26-23} = 0b0110;
1914 let Inst{22-20} = 0b001;
1915 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1916 let Inst{7-6} = 0b00;
1917 let Inst{5-4} = 0b01;
1920 def TB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1921 !strconcat(opc, "tb"), "\t$dst, $a, $b, $acc",
1922 [(set GPR:$dst, (add GPR:$acc, (opnode (sra GPR:$a, (i32 16)),
1923 (sext_inreg GPR:$b, i16))))]> {
1924 let Inst{31-27} = 0b11111;
1925 let Inst{26-23} = 0b0110;
1926 let Inst{22-20} = 0b001;
1927 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1928 let Inst{7-6} = 0b00;
1929 let Inst{5-4} = 0b10;
1932 def TT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1933 !strconcat(opc, "tt"), "\t$dst, $a, $b, $acc",
1934 [(set GPR:$dst, (add GPR:$acc, (opnode (sra GPR:$a, (i32 16)),
1935 (sra GPR:$b, (i32 16)))))]> {
1936 let Inst{31-27} = 0b11111;
1937 let Inst{26-23} = 0b0110;
1938 let Inst{22-20} = 0b001;
1939 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1940 let Inst{7-6} = 0b00;
1941 let Inst{5-4} = 0b11;
1944 def WB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1945 !strconcat(opc, "wb"), "\t$dst, $a, $b, $acc",
1946 [(set GPR:$dst, (add GPR:$acc, (sra (opnode GPR:$a,
1947 (sext_inreg GPR:$b, i16)), (i32 16))))]> {
1948 let Inst{31-27} = 0b11111;
1949 let Inst{26-23} = 0b0110;
1950 let Inst{22-20} = 0b011;
1951 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1952 let Inst{7-6} = 0b00;
1953 let Inst{5-4} = 0b00;
1956 def WT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC16,
1957 !strconcat(opc, "wt"), "\t$dst, $a, $b, $acc",
1958 [(set GPR:$dst, (add GPR:$acc, (sra (opnode GPR:$a,
1959 (sra GPR:$b, (i32 16))), (i32 16))))]> {
1960 let Inst{31-27} = 0b11111;
1961 let Inst{26-23} = 0b0110;
1962 let Inst{22-20} = 0b011;
1963 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1964 let Inst{7-6} = 0b00;
1965 let Inst{5-4} = 0b01;
1969 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
1970 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
1972 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
1973 def t2SMLALBB : T2I_mac<1, 0b100, 0b1000, (outs GPR:$ldst,GPR:$hdst),
1974 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlalbb", "\t$ldst, $hdst, $a, $b",
1975 [/* For disassembly only; pattern left blank */]>;
1976 def t2SMLALBT : T2I_mac<1, 0b100, 0b1001, (outs GPR:$ldst,GPR:$hdst),
1977 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlalbt", "\t$ldst, $hdst, $a, $b",
1978 [/* For disassembly only; pattern left blank */]>;
1979 def t2SMLALTB : T2I_mac<1, 0b100, 0b1010, (outs GPR:$ldst,GPR:$hdst),
1980 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlaltb", "\t$ldst, $hdst, $a, $b",
1981 [/* For disassembly only; pattern left blank */]>;
1982 def t2SMLALTT : T2I_mac<1, 0b100, 0b1011, (outs GPR:$ldst,GPR:$hdst),
1983 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlaltt", "\t$ldst, $hdst, $a, $b",
1984 [/* For disassembly only; pattern left blank */]>;
1986 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
1987 // These are for disassembly only.
1989 def t2SMUAD : T2I_mac<0, 0b010, 0b0000, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1990 IIC_iMAC32, "smuad", "\t$dst, $a, $b", []> {
1991 let Inst{15-12} = 0b1111;
1993 def t2SMUADX : T2I_mac<0, 0b010, 0b0001, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1994 IIC_iMAC32, "smuadx", "\t$dst, $a, $b", []> {
1995 let Inst{15-12} = 0b1111;
1997 def t2SMUSD : T2I_mac<0, 0b100, 0b0000, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
1998 IIC_iMAC32, "smusd", "\t$dst, $a, $b", []> {
1999 let Inst{15-12} = 0b1111;
2001 def t2SMUSDX : T2I_mac<0, 0b100, 0b0001, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
2002 IIC_iMAC32, "smusdx", "\t$dst, $a, $b", []> {
2003 let Inst{15-12} = 0b1111;
2005 def t2SMLAD : T2I_mac<0, 0b010, 0b0000, (outs GPR:$dst),
2006 (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC32, "smlad",
2007 "\t$dst, $a, $b, $acc", []>;
2008 def t2SMLADX : T2I_mac<0, 0b010, 0b0001, (outs GPR:$dst),
2009 (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC32, "smladx",
2010 "\t$dst, $a, $b, $acc", []>;
2011 def t2SMLSD : T2I_mac<0, 0b100, 0b0000, (outs GPR:$dst),
2012 (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC32, "smlsd",
2013 "\t$dst, $a, $b, $acc", []>;
2014 def t2SMLSDX : T2I_mac<0, 0b100, 0b0001, (outs GPR:$dst),
2015 (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iMAC32, "smlsdx",
2016 "\t$dst, $a, $b, $acc", []>;
2017 def t2SMLALD : T2I_mac<1, 0b100, 0b1100, (outs GPR:$ldst,GPR:$hdst),
2018 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlald",
2019 "\t$ldst, $hdst, $a, $b", []>;
2020 def t2SMLALDX : T2I_mac<1, 0b100, 0b1101, (outs GPR:$ldst,GPR:$hdst),
2021 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlaldx",
2022 "\t$ldst, $hdst, $a, $b", []>;
2023 def t2SMLSLD : T2I_mac<1, 0b101, 0b1100, (outs GPR:$ldst,GPR:$hdst),
2024 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlsld",
2025 "\t$ldst, $hdst, $a, $b", []>;
2026 def t2SMLSLDX : T2I_mac<1, 0b101, 0b1101, (outs GPR:$ldst,GPR:$hdst),
2027 (ins GPR:$a,GPR:$b), IIC_iMAC64, "smlsldx",
2028 "\t$ldst, $hdst, $a, $b", []>;
2030 //===----------------------------------------------------------------------===//
2031 // Misc. Arithmetic Instructions.
2034 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2035 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2036 : T2I<oops, iops, itin, opc, asm, pattern> {
2037 let Inst{31-27} = 0b11111;
2038 let Inst{26-22} = 0b01010;
2039 let Inst{21-20} = op1;
2040 let Inst{15-12} = 0b1111;
2041 let Inst{7-6} = 0b10;
2042 let Inst{5-4} = op2;
2045 def t2CLZ : T2I_misc<0b11, 0b00, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
2046 "clz", "\t$dst, $src", [(set GPR:$dst, (ctlz GPR:$src))]>;
2048 def t2RBIT : T2I_misc<0b01, 0b10, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
2049 "rbit", "\t$dst, $src",
2050 [(set GPR:$dst, (ARMrbit GPR:$src))]>;
2052 def t2REV : T2I_misc<0b01, 0b00, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
2053 "rev", ".w\t$dst, $src", [(set GPR:$dst, (bswap GPR:$src))]>;
2055 def t2REV16 : T2I_misc<0b01, 0b01, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
2056 "rev16", ".w\t$dst, $src",
2058 (or (and (srl GPR:$src, (i32 8)), 0xFF),
2059 (or (and (shl GPR:$src, (i32 8)), 0xFF00),
2060 (or (and (srl GPR:$src, (i32 8)), 0xFF0000),
2061 (and (shl GPR:$src, (i32 8)), 0xFF000000)))))]>;
2063 def t2REVSH : T2I_misc<0b01, 0b11, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
2064 "revsh", ".w\t$dst, $src",
2067 (or (srl (and GPR:$src, 0xFF00), (i32 8)),
2068 (shl GPR:$src, (i32 8))), i16))]>;
2070 def t2PKHBT : T2I<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2, i32imm:$shamt),
2071 IIC_iALUsi, "pkhbt", "\t$dst, $src1, $src2, lsl $shamt",
2072 [(set GPR:$dst, (or (and GPR:$src1, 0xFFFF),
2073 (and (shl GPR:$src2, (i32 imm:$shamt)),
2075 Requires<[HasT2ExtractPack]> {
2076 let Inst{31-27} = 0b11101;
2077 let Inst{26-25} = 0b01;
2078 let Inst{24-20} = 0b01100;
2079 let Inst{5} = 0; // BT form
2083 // Alternate cases for PKHBT where identities eliminate some nodes.
2084 def : T2Pat<(or (and GPR:$src1, 0xFFFF), (and GPR:$src2, 0xFFFF0000)),
2085 (t2PKHBT GPR:$src1, GPR:$src2, 0)>,
2086 Requires<[HasT2ExtractPack]>;
2087 def : T2Pat<(or (and GPR:$src1, 0xFFFF), (shl GPR:$src2, imm16_31:$shamt)),
2088 (t2PKHBT GPR:$src1, GPR:$src2, imm16_31:$shamt)>,
2089 Requires<[HasT2ExtractPack]>;
2091 def t2PKHTB : T2I<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2, i32imm:$shamt),
2092 IIC_iALUsi, "pkhtb", "\t$dst, $src1, $src2, asr $shamt",
2093 [(set GPR:$dst, (or (and GPR:$src1, 0xFFFF0000),
2094 (and (sra GPR:$src2, imm16_31:$shamt),
2096 Requires<[HasT2ExtractPack]> {
2097 let Inst{31-27} = 0b11101;
2098 let Inst{26-25} = 0b01;
2099 let Inst{24-20} = 0b01100;
2100 let Inst{5} = 1; // TB form
2104 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2105 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2106 def : T2Pat<(or (and GPR:$src1, 0xFFFF0000), (srl GPR:$src2, (i32 16))),
2107 (t2PKHTB GPR:$src1, GPR:$src2, 16)>,
2108 Requires<[HasT2ExtractPack]>;
2109 def : T2Pat<(or (and GPR:$src1, 0xFFFF0000),
2110 (and (srl GPR:$src2, imm1_15:$shamt), 0xFFFF)),
2111 (t2PKHTB GPR:$src1, GPR:$src2, imm1_15:$shamt)>,
2112 Requires<[HasT2ExtractPack]>;
2114 //===----------------------------------------------------------------------===//
2115 // Comparison Instructions...
2118 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2119 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2120 defm t2CMPz : T2I_cmp_irs<0b1101, "cmp",
2121 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
2123 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2124 // Compare-to-zero still works out, just not the relationals
2125 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2126 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2127 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2128 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2130 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2131 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2133 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2134 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2136 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2137 BinOpFrag<(ARMcmpZ (and node:$LHS, node:$RHS), 0)>>;
2138 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2139 BinOpFrag<(ARMcmpZ (xor node:$LHS, node:$RHS), 0)>>;
2141 // A8.6.27 CBNZ, CBZ - Compare and branch on (non)zero.
2142 // Short range conditional branch. Looks awesome for loops. Need to figure
2143 // out how to use this one.
2146 // Conditional moves
2147 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2148 // a two-value operand where a dag node expects two operands. :(
2149 let neverHasSideEffects = 1 in {
2150 def t2MOVCCr : T2I<(outs GPR:$dst), (ins GPR:$false, GPR:$true), IIC_iCMOVr,
2151 "mov", ".w\t$dst, $true",
2152 [/*(set GPR:$dst, (ARMcmov GPR:$false, GPR:$true, imm:$cc, CCR:$ccr))*/]>,
2153 RegConstraint<"$false = $dst"> {
2154 let Inst{31-27} = 0b11101;
2155 let Inst{26-25} = 0b01;
2156 let Inst{24-21} = 0b0010;
2157 let Inst{20} = 0; // The S bit.
2158 let Inst{19-16} = 0b1111; // Rn
2159 let Inst{14-12} = 0b000;
2160 let Inst{7-4} = 0b0000;
2163 def t2MOVCCi : T2I<(outs GPR:$dst), (ins GPR:$false, t2_so_imm:$true),
2164 IIC_iCMOVi, "mov", ".w\t$dst, $true",
2165 [/*(set GPR:$dst, (ARMcmov GPR:$false, t2_so_imm:$true, imm:$cc, CCR:$ccr))*/]>,
2166 RegConstraint<"$false = $dst"> {
2167 let Inst{31-27} = 0b11110;
2169 let Inst{24-21} = 0b0010;
2170 let Inst{20} = 0; // The S bit.
2171 let Inst{19-16} = 0b1111; // Rn
2175 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2176 string opc, string asm, list<dag> pattern>
2177 : T2I<oops, iops, itin, opc, asm, pattern> {
2178 let Inst{31-27} = 0b11101;
2179 let Inst{26-25} = 0b01;
2180 let Inst{24-21} = 0b0010;
2181 let Inst{20} = 0; // The S bit.
2182 let Inst{19-16} = 0b1111; // Rn
2183 let Inst{5-4} = opcod; // Shift type.
2185 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs GPR:$dst),
2186 (ins GPR:$false, GPR:$true, i32imm:$rhs),
2187 IIC_iCMOVsi, "lsl", ".w\t$dst, $true, $rhs", []>,
2188 RegConstraint<"$false = $dst">;
2189 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs GPR:$dst),
2190 (ins GPR:$false, GPR:$true, i32imm:$rhs),
2191 IIC_iCMOVsi, "lsr", ".w\t$dst, $true, $rhs", []>,
2192 RegConstraint<"$false = $dst">;
2193 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs GPR:$dst),
2194 (ins GPR:$false, GPR:$true, i32imm:$rhs),
2195 IIC_iCMOVsi, "asr", ".w\t$dst, $true, $rhs", []>,
2196 RegConstraint<"$false = $dst">;
2197 def t2MOVCCror : T2I_movcc_sh<0b11, (outs GPR:$dst),
2198 (ins GPR:$false, GPR:$true, i32imm:$rhs),
2199 IIC_iCMOVsi, "ror", ".w\t$dst, $true, $rhs", []>,
2200 RegConstraint<"$false = $dst">;
2201 } // neverHasSideEffects
2203 //===----------------------------------------------------------------------===//
2204 // Atomic operations intrinsics
2207 // memory barriers protect the atomic sequences
2208 let hasSideEffects = 1 in {
2209 def t2Int_MemBarrierV7 : AInoP<(outs), (ins),
2210 ThumbFrm, NoItinerary,
2212 [(ARMMemBarrierV7)]>,
2213 Requires<[IsThumb2]> {
2214 let Inst{31-4} = 0xF3BF8F5;
2215 // FIXME: add support for options other than a full system DMB
2216 let Inst{3-0} = 0b1111;
2219 def t2Int_SyncBarrierV7 : AInoP<(outs), (ins),
2220 ThumbFrm, NoItinerary,
2222 [(ARMSyncBarrierV7)]>,
2223 Requires<[IsThumb2]> {
2224 let Inst{31-4} = 0xF3BF8F4;
2225 // FIXME: add support for options other than a full system DSB
2226 let Inst{3-0} = 0b1111;
2230 // Helper class for multiclass T2MemB -- for disassembly only
2231 class T2I_memb<string opc, string asm>
2232 : T2I<(outs), (ins), NoItinerary, opc, asm,
2233 [/* For disassembly only; pattern left blank */]>,
2234 Requires<[IsThumb2, HasV7]> {
2235 let Inst{31-20} = 0xf3b;
2236 let Inst{15-14} = 0b10;
2240 multiclass T2MemB<bits<4> op7_4, string opc> {
2242 def st : T2I_memb<opc, "\tst"> {
2243 let Inst{7-4} = op7_4;
2244 let Inst{3-0} = 0b1110;
2247 def ish : T2I_memb<opc, "\tish"> {
2248 let Inst{7-4} = op7_4;
2249 let Inst{3-0} = 0b1011;
2252 def ishst : T2I_memb<opc, "\tishst"> {
2253 let Inst{7-4} = op7_4;
2254 let Inst{3-0} = 0b1010;
2257 def nsh : T2I_memb<opc, "\tnsh"> {
2258 let Inst{7-4} = op7_4;
2259 let Inst{3-0} = 0b0111;
2262 def nshst : T2I_memb<opc, "\tnshst"> {
2263 let Inst{7-4} = op7_4;
2264 let Inst{3-0} = 0b0110;
2267 def osh : T2I_memb<opc, "\tosh"> {
2268 let Inst{7-4} = op7_4;
2269 let Inst{3-0} = 0b0011;
2272 def oshst : T2I_memb<opc, "\toshst"> {
2273 let Inst{7-4} = op7_4;
2274 let Inst{3-0} = 0b0010;
2278 // These DMB variants are for disassembly only.
2279 defm t2DMB : T2MemB<0b0101, "dmb">;
2281 // These DSB variants are for disassembly only.
2282 defm t2DSB : T2MemB<0b0100, "dsb">;
2284 // ISB has only full system option -- for disassembly only
2285 def t2ISBsy : T2I_memb<"isb", ""> {
2286 let Inst{7-4} = 0b0110;
2287 let Inst{3-0} = 0b1111;
2290 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2291 InstrItinClass itin, string opc, string asm, string cstr,
2292 list<dag> pattern, bits<4> rt2 = 0b1111>
2293 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2294 let Inst{31-27} = 0b11101;
2295 let Inst{26-20} = 0b0001101;
2296 let Inst{11-8} = rt2;
2297 let Inst{7-6} = 0b01;
2298 let Inst{5-4} = opcod;
2299 let Inst{3-0} = 0b1111;
2301 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2302 InstrItinClass itin, string opc, string asm, string cstr,
2303 list<dag> pattern, bits<4> rt2 = 0b1111>
2304 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2305 let Inst{31-27} = 0b11101;
2306 let Inst{26-20} = 0b0001100;
2307 let Inst{11-8} = rt2;
2308 let Inst{7-6} = 0b01;
2309 let Inst{5-4} = opcod;
2312 let mayLoad = 1 in {
2313 def t2LDREXB : T2I_ldrex<0b00, (outs GPR:$dest), (ins GPR:$ptr), AddrModeNone,
2314 Size4Bytes, NoItinerary, "ldrexb", "\t$dest, [$ptr]",
2316 def t2LDREXH : T2I_ldrex<0b01, (outs GPR:$dest), (ins GPR:$ptr), AddrModeNone,
2317 Size4Bytes, NoItinerary, "ldrexh", "\t$dest, [$ptr]",
2319 def t2LDREX : Thumb2I<(outs GPR:$dest), (ins GPR:$ptr), AddrModeNone,
2320 Size4Bytes, NoItinerary,
2321 "ldrex", "\t$dest, [$ptr]", "",
2323 let Inst{31-27} = 0b11101;
2324 let Inst{26-20} = 0b0000101;
2325 let Inst{11-8} = 0b1111;
2326 let Inst{7-0} = 0b00000000; // imm8 = 0
2328 def t2LDREXD : T2I_ldrex<0b11, (outs GPR:$dest, GPR:$dest2), (ins GPR:$ptr),
2329 AddrModeNone, Size4Bytes, NoItinerary,
2330 "ldrexd", "\t$dest, $dest2, [$ptr]", "",
2334 let mayStore = 1, Constraints = "@earlyclobber $success" in {
2335 def t2STREXB : T2I_strex<0b00, (outs GPR:$success), (ins GPR:$src, GPR:$ptr),
2336 AddrModeNone, Size4Bytes, NoItinerary,
2337 "strexb", "\t$success, $src, [$ptr]", "", []>;
2338 def t2STREXH : T2I_strex<0b01, (outs GPR:$success), (ins GPR:$src, GPR:$ptr),
2339 AddrModeNone, Size4Bytes, NoItinerary,
2340 "strexh", "\t$success, $src, [$ptr]", "", []>;
2341 def t2STREX : Thumb2I<(outs GPR:$success), (ins GPR:$src, GPR:$ptr),
2342 AddrModeNone, Size4Bytes, NoItinerary,
2343 "strex", "\t$success, $src, [$ptr]", "",
2345 let Inst{31-27} = 0b11101;
2346 let Inst{26-20} = 0b0000100;
2347 let Inst{7-0} = 0b00000000; // imm8 = 0
2349 def t2STREXD : T2I_strex<0b11, (outs GPR:$success),
2350 (ins GPR:$src, GPR:$src2, GPR:$ptr),
2351 AddrModeNone, Size4Bytes, NoItinerary,
2352 "strexd", "\t$success, $src, $src2, [$ptr]", "", [],
2356 // Clear-Exclusive is for disassembly only.
2357 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2358 [/* For disassembly only; pattern left blank */]>,
2359 Requires<[IsARM, HasV7]> {
2360 let Inst{31-20} = 0xf3b;
2361 let Inst{15-14} = 0b10;
2363 let Inst{7-4} = 0b0010;
2366 //===----------------------------------------------------------------------===//
2370 // __aeabi_read_tp preserves the registers r1-r3.
2372 Defs = [R0, R12, LR, CPSR] in {
2373 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2374 "bl\t__aeabi_read_tp",
2375 [(set R0, ARMthread_pointer)]> {
2376 let Inst{31-27} = 0b11110;
2377 let Inst{15-14} = 0b11;
2382 //===----------------------------------------------------------------------===//
2383 // SJLJ Exception handling intrinsics
2384 // eh_sjlj_setjmp() is an instruction sequence to store the return
2385 // address and save #0 in R0 for the non-longjmp case.
2386 // Since by its nature we may be coming from some other function to get
2387 // here, and we're using the stack frame for the containing function to
2388 // save/restore registers, we can't keep anything live in regs across
2389 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2390 // when we get here from a longjmp(). We force everthing out of registers
2391 // except for our own input by listing the relevant registers in Defs. By
2392 // doing so, we also cause the prologue/epilogue code to actively preserve
2393 // all of the callee-saved resgisters, which is exactly what we want.
2394 // The current SP is passed in $val, and we reuse the reg as a scratch.
2396 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2397 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2398 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2400 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins GPR:$src, tGPR:$val),
2401 AddrModeNone, SizeSpecial, NoItinerary,
2402 "str\t$val, [$src, #8]\t${:comment} begin eh.setjmp\n"
2404 "\tadds\t$val, #9\n"
2405 "\tstr\t$val, [$src, #4]\n"
2408 "\tmovs\tr0, #1\t${:comment} end eh.setjmp\n"
2410 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, tGPR:$val))]>,
2411 Requires<[IsThumb2, HasVFP2]>;
2415 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ] in {
2416 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins GPR:$src, tGPR:$val),
2417 AddrModeNone, SizeSpecial, NoItinerary,
2418 "str\t$val, [$src, #8]\t${:comment} begin eh.setjmp\n"
2420 "\tadds\t$val, #9\n"
2421 "\tstr\t$val, [$src, #4]\n"
2424 "\tmovs\tr0, #1\t${:comment} end eh.setjmp\n"
2426 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, tGPR:$val))]>,
2427 Requires<[IsThumb2, NoVFP]>;
2431 //===----------------------------------------------------------------------===//
2432 // Control-Flow Instructions
2435 // FIXME: remove when we have a way to marking a MI with these properties.
2436 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2438 // FIXME: Should pc be an implicit operand like PICADD, etc?
2439 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2440 hasExtraDefRegAllocReq = 1 in
2441 def t2LDM_RET : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
2442 reglist:$dsts, variable_ops), IIC_Br,
2443 "ldm${addr:submode}${p}${addr:wide}\t$addr, $dsts",
2444 "$addr.addr = $wb", []> {
2445 let Inst{31-27} = 0b11101;
2446 let Inst{26-25} = 0b00;
2447 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
2449 let Inst{21} = 1; // The W bit.
2450 let Inst{20} = 1; // Load
2453 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2454 let isPredicable = 1 in
2455 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2457 [(br bb:$target)]> {
2458 let Inst{31-27} = 0b11110;
2459 let Inst{15-14} = 0b10;
2463 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2466 (ins GPR:$target, GPR:$index, jt2block_operand:$jt, i32imm:$id),
2467 IIC_Br, "mov\tpc, $target\n$jt",
2468 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]> {
2469 let Inst{31-27} = 0b11101;
2470 let Inst{26-20} = 0b0100100;
2471 let Inst{19-16} = 0b1111;
2472 let Inst{14-12} = 0b000;
2473 let Inst{11-8} = 0b1111; // Rd = pc
2474 let Inst{7-4} = 0b0000;
2477 // FIXME: Add a non-pc based case that can be predicated.
2480 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2481 IIC_Br, "tbb\t$index\n$jt", []> {
2482 let Inst{31-27} = 0b11101;
2483 let Inst{26-20} = 0b0001101;
2484 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2485 let Inst{15-8} = 0b11110000;
2486 let Inst{7-4} = 0b0000; // B form
2491 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2492 IIC_Br, "tbh\t$index\n$jt", []> {
2493 let Inst{31-27} = 0b11101;
2494 let Inst{26-20} = 0b0001101;
2495 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2496 let Inst{15-8} = 0b11110000;
2497 let Inst{7-4} = 0b0001; // H form
2500 // Generic versions of the above two instructions, for disassembly only
2502 def t2TBBgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2503 "tbb", "\t[$a, $b]", []>{
2504 let Inst{31-27} = 0b11101;
2505 let Inst{26-20} = 0b0001101;
2506 let Inst{15-8} = 0b11110000;
2507 let Inst{7-4} = 0b0000; // B form
2510 def t2TBHgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2511 "tbh", "\t[$a, $b, lsl #1]", []> {
2512 let Inst{31-27} = 0b11101;
2513 let Inst{26-20} = 0b0001101;
2514 let Inst{15-8} = 0b11110000;
2515 let Inst{7-4} = 0b0001; // H form
2517 } // isNotDuplicable, isIndirectBranch
2519 } // isBranch, isTerminator, isBarrier
2521 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
2522 // a two-value operand where a dag node expects two operands. :(
2523 let isBranch = 1, isTerminator = 1 in
2524 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
2526 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
2527 let Inst{31-27} = 0b11110;
2528 let Inst{15-14} = 0b10;
2534 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
2535 AddrModeNone, Size2Bytes, IIC_iALUx,
2536 "it$mask\t$cc", "", []> {
2537 // 16-bit instruction.
2538 let Inst{31-16} = 0x0000;
2539 let Inst{15-8} = 0b10111111;
2542 // Branch and Exchange Jazelle -- for disassembly only
2544 def t2BXJ : T2I<(outs), (ins GPR:$func), NoItinerary, "bxj", "\t$func",
2545 [/* For disassembly only; pattern left blank */]> {
2546 let Inst{31-27} = 0b11110;
2548 let Inst{25-20} = 0b111100;
2549 let Inst{15-14} = 0b10;
2553 // Change Processor State is a system instruction -- for disassembly only.
2554 // The singleton $opt operand contains the following information:
2555 // opt{4-0} = mode from Inst{4-0}
2556 // opt{5} = changemode from Inst{17}
2557 // opt{8-6} = AIF from Inst{8-6}
2558 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
2559 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
2560 [/* For disassembly only; pattern left blank */]> {
2561 let Inst{31-27} = 0b11110;
2563 let Inst{25-20} = 0b111010;
2564 let Inst{15-14} = 0b10;
2568 // A6.3.4 Branches and miscellaneous control
2569 // Table A6-14 Change Processor State, and hint instructions
2570 // Helper class for disassembly only.
2571 class T2I_hint<bits<8> op7_0, string opc, string asm>
2572 : T2I<(outs), (ins), NoItinerary, opc, asm,
2573 [/* For disassembly only; pattern left blank */]> {
2574 let Inst{31-20} = 0xf3a;
2575 let Inst{15-14} = 0b10;
2577 let Inst{10-8} = 0b000;
2578 let Inst{7-0} = op7_0;
2581 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
2582 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
2583 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
2584 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
2585 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
2587 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
2588 [/* For disassembly only; pattern left blank */]> {
2589 let Inst{31-20} = 0xf3a;
2590 let Inst{15-14} = 0b10;
2592 let Inst{10-8} = 0b000;
2593 let Inst{7-4} = 0b1111;
2596 // Secure Monitor Call is a system instruction -- for disassembly only
2597 // Option = Inst{19-16}
2598 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
2599 [/* For disassembly only; pattern left blank */]> {
2600 let Inst{31-27} = 0b11110;
2601 let Inst{26-20} = 0b1111111;
2602 let Inst{15-12} = 0b1000;
2605 // Store Return State is a system instruction -- for disassembly only
2606 def t2SRSDBW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
2607 [/* For disassembly only; pattern left blank */]> {
2608 let Inst{31-27} = 0b11101;
2609 let Inst{26-20} = 0b0000010; // W = 1
2612 def t2SRSDB : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
2613 [/* For disassembly only; pattern left blank */]> {
2614 let Inst{31-27} = 0b11101;
2615 let Inst{26-20} = 0b0000000; // W = 0
2618 def t2SRSIAW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
2619 [/* For disassembly only; pattern left blank */]> {
2620 let Inst{31-27} = 0b11101;
2621 let Inst{26-20} = 0b0011010; // W = 1
2624 def t2SRSIA : T2I<(outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
2625 [/* For disassembly only; pattern left blank */]> {
2626 let Inst{31-27} = 0b11101;
2627 let Inst{26-20} = 0b0011000; // W = 0
2630 // Return From Exception is a system instruction -- for disassembly only
2631 def t2RFEDBW : T2I<(outs), (ins GPR:$base), NoItinerary, "rfedb", "\t$base!",
2632 [/* For disassembly only; pattern left blank */]> {
2633 let Inst{31-27} = 0b11101;
2634 let Inst{26-20} = 0b0000011; // W = 1
2637 def t2RFEDB : T2I<(outs), (ins GPR:$base), NoItinerary, "rfeab", "\t$base",
2638 [/* For disassembly only; pattern left blank */]> {
2639 let Inst{31-27} = 0b11101;
2640 let Inst{26-20} = 0b0000001; // W = 0
2643 def t2RFEIAW : T2I<(outs), (ins GPR:$base), NoItinerary, "rfeia", "\t$base!",
2644 [/* For disassembly only; pattern left blank */]> {
2645 let Inst{31-27} = 0b11101;
2646 let Inst{26-20} = 0b0011011; // W = 1
2649 def t2RFEIA : T2I<(outs), (ins GPR:$base), NoItinerary, "rfeia", "\t$base",
2650 [/* For disassembly only; pattern left blank */]> {
2651 let Inst{31-27} = 0b11101;
2652 let Inst{26-20} = 0b0011001; // W = 0
2655 //===----------------------------------------------------------------------===//
2656 // Non-Instruction Patterns
2659 // Two piece so_imms.
2660 def : T2Pat<(or GPR:$LHS, t2_so_imm2part:$RHS),
2661 (t2ORRri (t2ORRri GPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2662 (t2_so_imm2part_2 imm:$RHS))>;
2663 def : T2Pat<(xor GPR:$LHS, t2_so_imm2part:$RHS),
2664 (t2EORri (t2EORri GPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2665 (t2_so_imm2part_2 imm:$RHS))>;
2666 def : T2Pat<(add GPR:$LHS, t2_so_imm2part:$RHS),
2667 (t2ADDri (t2ADDri GPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2668 (t2_so_imm2part_2 imm:$RHS))>;
2669 def : T2Pat<(add GPR:$LHS, t2_so_neg_imm2part:$RHS),
2670 (t2SUBri (t2SUBri GPR:$LHS, (t2_so_neg_imm2part_1 imm:$RHS)),
2671 (t2_so_neg_imm2part_2 imm:$RHS))>;
2673 // 32-bit immediate using movw + movt.
2674 // This is a single pseudo instruction to make it re-materializable. Remove
2675 // when we can do generalized remat.
2676 let isReMaterializable = 1 in
2677 def t2MOVi32imm : T2Ix2<(outs GPR:$dst), (ins i32imm:$src), IIC_iMOVi,
2678 "movw", "\t$dst, ${src:lo16}\n\tmovt${p}\t$dst, ${src:hi16}",
2679 [(set GPR:$dst, (i32 imm:$src))]>;
2681 // ConstantPool, GlobalAddress, and JumpTable
2682 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
2683 Requires<[IsThumb2, DontUseMovt]>;
2684 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
2685 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
2686 Requires<[IsThumb2, UseMovt]>;
2688 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
2689 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
2691 // Pseudo instruction that combines ldr from constpool and add pc. This should
2692 // be expanded into two instructions late to allow if-conversion and
2694 let canFoldAsLoad = 1, isReMaterializable = 1 in
2695 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
2696 NoItinerary, "${:comment} ldr.w\t$dst, $addr\n$cp:\n\tadd\t$dst, pc",
2697 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
2699 Requires<[IsThumb2]>;
2701 //===----------------------------------------------------------------------===//
2702 // Move between special register and ARM core register -- for disassembly only
2706 def t2MRS : T2I<(outs GPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, cpsr",
2707 [/* For disassembly only; pattern left blank */]> {
2708 let Inst{31-27} = 0b11110;
2710 let Inst{25-21} = 0b11111;
2711 let Inst{20} = 0; // The R bit.
2712 let Inst{15-14} = 0b10;
2717 def t2MRSsys : T2I<(outs GPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, spsr",
2718 [/* For disassembly only; pattern left blank */]> {
2719 let Inst{31-27} = 0b11110;
2721 let Inst{25-21} = 0b11111;
2722 let Inst{20} = 1; // The R bit.
2723 let Inst{15-14} = 0b10;
2728 def t2MSR : T2I<(outs), (ins GPR:$src, msr_mask:$mask), NoItinerary, "msr",
2729 "\tcpsr$mask, $src",
2730 [/* For disassembly only; pattern left blank */]> {
2731 let Inst{31-27} = 0b11110;
2733 let Inst{25-21} = 0b11100;
2734 let Inst{20} = 0; // The R bit.
2735 let Inst{15-14} = 0b10;
2740 def t2MSRsys : T2I<(outs), (ins GPR:$src, msr_mask:$mask), NoItinerary, "msr",
2741 "\tspsr$mask, $src",
2742 [/* For disassembly only; pattern left blank */]> {
2743 let Inst{31-27} = 0b11110;
2745 let Inst{25-21} = 0b11100;
2746 let Inst{20} = 1; // The R bit.
2747 let Inst{15-14} = 0b10;