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 rGPR, 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>, PatLeaf<(imm), [{ return Pred_t2_so_imm(N); }]>;
56 // t2_so_imm_not - Match an immediate that is a complement
58 def t2_so_imm_not : Operand<i32>,
60 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
61 }], t2_so_imm_not_XFORM>;
63 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
64 def t2_so_imm_neg : Operand<i32>,
66 return ARM_AM::getT2SOImmVal(-((int)N->getZExtValue())) != -1;
67 }], t2_so_imm_neg_XFORM>;
69 // Break t2_so_imm's up into two pieces. This handles immediates with up to 16
70 // bits set in them. This uses t2_so_imm2part to match and t2_so_imm2part_[12]
71 // to get the first/second pieces.
72 def t2_so_imm2part : Operand<i32>,
74 return ARM_AM::isT2SOImmTwoPartVal((unsigned)N->getZExtValue());
78 def t2_so_imm2part_1 : SDNodeXForm<imm, [{
79 unsigned V = ARM_AM::getT2SOImmTwoPartFirst((unsigned)N->getZExtValue());
80 return CurDAG->getTargetConstant(V, MVT::i32);
83 def t2_so_imm2part_2 : SDNodeXForm<imm, [{
84 unsigned V = ARM_AM::getT2SOImmTwoPartSecond((unsigned)N->getZExtValue());
85 return CurDAG->getTargetConstant(V, MVT::i32);
88 def t2_so_neg_imm2part : Operand<i32>, PatLeaf<(imm), [{
89 return ARM_AM::isT2SOImmTwoPartVal(-(int)N->getZExtValue());
93 def t2_so_neg_imm2part_1 : SDNodeXForm<imm, [{
94 unsigned V = ARM_AM::getT2SOImmTwoPartFirst(-(int)N->getZExtValue());
95 return CurDAG->getTargetConstant(V, MVT::i32);
98 def t2_so_neg_imm2part_2 : SDNodeXForm<imm, [{
99 unsigned V = ARM_AM::getT2SOImmTwoPartSecond(-(int)N->getZExtValue());
100 return CurDAG->getTargetConstant(V, MVT::i32);
103 /// imm1_31 predicate - True if the 32-bit immediate is in the range [1,31].
104 def imm1_31 : PatLeaf<(i32 imm), [{
105 return (int32_t)N->getZExtValue() >= 1 && (int32_t)N->getZExtValue() < 32;
108 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
109 def imm0_4095 : Operand<i32>,
110 PatLeaf<(i32 imm), [{
111 return (uint32_t)N->getZExtValue() < 4096;
114 def imm0_4095_neg : PatLeaf<(i32 imm), [{
115 return (uint32_t)(-N->getZExtValue()) < 4096;
118 def imm0_255_neg : PatLeaf<(i32 imm), [{
119 return (uint32_t)(-N->getZExtValue()) < 255;
122 def imm0_255_not : PatLeaf<(i32 imm), [{
123 return (uint32_t)(~N->getZExtValue()) < 255;
126 // Define Thumb2 specific addressing modes.
128 // t2addrmode_imm12 := reg + imm12
129 def t2addrmode_imm12 : Operand<i32>,
130 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
131 let PrintMethod = "printAddrModeImm12Operand";
132 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
135 // t2addrmode_imm8 := reg +/- imm8
136 def t2addrmode_imm8 : Operand<i32>,
137 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
138 let PrintMethod = "printT2AddrModeImm8Operand";
139 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
142 def t2am_imm8_offset : Operand<i32>,
143 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
144 [], [SDNPWantRoot]> {
145 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
148 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
149 def t2addrmode_imm8s4 : Operand<i32> {
150 let PrintMethod = "printT2AddrModeImm8s4Operand";
151 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
154 def t2am_imm8s4_offset : Operand<i32> {
155 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
158 // t2addrmode_so_reg := reg + (reg << imm2)
159 def t2addrmode_so_reg : Operand<i32>,
160 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
161 let PrintMethod = "printT2AddrModeSoRegOperand";
162 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
166 //===----------------------------------------------------------------------===//
167 // Multiclass helpers...
170 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
171 /// unary operation that produces a value. These are predicable and can be
172 /// changed to modify CPSR.
173 multiclass T2I_un_irs<bits<4> opcod, string opc,
174 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
175 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
177 def i : T2sI<(outs rGPR:$dst), (ins t2_so_imm:$src), iii,
179 [(set rGPR:$dst, (opnode t2_so_imm:$src))]> {
180 let isAsCheapAsAMove = Cheap;
181 let isReMaterializable = ReMat;
182 let Inst{31-27} = 0b11110;
184 let Inst{24-21} = opcod;
185 let Inst{20} = ?; // The S bit.
186 let Inst{19-16} = 0b1111; // Rn
190 def r : T2sI<(outs rGPR:$dst), (ins rGPR:$src), iir,
191 opc, ".w\t$dst, $src",
192 [(set rGPR:$dst, (opnode rGPR:$src))]> {
193 let Inst{31-27} = 0b11101;
194 let Inst{26-25} = 0b01;
195 let Inst{24-21} = opcod;
196 let Inst{20} = ?; // The S bit.
197 let Inst{19-16} = 0b1111; // Rn
198 let Inst{14-12} = 0b000; // imm3
199 let Inst{7-6} = 0b00; // imm2
200 let Inst{5-4} = 0b00; // type
203 def s : T2sI<(outs rGPR:$dst), (ins t2_so_reg:$src), iis,
204 opc, ".w\t$dst, $src",
205 [(set rGPR:$dst, (opnode t2_so_reg:$src))]> {
206 let Inst{31-27} = 0b11101;
207 let Inst{26-25} = 0b01;
208 let Inst{24-21} = opcod;
209 let Inst{20} = ?; // The S bit.
210 let Inst{19-16} = 0b1111; // Rn
214 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
215 /// binary operation that produces a value. These are predicable and can be
216 /// changed to modify CPSR.
217 multiclass T2I_bin_irs<bits<4> opcod, string opc,
218 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
219 PatFrag opnode, bit Commutable = 0, string wide = ""> {
221 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), iii,
222 opc, "\t$dst, $lhs, $rhs",
223 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]> {
224 let Inst{31-27} = 0b11110;
226 let Inst{24-21} = opcod;
227 let Inst{20} = ?; // The S bit.
231 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), iir,
232 opc, !strconcat(wide, "\t$dst, $lhs, $rhs"),
233 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]> {
234 let isCommutable = Commutable;
235 let Inst{31-27} = 0b11101;
236 let Inst{26-25} = 0b01;
237 let Inst{24-21} = opcod;
238 let Inst{20} = ?; // The S bit.
239 let Inst{14-12} = 0b000; // imm3
240 let Inst{7-6} = 0b00; // imm2
241 let Inst{5-4} = 0b00; // type
244 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), iis,
245 opc, !strconcat(wide, "\t$dst, $lhs, $rhs"),
246 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]> {
247 let Inst{31-27} = 0b11101;
248 let Inst{26-25} = 0b01;
249 let Inst{24-21} = opcod;
250 let Inst{20} = ?; // The S bit.
254 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
255 // the ".w" prefix to indicate that they are wide.
256 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
257 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
258 PatFrag opnode, bit Commutable = 0> :
259 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w">;
261 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
262 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
263 /// it is equivalent to the T2I_bin_irs counterpart.
264 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
266 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_imm:$lhs), IIC_iALUi,
267 opc, ".w\t$dst, $rhs, $lhs",
268 [(set rGPR:$dst, (opnode t2_so_imm:$lhs, rGPR:$rhs))]> {
269 let Inst{31-27} = 0b11110;
271 let Inst{24-21} = opcod;
272 let Inst{20} = ?; // The S bit.
276 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$rhs, rGPR:$lhs), IIC_iALUr,
277 opc, "\t$dst, $rhs, $lhs",
278 [/* For disassembly only; pattern left blank */]> {
279 let Inst{31-27} = 0b11101;
280 let Inst{26-25} = 0b01;
281 let Inst{24-21} = opcod;
282 let Inst{20} = ?; // The S bit.
283 let Inst{14-12} = 0b000; // imm3
284 let Inst{7-6} = 0b00; // imm2
285 let Inst{5-4} = 0b00; // type
288 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_reg:$lhs), IIC_iALUsir,
289 opc, "\t$dst, $rhs, $lhs",
290 [(set rGPR:$dst, (opnode t2_so_reg:$lhs, rGPR:$rhs))]> {
291 let Inst{31-27} = 0b11101;
292 let Inst{26-25} = 0b01;
293 let Inst{24-21} = opcod;
294 let Inst{20} = ?; // The S bit.
298 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
299 /// instruction modifies the CPSR register.
300 let Defs = [CPSR] in {
301 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
302 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
303 PatFrag opnode, bit Commutable = 0> {
305 def ri : T2I<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), iii,
306 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
307 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
308 let Inst{31-27} = 0b11110;
310 let Inst{24-21} = opcod;
311 let Inst{20} = 1; // The S bit.
315 def rr : T2I<(outs rGPR:$dst), (ins GPR:$lhs, rGPR:$rhs), iir,
316 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
317 [(set rGPR:$dst, (opnode GPR:$lhs, rGPR:$rhs))]> {
318 let isCommutable = Commutable;
319 let Inst{31-27} = 0b11101;
320 let Inst{26-25} = 0b01;
321 let Inst{24-21} = opcod;
322 let Inst{20} = 1; // The S bit.
323 let Inst{14-12} = 0b000; // imm3
324 let Inst{7-6} = 0b00; // imm2
325 let Inst{5-4} = 0b00; // type
328 def rs : T2I<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), iis,
329 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
330 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
331 let Inst{31-27} = 0b11101;
332 let Inst{26-25} = 0b01;
333 let Inst{24-21} = opcod;
334 let Inst{20} = 1; // The S bit.
339 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
340 /// patterns for a binary operation that produces a value.
341 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
342 bit Commutable = 0> {
344 // The register-immediate version is re-materializable. This is useful
345 // in particular for taking the address of a local.
346 let isReMaterializable = 1 in {
347 def ri : T2sI<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
348 opc, ".w\t$dst, $lhs, $rhs",
349 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
350 let Inst{31-27} = 0b11110;
353 let Inst{23-21} = op23_21;
354 let Inst{20} = 0; // The S bit.
359 def ri12 : T2I<(outs rGPR:$dst), (ins GPR:$lhs, imm0_4095:$rhs), IIC_iALUi,
360 !strconcat(opc, "w"), "\t$dst, $lhs, $rhs",
361 [(set rGPR:$dst, (opnode GPR:$lhs, imm0_4095:$rhs))]> {
362 let Inst{31-27} = 0b11110;
365 let Inst{23-21} = op23_21;
366 let Inst{20} = 0; // The S bit.
370 def rr : T2sI<(outs rGPR:$dst), (ins GPR:$lhs, rGPR:$rhs), IIC_iALUr,
371 opc, ".w\t$dst, $lhs, $rhs",
372 [(set rGPR:$dst, (opnode GPR:$lhs, rGPR:$rhs))]> {
373 let isCommutable = Commutable;
374 let Inst{31-27} = 0b11101;
375 let Inst{26-25} = 0b01;
377 let Inst{23-21} = op23_21;
378 let Inst{20} = 0; // The S bit.
379 let Inst{14-12} = 0b000; // imm3
380 let Inst{7-6} = 0b00; // imm2
381 let Inst{5-4} = 0b00; // type
384 def rs : T2sI<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
385 opc, ".w\t$dst, $lhs, $rhs",
386 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
387 let Inst{31-27} = 0b11101;
388 let Inst{26-25} = 0b01;
390 let Inst{23-21} = op23_21;
391 let Inst{20} = 0; // The S bit.
395 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
396 /// for a binary operation that produces a value and use the carry
397 /// bit. It's not predicable.
398 let Uses = [CPSR] in {
399 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
400 bit Commutable = 0> {
402 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
403 opc, "\t$dst, $lhs, $rhs",
404 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]>,
405 Requires<[IsThumb2]> {
406 let Inst{31-27} = 0b11110;
408 let Inst{24-21} = opcod;
409 let Inst{20} = 0; // The S bit.
413 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iALUr,
414 opc, ".w\t$dst, $lhs, $rhs",
415 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]>,
416 Requires<[IsThumb2]> {
417 let isCommutable = Commutable;
418 let Inst{31-27} = 0b11101;
419 let Inst{26-25} = 0b01;
420 let Inst{24-21} = opcod;
421 let Inst{20} = 0; // The S bit.
422 let Inst{14-12} = 0b000; // imm3
423 let Inst{7-6} = 0b00; // imm2
424 let Inst{5-4} = 0b00; // type
427 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
428 opc, ".w\t$dst, $lhs, $rhs",
429 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]>,
430 Requires<[IsThumb2]> {
431 let Inst{31-27} = 0b11101;
432 let Inst{26-25} = 0b01;
433 let Inst{24-21} = opcod;
434 let Inst{20} = 0; // The S bit.
438 // Carry setting variants
439 let Defs = [CPSR] in {
440 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
441 bit Commutable = 0> {
443 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
444 opc, "\t$dst, $lhs, $rhs",
445 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]>,
446 Requires<[IsThumb2]> {
447 let Inst{31-27} = 0b11110;
449 let Inst{24-21} = opcod;
450 let Inst{20} = 1; // The S bit.
454 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iALUr,
455 opc, ".w\t$dst, $lhs, $rhs",
456 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]>,
457 Requires<[IsThumb2]> {
458 let isCommutable = Commutable;
459 let Inst{31-27} = 0b11101;
460 let Inst{26-25} = 0b01;
461 let Inst{24-21} = opcod;
462 let Inst{20} = 1; // The S bit.
463 let Inst{14-12} = 0b000; // imm3
464 let Inst{7-6} = 0b00; // imm2
465 let Inst{5-4} = 0b00; // type
468 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
469 opc, ".w\t$dst, $lhs, $rhs",
470 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]>,
471 Requires<[IsThumb2]> {
472 let Inst{31-27} = 0b11101;
473 let Inst{26-25} = 0b01;
474 let Inst{24-21} = opcod;
475 let Inst{20} = 1; // The S bit.
481 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
482 /// version is not needed since this is only for codegen.
483 let Defs = [CPSR] in {
484 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
486 def ri : T2I<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_imm:$lhs), IIC_iALUi,
487 !strconcat(opc, "s"), ".w\t$dst, $rhs, $lhs",
488 [(set rGPR:$dst, (opnode t2_so_imm:$lhs, rGPR:$rhs))]> {
489 let Inst{31-27} = 0b11110;
491 let Inst{24-21} = opcod;
492 let Inst{20} = 1; // The S bit.
496 def rs : T2I<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_reg:$lhs), IIC_iALUsi,
497 !strconcat(opc, "s"), "\t$dst, $rhs, $lhs",
498 [(set rGPR:$dst, (opnode t2_so_reg:$lhs, rGPR:$rhs))]> {
499 let Inst{31-27} = 0b11101;
500 let Inst{26-25} = 0b01;
501 let Inst{24-21} = opcod;
502 let Inst{20} = 1; // The S bit.
507 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
508 // rotate operation that produces a value.
509 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
511 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
512 opc, ".w\t$dst, $lhs, $rhs",
513 [(set rGPR:$dst, (opnode rGPR:$lhs, imm1_31:$rhs))]> {
514 let Inst{31-27} = 0b11101;
515 let Inst{26-21} = 0b010010;
516 let Inst{19-16} = 0b1111; // Rn
517 let Inst{5-4} = opcod;
520 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iMOVsr,
521 opc, ".w\t$dst, $lhs, $rhs",
522 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]> {
523 let Inst{31-27} = 0b11111;
524 let Inst{26-23} = 0b0100;
525 let Inst{22-21} = opcod;
526 let Inst{15-12} = 0b1111;
527 let Inst{7-4} = 0b0000;
531 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
532 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
533 /// a explicit result, only implicitly set CPSR.
534 let isCompare = 1, Defs = [CPSR] in {
535 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
536 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
539 def ri : T2I<(outs), (ins GPR:$lhs, t2_so_imm:$rhs), iii,
540 opc, ".w\t$lhs, $rhs",
541 [(opnode GPR:$lhs, t2_so_imm:$rhs)]> {
542 let Inst{31-27} = 0b11110;
544 let Inst{24-21} = opcod;
545 let Inst{20} = 1; // The S bit.
547 let Inst{11-8} = 0b1111; // Rd
550 def rr : T2I<(outs), (ins GPR:$lhs, rGPR:$rhs), iir,
551 opc, ".w\t$lhs, $rhs",
552 [(opnode GPR:$lhs, rGPR:$rhs)]> {
553 let Inst{31-27} = 0b11101;
554 let Inst{26-25} = 0b01;
555 let Inst{24-21} = opcod;
556 let Inst{20} = 1; // The S bit.
557 let Inst{14-12} = 0b000; // imm3
558 let Inst{11-8} = 0b1111; // Rd
559 let Inst{7-6} = 0b00; // imm2
560 let Inst{5-4} = 0b00; // type
563 def rs : T2I<(outs), (ins GPR:$lhs, t2_so_reg:$rhs), iis,
564 opc, ".w\t$lhs, $rhs",
565 [(opnode GPR:$lhs, t2_so_reg:$rhs)]> {
566 let Inst{31-27} = 0b11101;
567 let Inst{26-25} = 0b01;
568 let Inst{24-21} = opcod;
569 let Inst{20} = 1; // The S bit.
570 let Inst{11-8} = 0b1111; // Rd
575 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
576 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
577 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
578 def i12 : T2Ii12<(outs GPR:$dst), (ins t2addrmode_imm12:$addr), iii,
579 opc, ".w\t$dst, $addr",
580 [(set GPR:$dst, (opnode t2addrmode_imm12:$addr))]> {
581 let Inst{31-27} = 0b11111;
582 let Inst{26-25} = 0b00;
583 let Inst{24} = signed;
585 let Inst{22-21} = opcod;
586 let Inst{20} = 1; // load
588 def i8 : T2Ii8 <(outs GPR:$dst), (ins t2addrmode_imm8:$addr), iii,
589 opc, "\t$dst, $addr",
590 [(set GPR:$dst, (opnode t2addrmode_imm8:$addr))]> {
591 let Inst{31-27} = 0b11111;
592 let Inst{26-25} = 0b00;
593 let Inst{24} = signed;
595 let Inst{22-21} = opcod;
596 let Inst{20} = 1; // load
598 // Offset: index==TRUE, wback==FALSE
599 let Inst{10} = 1; // The P bit.
600 let Inst{8} = 0; // The W bit.
602 def s : T2Iso <(outs GPR:$dst), (ins t2addrmode_so_reg:$addr), iis,
603 opc, ".w\t$dst, $addr",
604 [(set GPR:$dst, (opnode t2addrmode_so_reg:$addr))]> {
605 let Inst{31-27} = 0b11111;
606 let Inst{26-25} = 0b00;
607 let Inst{24} = signed;
609 let Inst{22-21} = opcod;
610 let Inst{20} = 1; // load
611 let Inst{11-6} = 0b000000;
613 def pci : T2Ipc <(outs GPR:$dst), (ins i32imm:$addr), iii,
614 opc, ".w\t$dst, $addr",
615 [(set GPR:$dst, (opnode (ARMWrapper tconstpool:$addr)))]> {
616 let isReMaterializable = 1;
617 let Inst{31-27} = 0b11111;
618 let Inst{26-25} = 0b00;
619 let Inst{24} = signed;
620 let Inst{23} = ?; // add = (U == '1')
621 let Inst{22-21} = opcod;
622 let Inst{20} = 1; // load
623 let Inst{19-16} = 0b1111; // Rn
627 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
628 multiclass T2I_st<bits<2> opcod, string opc,
629 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
630 def i12 : T2Ii12<(outs), (ins GPR:$src, t2addrmode_imm12:$addr), iii,
631 opc, ".w\t$src, $addr",
632 [(opnode GPR:$src, t2addrmode_imm12:$addr)]> {
633 let Inst{31-27} = 0b11111;
634 let Inst{26-23} = 0b0001;
635 let Inst{22-21} = opcod;
636 let Inst{20} = 0; // !load
638 def i8 : T2Ii8 <(outs), (ins GPR:$src, t2addrmode_imm8:$addr), iii,
639 opc, "\t$src, $addr",
640 [(opnode GPR:$src, t2addrmode_imm8:$addr)]> {
641 let Inst{31-27} = 0b11111;
642 let Inst{26-23} = 0b0000;
643 let Inst{22-21} = opcod;
644 let Inst{20} = 0; // !load
646 // Offset: index==TRUE, wback==FALSE
647 let Inst{10} = 1; // The P bit.
648 let Inst{8} = 0; // The W bit.
650 def s : T2Iso <(outs), (ins GPR:$src, t2addrmode_so_reg:$addr), iis,
651 opc, ".w\t$src, $addr",
652 [(opnode GPR:$src, t2addrmode_so_reg:$addr)]> {
653 let Inst{31-27} = 0b11111;
654 let Inst{26-23} = 0b0000;
655 let Inst{22-21} = opcod;
656 let Inst{20} = 0; // !load
657 let Inst{11-6} = 0b000000;
661 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
662 /// register and one whose operand is a register rotated by 8/16/24.
663 multiclass T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> {
664 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iEXTr,
665 opc, ".w\t$dst, $src",
666 [(set rGPR:$dst, (opnode rGPR:$src))]> {
667 let Inst{31-27} = 0b11111;
668 let Inst{26-23} = 0b0100;
669 let Inst{22-20} = opcod;
670 let Inst{19-16} = 0b1111; // Rn
671 let Inst{15-12} = 0b1111;
673 let Inst{5-4} = 0b00; // rotate
675 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iEXTr,
676 opc, ".w\t$dst, $src, ror $rot",
677 [(set rGPR:$dst, (opnode (rotr rGPR:$src, rot_imm:$rot)))]> {
678 let Inst{31-27} = 0b11111;
679 let Inst{26-23} = 0b0100;
680 let Inst{22-20} = opcod;
681 let Inst{19-16} = 0b1111; // Rn
682 let Inst{15-12} = 0b1111;
684 let Inst{5-4} = {?,?}; // rotate
688 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
689 multiclass T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
690 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iEXTr,
692 [(set rGPR:$dst, (opnode rGPR:$src))]>,
693 Requires<[HasT2ExtractPack, IsThumb2]> {
694 let Inst{31-27} = 0b11111;
695 let Inst{26-23} = 0b0100;
696 let Inst{22-20} = opcod;
697 let Inst{19-16} = 0b1111; // Rn
698 let Inst{15-12} = 0b1111;
700 let Inst{5-4} = 0b00; // rotate
702 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iEXTr,
703 opc, "\t$dst, $src, ror $rot",
704 [(set rGPR:$dst, (opnode (rotr rGPR:$src, rot_imm:$rot)))]>,
705 Requires<[HasT2ExtractPack, IsThumb2]> {
706 let Inst{31-27} = 0b11111;
707 let Inst{26-23} = 0b0100;
708 let Inst{22-20} = opcod;
709 let Inst{19-16} = 0b1111; // Rn
710 let Inst{15-12} = 0b1111;
712 let Inst{5-4} = {?,?}; // rotate
716 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
718 multiclass T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> {
719 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iEXTr,
720 opc, "\t$dst, $src", []> {
721 let Inst{31-27} = 0b11111;
722 let Inst{26-23} = 0b0100;
723 let Inst{22-20} = opcod;
724 let Inst{19-16} = 0b1111; // Rn
725 let Inst{15-12} = 0b1111;
727 let Inst{5-4} = 0b00; // rotate
729 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iEXTr,
730 opc, "\t$dst, $src, ror $rot", []> {
731 let Inst{31-27} = 0b11111;
732 let Inst{26-23} = 0b0100;
733 let Inst{22-20} = opcod;
734 let Inst{19-16} = 0b1111; // Rn
735 let Inst{15-12} = 0b1111;
737 let Inst{5-4} = {?,?}; // rotate
741 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
742 /// register and one whose operand is a register rotated by 8/16/24.
743 multiclass T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> {
744 def rr : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS), IIC_iEXTAr,
745 opc, "\t$dst, $LHS, $RHS",
746 [(set rGPR:$dst, (opnode rGPR:$LHS, rGPR:$RHS))]>,
747 Requires<[HasT2ExtractPack, IsThumb2]> {
748 let Inst{31-27} = 0b11111;
749 let Inst{26-23} = 0b0100;
750 let Inst{22-20} = opcod;
751 let Inst{15-12} = 0b1111;
753 let Inst{5-4} = 0b00; // rotate
755 def rr_rot : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS, i32imm:$rot),
756 IIC_iEXTAsr, opc, "\t$dst, $LHS, $RHS, ror $rot",
757 [(set rGPR:$dst, (opnode rGPR:$LHS,
758 (rotr rGPR:$RHS, rot_imm:$rot)))]>,
759 Requires<[HasT2ExtractPack, IsThumb2]> {
760 let Inst{31-27} = 0b11111;
761 let Inst{26-23} = 0b0100;
762 let Inst{22-20} = opcod;
763 let Inst{15-12} = 0b1111;
765 let Inst{5-4} = {?,?}; // rotate
769 // DO variant - disassembly only, no pattern
771 multiclass T2I_exta_rrot_DO<bits<3> opcod, string opc> {
772 def rr : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS), IIC_iEXTAr,
773 opc, "\t$dst, $LHS, $RHS", []> {
774 let Inst{31-27} = 0b11111;
775 let Inst{26-23} = 0b0100;
776 let Inst{22-20} = opcod;
777 let Inst{15-12} = 0b1111;
779 let Inst{5-4} = 0b00; // rotate
781 def rr_rot : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS, i32imm:$rot),
782 IIC_iEXTAsr, opc, "\t$dst, $LHS, $RHS, ror $rot", []> {
783 let Inst{31-27} = 0b11111;
784 let Inst{26-23} = 0b0100;
785 let Inst{22-20} = opcod;
786 let Inst{15-12} = 0b1111;
788 let Inst{5-4} = {?,?}; // rotate
792 //===----------------------------------------------------------------------===//
794 //===----------------------------------------------------------------------===//
796 //===----------------------------------------------------------------------===//
797 // Miscellaneous Instructions.
800 // LEApcrel - Load a pc-relative address into a register without offending the
802 let neverHasSideEffects = 1 in {
803 let isReMaterializable = 1 in
804 def t2LEApcrel : T2XI<(outs rGPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
805 "adr${p}.w\t$dst, #$label", []> {
806 let Inst{31-27} = 0b11110;
807 let Inst{25-24} = 0b10;
808 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
811 let Inst{19-16} = 0b1111; // Rn
814 } // neverHasSideEffects
815 def t2LEApcrelJT : T2XI<(outs rGPR:$dst),
816 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
817 "adr${p}.w\t$dst, #${label}_${id}", []> {
818 let Inst{31-27} = 0b11110;
819 let Inst{25-24} = 0b10;
820 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
823 let Inst{19-16} = 0b1111; // Rn
827 // ADD r, sp, {so_imm|i12}
828 def t2ADDrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
829 IIC_iALUi, "add", ".w\t$dst, $sp, $imm", []> {
830 let Inst{31-27} = 0b11110;
832 let Inst{24-21} = 0b1000;
833 let Inst{20} = ?; // The S bit.
834 let Inst{19-16} = 0b1101; // Rn = sp
837 def t2ADDrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
838 IIC_iALUi, "addw", "\t$dst, $sp, $imm", []> {
839 let Inst{31-27} = 0b11110;
841 let Inst{24-21} = 0b0000;
842 let Inst{20} = 0; // The S bit.
843 let Inst{19-16} = 0b1101; // Rn = sp
848 def t2ADDrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
849 IIC_iALUsi, "add", ".w\t$dst, $sp, $rhs", []> {
850 let Inst{31-27} = 0b11101;
851 let Inst{26-25} = 0b01;
852 let Inst{24-21} = 0b1000;
853 let Inst{20} = ?; // The S bit.
854 let Inst{19-16} = 0b1101; // Rn = sp
858 // SUB r, sp, {so_imm|i12}
859 def t2SUBrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
860 IIC_iALUi, "sub", ".w\t$dst, $sp, $imm", []> {
861 let Inst{31-27} = 0b11110;
863 let Inst{24-21} = 0b1101;
864 let Inst{20} = ?; // The S bit.
865 let Inst{19-16} = 0b1101; // Rn = sp
868 def t2SUBrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
869 IIC_iALUi, "subw", "\t$dst, $sp, $imm", []> {
870 let Inst{31-27} = 0b11110;
872 let Inst{24-21} = 0b0101;
873 let Inst{20} = 0; // The S bit.
874 let Inst{19-16} = 0b1101; // Rn = sp
879 def t2SUBrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
881 "sub", "\t$dst, $sp, $rhs", []> {
882 let Inst{31-27} = 0b11101;
883 let Inst{26-25} = 0b01;
884 let Inst{24-21} = 0b1101;
885 let Inst{20} = ?; // The S bit.
886 let Inst{19-16} = 0b1101; // Rn = sp
890 // Signed and unsigned division on v7-M
891 def t2SDIV : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iALUi,
892 "sdiv", "\t$dst, $a, $b",
893 [(set rGPR:$dst, (sdiv rGPR:$a, rGPR:$b))]>,
894 Requires<[HasDivide]> {
895 let Inst{31-27} = 0b11111;
896 let Inst{26-21} = 0b011100;
898 let Inst{15-12} = 0b1111;
899 let Inst{7-4} = 0b1111;
902 def t2UDIV : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iALUi,
903 "udiv", "\t$dst, $a, $b",
904 [(set rGPR:$dst, (udiv rGPR:$a, rGPR:$b))]>,
905 Requires<[HasDivide]> {
906 let Inst{31-27} = 0b11111;
907 let Inst{26-21} = 0b011101;
909 let Inst{15-12} = 0b1111;
910 let Inst{7-4} = 0b1111;
913 //===----------------------------------------------------------------------===//
914 // Load / store Instructions.
918 let canFoldAsLoad = 1, isReMaterializable = 1 in
919 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
920 UnOpFrag<(load node:$Src)>>;
922 // Loads with zero extension
923 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
924 UnOpFrag<(zextloadi16 node:$Src)>>;
925 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
926 UnOpFrag<(zextloadi8 node:$Src)>>;
928 // Loads with sign extension
929 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
930 UnOpFrag<(sextloadi16 node:$Src)>>;
931 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
932 UnOpFrag<(sextloadi8 node:$Src)>>;
934 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1,
935 isCodeGenOnly = 1 in { // $dst doesn't exist in asmstring?
937 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
938 (ins t2addrmode_imm8s4:$addr),
939 IIC_iLoad_d_i, "ldrd", "\t$dst1, $addr", []>;
940 def t2LDRDpci : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
941 (ins i32imm:$addr), IIC_iLoad_d_i,
942 "ldrd", "\t$dst1, $addr", []> {
943 let Inst{19-16} = 0b1111; // Rn
945 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
947 // zextload i1 -> zextload i8
948 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
949 (t2LDRBi12 t2addrmode_imm12:$addr)>;
950 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
951 (t2LDRBi8 t2addrmode_imm8:$addr)>;
952 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
953 (t2LDRBs t2addrmode_so_reg:$addr)>;
954 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
955 (t2LDRBpci tconstpool:$addr)>;
957 // extload -> zextload
958 // FIXME: Reduce the number of patterns by legalizing extload to zextload
960 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
961 (t2LDRBi12 t2addrmode_imm12:$addr)>;
962 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
963 (t2LDRBi8 t2addrmode_imm8:$addr)>;
964 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
965 (t2LDRBs t2addrmode_so_reg:$addr)>;
966 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
967 (t2LDRBpci tconstpool:$addr)>;
969 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
970 (t2LDRBi12 t2addrmode_imm12:$addr)>;
971 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
972 (t2LDRBi8 t2addrmode_imm8:$addr)>;
973 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
974 (t2LDRBs t2addrmode_so_reg:$addr)>;
975 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
976 (t2LDRBpci tconstpool:$addr)>;
978 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
979 (t2LDRHi12 t2addrmode_imm12:$addr)>;
980 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
981 (t2LDRHi8 t2addrmode_imm8:$addr)>;
982 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
983 (t2LDRHs t2addrmode_so_reg:$addr)>;
984 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
985 (t2LDRHpci tconstpool:$addr)>;
987 // FIXME: The destination register of the loads and stores can't be PC, but
988 // can be SP. We need another regclass (similar to rGPR) to represent
989 // that. Not a pressing issue since these are selected manually,
993 let mayLoad = 1, neverHasSideEffects = 1 in {
994 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$dst, GPR:$base_wb),
995 (ins t2addrmode_imm8:$addr),
996 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
997 "ldr", "\t$dst, $addr!", "$addr.base = $base_wb",
1000 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1001 (ins GPR:$base, t2am_imm8_offset:$offset),
1002 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1003 "ldr", "\t$dst, [$base], $offset", "$base = $base_wb",
1006 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1007 (ins t2addrmode_imm8:$addr),
1008 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1009 "ldrb", "\t$dst, $addr!", "$addr.base = $base_wb",
1011 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1012 (ins GPR:$base, t2am_imm8_offset:$offset),
1013 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1014 "ldrb", "\t$dst, [$base], $offset", "$base = $base_wb",
1017 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1018 (ins t2addrmode_imm8:$addr),
1019 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1020 "ldrh", "\t$dst, $addr!", "$addr.base = $base_wb",
1022 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1023 (ins GPR:$base, t2am_imm8_offset:$offset),
1024 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1025 "ldrh", "\t$dst, [$base], $offset", "$base = $base_wb",
1028 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1029 (ins t2addrmode_imm8:$addr),
1030 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1031 "ldrsb", "\t$dst, $addr!", "$addr.base = $base_wb",
1033 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1034 (ins GPR:$base, t2am_imm8_offset:$offset),
1035 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1036 "ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb",
1039 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1040 (ins t2addrmode_imm8:$addr),
1041 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1042 "ldrsh", "\t$dst, $addr!", "$addr.base = $base_wb",
1044 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1045 (ins GPR:$base, t2am_imm8_offset:$offset),
1046 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1047 "ldrsh", "\t$dst, [$base], $offset", "$base = $base_wb",
1049 } // mayLoad = 1, neverHasSideEffects = 1
1051 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1052 // for disassembly only.
1053 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1054 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1055 : T2Ii8<(outs GPR:$dst), (ins t2addrmode_imm8:$addr), ii, opc,
1056 "\t$dst, $addr", []> {
1057 let Inst{31-27} = 0b11111;
1058 let Inst{26-25} = 0b00;
1059 let Inst{24} = signed;
1061 let Inst{22-21} = type;
1062 let Inst{20} = 1; // load
1064 let Inst{10-8} = 0b110; // PUW.
1067 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1068 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1069 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1070 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1071 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1074 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1075 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1076 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1077 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1078 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1079 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1082 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1,
1083 isCodeGenOnly = 1 in // $src2 doesn't exist in asm string
1084 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1085 (ins GPR:$src1, GPR:$src2, t2addrmode_imm8s4:$addr),
1086 IIC_iStore_d_r, "strd", "\t$src1, $addr", []>;
1089 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1090 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1091 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1092 "str", "\t$src, [$base, $offset]!", "$base = $base_wb",
1094 (pre_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1096 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1097 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1098 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1099 "str", "\t$src, [$base], $offset", "$base = $base_wb",
1101 (post_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1103 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1104 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1105 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1106 "strh", "\t$src, [$base, $offset]!", "$base = $base_wb",
1108 (pre_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1110 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1111 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1112 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1113 "strh", "\t$src, [$base], $offset", "$base = $base_wb",
1115 (post_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1117 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1118 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1119 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1120 "strb", "\t$src, [$base, $offset]!", "$base = $base_wb",
1122 (pre_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1124 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1125 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1126 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1127 "strb", "\t$src, [$base], $offset", "$base = $base_wb",
1129 (post_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1131 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1133 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1134 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1135 : T2Ii8<(outs GPR:$src), (ins t2addrmode_imm8:$addr), ii, opc,
1136 "\t$src, $addr", []> {
1137 let Inst{31-27} = 0b11111;
1138 let Inst{26-25} = 0b00;
1139 let Inst{24} = 0; // not signed
1141 let Inst{22-21} = type;
1142 let Inst{20} = 0; // store
1144 let Inst{10-8} = 0b110; // PUW
1147 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1148 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1149 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1151 // ldrd / strd pre / post variants
1152 // For disassembly only.
1154 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1155 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1156 "ldrd", "\t$dst1, $dst2, [$base, $imm]!", []>;
1158 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1159 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1160 "ldrd", "\t$dst1, $dst2, [$base], $imm", []>;
1162 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1163 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1164 IIC_iStore_d_ru, "strd", "\t$src1, $src2, [$base, $imm]!", []>;
1166 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1167 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1168 IIC_iStore_d_ru, "strd", "\t$src1, $src2, [$base], $imm", []>;
1170 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1171 // data/instruction access. These are for disassembly only.
1173 // A8.6.117, A8.6.118. Different instructions are generated for #0 and #-0.
1174 // The neg_zero operand translates -0 to -1, -1 to -2, ..., etc.
1175 multiclass T2Ipl<bit instr, bit write, string opc> {
1177 def i12 : T2I<(outs), (ins GPR:$base, i32imm:$imm), IIC_iLoad_i, opc,
1178 "\t[$base, $imm]", []> {
1179 let Inst{31-25} = 0b1111100;
1180 let Inst{24} = instr;
1181 let Inst{23} = 1; // U = 1
1183 let Inst{21} = write;
1185 let Inst{15-12} = 0b1111;
1188 def i8 : T2I<(outs), (ins GPR:$base, neg_zero:$imm), IIC_iLoad_i, opc,
1189 "\t[$base, $imm]", []> {
1190 let Inst{31-25} = 0b1111100;
1191 let Inst{24} = instr;
1192 let Inst{23} = 0; // U = 0
1194 let Inst{21} = write;
1196 let Inst{15-12} = 0b1111;
1197 let Inst{11-8} = 0b1100;
1200 let isCodeGenOnly = 1 in // $base doesn't exist in asmstring?
1201 def pci : T2I<(outs), (ins GPR:$base, neg_zero:$imm), IIC_iLoad_i, opc,
1202 "\t[pc, $imm]", []> {
1203 let Inst{31-25} = 0b1111100;
1204 let Inst{24} = instr;
1205 let Inst{23} = ?; // add = (U == 1)
1207 let Inst{21} = write;
1209 let Inst{19-16} = 0b1111; // Rn = 0b1111
1210 let Inst{15-12} = 0b1111;
1213 def r : T2I<(outs), (ins GPR:$base, GPR:$a), IIC_iLoad_i, opc,
1214 "\t[$base, $a]", []> {
1215 let Inst{31-25} = 0b1111100;
1216 let Inst{24} = instr;
1217 let Inst{23} = 0; // add = TRUE for T1
1219 let Inst{21} = write;
1221 let Inst{15-12} = 0b1111;
1222 let Inst{11-6} = 0000000;
1223 let Inst{5-4} = 0b00; // no shift is applied
1226 def s : T2I<(outs), (ins GPR:$base, GPR:$a, i32imm:$shamt), IIC_iLoad_i, opc,
1227 "\t[$base, $a, lsl $shamt]", []> {
1228 let Inst{31-25} = 0b1111100;
1229 let Inst{24} = instr;
1230 let Inst{23} = 0; // add = TRUE for T1
1232 let Inst{21} = write;
1234 let Inst{15-12} = 0b1111;
1235 let Inst{11-6} = 0000000;
1239 defm t2PLD : T2Ipl<0, 0, "pld">;
1240 defm t2PLDW : T2Ipl<0, 1, "pldw">;
1241 defm t2PLI : T2Ipl<1, 0, "pli">;
1243 //===----------------------------------------------------------------------===//
1244 // Load / store multiple Instructions.
1247 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1,
1248 isCodeGenOnly = 1 in {
1249 def t2LDM : T2XI<(outs), (ins addrmode4:$addr, pred:$p,
1250 reglist:$dsts, variable_ops), IIC_iLoad_m,
1251 "ldm${addr:submode}${p}${addr:wide}\t$addr, $dsts", []> {
1252 let Inst{31-27} = 0b11101;
1253 let Inst{26-25} = 0b00;
1254 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1256 let Inst{21} = 0; // The W bit.
1257 let Inst{20} = 1; // Load
1260 def t2LDM_UPD : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
1261 reglist:$dsts, variable_ops),
1263 "ldm${addr:submode}${p}${addr:wide}\t$addr!, $dsts",
1264 "$addr.addr = $wb", []> {
1265 let Inst{31-27} = 0b11101;
1266 let Inst{26-25} = 0b00;
1267 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1269 let Inst{21} = 1; // The W bit.
1270 let Inst{20} = 1; // Load
1272 } // mayLoad, neverHasSideEffects, hasExtraDefRegAllocReq
1274 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1,
1275 isCodeGenOnly = 1 in {
1276 def t2STM : T2XI<(outs), (ins addrmode4:$addr, pred:$p,
1277 reglist:$srcs, variable_ops), IIC_iStore_m,
1278 "stm${addr:submode}${p}${addr:wide}\t$addr, $srcs", []> {
1279 let Inst{31-27} = 0b11101;
1280 let Inst{26-25} = 0b00;
1281 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1283 let Inst{21} = 0; // The W bit.
1284 let Inst{20} = 0; // Store
1287 def t2STM_UPD : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
1288 reglist:$srcs, variable_ops),
1290 "stm${addr:submode}${p}${addr:wide}\t$addr!, $srcs",
1291 "$addr.addr = $wb", []> {
1292 let Inst{31-27} = 0b11101;
1293 let Inst{26-25} = 0b00;
1294 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1296 let Inst{21} = 1; // The W bit.
1297 let Inst{20} = 0; // Store
1299 } // mayStore, neverHasSideEffects, hasExtraSrcRegAllocReq
1301 //===----------------------------------------------------------------------===//
1302 // Move Instructions.
1305 let neverHasSideEffects = 1 in
1306 def t2MOVr : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
1307 "mov", ".w\t$dst, $src", []> {
1308 let Inst{31-27} = 0b11101;
1309 let Inst{26-25} = 0b01;
1310 let Inst{24-21} = 0b0010;
1311 let Inst{20} = ?; // The S bit.
1312 let Inst{19-16} = 0b1111; // Rn
1313 let Inst{14-12} = 0b000;
1314 let Inst{7-4} = 0b0000;
1317 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1318 let isReMaterializable = 1, isAsCheapAsAMove = 1, AddedComplexity = 1 in
1319 def t2MOVi : T2sI<(outs rGPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
1320 "mov", ".w\t$dst, $src",
1321 [(set rGPR:$dst, t2_so_imm:$src)]> {
1322 let Inst{31-27} = 0b11110;
1324 let Inst{24-21} = 0b0010;
1325 let Inst{20} = ?; // The S bit.
1326 let Inst{19-16} = 0b1111; // Rn
1330 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
1331 def t2MOVi16 : T2I<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVi,
1332 "movw", "\t$dst, $src",
1333 [(set rGPR:$dst, imm0_65535:$src)]> {
1334 let Inst{31-27} = 0b11110;
1336 let Inst{24-21} = 0b0010;
1337 let Inst{20} = 0; // The S bit.
1341 let Constraints = "$src = $dst" in
1342 def t2MOVTi16 : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1343 "movt", "\t$dst, $imm",
1345 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1346 let Inst{31-27} = 0b11110;
1348 let Inst{24-21} = 0b0110;
1349 let Inst{20} = 0; // The S bit.
1353 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1355 //===----------------------------------------------------------------------===//
1356 // Extend Instructions.
1361 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1362 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1363 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1364 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1365 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1367 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1368 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1369 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1370 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1371 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1373 // TODO: SXT(A){B|H}16 - done for disassembly only
1377 let AddedComplexity = 16 in {
1378 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1379 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1380 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1381 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1382 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1383 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1385 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1386 // The transformation should probably be done as a combiner action
1387 // instead so we can include a check for masking back in the upper
1388 // eight bits of the source into the lower eight bits of the result.
1389 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1390 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1391 // Requires<[HasT2ExtractPack, IsThumb2]>;
1392 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1393 (t2UXTB16r_rot rGPR:$Src, 8)>,
1394 Requires<[HasT2ExtractPack, IsThumb2]>;
1396 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1397 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1398 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1399 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1400 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1403 //===----------------------------------------------------------------------===//
1404 // Arithmetic Instructions.
1407 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1408 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1409 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1410 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1412 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1413 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1414 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1415 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1416 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1417 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1418 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1420 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1421 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1422 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1423 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1424 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1425 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1426 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1427 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1430 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1431 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1432 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1433 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1435 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1436 // The assume-no-carry-in form uses the negation of the input since add/sub
1437 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1438 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1440 // The AddedComplexity preferences the first variant over the others since
1441 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1442 let AddedComplexity = 1 in
1443 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1444 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1445 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1446 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1447 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1448 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1449 let AddedComplexity = 1 in
1450 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1451 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1452 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1453 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1454 // The with-carry-in form matches bitwise not instead of the negation.
1455 // Effectively, the inverse interpretation of the carry flag already accounts
1456 // for part of the negation.
1457 let AddedComplexity = 1 in
1458 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1459 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1460 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1461 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1463 // Select Bytes -- for disassembly only
1465 def t2SEL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, "sel",
1466 "\t$dst, $a, $b", []> {
1467 let Inst{31-27} = 0b11111;
1468 let Inst{26-24} = 0b010;
1470 let Inst{22-20} = 0b010;
1471 let Inst{15-12} = 0b1111;
1473 let Inst{6-4} = 0b000;
1476 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1477 // And Miscellaneous operations -- for disassembly only
1478 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1479 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1480 : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), NoItinerary, opc,
1481 "\t$dst, $a, $b", pat> {
1482 let Inst{31-27} = 0b11111;
1483 let Inst{26-23} = 0b0101;
1484 let Inst{22-20} = op22_20;
1485 let Inst{15-12} = 0b1111;
1486 let Inst{7-4} = op7_4;
1489 // Saturating add/subtract -- for disassembly only
1491 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1492 [(set rGPR:$dst, (int_arm_qadd rGPR:$a, rGPR:$b))]>;
1493 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1494 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1495 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1496 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1497 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1498 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1499 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1500 [(set rGPR:$dst, (int_arm_qsub rGPR:$a, rGPR:$b))]>;
1501 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1502 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1503 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1504 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1505 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1506 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1507 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1508 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1510 // Signed/Unsigned add/subtract -- for disassembly only
1512 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1513 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1514 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1515 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1516 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1517 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1518 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1519 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1520 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1521 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1522 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1523 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1525 // Signed/Unsigned halving add/subtract -- for disassembly only
1527 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1528 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1529 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1530 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1531 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1532 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1533 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1534 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1535 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1536 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1537 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1538 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1540 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1542 def t2USAD8 : T2I_mac<0, 0b111, 0b0000, (outs rGPR:$dst),
1543 (ins rGPR:$a, rGPR:$b),
1544 NoItinerary, "usad8", "\t$dst, $a, $b", []> {
1545 let Inst{15-12} = 0b1111;
1547 def t2USADA8 : T2I_mac<0, 0b111, 0b0000, (outs rGPR:$dst),
1548 (ins rGPR:$a, rGPR:$b, rGPR:$acc), NoItinerary, "usada8",
1549 "\t$dst, $a, $b, $acc", []>;
1551 // Signed/Unsigned saturate -- for disassembly only
1553 def t2SSAT: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a, shift_imm:$sh),
1554 NoItinerary, "ssat", "\t$dst, $bit_pos, $a$sh",
1555 [/* For disassembly only; pattern left blank */]> {
1556 let Inst{31-27} = 0b11110;
1557 let Inst{25-22} = 0b1100;
1562 def t2SSAT16: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a), NoItinerary,
1563 "ssat16", "\t$dst, $bit_pos, $a",
1564 [/* For disassembly only; pattern left blank */]> {
1565 let Inst{31-27} = 0b11110;
1566 let Inst{25-22} = 0b1100;
1569 let Inst{21} = 1; // sh = '1'
1570 let Inst{14-12} = 0b000; // imm3 = '000'
1571 let Inst{7-6} = 0b00; // imm2 = '00'
1574 def t2USAT: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a, shift_imm:$sh),
1575 NoItinerary, "usat", "\t$dst, $bit_pos, $a$sh",
1576 [/* For disassembly only; pattern left blank */]> {
1577 let Inst{31-27} = 0b11110;
1578 let Inst{25-22} = 0b1110;
1583 def t2USAT16: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a), NoItinerary,
1584 "usat16", "\t$dst, $bit_pos, $a",
1585 [/* For disassembly only; pattern left blank */]> {
1586 let Inst{31-27} = 0b11110;
1587 let Inst{25-22} = 0b1110;
1590 let Inst{21} = 1; // sh = '1'
1591 let Inst{14-12} = 0b000; // imm3 = '000'
1592 let Inst{7-6} = 0b00; // imm2 = '00'
1595 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
1596 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
1598 //===----------------------------------------------------------------------===//
1599 // Shift and rotate Instructions.
1602 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
1603 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
1604 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
1605 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
1607 let Uses = [CPSR] in {
1608 def t2RRX : T2sI<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1609 "rrx", "\t$dst, $src",
1610 [(set rGPR:$dst, (ARMrrx rGPR:$src))]> {
1611 let Inst{31-27} = 0b11101;
1612 let Inst{26-25} = 0b01;
1613 let Inst{24-21} = 0b0010;
1614 let Inst{20} = ?; // The S bit.
1615 let Inst{19-16} = 0b1111; // Rn
1616 let Inst{14-12} = 0b000;
1617 let Inst{7-4} = 0b0011;
1621 let Defs = [CPSR] in {
1622 def t2MOVsrl_flag : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1623 "lsrs", ".w\t$dst, $src, #1",
1624 [(set rGPR:$dst, (ARMsrl_flag rGPR:$src))]> {
1625 let Inst{31-27} = 0b11101;
1626 let Inst{26-25} = 0b01;
1627 let Inst{24-21} = 0b0010;
1628 let Inst{20} = 1; // The S bit.
1629 let Inst{19-16} = 0b1111; // Rn
1630 let Inst{5-4} = 0b01; // Shift type.
1631 // Shift amount = Inst{14-12:7-6} = 1.
1632 let Inst{14-12} = 0b000;
1633 let Inst{7-6} = 0b01;
1635 def t2MOVsra_flag : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1636 "asrs", ".w\t$dst, $src, #1",
1637 [(set rGPR:$dst, (ARMsra_flag rGPR:$src))]> {
1638 let Inst{31-27} = 0b11101;
1639 let Inst{26-25} = 0b01;
1640 let Inst{24-21} = 0b0010;
1641 let Inst{20} = 1; // The S bit.
1642 let Inst{19-16} = 0b1111; // Rn
1643 let Inst{5-4} = 0b10; // Shift type.
1644 // Shift amount = Inst{14-12:7-6} = 1.
1645 let Inst{14-12} = 0b000;
1646 let Inst{7-6} = 0b01;
1650 //===----------------------------------------------------------------------===//
1651 // Bitwise Instructions.
1654 defm t2AND : T2I_bin_w_irs<0b0000, "and",
1655 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1656 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
1657 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
1658 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1659 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
1660 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
1661 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1662 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
1664 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
1665 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1666 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
1668 let Constraints = "$src = $dst" in
1669 def t2BFC : T2I<(outs rGPR:$dst), (ins rGPR:$src, bf_inv_mask_imm:$imm),
1670 IIC_iUNAsi, "bfc", "\t$dst, $imm",
1671 [(set rGPR:$dst, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
1672 let Inst{31-27} = 0b11110;
1674 let Inst{24-20} = 0b10110;
1675 let Inst{19-16} = 0b1111; // Rn
1679 def t2SBFX: T2I<(outs rGPR:$dst), (ins rGPR:$src, imm0_31:$lsb, imm0_31:$width),
1680 IIC_iUNAsi, "sbfx", "\t$dst, $src, $lsb, $width", []> {
1681 let Inst{31-27} = 0b11110;
1683 let Inst{24-20} = 0b10100;
1687 def t2UBFX: T2I<(outs rGPR:$dst), (ins rGPR:$src, imm0_31:$lsb, imm0_31:$width),
1688 IIC_iUNAsi, "ubfx", "\t$dst, $src, $lsb, $width", []> {
1689 let Inst{31-27} = 0b11110;
1691 let Inst{24-20} = 0b11100;
1695 // A8.6.18 BFI - Bitfield insert (Encoding T1)
1696 let Constraints = "$src = $dst" in
1697 def t2BFI : T2I<(outs rGPR:$dst),
1698 (ins rGPR:$src, rGPR:$val, bf_inv_mask_imm:$imm),
1699 IIC_iBITi, "bfi", "\t$dst, $val, $imm",
1700 [(set rGPR:$dst, (ARMbfi rGPR:$src, rGPR:$val,
1701 bf_inv_mask_imm:$imm))]> {
1702 let Inst{31-27} = 0b11110;
1704 let Inst{24-20} = 0b10110;
1708 defm t2ORN : T2I_bin_irs<0b0011, "orn",
1709 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1710 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
1712 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
1713 let AddedComplexity = 1 in
1714 defm t2MVN : T2I_un_irs <0b0011, "mvn",
1715 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
1716 UnOpFrag<(not node:$Src)>, 1, 1>;
1719 let AddedComplexity = 1 in
1720 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
1721 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
1723 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
1724 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
1725 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
1726 Requires<[IsThumb2]>;
1728 def : T2Pat<(t2_so_imm_not:$src),
1729 (t2MVNi t2_so_imm_not:$src)>;
1731 //===----------------------------------------------------------------------===//
1732 // Multiply Instructions.
1734 let isCommutable = 1 in
1735 def t2MUL: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1736 "mul", "\t$dst, $a, $b",
1737 [(set rGPR:$dst, (mul rGPR:$a, rGPR:$b))]> {
1738 let Inst{31-27} = 0b11111;
1739 let Inst{26-23} = 0b0110;
1740 let Inst{22-20} = 0b000;
1741 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1742 let Inst{7-4} = 0b0000; // Multiply
1745 def t2MLA: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1746 "mla", "\t$dst, $a, $b, $c",
1747 [(set rGPR:$dst, (add (mul rGPR:$a, rGPR:$b), rGPR:$c))]> {
1748 let Inst{31-27} = 0b11111;
1749 let Inst{26-23} = 0b0110;
1750 let Inst{22-20} = 0b000;
1751 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1752 let Inst{7-4} = 0b0000; // Multiply
1755 def t2MLS: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1756 "mls", "\t$dst, $a, $b, $c",
1757 [(set rGPR:$dst, (sub rGPR:$c, (mul rGPR:$a, rGPR:$b)))]> {
1758 let Inst{31-27} = 0b11111;
1759 let Inst{26-23} = 0b0110;
1760 let Inst{22-20} = 0b000;
1761 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1762 let Inst{7-4} = 0b0001; // Multiply and Subtract
1765 // Extra precision multiplies with low / high results
1766 let neverHasSideEffects = 1 in {
1767 let isCommutable = 1 in {
1768 def t2SMULL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1769 (ins rGPR:$a, rGPR:$b), IIC_iMUL64,
1770 "smull", "\t$ldst, $hdst, $a, $b", []> {
1771 let Inst{31-27} = 0b11111;
1772 let Inst{26-23} = 0b0111;
1773 let Inst{22-20} = 0b000;
1774 let Inst{7-4} = 0b0000;
1777 def t2UMULL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1778 (ins rGPR:$a, rGPR:$b), IIC_iMUL64,
1779 "umull", "\t$ldst, $hdst, $a, $b", []> {
1780 let Inst{31-27} = 0b11111;
1781 let Inst{26-23} = 0b0111;
1782 let Inst{22-20} = 0b010;
1783 let Inst{7-4} = 0b0000;
1787 // Multiply + accumulate
1788 def t2SMLAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1789 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1790 "smlal", "\t$ldst, $hdst, $a, $b", []>{
1791 let Inst{31-27} = 0b11111;
1792 let Inst{26-23} = 0b0111;
1793 let Inst{22-20} = 0b100;
1794 let Inst{7-4} = 0b0000;
1797 def t2UMLAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1798 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1799 "umlal", "\t$ldst, $hdst, $a, $b", []>{
1800 let Inst{31-27} = 0b11111;
1801 let Inst{26-23} = 0b0111;
1802 let Inst{22-20} = 0b110;
1803 let Inst{7-4} = 0b0000;
1806 def t2UMAAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1807 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1808 "umaal", "\t$ldst, $hdst, $a, $b", []>{
1809 let Inst{31-27} = 0b11111;
1810 let Inst{26-23} = 0b0111;
1811 let Inst{22-20} = 0b110;
1812 let Inst{7-4} = 0b0110;
1814 } // neverHasSideEffects
1816 // Rounding variants of the below included for disassembly only
1818 // Most significant word multiply
1819 def t2SMMUL : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1820 "smmul", "\t$dst, $a, $b",
1821 [(set rGPR:$dst, (mulhs rGPR:$a, rGPR:$b))]> {
1822 let Inst{31-27} = 0b11111;
1823 let Inst{26-23} = 0b0110;
1824 let Inst{22-20} = 0b101;
1825 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1826 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1829 def t2SMMULR : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1830 "smmulr", "\t$dst, $a, $b", []> {
1831 let Inst{31-27} = 0b11111;
1832 let Inst{26-23} = 0b0110;
1833 let Inst{22-20} = 0b101;
1834 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1835 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1838 def t2SMMLA : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1839 "smmla", "\t$dst, $a, $b, $c",
1840 [(set rGPR:$dst, (add (mulhs rGPR:$a, rGPR:$b), rGPR:$c))]> {
1841 let Inst{31-27} = 0b11111;
1842 let Inst{26-23} = 0b0110;
1843 let Inst{22-20} = 0b101;
1844 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1845 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1848 def t2SMMLAR: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1849 "smmlar", "\t$dst, $a, $b, $c", []> {
1850 let Inst{31-27} = 0b11111;
1851 let Inst{26-23} = 0b0110;
1852 let Inst{22-20} = 0b101;
1853 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1854 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1857 def t2SMMLS: T2I <(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1858 "smmls", "\t$dst, $a, $b, $c",
1859 [(set rGPR:$dst, (sub rGPR:$c, (mulhs rGPR:$a, rGPR:$b)))]> {
1860 let Inst{31-27} = 0b11111;
1861 let Inst{26-23} = 0b0110;
1862 let Inst{22-20} = 0b110;
1863 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1864 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1867 def t2SMMLSR:T2I <(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1868 "smmlsr", "\t$dst, $a, $b, $c", []> {
1869 let Inst{31-27} = 0b11111;
1870 let Inst{26-23} = 0b0110;
1871 let Inst{22-20} = 0b110;
1872 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1873 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1876 multiclass T2I_smul<string opc, PatFrag opnode> {
1877 def BB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1878 !strconcat(opc, "bb"), "\t$dst, $a, $b",
1879 [(set rGPR:$dst, (opnode (sext_inreg rGPR:$a, i16),
1880 (sext_inreg rGPR:$b, i16)))]> {
1881 let Inst{31-27} = 0b11111;
1882 let Inst{26-23} = 0b0110;
1883 let Inst{22-20} = 0b001;
1884 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1885 let Inst{7-6} = 0b00;
1886 let Inst{5-4} = 0b00;
1889 def BT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1890 !strconcat(opc, "bt"), "\t$dst, $a, $b",
1891 [(set rGPR:$dst, (opnode (sext_inreg rGPR:$a, i16),
1892 (sra rGPR:$b, (i32 16))))]> {
1893 let Inst{31-27} = 0b11111;
1894 let Inst{26-23} = 0b0110;
1895 let Inst{22-20} = 0b001;
1896 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1897 let Inst{7-6} = 0b00;
1898 let Inst{5-4} = 0b01;
1901 def TB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1902 !strconcat(opc, "tb"), "\t$dst, $a, $b",
1903 [(set rGPR:$dst, (opnode (sra rGPR:$a, (i32 16)),
1904 (sext_inreg rGPR:$b, i16)))]> {
1905 let Inst{31-27} = 0b11111;
1906 let Inst{26-23} = 0b0110;
1907 let Inst{22-20} = 0b001;
1908 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1909 let Inst{7-6} = 0b00;
1910 let Inst{5-4} = 0b10;
1913 def TT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1914 !strconcat(opc, "tt"), "\t$dst, $a, $b",
1915 [(set rGPR:$dst, (opnode (sra rGPR:$a, (i32 16)),
1916 (sra rGPR:$b, (i32 16))))]> {
1917 let Inst{31-27} = 0b11111;
1918 let Inst{26-23} = 0b0110;
1919 let Inst{22-20} = 0b001;
1920 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1921 let Inst{7-6} = 0b00;
1922 let Inst{5-4} = 0b11;
1925 def WB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1926 !strconcat(opc, "wb"), "\t$dst, $a, $b",
1927 [(set rGPR:$dst, (sra (opnode rGPR:$a,
1928 (sext_inreg rGPR:$b, i16)), (i32 16)))]> {
1929 let Inst{31-27} = 0b11111;
1930 let Inst{26-23} = 0b0110;
1931 let Inst{22-20} = 0b011;
1932 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1933 let Inst{7-6} = 0b00;
1934 let Inst{5-4} = 0b00;
1937 def WT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1938 !strconcat(opc, "wt"), "\t$dst, $a, $b",
1939 [(set rGPR:$dst, (sra (opnode rGPR:$a,
1940 (sra rGPR:$b, (i32 16))), (i32 16)))]> {
1941 let Inst{31-27} = 0b11111;
1942 let Inst{26-23} = 0b0110;
1943 let Inst{22-20} = 0b011;
1944 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1945 let Inst{7-6} = 0b00;
1946 let Inst{5-4} = 0b01;
1951 multiclass T2I_smla<string opc, PatFrag opnode> {
1952 def BB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1953 !strconcat(opc, "bb"), "\t$dst, $a, $b, $acc",
1954 [(set rGPR:$dst, (add rGPR:$acc,
1955 (opnode (sext_inreg rGPR:$a, i16),
1956 (sext_inreg rGPR:$b, i16))))]> {
1957 let Inst{31-27} = 0b11111;
1958 let Inst{26-23} = 0b0110;
1959 let Inst{22-20} = 0b001;
1960 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1961 let Inst{7-6} = 0b00;
1962 let Inst{5-4} = 0b00;
1965 def BT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1966 !strconcat(opc, "bt"), "\t$dst, $a, $b, $acc",
1967 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sext_inreg rGPR:$a, i16),
1968 (sra rGPR:$b, (i32 16)))))]> {
1969 let Inst{31-27} = 0b11111;
1970 let Inst{26-23} = 0b0110;
1971 let Inst{22-20} = 0b001;
1972 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1973 let Inst{7-6} = 0b00;
1974 let Inst{5-4} = 0b01;
1977 def TB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1978 !strconcat(opc, "tb"), "\t$dst, $a, $b, $acc",
1979 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sra rGPR:$a, (i32 16)),
1980 (sext_inreg rGPR:$b, i16))))]> {
1981 let Inst{31-27} = 0b11111;
1982 let Inst{26-23} = 0b0110;
1983 let Inst{22-20} = 0b001;
1984 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1985 let Inst{7-6} = 0b00;
1986 let Inst{5-4} = 0b10;
1989 def TT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1990 !strconcat(opc, "tt"), "\t$dst, $a, $b, $acc",
1991 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sra rGPR:$a, (i32 16)),
1992 (sra rGPR:$b, (i32 16)))))]> {
1993 let Inst{31-27} = 0b11111;
1994 let Inst{26-23} = 0b0110;
1995 let Inst{22-20} = 0b001;
1996 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1997 let Inst{7-6} = 0b00;
1998 let Inst{5-4} = 0b11;
2001 def WB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
2002 !strconcat(opc, "wb"), "\t$dst, $a, $b, $acc",
2003 [(set rGPR:$dst, (add rGPR:$acc, (sra (opnode rGPR:$a,
2004 (sext_inreg rGPR:$b, i16)), (i32 16))))]> {
2005 let Inst{31-27} = 0b11111;
2006 let Inst{26-23} = 0b0110;
2007 let Inst{22-20} = 0b011;
2008 let Inst{15-12} = {?, ?, ?, ?}; // Ra
2009 let Inst{7-6} = 0b00;
2010 let Inst{5-4} = 0b00;
2013 def WT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
2014 !strconcat(opc, "wt"), "\t$dst, $a, $b, $acc",
2015 [(set rGPR:$dst, (add rGPR:$acc, (sra (opnode rGPR:$a,
2016 (sra rGPR:$b, (i32 16))), (i32 16))))]> {
2017 let Inst{31-27} = 0b11111;
2018 let Inst{26-23} = 0b0110;
2019 let Inst{22-20} = 0b011;
2020 let Inst{15-12} = {?, ?, ?, ?}; // Ra
2021 let Inst{7-6} = 0b00;
2022 let Inst{5-4} = 0b01;
2026 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2027 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2029 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2030 def t2SMLALBB : T2I_mac<1, 0b100, 0b1000, (outs rGPR:$ldst,rGPR:$hdst),
2031 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlalbb", "\t$ldst, $hdst, $a, $b",
2032 [/* For disassembly only; pattern left blank */]>;
2033 def t2SMLALBT : T2I_mac<1, 0b100, 0b1001, (outs rGPR:$ldst,rGPR:$hdst),
2034 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlalbt", "\t$ldst, $hdst, $a, $b",
2035 [/* For disassembly only; pattern left blank */]>;
2036 def t2SMLALTB : T2I_mac<1, 0b100, 0b1010, (outs rGPR:$ldst,rGPR:$hdst),
2037 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaltb", "\t$ldst, $hdst, $a, $b",
2038 [/* For disassembly only; pattern left blank */]>;
2039 def t2SMLALTT : T2I_mac<1, 0b100, 0b1011, (outs rGPR:$ldst,rGPR:$hdst),
2040 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaltt", "\t$ldst, $hdst, $a, $b",
2041 [/* For disassembly only; pattern left blank */]>;
2043 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2044 // These are for disassembly only.
2046 def t2SMUAD: T2I_mac<0, 0b010, 0b0000, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2047 IIC_iMAC32, "smuad", "\t$dst, $a, $b", []> {
2048 let Inst{15-12} = 0b1111;
2050 def t2SMUADX:T2I_mac<0, 0b010, 0b0001, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2051 IIC_iMAC32, "smuadx", "\t$dst, $a, $b", []> {
2052 let Inst{15-12} = 0b1111;
2054 def t2SMUSD: T2I_mac<0, 0b100, 0b0000, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2055 IIC_iMAC32, "smusd", "\t$dst, $a, $b", []> {
2056 let Inst{15-12} = 0b1111;
2058 def t2SMUSDX:T2I_mac<0, 0b100, 0b0001, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2059 IIC_iMAC32, "smusdx", "\t$dst, $a, $b", []> {
2060 let Inst{15-12} = 0b1111;
2062 def t2SMLAD : T2I_mac<0, 0b010, 0b0000, (outs rGPR:$dst),
2063 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlad",
2064 "\t$dst, $a, $b, $acc", []>;
2065 def t2SMLADX : T2I_mac<0, 0b010, 0b0001, (outs rGPR:$dst),
2066 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smladx",
2067 "\t$dst, $a, $b, $acc", []>;
2068 def t2SMLSD : T2I_mac<0, 0b100, 0b0000, (outs rGPR:$dst),
2069 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlsd",
2070 "\t$dst, $a, $b, $acc", []>;
2071 def t2SMLSDX : T2I_mac<0, 0b100, 0b0001, (outs rGPR:$dst),
2072 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlsdx",
2073 "\t$dst, $a, $b, $acc", []>;
2074 def t2SMLALD : T2I_mac<1, 0b100, 0b1100, (outs rGPR:$ldst,rGPR:$hdst),
2075 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlald",
2076 "\t$ldst, $hdst, $a, $b", []>;
2077 def t2SMLALDX : T2I_mac<1, 0b100, 0b1101, (outs rGPR:$ldst,rGPR:$hdst),
2078 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaldx",
2079 "\t$ldst, $hdst, $a, $b", []>;
2080 def t2SMLSLD : T2I_mac<1, 0b101, 0b1100, (outs rGPR:$ldst,rGPR:$hdst),
2081 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlsld",
2082 "\t$ldst, $hdst, $a, $b", []>;
2083 def t2SMLSLDX : T2I_mac<1, 0b101, 0b1101, (outs rGPR:$ldst,rGPR:$hdst),
2084 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlsldx",
2085 "\t$ldst, $hdst, $a, $b", []>;
2087 //===----------------------------------------------------------------------===//
2088 // Misc. Arithmetic Instructions.
2091 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2092 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2093 : T2I<oops, iops, itin, opc, asm, pattern> {
2094 let Inst{31-27} = 0b11111;
2095 let Inst{26-22} = 0b01010;
2096 let Inst{21-20} = op1;
2097 let Inst{15-12} = 0b1111;
2098 let Inst{7-6} = 0b10;
2099 let Inst{5-4} = op2;
2102 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2103 "clz", "\t$dst, $src", [(set rGPR:$dst, (ctlz rGPR:$src))]>;
2105 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2106 "rbit", "\t$dst, $src",
2107 [(set rGPR:$dst, (ARMrbit rGPR:$src))]>;
2109 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2110 "rev", ".w\t$dst, $src", [(set rGPR:$dst, (bswap rGPR:$src))]>;
2112 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2113 "rev16", ".w\t$dst, $src",
2115 (or (and (srl rGPR:$src, (i32 8)), 0xFF),
2116 (or (and (shl rGPR:$src, (i32 8)), 0xFF00),
2117 (or (and (srl rGPR:$src, (i32 8)), 0xFF0000),
2118 (and (shl rGPR:$src, (i32 8)), 0xFF000000)))))]>;
2120 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2121 "revsh", ".w\t$dst, $src",
2124 (or (srl (and rGPR:$src, 0xFF00), (i32 8)),
2125 (shl rGPR:$src, (i32 8))), i16))]>;
2127 def t2PKHBT : T2I<(outs rGPR:$dst), (ins rGPR:$src1, rGPR:$src2, shift_imm:$sh),
2128 IIC_iBITsi, "pkhbt", "\t$dst, $src1, $src2$sh",
2129 [(set rGPR:$dst, (or (and rGPR:$src1, 0xFFFF),
2130 (and (shl rGPR:$src2, lsl_amt:$sh),
2132 Requires<[HasT2ExtractPack, IsThumb2]> {
2133 let Inst{31-27} = 0b11101;
2134 let Inst{26-25} = 0b01;
2135 let Inst{24-20} = 0b01100;
2136 let Inst{5} = 0; // BT form
2140 // Alternate cases for PKHBT where identities eliminate some nodes.
2141 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2142 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2143 Requires<[HasT2ExtractPack, IsThumb2]>;
2144 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2145 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2146 Requires<[HasT2ExtractPack, IsThumb2]>;
2148 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2149 // will match the pattern below.
2150 def t2PKHTB : T2I<(outs rGPR:$dst), (ins rGPR:$src1, rGPR:$src2, shift_imm:$sh),
2151 IIC_iBITsi, "pkhtb", "\t$dst, $src1, $src2$sh",
2152 [(set rGPR:$dst, (or (and rGPR:$src1, 0xFFFF0000),
2153 (and (sra rGPR:$src2, asr_amt:$sh),
2155 Requires<[HasT2ExtractPack, IsThumb2]> {
2156 let Inst{31-27} = 0b11101;
2157 let Inst{26-25} = 0b01;
2158 let Inst{24-20} = 0b01100;
2159 let Inst{5} = 1; // TB form
2163 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2164 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2165 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2166 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2167 Requires<[HasT2ExtractPack, IsThumb2]>;
2168 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2169 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2170 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2171 Requires<[HasT2ExtractPack, IsThumb2]>;
2173 //===----------------------------------------------------------------------===//
2174 // Comparison Instructions...
2176 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2177 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2178 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2179 defm t2CMPz : T2I_cmp_irs<0b1101, "cmp",
2180 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2181 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
2183 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2184 // Compare-to-zero still works out, just not the relationals
2185 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2186 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2187 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2188 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2189 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2191 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2192 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2194 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2195 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2197 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2198 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2199 BinOpFrag<(ARMcmpZ (and node:$LHS, node:$RHS), 0)>>;
2200 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2201 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2202 BinOpFrag<(ARMcmpZ (xor node:$LHS, node:$RHS), 0)>>;
2204 // Conditional moves
2205 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2206 // a two-value operand where a dag node expects two operands. :(
2207 let neverHasSideEffects = 1 in {
2208 def t2MOVCCr : T2I<(outs rGPR:$dst), (ins rGPR:$false, rGPR:$true), IIC_iCMOVr,
2209 "mov", ".w\t$dst, $true",
2210 [/*(set rGPR:$dst, (ARMcmov rGPR:$false, rGPR:$true, imm:$cc, CCR:$ccr))*/]>,
2211 RegConstraint<"$false = $dst"> {
2212 let Inst{31-27} = 0b11101;
2213 let Inst{26-25} = 0b01;
2214 let Inst{24-21} = 0b0010;
2215 let Inst{20} = 0; // The S bit.
2216 let Inst{19-16} = 0b1111; // Rn
2217 let Inst{14-12} = 0b000;
2218 let Inst{7-4} = 0b0000;
2221 def t2MOVCCi : T2I<(outs rGPR:$dst), (ins rGPR:$false, t2_so_imm:$true),
2222 IIC_iCMOVi, "mov", ".w\t$dst, $true",
2223 [/*(set rGPR:$dst,(ARMcmov rGPR:$false,t2_so_imm:$true, imm:$cc, CCR:$ccr))*/]>,
2224 RegConstraint<"$false = $dst"> {
2225 let Inst{31-27} = 0b11110;
2227 let Inst{24-21} = 0b0010;
2228 let Inst{20} = 0; // The S bit.
2229 let Inst{19-16} = 0b1111; // Rn
2233 def t2MOVCCi16 : T2I<(outs rGPR:$dst), (ins rGPR:$false, i32imm:$src),
2235 "movw", "\t$dst, $src", []>,
2236 RegConstraint<"$false = $dst"> {
2237 let Inst{31-27} = 0b11110;
2239 let Inst{24-21} = 0b0010;
2240 let Inst{20} = 0; // The S bit.
2244 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2245 string opc, string asm, list<dag> pattern>
2246 : T2I<oops, iops, itin, opc, asm, pattern> {
2247 let Inst{31-27} = 0b11101;
2248 let Inst{26-25} = 0b01;
2249 let Inst{24-21} = 0b0010;
2250 let Inst{20} = 0; // The S bit.
2251 let Inst{19-16} = 0b1111; // Rn
2252 let Inst{5-4} = opcod; // Shift type.
2254 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$dst),
2255 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2256 IIC_iCMOVsi, "lsl", ".w\t$dst, $true, $rhs", []>,
2257 RegConstraint<"$false = $dst">;
2258 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$dst),
2259 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2260 IIC_iCMOVsi, "lsr", ".w\t$dst, $true, $rhs", []>,
2261 RegConstraint<"$false = $dst">;
2262 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$dst),
2263 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2264 IIC_iCMOVsi, "asr", ".w\t$dst, $true, $rhs", []>,
2265 RegConstraint<"$false = $dst">;
2266 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$dst),
2267 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2268 IIC_iCMOVsi, "ror", ".w\t$dst, $true, $rhs", []>,
2269 RegConstraint<"$false = $dst">;
2270 } // neverHasSideEffects
2272 //===----------------------------------------------------------------------===//
2273 // Atomic operations intrinsics
2276 // memory barriers protect the atomic sequences
2277 let hasSideEffects = 1 in {
2278 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2279 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2280 Requires<[IsThumb, HasDB]> {
2282 let Inst{31-4} = 0xf3bf8f5;
2283 let Inst{3-0} = opt;
2287 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2289 [/* For disassembly only; pattern left blank */]>,
2290 Requires<[IsThumb, HasDB]> {
2292 let Inst{31-4} = 0xf3bf8f4;
2293 let Inst{3-0} = opt;
2296 // ISB has only full system option -- for disassembly only
2297 def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
2298 [/* For disassembly only; pattern left blank */]>,
2299 Requires<[IsThumb2, HasV7]> {
2300 let Inst{31-4} = 0xf3bf8f6;
2301 let Inst{3-0} = 0b1111;
2304 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2305 InstrItinClass itin, string opc, string asm, string cstr,
2306 list<dag> pattern, bits<4> rt2 = 0b1111>
2307 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2308 let Inst{31-27} = 0b11101;
2309 let Inst{26-20} = 0b0001101;
2310 let Inst{11-8} = rt2;
2311 let Inst{7-6} = 0b01;
2312 let Inst{5-4} = opcod;
2313 let Inst{3-0} = 0b1111;
2315 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2316 InstrItinClass itin, string opc, string asm, string cstr,
2317 list<dag> pattern, bits<4> rt2 = 0b1111>
2318 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2319 let Inst{31-27} = 0b11101;
2320 let Inst{26-20} = 0b0001100;
2321 let Inst{11-8} = rt2;
2322 let Inst{7-6} = 0b01;
2323 let Inst{5-4} = opcod;
2326 let mayLoad = 1 in {
2327 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2328 Size4Bytes, NoItinerary, "ldrexb", "\t$dest, [$ptr]",
2330 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2331 Size4Bytes, NoItinerary, "ldrexh", "\t$dest, [$ptr]",
2333 def t2LDREX : Thumb2I<(outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2334 Size4Bytes, NoItinerary,
2335 "ldrex", "\t$dest, [$ptr]", "",
2337 let Inst{31-27} = 0b11101;
2338 let Inst{26-20} = 0b0000101;
2339 let Inst{11-8} = 0b1111;
2340 let Inst{7-0} = 0b00000000; // imm8 = 0
2342 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$dest, rGPR:$dest2), (ins rGPR:$ptr),
2343 AddrModeNone, Size4Bytes, NoItinerary,
2344 "ldrexd", "\t$dest, $dest2, [$ptr]", "",
2348 let mayStore = 1, Constraints = "@earlyclobber $success" in {
2349 def t2STREXB : T2I_strex<0b00, (outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2350 AddrModeNone, Size4Bytes, NoItinerary,
2351 "strexb", "\t$success, $src, [$ptr]", "", []>;
2352 def t2STREXH : T2I_strex<0b01, (outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2353 AddrModeNone, Size4Bytes, NoItinerary,
2354 "strexh", "\t$success, $src, [$ptr]", "", []>;
2355 def t2STREX : Thumb2I<(outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2356 AddrModeNone, Size4Bytes, NoItinerary,
2357 "strex", "\t$success, $src, [$ptr]", "",
2359 let Inst{31-27} = 0b11101;
2360 let Inst{26-20} = 0b0000100;
2361 let Inst{7-0} = 0b00000000; // imm8 = 0
2363 def t2STREXD : T2I_strex<0b11, (outs rGPR:$success),
2364 (ins rGPR:$src, rGPR:$src2, rGPR:$ptr),
2365 AddrModeNone, Size4Bytes, NoItinerary,
2366 "strexd", "\t$success, $src, $src2, [$ptr]", "", [],
2370 // Clear-Exclusive is for disassembly only.
2371 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2372 [/* For disassembly only; pattern left blank */]>,
2373 Requires<[IsARM, HasV7]> {
2374 let Inst{31-20} = 0xf3b;
2375 let Inst{15-14} = 0b10;
2377 let Inst{7-4} = 0b0010;
2380 //===----------------------------------------------------------------------===//
2384 // __aeabi_read_tp preserves the registers r1-r3.
2386 Defs = [R0, R12, LR, CPSR] in {
2387 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2388 "bl\t__aeabi_read_tp",
2389 [(set R0, ARMthread_pointer)]> {
2390 let Inst{31-27} = 0b11110;
2391 let Inst{15-14} = 0b11;
2396 //===----------------------------------------------------------------------===//
2397 // SJLJ Exception handling intrinsics
2398 // eh_sjlj_setjmp() is an instruction sequence to store the return
2399 // address and save #0 in R0 for the non-longjmp case.
2400 // Since by its nature we may be coming from some other function to get
2401 // here, and we're using the stack frame for the containing function to
2402 // save/restore registers, we can't keep anything live in regs across
2403 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2404 // when we get here from a longjmp(). We force everthing out of registers
2405 // except for our own input by listing the relevant registers in Defs. By
2406 // doing so, we also cause the prologue/epilogue code to actively preserve
2407 // all of the callee-saved resgisters, which is exactly what we want.
2408 // $val is a scratch register for our use.
2410 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2411 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2412 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2413 D31 ], hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2414 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2415 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2416 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2417 Requires<[IsThumb2, HasVFP2]>;
2421 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2422 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2423 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2424 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2425 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2426 Requires<[IsThumb2, NoVFP]>;
2430 //===----------------------------------------------------------------------===//
2431 // Control-Flow Instructions
2434 // FIXME: remove when we have a way to marking a MI with these properties.
2435 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2437 // FIXME: Should pc be an implicit operand like PICADD, etc?
2438 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2439 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2440 def t2LDM_RET : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
2441 reglist:$dsts, variable_ops),
2443 "ldm${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,
2464 isCodeGenOnly = 1 in { // $id doesn't exist in asmstring, should be lowered.
2467 (ins GPR:$target, GPR:$index, jt2block_operand:$jt, i32imm:$id),
2468 IIC_Br, "mov\tpc, $target$jt",
2469 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]> {
2470 let Inst{31-27} = 0b11101;
2471 let Inst{26-20} = 0b0100100;
2472 let Inst{19-16} = 0b1111;
2473 let Inst{14-12} = 0b000;
2474 let Inst{11-8} = 0b1111; // Rd = pc
2475 let Inst{7-4} = 0b0000;
2478 // FIXME: Add a non-pc based case that can be predicated.
2479 let isCodeGenOnly = 1 in // $id doesn't exist in asm string, should be lowered.
2482 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2483 IIC_Br, "tbb\t$index$jt", []> {
2484 let Inst{31-27} = 0b11101;
2485 let Inst{26-20} = 0b0001101;
2486 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2487 let Inst{15-8} = 0b11110000;
2488 let Inst{7-4} = 0b0000; // B form
2491 let isCodeGenOnly = 1 in // $id doesn't exist in asm string, should be lowered.
2494 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2495 IIC_Br, "tbh\t$index$jt", []> {
2496 let Inst{31-27} = 0b11101;
2497 let Inst{26-20} = 0b0001101;
2498 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2499 let Inst{15-8} = 0b11110000;
2500 let Inst{7-4} = 0b0001; // H form
2503 // Generic versions of the above two instructions, for disassembly only
2505 def t2TBBgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2506 "tbb", "\t[$a, $b]", []>{
2507 let Inst{31-27} = 0b11101;
2508 let Inst{26-20} = 0b0001101;
2509 let Inst{15-8} = 0b11110000;
2510 let Inst{7-4} = 0b0000; // B form
2513 def t2TBHgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2514 "tbh", "\t[$a, $b, lsl #1]", []> {
2515 let Inst{31-27} = 0b11101;
2516 let Inst{26-20} = 0b0001101;
2517 let Inst{15-8} = 0b11110000;
2518 let Inst{7-4} = 0b0001; // H form
2520 } // isNotDuplicable, isIndirectBranch
2522 } // isBranch, isTerminator, isBarrier
2524 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
2525 // a two-value operand where a dag node expects two operands. :(
2526 let isBranch = 1, isTerminator = 1 in
2527 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
2529 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
2530 let Inst{31-27} = 0b11110;
2531 let Inst{15-14} = 0b10;
2537 let Defs = [ITSTATE] in
2538 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
2539 AddrModeNone, Size2Bytes, IIC_iALUx,
2540 "it$mask\t$cc", "", []> {
2541 // 16-bit instruction.
2542 let Inst{31-16} = 0x0000;
2543 let Inst{15-8} = 0b10111111;
2546 // Branch and Exchange Jazelle -- for disassembly only
2548 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
2549 [/* For disassembly only; pattern left blank */]> {
2550 let Inst{31-27} = 0b11110;
2552 let Inst{25-20} = 0b111100;
2553 let Inst{15-14} = 0b10;
2557 // Change Processor State is a system instruction -- for disassembly only.
2558 // The singleton $opt operand contains the following information:
2559 // opt{4-0} = mode from Inst{4-0}
2560 // opt{5} = changemode from Inst{17}
2561 // opt{8-6} = AIF from Inst{8-6}
2562 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
2563 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
2564 [/* For disassembly only; pattern left blank */]> {
2565 let Inst{31-27} = 0b11110;
2567 let Inst{25-20} = 0b111010;
2568 let Inst{15-14} = 0b10;
2572 // A6.3.4 Branches and miscellaneous control
2573 // Table A6-14 Change Processor State, and hint instructions
2574 // Helper class for disassembly only.
2575 class T2I_hint<bits<8> op7_0, string opc, string asm>
2576 : T2I<(outs), (ins), NoItinerary, opc, asm,
2577 [/* For disassembly only; pattern left blank */]> {
2578 let Inst{31-20} = 0xf3a;
2579 let Inst{15-14} = 0b10;
2581 let Inst{10-8} = 0b000;
2582 let Inst{7-0} = op7_0;
2585 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
2586 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
2587 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
2588 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
2589 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
2591 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
2592 [/* For disassembly only; pattern left blank */]> {
2593 let Inst{31-20} = 0xf3a;
2594 let Inst{15-14} = 0b10;
2596 let Inst{10-8} = 0b000;
2597 let Inst{7-4} = 0b1111;
2600 // Secure Monitor Call is a system instruction -- for disassembly only
2601 // Option = Inst{19-16}
2602 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
2603 [/* For disassembly only; pattern left blank */]> {
2604 let Inst{31-27} = 0b11110;
2605 let Inst{26-20} = 0b1111111;
2606 let Inst{15-12} = 0b1000;
2609 // Store Return State is a system instruction -- for disassembly only
2610 def t2SRSDBW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
2611 [/* For disassembly only; pattern left blank */]> {
2612 let Inst{31-27} = 0b11101;
2613 let Inst{26-20} = 0b0000010; // W = 1
2616 def t2SRSDB : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
2617 [/* For disassembly only; pattern left blank */]> {
2618 let Inst{31-27} = 0b11101;
2619 let Inst{26-20} = 0b0000000; // W = 0
2622 def t2SRSIAW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
2623 [/* For disassembly only; pattern left blank */]> {
2624 let Inst{31-27} = 0b11101;
2625 let Inst{26-20} = 0b0011010; // W = 1
2628 def t2SRSIA : T2I<(outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
2629 [/* For disassembly only; pattern left blank */]> {
2630 let Inst{31-27} = 0b11101;
2631 let Inst{26-20} = 0b0011000; // W = 0
2634 // Return From Exception is a system instruction -- for disassembly only
2635 def t2RFEDBW : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfedb", "\t$base!",
2636 [/* For disassembly only; pattern left blank */]> {
2637 let Inst{31-27} = 0b11101;
2638 let Inst{26-20} = 0b0000011; // W = 1
2641 def t2RFEDB : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeab", "\t$base",
2642 [/* For disassembly only; pattern left blank */]> {
2643 let Inst{31-27} = 0b11101;
2644 let Inst{26-20} = 0b0000001; // W = 0
2647 def t2RFEIAW : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeia", "\t$base!",
2648 [/* For disassembly only; pattern left blank */]> {
2649 let Inst{31-27} = 0b11101;
2650 let Inst{26-20} = 0b0011011; // W = 1
2653 def t2RFEIA : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeia", "\t$base",
2654 [/* For disassembly only; pattern left blank */]> {
2655 let Inst{31-27} = 0b11101;
2656 let Inst{26-20} = 0b0011001; // W = 0
2659 //===----------------------------------------------------------------------===//
2660 // Non-Instruction Patterns
2663 // Two piece so_imms.
2664 def : T2Pat<(or rGPR:$LHS, t2_so_imm2part:$RHS),
2665 (t2ORRri (t2ORRri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2666 (t2_so_imm2part_2 imm:$RHS))>;
2667 def : T2Pat<(xor rGPR:$LHS, t2_so_imm2part:$RHS),
2668 (t2EORri (t2EORri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2669 (t2_so_imm2part_2 imm:$RHS))>;
2670 def : T2Pat<(add rGPR:$LHS, t2_so_imm2part:$RHS),
2671 (t2ADDri (t2ADDri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2672 (t2_so_imm2part_2 imm:$RHS))>;
2673 def : T2Pat<(add rGPR:$LHS, t2_so_neg_imm2part:$RHS),
2674 (t2SUBri (t2SUBri rGPR:$LHS, (t2_so_neg_imm2part_1 imm:$RHS)),
2675 (t2_so_neg_imm2part_2 imm:$RHS))>;
2677 // 32-bit immediate using movw + movt.
2678 // This is a single pseudo instruction to make it re-materializable.
2679 // FIXME: Remove this when we can do generalized remat.
2680 let isReMaterializable = 1 in
2681 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
2682 "", [(set rGPR:$dst, (i32 imm:$src))]>,
2683 Requires<[IsThumb, HasV6T2]>;
2685 // ConstantPool, GlobalAddress, and JumpTable
2686 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
2687 Requires<[IsThumb2, DontUseMovt]>;
2688 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
2689 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
2690 Requires<[IsThumb2, UseMovt]>;
2692 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
2693 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
2695 // Pseudo instruction that combines ldr from constpool and add pc. This should
2696 // be expanded into two instructions late to allow if-conversion and
2698 let canFoldAsLoad = 1, isReMaterializable = 1 in
2699 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
2701 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
2703 Requires<[IsThumb2]>;
2705 //===----------------------------------------------------------------------===//
2706 // Move between special register and ARM core register -- for disassembly only
2710 def t2MRS : T2I<(outs rGPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, cpsr",
2711 [/* For disassembly only; pattern left blank */]> {
2712 let Inst{31-27} = 0b11110;
2714 let Inst{25-21} = 0b11111;
2715 let Inst{20} = 0; // The R bit.
2716 let Inst{15-14} = 0b10;
2721 def t2MRSsys : T2I<(outs rGPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, spsr",
2722 [/* For disassembly only; pattern left blank */]> {
2723 let Inst{31-27} = 0b11110;
2725 let Inst{25-21} = 0b11111;
2726 let Inst{20} = 1; // The R bit.
2727 let Inst{15-14} = 0b10;
2732 def t2MSR : T2I<(outs), (ins rGPR:$src, msr_mask:$mask), NoItinerary, "msr",
2733 "\tcpsr$mask, $src",
2734 [/* For disassembly only; pattern left blank */]> {
2735 let Inst{31-27} = 0b11110;
2737 let Inst{25-21} = 0b11100;
2738 let Inst{20} = 0; // The R bit.
2739 let Inst{15-14} = 0b10;
2744 def t2MSRsys : T2I<(outs), (ins rGPR:$src, msr_mask:$mask), NoItinerary, "msr",
2745 "\tspsr$mask, $src",
2746 [/* For disassembly only; pattern left blank */]> {
2747 let Inst{31-27} = 0b11110;
2749 let Inst{25-21} = 0b11100;
2750 let Inst{20} = 1; // The R bit.
2751 let Inst{15-14} = 0b10;