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:$addr))]> {
605 let Inst{31-27} = 0b11111;
606 let Inst{26-25} = 0b00;
607 let Inst{24} = signed;
609 let Inst{22-21} = opcod;
610 let Inst{20} = 1; // load
611 let Inst{11-6} = 0b000000;
614 // FIXME: Is the pci variant actually needed?
615 def pci : T2Ipc <(outs GPR:$dst), (ins i32imm:$addr), iii,
616 opc, ".w\t$dst, $addr",
617 [(set GPR:$dst, (opnode (ARMWrapper tconstpool:$addr)))]> {
618 let isReMaterializable = 1;
619 let Inst{31-27} = 0b11111;
620 let Inst{26-25} = 0b00;
621 let Inst{24} = signed;
622 let Inst{23} = ?; // add = (U == '1')
623 let Inst{22-21} = opcod;
624 let Inst{20} = 1; // load
625 let Inst{19-16} = 0b1111; // Rn
629 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
630 multiclass T2I_st<bits<2> opcod, string opc,
631 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
632 def i12 : T2Ii12<(outs), (ins GPR:$src, t2addrmode_imm12:$addr), iii,
633 opc, ".w\t$src, $addr",
634 [(opnode GPR:$src, t2addrmode_imm12:$addr)]> {
635 let Inst{31-27} = 0b11111;
636 let Inst{26-23} = 0b0001;
637 let Inst{22-21} = opcod;
638 let Inst{20} = 0; // !load
640 def i8 : T2Ii8 <(outs), (ins GPR:$src, t2addrmode_imm8:$addr), iii,
641 opc, "\t$src, $addr",
642 [(opnode GPR:$src, t2addrmode_imm8:$addr)]> {
643 let Inst{31-27} = 0b11111;
644 let Inst{26-23} = 0b0000;
645 let Inst{22-21} = opcod;
646 let Inst{20} = 0; // !load
648 // Offset: index==TRUE, wback==FALSE
649 let Inst{10} = 1; // The P bit.
650 let Inst{8} = 0; // The W bit.
652 def s : T2Iso <(outs), (ins GPR:$src, t2addrmode_so_reg:$addr), iis,
653 opc, ".w\t$src, $addr",
654 [(opnode GPR:$src, t2addrmode_so_reg:$addr)]> {
655 let Inst{31-27} = 0b11111;
656 let Inst{26-23} = 0b0000;
657 let Inst{22-21} = opcod;
658 let Inst{20} = 0; // !load
659 let Inst{11-6} = 0b000000;
663 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
664 /// register and one whose operand is a register rotated by 8/16/24.
665 multiclass T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> {
666 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iEXTr,
667 opc, ".w\t$dst, $src",
668 [(set rGPR:$dst, (opnode rGPR:$src))]> {
669 let Inst{31-27} = 0b11111;
670 let Inst{26-23} = 0b0100;
671 let Inst{22-20} = opcod;
672 let Inst{19-16} = 0b1111; // Rn
673 let Inst{15-12} = 0b1111;
675 let Inst{5-4} = 0b00; // rotate
677 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iEXTr,
678 opc, ".w\t$dst, $src, ror $rot",
679 [(set rGPR:$dst, (opnode (rotr rGPR:$src, rot_imm:$rot)))]> {
680 let Inst{31-27} = 0b11111;
681 let Inst{26-23} = 0b0100;
682 let Inst{22-20} = opcod;
683 let Inst{19-16} = 0b1111; // Rn
684 let Inst{15-12} = 0b1111;
686 let Inst{5-4} = {?,?}; // rotate
690 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
691 multiclass T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
692 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iEXTr,
694 [(set rGPR:$dst, (opnode rGPR:$src))]>,
695 Requires<[HasT2ExtractPack, IsThumb2]> {
696 let Inst{31-27} = 0b11111;
697 let Inst{26-23} = 0b0100;
698 let Inst{22-20} = opcod;
699 let Inst{19-16} = 0b1111; // Rn
700 let Inst{15-12} = 0b1111;
702 let Inst{5-4} = 0b00; // rotate
704 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iEXTr,
705 opc, "\t$dst, $src, ror $rot",
706 [(set rGPR:$dst, (opnode (rotr rGPR:$src, rot_imm:$rot)))]>,
707 Requires<[HasT2ExtractPack, IsThumb2]> {
708 let Inst{31-27} = 0b11111;
709 let Inst{26-23} = 0b0100;
710 let Inst{22-20} = opcod;
711 let Inst{19-16} = 0b1111; // Rn
712 let Inst{15-12} = 0b1111;
714 let Inst{5-4} = {?,?}; // rotate
718 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
720 multiclass T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> {
721 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iEXTr,
722 opc, "\t$dst, $src", []> {
723 let Inst{31-27} = 0b11111;
724 let Inst{26-23} = 0b0100;
725 let Inst{22-20} = opcod;
726 let Inst{19-16} = 0b1111; // Rn
727 let Inst{15-12} = 0b1111;
729 let Inst{5-4} = 0b00; // rotate
731 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iEXTr,
732 opc, "\t$dst, $src, ror $rot", []> {
733 let Inst{31-27} = 0b11111;
734 let Inst{26-23} = 0b0100;
735 let Inst{22-20} = opcod;
736 let Inst{19-16} = 0b1111; // Rn
737 let Inst{15-12} = 0b1111;
739 let Inst{5-4} = {?,?}; // rotate
743 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
744 /// register and one whose operand is a register rotated by 8/16/24.
745 multiclass T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> {
746 def rr : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS), IIC_iEXTAr,
747 opc, "\t$dst, $LHS, $RHS",
748 [(set rGPR:$dst, (opnode rGPR:$LHS, rGPR:$RHS))]>,
749 Requires<[HasT2ExtractPack, IsThumb2]> {
750 let Inst{31-27} = 0b11111;
751 let Inst{26-23} = 0b0100;
752 let Inst{22-20} = opcod;
753 let Inst{15-12} = 0b1111;
755 let Inst{5-4} = 0b00; // rotate
757 def rr_rot : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS, i32imm:$rot),
758 IIC_iEXTAsr, opc, "\t$dst, $LHS, $RHS, ror $rot",
759 [(set rGPR:$dst, (opnode rGPR:$LHS,
760 (rotr rGPR:$RHS, rot_imm:$rot)))]>,
761 Requires<[HasT2ExtractPack, IsThumb2]> {
762 let Inst{31-27} = 0b11111;
763 let Inst{26-23} = 0b0100;
764 let Inst{22-20} = opcod;
765 let Inst{15-12} = 0b1111;
767 let Inst{5-4} = {?,?}; // rotate
771 // DO variant - disassembly only, no pattern
773 multiclass T2I_exta_rrot_DO<bits<3> opcod, string opc> {
774 def rr : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS), IIC_iEXTAr,
775 opc, "\t$dst, $LHS, $RHS", []> {
776 let Inst{31-27} = 0b11111;
777 let Inst{26-23} = 0b0100;
778 let Inst{22-20} = opcod;
779 let Inst{15-12} = 0b1111;
781 let Inst{5-4} = 0b00; // rotate
783 def rr_rot : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS, i32imm:$rot),
784 IIC_iEXTAsr, opc, "\t$dst, $LHS, $RHS, ror $rot", []> {
785 let Inst{31-27} = 0b11111;
786 let Inst{26-23} = 0b0100;
787 let Inst{22-20} = opcod;
788 let Inst{15-12} = 0b1111;
790 let Inst{5-4} = {?,?}; // rotate
794 //===----------------------------------------------------------------------===//
796 //===----------------------------------------------------------------------===//
798 //===----------------------------------------------------------------------===//
799 // Miscellaneous Instructions.
802 // LEApcrel - Load a pc-relative address into a register without offending the
804 let neverHasSideEffects = 1 in {
805 let isReMaterializable = 1 in
806 def t2LEApcrel : T2XI<(outs rGPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
807 "adr${p}.w\t$dst, #$label", []> {
808 let Inst{31-27} = 0b11110;
809 let Inst{25-24} = 0b10;
810 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
813 let Inst{19-16} = 0b1111; // Rn
816 } // neverHasSideEffects
817 def t2LEApcrelJT : T2XI<(outs rGPR:$dst),
818 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
819 "adr${p}.w\t$dst, #${label}_${id}", []> {
820 let Inst{31-27} = 0b11110;
821 let Inst{25-24} = 0b10;
822 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
825 let Inst{19-16} = 0b1111; // Rn
829 // ADD r, sp, {so_imm|i12}
830 def t2ADDrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
831 IIC_iALUi, "add", ".w\t$dst, $sp, $imm", []> {
832 let Inst{31-27} = 0b11110;
834 let Inst{24-21} = 0b1000;
835 let Inst{20} = ?; // The S bit.
836 let Inst{19-16} = 0b1101; // Rn = sp
839 def t2ADDrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
840 IIC_iALUi, "addw", "\t$dst, $sp, $imm", []> {
841 let Inst{31-27} = 0b11110;
843 let Inst{24-21} = 0b0000;
844 let Inst{20} = 0; // The S bit.
845 let Inst{19-16} = 0b1101; // Rn = sp
850 def t2ADDrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
851 IIC_iALUsi, "add", ".w\t$dst, $sp, $rhs", []> {
852 let Inst{31-27} = 0b11101;
853 let Inst{26-25} = 0b01;
854 let Inst{24-21} = 0b1000;
855 let Inst{20} = ?; // The S bit.
856 let Inst{19-16} = 0b1101; // Rn = sp
860 // SUB r, sp, {so_imm|i12}
861 def t2SUBrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
862 IIC_iALUi, "sub", ".w\t$dst, $sp, $imm", []> {
863 let Inst{31-27} = 0b11110;
865 let Inst{24-21} = 0b1101;
866 let Inst{20} = ?; // The S bit.
867 let Inst{19-16} = 0b1101; // Rn = sp
870 def t2SUBrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
871 IIC_iALUi, "subw", "\t$dst, $sp, $imm", []> {
872 let Inst{31-27} = 0b11110;
874 let Inst{24-21} = 0b0101;
875 let Inst{20} = 0; // The S bit.
876 let Inst{19-16} = 0b1101; // Rn = sp
881 def t2SUBrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
883 "sub", "\t$dst, $sp, $rhs", []> {
884 let Inst{31-27} = 0b11101;
885 let Inst{26-25} = 0b01;
886 let Inst{24-21} = 0b1101;
887 let Inst{20} = ?; // The S bit.
888 let Inst{19-16} = 0b1101; // Rn = sp
892 // Signed and unsigned division on v7-M
893 def t2SDIV : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iALUi,
894 "sdiv", "\t$dst, $a, $b",
895 [(set rGPR:$dst, (sdiv rGPR:$a, rGPR:$b))]>,
896 Requires<[HasDivide]> {
897 let Inst{31-27} = 0b11111;
898 let Inst{26-21} = 0b011100;
900 let Inst{15-12} = 0b1111;
901 let Inst{7-4} = 0b1111;
904 def t2UDIV : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iALUi,
905 "udiv", "\t$dst, $a, $b",
906 [(set rGPR:$dst, (udiv rGPR:$a, rGPR:$b))]>,
907 Requires<[HasDivide]> {
908 let Inst{31-27} = 0b11111;
909 let Inst{26-21} = 0b011101;
911 let Inst{15-12} = 0b1111;
912 let Inst{7-4} = 0b1111;
915 //===----------------------------------------------------------------------===//
916 // Load / store Instructions.
920 let canFoldAsLoad = 1, isReMaterializable = 1 in
921 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
922 UnOpFrag<(load node:$Src)>>;
924 // Loads with zero extension
925 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
926 UnOpFrag<(zextloadi16 node:$Src)>>;
927 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
928 UnOpFrag<(zextloadi8 node:$Src)>>;
930 // Loads with sign extension
931 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
932 UnOpFrag<(sextloadi16 node:$Src)>>;
933 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
934 UnOpFrag<(sextloadi8 node:$Src)>>;
936 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1,
937 isCodeGenOnly = 1 in { // $dst doesn't exist in asmstring?
939 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
940 (ins t2addrmode_imm8s4:$addr),
941 IIC_iLoad_d_i, "ldrd", "\t$dst1, $addr", []>;
942 def t2LDRDpci : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
943 (ins i32imm:$addr), IIC_iLoad_d_i,
944 "ldrd", "\t$dst1, $addr", []> {
945 let Inst{19-16} = 0b1111; // Rn
947 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
949 // zextload i1 -> zextload i8
950 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
951 (t2LDRBi12 t2addrmode_imm12:$addr)>;
952 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
953 (t2LDRBi8 t2addrmode_imm8:$addr)>;
954 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
955 (t2LDRBs t2addrmode_so_reg:$addr)>;
956 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
957 (t2LDRBpci tconstpool:$addr)>;
959 // extload -> zextload
960 // FIXME: Reduce the number of patterns by legalizing extload to zextload
962 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
963 (t2LDRBi12 t2addrmode_imm12:$addr)>;
964 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
965 (t2LDRBi8 t2addrmode_imm8:$addr)>;
966 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
967 (t2LDRBs t2addrmode_so_reg:$addr)>;
968 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
969 (t2LDRBpci tconstpool:$addr)>;
971 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
972 (t2LDRBi12 t2addrmode_imm12:$addr)>;
973 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
974 (t2LDRBi8 t2addrmode_imm8:$addr)>;
975 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
976 (t2LDRBs t2addrmode_so_reg:$addr)>;
977 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
978 (t2LDRBpci tconstpool:$addr)>;
980 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
981 (t2LDRHi12 t2addrmode_imm12:$addr)>;
982 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
983 (t2LDRHi8 t2addrmode_imm8:$addr)>;
984 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
985 (t2LDRHs t2addrmode_so_reg:$addr)>;
986 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
987 (t2LDRHpci tconstpool:$addr)>;
989 // FIXME: The destination register of the loads and stores can't be PC, but
990 // can be SP. We need another regclass (similar to rGPR) to represent
991 // that. Not a pressing issue since these are selected manually,
995 let mayLoad = 1, neverHasSideEffects = 1 in {
996 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$dst, GPR:$base_wb),
997 (ins t2addrmode_imm8:$addr),
998 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
999 "ldr", "\t$dst, $addr!", "$addr.base = $base_wb",
1002 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1003 (ins GPR:$base, t2am_imm8_offset:$offset),
1004 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1005 "ldr", "\t$dst, [$base], $offset", "$base = $base_wb",
1008 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1009 (ins t2addrmode_imm8:$addr),
1010 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1011 "ldrb", "\t$dst, $addr!", "$addr.base = $base_wb",
1013 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1014 (ins GPR:$base, t2am_imm8_offset:$offset),
1015 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1016 "ldrb", "\t$dst, [$base], $offset", "$base = $base_wb",
1019 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1020 (ins t2addrmode_imm8:$addr),
1021 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1022 "ldrh", "\t$dst, $addr!", "$addr.base = $base_wb",
1024 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1025 (ins GPR:$base, t2am_imm8_offset:$offset),
1026 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1027 "ldrh", "\t$dst, [$base], $offset", "$base = $base_wb",
1030 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1031 (ins t2addrmode_imm8:$addr),
1032 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1033 "ldrsb", "\t$dst, $addr!", "$addr.base = $base_wb",
1035 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1036 (ins GPR:$base, t2am_imm8_offset:$offset),
1037 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1038 "ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb",
1041 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1042 (ins t2addrmode_imm8:$addr),
1043 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1044 "ldrsh", "\t$dst, $addr!", "$addr.base = $base_wb",
1046 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1047 (ins GPR:$base, t2am_imm8_offset:$offset),
1048 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1049 "ldrsh", "\t$dst, [$base], $offset", "$base = $base_wb",
1051 } // mayLoad = 1, neverHasSideEffects = 1
1053 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1054 // for disassembly only.
1055 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1056 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1057 : T2Ii8<(outs GPR:$dst), (ins t2addrmode_imm8:$addr), ii, opc,
1058 "\t$dst, $addr", []> {
1059 let Inst{31-27} = 0b11111;
1060 let Inst{26-25} = 0b00;
1061 let Inst{24} = signed;
1063 let Inst{22-21} = type;
1064 let Inst{20} = 1; // load
1066 let Inst{10-8} = 0b110; // PUW.
1069 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1070 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1071 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1072 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1073 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1076 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1077 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1078 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1079 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1080 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1081 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1084 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1,
1085 isCodeGenOnly = 1 in // $src2 doesn't exist in asm string
1086 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1087 (ins GPR:$src1, GPR:$src2, t2addrmode_imm8s4:$addr),
1088 IIC_iStore_d_r, "strd", "\t$src1, $addr", []>;
1091 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1092 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1093 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1094 "str", "\t$src, [$base, $offset]!", "$base = $base_wb",
1096 (pre_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1098 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1099 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1100 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1101 "str", "\t$src, [$base], $offset", "$base = $base_wb",
1103 (post_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1105 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1106 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1107 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1108 "strh", "\t$src, [$base, $offset]!", "$base = $base_wb",
1110 (pre_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1112 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1113 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1114 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1115 "strh", "\t$src, [$base], $offset", "$base = $base_wb",
1117 (post_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1119 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1120 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1121 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1122 "strb", "\t$src, [$base, $offset]!", "$base = $base_wb",
1124 (pre_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1126 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1127 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1128 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1129 "strb", "\t$src, [$base], $offset", "$base = $base_wb",
1131 (post_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1133 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1135 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1136 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1137 : T2Ii8<(outs GPR:$src), (ins t2addrmode_imm8:$addr), ii, opc,
1138 "\t$src, $addr", []> {
1139 let Inst{31-27} = 0b11111;
1140 let Inst{26-25} = 0b00;
1141 let Inst{24} = 0; // not signed
1143 let Inst{22-21} = type;
1144 let Inst{20} = 0; // store
1146 let Inst{10-8} = 0b110; // PUW
1149 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1150 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1151 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1153 // ldrd / strd pre / post variants
1154 // For disassembly only.
1156 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1157 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1158 "ldrd", "\t$dst1, $dst2, [$base, $imm]!", []>;
1160 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1161 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1162 "ldrd", "\t$dst1, $dst2, [$base], $imm", []>;
1164 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1165 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1166 IIC_iStore_d_ru, "strd", "\t$src1, $src2, [$base, $imm]!", []>;
1168 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1169 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1170 IIC_iStore_d_ru, "strd", "\t$src1, $src2, [$base], $imm", []>;
1172 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1173 // data/instruction access. These are for disassembly only.
1174 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1175 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1176 multiclass T2Ipl<bits<2> instr_write, string opc> {
1178 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1180 [(ARMPreload t2addrmode_imm12:$addr, (i32 instr_write))]> {
1181 let Inst{31-25} = 0b1111100;
1182 let Inst{24} = instr_write{1};
1183 let Inst{23} = 1; // U = 1
1185 let Inst{21} = instr_write{0};
1187 let Inst{15-12} = 0b1111;
1190 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1192 [(ARMPreload t2addrmode_imm8:$addr, (i32 instr_write))]> {
1193 let Inst{31-25} = 0b1111100;
1194 let Inst{24} = instr_write{1};
1195 let Inst{23} = 0; // U = 0
1197 let Inst{21} = instr_write{0};
1199 let Inst{15-12} = 0b1111;
1200 let Inst{11-8} = 0b1100;
1203 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1205 [(ARMPreload t2addrmode_so_reg:$addr, (i32 instr_write))]> {
1206 let Inst{31-25} = 0b1111100;
1207 let Inst{24} = instr_write{1};
1208 let Inst{23} = 0; // add = TRUE for T1
1210 let Inst{21} = instr_write{0};
1212 let Inst{15-12} = 0b1111;
1213 let Inst{11-6} = 0000000;
1216 let isCodeGenOnly = 1 in
1217 def pci : T2Ipc<(outs), (ins i32imm:$addr), IIC_Preload, opc,
1220 let Inst{31-25} = 0b1111100;
1221 let Inst{24} = instr_write{1};
1222 let Inst{23} = ?; // add = (U == 1)
1224 let Inst{21} = instr_write{0};
1226 let Inst{19-16} = 0b1111; // Rn = 0b1111
1227 let Inst{15-12} = 0b1111;
1231 defm t2PLD : T2Ipl<0, "pld">, Requires<[IsThumb2]>;
1232 defm t2PLDW : T2Ipl<1, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1233 defm t2PLI : T2Ipl<2, "pli">, Requires<[IsThumb2,HasV7]>;
1235 //===----------------------------------------------------------------------===//
1236 // Load / store multiple Instructions.
1239 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1,
1240 isCodeGenOnly = 1 in {
1241 def t2LDM : T2XI<(outs), (ins GPR:$Rn, ldstm_mode:$amode, pred:$p,
1242 reglist:$dsts, variable_ops), IIC_iLoad_m,
1243 "ldm${amode}${p}.w\t$Rn, $dsts", []> {
1244 let Inst{31-27} = 0b11101;
1245 let Inst{26-25} = 0b00;
1246 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1248 let Inst{21} = 0; // The W bit.
1249 let Inst{20} = 1; // Load
1252 def t2LDM_UPD : T2XIt<(outs GPR:$wb), (ins GPR:$Rn, ldstm_mode:$amode, pred:$p,
1253 reglist:$dsts, variable_ops),
1255 "ldm${amode}${p}.w\t$Rn!, $dsts",
1257 let Inst{31-27} = 0b11101;
1258 let Inst{26-25} = 0b00;
1259 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1261 let Inst{21} = 1; // The W bit.
1262 let Inst{20} = 1; // Load
1264 } // mayLoad, neverHasSideEffects, hasExtraDefRegAllocReq
1266 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1,
1267 isCodeGenOnly = 1 in {
1268 def t2STM : T2XI<(outs), (ins GPR:$Rn, ldstm_mode:$amode, pred:$p,
1269 reglist:$srcs, variable_ops), IIC_iStore_m,
1270 "stm${amode}${p}.w\t$Rn, $srcs", []> {
1271 let Inst{31-27} = 0b11101;
1272 let Inst{26-25} = 0b00;
1273 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1275 let Inst{21} = 0; // The W bit.
1276 let Inst{20} = 0; // Store
1279 def t2STM_UPD : T2XIt<(outs GPR:$wb), (ins GPR:$Rn, ldstm_mode:$amode, pred:$p,
1280 reglist:$srcs, variable_ops),
1282 "stm${amode}${p}.w\t$Rn!, $srcs",
1284 let Inst{31-27} = 0b11101;
1285 let Inst{26-25} = 0b00;
1286 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1288 let Inst{21} = 1; // The W bit.
1289 let Inst{20} = 0; // Store
1291 } // mayStore, neverHasSideEffects, hasExtraSrcRegAllocReq
1293 //===----------------------------------------------------------------------===//
1294 // Move Instructions.
1297 let neverHasSideEffects = 1 in
1298 def t2MOVr : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
1299 "mov", ".w\t$dst, $src", []> {
1300 let Inst{31-27} = 0b11101;
1301 let Inst{26-25} = 0b01;
1302 let Inst{24-21} = 0b0010;
1303 let Inst{20} = ?; // The S bit.
1304 let Inst{19-16} = 0b1111; // Rn
1305 let Inst{14-12} = 0b000;
1306 let Inst{7-4} = 0b0000;
1309 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1310 let isReMaterializable = 1, isAsCheapAsAMove = 1, AddedComplexity = 1 in
1311 def t2MOVi : T2sI<(outs rGPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
1312 "mov", ".w\t$dst, $src",
1313 [(set rGPR:$dst, t2_so_imm:$src)]> {
1314 let Inst{31-27} = 0b11110;
1316 let Inst{24-21} = 0b0010;
1317 let Inst{20} = ?; // The S bit.
1318 let Inst{19-16} = 0b1111; // Rn
1322 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
1323 def t2MOVi16 : T2I<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVi,
1324 "movw", "\t$dst, $src",
1325 [(set rGPR:$dst, imm0_65535:$src)]> {
1326 let Inst{31-27} = 0b11110;
1328 let Inst{24-21} = 0b0010;
1329 let Inst{20} = 0; // The S bit.
1333 let Constraints = "$src = $dst" in
1334 def t2MOVTi16 : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1335 "movt", "\t$dst, $imm",
1337 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1338 let Inst{31-27} = 0b11110;
1340 let Inst{24-21} = 0b0110;
1341 let Inst{20} = 0; // The S bit.
1345 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1347 //===----------------------------------------------------------------------===//
1348 // Extend Instructions.
1353 defm t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1354 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1355 defm t2SXTH : T2I_ext_rrot<0b000, "sxth",
1356 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1357 defm t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1359 defm t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1360 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1361 defm t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1362 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1363 defm t2SXTAB16 : T2I_exta_rrot_DO<0b010, "sxtab16">;
1365 // TODO: SXT(A){B|H}16 - done for disassembly only
1369 let AddedComplexity = 16 in {
1370 defm t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1371 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1372 defm t2UXTH : T2I_ext_rrot<0b001, "uxth",
1373 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1374 defm t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1375 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1377 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1378 // The transformation should probably be done as a combiner action
1379 // instead so we can include a check for masking back in the upper
1380 // eight bits of the source into the lower eight bits of the result.
1381 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1382 // (t2UXTB16r_rot rGPR:$Src, 24)>,
1383 // Requires<[HasT2ExtractPack, IsThumb2]>;
1384 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1385 (t2UXTB16r_rot rGPR:$Src, 8)>,
1386 Requires<[HasT2ExtractPack, IsThumb2]>;
1388 defm t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1389 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1390 defm t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1391 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1392 defm t2UXTAB16 : T2I_exta_rrot_DO<0b011, "uxtab16">;
1395 //===----------------------------------------------------------------------===//
1396 // Arithmetic Instructions.
1399 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1400 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1401 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1402 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1404 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1405 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1406 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1407 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1408 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1409 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1410 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1412 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1413 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1414 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1415 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1416 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1417 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1418 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1419 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1422 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1423 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1424 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1425 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1427 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1428 // The assume-no-carry-in form uses the negation of the input since add/sub
1429 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1430 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1432 // The AddedComplexity preferences the first variant over the others since
1433 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1434 let AddedComplexity = 1 in
1435 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1436 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1437 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1438 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1439 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1440 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1441 let AddedComplexity = 1 in
1442 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1443 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1444 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1445 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1446 // The with-carry-in form matches bitwise not instead of the negation.
1447 // Effectively, the inverse interpretation of the carry flag already accounts
1448 // for part of the negation.
1449 let AddedComplexity = 1 in
1450 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1451 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1452 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1453 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1455 // Select Bytes -- for disassembly only
1457 def t2SEL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, "sel",
1458 "\t$dst, $a, $b", []> {
1459 let Inst{31-27} = 0b11111;
1460 let Inst{26-24} = 0b010;
1462 let Inst{22-20} = 0b010;
1463 let Inst{15-12} = 0b1111;
1465 let Inst{6-4} = 0b000;
1468 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1469 // And Miscellaneous operations -- for disassembly only
1470 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1471 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1472 : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), NoItinerary, opc,
1473 "\t$dst, $a, $b", pat> {
1474 let Inst{31-27} = 0b11111;
1475 let Inst{26-23} = 0b0101;
1476 let Inst{22-20} = op22_20;
1477 let Inst{15-12} = 0b1111;
1478 let Inst{7-4} = op7_4;
1481 // Saturating add/subtract -- for disassembly only
1483 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1484 [(set rGPR:$dst, (int_arm_qadd rGPR:$a, rGPR:$b))]>;
1485 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1486 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1487 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1488 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1489 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1490 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1491 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1492 [(set rGPR:$dst, (int_arm_qsub rGPR:$a, rGPR:$b))]>;
1493 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1494 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1495 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1496 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1497 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1498 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1499 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1500 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1502 // Signed/Unsigned add/subtract -- for disassembly only
1504 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1505 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1506 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1507 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1508 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1509 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1510 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1511 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1512 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1513 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1514 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1515 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1517 // Signed/Unsigned halving add/subtract -- for disassembly only
1519 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1520 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1521 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1522 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1523 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1524 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1525 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1526 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1527 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1528 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1529 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1530 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1532 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1534 def t2USAD8 : T2I_mac<0, 0b111, 0b0000, (outs rGPR:$dst),
1535 (ins rGPR:$a, rGPR:$b),
1536 NoItinerary, "usad8", "\t$dst, $a, $b", []> {
1537 let Inst{15-12} = 0b1111;
1539 def t2USADA8 : T2I_mac<0, 0b111, 0b0000, (outs rGPR:$dst),
1540 (ins rGPR:$a, rGPR:$b, rGPR:$acc), NoItinerary, "usada8",
1541 "\t$dst, $a, $b, $acc", []>;
1543 // Signed/Unsigned saturate -- for disassembly only
1545 def t2SSAT: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a, shift_imm:$sh),
1546 NoItinerary, "ssat", "\t$dst, $bit_pos, $a$sh",
1547 [/* For disassembly only; pattern left blank */]> {
1548 let Inst{31-27} = 0b11110;
1549 let Inst{25-22} = 0b1100;
1554 def t2SSAT16: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a), NoItinerary,
1555 "ssat16", "\t$dst, $bit_pos, $a",
1556 [/* For disassembly only; pattern left blank */]> {
1557 let Inst{31-27} = 0b11110;
1558 let Inst{25-22} = 0b1100;
1561 let Inst{21} = 1; // sh = '1'
1562 let Inst{14-12} = 0b000; // imm3 = '000'
1563 let Inst{7-6} = 0b00; // imm2 = '00'
1566 def t2USAT: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a, shift_imm:$sh),
1567 NoItinerary, "usat", "\t$dst, $bit_pos, $a$sh",
1568 [/* For disassembly only; pattern left blank */]> {
1569 let Inst{31-27} = 0b11110;
1570 let Inst{25-22} = 0b1110;
1575 def t2USAT16: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a), NoItinerary,
1576 "usat16", "\t$dst, $bit_pos, $a",
1577 [/* For disassembly only; pattern left blank */]> {
1578 let Inst{31-27} = 0b11110;
1579 let Inst{25-22} = 0b1110;
1582 let Inst{21} = 1; // sh = '1'
1583 let Inst{14-12} = 0b000; // imm3 = '000'
1584 let Inst{7-6} = 0b00; // imm2 = '00'
1587 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
1588 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
1590 //===----------------------------------------------------------------------===//
1591 // Shift and rotate Instructions.
1594 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
1595 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
1596 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
1597 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
1599 let Uses = [CPSR] in {
1600 def t2RRX : T2sI<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1601 "rrx", "\t$dst, $src",
1602 [(set rGPR:$dst, (ARMrrx rGPR:$src))]> {
1603 let Inst{31-27} = 0b11101;
1604 let Inst{26-25} = 0b01;
1605 let Inst{24-21} = 0b0010;
1606 let Inst{20} = ?; // The S bit.
1607 let Inst{19-16} = 0b1111; // Rn
1608 let Inst{14-12} = 0b000;
1609 let Inst{7-4} = 0b0011;
1613 let Defs = [CPSR] in {
1614 def t2MOVsrl_flag : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1615 "lsrs", ".w\t$dst, $src, #1",
1616 [(set rGPR:$dst, (ARMsrl_flag rGPR:$src))]> {
1617 let Inst{31-27} = 0b11101;
1618 let Inst{26-25} = 0b01;
1619 let Inst{24-21} = 0b0010;
1620 let Inst{20} = 1; // The S bit.
1621 let Inst{19-16} = 0b1111; // Rn
1622 let Inst{5-4} = 0b01; // Shift type.
1623 // Shift amount = Inst{14-12:7-6} = 1.
1624 let Inst{14-12} = 0b000;
1625 let Inst{7-6} = 0b01;
1627 def t2MOVsra_flag : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1628 "asrs", ".w\t$dst, $src, #1",
1629 [(set rGPR:$dst, (ARMsra_flag rGPR:$src))]> {
1630 let Inst{31-27} = 0b11101;
1631 let Inst{26-25} = 0b01;
1632 let Inst{24-21} = 0b0010;
1633 let Inst{20} = 1; // The S bit.
1634 let Inst{19-16} = 0b1111; // Rn
1635 let Inst{5-4} = 0b10; // Shift type.
1636 // Shift amount = Inst{14-12:7-6} = 1.
1637 let Inst{14-12} = 0b000;
1638 let Inst{7-6} = 0b01;
1642 //===----------------------------------------------------------------------===//
1643 // Bitwise Instructions.
1646 defm t2AND : T2I_bin_w_irs<0b0000, "and",
1647 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1648 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
1649 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
1650 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1651 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
1652 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
1653 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1654 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
1656 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
1657 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1658 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
1660 let Constraints = "$src = $dst" in
1661 def t2BFC : T2I<(outs rGPR:$dst), (ins rGPR:$src, bf_inv_mask_imm:$imm),
1662 IIC_iUNAsi, "bfc", "\t$dst, $imm",
1663 [(set rGPR:$dst, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
1664 let Inst{31-27} = 0b11110;
1666 let Inst{24-20} = 0b10110;
1667 let Inst{19-16} = 0b1111; // Rn
1671 def t2SBFX: T2I<(outs rGPR:$dst), (ins rGPR:$src, imm0_31:$lsb, imm0_31:$width),
1672 IIC_iUNAsi, "sbfx", "\t$dst, $src, $lsb, $width", []> {
1673 let Inst{31-27} = 0b11110;
1675 let Inst{24-20} = 0b10100;
1679 def t2UBFX: T2I<(outs rGPR:$dst), (ins rGPR:$src, imm0_31:$lsb, imm0_31:$width),
1680 IIC_iUNAsi, "ubfx", "\t$dst, $src, $lsb, $width", []> {
1681 let Inst{31-27} = 0b11110;
1683 let Inst{24-20} = 0b11100;
1687 // A8.6.18 BFI - Bitfield insert (Encoding T1)
1688 let Constraints = "$src = $dst" in
1689 def t2BFI : T2I<(outs rGPR:$dst),
1690 (ins rGPR:$src, rGPR:$val, bf_inv_mask_imm:$imm),
1691 IIC_iBITi, "bfi", "\t$dst, $val, $imm",
1692 [(set rGPR:$dst, (ARMbfi rGPR:$src, rGPR:$val,
1693 bf_inv_mask_imm:$imm))]> {
1694 let Inst{31-27} = 0b11110;
1696 let Inst{24-20} = 0b10110;
1700 defm t2ORN : T2I_bin_irs<0b0011, "orn",
1701 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1702 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
1704 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
1705 let AddedComplexity = 1 in
1706 defm t2MVN : T2I_un_irs <0b0011, "mvn",
1707 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
1708 UnOpFrag<(not node:$Src)>, 1, 1>;
1711 let AddedComplexity = 1 in
1712 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
1713 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
1715 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
1716 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
1717 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
1718 Requires<[IsThumb2]>;
1720 def : T2Pat<(t2_so_imm_not:$src),
1721 (t2MVNi t2_so_imm_not:$src)>;
1723 //===----------------------------------------------------------------------===//
1724 // Multiply Instructions.
1726 let isCommutable = 1 in
1727 def t2MUL: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1728 "mul", "\t$dst, $a, $b",
1729 [(set rGPR:$dst, (mul rGPR:$a, rGPR:$b))]> {
1730 let Inst{31-27} = 0b11111;
1731 let Inst{26-23} = 0b0110;
1732 let Inst{22-20} = 0b000;
1733 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1734 let Inst{7-4} = 0b0000; // Multiply
1737 def t2MLA: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1738 "mla", "\t$dst, $a, $b, $c",
1739 [(set rGPR:$dst, (add (mul rGPR:$a, rGPR:$b), rGPR:$c))]> {
1740 let Inst{31-27} = 0b11111;
1741 let Inst{26-23} = 0b0110;
1742 let Inst{22-20} = 0b000;
1743 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1744 let Inst{7-4} = 0b0000; // Multiply
1747 def t2MLS: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1748 "mls", "\t$dst, $a, $b, $c",
1749 [(set rGPR:$dst, (sub rGPR:$c, (mul rGPR:$a, rGPR:$b)))]> {
1750 let Inst{31-27} = 0b11111;
1751 let Inst{26-23} = 0b0110;
1752 let Inst{22-20} = 0b000;
1753 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1754 let Inst{7-4} = 0b0001; // Multiply and Subtract
1757 // Extra precision multiplies with low / high results
1758 let neverHasSideEffects = 1 in {
1759 let isCommutable = 1 in {
1760 def t2SMULL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1761 (ins rGPR:$a, rGPR:$b), IIC_iMUL64,
1762 "smull", "\t$ldst, $hdst, $a, $b", []> {
1763 let Inst{31-27} = 0b11111;
1764 let Inst{26-23} = 0b0111;
1765 let Inst{22-20} = 0b000;
1766 let Inst{7-4} = 0b0000;
1769 def t2UMULL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1770 (ins rGPR:$a, rGPR:$b), IIC_iMUL64,
1771 "umull", "\t$ldst, $hdst, $a, $b", []> {
1772 let Inst{31-27} = 0b11111;
1773 let Inst{26-23} = 0b0111;
1774 let Inst{22-20} = 0b010;
1775 let Inst{7-4} = 0b0000;
1779 // Multiply + accumulate
1780 def t2SMLAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1781 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1782 "smlal", "\t$ldst, $hdst, $a, $b", []>{
1783 let Inst{31-27} = 0b11111;
1784 let Inst{26-23} = 0b0111;
1785 let Inst{22-20} = 0b100;
1786 let Inst{7-4} = 0b0000;
1789 def t2UMLAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1790 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1791 "umlal", "\t$ldst, $hdst, $a, $b", []>{
1792 let Inst{31-27} = 0b11111;
1793 let Inst{26-23} = 0b0111;
1794 let Inst{22-20} = 0b110;
1795 let Inst{7-4} = 0b0000;
1798 def t2UMAAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1799 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1800 "umaal", "\t$ldst, $hdst, $a, $b", []>{
1801 let Inst{31-27} = 0b11111;
1802 let Inst{26-23} = 0b0111;
1803 let Inst{22-20} = 0b110;
1804 let Inst{7-4} = 0b0110;
1806 } // neverHasSideEffects
1808 // Rounding variants of the below included for disassembly only
1810 // Most significant word multiply
1811 def t2SMMUL : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1812 "smmul", "\t$dst, $a, $b",
1813 [(set rGPR:$dst, (mulhs rGPR:$a, rGPR:$b))]> {
1814 let Inst{31-27} = 0b11111;
1815 let Inst{26-23} = 0b0110;
1816 let Inst{22-20} = 0b101;
1817 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1818 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1821 def t2SMMULR : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1822 "smmulr", "\t$dst, $a, $b", []> {
1823 let Inst{31-27} = 0b11111;
1824 let Inst{26-23} = 0b0110;
1825 let Inst{22-20} = 0b101;
1826 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1827 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1830 def t2SMMLA : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1831 "smmla", "\t$dst, $a, $b, $c",
1832 [(set rGPR:$dst, (add (mulhs rGPR:$a, rGPR:$b), rGPR:$c))]> {
1833 let Inst{31-27} = 0b11111;
1834 let Inst{26-23} = 0b0110;
1835 let Inst{22-20} = 0b101;
1836 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1837 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1840 def t2SMMLAR: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1841 "smmlar", "\t$dst, $a, $b, $c", []> {
1842 let Inst{31-27} = 0b11111;
1843 let Inst{26-23} = 0b0110;
1844 let Inst{22-20} = 0b101;
1845 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1846 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1849 def t2SMMLS: T2I <(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1850 "smmls", "\t$dst, $a, $b, $c",
1851 [(set rGPR:$dst, (sub rGPR:$c, (mulhs rGPR:$a, rGPR:$b)))]> {
1852 let Inst{31-27} = 0b11111;
1853 let Inst{26-23} = 0b0110;
1854 let Inst{22-20} = 0b110;
1855 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1856 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1859 def t2SMMLSR:T2I <(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1860 "smmlsr", "\t$dst, $a, $b, $c", []> {
1861 let Inst{31-27} = 0b11111;
1862 let Inst{26-23} = 0b0110;
1863 let Inst{22-20} = 0b110;
1864 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1865 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1868 multiclass T2I_smul<string opc, PatFrag opnode> {
1869 def BB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1870 !strconcat(opc, "bb"), "\t$dst, $a, $b",
1871 [(set rGPR:$dst, (opnode (sext_inreg rGPR:$a, i16),
1872 (sext_inreg rGPR:$b, i16)))]> {
1873 let Inst{31-27} = 0b11111;
1874 let Inst{26-23} = 0b0110;
1875 let Inst{22-20} = 0b001;
1876 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1877 let Inst{7-6} = 0b00;
1878 let Inst{5-4} = 0b00;
1881 def BT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1882 !strconcat(opc, "bt"), "\t$dst, $a, $b",
1883 [(set rGPR:$dst, (opnode (sext_inreg rGPR:$a, i16),
1884 (sra rGPR:$b, (i32 16))))]> {
1885 let Inst{31-27} = 0b11111;
1886 let Inst{26-23} = 0b0110;
1887 let Inst{22-20} = 0b001;
1888 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1889 let Inst{7-6} = 0b00;
1890 let Inst{5-4} = 0b01;
1893 def TB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1894 !strconcat(opc, "tb"), "\t$dst, $a, $b",
1895 [(set rGPR:$dst, (opnode (sra rGPR:$a, (i32 16)),
1896 (sext_inreg rGPR:$b, i16)))]> {
1897 let Inst{31-27} = 0b11111;
1898 let Inst{26-23} = 0b0110;
1899 let Inst{22-20} = 0b001;
1900 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1901 let Inst{7-6} = 0b00;
1902 let Inst{5-4} = 0b10;
1905 def TT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1906 !strconcat(opc, "tt"), "\t$dst, $a, $b",
1907 [(set rGPR:$dst, (opnode (sra rGPR:$a, (i32 16)),
1908 (sra rGPR:$b, (i32 16))))]> {
1909 let Inst{31-27} = 0b11111;
1910 let Inst{26-23} = 0b0110;
1911 let Inst{22-20} = 0b001;
1912 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1913 let Inst{7-6} = 0b00;
1914 let Inst{5-4} = 0b11;
1917 def WB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1918 !strconcat(opc, "wb"), "\t$dst, $a, $b",
1919 [(set rGPR:$dst, (sra (opnode rGPR:$a,
1920 (sext_inreg rGPR:$b, i16)), (i32 16)))]> {
1921 let Inst{31-27} = 0b11111;
1922 let Inst{26-23} = 0b0110;
1923 let Inst{22-20} = 0b011;
1924 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1925 let Inst{7-6} = 0b00;
1926 let Inst{5-4} = 0b00;
1929 def WT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1930 !strconcat(opc, "wt"), "\t$dst, $a, $b",
1931 [(set rGPR:$dst, (sra (opnode rGPR:$a,
1932 (sra rGPR:$b, (i32 16))), (i32 16)))]> {
1933 let Inst{31-27} = 0b11111;
1934 let Inst{26-23} = 0b0110;
1935 let Inst{22-20} = 0b011;
1936 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1937 let Inst{7-6} = 0b00;
1938 let Inst{5-4} = 0b01;
1943 multiclass T2I_smla<string opc, PatFrag opnode> {
1944 def BB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1945 !strconcat(opc, "bb"), "\t$dst, $a, $b, $acc",
1946 [(set rGPR:$dst, (add rGPR:$acc,
1947 (opnode (sext_inreg rGPR:$a, i16),
1948 (sext_inreg rGPR:$b, i16))))]> {
1949 let Inst{31-27} = 0b11111;
1950 let Inst{26-23} = 0b0110;
1951 let Inst{22-20} = 0b001;
1952 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1953 let Inst{7-6} = 0b00;
1954 let Inst{5-4} = 0b00;
1957 def BT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1958 !strconcat(opc, "bt"), "\t$dst, $a, $b, $acc",
1959 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sext_inreg rGPR:$a, i16),
1960 (sra rGPR:$b, (i32 16)))))]> {
1961 let Inst{31-27} = 0b11111;
1962 let Inst{26-23} = 0b0110;
1963 let Inst{22-20} = 0b001;
1964 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1965 let Inst{7-6} = 0b00;
1966 let Inst{5-4} = 0b01;
1969 def TB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1970 !strconcat(opc, "tb"), "\t$dst, $a, $b, $acc",
1971 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sra rGPR:$a, (i32 16)),
1972 (sext_inreg rGPR:$b, i16))))]> {
1973 let Inst{31-27} = 0b11111;
1974 let Inst{26-23} = 0b0110;
1975 let Inst{22-20} = 0b001;
1976 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1977 let Inst{7-6} = 0b00;
1978 let Inst{5-4} = 0b10;
1981 def TT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1982 !strconcat(opc, "tt"), "\t$dst, $a, $b, $acc",
1983 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sra rGPR:$a, (i32 16)),
1984 (sra rGPR:$b, (i32 16)))))]> {
1985 let Inst{31-27} = 0b11111;
1986 let Inst{26-23} = 0b0110;
1987 let Inst{22-20} = 0b001;
1988 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1989 let Inst{7-6} = 0b00;
1990 let Inst{5-4} = 0b11;
1993 def WB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1994 !strconcat(opc, "wb"), "\t$dst, $a, $b, $acc",
1995 [(set rGPR:$dst, (add rGPR:$acc, (sra (opnode rGPR:$a,
1996 (sext_inreg rGPR:$b, i16)), (i32 16))))]> {
1997 let Inst{31-27} = 0b11111;
1998 let Inst{26-23} = 0b0110;
1999 let Inst{22-20} = 0b011;
2000 let Inst{15-12} = {?, ?, ?, ?}; // Ra
2001 let Inst{7-6} = 0b00;
2002 let Inst{5-4} = 0b00;
2005 def WT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
2006 !strconcat(opc, "wt"), "\t$dst, $a, $b, $acc",
2007 [(set rGPR:$dst, (add rGPR:$acc, (sra (opnode rGPR:$a,
2008 (sra rGPR:$b, (i32 16))), (i32 16))))]> {
2009 let Inst{31-27} = 0b11111;
2010 let Inst{26-23} = 0b0110;
2011 let Inst{22-20} = 0b011;
2012 let Inst{15-12} = {?, ?, ?, ?}; // Ra
2013 let Inst{7-6} = 0b00;
2014 let Inst{5-4} = 0b01;
2018 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2019 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2021 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2022 def t2SMLALBB : T2I_mac<1, 0b100, 0b1000, (outs rGPR:$ldst,rGPR:$hdst),
2023 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlalbb", "\t$ldst, $hdst, $a, $b",
2024 [/* For disassembly only; pattern left blank */]>;
2025 def t2SMLALBT : T2I_mac<1, 0b100, 0b1001, (outs rGPR:$ldst,rGPR:$hdst),
2026 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlalbt", "\t$ldst, $hdst, $a, $b",
2027 [/* For disassembly only; pattern left blank */]>;
2028 def t2SMLALTB : T2I_mac<1, 0b100, 0b1010, (outs rGPR:$ldst,rGPR:$hdst),
2029 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaltb", "\t$ldst, $hdst, $a, $b",
2030 [/* For disassembly only; pattern left blank */]>;
2031 def t2SMLALTT : T2I_mac<1, 0b100, 0b1011, (outs rGPR:$ldst,rGPR:$hdst),
2032 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaltt", "\t$ldst, $hdst, $a, $b",
2033 [/* For disassembly only; pattern left blank */]>;
2035 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2036 // These are for disassembly only.
2038 def t2SMUAD: T2I_mac<0, 0b010, 0b0000, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2039 IIC_iMAC32, "smuad", "\t$dst, $a, $b", []> {
2040 let Inst{15-12} = 0b1111;
2042 def t2SMUADX:T2I_mac<0, 0b010, 0b0001, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2043 IIC_iMAC32, "smuadx", "\t$dst, $a, $b", []> {
2044 let Inst{15-12} = 0b1111;
2046 def t2SMUSD: T2I_mac<0, 0b100, 0b0000, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2047 IIC_iMAC32, "smusd", "\t$dst, $a, $b", []> {
2048 let Inst{15-12} = 0b1111;
2050 def t2SMUSDX:T2I_mac<0, 0b100, 0b0001, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2051 IIC_iMAC32, "smusdx", "\t$dst, $a, $b", []> {
2052 let Inst{15-12} = 0b1111;
2054 def t2SMLAD : T2I_mac<0, 0b010, 0b0000, (outs rGPR:$dst),
2055 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlad",
2056 "\t$dst, $a, $b, $acc", []>;
2057 def t2SMLADX : T2I_mac<0, 0b010, 0b0001, (outs rGPR:$dst),
2058 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smladx",
2059 "\t$dst, $a, $b, $acc", []>;
2060 def t2SMLSD : T2I_mac<0, 0b100, 0b0000, (outs rGPR:$dst),
2061 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlsd",
2062 "\t$dst, $a, $b, $acc", []>;
2063 def t2SMLSDX : T2I_mac<0, 0b100, 0b0001, (outs rGPR:$dst),
2064 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlsdx",
2065 "\t$dst, $a, $b, $acc", []>;
2066 def t2SMLALD : T2I_mac<1, 0b100, 0b1100, (outs rGPR:$ldst,rGPR:$hdst),
2067 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlald",
2068 "\t$ldst, $hdst, $a, $b", []>;
2069 def t2SMLALDX : T2I_mac<1, 0b100, 0b1101, (outs rGPR:$ldst,rGPR:$hdst),
2070 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaldx",
2071 "\t$ldst, $hdst, $a, $b", []>;
2072 def t2SMLSLD : T2I_mac<1, 0b101, 0b1100, (outs rGPR:$ldst,rGPR:$hdst),
2073 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlsld",
2074 "\t$ldst, $hdst, $a, $b", []>;
2075 def t2SMLSLDX : T2I_mac<1, 0b101, 0b1101, (outs rGPR:$ldst,rGPR:$hdst),
2076 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlsldx",
2077 "\t$ldst, $hdst, $a, $b", []>;
2079 //===----------------------------------------------------------------------===//
2080 // Misc. Arithmetic Instructions.
2083 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2084 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2085 : T2I<oops, iops, itin, opc, asm, pattern> {
2086 let Inst{31-27} = 0b11111;
2087 let Inst{26-22} = 0b01010;
2088 let Inst{21-20} = op1;
2089 let Inst{15-12} = 0b1111;
2090 let Inst{7-6} = 0b10;
2091 let Inst{5-4} = op2;
2094 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2095 "clz", "\t$dst, $src", [(set rGPR:$dst, (ctlz rGPR:$src))]>;
2097 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2098 "rbit", "\t$dst, $src",
2099 [(set rGPR:$dst, (ARMrbit rGPR:$src))]>;
2101 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2102 "rev", ".w\t$dst, $src", [(set rGPR:$dst, (bswap rGPR:$src))]>;
2104 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2105 "rev16", ".w\t$dst, $src",
2107 (or (and (srl rGPR:$src, (i32 8)), 0xFF),
2108 (or (and (shl rGPR:$src, (i32 8)), 0xFF00),
2109 (or (and (srl rGPR:$src, (i32 8)), 0xFF0000),
2110 (and (shl rGPR:$src, (i32 8)), 0xFF000000)))))]>;
2112 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2113 "revsh", ".w\t$dst, $src",
2116 (or (srl (and rGPR:$src, 0xFF00), (i32 8)),
2117 (shl rGPR:$src, (i32 8))), i16))]>;
2119 def t2PKHBT : T2I<(outs rGPR:$dst), (ins rGPR:$src1, rGPR:$src2, shift_imm:$sh),
2120 IIC_iBITsi, "pkhbt", "\t$dst, $src1, $src2$sh",
2121 [(set rGPR:$dst, (or (and rGPR:$src1, 0xFFFF),
2122 (and (shl rGPR:$src2, lsl_amt:$sh),
2124 Requires<[HasT2ExtractPack, IsThumb2]> {
2125 let Inst{31-27} = 0b11101;
2126 let Inst{26-25} = 0b01;
2127 let Inst{24-20} = 0b01100;
2128 let Inst{5} = 0; // BT form
2132 // Alternate cases for PKHBT where identities eliminate some nodes.
2133 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2134 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2135 Requires<[HasT2ExtractPack, IsThumb2]>;
2136 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2137 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2138 Requires<[HasT2ExtractPack, IsThumb2]>;
2140 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2141 // will match the pattern below.
2142 def t2PKHTB : T2I<(outs rGPR:$dst), (ins rGPR:$src1, rGPR:$src2, shift_imm:$sh),
2143 IIC_iBITsi, "pkhtb", "\t$dst, $src1, $src2$sh",
2144 [(set rGPR:$dst, (or (and rGPR:$src1, 0xFFFF0000),
2145 (and (sra rGPR:$src2, asr_amt:$sh),
2147 Requires<[HasT2ExtractPack, IsThumb2]> {
2148 let Inst{31-27} = 0b11101;
2149 let Inst{26-25} = 0b01;
2150 let Inst{24-20} = 0b01100;
2151 let Inst{5} = 1; // TB form
2155 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2156 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2157 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2158 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2159 Requires<[HasT2ExtractPack, IsThumb2]>;
2160 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2161 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2162 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2163 Requires<[HasT2ExtractPack, IsThumb2]>;
2165 //===----------------------------------------------------------------------===//
2166 // Comparison Instructions...
2168 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2169 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2170 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2171 defm t2CMPz : T2I_cmp_irs<0b1101, "cmp",
2172 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2173 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
2175 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2176 // Compare-to-zero still works out, just not the relationals
2177 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2178 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2179 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2180 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2181 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2183 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2184 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2186 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2187 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2189 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2190 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2191 BinOpFrag<(ARMcmpZ (and node:$LHS, node:$RHS), 0)>>;
2192 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2193 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2194 BinOpFrag<(ARMcmpZ (xor node:$LHS, node:$RHS), 0)>>;
2196 // Conditional moves
2197 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2198 // a two-value operand where a dag node expects two operands. :(
2199 let neverHasSideEffects = 1 in {
2200 def t2MOVCCr : T2I<(outs rGPR:$dst), (ins rGPR:$false, rGPR:$true), IIC_iCMOVr,
2201 "mov", ".w\t$dst, $true",
2202 [/*(set rGPR:$dst, (ARMcmov rGPR:$false, rGPR:$true, imm:$cc, CCR:$ccr))*/]>,
2203 RegConstraint<"$false = $dst"> {
2204 let Inst{31-27} = 0b11101;
2205 let Inst{26-25} = 0b01;
2206 let Inst{24-21} = 0b0010;
2207 let Inst{20} = 0; // The S bit.
2208 let Inst{19-16} = 0b1111; // Rn
2209 let Inst{14-12} = 0b000;
2210 let Inst{7-4} = 0b0000;
2213 def t2MOVCCi : T2I<(outs rGPR:$dst), (ins rGPR:$false, t2_so_imm:$true),
2214 IIC_iCMOVi, "mov", ".w\t$dst, $true",
2215 [/*(set rGPR:$dst,(ARMcmov rGPR:$false,t2_so_imm:$true, imm:$cc, CCR:$ccr))*/]>,
2216 RegConstraint<"$false = $dst"> {
2217 let Inst{31-27} = 0b11110;
2219 let Inst{24-21} = 0b0010;
2220 let Inst{20} = 0; // The S bit.
2221 let Inst{19-16} = 0b1111; // Rn
2225 def t2MOVCCi16 : T2I<(outs rGPR:$dst), (ins rGPR:$false, i32imm:$src),
2227 "movw", "\t$dst, $src", []>,
2228 RegConstraint<"$false = $dst"> {
2229 let Inst{31-27} = 0b11110;
2231 let Inst{24-21} = 0b0010;
2232 let Inst{20} = 0; // The S bit.
2236 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2237 string opc, string asm, list<dag> pattern>
2238 : T2I<oops, iops, itin, opc, asm, pattern> {
2239 let Inst{31-27} = 0b11101;
2240 let Inst{26-25} = 0b01;
2241 let Inst{24-21} = 0b0010;
2242 let Inst{20} = 0; // The S bit.
2243 let Inst{19-16} = 0b1111; // Rn
2244 let Inst{5-4} = opcod; // Shift type.
2246 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$dst),
2247 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2248 IIC_iCMOVsi, "lsl", ".w\t$dst, $true, $rhs", []>,
2249 RegConstraint<"$false = $dst">;
2250 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$dst),
2251 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2252 IIC_iCMOVsi, "lsr", ".w\t$dst, $true, $rhs", []>,
2253 RegConstraint<"$false = $dst">;
2254 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$dst),
2255 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2256 IIC_iCMOVsi, "asr", ".w\t$dst, $true, $rhs", []>,
2257 RegConstraint<"$false = $dst">;
2258 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$dst),
2259 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2260 IIC_iCMOVsi, "ror", ".w\t$dst, $true, $rhs", []>,
2261 RegConstraint<"$false = $dst">;
2262 } // neverHasSideEffects
2264 //===----------------------------------------------------------------------===//
2265 // Atomic operations intrinsics
2268 // memory barriers protect the atomic sequences
2269 let hasSideEffects = 1 in {
2270 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2271 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2272 Requires<[IsThumb, HasDB]> {
2274 let Inst{31-4} = 0xf3bf8f5;
2275 let Inst{3-0} = opt;
2279 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2281 [/* For disassembly only; pattern left blank */]>,
2282 Requires<[IsThumb, HasDB]> {
2284 let Inst{31-4} = 0xf3bf8f4;
2285 let Inst{3-0} = opt;
2288 // ISB has only full system option -- for disassembly only
2289 def t2ISB : T2I<(outs), (ins), NoItinerary, "isb", "",
2290 [/* For disassembly only; pattern left blank */]>,
2291 Requires<[IsThumb2, HasV7]> {
2292 let Inst{31-4} = 0xf3bf8f6;
2293 let Inst{3-0} = 0b1111;
2296 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2297 InstrItinClass itin, string opc, string asm, string cstr,
2298 list<dag> pattern, bits<4> rt2 = 0b1111>
2299 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2300 let Inst{31-27} = 0b11101;
2301 let Inst{26-20} = 0b0001101;
2302 let Inst{11-8} = rt2;
2303 let Inst{7-6} = 0b01;
2304 let Inst{5-4} = opcod;
2305 let Inst{3-0} = 0b1111;
2307 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2308 InstrItinClass itin, string opc, string asm, string cstr,
2309 list<dag> pattern, bits<4> rt2 = 0b1111>
2310 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2311 let Inst{31-27} = 0b11101;
2312 let Inst{26-20} = 0b0001100;
2313 let Inst{11-8} = rt2;
2314 let Inst{7-6} = 0b01;
2315 let Inst{5-4} = opcod;
2318 let mayLoad = 1 in {
2319 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2320 Size4Bytes, NoItinerary, "ldrexb", "\t$dest, [$ptr]",
2322 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2323 Size4Bytes, NoItinerary, "ldrexh", "\t$dest, [$ptr]",
2325 def t2LDREX : Thumb2I<(outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2326 Size4Bytes, NoItinerary,
2327 "ldrex", "\t$dest, [$ptr]", "",
2329 let Inst{31-27} = 0b11101;
2330 let Inst{26-20} = 0b0000101;
2331 let Inst{11-8} = 0b1111;
2332 let Inst{7-0} = 0b00000000; // imm8 = 0
2334 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$dest, rGPR:$dest2), (ins rGPR:$ptr),
2335 AddrModeNone, Size4Bytes, NoItinerary,
2336 "ldrexd", "\t$dest, $dest2, [$ptr]", "",
2340 let mayStore = 1, Constraints = "@earlyclobber $success" in {
2341 def t2STREXB : T2I_strex<0b00, (outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2342 AddrModeNone, Size4Bytes, NoItinerary,
2343 "strexb", "\t$success, $src, [$ptr]", "", []>;
2344 def t2STREXH : T2I_strex<0b01, (outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2345 AddrModeNone, Size4Bytes, NoItinerary,
2346 "strexh", "\t$success, $src, [$ptr]", "", []>;
2347 def t2STREX : Thumb2I<(outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2348 AddrModeNone, Size4Bytes, NoItinerary,
2349 "strex", "\t$success, $src, [$ptr]", "",
2351 let Inst{31-27} = 0b11101;
2352 let Inst{26-20} = 0b0000100;
2353 let Inst{7-0} = 0b00000000; // imm8 = 0
2355 def t2STREXD : T2I_strex<0b11, (outs rGPR:$success),
2356 (ins rGPR:$src, rGPR:$src2, rGPR:$ptr),
2357 AddrModeNone, Size4Bytes, NoItinerary,
2358 "strexd", "\t$success, $src, $src2, [$ptr]", "", [],
2362 // Clear-Exclusive is for disassembly only.
2363 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2364 [/* For disassembly only; pattern left blank */]>,
2365 Requires<[IsARM, HasV7]> {
2366 let Inst{31-20} = 0xf3b;
2367 let Inst{15-14} = 0b10;
2369 let Inst{7-4} = 0b0010;
2372 //===----------------------------------------------------------------------===//
2376 // __aeabi_read_tp preserves the registers r1-r3.
2378 Defs = [R0, R12, LR, CPSR] in {
2379 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2380 "bl\t__aeabi_read_tp",
2381 [(set R0, ARMthread_pointer)]> {
2382 let Inst{31-27} = 0b11110;
2383 let Inst{15-14} = 0b11;
2388 //===----------------------------------------------------------------------===//
2389 // SJLJ Exception handling intrinsics
2390 // eh_sjlj_setjmp() is an instruction sequence to store the return
2391 // address and save #0 in R0 for the non-longjmp case.
2392 // Since by its nature we may be coming from some other function to get
2393 // here, and we're using the stack frame for the containing function to
2394 // save/restore registers, we can't keep anything live in regs across
2395 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2396 // when we get here from a longjmp(). We force everthing out of registers
2397 // except for our own input by listing the relevant registers in Defs. By
2398 // doing so, we also cause the prologue/epilogue code to actively preserve
2399 // all of the callee-saved resgisters, which is exactly what we want.
2400 // $val is a scratch register for our use.
2402 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2403 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2404 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2405 D31 ], hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2406 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2407 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2408 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2409 Requires<[IsThumb2, HasVFP2]>;
2413 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2414 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2415 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2416 AddrModeNone, SizeSpecial, NoItinerary, "", "",
2417 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2418 Requires<[IsThumb2, NoVFP]>;
2422 //===----------------------------------------------------------------------===//
2423 // Control-Flow Instructions
2426 // FIXME: remove when we have a way to marking a MI with these properties.
2427 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2429 // FIXME: Should pc be an implicit operand like PICADD, etc?
2430 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2431 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2432 def t2LDM_RET: T2XIt<(outs GPR:$wb), (ins GPR:$Rn, ldstm_mode:$amode, pred:$p,
2433 reglist:$dsts, variable_ops),
2435 "ldm${amode}${p}.w\t$Rn!, $dsts",
2437 let Inst{31-27} = 0b11101;
2438 let Inst{26-25} = 0b00;
2439 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
2441 let Inst{21} = 1; // The W bit.
2442 let Inst{20} = 1; // Load
2445 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2446 let isPredicable = 1 in
2447 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2449 [(br bb:$target)]> {
2450 let Inst{31-27} = 0b11110;
2451 let Inst{15-14} = 0b10;
2455 let isNotDuplicable = 1, isIndirectBranch = 1,
2456 isCodeGenOnly = 1 in { // $id doesn't exist in asmstring, should be lowered.
2459 (ins GPR:$target, GPR:$index, jt2block_operand:$jt, i32imm:$id),
2460 IIC_Br, "mov\tpc, $target$jt",
2461 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]> {
2462 let Inst{31-27} = 0b11101;
2463 let Inst{26-20} = 0b0100100;
2464 let Inst{19-16} = 0b1111;
2465 let Inst{14-12} = 0b000;
2466 let Inst{11-8} = 0b1111; // Rd = pc
2467 let Inst{7-4} = 0b0000;
2470 // FIXME: Add a non-pc based case that can be predicated.
2471 let isCodeGenOnly = 1 in // $id doesn't exist in asm string, should be lowered.
2474 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2475 IIC_Br, "tbb\t$index$jt", []> {
2476 let Inst{31-27} = 0b11101;
2477 let Inst{26-20} = 0b0001101;
2478 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2479 let Inst{15-8} = 0b11110000;
2480 let Inst{7-4} = 0b0000; // B form
2483 let isCodeGenOnly = 1 in // $id doesn't exist in asm string, should be lowered.
2486 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2487 IIC_Br, "tbh\t$index$jt", []> {
2488 let Inst{31-27} = 0b11101;
2489 let Inst{26-20} = 0b0001101;
2490 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2491 let Inst{15-8} = 0b11110000;
2492 let Inst{7-4} = 0b0001; // H form
2495 // Generic versions of the above two instructions, for disassembly only
2497 def t2TBBgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2498 "tbb", "\t[$a, $b]", []>{
2499 let Inst{31-27} = 0b11101;
2500 let Inst{26-20} = 0b0001101;
2501 let Inst{15-8} = 0b11110000;
2502 let Inst{7-4} = 0b0000; // B form
2505 def t2TBHgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2506 "tbh", "\t[$a, $b, lsl #1]", []> {
2507 let Inst{31-27} = 0b11101;
2508 let Inst{26-20} = 0b0001101;
2509 let Inst{15-8} = 0b11110000;
2510 let Inst{7-4} = 0b0001; // H form
2512 } // isNotDuplicable, isIndirectBranch
2514 } // isBranch, isTerminator, isBarrier
2516 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
2517 // a two-value operand where a dag node expects two operands. :(
2518 let isBranch = 1, isTerminator = 1 in
2519 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
2521 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
2522 let Inst{31-27} = 0b11110;
2523 let Inst{15-14} = 0b10;
2529 let Defs = [ITSTATE] in
2530 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
2531 AddrModeNone, Size2Bytes, IIC_iALUx,
2532 "it$mask\t$cc", "", []> {
2533 // 16-bit instruction.
2534 let Inst{31-16} = 0x0000;
2535 let Inst{15-8} = 0b10111111;
2538 // Branch and Exchange Jazelle -- for disassembly only
2540 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
2541 [/* For disassembly only; pattern left blank */]> {
2542 let Inst{31-27} = 0b11110;
2544 let Inst{25-20} = 0b111100;
2545 let Inst{15-14} = 0b10;
2549 // Change Processor State is a system instruction -- for disassembly only.
2550 // The singleton $opt operand contains the following information:
2551 // opt{4-0} = mode from Inst{4-0}
2552 // opt{5} = changemode from Inst{17}
2553 // opt{8-6} = AIF from Inst{8-6}
2554 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
2555 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
2556 [/* For disassembly only; pattern left blank */]> {
2557 let Inst{31-27} = 0b11110;
2559 let Inst{25-20} = 0b111010;
2560 let Inst{15-14} = 0b10;
2564 // A6.3.4 Branches and miscellaneous control
2565 // Table A6-14 Change Processor State, and hint instructions
2566 // Helper class for disassembly only.
2567 class T2I_hint<bits<8> op7_0, string opc, string asm>
2568 : T2I<(outs), (ins), NoItinerary, opc, asm,
2569 [/* For disassembly only; pattern left blank */]> {
2570 let Inst{31-20} = 0xf3a;
2571 let Inst{15-14} = 0b10;
2573 let Inst{10-8} = 0b000;
2574 let Inst{7-0} = op7_0;
2577 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
2578 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
2579 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
2580 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
2581 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
2583 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
2584 [/* For disassembly only; pattern left blank */]> {
2585 let Inst{31-20} = 0xf3a;
2586 let Inst{15-14} = 0b10;
2588 let Inst{10-8} = 0b000;
2589 let Inst{7-4} = 0b1111;
2592 // Secure Monitor Call is a system instruction -- for disassembly only
2593 // Option = Inst{19-16}
2594 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
2595 [/* For disassembly only; pattern left blank */]> {
2596 let Inst{31-27} = 0b11110;
2597 let Inst{26-20} = 0b1111111;
2598 let Inst{15-12} = 0b1000;
2601 // Store Return State is a system instruction -- for disassembly only
2602 def t2SRSDBW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
2603 [/* For disassembly only; pattern left blank */]> {
2604 let Inst{31-27} = 0b11101;
2605 let Inst{26-20} = 0b0000010; // W = 1
2608 def t2SRSDB : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
2609 [/* For disassembly only; pattern left blank */]> {
2610 let Inst{31-27} = 0b11101;
2611 let Inst{26-20} = 0b0000000; // W = 0
2614 def t2SRSIAW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
2615 [/* For disassembly only; pattern left blank */]> {
2616 let Inst{31-27} = 0b11101;
2617 let Inst{26-20} = 0b0011010; // W = 1
2620 def t2SRSIA : T2I<(outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
2621 [/* For disassembly only; pattern left blank */]> {
2622 let Inst{31-27} = 0b11101;
2623 let Inst{26-20} = 0b0011000; // W = 0
2626 // Return From Exception is a system instruction -- for disassembly only
2627 def t2RFEDBW : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfedb", "\t$base!",
2628 [/* For disassembly only; pattern left blank */]> {
2629 let Inst{31-27} = 0b11101;
2630 let Inst{26-20} = 0b0000011; // W = 1
2633 def t2RFEDB : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeab", "\t$base",
2634 [/* For disassembly only; pattern left blank */]> {
2635 let Inst{31-27} = 0b11101;
2636 let Inst{26-20} = 0b0000001; // W = 0
2639 def t2RFEIAW : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeia", "\t$base!",
2640 [/* For disassembly only; pattern left blank */]> {
2641 let Inst{31-27} = 0b11101;
2642 let Inst{26-20} = 0b0011011; // W = 1
2645 def t2RFEIA : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeia", "\t$base",
2646 [/* For disassembly only; pattern left blank */]> {
2647 let Inst{31-27} = 0b11101;
2648 let Inst{26-20} = 0b0011001; // W = 0
2651 //===----------------------------------------------------------------------===//
2652 // Non-Instruction Patterns
2655 // Two piece so_imms.
2656 def : T2Pat<(or rGPR:$LHS, t2_so_imm2part:$RHS),
2657 (t2ORRri (t2ORRri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2658 (t2_so_imm2part_2 imm:$RHS))>;
2659 def : T2Pat<(xor rGPR:$LHS, t2_so_imm2part:$RHS),
2660 (t2EORri (t2EORri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2661 (t2_so_imm2part_2 imm:$RHS))>;
2662 def : T2Pat<(add rGPR:$LHS, t2_so_imm2part:$RHS),
2663 (t2ADDri (t2ADDri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2664 (t2_so_imm2part_2 imm:$RHS))>;
2665 def : T2Pat<(add rGPR:$LHS, t2_so_neg_imm2part:$RHS),
2666 (t2SUBri (t2SUBri rGPR:$LHS, (t2_so_neg_imm2part_1 imm:$RHS)),
2667 (t2_so_neg_imm2part_2 imm:$RHS))>;
2669 // 32-bit immediate using movw + movt.
2670 // This is a single pseudo instruction to make it re-materializable.
2671 // FIXME: Remove this when we can do generalized remat.
2672 let isReMaterializable = 1 in
2673 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
2674 "", [(set rGPR:$dst, (i32 imm:$src))]>,
2675 Requires<[IsThumb, HasV6T2]>;
2677 // ConstantPool, GlobalAddress, and JumpTable
2678 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
2679 Requires<[IsThumb2, DontUseMovt]>;
2680 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
2681 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
2682 Requires<[IsThumb2, UseMovt]>;
2684 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
2685 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
2687 // Pseudo instruction that combines ldr from constpool and add pc. This should
2688 // be expanded into two instructions late to allow if-conversion and
2690 let canFoldAsLoad = 1, isReMaterializable = 1 in
2691 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
2693 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
2695 Requires<[IsThumb2]>;
2697 //===----------------------------------------------------------------------===//
2698 // Move between special register and ARM core register -- for disassembly only
2702 def t2MRS : T2I<(outs rGPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, cpsr",
2703 [/* For disassembly only; pattern left blank */]> {
2704 let Inst{31-27} = 0b11110;
2706 let Inst{25-21} = 0b11111;
2707 let Inst{20} = 0; // The R bit.
2708 let Inst{15-14} = 0b10;
2713 def t2MRSsys : T2I<(outs rGPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, spsr",
2714 [/* For disassembly only; pattern left blank */]> {
2715 let Inst{31-27} = 0b11110;
2717 let Inst{25-21} = 0b11111;
2718 let Inst{20} = 1; // The R bit.
2719 let Inst{15-14} = 0b10;
2724 def t2MSR : T2I<(outs), (ins rGPR:$src, msr_mask:$mask), NoItinerary, "msr",
2725 "\tcpsr$mask, $src",
2726 [/* For disassembly only; pattern left blank */]> {
2727 let Inst{31-27} = 0b11110;
2729 let Inst{25-21} = 0b11100;
2730 let Inst{20} = 0; // The R bit.
2731 let Inst{15-14} = 0b10;
2736 def t2MSRsys : T2I<(outs), (ins rGPR:$src, msr_mask:$mask), NoItinerary, "msr",
2737 "\tspsr$mask, $src",
2738 [/* For disassembly only; pattern left blank */]> {
2739 let Inst{31-27} = 0b11110;
2741 let Inst{25-21} = 0b11100;
2742 let Inst{20} = 1; // The R bit.
2743 let Inst{15-14} = 0b10;