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 = "printT2AddrModeImm12Operand";
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:$offsimm);
166 //===----------------------------------------------------------------------===//
167 // Multiclass helpers...
170 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
171 /// unary operation that produces a value. These are predicable and can be
172 /// changed to modify CPSR.
173 multiclass T2I_un_irs<bits<4> opcod, string opc, PatFrag opnode,
174 bit Cheap = 0, bit ReMat = 0> {
176 def i : T2sI<(outs rGPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
178 [(set rGPR:$dst, (opnode t2_so_imm:$src))]> {
179 let isAsCheapAsAMove = Cheap;
180 let isReMaterializable = ReMat;
181 let Inst{31-27} = 0b11110;
183 let Inst{24-21} = opcod;
184 let Inst{20} = ?; // The S bit.
185 let Inst{19-16} = 0b1111; // Rn
189 def r : T2sI<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVr,
190 opc, ".w\t$dst, $src",
191 [(set rGPR:$dst, (opnode rGPR:$src))]> {
192 let Inst{31-27} = 0b11101;
193 let Inst{26-25} = 0b01;
194 let Inst{24-21} = opcod;
195 let Inst{20} = ?; // The S bit.
196 let Inst{19-16} = 0b1111; // Rn
197 let Inst{14-12} = 0b000; // imm3
198 let Inst{7-6} = 0b00; // imm2
199 let Inst{5-4} = 0b00; // type
202 def s : T2sI<(outs rGPR:$dst), (ins t2_so_reg:$src), IIC_iMOVsi,
203 opc, ".w\t$dst, $src",
204 [(set rGPR:$dst, (opnode t2_so_reg:$src))]> {
205 let Inst{31-27} = 0b11101;
206 let Inst{26-25} = 0b01;
207 let Inst{24-21} = opcod;
208 let Inst{20} = ?; // The S bit.
209 let Inst{19-16} = 0b1111; // Rn
213 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
214 /// binary operation that produces a value. These are predicable and can be
215 /// changed to modify CPSR.
216 multiclass T2I_bin_irs<bits<4> opcod, string opc,
217 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
218 PatFrag opnode, bit Commutable = 0, string wide = ""> {
220 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), iii,
221 opc, "\t$dst, $lhs, $rhs",
222 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]> {
223 let Inst{31-27} = 0b11110;
225 let Inst{24-21} = opcod;
226 let Inst{20} = ?; // The S bit.
230 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), iir,
231 opc, !strconcat(wide, "\t$dst, $lhs, $rhs"),
232 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]> {
233 let isCommutable = Commutable;
234 let Inst{31-27} = 0b11101;
235 let Inst{26-25} = 0b01;
236 let Inst{24-21} = opcod;
237 let Inst{20} = ?; // The S bit.
238 let Inst{14-12} = 0b000; // imm3
239 let Inst{7-6} = 0b00; // imm2
240 let Inst{5-4} = 0b00; // type
243 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), iis,
244 opc, !strconcat(wide, "\t$dst, $lhs, $rhs"),
245 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]> {
246 let Inst{31-27} = 0b11101;
247 let Inst{26-25} = 0b01;
248 let Inst{24-21} = opcod;
249 let Inst{20} = ?; // The S bit.
253 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
254 // the ".w" prefix to indicate that they are wide.
255 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
256 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
257 PatFrag opnode, bit Commutable = 0> :
258 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w">;
260 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
261 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
262 /// it is equivalent to the T2I_bin_irs counterpart.
263 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
265 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_imm:$lhs), IIC_iALUi,
266 opc, ".w\t$dst, $rhs, $lhs",
267 [(set rGPR:$dst, (opnode t2_so_imm:$lhs, rGPR:$rhs))]> {
268 let Inst{31-27} = 0b11110;
270 let Inst{24-21} = opcod;
271 let Inst{20} = ?; // The S bit.
275 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$rhs, rGPR:$lhs), IIC_iALUr,
276 opc, "\t$dst, $rhs, $lhs",
277 [/* For disassembly only; pattern left blank */]> {
278 let Inst{31-27} = 0b11101;
279 let Inst{26-25} = 0b01;
280 let Inst{24-21} = opcod;
281 let Inst{20} = ?; // The S bit.
282 let Inst{14-12} = 0b000; // imm3
283 let Inst{7-6} = 0b00; // imm2
284 let Inst{5-4} = 0b00; // type
287 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_reg:$lhs), IIC_iALUsi,
288 opc, "\t$dst, $rhs, $lhs",
289 [(set rGPR:$dst, (opnode t2_so_reg:$lhs, rGPR:$rhs))]> {
290 let Inst{31-27} = 0b11101;
291 let Inst{26-25} = 0b01;
292 let Inst{24-21} = opcod;
293 let Inst{20} = ?; // The S bit.
297 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
298 /// instruction modifies the CPSR register.
299 let Defs = [CPSR] in {
300 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
301 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
302 PatFrag opnode, bit Commutable = 0> {
304 def ri : T2I<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), iii,
305 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
306 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
307 let Inst{31-27} = 0b11110;
309 let Inst{24-21} = opcod;
310 let Inst{20} = 1; // The S bit.
314 def rr : T2I<(outs rGPR:$dst), (ins GPR:$lhs, rGPR:$rhs), iir,
315 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
316 [(set rGPR:$dst, (opnode GPR:$lhs, rGPR:$rhs))]> {
317 let isCommutable = Commutable;
318 let Inst{31-27} = 0b11101;
319 let Inst{26-25} = 0b01;
320 let Inst{24-21} = opcod;
321 let Inst{20} = 1; // The S bit.
322 let Inst{14-12} = 0b000; // imm3
323 let Inst{7-6} = 0b00; // imm2
324 let Inst{5-4} = 0b00; // type
327 def rs : T2I<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), iis,
328 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
329 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
330 let Inst{31-27} = 0b11101;
331 let Inst{26-25} = 0b01;
332 let Inst{24-21} = opcod;
333 let Inst{20} = 1; // The S bit.
338 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
339 /// patterns for a binary operation that produces a value.
340 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
341 bit Commutable = 0> {
343 // The register-immediate version is re-materializable. This is useful
344 // in particular for taking the address of a local.
345 let isReMaterializable = 1 in {
346 def ri : T2sI<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
347 opc, ".w\t$dst, $lhs, $rhs",
348 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
349 let Inst{31-27} = 0b11110;
352 let Inst{23-21} = op23_21;
353 let Inst{20} = 0; // The S bit.
358 def ri12 : T2I<(outs rGPR:$dst), (ins GPR:$lhs, imm0_4095:$rhs), IIC_iALUi,
359 !strconcat(opc, "w"), "\t$dst, $lhs, $rhs",
360 [(set rGPR:$dst, (opnode GPR:$lhs, imm0_4095:$rhs))]> {
361 let Inst{31-27} = 0b11110;
364 let Inst{23-21} = op23_21;
365 let Inst{20} = 0; // The S bit.
369 def rr : T2sI<(outs rGPR:$dst), (ins GPR:$lhs, rGPR:$rhs), IIC_iALUr,
370 opc, ".w\t$dst, $lhs, $rhs",
371 [(set rGPR:$dst, (opnode GPR:$lhs, rGPR:$rhs))]> {
372 let isCommutable = Commutable;
373 let Inst{31-27} = 0b11101;
374 let Inst{26-25} = 0b01;
376 let Inst{23-21} = op23_21;
377 let Inst{20} = 0; // The S bit.
378 let Inst{14-12} = 0b000; // imm3
379 let Inst{7-6} = 0b00; // imm2
380 let Inst{5-4} = 0b00; // type
383 def rs : T2sI<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
384 opc, ".w\t$dst, $lhs, $rhs",
385 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
386 let Inst{31-27} = 0b11101;
387 let Inst{26-25} = 0b01;
389 let Inst{23-21} = op23_21;
390 let Inst{20} = 0; // The S bit.
394 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
395 /// for a binary operation that produces a value and use the carry
396 /// bit. It's not predicable.
397 let Uses = [CPSR] in {
398 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
399 bit Commutable = 0> {
401 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
402 opc, "\t$dst, $lhs, $rhs",
403 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]>,
404 Requires<[IsThumb2]> {
405 let Inst{31-27} = 0b11110;
407 let Inst{24-21} = opcod;
408 let Inst{20} = 0; // The S bit.
412 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iALUr,
413 opc, ".w\t$dst, $lhs, $rhs",
414 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]>,
415 Requires<[IsThumb2]> {
416 let isCommutable = Commutable;
417 let Inst{31-27} = 0b11101;
418 let Inst{26-25} = 0b01;
419 let Inst{24-21} = opcod;
420 let Inst{20} = 0; // The S bit.
421 let Inst{14-12} = 0b000; // imm3
422 let Inst{7-6} = 0b00; // imm2
423 let Inst{5-4} = 0b00; // type
426 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
427 opc, ".w\t$dst, $lhs, $rhs",
428 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]>,
429 Requires<[IsThumb2]> {
430 let Inst{31-27} = 0b11101;
431 let Inst{26-25} = 0b01;
432 let Inst{24-21} = opcod;
433 let Inst{20} = 0; // The S bit.
437 // Carry setting variants
438 let Defs = [CPSR] in {
439 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
440 bit Commutable = 0> {
442 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
443 opc, "\t$dst, $lhs, $rhs",
444 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]>,
445 Requires<[IsThumb2]> {
446 let Inst{31-27} = 0b11110;
448 let Inst{24-21} = opcod;
449 let Inst{20} = 1; // The S bit.
453 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iALUr,
454 opc, ".w\t$dst, $lhs, $rhs",
455 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]>,
456 Requires<[IsThumb2]> {
457 let isCommutable = Commutable;
458 let Inst{31-27} = 0b11101;
459 let Inst{26-25} = 0b01;
460 let Inst{24-21} = opcod;
461 let Inst{20} = 1; // The S bit.
462 let Inst{14-12} = 0b000; // imm3
463 let Inst{7-6} = 0b00; // imm2
464 let Inst{5-4} = 0b00; // type
467 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
468 opc, ".w\t$dst, $lhs, $rhs",
469 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]>,
470 Requires<[IsThumb2]> {
471 let Inst{31-27} = 0b11101;
472 let Inst{26-25} = 0b01;
473 let Inst{24-21} = opcod;
474 let Inst{20} = 1; // The S bit.
480 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
481 /// version is not needed since this is only for codegen.
482 let Defs = [CPSR] in {
483 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
485 def ri : T2I<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_imm:$lhs), IIC_iALUi,
486 !strconcat(opc, "s"), ".w\t$dst, $rhs, $lhs",
487 [(set rGPR:$dst, (opnode t2_so_imm:$lhs, rGPR:$rhs))]> {
488 let Inst{31-27} = 0b11110;
490 let Inst{24-21} = opcod;
491 let Inst{20} = 1; // The S bit.
495 def rs : T2I<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_reg:$lhs), IIC_iALUsi,
496 !strconcat(opc, "s"), "\t$dst, $rhs, $lhs",
497 [(set rGPR:$dst, (opnode t2_so_reg:$lhs, rGPR:$rhs))]> {
498 let Inst{31-27} = 0b11101;
499 let Inst{26-25} = 0b01;
500 let Inst{24-21} = opcod;
501 let Inst{20} = 1; // The S bit.
506 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
507 // rotate operation that produces a value.
508 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
510 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
511 opc, ".w\t$dst, $lhs, $rhs",
512 [(set rGPR:$dst, (opnode rGPR:$lhs, imm1_31:$rhs))]> {
513 let Inst{31-27} = 0b11101;
514 let Inst{26-21} = 0b010010;
515 let Inst{19-16} = 0b1111; // Rn
516 let Inst{5-4} = opcod;
519 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iMOVsr,
520 opc, ".w\t$dst, $lhs, $rhs",
521 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]> {
522 let Inst{31-27} = 0b11111;
523 let Inst{26-23} = 0b0100;
524 let Inst{22-21} = opcod;
525 let Inst{15-12} = 0b1111;
526 let Inst{7-4} = 0b0000;
530 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
531 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
532 /// a explicit result, only implicitly set CPSR.
533 let isCompare = 1, Defs = [CPSR] in {
534 multiclass T2I_cmp_irs<bits<4> opcod, string opc, PatFrag opnode> {
536 def ri : T2I<(outs), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iCMPi,
537 opc, ".w\t$lhs, $rhs",
538 [(opnode GPR:$lhs, t2_so_imm:$rhs)]> {
539 let Inst{31-27} = 0b11110;
541 let Inst{24-21} = opcod;
542 let Inst{20} = 1; // The S bit.
544 let Inst{11-8} = 0b1111; // Rd
547 def rr : T2I<(outs), (ins GPR:$lhs, rGPR:$rhs), IIC_iCMPr,
548 opc, ".w\t$lhs, $rhs",
549 [(opnode GPR:$lhs, rGPR:$rhs)]> {
550 let Inst{31-27} = 0b11101;
551 let Inst{26-25} = 0b01;
552 let Inst{24-21} = opcod;
553 let Inst{20} = 1; // The S bit.
554 let Inst{14-12} = 0b000; // imm3
555 let Inst{11-8} = 0b1111; // Rd
556 let Inst{7-6} = 0b00; // imm2
557 let Inst{5-4} = 0b00; // type
560 def rs : T2I<(outs), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iCMPsi,
561 opc, ".w\t$lhs, $rhs",
562 [(opnode GPR:$lhs, t2_so_reg:$rhs)]> {
563 let Inst{31-27} = 0b11101;
564 let Inst{26-25} = 0b01;
565 let Inst{24-21} = opcod;
566 let Inst{20} = 1; // The S bit.
567 let Inst{11-8} = 0b1111; // Rd
572 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
573 multiclass T2I_ld<bit signed, bits<2> opcod, string opc, PatFrag opnode> {
574 def i12 : T2Ii12<(outs GPR:$dst), (ins t2addrmode_imm12:$addr), IIC_iLoadi,
575 opc, ".w\t$dst, $addr",
576 [(set GPR:$dst, (opnode t2addrmode_imm12:$addr))]> {
577 let Inst{31-27} = 0b11111;
578 let Inst{26-25} = 0b00;
579 let Inst{24} = signed;
581 let Inst{22-21} = opcod;
582 let Inst{20} = 1; // load
584 def i8 : T2Ii8 <(outs GPR:$dst), (ins t2addrmode_imm8:$addr), IIC_iLoadi,
585 opc, "\t$dst, $addr",
586 [(set GPR:$dst, (opnode t2addrmode_imm8:$addr))]> {
587 let Inst{31-27} = 0b11111;
588 let Inst{26-25} = 0b00;
589 let Inst{24} = signed;
591 let Inst{22-21} = opcod;
592 let Inst{20} = 1; // load
594 // Offset: index==TRUE, wback==FALSE
595 let Inst{10} = 1; // The P bit.
596 let Inst{8} = 0; // The W bit.
598 def s : T2Iso <(outs GPR:$dst), (ins t2addrmode_so_reg:$addr), IIC_iLoadr,
599 opc, ".w\t$dst, $addr",
600 [(set GPR:$dst, (opnode t2addrmode_so_reg:$addr))]> {
601 let Inst{31-27} = 0b11111;
602 let Inst{26-25} = 0b00;
603 let Inst{24} = signed;
605 let Inst{22-21} = opcod;
606 let Inst{20} = 1; // load
607 let Inst{11-6} = 0b000000;
609 def pci : T2Ipc <(outs GPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
610 opc, ".w\t$dst, $addr",
611 [(set GPR:$dst, (opnode (ARMWrapper tconstpool:$addr)))]> {
612 let isReMaterializable = 1;
613 let Inst{31-27} = 0b11111;
614 let Inst{26-25} = 0b00;
615 let Inst{24} = signed;
616 let Inst{23} = ?; // add = (U == '1')
617 let Inst{22-21} = opcod;
618 let Inst{20} = 1; // load
619 let Inst{19-16} = 0b1111; // Rn
623 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
624 multiclass T2I_st<bits<2> opcod, string opc, PatFrag opnode> {
625 def i12 : T2Ii12<(outs), (ins GPR:$src, t2addrmode_imm12:$addr), IIC_iStorei,
626 opc, ".w\t$src, $addr",
627 [(opnode GPR:$src, t2addrmode_imm12:$addr)]> {
628 let Inst{31-27} = 0b11111;
629 let Inst{26-23} = 0b0001;
630 let Inst{22-21} = opcod;
631 let Inst{20} = 0; // !load
633 def i8 : T2Ii8 <(outs), (ins GPR:$src, t2addrmode_imm8:$addr), IIC_iStorei,
634 opc, "\t$src, $addr",
635 [(opnode GPR:$src, t2addrmode_imm8:$addr)]> {
636 let Inst{31-27} = 0b11111;
637 let Inst{26-23} = 0b0000;
638 let Inst{22-21} = opcod;
639 let Inst{20} = 0; // !load
641 // Offset: index==TRUE, wback==FALSE
642 let Inst{10} = 1; // The P bit.
643 let Inst{8} = 0; // The W bit.
645 def s : T2Iso <(outs), (ins GPR:$src, t2addrmode_so_reg:$addr), IIC_iStorer,
646 opc, ".w\t$src, $addr",
647 [(opnode GPR:$src, t2addrmode_so_reg:$addr)]> {
648 let Inst{31-27} = 0b11111;
649 let Inst{26-23} = 0b0000;
650 let Inst{22-21} = opcod;
651 let Inst{20} = 0; // !load
652 let Inst{11-6} = 0b000000;
656 /// T2I_unary_rrot - A unary operation with two forms: one whose operand is a
657 /// register and one whose operand is a register rotated by 8/16/24.
658 multiclass T2I_unary_rrot<bits<3> opcod, string opc, PatFrag opnode> {
659 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
660 opc, ".w\t$dst, $src",
661 [(set rGPR:$dst, (opnode rGPR:$src))]> {
662 let Inst{31-27} = 0b11111;
663 let Inst{26-23} = 0b0100;
664 let Inst{22-20} = opcod;
665 let Inst{19-16} = 0b1111; // Rn
666 let Inst{15-12} = 0b1111;
668 let Inst{5-4} = 0b00; // rotate
670 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iUNAsi,
671 opc, ".w\t$dst, $src, ror $rot",
672 [(set rGPR:$dst, (opnode (rotr rGPR:$src, rot_imm:$rot)))]> {
673 let Inst{31-27} = 0b11111;
674 let Inst{26-23} = 0b0100;
675 let Inst{22-20} = opcod;
676 let Inst{19-16} = 0b1111; // Rn
677 let Inst{15-12} = 0b1111;
679 let Inst{5-4} = {?,?}; // rotate
683 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
684 multiclass T2I_unary_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
685 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
687 [(set rGPR:$dst, (opnode rGPR:$src))]>,
688 Requires<[HasT2ExtractPack]> {
689 let Inst{31-27} = 0b11111;
690 let Inst{26-23} = 0b0100;
691 let Inst{22-20} = opcod;
692 let Inst{19-16} = 0b1111; // Rn
693 let Inst{15-12} = 0b1111;
695 let Inst{5-4} = 0b00; // rotate
697 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iUNAsi,
698 opc, "\t$dst, $src, ror $rot",
699 [(set rGPR:$dst, (opnode (rotr rGPR:$src, rot_imm:$rot)))]>,
700 Requires<[HasT2ExtractPack]> {
701 let Inst{31-27} = 0b11111;
702 let Inst{26-23} = 0b0100;
703 let Inst{22-20} = opcod;
704 let Inst{19-16} = 0b1111; // Rn
705 let Inst{15-12} = 0b1111;
707 let Inst{5-4} = {?,?}; // rotate
711 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
713 multiclass T2I_unary_rrot_sxtb16<bits<3> opcod, string opc> {
714 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
715 opc, "\t$dst, $src", []> {
716 let Inst{31-27} = 0b11111;
717 let Inst{26-23} = 0b0100;
718 let Inst{22-20} = opcod;
719 let Inst{19-16} = 0b1111; // Rn
720 let Inst{15-12} = 0b1111;
722 let Inst{5-4} = 0b00; // rotate
724 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iUNAsi,
725 opc, "\t$dst, $src, ror $rot", []> {
726 let Inst{31-27} = 0b11111;
727 let Inst{26-23} = 0b0100;
728 let Inst{22-20} = opcod;
729 let Inst{19-16} = 0b1111; // Rn
730 let Inst{15-12} = 0b1111;
732 let Inst{5-4} = {?,?}; // rotate
736 /// T2I_bin_rrot - A binary operation with two forms: one whose operand is a
737 /// register and one whose operand is a register rotated by 8/16/24.
738 multiclass T2I_bin_rrot<bits<3> opcod, string opc, PatFrag opnode> {
739 def rr : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS), IIC_iALUr,
740 opc, "\t$dst, $LHS, $RHS",
741 [(set rGPR:$dst, (opnode rGPR:$LHS, rGPR:$RHS))]>,
742 Requires<[HasT2ExtractPack]> {
743 let Inst{31-27} = 0b11111;
744 let Inst{26-23} = 0b0100;
745 let Inst{22-20} = opcod;
746 let Inst{15-12} = 0b1111;
748 let Inst{5-4} = 0b00; // rotate
750 def rr_rot : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS, i32imm:$rot),
751 IIC_iALUsr, opc, "\t$dst, $LHS, $RHS, ror $rot",
752 [(set rGPR:$dst, (opnode rGPR:$LHS,
753 (rotr rGPR:$RHS, rot_imm:$rot)))]>,
754 Requires<[HasT2ExtractPack]> {
755 let Inst{31-27} = 0b11111;
756 let Inst{26-23} = 0b0100;
757 let Inst{22-20} = opcod;
758 let Inst{15-12} = 0b1111;
760 let Inst{5-4} = {?,?}; // rotate
764 // DO variant - disassembly only, no pattern
766 multiclass T2I_bin_rrot_DO<bits<3> opcod, string opc> {
767 def rr : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS), IIC_iEXTAr,
768 opc, "\t$dst, $LHS, $RHS", []> {
769 let Inst{31-27} = 0b11111;
770 let Inst{26-23} = 0b0100;
771 let Inst{22-20} = opcod;
772 let Inst{15-12} = 0b1111;
774 let Inst{5-4} = 0b00; // rotate
776 def rr_rot : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS, i32imm:$rot),
777 IIC_iEXTAsr, opc, "\t$dst, $LHS, $RHS, ror $rot", []> {
778 let Inst{31-27} = 0b11111;
779 let Inst{26-23} = 0b0100;
780 let Inst{22-20} = opcod;
781 let Inst{15-12} = 0b1111;
783 let Inst{5-4} = {?,?}; // rotate
787 //===----------------------------------------------------------------------===//
789 //===----------------------------------------------------------------------===//
791 //===----------------------------------------------------------------------===//
792 // Miscellaneous Instructions.
795 // LEApcrel - Load a pc-relative address into a register without offending the
797 let neverHasSideEffects = 1 in {
798 let isReMaterializable = 1 in
799 def t2LEApcrel : T2XI<(outs rGPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
800 "adr${p}.w\t$dst, #$label", []> {
801 let Inst{31-27} = 0b11110;
802 let Inst{25-24} = 0b10;
803 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
806 let Inst{19-16} = 0b1111; // Rn
809 } // neverHasSideEffects
810 def t2LEApcrelJT : T2XI<(outs rGPR:$dst),
811 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
812 "adr${p}.w\t$dst, #${label}_${id}", []> {
813 let Inst{31-27} = 0b11110;
814 let Inst{25-24} = 0b10;
815 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
818 let Inst{19-16} = 0b1111; // Rn
822 // ADD r, sp, {so_imm|i12}
823 def t2ADDrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
824 IIC_iALUi, "add", ".w\t$dst, $sp, $imm", []> {
825 let Inst{31-27} = 0b11110;
827 let Inst{24-21} = 0b1000;
828 let Inst{20} = ?; // The S bit.
829 let Inst{19-16} = 0b1101; // Rn = sp
832 def t2ADDrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
833 IIC_iALUi, "addw", "\t$dst, $sp, $imm", []> {
834 let Inst{31-27} = 0b11110;
836 let Inst{24-21} = 0b0000;
837 let Inst{20} = 0; // The S bit.
838 let Inst{19-16} = 0b1101; // Rn = sp
843 def t2ADDrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
844 IIC_iALUsi, "add", ".w\t$dst, $sp, $rhs", []> {
845 let Inst{31-27} = 0b11101;
846 let Inst{26-25} = 0b01;
847 let Inst{24-21} = 0b1000;
848 let Inst{20} = ?; // The S bit.
849 let Inst{19-16} = 0b1101; // Rn = sp
853 // SUB r, sp, {so_imm|i12}
854 def t2SUBrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
855 IIC_iALUi, "sub", ".w\t$dst, $sp, $imm", []> {
856 let Inst{31-27} = 0b11110;
858 let Inst{24-21} = 0b1101;
859 let Inst{20} = ?; // The S bit.
860 let Inst{19-16} = 0b1101; // Rn = sp
863 def t2SUBrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
864 IIC_iALUi, "subw", "\t$dst, $sp, $imm", []> {
865 let Inst{31-27} = 0b11110;
867 let Inst{24-21} = 0b0101;
868 let Inst{20} = 0; // The S bit.
869 let Inst{19-16} = 0b1101; // Rn = sp
874 def t2SUBrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
876 "sub", "\t$dst, $sp, $rhs", []> {
877 let Inst{31-27} = 0b11101;
878 let Inst{26-25} = 0b01;
879 let Inst{24-21} = 0b1101;
880 let Inst{20} = ?; // The S bit.
881 let Inst{19-16} = 0b1101; // Rn = sp
885 // Signed and unsigned division on v7-M
886 def t2SDIV : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iALUi,
887 "sdiv", "\t$dst, $a, $b",
888 [(set rGPR:$dst, (sdiv rGPR:$a, rGPR:$b))]>,
889 Requires<[HasDivide]> {
890 let Inst{31-27} = 0b11111;
891 let Inst{26-21} = 0b011100;
893 let Inst{15-12} = 0b1111;
894 let Inst{7-4} = 0b1111;
897 def t2UDIV : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iALUi,
898 "udiv", "\t$dst, $a, $b",
899 [(set rGPR:$dst, (udiv rGPR:$a, rGPR:$b))]>,
900 Requires<[HasDivide]> {
901 let Inst{31-27} = 0b11111;
902 let Inst{26-21} = 0b011101;
904 let Inst{15-12} = 0b1111;
905 let Inst{7-4} = 0b1111;
908 //===----------------------------------------------------------------------===//
909 // Load / store Instructions.
913 let canFoldAsLoad = 1, isReMaterializable = 1 in
914 defm t2LDR : T2I_ld<0, 0b10, "ldr", UnOpFrag<(load node:$Src)>>;
916 // Loads with zero extension
917 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", UnOpFrag<(zextloadi16 node:$Src)>>;
918 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", UnOpFrag<(zextloadi8 node:$Src)>>;
920 // Loads with sign extension
921 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", UnOpFrag<(sextloadi16 node:$Src)>>;
922 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", UnOpFrag<(sextloadi8 node:$Src)>>;
924 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
926 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
927 (ins t2addrmode_imm8s4:$addr),
928 IIC_iLoadi, "ldrd", "\t$dst1, $addr", []>;
929 def t2LDRDpci : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
930 (ins i32imm:$addr), IIC_iLoadi,
931 "ldrd", "\t$dst1, $addr", []> {
932 let Inst{19-16} = 0b1111; // Rn
934 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
936 // zextload i1 -> zextload i8
937 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
938 (t2LDRBi12 t2addrmode_imm12:$addr)>;
939 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
940 (t2LDRBi8 t2addrmode_imm8:$addr)>;
941 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
942 (t2LDRBs t2addrmode_so_reg:$addr)>;
943 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
944 (t2LDRBpci tconstpool:$addr)>;
946 // extload -> zextload
947 // FIXME: Reduce the number of patterns by legalizing extload to zextload
949 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
950 (t2LDRBi12 t2addrmode_imm12:$addr)>;
951 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
952 (t2LDRBi8 t2addrmode_imm8:$addr)>;
953 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
954 (t2LDRBs t2addrmode_so_reg:$addr)>;
955 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
956 (t2LDRBpci tconstpool:$addr)>;
958 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
959 (t2LDRBi12 t2addrmode_imm12:$addr)>;
960 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
961 (t2LDRBi8 t2addrmode_imm8:$addr)>;
962 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
963 (t2LDRBs t2addrmode_so_reg:$addr)>;
964 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
965 (t2LDRBpci tconstpool:$addr)>;
967 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
968 (t2LDRHi12 t2addrmode_imm12:$addr)>;
969 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
970 (t2LDRHi8 t2addrmode_imm8:$addr)>;
971 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
972 (t2LDRHs t2addrmode_so_reg:$addr)>;
973 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
974 (t2LDRHpci tconstpool:$addr)>;
976 // FIXME: The destination register of the loads and stores can't be PC, but
977 // can be SP. We need another regclass (similar to rGPR) to represent
978 // that. Not a pressing issue since these are selected manually,
982 let mayLoad = 1, neverHasSideEffects = 1 in {
983 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$dst, GPR:$base_wb),
984 (ins t2addrmode_imm8:$addr),
985 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
986 "ldr", "\t$dst, $addr!", "$addr.base = $base_wb",
989 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$dst, GPR:$base_wb),
990 (ins GPR:$base, t2am_imm8_offset:$offset),
991 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
992 "ldr", "\t$dst, [$base], $offset", "$base = $base_wb",
995 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
996 (ins t2addrmode_imm8:$addr),
997 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
998 "ldrb", "\t$dst, $addr!", "$addr.base = $base_wb",
1000 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1001 (ins GPR:$base, t2am_imm8_offset:$offset),
1002 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1003 "ldrb", "\t$dst, [$base], $offset", "$base = $base_wb",
1006 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1007 (ins t2addrmode_imm8:$addr),
1008 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1009 "ldrh", "\t$dst, $addr!", "$addr.base = $base_wb",
1011 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1012 (ins GPR:$base, t2am_imm8_offset:$offset),
1013 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1014 "ldrh", "\t$dst, [$base], $offset", "$base = $base_wb",
1017 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1018 (ins t2addrmode_imm8:$addr),
1019 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1020 "ldrsb", "\t$dst, $addr!", "$addr.base = $base_wb",
1022 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1023 (ins GPR:$base, t2am_imm8_offset:$offset),
1024 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1025 "ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb",
1028 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1029 (ins t2addrmode_imm8:$addr),
1030 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1031 "ldrsh", "\t$dst, $addr!", "$addr.base = $base_wb",
1033 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1034 (ins GPR:$base, t2am_imm8_offset:$offset),
1035 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1036 "ldrsh", "\t$dst, [$base], $offset", "$base = $base_wb",
1038 } // mayLoad = 1, neverHasSideEffects = 1
1040 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1041 // for disassembly only.
1042 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1043 class T2IldT<bit signed, bits<2> type, string opc>
1044 : T2Ii8<(outs GPR:$dst), (ins t2addrmode_imm8:$addr), IIC_iLoadi, opc,
1045 "\t$dst, $addr", []> {
1046 let Inst{31-27} = 0b11111;
1047 let Inst{26-25} = 0b00;
1048 let Inst{24} = signed;
1050 let Inst{22-21} = type;
1051 let Inst{20} = 1; // load
1053 let Inst{10-8} = 0b110; // PUW.
1056 def t2LDRT : T2IldT<0, 0b10, "ldrt">;
1057 def t2LDRBT : T2IldT<0, 0b00, "ldrbt">;
1058 def t2LDRHT : T2IldT<0, 0b01, "ldrht">;
1059 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt">;
1060 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht">;
1063 defm t2STR :T2I_st<0b10,"str", BinOpFrag<(store node:$LHS, node:$RHS)>>;
1064 defm t2STRB:T2I_st<0b00,"strb",BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1065 defm t2STRH:T2I_st<0b01,"strh",BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1068 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1069 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1070 (ins GPR:$src1, GPR:$src2, t2addrmode_imm8s4:$addr),
1071 IIC_iStorer, "strd", "\t$src1, $addr", []>;
1074 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1075 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1076 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1077 "str", "\t$src, [$base, $offset]!", "$base = $base_wb",
1079 (pre_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1081 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1082 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1083 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1084 "str", "\t$src, [$base], $offset", "$base = $base_wb",
1086 (post_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1088 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1089 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1090 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1091 "strh", "\t$src, [$base, $offset]!", "$base = $base_wb",
1093 (pre_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1095 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1096 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1097 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1098 "strh", "\t$src, [$base], $offset", "$base = $base_wb",
1100 (post_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1102 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1103 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1104 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1105 "strb", "\t$src, [$base, $offset]!", "$base = $base_wb",
1107 (pre_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1109 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1110 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1111 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1112 "strb", "\t$src, [$base], $offset", "$base = $base_wb",
1114 (post_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1116 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1118 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1119 class T2IstT<bits<2> type, string opc>
1120 : T2Ii8<(outs GPR:$src), (ins t2addrmode_imm8:$addr), IIC_iStorei, opc,
1121 "\t$src, $addr", []> {
1122 let Inst{31-27} = 0b11111;
1123 let Inst{26-25} = 0b00;
1124 let Inst{24} = 0; // not signed
1126 let Inst{22-21} = type;
1127 let Inst{20} = 0; // store
1129 let Inst{10-8} = 0b110; // PUW
1132 def t2STRT : T2IstT<0b10, "strt">;
1133 def t2STRBT : T2IstT<0b00, "strbt">;
1134 def t2STRHT : T2IstT<0b01, "strht">;
1136 // ldrd / strd pre / post variants
1137 // For disassembly only.
1139 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1140 (ins GPR:$base, t2am_imm8s4_offset:$imm), NoItinerary,
1141 "ldrd", "\t$dst1, $dst2, [$base, $imm]!", []>;
1143 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1144 (ins GPR:$base, t2am_imm8s4_offset:$imm), NoItinerary,
1145 "ldrd", "\t$dst1, $dst2, [$base], $imm", []>;
1147 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1148 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1149 NoItinerary, "strd", "\t$src1, $src2, [$base, $imm]!", []>;
1151 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1152 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1153 NoItinerary, "strd", "\t$src1, $src2, [$base], $imm", []>;
1155 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1156 // data/instruction access. These are for disassembly only.
1158 // A8.6.117, A8.6.118. Different instructions are generated for #0 and #-0.
1159 // The neg_zero operand translates -0 to -1, -1 to -2, ..., etc.
1160 multiclass T2Ipl<bit instr, bit write, string opc> {
1162 def i12 : T2I<(outs), (ins GPR:$base, i32imm:$imm), IIC_iLoadi, opc,
1163 "\t[$base, $imm]", []> {
1164 let Inst{31-25} = 0b1111100;
1165 let Inst{24} = instr;
1166 let Inst{23} = 1; // U = 1
1168 let Inst{21} = write;
1170 let Inst{15-12} = 0b1111;
1173 def i8 : T2I<(outs), (ins GPR:$base, neg_zero:$imm), IIC_iLoadi, opc,
1174 "\t[$base, $imm]", []> {
1175 let Inst{31-25} = 0b1111100;
1176 let Inst{24} = instr;
1177 let Inst{23} = 0; // U = 0
1179 let Inst{21} = write;
1181 let Inst{15-12} = 0b1111;
1182 let Inst{11-8} = 0b1100;
1185 def pci : T2I<(outs), (ins GPR:$base, neg_zero:$imm), IIC_iLoadi, opc,
1186 "\t[pc, $imm]", []> {
1187 let Inst{31-25} = 0b1111100;
1188 let Inst{24} = instr;
1189 let Inst{23} = ?; // add = (U == 1)
1191 let Inst{21} = write;
1193 let Inst{19-16} = 0b1111; // Rn = 0b1111
1194 let Inst{15-12} = 0b1111;
1197 def r : T2I<(outs), (ins GPR:$base, GPR:$a), IIC_iLoadi, opc,
1198 "\t[$base, $a]", []> {
1199 let Inst{31-25} = 0b1111100;
1200 let Inst{24} = instr;
1201 let Inst{23} = 0; // add = TRUE for T1
1203 let Inst{21} = write;
1205 let Inst{15-12} = 0b1111;
1206 let Inst{11-6} = 0000000;
1207 let Inst{5-4} = 0b00; // no shift is applied
1210 def s : T2I<(outs), (ins GPR:$base, GPR:$a, i32imm:$shamt), IIC_iLoadi, opc,
1211 "\t[$base, $a, lsl $shamt]", []> {
1212 let Inst{31-25} = 0b1111100;
1213 let Inst{24} = instr;
1214 let Inst{23} = 0; // add = TRUE for T1
1216 let Inst{21} = write;
1218 let Inst{15-12} = 0b1111;
1219 let Inst{11-6} = 0000000;
1223 defm t2PLD : T2Ipl<0, 0, "pld">;
1224 defm t2PLDW : T2Ipl<0, 1, "pldw">;
1225 defm t2PLI : T2Ipl<1, 0, "pli">;
1227 //===----------------------------------------------------------------------===//
1228 // Load / store multiple Instructions.
1231 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1232 def t2LDM : T2XI<(outs), (ins addrmode4:$addr, pred:$p,
1233 reglist:$dsts, variable_ops), IIC_iLoadm,
1234 "ldm${addr:submode}${p}${addr:wide}\t$addr, $dsts", []> {
1235 let Inst{31-27} = 0b11101;
1236 let Inst{26-25} = 0b00;
1237 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1239 let Inst{21} = 0; // The W bit.
1240 let Inst{20} = 1; // Load
1243 def t2LDM_UPD : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
1244 reglist:$dsts, variable_ops), IIC_iLoadm,
1245 "ldm${addr:submode}${p}${addr:wide}\t$addr!, $dsts",
1246 "$addr.addr = $wb", []> {
1247 let Inst{31-27} = 0b11101;
1248 let Inst{26-25} = 0b00;
1249 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1251 let Inst{21} = 1; // The W bit.
1252 let Inst{20} = 1; // Load
1254 } // mayLoad, neverHasSideEffects, hasExtraDefRegAllocReq
1256 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in {
1257 def t2STM : T2XI<(outs), (ins addrmode4:$addr, pred:$p,
1258 reglist:$srcs, variable_ops), IIC_iStorem,
1259 "stm${addr:submode}${p}${addr:wide}\t$addr, $srcs", []> {
1260 let Inst{31-27} = 0b11101;
1261 let Inst{26-25} = 0b00;
1262 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1264 let Inst{21} = 0; // The W bit.
1265 let Inst{20} = 0; // Store
1268 def t2STM_UPD : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
1269 reglist:$srcs, variable_ops),
1271 "stm${addr:submode}${p}${addr:wide}\t$addr!, $srcs",
1272 "$addr.addr = $wb", []> {
1273 let Inst{31-27} = 0b11101;
1274 let Inst{26-25} = 0b00;
1275 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1277 let Inst{21} = 1; // The W bit.
1278 let Inst{20} = 0; // Store
1280 } // mayStore, neverHasSideEffects, hasExtraSrcRegAllocReq
1282 //===----------------------------------------------------------------------===//
1283 // Move Instructions.
1286 let neverHasSideEffects = 1 in
1287 def t2MOVr : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
1288 "mov", ".w\t$dst, $src", []> {
1289 let Inst{31-27} = 0b11101;
1290 let Inst{26-25} = 0b01;
1291 let Inst{24-21} = 0b0010;
1292 let Inst{20} = ?; // The S bit.
1293 let Inst{19-16} = 0b1111; // Rn
1294 let Inst{14-12} = 0b000;
1295 let Inst{7-4} = 0b0000;
1298 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1299 let isReMaterializable = 1, isAsCheapAsAMove = 1, AddedComplexity = 1 in
1300 def t2MOVi : T2sI<(outs rGPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
1301 "mov", ".w\t$dst, $src",
1302 [(set rGPR:$dst, t2_so_imm:$src)]> {
1303 let Inst{31-27} = 0b11110;
1305 let Inst{24-21} = 0b0010;
1306 let Inst{20} = ?; // The S bit.
1307 let Inst{19-16} = 0b1111; // Rn
1311 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
1312 def t2MOVi16 : T2I<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVi,
1313 "movw", "\t$dst, $src",
1314 [(set rGPR:$dst, imm0_65535:$src)]> {
1315 let Inst{31-27} = 0b11110;
1317 let Inst{24-21} = 0b0010;
1318 let Inst{20} = 0; // The S bit.
1322 let Constraints = "$src = $dst" in
1323 def t2MOVTi16 : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1324 "movt", "\t$dst, $imm",
1326 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1327 let Inst{31-27} = 0b11110;
1329 let Inst{24-21} = 0b0110;
1330 let Inst{20} = 0; // The S bit.
1334 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1336 //===----------------------------------------------------------------------===//
1337 // Extend Instructions.
1342 defm t2SXTB : T2I_unary_rrot<0b100, "sxtb",
1343 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1344 defm t2SXTH : T2I_unary_rrot<0b000, "sxth",
1345 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1346 defm t2SXTB16 : T2I_unary_rrot_sxtb16<0b010, "sxtb16">;
1348 defm t2SXTAB : T2I_bin_rrot<0b100, "sxtab",
1349 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1350 defm t2SXTAH : T2I_bin_rrot<0b000, "sxtah",
1351 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1352 defm t2SXTAB16 : T2I_bin_rrot_DO<0b010, "sxtab16">;
1354 // TODO: SXT(A){B|H}16 - done for disassembly only
1358 let AddedComplexity = 16 in {
1359 defm t2UXTB : T2I_unary_rrot<0b101, "uxtb",
1360 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1361 defm t2UXTH : T2I_unary_rrot<0b001, "uxth",
1362 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1363 defm t2UXTB16 : T2I_unary_rrot_uxtb16<0b011, "uxtb16",
1364 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1366 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1367 // The transformation should probably be done as a combiner action
1368 // instead so we can include a check for masking back in the upper
1369 // eight bits of the source into the lower eight bits of the result.
1370 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1371 // (t2UXTB16r_rot rGPR:$Src, 24)>, Requires<[HasT2ExtractPack]>;
1372 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1373 (t2UXTB16r_rot rGPR:$Src, 8)>, Requires<[HasT2ExtractPack]>;
1375 defm t2UXTAB : T2I_bin_rrot<0b101, "uxtab",
1376 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1377 defm t2UXTAH : T2I_bin_rrot<0b001, "uxtah",
1378 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1379 defm t2UXTAB16 : T2I_bin_rrot_DO<0b011, "uxtab16">;
1382 //===----------------------------------------------------------------------===//
1383 // Arithmetic Instructions.
1386 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1387 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1388 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1389 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1391 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1392 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1393 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1394 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1395 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1396 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1397 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1399 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1400 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1401 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1402 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1403 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1404 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1405 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1406 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1409 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1410 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1411 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1412 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1414 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1415 // The assume-no-carry-in form uses the negation of the input since add/sub
1416 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1417 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1419 // The AddedComplexity preferences the first variant over the others since
1420 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1421 let AddedComplexity = 1 in
1422 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1423 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1424 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1425 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1426 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1427 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1428 let AddedComplexity = 1 in
1429 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1430 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1431 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1432 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1433 // The with-carry-in form matches bitwise not instead of the negation.
1434 // Effectively, the inverse interpretation of the carry flag already accounts
1435 // for part of the negation.
1436 let AddedComplexity = 1 in
1437 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1438 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1439 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1440 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1442 // Select Bytes -- for disassembly only
1444 def t2SEL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, "sel",
1445 "\t$dst, $a, $b", []> {
1446 let Inst{31-27} = 0b11111;
1447 let Inst{26-24} = 0b010;
1449 let Inst{22-20} = 0b010;
1450 let Inst{15-12} = 0b1111;
1452 let Inst{6-4} = 0b000;
1455 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1456 // And Miscellaneous operations -- for disassembly only
1457 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1458 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1459 : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), NoItinerary, opc,
1460 "\t$dst, $a, $b", pat> {
1461 let Inst{31-27} = 0b11111;
1462 let Inst{26-23} = 0b0101;
1463 let Inst{22-20} = op22_20;
1464 let Inst{15-12} = 0b1111;
1465 let Inst{7-4} = op7_4;
1468 // Saturating add/subtract -- for disassembly only
1470 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1471 [(set rGPR:$dst, (int_arm_qadd rGPR:$a, rGPR:$b))]>;
1472 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1473 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1474 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1475 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1476 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1477 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1478 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1479 [(set rGPR:$dst, (int_arm_qsub rGPR:$a, rGPR:$b))]>;
1480 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1481 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1482 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1483 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1484 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1485 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1486 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1487 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1489 // Signed/Unsigned add/subtract -- for disassembly only
1491 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1492 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1493 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1494 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1495 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1496 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1497 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1498 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1499 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1500 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1501 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1502 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1504 // Signed/Unsigned halving add/subtract -- for disassembly only
1506 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1507 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1508 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1509 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1510 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1511 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1512 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1513 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1514 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1515 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1516 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1517 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1519 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1521 def t2USAD8 : T2I_mac<0, 0b111, 0b0000, (outs rGPR:$dst),
1522 (ins rGPR:$a, rGPR:$b),
1523 NoItinerary, "usad8", "\t$dst, $a, $b", []> {
1524 let Inst{15-12} = 0b1111;
1526 def t2USADA8 : T2I_mac<0, 0b111, 0b0000, (outs rGPR:$dst),
1527 (ins rGPR:$a, rGPR:$b, rGPR:$acc), NoItinerary, "usada8",
1528 "\t$dst, $a, $b, $acc", []>;
1530 // Signed/Unsigned saturate -- for disassembly only
1532 def t2SSAT: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a, shift_imm:$sh),
1533 NoItinerary, "ssat", "\t$dst, $bit_pos, $a$sh",
1534 [/* For disassembly only; pattern left blank */]> {
1535 let Inst{31-27} = 0b11110;
1536 let Inst{25-22} = 0b1100;
1541 def t2SSAT16: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a), NoItinerary,
1542 "ssat16", "\t$dst, $bit_pos, $a",
1543 [/* For disassembly only; pattern left blank */]> {
1544 let Inst{31-27} = 0b11110;
1545 let Inst{25-22} = 0b1100;
1548 let Inst{21} = 1; // sh = '1'
1549 let Inst{14-12} = 0b000; // imm3 = '000'
1550 let Inst{7-6} = 0b00; // imm2 = '00'
1553 def t2USAT: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a, shift_imm:$sh),
1554 NoItinerary, "usat", "\t$dst, $bit_pos, $a$sh",
1555 [/* For disassembly only; pattern left blank */]> {
1556 let Inst{31-27} = 0b11110;
1557 let Inst{25-22} = 0b1110;
1562 def t2USAT16: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a), NoItinerary,
1563 "usat16", "\t$dst, $bit_pos, $a",
1564 [/* For disassembly only; pattern left blank */]> {
1565 let Inst{31-27} = 0b11110;
1566 let Inst{25-22} = 0b1110;
1569 let Inst{21} = 1; // sh = '1'
1570 let Inst{14-12} = 0b000; // imm3 = '000'
1571 let Inst{7-6} = 0b00; // imm2 = '00'
1574 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
1575 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
1577 //===----------------------------------------------------------------------===//
1578 // Shift and rotate Instructions.
1581 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
1582 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
1583 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
1584 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
1586 let Uses = [CPSR] in {
1587 def t2MOVrx : T2sI<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1588 "rrx", "\t$dst, $src",
1589 [(set rGPR:$dst, (ARMrrx rGPR:$src))]> {
1590 let Inst{31-27} = 0b11101;
1591 let Inst{26-25} = 0b01;
1592 let Inst{24-21} = 0b0010;
1593 let Inst{20} = ?; // The S bit.
1594 let Inst{19-16} = 0b1111; // Rn
1595 let Inst{14-12} = 0b000;
1596 let Inst{7-4} = 0b0011;
1600 let Defs = [CPSR] in {
1601 def t2MOVsrl_flag : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1602 "lsrs", ".w\t$dst, $src, #1",
1603 [(set rGPR:$dst, (ARMsrl_flag rGPR:$src))]> {
1604 let Inst{31-27} = 0b11101;
1605 let Inst{26-25} = 0b01;
1606 let Inst{24-21} = 0b0010;
1607 let Inst{20} = 1; // The S bit.
1608 let Inst{19-16} = 0b1111; // Rn
1609 let Inst{5-4} = 0b01; // Shift type.
1610 // Shift amount = Inst{14-12:7-6} = 1.
1611 let Inst{14-12} = 0b000;
1612 let Inst{7-6} = 0b01;
1614 def t2MOVsra_flag : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1615 "asrs", ".w\t$dst, $src, #1",
1616 [(set rGPR:$dst, (ARMsra_flag rGPR:$src))]> {
1617 let Inst{31-27} = 0b11101;
1618 let Inst{26-25} = 0b01;
1619 let Inst{24-21} = 0b0010;
1620 let Inst{20} = 1; // The S bit.
1621 let Inst{19-16} = 0b1111; // Rn
1622 let Inst{5-4} = 0b10; // Shift type.
1623 // Shift amount = Inst{14-12:7-6} = 1.
1624 let Inst{14-12} = 0b000;
1625 let Inst{7-6} = 0b01;
1629 //===----------------------------------------------------------------------===//
1630 // Bitwise Instructions.
1633 defm t2AND : T2I_bin_w_irs<0b0000, "and",
1634 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1635 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
1636 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
1637 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1638 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
1639 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
1640 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1641 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
1643 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
1644 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1645 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
1647 defm t2ANDS : T2I_bin_s_irs<0b0000, "and",
1648 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1649 BinOpFrag<(ARMand node:$LHS, node:$RHS)>, 1>;
1651 let Constraints = "$src = $dst" in
1652 def t2BFC : T2I<(outs rGPR:$dst), (ins rGPR:$src, bf_inv_mask_imm:$imm),
1653 IIC_iUNAsi, "bfc", "\t$dst, $imm",
1654 [(set rGPR:$dst, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
1655 let Inst{31-27} = 0b11110;
1657 let Inst{24-20} = 0b10110;
1658 let Inst{19-16} = 0b1111; // Rn
1662 def t2SBFX: T2I<(outs rGPR:$dst), (ins rGPR:$src, imm0_31:$lsb, imm0_31:$width),
1663 IIC_iBITi, "sbfx", "\t$dst, $src, $lsb, $width", []> {
1664 let Inst{31-27} = 0b11110;
1666 let Inst{24-20} = 0b10100;
1670 def t2UBFX: T2I<(outs rGPR:$dst), (ins rGPR:$src, imm0_31:$lsb, imm0_31:$width),
1671 IIC_iBITi, "ubfx", "\t$dst, $src, $lsb, $width", []> {
1672 let Inst{31-27} = 0b11110;
1674 let Inst{24-20} = 0b11100;
1678 // A8.6.18 BFI - Bitfield insert (Encoding T1)
1679 let Constraints = "$src = $dst" in
1680 def t2BFI : T2I<(outs rGPR:$dst),
1681 (ins rGPR:$src, rGPR:$val, bf_inv_mask_imm:$imm),
1682 IIC_iBITi, "bfi", "\t$dst, $val, $imm",
1683 [(set rGPR:$dst, (ARMbfi rGPR:$src, rGPR:$val,
1684 bf_inv_mask_imm:$imm))]> {
1685 let Inst{31-27} = 0b11110;
1687 let Inst{24-20} = 0b10110;
1691 defm t2ORN : T2I_bin_irs<0b0011, "orn",
1692 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1693 BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
1695 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
1696 let AddedComplexity = 1 in
1697 defm t2MVN : T2I_un_irs <0b0011, "mvn", UnOpFrag<(not node:$Src)>, 1, 1>;
1700 let AddedComplexity = 1 in
1701 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
1702 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
1704 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
1705 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
1706 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
1707 Requires<[IsThumb2]>;
1709 def : T2Pat<(t2_so_imm_not:$src),
1710 (t2MVNi t2_so_imm_not:$src)>;
1712 //===----------------------------------------------------------------------===//
1713 // Multiply Instructions.
1715 let isCommutable = 1 in
1716 def t2MUL: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1717 "mul", "\t$dst, $a, $b",
1718 [(set rGPR:$dst, (mul rGPR:$a, rGPR:$b))]> {
1719 let Inst{31-27} = 0b11111;
1720 let Inst{26-23} = 0b0110;
1721 let Inst{22-20} = 0b000;
1722 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1723 let Inst{7-4} = 0b0000; // Multiply
1726 def t2MLA: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1727 "mla", "\t$dst, $a, $b, $c",
1728 [(set rGPR:$dst, (add (mul rGPR:$a, rGPR:$b), rGPR:$c))]> {
1729 let Inst{31-27} = 0b11111;
1730 let Inst{26-23} = 0b0110;
1731 let Inst{22-20} = 0b000;
1732 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1733 let Inst{7-4} = 0b0000; // Multiply
1736 def t2MLS: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1737 "mls", "\t$dst, $a, $b, $c",
1738 [(set rGPR:$dst, (sub rGPR:$c, (mul rGPR:$a, rGPR:$b)))]> {
1739 let Inst{31-27} = 0b11111;
1740 let Inst{26-23} = 0b0110;
1741 let Inst{22-20} = 0b000;
1742 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1743 let Inst{7-4} = 0b0001; // Multiply and Subtract
1746 // Extra precision multiplies with low / high results
1747 let neverHasSideEffects = 1 in {
1748 let isCommutable = 1 in {
1749 def t2SMULL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1750 (ins rGPR:$a, rGPR:$b), IIC_iMUL64,
1751 "smull", "\t$ldst, $hdst, $a, $b", []> {
1752 let Inst{31-27} = 0b11111;
1753 let Inst{26-23} = 0b0111;
1754 let Inst{22-20} = 0b000;
1755 let Inst{7-4} = 0b0000;
1758 def t2UMULL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1759 (ins rGPR:$a, rGPR:$b), IIC_iMUL64,
1760 "umull", "\t$ldst, $hdst, $a, $b", []> {
1761 let Inst{31-27} = 0b11111;
1762 let Inst{26-23} = 0b0111;
1763 let Inst{22-20} = 0b010;
1764 let Inst{7-4} = 0b0000;
1768 // Multiply + accumulate
1769 def t2SMLAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1770 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1771 "smlal", "\t$ldst, $hdst, $a, $b", []>{
1772 let Inst{31-27} = 0b11111;
1773 let Inst{26-23} = 0b0111;
1774 let Inst{22-20} = 0b100;
1775 let Inst{7-4} = 0b0000;
1778 def t2UMLAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1779 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1780 "umlal", "\t$ldst, $hdst, $a, $b", []>{
1781 let Inst{31-27} = 0b11111;
1782 let Inst{26-23} = 0b0111;
1783 let Inst{22-20} = 0b110;
1784 let Inst{7-4} = 0b0000;
1787 def t2UMAAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1788 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1789 "umaal", "\t$ldst, $hdst, $a, $b", []>{
1790 let Inst{31-27} = 0b11111;
1791 let Inst{26-23} = 0b0111;
1792 let Inst{22-20} = 0b110;
1793 let Inst{7-4} = 0b0110;
1795 } // neverHasSideEffects
1797 // Rounding variants of the below included for disassembly only
1799 // Most significant word multiply
1800 def t2SMMUL : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1801 "smmul", "\t$dst, $a, $b",
1802 [(set rGPR:$dst, (mulhs rGPR:$a, rGPR:$b))]> {
1803 let Inst{31-27} = 0b11111;
1804 let Inst{26-23} = 0b0110;
1805 let Inst{22-20} = 0b101;
1806 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1807 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1810 def t2SMMULR : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1811 "smmulr", "\t$dst, $a, $b", []> {
1812 let Inst{31-27} = 0b11111;
1813 let Inst{26-23} = 0b0110;
1814 let Inst{22-20} = 0b101;
1815 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1816 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1819 def t2SMMLA : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1820 "smmla", "\t$dst, $a, $b, $c",
1821 [(set rGPR:$dst, (add (mulhs rGPR:$a, rGPR:$b), rGPR:$c))]> {
1822 let Inst{31-27} = 0b11111;
1823 let Inst{26-23} = 0b0110;
1824 let Inst{22-20} = 0b101;
1825 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1826 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1829 def t2SMMLAR: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1830 "smmlar", "\t$dst, $a, $b, $c", []> {
1831 let Inst{31-27} = 0b11111;
1832 let Inst{26-23} = 0b0110;
1833 let Inst{22-20} = 0b101;
1834 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1835 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1838 def t2SMMLS: T2I <(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1839 "smmls", "\t$dst, $a, $b, $c",
1840 [(set rGPR:$dst, (sub rGPR:$c, (mulhs rGPR:$a, rGPR:$b)))]> {
1841 let Inst{31-27} = 0b11111;
1842 let Inst{26-23} = 0b0110;
1843 let Inst{22-20} = 0b110;
1844 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1845 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1848 def t2SMMLSR:T2I <(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1849 "smmlsr", "\t$dst, $a, $b, $c", []> {
1850 let Inst{31-27} = 0b11111;
1851 let Inst{26-23} = 0b0110;
1852 let Inst{22-20} = 0b110;
1853 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1854 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1857 multiclass T2I_smul<string opc, PatFrag opnode> {
1858 def BB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1859 !strconcat(opc, "bb"), "\t$dst, $a, $b",
1860 [(set rGPR:$dst, (opnode (sext_inreg rGPR:$a, i16),
1861 (sext_inreg rGPR:$b, i16)))]> {
1862 let Inst{31-27} = 0b11111;
1863 let Inst{26-23} = 0b0110;
1864 let Inst{22-20} = 0b001;
1865 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1866 let Inst{7-6} = 0b00;
1867 let Inst{5-4} = 0b00;
1870 def BT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1871 !strconcat(opc, "bt"), "\t$dst, $a, $b",
1872 [(set rGPR:$dst, (opnode (sext_inreg rGPR:$a, i16),
1873 (sra rGPR:$b, (i32 16))))]> {
1874 let Inst{31-27} = 0b11111;
1875 let Inst{26-23} = 0b0110;
1876 let Inst{22-20} = 0b001;
1877 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1878 let Inst{7-6} = 0b00;
1879 let Inst{5-4} = 0b01;
1882 def TB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1883 !strconcat(opc, "tb"), "\t$dst, $a, $b",
1884 [(set rGPR:$dst, (opnode (sra rGPR:$a, (i32 16)),
1885 (sext_inreg rGPR:$b, i16)))]> {
1886 let Inst{31-27} = 0b11111;
1887 let Inst{26-23} = 0b0110;
1888 let Inst{22-20} = 0b001;
1889 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1890 let Inst{7-6} = 0b00;
1891 let Inst{5-4} = 0b10;
1894 def TT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1895 !strconcat(opc, "tt"), "\t$dst, $a, $b",
1896 [(set rGPR:$dst, (opnode (sra rGPR:$a, (i32 16)),
1897 (sra rGPR:$b, (i32 16))))]> {
1898 let Inst{31-27} = 0b11111;
1899 let Inst{26-23} = 0b0110;
1900 let Inst{22-20} = 0b001;
1901 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1902 let Inst{7-6} = 0b00;
1903 let Inst{5-4} = 0b11;
1906 def WB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1907 !strconcat(opc, "wb"), "\t$dst, $a, $b",
1908 [(set rGPR:$dst, (sra (opnode rGPR:$a,
1909 (sext_inreg rGPR:$b, i16)), (i32 16)))]> {
1910 let Inst{31-27} = 0b11111;
1911 let Inst{26-23} = 0b0110;
1912 let Inst{22-20} = 0b011;
1913 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1914 let Inst{7-6} = 0b00;
1915 let Inst{5-4} = 0b00;
1918 def WT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1919 !strconcat(opc, "wt"), "\t$dst, $a, $b",
1920 [(set rGPR:$dst, (sra (opnode rGPR:$a,
1921 (sra rGPR:$b, (i32 16))), (i32 16)))]> {
1922 let Inst{31-27} = 0b11111;
1923 let Inst{26-23} = 0b0110;
1924 let Inst{22-20} = 0b011;
1925 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1926 let Inst{7-6} = 0b00;
1927 let Inst{5-4} = 0b01;
1932 multiclass T2I_smla<string opc, PatFrag opnode> {
1933 def BB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1934 !strconcat(opc, "bb"), "\t$dst, $a, $b, $acc",
1935 [(set rGPR:$dst, (add rGPR:$acc,
1936 (opnode (sext_inreg rGPR:$a, i16),
1937 (sext_inreg rGPR:$b, i16))))]> {
1938 let Inst{31-27} = 0b11111;
1939 let Inst{26-23} = 0b0110;
1940 let Inst{22-20} = 0b001;
1941 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1942 let Inst{7-6} = 0b00;
1943 let Inst{5-4} = 0b00;
1946 def BT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1947 !strconcat(opc, "bt"), "\t$dst, $a, $b, $acc",
1948 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sext_inreg rGPR:$a, i16),
1949 (sra rGPR:$b, (i32 16)))))]> {
1950 let Inst{31-27} = 0b11111;
1951 let Inst{26-23} = 0b0110;
1952 let Inst{22-20} = 0b001;
1953 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1954 let Inst{7-6} = 0b00;
1955 let Inst{5-4} = 0b01;
1958 def TB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1959 !strconcat(opc, "tb"), "\t$dst, $a, $b, $acc",
1960 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sra rGPR:$a, (i32 16)),
1961 (sext_inreg rGPR:$b, i16))))]> {
1962 let Inst{31-27} = 0b11111;
1963 let Inst{26-23} = 0b0110;
1964 let Inst{22-20} = 0b001;
1965 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1966 let Inst{7-6} = 0b00;
1967 let Inst{5-4} = 0b10;
1970 def TT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1971 !strconcat(opc, "tt"), "\t$dst, $a, $b, $acc",
1972 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sra rGPR:$a, (i32 16)),
1973 (sra rGPR:$b, (i32 16)))))]> {
1974 let Inst{31-27} = 0b11111;
1975 let Inst{26-23} = 0b0110;
1976 let Inst{22-20} = 0b001;
1977 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1978 let Inst{7-6} = 0b00;
1979 let Inst{5-4} = 0b11;
1982 def WB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1983 !strconcat(opc, "wb"), "\t$dst, $a, $b, $acc",
1984 [(set rGPR:$dst, (add rGPR:$acc, (sra (opnode rGPR:$a,
1985 (sext_inreg rGPR:$b, i16)), (i32 16))))]> {
1986 let Inst{31-27} = 0b11111;
1987 let Inst{26-23} = 0b0110;
1988 let Inst{22-20} = 0b011;
1989 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1990 let Inst{7-6} = 0b00;
1991 let Inst{5-4} = 0b00;
1994 def WT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1995 !strconcat(opc, "wt"), "\t$dst, $a, $b, $acc",
1996 [(set rGPR:$dst, (add rGPR:$acc, (sra (opnode rGPR:$a,
1997 (sra rGPR:$b, (i32 16))), (i32 16))))]> {
1998 let Inst{31-27} = 0b11111;
1999 let Inst{26-23} = 0b0110;
2000 let Inst{22-20} = 0b011;
2001 let Inst{15-12} = {?, ?, ?, ?}; // Ra
2002 let Inst{7-6} = 0b00;
2003 let Inst{5-4} = 0b01;
2007 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2008 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2010 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2011 def t2SMLALBB : T2I_mac<1, 0b100, 0b1000, (outs rGPR:$ldst,rGPR:$hdst),
2012 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlalbb", "\t$ldst, $hdst, $a, $b",
2013 [/* For disassembly only; pattern left blank */]>;
2014 def t2SMLALBT : T2I_mac<1, 0b100, 0b1001, (outs rGPR:$ldst,rGPR:$hdst),
2015 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlalbt", "\t$ldst, $hdst, $a, $b",
2016 [/* For disassembly only; pattern left blank */]>;
2017 def t2SMLALTB : T2I_mac<1, 0b100, 0b1010, (outs rGPR:$ldst,rGPR:$hdst),
2018 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaltb", "\t$ldst, $hdst, $a, $b",
2019 [/* For disassembly only; pattern left blank */]>;
2020 def t2SMLALTT : T2I_mac<1, 0b100, 0b1011, (outs rGPR:$ldst,rGPR:$hdst),
2021 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaltt", "\t$ldst, $hdst, $a, $b",
2022 [/* For disassembly only; pattern left blank */]>;
2024 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2025 // These are for disassembly only.
2027 def t2SMUAD: T2I_mac<0, 0b010, 0b0000, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2028 IIC_iMAC32, "smuad", "\t$dst, $a, $b", []> {
2029 let Inst{15-12} = 0b1111;
2031 def t2SMUADX:T2I_mac<0, 0b010, 0b0001, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2032 IIC_iMAC32, "smuadx", "\t$dst, $a, $b", []> {
2033 let Inst{15-12} = 0b1111;
2035 def t2SMUSD: T2I_mac<0, 0b100, 0b0000, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2036 IIC_iMAC32, "smusd", "\t$dst, $a, $b", []> {
2037 let Inst{15-12} = 0b1111;
2039 def t2SMUSDX:T2I_mac<0, 0b100, 0b0001, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2040 IIC_iMAC32, "smusdx", "\t$dst, $a, $b", []> {
2041 let Inst{15-12} = 0b1111;
2043 def t2SMLAD : T2I_mac<0, 0b010, 0b0000, (outs rGPR:$dst),
2044 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlad",
2045 "\t$dst, $a, $b, $acc", []>;
2046 def t2SMLADX : T2I_mac<0, 0b010, 0b0001, (outs rGPR:$dst),
2047 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smladx",
2048 "\t$dst, $a, $b, $acc", []>;
2049 def t2SMLSD : T2I_mac<0, 0b100, 0b0000, (outs rGPR:$dst),
2050 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlsd",
2051 "\t$dst, $a, $b, $acc", []>;
2052 def t2SMLSDX : T2I_mac<0, 0b100, 0b0001, (outs rGPR:$dst),
2053 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlsdx",
2054 "\t$dst, $a, $b, $acc", []>;
2055 def t2SMLALD : T2I_mac<1, 0b100, 0b1100, (outs rGPR:$ldst,rGPR:$hdst),
2056 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlald",
2057 "\t$ldst, $hdst, $a, $b", []>;
2058 def t2SMLALDX : T2I_mac<1, 0b100, 0b1101, (outs rGPR:$ldst,rGPR:$hdst),
2059 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaldx",
2060 "\t$ldst, $hdst, $a, $b", []>;
2061 def t2SMLSLD : T2I_mac<1, 0b101, 0b1100, (outs rGPR:$ldst,rGPR:$hdst),
2062 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlsld",
2063 "\t$ldst, $hdst, $a, $b", []>;
2064 def t2SMLSLDX : T2I_mac<1, 0b101, 0b1101, (outs rGPR:$ldst,rGPR:$hdst),
2065 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlsldx",
2066 "\t$ldst, $hdst, $a, $b", []>;
2068 //===----------------------------------------------------------------------===//
2069 // Misc. Arithmetic Instructions.
2072 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2073 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2074 : T2I<oops, iops, itin, opc, asm, pattern> {
2075 let Inst{31-27} = 0b11111;
2076 let Inst{26-22} = 0b01010;
2077 let Inst{21-20} = op1;
2078 let Inst{15-12} = 0b1111;
2079 let Inst{7-6} = 0b10;
2080 let Inst{5-4} = op2;
2083 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2084 "clz", "\t$dst, $src", [(set rGPR:$dst, (ctlz rGPR:$src))]>;
2086 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2087 "rbit", "\t$dst, $src",
2088 [(set rGPR:$dst, (ARMrbit rGPR:$src))]>;
2090 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2091 "rev", ".w\t$dst, $src", [(set rGPR:$dst, (bswap rGPR:$src))]>;
2093 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2094 "rev16", ".w\t$dst, $src",
2096 (or (and (srl rGPR:$src, (i32 8)), 0xFF),
2097 (or (and (shl rGPR:$src, (i32 8)), 0xFF00),
2098 (or (and (srl rGPR:$src, (i32 8)), 0xFF0000),
2099 (and (shl rGPR:$src, (i32 8)), 0xFF000000)))))]>;
2101 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2102 "revsh", ".w\t$dst, $src",
2105 (or (srl (and rGPR:$src, 0xFF00), (i32 8)),
2106 (shl rGPR:$src, (i32 8))), i16))]>;
2108 def t2PKHBT : T2I<(outs rGPR:$dst), (ins rGPR:$src1, rGPR:$src2, shift_imm:$sh),
2109 IIC_iBITsi, "pkhbt", "\t$dst, $src1, $src2$sh",
2110 [(set rGPR:$dst, (or (and rGPR:$src1, 0xFFFF),
2111 (and (shl rGPR:$src2, lsl_amt:$sh),
2113 Requires<[HasT2ExtractPack]> {
2114 let Inst{31-27} = 0b11101;
2115 let Inst{26-25} = 0b01;
2116 let Inst{24-20} = 0b01100;
2117 let Inst{5} = 0; // BT form
2121 // Alternate cases for PKHBT where identities eliminate some nodes.
2122 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2123 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2124 Requires<[HasT2ExtractPack]>;
2125 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2126 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2127 Requires<[HasT2ExtractPack]>;
2129 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2130 // will match the pattern below.
2131 def t2PKHTB : T2I<(outs rGPR:$dst), (ins rGPR:$src1, rGPR:$src2, shift_imm:$sh),
2132 IIC_iBITsi, "pkhtb", "\t$dst, $src1, $src2$sh",
2133 [(set rGPR:$dst, (or (and rGPR:$src1, 0xFFFF0000),
2134 (and (sra rGPR:$src2, asr_amt:$sh),
2136 Requires<[HasT2ExtractPack]> {
2137 let Inst{31-27} = 0b11101;
2138 let Inst{26-25} = 0b01;
2139 let Inst{24-20} = 0b01100;
2140 let Inst{5} = 1; // TB form
2144 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2145 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2146 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2147 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2148 Requires<[HasT2ExtractPack]>;
2149 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2150 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2151 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2152 Requires<[HasT2ExtractPack]>;
2154 //===----------------------------------------------------------------------===//
2155 // Comparison Instructions...
2157 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2158 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2159 defm t2CMPz : T2I_cmp_irs<0b1101, "cmp",
2160 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
2162 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2163 // Compare-to-zero still works out, just not the relationals
2164 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2165 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2166 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2167 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2169 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2170 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2172 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2173 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2175 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2176 BinOpFrag<(ARMcmpZ (and node:$LHS, node:$RHS), 0)>>;
2177 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2178 BinOpFrag<(ARMcmpZ (xor node:$LHS, node:$RHS), 0)>>;
2180 // Conditional moves
2181 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2182 // a two-value operand where a dag node expects two operands. :(
2183 let neverHasSideEffects = 1 in {
2184 def t2MOVCCr : T2I<(outs rGPR:$dst), (ins rGPR:$false, rGPR:$true), IIC_iCMOVr,
2185 "mov", ".w\t$dst, $true",
2186 [/*(set rGPR:$dst, (ARMcmov rGPR:$false, rGPR:$true, imm:$cc, CCR:$ccr))*/]>,
2187 RegConstraint<"$false = $dst"> {
2188 let Inst{31-27} = 0b11101;
2189 let Inst{26-25} = 0b01;
2190 let Inst{24-21} = 0b0010;
2191 let Inst{20} = 0; // The S bit.
2192 let Inst{19-16} = 0b1111; // Rn
2193 let Inst{14-12} = 0b000;
2194 let Inst{7-4} = 0b0000;
2197 def t2MOVCCi : T2I<(outs rGPR:$dst), (ins rGPR:$false, t2_so_imm:$true),
2198 IIC_iCMOVi, "mov", ".w\t$dst, $true",
2199 [/*(set rGPR:$dst,(ARMcmov rGPR:$false,t2_so_imm:$true, imm:$cc, CCR:$ccr))*/]>,
2200 RegConstraint<"$false = $dst"> {
2201 let Inst{31-27} = 0b11110;
2203 let Inst{24-21} = 0b0010;
2204 let Inst{20} = 0; // The S bit.
2205 let Inst{19-16} = 0b1111; // Rn
2209 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2210 string opc, string asm, list<dag> pattern>
2211 : T2I<oops, iops, itin, opc, asm, pattern> {
2212 let Inst{31-27} = 0b11101;
2213 let Inst{26-25} = 0b01;
2214 let Inst{24-21} = 0b0010;
2215 let Inst{20} = 0; // The S bit.
2216 let Inst{19-16} = 0b1111; // Rn
2217 let Inst{5-4} = opcod; // Shift type.
2219 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$dst),
2220 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2221 IIC_iCMOVsi, "lsl", ".w\t$dst, $true, $rhs", []>,
2222 RegConstraint<"$false = $dst">;
2223 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$dst),
2224 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2225 IIC_iCMOVsi, "lsr", ".w\t$dst, $true, $rhs", []>,
2226 RegConstraint<"$false = $dst">;
2227 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$dst),
2228 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2229 IIC_iCMOVsi, "asr", ".w\t$dst, $true, $rhs", []>,
2230 RegConstraint<"$false = $dst">;
2231 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$dst),
2232 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2233 IIC_iCMOVsi, "ror", ".w\t$dst, $true, $rhs", []>,
2234 RegConstraint<"$false = $dst">;
2235 } // neverHasSideEffects
2237 //===----------------------------------------------------------------------===//
2238 // Atomic operations intrinsics
2241 // memory barriers protect the atomic sequences
2242 let hasSideEffects = 1 in {
2243 def t2DMBsy : AInoP<(outs), (ins), ThumbFrm, NoItinerary, "dmb", "",
2244 [(ARMMemBarrier)]>, Requires<[IsThumb, HasDB]> {
2245 let Inst{31-4} = 0xF3BF8F5;
2246 // FIXME: add support for options other than a full system DMB
2247 let Inst{3-0} = 0b1111;
2250 def t2DSBsy : AInoP<(outs), (ins), ThumbFrm, NoItinerary, "dsb", "",
2251 [(ARMSyncBarrier)]>, Requires<[IsThumb, HasDB]> {
2252 let Inst{31-4} = 0xF3BF8F4;
2253 // FIXME: add support for options other than a full system DSB
2254 let Inst{3-0} = 0b1111;
2258 // Helper class for multiclass T2MemB -- for disassembly only
2259 class T2I_memb<string opc, string asm>
2260 : T2I<(outs), (ins), NoItinerary, opc, asm,
2261 [/* For disassembly only; pattern left blank */]>,
2262 Requires<[IsThumb2, HasV7]> {
2263 let Inst{31-20} = 0xf3b;
2264 let Inst{15-14} = 0b10;
2268 multiclass T2MemB<bits<4> op7_4, string opc> {
2270 def st : T2I_memb<opc, "\tst"> {
2271 let Inst{7-4} = op7_4;
2272 let Inst{3-0} = 0b1110;
2275 def ish : T2I_memb<opc, "\tish"> {
2276 let Inst{7-4} = op7_4;
2277 let Inst{3-0} = 0b1011;
2280 def ishst : T2I_memb<opc, "\tishst"> {
2281 let Inst{7-4} = op7_4;
2282 let Inst{3-0} = 0b1010;
2285 def nsh : T2I_memb<opc, "\tnsh"> {
2286 let Inst{7-4} = op7_4;
2287 let Inst{3-0} = 0b0111;
2290 def nshst : T2I_memb<opc, "\tnshst"> {
2291 let Inst{7-4} = op7_4;
2292 let Inst{3-0} = 0b0110;
2295 def osh : T2I_memb<opc, "\tosh"> {
2296 let Inst{7-4} = op7_4;
2297 let Inst{3-0} = 0b0011;
2300 def oshst : T2I_memb<opc, "\toshst"> {
2301 let Inst{7-4} = op7_4;
2302 let Inst{3-0} = 0b0010;
2306 // These DMB variants are for disassembly only.
2307 defm t2DMB : T2MemB<0b0101, "dmb">;
2309 // These DSB variants are for disassembly only.
2310 defm t2DSB : T2MemB<0b0100, "dsb">;
2312 // ISB has only full system option -- for disassembly only
2313 def t2ISBsy : T2I_memb<"isb", ""> {
2314 let Inst{7-4} = 0b0110;
2315 let Inst{3-0} = 0b1111;
2318 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2319 InstrItinClass itin, string opc, string asm, string cstr,
2320 list<dag> pattern, bits<4> rt2 = 0b1111>
2321 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2322 let Inst{31-27} = 0b11101;
2323 let Inst{26-20} = 0b0001101;
2324 let Inst{11-8} = rt2;
2325 let Inst{7-6} = 0b01;
2326 let Inst{5-4} = opcod;
2327 let Inst{3-0} = 0b1111;
2329 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2330 InstrItinClass itin, string opc, string asm, string cstr,
2331 list<dag> pattern, bits<4> rt2 = 0b1111>
2332 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2333 let Inst{31-27} = 0b11101;
2334 let Inst{26-20} = 0b0001100;
2335 let Inst{11-8} = rt2;
2336 let Inst{7-6} = 0b01;
2337 let Inst{5-4} = opcod;
2340 let mayLoad = 1 in {
2341 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2342 Size4Bytes, NoItinerary, "ldrexb", "\t$dest, [$ptr]",
2344 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2345 Size4Bytes, NoItinerary, "ldrexh", "\t$dest, [$ptr]",
2347 def t2LDREX : Thumb2I<(outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2348 Size4Bytes, NoItinerary,
2349 "ldrex", "\t$dest, [$ptr]", "",
2351 let Inst{31-27} = 0b11101;
2352 let Inst{26-20} = 0b0000101;
2353 let Inst{11-8} = 0b1111;
2354 let Inst{7-0} = 0b00000000; // imm8 = 0
2356 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$dest, rGPR:$dest2), (ins rGPR:$ptr),
2357 AddrModeNone, Size4Bytes, NoItinerary,
2358 "ldrexd", "\t$dest, $dest2, [$ptr]", "",
2362 let mayStore = 1, Constraints = "@earlyclobber $success" in {
2363 def t2STREXB : T2I_strex<0b00, (outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2364 AddrModeNone, Size4Bytes, NoItinerary,
2365 "strexb", "\t$success, $src, [$ptr]", "", []>;
2366 def t2STREXH : T2I_strex<0b01, (outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2367 AddrModeNone, Size4Bytes, NoItinerary,
2368 "strexh", "\t$success, $src, [$ptr]", "", []>;
2369 def t2STREX : Thumb2I<(outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2370 AddrModeNone, Size4Bytes, NoItinerary,
2371 "strex", "\t$success, $src, [$ptr]", "",
2373 let Inst{31-27} = 0b11101;
2374 let Inst{26-20} = 0b0000100;
2375 let Inst{7-0} = 0b00000000; // imm8 = 0
2377 def t2STREXD : T2I_strex<0b11, (outs rGPR:$success),
2378 (ins rGPR:$src, rGPR:$src2, rGPR:$ptr),
2379 AddrModeNone, Size4Bytes, NoItinerary,
2380 "strexd", "\t$success, $src, $src2, [$ptr]", "", [],
2384 // Clear-Exclusive is for disassembly only.
2385 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2386 [/* For disassembly only; pattern left blank */]>,
2387 Requires<[IsARM, HasV7]> {
2388 let Inst{31-20} = 0xf3b;
2389 let Inst{15-14} = 0b10;
2391 let Inst{7-4} = 0b0010;
2394 //===----------------------------------------------------------------------===//
2398 // __aeabi_read_tp preserves the registers r1-r3.
2400 Defs = [R0, R12, LR, CPSR] in {
2401 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2402 "bl\t__aeabi_read_tp",
2403 [(set R0, ARMthread_pointer)]> {
2404 let Inst{31-27} = 0b11110;
2405 let Inst{15-14} = 0b11;
2410 //===----------------------------------------------------------------------===//
2411 // SJLJ Exception handling intrinsics
2412 // eh_sjlj_setjmp() is an instruction sequence to store the return
2413 // address and save #0 in R0 for the non-longjmp case.
2414 // Since by its nature we may be coming from some other function to get
2415 // here, and we're using the stack frame for the containing function to
2416 // save/restore registers, we can't keep anything live in regs across
2417 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2418 // when we get here from a longjmp(). We force everthing out of registers
2419 // except for our own input by listing the relevant registers in Defs. By
2420 // doing so, we also cause the prologue/epilogue code to actively preserve
2421 // all of the callee-saved resgisters, which is exactly what we want.
2422 // $val is a scratch register for our use.
2424 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2425 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2426 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2427 D31 ], hasSideEffects = 1, isBarrier = 1 in {
2428 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2429 AddrModeNone, SizeSpecial, NoItinerary,
2430 "mov\t$val, pc\t${:comment} begin eh.setjmp\n\t"
2431 "adds\t$val, #7\n\t"
2432 "str\t$val, [$src, #4]\n\t"
2435 "movs\tr0, #1\t${:comment} end eh.setjmp\n\t"
2437 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2438 Requires<[IsThumb2, HasVFP2]>;
2442 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2443 hasSideEffects = 1, isBarrier = 1 in {
2444 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2445 AddrModeNone, SizeSpecial, NoItinerary,
2446 "mov\t$val, pc\t${:comment} begin eh.setjmp\n\t"
2447 "adds\t$val, #7\n\t"
2448 "str\t$val, [$src, #4]\n\t"
2451 "movs\tr0, #1\t${:comment} end eh.setjmp\n\t"
2453 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2454 Requires<[IsThumb2, NoVFP]>;
2458 //===----------------------------------------------------------------------===//
2459 // Control-Flow Instructions
2462 // FIXME: remove when we have a way to marking a MI with these properties.
2463 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2465 // FIXME: Should pc be an implicit operand like PICADD, etc?
2466 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2467 hasExtraDefRegAllocReq = 1 in
2468 def t2LDM_RET : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
2469 reglist:$dsts, variable_ops),
2471 "ldm${addr:submode}${p}${addr:wide}\t$addr!, $dsts",
2472 "$addr.addr = $wb", []> {
2473 let Inst{31-27} = 0b11101;
2474 let Inst{26-25} = 0b00;
2475 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
2477 let Inst{21} = 1; // The W bit.
2478 let Inst{20} = 1; // Load
2481 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2482 let isPredicable = 1 in
2483 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2485 [(br bb:$target)]> {
2486 let Inst{31-27} = 0b11110;
2487 let Inst{15-14} = 0b10;
2491 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2494 (ins GPR:$target, GPR:$index, jt2block_operand:$jt, i32imm:$id),
2495 IIC_Br, "mov\tpc, $target$jt",
2496 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]> {
2497 let Inst{31-27} = 0b11101;
2498 let Inst{26-20} = 0b0100100;
2499 let Inst{19-16} = 0b1111;
2500 let Inst{14-12} = 0b000;
2501 let Inst{11-8} = 0b1111; // Rd = pc
2502 let Inst{7-4} = 0b0000;
2505 // FIXME: Add a non-pc based case that can be predicated.
2508 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2509 IIC_Br, "tbb\t$index$jt", []> {
2510 let Inst{31-27} = 0b11101;
2511 let Inst{26-20} = 0b0001101;
2512 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2513 let Inst{15-8} = 0b11110000;
2514 let Inst{7-4} = 0b0000; // B form
2519 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2520 IIC_Br, "tbh\t$index$jt", []> {
2521 let Inst{31-27} = 0b11101;
2522 let Inst{26-20} = 0b0001101;
2523 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2524 let Inst{15-8} = 0b11110000;
2525 let Inst{7-4} = 0b0001; // H form
2528 // Generic versions of the above two instructions, for disassembly only
2530 def t2TBBgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2531 "tbb", "\t[$a, $b]", []>{
2532 let Inst{31-27} = 0b11101;
2533 let Inst{26-20} = 0b0001101;
2534 let Inst{15-8} = 0b11110000;
2535 let Inst{7-4} = 0b0000; // B form
2538 def t2TBHgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2539 "tbh", "\t[$a, $b, lsl #1]", []> {
2540 let Inst{31-27} = 0b11101;
2541 let Inst{26-20} = 0b0001101;
2542 let Inst{15-8} = 0b11110000;
2543 let Inst{7-4} = 0b0001; // H form
2545 } // isNotDuplicable, isIndirectBranch
2547 } // isBranch, isTerminator, isBarrier
2549 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
2550 // a two-value operand where a dag node expects two operands. :(
2551 let isBranch = 1, isTerminator = 1 in
2552 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
2554 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
2555 let Inst{31-27} = 0b11110;
2556 let Inst{15-14} = 0b10;
2562 let Defs = [ITSTATE] in
2563 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
2564 AddrModeNone, Size2Bytes, IIC_iALUx,
2565 "it$mask\t$cc", "", []> {
2566 // 16-bit instruction.
2567 let Inst{31-16} = 0x0000;
2568 let Inst{15-8} = 0b10111111;
2571 // Branch and Exchange Jazelle -- for disassembly only
2573 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
2574 [/* For disassembly only; pattern left blank */]> {
2575 let Inst{31-27} = 0b11110;
2577 let Inst{25-20} = 0b111100;
2578 let Inst{15-14} = 0b10;
2582 // Change Processor State is a system instruction -- for disassembly only.
2583 // The singleton $opt operand contains the following information:
2584 // opt{4-0} = mode from Inst{4-0}
2585 // opt{5} = changemode from Inst{17}
2586 // opt{8-6} = AIF from Inst{8-6}
2587 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
2588 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
2589 [/* For disassembly only; pattern left blank */]> {
2590 let Inst{31-27} = 0b11110;
2592 let Inst{25-20} = 0b111010;
2593 let Inst{15-14} = 0b10;
2597 // A6.3.4 Branches and miscellaneous control
2598 // Table A6-14 Change Processor State, and hint instructions
2599 // Helper class for disassembly only.
2600 class T2I_hint<bits<8> op7_0, string opc, string asm>
2601 : T2I<(outs), (ins), NoItinerary, opc, asm,
2602 [/* For disassembly only; pattern left blank */]> {
2603 let Inst{31-20} = 0xf3a;
2604 let Inst{15-14} = 0b10;
2606 let Inst{10-8} = 0b000;
2607 let Inst{7-0} = op7_0;
2610 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
2611 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
2612 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
2613 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
2614 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
2616 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
2617 [/* For disassembly only; pattern left blank */]> {
2618 let Inst{31-20} = 0xf3a;
2619 let Inst{15-14} = 0b10;
2621 let Inst{10-8} = 0b000;
2622 let Inst{7-4} = 0b1111;
2625 // Secure Monitor Call is a system instruction -- for disassembly only
2626 // Option = Inst{19-16}
2627 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
2628 [/* For disassembly only; pattern left blank */]> {
2629 let Inst{31-27} = 0b11110;
2630 let Inst{26-20} = 0b1111111;
2631 let Inst{15-12} = 0b1000;
2634 // Store Return State is a system instruction -- for disassembly only
2635 def t2SRSDBW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
2636 [/* For disassembly only; pattern left blank */]> {
2637 let Inst{31-27} = 0b11101;
2638 let Inst{26-20} = 0b0000010; // W = 1
2641 def t2SRSDB : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
2642 [/* For disassembly only; pattern left blank */]> {
2643 let Inst{31-27} = 0b11101;
2644 let Inst{26-20} = 0b0000000; // W = 0
2647 def t2SRSIAW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
2648 [/* For disassembly only; pattern left blank */]> {
2649 let Inst{31-27} = 0b11101;
2650 let Inst{26-20} = 0b0011010; // W = 1
2653 def t2SRSIA : T2I<(outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
2654 [/* For disassembly only; pattern left blank */]> {
2655 let Inst{31-27} = 0b11101;
2656 let Inst{26-20} = 0b0011000; // W = 0
2659 // Return From Exception is a system instruction -- for disassembly only
2660 def t2RFEDBW : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfedb", "\t$base!",
2661 [/* For disassembly only; pattern left blank */]> {
2662 let Inst{31-27} = 0b11101;
2663 let Inst{26-20} = 0b0000011; // W = 1
2666 def t2RFEDB : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeab", "\t$base",
2667 [/* For disassembly only; pattern left blank */]> {
2668 let Inst{31-27} = 0b11101;
2669 let Inst{26-20} = 0b0000001; // W = 0
2672 def t2RFEIAW : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeia", "\t$base!",
2673 [/* For disassembly only; pattern left blank */]> {
2674 let Inst{31-27} = 0b11101;
2675 let Inst{26-20} = 0b0011011; // W = 1
2678 def t2RFEIA : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeia", "\t$base",
2679 [/* For disassembly only; pattern left blank */]> {
2680 let Inst{31-27} = 0b11101;
2681 let Inst{26-20} = 0b0011001; // W = 0
2684 //===----------------------------------------------------------------------===//
2685 // Non-Instruction Patterns
2688 // Two piece so_imms.
2689 def : T2Pat<(or rGPR:$LHS, t2_so_imm2part:$RHS),
2690 (t2ORRri (t2ORRri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2691 (t2_so_imm2part_2 imm:$RHS))>;
2692 def : T2Pat<(xor rGPR:$LHS, t2_so_imm2part:$RHS),
2693 (t2EORri (t2EORri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2694 (t2_so_imm2part_2 imm:$RHS))>;
2695 def : T2Pat<(add rGPR:$LHS, t2_so_imm2part:$RHS),
2696 (t2ADDri (t2ADDri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2697 (t2_so_imm2part_2 imm:$RHS))>;
2698 def : T2Pat<(add rGPR:$LHS, t2_so_neg_imm2part:$RHS),
2699 (t2SUBri (t2SUBri rGPR:$LHS, (t2_so_neg_imm2part_1 imm:$RHS)),
2700 (t2_so_neg_imm2part_2 imm:$RHS))>;
2702 // 32-bit immediate using movw + movt.
2703 // This is a single pseudo instruction to make it re-materializable.
2704 // FIXME: Remove this when we can do generalized remat.
2705 let isReMaterializable = 1 in
2706 def t2MOVi32imm : T2Ix2<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
2707 "movw", "\t$dst, ${src:lo16}\n\tmovt${p}\t$dst, ${src:hi16}",
2708 [(set rGPR:$dst, (i32 imm:$src))]>;
2710 // ConstantPool, GlobalAddress, and JumpTable
2711 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
2712 Requires<[IsThumb2, DontUseMovt]>;
2713 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
2714 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
2715 Requires<[IsThumb2, UseMovt]>;
2717 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
2718 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
2720 // Pseudo instruction that combines ldr from constpool and add pc. This should
2721 // be expanded into two instructions late to allow if-conversion and
2723 let canFoldAsLoad = 1, isReMaterializable = 1 in
2724 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
2726 "${:comment} ldr.w\t$dst, $addr\n$cp:\n\tadd\t$dst, pc",
2727 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
2729 Requires<[IsThumb2]>;
2731 //===----------------------------------------------------------------------===//
2732 // Move between special register and ARM core register -- for disassembly only
2736 def t2MRS : T2I<(outs rGPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, cpsr",
2737 [/* For disassembly only; pattern left blank */]> {
2738 let Inst{31-27} = 0b11110;
2740 let Inst{25-21} = 0b11111;
2741 let Inst{20} = 0; // The R bit.
2742 let Inst{15-14} = 0b10;
2747 def t2MRSsys : T2I<(outs rGPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, spsr",
2748 [/* For disassembly only; pattern left blank */]> {
2749 let Inst{31-27} = 0b11110;
2751 let Inst{25-21} = 0b11111;
2752 let Inst{20} = 1; // The R bit.
2753 let Inst{15-14} = 0b10;
2758 def t2MSR : T2I<(outs), (ins rGPR:$src, msr_mask:$mask), NoItinerary, "msr",
2759 "\tcpsr$mask, $src",
2760 [/* For disassembly only; pattern left blank */]> {
2761 let Inst{31-27} = 0b11110;
2763 let Inst{25-21} = 0b11100;
2764 let Inst{20} = 0; // The R bit.
2765 let Inst{15-14} = 0b10;
2770 def t2MSRsys : T2I<(outs), (ins rGPR:$src, msr_mask:$mask), NoItinerary, "msr",
2771 "\tspsr$mask, $src",
2772 [/* For disassembly only; pattern left blank */]> {
2773 let Inst{31-27} = 0b11110;
2775 let Inst{25-21} = 0b11100;
2776 let Inst{20} = 1; // The R bit.
2777 let Inst{15-14} = 0b10;