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 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
147 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
148 def t2addrmode_imm8s4 : Operand<i32> {
149 let PrintMethod = "printT2AddrModeImm8s4Operand";
150 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
153 def t2am_imm8s4_offset : Operand<i32> {
154 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
157 // t2addrmode_so_reg := reg + (reg << imm2)
158 def t2addrmode_so_reg : Operand<i32>,
159 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
160 let PrintMethod = "printT2AddrModeSoRegOperand";
161 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
165 //===----------------------------------------------------------------------===//
166 // Multiclass helpers...
169 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
170 /// unary operation that produces a value. These are predicable and can be
171 /// changed to modify CPSR.
172 multiclass T2I_un_irs<bits<4> opcod, string opc, PatFrag opnode,
173 bit Cheap = 0, bit ReMat = 0> {
175 def i : T2sI<(outs rGPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
177 [(set rGPR:$dst, (opnode t2_so_imm:$src))]> {
178 let isAsCheapAsAMove = Cheap;
179 let isReMaterializable = ReMat;
180 let Inst{31-27} = 0b11110;
182 let Inst{24-21} = opcod;
183 let Inst{20} = ?; // The S bit.
184 let Inst{19-16} = 0b1111; // Rn
188 def r : T2sI<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVr,
189 opc, ".w\t$dst, $src",
190 [(set rGPR:$dst, (opnode rGPR:$src))]> {
191 let Inst{31-27} = 0b11101;
192 let Inst{26-25} = 0b01;
193 let Inst{24-21} = opcod;
194 let Inst{20} = ?; // The S bit.
195 let Inst{19-16} = 0b1111; // Rn
196 let Inst{14-12} = 0b000; // imm3
197 let Inst{7-6} = 0b00; // imm2
198 let Inst{5-4} = 0b00; // type
201 def s : T2sI<(outs rGPR:$dst), (ins t2_so_reg:$src), IIC_iMOVsi,
202 opc, ".w\t$dst, $src",
203 [(set rGPR:$dst, (opnode t2_so_reg:$src))]> {
204 let Inst{31-27} = 0b11101;
205 let Inst{26-25} = 0b01;
206 let Inst{24-21} = opcod;
207 let Inst{20} = ?; // The S bit.
208 let Inst{19-16} = 0b1111; // Rn
212 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
213 /// binary operation that produces a value. These are predicable and can be
214 /// changed to modify CPSR.
215 multiclass T2I_bin_irs<bits<4> opcod, string opc, PatFrag opnode,
216 bit Commutable = 0, string wide = ""> {
218 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
219 opc, "\t$dst, $lhs, $rhs",
220 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]> {
221 let Inst{31-27} = 0b11110;
223 let Inst{24-21} = opcod;
224 let Inst{20} = ?; // The S bit.
228 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iALUr,
229 opc, !strconcat(wide, "\t$dst, $lhs, $rhs"),
230 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]> {
231 let isCommutable = Commutable;
232 let Inst{31-27} = 0b11101;
233 let Inst{26-25} = 0b01;
234 let Inst{24-21} = opcod;
235 let Inst{20} = ?; // The S bit.
236 let Inst{14-12} = 0b000; // imm3
237 let Inst{7-6} = 0b00; // imm2
238 let Inst{5-4} = 0b00; // type
241 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
242 opc, !strconcat(wide, "\t$dst, $lhs, $rhs"),
243 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]> {
244 let Inst{31-27} = 0b11101;
245 let Inst{26-25} = 0b01;
246 let Inst{24-21} = opcod;
247 let Inst{20} = ?; // The S bit.
251 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
252 // the ".w" prefix to indicate that they are wide.
253 multiclass T2I_bin_w_irs<bits<4> opcod, string opc, PatFrag opnode,
254 bit Commutable = 0> :
255 T2I_bin_irs<opcod, opc, opnode, Commutable, ".w">;
257 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
258 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
259 /// it is equivalent to the T2I_bin_irs counterpart.
260 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
262 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_imm:$lhs), IIC_iALUi,
263 opc, ".w\t$dst, $rhs, $lhs",
264 [(set rGPR:$dst, (opnode t2_so_imm:$lhs, rGPR:$rhs))]> {
265 let Inst{31-27} = 0b11110;
267 let Inst{24-21} = opcod;
268 let Inst{20} = ?; // The S bit.
272 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$rhs, rGPR:$lhs), IIC_iALUr,
273 opc, "\t$dst, $rhs, $lhs",
274 [/* For disassembly only; pattern left blank */]> {
275 let Inst{31-27} = 0b11101;
276 let Inst{26-25} = 0b01;
277 let Inst{24-21} = opcod;
278 let Inst{20} = ?; // The S bit.
279 let Inst{14-12} = 0b000; // imm3
280 let Inst{7-6} = 0b00; // imm2
281 let Inst{5-4} = 0b00; // type
284 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_reg:$lhs), IIC_iALUsi,
285 opc, "\t$dst, $rhs, $lhs",
286 [(set rGPR:$dst, (opnode t2_so_reg:$lhs, rGPR:$rhs))]> {
287 let Inst{31-27} = 0b11101;
288 let Inst{26-25} = 0b01;
289 let Inst{24-21} = opcod;
290 let Inst{20} = ?; // The S bit.
294 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
295 /// instruction modifies the CPSR register.
296 let Defs = [CPSR] in {
297 multiclass T2I_bin_s_irs<bits<4> opcod, string opc, PatFrag opnode,
298 bit Commutable = 0> {
300 def ri : T2I<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
301 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
302 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
303 let Inst{31-27} = 0b11110;
305 let Inst{24-21} = opcod;
306 let Inst{20} = 1; // The S bit.
310 def rr : T2I<(outs rGPR:$dst), (ins GPR:$lhs, rGPR:$rhs), IIC_iALUr,
311 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
312 [(set rGPR:$dst, (opnode GPR:$lhs, rGPR:$rhs))]> {
313 let isCommutable = Commutable;
314 let Inst{31-27} = 0b11101;
315 let Inst{26-25} = 0b01;
316 let Inst{24-21} = opcod;
317 let Inst{20} = 1; // The S bit.
318 let Inst{14-12} = 0b000; // imm3
319 let Inst{7-6} = 0b00; // imm2
320 let Inst{5-4} = 0b00; // type
323 def rs : T2I<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
324 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
325 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
326 let Inst{31-27} = 0b11101;
327 let Inst{26-25} = 0b01;
328 let Inst{24-21} = opcod;
329 let Inst{20} = 1; // The S bit.
334 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
335 /// patterns for a binary operation that produces a value.
336 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
337 bit Commutable = 0> {
339 // The register-immediate version is re-materializable. This is useful
340 // in particular for taking the address of a local.
341 let isReMaterializable = 1 in {
342 def ri : T2sI<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
343 opc, ".w\t$dst, $lhs, $rhs",
344 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
345 let Inst{31-27} = 0b11110;
348 let Inst{23-21} = op23_21;
349 let Inst{20} = 0; // The S bit.
354 def ri12 : T2I<(outs rGPR:$dst), (ins GPR:$lhs, imm0_4095:$rhs), IIC_iALUi,
355 !strconcat(opc, "w"), "\t$dst, $lhs, $rhs",
356 [(set rGPR:$dst, (opnode GPR:$lhs, imm0_4095:$rhs))]> {
357 let Inst{31-27} = 0b11110;
360 let Inst{23-21} = op23_21;
361 let Inst{20} = 0; // The S bit.
365 def rr : T2sI<(outs rGPR:$dst), (ins GPR:$lhs, rGPR:$rhs), IIC_iALUr,
366 opc, ".w\t$dst, $lhs, $rhs",
367 [(set rGPR:$dst, (opnode GPR:$lhs, rGPR:$rhs))]> {
368 let isCommutable = Commutable;
369 let Inst{31-27} = 0b11101;
370 let Inst{26-25} = 0b01;
372 let Inst{23-21} = op23_21;
373 let Inst{20} = 0; // The S bit.
374 let Inst{14-12} = 0b000; // imm3
375 let Inst{7-6} = 0b00; // imm2
376 let Inst{5-4} = 0b00; // type
379 def rs : T2sI<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
380 opc, ".w\t$dst, $lhs, $rhs",
381 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
382 let Inst{31-27} = 0b11101;
383 let Inst{26-25} = 0b01;
385 let Inst{23-21} = op23_21;
386 let Inst{20} = 0; // The S bit.
390 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
391 /// for a binary operation that produces a value and use the carry
392 /// bit. It's not predicable.
393 let Uses = [CPSR] in {
394 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
395 bit Commutable = 0> {
397 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
398 opc, "\t$dst, $lhs, $rhs",
399 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]>,
400 Requires<[IsThumb2]> {
401 let Inst{31-27} = 0b11110;
403 let Inst{24-21} = opcod;
404 let Inst{20} = 0; // The S bit.
408 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iALUr,
409 opc, ".w\t$dst, $lhs, $rhs",
410 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]>,
411 Requires<[IsThumb2]> {
412 let isCommutable = Commutable;
413 let Inst{31-27} = 0b11101;
414 let Inst{26-25} = 0b01;
415 let Inst{24-21} = opcod;
416 let Inst{20} = 0; // The S bit.
417 let Inst{14-12} = 0b000; // imm3
418 let Inst{7-6} = 0b00; // imm2
419 let Inst{5-4} = 0b00; // type
422 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
423 opc, ".w\t$dst, $lhs, $rhs",
424 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]>,
425 Requires<[IsThumb2]> {
426 let Inst{31-27} = 0b11101;
427 let Inst{26-25} = 0b01;
428 let Inst{24-21} = opcod;
429 let Inst{20} = 0; // The S bit.
433 // Carry setting variants
434 let Defs = [CPSR] in {
435 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
436 bit Commutable = 0> {
438 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
439 opc, "\t$dst, $lhs, $rhs",
440 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]>,
441 Requires<[IsThumb2]> {
442 let Inst{31-27} = 0b11110;
444 let Inst{24-21} = opcod;
445 let Inst{20} = 1; // The S bit.
449 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iALUr,
450 opc, ".w\t$dst, $lhs, $rhs",
451 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]>,
452 Requires<[IsThumb2]> {
453 let isCommutable = Commutable;
454 let Inst{31-27} = 0b11101;
455 let Inst{26-25} = 0b01;
456 let Inst{24-21} = opcod;
457 let Inst{20} = 1; // The S bit.
458 let Inst{14-12} = 0b000; // imm3
459 let Inst{7-6} = 0b00; // imm2
460 let Inst{5-4} = 0b00; // type
463 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
464 opc, ".w\t$dst, $lhs, $rhs",
465 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]>,
466 Requires<[IsThumb2]> {
467 let Inst{31-27} = 0b11101;
468 let Inst{26-25} = 0b01;
469 let Inst{24-21} = opcod;
470 let Inst{20} = 1; // The S bit.
476 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
477 /// version is not needed since this is only for codegen.
478 let Defs = [CPSR] in {
479 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
481 def ri : T2I<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_imm:$lhs), IIC_iALUi,
482 !strconcat(opc, "s"), ".w\t$dst, $rhs, $lhs",
483 [(set rGPR:$dst, (opnode t2_so_imm:$lhs, rGPR:$rhs))]> {
484 let Inst{31-27} = 0b11110;
486 let Inst{24-21} = opcod;
487 let Inst{20} = 1; // The S bit.
491 def rs : T2I<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_reg:$lhs), IIC_iALUsi,
492 !strconcat(opc, "s"), "\t$dst, $rhs, $lhs",
493 [(set rGPR:$dst, (opnode t2_so_reg:$lhs, rGPR:$rhs))]> {
494 let Inst{31-27} = 0b11101;
495 let Inst{26-25} = 0b01;
496 let Inst{24-21} = opcod;
497 let Inst{20} = 1; // The S bit.
502 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
503 // rotate operation that produces a value.
504 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
506 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
507 opc, ".w\t$dst, $lhs, $rhs",
508 [(set rGPR:$dst, (opnode rGPR:$lhs, imm1_31:$rhs))]> {
509 let Inst{31-27} = 0b11101;
510 let Inst{26-21} = 0b010010;
511 let Inst{19-16} = 0b1111; // Rn
512 let Inst{5-4} = opcod;
515 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iMOVsr,
516 opc, ".w\t$dst, $lhs, $rhs",
517 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]> {
518 let Inst{31-27} = 0b11111;
519 let Inst{26-23} = 0b0100;
520 let Inst{22-21} = opcod;
521 let Inst{15-12} = 0b1111;
522 let Inst{7-4} = 0b0000;
526 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
527 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
528 /// a explicit result, only implicitly set CPSR.
529 let isCompare = 1, Defs = [CPSR] in {
530 multiclass T2I_cmp_irs<bits<4> opcod, string opc, PatFrag opnode> {
532 def ri : T2I<(outs), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iCMPi,
533 opc, ".w\t$lhs, $rhs",
534 [(opnode GPR:$lhs, t2_so_imm:$rhs)]> {
535 let Inst{31-27} = 0b11110;
537 let Inst{24-21} = opcod;
538 let Inst{20} = 1; // The S bit.
540 let Inst{11-8} = 0b1111; // Rd
543 def rr : T2I<(outs), (ins GPR:$lhs, rGPR:$rhs), IIC_iCMPr,
544 opc, ".w\t$lhs, $rhs",
545 [(opnode GPR:$lhs, rGPR:$rhs)]> {
546 let Inst{31-27} = 0b11101;
547 let Inst{26-25} = 0b01;
548 let Inst{24-21} = opcod;
549 let Inst{20} = 1; // The S bit.
550 let Inst{14-12} = 0b000; // imm3
551 let Inst{11-8} = 0b1111; // Rd
552 let Inst{7-6} = 0b00; // imm2
553 let Inst{5-4} = 0b00; // type
556 def rs : T2I<(outs), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iCMPsi,
557 opc, ".w\t$lhs, $rhs",
558 [(opnode GPR:$lhs, t2_so_reg:$rhs)]> {
559 let Inst{31-27} = 0b11101;
560 let Inst{26-25} = 0b01;
561 let Inst{24-21} = opcod;
562 let Inst{20} = 1; // The S bit.
563 let Inst{11-8} = 0b1111; // Rd
568 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
569 multiclass T2I_ld<bit signed, bits<2> opcod, string opc, PatFrag opnode> {
570 def i12 : T2Ii12<(outs GPR:$dst), (ins t2addrmode_imm12:$addr), IIC_iLoadi,
571 opc, ".w\t$dst, $addr",
572 [(set GPR:$dst, (opnode t2addrmode_imm12:$addr))]> {
573 let Inst{31-27} = 0b11111;
574 let Inst{26-25} = 0b00;
575 let Inst{24} = signed;
577 let Inst{22-21} = opcod;
578 let Inst{20} = 1; // load
580 def i8 : T2Ii8 <(outs GPR:$dst), (ins t2addrmode_imm8:$addr), IIC_iLoadi,
581 opc, "\t$dst, $addr",
582 [(set GPR:$dst, (opnode t2addrmode_imm8:$addr))]> {
583 let Inst{31-27} = 0b11111;
584 let Inst{26-25} = 0b00;
585 let Inst{24} = signed;
587 let Inst{22-21} = opcod;
588 let Inst{20} = 1; // load
590 // Offset: index==TRUE, wback==FALSE
591 let Inst{10} = 1; // The P bit.
592 let Inst{8} = 0; // The W bit.
594 def s : T2Iso <(outs GPR:$dst), (ins t2addrmode_so_reg:$addr), IIC_iLoadr,
595 opc, ".w\t$dst, $addr",
596 [(set GPR:$dst, (opnode t2addrmode_so_reg:$addr))]> {
597 let Inst{31-27} = 0b11111;
598 let Inst{26-25} = 0b00;
599 let Inst{24} = signed;
601 let Inst{22-21} = opcod;
602 let Inst{20} = 1; // load
603 let Inst{11-6} = 0b000000;
605 def pci : T2Ipc <(outs GPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
606 opc, ".w\t$dst, $addr",
607 [(set GPR:$dst, (opnode (ARMWrapper tconstpool:$addr)))]> {
608 let isReMaterializable = 1;
609 let Inst{31-27} = 0b11111;
610 let Inst{26-25} = 0b00;
611 let Inst{24} = signed;
612 let Inst{23} = ?; // add = (U == '1')
613 let Inst{22-21} = opcod;
614 let Inst{20} = 1; // load
615 let Inst{19-16} = 0b1111; // Rn
619 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
620 multiclass T2I_st<bits<2> opcod, string opc, PatFrag opnode> {
621 def i12 : T2Ii12<(outs), (ins GPR:$src, t2addrmode_imm12:$addr), IIC_iStorei,
622 opc, ".w\t$src, $addr",
623 [(opnode GPR:$src, t2addrmode_imm12:$addr)]> {
624 let Inst{31-27} = 0b11111;
625 let Inst{26-23} = 0b0001;
626 let Inst{22-21} = opcod;
627 let Inst{20} = 0; // !load
629 def i8 : T2Ii8 <(outs), (ins GPR:$src, t2addrmode_imm8:$addr), IIC_iStorei,
630 opc, "\t$src, $addr",
631 [(opnode GPR:$src, t2addrmode_imm8:$addr)]> {
632 let Inst{31-27} = 0b11111;
633 let Inst{26-23} = 0b0000;
634 let Inst{22-21} = opcod;
635 let Inst{20} = 0; // !load
637 // Offset: index==TRUE, wback==FALSE
638 let Inst{10} = 1; // The P bit.
639 let Inst{8} = 0; // The W bit.
641 def s : T2Iso <(outs), (ins GPR:$src, t2addrmode_so_reg:$addr), IIC_iStorer,
642 opc, ".w\t$src, $addr",
643 [(opnode GPR:$src, t2addrmode_so_reg:$addr)]> {
644 let Inst{31-27} = 0b11111;
645 let Inst{26-23} = 0b0000;
646 let Inst{22-21} = opcod;
647 let Inst{20} = 0; // !load
648 let Inst{11-6} = 0b000000;
652 /// T2I_unary_rrot - A unary operation with two forms: one whose operand is a
653 /// register and one whose operand is a register rotated by 8/16/24.
654 multiclass T2I_unary_rrot<bits<3> opcod, string opc, PatFrag opnode> {
655 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
656 opc, ".w\t$dst, $src",
657 [(set rGPR:$dst, (opnode rGPR:$src))]> {
658 let Inst{31-27} = 0b11111;
659 let Inst{26-23} = 0b0100;
660 let Inst{22-20} = opcod;
661 let Inst{19-16} = 0b1111; // Rn
662 let Inst{15-12} = 0b1111;
664 let Inst{5-4} = 0b00; // rotate
666 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iUNAsi,
667 opc, ".w\t$dst, $src, ror $rot",
668 [(set rGPR:$dst, (opnode (rotr rGPR:$src, rot_imm:$rot)))]> {
669 let Inst{31-27} = 0b11111;
670 let Inst{26-23} = 0b0100;
671 let Inst{22-20} = opcod;
672 let Inst{19-16} = 0b1111; // Rn
673 let Inst{15-12} = 0b1111;
675 let Inst{5-4} = {?,?}; // rotate
679 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
680 multiclass T2I_unary_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
681 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
683 [(set rGPR:$dst, (opnode rGPR:$src))]>,
684 Requires<[HasT2ExtractPack]> {
685 let Inst{31-27} = 0b11111;
686 let Inst{26-23} = 0b0100;
687 let Inst{22-20} = opcod;
688 let Inst{19-16} = 0b1111; // Rn
689 let Inst{15-12} = 0b1111;
691 let Inst{5-4} = 0b00; // rotate
693 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iUNAsi,
694 opc, "\t$dst, $src, ror $rot",
695 [(set rGPR:$dst, (opnode (rotr rGPR:$src, rot_imm:$rot)))]>,
696 Requires<[HasT2ExtractPack]> {
697 let Inst{31-27} = 0b11111;
698 let Inst{26-23} = 0b0100;
699 let Inst{22-20} = opcod;
700 let Inst{19-16} = 0b1111; // Rn
701 let Inst{15-12} = 0b1111;
703 let Inst{5-4} = {?,?}; // rotate
707 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
709 multiclass T2I_unary_rrot_sxtb16<bits<3> opcod, string opc> {
710 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
711 opc, "\t$dst, $src", []> {
712 let Inst{31-27} = 0b11111;
713 let Inst{26-23} = 0b0100;
714 let Inst{22-20} = opcod;
715 let Inst{19-16} = 0b1111; // Rn
716 let Inst{15-12} = 0b1111;
718 let Inst{5-4} = 0b00; // rotate
720 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iUNAsi,
721 opc, "\t$dst, $src, ror $rot", []> {
722 let Inst{31-27} = 0b11111;
723 let Inst{26-23} = 0b0100;
724 let Inst{22-20} = opcod;
725 let Inst{19-16} = 0b1111; // Rn
726 let Inst{15-12} = 0b1111;
728 let Inst{5-4} = {?,?}; // rotate
732 /// T2I_bin_rrot - A binary operation with two forms: one whose operand is a
733 /// register and one whose operand is a register rotated by 8/16/24.
734 multiclass T2I_bin_rrot<bits<3> opcod, string opc, PatFrag opnode> {
735 def rr : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS), IIC_iALUr,
736 opc, "\t$dst, $LHS, $RHS",
737 [(set rGPR:$dst, (opnode rGPR:$LHS, rGPR:$RHS))]>,
738 Requires<[HasT2ExtractPack]> {
739 let Inst{31-27} = 0b11111;
740 let Inst{26-23} = 0b0100;
741 let Inst{22-20} = opcod;
742 let Inst{15-12} = 0b1111;
744 let Inst{5-4} = 0b00; // rotate
746 def rr_rot : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS, i32imm:$rot),
747 IIC_iALUsr, opc, "\t$dst, $LHS, $RHS, ror $rot",
748 [(set rGPR:$dst, (opnode rGPR:$LHS,
749 (rotr rGPR:$RHS, rot_imm:$rot)))]>,
750 Requires<[HasT2ExtractPack]> {
751 let Inst{31-27} = 0b11111;
752 let Inst{26-23} = 0b0100;
753 let Inst{22-20} = opcod;
754 let Inst{15-12} = 0b1111;
756 let Inst{5-4} = {?,?}; // rotate
760 // DO variant - disassembly only, no pattern
762 multiclass T2I_bin_rrot_DO<bits<3> opcod, string opc> {
763 def rr : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS), IIC_iALUr,
764 opc, "\t$dst, $LHS, $RHS", []> {
765 let Inst{31-27} = 0b11111;
766 let Inst{26-23} = 0b0100;
767 let Inst{22-20} = opcod;
768 let Inst{15-12} = 0b1111;
770 let Inst{5-4} = 0b00; // rotate
772 def rr_rot : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS, i32imm:$rot),
773 IIC_iALUsr, opc, "\t$dst, $LHS, $RHS, ror $rot", []> {
774 let Inst{31-27} = 0b11111;
775 let Inst{26-23} = 0b0100;
776 let Inst{22-20} = opcod;
777 let Inst{15-12} = 0b1111;
779 let Inst{5-4} = {?,?}; // rotate
783 //===----------------------------------------------------------------------===//
785 //===----------------------------------------------------------------------===//
787 //===----------------------------------------------------------------------===//
788 // Miscellaneous Instructions.
791 // LEApcrel - Load a pc-relative address into a register without offending the
793 let neverHasSideEffects = 1 in {
794 let isReMaterializable = 1 in
795 def t2LEApcrel : T2XI<(outs rGPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
796 "adr${p}.w\t$dst, #$label", []> {
797 let Inst{31-27} = 0b11110;
798 let Inst{25-24} = 0b10;
799 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
802 let Inst{19-16} = 0b1111; // Rn
805 } // neverHasSideEffects
806 def t2LEApcrelJT : T2XI<(outs rGPR:$dst),
807 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
808 "adr${p}.w\t$dst, #${label}_${id}", []> {
809 let Inst{31-27} = 0b11110;
810 let Inst{25-24} = 0b10;
811 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
814 let Inst{19-16} = 0b1111; // Rn
818 // ADD r, sp, {so_imm|i12}
819 def t2ADDrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
820 IIC_iALUi, "add", ".w\t$dst, $sp, $imm", []> {
821 let Inst{31-27} = 0b11110;
823 let Inst{24-21} = 0b1000;
824 let Inst{20} = ?; // The S bit.
825 let Inst{19-16} = 0b1101; // Rn = sp
828 def t2ADDrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
829 IIC_iALUi, "addw", "\t$dst, $sp, $imm", []> {
830 let Inst{31-27} = 0b11110;
832 let Inst{24-21} = 0b0000;
833 let Inst{20} = 0; // The S bit.
834 let Inst{19-16} = 0b1101; // Rn = sp
839 def t2ADDrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
840 IIC_iALUsi, "add", ".w\t$dst, $sp, $rhs", []> {
841 let Inst{31-27} = 0b11101;
842 let Inst{26-25} = 0b01;
843 let Inst{24-21} = 0b1000;
844 let Inst{20} = ?; // The S bit.
845 let Inst{19-16} = 0b1101; // Rn = sp
849 // SUB r, sp, {so_imm|i12}
850 def t2SUBrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
851 IIC_iALUi, "sub", ".w\t$dst, $sp, $imm", []> {
852 let Inst{31-27} = 0b11110;
854 let Inst{24-21} = 0b1101;
855 let Inst{20} = ?; // The S bit.
856 let Inst{19-16} = 0b1101; // Rn = sp
859 def t2SUBrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
860 IIC_iALUi, "subw", "\t$dst, $sp, $imm", []> {
861 let Inst{31-27} = 0b11110;
863 let Inst{24-21} = 0b0101;
864 let Inst{20} = 0; // The S bit.
865 let Inst{19-16} = 0b1101; // Rn = sp
870 def t2SUBrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
872 "sub", "\t$dst, $sp, $rhs", []> {
873 let Inst{31-27} = 0b11101;
874 let Inst{26-25} = 0b01;
875 let Inst{24-21} = 0b1101;
876 let Inst{20} = ?; // The S bit.
877 let Inst{19-16} = 0b1101; // Rn = sp
881 // Signed and unsigned division on v7-M
882 def t2SDIV : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iALUi,
883 "sdiv", "\t$dst, $a, $b",
884 [(set rGPR:$dst, (sdiv rGPR:$a, rGPR:$b))]>,
885 Requires<[HasDivide]> {
886 let Inst{31-27} = 0b11111;
887 let Inst{26-21} = 0b011100;
889 let Inst{15-12} = 0b1111;
890 let Inst{7-4} = 0b1111;
893 def t2UDIV : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iALUi,
894 "udiv", "\t$dst, $a, $b",
895 [(set rGPR:$dst, (udiv rGPR:$a, rGPR:$b))]>,
896 Requires<[HasDivide]> {
897 let Inst{31-27} = 0b11111;
898 let Inst{26-21} = 0b011101;
900 let Inst{15-12} = 0b1111;
901 let Inst{7-4} = 0b1111;
904 //===----------------------------------------------------------------------===//
905 // Load / store Instructions.
909 let canFoldAsLoad = 1, isReMaterializable = 1 in
910 defm t2LDR : T2I_ld<0, 0b10, "ldr", UnOpFrag<(load node:$Src)>>;
912 // Loads with zero extension
913 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", UnOpFrag<(zextloadi16 node:$Src)>>;
914 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", UnOpFrag<(zextloadi8 node:$Src)>>;
916 // Loads with sign extension
917 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", UnOpFrag<(sextloadi16 node:$Src)>>;
918 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", UnOpFrag<(sextloadi8 node:$Src)>>;
920 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
922 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
923 (ins t2addrmode_imm8s4:$addr),
924 IIC_iLoadi, "ldrd", "\t$dst1, $addr", []>;
925 def t2LDRDpci : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
926 (ins i32imm:$addr), IIC_iLoadi,
927 "ldrd", "\t$dst1, $addr", []> {
928 let Inst{19-16} = 0b1111; // Rn
930 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
932 // zextload i1 -> zextload i8
933 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
934 (t2LDRBi12 t2addrmode_imm12:$addr)>;
935 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
936 (t2LDRBi8 t2addrmode_imm8:$addr)>;
937 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
938 (t2LDRBs t2addrmode_so_reg:$addr)>;
939 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
940 (t2LDRBpci tconstpool:$addr)>;
942 // extload -> zextload
943 // FIXME: Reduce the number of patterns by legalizing extload to zextload
945 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
946 (t2LDRBi12 t2addrmode_imm12:$addr)>;
947 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
948 (t2LDRBi8 t2addrmode_imm8:$addr)>;
949 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
950 (t2LDRBs t2addrmode_so_reg:$addr)>;
951 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
952 (t2LDRBpci tconstpool:$addr)>;
954 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
955 (t2LDRBi12 t2addrmode_imm12:$addr)>;
956 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
957 (t2LDRBi8 t2addrmode_imm8:$addr)>;
958 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
959 (t2LDRBs t2addrmode_so_reg:$addr)>;
960 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
961 (t2LDRBpci tconstpool:$addr)>;
963 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
964 (t2LDRHi12 t2addrmode_imm12:$addr)>;
965 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
966 (t2LDRHi8 t2addrmode_imm8:$addr)>;
967 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
968 (t2LDRHs t2addrmode_so_reg:$addr)>;
969 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
970 (t2LDRHpci tconstpool:$addr)>;
972 // FIXME: The destination register of the loads and stores can't be PC, but
973 // can be SP. We need another regclass (similar to rGPR) to represent
974 // that. Not a pressing issue since these are selected manually,
978 let mayLoad = 1, neverHasSideEffects = 1 in {
979 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$dst, GPR:$base_wb),
980 (ins t2addrmode_imm8:$addr),
981 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
982 "ldr", "\t$dst, $addr!", "$addr.base = $base_wb",
985 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$dst, GPR:$base_wb),
986 (ins GPR:$base, t2am_imm8_offset:$offset),
987 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
988 "ldr", "\t$dst, [$base], $offset", "$base = $base_wb",
991 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
992 (ins t2addrmode_imm8:$addr),
993 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
994 "ldrb", "\t$dst, $addr!", "$addr.base = $base_wb",
996 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
997 (ins GPR:$base, t2am_imm8_offset:$offset),
998 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
999 "ldrb", "\t$dst, [$base], $offset", "$base = $base_wb",
1002 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1003 (ins t2addrmode_imm8:$addr),
1004 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1005 "ldrh", "\t$dst, $addr!", "$addr.base = $base_wb",
1007 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1008 (ins GPR:$base, t2am_imm8_offset:$offset),
1009 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1010 "ldrh", "\t$dst, [$base], $offset", "$base = $base_wb",
1013 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1014 (ins t2addrmode_imm8:$addr),
1015 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1016 "ldrsb", "\t$dst, $addr!", "$addr.base = $base_wb",
1018 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1019 (ins GPR:$base, t2am_imm8_offset:$offset),
1020 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1021 "ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb",
1024 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1025 (ins t2addrmode_imm8:$addr),
1026 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1027 "ldrsh", "\t$dst, $addr!", "$addr.base = $base_wb",
1029 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1030 (ins GPR:$base, t2am_imm8_offset:$offset),
1031 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1032 "ldrsh", "\t$dst, [$base], $offset", "$base = $base_wb",
1034 } // mayLoad = 1, neverHasSideEffects = 1
1036 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1037 // for disassembly only.
1038 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1039 class T2IldT<bit signed, bits<2> type, string opc>
1040 : T2Ii8<(outs GPR:$dst), (ins t2addrmode_imm8:$addr), IIC_iLoadi, opc,
1041 "\t$dst, $addr", []> {
1042 let Inst{31-27} = 0b11111;
1043 let Inst{26-25} = 0b00;
1044 let Inst{24} = signed;
1046 let Inst{22-21} = type;
1047 let Inst{20} = 1; // load
1049 let Inst{10-8} = 0b110; // PUW.
1052 def t2LDRT : T2IldT<0, 0b10, "ldrt">;
1053 def t2LDRBT : T2IldT<0, 0b00, "ldrbt">;
1054 def t2LDRHT : T2IldT<0, 0b01, "ldrht">;
1055 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt">;
1056 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht">;
1059 defm t2STR :T2I_st<0b10,"str", BinOpFrag<(store node:$LHS, node:$RHS)>>;
1060 defm t2STRB:T2I_st<0b00,"strb",BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1061 defm t2STRH:T2I_st<0b01,"strh",BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1064 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1065 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1066 (ins GPR:$src1, GPR:$src2, t2addrmode_imm8s4:$addr),
1067 IIC_iStorer, "strd", "\t$src1, $addr", []>;
1070 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1071 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1072 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1073 "str", "\t$src, [$base, $offset]!", "$base = $base_wb",
1075 (pre_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1077 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1078 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1079 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1080 "str", "\t$src, [$base], $offset", "$base = $base_wb",
1082 (post_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1084 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1085 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1086 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1087 "strh", "\t$src, [$base, $offset]!", "$base = $base_wb",
1089 (pre_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1091 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1092 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1093 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1094 "strh", "\t$src, [$base], $offset", "$base = $base_wb",
1096 (post_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1098 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1099 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1100 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1101 "strb", "\t$src, [$base, $offset]!", "$base = $base_wb",
1103 (pre_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1105 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1106 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1107 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1108 "strb", "\t$src, [$base], $offset", "$base = $base_wb",
1110 (post_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1112 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1114 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1115 class T2IstT<bits<2> type, string opc>
1116 : T2Ii8<(outs GPR:$src), (ins t2addrmode_imm8:$addr), IIC_iStorei, opc,
1117 "\t$src, $addr", []> {
1118 let Inst{31-27} = 0b11111;
1119 let Inst{26-25} = 0b00;
1120 let Inst{24} = 0; // not signed
1122 let Inst{22-21} = type;
1123 let Inst{20} = 0; // store
1125 let Inst{10-8} = 0b110; // PUW
1128 def t2STRT : T2IstT<0b10, "strt">;
1129 def t2STRBT : T2IstT<0b00, "strbt">;
1130 def t2STRHT : T2IstT<0b01, "strht">;
1132 // ldrd / strd pre / post variants
1133 // For disassembly only.
1135 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1136 (ins GPR:$base, t2am_imm8s4_offset:$imm), NoItinerary,
1137 "ldrd", "\t$dst1, $dst2, [$base, $imm]!", []>;
1139 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1140 (ins GPR:$base, t2am_imm8s4_offset:$imm), NoItinerary,
1141 "ldrd", "\t$dst1, $dst2, [$base], $imm", []>;
1143 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1144 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1145 NoItinerary, "strd", "\t$src1, $src2, [$base, $imm]!", []>;
1147 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1148 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1149 NoItinerary, "strd", "\t$src1, $src2, [$base], $imm", []>;
1151 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1152 // data/instruction access. These are for disassembly only.
1154 // A8.6.117, A8.6.118. Different instructions are generated for #0 and #-0.
1155 // The neg_zero operand translates -0 to -1, -1 to -2, ..., etc.
1156 multiclass T2Ipl<bit instr, bit write, string opc> {
1158 def i12 : T2I<(outs), (ins GPR:$base, i32imm:$imm), IIC_iLoadi, opc,
1159 "\t[$base, $imm]", []> {
1160 let Inst{31-25} = 0b1111100;
1161 let Inst{24} = instr;
1162 let Inst{23} = 1; // U = 1
1164 let Inst{21} = write;
1166 let Inst{15-12} = 0b1111;
1169 def i8 : T2I<(outs), (ins GPR:$base, neg_zero:$imm), IIC_iLoadi, opc,
1170 "\t[$base, $imm]", []> {
1171 let Inst{31-25} = 0b1111100;
1172 let Inst{24} = instr;
1173 let Inst{23} = 0; // U = 0
1175 let Inst{21} = write;
1177 let Inst{15-12} = 0b1111;
1178 let Inst{11-8} = 0b1100;
1181 def pci : T2I<(outs), (ins GPR:$base, neg_zero:$imm), IIC_iLoadi, opc,
1182 "\t[pc, $imm]", []> {
1183 let Inst{31-25} = 0b1111100;
1184 let Inst{24} = instr;
1185 let Inst{23} = ?; // add = (U == 1)
1187 let Inst{21} = write;
1189 let Inst{19-16} = 0b1111; // Rn = 0b1111
1190 let Inst{15-12} = 0b1111;
1193 def r : T2I<(outs), (ins GPR:$base, GPR:$a), IIC_iLoadi, opc,
1194 "\t[$base, $a]", []> {
1195 let Inst{31-25} = 0b1111100;
1196 let Inst{24} = instr;
1197 let Inst{23} = 0; // add = TRUE for T1
1199 let Inst{21} = write;
1201 let Inst{15-12} = 0b1111;
1202 let Inst{11-6} = 0000000;
1203 let Inst{5-4} = 0b00; // no shift is applied
1206 def s : T2I<(outs), (ins GPR:$base, GPR:$a, i32imm:$shamt), IIC_iLoadi, opc,
1207 "\t[$base, $a, lsl $shamt]", []> {
1208 let Inst{31-25} = 0b1111100;
1209 let Inst{24} = instr;
1210 let Inst{23} = 0; // add = TRUE for T1
1212 let Inst{21} = write;
1214 let Inst{15-12} = 0b1111;
1215 let Inst{11-6} = 0000000;
1219 defm t2PLD : T2Ipl<0, 0, "pld">;
1220 defm t2PLDW : T2Ipl<0, 1, "pldw">;
1221 defm t2PLI : T2Ipl<1, 0, "pli">;
1223 //===----------------------------------------------------------------------===//
1224 // Load / store multiple Instructions.
1227 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1228 def t2LDM : T2XI<(outs), (ins addrmode4:$addr, pred:$p,
1229 reglist:$dsts, variable_ops), IIC_iLoadm,
1230 "ldm${addr:submode}${p}${addr:wide}\t$addr, $dsts", []> {
1231 let Inst{31-27} = 0b11101;
1232 let Inst{26-25} = 0b00;
1233 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1235 let Inst{21} = 0; // The W bit.
1236 let Inst{20} = 1; // Load
1239 def t2LDM_UPD : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
1240 reglist:$dsts, variable_ops), IIC_iLoadm,
1241 "ldm${addr:submode}${p}${addr:wide}\t$addr!, $dsts",
1242 "$addr.addr = $wb", []> {
1243 let Inst{31-27} = 0b11101;
1244 let Inst{26-25} = 0b00;
1245 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1247 let Inst{21} = 1; // The W bit.
1248 let Inst{20} = 1; // Load
1250 } // mayLoad, neverHasSideEffects, hasExtraDefRegAllocReq
1252 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in {
1253 def t2STM : T2XI<(outs), (ins addrmode4:$addr, pred:$p,
1254 reglist:$srcs, variable_ops), IIC_iStorem,
1255 "stm${addr:submode}${p}${addr:wide}\t$addr, $srcs", []> {
1256 let Inst{31-27} = 0b11101;
1257 let Inst{26-25} = 0b00;
1258 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1260 let Inst{21} = 0; // The W bit.
1261 let Inst{20} = 0; // Store
1264 def t2STM_UPD : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
1265 reglist:$srcs, variable_ops),
1267 "stm${addr:submode}${p}${addr:wide}\t$addr!, $srcs",
1268 "$addr.addr = $wb", []> {
1269 let Inst{31-27} = 0b11101;
1270 let Inst{26-25} = 0b00;
1271 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1273 let Inst{21} = 1; // The W bit.
1274 let Inst{20} = 0; // Store
1276 } // mayStore, neverHasSideEffects, hasExtraSrcRegAllocReq
1278 //===----------------------------------------------------------------------===//
1279 // Move Instructions.
1282 let neverHasSideEffects = 1 in
1283 def t2MOVr : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
1284 "mov", ".w\t$dst, $src", []> {
1285 let Inst{31-27} = 0b11101;
1286 let Inst{26-25} = 0b01;
1287 let Inst{24-21} = 0b0010;
1288 let Inst{20} = ?; // The S bit.
1289 let Inst{19-16} = 0b1111; // Rn
1290 let Inst{14-12} = 0b000;
1291 let Inst{7-4} = 0b0000;
1294 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1295 let isReMaterializable = 1, isAsCheapAsAMove = 1, AddedComplexity = 1 in
1296 def t2MOVi : T2sI<(outs rGPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
1297 "mov", ".w\t$dst, $src",
1298 [(set rGPR:$dst, t2_so_imm:$src)]> {
1299 let Inst{31-27} = 0b11110;
1301 let Inst{24-21} = 0b0010;
1302 let Inst{20} = ?; // The S bit.
1303 let Inst{19-16} = 0b1111; // Rn
1307 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
1308 def t2MOVi16 : T2I<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVi,
1309 "movw", "\t$dst, $src",
1310 [(set rGPR:$dst, imm0_65535:$src)]> {
1311 let Inst{31-27} = 0b11110;
1313 let Inst{24-21} = 0b0010;
1314 let Inst{20} = 0; // The S bit.
1318 let Constraints = "$src = $dst" in
1319 def t2MOVTi16 : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1320 "movt", "\t$dst, $imm",
1322 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1323 let Inst{31-27} = 0b11110;
1325 let Inst{24-21} = 0b0110;
1326 let Inst{20} = 0; // The S bit.
1330 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1332 //===----------------------------------------------------------------------===//
1333 // Extend Instructions.
1338 defm t2SXTB : T2I_unary_rrot<0b100, "sxtb",
1339 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1340 defm t2SXTH : T2I_unary_rrot<0b000, "sxth",
1341 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1342 defm t2SXTB16 : T2I_unary_rrot_sxtb16<0b010, "sxtb16">;
1344 defm t2SXTAB : T2I_bin_rrot<0b100, "sxtab",
1345 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1346 defm t2SXTAH : T2I_bin_rrot<0b000, "sxtah",
1347 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1348 defm t2SXTAB16 : T2I_bin_rrot_DO<0b010, "sxtab16">;
1350 // TODO: SXT(A){B|H}16 - done for disassembly only
1354 let AddedComplexity = 16 in {
1355 defm t2UXTB : T2I_unary_rrot<0b101, "uxtb",
1356 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1357 defm t2UXTH : T2I_unary_rrot<0b001, "uxth",
1358 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1359 defm t2UXTB16 : T2I_unary_rrot_uxtb16<0b011, "uxtb16",
1360 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1362 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1363 // The transformation should probably be done as a combiner action
1364 // instead so we can include a check for masking back in the upper
1365 // eight bits of the source into the lower eight bits of the result.
1366 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1367 // (t2UXTB16r_rot rGPR:$Src, 24)>, Requires<[HasT2ExtractPack]>;
1368 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1369 (t2UXTB16r_rot rGPR:$Src, 8)>, Requires<[HasT2ExtractPack]>;
1371 defm t2UXTAB : T2I_bin_rrot<0b101, "uxtab",
1372 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1373 defm t2UXTAH : T2I_bin_rrot<0b001, "uxtah",
1374 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1375 defm t2UXTAB16 : T2I_bin_rrot_DO<0b011, "uxtab16">;
1378 //===----------------------------------------------------------------------===//
1379 // Arithmetic Instructions.
1382 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1383 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1384 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1385 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1387 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1388 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1389 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1390 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1391 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1393 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1394 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1395 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1396 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1397 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1398 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1399 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1400 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1403 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1404 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1405 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1406 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1408 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1409 // The assume-no-carry-in form uses the negation of the input since add/sub
1410 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1411 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1413 // The AddedComplexity preferences the first variant over the others since
1414 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1415 let AddedComplexity = 1 in
1416 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1417 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1418 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1419 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1420 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1421 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1422 let AddedComplexity = 1 in
1423 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1424 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1425 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1426 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1427 // The with-carry-in form matches bitwise not instead of the negation.
1428 // Effectively, the inverse interpretation of the carry flag already accounts
1429 // for part of the negation.
1430 let AddedComplexity = 1 in
1431 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1432 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1433 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1434 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1436 // Select Bytes -- for disassembly only
1438 def t2SEL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, "sel",
1439 "\t$dst, $a, $b", []> {
1440 let Inst{31-27} = 0b11111;
1441 let Inst{26-24} = 0b010;
1443 let Inst{22-20} = 0b010;
1444 let Inst{15-12} = 0b1111;
1446 let Inst{6-4} = 0b000;
1449 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1450 // And Miscellaneous operations -- for disassembly only
1451 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1452 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1453 : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), NoItinerary, opc,
1454 "\t$dst, $a, $b", pat> {
1455 let Inst{31-27} = 0b11111;
1456 let Inst{26-23} = 0b0101;
1457 let Inst{22-20} = op22_20;
1458 let Inst{15-12} = 0b1111;
1459 let Inst{7-4} = op7_4;
1462 // Saturating add/subtract -- for disassembly only
1464 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1465 [(set rGPR:$dst, (int_arm_qadd rGPR:$a, rGPR:$b))]>;
1466 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1467 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1468 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1469 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1470 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1471 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1472 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1473 [(set rGPR:$dst, (int_arm_qsub rGPR:$a, rGPR:$b))]>;
1474 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1475 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1476 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1477 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1478 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1479 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1480 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1481 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1483 // Signed/Unsigned add/subtract -- for disassembly only
1485 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1486 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1487 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1488 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1489 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1490 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1491 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1492 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1493 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1494 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1495 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1496 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1498 // Signed/Unsigned halving add/subtract -- for disassembly only
1500 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1501 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1502 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1503 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1504 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1505 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1506 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1507 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1508 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1509 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1510 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1511 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1513 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1515 def t2USAD8 : T2I_mac<0, 0b111, 0b0000, (outs rGPR:$dst),
1516 (ins rGPR:$a, rGPR:$b),
1517 NoItinerary, "usad8", "\t$dst, $a, $b", []> {
1518 let Inst{15-12} = 0b1111;
1520 def t2USADA8 : T2I_mac<0, 0b111, 0b0000, (outs rGPR:$dst),
1521 (ins rGPR:$a, rGPR:$b, rGPR:$acc), NoItinerary, "usada8",
1522 "\t$dst, $a, $b, $acc", []>;
1524 // Signed/Unsigned saturate -- for disassembly only
1526 def t2SSAT: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a, shift_imm:$sh),
1527 NoItinerary, "ssat", "\t$dst, $bit_pos, $a$sh",
1528 [/* For disassembly only; pattern left blank */]> {
1529 let Inst{31-27} = 0b11110;
1530 let Inst{25-22} = 0b1100;
1535 def t2SSAT16: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a), NoItinerary,
1536 "ssat16", "\t$dst, $bit_pos, $a",
1537 [/* For disassembly only; pattern left blank */]> {
1538 let Inst{31-27} = 0b11110;
1539 let Inst{25-22} = 0b1100;
1542 let Inst{21} = 1; // sh = '1'
1543 let Inst{14-12} = 0b000; // imm3 = '000'
1544 let Inst{7-6} = 0b00; // imm2 = '00'
1547 def t2USAT: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a, shift_imm:$sh),
1548 NoItinerary, "usat", "\t$dst, $bit_pos, $a$sh",
1549 [/* For disassembly only; pattern left blank */]> {
1550 let Inst{31-27} = 0b11110;
1551 let Inst{25-22} = 0b1110;
1556 def t2USAT16: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a), NoItinerary,
1557 "usat16", "\t$dst, $bit_pos, $a",
1558 [/* For disassembly only; pattern left blank */]> {
1559 let Inst{31-27} = 0b11110;
1560 let Inst{25-22} = 0b1110;
1563 let Inst{21} = 1; // sh = '1'
1564 let Inst{14-12} = 0b000; // imm3 = '000'
1565 let Inst{7-6} = 0b00; // imm2 = '00'
1568 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
1569 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
1571 //===----------------------------------------------------------------------===//
1572 // Shift and rotate Instructions.
1575 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
1576 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
1577 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
1578 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
1580 let Uses = [CPSR] in {
1581 def t2MOVrx : T2sI<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1582 "rrx", "\t$dst, $src",
1583 [(set rGPR:$dst, (ARMrrx rGPR:$src))]> {
1584 let Inst{31-27} = 0b11101;
1585 let Inst{26-25} = 0b01;
1586 let Inst{24-21} = 0b0010;
1587 let Inst{20} = ?; // The S bit.
1588 let Inst{19-16} = 0b1111; // Rn
1589 let Inst{14-12} = 0b000;
1590 let Inst{7-4} = 0b0011;
1594 let Defs = [CPSR] in {
1595 def t2MOVsrl_flag : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1596 "lsrs", ".w\t$dst, $src, #1",
1597 [(set rGPR:$dst, (ARMsrl_flag rGPR:$src))]> {
1598 let Inst{31-27} = 0b11101;
1599 let Inst{26-25} = 0b01;
1600 let Inst{24-21} = 0b0010;
1601 let Inst{20} = 1; // The S bit.
1602 let Inst{19-16} = 0b1111; // Rn
1603 let Inst{5-4} = 0b01; // Shift type.
1604 // Shift amount = Inst{14-12:7-6} = 1.
1605 let Inst{14-12} = 0b000;
1606 let Inst{7-6} = 0b01;
1608 def t2MOVsra_flag : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1609 "asrs", ".w\t$dst, $src, #1",
1610 [(set rGPR:$dst, (ARMsra_flag rGPR:$src))]> {
1611 let Inst{31-27} = 0b11101;
1612 let Inst{26-25} = 0b01;
1613 let Inst{24-21} = 0b0010;
1614 let Inst{20} = 1; // The S bit.
1615 let Inst{19-16} = 0b1111; // Rn
1616 let Inst{5-4} = 0b10; // Shift type.
1617 // Shift amount = Inst{14-12:7-6} = 1.
1618 let Inst{14-12} = 0b000;
1619 let Inst{7-6} = 0b01;
1623 //===----------------------------------------------------------------------===//
1624 // Bitwise Instructions.
1627 defm t2AND : T2I_bin_w_irs<0b0000, "and",
1628 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
1629 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
1630 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
1631 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
1632 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
1634 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
1635 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
1637 defm t2ANDS : T2I_bin_s_irs<0b0000, "and",
1638 BinOpFrag<(ARMand node:$LHS, node:$RHS)>, 1>;
1640 let Constraints = "$src = $dst" in
1641 def t2BFC : T2I<(outs rGPR:$dst), (ins rGPR:$src, bf_inv_mask_imm:$imm),
1642 IIC_iUNAsi, "bfc", "\t$dst, $imm",
1643 [(set rGPR:$dst, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
1644 let Inst{31-27} = 0b11110;
1646 let Inst{24-20} = 0b10110;
1647 let Inst{19-16} = 0b1111; // Rn
1651 def t2SBFX: T2I<(outs rGPR:$dst), (ins rGPR:$src, imm0_31:$lsb, imm0_31:$width),
1652 IIC_iALUi, "sbfx", "\t$dst, $src, $lsb, $width", []> {
1653 let Inst{31-27} = 0b11110;
1655 let Inst{24-20} = 0b10100;
1659 def t2UBFX: T2I<(outs rGPR:$dst), (ins rGPR:$src, imm0_31:$lsb, imm0_31:$width),
1660 IIC_iALUi, "ubfx", "\t$dst, $src, $lsb, $width", []> {
1661 let Inst{31-27} = 0b11110;
1663 let Inst{24-20} = 0b11100;
1667 // A8.6.18 BFI - Bitfield insert (Encoding T1)
1668 let Constraints = "$src = $dst" in
1669 def t2BFI : T2I<(outs rGPR:$dst),
1670 (ins rGPR:$src, rGPR:$val, bf_inv_mask_imm:$imm),
1671 IIC_iALUi, "bfi", "\t$dst, $val, $imm",
1672 [(set rGPR:$dst, (ARMbfi rGPR:$src, rGPR:$val,
1673 bf_inv_mask_imm:$imm))]> {
1674 let Inst{31-27} = 0b11110;
1676 let Inst{24-20} = 0b10110;
1680 defm t2ORN : T2I_bin_irs<0b0011, "orn", BinOpFrag<(or node:$LHS,
1681 (not node:$RHS))>, 0, "">;
1683 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
1684 let AddedComplexity = 1 in
1685 defm t2MVN : T2I_un_irs <0b0011, "mvn", UnOpFrag<(not node:$Src)>, 1, 1>;
1688 let AddedComplexity = 1 in
1689 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
1690 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
1692 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
1693 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
1694 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
1695 Requires<[IsThumb2]>;
1697 def : T2Pat<(t2_so_imm_not:$src),
1698 (t2MVNi t2_so_imm_not:$src)>;
1700 //===----------------------------------------------------------------------===//
1701 // Multiply Instructions.
1703 let isCommutable = 1 in
1704 def t2MUL: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1705 "mul", "\t$dst, $a, $b",
1706 [(set rGPR:$dst, (mul rGPR:$a, rGPR:$b))]> {
1707 let Inst{31-27} = 0b11111;
1708 let Inst{26-23} = 0b0110;
1709 let Inst{22-20} = 0b000;
1710 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1711 let Inst{7-4} = 0b0000; // Multiply
1714 def t2MLA: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1715 "mla", "\t$dst, $a, $b, $c",
1716 [(set rGPR:$dst, (add (mul rGPR:$a, rGPR:$b), rGPR:$c))]> {
1717 let Inst{31-27} = 0b11111;
1718 let Inst{26-23} = 0b0110;
1719 let Inst{22-20} = 0b000;
1720 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1721 let Inst{7-4} = 0b0000; // Multiply
1724 def t2MLS: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1725 "mls", "\t$dst, $a, $b, $c",
1726 [(set rGPR:$dst, (sub rGPR:$c, (mul rGPR:$a, rGPR:$b)))]> {
1727 let Inst{31-27} = 0b11111;
1728 let Inst{26-23} = 0b0110;
1729 let Inst{22-20} = 0b000;
1730 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1731 let Inst{7-4} = 0b0001; // Multiply and Subtract
1734 // Extra precision multiplies with low / high results
1735 let neverHasSideEffects = 1 in {
1736 let isCommutable = 1 in {
1737 def t2SMULL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1738 (ins rGPR:$a, rGPR:$b), IIC_iMUL64,
1739 "smull", "\t$ldst, $hdst, $a, $b", []> {
1740 let Inst{31-27} = 0b11111;
1741 let Inst{26-23} = 0b0111;
1742 let Inst{22-20} = 0b000;
1743 let Inst{7-4} = 0b0000;
1746 def t2UMULL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1747 (ins rGPR:$a, rGPR:$b), IIC_iMUL64,
1748 "umull", "\t$ldst, $hdst, $a, $b", []> {
1749 let Inst{31-27} = 0b11111;
1750 let Inst{26-23} = 0b0111;
1751 let Inst{22-20} = 0b010;
1752 let Inst{7-4} = 0b0000;
1756 // Multiply + accumulate
1757 def t2SMLAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1758 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1759 "smlal", "\t$ldst, $hdst, $a, $b", []>{
1760 let Inst{31-27} = 0b11111;
1761 let Inst{26-23} = 0b0111;
1762 let Inst{22-20} = 0b100;
1763 let Inst{7-4} = 0b0000;
1766 def t2UMLAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1767 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1768 "umlal", "\t$ldst, $hdst, $a, $b", []>{
1769 let Inst{31-27} = 0b11111;
1770 let Inst{26-23} = 0b0111;
1771 let Inst{22-20} = 0b110;
1772 let Inst{7-4} = 0b0000;
1775 def t2UMAAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1776 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1777 "umaal", "\t$ldst, $hdst, $a, $b", []>{
1778 let Inst{31-27} = 0b11111;
1779 let Inst{26-23} = 0b0111;
1780 let Inst{22-20} = 0b110;
1781 let Inst{7-4} = 0b0110;
1783 } // neverHasSideEffects
1785 // Rounding variants of the below included for disassembly only
1787 // Most significant word multiply
1788 def t2SMMUL : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1789 "smmul", "\t$dst, $a, $b",
1790 [(set rGPR:$dst, (mulhs rGPR:$a, rGPR:$b))]> {
1791 let Inst{31-27} = 0b11111;
1792 let Inst{26-23} = 0b0110;
1793 let Inst{22-20} = 0b101;
1794 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1795 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1798 def t2SMMULR : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1799 "smmulr", "\t$dst, $a, $b", []> {
1800 let Inst{31-27} = 0b11111;
1801 let Inst{26-23} = 0b0110;
1802 let Inst{22-20} = 0b101;
1803 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1804 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1807 def t2SMMLA : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1808 "smmla", "\t$dst, $a, $b, $c",
1809 [(set rGPR:$dst, (add (mulhs rGPR:$a, rGPR:$b), rGPR:$c))]> {
1810 let Inst{31-27} = 0b11111;
1811 let Inst{26-23} = 0b0110;
1812 let Inst{22-20} = 0b101;
1813 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1814 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1817 def t2SMMLAR: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1818 "smmlar", "\t$dst, $a, $b, $c", []> {
1819 let Inst{31-27} = 0b11111;
1820 let Inst{26-23} = 0b0110;
1821 let Inst{22-20} = 0b101;
1822 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1823 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1826 def t2SMMLS: T2I <(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1827 "smmls", "\t$dst, $a, $b, $c",
1828 [(set rGPR:$dst, (sub rGPR:$c, (mulhs rGPR:$a, rGPR:$b)))]> {
1829 let Inst{31-27} = 0b11111;
1830 let Inst{26-23} = 0b0110;
1831 let Inst{22-20} = 0b110;
1832 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1833 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1836 def t2SMMLSR:T2I <(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1837 "smmlsr", "\t$dst, $a, $b, $c", []> {
1838 let Inst{31-27} = 0b11111;
1839 let Inst{26-23} = 0b0110;
1840 let Inst{22-20} = 0b110;
1841 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1842 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1845 multiclass T2I_smul<string opc, PatFrag opnode> {
1846 def BB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1847 !strconcat(opc, "bb"), "\t$dst, $a, $b",
1848 [(set rGPR:$dst, (opnode (sext_inreg rGPR:$a, i16),
1849 (sext_inreg rGPR:$b, i16)))]> {
1850 let Inst{31-27} = 0b11111;
1851 let Inst{26-23} = 0b0110;
1852 let Inst{22-20} = 0b001;
1853 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1854 let Inst{7-6} = 0b00;
1855 let Inst{5-4} = 0b00;
1858 def BT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1859 !strconcat(opc, "bt"), "\t$dst, $a, $b",
1860 [(set rGPR:$dst, (opnode (sext_inreg rGPR:$a, i16),
1861 (sra rGPR:$b, (i32 16))))]> {
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} = 0b01;
1870 def TB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1871 !strconcat(opc, "tb"), "\t$dst, $a, $b",
1872 [(set rGPR:$dst, (opnode (sra rGPR:$a, (i32 16)),
1873 (sext_inreg rGPR:$b, i16)))]> {
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} = 0b10;
1882 def TT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1883 !strconcat(opc, "tt"), "\t$dst, $a, $b",
1884 [(set rGPR:$dst, (opnode (sra rGPR:$a, (i32 16)),
1885 (sra rGPR:$b, (i32 16))))]> {
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} = 0b11;
1894 def WB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1895 !strconcat(opc, "wb"), "\t$dst, $a, $b",
1896 [(set rGPR:$dst, (sra (opnode rGPR:$a,
1897 (sext_inreg rGPR:$b, i16)), (i32 16)))]> {
1898 let Inst{31-27} = 0b11111;
1899 let Inst{26-23} = 0b0110;
1900 let Inst{22-20} = 0b011;
1901 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1902 let Inst{7-6} = 0b00;
1903 let Inst{5-4} = 0b00;
1906 def WT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1907 !strconcat(opc, "wt"), "\t$dst, $a, $b",
1908 [(set rGPR:$dst, (sra (opnode rGPR:$a,
1909 (sra rGPR:$b, (i32 16))), (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} = 0b01;
1920 multiclass T2I_smla<string opc, PatFrag opnode> {
1921 def BB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1922 !strconcat(opc, "bb"), "\t$dst, $a, $b, $acc",
1923 [(set rGPR:$dst, (add rGPR:$acc,
1924 (opnode (sext_inreg rGPR:$a, i16),
1925 (sext_inreg rGPR:$b, i16))))]> {
1926 let Inst{31-27} = 0b11111;
1927 let Inst{26-23} = 0b0110;
1928 let Inst{22-20} = 0b001;
1929 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1930 let Inst{7-6} = 0b00;
1931 let Inst{5-4} = 0b00;
1934 def BT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1935 !strconcat(opc, "bt"), "\t$dst, $a, $b, $acc",
1936 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sext_inreg rGPR:$a, i16),
1937 (sra rGPR:$b, (i32 16)))))]> {
1938 let Inst{31-27} = 0b11111;
1939 let Inst{26-23} = 0b0110;
1940 let Inst{22-20} = 0b001;
1941 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1942 let Inst{7-6} = 0b00;
1943 let Inst{5-4} = 0b01;
1946 def TB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1947 !strconcat(opc, "tb"), "\t$dst, $a, $b, $acc",
1948 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sra rGPR:$a, (i32 16)),
1949 (sext_inreg rGPR:$b, i16))))]> {
1950 let Inst{31-27} = 0b11111;
1951 let Inst{26-23} = 0b0110;
1952 let Inst{22-20} = 0b001;
1953 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1954 let Inst{7-6} = 0b00;
1955 let Inst{5-4} = 0b10;
1958 def TT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1959 !strconcat(opc, "tt"), "\t$dst, $a, $b, $acc",
1960 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sra rGPR:$a, (i32 16)),
1961 (sra rGPR:$b, (i32 16)))))]> {
1962 let Inst{31-27} = 0b11111;
1963 let Inst{26-23} = 0b0110;
1964 let Inst{22-20} = 0b001;
1965 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1966 let Inst{7-6} = 0b00;
1967 let Inst{5-4} = 0b11;
1970 def WB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1971 !strconcat(opc, "wb"), "\t$dst, $a, $b, $acc",
1972 [(set rGPR:$dst, (add rGPR:$acc, (sra (opnode rGPR:$a,
1973 (sext_inreg rGPR:$b, i16)), (i32 16))))]> {
1974 let Inst{31-27} = 0b11111;
1975 let Inst{26-23} = 0b0110;
1976 let Inst{22-20} = 0b011;
1977 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1978 let Inst{7-6} = 0b00;
1979 let Inst{5-4} = 0b00;
1982 def WT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1983 !strconcat(opc, "wt"), "\t$dst, $a, $b, $acc",
1984 [(set rGPR:$dst, (add rGPR:$acc, (sra (opnode rGPR:$a,
1985 (sra rGPR:$b, (i32 16))), (i32 16))))]> {
1986 let Inst{31-27} = 0b11111;
1987 let Inst{26-23} = 0b0110;
1988 let Inst{22-20} = 0b011;
1989 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1990 let Inst{7-6} = 0b00;
1991 let Inst{5-4} = 0b01;
1995 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
1996 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
1998 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
1999 def t2SMLALBB : T2I_mac<1, 0b100, 0b1000, (outs rGPR:$ldst,rGPR:$hdst),
2000 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlalbb", "\t$ldst, $hdst, $a, $b",
2001 [/* For disassembly only; pattern left blank */]>;
2002 def t2SMLALBT : T2I_mac<1, 0b100, 0b1001, (outs rGPR:$ldst,rGPR:$hdst),
2003 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlalbt", "\t$ldst, $hdst, $a, $b",
2004 [/* For disassembly only; pattern left blank */]>;
2005 def t2SMLALTB : T2I_mac<1, 0b100, 0b1010, (outs rGPR:$ldst,rGPR:$hdst),
2006 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaltb", "\t$ldst, $hdst, $a, $b",
2007 [/* For disassembly only; pattern left blank */]>;
2008 def t2SMLALTT : T2I_mac<1, 0b100, 0b1011, (outs rGPR:$ldst,rGPR:$hdst),
2009 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaltt", "\t$ldst, $hdst, $a, $b",
2010 [/* For disassembly only; pattern left blank */]>;
2012 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2013 // These are for disassembly only.
2015 def t2SMUAD: T2I_mac<0, 0b010, 0b0000, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2016 IIC_iMAC32, "smuad", "\t$dst, $a, $b", []> {
2017 let Inst{15-12} = 0b1111;
2019 def t2SMUADX:T2I_mac<0, 0b010, 0b0001, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2020 IIC_iMAC32, "smuadx", "\t$dst, $a, $b", []> {
2021 let Inst{15-12} = 0b1111;
2023 def t2SMUSD: T2I_mac<0, 0b100, 0b0000, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2024 IIC_iMAC32, "smusd", "\t$dst, $a, $b", []> {
2025 let Inst{15-12} = 0b1111;
2027 def t2SMUSDX:T2I_mac<0, 0b100, 0b0001, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2028 IIC_iMAC32, "smusdx", "\t$dst, $a, $b", []> {
2029 let Inst{15-12} = 0b1111;
2031 def t2SMLAD : T2I_mac<0, 0b010, 0b0000, (outs rGPR:$dst),
2032 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlad",
2033 "\t$dst, $a, $b, $acc", []>;
2034 def t2SMLADX : T2I_mac<0, 0b010, 0b0001, (outs rGPR:$dst),
2035 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smladx",
2036 "\t$dst, $a, $b, $acc", []>;
2037 def t2SMLSD : T2I_mac<0, 0b100, 0b0000, (outs rGPR:$dst),
2038 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlsd",
2039 "\t$dst, $a, $b, $acc", []>;
2040 def t2SMLSDX : T2I_mac<0, 0b100, 0b0001, (outs rGPR:$dst),
2041 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlsdx",
2042 "\t$dst, $a, $b, $acc", []>;
2043 def t2SMLALD : T2I_mac<1, 0b100, 0b1100, (outs rGPR:$ldst,rGPR:$hdst),
2044 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlald",
2045 "\t$ldst, $hdst, $a, $b", []>;
2046 def t2SMLALDX : T2I_mac<1, 0b100, 0b1101, (outs rGPR:$ldst,rGPR:$hdst),
2047 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaldx",
2048 "\t$ldst, $hdst, $a, $b", []>;
2049 def t2SMLSLD : T2I_mac<1, 0b101, 0b1100, (outs rGPR:$ldst,rGPR:$hdst),
2050 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlsld",
2051 "\t$ldst, $hdst, $a, $b", []>;
2052 def t2SMLSLDX : T2I_mac<1, 0b101, 0b1101, (outs rGPR:$ldst,rGPR:$hdst),
2053 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlsldx",
2054 "\t$ldst, $hdst, $a, $b", []>;
2056 //===----------------------------------------------------------------------===//
2057 // Misc. Arithmetic Instructions.
2060 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2061 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2062 : T2I<oops, iops, itin, opc, asm, pattern> {
2063 let Inst{31-27} = 0b11111;
2064 let Inst{26-22} = 0b01010;
2065 let Inst{21-20} = op1;
2066 let Inst{15-12} = 0b1111;
2067 let Inst{7-6} = 0b10;
2068 let Inst{5-4} = op2;
2071 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2072 "clz", "\t$dst, $src", [(set rGPR:$dst, (ctlz rGPR:$src))]>;
2074 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2075 "rbit", "\t$dst, $src",
2076 [(set rGPR:$dst, (ARMrbit rGPR:$src))]>;
2078 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2079 "rev", ".w\t$dst, $src", [(set rGPR:$dst, (bswap rGPR:$src))]>;
2081 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2082 "rev16", ".w\t$dst, $src",
2084 (or (and (srl rGPR:$src, (i32 8)), 0xFF),
2085 (or (and (shl rGPR:$src, (i32 8)), 0xFF00),
2086 (or (and (srl rGPR:$src, (i32 8)), 0xFF0000),
2087 (and (shl rGPR:$src, (i32 8)), 0xFF000000)))))]>;
2089 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2090 "revsh", ".w\t$dst, $src",
2093 (or (srl (and rGPR:$src, 0xFF00), (i32 8)),
2094 (shl rGPR:$src, (i32 8))), i16))]>;
2096 def t2PKHBT : T2I<(outs rGPR:$dst), (ins rGPR:$src1, rGPR:$src2, shift_imm:$sh),
2097 IIC_iALUsi, "pkhbt", "\t$dst, $src1, $src2$sh",
2098 [(set rGPR:$dst, (or (and rGPR:$src1, 0xFFFF),
2099 (and (shl rGPR:$src2, lsl_amt:$sh),
2101 Requires<[HasT2ExtractPack]> {
2102 let Inst{31-27} = 0b11101;
2103 let Inst{26-25} = 0b01;
2104 let Inst{24-20} = 0b01100;
2105 let Inst{5} = 0; // BT form
2109 // Alternate cases for PKHBT where identities eliminate some nodes.
2110 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2111 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2112 Requires<[HasT2ExtractPack]>;
2113 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2114 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2115 Requires<[HasT2ExtractPack]>;
2117 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2118 // will match the pattern below.
2119 def t2PKHTB : T2I<(outs rGPR:$dst), (ins rGPR:$src1, rGPR:$src2, shift_imm:$sh),
2120 IIC_iALUsi, "pkhtb", "\t$dst, $src1, $src2$sh",
2121 [(set rGPR:$dst, (or (and rGPR:$src1, 0xFFFF0000),
2122 (and (sra rGPR:$src2, asr_amt:$sh),
2124 Requires<[HasT2ExtractPack]> {
2125 let Inst{31-27} = 0b11101;
2126 let Inst{26-25} = 0b01;
2127 let Inst{24-20} = 0b01100;
2128 let Inst{5} = 1; // TB form
2132 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2133 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2134 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2135 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2136 Requires<[HasT2ExtractPack]>;
2137 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2138 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2139 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2140 Requires<[HasT2ExtractPack]>;
2142 //===----------------------------------------------------------------------===//
2143 // Comparison Instructions...
2145 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2146 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2147 defm t2CMPz : T2I_cmp_irs<0b1101, "cmp",
2148 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
2150 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2151 // Compare-to-zero still works out, just not the relationals
2152 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2153 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2154 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2155 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2157 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2158 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2160 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2161 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2163 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2164 BinOpFrag<(ARMcmpZ (and node:$LHS, node:$RHS), 0)>>;
2165 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2166 BinOpFrag<(ARMcmpZ (xor node:$LHS, node:$RHS), 0)>>;
2168 // Conditional moves
2169 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2170 // a two-value operand where a dag node expects two operands. :(
2171 let neverHasSideEffects = 1 in {
2172 def t2MOVCCr : T2I<(outs rGPR:$dst), (ins rGPR:$false, rGPR:$true), IIC_iCMOVr,
2173 "mov", ".w\t$dst, $true",
2174 [/*(set rGPR:$dst, (ARMcmov rGPR:$false, rGPR:$true, imm:$cc, CCR:$ccr))*/]>,
2175 RegConstraint<"$false = $dst"> {
2176 let Inst{31-27} = 0b11101;
2177 let Inst{26-25} = 0b01;
2178 let Inst{24-21} = 0b0010;
2179 let Inst{20} = 0; // The S bit.
2180 let Inst{19-16} = 0b1111; // Rn
2181 let Inst{14-12} = 0b000;
2182 let Inst{7-4} = 0b0000;
2185 def t2MOVCCi : T2I<(outs rGPR:$dst), (ins rGPR:$false, t2_so_imm:$true),
2186 IIC_iCMOVi, "mov", ".w\t$dst, $true",
2187 [/*(set rGPR:$dst,(ARMcmov rGPR:$false,t2_so_imm:$true, imm:$cc, CCR:$ccr))*/]>,
2188 RegConstraint<"$false = $dst"> {
2189 let Inst{31-27} = 0b11110;
2191 let Inst{24-21} = 0b0010;
2192 let Inst{20} = 0; // The S bit.
2193 let Inst{19-16} = 0b1111; // Rn
2197 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2198 string opc, string asm, list<dag> pattern>
2199 : T2I<oops, iops, itin, opc, asm, pattern> {
2200 let Inst{31-27} = 0b11101;
2201 let Inst{26-25} = 0b01;
2202 let Inst{24-21} = 0b0010;
2203 let Inst{20} = 0; // The S bit.
2204 let Inst{19-16} = 0b1111; // Rn
2205 let Inst{5-4} = opcod; // Shift type.
2207 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$dst),
2208 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2209 IIC_iCMOVsi, "lsl", ".w\t$dst, $true, $rhs", []>,
2210 RegConstraint<"$false = $dst">;
2211 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$dst),
2212 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2213 IIC_iCMOVsi, "lsr", ".w\t$dst, $true, $rhs", []>,
2214 RegConstraint<"$false = $dst">;
2215 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$dst),
2216 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2217 IIC_iCMOVsi, "asr", ".w\t$dst, $true, $rhs", []>,
2218 RegConstraint<"$false = $dst">;
2219 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$dst),
2220 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2221 IIC_iCMOVsi, "ror", ".w\t$dst, $true, $rhs", []>,
2222 RegConstraint<"$false = $dst">;
2223 } // neverHasSideEffects
2225 //===----------------------------------------------------------------------===//
2226 // Atomic operations intrinsics
2229 // memory barriers protect the atomic sequences
2230 let hasSideEffects = 1 in {
2231 def t2DMBsy : AInoP<(outs), (ins), ThumbFrm, NoItinerary, "dmb", "",
2232 [(ARMMemBarrier)]>, Requires<[IsThumb, HasDB]> {
2233 let Inst{31-4} = 0xF3BF8F5;
2234 // FIXME: add support for options other than a full system DMB
2235 let Inst{3-0} = 0b1111;
2238 def t2DSBsy : AInoP<(outs), (ins), ThumbFrm, NoItinerary, "dsb", "",
2239 [(ARMSyncBarrier)]>, Requires<[IsThumb, HasDB]> {
2240 let Inst{31-4} = 0xF3BF8F4;
2241 // FIXME: add support for options other than a full system DSB
2242 let Inst{3-0} = 0b1111;
2246 // Helper class for multiclass T2MemB -- for disassembly only
2247 class T2I_memb<string opc, string asm>
2248 : T2I<(outs), (ins), NoItinerary, opc, asm,
2249 [/* For disassembly only; pattern left blank */]>,
2250 Requires<[IsThumb2, HasV7]> {
2251 let Inst{31-20} = 0xf3b;
2252 let Inst{15-14} = 0b10;
2256 multiclass T2MemB<bits<4> op7_4, string opc> {
2258 def st : T2I_memb<opc, "\tst"> {
2259 let Inst{7-4} = op7_4;
2260 let Inst{3-0} = 0b1110;
2263 def ish : T2I_memb<opc, "\tish"> {
2264 let Inst{7-4} = op7_4;
2265 let Inst{3-0} = 0b1011;
2268 def ishst : T2I_memb<opc, "\tishst"> {
2269 let Inst{7-4} = op7_4;
2270 let Inst{3-0} = 0b1010;
2273 def nsh : T2I_memb<opc, "\tnsh"> {
2274 let Inst{7-4} = op7_4;
2275 let Inst{3-0} = 0b0111;
2278 def nshst : T2I_memb<opc, "\tnshst"> {
2279 let Inst{7-4} = op7_4;
2280 let Inst{3-0} = 0b0110;
2283 def osh : T2I_memb<opc, "\tosh"> {
2284 let Inst{7-4} = op7_4;
2285 let Inst{3-0} = 0b0011;
2288 def oshst : T2I_memb<opc, "\toshst"> {
2289 let Inst{7-4} = op7_4;
2290 let Inst{3-0} = 0b0010;
2294 // These DMB variants are for disassembly only.
2295 defm t2DMB : T2MemB<0b0101, "dmb">;
2297 // These DSB variants are for disassembly only.
2298 defm t2DSB : T2MemB<0b0100, "dsb">;
2300 // ISB has only full system option -- for disassembly only
2301 def t2ISBsy : T2I_memb<"isb", ""> {
2302 let Inst{7-4} = 0b0110;
2303 let Inst{3-0} = 0b1111;
2306 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2307 InstrItinClass itin, string opc, string asm, string cstr,
2308 list<dag> pattern, bits<4> rt2 = 0b1111>
2309 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2310 let Inst{31-27} = 0b11101;
2311 let Inst{26-20} = 0b0001101;
2312 let Inst{11-8} = rt2;
2313 let Inst{7-6} = 0b01;
2314 let Inst{5-4} = opcod;
2315 let Inst{3-0} = 0b1111;
2317 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2318 InstrItinClass itin, string opc, string asm, string cstr,
2319 list<dag> pattern, bits<4> rt2 = 0b1111>
2320 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2321 let Inst{31-27} = 0b11101;
2322 let Inst{26-20} = 0b0001100;
2323 let Inst{11-8} = rt2;
2324 let Inst{7-6} = 0b01;
2325 let Inst{5-4} = opcod;
2328 let mayLoad = 1 in {
2329 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2330 Size4Bytes, NoItinerary, "ldrexb", "\t$dest, [$ptr]",
2332 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2333 Size4Bytes, NoItinerary, "ldrexh", "\t$dest, [$ptr]",
2335 def t2LDREX : Thumb2I<(outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2336 Size4Bytes, NoItinerary,
2337 "ldrex", "\t$dest, [$ptr]", "",
2339 let Inst{31-27} = 0b11101;
2340 let Inst{26-20} = 0b0000101;
2341 let Inst{11-8} = 0b1111;
2342 let Inst{7-0} = 0b00000000; // imm8 = 0
2344 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$dest, rGPR:$dest2), (ins rGPR:$ptr),
2345 AddrModeNone, Size4Bytes, NoItinerary,
2346 "ldrexd", "\t$dest, $dest2, [$ptr]", "",
2350 let mayStore = 1, Constraints = "@earlyclobber $success" in {
2351 def t2STREXB : T2I_strex<0b00, (outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2352 AddrModeNone, Size4Bytes, NoItinerary,
2353 "strexb", "\t$success, $src, [$ptr]", "", []>;
2354 def t2STREXH : T2I_strex<0b01, (outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2355 AddrModeNone, Size4Bytes, NoItinerary,
2356 "strexh", "\t$success, $src, [$ptr]", "", []>;
2357 def t2STREX : Thumb2I<(outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2358 AddrModeNone, Size4Bytes, NoItinerary,
2359 "strex", "\t$success, $src, [$ptr]", "",
2361 let Inst{31-27} = 0b11101;
2362 let Inst{26-20} = 0b0000100;
2363 let Inst{7-0} = 0b00000000; // imm8 = 0
2365 def t2STREXD : T2I_strex<0b11, (outs rGPR:$success),
2366 (ins rGPR:$src, rGPR:$src2, rGPR:$ptr),
2367 AddrModeNone, Size4Bytes, NoItinerary,
2368 "strexd", "\t$success, $src, $src2, [$ptr]", "", [],
2372 // Clear-Exclusive is for disassembly only.
2373 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2374 [/* For disassembly only; pattern left blank */]>,
2375 Requires<[IsARM, HasV7]> {
2376 let Inst{31-20} = 0xf3b;
2377 let Inst{15-14} = 0b10;
2379 let Inst{7-4} = 0b0010;
2382 //===----------------------------------------------------------------------===//
2386 // __aeabi_read_tp preserves the registers r1-r3.
2388 Defs = [R0, R12, LR, CPSR] in {
2389 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2390 "bl\t__aeabi_read_tp",
2391 [(set R0, ARMthread_pointer)]> {
2392 let Inst{31-27} = 0b11110;
2393 let Inst{15-14} = 0b11;
2398 //===----------------------------------------------------------------------===//
2399 // SJLJ Exception handling intrinsics
2400 // eh_sjlj_setjmp() is an instruction sequence to store the return
2401 // address and save #0 in R0 for the non-longjmp case.
2402 // Since by its nature we may be coming from some other function to get
2403 // here, and we're using the stack frame for the containing function to
2404 // save/restore registers, we can't keep anything live in regs across
2405 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2406 // when we get here from a longjmp(). We force everthing out of registers
2407 // except for our own input by listing the relevant registers in Defs. By
2408 // doing so, we also cause the prologue/epilogue code to actively preserve
2409 // all of the callee-saved resgisters, which is exactly what we want.
2410 // $val is a scratch register for our use.
2412 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2413 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2414 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2415 D31 ], hasSideEffects = 1, isBarrier = 1 in {
2416 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2417 AddrModeNone, SizeSpecial, NoItinerary,
2418 "mov\t$val, pc\t${:comment} begin eh.setjmp\n\t"
2419 "adds\t$val, #7\n\t"
2420 "str\t$val, [$src, #4]\n\t"
2423 "movs\tr0, #1\t${:comment} end eh.setjmp\n\t"
2425 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2426 Requires<[IsThumb2, HasVFP2]>;
2430 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2431 hasSideEffects = 1, isBarrier = 1 in {
2432 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2433 AddrModeNone, SizeSpecial, NoItinerary,
2434 "mov\t$val, pc\t${:comment} begin eh.setjmp\n\t"
2435 "adds\t$val, #7\n\t"
2436 "str\t$val, [$src, #4]\n\t"
2439 "movs\tr0, #1\t${:comment} end eh.setjmp\n\t"
2441 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2442 Requires<[IsThumb2, NoVFP]>;
2446 //===----------------------------------------------------------------------===//
2447 // Control-Flow Instructions
2450 // FIXME: remove when we have a way to marking a MI with these properties.
2451 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2453 // FIXME: Should pc be an implicit operand like PICADD, etc?
2454 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2455 hasExtraDefRegAllocReq = 1 in
2456 def t2LDM_RET : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
2457 reglist:$dsts, variable_ops),
2459 "ldm${addr:submode}${p}${addr:wide}\t$addr!, $dsts",
2460 "$addr.addr = $wb", []> {
2461 let Inst{31-27} = 0b11101;
2462 let Inst{26-25} = 0b00;
2463 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
2465 let Inst{21} = 1; // The W bit.
2466 let Inst{20} = 1; // Load
2469 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2470 let isPredicable = 1 in
2471 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2473 [(br bb:$target)]> {
2474 let Inst{31-27} = 0b11110;
2475 let Inst{15-14} = 0b10;
2479 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2482 (ins GPR:$target, GPR:$index, jt2block_operand:$jt, i32imm:$id),
2483 IIC_Br, "mov\tpc, $target$jt",
2484 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]> {
2485 let Inst{31-27} = 0b11101;
2486 let Inst{26-20} = 0b0100100;
2487 let Inst{19-16} = 0b1111;
2488 let Inst{14-12} = 0b000;
2489 let Inst{11-8} = 0b1111; // Rd = pc
2490 let Inst{7-4} = 0b0000;
2493 // FIXME: Add a non-pc based case that can be predicated.
2496 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2497 IIC_Br, "tbb\t$index$jt", []> {
2498 let Inst{31-27} = 0b11101;
2499 let Inst{26-20} = 0b0001101;
2500 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2501 let Inst{15-8} = 0b11110000;
2502 let Inst{7-4} = 0b0000; // B form
2507 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2508 IIC_Br, "tbh\t$index$jt", []> {
2509 let Inst{31-27} = 0b11101;
2510 let Inst{26-20} = 0b0001101;
2511 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2512 let Inst{15-8} = 0b11110000;
2513 let Inst{7-4} = 0b0001; // H form
2516 // Generic versions of the above two instructions, for disassembly only
2518 def t2TBBgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2519 "tbb", "\t[$a, $b]", []>{
2520 let Inst{31-27} = 0b11101;
2521 let Inst{26-20} = 0b0001101;
2522 let Inst{15-8} = 0b11110000;
2523 let Inst{7-4} = 0b0000; // B form
2526 def t2TBHgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2527 "tbh", "\t[$a, $b, lsl #1]", []> {
2528 let Inst{31-27} = 0b11101;
2529 let Inst{26-20} = 0b0001101;
2530 let Inst{15-8} = 0b11110000;
2531 let Inst{7-4} = 0b0001; // H form
2533 } // isNotDuplicable, isIndirectBranch
2535 } // isBranch, isTerminator, isBarrier
2537 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
2538 // a two-value operand where a dag node expects two operands. :(
2539 let isBranch = 1, isTerminator = 1 in
2540 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
2542 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
2543 let Inst{31-27} = 0b11110;
2544 let Inst{15-14} = 0b10;
2550 let Defs = [ITSTATE] in
2551 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
2552 AddrModeNone, Size2Bytes, IIC_iALUx,
2553 "it$mask\t$cc", "", []> {
2554 // 16-bit instruction.
2555 let Inst{31-16} = 0x0000;
2556 let Inst{15-8} = 0b10111111;
2559 // Branch and Exchange Jazelle -- for disassembly only
2561 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
2562 [/* For disassembly only; pattern left blank */]> {
2563 let Inst{31-27} = 0b11110;
2565 let Inst{25-20} = 0b111100;
2566 let Inst{15-14} = 0b10;
2570 // Change Processor State is a system instruction -- for disassembly only.
2571 // The singleton $opt operand contains the following information:
2572 // opt{4-0} = mode from Inst{4-0}
2573 // opt{5} = changemode from Inst{17}
2574 // opt{8-6} = AIF from Inst{8-6}
2575 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
2576 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
2577 [/* For disassembly only; pattern left blank */]> {
2578 let Inst{31-27} = 0b11110;
2580 let Inst{25-20} = 0b111010;
2581 let Inst{15-14} = 0b10;
2585 // A6.3.4 Branches and miscellaneous control
2586 // Table A6-14 Change Processor State, and hint instructions
2587 // Helper class for disassembly only.
2588 class T2I_hint<bits<8> op7_0, string opc, string asm>
2589 : T2I<(outs), (ins), NoItinerary, opc, asm,
2590 [/* For disassembly only; pattern left blank */]> {
2591 let Inst{31-20} = 0xf3a;
2592 let Inst{15-14} = 0b10;
2594 let Inst{10-8} = 0b000;
2595 let Inst{7-0} = op7_0;
2598 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
2599 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
2600 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
2601 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
2602 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
2604 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
2605 [/* For disassembly only; pattern left blank */]> {
2606 let Inst{31-20} = 0xf3a;
2607 let Inst{15-14} = 0b10;
2609 let Inst{10-8} = 0b000;
2610 let Inst{7-4} = 0b1111;
2613 // Secure Monitor Call is a system instruction -- for disassembly only
2614 // Option = Inst{19-16}
2615 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
2616 [/* For disassembly only; pattern left blank */]> {
2617 let Inst{31-27} = 0b11110;
2618 let Inst{26-20} = 0b1111111;
2619 let Inst{15-12} = 0b1000;
2622 // Store Return State is a system instruction -- for disassembly only
2623 def t2SRSDBW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
2624 [/* For disassembly only; pattern left blank */]> {
2625 let Inst{31-27} = 0b11101;
2626 let Inst{26-20} = 0b0000010; // W = 1
2629 def t2SRSDB : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
2630 [/* For disassembly only; pattern left blank */]> {
2631 let Inst{31-27} = 0b11101;
2632 let Inst{26-20} = 0b0000000; // W = 0
2635 def t2SRSIAW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
2636 [/* For disassembly only; pattern left blank */]> {
2637 let Inst{31-27} = 0b11101;
2638 let Inst{26-20} = 0b0011010; // W = 1
2641 def t2SRSIA : T2I<(outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
2642 [/* For disassembly only; pattern left blank */]> {
2643 let Inst{31-27} = 0b11101;
2644 let Inst{26-20} = 0b0011000; // W = 0
2647 // Return From Exception is a system instruction -- for disassembly only
2648 def t2RFEDBW : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfedb", "\t$base!",
2649 [/* For disassembly only; pattern left blank */]> {
2650 let Inst{31-27} = 0b11101;
2651 let Inst{26-20} = 0b0000011; // W = 1
2654 def t2RFEDB : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeab", "\t$base",
2655 [/* For disassembly only; pattern left blank */]> {
2656 let Inst{31-27} = 0b11101;
2657 let Inst{26-20} = 0b0000001; // W = 0
2660 def t2RFEIAW : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeia", "\t$base!",
2661 [/* For disassembly only; pattern left blank */]> {
2662 let Inst{31-27} = 0b11101;
2663 let Inst{26-20} = 0b0011011; // W = 1
2666 def t2RFEIA : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeia", "\t$base",
2667 [/* For disassembly only; pattern left blank */]> {
2668 let Inst{31-27} = 0b11101;
2669 let Inst{26-20} = 0b0011001; // W = 0
2672 //===----------------------------------------------------------------------===//
2673 // Non-Instruction Patterns
2676 // Two piece so_imms.
2677 def : T2Pat<(or rGPR:$LHS, t2_so_imm2part:$RHS),
2678 (t2ORRri (t2ORRri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2679 (t2_so_imm2part_2 imm:$RHS))>;
2680 def : T2Pat<(xor rGPR:$LHS, t2_so_imm2part:$RHS),
2681 (t2EORri (t2EORri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2682 (t2_so_imm2part_2 imm:$RHS))>;
2683 def : T2Pat<(add rGPR:$LHS, t2_so_imm2part:$RHS),
2684 (t2ADDri (t2ADDri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2685 (t2_so_imm2part_2 imm:$RHS))>;
2686 def : T2Pat<(add rGPR:$LHS, t2_so_neg_imm2part:$RHS),
2687 (t2SUBri (t2SUBri rGPR:$LHS, (t2_so_neg_imm2part_1 imm:$RHS)),
2688 (t2_so_neg_imm2part_2 imm:$RHS))>;
2690 // 32-bit immediate using movw + movt.
2691 // This is a single pseudo instruction to make it re-materializable. Remove
2692 // when we can do generalized remat.
2693 let isReMaterializable = 1 in
2694 def t2MOVi32imm : T2Ix2<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVi,
2695 "movw", "\t$dst, ${src:lo16}\n\tmovt${p}\t$dst, ${src:hi16}",
2696 [(set rGPR:$dst, (i32 imm:$src))]>;
2698 // ConstantPool, GlobalAddress, and JumpTable
2699 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
2700 Requires<[IsThumb2, DontUseMovt]>;
2701 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
2702 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
2703 Requires<[IsThumb2, UseMovt]>;
2705 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
2706 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
2708 // Pseudo instruction that combines ldr from constpool and add pc. This should
2709 // be expanded into two instructions late to allow if-conversion and
2711 let canFoldAsLoad = 1, isReMaterializable = 1 in
2712 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
2714 "${:comment} ldr.w\t$dst, $addr\n$cp:\n\tadd\t$dst, pc",
2715 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
2717 Requires<[IsThumb2]>;
2719 //===----------------------------------------------------------------------===//
2720 // Move between special register and ARM core register -- for disassembly only
2724 def t2MRS : T2I<(outs rGPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, cpsr",
2725 [/* For disassembly only; pattern left blank */]> {
2726 let Inst{31-27} = 0b11110;
2728 let Inst{25-21} = 0b11111;
2729 let Inst{20} = 0; // The R bit.
2730 let Inst{15-14} = 0b10;
2735 def t2MRSsys : T2I<(outs rGPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, spsr",
2736 [/* For disassembly only; pattern left blank */]> {
2737 let Inst{31-27} = 0b11110;
2739 let Inst{25-21} = 0b11111;
2740 let Inst{20} = 1; // The R bit.
2741 let Inst{15-14} = 0b10;
2746 def t2MSR : T2I<(outs), (ins rGPR:$src, msr_mask:$mask), NoItinerary, "msr",
2747 "\tcpsr$mask, $src",
2748 [/* For disassembly only; pattern left blank */]> {
2749 let Inst{31-27} = 0b11110;
2751 let Inst{25-21} = 0b11100;
2752 let Inst{20} = 0; // The R bit.
2753 let Inst{15-14} = 0b10;
2758 def t2MSRsys : T2I<(outs), (ins rGPR:$src, msr_mask:$mask), NoItinerary, "msr",
2759 "\tspsr$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} = 1; // The R bit.
2765 let Inst{15-14} = 0b10;