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 ComplexPattern<i32, 2, "SelectT2AddrModeImm8s4", []> {
150 let PrintMethod = "printT2AddrModeImm8s4Operand";
151 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
154 def t2am_imm8s4_offset : Operand<i32> {
155 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
158 // t2addrmode_so_reg := reg + (reg << imm2)
159 def t2addrmode_so_reg : Operand<i32>,
160 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
161 let PrintMethod = "printT2AddrModeSoRegOperand";
162 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
166 //===----------------------------------------------------------------------===//
167 // Multiclass helpers...
170 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
171 /// unary operation that produces a value. These are predicable and can be
172 /// changed to modify CPSR.
173 multiclass T2I_un_irs<bits<4> opcod, string opc, PatFrag opnode,
174 bit Cheap = 0, bit ReMat = 0> {
176 def i : T2sI<(outs rGPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
178 [(set rGPR:$dst, (opnode t2_so_imm:$src))]> {
179 let isAsCheapAsAMove = Cheap;
180 let isReMaterializable = ReMat;
181 let Inst{31-27} = 0b11110;
183 let Inst{24-21} = opcod;
184 let Inst{20} = ?; // The S bit.
185 let Inst{19-16} = 0b1111; // Rn
189 def r : T2sI<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVr,
190 opc, ".w\t$dst, $src",
191 [(set rGPR:$dst, (opnode rGPR:$src))]> {
192 let Inst{31-27} = 0b11101;
193 let Inst{26-25} = 0b01;
194 let Inst{24-21} = opcod;
195 let Inst{20} = ?; // The S bit.
196 let Inst{19-16} = 0b1111; // Rn
197 let Inst{14-12} = 0b000; // imm3
198 let Inst{7-6} = 0b00; // imm2
199 let Inst{5-4} = 0b00; // type
202 def s : T2sI<(outs rGPR:$dst), (ins t2_so_reg:$src), IIC_iMOVsi,
203 opc, ".w\t$dst, $src",
204 [(set rGPR:$dst, (opnode t2_so_reg:$src))]> {
205 let Inst{31-27} = 0b11101;
206 let Inst{26-25} = 0b01;
207 let Inst{24-21} = opcod;
208 let Inst{20} = ?; // The S bit.
209 let Inst{19-16} = 0b1111; // Rn
213 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
214 /// binary operation that produces a value. These are predicable and can be
215 /// changed to modify CPSR.
216 multiclass T2I_bin_irs<bits<4> opcod, string opc, PatFrag opnode,
217 bit Commutable = 0, string wide = "", bit SBit = 0> {
219 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
220 opc, "\t$dst, $lhs, $rhs",
221 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]> {
222 let Inst{31-27} = 0b11110;
224 let Inst{24-21} = opcod;
225 let Inst{20} = SBit; // The S bit.
229 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iALUr,
230 opc, !strconcat(wide, "\t$dst, $lhs, $rhs"),
231 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]> {
232 let isCommutable = Commutable;
233 let Inst{31-27} = 0b11101;
234 let Inst{26-25} = 0b01;
235 let Inst{24-21} = opcod;
236 let Inst{20} = SBit; // The S bit.
237 let Inst{14-12} = 0b000; // imm3
238 let Inst{7-6} = 0b00; // imm2
239 let Inst{5-4} = 0b00; // type
242 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
243 opc, !strconcat(wide, "\t$dst, $lhs, $rhs"),
244 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]> {
245 let Inst{31-27} = 0b11101;
246 let Inst{26-25} = 0b01;
247 let Inst{24-21} = opcod;
248 let Inst{20} = SBit; // The S bit.
252 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
253 // the ".w" prefix to indicate that they are wide.
254 multiclass T2I_bin_w_irs<bits<4> opcod, string opc, PatFrag opnode,
255 bit Commutable = 0> :
256 T2I_bin_irs<opcod, opc, opnode, Commutable, ".w", ?>;
258 /// T2I_bin_sw_irs - Same as T2I_bin_w_irs except these operations set
260 multiclass T2I_bin_sw_irs<bits<4> opcod, string opc, PatFrag opnode,
261 bit Commutable = 0> :
262 T2I_bin_irs<opcod, opc, opnode, Commutable, ".w", 1>;
264 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
265 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
266 /// it is equivalent to the T2I_bin_irs counterpart.
267 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
269 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_imm:$lhs), IIC_iALUi,
270 opc, ".w\t$dst, $rhs, $lhs",
271 [(set rGPR:$dst, (opnode t2_so_imm:$lhs, rGPR:$rhs))]> {
272 let Inst{31-27} = 0b11110;
274 let Inst{24-21} = opcod;
275 let Inst{20} = ?; // The S bit.
279 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$rhs, rGPR:$lhs), IIC_iALUr,
280 opc, "\t$dst, $rhs, $lhs",
281 [/* For disassembly only; pattern left blank */]> {
282 let Inst{31-27} = 0b11101;
283 let Inst{26-25} = 0b01;
284 let Inst{24-21} = opcod;
285 let Inst{20} = ?; // The S bit.
286 let Inst{14-12} = 0b000; // imm3
287 let Inst{7-6} = 0b00; // imm2
288 let Inst{5-4} = 0b00; // type
291 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_reg:$lhs), IIC_iALUsi,
292 opc, "\t$dst, $rhs, $lhs",
293 [(set rGPR:$dst, (opnode t2_so_reg:$lhs, rGPR:$rhs))]> {
294 let Inst{31-27} = 0b11101;
295 let Inst{26-25} = 0b01;
296 let Inst{24-21} = opcod;
297 let Inst{20} = ?; // The S bit.
301 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
302 /// instruction modifies the CPSR register.
303 let Defs = [CPSR] in {
304 multiclass T2I_bin_s_irs<bits<4> opcod, string opc, PatFrag opnode,
305 bit Commutable = 0> {
307 def ri : T2I<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
308 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
309 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
310 let Inst{31-27} = 0b11110;
312 let Inst{24-21} = opcod;
313 let Inst{20} = 1; // The S bit.
317 def rr : T2I<(outs rGPR:$dst), (ins GPR:$lhs, rGPR:$rhs), IIC_iALUr,
318 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
319 [(set rGPR:$dst, (opnode GPR:$lhs, rGPR:$rhs))]> {
320 let isCommutable = Commutable;
321 let Inst{31-27} = 0b11101;
322 let Inst{26-25} = 0b01;
323 let Inst{24-21} = opcod;
324 let Inst{20} = 1; // The S bit.
325 let Inst{14-12} = 0b000; // imm3
326 let Inst{7-6} = 0b00; // imm2
327 let Inst{5-4} = 0b00; // type
330 def rs : T2I<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
331 !strconcat(opc, "s"), ".w\t$dst, $lhs, $rhs",
332 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
333 let Inst{31-27} = 0b11101;
334 let Inst{26-25} = 0b01;
335 let Inst{24-21} = opcod;
336 let Inst{20} = 1; // The S bit.
341 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
342 /// patterns for a binary operation that produces a value.
343 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
344 bit Commutable = 0> {
346 def ri : T2sI<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
347 opc, ".w\t$dst, $lhs, $rhs",
348 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]> {
349 let Inst{31-27} = 0b11110;
352 let Inst{23-21} = op23_21;
353 let Inst{20} = 0; // The S bit.
357 def ri12 : T2I<(outs rGPR:$dst), (ins GPR:$lhs, imm0_4095:$rhs), IIC_iALUi,
358 !strconcat(opc, "w"), "\t$dst, $lhs, $rhs",
359 [(set rGPR:$dst, (opnode GPR:$lhs, imm0_4095:$rhs))]> {
360 let Inst{31-27} = 0b11110;
363 let Inst{23-21} = op23_21;
364 let Inst{20} = 0; // The S bit.
368 def rr : T2sI<(outs rGPR:$dst), (ins GPR:$lhs, rGPR:$rhs), IIC_iALUr,
369 opc, ".w\t$dst, $lhs, $rhs",
370 [(set rGPR:$dst, (opnode GPR:$lhs, rGPR:$rhs))]> {
371 let isCommutable = Commutable;
372 let Inst{31-27} = 0b11101;
373 let Inst{26-25} = 0b01;
375 let Inst{23-21} = op23_21;
376 let Inst{20} = 0; // The S bit.
377 let Inst{14-12} = 0b000; // imm3
378 let Inst{7-6} = 0b00; // imm2
379 let Inst{5-4} = 0b00; // type
382 def rs : T2sI<(outs rGPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
383 opc, ".w\t$dst, $lhs, $rhs",
384 [(set rGPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]> {
385 let Inst{31-27} = 0b11101;
386 let Inst{26-25} = 0b01;
388 let Inst{23-21} = op23_21;
389 let Inst{20} = 0; // The S bit.
393 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
394 /// for a binary operation that produces a value and use the carry
395 /// bit. It's not predicable.
396 let Uses = [CPSR] in {
397 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
398 bit Commutable = 0> {
400 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
401 opc, "\t$dst, $lhs, $rhs",
402 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]>,
403 Requires<[IsThumb2]> {
404 let Inst{31-27} = 0b11110;
406 let Inst{24-21} = opcod;
407 let Inst{20} = 0; // The S bit.
411 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iALUr,
412 opc, ".w\t$dst, $lhs, $rhs",
413 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]>,
414 Requires<[IsThumb2]> {
415 let isCommutable = Commutable;
416 let Inst{31-27} = 0b11101;
417 let Inst{26-25} = 0b01;
418 let Inst{24-21} = opcod;
419 let Inst{20} = 0; // The S bit.
420 let Inst{14-12} = 0b000; // imm3
421 let Inst{7-6} = 0b00; // imm2
422 let Inst{5-4} = 0b00; // type
425 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
426 opc, ".w\t$dst, $lhs, $rhs",
427 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]>,
428 Requires<[IsThumb2]> {
429 let Inst{31-27} = 0b11101;
430 let Inst{26-25} = 0b01;
431 let Inst{24-21} = opcod;
432 let Inst{20} = 0; // The S bit.
436 // Carry setting variants
437 let Defs = [CPSR] in {
438 multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
439 bit Commutable = 0> {
441 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
442 opc, "\t$dst, $lhs, $rhs",
443 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]>,
444 Requires<[IsThumb2]> {
445 let Inst{31-27} = 0b11110;
447 let Inst{24-21} = opcod;
448 let Inst{20} = 1; // The S bit.
452 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iALUr,
453 opc, ".w\t$dst, $lhs, $rhs",
454 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]>,
455 Requires<[IsThumb2]> {
456 let isCommutable = Commutable;
457 let Inst{31-27} = 0b11101;
458 let Inst{26-25} = 0b01;
459 let Inst{24-21} = opcod;
460 let Inst{20} = 1; // The S bit.
461 let Inst{14-12} = 0b000; // imm3
462 let Inst{7-6} = 0b00; // imm2
463 let Inst{5-4} = 0b00; // type
466 def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
467 opc, ".w\t$dst, $lhs, $rhs",
468 [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]>,
469 Requires<[IsThumb2]> {
470 let Inst{31-27} = 0b11101;
471 let Inst{26-25} = 0b01;
472 let Inst{24-21} = opcod;
473 let Inst{20} = 1; // The S bit.
479 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
480 /// version is not needed since this is only for codegen.
481 let Defs = [CPSR] in {
482 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
484 def ri : T2I<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_imm:$lhs), IIC_iALUi,
485 !strconcat(opc, "s"), ".w\t$dst, $rhs, $lhs",
486 [(set rGPR:$dst, (opnode t2_so_imm:$lhs, rGPR:$rhs))]> {
487 let Inst{31-27} = 0b11110;
489 let Inst{24-21} = opcod;
490 let Inst{20} = 1; // The S bit.
494 def rs : T2I<(outs rGPR:$dst), (ins rGPR:$rhs, t2_so_reg:$lhs), IIC_iALUsi,
495 !strconcat(opc, "s"), "\t$dst, $rhs, $lhs",
496 [(set rGPR:$dst, (opnode t2_so_reg:$lhs, rGPR:$rhs))]> {
497 let Inst{31-27} = 0b11101;
498 let Inst{26-25} = 0b01;
499 let Inst{24-21} = opcod;
500 let Inst{20} = 1; // The S bit.
505 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
506 // rotate operation that produces a value.
507 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
509 def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
510 opc, ".w\t$dst, $lhs, $rhs",
511 [(set rGPR:$dst, (opnode rGPR:$lhs, imm1_31:$rhs))]> {
512 let Inst{31-27} = 0b11101;
513 let Inst{26-21} = 0b010010;
514 let Inst{19-16} = 0b1111; // Rn
515 let Inst{5-4} = opcod;
518 def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iMOVsr,
519 opc, ".w\t$dst, $lhs, $rhs",
520 [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]> {
521 let Inst{31-27} = 0b11111;
522 let Inst{26-23} = 0b0100;
523 let Inst{22-21} = opcod;
524 let Inst{15-12} = 0b1111;
525 let Inst{7-4} = 0b0000;
529 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
530 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
531 /// a explicit result, only implicitly set CPSR.
532 let isCompare = 1, Defs = [CPSR] in {
533 multiclass T2I_cmp_irs<bits<4> opcod, string opc, PatFrag opnode> {
535 def ri : T2I<(outs), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iCMPi,
536 opc, ".w\t$lhs, $rhs",
537 [(opnode GPR:$lhs, t2_so_imm:$rhs)]> {
538 let Inst{31-27} = 0b11110;
540 let Inst{24-21} = opcod;
541 let Inst{20} = 1; // The S bit.
543 let Inst{11-8} = 0b1111; // Rd
546 def rr : T2I<(outs), (ins GPR:$lhs, rGPR:$rhs), IIC_iCMPr,
547 opc, ".w\t$lhs, $rhs",
548 [(opnode GPR:$lhs, rGPR:$rhs)]> {
549 let Inst{31-27} = 0b11101;
550 let Inst{26-25} = 0b01;
551 let Inst{24-21} = opcod;
552 let Inst{20} = 1; // The S bit.
553 let Inst{14-12} = 0b000; // imm3
554 let Inst{11-8} = 0b1111; // Rd
555 let Inst{7-6} = 0b00; // imm2
556 let Inst{5-4} = 0b00; // type
559 def rs : T2I<(outs), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iCMPsi,
560 opc, ".w\t$lhs, $rhs",
561 [(opnode GPR:$lhs, t2_so_reg:$rhs)]> {
562 let Inst{31-27} = 0b11101;
563 let Inst{26-25} = 0b01;
564 let Inst{24-21} = opcod;
565 let Inst{20} = 1; // The S bit.
566 let Inst{11-8} = 0b1111; // Rd
571 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
572 multiclass T2I_ld<bit signed, bits<2> opcod, string opc, PatFrag opnode> {
573 def i12 : T2Ii12<(outs GPR:$dst), (ins t2addrmode_imm12:$addr), IIC_iLoadi,
574 opc, ".w\t$dst, $addr",
575 [(set GPR:$dst, (opnode t2addrmode_imm12:$addr))]> {
576 let Inst{31-27} = 0b11111;
577 let Inst{26-25} = 0b00;
578 let Inst{24} = signed;
580 let Inst{22-21} = opcod;
581 let Inst{20} = 1; // load
583 def i8 : T2Ii8 <(outs GPR:$dst), (ins t2addrmode_imm8:$addr), IIC_iLoadi,
584 opc, "\t$dst, $addr",
585 [(set GPR:$dst, (opnode t2addrmode_imm8:$addr))]> {
586 let Inst{31-27} = 0b11111;
587 let Inst{26-25} = 0b00;
588 let Inst{24} = signed;
590 let Inst{22-21} = opcod;
591 let Inst{20} = 1; // load
593 // Offset: index==TRUE, wback==FALSE
594 let Inst{10} = 1; // The P bit.
595 let Inst{8} = 0; // The W bit.
597 def s : T2Iso <(outs GPR:$dst), (ins t2addrmode_so_reg:$addr), IIC_iLoadr,
598 opc, ".w\t$dst, $addr",
599 [(set GPR:$dst, (opnode t2addrmode_so_reg:$addr))]> {
600 let Inst{31-27} = 0b11111;
601 let Inst{26-25} = 0b00;
602 let Inst{24} = signed;
604 let Inst{22-21} = opcod;
605 let Inst{20} = 1; // load
606 let Inst{11-6} = 0b000000;
608 def pci : T2Ipc <(outs GPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
609 opc, ".w\t$dst, $addr",
610 [(set GPR:$dst, (opnode (ARMWrapper tconstpool:$addr)))]> {
611 let isReMaterializable = 1;
612 let Inst{31-27} = 0b11111;
613 let Inst{26-25} = 0b00;
614 let Inst{24} = signed;
615 let Inst{23} = ?; // add = (U == '1')
616 let Inst{22-21} = opcod;
617 let Inst{20} = 1; // load
618 let Inst{19-16} = 0b1111; // Rn
622 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
623 multiclass T2I_st<bits<2> opcod, string opc, PatFrag opnode> {
624 def i12 : T2Ii12<(outs), (ins GPR:$src, t2addrmode_imm12:$addr), IIC_iStorei,
625 opc, ".w\t$src, $addr",
626 [(opnode GPR:$src, t2addrmode_imm12:$addr)]> {
627 let Inst{31-27} = 0b11111;
628 let Inst{26-23} = 0b0001;
629 let Inst{22-21} = opcod;
630 let Inst{20} = 0; // !load
632 def i8 : T2Ii8 <(outs), (ins GPR:$src, t2addrmode_imm8:$addr), IIC_iStorei,
633 opc, "\t$src, $addr",
634 [(opnode GPR:$src, t2addrmode_imm8:$addr)]> {
635 let Inst{31-27} = 0b11111;
636 let Inst{26-23} = 0b0000;
637 let Inst{22-21} = opcod;
638 let Inst{20} = 0; // !load
640 // Offset: index==TRUE, wback==FALSE
641 let Inst{10} = 1; // The P bit.
642 let Inst{8} = 0; // The W bit.
644 def s : T2Iso <(outs), (ins GPR:$src, t2addrmode_so_reg:$addr), IIC_iStorer,
645 opc, ".w\t$src, $addr",
646 [(opnode GPR:$src, t2addrmode_so_reg:$addr)]> {
647 let Inst{31-27} = 0b11111;
648 let Inst{26-23} = 0b0000;
649 let Inst{22-21} = opcod;
650 let Inst{20} = 0; // !load
651 let Inst{11-6} = 0b000000;
655 /// T2I_unary_rrot - A unary operation with two forms: one whose operand is a
656 /// register and one whose operand is a register rotated by 8/16/24.
657 multiclass T2I_unary_rrot<bits<3> opcod, string opc, PatFrag opnode> {
658 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
659 opc, ".w\t$dst, $src",
660 [(set rGPR:$dst, (opnode rGPR:$src))]> {
661 let Inst{31-27} = 0b11111;
662 let Inst{26-23} = 0b0100;
663 let Inst{22-20} = opcod;
664 let Inst{19-16} = 0b1111; // Rn
665 let Inst{15-12} = 0b1111;
667 let Inst{5-4} = 0b00; // rotate
669 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iUNAsi,
670 opc, ".w\t$dst, $src, ror $rot",
671 [(set rGPR:$dst, (opnode (rotr rGPR:$src, rot_imm:$rot)))]> {
672 let Inst{31-27} = 0b11111;
673 let Inst{26-23} = 0b0100;
674 let Inst{22-20} = opcod;
675 let Inst{19-16} = 0b1111; // Rn
676 let Inst{15-12} = 0b1111;
678 let Inst{5-4} = {?,?}; // rotate
682 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
683 multiclass T2I_unary_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> {
684 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
686 [(set rGPR:$dst, (opnode rGPR:$src))]>,
687 Requires<[HasT2ExtractPack]> {
688 let Inst{31-27} = 0b11111;
689 let Inst{26-23} = 0b0100;
690 let Inst{22-20} = opcod;
691 let Inst{19-16} = 0b1111; // Rn
692 let Inst{15-12} = 0b1111;
694 let Inst{5-4} = 0b00; // rotate
696 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iUNAsi,
697 opc, "\t$dst, $src, ror $rot",
698 [(set rGPR:$dst, (opnode (rotr rGPR:$src, rot_imm:$rot)))]>,
699 Requires<[HasT2ExtractPack]> {
700 let Inst{31-27} = 0b11111;
701 let Inst{26-23} = 0b0100;
702 let Inst{22-20} = opcod;
703 let Inst{19-16} = 0b1111; // Rn
704 let Inst{15-12} = 0b1111;
706 let Inst{5-4} = {?,?}; // rotate
710 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
712 multiclass T2I_unary_rrot_sxtb16<bits<3> opcod, string opc> {
713 def r : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
714 opc, "\t$dst, $src", []> {
715 let Inst{31-27} = 0b11111;
716 let Inst{26-23} = 0b0100;
717 let Inst{22-20} = opcod;
718 let Inst{19-16} = 0b1111; // Rn
719 let Inst{15-12} = 0b1111;
721 let Inst{5-4} = 0b00; // rotate
723 def r_rot : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$rot), IIC_iUNAsi,
724 opc, "\t$dst, $src, ror $rot", []> {
725 let Inst{31-27} = 0b11111;
726 let Inst{26-23} = 0b0100;
727 let Inst{22-20} = opcod;
728 let Inst{19-16} = 0b1111; // Rn
729 let Inst{15-12} = 0b1111;
731 let Inst{5-4} = {?,?}; // rotate
735 /// T2I_bin_rrot - A binary operation with two forms: one whose operand is a
736 /// register and one whose operand is a register rotated by 8/16/24.
737 multiclass T2I_bin_rrot<bits<3> opcod, string opc, PatFrag opnode> {
738 def rr : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS), IIC_iALUr,
739 opc, "\t$dst, $LHS, $RHS",
740 [(set rGPR:$dst, (opnode rGPR:$LHS, rGPR:$RHS))]>,
741 Requires<[HasT2ExtractPack]> {
742 let Inst{31-27} = 0b11111;
743 let Inst{26-23} = 0b0100;
744 let Inst{22-20} = opcod;
745 let Inst{15-12} = 0b1111;
747 let Inst{5-4} = 0b00; // rotate
749 def rr_rot : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS, i32imm:$rot),
750 IIC_iALUsr, opc, "\t$dst, $LHS, $RHS, ror $rot",
751 [(set rGPR:$dst, (opnode rGPR:$LHS,
752 (rotr rGPR:$RHS, rot_imm:$rot)))]>,
753 Requires<[HasT2ExtractPack]> {
754 let Inst{31-27} = 0b11111;
755 let Inst{26-23} = 0b0100;
756 let Inst{22-20} = opcod;
757 let Inst{15-12} = 0b1111;
759 let Inst{5-4} = {?,?}; // rotate
763 // DO variant - disassembly only, no pattern
765 multiclass T2I_bin_rrot_DO<bits<3> opcod, string opc> {
766 def rr : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS), IIC_iALUr,
767 opc, "\t$dst, $LHS, $RHS", []> {
768 let Inst{31-27} = 0b11111;
769 let Inst{26-23} = 0b0100;
770 let Inst{22-20} = opcod;
771 let Inst{15-12} = 0b1111;
773 let Inst{5-4} = 0b00; // rotate
775 def rr_rot : T2I<(outs rGPR:$dst), (ins rGPR:$LHS, rGPR:$RHS, i32imm:$rot),
776 IIC_iALUsr, opc, "\t$dst, $LHS, $RHS, ror $rot", []> {
777 let Inst{31-27} = 0b11111;
778 let Inst{26-23} = 0b0100;
779 let Inst{22-20} = opcod;
780 let Inst{15-12} = 0b1111;
782 let Inst{5-4} = {?,?}; // rotate
786 //===----------------------------------------------------------------------===//
788 //===----------------------------------------------------------------------===//
790 //===----------------------------------------------------------------------===//
791 // Miscellaneous Instructions.
794 // LEApcrel - Load a pc-relative address into a register without offending the
796 let neverHasSideEffects = 1 in {
797 let isReMaterializable = 1 in
798 def t2LEApcrel : T2XI<(outs rGPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
799 "adr${p}.w\t$dst, #$label", []> {
800 let Inst{31-27} = 0b11110;
801 let Inst{25-24} = 0b10;
802 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
805 let Inst{19-16} = 0b1111; // Rn
808 } // neverHasSideEffects
809 def t2LEApcrelJT : T2XI<(outs rGPR:$dst),
810 (ins i32imm:$label, nohash_imm:$id, pred:$p), IIC_iALUi,
811 "adr${p}.w\t$dst, #${label}_${id}", []> {
812 let Inst{31-27} = 0b11110;
813 let Inst{25-24} = 0b10;
814 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
817 let Inst{19-16} = 0b1111; // Rn
821 // ADD r, sp, {so_imm|i12}
822 def t2ADDrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
823 IIC_iALUi, "add", ".w\t$dst, $sp, $imm", []> {
824 let Inst{31-27} = 0b11110;
826 let Inst{24-21} = 0b1000;
827 let Inst{20} = ?; // The S bit.
828 let Inst{19-16} = 0b1101; // Rn = sp
831 def t2ADDrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
832 IIC_iALUi, "addw", "\t$dst, $sp, $imm", []> {
833 let Inst{31-27} = 0b11110;
835 let Inst{24-21} = 0b0000;
836 let Inst{20} = 0; // The S bit.
837 let Inst{19-16} = 0b1101; // Rn = sp
842 def t2ADDrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
843 IIC_iALUsi, "add", ".w\t$dst, $sp, $rhs", []> {
844 let Inst{31-27} = 0b11101;
845 let Inst{26-25} = 0b01;
846 let Inst{24-21} = 0b1000;
847 let Inst{20} = ?; // The S bit.
848 let Inst{19-16} = 0b1101; // Rn = sp
852 // SUB r, sp, {so_imm|i12}
853 def t2SUBrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
854 IIC_iALUi, "sub", ".w\t$dst, $sp, $imm", []> {
855 let Inst{31-27} = 0b11110;
857 let Inst{24-21} = 0b1101;
858 let Inst{20} = ?; // The S bit.
859 let Inst{19-16} = 0b1101; // Rn = sp
862 def t2SUBrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
863 IIC_iALUi, "subw", "\t$dst, $sp, $imm", []> {
864 let Inst{31-27} = 0b11110;
866 let Inst{24-21} = 0b0101;
867 let Inst{20} = 0; // The S bit.
868 let Inst{19-16} = 0b1101; // Rn = sp
873 def t2SUBrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
875 "sub", "\t$dst, $sp, $rhs", []> {
876 let Inst{31-27} = 0b11101;
877 let Inst{26-25} = 0b01;
878 let Inst{24-21} = 0b1101;
879 let Inst{20} = ?; // The S bit.
880 let Inst{19-16} = 0b1101; // Rn = sp
884 // Signed and unsigned division on v7-M
885 def t2SDIV : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iALUi,
886 "sdiv", "\t$dst, $a, $b",
887 [(set rGPR:$dst, (sdiv rGPR:$a, rGPR:$b))]>,
888 Requires<[HasDivide]> {
889 let Inst{31-27} = 0b11111;
890 let Inst{26-21} = 0b011100;
892 let Inst{15-12} = 0b1111;
893 let Inst{7-4} = 0b1111;
896 def t2UDIV : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iALUi,
897 "udiv", "\t$dst, $a, $b",
898 [(set rGPR:$dst, (udiv rGPR:$a, rGPR:$b))]>,
899 Requires<[HasDivide]> {
900 let Inst{31-27} = 0b11111;
901 let Inst{26-21} = 0b011101;
903 let Inst{15-12} = 0b1111;
904 let Inst{7-4} = 0b1111;
907 //===----------------------------------------------------------------------===//
908 // Load / store Instructions.
912 let canFoldAsLoad = 1, isReMaterializable = 1 in
913 defm t2LDR : T2I_ld<0, 0b10, "ldr", UnOpFrag<(load node:$Src)>>;
915 // Loads with zero extension
916 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", UnOpFrag<(zextloadi16 node:$Src)>>;
917 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", UnOpFrag<(zextloadi8 node:$Src)>>;
919 // Loads with sign extension
920 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", UnOpFrag<(sextloadi16 node:$Src)>>;
921 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", UnOpFrag<(sextloadi8 node:$Src)>>;
923 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
925 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
926 (ins t2addrmode_imm8s4:$addr),
927 IIC_iLoadi, "ldrd", "\t$dst1, $addr", []>;
928 def t2LDRDpci : T2Ii8s4<1, 0, 1, (outs rGPR:$dst1, rGPR:$dst2),
929 (ins i32imm:$addr), IIC_iLoadi,
930 "ldrd", "\t$dst1, $addr", []> {
931 let Inst{19-16} = 0b1111; // Rn
933 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
935 // zextload i1 -> zextload i8
936 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
937 (t2LDRBi12 t2addrmode_imm12:$addr)>;
938 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
939 (t2LDRBi8 t2addrmode_imm8:$addr)>;
940 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
941 (t2LDRBs t2addrmode_so_reg:$addr)>;
942 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
943 (t2LDRBpci tconstpool:$addr)>;
945 // extload -> zextload
946 // FIXME: Reduce the number of patterns by legalizing extload to zextload
948 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
949 (t2LDRBi12 t2addrmode_imm12:$addr)>;
950 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
951 (t2LDRBi8 t2addrmode_imm8:$addr)>;
952 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
953 (t2LDRBs t2addrmode_so_reg:$addr)>;
954 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
955 (t2LDRBpci tconstpool:$addr)>;
957 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
958 (t2LDRBi12 t2addrmode_imm12:$addr)>;
959 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
960 (t2LDRBi8 t2addrmode_imm8:$addr)>;
961 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
962 (t2LDRBs t2addrmode_so_reg:$addr)>;
963 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
964 (t2LDRBpci tconstpool:$addr)>;
966 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
967 (t2LDRHi12 t2addrmode_imm12:$addr)>;
968 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
969 (t2LDRHi8 t2addrmode_imm8:$addr)>;
970 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
971 (t2LDRHs t2addrmode_so_reg:$addr)>;
972 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
973 (t2LDRHpci tconstpool:$addr)>;
975 // FIXME: The destination register of the loads and stores can't be PC, but
976 // can be SP. We need another regclass (similar to rGPR) to represent
977 // that. Not a pressing issue since these are selected manually,
981 let mayLoad = 1, neverHasSideEffects = 1 in {
982 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$dst, GPR:$base_wb),
983 (ins t2addrmode_imm8:$addr),
984 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
985 "ldr", "\t$dst, $addr!", "$addr.base = $base_wb",
988 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$dst, GPR:$base_wb),
989 (ins GPR:$base, t2am_imm8_offset:$offset),
990 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
991 "ldr", "\t$dst, [$base], $offset", "$base = $base_wb",
994 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
995 (ins t2addrmode_imm8:$addr),
996 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
997 "ldrb", "\t$dst, $addr!", "$addr.base = $base_wb",
999 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1000 (ins GPR:$base, t2am_imm8_offset:$offset),
1001 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1002 "ldrb", "\t$dst, [$base], $offset", "$base = $base_wb",
1005 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1006 (ins t2addrmode_imm8:$addr),
1007 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1008 "ldrh", "\t$dst, $addr!", "$addr.base = $base_wb",
1010 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1011 (ins GPR:$base, t2am_imm8_offset:$offset),
1012 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1013 "ldrh", "\t$dst, [$base], $offset", "$base = $base_wb",
1016 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1017 (ins t2addrmode_imm8:$addr),
1018 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1019 "ldrsb", "\t$dst, $addr!", "$addr.base = $base_wb",
1021 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1022 (ins GPR:$base, t2am_imm8_offset:$offset),
1023 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1024 "ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb",
1027 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$dst, GPR:$base_wb),
1028 (ins t2addrmode_imm8:$addr),
1029 AddrModeT2_i8, IndexModePre, IIC_iLoadiu,
1030 "ldrsh", "\t$dst, $addr!", "$addr.base = $base_wb",
1032 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1033 (ins GPR:$base, t2am_imm8_offset:$offset),
1034 AddrModeT2_i8, IndexModePost, IIC_iLoadiu,
1035 "ldrsh", "\t$dst, [$base], $offset", "$base = $base_wb",
1037 } // mayLoad = 1, neverHasSideEffects = 1
1039 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1040 // for disassembly only.
1041 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1042 class T2IldT<bit signed, bits<2> type, string opc>
1043 : T2Ii8<(outs GPR:$dst), (ins t2addrmode_imm8:$addr), IIC_iLoadi, opc,
1044 "\t$dst, $addr", []> {
1045 let Inst{31-27} = 0b11111;
1046 let Inst{26-25} = 0b00;
1047 let Inst{24} = signed;
1049 let Inst{22-21} = type;
1050 let Inst{20} = 1; // load
1052 let Inst{10-8} = 0b110; // PUW.
1055 def t2LDRT : T2IldT<0, 0b10, "ldrt">;
1056 def t2LDRBT : T2IldT<0, 0b00, "ldrbt">;
1057 def t2LDRHT : T2IldT<0, 0b01, "ldrht">;
1058 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt">;
1059 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht">;
1062 defm t2STR :T2I_st<0b10,"str", BinOpFrag<(store node:$LHS, node:$RHS)>>;
1063 defm t2STRB:T2I_st<0b00,"strb",BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1064 defm t2STRH:T2I_st<0b01,"strh",BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1067 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1068 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1069 (ins GPR:$src1, GPR:$src2, t2addrmode_imm8s4:$addr),
1070 IIC_iStorer, "strd", "\t$src1, $addr", []>;
1073 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1074 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1075 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1076 "str", "\t$src, [$base, $offset]!", "$base = $base_wb",
1078 (pre_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1080 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1081 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1082 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1083 "str", "\t$src, [$base], $offset", "$base = $base_wb",
1085 (post_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1087 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1088 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1089 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1090 "strh", "\t$src, [$base, $offset]!", "$base = $base_wb",
1092 (pre_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1094 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1095 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1096 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1097 "strh", "\t$src, [$base], $offset", "$base = $base_wb",
1099 (post_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1101 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1102 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1103 AddrModeT2_i8, IndexModePre, IIC_iStoreiu,
1104 "strb", "\t$src, [$base, $offset]!", "$base = $base_wb",
1106 (pre_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1108 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1109 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
1110 AddrModeT2_i8, IndexModePost, IIC_iStoreiu,
1111 "strb", "\t$src, [$base], $offset", "$base = $base_wb",
1113 (post_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
1115 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1117 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1118 class T2IstT<bits<2> type, string opc>
1119 : T2Ii8<(outs GPR:$src), (ins t2addrmode_imm8:$addr), IIC_iStorei, opc,
1120 "\t$src, $addr", []> {
1121 let Inst{31-27} = 0b11111;
1122 let Inst{26-25} = 0b00;
1123 let Inst{24} = 0; // not signed
1125 let Inst{22-21} = type;
1126 let Inst{20} = 0; // store
1128 let Inst{10-8} = 0b110; // PUW
1131 def t2STRT : T2IstT<0b10, "strt">;
1132 def t2STRBT : T2IstT<0b00, "strbt">;
1133 def t2STRHT : T2IstT<0b01, "strht">;
1135 // ldrd / strd pre / post variants
1136 // For disassembly only.
1138 def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1139 (ins GPR:$base, t2am_imm8s4_offset:$imm), NoItinerary,
1140 "ldrd", "\t$dst1, $dst2, [$base, $imm]!", []>;
1142 def t2LDRD_POST : T2Ii8s4<0, 1, 1, (outs GPR:$dst1, GPR:$dst2),
1143 (ins GPR:$base, t2am_imm8s4_offset:$imm), NoItinerary,
1144 "ldrd", "\t$dst1, $dst2, [$base], $imm", []>;
1146 def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs),
1147 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1148 NoItinerary, "strd", "\t$src1, $src2, [$base, $imm]!", []>;
1150 def t2STRD_POST : T2Ii8s4<0, 1, 0, (outs),
1151 (ins GPR:$src1, GPR:$src2, GPR:$base, t2am_imm8s4_offset:$imm),
1152 NoItinerary, "strd", "\t$src1, $src2, [$base], $imm", []>;
1154 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1155 // data/instruction access. These are for disassembly only.
1157 // A8.6.117, A8.6.118. Different instructions are generated for #0 and #-0.
1158 // The neg_zero operand translates -0 to -1, -1 to -2, ..., etc.
1159 multiclass T2Ipl<bit instr, bit write, string opc> {
1161 def i12 : T2I<(outs), (ins GPR:$base, i32imm:$imm), IIC_iLoadi, opc,
1162 "\t[$base, $imm]", []> {
1163 let Inst{31-25} = 0b1111100;
1164 let Inst{24} = instr;
1165 let Inst{23} = 1; // U = 1
1167 let Inst{21} = write;
1169 let Inst{15-12} = 0b1111;
1172 def i8 : T2I<(outs), (ins GPR:$base, neg_zero:$imm), IIC_iLoadi, opc,
1173 "\t[$base, $imm]", []> {
1174 let Inst{31-25} = 0b1111100;
1175 let Inst{24} = instr;
1176 let Inst{23} = 0; // U = 0
1178 let Inst{21} = write;
1180 let Inst{15-12} = 0b1111;
1181 let Inst{11-8} = 0b1100;
1184 def pci : T2I<(outs), (ins GPR:$base, neg_zero:$imm), IIC_iLoadi, opc,
1185 "\t[pc, $imm]", []> {
1186 let Inst{31-25} = 0b1111100;
1187 let Inst{24} = instr;
1188 let Inst{23} = ?; // add = (U == 1)
1190 let Inst{21} = write;
1192 let Inst{19-16} = 0b1111; // Rn = 0b1111
1193 let Inst{15-12} = 0b1111;
1196 def r : T2I<(outs), (ins GPR:$base, GPR:$a), IIC_iLoadi, opc,
1197 "\t[$base, $a]", []> {
1198 let Inst{31-25} = 0b1111100;
1199 let Inst{24} = instr;
1200 let Inst{23} = 0; // add = TRUE for T1
1202 let Inst{21} = write;
1204 let Inst{15-12} = 0b1111;
1205 let Inst{11-6} = 0000000;
1206 let Inst{5-4} = 0b00; // no shift is applied
1209 def s : T2I<(outs), (ins GPR:$base, GPR:$a, i32imm:$shamt), IIC_iLoadi, opc,
1210 "\t[$base, $a, lsl $shamt]", []> {
1211 let Inst{31-25} = 0b1111100;
1212 let Inst{24} = instr;
1213 let Inst{23} = 0; // add = TRUE for T1
1215 let Inst{21} = write;
1217 let Inst{15-12} = 0b1111;
1218 let Inst{11-6} = 0000000;
1222 defm t2PLD : T2Ipl<0, 0, "pld">;
1223 defm t2PLDW : T2Ipl<0, 1, "pldw">;
1224 defm t2PLI : T2Ipl<1, 0, "pli">;
1226 //===----------------------------------------------------------------------===//
1227 // Load / store multiple Instructions.
1230 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1231 def t2LDM : T2XI<(outs), (ins addrmode4:$addr, pred:$p,
1232 reglist:$dsts, variable_ops), IIC_iLoadm,
1233 "ldm${addr:submode}${p}${addr:wide}\t$addr, $dsts", []> {
1234 let Inst{31-27} = 0b11101;
1235 let Inst{26-25} = 0b00;
1236 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1238 let Inst{21} = 0; // The W bit.
1239 let Inst{20} = 1; // Load
1242 def t2LDM_UPD : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
1243 reglist:$dsts, variable_ops), IIC_iLoadm,
1244 "ldm${addr:submode}${p}${addr:wide}\t$addr!, $dsts",
1245 "$addr.addr = $wb", []> {
1246 let Inst{31-27} = 0b11101;
1247 let Inst{26-25} = 0b00;
1248 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1250 let Inst{21} = 1; // The W bit.
1251 let Inst{20} = 1; // Load
1253 } // mayLoad, neverHasSideEffects, hasExtraDefRegAllocReq
1255 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in {
1256 def t2STM : T2XI<(outs), (ins addrmode4:$addr, pred:$p,
1257 reglist:$srcs, variable_ops), IIC_iStorem,
1258 "stm${addr:submode}${p}${addr:wide}\t$addr, $srcs", []> {
1259 let Inst{31-27} = 0b11101;
1260 let Inst{26-25} = 0b00;
1261 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1263 let Inst{21} = 0; // The W bit.
1264 let Inst{20} = 0; // Store
1267 def t2STM_UPD : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
1268 reglist:$srcs, variable_ops),
1270 "stm${addr:submode}${p}${addr:wide}\t$addr!, $srcs",
1271 "$addr.addr = $wb", []> {
1272 let Inst{31-27} = 0b11101;
1273 let Inst{26-25} = 0b00;
1274 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
1276 let Inst{21} = 1; // The W bit.
1277 let Inst{20} = 0; // Store
1279 } // mayStore, neverHasSideEffects, hasExtraSrcRegAllocReq
1281 //===----------------------------------------------------------------------===//
1282 // Move Instructions.
1285 let neverHasSideEffects = 1 in
1286 def t2MOVr : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
1287 "mov", ".w\t$dst, $src", []> {
1288 let Inst{31-27} = 0b11101;
1289 let Inst{26-25} = 0b01;
1290 let Inst{24-21} = 0b0010;
1291 let Inst{20} = ?; // The S bit.
1292 let Inst{19-16} = 0b1111; // Rn
1293 let Inst{14-12} = 0b000;
1294 let Inst{7-4} = 0b0000;
1297 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1298 let isReMaterializable = 1, isAsCheapAsAMove = 1, AddedComplexity = 1 in
1299 def t2MOVi : T2sI<(outs rGPR:$dst), (ins t2_so_imm:$src), IIC_iMOVi,
1300 "mov", ".w\t$dst, $src",
1301 [(set rGPR:$dst, t2_so_imm:$src)]> {
1302 let Inst{31-27} = 0b11110;
1304 let Inst{24-21} = 0b0010;
1305 let Inst{20} = ?; // The S bit.
1306 let Inst{19-16} = 0b1111; // Rn
1310 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
1311 def t2MOVi16 : T2I<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVi,
1312 "movw", "\t$dst, $src",
1313 [(set rGPR:$dst, imm0_65535:$src)]> {
1314 let Inst{31-27} = 0b11110;
1316 let Inst{24-21} = 0b0010;
1317 let Inst{20} = 0; // The S bit.
1321 let Constraints = "$src = $dst" in
1322 def t2MOVTi16 : T2I<(outs rGPR:$dst), (ins rGPR:$src, i32imm:$imm), IIC_iMOVi,
1323 "movt", "\t$dst, $imm",
1325 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1326 let Inst{31-27} = 0b11110;
1328 let Inst{24-21} = 0b0110;
1329 let Inst{20} = 0; // The S bit.
1333 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1335 //===----------------------------------------------------------------------===//
1336 // Extend Instructions.
1341 defm t2SXTB : T2I_unary_rrot<0b100, "sxtb",
1342 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1343 defm t2SXTH : T2I_unary_rrot<0b000, "sxth",
1344 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1345 defm t2SXTB16 : T2I_unary_rrot_sxtb16<0b010, "sxtb16">;
1347 defm t2SXTAB : T2I_bin_rrot<0b100, "sxtab",
1348 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1349 defm t2SXTAH : T2I_bin_rrot<0b000, "sxtah",
1350 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1351 defm t2SXTAB16 : T2I_bin_rrot_DO<0b010, "sxtab16">;
1353 // TODO: SXT(A){B|H}16 - done for disassembly only
1357 let AddedComplexity = 16 in {
1358 defm t2UXTB : T2I_unary_rrot<0b101, "uxtb",
1359 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1360 defm t2UXTH : T2I_unary_rrot<0b001, "uxth",
1361 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1362 defm t2UXTB16 : T2I_unary_rrot_uxtb16<0b011, "uxtb16",
1363 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1365 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1366 // The transformation should probably be done as a combiner action
1367 // instead so we can include a check for masking back in the upper
1368 // eight bits of the source into the lower eight bits of the result.
1369 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1370 // (t2UXTB16r_rot rGPR:$Src, 24)>, Requires<[HasT2ExtractPack]>;
1371 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1372 (t2UXTB16r_rot rGPR:$Src, 8)>, Requires<[HasT2ExtractPack]>;
1374 defm t2UXTAB : T2I_bin_rrot<0b101, "uxtab",
1375 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1376 defm t2UXTAH : T2I_bin_rrot<0b001, "uxtah",
1377 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1378 defm t2UXTAB16 : T2I_bin_rrot_DO<0b011, "uxtab16">;
1381 //===----------------------------------------------------------------------===//
1382 // Arithmetic Instructions.
1385 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1386 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1387 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1388 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1390 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1391 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1392 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1393 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1394 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1396 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1397 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1398 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1399 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1400 defm t2ADCS : T2I_adde_sube_s_irs<0b1010, "adc",
1401 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
1402 defm t2SBCS : T2I_adde_sube_s_irs<0b1011, "sbc",
1403 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS)>>;
1406 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1407 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1408 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1409 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1411 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1412 // The assume-no-carry-in form uses the negation of the input since add/sub
1413 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1414 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1416 // The AddedComplexity preferences the first variant over the others since
1417 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1418 let AddedComplexity = 1 in
1419 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1420 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1421 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1422 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1423 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1424 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1425 let AddedComplexity = 1 in
1426 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1427 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1428 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1429 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1430 // The with-carry-in form matches bitwise not instead of the negation.
1431 // Effectively, the inverse interpretation of the carry flag already accounts
1432 // for part of the negation.
1433 let AddedComplexity = 1 in
1434 def : T2Pat<(adde rGPR:$src, imm0_255_not:$imm),
1435 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1436 def : T2Pat<(adde rGPR:$src, t2_so_imm_not:$imm),
1437 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1439 // Select Bytes -- for disassembly only
1441 def t2SEL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), NoItinerary, "sel",
1442 "\t$dst, $a, $b", []> {
1443 let Inst{31-27} = 0b11111;
1444 let Inst{26-24} = 0b010;
1446 let Inst{22-20} = 0b010;
1447 let Inst{15-12} = 0b1111;
1449 let Inst{6-4} = 0b000;
1452 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1453 // And Miscellaneous operations -- for disassembly only
1454 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1455 list<dag> pat = [/* For disassembly only; pattern left blank */]>
1456 : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), NoItinerary, opc,
1457 "\t$dst, $a, $b", pat> {
1458 let Inst{31-27} = 0b11111;
1459 let Inst{26-23} = 0b0101;
1460 let Inst{22-20} = op22_20;
1461 let Inst{15-12} = 0b1111;
1462 let Inst{7-4} = op7_4;
1465 // Saturating add/subtract -- for disassembly only
1467 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1468 [(set rGPR:$dst, (int_arm_qadd rGPR:$a, rGPR:$b))]>;
1469 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1470 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1471 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1472 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd">;
1473 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub">;
1474 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1475 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1476 [(set rGPR:$dst, (int_arm_qsub rGPR:$a, rGPR:$b))]>;
1477 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1478 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1479 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1480 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1481 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1482 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1483 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1484 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1486 // Signed/Unsigned add/subtract -- for disassembly only
1488 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1489 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1490 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1491 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1492 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1493 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1494 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1495 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1496 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1497 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1498 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1499 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1501 // Signed/Unsigned halving add/subtract -- for disassembly only
1503 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1504 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1505 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1506 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1507 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1508 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1509 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1510 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1511 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1512 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1513 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1514 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1516 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1518 def t2USAD8 : T2I_mac<0, 0b111, 0b0000, (outs rGPR:$dst),
1519 (ins rGPR:$a, rGPR:$b),
1520 NoItinerary, "usad8", "\t$dst, $a, $b", []> {
1521 let Inst{15-12} = 0b1111;
1523 def t2USADA8 : T2I_mac<0, 0b111, 0b0000, (outs rGPR:$dst),
1524 (ins rGPR:$a, rGPR:$b, rGPR:$acc), NoItinerary, "usada8",
1525 "\t$dst, $a, $b, $acc", []>;
1527 // Signed/Unsigned saturate -- for disassembly only
1529 def t2SSAT: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a, shift_imm:$sh),
1530 NoItinerary, "ssat", "\t$dst, $bit_pos, $a$sh",
1531 [/* For disassembly only; pattern left blank */]> {
1532 let Inst{31-27} = 0b11110;
1533 let Inst{25-22} = 0b1100;
1538 def t2SSAT16: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a), NoItinerary,
1539 "ssat16", "\t$dst, $bit_pos, $a",
1540 [/* For disassembly only; pattern left blank */]> {
1541 let Inst{31-27} = 0b11110;
1542 let Inst{25-22} = 0b1100;
1545 let Inst{21} = 1; // sh = '1'
1546 let Inst{14-12} = 0b000; // imm3 = '000'
1547 let Inst{7-6} = 0b00; // imm2 = '00'
1550 def t2USAT: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a, shift_imm:$sh),
1551 NoItinerary, "usat", "\t$dst, $bit_pos, $a$sh",
1552 [/* For disassembly only; pattern left blank */]> {
1553 let Inst{31-27} = 0b11110;
1554 let Inst{25-22} = 0b1110;
1559 def t2USAT16: T2I<(outs rGPR:$dst), (ins i32imm:$bit_pos, rGPR:$a), NoItinerary,
1560 "usat16", "\t$dst, $bit_pos, $a",
1561 [/* For disassembly only; pattern left blank */]> {
1562 let Inst{31-27} = 0b11110;
1563 let Inst{25-22} = 0b1110;
1566 let Inst{21} = 1; // sh = '1'
1567 let Inst{14-12} = 0b000; // imm3 = '000'
1568 let Inst{7-6} = 0b00; // imm2 = '00'
1571 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
1572 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
1574 //===----------------------------------------------------------------------===//
1575 // Shift and rotate Instructions.
1578 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
1579 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
1580 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
1581 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
1583 let Uses = [CPSR] in {
1584 def t2MOVrx : T2sI<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1585 "rrx", "\t$dst, $src",
1586 [(set rGPR:$dst, (ARMrrx rGPR:$src))]> {
1587 let Inst{31-27} = 0b11101;
1588 let Inst{26-25} = 0b01;
1589 let Inst{24-21} = 0b0010;
1590 let Inst{20} = ?; // The S bit.
1591 let Inst{19-16} = 0b1111; // Rn
1592 let Inst{14-12} = 0b000;
1593 let Inst{7-4} = 0b0011;
1597 let Defs = [CPSR] in {
1598 def t2MOVsrl_flag : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1599 "lsrs", ".w\t$dst, $src, #1",
1600 [(set rGPR:$dst, (ARMsrl_flag rGPR:$src))]> {
1601 let Inst{31-27} = 0b11101;
1602 let Inst{26-25} = 0b01;
1603 let Inst{24-21} = 0b0010;
1604 let Inst{20} = 1; // The S bit.
1605 let Inst{19-16} = 0b1111; // Rn
1606 let Inst{5-4} = 0b01; // Shift type.
1607 // Shift amount = Inst{14-12:7-6} = 1.
1608 let Inst{14-12} = 0b000;
1609 let Inst{7-6} = 0b01;
1611 def t2MOVsra_flag : T2I<(outs rGPR:$dst), (ins rGPR:$src), IIC_iMOVsi,
1612 "asrs", ".w\t$dst, $src, #1",
1613 [(set rGPR:$dst, (ARMsra_flag rGPR:$src))]> {
1614 let Inst{31-27} = 0b11101;
1615 let Inst{26-25} = 0b01;
1616 let Inst{24-21} = 0b0010;
1617 let Inst{20} = 1; // The S bit.
1618 let Inst{19-16} = 0b1111; // Rn
1619 let Inst{5-4} = 0b10; // Shift type.
1620 // Shift amount = Inst{14-12:7-6} = 1.
1621 let Inst{14-12} = 0b000;
1622 let Inst{7-6} = 0b01;
1626 //===----------------------------------------------------------------------===//
1627 // Bitwise Instructions.
1630 defm t2AND : T2I_bin_w_irs<0b0000, "and",
1631 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
1632 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
1633 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
1634 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
1635 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
1637 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
1638 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
1640 let Defs = [CPSR] in
1641 defm t2ANDS : T2I_bin_sw_irs<0b0000, "and",
1642 BinOpFrag<(ARMand node:$LHS, node:$RHS)>, 1>;
1644 let Constraints = "$src = $dst" in
1645 def t2BFC : T2I<(outs rGPR:$dst), (ins rGPR:$src, bf_inv_mask_imm:$imm),
1646 IIC_iUNAsi, "bfc", "\t$dst, $imm",
1647 [(set rGPR:$dst, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
1648 let Inst{31-27} = 0b11110;
1650 let Inst{24-20} = 0b10110;
1651 let Inst{19-16} = 0b1111; // Rn
1655 def t2SBFX: T2I<(outs rGPR:$dst), (ins rGPR:$src, imm0_31:$lsb, imm0_31:$width),
1656 IIC_iALUi, "sbfx", "\t$dst, $src, $lsb, $width", []> {
1657 let Inst{31-27} = 0b11110;
1659 let Inst{24-20} = 0b10100;
1663 def t2UBFX: T2I<(outs rGPR:$dst), (ins rGPR:$src, imm0_31:$lsb, imm0_31:$width),
1664 IIC_iALUi, "ubfx", "\t$dst, $src, $lsb, $width", []> {
1665 let Inst{31-27} = 0b11110;
1667 let Inst{24-20} = 0b11100;
1671 // A8.6.18 BFI - Bitfield insert (Encoding T1)
1672 let Constraints = "$src = $dst" in
1673 def t2BFI : T2I<(outs rGPR:$dst),
1674 (ins rGPR:$src, rGPR:$val, bf_inv_mask_imm:$imm),
1675 IIC_iALUi, "bfi", "\t$dst, $val, $imm",
1676 [(set rGPR:$dst, (ARMbfi rGPR:$src, rGPR:$val,
1677 bf_inv_mask_imm:$imm))]> {
1678 let Inst{31-27} = 0b11110;
1680 let Inst{24-20} = 0b10110;
1684 defm t2ORN : T2I_bin_irs<0b0011, "orn", BinOpFrag<(or node:$LHS,
1685 (not node:$RHS))>, 0, "", ?>;
1687 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
1688 let AddedComplexity = 1 in
1689 defm t2MVN : T2I_un_irs <0b0011, "mvn", UnOpFrag<(not node:$Src)>, 1, 1>;
1692 let AddedComplexity = 1 in
1693 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
1694 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
1696 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
1697 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
1698 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
1699 Requires<[IsThumb2]>;
1701 def : T2Pat<(t2_so_imm_not:$src),
1702 (t2MVNi t2_so_imm_not:$src)>;
1704 //===----------------------------------------------------------------------===//
1705 // Multiply Instructions.
1707 let isCommutable = 1 in
1708 def t2MUL: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1709 "mul", "\t$dst, $a, $b",
1710 [(set rGPR:$dst, (mul rGPR:$a, rGPR:$b))]> {
1711 let Inst{31-27} = 0b11111;
1712 let Inst{26-23} = 0b0110;
1713 let Inst{22-20} = 0b000;
1714 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1715 let Inst{7-4} = 0b0000; // Multiply
1718 def t2MLA: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1719 "mla", "\t$dst, $a, $b, $c",
1720 [(set rGPR:$dst, (add (mul rGPR:$a, rGPR:$b), rGPR:$c))]> {
1721 let Inst{31-27} = 0b11111;
1722 let Inst{26-23} = 0b0110;
1723 let Inst{22-20} = 0b000;
1724 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1725 let Inst{7-4} = 0b0000; // Multiply
1728 def t2MLS: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1729 "mls", "\t$dst, $a, $b, $c",
1730 [(set rGPR:$dst, (sub rGPR:$c, (mul rGPR:$a, rGPR:$b)))]> {
1731 let Inst{31-27} = 0b11111;
1732 let Inst{26-23} = 0b0110;
1733 let Inst{22-20} = 0b000;
1734 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1735 let Inst{7-4} = 0b0001; // Multiply and Subtract
1738 // Extra precision multiplies with low / high results
1739 let neverHasSideEffects = 1 in {
1740 let isCommutable = 1 in {
1741 def t2SMULL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1742 (ins rGPR:$a, rGPR:$b), IIC_iMUL64,
1743 "smull", "\t$ldst, $hdst, $a, $b", []> {
1744 let Inst{31-27} = 0b11111;
1745 let Inst{26-23} = 0b0111;
1746 let Inst{22-20} = 0b000;
1747 let Inst{7-4} = 0b0000;
1750 def t2UMULL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1751 (ins rGPR:$a, rGPR:$b), IIC_iMUL64,
1752 "umull", "\t$ldst, $hdst, $a, $b", []> {
1753 let Inst{31-27} = 0b11111;
1754 let Inst{26-23} = 0b0111;
1755 let Inst{22-20} = 0b010;
1756 let Inst{7-4} = 0b0000;
1760 // Multiply + accumulate
1761 def t2SMLAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1762 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1763 "smlal", "\t$ldst, $hdst, $a, $b", []>{
1764 let Inst{31-27} = 0b11111;
1765 let Inst{26-23} = 0b0111;
1766 let Inst{22-20} = 0b100;
1767 let Inst{7-4} = 0b0000;
1770 def t2UMLAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1771 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1772 "umlal", "\t$ldst, $hdst, $a, $b", []>{
1773 let Inst{31-27} = 0b11111;
1774 let Inst{26-23} = 0b0111;
1775 let Inst{22-20} = 0b110;
1776 let Inst{7-4} = 0b0000;
1779 def t2UMAAL : T2I<(outs rGPR:$ldst, rGPR:$hdst),
1780 (ins rGPR:$a, rGPR:$b), IIC_iMAC64,
1781 "umaal", "\t$ldst, $hdst, $a, $b", []>{
1782 let Inst{31-27} = 0b11111;
1783 let Inst{26-23} = 0b0111;
1784 let Inst{22-20} = 0b110;
1785 let Inst{7-4} = 0b0110;
1787 } // neverHasSideEffects
1789 // Rounding variants of the below included for disassembly only
1791 // Most significant word multiply
1792 def t2SMMUL : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1793 "smmul", "\t$dst, $a, $b",
1794 [(set rGPR:$dst, (mulhs rGPR:$a, rGPR:$b))]> {
1795 let Inst{31-27} = 0b11111;
1796 let Inst{26-23} = 0b0110;
1797 let Inst{22-20} = 0b101;
1798 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1799 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1802 def t2SMMULR : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1803 "smmulr", "\t$dst, $a, $b", []> {
1804 let Inst{31-27} = 0b11111;
1805 let Inst{26-23} = 0b0110;
1806 let Inst{22-20} = 0b101;
1807 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1808 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1811 def t2SMMLA : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1812 "smmla", "\t$dst, $a, $b, $c",
1813 [(set rGPR:$dst, (add (mulhs rGPR:$a, rGPR:$b), rGPR:$c))]> {
1814 let Inst{31-27} = 0b11111;
1815 let Inst{26-23} = 0b0110;
1816 let Inst{22-20} = 0b101;
1817 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1818 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1821 def t2SMMLAR: T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1822 "smmlar", "\t$dst, $a, $b, $c", []> {
1823 let Inst{31-27} = 0b11111;
1824 let Inst{26-23} = 0b0110;
1825 let Inst{22-20} = 0b101;
1826 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1827 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1830 def t2SMMLS: T2I <(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1831 "smmls", "\t$dst, $a, $b, $c",
1832 [(set rGPR:$dst, (sub rGPR:$c, (mulhs rGPR:$a, rGPR:$b)))]> {
1833 let Inst{31-27} = 0b11111;
1834 let Inst{26-23} = 0b0110;
1835 let Inst{22-20} = 0b110;
1836 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1837 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
1840 def t2SMMLSR:T2I <(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$c), IIC_iMAC32,
1841 "smmlsr", "\t$dst, $a, $b, $c", []> {
1842 let Inst{31-27} = 0b11111;
1843 let Inst{26-23} = 0b0110;
1844 let Inst{22-20} = 0b110;
1845 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1846 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
1849 multiclass T2I_smul<string opc, PatFrag opnode> {
1850 def BB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1851 !strconcat(opc, "bb"), "\t$dst, $a, $b",
1852 [(set rGPR:$dst, (opnode (sext_inreg rGPR:$a, i16),
1853 (sext_inreg rGPR:$b, i16)))]> {
1854 let Inst{31-27} = 0b11111;
1855 let Inst{26-23} = 0b0110;
1856 let Inst{22-20} = 0b001;
1857 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1858 let Inst{7-6} = 0b00;
1859 let Inst{5-4} = 0b00;
1862 def BT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1863 !strconcat(opc, "bt"), "\t$dst, $a, $b",
1864 [(set rGPR:$dst, (opnode (sext_inreg rGPR:$a, i16),
1865 (sra rGPR:$b, (i32 16))))]> {
1866 let Inst{31-27} = 0b11111;
1867 let Inst{26-23} = 0b0110;
1868 let Inst{22-20} = 0b001;
1869 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1870 let Inst{7-6} = 0b00;
1871 let Inst{5-4} = 0b01;
1874 def TB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1875 !strconcat(opc, "tb"), "\t$dst, $a, $b",
1876 [(set rGPR:$dst, (opnode (sra rGPR:$a, (i32 16)),
1877 (sext_inreg rGPR:$b, i16)))]> {
1878 let Inst{31-27} = 0b11111;
1879 let Inst{26-23} = 0b0110;
1880 let Inst{22-20} = 0b001;
1881 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1882 let Inst{7-6} = 0b00;
1883 let Inst{5-4} = 0b10;
1886 def TT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL32,
1887 !strconcat(opc, "tt"), "\t$dst, $a, $b",
1888 [(set rGPR:$dst, (opnode (sra rGPR:$a, (i32 16)),
1889 (sra rGPR:$b, (i32 16))))]> {
1890 let Inst{31-27} = 0b11111;
1891 let Inst{26-23} = 0b0110;
1892 let Inst{22-20} = 0b001;
1893 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1894 let Inst{7-6} = 0b00;
1895 let Inst{5-4} = 0b11;
1898 def WB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1899 !strconcat(opc, "wb"), "\t$dst, $a, $b",
1900 [(set rGPR:$dst, (sra (opnode rGPR:$a,
1901 (sext_inreg rGPR:$b, i16)), (i32 16)))]> {
1902 let Inst{31-27} = 0b11111;
1903 let Inst{26-23} = 0b0110;
1904 let Inst{22-20} = 0b011;
1905 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1906 let Inst{7-6} = 0b00;
1907 let Inst{5-4} = 0b00;
1910 def WT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iMUL16,
1911 !strconcat(opc, "wt"), "\t$dst, $a, $b",
1912 [(set rGPR:$dst, (sra (opnode rGPR:$a,
1913 (sra rGPR:$b, (i32 16))), (i32 16)))]> {
1914 let Inst{31-27} = 0b11111;
1915 let Inst{26-23} = 0b0110;
1916 let Inst{22-20} = 0b011;
1917 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
1918 let Inst{7-6} = 0b00;
1919 let Inst{5-4} = 0b01;
1924 multiclass T2I_smla<string opc, PatFrag opnode> {
1925 def BB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1926 !strconcat(opc, "bb"), "\t$dst, $a, $b, $acc",
1927 [(set rGPR:$dst, (add rGPR:$acc,
1928 (opnode (sext_inreg rGPR:$a, i16),
1929 (sext_inreg rGPR:$b, i16))))]> {
1930 let Inst{31-27} = 0b11111;
1931 let Inst{26-23} = 0b0110;
1932 let Inst{22-20} = 0b001;
1933 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1934 let Inst{7-6} = 0b00;
1935 let Inst{5-4} = 0b00;
1938 def BT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1939 !strconcat(opc, "bt"), "\t$dst, $a, $b, $acc",
1940 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sext_inreg rGPR:$a, i16),
1941 (sra rGPR:$b, (i32 16)))))]> {
1942 let Inst{31-27} = 0b11111;
1943 let Inst{26-23} = 0b0110;
1944 let Inst{22-20} = 0b001;
1945 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1946 let Inst{7-6} = 0b00;
1947 let Inst{5-4} = 0b01;
1950 def TB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1951 !strconcat(opc, "tb"), "\t$dst, $a, $b, $acc",
1952 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sra rGPR:$a, (i32 16)),
1953 (sext_inreg rGPR:$b, i16))))]> {
1954 let Inst{31-27} = 0b11111;
1955 let Inst{26-23} = 0b0110;
1956 let Inst{22-20} = 0b001;
1957 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1958 let Inst{7-6} = 0b00;
1959 let Inst{5-4} = 0b10;
1962 def TT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1963 !strconcat(opc, "tt"), "\t$dst, $a, $b, $acc",
1964 [(set rGPR:$dst, (add rGPR:$acc, (opnode (sra rGPR:$a, (i32 16)),
1965 (sra rGPR:$b, (i32 16)))))]> {
1966 let Inst{31-27} = 0b11111;
1967 let Inst{26-23} = 0b0110;
1968 let Inst{22-20} = 0b001;
1969 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1970 let Inst{7-6} = 0b00;
1971 let Inst{5-4} = 0b11;
1974 def WB : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1975 !strconcat(opc, "wb"), "\t$dst, $a, $b, $acc",
1976 [(set rGPR:$dst, (add rGPR:$acc, (sra (opnode rGPR:$a,
1977 (sext_inreg rGPR:$b, i16)), (i32 16))))]> {
1978 let Inst{31-27} = 0b11111;
1979 let Inst{26-23} = 0b0110;
1980 let Inst{22-20} = 0b011;
1981 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1982 let Inst{7-6} = 0b00;
1983 let Inst{5-4} = 0b00;
1986 def WT : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC16,
1987 !strconcat(opc, "wt"), "\t$dst, $a, $b, $acc",
1988 [(set rGPR:$dst, (add rGPR:$acc, (sra (opnode rGPR:$a,
1989 (sra rGPR:$b, (i32 16))), (i32 16))))]> {
1990 let Inst{31-27} = 0b11111;
1991 let Inst{26-23} = 0b0110;
1992 let Inst{22-20} = 0b011;
1993 let Inst{15-12} = {?, ?, ?, ?}; // Ra
1994 let Inst{7-6} = 0b00;
1995 let Inst{5-4} = 0b01;
1999 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2000 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2002 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2003 def t2SMLALBB : T2I_mac<1, 0b100, 0b1000, (outs rGPR:$ldst,rGPR:$hdst),
2004 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlalbb", "\t$ldst, $hdst, $a, $b",
2005 [/* For disassembly only; pattern left blank */]>;
2006 def t2SMLALBT : T2I_mac<1, 0b100, 0b1001, (outs rGPR:$ldst,rGPR:$hdst),
2007 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlalbt", "\t$ldst, $hdst, $a, $b",
2008 [/* For disassembly only; pattern left blank */]>;
2009 def t2SMLALTB : T2I_mac<1, 0b100, 0b1010, (outs rGPR:$ldst,rGPR:$hdst),
2010 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaltb", "\t$ldst, $hdst, $a, $b",
2011 [/* For disassembly only; pattern left blank */]>;
2012 def t2SMLALTT : T2I_mac<1, 0b100, 0b1011, (outs rGPR:$ldst,rGPR:$hdst),
2013 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaltt", "\t$ldst, $hdst, $a, $b",
2014 [/* For disassembly only; pattern left blank */]>;
2016 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2017 // These are for disassembly only.
2019 def t2SMUAD: T2I_mac<0, 0b010, 0b0000, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2020 IIC_iMAC32, "smuad", "\t$dst, $a, $b", []> {
2021 let Inst{15-12} = 0b1111;
2023 def t2SMUADX:T2I_mac<0, 0b010, 0b0001, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2024 IIC_iMAC32, "smuadx", "\t$dst, $a, $b", []> {
2025 let Inst{15-12} = 0b1111;
2027 def t2SMUSD: T2I_mac<0, 0b100, 0b0000, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2028 IIC_iMAC32, "smusd", "\t$dst, $a, $b", []> {
2029 let Inst{15-12} = 0b1111;
2031 def t2SMUSDX:T2I_mac<0, 0b100, 0b0001, (outs rGPR:$dst), (ins rGPR:$a, rGPR:$b),
2032 IIC_iMAC32, "smusdx", "\t$dst, $a, $b", []> {
2033 let Inst{15-12} = 0b1111;
2035 def t2SMLAD : T2I_mac<0, 0b010, 0b0000, (outs rGPR:$dst),
2036 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlad",
2037 "\t$dst, $a, $b, $acc", []>;
2038 def t2SMLADX : T2I_mac<0, 0b010, 0b0001, (outs rGPR:$dst),
2039 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smladx",
2040 "\t$dst, $a, $b, $acc", []>;
2041 def t2SMLSD : T2I_mac<0, 0b100, 0b0000, (outs rGPR:$dst),
2042 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlsd",
2043 "\t$dst, $a, $b, $acc", []>;
2044 def t2SMLSDX : T2I_mac<0, 0b100, 0b0001, (outs rGPR:$dst),
2045 (ins rGPR:$a, rGPR:$b, rGPR:$acc), IIC_iMAC32, "smlsdx",
2046 "\t$dst, $a, $b, $acc", []>;
2047 def t2SMLALD : T2I_mac<1, 0b100, 0b1100, (outs rGPR:$ldst,rGPR:$hdst),
2048 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlald",
2049 "\t$ldst, $hdst, $a, $b", []>;
2050 def t2SMLALDX : T2I_mac<1, 0b100, 0b1101, (outs rGPR:$ldst,rGPR:$hdst),
2051 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlaldx",
2052 "\t$ldst, $hdst, $a, $b", []>;
2053 def t2SMLSLD : T2I_mac<1, 0b101, 0b1100, (outs rGPR:$ldst,rGPR:$hdst),
2054 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlsld",
2055 "\t$ldst, $hdst, $a, $b", []>;
2056 def t2SMLSLDX : T2I_mac<1, 0b101, 0b1101, (outs rGPR:$ldst,rGPR:$hdst),
2057 (ins rGPR:$a,rGPR:$b), IIC_iMAC64, "smlsldx",
2058 "\t$ldst, $hdst, $a, $b", []>;
2060 //===----------------------------------------------------------------------===//
2061 // Misc. Arithmetic Instructions.
2064 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2065 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2066 : T2I<oops, iops, itin, opc, asm, pattern> {
2067 let Inst{31-27} = 0b11111;
2068 let Inst{26-22} = 0b01010;
2069 let Inst{21-20} = op1;
2070 let Inst{15-12} = 0b1111;
2071 let Inst{7-6} = 0b10;
2072 let Inst{5-4} = op2;
2075 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2076 "clz", "\t$dst, $src", [(set rGPR:$dst, (ctlz rGPR:$src))]>;
2078 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2079 "rbit", "\t$dst, $src",
2080 [(set rGPR:$dst, (ARMrbit rGPR:$src))]>;
2082 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2083 "rev", ".w\t$dst, $src", [(set rGPR:$dst, (bswap rGPR:$src))]>;
2085 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2086 "rev16", ".w\t$dst, $src",
2088 (or (and (srl rGPR:$src, (i32 8)), 0xFF),
2089 (or (and (shl rGPR:$src, (i32 8)), 0xFF00),
2090 (or (and (srl rGPR:$src, (i32 8)), 0xFF0000),
2091 (and (shl rGPR:$src, (i32 8)), 0xFF000000)))))]>;
2093 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$dst), (ins rGPR:$src), IIC_iUNAr,
2094 "revsh", ".w\t$dst, $src",
2097 (or (srl (and rGPR:$src, 0xFF00), (i32 8)),
2098 (shl rGPR:$src, (i32 8))), i16))]>;
2100 def t2PKHBT : T2I<(outs rGPR:$dst), (ins rGPR:$src1, rGPR:$src2, shift_imm:$sh),
2101 IIC_iALUsi, "pkhbt", "\t$dst, $src1, $src2$sh",
2102 [(set rGPR:$dst, (or (and rGPR:$src1, 0xFFFF),
2103 (and (shl rGPR:$src2, lsl_amt:$sh),
2105 Requires<[HasT2ExtractPack]> {
2106 let Inst{31-27} = 0b11101;
2107 let Inst{26-25} = 0b01;
2108 let Inst{24-20} = 0b01100;
2109 let Inst{5} = 0; // BT form
2113 // Alternate cases for PKHBT where identities eliminate some nodes.
2114 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2115 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2116 Requires<[HasT2ExtractPack]>;
2117 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2118 (t2PKHBT rGPR:$src1, rGPR:$src2, (lsl_shift_imm imm16_31:$sh))>,
2119 Requires<[HasT2ExtractPack]>;
2121 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2122 // will match the pattern below.
2123 def t2PKHTB : T2I<(outs rGPR:$dst), (ins rGPR:$src1, rGPR:$src2, shift_imm:$sh),
2124 IIC_iALUsi, "pkhtb", "\t$dst, $src1, $src2$sh",
2125 [(set rGPR:$dst, (or (and rGPR:$src1, 0xFFFF0000),
2126 (and (sra rGPR:$src2, asr_amt:$sh),
2128 Requires<[HasT2ExtractPack]> {
2129 let Inst{31-27} = 0b11101;
2130 let Inst{26-25} = 0b01;
2131 let Inst{24-20} = 0b01100;
2132 let Inst{5} = 1; // TB form
2136 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2137 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2138 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2139 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm16_31:$sh))>,
2140 Requires<[HasT2ExtractPack]>;
2141 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2142 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2143 (t2PKHTB rGPR:$src1, rGPR:$src2, (asr_shift_imm imm1_15:$sh))>,
2144 Requires<[HasT2ExtractPack]>;
2146 //===----------------------------------------------------------------------===//
2147 // Comparison Instructions...
2149 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2150 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2151 defm t2CMPz : T2I_cmp_irs<0b1101, "cmp",
2152 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
2154 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2155 // Compare-to-zero still works out, just not the relationals
2156 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2157 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2158 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2159 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2161 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2162 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2164 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2165 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2167 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2168 BinOpFrag<(ARMcmpZ (and node:$LHS, node:$RHS), 0)>>;
2169 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2170 BinOpFrag<(ARMcmpZ (xor node:$LHS, node:$RHS), 0)>>;
2172 // Conditional moves
2173 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2174 // a two-value operand where a dag node expects two operands. :(
2175 let neverHasSideEffects = 1 in {
2176 def t2MOVCCr : T2I<(outs rGPR:$dst), (ins rGPR:$false, rGPR:$true), IIC_iCMOVr,
2177 "mov", ".w\t$dst, $true",
2178 [/*(set rGPR:$dst, (ARMcmov rGPR:$false, rGPR:$true, imm:$cc, CCR:$ccr))*/]>,
2179 RegConstraint<"$false = $dst"> {
2180 let Inst{31-27} = 0b11101;
2181 let Inst{26-25} = 0b01;
2182 let Inst{24-21} = 0b0010;
2183 let Inst{20} = 0; // The S bit.
2184 let Inst{19-16} = 0b1111; // Rn
2185 let Inst{14-12} = 0b000;
2186 let Inst{7-4} = 0b0000;
2189 def t2MOVCCi : T2I<(outs rGPR:$dst), (ins rGPR:$false, t2_so_imm:$true),
2190 IIC_iCMOVi, "mov", ".w\t$dst, $true",
2191 [/*(set rGPR:$dst,(ARMcmov rGPR:$false,t2_so_imm:$true, imm:$cc, CCR:$ccr))*/]>,
2192 RegConstraint<"$false = $dst"> {
2193 let Inst{31-27} = 0b11110;
2195 let Inst{24-21} = 0b0010;
2196 let Inst{20} = 0; // The S bit.
2197 let Inst{19-16} = 0b1111; // Rn
2201 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2202 string opc, string asm, list<dag> pattern>
2203 : T2I<oops, iops, itin, opc, asm, pattern> {
2204 let Inst{31-27} = 0b11101;
2205 let Inst{26-25} = 0b01;
2206 let Inst{24-21} = 0b0010;
2207 let Inst{20} = 0; // The S bit.
2208 let Inst{19-16} = 0b1111; // Rn
2209 let Inst{5-4} = opcod; // Shift type.
2211 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$dst),
2212 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2213 IIC_iCMOVsi, "lsl", ".w\t$dst, $true, $rhs", []>,
2214 RegConstraint<"$false = $dst">;
2215 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$dst),
2216 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2217 IIC_iCMOVsi, "lsr", ".w\t$dst, $true, $rhs", []>,
2218 RegConstraint<"$false = $dst">;
2219 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$dst),
2220 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2221 IIC_iCMOVsi, "asr", ".w\t$dst, $true, $rhs", []>,
2222 RegConstraint<"$false = $dst">;
2223 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$dst),
2224 (ins rGPR:$false, rGPR:$true, i32imm:$rhs),
2225 IIC_iCMOVsi, "ror", ".w\t$dst, $true, $rhs", []>,
2226 RegConstraint<"$false = $dst">;
2227 } // neverHasSideEffects
2229 //===----------------------------------------------------------------------===//
2230 // Atomic operations intrinsics
2233 // memory barriers protect the atomic sequences
2234 let hasSideEffects = 1 in {
2235 def t2DMBsy : AInoP<(outs), (ins), ThumbFrm, NoItinerary, "dmb", "",
2236 [(ARMMemBarrier)]>, Requires<[IsThumb, HasDB]> {
2237 let Inst{31-4} = 0xF3BF8F5;
2238 // FIXME: add support for options other than a full system DMB
2239 let Inst{3-0} = 0b1111;
2242 def t2DSBsy : AInoP<(outs), (ins), ThumbFrm, NoItinerary, "dsb", "",
2243 [(ARMSyncBarrier)]>, Requires<[IsThumb, HasDB]> {
2244 let Inst{31-4} = 0xF3BF8F4;
2245 // FIXME: add support for options other than a full system DSB
2246 let Inst{3-0} = 0b1111;
2250 // Helper class for multiclass T2MemB -- for disassembly only
2251 class T2I_memb<string opc, string asm>
2252 : T2I<(outs), (ins), NoItinerary, opc, asm,
2253 [/* For disassembly only; pattern left blank */]>,
2254 Requires<[IsThumb2, HasV7]> {
2255 let Inst{31-20} = 0xf3b;
2256 let Inst{15-14} = 0b10;
2260 multiclass T2MemB<bits<4> op7_4, string opc> {
2262 def st : T2I_memb<opc, "\tst"> {
2263 let Inst{7-4} = op7_4;
2264 let Inst{3-0} = 0b1110;
2267 def ish : T2I_memb<opc, "\tish"> {
2268 let Inst{7-4} = op7_4;
2269 let Inst{3-0} = 0b1011;
2272 def ishst : T2I_memb<opc, "\tishst"> {
2273 let Inst{7-4} = op7_4;
2274 let Inst{3-0} = 0b1010;
2277 def nsh : T2I_memb<opc, "\tnsh"> {
2278 let Inst{7-4} = op7_4;
2279 let Inst{3-0} = 0b0111;
2282 def nshst : T2I_memb<opc, "\tnshst"> {
2283 let Inst{7-4} = op7_4;
2284 let Inst{3-0} = 0b0110;
2287 def osh : T2I_memb<opc, "\tosh"> {
2288 let Inst{7-4} = op7_4;
2289 let Inst{3-0} = 0b0011;
2292 def oshst : T2I_memb<opc, "\toshst"> {
2293 let Inst{7-4} = op7_4;
2294 let Inst{3-0} = 0b0010;
2298 // These DMB variants are for disassembly only.
2299 defm t2DMB : T2MemB<0b0101, "dmb">;
2301 // These DSB variants are for disassembly only.
2302 defm t2DSB : T2MemB<0b0100, "dsb">;
2304 // ISB has only full system option -- for disassembly only
2305 def t2ISBsy : T2I_memb<"isb", ""> {
2306 let Inst{7-4} = 0b0110;
2307 let Inst{3-0} = 0b1111;
2310 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2311 InstrItinClass itin, string opc, string asm, string cstr,
2312 list<dag> pattern, bits<4> rt2 = 0b1111>
2313 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2314 let Inst{31-27} = 0b11101;
2315 let Inst{26-20} = 0b0001101;
2316 let Inst{11-8} = rt2;
2317 let Inst{7-6} = 0b01;
2318 let Inst{5-4} = opcod;
2319 let Inst{3-0} = 0b1111;
2321 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, SizeFlagVal sz,
2322 InstrItinClass itin, string opc, string asm, string cstr,
2323 list<dag> pattern, bits<4> rt2 = 0b1111>
2324 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2325 let Inst{31-27} = 0b11101;
2326 let Inst{26-20} = 0b0001100;
2327 let Inst{11-8} = rt2;
2328 let Inst{7-6} = 0b01;
2329 let Inst{5-4} = opcod;
2332 let mayLoad = 1 in {
2333 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2334 Size4Bytes, NoItinerary, "ldrexb", "\t$dest, [$ptr]",
2336 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2337 Size4Bytes, NoItinerary, "ldrexh", "\t$dest, [$ptr]",
2339 def t2LDREX : Thumb2I<(outs rGPR:$dest), (ins rGPR:$ptr), AddrModeNone,
2340 Size4Bytes, NoItinerary,
2341 "ldrex", "\t$dest, [$ptr]", "",
2343 let Inst{31-27} = 0b11101;
2344 let Inst{26-20} = 0b0000101;
2345 let Inst{11-8} = 0b1111;
2346 let Inst{7-0} = 0b00000000; // imm8 = 0
2348 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$dest, rGPR:$dest2), (ins rGPR:$ptr),
2349 AddrModeNone, Size4Bytes, NoItinerary,
2350 "ldrexd", "\t$dest, $dest2, [$ptr]", "",
2354 let mayStore = 1, Constraints = "@earlyclobber $success" in {
2355 def t2STREXB : T2I_strex<0b00, (outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2356 AddrModeNone, Size4Bytes, NoItinerary,
2357 "strexb", "\t$success, $src, [$ptr]", "", []>;
2358 def t2STREXH : T2I_strex<0b01, (outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2359 AddrModeNone, Size4Bytes, NoItinerary,
2360 "strexh", "\t$success, $src, [$ptr]", "", []>;
2361 def t2STREX : Thumb2I<(outs rGPR:$success), (ins rGPR:$src, rGPR:$ptr),
2362 AddrModeNone, Size4Bytes, NoItinerary,
2363 "strex", "\t$success, $src, [$ptr]", "",
2365 let Inst{31-27} = 0b11101;
2366 let Inst{26-20} = 0b0000100;
2367 let Inst{7-0} = 0b00000000; // imm8 = 0
2369 def t2STREXD : T2I_strex<0b11, (outs rGPR:$success),
2370 (ins rGPR:$src, rGPR:$src2, rGPR:$ptr),
2371 AddrModeNone, Size4Bytes, NoItinerary,
2372 "strexd", "\t$success, $src, $src2, [$ptr]", "", [],
2376 // Clear-Exclusive is for disassembly only.
2377 def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "",
2378 [/* For disassembly only; pattern left blank */]>,
2379 Requires<[IsARM, HasV7]> {
2380 let Inst{31-20} = 0xf3b;
2381 let Inst{15-14} = 0b10;
2383 let Inst{7-4} = 0b0010;
2386 //===----------------------------------------------------------------------===//
2390 // __aeabi_read_tp preserves the registers r1-r3.
2392 Defs = [R0, R12, LR, CPSR] in {
2393 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
2394 "bl\t__aeabi_read_tp",
2395 [(set R0, ARMthread_pointer)]> {
2396 let Inst{31-27} = 0b11110;
2397 let Inst{15-14} = 0b11;
2402 //===----------------------------------------------------------------------===//
2403 // SJLJ Exception handling intrinsics
2404 // eh_sjlj_setjmp() is an instruction sequence to store the return
2405 // address and save #0 in R0 for the non-longjmp case.
2406 // Since by its nature we may be coming from some other function to get
2407 // here, and we're using the stack frame for the containing function to
2408 // save/restore registers, we can't keep anything live in regs across
2409 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2410 // when we get here from a longjmp(). We force everthing out of registers
2411 // except for our own input by listing the relevant registers in Defs. By
2412 // doing so, we also cause the prologue/epilogue code to actively preserve
2413 // all of the callee-saved resgisters, which is exactly what we want.
2414 // $val is a scratch register for our use.
2416 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
2417 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
2418 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
2419 D31 ], hasSideEffects = 1, isBarrier = 1 in {
2420 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2421 AddrModeNone, SizeSpecial, NoItinerary,
2422 "mov\t$val, pc\t${:comment} begin eh.setjmp\n\t"
2423 "adds\t$val, #7\n\t"
2424 "str\t$val, [$src, #4]\n\t"
2427 "movs\tr0, #1\t${:comment} end eh.setjmp\n\t"
2429 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2430 Requires<[IsThumb2, HasVFP2]>;
2434 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
2435 hasSideEffects = 1, isBarrier = 1 in {
2436 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2437 AddrModeNone, SizeSpecial, NoItinerary,
2438 "mov\t$val, pc\t${:comment} begin eh.setjmp\n\t"
2439 "adds\t$val, #7\n\t"
2440 "str\t$val, [$src, #4]\n\t"
2443 "movs\tr0, #1\t${:comment} end eh.setjmp\n\t"
2445 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2446 Requires<[IsThumb2, NoVFP]>;
2450 //===----------------------------------------------------------------------===//
2451 // Control-Flow Instructions
2454 // FIXME: remove when we have a way to marking a MI with these properties.
2455 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
2457 // FIXME: Should pc be an implicit operand like PICADD, etc?
2458 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2459 hasExtraDefRegAllocReq = 1 in
2460 def t2LDM_RET : T2XIt<(outs GPR:$wb), (ins addrmode4:$addr, pred:$p,
2461 reglist:$dsts, variable_ops), IIC_Br,
2462 "ldm${addr:submode}${p}${addr:wide}\t$addr!, $dsts",
2463 "$addr.addr = $wb", []> {
2464 let Inst{31-27} = 0b11101;
2465 let Inst{26-25} = 0b00;
2466 let Inst{24-23} = {?, ?}; // IA: '01', DB: '10'
2468 let Inst{21} = 1; // The W bit.
2469 let Inst{20} = 1; // Load
2472 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2473 let isPredicable = 1 in
2474 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
2476 [(br bb:$target)]> {
2477 let Inst{31-27} = 0b11110;
2478 let Inst{15-14} = 0b10;
2482 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2485 (ins GPR:$target, GPR:$index, jt2block_operand:$jt, i32imm:$id),
2486 IIC_Br, "mov\tpc, $target$jt",
2487 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]> {
2488 let Inst{31-27} = 0b11101;
2489 let Inst{26-20} = 0b0100100;
2490 let Inst{19-16} = 0b1111;
2491 let Inst{14-12} = 0b000;
2492 let Inst{11-8} = 0b1111; // Rd = pc
2493 let Inst{7-4} = 0b0000;
2496 // FIXME: Add a non-pc based case that can be predicated.
2499 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2500 IIC_Br, "tbb\t$index$jt", []> {
2501 let Inst{31-27} = 0b11101;
2502 let Inst{26-20} = 0b0001101;
2503 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2504 let Inst{15-8} = 0b11110000;
2505 let Inst{7-4} = 0b0000; // B form
2510 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
2511 IIC_Br, "tbh\t$index$jt", []> {
2512 let Inst{31-27} = 0b11101;
2513 let Inst{26-20} = 0b0001101;
2514 let Inst{19-16} = 0b1111; // Rn = pc (table follows this instruction)
2515 let Inst{15-8} = 0b11110000;
2516 let Inst{7-4} = 0b0001; // H form
2519 // Generic versions of the above two instructions, for disassembly only
2521 def t2TBBgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2522 "tbb", "\t[$a, $b]", []>{
2523 let Inst{31-27} = 0b11101;
2524 let Inst{26-20} = 0b0001101;
2525 let Inst{15-8} = 0b11110000;
2526 let Inst{7-4} = 0b0000; // B form
2529 def t2TBHgen : T2I<(outs), (ins GPR:$a, GPR:$b), IIC_Br,
2530 "tbh", "\t[$a, $b, lsl #1]", []> {
2531 let Inst{31-27} = 0b11101;
2532 let Inst{26-20} = 0b0001101;
2533 let Inst{15-8} = 0b11110000;
2534 let Inst{7-4} = 0b0001; // H form
2536 } // isNotDuplicable, isIndirectBranch
2538 } // isBranch, isTerminator, isBarrier
2540 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
2541 // a two-value operand where a dag node expects two operands. :(
2542 let isBranch = 1, isTerminator = 1 in
2543 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
2545 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
2546 let Inst{31-27} = 0b11110;
2547 let Inst{15-14} = 0b10;
2553 let Defs = [ITSTATE] in
2554 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
2555 AddrModeNone, Size2Bytes, IIC_iALUx,
2556 "it$mask\t$cc", "", []> {
2557 // 16-bit instruction.
2558 let Inst{31-16} = 0x0000;
2559 let Inst{15-8} = 0b10111111;
2562 // Branch and Exchange Jazelle -- for disassembly only
2564 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
2565 [/* For disassembly only; pattern left blank */]> {
2566 let Inst{31-27} = 0b11110;
2568 let Inst{25-20} = 0b111100;
2569 let Inst{15-14} = 0b10;
2573 // Change Processor State is a system instruction -- for disassembly only.
2574 // The singleton $opt operand contains the following information:
2575 // opt{4-0} = mode from Inst{4-0}
2576 // opt{5} = changemode from Inst{17}
2577 // opt{8-6} = AIF from Inst{8-6}
2578 // opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
2579 def t2CPS : T2XI<(outs),(ins cps_opt:$opt), NoItinerary, "cps$opt",
2580 [/* For disassembly only; pattern left blank */]> {
2581 let Inst{31-27} = 0b11110;
2583 let Inst{25-20} = 0b111010;
2584 let Inst{15-14} = 0b10;
2588 // A6.3.4 Branches and miscellaneous control
2589 // Table A6-14 Change Processor State, and hint instructions
2590 // Helper class for disassembly only.
2591 class T2I_hint<bits<8> op7_0, string opc, string asm>
2592 : T2I<(outs), (ins), NoItinerary, opc, asm,
2593 [/* For disassembly only; pattern left blank */]> {
2594 let Inst{31-20} = 0xf3a;
2595 let Inst{15-14} = 0b10;
2597 let Inst{10-8} = 0b000;
2598 let Inst{7-0} = op7_0;
2601 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
2602 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
2603 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
2604 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
2605 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
2607 def t2DBG : T2I<(outs),(ins i32imm:$opt), NoItinerary, "dbg", "\t$opt",
2608 [/* For disassembly only; pattern left blank */]> {
2609 let Inst{31-20} = 0xf3a;
2610 let Inst{15-14} = 0b10;
2612 let Inst{10-8} = 0b000;
2613 let Inst{7-4} = 0b1111;
2616 // Secure Monitor Call is a system instruction -- for disassembly only
2617 // Option = Inst{19-16}
2618 def t2SMC : T2I<(outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
2619 [/* For disassembly only; pattern left blank */]> {
2620 let Inst{31-27} = 0b11110;
2621 let Inst{26-20} = 0b1111111;
2622 let Inst{15-12} = 0b1000;
2625 // Store Return State is a system instruction -- for disassembly only
2626 def t2SRSDBW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
2627 [/* For disassembly only; pattern left blank */]> {
2628 let Inst{31-27} = 0b11101;
2629 let Inst{26-20} = 0b0000010; // W = 1
2632 def t2SRSDB : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
2633 [/* For disassembly only; pattern left blank */]> {
2634 let Inst{31-27} = 0b11101;
2635 let Inst{26-20} = 0b0000000; // W = 0
2638 def t2SRSIAW : T2I<(outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
2639 [/* For disassembly only; pattern left blank */]> {
2640 let Inst{31-27} = 0b11101;
2641 let Inst{26-20} = 0b0011010; // W = 1
2644 def t2SRSIA : T2I<(outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
2645 [/* For disassembly only; pattern left blank */]> {
2646 let Inst{31-27} = 0b11101;
2647 let Inst{26-20} = 0b0011000; // W = 0
2650 // Return From Exception is a system instruction -- for disassembly only
2651 def t2RFEDBW : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfedb", "\t$base!",
2652 [/* For disassembly only; pattern left blank */]> {
2653 let Inst{31-27} = 0b11101;
2654 let Inst{26-20} = 0b0000011; // W = 1
2657 def t2RFEDB : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeab", "\t$base",
2658 [/* For disassembly only; pattern left blank */]> {
2659 let Inst{31-27} = 0b11101;
2660 let Inst{26-20} = 0b0000001; // W = 0
2663 def t2RFEIAW : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeia", "\t$base!",
2664 [/* For disassembly only; pattern left blank */]> {
2665 let Inst{31-27} = 0b11101;
2666 let Inst{26-20} = 0b0011011; // W = 1
2669 def t2RFEIA : T2I<(outs), (ins rGPR:$base), NoItinerary, "rfeia", "\t$base",
2670 [/* For disassembly only; pattern left blank */]> {
2671 let Inst{31-27} = 0b11101;
2672 let Inst{26-20} = 0b0011001; // W = 0
2675 //===----------------------------------------------------------------------===//
2676 // Non-Instruction Patterns
2679 // Two piece so_imms.
2680 def : T2Pat<(or rGPR:$LHS, t2_so_imm2part:$RHS),
2681 (t2ORRri (t2ORRri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2682 (t2_so_imm2part_2 imm:$RHS))>;
2683 def : T2Pat<(xor rGPR:$LHS, t2_so_imm2part:$RHS),
2684 (t2EORri (t2EORri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2685 (t2_so_imm2part_2 imm:$RHS))>;
2686 def : T2Pat<(add rGPR:$LHS, t2_so_imm2part:$RHS),
2687 (t2ADDri (t2ADDri rGPR:$LHS, (t2_so_imm2part_1 imm:$RHS)),
2688 (t2_so_imm2part_2 imm:$RHS))>;
2689 def : T2Pat<(add rGPR:$LHS, t2_so_neg_imm2part:$RHS),
2690 (t2SUBri (t2SUBri rGPR:$LHS, (t2_so_neg_imm2part_1 imm:$RHS)),
2691 (t2_so_neg_imm2part_2 imm:$RHS))>;
2693 // 32-bit immediate using movw + movt.
2694 // This is a single pseudo instruction to make it re-materializable. Remove
2695 // when we can do generalized remat.
2696 let isReMaterializable = 1 in
2697 def t2MOVi32imm : T2Ix2<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVi,
2698 "movw", "\t$dst, ${src:lo16}\n\tmovt${p}\t$dst, ${src:hi16}",
2699 [(set rGPR:$dst, (i32 imm:$src))]>;
2701 // ConstantPool, GlobalAddress, and JumpTable
2702 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
2703 Requires<[IsThumb2, DontUseMovt]>;
2704 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
2705 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
2706 Requires<[IsThumb2, UseMovt]>;
2708 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
2709 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
2711 // Pseudo instruction that combines ldr from constpool and add pc. This should
2712 // be expanded into two instructions late to allow if-conversion and
2714 let canFoldAsLoad = 1, isReMaterializable = 1 in
2715 def t2LDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
2717 "${:comment} ldr.w\t$dst, $addr\n$cp:\n\tadd\t$dst, pc",
2718 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
2720 Requires<[IsThumb2]>;
2722 //===----------------------------------------------------------------------===//
2723 // Move between special register and ARM core register -- for disassembly only
2727 def t2MRS : T2I<(outs rGPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, cpsr",
2728 [/* For disassembly only; pattern left blank */]> {
2729 let Inst{31-27} = 0b11110;
2731 let Inst{25-21} = 0b11111;
2732 let Inst{20} = 0; // The R bit.
2733 let Inst{15-14} = 0b10;
2738 def t2MRSsys : T2I<(outs rGPR:$dst), (ins), NoItinerary, "mrs", "\t$dst, spsr",
2739 [/* For disassembly only; pattern left blank */]> {
2740 let Inst{31-27} = 0b11110;
2742 let Inst{25-21} = 0b11111;
2743 let Inst{20} = 1; // The R bit.
2744 let Inst{15-14} = 0b10;
2749 def t2MSR : T2I<(outs), (ins rGPR:$src, msr_mask:$mask), NoItinerary, "msr",
2750 "\tcpsr$mask, $src",
2751 [/* For disassembly only; pattern left blank */]> {
2752 let Inst{31-27} = 0b11110;
2754 let Inst{25-21} = 0b11100;
2755 let Inst{20} = 0; // The R bit.
2756 let Inst{15-14} = 0b10;
2761 def t2MSRsys : T2I<(outs), (ins rGPR:$src, msr_mask:$mask), NoItinerary, "msr",
2762 "\tspsr$mask, $src",
2763 [/* For disassembly only; pattern left blank */]> {
2764 let Inst{31-27} = 0b11110;
2766 let Inst{25-21} = 0b11100;
2767 let Inst{20} = 1; // The R bit.
2768 let Inst{15-14} = 0b10;