1 //===- ARMInstrInfo.td - Target Description for ARM Target -*- tablegen -*-===//
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 ARM instructions in TableGen format.
12 //===----------------------------------------------------------------------===//
14 //===----------------------------------------------------------------------===//
15 // ARM specific DAG Nodes.
19 def SDT_ARMCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32> ]>;
20 def SDT_ARMCallSeqEnd : SDCallSeqEnd<[ SDTCisVT<0, i32>, SDTCisVT<1, i32> ]>;
22 def SDT_ARMSaveCallPC : SDTypeProfile<0, 1, []>;
24 def SDT_ARMcall : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
26 def SDT_ARMCMov : SDTypeProfile<1, 3,
27 [SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>,
30 def SDT_ARMBrcond : SDTypeProfile<0, 2,
31 [SDTCisVT<0, OtherVT>, SDTCisVT<1, i32>]>;
33 def SDT_ARMBrJT : SDTypeProfile<0, 3,
34 [SDTCisPtrTy<0>, SDTCisVT<1, i32>,
37 def SDT_ARMBr2JT : SDTypeProfile<0, 4,
38 [SDTCisPtrTy<0>, SDTCisVT<1, i32>,
39 SDTCisVT<2, i32>, SDTCisVT<3, i32>]>;
41 def SDT_ARMBCC_i64 : SDTypeProfile<0, 6,
43 SDTCisVT<1, i32>, SDTCisVT<2, i32>,
44 SDTCisVT<3, i32>, SDTCisVT<4, i32>,
45 SDTCisVT<5, OtherVT>]>;
47 def SDT_ARMAnd : SDTypeProfile<1, 2,
48 [SDTCisVT<0, i32>, SDTCisVT<1, i32>,
51 def SDT_ARMCmp : SDTypeProfile<0, 2, [SDTCisSameAs<0, 1>]>;
53 def SDT_ARMPICAdd : SDTypeProfile<1, 2, [SDTCisSameAs<0, 1>,
54 SDTCisPtrTy<1>, SDTCisVT<2, i32>]>;
56 def SDT_ARMThreadPointer : SDTypeProfile<1, 0, [SDTCisPtrTy<0>]>;
57 def SDT_ARMEH_SJLJ_Setjmp : SDTypeProfile<1, 2, [SDTCisInt<0>, SDTCisPtrTy<1>,
59 def SDT_ARMEH_SJLJ_Longjmp: SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisInt<1>]>;
61 def SDT_ARMEH_SJLJ_DispatchSetup: SDTypeProfile<0, 1, [SDTCisInt<0>]>;
63 def SDT_ARMMEMBARRIER : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
65 def SDT_ARMPREFETCH : SDTypeProfile<0, 3, [SDTCisPtrTy<0>, SDTCisSameAs<1, 2>,
68 def SDT_ARMTCRET : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
70 def SDT_ARMBFI : SDTypeProfile<1, 3, [SDTCisVT<0, i32>, SDTCisVT<1, i32>,
71 SDTCisVT<2, i32>, SDTCisVT<3, i32>]>;
74 def ARMWrapper : SDNode<"ARMISD::Wrapper", SDTIntUnaryOp>;
75 def ARMWrapperDYN : SDNode<"ARMISD::WrapperDYN", SDTIntUnaryOp>;
76 def ARMWrapperPIC : SDNode<"ARMISD::WrapperPIC", SDTIntUnaryOp>;
77 def ARMWrapperJT : SDNode<"ARMISD::WrapperJT", SDTIntBinOp>;
79 def ARMcallseq_start : SDNode<"ISD::CALLSEQ_START", SDT_ARMCallSeqStart,
80 [SDNPHasChain, SDNPOutGlue]>;
81 def ARMcallseq_end : SDNode<"ISD::CALLSEQ_END", SDT_ARMCallSeqEnd,
82 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
84 def ARMcall : SDNode<"ARMISD::CALL", SDT_ARMcall,
85 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
87 def ARMcall_pred : SDNode<"ARMISD::CALL_PRED", SDT_ARMcall,
88 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
90 def ARMcall_nolink : SDNode<"ARMISD::CALL_NOLINK", SDT_ARMcall,
91 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
94 def ARMretflag : SDNode<"ARMISD::RET_FLAG", SDTNone,
95 [SDNPHasChain, SDNPOptInGlue]>;
97 def ARMcmov : SDNode<"ARMISD::CMOV", SDT_ARMCMov,
100 def ARMbrcond : SDNode<"ARMISD::BRCOND", SDT_ARMBrcond,
101 [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
103 def ARMbrjt : SDNode<"ARMISD::BR_JT", SDT_ARMBrJT,
105 def ARMbr2jt : SDNode<"ARMISD::BR2_JT", SDT_ARMBr2JT,
108 def ARMBcci64 : SDNode<"ARMISD::BCC_i64", SDT_ARMBCC_i64,
111 def ARMcmp : SDNode<"ARMISD::CMP", SDT_ARMCmp,
114 def ARMcmpZ : SDNode<"ARMISD::CMPZ", SDT_ARMCmp,
115 [SDNPOutGlue, SDNPCommutative]>;
117 def ARMpic_add : SDNode<"ARMISD::PIC_ADD", SDT_ARMPICAdd>;
119 def ARMsrl_flag : SDNode<"ARMISD::SRL_FLAG", SDTIntUnaryOp, [SDNPOutGlue]>;
120 def ARMsra_flag : SDNode<"ARMISD::SRA_FLAG", SDTIntUnaryOp, [SDNPOutGlue]>;
121 def ARMrrx : SDNode<"ARMISD::RRX" , SDTIntUnaryOp, [SDNPInGlue ]>;
123 def ARMthread_pointer: SDNode<"ARMISD::THREAD_POINTER", SDT_ARMThreadPointer>;
124 def ARMeh_sjlj_setjmp: SDNode<"ARMISD::EH_SJLJ_SETJMP",
125 SDT_ARMEH_SJLJ_Setjmp, [SDNPHasChain]>;
126 def ARMeh_sjlj_longjmp: SDNode<"ARMISD::EH_SJLJ_LONGJMP",
127 SDT_ARMEH_SJLJ_Longjmp, [SDNPHasChain]>;
128 def ARMeh_sjlj_dispatchsetup: SDNode<"ARMISD::EH_SJLJ_DISPATCHSETUP",
129 SDT_ARMEH_SJLJ_DispatchSetup, [SDNPHasChain]>;
132 def ARMMemBarrier : SDNode<"ARMISD::MEMBARRIER", SDT_ARMMEMBARRIER,
134 def ARMMemBarrierMCR : SDNode<"ARMISD::MEMBARRIER_MCR", SDT_ARMMEMBARRIER,
136 def ARMPreload : SDNode<"ARMISD::PRELOAD", SDT_ARMPREFETCH,
137 [SDNPHasChain, SDNPMayLoad, SDNPMayStore]>;
139 def ARMrbit : SDNode<"ARMISD::RBIT", SDTIntUnaryOp>;
141 def ARMtcret : SDNode<"ARMISD::TC_RETURN", SDT_ARMTCRET,
142 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
145 def ARMbfi : SDNode<"ARMISD::BFI", SDT_ARMBFI>;
147 //===----------------------------------------------------------------------===//
148 // ARM Instruction Predicate Definitions.
150 def HasV4T : Predicate<"Subtarget->hasV4TOps()">,
151 AssemblerPredicate<"HasV4TOps">;
152 def NoV4T : Predicate<"!Subtarget->hasV4TOps()">;
153 def HasV5T : Predicate<"Subtarget->hasV5TOps()">;
154 def HasV5TE : Predicate<"Subtarget->hasV5TEOps()">,
155 AssemblerPredicate<"HasV5TEOps">;
156 def HasV6 : Predicate<"Subtarget->hasV6Ops()">,
157 AssemblerPredicate<"HasV6Ops">;
158 def NoV6 : Predicate<"!Subtarget->hasV6Ops()">;
159 def HasV6T2 : Predicate<"Subtarget->hasV6T2Ops()">,
160 AssemblerPredicate<"HasV6T2Ops">;
161 def NoV6T2 : Predicate<"!Subtarget->hasV6T2Ops()">;
162 def HasV7 : Predicate<"Subtarget->hasV7Ops()">,
163 AssemblerPredicate<"HasV7Ops">;
164 def NoVFP : Predicate<"!Subtarget->hasVFP2()">;
165 def HasVFP2 : Predicate<"Subtarget->hasVFP2()">,
166 AssemblerPredicate<"FeatureVFP2">;
167 def HasVFP3 : Predicate<"Subtarget->hasVFP3()">,
168 AssemblerPredicate<"FeatureVFP3">;
169 def HasNEON : Predicate<"Subtarget->hasNEON()">,
170 AssemblerPredicate<"FeatureNEON">;
171 def HasFP16 : Predicate<"Subtarget->hasFP16()">,
172 AssemblerPredicate<"FeatureFP16">;
173 def HasDivide : Predicate<"Subtarget->hasDivide()">,
174 AssemblerPredicate<"FeatureHWDiv">;
175 def HasT2ExtractPack : Predicate<"Subtarget->hasT2ExtractPack()">,
176 AssemblerPredicate<"FeatureT2XtPk">;
177 def HasThumb2DSP : Predicate<"Subtarget->hasThumb2DSP()">,
178 AssemblerPredicate<"FeatureDSPThumb2">;
179 def HasDB : Predicate<"Subtarget->hasDataBarrier()">,
180 AssemblerPredicate<"FeatureDB">;
181 def HasMP : Predicate<"Subtarget->hasMPExtension()">,
182 AssemblerPredicate<"FeatureMP">;
183 def UseNEONForFP : Predicate<"Subtarget->useNEONForSinglePrecisionFP()">;
184 def DontUseNEONForFP : Predicate<"!Subtarget->useNEONForSinglePrecisionFP()">;
185 def IsThumb : Predicate<"Subtarget->isThumb()">,
186 AssemblerPredicate<"ModeThumb">;
187 def IsThumb1Only : Predicate<"Subtarget->isThumb1Only()">;
188 def IsThumb2 : Predicate<"Subtarget->isThumb2()">,
189 AssemblerPredicate<"ModeThumb,FeatureThumb2">;
190 def IsARM : Predicate<"!Subtarget->isThumb()">,
191 AssemblerPredicate<"!ModeThumb">;
192 def IsDarwin : Predicate<"Subtarget->isTargetDarwin()">;
193 def IsNotDarwin : Predicate<"!Subtarget->isTargetDarwin()">;
195 // FIXME: Eventually this will be just "hasV6T2Ops".
196 def UseMovt : Predicate<"Subtarget->useMovt()">;
197 def DontUseMovt : Predicate<"!Subtarget->useMovt()">;
198 def UseFPVMLx : Predicate<"Subtarget->useFPVMLx()">;
200 //===----------------------------------------------------------------------===//
201 // ARM Flag Definitions.
203 class RegConstraint<string C> {
204 string Constraints = C;
207 //===----------------------------------------------------------------------===//
208 // ARM specific transformation functions and pattern fragments.
211 // so_imm_neg_XFORM - Return a so_imm value packed into the format described for
212 // so_imm_neg def below.
213 def so_imm_neg_XFORM : SDNodeXForm<imm, [{
214 return CurDAG->getTargetConstant(-(int)N->getZExtValue(), MVT::i32);
217 // so_imm_not_XFORM - Return a so_imm value packed into the format described for
218 // so_imm_not def below.
219 def so_imm_not_XFORM : SDNodeXForm<imm, [{
220 return CurDAG->getTargetConstant(~(int)N->getZExtValue(), MVT::i32);
223 /// imm1_15 predicate - True if the 32-bit immediate is in the range [1,15].
224 def imm1_15 : ImmLeaf<i32, [{
225 return (int32_t)Imm >= 1 && (int32_t)Imm < 16;
228 /// imm16_31 predicate - True if the 32-bit immediate is in the range [16,31].
229 def imm16_31 : ImmLeaf<i32, [{
230 return (int32_t)Imm >= 16 && (int32_t)Imm < 32;
235 return ARM_AM::getSOImmVal(-(uint32_t)N->getZExtValue()) != -1;
236 }], so_imm_neg_XFORM>;
240 return ARM_AM::getSOImmVal(~(uint32_t)N->getZExtValue()) != -1;
241 }], so_imm_not_XFORM>;
243 // sext_16_node predicate - True if the SDNode is sign-extended 16 or more bits.
244 def sext_16_node : PatLeaf<(i32 GPR:$a), [{
245 return CurDAG->ComputeNumSignBits(SDValue(N,0)) >= 17;
248 /// Split a 32-bit immediate into two 16 bit parts.
249 def hi16 : SDNodeXForm<imm, [{
250 return CurDAG->getTargetConstant((uint32_t)N->getZExtValue() >> 16, MVT::i32);
253 def lo16AllZero : PatLeaf<(i32 imm), [{
254 // Returns true if all low 16-bits are 0.
255 return (((uint32_t)N->getZExtValue()) & 0xFFFFUL) == 0;
258 /// imm0_65535 - An immediate is in the range [0.65535].
259 def Imm0_65535AsmOperand: AsmOperandClass { let Name = "Imm0_65535"; }
260 def imm0_65535 : Operand<i32>, ImmLeaf<i32, [{
261 return Imm >= 0 && Imm < 65536;
263 let ParserMatchClass = Imm0_65535AsmOperand;
266 class BinOpFrag<dag res> : PatFrag<(ops node:$LHS, node:$RHS), res>;
267 class UnOpFrag <dag res> : PatFrag<(ops node:$Src), res>;
269 /// adde and sube predicates - True based on whether the carry flag output
270 /// will be needed or not.
271 def adde_dead_carry :
272 PatFrag<(ops node:$LHS, node:$RHS), (adde node:$LHS, node:$RHS),
273 [{return !N->hasAnyUseOfValue(1);}]>;
274 def sube_dead_carry :
275 PatFrag<(ops node:$LHS, node:$RHS), (sube node:$LHS, node:$RHS),
276 [{return !N->hasAnyUseOfValue(1);}]>;
277 def adde_live_carry :
278 PatFrag<(ops node:$LHS, node:$RHS), (adde node:$LHS, node:$RHS),
279 [{return N->hasAnyUseOfValue(1);}]>;
280 def sube_live_carry :
281 PatFrag<(ops node:$LHS, node:$RHS), (sube node:$LHS, node:$RHS),
282 [{return N->hasAnyUseOfValue(1);}]>;
284 // An 'and' node with a single use.
285 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
286 return N->hasOneUse();
289 // An 'xor' node with a single use.
290 def xor_su : PatFrag<(ops node:$lhs, node:$rhs), (xor node:$lhs, node:$rhs), [{
291 return N->hasOneUse();
294 // An 'fmul' node with a single use.
295 def fmul_su : PatFrag<(ops node:$lhs, node:$rhs), (fmul node:$lhs, node:$rhs),[{
296 return N->hasOneUse();
299 // An 'fadd' node which checks for single non-hazardous use.
300 def fadd_mlx : PatFrag<(ops node:$lhs, node:$rhs),(fadd node:$lhs, node:$rhs),[{
301 return hasNoVMLxHazardUse(N);
304 // An 'fsub' node which checks for single non-hazardous use.
305 def fsub_mlx : PatFrag<(ops node:$lhs, node:$rhs),(fsub node:$lhs, node:$rhs),[{
306 return hasNoVMLxHazardUse(N);
309 //===----------------------------------------------------------------------===//
310 // Operand Definitions.
314 // FIXME: rename brtarget to t2_brtarget
315 def brtarget : Operand<OtherVT> {
316 let EncoderMethod = "getBranchTargetOpValue";
317 let OperandType = "OPERAND_PCREL";
320 // FIXME: get rid of this one?
321 def uncondbrtarget : Operand<OtherVT> {
322 let EncoderMethod = "getUnconditionalBranchTargetOpValue";
323 let OperandType = "OPERAND_PCREL";
326 // Branch target for ARM. Handles conditional/unconditional
327 def br_target : Operand<OtherVT> {
328 let EncoderMethod = "getARMBranchTargetOpValue";
329 let OperandType = "OPERAND_PCREL";
333 // FIXME: rename bltarget to t2_bl_target?
334 def bltarget : Operand<i32> {
335 // Encoded the same as branch targets.
336 let EncoderMethod = "getBranchTargetOpValue";
337 let OperandType = "OPERAND_PCREL";
340 // Call target for ARM. Handles conditional/unconditional
341 // FIXME: rename bl_target to t2_bltarget?
342 def bl_target : Operand<i32> {
343 // Encoded the same as branch targets.
344 let EncoderMethod = "getARMBranchTargetOpValue";
345 let OperandType = "OPERAND_PCREL";
349 // A list of registers separated by comma. Used by load/store multiple.
350 def RegListAsmOperand : AsmOperandClass { let Name = "RegList"; }
351 def reglist : Operand<i32> {
352 let EncoderMethod = "getRegisterListOpValue";
353 let ParserMatchClass = RegListAsmOperand;
354 let PrintMethod = "printRegisterList";
357 def DPRRegListAsmOperand : AsmOperandClass { let Name = "DPRRegList"; }
358 def dpr_reglist : Operand<i32> {
359 let EncoderMethod = "getRegisterListOpValue";
360 let ParserMatchClass = DPRRegListAsmOperand;
361 let PrintMethod = "printRegisterList";
364 def SPRRegListAsmOperand : AsmOperandClass { let Name = "SPRRegList"; }
365 def spr_reglist : Operand<i32> {
366 let EncoderMethod = "getRegisterListOpValue";
367 let ParserMatchClass = SPRRegListAsmOperand;
368 let PrintMethod = "printRegisterList";
371 // An operand for the CONSTPOOL_ENTRY pseudo-instruction.
372 def cpinst_operand : Operand<i32> {
373 let PrintMethod = "printCPInstOperand";
377 def pclabel : Operand<i32> {
378 let PrintMethod = "printPCLabel";
381 // ADR instruction labels.
382 def adrlabel : Operand<i32> {
383 let EncoderMethod = "getAdrLabelOpValue";
386 def neon_vcvt_imm32 : Operand<i32> {
387 let EncoderMethod = "getNEONVcvtImm32OpValue";
390 // rot_imm: An integer that encodes a rotate amount. Must be 8, 16, or 24.
391 def rot_imm_XFORM: SDNodeXForm<imm, [{
392 switch (N->getZExtValue()){
394 case 0: return CurDAG->getTargetConstant(0, MVT::i32);
395 case 8: return CurDAG->getTargetConstant(1, MVT::i32);
396 case 16: return CurDAG->getTargetConstant(2, MVT::i32);
397 case 24: return CurDAG->getTargetConstant(3, MVT::i32);
400 def RotImmAsmOperand : AsmOperandClass {
402 let ParserMethod = "parseRotImm";
404 def rot_imm : Operand<i32>, PatLeaf<(i32 imm), [{
405 int32_t v = N->getZExtValue();
406 return v == 8 || v == 16 || v == 24; }],
408 let PrintMethod = "printRotImmOperand";
409 let ParserMatchClass = RotImmAsmOperand;
412 // shift_imm: An integer that encodes a shift amount and the type of shift
413 // (asr or lsl). The 6-bit immediate encodes as:
416 // {4-0} imm5 shift amount.
417 // asr #32 encoded as imm5 == 0.
418 def ShifterImmAsmOperand : AsmOperandClass {
419 let Name = "ShifterImm";
420 let ParserMethod = "parseShifterImm";
422 def shift_imm : Operand<i32> {
423 let PrintMethod = "printShiftImmOperand";
424 let ParserMatchClass = ShifterImmAsmOperand;
427 // shifter_operand operands: so_reg_reg, so_reg_imm, and so_imm.
428 def ShiftedRegAsmOperand : AsmOperandClass { let Name = "RegShiftedReg"; }
429 def so_reg_reg : Operand<i32>, // reg reg imm
430 ComplexPattern<i32, 3, "SelectRegShifterOperand",
431 [shl, srl, sra, rotr]> {
432 let EncoderMethod = "getSORegRegOpValue";
433 let PrintMethod = "printSORegRegOperand";
434 let ParserMatchClass = ShiftedRegAsmOperand;
435 let MIOperandInfo = (ops GPR, GPR, i32imm);
438 def ShiftedImmAsmOperand : AsmOperandClass { let Name = "RegShiftedImm"; }
439 def so_reg_imm : Operand<i32>, // reg imm
440 ComplexPattern<i32, 2, "SelectImmShifterOperand",
441 [shl, srl, sra, rotr]> {
442 let EncoderMethod = "getSORegImmOpValue";
443 let PrintMethod = "printSORegImmOperand";
444 let ParserMatchClass = ShiftedImmAsmOperand;
445 let MIOperandInfo = (ops GPR, i32imm);
448 // FIXME: Does this need to be distinct from so_reg?
449 def shift_so_reg_reg : Operand<i32>, // reg reg imm
450 ComplexPattern<i32, 3, "SelectShiftRegShifterOperand",
451 [shl,srl,sra,rotr]> {
452 let EncoderMethod = "getSORegRegOpValue";
453 let PrintMethod = "printSORegRegOperand";
454 let MIOperandInfo = (ops GPR, GPR, i32imm);
457 // FIXME: Does this need to be distinct from so_reg?
458 def shift_so_reg_imm : Operand<i32>, // reg reg imm
459 ComplexPattern<i32, 2, "SelectShiftImmShifterOperand",
460 [shl,srl,sra,rotr]> {
461 let EncoderMethod = "getSORegImmOpValue";
462 let PrintMethod = "printSORegImmOperand";
463 let MIOperandInfo = (ops GPR, i32imm);
467 // so_imm - Match a 32-bit shifter_operand immediate operand, which is an
468 // 8-bit immediate rotated by an arbitrary number of bits.
469 def SOImmAsmOperand: AsmOperandClass { let Name = "ARMSOImm"; }
470 def so_imm : Operand<i32>, ImmLeaf<i32, [{
471 return ARM_AM::getSOImmVal(Imm) != -1;
473 let EncoderMethod = "getSOImmOpValue";
474 let ParserMatchClass = SOImmAsmOperand;
477 // Break so_imm's up into two pieces. This handles immediates with up to 16
478 // bits set in them. This uses so_imm2part to match and so_imm2part_[12] to
479 // get the first/second pieces.
480 def so_imm2part : PatLeaf<(imm), [{
481 return ARM_AM::isSOImmTwoPartVal((unsigned)N->getZExtValue());
484 /// arm_i32imm - True for +V6T2, or true only if so_imm2part is true.
486 def arm_i32imm : PatLeaf<(imm), [{
487 if (Subtarget->hasV6T2Ops())
489 return ARM_AM::isSOImmTwoPartVal((unsigned)N->getZExtValue());
492 /// imm0_7 predicate - Immediate in the range [0,7].
493 def Imm0_7AsmOperand: AsmOperandClass { let Name = "Imm0_7"; }
494 def imm0_7 : Operand<i32>, ImmLeaf<i32, [{
495 return Imm >= 0 && Imm < 8;
497 let ParserMatchClass = Imm0_7AsmOperand;
500 /// imm0_15 predicate - Immediate in the range [0,15].
501 def Imm0_15AsmOperand: AsmOperandClass { let Name = "Imm0_15"; }
502 def imm0_15 : Operand<i32>, ImmLeaf<i32, [{
503 return Imm >= 0 && Imm < 16;
505 let ParserMatchClass = Imm0_15AsmOperand;
508 /// imm0_31 predicate - True if the 32-bit immediate is in the range [0,31].
509 def Imm0_31AsmOperand: AsmOperandClass { let Name = "Imm0_31"; }
510 def imm0_31 : Operand<i32>, ImmLeaf<i32, [{
511 return Imm >= 0 && Imm < 32;
513 let ParserMatchClass = Imm0_31AsmOperand;
516 /// imm0_255 predicate - Immediate in the range [0,255].
517 def Imm0_255AsmOperand : AsmOperandClass { let Name = "Imm0_255"; }
518 def imm0_255 : Operand<i32>, ImmLeaf<i32, [{ return Imm >= 0 && Imm < 256; }]> {
519 let ParserMatchClass = Imm0_255AsmOperand;
522 // imm0_65535_expr - For movt/movw - 16-bit immediate that can also reference
523 // a relocatable expression.
525 // FIXME: This really needs a Thumb version separate from the ARM version.
526 // While the range is the same, and can thus use the same match class,
527 // the encoding is different so it should have a different encoder method.
528 def Imm0_65535ExprAsmOperand: AsmOperandClass { let Name = "Imm0_65535Expr"; }
529 def imm0_65535_expr : Operand<i32> {
530 let EncoderMethod = "getHiLo16ImmOpValue";
531 let ParserMatchClass = Imm0_65535ExprAsmOperand;
534 /// imm24b - True if the 32-bit immediate is encodable in 24 bits.
535 def Imm24bitAsmOperand: AsmOperandClass { let Name = "Imm24bit"; }
536 def imm24b : Operand<i32>, ImmLeaf<i32, [{
537 return Imm >= 0 && Imm <= 0xffffff;
539 let ParserMatchClass = Imm24bitAsmOperand;
543 /// bf_inv_mask_imm predicate - An AND mask to clear an arbitrary width bitfield
545 def BitfieldAsmOperand : AsmOperandClass {
546 let Name = "Bitfield";
547 let ParserMethod = "parseBitfield";
549 def bf_inv_mask_imm : Operand<i32>,
551 return ARM::isBitFieldInvertedMask(N->getZExtValue());
553 let EncoderMethod = "getBitfieldInvertedMaskOpValue";
554 let PrintMethod = "printBitfieldInvMaskImmOperand";
555 let ParserMatchClass = BitfieldAsmOperand;
558 /// lsb_pos_imm - position of the lsb bit, used by BFI4p and t2BFI4p
559 def lsb_pos_imm : Operand<i32>, ImmLeaf<i32, [{
560 return isInt<5>(Imm);
563 /// width_imm - number of bits to be copied, used by BFI4p and t2BFI4p
564 def width_imm : Operand<i32>, ImmLeaf<i32, [{
565 return Imm > 0 && Imm <= 32;
567 let EncoderMethod = "getMsbOpValue";
570 def imm1_32_XFORM: SDNodeXForm<imm, [{
571 return CurDAG->getTargetConstant((int)N->getZExtValue() - 1, MVT::i32);
573 def Imm1_32AsmOperand: AsmOperandClass { let Name = "Imm1_32"; }
574 def imm1_32 : Operand<i32>, PatLeaf<(imm), [{ return Imm > 0 && Imm <= 32; }],
576 let PrintMethod = "printImmPlusOneOperand";
577 let ParserMatchClass = Imm1_32AsmOperand;
580 def imm1_16_XFORM: SDNodeXForm<imm, [{
581 return CurDAG->getTargetConstant((int)N->getZExtValue() - 1, MVT::i32);
583 def Imm1_16AsmOperand: AsmOperandClass { let Name = "Imm1_16"; }
584 def imm1_16 : Operand<i32>, PatLeaf<(imm), [{ return Imm > 0 && Imm <= 16; }],
586 let PrintMethod = "printImmPlusOneOperand";
587 let ParserMatchClass = Imm1_16AsmOperand;
590 // Define ARM specific addressing modes.
591 // addrmode_imm12 := reg +/- imm12
593 def MemImm12OffsetAsmOperand : AsmOperandClass { let Name = "MemImm12Offset"; }
594 def addrmode_imm12 : Operand<i32>,
595 ComplexPattern<i32, 2, "SelectAddrModeImm12", []> {
596 // 12-bit immediate operand. Note that instructions using this encode
597 // #0 and #-0 differently. We flag #-0 as the magic value INT32_MIN. All other
598 // immediate values are as normal.
600 let EncoderMethod = "getAddrModeImm12OpValue";
601 let PrintMethod = "printAddrModeImm12Operand";
602 let ParserMatchClass = MemImm12OffsetAsmOperand;
603 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
605 // ldst_so_reg := reg +/- reg shop imm
607 def MemRegOffsetAsmOperand : AsmOperandClass { let Name = "MemRegOffset"; }
608 def ldst_so_reg : Operand<i32>,
609 ComplexPattern<i32, 3, "SelectLdStSOReg", []> {
610 let EncoderMethod = "getLdStSORegOpValue";
611 // FIXME: Simplify the printer
612 let PrintMethod = "printAddrMode2Operand";
613 let ParserMatchClass = MemRegOffsetAsmOperand;
614 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$shift);
617 // postidx_imm8 := +/- [0,255]
620 // {8} 1 is imm8 is non-negative. 0 otherwise.
621 // {7-0} [0,255] imm8 value.
622 def PostIdxImm8AsmOperand : AsmOperandClass { let Name = "PostIdxImm8"; }
623 def postidx_imm8 : Operand<i32> {
624 let PrintMethod = "printPostIdxImm8Operand";
625 let ParserMatchClass = PostIdxImm8AsmOperand;
626 let MIOperandInfo = (ops i32imm);
629 // postidx_reg := +/- reg
631 def PostIdxRegAsmOperand : AsmOperandClass {
632 let Name = "PostIdxReg";
633 let ParserMethod = "parsePostIdxReg";
635 def postidx_reg : Operand<i32> {
636 let EncoderMethod = "getPostIdxRegOpValue";
637 let PrintMethod = "printAddrMode3OffsetOperand";
638 let ParserMatchClass = PostIdxRegAsmOperand;
639 let MIOperandInfo = (ops GPR, i32imm);
643 // addrmode2 := reg +/- imm12
644 // := reg +/- reg shop imm
646 // FIXME: addrmode2 should be refactored the rest of the way to always
647 // use explicit imm vs. reg versions above (addrmode_imm12 and ldst_so_reg).
648 def AddrMode2AsmOperand : AsmOperandClass { let Name = "AddrMode2"; }
649 def addrmode2 : Operand<i32>,
650 ComplexPattern<i32, 3, "SelectAddrMode2", []> {
651 let EncoderMethod = "getAddrMode2OpValue";
652 let PrintMethod = "printAddrMode2Operand";
653 let ParserMatchClass = AddrMode2AsmOperand;
654 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
657 def am2offset_reg : Operand<i32>,
658 ComplexPattern<i32, 2, "SelectAddrMode2OffsetReg",
659 [], [SDNPWantRoot]> {
660 let EncoderMethod = "getAddrMode2OffsetOpValue";
661 let PrintMethod = "printAddrMode2OffsetOperand";
662 let MIOperandInfo = (ops GPR, i32imm);
665 def am2offset_imm : Operand<i32>,
666 ComplexPattern<i32, 2, "SelectAddrMode2OffsetImm",
667 [], [SDNPWantRoot]> {
668 let EncoderMethod = "getAddrMode2OffsetOpValue";
669 let PrintMethod = "printAddrMode2OffsetOperand";
670 let MIOperandInfo = (ops GPR, i32imm);
674 // addrmode3 := reg +/- reg
675 // addrmode3 := reg +/- imm8
677 //def AddrMode3AsmOperand : AsmOperandClass { let Name = "AddrMode3"; }
678 def addrmode3 : Operand<i32>,
679 ComplexPattern<i32, 3, "SelectAddrMode3", []> {
680 let EncoderMethod = "getAddrMode3OpValue";
681 let PrintMethod = "printAddrMode3Operand";
682 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
685 def am3offset : Operand<i32>,
686 ComplexPattern<i32, 2, "SelectAddrMode3Offset",
687 [], [SDNPWantRoot]> {
688 let EncoderMethod = "getAddrMode3OffsetOpValue";
689 let PrintMethod = "printAddrMode3OffsetOperand";
690 let MIOperandInfo = (ops GPR, i32imm);
693 // ldstm_mode := {ia, ib, da, db}
695 def ldstm_mode : OptionalDefOperand<OtherVT, (ops i32), (ops (i32 1))> {
696 let EncoderMethod = "getLdStmModeOpValue";
697 let PrintMethod = "printLdStmModeOperand";
700 // addrmode5 := reg +/- imm8*4
702 def AddrMode5AsmOperand : AsmOperandClass { let Name = "AddrMode5"; }
703 def addrmode5 : Operand<i32>,
704 ComplexPattern<i32, 2, "SelectAddrMode5", []> {
705 let PrintMethod = "printAddrMode5Operand";
706 let EncoderMethod = "getAddrMode5OpValue";
707 let ParserMatchClass = AddrMode5AsmOperand;
708 let MIOperandInfo = (ops GPR:$base, i32imm);
711 // addrmode6 := reg with optional alignment
713 def addrmode6 : Operand<i32>,
714 ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
715 let PrintMethod = "printAddrMode6Operand";
716 let MIOperandInfo = (ops GPR:$addr, i32imm);
717 let EncoderMethod = "getAddrMode6AddressOpValue";
720 def am6offset : Operand<i32>,
721 ComplexPattern<i32, 1, "SelectAddrMode6Offset",
722 [], [SDNPWantRoot]> {
723 let PrintMethod = "printAddrMode6OffsetOperand";
724 let MIOperandInfo = (ops GPR);
725 let EncoderMethod = "getAddrMode6OffsetOpValue";
728 // Special version of addrmode6 to handle alignment encoding for VST1/VLD1
729 // (single element from one lane) for size 32.
730 def addrmode6oneL32 : Operand<i32>,
731 ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
732 let PrintMethod = "printAddrMode6Operand";
733 let MIOperandInfo = (ops GPR:$addr, i32imm);
734 let EncoderMethod = "getAddrMode6OneLane32AddressOpValue";
737 // Special version of addrmode6 to handle alignment encoding for VLD-dup
738 // instructions, specifically VLD4-dup.
739 def addrmode6dup : Operand<i32>,
740 ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
741 let PrintMethod = "printAddrMode6Operand";
742 let MIOperandInfo = (ops GPR:$addr, i32imm);
743 let EncoderMethod = "getAddrMode6DupAddressOpValue";
746 // addrmodepc := pc + reg
748 def addrmodepc : Operand<i32>,
749 ComplexPattern<i32, 2, "SelectAddrModePC", []> {
750 let PrintMethod = "printAddrModePCOperand";
751 let MIOperandInfo = (ops GPR, i32imm);
754 // addr_offset_none := reg
756 def MemNoOffsetAsmOperand : AsmOperandClass { let Name = "MemNoOffset"; }
757 def addr_offset_none : Operand<i32> {
758 let PrintMethod = "printAddrMode7Operand";
759 let ParserMatchClass = MemNoOffsetAsmOperand;
760 let MIOperandInfo = (ops GPR:$base);
763 def nohash_imm : Operand<i32> {
764 let PrintMethod = "printNoHashImmediate";
767 def CoprocNumAsmOperand : AsmOperandClass {
768 let Name = "CoprocNum";
769 let ParserMethod = "parseCoprocNumOperand";
771 def p_imm : Operand<i32> {
772 let PrintMethod = "printPImmediate";
773 let ParserMatchClass = CoprocNumAsmOperand;
776 def CoprocRegAsmOperand : AsmOperandClass {
777 let Name = "CoprocReg";
778 let ParserMethod = "parseCoprocRegOperand";
780 def c_imm : Operand<i32> {
781 let PrintMethod = "printCImmediate";
782 let ParserMatchClass = CoprocRegAsmOperand;
785 //===----------------------------------------------------------------------===//
787 include "ARMInstrFormats.td"
789 //===----------------------------------------------------------------------===//
790 // Multiclass helpers...
793 /// AsI1_bin_irs - Defines a set of (op r, {so_imm|r|so_reg}) patterns for a
794 /// binop that produces a value.
795 multiclass AsI1_bin_irs<bits<4> opcod, string opc,
796 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
797 PatFrag opnode, string baseOpc, bit Commutable = 0> {
798 // The register-immediate version is re-materializable. This is useful
799 // in particular for taking the address of a local.
800 let isReMaterializable = 1 in {
801 def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
802 iii, opc, "\t$Rd, $Rn, $imm",
803 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]> {
808 let Inst{19-16} = Rn;
809 let Inst{15-12} = Rd;
810 let Inst{11-0} = imm;
813 def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
814 iir, opc, "\t$Rd, $Rn, $Rm",
815 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]> {
820 let isCommutable = Commutable;
821 let Inst{19-16} = Rn;
822 let Inst{15-12} = Rd;
823 let Inst{11-4} = 0b00000000;
827 def rsi : AsI1<opcod, (outs GPR:$Rd),
828 (ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm,
829 iis, opc, "\t$Rd, $Rn, $shift",
830 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_imm:$shift))]> {
835 let Inst{19-16} = Rn;
836 let Inst{15-12} = Rd;
837 let Inst{11-5} = shift{11-5};
839 let Inst{3-0} = shift{3-0};
842 def rsr : AsI1<opcod, (outs GPR:$Rd),
843 (ins GPR:$Rn, so_reg_reg:$shift), DPSoRegRegFrm,
844 iis, opc, "\t$Rd, $Rn, $shift",
845 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_reg:$shift))]> {
850 let Inst{19-16} = Rn;
851 let Inst{15-12} = Rd;
852 let Inst{11-8} = shift{11-8};
854 let Inst{6-5} = shift{6-5};
856 let Inst{3-0} = shift{3-0};
859 // Assembly aliases for optional destination operand when it's the same
860 // as the source operand.
861 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
862 (!cast<Instruction>(!strconcat(baseOpc, "ri")) GPR:$Rdn, GPR:$Rdn,
863 so_imm:$imm, pred:$p,
866 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $Rm"),
867 (!cast<Instruction>(!strconcat(baseOpc, "rr")) GPR:$Rdn, GPR:$Rdn,
871 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
872 (!cast<Instruction>(!strconcat(baseOpc, "rsi")) GPR:$Rdn, GPR:$Rdn,
873 so_reg_imm:$shift, pred:$p,
876 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
877 (!cast<Instruction>(!strconcat(baseOpc, "rsr")) GPR:$Rdn, GPR:$Rdn,
878 so_reg_reg:$shift, pred:$p,
884 /// AI1_bin_s_irs - Similar to AsI1_bin_irs except it sets the 's' bit so the
885 /// instruction modifies the CPSR register.
886 let isCodeGenOnly = 1, Defs = [CPSR] in {
887 multiclass AI1_bin_s_irs<bits<4> opcod, string opc,
888 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
889 PatFrag opnode, bit Commutable = 0> {
890 def ri : AI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
891 iii, opc, "\t$Rd, $Rn, $imm",
892 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]> {
898 let Inst{19-16} = Rn;
899 let Inst{15-12} = Rd;
900 let Inst{11-0} = imm;
902 def rr : AI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
903 iir, opc, "\t$Rd, $Rn, $Rm",
904 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]> {
908 let isCommutable = Commutable;
911 let Inst{19-16} = Rn;
912 let Inst{15-12} = Rd;
913 let Inst{11-4} = 0b00000000;
916 def rsi : AI1<opcod, (outs GPR:$Rd),
917 (ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm,
918 iis, opc, "\t$Rd, $Rn, $shift",
919 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_imm:$shift))]> {
925 let Inst{19-16} = Rn;
926 let Inst{15-12} = Rd;
927 let Inst{11-5} = shift{11-5};
929 let Inst{3-0} = shift{3-0};
932 def rsr : AI1<opcod, (outs GPR:$Rd),
933 (ins GPR:$Rn, so_reg_reg:$shift), DPSoRegRegFrm,
934 iis, opc, "\t$Rd, $Rn, $shift",
935 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_reg:$shift))]> {
941 let Inst{19-16} = Rn;
942 let Inst{15-12} = Rd;
943 let Inst{11-8} = shift{11-8};
945 let Inst{6-5} = shift{6-5};
947 let Inst{3-0} = shift{3-0};
952 /// AI1_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
953 /// patterns. Similar to AsI1_bin_irs except the instruction does not produce
954 /// a explicit result, only implicitly set CPSR.
955 let isCompare = 1, Defs = [CPSR] in {
956 multiclass AI1_cmp_irs<bits<4> opcod, string opc,
957 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
958 PatFrag opnode, bit Commutable = 0> {
959 def ri : AI1<opcod, (outs), (ins GPR:$Rn, so_imm:$imm), DPFrm, iii,
961 [(opnode GPR:$Rn, so_imm:$imm)]> {
966 let Inst{19-16} = Rn;
967 let Inst{15-12} = 0b0000;
968 let Inst{11-0} = imm;
970 def rr : AI1<opcod, (outs), (ins GPR:$Rn, GPR:$Rm), DPFrm, iir,
972 [(opnode GPR:$Rn, GPR:$Rm)]> {
975 let isCommutable = Commutable;
978 let Inst{19-16} = Rn;
979 let Inst{15-12} = 0b0000;
980 let Inst{11-4} = 0b00000000;
983 def rsi : AI1<opcod, (outs),
984 (ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm, iis,
985 opc, "\t$Rn, $shift",
986 [(opnode GPR:$Rn, so_reg_imm:$shift)]> {
991 let Inst{19-16} = Rn;
992 let Inst{15-12} = 0b0000;
993 let Inst{11-5} = shift{11-5};
995 let Inst{3-0} = shift{3-0};
997 def rsr : AI1<opcod, (outs),
998 (ins GPR:$Rn, so_reg_reg:$shift), DPSoRegRegFrm, iis,
999 opc, "\t$Rn, $shift",
1000 [(opnode GPR:$Rn, so_reg_reg:$shift)]> {
1005 let Inst{19-16} = Rn;
1006 let Inst{15-12} = 0b0000;
1007 let Inst{11-8} = shift{11-8};
1009 let Inst{6-5} = shift{6-5};
1011 let Inst{3-0} = shift{3-0};
1017 /// AI_ext_rrot - A unary operation with two forms: one whose operand is a
1018 /// register and one whose operand is a register rotated by 8/16/24.
1019 /// FIXME: Remove the 'r' variant. Its rot_imm is zero.
1020 class AI_ext_rrot<bits<8> opcod, string opc, PatFrag opnode>
1021 : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rm, rot_imm:$rot),
1022 IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
1023 [(set GPR:$Rd, (opnode (rotr GPR:$Rm, rot_imm:$rot)))]>,
1024 Requires<[IsARM, HasV6]> {
1028 let Inst{19-16} = 0b1111;
1029 let Inst{15-12} = Rd;
1030 let Inst{11-10} = rot;
1034 class AI_ext_rrot_np<bits<8> opcod, string opc>
1035 : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rm, rot_imm:$rot),
1036 IIC_iEXTr, opc, "\t$Rd, $Rm$rot", []>,
1037 Requires<[IsARM, HasV6]> {
1039 let Inst{19-16} = 0b1111;
1040 let Inst{11-10} = rot;
1043 /// AI_exta_rrot - A binary operation with two forms: one whose operand is a
1044 /// register and one whose operand is a register rotated by 8/16/24.
1045 class AI_exta_rrot<bits<8> opcod, string opc, PatFrag opnode>
1046 : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, rot_imm:$rot),
1047 IIC_iEXTAr, opc, "\t$Rd, $Rn, $Rm$rot",
1048 [(set GPR:$Rd, (opnode GPR:$Rn, (rotr GPR:$Rm, rot_imm:$rot)))]>,
1049 Requires<[IsARM, HasV6]> {
1054 let Inst{19-16} = Rn;
1055 let Inst{15-12} = Rd;
1056 let Inst{11-10} = rot;
1057 let Inst{9-4} = 0b000111;
1061 class AI_exta_rrot_np<bits<8> opcod, string opc>
1062 : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, rot_imm:$rot),
1063 IIC_iEXTAr, opc, "\t$Rd, $Rn, $Rm$rot", []>,
1064 Requires<[IsARM, HasV6]> {
1067 let Inst{19-16} = Rn;
1068 let Inst{11-10} = rot;
1071 /// AI1_adde_sube_irs - Define instructions and patterns for adde and sube.
1072 multiclass AI1_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
1073 string baseOpc, bit Commutable = 0> {
1074 let Uses = [CPSR] in {
1075 def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
1076 DPFrm, IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
1077 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]>,
1083 let Inst{15-12} = Rd;
1084 let Inst{19-16} = Rn;
1085 let Inst{11-0} = imm;
1087 def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1088 DPFrm, IIC_iALUr, opc, "\t$Rd, $Rn, $Rm",
1089 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]>,
1094 let Inst{11-4} = 0b00000000;
1096 let isCommutable = Commutable;
1098 let Inst{15-12} = Rd;
1099 let Inst{19-16} = Rn;
1101 def rsi : AsI1<opcod, (outs GPR:$Rd),
1102 (ins GPR:$Rn, so_reg_imm:$shift),
1103 DPSoRegImmFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
1104 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_imm:$shift))]>,
1110 let Inst{19-16} = Rn;
1111 let Inst{15-12} = Rd;
1112 let Inst{11-5} = shift{11-5};
1114 let Inst{3-0} = shift{3-0};
1116 def rsr : AsI1<opcod, (outs GPR:$Rd),
1117 (ins GPR:$Rn, so_reg_reg:$shift),
1118 DPSoRegRegFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
1119 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_reg:$shift))]>,
1125 let Inst{19-16} = Rn;
1126 let Inst{15-12} = Rd;
1127 let Inst{11-8} = shift{11-8};
1129 let Inst{6-5} = shift{6-5};
1131 let Inst{3-0} = shift{3-0};
1134 // Assembly aliases for optional destination operand when it's the same
1135 // as the source operand.
1136 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
1137 (!cast<Instruction>(!strconcat(baseOpc, "ri")) GPR:$Rdn, GPR:$Rdn,
1138 so_imm:$imm, pred:$p,
1141 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $Rm"),
1142 (!cast<Instruction>(!strconcat(baseOpc, "rr")) GPR:$Rdn, GPR:$Rdn,
1146 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
1147 (!cast<Instruction>(!strconcat(baseOpc, "rsi")) GPR:$Rdn, GPR:$Rdn,
1148 so_reg_imm:$shift, pred:$p,
1151 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
1152 (!cast<Instruction>(!strconcat(baseOpc, "rsr")) GPR:$Rdn, GPR:$Rdn,
1153 so_reg_reg:$shift, pred:$p,
1158 // Carry setting variants
1159 // NOTE: CPSR def omitted because it will be handled by the custom inserter.
1160 let usesCustomInserter = 1 in {
1161 multiclass AI1_adde_sube_s_irs<PatFrag opnode, bit Commutable = 0> {
1162 def ri : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
1164 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]>;
1165 def rr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1167 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]> {
1168 let isCommutable = Commutable;
1170 def rsi : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_reg_imm:$shift),
1172 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_imm:$shift))]>;
1173 def rsr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_reg_reg:$shift),
1175 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_reg:$shift))]>;
1179 let canFoldAsLoad = 1, isReMaterializable = 1 in {
1180 multiclass AI_ldr1<bit isByte, string opc, InstrItinClass iii,
1181 InstrItinClass iir, PatFrag opnode> {
1182 // Note: We use the complex addrmode_imm12 rather than just an input
1183 // GPR and a constrained immediate so that we can use this to match
1184 // frame index references and avoid matching constant pool references.
1185 def i12: AI2ldst<0b010, 1, isByte, (outs GPR:$Rt), (ins addrmode_imm12:$addr),
1186 AddrMode_i12, LdFrm, iii, opc, "\t$Rt, $addr",
1187 [(set GPR:$Rt, (opnode addrmode_imm12:$addr))]> {
1190 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1191 let Inst{19-16} = addr{16-13}; // Rn
1192 let Inst{15-12} = Rt;
1193 let Inst{11-0} = addr{11-0}; // imm12
1195 def rs : AI2ldst<0b011, 1, isByte, (outs GPR:$Rt), (ins ldst_so_reg:$shift),
1196 AddrModeNone, LdFrm, iir, opc, "\t$Rt, $shift",
1197 [(set GPR:$Rt, (opnode ldst_so_reg:$shift))]> {
1200 let shift{4} = 0; // Inst{4} = 0
1201 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1202 let Inst{19-16} = shift{16-13}; // Rn
1203 let Inst{15-12} = Rt;
1204 let Inst{11-0} = shift{11-0};
1209 multiclass AI_str1<bit isByte, string opc, InstrItinClass iii,
1210 InstrItinClass iir, PatFrag opnode> {
1211 // Note: We use the complex addrmode_imm12 rather than just an input
1212 // GPR and a constrained immediate so that we can use this to match
1213 // frame index references and avoid matching constant pool references.
1214 def i12 : AI2ldst<0b010, 0, isByte, (outs),
1215 (ins GPR:$Rt, addrmode_imm12:$addr),
1216 AddrMode_i12, StFrm, iii, opc, "\t$Rt, $addr",
1217 [(opnode GPR:$Rt, addrmode_imm12:$addr)]> {
1220 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1221 let Inst{19-16} = addr{16-13}; // Rn
1222 let Inst{15-12} = Rt;
1223 let Inst{11-0} = addr{11-0}; // imm12
1225 def rs : AI2ldst<0b011, 0, isByte, (outs), (ins GPR:$Rt, ldst_so_reg:$shift),
1226 AddrModeNone, StFrm, iir, opc, "\t$Rt, $shift",
1227 [(opnode GPR:$Rt, ldst_so_reg:$shift)]> {
1230 let shift{4} = 0; // Inst{4} = 0
1231 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1232 let Inst{19-16} = shift{16-13}; // Rn
1233 let Inst{15-12} = Rt;
1234 let Inst{11-0} = shift{11-0};
1237 //===----------------------------------------------------------------------===//
1239 //===----------------------------------------------------------------------===//
1241 //===----------------------------------------------------------------------===//
1242 // Miscellaneous Instructions.
1245 /// CONSTPOOL_ENTRY - This instruction represents a floating constant pool in
1246 /// the function. The first operand is the ID# for this instruction, the second
1247 /// is the index into the MachineConstantPool that this is, the third is the
1248 /// size in bytes of this constant pool entry.
1249 let neverHasSideEffects = 1, isNotDuplicable = 1 in
1250 def CONSTPOOL_ENTRY :
1251 PseudoInst<(outs), (ins cpinst_operand:$instid, cpinst_operand:$cpidx,
1252 i32imm:$size), NoItinerary, []>;
1254 // FIXME: Marking these as hasSideEffects is necessary to prevent machine DCE
1255 // from removing one half of the matched pairs. That breaks PEI, which assumes
1256 // these will always be in pairs, and asserts if it finds otherwise. Better way?
1257 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
1258 def ADJCALLSTACKUP :
1259 PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2, pred:$p), NoItinerary,
1260 [(ARMcallseq_end timm:$amt1, timm:$amt2)]>;
1262 def ADJCALLSTACKDOWN :
1263 PseudoInst<(outs), (ins i32imm:$amt, pred:$p), NoItinerary,
1264 [(ARMcallseq_start timm:$amt)]>;
1267 def NOP : AI<(outs), (ins), MiscFrm, NoItinerary, "nop", "",
1268 [/* For disassembly only; pattern left blank */]>,
1269 Requires<[IsARM, HasV6T2]> {
1270 let Inst{27-16} = 0b001100100000;
1271 let Inst{15-8} = 0b11110000;
1272 let Inst{7-0} = 0b00000000;
1275 def YIELD : AI<(outs), (ins), MiscFrm, NoItinerary, "yield", "",
1276 [/* For disassembly only; pattern left blank */]>,
1277 Requires<[IsARM, HasV6T2]> {
1278 let Inst{27-16} = 0b001100100000;
1279 let Inst{15-8} = 0b11110000;
1280 let Inst{7-0} = 0b00000001;
1283 def WFE : AI<(outs), (ins), MiscFrm, NoItinerary, "wfe", "",
1284 [/* For disassembly only; pattern left blank */]>,
1285 Requires<[IsARM, HasV6T2]> {
1286 let Inst{27-16} = 0b001100100000;
1287 let Inst{15-8} = 0b11110000;
1288 let Inst{7-0} = 0b00000010;
1291 def WFI : AI<(outs), (ins), MiscFrm, NoItinerary, "wfi", "",
1292 [/* For disassembly only; pattern left blank */]>,
1293 Requires<[IsARM, HasV6T2]> {
1294 let Inst{27-16} = 0b001100100000;
1295 let Inst{15-8} = 0b11110000;
1296 let Inst{7-0} = 0b00000011;
1299 def SEL : AI<(outs GPR:$dst), (ins GPR:$a, GPR:$b), DPFrm, NoItinerary, "sel",
1300 "\t$dst, $a, $b", []>, Requires<[IsARM, HasV6]> {
1305 let Inst{15-12} = Rd;
1306 let Inst{19-16} = Rn;
1307 let Inst{27-20} = 0b01101000;
1308 let Inst{7-4} = 0b1011;
1309 let Inst{11-8} = 0b1111;
1312 def SEV : AI<(outs), (ins), MiscFrm, NoItinerary, "sev", "",
1313 []>, Requires<[IsARM, HasV6T2]> {
1314 let Inst{27-16} = 0b001100100000;
1315 let Inst{15-8} = 0b11110000;
1316 let Inst{7-0} = 0b00000100;
1319 // The i32imm operand $val can be used by a debugger to store more information
1320 // about the breakpoint.
1321 def BKPT : AI<(outs), (ins imm0_65535:$val), MiscFrm, NoItinerary,
1322 "bkpt", "\t$val", []>, Requires<[IsARM]> {
1324 let Inst{3-0} = val{3-0};
1325 let Inst{19-8} = val{15-4};
1326 let Inst{27-20} = 0b00010010;
1327 let Inst{7-4} = 0b0111;
1330 // Change Processor State
1331 // FIXME: We should use InstAlias to handle the optional operands.
1332 class CPS<dag iops, string asm_ops>
1333 : AXI<(outs), iops, MiscFrm, NoItinerary, !strconcat("cps", asm_ops),
1334 []>, Requires<[IsARM]> {
1340 let Inst{31-28} = 0b1111;
1341 let Inst{27-20} = 0b00010000;
1342 let Inst{19-18} = imod;
1343 let Inst{17} = M; // Enabled if mode is set;
1345 let Inst{8-6} = iflags;
1347 let Inst{4-0} = mode;
1351 def CPS3p : CPS<(ins imod_op:$imod, iflags_op:$iflags, imm0_31:$mode),
1352 "$imod\t$iflags, $mode">;
1353 let mode = 0, M = 0 in
1354 def CPS2p : CPS<(ins imod_op:$imod, iflags_op:$iflags), "$imod\t$iflags">;
1356 let imod = 0, iflags = 0, M = 1 in
1357 def CPS1p : CPS<(ins imm0_31:$mode), "\t$mode">;
1359 // Preload signals the memory system of possible future data/instruction access.
1360 // These are for disassembly only.
1361 multiclass APreLoad<bits<1> read, bits<1> data, string opc> {
1363 def i12 : AXI<(outs), (ins addrmode_imm12:$addr), MiscFrm, IIC_Preload,
1364 !strconcat(opc, "\t$addr"),
1365 [(ARMPreload addrmode_imm12:$addr, (i32 read), (i32 data))]> {
1368 let Inst{31-26} = 0b111101;
1369 let Inst{25} = 0; // 0 for immediate form
1370 let Inst{24} = data;
1371 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1372 let Inst{22} = read;
1373 let Inst{21-20} = 0b01;
1374 let Inst{19-16} = addr{16-13}; // Rn
1375 let Inst{15-12} = 0b1111;
1376 let Inst{11-0} = addr{11-0}; // imm12
1379 def rs : AXI<(outs), (ins ldst_so_reg:$shift), MiscFrm, IIC_Preload,
1380 !strconcat(opc, "\t$shift"),
1381 [(ARMPreload ldst_so_reg:$shift, (i32 read), (i32 data))]> {
1383 let Inst{31-26} = 0b111101;
1384 let Inst{25} = 1; // 1 for register form
1385 let Inst{24} = data;
1386 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1387 let Inst{22} = read;
1388 let Inst{21-20} = 0b01;
1389 let Inst{19-16} = shift{16-13}; // Rn
1390 let Inst{15-12} = 0b1111;
1391 let Inst{11-0} = shift{11-0};
1395 defm PLD : APreLoad<1, 1, "pld">, Requires<[IsARM]>;
1396 defm PLDW : APreLoad<0, 1, "pldw">, Requires<[IsARM,HasV7,HasMP]>;
1397 defm PLI : APreLoad<1, 0, "pli">, Requires<[IsARM,HasV7]>;
1399 def SETEND : AXI<(outs), (ins setend_op:$end), MiscFrm, NoItinerary,
1400 "setend\t$end", []>, Requires<[IsARM]> {
1402 let Inst{31-10} = 0b1111000100000001000000;
1407 def DBG : AI<(outs), (ins imm0_15:$opt), MiscFrm, NoItinerary, "dbg", "\t$opt",
1408 []>, Requires<[IsARM, HasV7]> {
1410 let Inst{27-4} = 0b001100100000111100001111;
1411 let Inst{3-0} = opt;
1414 // A5.4 Permanently UNDEFINED instructions.
1415 let isBarrier = 1, isTerminator = 1 in
1416 def TRAP : AXI<(outs), (ins), MiscFrm, NoItinerary,
1419 let Inst = 0xe7ffdefe;
1422 // Address computation and loads and stores in PIC mode.
1423 let isNotDuplicable = 1 in {
1424 def PICADD : ARMPseudoInst<(outs GPR:$dst), (ins GPR:$a, pclabel:$cp, pred:$p),
1426 [(set GPR:$dst, (ARMpic_add GPR:$a, imm:$cp))]>;
1428 let AddedComplexity = 10 in {
1429 def PICLDR : ARMPseudoInst<(outs GPR:$dst), (ins addrmodepc:$addr, pred:$p),
1431 [(set GPR:$dst, (load addrmodepc:$addr))]>;
1433 def PICLDRH : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1435 [(set GPR:$Rt, (zextloadi16 addrmodepc:$addr))]>;
1437 def PICLDRB : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1439 [(set GPR:$Rt, (zextloadi8 addrmodepc:$addr))]>;
1441 def PICLDRSH : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1443 [(set GPR:$Rt, (sextloadi16 addrmodepc:$addr))]>;
1445 def PICLDRSB : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1447 [(set GPR:$Rt, (sextloadi8 addrmodepc:$addr))]>;
1449 let AddedComplexity = 10 in {
1450 def PICSTR : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
1451 4, IIC_iStore_r, [(store GPR:$src, addrmodepc:$addr)]>;
1453 def PICSTRH : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
1454 4, IIC_iStore_bh_r, [(truncstorei16 GPR:$src,
1455 addrmodepc:$addr)]>;
1457 def PICSTRB : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
1458 4, IIC_iStore_bh_r, [(truncstorei8 GPR:$src, addrmodepc:$addr)]>;
1460 } // isNotDuplicable = 1
1463 // LEApcrel - Load a pc-relative address into a register without offending the
1465 let neverHasSideEffects = 1, isReMaterializable = 1 in
1466 // The 'adr' mnemonic encodes differently if the label is before or after
1467 // the instruction. The {24-21} opcode bits are set by the fixup, as we don't
1468 // know until then which form of the instruction will be used.
1469 def ADR : AI1<{0,?,?,0}, (outs GPR:$Rd), (ins adrlabel:$label),
1470 MiscFrm, IIC_iALUi, "adr", "\t$Rd, $label", []> {
1473 let Inst{27-25} = 0b001;
1475 let Inst{19-16} = 0b1111;
1476 let Inst{15-12} = Rd;
1477 let Inst{11-0} = label;
1479 def LEApcrel : ARMPseudoInst<(outs GPR:$Rd), (ins i32imm:$label, pred:$p),
1482 def LEApcrelJT : ARMPseudoInst<(outs GPR:$Rd),
1483 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1486 //===----------------------------------------------------------------------===//
1487 // Control Flow Instructions.
1490 let isReturn = 1, isTerminator = 1, isBarrier = 1 in {
1492 def BX_RET : AI<(outs), (ins), BrMiscFrm, IIC_Br,
1493 "bx", "\tlr", [(ARMretflag)]>,
1494 Requires<[IsARM, HasV4T]> {
1495 let Inst{27-0} = 0b0001001011111111111100011110;
1499 def MOVPCLR : AI<(outs), (ins), BrMiscFrm, IIC_Br,
1500 "mov", "\tpc, lr", [(ARMretflag)]>,
1501 Requires<[IsARM, NoV4T]> {
1502 let Inst{27-0} = 0b0001101000001111000000001110;
1506 // Indirect branches
1507 let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
1509 def BX : AXI<(outs), (ins GPR:$dst), BrMiscFrm, IIC_Br, "bx\t$dst",
1510 [(brind GPR:$dst)]>,
1511 Requires<[IsARM, HasV4T]> {
1513 let Inst{31-4} = 0b1110000100101111111111110001;
1514 let Inst{3-0} = dst;
1517 def BX_pred : AI<(outs), (ins GPR:$dst), BrMiscFrm, IIC_Br,
1518 "bx", "\t$dst", [/* pattern left blank */]>,
1519 Requires<[IsARM, HasV4T]> {
1521 let Inst{27-4} = 0b000100101111111111110001;
1522 let Inst{3-0} = dst;
1526 // All calls clobber the non-callee saved registers. SP is marked as
1527 // a use to prevent stack-pointer assignments that appear immediately
1528 // before calls from potentially appearing dead.
1530 // On non-Darwin platforms R9 is callee-saved.
1531 // FIXME: Do we really need a non-predicated version? If so, it should
1532 // at least be a pseudo instruction expanding to the predicated version
1533 // at MC lowering time.
1534 Defs = [R0, R1, R2, R3, R12, LR, QQQQ0, QQQQ2, QQQQ3, CPSR, FPSCR],
1536 def BL : ABXI<0b1011, (outs), (ins bl_target:$func, variable_ops),
1537 IIC_Br, "bl\t$func",
1538 [(ARMcall tglobaladdr:$func)]>,
1539 Requires<[IsARM, IsNotDarwin]> {
1540 let Inst{31-28} = 0b1110;
1542 let Inst{23-0} = func;
1545 def BL_pred : ABI<0b1011, (outs), (ins bl_target:$func, variable_ops),
1546 IIC_Br, "bl", "\t$func",
1547 [(ARMcall_pred tglobaladdr:$func)]>,
1548 Requires<[IsARM, IsNotDarwin]> {
1550 let Inst{23-0} = func;
1554 def BLX : AXI<(outs), (ins GPR:$func, variable_ops), BrMiscFrm,
1555 IIC_Br, "blx\t$func",
1556 [(ARMcall GPR:$func)]>,
1557 Requires<[IsARM, HasV5T, IsNotDarwin]> {
1559 let Inst{31-4} = 0b1110000100101111111111110011;
1560 let Inst{3-0} = func;
1563 def BLX_pred : AI<(outs), (ins GPR:$func, variable_ops), BrMiscFrm,
1564 IIC_Br, "blx", "\t$func",
1565 [(ARMcall_pred GPR:$func)]>,
1566 Requires<[IsARM, HasV5T, IsNotDarwin]> {
1568 let Inst{27-4} = 0b000100101111111111110011;
1569 let Inst{3-0} = func;
1573 // Note: Restrict $func to the tGPR regclass to prevent it being in LR.
1574 def BX_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
1575 8, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
1576 Requires<[IsARM, HasV4T, IsNotDarwin]>;
1579 def BMOVPCRX_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
1580 8, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
1581 Requires<[IsARM, NoV4T, IsNotDarwin]>;
1585 // On Darwin R9 is call-clobbered.
1586 // R7 is marked as a use to prevent frame-pointer assignments from being
1587 // moved above / below calls.
1588 Defs = [R0, R1, R2, R3, R9, R12, LR, QQQQ0, QQQQ2, QQQQ3, CPSR, FPSCR],
1589 Uses = [R7, SP] in {
1590 def BLr9 : ARMPseudoExpand<(outs), (ins bl_target:$func, variable_ops),
1592 [(ARMcall tglobaladdr:$func)], (BL bl_target:$func)>,
1593 Requires<[IsARM, IsDarwin]>;
1595 def BLr9_pred : ARMPseudoExpand<(outs),
1596 (ins bl_target:$func, pred:$p, variable_ops),
1598 [(ARMcall_pred tglobaladdr:$func)],
1599 (BL_pred bl_target:$func, pred:$p)>,
1600 Requires<[IsARM, IsDarwin]>;
1603 def BLXr9 : ARMPseudoExpand<(outs), (ins GPR:$func, variable_ops),
1605 [(ARMcall GPR:$func)],
1607 Requires<[IsARM, HasV5T, IsDarwin]>;
1609 def BLXr9_pred: ARMPseudoExpand<(outs), (ins GPR:$func, pred:$p,variable_ops),
1611 [(ARMcall_pred GPR:$func)],
1612 (BLX_pred GPR:$func, pred:$p)>,
1613 Requires<[IsARM, HasV5T, IsDarwin]>;
1616 // Note: Restrict $func to the tGPR regclass to prevent it being in LR.
1617 def BXr9_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
1618 8, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
1619 Requires<[IsARM, HasV4T, IsDarwin]>;
1622 def BMOVPCRXr9_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
1623 8, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
1624 Requires<[IsARM, NoV4T, IsDarwin]>;
1627 let isBranch = 1, isTerminator = 1 in {
1628 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
1629 // a two-value operand where a dag node expects two operands. :(
1630 def Bcc : ABI<0b1010, (outs), (ins br_target:$target),
1631 IIC_Br, "b", "\t$target",
1632 [/*(ARMbrcond bb:$target, imm:$cc, CCR:$ccr)*/]> {
1634 let Inst{23-0} = target;
1637 let isBarrier = 1 in {
1638 // B is "predicable" since it's just a Bcc with an 'always' condition.
1639 let isPredicable = 1 in
1640 // FIXME: We shouldn't need this pseudo at all. Just using Bcc directly
1641 // should be sufficient.
1642 // FIXME: Is B really a Barrier? That doesn't seem right.
1643 def B : ARMPseudoExpand<(outs), (ins br_target:$target), 4, IIC_Br,
1644 [(br bb:$target)], (Bcc br_target:$target, (ops 14, zero_reg))>;
1646 let isNotDuplicable = 1, isIndirectBranch = 1 in {
1647 def BR_JTr : ARMPseudoInst<(outs),
1648 (ins GPR:$target, i32imm:$jt, i32imm:$id),
1650 [(ARMbrjt GPR:$target, tjumptable:$jt, imm:$id)]>;
1651 // FIXME: This shouldn't use the generic "addrmode2," but rather be split
1652 // into i12 and rs suffixed versions.
1653 def BR_JTm : ARMPseudoInst<(outs),
1654 (ins addrmode2:$target, i32imm:$jt, i32imm:$id),
1656 [(ARMbrjt (i32 (load addrmode2:$target)), tjumptable:$jt,
1658 def BR_JTadd : ARMPseudoInst<(outs),
1659 (ins GPR:$target, GPR:$idx, i32imm:$jt, i32imm:$id),
1661 [(ARMbrjt (add GPR:$target, GPR:$idx), tjumptable:$jt,
1663 } // isNotDuplicable = 1, isIndirectBranch = 1
1669 def BLXi : AXI<(outs), (ins br_target:$target), BrMiscFrm, NoItinerary,
1670 "blx\t$target", []>,
1671 Requires<[IsARM, HasV5T]> {
1672 let Inst{31-25} = 0b1111101;
1674 let Inst{23-0} = target{24-1};
1675 let Inst{24} = target{0};
1678 // Branch and Exchange Jazelle
1679 def BXJ : ABI<0b0001, (outs), (ins GPR:$func), NoItinerary, "bxj", "\t$func",
1680 [/* pattern left blank */]> {
1682 let Inst{23-20} = 0b0010;
1683 let Inst{19-8} = 0xfff;
1684 let Inst{7-4} = 0b0010;
1685 let Inst{3-0} = func;
1690 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
1692 let Defs = [R0, R1, R2, R3, R9, R12, QQQQ0, QQQQ2, QQQQ3, PC],
1694 def TCRETURNdi : PseudoInst<(outs), (ins i32imm:$dst, variable_ops),
1695 IIC_Br, []>, Requires<[IsDarwin]>;
1697 def TCRETURNri : PseudoInst<(outs), (ins tcGPR:$dst, variable_ops),
1698 IIC_Br, []>, Requires<[IsDarwin]>;
1700 def TAILJMPd : ARMPseudoExpand<(outs), (ins br_target:$dst, variable_ops),
1702 (Bcc br_target:$dst, (ops 14, zero_reg))>,
1703 Requires<[IsARM, IsDarwin]>;
1705 def TAILJMPr : ARMPseudoExpand<(outs), (ins tcGPR:$dst, variable_ops),
1708 Requires<[IsARM, IsDarwin]>;
1712 // Non-Darwin versions (the difference is R9).
1713 let Defs = [R0, R1, R2, R3, R12, QQQQ0, QQQQ2, QQQQ3, PC],
1715 def TCRETURNdiND : PseudoInst<(outs), (ins i32imm:$dst, variable_ops),
1716 IIC_Br, []>, Requires<[IsNotDarwin]>;
1718 def TCRETURNriND : PseudoInst<(outs), (ins tcGPR:$dst, variable_ops),
1719 IIC_Br, []>, Requires<[IsNotDarwin]>;
1721 def TAILJMPdND : ARMPseudoExpand<(outs), (ins brtarget:$dst, variable_ops),
1723 (Bcc br_target:$dst, (ops 14, zero_reg))>,
1724 Requires<[IsARM, IsNotDarwin]>;
1726 def TAILJMPrND : ARMPseudoExpand<(outs), (ins tcGPR:$dst, variable_ops),
1729 Requires<[IsARM, IsNotDarwin]>;
1737 // Secure Monitor Call is a system instruction -- for disassembly only
1738 def SMC : ABI<0b0001, (outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
1741 let Inst{23-4} = 0b01100000000000000111;
1742 let Inst{3-0} = opt;
1745 // Supervisor Call (Software Interrupt)
1746 let isCall = 1, Uses = [SP] in {
1747 def SVC : ABI<0b1111, (outs), (ins imm24b:$svc), IIC_Br, "svc", "\t$svc", []> {
1749 let Inst{23-0} = svc;
1753 // Store Return State
1754 class SRSI<bit wb, string asm>
1755 : XI<(outs), (ins imm0_31:$mode), AddrModeNone, 4, IndexModeNone, BrFrm,
1756 NoItinerary, asm, "", []> {
1758 let Inst{31-28} = 0b1111;
1759 let Inst{27-25} = 0b100;
1763 let Inst{19-16} = 0b1101; // SP
1764 let Inst{15-5} = 0b00000101000;
1765 let Inst{4-0} = mode;
1768 def SRSDA : SRSI<0, "srsda\tsp, $mode"> {
1769 let Inst{24-23} = 0;
1771 def SRSDA_UPD : SRSI<1, "srsda\tsp!, $mode"> {
1772 let Inst{24-23} = 0;
1774 def SRSDB : SRSI<0, "srsdb\tsp, $mode"> {
1775 let Inst{24-23} = 0b10;
1777 def SRSDB_UPD : SRSI<1, "srsdb\tsp!, $mode"> {
1778 let Inst{24-23} = 0b10;
1780 def SRSIA : SRSI<0, "srsia\tsp, $mode"> {
1781 let Inst{24-23} = 0b01;
1783 def SRSIA_UPD : SRSI<1, "srsia\tsp!, $mode"> {
1784 let Inst{24-23} = 0b01;
1786 def SRSIB : SRSI<0, "srsib\tsp, $mode"> {
1787 let Inst{24-23} = 0b11;
1789 def SRSIB_UPD : SRSI<1, "srsib\tsp!, $mode"> {
1790 let Inst{24-23} = 0b11;
1793 // Return From Exception
1794 class RFEI<bit wb, string asm>
1795 : XI<(outs), (ins GPR:$Rn), AddrModeNone, 4, IndexModeNone, BrFrm,
1796 NoItinerary, asm, "", []> {
1798 let Inst{31-28} = 0b1111;
1799 let Inst{27-25} = 0b100;
1803 let Inst{19-16} = Rn;
1804 let Inst{15-0} = 0xa00;
1807 def RFEDA : RFEI<0, "rfeda\t$Rn"> {
1808 let Inst{24-23} = 0;
1810 def RFEDA_UPD : RFEI<1, "rfeda\t$Rn!"> {
1811 let Inst{24-23} = 0;
1813 def RFEDB : RFEI<0, "rfedb\t$Rn"> {
1814 let Inst{24-23} = 0b10;
1816 def RFEDB_UPD : RFEI<1, "rfedb\t$Rn!"> {
1817 let Inst{24-23} = 0b10;
1819 def RFEIA : RFEI<0, "rfeia\t$Rn"> {
1820 let Inst{24-23} = 0b01;
1822 def RFEIA_UPD : RFEI<1, "rfeia\t$Rn!"> {
1823 let Inst{24-23} = 0b01;
1825 def RFEIB : RFEI<0, "rfeib\t$Rn"> {
1826 let Inst{24-23} = 0b11;
1828 def RFEIB_UPD : RFEI<1, "rfeib\t$Rn!"> {
1829 let Inst{24-23} = 0b11;
1832 //===----------------------------------------------------------------------===//
1833 // Load / store Instructions.
1839 defm LDR : AI_ldr1<0, "ldr", IIC_iLoad_r, IIC_iLoad_si,
1840 UnOpFrag<(load node:$Src)>>;
1841 defm LDRB : AI_ldr1<1, "ldrb", IIC_iLoad_bh_r, IIC_iLoad_bh_si,
1842 UnOpFrag<(zextloadi8 node:$Src)>>;
1843 defm STR : AI_str1<0, "str", IIC_iStore_r, IIC_iStore_si,
1844 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1845 defm STRB : AI_str1<1, "strb", IIC_iStore_bh_r, IIC_iStore_bh_si,
1846 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1848 // Special LDR for loads from non-pc-relative constpools.
1849 let canFoldAsLoad = 1, mayLoad = 1, neverHasSideEffects = 1,
1850 isReMaterializable = 1, isCodeGenOnly = 1 in
1851 def LDRcp : AI2ldst<0b010, 1, 0, (outs GPR:$Rt), (ins addrmode_imm12:$addr),
1852 AddrMode_i12, LdFrm, IIC_iLoad_r, "ldr", "\t$Rt, $addr",
1856 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1857 let Inst{19-16} = 0b1111;
1858 let Inst{15-12} = Rt;
1859 let Inst{11-0} = addr{11-0}; // imm12
1862 // Loads with zero extension
1863 def LDRH : AI3ld<0b1011, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
1864 IIC_iLoad_bh_r, "ldrh", "\t$Rt, $addr",
1865 [(set GPR:$Rt, (zextloadi16 addrmode3:$addr))]>;
1867 // Loads with sign extension
1868 def LDRSH : AI3ld<0b1111, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
1869 IIC_iLoad_bh_r, "ldrsh", "\t$Rt, $addr",
1870 [(set GPR:$Rt, (sextloadi16 addrmode3:$addr))]>;
1872 def LDRSB : AI3ld<0b1101, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
1873 IIC_iLoad_bh_r, "ldrsb", "\t$Rt, $addr",
1874 [(set GPR:$Rt, (sextloadi8 addrmode3:$addr))]>;
1876 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1878 def LDRD : AI3ld<0b1101, 0, (outs GPR:$Rd, GPR:$dst2),
1879 (ins addrmode3:$addr), LdMiscFrm,
1880 IIC_iLoad_d_r, "ldrd", "\t$Rd, $dst2, $addr",
1881 []>, Requires<[IsARM, HasV5TE]>;
1885 multiclass AI2_ldridx<bit isByte, string opc, InstrItinClass itin> {
1886 def _PRE : AI2ldstidx<1, isByte, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1887 (ins addrmode2:$addr), IndexModePre, LdFrm, itin,
1888 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
1894 let Inst{25} = addr{13};
1895 let Inst{23} = addr{12};
1896 let Inst{19-16} = addr{17-14};
1897 let Inst{11-0} = addr{11-0};
1898 let AsmMatchConverter = "cvtLdWriteBackRegAddrMode2";
1901 def _POST_REG : AI2ldstidx<1, isByte, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1902 (ins GPR:$Rn, am2offset_reg:$offset),
1903 IndexModePost, LdFrm, itin,
1904 opc, "\t$Rt, [$Rn], $offset", "$Rn = $Rn_wb", []> {
1910 let Inst{23} = offset{12};
1911 let Inst{19-16} = Rn;
1912 let Inst{11-0} = offset{11-0};
1913 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
1916 def _POST_IMM : AI2ldstidx<1, isByte, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1917 (ins GPR:$Rn, am2offset_imm:$offset),
1918 IndexModePost, LdFrm, itin,
1919 opc, "\t$Rt, [$Rn], $offset", "$Rn = $Rn_wb", []> {
1925 let Inst{23} = offset{12};
1926 let Inst{19-16} = Rn;
1927 let Inst{11-0} = offset{11-0};
1928 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
1932 let mayLoad = 1, neverHasSideEffects = 1 in {
1933 defm LDR : AI2_ldridx<0, "ldr", IIC_iLoad_ru>;
1934 defm LDRB : AI2_ldridx<1, "ldrb", IIC_iLoad_bh_ru>;
1937 multiclass AI3_ldridx<bits<4> op, bit op20, string opc, InstrItinClass itin> {
1938 def _PRE : AI3ldstidx<op, op20, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1939 (ins addrmode3:$addr), IndexModePre,
1941 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
1943 let Inst{23} = addr{8}; // U bit
1944 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
1945 let Inst{19-16} = addr{12-9}; // Rn
1946 let Inst{11-8} = addr{7-4}; // imm7_4/zero
1947 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
1949 def _POST : AI3ldstidx<op, op20, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1950 (ins GPR:$Rn, am3offset:$offset), IndexModePost,
1952 opc, "\t$Rt, [$Rn], $offset", "$Rn = $Rn_wb", []> {
1955 let Inst{23} = offset{8}; // U bit
1956 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
1957 let Inst{19-16} = Rn;
1958 let Inst{11-8} = offset{7-4}; // imm7_4/zero
1959 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
1963 let mayLoad = 1, neverHasSideEffects = 1 in {
1964 defm LDRH : AI3_ldridx<0b1011, 1, "ldrh", IIC_iLoad_bh_ru>;
1965 defm LDRSH : AI3_ldridx<0b1111, 1, "ldrsh", IIC_iLoad_bh_ru>;
1966 defm LDRSB : AI3_ldridx<0b1101, 1, "ldrsb", IIC_iLoad_bh_ru>;
1967 let hasExtraDefRegAllocReq = 1 in {
1968 def LDRD_PRE : AI3ldstidx<0b1101, 0, 1, 1, (outs GPR:$Rt, GPR:$Rt2, GPR:$Rn_wb),
1969 (ins addrmode3:$addr), IndexModePre,
1970 LdMiscFrm, IIC_iLoad_d_ru,
1971 "ldrd", "\t$Rt, $Rt2, $addr!",
1972 "$addr.base = $Rn_wb", []> {
1974 let Inst{23} = addr{8}; // U bit
1975 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
1976 let Inst{19-16} = addr{12-9}; // Rn
1977 let Inst{11-8} = addr{7-4}; // imm7_4/zero
1978 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
1979 let DecoderMethod = "DecodeAddrMode3Instruction";
1981 def LDRD_POST: AI3ldstidx<0b1101, 0, 1, 0, (outs GPR:$Rt, GPR:$Rt2, GPR:$Rn_wb),
1982 (ins GPR:$Rn, am3offset:$offset), IndexModePost,
1983 LdMiscFrm, IIC_iLoad_d_ru,
1984 "ldrd", "\t$Rt, $Rt2, [$Rn], $offset",
1985 "$Rn = $Rn_wb", []> {
1988 let Inst{23} = offset{8}; // U bit
1989 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
1990 let Inst{19-16} = Rn;
1991 let Inst{11-8} = offset{7-4}; // imm7_4/zero
1992 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
1993 let DecoderMethod = "DecodeAddrMode3Instruction";
1995 } // hasExtraDefRegAllocReq = 1
1996 } // mayLoad = 1, neverHasSideEffects = 1
1998 // LDRT, LDRBT, LDRSBT, LDRHT, LDRSHT are for disassembly only.
1999 let mayLoad = 1, neverHasSideEffects = 1 in {
2000 def LDRT : AI2ldstidx<1, 0, 0, (outs GPR:$Rt, GPR:$base_wb),
2001 (ins addrmode2:$addr), IndexModePost, LdFrm, IIC_iLoad_ru,
2002 "ldrt", "\t$Rt, $addr", "$addr.base = $base_wb", []> {
2004 // {13} 1 == Rm, 0 == imm12
2008 let Inst{25} = addr{13};
2009 let Inst{23} = addr{12};
2010 let Inst{21} = 1; // overwrite
2011 let Inst{19-16} = addr{17-14};
2012 let Inst{11-0} = addr{11-0};
2013 let AsmMatchConverter = "cvtLdWriteBackRegAddrMode2";
2015 def LDRBT : AI2ldstidx<1, 1, 0, (outs GPR:$Rt, GPR:$base_wb),
2016 (ins addrmode2:$addr), IndexModePost, LdFrm, IIC_iLoad_bh_ru,
2017 "ldrbt", "\t$Rt, $addr", "$addr.base = $base_wb", []> {
2019 // {13} 1 == Rm, 0 == imm12
2023 let Inst{25} = addr{13};
2024 let Inst{23} = addr{12};
2025 let Inst{21} = 1; // overwrite
2026 let Inst{19-16} = addr{17-14};
2027 let Inst{11-0} = addr{11-0};
2028 let AsmMatchConverter = "cvtLdWriteBackRegAddrMode2";
2031 multiclass AI3ldrT<bits<4> op, string opc> {
2032 def i : AI3ldstidxT<op, 1, (outs GPR:$Rt, GPR:$base_wb),
2033 (ins addr_offset_none:$addr, postidx_imm8:$offset),
2034 IndexModePost, LdMiscFrm, IIC_iLoad_bh_ru, opc,
2035 "\t$Rt, $addr, $offset", "$addr.base = $base_wb", []> {
2037 let Inst{23} = offset{8};
2039 let Inst{11-8} = offset{7-4};
2040 let Inst{3-0} = offset{3-0};
2041 let AsmMatchConverter = "cvtLdExtTWriteBackImm";
2043 def r : AI3ldstidxT<op, 1, (outs GPR:$Rt, GPR:$base_wb),
2044 (ins addr_offset_none:$addr, postidx_reg:$Rm),
2045 IndexModePost, LdMiscFrm, IIC_iLoad_bh_ru, opc,
2046 "\t$Rt, $addr, $Rm", "$addr.base = $base_wb", []> {
2048 let Inst{23} = Rm{4};
2051 let Inst{3-0} = Rm{3-0};
2052 let AsmMatchConverter = "cvtLdExtTWriteBackReg";
2056 defm LDRSBT : AI3ldrT<0b1101, "ldrsbt">;
2057 defm LDRHT : AI3ldrT<0b1011, "ldrht">;
2058 defm LDRSHT : AI3ldrT<0b1111, "ldrsht">;
2063 // Stores with truncate
2064 def STRH : AI3str<0b1011, (outs), (ins GPR:$Rt, addrmode3:$addr), StMiscFrm,
2065 IIC_iStore_bh_r, "strh", "\t$Rt, $addr",
2066 [(truncstorei16 GPR:$Rt, addrmode3:$addr)]>;
2069 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
2070 def STRD : AI3str<0b1111, (outs), (ins GPR:$Rt, GPR:$src2, addrmode3:$addr),
2071 StMiscFrm, IIC_iStore_d_r,
2072 "strd", "\t$Rt, $src2, $addr", []>,
2073 Requires<[IsARM, HasV5TE]> {
2078 def STR_PRE_REG : AI2stridx_reg<0, 1, (outs GPR:$Rn_wb),
2079 (ins GPR:$Rt, GPR:$Rn, am2offset_reg:$offset),
2080 IndexModePre, StFrm, IIC_iStore_ru,
2081 "str", "\t$Rt, [$Rn, $offset]!",
2082 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
2084 (pre_store GPR:$Rt, GPR:$Rn, am2offset_reg:$offset))]>;
2085 def STR_PRE_IMM : AI2stridx_imm<0, 1, (outs GPR:$Rn_wb),
2086 (ins GPR:$Rt, GPR:$Rn, am2offset_imm:$offset),
2087 IndexModePre, StFrm, IIC_iStore_ru,
2088 "str", "\t$Rt, [$Rn, $offset]!",
2089 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
2091 (pre_store GPR:$Rt, GPR:$Rn, am2offset_imm:$offset))]>;
2095 def STR_POST_REG : AI2stridx_reg<0, 0, (outs GPR:$Rn_wb),
2096 (ins GPR:$Rt, GPR:$Rn, am2offset_reg:$offset),
2097 IndexModePost, StFrm, IIC_iStore_ru,
2098 "str", "\t$Rt, [$Rn], $offset",
2099 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
2101 (post_store GPR:$Rt, GPR:$Rn, am2offset_reg:$offset))]>;
2102 def STR_POST_IMM : AI2stridx_imm<0, 0, (outs GPR:$Rn_wb),
2103 (ins GPR:$Rt, GPR:$Rn, am2offset_imm:$offset),
2104 IndexModePost, StFrm, IIC_iStore_ru,
2105 "str", "\t$Rt, [$Rn], $offset",
2106 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
2108 (post_store GPR:$Rt, GPR:$Rn, am2offset_imm:$offset))]>;
2111 def STRB_PRE_REG : AI2stridx_reg<1, 1, (outs GPR:$Rn_wb),
2112 (ins GPR:$Rt, GPR:$Rn, am2offset_reg:$offset),
2113 IndexModePre, StFrm, IIC_iStore_bh_ru,
2114 "strb", "\t$Rt, [$Rn, $offset]!",
2115 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
2116 [(set GPR:$Rn_wb, (pre_truncsti8 GPR:$Rt,
2117 GPR:$Rn, am2offset_reg:$offset))]>;
2118 def STRB_PRE_IMM : AI2stridx_imm<1, 1, (outs GPR:$Rn_wb),
2119 (ins GPR:$Rt, GPR:$Rn, am2offset_imm:$offset),
2120 IndexModePre, StFrm, IIC_iStore_bh_ru,
2121 "strb", "\t$Rt, [$Rn, $offset]!",
2122 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
2123 [(set GPR:$Rn_wb, (pre_truncsti8 GPR:$Rt,
2124 GPR:$Rn, am2offset_imm:$offset))]>;
2126 def STRB_POST_REG: AI2stridx_reg<1, 0, (outs GPR:$Rn_wb),
2127 (ins GPR:$Rt, GPR:$Rn, am2offset_reg:$offset),
2128 IndexModePost, StFrm, IIC_iStore_bh_ru,
2129 "strb", "\t$Rt, [$Rn], $offset",
2130 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
2131 [(set GPR:$Rn_wb, (post_truncsti8 GPR:$Rt,
2132 GPR:$Rn, am2offset_reg:$offset))]>;
2133 def STRB_POST_IMM: AI2stridx_imm<1, 0, (outs GPR:$Rn_wb),
2134 (ins GPR:$Rt, GPR:$Rn, am2offset_imm:$offset),
2135 IndexModePost, StFrm, IIC_iStore_bh_ru,
2136 "strb", "\t$Rt, [$Rn], $offset",
2137 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
2138 [(set GPR:$Rn_wb, (post_truncsti8 GPR:$Rt,
2139 GPR:$Rn, am2offset_imm:$offset))]>;
2142 def STRH_PRE : AI3stridx<0b1011, 0, 1, (outs GPR:$Rn_wb),
2143 (ins GPR:$Rt, GPR:$Rn, am3offset:$offset),
2144 IndexModePre, StMiscFrm, IIC_iStore_ru,
2145 "strh", "\t$Rt, [$Rn, $offset]!",
2146 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
2148 (pre_truncsti16 GPR:$Rt, GPR:$Rn, am3offset:$offset))]>;
2150 def STRH_POST: AI3stridx<0b1011, 0, 0, (outs GPR:$Rn_wb),
2151 (ins GPR:$Rt, GPR:$Rn, am3offset:$offset),
2152 IndexModePost, StMiscFrm, IIC_iStore_bh_ru,
2153 "strh", "\t$Rt, [$Rn], $offset",
2154 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
2155 [(set GPR:$Rn_wb, (post_truncsti16 GPR:$Rt,
2156 GPR:$Rn, am3offset:$offset))]>;
2158 // For disassembly only
2159 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in {
2160 def STRD_PRE : AI3stdpr<(outs GPR:$base_wb),
2161 (ins GPR:$src1, GPR:$src2, GPR:$base, am3offset:$offset),
2162 StMiscFrm, IIC_iStore_d_ru,
2163 "strd", "\t$src1, $src2, [$base, $offset]!",
2164 "$base = $base_wb", []> {
2168 let Inst{23} = offset{8}; // U bit
2169 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
2170 let Inst{19-16} = base;
2171 let Inst{15-12} = src1;
2172 let Inst{11-8} = offset{7-4};
2173 let Inst{3-0} = offset{3-0};
2175 let DecoderMethod = "DecodeAddrMode3Instruction";
2178 // For disassembly only
2179 def STRD_POST: AI3stdpo<(outs GPR:$base_wb),
2180 (ins GPR:$src1, GPR:$src2, GPR:$base, am3offset:$offset),
2181 StMiscFrm, IIC_iStore_d_ru,
2182 "strd", "\t$src1, $src2, [$base], $offset",
2183 "$base = $base_wb", []> {
2187 let Inst{23} = offset{8}; // U bit
2188 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
2189 let Inst{19-16} = base;
2190 let Inst{15-12} = src1;
2191 let Inst{11-8} = offset{7-4};
2192 let Inst{3-0} = offset{3-0};
2194 let DecoderMethod = "DecodeAddrMode3Instruction";
2196 } // mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1
2198 // STRT, STRBT, and STRHT
2200 def STRTr : AI2stridxT<0, 0, (outs GPR:$Rn_wb),
2201 (ins GPR:$Rt, ldst_so_reg:$addr),
2202 IndexModePost, StFrm, IIC_iStore_ru,
2203 "strt", "\t$Rt, $addr", "$addr.base = $Rn_wb",
2204 [/* For disassembly only; pattern left blank */]> {
2206 let Inst{21} = 1; // overwrite
2208 let AsmMatchConverter = "cvtStWriteBackRegAddrMode2";
2211 def STRTi : AI2stridxT<0, 0, (outs GPR:$Rn_wb),
2212 (ins GPR:$Rt, addrmode_imm12:$addr),
2213 IndexModePost, StFrm, IIC_iStore_ru,
2214 "strt", "\t$Rt, $addr", "$addr.base = $Rn_wb",
2215 [/* For disassembly only; pattern left blank */]> {
2217 let Inst{21} = 1; // overwrite
2218 let AsmMatchConverter = "cvtStWriteBackRegAddrMode2";
2222 def STRBTr : AI2stridxT<1, 0, (outs GPR:$Rn_wb),
2223 (ins GPR:$Rt, ldst_so_reg:$addr),
2224 IndexModePost, StFrm, IIC_iStore_bh_ru,
2225 "strbt", "\t$Rt, $addr", "$addr.base = $Rn_wb",
2226 [/* For disassembly only; pattern left blank */]> {
2228 let Inst{21} = 1; // overwrite
2230 let AsmMatchConverter = "cvtStWriteBackRegAddrMode2";
2233 def STRBTi : AI2stridxT<1, 0, (outs GPR:$Rn_wb),
2234 (ins GPR:$Rt, addrmode_imm12:$addr),
2235 IndexModePost, StFrm, IIC_iStore_bh_ru,
2236 "strbt", "\t$Rt, $addr", "$addr.base = $Rn_wb",
2237 [/* For disassembly only; pattern left blank */]> {
2239 let Inst{21} = 1; // overwrite
2240 let AsmMatchConverter = "cvtStWriteBackRegAddrMode2";
2243 multiclass AI3strT<bits<4> op, string opc> {
2244 def i : AI3ldstidxT<op, 0, (outs GPR:$base_wb),
2245 (ins GPR:$Rt, addr_offset_none:$addr, postidx_imm8:$offset),
2246 IndexModePost, StMiscFrm, IIC_iStore_bh_ru, opc,
2247 "\t$Rt, $addr, $offset", "$addr.base = $base_wb", []> {
2249 let Inst{23} = offset{8};
2251 let Inst{11-8} = offset{7-4};
2252 let Inst{3-0} = offset{3-0};
2253 let AsmMatchConverter = "cvtStExtTWriteBackImm";
2255 def r : AI3ldstidxT<op, 0, (outs GPR:$base_wb),
2256 (ins GPR:$Rt, addr_offset_none:$addr, postidx_reg:$Rm),
2257 IndexModePost, StMiscFrm, IIC_iStore_bh_ru, opc,
2258 "\t$Rt, $addr, $Rm", "$addr.base = $base_wb", []> {
2260 let Inst{23} = Rm{4};
2263 let Inst{3-0} = Rm{3-0};
2264 let AsmMatchConverter = "cvtStExtTWriteBackReg";
2269 defm STRHT : AI3strT<0b1011, "strht">;
2272 //===----------------------------------------------------------------------===//
2273 // Load / store multiple Instructions.
2276 multiclass arm_ldst_mult<string asm, bit L_bit, Format f,
2277 InstrItinClass itin, InstrItinClass itin_upd> {
2278 // IA is the default, so no need for an explicit suffix on the
2279 // mnemonic here. Without it is the cannonical spelling.
2281 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2282 IndexModeNone, f, itin,
2283 !strconcat(asm, "${p}\t$Rn, $regs"), "", []> {
2284 let Inst{24-23} = 0b01; // Increment After
2285 let Inst{21} = 0; // No writeback
2286 let Inst{20} = L_bit;
2289 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2290 IndexModeUpd, f, itin_upd,
2291 !strconcat(asm, "${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
2292 let Inst{24-23} = 0b01; // Increment After
2293 let Inst{21} = 1; // Writeback
2294 let Inst{20} = L_bit;
2297 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2298 IndexModeNone, f, itin,
2299 !strconcat(asm, "da${p}\t$Rn, $regs"), "", []> {
2300 let Inst{24-23} = 0b00; // Decrement After
2301 let Inst{21} = 0; // No writeback
2302 let Inst{20} = L_bit;
2305 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2306 IndexModeUpd, f, itin_upd,
2307 !strconcat(asm, "da${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
2308 let Inst{24-23} = 0b00; // Decrement After
2309 let Inst{21} = 1; // Writeback
2310 let Inst{20} = L_bit;
2313 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2314 IndexModeNone, f, itin,
2315 !strconcat(asm, "db${p}\t$Rn, $regs"), "", []> {
2316 let Inst{24-23} = 0b10; // Decrement Before
2317 let Inst{21} = 0; // No writeback
2318 let Inst{20} = L_bit;
2321 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2322 IndexModeUpd, f, itin_upd,
2323 !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
2324 let Inst{24-23} = 0b10; // Decrement Before
2325 let Inst{21} = 1; // Writeback
2326 let Inst{20} = L_bit;
2329 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2330 IndexModeNone, f, itin,
2331 !strconcat(asm, "ib${p}\t$Rn, $regs"), "", []> {
2332 let Inst{24-23} = 0b11; // Increment Before
2333 let Inst{21} = 0; // No writeback
2334 let Inst{20} = L_bit;
2337 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2338 IndexModeUpd, f, itin_upd,
2339 !strconcat(asm, "ib${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
2340 let Inst{24-23} = 0b11; // Increment Before
2341 let Inst{21} = 1; // Writeback
2342 let Inst{20} = L_bit;
2346 let neverHasSideEffects = 1 in {
2348 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
2349 defm LDM : arm_ldst_mult<"ldm", 1, LdStMulFrm, IIC_iLoad_m, IIC_iLoad_mu>;
2351 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
2352 defm STM : arm_ldst_mult<"stm", 0, LdStMulFrm, IIC_iStore_m, IIC_iStore_mu>;
2354 } // neverHasSideEffects
2356 // FIXME: remove when we have a way to marking a MI with these properties.
2357 // FIXME: Should pc be an implicit operand like PICADD, etc?
2358 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2359 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2360 def LDMIA_RET : ARMPseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2361 reglist:$regs, variable_ops),
2362 4, IIC_iLoad_mBr, [],
2363 (LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
2364 RegConstraint<"$Rn = $wb">;
2366 //===----------------------------------------------------------------------===//
2367 // Move Instructions.
2370 let neverHasSideEffects = 1 in
2371 def MOVr : AsI1<0b1101, (outs GPR:$Rd), (ins GPR:$Rm), DPFrm, IIC_iMOVr,
2372 "mov", "\t$Rd, $Rm", []>, UnaryDP {
2376 let Inst{19-16} = 0b0000;
2377 let Inst{11-4} = 0b00000000;
2380 let Inst{15-12} = Rd;
2383 // A version for the smaller set of tail call registers.
2384 let neverHasSideEffects = 1 in
2385 def MOVr_TC : AsI1<0b1101, (outs tcGPR:$Rd), (ins tcGPR:$Rm), DPFrm,
2386 IIC_iMOVr, "mov", "\t$Rd, $Rm", []>, UnaryDP {
2390 let Inst{11-4} = 0b00000000;
2393 let Inst{15-12} = Rd;
2396 def MOVsr : AsI1<0b1101, (outs GPR:$Rd), (ins shift_so_reg_reg:$src),
2397 DPSoRegRegFrm, IIC_iMOVsr,
2398 "mov", "\t$Rd, $src", [(set GPR:$Rd, shift_so_reg_reg:$src)]>,
2402 let Inst{15-12} = Rd;
2403 let Inst{19-16} = 0b0000;
2404 let Inst{11-8} = src{11-8};
2406 let Inst{6-5} = src{6-5};
2408 let Inst{3-0} = src{3-0};
2412 def MOVsi : AsI1<0b1101, (outs GPR:$Rd), (ins shift_so_reg_imm:$src),
2413 DPSoRegImmFrm, IIC_iMOVsr,
2414 "mov", "\t$Rd, $src", [(set GPR:$Rd, shift_so_reg_imm:$src)]>,
2418 let Inst{15-12} = Rd;
2419 let Inst{19-16} = 0b0000;
2420 let Inst{11-5} = src{11-5};
2422 let Inst{3-0} = src{3-0};
2428 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
2429 def MOVi : AsI1<0b1101, (outs GPR:$Rd), (ins so_imm:$imm), DPFrm, IIC_iMOVi,
2430 "mov", "\t$Rd, $imm", [(set GPR:$Rd, so_imm:$imm)]>, UnaryDP {
2434 let Inst{15-12} = Rd;
2435 let Inst{19-16} = 0b0000;
2436 let Inst{11-0} = imm;
2439 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
2440 def MOVi16 : AI1<0b1000, (outs GPR:$Rd), (ins imm0_65535_expr:$imm),
2442 "movw", "\t$Rd, $imm",
2443 [(set GPR:$Rd, imm0_65535:$imm)]>,
2444 Requires<[IsARM, HasV6T2]>, UnaryDP {
2447 let Inst{15-12} = Rd;
2448 let Inst{11-0} = imm{11-0};
2449 let Inst{19-16} = imm{15-12};
2454 def : InstAlias<"mov${p} $Rd, $imm",
2455 (MOVi16 GPR:$Rd, imm0_65535_expr:$imm, pred:$p)>,
2458 def MOVi16_ga_pcrel : PseudoInst<(outs GPR:$Rd),
2459 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
2461 let Constraints = "$src = $Rd" in {
2462 def MOVTi16 : AI1<0b1010, (outs GPR:$Rd), (ins GPR:$src, imm0_65535_expr:$imm),
2464 "movt", "\t$Rd, $imm",
2466 (or (and GPR:$src, 0xffff),
2467 lo16AllZero:$imm))]>, UnaryDP,
2468 Requires<[IsARM, HasV6T2]> {
2471 let Inst{15-12} = Rd;
2472 let Inst{11-0} = imm{11-0};
2473 let Inst{19-16} = imm{15-12};
2478 def MOVTi16_ga_pcrel : PseudoInst<(outs GPR:$Rd),
2479 (ins GPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
2483 def : ARMPat<(or GPR:$src, 0xffff0000), (MOVTi16 GPR:$src, 0xffff)>,
2484 Requires<[IsARM, HasV6T2]>;
2486 let Uses = [CPSR] in
2487 def RRX: PseudoInst<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVsi,
2488 [(set GPR:$Rd, (ARMrrx GPR:$Rm))]>, UnaryDP,
2491 // These aren't really mov instructions, but we have to define them this way
2492 // due to flag operands.
2494 let Defs = [CPSR] in {
2495 def MOVsrl_flag : PseudoInst<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
2496 [(set GPR:$dst, (ARMsrl_flag GPR:$src))]>, UnaryDP,
2498 def MOVsra_flag : PseudoInst<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
2499 [(set GPR:$dst, (ARMsra_flag GPR:$src))]>, UnaryDP,
2503 //===----------------------------------------------------------------------===//
2504 // Extend Instructions.
2509 def SXTB : AI_ext_rrot<0b01101010,
2510 "sxtb", UnOpFrag<(sext_inreg node:$Src, i8)>>;
2511 def SXTH : AI_ext_rrot<0b01101011,
2512 "sxth", UnOpFrag<(sext_inreg node:$Src, i16)>>;
2514 def SXTAB : AI_exta_rrot<0b01101010,
2515 "sxtab", BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
2516 def SXTAH : AI_exta_rrot<0b01101011,
2517 "sxtah", BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
2519 def SXTB16 : AI_ext_rrot_np<0b01101000, "sxtb16">;
2521 def SXTAB16 : AI_exta_rrot_np<0b01101000, "sxtab16">;
2525 let AddedComplexity = 16 in {
2526 def UXTB : AI_ext_rrot<0b01101110,
2527 "uxtb" , UnOpFrag<(and node:$Src, 0x000000FF)>>;
2528 def UXTH : AI_ext_rrot<0b01101111,
2529 "uxth" , UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
2530 def UXTB16 : AI_ext_rrot<0b01101100,
2531 "uxtb16", UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
2533 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
2534 // The transformation should probably be done as a combiner action
2535 // instead so we can include a check for masking back in the upper
2536 // eight bits of the source into the lower eight bits of the result.
2537 //def : ARMV6Pat<(and (shl GPR:$Src, (i32 8)), 0xFF00FF),
2538 // (UXTB16r_rot GPR:$Src, 3)>;
2539 def : ARMV6Pat<(and (srl GPR:$Src, (i32 8)), 0xFF00FF),
2540 (UXTB16 GPR:$Src, 1)>;
2542 def UXTAB : AI_exta_rrot<0b01101110, "uxtab",
2543 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
2544 def UXTAH : AI_exta_rrot<0b01101111, "uxtah",
2545 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
2548 // This isn't safe in general, the add is two 16-bit units, not a 32-bit add.
2549 def UXTAB16 : AI_exta_rrot_np<0b01101100, "uxtab16">;
2552 def SBFX : I<(outs GPR:$Rd),
2553 (ins GPR:$Rn, imm0_31:$lsb, imm1_32:$width),
2554 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
2555 "sbfx", "\t$Rd, $Rn, $lsb, $width", "", []>,
2556 Requires<[IsARM, HasV6T2]> {
2561 let Inst{27-21} = 0b0111101;
2562 let Inst{6-4} = 0b101;
2563 let Inst{20-16} = width;
2564 let Inst{15-12} = Rd;
2565 let Inst{11-7} = lsb;
2569 def UBFX : I<(outs GPR:$Rd),
2570 (ins GPR:$Rn, imm0_31:$lsb, imm1_32:$width),
2571 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
2572 "ubfx", "\t$Rd, $Rn, $lsb, $width", "", []>,
2573 Requires<[IsARM, HasV6T2]> {
2578 let Inst{27-21} = 0b0111111;
2579 let Inst{6-4} = 0b101;
2580 let Inst{20-16} = width;
2581 let Inst{15-12} = Rd;
2582 let Inst{11-7} = lsb;
2586 //===----------------------------------------------------------------------===//
2587 // Arithmetic Instructions.
2590 defm ADD : AsI1_bin_irs<0b0100, "add",
2591 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
2592 BinOpFrag<(add node:$LHS, node:$RHS)>, "ADD", 1>;
2593 defm SUB : AsI1_bin_irs<0b0010, "sub",
2594 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
2595 BinOpFrag<(sub node:$LHS, node:$RHS)>, "SUB">;
2597 // ADD and SUB with 's' bit set.
2598 defm ADDS : AI1_bin_s_irs<0b0100, "adds",
2599 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
2600 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
2601 defm SUBS : AI1_bin_s_irs<0b0010, "subs",
2602 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
2603 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
2605 defm ADC : AI1_adde_sube_irs<0b0101, "adc",
2606 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>,
2608 defm SBC : AI1_adde_sube_irs<0b0110, "sbc",
2609 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>,
2612 // ADC and SUBC with 's' bit set.
2613 let usesCustomInserter = 1 in {
2614 defm ADCS : AI1_adde_sube_s_irs<
2615 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
2616 defm SBCS : AI1_adde_sube_s_irs<
2617 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS) >>;
2620 def RSBri : AsI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
2621 IIC_iALUi, "rsb", "\t$Rd, $Rn, $imm",
2622 [(set GPR:$Rd, (sub so_imm:$imm, GPR:$Rn))]> {
2627 let Inst{15-12} = Rd;
2628 let Inst{19-16} = Rn;
2629 let Inst{11-0} = imm;
2632 // The reg/reg form is only defined for the disassembler; for codegen it is
2633 // equivalent to SUBrr.
2634 def RSBrr : AsI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
2635 IIC_iALUr, "rsb", "\t$Rd, $Rn, $Rm",
2636 [/* For disassembly only; pattern left blank */]> {
2640 let Inst{11-4} = 0b00000000;
2643 let Inst{15-12} = Rd;
2644 let Inst{19-16} = Rn;
2647 def RSBrsi : AsI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, so_reg_imm:$shift),
2648 DPSoRegImmFrm, IIC_iALUsr, "rsb", "\t$Rd, $Rn, $shift",
2649 [(set GPR:$Rd, (sub so_reg_imm:$shift, GPR:$Rn))]> {
2654 let Inst{19-16} = Rn;
2655 let Inst{15-12} = Rd;
2656 let Inst{11-5} = shift{11-5};
2658 let Inst{3-0} = shift{3-0};
2661 def RSBrsr : AsI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, so_reg_reg:$shift),
2662 DPSoRegRegFrm, IIC_iALUsr, "rsb", "\t$Rd, $Rn, $shift",
2663 [(set GPR:$Rd, (sub so_reg_reg:$shift, GPR:$Rn))]> {
2668 let Inst{19-16} = Rn;
2669 let Inst{15-12} = Rd;
2670 let Inst{11-8} = shift{11-8};
2672 let Inst{6-5} = shift{6-5};
2674 let Inst{3-0} = shift{3-0};
2677 // RSB with 's' bit set.
2678 // NOTE: CPSR def omitted because it will be handled by the custom inserter.
2679 let usesCustomInserter = 1 in {
2680 def RSBSri : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
2682 [(set GPR:$Rd, (subc so_imm:$imm, GPR:$Rn))]>;
2683 def RSBSrr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2685 [/* For disassembly only; pattern left blank */]>;
2686 def RSBSrsi : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_reg_imm:$shift),
2688 [(set GPR:$Rd, (subc so_reg_imm:$shift, GPR:$Rn))]>;
2689 def RSBSrsr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_reg_reg:$shift),
2691 [(set GPR:$Rd, (subc so_reg_reg:$shift, GPR:$Rn))]>;
2694 let Uses = [CPSR] in {
2695 def RSCri : AsI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
2696 DPFrm, IIC_iALUi, "rsc", "\t$Rd, $Rn, $imm",
2697 [(set GPR:$Rd, (sube_dead_carry so_imm:$imm, GPR:$Rn))]>,
2703 let Inst{15-12} = Rd;
2704 let Inst{19-16} = Rn;
2705 let Inst{11-0} = imm;
2707 // The reg/reg form is only defined for the disassembler; for codegen it is
2708 // equivalent to SUBrr.
2709 def RSCrr : AsI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2710 DPFrm, IIC_iALUr, "rsc", "\t$Rd, $Rn, $Rm",
2711 [/* For disassembly only; pattern left blank */]> {
2715 let Inst{11-4} = 0b00000000;
2718 let Inst{15-12} = Rd;
2719 let Inst{19-16} = Rn;
2721 def RSCrsi : AsI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, so_reg_imm:$shift),
2722 DPSoRegImmFrm, IIC_iALUsr, "rsc", "\t$Rd, $Rn, $shift",
2723 [(set GPR:$Rd, (sube_dead_carry so_reg_imm:$shift, GPR:$Rn))]>,
2729 let Inst{19-16} = Rn;
2730 let Inst{15-12} = Rd;
2731 let Inst{11-5} = shift{11-5};
2733 let Inst{3-0} = shift{3-0};
2735 def RSCrsr : AsI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, so_reg_reg:$shift),
2736 DPSoRegRegFrm, IIC_iALUsr, "rsc", "\t$Rd, $Rn, $shift",
2737 [(set GPR:$Rd, (sube_dead_carry so_reg_reg:$shift, GPR:$Rn))]>,
2743 let Inst{19-16} = Rn;
2744 let Inst{15-12} = Rd;
2745 let Inst{11-8} = shift{11-8};
2747 let Inst{6-5} = shift{6-5};
2749 let Inst{3-0} = shift{3-0};
2754 // NOTE: CPSR def omitted because it will be handled by the custom inserter.
2755 let usesCustomInserter = 1, Uses = [CPSR] in {
2756 def RSCSri : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
2758 [(set GPR:$Rd, (sube_dead_carry so_imm:$imm, GPR:$Rn))]>;
2759 def RSCSrsi : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_reg_imm:$shift),
2761 [(set GPR:$Rd, (sube_dead_carry so_reg_imm:$shift, GPR:$Rn))]>;
2762 def RSCSrsr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_reg_reg:$shift),
2764 [(set GPR:$Rd, (sube_dead_carry so_reg_reg:$shift, GPR:$Rn))]>;
2767 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
2768 // The assume-no-carry-in form uses the negation of the input since add/sub
2769 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
2770 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
2772 def : ARMPat<(add GPR:$src, so_imm_neg:$imm),
2773 (SUBri GPR:$src, so_imm_neg:$imm)>;
2774 def : ARMPat<(addc GPR:$src, so_imm_neg:$imm),
2775 (SUBSri GPR:$src, so_imm_neg:$imm)>;
2776 // The with-carry-in form matches bitwise not instead of the negation.
2777 // Effectively, the inverse interpretation of the carry flag already accounts
2778 // for part of the negation.
2779 def : ARMPat<(adde_dead_carry GPR:$src, so_imm_not:$imm),
2780 (SBCri GPR:$src, so_imm_not:$imm)>;
2781 def : ARMPat<(adde_live_carry GPR:$src, so_imm_not:$imm),
2782 (SBCSri GPR:$src, so_imm_not:$imm)>;
2784 // Note: These are implemented in C++ code, because they have to generate
2785 // ADD/SUBrs instructions, which use a complex pattern that a xform function
2787 // (mul X, 2^n+1) -> (add (X << n), X)
2788 // (mul X, 2^n-1) -> (rsb X, (X << n))
2790 // ARM Arithmetic Instruction
2791 // GPR:$dst = GPR:$a op GPR:$b
2792 class AAI<bits<8> op27_20, bits<8> op11_4, string opc,
2793 list<dag> pattern = [],
2794 dag iops = (ins GPR:$Rn, GPR:$Rm), string asm = "\t$Rd, $Rn, $Rm">
2795 : AI<(outs GPR:$Rd), iops, DPFrm, IIC_iALUr, opc, asm, pattern> {
2799 let Inst{27-20} = op27_20;
2800 let Inst{11-4} = op11_4;
2801 let Inst{19-16} = Rn;
2802 let Inst{15-12} = Rd;
2806 // Saturating add/subtract
2808 def QADD : AAI<0b00010000, 0b00000101, "qadd",
2809 [(set GPR:$Rd, (int_arm_qadd GPR:$Rm, GPR:$Rn))],
2810 (ins GPR:$Rm, GPR:$Rn), "\t$Rd, $Rm, $Rn">;
2811 def QSUB : AAI<0b00010010, 0b00000101, "qsub",
2812 [(set GPR:$Rd, (int_arm_qsub GPR:$Rm, GPR:$Rn))],
2813 (ins GPR:$Rm, GPR:$Rn), "\t$Rd, $Rm, $Rn">;
2814 def QDADD : AAI<0b00010100, 0b00000101, "qdadd", [], (ins GPR:$Rm, GPR:$Rn),
2816 def QDSUB : AAI<0b00010110, 0b00000101, "qdsub", [], (ins GPR:$Rm, GPR:$Rn),
2819 def QADD16 : AAI<0b01100010, 0b11110001, "qadd16">;
2820 def QADD8 : AAI<0b01100010, 0b11111001, "qadd8">;
2821 def QASX : AAI<0b01100010, 0b11110011, "qasx">;
2822 def QSAX : AAI<0b01100010, 0b11110101, "qsax">;
2823 def QSUB16 : AAI<0b01100010, 0b11110111, "qsub16">;
2824 def QSUB8 : AAI<0b01100010, 0b11111111, "qsub8">;
2825 def UQADD16 : AAI<0b01100110, 0b11110001, "uqadd16">;
2826 def UQADD8 : AAI<0b01100110, 0b11111001, "uqadd8">;
2827 def UQASX : AAI<0b01100110, 0b11110011, "uqasx">;
2828 def UQSAX : AAI<0b01100110, 0b11110101, "uqsax">;
2829 def UQSUB16 : AAI<0b01100110, 0b11110111, "uqsub16">;
2830 def UQSUB8 : AAI<0b01100110, 0b11111111, "uqsub8">;
2832 // Signed/Unsigned add/subtract
2834 def SASX : AAI<0b01100001, 0b11110011, "sasx">;
2835 def SADD16 : AAI<0b01100001, 0b11110001, "sadd16">;
2836 def SADD8 : AAI<0b01100001, 0b11111001, "sadd8">;
2837 def SSAX : AAI<0b01100001, 0b11110101, "ssax">;
2838 def SSUB16 : AAI<0b01100001, 0b11110111, "ssub16">;
2839 def SSUB8 : AAI<0b01100001, 0b11111111, "ssub8">;
2840 def UASX : AAI<0b01100101, 0b11110011, "uasx">;
2841 def UADD16 : AAI<0b01100101, 0b11110001, "uadd16">;
2842 def UADD8 : AAI<0b01100101, 0b11111001, "uadd8">;
2843 def USAX : AAI<0b01100101, 0b11110101, "usax">;
2844 def USUB16 : AAI<0b01100101, 0b11110111, "usub16">;
2845 def USUB8 : AAI<0b01100101, 0b11111111, "usub8">;
2847 // Signed/Unsigned halving add/subtract
2849 def SHASX : AAI<0b01100011, 0b11110011, "shasx">;
2850 def SHADD16 : AAI<0b01100011, 0b11110001, "shadd16">;
2851 def SHADD8 : AAI<0b01100011, 0b11111001, "shadd8">;
2852 def SHSAX : AAI<0b01100011, 0b11110101, "shsax">;
2853 def SHSUB16 : AAI<0b01100011, 0b11110111, "shsub16">;
2854 def SHSUB8 : AAI<0b01100011, 0b11111111, "shsub8">;
2855 def UHASX : AAI<0b01100111, 0b11110011, "uhasx">;
2856 def UHADD16 : AAI<0b01100111, 0b11110001, "uhadd16">;
2857 def UHADD8 : AAI<0b01100111, 0b11111001, "uhadd8">;
2858 def UHSAX : AAI<0b01100111, 0b11110101, "uhsax">;
2859 def UHSUB16 : AAI<0b01100111, 0b11110111, "uhsub16">;
2860 def UHSUB8 : AAI<0b01100111, 0b11111111, "uhsub8">;
2862 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
2864 def USAD8 : AI<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2865 MulFrm /* for convenience */, NoItinerary, "usad8",
2866 "\t$Rd, $Rn, $Rm", []>,
2867 Requires<[IsARM, HasV6]> {
2871 let Inst{27-20} = 0b01111000;
2872 let Inst{15-12} = 0b1111;
2873 let Inst{7-4} = 0b0001;
2874 let Inst{19-16} = Rd;
2875 let Inst{11-8} = Rm;
2878 def USADA8 : AI<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2879 MulFrm /* for convenience */, NoItinerary, "usada8",
2880 "\t$Rd, $Rn, $Rm, $Ra", []>,
2881 Requires<[IsARM, HasV6]> {
2886 let Inst{27-20} = 0b01111000;
2887 let Inst{7-4} = 0b0001;
2888 let Inst{19-16} = Rd;
2889 let Inst{15-12} = Ra;
2890 let Inst{11-8} = Rm;
2894 // Signed/Unsigned saturate -- for disassembly only
2896 def SSAT : AI<(outs GPR:$Rd), (ins imm1_32:$sat_imm, GPR:$Rn, shift_imm:$sh),
2897 SatFrm, NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2902 let Inst{27-21} = 0b0110101;
2903 let Inst{5-4} = 0b01;
2904 let Inst{20-16} = sat_imm;
2905 let Inst{15-12} = Rd;
2906 let Inst{11-7} = sh{4-0};
2907 let Inst{6} = sh{5};
2911 def SSAT16 : AI<(outs GPR:$Rd), (ins imm1_16:$sat_imm, GPR:$Rn), SatFrm,
2912 NoItinerary, "ssat16", "\t$Rd, $sat_imm, $Rn", []> {
2916 let Inst{27-20} = 0b01101010;
2917 let Inst{11-4} = 0b11110011;
2918 let Inst{15-12} = Rd;
2919 let Inst{19-16} = sat_imm;
2923 def USAT : AI<(outs GPR:$Rd), (ins imm0_31:$sat_imm, GPR:$Rn, shift_imm:$sh),
2924 SatFrm, NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2929 let Inst{27-21} = 0b0110111;
2930 let Inst{5-4} = 0b01;
2931 let Inst{15-12} = Rd;
2932 let Inst{11-7} = sh{4-0};
2933 let Inst{6} = sh{5};
2934 let Inst{20-16} = sat_imm;
2938 def USAT16 : AI<(outs GPR:$Rd), (ins imm0_15:$sat_imm, GPR:$a), SatFrm,
2939 NoItinerary, "usat16", "\t$Rd, $sat_imm, $a",
2940 [/* For disassembly only; pattern left blank */]> {
2944 let Inst{27-20} = 0b01101110;
2945 let Inst{11-4} = 0b11110011;
2946 let Inst{15-12} = Rd;
2947 let Inst{19-16} = sat_imm;
2951 def : ARMV6Pat<(int_arm_ssat GPR:$a, imm:$pos), (SSAT imm:$pos, GPR:$a, 0)>;
2952 def : ARMV6Pat<(int_arm_usat GPR:$a, imm:$pos), (USAT imm:$pos, GPR:$a, 0)>;
2954 //===----------------------------------------------------------------------===//
2955 // Bitwise Instructions.
2958 defm AND : AsI1_bin_irs<0b0000, "and",
2959 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
2960 BinOpFrag<(and node:$LHS, node:$RHS)>, "AND", 1>;
2961 defm ORR : AsI1_bin_irs<0b1100, "orr",
2962 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
2963 BinOpFrag<(or node:$LHS, node:$RHS)>, "ORR", 1>;
2964 defm EOR : AsI1_bin_irs<0b0001, "eor",
2965 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
2966 BinOpFrag<(xor node:$LHS, node:$RHS)>, "EOR", 1>;
2967 defm BIC : AsI1_bin_irs<0b1110, "bic",
2968 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
2969 BinOpFrag<(and node:$LHS, (not node:$RHS))>, "BIC">;
2971 // FIXME: bf_inv_mask_imm should be two operands, the lsb and the msb, just
2972 // like in the actual instruction encoding. The complexity of mapping the mask
2973 // to the lsb/msb pair should be handled by ISel, not encapsulated in the
2974 // instruction description.
2975 def BFC : I<(outs GPR:$Rd), (ins GPR:$src, bf_inv_mask_imm:$imm),
2976 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
2977 "bfc", "\t$Rd, $imm", "$src = $Rd",
2978 [(set GPR:$Rd, (and GPR:$src, bf_inv_mask_imm:$imm))]>,
2979 Requires<[IsARM, HasV6T2]> {
2982 let Inst{27-21} = 0b0111110;
2983 let Inst{6-0} = 0b0011111;
2984 let Inst{15-12} = Rd;
2985 let Inst{11-7} = imm{4-0}; // lsb
2986 let Inst{20-16} = imm{9-5}; // msb
2989 // A8.6.18 BFI - Bitfield insert (Encoding A1)
2990 def BFI : I<(outs GPR:$Rd), (ins GPR:$src, GPR:$Rn, bf_inv_mask_imm:$imm),
2991 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
2992 "bfi", "\t$Rd, $Rn, $imm", "$src = $Rd",
2993 [(set GPR:$Rd, (ARMbfi GPR:$src, GPR:$Rn,
2994 bf_inv_mask_imm:$imm))]>,
2995 Requires<[IsARM, HasV6T2]> {
2999 let Inst{27-21} = 0b0111110;
3000 let Inst{6-4} = 0b001; // Rn: Inst{3-0} != 15
3001 let Inst{15-12} = Rd;
3002 let Inst{11-7} = imm{4-0}; // lsb
3003 let Inst{20-16} = imm{9-5}; // width
3007 // GNU as only supports this form of bfi (w/ 4 arguments)
3008 let isAsmParserOnly = 1 in
3009 def BFI4p : I<(outs GPR:$Rd), (ins GPR:$src, GPR:$Rn,
3010 lsb_pos_imm:$lsb, width_imm:$width),
3011 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
3012 "bfi", "\t$Rd, $Rn, $lsb, $width", "$src = $Rd",
3013 []>, Requires<[IsARM, HasV6T2]> {
3018 let Inst{27-21} = 0b0111110;
3019 let Inst{6-4} = 0b001; // Rn: Inst{3-0} != 15
3020 let Inst{15-12} = Rd;
3021 let Inst{11-7} = lsb;
3022 let Inst{20-16} = width; // Custom encoder => lsb+width-1
3026 def MVNr : AsI1<0b1111, (outs GPR:$Rd), (ins GPR:$Rm), DPFrm, IIC_iMVNr,
3027 "mvn", "\t$Rd, $Rm",
3028 [(set GPR:$Rd, (not GPR:$Rm))]>, UnaryDP {
3032 let Inst{19-16} = 0b0000;
3033 let Inst{11-4} = 0b00000000;
3034 let Inst{15-12} = Rd;
3037 def MVNsi : AsI1<0b1111, (outs GPR:$Rd), (ins so_reg_imm:$shift),
3038 DPSoRegImmFrm, IIC_iMVNsr, "mvn", "\t$Rd, $shift",
3039 [(set GPR:$Rd, (not so_reg_imm:$shift))]>, UnaryDP {
3043 let Inst{19-16} = 0b0000;
3044 let Inst{15-12} = Rd;
3045 let Inst{11-5} = shift{11-5};
3047 let Inst{3-0} = shift{3-0};
3049 def MVNsr : AsI1<0b1111, (outs GPR:$Rd), (ins so_reg_reg:$shift),
3050 DPSoRegRegFrm, IIC_iMVNsr, "mvn", "\t$Rd, $shift",
3051 [(set GPR:$Rd, (not so_reg_reg:$shift))]>, UnaryDP {
3055 let Inst{19-16} = 0b0000;
3056 let Inst{15-12} = Rd;
3057 let Inst{11-8} = shift{11-8};
3059 let Inst{6-5} = shift{6-5};
3061 let Inst{3-0} = shift{3-0};
3063 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
3064 def MVNi : AsI1<0b1111, (outs GPR:$Rd), (ins so_imm:$imm), DPFrm,
3065 IIC_iMVNi, "mvn", "\t$Rd, $imm",
3066 [(set GPR:$Rd, so_imm_not:$imm)]>,UnaryDP {
3070 let Inst{19-16} = 0b0000;
3071 let Inst{15-12} = Rd;
3072 let Inst{11-0} = imm;
3075 def : ARMPat<(and GPR:$src, so_imm_not:$imm),
3076 (BICri GPR:$src, so_imm_not:$imm)>;
3078 //===----------------------------------------------------------------------===//
3079 // Multiply Instructions.
3081 class AsMul1I32<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
3082 string opc, string asm, list<dag> pattern>
3083 : AsMul1I<opcod, oops, iops, itin, opc, asm, pattern> {
3087 let Inst{19-16} = Rd;
3088 let Inst{11-8} = Rm;
3091 class AsMul1I64<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
3092 string opc, string asm, list<dag> pattern>
3093 : AsMul1I<opcod, oops, iops, itin, opc, asm, pattern> {
3098 let Inst{19-16} = RdHi;
3099 let Inst{15-12} = RdLo;
3100 let Inst{11-8} = Rm;
3104 // FIXME: The v5 pseudos are only necessary for the additional Constraint
3105 // property. Remove them when it's possible to add those properties
3106 // on an individual MachineInstr, not just an instuction description.
3107 let isCommutable = 1 in {
3108 def MUL : AsMul1I32<0b0000000, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3109 IIC_iMUL32, "mul", "\t$Rd, $Rn, $Rm",
3110 [(set GPR:$Rd, (mul GPR:$Rn, GPR:$Rm))]>,
3111 Requires<[IsARM, HasV6]> {
3112 let Inst{15-12} = 0b0000;
3115 let Constraints = "@earlyclobber $Rd" in
3116 def MULv5: ARMPseudoExpand<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm,
3117 pred:$p, cc_out:$s),
3119 [(set GPR:$Rd, (mul GPR:$Rn, GPR:$Rm))],
3120 (MUL GPR:$Rd, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
3121 Requires<[IsARM, NoV6]>;
3124 def MLA : AsMul1I32<0b0000001, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3125 IIC_iMAC32, "mla", "\t$Rd, $Rn, $Rm, $Ra",
3126 [(set GPR:$Rd, (add (mul GPR:$Rn, GPR:$Rm), GPR:$Ra))]>,
3127 Requires<[IsARM, HasV6]> {
3129 let Inst{15-12} = Ra;
3132 let Constraints = "@earlyclobber $Rd" in
3133 def MLAv5: ARMPseudoExpand<(outs GPR:$Rd),
3134 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra, pred:$p, cc_out:$s),
3136 [(set GPR:$Rd, (add (mul GPR:$Rn, GPR:$Rm), GPR:$Ra))],
3137 (MLA GPR:$Rd, GPR:$Rn, GPR:$Rm, GPR:$Ra, pred:$p, cc_out:$s)>,
3138 Requires<[IsARM, NoV6]>;
3140 def MLS : AMul1I<0b0000011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3141 IIC_iMAC32, "mls", "\t$Rd, $Rn, $Rm, $Ra",
3142 [(set GPR:$Rd, (sub GPR:$Ra, (mul GPR:$Rn, GPR:$Rm)))]>,
3143 Requires<[IsARM, HasV6T2]> {
3148 let Inst{19-16} = Rd;
3149 let Inst{15-12} = Ra;
3150 let Inst{11-8} = Rm;
3154 // Extra precision multiplies with low / high results
3155 let neverHasSideEffects = 1 in {
3156 let isCommutable = 1 in {
3157 def SMULL : AsMul1I64<0b0000110, (outs GPR:$RdLo, GPR:$RdHi),
3158 (ins GPR:$Rn, GPR:$Rm), IIC_iMUL64,
3159 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3160 Requires<[IsARM, HasV6]>;
3162 def UMULL : AsMul1I64<0b0000100, (outs GPR:$RdLo, GPR:$RdHi),
3163 (ins GPR:$Rn, GPR:$Rm), IIC_iMUL64,
3164 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3165 Requires<[IsARM, HasV6]>;
3167 let Constraints = "@earlyclobber $RdLo,@earlyclobber $RdHi" in {
3168 def SMULLv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3169 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
3171 (SMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
3172 Requires<[IsARM, NoV6]>;
3174 def UMULLv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3175 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
3177 (UMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
3178 Requires<[IsARM, NoV6]>;
3182 // Multiply + accumulate
3183 def SMLAL : AsMul1I64<0b0000111, (outs GPR:$RdLo, GPR:$RdHi),
3184 (ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
3185 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3186 Requires<[IsARM, HasV6]>;
3187 def UMLAL : AsMul1I64<0b0000101, (outs GPR:$RdLo, GPR:$RdHi),
3188 (ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
3189 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3190 Requires<[IsARM, HasV6]>;
3192 def UMAAL : AMul1I <0b0000010, (outs GPR:$RdLo, GPR:$RdHi),
3193 (ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
3194 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3195 Requires<[IsARM, HasV6]> {
3200 let Inst{19-16} = RdLo;
3201 let Inst{15-12} = RdHi;
3202 let Inst{11-8} = Rm;
3206 let Constraints = "@earlyclobber $RdLo,@earlyclobber $RdHi" in {
3207 def SMLALv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3208 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
3210 (SMLAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
3211 Requires<[IsARM, NoV6]>;
3212 def UMLALv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3213 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
3215 (UMLAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
3216 Requires<[IsARM, NoV6]>;
3217 def UMAALv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3218 (ins GPR:$Rn, GPR:$Rm, pred:$p),
3220 (UMAAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p)>,
3221 Requires<[IsARM, NoV6]>;
3224 } // neverHasSideEffects
3226 // Most significant word multiply
3227 def SMMUL : AMul2I <0b0111010, 0b0001, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3228 IIC_iMUL32, "smmul", "\t$Rd, $Rn, $Rm",
3229 [(set GPR:$Rd, (mulhs GPR:$Rn, GPR:$Rm))]>,
3230 Requires<[IsARM, HasV6]> {
3231 let Inst{15-12} = 0b1111;
3234 def SMMULR : AMul2I <0b0111010, 0b0011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3235 IIC_iMUL32, "smmulr", "\t$Rd, $Rn, $Rm",
3236 [/* For disassembly only; pattern left blank */]>,
3237 Requires<[IsARM, HasV6]> {
3238 let Inst{15-12} = 0b1111;
3241 def SMMLA : AMul2Ia <0b0111010, 0b0001, (outs GPR:$Rd),
3242 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3243 IIC_iMAC32, "smmla", "\t$Rd, $Rn, $Rm, $Ra",
3244 [(set GPR:$Rd, (add (mulhs GPR:$Rn, GPR:$Rm), GPR:$Ra))]>,
3245 Requires<[IsARM, HasV6]>;
3247 def SMMLAR : AMul2Ia <0b0111010, 0b0011, (outs GPR:$Rd),
3248 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3249 IIC_iMAC32, "smmlar", "\t$Rd, $Rn, $Rm, $Ra",
3250 [/* For disassembly only; pattern left blank */]>,
3251 Requires<[IsARM, HasV6]>;
3253 def SMMLS : AMul2Ia <0b0111010, 0b1101, (outs GPR:$Rd),
3254 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3255 IIC_iMAC32, "smmls", "\t$Rd, $Rn, $Rm, $Ra",
3256 [(set GPR:$Rd, (sub GPR:$Ra, (mulhs GPR:$Rn, GPR:$Rm)))]>,
3257 Requires<[IsARM, HasV6]>;
3259 def SMMLSR : AMul2Ia <0b0111010, 0b1111, (outs GPR:$Rd),
3260 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3261 IIC_iMAC32, "smmlsr", "\t$Rd, $Rn, $Rm, $Ra",
3262 [/* For disassembly only; pattern left blank */]>,
3263 Requires<[IsARM, HasV6]>;
3265 multiclass AI_smul<string opc, PatFrag opnode> {
3266 def BB : AMulxyI<0b0001011, 0b00, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3267 IIC_iMUL16, !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
3268 [(set GPR:$Rd, (opnode (sext_inreg GPR:$Rn, i16),
3269 (sext_inreg GPR:$Rm, i16)))]>,
3270 Requires<[IsARM, HasV5TE]>;
3272 def BT : AMulxyI<0b0001011, 0b10, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3273 IIC_iMUL16, !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
3274 [(set GPR:$Rd, (opnode (sext_inreg GPR:$Rn, i16),
3275 (sra GPR:$Rm, (i32 16))))]>,
3276 Requires<[IsARM, HasV5TE]>;
3278 def TB : AMulxyI<0b0001011, 0b01, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3279 IIC_iMUL16, !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
3280 [(set GPR:$Rd, (opnode (sra GPR:$Rn, (i32 16)),
3281 (sext_inreg GPR:$Rm, i16)))]>,
3282 Requires<[IsARM, HasV5TE]>;
3284 def TT : AMulxyI<0b0001011, 0b11, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3285 IIC_iMUL16, !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
3286 [(set GPR:$Rd, (opnode (sra GPR:$Rn, (i32 16)),
3287 (sra GPR:$Rm, (i32 16))))]>,
3288 Requires<[IsARM, HasV5TE]>;
3290 def WB : AMulxyI<0b0001001, 0b01, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3291 IIC_iMUL16, !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
3292 [(set GPR:$Rd, (sra (opnode GPR:$Rn,
3293 (sext_inreg GPR:$Rm, i16)), (i32 16)))]>,
3294 Requires<[IsARM, HasV5TE]>;
3296 def WT : AMulxyI<0b0001001, 0b11, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3297 IIC_iMUL16, !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
3298 [(set GPR:$Rd, (sra (opnode GPR:$Rn,
3299 (sra GPR:$Rm, (i32 16))), (i32 16)))]>,
3300 Requires<[IsARM, HasV5TE]>;
3304 multiclass AI_smla<string opc, PatFrag opnode> {
3305 def BB : AMulxyIa<0b0001000, 0b00, (outs GPR:$Rd),
3306 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3307 IIC_iMAC16, !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
3308 [(set GPR:$Rd, (add GPR:$Ra,
3309 (opnode (sext_inreg GPR:$Rn, i16),
3310 (sext_inreg GPR:$Rm, i16))))]>,
3311 Requires<[IsARM, HasV5TE]>;
3313 def BT : AMulxyIa<0b0001000, 0b10, (outs GPR:$Rd),
3314 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3315 IIC_iMAC16, !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
3316 [(set GPR:$Rd, (add GPR:$Ra, (opnode (sext_inreg GPR:$Rn, i16),
3317 (sra GPR:$Rm, (i32 16)))))]>,
3318 Requires<[IsARM, HasV5TE]>;
3320 def TB : AMulxyIa<0b0001000, 0b01, (outs GPR:$Rd),
3321 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3322 IIC_iMAC16, !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
3323 [(set GPR:$Rd, (add GPR:$Ra, (opnode (sra GPR:$Rn, (i32 16)),
3324 (sext_inreg GPR:$Rm, i16))))]>,
3325 Requires<[IsARM, HasV5TE]>;
3327 def TT : AMulxyIa<0b0001000, 0b11, (outs GPR:$Rd),
3328 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3329 IIC_iMAC16, !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
3330 [(set GPR:$Rd, (add GPR:$Ra, (opnode (sra GPR:$Rn, (i32 16)),
3331 (sra GPR:$Rm, (i32 16)))))]>,
3332 Requires<[IsARM, HasV5TE]>;
3334 def WB : AMulxyIa<0b0001001, 0b00, (outs GPR:$Rd),
3335 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3336 IIC_iMAC16, !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
3337 [(set GPR:$Rd, (add GPR:$Ra, (sra (opnode GPR:$Rn,
3338 (sext_inreg GPR:$Rm, i16)), (i32 16))))]>,
3339 Requires<[IsARM, HasV5TE]>;
3341 def WT : AMulxyIa<0b0001001, 0b10, (outs GPR:$Rd),
3342 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3343 IIC_iMAC16, !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
3344 [(set GPR:$Rd, (add GPR:$Ra, (sra (opnode GPR:$Rn,
3345 (sra GPR:$Rm, (i32 16))), (i32 16))))]>,
3346 Requires<[IsARM, HasV5TE]>;
3349 defm SMUL : AI_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
3350 defm SMLA : AI_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
3352 // Halfword multiply accumulate long: SMLAL<x><y> -- for disassembly only
3353 def SMLALBB : AMulxyI64<0b0001010, 0b00, (outs GPR:$RdLo, GPR:$RdHi),
3354 (ins GPR:$Rn, GPR:$Rm),
3355 IIC_iMAC64, "smlalbb", "\t$RdLo, $RdHi, $Rn, $Rm",
3356 [/* For disassembly only; pattern left blank */]>,
3357 Requires<[IsARM, HasV5TE]>;
3359 def SMLALBT : AMulxyI64<0b0001010, 0b10, (outs GPR:$RdLo, GPR:$RdHi),
3360 (ins GPR:$Rn, GPR:$Rm),
3361 IIC_iMAC64, "smlalbt", "\t$RdLo, $RdHi, $Rn, $Rm",
3362 [/* For disassembly only; pattern left blank */]>,
3363 Requires<[IsARM, HasV5TE]>;
3365 def SMLALTB : AMulxyI64<0b0001010, 0b01, (outs GPR:$RdLo, GPR:$RdHi),
3366 (ins GPR:$Rn, GPR:$Rm),
3367 IIC_iMAC64, "smlaltb", "\t$RdLo, $RdHi, $Rn, $Rm",
3368 [/* For disassembly only; pattern left blank */]>,
3369 Requires<[IsARM, HasV5TE]>;
3371 def SMLALTT : AMulxyI64<0b0001010, 0b11, (outs GPR:$RdLo, GPR:$RdHi),
3372 (ins GPR:$Rn, GPR:$Rm),
3373 IIC_iMAC64, "smlaltt", "\t$RdLo, $RdHi, $Rn, $Rm",
3374 [/* For disassembly only; pattern left blank */]>,
3375 Requires<[IsARM, HasV5TE]>;
3377 // Helper class for AI_smld -- for disassembly only
3378 class AMulDualIbase<bit long, bit sub, bit swap, dag oops, dag iops,
3379 InstrItinClass itin, string opc, string asm>
3380 : AI<oops, iops, MulFrm, itin, opc, asm, []>, Requires<[IsARM, HasV6]> {
3383 let Inst{27-23} = 0b01110;
3384 let Inst{22} = long;
3385 let Inst{21-20} = 0b00;
3386 let Inst{11-8} = Rm;
3393 class AMulDualI<bit long, bit sub, bit swap, dag oops, dag iops,
3394 InstrItinClass itin, string opc, string asm>
3395 : AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
3397 let Inst{15-12} = 0b1111;
3398 let Inst{19-16} = Rd;
3400 class AMulDualIa<bit long, bit sub, bit swap, dag oops, dag iops,
3401 InstrItinClass itin, string opc, string asm>
3402 : AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
3405 let Inst{19-16} = Rd;
3406 let Inst{15-12} = Ra;
3408 class AMulDualI64<bit long, bit sub, bit swap, dag oops, dag iops,
3409 InstrItinClass itin, string opc, string asm>
3410 : AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
3413 let Inst{19-16} = RdHi;
3414 let Inst{15-12} = RdLo;
3417 multiclass AI_smld<bit sub, string opc> {
3419 def D : AMulDualIa<0, sub, 0, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3420 NoItinerary, !strconcat(opc, "d"), "\t$Rd, $Rn, $Rm, $Ra">;
3422 def DX: AMulDualIa<0, sub, 1, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3423 NoItinerary, !strconcat(opc, "dx"), "\t$Rd, $Rn, $Rm, $Ra">;
3425 def LD: AMulDualI64<1, sub, 0, (outs GPR:$RdLo,GPR:$RdHi),
3426 (ins GPR:$Rn, GPR:$Rm), NoItinerary,
3427 !strconcat(opc, "ld"), "\t$RdLo, $RdHi, $Rn, $Rm">;
3429 def LDX : AMulDualI64<1, sub, 1, (outs GPR:$RdLo,GPR:$RdHi),
3430 (ins GPR:$Rn, GPR:$Rm), NoItinerary,
3431 !strconcat(opc, "ldx"),"\t$RdLo, $RdHi, $Rn, $Rm">;
3435 defm SMLA : AI_smld<0, "smla">;
3436 defm SMLS : AI_smld<1, "smls">;
3438 multiclass AI_sdml<bit sub, string opc> {
3440 def D : AMulDualI<0, sub, 0, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3441 NoItinerary, !strconcat(opc, "d"), "\t$Rd, $Rn, $Rm">;
3442 def DX : AMulDualI<0, sub, 1, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3443 NoItinerary, !strconcat(opc, "dx"), "\t$Rd, $Rn, $Rm">;
3446 defm SMUA : AI_sdml<0, "smua">;
3447 defm SMUS : AI_sdml<1, "smus">;
3449 //===----------------------------------------------------------------------===//
3450 // Misc. Arithmetic Instructions.
3453 def CLZ : AMiscA1I<0b000010110, 0b0001, (outs GPR:$Rd), (ins GPR:$Rm),
3454 IIC_iUNAr, "clz", "\t$Rd, $Rm",
3455 [(set GPR:$Rd, (ctlz GPR:$Rm))]>, Requires<[IsARM, HasV5T]>;
3457 def RBIT : AMiscA1I<0b01101111, 0b0011, (outs GPR:$Rd), (ins GPR:$Rm),
3458 IIC_iUNAr, "rbit", "\t$Rd, $Rm",
3459 [(set GPR:$Rd, (ARMrbit GPR:$Rm))]>,
3460 Requires<[IsARM, HasV6T2]>;
3462 def REV : AMiscA1I<0b01101011, 0b0011, (outs GPR:$Rd), (ins GPR:$Rm),
3463 IIC_iUNAr, "rev", "\t$Rd, $Rm",
3464 [(set GPR:$Rd, (bswap GPR:$Rm))]>, Requires<[IsARM, HasV6]>;
3466 let AddedComplexity = 5 in
3467 def REV16 : AMiscA1I<0b01101011, 0b1011, (outs GPR:$Rd), (ins GPR:$Rm),
3468 IIC_iUNAr, "rev16", "\t$Rd, $Rm",
3469 [(set GPR:$Rd, (rotr (bswap GPR:$Rm), (i32 16)))]>,
3470 Requires<[IsARM, HasV6]>;
3472 let AddedComplexity = 5 in
3473 def REVSH : AMiscA1I<0b01101111, 0b1011, (outs GPR:$Rd), (ins GPR:$Rm),
3474 IIC_iUNAr, "revsh", "\t$Rd, $Rm",
3475 [(set GPR:$Rd, (sra (bswap GPR:$Rm), (i32 16)))]>,
3476 Requires<[IsARM, HasV6]>;
3478 def : ARMV6Pat<(or (sra (shl GPR:$Rm, (i32 24)), (i32 16)),
3479 (and (srl GPR:$Rm, (i32 8)), 0xFF)),
3482 def PKHBT : APKHI<0b01101000, 0, (outs GPR:$Rd),
3483 (ins GPR:$Rn, GPR:$Rm, pkh_lsl_amt:$sh),
3484 IIC_iALUsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
3485 [(set GPR:$Rd, (or (and GPR:$Rn, 0xFFFF),
3486 (and (shl GPR:$Rm, pkh_lsl_amt:$sh),
3488 Requires<[IsARM, HasV6]>;
3490 // Alternate cases for PKHBT where identities eliminate some nodes.
3491 def : ARMV6Pat<(or (and GPR:$Rn, 0xFFFF), (and GPR:$Rm, 0xFFFF0000)),
3492 (PKHBT GPR:$Rn, GPR:$Rm, 0)>;
3493 def : ARMV6Pat<(or (and GPR:$Rn, 0xFFFF), (shl GPR:$Rm, imm16_31:$sh)),
3494 (PKHBT GPR:$Rn, GPR:$Rm, imm16_31:$sh)>;
3496 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
3497 // will match the pattern below.
3498 def PKHTB : APKHI<0b01101000, 1, (outs GPR:$Rd),
3499 (ins GPR:$Rn, GPR:$Rm, pkh_asr_amt:$sh),
3500 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
3501 [(set GPR:$Rd, (or (and GPR:$Rn, 0xFFFF0000),
3502 (and (sra GPR:$Rm, pkh_asr_amt:$sh),
3504 Requires<[IsARM, HasV6]>;
3506 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
3507 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
3508 def : ARMV6Pat<(or (and GPR:$src1, 0xFFFF0000), (srl GPR:$src2, imm16_31:$sh)),
3509 (PKHTB GPR:$src1, GPR:$src2, imm16_31:$sh)>;
3510 def : ARMV6Pat<(or (and GPR:$src1, 0xFFFF0000),
3511 (and (srl GPR:$src2, imm1_15:$sh), 0xFFFF)),
3512 (PKHTB GPR:$src1, GPR:$src2, imm1_15:$sh)>;
3514 //===----------------------------------------------------------------------===//
3515 // Comparison Instructions...
3518 defm CMP : AI1_cmp_irs<0b1010, "cmp",
3519 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsr,
3520 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
3522 // ARMcmpZ can re-use the above instruction definitions.
3523 def : ARMPat<(ARMcmpZ GPR:$src, so_imm:$imm),
3524 (CMPri GPR:$src, so_imm:$imm)>;
3525 def : ARMPat<(ARMcmpZ GPR:$src, GPR:$rhs),
3526 (CMPrr GPR:$src, GPR:$rhs)>;
3527 def : ARMPat<(ARMcmpZ GPR:$src, so_reg_imm:$rhs),
3528 (CMPrsi GPR:$src, so_reg_imm:$rhs)>;
3529 def : ARMPat<(ARMcmpZ GPR:$src, so_reg_reg:$rhs),
3530 (CMPrsr GPR:$src, so_reg_reg:$rhs)>;
3532 // FIXME: We have to be careful when using the CMN instruction and comparison
3533 // with 0. One would expect these two pieces of code should give identical
3549 // However, the CMN gives the *opposite* result when r1 is 0. This is because
3550 // the carry flag is set in the CMP case but not in the CMN case. In short, the
3551 // CMP instruction doesn't perform a truncate of the (logical) NOT of 0 plus the
3552 // value of r0 and the carry bit (because the "carry bit" parameter to
3553 // AddWithCarry is defined as 1 in this case, the carry flag will always be set
3554 // when r0 >= 0). The CMN instruction doesn't perform a NOT of 0 so there is
3555 // never a "carry" when this AddWithCarry is performed (because the "carry bit"
3556 // parameter to AddWithCarry is defined as 0).
3558 // When x is 0 and unsigned:
3562 // ~x + 1 = 0x1 0000 0000
3563 // (-x = 0) != (0x1 0000 0000 = ~x + 1)
3565 // Therefore, we should disable CMN when comparing against zero, until we can
3566 // limit when the CMN instruction is used (when we know that the RHS is not 0 or
3567 // when it's a comparison which doesn't look at the 'carry' flag).
3569 // (See the ARM docs for the "AddWithCarry" pseudo-code.)
3571 // This is related to <rdar://problem/7569620>.
3573 //defm CMN : AI1_cmp_irs<0b1011, "cmn",
3574 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
3576 // Note that TST/TEQ don't set all the same flags that CMP does!
3577 defm TST : AI1_cmp_irs<0b1000, "tst",
3578 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsr,
3579 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>, 1>;
3580 defm TEQ : AI1_cmp_irs<0b1001, "teq",
3581 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsr,
3582 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>, 1>;
3584 defm CMNz : AI1_cmp_irs<0b1011, "cmn",
3585 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsr,
3586 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
3588 //def : ARMPat<(ARMcmp GPR:$src, so_imm_neg:$imm),
3589 // (CMNri GPR:$src, so_imm_neg:$imm)>;
3591 def : ARMPat<(ARMcmpZ GPR:$src, so_imm_neg:$imm),
3592 (CMNzri GPR:$src, so_imm_neg:$imm)>;
3594 // Pseudo i64 compares for some floating point compares.
3595 let usesCustomInserter = 1, isBranch = 1, isTerminator = 1,
3597 def BCCi64 : PseudoInst<(outs),
3598 (ins i32imm:$cc, GPR:$lhs1, GPR:$lhs2, GPR:$rhs1, GPR:$rhs2, brtarget:$dst),
3600 [(ARMBcci64 imm:$cc, GPR:$lhs1, GPR:$lhs2, GPR:$rhs1, GPR:$rhs2, bb:$dst)]>;
3602 def BCCZi64 : PseudoInst<(outs),
3603 (ins i32imm:$cc, GPR:$lhs1, GPR:$lhs2, brtarget:$dst), IIC_Br,
3604 [(ARMBcci64 imm:$cc, GPR:$lhs1, GPR:$lhs2, 0, 0, bb:$dst)]>;
3605 } // usesCustomInserter
3608 // Conditional moves
3609 // FIXME: should be able to write a pattern for ARMcmov, but can't use
3610 // a two-value operand where a dag node expects two operands. :(
3611 let neverHasSideEffects = 1 in {
3612 def MOVCCr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$false, GPR:$Rm, pred:$p),
3614 [/*(set GPR:$Rd, (ARMcmov GPR:$false, GPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
3615 RegConstraint<"$false = $Rd">;
3616 def MOVCCsi : ARMPseudoInst<(outs GPR:$Rd),
3617 (ins GPR:$false, so_reg_imm:$shift, pred:$p),
3619 [/*(set GPR:$Rd, (ARMcmov GPR:$false, so_reg_imm:$shift,
3620 imm:$cc, CCR:$ccr))*/]>,
3621 RegConstraint<"$false = $Rd">;
3622 def MOVCCsr : ARMPseudoInst<(outs GPR:$Rd),
3623 (ins GPR:$false, so_reg_reg:$shift, pred:$p),
3625 [/*(set GPR:$Rd, (ARMcmov GPR:$false, so_reg_reg:$shift,
3626 imm:$cc, CCR:$ccr))*/]>,
3627 RegConstraint<"$false = $Rd">;
3630 let isMoveImm = 1 in
3631 def MOVCCi16 : ARMPseudoInst<(outs GPR:$Rd),
3632 (ins GPR:$false, imm0_65535_expr:$imm, pred:$p),
3635 RegConstraint<"$false = $Rd">, Requires<[IsARM, HasV6T2]>;
3637 let isMoveImm = 1 in
3638 def MOVCCi : ARMPseudoInst<(outs GPR:$Rd),
3639 (ins GPR:$false, so_imm:$imm, pred:$p),
3641 [/*(set GPR:$Rd, (ARMcmov GPR:$false, so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
3642 RegConstraint<"$false = $Rd">;
3644 // Two instruction predicate mov immediate.
3645 let isMoveImm = 1 in
3646 def MOVCCi32imm : ARMPseudoInst<(outs GPR:$Rd),
3647 (ins GPR:$false, i32imm:$src, pred:$p),
3648 8, IIC_iCMOVix2, []>, RegConstraint<"$false = $Rd">;
3650 let isMoveImm = 1 in
3651 def MVNCCi : ARMPseudoInst<(outs GPR:$Rd),
3652 (ins GPR:$false, so_imm:$imm, pred:$p),
3654 [/*(set GPR:$Rd, (ARMcmov GPR:$false, so_imm_not:$imm, imm:$cc, CCR:$ccr))*/]>,
3655 RegConstraint<"$false = $Rd">;
3656 } // neverHasSideEffects
3658 //===----------------------------------------------------------------------===//
3659 // Atomic operations intrinsics
3662 def MemBarrierOptOperand : AsmOperandClass {
3663 let Name = "MemBarrierOpt";
3664 let ParserMethod = "parseMemBarrierOptOperand";
3666 def memb_opt : Operand<i32> {
3667 let PrintMethod = "printMemBOption";
3668 let ParserMatchClass = MemBarrierOptOperand;
3671 // memory barriers protect the atomic sequences
3672 let hasSideEffects = 1 in {
3673 def DMB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
3674 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
3675 Requires<[IsARM, HasDB]> {
3677 let Inst{31-4} = 0xf57ff05;
3678 let Inst{3-0} = opt;
3682 def DSB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
3683 "dsb", "\t$opt", []>,
3684 Requires<[IsARM, HasDB]> {
3686 let Inst{31-4} = 0xf57ff04;
3687 let Inst{3-0} = opt;
3690 // ISB has only full system option
3691 def ISB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
3692 "isb", "\t$opt", []>,
3693 Requires<[IsARM, HasDB]> {
3695 let Inst{31-4} = 0xf57ff06;
3696 let Inst{3-0} = opt;
3699 let usesCustomInserter = 1 in {
3700 let Uses = [CPSR] in {
3701 def ATOMIC_LOAD_ADD_I8 : PseudoInst<
3702 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3703 [(set GPR:$dst, (atomic_load_add_8 GPR:$ptr, GPR:$incr))]>;
3704 def ATOMIC_LOAD_SUB_I8 : PseudoInst<
3705 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3706 [(set GPR:$dst, (atomic_load_sub_8 GPR:$ptr, GPR:$incr))]>;
3707 def ATOMIC_LOAD_AND_I8 : PseudoInst<
3708 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3709 [(set GPR:$dst, (atomic_load_and_8 GPR:$ptr, GPR:$incr))]>;
3710 def ATOMIC_LOAD_OR_I8 : PseudoInst<
3711 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3712 [(set GPR:$dst, (atomic_load_or_8 GPR:$ptr, GPR:$incr))]>;
3713 def ATOMIC_LOAD_XOR_I8 : PseudoInst<
3714 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3715 [(set GPR:$dst, (atomic_load_xor_8 GPR:$ptr, GPR:$incr))]>;
3716 def ATOMIC_LOAD_NAND_I8 : PseudoInst<
3717 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3718 [(set GPR:$dst, (atomic_load_nand_8 GPR:$ptr, GPR:$incr))]>;
3719 def ATOMIC_LOAD_MIN_I8 : PseudoInst<
3720 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3721 [(set GPR:$dst, (atomic_load_min_8 GPR:$ptr, GPR:$val))]>;
3722 def ATOMIC_LOAD_MAX_I8 : PseudoInst<
3723 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3724 [(set GPR:$dst, (atomic_load_max_8 GPR:$ptr, GPR:$val))]>;
3725 def ATOMIC_LOAD_UMIN_I8 : PseudoInst<
3726 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3727 [(set GPR:$dst, (atomic_load_min_8 GPR:$ptr, GPR:$val))]>;
3728 def ATOMIC_LOAD_UMAX_I8 : PseudoInst<
3729 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3730 [(set GPR:$dst, (atomic_load_max_8 GPR:$ptr, GPR:$val))]>;
3731 def ATOMIC_LOAD_ADD_I16 : PseudoInst<
3732 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3733 [(set GPR:$dst, (atomic_load_add_16 GPR:$ptr, GPR:$incr))]>;
3734 def ATOMIC_LOAD_SUB_I16 : PseudoInst<
3735 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3736 [(set GPR:$dst, (atomic_load_sub_16 GPR:$ptr, GPR:$incr))]>;
3737 def ATOMIC_LOAD_AND_I16 : PseudoInst<
3738 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3739 [(set GPR:$dst, (atomic_load_and_16 GPR:$ptr, GPR:$incr))]>;
3740 def ATOMIC_LOAD_OR_I16 : PseudoInst<
3741 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3742 [(set GPR:$dst, (atomic_load_or_16 GPR:$ptr, GPR:$incr))]>;
3743 def ATOMIC_LOAD_XOR_I16 : PseudoInst<
3744 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3745 [(set GPR:$dst, (atomic_load_xor_16 GPR:$ptr, GPR:$incr))]>;
3746 def ATOMIC_LOAD_NAND_I16 : PseudoInst<
3747 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3748 [(set GPR:$dst, (atomic_load_nand_16 GPR:$ptr, GPR:$incr))]>;
3749 def ATOMIC_LOAD_MIN_I16 : PseudoInst<
3750 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3751 [(set GPR:$dst, (atomic_load_min_16 GPR:$ptr, GPR:$val))]>;
3752 def ATOMIC_LOAD_MAX_I16 : PseudoInst<
3753 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3754 [(set GPR:$dst, (atomic_load_max_16 GPR:$ptr, GPR:$val))]>;
3755 def ATOMIC_LOAD_UMIN_I16 : PseudoInst<
3756 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3757 [(set GPR:$dst, (atomic_load_min_16 GPR:$ptr, GPR:$val))]>;
3758 def ATOMIC_LOAD_UMAX_I16 : PseudoInst<
3759 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3760 [(set GPR:$dst, (atomic_load_max_16 GPR:$ptr, GPR:$val))]>;
3761 def ATOMIC_LOAD_ADD_I32 : PseudoInst<
3762 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3763 [(set GPR:$dst, (atomic_load_add_32 GPR:$ptr, GPR:$incr))]>;
3764 def ATOMIC_LOAD_SUB_I32 : PseudoInst<
3765 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3766 [(set GPR:$dst, (atomic_load_sub_32 GPR:$ptr, GPR:$incr))]>;
3767 def ATOMIC_LOAD_AND_I32 : PseudoInst<
3768 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3769 [(set GPR:$dst, (atomic_load_and_32 GPR:$ptr, GPR:$incr))]>;
3770 def ATOMIC_LOAD_OR_I32 : PseudoInst<
3771 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3772 [(set GPR:$dst, (atomic_load_or_32 GPR:$ptr, GPR:$incr))]>;
3773 def ATOMIC_LOAD_XOR_I32 : PseudoInst<
3774 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3775 [(set GPR:$dst, (atomic_load_xor_32 GPR:$ptr, GPR:$incr))]>;
3776 def ATOMIC_LOAD_NAND_I32 : PseudoInst<
3777 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3778 [(set GPR:$dst, (atomic_load_nand_32 GPR:$ptr, GPR:$incr))]>;
3779 def ATOMIC_LOAD_MIN_I32 : PseudoInst<
3780 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3781 [(set GPR:$dst, (atomic_load_min_32 GPR:$ptr, GPR:$val))]>;
3782 def ATOMIC_LOAD_MAX_I32 : PseudoInst<
3783 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3784 [(set GPR:$dst, (atomic_load_max_32 GPR:$ptr, GPR:$val))]>;
3785 def ATOMIC_LOAD_UMIN_I32 : PseudoInst<
3786 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3787 [(set GPR:$dst, (atomic_load_min_32 GPR:$ptr, GPR:$val))]>;
3788 def ATOMIC_LOAD_UMAX_I32 : PseudoInst<
3789 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3790 [(set GPR:$dst, (atomic_load_max_32 GPR:$ptr, GPR:$val))]>;
3792 def ATOMIC_SWAP_I8 : PseudoInst<
3793 (outs GPR:$dst), (ins GPR:$ptr, GPR:$new), NoItinerary,
3794 [(set GPR:$dst, (atomic_swap_8 GPR:$ptr, GPR:$new))]>;
3795 def ATOMIC_SWAP_I16 : PseudoInst<
3796 (outs GPR:$dst), (ins GPR:$ptr, GPR:$new), NoItinerary,
3797 [(set GPR:$dst, (atomic_swap_16 GPR:$ptr, GPR:$new))]>;
3798 def ATOMIC_SWAP_I32 : PseudoInst<
3799 (outs GPR:$dst), (ins GPR:$ptr, GPR:$new), NoItinerary,
3800 [(set GPR:$dst, (atomic_swap_32 GPR:$ptr, GPR:$new))]>;
3802 def ATOMIC_CMP_SWAP_I8 : PseudoInst<
3803 (outs GPR:$dst), (ins GPR:$ptr, GPR:$old, GPR:$new), NoItinerary,
3804 [(set GPR:$dst, (atomic_cmp_swap_8 GPR:$ptr, GPR:$old, GPR:$new))]>;
3805 def ATOMIC_CMP_SWAP_I16 : PseudoInst<
3806 (outs GPR:$dst), (ins GPR:$ptr, GPR:$old, GPR:$new), NoItinerary,
3807 [(set GPR:$dst, (atomic_cmp_swap_16 GPR:$ptr, GPR:$old, GPR:$new))]>;
3808 def ATOMIC_CMP_SWAP_I32 : PseudoInst<
3809 (outs GPR:$dst), (ins GPR:$ptr, GPR:$old, GPR:$new), NoItinerary,
3810 [(set GPR:$dst, (atomic_cmp_swap_32 GPR:$ptr, GPR:$old, GPR:$new))]>;
3814 let mayLoad = 1 in {
3815 def LDREXB : AIldrex<0b10, (outs GPR:$Rt), (ins addr_offset_none:$addr),
3817 "ldrexb", "\t$Rt, $addr", []>;
3818 def LDREXH : AIldrex<0b11, (outs GPR:$Rt), (ins addr_offset_none:$addr),
3819 NoItinerary, "ldrexh", "\t$Rt, $addr", []>;
3820 def LDREX : AIldrex<0b00, (outs GPR:$Rt), (ins addr_offset_none:$addr),
3821 NoItinerary, "ldrex", "\t$Rt, $addr", []>;
3822 let hasExtraDefRegAllocReq = 1 in
3823 def LDREXD: AIldrex<0b01, (outs GPR:$Rt, GPR:$Rt2),(ins addr_offset_none:$addr),
3824 NoItinerary, "ldrexd", "\t$Rt, $Rt2, $addr", []>;
3827 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
3828 def STREXB: AIstrex<0b10, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
3829 NoItinerary, "strexb", "\t$Rd, $Rt, $addr", []>;
3830 def STREXH: AIstrex<0b11, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
3831 NoItinerary, "strexh", "\t$Rd, $Rt, $addr", []>;
3832 def STREX : AIstrex<0b00, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
3833 NoItinerary, "strex", "\t$Rd, $Rt, $addr", []>;
3836 let hasExtraSrcRegAllocReq = 1, Constraints = "@earlyclobber $Rd" in
3837 def STREXD : AIstrex<0b01, (outs GPR:$Rd),
3838 (ins GPR:$Rt, GPR:$Rt2, addr_offset_none:$addr),
3839 NoItinerary, "strexd", "\t$Rd, $Rt, $Rt2, $addr", []>;
3841 // Clear-Exclusive is for disassembly only.
3842 def CLREX : AXI<(outs), (ins), MiscFrm, NoItinerary, "clrex",
3843 [/* For disassembly only; pattern left blank */]>,
3844 Requires<[IsARM, HasV7]> {
3845 let Inst{31-0} = 0b11110101011111111111000000011111;
3848 // SWP/SWPB are deprecated in V6/V7.
3849 let mayLoad = 1, mayStore = 1 in {
3850 def SWP : AIswp<0, (outs GPR:$Rt), (ins GPR:$Rt2, addr_offset_none:$addr),
3852 def SWPB: AIswp<1, (outs GPR:$Rt), (ins GPR:$Rt2, addr_offset_none:$addr),
3856 //===----------------------------------------------------------------------===//
3857 // Coprocessor Instructions.
3860 def CDP : ABI<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3861 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3862 NoItinerary, "cdp", "\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3863 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3864 imm:$CRm, imm:$opc2)]> {
3872 let Inst{3-0} = CRm;
3874 let Inst{7-5} = opc2;
3875 let Inst{11-8} = cop;
3876 let Inst{15-12} = CRd;
3877 let Inst{19-16} = CRn;
3878 let Inst{23-20} = opc1;
3881 def CDP2 : ABXI<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3882 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3883 NoItinerary, "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3884 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3885 imm:$CRm, imm:$opc2)]> {
3886 let Inst{31-28} = 0b1111;
3894 let Inst{3-0} = CRm;
3896 let Inst{7-5} = opc2;
3897 let Inst{11-8} = cop;
3898 let Inst{15-12} = CRd;
3899 let Inst{19-16} = CRn;
3900 let Inst{23-20} = opc1;
3903 class ACI<dag oops, dag iops, string opc, string asm,
3904 IndexMode im = IndexModeNone>
3905 : InoP<oops, iops, AddrModeNone, 4, im, BrFrm, NoItinerary,
3907 let Inst{27-25} = 0b110;
3910 multiclass LdStCop<bits<4> op31_28, bit load, dag ops, string opc, string cond>{
3912 def _OFFSET : ACI<(outs),
3913 !con((ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr), ops),
3914 !strconcat(opc, cond), "\tp$cop, cr$CRd, $addr"> {
3915 let Inst{31-28} = op31_28;
3916 let Inst{24} = 1; // P = 1
3917 let Inst{21} = 0; // W = 0
3918 let Inst{22} = 0; // D = 0
3919 let Inst{20} = load;
3922 def _PRE : ACI<(outs),
3923 !con((ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr), ops),
3924 !strconcat(opc, cond), "\tp$cop, cr$CRd, $addr!", IndexModePre> {
3925 let Inst{31-28} = op31_28;
3926 let Inst{24} = 1; // P = 1
3927 let Inst{21} = 1; // W = 1
3928 let Inst{22} = 0; // D = 0
3929 let Inst{20} = load;
3932 def _POST : ACI<(outs),
3933 !con((ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr), ops),
3934 !strconcat(opc, cond), "\tp$cop, cr$CRd, $addr", IndexModePost> {
3935 let Inst{31-28} = op31_28;
3936 let Inst{24} = 0; // P = 0
3937 let Inst{21} = 1; // W = 1
3938 let Inst{22} = 0; // D = 0
3939 let Inst{20} = load;
3942 def _OPTION : ACI<(outs),
3943 !con((ins nohash_imm:$cop,nohash_imm:$CRd,GPR:$base, nohash_imm:$option),
3945 !strconcat(opc, cond), "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
3946 let Inst{31-28} = op31_28;
3947 let Inst{24} = 0; // P = 0
3948 let Inst{23} = 1; // U = 1
3949 let Inst{21} = 0; // W = 0
3950 let Inst{22} = 0; // D = 0
3951 let Inst{20} = load;
3954 def L_OFFSET : ACI<(outs),
3955 !con((ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr), ops),
3956 !strconcat(!strconcat(opc, "l"), cond), "\tp$cop, cr$CRd, $addr"> {
3957 let Inst{31-28} = op31_28;
3958 let Inst{24} = 1; // P = 1
3959 let Inst{21} = 0; // W = 0
3960 let Inst{22} = 1; // D = 1
3961 let Inst{20} = load;
3964 def L_PRE : ACI<(outs),
3965 !con((ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr), ops),
3966 !strconcat(!strconcat(opc, "l"), cond), "\tp$cop, cr$CRd, $addr!",
3968 let Inst{31-28} = op31_28;
3969 let Inst{24} = 1; // P = 1
3970 let Inst{21} = 1; // W = 1
3971 let Inst{22} = 1; // D = 1
3972 let Inst{20} = load;
3975 def L_POST : ACI<(outs),
3976 !con((ins nohash_imm:$cop, nohash_imm:$CRd, addr_offset_none:$addr,
3977 i32imm:$offset), ops),
3978 !strconcat(!strconcat(opc, "l"), cond), "\tp$cop, cr$CRd, $addr, $offset",
3980 let Inst{31-28} = op31_28;
3981 let Inst{24} = 0; // P = 0
3982 let Inst{21} = 1; // W = 1
3983 let Inst{22} = 1; // D = 1
3984 let Inst{20} = load;
3987 def L_OPTION : ACI<(outs),
3988 !con((ins nohash_imm:$cop, nohash_imm:$CRd,GPR:$base,nohash_imm:$option),
3990 !strconcat(!strconcat(opc, "l"), cond),
3991 "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
3992 let Inst{31-28} = op31_28;
3993 let Inst{24} = 0; // P = 0
3994 let Inst{23} = 1; // U = 1
3995 let Inst{21} = 0; // W = 0
3996 let Inst{22} = 1; // D = 1
3997 let Inst{20} = load;
4001 defm LDC : LdStCop<{?,?,?,?}, 1, (ins pred:$p), "ldc", "${p}">;
4002 defm LDC2 : LdStCop<0b1111, 1, (ins), "ldc2", "">;
4003 defm STC : LdStCop<{?,?,?,?}, 0, (ins pred:$p), "stc", "${p}">;
4004 defm STC2 : LdStCop<0b1111, 0, (ins), "stc2", "">;
4006 //===----------------------------------------------------------------------===//
4007 // Move between coprocessor and ARM core register -- for disassembly only
4010 class MovRCopro<string opc, bit direction, dag oops, dag iops,
4012 : ABI<0b1110, oops, iops, NoItinerary, opc,
4013 "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2", pattern> {
4014 let Inst{20} = direction;
4024 let Inst{15-12} = Rt;
4025 let Inst{11-8} = cop;
4026 let Inst{23-21} = opc1;
4027 let Inst{7-5} = opc2;
4028 let Inst{3-0} = CRm;
4029 let Inst{19-16} = CRn;
4032 def MCR : MovRCopro<"mcr", 0 /* from ARM core register to coprocessor */,
4034 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4035 c_imm:$CRm, imm0_7:$opc2),
4036 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
4037 imm:$CRm, imm:$opc2)]>;
4038 def MRC : MovRCopro<"mrc", 1 /* from coprocessor to ARM core register */,
4040 (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, c_imm:$CRm,
4043 def : ARMPat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
4044 (MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
4046 class MovRCopro2<string opc, bit direction, dag oops, dag iops,
4048 : ABXI<0b1110, oops, iops, NoItinerary,
4049 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"), pattern> {
4050 let Inst{31-28} = 0b1111;
4051 let Inst{20} = direction;
4061 let Inst{15-12} = Rt;
4062 let Inst{11-8} = cop;
4063 let Inst{23-21} = opc1;
4064 let Inst{7-5} = opc2;
4065 let Inst{3-0} = CRm;
4066 let Inst{19-16} = CRn;
4069 def MCR2 : MovRCopro2<"mcr2", 0 /* from ARM core register to coprocessor */,
4071 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4072 c_imm:$CRm, imm0_7:$opc2),
4073 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
4074 imm:$CRm, imm:$opc2)]>;
4075 def MRC2 : MovRCopro2<"mrc2", 1 /* from coprocessor to ARM core register */,
4077 (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, c_imm:$CRm,
4080 def : ARMV5TPat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn,
4081 imm:$CRm, imm:$opc2),
4082 (MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
4084 class MovRRCopro<string opc, bit direction,
4085 list<dag> pattern = [/* For disassembly only */]>
4086 : ABI<0b1100, (outs), (ins p_imm:$cop, imm0_15:$opc1,
4087 GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
4088 NoItinerary, opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm", pattern> {
4089 let Inst{23-21} = 0b010;
4090 let Inst{20} = direction;
4098 let Inst{15-12} = Rt;
4099 let Inst{19-16} = Rt2;
4100 let Inst{11-8} = cop;
4101 let Inst{7-4} = opc1;
4102 let Inst{3-0} = CRm;
4105 def MCRR : MovRRCopro<"mcrr", 0 /* from ARM core register to coprocessor */,
4106 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
4108 def MRRC : MovRRCopro<"mrrc", 1 /* from coprocessor to ARM core register */>;
4110 class MovRRCopro2<string opc, bit direction,
4111 list<dag> pattern = [/* For disassembly only */]>
4112 : ABXI<0b1100, (outs), (ins p_imm:$cop, imm0_15:$opc1,
4113 GPR:$Rt, GPR:$Rt2, c_imm:$CRm), NoItinerary,
4114 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
4115 let Inst{31-28} = 0b1111;
4116 let Inst{23-21} = 0b010;
4117 let Inst{20} = direction;
4125 let Inst{15-12} = Rt;
4126 let Inst{19-16} = Rt2;
4127 let Inst{11-8} = cop;
4128 let Inst{7-4} = opc1;
4129 let Inst{3-0} = CRm;
4132 def MCRR2 : MovRRCopro2<"mcrr2", 0 /* from ARM core register to coprocessor */,
4133 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
4135 def MRRC2 : MovRRCopro2<"mrrc2", 1 /* from coprocessor to ARM core register */>;
4137 //===----------------------------------------------------------------------===//
4138 // Move between special register and ARM core register
4141 // Move to ARM core register from Special Register
4142 def MRS : ABI<0b0001, (outs GPR:$Rd), (ins), NoItinerary,
4143 "mrs", "\t$Rd, apsr", []> {
4145 let Inst{23-16} = 0b00001111;
4146 let Inst{15-12} = Rd;
4147 let Inst{7-4} = 0b0000;
4150 def : InstAlias<"mrs${p} $Rd, cpsr", (MRS GPR:$Rd, pred:$p)>, Requires<[IsARM]>;
4152 def MRSsys : ABI<0b0001, (outs GPR:$Rd), (ins), NoItinerary,
4153 "mrs", "\t$Rd, spsr", []> {
4155 let Inst{23-16} = 0b01001111;
4156 let Inst{15-12} = Rd;
4157 let Inst{7-4} = 0b0000;
4160 // Move from ARM core register to Special Register
4162 // No need to have both system and application versions, the encodings are the
4163 // same and the assembly parser has no way to distinguish between them. The mask
4164 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
4165 // the mask with the fields to be accessed in the special register.
4166 def MSR : ABI<0b0001, (outs), (ins msr_mask:$mask, GPR:$Rn), NoItinerary,
4167 "msr", "\t$mask, $Rn", []> {
4172 let Inst{22} = mask{4}; // R bit
4173 let Inst{21-20} = 0b10;
4174 let Inst{19-16} = mask{3-0};
4175 let Inst{15-12} = 0b1111;
4176 let Inst{11-4} = 0b00000000;
4180 def MSRi : ABI<0b0011, (outs), (ins msr_mask:$mask, so_imm:$a), NoItinerary,
4181 "msr", "\t$mask, $a", []> {
4186 let Inst{22} = mask{4}; // R bit
4187 let Inst{21-20} = 0b10;
4188 let Inst{19-16} = mask{3-0};
4189 let Inst{15-12} = 0b1111;
4193 //===----------------------------------------------------------------------===//
4197 // __aeabi_read_tp preserves the registers r1-r3.
4198 // This is a pseudo inst so that we can get the encoding right,
4199 // complete with fixup for the aeabi_read_tp function.
4201 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
4202 def TPsoft : PseudoInst<(outs), (ins), IIC_Br,
4203 [(set R0, ARMthread_pointer)]>;
4206 //===----------------------------------------------------------------------===//
4207 // SJLJ Exception handling intrinsics
4208 // eh_sjlj_setjmp() is an instruction sequence to store the return
4209 // address and save #0 in R0 for the non-longjmp case.
4210 // Since by its nature we may be coming from some other function to get
4211 // here, and we're using the stack frame for the containing function to
4212 // save/restore registers, we can't keep anything live in regs across
4213 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
4214 // when we get here from a longjmp(). We force everything out of registers
4215 // except for our own input by listing the relevant registers in Defs. By
4216 // doing so, we also cause the prologue/epilogue code to actively preserve
4217 // all of the callee-saved resgisters, which is exactly what we want.
4218 // A constant value is passed in $val, and we use the location as a scratch.
4220 // These are pseudo-instructions and are lowered to individual MC-insts, so
4221 // no encoding information is necessary.
4223 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
4224 QQQQ0, QQQQ1, QQQQ2, QQQQ3 ], hasSideEffects = 1, isBarrier = 1 in {
4225 def Int_eh_sjlj_setjmp : PseudoInst<(outs), (ins GPR:$src, GPR:$val),
4227 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, GPR:$val))]>,
4228 Requires<[IsARM, HasVFP2]>;
4232 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
4233 hasSideEffects = 1, isBarrier = 1 in {
4234 def Int_eh_sjlj_setjmp_nofp : PseudoInst<(outs), (ins GPR:$src, GPR:$val),
4236 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, GPR:$val))]>,
4237 Requires<[IsARM, NoVFP]>;
4240 // FIXME: Non-Darwin version(s)
4241 let isBarrier = 1, hasSideEffects = 1, isTerminator = 1,
4242 Defs = [ R7, LR, SP ] in {
4243 def Int_eh_sjlj_longjmp : PseudoInst<(outs), (ins GPR:$src, GPR:$scratch),
4245 [(ARMeh_sjlj_longjmp GPR:$src, GPR:$scratch)]>,
4246 Requires<[IsARM, IsDarwin]>;
4249 // eh.sjlj.dispatchsetup pseudo-instruction.
4250 // This pseudo is used for ARM, Thumb1 and Thumb2. Any differences are
4251 // handled when the pseudo is expanded (which happens before any passes
4252 // that need the instruction size).
4253 let isBarrier = 1, hasSideEffects = 1 in
4254 def Int_eh_sjlj_dispatchsetup :
4255 PseudoInst<(outs), (ins GPR:$src), NoItinerary,
4256 [(ARMeh_sjlj_dispatchsetup GPR:$src)]>,
4257 Requires<[IsDarwin]>;
4259 //===----------------------------------------------------------------------===//
4260 // Non-Instruction Patterns
4263 // ARMv4 indirect branch using (MOVr PC, dst)
4264 let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in
4265 def MOVPCRX : ARMPseudoExpand<(outs), (ins GPR:$dst),
4266 4, IIC_Br, [(brind GPR:$dst)],
4267 (MOVr PC, GPR:$dst, (ops 14, zero_reg), zero_reg)>,
4268 Requires<[IsARM, NoV4T]>;
4270 // Large immediate handling.
4272 // 32-bit immediate using two piece so_imms or movw + movt.
4273 // This is a single pseudo instruction, the benefit is that it can be remat'd
4274 // as a single unit instead of having to handle reg inputs.
4275 // FIXME: Remove this when we can do generalized remat.
4276 let isReMaterializable = 1, isMoveImm = 1 in
4277 def MOVi32imm : PseudoInst<(outs GPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
4278 [(set GPR:$dst, (arm_i32imm:$src))]>,
4281 // Pseudo instruction that combines movw + movt + add pc (if PIC).
4282 // It also makes it possible to rematerialize the instructions.
4283 // FIXME: Remove this when we can do generalized remat and when machine licm
4284 // can properly the instructions.
4285 let isReMaterializable = 1 in {
4286 def MOV_ga_pcrel : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
4288 [(set GPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
4289 Requires<[IsARM, UseMovt]>;
4291 def MOV_ga_dyn : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
4293 [(set GPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
4294 Requires<[IsARM, UseMovt]>;
4296 let AddedComplexity = 10 in
4297 def MOV_ga_pcrel_ldr : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
4299 [(set GPR:$dst, (load (ARMWrapperPIC tglobaladdr:$addr)))]>,
4300 Requires<[IsARM, UseMovt]>;
4301 } // isReMaterializable
4303 // ConstantPool, GlobalAddress, and JumpTable
4304 def : ARMPat<(ARMWrapper tglobaladdr :$dst), (LEApcrel tglobaladdr :$dst)>,
4305 Requires<[IsARM, DontUseMovt]>;
4306 def : ARMPat<(ARMWrapper tconstpool :$dst), (LEApcrel tconstpool :$dst)>;
4307 def : ARMPat<(ARMWrapper tglobaladdr :$dst), (MOVi32imm tglobaladdr :$dst)>,
4308 Requires<[IsARM, UseMovt]>;
4309 def : ARMPat<(ARMWrapperJT tjumptable:$dst, imm:$id),
4310 (LEApcrelJT tjumptable:$dst, imm:$id)>;
4312 // TODO: add,sub,and, 3-instr forms?
4315 def : ARMPat<(ARMtcret tcGPR:$dst),
4316 (TCRETURNri tcGPR:$dst)>, Requires<[IsDarwin]>;
4318 def : ARMPat<(ARMtcret (i32 tglobaladdr:$dst)),
4319 (TCRETURNdi texternalsym:$dst)>, Requires<[IsDarwin]>;
4321 def : ARMPat<(ARMtcret (i32 texternalsym:$dst)),
4322 (TCRETURNdi texternalsym:$dst)>, Requires<[IsDarwin]>;
4324 def : ARMPat<(ARMtcret tcGPR:$dst),
4325 (TCRETURNriND tcGPR:$dst)>, Requires<[IsNotDarwin]>;
4327 def : ARMPat<(ARMtcret (i32 tglobaladdr:$dst)),
4328 (TCRETURNdiND texternalsym:$dst)>, Requires<[IsNotDarwin]>;
4330 def : ARMPat<(ARMtcret (i32 texternalsym:$dst)),
4331 (TCRETURNdiND texternalsym:$dst)>, Requires<[IsNotDarwin]>;
4334 def : ARMPat<(ARMcall texternalsym:$func), (BL texternalsym:$func)>,
4335 Requires<[IsARM, IsNotDarwin]>;
4336 def : ARMPat<(ARMcall texternalsym:$func), (BLr9 texternalsym:$func)>,
4337 Requires<[IsARM, IsDarwin]>;
4339 // zextload i1 -> zextload i8
4340 def : ARMPat<(zextloadi1 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
4341 def : ARMPat<(zextloadi1 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
4343 // extload -> zextload
4344 def : ARMPat<(extloadi1 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
4345 def : ARMPat<(extloadi1 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
4346 def : ARMPat<(extloadi8 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
4347 def : ARMPat<(extloadi8 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
4349 def : ARMPat<(extloadi16 addrmode3:$addr), (LDRH addrmode3:$addr)>;
4351 def : ARMPat<(extloadi8 addrmodepc:$addr), (PICLDRB addrmodepc:$addr)>;
4352 def : ARMPat<(extloadi16 addrmodepc:$addr), (PICLDRH addrmodepc:$addr)>;
4355 def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
4356 (sra (shl GPR:$b, (i32 16)), (i32 16))),
4357 (SMULBB GPR:$a, GPR:$b)>;
4358 def : ARMV5TEPat<(mul sext_16_node:$a, sext_16_node:$b),
4359 (SMULBB GPR:$a, GPR:$b)>;
4360 def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
4361 (sra GPR:$b, (i32 16))),
4362 (SMULBT GPR:$a, GPR:$b)>;
4363 def : ARMV5TEPat<(mul sext_16_node:$a, (sra GPR:$b, (i32 16))),
4364 (SMULBT GPR:$a, GPR:$b)>;
4365 def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)),
4366 (sra (shl GPR:$b, (i32 16)), (i32 16))),
4367 (SMULTB GPR:$a, GPR:$b)>;
4368 def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)), sext_16_node:$b),
4369 (SMULTB GPR:$a, GPR:$b)>;
4370 def : ARMV5TEPat<(sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
4372 (SMULWB GPR:$a, GPR:$b)>;
4373 def : ARMV5TEPat<(sra (mul GPR:$a, sext_16_node:$b), (i32 16)),
4374 (SMULWB GPR:$a, GPR:$b)>;
4376 def : ARMV5TEPat<(add GPR:$acc,
4377 (mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
4378 (sra (shl GPR:$b, (i32 16)), (i32 16)))),
4379 (SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
4380 def : ARMV5TEPat<(add GPR:$acc,
4381 (mul sext_16_node:$a, sext_16_node:$b)),
4382 (SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
4383 def : ARMV5TEPat<(add GPR:$acc,
4384 (mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
4385 (sra GPR:$b, (i32 16)))),
4386 (SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
4387 def : ARMV5TEPat<(add GPR:$acc,
4388 (mul sext_16_node:$a, (sra GPR:$b, (i32 16)))),
4389 (SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
4390 def : ARMV5TEPat<(add GPR:$acc,
4391 (mul (sra GPR:$a, (i32 16)),
4392 (sra (shl GPR:$b, (i32 16)), (i32 16)))),
4393 (SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
4394 def : ARMV5TEPat<(add GPR:$acc,
4395 (mul (sra GPR:$a, (i32 16)), sext_16_node:$b)),
4396 (SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
4397 def : ARMV5TEPat<(add GPR:$acc,
4398 (sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
4400 (SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
4401 def : ARMV5TEPat<(add GPR:$acc,
4402 (sra (mul GPR:$a, sext_16_node:$b), (i32 16))),
4403 (SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
4406 // Pre-v7 uses MCR for synchronization barriers.
4407 def : ARMPat<(ARMMemBarrierMCR GPR:$zero), (MCR 15, 0, GPR:$zero, 7, 10, 5)>,
4408 Requires<[IsARM, HasV6]>;
4410 // SXT/UXT with no rotate
4411 let AddedComplexity = 16 in {
4412 def : ARMV6Pat<(and GPR:$Src, 0x000000FF), (UXTB GPR:$Src, 0)>;
4413 def : ARMV6Pat<(and GPR:$Src, 0x0000FFFF), (UXTH GPR:$Src, 0)>;
4414 def : ARMV6Pat<(and GPR:$Src, 0x00FF00FF), (UXTB16 GPR:$Src, 0)>;
4415 def : ARMV6Pat<(add GPR:$Rn, (and GPR:$Rm, 0x00FF)),
4416 (UXTAB GPR:$Rn, GPR:$Rm, 0)>;
4417 def : ARMV6Pat<(add GPR:$Rn, (and GPR:$Rm, 0xFFFF)),
4418 (UXTAH GPR:$Rn, GPR:$Rm, 0)>;
4421 def : ARMV6Pat<(sext_inreg GPR:$Src, i8), (SXTB GPR:$Src, 0)>;
4422 def : ARMV6Pat<(sext_inreg GPR:$Src, i16), (SXTH GPR:$Src, 0)>;
4424 def : ARMV6Pat<(add GPR:$Rn, (sext_inreg GPR:$Rm, i8)),
4425 (SXTAB GPR:$Rn, GPR:$Rm, 0)>;
4426 def : ARMV6Pat<(add GPR:$Rn, (sext_inreg GPR:$Rm, i16)),
4427 (SXTAH GPR:$Rn, GPR:$Rm, 0)>;
4429 //===----------------------------------------------------------------------===//
4433 include "ARMInstrThumb.td"
4435 //===----------------------------------------------------------------------===//
4439 include "ARMInstrThumb2.td"
4441 //===----------------------------------------------------------------------===//
4442 // Floating Point Support
4445 include "ARMInstrVFP.td"
4447 //===----------------------------------------------------------------------===//
4448 // Advanced SIMD (NEON) Support
4451 include "ARMInstrNEON.td"
4453 //===----------------------------------------------------------------------===//
4454 // Assembler aliases
4458 def : InstAlias<"dmb", (DMB 0xf)>, Requires<[IsARM, HasDB]>;
4459 def : InstAlias<"dsb", (DSB 0xf)>, Requires<[IsARM, HasDB]>;
4460 def : InstAlias<"isb", (ISB 0xf)>, Requires<[IsARM, HasDB]>;
4462 // System instructions
4463 def : MnemonicAlias<"swi", "svc">;
4465 // Load / Store Multiple
4466 def : MnemonicAlias<"ldmfd", "ldm">;
4467 def : MnemonicAlias<"ldmia", "ldm">;
4468 def : MnemonicAlias<"stmfd", "stmdb">;
4469 def : MnemonicAlias<"stmia", "stm">;
4470 def : MnemonicAlias<"stmea", "stm">;
4472 // PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT when the
4473 // shift amount is zero (i.e., unspecified).
4474 def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
4475 (PKHBT GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4476 def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
4477 (PKHBT GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4479 // PUSH/POP aliases for STM/LDM
4480 def : InstAlias<"push${p} $regs",
4481 (STMDB_UPD SP, pred:$p, reglist:$regs)>;
4482 def : InstAlias<"pop${p} $regs",
4483 (LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4485 // RSB two-operand forms (optional explicit destination operand)
4486 def : InstAlias<"rsb${s}${p} $Rdn, $imm",
4487 (RSBri GPR:$Rdn, GPR:$Rdn, so_imm:$imm, pred:$p, cc_out:$s)>,
4489 def : InstAlias<"rsb${s}${p} $Rdn, $Rm",
4490 (RSBrr GPR:$Rdn, GPR:$Rdn, GPR:$Rm, pred:$p, cc_out:$s)>,
4492 def : InstAlias<"rsb${s}${p} $Rdn, $shift",
4493 (RSBrsi GPR:$Rdn, GPR:$Rdn, so_reg_imm:$shift, pred:$p,
4494 cc_out:$s)>, Requires<[IsARM]>;
4495 def : InstAlias<"rsb${s}${p} $Rdn, $shift",
4496 (RSBrsr GPR:$Rdn, GPR:$Rdn, so_reg_reg:$shift, pred:$p,
4497 cc_out:$s)>, Requires<[IsARM]>;
4498 // RSC two-operand forms (optional explicit destination operand)
4499 def : InstAlias<"rsc${s}${p} $Rdn, $imm",
4500 (RSCri GPR:$Rdn, GPR:$Rdn, so_imm:$imm, pred:$p, cc_out:$s)>,
4502 def : InstAlias<"rsc${s}${p} $Rdn, $Rm",
4503 (RSCrr GPR:$Rdn, GPR:$Rdn, GPR:$Rm, pred:$p, cc_out:$s)>,
4505 def : InstAlias<"rsc${s}${p} $Rdn, $shift",
4506 (RSCrsi GPR:$Rdn, GPR:$Rdn, so_reg_imm:$shift, pred:$p,
4507 cc_out:$s)>, Requires<[IsARM]>;
4508 def : InstAlias<"rsc${s}${p} $Rdn, $shift",
4509 (RSCrsr GPR:$Rdn, GPR:$Rdn, so_reg_reg:$shift, pred:$p,
4510 cc_out:$s)>, Requires<[IsARM]>;
4512 // SSAT/USAT optional shift operand.
4513 def : InstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
4514 (SSAT GPR:$Rd, imm1_32:$sat_imm, GPR:$Rn, 0, pred:$p)>;
4515 def : InstAlias<"usat${p} $Rd, $sat_imm, $Rn",
4516 (USAT GPR:$Rd, imm0_31:$sat_imm, GPR:$Rn, 0, pred:$p)>;
4519 // Extend instruction optional rotate operand.
4520 def : InstAlias<"sxtab${p} $Rd, $Rn, $Rm",
4521 (SXTAB GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4522 def : InstAlias<"sxtah${p} $Rd, $Rn, $Rm",
4523 (SXTAH GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4524 def : InstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
4525 (SXTAB16 GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4526 def : InstAlias<"sxtb${p} $Rd, $Rm", (SXTB GPR:$Rd, GPR:$Rm, 0, pred:$p)>;
4527 def : InstAlias<"sxtb16${p} $Rd, $Rm", (SXTB16 GPR:$Rd, GPR:$Rm, 0, pred:$p)>;
4528 def : InstAlias<"sxth${p} $Rd, $Rm", (SXTH GPR:$Rd, GPR:$Rm, 0, pred:$p)>;
4530 def : InstAlias<"uxtab${p} $Rd, $Rn, $Rm",
4531 (UXTAB GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4532 def : InstAlias<"uxtah${p} $Rd, $Rn, $Rm",
4533 (UXTAH GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4534 def : InstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
4535 (UXTAB16 GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4536 def : InstAlias<"uxtb${p} $Rd, $Rm", (UXTB GPR:$Rd, GPR:$Rm, 0, pred:$p)>;
4537 def : InstAlias<"uxtb16${p} $Rd, $Rm", (UXTB16 GPR:$Rd, GPR:$Rm, 0, pred:$p)>;
4538 def : InstAlias<"uxth${p} $Rd, $Rm", (UXTH GPR:$Rd, GPR:$Rm, 0, pred:$p)>;
4542 def : MnemonicAlias<"rfefa", "rfeda">;
4543 def : MnemonicAlias<"rfeea", "rfedb">;
4544 def : MnemonicAlias<"rfefd", "rfeia">;
4545 def : MnemonicAlias<"rfeed", "rfeib">;
4546 def : MnemonicAlias<"rfe", "rfeia">;
4549 def : MnemonicAlias<"srsfa", "srsda">;
4550 def : MnemonicAlias<"srsea", "srsdb">;
4551 def : MnemonicAlias<"srsfd", "srsia">;
4552 def : MnemonicAlias<"srsed", "srsib">;
4553 def : MnemonicAlias<"srs", "srsia">;
4555 // LDRSBT/LDRHT/LDRSHT post-index offset if optional.
4556 // Note that the write-back output register is a dummy operand for MC (it's
4557 // only meaningful for codegen), so we just pass zero here.
4558 // FIXME: tblgen not cooperating with argument conversions.
4559 //def : InstAlias<"ldrsbt${p} $Rt, $addr",
4560 // (LDRSBTi GPR:$Rt, GPR:$Rt, addr_offset_none:$addr, 0,pred:$p)>;
4561 //def : InstAlias<"ldrht${p} $Rt, $addr",
4562 // (LDRHTi GPR:$Rt, GPR:$Rt, addr_offset_none:$addr, 0, pred:$p)>;
4563 //def : InstAlias<"ldrsht${p} $Rt, $addr",
4564 // (LDRSHTi GPR:$Rt, GPR:$Rt, addr_offset_none:$addr, 0, pred:$p)>;