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:$shift);
617 // postidx_imm8 := +/- [0,255]
620 // {8} 1 is imm8 is non-negative. 0 otherwise.
621 // {7-0} [0,255] imm8 value.
622 def PostIdxImm8AsmOperand : AsmOperandClass { let Name = "PostIdxImm8"; }
623 def postidx_imm8 : Operand<i32> {
624 let PrintMethod = "printPostIdxImm8Operand";
625 let ParserMatchClass = PostIdxImm8AsmOperand;
626 let MIOperandInfo = (ops i32imm);
629 // postidx_imm8s4 := +/- [0,1020]
632 // {8} 1 is imm8 is non-negative. 0 otherwise.
633 // {7-0} [0,255] imm8 value, scaled by 4.
634 def postidx_imm8s4 : Operand<i32> {
635 let PrintMethod = "printPostIdxImm8s4Operand";
636 let MIOperandInfo = (ops i32imm);
640 // postidx_reg := +/- reg
642 def PostIdxRegAsmOperand : AsmOperandClass {
643 let Name = "PostIdxReg";
644 let ParserMethod = "parsePostIdxReg";
646 def postidx_reg : Operand<i32> {
647 let EncoderMethod = "getPostIdxRegOpValue";
648 let PrintMethod = "printPostIdxRegOperand";
649 let ParserMatchClass = PostIdxRegAsmOperand;
650 let MIOperandInfo = (ops GPR, i32imm);
654 // addrmode2 := reg +/- imm12
655 // := reg +/- reg shop imm
657 // FIXME: addrmode2 should be refactored the rest of the way to always
658 // use explicit imm vs. reg versions above (addrmode_imm12 and ldst_so_reg).
659 def AddrMode2AsmOperand : AsmOperandClass { let Name = "AddrMode2"; }
660 def addrmode2 : Operand<i32>,
661 ComplexPattern<i32, 3, "SelectAddrMode2", []> {
662 let EncoderMethod = "getAddrMode2OpValue";
663 let PrintMethod = "printAddrMode2Operand";
664 let ParserMatchClass = AddrMode2AsmOperand;
665 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
668 def PostIdxRegShiftedAsmOperand : AsmOperandClass {
669 let Name = "PostIdxRegShifted";
670 let ParserMethod = "parsePostIdxReg";
672 def am2offset_reg : Operand<i32>,
673 ComplexPattern<i32, 2, "SelectAddrMode2OffsetReg",
674 [], [SDNPWantRoot]> {
675 let EncoderMethod = "getAddrMode2OffsetOpValue";
676 let PrintMethod = "printAddrMode2OffsetOperand";
677 // When using this for assembly, it's always as a post-index offset.
678 let ParserMatchClass = PostIdxRegShiftedAsmOperand;
679 let MIOperandInfo = (ops GPR, i32imm);
682 // FIXME: am2offset_imm should only need the immediate, not the GPR. Having
683 // the GPR is purely vestigal at this point.
684 def AM2OffsetImmAsmOperand : AsmOperandClass { let Name = "AM2OffsetImm"; }
685 def am2offset_imm : Operand<i32>,
686 ComplexPattern<i32, 2, "SelectAddrMode2OffsetImm",
687 [], [SDNPWantRoot]> {
688 let EncoderMethod = "getAddrMode2OffsetOpValue";
689 let PrintMethod = "printAddrMode2OffsetOperand";
690 let ParserMatchClass = AM2OffsetImmAsmOperand;
691 let MIOperandInfo = (ops GPR, i32imm);
695 // addrmode3 := reg +/- reg
696 // addrmode3 := reg +/- imm8
698 //def AddrMode3AsmOperand : AsmOperandClass { let Name = "AddrMode3"; }
699 def addrmode3 : Operand<i32>,
700 ComplexPattern<i32, 3, "SelectAddrMode3", []> {
701 let EncoderMethod = "getAddrMode3OpValue";
702 let PrintMethod = "printAddrMode3Operand";
703 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
706 def am3offset : Operand<i32>,
707 ComplexPattern<i32, 2, "SelectAddrMode3Offset",
708 [], [SDNPWantRoot]> {
709 let EncoderMethod = "getAddrMode3OffsetOpValue";
710 let PrintMethod = "printAddrMode3OffsetOperand";
711 let MIOperandInfo = (ops GPR, i32imm);
714 // ldstm_mode := {ia, ib, da, db}
716 def ldstm_mode : OptionalDefOperand<OtherVT, (ops i32), (ops (i32 1))> {
717 let EncoderMethod = "getLdStmModeOpValue";
718 let PrintMethod = "printLdStmModeOperand";
721 // addrmode5 := reg +/- imm8*4
723 def AddrMode5AsmOperand : AsmOperandClass { let Name = "AddrMode5"; }
724 def addrmode5 : Operand<i32>,
725 ComplexPattern<i32, 2, "SelectAddrMode5", []> {
726 let PrintMethod = "printAddrMode5Operand";
727 let EncoderMethod = "getAddrMode5OpValue";
728 let ParserMatchClass = AddrMode5AsmOperand;
729 let MIOperandInfo = (ops GPR:$base, i32imm);
732 // addrmode6 := reg with optional alignment
734 def addrmode6 : Operand<i32>,
735 ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
736 let PrintMethod = "printAddrMode6Operand";
737 let MIOperandInfo = (ops GPR:$addr, i32imm);
738 let EncoderMethod = "getAddrMode6AddressOpValue";
741 def am6offset : Operand<i32>,
742 ComplexPattern<i32, 1, "SelectAddrMode6Offset",
743 [], [SDNPWantRoot]> {
744 let PrintMethod = "printAddrMode6OffsetOperand";
745 let MIOperandInfo = (ops GPR);
746 let EncoderMethod = "getAddrMode6OffsetOpValue";
749 // Special version of addrmode6 to handle alignment encoding for VST1/VLD1
750 // (single element from one lane) for size 32.
751 def addrmode6oneL32 : Operand<i32>,
752 ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
753 let PrintMethod = "printAddrMode6Operand";
754 let MIOperandInfo = (ops GPR:$addr, i32imm);
755 let EncoderMethod = "getAddrMode6OneLane32AddressOpValue";
758 // Special version of addrmode6 to handle alignment encoding for VLD-dup
759 // instructions, specifically VLD4-dup.
760 def addrmode6dup : Operand<i32>,
761 ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
762 let PrintMethod = "printAddrMode6Operand";
763 let MIOperandInfo = (ops GPR:$addr, i32imm);
764 let EncoderMethod = "getAddrMode6DupAddressOpValue";
767 // addrmodepc := pc + reg
769 def addrmodepc : Operand<i32>,
770 ComplexPattern<i32, 2, "SelectAddrModePC", []> {
771 let PrintMethod = "printAddrModePCOperand";
772 let MIOperandInfo = (ops GPR, i32imm);
775 // addr_offset_none := reg
777 def MemNoOffsetAsmOperand : AsmOperandClass { let Name = "MemNoOffset"; }
778 def addr_offset_none : Operand<i32>,
779 ComplexPattern<i32, 1, "SelectAddrOffsetNone", []> {
780 let PrintMethod = "printAddrMode7Operand";
781 let ParserMatchClass = MemNoOffsetAsmOperand;
782 let MIOperandInfo = (ops GPR:$base);
785 def nohash_imm : Operand<i32> {
786 let PrintMethod = "printNoHashImmediate";
789 def CoprocNumAsmOperand : AsmOperandClass {
790 let Name = "CoprocNum";
791 let ParserMethod = "parseCoprocNumOperand";
793 def p_imm : Operand<i32> {
794 let PrintMethod = "printPImmediate";
795 let ParserMatchClass = CoprocNumAsmOperand;
798 def CoprocRegAsmOperand : AsmOperandClass {
799 let Name = "CoprocReg";
800 let ParserMethod = "parseCoprocRegOperand";
802 def c_imm : Operand<i32> {
803 let PrintMethod = "printCImmediate";
804 let ParserMatchClass = CoprocRegAsmOperand;
807 //===----------------------------------------------------------------------===//
809 include "ARMInstrFormats.td"
811 //===----------------------------------------------------------------------===//
812 // Multiclass helpers...
815 /// AsI1_bin_irs - Defines a set of (op r, {so_imm|r|so_reg}) patterns for a
816 /// binop that produces a value.
817 multiclass AsI1_bin_irs<bits<4> opcod, string opc,
818 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
819 PatFrag opnode, string baseOpc, bit Commutable = 0> {
820 // The register-immediate version is re-materializable. This is useful
821 // in particular for taking the address of a local.
822 let isReMaterializable = 1 in {
823 def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
824 iii, opc, "\t$Rd, $Rn, $imm",
825 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]> {
830 let Inst{19-16} = Rn;
831 let Inst{15-12} = Rd;
832 let Inst{11-0} = imm;
835 def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
836 iir, opc, "\t$Rd, $Rn, $Rm",
837 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]> {
842 let isCommutable = Commutable;
843 let Inst{19-16} = Rn;
844 let Inst{15-12} = Rd;
845 let Inst{11-4} = 0b00000000;
849 def rsi : AsI1<opcod, (outs GPR:$Rd),
850 (ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm,
851 iis, opc, "\t$Rd, $Rn, $shift",
852 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_imm:$shift))]> {
857 let Inst{19-16} = Rn;
858 let Inst{15-12} = Rd;
859 let Inst{11-5} = shift{11-5};
861 let Inst{3-0} = shift{3-0};
864 def rsr : AsI1<opcod, (outs GPR:$Rd),
865 (ins GPR:$Rn, so_reg_reg:$shift), DPSoRegRegFrm,
866 iis, opc, "\t$Rd, $Rn, $shift",
867 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_reg:$shift))]> {
872 let Inst{19-16} = Rn;
873 let Inst{15-12} = Rd;
874 let Inst{11-8} = shift{11-8};
876 let Inst{6-5} = shift{6-5};
878 let Inst{3-0} = shift{3-0};
881 // Assembly aliases for optional destination operand when it's the same
882 // as the source operand.
883 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
884 (!cast<Instruction>(!strconcat(baseOpc, "ri")) GPR:$Rdn, GPR:$Rdn,
885 so_imm:$imm, pred:$p,
888 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $Rm"),
889 (!cast<Instruction>(!strconcat(baseOpc, "rr")) GPR:$Rdn, GPR:$Rdn,
893 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
894 (!cast<Instruction>(!strconcat(baseOpc, "rsi")) GPR:$Rdn, GPR:$Rdn,
895 so_reg_imm:$shift, pred:$p,
898 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
899 (!cast<Instruction>(!strconcat(baseOpc, "rsr")) GPR:$Rdn, GPR:$Rdn,
900 so_reg_reg:$shift, pred:$p,
906 /// AI1_bin_s_irs - Similar to AsI1_bin_irs except it sets the 's' bit so the
907 /// instruction modifies the CPSR register.
908 let isCodeGenOnly = 1, Defs = [CPSR] in {
909 multiclass AI1_bin_s_irs<bits<4> opcod, string opc,
910 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
911 PatFrag opnode, bit Commutable = 0> {
912 def ri : AI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
913 iii, opc, "\t$Rd, $Rn, $imm",
914 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]> {
920 let Inst{19-16} = Rn;
921 let Inst{15-12} = Rd;
922 let Inst{11-0} = imm;
924 def rr : AI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
925 iir, opc, "\t$Rd, $Rn, $Rm",
926 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]> {
930 let isCommutable = Commutable;
933 let Inst{19-16} = Rn;
934 let Inst{15-12} = Rd;
935 let Inst{11-4} = 0b00000000;
938 def rsi : AI1<opcod, (outs GPR:$Rd),
939 (ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm,
940 iis, opc, "\t$Rd, $Rn, $shift",
941 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_imm:$shift))]> {
947 let Inst{19-16} = Rn;
948 let Inst{15-12} = Rd;
949 let Inst{11-5} = shift{11-5};
951 let Inst{3-0} = shift{3-0};
954 def rsr : AI1<opcod, (outs GPR:$Rd),
955 (ins GPR:$Rn, so_reg_reg:$shift), DPSoRegRegFrm,
956 iis, opc, "\t$Rd, $Rn, $shift",
957 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_reg:$shift))]> {
963 let Inst{19-16} = Rn;
964 let Inst{15-12} = Rd;
965 let Inst{11-8} = shift{11-8};
967 let Inst{6-5} = shift{6-5};
969 let Inst{3-0} = shift{3-0};
974 /// AI1_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
975 /// patterns. Similar to AsI1_bin_irs except the instruction does not produce
976 /// a explicit result, only implicitly set CPSR.
977 let isCompare = 1, Defs = [CPSR] in {
978 multiclass AI1_cmp_irs<bits<4> opcod, string opc,
979 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
980 PatFrag opnode, bit Commutable = 0> {
981 def ri : AI1<opcod, (outs), (ins GPR:$Rn, so_imm:$imm), DPFrm, iii,
983 [(opnode GPR:$Rn, so_imm:$imm)]> {
988 let Inst{19-16} = Rn;
989 let Inst{15-12} = 0b0000;
990 let Inst{11-0} = imm;
992 def rr : AI1<opcod, (outs), (ins GPR:$Rn, GPR:$Rm), DPFrm, iir,
994 [(opnode GPR:$Rn, GPR:$Rm)]> {
997 let isCommutable = Commutable;
1000 let Inst{19-16} = Rn;
1001 let Inst{15-12} = 0b0000;
1002 let Inst{11-4} = 0b00000000;
1005 def rsi : AI1<opcod, (outs),
1006 (ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm, iis,
1007 opc, "\t$Rn, $shift",
1008 [(opnode GPR:$Rn, so_reg_imm:$shift)]> {
1013 let Inst{19-16} = Rn;
1014 let Inst{15-12} = 0b0000;
1015 let Inst{11-5} = shift{11-5};
1017 let Inst{3-0} = shift{3-0};
1019 def rsr : AI1<opcod, (outs),
1020 (ins GPR:$Rn, so_reg_reg:$shift), DPSoRegRegFrm, iis,
1021 opc, "\t$Rn, $shift",
1022 [(opnode GPR:$Rn, so_reg_reg:$shift)]> {
1027 let Inst{19-16} = Rn;
1028 let Inst{15-12} = 0b0000;
1029 let Inst{11-8} = shift{11-8};
1031 let Inst{6-5} = shift{6-5};
1033 let Inst{3-0} = shift{3-0};
1039 /// AI_ext_rrot - A unary operation with two forms: one whose operand is a
1040 /// register and one whose operand is a register rotated by 8/16/24.
1041 /// FIXME: Remove the 'r' variant. Its rot_imm is zero.
1042 class AI_ext_rrot<bits<8> opcod, string opc, PatFrag opnode>
1043 : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rm, rot_imm:$rot),
1044 IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
1045 [(set GPR:$Rd, (opnode (rotr GPR:$Rm, rot_imm:$rot)))]>,
1046 Requires<[IsARM, HasV6]> {
1050 let Inst{19-16} = 0b1111;
1051 let Inst{15-12} = Rd;
1052 let Inst{11-10} = rot;
1056 class AI_ext_rrot_np<bits<8> opcod, string opc>
1057 : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rm, rot_imm:$rot),
1058 IIC_iEXTr, opc, "\t$Rd, $Rm$rot", []>,
1059 Requires<[IsARM, HasV6]> {
1061 let Inst{19-16} = 0b1111;
1062 let Inst{11-10} = rot;
1065 /// AI_exta_rrot - A binary operation with two forms: one whose operand is a
1066 /// register and one whose operand is a register rotated by 8/16/24.
1067 class AI_exta_rrot<bits<8> opcod, string opc, PatFrag opnode>
1068 : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, rot_imm:$rot),
1069 IIC_iEXTAr, opc, "\t$Rd, $Rn, $Rm$rot",
1070 [(set GPR:$Rd, (opnode GPR:$Rn, (rotr GPR:$Rm, rot_imm:$rot)))]>,
1071 Requires<[IsARM, HasV6]> {
1076 let Inst{19-16} = Rn;
1077 let Inst{15-12} = Rd;
1078 let Inst{11-10} = rot;
1079 let Inst{9-4} = 0b000111;
1083 class AI_exta_rrot_np<bits<8> opcod, string opc>
1084 : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, rot_imm:$rot),
1085 IIC_iEXTAr, opc, "\t$Rd, $Rn, $Rm$rot", []>,
1086 Requires<[IsARM, HasV6]> {
1089 let Inst{19-16} = Rn;
1090 let Inst{11-10} = rot;
1093 /// AI1_adde_sube_irs - Define instructions and patterns for adde and sube.
1094 multiclass AI1_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
1095 string baseOpc, bit Commutable = 0> {
1096 let Uses = [CPSR] in {
1097 def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
1098 DPFrm, IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
1099 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]>,
1105 let Inst{15-12} = Rd;
1106 let Inst{19-16} = Rn;
1107 let Inst{11-0} = imm;
1109 def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1110 DPFrm, IIC_iALUr, opc, "\t$Rd, $Rn, $Rm",
1111 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]>,
1116 let Inst{11-4} = 0b00000000;
1118 let isCommutable = Commutable;
1120 let Inst{15-12} = Rd;
1121 let Inst{19-16} = Rn;
1123 def rsi : AsI1<opcod, (outs GPR:$Rd),
1124 (ins GPR:$Rn, so_reg_imm:$shift),
1125 DPSoRegImmFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
1126 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_imm:$shift))]>,
1132 let Inst{19-16} = Rn;
1133 let Inst{15-12} = Rd;
1134 let Inst{11-5} = shift{11-5};
1136 let Inst{3-0} = shift{3-0};
1138 def rsr : AsI1<opcod, (outs GPR:$Rd),
1139 (ins GPR:$Rn, so_reg_reg:$shift),
1140 DPSoRegRegFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
1141 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_reg:$shift))]>,
1147 let Inst{19-16} = Rn;
1148 let Inst{15-12} = Rd;
1149 let Inst{11-8} = shift{11-8};
1151 let Inst{6-5} = shift{6-5};
1153 let Inst{3-0} = shift{3-0};
1156 // Assembly aliases for optional destination operand when it's the same
1157 // as the source operand.
1158 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
1159 (!cast<Instruction>(!strconcat(baseOpc, "ri")) GPR:$Rdn, GPR:$Rdn,
1160 so_imm:$imm, pred:$p,
1163 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $Rm"),
1164 (!cast<Instruction>(!strconcat(baseOpc, "rr")) GPR:$Rdn, GPR:$Rdn,
1168 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
1169 (!cast<Instruction>(!strconcat(baseOpc, "rsi")) GPR:$Rdn, GPR:$Rdn,
1170 so_reg_imm:$shift, pred:$p,
1173 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
1174 (!cast<Instruction>(!strconcat(baseOpc, "rsr")) GPR:$Rdn, GPR:$Rdn,
1175 so_reg_reg:$shift, pred:$p,
1180 // Carry setting variants
1181 // NOTE: CPSR def omitted because it will be handled by the custom inserter.
1182 let usesCustomInserter = 1 in {
1183 multiclass AI1_adde_sube_s_irs<PatFrag opnode, bit Commutable = 0> {
1184 def ri : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
1186 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]>;
1187 def rr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1189 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]> {
1190 let isCommutable = Commutable;
1192 def rsi : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_reg_imm:$shift),
1194 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_imm:$shift))]>;
1195 def rsr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_reg_reg:$shift),
1197 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_reg:$shift))]>;
1201 let canFoldAsLoad = 1, isReMaterializable = 1 in {
1202 multiclass AI_ldr1<bit isByte, string opc, InstrItinClass iii,
1203 InstrItinClass iir, PatFrag opnode> {
1204 // Note: We use the complex addrmode_imm12 rather than just an input
1205 // GPR and a constrained immediate so that we can use this to match
1206 // frame index references and avoid matching constant pool references.
1207 def i12: AI2ldst<0b010, 1, isByte, (outs GPR:$Rt), (ins addrmode_imm12:$addr),
1208 AddrMode_i12, LdFrm, iii, opc, "\t$Rt, $addr",
1209 [(set GPR:$Rt, (opnode addrmode_imm12:$addr))]> {
1212 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1213 let Inst{19-16} = addr{16-13}; // Rn
1214 let Inst{15-12} = Rt;
1215 let Inst{11-0} = addr{11-0}; // imm12
1217 def rs : AI2ldst<0b011, 1, isByte, (outs GPR:$Rt), (ins ldst_so_reg:$shift),
1218 AddrModeNone, LdFrm, iir, opc, "\t$Rt, $shift",
1219 [(set GPR:$Rt, (opnode ldst_so_reg:$shift))]> {
1222 let shift{4} = 0; // Inst{4} = 0
1223 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1224 let Inst{19-16} = shift{16-13}; // Rn
1225 let Inst{15-12} = Rt;
1226 let Inst{11-0} = shift{11-0};
1231 multiclass AI_str1<bit isByte, string opc, InstrItinClass iii,
1232 InstrItinClass iir, PatFrag opnode> {
1233 // Note: We use the complex addrmode_imm12 rather than just an input
1234 // GPR and a constrained immediate so that we can use this to match
1235 // frame index references and avoid matching constant pool references.
1236 def i12 : AI2ldst<0b010, 0, isByte, (outs),
1237 (ins GPR:$Rt, addrmode_imm12:$addr),
1238 AddrMode_i12, StFrm, iii, opc, "\t$Rt, $addr",
1239 [(opnode GPR:$Rt, addrmode_imm12:$addr)]> {
1242 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1243 let Inst{19-16} = addr{16-13}; // Rn
1244 let Inst{15-12} = Rt;
1245 let Inst{11-0} = addr{11-0}; // imm12
1247 def rs : AI2ldst<0b011, 0, isByte, (outs), (ins GPR:$Rt, ldst_so_reg:$shift),
1248 AddrModeNone, StFrm, iir, opc, "\t$Rt, $shift",
1249 [(opnode GPR:$Rt, ldst_so_reg:$shift)]> {
1252 let shift{4} = 0; // Inst{4} = 0
1253 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1254 let Inst{19-16} = shift{16-13}; // Rn
1255 let Inst{15-12} = Rt;
1256 let Inst{11-0} = shift{11-0};
1259 //===----------------------------------------------------------------------===//
1261 //===----------------------------------------------------------------------===//
1263 //===----------------------------------------------------------------------===//
1264 // Miscellaneous Instructions.
1267 /// CONSTPOOL_ENTRY - This instruction represents a floating constant pool in
1268 /// the function. The first operand is the ID# for this instruction, the second
1269 /// is the index into the MachineConstantPool that this is, the third is the
1270 /// size in bytes of this constant pool entry.
1271 let neverHasSideEffects = 1, isNotDuplicable = 1 in
1272 def CONSTPOOL_ENTRY :
1273 PseudoInst<(outs), (ins cpinst_operand:$instid, cpinst_operand:$cpidx,
1274 i32imm:$size), NoItinerary, []>;
1276 // FIXME: Marking these as hasSideEffects is necessary to prevent machine DCE
1277 // from removing one half of the matched pairs. That breaks PEI, which assumes
1278 // these will always be in pairs, and asserts if it finds otherwise. Better way?
1279 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
1280 def ADJCALLSTACKUP :
1281 PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2, pred:$p), NoItinerary,
1282 [(ARMcallseq_end timm:$amt1, timm:$amt2)]>;
1284 def ADJCALLSTACKDOWN :
1285 PseudoInst<(outs), (ins i32imm:$amt, pred:$p), NoItinerary,
1286 [(ARMcallseq_start timm:$amt)]>;
1289 def NOP : AI<(outs), (ins), MiscFrm, NoItinerary, "nop", "",
1290 [/* For disassembly only; pattern left blank */]>,
1291 Requires<[IsARM, HasV6T2]> {
1292 let Inst{27-16} = 0b001100100000;
1293 let Inst{15-8} = 0b11110000;
1294 let Inst{7-0} = 0b00000000;
1297 def YIELD : AI<(outs), (ins), MiscFrm, NoItinerary, "yield", "",
1298 [/* For disassembly only; pattern left blank */]>,
1299 Requires<[IsARM, HasV6T2]> {
1300 let Inst{27-16} = 0b001100100000;
1301 let Inst{15-8} = 0b11110000;
1302 let Inst{7-0} = 0b00000001;
1305 def WFE : AI<(outs), (ins), MiscFrm, NoItinerary, "wfe", "",
1306 [/* For disassembly only; pattern left blank */]>,
1307 Requires<[IsARM, HasV6T2]> {
1308 let Inst{27-16} = 0b001100100000;
1309 let Inst{15-8} = 0b11110000;
1310 let Inst{7-0} = 0b00000010;
1313 def WFI : AI<(outs), (ins), MiscFrm, NoItinerary, "wfi", "",
1314 [/* For disassembly only; pattern left blank */]>,
1315 Requires<[IsARM, HasV6T2]> {
1316 let Inst{27-16} = 0b001100100000;
1317 let Inst{15-8} = 0b11110000;
1318 let Inst{7-0} = 0b00000011;
1321 def SEL : AI<(outs GPR:$dst), (ins GPR:$a, GPR:$b), DPFrm, NoItinerary, "sel",
1322 "\t$dst, $a, $b", []>, Requires<[IsARM, HasV6]> {
1327 let Inst{15-12} = Rd;
1328 let Inst{19-16} = Rn;
1329 let Inst{27-20} = 0b01101000;
1330 let Inst{7-4} = 0b1011;
1331 let Inst{11-8} = 0b1111;
1334 def SEV : AI<(outs), (ins), MiscFrm, NoItinerary, "sev", "",
1335 []>, Requires<[IsARM, HasV6T2]> {
1336 let Inst{27-16} = 0b001100100000;
1337 let Inst{15-8} = 0b11110000;
1338 let Inst{7-0} = 0b00000100;
1341 // The i32imm operand $val can be used by a debugger to store more information
1342 // about the breakpoint.
1343 def BKPT : AI<(outs), (ins imm0_65535:$val), MiscFrm, NoItinerary,
1344 "bkpt", "\t$val", []>, Requires<[IsARM]> {
1346 let Inst{3-0} = val{3-0};
1347 let Inst{19-8} = val{15-4};
1348 let Inst{27-20} = 0b00010010;
1349 let Inst{7-4} = 0b0111;
1352 // Change Processor State
1353 // FIXME: We should use InstAlias to handle the optional operands.
1354 class CPS<dag iops, string asm_ops>
1355 : AXI<(outs), iops, MiscFrm, NoItinerary, !strconcat("cps", asm_ops),
1356 []>, Requires<[IsARM]> {
1362 let Inst{31-28} = 0b1111;
1363 let Inst{27-20} = 0b00010000;
1364 let Inst{19-18} = imod;
1365 let Inst{17} = M; // Enabled if mode is set;
1367 let Inst{8-6} = iflags;
1369 let Inst{4-0} = mode;
1373 def CPS3p : CPS<(ins imod_op:$imod, iflags_op:$iflags, imm0_31:$mode),
1374 "$imod\t$iflags, $mode">;
1375 let mode = 0, M = 0 in
1376 def CPS2p : CPS<(ins imod_op:$imod, iflags_op:$iflags), "$imod\t$iflags">;
1378 let imod = 0, iflags = 0, M = 1 in
1379 def CPS1p : CPS<(ins imm0_31:$mode), "\t$mode">;
1381 // Preload signals the memory system of possible future data/instruction access.
1382 // These are for disassembly only.
1383 multiclass APreLoad<bits<1> read, bits<1> data, string opc> {
1385 def i12 : AXI<(outs), (ins addrmode_imm12:$addr), MiscFrm, IIC_Preload,
1386 !strconcat(opc, "\t$addr"),
1387 [(ARMPreload addrmode_imm12:$addr, (i32 read), (i32 data))]> {
1390 let Inst{31-26} = 0b111101;
1391 let Inst{25} = 0; // 0 for immediate form
1392 let Inst{24} = data;
1393 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1394 let Inst{22} = read;
1395 let Inst{21-20} = 0b01;
1396 let Inst{19-16} = addr{16-13}; // Rn
1397 let Inst{15-12} = 0b1111;
1398 let Inst{11-0} = addr{11-0}; // imm12
1401 def rs : AXI<(outs), (ins ldst_so_reg:$shift), MiscFrm, IIC_Preload,
1402 !strconcat(opc, "\t$shift"),
1403 [(ARMPreload ldst_so_reg:$shift, (i32 read), (i32 data))]> {
1405 let Inst{31-26} = 0b111101;
1406 let Inst{25} = 1; // 1 for register form
1407 let Inst{24} = data;
1408 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1409 let Inst{22} = read;
1410 let Inst{21-20} = 0b01;
1411 let Inst{19-16} = shift{16-13}; // Rn
1412 let Inst{15-12} = 0b1111;
1413 let Inst{11-0} = shift{11-0};
1417 defm PLD : APreLoad<1, 1, "pld">, Requires<[IsARM]>;
1418 defm PLDW : APreLoad<0, 1, "pldw">, Requires<[IsARM,HasV7,HasMP]>;
1419 defm PLI : APreLoad<1, 0, "pli">, Requires<[IsARM,HasV7]>;
1421 def SETEND : AXI<(outs), (ins setend_op:$end), MiscFrm, NoItinerary,
1422 "setend\t$end", []>, Requires<[IsARM]> {
1424 let Inst{31-10} = 0b1111000100000001000000;
1429 def DBG : AI<(outs), (ins imm0_15:$opt), MiscFrm, NoItinerary, "dbg", "\t$opt",
1430 []>, Requires<[IsARM, HasV7]> {
1432 let Inst{27-4} = 0b001100100000111100001111;
1433 let Inst{3-0} = opt;
1436 // A5.4 Permanently UNDEFINED instructions.
1437 let isBarrier = 1, isTerminator = 1 in
1438 def TRAP : AXI<(outs), (ins), MiscFrm, NoItinerary,
1441 let Inst = 0xe7ffdefe;
1444 // Address computation and loads and stores in PIC mode.
1445 let isNotDuplicable = 1 in {
1446 def PICADD : ARMPseudoInst<(outs GPR:$dst), (ins GPR:$a, pclabel:$cp, pred:$p),
1448 [(set GPR:$dst, (ARMpic_add GPR:$a, imm:$cp))]>;
1450 let AddedComplexity = 10 in {
1451 def PICLDR : ARMPseudoInst<(outs GPR:$dst), (ins addrmodepc:$addr, pred:$p),
1453 [(set GPR:$dst, (load addrmodepc:$addr))]>;
1455 def PICLDRH : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1457 [(set GPR:$Rt, (zextloadi16 addrmodepc:$addr))]>;
1459 def PICLDRB : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1461 [(set GPR:$Rt, (zextloadi8 addrmodepc:$addr))]>;
1463 def PICLDRSH : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1465 [(set GPR:$Rt, (sextloadi16 addrmodepc:$addr))]>;
1467 def PICLDRSB : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1469 [(set GPR:$Rt, (sextloadi8 addrmodepc:$addr))]>;
1471 let AddedComplexity = 10 in {
1472 def PICSTR : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
1473 4, IIC_iStore_r, [(store GPR:$src, addrmodepc:$addr)]>;
1475 def PICSTRH : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
1476 4, IIC_iStore_bh_r, [(truncstorei16 GPR:$src,
1477 addrmodepc:$addr)]>;
1479 def PICSTRB : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
1480 4, IIC_iStore_bh_r, [(truncstorei8 GPR:$src, addrmodepc:$addr)]>;
1482 } // isNotDuplicable = 1
1485 // LEApcrel - Load a pc-relative address into a register without offending the
1487 let neverHasSideEffects = 1, isReMaterializable = 1 in
1488 // The 'adr' mnemonic encodes differently if the label is before or after
1489 // the instruction. The {24-21} opcode bits are set by the fixup, as we don't
1490 // know until then which form of the instruction will be used.
1491 def ADR : AI1<{0,?,?,0}, (outs GPR:$Rd), (ins adrlabel:$label),
1492 MiscFrm, IIC_iALUi, "adr", "\t$Rd, $label", []> {
1495 let Inst{27-25} = 0b001;
1497 let Inst{19-16} = 0b1111;
1498 let Inst{15-12} = Rd;
1499 let Inst{11-0} = label;
1501 def LEApcrel : ARMPseudoInst<(outs GPR:$Rd), (ins i32imm:$label, pred:$p),
1504 def LEApcrelJT : ARMPseudoInst<(outs GPR:$Rd),
1505 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1508 //===----------------------------------------------------------------------===//
1509 // Control Flow Instructions.
1512 let isReturn = 1, isTerminator = 1, isBarrier = 1 in {
1514 def BX_RET : AI<(outs), (ins), BrMiscFrm, IIC_Br,
1515 "bx", "\tlr", [(ARMretflag)]>,
1516 Requires<[IsARM, HasV4T]> {
1517 let Inst{27-0} = 0b0001001011111111111100011110;
1521 def MOVPCLR : AI<(outs), (ins), BrMiscFrm, IIC_Br,
1522 "mov", "\tpc, lr", [(ARMretflag)]>,
1523 Requires<[IsARM, NoV4T]> {
1524 let Inst{27-0} = 0b0001101000001111000000001110;
1528 // Indirect branches
1529 let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
1531 def BX : AXI<(outs), (ins GPR:$dst), BrMiscFrm, IIC_Br, "bx\t$dst",
1532 [(brind GPR:$dst)]>,
1533 Requires<[IsARM, HasV4T]> {
1535 let Inst{31-4} = 0b1110000100101111111111110001;
1536 let Inst{3-0} = dst;
1539 def BX_pred : AI<(outs), (ins GPR:$dst), BrMiscFrm, IIC_Br,
1540 "bx", "\t$dst", [/* pattern left blank */]>,
1541 Requires<[IsARM, HasV4T]> {
1543 let Inst{27-4} = 0b000100101111111111110001;
1544 let Inst{3-0} = dst;
1548 // All calls clobber the non-callee saved registers. SP is marked as
1549 // a use to prevent stack-pointer assignments that appear immediately
1550 // before calls from potentially appearing dead.
1552 // On non-Darwin platforms R9 is callee-saved.
1553 // FIXME: Do we really need a non-predicated version? If so, it should
1554 // at least be a pseudo instruction expanding to the predicated version
1555 // at MC lowering time.
1556 Defs = [R0, R1, R2, R3, R12, LR, QQQQ0, QQQQ2, QQQQ3, CPSR, FPSCR],
1558 def BL : ABXI<0b1011, (outs), (ins bl_target:$func, variable_ops),
1559 IIC_Br, "bl\t$func",
1560 [(ARMcall tglobaladdr:$func)]>,
1561 Requires<[IsARM, IsNotDarwin]> {
1562 let Inst{31-28} = 0b1110;
1564 let Inst{23-0} = func;
1567 def BL_pred : ABI<0b1011, (outs), (ins bl_target:$func, variable_ops),
1568 IIC_Br, "bl", "\t$func",
1569 [(ARMcall_pred tglobaladdr:$func)]>,
1570 Requires<[IsARM, IsNotDarwin]> {
1572 let Inst{23-0} = func;
1576 def BLX : AXI<(outs), (ins GPR:$func, variable_ops), BrMiscFrm,
1577 IIC_Br, "blx\t$func",
1578 [(ARMcall GPR:$func)]>,
1579 Requires<[IsARM, HasV5T, IsNotDarwin]> {
1581 let Inst{31-4} = 0b1110000100101111111111110011;
1582 let Inst{3-0} = func;
1585 def BLX_pred : AI<(outs), (ins GPR:$func, variable_ops), BrMiscFrm,
1586 IIC_Br, "blx", "\t$func",
1587 [(ARMcall_pred GPR:$func)]>,
1588 Requires<[IsARM, HasV5T, IsNotDarwin]> {
1590 let Inst{27-4} = 0b000100101111111111110011;
1591 let Inst{3-0} = func;
1595 // Note: Restrict $func to the tGPR regclass to prevent it being in LR.
1596 def BX_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
1597 8, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
1598 Requires<[IsARM, HasV4T, IsNotDarwin]>;
1601 def BMOVPCRX_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
1602 8, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
1603 Requires<[IsARM, NoV4T, IsNotDarwin]>;
1607 // On Darwin R9 is call-clobbered.
1608 // R7 is marked as a use to prevent frame-pointer assignments from being
1609 // moved above / below calls.
1610 Defs = [R0, R1, R2, R3, R9, R12, LR, QQQQ0, QQQQ2, QQQQ3, CPSR, FPSCR],
1611 Uses = [R7, SP] in {
1612 def BLr9 : ARMPseudoExpand<(outs), (ins bl_target:$func, variable_ops),
1614 [(ARMcall tglobaladdr:$func)], (BL bl_target:$func)>,
1615 Requires<[IsARM, IsDarwin]>;
1617 def BLr9_pred : ARMPseudoExpand<(outs),
1618 (ins bl_target:$func, pred:$p, variable_ops),
1620 [(ARMcall_pred tglobaladdr:$func)],
1621 (BL_pred bl_target:$func, pred:$p)>,
1622 Requires<[IsARM, IsDarwin]>;
1625 def BLXr9 : ARMPseudoExpand<(outs), (ins GPR:$func, variable_ops),
1627 [(ARMcall GPR:$func)],
1629 Requires<[IsARM, HasV5T, IsDarwin]>;
1631 def BLXr9_pred: ARMPseudoExpand<(outs), (ins GPR:$func, pred:$p,variable_ops),
1633 [(ARMcall_pred GPR:$func)],
1634 (BLX_pred GPR:$func, pred:$p)>,
1635 Requires<[IsARM, HasV5T, IsDarwin]>;
1638 // Note: Restrict $func to the tGPR regclass to prevent it being in LR.
1639 def BXr9_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
1640 8, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
1641 Requires<[IsARM, HasV4T, IsDarwin]>;
1644 def BMOVPCRXr9_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
1645 8, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
1646 Requires<[IsARM, NoV4T, IsDarwin]>;
1649 let isBranch = 1, isTerminator = 1 in {
1650 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
1651 // a two-value operand where a dag node expects two operands. :(
1652 def Bcc : ABI<0b1010, (outs), (ins br_target:$target),
1653 IIC_Br, "b", "\t$target",
1654 [/*(ARMbrcond bb:$target, imm:$cc, CCR:$ccr)*/]> {
1656 let Inst{23-0} = target;
1659 let isBarrier = 1 in {
1660 // B is "predicable" since it's just a Bcc with an 'always' condition.
1661 let isPredicable = 1 in
1662 // FIXME: We shouldn't need this pseudo at all. Just using Bcc directly
1663 // should be sufficient.
1664 // FIXME: Is B really a Barrier? That doesn't seem right.
1665 def B : ARMPseudoExpand<(outs), (ins br_target:$target), 4, IIC_Br,
1666 [(br bb:$target)], (Bcc br_target:$target, (ops 14, zero_reg))>;
1668 let isNotDuplicable = 1, isIndirectBranch = 1 in {
1669 def BR_JTr : ARMPseudoInst<(outs),
1670 (ins GPR:$target, i32imm:$jt, i32imm:$id),
1672 [(ARMbrjt GPR:$target, tjumptable:$jt, imm:$id)]>;
1673 // FIXME: This shouldn't use the generic "addrmode2," but rather be split
1674 // into i12 and rs suffixed versions.
1675 def BR_JTm : ARMPseudoInst<(outs),
1676 (ins addrmode2:$target, i32imm:$jt, i32imm:$id),
1678 [(ARMbrjt (i32 (load addrmode2:$target)), tjumptable:$jt,
1680 def BR_JTadd : ARMPseudoInst<(outs),
1681 (ins GPR:$target, GPR:$idx, i32imm:$jt, i32imm:$id),
1683 [(ARMbrjt (add GPR:$target, GPR:$idx), tjumptable:$jt,
1685 } // isNotDuplicable = 1, isIndirectBranch = 1
1691 def BLXi : AXI<(outs), (ins br_target:$target), BrMiscFrm, NoItinerary,
1692 "blx\t$target", []>,
1693 Requires<[IsARM, HasV5T]> {
1694 let Inst{31-25} = 0b1111101;
1696 let Inst{23-0} = target{24-1};
1697 let Inst{24} = target{0};
1700 // Branch and Exchange Jazelle
1701 def BXJ : ABI<0b0001, (outs), (ins GPR:$func), NoItinerary, "bxj", "\t$func",
1702 [/* pattern left blank */]> {
1704 let Inst{23-20} = 0b0010;
1705 let Inst{19-8} = 0xfff;
1706 let Inst{7-4} = 0b0010;
1707 let Inst{3-0} = func;
1712 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
1714 let Defs = [R0, R1, R2, R3, R9, R12, QQQQ0, QQQQ2, QQQQ3, PC],
1716 def TCRETURNdi : PseudoInst<(outs), (ins i32imm:$dst, variable_ops),
1717 IIC_Br, []>, Requires<[IsDarwin]>;
1719 def TCRETURNri : PseudoInst<(outs), (ins tcGPR:$dst, variable_ops),
1720 IIC_Br, []>, Requires<[IsDarwin]>;
1722 def TAILJMPd : ARMPseudoExpand<(outs), (ins br_target:$dst, variable_ops),
1724 (Bcc br_target:$dst, (ops 14, zero_reg))>,
1725 Requires<[IsARM, IsDarwin]>;
1727 def TAILJMPr : ARMPseudoExpand<(outs), (ins tcGPR:$dst, variable_ops),
1730 Requires<[IsARM, IsDarwin]>;
1734 // Non-Darwin versions (the difference is R9).
1735 let Defs = [R0, R1, R2, R3, R12, QQQQ0, QQQQ2, QQQQ3, PC],
1737 def TCRETURNdiND : PseudoInst<(outs), (ins i32imm:$dst, variable_ops),
1738 IIC_Br, []>, Requires<[IsNotDarwin]>;
1740 def TCRETURNriND : PseudoInst<(outs), (ins tcGPR:$dst, variable_ops),
1741 IIC_Br, []>, Requires<[IsNotDarwin]>;
1743 def TAILJMPdND : ARMPseudoExpand<(outs), (ins brtarget:$dst, variable_ops),
1745 (Bcc br_target:$dst, (ops 14, zero_reg))>,
1746 Requires<[IsARM, IsNotDarwin]>;
1748 def TAILJMPrND : ARMPseudoExpand<(outs), (ins tcGPR:$dst, variable_ops),
1751 Requires<[IsARM, IsNotDarwin]>;
1759 // Secure Monitor Call is a system instruction -- for disassembly only
1760 def SMC : ABI<0b0001, (outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
1763 let Inst{23-4} = 0b01100000000000000111;
1764 let Inst{3-0} = opt;
1767 // Supervisor Call (Software Interrupt)
1768 let isCall = 1, Uses = [SP] in {
1769 def SVC : ABI<0b1111, (outs), (ins imm24b:$svc), IIC_Br, "svc", "\t$svc", []> {
1771 let Inst{23-0} = svc;
1775 // Store Return State
1776 class SRSI<bit wb, string asm>
1777 : XI<(outs), (ins imm0_31:$mode), AddrModeNone, 4, IndexModeNone, BrFrm,
1778 NoItinerary, asm, "", []> {
1780 let Inst{31-28} = 0b1111;
1781 let Inst{27-25} = 0b100;
1785 let Inst{19-16} = 0b1101; // SP
1786 let Inst{15-5} = 0b00000101000;
1787 let Inst{4-0} = mode;
1790 def SRSDA : SRSI<0, "srsda\tsp, $mode"> {
1791 let Inst{24-23} = 0;
1793 def SRSDA_UPD : SRSI<1, "srsda\tsp!, $mode"> {
1794 let Inst{24-23} = 0;
1796 def SRSDB : SRSI<0, "srsdb\tsp, $mode"> {
1797 let Inst{24-23} = 0b10;
1799 def SRSDB_UPD : SRSI<1, "srsdb\tsp!, $mode"> {
1800 let Inst{24-23} = 0b10;
1802 def SRSIA : SRSI<0, "srsia\tsp, $mode"> {
1803 let Inst{24-23} = 0b01;
1805 def SRSIA_UPD : SRSI<1, "srsia\tsp!, $mode"> {
1806 let Inst{24-23} = 0b01;
1808 def SRSIB : SRSI<0, "srsib\tsp, $mode"> {
1809 let Inst{24-23} = 0b11;
1811 def SRSIB_UPD : SRSI<1, "srsib\tsp!, $mode"> {
1812 let Inst{24-23} = 0b11;
1815 // Return From Exception
1816 class RFEI<bit wb, string asm>
1817 : XI<(outs), (ins GPR:$Rn), AddrModeNone, 4, IndexModeNone, BrFrm,
1818 NoItinerary, asm, "", []> {
1820 let Inst{31-28} = 0b1111;
1821 let Inst{27-25} = 0b100;
1825 let Inst{19-16} = Rn;
1826 let Inst{15-0} = 0xa00;
1829 def RFEDA : RFEI<0, "rfeda\t$Rn"> {
1830 let Inst{24-23} = 0;
1832 def RFEDA_UPD : RFEI<1, "rfeda\t$Rn!"> {
1833 let Inst{24-23} = 0;
1835 def RFEDB : RFEI<0, "rfedb\t$Rn"> {
1836 let Inst{24-23} = 0b10;
1838 def RFEDB_UPD : RFEI<1, "rfedb\t$Rn!"> {
1839 let Inst{24-23} = 0b10;
1841 def RFEIA : RFEI<0, "rfeia\t$Rn"> {
1842 let Inst{24-23} = 0b01;
1844 def RFEIA_UPD : RFEI<1, "rfeia\t$Rn!"> {
1845 let Inst{24-23} = 0b01;
1847 def RFEIB : RFEI<0, "rfeib\t$Rn"> {
1848 let Inst{24-23} = 0b11;
1850 def RFEIB_UPD : RFEI<1, "rfeib\t$Rn!"> {
1851 let Inst{24-23} = 0b11;
1854 //===----------------------------------------------------------------------===//
1855 // Load / store Instructions.
1861 defm LDR : AI_ldr1<0, "ldr", IIC_iLoad_r, IIC_iLoad_si,
1862 UnOpFrag<(load node:$Src)>>;
1863 defm LDRB : AI_ldr1<1, "ldrb", IIC_iLoad_bh_r, IIC_iLoad_bh_si,
1864 UnOpFrag<(zextloadi8 node:$Src)>>;
1865 defm STR : AI_str1<0, "str", IIC_iStore_r, IIC_iStore_si,
1866 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1867 defm STRB : AI_str1<1, "strb", IIC_iStore_bh_r, IIC_iStore_bh_si,
1868 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1870 // Special LDR for loads from non-pc-relative constpools.
1871 let canFoldAsLoad = 1, mayLoad = 1, neverHasSideEffects = 1,
1872 isReMaterializable = 1, isCodeGenOnly = 1 in
1873 def LDRcp : AI2ldst<0b010, 1, 0, (outs GPR:$Rt), (ins addrmode_imm12:$addr),
1874 AddrMode_i12, LdFrm, IIC_iLoad_r, "ldr", "\t$Rt, $addr",
1878 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1879 let Inst{19-16} = 0b1111;
1880 let Inst{15-12} = Rt;
1881 let Inst{11-0} = addr{11-0}; // imm12
1884 // Loads with zero extension
1885 def LDRH : AI3ld<0b1011, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
1886 IIC_iLoad_bh_r, "ldrh", "\t$Rt, $addr",
1887 [(set GPR:$Rt, (zextloadi16 addrmode3:$addr))]>;
1889 // Loads with sign extension
1890 def LDRSH : AI3ld<0b1111, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
1891 IIC_iLoad_bh_r, "ldrsh", "\t$Rt, $addr",
1892 [(set GPR:$Rt, (sextloadi16 addrmode3:$addr))]>;
1894 def LDRSB : AI3ld<0b1101, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
1895 IIC_iLoad_bh_r, "ldrsb", "\t$Rt, $addr",
1896 [(set GPR:$Rt, (sextloadi8 addrmode3:$addr))]>;
1898 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1900 def LDRD : AI3ld<0b1101, 0, (outs GPR:$Rd, GPR:$dst2),
1901 (ins addrmode3:$addr), LdMiscFrm,
1902 IIC_iLoad_d_r, "ldrd", "\t$Rd, $dst2, $addr",
1903 []>, Requires<[IsARM, HasV5TE]>;
1907 multiclass AI2_ldridx<bit isByte, string opc, InstrItinClass itin> {
1908 def _PRE : AI2ldstidx<1, isByte, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1909 (ins addrmode2:$addr), IndexModePre, LdFrm, itin,
1910 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
1916 let Inst{25} = addr{13};
1917 let Inst{23} = addr{12};
1918 let Inst{19-16} = addr{17-14};
1919 let Inst{11-0} = addr{11-0};
1920 let AsmMatchConverter = "cvtLdWriteBackRegAddrMode2";
1923 def _POST_REG : AI2ldstidx<1, isByte, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1924 (ins addr_offset_none:$addr, am2offset_reg:$offset),
1925 IndexModePost, LdFrm, itin,
1926 opc, "\t$Rt, $addr, $offset",
1927 "$addr.base = $Rn_wb", []> {
1933 let Inst{23} = offset{12};
1934 let Inst{19-16} = addr;
1935 let Inst{11-0} = offset{11-0};
1938 def _POST_IMM : AI2ldstidx<1, isByte, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1939 (ins addr_offset_none:$addr, am2offset_imm:$offset),
1940 IndexModePost, LdFrm, itin,
1941 opc, "\t$Rt, $addr, $offset",
1942 "$addr.base = $Rn_wb", []> {
1948 let Inst{23} = offset{12};
1949 let Inst{19-16} = addr;
1950 let Inst{11-0} = offset{11-0};
1954 let mayLoad = 1, neverHasSideEffects = 1 in {
1955 defm LDR : AI2_ldridx<0, "ldr", IIC_iLoad_ru>;
1956 defm LDRB : AI2_ldridx<1, "ldrb", IIC_iLoad_bh_ru>;
1959 multiclass AI3_ldridx<bits<4> op, bit op20, string opc, InstrItinClass itin> {
1960 def _PRE : AI3ldstidx<op, op20, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1961 (ins addrmode3:$addr), IndexModePre,
1963 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
1965 let Inst{23} = addr{8}; // U bit
1966 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
1967 let Inst{19-16} = addr{12-9}; // Rn
1968 let Inst{11-8} = addr{7-4}; // imm7_4/zero
1969 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
1971 def _POST : AI3ldstidx<op, op20, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1972 (ins GPR:$Rn, am3offset:$offset), IndexModePost,
1974 opc, "\t$Rt, [$Rn], $offset", "$Rn = $Rn_wb", []> {
1977 let Inst{23} = offset{8}; // U bit
1978 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
1979 let Inst{19-16} = Rn;
1980 let Inst{11-8} = offset{7-4}; // imm7_4/zero
1981 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
1985 let mayLoad = 1, neverHasSideEffects = 1 in {
1986 defm LDRH : AI3_ldridx<0b1011, 1, "ldrh", IIC_iLoad_bh_ru>;
1987 defm LDRSH : AI3_ldridx<0b1111, 1, "ldrsh", IIC_iLoad_bh_ru>;
1988 defm LDRSB : AI3_ldridx<0b1101, 1, "ldrsb", IIC_iLoad_bh_ru>;
1989 let hasExtraDefRegAllocReq = 1 in {
1990 def LDRD_PRE : AI3ldstidx<0b1101, 0, 1, 1, (outs GPR:$Rt, GPR:$Rt2, GPR:$Rn_wb),
1991 (ins addrmode3:$addr), IndexModePre,
1992 LdMiscFrm, IIC_iLoad_d_ru,
1993 "ldrd", "\t$Rt, $Rt2, $addr!",
1994 "$addr.base = $Rn_wb", []> {
1996 let Inst{23} = addr{8}; // U bit
1997 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
1998 let Inst{19-16} = addr{12-9}; // Rn
1999 let Inst{11-8} = addr{7-4}; // imm7_4/zero
2000 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
2001 let DecoderMethod = "DecodeAddrMode3Instruction";
2003 def LDRD_POST: AI3ldstidx<0b1101, 0, 1, 0, (outs GPR:$Rt, GPR:$Rt2, GPR:$Rn_wb),
2004 (ins GPR:$Rn, am3offset:$offset), IndexModePost,
2005 LdMiscFrm, IIC_iLoad_d_ru,
2006 "ldrd", "\t$Rt, $Rt2, [$Rn], $offset",
2007 "$Rn = $Rn_wb", []> {
2010 let Inst{23} = offset{8}; // U bit
2011 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
2012 let Inst{19-16} = Rn;
2013 let Inst{11-8} = offset{7-4}; // imm7_4/zero
2014 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
2015 let DecoderMethod = "DecodeAddrMode3Instruction";
2017 } // hasExtraDefRegAllocReq = 1
2018 } // mayLoad = 1, neverHasSideEffects = 1
2020 // LDRT, LDRBT, LDRSBT, LDRHT, LDRSHT are for disassembly only.
2021 let mayLoad = 1, neverHasSideEffects = 1 in {
2022 def LDRT : AI2ldstidx<1, 0, 0, (outs GPR:$Rt, GPR:$base_wb),
2023 (ins addrmode2:$addr), IndexModePost, LdFrm, IIC_iLoad_ru,
2024 "ldrt", "\t$Rt, $addr", "$addr.base = $base_wb", []> {
2026 // {13} 1 == Rm, 0 == imm12
2030 let Inst{25} = addr{13};
2031 let Inst{23} = addr{12};
2032 let Inst{21} = 1; // overwrite
2033 let Inst{19-16} = addr{17-14};
2034 let Inst{11-0} = addr{11-0};
2035 let AsmMatchConverter = "cvtLdWriteBackRegAddrMode2";
2038 def LDRBT_POST_REG : AI2ldstidx<1, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
2039 (ins addr_offset_none:$addr, am2offset_reg:$offset),
2040 IndexModePost, LdFrm, IIC_iLoad_bh_ru,
2041 "ldrbt", "\t$Rt, $addr, $offset",
2042 "$addr.base = $Rn_wb", []> {
2048 let Inst{23} = offset{12};
2049 let Inst{21} = 1; // overwrite
2050 let Inst{19-16} = addr;
2051 let Inst{11-0} = offset{11-0};
2054 def LDRBT_POST_IMM : AI2ldstidx<1, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
2055 (ins addr_offset_none:$addr, am2offset_imm:$offset),
2056 IndexModePost, LdFrm, IIC_iLoad_bh_ru,
2057 "ldrbt", "\t$Rt, $addr, $offset",
2058 "$addr.base = $Rn_wb", []> {
2064 let Inst{23} = offset{12};
2065 let Inst{21} = 1; // overwrite
2066 let Inst{19-16} = addr;
2067 let Inst{11-0} = offset{11-0};
2070 multiclass AI3ldrT<bits<4> op, string opc> {
2071 def i : AI3ldstidxT<op, 1, (outs GPR:$Rt, GPR:$base_wb),
2072 (ins addr_offset_none:$addr, postidx_imm8:$offset),
2073 IndexModePost, LdMiscFrm, IIC_iLoad_bh_ru, opc,
2074 "\t$Rt, $addr, $offset", "$addr.base = $base_wb", []> {
2076 let Inst{23} = offset{8};
2078 let Inst{11-8} = offset{7-4};
2079 let Inst{3-0} = offset{3-0};
2080 let AsmMatchConverter = "cvtLdExtTWriteBackImm";
2082 def r : AI3ldstidxT<op, 1, (outs GPR:$Rt, GPR:$base_wb),
2083 (ins addr_offset_none:$addr, postidx_reg:$Rm),
2084 IndexModePost, LdMiscFrm, IIC_iLoad_bh_ru, opc,
2085 "\t$Rt, $addr, $Rm", "$addr.base = $base_wb", []> {
2087 let Inst{23} = Rm{4};
2090 let Inst{3-0} = Rm{3-0};
2091 let AsmMatchConverter = "cvtLdExtTWriteBackReg";
2095 defm LDRSBT : AI3ldrT<0b1101, "ldrsbt">;
2096 defm LDRHT : AI3ldrT<0b1011, "ldrht">;
2097 defm LDRSHT : AI3ldrT<0b1111, "ldrsht">;
2102 // Stores with truncate
2103 def STRH : AI3str<0b1011, (outs), (ins GPR:$Rt, addrmode3:$addr), StMiscFrm,
2104 IIC_iStore_bh_r, "strh", "\t$Rt, $addr",
2105 [(truncstorei16 GPR:$Rt, addrmode3:$addr)]>;
2108 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
2109 def STRD : AI3str<0b1111, (outs), (ins GPR:$Rt, GPR:$src2, addrmode3:$addr),
2110 StMiscFrm, IIC_iStore_d_r,
2111 "strd", "\t$Rt, $src2, $addr", []>,
2112 Requires<[IsARM, HasV5TE]> {
2117 multiclass AI2_stridx<bit isByte, string opc, InstrItinClass itin> {
2118 def _PRE_IMM : AI2ldstidx<0, isByte, 1, (outs GPR:$Rn_wb),
2119 (ins GPR:$Rt, addrmode_imm12:$addr), IndexModePre,
2121 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
2124 let Inst{23} = addr{12}; // U (add = ('U' == 1))
2125 let Inst{19-16} = addr{16-13}; // Rn
2126 let Inst{11-0} = addr{11-0}; // imm12
2127 let AsmMatchConverter = "cvtStWriteBackRegAddrMode2";
2130 def _PRE_REG : AI2ldstidx<0, isByte, 1, (outs GPR:$Rn_wb),
2131 (ins GPR:$Rt, addrmode2:$addr), IndexModePre, StFrm, itin,
2132 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
2135 let Inst{23} = addr{12}; // U (add = ('U' == 1))
2136 let Inst{19-16} = addr{16-13}; // Rn
2137 let Inst{11-0} = addr{11-0};
2138 let Inst{4} = 0; // Inst{4} = 0
2139 let AsmMatchConverter = "cvtStWriteBackRegAddrMode2";
2141 def _POST_REG : AI2ldstidx<0, isByte, 0, (outs GPR:$Rn_wb),
2142 (ins GPR:$Rt, addr_offset_none:$addr, am2offset_reg:$offset),
2143 IndexModePost, StFrm, itin,
2144 opc, "\t$Rt, $addr, $offset",
2145 "$addr.base = $Rn_wb", []> {
2151 let Inst{23} = offset{12};
2152 let Inst{19-16} = addr;
2153 let Inst{11-0} = offset{11-0};
2156 def _POST_IMM : AI2ldstidx<0, isByte, 0, (outs GPR:$Rn_wb),
2157 (ins GPR:$Rt, addr_offset_none:$addr, am2offset_imm:$offset),
2158 IndexModePost, StFrm, itin,
2159 opc, "\t$Rt, $addr, $offset",
2160 "$addr.base = $Rn_wb", []> {
2166 let Inst{23} = offset{12};
2167 let Inst{19-16} = addr;
2168 let Inst{11-0} = offset{11-0};
2172 let mayStore = 1, neverHasSideEffects = 1 in {
2173 defm STR : AI2_stridx<0, "str", IIC_iStore_ru>;
2174 defm STRB : AI2_stridx<1, "strb", IIC_iStore_bh_ru>;
2177 def : ARMPat<(post_store GPR:$Rt, addr_offset_none:$addr,
2178 am2offset_reg:$offset),
2179 (STR_POST_REG GPR:$Rt, addr_offset_none:$addr,
2180 am2offset_reg:$offset)>;
2181 def : ARMPat<(post_store GPR:$Rt, addr_offset_none:$addr,
2182 am2offset_imm:$offset),
2183 (STR_POST_IMM GPR:$Rt, addr_offset_none:$addr,
2184 am2offset_imm:$offset)>;
2185 def : ARMPat<(post_truncsti8 GPR:$Rt, addr_offset_none:$addr,
2186 am2offset_reg:$offset),
2187 (STRB_POST_REG GPR:$Rt, addr_offset_none:$addr,
2188 am2offset_reg:$offset)>;
2189 def : ARMPat<(post_truncsti8 GPR:$Rt, addr_offset_none:$addr,
2190 am2offset_imm:$offset),
2191 (STRB_POST_IMM GPR:$Rt, addr_offset_none:$addr,
2192 am2offset_imm:$offset)>;
2194 // Pseudo-instructions for pattern matching the pre-indexed stores. We can't
2195 // put the patterns on the instruction definitions directly as ISel wants
2196 // the address base and offset to be separate operands, not a single
2197 // complex operand like we represent the instructions themselves. The
2198 // pseudos map between the two.
2199 let usesCustomInserter = 1,
2200 Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in {
2201 def STRi_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
2202 (ins GPR:$Rt, GPR:$Rn, am2offset_imm:$offset, pred:$p),
2205 (pre_store GPR:$Rt, GPR:$Rn, am2offset_imm:$offset))]>;
2206 def STRr_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
2207 (ins GPR:$Rt, GPR:$Rn, am2offset_reg:$offset, pred:$p),
2210 (pre_store GPR:$Rt, GPR:$Rn, am2offset_reg:$offset))]>;
2211 def STRBi_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
2212 (ins GPR:$Rt, GPR:$Rn, am2offset_imm:$offset, pred:$p),
2215 (pre_truncsti8 GPR:$Rt, GPR:$Rn, am2offset_imm:$offset))]>;
2216 def STRBr_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
2217 (ins GPR:$Rt, GPR:$Rn, am2offset_reg:$offset, pred:$p),
2220 (pre_truncsti8 GPR:$Rt, GPR:$Rn, am2offset_reg:$offset))]>;
2223 def STRH_PRE : AI3stridx<0b1011, 0, 1, (outs GPR:$Rn_wb),
2224 (ins GPR:$Rt, GPR:$Rn, am3offset:$offset),
2225 IndexModePre, StMiscFrm, IIC_iStore_ru,
2226 "strh", "\t$Rt, [$Rn, $offset]!",
2227 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
2229 (pre_truncsti16 GPR:$Rt, GPR:$Rn, am3offset:$offset))]>;
2231 def STRH_POST: AI3stridx<0b1011, 0, 0, (outs GPR:$Rn_wb),
2232 (ins GPR:$Rt, GPR:$Rn, am3offset:$offset),
2233 IndexModePost, StMiscFrm, IIC_iStore_bh_ru,
2234 "strh", "\t$Rt, [$Rn], $offset",
2235 "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
2236 [(set GPR:$Rn_wb, (post_truncsti16 GPR:$Rt,
2237 GPR:$Rn, am3offset:$offset))]>;
2239 // For disassembly only
2240 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in {
2241 def STRD_PRE : AI3stdpr<(outs GPR:$base_wb),
2242 (ins GPR:$src1, GPR:$src2, GPR:$base, am3offset:$offset),
2243 StMiscFrm, IIC_iStore_d_ru,
2244 "strd", "\t$src1, $src2, [$base, $offset]!",
2245 "$base = $base_wb", []> {
2249 let Inst{23} = offset{8}; // U bit
2250 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
2251 let Inst{19-16} = base;
2252 let Inst{15-12} = src1;
2253 let Inst{11-8} = offset{7-4};
2254 let Inst{3-0} = offset{3-0};
2256 let DecoderMethod = "DecodeAddrMode3Instruction";
2259 // For disassembly only
2260 def STRD_POST: AI3stdpo<(outs GPR:$base_wb),
2261 (ins GPR:$src1, GPR:$src2, GPR:$base, am3offset:$offset),
2262 StMiscFrm, IIC_iStore_d_ru,
2263 "strd", "\t$src1, $src2, [$base], $offset",
2264 "$base = $base_wb", []> {
2268 let Inst{23} = offset{8}; // U bit
2269 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
2270 let Inst{19-16} = base;
2271 let Inst{15-12} = src1;
2272 let Inst{11-8} = offset{7-4};
2273 let Inst{3-0} = offset{3-0};
2275 let DecoderMethod = "DecodeAddrMode3Instruction";
2277 } // mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1
2279 // STRT, STRBT, and STRHT
2281 def STRTr : AI2stridxT<0, 0, (outs GPR:$Rn_wb),
2282 (ins GPR:$Rt, ldst_so_reg:$addr),
2283 IndexModePost, StFrm, IIC_iStore_ru,
2284 "strt", "\t$Rt, $addr", "$addr.base = $Rn_wb",
2285 [/* For disassembly only; pattern left blank */]> {
2287 let Inst{21} = 1; // overwrite
2289 let AsmMatchConverter = "cvtStWriteBackRegAddrMode2";
2292 def STRTi : AI2stridxT<0, 0, (outs GPR:$Rn_wb),
2293 (ins GPR:$Rt, addrmode_imm12:$addr),
2294 IndexModePost, StFrm, IIC_iStore_ru,
2295 "strt", "\t$Rt, $addr", "$addr.base = $Rn_wb",
2296 [/* For disassembly only; pattern left blank */]> {
2298 let Inst{21} = 1; // overwrite
2299 let AsmMatchConverter = "cvtStWriteBackRegAddrMode2";
2303 def STRBTr : AI2stridxT<1, 0, (outs GPR:$Rn_wb),
2304 (ins GPR:$Rt, ldst_so_reg:$addr),
2305 IndexModePost, StFrm, IIC_iStore_bh_ru,
2306 "strbt", "\t$Rt, $addr", "$addr.base = $Rn_wb",
2307 [/* For disassembly only; pattern left blank */]> {
2309 let Inst{21} = 1; // overwrite
2311 let AsmMatchConverter = "cvtStWriteBackRegAddrMode2";
2314 def STRBTi : AI2stridxT<1, 0, (outs GPR:$Rn_wb),
2315 (ins GPR:$Rt, addrmode_imm12:$addr),
2316 IndexModePost, StFrm, IIC_iStore_bh_ru,
2317 "strbt", "\t$Rt, $addr", "$addr.base = $Rn_wb",
2318 [/* For disassembly only; pattern left blank */]> {
2320 let Inst{21} = 1; // overwrite
2321 let AsmMatchConverter = "cvtStWriteBackRegAddrMode2";
2324 multiclass AI3strT<bits<4> op, string opc> {
2325 def i : AI3ldstidxT<op, 0, (outs GPR:$base_wb),
2326 (ins GPR:$Rt, addr_offset_none:$addr, postidx_imm8:$offset),
2327 IndexModePost, StMiscFrm, IIC_iStore_bh_ru, opc,
2328 "\t$Rt, $addr, $offset", "$addr.base = $base_wb", []> {
2330 let Inst{23} = offset{8};
2332 let Inst{11-8} = offset{7-4};
2333 let Inst{3-0} = offset{3-0};
2334 let AsmMatchConverter = "cvtStExtTWriteBackImm";
2336 def r : AI3ldstidxT<op, 0, (outs GPR:$base_wb),
2337 (ins GPR:$Rt, addr_offset_none:$addr, postidx_reg:$Rm),
2338 IndexModePost, StMiscFrm, IIC_iStore_bh_ru, opc,
2339 "\t$Rt, $addr, $Rm", "$addr.base = $base_wb", []> {
2341 let Inst{23} = Rm{4};
2344 let Inst{3-0} = Rm{3-0};
2345 let AsmMatchConverter = "cvtStExtTWriteBackReg";
2350 defm STRHT : AI3strT<0b1011, "strht">;
2353 //===----------------------------------------------------------------------===//
2354 // Load / store multiple Instructions.
2357 multiclass arm_ldst_mult<string asm, bit L_bit, Format f,
2358 InstrItinClass itin, InstrItinClass itin_upd> {
2359 // IA is the default, so no need for an explicit suffix on the
2360 // mnemonic here. Without it is the cannonical spelling.
2362 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2363 IndexModeNone, f, itin,
2364 !strconcat(asm, "${p}\t$Rn, $regs"), "", []> {
2365 let Inst{24-23} = 0b01; // Increment After
2366 let Inst{21} = 0; // No writeback
2367 let Inst{20} = L_bit;
2370 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2371 IndexModeUpd, f, itin_upd,
2372 !strconcat(asm, "${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
2373 let Inst{24-23} = 0b01; // Increment After
2374 let Inst{21} = 1; // Writeback
2375 let Inst{20} = L_bit;
2378 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2379 IndexModeNone, f, itin,
2380 !strconcat(asm, "da${p}\t$Rn, $regs"), "", []> {
2381 let Inst{24-23} = 0b00; // Decrement After
2382 let Inst{21} = 0; // No writeback
2383 let Inst{20} = L_bit;
2386 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2387 IndexModeUpd, f, itin_upd,
2388 !strconcat(asm, "da${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
2389 let Inst{24-23} = 0b00; // Decrement After
2390 let Inst{21} = 1; // Writeback
2391 let Inst{20} = L_bit;
2394 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2395 IndexModeNone, f, itin,
2396 !strconcat(asm, "db${p}\t$Rn, $regs"), "", []> {
2397 let Inst{24-23} = 0b10; // Decrement Before
2398 let Inst{21} = 0; // No writeback
2399 let Inst{20} = L_bit;
2402 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2403 IndexModeUpd, f, itin_upd,
2404 !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
2405 let Inst{24-23} = 0b10; // Decrement Before
2406 let Inst{21} = 1; // Writeback
2407 let Inst{20} = L_bit;
2410 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2411 IndexModeNone, f, itin,
2412 !strconcat(asm, "ib${p}\t$Rn, $regs"), "", []> {
2413 let Inst{24-23} = 0b11; // Increment Before
2414 let Inst{21} = 0; // No writeback
2415 let Inst{20} = L_bit;
2418 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2419 IndexModeUpd, f, itin_upd,
2420 !strconcat(asm, "ib${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
2421 let Inst{24-23} = 0b11; // Increment Before
2422 let Inst{21} = 1; // Writeback
2423 let Inst{20} = L_bit;
2427 let neverHasSideEffects = 1 in {
2429 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
2430 defm LDM : arm_ldst_mult<"ldm", 1, LdStMulFrm, IIC_iLoad_m, IIC_iLoad_mu>;
2432 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
2433 defm STM : arm_ldst_mult<"stm", 0, LdStMulFrm, IIC_iStore_m, IIC_iStore_mu>;
2435 } // neverHasSideEffects
2437 // FIXME: remove when we have a way to marking a MI with these properties.
2438 // FIXME: Should pc be an implicit operand like PICADD, etc?
2439 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2440 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2441 def LDMIA_RET : ARMPseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2442 reglist:$regs, variable_ops),
2443 4, IIC_iLoad_mBr, [],
2444 (LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
2445 RegConstraint<"$Rn = $wb">;
2447 //===----------------------------------------------------------------------===//
2448 // Move Instructions.
2451 let neverHasSideEffects = 1 in
2452 def MOVr : AsI1<0b1101, (outs GPR:$Rd), (ins GPR:$Rm), DPFrm, IIC_iMOVr,
2453 "mov", "\t$Rd, $Rm", []>, UnaryDP {
2457 let Inst{19-16} = 0b0000;
2458 let Inst{11-4} = 0b00000000;
2461 let Inst{15-12} = Rd;
2464 // A version for the smaller set of tail call registers.
2465 let neverHasSideEffects = 1 in
2466 def MOVr_TC : AsI1<0b1101, (outs tcGPR:$Rd), (ins tcGPR:$Rm), DPFrm,
2467 IIC_iMOVr, "mov", "\t$Rd, $Rm", []>, UnaryDP {
2471 let Inst{11-4} = 0b00000000;
2474 let Inst{15-12} = Rd;
2477 def MOVsr : AsI1<0b1101, (outs GPR:$Rd), (ins shift_so_reg_reg:$src),
2478 DPSoRegRegFrm, IIC_iMOVsr,
2479 "mov", "\t$Rd, $src", [(set GPR:$Rd, shift_so_reg_reg:$src)]>,
2483 let Inst{15-12} = Rd;
2484 let Inst{19-16} = 0b0000;
2485 let Inst{11-8} = src{11-8};
2487 let Inst{6-5} = src{6-5};
2489 let Inst{3-0} = src{3-0};
2493 def MOVsi : AsI1<0b1101, (outs GPR:$Rd), (ins shift_so_reg_imm:$src),
2494 DPSoRegImmFrm, IIC_iMOVsr,
2495 "mov", "\t$Rd, $src", [(set GPR:$Rd, shift_so_reg_imm:$src)]>,
2499 let Inst{15-12} = Rd;
2500 let Inst{19-16} = 0b0000;
2501 let Inst{11-5} = src{11-5};
2503 let Inst{3-0} = src{3-0};
2509 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
2510 def MOVi : AsI1<0b1101, (outs GPR:$Rd), (ins so_imm:$imm), DPFrm, IIC_iMOVi,
2511 "mov", "\t$Rd, $imm", [(set GPR:$Rd, so_imm:$imm)]>, UnaryDP {
2515 let Inst{15-12} = Rd;
2516 let Inst{19-16} = 0b0000;
2517 let Inst{11-0} = imm;
2520 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
2521 def MOVi16 : AI1<0b1000, (outs GPR:$Rd), (ins imm0_65535_expr:$imm),
2523 "movw", "\t$Rd, $imm",
2524 [(set GPR:$Rd, imm0_65535:$imm)]>,
2525 Requires<[IsARM, HasV6T2]>, UnaryDP {
2528 let Inst{15-12} = Rd;
2529 let Inst{11-0} = imm{11-0};
2530 let Inst{19-16} = imm{15-12};
2535 def : InstAlias<"mov${p} $Rd, $imm",
2536 (MOVi16 GPR:$Rd, imm0_65535_expr:$imm, pred:$p)>,
2539 def MOVi16_ga_pcrel : PseudoInst<(outs GPR:$Rd),
2540 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
2542 let Constraints = "$src = $Rd" in {
2543 def MOVTi16 : AI1<0b1010, (outs GPR:$Rd), (ins GPR:$src, imm0_65535_expr:$imm),
2545 "movt", "\t$Rd, $imm",
2547 (or (and GPR:$src, 0xffff),
2548 lo16AllZero:$imm))]>, UnaryDP,
2549 Requires<[IsARM, HasV6T2]> {
2552 let Inst{15-12} = Rd;
2553 let Inst{11-0} = imm{11-0};
2554 let Inst{19-16} = imm{15-12};
2559 def MOVTi16_ga_pcrel : PseudoInst<(outs GPR:$Rd),
2560 (ins GPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
2564 def : ARMPat<(or GPR:$src, 0xffff0000), (MOVTi16 GPR:$src, 0xffff)>,
2565 Requires<[IsARM, HasV6T2]>;
2567 let Uses = [CPSR] in
2568 def RRX: PseudoInst<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVsi,
2569 [(set GPR:$Rd, (ARMrrx GPR:$Rm))]>, UnaryDP,
2572 // These aren't really mov instructions, but we have to define them this way
2573 // due to flag operands.
2575 let Defs = [CPSR] in {
2576 def MOVsrl_flag : PseudoInst<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
2577 [(set GPR:$dst, (ARMsrl_flag GPR:$src))]>, UnaryDP,
2579 def MOVsra_flag : PseudoInst<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
2580 [(set GPR:$dst, (ARMsra_flag GPR:$src))]>, UnaryDP,
2584 //===----------------------------------------------------------------------===//
2585 // Extend Instructions.
2590 def SXTB : AI_ext_rrot<0b01101010,
2591 "sxtb", UnOpFrag<(sext_inreg node:$Src, i8)>>;
2592 def SXTH : AI_ext_rrot<0b01101011,
2593 "sxth", UnOpFrag<(sext_inreg node:$Src, i16)>>;
2595 def SXTAB : AI_exta_rrot<0b01101010,
2596 "sxtab", BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
2597 def SXTAH : AI_exta_rrot<0b01101011,
2598 "sxtah", BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
2600 def SXTB16 : AI_ext_rrot_np<0b01101000, "sxtb16">;
2602 def SXTAB16 : AI_exta_rrot_np<0b01101000, "sxtab16">;
2606 let AddedComplexity = 16 in {
2607 def UXTB : AI_ext_rrot<0b01101110,
2608 "uxtb" , UnOpFrag<(and node:$Src, 0x000000FF)>>;
2609 def UXTH : AI_ext_rrot<0b01101111,
2610 "uxth" , UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
2611 def UXTB16 : AI_ext_rrot<0b01101100,
2612 "uxtb16", UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
2614 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
2615 // The transformation should probably be done as a combiner action
2616 // instead so we can include a check for masking back in the upper
2617 // eight bits of the source into the lower eight bits of the result.
2618 //def : ARMV6Pat<(and (shl GPR:$Src, (i32 8)), 0xFF00FF),
2619 // (UXTB16r_rot GPR:$Src, 3)>;
2620 def : ARMV6Pat<(and (srl GPR:$Src, (i32 8)), 0xFF00FF),
2621 (UXTB16 GPR:$Src, 1)>;
2623 def UXTAB : AI_exta_rrot<0b01101110, "uxtab",
2624 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
2625 def UXTAH : AI_exta_rrot<0b01101111, "uxtah",
2626 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
2629 // This isn't safe in general, the add is two 16-bit units, not a 32-bit add.
2630 def UXTAB16 : AI_exta_rrot_np<0b01101100, "uxtab16">;
2633 def SBFX : I<(outs GPR:$Rd),
2634 (ins GPR:$Rn, imm0_31:$lsb, imm1_32:$width),
2635 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
2636 "sbfx", "\t$Rd, $Rn, $lsb, $width", "", []>,
2637 Requires<[IsARM, HasV6T2]> {
2642 let Inst{27-21} = 0b0111101;
2643 let Inst{6-4} = 0b101;
2644 let Inst{20-16} = width;
2645 let Inst{15-12} = Rd;
2646 let Inst{11-7} = lsb;
2650 def UBFX : I<(outs GPR:$Rd),
2651 (ins GPR:$Rn, imm0_31:$lsb, imm1_32:$width),
2652 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
2653 "ubfx", "\t$Rd, $Rn, $lsb, $width", "", []>,
2654 Requires<[IsARM, HasV6T2]> {
2659 let Inst{27-21} = 0b0111111;
2660 let Inst{6-4} = 0b101;
2661 let Inst{20-16} = width;
2662 let Inst{15-12} = Rd;
2663 let Inst{11-7} = lsb;
2667 //===----------------------------------------------------------------------===//
2668 // Arithmetic Instructions.
2671 defm ADD : AsI1_bin_irs<0b0100, "add",
2672 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
2673 BinOpFrag<(add node:$LHS, node:$RHS)>, "ADD", 1>;
2674 defm SUB : AsI1_bin_irs<0b0010, "sub",
2675 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
2676 BinOpFrag<(sub node:$LHS, node:$RHS)>, "SUB">;
2678 // ADD and SUB with 's' bit set.
2679 defm ADDS : AI1_bin_s_irs<0b0100, "adds",
2680 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
2681 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
2682 defm SUBS : AI1_bin_s_irs<0b0010, "subs",
2683 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
2684 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
2686 defm ADC : AI1_adde_sube_irs<0b0101, "adc",
2687 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>,
2689 defm SBC : AI1_adde_sube_irs<0b0110, "sbc",
2690 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>,
2693 // ADC and SUBC with 's' bit set.
2694 let usesCustomInserter = 1 in {
2695 defm ADCS : AI1_adde_sube_s_irs<
2696 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
2697 defm SBCS : AI1_adde_sube_s_irs<
2698 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS) >>;
2701 def RSBri : AsI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
2702 IIC_iALUi, "rsb", "\t$Rd, $Rn, $imm",
2703 [(set GPR:$Rd, (sub so_imm:$imm, GPR:$Rn))]> {
2708 let Inst{15-12} = Rd;
2709 let Inst{19-16} = Rn;
2710 let Inst{11-0} = imm;
2713 // The reg/reg form is only defined for the disassembler; for codegen it is
2714 // equivalent to SUBrr.
2715 def RSBrr : AsI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
2716 IIC_iALUr, "rsb", "\t$Rd, $Rn, $Rm",
2717 [/* For disassembly only; pattern left blank */]> {
2721 let Inst{11-4} = 0b00000000;
2724 let Inst{15-12} = Rd;
2725 let Inst{19-16} = Rn;
2728 def RSBrsi : AsI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, so_reg_imm:$shift),
2729 DPSoRegImmFrm, IIC_iALUsr, "rsb", "\t$Rd, $Rn, $shift",
2730 [(set GPR:$Rd, (sub so_reg_imm:$shift, GPR:$Rn))]> {
2735 let Inst{19-16} = Rn;
2736 let Inst{15-12} = Rd;
2737 let Inst{11-5} = shift{11-5};
2739 let Inst{3-0} = shift{3-0};
2742 def RSBrsr : AsI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, so_reg_reg:$shift),
2743 DPSoRegRegFrm, IIC_iALUsr, "rsb", "\t$Rd, $Rn, $shift",
2744 [(set GPR:$Rd, (sub so_reg_reg:$shift, GPR:$Rn))]> {
2749 let Inst{19-16} = Rn;
2750 let Inst{15-12} = Rd;
2751 let Inst{11-8} = shift{11-8};
2753 let Inst{6-5} = shift{6-5};
2755 let Inst{3-0} = shift{3-0};
2758 // RSB with 's' bit set.
2759 // NOTE: CPSR def omitted because it will be handled by the custom inserter.
2760 let usesCustomInserter = 1 in {
2761 def RSBSri : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
2763 [(set GPR:$Rd, (subc so_imm:$imm, GPR:$Rn))]>;
2764 def RSBSrr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2766 [/* For disassembly only; pattern left blank */]>;
2767 def RSBSrsi : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_reg_imm:$shift),
2769 [(set GPR:$Rd, (subc so_reg_imm:$shift, GPR:$Rn))]>;
2770 def RSBSrsr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_reg_reg:$shift),
2772 [(set GPR:$Rd, (subc so_reg_reg:$shift, GPR:$Rn))]>;
2775 let Uses = [CPSR] in {
2776 def RSCri : AsI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
2777 DPFrm, IIC_iALUi, "rsc", "\t$Rd, $Rn, $imm",
2778 [(set GPR:$Rd, (sube_dead_carry so_imm:$imm, GPR:$Rn))]>,
2784 let Inst{15-12} = Rd;
2785 let Inst{19-16} = Rn;
2786 let Inst{11-0} = imm;
2788 // The reg/reg form is only defined for the disassembler; for codegen it is
2789 // equivalent to SUBrr.
2790 def RSCrr : AsI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2791 DPFrm, IIC_iALUr, "rsc", "\t$Rd, $Rn, $Rm",
2792 [/* For disassembly only; pattern left blank */]> {
2796 let Inst{11-4} = 0b00000000;
2799 let Inst{15-12} = Rd;
2800 let Inst{19-16} = Rn;
2802 def RSCrsi : AsI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, so_reg_imm:$shift),
2803 DPSoRegImmFrm, IIC_iALUsr, "rsc", "\t$Rd, $Rn, $shift",
2804 [(set GPR:$Rd, (sube_dead_carry so_reg_imm:$shift, GPR:$Rn))]>,
2810 let Inst{19-16} = Rn;
2811 let Inst{15-12} = Rd;
2812 let Inst{11-5} = shift{11-5};
2814 let Inst{3-0} = shift{3-0};
2816 def RSCrsr : AsI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, so_reg_reg:$shift),
2817 DPSoRegRegFrm, IIC_iALUsr, "rsc", "\t$Rd, $Rn, $shift",
2818 [(set GPR:$Rd, (sube_dead_carry so_reg_reg:$shift, GPR:$Rn))]>,
2824 let Inst{19-16} = Rn;
2825 let Inst{15-12} = Rd;
2826 let Inst{11-8} = shift{11-8};
2828 let Inst{6-5} = shift{6-5};
2830 let Inst{3-0} = shift{3-0};
2835 // NOTE: CPSR def omitted because it will be handled by the custom inserter.
2836 let usesCustomInserter = 1, Uses = [CPSR] in {
2837 def RSCSri : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
2839 [(set GPR:$Rd, (sube_dead_carry so_imm:$imm, GPR:$Rn))]>;
2840 def RSCSrsi : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_reg_imm:$shift),
2842 [(set GPR:$Rd, (sube_dead_carry so_reg_imm:$shift, GPR:$Rn))]>;
2843 def RSCSrsr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_reg_reg:$shift),
2845 [(set GPR:$Rd, (sube_dead_carry so_reg_reg:$shift, GPR:$Rn))]>;
2848 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
2849 // The assume-no-carry-in form uses the negation of the input since add/sub
2850 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
2851 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
2853 def : ARMPat<(add GPR:$src, so_imm_neg:$imm),
2854 (SUBri GPR:$src, so_imm_neg:$imm)>;
2855 def : ARMPat<(addc GPR:$src, so_imm_neg:$imm),
2856 (SUBSri GPR:$src, so_imm_neg:$imm)>;
2857 // The with-carry-in form matches bitwise not instead of the negation.
2858 // Effectively, the inverse interpretation of the carry flag already accounts
2859 // for part of the negation.
2860 def : ARMPat<(adde_dead_carry GPR:$src, so_imm_not:$imm),
2861 (SBCri GPR:$src, so_imm_not:$imm)>;
2862 def : ARMPat<(adde_live_carry GPR:$src, so_imm_not:$imm),
2863 (SBCSri GPR:$src, so_imm_not:$imm)>;
2865 // Note: These are implemented in C++ code, because they have to generate
2866 // ADD/SUBrs instructions, which use a complex pattern that a xform function
2868 // (mul X, 2^n+1) -> (add (X << n), X)
2869 // (mul X, 2^n-1) -> (rsb X, (X << n))
2871 // ARM Arithmetic Instruction
2872 // GPR:$dst = GPR:$a op GPR:$b
2873 class AAI<bits<8> op27_20, bits<8> op11_4, string opc,
2874 list<dag> pattern = [],
2875 dag iops = (ins GPR:$Rn, GPR:$Rm), string asm = "\t$Rd, $Rn, $Rm">
2876 : AI<(outs GPR:$Rd), iops, DPFrm, IIC_iALUr, opc, asm, pattern> {
2880 let Inst{27-20} = op27_20;
2881 let Inst{11-4} = op11_4;
2882 let Inst{19-16} = Rn;
2883 let Inst{15-12} = Rd;
2887 // Saturating add/subtract
2889 def QADD : AAI<0b00010000, 0b00000101, "qadd",
2890 [(set GPR:$Rd, (int_arm_qadd GPR:$Rm, GPR:$Rn))],
2891 (ins GPR:$Rm, GPR:$Rn), "\t$Rd, $Rm, $Rn">;
2892 def QSUB : AAI<0b00010010, 0b00000101, "qsub",
2893 [(set GPR:$Rd, (int_arm_qsub GPR:$Rm, GPR:$Rn))],
2894 (ins GPR:$Rm, GPR:$Rn), "\t$Rd, $Rm, $Rn">;
2895 def QDADD : AAI<0b00010100, 0b00000101, "qdadd", [], (ins GPR:$Rm, GPR:$Rn),
2897 def QDSUB : AAI<0b00010110, 0b00000101, "qdsub", [], (ins GPR:$Rm, GPR:$Rn),
2900 def QADD16 : AAI<0b01100010, 0b11110001, "qadd16">;
2901 def QADD8 : AAI<0b01100010, 0b11111001, "qadd8">;
2902 def QASX : AAI<0b01100010, 0b11110011, "qasx">;
2903 def QSAX : AAI<0b01100010, 0b11110101, "qsax">;
2904 def QSUB16 : AAI<0b01100010, 0b11110111, "qsub16">;
2905 def QSUB8 : AAI<0b01100010, 0b11111111, "qsub8">;
2906 def UQADD16 : AAI<0b01100110, 0b11110001, "uqadd16">;
2907 def UQADD8 : AAI<0b01100110, 0b11111001, "uqadd8">;
2908 def UQASX : AAI<0b01100110, 0b11110011, "uqasx">;
2909 def UQSAX : AAI<0b01100110, 0b11110101, "uqsax">;
2910 def UQSUB16 : AAI<0b01100110, 0b11110111, "uqsub16">;
2911 def UQSUB8 : AAI<0b01100110, 0b11111111, "uqsub8">;
2913 // Signed/Unsigned add/subtract
2915 def SASX : AAI<0b01100001, 0b11110011, "sasx">;
2916 def SADD16 : AAI<0b01100001, 0b11110001, "sadd16">;
2917 def SADD8 : AAI<0b01100001, 0b11111001, "sadd8">;
2918 def SSAX : AAI<0b01100001, 0b11110101, "ssax">;
2919 def SSUB16 : AAI<0b01100001, 0b11110111, "ssub16">;
2920 def SSUB8 : AAI<0b01100001, 0b11111111, "ssub8">;
2921 def UASX : AAI<0b01100101, 0b11110011, "uasx">;
2922 def UADD16 : AAI<0b01100101, 0b11110001, "uadd16">;
2923 def UADD8 : AAI<0b01100101, 0b11111001, "uadd8">;
2924 def USAX : AAI<0b01100101, 0b11110101, "usax">;
2925 def USUB16 : AAI<0b01100101, 0b11110111, "usub16">;
2926 def USUB8 : AAI<0b01100101, 0b11111111, "usub8">;
2928 // Signed/Unsigned halving add/subtract
2930 def SHASX : AAI<0b01100011, 0b11110011, "shasx">;
2931 def SHADD16 : AAI<0b01100011, 0b11110001, "shadd16">;
2932 def SHADD8 : AAI<0b01100011, 0b11111001, "shadd8">;
2933 def SHSAX : AAI<0b01100011, 0b11110101, "shsax">;
2934 def SHSUB16 : AAI<0b01100011, 0b11110111, "shsub16">;
2935 def SHSUB8 : AAI<0b01100011, 0b11111111, "shsub8">;
2936 def UHASX : AAI<0b01100111, 0b11110011, "uhasx">;
2937 def UHADD16 : AAI<0b01100111, 0b11110001, "uhadd16">;
2938 def UHADD8 : AAI<0b01100111, 0b11111001, "uhadd8">;
2939 def UHSAX : AAI<0b01100111, 0b11110101, "uhsax">;
2940 def UHSUB16 : AAI<0b01100111, 0b11110111, "uhsub16">;
2941 def UHSUB8 : AAI<0b01100111, 0b11111111, "uhsub8">;
2943 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
2945 def USAD8 : AI<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2946 MulFrm /* for convenience */, NoItinerary, "usad8",
2947 "\t$Rd, $Rn, $Rm", []>,
2948 Requires<[IsARM, HasV6]> {
2952 let Inst{27-20} = 0b01111000;
2953 let Inst{15-12} = 0b1111;
2954 let Inst{7-4} = 0b0001;
2955 let Inst{19-16} = Rd;
2956 let Inst{11-8} = Rm;
2959 def USADA8 : AI<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2960 MulFrm /* for convenience */, NoItinerary, "usada8",
2961 "\t$Rd, $Rn, $Rm, $Ra", []>,
2962 Requires<[IsARM, HasV6]> {
2967 let Inst{27-20} = 0b01111000;
2968 let Inst{7-4} = 0b0001;
2969 let Inst{19-16} = Rd;
2970 let Inst{15-12} = Ra;
2971 let Inst{11-8} = Rm;
2975 // Signed/Unsigned saturate -- for disassembly only
2977 def SSAT : AI<(outs GPR:$Rd), (ins imm1_32:$sat_imm, GPR:$Rn, shift_imm:$sh),
2978 SatFrm, NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> {
2983 let Inst{27-21} = 0b0110101;
2984 let Inst{5-4} = 0b01;
2985 let Inst{20-16} = sat_imm;
2986 let Inst{15-12} = Rd;
2987 let Inst{11-7} = sh{4-0};
2988 let Inst{6} = sh{5};
2992 def SSAT16 : AI<(outs GPR:$Rd), (ins imm1_16:$sat_imm, GPR:$Rn), SatFrm,
2993 NoItinerary, "ssat16", "\t$Rd, $sat_imm, $Rn", []> {
2997 let Inst{27-20} = 0b01101010;
2998 let Inst{11-4} = 0b11110011;
2999 let Inst{15-12} = Rd;
3000 let Inst{19-16} = sat_imm;
3004 def USAT : AI<(outs GPR:$Rd), (ins imm0_31:$sat_imm, GPR:$Rn, shift_imm:$sh),
3005 SatFrm, NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> {
3010 let Inst{27-21} = 0b0110111;
3011 let Inst{5-4} = 0b01;
3012 let Inst{15-12} = Rd;
3013 let Inst{11-7} = sh{4-0};
3014 let Inst{6} = sh{5};
3015 let Inst{20-16} = sat_imm;
3019 def USAT16 : AI<(outs GPR:$Rd), (ins imm0_15:$sat_imm, GPR:$a), SatFrm,
3020 NoItinerary, "usat16", "\t$Rd, $sat_imm, $a",
3021 [/* For disassembly only; pattern left blank */]> {
3025 let Inst{27-20} = 0b01101110;
3026 let Inst{11-4} = 0b11110011;
3027 let Inst{15-12} = Rd;
3028 let Inst{19-16} = sat_imm;
3032 def : ARMV6Pat<(int_arm_ssat GPR:$a, imm:$pos), (SSAT imm:$pos, GPR:$a, 0)>;
3033 def : ARMV6Pat<(int_arm_usat GPR:$a, imm:$pos), (USAT imm:$pos, GPR:$a, 0)>;
3035 //===----------------------------------------------------------------------===//
3036 // Bitwise Instructions.
3039 defm AND : AsI1_bin_irs<0b0000, "and",
3040 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
3041 BinOpFrag<(and node:$LHS, node:$RHS)>, "AND", 1>;
3042 defm ORR : AsI1_bin_irs<0b1100, "orr",
3043 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
3044 BinOpFrag<(or node:$LHS, node:$RHS)>, "ORR", 1>;
3045 defm EOR : AsI1_bin_irs<0b0001, "eor",
3046 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
3047 BinOpFrag<(xor node:$LHS, node:$RHS)>, "EOR", 1>;
3048 defm BIC : AsI1_bin_irs<0b1110, "bic",
3049 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
3050 BinOpFrag<(and node:$LHS, (not node:$RHS))>, "BIC">;
3052 // FIXME: bf_inv_mask_imm should be two operands, the lsb and the msb, just
3053 // like in the actual instruction encoding. The complexity of mapping the mask
3054 // to the lsb/msb pair should be handled by ISel, not encapsulated in the
3055 // instruction description.
3056 def BFC : I<(outs GPR:$Rd), (ins GPR:$src, bf_inv_mask_imm:$imm),
3057 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
3058 "bfc", "\t$Rd, $imm", "$src = $Rd",
3059 [(set GPR:$Rd, (and GPR:$src, bf_inv_mask_imm:$imm))]>,
3060 Requires<[IsARM, HasV6T2]> {
3063 let Inst{27-21} = 0b0111110;
3064 let Inst{6-0} = 0b0011111;
3065 let Inst{15-12} = Rd;
3066 let Inst{11-7} = imm{4-0}; // lsb
3067 let Inst{20-16} = imm{9-5}; // msb
3070 // A8.6.18 BFI - Bitfield insert (Encoding A1)
3071 def BFI : I<(outs GPR:$Rd), (ins GPR:$src, GPR:$Rn, bf_inv_mask_imm:$imm),
3072 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
3073 "bfi", "\t$Rd, $Rn, $imm", "$src = $Rd",
3074 [(set GPR:$Rd, (ARMbfi GPR:$src, GPR:$Rn,
3075 bf_inv_mask_imm:$imm))]>,
3076 Requires<[IsARM, HasV6T2]> {
3080 let Inst{27-21} = 0b0111110;
3081 let Inst{6-4} = 0b001; // Rn: Inst{3-0} != 15
3082 let Inst{15-12} = Rd;
3083 let Inst{11-7} = imm{4-0}; // lsb
3084 let Inst{20-16} = imm{9-5}; // width
3088 // GNU as only supports this form of bfi (w/ 4 arguments)
3089 let isAsmParserOnly = 1 in
3090 def BFI4p : I<(outs GPR:$Rd), (ins GPR:$src, GPR:$Rn,
3091 lsb_pos_imm:$lsb, width_imm:$width),
3092 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
3093 "bfi", "\t$Rd, $Rn, $lsb, $width", "$src = $Rd",
3094 []>, Requires<[IsARM, HasV6T2]> {
3099 let Inst{27-21} = 0b0111110;
3100 let Inst{6-4} = 0b001; // Rn: Inst{3-0} != 15
3101 let Inst{15-12} = Rd;
3102 let Inst{11-7} = lsb;
3103 let Inst{20-16} = width; // Custom encoder => lsb+width-1
3107 def MVNr : AsI1<0b1111, (outs GPR:$Rd), (ins GPR:$Rm), DPFrm, IIC_iMVNr,
3108 "mvn", "\t$Rd, $Rm",
3109 [(set GPR:$Rd, (not GPR:$Rm))]>, UnaryDP {
3113 let Inst{19-16} = 0b0000;
3114 let Inst{11-4} = 0b00000000;
3115 let Inst{15-12} = Rd;
3118 def MVNsi : AsI1<0b1111, (outs GPR:$Rd), (ins so_reg_imm:$shift),
3119 DPSoRegImmFrm, IIC_iMVNsr, "mvn", "\t$Rd, $shift",
3120 [(set GPR:$Rd, (not so_reg_imm:$shift))]>, UnaryDP {
3124 let Inst{19-16} = 0b0000;
3125 let Inst{15-12} = Rd;
3126 let Inst{11-5} = shift{11-5};
3128 let Inst{3-0} = shift{3-0};
3130 def MVNsr : AsI1<0b1111, (outs GPR:$Rd), (ins so_reg_reg:$shift),
3131 DPSoRegRegFrm, IIC_iMVNsr, "mvn", "\t$Rd, $shift",
3132 [(set GPR:$Rd, (not so_reg_reg:$shift))]>, UnaryDP {
3136 let Inst{19-16} = 0b0000;
3137 let Inst{15-12} = Rd;
3138 let Inst{11-8} = shift{11-8};
3140 let Inst{6-5} = shift{6-5};
3142 let Inst{3-0} = shift{3-0};
3144 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
3145 def MVNi : AsI1<0b1111, (outs GPR:$Rd), (ins so_imm:$imm), DPFrm,
3146 IIC_iMVNi, "mvn", "\t$Rd, $imm",
3147 [(set GPR:$Rd, so_imm_not:$imm)]>,UnaryDP {
3151 let Inst{19-16} = 0b0000;
3152 let Inst{15-12} = Rd;
3153 let Inst{11-0} = imm;
3156 def : ARMPat<(and GPR:$src, so_imm_not:$imm),
3157 (BICri GPR:$src, so_imm_not:$imm)>;
3159 //===----------------------------------------------------------------------===//
3160 // Multiply Instructions.
3162 class AsMul1I32<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
3163 string opc, string asm, list<dag> pattern>
3164 : AsMul1I<opcod, oops, iops, itin, opc, asm, pattern> {
3168 let Inst{19-16} = Rd;
3169 let Inst{11-8} = Rm;
3172 class AsMul1I64<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
3173 string opc, string asm, list<dag> pattern>
3174 : AsMul1I<opcod, oops, iops, itin, opc, asm, pattern> {
3179 let Inst{19-16} = RdHi;
3180 let Inst{15-12} = RdLo;
3181 let Inst{11-8} = Rm;
3185 // FIXME: The v5 pseudos are only necessary for the additional Constraint
3186 // property. Remove them when it's possible to add those properties
3187 // on an individual MachineInstr, not just an instuction description.
3188 let isCommutable = 1 in {
3189 def MUL : AsMul1I32<0b0000000, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3190 IIC_iMUL32, "mul", "\t$Rd, $Rn, $Rm",
3191 [(set GPR:$Rd, (mul GPR:$Rn, GPR:$Rm))]>,
3192 Requires<[IsARM, HasV6]> {
3193 let Inst{15-12} = 0b0000;
3196 let Constraints = "@earlyclobber $Rd" in
3197 def MULv5: ARMPseudoExpand<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm,
3198 pred:$p, cc_out:$s),
3200 [(set GPR:$Rd, (mul GPR:$Rn, GPR:$Rm))],
3201 (MUL GPR:$Rd, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
3202 Requires<[IsARM, NoV6]>;
3205 def MLA : AsMul1I32<0b0000001, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3206 IIC_iMAC32, "mla", "\t$Rd, $Rn, $Rm, $Ra",
3207 [(set GPR:$Rd, (add (mul GPR:$Rn, GPR:$Rm), GPR:$Ra))]>,
3208 Requires<[IsARM, HasV6]> {
3210 let Inst{15-12} = Ra;
3213 let Constraints = "@earlyclobber $Rd" in
3214 def MLAv5: ARMPseudoExpand<(outs GPR:$Rd),
3215 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra, pred:$p, cc_out:$s),
3217 [(set GPR:$Rd, (add (mul GPR:$Rn, GPR:$Rm), GPR:$Ra))],
3218 (MLA GPR:$Rd, GPR:$Rn, GPR:$Rm, GPR:$Ra, pred:$p, cc_out:$s)>,
3219 Requires<[IsARM, NoV6]>;
3221 def MLS : AMul1I<0b0000011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3222 IIC_iMAC32, "mls", "\t$Rd, $Rn, $Rm, $Ra",
3223 [(set GPR:$Rd, (sub GPR:$Ra, (mul GPR:$Rn, GPR:$Rm)))]>,
3224 Requires<[IsARM, HasV6T2]> {
3229 let Inst{19-16} = Rd;
3230 let Inst{15-12} = Ra;
3231 let Inst{11-8} = Rm;
3235 // Extra precision multiplies with low / high results
3236 let neverHasSideEffects = 1 in {
3237 let isCommutable = 1 in {
3238 def SMULL : AsMul1I64<0b0000110, (outs GPR:$RdLo, GPR:$RdHi),
3239 (ins GPR:$Rn, GPR:$Rm), IIC_iMUL64,
3240 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3241 Requires<[IsARM, HasV6]>;
3243 def UMULL : AsMul1I64<0b0000100, (outs GPR:$RdLo, GPR:$RdHi),
3244 (ins GPR:$Rn, GPR:$Rm), IIC_iMUL64,
3245 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3246 Requires<[IsARM, HasV6]>;
3248 let Constraints = "@earlyclobber $RdLo,@earlyclobber $RdHi" in {
3249 def SMULLv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3250 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
3252 (SMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
3253 Requires<[IsARM, NoV6]>;
3255 def UMULLv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3256 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
3258 (UMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
3259 Requires<[IsARM, NoV6]>;
3263 // Multiply + accumulate
3264 def SMLAL : AsMul1I64<0b0000111, (outs GPR:$RdLo, GPR:$RdHi),
3265 (ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
3266 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3267 Requires<[IsARM, HasV6]>;
3268 def UMLAL : AsMul1I64<0b0000101, (outs GPR:$RdLo, GPR:$RdHi),
3269 (ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
3270 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3271 Requires<[IsARM, HasV6]>;
3273 def UMAAL : AMul1I <0b0000010, (outs GPR:$RdLo, GPR:$RdHi),
3274 (ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
3275 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3276 Requires<[IsARM, HasV6]> {
3281 let Inst{19-16} = RdLo;
3282 let Inst{15-12} = RdHi;
3283 let Inst{11-8} = Rm;
3287 let Constraints = "@earlyclobber $RdLo,@earlyclobber $RdHi" in {
3288 def SMLALv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3289 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
3291 (SMLAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
3292 Requires<[IsARM, NoV6]>;
3293 def UMLALv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3294 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
3296 (UMLAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
3297 Requires<[IsARM, NoV6]>;
3298 def UMAALv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3299 (ins GPR:$Rn, GPR:$Rm, pred:$p),
3301 (UMAAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p)>,
3302 Requires<[IsARM, NoV6]>;
3305 } // neverHasSideEffects
3307 // Most significant word multiply
3308 def SMMUL : AMul2I <0b0111010, 0b0001, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3309 IIC_iMUL32, "smmul", "\t$Rd, $Rn, $Rm",
3310 [(set GPR:$Rd, (mulhs GPR:$Rn, GPR:$Rm))]>,
3311 Requires<[IsARM, HasV6]> {
3312 let Inst{15-12} = 0b1111;
3315 def SMMULR : AMul2I <0b0111010, 0b0011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3316 IIC_iMUL32, "smmulr", "\t$Rd, $Rn, $Rm",
3317 [/* For disassembly only; pattern left blank */]>,
3318 Requires<[IsARM, HasV6]> {
3319 let Inst{15-12} = 0b1111;
3322 def SMMLA : AMul2Ia <0b0111010, 0b0001, (outs GPR:$Rd),
3323 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3324 IIC_iMAC32, "smmla", "\t$Rd, $Rn, $Rm, $Ra",
3325 [(set GPR:$Rd, (add (mulhs GPR:$Rn, GPR:$Rm), GPR:$Ra))]>,
3326 Requires<[IsARM, HasV6]>;
3328 def SMMLAR : AMul2Ia <0b0111010, 0b0011, (outs GPR:$Rd),
3329 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3330 IIC_iMAC32, "smmlar", "\t$Rd, $Rn, $Rm, $Ra",
3331 [/* For disassembly only; pattern left blank */]>,
3332 Requires<[IsARM, HasV6]>;
3334 def SMMLS : AMul2Ia <0b0111010, 0b1101, (outs GPR:$Rd),
3335 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3336 IIC_iMAC32, "smmls", "\t$Rd, $Rn, $Rm, $Ra",
3337 [(set GPR:$Rd, (sub GPR:$Ra, (mulhs GPR:$Rn, GPR:$Rm)))]>,
3338 Requires<[IsARM, HasV6]>;
3340 def SMMLSR : AMul2Ia <0b0111010, 0b1111, (outs GPR:$Rd),
3341 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3342 IIC_iMAC32, "smmlsr", "\t$Rd, $Rn, $Rm, $Ra",
3343 [/* For disassembly only; pattern left blank */]>,
3344 Requires<[IsARM, HasV6]>;
3346 multiclass AI_smul<string opc, PatFrag opnode> {
3347 def BB : AMulxyI<0b0001011, 0b00, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3348 IIC_iMUL16, !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
3349 [(set GPR:$Rd, (opnode (sext_inreg GPR:$Rn, i16),
3350 (sext_inreg GPR:$Rm, i16)))]>,
3351 Requires<[IsARM, HasV5TE]>;
3353 def BT : AMulxyI<0b0001011, 0b10, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3354 IIC_iMUL16, !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
3355 [(set GPR:$Rd, (opnode (sext_inreg GPR:$Rn, i16),
3356 (sra GPR:$Rm, (i32 16))))]>,
3357 Requires<[IsARM, HasV5TE]>;
3359 def TB : AMulxyI<0b0001011, 0b01, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3360 IIC_iMUL16, !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
3361 [(set GPR:$Rd, (opnode (sra GPR:$Rn, (i32 16)),
3362 (sext_inreg GPR:$Rm, i16)))]>,
3363 Requires<[IsARM, HasV5TE]>;
3365 def TT : AMulxyI<0b0001011, 0b11, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3366 IIC_iMUL16, !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
3367 [(set GPR:$Rd, (opnode (sra GPR:$Rn, (i32 16)),
3368 (sra GPR:$Rm, (i32 16))))]>,
3369 Requires<[IsARM, HasV5TE]>;
3371 def WB : AMulxyI<0b0001001, 0b01, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3372 IIC_iMUL16, !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
3373 [(set GPR:$Rd, (sra (opnode GPR:$Rn,
3374 (sext_inreg GPR:$Rm, i16)), (i32 16)))]>,
3375 Requires<[IsARM, HasV5TE]>;
3377 def WT : AMulxyI<0b0001001, 0b11, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3378 IIC_iMUL16, !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
3379 [(set GPR:$Rd, (sra (opnode GPR:$Rn,
3380 (sra GPR:$Rm, (i32 16))), (i32 16)))]>,
3381 Requires<[IsARM, HasV5TE]>;
3385 multiclass AI_smla<string opc, PatFrag opnode> {
3386 def BB : AMulxyIa<0b0001000, 0b00, (outs GPR:$Rd),
3387 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3388 IIC_iMAC16, !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
3389 [(set GPR:$Rd, (add GPR:$Ra,
3390 (opnode (sext_inreg GPR:$Rn, i16),
3391 (sext_inreg GPR:$Rm, i16))))]>,
3392 Requires<[IsARM, HasV5TE]>;
3394 def BT : AMulxyIa<0b0001000, 0b10, (outs GPR:$Rd),
3395 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3396 IIC_iMAC16, !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
3397 [(set GPR:$Rd, (add GPR:$Ra, (opnode (sext_inreg GPR:$Rn, i16),
3398 (sra GPR:$Rm, (i32 16)))))]>,
3399 Requires<[IsARM, HasV5TE]>;
3401 def TB : AMulxyIa<0b0001000, 0b01, (outs GPR:$Rd),
3402 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3403 IIC_iMAC16, !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
3404 [(set GPR:$Rd, (add GPR:$Ra, (opnode (sra GPR:$Rn, (i32 16)),
3405 (sext_inreg GPR:$Rm, i16))))]>,
3406 Requires<[IsARM, HasV5TE]>;
3408 def TT : AMulxyIa<0b0001000, 0b11, (outs GPR:$Rd),
3409 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3410 IIC_iMAC16, !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
3411 [(set GPR:$Rd, (add GPR:$Ra, (opnode (sra GPR:$Rn, (i32 16)),
3412 (sra GPR:$Rm, (i32 16)))))]>,
3413 Requires<[IsARM, HasV5TE]>;
3415 def WB : AMulxyIa<0b0001001, 0b00, (outs GPR:$Rd),
3416 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3417 IIC_iMAC16, !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
3418 [(set GPR:$Rd, (add GPR:$Ra, (sra (opnode GPR:$Rn,
3419 (sext_inreg GPR:$Rm, i16)), (i32 16))))]>,
3420 Requires<[IsARM, HasV5TE]>;
3422 def WT : AMulxyIa<0b0001001, 0b10, (outs GPR:$Rd),
3423 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3424 IIC_iMAC16, !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
3425 [(set GPR:$Rd, (add GPR:$Ra, (sra (opnode GPR:$Rn,
3426 (sra GPR:$Rm, (i32 16))), (i32 16))))]>,
3427 Requires<[IsARM, HasV5TE]>;
3430 defm SMUL : AI_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
3431 defm SMLA : AI_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
3433 // Halfword multiply accumulate long: SMLAL<x><y> -- for disassembly only
3434 def SMLALBB : AMulxyI64<0b0001010, 0b00, (outs GPR:$RdLo, GPR:$RdHi),
3435 (ins GPR:$Rn, GPR:$Rm),
3436 IIC_iMAC64, "smlalbb", "\t$RdLo, $RdHi, $Rn, $Rm",
3437 [/* For disassembly only; pattern left blank */]>,
3438 Requires<[IsARM, HasV5TE]>;
3440 def SMLALBT : AMulxyI64<0b0001010, 0b10, (outs GPR:$RdLo, GPR:$RdHi),
3441 (ins GPR:$Rn, GPR:$Rm),
3442 IIC_iMAC64, "smlalbt", "\t$RdLo, $RdHi, $Rn, $Rm",
3443 [/* For disassembly only; pattern left blank */]>,
3444 Requires<[IsARM, HasV5TE]>;
3446 def SMLALTB : AMulxyI64<0b0001010, 0b01, (outs GPR:$RdLo, GPR:$RdHi),
3447 (ins GPR:$Rn, GPR:$Rm),
3448 IIC_iMAC64, "smlaltb", "\t$RdLo, $RdHi, $Rn, $Rm",
3449 [/* For disassembly only; pattern left blank */]>,
3450 Requires<[IsARM, HasV5TE]>;
3452 def SMLALTT : AMulxyI64<0b0001010, 0b11, (outs GPR:$RdLo, GPR:$RdHi),
3453 (ins GPR:$Rn, GPR:$Rm),
3454 IIC_iMAC64, "smlaltt", "\t$RdLo, $RdHi, $Rn, $Rm",
3455 [/* For disassembly only; pattern left blank */]>,
3456 Requires<[IsARM, HasV5TE]>;
3458 // Helper class for AI_smld -- for disassembly only
3459 class AMulDualIbase<bit long, bit sub, bit swap, dag oops, dag iops,
3460 InstrItinClass itin, string opc, string asm>
3461 : AI<oops, iops, MulFrm, itin, opc, asm, []>, Requires<[IsARM, HasV6]> {
3464 let Inst{27-23} = 0b01110;
3465 let Inst{22} = long;
3466 let Inst{21-20} = 0b00;
3467 let Inst{11-8} = Rm;
3474 class AMulDualI<bit long, bit sub, bit swap, dag oops, dag iops,
3475 InstrItinClass itin, string opc, string asm>
3476 : AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
3478 let Inst{15-12} = 0b1111;
3479 let Inst{19-16} = Rd;
3481 class AMulDualIa<bit long, bit sub, bit swap, dag oops, dag iops,
3482 InstrItinClass itin, string opc, string asm>
3483 : AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
3486 let Inst{19-16} = Rd;
3487 let Inst{15-12} = Ra;
3489 class AMulDualI64<bit long, bit sub, bit swap, dag oops, dag iops,
3490 InstrItinClass itin, string opc, string asm>
3491 : AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
3494 let Inst{19-16} = RdHi;
3495 let Inst{15-12} = RdLo;
3498 multiclass AI_smld<bit sub, string opc> {
3500 def D : AMulDualIa<0, sub, 0, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3501 NoItinerary, !strconcat(opc, "d"), "\t$Rd, $Rn, $Rm, $Ra">;
3503 def DX: AMulDualIa<0, sub, 1, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3504 NoItinerary, !strconcat(opc, "dx"), "\t$Rd, $Rn, $Rm, $Ra">;
3506 def LD: AMulDualI64<1, sub, 0, (outs GPR:$RdLo,GPR:$RdHi),
3507 (ins GPR:$Rn, GPR:$Rm), NoItinerary,
3508 !strconcat(opc, "ld"), "\t$RdLo, $RdHi, $Rn, $Rm">;
3510 def LDX : AMulDualI64<1, sub, 1, (outs GPR:$RdLo,GPR:$RdHi),
3511 (ins GPR:$Rn, GPR:$Rm), NoItinerary,
3512 !strconcat(opc, "ldx"),"\t$RdLo, $RdHi, $Rn, $Rm">;
3516 defm SMLA : AI_smld<0, "smla">;
3517 defm SMLS : AI_smld<1, "smls">;
3519 multiclass AI_sdml<bit sub, string opc> {
3521 def D : AMulDualI<0, sub, 0, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3522 NoItinerary, !strconcat(opc, "d"), "\t$Rd, $Rn, $Rm">;
3523 def DX : AMulDualI<0, sub, 1, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3524 NoItinerary, !strconcat(opc, "dx"), "\t$Rd, $Rn, $Rm">;
3527 defm SMUA : AI_sdml<0, "smua">;
3528 defm SMUS : AI_sdml<1, "smus">;
3530 //===----------------------------------------------------------------------===//
3531 // Misc. Arithmetic Instructions.
3534 def CLZ : AMiscA1I<0b000010110, 0b0001, (outs GPR:$Rd), (ins GPR:$Rm),
3535 IIC_iUNAr, "clz", "\t$Rd, $Rm",
3536 [(set GPR:$Rd, (ctlz GPR:$Rm))]>, Requires<[IsARM, HasV5T]>;
3538 def RBIT : AMiscA1I<0b01101111, 0b0011, (outs GPR:$Rd), (ins GPR:$Rm),
3539 IIC_iUNAr, "rbit", "\t$Rd, $Rm",
3540 [(set GPR:$Rd, (ARMrbit GPR:$Rm))]>,
3541 Requires<[IsARM, HasV6T2]>;
3543 def REV : AMiscA1I<0b01101011, 0b0011, (outs GPR:$Rd), (ins GPR:$Rm),
3544 IIC_iUNAr, "rev", "\t$Rd, $Rm",
3545 [(set GPR:$Rd, (bswap GPR:$Rm))]>, Requires<[IsARM, HasV6]>;
3547 let AddedComplexity = 5 in
3548 def REV16 : AMiscA1I<0b01101011, 0b1011, (outs GPR:$Rd), (ins GPR:$Rm),
3549 IIC_iUNAr, "rev16", "\t$Rd, $Rm",
3550 [(set GPR:$Rd, (rotr (bswap GPR:$Rm), (i32 16)))]>,
3551 Requires<[IsARM, HasV6]>;
3553 let AddedComplexity = 5 in
3554 def REVSH : AMiscA1I<0b01101111, 0b1011, (outs GPR:$Rd), (ins GPR:$Rm),
3555 IIC_iUNAr, "revsh", "\t$Rd, $Rm",
3556 [(set GPR:$Rd, (sra (bswap GPR:$Rm), (i32 16)))]>,
3557 Requires<[IsARM, HasV6]>;
3559 def : ARMV6Pat<(or (sra (shl GPR:$Rm, (i32 24)), (i32 16)),
3560 (and (srl GPR:$Rm, (i32 8)), 0xFF)),
3563 def PKHBT : APKHI<0b01101000, 0, (outs GPR:$Rd),
3564 (ins GPR:$Rn, GPR:$Rm, pkh_lsl_amt:$sh),
3565 IIC_iALUsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
3566 [(set GPR:$Rd, (or (and GPR:$Rn, 0xFFFF),
3567 (and (shl GPR:$Rm, pkh_lsl_amt:$sh),
3569 Requires<[IsARM, HasV6]>;
3571 // Alternate cases for PKHBT where identities eliminate some nodes.
3572 def : ARMV6Pat<(or (and GPR:$Rn, 0xFFFF), (and GPR:$Rm, 0xFFFF0000)),
3573 (PKHBT GPR:$Rn, GPR:$Rm, 0)>;
3574 def : ARMV6Pat<(or (and GPR:$Rn, 0xFFFF), (shl GPR:$Rm, imm16_31:$sh)),
3575 (PKHBT GPR:$Rn, GPR:$Rm, imm16_31:$sh)>;
3577 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
3578 // will match the pattern below.
3579 def PKHTB : APKHI<0b01101000, 1, (outs GPR:$Rd),
3580 (ins GPR:$Rn, GPR:$Rm, pkh_asr_amt:$sh),
3581 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
3582 [(set GPR:$Rd, (or (and GPR:$Rn, 0xFFFF0000),
3583 (and (sra GPR:$Rm, pkh_asr_amt:$sh),
3585 Requires<[IsARM, HasV6]>;
3587 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
3588 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
3589 def : ARMV6Pat<(or (and GPR:$src1, 0xFFFF0000), (srl GPR:$src2, imm16_31:$sh)),
3590 (PKHTB GPR:$src1, GPR:$src2, imm16_31:$sh)>;
3591 def : ARMV6Pat<(or (and GPR:$src1, 0xFFFF0000),
3592 (and (srl GPR:$src2, imm1_15:$sh), 0xFFFF)),
3593 (PKHTB GPR:$src1, GPR:$src2, imm1_15:$sh)>;
3595 //===----------------------------------------------------------------------===//
3596 // Comparison Instructions...
3599 defm CMP : AI1_cmp_irs<0b1010, "cmp",
3600 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsr,
3601 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
3603 // ARMcmpZ can re-use the above instruction definitions.
3604 def : ARMPat<(ARMcmpZ GPR:$src, so_imm:$imm),
3605 (CMPri GPR:$src, so_imm:$imm)>;
3606 def : ARMPat<(ARMcmpZ GPR:$src, GPR:$rhs),
3607 (CMPrr GPR:$src, GPR:$rhs)>;
3608 def : ARMPat<(ARMcmpZ GPR:$src, so_reg_imm:$rhs),
3609 (CMPrsi GPR:$src, so_reg_imm:$rhs)>;
3610 def : ARMPat<(ARMcmpZ GPR:$src, so_reg_reg:$rhs),
3611 (CMPrsr GPR:$src, so_reg_reg:$rhs)>;
3613 // FIXME: We have to be careful when using the CMN instruction and comparison
3614 // with 0. One would expect these two pieces of code should give identical
3630 // However, the CMN gives the *opposite* result when r1 is 0. This is because
3631 // the carry flag is set in the CMP case but not in the CMN case. In short, the
3632 // CMP instruction doesn't perform a truncate of the (logical) NOT of 0 plus the
3633 // value of r0 and the carry bit (because the "carry bit" parameter to
3634 // AddWithCarry is defined as 1 in this case, the carry flag will always be set
3635 // when r0 >= 0). The CMN instruction doesn't perform a NOT of 0 so there is
3636 // never a "carry" when this AddWithCarry is performed (because the "carry bit"
3637 // parameter to AddWithCarry is defined as 0).
3639 // When x is 0 and unsigned:
3643 // ~x + 1 = 0x1 0000 0000
3644 // (-x = 0) != (0x1 0000 0000 = ~x + 1)
3646 // Therefore, we should disable CMN when comparing against zero, until we can
3647 // limit when the CMN instruction is used (when we know that the RHS is not 0 or
3648 // when it's a comparison which doesn't look at the 'carry' flag).
3650 // (See the ARM docs for the "AddWithCarry" pseudo-code.)
3652 // This is related to <rdar://problem/7569620>.
3654 //defm CMN : AI1_cmp_irs<0b1011, "cmn",
3655 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
3657 // Note that TST/TEQ don't set all the same flags that CMP does!
3658 defm TST : AI1_cmp_irs<0b1000, "tst",
3659 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsr,
3660 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>, 1>;
3661 defm TEQ : AI1_cmp_irs<0b1001, "teq",
3662 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsr,
3663 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>, 1>;
3665 defm CMNz : AI1_cmp_irs<0b1011, "cmn",
3666 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsr,
3667 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
3669 //def : ARMPat<(ARMcmp GPR:$src, so_imm_neg:$imm),
3670 // (CMNri GPR:$src, so_imm_neg:$imm)>;
3672 def : ARMPat<(ARMcmpZ GPR:$src, so_imm_neg:$imm),
3673 (CMNzri GPR:$src, so_imm_neg:$imm)>;
3675 // Pseudo i64 compares for some floating point compares.
3676 let usesCustomInserter = 1, isBranch = 1, isTerminator = 1,
3678 def BCCi64 : PseudoInst<(outs),
3679 (ins i32imm:$cc, GPR:$lhs1, GPR:$lhs2, GPR:$rhs1, GPR:$rhs2, brtarget:$dst),
3681 [(ARMBcci64 imm:$cc, GPR:$lhs1, GPR:$lhs2, GPR:$rhs1, GPR:$rhs2, bb:$dst)]>;
3683 def BCCZi64 : PseudoInst<(outs),
3684 (ins i32imm:$cc, GPR:$lhs1, GPR:$lhs2, brtarget:$dst), IIC_Br,
3685 [(ARMBcci64 imm:$cc, GPR:$lhs1, GPR:$lhs2, 0, 0, bb:$dst)]>;
3686 } // usesCustomInserter
3689 // Conditional moves
3690 // FIXME: should be able to write a pattern for ARMcmov, but can't use
3691 // a two-value operand where a dag node expects two operands. :(
3692 let neverHasSideEffects = 1 in {
3693 def MOVCCr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$false, GPR:$Rm, pred:$p),
3695 [/*(set GPR:$Rd, (ARMcmov GPR:$false, GPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
3696 RegConstraint<"$false = $Rd">;
3697 def MOVCCsi : ARMPseudoInst<(outs GPR:$Rd),
3698 (ins GPR:$false, so_reg_imm:$shift, pred:$p),
3700 [/*(set GPR:$Rd, (ARMcmov GPR:$false, so_reg_imm:$shift,
3701 imm:$cc, CCR:$ccr))*/]>,
3702 RegConstraint<"$false = $Rd">;
3703 def MOVCCsr : ARMPseudoInst<(outs GPR:$Rd),
3704 (ins GPR:$false, so_reg_reg:$shift, pred:$p),
3706 [/*(set GPR:$Rd, (ARMcmov GPR:$false, so_reg_reg:$shift,
3707 imm:$cc, CCR:$ccr))*/]>,
3708 RegConstraint<"$false = $Rd">;
3711 let isMoveImm = 1 in
3712 def MOVCCi16 : ARMPseudoInst<(outs GPR:$Rd),
3713 (ins GPR:$false, imm0_65535_expr:$imm, pred:$p),
3716 RegConstraint<"$false = $Rd">, Requires<[IsARM, HasV6T2]>;
3718 let isMoveImm = 1 in
3719 def MOVCCi : ARMPseudoInst<(outs GPR:$Rd),
3720 (ins GPR:$false, so_imm:$imm, pred:$p),
3722 [/*(set GPR:$Rd, (ARMcmov GPR:$false, so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
3723 RegConstraint<"$false = $Rd">;
3725 // Two instruction predicate mov immediate.
3726 let isMoveImm = 1 in
3727 def MOVCCi32imm : ARMPseudoInst<(outs GPR:$Rd),
3728 (ins GPR:$false, i32imm:$src, pred:$p),
3729 8, IIC_iCMOVix2, []>, RegConstraint<"$false = $Rd">;
3731 let isMoveImm = 1 in
3732 def MVNCCi : ARMPseudoInst<(outs GPR:$Rd),
3733 (ins GPR:$false, so_imm:$imm, pred:$p),
3735 [/*(set GPR:$Rd, (ARMcmov GPR:$false, so_imm_not:$imm, imm:$cc, CCR:$ccr))*/]>,
3736 RegConstraint<"$false = $Rd">;
3737 } // neverHasSideEffects
3739 //===----------------------------------------------------------------------===//
3740 // Atomic operations intrinsics
3743 def MemBarrierOptOperand : AsmOperandClass {
3744 let Name = "MemBarrierOpt";
3745 let ParserMethod = "parseMemBarrierOptOperand";
3747 def memb_opt : Operand<i32> {
3748 let PrintMethod = "printMemBOption";
3749 let ParserMatchClass = MemBarrierOptOperand;
3752 // memory barriers protect the atomic sequences
3753 let hasSideEffects = 1 in {
3754 def DMB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
3755 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
3756 Requires<[IsARM, HasDB]> {
3758 let Inst{31-4} = 0xf57ff05;
3759 let Inst{3-0} = opt;
3763 def DSB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
3764 "dsb", "\t$opt", []>,
3765 Requires<[IsARM, HasDB]> {
3767 let Inst{31-4} = 0xf57ff04;
3768 let Inst{3-0} = opt;
3771 // ISB has only full system option
3772 def ISB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
3773 "isb", "\t$opt", []>,
3774 Requires<[IsARM, HasDB]> {
3776 let Inst{31-4} = 0xf57ff06;
3777 let Inst{3-0} = opt;
3780 let usesCustomInserter = 1 in {
3781 let Uses = [CPSR] in {
3782 def ATOMIC_LOAD_ADD_I8 : PseudoInst<
3783 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3784 [(set GPR:$dst, (atomic_load_add_8 GPR:$ptr, GPR:$incr))]>;
3785 def ATOMIC_LOAD_SUB_I8 : PseudoInst<
3786 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3787 [(set GPR:$dst, (atomic_load_sub_8 GPR:$ptr, GPR:$incr))]>;
3788 def ATOMIC_LOAD_AND_I8 : PseudoInst<
3789 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3790 [(set GPR:$dst, (atomic_load_and_8 GPR:$ptr, GPR:$incr))]>;
3791 def ATOMIC_LOAD_OR_I8 : PseudoInst<
3792 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3793 [(set GPR:$dst, (atomic_load_or_8 GPR:$ptr, GPR:$incr))]>;
3794 def ATOMIC_LOAD_XOR_I8 : PseudoInst<
3795 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3796 [(set GPR:$dst, (atomic_load_xor_8 GPR:$ptr, GPR:$incr))]>;
3797 def ATOMIC_LOAD_NAND_I8 : PseudoInst<
3798 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3799 [(set GPR:$dst, (atomic_load_nand_8 GPR:$ptr, GPR:$incr))]>;
3800 def ATOMIC_LOAD_MIN_I8 : PseudoInst<
3801 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3802 [(set GPR:$dst, (atomic_load_min_8 GPR:$ptr, GPR:$val))]>;
3803 def ATOMIC_LOAD_MAX_I8 : PseudoInst<
3804 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3805 [(set GPR:$dst, (atomic_load_max_8 GPR:$ptr, GPR:$val))]>;
3806 def ATOMIC_LOAD_UMIN_I8 : PseudoInst<
3807 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3808 [(set GPR:$dst, (atomic_load_min_8 GPR:$ptr, GPR:$val))]>;
3809 def ATOMIC_LOAD_UMAX_I8 : PseudoInst<
3810 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3811 [(set GPR:$dst, (atomic_load_max_8 GPR:$ptr, GPR:$val))]>;
3812 def ATOMIC_LOAD_ADD_I16 : PseudoInst<
3813 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3814 [(set GPR:$dst, (atomic_load_add_16 GPR:$ptr, GPR:$incr))]>;
3815 def ATOMIC_LOAD_SUB_I16 : PseudoInst<
3816 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3817 [(set GPR:$dst, (atomic_load_sub_16 GPR:$ptr, GPR:$incr))]>;
3818 def ATOMIC_LOAD_AND_I16 : PseudoInst<
3819 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3820 [(set GPR:$dst, (atomic_load_and_16 GPR:$ptr, GPR:$incr))]>;
3821 def ATOMIC_LOAD_OR_I16 : PseudoInst<
3822 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3823 [(set GPR:$dst, (atomic_load_or_16 GPR:$ptr, GPR:$incr))]>;
3824 def ATOMIC_LOAD_XOR_I16 : PseudoInst<
3825 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3826 [(set GPR:$dst, (atomic_load_xor_16 GPR:$ptr, GPR:$incr))]>;
3827 def ATOMIC_LOAD_NAND_I16 : PseudoInst<
3828 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3829 [(set GPR:$dst, (atomic_load_nand_16 GPR:$ptr, GPR:$incr))]>;
3830 def ATOMIC_LOAD_MIN_I16 : PseudoInst<
3831 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3832 [(set GPR:$dst, (atomic_load_min_16 GPR:$ptr, GPR:$val))]>;
3833 def ATOMIC_LOAD_MAX_I16 : PseudoInst<
3834 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3835 [(set GPR:$dst, (atomic_load_max_16 GPR:$ptr, GPR:$val))]>;
3836 def ATOMIC_LOAD_UMIN_I16 : PseudoInst<
3837 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3838 [(set GPR:$dst, (atomic_load_min_16 GPR:$ptr, GPR:$val))]>;
3839 def ATOMIC_LOAD_UMAX_I16 : PseudoInst<
3840 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3841 [(set GPR:$dst, (atomic_load_max_16 GPR:$ptr, GPR:$val))]>;
3842 def ATOMIC_LOAD_ADD_I32 : PseudoInst<
3843 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3844 [(set GPR:$dst, (atomic_load_add_32 GPR:$ptr, GPR:$incr))]>;
3845 def ATOMIC_LOAD_SUB_I32 : PseudoInst<
3846 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3847 [(set GPR:$dst, (atomic_load_sub_32 GPR:$ptr, GPR:$incr))]>;
3848 def ATOMIC_LOAD_AND_I32 : PseudoInst<
3849 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3850 [(set GPR:$dst, (atomic_load_and_32 GPR:$ptr, GPR:$incr))]>;
3851 def ATOMIC_LOAD_OR_I32 : PseudoInst<
3852 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3853 [(set GPR:$dst, (atomic_load_or_32 GPR:$ptr, GPR:$incr))]>;
3854 def ATOMIC_LOAD_XOR_I32 : PseudoInst<
3855 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3856 [(set GPR:$dst, (atomic_load_xor_32 GPR:$ptr, GPR:$incr))]>;
3857 def ATOMIC_LOAD_NAND_I32 : PseudoInst<
3858 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3859 [(set GPR:$dst, (atomic_load_nand_32 GPR:$ptr, GPR:$incr))]>;
3860 def ATOMIC_LOAD_MIN_I32 : PseudoInst<
3861 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3862 [(set GPR:$dst, (atomic_load_min_32 GPR:$ptr, GPR:$val))]>;
3863 def ATOMIC_LOAD_MAX_I32 : PseudoInst<
3864 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3865 [(set GPR:$dst, (atomic_load_max_32 GPR:$ptr, GPR:$val))]>;
3866 def ATOMIC_LOAD_UMIN_I32 : PseudoInst<
3867 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3868 [(set GPR:$dst, (atomic_load_min_32 GPR:$ptr, GPR:$val))]>;
3869 def ATOMIC_LOAD_UMAX_I32 : PseudoInst<
3870 (outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
3871 [(set GPR:$dst, (atomic_load_max_32 GPR:$ptr, GPR:$val))]>;
3873 def ATOMIC_SWAP_I8 : PseudoInst<
3874 (outs GPR:$dst), (ins GPR:$ptr, GPR:$new), NoItinerary,
3875 [(set GPR:$dst, (atomic_swap_8 GPR:$ptr, GPR:$new))]>;
3876 def ATOMIC_SWAP_I16 : PseudoInst<
3877 (outs GPR:$dst), (ins GPR:$ptr, GPR:$new), NoItinerary,
3878 [(set GPR:$dst, (atomic_swap_16 GPR:$ptr, GPR:$new))]>;
3879 def ATOMIC_SWAP_I32 : PseudoInst<
3880 (outs GPR:$dst), (ins GPR:$ptr, GPR:$new), NoItinerary,
3881 [(set GPR:$dst, (atomic_swap_32 GPR:$ptr, GPR:$new))]>;
3883 def ATOMIC_CMP_SWAP_I8 : PseudoInst<
3884 (outs GPR:$dst), (ins GPR:$ptr, GPR:$old, GPR:$new), NoItinerary,
3885 [(set GPR:$dst, (atomic_cmp_swap_8 GPR:$ptr, GPR:$old, GPR:$new))]>;
3886 def ATOMIC_CMP_SWAP_I16 : PseudoInst<
3887 (outs GPR:$dst), (ins GPR:$ptr, GPR:$old, GPR:$new), NoItinerary,
3888 [(set GPR:$dst, (atomic_cmp_swap_16 GPR:$ptr, GPR:$old, GPR:$new))]>;
3889 def ATOMIC_CMP_SWAP_I32 : PseudoInst<
3890 (outs GPR:$dst), (ins GPR:$ptr, GPR:$old, GPR:$new), NoItinerary,
3891 [(set GPR:$dst, (atomic_cmp_swap_32 GPR:$ptr, GPR:$old, GPR:$new))]>;
3895 let mayLoad = 1 in {
3896 def LDREXB : AIldrex<0b10, (outs GPR:$Rt), (ins addr_offset_none:$addr),
3898 "ldrexb", "\t$Rt, $addr", []>;
3899 def LDREXH : AIldrex<0b11, (outs GPR:$Rt), (ins addr_offset_none:$addr),
3900 NoItinerary, "ldrexh", "\t$Rt, $addr", []>;
3901 def LDREX : AIldrex<0b00, (outs GPR:$Rt), (ins addr_offset_none:$addr),
3902 NoItinerary, "ldrex", "\t$Rt, $addr", []>;
3903 let hasExtraDefRegAllocReq = 1 in
3904 def LDREXD: AIldrex<0b01, (outs GPR:$Rt, GPR:$Rt2),(ins addr_offset_none:$addr),
3905 NoItinerary, "ldrexd", "\t$Rt, $Rt2, $addr", []>;
3908 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
3909 def STREXB: AIstrex<0b10, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
3910 NoItinerary, "strexb", "\t$Rd, $Rt, $addr", []>;
3911 def STREXH: AIstrex<0b11, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
3912 NoItinerary, "strexh", "\t$Rd, $Rt, $addr", []>;
3913 def STREX : AIstrex<0b00, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
3914 NoItinerary, "strex", "\t$Rd, $Rt, $addr", []>;
3917 let hasExtraSrcRegAllocReq = 1, Constraints = "@earlyclobber $Rd" in
3918 def STREXD : AIstrex<0b01, (outs GPR:$Rd),
3919 (ins GPR:$Rt, GPR:$Rt2, addr_offset_none:$addr),
3920 NoItinerary, "strexd", "\t$Rd, $Rt, $Rt2, $addr", []>;
3922 // Clear-Exclusive is for disassembly only.
3923 def CLREX : AXI<(outs), (ins), MiscFrm, NoItinerary, "clrex",
3924 [/* For disassembly only; pattern left blank */]>,
3925 Requires<[IsARM, HasV7]> {
3926 let Inst{31-0} = 0b11110101011111111111000000011111;
3929 // SWP/SWPB are deprecated in V6/V7.
3930 let mayLoad = 1, mayStore = 1 in {
3931 def SWP : AIswp<0, (outs GPR:$Rt), (ins GPR:$Rt2, addr_offset_none:$addr),
3933 def SWPB: AIswp<1, (outs GPR:$Rt), (ins GPR:$Rt2, addr_offset_none:$addr),
3937 //===----------------------------------------------------------------------===//
3938 // Coprocessor Instructions.
3941 def CDP : ABI<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3942 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3943 NoItinerary, "cdp", "\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3944 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3945 imm:$CRm, imm:$opc2)]> {
3953 let Inst{3-0} = CRm;
3955 let Inst{7-5} = opc2;
3956 let Inst{11-8} = cop;
3957 let Inst{15-12} = CRd;
3958 let Inst{19-16} = CRn;
3959 let Inst{23-20} = opc1;
3962 def CDP2 : ABXI<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3963 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3964 NoItinerary, "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3965 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3966 imm:$CRm, imm:$opc2)]> {
3967 let Inst{31-28} = 0b1111;
3975 let Inst{3-0} = CRm;
3977 let Inst{7-5} = opc2;
3978 let Inst{11-8} = cop;
3979 let Inst{15-12} = CRd;
3980 let Inst{19-16} = CRn;
3981 let Inst{23-20} = opc1;
3984 class ACI<dag oops, dag iops, string opc, string asm,
3985 IndexMode im = IndexModeNone>
3986 : InoP<oops, iops, AddrModeNone, 4, im, BrFrm, NoItinerary,
3988 let Inst{27-25} = 0b110;
3991 multiclass LdStCop<bits<4> op31_28, bit load, dag ops, string opc, string cond>{
3993 def _OFFSET : ACI<(outs),
3994 !con((ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr), ops),
3995 !strconcat(opc, cond), "\tp$cop, cr$CRd, $addr"> {
3996 let Inst{31-28} = op31_28;
3997 let Inst{24} = 1; // P = 1
3998 let Inst{21} = 0; // W = 0
3999 let Inst{22} = 0; // D = 0
4000 let Inst{20} = load;
4003 def _PRE : ACI<(outs),
4004 !con((ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr), ops),
4005 !strconcat(opc, cond), "\tp$cop, cr$CRd, $addr!", IndexModePre> {
4006 let Inst{31-28} = op31_28;
4007 let Inst{24} = 1; // P = 1
4008 let Inst{21} = 1; // W = 1
4009 let Inst{22} = 0; // D = 0
4010 let Inst{20} = load;
4013 def _POST : ACI<(outs),
4014 !con((ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr), ops),
4015 !strconcat(opc, cond), "\tp$cop, cr$CRd, $addr", IndexModePost> {
4016 let Inst{31-28} = op31_28;
4017 let Inst{24} = 0; // P = 0
4018 let Inst{21} = 1; // W = 1
4019 let Inst{22} = 0; // D = 0
4020 let Inst{20} = load;
4023 def _OPTION : ACI<(outs),
4024 !con((ins nohash_imm:$cop,nohash_imm:$CRd,GPR:$base, nohash_imm:$option),
4026 !strconcat(opc, cond), "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
4027 let Inst{31-28} = op31_28;
4028 let Inst{24} = 0; // P = 0
4029 let Inst{23} = 1; // U = 1
4030 let Inst{21} = 0; // W = 0
4031 let Inst{22} = 0; // D = 0
4032 let Inst{20} = load;
4035 def L_OFFSET : ACI<(outs),
4036 !con((ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr), ops),
4037 !strconcat(!strconcat(opc, "l"), cond), "\tp$cop, cr$CRd, $addr"> {
4038 let Inst{31-28} = op31_28;
4039 let Inst{24} = 1; // P = 1
4040 let Inst{21} = 0; // W = 0
4041 let Inst{22} = 1; // D = 1
4042 let Inst{20} = load;
4045 def L_PRE : ACI<(outs),
4046 !con((ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr), ops),
4047 !strconcat(!strconcat(opc, "l"), cond), "\tp$cop, cr$CRd, $addr!",
4049 let Inst{31-28} = op31_28;
4050 let Inst{24} = 1; // P = 1
4051 let Inst{21} = 1; // W = 1
4052 let Inst{22} = 1; // D = 1
4053 let Inst{20} = load;
4056 def L_POST : ACI<(outs),
4057 !con((ins nohash_imm:$cop, nohash_imm:$CRd, addr_offset_none:$addr,
4058 postidx_imm8s4:$offset), ops),
4059 !strconcat(!strconcat(opc, "l"), cond), "\tp$cop, cr$CRd, $addr, $offset",
4061 let Inst{31-28} = op31_28;
4062 let Inst{24} = 0; // P = 0
4063 let Inst{21} = 1; // W = 1
4064 let Inst{22} = 1; // D = 1
4065 let Inst{20} = load;
4068 def L_OPTION : ACI<(outs),
4069 !con((ins nohash_imm:$cop, nohash_imm:$CRd,GPR:$base,nohash_imm:$option),
4071 !strconcat(!strconcat(opc, "l"), cond),
4072 "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
4073 let Inst{31-28} = op31_28;
4074 let Inst{24} = 0; // P = 0
4075 let Inst{23} = 1; // U = 1
4076 let Inst{21} = 0; // W = 0
4077 let Inst{22} = 1; // D = 1
4078 let Inst{20} = load;
4082 defm LDC : LdStCop<{?,?,?,?}, 1, (ins pred:$p), "ldc", "${p}">;
4083 defm LDC2 : LdStCop<0b1111, 1, (ins), "ldc2", "">;
4084 defm STC : LdStCop<{?,?,?,?}, 0, (ins pred:$p), "stc", "${p}">;
4085 defm STC2 : LdStCop<0b1111, 0, (ins), "stc2", "">;
4087 //===----------------------------------------------------------------------===//
4088 // Move between coprocessor and ARM core register -- for disassembly only
4091 class MovRCopro<string opc, bit direction, dag oops, dag iops,
4093 : ABI<0b1110, oops, iops, NoItinerary, opc,
4094 "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2", pattern> {
4095 let Inst{20} = direction;
4105 let Inst{15-12} = Rt;
4106 let Inst{11-8} = cop;
4107 let Inst{23-21} = opc1;
4108 let Inst{7-5} = opc2;
4109 let Inst{3-0} = CRm;
4110 let Inst{19-16} = CRn;
4113 def MCR : MovRCopro<"mcr", 0 /* from ARM core register to coprocessor */,
4115 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4116 c_imm:$CRm, imm0_7:$opc2),
4117 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
4118 imm:$CRm, imm:$opc2)]>;
4119 def MRC : MovRCopro<"mrc", 1 /* from coprocessor to ARM core register */,
4121 (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, c_imm:$CRm,
4124 def : ARMPat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
4125 (MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
4127 class MovRCopro2<string opc, bit direction, dag oops, dag iops,
4129 : ABXI<0b1110, oops, iops, NoItinerary,
4130 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"), pattern> {
4131 let Inst{31-28} = 0b1111;
4132 let Inst{20} = direction;
4142 let Inst{15-12} = Rt;
4143 let Inst{11-8} = cop;
4144 let Inst{23-21} = opc1;
4145 let Inst{7-5} = opc2;
4146 let Inst{3-0} = CRm;
4147 let Inst{19-16} = CRn;
4150 def MCR2 : MovRCopro2<"mcr2", 0 /* from ARM core register to coprocessor */,
4152 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4153 c_imm:$CRm, imm0_7:$opc2),
4154 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
4155 imm:$CRm, imm:$opc2)]>;
4156 def MRC2 : MovRCopro2<"mrc2", 1 /* from coprocessor to ARM core register */,
4158 (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, c_imm:$CRm,
4161 def : ARMV5TPat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn,
4162 imm:$CRm, imm:$opc2),
4163 (MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
4165 class MovRRCopro<string opc, bit direction,
4166 list<dag> pattern = [/* For disassembly only */]>
4167 : ABI<0b1100, (outs), (ins p_imm:$cop, imm0_15:$opc1,
4168 GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
4169 NoItinerary, opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm", pattern> {
4170 let Inst{23-21} = 0b010;
4171 let Inst{20} = direction;
4179 let Inst{15-12} = Rt;
4180 let Inst{19-16} = Rt2;
4181 let Inst{11-8} = cop;
4182 let Inst{7-4} = opc1;
4183 let Inst{3-0} = CRm;
4186 def MCRR : MovRRCopro<"mcrr", 0 /* from ARM core register to coprocessor */,
4187 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
4189 def MRRC : MovRRCopro<"mrrc", 1 /* from coprocessor to ARM core register */>;
4191 class MovRRCopro2<string opc, bit direction,
4192 list<dag> pattern = [/* For disassembly only */]>
4193 : ABXI<0b1100, (outs), (ins p_imm:$cop, imm0_15:$opc1,
4194 GPR:$Rt, GPR:$Rt2, c_imm:$CRm), NoItinerary,
4195 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
4196 let Inst{31-28} = 0b1111;
4197 let Inst{23-21} = 0b010;
4198 let Inst{20} = direction;
4206 let Inst{15-12} = Rt;
4207 let Inst{19-16} = Rt2;
4208 let Inst{11-8} = cop;
4209 let Inst{7-4} = opc1;
4210 let Inst{3-0} = CRm;
4213 def MCRR2 : MovRRCopro2<"mcrr2", 0 /* from ARM core register to coprocessor */,
4214 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
4216 def MRRC2 : MovRRCopro2<"mrrc2", 1 /* from coprocessor to ARM core register */>;
4218 //===----------------------------------------------------------------------===//
4219 // Move between special register and ARM core register
4222 // Move to ARM core register from Special Register
4223 def MRS : ABI<0b0001, (outs GPR:$Rd), (ins), NoItinerary,
4224 "mrs", "\t$Rd, apsr", []> {
4226 let Inst{23-16} = 0b00001111;
4227 let Inst{15-12} = Rd;
4228 let Inst{7-4} = 0b0000;
4231 def : InstAlias<"mrs${p} $Rd, cpsr", (MRS GPR:$Rd, pred:$p)>, Requires<[IsARM]>;
4233 def MRSsys : ABI<0b0001, (outs GPR:$Rd), (ins), NoItinerary,
4234 "mrs", "\t$Rd, spsr", []> {
4236 let Inst{23-16} = 0b01001111;
4237 let Inst{15-12} = Rd;
4238 let Inst{7-4} = 0b0000;
4241 // Move from ARM core register to Special Register
4243 // No need to have both system and application versions, the encodings are the
4244 // same and the assembly parser has no way to distinguish between them. The mask
4245 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
4246 // the mask with the fields to be accessed in the special register.
4247 def MSR : ABI<0b0001, (outs), (ins msr_mask:$mask, GPR:$Rn), NoItinerary,
4248 "msr", "\t$mask, $Rn", []> {
4253 let Inst{22} = mask{4}; // R bit
4254 let Inst{21-20} = 0b10;
4255 let Inst{19-16} = mask{3-0};
4256 let Inst{15-12} = 0b1111;
4257 let Inst{11-4} = 0b00000000;
4261 def MSRi : ABI<0b0011, (outs), (ins msr_mask:$mask, so_imm:$a), NoItinerary,
4262 "msr", "\t$mask, $a", []> {
4267 let Inst{22} = mask{4}; // R bit
4268 let Inst{21-20} = 0b10;
4269 let Inst{19-16} = mask{3-0};
4270 let Inst{15-12} = 0b1111;
4274 //===----------------------------------------------------------------------===//
4278 // __aeabi_read_tp preserves the registers r1-r3.
4279 // This is a pseudo inst so that we can get the encoding right,
4280 // complete with fixup for the aeabi_read_tp function.
4282 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
4283 def TPsoft : PseudoInst<(outs), (ins), IIC_Br,
4284 [(set R0, ARMthread_pointer)]>;
4287 //===----------------------------------------------------------------------===//
4288 // SJLJ Exception handling intrinsics
4289 // eh_sjlj_setjmp() is an instruction sequence to store the return
4290 // address and save #0 in R0 for the non-longjmp case.
4291 // Since by its nature we may be coming from some other function to get
4292 // here, and we're using the stack frame for the containing function to
4293 // save/restore registers, we can't keep anything live in regs across
4294 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
4295 // when we get here from a longjmp(). We force everything out of registers
4296 // except for our own input by listing the relevant registers in Defs. By
4297 // doing so, we also cause the prologue/epilogue code to actively preserve
4298 // all of the callee-saved resgisters, which is exactly what we want.
4299 // A constant value is passed in $val, and we use the location as a scratch.
4301 // These are pseudo-instructions and are lowered to individual MC-insts, so
4302 // no encoding information is necessary.
4304 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
4305 QQQQ0, QQQQ1, QQQQ2, QQQQ3 ], hasSideEffects = 1, isBarrier = 1 in {
4306 def Int_eh_sjlj_setjmp : PseudoInst<(outs), (ins GPR:$src, GPR:$val),
4308 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, GPR:$val))]>,
4309 Requires<[IsARM, HasVFP2]>;
4313 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
4314 hasSideEffects = 1, isBarrier = 1 in {
4315 def Int_eh_sjlj_setjmp_nofp : PseudoInst<(outs), (ins GPR:$src, GPR:$val),
4317 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, GPR:$val))]>,
4318 Requires<[IsARM, NoVFP]>;
4321 // FIXME: Non-Darwin version(s)
4322 let isBarrier = 1, hasSideEffects = 1, isTerminator = 1,
4323 Defs = [ R7, LR, SP ] in {
4324 def Int_eh_sjlj_longjmp : PseudoInst<(outs), (ins GPR:$src, GPR:$scratch),
4326 [(ARMeh_sjlj_longjmp GPR:$src, GPR:$scratch)]>,
4327 Requires<[IsARM, IsDarwin]>;
4330 // eh.sjlj.dispatchsetup pseudo-instruction.
4331 // This pseudo is used for ARM, Thumb1 and Thumb2. Any differences are
4332 // handled when the pseudo is expanded (which happens before any passes
4333 // that need the instruction size).
4334 let isBarrier = 1, hasSideEffects = 1 in
4335 def Int_eh_sjlj_dispatchsetup :
4336 PseudoInst<(outs), (ins GPR:$src), NoItinerary,
4337 [(ARMeh_sjlj_dispatchsetup GPR:$src)]>,
4338 Requires<[IsDarwin]>;
4340 //===----------------------------------------------------------------------===//
4341 // Non-Instruction Patterns
4344 // ARMv4 indirect branch using (MOVr PC, dst)
4345 let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in
4346 def MOVPCRX : ARMPseudoExpand<(outs), (ins GPR:$dst),
4347 4, IIC_Br, [(brind GPR:$dst)],
4348 (MOVr PC, GPR:$dst, (ops 14, zero_reg), zero_reg)>,
4349 Requires<[IsARM, NoV4T]>;
4351 // Large immediate handling.
4353 // 32-bit immediate using two piece so_imms or movw + movt.
4354 // This is a single pseudo instruction, the benefit is that it can be remat'd
4355 // as a single unit instead of having to handle reg inputs.
4356 // FIXME: Remove this when we can do generalized remat.
4357 let isReMaterializable = 1, isMoveImm = 1 in
4358 def MOVi32imm : PseudoInst<(outs GPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
4359 [(set GPR:$dst, (arm_i32imm:$src))]>,
4362 // Pseudo instruction that combines movw + movt + add pc (if PIC).
4363 // It also makes it possible to rematerialize the instructions.
4364 // FIXME: Remove this when we can do generalized remat and when machine licm
4365 // can properly the instructions.
4366 let isReMaterializable = 1 in {
4367 def MOV_ga_pcrel : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
4369 [(set GPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
4370 Requires<[IsARM, UseMovt]>;
4372 def MOV_ga_dyn : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
4374 [(set GPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
4375 Requires<[IsARM, UseMovt]>;
4377 let AddedComplexity = 10 in
4378 def MOV_ga_pcrel_ldr : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
4380 [(set GPR:$dst, (load (ARMWrapperPIC tglobaladdr:$addr)))]>,
4381 Requires<[IsARM, UseMovt]>;
4382 } // isReMaterializable
4384 // ConstantPool, GlobalAddress, and JumpTable
4385 def : ARMPat<(ARMWrapper tglobaladdr :$dst), (LEApcrel tglobaladdr :$dst)>,
4386 Requires<[IsARM, DontUseMovt]>;
4387 def : ARMPat<(ARMWrapper tconstpool :$dst), (LEApcrel tconstpool :$dst)>;
4388 def : ARMPat<(ARMWrapper tglobaladdr :$dst), (MOVi32imm tglobaladdr :$dst)>,
4389 Requires<[IsARM, UseMovt]>;
4390 def : ARMPat<(ARMWrapperJT tjumptable:$dst, imm:$id),
4391 (LEApcrelJT tjumptable:$dst, imm:$id)>;
4393 // TODO: add,sub,and, 3-instr forms?
4396 def : ARMPat<(ARMtcret tcGPR:$dst),
4397 (TCRETURNri tcGPR:$dst)>, Requires<[IsDarwin]>;
4399 def : ARMPat<(ARMtcret (i32 tglobaladdr:$dst)),
4400 (TCRETURNdi texternalsym:$dst)>, Requires<[IsDarwin]>;
4402 def : ARMPat<(ARMtcret (i32 texternalsym:$dst)),
4403 (TCRETURNdi texternalsym:$dst)>, Requires<[IsDarwin]>;
4405 def : ARMPat<(ARMtcret tcGPR:$dst),
4406 (TCRETURNriND tcGPR:$dst)>, Requires<[IsNotDarwin]>;
4408 def : ARMPat<(ARMtcret (i32 tglobaladdr:$dst)),
4409 (TCRETURNdiND texternalsym:$dst)>, Requires<[IsNotDarwin]>;
4411 def : ARMPat<(ARMtcret (i32 texternalsym:$dst)),
4412 (TCRETURNdiND texternalsym:$dst)>, Requires<[IsNotDarwin]>;
4415 def : ARMPat<(ARMcall texternalsym:$func), (BL texternalsym:$func)>,
4416 Requires<[IsARM, IsNotDarwin]>;
4417 def : ARMPat<(ARMcall texternalsym:$func), (BLr9 texternalsym:$func)>,
4418 Requires<[IsARM, IsDarwin]>;
4420 // zextload i1 -> zextload i8
4421 def : ARMPat<(zextloadi1 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
4422 def : ARMPat<(zextloadi1 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
4424 // extload -> zextload
4425 def : ARMPat<(extloadi1 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
4426 def : ARMPat<(extloadi1 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
4427 def : ARMPat<(extloadi8 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
4428 def : ARMPat<(extloadi8 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
4430 def : ARMPat<(extloadi16 addrmode3:$addr), (LDRH addrmode3:$addr)>;
4432 def : ARMPat<(extloadi8 addrmodepc:$addr), (PICLDRB addrmodepc:$addr)>;
4433 def : ARMPat<(extloadi16 addrmodepc:$addr), (PICLDRH addrmodepc:$addr)>;
4436 def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
4437 (sra (shl GPR:$b, (i32 16)), (i32 16))),
4438 (SMULBB GPR:$a, GPR:$b)>;
4439 def : ARMV5TEPat<(mul sext_16_node:$a, sext_16_node:$b),
4440 (SMULBB GPR:$a, GPR:$b)>;
4441 def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
4442 (sra GPR:$b, (i32 16))),
4443 (SMULBT GPR:$a, GPR:$b)>;
4444 def : ARMV5TEPat<(mul sext_16_node:$a, (sra GPR:$b, (i32 16))),
4445 (SMULBT GPR:$a, GPR:$b)>;
4446 def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)),
4447 (sra (shl GPR:$b, (i32 16)), (i32 16))),
4448 (SMULTB GPR:$a, GPR:$b)>;
4449 def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)), sext_16_node:$b),
4450 (SMULTB GPR:$a, GPR:$b)>;
4451 def : ARMV5TEPat<(sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
4453 (SMULWB GPR:$a, GPR:$b)>;
4454 def : ARMV5TEPat<(sra (mul GPR:$a, sext_16_node:$b), (i32 16)),
4455 (SMULWB GPR:$a, GPR:$b)>;
4457 def : ARMV5TEPat<(add GPR:$acc,
4458 (mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
4459 (sra (shl GPR:$b, (i32 16)), (i32 16)))),
4460 (SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
4461 def : ARMV5TEPat<(add GPR:$acc,
4462 (mul sext_16_node:$a, sext_16_node:$b)),
4463 (SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
4464 def : ARMV5TEPat<(add GPR:$acc,
4465 (mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
4466 (sra GPR:$b, (i32 16)))),
4467 (SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
4468 def : ARMV5TEPat<(add GPR:$acc,
4469 (mul sext_16_node:$a, (sra GPR:$b, (i32 16)))),
4470 (SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
4471 def : ARMV5TEPat<(add GPR:$acc,
4472 (mul (sra GPR:$a, (i32 16)),
4473 (sra (shl GPR:$b, (i32 16)), (i32 16)))),
4474 (SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
4475 def : ARMV5TEPat<(add GPR:$acc,
4476 (mul (sra GPR:$a, (i32 16)), sext_16_node:$b)),
4477 (SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
4478 def : ARMV5TEPat<(add GPR:$acc,
4479 (sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
4481 (SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
4482 def : ARMV5TEPat<(add GPR:$acc,
4483 (sra (mul GPR:$a, sext_16_node:$b), (i32 16))),
4484 (SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
4487 // Pre-v7 uses MCR for synchronization barriers.
4488 def : ARMPat<(ARMMemBarrierMCR GPR:$zero), (MCR 15, 0, GPR:$zero, 7, 10, 5)>,
4489 Requires<[IsARM, HasV6]>;
4491 // SXT/UXT with no rotate
4492 let AddedComplexity = 16 in {
4493 def : ARMV6Pat<(and GPR:$Src, 0x000000FF), (UXTB GPR:$Src, 0)>;
4494 def : ARMV6Pat<(and GPR:$Src, 0x0000FFFF), (UXTH GPR:$Src, 0)>;
4495 def : ARMV6Pat<(and GPR:$Src, 0x00FF00FF), (UXTB16 GPR:$Src, 0)>;
4496 def : ARMV6Pat<(add GPR:$Rn, (and GPR:$Rm, 0x00FF)),
4497 (UXTAB GPR:$Rn, GPR:$Rm, 0)>;
4498 def : ARMV6Pat<(add GPR:$Rn, (and GPR:$Rm, 0xFFFF)),
4499 (UXTAH GPR:$Rn, GPR:$Rm, 0)>;
4502 def : ARMV6Pat<(sext_inreg GPR:$Src, i8), (SXTB GPR:$Src, 0)>;
4503 def : ARMV6Pat<(sext_inreg GPR:$Src, i16), (SXTH GPR:$Src, 0)>;
4505 def : ARMV6Pat<(add GPR:$Rn, (sext_inreg GPR:$Rm, i8)),
4506 (SXTAB GPR:$Rn, GPR:$Rm, 0)>;
4507 def : ARMV6Pat<(add GPR:$Rn, (sext_inreg GPR:$Rm, i16)),
4508 (SXTAH GPR:$Rn, GPR:$Rm, 0)>;
4510 //===----------------------------------------------------------------------===//
4514 include "ARMInstrThumb.td"
4516 //===----------------------------------------------------------------------===//
4520 include "ARMInstrThumb2.td"
4522 //===----------------------------------------------------------------------===//
4523 // Floating Point Support
4526 include "ARMInstrVFP.td"
4528 //===----------------------------------------------------------------------===//
4529 // Advanced SIMD (NEON) Support
4532 include "ARMInstrNEON.td"
4534 //===----------------------------------------------------------------------===//
4535 // Assembler aliases
4539 def : InstAlias<"dmb", (DMB 0xf)>, Requires<[IsARM, HasDB]>;
4540 def : InstAlias<"dsb", (DSB 0xf)>, Requires<[IsARM, HasDB]>;
4541 def : InstAlias<"isb", (ISB 0xf)>, Requires<[IsARM, HasDB]>;
4543 // System instructions
4544 def : MnemonicAlias<"swi", "svc">;
4546 // Load / Store Multiple
4547 def : MnemonicAlias<"ldmfd", "ldm">;
4548 def : MnemonicAlias<"ldmia", "ldm">;
4549 def : MnemonicAlias<"stmfd", "stmdb">;
4550 def : MnemonicAlias<"stmia", "stm">;
4551 def : MnemonicAlias<"stmea", "stm">;
4553 // PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT when the
4554 // shift amount is zero (i.e., unspecified).
4555 def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
4556 (PKHBT GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4557 def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
4558 (PKHBT GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4560 // PUSH/POP aliases for STM/LDM
4561 def : InstAlias<"push${p} $regs",
4562 (STMDB_UPD SP, pred:$p, reglist:$regs)>;
4563 def : InstAlias<"pop${p} $regs",
4564 (LDMIA_UPD SP, pred:$p, reglist:$regs)>;
4566 // RSB two-operand forms (optional explicit destination operand)
4567 def : InstAlias<"rsb${s}${p} $Rdn, $imm",
4568 (RSBri GPR:$Rdn, GPR:$Rdn, so_imm:$imm, pred:$p, cc_out:$s)>,
4570 def : InstAlias<"rsb${s}${p} $Rdn, $Rm",
4571 (RSBrr GPR:$Rdn, GPR:$Rdn, GPR:$Rm, pred:$p, cc_out:$s)>,
4573 def : InstAlias<"rsb${s}${p} $Rdn, $shift",
4574 (RSBrsi GPR:$Rdn, GPR:$Rdn, so_reg_imm:$shift, pred:$p,
4575 cc_out:$s)>, Requires<[IsARM]>;
4576 def : InstAlias<"rsb${s}${p} $Rdn, $shift",
4577 (RSBrsr GPR:$Rdn, GPR:$Rdn, so_reg_reg:$shift, pred:$p,
4578 cc_out:$s)>, Requires<[IsARM]>;
4579 // RSC two-operand forms (optional explicit destination operand)
4580 def : InstAlias<"rsc${s}${p} $Rdn, $imm",
4581 (RSCri GPR:$Rdn, GPR:$Rdn, so_imm:$imm, pred:$p, cc_out:$s)>,
4583 def : InstAlias<"rsc${s}${p} $Rdn, $Rm",
4584 (RSCrr GPR:$Rdn, GPR:$Rdn, GPR:$Rm, pred:$p, cc_out:$s)>,
4586 def : InstAlias<"rsc${s}${p} $Rdn, $shift",
4587 (RSCrsi GPR:$Rdn, GPR:$Rdn, so_reg_imm:$shift, pred:$p,
4588 cc_out:$s)>, Requires<[IsARM]>;
4589 def : InstAlias<"rsc${s}${p} $Rdn, $shift",
4590 (RSCrsr GPR:$Rdn, GPR:$Rdn, so_reg_reg:$shift, pred:$p,
4591 cc_out:$s)>, Requires<[IsARM]>;
4593 // SSAT/USAT optional shift operand.
4594 def : InstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
4595 (SSAT GPR:$Rd, imm1_32:$sat_imm, GPR:$Rn, 0, pred:$p)>;
4596 def : InstAlias<"usat${p} $Rd, $sat_imm, $Rn",
4597 (USAT GPR:$Rd, imm0_31:$sat_imm, GPR:$Rn, 0, pred:$p)>;
4600 // Extend instruction optional rotate operand.
4601 def : InstAlias<"sxtab${p} $Rd, $Rn, $Rm",
4602 (SXTAB GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4603 def : InstAlias<"sxtah${p} $Rd, $Rn, $Rm",
4604 (SXTAH GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4605 def : InstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
4606 (SXTAB16 GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4607 def : InstAlias<"sxtb${p} $Rd, $Rm", (SXTB GPR:$Rd, GPR:$Rm, 0, pred:$p)>;
4608 def : InstAlias<"sxtb16${p} $Rd, $Rm", (SXTB16 GPR:$Rd, GPR:$Rm, 0, pred:$p)>;
4609 def : InstAlias<"sxth${p} $Rd, $Rm", (SXTH GPR:$Rd, GPR:$Rm, 0, pred:$p)>;
4611 def : InstAlias<"uxtab${p} $Rd, $Rn, $Rm",
4612 (UXTAB GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4613 def : InstAlias<"uxtah${p} $Rd, $Rn, $Rm",
4614 (UXTAH GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4615 def : InstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
4616 (UXTAB16 GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>;
4617 def : InstAlias<"uxtb${p} $Rd, $Rm", (UXTB GPR:$Rd, GPR:$Rm, 0, pred:$p)>;
4618 def : InstAlias<"uxtb16${p} $Rd, $Rm", (UXTB16 GPR:$Rd, GPR:$Rm, 0, pred:$p)>;
4619 def : InstAlias<"uxth${p} $Rd, $Rm", (UXTH GPR:$Rd, GPR:$Rm, 0, pred:$p)>;
4623 def : MnemonicAlias<"rfefa", "rfeda">;
4624 def : MnemonicAlias<"rfeea", "rfedb">;
4625 def : MnemonicAlias<"rfefd", "rfeia">;
4626 def : MnemonicAlias<"rfeed", "rfeib">;
4627 def : MnemonicAlias<"rfe", "rfeia">;
4630 def : MnemonicAlias<"srsfa", "srsda">;
4631 def : MnemonicAlias<"srsea", "srsdb">;
4632 def : MnemonicAlias<"srsfd", "srsia">;
4633 def : MnemonicAlias<"srsed", "srsib">;
4634 def : MnemonicAlias<"srs", "srsia">;
4636 // LDRSBT/LDRHT/LDRSHT post-index offset if optional.
4637 // Note that the write-back output register is a dummy operand for MC (it's
4638 // only meaningful for codegen), so we just pass zero here.
4639 // FIXME: tblgen not cooperating with argument conversions.
4640 //def : InstAlias<"ldrsbt${p} $Rt, $addr",
4641 // (LDRSBTi GPR:$Rt, GPR:$Rt, addr_offset_none:$addr, 0,pred:$p)>;
4642 //def : InstAlias<"ldrht${p} $Rt, $addr",
4643 // (LDRHTi GPR:$Rt, GPR:$Rt, addr_offset_none:$addr, 0, pred:$p)>;
4644 //def : InstAlias<"ldrsht${p} $Rt, $addr",
4645 // (LDRSHTi GPR:$Rt, GPR:$Rt, addr_offset_none:$addr, 0, pred:$p)>;