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> ]>;
21 def SDT_ARMStructByVal : SDTypeProfile<0, 4,
22 [SDTCisVT<0, i32>, SDTCisVT<1, i32>,
23 SDTCisVT<2, i32>, SDTCisVT<3, i32>]>;
25 def SDT_ARMSaveCallPC : SDTypeProfile<0, 1, []>;
27 def SDT_ARMcall : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
29 def SDT_ARMCMov : SDTypeProfile<1, 3,
30 [SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>,
33 def SDT_ARMBrcond : SDTypeProfile<0, 2,
34 [SDTCisVT<0, OtherVT>, SDTCisVT<1, i32>]>;
36 def SDT_ARMBrJT : SDTypeProfile<0, 3,
37 [SDTCisPtrTy<0>, SDTCisVT<1, i32>,
40 def SDT_ARMBr2JT : SDTypeProfile<0, 4,
41 [SDTCisPtrTy<0>, SDTCisVT<1, i32>,
42 SDTCisVT<2, i32>, SDTCisVT<3, i32>]>;
44 def SDT_ARMBCC_i64 : SDTypeProfile<0, 6,
46 SDTCisVT<1, i32>, SDTCisVT<2, i32>,
47 SDTCisVT<3, i32>, SDTCisVT<4, i32>,
48 SDTCisVT<5, OtherVT>]>;
50 def SDT_ARMAnd : SDTypeProfile<1, 2,
51 [SDTCisVT<0, i32>, SDTCisVT<1, i32>,
54 def SDT_ARMCmp : SDTypeProfile<0, 2, [SDTCisSameAs<0, 1>]>;
56 def SDT_ARMPICAdd : SDTypeProfile<1, 2, [SDTCisSameAs<0, 1>,
57 SDTCisPtrTy<1>, SDTCisVT<2, i32>]>;
59 def SDT_ARMThreadPointer : SDTypeProfile<1, 0, [SDTCisPtrTy<0>]>;
60 def SDT_ARMEH_SJLJ_Setjmp : SDTypeProfile<1, 2, [SDTCisInt<0>, SDTCisPtrTy<1>,
62 def SDT_ARMEH_SJLJ_Longjmp: SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisInt<1>]>;
64 def SDT_ARMMEMBARRIER : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
66 def SDT_ARMPREFETCH : SDTypeProfile<0, 3, [SDTCisPtrTy<0>, SDTCisSameAs<1, 2>,
69 def SDT_ARMTCRET : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
71 def SDT_ARMBFI : SDTypeProfile<1, 3, [SDTCisVT<0, i32>, SDTCisVT<1, i32>,
72 SDTCisVT<2, i32>, SDTCisVT<3, i32>]>;
74 def SDT_ARMVMAXNM : SDTypeProfile<1, 2, [SDTCisFP<0>, SDTCisFP<1>, SDTCisFP<2>]>;
75 def SDT_ARMVMINNM : SDTypeProfile<1, 2, [SDTCisFP<0>, SDTCisFP<1>, SDTCisFP<2>]>;
77 def SDTBinaryArithWithFlags : SDTypeProfile<2, 2,
80 SDTCisInt<0>, SDTCisVT<1, i32>]>;
82 // SDTBinaryArithWithFlagsInOut - RES1, CPSR = op LHS, RHS, CPSR
83 def SDTBinaryArithWithFlagsInOut : SDTypeProfile<2, 3,
90 def SDT_ARM64bitmlal : SDTypeProfile<2,4, [ SDTCisVT<0, i32>, SDTCisVT<1, i32>,
91 SDTCisVT<2, i32>, SDTCisVT<3, i32>,
92 SDTCisVT<4, i32>, SDTCisVT<5, i32> ] >;
93 def ARMUmlal : SDNode<"ARMISD::UMLAL", SDT_ARM64bitmlal>;
94 def ARMSmlal : SDNode<"ARMISD::SMLAL", SDT_ARM64bitmlal>;
97 def ARMWrapper : SDNode<"ARMISD::Wrapper", SDTIntUnaryOp>;
98 def ARMWrapperDYN : SDNode<"ARMISD::WrapperDYN", SDTIntUnaryOp>;
99 def ARMWrapperPIC : SDNode<"ARMISD::WrapperPIC", SDTIntUnaryOp>;
100 def ARMWrapperJT : SDNode<"ARMISD::WrapperJT", SDTIntBinOp>;
102 def ARMcallseq_start : SDNode<"ISD::CALLSEQ_START", SDT_ARMCallSeqStart,
103 [SDNPHasChain, SDNPSideEffect, SDNPOutGlue]>;
104 def ARMcallseq_end : SDNode<"ISD::CALLSEQ_END", SDT_ARMCallSeqEnd,
105 [SDNPHasChain, SDNPSideEffect,
106 SDNPOptInGlue, SDNPOutGlue]>;
107 def ARMcopystructbyval : SDNode<"ARMISD::COPY_STRUCT_BYVAL" ,
109 [SDNPHasChain, SDNPInGlue, SDNPOutGlue,
110 SDNPMayStore, SDNPMayLoad]>;
112 def ARMcall : SDNode<"ARMISD::CALL", SDT_ARMcall,
113 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
115 def ARMcall_pred : SDNode<"ARMISD::CALL_PRED", SDT_ARMcall,
116 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
118 def ARMcall_nolink : SDNode<"ARMISD::CALL_NOLINK", SDT_ARMcall,
119 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
122 def ARMretflag : SDNode<"ARMISD::RET_FLAG", SDTNone,
123 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
124 def ARMintretflag : SDNode<"ARMISD::INTRET_FLAG", SDT_ARMcall,
125 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
126 def ARMcmov : SDNode<"ARMISD::CMOV", SDT_ARMCMov,
129 def ARMbrcond : SDNode<"ARMISD::BRCOND", SDT_ARMBrcond,
130 [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
132 def ARMbrjt : SDNode<"ARMISD::BR_JT", SDT_ARMBrJT,
134 def ARMbr2jt : SDNode<"ARMISD::BR2_JT", SDT_ARMBr2JT,
137 def ARMBcci64 : SDNode<"ARMISD::BCC_i64", SDT_ARMBCC_i64,
140 def ARMcmp : SDNode<"ARMISD::CMP", SDT_ARMCmp,
143 def ARMcmn : SDNode<"ARMISD::CMN", SDT_ARMCmp,
146 def ARMcmpZ : SDNode<"ARMISD::CMPZ", SDT_ARMCmp,
147 [SDNPOutGlue, SDNPCommutative]>;
149 def ARMpic_add : SDNode<"ARMISD::PIC_ADD", SDT_ARMPICAdd>;
151 def ARMsrl_flag : SDNode<"ARMISD::SRL_FLAG", SDTIntUnaryOp, [SDNPOutGlue]>;
152 def ARMsra_flag : SDNode<"ARMISD::SRA_FLAG", SDTIntUnaryOp, [SDNPOutGlue]>;
153 def ARMrrx : SDNode<"ARMISD::RRX" , SDTIntUnaryOp, [SDNPInGlue ]>;
155 def ARMaddc : SDNode<"ARMISD::ADDC", SDTBinaryArithWithFlags,
157 def ARMsubc : SDNode<"ARMISD::SUBC", SDTBinaryArithWithFlags>;
158 def ARMadde : SDNode<"ARMISD::ADDE", SDTBinaryArithWithFlagsInOut>;
159 def ARMsube : SDNode<"ARMISD::SUBE", SDTBinaryArithWithFlagsInOut>;
161 def ARMthread_pointer: SDNode<"ARMISD::THREAD_POINTER", SDT_ARMThreadPointer>;
162 def ARMeh_sjlj_setjmp: SDNode<"ARMISD::EH_SJLJ_SETJMP",
163 SDT_ARMEH_SJLJ_Setjmp,
164 [SDNPHasChain, SDNPSideEffect]>;
165 def ARMeh_sjlj_longjmp: SDNode<"ARMISD::EH_SJLJ_LONGJMP",
166 SDT_ARMEH_SJLJ_Longjmp,
167 [SDNPHasChain, SDNPSideEffect]>;
169 def ARMMemBarrierMCR : SDNode<"ARMISD::MEMBARRIER_MCR", SDT_ARMMEMBARRIER,
170 [SDNPHasChain, SDNPSideEffect]>;
171 def ARMPreload : SDNode<"ARMISD::PRELOAD", SDT_ARMPREFETCH,
172 [SDNPHasChain, SDNPMayLoad, SDNPMayStore]>;
174 def ARMrbit : SDNode<"ARMISD::RBIT", SDTIntUnaryOp>;
176 def ARMtcret : SDNode<"ARMISD::TC_RETURN", SDT_ARMTCRET,
177 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
179 def ARMbfi : SDNode<"ARMISD::BFI", SDT_ARMBFI>;
181 def ARMvmaxnm : SDNode<"ARMISD::VMAXNM", SDT_ARMVMAXNM, []>;
182 def ARMvminnm : SDNode<"ARMISD::VMINNM", SDT_ARMVMINNM, []>;
184 //===----------------------------------------------------------------------===//
185 // ARM Instruction Predicate Definitions.
187 def HasV4T : Predicate<"Subtarget->hasV4TOps()">,
188 AssemblerPredicate<"HasV4TOps", "armv4t">;
189 def NoV4T : Predicate<"!Subtarget->hasV4TOps()">;
190 def HasV5T : Predicate<"Subtarget->hasV5TOps()">;
191 def HasV5TE : Predicate<"Subtarget->hasV5TEOps()">,
192 AssemblerPredicate<"HasV5TEOps", "armv5te">;
193 def HasV6 : Predicate<"Subtarget->hasV6Ops()">,
194 AssemblerPredicate<"HasV6Ops", "armv6">;
195 def NoV6 : Predicate<"!Subtarget->hasV6Ops()">;
196 def HasV6M : Predicate<"Subtarget->hasV6MOps()">,
197 AssemblerPredicate<"HasV6MOps",
198 "armv6m or armv6t2">;
199 def HasV6T2 : Predicate<"Subtarget->hasV6T2Ops()">,
200 AssemblerPredicate<"HasV6T2Ops", "armv6t2">;
201 def NoV6T2 : Predicate<"!Subtarget->hasV6T2Ops()">;
202 def HasV7 : Predicate<"Subtarget->hasV7Ops()">,
203 AssemblerPredicate<"HasV7Ops", "armv7">;
204 def HasV8 : Predicate<"Subtarget->hasV8Ops()">,
205 AssemblerPredicate<"HasV8Ops", "armv8">;
206 def PreV8 : Predicate<"!Subtarget->hasV8Ops()">,
207 AssemblerPredicate<"!HasV8Ops", "armv7 or earlier">;
208 def NoVFP : Predicate<"!Subtarget->hasVFP2()">;
209 def HasVFP2 : Predicate<"Subtarget->hasVFP2()">,
210 AssemblerPredicate<"FeatureVFP2", "VFP2">;
211 def HasVFP3 : Predicate<"Subtarget->hasVFP3()">,
212 AssemblerPredicate<"FeatureVFP3", "VFP3">;
213 def HasVFP4 : Predicate<"Subtarget->hasVFP4()">,
214 AssemblerPredicate<"FeatureVFP4", "VFP4">;
215 def HasDPVFP : Predicate<"!Subtarget->isFPOnlySP()">,
216 AssemblerPredicate<"!FeatureVFPOnlySP",
217 "double precision VFP">;
218 def HasFPARMv8 : Predicate<"Subtarget->hasFPARMv8()">,
219 AssemblerPredicate<"FeatureFPARMv8", "FPARMv8">;
220 def HasNEON : Predicate<"Subtarget->hasNEON()">,
221 AssemblerPredicate<"FeatureNEON", "NEON">;
222 def HasCrypto : Predicate<"Subtarget->hasCrypto()">,
223 AssemblerPredicate<"FeatureCrypto", "crypto">;
224 def HasFP16 : Predicate<"Subtarget->hasFP16()">,
225 AssemblerPredicate<"FeatureFP16","half-float">;
226 def HasDivide : Predicate<"Subtarget->hasDivide()">,
227 AssemblerPredicate<"FeatureHWDiv", "divide in THUMB">;
228 def HasDivideInARM : Predicate<"Subtarget->hasDivideInARMMode()">,
229 AssemblerPredicate<"FeatureHWDivARM", "divide in ARM">;
230 def HasT2ExtractPack : Predicate<"Subtarget->hasT2ExtractPack()">,
231 AssemblerPredicate<"FeatureT2XtPk",
233 def HasThumb2DSP : Predicate<"Subtarget->hasThumb2DSP()">,
234 AssemblerPredicate<"FeatureDSPThumb2",
236 def HasDB : Predicate<"Subtarget->hasDataBarrier()">,
237 AssemblerPredicate<"FeatureDB",
239 def HasMP : Predicate<"Subtarget->hasMPExtension()">,
240 AssemblerPredicate<"FeatureMP",
242 def HasTrustZone : Predicate<"Subtarget->hasTrustZone()">,
243 AssemblerPredicate<"FeatureTrustZone",
245 def UseNEONForFP : Predicate<"Subtarget->useNEONForSinglePrecisionFP()">;
246 def DontUseNEONForFP : Predicate<"!Subtarget->useNEONForSinglePrecisionFP()">;
247 def IsThumb : Predicate<"Subtarget->isThumb()">,
248 AssemblerPredicate<"ModeThumb", "thumb">;
249 def IsThumb1Only : Predicate<"Subtarget->isThumb1Only()">;
250 def IsThumb2 : Predicate<"Subtarget->isThumb2()">,
251 AssemblerPredicate<"ModeThumb,FeatureThumb2",
253 def IsMClass : Predicate<"Subtarget->isMClass()">,
254 AssemblerPredicate<"FeatureMClass", "armv*m">;
255 def IsNotMClass : Predicate<"!Subtarget->isMClass()">,
256 AssemblerPredicate<"!FeatureMClass",
258 def IsARM : Predicate<"!Subtarget->isThumb()">,
259 AssemblerPredicate<"!ModeThumb", "arm-mode">;
260 def IsIOS : Predicate<"Subtarget->isTargetIOS()">;
261 def IsNotIOS : Predicate<"!Subtarget->isTargetIOS()">;
262 def IsNaCl : Predicate<"Subtarget->isTargetNaCl()">;
263 def UseNaClTrap : Predicate<"Subtarget->useNaClTrap()">,
264 AssemblerPredicate<"FeatureNaClTrap", "NaCl">;
265 def DontUseNaClTrap : Predicate<"!Subtarget->useNaClTrap()">;
267 // FIXME: Eventually this will be just "hasV6T2Ops".
268 def UseMovt : Predicate<"Subtarget->useMovt()">;
269 def DontUseMovt : Predicate<"!Subtarget->useMovt()">;
270 def UseFPVMLx : Predicate<"Subtarget->useFPVMLx()">;
271 def UseMulOps : Predicate<"Subtarget->useMulOps()">;
273 // Prefer fused MAC for fp mul + add over fp VMLA / VMLS if they are available.
274 // But only select them if more precision in FP computation is allowed.
275 // Do not use them for Darwin platforms.
276 def UseFusedMAC : Predicate<"(TM.Options.AllowFPOpFusion =="
277 " FPOpFusion::Fast) && "
278 "!Subtarget->isTargetDarwin()">;
279 def DontUseFusedMAC : Predicate<"!(TM.Options.AllowFPOpFusion =="
280 " FPOpFusion::Fast &&"
281 " Subtarget->hasVFP4()) || "
282 "Subtarget->isTargetDarwin()">;
284 // VGETLNi32 is microcoded on Swift - prefer VMOV.
285 def HasFastVGETLNi32 : Predicate<"!Subtarget->isSwift()">;
286 def HasSlowVGETLNi32 : Predicate<"Subtarget->isSwift()">;
288 // VDUP.32 is microcoded on Swift - prefer VMOV.
289 def HasFastVDUP32 : Predicate<"!Subtarget->isSwift()">;
290 def HasSlowVDUP32 : Predicate<"Subtarget->isSwift()">;
292 // Cortex-A9 prefers VMOVSR to VMOVDRR even when using NEON for scalar FP, as
293 // this allows more effective execution domain optimization. See
294 // setExecutionDomain().
295 def UseVMOVSR : Predicate<"Subtarget->isCortexA9() || !Subtarget->useNEONForSinglePrecisionFP()">;
296 def DontUseVMOVSR : Predicate<"!Subtarget->isCortexA9() && Subtarget->useNEONForSinglePrecisionFP()">;
298 def IsLE : Predicate<"getTargetLowering()->isLittleEndian()">;
299 def IsBE : Predicate<"getTargetLowering()->isBigEndian()">;
301 //===----------------------------------------------------------------------===//
302 // ARM Flag Definitions.
304 class RegConstraint<string C> {
305 string Constraints = C;
308 //===----------------------------------------------------------------------===//
309 // ARM specific transformation functions and pattern fragments.
312 // imm_neg_XFORM - Return the negation of an i32 immediate value.
313 def imm_neg_XFORM : SDNodeXForm<imm, [{
314 return CurDAG->getTargetConstant(-(int)N->getZExtValue(), MVT::i32);
317 // imm_not_XFORM - Return the complement of a i32 immediate value.
318 def imm_not_XFORM : SDNodeXForm<imm, [{
319 return CurDAG->getTargetConstant(~(int)N->getZExtValue(), MVT::i32);
322 /// imm16_31 predicate - True if the 32-bit immediate is in the range [16,31].
323 def imm16_31 : ImmLeaf<i32, [{
324 return (int32_t)Imm >= 16 && (int32_t)Imm < 32;
327 def so_imm_neg_asmoperand : AsmOperandClass { let Name = "ARMSOImmNeg"; }
328 def so_imm_neg : Operand<i32>, PatLeaf<(imm), [{
329 unsigned Value = -(unsigned)N->getZExtValue();
330 return Value && ARM_AM::getSOImmVal(Value) != -1;
332 let ParserMatchClass = so_imm_neg_asmoperand;
335 // Note: this pattern doesn't require an encoder method and such, as it's
336 // only used on aliases (Pat<> and InstAlias<>). The actual encoding
337 // is handled by the destination instructions, which use so_imm.
338 def so_imm_not_asmoperand : AsmOperandClass { let Name = "ARMSOImmNot"; }
339 def so_imm_not : Operand<i32>, PatLeaf<(imm), [{
340 return ARM_AM::getSOImmVal(~(uint32_t)N->getZExtValue()) != -1;
342 let ParserMatchClass = so_imm_not_asmoperand;
345 // sext_16_node predicate - True if the SDNode is sign-extended 16 or more bits.
346 def sext_16_node : PatLeaf<(i32 GPR:$a), [{
347 return CurDAG->ComputeNumSignBits(SDValue(N,0)) >= 17;
350 /// Split a 32-bit immediate into two 16 bit parts.
351 def hi16 : SDNodeXForm<imm, [{
352 return CurDAG->getTargetConstant((uint32_t)N->getZExtValue() >> 16, MVT::i32);
355 def lo16AllZero : PatLeaf<(i32 imm), [{
356 // Returns true if all low 16-bits are 0.
357 return (((uint32_t)N->getZExtValue()) & 0xFFFFUL) == 0;
360 class BinOpWithFlagFrag<dag res> :
361 PatFrag<(ops node:$LHS, node:$RHS, node:$FLAG), res>;
362 class BinOpFrag<dag res> : PatFrag<(ops node:$LHS, node:$RHS), res>;
363 class UnOpFrag <dag res> : PatFrag<(ops node:$Src), res>;
365 // An 'and' node with a single use.
366 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
367 return N->hasOneUse();
370 // An 'xor' node with a single use.
371 def xor_su : PatFrag<(ops node:$lhs, node:$rhs), (xor node:$lhs, node:$rhs), [{
372 return N->hasOneUse();
375 // An 'fmul' node with a single use.
376 def fmul_su : PatFrag<(ops node:$lhs, node:$rhs), (fmul node:$lhs, node:$rhs),[{
377 return N->hasOneUse();
380 // An 'fadd' node which checks for single non-hazardous use.
381 def fadd_mlx : PatFrag<(ops node:$lhs, node:$rhs),(fadd node:$lhs, node:$rhs),[{
382 return hasNoVMLxHazardUse(N);
385 // An 'fsub' node which checks for single non-hazardous use.
386 def fsub_mlx : PatFrag<(ops node:$lhs, node:$rhs),(fsub node:$lhs, node:$rhs),[{
387 return hasNoVMLxHazardUse(N);
390 //===----------------------------------------------------------------------===//
391 // Operand Definitions.
394 // Immediate operands with a shared generic asm render method.
395 class ImmAsmOperand : AsmOperandClass { let RenderMethod = "addImmOperands"; }
398 // FIXME: rename brtarget to t2_brtarget
399 def brtarget : Operand<OtherVT> {
400 let EncoderMethod = "getBranchTargetOpValue";
401 let OperandType = "OPERAND_PCREL";
402 let DecoderMethod = "DecodeT2BROperand";
405 // FIXME: get rid of this one?
406 def uncondbrtarget : Operand<OtherVT> {
407 let EncoderMethod = "getUnconditionalBranchTargetOpValue";
408 let OperandType = "OPERAND_PCREL";
411 // Branch target for ARM. Handles conditional/unconditional
412 def br_target : Operand<OtherVT> {
413 let EncoderMethod = "getARMBranchTargetOpValue";
414 let OperandType = "OPERAND_PCREL";
418 // FIXME: rename bltarget to t2_bl_target?
419 def bltarget : Operand<i32> {
420 // Encoded the same as branch targets.
421 let EncoderMethod = "getBranchTargetOpValue";
422 let OperandType = "OPERAND_PCREL";
425 // Call target for ARM. Handles conditional/unconditional
426 // FIXME: rename bl_target to t2_bltarget?
427 def bl_target : Operand<i32> {
428 let EncoderMethod = "getARMBLTargetOpValue";
429 let OperandType = "OPERAND_PCREL";
432 def blx_target : Operand<i32> {
433 let EncoderMethod = "getARMBLXTargetOpValue";
434 let OperandType = "OPERAND_PCREL";
437 // A list of registers separated by comma. Used by load/store multiple.
438 def RegListAsmOperand : AsmOperandClass { let Name = "RegList"; }
439 def reglist : Operand<i32> {
440 let EncoderMethod = "getRegisterListOpValue";
441 let ParserMatchClass = RegListAsmOperand;
442 let PrintMethod = "printRegisterList";
443 let DecoderMethod = "DecodeRegListOperand";
446 def GPRPairOp : RegisterOperand<GPRPair, "printGPRPairOperand">;
448 def DPRRegListAsmOperand : AsmOperandClass { let Name = "DPRRegList"; }
449 def dpr_reglist : Operand<i32> {
450 let EncoderMethod = "getRegisterListOpValue";
451 let ParserMatchClass = DPRRegListAsmOperand;
452 let PrintMethod = "printRegisterList";
453 let DecoderMethod = "DecodeDPRRegListOperand";
456 def SPRRegListAsmOperand : AsmOperandClass { let Name = "SPRRegList"; }
457 def spr_reglist : Operand<i32> {
458 let EncoderMethod = "getRegisterListOpValue";
459 let ParserMatchClass = SPRRegListAsmOperand;
460 let PrintMethod = "printRegisterList";
461 let DecoderMethod = "DecodeSPRRegListOperand";
464 // An operand for the CONSTPOOL_ENTRY pseudo-instruction.
465 def cpinst_operand : Operand<i32> {
466 let PrintMethod = "printCPInstOperand";
470 def pclabel : Operand<i32> {
471 let PrintMethod = "printPCLabel";
474 // ADR instruction labels.
475 def AdrLabelAsmOperand : AsmOperandClass { let Name = "AdrLabel"; }
476 def adrlabel : Operand<i32> {
477 let EncoderMethod = "getAdrLabelOpValue";
478 let ParserMatchClass = AdrLabelAsmOperand;
479 let PrintMethod = "printAdrLabelOperand<0>";
482 def neon_vcvt_imm32 : Operand<i32> {
483 let EncoderMethod = "getNEONVcvtImm32OpValue";
484 let DecoderMethod = "DecodeVCVTImmOperand";
487 // rot_imm: An integer that encodes a rotate amount. Must be 8, 16, or 24.
488 def rot_imm_XFORM: SDNodeXForm<imm, [{
489 switch (N->getZExtValue()){
491 case 0: return CurDAG->getTargetConstant(0, MVT::i32);
492 case 8: return CurDAG->getTargetConstant(1, MVT::i32);
493 case 16: return CurDAG->getTargetConstant(2, MVT::i32);
494 case 24: return CurDAG->getTargetConstant(3, MVT::i32);
497 def RotImmAsmOperand : AsmOperandClass {
499 let ParserMethod = "parseRotImm";
501 def rot_imm : Operand<i32>, PatLeaf<(i32 imm), [{
502 int32_t v = N->getZExtValue();
503 return v == 8 || v == 16 || v == 24; }],
505 let PrintMethod = "printRotImmOperand";
506 let ParserMatchClass = RotImmAsmOperand;
509 // shift_imm: An integer that encodes a shift amount and the type of shift
510 // (asr or lsl). The 6-bit immediate encodes as:
513 // {4-0} imm5 shift amount.
514 // asr #32 encoded as imm5 == 0.
515 def ShifterImmAsmOperand : AsmOperandClass {
516 let Name = "ShifterImm";
517 let ParserMethod = "parseShifterImm";
519 def shift_imm : Operand<i32> {
520 let PrintMethod = "printShiftImmOperand";
521 let ParserMatchClass = ShifterImmAsmOperand;
524 // shifter_operand operands: so_reg_reg, so_reg_imm, and so_imm.
525 def ShiftedRegAsmOperand : AsmOperandClass { let Name = "RegShiftedReg"; }
526 def so_reg_reg : Operand<i32>, // reg reg imm
527 ComplexPattern<i32, 3, "SelectRegShifterOperand",
528 [shl, srl, sra, rotr]> {
529 let EncoderMethod = "getSORegRegOpValue";
530 let PrintMethod = "printSORegRegOperand";
531 let DecoderMethod = "DecodeSORegRegOperand";
532 let ParserMatchClass = ShiftedRegAsmOperand;
533 let MIOperandInfo = (ops GPRnopc, GPRnopc, i32imm);
536 def ShiftedImmAsmOperand : AsmOperandClass { let Name = "RegShiftedImm"; }
537 def so_reg_imm : Operand<i32>, // reg imm
538 ComplexPattern<i32, 2, "SelectImmShifterOperand",
539 [shl, srl, sra, rotr]> {
540 let EncoderMethod = "getSORegImmOpValue";
541 let PrintMethod = "printSORegImmOperand";
542 let DecoderMethod = "DecodeSORegImmOperand";
543 let ParserMatchClass = ShiftedImmAsmOperand;
544 let MIOperandInfo = (ops GPR, i32imm);
547 // FIXME: Does this need to be distinct from so_reg?
548 def shift_so_reg_reg : Operand<i32>, // reg reg imm
549 ComplexPattern<i32, 3, "SelectShiftRegShifterOperand",
550 [shl,srl,sra,rotr]> {
551 let EncoderMethod = "getSORegRegOpValue";
552 let PrintMethod = "printSORegRegOperand";
553 let DecoderMethod = "DecodeSORegRegOperand";
554 let ParserMatchClass = ShiftedRegAsmOperand;
555 let MIOperandInfo = (ops GPR, GPR, i32imm);
558 // FIXME: Does this need to be distinct from so_reg?
559 def shift_so_reg_imm : Operand<i32>, // reg reg imm
560 ComplexPattern<i32, 2, "SelectShiftImmShifterOperand",
561 [shl,srl,sra,rotr]> {
562 let EncoderMethod = "getSORegImmOpValue";
563 let PrintMethod = "printSORegImmOperand";
564 let DecoderMethod = "DecodeSORegImmOperand";
565 let ParserMatchClass = ShiftedImmAsmOperand;
566 let MIOperandInfo = (ops GPR, i32imm);
570 // so_imm - Match a 32-bit shifter_operand immediate operand, which is an
571 // 8-bit immediate rotated by an arbitrary number of bits.
572 def SOImmAsmOperand: ImmAsmOperand { let Name = "ARMSOImm"; }
573 def so_imm : Operand<i32>, ImmLeaf<i32, [{
574 return ARM_AM::getSOImmVal(Imm) != -1;
576 let EncoderMethod = "getSOImmOpValue";
577 let ParserMatchClass = SOImmAsmOperand;
578 let DecoderMethod = "DecodeSOImmOperand";
581 // Break so_imm's up into two pieces. This handles immediates with up to 16
582 // bits set in them. This uses so_imm2part to match and so_imm2part_[12] to
583 // get the first/second pieces.
584 def so_imm2part : PatLeaf<(imm), [{
585 return ARM_AM::isSOImmTwoPartVal((unsigned)N->getZExtValue());
588 /// arm_i32imm - True for +V6T2, or true only if so_imm2part is true.
590 def arm_i32imm : PatLeaf<(imm), [{
591 if (Subtarget->hasV6T2Ops())
593 return ARM_AM::isSOImmTwoPartVal((unsigned)N->getZExtValue());
596 /// imm0_1 predicate - Immediate in the range [0,1].
597 def Imm0_1AsmOperand: ImmAsmOperand { let Name = "Imm0_1"; }
598 def imm0_1 : Operand<i32> { let ParserMatchClass = Imm0_1AsmOperand; }
600 /// imm0_3 predicate - Immediate in the range [0,3].
601 def Imm0_3AsmOperand: ImmAsmOperand { let Name = "Imm0_3"; }
602 def imm0_3 : Operand<i32> { let ParserMatchClass = Imm0_3AsmOperand; }
604 /// imm0_7 predicate - Immediate in the range [0,7].
605 def Imm0_7AsmOperand: ImmAsmOperand { let Name = "Imm0_7"; }
606 def imm0_7 : Operand<i32>, ImmLeaf<i32, [{
607 return Imm >= 0 && Imm < 8;
609 let ParserMatchClass = Imm0_7AsmOperand;
612 /// imm8 predicate - Immediate is exactly 8.
613 def Imm8AsmOperand: ImmAsmOperand { let Name = "Imm8"; }
614 def imm8 : Operand<i32>, ImmLeaf<i32, [{ return Imm == 8; }]> {
615 let ParserMatchClass = Imm8AsmOperand;
618 /// imm16 predicate - Immediate is exactly 16.
619 def Imm16AsmOperand: ImmAsmOperand { let Name = "Imm16"; }
620 def imm16 : Operand<i32>, ImmLeaf<i32, [{ return Imm == 16; }]> {
621 let ParserMatchClass = Imm16AsmOperand;
624 /// imm32 predicate - Immediate is exactly 32.
625 def Imm32AsmOperand: ImmAsmOperand { let Name = "Imm32"; }
626 def imm32 : Operand<i32>, ImmLeaf<i32, [{ return Imm == 32; }]> {
627 let ParserMatchClass = Imm32AsmOperand;
630 /// imm1_7 predicate - Immediate in the range [1,7].
631 def Imm1_7AsmOperand: ImmAsmOperand { let Name = "Imm1_7"; }
632 def imm1_7 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm < 8; }]> {
633 let ParserMatchClass = Imm1_7AsmOperand;
636 /// imm1_15 predicate - Immediate in the range [1,15].
637 def Imm1_15AsmOperand: ImmAsmOperand { let Name = "Imm1_15"; }
638 def imm1_15 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm < 16; }]> {
639 let ParserMatchClass = Imm1_15AsmOperand;
642 /// imm1_31 predicate - Immediate in the range [1,31].
643 def Imm1_31AsmOperand: ImmAsmOperand { let Name = "Imm1_31"; }
644 def imm1_31 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm < 32; }]> {
645 let ParserMatchClass = Imm1_31AsmOperand;
648 /// imm0_15 predicate - Immediate in the range [0,15].
649 def Imm0_15AsmOperand: ImmAsmOperand {
650 let Name = "Imm0_15";
651 let DiagnosticType = "ImmRange0_15";
653 def imm0_15 : Operand<i32>, ImmLeaf<i32, [{
654 return Imm >= 0 && Imm < 16;
656 let ParserMatchClass = Imm0_15AsmOperand;
659 /// imm0_31 predicate - True if the 32-bit immediate is in the range [0,31].
660 def Imm0_31AsmOperand: ImmAsmOperand { let Name = "Imm0_31"; }
661 def imm0_31 : Operand<i32>, ImmLeaf<i32, [{
662 return Imm >= 0 && Imm < 32;
664 let ParserMatchClass = Imm0_31AsmOperand;
667 /// imm0_32 predicate - True if the 32-bit immediate is in the range [0,32].
668 def Imm0_32AsmOperand: ImmAsmOperand { let Name = "Imm0_32"; }
669 def imm0_32 : Operand<i32>, ImmLeaf<i32, [{
670 return Imm >= 0 && Imm < 32;
672 let ParserMatchClass = Imm0_32AsmOperand;
675 /// imm0_63 predicate - True if the 32-bit immediate is in the range [0,63].
676 def Imm0_63AsmOperand: ImmAsmOperand { let Name = "Imm0_63"; }
677 def imm0_63 : Operand<i32>, ImmLeaf<i32, [{
678 return Imm >= 0 && Imm < 64;
680 let ParserMatchClass = Imm0_63AsmOperand;
683 /// imm0_239 predicate - Immediate in the range [0,239].
684 def Imm0_239AsmOperand : ImmAsmOperand {
685 let Name = "Imm0_239";
686 let DiagnosticType = "ImmRange0_239";
688 def imm0_239 : Operand<i32>, ImmLeaf<i32, [{ return Imm >= 0 && Imm < 240; }]> {
689 let ParserMatchClass = Imm0_239AsmOperand;
692 /// imm0_255 predicate - Immediate in the range [0,255].
693 def Imm0_255AsmOperand : ImmAsmOperand { let Name = "Imm0_255"; }
694 def imm0_255 : Operand<i32>, ImmLeaf<i32, [{ return Imm >= 0 && Imm < 256; }]> {
695 let ParserMatchClass = Imm0_255AsmOperand;
698 /// imm0_65535 - An immediate is in the range [0.65535].
699 def Imm0_65535AsmOperand: ImmAsmOperand { let Name = "Imm0_65535"; }
700 def imm0_65535 : Operand<i32>, ImmLeaf<i32, [{
701 return Imm >= 0 && Imm < 65536;
703 let ParserMatchClass = Imm0_65535AsmOperand;
706 // imm0_65535_neg - An immediate whose negative value is in the range [0.65535].
707 def imm0_65535_neg : Operand<i32>, ImmLeaf<i32, [{
708 return -Imm >= 0 && -Imm < 65536;
711 // imm0_65535_expr - For movt/movw - 16-bit immediate that can also reference
712 // a relocatable expression.
714 // FIXME: This really needs a Thumb version separate from the ARM version.
715 // While the range is the same, and can thus use the same match class,
716 // the encoding is different so it should have a different encoder method.
717 def Imm0_65535ExprAsmOperand: ImmAsmOperand { let Name = "Imm0_65535Expr"; }
718 def imm0_65535_expr : Operand<i32> {
719 let EncoderMethod = "getHiLo16ImmOpValue";
720 let ParserMatchClass = Imm0_65535ExprAsmOperand;
723 def Imm256_65535ExprAsmOperand: ImmAsmOperand { let Name = "Imm256_65535Expr"; }
724 def imm256_65535_expr : Operand<i32> {
725 let ParserMatchClass = Imm256_65535ExprAsmOperand;
728 /// imm24b - True if the 32-bit immediate is encodable in 24 bits.
729 def Imm24bitAsmOperand: ImmAsmOperand { let Name = "Imm24bit"; }
730 def imm24b : Operand<i32>, ImmLeaf<i32, [{
731 return Imm >= 0 && Imm <= 0xffffff;
733 let ParserMatchClass = Imm24bitAsmOperand;
737 /// bf_inv_mask_imm predicate - An AND mask to clear an arbitrary width bitfield
739 def BitfieldAsmOperand : AsmOperandClass {
740 let Name = "Bitfield";
741 let ParserMethod = "parseBitfield";
744 def bf_inv_mask_imm : Operand<i32>,
746 return ARM::isBitFieldInvertedMask(N->getZExtValue());
748 let EncoderMethod = "getBitfieldInvertedMaskOpValue";
749 let PrintMethod = "printBitfieldInvMaskImmOperand";
750 let DecoderMethod = "DecodeBitfieldMaskOperand";
751 let ParserMatchClass = BitfieldAsmOperand;
754 def imm1_32_XFORM: SDNodeXForm<imm, [{
755 return CurDAG->getTargetConstant((int)N->getZExtValue() - 1, MVT::i32);
757 def Imm1_32AsmOperand: AsmOperandClass { let Name = "Imm1_32"; }
758 def imm1_32 : Operand<i32>, PatLeaf<(imm), [{
759 uint64_t Imm = N->getZExtValue();
760 return Imm > 0 && Imm <= 32;
763 let PrintMethod = "printImmPlusOneOperand";
764 let ParserMatchClass = Imm1_32AsmOperand;
767 def imm1_16_XFORM: SDNodeXForm<imm, [{
768 return CurDAG->getTargetConstant((int)N->getZExtValue() - 1, MVT::i32);
770 def Imm1_16AsmOperand: AsmOperandClass { let Name = "Imm1_16"; }
771 def imm1_16 : Operand<i32>, PatLeaf<(imm), [{ return Imm > 0 && Imm <= 16; }],
773 let PrintMethod = "printImmPlusOneOperand";
774 let ParserMatchClass = Imm1_16AsmOperand;
777 // Define ARM specific addressing modes.
778 // addrmode_imm12 := reg +/- imm12
780 def MemImm12OffsetAsmOperand : AsmOperandClass { let Name = "MemImm12Offset"; }
781 class AddrMode_Imm12 : Operand<i32>,
782 ComplexPattern<i32, 2, "SelectAddrModeImm12", []> {
783 // 12-bit immediate operand. Note that instructions using this encode
784 // #0 and #-0 differently. We flag #-0 as the magic value INT32_MIN. All other
785 // immediate values are as normal.
787 let EncoderMethod = "getAddrModeImm12OpValue";
788 let DecoderMethod = "DecodeAddrModeImm12Operand";
789 let ParserMatchClass = MemImm12OffsetAsmOperand;
790 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
793 def addrmode_imm12 : AddrMode_Imm12 {
794 let PrintMethod = "printAddrModeImm12Operand<false>";
797 def addrmode_imm12_pre : AddrMode_Imm12 {
798 let PrintMethod = "printAddrModeImm12Operand<true>";
801 // ldst_so_reg := reg +/- reg shop imm
803 def MemRegOffsetAsmOperand : AsmOperandClass { let Name = "MemRegOffset"; }
804 def ldst_so_reg : Operand<i32>,
805 ComplexPattern<i32, 3, "SelectLdStSOReg", []> {
806 let EncoderMethod = "getLdStSORegOpValue";
807 // FIXME: Simplify the printer
808 let PrintMethod = "printAddrMode2Operand";
809 let DecoderMethod = "DecodeSORegMemOperand";
810 let ParserMatchClass = MemRegOffsetAsmOperand;
811 let MIOperandInfo = (ops GPR:$base, GPRnopc:$offsreg, i32imm:$shift);
814 // postidx_imm8 := +/- [0,255]
817 // {8} 1 is imm8 is non-negative. 0 otherwise.
818 // {7-0} [0,255] imm8 value.
819 def PostIdxImm8AsmOperand : AsmOperandClass { let Name = "PostIdxImm8"; }
820 def postidx_imm8 : Operand<i32> {
821 let PrintMethod = "printPostIdxImm8Operand";
822 let ParserMatchClass = PostIdxImm8AsmOperand;
823 let MIOperandInfo = (ops i32imm);
826 // postidx_imm8s4 := +/- [0,1020]
829 // {8} 1 is imm8 is non-negative. 0 otherwise.
830 // {7-0} [0,255] imm8 value, scaled by 4.
831 def PostIdxImm8s4AsmOperand : AsmOperandClass { let Name = "PostIdxImm8s4"; }
832 def postidx_imm8s4 : Operand<i32> {
833 let PrintMethod = "printPostIdxImm8s4Operand";
834 let ParserMatchClass = PostIdxImm8s4AsmOperand;
835 let MIOperandInfo = (ops i32imm);
839 // postidx_reg := +/- reg
841 def PostIdxRegAsmOperand : AsmOperandClass {
842 let Name = "PostIdxReg";
843 let ParserMethod = "parsePostIdxReg";
845 def postidx_reg : Operand<i32> {
846 let EncoderMethod = "getPostIdxRegOpValue";
847 let DecoderMethod = "DecodePostIdxReg";
848 let PrintMethod = "printPostIdxRegOperand";
849 let ParserMatchClass = PostIdxRegAsmOperand;
850 let MIOperandInfo = (ops GPRnopc, i32imm);
854 // addrmode2 := reg +/- imm12
855 // := reg +/- reg shop imm
857 // FIXME: addrmode2 should be refactored the rest of the way to always
858 // use explicit imm vs. reg versions above (addrmode_imm12 and ldst_so_reg).
859 def AddrMode2AsmOperand : AsmOperandClass { let Name = "AddrMode2"; }
860 def addrmode2 : Operand<i32>,
861 ComplexPattern<i32, 3, "SelectAddrMode2", []> {
862 let EncoderMethod = "getAddrMode2OpValue";
863 let PrintMethod = "printAddrMode2Operand";
864 let ParserMatchClass = AddrMode2AsmOperand;
865 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
868 def PostIdxRegShiftedAsmOperand : AsmOperandClass {
869 let Name = "PostIdxRegShifted";
870 let ParserMethod = "parsePostIdxReg";
872 def am2offset_reg : Operand<i32>,
873 ComplexPattern<i32, 2, "SelectAddrMode2OffsetReg",
874 [], [SDNPWantRoot]> {
875 let EncoderMethod = "getAddrMode2OffsetOpValue";
876 let PrintMethod = "printAddrMode2OffsetOperand";
877 // When using this for assembly, it's always as a post-index offset.
878 let ParserMatchClass = PostIdxRegShiftedAsmOperand;
879 let MIOperandInfo = (ops GPRnopc, i32imm);
882 // FIXME: am2offset_imm should only need the immediate, not the GPR. Having
883 // the GPR is purely vestigal at this point.
884 def AM2OffsetImmAsmOperand : AsmOperandClass { let Name = "AM2OffsetImm"; }
885 def am2offset_imm : Operand<i32>,
886 ComplexPattern<i32, 2, "SelectAddrMode2OffsetImm",
887 [], [SDNPWantRoot]> {
888 let EncoderMethod = "getAddrMode2OffsetOpValue";
889 let PrintMethod = "printAddrMode2OffsetOperand";
890 let ParserMatchClass = AM2OffsetImmAsmOperand;
891 let MIOperandInfo = (ops GPRnopc, i32imm);
895 // addrmode3 := reg +/- reg
896 // addrmode3 := reg +/- imm8
898 // FIXME: split into imm vs. reg versions.
899 def AddrMode3AsmOperand : AsmOperandClass { let Name = "AddrMode3"; }
900 class AddrMode3 : Operand<i32>,
901 ComplexPattern<i32, 3, "SelectAddrMode3", []> {
902 let EncoderMethod = "getAddrMode3OpValue";
903 let ParserMatchClass = AddrMode3AsmOperand;
904 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
907 def addrmode3 : AddrMode3
909 let PrintMethod = "printAddrMode3Operand<false>";
912 def addrmode3_pre : AddrMode3
914 let PrintMethod = "printAddrMode3Operand<true>";
917 // FIXME: split into imm vs. reg versions.
918 // FIXME: parser method to handle +/- register.
919 def AM3OffsetAsmOperand : AsmOperandClass {
920 let Name = "AM3Offset";
921 let ParserMethod = "parseAM3Offset";
923 def am3offset : Operand<i32>,
924 ComplexPattern<i32, 2, "SelectAddrMode3Offset",
925 [], [SDNPWantRoot]> {
926 let EncoderMethod = "getAddrMode3OffsetOpValue";
927 let PrintMethod = "printAddrMode3OffsetOperand";
928 let ParserMatchClass = AM3OffsetAsmOperand;
929 let MIOperandInfo = (ops GPR, i32imm);
932 // ldstm_mode := {ia, ib, da, db}
934 def ldstm_mode : OptionalDefOperand<OtherVT, (ops i32), (ops (i32 1))> {
935 let EncoderMethod = "getLdStmModeOpValue";
936 let PrintMethod = "printLdStmModeOperand";
939 // addrmode5 := reg +/- imm8*4
941 def AddrMode5AsmOperand : AsmOperandClass { let Name = "AddrMode5"; }
942 class AddrMode5 : Operand<i32>,
943 ComplexPattern<i32, 2, "SelectAddrMode5", []> {
944 let EncoderMethod = "getAddrMode5OpValue";
945 let DecoderMethod = "DecodeAddrMode5Operand";
946 let ParserMatchClass = AddrMode5AsmOperand;
947 let MIOperandInfo = (ops GPR:$base, i32imm);
950 def addrmode5 : AddrMode5 {
951 let PrintMethod = "printAddrMode5Operand<false>";
954 def addrmode5_pre : AddrMode5 {
955 let PrintMethod = "printAddrMode5Operand<true>";
958 // addrmode6 := reg with optional alignment
960 def AddrMode6AsmOperand : AsmOperandClass { let Name = "AlignedMemory"; }
961 def addrmode6 : Operand<i32>,
962 ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
963 let PrintMethod = "printAddrMode6Operand";
964 let MIOperandInfo = (ops GPR:$addr, i32imm:$align);
965 let EncoderMethod = "getAddrMode6AddressOpValue";
966 let DecoderMethod = "DecodeAddrMode6Operand";
967 let ParserMatchClass = AddrMode6AsmOperand;
970 def am6offset : Operand<i32>,
971 ComplexPattern<i32, 1, "SelectAddrMode6Offset",
972 [], [SDNPWantRoot]> {
973 let PrintMethod = "printAddrMode6OffsetOperand";
974 let MIOperandInfo = (ops GPR);
975 let EncoderMethod = "getAddrMode6OffsetOpValue";
976 let DecoderMethod = "DecodeGPRRegisterClass";
979 // Special version of addrmode6 to handle alignment encoding for VST1/VLD1
980 // (single element from one lane) for size 32.
981 def addrmode6oneL32 : Operand<i32>,
982 ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
983 let PrintMethod = "printAddrMode6Operand";
984 let MIOperandInfo = (ops GPR:$addr, i32imm);
985 let EncoderMethod = "getAddrMode6OneLane32AddressOpValue";
988 // Special version of addrmode6 to handle alignment encoding for VLD-dup
989 // instructions, specifically VLD4-dup.
990 def addrmode6dup : Operand<i32>,
991 ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
992 let PrintMethod = "printAddrMode6Operand";
993 let MIOperandInfo = (ops GPR:$addr, i32imm);
994 let EncoderMethod = "getAddrMode6DupAddressOpValue";
995 // FIXME: This is close, but not quite right. The alignment specifier is
997 let ParserMatchClass = AddrMode6AsmOperand;
1000 // addrmodepc := pc + reg
1002 def addrmodepc : Operand<i32>,
1003 ComplexPattern<i32, 2, "SelectAddrModePC", []> {
1004 let PrintMethod = "printAddrModePCOperand";
1005 let MIOperandInfo = (ops GPR, i32imm);
1008 // addr_offset_none := reg
1010 def MemNoOffsetAsmOperand : AsmOperandClass { let Name = "MemNoOffset"; }
1011 def addr_offset_none : Operand<i32>,
1012 ComplexPattern<i32, 1, "SelectAddrOffsetNone", []> {
1013 let PrintMethod = "printAddrMode7Operand";
1014 let DecoderMethod = "DecodeAddrMode7Operand";
1015 let ParserMatchClass = MemNoOffsetAsmOperand;
1016 let MIOperandInfo = (ops GPR:$base);
1019 def nohash_imm : Operand<i32> {
1020 let PrintMethod = "printNoHashImmediate";
1023 def CoprocNumAsmOperand : AsmOperandClass {
1024 let Name = "CoprocNum";
1025 let ParserMethod = "parseCoprocNumOperand";
1027 def p_imm : Operand<i32> {
1028 let PrintMethod = "printPImmediate";
1029 let ParserMatchClass = CoprocNumAsmOperand;
1030 let DecoderMethod = "DecodeCoprocessor";
1033 def CoprocRegAsmOperand : AsmOperandClass {
1034 let Name = "CoprocReg";
1035 let ParserMethod = "parseCoprocRegOperand";
1037 def c_imm : Operand<i32> {
1038 let PrintMethod = "printCImmediate";
1039 let ParserMatchClass = CoprocRegAsmOperand;
1041 def CoprocOptionAsmOperand : AsmOperandClass {
1042 let Name = "CoprocOption";
1043 let ParserMethod = "parseCoprocOptionOperand";
1045 def coproc_option_imm : Operand<i32> {
1046 let PrintMethod = "printCoprocOptionImm";
1047 let ParserMatchClass = CoprocOptionAsmOperand;
1050 //===----------------------------------------------------------------------===//
1052 include "ARMInstrFormats.td"
1054 //===----------------------------------------------------------------------===//
1055 // Multiclass helpers...
1058 /// AsI1_bin_irs - Defines a set of (op r, {so_imm|r|so_reg}) patterns for a
1059 /// binop that produces a value.
1060 let TwoOperandAliasConstraint = "$Rn = $Rd" in
1061 multiclass AsI1_bin_irs<bits<4> opcod, string opc,
1062 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
1063 PatFrag opnode, bit Commutable = 0> {
1064 // The register-immediate version is re-materializable. This is useful
1065 // in particular for taking the address of a local.
1066 let isReMaterializable = 1 in {
1067 def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
1068 iii, opc, "\t$Rd, $Rn, $imm",
1069 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]>,
1070 Sched<[WriteALU, ReadALU]> {
1075 let Inst{19-16} = Rn;
1076 let Inst{15-12} = Rd;
1077 let Inst{11-0} = imm;
1080 def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
1081 iir, opc, "\t$Rd, $Rn, $Rm",
1082 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]>,
1083 Sched<[WriteALU, ReadALU, ReadALU]> {
1088 let isCommutable = Commutable;
1089 let Inst{19-16} = Rn;
1090 let Inst{15-12} = Rd;
1091 let Inst{11-4} = 0b00000000;
1095 def rsi : AsI1<opcod, (outs GPR:$Rd),
1096 (ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm,
1097 iis, opc, "\t$Rd, $Rn, $shift",
1098 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_imm:$shift))]>,
1099 Sched<[WriteALUsi, ReadALU]> {
1104 let Inst{19-16} = Rn;
1105 let Inst{15-12} = Rd;
1106 let Inst{11-5} = shift{11-5};
1108 let Inst{3-0} = shift{3-0};
1111 def rsr : AsI1<opcod, (outs GPR:$Rd),
1112 (ins GPR:$Rn, so_reg_reg:$shift), DPSoRegRegFrm,
1113 iis, opc, "\t$Rd, $Rn, $shift",
1114 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg_reg:$shift))]>,
1115 Sched<[WriteALUsr, ReadALUsr]> {
1120 let Inst{19-16} = Rn;
1121 let Inst{15-12} = Rd;
1122 let Inst{11-8} = shift{11-8};
1124 let Inst{6-5} = shift{6-5};
1126 let Inst{3-0} = shift{3-0};
1130 /// AsI1_rbin_irs - Same as AsI1_bin_irs except the order of operands are
1131 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
1132 /// it is equivalent to the AsI1_bin_irs counterpart.
1133 let TwoOperandAliasConstraint = "$Rn = $Rd" in
1134 multiclass AsI1_rbin_irs<bits<4> opcod, string opc,
1135 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
1136 PatFrag opnode, bit Commutable = 0> {
1137 // The register-immediate version is re-materializable. This is useful
1138 // in particular for taking the address of a local.
1139 let isReMaterializable = 1 in {
1140 def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
1141 iii, opc, "\t$Rd, $Rn, $imm",
1142 [(set GPR:$Rd, (opnode so_imm:$imm, GPR:$Rn))]>,
1143 Sched<[WriteALU, ReadALU]> {
1148 let Inst{19-16} = Rn;
1149 let Inst{15-12} = Rd;
1150 let Inst{11-0} = imm;
1153 def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
1154 iir, opc, "\t$Rd, $Rn, $Rm",
1155 [/* pattern left blank */]>,
1156 Sched<[WriteALU, ReadALU, ReadALU]> {
1160 let Inst{11-4} = 0b00000000;
1163 let Inst{15-12} = Rd;
1164 let Inst{19-16} = Rn;
1167 def rsi : AsI1<opcod, (outs GPR:$Rd),
1168 (ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm,
1169 iis, opc, "\t$Rd, $Rn, $shift",
1170 [(set GPR:$Rd, (opnode so_reg_imm:$shift, GPR:$Rn))]>,
1171 Sched<[WriteALUsi, ReadALU]> {
1176 let Inst{19-16} = Rn;
1177 let Inst{15-12} = Rd;
1178 let Inst{11-5} = shift{11-5};
1180 let Inst{3-0} = shift{3-0};
1183 def rsr : AsI1<opcod, (outs GPR:$Rd),
1184 (ins GPR:$Rn, so_reg_reg:$shift), DPSoRegRegFrm,
1185 iis, opc, "\t$Rd, $Rn, $shift",
1186 [(set GPR:$Rd, (opnode so_reg_reg:$shift, GPR:$Rn))]>,
1187 Sched<[WriteALUsr, ReadALUsr]> {
1192 let Inst{19-16} = Rn;
1193 let Inst{15-12} = Rd;
1194 let Inst{11-8} = shift{11-8};
1196 let Inst{6-5} = shift{6-5};
1198 let Inst{3-0} = shift{3-0};
1202 /// AsI1_bin_s_irs - Same as AsI1_bin_irs except it sets the 's' bit by default.
1204 /// These opcodes will be converted to the real non-S opcodes by
1205 /// AdjustInstrPostInstrSelection after giving them an optional CPSR operand.
1206 let hasPostISelHook = 1, Defs = [CPSR] in {
1207 multiclass AsI1_bin_s_irs<InstrItinClass iii, InstrItinClass iir,
1208 InstrItinClass iis, PatFrag opnode,
1209 bit Commutable = 0> {
1210 def ri : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm, pred:$p),
1212 [(set GPR:$Rd, CPSR, (opnode GPR:$Rn, so_imm:$imm))]>,
1213 Sched<[WriteALU, ReadALU]>;
1215 def rr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, pred:$p),
1217 [(set GPR:$Rd, CPSR, (opnode GPR:$Rn, GPR:$Rm))]>,
1218 Sched<[WriteALU, ReadALU, ReadALU]> {
1219 let isCommutable = Commutable;
1221 def rsi : ARMPseudoInst<(outs GPR:$Rd),
1222 (ins GPR:$Rn, so_reg_imm:$shift, pred:$p),
1224 [(set GPR:$Rd, CPSR, (opnode GPR:$Rn,
1225 so_reg_imm:$shift))]>,
1226 Sched<[WriteALUsi, ReadALU]>;
1228 def rsr : ARMPseudoInst<(outs GPR:$Rd),
1229 (ins GPR:$Rn, so_reg_reg:$shift, pred:$p),
1231 [(set GPR:$Rd, CPSR, (opnode GPR:$Rn,
1232 so_reg_reg:$shift))]>,
1233 Sched<[WriteALUSsr, ReadALUsr]>;
1237 /// AsI1_rbin_s_is - Same as AsI1_bin_s_irs, except selection DAG
1238 /// operands are reversed.
1239 let hasPostISelHook = 1, Defs = [CPSR] in {
1240 multiclass AsI1_rbin_s_is<InstrItinClass iii, InstrItinClass iir,
1241 InstrItinClass iis, PatFrag opnode,
1242 bit Commutable = 0> {
1243 def ri : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm, pred:$p),
1245 [(set GPR:$Rd, CPSR, (opnode so_imm:$imm, GPR:$Rn))]>,
1246 Sched<[WriteALU, ReadALU]>;
1248 def rsi : ARMPseudoInst<(outs GPR:$Rd),
1249 (ins GPR:$Rn, so_reg_imm:$shift, pred:$p),
1251 [(set GPR:$Rd, CPSR, (opnode so_reg_imm:$shift,
1253 Sched<[WriteALUsi, ReadALU]>;
1255 def rsr : ARMPseudoInst<(outs GPR:$Rd),
1256 (ins GPR:$Rn, so_reg_reg:$shift, pred:$p),
1258 [(set GPR:$Rd, CPSR, (opnode so_reg_reg:$shift,
1260 Sched<[WriteALUSsr, ReadALUsr]>;
1264 /// AI1_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
1265 /// patterns. Similar to AsI1_bin_irs except the instruction does not produce
1266 /// a explicit result, only implicitly set CPSR.
1267 let isCompare = 1, Defs = [CPSR] in {
1268 multiclass AI1_cmp_irs<bits<4> opcod, string opc,
1269 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
1270 PatFrag opnode, bit Commutable = 0> {
1271 def ri : AI1<opcod, (outs), (ins GPR:$Rn, so_imm:$imm), DPFrm, iii,
1273 [(opnode GPR:$Rn, so_imm:$imm)]>,
1274 Sched<[WriteCMP, ReadALU]> {
1279 let Inst{19-16} = Rn;
1280 let Inst{15-12} = 0b0000;
1281 let Inst{11-0} = imm;
1283 let Unpredictable{15-12} = 0b1111;
1285 def rr : AI1<opcod, (outs), (ins GPR:$Rn, GPR:$Rm), DPFrm, iir,
1287 [(opnode GPR:$Rn, GPR:$Rm)]>,
1288 Sched<[WriteCMP, ReadALU, ReadALU]> {
1291 let isCommutable = Commutable;
1294 let Inst{19-16} = Rn;
1295 let Inst{15-12} = 0b0000;
1296 let Inst{11-4} = 0b00000000;
1299 let Unpredictable{15-12} = 0b1111;
1301 def rsi : AI1<opcod, (outs),
1302 (ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm, iis,
1303 opc, "\t$Rn, $shift",
1304 [(opnode GPR:$Rn, so_reg_imm:$shift)]>,
1305 Sched<[WriteCMPsi, ReadALU]> {
1310 let Inst{19-16} = Rn;
1311 let Inst{15-12} = 0b0000;
1312 let Inst{11-5} = shift{11-5};
1314 let Inst{3-0} = shift{3-0};
1316 let Unpredictable{15-12} = 0b1111;
1318 def rsr : AI1<opcod, (outs),
1319 (ins GPRnopc:$Rn, so_reg_reg:$shift), DPSoRegRegFrm, iis,
1320 opc, "\t$Rn, $shift",
1321 [(opnode GPRnopc:$Rn, so_reg_reg:$shift)]>,
1322 Sched<[WriteCMPsr, ReadALU]> {
1327 let Inst{19-16} = Rn;
1328 let Inst{15-12} = 0b0000;
1329 let Inst{11-8} = shift{11-8};
1331 let Inst{6-5} = shift{6-5};
1333 let Inst{3-0} = shift{3-0};
1335 let Unpredictable{15-12} = 0b1111;
1341 /// AI_ext_rrot - A unary operation with two forms: one whose operand is a
1342 /// register and one whose operand is a register rotated by 8/16/24.
1343 /// FIXME: Remove the 'r' variant. Its rot_imm is zero.
1344 class AI_ext_rrot<bits<8> opcod, string opc, PatFrag opnode>
1345 : AExtI<opcod, (outs GPRnopc:$Rd), (ins GPRnopc:$Rm, rot_imm:$rot),
1346 IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
1347 [(set GPRnopc:$Rd, (opnode (rotr GPRnopc:$Rm, rot_imm:$rot)))]>,
1348 Requires<[IsARM, HasV6]>, Sched<[WriteALUsi]> {
1352 let Inst{19-16} = 0b1111;
1353 let Inst{15-12} = Rd;
1354 let Inst{11-10} = rot;
1358 class AI_ext_rrot_np<bits<8> opcod, string opc>
1359 : AExtI<opcod, (outs GPRnopc:$Rd), (ins GPRnopc:$Rm, rot_imm:$rot),
1360 IIC_iEXTr, opc, "\t$Rd, $Rm$rot", []>,
1361 Requires<[IsARM, HasV6]>, Sched<[WriteALUsi]> {
1363 let Inst{19-16} = 0b1111;
1364 let Inst{11-10} = rot;
1367 /// AI_exta_rrot - A binary operation with two forms: one whose operand is a
1368 /// register and one whose operand is a register rotated by 8/16/24.
1369 class AI_exta_rrot<bits<8> opcod, string opc, PatFrag opnode>
1370 : AExtI<opcod, (outs GPRnopc:$Rd), (ins GPR:$Rn, GPRnopc:$Rm, rot_imm:$rot),
1371 IIC_iEXTAr, opc, "\t$Rd, $Rn, $Rm$rot",
1372 [(set GPRnopc:$Rd, (opnode GPR:$Rn,
1373 (rotr GPRnopc:$Rm, rot_imm:$rot)))]>,
1374 Requires<[IsARM, HasV6]>, Sched<[WriteALUsr]> {
1379 let Inst{19-16} = Rn;
1380 let Inst{15-12} = Rd;
1381 let Inst{11-10} = rot;
1382 let Inst{9-4} = 0b000111;
1386 class AI_exta_rrot_np<bits<8> opcod, string opc>
1387 : AExtI<opcod, (outs GPRnopc:$Rd), (ins GPR:$Rn, GPRnopc:$Rm, rot_imm:$rot),
1388 IIC_iEXTAr, opc, "\t$Rd, $Rn, $Rm$rot", []>,
1389 Requires<[IsARM, HasV6]>, Sched<[WriteALUsr]> {
1392 let Inst{19-16} = Rn;
1393 let Inst{11-10} = rot;
1396 /// AI1_adde_sube_irs - Define instructions and patterns for adde and sube.
1397 let TwoOperandAliasConstraint = "$Rn = $Rd" in
1398 multiclass AI1_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
1399 bit Commutable = 0> {
1400 let hasPostISelHook = 1, Defs = [CPSR], Uses = [CPSR] in {
1401 def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
1402 DPFrm, IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
1403 [(set GPR:$Rd, CPSR, (opnode GPR:$Rn, so_imm:$imm, CPSR))]>,
1405 Sched<[WriteALU, ReadALU]> {
1410 let Inst{15-12} = Rd;
1411 let Inst{19-16} = Rn;
1412 let Inst{11-0} = imm;
1414 def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1415 DPFrm, IIC_iALUr, opc, "\t$Rd, $Rn, $Rm",
1416 [(set GPR:$Rd, CPSR, (opnode GPR:$Rn, GPR:$Rm, CPSR))]>,
1418 Sched<[WriteALU, ReadALU, ReadALU]> {
1422 let Inst{11-4} = 0b00000000;
1424 let isCommutable = Commutable;
1426 let Inst{15-12} = Rd;
1427 let Inst{19-16} = Rn;
1429 def rsi : AsI1<opcod, (outs GPR:$Rd),
1430 (ins GPR:$Rn, so_reg_imm:$shift),
1431 DPSoRegImmFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
1432 [(set GPR:$Rd, CPSR, (opnode GPR:$Rn, so_reg_imm:$shift, CPSR))]>,
1434 Sched<[WriteALUsi, ReadALU]> {
1439 let Inst{19-16} = Rn;
1440 let Inst{15-12} = Rd;
1441 let Inst{11-5} = shift{11-5};
1443 let Inst{3-0} = shift{3-0};
1445 def rsr : AsI1<opcod, (outs GPRnopc:$Rd),
1446 (ins GPRnopc:$Rn, so_reg_reg:$shift),
1447 DPSoRegRegFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
1448 [(set GPRnopc:$Rd, CPSR,
1449 (opnode GPRnopc:$Rn, so_reg_reg:$shift, CPSR))]>,
1451 Sched<[WriteALUsr, ReadALUsr]> {
1456 let Inst{19-16} = Rn;
1457 let Inst{15-12} = Rd;
1458 let Inst{11-8} = shift{11-8};
1460 let Inst{6-5} = shift{6-5};
1462 let Inst{3-0} = shift{3-0};
1467 /// AI1_rsc_irs - Define instructions and patterns for rsc
1468 let TwoOperandAliasConstraint = "$Rn = $Rd" in
1469 multiclass AI1_rsc_irs<bits<4> opcod, string opc, PatFrag opnode> {
1470 let hasPostISelHook = 1, Defs = [CPSR], Uses = [CPSR] in {
1471 def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
1472 DPFrm, IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
1473 [(set GPR:$Rd, CPSR, (opnode so_imm:$imm, GPR:$Rn, CPSR))]>,
1475 Sched<[WriteALU, ReadALU]> {
1480 let Inst{15-12} = Rd;
1481 let Inst{19-16} = Rn;
1482 let Inst{11-0} = imm;
1484 def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1485 DPFrm, IIC_iALUr, opc, "\t$Rd, $Rn, $Rm",
1486 [/* pattern left blank */]>,
1487 Sched<[WriteALU, ReadALU, ReadALU]> {
1491 let Inst{11-4} = 0b00000000;
1494 let Inst{15-12} = Rd;
1495 let Inst{19-16} = Rn;
1497 def rsi : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_reg_imm:$shift),
1498 DPSoRegImmFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
1499 [(set GPR:$Rd, CPSR, (opnode so_reg_imm:$shift, GPR:$Rn, CPSR))]>,
1501 Sched<[WriteALUsi, ReadALU]> {
1506 let Inst{19-16} = Rn;
1507 let Inst{15-12} = Rd;
1508 let Inst{11-5} = shift{11-5};
1510 let Inst{3-0} = shift{3-0};
1512 def rsr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_reg_reg:$shift),
1513 DPSoRegRegFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
1514 [(set GPR:$Rd, CPSR, (opnode so_reg_reg:$shift, GPR:$Rn, CPSR))]>,
1516 Sched<[WriteALUsr, ReadALUsr]> {
1521 let Inst{19-16} = Rn;
1522 let Inst{15-12} = Rd;
1523 let Inst{11-8} = shift{11-8};
1525 let Inst{6-5} = shift{6-5};
1527 let Inst{3-0} = shift{3-0};
1532 let canFoldAsLoad = 1, isReMaterializable = 1 in {
1533 multiclass AI_ldr1<bit isByte, string opc, InstrItinClass iii,
1534 InstrItinClass iir, PatFrag opnode> {
1535 // Note: We use the complex addrmode_imm12 rather than just an input
1536 // GPR and a constrained immediate so that we can use this to match
1537 // frame index references and avoid matching constant pool references.
1538 def i12: AI2ldst<0b010, 1, isByte, (outs GPR:$Rt), (ins addrmode_imm12:$addr),
1539 AddrMode_i12, LdFrm, iii, opc, "\t$Rt, $addr",
1540 [(set GPR:$Rt, (opnode addrmode_imm12:$addr))]> {
1543 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1544 let Inst{19-16} = addr{16-13}; // Rn
1545 let Inst{15-12} = Rt;
1546 let Inst{11-0} = addr{11-0}; // imm12
1548 def rs : AI2ldst<0b011, 1, isByte, (outs GPR:$Rt), (ins ldst_so_reg:$shift),
1549 AddrModeNone, LdFrm, iir, opc, "\t$Rt, $shift",
1550 [(set GPR:$Rt, (opnode ldst_so_reg:$shift))]> {
1553 let shift{4} = 0; // Inst{4} = 0
1554 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1555 let Inst{19-16} = shift{16-13}; // Rn
1556 let Inst{15-12} = Rt;
1557 let Inst{11-0} = shift{11-0};
1562 let canFoldAsLoad = 1, isReMaterializable = 1 in {
1563 multiclass AI_ldr1nopc<bit isByte, string opc, InstrItinClass iii,
1564 InstrItinClass iir, PatFrag opnode> {
1565 // Note: We use the complex addrmode_imm12 rather than just an input
1566 // GPR and a constrained immediate so that we can use this to match
1567 // frame index references and avoid matching constant pool references.
1568 def i12: AI2ldst<0b010, 1, isByte, (outs GPRnopc:$Rt),
1569 (ins addrmode_imm12:$addr),
1570 AddrMode_i12, LdFrm, iii, opc, "\t$Rt, $addr",
1571 [(set GPRnopc:$Rt, (opnode addrmode_imm12:$addr))]> {
1574 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1575 let Inst{19-16} = addr{16-13}; // Rn
1576 let Inst{15-12} = Rt;
1577 let Inst{11-0} = addr{11-0}; // imm12
1579 def rs : AI2ldst<0b011, 1, isByte, (outs GPRnopc:$Rt),
1580 (ins ldst_so_reg:$shift),
1581 AddrModeNone, LdFrm, iir, opc, "\t$Rt, $shift",
1582 [(set GPRnopc:$Rt, (opnode ldst_so_reg:$shift))]> {
1585 let shift{4} = 0; // Inst{4} = 0
1586 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1587 let Inst{19-16} = shift{16-13}; // Rn
1588 let Inst{15-12} = Rt;
1589 let Inst{11-0} = shift{11-0};
1595 multiclass AI_str1<bit isByte, string opc, InstrItinClass iii,
1596 InstrItinClass iir, PatFrag opnode> {
1597 // Note: We use the complex addrmode_imm12 rather than just an input
1598 // GPR and a constrained immediate so that we can use this to match
1599 // frame index references and avoid matching constant pool references.
1600 def i12 : AI2ldst<0b010, 0, isByte, (outs),
1601 (ins GPR:$Rt, addrmode_imm12:$addr),
1602 AddrMode_i12, StFrm, iii, opc, "\t$Rt, $addr",
1603 [(opnode GPR:$Rt, addrmode_imm12:$addr)]> {
1606 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1607 let Inst{19-16} = addr{16-13}; // Rn
1608 let Inst{15-12} = Rt;
1609 let Inst{11-0} = addr{11-0}; // imm12
1611 def rs : AI2ldst<0b011, 0, isByte, (outs), (ins GPR:$Rt, ldst_so_reg:$shift),
1612 AddrModeNone, StFrm, iir, opc, "\t$Rt, $shift",
1613 [(opnode GPR:$Rt, ldst_so_reg:$shift)]> {
1616 let shift{4} = 0; // Inst{4} = 0
1617 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1618 let Inst{19-16} = shift{16-13}; // Rn
1619 let Inst{15-12} = Rt;
1620 let Inst{11-0} = shift{11-0};
1624 multiclass AI_str1nopc<bit isByte, string opc, InstrItinClass iii,
1625 InstrItinClass iir, PatFrag opnode> {
1626 // Note: We use the complex addrmode_imm12 rather than just an input
1627 // GPR and a constrained immediate so that we can use this to match
1628 // frame index references and avoid matching constant pool references.
1629 def i12 : AI2ldst<0b010, 0, isByte, (outs),
1630 (ins GPRnopc:$Rt, addrmode_imm12:$addr),
1631 AddrMode_i12, StFrm, iii, opc, "\t$Rt, $addr",
1632 [(opnode GPRnopc:$Rt, addrmode_imm12:$addr)]> {
1635 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1636 let Inst{19-16} = addr{16-13}; // Rn
1637 let Inst{15-12} = Rt;
1638 let Inst{11-0} = addr{11-0}; // imm12
1640 def rs : AI2ldst<0b011, 0, isByte, (outs),
1641 (ins GPRnopc:$Rt, ldst_so_reg:$shift),
1642 AddrModeNone, StFrm, iir, opc, "\t$Rt, $shift",
1643 [(opnode GPRnopc:$Rt, ldst_so_reg:$shift)]> {
1646 let shift{4} = 0; // Inst{4} = 0
1647 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1648 let Inst{19-16} = shift{16-13}; // Rn
1649 let Inst{15-12} = Rt;
1650 let Inst{11-0} = shift{11-0};
1655 //===----------------------------------------------------------------------===//
1657 //===----------------------------------------------------------------------===//
1659 //===----------------------------------------------------------------------===//
1660 // Miscellaneous Instructions.
1663 /// CONSTPOOL_ENTRY - This instruction represents a floating constant pool in
1664 /// the function. The first operand is the ID# for this instruction, the second
1665 /// is the index into the MachineConstantPool that this is, the third is the
1666 /// size in bytes of this constant pool entry.
1667 let neverHasSideEffects = 1, isNotDuplicable = 1 in
1668 def CONSTPOOL_ENTRY :
1669 PseudoInst<(outs), (ins cpinst_operand:$instid, cpinst_operand:$cpidx,
1670 i32imm:$size), NoItinerary, []>;
1672 // FIXME: Marking these as hasSideEffects is necessary to prevent machine DCE
1673 // from removing one half of the matched pairs. That breaks PEI, which assumes
1674 // these will always be in pairs, and asserts if it finds otherwise. Better way?
1675 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
1676 def ADJCALLSTACKUP :
1677 PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2, pred:$p), NoItinerary,
1678 [(ARMcallseq_end timm:$amt1, timm:$amt2)]>;
1680 def ADJCALLSTACKDOWN :
1681 PseudoInst<(outs), (ins i32imm:$amt, pred:$p), NoItinerary,
1682 [(ARMcallseq_start timm:$amt)]>;
1685 def HINT : AI<(outs), (ins imm0_239:$imm), MiscFrm, NoItinerary,
1686 "hint", "\t$imm", []>, Requires<[IsARM, HasV6]> {
1688 let Inst{27-8} = 0b00110010000011110000;
1689 let Inst{7-0} = imm;
1692 def : InstAlias<"nop$p", (HINT 0, pred:$p)>, Requires<[IsARM, HasV6T2]>;
1693 def : InstAlias<"yield$p", (HINT 1, pred:$p)>, Requires<[IsARM, HasV6T2]>;
1694 def : InstAlias<"wfe$p", (HINT 2, pred:$p)>, Requires<[IsARM, HasV6T2]>;
1695 def : InstAlias<"wfi$p", (HINT 3, pred:$p)>, Requires<[IsARM, HasV6T2]>;
1696 def : InstAlias<"sev$p", (HINT 4, pred:$p)>, Requires<[IsARM, HasV6T2]>;
1697 def : InstAlias<"sevl$p", (HINT 5, pred:$p)>, Requires<[IsARM, HasV8]>;
1699 def : Pat<(int_arm_sevl), (HINT 5)>;
1701 def SEL : AI<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm, NoItinerary, "sel",
1702 "\t$Rd, $Rn, $Rm", []>, Requires<[IsARM, HasV6]> {
1707 let Inst{15-12} = Rd;
1708 let Inst{19-16} = Rn;
1709 let Inst{27-20} = 0b01101000;
1710 let Inst{7-4} = 0b1011;
1711 let Inst{11-8} = 0b1111;
1712 let Unpredictable{11-8} = 0b1111;
1715 // The 16-bit operand $val can be used by a debugger to store more information
1716 // about the breakpoint.
1717 def BKPT : AInoP<(outs), (ins imm0_65535:$val), MiscFrm, NoItinerary,
1718 "bkpt", "\t$val", []>, Requires<[IsARM]> {
1720 let Inst{3-0} = val{3-0};
1721 let Inst{19-8} = val{15-4};
1722 let Inst{27-20} = 0b00010010;
1723 let Inst{31-28} = 0xe; // AL
1724 let Inst{7-4} = 0b0111;
1727 def HLT : AInoP<(outs), (ins imm0_65535:$val), MiscFrm, NoItinerary,
1728 "hlt", "\t$val", []>, Requires<[IsARM, HasV8]> {
1730 let Inst{3-0} = val{3-0};
1731 let Inst{19-8} = val{15-4};
1732 let Inst{27-20} = 0b00010000;
1733 let Inst{31-28} = 0xe; // AL
1734 let Inst{7-4} = 0b0111;
1737 // Change Processor State
1738 // FIXME: We should use InstAlias to handle the optional operands.
1739 class CPS<dag iops, string asm_ops>
1740 : AXI<(outs), iops, MiscFrm, NoItinerary, !strconcat("cps", asm_ops),
1741 []>, Requires<[IsARM]> {
1747 let Inst{31-28} = 0b1111;
1748 let Inst{27-20} = 0b00010000;
1749 let Inst{19-18} = imod;
1750 let Inst{17} = M; // Enabled if mode is set;
1751 let Inst{16-9} = 0b00000000;
1752 let Inst{8-6} = iflags;
1754 let Inst{4-0} = mode;
1757 let DecoderMethod = "DecodeCPSInstruction" in {
1759 def CPS3p : CPS<(ins imod_op:$imod, iflags_op:$iflags, imm0_31:$mode),
1760 "$imod\t$iflags, $mode">;
1761 let mode = 0, M = 0 in
1762 def CPS2p : CPS<(ins imod_op:$imod, iflags_op:$iflags), "$imod\t$iflags">;
1764 let imod = 0, iflags = 0, M = 1 in
1765 def CPS1p : CPS<(ins imm0_31:$mode), "\t$mode">;
1768 // Preload signals the memory system of possible future data/instruction access.
1769 multiclass APreLoad<bits<1> read, bits<1> data, string opc> {
1771 def i12 : AXI<(outs), (ins addrmode_imm12:$addr), MiscFrm, IIC_Preload,
1772 !strconcat(opc, "\t$addr"),
1773 [(ARMPreload addrmode_imm12:$addr, (i32 read), (i32 data))]>,
1774 Sched<[WritePreLd]> {
1777 let Inst{31-26} = 0b111101;
1778 let Inst{25} = 0; // 0 for immediate form
1779 let Inst{24} = data;
1780 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1781 let Inst{22} = read;
1782 let Inst{21-20} = 0b01;
1783 let Inst{19-16} = addr{16-13}; // Rn
1784 let Inst{15-12} = 0b1111;
1785 let Inst{11-0} = addr{11-0}; // imm12
1788 def rs : AXI<(outs), (ins ldst_so_reg:$shift), MiscFrm, IIC_Preload,
1789 !strconcat(opc, "\t$shift"),
1790 [(ARMPreload ldst_so_reg:$shift, (i32 read), (i32 data))]>,
1791 Sched<[WritePreLd]> {
1793 let Inst{31-26} = 0b111101;
1794 let Inst{25} = 1; // 1 for register form
1795 let Inst{24} = data;
1796 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1797 let Inst{22} = read;
1798 let Inst{21-20} = 0b01;
1799 let Inst{19-16} = shift{16-13}; // Rn
1800 let Inst{15-12} = 0b1111;
1801 let Inst{11-0} = shift{11-0};
1806 defm PLD : APreLoad<1, 1, "pld">, Requires<[IsARM]>;
1807 defm PLDW : APreLoad<0, 1, "pldw">, Requires<[IsARM,HasV7,HasMP]>;
1808 defm PLI : APreLoad<1, 0, "pli">, Requires<[IsARM,HasV7]>;
1810 def SETEND : AXI<(outs), (ins setend_op:$end), MiscFrm, NoItinerary,
1811 "setend\t$end", []>, Requires<[IsARM]>, Deprecated<HasV8Ops> {
1813 let Inst{31-10} = 0b1111000100000001000000;
1818 def DBG : AI<(outs), (ins imm0_15:$opt), MiscFrm, NoItinerary, "dbg", "\t$opt",
1819 []>, Requires<[IsARM, HasV7]> {
1821 let Inst{27-4} = 0b001100100000111100001111;
1822 let Inst{3-0} = opt;
1826 * A5.4 Permanently UNDEFINED instructions.
1828 * For most targets use UDF #65006, for which the OS will generate SIGTRAP.
1829 * Other UDF encodings generate SIGILL.
1831 * NaCl's OS instead chooses an ARM UDF encoding that's also a UDF in Thumb.
1833 * 1110 0111 1111 iiii iiii iiii 1111 iiii
1835 * 1101 1110 iiii iiii
1836 * It uses the following encoding:
1837 * 1110 0111 1111 1110 1101 1110 1111 0000
1838 * - In ARM: UDF #60896;
1839 * - In Thumb: UDF #254 followed by a branch-to-self.
1841 let isBarrier = 1, isTerminator = 1 in
1842 def TRAPNaCl : AXI<(outs), (ins), MiscFrm, NoItinerary,
1844 Requires<[IsARM,UseNaClTrap]> {
1845 let Inst = 0xe7fedef0;
1847 let isBarrier = 1, isTerminator = 1 in
1848 def TRAP : AXI<(outs), (ins), MiscFrm, NoItinerary,
1850 Requires<[IsARM,DontUseNaClTrap]> {
1851 let Inst = 0xe7ffdefe;
1854 // Address computation and loads and stores in PIC mode.
1855 let isNotDuplicable = 1 in {
1856 def PICADD : ARMPseudoInst<(outs GPR:$dst), (ins GPR:$a, pclabel:$cp, pred:$p),
1858 [(set GPR:$dst, (ARMpic_add GPR:$a, imm:$cp))]>,
1859 Sched<[WriteALU, ReadALU]>;
1861 let AddedComplexity = 10 in {
1862 def PICLDR : ARMPseudoInst<(outs GPR:$dst), (ins addrmodepc:$addr, pred:$p),
1864 [(set GPR:$dst, (load addrmodepc:$addr))]>;
1866 def PICLDRH : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1868 [(set GPR:$Rt, (zextloadi16 addrmodepc:$addr))]>;
1870 def PICLDRB : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1872 [(set GPR:$Rt, (zextloadi8 addrmodepc:$addr))]>;
1874 def PICLDRSH : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1876 [(set GPR:$Rt, (sextloadi16 addrmodepc:$addr))]>;
1878 def PICLDRSB : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1880 [(set GPR:$Rt, (sextloadi8 addrmodepc:$addr))]>;
1882 let AddedComplexity = 10 in {
1883 def PICSTR : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
1884 4, IIC_iStore_r, [(store GPR:$src, addrmodepc:$addr)]>;
1886 def PICSTRH : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
1887 4, IIC_iStore_bh_r, [(truncstorei16 GPR:$src,
1888 addrmodepc:$addr)]>;
1890 def PICSTRB : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
1891 4, IIC_iStore_bh_r, [(truncstorei8 GPR:$src, addrmodepc:$addr)]>;
1893 } // isNotDuplicable = 1
1896 // LEApcrel - Load a pc-relative address into a register without offending the
1898 let neverHasSideEffects = 1, isReMaterializable = 1 in
1899 // The 'adr' mnemonic encodes differently if the label is before or after
1900 // the instruction. The {24-21} opcode bits are set by the fixup, as we don't
1901 // know until then which form of the instruction will be used.
1902 def ADR : AI1<{0,?,?,0}, (outs GPR:$Rd), (ins adrlabel:$label),
1903 MiscFrm, IIC_iALUi, "adr", "\t$Rd, $label", []>,
1904 Sched<[WriteALU, ReadALU]> {
1907 let Inst{27-25} = 0b001;
1909 let Inst{23-22} = label{13-12};
1912 let Inst{19-16} = 0b1111;
1913 let Inst{15-12} = Rd;
1914 let Inst{11-0} = label{11-0};
1917 let hasSideEffects = 1 in {
1918 def LEApcrel : ARMPseudoInst<(outs GPR:$Rd), (ins i32imm:$label, pred:$p),
1919 4, IIC_iALUi, []>, Sched<[WriteALU, ReadALU]>;
1921 def LEApcrelJT : ARMPseudoInst<(outs GPR:$Rd),
1922 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1923 4, IIC_iALUi, []>, Sched<[WriteALU, ReadALU]>;
1926 //===----------------------------------------------------------------------===//
1927 // Control Flow Instructions.
1930 let isReturn = 1, isTerminator = 1, isBarrier = 1 in {
1932 def BX_RET : AI<(outs), (ins), BrMiscFrm, IIC_Br,
1933 "bx", "\tlr", [(ARMretflag)]>,
1934 Requires<[IsARM, HasV4T]>, Sched<[WriteBr]> {
1935 let Inst{27-0} = 0b0001001011111111111100011110;
1939 def MOVPCLR : AI<(outs), (ins), BrMiscFrm, IIC_Br,
1940 "mov", "\tpc, lr", [(ARMretflag)]>,
1941 Requires<[IsARM, NoV4T]>, Sched<[WriteBr]> {
1942 let Inst{27-0} = 0b0001101000001111000000001110;
1945 // Exception return: N.b. doesn't set CPSR as far as we're concerned (it sets
1946 // the user-space one).
1947 def SUBS_PC_LR : ARMPseudoInst<(outs), (ins i32imm:$offset, pred:$p),
1949 [(ARMintretflag imm:$offset)]>;
1952 // Indirect branches
1953 let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
1955 def BX : AXI<(outs), (ins GPR:$dst), BrMiscFrm, IIC_Br, "bx\t$dst",
1956 [(brind GPR:$dst)]>,
1957 Requires<[IsARM, HasV4T]>, Sched<[WriteBr]> {
1959 let Inst{31-4} = 0b1110000100101111111111110001;
1960 let Inst{3-0} = dst;
1963 def BX_pred : AI<(outs), (ins GPR:$dst), BrMiscFrm, IIC_Br,
1964 "bx", "\t$dst", [/* pattern left blank */]>,
1965 Requires<[IsARM, HasV4T]>, Sched<[WriteBr]> {
1967 let Inst{27-4} = 0b000100101111111111110001;
1968 let Inst{3-0} = dst;
1972 // SP is marked as a use to prevent stack-pointer assignments that appear
1973 // immediately before calls from potentially appearing dead.
1975 // FIXME: Do we really need a non-predicated version? If so, it should
1976 // at least be a pseudo instruction expanding to the predicated version
1977 // at MC lowering time.
1978 Defs = [LR], Uses = [SP] in {
1979 def BL : ABXI<0b1011, (outs), (ins bl_target:$func),
1980 IIC_Br, "bl\t$func",
1981 [(ARMcall tglobaladdr:$func)]>,
1982 Requires<[IsARM]>, Sched<[WriteBrL]> {
1983 let Inst{31-28} = 0b1110;
1985 let Inst{23-0} = func;
1986 let DecoderMethod = "DecodeBranchImmInstruction";
1989 def BL_pred : ABI<0b1011, (outs), (ins bl_target:$func),
1990 IIC_Br, "bl", "\t$func",
1991 [(ARMcall_pred tglobaladdr:$func)]>,
1992 Requires<[IsARM]>, Sched<[WriteBrL]> {
1994 let Inst{23-0} = func;
1995 let DecoderMethod = "DecodeBranchImmInstruction";
1999 def BLX : AXI<(outs), (ins GPR:$func), BrMiscFrm,
2000 IIC_Br, "blx\t$func",
2001 [(ARMcall GPR:$func)]>,
2002 Requires<[IsARM, HasV5T]>, Sched<[WriteBrL]> {
2004 let Inst{31-4} = 0b1110000100101111111111110011;
2005 let Inst{3-0} = func;
2008 def BLX_pred : AI<(outs), (ins GPR:$func), BrMiscFrm,
2009 IIC_Br, "blx", "\t$func",
2010 [(ARMcall_pred GPR:$func)]>,
2011 Requires<[IsARM, HasV5T]>, Sched<[WriteBrL]> {
2013 let Inst{27-4} = 0b000100101111111111110011;
2014 let Inst{3-0} = func;
2018 // Note: Restrict $func to the tGPR regclass to prevent it being in LR.
2019 def BX_CALL : ARMPseudoInst<(outs), (ins tGPR:$func),
2020 8, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
2021 Requires<[IsARM, HasV4T]>, Sched<[WriteBr]>;
2024 def BMOVPCRX_CALL : ARMPseudoInst<(outs), (ins tGPR:$func),
2025 8, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
2026 Requires<[IsARM, NoV4T]>, Sched<[WriteBr]>;
2028 // mov lr, pc; b if callee is marked noreturn to avoid confusing the
2029 // return stack predictor.
2030 def BMOVPCB_CALL : ARMPseudoInst<(outs), (ins bl_target:$func),
2031 8, IIC_Br, [(ARMcall_nolink tglobaladdr:$func)]>,
2032 Requires<[IsARM]>, Sched<[WriteBr]>;
2035 let isBranch = 1, isTerminator = 1 in {
2036 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
2037 // a two-value operand where a dag node expects two operands. :(
2038 def Bcc : ABI<0b1010, (outs), (ins br_target:$target),
2039 IIC_Br, "b", "\t$target",
2040 [/*(ARMbrcond bb:$target, imm:$cc, CCR:$ccr)*/]>,
2043 let Inst{23-0} = target;
2044 let DecoderMethod = "DecodeBranchImmInstruction";
2047 let isBarrier = 1 in {
2048 // B is "predicable" since it's just a Bcc with an 'always' condition.
2049 let isPredicable = 1 in
2050 // FIXME: We shouldn't need this pseudo at all. Just using Bcc directly
2051 // should be sufficient.
2052 // FIXME: Is B really a Barrier? That doesn't seem right.
2053 def B : ARMPseudoExpand<(outs), (ins br_target:$target), 4, IIC_Br,
2054 [(br bb:$target)], (Bcc br_target:$target, (ops 14, zero_reg))>,
2057 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2058 def BR_JTr : ARMPseudoInst<(outs),
2059 (ins GPR:$target, i32imm:$jt, i32imm:$id),
2061 [(ARMbrjt GPR:$target, tjumptable:$jt, imm:$id)]>,
2063 // FIXME: This shouldn't use the generic "addrmode2," but rather be split
2064 // into i12 and rs suffixed versions.
2065 def BR_JTm : ARMPseudoInst<(outs),
2066 (ins addrmode2:$target, i32imm:$jt, i32imm:$id),
2068 [(ARMbrjt (i32 (load addrmode2:$target)), tjumptable:$jt,
2069 imm:$id)]>, Sched<[WriteBrTbl]>;
2070 def BR_JTadd : ARMPseudoInst<(outs),
2071 (ins GPR:$target, GPR:$idx, i32imm:$jt, i32imm:$id),
2073 [(ARMbrjt (add GPR:$target, GPR:$idx), tjumptable:$jt,
2074 imm:$id)]>, Sched<[WriteBrTbl]>;
2075 } // isNotDuplicable = 1, isIndirectBranch = 1
2081 def BLXi : AXI<(outs), (ins blx_target:$target), BrMiscFrm, NoItinerary,
2082 "blx\t$target", []>,
2083 Requires<[IsARM, HasV5T]>, Sched<[WriteBrL]> {
2084 let Inst{31-25} = 0b1111101;
2086 let Inst{23-0} = target{24-1};
2087 let Inst{24} = target{0};
2090 // Branch and Exchange Jazelle
2091 def BXJ : ABI<0b0001, (outs), (ins GPR:$func), NoItinerary, "bxj", "\t$func",
2092 [/* pattern left blank */]>, Sched<[WriteBr]> {
2094 let Inst{23-20} = 0b0010;
2095 let Inst{19-8} = 0xfff;
2096 let Inst{7-4} = 0b0010;
2097 let Inst{3-0} = func;
2102 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1, Uses = [SP] in {
2103 def TCRETURNdi : PseudoInst<(outs), (ins i32imm:$dst), IIC_Br, []>,
2106 def TCRETURNri : PseudoInst<(outs), (ins tcGPR:$dst), IIC_Br, []>,
2109 def TAILJMPd : ARMPseudoExpand<(outs), (ins br_target:$dst),
2111 (Bcc br_target:$dst, (ops 14, zero_reg))>,
2112 Requires<[IsARM]>, Sched<[WriteBr]>;
2114 def TAILJMPr : ARMPseudoExpand<(outs), (ins tcGPR:$dst),
2116 (BX GPR:$dst)>, Sched<[WriteBr]>,
2120 // Secure Monitor Call is a system instruction.
2121 def SMC : ABI<0b0001, (outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
2122 []>, Requires<[IsARM, HasTrustZone]> {
2124 let Inst{23-4} = 0b01100000000000000111;
2125 let Inst{3-0} = opt;
2128 // Supervisor Call (Software Interrupt)
2129 let isCall = 1, Uses = [SP] in {
2130 def SVC : ABI<0b1111, (outs), (ins imm24b:$svc), IIC_Br, "svc", "\t$svc", []>,
2133 let Inst{23-0} = svc;
2137 // Store Return State
2138 class SRSI<bit wb, string asm>
2139 : XI<(outs), (ins imm0_31:$mode), AddrModeNone, 4, IndexModeNone, BrFrm,
2140 NoItinerary, asm, "", []> {
2142 let Inst{31-28} = 0b1111;
2143 let Inst{27-25} = 0b100;
2147 let Inst{19-16} = 0b1101; // SP
2148 let Inst{15-5} = 0b00000101000;
2149 let Inst{4-0} = mode;
2152 def SRSDA : SRSI<0, "srsda\tsp, $mode"> {
2153 let Inst{24-23} = 0;
2155 def SRSDA_UPD : SRSI<1, "srsda\tsp!, $mode"> {
2156 let Inst{24-23} = 0;
2158 def SRSDB : SRSI<0, "srsdb\tsp, $mode"> {
2159 let Inst{24-23} = 0b10;
2161 def SRSDB_UPD : SRSI<1, "srsdb\tsp!, $mode"> {
2162 let Inst{24-23} = 0b10;
2164 def SRSIA : SRSI<0, "srsia\tsp, $mode"> {
2165 let Inst{24-23} = 0b01;
2167 def SRSIA_UPD : SRSI<1, "srsia\tsp!, $mode"> {
2168 let Inst{24-23} = 0b01;
2170 def SRSIB : SRSI<0, "srsib\tsp, $mode"> {
2171 let Inst{24-23} = 0b11;
2173 def SRSIB_UPD : SRSI<1, "srsib\tsp!, $mode"> {
2174 let Inst{24-23} = 0b11;
2177 def : ARMInstAlias<"srsda $mode", (SRSDA imm0_31:$mode)>;
2178 def : ARMInstAlias<"srsda $mode!", (SRSDA_UPD imm0_31:$mode)>;
2180 def : ARMInstAlias<"srsdb $mode", (SRSDB imm0_31:$mode)>;
2181 def : ARMInstAlias<"srsdb $mode!", (SRSDB_UPD imm0_31:$mode)>;
2183 def : ARMInstAlias<"srsia $mode", (SRSIA imm0_31:$mode)>;
2184 def : ARMInstAlias<"srsia $mode!", (SRSIA_UPD imm0_31:$mode)>;
2186 def : ARMInstAlias<"srsib $mode", (SRSIB imm0_31:$mode)>;
2187 def : ARMInstAlias<"srsib $mode!", (SRSIB_UPD imm0_31:$mode)>;
2189 // Return From Exception
2190 class RFEI<bit wb, string asm>
2191 : XI<(outs), (ins GPR:$Rn), AddrModeNone, 4, IndexModeNone, BrFrm,
2192 NoItinerary, asm, "", []> {
2194 let Inst{31-28} = 0b1111;
2195 let Inst{27-25} = 0b100;
2199 let Inst{19-16} = Rn;
2200 let Inst{15-0} = 0xa00;
2203 def RFEDA : RFEI<0, "rfeda\t$Rn"> {
2204 let Inst{24-23} = 0;
2206 def RFEDA_UPD : RFEI<1, "rfeda\t$Rn!"> {
2207 let Inst{24-23} = 0;
2209 def RFEDB : RFEI<0, "rfedb\t$Rn"> {
2210 let Inst{24-23} = 0b10;
2212 def RFEDB_UPD : RFEI<1, "rfedb\t$Rn!"> {
2213 let Inst{24-23} = 0b10;
2215 def RFEIA : RFEI<0, "rfeia\t$Rn"> {
2216 let Inst{24-23} = 0b01;
2218 def RFEIA_UPD : RFEI<1, "rfeia\t$Rn!"> {
2219 let Inst{24-23} = 0b01;
2221 def RFEIB : RFEI<0, "rfeib\t$Rn"> {
2222 let Inst{24-23} = 0b11;
2224 def RFEIB_UPD : RFEI<1, "rfeib\t$Rn!"> {
2225 let Inst{24-23} = 0b11;
2228 //===----------------------------------------------------------------------===//
2229 // Load / Store Instructions.
2235 defm LDR : AI_ldr1<0, "ldr", IIC_iLoad_r, IIC_iLoad_si,
2236 UnOpFrag<(load node:$Src)>>;
2237 defm LDRB : AI_ldr1nopc<1, "ldrb", IIC_iLoad_bh_r, IIC_iLoad_bh_si,
2238 UnOpFrag<(zextloadi8 node:$Src)>>;
2239 defm STR : AI_str1<0, "str", IIC_iStore_r, IIC_iStore_si,
2240 BinOpFrag<(store node:$LHS, node:$RHS)>>;
2241 defm STRB : AI_str1nopc<1, "strb", IIC_iStore_bh_r, IIC_iStore_bh_si,
2242 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
2244 // Special LDR for loads from non-pc-relative constpools.
2245 let canFoldAsLoad = 1, mayLoad = 1, neverHasSideEffects = 1,
2246 isReMaterializable = 1, isCodeGenOnly = 1 in
2247 def LDRcp : AI2ldst<0b010, 1, 0, (outs GPR:$Rt), (ins addrmode_imm12:$addr),
2248 AddrMode_i12, LdFrm, IIC_iLoad_r, "ldr", "\t$Rt, $addr",
2252 let Inst{23} = addr{12}; // U (add = ('U' == 1))
2253 let Inst{19-16} = 0b1111;
2254 let Inst{15-12} = Rt;
2255 let Inst{11-0} = addr{11-0}; // imm12
2258 // Loads with zero extension
2259 def LDRH : AI3ld<0b1011, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
2260 IIC_iLoad_bh_r, "ldrh", "\t$Rt, $addr",
2261 [(set GPR:$Rt, (zextloadi16 addrmode3:$addr))]>;
2263 // Loads with sign extension
2264 def LDRSH : AI3ld<0b1111, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
2265 IIC_iLoad_bh_r, "ldrsh", "\t$Rt, $addr",
2266 [(set GPR:$Rt, (sextloadi16 addrmode3:$addr))]>;
2268 def LDRSB : AI3ld<0b1101, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
2269 IIC_iLoad_bh_r, "ldrsb", "\t$Rt, $addr",
2270 [(set GPR:$Rt, (sextloadi8 addrmode3:$addr))]>;
2272 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
2274 def LDRD : AI3ld<0b1101, 0, (outs GPR:$Rd, GPR:$dst2),
2275 (ins addrmode3:$addr), LdMiscFrm,
2276 IIC_iLoad_d_r, "ldrd", "\t$Rd, $dst2, $addr",
2277 []>, Requires<[IsARM, HasV5TE]>;
2280 def LDA : AIldracq<0b00, (outs GPR:$Rt), (ins addr_offset_none:$addr),
2281 NoItinerary, "lda", "\t$Rt, $addr", []>;
2282 def LDAB : AIldracq<0b10, (outs GPR:$Rt), (ins addr_offset_none:$addr),
2283 NoItinerary, "ldab", "\t$Rt, $addr", []>;
2284 def LDAH : AIldracq<0b11, (outs GPR:$Rt), (ins addr_offset_none:$addr),
2285 NoItinerary, "ldah", "\t$Rt, $addr", []>;
2288 multiclass AI2_ldridx<bit isByte, string opc,
2289 InstrItinClass iii, InstrItinClass iir> {
2290 def _PRE_IMM : AI2ldstidx<1, isByte, 1, (outs GPR:$Rt, GPR:$Rn_wb),
2291 (ins addrmode_imm12_pre:$addr), IndexModePre, LdFrm, iii,
2292 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
2295 let Inst{23} = addr{12};
2296 let Inst{19-16} = addr{16-13};
2297 let Inst{11-0} = addr{11-0};
2298 let DecoderMethod = "DecodeLDRPreImm";
2301 def _PRE_REG : AI2ldstidx<1, isByte, 1, (outs GPR:$Rt, GPR:$Rn_wb),
2302 (ins ldst_so_reg:$addr), IndexModePre, LdFrm, iir,
2303 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
2306 let Inst{23} = addr{12};
2307 let Inst{19-16} = addr{16-13};
2308 let Inst{11-0} = addr{11-0};
2310 let DecoderMethod = "DecodeLDRPreReg";
2313 def _POST_REG : AI2ldstidx<1, isByte, 0, (outs GPR:$Rt, GPR:$Rn_wb),
2314 (ins addr_offset_none:$addr, am2offset_reg:$offset),
2315 IndexModePost, LdFrm, iir,
2316 opc, "\t$Rt, $addr, $offset",
2317 "$addr.base = $Rn_wb", []> {
2323 let Inst{23} = offset{12};
2324 let Inst{19-16} = addr;
2325 let Inst{11-0} = offset{11-0};
2328 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
2331 def _POST_IMM : AI2ldstidx<1, isByte, 0, (outs GPR:$Rt, GPR:$Rn_wb),
2332 (ins addr_offset_none:$addr, am2offset_imm:$offset),
2333 IndexModePost, LdFrm, iii,
2334 opc, "\t$Rt, $addr, $offset",
2335 "$addr.base = $Rn_wb", []> {
2341 let Inst{23} = offset{12};
2342 let Inst{19-16} = addr;
2343 let Inst{11-0} = offset{11-0};
2345 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
2350 let mayLoad = 1, neverHasSideEffects = 1 in {
2351 // FIXME: for LDR_PRE_REG etc. the itineray should be either IIC_iLoad_ru or
2352 // IIC_iLoad_siu depending on whether it the offset register is shifted.
2353 defm LDR : AI2_ldridx<0, "ldr", IIC_iLoad_iu, IIC_iLoad_ru>;
2354 defm LDRB : AI2_ldridx<1, "ldrb", IIC_iLoad_bh_iu, IIC_iLoad_bh_ru>;
2357 multiclass AI3_ldridx<bits<4> op, string opc, InstrItinClass itin> {
2358 def _PRE : AI3ldstidx<op, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
2359 (ins addrmode3_pre:$addr), IndexModePre,
2361 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
2363 let Inst{23} = addr{8}; // U bit
2364 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
2365 let Inst{19-16} = addr{12-9}; // Rn
2366 let Inst{11-8} = addr{7-4}; // imm7_4/zero
2367 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
2368 let DecoderMethod = "DecodeAddrMode3Instruction";
2370 def _POST : AI3ldstidx<op, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
2371 (ins addr_offset_none:$addr, am3offset:$offset),
2372 IndexModePost, LdMiscFrm, itin,
2373 opc, "\t$Rt, $addr, $offset", "$addr.base = $Rn_wb",
2377 let Inst{23} = offset{8}; // U bit
2378 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
2379 let Inst{19-16} = addr;
2380 let Inst{11-8} = offset{7-4}; // imm7_4/zero
2381 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
2382 let DecoderMethod = "DecodeAddrMode3Instruction";
2386 let mayLoad = 1, neverHasSideEffects = 1 in {
2387 defm LDRH : AI3_ldridx<0b1011, "ldrh", IIC_iLoad_bh_ru>;
2388 defm LDRSH : AI3_ldridx<0b1111, "ldrsh", IIC_iLoad_bh_ru>;
2389 defm LDRSB : AI3_ldridx<0b1101, "ldrsb", IIC_iLoad_bh_ru>;
2390 let hasExtraDefRegAllocReq = 1 in {
2391 def LDRD_PRE : AI3ldstidx<0b1101, 0, 1, (outs GPR:$Rt, GPR:$Rt2, GPR:$Rn_wb),
2392 (ins addrmode3_pre:$addr), IndexModePre,
2393 LdMiscFrm, IIC_iLoad_d_ru,
2394 "ldrd", "\t$Rt, $Rt2, $addr!",
2395 "$addr.base = $Rn_wb", []> {
2397 let Inst{23} = addr{8}; // U bit
2398 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
2399 let Inst{19-16} = addr{12-9}; // Rn
2400 let Inst{11-8} = addr{7-4}; // imm7_4/zero
2401 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
2402 let DecoderMethod = "DecodeAddrMode3Instruction";
2404 def LDRD_POST: AI3ldstidx<0b1101, 0, 0, (outs GPR:$Rt, GPR:$Rt2, GPR:$Rn_wb),
2405 (ins addr_offset_none:$addr, am3offset:$offset),
2406 IndexModePost, LdMiscFrm, IIC_iLoad_d_ru,
2407 "ldrd", "\t$Rt, $Rt2, $addr, $offset",
2408 "$addr.base = $Rn_wb", []> {
2411 let Inst{23} = offset{8}; // U bit
2412 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
2413 let Inst{19-16} = addr;
2414 let Inst{11-8} = offset{7-4}; // imm7_4/zero
2415 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
2416 let DecoderMethod = "DecodeAddrMode3Instruction";
2418 } // hasExtraDefRegAllocReq = 1
2419 } // mayLoad = 1, neverHasSideEffects = 1
2421 // LDRT, LDRBT, LDRSBT, LDRHT, LDRSHT.
2422 let mayLoad = 1, neverHasSideEffects = 1 in {
2423 def LDRT_POST_REG : AI2ldstidx<1, 0, 0, (outs GPR:$Rt, GPR:$Rn_wb),
2424 (ins addr_offset_none:$addr, am2offset_reg:$offset),
2425 IndexModePost, LdFrm, IIC_iLoad_ru,
2426 "ldrt", "\t$Rt, $addr, $offset",
2427 "$addr.base = $Rn_wb", []> {
2433 let Inst{23} = offset{12};
2434 let Inst{21} = 1; // overwrite
2435 let Inst{19-16} = addr;
2436 let Inst{11-5} = offset{11-5};
2438 let Inst{3-0} = offset{3-0};
2439 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
2442 def LDRT_POST_IMM : AI2ldstidx<1, 0, 0, (outs GPR:$Rt, GPR:$Rn_wb),
2443 (ins addr_offset_none:$addr, am2offset_imm:$offset),
2444 IndexModePost, LdFrm, IIC_iLoad_ru,
2445 "ldrt", "\t$Rt, $addr, $offset",
2446 "$addr.base = $Rn_wb", []> {
2452 let Inst{23} = offset{12};
2453 let Inst{21} = 1; // overwrite
2454 let Inst{19-16} = addr;
2455 let Inst{11-0} = offset{11-0};
2456 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
2459 def LDRBT_POST_REG : AI2ldstidx<1, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
2460 (ins addr_offset_none:$addr, am2offset_reg:$offset),
2461 IndexModePost, LdFrm, IIC_iLoad_bh_ru,
2462 "ldrbt", "\t$Rt, $addr, $offset",
2463 "$addr.base = $Rn_wb", []> {
2469 let Inst{23} = offset{12};
2470 let Inst{21} = 1; // overwrite
2471 let Inst{19-16} = addr;
2472 let Inst{11-5} = offset{11-5};
2474 let Inst{3-0} = offset{3-0};
2475 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
2478 def LDRBT_POST_IMM : AI2ldstidx<1, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
2479 (ins addr_offset_none:$addr, am2offset_imm:$offset),
2480 IndexModePost, LdFrm, IIC_iLoad_bh_ru,
2481 "ldrbt", "\t$Rt, $addr, $offset",
2482 "$addr.base = $Rn_wb", []> {
2488 let Inst{23} = offset{12};
2489 let Inst{21} = 1; // overwrite
2490 let Inst{19-16} = addr;
2491 let Inst{11-0} = offset{11-0};
2492 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
2495 multiclass AI3ldrT<bits<4> op, string opc> {
2496 def i : AI3ldstidxT<op, 1, (outs GPR:$Rt, GPR:$base_wb),
2497 (ins addr_offset_none:$addr, postidx_imm8:$offset),
2498 IndexModePost, LdMiscFrm, IIC_iLoad_bh_ru, opc,
2499 "\t$Rt, $addr, $offset", "$addr.base = $base_wb", []> {
2501 let Inst{23} = offset{8};
2503 let Inst{11-8} = offset{7-4};
2504 let Inst{3-0} = offset{3-0};
2506 def r : AI3ldstidxT<op, 1, (outs GPRnopc:$Rt, GPRnopc:$base_wb),
2507 (ins addr_offset_none:$addr, postidx_reg:$Rm),
2508 IndexModePost, LdMiscFrm, IIC_iLoad_bh_ru, opc,
2509 "\t$Rt, $addr, $Rm", "$addr.base = $base_wb", []> {
2511 let Inst{23} = Rm{4};
2514 let Unpredictable{11-8} = 0b1111;
2515 let Inst{3-0} = Rm{3-0};
2516 let DecoderMethod = "DecodeLDR";
2520 defm LDRSBT : AI3ldrT<0b1101, "ldrsbt">;
2521 defm LDRHT : AI3ldrT<0b1011, "ldrht">;
2522 defm LDRSHT : AI3ldrT<0b1111, "ldrsht">;
2527 // Stores with truncate
2528 def STRH : AI3str<0b1011, (outs), (ins GPR:$Rt, addrmode3:$addr), StMiscFrm,
2529 IIC_iStore_bh_r, "strh", "\t$Rt, $addr",
2530 [(truncstorei16 GPR:$Rt, addrmode3:$addr)]>;
2533 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
2534 def STRD : AI3str<0b1111, (outs), (ins GPR:$Rt, GPR:$src2, addrmode3:$addr),
2535 StMiscFrm, IIC_iStore_d_r,
2536 "strd", "\t$Rt, $src2, $addr", []>,
2537 Requires<[IsARM, HasV5TE]> {
2542 multiclass AI2_stridx<bit isByte, string opc,
2543 InstrItinClass iii, InstrItinClass iir> {
2544 def _PRE_IMM : AI2ldstidx<0, isByte, 1, (outs GPR:$Rn_wb),
2545 (ins GPR:$Rt, addrmode_imm12_pre:$addr), IndexModePre,
2547 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
2550 let Inst{23} = addr{12}; // U (add = ('U' == 1))
2551 let Inst{19-16} = addr{16-13}; // Rn
2552 let Inst{11-0} = addr{11-0}; // imm12
2553 let DecoderMethod = "DecodeSTRPreImm";
2556 def _PRE_REG : AI2ldstidx<0, isByte, 1, (outs GPR:$Rn_wb),
2557 (ins GPR:$Rt, ldst_so_reg:$addr),
2558 IndexModePre, StFrm, iir,
2559 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
2562 let Inst{23} = addr{12}; // U (add = ('U' == 1))
2563 let Inst{19-16} = addr{16-13}; // Rn
2564 let Inst{11-0} = addr{11-0};
2565 let Inst{4} = 0; // Inst{4} = 0
2566 let DecoderMethod = "DecodeSTRPreReg";
2568 def _POST_REG : AI2ldstidx<0, isByte, 0, (outs GPR:$Rn_wb),
2569 (ins GPR:$Rt, addr_offset_none:$addr, am2offset_reg:$offset),
2570 IndexModePost, StFrm, iir,
2571 opc, "\t$Rt, $addr, $offset",
2572 "$addr.base = $Rn_wb", []> {
2578 let Inst{23} = offset{12};
2579 let Inst{19-16} = addr;
2580 let Inst{11-0} = offset{11-0};
2583 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
2586 def _POST_IMM : AI2ldstidx<0, isByte, 0, (outs GPR:$Rn_wb),
2587 (ins GPR:$Rt, addr_offset_none:$addr, am2offset_imm:$offset),
2588 IndexModePost, StFrm, iii,
2589 opc, "\t$Rt, $addr, $offset",
2590 "$addr.base = $Rn_wb", []> {
2596 let Inst{23} = offset{12};
2597 let Inst{19-16} = addr;
2598 let Inst{11-0} = offset{11-0};
2600 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
2604 let mayStore = 1, neverHasSideEffects = 1 in {
2605 // FIXME: for STR_PRE_REG etc. the itineray should be either IIC_iStore_ru or
2606 // IIC_iStore_siu depending on whether it the offset register is shifted.
2607 defm STR : AI2_stridx<0, "str", IIC_iStore_iu, IIC_iStore_ru>;
2608 defm STRB : AI2_stridx<1, "strb", IIC_iStore_bh_iu, IIC_iStore_bh_ru>;
2611 def : ARMPat<(post_store GPR:$Rt, addr_offset_none:$addr,
2612 am2offset_reg:$offset),
2613 (STR_POST_REG GPR:$Rt, addr_offset_none:$addr,
2614 am2offset_reg:$offset)>;
2615 def : ARMPat<(post_store GPR:$Rt, addr_offset_none:$addr,
2616 am2offset_imm:$offset),
2617 (STR_POST_IMM GPR:$Rt, addr_offset_none:$addr,
2618 am2offset_imm:$offset)>;
2619 def : ARMPat<(post_truncsti8 GPR:$Rt, addr_offset_none:$addr,
2620 am2offset_reg:$offset),
2621 (STRB_POST_REG GPR:$Rt, addr_offset_none:$addr,
2622 am2offset_reg:$offset)>;
2623 def : ARMPat<(post_truncsti8 GPR:$Rt, addr_offset_none:$addr,
2624 am2offset_imm:$offset),
2625 (STRB_POST_IMM GPR:$Rt, addr_offset_none:$addr,
2626 am2offset_imm:$offset)>;
2628 // Pseudo-instructions for pattern matching the pre-indexed stores. We can't
2629 // put the patterns on the instruction definitions directly as ISel wants
2630 // the address base and offset to be separate operands, not a single
2631 // complex operand like we represent the instructions themselves. The
2632 // pseudos map between the two.
2633 let usesCustomInserter = 1,
2634 Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in {
2635 def STRi_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
2636 (ins GPR:$Rt, GPR:$Rn, am2offset_imm:$offset, pred:$p),
2639 (pre_store GPR:$Rt, GPR:$Rn, am2offset_imm:$offset))]>;
2640 def STRr_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
2641 (ins GPR:$Rt, GPR:$Rn, am2offset_reg:$offset, pred:$p),
2644 (pre_store GPR:$Rt, GPR:$Rn, am2offset_reg:$offset))]>;
2645 def STRBi_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
2646 (ins GPR:$Rt, GPR:$Rn, am2offset_imm:$offset, pred:$p),
2649 (pre_truncsti8 GPR:$Rt, GPR:$Rn, am2offset_imm:$offset))]>;
2650 def STRBr_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
2651 (ins GPR:$Rt, GPR:$Rn, am2offset_reg:$offset, pred:$p),
2654 (pre_truncsti8 GPR:$Rt, GPR:$Rn, am2offset_reg:$offset))]>;
2655 def STRH_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
2656 (ins GPR:$Rt, GPR:$Rn, am3offset:$offset, pred:$p),
2659 (pre_truncsti16 GPR:$Rt, GPR:$Rn, am3offset:$offset))]>;
2664 def STRH_PRE : AI3ldstidx<0b1011, 0, 1, (outs GPR:$Rn_wb),
2665 (ins GPR:$Rt, addrmode3_pre:$addr), IndexModePre,
2666 StMiscFrm, IIC_iStore_bh_ru,
2667 "strh", "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
2669 let Inst{23} = addr{8}; // U bit
2670 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
2671 let Inst{19-16} = addr{12-9}; // Rn
2672 let Inst{11-8} = addr{7-4}; // imm7_4/zero
2673 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
2674 let DecoderMethod = "DecodeAddrMode3Instruction";
2677 def STRH_POST : AI3ldstidx<0b1011, 0, 0, (outs GPR:$Rn_wb),
2678 (ins GPR:$Rt, addr_offset_none:$addr, am3offset:$offset),
2679 IndexModePost, StMiscFrm, IIC_iStore_bh_ru,
2680 "strh", "\t$Rt, $addr, $offset", "$addr.base = $Rn_wb",
2681 [(set GPR:$Rn_wb, (post_truncsti16 GPR:$Rt,
2682 addr_offset_none:$addr,
2683 am3offset:$offset))]> {
2686 let Inst{23} = offset{8}; // U bit
2687 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
2688 let Inst{19-16} = addr;
2689 let Inst{11-8} = offset{7-4}; // imm7_4/zero
2690 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
2691 let DecoderMethod = "DecodeAddrMode3Instruction";
2694 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in {
2695 def STRD_PRE : AI3ldstidx<0b1111, 0, 1, (outs GPR:$Rn_wb),
2696 (ins GPR:$Rt, GPR:$Rt2, addrmode3_pre:$addr),
2697 IndexModePre, StMiscFrm, IIC_iStore_d_ru,
2698 "strd", "\t$Rt, $Rt2, $addr!",
2699 "$addr.base = $Rn_wb", []> {
2701 let Inst{23} = addr{8}; // U bit
2702 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
2703 let Inst{19-16} = addr{12-9}; // Rn
2704 let Inst{11-8} = addr{7-4}; // imm7_4/zero
2705 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
2706 let DecoderMethod = "DecodeAddrMode3Instruction";
2709 def STRD_POST: AI3ldstidx<0b1111, 0, 0, (outs GPR:$Rn_wb),
2710 (ins GPR:$Rt, GPR:$Rt2, addr_offset_none:$addr,
2712 IndexModePost, StMiscFrm, IIC_iStore_d_ru,
2713 "strd", "\t$Rt, $Rt2, $addr, $offset",
2714 "$addr.base = $Rn_wb", []> {
2717 let Inst{23} = offset{8}; // U bit
2718 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
2719 let Inst{19-16} = addr;
2720 let Inst{11-8} = offset{7-4}; // imm7_4/zero
2721 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
2722 let DecoderMethod = "DecodeAddrMode3Instruction";
2724 } // mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1
2726 // STRT, STRBT, and STRHT
2728 def STRBT_POST_REG : AI2ldstidx<0, 1, 0, (outs GPR:$Rn_wb),
2729 (ins GPR:$Rt, addr_offset_none:$addr, am2offset_reg:$offset),
2730 IndexModePost, StFrm, IIC_iStore_bh_ru,
2731 "strbt", "\t$Rt, $addr, $offset",
2732 "$addr.base = $Rn_wb", []> {
2738 let Inst{23} = offset{12};
2739 let Inst{21} = 1; // overwrite
2740 let Inst{19-16} = addr;
2741 let Inst{11-5} = offset{11-5};
2743 let Inst{3-0} = offset{3-0};
2744 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
2747 def STRBT_POST_IMM : AI2ldstidx<0, 1, 0, (outs GPR:$Rn_wb),
2748 (ins GPR:$Rt, addr_offset_none:$addr, am2offset_imm:$offset),
2749 IndexModePost, StFrm, IIC_iStore_bh_ru,
2750 "strbt", "\t$Rt, $addr, $offset",
2751 "$addr.base = $Rn_wb", []> {
2757 let Inst{23} = offset{12};
2758 let Inst{21} = 1; // overwrite
2759 let Inst{19-16} = addr;
2760 let Inst{11-0} = offset{11-0};
2761 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
2764 let mayStore = 1, neverHasSideEffects = 1 in {
2765 def STRT_POST_REG : AI2ldstidx<0, 0, 0, (outs GPR:$Rn_wb),
2766 (ins GPR:$Rt, addr_offset_none:$addr, am2offset_reg:$offset),
2767 IndexModePost, StFrm, IIC_iStore_ru,
2768 "strt", "\t$Rt, $addr, $offset",
2769 "$addr.base = $Rn_wb", []> {
2775 let Inst{23} = offset{12};
2776 let Inst{21} = 1; // overwrite
2777 let Inst{19-16} = addr;
2778 let Inst{11-5} = offset{11-5};
2780 let Inst{3-0} = offset{3-0};
2781 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
2784 def STRT_POST_IMM : AI2ldstidx<0, 0, 0, (outs GPR:$Rn_wb),
2785 (ins GPR:$Rt, addr_offset_none:$addr, am2offset_imm:$offset),
2786 IndexModePost, StFrm, IIC_iStore_ru,
2787 "strt", "\t$Rt, $addr, $offset",
2788 "$addr.base = $Rn_wb", []> {
2794 let Inst{23} = offset{12};
2795 let Inst{21} = 1; // overwrite
2796 let Inst{19-16} = addr;
2797 let Inst{11-0} = offset{11-0};
2798 let DecoderMethod = "DecodeAddrMode2IdxInstruction";
2803 multiclass AI3strT<bits<4> op, string opc> {
2804 def i : AI3ldstidxT<op, 0, (outs GPR:$base_wb),
2805 (ins GPR:$Rt, addr_offset_none:$addr, postidx_imm8:$offset),
2806 IndexModePost, StMiscFrm, IIC_iStore_bh_ru, opc,
2807 "\t$Rt, $addr, $offset", "$addr.base = $base_wb", []> {
2809 let Inst{23} = offset{8};
2811 let Inst{11-8} = offset{7-4};
2812 let Inst{3-0} = offset{3-0};
2814 def r : AI3ldstidxT<op, 0, (outs GPR:$base_wb),
2815 (ins GPR:$Rt, addr_offset_none:$addr, postidx_reg:$Rm),
2816 IndexModePost, StMiscFrm, IIC_iStore_bh_ru, opc,
2817 "\t$Rt, $addr, $Rm", "$addr.base = $base_wb", []> {
2819 let Inst{23} = Rm{4};
2822 let Inst{3-0} = Rm{3-0};
2827 defm STRHT : AI3strT<0b1011, "strht">;
2829 def STL : AIstrrel<0b00, (outs), (ins GPR:$Rt, addr_offset_none:$addr),
2830 NoItinerary, "stl", "\t$Rt, $addr", []>;
2831 def STLB : AIstrrel<0b10, (outs), (ins GPR:$Rt, addr_offset_none:$addr),
2832 NoItinerary, "stlb", "\t$Rt, $addr", []>;
2833 def STLH : AIstrrel<0b11, (outs), (ins GPR:$Rt, addr_offset_none:$addr),
2834 NoItinerary, "stlh", "\t$Rt, $addr", []>;
2836 //===----------------------------------------------------------------------===//
2837 // Load / store multiple Instructions.
2840 multiclass arm_ldst_mult<string asm, string sfx, bit L_bit, bit P_bit, Format f,
2841 InstrItinClass itin, InstrItinClass itin_upd> {
2842 // IA is the default, so no need for an explicit suffix on the
2843 // mnemonic here. Without it is the canonical spelling.
2845 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2846 IndexModeNone, f, itin,
2847 !strconcat(asm, "${p}\t$Rn, $regs", sfx), "", []> {
2848 let Inst{24-23} = 0b01; // Increment After
2849 let Inst{22} = P_bit;
2850 let Inst{21} = 0; // No writeback
2851 let Inst{20} = L_bit;
2854 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2855 IndexModeUpd, f, itin_upd,
2856 !strconcat(asm, "${p}\t$Rn!, $regs", sfx), "$Rn = $wb", []> {
2857 let Inst{24-23} = 0b01; // Increment After
2858 let Inst{22} = P_bit;
2859 let Inst{21} = 1; // Writeback
2860 let Inst{20} = L_bit;
2862 let DecoderMethod = "DecodeMemMultipleWritebackInstruction";
2865 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2866 IndexModeNone, f, itin,
2867 !strconcat(asm, "da${p}\t$Rn, $regs", sfx), "", []> {
2868 let Inst{24-23} = 0b00; // Decrement After
2869 let Inst{22} = P_bit;
2870 let Inst{21} = 0; // No writeback
2871 let Inst{20} = L_bit;
2874 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2875 IndexModeUpd, f, itin_upd,
2876 !strconcat(asm, "da${p}\t$Rn!, $regs", sfx), "$Rn = $wb", []> {
2877 let Inst{24-23} = 0b00; // Decrement After
2878 let Inst{22} = P_bit;
2879 let Inst{21} = 1; // Writeback
2880 let Inst{20} = L_bit;
2882 let DecoderMethod = "DecodeMemMultipleWritebackInstruction";
2885 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2886 IndexModeNone, f, itin,
2887 !strconcat(asm, "db${p}\t$Rn, $regs", sfx), "", []> {
2888 let Inst{24-23} = 0b10; // Decrement Before
2889 let Inst{22} = P_bit;
2890 let Inst{21} = 0; // No writeback
2891 let Inst{20} = L_bit;
2894 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2895 IndexModeUpd, f, itin_upd,
2896 !strconcat(asm, "db${p}\t$Rn!, $regs", sfx), "$Rn = $wb", []> {
2897 let Inst{24-23} = 0b10; // Decrement Before
2898 let Inst{22} = P_bit;
2899 let Inst{21} = 1; // Writeback
2900 let Inst{20} = L_bit;
2902 let DecoderMethod = "DecodeMemMultipleWritebackInstruction";
2905 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2906 IndexModeNone, f, itin,
2907 !strconcat(asm, "ib${p}\t$Rn, $regs", sfx), "", []> {
2908 let Inst{24-23} = 0b11; // Increment Before
2909 let Inst{22} = P_bit;
2910 let Inst{21} = 0; // No writeback
2911 let Inst{20} = L_bit;
2914 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
2915 IndexModeUpd, f, itin_upd,
2916 !strconcat(asm, "ib${p}\t$Rn!, $regs", sfx), "$Rn = $wb", []> {
2917 let Inst{24-23} = 0b11; // Increment Before
2918 let Inst{22} = P_bit;
2919 let Inst{21} = 1; // Writeback
2920 let Inst{20} = L_bit;
2922 let DecoderMethod = "DecodeMemMultipleWritebackInstruction";
2926 let neverHasSideEffects = 1 in {
2928 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
2929 defm LDM : arm_ldst_mult<"ldm", "", 1, 0, LdStMulFrm, IIC_iLoad_m,
2932 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
2933 defm STM : arm_ldst_mult<"stm", "", 0, 0, LdStMulFrm, IIC_iStore_m,
2936 } // neverHasSideEffects
2938 // FIXME: remove when we have a way to marking a MI with these properties.
2939 // FIXME: Should pc be an implicit operand like PICADD, etc?
2940 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2941 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2942 def LDMIA_RET : ARMPseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2943 reglist:$regs, variable_ops),
2944 4, IIC_iLoad_mBr, [],
2945 (LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
2946 RegConstraint<"$Rn = $wb">;
2948 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
2949 defm sysLDM : arm_ldst_mult<"ldm", " ^", 1, 1, LdStMulFrm, IIC_iLoad_m,
2952 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
2953 defm sysSTM : arm_ldst_mult<"stm", " ^", 0, 1, LdStMulFrm, IIC_iStore_m,
2958 //===----------------------------------------------------------------------===//
2959 // Move Instructions.
2962 let neverHasSideEffects = 1 in
2963 def MOVr : AsI1<0b1101, (outs GPR:$Rd), (ins GPR:$Rm), DPFrm, IIC_iMOVr,
2964 "mov", "\t$Rd, $Rm", []>, UnaryDP, Sched<[WriteALU]> {
2968 let Inst{19-16} = 0b0000;
2969 let Inst{11-4} = 0b00000000;
2972 let Inst{15-12} = Rd;
2975 // A version for the smaller set of tail call registers.
2976 let neverHasSideEffects = 1 in
2977 def MOVr_TC : AsI1<0b1101, (outs tcGPR:$Rd), (ins tcGPR:$Rm), DPFrm,
2978 IIC_iMOVr, "mov", "\t$Rd, $Rm", []>, UnaryDP, Sched<[WriteALU]> {
2982 let Inst{11-4} = 0b00000000;
2985 let Inst{15-12} = Rd;
2988 def MOVsr : AsI1<0b1101, (outs GPRnopc:$Rd), (ins shift_so_reg_reg:$src),
2989 DPSoRegRegFrm, IIC_iMOVsr,
2990 "mov", "\t$Rd, $src",
2991 [(set GPRnopc:$Rd, shift_so_reg_reg:$src)]>, UnaryDP,
2995 let Inst{15-12} = Rd;
2996 let Inst{19-16} = 0b0000;
2997 let Inst{11-8} = src{11-8};
2999 let Inst{6-5} = src{6-5};
3001 let Inst{3-0} = src{3-0};
3005 def MOVsi : AsI1<0b1101, (outs GPR:$Rd), (ins shift_so_reg_imm:$src),
3006 DPSoRegImmFrm, IIC_iMOVsr,
3007 "mov", "\t$Rd, $src", [(set GPR:$Rd, shift_so_reg_imm:$src)]>,
3008 UnaryDP, Sched<[WriteALU]> {
3011 let Inst{15-12} = Rd;
3012 let Inst{19-16} = 0b0000;
3013 let Inst{11-5} = src{11-5};
3015 let Inst{3-0} = src{3-0};
3019 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
3020 def MOVi : AsI1<0b1101, (outs GPR:$Rd), (ins so_imm:$imm), DPFrm, IIC_iMOVi,
3021 "mov", "\t$Rd, $imm", [(set GPR:$Rd, so_imm:$imm)]>, UnaryDP,
3026 let Inst{15-12} = Rd;
3027 let Inst{19-16} = 0b0000;
3028 let Inst{11-0} = imm;
3031 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
3032 def MOVi16 : AI1<0b1000, (outs GPR:$Rd), (ins imm0_65535_expr:$imm),
3034 "movw", "\t$Rd, $imm",
3035 [(set GPR:$Rd, imm0_65535:$imm)]>,
3036 Requires<[IsARM, HasV6T2]>, UnaryDP, Sched<[WriteALU]> {
3039 let Inst{15-12} = Rd;
3040 let Inst{11-0} = imm{11-0};
3041 let Inst{19-16} = imm{15-12};
3044 let DecoderMethod = "DecodeArmMOVTWInstruction";
3047 def : InstAlias<"mov${p} $Rd, $imm",
3048 (MOVi16 GPR:$Rd, imm0_65535_expr:$imm, pred:$p)>,
3051 def MOVi16_ga_pcrel : PseudoInst<(outs GPR:$Rd),
3052 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>,
3055 let Constraints = "$src = $Rd" in {
3056 def MOVTi16 : AI1<0b1010, (outs GPRnopc:$Rd),
3057 (ins GPR:$src, imm0_65535_expr:$imm),
3059 "movt", "\t$Rd, $imm",
3061 (or (and GPR:$src, 0xffff),
3062 lo16AllZero:$imm))]>, UnaryDP,
3063 Requires<[IsARM, HasV6T2]>, Sched<[WriteALU]> {
3066 let Inst{15-12} = Rd;
3067 let Inst{11-0} = imm{11-0};
3068 let Inst{19-16} = imm{15-12};
3071 let DecoderMethod = "DecodeArmMOVTWInstruction";
3074 def MOVTi16_ga_pcrel : PseudoInst<(outs GPR:$Rd),
3075 (ins GPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>,
3080 def : ARMPat<(or GPR:$src, 0xffff0000), (MOVTi16 GPR:$src, 0xffff)>,
3081 Requires<[IsARM, HasV6T2]>;
3083 let Uses = [CPSR] in
3084 def RRX: PseudoInst<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVsi,
3085 [(set GPR:$Rd, (ARMrrx GPR:$Rm))]>, UnaryDP,
3086 Requires<[IsARM]>, Sched<[WriteALU]>;
3088 // These aren't really mov instructions, but we have to define them this way
3089 // due to flag operands.
3091 let Defs = [CPSR] in {
3092 def MOVsrl_flag : PseudoInst<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
3093 [(set GPR:$dst, (ARMsrl_flag GPR:$src))]>, UnaryDP,
3094 Sched<[WriteALU]>, Requires<[IsARM]>;
3095 def MOVsra_flag : PseudoInst<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
3096 [(set GPR:$dst, (ARMsra_flag GPR:$src))]>, UnaryDP,
3097 Sched<[WriteALU]>, Requires<[IsARM]>;
3100 //===----------------------------------------------------------------------===//
3101 // Extend Instructions.
3106 def SXTB : AI_ext_rrot<0b01101010,
3107 "sxtb", UnOpFrag<(sext_inreg node:$Src, i8)>>;
3108 def SXTH : AI_ext_rrot<0b01101011,
3109 "sxth", UnOpFrag<(sext_inreg node:$Src, i16)>>;
3111 def SXTAB : AI_exta_rrot<0b01101010,
3112 "sxtab", BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
3113 def SXTAH : AI_exta_rrot<0b01101011,
3114 "sxtah", BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
3116 def SXTB16 : AI_ext_rrot_np<0b01101000, "sxtb16">;
3118 def SXTAB16 : AI_exta_rrot_np<0b01101000, "sxtab16">;
3122 let AddedComplexity = 16 in {
3123 def UXTB : AI_ext_rrot<0b01101110,
3124 "uxtb" , UnOpFrag<(and node:$Src, 0x000000FF)>>;
3125 def UXTH : AI_ext_rrot<0b01101111,
3126 "uxth" , UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
3127 def UXTB16 : AI_ext_rrot<0b01101100,
3128 "uxtb16", UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
3130 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
3131 // The transformation should probably be done as a combiner action
3132 // instead so we can include a check for masking back in the upper
3133 // eight bits of the source into the lower eight bits of the result.
3134 //def : ARMV6Pat<(and (shl GPR:$Src, (i32 8)), 0xFF00FF),
3135 // (UXTB16r_rot GPR:$Src, 3)>;
3136 def : ARMV6Pat<(and (srl GPR:$Src, (i32 8)), 0xFF00FF),
3137 (UXTB16 GPR:$Src, 1)>;
3139 def UXTAB : AI_exta_rrot<0b01101110, "uxtab",
3140 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
3141 def UXTAH : AI_exta_rrot<0b01101111, "uxtah",
3142 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
3145 // This isn't safe in general, the add is two 16-bit units, not a 32-bit add.
3146 def UXTAB16 : AI_exta_rrot_np<0b01101100, "uxtab16">;
3149 def SBFX : I<(outs GPRnopc:$Rd),
3150 (ins GPRnopc:$Rn, imm0_31:$lsb, imm1_32:$width),
3151 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
3152 "sbfx", "\t$Rd, $Rn, $lsb, $width", "", []>,
3153 Requires<[IsARM, HasV6T2]> {
3158 let Inst{27-21} = 0b0111101;
3159 let Inst{6-4} = 0b101;
3160 let Inst{20-16} = width;
3161 let Inst{15-12} = Rd;
3162 let Inst{11-7} = lsb;
3166 def UBFX : I<(outs GPR:$Rd),
3167 (ins GPR:$Rn, imm0_31:$lsb, imm1_32:$width),
3168 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
3169 "ubfx", "\t$Rd, $Rn, $lsb, $width", "", []>,
3170 Requires<[IsARM, HasV6T2]> {
3175 let Inst{27-21} = 0b0111111;
3176 let Inst{6-4} = 0b101;
3177 let Inst{20-16} = width;
3178 let Inst{15-12} = Rd;
3179 let Inst{11-7} = lsb;
3183 //===----------------------------------------------------------------------===//
3184 // Arithmetic Instructions.
3187 defm ADD : AsI1_bin_irs<0b0100, "add",
3188 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
3189 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
3190 defm SUB : AsI1_bin_irs<0b0010, "sub",
3191 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
3192 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
3194 // ADD and SUB with 's' bit set.
3196 // Currently, ADDS/SUBS are pseudo opcodes that exist only in the
3197 // selection DAG. They are "lowered" to real ADD/SUB opcodes by
3198 // AdjustInstrPostInstrSelection where we determine whether or not to
3199 // set the "s" bit based on CPSR liveness.
3201 // FIXME: Eliminate ADDS/SUBS pseudo opcodes after adding tablegen
3202 // support for an optional CPSR definition that corresponds to the DAG
3203 // node's second value. We can then eliminate the implicit def of CPSR.
3204 defm ADDS : AsI1_bin_s_irs<IIC_iALUi, IIC_iALUr, IIC_iALUsr,
3205 BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>;
3206 defm SUBS : AsI1_bin_s_irs<IIC_iALUi, IIC_iALUr, IIC_iALUsr,
3207 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
3209 defm ADC : AI1_adde_sube_irs<0b0101, "adc",
3210 BinOpWithFlagFrag<(ARMadde node:$LHS, node:$RHS, node:$FLAG)>, 1>;
3211 defm SBC : AI1_adde_sube_irs<0b0110, "sbc",
3212 BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>>;
3214 defm RSB : AsI1_rbin_irs<0b0011, "rsb",
3215 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
3216 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
3218 // FIXME: Eliminate them if we can write def : Pat patterns which defines
3219 // CPSR and the implicit def of CPSR is not needed.
3220 defm RSBS : AsI1_rbin_s_is<IIC_iALUi, IIC_iALUr, IIC_iALUsr,
3221 BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
3223 defm RSC : AI1_rsc_irs<0b0111, "rsc",
3224 BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>>;
3226 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
3227 // The assume-no-carry-in form uses the negation of the input since add/sub
3228 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
3229 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
3231 def : ARMPat<(add GPR:$src, so_imm_neg:$imm),
3232 (SUBri GPR:$src, so_imm_neg:$imm)>;
3233 def : ARMPat<(ARMaddc GPR:$src, so_imm_neg:$imm),
3234 (SUBSri GPR:$src, so_imm_neg:$imm)>;
3236 def : ARMPat<(add GPR:$src, imm0_65535_neg:$imm),
3237 (SUBrr GPR:$src, (MOVi16 (imm_neg_XFORM imm:$imm)))>,
3238 Requires<[IsARM, HasV6T2]>;
3239 def : ARMPat<(ARMaddc GPR:$src, imm0_65535_neg:$imm),
3240 (SUBSrr GPR:$src, (MOVi16 (imm_neg_XFORM imm:$imm)))>,
3241 Requires<[IsARM, HasV6T2]>;
3243 // The with-carry-in form matches bitwise not instead of the negation.
3244 // Effectively, the inverse interpretation of the carry flag already accounts
3245 // for part of the negation.
3246 def : ARMPat<(ARMadde GPR:$src, so_imm_not:$imm, CPSR),
3247 (SBCri GPR:$src, so_imm_not:$imm)>;
3248 def : ARMPat<(ARMadde GPR:$src, imm0_65535_neg:$imm, CPSR),
3249 (SBCrr GPR:$src, (MOVi16 (imm_not_XFORM imm:$imm)))>;
3251 // Note: These are implemented in C++ code, because they have to generate
3252 // ADD/SUBrs instructions, which use a complex pattern that a xform function
3254 // (mul X, 2^n+1) -> (add (X << n), X)
3255 // (mul X, 2^n-1) -> (rsb X, (X << n))
3257 // ARM Arithmetic Instruction
3258 // GPR:$dst = GPR:$a op GPR:$b
3259 class AAI<bits<8> op27_20, bits<8> op11_4, string opc,
3260 list<dag> pattern = [],
3261 dag iops = (ins GPRnopc:$Rn, GPRnopc:$Rm),
3262 string asm = "\t$Rd, $Rn, $Rm">
3263 : AI<(outs GPRnopc:$Rd), iops, DPFrm, IIC_iALUr, opc, asm, pattern>,
3264 Sched<[WriteALU, ReadALU, ReadALU]> {
3268 let Inst{27-20} = op27_20;
3269 let Inst{11-4} = op11_4;
3270 let Inst{19-16} = Rn;
3271 let Inst{15-12} = Rd;
3274 let Unpredictable{11-8} = 0b1111;
3277 // Saturating add/subtract
3279 let DecoderMethod = "DecodeQADDInstruction" in
3280 def QADD : AAI<0b00010000, 0b00000101, "qadd",
3281 [(set GPRnopc:$Rd, (int_arm_qadd GPRnopc:$Rm, GPRnopc:$Rn))],
3282 (ins GPRnopc:$Rm, GPRnopc:$Rn), "\t$Rd, $Rm, $Rn">;
3284 def QSUB : AAI<0b00010010, 0b00000101, "qsub",
3285 [(set GPRnopc:$Rd, (int_arm_qsub GPRnopc:$Rm, GPRnopc:$Rn))],
3286 (ins GPRnopc:$Rm, GPRnopc:$Rn), "\t$Rd, $Rm, $Rn">;
3287 def QDADD : AAI<0b00010100, 0b00000101, "qdadd", [],
3288 (ins GPRnopc:$Rm, GPRnopc:$Rn),
3290 def QDSUB : AAI<0b00010110, 0b00000101, "qdsub", [],
3291 (ins GPRnopc:$Rm, GPRnopc:$Rn),
3294 def QADD16 : AAI<0b01100010, 0b11110001, "qadd16">;
3295 def QADD8 : AAI<0b01100010, 0b11111001, "qadd8">;
3296 def QASX : AAI<0b01100010, 0b11110011, "qasx">;
3297 def QSAX : AAI<0b01100010, 0b11110101, "qsax">;
3298 def QSUB16 : AAI<0b01100010, 0b11110111, "qsub16">;
3299 def QSUB8 : AAI<0b01100010, 0b11111111, "qsub8">;
3300 def UQADD16 : AAI<0b01100110, 0b11110001, "uqadd16">;
3301 def UQADD8 : AAI<0b01100110, 0b11111001, "uqadd8">;
3302 def UQASX : AAI<0b01100110, 0b11110011, "uqasx">;
3303 def UQSAX : AAI<0b01100110, 0b11110101, "uqsax">;
3304 def UQSUB16 : AAI<0b01100110, 0b11110111, "uqsub16">;
3305 def UQSUB8 : AAI<0b01100110, 0b11111111, "uqsub8">;
3307 // Signed/Unsigned add/subtract
3309 def SASX : AAI<0b01100001, 0b11110011, "sasx">;
3310 def SADD16 : AAI<0b01100001, 0b11110001, "sadd16">;
3311 def SADD8 : AAI<0b01100001, 0b11111001, "sadd8">;
3312 def SSAX : AAI<0b01100001, 0b11110101, "ssax">;
3313 def SSUB16 : AAI<0b01100001, 0b11110111, "ssub16">;
3314 def SSUB8 : AAI<0b01100001, 0b11111111, "ssub8">;
3315 def UASX : AAI<0b01100101, 0b11110011, "uasx">;
3316 def UADD16 : AAI<0b01100101, 0b11110001, "uadd16">;
3317 def UADD8 : AAI<0b01100101, 0b11111001, "uadd8">;
3318 def USAX : AAI<0b01100101, 0b11110101, "usax">;
3319 def USUB16 : AAI<0b01100101, 0b11110111, "usub16">;
3320 def USUB8 : AAI<0b01100101, 0b11111111, "usub8">;
3322 // Signed/Unsigned halving add/subtract
3324 def SHASX : AAI<0b01100011, 0b11110011, "shasx">;
3325 def SHADD16 : AAI<0b01100011, 0b11110001, "shadd16">;
3326 def SHADD8 : AAI<0b01100011, 0b11111001, "shadd8">;
3327 def SHSAX : AAI<0b01100011, 0b11110101, "shsax">;
3328 def SHSUB16 : AAI<0b01100011, 0b11110111, "shsub16">;
3329 def SHSUB8 : AAI<0b01100011, 0b11111111, "shsub8">;
3330 def UHASX : AAI<0b01100111, 0b11110011, "uhasx">;
3331 def UHADD16 : AAI<0b01100111, 0b11110001, "uhadd16">;
3332 def UHADD8 : AAI<0b01100111, 0b11111001, "uhadd8">;
3333 def UHSAX : AAI<0b01100111, 0b11110101, "uhsax">;
3334 def UHSUB16 : AAI<0b01100111, 0b11110111, "uhsub16">;
3335 def UHSUB8 : AAI<0b01100111, 0b11111111, "uhsub8">;
3337 // Unsigned Sum of Absolute Differences [and Accumulate].
3339 def USAD8 : AI<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3340 MulFrm /* for convenience */, NoItinerary, "usad8",
3341 "\t$Rd, $Rn, $Rm", []>,
3342 Requires<[IsARM, HasV6]>, Sched<[WriteALU, ReadALU, ReadALU]> {
3346 let Inst{27-20} = 0b01111000;
3347 let Inst{15-12} = 0b1111;
3348 let Inst{7-4} = 0b0001;
3349 let Inst{19-16} = Rd;
3350 let Inst{11-8} = Rm;
3353 def USADA8 : AI<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3354 MulFrm /* for convenience */, NoItinerary, "usada8",
3355 "\t$Rd, $Rn, $Rm, $Ra", []>,
3356 Requires<[IsARM, HasV6]>, Sched<[WriteALU, ReadALU, ReadALU]>{
3361 let Inst{27-20} = 0b01111000;
3362 let Inst{7-4} = 0b0001;
3363 let Inst{19-16} = Rd;
3364 let Inst{15-12} = Ra;
3365 let Inst{11-8} = Rm;
3369 // Signed/Unsigned saturate
3371 def SSAT : AI<(outs GPRnopc:$Rd),
3372 (ins imm1_32:$sat_imm, GPRnopc:$Rn, shift_imm:$sh),
3373 SatFrm, NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> {
3378 let Inst{27-21} = 0b0110101;
3379 let Inst{5-4} = 0b01;
3380 let Inst{20-16} = sat_imm;
3381 let Inst{15-12} = Rd;
3382 let Inst{11-7} = sh{4-0};
3383 let Inst{6} = sh{5};
3387 def SSAT16 : AI<(outs GPRnopc:$Rd),
3388 (ins imm1_16:$sat_imm, GPRnopc:$Rn), SatFrm,
3389 NoItinerary, "ssat16", "\t$Rd, $sat_imm, $Rn", []> {
3393 let Inst{27-20} = 0b01101010;
3394 let Inst{11-4} = 0b11110011;
3395 let Inst{15-12} = Rd;
3396 let Inst{19-16} = sat_imm;
3400 def USAT : AI<(outs GPRnopc:$Rd),
3401 (ins imm0_31:$sat_imm, GPRnopc:$Rn, shift_imm:$sh),
3402 SatFrm, NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> {
3407 let Inst{27-21} = 0b0110111;
3408 let Inst{5-4} = 0b01;
3409 let Inst{15-12} = Rd;
3410 let Inst{11-7} = sh{4-0};
3411 let Inst{6} = sh{5};
3412 let Inst{20-16} = sat_imm;
3416 def USAT16 : AI<(outs GPRnopc:$Rd),
3417 (ins imm0_15:$sat_imm, GPRnopc:$Rn), SatFrm,
3418 NoItinerary, "usat16", "\t$Rd, $sat_imm, $Rn", []> {
3422 let Inst{27-20} = 0b01101110;
3423 let Inst{11-4} = 0b11110011;
3424 let Inst{15-12} = Rd;
3425 let Inst{19-16} = sat_imm;
3429 def : ARMV6Pat<(int_arm_ssat GPRnopc:$a, imm:$pos),
3430 (SSAT imm:$pos, GPRnopc:$a, 0)>;
3431 def : ARMV6Pat<(int_arm_usat GPRnopc:$a, imm:$pos),
3432 (USAT imm:$pos, GPRnopc:$a, 0)>;
3434 //===----------------------------------------------------------------------===//
3435 // Bitwise Instructions.
3438 defm AND : AsI1_bin_irs<0b0000, "and",
3439 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
3440 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
3441 defm ORR : AsI1_bin_irs<0b1100, "orr",
3442 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
3443 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
3444 defm EOR : AsI1_bin_irs<0b0001, "eor",
3445 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
3446 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
3447 defm BIC : AsI1_bin_irs<0b1110, "bic",
3448 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
3449 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
3451 // FIXME: bf_inv_mask_imm should be two operands, the lsb and the msb, just
3452 // like in the actual instruction encoding. The complexity of mapping the mask
3453 // to the lsb/msb pair should be handled by ISel, not encapsulated in the
3454 // instruction description.
3455 def BFC : I<(outs GPR:$Rd), (ins GPR:$src, bf_inv_mask_imm:$imm),
3456 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
3457 "bfc", "\t$Rd, $imm", "$src = $Rd",
3458 [(set GPR:$Rd, (and GPR:$src, bf_inv_mask_imm:$imm))]>,
3459 Requires<[IsARM, HasV6T2]> {
3462 let Inst{27-21} = 0b0111110;
3463 let Inst{6-0} = 0b0011111;
3464 let Inst{15-12} = Rd;
3465 let Inst{11-7} = imm{4-0}; // lsb
3466 let Inst{20-16} = imm{9-5}; // msb
3469 // A8.6.18 BFI - Bitfield insert (Encoding A1)
3470 def BFI:I<(outs GPRnopc:$Rd), (ins GPRnopc:$src, GPR:$Rn, bf_inv_mask_imm:$imm),
3471 AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
3472 "bfi", "\t$Rd, $Rn, $imm", "$src = $Rd",
3473 [(set GPRnopc:$Rd, (ARMbfi GPRnopc:$src, GPR:$Rn,
3474 bf_inv_mask_imm:$imm))]>,
3475 Requires<[IsARM, HasV6T2]> {
3479 let Inst{27-21} = 0b0111110;
3480 let Inst{6-4} = 0b001; // Rn: Inst{3-0} != 15
3481 let Inst{15-12} = Rd;
3482 let Inst{11-7} = imm{4-0}; // lsb
3483 let Inst{20-16} = imm{9-5}; // width
3487 def MVNr : AsI1<0b1111, (outs GPR:$Rd), (ins GPR:$Rm), DPFrm, IIC_iMVNr,
3488 "mvn", "\t$Rd, $Rm",
3489 [(set GPR:$Rd, (not GPR:$Rm))]>, UnaryDP, Sched<[WriteALU]> {
3493 let Inst{19-16} = 0b0000;
3494 let Inst{11-4} = 0b00000000;
3495 let Inst{15-12} = Rd;
3498 def MVNsi : AsI1<0b1111, (outs GPR:$Rd), (ins so_reg_imm:$shift),
3499 DPSoRegImmFrm, IIC_iMVNsr, "mvn", "\t$Rd, $shift",
3500 [(set GPR:$Rd, (not so_reg_imm:$shift))]>, UnaryDP,
3505 let Inst{19-16} = 0b0000;
3506 let Inst{15-12} = Rd;
3507 let Inst{11-5} = shift{11-5};
3509 let Inst{3-0} = shift{3-0};
3511 def MVNsr : AsI1<0b1111, (outs GPR:$Rd), (ins so_reg_reg:$shift),
3512 DPSoRegRegFrm, IIC_iMVNsr, "mvn", "\t$Rd, $shift",
3513 [(set GPR:$Rd, (not so_reg_reg:$shift))]>, UnaryDP,
3518 let Inst{19-16} = 0b0000;
3519 let Inst{15-12} = Rd;
3520 let Inst{11-8} = shift{11-8};
3522 let Inst{6-5} = shift{6-5};
3524 let Inst{3-0} = shift{3-0};
3526 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
3527 def MVNi : AsI1<0b1111, (outs GPR:$Rd), (ins so_imm:$imm), DPFrm,
3528 IIC_iMVNi, "mvn", "\t$Rd, $imm",
3529 [(set GPR:$Rd, so_imm_not:$imm)]>,UnaryDP, Sched<[WriteALU]> {
3533 let Inst{19-16} = 0b0000;
3534 let Inst{15-12} = Rd;
3535 let Inst{11-0} = imm;
3538 def : ARMPat<(and GPR:$src, so_imm_not:$imm),
3539 (BICri GPR:$src, so_imm_not:$imm)>;
3541 //===----------------------------------------------------------------------===//
3542 // Multiply Instructions.
3544 class AsMul1I32<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
3545 string opc, string asm, list<dag> pattern>
3546 : AsMul1I<opcod, oops, iops, itin, opc, asm, pattern> {
3550 let Inst{19-16} = Rd;
3551 let Inst{11-8} = Rm;
3554 class AsMul1I64<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
3555 string opc, string asm, list<dag> pattern>
3556 : AsMul1I<opcod, oops, iops, itin, opc, asm, pattern> {
3561 let Inst{19-16} = RdHi;
3562 let Inst{15-12} = RdLo;
3563 let Inst{11-8} = Rm;
3566 class AsMla1I64<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
3567 string opc, string asm, list<dag> pattern>
3568 : AsMul1I<opcod, oops, iops, itin, opc, asm, pattern> {
3573 let Inst{19-16} = RdHi;
3574 let Inst{15-12} = RdLo;
3575 let Inst{11-8} = Rm;
3579 // FIXME: The v5 pseudos are only necessary for the additional Constraint
3580 // property. Remove them when it's possible to add those properties
3581 // on an individual MachineInstr, not just an instruction description.
3582 let isCommutable = 1, TwoOperandAliasConstraint = "$Rn = $Rd" in {
3583 def MUL : AsMul1I32<0b0000000, (outs GPRnopc:$Rd),
3584 (ins GPRnopc:$Rn, GPRnopc:$Rm),
3585 IIC_iMUL32, "mul", "\t$Rd, $Rn, $Rm",
3586 [(set GPRnopc:$Rd, (mul GPRnopc:$Rn, GPRnopc:$Rm))]>,
3587 Requires<[IsARM, HasV6]> {
3588 let Inst{15-12} = 0b0000;
3589 let Unpredictable{15-12} = 0b1111;
3592 let Constraints = "@earlyclobber $Rd" in
3593 def MULv5: ARMPseudoExpand<(outs GPRnopc:$Rd), (ins GPRnopc:$Rn, GPRnopc:$Rm,
3594 pred:$p, cc_out:$s),
3596 [(set GPRnopc:$Rd, (mul GPRnopc:$Rn, GPRnopc:$Rm))],
3597 (MUL GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p, cc_out:$s)>,
3598 Requires<[IsARM, NoV6, UseMulOps]>;
3601 def MLA : AsMul1I32<0b0000001, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3602 IIC_iMAC32, "mla", "\t$Rd, $Rn, $Rm, $Ra",
3603 [(set GPR:$Rd, (add (mul GPR:$Rn, GPR:$Rm), GPR:$Ra))]>,
3604 Requires<[IsARM, HasV6, UseMulOps]> {
3606 let Inst{15-12} = Ra;
3609 let Constraints = "@earlyclobber $Rd" in
3610 def MLAv5: ARMPseudoExpand<(outs GPR:$Rd),
3611 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra, pred:$p, cc_out:$s),
3613 [(set GPR:$Rd, (add (mul GPR:$Rn, GPR:$Rm), GPR:$Ra))],
3614 (MLA GPR:$Rd, GPR:$Rn, GPR:$Rm, GPR:$Ra, pred:$p, cc_out:$s)>,
3615 Requires<[IsARM, NoV6]>;
3617 def MLS : AMul1I<0b0000011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3618 IIC_iMAC32, "mls", "\t$Rd, $Rn, $Rm, $Ra",
3619 [(set GPR:$Rd, (sub GPR:$Ra, (mul GPR:$Rn, GPR:$Rm)))]>,
3620 Requires<[IsARM, HasV6T2, UseMulOps]> {
3625 let Inst{19-16} = Rd;
3626 let Inst{15-12} = Ra;
3627 let Inst{11-8} = Rm;
3631 // Extra precision multiplies with low / high results
3632 let neverHasSideEffects = 1 in {
3633 let isCommutable = 1 in {
3634 def SMULL : AsMul1I64<0b0000110, (outs GPR:$RdLo, GPR:$RdHi),
3635 (ins GPR:$Rn, GPR:$Rm), IIC_iMUL64,
3636 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3637 Requires<[IsARM, HasV6]>;
3639 def UMULL : AsMul1I64<0b0000100, (outs GPR:$RdLo, GPR:$RdHi),
3640 (ins GPR:$Rn, GPR:$Rm), IIC_iMUL64,
3641 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3642 Requires<[IsARM, HasV6]>;
3644 let Constraints = "@earlyclobber $RdLo,@earlyclobber $RdHi" in {
3645 def SMULLv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3646 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
3648 (SMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
3649 Requires<[IsARM, NoV6]>;
3651 def UMULLv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3652 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
3654 (UMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
3655 Requires<[IsARM, NoV6]>;
3659 // Multiply + accumulate
3660 def SMLAL : AsMla1I64<0b0000111, (outs GPR:$RdLo, GPR:$RdHi),
3661 (ins GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi), IIC_iMAC64,
3662 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3663 RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">, Requires<[IsARM, HasV6]>;
3664 def UMLAL : AsMla1I64<0b0000101, (outs GPR:$RdLo, GPR:$RdHi),
3665 (ins GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi), IIC_iMAC64,
3666 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3667 RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">, Requires<[IsARM, HasV6]>;
3669 def UMAAL : AMul1I <0b0000010, (outs GPR:$RdLo, GPR:$RdHi),
3670 (ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
3671 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3672 Requires<[IsARM, HasV6]> {
3677 let Inst{19-16} = RdHi;
3678 let Inst{15-12} = RdLo;
3679 let Inst{11-8} = Rm;
3683 let Constraints = "$RLo = $RdLo,$RHi = $RdHi" in {
3684 def SMLALv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3685 (ins GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi, pred:$p, cc_out:$s),
3687 (SMLAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi,
3688 pred:$p, cc_out:$s)>,
3689 Requires<[IsARM, NoV6]>;
3690 def UMLALv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3691 (ins GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi, pred:$p, cc_out:$s),
3693 (UMLAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, GPR:$RLo, GPR:$RHi,
3694 pred:$p, cc_out:$s)>,
3695 Requires<[IsARM, NoV6]>;
3698 let Constraints = "@earlyclobber $RdLo,@earlyclobber $RdHi" in {
3699 def UMAALv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
3700 (ins GPR:$Rn, GPR:$Rm, pred:$p),
3702 (UMAAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p)>,
3703 Requires<[IsARM, NoV6]>;
3706 } // neverHasSideEffects
3708 // Most significant word multiply
3709 def SMMUL : AMul2I <0b0111010, 0b0001, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3710 IIC_iMUL32, "smmul", "\t$Rd, $Rn, $Rm",
3711 [(set GPR:$Rd, (mulhs GPR:$Rn, GPR:$Rm))]>,
3712 Requires<[IsARM, HasV6]> {
3713 let Inst{15-12} = 0b1111;
3716 def SMMULR : AMul2I <0b0111010, 0b0011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3717 IIC_iMUL32, "smmulr", "\t$Rd, $Rn, $Rm", []>,
3718 Requires<[IsARM, HasV6]> {
3719 let Inst{15-12} = 0b1111;
3722 def SMMLA : AMul2Ia <0b0111010, 0b0001, (outs GPR:$Rd),
3723 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3724 IIC_iMAC32, "smmla", "\t$Rd, $Rn, $Rm, $Ra",
3725 [(set GPR:$Rd, (add (mulhs GPR:$Rn, GPR:$Rm), GPR:$Ra))]>,
3726 Requires<[IsARM, HasV6, UseMulOps]>;
3728 def SMMLAR : AMul2Ia <0b0111010, 0b0011, (outs GPR:$Rd),
3729 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3730 IIC_iMAC32, "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
3731 Requires<[IsARM, HasV6]>;
3733 def SMMLS : AMul2Ia <0b0111010, 0b1101, (outs GPR:$Rd),
3734 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3735 IIC_iMAC32, "smmls", "\t$Rd, $Rn, $Rm, $Ra", []>,
3736 Requires<[IsARM, HasV6, UseMulOps]>;
3738 def SMMLSR : AMul2Ia <0b0111010, 0b1111, (outs GPR:$Rd),
3739 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
3740 IIC_iMAC32, "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
3741 Requires<[IsARM, HasV6]>;
3743 multiclass AI_smul<string opc, PatFrag opnode> {
3744 def BB : AMulxyI<0b0001011, 0b00, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3745 IIC_iMUL16, !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
3746 [(set GPR:$Rd, (opnode (sext_inreg GPR:$Rn, i16),
3747 (sext_inreg GPR:$Rm, i16)))]>,
3748 Requires<[IsARM, HasV5TE]>;
3750 def BT : AMulxyI<0b0001011, 0b10, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3751 IIC_iMUL16, !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
3752 [(set GPR:$Rd, (opnode (sext_inreg GPR:$Rn, i16),
3753 (sra GPR:$Rm, (i32 16))))]>,
3754 Requires<[IsARM, HasV5TE]>;
3756 def TB : AMulxyI<0b0001011, 0b01, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3757 IIC_iMUL16, !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
3758 [(set GPR:$Rd, (opnode (sra GPR:$Rn, (i32 16)),
3759 (sext_inreg GPR:$Rm, i16)))]>,
3760 Requires<[IsARM, HasV5TE]>;
3762 def TT : AMulxyI<0b0001011, 0b11, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3763 IIC_iMUL16, !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
3764 [(set GPR:$Rd, (opnode (sra GPR:$Rn, (i32 16)),
3765 (sra GPR:$Rm, (i32 16))))]>,
3766 Requires<[IsARM, HasV5TE]>;
3768 def WB : AMulxyI<0b0001001, 0b01, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3769 IIC_iMUL16, !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
3770 [(set GPR:$Rd, (sra (opnode GPR:$Rn,
3771 (sext_inreg GPR:$Rm, i16)), (i32 16)))]>,
3772 Requires<[IsARM, HasV5TE]>;
3774 def WT : AMulxyI<0b0001001, 0b11, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3775 IIC_iMUL16, !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
3776 [(set GPR:$Rd, (sra (opnode GPR:$Rn,
3777 (sra GPR:$Rm, (i32 16))), (i32 16)))]>,
3778 Requires<[IsARM, HasV5TE]>;
3782 multiclass AI_smla<string opc, PatFrag opnode> {
3783 let DecoderMethod = "DecodeSMLAInstruction" in {
3784 def BB : AMulxyIa<0b0001000, 0b00, (outs GPRnopc:$Rd),
3785 (ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
3786 IIC_iMAC16, !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
3787 [(set GPRnopc:$Rd, (add GPR:$Ra,
3788 (opnode (sext_inreg GPRnopc:$Rn, i16),
3789 (sext_inreg GPRnopc:$Rm, i16))))]>,
3790 Requires<[IsARM, HasV5TE, UseMulOps]>;
3792 def BT : AMulxyIa<0b0001000, 0b10, (outs GPRnopc:$Rd),
3793 (ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
3794 IIC_iMAC16, !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
3796 (add GPR:$Ra, (opnode (sext_inreg GPRnopc:$Rn, i16),
3797 (sra GPRnopc:$Rm, (i32 16)))))]>,
3798 Requires<[IsARM, HasV5TE, UseMulOps]>;
3800 def TB : AMulxyIa<0b0001000, 0b01, (outs GPRnopc:$Rd),
3801 (ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
3802 IIC_iMAC16, !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
3804 (add GPR:$Ra, (opnode (sra GPRnopc:$Rn, (i32 16)),
3805 (sext_inreg GPRnopc:$Rm, i16))))]>,
3806 Requires<[IsARM, HasV5TE, UseMulOps]>;
3808 def TT : AMulxyIa<0b0001000, 0b11, (outs GPRnopc:$Rd),
3809 (ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
3810 IIC_iMAC16, !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
3812 (add GPR:$Ra, (opnode (sra GPRnopc:$Rn, (i32 16)),
3813 (sra GPRnopc:$Rm, (i32 16)))))]>,
3814 Requires<[IsARM, HasV5TE, UseMulOps]>;
3816 def WB : AMulxyIa<0b0001001, 0b00, (outs GPRnopc:$Rd),
3817 (ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
3818 IIC_iMAC16, !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
3820 (add GPR:$Ra, (sra (opnode GPRnopc:$Rn,
3821 (sext_inreg GPRnopc:$Rm, i16)), (i32 16))))]>,
3822 Requires<[IsARM, HasV5TE, UseMulOps]>;
3824 def WT : AMulxyIa<0b0001001, 0b10, (outs GPRnopc:$Rd),
3825 (ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
3826 IIC_iMAC16, !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
3828 (add GPR:$Ra, (sra (opnode GPRnopc:$Rn,
3829 (sra GPRnopc:$Rm, (i32 16))), (i32 16))))]>,
3830 Requires<[IsARM, HasV5TE, UseMulOps]>;
3834 defm SMUL : AI_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
3835 defm SMLA : AI_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
3837 // Halfword multiply accumulate long: SMLAL<x><y>.
3838 def SMLALBB : AMulxyI64<0b0001010, 0b00, (outs GPRnopc:$RdLo, GPRnopc:$RdHi),
3839 (ins GPRnopc:$Rn, GPRnopc:$Rm),
3840 IIC_iMAC64, "smlalbb", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3841 Requires<[IsARM, HasV5TE]>;
3843 def SMLALBT : AMulxyI64<0b0001010, 0b10, (outs GPRnopc:$RdLo, GPRnopc:$RdHi),
3844 (ins GPRnopc:$Rn, GPRnopc:$Rm),
3845 IIC_iMAC64, "smlalbt", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3846 Requires<[IsARM, HasV5TE]>;
3848 def SMLALTB : AMulxyI64<0b0001010, 0b01, (outs GPRnopc:$RdLo, GPRnopc:$RdHi),
3849 (ins GPRnopc:$Rn, GPRnopc:$Rm),
3850 IIC_iMAC64, "smlaltb", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3851 Requires<[IsARM, HasV5TE]>;
3853 def SMLALTT : AMulxyI64<0b0001010, 0b11, (outs GPRnopc:$RdLo, GPRnopc:$RdHi),
3854 (ins GPRnopc:$Rn, GPRnopc:$Rm),
3855 IIC_iMAC64, "smlaltt", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
3856 Requires<[IsARM, HasV5TE]>;
3858 // Helper class for AI_smld.
3859 class AMulDualIbase<bit long, bit sub, bit swap, dag oops, dag iops,
3860 InstrItinClass itin, string opc, string asm>
3861 : AI<oops, iops, MulFrm, itin, opc, asm, []>, Requires<[IsARM, HasV6]> {
3864 let Inst{27-23} = 0b01110;
3865 let Inst{22} = long;
3866 let Inst{21-20} = 0b00;
3867 let Inst{11-8} = Rm;
3874 class AMulDualI<bit long, bit sub, bit swap, dag oops, dag iops,
3875 InstrItinClass itin, string opc, string asm>
3876 : AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
3878 let Inst{15-12} = 0b1111;
3879 let Inst{19-16} = Rd;
3881 class AMulDualIa<bit long, bit sub, bit swap, dag oops, dag iops,
3882 InstrItinClass itin, string opc, string asm>
3883 : AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
3886 let Inst{19-16} = Rd;
3887 let Inst{15-12} = Ra;
3889 class AMulDualI64<bit long, bit sub, bit swap, dag oops, dag iops,
3890 InstrItinClass itin, string opc, string asm>
3891 : AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
3894 let Inst{19-16} = RdHi;
3895 let Inst{15-12} = RdLo;
3898 multiclass AI_smld<bit sub, string opc> {
3900 def D : AMulDualIa<0, sub, 0, (outs GPRnopc:$Rd),
3901 (ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
3902 NoItinerary, !strconcat(opc, "d"), "\t$Rd, $Rn, $Rm, $Ra">;
3904 def DX: AMulDualIa<0, sub, 1, (outs GPRnopc:$Rd),
3905 (ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
3906 NoItinerary, !strconcat(opc, "dx"), "\t$Rd, $Rn, $Rm, $Ra">;
3908 def LD: AMulDualI64<1, sub, 0, (outs GPRnopc:$RdLo, GPRnopc:$RdHi),
3909 (ins GPRnopc:$Rn, GPRnopc:$Rm), NoItinerary,
3910 !strconcat(opc, "ld"), "\t$RdLo, $RdHi, $Rn, $Rm">;
3912 def LDX : AMulDualI64<1, sub, 1, (outs GPRnopc:$RdLo, GPRnopc:$RdHi),
3913 (ins GPRnopc:$Rn, GPRnopc:$Rm), NoItinerary,
3914 !strconcat(opc, "ldx"),"\t$RdLo, $RdHi, $Rn, $Rm">;
3918 defm SMLA : AI_smld<0, "smla">;
3919 defm SMLS : AI_smld<1, "smls">;
3921 multiclass AI_sdml<bit sub, string opc> {
3923 def D:AMulDualI<0, sub, 0, (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, GPRnopc:$Rm),
3924 NoItinerary, !strconcat(opc, "d"), "\t$Rd, $Rn, $Rm">;
3925 def DX:AMulDualI<0, sub, 1, (outs GPRnopc:$Rd),(ins GPRnopc:$Rn, GPRnopc:$Rm),
3926 NoItinerary, !strconcat(opc, "dx"), "\t$Rd, $Rn, $Rm">;
3929 defm SMUA : AI_sdml<0, "smua">;
3930 defm SMUS : AI_sdml<1, "smus">;
3932 //===----------------------------------------------------------------------===//
3933 // Division Instructions (ARMv7-A with virtualization extension)
3935 def SDIV : ADivA1I<0b001, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), IIC_iDIV,
3936 "sdiv", "\t$Rd, $Rn, $Rm",
3937 [(set GPR:$Rd, (sdiv GPR:$Rn, GPR:$Rm))]>,
3938 Requires<[IsARM, HasDivideInARM]>;
3940 def UDIV : ADivA1I<0b011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), IIC_iDIV,
3941 "udiv", "\t$Rd, $Rn, $Rm",
3942 [(set GPR:$Rd, (udiv GPR:$Rn, GPR:$Rm))]>,
3943 Requires<[IsARM, HasDivideInARM]>;
3945 //===----------------------------------------------------------------------===//
3946 // Misc. Arithmetic Instructions.
3949 def CLZ : AMiscA1I<0b000010110, 0b0001, (outs GPR:$Rd), (ins GPR:$Rm),
3950 IIC_iUNAr, "clz", "\t$Rd, $Rm",
3951 [(set GPR:$Rd, (ctlz GPR:$Rm))]>, Requires<[IsARM, HasV5T]>,
3954 def RBIT : AMiscA1I<0b01101111, 0b0011, (outs GPR:$Rd), (ins GPR:$Rm),
3955 IIC_iUNAr, "rbit", "\t$Rd, $Rm",
3956 [(set GPR:$Rd, (ARMrbit GPR:$Rm))]>,
3957 Requires<[IsARM, HasV6T2]>,
3960 def REV : AMiscA1I<0b01101011, 0b0011, (outs GPR:$Rd), (ins GPR:$Rm),
3961 IIC_iUNAr, "rev", "\t$Rd, $Rm",
3962 [(set GPR:$Rd, (bswap GPR:$Rm))]>, Requires<[IsARM, HasV6]>,
3965 let AddedComplexity = 5 in
3966 def REV16 : AMiscA1I<0b01101011, 0b1011, (outs GPR:$Rd), (ins GPR:$Rm),
3967 IIC_iUNAr, "rev16", "\t$Rd, $Rm",
3968 [(set GPR:$Rd, (rotr (bswap GPR:$Rm), (i32 16)))]>,
3969 Requires<[IsARM, HasV6]>,
3972 let AddedComplexity = 5 in
3973 def REVSH : AMiscA1I<0b01101111, 0b1011, (outs GPR:$Rd), (ins GPR:$Rm),
3974 IIC_iUNAr, "revsh", "\t$Rd, $Rm",
3975 [(set GPR:$Rd, (sra (bswap GPR:$Rm), (i32 16)))]>,
3976 Requires<[IsARM, HasV6]>,
3979 def : ARMV6Pat<(or (sra (shl GPR:$Rm, (i32 24)), (i32 16)),
3980 (and (srl GPR:$Rm, (i32 8)), 0xFF)),
3983 def PKHBT : APKHI<0b01101000, 0, (outs GPRnopc:$Rd),
3984 (ins GPRnopc:$Rn, GPRnopc:$Rm, pkh_lsl_amt:$sh),
3985 IIC_iALUsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
3986 [(set GPRnopc:$Rd, (or (and GPRnopc:$Rn, 0xFFFF),
3987 (and (shl GPRnopc:$Rm, pkh_lsl_amt:$sh),
3989 Requires<[IsARM, HasV6]>,
3990 Sched<[WriteALUsi, ReadALU]>;
3992 // Alternate cases for PKHBT where identities eliminate some nodes.
3993 def : ARMV6Pat<(or (and GPRnopc:$Rn, 0xFFFF), (and GPRnopc:$Rm, 0xFFFF0000)),
3994 (PKHBT GPRnopc:$Rn, GPRnopc:$Rm, 0)>;
3995 def : ARMV6Pat<(or (and GPRnopc:$Rn, 0xFFFF), (shl GPRnopc:$Rm, imm16_31:$sh)),
3996 (PKHBT GPRnopc:$Rn, GPRnopc:$Rm, imm16_31:$sh)>;
3998 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
3999 // will match the pattern below.
4000 def PKHTB : APKHI<0b01101000, 1, (outs GPRnopc:$Rd),
4001 (ins GPRnopc:$Rn, GPRnopc:$Rm, pkh_asr_amt:$sh),
4002 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
4003 [(set GPRnopc:$Rd, (or (and GPRnopc:$Rn, 0xFFFF0000),
4004 (and (sra GPRnopc:$Rm, pkh_asr_amt:$sh),
4006 Requires<[IsARM, HasV6]>,
4007 Sched<[WriteALUsi, ReadALU]>;
4009 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
4010 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
4011 // We also can not replace a srl (17..31) by an arithmetic shift we would use in
4012 // pkhtb src1, src2, asr (17..31).
4013 def : ARMV6Pat<(or (and GPRnopc:$src1, 0xFFFF0000),
4014 (srl GPRnopc:$src2, imm16:$sh)),
4015 (PKHTB GPRnopc:$src1, GPRnopc:$src2, imm16:$sh)>;
4016 def : ARMV6Pat<(or (and GPRnopc:$src1, 0xFFFF0000),
4017 (sra GPRnopc:$src2, imm16_31:$sh)),
4018 (PKHTB GPRnopc:$src1, GPRnopc:$src2, imm16_31:$sh)>;
4019 def : ARMV6Pat<(or (and GPRnopc:$src1, 0xFFFF0000),
4020 (and (srl GPRnopc:$src2, imm1_15:$sh), 0xFFFF)),
4021 (PKHTB GPRnopc:$src1, GPRnopc:$src2, imm1_15:$sh)>;
4023 //===----------------------------------------------------------------------===//
4027 // + CRC32{B,H,W} 0x04C11DB7
4028 // + CRC32C{B,H,W} 0x1EDC6F41
4031 class AI_crc32<bit C, bits<2> sz, string suffix, SDPatternOperator builtin>
4032 : AInoP<(outs GPRnopc:$Rd), (ins GPRnopc:$Rn, GPRnopc:$Rm), MiscFrm, NoItinerary,
4033 !strconcat("crc32", suffix), "\t$Rd, $Rn, $Rm",
4034 [(set GPRnopc:$Rd, (builtin GPRnopc:$Rn, GPRnopc:$Rm))]>,
4035 Requires<[IsARM, HasV8]> {
4040 let Inst{31-28} = 0b1110;
4041 let Inst{27-23} = 0b00010;
4042 let Inst{22-21} = sz;
4044 let Inst{19-16} = Rn;
4045 let Inst{15-12} = Rd;
4046 let Inst{11-10} = 0b00;
4049 let Inst{7-4} = 0b0100;
4052 let Unpredictable{11-8} = 0b1101;
4055 def CRC32B : AI_crc32<0, 0b00, "b", int_arm_crc32b>;
4056 def CRC32CB : AI_crc32<1, 0b00, "cb", int_arm_crc32cb>;
4057 def CRC32H : AI_crc32<0, 0b01, "h", int_arm_crc32h>;
4058 def CRC32CH : AI_crc32<1, 0b01, "ch", int_arm_crc32ch>;
4059 def CRC32W : AI_crc32<0, 0b10, "w", int_arm_crc32w>;
4060 def CRC32CW : AI_crc32<1, 0b10, "cw", int_arm_crc32cw>;
4062 //===----------------------------------------------------------------------===//
4063 // Comparison Instructions...
4066 defm CMP : AI1_cmp_irs<0b1010, "cmp",
4067 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsr,
4068 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
4070 // ARMcmpZ can re-use the above instruction definitions.
4071 def : ARMPat<(ARMcmpZ GPR:$src, so_imm:$imm),
4072 (CMPri GPR:$src, so_imm:$imm)>;
4073 def : ARMPat<(ARMcmpZ GPR:$src, GPR:$rhs),
4074 (CMPrr GPR:$src, GPR:$rhs)>;
4075 def : ARMPat<(ARMcmpZ GPR:$src, so_reg_imm:$rhs),
4076 (CMPrsi GPR:$src, so_reg_imm:$rhs)>;
4077 def : ARMPat<(ARMcmpZ GPR:$src, so_reg_reg:$rhs),
4078 (CMPrsr GPR:$src, so_reg_reg:$rhs)>;
4080 // CMN register-integer
4081 let isCompare = 1, Defs = [CPSR] in {
4082 def CMNri : AI1<0b1011, (outs), (ins GPR:$Rn, so_imm:$imm), DPFrm, IIC_iCMPi,
4083 "cmn", "\t$Rn, $imm",
4084 [(ARMcmn GPR:$Rn, so_imm:$imm)]>,
4085 Sched<[WriteCMP, ReadALU]> {
4090 let Inst{19-16} = Rn;
4091 let Inst{15-12} = 0b0000;
4092 let Inst{11-0} = imm;
4094 let Unpredictable{15-12} = 0b1111;
4097 // CMN register-register/shift
4098 def CMNzrr : AI1<0b1011, (outs), (ins GPR:$Rn, GPR:$Rm), DPFrm, IIC_iCMPr,
4099 "cmn", "\t$Rn, $Rm",
4100 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
4101 GPR:$Rn, GPR:$Rm)]>, Sched<[WriteCMP, ReadALU, ReadALU]> {
4104 let isCommutable = 1;
4107 let Inst{19-16} = Rn;
4108 let Inst{15-12} = 0b0000;
4109 let Inst{11-4} = 0b00000000;
4112 let Unpredictable{15-12} = 0b1111;
4115 def CMNzrsi : AI1<0b1011, (outs),
4116 (ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm, IIC_iCMPsr,
4117 "cmn", "\t$Rn, $shift",
4118 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
4119 GPR:$Rn, so_reg_imm:$shift)]>,
4120 Sched<[WriteCMPsi, ReadALU]> {
4125 let Inst{19-16} = Rn;
4126 let Inst{15-12} = 0b0000;
4127 let Inst{11-5} = shift{11-5};
4129 let Inst{3-0} = shift{3-0};
4131 let Unpredictable{15-12} = 0b1111;
4134 def CMNzrsr : AI1<0b1011, (outs),
4135 (ins GPRnopc:$Rn, so_reg_reg:$shift), DPSoRegRegFrm, IIC_iCMPsr,
4136 "cmn", "\t$Rn, $shift",
4137 [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
4138 GPRnopc:$Rn, so_reg_reg:$shift)]>,
4139 Sched<[WriteCMPsr, ReadALU]> {
4144 let Inst{19-16} = Rn;
4145 let Inst{15-12} = 0b0000;
4146 let Inst{11-8} = shift{11-8};
4148 let Inst{6-5} = shift{6-5};
4150 let Inst{3-0} = shift{3-0};
4152 let Unpredictable{15-12} = 0b1111;
4157 def : ARMPat<(ARMcmp GPR:$src, so_imm_neg:$imm),
4158 (CMNri GPR:$src, so_imm_neg:$imm)>;
4160 def : ARMPat<(ARMcmpZ GPR:$src, so_imm_neg:$imm),
4161 (CMNri GPR:$src, so_imm_neg:$imm)>;
4163 // Note that TST/TEQ don't set all the same flags that CMP does!
4164 defm TST : AI1_cmp_irs<0b1000, "tst",
4165 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsr,
4166 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>, 1>;
4167 defm TEQ : AI1_cmp_irs<0b1001, "teq",
4168 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsr,
4169 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>, 1>;
4171 // Pseudo i64 compares for some floating point compares.
4172 let usesCustomInserter = 1, isBranch = 1, isTerminator = 1,
4174 def BCCi64 : PseudoInst<(outs),
4175 (ins i32imm:$cc, GPR:$lhs1, GPR:$lhs2, GPR:$rhs1, GPR:$rhs2, brtarget:$dst),
4177 [(ARMBcci64 imm:$cc, GPR:$lhs1, GPR:$lhs2, GPR:$rhs1, GPR:$rhs2, bb:$dst)]>,
4180 def BCCZi64 : PseudoInst<(outs),
4181 (ins i32imm:$cc, GPR:$lhs1, GPR:$lhs2, brtarget:$dst), IIC_Br,
4182 [(ARMBcci64 imm:$cc, GPR:$lhs1, GPR:$lhs2, 0, 0, bb:$dst)]>,
4184 } // usesCustomInserter
4187 // Conditional moves
4188 let neverHasSideEffects = 1 in {
4190 let isCommutable = 1, isSelect = 1 in
4191 def MOVCCr : ARMPseudoInst<(outs GPR:$Rd),
4192 (ins GPR:$false, GPR:$Rm, cmovpred:$p),
4194 [(set GPR:$Rd, (ARMcmov GPR:$false, GPR:$Rm,
4196 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
4198 def MOVCCsi : ARMPseudoInst<(outs GPR:$Rd),
4199 (ins GPR:$false, so_reg_imm:$shift, cmovpred:$p),
4202 (ARMcmov GPR:$false, so_reg_imm:$shift,
4204 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
4205 def MOVCCsr : ARMPseudoInst<(outs GPR:$Rd),
4206 (ins GPR:$false, so_reg_reg:$shift, cmovpred:$p),
4208 [(set GPR:$Rd, (ARMcmov GPR:$false, so_reg_reg:$shift,
4210 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
4213 let isMoveImm = 1 in
4215 : ARMPseudoInst<(outs GPR:$Rd),
4216 (ins GPR:$false, imm0_65535_expr:$imm, cmovpred:$p),
4218 [(set GPR:$Rd, (ARMcmov GPR:$false, imm0_65535:$imm,
4220 RegConstraint<"$false = $Rd">, Requires<[IsARM, HasV6T2]>,
4223 let isMoveImm = 1 in
4224 def MOVCCi : ARMPseudoInst<(outs GPR:$Rd),
4225 (ins GPR:$false, so_imm:$imm, cmovpred:$p),
4227 [(set GPR:$Rd, (ARMcmov GPR:$false, so_imm:$imm,
4229 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
4231 // Two instruction predicate mov immediate.
4232 let isMoveImm = 1 in
4234 : ARMPseudoInst<(outs GPR:$Rd),
4235 (ins GPR:$false, i32imm:$src, cmovpred:$p),
4237 [(set GPR:$Rd, (ARMcmov GPR:$false, imm:$src,
4239 RegConstraint<"$false = $Rd">, Requires<[IsARM, HasV6T2]>;
4241 let isMoveImm = 1 in
4242 def MVNCCi : ARMPseudoInst<(outs GPR:$Rd),
4243 (ins GPR:$false, so_imm:$imm, cmovpred:$p),
4245 [(set GPR:$Rd, (ARMcmov GPR:$false, so_imm_not:$imm,
4247 RegConstraint<"$false = $Rd">, Sched<[WriteALU]>;
4249 } // neverHasSideEffects
4252 //===----------------------------------------------------------------------===//
4253 // Atomic operations intrinsics
4256 def MemBarrierOptOperand : AsmOperandClass {
4257 let Name = "MemBarrierOpt";
4258 let ParserMethod = "parseMemBarrierOptOperand";
4260 def memb_opt : Operand<i32> {
4261 let PrintMethod = "printMemBOption";
4262 let ParserMatchClass = MemBarrierOptOperand;
4263 let DecoderMethod = "DecodeMemBarrierOption";
4266 def InstSyncBarrierOptOperand : AsmOperandClass {
4267 let Name = "InstSyncBarrierOpt";
4268 let ParserMethod = "parseInstSyncBarrierOptOperand";
4270 def instsyncb_opt : Operand<i32> {
4271 let PrintMethod = "printInstSyncBOption";
4272 let ParserMatchClass = InstSyncBarrierOptOperand;
4273 let DecoderMethod = "DecodeInstSyncBarrierOption";
4276 // memory barriers protect the atomic sequences
4277 let hasSideEffects = 1 in {
4278 def DMB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
4279 "dmb", "\t$opt", [(int_arm_dmb (i32 imm0_15:$opt))]>,
4280 Requires<[IsARM, HasDB]> {
4282 let Inst{31-4} = 0xf57ff05;
4283 let Inst{3-0} = opt;
4287 def DSB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
4288 "dsb", "\t$opt", [(int_arm_dsb (i32 imm0_15:$opt))]>,
4289 Requires<[IsARM, HasDB]> {
4291 let Inst{31-4} = 0xf57ff04;
4292 let Inst{3-0} = opt;
4295 // ISB has only full system option
4296 def ISB : AInoP<(outs), (ins instsyncb_opt:$opt), MiscFrm, NoItinerary,
4297 "isb", "\t$opt", []>,
4298 Requires<[IsARM, HasDB]> {
4300 let Inst{31-4} = 0xf57ff06;
4301 let Inst{3-0} = opt;
4304 let usesCustomInserter = 1, Defs = [CPSR] in {
4306 // Pseudo instruction that combines movs + predicated rsbmi
4307 // to implement integer ABS
4308 def ABS : ARMPseudoInst<(outs GPR:$dst), (ins GPR:$src), 8, NoItinerary, []>;
4310 // Atomic pseudo-insts which will be lowered to ldrex/strex loops.
4311 // (64-bit pseudos use a hand-written selection code).
4312 let mayLoad = 1, mayStore = 1 in {
4313 def ATOMIC_LOAD_ADD_I8 : PseudoInst<
4315 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4317 def ATOMIC_LOAD_SUB_I8 : PseudoInst<
4319 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4321 def ATOMIC_LOAD_AND_I8 : PseudoInst<
4323 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4325 def ATOMIC_LOAD_OR_I8 : PseudoInst<
4327 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4329 def ATOMIC_LOAD_XOR_I8 : PseudoInst<
4331 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4333 def ATOMIC_LOAD_NAND_I8 : PseudoInst<
4335 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4337 def ATOMIC_LOAD_MIN_I8 : PseudoInst<
4339 (ins GPR:$ptr, GPR:$val, i32imm:$ordering),
4341 def ATOMIC_LOAD_MAX_I8 : PseudoInst<
4343 (ins GPR:$ptr, GPR:$val, i32imm:$ordering),
4345 def ATOMIC_LOAD_UMIN_I8 : PseudoInst<
4347 (ins GPR:$ptr, GPR:$val, i32imm:$ordering),
4349 def ATOMIC_LOAD_UMAX_I8 : PseudoInst<
4351 (ins GPR:$ptr, GPR:$val, i32imm:$ordering),
4353 def ATOMIC_SWAP_I8 : PseudoInst<
4355 (ins GPR:$ptr, GPR:$new, i32imm:$ordering),
4357 def ATOMIC_CMP_SWAP_I8 : PseudoInst<
4359 (ins GPR:$ptr, GPR:$old, GPR:$new, i32imm:$ordering),
4361 def ATOMIC_LOAD_ADD_I16 : PseudoInst<
4363 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4365 def ATOMIC_LOAD_SUB_I16 : PseudoInst<
4367 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4369 def ATOMIC_LOAD_AND_I16 : PseudoInst<
4371 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4373 def ATOMIC_LOAD_OR_I16 : PseudoInst<
4375 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4377 def ATOMIC_LOAD_XOR_I16 : PseudoInst<
4379 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4381 def ATOMIC_LOAD_NAND_I16 : PseudoInst<
4383 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4385 def ATOMIC_LOAD_MIN_I16 : PseudoInst<
4387 (ins GPR:$ptr, GPR:$val, i32imm:$ordering),
4389 def ATOMIC_LOAD_MAX_I16 : PseudoInst<
4391 (ins GPR:$ptr, GPR:$val, i32imm:$ordering),
4393 def ATOMIC_LOAD_UMIN_I16 : PseudoInst<
4395 (ins GPR:$ptr, GPR:$val, i32imm:$ordering),
4397 def ATOMIC_LOAD_UMAX_I16 : PseudoInst<
4399 (ins GPR:$ptr, GPR:$val, i32imm:$ordering),
4401 def ATOMIC_SWAP_I16 : PseudoInst<
4403 (ins GPR:$ptr, GPR:$new, i32imm:$ordering),
4405 def ATOMIC_CMP_SWAP_I16 : PseudoInst<
4407 (ins GPR:$ptr, GPR:$old, GPR:$new, i32imm:$ordering),
4409 def ATOMIC_LOAD_ADD_I32 : PseudoInst<
4411 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4413 def ATOMIC_LOAD_SUB_I32 : PseudoInst<
4415 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4417 def ATOMIC_LOAD_AND_I32 : PseudoInst<
4419 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4421 def ATOMIC_LOAD_OR_I32 : PseudoInst<
4423 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4425 def ATOMIC_LOAD_XOR_I32 : PseudoInst<
4427 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4429 def ATOMIC_LOAD_NAND_I32 : PseudoInst<
4431 (ins GPR:$ptr, GPR:$incr, i32imm:$ordering),
4433 def ATOMIC_LOAD_MIN_I32 : PseudoInst<
4435 (ins GPR:$ptr, GPR:$val, i32imm:$ordering),
4437 def ATOMIC_LOAD_MAX_I32 : PseudoInst<
4439 (ins GPR:$ptr, GPR:$val, i32imm:$ordering),
4441 def ATOMIC_LOAD_UMIN_I32 : PseudoInst<
4443 (ins GPR:$ptr, GPR:$val, i32imm:$ordering),
4445 def ATOMIC_LOAD_UMAX_I32 : PseudoInst<
4447 (ins GPR:$ptr, GPR:$val, i32imm:$ordering),
4449 def ATOMIC_SWAP_I32 : PseudoInst<
4451 (ins GPR:$ptr, GPR:$new, i32imm:$ordering),
4453 def ATOMIC_CMP_SWAP_I32 : PseudoInst<
4455 (ins GPR:$ptr, GPR:$old, GPR:$new, i32imm:$ordering),
4457 def ATOMIC_LOAD_ADD_I64 : PseudoInst<
4458 (outs GPR:$dst1, GPR:$dst2),
4459 (ins GPR:$addr, GPR:$src1, GPR:$src2, i32imm:$ordering),
4461 def ATOMIC_LOAD_SUB_I64 : PseudoInst<
4462 (outs GPR:$dst1, GPR:$dst2),
4463 (ins GPR:$addr, GPR:$src1, GPR:$src2, i32imm:$ordering),
4465 def ATOMIC_LOAD_AND_I64 : PseudoInst<
4466 (outs GPR:$dst1, GPR:$dst2),
4467 (ins GPR:$addr, GPR:$src1, GPR:$src2, i32imm:$ordering),
4469 def ATOMIC_LOAD_OR_I64 : PseudoInst<
4470 (outs GPR:$dst1, GPR:$dst2),
4471 (ins GPR:$addr, GPR:$src1, GPR:$src2, i32imm:$ordering),
4473 def ATOMIC_LOAD_XOR_I64 : PseudoInst<
4474 (outs GPR:$dst1, GPR:$dst2),
4475 (ins GPR:$addr, GPR:$src1, GPR:$src2, i32imm:$ordering),
4477 def ATOMIC_LOAD_NAND_I64 : PseudoInst<
4478 (outs GPR:$dst1, GPR:$dst2),
4479 (ins GPR:$addr, GPR:$src1, GPR:$src2, i32imm:$ordering),
4481 def ATOMIC_LOAD_MIN_I64 : PseudoInst<
4482 (outs GPR:$dst1, GPR:$dst2),
4483 (ins GPR:$addr, GPR:$src1, GPR:$src2, i32imm:$ordering),
4485 def ATOMIC_LOAD_MAX_I64 : PseudoInst<
4486 (outs GPR:$dst1, GPR:$dst2),
4487 (ins GPR:$addr, GPR:$src1, GPR:$src2, i32imm:$ordering),
4489 def ATOMIC_LOAD_UMIN_I64 : PseudoInst<
4490 (outs GPR:$dst1, GPR:$dst2),
4491 (ins GPR:$addr, GPR:$src1, GPR:$src2, i32imm:$ordering),
4493 def ATOMIC_LOAD_UMAX_I64 : PseudoInst<
4494 (outs GPR:$dst1, GPR:$dst2),
4495 (ins GPR:$addr, GPR:$src1, GPR:$src2, i32imm:$ordering),
4497 def ATOMIC_SWAP_I64 : PseudoInst<
4498 (outs GPR:$dst1, GPR:$dst2),
4499 (ins GPR:$addr, GPR:$src1, GPR:$src2, i32imm:$ordering),
4501 def ATOMIC_CMP_SWAP_I64 : PseudoInst<
4502 (outs GPR:$dst1, GPR:$dst2),
4503 (ins GPR:$addr, GPR:$cmp1, GPR:$cmp2,
4504 GPR:$set1, GPR:$set2, i32imm:$ordering),
4508 def ATOMIC_LOAD_I64 : PseudoInst<
4509 (outs GPR:$dst1, GPR:$dst2),
4510 (ins GPR:$addr, i32imm:$ordering),
4513 def ATOMIC_STORE_I64 : PseudoInst<
4514 (outs GPR:$dst1, GPR:$dst2),
4515 (ins GPR:$addr, GPR:$src1, GPR:$src2, i32imm:$ordering),
4519 let usesCustomInserter = 1 in {
4520 def COPY_STRUCT_BYVAL_I32 : PseudoInst<
4521 (outs), (ins GPR:$dst, GPR:$src, i32imm:$size, i32imm:$alignment),
4523 [(ARMcopystructbyval GPR:$dst, GPR:$src, imm:$size, imm:$alignment)]>;
4526 def ldrex_1 : PatFrag<(ops node:$ptr), (int_arm_ldrex node:$ptr), [{
4527 return cast<MemIntrinsicSDNode>(N)->getMemoryVT() == MVT::i8;
4530 def ldrex_2 : PatFrag<(ops node:$ptr), (int_arm_ldrex node:$ptr), [{
4531 return cast<MemIntrinsicSDNode>(N)->getMemoryVT() == MVT::i16;
4534 def ldrex_4 : PatFrag<(ops node:$ptr), (int_arm_ldrex node:$ptr), [{
4535 return cast<MemIntrinsicSDNode>(N)->getMemoryVT() == MVT::i32;
4538 def strex_1 : PatFrag<(ops node:$val, node:$ptr),
4539 (int_arm_strex node:$val, node:$ptr), [{
4540 return cast<MemIntrinsicSDNode>(N)->getMemoryVT() == MVT::i8;
4543 def strex_2 : PatFrag<(ops node:$val, node:$ptr),
4544 (int_arm_strex node:$val, node:$ptr), [{
4545 return cast<MemIntrinsicSDNode>(N)->getMemoryVT() == MVT::i16;
4548 def strex_4 : PatFrag<(ops node:$val, node:$ptr),
4549 (int_arm_strex node:$val, node:$ptr), [{
4550 return cast<MemIntrinsicSDNode>(N)->getMemoryVT() == MVT::i32;
4553 let mayLoad = 1 in {
4554 def LDREXB : AIldrex<0b10, (outs GPR:$Rt), (ins addr_offset_none:$addr),
4555 NoItinerary, "ldrexb", "\t$Rt, $addr",
4556 [(set GPR:$Rt, (ldrex_1 addr_offset_none:$addr))]>;
4557 def LDREXH : AIldrex<0b11, (outs GPR:$Rt), (ins addr_offset_none:$addr),
4558 NoItinerary, "ldrexh", "\t$Rt, $addr",
4559 [(set GPR:$Rt, (ldrex_2 addr_offset_none:$addr))]>;
4560 def LDREX : AIldrex<0b00, (outs GPR:$Rt), (ins addr_offset_none:$addr),
4561 NoItinerary, "ldrex", "\t$Rt, $addr",
4562 [(set GPR:$Rt, (ldrex_4 addr_offset_none:$addr))]>;
4563 let hasExtraDefRegAllocReq = 1 in
4564 def LDREXD : AIldrex<0b01, (outs GPRPairOp:$Rt),(ins addr_offset_none:$addr),
4565 NoItinerary, "ldrexd", "\t$Rt, $addr", []> {
4566 let DecoderMethod = "DecodeDoubleRegLoad";
4569 def LDAEXB : AIldaex<0b10, (outs GPR:$Rt), (ins addr_offset_none:$addr),
4570 NoItinerary, "ldaexb", "\t$Rt, $addr", []>;
4571 def LDAEXH : AIldaex<0b11, (outs GPR:$Rt), (ins addr_offset_none:$addr),
4572 NoItinerary, "ldaexh", "\t$Rt, $addr", []>;
4573 def LDAEX : AIldaex<0b00, (outs GPR:$Rt), (ins addr_offset_none:$addr),
4574 NoItinerary, "ldaex", "\t$Rt, $addr", []>;
4575 let hasExtraDefRegAllocReq = 1 in
4576 def LDAEXD : AIldaex<0b01, (outs GPRPairOp:$Rt),(ins addr_offset_none:$addr),
4577 NoItinerary, "ldaexd", "\t$Rt, $addr", []> {
4578 let DecoderMethod = "DecodeDoubleRegLoad";
4582 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
4583 def STREXB: AIstrex<0b10, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
4584 NoItinerary, "strexb", "\t$Rd, $Rt, $addr",
4585 [(set GPR:$Rd, (strex_1 GPR:$Rt, addr_offset_none:$addr))]>;
4586 def STREXH: AIstrex<0b11, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
4587 NoItinerary, "strexh", "\t$Rd, $Rt, $addr",
4588 [(set GPR:$Rd, (strex_2 GPR:$Rt, addr_offset_none:$addr))]>;
4589 def STREX : AIstrex<0b00, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
4590 NoItinerary, "strex", "\t$Rd, $Rt, $addr",
4591 [(set GPR:$Rd, (strex_4 GPR:$Rt, addr_offset_none:$addr))]>;
4592 let hasExtraSrcRegAllocReq = 1 in
4593 def STREXD : AIstrex<0b01, (outs GPR:$Rd),
4594 (ins GPRPairOp:$Rt, addr_offset_none:$addr),
4595 NoItinerary, "strexd", "\t$Rd, $Rt, $addr", []> {
4596 let DecoderMethod = "DecodeDoubleRegStore";
4598 def STLEXB: AIstlex<0b10, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
4599 NoItinerary, "stlexb", "\t$Rd, $Rt, $addr",
4601 def STLEXH: AIstlex<0b11, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
4602 NoItinerary, "stlexh", "\t$Rd, $Rt, $addr",
4604 def STLEX : AIstlex<0b00, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
4605 NoItinerary, "stlex", "\t$Rd, $Rt, $addr",
4607 let hasExtraSrcRegAllocReq = 1 in
4608 def STLEXD : AIstlex<0b01, (outs GPR:$Rd),
4609 (ins GPRPairOp:$Rt, addr_offset_none:$addr),
4610 NoItinerary, "stlexd", "\t$Rd, $Rt, $addr", []> {
4611 let DecoderMethod = "DecodeDoubleRegStore";
4615 def CLREX : AXI<(outs), (ins), MiscFrm, NoItinerary, "clrex",
4617 Requires<[IsARM, HasV7]> {
4618 let Inst{31-0} = 0b11110101011111111111000000011111;
4621 def : ARMPat<(and (ldrex_1 addr_offset_none:$addr), 0xff),
4622 (LDREXB addr_offset_none:$addr)>;
4623 def : ARMPat<(and (ldrex_2 addr_offset_none:$addr), 0xffff),
4624 (LDREXH addr_offset_none:$addr)>;
4625 def : ARMPat<(strex_1 (and GPR:$Rt, 0xff), addr_offset_none:$addr),
4626 (STREXB GPR:$Rt, addr_offset_none:$addr)>;
4627 def : ARMPat<(strex_2 (and GPR:$Rt, 0xffff), addr_offset_none:$addr),
4628 (STREXH GPR:$Rt, addr_offset_none:$addr)>;
4630 class acquiring_load<PatFrag base>
4631 : PatFrag<(ops node:$ptr), (base node:$ptr), [{
4632 AtomicOrdering Ordering = cast<AtomicSDNode>(N)->getOrdering();
4633 return Ordering == Acquire || Ordering == SequentiallyConsistent;
4636 def atomic_load_acquire_8 : acquiring_load<atomic_load_8>;
4637 def atomic_load_acquire_16 : acquiring_load<atomic_load_16>;
4638 def atomic_load_acquire_32 : acquiring_load<atomic_load_32>;
4640 class releasing_store<PatFrag base>
4641 : PatFrag<(ops node:$ptr, node:$val), (base node:$ptr, node:$val), [{
4642 AtomicOrdering Ordering = cast<AtomicSDNode>(N)->getOrdering();
4643 return Ordering == Release || Ordering == SequentiallyConsistent;
4646 def atomic_store_release_8 : releasing_store<atomic_store_8>;
4647 def atomic_store_release_16 : releasing_store<atomic_store_16>;
4648 def atomic_store_release_32 : releasing_store<atomic_store_32>;
4650 let AddedComplexity = 8 in {
4651 def : ARMPat<(atomic_load_acquire_8 addr_offset_none:$addr), (LDAB addr_offset_none:$addr)>;
4652 def : ARMPat<(atomic_load_acquire_16 addr_offset_none:$addr), (LDAH addr_offset_none:$addr)>;
4653 def : ARMPat<(atomic_load_acquire_32 addr_offset_none:$addr), (LDA addr_offset_none:$addr)>;
4654 def : ARMPat<(atomic_store_release_8 addr_offset_none:$addr, GPR:$val), (STLB GPR:$val, addr_offset_none:$addr)>;
4655 def : ARMPat<(atomic_store_release_16 addr_offset_none:$addr, GPR:$val), (STLH GPR:$val, addr_offset_none:$addr)>;
4656 def : ARMPat<(atomic_store_release_32 addr_offset_none:$addr, GPR:$val), (STL GPR:$val, addr_offset_none:$addr)>;
4659 // SWP/SWPB are deprecated in V6/V7.
4660 let mayLoad = 1, mayStore = 1 in {
4661 def SWP : AIswp<0, (outs GPRnopc:$Rt),
4662 (ins GPRnopc:$Rt2, addr_offset_none:$addr), "swp", []>,
4664 def SWPB: AIswp<1, (outs GPRnopc:$Rt),
4665 (ins GPRnopc:$Rt2, addr_offset_none:$addr), "swpb", []>,
4669 //===----------------------------------------------------------------------===//
4670 // Coprocessor Instructions.
4673 def CDP : ABI<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
4674 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
4675 NoItinerary, "cdp", "\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
4676 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
4677 imm:$CRm, imm:$opc2)]> {
4685 let Inst{3-0} = CRm;
4687 let Inst{7-5} = opc2;
4688 let Inst{11-8} = cop;
4689 let Inst{15-12} = CRd;
4690 let Inst{19-16} = CRn;
4691 let Inst{23-20} = opc1;
4694 def CDP2 : ABXI<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
4695 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
4696 NoItinerary, "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
4697 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
4698 imm:$CRm, imm:$opc2)]> {
4699 let Inst{31-28} = 0b1111;
4707 let Inst{3-0} = CRm;
4709 let Inst{7-5} = opc2;
4710 let Inst{11-8} = cop;
4711 let Inst{15-12} = CRd;
4712 let Inst{19-16} = CRn;
4713 let Inst{23-20} = opc1;
4716 class ACI<dag oops, dag iops, string opc, string asm,
4717 IndexMode im = IndexModeNone>
4718 : I<oops, iops, AddrModeNone, 4, im, BrFrm, NoItinerary,
4720 let Inst{27-25} = 0b110;
4722 class ACInoP<dag oops, dag iops, string opc, string asm,
4723 IndexMode im = IndexModeNone>
4724 : InoP<oops, iops, AddrModeNone, 4, im, BrFrm, NoItinerary,
4726 let Inst{31-28} = 0b1111;
4727 let Inst{27-25} = 0b110;
4729 multiclass LdStCop<bit load, bit Dbit, string asm> {
4730 def _OFFSET : ACI<(outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
4731 asm, "\t$cop, $CRd, $addr"> {
4735 let Inst{24} = 1; // P = 1
4736 let Inst{23} = addr{8};
4737 let Inst{22} = Dbit;
4738 let Inst{21} = 0; // W = 0
4739 let Inst{20} = load;
4740 let Inst{19-16} = addr{12-9};
4741 let Inst{15-12} = CRd;
4742 let Inst{11-8} = cop;
4743 let Inst{7-0} = addr{7-0};
4744 let DecoderMethod = "DecodeCopMemInstruction";
4746 def _PRE : ACI<(outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5_pre:$addr),
4747 asm, "\t$cop, $CRd, $addr!", IndexModePre> {
4751 let Inst{24} = 1; // P = 1
4752 let Inst{23} = addr{8};
4753 let Inst{22} = Dbit;
4754 let Inst{21} = 1; // W = 1
4755 let Inst{20} = load;
4756 let Inst{19-16} = addr{12-9};
4757 let Inst{15-12} = CRd;
4758 let Inst{11-8} = cop;
4759 let Inst{7-0} = addr{7-0};
4760 let DecoderMethod = "DecodeCopMemInstruction";
4762 def _POST: ACI<(outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
4763 postidx_imm8s4:$offset),
4764 asm, "\t$cop, $CRd, $addr, $offset", IndexModePost> {
4769 let Inst{24} = 0; // P = 0
4770 let Inst{23} = offset{8};
4771 let Inst{22} = Dbit;
4772 let Inst{21} = 1; // W = 1
4773 let Inst{20} = load;
4774 let Inst{19-16} = addr;
4775 let Inst{15-12} = CRd;
4776 let Inst{11-8} = cop;
4777 let Inst{7-0} = offset{7-0};
4778 let DecoderMethod = "DecodeCopMemInstruction";
4780 def _OPTION : ACI<(outs),
4781 (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
4782 coproc_option_imm:$option),
4783 asm, "\t$cop, $CRd, $addr, $option"> {
4788 let Inst{24} = 0; // P = 0
4789 let Inst{23} = 1; // U = 1
4790 let Inst{22} = Dbit;
4791 let Inst{21} = 0; // W = 0
4792 let Inst{20} = load;
4793 let Inst{19-16} = addr;
4794 let Inst{15-12} = CRd;
4795 let Inst{11-8} = cop;
4796 let Inst{7-0} = option;
4797 let DecoderMethod = "DecodeCopMemInstruction";
4800 multiclass LdSt2Cop<bit load, bit Dbit, string asm> {
4801 def _OFFSET : ACInoP<(outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
4802 asm, "\t$cop, $CRd, $addr"> {
4806 let Inst{24} = 1; // P = 1
4807 let Inst{23} = addr{8};
4808 let Inst{22} = Dbit;
4809 let Inst{21} = 0; // W = 0
4810 let Inst{20} = load;
4811 let Inst{19-16} = addr{12-9};
4812 let Inst{15-12} = CRd;
4813 let Inst{11-8} = cop;
4814 let Inst{7-0} = addr{7-0};
4815 let DecoderMethod = "DecodeCopMemInstruction";
4817 def _PRE : ACInoP<(outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5_pre:$addr),
4818 asm, "\t$cop, $CRd, $addr!", IndexModePre> {
4822 let Inst{24} = 1; // P = 1
4823 let Inst{23} = addr{8};
4824 let Inst{22} = Dbit;
4825 let Inst{21} = 1; // W = 1
4826 let Inst{20} = load;
4827 let Inst{19-16} = addr{12-9};
4828 let Inst{15-12} = CRd;
4829 let Inst{11-8} = cop;
4830 let Inst{7-0} = addr{7-0};
4831 let DecoderMethod = "DecodeCopMemInstruction";
4833 def _POST: ACInoP<(outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
4834 postidx_imm8s4:$offset),
4835 asm, "\t$cop, $CRd, $addr, $offset", IndexModePost> {
4840 let Inst{24} = 0; // P = 0
4841 let Inst{23} = offset{8};
4842 let Inst{22} = Dbit;
4843 let Inst{21} = 1; // W = 1
4844 let Inst{20} = load;
4845 let Inst{19-16} = addr;
4846 let Inst{15-12} = CRd;
4847 let Inst{11-8} = cop;
4848 let Inst{7-0} = offset{7-0};
4849 let DecoderMethod = "DecodeCopMemInstruction";
4851 def _OPTION : ACInoP<(outs),
4852 (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
4853 coproc_option_imm:$option),
4854 asm, "\t$cop, $CRd, $addr, $option"> {
4859 let Inst{24} = 0; // P = 0
4860 let Inst{23} = 1; // U = 1
4861 let Inst{22} = Dbit;
4862 let Inst{21} = 0; // W = 0
4863 let Inst{20} = load;
4864 let Inst{19-16} = addr;
4865 let Inst{15-12} = CRd;
4866 let Inst{11-8} = cop;
4867 let Inst{7-0} = option;
4868 let DecoderMethod = "DecodeCopMemInstruction";
4872 defm LDC : LdStCop <1, 0, "ldc">;
4873 defm LDCL : LdStCop <1, 1, "ldcl">;
4874 defm STC : LdStCop <0, 0, "stc">;
4875 defm STCL : LdStCop <0, 1, "stcl">;
4876 defm LDC2 : LdSt2Cop<1, 0, "ldc2">;
4877 defm LDC2L : LdSt2Cop<1, 1, "ldc2l">;
4878 defm STC2 : LdSt2Cop<0, 0, "stc2">;
4879 defm STC2L : LdSt2Cop<0, 1, "stc2l">;
4881 //===----------------------------------------------------------------------===//
4882 // Move between coprocessor and ARM core register.
4885 class MovRCopro<string opc, bit direction, dag oops, dag iops,
4887 : ABI<0b1110, oops, iops, NoItinerary, opc,
4888 "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2", pattern> {
4889 let Inst{20} = direction;
4899 let Inst{15-12} = Rt;
4900 let Inst{11-8} = cop;
4901 let Inst{23-21} = opc1;
4902 let Inst{7-5} = opc2;
4903 let Inst{3-0} = CRm;
4904 let Inst{19-16} = CRn;
4907 def MCR : MovRCopro<"mcr", 0 /* from ARM core register to coprocessor */,
4909 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4910 c_imm:$CRm, imm0_7:$opc2),
4911 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
4912 imm:$CRm, imm:$opc2)]>,
4913 ComplexDeprecationPredicate<"MCR">;
4914 def : ARMInstAlias<"mcr${p} $cop, $opc1, $Rt, $CRn, $CRm",
4915 (MCR p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4916 c_imm:$CRm, 0, pred:$p)>;
4917 def MRC : MovRCopro<"mrc", 1 /* from coprocessor to ARM core register */,
4918 (outs GPRwithAPSR:$Rt),
4919 (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, c_imm:$CRm,
4921 def : ARMInstAlias<"mrc${p} $cop, $opc1, $Rt, $CRn, $CRm",
4922 (MRC GPRwithAPSR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
4923 c_imm:$CRm, 0, pred:$p)>;
4925 def : ARMPat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
4926 (MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
4928 class MovRCopro2<string opc, bit direction, dag oops, dag iops,
4930 : ABXI<0b1110, oops, iops, NoItinerary,
4931 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"), pattern> {
4932 let Inst{31-24} = 0b11111110;
4933 let Inst{20} = direction;
4943 let Inst{15-12} = Rt;
4944 let Inst{11-8} = cop;
4945 let Inst{23-21} = opc1;
4946 let Inst{7-5} = opc2;
4947 let Inst{3-0} = CRm;
4948 let Inst{19-16} = CRn;
4951 def MCR2 : MovRCopro2<"mcr2", 0 /* from ARM core register to coprocessor */,
4953 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4954 c_imm:$CRm, imm0_7:$opc2),
4955 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
4956 imm:$CRm, imm:$opc2)]>;
4957 def : ARMInstAlias<"mcr2$ $cop, $opc1, $Rt, $CRn, $CRm",
4958 (MCR2 p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
4960 def MRC2 : MovRCopro2<"mrc2", 1 /* from coprocessor to ARM core register */,
4961 (outs GPRwithAPSR:$Rt),
4962 (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, c_imm:$CRm,
4964 def : ARMInstAlias<"mrc2$ $cop, $opc1, $Rt, $CRn, $CRm",
4965 (MRC2 GPRwithAPSR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
4968 def : ARMV5TPat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn,
4969 imm:$CRm, imm:$opc2),
4970 (MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
4972 class MovRRCopro<string opc, bit direction, list<dag> pattern = []>
4973 : ABI<0b1100, (outs), (ins p_imm:$cop, imm0_15:$opc1,
4974 GPRnopc:$Rt, GPRnopc:$Rt2, c_imm:$CRm),
4975 NoItinerary, opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm", pattern> {
4976 let Inst{23-21} = 0b010;
4977 let Inst{20} = direction;
4985 let Inst{15-12} = Rt;
4986 let Inst{19-16} = Rt2;
4987 let Inst{11-8} = cop;
4988 let Inst{7-4} = opc1;
4989 let Inst{3-0} = CRm;
4992 def MCRR : MovRRCopro<"mcrr", 0 /* from ARM core register to coprocessor */,
4993 [(int_arm_mcrr imm:$cop, imm:$opc1, GPRnopc:$Rt,
4994 GPRnopc:$Rt2, imm:$CRm)]>;
4995 def MRRC : MovRRCopro<"mrrc", 1 /* from coprocessor to ARM core register */>;
4997 class MovRRCopro2<string opc, bit direction, list<dag> pattern = []>
4998 : ABXI<0b1100, (outs), (ins p_imm:$cop, imm0_15:$opc1,
4999 GPRnopc:$Rt, GPRnopc:$Rt2, c_imm:$CRm), NoItinerary,
5000 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
5001 let Inst{31-28} = 0b1111;
5002 let Inst{23-21} = 0b010;
5003 let Inst{20} = direction;
5011 let Inst{15-12} = Rt;
5012 let Inst{19-16} = Rt2;
5013 let Inst{11-8} = cop;
5014 let Inst{7-4} = opc1;
5015 let Inst{3-0} = CRm;
5017 let DecoderMethod = "DecodeMRRC2";
5020 def MCRR2 : MovRRCopro2<"mcrr2", 0 /* from ARM core register to coprocessor */,
5021 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPRnopc:$Rt,
5022 GPRnopc:$Rt2, imm:$CRm)]>;
5023 def MRRC2 : MovRRCopro2<"mrrc2", 1 /* from coprocessor to ARM core register */>;
5025 //===----------------------------------------------------------------------===//
5026 // Move between special register and ARM core register
5029 // Move to ARM core register from Special Register
5030 def MRS : ABI<0b0001, (outs GPRnopc:$Rd), (ins), NoItinerary,
5031 "mrs", "\t$Rd, apsr", []> {
5033 let Inst{23-16} = 0b00001111;
5034 let Unpredictable{19-17} = 0b111;
5036 let Inst{15-12} = Rd;
5038 let Inst{11-0} = 0b000000000000;
5039 let Unpredictable{11-0} = 0b110100001111;
5042 def : InstAlias<"mrs${p} $Rd, cpsr", (MRS GPRnopc:$Rd, pred:$p)>,
5045 // The MRSsys instruction is the MRS instruction from the ARM ARM,
5046 // section B9.3.9, with the R bit set to 1.
5047 def MRSsys : ABI<0b0001, (outs GPRnopc:$Rd), (ins), NoItinerary,
5048 "mrs", "\t$Rd, spsr", []> {
5050 let Inst{23-16} = 0b01001111;
5051 let Unpredictable{19-16} = 0b1111;
5053 let Inst{15-12} = Rd;
5055 let Inst{11-0} = 0b000000000000;
5056 let Unpredictable{11-0} = 0b110100001111;
5059 // Move from ARM core register to Special Register
5061 // No need to have both system and application versions, the encodings are the
5062 // same and the assembly parser has no way to distinguish between them. The mask
5063 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
5064 // the mask with the fields to be accessed in the special register.
5065 def MSR : ABI<0b0001, (outs), (ins msr_mask:$mask, GPR:$Rn), NoItinerary,
5066 "msr", "\t$mask, $Rn", []> {
5071 let Inst{22} = mask{4}; // R bit
5072 let Inst{21-20} = 0b10;
5073 let Inst{19-16} = mask{3-0};
5074 let Inst{15-12} = 0b1111;
5075 let Inst{11-4} = 0b00000000;
5079 def MSRi : ABI<0b0011, (outs), (ins msr_mask:$mask, so_imm:$a), NoItinerary,
5080 "msr", "\t$mask, $a", []> {
5085 let Inst{22} = mask{4}; // R bit
5086 let Inst{21-20} = 0b10;
5087 let Inst{19-16} = mask{3-0};
5088 let Inst{15-12} = 0b1111;
5092 //===----------------------------------------------------------------------===//
5096 // __aeabi_read_tp preserves the registers r1-r3.
5097 // This is a pseudo inst so that we can get the encoding right,
5098 // complete with fixup for the aeabi_read_tp function.
5100 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
5101 def TPsoft : PseudoInst<(outs), (ins), IIC_Br,
5102 [(set R0, ARMthread_pointer)]>, Sched<[WriteBr]>;
5105 //===----------------------------------------------------------------------===//
5106 // SJLJ Exception handling intrinsics
5107 // eh_sjlj_setjmp() is an instruction sequence to store the return
5108 // address and save #0 in R0 for the non-longjmp case.
5109 // Since by its nature we may be coming from some other function to get
5110 // here, and we're using the stack frame for the containing function to
5111 // save/restore registers, we can't keep anything live in regs across
5112 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
5113 // when we get here from a longjmp(). We force everything out of registers
5114 // except for our own input by listing the relevant registers in Defs. By
5115 // doing so, we also cause the prologue/epilogue code to actively preserve
5116 // all of the callee-saved resgisters, which is exactly what we want.
5117 // A constant value is passed in $val, and we use the location as a scratch.
5119 // These are pseudo-instructions and are lowered to individual MC-insts, so
5120 // no encoding information is necessary.
5122 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
5123 Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15 ],
5124 hasSideEffects = 1, isBarrier = 1, usesCustomInserter = 1 in {
5125 def Int_eh_sjlj_setjmp : PseudoInst<(outs), (ins GPR:$src, GPR:$val),
5127 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, GPR:$val))]>,
5128 Requires<[IsARM, HasVFP2]>;
5132 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
5133 hasSideEffects = 1, isBarrier = 1, usesCustomInserter = 1 in {
5134 def Int_eh_sjlj_setjmp_nofp : PseudoInst<(outs), (ins GPR:$src, GPR:$val),
5136 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, GPR:$val))]>,
5137 Requires<[IsARM, NoVFP]>;
5140 // FIXME: Non-IOS version(s)
5141 let isBarrier = 1, hasSideEffects = 1, isTerminator = 1,
5142 Defs = [ R7, LR, SP ] in {
5143 def Int_eh_sjlj_longjmp : PseudoInst<(outs), (ins GPR:$src, GPR:$scratch),
5145 [(ARMeh_sjlj_longjmp GPR:$src, GPR:$scratch)]>,
5146 Requires<[IsARM, IsIOS]>;
5149 // eh.sjlj.dispatchsetup pseudo-instruction.
5150 // This pseudo is used for both ARM and Thumb. Any differences are handled when
5151 // the pseudo is expanded (which happens before any passes that need the
5152 // instruction size).
5153 let isBarrier = 1 in
5154 def Int_eh_sjlj_dispatchsetup : PseudoInst<(outs), (ins), NoItinerary, []>;
5157 //===----------------------------------------------------------------------===//
5158 // Non-Instruction Patterns
5161 // ARMv4 indirect branch using (MOVr PC, dst)
5162 let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in
5163 def MOVPCRX : ARMPseudoExpand<(outs), (ins GPR:$dst),
5164 4, IIC_Br, [(brind GPR:$dst)],
5165 (MOVr PC, GPR:$dst, (ops 14, zero_reg), zero_reg)>,
5166 Requires<[IsARM, NoV4T]>, Sched<[WriteBr]>;
5168 // Large immediate handling.
5170 // 32-bit immediate using two piece so_imms or movw + movt.
5171 // This is a single pseudo instruction, the benefit is that it can be remat'd
5172 // as a single unit instead of having to handle reg inputs.
5173 // FIXME: Remove this when we can do generalized remat.
5174 let isReMaterializable = 1, isMoveImm = 1 in
5175 def MOVi32imm : PseudoInst<(outs GPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
5176 [(set GPR:$dst, (arm_i32imm:$src))]>,
5179 // Pseudo instruction that combines movw + movt + add pc (if PIC).
5180 // It also makes it possible to rematerialize the instructions.
5181 // FIXME: Remove this when we can do generalized remat and when machine licm
5182 // can properly the instructions.
5183 let isReMaterializable = 1 in {
5184 def MOV_ga_pcrel : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
5186 [(set GPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
5187 Requires<[IsARM, UseMovt]>;
5189 def MOV_ga_dyn : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
5191 [(set GPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
5192 Requires<[IsARM, UseMovt]>;
5194 let AddedComplexity = 10 in
5195 def MOV_ga_pcrel_ldr : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
5197 [(set GPR:$dst, (load (ARMWrapperPIC tglobaladdr:$addr)))]>,
5198 Requires<[IsARM, UseMovt]>;
5199 } // isReMaterializable
5201 // ConstantPool, GlobalAddress, and JumpTable
5202 def : ARMPat<(ARMWrapper tglobaladdr :$dst), (LEApcrel tglobaladdr :$dst)>,
5203 Requires<[IsARM, DontUseMovt]>;
5204 def : ARMPat<(ARMWrapper tconstpool :$dst), (LEApcrel tconstpool :$dst)>;
5205 def : ARMPat<(ARMWrapper tglobaladdr :$dst), (MOVi32imm tglobaladdr :$dst)>,
5206 Requires<[IsARM, UseMovt]>;
5207 def : ARMPat<(ARMWrapperJT tjumptable:$dst, imm:$id),
5208 (LEApcrelJT tjumptable:$dst, imm:$id)>;
5210 // TODO: add,sub,and, 3-instr forms?
5212 // Tail calls. These patterns also apply to Thumb mode.
5213 def : Pat<(ARMtcret tcGPR:$dst), (TCRETURNri tcGPR:$dst)>;
5214 def : Pat<(ARMtcret (i32 tglobaladdr:$dst)), (TCRETURNdi texternalsym:$dst)>;
5215 def : Pat<(ARMtcret (i32 texternalsym:$dst)), (TCRETURNdi texternalsym:$dst)>;
5218 def : ARMPat<(ARMcall texternalsym:$func), (BL texternalsym:$func)>;
5219 def : ARMPat<(ARMcall_nolink texternalsym:$func),
5220 (BMOVPCB_CALL texternalsym:$func)>;
5222 // zextload i1 -> zextload i8
5223 def : ARMPat<(zextloadi1 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
5224 def : ARMPat<(zextloadi1 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
5226 // extload -> zextload
5227 def : ARMPat<(extloadi1 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
5228 def : ARMPat<(extloadi1 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
5229 def : ARMPat<(extloadi8 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
5230 def : ARMPat<(extloadi8 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
5232 def : ARMPat<(extloadi16 addrmode3:$addr), (LDRH addrmode3:$addr)>;
5234 def : ARMPat<(extloadi8 addrmodepc:$addr), (PICLDRB addrmodepc:$addr)>;
5235 def : ARMPat<(extloadi16 addrmodepc:$addr), (PICLDRH addrmodepc:$addr)>;
5238 def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
5239 (sra (shl GPR:$b, (i32 16)), (i32 16))),
5240 (SMULBB GPR:$a, GPR:$b)>;
5241 def : ARMV5TEPat<(mul sext_16_node:$a, sext_16_node:$b),
5242 (SMULBB GPR:$a, GPR:$b)>;
5243 def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
5244 (sra GPR:$b, (i32 16))),
5245 (SMULBT GPR:$a, GPR:$b)>;
5246 def : ARMV5TEPat<(mul sext_16_node:$a, (sra GPR:$b, (i32 16))),
5247 (SMULBT GPR:$a, GPR:$b)>;
5248 def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)),
5249 (sra (shl GPR:$b, (i32 16)), (i32 16))),
5250 (SMULTB GPR:$a, GPR:$b)>;
5251 def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)), sext_16_node:$b),
5252 (SMULTB GPR:$a, GPR:$b)>;
5253 def : ARMV5TEPat<(sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
5255 (SMULWB GPR:$a, GPR:$b)>;
5256 def : ARMV5TEPat<(sra (mul GPR:$a, sext_16_node:$b), (i32 16)),
5257 (SMULWB GPR:$a, GPR:$b)>;
5259 def : ARMV5MOPat<(add GPR:$acc,
5260 (mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
5261 (sra (shl GPR:$b, (i32 16)), (i32 16)))),
5262 (SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
5263 def : ARMV5MOPat<(add GPR:$acc,
5264 (mul sext_16_node:$a, sext_16_node:$b)),
5265 (SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
5266 def : ARMV5MOPat<(add GPR:$acc,
5267 (mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
5268 (sra GPR:$b, (i32 16)))),
5269 (SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
5270 def : ARMV5MOPat<(add GPR:$acc,
5271 (mul sext_16_node:$a, (sra GPR:$b, (i32 16)))),
5272 (SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
5273 def : ARMV5MOPat<(add GPR:$acc,
5274 (mul (sra GPR:$a, (i32 16)),
5275 (sra (shl GPR:$b, (i32 16)), (i32 16)))),
5276 (SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
5277 def : ARMV5MOPat<(add GPR:$acc,
5278 (mul (sra GPR:$a, (i32 16)), sext_16_node:$b)),
5279 (SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
5280 def : ARMV5MOPat<(add GPR:$acc,
5281 (sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
5283 (SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
5284 def : ARMV5MOPat<(add GPR:$acc,
5285 (sra (mul GPR:$a, sext_16_node:$b), (i32 16))),
5286 (SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
5289 // Pre-v7 uses MCR for synchronization barriers.
5290 def : ARMPat<(ARMMemBarrierMCR GPR:$zero), (MCR 15, 0, GPR:$zero, 7, 10, 5)>,
5291 Requires<[IsARM, HasV6]>;
5293 // SXT/UXT with no rotate
5294 let AddedComplexity = 16 in {
5295 def : ARMV6Pat<(and GPR:$Src, 0x000000FF), (UXTB GPR:$Src, 0)>;
5296 def : ARMV6Pat<(and GPR:$Src, 0x0000FFFF), (UXTH GPR:$Src, 0)>;
5297 def : ARMV6Pat<(and GPR:$Src, 0x00FF00FF), (UXTB16 GPR:$Src, 0)>;
5298 def : ARMV6Pat<(add GPR:$Rn, (and GPR:$Rm, 0x00FF)),
5299 (UXTAB GPR:$Rn, GPR:$Rm, 0)>;
5300 def : ARMV6Pat<(add GPR:$Rn, (and GPR:$Rm, 0xFFFF)),
5301 (UXTAH GPR:$Rn, GPR:$Rm, 0)>;
5304 def : ARMV6Pat<(sext_inreg GPR:$Src, i8), (SXTB GPR:$Src, 0)>;
5305 def : ARMV6Pat<(sext_inreg GPR:$Src, i16), (SXTH GPR:$Src, 0)>;
5307 def : ARMV6Pat<(add GPR:$Rn, (sext_inreg GPRnopc:$Rm, i8)),
5308 (SXTAB GPR:$Rn, GPRnopc:$Rm, 0)>;
5309 def : ARMV6Pat<(add GPR:$Rn, (sext_inreg GPRnopc:$Rm, i16)),
5310 (SXTAH GPR:$Rn, GPRnopc:$Rm, 0)>;
5312 // Atomic load/store patterns
5313 def : ARMPat<(atomic_load_8 ldst_so_reg:$src),
5314 (LDRBrs ldst_so_reg:$src)>;
5315 def : ARMPat<(atomic_load_8 addrmode_imm12:$src),
5316 (LDRBi12 addrmode_imm12:$src)>;
5317 def : ARMPat<(atomic_load_16 addrmode3:$src),
5318 (LDRH addrmode3:$src)>;
5319 def : ARMPat<(atomic_load_32 ldst_so_reg:$src),
5320 (LDRrs ldst_so_reg:$src)>;
5321 def : ARMPat<(atomic_load_32 addrmode_imm12:$src),
5322 (LDRi12 addrmode_imm12:$src)>;
5323 def : ARMPat<(atomic_store_8 ldst_so_reg:$ptr, GPR:$val),
5324 (STRBrs GPR:$val, ldst_so_reg:$ptr)>;
5325 def : ARMPat<(atomic_store_8 addrmode_imm12:$ptr, GPR:$val),
5326 (STRBi12 GPR:$val, addrmode_imm12:$ptr)>;
5327 def : ARMPat<(atomic_store_16 addrmode3:$ptr, GPR:$val),
5328 (STRH GPR:$val, addrmode3:$ptr)>;
5329 def : ARMPat<(atomic_store_32 ldst_so_reg:$ptr, GPR:$val),
5330 (STRrs GPR:$val, ldst_so_reg:$ptr)>;
5331 def : ARMPat<(atomic_store_32 addrmode_imm12:$ptr, GPR:$val),
5332 (STRi12 GPR:$val, addrmode_imm12:$ptr)>;
5335 //===----------------------------------------------------------------------===//
5339 include "ARMInstrThumb.td"
5341 //===----------------------------------------------------------------------===//
5345 include "ARMInstrThumb2.td"
5347 //===----------------------------------------------------------------------===//
5348 // Floating Point Support
5351 include "ARMInstrVFP.td"
5353 //===----------------------------------------------------------------------===//
5354 // Advanced SIMD (NEON) Support
5357 include "ARMInstrNEON.td"
5359 //===----------------------------------------------------------------------===//
5360 // Assembler aliases
5364 def : InstAlias<"dmb", (DMB 0xf)>, Requires<[IsARM, HasDB]>;
5365 def : InstAlias<"dsb", (DSB 0xf)>, Requires<[IsARM, HasDB]>;
5366 def : InstAlias<"isb", (ISB 0xf)>, Requires<[IsARM, HasDB]>;
5368 // System instructions
5369 def : MnemonicAlias<"swi", "svc">;
5371 // Load / Store Multiple
5372 def : MnemonicAlias<"ldmfd", "ldm">;
5373 def : MnemonicAlias<"ldmia", "ldm">;
5374 def : MnemonicAlias<"ldmea", "ldmdb">;
5375 def : MnemonicAlias<"stmfd", "stmdb">;
5376 def : MnemonicAlias<"stmia", "stm">;
5377 def : MnemonicAlias<"stmea", "stm">;
5379 // PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT when the
5380 // shift amount is zero (i.e., unspecified).
5381 def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
5382 (PKHBT GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, 0, pred:$p)>,
5383 Requires<[IsARM, HasV6]>;
5384 def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
5385 (PKHBT GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, 0, pred:$p)>,
5386 Requires<[IsARM, HasV6]>;
5388 // PUSH/POP aliases for STM/LDM
5389 def : ARMInstAlias<"push${p} $regs", (STMDB_UPD SP, pred:$p, reglist:$regs)>;
5390 def : ARMInstAlias<"pop${p} $regs", (LDMIA_UPD SP, pred:$p, reglist:$regs)>;
5392 // SSAT/USAT optional shift operand.
5393 def : ARMInstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
5394 (SSAT GPRnopc:$Rd, imm1_32:$sat_imm, GPRnopc:$Rn, 0, pred:$p)>;
5395 def : ARMInstAlias<"usat${p} $Rd, $sat_imm, $Rn",
5396 (USAT GPRnopc:$Rd, imm0_31:$sat_imm, GPRnopc:$Rn, 0, pred:$p)>;
5399 // Extend instruction optional rotate operand.
5400 def : ARMInstAlias<"sxtab${p} $Rd, $Rn, $Rm",
5401 (SXTAB GPRnopc:$Rd, GPR:$Rn, GPRnopc:$Rm, 0, pred:$p)>;
5402 def : ARMInstAlias<"sxtah${p} $Rd, $Rn, $Rm",
5403 (SXTAH GPRnopc:$Rd, GPR:$Rn, GPRnopc:$Rm, 0, pred:$p)>;
5404 def : ARMInstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
5405 (SXTAB16 GPRnopc:$Rd, GPR:$Rn, GPRnopc:$Rm, 0, pred:$p)>;
5406 def : ARMInstAlias<"sxtb${p} $Rd, $Rm",
5407 (SXTB GPRnopc:$Rd, GPRnopc:$Rm, 0, pred:$p)>;
5408 def : ARMInstAlias<"sxtb16${p} $Rd, $Rm",
5409 (SXTB16 GPRnopc:$Rd, GPRnopc:$Rm, 0, pred:$p)>;
5410 def : ARMInstAlias<"sxth${p} $Rd, $Rm",
5411 (SXTH GPRnopc:$Rd, GPRnopc:$Rm, 0, pred:$p)>;
5413 def : ARMInstAlias<"uxtab${p} $Rd, $Rn, $Rm",
5414 (UXTAB GPRnopc:$Rd, GPR:$Rn, GPRnopc:$Rm, 0, pred:$p)>;
5415 def : ARMInstAlias<"uxtah${p} $Rd, $Rn, $Rm",
5416 (UXTAH GPRnopc:$Rd, GPR:$Rn, GPRnopc:$Rm, 0, pred:$p)>;
5417 def : ARMInstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
5418 (UXTAB16 GPRnopc:$Rd, GPR:$Rn, GPRnopc:$Rm, 0, pred:$p)>;
5419 def : ARMInstAlias<"uxtb${p} $Rd, $Rm",
5420 (UXTB GPRnopc:$Rd, GPRnopc:$Rm, 0, pred:$p)>;
5421 def : ARMInstAlias<"uxtb16${p} $Rd, $Rm",
5422 (UXTB16 GPRnopc:$Rd, GPRnopc:$Rm, 0, pred:$p)>;
5423 def : ARMInstAlias<"uxth${p} $Rd, $Rm",
5424 (UXTH GPRnopc:$Rd, GPRnopc:$Rm, 0, pred:$p)>;
5428 def : MnemonicAlias<"rfefa", "rfeda">;
5429 def : MnemonicAlias<"rfeea", "rfedb">;
5430 def : MnemonicAlias<"rfefd", "rfeia">;
5431 def : MnemonicAlias<"rfeed", "rfeib">;
5432 def : MnemonicAlias<"rfe", "rfeia">;
5435 def : MnemonicAlias<"srsfa", "srsib">;
5436 def : MnemonicAlias<"srsea", "srsia">;
5437 def : MnemonicAlias<"srsfd", "srsdb">;
5438 def : MnemonicAlias<"srsed", "srsda">;
5439 def : MnemonicAlias<"srs", "srsia">;
5442 def : MnemonicAlias<"qsubaddx", "qsax">;
5444 def : MnemonicAlias<"saddsubx", "sasx">;
5445 // SHASX == SHADDSUBX
5446 def : MnemonicAlias<"shaddsubx", "shasx">;
5447 // SHSAX == SHSUBADDX
5448 def : MnemonicAlias<"shsubaddx", "shsax">;
5450 def : MnemonicAlias<"ssubaddx", "ssax">;
5452 def : MnemonicAlias<"uaddsubx", "uasx">;
5453 // UHASX == UHADDSUBX
5454 def : MnemonicAlias<"uhaddsubx", "uhasx">;
5455 // UHSAX == UHSUBADDX
5456 def : MnemonicAlias<"uhsubaddx", "uhsax">;
5457 // UQASX == UQADDSUBX
5458 def : MnemonicAlias<"uqaddsubx", "uqasx">;
5459 // UQSAX == UQSUBADDX
5460 def : MnemonicAlias<"uqsubaddx", "uqsax">;
5462 def : MnemonicAlias<"usubaddx", "usax">;
5464 // "mov Rd, so_imm_not" can be handled via "mvn" in assembly, just like
5466 def : ARMInstAlias<"mov${s}${p} $Rd, $imm",
5467 (MVNi rGPR:$Rd, so_imm_not:$imm, pred:$p, cc_out:$s)>;
5468 def : ARMInstAlias<"mvn${s}${p} $Rd, $imm",
5469 (MOVi rGPR:$Rd, so_imm_not:$imm, pred:$p, cc_out:$s)>;
5470 // Same for AND <--> BIC
5471 def : ARMInstAlias<"bic${s}${p} $Rd, $Rn, $imm",
5472 (ANDri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
5473 pred:$p, cc_out:$s)>;
5474 def : ARMInstAlias<"bic${s}${p} $Rdn, $imm",
5475 (ANDri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
5476 pred:$p, cc_out:$s)>;
5477 def : ARMInstAlias<"and${s}${p} $Rd, $Rn, $imm",
5478 (BICri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
5479 pred:$p, cc_out:$s)>;
5480 def : ARMInstAlias<"and${s}${p} $Rdn, $imm",
5481 (BICri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
5482 pred:$p, cc_out:$s)>;
5484 // Likewise, "add Rd, so_imm_neg" -> sub
5485 def : ARMInstAlias<"add${s}${p} $Rd, $Rn, $imm",
5486 (SUBri GPR:$Rd, GPR:$Rn, so_imm_neg:$imm, pred:$p, cc_out:$s)>;
5487 def : ARMInstAlias<"add${s}${p} $Rd, $imm",
5488 (SUBri GPR:$Rd, GPR:$Rd, so_imm_neg:$imm, pred:$p, cc_out:$s)>;
5489 // Same for CMP <--> CMN via so_imm_neg
5490 def : ARMInstAlias<"cmp${p} $Rd, $imm",
5491 (CMNri rGPR:$Rd, so_imm_neg:$imm, pred:$p)>;
5492 def : ARMInstAlias<"cmn${p} $Rd, $imm",
5493 (CMPri rGPR:$Rd, so_imm_neg:$imm, pred:$p)>;
5495 // The shifter forms of the MOV instruction are aliased to the ASR, LSL,
5496 // LSR, ROR, and RRX instructions.
5497 // FIXME: We need C++ parser hooks to map the alias to the MOV
5498 // encoding. It seems we should be able to do that sort of thing
5499 // in tblgen, but it could get ugly.
5500 let TwoOperandAliasConstraint = "$Rm = $Rd" in {
5501 def ASRi : ARMAsmPseudo<"asr${s}${p} $Rd, $Rm, $imm",
5502 (ins GPR:$Rd, GPR:$Rm, imm0_32:$imm, pred:$p,
5504 def LSRi : ARMAsmPseudo<"lsr${s}${p} $Rd, $Rm, $imm",
5505 (ins GPR:$Rd, GPR:$Rm, imm0_32:$imm, pred:$p,
5507 def LSLi : ARMAsmPseudo<"lsl${s}${p} $Rd, $Rm, $imm",
5508 (ins GPR:$Rd, GPR:$Rm, imm0_31:$imm, pred:$p,
5510 def RORi : ARMAsmPseudo<"ror${s}${p} $Rd, $Rm, $imm",
5511 (ins GPR:$Rd, GPR:$Rm, imm0_31:$imm, pred:$p,
5514 def RRXi : ARMAsmPseudo<"rrx${s}${p} $Rd, $Rm",
5515 (ins GPR:$Rd, GPR:$Rm, pred:$p, cc_out:$s)>;
5516 let TwoOperandAliasConstraint = "$Rn = $Rd" in {
5517 def ASRr : ARMAsmPseudo<"asr${s}${p} $Rd, $Rn, $Rm",
5518 (ins GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p,
5520 def LSRr : ARMAsmPseudo<"lsr${s}${p} $Rd, $Rn, $Rm",
5521 (ins GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p,
5523 def LSLr : ARMAsmPseudo<"lsl${s}${p} $Rd, $Rn, $Rm",
5524 (ins GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p,
5526 def RORr : ARMAsmPseudo<"ror${s}${p} $Rd, $Rn, $Rm",
5527 (ins GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p,
5531 // "neg" is and alias for "rsb rd, rn, #0"
5532 def : ARMInstAlias<"neg${s}${p} $Rd, $Rm",
5533 (RSBri GPR:$Rd, GPR:$Rm, 0, pred:$p, cc_out:$s)>;
5535 // Pre-v6, 'mov r0, r0' was used as a NOP encoding.
5536 def : InstAlias<"nop${p}", (MOVr R0, R0, pred:$p, zero_reg)>,
5537 Requires<[IsARM, NoV6]>;
5539 // UMULL/SMULL are available on all arches, but the instruction definitions
5540 // need difference constraints pre-v6. Use these aliases for the assembly
5541 // parsing on pre-v6.
5542 def : InstAlias<"smull${s}${p} $RdLo, $RdHi, $Rn, $Rm",
5543 (SMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
5544 Requires<[IsARM, NoV6]>;
5545 def : InstAlias<"umull${s}${p} $RdLo, $RdHi, $Rn, $Rm",
5546 (UMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
5547 Requires<[IsARM, NoV6]>;
5549 // 'it' blocks in ARM mode just validate the predicates. The IT itself
5551 def ITasm : ARMAsmPseudo<"it$mask $cc", (ins it_pred:$cc, it_mask:$mask)>,
5552 ComplexDeprecationPredicate<"IT">;