1 //===-- ARMAsmParser.cpp - Parse ARM assembly to MCInst instructions ------===//
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 #include "ARMFPUName.h"
11 #include "ARMFeatures.h"
12 #include "MCTargetDesc/ARMAddressingModes.h"
13 #include "MCTargetDesc/ARMArchName.h"
14 #include "MCTargetDesc/ARMBaseInfo.h"
15 #include "MCTargetDesc/ARMMCExpr.h"
16 #include "llvm/ADT/STLExtras.h"
17 #include "llvm/ADT/SmallVector.h"
18 #include "llvm/ADT/StringExtras.h"
19 #include "llvm/ADT/StringSwitch.h"
20 #include "llvm/ADT/Twine.h"
21 #include "llvm/MC/MCAsmInfo.h"
22 #include "llvm/MC/MCAssembler.h"
23 #include "llvm/MC/MCContext.h"
24 #include "llvm/MC/MCDisassembler.h"
25 #include "llvm/MC/MCELF.h"
26 #include "llvm/MC/MCELFStreamer.h"
27 #include "llvm/MC/MCELFSymbolFlags.h"
28 #include "llvm/MC/MCExpr.h"
29 #include "llvm/MC/MCInst.h"
30 #include "llvm/MC/MCInstrDesc.h"
31 #include "llvm/MC/MCInstrInfo.h"
32 #include "llvm/MC/MCObjectFileInfo.h"
33 #include "llvm/MC/MCParser/MCAsmLexer.h"
34 #include "llvm/MC/MCParser/MCAsmParser.h"
35 #include "llvm/MC/MCParser/MCParsedAsmOperand.h"
36 #include "llvm/MC/MCRegisterInfo.h"
37 #include "llvm/MC/MCSection.h"
38 #include "llvm/MC/MCStreamer.h"
39 #include "llvm/MC/MCSubtargetInfo.h"
40 #include "llvm/MC/MCSymbol.h"
41 #include "llvm/MC/MCTargetAsmParser.h"
42 #include "llvm/Support/ARMBuildAttributes.h"
43 #include "llvm/Support/ARMEHABI.h"
44 #include "llvm/Support/COFF.h"
45 #include "llvm/Support/Debug.h"
46 #include "llvm/Support/ELF.h"
47 #include "llvm/Support/MathExtras.h"
48 #include "llvm/Support/SourceMgr.h"
49 #include "llvm/Support/TargetRegistry.h"
50 #include "llvm/Support/raw_ostream.h"
58 enum VectorLaneTy { NoLanes, AllLanes, IndexedLane };
63 typedef SmallVector<SMLoc, 4> Locs;
68 Locs PersonalityIndexLocs;
73 UnwindContext(MCAsmParser &P) : Parser(P), FPReg(ARM::SP) {}
75 bool hasFnStart() const { return !FnStartLocs.empty(); }
76 bool cantUnwind() const { return !CantUnwindLocs.empty(); }
77 bool hasHandlerData() const { return !HandlerDataLocs.empty(); }
78 bool hasPersonality() const {
79 return !(PersonalityLocs.empty() && PersonalityIndexLocs.empty());
82 void recordFnStart(SMLoc L) { FnStartLocs.push_back(L); }
83 void recordCantUnwind(SMLoc L) { CantUnwindLocs.push_back(L); }
84 void recordPersonality(SMLoc L) { PersonalityLocs.push_back(L); }
85 void recordHandlerData(SMLoc L) { HandlerDataLocs.push_back(L); }
86 void recordPersonalityIndex(SMLoc L) { PersonalityIndexLocs.push_back(L); }
88 void saveFPReg(int Reg) { FPReg = Reg; }
89 int getFPReg() const { return FPReg; }
91 void emitFnStartLocNotes() const {
92 for (Locs::const_iterator FI = FnStartLocs.begin(), FE = FnStartLocs.end();
94 Parser.Note(*FI, ".fnstart was specified here");
96 void emitCantUnwindLocNotes() const {
97 for (Locs::const_iterator UI = CantUnwindLocs.begin(),
98 UE = CantUnwindLocs.end(); UI != UE; ++UI)
99 Parser.Note(*UI, ".cantunwind was specified here");
101 void emitHandlerDataLocNotes() const {
102 for (Locs::const_iterator HI = HandlerDataLocs.begin(),
103 HE = HandlerDataLocs.end(); HI != HE; ++HI)
104 Parser.Note(*HI, ".handlerdata was specified here");
106 void emitPersonalityLocNotes() const {
107 for (Locs::const_iterator PI = PersonalityLocs.begin(),
108 PE = PersonalityLocs.end(),
109 PII = PersonalityIndexLocs.begin(),
110 PIE = PersonalityIndexLocs.end();
111 PI != PE || PII != PIE;) {
112 if (PI != PE && (PII == PIE || PI->getPointer() < PII->getPointer()))
113 Parser.Note(*PI++, ".personality was specified here");
114 else if (PII != PIE && (PI == PE || PII->getPointer() < PI->getPointer()))
115 Parser.Note(*PII++, ".personalityindex was specified here");
117 llvm_unreachable(".personality and .personalityindex cannot be "
118 "at the same location");
123 FnStartLocs = Locs();
124 CantUnwindLocs = Locs();
125 PersonalityLocs = Locs();
126 HandlerDataLocs = Locs();
127 PersonalityIndexLocs = Locs();
132 class ARMAsmParser : public MCTargetAsmParser {
133 MCSubtargetInfo &STI;
135 const MCInstrInfo &MII;
136 const MCRegisterInfo *MRI;
139 ARMTargetStreamer &getTargetStreamer() {
140 MCTargetStreamer &TS = *getParser().getStreamer().getTargetStreamer();
141 return static_cast<ARMTargetStreamer &>(TS);
144 // Map of register aliases registers via the .req directive.
145 StringMap<unsigned> RegisterReqs;
147 bool NextSymbolIsThumb;
150 ARMCC::CondCodes Cond; // Condition for IT block.
151 unsigned Mask:4; // Condition mask for instructions.
152 // Starting at first 1 (from lsb).
153 // '1' condition as indicated in IT.
154 // '0' inverse of condition (else).
155 // Count of instructions in IT block is
156 // 4 - trailingzeroes(mask)
158 bool FirstCond; // Explicit flag for when we're parsing the
159 // First instruction in the IT block. It's
160 // implied in the mask, so needs special
163 unsigned CurPosition; // Current position in parsing of IT
164 // block. In range [0,3]. Initialized
165 // according to count of instructions in block.
166 // ~0U if no active IT block.
168 bool inITBlock() { return ITState.CurPosition != ~0U;}
169 void forwardITPosition() {
170 if (!inITBlock()) return;
171 // Move to the next instruction in the IT block, if there is one. If not,
172 // mark the block as done.
173 unsigned TZ = countTrailingZeros(ITState.Mask);
174 if (++ITState.CurPosition == 5 - TZ)
175 ITState.CurPosition = ~0U; // Done with the IT block after this.
179 MCAsmParser &getParser() const { return Parser; }
180 MCAsmLexer &getLexer() const { return Parser.getLexer(); }
182 void Note(SMLoc L, const Twine &Msg, ArrayRef<SMRange> Ranges = None) {
183 return Parser.Note(L, Msg, Ranges);
185 bool Warning(SMLoc L, const Twine &Msg,
186 ArrayRef<SMRange> Ranges = None) {
187 return Parser.Warning(L, Msg, Ranges);
189 bool Error(SMLoc L, const Twine &Msg,
190 ArrayRef<SMRange> Ranges = None) {
191 return Parser.Error(L, Msg, Ranges);
194 int tryParseRegister();
195 bool tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &);
196 int tryParseShiftRegister(SmallVectorImpl<MCParsedAsmOperand*> &);
197 bool parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &);
198 bool parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &);
199 bool parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &, StringRef Mnemonic);
200 bool parsePrefix(ARMMCExpr::VariantKind &RefKind);
201 bool parseMemRegOffsetShift(ARM_AM::ShiftOpc &ShiftType,
202 unsigned &ShiftAmount);
203 bool parseLiteralValues(unsigned Size, SMLoc L);
204 bool parseDirectiveThumb(SMLoc L);
205 bool parseDirectiveARM(SMLoc L);
206 bool parseDirectiveThumbFunc(SMLoc L);
207 bool parseDirectiveCode(SMLoc L);
208 bool parseDirectiveSyntax(SMLoc L);
209 bool parseDirectiveReq(StringRef Name, SMLoc L);
210 bool parseDirectiveUnreq(SMLoc L);
211 bool parseDirectiveArch(SMLoc L);
212 bool parseDirectiveEabiAttr(SMLoc L);
213 bool parseDirectiveCPU(SMLoc L);
214 bool parseDirectiveFPU(SMLoc L);
215 bool parseDirectiveFnStart(SMLoc L);
216 bool parseDirectiveFnEnd(SMLoc L);
217 bool parseDirectiveCantUnwind(SMLoc L);
218 bool parseDirectivePersonality(SMLoc L);
219 bool parseDirectiveHandlerData(SMLoc L);
220 bool parseDirectiveSetFP(SMLoc L);
221 bool parseDirectivePad(SMLoc L);
222 bool parseDirectiveRegSave(SMLoc L, bool IsVector);
223 bool parseDirectiveInst(SMLoc L, char Suffix = '\0');
224 bool parseDirectiveLtorg(SMLoc L);
225 bool parseDirectiveEven(SMLoc L);
226 bool parseDirectivePersonalityIndex(SMLoc L);
227 bool parseDirectiveUnwindRaw(SMLoc L);
228 bool parseDirectiveTLSDescSeq(SMLoc L);
229 bool parseDirectiveMovSP(SMLoc L);
230 bool parseDirectiveObjectArch(SMLoc L);
231 bool parseDirectiveArchExtension(SMLoc L);
232 bool parseDirectiveAlign(SMLoc L);
233 bool parseDirectiveThumbSet(SMLoc L);
235 StringRef splitMnemonic(StringRef Mnemonic, unsigned &PredicationCode,
236 bool &CarrySetting, unsigned &ProcessorIMod,
238 void getMnemonicAcceptInfo(StringRef Mnemonic, StringRef FullInst,
239 bool &CanAcceptCarrySet,
240 bool &CanAcceptPredicationCode);
242 bool isThumb() const {
243 // FIXME: Can tablegen auto-generate this?
244 return (STI.getFeatureBits() & ARM::ModeThumb) != 0;
246 bool isThumbOne() const {
247 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2) == 0;
249 bool isThumbTwo() const {
250 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2);
252 bool hasThumb() const {
253 return STI.getFeatureBits() & ARM::HasV4TOps;
255 bool hasV6Ops() const {
256 return STI.getFeatureBits() & ARM::HasV6Ops;
258 bool hasV6MOps() const {
259 return STI.getFeatureBits() & ARM::HasV6MOps;
261 bool hasV7Ops() const {
262 return STI.getFeatureBits() & ARM::HasV7Ops;
264 bool hasV8Ops() const {
265 return STI.getFeatureBits() & ARM::HasV8Ops;
267 bool hasARM() const {
268 return !(STI.getFeatureBits() & ARM::FeatureNoARM);
272 unsigned FB = ComputeAvailableFeatures(STI.ToggleFeature(ARM::ModeThumb));
273 setAvailableFeatures(FB);
275 bool isMClass() const {
276 return STI.getFeatureBits() & ARM::FeatureMClass;
279 /// @name Auto-generated Match Functions
282 #define GET_ASSEMBLER_HEADER
283 #include "ARMGenAsmMatcher.inc"
287 OperandMatchResultTy parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*>&);
288 OperandMatchResultTy parseCoprocNumOperand(
289 SmallVectorImpl<MCParsedAsmOperand*>&);
290 OperandMatchResultTy parseCoprocRegOperand(
291 SmallVectorImpl<MCParsedAsmOperand*>&);
292 OperandMatchResultTy parseCoprocOptionOperand(
293 SmallVectorImpl<MCParsedAsmOperand*>&);
294 OperandMatchResultTy parseMemBarrierOptOperand(
295 SmallVectorImpl<MCParsedAsmOperand*>&);
296 OperandMatchResultTy parseInstSyncBarrierOptOperand(
297 SmallVectorImpl<MCParsedAsmOperand*>&);
298 OperandMatchResultTy parseProcIFlagsOperand(
299 SmallVectorImpl<MCParsedAsmOperand*>&);
300 OperandMatchResultTy parseMSRMaskOperand(
301 SmallVectorImpl<MCParsedAsmOperand*>&);
302 OperandMatchResultTy parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &O,
303 StringRef Op, int Low, int High);
304 OperandMatchResultTy parsePKHLSLImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
305 return parsePKHImm(O, "lsl", 0, 31);
307 OperandMatchResultTy parsePKHASRImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
308 return parsePKHImm(O, "asr", 1, 32);
310 OperandMatchResultTy parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*>&);
311 OperandMatchResultTy parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*>&);
312 OperandMatchResultTy parseRotImm(SmallVectorImpl<MCParsedAsmOperand*>&);
313 OperandMatchResultTy parseBitfield(SmallVectorImpl<MCParsedAsmOperand*>&);
314 OperandMatchResultTy parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*>&);
315 OperandMatchResultTy parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*>&);
316 OperandMatchResultTy parseFPImm(SmallVectorImpl<MCParsedAsmOperand*>&);
317 OperandMatchResultTy parseVectorList(SmallVectorImpl<MCParsedAsmOperand*>&);
318 OperandMatchResultTy parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index,
321 // Asm Match Converter Methods
322 void cvtThumbMultiply(MCInst &Inst,
323 const SmallVectorImpl<MCParsedAsmOperand*> &);
324 void cvtThumbBranches(MCInst &Inst,
325 const SmallVectorImpl<MCParsedAsmOperand*> &);
327 bool validateInstruction(MCInst &Inst,
328 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
329 bool processInstruction(MCInst &Inst,
330 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
331 bool shouldOmitCCOutOperand(StringRef Mnemonic,
332 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
333 bool shouldOmitPredicateOperand(StringRef Mnemonic,
334 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
336 enum ARMMatchResultTy {
337 Match_RequiresITBlock = FIRST_TARGET_MATCH_RESULT_TY,
338 Match_RequiresNotITBlock,
340 Match_RequiresThumb2,
341 #define GET_OPERAND_DIAGNOSTIC_TYPES
342 #include "ARMGenAsmMatcher.inc"
346 ARMAsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser,
347 const MCInstrInfo &MII,
348 const MCTargetOptions &Options)
349 : MCTargetAsmParser(), STI(_STI), Parser(_Parser), MII(MII), UC(_Parser) {
350 MCAsmParserExtension::Initialize(_Parser);
352 // Cache the MCRegisterInfo.
353 MRI = getContext().getRegisterInfo();
355 // Initialize the set of available features.
356 setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
358 // Not in an ITBlock to start with.
359 ITState.CurPosition = ~0U;
361 NextSymbolIsThumb = false;
364 // Implementation of the MCTargetAsmParser interface:
365 bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc) override;
367 ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
369 SmallVectorImpl<MCParsedAsmOperand*> &Operands) override;
370 bool ParseDirective(AsmToken DirectiveID) override;
372 unsigned validateTargetOperandClass(MCParsedAsmOperand *Op,
373 unsigned Kind) override;
374 unsigned checkTargetMatchPredicate(MCInst &Inst) override;
376 bool MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
377 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
378 MCStreamer &Out, unsigned &ErrorInfo,
379 bool MatchingInlineAsm) override;
380 void onLabelParsed(MCSymbol *Symbol) override;
382 } // end anonymous namespace
386 /// ARMOperand - Instances of this class represent a parsed ARM machine
388 class ARMOperand : public MCParsedAsmOperand {
398 k_InstSyncBarrierOpt,
409 k_VectorListAllLanes,
415 k_BitfieldDescriptor,
419 SMLoc StartLoc, EndLoc, AlignmentLoc;
420 SmallVector<unsigned, 8> Registers;
423 ARMCC::CondCodes Val;
430 struct CoprocOptionOp {
443 ARM_ISB::InstSyncBOpt Val;
447 ARM_PROC::IFlags Val;
463 // A vector register list is a sequential list of 1 to 4 registers.
464 struct VectorListOp {
471 struct VectorIndexOp {
479 /// Combined record for all forms of ARM address expressions.
482 // Offset is in OffsetReg or OffsetImm. If both are zero, no offset
484 const MCConstantExpr *OffsetImm; // Offset immediate value
485 unsigned OffsetRegNum; // Offset register num, when OffsetImm == NULL
486 ARM_AM::ShiftOpc ShiftType; // Shift type for OffsetReg
487 unsigned ShiftImm; // shift for OffsetReg.
488 unsigned Alignment; // 0 = no alignment specified
489 // n = alignment in bytes (2, 4, 8, 16, or 32)
490 unsigned isNegative : 1; // Negated OffsetReg? (~'U' bit)
493 struct PostIdxRegOp {
496 ARM_AM::ShiftOpc ShiftTy;
500 struct ShifterImmOp {
505 struct RegShiftedRegOp {
506 ARM_AM::ShiftOpc ShiftTy;
512 struct RegShiftedImmOp {
513 ARM_AM::ShiftOpc ShiftTy;
530 struct CoprocOptionOp CoprocOption;
531 struct MBOptOp MBOpt;
532 struct ISBOptOp ISBOpt;
533 struct ITMaskOp ITMask;
534 struct IFlagsOp IFlags;
535 struct MMaskOp MMask;
538 struct VectorListOp VectorList;
539 struct VectorIndexOp VectorIndex;
541 struct MemoryOp Memory;
542 struct PostIdxRegOp PostIdxReg;
543 struct ShifterImmOp ShifterImm;
544 struct RegShiftedRegOp RegShiftedReg;
545 struct RegShiftedImmOp RegShiftedImm;
546 struct RotImmOp RotImm;
547 struct BitfieldOp Bitfield;
550 ARMOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
552 ARMOperand(const ARMOperand &o) : MCParsedAsmOperand() {
554 StartLoc = o.StartLoc;
571 case k_DPRRegisterList:
572 case k_SPRRegisterList:
573 Registers = o.Registers;
576 case k_VectorListAllLanes:
577 case k_VectorListIndexed:
578 VectorList = o.VectorList;
585 CoprocOption = o.CoprocOption;
590 case k_MemBarrierOpt:
593 case k_InstSyncBarrierOpt:
598 case k_PostIndexRegister:
599 PostIdxReg = o.PostIdxReg;
607 case k_ShifterImmediate:
608 ShifterImm = o.ShifterImm;
610 case k_ShiftedRegister:
611 RegShiftedReg = o.RegShiftedReg;
613 case k_ShiftedImmediate:
614 RegShiftedImm = o.RegShiftedImm;
616 case k_RotateImmediate:
619 case k_BitfieldDescriptor:
620 Bitfield = o.Bitfield;
623 VectorIndex = o.VectorIndex;
628 /// getStartLoc - Get the location of the first token of this operand.
629 SMLoc getStartLoc() const override { return StartLoc; }
630 /// getEndLoc - Get the location of the last token of this operand.
631 SMLoc getEndLoc() const override { return EndLoc; }
632 /// getLocRange - Get the range between the first and last token of this
634 SMRange getLocRange() const { return SMRange(StartLoc, EndLoc); }
636 /// getAlignmentLoc - Get the location of the Alignment token of this operand.
637 SMLoc getAlignmentLoc() const {
638 assert(Kind == k_Memory && "Invalid access!");
642 ARMCC::CondCodes getCondCode() const {
643 assert(Kind == k_CondCode && "Invalid access!");
647 unsigned getCoproc() const {
648 assert((Kind == k_CoprocNum || Kind == k_CoprocReg) && "Invalid access!");
652 StringRef getToken() const {
653 assert(Kind == k_Token && "Invalid access!");
654 return StringRef(Tok.Data, Tok.Length);
657 unsigned getReg() const override {
658 assert((Kind == k_Register || Kind == k_CCOut) && "Invalid access!");
662 const SmallVectorImpl<unsigned> &getRegList() const {
663 assert((Kind == k_RegisterList || Kind == k_DPRRegisterList ||
664 Kind == k_SPRRegisterList) && "Invalid access!");
668 const MCExpr *getImm() const {
669 assert(isImm() && "Invalid access!");
673 unsigned getVectorIndex() const {
674 assert(Kind == k_VectorIndex && "Invalid access!");
675 return VectorIndex.Val;
678 ARM_MB::MemBOpt getMemBarrierOpt() const {
679 assert(Kind == k_MemBarrierOpt && "Invalid access!");
683 ARM_ISB::InstSyncBOpt getInstSyncBarrierOpt() const {
684 assert(Kind == k_InstSyncBarrierOpt && "Invalid access!");
688 ARM_PROC::IFlags getProcIFlags() const {
689 assert(Kind == k_ProcIFlags && "Invalid access!");
693 unsigned getMSRMask() const {
694 assert(Kind == k_MSRMask && "Invalid access!");
698 bool isCoprocNum() const { return Kind == k_CoprocNum; }
699 bool isCoprocReg() const { return Kind == k_CoprocReg; }
700 bool isCoprocOption() const { return Kind == k_CoprocOption; }
701 bool isCondCode() const { return Kind == k_CondCode; }
702 bool isCCOut() const { return Kind == k_CCOut; }
703 bool isITMask() const { return Kind == k_ITCondMask; }
704 bool isITCondCode() const { return Kind == k_CondCode; }
705 bool isImm() const override { return Kind == k_Immediate; }
706 // checks whether this operand is an unsigned offset which fits is a field
707 // of specified width and scaled by a specific number of bits
708 template<unsigned width, unsigned scale>
709 bool isUnsignedOffset() const {
710 if (!isImm()) return false;
711 if (isa<MCSymbolRefExpr>(Imm.Val)) return true;
712 if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Imm.Val)) {
713 int64_t Val = CE->getValue();
714 int64_t Align = 1LL << scale;
715 int64_t Max = Align * ((1LL << width) - 1);
716 return ((Val % Align) == 0) && (Val >= 0) && (Val <= Max);
720 // checks whether this operand is an signed offset which fits is a field
721 // of specified width and scaled by a specific number of bits
722 template<unsigned width, unsigned scale>
723 bool isSignedOffset() const {
724 if (!isImm()) return false;
725 if (isa<MCSymbolRefExpr>(Imm.Val)) return true;
726 if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Imm.Val)) {
727 int64_t Val = CE->getValue();
728 int64_t Align = 1LL << scale;
729 int64_t Max = Align * ((1LL << (width-1)) - 1);
730 int64_t Min = -Align * (1LL << (width-1));
731 return ((Val % Align) == 0) && (Val >= Min) && (Val <= Max);
736 // checks whether this operand is a memory operand computed as an offset
737 // applied to PC. the offset may have 8 bits of magnitude and is represented
738 // with two bits of shift. textually it may be either [pc, #imm], #imm or
739 // relocable expression...
740 bool isThumbMemPC() const {
743 if (isa<MCSymbolRefExpr>(Imm.Val)) return true;
744 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Imm.Val);
745 if (!CE) return false;
746 Val = CE->getValue();
749 if(!Memory.OffsetImm || Memory.OffsetRegNum) return false;
750 if(Memory.BaseRegNum != ARM::PC) return false;
751 Val = Memory.OffsetImm->getValue();
754 return ((Val % 4) == 0) && (Val >= 0) && (Val <= 1020);
756 bool isFPImm() const {
757 if (!isImm()) return false;
758 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
759 if (!CE) return false;
760 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
763 bool isFBits16() const {
764 if (!isImm()) return false;
765 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
766 if (!CE) return false;
767 int64_t Value = CE->getValue();
768 return Value >= 0 && Value <= 16;
770 bool isFBits32() const {
771 if (!isImm()) return false;
772 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
773 if (!CE) return false;
774 int64_t Value = CE->getValue();
775 return Value >= 1 && Value <= 32;
777 bool isImm8s4() const {
778 if (!isImm()) return false;
779 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
780 if (!CE) return false;
781 int64_t Value = CE->getValue();
782 return ((Value & 3) == 0) && Value >= -1020 && Value <= 1020;
784 bool isImm0_1020s4() const {
785 if (!isImm()) return false;
786 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
787 if (!CE) return false;
788 int64_t Value = CE->getValue();
789 return ((Value & 3) == 0) && Value >= 0 && Value <= 1020;
791 bool isImm0_508s4() const {
792 if (!isImm()) return false;
793 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
794 if (!CE) return false;
795 int64_t Value = CE->getValue();
796 return ((Value & 3) == 0) && Value >= 0 && Value <= 508;
798 bool isImm0_508s4Neg() const {
799 if (!isImm()) return false;
800 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
801 if (!CE) return false;
802 int64_t Value = -CE->getValue();
803 // explicitly exclude zero. we want that to use the normal 0_508 version.
804 return ((Value & 3) == 0) && Value > 0 && Value <= 508;
806 bool isImm0_239() const {
807 if (!isImm()) return false;
808 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
809 if (!CE) return false;
810 int64_t Value = CE->getValue();
811 return Value >= 0 && Value < 240;
813 bool isImm0_255() const {
814 if (!isImm()) return false;
815 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
816 if (!CE) return false;
817 int64_t Value = CE->getValue();
818 return Value >= 0 && Value < 256;
820 bool isImm0_4095() const {
821 if (!isImm()) return false;
822 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
823 if (!CE) return false;
824 int64_t Value = CE->getValue();
825 return Value >= 0 && Value < 4096;
827 bool isImm0_4095Neg() const {
828 if (!isImm()) return false;
829 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
830 if (!CE) return false;
831 int64_t Value = -CE->getValue();
832 return Value > 0 && Value < 4096;
834 bool isImm0_1() const {
835 if (!isImm()) return false;
836 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
837 if (!CE) return false;
838 int64_t Value = CE->getValue();
839 return Value >= 0 && Value < 2;
841 bool isImm0_3() const {
842 if (!isImm()) return false;
843 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
844 if (!CE) return false;
845 int64_t Value = CE->getValue();
846 return Value >= 0 && Value < 4;
848 bool isImm0_7() const {
849 if (!isImm()) return false;
850 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
851 if (!CE) return false;
852 int64_t Value = CE->getValue();
853 return Value >= 0 && Value < 8;
855 bool isImm0_15() const {
856 if (!isImm()) return false;
857 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
858 if (!CE) return false;
859 int64_t Value = CE->getValue();
860 return Value >= 0 && Value < 16;
862 bool isImm0_31() const {
863 if (!isImm()) return false;
864 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
865 if (!CE) return false;
866 int64_t Value = CE->getValue();
867 return Value >= 0 && Value < 32;
869 bool isImm0_63() const {
870 if (!isImm()) return false;
871 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
872 if (!CE) return false;
873 int64_t Value = CE->getValue();
874 return Value >= 0 && Value < 64;
876 bool isImm8() const {
877 if (!isImm()) return false;
878 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
879 if (!CE) return false;
880 int64_t Value = CE->getValue();
883 bool isImm16() const {
884 if (!isImm()) return false;
885 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
886 if (!CE) return false;
887 int64_t Value = CE->getValue();
890 bool isImm32() const {
891 if (!isImm()) return false;
892 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
893 if (!CE) return false;
894 int64_t Value = CE->getValue();
897 bool isShrImm8() const {
898 if (!isImm()) return false;
899 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
900 if (!CE) return false;
901 int64_t Value = CE->getValue();
902 return Value > 0 && Value <= 8;
904 bool isShrImm16() const {
905 if (!isImm()) return false;
906 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
907 if (!CE) return false;
908 int64_t Value = CE->getValue();
909 return Value > 0 && Value <= 16;
911 bool isShrImm32() const {
912 if (!isImm()) return false;
913 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
914 if (!CE) return false;
915 int64_t Value = CE->getValue();
916 return Value > 0 && Value <= 32;
918 bool isShrImm64() const {
919 if (!isImm()) return false;
920 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
921 if (!CE) return false;
922 int64_t Value = CE->getValue();
923 return Value > 0 && Value <= 64;
925 bool isImm1_7() const {
926 if (!isImm()) return false;
927 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
928 if (!CE) return false;
929 int64_t Value = CE->getValue();
930 return Value > 0 && Value < 8;
932 bool isImm1_15() const {
933 if (!isImm()) return false;
934 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
935 if (!CE) return false;
936 int64_t Value = CE->getValue();
937 return Value > 0 && Value < 16;
939 bool isImm1_31() const {
940 if (!isImm()) return false;
941 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
942 if (!CE) return false;
943 int64_t Value = CE->getValue();
944 return Value > 0 && Value < 32;
946 bool isImm1_16() const {
947 if (!isImm()) return false;
948 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
949 if (!CE) return false;
950 int64_t Value = CE->getValue();
951 return Value > 0 && Value < 17;
953 bool isImm1_32() const {
954 if (!isImm()) return false;
955 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
956 if (!CE) return false;
957 int64_t Value = CE->getValue();
958 return Value > 0 && Value < 33;
960 bool isImm0_32() const {
961 if (!isImm()) return false;
962 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
963 if (!CE) return false;
964 int64_t Value = CE->getValue();
965 return Value >= 0 && Value < 33;
967 bool isImm0_65535() const {
968 if (!isImm()) return false;
969 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
970 if (!CE) return false;
971 int64_t Value = CE->getValue();
972 return Value >= 0 && Value < 65536;
974 bool isImm256_65535Expr() const {
975 if (!isImm()) return false;
976 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
977 // If it's not a constant expression, it'll generate a fixup and be
979 if (!CE) return true;
980 int64_t Value = CE->getValue();
981 return Value >= 256 && Value < 65536;
983 bool isImm0_65535Expr() const {
984 if (!isImm()) return false;
985 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
986 // If it's not a constant expression, it'll generate a fixup and be
988 if (!CE) return true;
989 int64_t Value = CE->getValue();
990 return Value >= 0 && Value < 65536;
992 bool isImm24bit() const {
993 if (!isImm()) return false;
994 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
995 if (!CE) return false;
996 int64_t Value = CE->getValue();
997 return Value >= 0 && Value <= 0xffffff;
999 bool isImmThumbSR() const {
1000 if (!isImm()) return false;
1001 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1002 if (!CE) return false;
1003 int64_t Value = CE->getValue();
1004 return Value > 0 && Value < 33;
1006 bool isPKHLSLImm() const {
1007 if (!isImm()) return false;
1008 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1009 if (!CE) return false;
1010 int64_t Value = CE->getValue();
1011 return Value >= 0 && Value < 32;
1013 bool isPKHASRImm() const {
1014 if (!isImm()) return false;
1015 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1016 if (!CE) return false;
1017 int64_t Value = CE->getValue();
1018 return Value > 0 && Value <= 32;
1020 bool isAdrLabel() const {
1021 // If we have an immediate that's not a constant, treat it as a label
1022 // reference needing a fixup. If it is a constant, but it can't fit
1023 // into shift immediate encoding, we reject it.
1024 if (isImm() && !isa<MCConstantExpr>(getImm())) return true;
1025 else return (isARMSOImm() || isARMSOImmNeg());
1027 bool isARMSOImm() const {
1028 if (!isImm()) return false;
1029 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1030 if (!CE) return false;
1031 int64_t Value = CE->getValue();
1032 return ARM_AM::getSOImmVal(Value) != -1;
1034 bool isARMSOImmNot() const {
1035 if (!isImm()) return false;
1036 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1037 if (!CE) return false;
1038 int64_t Value = CE->getValue();
1039 return ARM_AM::getSOImmVal(~Value) != -1;
1041 bool isARMSOImmNeg() const {
1042 if (!isImm()) return false;
1043 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1044 if (!CE) return false;
1045 int64_t Value = CE->getValue();
1046 // Only use this when not representable as a plain so_imm.
1047 return ARM_AM::getSOImmVal(Value) == -1 &&
1048 ARM_AM::getSOImmVal(-Value) != -1;
1050 bool isT2SOImm() const {
1051 if (!isImm()) return false;
1052 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1053 if (!CE) return false;
1054 int64_t Value = CE->getValue();
1055 return ARM_AM::getT2SOImmVal(Value) != -1;
1057 bool isT2SOImmNot() const {
1058 if (!isImm()) return false;
1059 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1060 if (!CE) return false;
1061 int64_t Value = CE->getValue();
1062 return ARM_AM::getT2SOImmVal(Value) == -1 &&
1063 ARM_AM::getT2SOImmVal(~Value) != -1;
1065 bool isT2SOImmNeg() const {
1066 if (!isImm()) return false;
1067 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1068 if (!CE) return false;
1069 int64_t Value = CE->getValue();
1070 // Only use this when not representable as a plain so_imm.
1071 return ARM_AM::getT2SOImmVal(Value) == -1 &&
1072 ARM_AM::getT2SOImmVal(-Value) != -1;
1074 bool isSetEndImm() const {
1075 if (!isImm()) return false;
1076 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1077 if (!CE) return false;
1078 int64_t Value = CE->getValue();
1079 return Value == 1 || Value == 0;
1081 bool isReg() const override { return Kind == k_Register; }
1082 bool isRegList() const { return Kind == k_RegisterList; }
1083 bool isDPRRegList() const { return Kind == k_DPRRegisterList; }
1084 bool isSPRRegList() const { return Kind == k_SPRRegisterList; }
1085 bool isToken() const override { return Kind == k_Token; }
1086 bool isMemBarrierOpt() const { return Kind == k_MemBarrierOpt; }
1087 bool isInstSyncBarrierOpt() const { return Kind == k_InstSyncBarrierOpt; }
1088 bool isMem() const override { return Kind == k_Memory; }
1089 bool isShifterImm() const { return Kind == k_ShifterImmediate; }
1090 bool isRegShiftedReg() const { return Kind == k_ShiftedRegister; }
1091 bool isRegShiftedImm() const { return Kind == k_ShiftedImmediate; }
1092 bool isRotImm() const { return Kind == k_RotateImmediate; }
1093 bool isBitfield() const { return Kind == k_BitfieldDescriptor; }
1094 bool isPostIdxRegShifted() const { return Kind == k_PostIndexRegister; }
1095 bool isPostIdxReg() const {
1096 return Kind == k_PostIndexRegister && PostIdxReg.ShiftTy ==ARM_AM::no_shift;
1098 bool isMemNoOffset(bool alignOK = false, unsigned Alignment = 0) const {
1101 // No offset of any kind.
1102 return Memory.OffsetRegNum == 0 && Memory.OffsetImm == 0 &&
1103 (alignOK || Memory.Alignment == Alignment);
1105 bool isMemPCRelImm12() const {
1106 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1108 // Base register must be PC.
1109 if (Memory.BaseRegNum != ARM::PC)
1111 // Immediate offset in range [-4095, 4095].
1112 if (!Memory.OffsetImm) return true;
1113 int64_t Val = Memory.OffsetImm->getValue();
1114 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
1116 bool isAlignedMemory() const {
1117 return isMemNoOffset(true);
1119 bool isAlignedMemoryNone() const {
1120 return isMemNoOffset(false, 0);
1122 bool isDupAlignedMemoryNone() const {
1123 return isMemNoOffset(false, 0);
1125 bool isAlignedMemory16() const {
1126 if (isMemNoOffset(false, 2)) // alignment in bytes for 16-bits is 2.
1128 return isMemNoOffset(false, 0);
1130 bool isDupAlignedMemory16() const {
1131 if (isMemNoOffset(false, 2)) // alignment in bytes for 16-bits is 2.
1133 return isMemNoOffset(false, 0);
1135 bool isAlignedMemory32() const {
1136 if (isMemNoOffset(false, 4)) // alignment in bytes for 32-bits is 4.
1138 return isMemNoOffset(false, 0);
1140 bool isDupAlignedMemory32() const {
1141 if (isMemNoOffset(false, 4)) // alignment in bytes for 32-bits is 4.
1143 return isMemNoOffset(false, 0);
1145 bool isAlignedMemory64() const {
1146 if (isMemNoOffset(false, 8)) // alignment in bytes for 64-bits is 8.
1148 return isMemNoOffset(false, 0);
1150 bool isDupAlignedMemory64() const {
1151 if (isMemNoOffset(false, 8)) // alignment in bytes for 64-bits is 8.
1153 return isMemNoOffset(false, 0);
1155 bool isAlignedMemory64or128() const {
1156 if (isMemNoOffset(false, 8)) // alignment in bytes for 64-bits is 8.
1158 if (isMemNoOffset(false, 16)) // alignment in bytes for 128-bits is 16.
1160 return isMemNoOffset(false, 0);
1162 bool isDupAlignedMemory64or128() const {
1163 if (isMemNoOffset(false, 8)) // alignment in bytes for 64-bits is 8.
1165 if (isMemNoOffset(false, 16)) // alignment in bytes for 128-bits is 16.
1167 return isMemNoOffset(false, 0);
1169 bool isAlignedMemory64or128or256() const {
1170 if (isMemNoOffset(false, 8)) // alignment in bytes for 64-bits is 8.
1172 if (isMemNoOffset(false, 16)) // alignment in bytes for 128-bits is 16.
1174 if (isMemNoOffset(false, 32)) // alignment in bytes for 256-bits is 32.
1176 return isMemNoOffset(false, 0);
1178 bool isAddrMode2() const {
1179 if (!isMem() || Memory.Alignment != 0) return false;
1180 // Check for register offset.
1181 if (Memory.OffsetRegNum) return true;
1182 // Immediate offset in range [-4095, 4095].
1183 if (!Memory.OffsetImm) return true;
1184 int64_t Val = Memory.OffsetImm->getValue();
1185 return Val > -4096 && Val < 4096;
1187 bool isAM2OffsetImm() const {
1188 if (!isImm()) return false;
1189 // Immediate offset in range [-4095, 4095].
1190 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1191 if (!CE) return false;
1192 int64_t Val = CE->getValue();
1193 return (Val == INT32_MIN) || (Val > -4096 && Val < 4096);
1195 bool isAddrMode3() const {
1196 // If we have an immediate that's not a constant, treat it as a label
1197 // reference needing a fixup. If it is a constant, it's something else
1198 // and we reject it.
1199 if (isImm() && !isa<MCConstantExpr>(getImm()))
1201 if (!isMem() || Memory.Alignment != 0) return false;
1202 // No shifts are legal for AM3.
1203 if (Memory.ShiftType != ARM_AM::no_shift) return false;
1204 // Check for register offset.
1205 if (Memory.OffsetRegNum) return true;
1206 // Immediate offset in range [-255, 255].
1207 if (!Memory.OffsetImm) return true;
1208 int64_t Val = Memory.OffsetImm->getValue();
1209 // The #-0 offset is encoded as INT32_MIN, and we have to check
1211 return (Val > -256 && Val < 256) || Val == INT32_MIN;
1213 bool isAM3Offset() const {
1214 if (Kind != k_Immediate && Kind != k_PostIndexRegister)
1216 if (Kind == k_PostIndexRegister)
1217 return PostIdxReg.ShiftTy == ARM_AM::no_shift;
1218 // Immediate offset in range [-255, 255].
1219 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1220 if (!CE) return false;
1221 int64_t Val = CE->getValue();
1222 // Special case, #-0 is INT32_MIN.
1223 return (Val > -256 && Val < 256) || Val == INT32_MIN;
1225 bool isAddrMode5() const {
1226 // If we have an immediate that's not a constant, treat it as a label
1227 // reference needing a fixup. If it is a constant, it's something else
1228 // and we reject it.
1229 if (isImm() && !isa<MCConstantExpr>(getImm()))
1231 if (!isMem() || Memory.Alignment != 0) return false;
1232 // Check for register offset.
1233 if (Memory.OffsetRegNum) return false;
1234 // Immediate offset in range [-1020, 1020] and a multiple of 4.
1235 if (!Memory.OffsetImm) return true;
1236 int64_t Val = Memory.OffsetImm->getValue();
1237 return (Val >= -1020 && Val <= 1020 && ((Val & 3) == 0)) ||
1240 bool isMemTBB() const {
1241 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1242 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
1246 bool isMemTBH() const {
1247 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1248 Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm != 1 ||
1249 Memory.Alignment != 0 )
1253 bool isMemRegOffset() const {
1254 if (!isMem() || !Memory.OffsetRegNum || Memory.Alignment != 0)
1258 bool isT2MemRegOffset() const {
1259 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1260 Memory.Alignment != 0)
1262 // Only lsl #{0, 1, 2, 3} allowed.
1263 if (Memory.ShiftType == ARM_AM::no_shift)
1265 if (Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm > 3)
1269 bool isMemThumbRR() const {
1270 // Thumb reg+reg addressing is simple. Just two registers, a base and
1271 // an offset. No shifts, negations or any other complicating factors.
1272 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1273 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
1275 return isARMLowRegister(Memory.BaseRegNum) &&
1276 (!Memory.OffsetRegNum || isARMLowRegister(Memory.OffsetRegNum));
1278 bool isMemThumbRIs4() const {
1279 if (!isMem() || Memory.OffsetRegNum != 0 ||
1280 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1282 // Immediate offset, multiple of 4 in range [0, 124].
1283 if (!Memory.OffsetImm) return true;
1284 int64_t Val = Memory.OffsetImm->getValue();
1285 return Val >= 0 && Val <= 124 && (Val % 4) == 0;
1287 bool isMemThumbRIs2() const {
1288 if (!isMem() || Memory.OffsetRegNum != 0 ||
1289 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1291 // Immediate offset, multiple of 4 in range [0, 62].
1292 if (!Memory.OffsetImm) return true;
1293 int64_t Val = Memory.OffsetImm->getValue();
1294 return Val >= 0 && Val <= 62 && (Val % 2) == 0;
1296 bool isMemThumbRIs1() const {
1297 if (!isMem() || Memory.OffsetRegNum != 0 ||
1298 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1300 // Immediate offset in range [0, 31].
1301 if (!Memory.OffsetImm) return true;
1302 int64_t Val = Memory.OffsetImm->getValue();
1303 return Val >= 0 && Val <= 31;
1305 bool isMemThumbSPI() const {
1306 if (!isMem() || Memory.OffsetRegNum != 0 ||
1307 Memory.BaseRegNum != ARM::SP || Memory.Alignment != 0)
1309 // Immediate offset, multiple of 4 in range [0, 1020].
1310 if (!Memory.OffsetImm) return true;
1311 int64_t Val = Memory.OffsetImm->getValue();
1312 return Val >= 0 && Val <= 1020 && (Val % 4) == 0;
1314 bool isMemImm8s4Offset() const {
1315 // If we have an immediate that's not a constant, treat it as a label
1316 // reference needing a fixup. If it is a constant, it's something else
1317 // and we reject it.
1318 if (isImm() && !isa<MCConstantExpr>(getImm()))
1320 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1322 // Immediate offset a multiple of 4 in range [-1020, 1020].
1323 if (!Memory.OffsetImm) return true;
1324 int64_t Val = Memory.OffsetImm->getValue();
1325 // Special case, #-0 is INT32_MIN.
1326 return (Val >= -1020 && Val <= 1020 && (Val & 3) == 0) || Val == INT32_MIN;
1328 bool isMemImm0_1020s4Offset() const {
1329 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1331 // Immediate offset a multiple of 4 in range [0, 1020].
1332 if (!Memory.OffsetImm) return true;
1333 int64_t Val = Memory.OffsetImm->getValue();
1334 return Val >= 0 && Val <= 1020 && (Val & 3) == 0;
1336 bool isMemImm8Offset() const {
1337 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1339 // Base reg of PC isn't allowed for these encodings.
1340 if (Memory.BaseRegNum == ARM::PC) return false;
1341 // Immediate offset in range [-255, 255].
1342 if (!Memory.OffsetImm) return true;
1343 int64_t Val = Memory.OffsetImm->getValue();
1344 return (Val == INT32_MIN) || (Val > -256 && Val < 256);
1346 bool isMemPosImm8Offset() const {
1347 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1349 // Immediate offset in range [0, 255].
1350 if (!Memory.OffsetImm) return true;
1351 int64_t Val = Memory.OffsetImm->getValue();
1352 return Val >= 0 && Val < 256;
1354 bool isMemNegImm8Offset() const {
1355 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1357 // Base reg of PC isn't allowed for these encodings.
1358 if (Memory.BaseRegNum == ARM::PC) return false;
1359 // Immediate offset in range [-255, -1].
1360 if (!Memory.OffsetImm) return false;
1361 int64_t Val = Memory.OffsetImm->getValue();
1362 return (Val == INT32_MIN) || (Val > -256 && Val < 0);
1364 bool isMemUImm12Offset() const {
1365 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1367 // Immediate offset in range [0, 4095].
1368 if (!Memory.OffsetImm) return true;
1369 int64_t Val = Memory.OffsetImm->getValue();
1370 return (Val >= 0 && Val < 4096);
1372 bool isMemImm12Offset() const {
1373 // If we have an immediate that's not a constant, treat it as a label
1374 // reference needing a fixup. If it is a constant, it's something else
1375 // and we reject it.
1376 if (isImm() && !isa<MCConstantExpr>(getImm()))
1379 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1381 // Immediate offset in range [-4095, 4095].
1382 if (!Memory.OffsetImm) return true;
1383 int64_t Val = Memory.OffsetImm->getValue();
1384 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
1386 bool isPostIdxImm8() const {
1387 if (!isImm()) return false;
1388 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1389 if (!CE) return false;
1390 int64_t Val = CE->getValue();
1391 return (Val > -256 && Val < 256) || (Val == INT32_MIN);
1393 bool isPostIdxImm8s4() const {
1394 if (!isImm()) return false;
1395 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1396 if (!CE) return false;
1397 int64_t Val = CE->getValue();
1398 return ((Val & 3) == 0 && Val >= -1020 && Val <= 1020) ||
1402 bool isMSRMask() const { return Kind == k_MSRMask; }
1403 bool isProcIFlags() const { return Kind == k_ProcIFlags; }
1406 bool isSingleSpacedVectorList() const {
1407 return Kind == k_VectorList && !VectorList.isDoubleSpaced;
1409 bool isDoubleSpacedVectorList() const {
1410 return Kind == k_VectorList && VectorList.isDoubleSpaced;
1412 bool isVecListOneD() const {
1413 if (!isSingleSpacedVectorList()) return false;
1414 return VectorList.Count == 1;
1417 bool isVecListDPair() const {
1418 if (!isSingleSpacedVectorList()) return false;
1419 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1420 .contains(VectorList.RegNum));
1423 bool isVecListThreeD() const {
1424 if (!isSingleSpacedVectorList()) return false;
1425 return VectorList.Count == 3;
1428 bool isVecListFourD() const {
1429 if (!isSingleSpacedVectorList()) return false;
1430 return VectorList.Count == 4;
1433 bool isVecListDPairSpaced() const {
1434 if (Kind != k_VectorList) return false;
1435 if (isSingleSpacedVectorList()) return false;
1436 return (ARMMCRegisterClasses[ARM::DPairSpcRegClassID]
1437 .contains(VectorList.RegNum));
1440 bool isVecListThreeQ() const {
1441 if (!isDoubleSpacedVectorList()) return false;
1442 return VectorList.Count == 3;
1445 bool isVecListFourQ() const {
1446 if (!isDoubleSpacedVectorList()) return false;
1447 return VectorList.Count == 4;
1450 bool isSingleSpacedVectorAllLanes() const {
1451 return Kind == k_VectorListAllLanes && !VectorList.isDoubleSpaced;
1453 bool isDoubleSpacedVectorAllLanes() const {
1454 return Kind == k_VectorListAllLanes && VectorList.isDoubleSpaced;
1456 bool isVecListOneDAllLanes() const {
1457 if (!isSingleSpacedVectorAllLanes()) return false;
1458 return VectorList.Count == 1;
1461 bool isVecListDPairAllLanes() const {
1462 if (!isSingleSpacedVectorAllLanes()) return false;
1463 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1464 .contains(VectorList.RegNum));
1467 bool isVecListDPairSpacedAllLanes() const {
1468 if (!isDoubleSpacedVectorAllLanes()) return false;
1469 return VectorList.Count == 2;
1472 bool isVecListThreeDAllLanes() const {
1473 if (!isSingleSpacedVectorAllLanes()) return false;
1474 return VectorList.Count == 3;
1477 bool isVecListThreeQAllLanes() const {
1478 if (!isDoubleSpacedVectorAllLanes()) return false;
1479 return VectorList.Count == 3;
1482 bool isVecListFourDAllLanes() const {
1483 if (!isSingleSpacedVectorAllLanes()) return false;
1484 return VectorList.Count == 4;
1487 bool isVecListFourQAllLanes() const {
1488 if (!isDoubleSpacedVectorAllLanes()) return false;
1489 return VectorList.Count == 4;
1492 bool isSingleSpacedVectorIndexed() const {
1493 return Kind == k_VectorListIndexed && !VectorList.isDoubleSpaced;
1495 bool isDoubleSpacedVectorIndexed() const {
1496 return Kind == k_VectorListIndexed && VectorList.isDoubleSpaced;
1498 bool isVecListOneDByteIndexed() const {
1499 if (!isSingleSpacedVectorIndexed()) return false;
1500 return VectorList.Count == 1 && VectorList.LaneIndex <= 7;
1503 bool isVecListOneDHWordIndexed() const {
1504 if (!isSingleSpacedVectorIndexed()) return false;
1505 return VectorList.Count == 1 && VectorList.LaneIndex <= 3;
1508 bool isVecListOneDWordIndexed() const {
1509 if (!isSingleSpacedVectorIndexed()) return false;
1510 return VectorList.Count == 1 && VectorList.LaneIndex <= 1;
1513 bool isVecListTwoDByteIndexed() const {
1514 if (!isSingleSpacedVectorIndexed()) return false;
1515 return VectorList.Count == 2 && VectorList.LaneIndex <= 7;
1518 bool isVecListTwoDHWordIndexed() const {
1519 if (!isSingleSpacedVectorIndexed()) return false;
1520 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1523 bool isVecListTwoQWordIndexed() const {
1524 if (!isDoubleSpacedVectorIndexed()) return false;
1525 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1528 bool isVecListTwoQHWordIndexed() const {
1529 if (!isDoubleSpacedVectorIndexed()) return false;
1530 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1533 bool isVecListTwoDWordIndexed() const {
1534 if (!isSingleSpacedVectorIndexed()) return false;
1535 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1538 bool isVecListThreeDByteIndexed() const {
1539 if (!isSingleSpacedVectorIndexed()) return false;
1540 return VectorList.Count == 3 && VectorList.LaneIndex <= 7;
1543 bool isVecListThreeDHWordIndexed() const {
1544 if (!isSingleSpacedVectorIndexed()) return false;
1545 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1548 bool isVecListThreeQWordIndexed() const {
1549 if (!isDoubleSpacedVectorIndexed()) return false;
1550 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1553 bool isVecListThreeQHWordIndexed() const {
1554 if (!isDoubleSpacedVectorIndexed()) return false;
1555 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1558 bool isVecListThreeDWordIndexed() const {
1559 if (!isSingleSpacedVectorIndexed()) return false;
1560 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1563 bool isVecListFourDByteIndexed() const {
1564 if (!isSingleSpacedVectorIndexed()) return false;
1565 return VectorList.Count == 4 && VectorList.LaneIndex <= 7;
1568 bool isVecListFourDHWordIndexed() const {
1569 if (!isSingleSpacedVectorIndexed()) return false;
1570 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1573 bool isVecListFourQWordIndexed() const {
1574 if (!isDoubleSpacedVectorIndexed()) return false;
1575 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1578 bool isVecListFourQHWordIndexed() const {
1579 if (!isDoubleSpacedVectorIndexed()) return false;
1580 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1583 bool isVecListFourDWordIndexed() const {
1584 if (!isSingleSpacedVectorIndexed()) return false;
1585 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1588 bool isVectorIndex8() const {
1589 if (Kind != k_VectorIndex) return false;
1590 return VectorIndex.Val < 8;
1592 bool isVectorIndex16() const {
1593 if (Kind != k_VectorIndex) return false;
1594 return VectorIndex.Val < 4;
1596 bool isVectorIndex32() const {
1597 if (Kind != k_VectorIndex) return false;
1598 return VectorIndex.Val < 2;
1601 bool isNEONi8splat() const {
1602 if (!isImm()) return false;
1603 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1604 // Must be a constant.
1605 if (!CE) return false;
1606 int64_t Value = CE->getValue();
1607 // i8 value splatted across 8 bytes. The immediate is just the 8 byte
1609 return Value >= 0 && Value < 256;
1612 bool isNEONi16splat() const {
1613 if (isNEONByteReplicate(2))
1614 return false; // Leave that for bytes replication and forbid by default.
1617 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1618 // Must be a constant.
1619 if (!CE) return false;
1620 int64_t Value = CE->getValue();
1621 // i16 value in the range [0,255] or [0x0100, 0xff00]
1622 return (Value >= 0 && Value < 256) || (Value >= 0x0100 && Value <= 0xff00);
1625 bool isNEONi32splat() const {
1626 if (isNEONByteReplicate(4))
1627 return false; // Leave that for bytes replication and forbid by default.
1630 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1631 // Must be a constant.
1632 if (!CE) return false;
1633 int64_t Value = CE->getValue();
1634 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X.
1635 return (Value >= 0 && Value < 256) ||
1636 (Value >= 0x0100 && Value <= 0xff00) ||
1637 (Value >= 0x010000 && Value <= 0xff0000) ||
1638 (Value >= 0x01000000 && Value <= 0xff000000);
1641 bool isNEONByteReplicate(unsigned NumBytes) const {
1644 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1645 // Must be a constant.
1648 int64_t Value = CE->getValue();
1650 return false; // Don't bother with zero.
1652 unsigned char B = Value & 0xff;
1653 for (unsigned i = 1; i < NumBytes; ++i) {
1655 if ((Value & 0xff) != B)
1660 bool isNEONi16ByteReplicate() const { return isNEONByteReplicate(2); }
1661 bool isNEONi32ByteReplicate() const { return isNEONByteReplicate(4); }
1662 bool isNEONi32vmov() const {
1663 if (isNEONByteReplicate(4))
1664 return false; // Let it to be classified as byte-replicate case.
1667 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1668 // Must be a constant.
1671 int64_t Value = CE->getValue();
1672 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1673 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1674 return (Value >= 0 && Value < 256) ||
1675 (Value >= 0x0100 && Value <= 0xff00) ||
1676 (Value >= 0x010000 && Value <= 0xff0000) ||
1677 (Value >= 0x01000000 && Value <= 0xff000000) ||
1678 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1679 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1681 bool isNEONi32vmovNeg() const {
1682 if (!isImm()) return false;
1683 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1684 // Must be a constant.
1685 if (!CE) return false;
1686 int64_t Value = ~CE->getValue();
1687 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1688 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1689 return (Value >= 0 && Value < 256) ||
1690 (Value >= 0x0100 && Value <= 0xff00) ||
1691 (Value >= 0x010000 && Value <= 0xff0000) ||
1692 (Value >= 0x01000000 && Value <= 0xff000000) ||
1693 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1694 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1697 bool isNEONi64splat() const {
1698 if (!isImm()) return false;
1699 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1700 // Must be a constant.
1701 if (!CE) return false;
1702 uint64_t Value = CE->getValue();
1703 // i64 value with each byte being either 0 or 0xff.
1704 for (unsigned i = 0; i < 8; ++i)
1705 if ((Value & 0xff) != 0 && (Value & 0xff) != 0xff) return false;
1709 void addExpr(MCInst &Inst, const MCExpr *Expr) const {
1710 // Add as immediates when possible. Null MCExpr = 0.
1712 Inst.addOperand(MCOperand::CreateImm(0));
1713 else if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr))
1714 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1716 Inst.addOperand(MCOperand::CreateExpr(Expr));
1719 void addCondCodeOperands(MCInst &Inst, unsigned N) const {
1720 assert(N == 2 && "Invalid number of operands!");
1721 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1722 unsigned RegNum = getCondCode() == ARMCC::AL ? 0: ARM::CPSR;
1723 Inst.addOperand(MCOperand::CreateReg(RegNum));
1726 void addCoprocNumOperands(MCInst &Inst, unsigned N) const {
1727 assert(N == 1 && "Invalid number of operands!");
1728 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1731 void addCoprocRegOperands(MCInst &Inst, unsigned N) const {
1732 assert(N == 1 && "Invalid number of operands!");
1733 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1736 void addCoprocOptionOperands(MCInst &Inst, unsigned N) const {
1737 assert(N == 1 && "Invalid number of operands!");
1738 Inst.addOperand(MCOperand::CreateImm(CoprocOption.Val));
1741 void addITMaskOperands(MCInst &Inst, unsigned N) const {
1742 assert(N == 1 && "Invalid number of operands!");
1743 Inst.addOperand(MCOperand::CreateImm(ITMask.Mask));
1746 void addITCondCodeOperands(MCInst &Inst, unsigned N) const {
1747 assert(N == 1 && "Invalid number of operands!");
1748 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1751 void addCCOutOperands(MCInst &Inst, unsigned N) const {
1752 assert(N == 1 && "Invalid number of operands!");
1753 Inst.addOperand(MCOperand::CreateReg(getReg()));
1756 void addRegOperands(MCInst &Inst, unsigned N) const {
1757 assert(N == 1 && "Invalid number of operands!");
1758 Inst.addOperand(MCOperand::CreateReg(getReg()));
1761 void addRegShiftedRegOperands(MCInst &Inst, unsigned N) const {
1762 assert(N == 3 && "Invalid number of operands!");
1763 assert(isRegShiftedReg() &&
1764 "addRegShiftedRegOperands() on non-RegShiftedReg!");
1765 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.SrcReg));
1766 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.ShiftReg));
1767 Inst.addOperand(MCOperand::CreateImm(
1768 ARM_AM::getSORegOpc(RegShiftedReg.ShiftTy, RegShiftedReg.ShiftImm)));
1771 void addRegShiftedImmOperands(MCInst &Inst, unsigned N) const {
1772 assert(N == 2 && "Invalid number of operands!");
1773 assert(isRegShiftedImm() &&
1774 "addRegShiftedImmOperands() on non-RegShiftedImm!");
1775 Inst.addOperand(MCOperand::CreateReg(RegShiftedImm.SrcReg));
1776 // Shift of #32 is encoded as 0 where permitted
1777 unsigned Imm = (RegShiftedImm.ShiftImm == 32 ? 0 : RegShiftedImm.ShiftImm);
1778 Inst.addOperand(MCOperand::CreateImm(
1779 ARM_AM::getSORegOpc(RegShiftedImm.ShiftTy, Imm)));
1782 void addShifterImmOperands(MCInst &Inst, unsigned N) const {
1783 assert(N == 1 && "Invalid number of operands!");
1784 Inst.addOperand(MCOperand::CreateImm((ShifterImm.isASR << 5) |
1788 void addRegListOperands(MCInst &Inst, unsigned N) const {
1789 assert(N == 1 && "Invalid number of operands!");
1790 const SmallVectorImpl<unsigned> &RegList = getRegList();
1791 for (SmallVectorImpl<unsigned>::const_iterator
1792 I = RegList.begin(), E = RegList.end(); I != E; ++I)
1793 Inst.addOperand(MCOperand::CreateReg(*I));
1796 void addDPRRegListOperands(MCInst &Inst, unsigned N) const {
1797 addRegListOperands(Inst, N);
1800 void addSPRRegListOperands(MCInst &Inst, unsigned N) const {
1801 addRegListOperands(Inst, N);
1804 void addRotImmOperands(MCInst &Inst, unsigned N) const {
1805 assert(N == 1 && "Invalid number of operands!");
1806 // Encoded as val>>3. The printer handles display as 8, 16, 24.
1807 Inst.addOperand(MCOperand::CreateImm(RotImm.Imm >> 3));
1810 void addBitfieldOperands(MCInst &Inst, unsigned N) const {
1811 assert(N == 1 && "Invalid number of operands!");
1812 // Munge the lsb/width into a bitfield mask.
1813 unsigned lsb = Bitfield.LSB;
1814 unsigned width = Bitfield.Width;
1815 // Make a 32-bit mask w/ the referenced bits clear and all other bits set.
1816 uint32_t Mask = ~(((uint32_t)0xffffffff >> lsb) << (32 - width) >>
1817 (32 - (lsb + width)));
1818 Inst.addOperand(MCOperand::CreateImm(Mask));
1821 void addImmOperands(MCInst &Inst, unsigned N) const {
1822 assert(N == 1 && "Invalid number of operands!");
1823 addExpr(Inst, getImm());
1826 void addFBits16Operands(MCInst &Inst, unsigned N) const {
1827 assert(N == 1 && "Invalid number of operands!");
1828 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1829 Inst.addOperand(MCOperand::CreateImm(16 - CE->getValue()));
1832 void addFBits32Operands(MCInst &Inst, unsigned N) const {
1833 assert(N == 1 && "Invalid number of operands!");
1834 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1835 Inst.addOperand(MCOperand::CreateImm(32 - CE->getValue()));
1838 void addFPImmOperands(MCInst &Inst, unsigned N) const {
1839 assert(N == 1 && "Invalid number of operands!");
1840 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1841 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
1842 Inst.addOperand(MCOperand::CreateImm(Val));
1845 void addImm8s4Operands(MCInst &Inst, unsigned N) const {
1846 assert(N == 1 && "Invalid number of operands!");
1847 // FIXME: We really want to scale the value here, but the LDRD/STRD
1848 // instruction don't encode operands that way yet.
1849 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1850 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1853 void addImm0_1020s4Operands(MCInst &Inst, unsigned N) const {
1854 assert(N == 1 && "Invalid number of operands!");
1855 // The immediate is scaled by four in the encoding and is stored
1856 // in the MCInst as such. Lop off the low two bits here.
1857 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1858 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1861 void addImm0_508s4NegOperands(MCInst &Inst, unsigned N) const {
1862 assert(N == 1 && "Invalid number of operands!");
1863 // The immediate is scaled by four in the encoding and is stored
1864 // in the MCInst as such. Lop off the low two bits here.
1865 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1866 Inst.addOperand(MCOperand::CreateImm(-(CE->getValue() / 4)));
1869 void addImm0_508s4Operands(MCInst &Inst, unsigned N) const {
1870 assert(N == 1 && "Invalid number of operands!");
1871 // The immediate is scaled by four in the encoding and is stored
1872 // in the MCInst as such. Lop off the low two bits here.
1873 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1874 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1877 void addImm1_16Operands(MCInst &Inst, unsigned N) const {
1878 assert(N == 1 && "Invalid number of operands!");
1879 // The constant encodes as the immediate-1, and we store in the instruction
1880 // the bits as encoded, so subtract off one here.
1881 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1882 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1885 void addImm1_32Operands(MCInst &Inst, unsigned N) const {
1886 assert(N == 1 && "Invalid number of operands!");
1887 // The constant encodes as the immediate-1, and we store in the instruction
1888 // the bits as encoded, so subtract off one here.
1889 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1890 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1893 void addImmThumbSROperands(MCInst &Inst, unsigned N) const {
1894 assert(N == 1 && "Invalid number of operands!");
1895 // The constant encodes as the immediate, except for 32, which encodes as
1897 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1898 unsigned Imm = CE->getValue();
1899 Inst.addOperand(MCOperand::CreateImm((Imm == 32 ? 0 : Imm)));
1902 void addPKHASRImmOperands(MCInst &Inst, unsigned N) const {
1903 assert(N == 1 && "Invalid number of operands!");
1904 // An ASR value of 32 encodes as 0, so that's how we want to add it to
1905 // the instruction as well.
1906 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1907 int Val = CE->getValue();
1908 Inst.addOperand(MCOperand::CreateImm(Val == 32 ? 0 : Val));
1911 void addT2SOImmNotOperands(MCInst &Inst, unsigned N) const {
1912 assert(N == 1 && "Invalid number of operands!");
1913 // The operand is actually a t2_so_imm, but we have its bitwise
1914 // negation in the assembly source, so twiddle it here.
1915 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1916 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1919 void addT2SOImmNegOperands(MCInst &Inst, unsigned N) const {
1920 assert(N == 1 && "Invalid number of operands!");
1921 // The operand is actually a t2_so_imm, but we have its
1922 // negation in the assembly source, so twiddle it here.
1923 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1924 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1927 void addImm0_4095NegOperands(MCInst &Inst, unsigned N) const {
1928 assert(N == 1 && "Invalid number of operands!");
1929 // The operand is actually an imm0_4095, but we have its
1930 // negation in the assembly source, so twiddle it here.
1931 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1932 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1935 void addUnsignedOffset_b8s2Operands(MCInst &Inst, unsigned N) const {
1936 if(const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm())) {
1937 Inst.addOperand(MCOperand::CreateImm(CE->getValue() >> 2));
1941 const MCSymbolRefExpr *SR = dyn_cast<MCSymbolRefExpr>(Imm.Val);
1942 assert(SR && "Unknown value type!");
1943 Inst.addOperand(MCOperand::CreateExpr(SR));
1946 void addThumbMemPCOperands(MCInst &Inst, unsigned N) const {
1947 assert(N == 1 && "Invalid number of operands!");
1949 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1951 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1955 const MCSymbolRefExpr *SR = dyn_cast<MCSymbolRefExpr>(Imm.Val);
1956 assert(SR && "Unknown value type!");
1957 Inst.addOperand(MCOperand::CreateExpr(SR));
1961 assert(isMem() && "Unknown value type!");
1962 assert(isa<MCConstantExpr>(Memory.OffsetImm) && "Unknown value type!");
1963 Inst.addOperand(MCOperand::CreateImm(Memory.OffsetImm->getValue()));
1966 void addARMSOImmNotOperands(MCInst &Inst, unsigned N) const {
1967 assert(N == 1 && "Invalid number of operands!");
1968 // The operand is actually a so_imm, but we have its bitwise
1969 // negation in the assembly source, so twiddle it here.
1970 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1971 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1974 void addARMSOImmNegOperands(MCInst &Inst, unsigned N) const {
1975 assert(N == 1 && "Invalid number of operands!");
1976 // The operand is actually a so_imm, but we have its
1977 // negation in the assembly source, so twiddle it here.
1978 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1979 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1982 void addMemBarrierOptOperands(MCInst &Inst, unsigned N) const {
1983 assert(N == 1 && "Invalid number of operands!");
1984 Inst.addOperand(MCOperand::CreateImm(unsigned(getMemBarrierOpt())));
1987 void addInstSyncBarrierOptOperands(MCInst &Inst, unsigned N) const {
1988 assert(N == 1 && "Invalid number of operands!");
1989 Inst.addOperand(MCOperand::CreateImm(unsigned(getInstSyncBarrierOpt())));
1992 void addMemNoOffsetOperands(MCInst &Inst, unsigned N) const {
1993 assert(N == 1 && "Invalid number of operands!");
1994 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1997 void addMemPCRelImm12Operands(MCInst &Inst, unsigned N) const {
1998 assert(N == 1 && "Invalid number of operands!");
1999 int32_t Imm = Memory.OffsetImm->getValue();
2000 Inst.addOperand(MCOperand::CreateImm(Imm));
2003 void addAdrLabelOperands(MCInst &Inst, unsigned N) const {
2004 assert(N == 1 && "Invalid number of operands!");
2005 assert(isImm() && "Not an immediate!");
2007 // If we have an immediate that's not a constant, treat it as a label
2008 // reference needing a fixup.
2009 if (!isa<MCConstantExpr>(getImm())) {
2010 Inst.addOperand(MCOperand::CreateExpr(getImm()));
2014 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2015 int Val = CE->getValue();
2016 Inst.addOperand(MCOperand::CreateImm(Val));
2019 void addAlignedMemoryOperands(MCInst &Inst, unsigned N) const {
2020 assert(N == 2 && "Invalid number of operands!");
2021 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2022 Inst.addOperand(MCOperand::CreateImm(Memory.Alignment));
2025 void addDupAlignedMemoryNoneOperands(MCInst &Inst, unsigned N) const {
2026 addAlignedMemoryOperands(Inst, N);
2029 void addAlignedMemoryNoneOperands(MCInst &Inst, unsigned N) const {
2030 addAlignedMemoryOperands(Inst, N);
2033 void addAlignedMemory16Operands(MCInst &Inst, unsigned N) const {
2034 addAlignedMemoryOperands(Inst, N);
2037 void addDupAlignedMemory16Operands(MCInst &Inst, unsigned N) const {
2038 addAlignedMemoryOperands(Inst, N);
2041 void addAlignedMemory32Operands(MCInst &Inst, unsigned N) const {
2042 addAlignedMemoryOperands(Inst, N);
2045 void addDupAlignedMemory32Operands(MCInst &Inst, unsigned N) const {
2046 addAlignedMemoryOperands(Inst, N);
2049 void addAlignedMemory64Operands(MCInst &Inst, unsigned N) const {
2050 addAlignedMemoryOperands(Inst, N);
2053 void addDupAlignedMemory64Operands(MCInst &Inst, unsigned N) const {
2054 addAlignedMemoryOperands(Inst, N);
2057 void addAlignedMemory64or128Operands(MCInst &Inst, unsigned N) const {
2058 addAlignedMemoryOperands(Inst, N);
2061 void addDupAlignedMemory64or128Operands(MCInst &Inst, unsigned N) const {
2062 addAlignedMemoryOperands(Inst, N);
2065 void addAlignedMemory64or128or256Operands(MCInst &Inst, unsigned N) const {
2066 addAlignedMemoryOperands(Inst, N);
2069 void addAddrMode2Operands(MCInst &Inst, unsigned N) const {
2070 assert(N == 3 && "Invalid number of operands!");
2071 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2072 if (!Memory.OffsetRegNum) {
2073 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2074 // Special case for #-0
2075 if (Val == INT32_MIN) Val = 0;
2076 if (Val < 0) Val = -Val;
2077 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
2079 // For register offset, we encode the shift type and negation flag
2081 Val = ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
2082 Memory.ShiftImm, Memory.ShiftType);
2084 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2085 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2086 Inst.addOperand(MCOperand::CreateImm(Val));
2089 void addAM2OffsetImmOperands(MCInst &Inst, unsigned N) const {
2090 assert(N == 2 && "Invalid number of operands!");
2091 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2092 assert(CE && "non-constant AM2OffsetImm operand!");
2093 int32_t Val = CE->getValue();
2094 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2095 // Special case for #-0
2096 if (Val == INT32_MIN) Val = 0;
2097 if (Val < 0) Val = -Val;
2098 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
2099 Inst.addOperand(MCOperand::CreateReg(0));
2100 Inst.addOperand(MCOperand::CreateImm(Val));
2103 void addAddrMode3Operands(MCInst &Inst, unsigned N) const {
2104 assert(N == 3 && "Invalid number of operands!");
2105 // If we have an immediate that's not a constant, treat it as a label
2106 // reference needing a fixup. If it is a constant, it's something else
2107 // and we reject it.
2109 Inst.addOperand(MCOperand::CreateExpr(getImm()));
2110 Inst.addOperand(MCOperand::CreateReg(0));
2111 Inst.addOperand(MCOperand::CreateImm(0));
2115 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2116 if (!Memory.OffsetRegNum) {
2117 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2118 // Special case for #-0
2119 if (Val == INT32_MIN) Val = 0;
2120 if (Val < 0) Val = -Val;
2121 Val = ARM_AM::getAM3Opc(AddSub, Val);
2123 // For register offset, we encode the shift type and negation flag
2125 Val = ARM_AM::getAM3Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add, 0);
2127 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2128 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2129 Inst.addOperand(MCOperand::CreateImm(Val));
2132 void addAM3OffsetOperands(MCInst &Inst, unsigned N) const {
2133 assert(N == 2 && "Invalid number of operands!");
2134 if (Kind == k_PostIndexRegister) {
2136 ARM_AM::getAM3Opc(PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub, 0);
2137 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
2138 Inst.addOperand(MCOperand::CreateImm(Val));
2143 const MCConstantExpr *CE = static_cast<const MCConstantExpr*>(getImm());
2144 int32_t Val = CE->getValue();
2145 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2146 // Special case for #-0
2147 if (Val == INT32_MIN) Val = 0;
2148 if (Val < 0) Val = -Val;
2149 Val = ARM_AM::getAM3Opc(AddSub, Val);
2150 Inst.addOperand(MCOperand::CreateReg(0));
2151 Inst.addOperand(MCOperand::CreateImm(Val));
2154 void addAddrMode5Operands(MCInst &Inst, unsigned N) const {
2155 assert(N == 2 && "Invalid number of operands!");
2156 // If we have an immediate that's not a constant, treat it as a label
2157 // reference needing a fixup. If it is a constant, it's something else
2158 // and we reject it.
2160 Inst.addOperand(MCOperand::CreateExpr(getImm()));
2161 Inst.addOperand(MCOperand::CreateImm(0));
2165 // The lower two bits are always zero and as such are not encoded.
2166 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
2167 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2168 // Special case for #-0
2169 if (Val == INT32_MIN) Val = 0;
2170 if (Val < 0) Val = -Val;
2171 Val = ARM_AM::getAM5Opc(AddSub, Val);
2172 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2173 Inst.addOperand(MCOperand::CreateImm(Val));
2176 void addMemImm8s4OffsetOperands(MCInst &Inst, unsigned N) const {
2177 assert(N == 2 && "Invalid number of operands!");
2178 // If we have an immediate that's not a constant, treat it as a label
2179 // reference needing a fixup. If it is a constant, it's something else
2180 // and we reject it.
2182 Inst.addOperand(MCOperand::CreateExpr(getImm()));
2183 Inst.addOperand(MCOperand::CreateImm(0));
2187 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2188 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2189 Inst.addOperand(MCOperand::CreateImm(Val));
2192 void addMemImm0_1020s4OffsetOperands(MCInst &Inst, unsigned N) const {
2193 assert(N == 2 && "Invalid number of operands!");
2194 // The lower two bits are always zero and as such are not encoded.
2195 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
2196 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2197 Inst.addOperand(MCOperand::CreateImm(Val));
2200 void addMemImm8OffsetOperands(MCInst &Inst, unsigned N) const {
2201 assert(N == 2 && "Invalid number of operands!");
2202 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2203 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2204 Inst.addOperand(MCOperand::CreateImm(Val));
2207 void addMemPosImm8OffsetOperands(MCInst &Inst, unsigned N) const {
2208 addMemImm8OffsetOperands(Inst, N);
2211 void addMemNegImm8OffsetOperands(MCInst &Inst, unsigned N) const {
2212 addMemImm8OffsetOperands(Inst, N);
2215 void addMemUImm12OffsetOperands(MCInst &Inst, unsigned N) const {
2216 assert(N == 2 && "Invalid number of operands!");
2217 // If this is an immediate, it's a label reference.
2219 addExpr(Inst, getImm());
2220 Inst.addOperand(MCOperand::CreateImm(0));
2224 // Otherwise, it's a normal memory reg+offset.
2225 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2226 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2227 Inst.addOperand(MCOperand::CreateImm(Val));
2230 void addMemImm12OffsetOperands(MCInst &Inst, unsigned N) const {
2231 assert(N == 2 && "Invalid number of operands!");
2232 // If this is an immediate, it's a label reference.
2234 addExpr(Inst, getImm());
2235 Inst.addOperand(MCOperand::CreateImm(0));
2239 // Otherwise, it's a normal memory reg+offset.
2240 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2241 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2242 Inst.addOperand(MCOperand::CreateImm(Val));
2245 void addMemTBBOperands(MCInst &Inst, unsigned N) const {
2246 assert(N == 2 && "Invalid number of operands!");
2247 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2248 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2251 void addMemTBHOperands(MCInst &Inst, unsigned N) const {
2252 assert(N == 2 && "Invalid number of operands!");
2253 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2254 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2257 void addMemRegOffsetOperands(MCInst &Inst, unsigned N) const {
2258 assert(N == 3 && "Invalid number of operands!");
2260 ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
2261 Memory.ShiftImm, Memory.ShiftType);
2262 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2263 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2264 Inst.addOperand(MCOperand::CreateImm(Val));
2267 void addT2MemRegOffsetOperands(MCInst &Inst, unsigned N) const {
2268 assert(N == 3 && "Invalid number of operands!");
2269 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2270 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2271 Inst.addOperand(MCOperand::CreateImm(Memory.ShiftImm));
2274 void addMemThumbRROperands(MCInst &Inst, unsigned N) const {
2275 assert(N == 2 && "Invalid number of operands!");
2276 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2277 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2280 void addMemThumbRIs4Operands(MCInst &Inst, unsigned N) const {
2281 assert(N == 2 && "Invalid number of operands!");
2282 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
2283 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2284 Inst.addOperand(MCOperand::CreateImm(Val));
2287 void addMemThumbRIs2Operands(MCInst &Inst, unsigned N) const {
2288 assert(N == 2 && "Invalid number of operands!");
2289 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 2) : 0;
2290 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2291 Inst.addOperand(MCOperand::CreateImm(Val));
2294 void addMemThumbRIs1Operands(MCInst &Inst, unsigned N) const {
2295 assert(N == 2 && "Invalid number of operands!");
2296 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue()) : 0;
2297 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2298 Inst.addOperand(MCOperand::CreateImm(Val));
2301 void addMemThumbSPIOperands(MCInst &Inst, unsigned N) const {
2302 assert(N == 2 && "Invalid number of operands!");
2303 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
2304 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2305 Inst.addOperand(MCOperand::CreateImm(Val));
2308 void addPostIdxImm8Operands(MCInst &Inst, unsigned N) const {
2309 assert(N == 1 && "Invalid number of operands!");
2310 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2311 assert(CE && "non-constant post-idx-imm8 operand!");
2312 int Imm = CE->getValue();
2313 bool isAdd = Imm >= 0;
2314 if (Imm == INT32_MIN) Imm = 0;
2315 Imm = (Imm < 0 ? -Imm : Imm) | (int)isAdd << 8;
2316 Inst.addOperand(MCOperand::CreateImm(Imm));
2319 void addPostIdxImm8s4Operands(MCInst &Inst, unsigned N) const {
2320 assert(N == 1 && "Invalid number of operands!");
2321 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2322 assert(CE && "non-constant post-idx-imm8s4 operand!");
2323 int Imm = CE->getValue();
2324 bool isAdd = Imm >= 0;
2325 if (Imm == INT32_MIN) Imm = 0;
2326 // Immediate is scaled by 4.
2327 Imm = ((Imm < 0 ? -Imm : Imm) / 4) | (int)isAdd << 8;
2328 Inst.addOperand(MCOperand::CreateImm(Imm));
2331 void addPostIdxRegOperands(MCInst &Inst, unsigned N) const {
2332 assert(N == 2 && "Invalid number of operands!");
2333 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
2334 Inst.addOperand(MCOperand::CreateImm(PostIdxReg.isAdd));
2337 void addPostIdxRegShiftedOperands(MCInst &Inst, unsigned N) const {
2338 assert(N == 2 && "Invalid number of operands!");
2339 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
2340 // The sign, shift type, and shift amount are encoded in a single operand
2341 // using the AM2 encoding helpers.
2342 ARM_AM::AddrOpc opc = PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub;
2343 unsigned Imm = ARM_AM::getAM2Opc(opc, PostIdxReg.ShiftImm,
2344 PostIdxReg.ShiftTy);
2345 Inst.addOperand(MCOperand::CreateImm(Imm));
2348 void addMSRMaskOperands(MCInst &Inst, unsigned N) const {
2349 assert(N == 1 && "Invalid number of operands!");
2350 Inst.addOperand(MCOperand::CreateImm(unsigned(getMSRMask())));
2353 void addProcIFlagsOperands(MCInst &Inst, unsigned N) const {
2354 assert(N == 1 && "Invalid number of operands!");
2355 Inst.addOperand(MCOperand::CreateImm(unsigned(getProcIFlags())));
2358 void addVecListOperands(MCInst &Inst, unsigned N) const {
2359 assert(N == 1 && "Invalid number of operands!");
2360 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
2363 void addVecListIndexedOperands(MCInst &Inst, unsigned N) const {
2364 assert(N == 2 && "Invalid number of operands!");
2365 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
2366 Inst.addOperand(MCOperand::CreateImm(VectorList.LaneIndex));
2369 void addVectorIndex8Operands(MCInst &Inst, unsigned N) const {
2370 assert(N == 1 && "Invalid number of operands!");
2371 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2374 void addVectorIndex16Operands(MCInst &Inst, unsigned N) const {
2375 assert(N == 1 && "Invalid number of operands!");
2376 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2379 void addVectorIndex32Operands(MCInst &Inst, unsigned N) const {
2380 assert(N == 1 && "Invalid number of operands!");
2381 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2384 void addNEONi8splatOperands(MCInst &Inst, unsigned N) const {
2385 assert(N == 1 && "Invalid number of operands!");
2386 // The immediate encodes the type of constant as well as the value.
2387 // Mask in that this is an i8 splat.
2388 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2389 Inst.addOperand(MCOperand::CreateImm(CE->getValue() | 0xe00));
2392 void addNEONi16splatOperands(MCInst &Inst, unsigned N) const {
2393 assert(N == 1 && "Invalid number of operands!");
2394 // The immediate encodes the type of constant as well as the value.
2395 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2396 unsigned Value = CE->getValue();
2398 Value = (Value >> 8) | 0xa00;
2401 Inst.addOperand(MCOperand::CreateImm(Value));
2404 void addNEONi32splatOperands(MCInst &Inst, unsigned N) const {
2405 assert(N == 1 && "Invalid number of operands!");
2406 // The immediate encodes the type of constant as well as the value.
2407 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2408 unsigned Value = CE->getValue();
2409 if (Value >= 256 && Value <= 0xff00)
2410 Value = (Value >> 8) | 0x200;
2411 else if (Value > 0xffff && Value <= 0xff0000)
2412 Value = (Value >> 16) | 0x400;
2413 else if (Value > 0xffffff)
2414 Value = (Value >> 24) | 0x600;
2415 Inst.addOperand(MCOperand::CreateImm(Value));
2418 void addNEONinvByteReplicateOperands(MCInst &Inst, unsigned N) const {
2419 assert(N == 1 && "Invalid number of operands!");
2420 // The immediate encodes the type of constant as well as the value.
2421 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2422 unsigned Value = CE->getValue();
2423 assert((Inst.getOpcode() == ARM::VMOVv8i8 ||
2424 Inst.getOpcode() == ARM::VMOVv16i8) &&
2425 "All vmvn instructions that wants to replicate non-zero byte "
2426 "always must be replaced with VMOVv8i8 or VMOVv16i8.");
2427 unsigned B = ((~Value) & 0xff);
2428 B |= 0xe00; // cmode = 0b1110
2429 Inst.addOperand(MCOperand::CreateImm(B));
2431 void addNEONi32vmovOperands(MCInst &Inst, unsigned N) const {
2432 assert(N == 1 && "Invalid number of operands!");
2433 // The immediate encodes the type of constant as well as the value.
2434 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2435 unsigned Value = CE->getValue();
2436 if (Value >= 256 && Value <= 0xffff)
2437 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2438 else if (Value > 0xffff && Value <= 0xffffff)
2439 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2440 else if (Value > 0xffffff)
2441 Value = (Value >> 24) | 0x600;
2442 Inst.addOperand(MCOperand::CreateImm(Value));
2445 void addNEONvmovByteReplicateOperands(MCInst &Inst, unsigned N) const {
2446 assert(N == 1 && "Invalid number of operands!");
2447 // The immediate encodes the type of constant as well as the value.
2448 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2449 unsigned Value = CE->getValue();
2450 assert((Inst.getOpcode() == ARM::VMOVv8i8 ||
2451 Inst.getOpcode() == ARM::VMOVv16i8) &&
2452 "All instructions that wants to replicate non-zero byte "
2453 "always must be replaced with VMOVv8i8 or VMOVv16i8.");
2454 unsigned B = Value & 0xff;
2455 B |= 0xe00; // cmode = 0b1110
2456 Inst.addOperand(MCOperand::CreateImm(B));
2458 void addNEONi32vmovNegOperands(MCInst &Inst, unsigned N) const {
2459 assert(N == 1 && "Invalid number of operands!");
2460 // The immediate encodes the type of constant as well as the value.
2461 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2462 unsigned Value = ~CE->getValue();
2463 if (Value >= 256 && Value <= 0xffff)
2464 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2465 else if (Value > 0xffff && Value <= 0xffffff)
2466 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2467 else if (Value > 0xffffff)
2468 Value = (Value >> 24) | 0x600;
2469 Inst.addOperand(MCOperand::CreateImm(Value));
2472 void addNEONi64splatOperands(MCInst &Inst, unsigned N) const {
2473 assert(N == 1 && "Invalid number of operands!");
2474 // The immediate encodes the type of constant as well as the value.
2475 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2476 uint64_t Value = CE->getValue();
2478 for (unsigned i = 0; i < 8; ++i, Value >>= 8) {
2479 Imm |= (Value & 1) << i;
2481 Inst.addOperand(MCOperand::CreateImm(Imm | 0x1e00));
2484 void print(raw_ostream &OS) const override;
2486 static ARMOperand *CreateITMask(unsigned Mask, SMLoc S) {
2487 ARMOperand *Op = new ARMOperand(k_ITCondMask);
2488 Op->ITMask.Mask = Mask;
2494 static ARMOperand *CreateCondCode(ARMCC::CondCodes CC, SMLoc S) {
2495 ARMOperand *Op = new ARMOperand(k_CondCode);
2502 static ARMOperand *CreateCoprocNum(unsigned CopVal, SMLoc S) {
2503 ARMOperand *Op = new ARMOperand(k_CoprocNum);
2504 Op->Cop.Val = CopVal;
2510 static ARMOperand *CreateCoprocReg(unsigned CopVal, SMLoc S) {
2511 ARMOperand *Op = new ARMOperand(k_CoprocReg);
2512 Op->Cop.Val = CopVal;
2518 static ARMOperand *CreateCoprocOption(unsigned Val, SMLoc S, SMLoc E) {
2519 ARMOperand *Op = new ARMOperand(k_CoprocOption);
2526 static ARMOperand *CreateCCOut(unsigned RegNum, SMLoc S) {
2527 ARMOperand *Op = new ARMOperand(k_CCOut);
2528 Op->Reg.RegNum = RegNum;
2534 static ARMOperand *CreateToken(StringRef Str, SMLoc S) {
2535 ARMOperand *Op = new ARMOperand(k_Token);
2536 Op->Tok.Data = Str.data();
2537 Op->Tok.Length = Str.size();
2543 static ARMOperand *CreateReg(unsigned RegNum, SMLoc S, SMLoc E) {
2544 ARMOperand *Op = new ARMOperand(k_Register);
2545 Op->Reg.RegNum = RegNum;
2551 static ARMOperand *CreateShiftedRegister(ARM_AM::ShiftOpc ShTy,
2556 ARMOperand *Op = new ARMOperand(k_ShiftedRegister);
2557 Op->RegShiftedReg.ShiftTy = ShTy;
2558 Op->RegShiftedReg.SrcReg = SrcReg;
2559 Op->RegShiftedReg.ShiftReg = ShiftReg;
2560 Op->RegShiftedReg.ShiftImm = ShiftImm;
2566 static ARMOperand *CreateShiftedImmediate(ARM_AM::ShiftOpc ShTy,
2570 ARMOperand *Op = new ARMOperand(k_ShiftedImmediate);
2571 Op->RegShiftedImm.ShiftTy = ShTy;
2572 Op->RegShiftedImm.SrcReg = SrcReg;
2573 Op->RegShiftedImm.ShiftImm = ShiftImm;
2579 static ARMOperand *CreateShifterImm(bool isASR, unsigned Imm,
2581 ARMOperand *Op = new ARMOperand(k_ShifterImmediate);
2582 Op->ShifterImm.isASR = isASR;
2583 Op->ShifterImm.Imm = Imm;
2589 static ARMOperand *CreateRotImm(unsigned Imm, SMLoc S, SMLoc E) {
2590 ARMOperand *Op = new ARMOperand(k_RotateImmediate);
2591 Op->RotImm.Imm = Imm;
2597 static ARMOperand *CreateBitfield(unsigned LSB, unsigned Width,
2599 ARMOperand *Op = new ARMOperand(k_BitfieldDescriptor);
2600 Op->Bitfield.LSB = LSB;
2601 Op->Bitfield.Width = Width;
2608 CreateRegList(SmallVectorImpl<std::pair<unsigned, unsigned> > &Regs,
2609 SMLoc StartLoc, SMLoc EndLoc) {
2610 assert (Regs.size() > 0 && "RegList contains no registers?");
2611 KindTy Kind = k_RegisterList;
2613 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Regs.front().second))
2614 Kind = k_DPRRegisterList;
2615 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].
2616 contains(Regs.front().second))
2617 Kind = k_SPRRegisterList;
2619 // Sort based on the register encoding values.
2620 array_pod_sort(Regs.begin(), Regs.end());
2622 ARMOperand *Op = new ARMOperand(Kind);
2623 for (SmallVectorImpl<std::pair<unsigned, unsigned> >::const_iterator
2624 I = Regs.begin(), E = Regs.end(); I != E; ++I)
2625 Op->Registers.push_back(I->second);
2626 Op->StartLoc = StartLoc;
2627 Op->EndLoc = EndLoc;
2631 static ARMOperand *CreateVectorList(unsigned RegNum, unsigned Count,
2632 bool isDoubleSpaced, SMLoc S, SMLoc E) {
2633 ARMOperand *Op = new ARMOperand(k_VectorList);
2634 Op->VectorList.RegNum = RegNum;
2635 Op->VectorList.Count = Count;
2636 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2642 static ARMOperand *CreateVectorListAllLanes(unsigned RegNum, unsigned Count,
2643 bool isDoubleSpaced,
2645 ARMOperand *Op = new ARMOperand(k_VectorListAllLanes);
2646 Op->VectorList.RegNum = RegNum;
2647 Op->VectorList.Count = Count;
2648 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2654 static ARMOperand *CreateVectorListIndexed(unsigned RegNum, unsigned Count,
2656 bool isDoubleSpaced,
2658 ARMOperand *Op = new ARMOperand(k_VectorListIndexed);
2659 Op->VectorList.RegNum = RegNum;
2660 Op->VectorList.Count = Count;
2661 Op->VectorList.LaneIndex = Index;
2662 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2668 static ARMOperand *CreateVectorIndex(unsigned Idx, SMLoc S, SMLoc E,
2670 ARMOperand *Op = new ARMOperand(k_VectorIndex);
2671 Op->VectorIndex.Val = Idx;
2677 static ARMOperand *CreateImm(const MCExpr *Val, SMLoc S, SMLoc E) {
2678 ARMOperand *Op = new ARMOperand(k_Immediate);
2685 static ARMOperand *CreateMem(unsigned BaseRegNum,
2686 const MCConstantExpr *OffsetImm,
2687 unsigned OffsetRegNum,
2688 ARM_AM::ShiftOpc ShiftType,
2693 SMLoc AlignmentLoc = SMLoc()) {
2694 ARMOperand *Op = new ARMOperand(k_Memory);
2695 Op->Memory.BaseRegNum = BaseRegNum;
2696 Op->Memory.OffsetImm = OffsetImm;
2697 Op->Memory.OffsetRegNum = OffsetRegNum;
2698 Op->Memory.ShiftType = ShiftType;
2699 Op->Memory.ShiftImm = ShiftImm;
2700 Op->Memory.Alignment = Alignment;
2701 Op->Memory.isNegative = isNegative;
2704 Op->AlignmentLoc = AlignmentLoc;
2708 static ARMOperand *CreatePostIdxReg(unsigned RegNum, bool isAdd,
2709 ARM_AM::ShiftOpc ShiftTy,
2712 ARMOperand *Op = new ARMOperand(k_PostIndexRegister);
2713 Op->PostIdxReg.RegNum = RegNum;
2714 Op->PostIdxReg.isAdd = isAdd;
2715 Op->PostIdxReg.ShiftTy = ShiftTy;
2716 Op->PostIdxReg.ShiftImm = ShiftImm;
2722 static ARMOperand *CreateMemBarrierOpt(ARM_MB::MemBOpt Opt, SMLoc S) {
2723 ARMOperand *Op = new ARMOperand(k_MemBarrierOpt);
2724 Op->MBOpt.Val = Opt;
2730 static ARMOperand *CreateInstSyncBarrierOpt(ARM_ISB::InstSyncBOpt Opt,
2732 ARMOperand *Op = new ARMOperand(k_InstSyncBarrierOpt);
2733 Op->ISBOpt.Val = Opt;
2739 static ARMOperand *CreateProcIFlags(ARM_PROC::IFlags IFlags, SMLoc S) {
2740 ARMOperand *Op = new ARMOperand(k_ProcIFlags);
2741 Op->IFlags.Val = IFlags;
2747 static ARMOperand *CreateMSRMask(unsigned MMask, SMLoc S) {
2748 ARMOperand *Op = new ARMOperand(k_MSRMask);
2749 Op->MMask.Val = MMask;
2756 } // end anonymous namespace.
2758 void ARMOperand::print(raw_ostream &OS) const {
2761 OS << "<ARMCC::" << ARMCondCodeToString(getCondCode()) << ">";
2764 OS << "<ccout " << getReg() << ">";
2766 case k_ITCondMask: {
2767 static const char *const MaskStr[] = {
2768 "()", "(t)", "(e)", "(tt)", "(et)", "(te)", "(ee)", "(ttt)", "(ett)",
2769 "(tet)", "(eet)", "(tte)", "(ete)", "(tee)", "(eee)"
2771 assert((ITMask.Mask & 0xf) == ITMask.Mask);
2772 OS << "<it-mask " << MaskStr[ITMask.Mask] << ">";
2776 OS << "<coprocessor number: " << getCoproc() << ">";
2779 OS << "<coprocessor register: " << getCoproc() << ">";
2781 case k_CoprocOption:
2782 OS << "<coprocessor option: " << CoprocOption.Val << ">";
2785 OS << "<mask: " << getMSRMask() << ">";
2788 getImm()->print(OS);
2790 case k_MemBarrierOpt:
2791 OS << "<ARM_MB::" << MemBOptToString(getMemBarrierOpt(), false) << ">";
2793 case k_InstSyncBarrierOpt:
2794 OS << "<ARM_ISB::" << InstSyncBOptToString(getInstSyncBarrierOpt()) << ">";
2798 << " base:" << Memory.BaseRegNum;
2801 case k_PostIndexRegister:
2802 OS << "post-idx register " << (PostIdxReg.isAdd ? "" : "-")
2803 << PostIdxReg.RegNum;
2804 if (PostIdxReg.ShiftTy != ARM_AM::no_shift)
2805 OS << ARM_AM::getShiftOpcStr(PostIdxReg.ShiftTy) << " "
2806 << PostIdxReg.ShiftImm;
2809 case k_ProcIFlags: {
2810 OS << "<ARM_PROC::";
2811 unsigned IFlags = getProcIFlags();
2812 for (int i=2; i >= 0; --i)
2813 if (IFlags & (1 << i))
2814 OS << ARM_PROC::IFlagsToString(1 << i);
2819 OS << "<register " << getReg() << ">";
2821 case k_ShifterImmediate:
2822 OS << "<shift " << (ShifterImm.isASR ? "asr" : "lsl")
2823 << " #" << ShifterImm.Imm << ">";
2825 case k_ShiftedRegister:
2826 OS << "<so_reg_reg "
2827 << RegShiftedReg.SrcReg << " "
2828 << ARM_AM::getShiftOpcStr(RegShiftedReg.ShiftTy)
2829 << " " << RegShiftedReg.ShiftReg << ">";
2831 case k_ShiftedImmediate:
2832 OS << "<so_reg_imm "
2833 << RegShiftedImm.SrcReg << " "
2834 << ARM_AM::getShiftOpcStr(RegShiftedImm.ShiftTy)
2835 << " #" << RegShiftedImm.ShiftImm << ">";
2837 case k_RotateImmediate:
2838 OS << "<ror " << " #" << (RotImm.Imm * 8) << ">";
2840 case k_BitfieldDescriptor:
2841 OS << "<bitfield " << "lsb: " << Bitfield.LSB
2842 << ", width: " << Bitfield.Width << ">";
2844 case k_RegisterList:
2845 case k_DPRRegisterList:
2846 case k_SPRRegisterList: {
2847 OS << "<register_list ";
2849 const SmallVectorImpl<unsigned> &RegList = getRegList();
2850 for (SmallVectorImpl<unsigned>::const_iterator
2851 I = RegList.begin(), E = RegList.end(); I != E; ) {
2853 if (++I < E) OS << ", ";
2860 OS << "<vector_list " << VectorList.Count << " * "
2861 << VectorList.RegNum << ">";
2863 case k_VectorListAllLanes:
2864 OS << "<vector_list(all lanes) " << VectorList.Count << " * "
2865 << VectorList.RegNum << ">";
2867 case k_VectorListIndexed:
2868 OS << "<vector_list(lane " << VectorList.LaneIndex << ") "
2869 << VectorList.Count << " * " << VectorList.RegNum << ">";
2872 OS << "'" << getToken() << "'";
2875 OS << "<vectorindex " << getVectorIndex() << ">";
2880 /// @name Auto-generated Match Functions
2883 static unsigned MatchRegisterName(StringRef Name);
2887 bool ARMAsmParser::ParseRegister(unsigned &RegNo,
2888 SMLoc &StartLoc, SMLoc &EndLoc) {
2889 StartLoc = Parser.getTok().getLoc();
2890 EndLoc = Parser.getTok().getEndLoc();
2891 RegNo = tryParseRegister();
2893 return (RegNo == (unsigned)-1);
2896 /// Try to parse a register name. The token must be an Identifier when called,
2897 /// and if it is a register name the token is eaten and the register number is
2898 /// returned. Otherwise return -1.
2900 int ARMAsmParser::tryParseRegister() {
2901 const AsmToken &Tok = Parser.getTok();
2902 if (Tok.isNot(AsmToken::Identifier)) return -1;
2904 std::string lowerCase = Tok.getString().lower();
2905 unsigned RegNum = MatchRegisterName(lowerCase);
2907 RegNum = StringSwitch<unsigned>(lowerCase)
2908 .Case("r13", ARM::SP)
2909 .Case("r14", ARM::LR)
2910 .Case("r15", ARM::PC)
2911 .Case("ip", ARM::R12)
2912 // Additional register name aliases for 'gas' compatibility.
2913 .Case("a1", ARM::R0)
2914 .Case("a2", ARM::R1)
2915 .Case("a3", ARM::R2)
2916 .Case("a4", ARM::R3)
2917 .Case("v1", ARM::R4)
2918 .Case("v2", ARM::R5)
2919 .Case("v3", ARM::R6)
2920 .Case("v4", ARM::R7)
2921 .Case("v5", ARM::R8)
2922 .Case("v6", ARM::R9)
2923 .Case("v7", ARM::R10)
2924 .Case("v8", ARM::R11)
2925 .Case("sb", ARM::R9)
2926 .Case("sl", ARM::R10)
2927 .Case("fp", ARM::R11)
2931 // Check for aliases registered via .req. Canonicalize to lower case.
2932 // That's more consistent since register names are case insensitive, and
2933 // it's how the original entry was passed in from MC/MCParser/AsmParser.
2934 StringMap<unsigned>::const_iterator Entry = RegisterReqs.find(lowerCase);
2935 // If no match, return failure.
2936 if (Entry == RegisterReqs.end())
2938 Parser.Lex(); // Eat identifier token.
2939 return Entry->getValue();
2942 Parser.Lex(); // Eat identifier token.
2947 // Try to parse a shifter (e.g., "lsl <amt>"). On success, return 0.
2948 // If a recoverable error occurs, return 1. If an irrecoverable error
2949 // occurs, return -1. An irrecoverable error is one where tokens have been
2950 // consumed in the process of trying to parse the shifter (i.e., when it is
2951 // indeed a shifter operand, but malformed).
2952 int ARMAsmParser::tryParseShiftRegister(
2953 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2954 SMLoc S = Parser.getTok().getLoc();
2955 const AsmToken &Tok = Parser.getTok();
2956 if (Tok.isNot(AsmToken::Identifier))
2959 std::string lowerCase = Tok.getString().lower();
2960 ARM_AM::ShiftOpc ShiftTy = StringSwitch<ARM_AM::ShiftOpc>(lowerCase)
2961 .Case("asl", ARM_AM::lsl)
2962 .Case("lsl", ARM_AM::lsl)
2963 .Case("lsr", ARM_AM::lsr)
2964 .Case("asr", ARM_AM::asr)
2965 .Case("ror", ARM_AM::ror)
2966 .Case("rrx", ARM_AM::rrx)
2967 .Default(ARM_AM::no_shift);
2969 if (ShiftTy == ARM_AM::no_shift)
2972 Parser.Lex(); // Eat the operator.
2974 // The source register for the shift has already been added to the
2975 // operand list, so we need to pop it off and combine it into the shifted
2976 // register operand instead.
2977 std::unique_ptr<ARMOperand> PrevOp((ARMOperand*)Operands.pop_back_val());
2978 if (!PrevOp->isReg())
2979 return Error(PrevOp->getStartLoc(), "shift must be of a register");
2980 int SrcReg = PrevOp->getReg();
2985 if (ShiftTy == ARM_AM::rrx) {
2986 // RRX Doesn't have an explicit shift amount. The encoder expects
2987 // the shift register to be the same as the source register. Seems odd,
2991 // Figure out if this is shifted by a constant or a register (for non-RRX).
2992 if (Parser.getTok().is(AsmToken::Hash) ||
2993 Parser.getTok().is(AsmToken::Dollar)) {
2994 Parser.Lex(); // Eat hash.
2995 SMLoc ImmLoc = Parser.getTok().getLoc();
2996 const MCExpr *ShiftExpr = 0;
2997 if (getParser().parseExpression(ShiftExpr, EndLoc)) {
2998 Error(ImmLoc, "invalid immediate shift value");
3001 // The expression must be evaluatable as an immediate.
3002 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftExpr);
3004 Error(ImmLoc, "invalid immediate shift value");
3007 // Range check the immediate.
3008 // lsl, ror: 0 <= imm <= 31
3009 // lsr, asr: 0 <= imm <= 32
3010 Imm = CE->getValue();
3012 ((ShiftTy == ARM_AM::lsl || ShiftTy == ARM_AM::ror) && Imm > 31) ||
3013 ((ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr) && Imm > 32)) {
3014 Error(ImmLoc, "immediate shift value out of range");
3017 // shift by zero is a nop. Always send it through as lsl.
3018 // ('as' compatibility)
3020 ShiftTy = ARM_AM::lsl;
3021 } else if (Parser.getTok().is(AsmToken::Identifier)) {
3022 SMLoc L = Parser.getTok().getLoc();
3023 EndLoc = Parser.getTok().getEndLoc();
3024 ShiftReg = tryParseRegister();
3025 if (ShiftReg == -1) {
3026 Error (L, "expected immediate or register in shift operand");
3030 Error (Parser.getTok().getLoc(),
3031 "expected immediate or register in shift operand");
3036 if (ShiftReg && ShiftTy != ARM_AM::rrx)
3037 Operands.push_back(ARMOperand::CreateShiftedRegister(ShiftTy, SrcReg,
3041 Operands.push_back(ARMOperand::CreateShiftedImmediate(ShiftTy, SrcReg, Imm,
3048 /// Try to parse a register name. The token must be an Identifier when called.
3049 /// If it's a register, an AsmOperand is created. Another AsmOperand is created
3050 /// if there is a "writeback". 'true' if it's not a register.
3052 /// TODO this is likely to change to allow different register types and or to
3053 /// parse for a specific register type.
3055 tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3056 const AsmToken &RegTok = Parser.getTok();
3057 int RegNo = tryParseRegister();
3061 Operands.push_back(ARMOperand::CreateReg(RegNo, RegTok.getLoc(),
3062 RegTok.getEndLoc()));
3064 const AsmToken &ExclaimTok = Parser.getTok();
3065 if (ExclaimTok.is(AsmToken::Exclaim)) {
3066 Operands.push_back(ARMOperand::CreateToken(ExclaimTok.getString(),
3067 ExclaimTok.getLoc()));
3068 Parser.Lex(); // Eat exclaim token
3072 // Also check for an index operand. This is only legal for vector registers,
3073 // but that'll get caught OK in operand matching, so we don't need to
3074 // explicitly filter everything else out here.
3075 if (Parser.getTok().is(AsmToken::LBrac)) {
3076 SMLoc SIdx = Parser.getTok().getLoc();
3077 Parser.Lex(); // Eat left bracket token.
3079 const MCExpr *ImmVal;
3080 if (getParser().parseExpression(ImmVal))
3082 const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(ImmVal);
3084 return TokError("immediate value expected for vector index");
3086 if (Parser.getTok().isNot(AsmToken::RBrac))
3087 return Error(Parser.getTok().getLoc(), "']' expected");
3089 SMLoc E = Parser.getTok().getEndLoc();
3090 Parser.Lex(); // Eat right bracket token.
3092 Operands.push_back(ARMOperand::CreateVectorIndex(MCE->getValue(),
3100 /// MatchCoprocessorOperandName - Try to parse an coprocessor related
3101 /// instruction with a symbolic operand name. Example: "p1", "p7", "c3",
3103 static int MatchCoprocessorOperandName(StringRef Name, char CoprocOp) {
3104 // Use the same layout as the tablegen'erated register name matcher. Ugly,
3106 switch (Name.size()) {
3109 if (Name[0] != CoprocOp)
3125 if (Name[0] != CoprocOp || Name[1] != '1')
3129 // p10 and p11 are invalid for coproc instructions (reserved for FP/NEON)
3130 case '0': return CoprocOp == 'p'? -1: 10;
3131 case '1': return CoprocOp == 'p'? -1: 11;
3132 case '2': return 12;
3133 case '3': return 13;
3134 case '4': return 14;
3135 case '5': return 15;
3140 /// parseITCondCode - Try to parse a condition code for an IT instruction.
3141 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3142 parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3143 SMLoc S = Parser.getTok().getLoc();
3144 const AsmToken &Tok = Parser.getTok();
3145 if (!Tok.is(AsmToken::Identifier))
3146 return MatchOperand_NoMatch;
3147 unsigned CC = StringSwitch<unsigned>(Tok.getString().lower())
3148 .Case("eq", ARMCC::EQ)
3149 .Case("ne", ARMCC::NE)
3150 .Case("hs", ARMCC::HS)
3151 .Case("cs", ARMCC::HS)
3152 .Case("lo", ARMCC::LO)
3153 .Case("cc", ARMCC::LO)
3154 .Case("mi", ARMCC::MI)
3155 .Case("pl", ARMCC::PL)
3156 .Case("vs", ARMCC::VS)
3157 .Case("vc", ARMCC::VC)
3158 .Case("hi", ARMCC::HI)
3159 .Case("ls", ARMCC::LS)
3160 .Case("ge", ARMCC::GE)
3161 .Case("lt", ARMCC::LT)
3162 .Case("gt", ARMCC::GT)
3163 .Case("le", ARMCC::LE)
3164 .Case("al", ARMCC::AL)
3167 return MatchOperand_NoMatch;
3168 Parser.Lex(); // Eat the token.
3170 Operands.push_back(ARMOperand::CreateCondCode(ARMCC::CondCodes(CC), S));
3172 return MatchOperand_Success;
3175 /// parseCoprocNumOperand - Try to parse an coprocessor number operand. The
3176 /// token must be an Identifier when called, and if it is a coprocessor
3177 /// number, the token is eaten and the operand is added to the operand list.
3178 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3179 parseCoprocNumOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3180 SMLoc S = Parser.getTok().getLoc();
3181 const AsmToken &Tok = Parser.getTok();
3182 if (Tok.isNot(AsmToken::Identifier))
3183 return MatchOperand_NoMatch;
3185 int Num = MatchCoprocessorOperandName(Tok.getString(), 'p');
3187 return MatchOperand_NoMatch;
3189 Parser.Lex(); // Eat identifier token.
3190 Operands.push_back(ARMOperand::CreateCoprocNum(Num, S));
3191 return MatchOperand_Success;
3194 /// parseCoprocRegOperand - Try to parse an coprocessor register operand. The
3195 /// token must be an Identifier when called, and if it is a coprocessor
3196 /// number, the token is eaten and the operand is added to the operand list.
3197 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3198 parseCoprocRegOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3199 SMLoc S = Parser.getTok().getLoc();
3200 const AsmToken &Tok = Parser.getTok();
3201 if (Tok.isNot(AsmToken::Identifier))
3202 return MatchOperand_NoMatch;
3204 int Reg = MatchCoprocessorOperandName(Tok.getString(), 'c');
3206 return MatchOperand_NoMatch;
3208 Parser.Lex(); // Eat identifier token.
3209 Operands.push_back(ARMOperand::CreateCoprocReg(Reg, S));
3210 return MatchOperand_Success;
3213 /// parseCoprocOptionOperand - Try to parse an coprocessor option operand.
3214 /// coproc_option : '{' imm0_255 '}'
3215 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3216 parseCoprocOptionOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3217 SMLoc S = Parser.getTok().getLoc();
3219 // If this isn't a '{', this isn't a coprocessor immediate operand.
3220 if (Parser.getTok().isNot(AsmToken::LCurly))
3221 return MatchOperand_NoMatch;
3222 Parser.Lex(); // Eat the '{'
3225 SMLoc Loc = Parser.getTok().getLoc();
3226 if (getParser().parseExpression(Expr)) {
3227 Error(Loc, "illegal expression");
3228 return MatchOperand_ParseFail;
3230 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
3231 if (!CE || CE->getValue() < 0 || CE->getValue() > 255) {
3232 Error(Loc, "coprocessor option must be an immediate in range [0, 255]");
3233 return MatchOperand_ParseFail;
3235 int Val = CE->getValue();
3237 // Check for and consume the closing '}'
3238 if (Parser.getTok().isNot(AsmToken::RCurly))
3239 return MatchOperand_ParseFail;
3240 SMLoc E = Parser.getTok().getEndLoc();
3241 Parser.Lex(); // Eat the '}'
3243 Operands.push_back(ARMOperand::CreateCoprocOption(Val, S, E));
3244 return MatchOperand_Success;
3247 // For register list parsing, we need to map from raw GPR register numbering
3248 // to the enumeration values. The enumeration values aren't sorted by
3249 // register number due to our using "sp", "lr" and "pc" as canonical names.
3250 static unsigned getNextRegister(unsigned Reg) {
3251 // If this is a GPR, we need to do it manually, otherwise we can rely
3252 // on the sort ordering of the enumeration since the other reg-classes
3254 if (!ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3257 default: llvm_unreachable("Invalid GPR number!");
3258 case ARM::R0: return ARM::R1; case ARM::R1: return ARM::R2;
3259 case ARM::R2: return ARM::R3; case ARM::R3: return ARM::R4;
3260 case ARM::R4: return ARM::R5; case ARM::R5: return ARM::R6;
3261 case ARM::R6: return ARM::R7; case ARM::R7: return ARM::R8;
3262 case ARM::R8: return ARM::R9; case ARM::R9: return ARM::R10;
3263 case ARM::R10: return ARM::R11; case ARM::R11: return ARM::R12;
3264 case ARM::R12: return ARM::SP; case ARM::SP: return ARM::LR;
3265 case ARM::LR: return ARM::PC; case ARM::PC: return ARM::R0;
3269 // Return the low-subreg of a given Q register.
3270 static unsigned getDRegFromQReg(unsigned QReg) {
3272 default: llvm_unreachable("expected a Q register!");
3273 case ARM::Q0: return ARM::D0;
3274 case ARM::Q1: return ARM::D2;
3275 case ARM::Q2: return ARM::D4;
3276 case ARM::Q3: return ARM::D6;
3277 case ARM::Q4: return ARM::D8;
3278 case ARM::Q5: return ARM::D10;
3279 case ARM::Q6: return ARM::D12;
3280 case ARM::Q7: return ARM::D14;
3281 case ARM::Q8: return ARM::D16;
3282 case ARM::Q9: return ARM::D18;
3283 case ARM::Q10: return ARM::D20;
3284 case ARM::Q11: return ARM::D22;
3285 case ARM::Q12: return ARM::D24;
3286 case ARM::Q13: return ARM::D26;
3287 case ARM::Q14: return ARM::D28;
3288 case ARM::Q15: return ARM::D30;
3292 /// Parse a register list.
3294 parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3295 assert(Parser.getTok().is(AsmToken::LCurly) &&
3296 "Token is not a Left Curly Brace");
3297 SMLoc S = Parser.getTok().getLoc();
3298 Parser.Lex(); // Eat '{' token.
3299 SMLoc RegLoc = Parser.getTok().getLoc();
3301 // Check the first register in the list to see what register class
3302 // this is a list of.
3303 int Reg = tryParseRegister();
3305 return Error(RegLoc, "register expected");
3307 // The reglist instructions have at most 16 registers, so reserve
3308 // space for that many.
3310 SmallVector<std::pair<unsigned, unsigned>, 16> Registers;
3312 // Allow Q regs and just interpret them as the two D sub-registers.
3313 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3314 Reg = getDRegFromQReg(Reg);
3315 EReg = MRI->getEncodingValue(Reg);
3316 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3319 const MCRegisterClass *RC;
3320 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3321 RC = &ARMMCRegisterClasses[ARM::GPRRegClassID];
3322 else if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg))
3323 RC = &ARMMCRegisterClasses[ARM::DPRRegClassID];
3324 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].contains(Reg))
3325 RC = &ARMMCRegisterClasses[ARM::SPRRegClassID];
3327 return Error(RegLoc, "invalid register in register list");
3329 // Store the register.
3330 EReg = MRI->getEncodingValue(Reg);
3331 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3333 // This starts immediately after the first register token in the list,
3334 // so we can see either a comma or a minus (range separator) as a legal
3336 while (Parser.getTok().is(AsmToken::Comma) ||
3337 Parser.getTok().is(AsmToken::Minus)) {
3338 if (Parser.getTok().is(AsmToken::Minus)) {
3339 Parser.Lex(); // Eat the minus.
3340 SMLoc AfterMinusLoc = Parser.getTok().getLoc();
3341 int EndReg = tryParseRegister();
3343 return Error(AfterMinusLoc, "register expected");
3344 // Allow Q regs and just interpret them as the two D sub-registers.
3345 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3346 EndReg = getDRegFromQReg(EndReg) + 1;
3347 // If the register is the same as the start reg, there's nothing
3351 // The register must be in the same register class as the first.
3352 if (!RC->contains(EndReg))
3353 return Error(AfterMinusLoc, "invalid register in register list");
3354 // Ranges must go from low to high.
3355 if (MRI->getEncodingValue(Reg) > MRI->getEncodingValue(EndReg))
3356 return Error(AfterMinusLoc, "bad range in register list");
3358 // Add all the registers in the range to the register list.
3359 while (Reg != EndReg) {
3360 Reg = getNextRegister(Reg);
3361 EReg = MRI->getEncodingValue(Reg);
3362 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3366 Parser.Lex(); // Eat the comma.
3367 RegLoc = Parser.getTok().getLoc();
3369 const AsmToken RegTok = Parser.getTok();
3370 Reg = tryParseRegister();
3372 return Error(RegLoc, "register expected");
3373 // Allow Q regs and just interpret them as the two D sub-registers.
3374 bool isQReg = false;
3375 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3376 Reg = getDRegFromQReg(Reg);
3379 // The register must be in the same register class as the first.
3380 if (!RC->contains(Reg))
3381 return Error(RegLoc, "invalid register in register list");
3382 // List must be monotonically increasing.
3383 if (MRI->getEncodingValue(Reg) < MRI->getEncodingValue(OldReg)) {
3384 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3385 Warning(RegLoc, "register list not in ascending order");
3387 return Error(RegLoc, "register list not in ascending order");
3389 if (MRI->getEncodingValue(Reg) == MRI->getEncodingValue(OldReg)) {
3390 Warning(RegLoc, "duplicated register (" + RegTok.getString() +
3391 ") in register list");
3394 // VFP register lists must also be contiguous.
3395 if (RC != &ARMMCRegisterClasses[ARM::GPRRegClassID] &&
3397 return Error(RegLoc, "non-contiguous register range");
3398 EReg = MRI->getEncodingValue(Reg);
3399 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3401 EReg = MRI->getEncodingValue(++Reg);
3402 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3406 if (Parser.getTok().isNot(AsmToken::RCurly))
3407 return Error(Parser.getTok().getLoc(), "'}' expected");
3408 SMLoc E = Parser.getTok().getEndLoc();
3409 Parser.Lex(); // Eat '}' token.
3411 // Push the register list operand.
3412 Operands.push_back(ARMOperand::CreateRegList(Registers, S, E));
3414 // The ARM system instruction variants for LDM/STM have a '^' token here.
3415 if (Parser.getTok().is(AsmToken::Caret)) {
3416 Operands.push_back(ARMOperand::CreateToken("^",Parser.getTok().getLoc()));
3417 Parser.Lex(); // Eat '^' token.
3423 // Helper function to parse the lane index for vector lists.
3424 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3425 parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index, SMLoc &EndLoc) {
3426 Index = 0; // Always return a defined index value.
3427 if (Parser.getTok().is(AsmToken::LBrac)) {
3428 Parser.Lex(); // Eat the '['.
3429 if (Parser.getTok().is(AsmToken::RBrac)) {
3430 // "Dn[]" is the 'all lanes' syntax.
3431 LaneKind = AllLanes;
3432 EndLoc = Parser.getTok().getEndLoc();
3433 Parser.Lex(); // Eat the ']'.
3434 return MatchOperand_Success;
3437 // There's an optional '#' token here. Normally there wouldn't be, but
3438 // inline assemble puts one in, and it's friendly to accept that.
3439 if (Parser.getTok().is(AsmToken::Hash))
3440 Parser.Lex(); // Eat '#' or '$'.
3442 const MCExpr *LaneIndex;
3443 SMLoc Loc = Parser.getTok().getLoc();
3444 if (getParser().parseExpression(LaneIndex)) {
3445 Error(Loc, "illegal expression");
3446 return MatchOperand_ParseFail;
3448 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LaneIndex);
3450 Error(Loc, "lane index must be empty or an integer");
3451 return MatchOperand_ParseFail;
3453 if (Parser.getTok().isNot(AsmToken::RBrac)) {
3454 Error(Parser.getTok().getLoc(), "']' expected");
3455 return MatchOperand_ParseFail;
3457 EndLoc = Parser.getTok().getEndLoc();
3458 Parser.Lex(); // Eat the ']'.
3459 int64_t Val = CE->getValue();
3461 // FIXME: Make this range check context sensitive for .8, .16, .32.
3462 if (Val < 0 || Val > 7) {
3463 Error(Parser.getTok().getLoc(), "lane index out of range");
3464 return MatchOperand_ParseFail;
3467 LaneKind = IndexedLane;
3468 return MatchOperand_Success;
3471 return MatchOperand_Success;
3474 // parse a vector register list
3475 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3476 parseVectorList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3477 VectorLaneTy LaneKind;
3479 SMLoc S = Parser.getTok().getLoc();
3480 // As an extension (to match gas), support a plain D register or Q register
3481 // (without encosing curly braces) as a single or double entry list,
3483 if (Parser.getTok().is(AsmToken::Identifier)) {
3484 SMLoc E = Parser.getTok().getEndLoc();
3485 int Reg = tryParseRegister();
3487 return MatchOperand_NoMatch;
3488 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg)) {
3489 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex, E);
3490 if (Res != MatchOperand_Success)
3494 Operands.push_back(ARMOperand::CreateVectorList(Reg, 1, false, S, E));
3497 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 1, false,
3501 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 1,
3506 return MatchOperand_Success;
3508 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3509 Reg = getDRegFromQReg(Reg);
3510 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex, E);
3511 if (Res != MatchOperand_Success)
3515 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3516 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3517 Operands.push_back(ARMOperand::CreateVectorList(Reg, 2, false, S, E));
3520 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3521 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3522 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 2, false,
3526 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 2,
3531 return MatchOperand_Success;
3533 Error(S, "vector register expected");
3534 return MatchOperand_ParseFail;
3537 if (Parser.getTok().isNot(AsmToken::LCurly))
3538 return MatchOperand_NoMatch;
3540 Parser.Lex(); // Eat '{' token.
3541 SMLoc RegLoc = Parser.getTok().getLoc();
3543 int Reg = tryParseRegister();
3545 Error(RegLoc, "register expected");
3546 return MatchOperand_ParseFail;
3550 unsigned FirstReg = Reg;
3551 // The list is of D registers, but we also allow Q regs and just interpret
3552 // them as the two D sub-registers.
3553 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3554 FirstReg = Reg = getDRegFromQReg(Reg);
3555 Spacing = 1; // double-spacing requires explicit D registers, otherwise
3556 // it's ambiguous with four-register single spaced.
3562 if (parseVectorLane(LaneKind, LaneIndex, E) != MatchOperand_Success)
3563 return MatchOperand_ParseFail;
3565 while (Parser.getTok().is(AsmToken::Comma) ||
3566 Parser.getTok().is(AsmToken::Minus)) {
3567 if (Parser.getTok().is(AsmToken::Minus)) {
3569 Spacing = 1; // Register range implies a single spaced list.
3570 else if (Spacing == 2) {
3571 Error(Parser.getTok().getLoc(),
3572 "sequential registers in double spaced list");
3573 return MatchOperand_ParseFail;
3575 Parser.Lex(); // Eat the minus.
3576 SMLoc AfterMinusLoc = Parser.getTok().getLoc();
3577 int EndReg = tryParseRegister();
3579 Error(AfterMinusLoc, "register expected");
3580 return MatchOperand_ParseFail;
3582 // Allow Q regs and just interpret them as the two D sub-registers.
3583 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3584 EndReg = getDRegFromQReg(EndReg) + 1;
3585 // If the register is the same as the start reg, there's nothing
3589 // The register must be in the same register class as the first.
3590 if (!ARMMCRegisterClasses[ARM::DPRRegClassID].contains(EndReg)) {
3591 Error(AfterMinusLoc, "invalid register in register list");
3592 return MatchOperand_ParseFail;
3594 // Ranges must go from low to high.
3596 Error(AfterMinusLoc, "bad range in register list");
3597 return MatchOperand_ParseFail;
3599 // Parse the lane specifier if present.
3600 VectorLaneTy NextLaneKind;
3601 unsigned NextLaneIndex;
3602 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) !=
3603 MatchOperand_Success)
3604 return MatchOperand_ParseFail;
3605 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3606 Error(AfterMinusLoc, "mismatched lane index in register list");
3607 return MatchOperand_ParseFail;
3610 // Add all the registers in the range to the register list.
3611 Count += EndReg - Reg;
3615 Parser.Lex(); // Eat the comma.
3616 RegLoc = Parser.getTok().getLoc();
3618 Reg = tryParseRegister();
3620 Error(RegLoc, "register expected");
3621 return MatchOperand_ParseFail;
3623 // vector register lists must be contiguous.
3624 // It's OK to use the enumeration values directly here rather, as the
3625 // VFP register classes have the enum sorted properly.
3627 // The list is of D registers, but we also allow Q regs and just interpret
3628 // them as the two D sub-registers.
3629 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3631 Spacing = 1; // Register range implies a single spaced list.
3632 else if (Spacing == 2) {
3634 "invalid register in double-spaced list (must be 'D' register')");
3635 return MatchOperand_ParseFail;
3637 Reg = getDRegFromQReg(Reg);
3638 if (Reg != OldReg + 1) {
3639 Error(RegLoc, "non-contiguous register range");
3640 return MatchOperand_ParseFail;
3644 // Parse the lane specifier if present.
3645 VectorLaneTy NextLaneKind;
3646 unsigned NextLaneIndex;
3647 SMLoc LaneLoc = Parser.getTok().getLoc();
3648 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) !=
3649 MatchOperand_Success)
3650 return MatchOperand_ParseFail;
3651 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3652 Error(LaneLoc, "mismatched lane index in register list");
3653 return MatchOperand_ParseFail;
3657 // Normal D register.
3658 // Figure out the register spacing (single or double) of the list if
3659 // we don't know it already.
3661 Spacing = 1 + (Reg == OldReg + 2);
3663 // Just check that it's contiguous and keep going.
3664 if (Reg != OldReg + Spacing) {
3665 Error(RegLoc, "non-contiguous register range");
3666 return MatchOperand_ParseFail;
3669 // Parse the lane specifier if present.
3670 VectorLaneTy NextLaneKind;
3671 unsigned NextLaneIndex;
3672 SMLoc EndLoc = Parser.getTok().getLoc();
3673 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) != MatchOperand_Success)
3674 return MatchOperand_ParseFail;
3675 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3676 Error(EndLoc, "mismatched lane index in register list");
3677 return MatchOperand_ParseFail;
3681 if (Parser.getTok().isNot(AsmToken::RCurly)) {
3682 Error(Parser.getTok().getLoc(), "'}' expected");
3683 return MatchOperand_ParseFail;
3685 E = Parser.getTok().getEndLoc();
3686 Parser.Lex(); // Eat '}' token.
3690 // Two-register operands have been converted to the
3691 // composite register classes.
3693 const MCRegisterClass *RC = (Spacing == 1) ?
3694 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3695 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3696 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3699 Operands.push_back(ARMOperand::CreateVectorList(FirstReg, Count,
3700 (Spacing == 2), S, E));
3703 // Two-register operands have been converted to the
3704 // composite register classes.
3706 const MCRegisterClass *RC = (Spacing == 1) ?
3707 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3708 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3709 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3711 Operands.push_back(ARMOperand::CreateVectorListAllLanes(FirstReg, Count,
3716 Operands.push_back(ARMOperand::CreateVectorListIndexed(FirstReg, Count,
3722 return MatchOperand_Success;
3725 /// parseMemBarrierOptOperand - Try to parse DSB/DMB data barrier options.
3726 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3727 parseMemBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3728 SMLoc S = Parser.getTok().getLoc();
3729 const AsmToken &Tok = Parser.getTok();
3732 if (Tok.is(AsmToken::Identifier)) {
3733 StringRef OptStr = Tok.getString();
3735 Opt = StringSwitch<unsigned>(OptStr.slice(0, OptStr.size()).lower())
3736 .Case("sy", ARM_MB::SY)
3737 .Case("st", ARM_MB::ST)
3738 .Case("ld", ARM_MB::LD)
3739 .Case("sh", ARM_MB::ISH)
3740 .Case("ish", ARM_MB::ISH)
3741 .Case("shst", ARM_MB::ISHST)
3742 .Case("ishst", ARM_MB::ISHST)
3743 .Case("ishld", ARM_MB::ISHLD)
3744 .Case("nsh", ARM_MB::NSH)
3745 .Case("un", ARM_MB::NSH)
3746 .Case("nshst", ARM_MB::NSHST)
3747 .Case("nshld", ARM_MB::NSHLD)
3748 .Case("unst", ARM_MB::NSHST)
3749 .Case("osh", ARM_MB::OSH)
3750 .Case("oshst", ARM_MB::OSHST)
3751 .Case("oshld", ARM_MB::OSHLD)
3754 // ishld, oshld, nshld and ld are only available from ARMv8.
3755 if (!hasV8Ops() && (Opt == ARM_MB::ISHLD || Opt == ARM_MB::OSHLD ||
3756 Opt == ARM_MB::NSHLD || Opt == ARM_MB::LD))
3760 return MatchOperand_NoMatch;
3762 Parser.Lex(); // Eat identifier token.
3763 } else if (Tok.is(AsmToken::Hash) ||
3764 Tok.is(AsmToken::Dollar) ||
3765 Tok.is(AsmToken::Integer)) {
3766 if (Parser.getTok().isNot(AsmToken::Integer))
3767 Parser.Lex(); // Eat '#' or '$'.
3768 SMLoc Loc = Parser.getTok().getLoc();
3770 const MCExpr *MemBarrierID;
3771 if (getParser().parseExpression(MemBarrierID)) {
3772 Error(Loc, "illegal expression");
3773 return MatchOperand_ParseFail;
3776 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(MemBarrierID);
3778 Error(Loc, "constant expression expected");
3779 return MatchOperand_ParseFail;
3782 int Val = CE->getValue();
3784 Error(Loc, "immediate value out of range");
3785 return MatchOperand_ParseFail;
3788 Opt = ARM_MB::RESERVED_0 + Val;
3790 return MatchOperand_ParseFail;
3792 Operands.push_back(ARMOperand::CreateMemBarrierOpt((ARM_MB::MemBOpt)Opt, S));
3793 return MatchOperand_Success;
3796 /// parseInstSyncBarrierOptOperand - Try to parse ISB inst sync barrier options.
3797 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3798 parseInstSyncBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3799 SMLoc S = Parser.getTok().getLoc();
3800 const AsmToken &Tok = Parser.getTok();
3803 if (Tok.is(AsmToken::Identifier)) {
3804 StringRef OptStr = Tok.getString();
3806 if (OptStr.equals_lower("sy"))
3809 return MatchOperand_NoMatch;
3811 Parser.Lex(); // Eat identifier token.
3812 } else if (Tok.is(AsmToken::Hash) ||
3813 Tok.is(AsmToken::Dollar) ||
3814 Tok.is(AsmToken::Integer)) {
3815 if (Parser.getTok().isNot(AsmToken::Integer))
3816 Parser.Lex(); // Eat '#' or '$'.
3817 SMLoc Loc = Parser.getTok().getLoc();
3819 const MCExpr *ISBarrierID;
3820 if (getParser().parseExpression(ISBarrierID)) {
3821 Error(Loc, "illegal expression");
3822 return MatchOperand_ParseFail;
3825 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ISBarrierID);
3827 Error(Loc, "constant expression expected");
3828 return MatchOperand_ParseFail;
3831 int Val = CE->getValue();
3833 Error(Loc, "immediate value out of range");
3834 return MatchOperand_ParseFail;
3837 Opt = ARM_ISB::RESERVED_0 + Val;
3839 return MatchOperand_ParseFail;
3841 Operands.push_back(ARMOperand::CreateInstSyncBarrierOpt(
3842 (ARM_ISB::InstSyncBOpt)Opt, S));
3843 return MatchOperand_Success;
3847 /// parseProcIFlagsOperand - Try to parse iflags from CPS instruction.
3848 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3849 parseProcIFlagsOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3850 SMLoc S = Parser.getTok().getLoc();
3851 const AsmToken &Tok = Parser.getTok();
3852 if (!Tok.is(AsmToken::Identifier))
3853 return MatchOperand_NoMatch;
3854 StringRef IFlagsStr = Tok.getString();
3856 // An iflags string of "none" is interpreted to mean that none of the AIF
3857 // bits are set. Not a terribly useful instruction, but a valid encoding.
3858 unsigned IFlags = 0;
3859 if (IFlagsStr != "none") {
3860 for (int i = 0, e = IFlagsStr.size(); i != e; ++i) {
3861 unsigned Flag = StringSwitch<unsigned>(IFlagsStr.substr(i, 1))
3862 .Case("a", ARM_PROC::A)
3863 .Case("i", ARM_PROC::I)
3864 .Case("f", ARM_PROC::F)
3867 // If some specific iflag is already set, it means that some letter is
3868 // present more than once, this is not acceptable.
3869 if (Flag == ~0U || (IFlags & Flag))
3870 return MatchOperand_NoMatch;
3876 Parser.Lex(); // Eat identifier token.
3877 Operands.push_back(ARMOperand::CreateProcIFlags((ARM_PROC::IFlags)IFlags, S));
3878 return MatchOperand_Success;
3881 /// parseMSRMaskOperand - Try to parse mask flags from MSR instruction.
3882 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3883 parseMSRMaskOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3884 SMLoc S = Parser.getTok().getLoc();
3885 const AsmToken &Tok = Parser.getTok();
3886 if (!Tok.is(AsmToken::Identifier))
3887 return MatchOperand_NoMatch;
3888 StringRef Mask = Tok.getString();
3891 // See ARMv6-M 10.1.1
3892 std::string Name = Mask.lower();
3893 unsigned FlagsVal = StringSwitch<unsigned>(Name)
3894 // Note: in the documentation:
3895 // ARM deprecates using MSR APSR without a _<bits> qualifier as an alias
3896 // for MSR APSR_nzcvq.
3897 // but we do make it an alias here. This is so to get the "mask encoding"
3898 // bits correct on MSR APSR writes.
3900 // FIXME: Note the 0xc00 "mask encoding" bits version of the registers
3901 // should really only be allowed when writing a special register. Note
3902 // they get dropped in the MRS instruction reading a special register as
3903 // the SYSm field is only 8 bits.
3905 // FIXME: the _g and _nzcvqg versions are only allowed if the processor
3906 // includes the DSP extension but that is not checked.
3907 .Case("apsr", 0x800)
3908 .Case("apsr_nzcvq", 0x800)
3909 .Case("apsr_g", 0x400)
3910 .Case("apsr_nzcvqg", 0xc00)
3911 .Case("iapsr", 0x801)
3912 .Case("iapsr_nzcvq", 0x801)
3913 .Case("iapsr_g", 0x401)
3914 .Case("iapsr_nzcvqg", 0xc01)
3915 .Case("eapsr", 0x802)
3916 .Case("eapsr_nzcvq", 0x802)
3917 .Case("eapsr_g", 0x402)
3918 .Case("eapsr_nzcvqg", 0xc02)
3919 .Case("xpsr", 0x803)
3920 .Case("xpsr_nzcvq", 0x803)
3921 .Case("xpsr_g", 0x403)
3922 .Case("xpsr_nzcvqg", 0xc03)
3923 .Case("ipsr", 0x805)
3924 .Case("epsr", 0x806)
3925 .Case("iepsr", 0x807)
3928 .Case("primask", 0x810)
3929 .Case("basepri", 0x811)
3930 .Case("basepri_max", 0x812)
3931 .Case("faultmask", 0x813)
3932 .Case("control", 0x814)
3935 if (FlagsVal == ~0U)
3936 return MatchOperand_NoMatch;
3938 if (!hasV7Ops() && FlagsVal >= 0x811 && FlagsVal <= 0x813)
3939 // basepri, basepri_max and faultmask only valid for V7m.
3940 return MatchOperand_NoMatch;
3942 Parser.Lex(); // Eat identifier token.
3943 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3944 return MatchOperand_Success;
3947 // Split spec_reg from flag, example: CPSR_sxf => "CPSR" and "sxf"
3948 size_t Start = 0, Next = Mask.find('_');
3949 StringRef Flags = "";
3950 std::string SpecReg = Mask.slice(Start, Next).lower();
3951 if (Next != StringRef::npos)
3952 Flags = Mask.slice(Next+1, Mask.size());
3954 // FlagsVal contains the complete mask:
3956 // 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3957 unsigned FlagsVal = 0;
3959 if (SpecReg == "apsr") {
3960 FlagsVal = StringSwitch<unsigned>(Flags)
3961 .Case("nzcvq", 0x8) // same as CPSR_f
3962 .Case("g", 0x4) // same as CPSR_s
3963 .Case("nzcvqg", 0xc) // same as CPSR_fs
3966 if (FlagsVal == ~0U) {
3968 return MatchOperand_NoMatch;
3970 FlagsVal = 8; // No flag
3972 } else if (SpecReg == "cpsr" || SpecReg == "spsr") {
3973 // cpsr_all is an alias for cpsr_fc, as is plain cpsr.
3974 if (Flags == "all" || Flags == "")
3976 for (int i = 0, e = Flags.size(); i != e; ++i) {
3977 unsigned Flag = StringSwitch<unsigned>(Flags.substr(i, 1))
3984 // If some specific flag is already set, it means that some letter is
3985 // present more than once, this is not acceptable.
3986 if (FlagsVal == ~0U || (FlagsVal & Flag))
3987 return MatchOperand_NoMatch;
3990 } else // No match for special register.
3991 return MatchOperand_NoMatch;
3993 // Special register without flags is NOT equivalent to "fc" flags.
3994 // NOTE: This is a divergence from gas' behavior. Uncommenting the following
3995 // two lines would enable gas compatibility at the expense of breaking
4001 // Bit 4: Special Reg (cpsr, apsr => 0; spsr => 1)
4002 if (SpecReg == "spsr")
4005 Parser.Lex(); // Eat identifier token.
4006 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
4007 return MatchOperand_Success;
4010 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4011 parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands, StringRef Op,
4012 int Low, int High) {
4013 const AsmToken &Tok = Parser.getTok();
4014 if (Tok.isNot(AsmToken::Identifier)) {
4015 Error(Parser.getTok().getLoc(), Op + " operand expected.");
4016 return MatchOperand_ParseFail;
4018 StringRef ShiftName = Tok.getString();
4019 std::string LowerOp = Op.lower();
4020 std::string UpperOp = Op.upper();
4021 if (ShiftName != LowerOp && ShiftName != UpperOp) {
4022 Error(Parser.getTok().getLoc(), Op + " operand expected.");
4023 return MatchOperand_ParseFail;
4025 Parser.Lex(); // Eat shift type token.
4027 // There must be a '#' and a shift amount.
4028 if (Parser.getTok().isNot(AsmToken::Hash) &&
4029 Parser.getTok().isNot(AsmToken::Dollar)) {
4030 Error(Parser.getTok().getLoc(), "'#' expected");
4031 return MatchOperand_ParseFail;
4033 Parser.Lex(); // Eat hash token.
4035 const MCExpr *ShiftAmount;
4036 SMLoc Loc = Parser.getTok().getLoc();
4038 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
4039 Error(Loc, "illegal expression");
4040 return MatchOperand_ParseFail;
4042 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
4044 Error(Loc, "constant expression expected");
4045 return MatchOperand_ParseFail;
4047 int Val = CE->getValue();
4048 if (Val < Low || Val > High) {
4049 Error(Loc, "immediate value out of range");
4050 return MatchOperand_ParseFail;
4053 Operands.push_back(ARMOperand::CreateImm(CE, Loc, EndLoc));
4055 return MatchOperand_Success;
4058 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4059 parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4060 const AsmToken &Tok = Parser.getTok();
4061 SMLoc S = Tok.getLoc();
4062 if (Tok.isNot(AsmToken::Identifier)) {
4063 Error(S, "'be' or 'le' operand expected");
4064 return MatchOperand_ParseFail;
4066 int Val = StringSwitch<int>(Tok.getString().lower())
4070 Parser.Lex(); // Eat the token.
4073 Error(S, "'be' or 'le' operand expected");
4074 return MatchOperand_ParseFail;
4076 Operands.push_back(ARMOperand::CreateImm(MCConstantExpr::Create(Val,
4078 S, Tok.getEndLoc()));
4079 return MatchOperand_Success;
4082 /// parseShifterImm - Parse the shifter immediate operand for SSAT/USAT
4083 /// instructions. Legal values are:
4084 /// lsl #n 'n' in [0,31]
4085 /// asr #n 'n' in [1,32]
4086 /// n == 32 encoded as n == 0.
4087 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4088 parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4089 const AsmToken &Tok = Parser.getTok();
4090 SMLoc S = Tok.getLoc();
4091 if (Tok.isNot(AsmToken::Identifier)) {
4092 Error(S, "shift operator 'asr' or 'lsl' expected");
4093 return MatchOperand_ParseFail;
4095 StringRef ShiftName = Tok.getString();
4097 if (ShiftName == "lsl" || ShiftName == "LSL")
4099 else if (ShiftName == "asr" || ShiftName == "ASR")
4102 Error(S, "shift operator 'asr' or 'lsl' expected");
4103 return MatchOperand_ParseFail;
4105 Parser.Lex(); // Eat the operator.
4107 // A '#' and a shift amount.
4108 if (Parser.getTok().isNot(AsmToken::Hash) &&
4109 Parser.getTok().isNot(AsmToken::Dollar)) {
4110 Error(Parser.getTok().getLoc(), "'#' expected");
4111 return MatchOperand_ParseFail;
4113 Parser.Lex(); // Eat hash token.
4114 SMLoc ExLoc = Parser.getTok().getLoc();
4116 const MCExpr *ShiftAmount;
4118 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
4119 Error(ExLoc, "malformed shift expression");
4120 return MatchOperand_ParseFail;
4122 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
4124 Error(ExLoc, "shift amount must be an immediate");
4125 return MatchOperand_ParseFail;
4128 int64_t Val = CE->getValue();
4130 // Shift amount must be in [1,32]
4131 if (Val < 1 || Val > 32) {
4132 Error(ExLoc, "'asr' shift amount must be in range [1,32]");
4133 return MatchOperand_ParseFail;
4135 // asr #32 encoded as asr #0, but is not allowed in Thumb2 mode.
4136 if (isThumb() && Val == 32) {
4137 Error(ExLoc, "'asr #32' shift amount not allowed in Thumb mode");
4138 return MatchOperand_ParseFail;
4140 if (Val == 32) Val = 0;
4142 // Shift amount must be in [1,32]
4143 if (Val < 0 || Val > 31) {
4144 Error(ExLoc, "'lsr' shift amount must be in range [0,31]");
4145 return MatchOperand_ParseFail;
4149 Operands.push_back(ARMOperand::CreateShifterImm(isASR, Val, S, EndLoc));
4151 return MatchOperand_Success;
4154 /// parseRotImm - Parse the shifter immediate operand for SXTB/UXTB family
4155 /// of instructions. Legal values are:
4156 /// ror #n 'n' in {0, 8, 16, 24}
4157 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4158 parseRotImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4159 const AsmToken &Tok = Parser.getTok();
4160 SMLoc S = Tok.getLoc();
4161 if (Tok.isNot(AsmToken::Identifier))
4162 return MatchOperand_NoMatch;
4163 StringRef ShiftName = Tok.getString();
4164 if (ShiftName != "ror" && ShiftName != "ROR")
4165 return MatchOperand_NoMatch;
4166 Parser.Lex(); // Eat the operator.
4168 // A '#' and a rotate amount.
4169 if (Parser.getTok().isNot(AsmToken::Hash) &&
4170 Parser.getTok().isNot(AsmToken::Dollar)) {
4171 Error(Parser.getTok().getLoc(), "'#' expected");
4172 return MatchOperand_ParseFail;
4174 Parser.Lex(); // Eat hash token.
4175 SMLoc ExLoc = Parser.getTok().getLoc();
4177 const MCExpr *ShiftAmount;
4179 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
4180 Error(ExLoc, "malformed rotate expression");
4181 return MatchOperand_ParseFail;
4183 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
4185 Error(ExLoc, "rotate amount must be an immediate");
4186 return MatchOperand_ParseFail;
4189 int64_t Val = CE->getValue();
4190 // Shift amount must be in {0, 8, 16, 24} (0 is undocumented extension)
4191 // normally, zero is represented in asm by omitting the rotate operand
4193 if (Val != 8 && Val != 16 && Val != 24 && Val != 0) {
4194 Error(ExLoc, "'ror' rotate amount must be 8, 16, or 24");
4195 return MatchOperand_ParseFail;
4198 Operands.push_back(ARMOperand::CreateRotImm(Val, S, EndLoc));
4200 return MatchOperand_Success;
4203 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4204 parseBitfield(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4205 SMLoc S = Parser.getTok().getLoc();
4206 // The bitfield descriptor is really two operands, the LSB and the width.
4207 if (Parser.getTok().isNot(AsmToken::Hash) &&
4208 Parser.getTok().isNot(AsmToken::Dollar)) {
4209 Error(Parser.getTok().getLoc(), "'#' expected");
4210 return MatchOperand_ParseFail;
4212 Parser.Lex(); // Eat hash token.
4214 const MCExpr *LSBExpr;
4215 SMLoc E = Parser.getTok().getLoc();
4216 if (getParser().parseExpression(LSBExpr)) {
4217 Error(E, "malformed immediate expression");
4218 return MatchOperand_ParseFail;
4220 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LSBExpr);
4222 Error(E, "'lsb' operand must be an immediate");
4223 return MatchOperand_ParseFail;
4226 int64_t LSB = CE->getValue();
4227 // The LSB must be in the range [0,31]
4228 if (LSB < 0 || LSB > 31) {
4229 Error(E, "'lsb' operand must be in the range [0,31]");
4230 return MatchOperand_ParseFail;
4232 E = Parser.getTok().getLoc();
4234 // Expect another immediate operand.
4235 if (Parser.getTok().isNot(AsmToken::Comma)) {
4236 Error(Parser.getTok().getLoc(), "too few operands");
4237 return MatchOperand_ParseFail;
4239 Parser.Lex(); // Eat hash token.
4240 if (Parser.getTok().isNot(AsmToken::Hash) &&
4241 Parser.getTok().isNot(AsmToken::Dollar)) {
4242 Error(Parser.getTok().getLoc(), "'#' expected");
4243 return MatchOperand_ParseFail;
4245 Parser.Lex(); // Eat hash token.
4247 const MCExpr *WidthExpr;
4249 if (getParser().parseExpression(WidthExpr, EndLoc)) {
4250 Error(E, "malformed immediate expression");
4251 return MatchOperand_ParseFail;
4253 CE = dyn_cast<MCConstantExpr>(WidthExpr);
4255 Error(E, "'width' operand must be an immediate");
4256 return MatchOperand_ParseFail;
4259 int64_t Width = CE->getValue();
4260 // The LSB must be in the range [1,32-lsb]
4261 if (Width < 1 || Width > 32 - LSB) {
4262 Error(E, "'width' operand must be in the range [1,32-lsb]");
4263 return MatchOperand_ParseFail;
4266 Operands.push_back(ARMOperand::CreateBitfield(LSB, Width, S, EndLoc));
4268 return MatchOperand_Success;
4271 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4272 parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4273 // Check for a post-index addressing register operand. Specifically:
4274 // postidx_reg := '+' register {, shift}
4275 // | '-' register {, shift}
4276 // | register {, shift}
4278 // This method must return MatchOperand_NoMatch without consuming any tokens
4279 // in the case where there is no match, as other alternatives take other
4281 AsmToken Tok = Parser.getTok();
4282 SMLoc S = Tok.getLoc();
4283 bool haveEaten = false;
4285 if (Tok.is(AsmToken::Plus)) {
4286 Parser.Lex(); // Eat the '+' token.
4288 } else if (Tok.is(AsmToken::Minus)) {
4289 Parser.Lex(); // Eat the '-' token.
4294 SMLoc E = Parser.getTok().getEndLoc();
4295 int Reg = tryParseRegister();
4298 return MatchOperand_NoMatch;
4299 Error(Parser.getTok().getLoc(), "register expected");
4300 return MatchOperand_ParseFail;
4303 ARM_AM::ShiftOpc ShiftTy = ARM_AM::no_shift;
4304 unsigned ShiftImm = 0;
4305 if (Parser.getTok().is(AsmToken::Comma)) {
4306 Parser.Lex(); // Eat the ','.
4307 if (parseMemRegOffsetShift(ShiftTy, ShiftImm))
4308 return MatchOperand_ParseFail;
4310 // FIXME: Only approximates end...may include intervening whitespace.
4311 E = Parser.getTok().getLoc();
4314 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ShiftTy,
4317 return MatchOperand_Success;
4320 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4321 parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4322 // Check for a post-index addressing register operand. Specifically:
4323 // am3offset := '+' register
4330 // This method must return MatchOperand_NoMatch without consuming any tokens
4331 // in the case where there is no match, as other alternatives take other
4333 AsmToken Tok = Parser.getTok();
4334 SMLoc S = Tok.getLoc();
4336 // Do immediates first, as we always parse those if we have a '#'.
4337 if (Parser.getTok().is(AsmToken::Hash) ||
4338 Parser.getTok().is(AsmToken::Dollar)) {
4339 Parser.Lex(); // Eat '#' or '$'.
4340 // Explicitly look for a '-', as we need to encode negative zero
4342 bool isNegative = Parser.getTok().is(AsmToken::Minus);
4343 const MCExpr *Offset;
4345 if (getParser().parseExpression(Offset, E))
4346 return MatchOperand_ParseFail;
4347 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4349 Error(S, "constant expression expected");
4350 return MatchOperand_ParseFail;
4352 // Negative zero is encoded as the flag value INT32_MIN.
4353 int32_t Val = CE->getValue();
4354 if (isNegative && Val == 0)
4358 ARMOperand::CreateImm(MCConstantExpr::Create(Val, getContext()), S, E));
4360 return MatchOperand_Success;
4364 bool haveEaten = false;
4366 if (Tok.is(AsmToken::Plus)) {
4367 Parser.Lex(); // Eat the '+' token.
4369 } else if (Tok.is(AsmToken::Minus)) {
4370 Parser.Lex(); // Eat the '-' token.
4375 Tok = Parser.getTok();
4376 int Reg = tryParseRegister();
4379 return MatchOperand_NoMatch;
4380 Error(Tok.getLoc(), "register expected");
4381 return MatchOperand_ParseFail;
4384 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ARM_AM::no_shift,
4385 0, S, Tok.getEndLoc()));
4387 return MatchOperand_Success;
4390 /// Convert parsed operands to MCInst. Needed here because this instruction
4391 /// only has two register operands, but multiplication is commutative so
4392 /// assemblers should accept both "mul rD, rN, rD" and "mul rD, rD, rN".
4394 cvtThumbMultiply(MCInst &Inst,
4395 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4396 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4397 ((ARMOperand*)Operands[1])->addCCOutOperands(Inst, 1);
4398 // If we have a three-operand form, make sure to set Rn to be the operand
4399 // that isn't the same as Rd.
4401 if (Operands.size() == 6 &&
4402 ((ARMOperand*)Operands[4])->getReg() ==
4403 ((ARMOperand*)Operands[3])->getReg())
4405 ((ARMOperand*)Operands[RegOp])->addRegOperands(Inst, 1);
4406 Inst.addOperand(Inst.getOperand(0));
4407 ((ARMOperand*)Operands[2])->addCondCodeOperands(Inst, 2);
4411 cvtThumbBranches(MCInst &Inst,
4412 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4413 int CondOp = -1, ImmOp = -1;
4414 switch(Inst.getOpcode()) {
4416 case ARM::tBcc: CondOp = 1; ImmOp = 2; break;
4419 case ARM::t2Bcc: CondOp = 1; ImmOp = 3; break;
4421 default: llvm_unreachable("Unexpected instruction in cvtThumbBranches");
4423 // first decide whether or not the branch should be conditional
4424 // by looking at it's location relative to an IT block
4426 // inside an IT block we cannot have any conditional branches. any
4427 // such instructions needs to be converted to unconditional form
4428 switch(Inst.getOpcode()) {
4429 case ARM::tBcc: Inst.setOpcode(ARM::tB); break;
4430 case ARM::t2Bcc: Inst.setOpcode(ARM::t2B); break;
4433 // outside IT blocks we can only have unconditional branches with AL
4434 // condition code or conditional branches with non-AL condition code
4435 unsigned Cond = static_cast<ARMOperand*>(Operands[CondOp])->getCondCode();
4436 switch(Inst.getOpcode()) {
4439 Inst.setOpcode(Cond == ARMCC::AL ? ARM::tB : ARM::tBcc);
4443 Inst.setOpcode(Cond == ARMCC::AL ? ARM::t2B : ARM::t2Bcc);
4448 // now decide on encoding size based on branch target range
4449 switch(Inst.getOpcode()) {
4450 // classify tB as either t2B or t1B based on range of immediate operand
4452 ARMOperand* op = static_cast<ARMOperand*>(Operands[ImmOp]);
4453 if(!op->isSignedOffset<11, 1>() && isThumbTwo())
4454 Inst.setOpcode(ARM::t2B);
4457 // classify tBcc as either t2Bcc or t1Bcc based on range of immediate operand
4459 ARMOperand* op = static_cast<ARMOperand*>(Operands[ImmOp]);
4460 if(!op->isSignedOffset<8, 1>() && isThumbTwo())
4461 Inst.setOpcode(ARM::t2Bcc);
4465 ((ARMOperand*)Operands[ImmOp])->addImmOperands(Inst, 1);
4466 ((ARMOperand*)Operands[CondOp])->addCondCodeOperands(Inst, 2);
4469 /// Parse an ARM memory expression, return false if successful else return true
4470 /// or an error. The first token must be a '[' when called.
4472 parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4474 assert(Parser.getTok().is(AsmToken::LBrac) &&
4475 "Token is not a Left Bracket");
4476 S = Parser.getTok().getLoc();
4477 Parser.Lex(); // Eat left bracket token.
4479 const AsmToken &BaseRegTok = Parser.getTok();
4480 int BaseRegNum = tryParseRegister();
4481 if (BaseRegNum == -1)
4482 return Error(BaseRegTok.getLoc(), "register expected");
4484 // The next token must either be a comma, a colon or a closing bracket.
4485 const AsmToken &Tok = Parser.getTok();
4486 if (!Tok.is(AsmToken::Colon) && !Tok.is(AsmToken::Comma) &&
4487 !Tok.is(AsmToken::RBrac))
4488 return Error(Tok.getLoc(), "malformed memory operand");
4490 if (Tok.is(AsmToken::RBrac)) {
4491 E = Tok.getEndLoc();
4492 Parser.Lex(); // Eat right bracket token.
4494 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0, ARM_AM::no_shift,
4495 0, 0, false, S, E));
4497 // If there's a pre-indexing writeback marker, '!', just add it as a token
4498 // operand. It's rather odd, but syntactically valid.
4499 if (Parser.getTok().is(AsmToken::Exclaim)) {
4500 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4501 Parser.Lex(); // Eat the '!'.
4507 assert((Tok.is(AsmToken::Colon) || Tok.is(AsmToken::Comma)) &&
4508 "Lost colon or comma in memory operand?!");
4509 if (Tok.is(AsmToken::Comma)) {
4510 Parser.Lex(); // Eat the comma.
4513 // If we have a ':', it's an alignment specifier.
4514 if (Parser.getTok().is(AsmToken::Colon)) {
4515 Parser.Lex(); // Eat the ':'.
4516 E = Parser.getTok().getLoc();
4517 SMLoc AlignmentLoc = Tok.getLoc();
4520 if (getParser().parseExpression(Expr))
4523 // The expression has to be a constant. Memory references with relocations
4524 // don't come through here, as they use the <label> forms of the relevant
4526 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4528 return Error (E, "constant expression expected");
4531 switch (CE->getValue()) {
4534 "alignment specifier must be 16, 32, 64, 128, or 256 bits");
4535 case 16: Align = 2; break;
4536 case 32: Align = 4; break;
4537 case 64: Align = 8; break;
4538 case 128: Align = 16; break;
4539 case 256: Align = 32; break;
4542 // Now we should have the closing ']'
4543 if (Parser.getTok().isNot(AsmToken::RBrac))
4544 return Error(Parser.getTok().getLoc(), "']' expected");
4545 E = Parser.getTok().getEndLoc();
4546 Parser.Lex(); // Eat right bracket token.
4548 // Don't worry about range checking the value here. That's handled by
4549 // the is*() predicates.
4550 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0,
4551 ARM_AM::no_shift, 0, Align,
4552 false, S, E, AlignmentLoc));
4554 // If there's a pre-indexing writeback marker, '!', just add it as a token
4556 if (Parser.getTok().is(AsmToken::Exclaim)) {
4557 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4558 Parser.Lex(); // Eat the '!'.
4564 // If we have a '#', it's an immediate offset, else assume it's a register
4565 // offset. Be friendly and also accept a plain integer (without a leading
4566 // hash) for gas compatibility.
4567 if (Parser.getTok().is(AsmToken::Hash) ||
4568 Parser.getTok().is(AsmToken::Dollar) ||
4569 Parser.getTok().is(AsmToken::Integer)) {
4570 if (Parser.getTok().isNot(AsmToken::Integer))
4571 Parser.Lex(); // Eat '#' or '$'.
4572 E = Parser.getTok().getLoc();
4574 bool isNegative = getParser().getTok().is(AsmToken::Minus);
4575 const MCExpr *Offset;
4576 if (getParser().parseExpression(Offset))
4579 // The expression has to be a constant. Memory references with relocations
4580 // don't come through here, as they use the <label> forms of the relevant
4582 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4584 return Error (E, "constant expression expected");
4586 // If the constant was #-0, represent it as INT32_MIN.
4587 int32_t Val = CE->getValue();
4588 if (isNegative && Val == 0)
4589 CE = MCConstantExpr::Create(INT32_MIN, getContext());
4591 // Now we should have the closing ']'
4592 if (Parser.getTok().isNot(AsmToken::RBrac))
4593 return Error(Parser.getTok().getLoc(), "']' expected");
4594 E = Parser.getTok().getEndLoc();
4595 Parser.Lex(); // Eat right bracket token.
4597 // Don't worry about range checking the value here. That's handled by
4598 // the is*() predicates.
4599 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, CE, 0,
4600 ARM_AM::no_shift, 0, 0,
4603 // If there's a pre-indexing writeback marker, '!', just add it as a token
4605 if (Parser.getTok().is(AsmToken::Exclaim)) {
4606 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4607 Parser.Lex(); // Eat the '!'.
4613 // The register offset is optionally preceded by a '+' or '-'
4614 bool isNegative = false;
4615 if (Parser.getTok().is(AsmToken::Minus)) {
4617 Parser.Lex(); // Eat the '-'.
4618 } else if (Parser.getTok().is(AsmToken::Plus)) {
4620 Parser.Lex(); // Eat the '+'.
4623 E = Parser.getTok().getLoc();
4624 int OffsetRegNum = tryParseRegister();
4625 if (OffsetRegNum == -1)
4626 return Error(E, "register expected");
4628 // If there's a shift operator, handle it.
4629 ARM_AM::ShiftOpc ShiftType = ARM_AM::no_shift;
4630 unsigned ShiftImm = 0;
4631 if (Parser.getTok().is(AsmToken::Comma)) {
4632 Parser.Lex(); // Eat the ','.
4633 if (parseMemRegOffsetShift(ShiftType, ShiftImm))
4637 // Now we should have the closing ']'
4638 if (Parser.getTok().isNot(AsmToken::RBrac))
4639 return Error(Parser.getTok().getLoc(), "']' expected");
4640 E = Parser.getTok().getEndLoc();
4641 Parser.Lex(); // Eat right bracket token.
4643 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, OffsetRegNum,
4644 ShiftType, ShiftImm, 0, isNegative,
4647 // If there's a pre-indexing writeback marker, '!', just add it as a token
4649 if (Parser.getTok().is(AsmToken::Exclaim)) {
4650 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4651 Parser.Lex(); // Eat the '!'.
4657 /// parseMemRegOffsetShift - one of these two:
4658 /// ( lsl | lsr | asr | ror ) , # shift_amount
4660 /// return true if it parses a shift otherwise it returns false.
4661 bool ARMAsmParser::parseMemRegOffsetShift(ARM_AM::ShiftOpc &St,
4663 SMLoc Loc = Parser.getTok().getLoc();
4664 const AsmToken &Tok = Parser.getTok();
4665 if (Tok.isNot(AsmToken::Identifier))
4667 StringRef ShiftName = Tok.getString();
4668 if (ShiftName == "lsl" || ShiftName == "LSL" ||
4669 ShiftName == "asl" || ShiftName == "ASL")
4671 else if (ShiftName == "lsr" || ShiftName == "LSR")
4673 else if (ShiftName == "asr" || ShiftName == "ASR")
4675 else if (ShiftName == "ror" || ShiftName == "ROR")
4677 else if (ShiftName == "rrx" || ShiftName == "RRX")
4680 return Error(Loc, "illegal shift operator");
4681 Parser.Lex(); // Eat shift type token.
4683 // rrx stands alone.
4685 if (St != ARM_AM::rrx) {
4686 Loc = Parser.getTok().getLoc();
4687 // A '#' and a shift amount.
4688 const AsmToken &HashTok = Parser.getTok();
4689 if (HashTok.isNot(AsmToken::Hash) &&
4690 HashTok.isNot(AsmToken::Dollar))
4691 return Error(HashTok.getLoc(), "'#' expected");
4692 Parser.Lex(); // Eat hash token.
4695 if (getParser().parseExpression(Expr))
4697 // Range check the immediate.
4698 // lsl, ror: 0 <= imm <= 31
4699 // lsr, asr: 0 <= imm <= 32
4700 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4702 return Error(Loc, "shift amount must be an immediate");
4703 int64_t Imm = CE->getValue();
4705 ((St == ARM_AM::lsl || St == ARM_AM::ror) && Imm > 31) ||
4706 ((St == ARM_AM::lsr || St == ARM_AM::asr) && Imm > 32))
4707 return Error(Loc, "immediate shift value out of range");
4708 // If <ShiftTy> #0, turn it into a no_shift.
4711 // For consistency, treat lsr #32 and asr #32 as having immediate value 0.
4720 /// parseFPImm - A floating point immediate expression operand.
4721 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4722 parseFPImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4723 // Anything that can accept a floating point constant as an operand
4724 // needs to go through here, as the regular parseExpression is
4727 // This routine still creates a generic Immediate operand, containing
4728 // a bitcast of the 64-bit floating point value. The various operands
4729 // that accept floats can check whether the value is valid for them
4730 // via the standard is*() predicates.
4732 SMLoc S = Parser.getTok().getLoc();
4734 if (Parser.getTok().isNot(AsmToken::Hash) &&
4735 Parser.getTok().isNot(AsmToken::Dollar))
4736 return MatchOperand_NoMatch;
4738 // Disambiguate the VMOV forms that can accept an FP immediate.
4739 // vmov.f32 <sreg>, #imm
4740 // vmov.f64 <dreg>, #imm
4741 // vmov.f32 <dreg>, #imm @ vector f32x2
4742 // vmov.f32 <qreg>, #imm @ vector f32x4
4744 // There are also the NEON VMOV instructions which expect an
4745 // integer constant. Make sure we don't try to parse an FPImm
4747 // vmov.i{8|16|32|64} <dreg|qreg>, #imm
4748 ARMOperand *TyOp = static_cast<ARMOperand*>(Operands[2]);
4749 bool isVmovf = TyOp->isToken() && (TyOp->getToken() == ".f32" ||
4750 TyOp->getToken() == ".f64");
4751 ARMOperand *Mnemonic = static_cast<ARMOperand*>(Operands[0]);
4752 bool isFconst = Mnemonic->isToken() && (Mnemonic->getToken() == "fconstd" ||
4753 Mnemonic->getToken() == "fconsts");
4754 if (!(isVmovf || isFconst))
4755 return MatchOperand_NoMatch;
4757 Parser.Lex(); // Eat '#' or '$'.
4759 // Handle negation, as that still comes through as a separate token.
4760 bool isNegative = false;
4761 if (Parser.getTok().is(AsmToken::Minus)) {
4765 const AsmToken &Tok = Parser.getTok();
4766 SMLoc Loc = Tok.getLoc();
4767 if (Tok.is(AsmToken::Real) && isVmovf) {
4768 APFloat RealVal(APFloat::IEEEsingle, Tok.getString());
4769 uint64_t IntVal = RealVal.bitcastToAPInt().getZExtValue();
4770 // If we had a '-' in front, toggle the sign bit.
4771 IntVal ^= (uint64_t)isNegative << 31;
4772 Parser.Lex(); // Eat the token.
4773 Operands.push_back(ARMOperand::CreateImm(
4774 MCConstantExpr::Create(IntVal, getContext()),
4775 S, Parser.getTok().getLoc()));
4776 return MatchOperand_Success;
4778 // Also handle plain integers. Instructions which allow floating point
4779 // immediates also allow a raw encoded 8-bit value.
4780 if (Tok.is(AsmToken::Integer) && isFconst) {
4781 int64_t Val = Tok.getIntVal();
4782 Parser.Lex(); // Eat the token.
4783 if (Val > 255 || Val < 0) {
4784 Error(Loc, "encoded floating point value out of range");
4785 return MatchOperand_ParseFail;
4787 float RealVal = ARM_AM::getFPImmFloat(Val);
4788 Val = APFloat(RealVal).bitcastToAPInt().getZExtValue();
4790 Operands.push_back(ARMOperand::CreateImm(
4791 MCConstantExpr::Create(Val, getContext()), S,
4792 Parser.getTok().getLoc()));
4793 return MatchOperand_Success;
4796 Error(Loc, "invalid floating point immediate");
4797 return MatchOperand_ParseFail;
4800 /// Parse a arm instruction operand. For now this parses the operand regardless
4801 /// of the mnemonic.
4802 bool ARMAsmParser::parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
4803 StringRef Mnemonic) {
4806 // Check if the current operand has a custom associated parser, if so, try to
4807 // custom parse the operand, or fallback to the general approach.
4808 OperandMatchResultTy ResTy = MatchOperandParserImpl(Operands, Mnemonic);
4809 if (ResTy == MatchOperand_Success)
4811 // If there wasn't a custom match, try the generic matcher below. Otherwise,
4812 // there was a match, but an error occurred, in which case, just return that
4813 // the operand parsing failed.
4814 if (ResTy == MatchOperand_ParseFail)
4817 switch (getLexer().getKind()) {
4819 Error(Parser.getTok().getLoc(), "unexpected token in operand");
4821 case AsmToken::Identifier: {
4822 // If we've seen a branch mnemonic, the next operand must be a label. This
4823 // is true even if the label is a register name. So "br r1" means branch to
4825 bool ExpectLabel = Mnemonic == "b" || Mnemonic == "bl";
4827 if (!tryParseRegisterWithWriteBack(Operands))
4829 int Res = tryParseShiftRegister(Operands);
4830 if (Res == 0) // success
4832 else if (Res == -1) // irrecoverable error
4834 // If this is VMRS, check for the apsr_nzcv operand.
4835 if (Mnemonic == "vmrs" &&
4836 Parser.getTok().getString().equals_lower("apsr_nzcv")) {
4837 S = Parser.getTok().getLoc();
4839 Operands.push_back(ARMOperand::CreateToken("APSR_nzcv", S));
4844 // Fall though for the Identifier case that is not a register or a
4847 case AsmToken::LParen: // parenthesized expressions like (_strcmp-4)
4848 case AsmToken::Integer: // things like 1f and 2b as a branch targets
4849 case AsmToken::String: // quoted label names.
4850 case AsmToken::Dot: { // . as a branch target
4851 // This was not a register so parse other operands that start with an
4852 // identifier (like labels) as expressions and create them as immediates.
4853 const MCExpr *IdVal;
4854 S = Parser.getTok().getLoc();
4855 if (getParser().parseExpression(IdVal))
4857 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4858 Operands.push_back(ARMOperand::CreateImm(IdVal, S, E));
4861 case AsmToken::LBrac:
4862 return parseMemory(Operands);
4863 case AsmToken::LCurly:
4864 return parseRegisterList(Operands);
4865 case AsmToken::Dollar:
4866 case AsmToken::Hash: {
4867 // #42 -> immediate.
4868 S = Parser.getTok().getLoc();
4871 if (Parser.getTok().isNot(AsmToken::Colon)) {
4872 bool isNegative = Parser.getTok().is(AsmToken::Minus);
4873 const MCExpr *ImmVal;
4874 if (getParser().parseExpression(ImmVal))
4876 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ImmVal);
4878 int32_t Val = CE->getValue();
4879 if (isNegative && Val == 0)
4880 ImmVal = MCConstantExpr::Create(INT32_MIN, getContext());
4882 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4883 Operands.push_back(ARMOperand::CreateImm(ImmVal, S, E));
4885 // There can be a trailing '!' on operands that we want as a separate
4886 // '!' Token operand. Handle that here. For example, the compatibility
4887 // alias for 'srsdb sp!, #imm' is 'srsdb #imm!'.
4888 if (Parser.getTok().is(AsmToken::Exclaim)) {
4889 Operands.push_back(ARMOperand::CreateToken(Parser.getTok().getString(),
4890 Parser.getTok().getLoc()));
4891 Parser.Lex(); // Eat exclaim token
4895 // w/ a ':' after the '#', it's just like a plain ':'.
4898 case AsmToken::Colon: {
4899 // ":lower16:" and ":upper16:" expression prefixes
4900 // FIXME: Check it's an expression prefix,
4901 // e.g. (FOO - :lower16:BAR) isn't legal.
4902 ARMMCExpr::VariantKind RefKind;
4903 if (parsePrefix(RefKind))
4906 const MCExpr *SubExprVal;
4907 if (getParser().parseExpression(SubExprVal))
4910 const MCExpr *ExprVal = ARMMCExpr::Create(RefKind, SubExprVal,
4912 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4913 Operands.push_back(ARMOperand::CreateImm(ExprVal, S, E));
4916 case AsmToken::Equal: {
4917 if (Mnemonic != "ldr") // only parse for ldr pseudo (e.g. ldr r0, =val)
4918 return Error(Parser.getTok().getLoc(), "unexpected token in operand");
4920 Parser.Lex(); // Eat '='
4921 const MCExpr *SubExprVal;
4922 if (getParser().parseExpression(SubExprVal))
4924 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4926 const MCExpr *CPLoc = getTargetStreamer().addConstantPoolEntry(SubExprVal);
4927 Operands.push_back(ARMOperand::CreateImm(CPLoc, S, E));
4933 // parsePrefix - Parse ARM 16-bit relocations expression prefix, i.e.
4934 // :lower16: and :upper16:.
4935 bool ARMAsmParser::parsePrefix(ARMMCExpr::VariantKind &RefKind) {
4936 RefKind = ARMMCExpr::VK_ARM_None;
4938 // consume an optional '#' (GNU compatibility)
4939 if (getLexer().is(AsmToken::Hash))
4942 // :lower16: and :upper16: modifiers
4943 assert(getLexer().is(AsmToken::Colon) && "expected a :");
4944 Parser.Lex(); // Eat ':'
4946 if (getLexer().isNot(AsmToken::Identifier)) {
4947 Error(Parser.getTok().getLoc(), "expected prefix identifier in operand");
4951 StringRef IDVal = Parser.getTok().getIdentifier();
4952 if (IDVal == "lower16") {
4953 RefKind = ARMMCExpr::VK_ARM_LO16;
4954 } else if (IDVal == "upper16") {
4955 RefKind = ARMMCExpr::VK_ARM_HI16;
4957 Error(Parser.getTok().getLoc(), "unexpected prefix in operand");
4962 if (getLexer().isNot(AsmToken::Colon)) {
4963 Error(Parser.getTok().getLoc(), "unexpected token after prefix");
4966 Parser.Lex(); // Eat the last ':'
4970 /// \brief Given a mnemonic, split out possible predication code and carry
4971 /// setting letters to form a canonical mnemonic and flags.
4973 // FIXME: Would be nice to autogen this.
4974 // FIXME: This is a bit of a maze of special cases.
4975 StringRef ARMAsmParser::splitMnemonic(StringRef Mnemonic,
4976 unsigned &PredicationCode,
4978 unsigned &ProcessorIMod,
4979 StringRef &ITMask) {
4980 PredicationCode = ARMCC::AL;
4981 CarrySetting = false;
4984 // Ignore some mnemonics we know aren't predicated forms.
4986 // FIXME: Would be nice to autogen this.
4987 if ((Mnemonic == "movs" && isThumb()) ||
4988 Mnemonic == "teq" || Mnemonic == "vceq" || Mnemonic == "svc" ||
4989 Mnemonic == "mls" || Mnemonic == "smmls" || Mnemonic == "vcls" ||
4990 Mnemonic == "vmls" || Mnemonic == "vnmls" || Mnemonic == "vacge" ||
4991 Mnemonic == "vcge" || Mnemonic == "vclt" || Mnemonic == "vacgt" ||
4992 Mnemonic == "vaclt" || Mnemonic == "vacle" || Mnemonic == "hlt" ||
4993 Mnemonic == "vcgt" || Mnemonic == "vcle" || Mnemonic == "smlal" ||
4994 Mnemonic == "umaal" || Mnemonic == "umlal" || Mnemonic == "vabal" ||
4995 Mnemonic == "vmlal" || Mnemonic == "vpadal" || Mnemonic == "vqdmlal" ||
4996 Mnemonic == "fmuls" || Mnemonic == "vmaxnm" || Mnemonic == "vminnm" ||
4997 Mnemonic == "vcvta" || Mnemonic == "vcvtn" || Mnemonic == "vcvtp" ||
4998 Mnemonic == "vcvtm" || Mnemonic == "vrinta" || Mnemonic == "vrintn" ||
4999 Mnemonic == "vrintp" || Mnemonic == "vrintm" || Mnemonic.startswith("vsel"))
5002 // First, split out any predication code. Ignore mnemonics we know aren't
5003 // predicated but do have a carry-set and so weren't caught above.
5004 if (Mnemonic != "adcs" && Mnemonic != "bics" && Mnemonic != "movs" &&
5005 Mnemonic != "muls" && Mnemonic != "smlals" && Mnemonic != "smulls" &&
5006 Mnemonic != "umlals" && Mnemonic != "umulls" && Mnemonic != "lsls" &&
5007 Mnemonic != "sbcs" && Mnemonic != "rscs") {
5008 unsigned CC = StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2))
5009 .Case("eq", ARMCC::EQ)
5010 .Case("ne", ARMCC::NE)
5011 .Case("hs", ARMCC::HS)
5012 .Case("cs", ARMCC::HS)
5013 .Case("lo", ARMCC::LO)
5014 .Case("cc", ARMCC::LO)
5015 .Case("mi", ARMCC::MI)
5016 .Case("pl", ARMCC::PL)
5017 .Case("vs", ARMCC::VS)
5018 .Case("vc", ARMCC::VC)
5019 .Case("hi", ARMCC::HI)
5020 .Case("ls", ARMCC::LS)
5021 .Case("ge", ARMCC::GE)
5022 .Case("lt", ARMCC::LT)
5023 .Case("gt", ARMCC::GT)
5024 .Case("le", ARMCC::LE)
5025 .Case("al", ARMCC::AL)
5028 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 2);
5029 PredicationCode = CC;
5033 // Next, determine if we have a carry setting bit. We explicitly ignore all
5034 // the instructions we know end in 's'.
5035 if (Mnemonic.endswith("s") &&
5036 !(Mnemonic == "cps" || Mnemonic == "mls" ||
5037 Mnemonic == "mrs" || Mnemonic == "smmls" || Mnemonic == "vabs" ||
5038 Mnemonic == "vcls" || Mnemonic == "vmls" || Mnemonic == "vmrs" ||
5039 Mnemonic == "vnmls" || Mnemonic == "vqabs" || Mnemonic == "vrecps" ||
5040 Mnemonic == "vrsqrts" || Mnemonic == "srs" || Mnemonic == "flds" ||
5041 Mnemonic == "fmrs" || Mnemonic == "fsqrts" || Mnemonic == "fsubs" ||
5042 Mnemonic == "fsts" || Mnemonic == "fcpys" || Mnemonic == "fdivs" ||
5043 Mnemonic == "fmuls" || Mnemonic == "fcmps" || Mnemonic == "fcmpzs" ||
5044 Mnemonic == "vfms" || Mnemonic == "vfnms" || Mnemonic == "fconsts" ||
5045 (Mnemonic == "movs" && isThumb()))) {
5046 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1);
5047 CarrySetting = true;
5050 // The "cps" instruction can have a interrupt mode operand which is glued into
5051 // the mnemonic. Check if this is the case, split it and parse the imod op
5052 if (Mnemonic.startswith("cps")) {
5053 // Split out any imod code.
5055 StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2, 2))
5056 .Case("ie", ARM_PROC::IE)
5057 .Case("id", ARM_PROC::ID)
5060 Mnemonic = Mnemonic.slice(0, Mnemonic.size()-2);
5061 ProcessorIMod = IMod;
5065 // The "it" instruction has the condition mask on the end of the mnemonic.
5066 if (Mnemonic.startswith("it")) {
5067 ITMask = Mnemonic.slice(2, Mnemonic.size());
5068 Mnemonic = Mnemonic.slice(0, 2);
5074 /// \brief Given a canonical mnemonic, determine if the instruction ever allows
5075 /// inclusion of carry set or predication code operands.
5077 // FIXME: It would be nice to autogen this.
5079 getMnemonicAcceptInfo(StringRef Mnemonic, StringRef FullInst,
5080 bool &CanAcceptCarrySet, bool &CanAcceptPredicationCode) {
5081 if (Mnemonic == "and" || Mnemonic == "lsl" || Mnemonic == "lsr" ||
5082 Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" ||
5083 Mnemonic == "add" || Mnemonic == "adc" ||
5084 Mnemonic == "mul" || Mnemonic == "bic" || Mnemonic == "asr" ||
5085 Mnemonic == "orr" || Mnemonic == "mvn" ||
5086 Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
5087 Mnemonic == "sbc" || Mnemonic == "eor" || Mnemonic == "neg" ||
5088 Mnemonic == "vfm" || Mnemonic == "vfnm" ||
5089 (!isThumb() && (Mnemonic == "smull" || Mnemonic == "mov" ||
5090 Mnemonic == "mla" || Mnemonic == "smlal" ||
5091 Mnemonic == "umlal" || Mnemonic == "umull"))) {
5092 CanAcceptCarrySet = true;
5094 CanAcceptCarrySet = false;
5096 if (Mnemonic == "bkpt" || Mnemonic == "cbnz" || Mnemonic == "setend" ||
5097 Mnemonic == "cps" || Mnemonic == "it" || Mnemonic == "cbz" ||
5098 Mnemonic == "trap" || Mnemonic == "hlt" || Mnemonic.startswith("crc32") ||
5099 Mnemonic.startswith("cps") || Mnemonic.startswith("vsel") ||
5100 Mnemonic == "vmaxnm" || Mnemonic == "vminnm" || Mnemonic == "vcvta" ||
5101 Mnemonic == "vcvtn" || Mnemonic == "vcvtp" || Mnemonic == "vcvtm" ||
5102 Mnemonic == "vrinta" || Mnemonic == "vrintn" || Mnemonic == "vrintp" ||
5103 Mnemonic == "vrintm" || Mnemonic.startswith("aes") ||
5104 Mnemonic.startswith("sha1") || Mnemonic.startswith("sha256") ||
5105 (FullInst.startswith("vmull") && FullInst.endswith(".p64"))) {
5106 // These mnemonics are never predicable
5107 CanAcceptPredicationCode = false;
5108 } else if (!isThumb()) {
5109 // Some instructions are only predicable in Thumb mode
5110 CanAcceptPredicationCode
5111 = Mnemonic != "cdp2" && Mnemonic != "clrex" && Mnemonic != "mcr2" &&
5112 Mnemonic != "mcrr2" && Mnemonic != "mrc2" && Mnemonic != "mrrc2" &&
5113 Mnemonic != "dmb" && Mnemonic != "dsb" && Mnemonic != "isb" &&
5114 Mnemonic != "pld" && Mnemonic != "pli" && Mnemonic != "pldw" &&
5115 Mnemonic != "ldc2" && Mnemonic != "ldc2l" &&
5116 Mnemonic != "stc2" && Mnemonic != "stc2l" &&
5117 !Mnemonic.startswith("rfe") && !Mnemonic.startswith("srs");
5118 } else if (isThumbOne()) {
5120 CanAcceptPredicationCode = Mnemonic != "movs";
5122 CanAcceptPredicationCode = Mnemonic != "nop" && Mnemonic != "movs";
5124 CanAcceptPredicationCode = true;
5127 bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
5128 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5129 // FIXME: This is all horribly hacky. We really need a better way to deal
5130 // with optional operands like this in the matcher table.
5132 // The 'mov' mnemonic is special. One variant has a cc_out operand, while
5133 // another does not. Specifically, the MOVW instruction does not. So we
5134 // special case it here and remove the defaulted (non-setting) cc_out
5135 // operand if that's the instruction we're trying to match.
5137 // We do this as post-processing of the explicit operands rather than just
5138 // conditionally adding the cc_out in the first place because we need
5139 // to check the type of the parsed immediate operand.
5140 if (Mnemonic == "mov" && Operands.size() > 4 && !isThumb() &&
5141 !static_cast<ARMOperand*>(Operands[4])->isARMSOImm() &&
5142 static_cast<ARMOperand*>(Operands[4])->isImm0_65535Expr() &&
5143 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
5146 // Register-register 'add' for thumb does not have a cc_out operand
5147 // when there are only two register operands.
5148 if (isThumb() && Mnemonic == "add" && Operands.size() == 5 &&
5149 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5150 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5151 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
5153 // Register-register 'add' for thumb does not have a cc_out operand
5154 // when it's an ADD Rdm, SP, {Rdm|#imm0_255} instruction. We do
5155 // have to check the immediate range here since Thumb2 has a variant
5156 // that can handle a different range and has a cc_out operand.
5157 if (((isThumb() && Mnemonic == "add") ||
5158 (isThumbTwo() && Mnemonic == "sub")) &&
5159 Operands.size() == 6 &&
5160 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5161 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5162 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::SP &&
5163 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5164 ((Mnemonic == "add" &&static_cast<ARMOperand*>(Operands[5])->isReg()) ||
5165 static_cast<ARMOperand*>(Operands[5])->isImm0_1020s4()))
5167 // For Thumb2, add/sub immediate does not have a cc_out operand for the
5168 // imm0_4095 variant. That's the least-preferred variant when
5169 // selecting via the generic "add" mnemonic, so to know that we
5170 // should remove the cc_out operand, we have to explicitly check that
5171 // it's not one of the other variants. Ugh.
5172 if (isThumbTwo() && (Mnemonic == "add" || Mnemonic == "sub") &&
5173 Operands.size() == 6 &&
5174 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5175 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5176 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5177 // Nest conditions rather than one big 'if' statement for readability.
5179 // If both registers are low, we're in an IT block, and the immediate is
5180 // in range, we should use encoding T1 instead, which has a cc_out.
5182 isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
5183 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) &&
5184 static_cast<ARMOperand*>(Operands[5])->isImm0_7())
5186 // Check against T3. If the second register is the PC, this is an
5187 // alternate form of ADR, which uses encoding T4, so check for that too.
5188 if (static_cast<ARMOperand*>(Operands[4])->getReg() != ARM::PC &&
5189 static_cast<ARMOperand*>(Operands[5])->isT2SOImm())
5192 // Otherwise, we use encoding T4, which does not have a cc_out
5197 // The thumb2 multiply instruction doesn't have a CCOut register, so
5198 // if we have a "mul" mnemonic in Thumb mode, check if we'll be able to
5199 // use the 16-bit encoding or not.
5200 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 6 &&
5201 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5202 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5203 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5204 static_cast<ARMOperand*>(Operands[5])->isReg() &&
5205 // If the registers aren't low regs, the destination reg isn't the
5206 // same as one of the source regs, or the cc_out operand is zero
5207 // outside of an IT block, we have to use the 32-bit encoding, so
5208 // remove the cc_out operand.
5209 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
5210 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
5211 !isARMLowRegister(static_cast<ARMOperand*>(Operands[5])->getReg()) ||
5213 (static_cast<ARMOperand*>(Operands[3])->getReg() !=
5214 static_cast<ARMOperand*>(Operands[5])->getReg() &&
5215 static_cast<ARMOperand*>(Operands[3])->getReg() !=
5216 static_cast<ARMOperand*>(Operands[4])->getReg())))
5219 // Also check the 'mul' syntax variant that doesn't specify an explicit
5220 // destination register.
5221 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 5 &&
5222 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5223 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5224 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5225 // If the registers aren't low regs or the cc_out operand is zero
5226 // outside of an IT block, we have to use the 32-bit encoding, so
5227 // remove the cc_out operand.
5228 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
5229 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
5235 // Register-register 'add/sub' for thumb does not have a cc_out operand
5236 // when it's an ADD/SUB SP, #imm. Be lenient on count since there's also
5237 // the "add/sub SP, SP, #imm" version. If the follow-up operands aren't
5238 // right, this will result in better diagnostics (which operand is off)
5240 if (isThumb() && (Mnemonic == "add" || Mnemonic == "sub") &&
5241 (Operands.size() == 5 || Operands.size() == 6) &&
5242 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5243 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::SP &&
5244 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5245 (static_cast<ARMOperand*>(Operands[4])->isImm() ||
5246 (Operands.size() == 6 &&
5247 static_cast<ARMOperand*>(Operands[5])->isImm())))
5253 bool ARMAsmParser::shouldOmitPredicateOperand(
5254 StringRef Mnemonic, SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
5255 // VRINT{Z, R, X} have a predicate operand in VFP, but not in NEON
5256 unsigned RegIdx = 3;
5257 if ((Mnemonic == "vrintz" || Mnemonic == "vrintx" || Mnemonic == "vrintr") &&
5258 static_cast<ARMOperand *>(Operands[2])->getToken() == ".f32") {
5259 if (static_cast<ARMOperand *>(Operands[3])->isToken() &&
5260 static_cast<ARMOperand *>(Operands[3])->getToken() == ".f32")
5263 if (static_cast<ARMOperand *>(Operands[RegIdx])->isReg() &&
5264 (ARMMCRegisterClasses[ARM::DPRRegClassID]
5265 .contains(static_cast<ARMOperand *>(Operands[RegIdx])->getReg()) ||
5266 ARMMCRegisterClasses[ARM::QPRRegClassID]
5267 .contains(static_cast<ARMOperand *>(Operands[RegIdx])->getReg())))
5273 static bool isDataTypeToken(StringRef Tok) {
5274 return Tok == ".8" || Tok == ".16" || Tok == ".32" || Tok == ".64" ||
5275 Tok == ".i8" || Tok == ".i16" || Tok == ".i32" || Tok == ".i64" ||
5276 Tok == ".u8" || Tok == ".u16" || Tok == ".u32" || Tok == ".u64" ||
5277 Tok == ".s8" || Tok == ".s16" || Tok == ".s32" || Tok == ".s64" ||
5278 Tok == ".p8" || Tok == ".p16" || Tok == ".f32" || Tok == ".f64" ||
5279 Tok == ".f" || Tok == ".d";
5282 // FIXME: This bit should probably be handled via an explicit match class
5283 // in the .td files that matches the suffix instead of having it be
5284 // a literal string token the way it is now.
5285 static bool doesIgnoreDataTypeSuffix(StringRef Mnemonic, StringRef DT) {
5286 return Mnemonic.startswith("vldm") || Mnemonic.startswith("vstm");
5288 static void applyMnemonicAliases(StringRef &Mnemonic, unsigned Features,
5289 unsigned VariantID);
5291 static bool RequiresVFPRegListValidation(StringRef Inst,
5292 bool &AcceptSinglePrecisionOnly,
5293 bool &AcceptDoublePrecisionOnly) {
5294 if (Inst.size() < 7)
5297 if (Inst.startswith("fldm") || Inst.startswith("fstm")) {
5298 StringRef AddressingMode = Inst.substr(4, 2);
5299 if (AddressingMode == "ia" || AddressingMode == "db" ||
5300 AddressingMode == "ea" || AddressingMode == "fd") {
5301 AcceptSinglePrecisionOnly = Inst[6] == 's';
5302 AcceptDoublePrecisionOnly = Inst[6] == 'd' || Inst[6] == 'x';
5310 /// Parse an arm instruction mnemonic followed by its operands.
5311 bool ARMAsmParser::ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
5313 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5314 // FIXME: Can this be done via tablegen in some fashion?
5315 bool RequireVFPRegisterListCheck;
5316 bool AcceptSinglePrecisionOnly;
5317 bool AcceptDoublePrecisionOnly;
5318 RequireVFPRegisterListCheck =
5319 RequiresVFPRegListValidation(Name, AcceptSinglePrecisionOnly,
5320 AcceptDoublePrecisionOnly);
5322 // Apply mnemonic aliases before doing anything else, as the destination
5323 // mnemonic may include suffices and we want to handle them normally.
5324 // The generic tblgen'erated code does this later, at the start of
5325 // MatchInstructionImpl(), but that's too late for aliases that include
5326 // any sort of suffix.
5327 unsigned AvailableFeatures = getAvailableFeatures();
5328 unsigned AssemblerDialect = getParser().getAssemblerDialect();
5329 applyMnemonicAliases(Name, AvailableFeatures, AssemblerDialect);
5331 // First check for the ARM-specific .req directive.
5332 if (Parser.getTok().is(AsmToken::Identifier) &&
5333 Parser.getTok().getIdentifier() == ".req") {
5334 parseDirectiveReq(Name, NameLoc);
5335 // We always return 'error' for this, as we're done with this
5336 // statement and don't need to match the 'instruction."
5340 // Create the leading tokens for the mnemonic, split by '.' characters.
5341 size_t Start = 0, Next = Name.find('.');
5342 StringRef Mnemonic = Name.slice(Start, Next);
5344 // Split out the predication code and carry setting flag from the mnemonic.
5345 unsigned PredicationCode;
5346 unsigned ProcessorIMod;
5349 Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
5350 ProcessorIMod, ITMask);
5352 // In Thumb1, only the branch (B) instruction can be predicated.
5353 if (isThumbOne() && PredicationCode != ARMCC::AL && Mnemonic != "b") {
5354 Parser.eatToEndOfStatement();
5355 return Error(NameLoc, "conditional execution not supported in Thumb1");
5358 Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
5360 // Handle the IT instruction ITMask. Convert it to a bitmask. This
5361 // is the mask as it will be for the IT encoding if the conditional
5362 // encoding has a '1' as it's bit0 (i.e. 't' ==> '1'). In the case
5363 // where the conditional bit0 is zero, the instruction post-processing
5364 // will adjust the mask accordingly.
5365 if (Mnemonic == "it") {
5366 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + 2);
5367 if (ITMask.size() > 3) {
5368 Parser.eatToEndOfStatement();
5369 return Error(Loc, "too many conditions on IT instruction");
5372 for (unsigned i = ITMask.size(); i != 0; --i) {
5373 char pos = ITMask[i - 1];
5374 if (pos != 't' && pos != 'e') {
5375 Parser.eatToEndOfStatement();
5376 return Error(Loc, "illegal IT block condition mask '" + ITMask + "'");
5379 if (ITMask[i - 1] == 't')
5382 Operands.push_back(ARMOperand::CreateITMask(Mask, Loc));
5385 // FIXME: This is all a pretty gross hack. We should automatically handle
5386 // optional operands like this via tblgen.
5388 // Next, add the CCOut and ConditionCode operands, if needed.
5390 // For mnemonics which can ever incorporate a carry setting bit or predication
5391 // code, our matching model involves us always generating CCOut and
5392 // ConditionCode operands to match the mnemonic "as written" and then we let
5393 // the matcher deal with finding the right instruction or generating an
5394 // appropriate error.
5395 bool CanAcceptCarrySet, CanAcceptPredicationCode;
5396 getMnemonicAcceptInfo(Mnemonic, Name, CanAcceptCarrySet, CanAcceptPredicationCode);
5398 // If we had a carry-set on an instruction that can't do that, issue an
5400 if (!CanAcceptCarrySet && CarrySetting) {
5401 Parser.eatToEndOfStatement();
5402 return Error(NameLoc, "instruction '" + Mnemonic +
5403 "' can not set flags, but 's' suffix specified");
5405 // If we had a predication code on an instruction that can't do that, issue an
5407 if (!CanAcceptPredicationCode && PredicationCode != ARMCC::AL) {
5408 Parser.eatToEndOfStatement();
5409 return Error(NameLoc, "instruction '" + Mnemonic +
5410 "' is not predicable, but condition code specified");
5413 // Add the carry setting operand, if necessary.
5414 if (CanAcceptCarrySet) {
5415 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size());
5416 Operands.push_back(ARMOperand::CreateCCOut(CarrySetting ? ARM::CPSR : 0,
5420 // Add the predication code operand, if necessary.
5421 if (CanAcceptPredicationCode) {
5422 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size() +
5424 Operands.push_back(ARMOperand::CreateCondCode(
5425 ARMCC::CondCodes(PredicationCode), Loc));
5428 // Add the processor imod operand, if necessary.
5429 if (ProcessorIMod) {
5430 Operands.push_back(ARMOperand::CreateImm(
5431 MCConstantExpr::Create(ProcessorIMod, getContext()),
5435 // Add the remaining tokens in the mnemonic.
5436 while (Next != StringRef::npos) {
5438 Next = Name.find('.', Start + 1);
5439 StringRef ExtraToken = Name.slice(Start, Next);
5441 // Some NEON instructions have an optional datatype suffix that is
5442 // completely ignored. Check for that.
5443 if (isDataTypeToken(ExtraToken) &&
5444 doesIgnoreDataTypeSuffix(Mnemonic, ExtraToken))
5447 // For for ARM mode generate an error if the .n qualifier is used.
5448 if (ExtraToken == ".n" && !isThumb()) {
5449 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5450 Parser.eatToEndOfStatement();
5451 return Error(Loc, "instruction with .n (narrow) qualifier not allowed in "
5455 // The .n qualifier is always discarded as that is what the tables
5456 // and matcher expect. In ARM mode the .w qualifier has no effect,
5457 // so discard it to avoid errors that can be caused by the matcher.
5458 if (ExtraToken != ".n" && (isThumb() || ExtraToken != ".w")) {
5459 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5460 Operands.push_back(ARMOperand::CreateToken(ExtraToken, Loc));
5464 // Read the remaining operands.
5465 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5466 // Read the first operand.
5467 if (parseOperand(Operands, Mnemonic)) {
5468 Parser.eatToEndOfStatement();
5472 while (getLexer().is(AsmToken::Comma)) {
5473 Parser.Lex(); // Eat the comma.
5475 // Parse and remember the operand.
5476 if (parseOperand(Operands, Mnemonic)) {
5477 Parser.eatToEndOfStatement();
5483 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5484 SMLoc Loc = getLexer().getLoc();
5485 Parser.eatToEndOfStatement();
5486 return Error(Loc, "unexpected token in argument list");
5489 Parser.Lex(); // Consume the EndOfStatement
5491 if (RequireVFPRegisterListCheck) {
5492 ARMOperand *Op = static_cast<ARMOperand*>(Operands.back());
5493 if (AcceptSinglePrecisionOnly && !Op->isSPRRegList())
5494 return Error(Op->getStartLoc(),
5495 "VFP/Neon single precision register expected");
5496 if (AcceptDoublePrecisionOnly && !Op->isDPRRegList())
5497 return Error(Op->getStartLoc(),
5498 "VFP/Neon double precision register expected");
5501 // Some instructions, mostly Thumb, have forms for the same mnemonic that
5502 // do and don't have a cc_out optional-def operand. With some spot-checks
5503 // of the operand list, we can figure out which variant we're trying to
5504 // parse and adjust accordingly before actually matching. We shouldn't ever
5505 // try to remove a cc_out operand that was explicitly set on the the
5506 // mnemonic, of course (CarrySetting == true). Reason number #317 the
5507 // table driven matcher doesn't fit well with the ARM instruction set.
5508 if (!CarrySetting && shouldOmitCCOutOperand(Mnemonic, Operands)) {
5509 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5510 Operands.erase(Operands.begin() + 1);
5514 // Some instructions have the same mnemonic, but don't always
5515 // have a predicate. Distinguish them here and delete the
5516 // predicate if needed.
5517 if (shouldOmitPredicateOperand(Mnemonic, Operands)) {
5518 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5519 Operands.erase(Operands.begin() + 1);
5523 // ARM mode 'blx' need special handling, as the register operand version
5524 // is predicable, but the label operand version is not. So, we can't rely
5525 // on the Mnemonic based checking to correctly figure out when to put
5526 // a k_CondCode operand in the list. If we're trying to match the label
5527 // version, remove the k_CondCode operand here.
5528 if (!isThumb() && Mnemonic == "blx" && Operands.size() == 3 &&
5529 static_cast<ARMOperand*>(Operands[2])->isImm()) {
5530 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5531 Operands.erase(Operands.begin() + 1);
5535 // Adjust operands of ldrexd/strexd to MCK_GPRPair.
5536 // ldrexd/strexd require even/odd GPR pair. To enforce this constraint,
5537 // a single GPRPair reg operand is used in the .td file to replace the two
5538 // GPRs. However, when parsing from asm, the two GRPs cannot be automatically
5539 // expressed as a GPRPair, so we have to manually merge them.
5540 // FIXME: We would really like to be able to tablegen'erate this.
5541 if (!isThumb() && Operands.size() > 4 &&
5542 (Mnemonic == "ldrexd" || Mnemonic == "strexd" || Mnemonic == "ldaexd" ||
5543 Mnemonic == "stlexd")) {
5544 bool isLoad = (Mnemonic == "ldrexd" || Mnemonic == "ldaexd");
5545 unsigned Idx = isLoad ? 2 : 3;
5546 ARMOperand* Op1 = static_cast<ARMOperand*>(Operands[Idx]);
5547 ARMOperand* Op2 = static_cast<ARMOperand*>(Operands[Idx+1]);
5549 const MCRegisterClass& MRC = MRI->getRegClass(ARM::GPRRegClassID);
5550 // Adjust only if Op1 and Op2 are GPRs.
5551 if (Op1->isReg() && Op2->isReg() && MRC.contains(Op1->getReg()) &&
5552 MRC.contains(Op2->getReg())) {
5553 unsigned Reg1 = Op1->getReg();
5554 unsigned Reg2 = Op2->getReg();
5555 unsigned Rt = MRI->getEncodingValue(Reg1);
5556 unsigned Rt2 = MRI->getEncodingValue(Reg2);
5558 // Rt2 must be Rt + 1 and Rt must be even.
5559 if (Rt + 1 != Rt2 || (Rt & 1)) {
5560 Error(Op2->getStartLoc(), isLoad ?
5561 "destination operands must be sequential" :
5562 "source operands must be sequential");
5565 unsigned NewReg = MRI->getMatchingSuperReg(Reg1, ARM::gsub_0,
5566 &(MRI->getRegClass(ARM::GPRPairRegClassID)));
5567 Operands.erase(Operands.begin() + Idx, Operands.begin() + Idx + 2);
5568 Operands.insert(Operands.begin() + Idx, ARMOperand::CreateReg(
5569 NewReg, Op1->getStartLoc(), Op2->getEndLoc()));
5575 // GNU Assembler extension (compatibility)
5576 if ((Mnemonic == "ldrd" || Mnemonic == "strd")) {
5577 ARMOperand *Op2 = static_cast<ARMOperand *>(Operands[2]);
5578 ARMOperand *Op3 = static_cast<ARMOperand *>(Operands[3]);
5580 assert(Op2->isReg() && "expected register argument");
5582 unsigned SuperReg = MRI->getMatchingSuperReg(
5583 Op2->getReg(), ARM::gsub_0, &MRI->getRegClass(ARM::GPRPairRegClassID));
5585 assert(SuperReg && "expected register pair");
5587 unsigned PairedReg = MRI->getSubReg(SuperReg, ARM::gsub_1);
5589 Operands.insert(Operands.begin() + 3,
5590 ARMOperand::CreateReg(PairedReg,
5596 // FIXME: As said above, this is all a pretty gross hack. This instruction
5597 // does not fit with other "subs" and tblgen.
5598 // Adjust operands of B9.3.19 SUBS PC, LR, #imm (Thumb2) system instruction
5599 // so the Mnemonic is the original name "subs" and delete the predicate
5600 // operand so it will match the table entry.
5601 if (isThumbTwo() && Mnemonic == "sub" && Operands.size() == 6 &&
5602 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5603 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::PC &&
5604 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5605 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::LR &&
5606 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5607 ARMOperand *Op0 = static_cast<ARMOperand*>(Operands[0]);
5608 Operands.erase(Operands.begin());
5610 Operands.insert(Operands.begin(), ARMOperand::CreateToken(Name, NameLoc));
5612 ARMOperand *Op1 = static_cast<ARMOperand*>(Operands[1]);
5613 Operands.erase(Operands.begin() + 1);
5619 // Validate context-sensitive operand constraints.
5621 // return 'true' if register list contains non-low GPR registers,
5622 // 'false' otherwise. If Reg is in the register list or is HiReg, set
5623 // 'containsReg' to true.
5624 static bool checkLowRegisterList(MCInst Inst, unsigned OpNo, unsigned Reg,
5625 unsigned HiReg, bool &containsReg) {
5626 containsReg = false;
5627 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5628 unsigned OpReg = Inst.getOperand(i).getReg();
5631 // Anything other than a low register isn't legal here.
5632 if (!isARMLowRegister(OpReg) && (!HiReg || OpReg != HiReg))
5638 // Check if the specified regisgter is in the register list of the inst,
5639 // starting at the indicated operand number.
5640 static bool listContainsReg(MCInst &Inst, unsigned OpNo, unsigned Reg) {
5641 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5642 unsigned OpReg = Inst.getOperand(i).getReg();
5649 // Return true if instruction has the interesting property of being
5650 // allowed in IT blocks, but not being predicable.
5651 static bool instIsBreakpoint(const MCInst &Inst) {
5652 return Inst.getOpcode() == ARM::tBKPT ||
5653 Inst.getOpcode() == ARM::BKPT ||
5654 Inst.getOpcode() == ARM::tHLT ||
5655 Inst.getOpcode() == ARM::HLT;
5659 // FIXME: We would really like to be able to tablegen'erate this.
5661 validateInstruction(MCInst &Inst,
5662 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5663 const MCInstrDesc &MCID = MII.get(Inst.getOpcode());
5664 SMLoc Loc = Operands[0]->getStartLoc();
5666 // Check the IT block state first.
5667 // NOTE: BKPT and HLT instructions have the interesting property of being
5668 // allowed in IT blocks, but not being predicable. They just always execute.
5669 if (inITBlock() && !instIsBreakpoint(Inst)) {
5671 if (ITState.FirstCond)
5672 ITState.FirstCond = false;
5674 Bit = (ITState.Mask >> (5 - ITState.CurPosition)) & 1;
5675 // The instruction must be predicable.
5676 if (!MCID.isPredicable())
5677 return Error(Loc, "instructions in IT block must be predicable");
5678 unsigned Cond = Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm();
5679 unsigned ITCond = Bit ? ITState.Cond :
5680 ARMCC::getOppositeCondition(ITState.Cond);
5681 if (Cond != ITCond) {
5682 // Find the condition code Operand to get its SMLoc information.
5684 for (unsigned I = 1; I < Operands.size(); ++I)
5685 if (static_cast<ARMOperand*>(Operands[I])->isCondCode())
5686 CondLoc = Operands[I]->getStartLoc();
5687 return Error(CondLoc, "incorrect condition in IT block; got '" +
5688 StringRef(ARMCondCodeToString(ARMCC::CondCodes(Cond))) +
5689 "', but expected '" +
5690 ARMCondCodeToString(ARMCC::CondCodes(ITCond)) + "'");
5692 // Check for non-'al' condition codes outside of the IT block.
5693 } else if (isThumbTwo() && MCID.isPredicable() &&
5694 Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm() !=
5695 ARMCC::AL && Inst.getOpcode() != ARM::tBcc &&
5696 Inst.getOpcode() != ARM::t2Bcc)
5697 return Error(Loc, "predicated instructions must be in IT block");
5699 const unsigned Opcode = Inst.getOpcode();
5703 case ARM::LDRD_POST: {
5704 const unsigned RtReg = Inst.getOperand(0).getReg();
5707 if (RtReg == ARM::LR)
5708 return Error(Operands[3]->getStartLoc(),
5711 const unsigned Rt = MRI->getEncodingValue(RtReg);
5712 // Rt must be even-numbered.
5714 return Error(Operands[3]->getStartLoc(),
5715 "Rt must be even-numbered");
5717 // Rt2 must be Rt + 1.
5718 const unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5720 return Error(Operands[3]->getStartLoc(),
5721 "destination operands must be sequential");
5723 if (Opcode == ARM::LDRD_PRE || Opcode == ARM::LDRD_POST) {
5724 const unsigned Rn = MRI->getEncodingValue(Inst.getOperand(3).getReg());
5725 // For addressing modes with writeback, the base register needs to be
5726 // different from the destination registers.
5727 if (Rn == Rt || Rn == Rt2)
5728 return Error(Operands[3]->getStartLoc(),
5729 "base register needs to be different from destination "
5736 case ARM::t2LDRD_PRE:
5737 case ARM::t2LDRD_POST: {
5738 // Rt2 must be different from Rt.
5739 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(0).getReg());
5740 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5742 return Error(Operands[3]->getStartLoc(),
5743 "destination operands can't be identical");
5747 // Rt2 must be Rt + 1.
5748 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(0).getReg());
5749 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5751 return Error(Operands[3]->getStartLoc(),
5752 "source operands must be sequential");
5756 case ARM::STRD_POST: {
5757 // Rt2 must be Rt + 1.
5758 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5759 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(2).getReg());
5761 return Error(Operands[3]->getStartLoc(),
5762 "source operands must be sequential");
5767 // Width must be in range [1, 32-lsb].
5768 unsigned LSB = Inst.getOperand(2).getImm();
5769 unsigned Widthm1 = Inst.getOperand(3).getImm();
5770 if (Widthm1 >= 32 - LSB)
5771 return Error(Operands[5]->getStartLoc(),
5772 "bitfield width must be in range [1,32-lsb]");
5775 // Notionally handles ARM::tLDMIA_UPD too.
5777 // If we're parsing Thumb2, the .w variant is available and handles
5778 // most cases that are normally illegal for a Thumb1 LDM instruction.
5779 // We'll make the transformation in processInstruction() if necessary.
5781 // Thumb LDM instructions are writeback iff the base register is not
5782 // in the register list.
5783 unsigned Rn = Inst.getOperand(0).getReg();
5784 bool HasWritebackToken =
5785 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
5786 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
5787 bool ListContainsBase;
5788 if (checkLowRegisterList(Inst, 3, Rn, 0, ListContainsBase) && !isThumbTwo())
5789 return Error(Operands[3 + HasWritebackToken]->getStartLoc(),
5790 "registers must be in range r0-r7");
5791 // If we should have writeback, then there should be a '!' token.
5792 if (!ListContainsBase && !HasWritebackToken && !isThumbTwo())
5793 return Error(Operands[2]->getStartLoc(),
5794 "writeback operator '!' expected");
5795 // If we should not have writeback, there must not be a '!'. This is
5796 // true even for the 32-bit wide encodings.
5797 if (ListContainsBase && HasWritebackToken)
5798 return Error(Operands[3]->getStartLoc(),
5799 "writeback operator '!' not allowed when base register "
5800 "in register list");
5804 case ARM::LDMIA_UPD:
5805 case ARM::LDMDB_UPD:
5806 case ARM::LDMIB_UPD:
5807 case ARM::LDMDA_UPD:
5808 // ARM variants loading and updating the same register are only officially
5809 // UNPREDICTABLE on v7 upwards. Goodness knows what they did before.
5813 case ARM::t2LDMIA_UPD:
5814 case ARM::t2LDMDB_UPD:
5815 case ARM::t2STMIA_UPD:
5816 case ARM::t2STMDB_UPD: {
5817 if (listContainsReg(Inst, 3, Inst.getOperand(0).getReg()))
5818 return Error(Operands.back()->getStartLoc(),
5819 "writeback register not allowed in register list");
5822 case ARM::sysLDMIA_UPD:
5823 case ARM::sysLDMDA_UPD:
5824 case ARM::sysLDMDB_UPD:
5825 case ARM::sysLDMIB_UPD:
5826 if (!listContainsReg(Inst, 3, ARM::PC))
5827 return Error(Operands[4]->getStartLoc(),
5828 "writeback register only allowed on system LDM "
5829 "if PC in register-list");
5831 case ARM::sysSTMIA_UPD:
5832 case ARM::sysSTMDA_UPD:
5833 case ARM::sysSTMDB_UPD:
5834 case ARM::sysSTMIB_UPD:
5835 return Error(Operands[2]->getStartLoc(),
5836 "system STM cannot have writeback register");
5838 // The second source operand must be the same register as the destination
5841 // In this case, we must directly check the parsed operands because the
5842 // cvtThumbMultiply() function is written in such a way that it guarantees
5843 // this first statement is always true for the new Inst. Essentially, the
5844 // destination is unconditionally copied into the second source operand
5845 // without checking to see if it matches what we actually parsed.
5846 if (Operands.size() == 6 &&
5847 (((ARMOperand*)Operands[3])->getReg() !=
5848 ((ARMOperand*)Operands[5])->getReg()) &&
5849 (((ARMOperand*)Operands[3])->getReg() !=
5850 ((ARMOperand*)Operands[4])->getReg())) {
5851 return Error(Operands[3]->getStartLoc(),
5852 "destination register must match source register");
5856 // Like for ldm/stm, push and pop have hi-reg handling version in Thumb2,
5857 // so only issue a diagnostic for thumb1. The instructions will be
5858 // switched to the t2 encodings in processInstruction() if necessary.
5860 bool ListContainsBase;
5861 if (checkLowRegisterList(Inst, 2, 0, ARM::PC, ListContainsBase) &&
5863 return Error(Operands[2]->getStartLoc(),
5864 "registers must be in range r0-r7 or pc");
5868 bool ListContainsBase;
5869 if (checkLowRegisterList(Inst, 2, 0, ARM::LR, ListContainsBase) &&
5871 return Error(Operands[2]->getStartLoc(),
5872 "registers must be in range r0-r7 or lr");
5875 case ARM::tSTMIA_UPD: {
5876 bool ListContainsBase, InvalidLowList;
5877 InvalidLowList = checkLowRegisterList(Inst, 4, Inst.getOperand(0).getReg(),
5878 0, ListContainsBase);
5879 if (InvalidLowList && !isThumbTwo())
5880 return Error(Operands[4]->getStartLoc(),
5881 "registers must be in range r0-r7");
5883 // This would be converted to a 32-bit stm, but that's not valid if the
5884 // writeback register is in the list.
5885 if (InvalidLowList && ListContainsBase)
5886 return Error(Operands[4]->getStartLoc(),
5887 "writeback operator '!' not allowed when base register "
5888 "in register list");
5891 case ARM::tADDrSP: {
5892 // If the non-SP source operand and the destination operand are not the
5893 // same, we need thumb2 (for the wide encoding), or we have an error.
5894 if (!isThumbTwo() &&
5895 Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
5896 return Error(Operands[4]->getStartLoc(),
5897 "source register must be the same as destination");
5901 // Final range checking for Thumb unconditional branch instructions.
5903 if (!(static_cast<ARMOperand*>(Operands[2]))->isSignedOffset<11, 1>())
5904 return Error(Operands[2]->getStartLoc(), "branch target out of range");
5907 int op = (Operands[2]->isImm()) ? 2 : 3;
5908 if (!(static_cast<ARMOperand*>(Operands[op]))->isSignedOffset<24, 1>())
5909 return Error(Operands[op]->getStartLoc(), "branch target out of range");
5912 // Final range checking for Thumb conditional branch instructions.
5914 if (!(static_cast<ARMOperand*>(Operands[2]))->isSignedOffset<8, 1>())
5915 return Error(Operands[2]->getStartLoc(), "branch target out of range");
5918 int Op = (Operands[2]->isImm()) ? 2 : 3;
5919 if (!(static_cast<ARMOperand*>(Operands[Op]))->isSignedOffset<20, 1>())
5920 return Error(Operands[Op]->getStartLoc(), "branch target out of range");
5925 case ARM::t2MOVTi16:
5927 // We want to avoid misleadingly allowing something like "mov r0, <symbol>"
5928 // especially when we turn it into a movw and the expression <symbol> does
5929 // not have a :lower16: or :upper16 as part of the expression. We don't
5930 // want the behavior of silently truncating, which can be unexpected and
5931 // lead to bugs that are difficult to find since this is an easy mistake
5933 int i = (Operands[3]->isImm()) ? 3 : 4;
5934 ARMOperand *Op = static_cast<ARMOperand*>(Operands[i]);
5935 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5937 const MCExpr *E = dyn_cast<MCExpr>(Op->getImm());
5939 const ARMMCExpr *ARM16Expr = dyn_cast<ARMMCExpr>(E);
5940 if (!ARM16Expr || (ARM16Expr->getKind() != ARMMCExpr::VK_ARM_HI16 &&
5941 ARM16Expr->getKind() != ARMMCExpr::VK_ARM_LO16)) {
5942 return Error(Op->getStartLoc(),
5943 "immediate expression for mov requires :lower16: or :upper16");
5952 static unsigned getRealVSTOpcode(unsigned Opc, unsigned &Spacing) {
5954 default: llvm_unreachable("unexpected opcode!");
5956 case ARM::VST1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5957 case ARM::VST1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5958 case ARM::VST1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5959 case ARM::VST1LNdWB_register_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5960 case ARM::VST1LNdWB_register_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5961 case ARM::VST1LNdWB_register_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5962 case ARM::VST1LNdAsm_8: Spacing = 1; return ARM::VST1LNd8;
5963 case ARM::VST1LNdAsm_16: Spacing = 1; return ARM::VST1LNd16;
5964 case ARM::VST1LNdAsm_32: Spacing = 1; return ARM::VST1LNd32;
5967 case ARM::VST2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5968 case ARM::VST2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5969 case ARM::VST2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5970 case ARM::VST2LNqWB_fixed_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5971 case ARM::VST2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5973 case ARM::VST2LNdWB_register_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5974 case ARM::VST2LNdWB_register_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5975 case ARM::VST2LNdWB_register_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5976 case ARM::VST2LNqWB_register_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5977 case ARM::VST2LNqWB_register_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5979 case ARM::VST2LNdAsm_8: Spacing = 1; return ARM::VST2LNd8;
5980 case ARM::VST2LNdAsm_16: Spacing = 1; return ARM::VST2LNd16;
5981 case ARM::VST2LNdAsm_32: Spacing = 1; return ARM::VST2LNd32;
5982 case ARM::VST2LNqAsm_16: Spacing = 2; return ARM::VST2LNq16;
5983 case ARM::VST2LNqAsm_32: Spacing = 2; return ARM::VST2LNq32;
5986 case ARM::VST3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5987 case ARM::VST3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5988 case ARM::VST3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5989 case ARM::VST3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNq16_UPD;
5990 case ARM::VST3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5991 case ARM::VST3LNdWB_register_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5992 case ARM::VST3LNdWB_register_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5993 case ARM::VST3LNdWB_register_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5994 case ARM::VST3LNqWB_register_Asm_16: Spacing = 2; return ARM::VST3LNq16_UPD;
5995 case ARM::VST3LNqWB_register_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5996 case ARM::VST3LNdAsm_8: Spacing = 1; return ARM::VST3LNd8;
5997 case ARM::VST3LNdAsm_16: Spacing = 1; return ARM::VST3LNd16;
5998 case ARM::VST3LNdAsm_32: Spacing = 1; return ARM::VST3LNd32;
5999 case ARM::VST3LNqAsm_16: Spacing = 2; return ARM::VST3LNq16;
6000 case ARM::VST3LNqAsm_32: Spacing = 2; return ARM::VST3LNq32;
6003 case ARM::VST3dWB_fixed_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
6004 case ARM::VST3dWB_fixed_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
6005 case ARM::VST3dWB_fixed_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
6006 case ARM::VST3qWB_fixed_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
6007 case ARM::VST3qWB_fixed_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
6008 case ARM::VST3qWB_fixed_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
6009 case ARM::VST3dWB_register_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
6010 case ARM::VST3dWB_register_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
6011 case ARM::VST3dWB_register_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
6012 case ARM::VST3qWB_register_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
6013 case ARM::VST3qWB_register_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
6014 case ARM::VST3qWB_register_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
6015 case ARM::VST3dAsm_8: Spacing = 1; return ARM::VST3d8;
6016 case ARM::VST3dAsm_16: Spacing = 1; return ARM::VST3d16;
6017 case ARM::VST3dAsm_32: Spacing = 1; return ARM::VST3d32;
6018 case ARM::VST3qAsm_8: Spacing = 2; return ARM::VST3q8;
6019 case ARM::VST3qAsm_16: Spacing = 2; return ARM::VST3q16;
6020 case ARM::VST3qAsm_32: Spacing = 2; return ARM::VST3q32;
6023 case ARM::VST4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
6024 case ARM::VST4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
6025 case ARM::VST4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
6026 case ARM::VST4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNq16_UPD;
6027 case ARM::VST4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
6028 case ARM::VST4LNdWB_register_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
6029 case ARM::VST4LNdWB_register_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
6030 case ARM::VST4LNdWB_register_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
6031 case ARM::VST4LNqWB_register_Asm_16: Spacing = 2; return ARM::VST4LNq16_UPD;
6032 case ARM::VST4LNqWB_register_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
6033 case ARM::VST4LNdAsm_8: Spacing = 1; return ARM::VST4LNd8;
6034 case ARM::VST4LNdAsm_16: Spacing = 1; return ARM::VST4LNd16;
6035 case ARM::VST4LNdAsm_32: Spacing = 1; return ARM::VST4LNd32;
6036 case ARM::VST4LNqAsm_16: Spacing = 2; return ARM::VST4LNq16;
6037 case ARM::VST4LNqAsm_32: Spacing = 2; return ARM::VST4LNq32;
6040 case ARM::VST4dWB_fixed_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
6041 case ARM::VST4dWB_fixed_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
6042 case ARM::VST4dWB_fixed_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
6043 case ARM::VST4qWB_fixed_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
6044 case ARM::VST4qWB_fixed_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
6045 case ARM::VST4qWB_fixed_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
6046 case ARM::VST4dWB_register_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
6047 case ARM::VST4dWB_register_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
6048 case ARM::VST4dWB_register_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
6049 case ARM::VST4qWB_register_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
6050 case ARM::VST4qWB_register_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
6051 case ARM::VST4qWB_register_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
6052 case ARM::VST4dAsm_8: Spacing = 1; return ARM::VST4d8;
6053 case ARM::VST4dAsm_16: Spacing = 1; return ARM::VST4d16;
6054 case ARM::VST4dAsm_32: Spacing = 1; return ARM::VST4d32;
6055 case ARM::VST4qAsm_8: Spacing = 2; return ARM::VST4q8;
6056 case ARM::VST4qAsm_16: Spacing = 2; return ARM::VST4q16;
6057 case ARM::VST4qAsm_32: Spacing = 2; return ARM::VST4q32;
6061 static unsigned getRealVLDOpcode(unsigned Opc, unsigned &Spacing) {
6063 default: llvm_unreachable("unexpected opcode!");
6065 case ARM::VLD1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
6066 case ARM::VLD1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
6067 case ARM::VLD1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
6068 case ARM::VLD1LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
6069 case ARM::VLD1LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
6070 case ARM::VLD1LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
6071 case ARM::VLD1LNdAsm_8: Spacing = 1; return ARM::VLD1LNd8;
6072 case ARM::VLD1LNdAsm_16: Spacing = 1; return ARM::VLD1LNd16;
6073 case ARM::VLD1LNdAsm_32: Spacing = 1; return ARM::VLD1LNd32;
6076 case ARM::VLD2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
6077 case ARM::VLD2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
6078 case ARM::VLD2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
6079 case ARM::VLD2LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNq16_UPD;
6080 case ARM::VLD2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
6081 case ARM::VLD2LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
6082 case ARM::VLD2LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
6083 case ARM::VLD2LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
6084 case ARM::VLD2LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD2LNq16_UPD;
6085 case ARM::VLD2LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
6086 case ARM::VLD2LNdAsm_8: Spacing = 1; return ARM::VLD2LNd8;
6087 case ARM::VLD2LNdAsm_16: Spacing = 1; return ARM::VLD2LNd16;
6088 case ARM::VLD2LNdAsm_32: Spacing = 1; return ARM::VLD2LNd32;
6089 case ARM::VLD2LNqAsm_16: Spacing = 2; return ARM::VLD2LNq16;
6090 case ARM::VLD2LNqAsm_32: Spacing = 2; return ARM::VLD2LNq32;
6093 case ARM::VLD3DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
6094 case ARM::VLD3DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
6095 case ARM::VLD3DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
6096 case ARM::VLD3DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPq8_UPD;
6097 case ARM::VLD3DUPqWB_fixed_Asm_16: Spacing = 2; return ARM::VLD3DUPq16_UPD;
6098 case ARM::VLD3DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
6099 case ARM::VLD3DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
6100 case ARM::VLD3DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
6101 case ARM::VLD3DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
6102 case ARM::VLD3DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD3DUPq8_UPD;
6103 case ARM::VLD3DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD3DUPq16_UPD;
6104 case ARM::VLD3DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
6105 case ARM::VLD3DUPdAsm_8: Spacing = 1; return ARM::VLD3DUPd8;
6106 case ARM::VLD3DUPdAsm_16: Spacing = 1; return ARM::VLD3DUPd16;
6107 case ARM::VLD3DUPdAsm_32: Spacing = 1; return ARM::VLD3DUPd32;
6108 case ARM::VLD3DUPqAsm_8: Spacing = 2; return ARM::VLD3DUPq8;
6109 case ARM::VLD3DUPqAsm_16: Spacing = 2; return ARM::VLD3DUPq16;
6110 case ARM::VLD3DUPqAsm_32: Spacing = 2; return ARM::VLD3DUPq32;
6113 case ARM::VLD3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
6114 case ARM::VLD3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
6115 case ARM::VLD3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
6116 case ARM::VLD3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNq16_UPD;
6117 case ARM::VLD3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
6118 case ARM::VLD3LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
6119 case ARM::VLD3LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
6120 case ARM::VLD3LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
6121 case ARM::VLD3LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD3LNq16_UPD;
6122 case ARM::VLD3LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
6123 case ARM::VLD3LNdAsm_8: Spacing = 1; return ARM::VLD3LNd8;
6124 case ARM::VLD3LNdAsm_16: Spacing = 1; return ARM::VLD3LNd16;
6125 case ARM::VLD3LNdAsm_32: Spacing = 1; return ARM::VLD3LNd32;
6126 case ARM::VLD3LNqAsm_16: Spacing = 2; return ARM::VLD3LNq16;
6127 case ARM::VLD3LNqAsm_32: Spacing = 2; return ARM::VLD3LNq32;
6130 case ARM::VLD3dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
6131 case ARM::VLD3dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
6132 case ARM::VLD3dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
6133 case ARM::VLD3qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
6134 case ARM::VLD3qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
6135 case ARM::VLD3qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
6136 case ARM::VLD3dWB_register_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
6137 case ARM::VLD3dWB_register_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
6138 case ARM::VLD3dWB_register_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
6139 case ARM::VLD3qWB_register_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
6140 case ARM::VLD3qWB_register_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
6141 case ARM::VLD3qWB_register_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
6142 case ARM::VLD3dAsm_8: Spacing = 1; return ARM::VLD3d8;
6143 case ARM::VLD3dAsm_16: Spacing = 1; return ARM::VLD3d16;
6144 case ARM::VLD3dAsm_32: Spacing = 1; return ARM::VLD3d32;
6145 case ARM::VLD3qAsm_8: Spacing = 2; return ARM::VLD3q8;
6146 case ARM::VLD3qAsm_16: Spacing = 2; return ARM::VLD3q16;
6147 case ARM::VLD3qAsm_32: Spacing = 2; return ARM::VLD3q32;
6150 case ARM::VLD4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
6151 case ARM::VLD4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
6152 case ARM::VLD4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
6153 case ARM::VLD4LNqWB_fixed_Asm_16: Spacing = 2; return ARM::VLD4LNq16_UPD;
6154 case ARM::VLD4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
6155 case ARM::VLD4LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
6156 case ARM::VLD4LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
6157 case ARM::VLD4LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
6158 case ARM::VLD4LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD4LNq16_UPD;
6159 case ARM::VLD4LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
6160 case ARM::VLD4LNdAsm_8: Spacing = 1; return ARM::VLD4LNd8;
6161 case ARM::VLD4LNdAsm_16: Spacing = 1; return ARM::VLD4LNd16;
6162 case ARM::VLD4LNdAsm_32: Spacing = 1; return ARM::VLD4LNd32;
6163 case ARM::VLD4LNqAsm_16: Spacing = 2; return ARM::VLD4LNq16;
6164 case ARM::VLD4LNqAsm_32: Spacing = 2; return ARM::VLD4LNq32;
6167 case ARM::VLD4DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
6168 case ARM::VLD4DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
6169 case ARM::VLD4DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
6170 case ARM::VLD4DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPq8_UPD;
6171 case ARM::VLD4DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPq16_UPD;
6172 case ARM::VLD4DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
6173 case ARM::VLD4DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
6174 case ARM::VLD4DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
6175 case ARM::VLD4DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
6176 case ARM::VLD4DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD4DUPq8_UPD;
6177 case ARM::VLD4DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD4DUPq16_UPD;
6178 case ARM::VLD4DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
6179 case ARM::VLD4DUPdAsm_8: Spacing = 1; return ARM::VLD4DUPd8;
6180 case ARM::VLD4DUPdAsm_16: Spacing = 1; return ARM::VLD4DUPd16;
6181 case ARM::VLD4DUPdAsm_32: Spacing = 1; return ARM::VLD4DUPd32;
6182 case ARM::VLD4DUPqAsm_8: Spacing = 2; return ARM::VLD4DUPq8;
6183 case ARM::VLD4DUPqAsm_16: Spacing = 2; return ARM::VLD4DUPq16;
6184 case ARM::VLD4DUPqAsm_32: Spacing = 2; return ARM::VLD4DUPq32;
6187 case ARM::VLD4dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
6188 case ARM::VLD4dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
6189 case ARM::VLD4dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
6190 case ARM::VLD4qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
6191 case ARM::VLD4qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
6192 case ARM::VLD4qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
6193 case ARM::VLD4dWB_register_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
6194 case ARM::VLD4dWB_register_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
6195 case ARM::VLD4dWB_register_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
6196 case ARM::VLD4qWB_register_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
6197 case ARM::VLD4qWB_register_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
6198 case ARM::VLD4qWB_register_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
6199 case ARM::VLD4dAsm_8: Spacing = 1; return ARM::VLD4d8;
6200 case ARM::VLD4dAsm_16: Spacing = 1; return ARM::VLD4d16;
6201 case ARM::VLD4dAsm_32: Spacing = 1; return ARM::VLD4d32;
6202 case ARM::VLD4qAsm_8: Spacing = 2; return ARM::VLD4q8;
6203 case ARM::VLD4qAsm_16: Spacing = 2; return ARM::VLD4q16;
6204 case ARM::VLD4qAsm_32: Spacing = 2; return ARM::VLD4q32;
6209 processInstruction(MCInst &Inst,
6210 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
6211 switch (Inst.getOpcode()) {
6212 // Alias for alternate form of 'ldr{,b}t Rt, [Rn], #imm' instruction.
6213 case ARM::LDRT_POST:
6214 case ARM::LDRBT_POST: {
6215 const unsigned Opcode =
6216 (Inst.getOpcode() == ARM::LDRT_POST) ? ARM::LDRT_POST_IMM
6217 : ARM::LDRBT_POST_IMM;
6219 TmpInst.setOpcode(Opcode);
6220 TmpInst.addOperand(Inst.getOperand(0));
6221 TmpInst.addOperand(Inst.getOperand(1));
6222 TmpInst.addOperand(Inst.getOperand(1));
6223 TmpInst.addOperand(MCOperand::CreateReg(0));
6224 TmpInst.addOperand(MCOperand::CreateImm(0));
6225 TmpInst.addOperand(Inst.getOperand(2));
6226 TmpInst.addOperand(Inst.getOperand(3));
6230 // Alias for alternate form of 'str{,b}t Rt, [Rn], #imm' instruction.
6231 case ARM::STRT_POST:
6232 case ARM::STRBT_POST: {
6233 const unsigned Opcode =
6234 (Inst.getOpcode() == ARM::STRT_POST) ? ARM::STRT_POST_IMM
6235 : ARM::STRBT_POST_IMM;
6237 TmpInst.setOpcode(Opcode);
6238 TmpInst.addOperand(Inst.getOperand(1));
6239 TmpInst.addOperand(Inst.getOperand(0));
6240 TmpInst.addOperand(Inst.getOperand(1));
6241 TmpInst.addOperand(MCOperand::CreateReg(0));
6242 TmpInst.addOperand(MCOperand::CreateImm(0));
6243 TmpInst.addOperand(Inst.getOperand(2));
6244 TmpInst.addOperand(Inst.getOperand(3));
6248 // Alias for alternate form of 'ADR Rd, #imm' instruction.
6250 if (Inst.getOperand(1).getReg() != ARM::PC ||
6251 Inst.getOperand(5).getReg() != 0)
6254 TmpInst.setOpcode(ARM::ADR);
6255 TmpInst.addOperand(Inst.getOperand(0));
6256 TmpInst.addOperand(Inst.getOperand(2));
6257 TmpInst.addOperand(Inst.getOperand(3));
6258 TmpInst.addOperand(Inst.getOperand(4));
6262 // Aliases for alternate PC+imm syntax of LDR instructions.
6263 case ARM::t2LDRpcrel:
6264 // Select the narrow version if the immediate will fit.
6265 if (Inst.getOperand(1).getImm() > 0 &&
6266 Inst.getOperand(1).getImm() <= 0xff &&
6267 !(static_cast<ARMOperand*>(Operands[2])->isToken() &&
6268 static_cast<ARMOperand*>(Operands[2])->getToken() == ".w"))
6269 Inst.setOpcode(ARM::tLDRpci);
6271 Inst.setOpcode(ARM::t2LDRpci);
6273 case ARM::t2LDRBpcrel:
6274 Inst.setOpcode(ARM::t2LDRBpci);
6276 case ARM::t2LDRHpcrel:
6277 Inst.setOpcode(ARM::t2LDRHpci);
6279 case ARM::t2LDRSBpcrel:
6280 Inst.setOpcode(ARM::t2LDRSBpci);
6282 case ARM::t2LDRSHpcrel:
6283 Inst.setOpcode(ARM::t2LDRSHpci);
6285 // Handle NEON VST complex aliases.
6286 case ARM::VST1LNdWB_register_Asm_8:
6287 case ARM::VST1LNdWB_register_Asm_16:
6288 case ARM::VST1LNdWB_register_Asm_32: {
6290 // Shuffle the operands around so the lane index operand is in the
6293 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6294 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6295 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6296 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6297 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6298 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6299 TmpInst.addOperand(Inst.getOperand(1)); // lane
6300 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6301 TmpInst.addOperand(Inst.getOperand(6));
6306 case ARM::VST2LNdWB_register_Asm_8:
6307 case ARM::VST2LNdWB_register_Asm_16:
6308 case ARM::VST2LNdWB_register_Asm_32:
6309 case ARM::VST2LNqWB_register_Asm_16:
6310 case ARM::VST2LNqWB_register_Asm_32: {
6312 // Shuffle the operands around so the lane index operand is in the
6315 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6316 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6317 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6318 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6319 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6320 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6321 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6323 TmpInst.addOperand(Inst.getOperand(1)); // lane
6324 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6325 TmpInst.addOperand(Inst.getOperand(6));
6330 case ARM::VST3LNdWB_register_Asm_8:
6331 case ARM::VST3LNdWB_register_Asm_16:
6332 case ARM::VST3LNdWB_register_Asm_32:
6333 case ARM::VST3LNqWB_register_Asm_16:
6334 case ARM::VST3LNqWB_register_Asm_32: {
6336 // Shuffle the operands around so the lane index operand is in the
6339 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6340 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6341 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6342 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6343 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6344 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6345 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6347 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6349 TmpInst.addOperand(Inst.getOperand(1)); // lane
6350 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6351 TmpInst.addOperand(Inst.getOperand(6));
6356 case ARM::VST4LNdWB_register_Asm_8:
6357 case ARM::VST4LNdWB_register_Asm_16:
6358 case ARM::VST4LNdWB_register_Asm_32:
6359 case ARM::VST4LNqWB_register_Asm_16:
6360 case ARM::VST4LNqWB_register_Asm_32: {
6362 // Shuffle the operands around so the lane index operand is in the
6365 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6366 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6367 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6368 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6369 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6370 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6371 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6373 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6375 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6377 TmpInst.addOperand(Inst.getOperand(1)); // lane
6378 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6379 TmpInst.addOperand(Inst.getOperand(6));
6384 case ARM::VST1LNdWB_fixed_Asm_8:
6385 case ARM::VST1LNdWB_fixed_Asm_16:
6386 case ARM::VST1LNdWB_fixed_Asm_32: {
6388 // Shuffle the operands around so the lane index operand is in the
6391 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6392 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6393 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6394 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6395 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6396 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6397 TmpInst.addOperand(Inst.getOperand(1)); // lane
6398 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6399 TmpInst.addOperand(Inst.getOperand(5));
6404 case ARM::VST2LNdWB_fixed_Asm_8:
6405 case ARM::VST2LNdWB_fixed_Asm_16:
6406 case ARM::VST2LNdWB_fixed_Asm_32:
6407 case ARM::VST2LNqWB_fixed_Asm_16:
6408 case ARM::VST2LNqWB_fixed_Asm_32: {
6410 // Shuffle the operands around so the lane index operand is in the
6413 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6414 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6415 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6416 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6417 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6418 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6419 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6421 TmpInst.addOperand(Inst.getOperand(1)); // lane
6422 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6423 TmpInst.addOperand(Inst.getOperand(5));
6428 case ARM::VST3LNdWB_fixed_Asm_8:
6429 case ARM::VST3LNdWB_fixed_Asm_16:
6430 case ARM::VST3LNdWB_fixed_Asm_32:
6431 case ARM::VST3LNqWB_fixed_Asm_16:
6432 case ARM::VST3LNqWB_fixed_Asm_32: {
6434 // Shuffle the operands around so the lane index operand is in the
6437 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6438 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6439 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6440 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6441 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6442 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6443 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6445 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6447 TmpInst.addOperand(Inst.getOperand(1)); // lane
6448 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6449 TmpInst.addOperand(Inst.getOperand(5));
6454 case ARM::VST4LNdWB_fixed_Asm_8:
6455 case ARM::VST4LNdWB_fixed_Asm_16:
6456 case ARM::VST4LNdWB_fixed_Asm_32:
6457 case ARM::VST4LNqWB_fixed_Asm_16:
6458 case ARM::VST4LNqWB_fixed_Asm_32: {
6460 // Shuffle the operands around so the lane index operand is in the
6463 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6464 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6465 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6466 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6467 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6468 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6469 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6471 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6473 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6475 TmpInst.addOperand(Inst.getOperand(1)); // lane
6476 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6477 TmpInst.addOperand(Inst.getOperand(5));
6482 case ARM::VST1LNdAsm_8:
6483 case ARM::VST1LNdAsm_16:
6484 case ARM::VST1LNdAsm_32: {
6486 // Shuffle the operands around so the lane index operand is in the
6489 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6490 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6491 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6492 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6493 TmpInst.addOperand(Inst.getOperand(1)); // lane
6494 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6495 TmpInst.addOperand(Inst.getOperand(5));
6500 case ARM::VST2LNdAsm_8:
6501 case ARM::VST2LNdAsm_16:
6502 case ARM::VST2LNdAsm_32:
6503 case ARM::VST2LNqAsm_16:
6504 case ARM::VST2LNqAsm_32: {
6506 // Shuffle the operands around so the lane index operand is in the
6509 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6510 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6511 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6512 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6513 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6515 TmpInst.addOperand(Inst.getOperand(1)); // lane
6516 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6517 TmpInst.addOperand(Inst.getOperand(5));
6522 case ARM::VST3LNdAsm_8:
6523 case ARM::VST3LNdAsm_16:
6524 case ARM::VST3LNdAsm_32:
6525 case ARM::VST3LNqAsm_16:
6526 case ARM::VST3LNqAsm_32: {
6528 // Shuffle the operands around so the lane index operand is in the
6531 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6532 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6533 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6534 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6535 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6537 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6539 TmpInst.addOperand(Inst.getOperand(1)); // lane
6540 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6541 TmpInst.addOperand(Inst.getOperand(5));
6546 case ARM::VST4LNdAsm_8:
6547 case ARM::VST4LNdAsm_16:
6548 case ARM::VST4LNdAsm_32:
6549 case ARM::VST4LNqAsm_16:
6550 case ARM::VST4LNqAsm_32: {
6552 // Shuffle the operands around so the lane index operand is in the
6555 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6556 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6557 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6558 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6559 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6561 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6563 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6565 TmpInst.addOperand(Inst.getOperand(1)); // lane
6566 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6567 TmpInst.addOperand(Inst.getOperand(5));
6572 // Handle NEON VLD complex aliases.
6573 case ARM::VLD1LNdWB_register_Asm_8:
6574 case ARM::VLD1LNdWB_register_Asm_16:
6575 case ARM::VLD1LNdWB_register_Asm_32: {
6577 // Shuffle the operands around so the lane index operand is in the
6580 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6581 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6582 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6583 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6584 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6585 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6586 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6587 TmpInst.addOperand(Inst.getOperand(1)); // lane
6588 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6589 TmpInst.addOperand(Inst.getOperand(6));
6594 case ARM::VLD2LNdWB_register_Asm_8:
6595 case ARM::VLD2LNdWB_register_Asm_16:
6596 case ARM::VLD2LNdWB_register_Asm_32:
6597 case ARM::VLD2LNqWB_register_Asm_16:
6598 case ARM::VLD2LNqWB_register_Asm_32: {
6600 // Shuffle the operands around so the lane index operand is in the
6603 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6604 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6605 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6607 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6608 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6609 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6610 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6611 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6612 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6614 TmpInst.addOperand(Inst.getOperand(1)); // lane
6615 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6616 TmpInst.addOperand(Inst.getOperand(6));
6621 case ARM::VLD3LNdWB_register_Asm_8:
6622 case ARM::VLD3LNdWB_register_Asm_16:
6623 case ARM::VLD3LNdWB_register_Asm_32:
6624 case ARM::VLD3LNqWB_register_Asm_16:
6625 case ARM::VLD3LNqWB_register_Asm_32: {
6627 // Shuffle the operands around so the lane index operand is in the
6630 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6631 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6632 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6634 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6636 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6637 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6638 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6639 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6640 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6641 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6643 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6645 TmpInst.addOperand(Inst.getOperand(1)); // lane
6646 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6647 TmpInst.addOperand(Inst.getOperand(6));
6652 case ARM::VLD4LNdWB_register_Asm_8:
6653 case ARM::VLD4LNdWB_register_Asm_16:
6654 case ARM::VLD4LNdWB_register_Asm_32:
6655 case ARM::VLD4LNqWB_register_Asm_16:
6656 case ARM::VLD4LNqWB_register_Asm_32: {
6658 // Shuffle the operands around so the lane index operand is in the
6661 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6662 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6663 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6665 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6667 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6669 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6670 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6671 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6672 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6673 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6674 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6676 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6678 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6680 TmpInst.addOperand(Inst.getOperand(1)); // lane
6681 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6682 TmpInst.addOperand(Inst.getOperand(6));
6687 case ARM::VLD1LNdWB_fixed_Asm_8:
6688 case ARM::VLD1LNdWB_fixed_Asm_16:
6689 case ARM::VLD1LNdWB_fixed_Asm_32: {
6691 // Shuffle the operands around so the lane index operand is in the
6694 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6695 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6696 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6697 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6698 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6699 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6700 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6701 TmpInst.addOperand(Inst.getOperand(1)); // lane
6702 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6703 TmpInst.addOperand(Inst.getOperand(5));
6708 case ARM::VLD2LNdWB_fixed_Asm_8:
6709 case ARM::VLD2LNdWB_fixed_Asm_16:
6710 case ARM::VLD2LNdWB_fixed_Asm_32:
6711 case ARM::VLD2LNqWB_fixed_Asm_16:
6712 case ARM::VLD2LNqWB_fixed_Asm_32: {
6714 // Shuffle the operands around so the lane index operand is in the
6717 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6718 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6719 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6721 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6722 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6723 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6724 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6725 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6726 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6728 TmpInst.addOperand(Inst.getOperand(1)); // lane
6729 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6730 TmpInst.addOperand(Inst.getOperand(5));
6735 case ARM::VLD3LNdWB_fixed_Asm_8:
6736 case ARM::VLD3LNdWB_fixed_Asm_16:
6737 case ARM::VLD3LNdWB_fixed_Asm_32:
6738 case ARM::VLD3LNqWB_fixed_Asm_16:
6739 case ARM::VLD3LNqWB_fixed_Asm_32: {
6741 // Shuffle the operands around so the lane index operand is in the
6744 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6745 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6746 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6748 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6750 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6751 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6752 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6753 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6754 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6755 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6757 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6759 TmpInst.addOperand(Inst.getOperand(1)); // lane
6760 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6761 TmpInst.addOperand(Inst.getOperand(5));
6766 case ARM::VLD4LNdWB_fixed_Asm_8:
6767 case ARM::VLD4LNdWB_fixed_Asm_16:
6768 case ARM::VLD4LNdWB_fixed_Asm_32:
6769 case ARM::VLD4LNqWB_fixed_Asm_16:
6770 case ARM::VLD4LNqWB_fixed_Asm_32: {
6772 // Shuffle the operands around so the lane index operand is in the
6775 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6776 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6777 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6779 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6781 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6783 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6784 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6785 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6786 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6787 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6788 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6790 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6792 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6794 TmpInst.addOperand(Inst.getOperand(1)); // lane
6795 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6796 TmpInst.addOperand(Inst.getOperand(5));
6801 case ARM::VLD1LNdAsm_8:
6802 case ARM::VLD1LNdAsm_16:
6803 case ARM::VLD1LNdAsm_32: {
6805 // Shuffle the operands around so the lane index operand is in the
6808 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6809 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6810 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6811 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6812 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6813 TmpInst.addOperand(Inst.getOperand(1)); // lane
6814 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6815 TmpInst.addOperand(Inst.getOperand(5));
6820 case ARM::VLD2LNdAsm_8:
6821 case ARM::VLD2LNdAsm_16:
6822 case ARM::VLD2LNdAsm_32:
6823 case ARM::VLD2LNqAsm_16:
6824 case ARM::VLD2LNqAsm_32: {
6826 // Shuffle the operands around so the lane index operand is in the
6829 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6830 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6831 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6833 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6834 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6835 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6836 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6838 TmpInst.addOperand(Inst.getOperand(1)); // lane
6839 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6840 TmpInst.addOperand(Inst.getOperand(5));
6845 case ARM::VLD3LNdAsm_8:
6846 case ARM::VLD3LNdAsm_16:
6847 case ARM::VLD3LNdAsm_32:
6848 case ARM::VLD3LNqAsm_16:
6849 case ARM::VLD3LNqAsm_32: {
6851 // Shuffle the operands around so the lane index operand is in the
6854 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6855 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6856 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6858 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6860 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6861 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6862 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6863 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6865 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6867 TmpInst.addOperand(Inst.getOperand(1)); // lane
6868 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6869 TmpInst.addOperand(Inst.getOperand(5));
6874 case ARM::VLD4LNdAsm_8:
6875 case ARM::VLD4LNdAsm_16:
6876 case ARM::VLD4LNdAsm_32:
6877 case ARM::VLD4LNqAsm_16:
6878 case ARM::VLD4LNqAsm_32: {
6880 // Shuffle the operands around so the lane index operand is in the
6883 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6884 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6885 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6887 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6889 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6891 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6892 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6893 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6894 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6896 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6898 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6900 TmpInst.addOperand(Inst.getOperand(1)); // lane
6901 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6902 TmpInst.addOperand(Inst.getOperand(5));
6907 // VLD3DUP single 3-element structure to all lanes instructions.
6908 case ARM::VLD3DUPdAsm_8:
6909 case ARM::VLD3DUPdAsm_16:
6910 case ARM::VLD3DUPdAsm_32:
6911 case ARM::VLD3DUPqAsm_8:
6912 case ARM::VLD3DUPqAsm_16:
6913 case ARM::VLD3DUPqAsm_32: {
6916 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6917 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6918 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6920 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6922 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6923 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6924 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6925 TmpInst.addOperand(Inst.getOperand(4));
6930 case ARM::VLD3DUPdWB_fixed_Asm_8:
6931 case ARM::VLD3DUPdWB_fixed_Asm_16:
6932 case ARM::VLD3DUPdWB_fixed_Asm_32:
6933 case ARM::VLD3DUPqWB_fixed_Asm_8:
6934 case ARM::VLD3DUPqWB_fixed_Asm_16:
6935 case ARM::VLD3DUPqWB_fixed_Asm_32: {
6938 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6939 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6940 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6942 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6944 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6945 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6946 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6947 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6948 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6949 TmpInst.addOperand(Inst.getOperand(4));
6954 case ARM::VLD3DUPdWB_register_Asm_8:
6955 case ARM::VLD3DUPdWB_register_Asm_16:
6956 case ARM::VLD3DUPdWB_register_Asm_32:
6957 case ARM::VLD3DUPqWB_register_Asm_8:
6958 case ARM::VLD3DUPqWB_register_Asm_16:
6959 case ARM::VLD3DUPqWB_register_Asm_32: {
6962 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6963 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6964 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6966 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6968 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6969 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6970 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6971 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6972 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6973 TmpInst.addOperand(Inst.getOperand(5));
6978 // VLD3 multiple 3-element structure instructions.
6979 case ARM::VLD3dAsm_8:
6980 case ARM::VLD3dAsm_16:
6981 case ARM::VLD3dAsm_32:
6982 case ARM::VLD3qAsm_8:
6983 case ARM::VLD3qAsm_16:
6984 case ARM::VLD3qAsm_32: {
6987 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6988 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6989 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6991 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6993 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6994 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6995 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6996 TmpInst.addOperand(Inst.getOperand(4));
7001 case ARM::VLD3dWB_fixed_Asm_8:
7002 case ARM::VLD3dWB_fixed_Asm_16:
7003 case ARM::VLD3dWB_fixed_Asm_32:
7004 case ARM::VLD3qWB_fixed_Asm_8:
7005 case ARM::VLD3qWB_fixed_Asm_16:
7006 case ARM::VLD3qWB_fixed_Asm_32: {
7009 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
7010 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7011 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7013 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7015 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7016 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7017 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7018 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
7019 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7020 TmpInst.addOperand(Inst.getOperand(4));
7025 case ARM::VLD3dWB_register_Asm_8:
7026 case ARM::VLD3dWB_register_Asm_16:
7027 case ARM::VLD3dWB_register_Asm_32:
7028 case ARM::VLD3qWB_register_Asm_8:
7029 case ARM::VLD3qWB_register_Asm_16:
7030 case ARM::VLD3qWB_register_Asm_32: {
7033 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
7034 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7035 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7037 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7039 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7040 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7041 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7042 TmpInst.addOperand(Inst.getOperand(3)); // Rm
7043 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7044 TmpInst.addOperand(Inst.getOperand(5));
7049 // VLD4DUP single 3-element structure to all lanes instructions.
7050 case ARM::VLD4DUPdAsm_8:
7051 case ARM::VLD4DUPdAsm_16:
7052 case ARM::VLD4DUPdAsm_32:
7053 case ARM::VLD4DUPqAsm_8:
7054 case ARM::VLD4DUPqAsm_16:
7055 case ARM::VLD4DUPqAsm_32: {
7058 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
7059 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7060 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7062 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7064 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7066 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7067 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7068 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7069 TmpInst.addOperand(Inst.getOperand(4));
7074 case ARM::VLD4DUPdWB_fixed_Asm_8:
7075 case ARM::VLD4DUPdWB_fixed_Asm_16:
7076 case ARM::VLD4DUPdWB_fixed_Asm_32:
7077 case ARM::VLD4DUPqWB_fixed_Asm_8:
7078 case ARM::VLD4DUPqWB_fixed_Asm_16:
7079 case ARM::VLD4DUPqWB_fixed_Asm_32: {
7082 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
7083 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7084 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7086 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7088 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7090 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7091 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7092 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7093 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
7094 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7095 TmpInst.addOperand(Inst.getOperand(4));
7100 case ARM::VLD4DUPdWB_register_Asm_8:
7101 case ARM::VLD4DUPdWB_register_Asm_16:
7102 case ARM::VLD4DUPdWB_register_Asm_32:
7103 case ARM::VLD4DUPqWB_register_Asm_8:
7104 case ARM::VLD4DUPqWB_register_Asm_16:
7105 case ARM::VLD4DUPqWB_register_Asm_32: {
7108 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
7109 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7110 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7112 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7114 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7116 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7117 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7118 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7119 TmpInst.addOperand(Inst.getOperand(3)); // Rm
7120 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7121 TmpInst.addOperand(Inst.getOperand(5));
7126 // VLD4 multiple 4-element structure instructions.
7127 case ARM::VLD4dAsm_8:
7128 case ARM::VLD4dAsm_16:
7129 case ARM::VLD4dAsm_32:
7130 case ARM::VLD4qAsm_8:
7131 case ARM::VLD4qAsm_16:
7132 case ARM::VLD4qAsm_32: {
7135 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
7136 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7137 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7139 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7141 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7143 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7144 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7145 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7146 TmpInst.addOperand(Inst.getOperand(4));
7151 case ARM::VLD4dWB_fixed_Asm_8:
7152 case ARM::VLD4dWB_fixed_Asm_16:
7153 case ARM::VLD4dWB_fixed_Asm_32:
7154 case ARM::VLD4qWB_fixed_Asm_8:
7155 case ARM::VLD4qWB_fixed_Asm_16:
7156 case ARM::VLD4qWB_fixed_Asm_32: {
7159 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
7160 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7161 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7163 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7165 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7167 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7168 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7169 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7170 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
7171 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7172 TmpInst.addOperand(Inst.getOperand(4));
7177 case ARM::VLD4dWB_register_Asm_8:
7178 case ARM::VLD4dWB_register_Asm_16:
7179 case ARM::VLD4dWB_register_Asm_32:
7180 case ARM::VLD4qWB_register_Asm_8:
7181 case ARM::VLD4qWB_register_Asm_16:
7182 case ARM::VLD4qWB_register_Asm_32: {
7185 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
7186 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7187 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7189 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7191 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7193 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7194 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7195 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7196 TmpInst.addOperand(Inst.getOperand(3)); // Rm
7197 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7198 TmpInst.addOperand(Inst.getOperand(5));
7203 // VST3 multiple 3-element structure instructions.
7204 case ARM::VST3dAsm_8:
7205 case ARM::VST3dAsm_16:
7206 case ARM::VST3dAsm_32:
7207 case ARM::VST3qAsm_8:
7208 case ARM::VST3qAsm_16:
7209 case ARM::VST3qAsm_32: {
7212 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7213 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7214 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7215 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7216 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7218 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7220 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7221 TmpInst.addOperand(Inst.getOperand(4));
7226 case ARM::VST3dWB_fixed_Asm_8:
7227 case ARM::VST3dWB_fixed_Asm_16:
7228 case ARM::VST3dWB_fixed_Asm_32:
7229 case ARM::VST3qWB_fixed_Asm_8:
7230 case ARM::VST3qWB_fixed_Asm_16:
7231 case ARM::VST3qWB_fixed_Asm_32: {
7234 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7235 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7236 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7237 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7238 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
7239 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7240 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7242 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7244 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7245 TmpInst.addOperand(Inst.getOperand(4));
7250 case ARM::VST3dWB_register_Asm_8:
7251 case ARM::VST3dWB_register_Asm_16:
7252 case ARM::VST3dWB_register_Asm_32:
7253 case ARM::VST3qWB_register_Asm_8:
7254 case ARM::VST3qWB_register_Asm_16:
7255 case ARM::VST3qWB_register_Asm_32: {
7258 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7259 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7260 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7261 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7262 TmpInst.addOperand(Inst.getOperand(3)); // Rm
7263 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7264 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7266 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7268 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7269 TmpInst.addOperand(Inst.getOperand(5));
7274 // VST4 multiple 3-element structure instructions.
7275 case ARM::VST4dAsm_8:
7276 case ARM::VST4dAsm_16:
7277 case ARM::VST4dAsm_32:
7278 case ARM::VST4qAsm_8:
7279 case ARM::VST4qAsm_16:
7280 case ARM::VST4qAsm_32: {
7283 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7284 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7285 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7286 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7287 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7289 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7291 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7293 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7294 TmpInst.addOperand(Inst.getOperand(4));
7299 case ARM::VST4dWB_fixed_Asm_8:
7300 case ARM::VST4dWB_fixed_Asm_16:
7301 case ARM::VST4dWB_fixed_Asm_32:
7302 case ARM::VST4qWB_fixed_Asm_8:
7303 case ARM::VST4qWB_fixed_Asm_16:
7304 case ARM::VST4qWB_fixed_Asm_32: {
7307 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7308 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7309 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7310 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7311 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
7312 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7313 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7315 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7317 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7319 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7320 TmpInst.addOperand(Inst.getOperand(4));
7325 case ARM::VST4dWB_register_Asm_8:
7326 case ARM::VST4dWB_register_Asm_16:
7327 case ARM::VST4dWB_register_Asm_32:
7328 case ARM::VST4qWB_register_Asm_8:
7329 case ARM::VST4qWB_register_Asm_16:
7330 case ARM::VST4qWB_register_Asm_32: {
7333 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7334 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7335 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7336 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7337 TmpInst.addOperand(Inst.getOperand(3)); // Rm
7338 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7339 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7341 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7343 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7345 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7346 TmpInst.addOperand(Inst.getOperand(5));
7351 // Handle encoding choice for the shift-immediate instructions.
7354 case ARM::t2ASRri: {
7355 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7356 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7357 Inst.getOperand(5).getReg() == (inITBlock() ? 0 : ARM::CPSR) &&
7358 !(static_cast<ARMOperand*>(Operands[3])->isToken() &&
7359 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w")) {
7361 switch (Inst.getOpcode()) {
7362 default: llvm_unreachable("unexpected opcode");
7363 case ARM::t2LSLri: NewOpc = ARM::tLSLri; break;
7364 case ARM::t2LSRri: NewOpc = ARM::tLSRri; break;
7365 case ARM::t2ASRri: NewOpc = ARM::tASRri; break;
7367 // The Thumb1 operands aren't in the same order. Awesome, eh?
7369 TmpInst.setOpcode(NewOpc);
7370 TmpInst.addOperand(Inst.getOperand(0));
7371 TmpInst.addOperand(Inst.getOperand(5));
7372 TmpInst.addOperand(Inst.getOperand(1));
7373 TmpInst.addOperand(Inst.getOperand(2));
7374 TmpInst.addOperand(Inst.getOperand(3));
7375 TmpInst.addOperand(Inst.getOperand(4));
7382 // Handle the Thumb2 mode MOV complex aliases.
7384 case ARM::t2MOVSsr: {
7385 // Which instruction to expand to depends on the CCOut operand and
7386 // whether we're in an IT block if the register operands are low
7388 bool isNarrow = false;
7389 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7390 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7391 isARMLowRegister(Inst.getOperand(2).getReg()) &&
7392 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7393 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsr))
7397 switch(ARM_AM::getSORegShOp(Inst.getOperand(3).getImm())) {
7398 default: llvm_unreachable("unexpected opcode!");
7399 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRrr : ARM::t2ASRrr; break;
7400 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRrr : ARM::t2LSRrr; break;
7401 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLrr : ARM::t2LSLrr; break;
7402 case ARM_AM::ror: newOpc = isNarrow ? ARM::tROR : ARM::t2RORrr; break;
7404 TmpInst.setOpcode(newOpc);
7405 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7407 TmpInst.addOperand(MCOperand::CreateReg(
7408 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
7409 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7410 TmpInst.addOperand(Inst.getOperand(2)); // Rm
7411 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7412 TmpInst.addOperand(Inst.getOperand(5));
7414 TmpInst.addOperand(MCOperand::CreateReg(
7415 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
7420 case ARM::t2MOVSsi: {
7421 // Which instruction to expand to depends on the CCOut operand and
7422 // whether we're in an IT block if the register operands are low
7424 bool isNarrow = false;
7425 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7426 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7427 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsi))
7431 switch(ARM_AM::getSORegShOp(Inst.getOperand(2).getImm())) {
7432 default: llvm_unreachable("unexpected opcode!");
7433 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRri : ARM::t2ASRri; break;
7434 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRri : ARM::t2LSRri; break;
7435 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLri : ARM::t2LSLri; break;
7436 case ARM_AM::ror: newOpc = ARM::t2RORri; isNarrow = false; break;
7437 case ARM_AM::rrx: isNarrow = false; newOpc = ARM::t2RRX; break;
7439 unsigned Amount = ARM_AM::getSORegOffset(Inst.getOperand(2).getImm());
7440 if (Amount == 32) Amount = 0;
7441 TmpInst.setOpcode(newOpc);
7442 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7444 TmpInst.addOperand(MCOperand::CreateReg(
7445 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
7446 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7447 if (newOpc != ARM::t2RRX)
7448 TmpInst.addOperand(MCOperand::CreateImm(Amount));
7449 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7450 TmpInst.addOperand(Inst.getOperand(4));
7452 TmpInst.addOperand(MCOperand::CreateReg(
7453 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
7457 // Handle the ARM mode MOV complex aliases.
7462 ARM_AM::ShiftOpc ShiftTy;
7463 switch(Inst.getOpcode()) {
7464 default: llvm_unreachable("unexpected opcode!");
7465 case ARM::ASRr: ShiftTy = ARM_AM::asr; break;
7466 case ARM::LSRr: ShiftTy = ARM_AM::lsr; break;
7467 case ARM::LSLr: ShiftTy = ARM_AM::lsl; break;
7468 case ARM::RORr: ShiftTy = ARM_AM::ror; break;
7470 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, 0);
7472 TmpInst.setOpcode(ARM::MOVsr);
7473 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7474 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7475 TmpInst.addOperand(Inst.getOperand(2)); // Rm
7476 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7477 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7478 TmpInst.addOperand(Inst.getOperand(4));
7479 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
7487 ARM_AM::ShiftOpc ShiftTy;
7488 switch(Inst.getOpcode()) {
7489 default: llvm_unreachable("unexpected opcode!");
7490 case ARM::ASRi: ShiftTy = ARM_AM::asr; break;
7491 case ARM::LSRi: ShiftTy = ARM_AM::lsr; break;
7492 case ARM::LSLi: ShiftTy = ARM_AM::lsl; break;
7493 case ARM::RORi: ShiftTy = ARM_AM::ror; break;
7495 // A shift by zero is a plain MOVr, not a MOVsi.
7496 unsigned Amt = Inst.getOperand(2).getImm();
7497 unsigned Opc = Amt == 0 ? ARM::MOVr : ARM::MOVsi;
7498 // A shift by 32 should be encoded as 0 when permitted
7499 if (Amt == 32 && (ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr))
7501 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, Amt);
7503 TmpInst.setOpcode(Opc);
7504 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7505 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7506 if (Opc == ARM::MOVsi)
7507 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7508 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7509 TmpInst.addOperand(Inst.getOperand(4));
7510 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
7515 unsigned Shifter = ARM_AM::getSORegOpc(ARM_AM::rrx, 0);
7517 TmpInst.setOpcode(ARM::MOVsi);
7518 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7519 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7520 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7521 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7522 TmpInst.addOperand(Inst.getOperand(3));
7523 TmpInst.addOperand(Inst.getOperand(4)); // cc_out
7527 case ARM::t2LDMIA_UPD: {
7528 // If this is a load of a single register, then we should use
7529 // a post-indexed LDR instruction instead, per the ARM ARM.
7530 if (Inst.getNumOperands() != 5)
7533 TmpInst.setOpcode(ARM::t2LDR_POST);
7534 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7535 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7536 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7537 TmpInst.addOperand(MCOperand::CreateImm(4));
7538 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7539 TmpInst.addOperand(Inst.getOperand(3));
7543 case ARM::t2STMDB_UPD: {
7544 // If this is a store of a single register, then we should use
7545 // a pre-indexed STR instruction instead, per the ARM ARM.
7546 if (Inst.getNumOperands() != 5)
7549 TmpInst.setOpcode(ARM::t2STR_PRE);
7550 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7551 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7552 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7553 TmpInst.addOperand(MCOperand::CreateImm(-4));
7554 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7555 TmpInst.addOperand(Inst.getOperand(3));
7559 case ARM::LDMIA_UPD:
7560 // If this is a load of a single register via a 'pop', then we should use
7561 // a post-indexed LDR instruction instead, per the ARM ARM.
7562 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "pop" &&
7563 Inst.getNumOperands() == 5) {
7565 TmpInst.setOpcode(ARM::LDR_POST_IMM);
7566 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7567 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7568 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7569 TmpInst.addOperand(MCOperand::CreateReg(0)); // am2offset
7570 TmpInst.addOperand(MCOperand::CreateImm(4));
7571 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7572 TmpInst.addOperand(Inst.getOperand(3));
7577 case ARM::STMDB_UPD:
7578 // If this is a store of a single register via a 'push', then we should use
7579 // a pre-indexed STR instruction instead, per the ARM ARM.
7580 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "push" &&
7581 Inst.getNumOperands() == 5) {
7583 TmpInst.setOpcode(ARM::STR_PRE_IMM);
7584 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7585 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7586 TmpInst.addOperand(Inst.getOperand(1)); // addrmode_imm12
7587 TmpInst.addOperand(MCOperand::CreateImm(-4));
7588 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7589 TmpInst.addOperand(Inst.getOperand(3));
7593 case ARM::t2ADDri12:
7594 // If the immediate fits for encoding T3 (t2ADDri) and the generic "add"
7595 // mnemonic was used (not "addw"), encoding T3 is preferred.
7596 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "add" ||
7597 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
7599 Inst.setOpcode(ARM::t2ADDri);
7600 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7602 case ARM::t2SUBri12:
7603 // If the immediate fits for encoding T3 (t2SUBri) and the generic "sub"
7604 // mnemonic was used (not "subw"), encoding T3 is preferred.
7605 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "sub" ||
7606 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
7608 Inst.setOpcode(ARM::t2SUBri);
7609 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7612 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
7613 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
7614 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
7615 // to encoding T1 if <Rd> is omitted."
7616 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
7617 Inst.setOpcode(ARM::tADDi3);
7622 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
7623 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
7624 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
7625 // to encoding T1 if <Rd> is omitted."
7626 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
7627 Inst.setOpcode(ARM::tSUBi3);
7632 case ARM::t2SUBri: {
7633 // If the destination and first source operand are the same, and
7634 // the flags are compatible with the current IT status, use encoding T2
7635 // instead of T3. For compatibility with the system 'as'. Make sure the
7636 // wide encoding wasn't explicit.
7637 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
7638 !isARMLowRegister(Inst.getOperand(0).getReg()) ||
7639 (unsigned)Inst.getOperand(2).getImm() > 255 ||
7640 ((!inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR) ||
7641 (inITBlock() && Inst.getOperand(5).getReg() != 0)) ||
7642 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7643 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
7646 TmpInst.setOpcode(Inst.getOpcode() == ARM::t2ADDri ?
7647 ARM::tADDi8 : ARM::tSUBi8);
7648 TmpInst.addOperand(Inst.getOperand(0));
7649 TmpInst.addOperand(Inst.getOperand(5));
7650 TmpInst.addOperand(Inst.getOperand(0));
7651 TmpInst.addOperand(Inst.getOperand(2));
7652 TmpInst.addOperand(Inst.getOperand(3));
7653 TmpInst.addOperand(Inst.getOperand(4));
7657 case ARM::t2ADDrr: {
7658 // If the destination and first source operand are the same, and
7659 // there's no setting of the flags, use encoding T2 instead of T3.
7660 // Note that this is only for ADD, not SUB. This mirrors the system
7661 // 'as' behaviour. Make sure the wide encoding wasn't explicit.
7662 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
7663 Inst.getOperand(5).getReg() != 0 ||
7664 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7665 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
7668 TmpInst.setOpcode(ARM::tADDhirr);
7669 TmpInst.addOperand(Inst.getOperand(0));
7670 TmpInst.addOperand(Inst.getOperand(0));
7671 TmpInst.addOperand(Inst.getOperand(2));
7672 TmpInst.addOperand(Inst.getOperand(3));
7673 TmpInst.addOperand(Inst.getOperand(4));
7677 case ARM::tADDrSP: {
7678 // If the non-SP source operand and the destination operand are not the
7679 // same, we need to use the 32-bit encoding if it's available.
7680 if (Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
7681 Inst.setOpcode(ARM::t2ADDrr);
7682 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7688 // A Thumb conditional branch outside of an IT block is a tBcc.
7689 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()) {
7690 Inst.setOpcode(ARM::tBcc);
7695 // A Thumb2 conditional branch outside of an IT block is a t2Bcc.
7696 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()){
7697 Inst.setOpcode(ARM::t2Bcc);
7702 // If the conditional is AL or we're in an IT block, we really want t2B.
7703 if (Inst.getOperand(1).getImm() == ARMCC::AL || inITBlock()) {
7704 Inst.setOpcode(ARM::t2B);
7709 // If the conditional is AL, we really want tB.
7710 if (Inst.getOperand(1).getImm() == ARMCC::AL) {
7711 Inst.setOpcode(ARM::tB);
7716 // If the register list contains any high registers, or if the writeback
7717 // doesn't match what tLDMIA can do, we need to use the 32-bit encoding
7718 // instead if we're in Thumb2. Otherwise, this should have generated
7719 // an error in validateInstruction().
7720 unsigned Rn = Inst.getOperand(0).getReg();
7721 bool hasWritebackToken =
7722 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7723 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
7724 bool listContainsBase;
7725 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) ||
7726 (!listContainsBase && !hasWritebackToken) ||
7727 (listContainsBase && hasWritebackToken)) {
7728 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7729 assert (isThumbTwo());
7730 Inst.setOpcode(hasWritebackToken ? ARM::t2LDMIA_UPD : ARM::t2LDMIA);
7731 // If we're switching to the updating version, we need to insert
7732 // the writeback tied operand.
7733 if (hasWritebackToken)
7734 Inst.insert(Inst.begin(),
7735 MCOperand::CreateReg(Inst.getOperand(0).getReg()));
7740 case ARM::tSTMIA_UPD: {
7741 // If the register list contains any high registers, we need to use
7742 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7743 // should have generated an error in validateInstruction().
7744 unsigned Rn = Inst.getOperand(0).getReg();
7745 bool listContainsBase;
7746 if (checkLowRegisterList(Inst, 4, Rn, 0, listContainsBase)) {
7747 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7748 assert (isThumbTwo());
7749 Inst.setOpcode(ARM::t2STMIA_UPD);
7755 bool listContainsBase;
7756 // If the register list contains any high registers, we need to use
7757 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7758 // should have generated an error in validateInstruction().
7759 if (!checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase))
7761 assert (isThumbTwo());
7762 Inst.setOpcode(ARM::t2LDMIA_UPD);
7763 // Add the base register and writeback operands.
7764 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7765 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7769 bool listContainsBase;
7770 if (!checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase))
7772 assert (isThumbTwo());
7773 Inst.setOpcode(ARM::t2STMDB_UPD);
7774 // Add the base register and writeback operands.
7775 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7776 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7780 // If we can use the 16-bit encoding and the user didn't explicitly
7781 // request the 32-bit variant, transform it here.
7782 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7783 (unsigned)Inst.getOperand(1).getImm() <= 255 &&
7784 ((!inITBlock() && Inst.getOperand(2).getImm() == ARMCC::AL &&
7785 Inst.getOperand(4).getReg() == ARM::CPSR) ||
7786 (inITBlock() && Inst.getOperand(4).getReg() == 0)) &&
7787 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7788 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7789 // The operands aren't in the same order for tMOVi8...
7791 TmpInst.setOpcode(ARM::tMOVi8);
7792 TmpInst.addOperand(Inst.getOperand(0));
7793 TmpInst.addOperand(Inst.getOperand(4));
7794 TmpInst.addOperand(Inst.getOperand(1));
7795 TmpInst.addOperand(Inst.getOperand(2));
7796 TmpInst.addOperand(Inst.getOperand(3));
7803 // If we can use the 16-bit encoding and the user didn't explicitly
7804 // request the 32-bit variant, transform it here.
7805 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7806 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7807 Inst.getOperand(2).getImm() == ARMCC::AL &&
7808 Inst.getOperand(4).getReg() == ARM::CPSR &&
7809 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7810 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7811 // The operands aren't the same for tMOV[S]r... (no cc_out)
7813 TmpInst.setOpcode(Inst.getOperand(4).getReg() ? ARM::tMOVSr : ARM::tMOVr);
7814 TmpInst.addOperand(Inst.getOperand(0));
7815 TmpInst.addOperand(Inst.getOperand(1));
7816 TmpInst.addOperand(Inst.getOperand(2));
7817 TmpInst.addOperand(Inst.getOperand(3));
7827 // If we can use the 16-bit encoding and the user didn't explicitly
7828 // request the 32-bit variant, transform it here.
7829 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7830 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7831 Inst.getOperand(2).getImm() == 0 &&
7832 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7833 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7835 switch (Inst.getOpcode()) {
7836 default: llvm_unreachable("Illegal opcode!");
7837 case ARM::t2SXTH: NewOpc = ARM::tSXTH; break;
7838 case ARM::t2SXTB: NewOpc = ARM::tSXTB; break;
7839 case ARM::t2UXTH: NewOpc = ARM::tUXTH; break;
7840 case ARM::t2UXTB: NewOpc = ARM::tUXTB; break;
7842 // The operands aren't the same for thumb1 (no rotate operand).
7844 TmpInst.setOpcode(NewOpc);
7845 TmpInst.addOperand(Inst.getOperand(0));
7846 TmpInst.addOperand(Inst.getOperand(1));
7847 TmpInst.addOperand(Inst.getOperand(3));
7848 TmpInst.addOperand(Inst.getOperand(4));
7855 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(2).getImm());
7856 // rrx shifts and asr/lsr of #32 is encoded as 0
7857 if (SOpc == ARM_AM::rrx || SOpc == ARM_AM::asr || SOpc == ARM_AM::lsr)
7859 if (ARM_AM::getSORegOffset(Inst.getOperand(2).getImm()) == 0) {
7860 // Shifting by zero is accepted as a vanilla 'MOVr'
7862 TmpInst.setOpcode(ARM::MOVr);
7863 TmpInst.addOperand(Inst.getOperand(0));
7864 TmpInst.addOperand(Inst.getOperand(1));
7865 TmpInst.addOperand(Inst.getOperand(3));
7866 TmpInst.addOperand(Inst.getOperand(4));
7867 TmpInst.addOperand(Inst.getOperand(5));
7880 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(3).getImm());
7881 if (SOpc == ARM_AM::rrx) return false;
7882 switch (Inst.getOpcode()) {
7883 default: llvm_unreachable("unexpected opcode!");
7884 case ARM::ANDrsi: newOpc = ARM::ANDrr; break;
7885 case ARM::ORRrsi: newOpc = ARM::ORRrr; break;
7886 case ARM::EORrsi: newOpc = ARM::EORrr; break;
7887 case ARM::BICrsi: newOpc = ARM::BICrr; break;
7888 case ARM::SUBrsi: newOpc = ARM::SUBrr; break;
7889 case ARM::ADDrsi: newOpc = ARM::ADDrr; break;
7891 // If the shift is by zero, use the non-shifted instruction definition.
7892 // The exception is for right shifts, where 0 == 32
7893 if (ARM_AM::getSORegOffset(Inst.getOperand(3).getImm()) == 0 &&
7894 !(SOpc == ARM_AM::lsr || SOpc == ARM_AM::asr)) {
7896 TmpInst.setOpcode(newOpc);
7897 TmpInst.addOperand(Inst.getOperand(0));
7898 TmpInst.addOperand(Inst.getOperand(1));
7899 TmpInst.addOperand(Inst.getOperand(2));
7900 TmpInst.addOperand(Inst.getOperand(4));
7901 TmpInst.addOperand(Inst.getOperand(5));
7902 TmpInst.addOperand(Inst.getOperand(6));
7910 // The mask bits for all but the first condition are represented as
7911 // the low bit of the condition code value implies 't'. We currently
7912 // always have 1 implies 't', so XOR toggle the bits if the low bit
7913 // of the condition code is zero.
7914 MCOperand &MO = Inst.getOperand(1);
7915 unsigned Mask = MO.getImm();
7916 unsigned OrigMask = Mask;
7917 unsigned TZ = countTrailingZeros(Mask);
7918 if ((Inst.getOperand(0).getImm() & 1) == 0) {
7919 assert(Mask && TZ <= 3 && "illegal IT mask value!");
7920 Mask ^= (0xE << TZ) & 0xF;
7924 // Set up the IT block state according to the IT instruction we just
7926 assert(!inITBlock() && "nested IT blocks?!");
7927 ITState.Cond = ARMCC::CondCodes(Inst.getOperand(0).getImm());
7928 ITState.Mask = OrigMask; // Use the original mask, not the updated one.
7929 ITState.CurPosition = 0;
7930 ITState.FirstCond = true;
7940 // Assemblers should use the narrow encodings of these instructions when permissible.
7941 if ((isARMLowRegister(Inst.getOperand(1).getReg()) &&
7942 isARMLowRegister(Inst.getOperand(2).getReg())) &&
7943 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7944 ((!inITBlock() && Inst.getOperand(5).getReg() == ARM::CPSR) ||
7945 (inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR)) &&
7946 (!static_cast<ARMOperand*>(Operands[3])->isToken() ||
7947 !static_cast<ARMOperand*>(Operands[3])->getToken().equals_lower(".w"))) {
7949 switch (Inst.getOpcode()) {
7950 default: llvm_unreachable("unexpected opcode");
7951 case ARM::t2LSLrr: NewOpc = ARM::tLSLrr; break;
7952 case ARM::t2LSRrr: NewOpc = ARM::tLSRrr; break;
7953 case ARM::t2ASRrr: NewOpc = ARM::tASRrr; break;
7954 case ARM::t2SBCrr: NewOpc = ARM::tSBC; break;
7955 case ARM::t2RORrr: NewOpc = ARM::tROR; break;
7956 case ARM::t2BICrr: NewOpc = ARM::tBIC; break;
7959 TmpInst.setOpcode(NewOpc);
7960 TmpInst.addOperand(Inst.getOperand(0));
7961 TmpInst.addOperand(Inst.getOperand(5));
7962 TmpInst.addOperand(Inst.getOperand(1));
7963 TmpInst.addOperand(Inst.getOperand(2));
7964 TmpInst.addOperand(Inst.getOperand(3));
7965 TmpInst.addOperand(Inst.getOperand(4));
7976 // Assemblers should use the narrow encodings of these instructions when permissible.
7977 // These instructions are special in that they are commutable, so shorter encodings
7978 // are available more often.
7979 if ((isARMLowRegister(Inst.getOperand(1).getReg()) &&
7980 isARMLowRegister(Inst.getOperand(2).getReg())) &&
7981 (Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() ||
7982 Inst.getOperand(0).getReg() == Inst.getOperand(2).getReg()) &&
7983 ((!inITBlock() && Inst.getOperand(5).getReg() == ARM::CPSR) ||
7984 (inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR)) &&
7985 (!static_cast<ARMOperand*>(Operands[3])->isToken() ||
7986 !static_cast<ARMOperand*>(Operands[3])->getToken().equals_lower(".w"))) {
7988 switch (Inst.getOpcode()) {
7989 default: llvm_unreachable("unexpected opcode");
7990 case ARM::t2ADCrr: NewOpc = ARM::tADC; break;
7991 case ARM::t2ANDrr: NewOpc = ARM::tAND; break;
7992 case ARM::t2EORrr: NewOpc = ARM::tEOR; break;
7993 case ARM::t2ORRrr: NewOpc = ARM::tORR; break;
7996 TmpInst.setOpcode(NewOpc);
7997 TmpInst.addOperand(Inst.getOperand(0));
7998 TmpInst.addOperand(Inst.getOperand(5));
7999 if (Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg()) {
8000 TmpInst.addOperand(Inst.getOperand(1));
8001 TmpInst.addOperand(Inst.getOperand(2));
8003 TmpInst.addOperand(Inst.getOperand(2));
8004 TmpInst.addOperand(Inst.getOperand(1));
8006 TmpInst.addOperand(Inst.getOperand(3));
8007 TmpInst.addOperand(Inst.getOperand(4));
8017 unsigned ARMAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
8018 // 16-bit thumb arithmetic instructions either require or preclude the 'S'
8019 // suffix depending on whether they're in an IT block or not.
8020 unsigned Opc = Inst.getOpcode();
8021 const MCInstrDesc &MCID = MII.get(Opc);
8022 if (MCID.TSFlags & ARMII::ThumbArithFlagSetting) {
8023 assert(MCID.hasOptionalDef() &&
8024 "optionally flag setting instruction missing optional def operand");
8025 assert(MCID.NumOperands == Inst.getNumOperands() &&
8026 "operand count mismatch!");
8027 // Find the optional-def operand (cc_out).
8030 !MCID.OpInfo[OpNo].isOptionalDef() && OpNo < MCID.NumOperands;
8033 // If we're parsing Thumb1, reject it completely.
8034 if (isThumbOne() && Inst.getOperand(OpNo).getReg() != ARM::CPSR)
8035 return Match_MnemonicFail;
8036 // If we're parsing Thumb2, which form is legal depends on whether we're
8038 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() != ARM::CPSR &&
8040 return Match_RequiresITBlock;
8041 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() == ARM::CPSR &&
8043 return Match_RequiresNotITBlock;
8045 // Some high-register supporting Thumb1 encodings only allow both registers
8046 // to be from r0-r7 when in Thumb2.
8047 else if (Opc == ARM::tADDhirr && isThumbOne() &&
8048 isARMLowRegister(Inst.getOperand(1).getReg()) &&
8049 isARMLowRegister(Inst.getOperand(2).getReg()))
8050 return Match_RequiresThumb2;
8051 // Others only require ARMv6 or later.
8052 else if (Opc == ARM::tMOVr && isThumbOne() && !hasV6Ops() &&
8053 isARMLowRegister(Inst.getOperand(0).getReg()) &&
8054 isARMLowRegister(Inst.getOperand(1).getReg()))
8055 return Match_RequiresV6;
8056 return Match_Success;
8060 template <> inline bool IsCPSRDead<MCInst>(MCInst *Instr) {
8061 return true; // In an assembly source, no need to second-guess
8065 static const char *getSubtargetFeatureName(unsigned Val);
8067 MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
8068 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
8069 MCStreamer &Out, unsigned &ErrorInfo,
8070 bool MatchingInlineAsm) {
8072 unsigned MatchResult;
8074 MatchResult = MatchInstructionImpl(Operands, Inst, ErrorInfo,
8076 switch (MatchResult) {
8079 // Context sensitive operand constraints aren't handled by the matcher,
8080 // so check them here.
8081 if (validateInstruction(Inst, Operands)) {
8082 // Still progress the IT block, otherwise one wrong condition causes
8083 // nasty cascading errors.
8084 forwardITPosition();
8088 { // processInstruction() updates inITBlock state, we need to save it away
8089 bool wasInITBlock = inITBlock();
8091 // Some instructions need post-processing to, for example, tweak which
8092 // encoding is selected. Loop on it while changes happen so the
8093 // individual transformations can chain off each other. E.g.,
8094 // tPOP(r8)->t2LDMIA_UPD(sp,r8)->t2STR_POST(sp,r8)
8095 while (processInstruction(Inst, Operands))
8098 // Only after the instruction is fully processed, we can validate it
8099 if (wasInITBlock && hasV8Ops() && isThumb() &&
8100 !isV8EligibleForIT(&Inst)) {
8101 Warning(IDLoc, "deprecated instruction in IT block");
8105 // Only move forward at the very end so that everything in validate
8106 // and process gets a consistent answer about whether we're in an IT
8108 forwardITPosition();
8110 // ITasm is an ARM mode pseudo-instruction that just sets the ITblock and
8111 // doesn't actually encode.
8112 if (Inst.getOpcode() == ARM::ITasm)
8116 Out.EmitInstruction(Inst, STI);
8118 case Match_MissingFeature: {
8119 assert(ErrorInfo && "Unknown missing feature!");
8120 // Special case the error message for the very common case where only
8121 // a single subtarget feature is missing (Thumb vs. ARM, e.g.).
8122 std::string Msg = "instruction requires:";
8124 for (unsigned i = 0; i < (sizeof(ErrorInfo)*8-1); ++i) {
8125 if (ErrorInfo & Mask) {
8127 Msg += getSubtargetFeatureName(ErrorInfo & Mask);
8131 return Error(IDLoc, Msg);
8133 case Match_InvalidOperand: {
8134 SMLoc ErrorLoc = IDLoc;
8135 if (ErrorInfo != ~0U) {
8136 if (ErrorInfo >= Operands.size())
8137 return Error(IDLoc, "too few operands for instruction");
8139 ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
8140 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
8143 return Error(ErrorLoc, "invalid operand for instruction");
8145 case Match_MnemonicFail:
8146 return Error(IDLoc, "invalid instruction",
8147 ((ARMOperand*)Operands[0])->getLocRange());
8148 case Match_RequiresNotITBlock:
8149 return Error(IDLoc, "flag setting instruction only valid outside IT block");
8150 case Match_RequiresITBlock:
8151 return Error(IDLoc, "instruction only valid inside IT block");
8152 case Match_RequiresV6:
8153 return Error(IDLoc, "instruction variant requires ARMv6 or later");
8154 case Match_RequiresThumb2:
8155 return Error(IDLoc, "instruction variant requires Thumb2");
8156 case Match_ImmRange0_15: {
8157 SMLoc ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
8158 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
8159 return Error(ErrorLoc, "immediate operand must be in the range [0,15]");
8161 case Match_ImmRange0_239: {
8162 SMLoc ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
8163 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
8164 return Error(ErrorLoc, "immediate operand must be in the range [0,239]");
8166 case Match_AlignedMemoryRequiresNone:
8167 case Match_DupAlignedMemoryRequiresNone:
8168 case Match_AlignedMemoryRequires16:
8169 case Match_DupAlignedMemoryRequires16:
8170 case Match_AlignedMemoryRequires32:
8171 case Match_DupAlignedMemoryRequires32:
8172 case Match_AlignedMemoryRequires64:
8173 case Match_DupAlignedMemoryRequires64:
8174 case Match_AlignedMemoryRequires64or128:
8175 case Match_DupAlignedMemoryRequires64or128:
8176 case Match_AlignedMemoryRequires64or128or256:
8178 SMLoc ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getAlignmentLoc();
8179 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
8180 switch (MatchResult) {
8182 llvm_unreachable("Missing Match_Aligned type");
8183 case Match_AlignedMemoryRequiresNone:
8184 case Match_DupAlignedMemoryRequiresNone:
8185 return Error(ErrorLoc, "alignment must be omitted");
8186 case Match_AlignedMemoryRequires16:
8187 case Match_DupAlignedMemoryRequires16:
8188 return Error(ErrorLoc, "alignment must be 16 or omitted");
8189 case Match_AlignedMemoryRequires32:
8190 case Match_DupAlignedMemoryRequires32:
8191 return Error(ErrorLoc, "alignment must be 32 or omitted");
8192 case Match_AlignedMemoryRequires64:
8193 case Match_DupAlignedMemoryRequires64:
8194 return Error(ErrorLoc, "alignment must be 64 or omitted");
8195 case Match_AlignedMemoryRequires64or128:
8196 case Match_DupAlignedMemoryRequires64or128:
8197 return Error(ErrorLoc, "alignment must be 64, 128 or omitted");
8198 case Match_AlignedMemoryRequires64or128or256:
8199 return Error(ErrorLoc, "alignment must be 64, 128, 256 or omitted");
8204 llvm_unreachable("Implement any new match types added!");
8207 /// parseDirective parses the arm specific directives
8208 bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) {
8209 const MCObjectFileInfo::Environment Format =
8210 getContext().getObjectFileInfo()->getObjectFileType();
8211 bool IsMachO = Format == MCObjectFileInfo::IsMachO;
8213 StringRef IDVal = DirectiveID.getIdentifier();
8214 if (IDVal == ".word")
8215 return parseLiteralValues(4, DirectiveID.getLoc());
8216 else if (IDVal == ".short" || IDVal == ".hword")
8217 return parseLiteralValues(2, DirectiveID.getLoc());
8218 else if (IDVal == ".thumb")
8219 return parseDirectiveThumb(DirectiveID.getLoc());
8220 else if (IDVal == ".arm")
8221 return parseDirectiveARM(DirectiveID.getLoc());
8222 else if (IDVal == ".thumb_func")
8223 return parseDirectiveThumbFunc(DirectiveID.getLoc());
8224 else if (IDVal == ".code")
8225 return parseDirectiveCode(DirectiveID.getLoc());
8226 else if (IDVal == ".syntax")
8227 return parseDirectiveSyntax(DirectiveID.getLoc());
8228 else if (IDVal == ".unreq")
8229 return parseDirectiveUnreq(DirectiveID.getLoc());
8230 else if (IDVal == ".fnend")
8231 return parseDirectiveFnEnd(DirectiveID.getLoc());
8232 else if (IDVal == ".cantunwind")
8233 return parseDirectiveCantUnwind(DirectiveID.getLoc());
8234 else if (IDVal == ".personality")
8235 return parseDirectivePersonality(DirectiveID.getLoc());
8236 else if (IDVal == ".handlerdata")
8237 return parseDirectiveHandlerData(DirectiveID.getLoc());
8238 else if (IDVal == ".setfp")
8239 return parseDirectiveSetFP(DirectiveID.getLoc());
8240 else if (IDVal == ".pad")
8241 return parseDirectivePad(DirectiveID.getLoc());
8242 else if (IDVal == ".save")
8243 return parseDirectiveRegSave(DirectiveID.getLoc(), false);
8244 else if (IDVal == ".vsave")
8245 return parseDirectiveRegSave(DirectiveID.getLoc(), true);
8246 else if (IDVal == ".ltorg" || IDVal == ".pool")
8247 return parseDirectiveLtorg(DirectiveID.getLoc());
8248 else if (IDVal == ".even")
8249 return parseDirectiveEven(DirectiveID.getLoc());
8250 else if (IDVal == ".personalityindex")
8251 return parseDirectivePersonalityIndex(DirectiveID.getLoc());
8252 else if (IDVal == ".unwind_raw")
8253 return parseDirectiveUnwindRaw(DirectiveID.getLoc());
8254 else if (IDVal == ".movsp")
8255 return parseDirectiveMovSP(DirectiveID.getLoc());
8256 else if (IDVal == ".arch_extension")
8257 return parseDirectiveArchExtension(DirectiveID.getLoc());
8258 else if (IDVal == ".align")
8259 return parseDirectiveAlign(DirectiveID.getLoc());
8260 else if (IDVal == ".thumb_set")
8261 return parseDirectiveThumbSet(DirectiveID.getLoc());
8264 if (IDVal == ".arch")
8265 return parseDirectiveArch(DirectiveID.getLoc());
8266 else if (IDVal == ".cpu")
8267 return parseDirectiveCPU(DirectiveID.getLoc());
8268 else if (IDVal == ".eabi_attribute")
8269 return parseDirectiveEabiAttr(DirectiveID.getLoc());
8270 else if (IDVal == ".fpu")
8271 return parseDirectiveFPU(DirectiveID.getLoc());
8272 else if (IDVal == ".fnstart")
8273 return parseDirectiveFnStart(DirectiveID.getLoc());
8274 else if (IDVal == ".inst")
8275 return parseDirectiveInst(DirectiveID.getLoc());
8276 else if (IDVal == ".inst.n")
8277 return parseDirectiveInst(DirectiveID.getLoc(), 'n');
8278 else if (IDVal == ".inst.w")
8279 return parseDirectiveInst(DirectiveID.getLoc(), 'w');
8280 else if (IDVal == ".object_arch")
8281 return parseDirectiveObjectArch(DirectiveID.getLoc());
8282 else if (IDVal == ".tlsdescseq")
8283 return parseDirectiveTLSDescSeq(DirectiveID.getLoc());
8289 /// parseLiteralValues
8290 /// ::= .hword expression [, expression]*
8291 /// ::= .short expression [, expression]*
8292 /// ::= .word expression [, expression]*
8293 bool ARMAsmParser::parseLiteralValues(unsigned Size, SMLoc L) {
8294 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8296 const MCExpr *Value;
8297 if (getParser().parseExpression(Value)) {
8298 Parser.eatToEndOfStatement();
8302 getParser().getStreamer().EmitValue(Value, Size);
8304 if (getLexer().is(AsmToken::EndOfStatement))
8307 // FIXME: Improve diagnostic.
8308 if (getLexer().isNot(AsmToken::Comma)) {
8309 Error(L, "unexpected token in directive");
8320 /// parseDirectiveThumb
8322 bool ARMAsmParser::parseDirectiveThumb(SMLoc L) {
8323 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8324 Error(L, "unexpected token in directive");
8330 Error(L, "target does not support Thumb mode");
8337 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
8341 /// parseDirectiveARM
8343 bool ARMAsmParser::parseDirectiveARM(SMLoc L) {
8344 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8345 Error(L, "unexpected token in directive");
8351 Error(L, "target does not support ARM mode");
8358 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
8362 void ARMAsmParser::onLabelParsed(MCSymbol *Symbol) {
8363 if (NextSymbolIsThumb) {
8364 getParser().getStreamer().EmitThumbFunc(Symbol);
8365 NextSymbolIsThumb = false;
8372 const MCObjectFileInfo::Environment Format =
8373 getContext().getObjectFileInfo()->getObjectFileType();
8375 case MCObjectFileInfo::IsCOFF: {
8376 const MCSymbolData &SD =
8377 getParser().getStreamer().getOrCreateSymbolData(Symbol);
8378 char Type = COFF::IMAGE_SYM_DTYPE_FUNCTION << COFF::SCT_COMPLEX_TYPE_SHIFT;
8379 if (SD.getFlags() & (Type << COFF::SF_TypeShift))
8380 getParser().getStreamer().EmitThumbFunc(Symbol);
8383 case MCObjectFileInfo::IsELF: {
8384 const MCSymbolData &SD =
8385 getParser().getStreamer().getOrCreateSymbolData(Symbol);
8386 if (MCELF::GetType(SD) & (ELF::STT_FUNC << ELF_STT_Shift))
8387 getParser().getStreamer().EmitThumbFunc(Symbol);
8390 case MCObjectFileInfo::IsMachO:
8395 /// parseDirectiveThumbFunc
8396 /// ::= .thumbfunc symbol_name
8397 bool ARMAsmParser::parseDirectiveThumbFunc(SMLoc L) {
8398 const MCAsmInfo *MAI = getParser().getStreamer().getContext().getAsmInfo();
8399 bool isMachO = MAI->hasSubsectionsViaSymbols();
8401 // Darwin asm has (optionally) function name after .thumb_func direction
8404 const AsmToken &Tok = Parser.getTok();
8405 if (Tok.isNot(AsmToken::EndOfStatement)) {
8406 if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String)) {
8407 Error(L, "unexpected token in .thumb_func directive");
8412 getParser().getContext().GetOrCreateSymbol(Tok.getIdentifier());
8413 getParser().getStreamer().EmitThumbFunc(Func);
8414 Parser.Lex(); // Consume the identifier token.
8419 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8420 Error(L, "unexpected token in directive");
8424 NextSymbolIsThumb = true;
8428 /// parseDirectiveSyntax
8429 /// ::= .syntax unified | divided
8430 bool ARMAsmParser::parseDirectiveSyntax(SMLoc L) {
8431 const AsmToken &Tok = Parser.getTok();
8432 if (Tok.isNot(AsmToken::Identifier)) {
8433 Error(L, "unexpected token in .syntax directive");
8437 StringRef Mode = Tok.getString();
8438 if (Mode == "unified" || Mode == "UNIFIED") {
8440 } else if (Mode == "divided" || Mode == "DIVIDED") {
8441 Error(L, "'.syntax divided' arm asssembly not supported");
8444 Error(L, "unrecognized syntax mode in .syntax directive");
8448 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8449 Error(Parser.getTok().getLoc(), "unexpected token in directive");
8454 // TODO tell the MC streamer the mode
8455 // getParser().getStreamer().Emit???();
8459 /// parseDirectiveCode
8460 /// ::= .code 16 | 32
8461 bool ARMAsmParser::parseDirectiveCode(SMLoc L) {
8462 const AsmToken &Tok = Parser.getTok();
8463 if (Tok.isNot(AsmToken::Integer)) {
8464 Error(L, "unexpected token in .code directive");
8467 int64_t Val = Parser.getTok().getIntVal();
8468 if (Val != 16 && Val != 32) {
8469 Error(L, "invalid operand to .code directive");
8474 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8475 Error(Parser.getTok().getLoc(), "unexpected token in directive");
8482 Error(L, "target does not support Thumb mode");
8488 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
8491 Error(L, "target does not support ARM mode");
8497 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
8503 /// parseDirectiveReq
8504 /// ::= name .req registername
8505 bool ARMAsmParser::parseDirectiveReq(StringRef Name, SMLoc L) {
8506 Parser.Lex(); // Eat the '.req' token.
8508 SMLoc SRegLoc, ERegLoc;
8509 if (ParseRegister(Reg, SRegLoc, ERegLoc)) {
8510 Parser.eatToEndOfStatement();
8511 Error(SRegLoc, "register name expected");
8515 // Shouldn't be anything else.
8516 if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
8517 Parser.eatToEndOfStatement();
8518 Error(Parser.getTok().getLoc(), "unexpected input in .req directive.");
8522 Parser.Lex(); // Consume the EndOfStatement
8524 if (RegisterReqs.GetOrCreateValue(Name, Reg).getValue() != Reg) {
8525 Error(SRegLoc, "redefinition of '" + Name + "' does not match original.");
8532 /// parseDirectiveUneq
8533 /// ::= .unreq registername
8534 bool ARMAsmParser::parseDirectiveUnreq(SMLoc L) {
8535 if (Parser.getTok().isNot(AsmToken::Identifier)) {
8536 Parser.eatToEndOfStatement();
8537 Error(L, "unexpected input in .unreq directive.");
8540 RegisterReqs.erase(Parser.getTok().getIdentifier().lower());
8541 Parser.Lex(); // Eat the identifier.
8545 /// parseDirectiveArch
8547 bool ARMAsmParser::parseDirectiveArch(SMLoc L) {
8548 StringRef Arch = getParser().parseStringToEndOfStatement().trim();
8550 unsigned ID = StringSwitch<unsigned>(Arch)
8551 #define ARM_ARCH_NAME(NAME, ID, DEFAULT_CPU_NAME, DEFAULT_CPU_ARCH) \
8552 .Case(NAME, ARM::ID)
8553 #define ARM_ARCH_ALIAS(NAME, ID) \
8554 .Case(NAME, ARM::ID)
8555 #include "MCTargetDesc/ARMArchName.def"
8556 .Default(ARM::INVALID_ARCH);
8558 if (ID == ARM::INVALID_ARCH) {
8559 Error(L, "Unknown arch name");
8563 getTargetStreamer().emitArch(ID);
8567 /// parseDirectiveEabiAttr
8568 /// ::= .eabi_attribute int, int [, "str"]
8569 /// ::= .eabi_attribute Tag_name, int [, "str"]
8570 bool ARMAsmParser::parseDirectiveEabiAttr(SMLoc L) {
8573 TagLoc = Parser.getTok().getLoc();
8574 if (Parser.getTok().is(AsmToken::Identifier)) {
8575 StringRef Name = Parser.getTok().getIdentifier();
8576 Tag = ARMBuildAttrs::AttrTypeFromString(Name);
8578 Error(TagLoc, "attribute name not recognised: " + Name);
8579 Parser.eatToEndOfStatement();
8584 const MCExpr *AttrExpr;
8586 TagLoc = Parser.getTok().getLoc();
8587 if (Parser.parseExpression(AttrExpr)) {
8588 Parser.eatToEndOfStatement();
8592 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(AttrExpr);
8594 Error(TagLoc, "expected numeric constant");
8595 Parser.eatToEndOfStatement();
8599 Tag = CE->getValue();
8602 if (Parser.getTok().isNot(AsmToken::Comma)) {
8603 Error(Parser.getTok().getLoc(), "comma expected");
8604 Parser.eatToEndOfStatement();
8607 Parser.Lex(); // skip comma
8609 StringRef StringValue = "";
8610 bool IsStringValue = false;
8612 int64_t IntegerValue = 0;
8613 bool IsIntegerValue = false;
8615 if (Tag == ARMBuildAttrs::CPU_raw_name || Tag == ARMBuildAttrs::CPU_name)
8616 IsStringValue = true;
8617 else if (Tag == ARMBuildAttrs::compatibility) {
8618 IsStringValue = true;
8619 IsIntegerValue = true;
8620 } else if (Tag < 32 || Tag % 2 == 0)
8621 IsIntegerValue = true;
8622 else if (Tag % 2 == 1)
8623 IsStringValue = true;
8625 llvm_unreachable("invalid tag type");
8627 if (IsIntegerValue) {
8628 const MCExpr *ValueExpr;
8629 SMLoc ValueExprLoc = Parser.getTok().getLoc();
8630 if (Parser.parseExpression(ValueExpr)) {
8631 Parser.eatToEndOfStatement();
8635 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ValueExpr);
8637 Error(ValueExprLoc, "expected numeric constant");
8638 Parser.eatToEndOfStatement();
8642 IntegerValue = CE->getValue();
8645 if (Tag == ARMBuildAttrs::compatibility) {
8646 if (Parser.getTok().isNot(AsmToken::Comma))
8647 IsStringValue = false;
8652 if (IsStringValue) {
8653 if (Parser.getTok().isNot(AsmToken::String)) {
8654 Error(Parser.getTok().getLoc(), "bad string constant");
8655 Parser.eatToEndOfStatement();
8659 StringValue = Parser.getTok().getStringContents();
8663 if (IsIntegerValue && IsStringValue) {
8664 assert(Tag == ARMBuildAttrs::compatibility);
8665 getTargetStreamer().emitIntTextAttribute(Tag, IntegerValue, StringValue);
8666 } else if (IsIntegerValue)
8667 getTargetStreamer().emitAttribute(Tag, IntegerValue);
8668 else if (IsStringValue)
8669 getTargetStreamer().emitTextAttribute(Tag, StringValue);
8673 /// parseDirectiveCPU
8675 bool ARMAsmParser::parseDirectiveCPU(SMLoc L) {
8676 StringRef CPU = getParser().parseStringToEndOfStatement().trim();
8677 getTargetStreamer().emitTextAttribute(ARMBuildAttrs::CPU_name, CPU);
8681 /// parseDirectiveFPU
8683 bool ARMAsmParser::parseDirectiveFPU(SMLoc L) {
8684 StringRef FPU = getParser().parseStringToEndOfStatement().trim();
8686 unsigned ID = StringSwitch<unsigned>(FPU)
8687 #define ARM_FPU_NAME(NAME, ID) .Case(NAME, ARM::ID)
8688 #include "ARMFPUName.def"
8689 .Default(ARM::INVALID_FPU);
8691 if (ID == ARM::INVALID_FPU) {
8692 Error(L, "Unknown FPU name");
8696 getTargetStreamer().emitFPU(ID);
8700 /// parseDirectiveFnStart
8702 bool ARMAsmParser::parseDirectiveFnStart(SMLoc L) {
8703 if (UC.hasFnStart()) {
8704 Error(L, ".fnstart starts before the end of previous one");
8705 UC.emitFnStartLocNotes();
8709 // Reset the unwind directives parser state
8712 getTargetStreamer().emitFnStart();
8714 UC.recordFnStart(L);
8718 /// parseDirectiveFnEnd
8720 bool ARMAsmParser::parseDirectiveFnEnd(SMLoc L) {
8721 // Check the ordering of unwind directives
8722 if (!UC.hasFnStart()) {
8723 Error(L, ".fnstart must precede .fnend directive");
8727 // Reset the unwind directives parser state
8728 getTargetStreamer().emitFnEnd();
8734 /// parseDirectiveCantUnwind
8736 bool ARMAsmParser::parseDirectiveCantUnwind(SMLoc L) {
8737 UC.recordCantUnwind(L);
8739 // Check the ordering of unwind directives
8740 if (!UC.hasFnStart()) {
8741 Error(L, ".fnstart must precede .cantunwind directive");
8744 if (UC.hasHandlerData()) {
8745 Error(L, ".cantunwind can't be used with .handlerdata directive");
8746 UC.emitHandlerDataLocNotes();
8749 if (UC.hasPersonality()) {
8750 Error(L, ".cantunwind can't be used with .personality directive");
8751 UC.emitPersonalityLocNotes();
8755 getTargetStreamer().emitCantUnwind();
8759 /// parseDirectivePersonality
8760 /// ::= .personality name
8761 bool ARMAsmParser::parseDirectivePersonality(SMLoc L) {
8762 bool HasExistingPersonality = UC.hasPersonality();
8764 UC.recordPersonality(L);
8766 // Check the ordering of unwind directives
8767 if (!UC.hasFnStart()) {
8768 Error(L, ".fnstart must precede .personality directive");
8771 if (UC.cantUnwind()) {
8772 Error(L, ".personality can't be used with .cantunwind directive");
8773 UC.emitCantUnwindLocNotes();
8776 if (UC.hasHandlerData()) {
8777 Error(L, ".personality must precede .handlerdata directive");
8778 UC.emitHandlerDataLocNotes();
8781 if (HasExistingPersonality) {
8782 Parser.eatToEndOfStatement();
8783 Error(L, "multiple personality directives");
8784 UC.emitPersonalityLocNotes();
8788 // Parse the name of the personality routine
8789 if (Parser.getTok().isNot(AsmToken::Identifier)) {
8790 Parser.eatToEndOfStatement();
8791 Error(L, "unexpected input in .personality directive.");
8794 StringRef Name(Parser.getTok().getIdentifier());
8797 MCSymbol *PR = getParser().getContext().GetOrCreateSymbol(Name);
8798 getTargetStreamer().emitPersonality(PR);
8802 /// parseDirectiveHandlerData
8803 /// ::= .handlerdata
8804 bool ARMAsmParser::parseDirectiveHandlerData(SMLoc L) {
8805 UC.recordHandlerData(L);
8807 // Check the ordering of unwind directives
8808 if (!UC.hasFnStart()) {
8809 Error(L, ".fnstart must precede .personality directive");
8812 if (UC.cantUnwind()) {
8813 Error(L, ".handlerdata can't be used with .cantunwind directive");
8814 UC.emitCantUnwindLocNotes();
8818 getTargetStreamer().emitHandlerData();
8822 /// parseDirectiveSetFP
8823 /// ::= .setfp fpreg, spreg [, offset]
8824 bool ARMAsmParser::parseDirectiveSetFP(SMLoc L) {
8825 // Check the ordering of unwind directives
8826 if (!UC.hasFnStart()) {
8827 Error(L, ".fnstart must precede .setfp directive");
8830 if (UC.hasHandlerData()) {
8831 Error(L, ".setfp must precede .handlerdata directive");
8836 SMLoc FPRegLoc = Parser.getTok().getLoc();
8837 int FPReg = tryParseRegister();
8839 Error(FPRegLoc, "frame pointer register expected");
8844 if (Parser.getTok().isNot(AsmToken::Comma)) {
8845 Error(Parser.getTok().getLoc(), "comma expected");
8848 Parser.Lex(); // skip comma
8851 SMLoc SPRegLoc = Parser.getTok().getLoc();
8852 int SPReg = tryParseRegister();
8854 Error(SPRegLoc, "stack pointer register expected");
8858 if (SPReg != ARM::SP && SPReg != UC.getFPReg()) {
8859 Error(SPRegLoc, "register should be either $sp or the latest fp register");
8863 // Update the frame pointer register
8864 UC.saveFPReg(FPReg);
8868 if (Parser.getTok().is(AsmToken::Comma)) {
8869 Parser.Lex(); // skip comma
8871 if (Parser.getTok().isNot(AsmToken::Hash) &&
8872 Parser.getTok().isNot(AsmToken::Dollar)) {
8873 Error(Parser.getTok().getLoc(), "'#' expected");
8876 Parser.Lex(); // skip hash token.
8878 const MCExpr *OffsetExpr;
8879 SMLoc ExLoc = Parser.getTok().getLoc();
8881 if (getParser().parseExpression(OffsetExpr, EndLoc)) {
8882 Error(ExLoc, "malformed setfp offset");
8885 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8887 Error(ExLoc, "setfp offset must be an immediate");
8891 Offset = CE->getValue();
8894 getTargetStreamer().emitSetFP(static_cast<unsigned>(FPReg),
8895 static_cast<unsigned>(SPReg), Offset);
8901 bool ARMAsmParser::parseDirectivePad(SMLoc L) {
8902 // Check the ordering of unwind directives
8903 if (!UC.hasFnStart()) {
8904 Error(L, ".fnstart must precede .pad directive");
8907 if (UC.hasHandlerData()) {
8908 Error(L, ".pad must precede .handlerdata directive");
8913 if (Parser.getTok().isNot(AsmToken::Hash) &&
8914 Parser.getTok().isNot(AsmToken::Dollar)) {
8915 Error(Parser.getTok().getLoc(), "'#' expected");
8918 Parser.Lex(); // skip hash token.
8920 const MCExpr *OffsetExpr;
8921 SMLoc ExLoc = Parser.getTok().getLoc();
8923 if (getParser().parseExpression(OffsetExpr, EndLoc)) {
8924 Error(ExLoc, "malformed pad offset");
8927 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8929 Error(ExLoc, "pad offset must be an immediate");
8933 getTargetStreamer().emitPad(CE->getValue());
8937 /// parseDirectiveRegSave
8938 /// ::= .save { registers }
8939 /// ::= .vsave { registers }
8940 bool ARMAsmParser::parseDirectiveRegSave(SMLoc L, bool IsVector) {
8941 // Check the ordering of unwind directives
8942 if (!UC.hasFnStart()) {
8943 Error(L, ".fnstart must precede .save or .vsave directives");
8946 if (UC.hasHandlerData()) {
8947 Error(L, ".save or .vsave must precede .handlerdata directive");
8951 // RAII object to make sure parsed operands are deleted.
8952 struct CleanupObject {
8953 SmallVector<MCParsedAsmOperand *, 1> Operands;
8955 for (unsigned I = 0, E = Operands.size(); I != E; ++I)
8960 // Parse the register list
8961 if (parseRegisterList(CO.Operands))
8963 ARMOperand *Op = (ARMOperand*)CO.Operands[0];
8964 if (!IsVector && !Op->isRegList()) {
8965 Error(L, ".save expects GPR registers");
8968 if (IsVector && !Op->isDPRRegList()) {
8969 Error(L, ".vsave expects DPR registers");
8973 getTargetStreamer().emitRegSave(Op->getRegList(), IsVector);
8977 /// parseDirectiveInst
8978 /// ::= .inst opcode [, ...]
8979 /// ::= .inst.n opcode [, ...]
8980 /// ::= .inst.w opcode [, ...]
8981 bool ARMAsmParser::parseDirectiveInst(SMLoc Loc, char Suffix) {
8993 Parser.eatToEndOfStatement();
8994 Error(Loc, "cannot determine Thumb instruction size, "
8995 "use inst.n/inst.w instead");
9000 Parser.eatToEndOfStatement();
9001 Error(Loc, "width suffixes are invalid in ARM mode");
9007 if (getLexer().is(AsmToken::EndOfStatement)) {
9008 Parser.eatToEndOfStatement();
9009 Error(Loc, "expected expression following directive");
9016 if (getParser().parseExpression(Expr)) {
9017 Error(Loc, "expected expression");
9021 const MCConstantExpr *Value = dyn_cast_or_null<MCConstantExpr>(Expr);
9023 Error(Loc, "expected constant expression");
9029 if (Value->getValue() > 0xffff) {
9030 Error(Loc, "inst.n operand is too big, use inst.w instead");
9035 if (Value->getValue() > 0xffffffff) {
9037 StringRef(Suffix ? "inst.w" : "inst") + " operand is too big");
9042 llvm_unreachable("only supported widths are 2 and 4");
9045 getTargetStreamer().emitInst(Value->getValue(), Suffix);
9047 if (getLexer().is(AsmToken::EndOfStatement))
9050 if (getLexer().isNot(AsmToken::Comma)) {
9051 Error(Loc, "unexpected token in directive");
9062 /// parseDirectiveLtorg
9063 /// ::= .ltorg | .pool
9064 bool ARMAsmParser::parseDirectiveLtorg(SMLoc L) {
9065 getTargetStreamer().emitCurrentConstantPool();
9069 bool ARMAsmParser::parseDirectiveEven(SMLoc L) {
9070 const MCSection *Section = getStreamer().getCurrentSection().first;
9072 if (getLexer().isNot(AsmToken::EndOfStatement)) {
9073 TokError("unexpected token in directive");
9078 getStreamer().InitSections();
9079 Section = getStreamer().getCurrentSection().first;
9082 assert(Section && "must have section to emit alignment");
9083 if (Section->UseCodeAlign())
9084 getStreamer().EmitCodeAlignment(2);
9086 getStreamer().EmitValueToAlignment(2);
9091 /// parseDirectivePersonalityIndex
9092 /// ::= .personalityindex index
9093 bool ARMAsmParser::parseDirectivePersonalityIndex(SMLoc L) {
9094 bool HasExistingPersonality = UC.hasPersonality();
9096 UC.recordPersonalityIndex(L);
9098 if (!UC.hasFnStart()) {
9099 Parser.eatToEndOfStatement();
9100 Error(L, ".fnstart must precede .personalityindex directive");
9103 if (UC.cantUnwind()) {
9104 Parser.eatToEndOfStatement();
9105 Error(L, ".personalityindex cannot be used with .cantunwind");
9106 UC.emitCantUnwindLocNotes();
9109 if (UC.hasHandlerData()) {
9110 Parser.eatToEndOfStatement();
9111 Error(L, ".personalityindex must precede .handlerdata directive");
9112 UC.emitHandlerDataLocNotes();
9115 if (HasExistingPersonality) {
9116 Parser.eatToEndOfStatement();
9117 Error(L, "multiple personality directives");
9118 UC.emitPersonalityLocNotes();
9122 const MCExpr *IndexExpression;
9123 SMLoc IndexLoc = Parser.getTok().getLoc();
9124 if (Parser.parseExpression(IndexExpression)) {
9125 Parser.eatToEndOfStatement();
9129 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(IndexExpression);
9131 Parser.eatToEndOfStatement();
9132 Error(IndexLoc, "index must be a constant number");
9135 if (CE->getValue() < 0 ||
9136 CE->getValue() >= ARM::EHABI::NUM_PERSONALITY_INDEX) {
9137 Parser.eatToEndOfStatement();
9138 Error(IndexLoc, "personality routine index should be in range [0-3]");
9142 getTargetStreamer().emitPersonalityIndex(CE->getValue());
9146 /// parseDirectiveUnwindRaw
9147 /// ::= .unwind_raw offset, opcode [, opcode...]
9148 bool ARMAsmParser::parseDirectiveUnwindRaw(SMLoc L) {
9149 if (!UC.hasFnStart()) {
9150 Parser.eatToEndOfStatement();
9151 Error(L, ".fnstart must precede .unwind_raw directives");
9155 int64_t StackOffset;
9157 const MCExpr *OffsetExpr;
9158 SMLoc OffsetLoc = getLexer().getLoc();
9159 if (getLexer().is(AsmToken::EndOfStatement) ||
9160 getParser().parseExpression(OffsetExpr)) {
9161 Error(OffsetLoc, "expected expression");
9162 Parser.eatToEndOfStatement();
9166 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
9168 Error(OffsetLoc, "offset must be a constant");
9169 Parser.eatToEndOfStatement();
9173 StackOffset = CE->getValue();
9175 if (getLexer().isNot(AsmToken::Comma)) {
9176 Error(getLexer().getLoc(), "expected comma");
9177 Parser.eatToEndOfStatement();
9182 SmallVector<uint8_t, 16> Opcodes;
9186 SMLoc OpcodeLoc = getLexer().getLoc();
9187 if (getLexer().is(AsmToken::EndOfStatement) || Parser.parseExpression(OE)) {
9188 Error(OpcodeLoc, "expected opcode expression");
9189 Parser.eatToEndOfStatement();
9193 const MCConstantExpr *OC = dyn_cast<MCConstantExpr>(OE);
9195 Error(OpcodeLoc, "opcode value must be a constant");
9196 Parser.eatToEndOfStatement();
9200 const int64_t Opcode = OC->getValue();
9201 if (Opcode & ~0xff) {
9202 Error(OpcodeLoc, "invalid opcode");
9203 Parser.eatToEndOfStatement();
9207 Opcodes.push_back(uint8_t(Opcode));
9209 if (getLexer().is(AsmToken::EndOfStatement))
9212 if (getLexer().isNot(AsmToken::Comma)) {
9213 Error(getLexer().getLoc(), "unexpected token in directive");
9214 Parser.eatToEndOfStatement();
9221 getTargetStreamer().emitUnwindRaw(StackOffset, Opcodes);
9227 /// parseDirectiveTLSDescSeq
9228 /// ::= .tlsdescseq tls-variable
9229 bool ARMAsmParser::parseDirectiveTLSDescSeq(SMLoc L) {
9230 if (getLexer().isNot(AsmToken::Identifier)) {
9231 TokError("expected variable after '.tlsdescseq' directive");
9232 Parser.eatToEndOfStatement();
9236 const MCSymbolRefExpr *SRE =
9237 MCSymbolRefExpr::Create(Parser.getTok().getIdentifier(),
9238 MCSymbolRefExpr::VK_ARM_TLSDESCSEQ, getContext());
9241 if (getLexer().isNot(AsmToken::EndOfStatement)) {
9242 Error(Parser.getTok().getLoc(), "unexpected token");
9243 Parser.eatToEndOfStatement();
9247 getTargetStreamer().AnnotateTLSDescriptorSequence(SRE);
9251 /// parseDirectiveMovSP
9252 /// ::= .movsp reg [, #offset]
9253 bool ARMAsmParser::parseDirectiveMovSP(SMLoc L) {
9254 if (!UC.hasFnStart()) {
9255 Parser.eatToEndOfStatement();
9256 Error(L, ".fnstart must precede .movsp directives");
9259 if (UC.getFPReg() != ARM::SP) {
9260 Parser.eatToEndOfStatement();
9261 Error(L, "unexpected .movsp directive");
9265 SMLoc SPRegLoc = Parser.getTok().getLoc();
9266 int SPReg = tryParseRegister();
9268 Parser.eatToEndOfStatement();
9269 Error(SPRegLoc, "register expected");
9273 if (SPReg == ARM::SP || SPReg == ARM::PC) {
9274 Parser.eatToEndOfStatement();
9275 Error(SPRegLoc, "sp and pc are not permitted in .movsp directive");
9280 if (Parser.getTok().is(AsmToken::Comma)) {
9283 if (Parser.getTok().isNot(AsmToken::Hash)) {
9284 Error(Parser.getTok().getLoc(), "expected #constant");
9285 Parser.eatToEndOfStatement();
9290 const MCExpr *OffsetExpr;
9291 SMLoc OffsetLoc = Parser.getTok().getLoc();
9292 if (Parser.parseExpression(OffsetExpr)) {
9293 Parser.eatToEndOfStatement();
9294 Error(OffsetLoc, "malformed offset expression");
9298 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
9300 Parser.eatToEndOfStatement();
9301 Error(OffsetLoc, "offset must be an immediate constant");
9305 Offset = CE->getValue();
9308 getTargetStreamer().emitMovSP(SPReg, Offset);
9309 UC.saveFPReg(SPReg);
9314 /// parseDirectiveObjectArch
9315 /// ::= .object_arch name
9316 bool ARMAsmParser::parseDirectiveObjectArch(SMLoc L) {
9317 if (getLexer().isNot(AsmToken::Identifier)) {
9318 Error(getLexer().getLoc(), "unexpected token");
9319 Parser.eatToEndOfStatement();
9323 StringRef Arch = Parser.getTok().getString();
9324 SMLoc ArchLoc = Parser.getTok().getLoc();
9327 unsigned ID = StringSwitch<unsigned>(Arch)
9328 #define ARM_ARCH_NAME(NAME, ID, DEFAULT_CPU_NAME, DEFAULT_CPU_ARCH) \
9329 .Case(NAME, ARM::ID)
9330 #define ARM_ARCH_ALIAS(NAME, ID) \
9331 .Case(NAME, ARM::ID)
9332 #include "MCTargetDesc/ARMArchName.def"
9333 #undef ARM_ARCH_NAME
9334 #undef ARM_ARCH_ALIAS
9335 .Default(ARM::INVALID_ARCH);
9337 if (ID == ARM::INVALID_ARCH) {
9338 Error(ArchLoc, "unknown architecture '" + Arch + "'");
9339 Parser.eatToEndOfStatement();
9343 getTargetStreamer().emitObjectArch(ID);
9345 if (getLexer().isNot(AsmToken::EndOfStatement)) {
9346 Error(getLexer().getLoc(), "unexpected token");
9347 Parser.eatToEndOfStatement();
9353 /// parseDirectiveAlign
9355 bool ARMAsmParser::parseDirectiveAlign(SMLoc L) {
9356 // NOTE: if this is not the end of the statement, fall back to the target
9357 // agnostic handling for this directive which will correctly handle this.
9358 if (getLexer().isNot(AsmToken::EndOfStatement))
9361 // '.align' is target specifically handled to mean 2**2 byte alignment.
9362 if (getStreamer().getCurrentSection().first->UseCodeAlign())
9363 getStreamer().EmitCodeAlignment(4, 0);
9365 getStreamer().EmitValueToAlignment(4, 0, 1, 0);
9370 /// parseDirectiveThumbSet
9371 /// ::= .thumb_set name, value
9372 bool ARMAsmParser::parseDirectiveThumbSet(SMLoc L) {
9374 if (Parser.parseIdentifier(Name)) {
9375 TokError("expected identifier after '.thumb_set'");
9376 Parser.eatToEndOfStatement();
9380 if (getLexer().isNot(AsmToken::Comma)) {
9381 TokError("expected comma after name '" + Name + "'");
9382 Parser.eatToEndOfStatement();
9387 const MCExpr *Value;
9388 if (Parser.parseExpression(Value)) {
9389 TokError("missing expression");
9390 Parser.eatToEndOfStatement();
9394 if (getLexer().isNot(AsmToken::EndOfStatement)) {
9395 TokError("unexpected token");
9396 Parser.eatToEndOfStatement();
9401 MCSymbol *Alias = getContext().GetOrCreateSymbol(Name);
9402 if (const MCSymbolRefExpr *SRE = dyn_cast<MCSymbolRefExpr>(Value)) {
9403 MCSymbol *Sym = getContext().LookupSymbol(SRE->getSymbol().getName());
9404 if (!Sym->isDefined()) {
9405 getStreamer().EmitSymbolAttribute(Sym, MCSA_Global);
9406 getStreamer().EmitAssignment(Alias, Value);
9410 const MCObjectFileInfo::Environment Format =
9411 getContext().getObjectFileInfo()->getObjectFileType();
9413 case MCObjectFileInfo::IsCOFF: {
9414 char Type = COFF::IMAGE_SYM_DTYPE_FUNCTION << COFF::SCT_COMPLEX_TYPE_SHIFT;
9415 getStreamer().EmitCOFFSymbolType(Type);
9416 // .set values are always local in COFF
9417 getStreamer().EmitSymbolAttribute(Alias, MCSA_Local);
9420 case MCObjectFileInfo::IsELF:
9421 getStreamer().EmitSymbolAttribute(Alias, MCSA_ELF_TypeFunction);
9423 case MCObjectFileInfo::IsMachO:
9428 // FIXME: set the function as being a thumb function via the assembler
9429 getStreamer().EmitThumbFunc(Alias);
9430 getStreamer().EmitAssignment(Alias, Value);
9435 /// Force static initialization.
9436 extern "C" void LLVMInitializeARMAsmParser() {
9437 RegisterMCAsmParser<ARMAsmParser> X(TheARMLETarget);
9438 RegisterMCAsmParser<ARMAsmParser> Y(TheARMBETarget);
9439 RegisterMCAsmParser<ARMAsmParser> A(TheThumbLETarget);
9440 RegisterMCAsmParser<ARMAsmParser> B(TheThumbBETarget);
9443 #define GET_REGISTER_MATCHER
9444 #define GET_SUBTARGET_FEATURE_NAME
9445 #define GET_MATCHER_IMPLEMENTATION
9446 #include "ARMGenAsmMatcher.inc"
9448 static const struct ExtMapEntry {
9449 const char *Extension;
9450 const unsigned ArchCheck;
9451 const uint64_t Features;
9453 { "crc", Feature_HasV8, ARM::FeatureCRC },
9454 { "crypto", Feature_HasV8,
9455 ARM::FeatureCrypto | ARM::FeatureNEON | ARM::FeatureFPARMv8 },
9456 { "fp", Feature_HasV8, ARM::FeatureFPARMv8 },
9457 { "idiv", Feature_HasV7 | Feature_IsNotMClass,
9458 ARM::FeatureHWDiv | ARM::FeatureHWDivARM },
9459 // FIXME: iWMMXT not supported
9460 { "iwmmxt", Feature_None, 0 },
9461 // FIXME: iWMMXT2 not supported
9462 { "iwmmxt2", Feature_None, 0 },
9463 // FIXME: Maverick not supported
9464 { "maverick", Feature_None, 0 },
9465 { "mp", Feature_HasV7 | Feature_IsNotMClass, ARM::FeatureMP },
9466 // FIXME: ARMv6-m OS Extensions feature not checked
9467 { "os", Feature_None, 0 },
9468 // FIXME: Also available in ARMv6-K
9469 { "sec", Feature_HasV7, ARM::FeatureTrustZone },
9470 { "simd", Feature_HasV8, ARM::FeatureNEON | ARM::FeatureFPARMv8 },
9471 // FIXME: Only available in A-class, isel not predicated
9472 { "virt", Feature_HasV7, ARM::FeatureVirtualization },
9473 // FIXME: xscale not supported
9474 { "xscale", Feature_None, 0 },
9477 /// parseDirectiveArchExtension
9478 /// ::= .arch_extension [no]feature
9479 bool ARMAsmParser::parseDirectiveArchExtension(SMLoc L) {
9480 if (getLexer().isNot(AsmToken::Identifier)) {
9481 Error(getLexer().getLoc(), "unexpected token");
9482 Parser.eatToEndOfStatement();
9486 StringRef Extension = Parser.getTok().getString();
9487 SMLoc ExtLoc = Parser.getTok().getLoc();
9490 bool EnableFeature = true;
9491 if (Extension.startswith_lower("no")) {
9492 EnableFeature = false;
9493 Extension = Extension.substr(2);
9496 for (unsigned EI = 0, EE = array_lengthof(Extensions); EI != EE; ++EI) {
9497 if (Extensions[EI].Extension != Extension)
9500 unsigned FB = getAvailableFeatures();
9501 if ((FB & Extensions[EI].ArchCheck) != Extensions[EI].ArchCheck) {
9502 Error(ExtLoc, "architectural extension '" + Extension + "' is not "
9503 "allowed for the current base architecture");
9507 if (!Extensions[EI].Features)
9508 report_fatal_error("unsupported architectural extension: " + Extension);
9511 FB |= ComputeAvailableFeatures(Extensions[EI].Features);
9513 FB &= ~ComputeAvailableFeatures(Extensions[EI].Features);
9515 setAvailableFeatures(FB);
9519 Error(ExtLoc, "unknown architectural extension: " + Extension);
9520 Parser.eatToEndOfStatement();
9524 // Define this matcher function after the auto-generated include so we
9525 // have the match class enum definitions.
9526 unsigned ARMAsmParser::validateTargetOperandClass(MCParsedAsmOperand *AsmOp,
9528 ARMOperand *Op = static_cast<ARMOperand*>(AsmOp);
9529 // If the kind is a token for a literal immediate, check if our asm
9530 // operand matches. This is for InstAliases which have a fixed-value
9531 // immediate in the syntax.
9536 if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm()))
9537 if (CE->getValue() == 0)
9538 return Match_Success;
9542 const MCExpr *SOExpr = Op->getImm();
9544 if (!SOExpr->EvaluateAsAbsolute(Value))
9545 return Match_Success;
9546 assert((Value >= INT32_MIN && Value <= INT32_MAX) &&
9547 "expression value must be representiable in 32 bits");
9552 MRI->getRegClass(ARM::GPRRegClassID).contains(Op->getReg()))
9553 return Match_Success;
9556 return Match_InvalidOperand;