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/BitVector.h"
17 #include "llvm/ADT/MapVector.h"
18 #include "llvm/ADT/OwningPtr.h"
19 #include "llvm/ADT/STLExtras.h"
20 #include "llvm/ADT/SmallVector.h"
21 #include "llvm/ADT/StringExtras.h"
22 #include "llvm/ADT/StringSwitch.h"
23 #include "llvm/ADT/Twine.h"
24 #include "llvm/MC/MCAsmInfo.h"
25 #include "llvm/MC/MCAssembler.h"
26 #include "llvm/MC/MCContext.h"
27 #include "llvm/MC/MCDisassembler.h"
28 #include "llvm/MC/MCELFStreamer.h"
29 #include "llvm/MC/MCExpr.h"
30 #include "llvm/MC/MCInst.h"
31 #include "llvm/MC/MCInstrDesc.h"
32 #include "llvm/MC/MCInstrInfo.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/Debug.h"
45 #include "llvm/Support/ELF.h"
46 #include "llvm/Support/MathExtras.h"
47 #include "llvm/Support/SourceMgr.h"
48 #include "llvm/Support/TargetRegistry.h"
49 #include "llvm/Support/raw_ostream.h"
57 enum VectorLaneTy { NoLanes, AllLanes, IndexedLane };
59 // A class to keep track of assembler-generated constant pools that are use to
60 // implement the ldr-pseudo.
62 typedef SmallVector<std::pair<MCSymbol *, const MCExpr *>, 4> EntryVecTy;
66 // Initialize a new empty constant pool
69 // Add a new entry to the constant pool in the next slot.
70 // \param Value is the new entry to put in the constant pool.
72 // \returns a MCExpr that references the newly inserted value
73 const MCExpr *addEntry(const MCExpr *Value, MCContext &Context) {
74 MCSymbol *CPEntryLabel = Context.CreateTempSymbol();
76 Entries.push_back(std::make_pair(CPEntryLabel, Value));
77 return MCSymbolRefExpr::Create(CPEntryLabel, Context);
80 // Emit the contents of the constant pool using the provided streamer.
81 void emitEntries(MCStreamer &Streamer) {
84 Streamer.EmitCodeAlignment(4); // align to 4-byte address
85 Streamer.EmitDataRegion(MCDR_DataRegion);
86 for (EntryVecTy::const_iterator I = Entries.begin(), E = Entries.end();
88 Streamer.EmitLabel(I->first);
89 Streamer.EmitValue(I->second, 4);
91 Streamer.EmitDataRegion(MCDR_DataRegionEnd);
95 // Return true if the constant pool is empty
97 return Entries.empty();
101 // Map type used to keep track of per-Section constant pools used by the
102 // ldr-pseudo opcode. The map associates a section to its constant pool. The
103 // constant pool is a vector of (label, value) pairs. When the ldr
104 // pseudo is parsed we insert a new (label, value) pair into the constant pool
105 // for the current section and add MCSymbolRefExpr to the new label as
106 // an opcode to the ldr. After we have parsed all the user input we
107 // output the (label, value) pairs in each constant pool at the end of the
110 // We use the MapVector for the map type to ensure stable iteration of
111 // the sections at the end of the parse. We need to iterate over the
112 // sections in a stable order to ensure that we have print the
113 // constant pools in a deterministic order when printing an assembly
115 typedef MapVector<const MCSection *, ConstantPool> ConstantPoolMapTy;
117 class UnwindContext {
120 typedef SmallVector<SMLoc, 4> Locs;
124 Locs PersonalityLocs;
125 Locs PersonalityIndexLocs;
126 Locs HandlerDataLocs;
130 UnwindContext(MCAsmParser &P) : Parser(P), FPReg(ARM::SP) {}
132 bool hasFnStart() const { return !FnStartLocs.empty(); }
133 bool cantUnwind() const { return !CantUnwindLocs.empty(); }
134 bool hasHandlerData() const { return !HandlerDataLocs.empty(); }
135 bool hasPersonality() const {
136 return !(PersonalityLocs.empty() && PersonalityIndexLocs.empty());
139 void recordFnStart(SMLoc L) { FnStartLocs.push_back(L); }
140 void recordCantUnwind(SMLoc L) { CantUnwindLocs.push_back(L); }
141 void recordPersonality(SMLoc L) { PersonalityLocs.push_back(L); }
142 void recordHandlerData(SMLoc L) { HandlerDataLocs.push_back(L); }
143 void recordPersonalityIndex(SMLoc L) { PersonalityIndexLocs.push_back(L); }
145 void saveFPReg(int Reg) { FPReg = Reg; }
146 int getFPReg() const { return FPReg; }
148 void emitFnStartLocNotes() const {
149 for (Locs::const_iterator FI = FnStartLocs.begin(), FE = FnStartLocs.end();
151 Parser.Note(*FI, ".fnstart was specified here");
153 void emitCantUnwindLocNotes() const {
154 for (Locs::const_iterator UI = CantUnwindLocs.begin(),
155 UE = CantUnwindLocs.end(); UI != UE; ++UI)
156 Parser.Note(*UI, ".cantunwind was specified here");
158 void emitHandlerDataLocNotes() const {
159 for (Locs::const_iterator HI = HandlerDataLocs.begin(),
160 HE = HandlerDataLocs.end(); HI != HE; ++HI)
161 Parser.Note(*HI, ".handlerdata was specified here");
163 void emitPersonalityLocNotes() const {
164 for (Locs::const_iterator PI = PersonalityLocs.begin(),
165 PE = PersonalityLocs.end(),
166 PII = PersonalityIndexLocs.begin(),
167 PIE = PersonalityIndexLocs.end();
168 PI != PE || PII != PIE;) {
169 if (PI != PE && (PII == PIE || PI->getPointer() < PII->getPointer()))
170 Parser.Note(*PI++, ".personality was specified here");
171 else if (PII != PIE && (PI == PE || PII->getPointer() < PI->getPointer()))
172 Parser.Note(*PII++, ".personalityindex was specified here");
174 llvm_unreachable(".personality and .personalityindex cannot be "
175 "at the same location");
180 FnStartLocs = Locs();
181 CantUnwindLocs = Locs();
182 PersonalityLocs = Locs();
183 HandlerDataLocs = Locs();
184 PersonalityIndexLocs = Locs();
189 class ARMAsmParser : public MCTargetAsmParser {
190 MCSubtargetInfo &STI;
192 const MCInstrInfo &MII;
193 const MCRegisterInfo *MRI;
194 ConstantPoolMapTy ConstantPools;
197 // Assembler created constant pools for ldr pseudo
198 ConstantPool *getConstantPool(const MCSection *Section) {
199 ConstantPoolMapTy::iterator CP = ConstantPools.find(Section);
200 if (CP == ConstantPools.end())
206 ConstantPool &getOrCreateConstantPool(const MCSection *Section) {
207 return ConstantPools[Section];
210 ARMTargetStreamer &getTargetStreamer() {
211 MCTargetStreamer &TS = *getParser().getStreamer().getTargetStreamer();
212 return static_cast<ARMTargetStreamer &>(TS);
215 // Map of register aliases registers via the .req directive.
216 StringMap<unsigned> RegisterReqs;
218 bool NextSymbolIsThumb;
221 ARMCC::CondCodes Cond; // Condition for IT block.
222 unsigned Mask:4; // Condition mask for instructions.
223 // Starting at first 1 (from lsb).
224 // '1' condition as indicated in IT.
225 // '0' inverse of condition (else).
226 // Count of instructions in IT block is
227 // 4 - trailingzeroes(mask)
229 bool FirstCond; // Explicit flag for when we're parsing the
230 // First instruction in the IT block. It's
231 // implied in the mask, so needs special
234 unsigned CurPosition; // Current position in parsing of IT
235 // block. In range [0,3]. Initialized
236 // according to count of instructions in block.
237 // ~0U if no active IT block.
239 bool inITBlock() { return ITState.CurPosition != ~0U;}
240 void forwardITPosition() {
241 if (!inITBlock()) return;
242 // Move to the next instruction in the IT block, if there is one. If not,
243 // mark the block as done.
244 unsigned TZ = countTrailingZeros(ITState.Mask);
245 if (++ITState.CurPosition == 5 - TZ)
246 ITState.CurPosition = ~0U; // Done with the IT block after this.
250 MCAsmParser &getParser() const { return Parser; }
251 MCAsmLexer &getLexer() const { return Parser.getLexer(); }
253 void Note(SMLoc L, const Twine &Msg, ArrayRef<SMRange> Ranges = None) {
254 return Parser.Note(L, Msg, Ranges);
256 bool Warning(SMLoc L, const Twine &Msg,
257 ArrayRef<SMRange> Ranges = None) {
258 return Parser.Warning(L, Msg, Ranges);
260 bool Error(SMLoc L, const Twine &Msg,
261 ArrayRef<SMRange> Ranges = None) {
262 return Parser.Error(L, Msg, Ranges);
265 int tryParseRegister();
266 bool tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &);
267 int tryParseShiftRegister(SmallVectorImpl<MCParsedAsmOperand*> &);
268 bool parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &);
269 bool parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &);
270 bool parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &, StringRef Mnemonic);
271 bool parsePrefix(ARMMCExpr::VariantKind &RefKind);
272 bool parseMemRegOffsetShift(ARM_AM::ShiftOpc &ShiftType,
273 unsigned &ShiftAmount);
274 bool parseDirectiveWord(unsigned Size, SMLoc L);
275 bool parseDirectiveThumb(SMLoc L);
276 bool parseDirectiveARM(SMLoc L);
277 bool parseDirectiveThumbFunc(SMLoc L);
278 bool parseDirectiveCode(SMLoc L);
279 bool parseDirectiveSyntax(SMLoc L);
280 bool parseDirectiveReq(StringRef Name, SMLoc L);
281 bool parseDirectiveUnreq(SMLoc L);
282 bool parseDirectiveArch(SMLoc L);
283 bool parseDirectiveEabiAttr(SMLoc L);
284 bool parseDirectiveCPU(SMLoc L);
285 bool parseDirectiveFPU(SMLoc L);
286 bool parseDirectiveFnStart(SMLoc L);
287 bool parseDirectiveFnEnd(SMLoc L);
288 bool parseDirectiveCantUnwind(SMLoc L);
289 bool parseDirectivePersonality(SMLoc L);
290 bool parseDirectiveHandlerData(SMLoc L);
291 bool parseDirectiveSetFP(SMLoc L);
292 bool parseDirectivePad(SMLoc L);
293 bool parseDirectiveRegSave(SMLoc L, bool IsVector);
294 bool parseDirectiveInst(SMLoc L, char Suffix = '\0');
295 bool parseDirectiveLtorg(SMLoc L);
296 bool parseDirectiveEven(SMLoc L);
297 bool parseDirectivePersonalityIndex(SMLoc L);
298 bool parseDirectiveUnwindRaw(SMLoc L);
299 bool parseDirectiveTLSDescSeq(SMLoc L);
300 bool parseDirectiveMovSP(SMLoc L);
302 StringRef splitMnemonic(StringRef Mnemonic, unsigned &PredicationCode,
303 bool &CarrySetting, unsigned &ProcessorIMod,
305 void getMnemonicAcceptInfo(StringRef Mnemonic, StringRef FullInst,
306 bool &CanAcceptCarrySet,
307 bool &CanAcceptPredicationCode);
309 bool isThumb() const {
310 // FIXME: Can tablegen auto-generate this?
311 return (STI.getFeatureBits() & ARM::ModeThumb) != 0;
313 bool isThumbOne() const {
314 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2) == 0;
316 bool isThumbTwo() const {
317 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2);
319 bool hasThumb() const {
320 return STI.getFeatureBits() & ARM::HasV4TOps;
322 bool hasV6Ops() const {
323 return STI.getFeatureBits() & ARM::HasV6Ops;
325 bool hasV6MOps() const {
326 return STI.getFeatureBits() & ARM::HasV6MOps;
328 bool hasV7Ops() const {
329 return STI.getFeatureBits() & ARM::HasV7Ops;
331 bool hasV8Ops() const {
332 return STI.getFeatureBits() & ARM::HasV8Ops;
334 bool hasARM() const {
335 return !(STI.getFeatureBits() & ARM::FeatureNoARM);
339 unsigned FB = ComputeAvailableFeatures(STI.ToggleFeature(ARM::ModeThumb));
340 setAvailableFeatures(FB);
342 bool isMClass() const {
343 return STI.getFeatureBits() & ARM::FeatureMClass;
346 /// @name Auto-generated Match Functions
349 #define GET_ASSEMBLER_HEADER
350 #include "ARMGenAsmMatcher.inc"
354 OperandMatchResultTy parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*>&);
355 OperandMatchResultTy parseCoprocNumOperand(
356 SmallVectorImpl<MCParsedAsmOperand*>&);
357 OperandMatchResultTy parseCoprocRegOperand(
358 SmallVectorImpl<MCParsedAsmOperand*>&);
359 OperandMatchResultTy parseCoprocOptionOperand(
360 SmallVectorImpl<MCParsedAsmOperand*>&);
361 OperandMatchResultTy parseMemBarrierOptOperand(
362 SmallVectorImpl<MCParsedAsmOperand*>&);
363 OperandMatchResultTy parseInstSyncBarrierOptOperand(
364 SmallVectorImpl<MCParsedAsmOperand*>&);
365 OperandMatchResultTy parseProcIFlagsOperand(
366 SmallVectorImpl<MCParsedAsmOperand*>&);
367 OperandMatchResultTy parseMSRMaskOperand(
368 SmallVectorImpl<MCParsedAsmOperand*>&);
369 OperandMatchResultTy parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &O,
370 StringRef Op, int Low, int High);
371 OperandMatchResultTy parsePKHLSLImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
372 return parsePKHImm(O, "lsl", 0, 31);
374 OperandMatchResultTy parsePKHASRImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
375 return parsePKHImm(O, "asr", 1, 32);
377 OperandMatchResultTy parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*>&);
378 OperandMatchResultTy parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*>&);
379 OperandMatchResultTy parseRotImm(SmallVectorImpl<MCParsedAsmOperand*>&);
380 OperandMatchResultTy parseBitfield(SmallVectorImpl<MCParsedAsmOperand*>&);
381 OperandMatchResultTy parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*>&);
382 OperandMatchResultTy parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*>&);
383 OperandMatchResultTy parseFPImm(SmallVectorImpl<MCParsedAsmOperand*>&);
384 OperandMatchResultTy parseVectorList(SmallVectorImpl<MCParsedAsmOperand*>&);
385 OperandMatchResultTy parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index,
388 // Asm Match Converter Methods
389 void cvtThumbMultiply(MCInst &Inst,
390 const SmallVectorImpl<MCParsedAsmOperand*> &);
391 void cvtThumbBranches(MCInst &Inst,
392 const SmallVectorImpl<MCParsedAsmOperand*> &);
394 bool validateInstruction(MCInst &Inst,
395 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
396 bool processInstruction(MCInst &Inst,
397 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
398 bool shouldOmitCCOutOperand(StringRef Mnemonic,
399 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
400 bool shouldOmitPredicateOperand(StringRef Mnemonic,
401 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
403 enum ARMMatchResultTy {
404 Match_RequiresITBlock = FIRST_TARGET_MATCH_RESULT_TY,
405 Match_RequiresNotITBlock,
407 Match_RequiresThumb2,
408 #define GET_OPERAND_DIAGNOSTIC_TYPES
409 #include "ARMGenAsmMatcher.inc"
413 ARMAsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser,
414 const MCInstrInfo &MII)
415 : MCTargetAsmParser(), STI(_STI), Parser(_Parser), MII(MII), UC(_Parser) {
416 MCAsmParserExtension::Initialize(_Parser);
418 // Cache the MCRegisterInfo.
419 MRI = getContext().getRegisterInfo();
421 // Initialize the set of available features.
422 setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
424 // Not in an ITBlock to start with.
425 ITState.CurPosition = ~0U;
427 NextSymbolIsThumb = false;
430 // Implementation of the MCTargetAsmParser interface:
431 bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc);
432 bool ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
434 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
435 bool ParseDirective(AsmToken DirectiveID);
437 unsigned validateTargetOperandClass(MCParsedAsmOperand *Op, unsigned Kind);
438 unsigned checkTargetMatchPredicate(MCInst &Inst);
440 bool MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
441 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
442 MCStreamer &Out, unsigned &ErrorInfo,
443 bool MatchingInlineAsm);
444 void onLabelParsed(MCSymbol *Symbol);
447 } // end anonymous namespace
451 /// ARMOperand - Instances of this class represent a parsed ARM machine
453 class ARMOperand : public MCParsedAsmOperand {
463 k_InstSyncBarrierOpt,
474 k_VectorListAllLanes,
480 k_BitfieldDescriptor,
484 SMLoc StartLoc, EndLoc;
485 SmallVector<unsigned, 8> Registers;
488 ARMCC::CondCodes Val;
495 struct CoprocOptionOp {
508 ARM_ISB::InstSyncBOpt Val;
512 ARM_PROC::IFlags Val;
528 // A vector register list is a sequential list of 1 to 4 registers.
529 struct VectorListOp {
536 struct VectorIndexOp {
544 /// Combined record for all forms of ARM address expressions.
547 // Offset is in OffsetReg or OffsetImm. If both are zero, no offset
549 const MCConstantExpr *OffsetImm; // Offset immediate value
550 unsigned OffsetRegNum; // Offset register num, when OffsetImm == NULL
551 ARM_AM::ShiftOpc ShiftType; // Shift type for OffsetReg
552 unsigned ShiftImm; // shift for OffsetReg.
553 unsigned Alignment; // 0 = no alignment specified
554 // n = alignment in bytes (2, 4, 8, 16, or 32)
555 unsigned isNegative : 1; // Negated OffsetReg? (~'U' bit)
558 struct PostIdxRegOp {
561 ARM_AM::ShiftOpc ShiftTy;
565 struct ShifterImmOp {
570 struct RegShiftedRegOp {
571 ARM_AM::ShiftOpc ShiftTy;
577 struct RegShiftedImmOp {
578 ARM_AM::ShiftOpc ShiftTy;
595 struct CoprocOptionOp CoprocOption;
596 struct MBOptOp MBOpt;
597 struct ISBOptOp ISBOpt;
598 struct ITMaskOp ITMask;
599 struct IFlagsOp IFlags;
600 struct MMaskOp MMask;
603 struct VectorListOp VectorList;
604 struct VectorIndexOp VectorIndex;
606 struct MemoryOp Memory;
607 struct PostIdxRegOp PostIdxReg;
608 struct ShifterImmOp ShifterImm;
609 struct RegShiftedRegOp RegShiftedReg;
610 struct RegShiftedImmOp RegShiftedImm;
611 struct RotImmOp RotImm;
612 struct BitfieldOp Bitfield;
615 ARMOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
617 ARMOperand(const ARMOperand &o) : MCParsedAsmOperand() {
619 StartLoc = o.StartLoc;
636 case k_DPRRegisterList:
637 case k_SPRRegisterList:
638 Registers = o.Registers;
641 case k_VectorListAllLanes:
642 case k_VectorListIndexed:
643 VectorList = o.VectorList;
650 CoprocOption = o.CoprocOption;
655 case k_MemBarrierOpt:
658 case k_InstSyncBarrierOpt:
663 case k_PostIndexRegister:
664 PostIdxReg = o.PostIdxReg;
672 case k_ShifterImmediate:
673 ShifterImm = o.ShifterImm;
675 case k_ShiftedRegister:
676 RegShiftedReg = o.RegShiftedReg;
678 case k_ShiftedImmediate:
679 RegShiftedImm = o.RegShiftedImm;
681 case k_RotateImmediate:
684 case k_BitfieldDescriptor:
685 Bitfield = o.Bitfield;
688 VectorIndex = o.VectorIndex;
693 /// getStartLoc - Get the location of the first token of this operand.
694 SMLoc getStartLoc() const { return StartLoc; }
695 /// getEndLoc - Get the location of the last token of this operand.
696 SMLoc getEndLoc() const { return EndLoc; }
697 /// getLocRange - Get the range between the first and last token of this
699 SMRange getLocRange() const { return SMRange(StartLoc, EndLoc); }
701 ARMCC::CondCodes getCondCode() const {
702 assert(Kind == k_CondCode && "Invalid access!");
706 unsigned getCoproc() const {
707 assert((Kind == k_CoprocNum || Kind == k_CoprocReg) && "Invalid access!");
711 StringRef getToken() const {
712 assert(Kind == k_Token && "Invalid access!");
713 return StringRef(Tok.Data, Tok.Length);
716 unsigned getReg() const {
717 assert((Kind == k_Register || Kind == k_CCOut) && "Invalid access!");
721 const SmallVectorImpl<unsigned> &getRegList() const {
722 assert((Kind == k_RegisterList || Kind == k_DPRRegisterList ||
723 Kind == k_SPRRegisterList) && "Invalid access!");
727 const MCExpr *getImm() const {
728 assert(isImm() && "Invalid access!");
732 unsigned getVectorIndex() const {
733 assert(Kind == k_VectorIndex && "Invalid access!");
734 return VectorIndex.Val;
737 ARM_MB::MemBOpt getMemBarrierOpt() const {
738 assert(Kind == k_MemBarrierOpt && "Invalid access!");
742 ARM_ISB::InstSyncBOpt getInstSyncBarrierOpt() const {
743 assert(Kind == k_InstSyncBarrierOpt && "Invalid access!");
747 ARM_PROC::IFlags getProcIFlags() const {
748 assert(Kind == k_ProcIFlags && "Invalid access!");
752 unsigned getMSRMask() const {
753 assert(Kind == k_MSRMask && "Invalid access!");
757 bool isCoprocNum() const { return Kind == k_CoprocNum; }
758 bool isCoprocReg() const { return Kind == k_CoprocReg; }
759 bool isCoprocOption() const { return Kind == k_CoprocOption; }
760 bool isCondCode() const { return Kind == k_CondCode; }
761 bool isCCOut() const { return Kind == k_CCOut; }
762 bool isITMask() const { return Kind == k_ITCondMask; }
763 bool isITCondCode() const { return Kind == k_CondCode; }
764 bool isImm() const { return Kind == k_Immediate; }
765 // checks whether this operand is an unsigned offset which fits is a field
766 // of specified width and scaled by a specific number of bits
767 template<unsigned width, unsigned scale>
768 bool isUnsignedOffset() const {
769 if (!isImm()) return false;
770 if (isa<MCSymbolRefExpr>(Imm.Val)) return true;
771 if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Imm.Val)) {
772 int64_t Val = CE->getValue();
773 int64_t Align = 1LL << scale;
774 int64_t Max = Align * ((1LL << width) - 1);
775 return ((Val % Align) == 0) && (Val >= 0) && (Val <= Max);
779 // checks whether this operand is an signed offset which fits is a field
780 // of specified width and scaled by a specific number of bits
781 template<unsigned width, unsigned scale>
782 bool isSignedOffset() const {
783 if (!isImm()) return false;
784 if (isa<MCSymbolRefExpr>(Imm.Val)) return true;
785 if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Imm.Val)) {
786 int64_t Val = CE->getValue();
787 int64_t Align = 1LL << scale;
788 int64_t Max = Align * ((1LL << (width-1)) - 1);
789 int64_t Min = -Align * (1LL << (width-1));
790 return ((Val % Align) == 0) && (Val >= Min) && (Val <= Max);
795 // checks whether this operand is a memory operand computed as an offset
796 // applied to PC. the offset may have 8 bits of magnitude and is represented
797 // with two bits of shift. textually it may be either [pc, #imm], #imm or
798 // relocable expression...
799 bool isThumbMemPC() const {
802 if (isa<MCSymbolRefExpr>(Imm.Val)) return true;
803 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Imm.Val);
804 if (!CE) return false;
805 Val = CE->getValue();
808 if(!Memory.OffsetImm || Memory.OffsetRegNum) return false;
809 if(Memory.BaseRegNum != ARM::PC) return false;
810 Val = Memory.OffsetImm->getValue();
813 return ((Val % 4) == 0) && (Val >= 0) && (Val <= 1020);
815 bool isFPImm() const {
816 if (!isImm()) return false;
817 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
818 if (!CE) return false;
819 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
822 bool isFBits16() const {
823 if (!isImm()) return false;
824 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
825 if (!CE) return false;
826 int64_t Value = CE->getValue();
827 return Value >= 0 && Value <= 16;
829 bool isFBits32() const {
830 if (!isImm()) return false;
831 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
832 if (!CE) return false;
833 int64_t Value = CE->getValue();
834 return Value >= 1 && Value <= 32;
836 bool isImm8s4() const {
837 if (!isImm()) return false;
838 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
839 if (!CE) return false;
840 int64_t Value = CE->getValue();
841 return ((Value & 3) == 0) && Value >= -1020 && Value <= 1020;
843 bool isImm0_1020s4() const {
844 if (!isImm()) return false;
845 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
846 if (!CE) return false;
847 int64_t Value = CE->getValue();
848 return ((Value & 3) == 0) && Value >= 0 && Value <= 1020;
850 bool isImm0_508s4() const {
851 if (!isImm()) return false;
852 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
853 if (!CE) return false;
854 int64_t Value = CE->getValue();
855 return ((Value & 3) == 0) && Value >= 0 && Value <= 508;
857 bool isImm0_508s4Neg() const {
858 if (!isImm()) return false;
859 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
860 if (!CE) return false;
861 int64_t Value = -CE->getValue();
862 // explicitly exclude zero. we want that to use the normal 0_508 version.
863 return ((Value & 3) == 0) && Value > 0 && Value <= 508;
865 bool isImm0_239() const {
866 if (!isImm()) return false;
867 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
868 if (!CE) return false;
869 int64_t Value = CE->getValue();
870 return Value >= 0 && Value < 240;
872 bool isImm0_255() const {
873 if (!isImm()) return false;
874 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
875 if (!CE) return false;
876 int64_t Value = CE->getValue();
877 return Value >= 0 && Value < 256;
879 bool isImm0_4095() const {
880 if (!isImm()) return false;
881 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
882 if (!CE) return false;
883 int64_t Value = CE->getValue();
884 return Value >= 0 && Value < 4096;
886 bool isImm0_4095Neg() const {
887 if (!isImm()) return false;
888 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
889 if (!CE) return false;
890 int64_t Value = -CE->getValue();
891 return Value > 0 && Value < 4096;
893 bool isImm0_1() const {
894 if (!isImm()) return false;
895 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
896 if (!CE) return false;
897 int64_t Value = CE->getValue();
898 return Value >= 0 && Value < 2;
900 bool isImm0_3() const {
901 if (!isImm()) return false;
902 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
903 if (!CE) return false;
904 int64_t Value = CE->getValue();
905 return Value >= 0 && Value < 4;
907 bool isImm0_7() const {
908 if (!isImm()) return false;
909 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
910 if (!CE) return false;
911 int64_t Value = CE->getValue();
912 return Value >= 0 && Value < 8;
914 bool isImm0_15() const {
915 if (!isImm()) return false;
916 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
917 if (!CE) return false;
918 int64_t Value = CE->getValue();
919 return Value >= 0 && Value < 16;
921 bool isImm0_31() const {
922 if (!isImm()) return false;
923 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
924 if (!CE) return false;
925 int64_t Value = CE->getValue();
926 return Value >= 0 && Value < 32;
928 bool isImm0_63() const {
929 if (!isImm()) return false;
930 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
931 if (!CE) return false;
932 int64_t Value = CE->getValue();
933 return Value >= 0 && Value < 64;
935 bool isImm8() const {
936 if (!isImm()) return false;
937 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
938 if (!CE) return false;
939 int64_t Value = CE->getValue();
942 bool isImm16() const {
943 if (!isImm()) return false;
944 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
945 if (!CE) return false;
946 int64_t Value = CE->getValue();
949 bool isImm32() const {
950 if (!isImm()) return false;
951 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
952 if (!CE) return false;
953 int64_t Value = CE->getValue();
956 bool isShrImm8() const {
957 if (!isImm()) return false;
958 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
959 if (!CE) return false;
960 int64_t Value = CE->getValue();
961 return Value > 0 && Value <= 8;
963 bool isShrImm16() const {
964 if (!isImm()) return false;
965 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
966 if (!CE) return false;
967 int64_t Value = CE->getValue();
968 return Value > 0 && Value <= 16;
970 bool isShrImm32() const {
971 if (!isImm()) return false;
972 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
973 if (!CE) return false;
974 int64_t Value = CE->getValue();
975 return Value > 0 && Value <= 32;
977 bool isShrImm64() const {
978 if (!isImm()) return false;
979 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
980 if (!CE) return false;
981 int64_t Value = CE->getValue();
982 return Value > 0 && Value <= 64;
984 bool isImm1_7() const {
985 if (!isImm()) return false;
986 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
987 if (!CE) return false;
988 int64_t Value = CE->getValue();
989 return Value > 0 && Value < 8;
991 bool isImm1_15() const {
992 if (!isImm()) return false;
993 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
994 if (!CE) return false;
995 int64_t Value = CE->getValue();
996 return Value > 0 && Value < 16;
998 bool isImm1_31() const {
999 if (!isImm()) return false;
1000 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1001 if (!CE) return false;
1002 int64_t Value = CE->getValue();
1003 return Value > 0 && Value < 32;
1005 bool isImm1_16() const {
1006 if (!isImm()) return false;
1007 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1008 if (!CE) return false;
1009 int64_t Value = CE->getValue();
1010 return Value > 0 && Value < 17;
1012 bool isImm1_32() const {
1013 if (!isImm()) return false;
1014 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1015 if (!CE) return false;
1016 int64_t Value = CE->getValue();
1017 return Value > 0 && Value < 33;
1019 bool isImm0_32() const {
1020 if (!isImm()) return false;
1021 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1022 if (!CE) return false;
1023 int64_t Value = CE->getValue();
1024 return Value >= 0 && Value < 33;
1026 bool isImm0_65535() const {
1027 if (!isImm()) return false;
1028 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1029 if (!CE) return false;
1030 int64_t Value = CE->getValue();
1031 return Value >= 0 && Value < 65536;
1033 bool isImm256_65535Expr() const {
1034 if (!isImm()) return false;
1035 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1036 // If it's not a constant expression, it'll generate a fixup and be
1038 if (!CE) return true;
1039 int64_t Value = CE->getValue();
1040 return Value >= 256 && Value < 65536;
1042 bool isImm0_65535Expr() const {
1043 if (!isImm()) return false;
1044 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1045 // If it's not a constant expression, it'll generate a fixup and be
1047 if (!CE) return true;
1048 int64_t Value = CE->getValue();
1049 return Value >= 0 && Value < 65536;
1051 bool isImm24bit() const {
1052 if (!isImm()) return false;
1053 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1054 if (!CE) return false;
1055 int64_t Value = CE->getValue();
1056 return Value >= 0 && Value <= 0xffffff;
1058 bool isImmThumbSR() const {
1059 if (!isImm()) return false;
1060 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1061 if (!CE) return false;
1062 int64_t Value = CE->getValue();
1063 return Value > 0 && Value < 33;
1065 bool isPKHLSLImm() 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 return Value >= 0 && Value < 32;
1072 bool isPKHASRImm() const {
1073 if (!isImm()) return false;
1074 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1075 if (!CE) return false;
1076 int64_t Value = CE->getValue();
1077 return Value > 0 && Value <= 32;
1079 bool isAdrLabel() const {
1080 // If we have an immediate that's not a constant, treat it as a label
1081 // reference needing a fixup. If it is a constant, but it can't fit
1082 // into shift immediate encoding, we reject it.
1083 if (isImm() && !isa<MCConstantExpr>(getImm())) return true;
1084 else return (isARMSOImm() || isARMSOImmNeg());
1086 bool isARMSOImm() const {
1087 if (!isImm()) return false;
1088 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1089 if (!CE) return false;
1090 int64_t Value = CE->getValue();
1091 return ARM_AM::getSOImmVal(Value) != -1;
1093 bool isARMSOImmNot() const {
1094 if (!isImm()) return false;
1095 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1096 if (!CE) return false;
1097 int64_t Value = CE->getValue();
1098 return ARM_AM::getSOImmVal(~Value) != -1;
1100 bool isARMSOImmNeg() const {
1101 if (!isImm()) return false;
1102 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1103 if (!CE) return false;
1104 int64_t Value = CE->getValue();
1105 // Only use this when not representable as a plain so_imm.
1106 return ARM_AM::getSOImmVal(Value) == -1 &&
1107 ARM_AM::getSOImmVal(-Value) != -1;
1109 bool isT2SOImm() const {
1110 if (!isImm()) return false;
1111 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1112 if (!CE) return false;
1113 int64_t Value = CE->getValue();
1114 return ARM_AM::getT2SOImmVal(Value) != -1;
1116 bool isT2SOImmNot() const {
1117 if (!isImm()) return false;
1118 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1119 if (!CE) return false;
1120 int64_t Value = CE->getValue();
1121 return ARM_AM::getT2SOImmVal(Value) == -1 &&
1122 ARM_AM::getT2SOImmVal(~Value) != -1;
1124 bool isT2SOImmNeg() const {
1125 if (!isImm()) return false;
1126 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1127 if (!CE) return false;
1128 int64_t Value = CE->getValue();
1129 // Only use this when not representable as a plain so_imm.
1130 return ARM_AM::getT2SOImmVal(Value) == -1 &&
1131 ARM_AM::getT2SOImmVal(-Value) != -1;
1133 bool isSetEndImm() const {
1134 if (!isImm()) return false;
1135 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1136 if (!CE) return false;
1137 int64_t Value = CE->getValue();
1138 return Value == 1 || Value == 0;
1140 bool isReg() const { return Kind == k_Register; }
1141 bool isRegList() const { return Kind == k_RegisterList; }
1142 bool isDPRRegList() const { return Kind == k_DPRRegisterList; }
1143 bool isSPRRegList() const { return Kind == k_SPRRegisterList; }
1144 bool isToken() const { return Kind == k_Token; }
1145 bool isMemBarrierOpt() const { return Kind == k_MemBarrierOpt; }
1146 bool isInstSyncBarrierOpt() const { return Kind == k_InstSyncBarrierOpt; }
1147 bool isMem() const { return Kind == k_Memory; }
1148 bool isShifterImm() const { return Kind == k_ShifterImmediate; }
1149 bool isRegShiftedReg() const { return Kind == k_ShiftedRegister; }
1150 bool isRegShiftedImm() const { return Kind == k_ShiftedImmediate; }
1151 bool isRotImm() const { return Kind == k_RotateImmediate; }
1152 bool isBitfield() const { return Kind == k_BitfieldDescriptor; }
1153 bool isPostIdxRegShifted() const { return Kind == k_PostIndexRegister; }
1154 bool isPostIdxReg() const {
1155 return Kind == k_PostIndexRegister && PostIdxReg.ShiftTy ==ARM_AM::no_shift;
1157 bool isMemNoOffset(bool alignOK = false) const {
1160 // No offset of any kind.
1161 return Memory.OffsetRegNum == 0 && Memory.OffsetImm == 0 &&
1162 (alignOK || Memory.Alignment == 0);
1164 bool isMemPCRelImm12() const {
1165 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1167 // Base register must be PC.
1168 if (Memory.BaseRegNum != ARM::PC)
1170 // Immediate offset in range [-4095, 4095].
1171 if (!Memory.OffsetImm) return true;
1172 int64_t Val = Memory.OffsetImm->getValue();
1173 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
1175 bool isAlignedMemory() const {
1176 return isMemNoOffset(true);
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 (isSingleSpacedVectorList()) return false;
1435 return (ARMMCRegisterClasses[ARM::DPairSpcRegClassID]
1436 .contains(VectorList.RegNum));
1439 bool isVecListThreeQ() const {
1440 if (!isDoubleSpacedVectorList()) return false;
1441 return VectorList.Count == 3;
1444 bool isVecListFourQ() const {
1445 if (!isDoubleSpacedVectorList()) return false;
1446 return VectorList.Count == 4;
1449 bool isSingleSpacedVectorAllLanes() const {
1450 return Kind == k_VectorListAllLanes && !VectorList.isDoubleSpaced;
1452 bool isDoubleSpacedVectorAllLanes() const {
1453 return Kind == k_VectorListAllLanes && VectorList.isDoubleSpaced;
1455 bool isVecListOneDAllLanes() const {
1456 if (!isSingleSpacedVectorAllLanes()) return false;
1457 return VectorList.Count == 1;
1460 bool isVecListDPairAllLanes() const {
1461 if (!isSingleSpacedVectorAllLanes()) return false;
1462 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1463 .contains(VectorList.RegNum));
1466 bool isVecListDPairSpacedAllLanes() const {
1467 if (!isDoubleSpacedVectorAllLanes()) return false;
1468 return VectorList.Count == 2;
1471 bool isVecListThreeDAllLanes() const {
1472 if (!isSingleSpacedVectorAllLanes()) return false;
1473 return VectorList.Count == 3;
1476 bool isVecListThreeQAllLanes() const {
1477 if (!isDoubleSpacedVectorAllLanes()) return false;
1478 return VectorList.Count == 3;
1481 bool isVecListFourDAllLanes() const {
1482 if (!isSingleSpacedVectorAllLanes()) return false;
1483 return VectorList.Count == 4;
1486 bool isVecListFourQAllLanes() const {
1487 if (!isDoubleSpacedVectorAllLanes()) return false;
1488 return VectorList.Count == 4;
1491 bool isSingleSpacedVectorIndexed() const {
1492 return Kind == k_VectorListIndexed && !VectorList.isDoubleSpaced;
1494 bool isDoubleSpacedVectorIndexed() const {
1495 return Kind == k_VectorListIndexed && VectorList.isDoubleSpaced;
1497 bool isVecListOneDByteIndexed() const {
1498 if (!isSingleSpacedVectorIndexed()) return false;
1499 return VectorList.Count == 1 && VectorList.LaneIndex <= 7;
1502 bool isVecListOneDHWordIndexed() const {
1503 if (!isSingleSpacedVectorIndexed()) return false;
1504 return VectorList.Count == 1 && VectorList.LaneIndex <= 3;
1507 bool isVecListOneDWordIndexed() const {
1508 if (!isSingleSpacedVectorIndexed()) return false;
1509 return VectorList.Count == 1 && VectorList.LaneIndex <= 1;
1512 bool isVecListTwoDByteIndexed() const {
1513 if (!isSingleSpacedVectorIndexed()) return false;
1514 return VectorList.Count == 2 && VectorList.LaneIndex <= 7;
1517 bool isVecListTwoDHWordIndexed() const {
1518 if (!isSingleSpacedVectorIndexed()) return false;
1519 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1522 bool isVecListTwoQWordIndexed() const {
1523 if (!isDoubleSpacedVectorIndexed()) return false;
1524 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1527 bool isVecListTwoQHWordIndexed() const {
1528 if (!isDoubleSpacedVectorIndexed()) return false;
1529 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1532 bool isVecListTwoDWordIndexed() const {
1533 if (!isSingleSpacedVectorIndexed()) return false;
1534 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1537 bool isVecListThreeDByteIndexed() const {
1538 if (!isSingleSpacedVectorIndexed()) return false;
1539 return VectorList.Count == 3 && VectorList.LaneIndex <= 7;
1542 bool isVecListThreeDHWordIndexed() const {
1543 if (!isSingleSpacedVectorIndexed()) return false;
1544 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1547 bool isVecListThreeQWordIndexed() const {
1548 if (!isDoubleSpacedVectorIndexed()) return false;
1549 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1552 bool isVecListThreeQHWordIndexed() const {
1553 if (!isDoubleSpacedVectorIndexed()) return false;
1554 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1557 bool isVecListThreeDWordIndexed() const {
1558 if (!isSingleSpacedVectorIndexed()) return false;
1559 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1562 bool isVecListFourDByteIndexed() const {
1563 if (!isSingleSpacedVectorIndexed()) return false;
1564 return VectorList.Count == 4 && VectorList.LaneIndex <= 7;
1567 bool isVecListFourDHWordIndexed() const {
1568 if (!isSingleSpacedVectorIndexed()) return false;
1569 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1572 bool isVecListFourQWordIndexed() const {
1573 if (!isDoubleSpacedVectorIndexed()) return false;
1574 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1577 bool isVecListFourQHWordIndexed() const {
1578 if (!isDoubleSpacedVectorIndexed()) return false;
1579 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1582 bool isVecListFourDWordIndexed() const {
1583 if (!isSingleSpacedVectorIndexed()) return false;
1584 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1587 bool isVectorIndex8() const {
1588 if (Kind != k_VectorIndex) return false;
1589 return VectorIndex.Val < 8;
1591 bool isVectorIndex16() const {
1592 if (Kind != k_VectorIndex) return false;
1593 return VectorIndex.Val < 4;
1595 bool isVectorIndex32() const {
1596 if (Kind != k_VectorIndex) return false;
1597 return VectorIndex.Val < 2;
1600 bool isNEONi8splat() const {
1601 if (!isImm()) return false;
1602 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1603 // Must be a constant.
1604 if (!CE) return false;
1605 int64_t Value = CE->getValue();
1606 // i8 value splatted across 8 bytes. The immediate is just the 8 byte
1608 return Value >= 0 && Value < 256;
1611 bool isNEONi16splat() const {
1612 if (!isImm()) return false;
1613 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1614 // Must be a constant.
1615 if (!CE) return false;
1616 int64_t Value = CE->getValue();
1617 // i16 value in the range [0,255] or [0x0100, 0xff00]
1618 return (Value >= 0 && Value < 256) || (Value >= 0x0100 && Value <= 0xff00);
1621 bool isNEONi32splat() const {
1622 if (!isImm()) return false;
1623 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1624 // Must be a constant.
1625 if (!CE) return false;
1626 int64_t Value = CE->getValue();
1627 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X.
1628 return (Value >= 0 && Value < 256) ||
1629 (Value >= 0x0100 && Value <= 0xff00) ||
1630 (Value >= 0x010000 && Value <= 0xff0000) ||
1631 (Value >= 0x01000000 && Value <= 0xff000000);
1634 bool isNEONi32vmov() const {
1635 if (!isImm()) return false;
1636 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1637 // Must be a constant.
1638 if (!CE) return false;
1639 int64_t Value = CE->getValue();
1640 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1641 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1642 return (Value >= 0 && Value < 256) ||
1643 (Value >= 0x0100 && Value <= 0xff00) ||
1644 (Value >= 0x010000 && Value <= 0xff0000) ||
1645 (Value >= 0x01000000 && Value <= 0xff000000) ||
1646 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1647 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1649 bool isNEONi32vmovNeg() const {
1650 if (!isImm()) return false;
1651 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1652 // Must be a constant.
1653 if (!CE) return false;
1654 int64_t Value = ~CE->getValue();
1655 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1656 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1657 return (Value >= 0 && Value < 256) ||
1658 (Value >= 0x0100 && Value <= 0xff00) ||
1659 (Value >= 0x010000 && Value <= 0xff0000) ||
1660 (Value >= 0x01000000 && Value <= 0xff000000) ||
1661 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1662 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1665 bool isNEONi64splat() const {
1666 if (!isImm()) return false;
1667 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1668 // Must be a constant.
1669 if (!CE) return false;
1670 uint64_t Value = CE->getValue();
1671 // i64 value with each byte being either 0 or 0xff.
1672 for (unsigned i = 0; i < 8; ++i)
1673 if ((Value & 0xff) != 0 && (Value & 0xff) != 0xff) return false;
1677 void addExpr(MCInst &Inst, const MCExpr *Expr) const {
1678 // Add as immediates when possible. Null MCExpr = 0.
1680 Inst.addOperand(MCOperand::CreateImm(0));
1681 else if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr))
1682 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1684 Inst.addOperand(MCOperand::CreateExpr(Expr));
1687 void addCondCodeOperands(MCInst &Inst, unsigned N) const {
1688 assert(N == 2 && "Invalid number of operands!");
1689 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1690 unsigned RegNum = getCondCode() == ARMCC::AL ? 0: ARM::CPSR;
1691 Inst.addOperand(MCOperand::CreateReg(RegNum));
1694 void addCoprocNumOperands(MCInst &Inst, unsigned N) const {
1695 assert(N == 1 && "Invalid number of operands!");
1696 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1699 void addCoprocRegOperands(MCInst &Inst, unsigned N) const {
1700 assert(N == 1 && "Invalid number of operands!");
1701 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1704 void addCoprocOptionOperands(MCInst &Inst, unsigned N) const {
1705 assert(N == 1 && "Invalid number of operands!");
1706 Inst.addOperand(MCOperand::CreateImm(CoprocOption.Val));
1709 void addITMaskOperands(MCInst &Inst, unsigned N) const {
1710 assert(N == 1 && "Invalid number of operands!");
1711 Inst.addOperand(MCOperand::CreateImm(ITMask.Mask));
1714 void addITCondCodeOperands(MCInst &Inst, unsigned N) const {
1715 assert(N == 1 && "Invalid number of operands!");
1716 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1719 void addCCOutOperands(MCInst &Inst, unsigned N) const {
1720 assert(N == 1 && "Invalid number of operands!");
1721 Inst.addOperand(MCOperand::CreateReg(getReg()));
1724 void addRegOperands(MCInst &Inst, unsigned N) const {
1725 assert(N == 1 && "Invalid number of operands!");
1726 Inst.addOperand(MCOperand::CreateReg(getReg()));
1729 void addRegShiftedRegOperands(MCInst &Inst, unsigned N) const {
1730 assert(N == 3 && "Invalid number of operands!");
1731 assert(isRegShiftedReg() &&
1732 "addRegShiftedRegOperands() on non-RegShiftedReg!");
1733 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.SrcReg));
1734 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.ShiftReg));
1735 Inst.addOperand(MCOperand::CreateImm(
1736 ARM_AM::getSORegOpc(RegShiftedReg.ShiftTy, RegShiftedReg.ShiftImm)));
1739 void addRegShiftedImmOperands(MCInst &Inst, unsigned N) const {
1740 assert(N == 2 && "Invalid number of operands!");
1741 assert(isRegShiftedImm() &&
1742 "addRegShiftedImmOperands() on non-RegShiftedImm!");
1743 Inst.addOperand(MCOperand::CreateReg(RegShiftedImm.SrcReg));
1744 // Shift of #32 is encoded as 0 where permitted
1745 unsigned Imm = (RegShiftedImm.ShiftImm == 32 ? 0 : RegShiftedImm.ShiftImm);
1746 Inst.addOperand(MCOperand::CreateImm(
1747 ARM_AM::getSORegOpc(RegShiftedImm.ShiftTy, Imm)));
1750 void addShifterImmOperands(MCInst &Inst, unsigned N) const {
1751 assert(N == 1 && "Invalid number of operands!");
1752 Inst.addOperand(MCOperand::CreateImm((ShifterImm.isASR << 5) |
1756 void addRegListOperands(MCInst &Inst, unsigned N) const {
1757 assert(N == 1 && "Invalid number of operands!");
1758 const SmallVectorImpl<unsigned> &RegList = getRegList();
1759 for (SmallVectorImpl<unsigned>::const_iterator
1760 I = RegList.begin(), E = RegList.end(); I != E; ++I)
1761 Inst.addOperand(MCOperand::CreateReg(*I));
1764 void addDPRRegListOperands(MCInst &Inst, unsigned N) const {
1765 addRegListOperands(Inst, N);
1768 void addSPRRegListOperands(MCInst &Inst, unsigned N) const {
1769 addRegListOperands(Inst, N);
1772 void addRotImmOperands(MCInst &Inst, unsigned N) const {
1773 assert(N == 1 && "Invalid number of operands!");
1774 // Encoded as val>>3. The printer handles display as 8, 16, 24.
1775 Inst.addOperand(MCOperand::CreateImm(RotImm.Imm >> 3));
1778 void addBitfieldOperands(MCInst &Inst, unsigned N) const {
1779 assert(N == 1 && "Invalid number of operands!");
1780 // Munge the lsb/width into a bitfield mask.
1781 unsigned lsb = Bitfield.LSB;
1782 unsigned width = Bitfield.Width;
1783 // Make a 32-bit mask w/ the referenced bits clear and all other bits set.
1784 uint32_t Mask = ~(((uint32_t)0xffffffff >> lsb) << (32 - width) >>
1785 (32 - (lsb + width)));
1786 Inst.addOperand(MCOperand::CreateImm(Mask));
1789 void addImmOperands(MCInst &Inst, unsigned N) const {
1790 assert(N == 1 && "Invalid number of operands!");
1791 addExpr(Inst, getImm());
1794 void addFBits16Operands(MCInst &Inst, unsigned N) const {
1795 assert(N == 1 && "Invalid number of operands!");
1796 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1797 Inst.addOperand(MCOperand::CreateImm(16 - CE->getValue()));
1800 void addFBits32Operands(MCInst &Inst, unsigned N) const {
1801 assert(N == 1 && "Invalid number of operands!");
1802 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1803 Inst.addOperand(MCOperand::CreateImm(32 - CE->getValue()));
1806 void addFPImmOperands(MCInst &Inst, unsigned N) const {
1807 assert(N == 1 && "Invalid number of operands!");
1808 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1809 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
1810 Inst.addOperand(MCOperand::CreateImm(Val));
1813 void addImm8s4Operands(MCInst &Inst, unsigned N) const {
1814 assert(N == 1 && "Invalid number of operands!");
1815 // FIXME: We really want to scale the value here, but the LDRD/STRD
1816 // instruction don't encode operands that way yet.
1817 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1818 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1821 void addImm0_1020s4Operands(MCInst &Inst, unsigned N) const {
1822 assert(N == 1 && "Invalid number of operands!");
1823 // The immediate is scaled by four in the encoding and is stored
1824 // in the MCInst as such. Lop off the low two bits here.
1825 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1826 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1829 void addImm0_508s4NegOperands(MCInst &Inst, unsigned N) const {
1830 assert(N == 1 && "Invalid number of operands!");
1831 // The immediate is scaled by four in the encoding and is stored
1832 // in the MCInst as such. Lop off the low two bits here.
1833 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1834 Inst.addOperand(MCOperand::CreateImm(-(CE->getValue() / 4)));
1837 void addImm0_508s4Operands(MCInst &Inst, unsigned N) const {
1838 assert(N == 1 && "Invalid number of operands!");
1839 // The immediate is scaled by four in the encoding and is stored
1840 // in the MCInst as such. Lop off the low two bits here.
1841 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1842 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1845 void addImm1_16Operands(MCInst &Inst, unsigned N) const {
1846 assert(N == 1 && "Invalid number of operands!");
1847 // The constant encodes as the immediate-1, and we store in the instruction
1848 // the bits as encoded, so subtract off one here.
1849 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1850 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1853 void addImm1_32Operands(MCInst &Inst, unsigned N) const {
1854 assert(N == 1 && "Invalid number of operands!");
1855 // The constant encodes as the immediate-1, and we store in the instruction
1856 // the bits as encoded, so subtract off one here.
1857 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1858 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1861 void addImmThumbSROperands(MCInst &Inst, unsigned N) const {
1862 assert(N == 1 && "Invalid number of operands!");
1863 // The constant encodes as the immediate, except for 32, which encodes as
1865 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1866 unsigned Imm = CE->getValue();
1867 Inst.addOperand(MCOperand::CreateImm((Imm == 32 ? 0 : Imm)));
1870 void addPKHASRImmOperands(MCInst &Inst, unsigned N) const {
1871 assert(N == 1 && "Invalid number of operands!");
1872 // An ASR value of 32 encodes as 0, so that's how we want to add it to
1873 // the instruction as well.
1874 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1875 int Val = CE->getValue();
1876 Inst.addOperand(MCOperand::CreateImm(Val == 32 ? 0 : Val));
1879 void addT2SOImmNotOperands(MCInst &Inst, unsigned N) const {
1880 assert(N == 1 && "Invalid number of operands!");
1881 // The operand is actually a t2_so_imm, but we have its bitwise
1882 // negation in the assembly source, so twiddle it here.
1883 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1884 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1887 void addT2SOImmNegOperands(MCInst &Inst, unsigned N) const {
1888 assert(N == 1 && "Invalid number of operands!");
1889 // The operand is actually a t2_so_imm, but we have its
1890 // negation in the assembly source, so twiddle it here.
1891 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1892 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1895 void addImm0_4095NegOperands(MCInst &Inst, unsigned N) const {
1896 assert(N == 1 && "Invalid number of operands!");
1897 // The operand is actually an imm0_4095, but we have its
1898 // negation in the assembly source, so twiddle it here.
1899 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1900 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1903 void addUnsignedOffset_b8s2Operands(MCInst &Inst, unsigned N) const {
1904 if(const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm())) {
1905 Inst.addOperand(MCOperand::CreateImm(CE->getValue() >> 2));
1909 const MCSymbolRefExpr *SR = dyn_cast<MCSymbolRefExpr>(Imm.Val);
1910 assert(SR && "Unknown value type!");
1911 Inst.addOperand(MCOperand::CreateExpr(SR));
1914 void addThumbMemPCOperands(MCInst &Inst, unsigned N) const {
1915 assert(N == 1 && "Invalid number of operands!");
1917 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1919 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1923 const MCSymbolRefExpr *SR = dyn_cast<MCSymbolRefExpr>(Imm.Val);
1924 assert(SR && "Unknown value type!");
1925 Inst.addOperand(MCOperand::CreateExpr(SR));
1929 assert(isMem() && "Unknown value type!");
1930 assert(isa<MCConstantExpr>(Memory.OffsetImm) && "Unknown value type!");
1931 Inst.addOperand(MCOperand::CreateImm(Memory.OffsetImm->getValue()));
1934 void addARMSOImmNotOperands(MCInst &Inst, unsigned N) const {
1935 assert(N == 1 && "Invalid number of operands!");
1936 // The operand is actually a so_imm, but we have its bitwise
1937 // negation in the assembly source, so twiddle it here.
1938 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1939 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1942 void addARMSOImmNegOperands(MCInst &Inst, unsigned N) const {
1943 assert(N == 1 && "Invalid number of operands!");
1944 // The operand is actually a so_imm, but we have its
1945 // negation in the assembly source, so twiddle it here.
1946 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1947 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1950 void addMemBarrierOptOperands(MCInst &Inst, unsigned N) const {
1951 assert(N == 1 && "Invalid number of operands!");
1952 Inst.addOperand(MCOperand::CreateImm(unsigned(getMemBarrierOpt())));
1955 void addInstSyncBarrierOptOperands(MCInst &Inst, unsigned N) const {
1956 assert(N == 1 && "Invalid number of operands!");
1957 Inst.addOperand(MCOperand::CreateImm(unsigned(getInstSyncBarrierOpt())));
1960 void addMemNoOffsetOperands(MCInst &Inst, unsigned N) const {
1961 assert(N == 1 && "Invalid number of operands!");
1962 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1965 void addMemPCRelImm12Operands(MCInst &Inst, unsigned N) const {
1966 assert(N == 1 && "Invalid number of operands!");
1967 int32_t Imm = Memory.OffsetImm->getValue();
1968 Inst.addOperand(MCOperand::CreateImm(Imm));
1971 void addAdrLabelOperands(MCInst &Inst, unsigned N) const {
1972 assert(N == 1 && "Invalid number of operands!");
1973 assert(isImm() && "Not an immediate!");
1975 // If we have an immediate that's not a constant, treat it as a label
1976 // reference needing a fixup.
1977 if (!isa<MCConstantExpr>(getImm())) {
1978 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1982 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1983 int Val = CE->getValue();
1984 Inst.addOperand(MCOperand::CreateImm(Val));
1987 void addAlignedMemoryOperands(MCInst &Inst, unsigned N) const {
1988 assert(N == 2 && "Invalid number of operands!");
1989 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1990 Inst.addOperand(MCOperand::CreateImm(Memory.Alignment));
1993 void addAddrMode2Operands(MCInst &Inst, unsigned N) const {
1994 assert(N == 3 && "Invalid number of operands!");
1995 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1996 if (!Memory.OffsetRegNum) {
1997 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1998 // Special case for #-0
1999 if (Val == INT32_MIN) Val = 0;
2000 if (Val < 0) Val = -Val;
2001 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
2003 // For register offset, we encode the shift type and negation flag
2005 Val = ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
2006 Memory.ShiftImm, Memory.ShiftType);
2008 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2009 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2010 Inst.addOperand(MCOperand::CreateImm(Val));
2013 void addAM2OffsetImmOperands(MCInst &Inst, unsigned N) const {
2014 assert(N == 2 && "Invalid number of operands!");
2015 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2016 assert(CE && "non-constant AM2OffsetImm operand!");
2017 int32_t Val = CE->getValue();
2018 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2019 // Special case for #-0
2020 if (Val == INT32_MIN) Val = 0;
2021 if (Val < 0) Val = -Val;
2022 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
2023 Inst.addOperand(MCOperand::CreateReg(0));
2024 Inst.addOperand(MCOperand::CreateImm(Val));
2027 void addAddrMode3Operands(MCInst &Inst, unsigned N) const {
2028 assert(N == 3 && "Invalid number of operands!");
2029 // If we have an immediate that's not a constant, treat it as a label
2030 // reference needing a fixup. If it is a constant, it's something else
2031 // and we reject it.
2033 Inst.addOperand(MCOperand::CreateExpr(getImm()));
2034 Inst.addOperand(MCOperand::CreateReg(0));
2035 Inst.addOperand(MCOperand::CreateImm(0));
2039 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2040 if (!Memory.OffsetRegNum) {
2041 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2042 // Special case for #-0
2043 if (Val == INT32_MIN) Val = 0;
2044 if (Val < 0) Val = -Val;
2045 Val = ARM_AM::getAM3Opc(AddSub, Val);
2047 // For register offset, we encode the shift type and negation flag
2049 Val = ARM_AM::getAM3Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add, 0);
2051 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2052 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2053 Inst.addOperand(MCOperand::CreateImm(Val));
2056 void addAM3OffsetOperands(MCInst &Inst, unsigned N) const {
2057 assert(N == 2 && "Invalid number of operands!");
2058 if (Kind == k_PostIndexRegister) {
2060 ARM_AM::getAM3Opc(PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub, 0);
2061 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
2062 Inst.addOperand(MCOperand::CreateImm(Val));
2067 const MCConstantExpr *CE = static_cast<const MCConstantExpr*>(getImm());
2068 int32_t Val = CE->getValue();
2069 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2070 // Special case for #-0
2071 if (Val == INT32_MIN) Val = 0;
2072 if (Val < 0) Val = -Val;
2073 Val = ARM_AM::getAM3Opc(AddSub, Val);
2074 Inst.addOperand(MCOperand::CreateReg(0));
2075 Inst.addOperand(MCOperand::CreateImm(Val));
2078 void addAddrMode5Operands(MCInst &Inst, unsigned N) const {
2079 assert(N == 2 && "Invalid number of operands!");
2080 // If we have an immediate that's not a constant, treat it as a label
2081 // reference needing a fixup. If it is a constant, it's something else
2082 // and we reject it.
2084 Inst.addOperand(MCOperand::CreateExpr(getImm()));
2085 Inst.addOperand(MCOperand::CreateImm(0));
2089 // The lower two bits are always zero and as such are not encoded.
2090 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
2091 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2092 // Special case for #-0
2093 if (Val == INT32_MIN) Val = 0;
2094 if (Val < 0) Val = -Val;
2095 Val = ARM_AM::getAM5Opc(AddSub, Val);
2096 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2097 Inst.addOperand(MCOperand::CreateImm(Val));
2100 void addMemImm8s4OffsetOperands(MCInst &Inst, unsigned N) const {
2101 assert(N == 2 && "Invalid number of operands!");
2102 // If we have an immediate that's not a constant, treat it as a label
2103 // reference needing a fixup. If it is a constant, it's something else
2104 // and we reject it.
2106 Inst.addOperand(MCOperand::CreateExpr(getImm()));
2107 Inst.addOperand(MCOperand::CreateImm(0));
2111 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2112 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2113 Inst.addOperand(MCOperand::CreateImm(Val));
2116 void addMemImm0_1020s4OffsetOperands(MCInst &Inst, unsigned N) const {
2117 assert(N == 2 && "Invalid number of operands!");
2118 // The lower two bits are always zero and as such are not encoded.
2119 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
2120 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2121 Inst.addOperand(MCOperand::CreateImm(Val));
2124 void addMemImm8OffsetOperands(MCInst &Inst, unsigned N) const {
2125 assert(N == 2 && "Invalid number of operands!");
2126 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2127 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2128 Inst.addOperand(MCOperand::CreateImm(Val));
2131 void addMemPosImm8OffsetOperands(MCInst &Inst, unsigned N) const {
2132 addMemImm8OffsetOperands(Inst, N);
2135 void addMemNegImm8OffsetOperands(MCInst &Inst, unsigned N) const {
2136 addMemImm8OffsetOperands(Inst, N);
2139 void addMemUImm12OffsetOperands(MCInst &Inst, unsigned N) const {
2140 assert(N == 2 && "Invalid number of operands!");
2141 // If this is an immediate, it's a label reference.
2143 addExpr(Inst, getImm());
2144 Inst.addOperand(MCOperand::CreateImm(0));
2148 // Otherwise, it's a normal memory reg+offset.
2149 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2150 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2151 Inst.addOperand(MCOperand::CreateImm(Val));
2154 void addMemImm12OffsetOperands(MCInst &Inst, unsigned N) const {
2155 assert(N == 2 && "Invalid number of operands!");
2156 // If this is an immediate, it's a label reference.
2158 addExpr(Inst, getImm());
2159 Inst.addOperand(MCOperand::CreateImm(0));
2163 // Otherwise, it's a normal memory reg+offset.
2164 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2165 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2166 Inst.addOperand(MCOperand::CreateImm(Val));
2169 void addMemTBBOperands(MCInst &Inst, unsigned N) const {
2170 assert(N == 2 && "Invalid number of operands!");
2171 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2172 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2175 void addMemTBHOperands(MCInst &Inst, unsigned N) const {
2176 assert(N == 2 && "Invalid number of operands!");
2177 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2178 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2181 void addMemRegOffsetOperands(MCInst &Inst, unsigned N) const {
2182 assert(N == 3 && "Invalid number of operands!");
2184 ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
2185 Memory.ShiftImm, Memory.ShiftType);
2186 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2187 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2188 Inst.addOperand(MCOperand::CreateImm(Val));
2191 void addT2MemRegOffsetOperands(MCInst &Inst, unsigned N) const {
2192 assert(N == 3 && "Invalid number of operands!");
2193 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2194 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2195 Inst.addOperand(MCOperand::CreateImm(Memory.ShiftImm));
2198 void addMemThumbRROperands(MCInst &Inst, unsigned N) const {
2199 assert(N == 2 && "Invalid number of operands!");
2200 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2201 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2204 void addMemThumbRIs4Operands(MCInst &Inst, unsigned N) const {
2205 assert(N == 2 && "Invalid number of operands!");
2206 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
2207 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2208 Inst.addOperand(MCOperand::CreateImm(Val));
2211 void addMemThumbRIs2Operands(MCInst &Inst, unsigned N) const {
2212 assert(N == 2 && "Invalid number of operands!");
2213 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 2) : 0;
2214 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2215 Inst.addOperand(MCOperand::CreateImm(Val));
2218 void addMemThumbRIs1Operands(MCInst &Inst, unsigned N) const {
2219 assert(N == 2 && "Invalid number of operands!");
2220 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue()) : 0;
2221 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2222 Inst.addOperand(MCOperand::CreateImm(Val));
2225 void addMemThumbSPIOperands(MCInst &Inst, unsigned N) const {
2226 assert(N == 2 && "Invalid number of operands!");
2227 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
2228 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2229 Inst.addOperand(MCOperand::CreateImm(Val));
2232 void addPostIdxImm8Operands(MCInst &Inst, unsigned N) const {
2233 assert(N == 1 && "Invalid number of operands!");
2234 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2235 assert(CE && "non-constant post-idx-imm8 operand!");
2236 int Imm = CE->getValue();
2237 bool isAdd = Imm >= 0;
2238 if (Imm == INT32_MIN) Imm = 0;
2239 Imm = (Imm < 0 ? -Imm : Imm) | (int)isAdd << 8;
2240 Inst.addOperand(MCOperand::CreateImm(Imm));
2243 void addPostIdxImm8s4Operands(MCInst &Inst, unsigned N) const {
2244 assert(N == 1 && "Invalid number of operands!");
2245 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2246 assert(CE && "non-constant post-idx-imm8s4 operand!");
2247 int Imm = CE->getValue();
2248 bool isAdd = Imm >= 0;
2249 if (Imm == INT32_MIN) Imm = 0;
2250 // Immediate is scaled by 4.
2251 Imm = ((Imm < 0 ? -Imm : Imm) / 4) | (int)isAdd << 8;
2252 Inst.addOperand(MCOperand::CreateImm(Imm));
2255 void addPostIdxRegOperands(MCInst &Inst, unsigned N) const {
2256 assert(N == 2 && "Invalid number of operands!");
2257 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
2258 Inst.addOperand(MCOperand::CreateImm(PostIdxReg.isAdd));
2261 void addPostIdxRegShiftedOperands(MCInst &Inst, unsigned N) const {
2262 assert(N == 2 && "Invalid number of operands!");
2263 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
2264 // The sign, shift type, and shift amount are encoded in a single operand
2265 // using the AM2 encoding helpers.
2266 ARM_AM::AddrOpc opc = PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub;
2267 unsigned Imm = ARM_AM::getAM2Opc(opc, PostIdxReg.ShiftImm,
2268 PostIdxReg.ShiftTy);
2269 Inst.addOperand(MCOperand::CreateImm(Imm));
2272 void addMSRMaskOperands(MCInst &Inst, unsigned N) const {
2273 assert(N == 1 && "Invalid number of operands!");
2274 Inst.addOperand(MCOperand::CreateImm(unsigned(getMSRMask())));
2277 void addProcIFlagsOperands(MCInst &Inst, unsigned N) const {
2278 assert(N == 1 && "Invalid number of operands!");
2279 Inst.addOperand(MCOperand::CreateImm(unsigned(getProcIFlags())));
2282 void addVecListOperands(MCInst &Inst, unsigned N) const {
2283 assert(N == 1 && "Invalid number of operands!");
2284 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
2287 void addVecListIndexedOperands(MCInst &Inst, unsigned N) const {
2288 assert(N == 2 && "Invalid number of operands!");
2289 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
2290 Inst.addOperand(MCOperand::CreateImm(VectorList.LaneIndex));
2293 void addVectorIndex8Operands(MCInst &Inst, unsigned N) const {
2294 assert(N == 1 && "Invalid number of operands!");
2295 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2298 void addVectorIndex16Operands(MCInst &Inst, unsigned N) const {
2299 assert(N == 1 && "Invalid number of operands!");
2300 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2303 void addVectorIndex32Operands(MCInst &Inst, unsigned N) const {
2304 assert(N == 1 && "Invalid number of operands!");
2305 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2308 void addNEONi8splatOperands(MCInst &Inst, unsigned N) const {
2309 assert(N == 1 && "Invalid number of operands!");
2310 // The immediate encodes the type of constant as well as the value.
2311 // Mask in that this is an i8 splat.
2312 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2313 Inst.addOperand(MCOperand::CreateImm(CE->getValue() | 0xe00));
2316 void addNEONi16splatOperands(MCInst &Inst, unsigned N) const {
2317 assert(N == 1 && "Invalid number of operands!");
2318 // The immediate encodes the type of constant as well as the value.
2319 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2320 unsigned Value = CE->getValue();
2322 Value = (Value >> 8) | 0xa00;
2325 Inst.addOperand(MCOperand::CreateImm(Value));
2328 void addNEONi32splatOperands(MCInst &Inst, unsigned N) const {
2329 assert(N == 1 && "Invalid number of operands!");
2330 // The immediate encodes the type of constant as well as the value.
2331 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2332 unsigned Value = CE->getValue();
2333 if (Value >= 256 && Value <= 0xff00)
2334 Value = (Value >> 8) | 0x200;
2335 else if (Value > 0xffff && Value <= 0xff0000)
2336 Value = (Value >> 16) | 0x400;
2337 else if (Value > 0xffffff)
2338 Value = (Value >> 24) | 0x600;
2339 Inst.addOperand(MCOperand::CreateImm(Value));
2342 void addNEONi32vmovOperands(MCInst &Inst, unsigned N) const {
2343 assert(N == 1 && "Invalid number of operands!");
2344 // The immediate encodes the type of constant as well as the value.
2345 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2346 unsigned Value = CE->getValue();
2347 if (Value >= 256 && Value <= 0xffff)
2348 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2349 else if (Value > 0xffff && Value <= 0xffffff)
2350 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2351 else if (Value > 0xffffff)
2352 Value = (Value >> 24) | 0x600;
2353 Inst.addOperand(MCOperand::CreateImm(Value));
2356 void addNEONi32vmovNegOperands(MCInst &Inst, unsigned N) const {
2357 assert(N == 1 && "Invalid number of operands!");
2358 // The immediate encodes the type of constant as well as the value.
2359 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2360 unsigned Value = ~CE->getValue();
2361 if (Value >= 256 && Value <= 0xffff)
2362 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2363 else if (Value > 0xffff && Value <= 0xffffff)
2364 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2365 else if (Value > 0xffffff)
2366 Value = (Value >> 24) | 0x600;
2367 Inst.addOperand(MCOperand::CreateImm(Value));
2370 void addNEONi64splatOperands(MCInst &Inst, unsigned N) const {
2371 assert(N == 1 && "Invalid number of operands!");
2372 // The immediate encodes the type of constant as well as the value.
2373 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2374 uint64_t Value = CE->getValue();
2376 for (unsigned i = 0; i < 8; ++i, Value >>= 8) {
2377 Imm |= (Value & 1) << i;
2379 Inst.addOperand(MCOperand::CreateImm(Imm | 0x1e00));
2382 virtual void print(raw_ostream &OS) const;
2384 static ARMOperand *CreateITMask(unsigned Mask, SMLoc S) {
2385 ARMOperand *Op = new ARMOperand(k_ITCondMask);
2386 Op->ITMask.Mask = Mask;
2392 static ARMOperand *CreateCondCode(ARMCC::CondCodes CC, SMLoc S) {
2393 ARMOperand *Op = new ARMOperand(k_CondCode);
2400 static ARMOperand *CreateCoprocNum(unsigned CopVal, SMLoc S) {
2401 ARMOperand *Op = new ARMOperand(k_CoprocNum);
2402 Op->Cop.Val = CopVal;
2408 static ARMOperand *CreateCoprocReg(unsigned CopVal, SMLoc S) {
2409 ARMOperand *Op = new ARMOperand(k_CoprocReg);
2410 Op->Cop.Val = CopVal;
2416 static ARMOperand *CreateCoprocOption(unsigned Val, SMLoc S, SMLoc E) {
2417 ARMOperand *Op = new ARMOperand(k_CoprocOption);
2424 static ARMOperand *CreateCCOut(unsigned RegNum, SMLoc S) {
2425 ARMOperand *Op = new ARMOperand(k_CCOut);
2426 Op->Reg.RegNum = RegNum;
2432 static ARMOperand *CreateToken(StringRef Str, SMLoc S) {
2433 ARMOperand *Op = new ARMOperand(k_Token);
2434 Op->Tok.Data = Str.data();
2435 Op->Tok.Length = Str.size();
2441 static ARMOperand *CreateReg(unsigned RegNum, SMLoc S, SMLoc E) {
2442 ARMOperand *Op = new ARMOperand(k_Register);
2443 Op->Reg.RegNum = RegNum;
2449 static ARMOperand *CreateShiftedRegister(ARM_AM::ShiftOpc ShTy,
2454 ARMOperand *Op = new ARMOperand(k_ShiftedRegister);
2455 Op->RegShiftedReg.ShiftTy = ShTy;
2456 Op->RegShiftedReg.SrcReg = SrcReg;
2457 Op->RegShiftedReg.ShiftReg = ShiftReg;
2458 Op->RegShiftedReg.ShiftImm = ShiftImm;
2464 static ARMOperand *CreateShiftedImmediate(ARM_AM::ShiftOpc ShTy,
2468 ARMOperand *Op = new ARMOperand(k_ShiftedImmediate);
2469 Op->RegShiftedImm.ShiftTy = ShTy;
2470 Op->RegShiftedImm.SrcReg = SrcReg;
2471 Op->RegShiftedImm.ShiftImm = ShiftImm;
2477 static ARMOperand *CreateShifterImm(bool isASR, unsigned Imm,
2479 ARMOperand *Op = new ARMOperand(k_ShifterImmediate);
2480 Op->ShifterImm.isASR = isASR;
2481 Op->ShifterImm.Imm = Imm;
2487 static ARMOperand *CreateRotImm(unsigned Imm, SMLoc S, SMLoc E) {
2488 ARMOperand *Op = new ARMOperand(k_RotateImmediate);
2489 Op->RotImm.Imm = Imm;
2495 static ARMOperand *CreateBitfield(unsigned LSB, unsigned Width,
2497 ARMOperand *Op = new ARMOperand(k_BitfieldDescriptor);
2498 Op->Bitfield.LSB = LSB;
2499 Op->Bitfield.Width = Width;
2506 CreateRegList(SmallVectorImpl<std::pair<unsigned, unsigned> > &Regs,
2507 SMLoc StartLoc, SMLoc EndLoc) {
2508 assert (Regs.size() > 0 && "RegList contains no registers?");
2509 KindTy Kind = k_RegisterList;
2511 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Regs.front().second))
2512 Kind = k_DPRRegisterList;
2513 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].
2514 contains(Regs.front().second))
2515 Kind = k_SPRRegisterList;
2517 // Sort based on the register encoding values.
2518 array_pod_sort(Regs.begin(), Regs.end());
2520 ARMOperand *Op = new ARMOperand(Kind);
2521 for (SmallVectorImpl<std::pair<unsigned, unsigned> >::const_iterator
2522 I = Regs.begin(), E = Regs.end(); I != E; ++I)
2523 Op->Registers.push_back(I->second);
2524 Op->StartLoc = StartLoc;
2525 Op->EndLoc = EndLoc;
2529 static ARMOperand *CreateVectorList(unsigned RegNum, unsigned Count,
2530 bool isDoubleSpaced, SMLoc S, SMLoc E) {
2531 ARMOperand *Op = new ARMOperand(k_VectorList);
2532 Op->VectorList.RegNum = RegNum;
2533 Op->VectorList.Count = Count;
2534 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2540 static ARMOperand *CreateVectorListAllLanes(unsigned RegNum, unsigned Count,
2541 bool isDoubleSpaced,
2543 ARMOperand *Op = new ARMOperand(k_VectorListAllLanes);
2544 Op->VectorList.RegNum = RegNum;
2545 Op->VectorList.Count = Count;
2546 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2552 static ARMOperand *CreateVectorListIndexed(unsigned RegNum, unsigned Count,
2554 bool isDoubleSpaced,
2556 ARMOperand *Op = new ARMOperand(k_VectorListIndexed);
2557 Op->VectorList.RegNum = RegNum;
2558 Op->VectorList.Count = Count;
2559 Op->VectorList.LaneIndex = Index;
2560 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2566 static ARMOperand *CreateVectorIndex(unsigned Idx, SMLoc S, SMLoc E,
2568 ARMOperand *Op = new ARMOperand(k_VectorIndex);
2569 Op->VectorIndex.Val = Idx;
2575 static ARMOperand *CreateImm(const MCExpr *Val, SMLoc S, SMLoc E) {
2576 ARMOperand *Op = new ARMOperand(k_Immediate);
2583 static ARMOperand *CreateMem(unsigned BaseRegNum,
2584 const MCConstantExpr *OffsetImm,
2585 unsigned OffsetRegNum,
2586 ARM_AM::ShiftOpc ShiftType,
2591 ARMOperand *Op = new ARMOperand(k_Memory);
2592 Op->Memory.BaseRegNum = BaseRegNum;
2593 Op->Memory.OffsetImm = OffsetImm;
2594 Op->Memory.OffsetRegNum = OffsetRegNum;
2595 Op->Memory.ShiftType = ShiftType;
2596 Op->Memory.ShiftImm = ShiftImm;
2597 Op->Memory.Alignment = Alignment;
2598 Op->Memory.isNegative = isNegative;
2604 static ARMOperand *CreatePostIdxReg(unsigned RegNum, bool isAdd,
2605 ARM_AM::ShiftOpc ShiftTy,
2608 ARMOperand *Op = new ARMOperand(k_PostIndexRegister);
2609 Op->PostIdxReg.RegNum = RegNum;
2610 Op->PostIdxReg.isAdd = isAdd;
2611 Op->PostIdxReg.ShiftTy = ShiftTy;
2612 Op->PostIdxReg.ShiftImm = ShiftImm;
2618 static ARMOperand *CreateMemBarrierOpt(ARM_MB::MemBOpt Opt, SMLoc S) {
2619 ARMOperand *Op = new ARMOperand(k_MemBarrierOpt);
2620 Op->MBOpt.Val = Opt;
2626 static ARMOperand *CreateInstSyncBarrierOpt(ARM_ISB::InstSyncBOpt Opt,
2628 ARMOperand *Op = new ARMOperand(k_InstSyncBarrierOpt);
2629 Op->ISBOpt.Val = Opt;
2635 static ARMOperand *CreateProcIFlags(ARM_PROC::IFlags IFlags, SMLoc S) {
2636 ARMOperand *Op = new ARMOperand(k_ProcIFlags);
2637 Op->IFlags.Val = IFlags;
2643 static ARMOperand *CreateMSRMask(unsigned MMask, SMLoc S) {
2644 ARMOperand *Op = new ARMOperand(k_MSRMask);
2645 Op->MMask.Val = MMask;
2652 } // end anonymous namespace.
2654 void ARMOperand::print(raw_ostream &OS) const {
2657 OS << "<ARMCC::" << ARMCondCodeToString(getCondCode()) << ">";
2660 OS << "<ccout " << getReg() << ">";
2662 case k_ITCondMask: {
2663 static const char *const MaskStr[] = {
2664 "()", "(t)", "(e)", "(tt)", "(et)", "(te)", "(ee)", "(ttt)", "(ett)",
2665 "(tet)", "(eet)", "(tte)", "(ete)", "(tee)", "(eee)"
2667 assert((ITMask.Mask & 0xf) == ITMask.Mask);
2668 OS << "<it-mask " << MaskStr[ITMask.Mask] << ">";
2672 OS << "<coprocessor number: " << getCoproc() << ">";
2675 OS << "<coprocessor register: " << getCoproc() << ">";
2677 case k_CoprocOption:
2678 OS << "<coprocessor option: " << CoprocOption.Val << ">";
2681 OS << "<mask: " << getMSRMask() << ">";
2684 getImm()->print(OS);
2686 case k_MemBarrierOpt:
2687 OS << "<ARM_MB::" << MemBOptToString(getMemBarrierOpt(), false) << ">";
2689 case k_InstSyncBarrierOpt:
2690 OS << "<ARM_ISB::" << InstSyncBOptToString(getInstSyncBarrierOpt()) << ">";
2694 << " base:" << Memory.BaseRegNum;
2697 case k_PostIndexRegister:
2698 OS << "post-idx register " << (PostIdxReg.isAdd ? "" : "-")
2699 << PostIdxReg.RegNum;
2700 if (PostIdxReg.ShiftTy != ARM_AM::no_shift)
2701 OS << ARM_AM::getShiftOpcStr(PostIdxReg.ShiftTy) << " "
2702 << PostIdxReg.ShiftImm;
2705 case k_ProcIFlags: {
2706 OS << "<ARM_PROC::";
2707 unsigned IFlags = getProcIFlags();
2708 for (int i=2; i >= 0; --i)
2709 if (IFlags & (1 << i))
2710 OS << ARM_PROC::IFlagsToString(1 << i);
2715 OS << "<register " << getReg() << ">";
2717 case k_ShifterImmediate:
2718 OS << "<shift " << (ShifterImm.isASR ? "asr" : "lsl")
2719 << " #" << ShifterImm.Imm << ">";
2721 case k_ShiftedRegister:
2722 OS << "<so_reg_reg "
2723 << RegShiftedReg.SrcReg << " "
2724 << ARM_AM::getShiftOpcStr(RegShiftedReg.ShiftTy)
2725 << " " << RegShiftedReg.ShiftReg << ">";
2727 case k_ShiftedImmediate:
2728 OS << "<so_reg_imm "
2729 << RegShiftedImm.SrcReg << " "
2730 << ARM_AM::getShiftOpcStr(RegShiftedImm.ShiftTy)
2731 << " #" << RegShiftedImm.ShiftImm << ">";
2733 case k_RotateImmediate:
2734 OS << "<ror " << " #" << (RotImm.Imm * 8) << ">";
2736 case k_BitfieldDescriptor:
2737 OS << "<bitfield " << "lsb: " << Bitfield.LSB
2738 << ", width: " << Bitfield.Width << ">";
2740 case k_RegisterList:
2741 case k_DPRRegisterList:
2742 case k_SPRRegisterList: {
2743 OS << "<register_list ";
2745 const SmallVectorImpl<unsigned> &RegList = getRegList();
2746 for (SmallVectorImpl<unsigned>::const_iterator
2747 I = RegList.begin(), E = RegList.end(); I != E; ) {
2749 if (++I < E) OS << ", ";
2756 OS << "<vector_list " << VectorList.Count << " * "
2757 << VectorList.RegNum << ">";
2759 case k_VectorListAllLanes:
2760 OS << "<vector_list(all lanes) " << VectorList.Count << " * "
2761 << VectorList.RegNum << ">";
2763 case k_VectorListIndexed:
2764 OS << "<vector_list(lane " << VectorList.LaneIndex << ") "
2765 << VectorList.Count << " * " << VectorList.RegNum << ">";
2768 OS << "'" << getToken() << "'";
2771 OS << "<vectorindex " << getVectorIndex() << ">";
2776 /// @name Auto-generated Match Functions
2779 static unsigned MatchRegisterName(StringRef Name);
2783 bool ARMAsmParser::ParseRegister(unsigned &RegNo,
2784 SMLoc &StartLoc, SMLoc &EndLoc) {
2785 StartLoc = Parser.getTok().getLoc();
2786 EndLoc = Parser.getTok().getEndLoc();
2787 RegNo = tryParseRegister();
2789 return (RegNo == (unsigned)-1);
2792 /// Try to parse a register name. The token must be an Identifier when called,
2793 /// and if it is a register name the token is eaten and the register number is
2794 /// returned. Otherwise return -1.
2796 int ARMAsmParser::tryParseRegister() {
2797 const AsmToken &Tok = Parser.getTok();
2798 if (Tok.isNot(AsmToken::Identifier)) return -1;
2800 std::string lowerCase = Tok.getString().lower();
2801 unsigned RegNum = MatchRegisterName(lowerCase);
2803 RegNum = StringSwitch<unsigned>(lowerCase)
2804 .Case("r13", ARM::SP)
2805 .Case("r14", ARM::LR)
2806 .Case("r15", ARM::PC)
2807 .Case("ip", ARM::R12)
2808 // Additional register name aliases for 'gas' compatibility.
2809 .Case("a1", ARM::R0)
2810 .Case("a2", ARM::R1)
2811 .Case("a3", ARM::R2)
2812 .Case("a4", ARM::R3)
2813 .Case("v1", ARM::R4)
2814 .Case("v2", ARM::R5)
2815 .Case("v3", ARM::R6)
2816 .Case("v4", ARM::R7)
2817 .Case("v5", ARM::R8)
2818 .Case("v6", ARM::R9)
2819 .Case("v7", ARM::R10)
2820 .Case("v8", ARM::R11)
2821 .Case("sb", ARM::R9)
2822 .Case("sl", ARM::R10)
2823 .Case("fp", ARM::R11)
2827 // Check for aliases registered via .req. Canonicalize to lower case.
2828 // That's more consistent since register names are case insensitive, and
2829 // it's how the original entry was passed in from MC/MCParser/AsmParser.
2830 StringMap<unsigned>::const_iterator Entry = RegisterReqs.find(lowerCase);
2831 // If no match, return failure.
2832 if (Entry == RegisterReqs.end())
2834 Parser.Lex(); // Eat identifier token.
2835 return Entry->getValue();
2838 Parser.Lex(); // Eat identifier token.
2843 // Try to parse a shifter (e.g., "lsl <amt>"). On success, return 0.
2844 // If a recoverable error occurs, return 1. If an irrecoverable error
2845 // occurs, return -1. An irrecoverable error is one where tokens have been
2846 // consumed in the process of trying to parse the shifter (i.e., when it is
2847 // indeed a shifter operand, but malformed).
2848 int ARMAsmParser::tryParseShiftRegister(
2849 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2850 SMLoc S = Parser.getTok().getLoc();
2851 const AsmToken &Tok = Parser.getTok();
2852 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
2854 std::string lowerCase = Tok.getString().lower();
2855 ARM_AM::ShiftOpc ShiftTy = StringSwitch<ARM_AM::ShiftOpc>(lowerCase)
2856 .Case("asl", ARM_AM::lsl)
2857 .Case("lsl", ARM_AM::lsl)
2858 .Case("lsr", ARM_AM::lsr)
2859 .Case("asr", ARM_AM::asr)
2860 .Case("ror", ARM_AM::ror)
2861 .Case("rrx", ARM_AM::rrx)
2862 .Default(ARM_AM::no_shift);
2864 if (ShiftTy == ARM_AM::no_shift)
2867 Parser.Lex(); // Eat the operator.
2869 // The source register for the shift has already been added to the
2870 // operand list, so we need to pop it off and combine it into the shifted
2871 // register operand instead.
2872 OwningPtr<ARMOperand> PrevOp((ARMOperand*)Operands.pop_back_val());
2873 if (!PrevOp->isReg())
2874 return Error(PrevOp->getStartLoc(), "shift must be of a register");
2875 int SrcReg = PrevOp->getReg();
2880 if (ShiftTy == ARM_AM::rrx) {
2881 // RRX Doesn't have an explicit shift amount. The encoder expects
2882 // the shift register to be the same as the source register. Seems odd,
2886 // Figure out if this is shifted by a constant or a register (for non-RRX).
2887 if (Parser.getTok().is(AsmToken::Hash) ||
2888 Parser.getTok().is(AsmToken::Dollar)) {
2889 Parser.Lex(); // Eat hash.
2890 SMLoc ImmLoc = Parser.getTok().getLoc();
2891 const MCExpr *ShiftExpr = 0;
2892 if (getParser().parseExpression(ShiftExpr, EndLoc)) {
2893 Error(ImmLoc, "invalid immediate shift value");
2896 // The expression must be evaluatable as an immediate.
2897 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftExpr);
2899 Error(ImmLoc, "invalid immediate shift value");
2902 // Range check the immediate.
2903 // lsl, ror: 0 <= imm <= 31
2904 // lsr, asr: 0 <= imm <= 32
2905 Imm = CE->getValue();
2907 ((ShiftTy == ARM_AM::lsl || ShiftTy == ARM_AM::ror) && Imm > 31) ||
2908 ((ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr) && Imm > 32)) {
2909 Error(ImmLoc, "immediate shift value out of range");
2912 // shift by zero is a nop. Always send it through as lsl.
2913 // ('as' compatibility)
2915 ShiftTy = ARM_AM::lsl;
2916 } else if (Parser.getTok().is(AsmToken::Identifier)) {
2917 SMLoc L = Parser.getTok().getLoc();
2918 EndLoc = Parser.getTok().getEndLoc();
2919 ShiftReg = tryParseRegister();
2920 if (ShiftReg == -1) {
2921 Error (L, "expected immediate or register in shift operand");
2925 Error (Parser.getTok().getLoc(),
2926 "expected immediate or register in shift operand");
2931 if (ShiftReg && ShiftTy != ARM_AM::rrx)
2932 Operands.push_back(ARMOperand::CreateShiftedRegister(ShiftTy, SrcReg,
2936 Operands.push_back(ARMOperand::CreateShiftedImmediate(ShiftTy, SrcReg, Imm,
2943 /// Try to parse a register name. The token must be an Identifier when called.
2944 /// If it's a register, an AsmOperand is created. Another AsmOperand is created
2945 /// if there is a "writeback". 'true' if it's not a register.
2947 /// TODO this is likely to change to allow different register types and or to
2948 /// parse for a specific register type.
2950 tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2951 const AsmToken &RegTok = Parser.getTok();
2952 int RegNo = tryParseRegister();
2956 Operands.push_back(ARMOperand::CreateReg(RegNo, RegTok.getLoc(),
2957 RegTok.getEndLoc()));
2959 const AsmToken &ExclaimTok = Parser.getTok();
2960 if (ExclaimTok.is(AsmToken::Exclaim)) {
2961 Operands.push_back(ARMOperand::CreateToken(ExclaimTok.getString(),
2962 ExclaimTok.getLoc()));
2963 Parser.Lex(); // Eat exclaim token
2967 // Also check for an index operand. This is only legal for vector registers,
2968 // but that'll get caught OK in operand matching, so we don't need to
2969 // explicitly filter everything else out here.
2970 if (Parser.getTok().is(AsmToken::LBrac)) {
2971 SMLoc SIdx = Parser.getTok().getLoc();
2972 Parser.Lex(); // Eat left bracket token.
2974 const MCExpr *ImmVal;
2975 if (getParser().parseExpression(ImmVal))
2977 const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(ImmVal);
2979 return TokError("immediate value expected for vector index");
2981 if (Parser.getTok().isNot(AsmToken::RBrac))
2982 return Error(Parser.getTok().getLoc(), "']' expected");
2984 SMLoc E = Parser.getTok().getEndLoc();
2985 Parser.Lex(); // Eat right bracket token.
2987 Operands.push_back(ARMOperand::CreateVectorIndex(MCE->getValue(),
2995 /// MatchCoprocessorOperandName - Try to parse an coprocessor related
2996 /// instruction with a symbolic operand name. Example: "p1", "p7", "c3",
2998 static int MatchCoprocessorOperandName(StringRef Name, char CoprocOp) {
2999 // Use the same layout as the tablegen'erated register name matcher. Ugly,
3001 switch (Name.size()) {
3004 if (Name[0] != CoprocOp)
3020 if (Name[0] != CoprocOp || Name[1] != '1')
3024 // p10 and p11 are invalid for coproc instructions (reserved for FP/NEON)
3025 case '0': return CoprocOp == 'p'? -1: 10;
3026 case '1': return CoprocOp == 'p'? -1: 11;
3027 case '2': return 12;
3028 case '3': return 13;
3029 case '4': return 14;
3030 case '5': return 15;
3035 /// parseITCondCode - Try to parse a condition code for an IT instruction.
3036 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3037 parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3038 SMLoc S = Parser.getTok().getLoc();
3039 const AsmToken &Tok = Parser.getTok();
3040 if (!Tok.is(AsmToken::Identifier))
3041 return MatchOperand_NoMatch;
3042 unsigned CC = StringSwitch<unsigned>(Tok.getString().lower())
3043 .Case("eq", ARMCC::EQ)
3044 .Case("ne", ARMCC::NE)
3045 .Case("hs", ARMCC::HS)
3046 .Case("cs", ARMCC::HS)
3047 .Case("lo", ARMCC::LO)
3048 .Case("cc", ARMCC::LO)
3049 .Case("mi", ARMCC::MI)
3050 .Case("pl", ARMCC::PL)
3051 .Case("vs", ARMCC::VS)
3052 .Case("vc", ARMCC::VC)
3053 .Case("hi", ARMCC::HI)
3054 .Case("ls", ARMCC::LS)
3055 .Case("ge", ARMCC::GE)
3056 .Case("lt", ARMCC::LT)
3057 .Case("gt", ARMCC::GT)
3058 .Case("le", ARMCC::LE)
3059 .Case("al", ARMCC::AL)
3062 return MatchOperand_NoMatch;
3063 Parser.Lex(); // Eat the token.
3065 Operands.push_back(ARMOperand::CreateCondCode(ARMCC::CondCodes(CC), S));
3067 return MatchOperand_Success;
3070 /// parseCoprocNumOperand - Try to parse an coprocessor number operand. The
3071 /// token must be an Identifier when called, and if it is a coprocessor
3072 /// number, the token is eaten and the operand is added to the operand list.
3073 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3074 parseCoprocNumOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3075 SMLoc S = Parser.getTok().getLoc();
3076 const AsmToken &Tok = Parser.getTok();
3077 if (Tok.isNot(AsmToken::Identifier))
3078 return MatchOperand_NoMatch;
3080 int Num = MatchCoprocessorOperandName(Tok.getString(), 'p');
3082 return MatchOperand_NoMatch;
3084 Parser.Lex(); // Eat identifier token.
3085 Operands.push_back(ARMOperand::CreateCoprocNum(Num, S));
3086 return MatchOperand_Success;
3089 /// parseCoprocRegOperand - Try to parse an coprocessor register operand. The
3090 /// token must be an Identifier when called, and if it is a coprocessor
3091 /// number, the token is eaten and the operand is added to the operand list.
3092 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3093 parseCoprocRegOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3094 SMLoc S = Parser.getTok().getLoc();
3095 const AsmToken &Tok = Parser.getTok();
3096 if (Tok.isNot(AsmToken::Identifier))
3097 return MatchOperand_NoMatch;
3099 int Reg = MatchCoprocessorOperandName(Tok.getString(), 'c');
3101 return MatchOperand_NoMatch;
3103 Parser.Lex(); // Eat identifier token.
3104 Operands.push_back(ARMOperand::CreateCoprocReg(Reg, S));
3105 return MatchOperand_Success;
3108 /// parseCoprocOptionOperand - Try to parse an coprocessor option operand.
3109 /// coproc_option : '{' imm0_255 '}'
3110 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3111 parseCoprocOptionOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3112 SMLoc S = Parser.getTok().getLoc();
3114 // If this isn't a '{', this isn't a coprocessor immediate operand.
3115 if (Parser.getTok().isNot(AsmToken::LCurly))
3116 return MatchOperand_NoMatch;
3117 Parser.Lex(); // Eat the '{'
3120 SMLoc Loc = Parser.getTok().getLoc();
3121 if (getParser().parseExpression(Expr)) {
3122 Error(Loc, "illegal expression");
3123 return MatchOperand_ParseFail;
3125 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
3126 if (!CE || CE->getValue() < 0 || CE->getValue() > 255) {
3127 Error(Loc, "coprocessor option must be an immediate in range [0, 255]");
3128 return MatchOperand_ParseFail;
3130 int Val = CE->getValue();
3132 // Check for and consume the closing '}'
3133 if (Parser.getTok().isNot(AsmToken::RCurly))
3134 return MatchOperand_ParseFail;
3135 SMLoc E = Parser.getTok().getEndLoc();
3136 Parser.Lex(); // Eat the '}'
3138 Operands.push_back(ARMOperand::CreateCoprocOption(Val, S, E));
3139 return MatchOperand_Success;
3142 // For register list parsing, we need to map from raw GPR register numbering
3143 // to the enumeration values. The enumeration values aren't sorted by
3144 // register number due to our using "sp", "lr" and "pc" as canonical names.
3145 static unsigned getNextRegister(unsigned Reg) {
3146 // If this is a GPR, we need to do it manually, otherwise we can rely
3147 // on the sort ordering of the enumeration since the other reg-classes
3149 if (!ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3152 default: llvm_unreachable("Invalid GPR number!");
3153 case ARM::R0: return ARM::R1; case ARM::R1: return ARM::R2;
3154 case ARM::R2: return ARM::R3; case ARM::R3: return ARM::R4;
3155 case ARM::R4: return ARM::R5; case ARM::R5: return ARM::R6;
3156 case ARM::R6: return ARM::R7; case ARM::R7: return ARM::R8;
3157 case ARM::R8: return ARM::R9; case ARM::R9: return ARM::R10;
3158 case ARM::R10: return ARM::R11; case ARM::R11: return ARM::R12;
3159 case ARM::R12: return ARM::SP; case ARM::SP: return ARM::LR;
3160 case ARM::LR: return ARM::PC; case ARM::PC: return ARM::R0;
3164 // Return the low-subreg of a given Q register.
3165 static unsigned getDRegFromQReg(unsigned QReg) {
3167 default: llvm_unreachable("expected a Q register!");
3168 case ARM::Q0: return ARM::D0;
3169 case ARM::Q1: return ARM::D2;
3170 case ARM::Q2: return ARM::D4;
3171 case ARM::Q3: return ARM::D6;
3172 case ARM::Q4: return ARM::D8;
3173 case ARM::Q5: return ARM::D10;
3174 case ARM::Q6: return ARM::D12;
3175 case ARM::Q7: return ARM::D14;
3176 case ARM::Q8: return ARM::D16;
3177 case ARM::Q9: return ARM::D18;
3178 case ARM::Q10: return ARM::D20;
3179 case ARM::Q11: return ARM::D22;
3180 case ARM::Q12: return ARM::D24;
3181 case ARM::Q13: return ARM::D26;
3182 case ARM::Q14: return ARM::D28;
3183 case ARM::Q15: return ARM::D30;
3187 /// Parse a register list.
3189 parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3190 assert(Parser.getTok().is(AsmToken::LCurly) &&
3191 "Token is not a Left Curly Brace");
3192 SMLoc S = Parser.getTok().getLoc();
3193 Parser.Lex(); // Eat '{' token.
3194 SMLoc RegLoc = Parser.getTok().getLoc();
3196 // Check the first register in the list to see what register class
3197 // this is a list of.
3198 int Reg = tryParseRegister();
3200 return Error(RegLoc, "register expected");
3202 // The reglist instructions have at most 16 registers, so reserve
3203 // space for that many.
3205 SmallVector<std::pair<unsigned, unsigned>, 16> Registers;
3207 // Allow Q regs and just interpret them as the two D sub-registers.
3208 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3209 Reg = getDRegFromQReg(Reg);
3210 EReg = MRI->getEncodingValue(Reg);
3211 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3214 const MCRegisterClass *RC;
3215 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3216 RC = &ARMMCRegisterClasses[ARM::GPRRegClassID];
3217 else if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg))
3218 RC = &ARMMCRegisterClasses[ARM::DPRRegClassID];
3219 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].contains(Reg))
3220 RC = &ARMMCRegisterClasses[ARM::SPRRegClassID];
3222 return Error(RegLoc, "invalid register in register list");
3224 // Store the register.
3225 EReg = MRI->getEncodingValue(Reg);
3226 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3228 // This starts immediately after the first register token in the list,
3229 // so we can see either a comma or a minus (range separator) as a legal
3231 while (Parser.getTok().is(AsmToken::Comma) ||
3232 Parser.getTok().is(AsmToken::Minus)) {
3233 if (Parser.getTok().is(AsmToken::Minus)) {
3234 Parser.Lex(); // Eat the minus.
3235 SMLoc AfterMinusLoc = Parser.getTok().getLoc();
3236 int EndReg = tryParseRegister();
3238 return Error(AfterMinusLoc, "register expected");
3239 // Allow Q regs and just interpret them as the two D sub-registers.
3240 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3241 EndReg = getDRegFromQReg(EndReg) + 1;
3242 // If the register is the same as the start reg, there's nothing
3246 // The register must be in the same register class as the first.
3247 if (!RC->contains(EndReg))
3248 return Error(AfterMinusLoc, "invalid register in register list");
3249 // Ranges must go from low to high.
3250 if (MRI->getEncodingValue(Reg) > MRI->getEncodingValue(EndReg))
3251 return Error(AfterMinusLoc, "bad range in register list");
3253 // Add all the registers in the range to the register list.
3254 while (Reg != EndReg) {
3255 Reg = getNextRegister(Reg);
3256 EReg = MRI->getEncodingValue(Reg);
3257 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3261 Parser.Lex(); // Eat the comma.
3262 RegLoc = Parser.getTok().getLoc();
3264 const AsmToken RegTok = Parser.getTok();
3265 Reg = tryParseRegister();
3267 return Error(RegLoc, "register expected");
3268 // Allow Q regs and just interpret them as the two D sub-registers.
3269 bool isQReg = false;
3270 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3271 Reg = getDRegFromQReg(Reg);
3274 // The register must be in the same register class as the first.
3275 if (!RC->contains(Reg))
3276 return Error(RegLoc, "invalid register in register list");
3277 // List must be monotonically increasing.
3278 if (MRI->getEncodingValue(Reg) < MRI->getEncodingValue(OldReg)) {
3279 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3280 Warning(RegLoc, "register list not in ascending order");
3282 return Error(RegLoc, "register list not in ascending order");
3284 if (MRI->getEncodingValue(Reg) == MRI->getEncodingValue(OldReg)) {
3285 Warning(RegLoc, "duplicated register (" + RegTok.getString() +
3286 ") in register list");
3289 // VFP register lists must also be contiguous.
3290 if (RC != &ARMMCRegisterClasses[ARM::GPRRegClassID] &&
3292 return Error(RegLoc, "non-contiguous register range");
3293 EReg = MRI->getEncodingValue(Reg);
3294 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3296 EReg = MRI->getEncodingValue(++Reg);
3297 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3301 if (Parser.getTok().isNot(AsmToken::RCurly))
3302 return Error(Parser.getTok().getLoc(), "'}' expected");
3303 SMLoc E = Parser.getTok().getEndLoc();
3304 Parser.Lex(); // Eat '}' token.
3306 // Push the register list operand.
3307 Operands.push_back(ARMOperand::CreateRegList(Registers, S, E));
3309 // The ARM system instruction variants for LDM/STM have a '^' token here.
3310 if (Parser.getTok().is(AsmToken::Caret)) {
3311 Operands.push_back(ARMOperand::CreateToken("^",Parser.getTok().getLoc()));
3312 Parser.Lex(); // Eat '^' token.
3318 // Helper function to parse the lane index for vector lists.
3319 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3320 parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index, SMLoc &EndLoc) {
3321 Index = 0; // Always return a defined index value.
3322 if (Parser.getTok().is(AsmToken::LBrac)) {
3323 Parser.Lex(); // Eat the '['.
3324 if (Parser.getTok().is(AsmToken::RBrac)) {
3325 // "Dn[]" is the 'all lanes' syntax.
3326 LaneKind = AllLanes;
3327 EndLoc = Parser.getTok().getEndLoc();
3328 Parser.Lex(); // Eat the ']'.
3329 return MatchOperand_Success;
3332 // There's an optional '#' token here. Normally there wouldn't be, but
3333 // inline assemble puts one in, and it's friendly to accept that.
3334 if (Parser.getTok().is(AsmToken::Hash))
3335 Parser.Lex(); // Eat '#' or '$'.
3337 const MCExpr *LaneIndex;
3338 SMLoc Loc = Parser.getTok().getLoc();
3339 if (getParser().parseExpression(LaneIndex)) {
3340 Error(Loc, "illegal expression");
3341 return MatchOperand_ParseFail;
3343 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LaneIndex);
3345 Error(Loc, "lane index must be empty or an integer");
3346 return MatchOperand_ParseFail;
3348 if (Parser.getTok().isNot(AsmToken::RBrac)) {
3349 Error(Parser.getTok().getLoc(), "']' expected");
3350 return MatchOperand_ParseFail;
3352 EndLoc = Parser.getTok().getEndLoc();
3353 Parser.Lex(); // Eat the ']'.
3354 int64_t Val = CE->getValue();
3356 // FIXME: Make this range check context sensitive for .8, .16, .32.
3357 if (Val < 0 || Val > 7) {
3358 Error(Parser.getTok().getLoc(), "lane index out of range");
3359 return MatchOperand_ParseFail;
3362 LaneKind = IndexedLane;
3363 return MatchOperand_Success;
3366 return MatchOperand_Success;
3369 // parse a vector register list
3370 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3371 parseVectorList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3372 VectorLaneTy LaneKind;
3374 SMLoc S = Parser.getTok().getLoc();
3375 // As an extension (to match gas), support a plain D register or Q register
3376 // (without encosing curly braces) as a single or double entry list,
3378 if (Parser.getTok().is(AsmToken::Identifier)) {
3379 SMLoc E = Parser.getTok().getEndLoc();
3380 int Reg = tryParseRegister();
3382 return MatchOperand_NoMatch;
3383 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg)) {
3384 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex, E);
3385 if (Res != MatchOperand_Success)
3389 Operands.push_back(ARMOperand::CreateVectorList(Reg, 1, false, S, E));
3392 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 1, false,
3396 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 1,
3401 return MatchOperand_Success;
3403 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3404 Reg = getDRegFromQReg(Reg);
3405 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex, E);
3406 if (Res != MatchOperand_Success)
3410 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3411 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3412 Operands.push_back(ARMOperand::CreateVectorList(Reg, 2, false, S, E));
3415 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3416 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3417 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 2, false,
3421 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 2,
3426 return MatchOperand_Success;
3428 Error(S, "vector register expected");
3429 return MatchOperand_ParseFail;
3432 if (Parser.getTok().isNot(AsmToken::LCurly))
3433 return MatchOperand_NoMatch;
3435 Parser.Lex(); // Eat '{' token.
3436 SMLoc RegLoc = Parser.getTok().getLoc();
3438 int Reg = tryParseRegister();
3440 Error(RegLoc, "register expected");
3441 return MatchOperand_ParseFail;
3445 unsigned FirstReg = Reg;
3446 // The list is of D registers, but we also allow Q regs and just interpret
3447 // them as the two D sub-registers.
3448 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3449 FirstReg = Reg = getDRegFromQReg(Reg);
3450 Spacing = 1; // double-spacing requires explicit D registers, otherwise
3451 // it's ambiguous with four-register single spaced.
3457 if (parseVectorLane(LaneKind, LaneIndex, E) != MatchOperand_Success)
3458 return MatchOperand_ParseFail;
3460 while (Parser.getTok().is(AsmToken::Comma) ||
3461 Parser.getTok().is(AsmToken::Minus)) {
3462 if (Parser.getTok().is(AsmToken::Minus)) {
3464 Spacing = 1; // Register range implies a single spaced list.
3465 else if (Spacing == 2) {
3466 Error(Parser.getTok().getLoc(),
3467 "sequential registers in double spaced list");
3468 return MatchOperand_ParseFail;
3470 Parser.Lex(); // Eat the minus.
3471 SMLoc AfterMinusLoc = Parser.getTok().getLoc();
3472 int EndReg = tryParseRegister();
3474 Error(AfterMinusLoc, "register expected");
3475 return MatchOperand_ParseFail;
3477 // Allow Q regs and just interpret them as the two D sub-registers.
3478 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3479 EndReg = getDRegFromQReg(EndReg) + 1;
3480 // If the register is the same as the start reg, there's nothing
3484 // The register must be in the same register class as the first.
3485 if (!ARMMCRegisterClasses[ARM::DPRRegClassID].contains(EndReg)) {
3486 Error(AfterMinusLoc, "invalid register in register list");
3487 return MatchOperand_ParseFail;
3489 // Ranges must go from low to high.
3491 Error(AfterMinusLoc, "bad range in register list");
3492 return MatchOperand_ParseFail;
3494 // Parse the lane specifier if present.
3495 VectorLaneTy NextLaneKind;
3496 unsigned NextLaneIndex;
3497 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) !=
3498 MatchOperand_Success)
3499 return MatchOperand_ParseFail;
3500 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3501 Error(AfterMinusLoc, "mismatched lane index in register list");
3502 return MatchOperand_ParseFail;
3505 // Add all the registers in the range to the register list.
3506 Count += EndReg - Reg;
3510 Parser.Lex(); // Eat the comma.
3511 RegLoc = Parser.getTok().getLoc();
3513 Reg = tryParseRegister();
3515 Error(RegLoc, "register expected");
3516 return MatchOperand_ParseFail;
3518 // vector register lists must be contiguous.
3519 // It's OK to use the enumeration values directly here rather, as the
3520 // VFP register classes have the enum sorted properly.
3522 // The list is of D registers, but we also allow Q regs and just interpret
3523 // them as the two D sub-registers.
3524 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3526 Spacing = 1; // Register range implies a single spaced list.
3527 else if (Spacing == 2) {
3529 "invalid register in double-spaced list (must be 'D' register')");
3530 return MatchOperand_ParseFail;
3532 Reg = getDRegFromQReg(Reg);
3533 if (Reg != OldReg + 1) {
3534 Error(RegLoc, "non-contiguous register range");
3535 return MatchOperand_ParseFail;
3539 // Parse the lane specifier if present.
3540 VectorLaneTy NextLaneKind;
3541 unsigned NextLaneIndex;
3542 SMLoc LaneLoc = Parser.getTok().getLoc();
3543 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) !=
3544 MatchOperand_Success)
3545 return MatchOperand_ParseFail;
3546 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3547 Error(LaneLoc, "mismatched lane index in register list");
3548 return MatchOperand_ParseFail;
3552 // Normal D register.
3553 // Figure out the register spacing (single or double) of the list if
3554 // we don't know it already.
3556 Spacing = 1 + (Reg == OldReg + 2);
3558 // Just check that it's contiguous and keep going.
3559 if (Reg != OldReg + Spacing) {
3560 Error(RegLoc, "non-contiguous register range");
3561 return MatchOperand_ParseFail;
3564 // Parse the lane specifier if present.
3565 VectorLaneTy NextLaneKind;
3566 unsigned NextLaneIndex;
3567 SMLoc EndLoc = Parser.getTok().getLoc();
3568 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) != MatchOperand_Success)
3569 return MatchOperand_ParseFail;
3570 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3571 Error(EndLoc, "mismatched lane index in register list");
3572 return MatchOperand_ParseFail;
3576 if (Parser.getTok().isNot(AsmToken::RCurly)) {
3577 Error(Parser.getTok().getLoc(), "'}' expected");
3578 return MatchOperand_ParseFail;
3580 E = Parser.getTok().getEndLoc();
3581 Parser.Lex(); // Eat '}' token.
3585 // Two-register operands have been converted to the
3586 // composite register classes.
3588 const MCRegisterClass *RC = (Spacing == 1) ?
3589 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3590 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3591 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3594 Operands.push_back(ARMOperand::CreateVectorList(FirstReg, Count,
3595 (Spacing == 2), S, E));
3598 // Two-register operands have been converted to the
3599 // composite register classes.
3601 const MCRegisterClass *RC = (Spacing == 1) ?
3602 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3603 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3604 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3606 Operands.push_back(ARMOperand::CreateVectorListAllLanes(FirstReg, Count,
3611 Operands.push_back(ARMOperand::CreateVectorListIndexed(FirstReg, Count,
3617 return MatchOperand_Success;
3620 /// parseMemBarrierOptOperand - Try to parse DSB/DMB data barrier options.
3621 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3622 parseMemBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3623 SMLoc S = Parser.getTok().getLoc();
3624 const AsmToken &Tok = Parser.getTok();
3627 if (Tok.is(AsmToken::Identifier)) {
3628 StringRef OptStr = Tok.getString();
3630 Opt = StringSwitch<unsigned>(OptStr.slice(0, OptStr.size()).lower())
3631 .Case("sy", ARM_MB::SY)
3632 .Case("st", ARM_MB::ST)
3633 .Case("ld", ARM_MB::LD)
3634 .Case("sh", ARM_MB::ISH)
3635 .Case("ish", ARM_MB::ISH)
3636 .Case("shst", ARM_MB::ISHST)
3637 .Case("ishst", ARM_MB::ISHST)
3638 .Case("ishld", ARM_MB::ISHLD)
3639 .Case("nsh", ARM_MB::NSH)
3640 .Case("un", ARM_MB::NSH)
3641 .Case("nshst", ARM_MB::NSHST)
3642 .Case("nshld", ARM_MB::NSHLD)
3643 .Case("unst", ARM_MB::NSHST)
3644 .Case("osh", ARM_MB::OSH)
3645 .Case("oshst", ARM_MB::OSHST)
3646 .Case("oshld", ARM_MB::OSHLD)
3649 // ishld, oshld, nshld and ld are only available from ARMv8.
3650 if (!hasV8Ops() && (Opt == ARM_MB::ISHLD || Opt == ARM_MB::OSHLD ||
3651 Opt == ARM_MB::NSHLD || Opt == ARM_MB::LD))
3655 return MatchOperand_NoMatch;
3657 Parser.Lex(); // Eat identifier token.
3658 } else if (Tok.is(AsmToken::Hash) ||
3659 Tok.is(AsmToken::Dollar) ||
3660 Tok.is(AsmToken::Integer)) {
3661 if (Parser.getTok().isNot(AsmToken::Integer))
3662 Parser.Lex(); // Eat '#' or '$'.
3663 SMLoc Loc = Parser.getTok().getLoc();
3665 const MCExpr *MemBarrierID;
3666 if (getParser().parseExpression(MemBarrierID)) {
3667 Error(Loc, "illegal expression");
3668 return MatchOperand_ParseFail;
3671 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(MemBarrierID);
3673 Error(Loc, "constant expression expected");
3674 return MatchOperand_ParseFail;
3677 int Val = CE->getValue();
3679 Error(Loc, "immediate value out of range");
3680 return MatchOperand_ParseFail;
3683 Opt = ARM_MB::RESERVED_0 + Val;
3685 return MatchOperand_ParseFail;
3687 Operands.push_back(ARMOperand::CreateMemBarrierOpt((ARM_MB::MemBOpt)Opt, S));
3688 return MatchOperand_Success;
3691 /// parseInstSyncBarrierOptOperand - Try to parse ISB inst sync barrier options.
3692 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3693 parseInstSyncBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3694 SMLoc S = Parser.getTok().getLoc();
3695 const AsmToken &Tok = Parser.getTok();
3698 if (Tok.is(AsmToken::Identifier)) {
3699 StringRef OptStr = Tok.getString();
3701 if (OptStr.equals_lower("sy"))
3704 return MatchOperand_NoMatch;
3706 Parser.Lex(); // Eat identifier token.
3707 } else if (Tok.is(AsmToken::Hash) ||
3708 Tok.is(AsmToken::Dollar) ||
3709 Tok.is(AsmToken::Integer)) {
3710 if (Parser.getTok().isNot(AsmToken::Integer))
3711 Parser.Lex(); // Eat '#' or '$'.
3712 SMLoc Loc = Parser.getTok().getLoc();
3714 const MCExpr *ISBarrierID;
3715 if (getParser().parseExpression(ISBarrierID)) {
3716 Error(Loc, "illegal expression");
3717 return MatchOperand_ParseFail;
3720 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ISBarrierID);
3722 Error(Loc, "constant expression expected");
3723 return MatchOperand_ParseFail;
3726 int Val = CE->getValue();
3728 Error(Loc, "immediate value out of range");
3729 return MatchOperand_ParseFail;
3732 Opt = ARM_ISB::RESERVED_0 + Val;
3734 return MatchOperand_ParseFail;
3736 Operands.push_back(ARMOperand::CreateInstSyncBarrierOpt(
3737 (ARM_ISB::InstSyncBOpt)Opt, S));
3738 return MatchOperand_Success;
3742 /// parseProcIFlagsOperand - Try to parse iflags from CPS instruction.
3743 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3744 parseProcIFlagsOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3745 SMLoc S = Parser.getTok().getLoc();
3746 const AsmToken &Tok = Parser.getTok();
3747 if (!Tok.is(AsmToken::Identifier))
3748 return MatchOperand_NoMatch;
3749 StringRef IFlagsStr = Tok.getString();
3751 // An iflags string of "none" is interpreted to mean that none of the AIF
3752 // bits are set. Not a terribly useful instruction, but a valid encoding.
3753 unsigned IFlags = 0;
3754 if (IFlagsStr != "none") {
3755 for (int i = 0, e = IFlagsStr.size(); i != e; ++i) {
3756 unsigned Flag = StringSwitch<unsigned>(IFlagsStr.substr(i, 1))
3757 .Case("a", ARM_PROC::A)
3758 .Case("i", ARM_PROC::I)
3759 .Case("f", ARM_PROC::F)
3762 // If some specific iflag is already set, it means that some letter is
3763 // present more than once, this is not acceptable.
3764 if (Flag == ~0U || (IFlags & Flag))
3765 return MatchOperand_NoMatch;
3771 Parser.Lex(); // Eat identifier token.
3772 Operands.push_back(ARMOperand::CreateProcIFlags((ARM_PROC::IFlags)IFlags, S));
3773 return MatchOperand_Success;
3776 /// parseMSRMaskOperand - Try to parse mask flags from MSR instruction.
3777 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3778 parseMSRMaskOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3779 SMLoc S = Parser.getTok().getLoc();
3780 const AsmToken &Tok = Parser.getTok();
3781 if (!Tok.is(AsmToken::Identifier))
3782 return MatchOperand_NoMatch;
3783 StringRef Mask = Tok.getString();
3786 // See ARMv6-M 10.1.1
3787 std::string Name = Mask.lower();
3788 unsigned FlagsVal = StringSwitch<unsigned>(Name)
3789 // Note: in the documentation:
3790 // ARM deprecates using MSR APSR without a _<bits> qualifier as an alias
3791 // for MSR APSR_nzcvq.
3792 // but we do make it an alias here. This is so to get the "mask encoding"
3793 // bits correct on MSR APSR writes.
3795 // FIXME: Note the 0xc00 "mask encoding" bits version of the registers
3796 // should really only be allowed when writing a special register. Note
3797 // they get dropped in the MRS instruction reading a special register as
3798 // the SYSm field is only 8 bits.
3800 // FIXME: the _g and _nzcvqg versions are only allowed if the processor
3801 // includes the DSP extension but that is not checked.
3802 .Case("apsr", 0x800)
3803 .Case("apsr_nzcvq", 0x800)
3804 .Case("apsr_g", 0x400)
3805 .Case("apsr_nzcvqg", 0xc00)
3806 .Case("iapsr", 0x801)
3807 .Case("iapsr_nzcvq", 0x801)
3808 .Case("iapsr_g", 0x401)
3809 .Case("iapsr_nzcvqg", 0xc01)
3810 .Case("eapsr", 0x802)
3811 .Case("eapsr_nzcvq", 0x802)
3812 .Case("eapsr_g", 0x402)
3813 .Case("eapsr_nzcvqg", 0xc02)
3814 .Case("xpsr", 0x803)
3815 .Case("xpsr_nzcvq", 0x803)
3816 .Case("xpsr_g", 0x403)
3817 .Case("xpsr_nzcvqg", 0xc03)
3818 .Case("ipsr", 0x805)
3819 .Case("epsr", 0x806)
3820 .Case("iepsr", 0x807)
3823 .Case("primask", 0x810)
3824 .Case("basepri", 0x811)
3825 .Case("basepri_max", 0x812)
3826 .Case("faultmask", 0x813)
3827 .Case("control", 0x814)
3830 if (FlagsVal == ~0U)
3831 return MatchOperand_NoMatch;
3833 if (!hasV7Ops() && FlagsVal >= 0x811 && FlagsVal <= 0x813)
3834 // basepri, basepri_max and faultmask only valid for V7m.
3835 return MatchOperand_NoMatch;
3837 Parser.Lex(); // Eat identifier token.
3838 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3839 return MatchOperand_Success;
3842 // Split spec_reg from flag, example: CPSR_sxf => "CPSR" and "sxf"
3843 size_t Start = 0, Next = Mask.find('_');
3844 StringRef Flags = "";
3845 std::string SpecReg = Mask.slice(Start, Next).lower();
3846 if (Next != StringRef::npos)
3847 Flags = Mask.slice(Next+1, Mask.size());
3849 // FlagsVal contains the complete mask:
3851 // 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3852 unsigned FlagsVal = 0;
3854 if (SpecReg == "apsr") {
3855 FlagsVal = StringSwitch<unsigned>(Flags)
3856 .Case("nzcvq", 0x8) // same as CPSR_f
3857 .Case("g", 0x4) // same as CPSR_s
3858 .Case("nzcvqg", 0xc) // same as CPSR_fs
3861 if (FlagsVal == ~0U) {
3863 return MatchOperand_NoMatch;
3865 FlagsVal = 8; // No flag
3867 } else if (SpecReg == "cpsr" || SpecReg == "spsr") {
3868 // cpsr_all is an alias for cpsr_fc, as is plain cpsr.
3869 if (Flags == "all" || Flags == "")
3871 for (int i = 0, e = Flags.size(); i != e; ++i) {
3872 unsigned Flag = StringSwitch<unsigned>(Flags.substr(i, 1))
3879 // If some specific flag is already set, it means that some letter is
3880 // present more than once, this is not acceptable.
3881 if (FlagsVal == ~0U || (FlagsVal & Flag))
3882 return MatchOperand_NoMatch;
3885 } else // No match for special register.
3886 return MatchOperand_NoMatch;
3888 // Special register without flags is NOT equivalent to "fc" flags.
3889 // NOTE: This is a divergence from gas' behavior. Uncommenting the following
3890 // two lines would enable gas compatibility at the expense of breaking
3896 // Bit 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3897 if (SpecReg == "spsr")
3900 Parser.Lex(); // Eat identifier token.
3901 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3902 return MatchOperand_Success;
3905 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3906 parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands, StringRef Op,
3907 int Low, int High) {
3908 const AsmToken &Tok = Parser.getTok();
3909 if (Tok.isNot(AsmToken::Identifier)) {
3910 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3911 return MatchOperand_ParseFail;
3913 StringRef ShiftName = Tok.getString();
3914 std::string LowerOp = Op.lower();
3915 std::string UpperOp = Op.upper();
3916 if (ShiftName != LowerOp && ShiftName != UpperOp) {
3917 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3918 return MatchOperand_ParseFail;
3920 Parser.Lex(); // Eat shift type token.
3922 // There must be a '#' and a shift amount.
3923 if (Parser.getTok().isNot(AsmToken::Hash) &&
3924 Parser.getTok().isNot(AsmToken::Dollar)) {
3925 Error(Parser.getTok().getLoc(), "'#' expected");
3926 return MatchOperand_ParseFail;
3928 Parser.Lex(); // Eat hash token.
3930 const MCExpr *ShiftAmount;
3931 SMLoc Loc = Parser.getTok().getLoc();
3933 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
3934 Error(Loc, "illegal expression");
3935 return MatchOperand_ParseFail;
3937 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3939 Error(Loc, "constant expression expected");
3940 return MatchOperand_ParseFail;
3942 int Val = CE->getValue();
3943 if (Val < Low || Val > High) {
3944 Error(Loc, "immediate value out of range");
3945 return MatchOperand_ParseFail;
3948 Operands.push_back(ARMOperand::CreateImm(CE, Loc, EndLoc));
3950 return MatchOperand_Success;
3953 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3954 parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3955 const AsmToken &Tok = Parser.getTok();
3956 SMLoc S = Tok.getLoc();
3957 if (Tok.isNot(AsmToken::Identifier)) {
3958 Error(S, "'be' or 'le' operand expected");
3959 return MatchOperand_ParseFail;
3961 int Val = StringSwitch<int>(Tok.getString().lower())
3965 Parser.Lex(); // Eat the token.
3968 Error(S, "'be' or 'le' operand expected");
3969 return MatchOperand_ParseFail;
3971 Operands.push_back(ARMOperand::CreateImm(MCConstantExpr::Create(Val,
3973 S, Tok.getEndLoc()));
3974 return MatchOperand_Success;
3977 /// parseShifterImm - Parse the shifter immediate operand for SSAT/USAT
3978 /// instructions. Legal values are:
3979 /// lsl #n 'n' in [0,31]
3980 /// asr #n 'n' in [1,32]
3981 /// n == 32 encoded as n == 0.
3982 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3983 parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3984 const AsmToken &Tok = Parser.getTok();
3985 SMLoc S = Tok.getLoc();
3986 if (Tok.isNot(AsmToken::Identifier)) {
3987 Error(S, "shift operator 'asr' or 'lsl' expected");
3988 return MatchOperand_ParseFail;
3990 StringRef ShiftName = Tok.getString();
3992 if (ShiftName == "lsl" || ShiftName == "LSL")
3994 else if (ShiftName == "asr" || ShiftName == "ASR")
3997 Error(S, "shift operator 'asr' or 'lsl' expected");
3998 return MatchOperand_ParseFail;
4000 Parser.Lex(); // Eat the operator.
4002 // A '#' and a shift amount.
4003 if (Parser.getTok().isNot(AsmToken::Hash) &&
4004 Parser.getTok().isNot(AsmToken::Dollar)) {
4005 Error(Parser.getTok().getLoc(), "'#' expected");
4006 return MatchOperand_ParseFail;
4008 Parser.Lex(); // Eat hash token.
4009 SMLoc ExLoc = Parser.getTok().getLoc();
4011 const MCExpr *ShiftAmount;
4013 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
4014 Error(ExLoc, "malformed shift expression");
4015 return MatchOperand_ParseFail;
4017 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
4019 Error(ExLoc, "shift amount must be an immediate");
4020 return MatchOperand_ParseFail;
4023 int64_t Val = CE->getValue();
4025 // Shift amount must be in [1,32]
4026 if (Val < 1 || Val > 32) {
4027 Error(ExLoc, "'asr' shift amount must be in range [1,32]");
4028 return MatchOperand_ParseFail;
4030 // asr #32 encoded as asr #0, but is not allowed in Thumb2 mode.
4031 if (isThumb() && Val == 32) {
4032 Error(ExLoc, "'asr #32' shift amount not allowed in Thumb mode");
4033 return MatchOperand_ParseFail;
4035 if (Val == 32) Val = 0;
4037 // Shift amount must be in [1,32]
4038 if (Val < 0 || Val > 31) {
4039 Error(ExLoc, "'lsr' shift amount must be in range [0,31]");
4040 return MatchOperand_ParseFail;
4044 Operands.push_back(ARMOperand::CreateShifterImm(isASR, Val, S, EndLoc));
4046 return MatchOperand_Success;
4049 /// parseRotImm - Parse the shifter immediate operand for SXTB/UXTB family
4050 /// of instructions. Legal values are:
4051 /// ror #n 'n' in {0, 8, 16, 24}
4052 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4053 parseRotImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4054 const AsmToken &Tok = Parser.getTok();
4055 SMLoc S = Tok.getLoc();
4056 if (Tok.isNot(AsmToken::Identifier))
4057 return MatchOperand_NoMatch;
4058 StringRef ShiftName = Tok.getString();
4059 if (ShiftName != "ror" && ShiftName != "ROR")
4060 return MatchOperand_NoMatch;
4061 Parser.Lex(); // Eat the operator.
4063 // A '#' and a rotate amount.
4064 if (Parser.getTok().isNot(AsmToken::Hash) &&
4065 Parser.getTok().isNot(AsmToken::Dollar)) {
4066 Error(Parser.getTok().getLoc(), "'#' expected");
4067 return MatchOperand_ParseFail;
4069 Parser.Lex(); // Eat hash token.
4070 SMLoc ExLoc = Parser.getTok().getLoc();
4072 const MCExpr *ShiftAmount;
4074 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
4075 Error(ExLoc, "malformed rotate expression");
4076 return MatchOperand_ParseFail;
4078 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
4080 Error(ExLoc, "rotate amount must be an immediate");
4081 return MatchOperand_ParseFail;
4084 int64_t Val = CE->getValue();
4085 // Shift amount must be in {0, 8, 16, 24} (0 is undocumented extension)
4086 // normally, zero is represented in asm by omitting the rotate operand
4088 if (Val != 8 && Val != 16 && Val != 24 && Val != 0) {
4089 Error(ExLoc, "'ror' rotate amount must be 8, 16, or 24");
4090 return MatchOperand_ParseFail;
4093 Operands.push_back(ARMOperand::CreateRotImm(Val, S, EndLoc));
4095 return MatchOperand_Success;
4098 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4099 parseBitfield(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4100 SMLoc S = Parser.getTok().getLoc();
4101 // The bitfield descriptor is really two operands, the LSB and the width.
4102 if (Parser.getTok().isNot(AsmToken::Hash) &&
4103 Parser.getTok().isNot(AsmToken::Dollar)) {
4104 Error(Parser.getTok().getLoc(), "'#' expected");
4105 return MatchOperand_ParseFail;
4107 Parser.Lex(); // Eat hash token.
4109 const MCExpr *LSBExpr;
4110 SMLoc E = Parser.getTok().getLoc();
4111 if (getParser().parseExpression(LSBExpr)) {
4112 Error(E, "malformed immediate expression");
4113 return MatchOperand_ParseFail;
4115 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LSBExpr);
4117 Error(E, "'lsb' operand must be an immediate");
4118 return MatchOperand_ParseFail;
4121 int64_t LSB = CE->getValue();
4122 // The LSB must be in the range [0,31]
4123 if (LSB < 0 || LSB > 31) {
4124 Error(E, "'lsb' operand must be in the range [0,31]");
4125 return MatchOperand_ParseFail;
4127 E = Parser.getTok().getLoc();
4129 // Expect another immediate operand.
4130 if (Parser.getTok().isNot(AsmToken::Comma)) {
4131 Error(Parser.getTok().getLoc(), "too few operands");
4132 return MatchOperand_ParseFail;
4134 Parser.Lex(); // Eat hash token.
4135 if (Parser.getTok().isNot(AsmToken::Hash) &&
4136 Parser.getTok().isNot(AsmToken::Dollar)) {
4137 Error(Parser.getTok().getLoc(), "'#' expected");
4138 return MatchOperand_ParseFail;
4140 Parser.Lex(); // Eat hash token.
4142 const MCExpr *WidthExpr;
4144 if (getParser().parseExpression(WidthExpr, EndLoc)) {
4145 Error(E, "malformed immediate expression");
4146 return MatchOperand_ParseFail;
4148 CE = dyn_cast<MCConstantExpr>(WidthExpr);
4150 Error(E, "'width' operand must be an immediate");
4151 return MatchOperand_ParseFail;
4154 int64_t Width = CE->getValue();
4155 // The LSB must be in the range [1,32-lsb]
4156 if (Width < 1 || Width > 32 - LSB) {
4157 Error(E, "'width' operand must be in the range [1,32-lsb]");
4158 return MatchOperand_ParseFail;
4161 Operands.push_back(ARMOperand::CreateBitfield(LSB, Width, S, EndLoc));
4163 return MatchOperand_Success;
4166 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4167 parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4168 // Check for a post-index addressing register operand. Specifically:
4169 // postidx_reg := '+' register {, shift}
4170 // | '-' register {, shift}
4171 // | register {, shift}
4173 // This method must return MatchOperand_NoMatch without consuming any tokens
4174 // in the case where there is no match, as other alternatives take other
4176 AsmToken Tok = Parser.getTok();
4177 SMLoc S = Tok.getLoc();
4178 bool haveEaten = false;
4180 if (Tok.is(AsmToken::Plus)) {
4181 Parser.Lex(); // Eat the '+' token.
4183 } else if (Tok.is(AsmToken::Minus)) {
4184 Parser.Lex(); // Eat the '-' token.
4189 SMLoc E = Parser.getTok().getEndLoc();
4190 int Reg = tryParseRegister();
4193 return MatchOperand_NoMatch;
4194 Error(Parser.getTok().getLoc(), "register expected");
4195 return MatchOperand_ParseFail;
4198 ARM_AM::ShiftOpc ShiftTy = ARM_AM::no_shift;
4199 unsigned ShiftImm = 0;
4200 if (Parser.getTok().is(AsmToken::Comma)) {
4201 Parser.Lex(); // Eat the ','.
4202 if (parseMemRegOffsetShift(ShiftTy, ShiftImm))
4203 return MatchOperand_ParseFail;
4205 // FIXME: Only approximates end...may include intervening whitespace.
4206 E = Parser.getTok().getLoc();
4209 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ShiftTy,
4212 return MatchOperand_Success;
4215 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4216 parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4217 // Check for a post-index addressing register operand. Specifically:
4218 // am3offset := '+' register
4225 // This method must return MatchOperand_NoMatch without consuming any tokens
4226 // in the case where there is no match, as other alternatives take other
4228 AsmToken Tok = Parser.getTok();
4229 SMLoc S = Tok.getLoc();
4231 // Do immediates first, as we always parse those if we have a '#'.
4232 if (Parser.getTok().is(AsmToken::Hash) ||
4233 Parser.getTok().is(AsmToken::Dollar)) {
4234 Parser.Lex(); // Eat '#' or '$'.
4235 // Explicitly look for a '-', as we need to encode negative zero
4237 bool isNegative = Parser.getTok().is(AsmToken::Minus);
4238 const MCExpr *Offset;
4240 if (getParser().parseExpression(Offset, E))
4241 return MatchOperand_ParseFail;
4242 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4244 Error(S, "constant expression expected");
4245 return MatchOperand_ParseFail;
4247 // Negative zero is encoded as the flag value INT32_MIN.
4248 int32_t Val = CE->getValue();
4249 if (isNegative && Val == 0)
4253 ARMOperand::CreateImm(MCConstantExpr::Create(Val, getContext()), S, E));
4255 return MatchOperand_Success;
4259 bool haveEaten = false;
4261 if (Tok.is(AsmToken::Plus)) {
4262 Parser.Lex(); // Eat the '+' token.
4264 } else if (Tok.is(AsmToken::Minus)) {
4265 Parser.Lex(); // Eat the '-' token.
4270 Tok = Parser.getTok();
4271 int Reg = tryParseRegister();
4274 return MatchOperand_NoMatch;
4275 Error(Tok.getLoc(), "register expected");
4276 return MatchOperand_ParseFail;
4279 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ARM_AM::no_shift,
4280 0, S, Tok.getEndLoc()));
4282 return MatchOperand_Success;
4285 /// Convert parsed operands to MCInst. Needed here because this instruction
4286 /// only has two register operands, but multiplication is commutative so
4287 /// assemblers should accept both "mul rD, rN, rD" and "mul rD, rD, rN".
4289 cvtThumbMultiply(MCInst &Inst,
4290 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4291 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4292 ((ARMOperand*)Operands[1])->addCCOutOperands(Inst, 1);
4293 // If we have a three-operand form, make sure to set Rn to be the operand
4294 // that isn't the same as Rd.
4296 if (Operands.size() == 6 &&
4297 ((ARMOperand*)Operands[4])->getReg() ==
4298 ((ARMOperand*)Operands[3])->getReg())
4300 ((ARMOperand*)Operands[RegOp])->addRegOperands(Inst, 1);
4301 Inst.addOperand(Inst.getOperand(0));
4302 ((ARMOperand*)Operands[2])->addCondCodeOperands(Inst, 2);
4306 cvtThumbBranches(MCInst &Inst,
4307 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4308 int CondOp = -1, ImmOp = -1;
4309 switch(Inst.getOpcode()) {
4311 case ARM::tBcc: CondOp = 1; ImmOp = 2; break;
4314 case ARM::t2Bcc: CondOp = 1; ImmOp = 3; break;
4316 default: llvm_unreachable("Unexpected instruction in cvtThumbBranches");
4318 // first decide whether or not the branch should be conditional
4319 // by looking at it's location relative to an IT block
4321 // inside an IT block we cannot have any conditional branches. any
4322 // such instructions needs to be converted to unconditional form
4323 switch(Inst.getOpcode()) {
4324 case ARM::tBcc: Inst.setOpcode(ARM::tB); break;
4325 case ARM::t2Bcc: Inst.setOpcode(ARM::t2B); break;
4328 // outside IT blocks we can only have unconditional branches with AL
4329 // condition code or conditional branches with non-AL condition code
4330 unsigned Cond = static_cast<ARMOperand*>(Operands[CondOp])->getCondCode();
4331 switch(Inst.getOpcode()) {
4334 Inst.setOpcode(Cond == ARMCC::AL ? ARM::tB : ARM::tBcc);
4338 Inst.setOpcode(Cond == ARMCC::AL ? ARM::t2B : ARM::t2Bcc);
4343 // now decide on encoding size based on branch target range
4344 switch(Inst.getOpcode()) {
4345 // classify tB as either t2B or t1B based on range of immediate operand
4347 ARMOperand* op = static_cast<ARMOperand*>(Operands[ImmOp]);
4348 if(!op->isSignedOffset<11, 1>() && isThumbTwo())
4349 Inst.setOpcode(ARM::t2B);
4352 // classify tBcc as either t2Bcc or t1Bcc based on range of immediate operand
4354 ARMOperand* op = static_cast<ARMOperand*>(Operands[ImmOp]);
4355 if(!op->isSignedOffset<8, 1>() && isThumbTwo())
4356 Inst.setOpcode(ARM::t2Bcc);
4360 ((ARMOperand*)Operands[ImmOp])->addImmOperands(Inst, 1);
4361 ((ARMOperand*)Operands[CondOp])->addCondCodeOperands(Inst, 2);
4364 /// Parse an ARM memory expression, return false if successful else return true
4365 /// or an error. The first token must be a '[' when called.
4367 parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4369 assert(Parser.getTok().is(AsmToken::LBrac) &&
4370 "Token is not a Left Bracket");
4371 S = Parser.getTok().getLoc();
4372 Parser.Lex(); // Eat left bracket token.
4374 const AsmToken &BaseRegTok = Parser.getTok();
4375 int BaseRegNum = tryParseRegister();
4376 if (BaseRegNum == -1)
4377 return Error(BaseRegTok.getLoc(), "register expected");
4379 // The next token must either be a comma, a colon or a closing bracket.
4380 const AsmToken &Tok = Parser.getTok();
4381 if (!Tok.is(AsmToken::Colon) && !Tok.is(AsmToken::Comma) &&
4382 !Tok.is(AsmToken::RBrac))
4383 return Error(Tok.getLoc(), "malformed memory operand");
4385 if (Tok.is(AsmToken::RBrac)) {
4386 E = Tok.getEndLoc();
4387 Parser.Lex(); // Eat right bracket token.
4389 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0, ARM_AM::no_shift,
4390 0, 0, false, S, E));
4392 // If there's a pre-indexing writeback marker, '!', just add it as a token
4393 // operand. It's rather odd, but syntactically valid.
4394 if (Parser.getTok().is(AsmToken::Exclaim)) {
4395 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4396 Parser.Lex(); // Eat the '!'.
4402 assert((Tok.is(AsmToken::Colon) || Tok.is(AsmToken::Comma)) &&
4403 "Lost colon or comma in memory operand?!");
4404 if (Tok.is(AsmToken::Comma)) {
4405 Parser.Lex(); // Eat the comma.
4408 // If we have a ':', it's an alignment specifier.
4409 if (Parser.getTok().is(AsmToken::Colon)) {
4410 Parser.Lex(); // Eat the ':'.
4411 E = Parser.getTok().getLoc();
4414 if (getParser().parseExpression(Expr))
4417 // The expression has to be a constant. Memory references with relocations
4418 // don't come through here, as they use the <label> forms of the relevant
4420 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4422 return Error (E, "constant expression expected");
4425 switch (CE->getValue()) {
4428 "alignment specifier must be 16, 32, 64, 128, or 256 bits");
4429 case 16: Align = 2; break;
4430 case 32: Align = 4; break;
4431 case 64: Align = 8; break;
4432 case 128: Align = 16; break;
4433 case 256: Align = 32; break;
4436 // Now we should have the closing ']'
4437 if (Parser.getTok().isNot(AsmToken::RBrac))
4438 return Error(Parser.getTok().getLoc(), "']' expected");
4439 E = Parser.getTok().getEndLoc();
4440 Parser.Lex(); // Eat right bracket token.
4442 // Don't worry about range checking the value here. That's handled by
4443 // the is*() predicates.
4444 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0,
4445 ARM_AM::no_shift, 0, Align,
4448 // If there's a pre-indexing writeback marker, '!', just add it as a token
4450 if (Parser.getTok().is(AsmToken::Exclaim)) {
4451 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4452 Parser.Lex(); // Eat the '!'.
4458 // If we have a '#', it's an immediate offset, else assume it's a register
4459 // offset. Be friendly and also accept a plain integer (without a leading
4460 // hash) for gas compatibility.
4461 if (Parser.getTok().is(AsmToken::Hash) ||
4462 Parser.getTok().is(AsmToken::Dollar) ||
4463 Parser.getTok().is(AsmToken::Integer)) {
4464 if (Parser.getTok().isNot(AsmToken::Integer))
4465 Parser.Lex(); // Eat '#' or '$'.
4466 E = Parser.getTok().getLoc();
4468 bool isNegative = getParser().getTok().is(AsmToken::Minus);
4469 const MCExpr *Offset;
4470 if (getParser().parseExpression(Offset))
4473 // The expression has to be a constant. Memory references with relocations
4474 // don't come through here, as they use the <label> forms of the relevant
4476 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4478 return Error (E, "constant expression expected");
4480 // If the constant was #-0, represent it as INT32_MIN.
4481 int32_t Val = CE->getValue();
4482 if (isNegative && Val == 0)
4483 CE = MCConstantExpr::Create(INT32_MIN, getContext());
4485 // Now we should have the closing ']'
4486 if (Parser.getTok().isNot(AsmToken::RBrac))
4487 return Error(Parser.getTok().getLoc(), "']' expected");
4488 E = Parser.getTok().getEndLoc();
4489 Parser.Lex(); // Eat right bracket token.
4491 // Don't worry about range checking the value here. That's handled by
4492 // the is*() predicates.
4493 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, CE, 0,
4494 ARM_AM::no_shift, 0, 0,
4497 // If there's a pre-indexing writeback marker, '!', just add it as a token
4499 if (Parser.getTok().is(AsmToken::Exclaim)) {
4500 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4501 Parser.Lex(); // Eat the '!'.
4507 // The register offset is optionally preceded by a '+' or '-'
4508 bool isNegative = false;
4509 if (Parser.getTok().is(AsmToken::Minus)) {
4511 Parser.Lex(); // Eat the '-'.
4512 } else if (Parser.getTok().is(AsmToken::Plus)) {
4514 Parser.Lex(); // Eat the '+'.
4517 E = Parser.getTok().getLoc();
4518 int OffsetRegNum = tryParseRegister();
4519 if (OffsetRegNum == -1)
4520 return Error(E, "register expected");
4522 // If there's a shift operator, handle it.
4523 ARM_AM::ShiftOpc ShiftType = ARM_AM::no_shift;
4524 unsigned ShiftImm = 0;
4525 if (Parser.getTok().is(AsmToken::Comma)) {
4526 Parser.Lex(); // Eat the ','.
4527 if (parseMemRegOffsetShift(ShiftType, ShiftImm))
4531 // Now we should have the closing ']'
4532 if (Parser.getTok().isNot(AsmToken::RBrac))
4533 return Error(Parser.getTok().getLoc(), "']' expected");
4534 E = Parser.getTok().getEndLoc();
4535 Parser.Lex(); // Eat right bracket token.
4537 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, OffsetRegNum,
4538 ShiftType, ShiftImm, 0, isNegative,
4541 // If there's a pre-indexing writeback marker, '!', just add it as a token
4543 if (Parser.getTok().is(AsmToken::Exclaim)) {
4544 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4545 Parser.Lex(); // Eat the '!'.
4551 /// parseMemRegOffsetShift - one of these two:
4552 /// ( lsl | lsr | asr | ror ) , # shift_amount
4554 /// return true if it parses a shift otherwise it returns false.
4555 bool ARMAsmParser::parseMemRegOffsetShift(ARM_AM::ShiftOpc &St,
4557 SMLoc Loc = Parser.getTok().getLoc();
4558 const AsmToken &Tok = Parser.getTok();
4559 if (Tok.isNot(AsmToken::Identifier))
4561 StringRef ShiftName = Tok.getString();
4562 if (ShiftName == "lsl" || ShiftName == "LSL" ||
4563 ShiftName == "asl" || ShiftName == "ASL")
4565 else if (ShiftName == "lsr" || ShiftName == "LSR")
4567 else if (ShiftName == "asr" || ShiftName == "ASR")
4569 else if (ShiftName == "ror" || ShiftName == "ROR")
4571 else if (ShiftName == "rrx" || ShiftName == "RRX")
4574 return Error(Loc, "illegal shift operator");
4575 Parser.Lex(); // Eat shift type token.
4577 // rrx stands alone.
4579 if (St != ARM_AM::rrx) {
4580 Loc = Parser.getTok().getLoc();
4581 // A '#' and a shift amount.
4582 const AsmToken &HashTok = Parser.getTok();
4583 if (HashTok.isNot(AsmToken::Hash) &&
4584 HashTok.isNot(AsmToken::Dollar))
4585 return Error(HashTok.getLoc(), "'#' expected");
4586 Parser.Lex(); // Eat hash token.
4589 if (getParser().parseExpression(Expr))
4591 // Range check the immediate.
4592 // lsl, ror: 0 <= imm <= 31
4593 // lsr, asr: 0 <= imm <= 32
4594 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4596 return Error(Loc, "shift amount must be an immediate");
4597 int64_t Imm = CE->getValue();
4599 ((St == ARM_AM::lsl || St == ARM_AM::ror) && Imm > 31) ||
4600 ((St == ARM_AM::lsr || St == ARM_AM::asr) && Imm > 32))
4601 return Error(Loc, "immediate shift value out of range");
4602 // If <ShiftTy> #0, turn it into a no_shift.
4605 // For consistency, treat lsr #32 and asr #32 as having immediate value 0.
4614 /// parseFPImm - A floating point immediate expression operand.
4615 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4616 parseFPImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4617 // Anything that can accept a floating point constant as an operand
4618 // needs to go through here, as the regular parseExpression is
4621 // This routine still creates a generic Immediate operand, containing
4622 // a bitcast of the 64-bit floating point value. The various operands
4623 // that accept floats can check whether the value is valid for them
4624 // via the standard is*() predicates.
4626 SMLoc S = Parser.getTok().getLoc();
4628 if (Parser.getTok().isNot(AsmToken::Hash) &&
4629 Parser.getTok().isNot(AsmToken::Dollar))
4630 return MatchOperand_NoMatch;
4632 // Disambiguate the VMOV forms that can accept an FP immediate.
4633 // vmov.f32 <sreg>, #imm
4634 // vmov.f64 <dreg>, #imm
4635 // vmov.f32 <dreg>, #imm @ vector f32x2
4636 // vmov.f32 <qreg>, #imm @ vector f32x4
4638 // There are also the NEON VMOV instructions which expect an
4639 // integer constant. Make sure we don't try to parse an FPImm
4641 // vmov.i{8|16|32|64} <dreg|qreg>, #imm
4642 ARMOperand *TyOp = static_cast<ARMOperand*>(Operands[2]);
4643 bool isVmovf = TyOp->isToken() && (TyOp->getToken() == ".f32" ||
4644 TyOp->getToken() == ".f64");
4645 ARMOperand *Mnemonic = static_cast<ARMOperand*>(Operands[0]);
4646 bool isFconst = Mnemonic->isToken() && (Mnemonic->getToken() == "fconstd" ||
4647 Mnemonic->getToken() == "fconsts");
4648 if (!(isVmovf || isFconst))
4649 return MatchOperand_NoMatch;
4651 Parser.Lex(); // Eat '#' or '$'.
4653 // Handle negation, as that still comes through as a separate token.
4654 bool isNegative = false;
4655 if (Parser.getTok().is(AsmToken::Minus)) {
4659 const AsmToken &Tok = Parser.getTok();
4660 SMLoc Loc = Tok.getLoc();
4661 if (Tok.is(AsmToken::Real) && isVmovf) {
4662 APFloat RealVal(APFloat::IEEEsingle, Tok.getString());
4663 uint64_t IntVal = RealVal.bitcastToAPInt().getZExtValue();
4664 // If we had a '-' in front, toggle the sign bit.
4665 IntVal ^= (uint64_t)isNegative << 31;
4666 Parser.Lex(); // Eat the token.
4667 Operands.push_back(ARMOperand::CreateImm(
4668 MCConstantExpr::Create(IntVal, getContext()),
4669 S, Parser.getTok().getLoc()));
4670 return MatchOperand_Success;
4672 // Also handle plain integers. Instructions which allow floating point
4673 // immediates also allow a raw encoded 8-bit value.
4674 if (Tok.is(AsmToken::Integer) && isFconst) {
4675 int64_t Val = Tok.getIntVal();
4676 Parser.Lex(); // Eat the token.
4677 if (Val > 255 || Val < 0) {
4678 Error(Loc, "encoded floating point value out of range");
4679 return MatchOperand_ParseFail;
4681 float RealVal = ARM_AM::getFPImmFloat(Val);
4682 Val = APFloat(RealVal).bitcastToAPInt().getZExtValue();
4684 Operands.push_back(ARMOperand::CreateImm(
4685 MCConstantExpr::Create(Val, getContext()), S,
4686 Parser.getTok().getLoc()));
4687 return MatchOperand_Success;
4690 Error(Loc, "invalid floating point immediate");
4691 return MatchOperand_ParseFail;
4694 /// Parse a arm instruction operand. For now this parses the operand regardless
4695 /// of the mnemonic.
4696 bool ARMAsmParser::parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
4697 StringRef Mnemonic) {
4700 // Check if the current operand has a custom associated parser, if so, try to
4701 // custom parse the operand, or fallback to the general approach.
4702 OperandMatchResultTy ResTy = MatchOperandParserImpl(Operands, Mnemonic);
4703 if (ResTy == MatchOperand_Success)
4705 // If there wasn't a custom match, try the generic matcher below. Otherwise,
4706 // there was a match, but an error occurred, in which case, just return that
4707 // the operand parsing failed.
4708 if (ResTy == MatchOperand_ParseFail)
4711 switch (getLexer().getKind()) {
4713 Error(Parser.getTok().getLoc(), "unexpected token in operand");
4715 case AsmToken::Identifier: {
4716 // If we've seen a branch mnemonic, the next operand must be a label. This
4717 // is true even if the label is a register name. So "br r1" means branch to
4719 bool ExpectLabel = Mnemonic == "b" || Mnemonic == "bl";
4721 if (!tryParseRegisterWithWriteBack(Operands))
4723 int Res = tryParseShiftRegister(Operands);
4724 if (Res == 0) // success
4726 else if (Res == -1) // irrecoverable error
4728 // If this is VMRS, check for the apsr_nzcv operand.
4729 if (Mnemonic == "vmrs" &&
4730 Parser.getTok().getString().equals_lower("apsr_nzcv")) {
4731 S = Parser.getTok().getLoc();
4733 Operands.push_back(ARMOperand::CreateToken("APSR_nzcv", S));
4738 // Fall though for the Identifier case that is not a register or a
4741 case AsmToken::LParen: // parenthesized expressions like (_strcmp-4)
4742 case AsmToken::Integer: // things like 1f and 2b as a branch targets
4743 case AsmToken::String: // quoted label names.
4744 case AsmToken::Dot: { // . as a branch target
4745 // This was not a register so parse other operands that start with an
4746 // identifier (like labels) as expressions and create them as immediates.
4747 const MCExpr *IdVal;
4748 S = Parser.getTok().getLoc();
4749 if (getParser().parseExpression(IdVal))
4751 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4752 Operands.push_back(ARMOperand::CreateImm(IdVal, S, E));
4755 case AsmToken::LBrac:
4756 return parseMemory(Operands);
4757 case AsmToken::LCurly:
4758 return parseRegisterList(Operands);
4759 case AsmToken::Dollar:
4760 case AsmToken::Hash: {
4761 // #42 -> immediate.
4762 S = Parser.getTok().getLoc();
4765 if (Parser.getTok().isNot(AsmToken::Colon)) {
4766 bool isNegative = Parser.getTok().is(AsmToken::Minus);
4767 const MCExpr *ImmVal;
4768 if (getParser().parseExpression(ImmVal))
4770 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ImmVal);
4772 int32_t Val = CE->getValue();
4773 if (isNegative && Val == 0)
4774 ImmVal = MCConstantExpr::Create(INT32_MIN, getContext());
4776 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4777 Operands.push_back(ARMOperand::CreateImm(ImmVal, S, E));
4779 // There can be a trailing '!' on operands that we want as a separate
4780 // '!' Token operand. Handle that here. For example, the compatibility
4781 // alias for 'srsdb sp!, #imm' is 'srsdb #imm!'.
4782 if (Parser.getTok().is(AsmToken::Exclaim)) {
4783 Operands.push_back(ARMOperand::CreateToken(Parser.getTok().getString(),
4784 Parser.getTok().getLoc()));
4785 Parser.Lex(); // Eat exclaim token
4789 // w/ a ':' after the '#', it's just like a plain ':'.
4792 case AsmToken::Colon: {
4793 // ":lower16:" and ":upper16:" expression prefixes
4794 // FIXME: Check it's an expression prefix,
4795 // e.g. (FOO - :lower16:BAR) isn't legal.
4796 ARMMCExpr::VariantKind RefKind;
4797 if (parsePrefix(RefKind))
4800 const MCExpr *SubExprVal;
4801 if (getParser().parseExpression(SubExprVal))
4804 const MCExpr *ExprVal = ARMMCExpr::Create(RefKind, SubExprVal,
4806 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4807 Operands.push_back(ARMOperand::CreateImm(ExprVal, S, E));
4810 case AsmToken::Equal: {
4811 if (Mnemonic != "ldr") // only parse for ldr pseudo (e.g. ldr r0, =val)
4812 return Error(Parser.getTok().getLoc(), "unexpected token in operand");
4814 const MCSection *Section =
4815 getParser().getStreamer().getCurrentSection().first;
4817 Parser.Lex(); // Eat '='
4818 const MCExpr *SubExprVal;
4819 if (getParser().parseExpression(SubExprVal))
4821 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4823 const MCExpr *CPLoc =
4824 getOrCreateConstantPool(Section).addEntry(SubExprVal, getContext());
4825 Operands.push_back(ARMOperand::CreateImm(CPLoc, S, E));
4831 // parsePrefix - Parse ARM 16-bit relocations expression prefix, i.e.
4832 // :lower16: and :upper16:.
4833 bool ARMAsmParser::parsePrefix(ARMMCExpr::VariantKind &RefKind) {
4834 RefKind = ARMMCExpr::VK_ARM_None;
4836 // consume an optional '#' (GNU compatibility)
4837 if (getLexer().is(AsmToken::Hash))
4840 // :lower16: and :upper16: modifiers
4841 assert(getLexer().is(AsmToken::Colon) && "expected a :");
4842 Parser.Lex(); // Eat ':'
4844 if (getLexer().isNot(AsmToken::Identifier)) {
4845 Error(Parser.getTok().getLoc(), "expected prefix identifier in operand");
4849 StringRef IDVal = Parser.getTok().getIdentifier();
4850 if (IDVal == "lower16") {
4851 RefKind = ARMMCExpr::VK_ARM_LO16;
4852 } else if (IDVal == "upper16") {
4853 RefKind = ARMMCExpr::VK_ARM_HI16;
4855 Error(Parser.getTok().getLoc(), "unexpected prefix in operand");
4860 if (getLexer().isNot(AsmToken::Colon)) {
4861 Error(Parser.getTok().getLoc(), "unexpected token after prefix");
4864 Parser.Lex(); // Eat the last ':'
4868 /// \brief Given a mnemonic, split out possible predication code and carry
4869 /// setting letters to form a canonical mnemonic and flags.
4871 // FIXME: Would be nice to autogen this.
4872 // FIXME: This is a bit of a maze of special cases.
4873 StringRef ARMAsmParser::splitMnemonic(StringRef Mnemonic,
4874 unsigned &PredicationCode,
4876 unsigned &ProcessorIMod,
4877 StringRef &ITMask) {
4878 PredicationCode = ARMCC::AL;
4879 CarrySetting = false;
4882 // Ignore some mnemonics we know aren't predicated forms.
4884 // FIXME: Would be nice to autogen this.
4885 if ((Mnemonic == "movs" && isThumb()) ||
4886 Mnemonic == "teq" || Mnemonic == "vceq" || Mnemonic == "svc" ||
4887 Mnemonic == "mls" || Mnemonic == "smmls" || Mnemonic == "vcls" ||
4888 Mnemonic == "vmls" || Mnemonic == "vnmls" || Mnemonic == "vacge" ||
4889 Mnemonic == "vcge" || Mnemonic == "vclt" || Mnemonic == "vacgt" ||
4890 Mnemonic == "vaclt" || Mnemonic == "vacle" || Mnemonic == "hlt" ||
4891 Mnemonic == "vcgt" || Mnemonic == "vcle" || Mnemonic == "smlal" ||
4892 Mnemonic == "umaal" || Mnemonic == "umlal" || Mnemonic == "vabal" ||
4893 Mnemonic == "vmlal" || Mnemonic == "vpadal" || Mnemonic == "vqdmlal" ||
4894 Mnemonic == "fmuls" || Mnemonic == "vmaxnm" || Mnemonic == "vminnm" ||
4895 Mnemonic == "vcvta" || Mnemonic == "vcvtn" || Mnemonic == "vcvtp" ||
4896 Mnemonic == "vcvtm" || Mnemonic == "vrinta" || Mnemonic == "vrintn" ||
4897 Mnemonic == "vrintp" || Mnemonic == "vrintm" || Mnemonic.startswith("vsel"))
4900 // First, split out any predication code. Ignore mnemonics we know aren't
4901 // predicated but do have a carry-set and so weren't caught above.
4902 if (Mnemonic != "adcs" && Mnemonic != "bics" && Mnemonic != "movs" &&
4903 Mnemonic != "muls" && Mnemonic != "smlals" && Mnemonic != "smulls" &&
4904 Mnemonic != "umlals" && Mnemonic != "umulls" && Mnemonic != "lsls" &&
4905 Mnemonic != "sbcs" && Mnemonic != "rscs") {
4906 unsigned CC = StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2))
4907 .Case("eq", ARMCC::EQ)
4908 .Case("ne", ARMCC::NE)
4909 .Case("hs", ARMCC::HS)
4910 .Case("cs", ARMCC::HS)
4911 .Case("lo", ARMCC::LO)
4912 .Case("cc", ARMCC::LO)
4913 .Case("mi", ARMCC::MI)
4914 .Case("pl", ARMCC::PL)
4915 .Case("vs", ARMCC::VS)
4916 .Case("vc", ARMCC::VC)
4917 .Case("hi", ARMCC::HI)
4918 .Case("ls", ARMCC::LS)
4919 .Case("ge", ARMCC::GE)
4920 .Case("lt", ARMCC::LT)
4921 .Case("gt", ARMCC::GT)
4922 .Case("le", ARMCC::LE)
4923 .Case("al", ARMCC::AL)
4926 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 2);
4927 PredicationCode = CC;
4931 // Next, determine if we have a carry setting bit. We explicitly ignore all
4932 // the instructions we know end in 's'.
4933 if (Mnemonic.endswith("s") &&
4934 !(Mnemonic == "cps" || Mnemonic == "mls" ||
4935 Mnemonic == "mrs" || Mnemonic == "smmls" || Mnemonic == "vabs" ||
4936 Mnemonic == "vcls" || Mnemonic == "vmls" || Mnemonic == "vmrs" ||
4937 Mnemonic == "vnmls" || Mnemonic == "vqabs" || Mnemonic == "vrecps" ||
4938 Mnemonic == "vrsqrts" || Mnemonic == "srs" || Mnemonic == "flds" ||
4939 Mnemonic == "fmrs" || Mnemonic == "fsqrts" || Mnemonic == "fsubs" ||
4940 Mnemonic == "fsts" || Mnemonic == "fcpys" || Mnemonic == "fdivs" ||
4941 Mnemonic == "fmuls" || Mnemonic == "fcmps" || Mnemonic == "fcmpzs" ||
4942 Mnemonic == "vfms" || Mnemonic == "vfnms" || Mnemonic == "fconsts" ||
4943 (Mnemonic == "movs" && isThumb()))) {
4944 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1);
4945 CarrySetting = true;
4948 // The "cps" instruction can have a interrupt mode operand which is glued into
4949 // the mnemonic. Check if this is the case, split it and parse the imod op
4950 if (Mnemonic.startswith("cps")) {
4951 // Split out any imod code.
4953 StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2, 2))
4954 .Case("ie", ARM_PROC::IE)
4955 .Case("id", ARM_PROC::ID)
4958 Mnemonic = Mnemonic.slice(0, Mnemonic.size()-2);
4959 ProcessorIMod = IMod;
4963 // The "it" instruction has the condition mask on the end of the mnemonic.
4964 if (Mnemonic.startswith("it")) {
4965 ITMask = Mnemonic.slice(2, Mnemonic.size());
4966 Mnemonic = Mnemonic.slice(0, 2);
4972 /// \brief Given a canonical mnemonic, determine if the instruction ever allows
4973 /// inclusion of carry set or predication code operands.
4975 // FIXME: It would be nice to autogen this.
4977 getMnemonicAcceptInfo(StringRef Mnemonic, StringRef FullInst,
4978 bool &CanAcceptCarrySet, bool &CanAcceptPredicationCode) {
4979 if (Mnemonic == "and" || Mnemonic == "lsl" || Mnemonic == "lsr" ||
4980 Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" ||
4981 Mnemonic == "add" || Mnemonic == "adc" ||
4982 Mnemonic == "mul" || Mnemonic == "bic" || Mnemonic == "asr" ||
4983 Mnemonic == "orr" || Mnemonic == "mvn" ||
4984 Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
4985 Mnemonic == "sbc" || Mnemonic == "eor" || Mnemonic == "neg" ||
4986 Mnemonic == "vfm" || Mnemonic == "vfnm" ||
4987 (!isThumb() && (Mnemonic == "smull" || Mnemonic == "mov" ||
4988 Mnemonic == "mla" || Mnemonic == "smlal" ||
4989 Mnemonic == "umlal" || Mnemonic == "umull"))) {
4990 CanAcceptCarrySet = true;
4992 CanAcceptCarrySet = false;
4994 if (Mnemonic == "bkpt" || Mnemonic == "cbnz" || Mnemonic == "setend" ||
4995 Mnemonic == "cps" || Mnemonic == "it" || Mnemonic == "cbz" ||
4996 Mnemonic == "trap" || Mnemonic == "hlt" || Mnemonic.startswith("crc32") ||
4997 Mnemonic.startswith("cps") || Mnemonic.startswith("vsel") ||
4998 Mnemonic == "vmaxnm" || Mnemonic == "vminnm" || Mnemonic == "vcvta" ||
4999 Mnemonic == "vcvtn" || Mnemonic == "vcvtp" || Mnemonic == "vcvtm" ||
5000 Mnemonic == "vrinta" || Mnemonic == "vrintn" || Mnemonic == "vrintp" ||
5001 Mnemonic == "vrintm" || Mnemonic.startswith("aes") ||
5002 Mnemonic.startswith("sha1") || Mnemonic.startswith("sha256") ||
5003 (FullInst.startswith("vmull") && FullInst.endswith(".p64"))) {
5004 // These mnemonics are never predicable
5005 CanAcceptPredicationCode = false;
5006 } else if (!isThumb()) {
5007 // Some instructions are only predicable in Thumb mode
5008 CanAcceptPredicationCode
5009 = Mnemonic != "cdp2" && Mnemonic != "clrex" && Mnemonic != "mcr2" &&
5010 Mnemonic != "mcrr2" && Mnemonic != "mrc2" && Mnemonic != "mrrc2" &&
5011 Mnemonic != "dmb" && Mnemonic != "dsb" && Mnemonic != "isb" &&
5012 Mnemonic != "pld" && Mnemonic != "pli" && Mnemonic != "pldw" &&
5013 Mnemonic != "ldc2" && Mnemonic != "ldc2l" &&
5014 Mnemonic != "stc2" && Mnemonic != "stc2l" &&
5015 !Mnemonic.startswith("rfe") && !Mnemonic.startswith("srs");
5016 } else if (isThumbOne()) {
5018 CanAcceptPredicationCode = Mnemonic != "movs";
5020 CanAcceptPredicationCode = Mnemonic != "nop" && Mnemonic != "movs";
5022 CanAcceptPredicationCode = true;
5025 bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
5026 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5027 // FIXME: This is all horribly hacky. We really need a better way to deal
5028 // with optional operands like this in the matcher table.
5030 // The 'mov' mnemonic is special. One variant has a cc_out operand, while
5031 // another does not. Specifically, the MOVW instruction does not. So we
5032 // special case it here and remove the defaulted (non-setting) cc_out
5033 // operand if that's the instruction we're trying to match.
5035 // We do this as post-processing of the explicit operands rather than just
5036 // conditionally adding the cc_out in the first place because we need
5037 // to check the type of the parsed immediate operand.
5038 if (Mnemonic == "mov" && Operands.size() > 4 && !isThumb() &&
5039 !static_cast<ARMOperand*>(Operands[4])->isARMSOImm() &&
5040 static_cast<ARMOperand*>(Operands[4])->isImm0_65535Expr() &&
5041 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
5044 // Register-register 'add' for thumb does not have a cc_out operand
5045 // when there are only two register operands.
5046 if (isThumb() && Mnemonic == "add" && Operands.size() == 5 &&
5047 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5048 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5049 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
5051 // Register-register 'add' for thumb does not have a cc_out operand
5052 // when it's an ADD Rdm, SP, {Rdm|#imm0_255} instruction. We do
5053 // have to check the immediate range here since Thumb2 has a variant
5054 // that can handle a different range and has a cc_out operand.
5055 if (((isThumb() && Mnemonic == "add") ||
5056 (isThumbTwo() && Mnemonic == "sub")) &&
5057 Operands.size() == 6 &&
5058 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5059 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5060 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::SP &&
5061 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5062 ((Mnemonic == "add" &&static_cast<ARMOperand*>(Operands[5])->isReg()) ||
5063 static_cast<ARMOperand*>(Operands[5])->isImm0_1020s4()))
5065 // For Thumb2, add/sub immediate does not have a cc_out operand for the
5066 // imm0_4095 variant. That's the least-preferred variant when
5067 // selecting via the generic "add" mnemonic, so to know that we
5068 // should remove the cc_out operand, we have to explicitly check that
5069 // it's not one of the other variants. Ugh.
5070 if (isThumbTwo() && (Mnemonic == "add" || Mnemonic == "sub") &&
5071 Operands.size() == 6 &&
5072 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5073 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5074 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5075 // Nest conditions rather than one big 'if' statement for readability.
5077 // If both registers are low, we're in an IT block, and the immediate is
5078 // in range, we should use encoding T1 instead, which has a cc_out.
5080 isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
5081 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) &&
5082 static_cast<ARMOperand*>(Operands[5])->isImm0_7())
5084 // Check against T3. If the second register is the PC, this is an
5085 // alternate form of ADR, which uses encoding T4, so check for that too.
5086 if (static_cast<ARMOperand*>(Operands[4])->getReg() != ARM::PC &&
5087 static_cast<ARMOperand*>(Operands[5])->isT2SOImm())
5090 // Otherwise, we use encoding T4, which does not have a cc_out
5095 // The thumb2 multiply instruction doesn't have a CCOut register, so
5096 // if we have a "mul" mnemonic in Thumb mode, check if we'll be able to
5097 // use the 16-bit encoding or not.
5098 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 6 &&
5099 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5100 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5101 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5102 static_cast<ARMOperand*>(Operands[5])->isReg() &&
5103 // If the registers aren't low regs, the destination reg isn't the
5104 // same as one of the source regs, or the cc_out operand is zero
5105 // outside of an IT block, we have to use the 32-bit encoding, so
5106 // remove the cc_out operand.
5107 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
5108 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
5109 !isARMLowRegister(static_cast<ARMOperand*>(Operands[5])->getReg()) ||
5111 (static_cast<ARMOperand*>(Operands[3])->getReg() !=
5112 static_cast<ARMOperand*>(Operands[5])->getReg() &&
5113 static_cast<ARMOperand*>(Operands[3])->getReg() !=
5114 static_cast<ARMOperand*>(Operands[4])->getReg())))
5117 // Also check the 'mul' syntax variant that doesn't specify an explicit
5118 // destination register.
5119 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 5 &&
5120 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5121 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5122 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5123 // If the registers aren't low regs or the cc_out operand is zero
5124 // outside of an IT block, we have to use the 32-bit encoding, so
5125 // remove the cc_out operand.
5126 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
5127 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
5133 // Register-register 'add/sub' for thumb does not have a cc_out operand
5134 // when it's an ADD/SUB SP, #imm. Be lenient on count since there's also
5135 // the "add/sub SP, SP, #imm" version. If the follow-up operands aren't
5136 // right, this will result in better diagnostics (which operand is off)
5138 if (isThumb() && (Mnemonic == "add" || Mnemonic == "sub") &&
5139 (Operands.size() == 5 || Operands.size() == 6) &&
5140 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5141 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::SP &&
5142 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5143 (static_cast<ARMOperand*>(Operands[4])->isImm() ||
5144 (Operands.size() == 6 &&
5145 static_cast<ARMOperand*>(Operands[5])->isImm())))
5151 bool ARMAsmParser::shouldOmitPredicateOperand(
5152 StringRef Mnemonic, SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
5153 // VRINT{Z, R, X} have a predicate operand in VFP, but not in NEON
5154 unsigned RegIdx = 3;
5155 if ((Mnemonic == "vrintz" || Mnemonic == "vrintx" || Mnemonic == "vrintr") &&
5156 static_cast<ARMOperand *>(Operands[2])->getToken() == ".f32") {
5157 if (static_cast<ARMOperand *>(Operands[3])->isToken() &&
5158 static_cast<ARMOperand *>(Operands[3])->getToken() == ".f32")
5161 if (static_cast<ARMOperand *>(Operands[RegIdx])->isReg() &&
5162 (ARMMCRegisterClasses[ARM::DPRRegClassID]
5163 .contains(static_cast<ARMOperand *>(Operands[RegIdx])->getReg()) ||
5164 ARMMCRegisterClasses[ARM::QPRRegClassID]
5165 .contains(static_cast<ARMOperand *>(Operands[RegIdx])->getReg())))
5171 static bool isDataTypeToken(StringRef Tok) {
5172 return Tok == ".8" || Tok == ".16" || Tok == ".32" || Tok == ".64" ||
5173 Tok == ".i8" || Tok == ".i16" || Tok == ".i32" || Tok == ".i64" ||
5174 Tok == ".u8" || Tok == ".u16" || Tok == ".u32" || Tok == ".u64" ||
5175 Tok == ".s8" || Tok == ".s16" || Tok == ".s32" || Tok == ".s64" ||
5176 Tok == ".p8" || Tok == ".p16" || Tok == ".f32" || Tok == ".f64" ||
5177 Tok == ".f" || Tok == ".d";
5180 // FIXME: This bit should probably be handled via an explicit match class
5181 // in the .td files that matches the suffix instead of having it be
5182 // a literal string token the way it is now.
5183 static bool doesIgnoreDataTypeSuffix(StringRef Mnemonic, StringRef DT) {
5184 return Mnemonic.startswith("vldm") || Mnemonic.startswith("vstm");
5186 static void applyMnemonicAliases(StringRef &Mnemonic, unsigned Features,
5187 unsigned VariantID);
5189 static bool RequiresVFPRegListValidation(StringRef Inst,
5190 bool &AcceptSinglePrecisionOnly,
5191 bool &AcceptDoublePrecisionOnly) {
5192 if (Inst.size() < 7)
5195 if (Inst.startswith("fldm") || Inst.startswith("fstm")) {
5196 StringRef AddressingMode = Inst.substr(4, 2);
5197 if (AddressingMode == "ia" || AddressingMode == "db" ||
5198 AddressingMode == "ea" || AddressingMode == "fd") {
5199 AcceptSinglePrecisionOnly = Inst[6] == 's';
5200 AcceptDoublePrecisionOnly = Inst[6] == 'd' || Inst[6] == 'x';
5208 /// Parse an arm instruction mnemonic followed by its operands.
5209 bool ARMAsmParser::ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
5211 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5212 // FIXME: Can this be done via tablegen in some fashion?
5213 bool RequireVFPRegisterListCheck;
5214 bool AcceptSinglePrecisionOnly;
5215 bool AcceptDoublePrecisionOnly;
5216 RequireVFPRegisterListCheck =
5217 RequiresVFPRegListValidation(Name, AcceptSinglePrecisionOnly,
5218 AcceptDoublePrecisionOnly);
5220 // Apply mnemonic aliases before doing anything else, as the destination
5221 // mnemonic may include suffices and we want to handle them normally.
5222 // The generic tblgen'erated code does this later, at the start of
5223 // MatchInstructionImpl(), but that's too late for aliases that include
5224 // any sort of suffix.
5225 unsigned AvailableFeatures = getAvailableFeatures();
5226 unsigned AssemblerDialect = getParser().getAssemblerDialect();
5227 applyMnemonicAliases(Name, AvailableFeatures, AssemblerDialect);
5229 // First check for the ARM-specific .req directive.
5230 if (Parser.getTok().is(AsmToken::Identifier) &&
5231 Parser.getTok().getIdentifier() == ".req") {
5232 parseDirectiveReq(Name, NameLoc);
5233 // We always return 'error' for this, as we're done with this
5234 // statement and don't need to match the 'instruction."
5238 // Create the leading tokens for the mnemonic, split by '.' characters.
5239 size_t Start = 0, Next = Name.find('.');
5240 StringRef Mnemonic = Name.slice(Start, Next);
5242 // Split out the predication code and carry setting flag from the mnemonic.
5243 unsigned PredicationCode;
5244 unsigned ProcessorIMod;
5247 Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
5248 ProcessorIMod, ITMask);
5250 // In Thumb1, only the branch (B) instruction can be predicated.
5251 if (isThumbOne() && PredicationCode != ARMCC::AL && Mnemonic != "b") {
5252 Parser.eatToEndOfStatement();
5253 return Error(NameLoc, "conditional execution not supported in Thumb1");
5256 Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
5258 // Handle the IT instruction ITMask. Convert it to a bitmask. This
5259 // is the mask as it will be for the IT encoding if the conditional
5260 // encoding has a '1' as it's bit0 (i.e. 't' ==> '1'). In the case
5261 // where the conditional bit0 is zero, the instruction post-processing
5262 // will adjust the mask accordingly.
5263 if (Mnemonic == "it") {
5264 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + 2);
5265 if (ITMask.size() > 3) {
5266 Parser.eatToEndOfStatement();
5267 return Error(Loc, "too many conditions on IT instruction");
5270 for (unsigned i = ITMask.size(); i != 0; --i) {
5271 char pos = ITMask[i - 1];
5272 if (pos != 't' && pos != 'e') {
5273 Parser.eatToEndOfStatement();
5274 return Error(Loc, "illegal IT block condition mask '" + ITMask + "'");
5277 if (ITMask[i - 1] == 't')
5280 Operands.push_back(ARMOperand::CreateITMask(Mask, Loc));
5283 // FIXME: This is all a pretty gross hack. We should automatically handle
5284 // optional operands like this via tblgen.
5286 // Next, add the CCOut and ConditionCode operands, if needed.
5288 // For mnemonics which can ever incorporate a carry setting bit or predication
5289 // code, our matching model involves us always generating CCOut and
5290 // ConditionCode operands to match the mnemonic "as written" and then we let
5291 // the matcher deal with finding the right instruction or generating an
5292 // appropriate error.
5293 bool CanAcceptCarrySet, CanAcceptPredicationCode;
5294 getMnemonicAcceptInfo(Mnemonic, Name, CanAcceptCarrySet, CanAcceptPredicationCode);
5296 // If we had a carry-set on an instruction that can't do that, issue an
5298 if (!CanAcceptCarrySet && CarrySetting) {
5299 Parser.eatToEndOfStatement();
5300 return Error(NameLoc, "instruction '" + Mnemonic +
5301 "' can not set flags, but 's' suffix specified");
5303 // If we had a predication code on an instruction that can't do that, issue an
5305 if (!CanAcceptPredicationCode && PredicationCode != ARMCC::AL) {
5306 Parser.eatToEndOfStatement();
5307 return Error(NameLoc, "instruction '" + Mnemonic +
5308 "' is not predicable, but condition code specified");
5311 // Add the carry setting operand, if necessary.
5312 if (CanAcceptCarrySet) {
5313 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size());
5314 Operands.push_back(ARMOperand::CreateCCOut(CarrySetting ? ARM::CPSR : 0,
5318 // Add the predication code operand, if necessary.
5319 if (CanAcceptPredicationCode) {
5320 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size() +
5322 Operands.push_back(ARMOperand::CreateCondCode(
5323 ARMCC::CondCodes(PredicationCode), Loc));
5326 // Add the processor imod operand, if necessary.
5327 if (ProcessorIMod) {
5328 Operands.push_back(ARMOperand::CreateImm(
5329 MCConstantExpr::Create(ProcessorIMod, getContext()),
5333 // Add the remaining tokens in the mnemonic.
5334 while (Next != StringRef::npos) {
5336 Next = Name.find('.', Start + 1);
5337 StringRef ExtraToken = Name.slice(Start, Next);
5339 // Some NEON instructions have an optional datatype suffix that is
5340 // completely ignored. Check for that.
5341 if (isDataTypeToken(ExtraToken) &&
5342 doesIgnoreDataTypeSuffix(Mnemonic, ExtraToken))
5345 // For for ARM mode generate an error if the .n qualifier is used.
5346 if (ExtraToken == ".n" && !isThumb()) {
5347 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5348 Parser.eatToEndOfStatement();
5349 return Error(Loc, "instruction with .n (narrow) qualifier not allowed in "
5353 // The .n qualifier is always discarded as that is what the tables
5354 // and matcher expect. In ARM mode the .w qualifier has no effect,
5355 // so discard it to avoid errors that can be caused by the matcher.
5356 if (ExtraToken != ".n" && (isThumb() || ExtraToken != ".w")) {
5357 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5358 Operands.push_back(ARMOperand::CreateToken(ExtraToken, Loc));
5362 // Read the remaining operands.
5363 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5364 // Read the first operand.
5365 if (parseOperand(Operands, Mnemonic)) {
5366 Parser.eatToEndOfStatement();
5370 while (getLexer().is(AsmToken::Comma)) {
5371 Parser.Lex(); // Eat the comma.
5373 // Parse and remember the operand.
5374 if (parseOperand(Operands, Mnemonic)) {
5375 Parser.eatToEndOfStatement();
5381 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5382 SMLoc Loc = getLexer().getLoc();
5383 Parser.eatToEndOfStatement();
5384 return Error(Loc, "unexpected token in argument list");
5387 Parser.Lex(); // Consume the EndOfStatement
5389 if (RequireVFPRegisterListCheck) {
5390 ARMOperand *Op = static_cast<ARMOperand*>(Operands.back());
5391 if (AcceptSinglePrecisionOnly && !Op->isSPRRegList())
5392 return Error(Op->getStartLoc(),
5393 "VFP/Neon single precision register expected");
5394 if (AcceptDoublePrecisionOnly && !Op->isDPRRegList())
5395 return Error(Op->getStartLoc(),
5396 "VFP/Neon double precision register expected");
5399 // Some instructions, mostly Thumb, have forms for the same mnemonic that
5400 // do and don't have a cc_out optional-def operand. With some spot-checks
5401 // of the operand list, we can figure out which variant we're trying to
5402 // parse and adjust accordingly before actually matching. We shouldn't ever
5403 // try to remove a cc_out operand that was explicitly set on the the
5404 // mnemonic, of course (CarrySetting == true). Reason number #317 the
5405 // table driven matcher doesn't fit well with the ARM instruction set.
5406 if (!CarrySetting && shouldOmitCCOutOperand(Mnemonic, Operands)) {
5407 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5408 Operands.erase(Operands.begin() + 1);
5412 // Some instructions have the same mnemonic, but don't always
5413 // have a predicate. Distinguish them here and delete the
5414 // predicate if needed.
5415 if (shouldOmitPredicateOperand(Mnemonic, Operands)) {
5416 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5417 Operands.erase(Operands.begin() + 1);
5421 // ARM mode 'blx' need special handling, as the register operand version
5422 // is predicable, but the label operand version is not. So, we can't rely
5423 // on the Mnemonic based checking to correctly figure out when to put
5424 // a k_CondCode operand in the list. If we're trying to match the label
5425 // version, remove the k_CondCode operand here.
5426 if (!isThumb() && Mnemonic == "blx" && Operands.size() == 3 &&
5427 static_cast<ARMOperand*>(Operands[2])->isImm()) {
5428 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5429 Operands.erase(Operands.begin() + 1);
5433 // Adjust operands of ldrexd/strexd to MCK_GPRPair.
5434 // ldrexd/strexd require even/odd GPR pair. To enforce this constraint,
5435 // a single GPRPair reg operand is used in the .td file to replace the two
5436 // GPRs. However, when parsing from asm, the two GRPs cannot be automatically
5437 // expressed as a GPRPair, so we have to manually merge them.
5438 // FIXME: We would really like to be able to tablegen'erate this.
5439 if (!isThumb() && Operands.size() > 4 &&
5440 (Mnemonic == "ldrexd" || Mnemonic == "strexd" || Mnemonic == "ldaexd" ||
5441 Mnemonic == "stlexd")) {
5442 bool isLoad = (Mnemonic == "ldrexd" || Mnemonic == "ldaexd");
5443 unsigned Idx = isLoad ? 2 : 3;
5444 ARMOperand* Op1 = static_cast<ARMOperand*>(Operands[Idx]);
5445 ARMOperand* Op2 = static_cast<ARMOperand*>(Operands[Idx+1]);
5447 const MCRegisterClass& MRC = MRI->getRegClass(ARM::GPRRegClassID);
5448 // Adjust only if Op1 and Op2 are GPRs.
5449 if (Op1->isReg() && Op2->isReg() && MRC.contains(Op1->getReg()) &&
5450 MRC.contains(Op2->getReg())) {
5451 unsigned Reg1 = Op1->getReg();
5452 unsigned Reg2 = Op2->getReg();
5453 unsigned Rt = MRI->getEncodingValue(Reg1);
5454 unsigned Rt2 = MRI->getEncodingValue(Reg2);
5456 // Rt2 must be Rt + 1 and Rt must be even.
5457 if (Rt + 1 != Rt2 || (Rt & 1)) {
5458 Error(Op2->getStartLoc(), isLoad ?
5459 "destination operands must be sequential" :
5460 "source operands must be sequential");
5463 unsigned NewReg = MRI->getMatchingSuperReg(Reg1, ARM::gsub_0,
5464 &(MRI->getRegClass(ARM::GPRPairRegClassID)));
5465 Operands.erase(Operands.begin() + Idx, Operands.begin() + Idx + 2);
5466 Operands.insert(Operands.begin() + Idx, ARMOperand::CreateReg(
5467 NewReg, Op1->getStartLoc(), Op2->getEndLoc()));
5473 // GNU Assembler extension (compatibility)
5474 if ((Mnemonic == "ldrd" || Mnemonic == "strd") && !isThumb() &&
5475 Operands.size() == 4) {
5476 ARMOperand *Op = static_cast<ARMOperand *>(Operands[2]);
5477 assert(Op->isReg() && "expected register argument");
5478 assert(MRI->getMatchingSuperReg(Op->getReg(), ARM::gsub_0,
5479 &MRI->getRegClass(ARM::GPRPairRegClassID))
5480 && "expected register pair");
5481 Operands.insert(Operands.begin() + 3,
5482 ARMOperand::CreateReg(Op->getReg() + 1, Op->getStartLoc(),
5486 // FIXME: As said above, this is all a pretty gross hack. This instruction
5487 // does not fit with other "subs" and tblgen.
5488 // Adjust operands of B9.3.19 SUBS PC, LR, #imm (Thumb2) system instruction
5489 // so the Mnemonic is the original name "subs" and delete the predicate
5490 // operand so it will match the table entry.
5491 if (isThumbTwo() && Mnemonic == "sub" && Operands.size() == 6 &&
5492 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5493 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::PC &&
5494 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5495 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::LR &&
5496 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5497 ARMOperand *Op0 = static_cast<ARMOperand*>(Operands[0]);
5498 Operands.erase(Operands.begin());
5500 Operands.insert(Operands.begin(), ARMOperand::CreateToken(Name, NameLoc));
5502 ARMOperand *Op1 = static_cast<ARMOperand*>(Operands[1]);
5503 Operands.erase(Operands.begin() + 1);
5509 // Validate context-sensitive operand constraints.
5511 // return 'true' if register list contains non-low GPR registers,
5512 // 'false' otherwise. If Reg is in the register list or is HiReg, set
5513 // 'containsReg' to true.
5514 static bool checkLowRegisterList(MCInst Inst, unsigned OpNo, unsigned Reg,
5515 unsigned HiReg, bool &containsReg) {
5516 containsReg = false;
5517 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5518 unsigned OpReg = Inst.getOperand(i).getReg();
5521 // Anything other than a low register isn't legal here.
5522 if (!isARMLowRegister(OpReg) && (!HiReg || OpReg != HiReg))
5528 // Check if the specified regisgter is in the register list of the inst,
5529 // starting at the indicated operand number.
5530 static bool listContainsReg(MCInst &Inst, unsigned OpNo, unsigned Reg) {
5531 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5532 unsigned OpReg = Inst.getOperand(i).getReg();
5539 // Return true if instruction has the interesting property of being
5540 // allowed in IT blocks, but not being predicable.
5541 static bool instIsBreakpoint(const MCInst &Inst) {
5542 return Inst.getOpcode() == ARM::tBKPT ||
5543 Inst.getOpcode() == ARM::BKPT ||
5544 Inst.getOpcode() == ARM::tHLT ||
5545 Inst.getOpcode() == ARM::HLT;
5549 // FIXME: We would really like to be able to tablegen'erate this.
5551 validateInstruction(MCInst &Inst,
5552 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5553 const MCInstrDesc &MCID = MII.get(Inst.getOpcode());
5554 SMLoc Loc = Operands[0]->getStartLoc();
5556 // Check the IT block state first.
5557 // NOTE: BKPT and HLT instructions have the interesting property of being
5558 // allowed in IT blocks, but not being predicable. They just always execute.
5559 if (inITBlock() && !instIsBreakpoint(Inst)) {
5561 if (ITState.FirstCond)
5562 ITState.FirstCond = false;
5564 Bit = (ITState.Mask >> (5 - ITState.CurPosition)) & 1;
5565 // The instruction must be predicable.
5566 if (!MCID.isPredicable())
5567 return Error(Loc, "instructions in IT block must be predicable");
5568 unsigned Cond = Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm();
5569 unsigned ITCond = Bit ? ITState.Cond :
5570 ARMCC::getOppositeCondition(ITState.Cond);
5571 if (Cond != ITCond) {
5572 // Find the condition code Operand to get its SMLoc information.
5574 for (unsigned I = 1; I < Operands.size(); ++I)
5575 if (static_cast<ARMOperand*>(Operands[I])->isCondCode())
5576 CondLoc = Operands[I]->getStartLoc();
5577 return Error(CondLoc, "incorrect condition in IT block; got '" +
5578 StringRef(ARMCondCodeToString(ARMCC::CondCodes(Cond))) +
5579 "', but expected '" +
5580 ARMCondCodeToString(ARMCC::CondCodes(ITCond)) + "'");
5582 // Check for non-'al' condition codes outside of the IT block.
5583 } else if (isThumbTwo() && MCID.isPredicable() &&
5584 Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm() !=
5585 ARMCC::AL && Inst.getOpcode() != ARM::tBcc &&
5586 Inst.getOpcode() != ARM::t2Bcc)
5587 return Error(Loc, "predicated instructions must be in IT block");
5589 const unsigned Opcode = Inst.getOpcode();
5593 case ARM::LDRD_POST: {
5594 const unsigned RtReg = Inst.getOperand(0).getReg();
5597 if (RtReg == ARM::LR)
5598 return Error(Operands[3]->getStartLoc(),
5601 const unsigned Rt = MRI->getEncodingValue(RtReg);
5602 // Rt must be even-numbered.
5604 return Error(Operands[3]->getStartLoc(),
5605 "Rt must be even-numbered");
5607 // Rt2 must be Rt + 1.
5608 const unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5610 return Error(Operands[3]->getStartLoc(),
5611 "destination operands must be sequential");
5613 if (Opcode == ARM::LDRD_PRE || Opcode == ARM::LDRD_POST) {
5614 const unsigned Rn = MRI->getEncodingValue(Inst.getOperand(3).getReg());
5615 // For addressing modes with writeback, the base register needs to be
5616 // different from the destination registers.
5617 if (Rn == Rt || Rn == Rt2)
5618 return Error(Operands[3]->getStartLoc(),
5619 "base register needs to be different from destination "
5626 case ARM::t2LDRD_PRE:
5627 case ARM::t2LDRD_POST: {
5628 // Rt2 must be different from Rt.
5629 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(0).getReg());
5630 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5632 return Error(Operands[3]->getStartLoc(),
5633 "destination operands can't be identical");
5637 // Rt2 must be Rt + 1.
5638 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(0).getReg());
5639 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5641 return Error(Operands[3]->getStartLoc(),
5642 "source operands must be sequential");
5646 case ARM::STRD_POST: {
5647 // Rt2 must be Rt + 1.
5648 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5649 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(2).getReg());
5651 return Error(Operands[3]->getStartLoc(),
5652 "source operands must be sequential");
5657 // Width must be in range [1, 32-lsb].
5658 unsigned LSB = Inst.getOperand(2).getImm();
5659 unsigned Widthm1 = Inst.getOperand(3).getImm();
5660 if (Widthm1 >= 32 - LSB)
5661 return Error(Operands[5]->getStartLoc(),
5662 "bitfield width must be in range [1,32-lsb]");
5665 // Notionally handles ARM::tLDMIA_UPD too.
5667 // If we're parsing Thumb2, the .w variant is available and handles
5668 // most cases that are normally illegal for a Thumb1 LDM instruction.
5669 // We'll make the transformation in processInstruction() if necessary.
5671 // Thumb LDM instructions are writeback iff the base register is not
5672 // in the register list.
5673 unsigned Rn = Inst.getOperand(0).getReg();
5674 bool HasWritebackToken =
5675 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
5676 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
5677 bool ListContainsBase;
5678 if (checkLowRegisterList(Inst, 3, Rn, 0, ListContainsBase) && !isThumbTwo())
5679 return Error(Operands[3 + HasWritebackToken]->getStartLoc(),
5680 "registers must be in range r0-r7");
5681 // If we should have writeback, then there should be a '!' token.
5682 if (!ListContainsBase && !HasWritebackToken && !isThumbTwo())
5683 return Error(Operands[2]->getStartLoc(),
5684 "writeback operator '!' expected");
5685 // If we should not have writeback, there must not be a '!'. This is
5686 // true even for the 32-bit wide encodings.
5687 if (ListContainsBase && HasWritebackToken)
5688 return Error(Operands[3]->getStartLoc(),
5689 "writeback operator '!' not allowed when base register "
5690 "in register list");
5694 case ARM::LDMIA_UPD:
5695 case ARM::LDMDB_UPD:
5696 case ARM::LDMIB_UPD:
5697 case ARM::LDMDA_UPD:
5698 // ARM variants loading and updating the same register are only officially
5699 // UNPREDICTABLE on v7 upwards. Goodness knows what they did before.
5703 case ARM::t2LDMIA_UPD:
5704 case ARM::t2LDMDB_UPD:
5705 case ARM::t2STMIA_UPD:
5706 case ARM::t2STMDB_UPD: {
5707 if (listContainsReg(Inst, 3, Inst.getOperand(0).getReg()))
5708 return Error(Operands.back()->getStartLoc(),
5709 "writeback register not allowed in register list");
5712 case ARM::sysLDMIA_UPD:
5713 case ARM::sysLDMDA_UPD:
5714 case ARM::sysLDMDB_UPD:
5715 case ARM::sysLDMIB_UPD:
5716 if (!listContainsReg(Inst, 3, ARM::PC))
5717 return Error(Operands[4]->getStartLoc(),
5718 "writeback register only allowed on system LDM "
5719 "if PC in register-list");
5721 case ARM::sysSTMIA_UPD:
5722 case ARM::sysSTMDA_UPD:
5723 case ARM::sysSTMDB_UPD:
5724 case ARM::sysSTMIB_UPD:
5725 return Error(Operands[2]->getStartLoc(),
5726 "system STM cannot have writeback register");
5729 // The second source operand must be the same register as the destination
5732 // In this case, we must directly check the parsed operands because the
5733 // cvtThumbMultiply() function is written in such a way that it guarantees
5734 // this first statement is always true for the new Inst. Essentially, the
5735 // destination is unconditionally copied into the second source operand
5736 // without checking to see if it matches what we actually parsed.
5737 if (Operands.size() == 6 &&
5738 (((ARMOperand*)Operands[3])->getReg() !=
5739 ((ARMOperand*)Operands[5])->getReg()) &&
5740 (((ARMOperand*)Operands[3])->getReg() !=
5741 ((ARMOperand*)Operands[4])->getReg())) {
5742 return Error(Operands[3]->getStartLoc(),
5743 "destination register must match source register");
5747 // Like for ldm/stm, push and pop have hi-reg handling version in Thumb2,
5748 // so only issue a diagnostic for thumb1. The instructions will be
5749 // switched to the t2 encodings in processInstruction() if necessary.
5751 bool ListContainsBase;
5752 if (checkLowRegisterList(Inst, 2, 0, ARM::PC, ListContainsBase) &&
5754 return Error(Operands[2]->getStartLoc(),
5755 "registers must be in range r0-r7 or pc");
5759 bool ListContainsBase;
5760 if (checkLowRegisterList(Inst, 2, 0, ARM::LR, ListContainsBase) &&
5762 return Error(Operands[2]->getStartLoc(),
5763 "registers must be in range r0-r7 or lr");
5766 case ARM::tSTMIA_UPD: {
5767 bool ListContainsBase, InvalidLowList;
5768 InvalidLowList = checkLowRegisterList(Inst, 4, Inst.getOperand(0).getReg(),
5769 0, ListContainsBase);
5770 if (InvalidLowList && !isThumbTwo())
5771 return Error(Operands[4]->getStartLoc(),
5772 "registers must be in range r0-r7");
5774 // This would be converted to a 32-bit stm, but that's not valid if the
5775 // writeback register is in the list.
5776 if (InvalidLowList && ListContainsBase)
5777 return Error(Operands[4]->getStartLoc(),
5778 "writeback operator '!' not allowed when base register "
5779 "in register list");
5782 case ARM::tADDrSP: {
5783 // If the non-SP source operand and the destination operand are not the
5784 // same, we need thumb2 (for the wide encoding), or we have an error.
5785 if (!isThumbTwo() &&
5786 Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
5787 return Error(Operands[4]->getStartLoc(),
5788 "source register must be the same as destination");
5792 // Final range checking for Thumb unconditional branch instructions.
5794 if (!(static_cast<ARMOperand*>(Operands[2]))->isSignedOffset<11, 1>())
5795 return Error(Operands[2]->getStartLoc(), "branch target out of range");
5798 int op = (Operands[2]->isImm()) ? 2 : 3;
5799 if (!(static_cast<ARMOperand*>(Operands[op]))->isSignedOffset<24, 1>())
5800 return Error(Operands[op]->getStartLoc(), "branch target out of range");
5803 // Final range checking for Thumb conditional branch instructions.
5805 if (!(static_cast<ARMOperand*>(Operands[2]))->isSignedOffset<8, 1>())
5806 return Error(Operands[2]->getStartLoc(), "branch target out of range");
5809 int Op = (Operands[2]->isImm()) ? 2 : 3;
5810 if (!(static_cast<ARMOperand*>(Operands[Op]))->isSignedOffset<20, 1>())
5811 return Error(Operands[Op]->getStartLoc(), "branch target out of range");
5819 static unsigned getRealVSTOpcode(unsigned Opc, unsigned &Spacing) {
5821 default: llvm_unreachable("unexpected opcode!");
5823 case ARM::VST1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5824 case ARM::VST1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5825 case ARM::VST1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5826 case ARM::VST1LNdWB_register_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5827 case ARM::VST1LNdWB_register_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5828 case ARM::VST1LNdWB_register_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5829 case ARM::VST1LNdAsm_8: Spacing = 1; return ARM::VST1LNd8;
5830 case ARM::VST1LNdAsm_16: Spacing = 1; return ARM::VST1LNd16;
5831 case ARM::VST1LNdAsm_32: Spacing = 1; return ARM::VST1LNd32;
5834 case ARM::VST2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5835 case ARM::VST2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5836 case ARM::VST2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5837 case ARM::VST2LNqWB_fixed_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5838 case ARM::VST2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5840 case ARM::VST2LNdWB_register_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5841 case ARM::VST2LNdWB_register_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5842 case ARM::VST2LNdWB_register_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5843 case ARM::VST2LNqWB_register_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5844 case ARM::VST2LNqWB_register_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5846 case ARM::VST2LNdAsm_8: Spacing = 1; return ARM::VST2LNd8;
5847 case ARM::VST2LNdAsm_16: Spacing = 1; return ARM::VST2LNd16;
5848 case ARM::VST2LNdAsm_32: Spacing = 1; return ARM::VST2LNd32;
5849 case ARM::VST2LNqAsm_16: Spacing = 2; return ARM::VST2LNq16;
5850 case ARM::VST2LNqAsm_32: Spacing = 2; return ARM::VST2LNq32;
5853 case ARM::VST3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5854 case ARM::VST3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5855 case ARM::VST3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5856 case ARM::VST3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNq16_UPD;
5857 case ARM::VST3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5858 case ARM::VST3LNdWB_register_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5859 case ARM::VST3LNdWB_register_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5860 case ARM::VST3LNdWB_register_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5861 case ARM::VST3LNqWB_register_Asm_16: Spacing = 2; return ARM::VST3LNq16_UPD;
5862 case ARM::VST3LNqWB_register_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5863 case ARM::VST3LNdAsm_8: Spacing = 1; return ARM::VST3LNd8;
5864 case ARM::VST3LNdAsm_16: Spacing = 1; return ARM::VST3LNd16;
5865 case ARM::VST3LNdAsm_32: Spacing = 1; return ARM::VST3LNd32;
5866 case ARM::VST3LNqAsm_16: Spacing = 2; return ARM::VST3LNq16;
5867 case ARM::VST3LNqAsm_32: Spacing = 2; return ARM::VST3LNq32;
5870 case ARM::VST3dWB_fixed_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5871 case ARM::VST3dWB_fixed_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5872 case ARM::VST3dWB_fixed_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5873 case ARM::VST3qWB_fixed_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5874 case ARM::VST3qWB_fixed_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5875 case ARM::VST3qWB_fixed_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5876 case ARM::VST3dWB_register_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5877 case ARM::VST3dWB_register_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5878 case ARM::VST3dWB_register_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5879 case ARM::VST3qWB_register_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5880 case ARM::VST3qWB_register_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5881 case ARM::VST3qWB_register_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5882 case ARM::VST3dAsm_8: Spacing = 1; return ARM::VST3d8;
5883 case ARM::VST3dAsm_16: Spacing = 1; return ARM::VST3d16;
5884 case ARM::VST3dAsm_32: Spacing = 1; return ARM::VST3d32;
5885 case ARM::VST3qAsm_8: Spacing = 2; return ARM::VST3q8;
5886 case ARM::VST3qAsm_16: Spacing = 2; return ARM::VST3q16;
5887 case ARM::VST3qAsm_32: Spacing = 2; return ARM::VST3q32;
5890 case ARM::VST4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5891 case ARM::VST4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5892 case ARM::VST4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5893 case ARM::VST4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNq16_UPD;
5894 case ARM::VST4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5895 case ARM::VST4LNdWB_register_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5896 case ARM::VST4LNdWB_register_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5897 case ARM::VST4LNdWB_register_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5898 case ARM::VST4LNqWB_register_Asm_16: Spacing = 2; return ARM::VST4LNq16_UPD;
5899 case ARM::VST4LNqWB_register_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5900 case ARM::VST4LNdAsm_8: Spacing = 1; return ARM::VST4LNd8;
5901 case ARM::VST4LNdAsm_16: Spacing = 1; return ARM::VST4LNd16;
5902 case ARM::VST4LNdAsm_32: Spacing = 1; return ARM::VST4LNd32;
5903 case ARM::VST4LNqAsm_16: Spacing = 2; return ARM::VST4LNq16;
5904 case ARM::VST4LNqAsm_32: Spacing = 2; return ARM::VST4LNq32;
5907 case ARM::VST4dWB_fixed_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5908 case ARM::VST4dWB_fixed_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5909 case ARM::VST4dWB_fixed_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5910 case ARM::VST4qWB_fixed_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5911 case ARM::VST4qWB_fixed_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5912 case ARM::VST4qWB_fixed_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5913 case ARM::VST4dWB_register_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5914 case ARM::VST4dWB_register_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5915 case ARM::VST4dWB_register_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5916 case ARM::VST4qWB_register_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5917 case ARM::VST4qWB_register_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5918 case ARM::VST4qWB_register_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5919 case ARM::VST4dAsm_8: Spacing = 1; return ARM::VST4d8;
5920 case ARM::VST4dAsm_16: Spacing = 1; return ARM::VST4d16;
5921 case ARM::VST4dAsm_32: Spacing = 1; return ARM::VST4d32;
5922 case ARM::VST4qAsm_8: Spacing = 2; return ARM::VST4q8;
5923 case ARM::VST4qAsm_16: Spacing = 2; return ARM::VST4q16;
5924 case ARM::VST4qAsm_32: Spacing = 2; return ARM::VST4q32;
5928 static unsigned getRealVLDOpcode(unsigned Opc, unsigned &Spacing) {
5930 default: llvm_unreachable("unexpected opcode!");
5932 case ARM::VLD1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5933 case ARM::VLD1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5934 case ARM::VLD1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5935 case ARM::VLD1LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5936 case ARM::VLD1LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5937 case ARM::VLD1LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5938 case ARM::VLD1LNdAsm_8: Spacing = 1; return ARM::VLD1LNd8;
5939 case ARM::VLD1LNdAsm_16: Spacing = 1; return ARM::VLD1LNd16;
5940 case ARM::VLD1LNdAsm_32: Spacing = 1; return ARM::VLD1LNd32;
5943 case ARM::VLD2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5944 case ARM::VLD2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5945 case ARM::VLD2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5946 case ARM::VLD2LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNq16_UPD;
5947 case ARM::VLD2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5948 case ARM::VLD2LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5949 case ARM::VLD2LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5950 case ARM::VLD2LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5951 case ARM::VLD2LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD2LNq16_UPD;
5952 case ARM::VLD2LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5953 case ARM::VLD2LNdAsm_8: Spacing = 1; return ARM::VLD2LNd8;
5954 case ARM::VLD2LNdAsm_16: Spacing = 1; return ARM::VLD2LNd16;
5955 case ARM::VLD2LNdAsm_32: Spacing = 1; return ARM::VLD2LNd32;
5956 case ARM::VLD2LNqAsm_16: Spacing = 2; return ARM::VLD2LNq16;
5957 case ARM::VLD2LNqAsm_32: Spacing = 2; return ARM::VLD2LNq32;
5960 case ARM::VLD3DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5961 case ARM::VLD3DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5962 case ARM::VLD3DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5963 case ARM::VLD3DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPq8_UPD;
5964 case ARM::VLD3DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPq16_UPD;
5965 case ARM::VLD3DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5966 case ARM::VLD3DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5967 case ARM::VLD3DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5968 case ARM::VLD3DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5969 case ARM::VLD3DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD3DUPq8_UPD;
5970 case ARM::VLD3DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD3DUPq16_UPD;
5971 case ARM::VLD3DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5972 case ARM::VLD3DUPdAsm_8: Spacing = 1; return ARM::VLD3DUPd8;
5973 case ARM::VLD3DUPdAsm_16: Spacing = 1; return ARM::VLD3DUPd16;
5974 case ARM::VLD3DUPdAsm_32: Spacing = 1; return ARM::VLD3DUPd32;
5975 case ARM::VLD3DUPqAsm_8: Spacing = 2; return ARM::VLD3DUPq8;
5976 case ARM::VLD3DUPqAsm_16: Spacing = 2; return ARM::VLD3DUPq16;
5977 case ARM::VLD3DUPqAsm_32: Spacing = 2; return ARM::VLD3DUPq32;
5980 case ARM::VLD3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5981 case ARM::VLD3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5982 case ARM::VLD3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5983 case ARM::VLD3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNq16_UPD;
5984 case ARM::VLD3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5985 case ARM::VLD3LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5986 case ARM::VLD3LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5987 case ARM::VLD3LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5988 case ARM::VLD3LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD3LNq16_UPD;
5989 case ARM::VLD3LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5990 case ARM::VLD3LNdAsm_8: Spacing = 1; return ARM::VLD3LNd8;
5991 case ARM::VLD3LNdAsm_16: Spacing = 1; return ARM::VLD3LNd16;
5992 case ARM::VLD3LNdAsm_32: Spacing = 1; return ARM::VLD3LNd32;
5993 case ARM::VLD3LNqAsm_16: Spacing = 2; return ARM::VLD3LNq16;
5994 case ARM::VLD3LNqAsm_32: Spacing = 2; return ARM::VLD3LNq32;
5997 case ARM::VLD3dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5998 case ARM::VLD3dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5999 case ARM::VLD3dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
6000 case ARM::VLD3qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
6001 case ARM::VLD3qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
6002 case ARM::VLD3qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
6003 case ARM::VLD3dWB_register_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
6004 case ARM::VLD3dWB_register_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
6005 case ARM::VLD3dWB_register_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
6006 case ARM::VLD3qWB_register_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
6007 case ARM::VLD3qWB_register_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
6008 case ARM::VLD3qWB_register_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
6009 case ARM::VLD3dAsm_8: Spacing = 1; return ARM::VLD3d8;
6010 case ARM::VLD3dAsm_16: Spacing = 1; return ARM::VLD3d16;
6011 case ARM::VLD3dAsm_32: Spacing = 1; return ARM::VLD3d32;
6012 case ARM::VLD3qAsm_8: Spacing = 2; return ARM::VLD3q8;
6013 case ARM::VLD3qAsm_16: Spacing = 2; return ARM::VLD3q16;
6014 case ARM::VLD3qAsm_32: Spacing = 2; return ARM::VLD3q32;
6017 case ARM::VLD4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
6018 case ARM::VLD4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
6019 case ARM::VLD4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
6020 case ARM::VLD4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNq16_UPD;
6021 case ARM::VLD4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
6022 case ARM::VLD4LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
6023 case ARM::VLD4LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
6024 case ARM::VLD4LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
6025 case ARM::VLD4LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD4LNq16_UPD;
6026 case ARM::VLD4LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
6027 case ARM::VLD4LNdAsm_8: Spacing = 1; return ARM::VLD4LNd8;
6028 case ARM::VLD4LNdAsm_16: Spacing = 1; return ARM::VLD4LNd16;
6029 case ARM::VLD4LNdAsm_32: Spacing = 1; return ARM::VLD4LNd32;
6030 case ARM::VLD4LNqAsm_16: Spacing = 2; return ARM::VLD4LNq16;
6031 case ARM::VLD4LNqAsm_32: Spacing = 2; return ARM::VLD4LNq32;
6034 case ARM::VLD4DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
6035 case ARM::VLD4DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
6036 case ARM::VLD4DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
6037 case ARM::VLD4DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPq8_UPD;
6038 case ARM::VLD4DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPq16_UPD;
6039 case ARM::VLD4DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
6040 case ARM::VLD4DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
6041 case ARM::VLD4DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
6042 case ARM::VLD4DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
6043 case ARM::VLD4DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD4DUPq8_UPD;
6044 case ARM::VLD4DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD4DUPq16_UPD;
6045 case ARM::VLD4DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
6046 case ARM::VLD4DUPdAsm_8: Spacing = 1; return ARM::VLD4DUPd8;
6047 case ARM::VLD4DUPdAsm_16: Spacing = 1; return ARM::VLD4DUPd16;
6048 case ARM::VLD4DUPdAsm_32: Spacing = 1; return ARM::VLD4DUPd32;
6049 case ARM::VLD4DUPqAsm_8: Spacing = 2; return ARM::VLD4DUPq8;
6050 case ARM::VLD4DUPqAsm_16: Spacing = 2; return ARM::VLD4DUPq16;
6051 case ARM::VLD4DUPqAsm_32: Spacing = 2; return ARM::VLD4DUPq32;
6054 case ARM::VLD4dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
6055 case ARM::VLD4dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
6056 case ARM::VLD4dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
6057 case ARM::VLD4qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
6058 case ARM::VLD4qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
6059 case ARM::VLD4qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
6060 case ARM::VLD4dWB_register_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
6061 case ARM::VLD4dWB_register_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
6062 case ARM::VLD4dWB_register_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
6063 case ARM::VLD4qWB_register_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
6064 case ARM::VLD4qWB_register_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
6065 case ARM::VLD4qWB_register_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
6066 case ARM::VLD4dAsm_8: Spacing = 1; return ARM::VLD4d8;
6067 case ARM::VLD4dAsm_16: Spacing = 1; return ARM::VLD4d16;
6068 case ARM::VLD4dAsm_32: Spacing = 1; return ARM::VLD4d32;
6069 case ARM::VLD4qAsm_8: Spacing = 2; return ARM::VLD4q8;
6070 case ARM::VLD4qAsm_16: Spacing = 2; return ARM::VLD4q16;
6071 case ARM::VLD4qAsm_32: Spacing = 2; return ARM::VLD4q32;
6076 processInstruction(MCInst &Inst,
6077 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
6078 switch (Inst.getOpcode()) {
6079 // Alias for alternate form of 'ldr{,b}t Rt, [Rn], #imm' instruction.
6080 case ARM::LDRT_POST:
6081 case ARM::LDRBT_POST: {
6082 const unsigned Opcode =
6083 (Inst.getOpcode() == ARM::LDRT_POST) ? ARM::LDRT_POST_IMM
6084 : ARM::LDRBT_POST_IMM;
6086 TmpInst.setOpcode(Opcode);
6087 TmpInst.addOperand(Inst.getOperand(0));
6088 TmpInst.addOperand(Inst.getOperand(1));
6089 TmpInst.addOperand(Inst.getOperand(1));
6090 TmpInst.addOperand(MCOperand::CreateReg(0));
6091 TmpInst.addOperand(MCOperand::CreateImm(0));
6092 TmpInst.addOperand(Inst.getOperand(2));
6093 TmpInst.addOperand(Inst.getOperand(3));
6097 // Alias for alternate form of 'str{,b}t Rt, [Rn], #imm' instruction.
6098 case ARM::STRT_POST:
6099 case ARM::STRBT_POST: {
6100 const unsigned Opcode =
6101 (Inst.getOpcode() == ARM::STRT_POST) ? ARM::STRT_POST_IMM
6102 : ARM::STRBT_POST_IMM;
6104 TmpInst.setOpcode(Opcode);
6105 TmpInst.addOperand(Inst.getOperand(1));
6106 TmpInst.addOperand(Inst.getOperand(0));
6107 TmpInst.addOperand(Inst.getOperand(1));
6108 TmpInst.addOperand(MCOperand::CreateReg(0));
6109 TmpInst.addOperand(MCOperand::CreateImm(0));
6110 TmpInst.addOperand(Inst.getOperand(2));
6111 TmpInst.addOperand(Inst.getOperand(3));
6115 // Alias for alternate form of 'ADR Rd, #imm' instruction.
6117 if (Inst.getOperand(1).getReg() != ARM::PC ||
6118 Inst.getOperand(5).getReg() != 0)
6121 TmpInst.setOpcode(ARM::ADR);
6122 TmpInst.addOperand(Inst.getOperand(0));
6123 TmpInst.addOperand(Inst.getOperand(2));
6124 TmpInst.addOperand(Inst.getOperand(3));
6125 TmpInst.addOperand(Inst.getOperand(4));
6129 // Aliases for alternate PC+imm syntax of LDR instructions.
6130 case ARM::t2LDRpcrel:
6131 // Select the narrow version if the immediate will fit.
6132 if (Inst.getOperand(1).getImm() > 0 &&
6133 Inst.getOperand(1).getImm() <= 0xff &&
6134 !(static_cast<ARMOperand*>(Operands[2])->isToken() &&
6135 static_cast<ARMOperand*>(Operands[2])->getToken() == ".w"))
6136 Inst.setOpcode(ARM::tLDRpci);
6138 Inst.setOpcode(ARM::t2LDRpci);
6140 case ARM::t2LDRBpcrel:
6141 Inst.setOpcode(ARM::t2LDRBpci);
6143 case ARM::t2LDRHpcrel:
6144 Inst.setOpcode(ARM::t2LDRHpci);
6146 case ARM::t2LDRSBpcrel:
6147 Inst.setOpcode(ARM::t2LDRSBpci);
6149 case ARM::t2LDRSHpcrel:
6150 Inst.setOpcode(ARM::t2LDRSHpci);
6152 // Handle NEON VST complex aliases.
6153 case ARM::VST1LNdWB_register_Asm_8:
6154 case ARM::VST1LNdWB_register_Asm_16:
6155 case ARM::VST1LNdWB_register_Asm_32: {
6157 // Shuffle the operands around so the lane index operand is in the
6160 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6161 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6162 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6163 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6164 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6165 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6166 TmpInst.addOperand(Inst.getOperand(1)); // lane
6167 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6168 TmpInst.addOperand(Inst.getOperand(6));
6173 case ARM::VST2LNdWB_register_Asm_8:
6174 case ARM::VST2LNdWB_register_Asm_16:
6175 case ARM::VST2LNdWB_register_Asm_32:
6176 case ARM::VST2LNqWB_register_Asm_16:
6177 case ARM::VST2LNqWB_register_Asm_32: {
6179 // Shuffle the operands around so the lane index operand is in the
6182 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6183 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6184 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6185 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6186 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6187 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6188 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6190 TmpInst.addOperand(Inst.getOperand(1)); // lane
6191 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6192 TmpInst.addOperand(Inst.getOperand(6));
6197 case ARM::VST3LNdWB_register_Asm_8:
6198 case ARM::VST3LNdWB_register_Asm_16:
6199 case ARM::VST3LNdWB_register_Asm_32:
6200 case ARM::VST3LNqWB_register_Asm_16:
6201 case ARM::VST3LNqWB_register_Asm_32: {
6203 // Shuffle the operands around so the lane index operand is in the
6206 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6207 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6208 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6209 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6210 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6211 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6212 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6214 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6216 TmpInst.addOperand(Inst.getOperand(1)); // lane
6217 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6218 TmpInst.addOperand(Inst.getOperand(6));
6223 case ARM::VST4LNdWB_register_Asm_8:
6224 case ARM::VST4LNdWB_register_Asm_16:
6225 case ARM::VST4LNdWB_register_Asm_32:
6226 case ARM::VST4LNqWB_register_Asm_16:
6227 case ARM::VST4LNqWB_register_Asm_32: {
6229 // Shuffle the operands around so the lane index operand is in the
6232 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6233 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6234 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6235 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6236 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6237 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6238 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6240 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6242 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6244 TmpInst.addOperand(Inst.getOperand(1)); // lane
6245 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6246 TmpInst.addOperand(Inst.getOperand(6));
6251 case ARM::VST1LNdWB_fixed_Asm_8:
6252 case ARM::VST1LNdWB_fixed_Asm_16:
6253 case ARM::VST1LNdWB_fixed_Asm_32: {
6255 // Shuffle the operands around so the lane index operand is in the
6258 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6259 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6260 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6261 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6262 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6263 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6264 TmpInst.addOperand(Inst.getOperand(1)); // lane
6265 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6266 TmpInst.addOperand(Inst.getOperand(5));
6271 case ARM::VST2LNdWB_fixed_Asm_8:
6272 case ARM::VST2LNdWB_fixed_Asm_16:
6273 case ARM::VST2LNdWB_fixed_Asm_32:
6274 case ARM::VST2LNqWB_fixed_Asm_16:
6275 case ARM::VST2LNqWB_fixed_Asm_32: {
6277 // Shuffle the operands around so the lane index operand is in the
6280 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6281 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6282 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6283 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6284 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6285 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6286 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6288 TmpInst.addOperand(Inst.getOperand(1)); // lane
6289 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6290 TmpInst.addOperand(Inst.getOperand(5));
6295 case ARM::VST3LNdWB_fixed_Asm_8:
6296 case ARM::VST3LNdWB_fixed_Asm_16:
6297 case ARM::VST3LNdWB_fixed_Asm_32:
6298 case ARM::VST3LNqWB_fixed_Asm_16:
6299 case ARM::VST3LNqWB_fixed_Asm_32: {
6301 // Shuffle the operands around so the lane index operand is in the
6304 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6305 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6306 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6307 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6308 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6309 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6310 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6312 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6314 TmpInst.addOperand(Inst.getOperand(1)); // lane
6315 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6316 TmpInst.addOperand(Inst.getOperand(5));
6321 case ARM::VST4LNdWB_fixed_Asm_8:
6322 case ARM::VST4LNdWB_fixed_Asm_16:
6323 case ARM::VST4LNdWB_fixed_Asm_32:
6324 case ARM::VST4LNqWB_fixed_Asm_16:
6325 case ARM::VST4LNqWB_fixed_Asm_32: {
6327 // Shuffle the operands around so the lane index operand is in the
6330 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6331 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6332 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6333 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6334 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6335 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6336 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6338 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6340 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6342 TmpInst.addOperand(Inst.getOperand(1)); // lane
6343 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6344 TmpInst.addOperand(Inst.getOperand(5));
6349 case ARM::VST1LNdAsm_8:
6350 case ARM::VST1LNdAsm_16:
6351 case ARM::VST1LNdAsm_32: {
6353 // Shuffle the operands around so the lane index operand is in the
6356 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6357 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6358 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6359 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6360 TmpInst.addOperand(Inst.getOperand(1)); // lane
6361 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6362 TmpInst.addOperand(Inst.getOperand(5));
6367 case ARM::VST2LNdAsm_8:
6368 case ARM::VST2LNdAsm_16:
6369 case ARM::VST2LNdAsm_32:
6370 case ARM::VST2LNqAsm_16:
6371 case ARM::VST2LNqAsm_32: {
6373 // Shuffle the operands around so the lane index operand is in the
6376 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6377 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6378 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6379 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6380 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6382 TmpInst.addOperand(Inst.getOperand(1)); // lane
6383 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6384 TmpInst.addOperand(Inst.getOperand(5));
6389 case ARM::VST3LNdAsm_8:
6390 case ARM::VST3LNdAsm_16:
6391 case ARM::VST3LNdAsm_32:
6392 case ARM::VST3LNqAsm_16:
6393 case ARM::VST3LNqAsm_32: {
6395 // Shuffle the operands around so the lane index operand is in the
6398 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6399 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6400 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6401 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6402 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6404 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6406 TmpInst.addOperand(Inst.getOperand(1)); // lane
6407 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6408 TmpInst.addOperand(Inst.getOperand(5));
6413 case ARM::VST4LNdAsm_8:
6414 case ARM::VST4LNdAsm_16:
6415 case ARM::VST4LNdAsm_32:
6416 case ARM::VST4LNqAsm_16:
6417 case ARM::VST4LNqAsm_32: {
6419 // Shuffle the operands around so the lane index operand is in the
6422 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6423 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6424 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6425 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6426 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6428 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6430 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6432 TmpInst.addOperand(Inst.getOperand(1)); // lane
6433 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6434 TmpInst.addOperand(Inst.getOperand(5));
6439 // Handle NEON VLD complex aliases.
6440 case ARM::VLD1LNdWB_register_Asm_8:
6441 case ARM::VLD1LNdWB_register_Asm_16:
6442 case ARM::VLD1LNdWB_register_Asm_32: {
6444 // Shuffle the operands around so the lane index operand is in the
6447 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6448 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6449 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6450 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6451 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6452 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6453 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6454 TmpInst.addOperand(Inst.getOperand(1)); // lane
6455 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6456 TmpInst.addOperand(Inst.getOperand(6));
6461 case ARM::VLD2LNdWB_register_Asm_8:
6462 case ARM::VLD2LNdWB_register_Asm_16:
6463 case ARM::VLD2LNdWB_register_Asm_32:
6464 case ARM::VLD2LNqWB_register_Asm_16:
6465 case ARM::VLD2LNqWB_register_Asm_32: {
6467 // Shuffle the operands around so the lane index operand is in the
6470 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6471 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6472 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6474 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6475 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6476 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6477 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6478 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6479 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6481 TmpInst.addOperand(Inst.getOperand(1)); // lane
6482 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6483 TmpInst.addOperand(Inst.getOperand(6));
6488 case ARM::VLD3LNdWB_register_Asm_8:
6489 case ARM::VLD3LNdWB_register_Asm_16:
6490 case ARM::VLD3LNdWB_register_Asm_32:
6491 case ARM::VLD3LNqWB_register_Asm_16:
6492 case ARM::VLD3LNqWB_register_Asm_32: {
6494 // Shuffle the operands around so the lane index operand is in the
6497 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6498 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6499 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6501 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6503 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6504 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6505 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6506 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6507 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6508 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6510 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6512 TmpInst.addOperand(Inst.getOperand(1)); // lane
6513 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6514 TmpInst.addOperand(Inst.getOperand(6));
6519 case ARM::VLD4LNdWB_register_Asm_8:
6520 case ARM::VLD4LNdWB_register_Asm_16:
6521 case ARM::VLD4LNdWB_register_Asm_32:
6522 case ARM::VLD4LNqWB_register_Asm_16:
6523 case ARM::VLD4LNqWB_register_Asm_32: {
6525 // Shuffle the operands around so the lane index operand is in the
6528 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6529 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6530 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6532 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6534 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6536 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6537 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6538 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6539 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6540 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6541 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6543 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6545 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6547 TmpInst.addOperand(Inst.getOperand(1)); // lane
6548 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6549 TmpInst.addOperand(Inst.getOperand(6));
6554 case ARM::VLD1LNdWB_fixed_Asm_8:
6555 case ARM::VLD1LNdWB_fixed_Asm_16:
6556 case ARM::VLD1LNdWB_fixed_Asm_32: {
6558 // Shuffle the operands around so the lane index operand is in the
6561 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6562 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6563 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6564 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6565 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6566 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6567 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6568 TmpInst.addOperand(Inst.getOperand(1)); // lane
6569 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6570 TmpInst.addOperand(Inst.getOperand(5));
6575 case ARM::VLD2LNdWB_fixed_Asm_8:
6576 case ARM::VLD2LNdWB_fixed_Asm_16:
6577 case ARM::VLD2LNdWB_fixed_Asm_32:
6578 case ARM::VLD2LNqWB_fixed_Asm_16:
6579 case ARM::VLD2LNqWB_fixed_Asm_32: {
6581 // Shuffle the operands around so the lane index operand is in the
6584 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6585 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6586 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6588 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6589 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6590 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6591 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6592 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6593 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6595 TmpInst.addOperand(Inst.getOperand(1)); // lane
6596 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6597 TmpInst.addOperand(Inst.getOperand(5));
6602 case ARM::VLD3LNdWB_fixed_Asm_8:
6603 case ARM::VLD3LNdWB_fixed_Asm_16:
6604 case ARM::VLD3LNdWB_fixed_Asm_32:
6605 case ARM::VLD3LNqWB_fixed_Asm_16:
6606 case ARM::VLD3LNqWB_fixed_Asm_32: {
6608 // Shuffle the operands around so the lane index operand is in the
6611 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6612 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6613 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6615 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6617 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6618 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6619 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6620 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6621 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6622 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6624 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6626 TmpInst.addOperand(Inst.getOperand(1)); // lane
6627 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6628 TmpInst.addOperand(Inst.getOperand(5));
6633 case ARM::VLD4LNdWB_fixed_Asm_8:
6634 case ARM::VLD4LNdWB_fixed_Asm_16:
6635 case ARM::VLD4LNdWB_fixed_Asm_32:
6636 case ARM::VLD4LNqWB_fixed_Asm_16:
6637 case ARM::VLD4LNqWB_fixed_Asm_32: {
6639 // Shuffle the operands around so the lane index operand is in the
6642 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6643 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6644 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6646 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6648 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6650 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6651 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6652 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6653 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6654 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6655 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6657 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6659 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6661 TmpInst.addOperand(Inst.getOperand(1)); // lane
6662 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6663 TmpInst.addOperand(Inst.getOperand(5));
6668 case ARM::VLD1LNdAsm_8:
6669 case ARM::VLD1LNdAsm_16:
6670 case ARM::VLD1LNdAsm_32: {
6672 // Shuffle the operands around so the lane index operand is in the
6675 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6676 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6677 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6678 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6679 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6680 TmpInst.addOperand(Inst.getOperand(1)); // lane
6681 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6682 TmpInst.addOperand(Inst.getOperand(5));
6687 case ARM::VLD2LNdAsm_8:
6688 case ARM::VLD2LNdAsm_16:
6689 case ARM::VLD2LNdAsm_32:
6690 case ARM::VLD2LNqAsm_16:
6691 case ARM::VLD2LNqAsm_32: {
6693 // Shuffle the operands around so the lane index operand is in the
6696 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6697 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6698 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6700 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6701 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6702 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6703 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6705 TmpInst.addOperand(Inst.getOperand(1)); // lane
6706 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6707 TmpInst.addOperand(Inst.getOperand(5));
6712 case ARM::VLD3LNdAsm_8:
6713 case ARM::VLD3LNdAsm_16:
6714 case ARM::VLD3LNdAsm_32:
6715 case ARM::VLD3LNqAsm_16:
6716 case ARM::VLD3LNqAsm_32: {
6718 // Shuffle the operands around so the lane index operand is in the
6721 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6722 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6723 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6725 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6727 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6728 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6729 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6730 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6732 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6734 TmpInst.addOperand(Inst.getOperand(1)); // lane
6735 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6736 TmpInst.addOperand(Inst.getOperand(5));
6741 case ARM::VLD4LNdAsm_8:
6742 case ARM::VLD4LNdAsm_16:
6743 case ARM::VLD4LNdAsm_32:
6744 case ARM::VLD4LNqAsm_16:
6745 case ARM::VLD4LNqAsm_32: {
6747 // Shuffle the operands around so the lane index operand is in the
6750 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6751 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6752 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6754 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6756 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6758 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6759 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6760 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6761 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6763 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6765 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6767 TmpInst.addOperand(Inst.getOperand(1)); // lane
6768 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6769 TmpInst.addOperand(Inst.getOperand(5));
6774 // VLD3DUP single 3-element structure to all lanes instructions.
6775 case ARM::VLD3DUPdAsm_8:
6776 case ARM::VLD3DUPdAsm_16:
6777 case ARM::VLD3DUPdAsm_32:
6778 case ARM::VLD3DUPqAsm_8:
6779 case ARM::VLD3DUPqAsm_16:
6780 case ARM::VLD3DUPqAsm_32: {
6783 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6784 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6785 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6787 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6789 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6790 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6791 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6792 TmpInst.addOperand(Inst.getOperand(4));
6797 case ARM::VLD3DUPdWB_fixed_Asm_8:
6798 case ARM::VLD3DUPdWB_fixed_Asm_16:
6799 case ARM::VLD3DUPdWB_fixed_Asm_32:
6800 case ARM::VLD3DUPqWB_fixed_Asm_8:
6801 case ARM::VLD3DUPqWB_fixed_Asm_16:
6802 case ARM::VLD3DUPqWB_fixed_Asm_32: {
6805 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6806 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6807 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6809 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6811 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6812 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6813 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6814 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6815 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6816 TmpInst.addOperand(Inst.getOperand(4));
6821 case ARM::VLD3DUPdWB_register_Asm_8:
6822 case ARM::VLD3DUPdWB_register_Asm_16:
6823 case ARM::VLD3DUPdWB_register_Asm_32:
6824 case ARM::VLD3DUPqWB_register_Asm_8:
6825 case ARM::VLD3DUPqWB_register_Asm_16:
6826 case ARM::VLD3DUPqWB_register_Asm_32: {
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(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6835 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6836 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6837 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6838 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6839 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6840 TmpInst.addOperand(Inst.getOperand(5));
6845 // VLD3 multiple 3-element structure instructions.
6846 case ARM::VLD3dAsm_8:
6847 case ARM::VLD3dAsm_16:
6848 case ARM::VLD3dAsm_32:
6849 case ARM::VLD3qAsm_8:
6850 case ARM::VLD3qAsm_16:
6851 case ARM::VLD3qAsm_32: {
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(1)); // Rn
6861 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6862 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6863 TmpInst.addOperand(Inst.getOperand(4));
6868 case ARM::VLD3dWB_fixed_Asm_8:
6869 case ARM::VLD3dWB_fixed_Asm_16:
6870 case ARM::VLD3dWB_fixed_Asm_32:
6871 case ARM::VLD3qWB_fixed_Asm_8:
6872 case ARM::VLD3qWB_fixed_Asm_16:
6873 case ARM::VLD3qWB_fixed_Asm_32: {
6876 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6877 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6878 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6880 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6882 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6883 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6884 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6885 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6886 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6887 TmpInst.addOperand(Inst.getOperand(4));
6892 case ARM::VLD3dWB_register_Asm_8:
6893 case ARM::VLD3dWB_register_Asm_16:
6894 case ARM::VLD3dWB_register_Asm_32:
6895 case ARM::VLD3qWB_register_Asm_8:
6896 case ARM::VLD3qWB_register_Asm_16:
6897 case ARM::VLD3qWB_register_Asm_32: {
6900 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6901 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6902 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6904 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6906 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6907 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6908 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6909 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6910 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6911 TmpInst.addOperand(Inst.getOperand(5));
6916 // VLD4DUP single 3-element structure to all lanes instructions.
6917 case ARM::VLD4DUPdAsm_8:
6918 case ARM::VLD4DUPdAsm_16:
6919 case ARM::VLD4DUPdAsm_32:
6920 case ARM::VLD4DUPqAsm_8:
6921 case ARM::VLD4DUPqAsm_16:
6922 case ARM::VLD4DUPqAsm_32: {
6925 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6926 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6927 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6929 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6931 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6933 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6934 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6935 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6936 TmpInst.addOperand(Inst.getOperand(4));
6941 case ARM::VLD4DUPdWB_fixed_Asm_8:
6942 case ARM::VLD4DUPdWB_fixed_Asm_16:
6943 case ARM::VLD4DUPdWB_fixed_Asm_32:
6944 case ARM::VLD4DUPqWB_fixed_Asm_8:
6945 case ARM::VLD4DUPqWB_fixed_Asm_16:
6946 case ARM::VLD4DUPqWB_fixed_Asm_32: {
6949 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6950 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6951 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6953 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6955 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6957 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6958 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6959 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6960 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6961 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6962 TmpInst.addOperand(Inst.getOperand(4));
6967 case ARM::VLD4DUPdWB_register_Asm_8:
6968 case ARM::VLD4DUPdWB_register_Asm_16:
6969 case ARM::VLD4DUPdWB_register_Asm_32:
6970 case ARM::VLD4DUPqWB_register_Asm_8:
6971 case ARM::VLD4DUPqWB_register_Asm_16:
6972 case ARM::VLD4DUPqWB_register_Asm_32: {
6975 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6976 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6977 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6979 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6981 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6983 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6984 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6985 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6986 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6987 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6988 TmpInst.addOperand(Inst.getOperand(5));
6993 // VLD4 multiple 4-element structure instructions.
6994 case ARM::VLD4dAsm_8:
6995 case ARM::VLD4dAsm_16:
6996 case ARM::VLD4dAsm_32:
6997 case ARM::VLD4qAsm_8:
6998 case ARM::VLD4qAsm_16:
6999 case ARM::VLD4qAsm_32: {
7002 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
7003 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7004 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7006 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7008 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7010 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7011 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7012 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7013 TmpInst.addOperand(Inst.getOperand(4));
7018 case ARM::VLD4dWB_fixed_Asm_8:
7019 case ARM::VLD4dWB_fixed_Asm_16:
7020 case ARM::VLD4dWB_fixed_Asm_32:
7021 case ARM::VLD4qWB_fixed_Asm_8:
7022 case ARM::VLD4qWB_fixed_Asm_16:
7023 case ARM::VLD4qWB_fixed_Asm_32: {
7026 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
7027 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7028 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7030 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7032 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7034 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7035 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7036 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7037 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
7038 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7039 TmpInst.addOperand(Inst.getOperand(4));
7044 case ARM::VLD4dWB_register_Asm_8:
7045 case ARM::VLD4dWB_register_Asm_16:
7046 case ARM::VLD4dWB_register_Asm_32:
7047 case ARM::VLD4qWB_register_Asm_8:
7048 case ARM::VLD4qWB_register_Asm_16:
7049 case ARM::VLD4qWB_register_Asm_32: {
7052 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
7053 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7054 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7056 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7058 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7060 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7061 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7062 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7063 TmpInst.addOperand(Inst.getOperand(3)); // Rm
7064 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7065 TmpInst.addOperand(Inst.getOperand(5));
7070 // VST3 multiple 3-element structure instructions.
7071 case ARM::VST3dAsm_8:
7072 case ARM::VST3dAsm_16:
7073 case ARM::VST3dAsm_32:
7074 case ARM::VST3qAsm_8:
7075 case ARM::VST3qAsm_16:
7076 case ARM::VST3qAsm_32: {
7079 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7080 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7081 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7082 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7083 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7085 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7087 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7088 TmpInst.addOperand(Inst.getOperand(4));
7093 case ARM::VST3dWB_fixed_Asm_8:
7094 case ARM::VST3dWB_fixed_Asm_16:
7095 case ARM::VST3dWB_fixed_Asm_32:
7096 case ARM::VST3qWB_fixed_Asm_8:
7097 case ARM::VST3qWB_fixed_Asm_16:
7098 case ARM::VST3qWB_fixed_Asm_32: {
7101 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7102 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7103 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7104 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7105 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
7106 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7107 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7109 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7111 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7112 TmpInst.addOperand(Inst.getOperand(4));
7117 case ARM::VST3dWB_register_Asm_8:
7118 case ARM::VST3dWB_register_Asm_16:
7119 case ARM::VST3dWB_register_Asm_32:
7120 case ARM::VST3qWB_register_Asm_8:
7121 case ARM::VST3qWB_register_Asm_16:
7122 case ARM::VST3qWB_register_Asm_32: {
7125 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7126 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7127 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7128 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7129 TmpInst.addOperand(Inst.getOperand(3)); // Rm
7130 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7131 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7133 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7135 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7136 TmpInst.addOperand(Inst.getOperand(5));
7141 // VST4 multiple 3-element structure instructions.
7142 case ARM::VST4dAsm_8:
7143 case ARM::VST4dAsm_16:
7144 case ARM::VST4dAsm_32:
7145 case ARM::VST4qAsm_8:
7146 case ARM::VST4qAsm_16:
7147 case ARM::VST4qAsm_32: {
7150 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7151 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7152 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7153 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7154 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7156 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7158 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7160 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7161 TmpInst.addOperand(Inst.getOperand(4));
7166 case ARM::VST4dWB_fixed_Asm_8:
7167 case ARM::VST4dWB_fixed_Asm_16:
7168 case ARM::VST4dWB_fixed_Asm_32:
7169 case ARM::VST4qWB_fixed_Asm_8:
7170 case ARM::VST4qWB_fixed_Asm_16:
7171 case ARM::VST4qWB_fixed_Asm_32: {
7174 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7175 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7176 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7177 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7178 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
7179 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7180 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7182 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7184 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7186 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7187 TmpInst.addOperand(Inst.getOperand(4));
7192 case ARM::VST4dWB_register_Asm_8:
7193 case ARM::VST4dWB_register_Asm_16:
7194 case ARM::VST4dWB_register_Asm_32:
7195 case ARM::VST4qWB_register_Asm_8:
7196 case ARM::VST4qWB_register_Asm_16:
7197 case ARM::VST4qWB_register_Asm_32: {
7200 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7201 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7202 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7203 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7204 TmpInst.addOperand(Inst.getOperand(3)); // Rm
7205 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7206 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7208 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7210 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7212 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7213 TmpInst.addOperand(Inst.getOperand(5));
7218 // Handle encoding choice for the shift-immediate instructions.
7221 case ARM::t2ASRri: {
7222 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7223 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7224 Inst.getOperand(5).getReg() == (inITBlock() ? 0 : ARM::CPSR) &&
7225 !(static_cast<ARMOperand*>(Operands[3])->isToken() &&
7226 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w")) {
7228 switch (Inst.getOpcode()) {
7229 default: llvm_unreachable("unexpected opcode");
7230 case ARM::t2LSLri: NewOpc = ARM::tLSLri; break;
7231 case ARM::t2LSRri: NewOpc = ARM::tLSRri; break;
7232 case ARM::t2ASRri: NewOpc = ARM::tASRri; break;
7234 // The Thumb1 operands aren't in the same order. Awesome, eh?
7236 TmpInst.setOpcode(NewOpc);
7237 TmpInst.addOperand(Inst.getOperand(0));
7238 TmpInst.addOperand(Inst.getOperand(5));
7239 TmpInst.addOperand(Inst.getOperand(1));
7240 TmpInst.addOperand(Inst.getOperand(2));
7241 TmpInst.addOperand(Inst.getOperand(3));
7242 TmpInst.addOperand(Inst.getOperand(4));
7249 // Handle the Thumb2 mode MOV complex aliases.
7251 case ARM::t2MOVSsr: {
7252 // Which instruction to expand to depends on the CCOut operand and
7253 // whether we're in an IT block if the register operands are low
7255 bool isNarrow = false;
7256 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7257 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7258 isARMLowRegister(Inst.getOperand(2).getReg()) &&
7259 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7260 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsr))
7264 switch(ARM_AM::getSORegShOp(Inst.getOperand(3).getImm())) {
7265 default: llvm_unreachable("unexpected opcode!");
7266 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRrr : ARM::t2ASRrr; break;
7267 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRrr : ARM::t2LSRrr; break;
7268 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLrr : ARM::t2LSLrr; break;
7269 case ARM_AM::ror: newOpc = isNarrow ? ARM::tROR : ARM::t2RORrr; break;
7271 TmpInst.setOpcode(newOpc);
7272 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7274 TmpInst.addOperand(MCOperand::CreateReg(
7275 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
7276 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7277 TmpInst.addOperand(Inst.getOperand(2)); // Rm
7278 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7279 TmpInst.addOperand(Inst.getOperand(5));
7281 TmpInst.addOperand(MCOperand::CreateReg(
7282 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
7287 case ARM::t2MOVSsi: {
7288 // Which instruction to expand to depends on the CCOut operand and
7289 // whether we're in an IT block if the register operands are low
7291 bool isNarrow = false;
7292 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7293 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7294 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsi))
7298 switch(ARM_AM::getSORegShOp(Inst.getOperand(2).getImm())) {
7299 default: llvm_unreachable("unexpected opcode!");
7300 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRri : ARM::t2ASRri; break;
7301 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRri : ARM::t2LSRri; break;
7302 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLri : ARM::t2LSLri; break;
7303 case ARM_AM::ror: newOpc = ARM::t2RORri; isNarrow = false; break;
7304 case ARM_AM::rrx: isNarrow = false; newOpc = ARM::t2RRX; break;
7306 unsigned Amount = ARM_AM::getSORegOffset(Inst.getOperand(2).getImm());
7307 if (Amount == 32) Amount = 0;
7308 TmpInst.setOpcode(newOpc);
7309 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7311 TmpInst.addOperand(MCOperand::CreateReg(
7312 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
7313 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7314 if (newOpc != ARM::t2RRX)
7315 TmpInst.addOperand(MCOperand::CreateImm(Amount));
7316 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7317 TmpInst.addOperand(Inst.getOperand(4));
7319 TmpInst.addOperand(MCOperand::CreateReg(
7320 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
7324 // Handle the ARM mode MOV complex aliases.
7329 ARM_AM::ShiftOpc ShiftTy;
7330 switch(Inst.getOpcode()) {
7331 default: llvm_unreachable("unexpected opcode!");
7332 case ARM::ASRr: ShiftTy = ARM_AM::asr; break;
7333 case ARM::LSRr: ShiftTy = ARM_AM::lsr; break;
7334 case ARM::LSLr: ShiftTy = ARM_AM::lsl; break;
7335 case ARM::RORr: ShiftTy = ARM_AM::ror; break;
7337 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, 0);
7339 TmpInst.setOpcode(ARM::MOVsr);
7340 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7341 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7342 TmpInst.addOperand(Inst.getOperand(2)); // Rm
7343 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7344 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7345 TmpInst.addOperand(Inst.getOperand(4));
7346 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
7354 ARM_AM::ShiftOpc ShiftTy;
7355 switch(Inst.getOpcode()) {
7356 default: llvm_unreachable("unexpected opcode!");
7357 case ARM::ASRi: ShiftTy = ARM_AM::asr; break;
7358 case ARM::LSRi: ShiftTy = ARM_AM::lsr; break;
7359 case ARM::LSLi: ShiftTy = ARM_AM::lsl; break;
7360 case ARM::RORi: ShiftTy = ARM_AM::ror; break;
7362 // A shift by zero is a plain MOVr, not a MOVsi.
7363 unsigned Amt = Inst.getOperand(2).getImm();
7364 unsigned Opc = Amt == 0 ? ARM::MOVr : ARM::MOVsi;
7365 // A shift by 32 should be encoded as 0 when permitted
7366 if (Amt == 32 && (ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr))
7368 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, Amt);
7370 TmpInst.setOpcode(Opc);
7371 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7372 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7373 if (Opc == ARM::MOVsi)
7374 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7375 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7376 TmpInst.addOperand(Inst.getOperand(4));
7377 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
7382 unsigned Shifter = ARM_AM::getSORegOpc(ARM_AM::rrx, 0);
7384 TmpInst.setOpcode(ARM::MOVsi);
7385 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7386 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7387 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7388 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7389 TmpInst.addOperand(Inst.getOperand(3));
7390 TmpInst.addOperand(Inst.getOperand(4)); // cc_out
7394 case ARM::t2LDMIA_UPD: {
7395 // If this is a load of a single register, then we should use
7396 // a post-indexed LDR instruction instead, per the ARM ARM.
7397 if (Inst.getNumOperands() != 5)
7400 TmpInst.setOpcode(ARM::t2LDR_POST);
7401 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7402 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7403 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7404 TmpInst.addOperand(MCOperand::CreateImm(4));
7405 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7406 TmpInst.addOperand(Inst.getOperand(3));
7410 case ARM::t2STMDB_UPD: {
7411 // If this is a store of a single register, then we should use
7412 // a pre-indexed STR instruction instead, per the ARM ARM.
7413 if (Inst.getNumOperands() != 5)
7416 TmpInst.setOpcode(ARM::t2STR_PRE);
7417 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7418 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7419 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7420 TmpInst.addOperand(MCOperand::CreateImm(-4));
7421 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7422 TmpInst.addOperand(Inst.getOperand(3));
7426 case ARM::LDMIA_UPD:
7427 // If this is a load of a single register via a 'pop', then we should use
7428 // a post-indexed LDR instruction instead, per the ARM ARM.
7429 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "pop" &&
7430 Inst.getNumOperands() == 5) {
7432 TmpInst.setOpcode(ARM::LDR_POST_IMM);
7433 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7434 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7435 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7436 TmpInst.addOperand(MCOperand::CreateReg(0)); // am2offset
7437 TmpInst.addOperand(MCOperand::CreateImm(4));
7438 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7439 TmpInst.addOperand(Inst.getOperand(3));
7444 case ARM::STMDB_UPD:
7445 // If this is a store of a single register via a 'push', then we should use
7446 // a pre-indexed STR instruction instead, per the ARM ARM.
7447 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "push" &&
7448 Inst.getNumOperands() == 5) {
7450 TmpInst.setOpcode(ARM::STR_PRE_IMM);
7451 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7452 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7453 TmpInst.addOperand(Inst.getOperand(1)); // addrmode_imm12
7454 TmpInst.addOperand(MCOperand::CreateImm(-4));
7455 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7456 TmpInst.addOperand(Inst.getOperand(3));
7460 case ARM::t2ADDri12:
7461 // If the immediate fits for encoding T3 (t2ADDri) and the generic "add"
7462 // mnemonic was used (not "addw"), encoding T3 is preferred.
7463 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "add" ||
7464 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
7466 Inst.setOpcode(ARM::t2ADDri);
7467 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7469 case ARM::t2SUBri12:
7470 // If the immediate fits for encoding T3 (t2SUBri) and the generic "sub"
7471 // mnemonic was used (not "subw"), encoding T3 is preferred.
7472 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "sub" ||
7473 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
7475 Inst.setOpcode(ARM::t2SUBri);
7476 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7479 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
7480 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
7481 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
7482 // to encoding T1 if <Rd> is omitted."
7483 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
7484 Inst.setOpcode(ARM::tADDi3);
7489 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
7490 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
7491 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
7492 // to encoding T1 if <Rd> is omitted."
7493 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
7494 Inst.setOpcode(ARM::tSUBi3);
7499 case ARM::t2SUBri: {
7500 // If the destination and first source operand are the same, and
7501 // the flags are compatible with the current IT status, use encoding T2
7502 // instead of T3. For compatibility with the system 'as'. Make sure the
7503 // wide encoding wasn't explicit.
7504 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
7505 !isARMLowRegister(Inst.getOperand(0).getReg()) ||
7506 (unsigned)Inst.getOperand(2).getImm() > 255 ||
7507 ((!inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR) ||
7508 (inITBlock() && Inst.getOperand(5).getReg() != 0)) ||
7509 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7510 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
7513 TmpInst.setOpcode(Inst.getOpcode() == ARM::t2ADDri ?
7514 ARM::tADDi8 : ARM::tSUBi8);
7515 TmpInst.addOperand(Inst.getOperand(0));
7516 TmpInst.addOperand(Inst.getOperand(5));
7517 TmpInst.addOperand(Inst.getOperand(0));
7518 TmpInst.addOperand(Inst.getOperand(2));
7519 TmpInst.addOperand(Inst.getOperand(3));
7520 TmpInst.addOperand(Inst.getOperand(4));
7524 case ARM::t2ADDrr: {
7525 // If the destination and first source operand are the same, and
7526 // there's no setting of the flags, use encoding T2 instead of T3.
7527 // Note that this is only for ADD, not SUB. This mirrors the system
7528 // 'as' behaviour. Make sure the wide encoding wasn't explicit.
7529 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
7530 Inst.getOperand(5).getReg() != 0 ||
7531 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7532 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
7535 TmpInst.setOpcode(ARM::tADDhirr);
7536 TmpInst.addOperand(Inst.getOperand(0));
7537 TmpInst.addOperand(Inst.getOperand(0));
7538 TmpInst.addOperand(Inst.getOperand(2));
7539 TmpInst.addOperand(Inst.getOperand(3));
7540 TmpInst.addOperand(Inst.getOperand(4));
7544 case ARM::tADDrSP: {
7545 // If the non-SP source operand and the destination operand are not the
7546 // same, we need to use the 32-bit encoding if it's available.
7547 if (Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
7548 Inst.setOpcode(ARM::t2ADDrr);
7549 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7555 // A Thumb conditional branch outside of an IT block is a tBcc.
7556 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()) {
7557 Inst.setOpcode(ARM::tBcc);
7562 // A Thumb2 conditional branch outside of an IT block is a t2Bcc.
7563 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()){
7564 Inst.setOpcode(ARM::t2Bcc);
7569 // If the conditional is AL or we're in an IT block, we really want t2B.
7570 if (Inst.getOperand(1).getImm() == ARMCC::AL || inITBlock()) {
7571 Inst.setOpcode(ARM::t2B);
7576 // If the conditional is AL, we really want tB.
7577 if (Inst.getOperand(1).getImm() == ARMCC::AL) {
7578 Inst.setOpcode(ARM::tB);
7583 // If the register list contains any high registers, or if the writeback
7584 // doesn't match what tLDMIA can do, we need to use the 32-bit encoding
7585 // instead if we're in Thumb2. Otherwise, this should have generated
7586 // an error in validateInstruction().
7587 unsigned Rn = Inst.getOperand(0).getReg();
7588 bool hasWritebackToken =
7589 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7590 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
7591 bool listContainsBase;
7592 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) ||
7593 (!listContainsBase && !hasWritebackToken) ||
7594 (listContainsBase && hasWritebackToken)) {
7595 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7596 assert (isThumbTwo());
7597 Inst.setOpcode(hasWritebackToken ? ARM::t2LDMIA_UPD : ARM::t2LDMIA);
7598 // If we're switching to the updating version, we need to insert
7599 // the writeback tied operand.
7600 if (hasWritebackToken)
7601 Inst.insert(Inst.begin(),
7602 MCOperand::CreateReg(Inst.getOperand(0).getReg()));
7607 case ARM::tSTMIA_UPD: {
7608 // If the register list contains any high registers, we need to use
7609 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7610 // should have generated an error in validateInstruction().
7611 unsigned Rn = Inst.getOperand(0).getReg();
7612 bool listContainsBase;
7613 if (checkLowRegisterList(Inst, 4, Rn, 0, listContainsBase)) {
7614 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7615 assert (isThumbTwo());
7616 Inst.setOpcode(ARM::t2STMIA_UPD);
7622 bool listContainsBase;
7623 // If the register list contains any high registers, we need to use
7624 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7625 // should have generated an error in validateInstruction().
7626 if (!checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase))
7628 assert (isThumbTwo());
7629 Inst.setOpcode(ARM::t2LDMIA_UPD);
7630 // Add the base register and writeback operands.
7631 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7632 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7636 bool listContainsBase;
7637 if (!checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase))
7639 assert (isThumbTwo());
7640 Inst.setOpcode(ARM::t2STMDB_UPD);
7641 // Add the base register and writeback operands.
7642 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7643 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7647 // If we can use the 16-bit encoding and the user didn't explicitly
7648 // request the 32-bit variant, transform it here.
7649 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7650 (unsigned)Inst.getOperand(1).getImm() <= 255 &&
7651 ((!inITBlock() && Inst.getOperand(2).getImm() == ARMCC::AL &&
7652 Inst.getOperand(4).getReg() == ARM::CPSR) ||
7653 (inITBlock() && Inst.getOperand(4).getReg() == 0)) &&
7654 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7655 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7656 // The operands aren't in the same order for tMOVi8...
7658 TmpInst.setOpcode(ARM::tMOVi8);
7659 TmpInst.addOperand(Inst.getOperand(0));
7660 TmpInst.addOperand(Inst.getOperand(4));
7661 TmpInst.addOperand(Inst.getOperand(1));
7662 TmpInst.addOperand(Inst.getOperand(2));
7663 TmpInst.addOperand(Inst.getOperand(3));
7670 // If we can use the 16-bit encoding and the user didn't explicitly
7671 // request the 32-bit variant, transform it here.
7672 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7673 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7674 Inst.getOperand(2).getImm() == ARMCC::AL &&
7675 Inst.getOperand(4).getReg() == ARM::CPSR &&
7676 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7677 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7678 // The operands aren't the same for tMOV[S]r... (no cc_out)
7680 TmpInst.setOpcode(Inst.getOperand(4).getReg() ? ARM::tMOVSr : ARM::tMOVr);
7681 TmpInst.addOperand(Inst.getOperand(0));
7682 TmpInst.addOperand(Inst.getOperand(1));
7683 TmpInst.addOperand(Inst.getOperand(2));
7684 TmpInst.addOperand(Inst.getOperand(3));
7694 // If we can use the 16-bit encoding and the user didn't explicitly
7695 // request the 32-bit variant, transform it here.
7696 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7697 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7698 Inst.getOperand(2).getImm() == 0 &&
7699 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7700 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7702 switch (Inst.getOpcode()) {
7703 default: llvm_unreachable("Illegal opcode!");
7704 case ARM::t2SXTH: NewOpc = ARM::tSXTH; break;
7705 case ARM::t2SXTB: NewOpc = ARM::tSXTB; break;
7706 case ARM::t2UXTH: NewOpc = ARM::tUXTH; break;
7707 case ARM::t2UXTB: NewOpc = ARM::tUXTB; break;
7709 // The operands aren't the same for thumb1 (no rotate operand).
7711 TmpInst.setOpcode(NewOpc);
7712 TmpInst.addOperand(Inst.getOperand(0));
7713 TmpInst.addOperand(Inst.getOperand(1));
7714 TmpInst.addOperand(Inst.getOperand(3));
7715 TmpInst.addOperand(Inst.getOperand(4));
7722 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(2).getImm());
7723 // rrx shifts and asr/lsr of #32 is encoded as 0
7724 if (SOpc == ARM_AM::rrx || SOpc == ARM_AM::asr || SOpc == ARM_AM::lsr)
7726 if (ARM_AM::getSORegOffset(Inst.getOperand(2).getImm()) == 0) {
7727 // Shifting by zero is accepted as a vanilla 'MOVr'
7729 TmpInst.setOpcode(ARM::MOVr);
7730 TmpInst.addOperand(Inst.getOperand(0));
7731 TmpInst.addOperand(Inst.getOperand(1));
7732 TmpInst.addOperand(Inst.getOperand(3));
7733 TmpInst.addOperand(Inst.getOperand(4));
7734 TmpInst.addOperand(Inst.getOperand(5));
7747 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(3).getImm());
7748 if (SOpc == ARM_AM::rrx) return false;
7749 switch (Inst.getOpcode()) {
7750 default: llvm_unreachable("unexpected opcode!");
7751 case ARM::ANDrsi: newOpc = ARM::ANDrr; break;
7752 case ARM::ORRrsi: newOpc = ARM::ORRrr; break;
7753 case ARM::EORrsi: newOpc = ARM::EORrr; break;
7754 case ARM::BICrsi: newOpc = ARM::BICrr; break;
7755 case ARM::SUBrsi: newOpc = ARM::SUBrr; break;
7756 case ARM::ADDrsi: newOpc = ARM::ADDrr; break;
7758 // If the shift is by zero, use the non-shifted instruction definition.
7759 // The exception is for right shifts, where 0 == 32
7760 if (ARM_AM::getSORegOffset(Inst.getOperand(3).getImm()) == 0 &&
7761 !(SOpc == ARM_AM::lsr || SOpc == ARM_AM::asr)) {
7763 TmpInst.setOpcode(newOpc);
7764 TmpInst.addOperand(Inst.getOperand(0));
7765 TmpInst.addOperand(Inst.getOperand(1));
7766 TmpInst.addOperand(Inst.getOperand(2));
7767 TmpInst.addOperand(Inst.getOperand(4));
7768 TmpInst.addOperand(Inst.getOperand(5));
7769 TmpInst.addOperand(Inst.getOperand(6));
7777 // The mask bits for all but the first condition are represented as
7778 // the low bit of the condition code value implies 't'. We currently
7779 // always have 1 implies 't', so XOR toggle the bits if the low bit
7780 // of the condition code is zero.
7781 MCOperand &MO = Inst.getOperand(1);
7782 unsigned Mask = MO.getImm();
7783 unsigned OrigMask = Mask;
7784 unsigned TZ = countTrailingZeros(Mask);
7785 if ((Inst.getOperand(0).getImm() & 1) == 0) {
7786 assert(Mask && TZ <= 3 && "illegal IT mask value!");
7787 Mask ^= (0xE << TZ) & 0xF;
7791 // Set up the IT block state according to the IT instruction we just
7793 assert(!inITBlock() && "nested IT blocks?!");
7794 ITState.Cond = ARMCC::CondCodes(Inst.getOperand(0).getImm());
7795 ITState.Mask = OrigMask; // Use the original mask, not the updated one.
7796 ITState.CurPosition = 0;
7797 ITState.FirstCond = true;
7807 // Assemblers should use the narrow encodings of these instructions when permissible.
7808 if ((isARMLowRegister(Inst.getOperand(1).getReg()) &&
7809 isARMLowRegister(Inst.getOperand(2).getReg())) &&
7810 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7811 ((!inITBlock() && Inst.getOperand(5).getReg() == ARM::CPSR) ||
7812 (inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR)) &&
7813 (!static_cast<ARMOperand*>(Operands[3])->isToken() ||
7814 !static_cast<ARMOperand*>(Operands[3])->getToken().equals_lower(".w"))) {
7816 switch (Inst.getOpcode()) {
7817 default: llvm_unreachable("unexpected opcode");
7818 case ARM::t2LSLrr: NewOpc = ARM::tLSLrr; break;
7819 case ARM::t2LSRrr: NewOpc = ARM::tLSRrr; break;
7820 case ARM::t2ASRrr: NewOpc = ARM::tASRrr; break;
7821 case ARM::t2SBCrr: NewOpc = ARM::tSBC; break;
7822 case ARM::t2RORrr: NewOpc = ARM::tROR; break;
7823 case ARM::t2BICrr: NewOpc = ARM::tBIC; break;
7826 TmpInst.setOpcode(NewOpc);
7827 TmpInst.addOperand(Inst.getOperand(0));
7828 TmpInst.addOperand(Inst.getOperand(5));
7829 TmpInst.addOperand(Inst.getOperand(1));
7830 TmpInst.addOperand(Inst.getOperand(2));
7831 TmpInst.addOperand(Inst.getOperand(3));
7832 TmpInst.addOperand(Inst.getOperand(4));
7843 // Assemblers should use the narrow encodings of these instructions when permissible.
7844 // These instructions are special in that they are commutable, so shorter encodings
7845 // are available more often.
7846 if ((isARMLowRegister(Inst.getOperand(1).getReg()) &&
7847 isARMLowRegister(Inst.getOperand(2).getReg())) &&
7848 (Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() ||
7849 Inst.getOperand(0).getReg() == Inst.getOperand(2).getReg()) &&
7850 ((!inITBlock() && Inst.getOperand(5).getReg() == ARM::CPSR) ||
7851 (inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR)) &&
7852 (!static_cast<ARMOperand*>(Operands[3])->isToken() ||
7853 !static_cast<ARMOperand*>(Operands[3])->getToken().equals_lower(".w"))) {
7855 switch (Inst.getOpcode()) {
7856 default: llvm_unreachable("unexpected opcode");
7857 case ARM::t2ADCrr: NewOpc = ARM::tADC; break;
7858 case ARM::t2ANDrr: NewOpc = ARM::tAND; break;
7859 case ARM::t2EORrr: NewOpc = ARM::tEOR; break;
7860 case ARM::t2ORRrr: NewOpc = ARM::tORR; break;
7863 TmpInst.setOpcode(NewOpc);
7864 TmpInst.addOperand(Inst.getOperand(0));
7865 TmpInst.addOperand(Inst.getOperand(5));
7866 if (Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg()) {
7867 TmpInst.addOperand(Inst.getOperand(1));
7868 TmpInst.addOperand(Inst.getOperand(2));
7870 TmpInst.addOperand(Inst.getOperand(2));
7871 TmpInst.addOperand(Inst.getOperand(1));
7873 TmpInst.addOperand(Inst.getOperand(3));
7874 TmpInst.addOperand(Inst.getOperand(4));
7884 unsigned ARMAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
7885 // 16-bit thumb arithmetic instructions either require or preclude the 'S'
7886 // suffix depending on whether they're in an IT block or not.
7887 unsigned Opc = Inst.getOpcode();
7888 const MCInstrDesc &MCID = MII.get(Opc);
7889 if (MCID.TSFlags & ARMII::ThumbArithFlagSetting) {
7890 assert(MCID.hasOptionalDef() &&
7891 "optionally flag setting instruction missing optional def operand");
7892 assert(MCID.NumOperands == Inst.getNumOperands() &&
7893 "operand count mismatch!");
7894 // Find the optional-def operand (cc_out).
7897 !MCID.OpInfo[OpNo].isOptionalDef() && OpNo < MCID.NumOperands;
7900 // If we're parsing Thumb1, reject it completely.
7901 if (isThumbOne() && Inst.getOperand(OpNo).getReg() != ARM::CPSR)
7902 return Match_MnemonicFail;
7903 // If we're parsing Thumb2, which form is legal depends on whether we're
7905 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() != ARM::CPSR &&
7907 return Match_RequiresITBlock;
7908 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() == ARM::CPSR &&
7910 return Match_RequiresNotITBlock;
7912 // Some high-register supporting Thumb1 encodings only allow both registers
7913 // to be from r0-r7 when in Thumb2.
7914 else if (Opc == ARM::tADDhirr && isThumbOne() &&
7915 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7916 isARMLowRegister(Inst.getOperand(2).getReg()))
7917 return Match_RequiresThumb2;
7918 // Others only require ARMv6 or later.
7919 else if (Opc == ARM::tMOVr && isThumbOne() && !hasV6Ops() &&
7920 isARMLowRegister(Inst.getOperand(0).getReg()) &&
7921 isARMLowRegister(Inst.getOperand(1).getReg()))
7922 return Match_RequiresV6;
7923 return Match_Success;
7926 static const char *getSubtargetFeatureName(unsigned Val);
7928 MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
7929 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
7930 MCStreamer &Out, unsigned &ErrorInfo,
7931 bool MatchingInlineAsm) {
7933 unsigned MatchResult;
7935 MatchResult = MatchInstructionImpl(Operands, Inst, ErrorInfo,
7937 switch (MatchResult) {
7940 // Context sensitive operand constraints aren't handled by the matcher,
7941 // so check them here.
7942 if (validateInstruction(Inst, Operands)) {
7943 // Still progress the IT block, otherwise one wrong condition causes
7944 // nasty cascading errors.
7945 forwardITPosition();
7949 { // processInstruction() updates inITBlock state, we need to save it away
7950 bool wasInITBlock = inITBlock();
7952 // Some instructions need post-processing to, for example, tweak which
7953 // encoding is selected. Loop on it while changes happen so the
7954 // individual transformations can chain off each other. E.g.,
7955 // tPOP(r8)->t2LDMIA_UPD(sp,r8)->t2STR_POST(sp,r8)
7956 while (processInstruction(Inst, Operands))
7959 // Only after the instruction is fully processed, we can validate it
7960 if (wasInITBlock && hasV8Ops() && isThumb() &&
7961 !isV8EligibleForIT(&Inst)) {
7962 Warning(IDLoc, "deprecated instruction in IT block");
7966 // Only move forward at the very end so that everything in validate
7967 // and process gets a consistent answer about whether we're in an IT
7969 forwardITPosition();
7971 // ITasm is an ARM mode pseudo-instruction that just sets the ITblock and
7972 // doesn't actually encode.
7973 if (Inst.getOpcode() == ARM::ITasm)
7977 Out.EmitInstruction(Inst, STI);
7979 case Match_MissingFeature: {
7980 assert(ErrorInfo && "Unknown missing feature!");
7981 // Special case the error message for the very common case where only
7982 // a single subtarget feature is missing (Thumb vs. ARM, e.g.).
7983 std::string Msg = "instruction requires:";
7985 for (unsigned i = 0; i < (sizeof(ErrorInfo)*8-1); ++i) {
7986 if (ErrorInfo & Mask) {
7988 Msg += getSubtargetFeatureName(ErrorInfo & Mask);
7992 return Error(IDLoc, Msg);
7994 case Match_InvalidOperand: {
7995 SMLoc ErrorLoc = IDLoc;
7996 if (ErrorInfo != ~0U) {
7997 if (ErrorInfo >= Operands.size())
7998 return Error(IDLoc, "too few operands for instruction");
8000 ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
8001 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
8004 return Error(ErrorLoc, "invalid operand for instruction");
8006 case Match_MnemonicFail:
8007 return Error(IDLoc, "invalid instruction",
8008 ((ARMOperand*)Operands[0])->getLocRange());
8009 case Match_RequiresNotITBlock:
8010 return Error(IDLoc, "flag setting instruction only valid outside IT block");
8011 case Match_RequiresITBlock:
8012 return Error(IDLoc, "instruction only valid inside IT block");
8013 case Match_RequiresV6:
8014 return Error(IDLoc, "instruction variant requires ARMv6 or later");
8015 case Match_RequiresThumb2:
8016 return Error(IDLoc, "instruction variant requires Thumb2");
8017 case Match_ImmRange0_15: {
8018 SMLoc ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
8019 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
8020 return Error(ErrorLoc, "immediate operand must be in the range [0,15]");
8022 case Match_ImmRange0_239: {
8023 SMLoc ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
8024 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
8025 return Error(ErrorLoc, "immediate operand must be in the range [0,239]");
8029 llvm_unreachable("Implement any new match types added!");
8032 /// parseDirective parses the arm specific directives
8033 bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) {
8034 StringRef IDVal = DirectiveID.getIdentifier();
8035 if (IDVal == ".word")
8036 return parseDirectiveWord(4, DirectiveID.getLoc());
8037 else if (IDVal == ".thumb")
8038 return parseDirectiveThumb(DirectiveID.getLoc());
8039 else if (IDVal == ".arm")
8040 return parseDirectiveARM(DirectiveID.getLoc());
8041 else if (IDVal == ".thumb_func")
8042 return parseDirectiveThumbFunc(DirectiveID.getLoc());
8043 else if (IDVal == ".code")
8044 return parseDirectiveCode(DirectiveID.getLoc());
8045 else if (IDVal == ".syntax")
8046 return parseDirectiveSyntax(DirectiveID.getLoc());
8047 else if (IDVal == ".unreq")
8048 return parseDirectiveUnreq(DirectiveID.getLoc());
8049 else if (IDVal == ".arch")
8050 return parseDirectiveArch(DirectiveID.getLoc());
8051 else if (IDVal == ".eabi_attribute")
8052 return parseDirectiveEabiAttr(DirectiveID.getLoc());
8053 else if (IDVal == ".cpu")
8054 return parseDirectiveCPU(DirectiveID.getLoc());
8055 else if (IDVal == ".fpu")
8056 return parseDirectiveFPU(DirectiveID.getLoc());
8057 else if (IDVal == ".fnstart")
8058 return parseDirectiveFnStart(DirectiveID.getLoc());
8059 else if (IDVal == ".fnend")
8060 return parseDirectiveFnEnd(DirectiveID.getLoc());
8061 else if (IDVal == ".cantunwind")
8062 return parseDirectiveCantUnwind(DirectiveID.getLoc());
8063 else if (IDVal == ".personality")
8064 return parseDirectivePersonality(DirectiveID.getLoc());
8065 else if (IDVal == ".handlerdata")
8066 return parseDirectiveHandlerData(DirectiveID.getLoc());
8067 else if (IDVal == ".setfp")
8068 return parseDirectiveSetFP(DirectiveID.getLoc());
8069 else if (IDVal == ".pad")
8070 return parseDirectivePad(DirectiveID.getLoc());
8071 else if (IDVal == ".save")
8072 return parseDirectiveRegSave(DirectiveID.getLoc(), false);
8073 else if (IDVal == ".vsave")
8074 return parseDirectiveRegSave(DirectiveID.getLoc(), true);
8075 else if (IDVal == ".inst")
8076 return parseDirectiveInst(DirectiveID.getLoc());
8077 else if (IDVal == ".inst.n")
8078 return parseDirectiveInst(DirectiveID.getLoc(), 'n');
8079 else if (IDVal == ".inst.w")
8080 return parseDirectiveInst(DirectiveID.getLoc(), 'w');
8081 else if (IDVal == ".ltorg" || IDVal == ".pool")
8082 return parseDirectiveLtorg(DirectiveID.getLoc());
8083 else if (IDVal == ".even")
8084 return parseDirectiveEven(DirectiveID.getLoc());
8085 else if (IDVal == ".personalityindex")
8086 return parseDirectivePersonalityIndex(DirectiveID.getLoc());
8087 else if (IDVal == ".unwind_raw")
8088 return parseDirectiveUnwindRaw(DirectiveID.getLoc());
8089 else if (IDVal == ".tlsdescseq")
8090 return parseDirectiveTLSDescSeq(DirectiveID.getLoc());
8091 else if (IDVal == ".movsp")
8092 return parseDirectiveMovSP(DirectiveID.getLoc());
8096 /// parseDirectiveWord
8097 /// ::= .word [ expression (, expression)* ]
8098 bool ARMAsmParser::parseDirectiveWord(unsigned Size, SMLoc L) {
8099 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8101 const MCExpr *Value;
8102 if (getParser().parseExpression(Value)) {
8103 Parser.eatToEndOfStatement();
8107 getParser().getStreamer().EmitValue(Value, Size);
8109 if (getLexer().is(AsmToken::EndOfStatement))
8112 // FIXME: Improve diagnostic.
8113 if (getLexer().isNot(AsmToken::Comma)) {
8114 Error(L, "unexpected token in directive");
8125 /// parseDirectiveThumb
8127 bool ARMAsmParser::parseDirectiveThumb(SMLoc L) {
8128 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8129 Error(L, "unexpected token in directive");
8135 Error(L, "target does not support Thumb mode");
8141 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
8145 /// parseDirectiveARM
8147 bool ARMAsmParser::parseDirectiveARM(SMLoc L) {
8148 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8149 Error(L, "unexpected token in directive");
8155 Error(L, "target does not support ARM mode");
8161 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
8165 void ARMAsmParser::onLabelParsed(MCSymbol *Symbol) {
8166 if (NextSymbolIsThumb) {
8167 getParser().getStreamer().EmitThumbFunc(Symbol);
8168 NextSymbolIsThumb = false;
8172 /// parseDirectiveThumbFunc
8173 /// ::= .thumbfunc symbol_name
8174 bool ARMAsmParser::parseDirectiveThumbFunc(SMLoc L) {
8175 const MCAsmInfo *MAI = getParser().getStreamer().getContext().getAsmInfo();
8176 bool isMachO = MAI->hasSubsectionsViaSymbols();
8178 // Darwin asm has (optionally) function name after .thumb_func direction
8181 const AsmToken &Tok = Parser.getTok();
8182 if (Tok.isNot(AsmToken::EndOfStatement)) {
8183 if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String)) {
8184 Error(L, "unexpected token in .thumb_func directive");
8189 getParser().getContext().GetOrCreateSymbol(Tok.getIdentifier());
8190 getParser().getStreamer().EmitThumbFunc(Func);
8191 Parser.Lex(); // Consume the identifier token.
8196 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8197 Error(L, "unexpected token in directive");
8201 NextSymbolIsThumb = true;
8205 /// parseDirectiveSyntax
8206 /// ::= .syntax unified | divided
8207 bool ARMAsmParser::parseDirectiveSyntax(SMLoc L) {
8208 const AsmToken &Tok = Parser.getTok();
8209 if (Tok.isNot(AsmToken::Identifier)) {
8210 Error(L, "unexpected token in .syntax directive");
8214 StringRef Mode = Tok.getString();
8215 if (Mode == "unified" || Mode == "UNIFIED") {
8217 } else if (Mode == "divided" || Mode == "DIVIDED") {
8218 Error(L, "'.syntax divided' arm asssembly not supported");
8221 Error(L, "unrecognized syntax mode in .syntax directive");
8225 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8226 Error(Parser.getTok().getLoc(), "unexpected token in directive");
8231 // TODO tell the MC streamer the mode
8232 // getParser().getStreamer().Emit???();
8236 /// parseDirectiveCode
8237 /// ::= .code 16 | 32
8238 bool ARMAsmParser::parseDirectiveCode(SMLoc L) {
8239 const AsmToken &Tok = Parser.getTok();
8240 if (Tok.isNot(AsmToken::Integer)) {
8241 Error(L, "unexpected token in .code directive");
8244 int64_t Val = Parser.getTok().getIntVal();
8245 if (Val != 16 && Val != 32) {
8246 Error(L, "invalid operand to .code directive");
8251 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8252 Error(Parser.getTok().getLoc(), "unexpected token in directive");
8259 Error(L, "target does not support Thumb mode");
8265 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
8268 Error(L, "target does not support ARM mode");
8274 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
8280 /// parseDirectiveReq
8281 /// ::= name .req registername
8282 bool ARMAsmParser::parseDirectiveReq(StringRef Name, SMLoc L) {
8283 Parser.Lex(); // Eat the '.req' token.
8285 SMLoc SRegLoc, ERegLoc;
8286 if (ParseRegister(Reg, SRegLoc, ERegLoc)) {
8287 Parser.eatToEndOfStatement();
8288 Error(SRegLoc, "register name expected");
8292 // Shouldn't be anything else.
8293 if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
8294 Parser.eatToEndOfStatement();
8295 Error(Parser.getTok().getLoc(), "unexpected input in .req directive.");
8299 Parser.Lex(); // Consume the EndOfStatement
8301 if (RegisterReqs.GetOrCreateValue(Name, Reg).getValue() != Reg) {
8302 Error(SRegLoc, "redefinition of '" + Name + "' does not match original.");
8309 /// parseDirectiveUneq
8310 /// ::= .unreq registername
8311 bool ARMAsmParser::parseDirectiveUnreq(SMLoc L) {
8312 if (Parser.getTok().isNot(AsmToken::Identifier)) {
8313 Parser.eatToEndOfStatement();
8314 Error(L, "unexpected input in .unreq directive.");
8317 RegisterReqs.erase(Parser.getTok().getIdentifier());
8318 Parser.Lex(); // Eat the identifier.
8322 /// parseDirectiveArch
8324 bool ARMAsmParser::parseDirectiveArch(SMLoc L) {
8325 StringRef Arch = getParser().parseStringToEndOfStatement().trim();
8327 unsigned ID = StringSwitch<unsigned>(Arch)
8328 #define ARM_ARCH_NAME(NAME, ID, DEFAULT_CPU_NAME, DEFAULT_CPU_ARCH) \
8329 .Case(NAME, ARM::ID)
8330 #define ARM_ARCH_ALIAS(NAME, ID) \
8331 .Case(NAME, ARM::ID)
8332 #include "MCTargetDesc/ARMArchName.def"
8333 .Default(ARM::INVALID_ARCH);
8335 if (ID == ARM::INVALID_ARCH) {
8336 Error(L, "Unknown arch name");
8340 getTargetStreamer().emitArch(ID);
8344 /// parseDirectiveEabiAttr
8345 /// ::= .eabi_attribute int, int [, "str"]
8346 /// ::= .eabi_attribute Tag_name, int [, "str"]
8347 bool ARMAsmParser::parseDirectiveEabiAttr(SMLoc L) {
8351 TagLoc = Parser.getTok().getLoc();
8352 if (Parser.getTok().is(AsmToken::Identifier)) {
8353 StringRef Name = Parser.getTok().getIdentifier();
8354 Tag = ARMBuildAttrs::AttrTypeFromString(Name);
8356 Error(TagLoc, "attribute name not recognised: " + Name);
8357 Parser.eatToEndOfStatement();
8362 const MCExpr *AttrExpr;
8364 TagLoc = Parser.getTok().getLoc();
8365 if (Parser.parseExpression(AttrExpr)) {
8366 Parser.eatToEndOfStatement();
8370 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(AttrExpr);
8372 Error(TagLoc, "expected numeric constant");
8373 Parser.eatToEndOfStatement();
8377 Tag = CE->getValue();
8380 if (Parser.getTok().isNot(AsmToken::Comma)) {
8381 Error(Parser.getTok().getLoc(), "comma expected");
8382 Parser.eatToEndOfStatement();
8385 Parser.Lex(); // skip comma
8387 StringRef StringValue = "";
8388 bool IsStringValue = false;
8390 int64_t IntegerValue = 0;
8391 bool IsIntegerValue = false;
8393 if (Tag == ARMBuildAttrs::CPU_raw_name || Tag == ARMBuildAttrs::CPU_name)
8394 IsStringValue = true;
8395 else if (Tag == ARMBuildAttrs::compatibility) {
8396 IsStringValue = true;
8397 IsIntegerValue = true;
8398 } else if (Tag < 32 || Tag % 2 == 0)
8399 IsIntegerValue = true;
8400 else if (Tag % 2 == 1)
8401 IsStringValue = true;
8403 llvm_unreachable("invalid tag type");
8405 if (IsIntegerValue) {
8406 const MCExpr *ValueExpr;
8407 SMLoc ValueExprLoc = Parser.getTok().getLoc();
8408 if (Parser.parseExpression(ValueExpr)) {
8409 Parser.eatToEndOfStatement();
8413 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ValueExpr);
8415 Error(ValueExprLoc, "expected numeric constant");
8416 Parser.eatToEndOfStatement();
8420 IntegerValue = CE->getValue();
8423 if (Tag == ARMBuildAttrs::compatibility) {
8424 if (Parser.getTok().isNot(AsmToken::Comma))
8425 IsStringValue = false;
8430 if (IsStringValue) {
8431 if (Parser.getTok().isNot(AsmToken::String)) {
8432 Error(Parser.getTok().getLoc(), "bad string constant");
8433 Parser.eatToEndOfStatement();
8437 StringValue = Parser.getTok().getStringContents();
8441 if (IsIntegerValue && IsStringValue) {
8442 assert(Tag == ARMBuildAttrs::compatibility);
8443 getTargetStreamer().emitIntTextAttribute(Tag, IntegerValue, StringValue);
8444 } else if (IsIntegerValue)
8445 getTargetStreamer().emitAttribute(Tag, IntegerValue);
8446 else if (IsStringValue)
8447 getTargetStreamer().emitTextAttribute(Tag, StringValue);
8451 /// parseDirectiveCPU
8453 bool ARMAsmParser::parseDirectiveCPU(SMLoc L) {
8454 StringRef CPU = getParser().parseStringToEndOfStatement().trim();
8455 getTargetStreamer().emitTextAttribute(ARMBuildAttrs::CPU_name, CPU);
8459 /// parseDirectiveFPU
8461 bool ARMAsmParser::parseDirectiveFPU(SMLoc L) {
8462 StringRef FPU = getParser().parseStringToEndOfStatement().trim();
8464 unsigned ID = StringSwitch<unsigned>(FPU)
8465 #define ARM_FPU_NAME(NAME, ID) .Case(NAME, ARM::ID)
8466 #include "ARMFPUName.def"
8467 .Default(ARM::INVALID_FPU);
8469 if (ID == ARM::INVALID_FPU) {
8470 Error(L, "Unknown FPU name");
8474 getTargetStreamer().emitFPU(ID);
8478 /// parseDirectiveFnStart
8480 bool ARMAsmParser::parseDirectiveFnStart(SMLoc L) {
8481 if (UC.hasFnStart()) {
8482 Error(L, ".fnstart starts before the end of previous one");
8483 UC.emitFnStartLocNotes();
8487 // Reset the unwind directives parser state
8490 getTargetStreamer().emitFnStart();
8492 UC.recordFnStart(L);
8496 /// parseDirectiveFnEnd
8498 bool ARMAsmParser::parseDirectiveFnEnd(SMLoc L) {
8499 // Check the ordering of unwind directives
8500 if (!UC.hasFnStart()) {
8501 Error(L, ".fnstart must precede .fnend directive");
8505 // Reset the unwind directives parser state
8506 getTargetStreamer().emitFnEnd();
8512 /// parseDirectiveCantUnwind
8514 bool ARMAsmParser::parseDirectiveCantUnwind(SMLoc L) {
8515 UC.recordCantUnwind(L);
8517 // Check the ordering of unwind directives
8518 if (!UC.hasFnStart()) {
8519 Error(L, ".fnstart must precede .cantunwind directive");
8522 if (UC.hasHandlerData()) {
8523 Error(L, ".cantunwind can't be used with .handlerdata directive");
8524 UC.emitHandlerDataLocNotes();
8527 if (UC.hasPersonality()) {
8528 Error(L, ".cantunwind can't be used with .personality directive");
8529 UC.emitPersonalityLocNotes();
8533 getTargetStreamer().emitCantUnwind();
8537 /// parseDirectivePersonality
8538 /// ::= .personality name
8539 bool ARMAsmParser::parseDirectivePersonality(SMLoc L) {
8540 bool HasExistingPersonality = UC.hasPersonality();
8542 UC.recordPersonality(L);
8544 // Check the ordering of unwind directives
8545 if (!UC.hasFnStart()) {
8546 Error(L, ".fnstart must precede .personality directive");
8549 if (UC.cantUnwind()) {
8550 Error(L, ".personality can't be used with .cantunwind directive");
8551 UC.emitCantUnwindLocNotes();
8554 if (UC.hasHandlerData()) {
8555 Error(L, ".personality must precede .handlerdata directive");
8556 UC.emitHandlerDataLocNotes();
8559 if (HasExistingPersonality) {
8560 Parser.eatToEndOfStatement();
8561 Error(L, "multiple personality directives");
8562 UC.emitPersonalityLocNotes();
8566 // Parse the name of the personality routine
8567 if (Parser.getTok().isNot(AsmToken::Identifier)) {
8568 Parser.eatToEndOfStatement();
8569 Error(L, "unexpected input in .personality directive.");
8572 StringRef Name(Parser.getTok().getIdentifier());
8575 MCSymbol *PR = getParser().getContext().GetOrCreateSymbol(Name);
8576 getTargetStreamer().emitPersonality(PR);
8580 /// parseDirectiveHandlerData
8581 /// ::= .handlerdata
8582 bool ARMAsmParser::parseDirectiveHandlerData(SMLoc L) {
8583 UC.recordHandlerData(L);
8585 // Check the ordering of unwind directives
8586 if (!UC.hasFnStart()) {
8587 Error(L, ".fnstart must precede .personality directive");
8590 if (UC.cantUnwind()) {
8591 Error(L, ".handlerdata can't be used with .cantunwind directive");
8592 UC.emitCantUnwindLocNotes();
8596 getTargetStreamer().emitHandlerData();
8600 /// parseDirectiveSetFP
8601 /// ::= .setfp fpreg, spreg [, offset]
8602 bool ARMAsmParser::parseDirectiveSetFP(SMLoc L) {
8603 // Check the ordering of unwind directives
8604 if (!UC.hasFnStart()) {
8605 Error(L, ".fnstart must precede .setfp directive");
8608 if (UC.hasHandlerData()) {
8609 Error(L, ".setfp must precede .handlerdata directive");
8614 SMLoc FPRegLoc = Parser.getTok().getLoc();
8615 int FPReg = tryParseRegister();
8617 Error(FPRegLoc, "frame pointer register expected");
8622 if (Parser.getTok().isNot(AsmToken::Comma)) {
8623 Error(Parser.getTok().getLoc(), "comma expected");
8626 Parser.Lex(); // skip comma
8629 SMLoc SPRegLoc = Parser.getTok().getLoc();
8630 int SPReg = tryParseRegister();
8632 Error(SPRegLoc, "stack pointer register expected");
8636 if (SPReg != ARM::SP && SPReg != UC.getFPReg()) {
8637 Error(SPRegLoc, "register should be either $sp or the latest fp register");
8641 // Update the frame pointer register
8642 UC.saveFPReg(FPReg);
8646 if (Parser.getTok().is(AsmToken::Comma)) {
8647 Parser.Lex(); // skip comma
8649 if (Parser.getTok().isNot(AsmToken::Hash) &&
8650 Parser.getTok().isNot(AsmToken::Dollar)) {
8651 Error(Parser.getTok().getLoc(), "'#' expected");
8654 Parser.Lex(); // skip hash token.
8656 const MCExpr *OffsetExpr;
8657 SMLoc ExLoc = Parser.getTok().getLoc();
8659 if (getParser().parseExpression(OffsetExpr, EndLoc)) {
8660 Error(ExLoc, "malformed setfp offset");
8663 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8665 Error(ExLoc, "setfp offset must be an immediate");
8669 Offset = CE->getValue();
8672 getTargetStreamer().emitSetFP(static_cast<unsigned>(FPReg),
8673 static_cast<unsigned>(SPReg), Offset);
8679 bool ARMAsmParser::parseDirectivePad(SMLoc L) {
8680 // Check the ordering of unwind directives
8681 if (!UC.hasFnStart()) {
8682 Error(L, ".fnstart must precede .pad directive");
8685 if (UC.hasHandlerData()) {
8686 Error(L, ".pad must precede .handlerdata directive");
8691 if (Parser.getTok().isNot(AsmToken::Hash) &&
8692 Parser.getTok().isNot(AsmToken::Dollar)) {
8693 Error(Parser.getTok().getLoc(), "'#' expected");
8696 Parser.Lex(); // skip hash token.
8698 const MCExpr *OffsetExpr;
8699 SMLoc ExLoc = Parser.getTok().getLoc();
8701 if (getParser().parseExpression(OffsetExpr, EndLoc)) {
8702 Error(ExLoc, "malformed pad offset");
8705 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8707 Error(ExLoc, "pad offset must be an immediate");
8711 getTargetStreamer().emitPad(CE->getValue());
8715 /// parseDirectiveRegSave
8716 /// ::= .save { registers }
8717 /// ::= .vsave { registers }
8718 bool ARMAsmParser::parseDirectiveRegSave(SMLoc L, bool IsVector) {
8719 // Check the ordering of unwind directives
8720 if (!UC.hasFnStart()) {
8721 Error(L, ".fnstart must precede .save or .vsave directives");
8724 if (UC.hasHandlerData()) {
8725 Error(L, ".save or .vsave must precede .handlerdata directive");
8729 // RAII object to make sure parsed operands are deleted.
8730 struct CleanupObject {
8731 SmallVector<MCParsedAsmOperand *, 1> Operands;
8733 for (unsigned I = 0, E = Operands.size(); I != E; ++I)
8738 // Parse the register list
8739 if (parseRegisterList(CO.Operands))
8741 ARMOperand *Op = (ARMOperand*)CO.Operands[0];
8742 if (!IsVector && !Op->isRegList()) {
8743 Error(L, ".save expects GPR registers");
8746 if (IsVector && !Op->isDPRRegList()) {
8747 Error(L, ".vsave expects DPR registers");
8751 getTargetStreamer().emitRegSave(Op->getRegList(), IsVector);
8755 /// parseDirectiveInst
8756 /// ::= .inst opcode [, ...]
8757 /// ::= .inst.n opcode [, ...]
8758 /// ::= .inst.w opcode [, ...]
8759 bool ARMAsmParser::parseDirectiveInst(SMLoc Loc, char Suffix) {
8771 Parser.eatToEndOfStatement();
8772 Error(Loc, "cannot determine Thumb instruction size, "
8773 "use inst.n/inst.w instead");
8778 Parser.eatToEndOfStatement();
8779 Error(Loc, "width suffixes are invalid in ARM mode");
8785 if (getLexer().is(AsmToken::EndOfStatement)) {
8786 Parser.eatToEndOfStatement();
8787 Error(Loc, "expected expression following directive");
8794 if (getParser().parseExpression(Expr)) {
8795 Error(Loc, "expected expression");
8799 const MCConstantExpr *Value = dyn_cast_or_null<MCConstantExpr>(Expr);
8801 Error(Loc, "expected constant expression");
8807 if (Value->getValue() > 0xffff) {
8808 Error(Loc, "inst.n operand is too big, use inst.w instead");
8813 if (Value->getValue() > 0xffffffff) {
8815 StringRef(Suffix ? "inst.w" : "inst") + " operand is too big");
8820 llvm_unreachable("only supported widths are 2 and 4");
8823 getTargetStreamer().emitInst(Value->getValue(), Suffix);
8825 if (getLexer().is(AsmToken::EndOfStatement))
8828 if (getLexer().isNot(AsmToken::Comma)) {
8829 Error(Loc, "unexpected token in directive");
8840 /// parseDirectiveLtorg
8841 /// ::= .ltorg | .pool
8842 bool ARMAsmParser::parseDirectiveLtorg(SMLoc L) {
8843 MCStreamer &Streamer = getParser().getStreamer();
8844 const MCSection *Section = Streamer.getCurrentSection().first;
8846 if (ConstantPool *CP = getConstantPool(Section)) {
8848 CP->emitEntries(Streamer);
8853 bool ARMAsmParser::parseDirectiveEven(SMLoc L) {
8854 const MCSection *Section = getStreamer().getCurrentSection().first;
8856 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8857 TokError("unexpected token in directive");
8862 getStreamer().InitSections();
8863 Section = getStreamer().getCurrentSection().first;
8866 if (Section->UseCodeAlign())
8867 getStreamer().EmitCodeAlignment(2, 0);
8869 getStreamer().EmitValueToAlignment(2, 0, 1, 0);
8874 /// parseDirectivePersonalityIndex
8875 /// ::= .personalityindex index
8876 bool ARMAsmParser::parseDirectivePersonalityIndex(SMLoc L) {
8877 bool HasExistingPersonality = UC.hasPersonality();
8879 UC.recordPersonalityIndex(L);
8881 if (!UC.hasFnStart()) {
8882 Parser.eatToEndOfStatement();
8883 Error(L, ".fnstart must precede .personalityindex directive");
8886 if (UC.cantUnwind()) {
8887 Parser.eatToEndOfStatement();
8888 Error(L, ".personalityindex cannot be used with .cantunwind");
8889 UC.emitCantUnwindLocNotes();
8892 if (UC.hasHandlerData()) {
8893 Parser.eatToEndOfStatement();
8894 Error(L, ".personalityindex must precede .handlerdata directive");
8895 UC.emitHandlerDataLocNotes();
8898 if (HasExistingPersonality) {
8899 Parser.eatToEndOfStatement();
8900 Error(L, "multiple personality directives");
8901 UC.emitPersonalityLocNotes();
8905 const MCExpr *IndexExpression;
8906 SMLoc IndexLoc = Parser.getTok().getLoc();
8907 if (Parser.parseExpression(IndexExpression)) {
8908 Parser.eatToEndOfStatement();
8912 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(IndexExpression);
8914 Parser.eatToEndOfStatement();
8915 Error(IndexLoc, "index must be a constant number");
8918 if (CE->getValue() < 0 ||
8919 CE->getValue() >= ARM::EHABI::NUM_PERSONALITY_INDEX) {
8920 Parser.eatToEndOfStatement();
8921 Error(IndexLoc, "personality routine index should be in range [0-3]");
8925 getTargetStreamer().emitPersonalityIndex(CE->getValue());
8929 /// parseDirectiveUnwindRaw
8930 /// ::= .unwind_raw offset, opcode [, opcode...]
8931 bool ARMAsmParser::parseDirectiveUnwindRaw(SMLoc L) {
8932 if (!UC.hasFnStart()) {
8933 Parser.eatToEndOfStatement();
8934 Error(L, ".fnstart must precede .unwind_raw directives");
8938 int64_t StackOffset;
8940 const MCExpr *OffsetExpr;
8941 SMLoc OffsetLoc = getLexer().getLoc();
8942 if (getLexer().is(AsmToken::EndOfStatement) ||
8943 getParser().parseExpression(OffsetExpr)) {
8944 Error(OffsetLoc, "expected expression");
8945 Parser.eatToEndOfStatement();
8949 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8951 Error(OffsetLoc, "offset must be a constant");
8952 Parser.eatToEndOfStatement();
8956 StackOffset = CE->getValue();
8958 if (getLexer().isNot(AsmToken::Comma)) {
8959 Error(getLexer().getLoc(), "expected comma");
8960 Parser.eatToEndOfStatement();
8965 SmallVector<uint8_t, 16> Opcodes;
8969 SMLoc OpcodeLoc = getLexer().getLoc();
8970 if (getLexer().is(AsmToken::EndOfStatement) || Parser.parseExpression(OE)) {
8971 Error(OpcodeLoc, "expected opcode expression");
8972 Parser.eatToEndOfStatement();
8976 const MCConstantExpr *OC = dyn_cast<MCConstantExpr>(OE);
8978 Error(OpcodeLoc, "opcode value must be a constant");
8979 Parser.eatToEndOfStatement();
8983 const int64_t Opcode = OC->getValue();
8984 if (Opcode & ~0xff) {
8985 Error(OpcodeLoc, "invalid opcode");
8986 Parser.eatToEndOfStatement();
8990 Opcodes.push_back(uint8_t(Opcode));
8992 if (getLexer().is(AsmToken::EndOfStatement))
8995 if (getLexer().isNot(AsmToken::Comma)) {
8996 Error(getLexer().getLoc(), "unexpected token in directive");
8997 Parser.eatToEndOfStatement();
9004 getTargetStreamer().emitUnwindRaw(StackOffset, Opcodes);
9010 /// parseDirectiveTLSDescSeq
9011 /// ::= .tlsdescseq tls-variable
9012 bool ARMAsmParser::parseDirectiveTLSDescSeq(SMLoc L) {
9013 if (getLexer().isNot(AsmToken::Identifier)) {
9014 TokError("expected variable after '.tlsdescseq' directive");
9015 Parser.eatToEndOfStatement();
9019 const MCSymbolRefExpr *SRE =
9020 MCSymbolRefExpr::Create(Parser.getTok().getIdentifier(),
9021 MCSymbolRefExpr::VK_ARM_TLSDESCSEQ, getContext());
9024 if (getLexer().isNot(AsmToken::EndOfStatement)) {
9025 Error(Parser.getTok().getLoc(), "unexpected token");
9026 Parser.eatToEndOfStatement();
9030 getTargetStreamer().AnnotateTLSDescriptorSequence(SRE);
9034 /// parseDirectiveMovSP
9035 /// ::= .movsp reg [, #offset]
9036 bool ARMAsmParser::parseDirectiveMovSP(SMLoc L) {
9037 if (!UC.hasFnStart()) {
9038 Parser.eatToEndOfStatement();
9039 Error(L, ".fnstart must precede .movsp directives");
9042 if (UC.getFPReg() != ARM::SP) {
9043 Parser.eatToEndOfStatement();
9044 Error(L, "unexpected .movsp directive");
9048 SMLoc SPRegLoc = Parser.getTok().getLoc();
9049 int SPReg = tryParseRegister();
9051 Parser.eatToEndOfStatement();
9052 Error(SPRegLoc, "register expected");
9056 if (SPReg == ARM::SP || SPReg == ARM::PC) {
9057 Parser.eatToEndOfStatement();
9058 Error(SPRegLoc, "sp and pc are not permitted in .movsp directive");
9063 if (Parser.getTok().is(AsmToken::Comma)) {
9066 if (Parser.getTok().isNot(AsmToken::Hash)) {
9067 Error(Parser.getTok().getLoc(), "expected #constant");
9068 Parser.eatToEndOfStatement();
9073 const MCExpr *OffsetExpr;
9074 SMLoc OffsetLoc = Parser.getTok().getLoc();
9075 if (Parser.parseExpression(OffsetExpr)) {
9076 Parser.eatToEndOfStatement();
9077 Error(OffsetLoc, "malformed offset expression");
9081 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
9083 Parser.eatToEndOfStatement();
9084 Error(OffsetLoc, "offset must be an immediate constant");
9088 Offset = CE->getValue();
9091 getTargetStreamer().emitMovSP(SPReg, Offset);
9092 UC.saveFPReg(SPReg);
9097 /// Force static initialization.
9098 extern "C" void LLVMInitializeARMAsmParser() {
9099 RegisterMCAsmParser<ARMAsmParser> X(TheARMTarget);
9100 RegisterMCAsmParser<ARMAsmParser> Y(TheThumbTarget);
9103 #define GET_REGISTER_MATCHER
9104 #define GET_SUBTARGET_FEATURE_NAME
9105 #define GET_MATCHER_IMPLEMENTATION
9106 #include "ARMGenAsmMatcher.inc"
9108 // Define this matcher function after the auto-generated include so we
9109 // have the match class enum definitions.
9110 unsigned ARMAsmParser::validateTargetOperandClass(MCParsedAsmOperand *AsmOp,
9112 ARMOperand *Op = static_cast<ARMOperand*>(AsmOp);
9113 // If the kind is a token for a literal immediate, check if our asm
9114 // operand matches. This is for InstAliases which have a fixed-value
9115 // immediate in the syntax.
9120 if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm()))
9121 if (CE->getValue() == 0)
9122 return Match_Success;
9126 const MCExpr *SOExpr = Op->getImm();
9128 if (!SOExpr->EvaluateAsAbsolute(Value))
9129 return Match_Success;
9130 assert((Value >= INT32_MIN && Value <= INT32_MAX) &&
9131 "expression value must be representiable in 32 bits");
9136 MRI->getRegClass(ARM::GPRRegClassID).contains(Op->getReg()))
9137 return Match_Success;
9140 return Match_InvalidOperand;
9143 void ARMAsmParser::finishParse() {
9144 // Dump contents of assembler constant pools.
9145 MCStreamer &Streamer = getParser().getStreamer();
9146 for (ConstantPoolMapTy::iterator CPI = ConstantPools.begin(),
9147 CPE = ConstantPools.end();
9148 CPI != CPE; ++CPI) {
9149 const MCSection *Section = CPI->first;
9150 ConstantPool &CP = CPI->second;
9152 // Dump non-empty assembler constant pools at the end of the section.
9154 Streamer.SwitchSection(Section);
9155 CP.emitEntries(Streamer);