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 };
62 typedef SmallVector<SMLoc, 4> Locs;
67 Locs PersonalityIndexLocs;
72 UnwindContext(MCAsmParser &P) : Parser(P), FPReg(ARM::SP) {}
74 bool hasFnStart() const { return !FnStartLocs.empty(); }
75 bool cantUnwind() const { return !CantUnwindLocs.empty(); }
76 bool hasHandlerData() const { return !HandlerDataLocs.empty(); }
77 bool hasPersonality() const {
78 return !(PersonalityLocs.empty() && PersonalityIndexLocs.empty());
81 void recordFnStart(SMLoc L) { FnStartLocs.push_back(L); }
82 void recordCantUnwind(SMLoc L) { CantUnwindLocs.push_back(L); }
83 void recordPersonality(SMLoc L) { PersonalityLocs.push_back(L); }
84 void recordHandlerData(SMLoc L) { HandlerDataLocs.push_back(L); }
85 void recordPersonalityIndex(SMLoc L) { PersonalityIndexLocs.push_back(L); }
87 void saveFPReg(int Reg) { FPReg = Reg; }
88 int getFPReg() const { return FPReg; }
90 void emitFnStartLocNotes() const {
91 for (Locs::const_iterator FI = FnStartLocs.begin(), FE = FnStartLocs.end();
93 Parser.Note(*FI, ".fnstart was specified here");
95 void emitCantUnwindLocNotes() const {
96 for (Locs::const_iterator UI = CantUnwindLocs.begin(),
97 UE = CantUnwindLocs.end(); UI != UE; ++UI)
98 Parser.Note(*UI, ".cantunwind was specified here");
100 void emitHandlerDataLocNotes() const {
101 for (Locs::const_iterator HI = HandlerDataLocs.begin(),
102 HE = HandlerDataLocs.end(); HI != HE; ++HI)
103 Parser.Note(*HI, ".handlerdata was specified here");
105 void emitPersonalityLocNotes() const {
106 for (Locs::const_iterator PI = PersonalityLocs.begin(),
107 PE = PersonalityLocs.end(),
108 PII = PersonalityIndexLocs.begin(),
109 PIE = PersonalityIndexLocs.end();
110 PI != PE || PII != PIE;) {
111 if (PI != PE && (PII == PIE || PI->getPointer() < PII->getPointer()))
112 Parser.Note(*PI++, ".personality was specified here");
113 else if (PII != PIE && (PI == PE || PII->getPointer() < PI->getPointer()))
114 Parser.Note(*PII++, ".personalityindex was specified here");
116 llvm_unreachable(".personality and .personalityindex cannot be "
117 "at the same location");
122 FnStartLocs = Locs();
123 CantUnwindLocs = Locs();
124 PersonalityLocs = Locs();
125 HandlerDataLocs = Locs();
126 PersonalityIndexLocs = Locs();
131 class ARMAsmParser : public MCTargetAsmParser {
132 MCSubtargetInfo &STI;
134 const MCInstrInfo &MII;
135 const MCRegisterInfo *MRI;
138 ARMTargetStreamer &getTargetStreamer() {
139 MCTargetStreamer &TS = *getParser().getStreamer().getTargetStreamer();
140 return static_cast<ARMTargetStreamer &>(TS);
143 // Map of register aliases registers via the .req directive.
144 StringMap<unsigned> RegisterReqs;
146 bool NextSymbolIsThumb;
149 ARMCC::CondCodes Cond; // Condition for IT block.
150 unsigned Mask:4; // Condition mask for instructions.
151 // Starting at first 1 (from lsb).
152 // '1' condition as indicated in IT.
153 // '0' inverse of condition (else).
154 // Count of instructions in IT block is
155 // 4 - trailingzeroes(mask)
157 bool FirstCond; // Explicit flag for when we're parsing the
158 // First instruction in the IT block. It's
159 // implied in the mask, so needs special
162 unsigned CurPosition; // Current position in parsing of IT
163 // block. In range [0,3]. Initialized
164 // according to count of instructions in block.
165 // ~0U if no active IT block.
167 bool inITBlock() { return ITState.CurPosition != ~0U;}
168 void forwardITPosition() {
169 if (!inITBlock()) return;
170 // Move to the next instruction in the IT block, if there is one. If not,
171 // mark the block as done.
172 unsigned TZ = countTrailingZeros(ITState.Mask);
173 if (++ITState.CurPosition == 5 - TZ)
174 ITState.CurPosition = ~0U; // Done with the IT block after this.
178 MCAsmParser &getParser() const { return Parser; }
179 MCAsmLexer &getLexer() const { return Parser.getLexer(); }
181 void Note(SMLoc L, const Twine &Msg, ArrayRef<SMRange> Ranges = None) {
182 return Parser.Note(L, Msg, Ranges);
184 bool Warning(SMLoc L, const Twine &Msg,
185 ArrayRef<SMRange> Ranges = None) {
186 return Parser.Warning(L, Msg, Ranges);
188 bool Error(SMLoc L, const Twine &Msg,
189 ArrayRef<SMRange> Ranges = None) {
190 return Parser.Error(L, Msg, Ranges);
193 int tryParseRegister();
194 bool tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &);
195 int tryParseShiftRegister(SmallVectorImpl<MCParsedAsmOperand*> &);
196 bool parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &);
197 bool parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &);
198 bool parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &, StringRef Mnemonic);
199 bool parsePrefix(ARMMCExpr::VariantKind &RefKind);
200 bool parseMemRegOffsetShift(ARM_AM::ShiftOpc &ShiftType,
201 unsigned &ShiftAmount);
202 bool parseLiteralValues(unsigned Size, SMLoc L);
203 bool parseDirectiveThumb(SMLoc L);
204 bool parseDirectiveARM(SMLoc L);
205 bool parseDirectiveThumbFunc(SMLoc L);
206 bool parseDirectiveCode(SMLoc L);
207 bool parseDirectiveSyntax(SMLoc L);
208 bool parseDirectiveReq(StringRef Name, SMLoc L);
209 bool parseDirectiveUnreq(SMLoc L);
210 bool parseDirectiveArch(SMLoc L);
211 bool parseDirectiveEabiAttr(SMLoc L);
212 bool parseDirectiveCPU(SMLoc L);
213 bool parseDirectiveFPU(SMLoc L);
214 bool parseDirectiveFnStart(SMLoc L);
215 bool parseDirectiveFnEnd(SMLoc L);
216 bool parseDirectiveCantUnwind(SMLoc L);
217 bool parseDirectivePersonality(SMLoc L);
218 bool parseDirectiveHandlerData(SMLoc L);
219 bool parseDirectiveSetFP(SMLoc L);
220 bool parseDirectivePad(SMLoc L);
221 bool parseDirectiveRegSave(SMLoc L, bool IsVector);
222 bool parseDirectiveInst(SMLoc L, char Suffix = '\0');
223 bool parseDirectiveLtorg(SMLoc L);
224 bool parseDirectiveEven(SMLoc L);
225 bool parseDirectivePersonalityIndex(SMLoc L);
226 bool parseDirectiveUnwindRaw(SMLoc L);
227 bool parseDirectiveTLSDescSeq(SMLoc L);
228 bool parseDirectiveMovSP(SMLoc L);
229 bool parseDirectiveObjectArch(SMLoc L);
230 bool parseDirectiveArchExtension(SMLoc L);
231 bool parseDirectiveAlign(SMLoc L);
233 StringRef splitMnemonic(StringRef Mnemonic, unsigned &PredicationCode,
234 bool &CarrySetting, unsigned &ProcessorIMod,
236 void getMnemonicAcceptInfo(StringRef Mnemonic, StringRef FullInst,
237 bool &CanAcceptCarrySet,
238 bool &CanAcceptPredicationCode);
240 bool isThumb() const {
241 // FIXME: Can tablegen auto-generate this?
242 return (STI.getFeatureBits() & ARM::ModeThumb) != 0;
244 bool isThumbOne() const {
245 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2) == 0;
247 bool isThumbTwo() const {
248 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2);
250 bool hasThumb() const {
251 return STI.getFeatureBits() & ARM::HasV4TOps;
253 bool hasV6Ops() const {
254 return STI.getFeatureBits() & ARM::HasV6Ops;
256 bool hasV6MOps() const {
257 return STI.getFeatureBits() & ARM::HasV6MOps;
259 bool hasV7Ops() const {
260 return STI.getFeatureBits() & ARM::HasV7Ops;
262 bool hasV8Ops() const {
263 return STI.getFeatureBits() & ARM::HasV8Ops;
265 bool hasARM() const {
266 return !(STI.getFeatureBits() & ARM::FeatureNoARM);
270 unsigned FB = ComputeAvailableFeatures(STI.ToggleFeature(ARM::ModeThumb));
271 setAvailableFeatures(FB);
273 bool isMClass() const {
274 return STI.getFeatureBits() & ARM::FeatureMClass;
277 /// @name Auto-generated Match Functions
280 #define GET_ASSEMBLER_HEADER
281 #include "ARMGenAsmMatcher.inc"
285 OperandMatchResultTy parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*>&);
286 OperandMatchResultTy parseCoprocNumOperand(
287 SmallVectorImpl<MCParsedAsmOperand*>&);
288 OperandMatchResultTy parseCoprocRegOperand(
289 SmallVectorImpl<MCParsedAsmOperand*>&);
290 OperandMatchResultTy parseCoprocOptionOperand(
291 SmallVectorImpl<MCParsedAsmOperand*>&);
292 OperandMatchResultTy parseMemBarrierOptOperand(
293 SmallVectorImpl<MCParsedAsmOperand*>&);
294 OperandMatchResultTy parseInstSyncBarrierOptOperand(
295 SmallVectorImpl<MCParsedAsmOperand*>&);
296 OperandMatchResultTy parseProcIFlagsOperand(
297 SmallVectorImpl<MCParsedAsmOperand*>&);
298 OperandMatchResultTy parseMSRMaskOperand(
299 SmallVectorImpl<MCParsedAsmOperand*>&);
300 OperandMatchResultTy parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &O,
301 StringRef Op, int Low, int High);
302 OperandMatchResultTy parsePKHLSLImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
303 return parsePKHImm(O, "lsl", 0, 31);
305 OperandMatchResultTy parsePKHASRImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
306 return parsePKHImm(O, "asr", 1, 32);
308 OperandMatchResultTy parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*>&);
309 OperandMatchResultTy parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*>&);
310 OperandMatchResultTy parseRotImm(SmallVectorImpl<MCParsedAsmOperand*>&);
311 OperandMatchResultTy parseBitfield(SmallVectorImpl<MCParsedAsmOperand*>&);
312 OperandMatchResultTy parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*>&);
313 OperandMatchResultTy parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*>&);
314 OperandMatchResultTy parseFPImm(SmallVectorImpl<MCParsedAsmOperand*>&);
315 OperandMatchResultTy parseVectorList(SmallVectorImpl<MCParsedAsmOperand*>&);
316 OperandMatchResultTy parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index,
319 // Asm Match Converter Methods
320 void cvtThumbMultiply(MCInst &Inst,
321 const SmallVectorImpl<MCParsedAsmOperand*> &);
322 void cvtThumbBranches(MCInst &Inst,
323 const SmallVectorImpl<MCParsedAsmOperand*> &);
325 bool validateInstruction(MCInst &Inst,
326 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
327 bool processInstruction(MCInst &Inst,
328 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
329 bool shouldOmitCCOutOperand(StringRef Mnemonic,
330 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
331 bool shouldOmitPredicateOperand(StringRef Mnemonic,
332 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
334 enum ARMMatchResultTy {
335 Match_RequiresITBlock = FIRST_TARGET_MATCH_RESULT_TY,
336 Match_RequiresNotITBlock,
338 Match_RequiresThumb2,
339 #define GET_OPERAND_DIAGNOSTIC_TYPES
340 #include "ARMGenAsmMatcher.inc"
344 ARMAsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser,
345 const MCInstrInfo &MII)
346 : MCTargetAsmParser(), STI(_STI), Parser(_Parser), MII(MII), UC(_Parser) {
347 MCAsmParserExtension::Initialize(_Parser);
349 // Cache the MCRegisterInfo.
350 MRI = getContext().getRegisterInfo();
352 // Initialize the set of available features.
353 setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
355 // Not in an ITBlock to start with.
356 ITState.CurPosition = ~0U;
358 NextSymbolIsThumb = false;
361 // Implementation of the MCTargetAsmParser interface:
362 bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc);
363 bool ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
365 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
366 bool ParseDirective(AsmToken DirectiveID);
368 unsigned validateTargetOperandClass(MCParsedAsmOperand *Op, unsigned Kind);
369 unsigned checkTargetMatchPredicate(MCInst &Inst);
371 bool MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
372 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
373 MCStreamer &Out, unsigned &ErrorInfo,
374 bool MatchingInlineAsm);
375 void onLabelParsed(MCSymbol *Symbol);
377 } // end anonymous namespace
381 /// ARMOperand - Instances of this class represent a parsed ARM machine
383 class ARMOperand : public MCParsedAsmOperand {
393 k_InstSyncBarrierOpt,
404 k_VectorListAllLanes,
410 k_BitfieldDescriptor,
414 SMLoc StartLoc, EndLoc;
415 SmallVector<unsigned, 8> Registers;
418 ARMCC::CondCodes Val;
425 struct CoprocOptionOp {
438 ARM_ISB::InstSyncBOpt Val;
442 ARM_PROC::IFlags Val;
458 // A vector register list is a sequential list of 1 to 4 registers.
459 struct VectorListOp {
466 struct VectorIndexOp {
474 /// Combined record for all forms of ARM address expressions.
477 // Offset is in OffsetReg or OffsetImm. If both are zero, no offset
479 const MCConstantExpr *OffsetImm; // Offset immediate value
480 unsigned OffsetRegNum; // Offset register num, when OffsetImm == NULL
481 ARM_AM::ShiftOpc ShiftType; // Shift type for OffsetReg
482 unsigned ShiftImm; // shift for OffsetReg.
483 unsigned Alignment; // 0 = no alignment specified
484 // n = alignment in bytes (2, 4, 8, 16, or 32)
485 unsigned isNegative : 1; // Negated OffsetReg? (~'U' bit)
488 struct PostIdxRegOp {
491 ARM_AM::ShiftOpc ShiftTy;
495 struct ShifterImmOp {
500 struct RegShiftedRegOp {
501 ARM_AM::ShiftOpc ShiftTy;
507 struct RegShiftedImmOp {
508 ARM_AM::ShiftOpc ShiftTy;
525 struct CoprocOptionOp CoprocOption;
526 struct MBOptOp MBOpt;
527 struct ISBOptOp ISBOpt;
528 struct ITMaskOp ITMask;
529 struct IFlagsOp IFlags;
530 struct MMaskOp MMask;
533 struct VectorListOp VectorList;
534 struct VectorIndexOp VectorIndex;
536 struct MemoryOp Memory;
537 struct PostIdxRegOp PostIdxReg;
538 struct ShifterImmOp ShifterImm;
539 struct RegShiftedRegOp RegShiftedReg;
540 struct RegShiftedImmOp RegShiftedImm;
541 struct RotImmOp RotImm;
542 struct BitfieldOp Bitfield;
545 ARMOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
547 ARMOperand(const ARMOperand &o) : MCParsedAsmOperand() {
549 StartLoc = o.StartLoc;
566 case k_DPRRegisterList:
567 case k_SPRRegisterList:
568 Registers = o.Registers;
571 case k_VectorListAllLanes:
572 case k_VectorListIndexed:
573 VectorList = o.VectorList;
580 CoprocOption = o.CoprocOption;
585 case k_MemBarrierOpt:
588 case k_InstSyncBarrierOpt:
593 case k_PostIndexRegister:
594 PostIdxReg = o.PostIdxReg;
602 case k_ShifterImmediate:
603 ShifterImm = o.ShifterImm;
605 case k_ShiftedRegister:
606 RegShiftedReg = o.RegShiftedReg;
608 case k_ShiftedImmediate:
609 RegShiftedImm = o.RegShiftedImm;
611 case k_RotateImmediate:
614 case k_BitfieldDescriptor:
615 Bitfield = o.Bitfield;
618 VectorIndex = o.VectorIndex;
623 /// getStartLoc - Get the location of the first token of this operand.
624 SMLoc getStartLoc() const { return StartLoc; }
625 /// getEndLoc - Get the location of the last token of this operand.
626 SMLoc getEndLoc() const { return EndLoc; }
627 /// getLocRange - Get the range between the first and last token of this
629 SMRange getLocRange() const { return SMRange(StartLoc, EndLoc); }
631 ARMCC::CondCodes getCondCode() const {
632 assert(Kind == k_CondCode && "Invalid access!");
636 unsigned getCoproc() const {
637 assert((Kind == k_CoprocNum || Kind == k_CoprocReg) && "Invalid access!");
641 StringRef getToken() const {
642 assert(Kind == k_Token && "Invalid access!");
643 return StringRef(Tok.Data, Tok.Length);
646 unsigned getReg() const {
647 assert((Kind == k_Register || Kind == k_CCOut) && "Invalid access!");
651 const SmallVectorImpl<unsigned> &getRegList() const {
652 assert((Kind == k_RegisterList || Kind == k_DPRRegisterList ||
653 Kind == k_SPRRegisterList) && "Invalid access!");
657 const MCExpr *getImm() const {
658 assert(isImm() && "Invalid access!");
662 unsigned getVectorIndex() const {
663 assert(Kind == k_VectorIndex && "Invalid access!");
664 return VectorIndex.Val;
667 ARM_MB::MemBOpt getMemBarrierOpt() const {
668 assert(Kind == k_MemBarrierOpt && "Invalid access!");
672 ARM_ISB::InstSyncBOpt getInstSyncBarrierOpt() const {
673 assert(Kind == k_InstSyncBarrierOpt && "Invalid access!");
677 ARM_PROC::IFlags getProcIFlags() const {
678 assert(Kind == k_ProcIFlags && "Invalid access!");
682 unsigned getMSRMask() const {
683 assert(Kind == k_MSRMask && "Invalid access!");
687 bool isCoprocNum() const { return Kind == k_CoprocNum; }
688 bool isCoprocReg() const { return Kind == k_CoprocReg; }
689 bool isCoprocOption() const { return Kind == k_CoprocOption; }
690 bool isCondCode() const { return Kind == k_CondCode; }
691 bool isCCOut() const { return Kind == k_CCOut; }
692 bool isITMask() const { return Kind == k_ITCondMask; }
693 bool isITCondCode() const { return Kind == k_CondCode; }
694 bool isImm() const { return Kind == k_Immediate; }
695 // checks whether this operand is an unsigned offset which fits is a field
696 // of specified width and scaled by a specific number of bits
697 template<unsigned width, unsigned scale>
698 bool isUnsignedOffset() const {
699 if (!isImm()) return false;
700 if (isa<MCSymbolRefExpr>(Imm.Val)) return true;
701 if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Imm.Val)) {
702 int64_t Val = CE->getValue();
703 int64_t Align = 1LL << scale;
704 int64_t Max = Align * ((1LL << width) - 1);
705 return ((Val % Align) == 0) && (Val >= 0) && (Val <= Max);
709 // checks whether this operand is an signed offset which fits is a field
710 // of specified width and scaled by a specific number of bits
711 template<unsigned width, unsigned scale>
712 bool isSignedOffset() const {
713 if (!isImm()) return false;
714 if (isa<MCSymbolRefExpr>(Imm.Val)) return true;
715 if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Imm.Val)) {
716 int64_t Val = CE->getValue();
717 int64_t Align = 1LL << scale;
718 int64_t Max = Align * ((1LL << (width-1)) - 1);
719 int64_t Min = -Align * (1LL << (width-1));
720 return ((Val % Align) == 0) && (Val >= Min) && (Val <= Max);
725 // checks whether this operand is a memory operand computed as an offset
726 // applied to PC. the offset may have 8 bits of magnitude and is represented
727 // with two bits of shift. textually it may be either [pc, #imm], #imm or
728 // relocable expression...
729 bool isThumbMemPC() const {
732 if (isa<MCSymbolRefExpr>(Imm.Val)) return true;
733 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Imm.Val);
734 if (!CE) return false;
735 Val = CE->getValue();
738 if(!Memory.OffsetImm || Memory.OffsetRegNum) return false;
739 if(Memory.BaseRegNum != ARM::PC) return false;
740 Val = Memory.OffsetImm->getValue();
743 return ((Val % 4) == 0) && (Val >= 0) && (Val <= 1020);
745 bool isFPImm() const {
746 if (!isImm()) return false;
747 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
748 if (!CE) return false;
749 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
752 bool isFBits16() const {
753 if (!isImm()) return false;
754 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
755 if (!CE) return false;
756 int64_t Value = CE->getValue();
757 return Value >= 0 && Value <= 16;
759 bool isFBits32() const {
760 if (!isImm()) return false;
761 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
762 if (!CE) return false;
763 int64_t Value = CE->getValue();
764 return Value >= 1 && Value <= 32;
766 bool isImm8s4() const {
767 if (!isImm()) return false;
768 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
769 if (!CE) return false;
770 int64_t Value = CE->getValue();
771 return ((Value & 3) == 0) && Value >= -1020 && Value <= 1020;
773 bool isImm0_1020s4() const {
774 if (!isImm()) return false;
775 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
776 if (!CE) return false;
777 int64_t Value = CE->getValue();
778 return ((Value & 3) == 0) && Value >= 0 && Value <= 1020;
780 bool isImm0_508s4() const {
781 if (!isImm()) return false;
782 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
783 if (!CE) return false;
784 int64_t Value = CE->getValue();
785 return ((Value & 3) == 0) && Value >= 0 && Value <= 508;
787 bool isImm0_508s4Neg() const {
788 if (!isImm()) return false;
789 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
790 if (!CE) return false;
791 int64_t Value = -CE->getValue();
792 // explicitly exclude zero. we want that to use the normal 0_508 version.
793 return ((Value & 3) == 0) && Value > 0 && Value <= 508;
795 bool isImm0_239() const {
796 if (!isImm()) return false;
797 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
798 if (!CE) return false;
799 int64_t Value = CE->getValue();
800 return Value >= 0 && Value < 240;
802 bool isImm0_255() const {
803 if (!isImm()) return false;
804 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
805 if (!CE) return false;
806 int64_t Value = CE->getValue();
807 return Value >= 0 && Value < 256;
809 bool isImm0_4095() const {
810 if (!isImm()) return false;
811 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
812 if (!CE) return false;
813 int64_t Value = CE->getValue();
814 return Value >= 0 && Value < 4096;
816 bool isImm0_4095Neg() const {
817 if (!isImm()) return false;
818 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
819 if (!CE) return false;
820 int64_t Value = -CE->getValue();
821 return Value > 0 && Value < 4096;
823 bool isImm0_1() const {
824 if (!isImm()) return false;
825 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
826 if (!CE) return false;
827 int64_t Value = CE->getValue();
828 return Value >= 0 && Value < 2;
830 bool isImm0_3() const {
831 if (!isImm()) return false;
832 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
833 if (!CE) return false;
834 int64_t Value = CE->getValue();
835 return Value >= 0 && Value < 4;
837 bool isImm0_7() const {
838 if (!isImm()) return false;
839 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
840 if (!CE) return false;
841 int64_t Value = CE->getValue();
842 return Value >= 0 && Value < 8;
844 bool isImm0_15() const {
845 if (!isImm()) return false;
846 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
847 if (!CE) return false;
848 int64_t Value = CE->getValue();
849 return Value >= 0 && Value < 16;
851 bool isImm0_31() const {
852 if (!isImm()) return false;
853 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
854 if (!CE) return false;
855 int64_t Value = CE->getValue();
856 return Value >= 0 && Value < 32;
858 bool isImm0_63() const {
859 if (!isImm()) return false;
860 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
861 if (!CE) return false;
862 int64_t Value = CE->getValue();
863 return Value >= 0 && Value < 64;
865 bool isImm8() 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();
872 bool isImm16() 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();
879 bool isImm32() 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();
886 bool isShrImm8() 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 <= 8;
893 bool isShrImm16() 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 <= 16;
900 bool isShrImm32() 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 <= 32;
907 bool isShrImm64() 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 <= 64;
914 bool isImm1_7() 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 < 8;
921 bool isImm1_15() 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 < 16;
928 bool isImm1_31() 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 < 32;
935 bool isImm1_16() 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();
940 return Value > 0 && Value < 17;
942 bool isImm1_32() 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();
947 return Value > 0 && Value < 33;
949 bool isImm0_32() 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();
954 return Value >= 0 && Value < 33;
956 bool isImm0_65535() 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 < 65536;
963 bool isImm256_65535Expr() const {
964 if (!isImm()) return false;
965 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
966 // If it's not a constant expression, it'll generate a fixup and be
968 if (!CE) return true;
969 int64_t Value = CE->getValue();
970 return Value >= 256 && Value < 65536;
972 bool isImm0_65535Expr() const {
973 if (!isImm()) return false;
974 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
975 // If it's not a constant expression, it'll generate a fixup and be
977 if (!CE) return true;
978 int64_t Value = CE->getValue();
979 return Value >= 0 && Value < 65536;
981 bool isImm24bit() const {
982 if (!isImm()) return false;
983 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
984 if (!CE) return false;
985 int64_t Value = CE->getValue();
986 return Value >= 0 && Value <= 0xffffff;
988 bool isImmThumbSR() const {
989 if (!isImm()) return false;
990 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
991 if (!CE) return false;
992 int64_t Value = CE->getValue();
993 return Value > 0 && Value < 33;
995 bool isPKHLSLImm() const {
996 if (!isImm()) return false;
997 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
998 if (!CE) return false;
999 int64_t Value = CE->getValue();
1000 return Value >= 0 && Value < 32;
1002 bool isPKHASRImm() const {
1003 if (!isImm()) return false;
1004 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1005 if (!CE) return false;
1006 int64_t Value = CE->getValue();
1007 return Value > 0 && Value <= 32;
1009 bool isAdrLabel() const {
1010 // If we have an immediate that's not a constant, treat it as a label
1011 // reference needing a fixup. If it is a constant, but it can't fit
1012 // into shift immediate encoding, we reject it.
1013 if (isImm() && !isa<MCConstantExpr>(getImm())) return true;
1014 else return (isARMSOImm() || isARMSOImmNeg());
1016 bool isARMSOImm() const {
1017 if (!isImm()) return false;
1018 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1019 if (!CE) return false;
1020 int64_t Value = CE->getValue();
1021 return ARM_AM::getSOImmVal(Value) != -1;
1023 bool isARMSOImmNot() const {
1024 if (!isImm()) return false;
1025 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1026 if (!CE) return false;
1027 int64_t Value = CE->getValue();
1028 return ARM_AM::getSOImmVal(~Value) != -1;
1030 bool isARMSOImmNeg() const {
1031 if (!isImm()) return false;
1032 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1033 if (!CE) return false;
1034 int64_t Value = CE->getValue();
1035 // Only use this when not representable as a plain so_imm.
1036 return ARM_AM::getSOImmVal(Value) == -1 &&
1037 ARM_AM::getSOImmVal(-Value) != -1;
1039 bool isT2SOImm() const {
1040 if (!isImm()) return false;
1041 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1042 if (!CE) return false;
1043 int64_t Value = CE->getValue();
1044 return ARM_AM::getT2SOImmVal(Value) != -1;
1046 bool isT2SOImmNot() const {
1047 if (!isImm()) return false;
1048 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1049 if (!CE) return false;
1050 int64_t Value = CE->getValue();
1051 return ARM_AM::getT2SOImmVal(Value) == -1 &&
1052 ARM_AM::getT2SOImmVal(~Value) != -1;
1054 bool isT2SOImmNeg() const {
1055 if (!isImm()) return false;
1056 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1057 if (!CE) return false;
1058 int64_t Value = CE->getValue();
1059 // Only use this when not representable as a plain so_imm.
1060 return ARM_AM::getT2SOImmVal(Value) == -1 &&
1061 ARM_AM::getT2SOImmVal(-Value) != -1;
1063 bool isSetEndImm() const {
1064 if (!isImm()) return false;
1065 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1066 if (!CE) return false;
1067 int64_t Value = CE->getValue();
1068 return Value == 1 || Value == 0;
1070 bool isReg() const { return Kind == k_Register; }
1071 bool isRegList() const { return Kind == k_RegisterList; }
1072 bool isDPRRegList() const { return Kind == k_DPRRegisterList; }
1073 bool isSPRRegList() const { return Kind == k_SPRRegisterList; }
1074 bool isToken() const { return Kind == k_Token; }
1075 bool isMemBarrierOpt() const { return Kind == k_MemBarrierOpt; }
1076 bool isInstSyncBarrierOpt() const { return Kind == k_InstSyncBarrierOpt; }
1077 bool isMem() const { return Kind == k_Memory; }
1078 bool isShifterImm() const { return Kind == k_ShifterImmediate; }
1079 bool isRegShiftedReg() const { return Kind == k_ShiftedRegister; }
1080 bool isRegShiftedImm() const { return Kind == k_ShiftedImmediate; }
1081 bool isRotImm() const { return Kind == k_RotateImmediate; }
1082 bool isBitfield() const { return Kind == k_BitfieldDescriptor; }
1083 bool isPostIdxRegShifted() const { return Kind == k_PostIndexRegister; }
1084 bool isPostIdxReg() const {
1085 return Kind == k_PostIndexRegister && PostIdxReg.ShiftTy ==ARM_AM::no_shift;
1087 bool isMemNoOffset(bool alignOK = false) const {
1090 // No offset of any kind.
1091 return Memory.OffsetRegNum == 0 && Memory.OffsetImm == 0 &&
1092 (alignOK || Memory.Alignment == 0);
1094 bool isMemPCRelImm12() const {
1095 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1097 // Base register must be PC.
1098 if (Memory.BaseRegNum != ARM::PC)
1100 // Immediate offset in range [-4095, 4095].
1101 if (!Memory.OffsetImm) return true;
1102 int64_t Val = Memory.OffsetImm->getValue();
1103 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
1105 bool isAlignedMemory() const {
1106 return isMemNoOffset(true);
1108 bool isAddrMode2() const {
1109 if (!isMem() || Memory.Alignment != 0) return false;
1110 // Check for register offset.
1111 if (Memory.OffsetRegNum) return true;
1112 // Immediate offset in range [-4095, 4095].
1113 if (!Memory.OffsetImm) return true;
1114 int64_t Val = Memory.OffsetImm->getValue();
1115 return Val > -4096 && Val < 4096;
1117 bool isAM2OffsetImm() const {
1118 if (!isImm()) return false;
1119 // Immediate offset in range [-4095, 4095].
1120 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1121 if (!CE) return false;
1122 int64_t Val = CE->getValue();
1123 return (Val == INT32_MIN) || (Val > -4096 && Val < 4096);
1125 bool isAddrMode3() const {
1126 // If we have an immediate that's not a constant, treat it as a label
1127 // reference needing a fixup. If it is a constant, it's something else
1128 // and we reject it.
1129 if (isImm() && !isa<MCConstantExpr>(getImm()))
1131 if (!isMem() || Memory.Alignment != 0) return false;
1132 // No shifts are legal for AM3.
1133 if (Memory.ShiftType != ARM_AM::no_shift) return false;
1134 // Check for register offset.
1135 if (Memory.OffsetRegNum) return true;
1136 // Immediate offset in range [-255, 255].
1137 if (!Memory.OffsetImm) return true;
1138 int64_t Val = Memory.OffsetImm->getValue();
1139 // The #-0 offset is encoded as INT32_MIN, and we have to check
1141 return (Val > -256 && Val < 256) || Val == INT32_MIN;
1143 bool isAM3Offset() const {
1144 if (Kind != k_Immediate && Kind != k_PostIndexRegister)
1146 if (Kind == k_PostIndexRegister)
1147 return PostIdxReg.ShiftTy == ARM_AM::no_shift;
1148 // Immediate offset in range [-255, 255].
1149 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1150 if (!CE) return false;
1151 int64_t Val = CE->getValue();
1152 // Special case, #-0 is INT32_MIN.
1153 return (Val > -256 && Val < 256) || Val == INT32_MIN;
1155 bool isAddrMode5() const {
1156 // If we have an immediate that's not a constant, treat it as a label
1157 // reference needing a fixup. If it is a constant, it's something else
1158 // and we reject it.
1159 if (isImm() && !isa<MCConstantExpr>(getImm()))
1161 if (!isMem() || Memory.Alignment != 0) return false;
1162 // Check for register offset.
1163 if (Memory.OffsetRegNum) return false;
1164 // Immediate offset in range [-1020, 1020] and a multiple of 4.
1165 if (!Memory.OffsetImm) return true;
1166 int64_t Val = Memory.OffsetImm->getValue();
1167 return (Val >= -1020 && Val <= 1020 && ((Val & 3) == 0)) ||
1170 bool isMemTBB() const {
1171 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1172 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
1176 bool isMemTBH() const {
1177 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1178 Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm != 1 ||
1179 Memory.Alignment != 0 )
1183 bool isMemRegOffset() const {
1184 if (!isMem() || !Memory.OffsetRegNum || Memory.Alignment != 0)
1188 bool isT2MemRegOffset() const {
1189 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1190 Memory.Alignment != 0)
1192 // Only lsl #{0, 1, 2, 3} allowed.
1193 if (Memory.ShiftType == ARM_AM::no_shift)
1195 if (Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm > 3)
1199 bool isMemThumbRR() const {
1200 // Thumb reg+reg addressing is simple. Just two registers, a base and
1201 // an offset. No shifts, negations or any other complicating factors.
1202 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1203 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
1205 return isARMLowRegister(Memory.BaseRegNum) &&
1206 (!Memory.OffsetRegNum || isARMLowRegister(Memory.OffsetRegNum));
1208 bool isMemThumbRIs4() const {
1209 if (!isMem() || Memory.OffsetRegNum != 0 ||
1210 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1212 // Immediate offset, multiple of 4 in range [0, 124].
1213 if (!Memory.OffsetImm) return true;
1214 int64_t Val = Memory.OffsetImm->getValue();
1215 return Val >= 0 && Val <= 124 && (Val % 4) == 0;
1217 bool isMemThumbRIs2() const {
1218 if (!isMem() || Memory.OffsetRegNum != 0 ||
1219 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1221 // Immediate offset, multiple of 4 in range [0, 62].
1222 if (!Memory.OffsetImm) return true;
1223 int64_t Val = Memory.OffsetImm->getValue();
1224 return Val >= 0 && Val <= 62 && (Val % 2) == 0;
1226 bool isMemThumbRIs1() const {
1227 if (!isMem() || Memory.OffsetRegNum != 0 ||
1228 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1230 // Immediate offset in range [0, 31].
1231 if (!Memory.OffsetImm) return true;
1232 int64_t Val = Memory.OffsetImm->getValue();
1233 return Val >= 0 && Val <= 31;
1235 bool isMemThumbSPI() const {
1236 if (!isMem() || Memory.OffsetRegNum != 0 ||
1237 Memory.BaseRegNum != ARM::SP || Memory.Alignment != 0)
1239 // Immediate offset, multiple of 4 in range [0, 1020].
1240 if (!Memory.OffsetImm) return true;
1241 int64_t Val = Memory.OffsetImm->getValue();
1242 return Val >= 0 && Val <= 1020 && (Val % 4) == 0;
1244 bool isMemImm8s4Offset() const {
1245 // If we have an immediate that's not a constant, treat it as a label
1246 // reference needing a fixup. If it is a constant, it's something else
1247 // and we reject it.
1248 if (isImm() && !isa<MCConstantExpr>(getImm()))
1250 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1252 // Immediate offset a multiple of 4 in range [-1020, 1020].
1253 if (!Memory.OffsetImm) return true;
1254 int64_t Val = Memory.OffsetImm->getValue();
1255 // Special case, #-0 is INT32_MIN.
1256 return (Val >= -1020 && Val <= 1020 && (Val & 3) == 0) || Val == INT32_MIN;
1258 bool isMemImm0_1020s4Offset() const {
1259 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1261 // Immediate offset a multiple of 4 in range [0, 1020].
1262 if (!Memory.OffsetImm) return true;
1263 int64_t Val = Memory.OffsetImm->getValue();
1264 return Val >= 0 && Val <= 1020 && (Val & 3) == 0;
1266 bool isMemImm8Offset() const {
1267 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1269 // Base reg of PC isn't allowed for these encodings.
1270 if (Memory.BaseRegNum == ARM::PC) return false;
1271 // Immediate offset in range [-255, 255].
1272 if (!Memory.OffsetImm) return true;
1273 int64_t Val = Memory.OffsetImm->getValue();
1274 return (Val == INT32_MIN) || (Val > -256 && Val < 256);
1276 bool isMemPosImm8Offset() const {
1277 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1279 // Immediate offset in range [0, 255].
1280 if (!Memory.OffsetImm) return true;
1281 int64_t Val = Memory.OffsetImm->getValue();
1282 return Val >= 0 && Val < 256;
1284 bool isMemNegImm8Offset() const {
1285 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1287 // Base reg of PC isn't allowed for these encodings.
1288 if (Memory.BaseRegNum == ARM::PC) return false;
1289 // Immediate offset in range [-255, -1].
1290 if (!Memory.OffsetImm) return false;
1291 int64_t Val = Memory.OffsetImm->getValue();
1292 return (Val == INT32_MIN) || (Val > -256 && Val < 0);
1294 bool isMemUImm12Offset() const {
1295 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1297 // Immediate offset in range [0, 4095].
1298 if (!Memory.OffsetImm) return true;
1299 int64_t Val = Memory.OffsetImm->getValue();
1300 return (Val >= 0 && Val < 4096);
1302 bool isMemImm12Offset() const {
1303 // If we have an immediate that's not a constant, treat it as a label
1304 // reference needing a fixup. If it is a constant, it's something else
1305 // and we reject it.
1306 if (isImm() && !isa<MCConstantExpr>(getImm()))
1309 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1311 // Immediate offset in range [-4095, 4095].
1312 if (!Memory.OffsetImm) return true;
1313 int64_t Val = Memory.OffsetImm->getValue();
1314 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
1316 bool isPostIdxImm8() const {
1317 if (!isImm()) return false;
1318 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1319 if (!CE) return false;
1320 int64_t Val = CE->getValue();
1321 return (Val > -256 && Val < 256) || (Val == INT32_MIN);
1323 bool isPostIdxImm8s4() const {
1324 if (!isImm()) return false;
1325 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1326 if (!CE) return false;
1327 int64_t Val = CE->getValue();
1328 return ((Val & 3) == 0 && Val >= -1020 && Val <= 1020) ||
1332 bool isMSRMask() const { return Kind == k_MSRMask; }
1333 bool isProcIFlags() const { return Kind == k_ProcIFlags; }
1336 bool isSingleSpacedVectorList() const {
1337 return Kind == k_VectorList && !VectorList.isDoubleSpaced;
1339 bool isDoubleSpacedVectorList() const {
1340 return Kind == k_VectorList && VectorList.isDoubleSpaced;
1342 bool isVecListOneD() const {
1343 if (!isSingleSpacedVectorList()) return false;
1344 return VectorList.Count == 1;
1347 bool isVecListDPair() const {
1348 if (!isSingleSpacedVectorList()) return false;
1349 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1350 .contains(VectorList.RegNum));
1353 bool isVecListThreeD() const {
1354 if (!isSingleSpacedVectorList()) return false;
1355 return VectorList.Count == 3;
1358 bool isVecListFourD() const {
1359 if (!isSingleSpacedVectorList()) return false;
1360 return VectorList.Count == 4;
1363 bool isVecListDPairSpaced() const {
1364 if (isSingleSpacedVectorList()) return false;
1365 return (ARMMCRegisterClasses[ARM::DPairSpcRegClassID]
1366 .contains(VectorList.RegNum));
1369 bool isVecListThreeQ() const {
1370 if (!isDoubleSpacedVectorList()) return false;
1371 return VectorList.Count == 3;
1374 bool isVecListFourQ() const {
1375 if (!isDoubleSpacedVectorList()) return false;
1376 return VectorList.Count == 4;
1379 bool isSingleSpacedVectorAllLanes() const {
1380 return Kind == k_VectorListAllLanes && !VectorList.isDoubleSpaced;
1382 bool isDoubleSpacedVectorAllLanes() const {
1383 return Kind == k_VectorListAllLanes && VectorList.isDoubleSpaced;
1385 bool isVecListOneDAllLanes() const {
1386 if (!isSingleSpacedVectorAllLanes()) return false;
1387 return VectorList.Count == 1;
1390 bool isVecListDPairAllLanes() const {
1391 if (!isSingleSpacedVectorAllLanes()) return false;
1392 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1393 .contains(VectorList.RegNum));
1396 bool isVecListDPairSpacedAllLanes() const {
1397 if (!isDoubleSpacedVectorAllLanes()) return false;
1398 return VectorList.Count == 2;
1401 bool isVecListThreeDAllLanes() const {
1402 if (!isSingleSpacedVectorAllLanes()) return false;
1403 return VectorList.Count == 3;
1406 bool isVecListThreeQAllLanes() const {
1407 if (!isDoubleSpacedVectorAllLanes()) return false;
1408 return VectorList.Count == 3;
1411 bool isVecListFourDAllLanes() const {
1412 if (!isSingleSpacedVectorAllLanes()) return false;
1413 return VectorList.Count == 4;
1416 bool isVecListFourQAllLanes() const {
1417 if (!isDoubleSpacedVectorAllLanes()) return false;
1418 return VectorList.Count == 4;
1421 bool isSingleSpacedVectorIndexed() const {
1422 return Kind == k_VectorListIndexed && !VectorList.isDoubleSpaced;
1424 bool isDoubleSpacedVectorIndexed() const {
1425 return Kind == k_VectorListIndexed && VectorList.isDoubleSpaced;
1427 bool isVecListOneDByteIndexed() const {
1428 if (!isSingleSpacedVectorIndexed()) return false;
1429 return VectorList.Count == 1 && VectorList.LaneIndex <= 7;
1432 bool isVecListOneDHWordIndexed() const {
1433 if (!isSingleSpacedVectorIndexed()) return false;
1434 return VectorList.Count == 1 && VectorList.LaneIndex <= 3;
1437 bool isVecListOneDWordIndexed() const {
1438 if (!isSingleSpacedVectorIndexed()) return false;
1439 return VectorList.Count == 1 && VectorList.LaneIndex <= 1;
1442 bool isVecListTwoDByteIndexed() const {
1443 if (!isSingleSpacedVectorIndexed()) return false;
1444 return VectorList.Count == 2 && VectorList.LaneIndex <= 7;
1447 bool isVecListTwoDHWordIndexed() const {
1448 if (!isSingleSpacedVectorIndexed()) return false;
1449 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1452 bool isVecListTwoQWordIndexed() const {
1453 if (!isDoubleSpacedVectorIndexed()) return false;
1454 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1457 bool isVecListTwoQHWordIndexed() const {
1458 if (!isDoubleSpacedVectorIndexed()) return false;
1459 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1462 bool isVecListTwoDWordIndexed() const {
1463 if (!isSingleSpacedVectorIndexed()) return false;
1464 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1467 bool isVecListThreeDByteIndexed() const {
1468 if (!isSingleSpacedVectorIndexed()) return false;
1469 return VectorList.Count == 3 && VectorList.LaneIndex <= 7;
1472 bool isVecListThreeDHWordIndexed() const {
1473 if (!isSingleSpacedVectorIndexed()) return false;
1474 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1477 bool isVecListThreeQWordIndexed() const {
1478 if (!isDoubleSpacedVectorIndexed()) return false;
1479 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1482 bool isVecListThreeQHWordIndexed() const {
1483 if (!isDoubleSpacedVectorIndexed()) return false;
1484 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1487 bool isVecListThreeDWordIndexed() const {
1488 if (!isSingleSpacedVectorIndexed()) return false;
1489 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1492 bool isVecListFourDByteIndexed() const {
1493 if (!isSingleSpacedVectorIndexed()) return false;
1494 return VectorList.Count == 4 && VectorList.LaneIndex <= 7;
1497 bool isVecListFourDHWordIndexed() const {
1498 if (!isSingleSpacedVectorIndexed()) return false;
1499 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1502 bool isVecListFourQWordIndexed() const {
1503 if (!isDoubleSpacedVectorIndexed()) return false;
1504 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1507 bool isVecListFourQHWordIndexed() const {
1508 if (!isDoubleSpacedVectorIndexed()) return false;
1509 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1512 bool isVecListFourDWordIndexed() const {
1513 if (!isSingleSpacedVectorIndexed()) return false;
1514 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1517 bool isVectorIndex8() const {
1518 if (Kind != k_VectorIndex) return false;
1519 return VectorIndex.Val < 8;
1521 bool isVectorIndex16() const {
1522 if (Kind != k_VectorIndex) return false;
1523 return VectorIndex.Val < 4;
1525 bool isVectorIndex32() const {
1526 if (Kind != k_VectorIndex) return false;
1527 return VectorIndex.Val < 2;
1530 bool isNEONi8splat() const {
1531 if (!isImm()) return false;
1532 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1533 // Must be a constant.
1534 if (!CE) return false;
1535 int64_t Value = CE->getValue();
1536 // i8 value splatted across 8 bytes. The immediate is just the 8 byte
1538 return Value >= 0 && Value < 256;
1541 bool isNEONi16splat() const {
1542 if (!isImm()) return false;
1543 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1544 // Must be a constant.
1545 if (!CE) return false;
1546 int64_t Value = CE->getValue();
1547 // i16 value in the range [0,255] or [0x0100, 0xff00]
1548 return (Value >= 0 && Value < 256) || (Value >= 0x0100 && Value <= 0xff00);
1551 bool isNEONi32splat() const {
1552 if (!isImm()) return false;
1553 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1554 // Must be a constant.
1555 if (!CE) return false;
1556 int64_t Value = CE->getValue();
1557 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X.
1558 return (Value >= 0 && Value < 256) ||
1559 (Value >= 0x0100 && Value <= 0xff00) ||
1560 (Value >= 0x010000 && Value <= 0xff0000) ||
1561 (Value >= 0x01000000 && Value <= 0xff000000);
1564 bool isNEONi32vmov() const {
1565 if (!isImm()) return false;
1566 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1567 // Must be a constant.
1568 if (!CE) return false;
1569 int64_t Value = CE->getValue();
1570 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1571 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1572 return (Value >= 0 && Value < 256) ||
1573 (Value >= 0x0100 && Value <= 0xff00) ||
1574 (Value >= 0x010000 && Value <= 0xff0000) ||
1575 (Value >= 0x01000000 && Value <= 0xff000000) ||
1576 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1577 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1579 bool isNEONi32vmovNeg() const {
1580 if (!isImm()) return false;
1581 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1582 // Must be a constant.
1583 if (!CE) return false;
1584 int64_t Value = ~CE->getValue();
1585 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1586 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1587 return (Value >= 0 && Value < 256) ||
1588 (Value >= 0x0100 && Value <= 0xff00) ||
1589 (Value >= 0x010000 && Value <= 0xff0000) ||
1590 (Value >= 0x01000000 && Value <= 0xff000000) ||
1591 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1592 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1595 bool isNEONi64splat() const {
1596 if (!isImm()) return false;
1597 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1598 // Must be a constant.
1599 if (!CE) return false;
1600 uint64_t Value = CE->getValue();
1601 // i64 value with each byte being either 0 or 0xff.
1602 for (unsigned i = 0; i < 8; ++i)
1603 if ((Value & 0xff) != 0 && (Value & 0xff) != 0xff) return false;
1607 void addExpr(MCInst &Inst, const MCExpr *Expr) const {
1608 // Add as immediates when possible. Null MCExpr = 0.
1610 Inst.addOperand(MCOperand::CreateImm(0));
1611 else if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr))
1612 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1614 Inst.addOperand(MCOperand::CreateExpr(Expr));
1617 void addCondCodeOperands(MCInst &Inst, unsigned N) const {
1618 assert(N == 2 && "Invalid number of operands!");
1619 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1620 unsigned RegNum = getCondCode() == ARMCC::AL ? 0: ARM::CPSR;
1621 Inst.addOperand(MCOperand::CreateReg(RegNum));
1624 void addCoprocNumOperands(MCInst &Inst, unsigned N) const {
1625 assert(N == 1 && "Invalid number of operands!");
1626 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1629 void addCoprocRegOperands(MCInst &Inst, unsigned N) const {
1630 assert(N == 1 && "Invalid number of operands!");
1631 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1634 void addCoprocOptionOperands(MCInst &Inst, unsigned N) const {
1635 assert(N == 1 && "Invalid number of operands!");
1636 Inst.addOperand(MCOperand::CreateImm(CoprocOption.Val));
1639 void addITMaskOperands(MCInst &Inst, unsigned N) const {
1640 assert(N == 1 && "Invalid number of operands!");
1641 Inst.addOperand(MCOperand::CreateImm(ITMask.Mask));
1644 void addITCondCodeOperands(MCInst &Inst, unsigned N) const {
1645 assert(N == 1 && "Invalid number of operands!");
1646 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1649 void addCCOutOperands(MCInst &Inst, unsigned N) const {
1650 assert(N == 1 && "Invalid number of operands!");
1651 Inst.addOperand(MCOperand::CreateReg(getReg()));
1654 void addRegOperands(MCInst &Inst, unsigned N) const {
1655 assert(N == 1 && "Invalid number of operands!");
1656 Inst.addOperand(MCOperand::CreateReg(getReg()));
1659 void addRegShiftedRegOperands(MCInst &Inst, unsigned N) const {
1660 assert(N == 3 && "Invalid number of operands!");
1661 assert(isRegShiftedReg() &&
1662 "addRegShiftedRegOperands() on non-RegShiftedReg!");
1663 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.SrcReg));
1664 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.ShiftReg));
1665 Inst.addOperand(MCOperand::CreateImm(
1666 ARM_AM::getSORegOpc(RegShiftedReg.ShiftTy, RegShiftedReg.ShiftImm)));
1669 void addRegShiftedImmOperands(MCInst &Inst, unsigned N) const {
1670 assert(N == 2 && "Invalid number of operands!");
1671 assert(isRegShiftedImm() &&
1672 "addRegShiftedImmOperands() on non-RegShiftedImm!");
1673 Inst.addOperand(MCOperand::CreateReg(RegShiftedImm.SrcReg));
1674 // Shift of #32 is encoded as 0 where permitted
1675 unsigned Imm = (RegShiftedImm.ShiftImm == 32 ? 0 : RegShiftedImm.ShiftImm);
1676 Inst.addOperand(MCOperand::CreateImm(
1677 ARM_AM::getSORegOpc(RegShiftedImm.ShiftTy, Imm)));
1680 void addShifterImmOperands(MCInst &Inst, unsigned N) const {
1681 assert(N == 1 && "Invalid number of operands!");
1682 Inst.addOperand(MCOperand::CreateImm((ShifterImm.isASR << 5) |
1686 void addRegListOperands(MCInst &Inst, unsigned N) const {
1687 assert(N == 1 && "Invalid number of operands!");
1688 const SmallVectorImpl<unsigned> &RegList = getRegList();
1689 for (SmallVectorImpl<unsigned>::const_iterator
1690 I = RegList.begin(), E = RegList.end(); I != E; ++I)
1691 Inst.addOperand(MCOperand::CreateReg(*I));
1694 void addDPRRegListOperands(MCInst &Inst, unsigned N) const {
1695 addRegListOperands(Inst, N);
1698 void addSPRRegListOperands(MCInst &Inst, unsigned N) const {
1699 addRegListOperands(Inst, N);
1702 void addRotImmOperands(MCInst &Inst, unsigned N) const {
1703 assert(N == 1 && "Invalid number of operands!");
1704 // Encoded as val>>3. The printer handles display as 8, 16, 24.
1705 Inst.addOperand(MCOperand::CreateImm(RotImm.Imm >> 3));
1708 void addBitfieldOperands(MCInst &Inst, unsigned N) const {
1709 assert(N == 1 && "Invalid number of operands!");
1710 // Munge the lsb/width into a bitfield mask.
1711 unsigned lsb = Bitfield.LSB;
1712 unsigned width = Bitfield.Width;
1713 // Make a 32-bit mask w/ the referenced bits clear and all other bits set.
1714 uint32_t Mask = ~(((uint32_t)0xffffffff >> lsb) << (32 - width) >>
1715 (32 - (lsb + width)));
1716 Inst.addOperand(MCOperand::CreateImm(Mask));
1719 void addImmOperands(MCInst &Inst, unsigned N) const {
1720 assert(N == 1 && "Invalid number of operands!");
1721 addExpr(Inst, getImm());
1724 void addFBits16Operands(MCInst &Inst, unsigned N) const {
1725 assert(N == 1 && "Invalid number of operands!");
1726 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1727 Inst.addOperand(MCOperand::CreateImm(16 - CE->getValue()));
1730 void addFBits32Operands(MCInst &Inst, unsigned N) const {
1731 assert(N == 1 && "Invalid number of operands!");
1732 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1733 Inst.addOperand(MCOperand::CreateImm(32 - CE->getValue()));
1736 void addFPImmOperands(MCInst &Inst, unsigned N) const {
1737 assert(N == 1 && "Invalid number of operands!");
1738 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1739 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
1740 Inst.addOperand(MCOperand::CreateImm(Val));
1743 void addImm8s4Operands(MCInst &Inst, unsigned N) const {
1744 assert(N == 1 && "Invalid number of operands!");
1745 // FIXME: We really want to scale the value here, but the LDRD/STRD
1746 // instruction don't encode operands that way yet.
1747 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1748 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1751 void addImm0_1020s4Operands(MCInst &Inst, unsigned N) const {
1752 assert(N == 1 && "Invalid number of operands!");
1753 // The immediate is scaled by four in the encoding and is stored
1754 // in the MCInst as such. Lop off the low two bits here.
1755 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1756 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1759 void addImm0_508s4NegOperands(MCInst &Inst, unsigned N) const {
1760 assert(N == 1 && "Invalid number of operands!");
1761 // The immediate is scaled by four in the encoding and is stored
1762 // in the MCInst as such. Lop off the low two bits here.
1763 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1764 Inst.addOperand(MCOperand::CreateImm(-(CE->getValue() / 4)));
1767 void addImm0_508s4Operands(MCInst &Inst, unsigned N) const {
1768 assert(N == 1 && "Invalid number of operands!");
1769 // The immediate is scaled by four in the encoding and is stored
1770 // in the MCInst as such. Lop off the low two bits here.
1771 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1772 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1775 void addImm1_16Operands(MCInst &Inst, unsigned N) const {
1776 assert(N == 1 && "Invalid number of operands!");
1777 // The constant encodes as the immediate-1, and we store in the instruction
1778 // the bits as encoded, so subtract off one here.
1779 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1780 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1783 void addImm1_32Operands(MCInst &Inst, unsigned N) const {
1784 assert(N == 1 && "Invalid number of operands!");
1785 // The constant encodes as the immediate-1, and we store in the instruction
1786 // the bits as encoded, so subtract off one here.
1787 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1788 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1791 void addImmThumbSROperands(MCInst &Inst, unsigned N) const {
1792 assert(N == 1 && "Invalid number of operands!");
1793 // The constant encodes as the immediate, except for 32, which encodes as
1795 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1796 unsigned Imm = CE->getValue();
1797 Inst.addOperand(MCOperand::CreateImm((Imm == 32 ? 0 : Imm)));
1800 void addPKHASRImmOperands(MCInst &Inst, unsigned N) const {
1801 assert(N == 1 && "Invalid number of operands!");
1802 // An ASR value of 32 encodes as 0, so that's how we want to add it to
1803 // the instruction as well.
1804 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1805 int Val = CE->getValue();
1806 Inst.addOperand(MCOperand::CreateImm(Val == 32 ? 0 : Val));
1809 void addT2SOImmNotOperands(MCInst &Inst, unsigned N) const {
1810 assert(N == 1 && "Invalid number of operands!");
1811 // The operand is actually a t2_so_imm, but we have its bitwise
1812 // negation in the assembly source, so twiddle it here.
1813 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1814 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1817 void addT2SOImmNegOperands(MCInst &Inst, unsigned N) const {
1818 assert(N == 1 && "Invalid number of operands!");
1819 // The operand is actually a t2_so_imm, but we have its
1820 // negation in the assembly source, so twiddle it here.
1821 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1822 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1825 void addImm0_4095NegOperands(MCInst &Inst, unsigned N) const {
1826 assert(N == 1 && "Invalid number of operands!");
1827 // The operand is actually an imm0_4095, but we have its
1828 // negation in the assembly source, so twiddle it here.
1829 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1830 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1833 void addUnsignedOffset_b8s2Operands(MCInst &Inst, unsigned N) const {
1834 if(const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm())) {
1835 Inst.addOperand(MCOperand::CreateImm(CE->getValue() >> 2));
1839 const MCSymbolRefExpr *SR = dyn_cast<MCSymbolRefExpr>(Imm.Val);
1840 assert(SR && "Unknown value type!");
1841 Inst.addOperand(MCOperand::CreateExpr(SR));
1844 void addThumbMemPCOperands(MCInst &Inst, unsigned N) const {
1845 assert(N == 1 && "Invalid number of operands!");
1847 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1849 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1853 const MCSymbolRefExpr *SR = dyn_cast<MCSymbolRefExpr>(Imm.Val);
1854 assert(SR && "Unknown value type!");
1855 Inst.addOperand(MCOperand::CreateExpr(SR));
1859 assert(isMem() && "Unknown value type!");
1860 assert(isa<MCConstantExpr>(Memory.OffsetImm) && "Unknown value type!");
1861 Inst.addOperand(MCOperand::CreateImm(Memory.OffsetImm->getValue()));
1864 void addARMSOImmNotOperands(MCInst &Inst, unsigned N) const {
1865 assert(N == 1 && "Invalid number of operands!");
1866 // The operand is actually a so_imm, but we have its bitwise
1867 // negation in the assembly source, so twiddle it here.
1868 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1869 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1872 void addARMSOImmNegOperands(MCInst &Inst, unsigned N) const {
1873 assert(N == 1 && "Invalid number of operands!");
1874 // The operand is actually a so_imm, but we have its
1875 // negation in the assembly source, so twiddle it here.
1876 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1877 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1880 void addMemBarrierOptOperands(MCInst &Inst, unsigned N) const {
1881 assert(N == 1 && "Invalid number of operands!");
1882 Inst.addOperand(MCOperand::CreateImm(unsigned(getMemBarrierOpt())));
1885 void addInstSyncBarrierOptOperands(MCInst &Inst, unsigned N) const {
1886 assert(N == 1 && "Invalid number of operands!");
1887 Inst.addOperand(MCOperand::CreateImm(unsigned(getInstSyncBarrierOpt())));
1890 void addMemNoOffsetOperands(MCInst &Inst, unsigned N) const {
1891 assert(N == 1 && "Invalid number of operands!");
1892 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1895 void addMemPCRelImm12Operands(MCInst &Inst, unsigned N) const {
1896 assert(N == 1 && "Invalid number of operands!");
1897 int32_t Imm = Memory.OffsetImm->getValue();
1898 Inst.addOperand(MCOperand::CreateImm(Imm));
1901 void addAdrLabelOperands(MCInst &Inst, unsigned N) const {
1902 assert(N == 1 && "Invalid number of operands!");
1903 assert(isImm() && "Not an immediate!");
1905 // If we have an immediate that's not a constant, treat it as a label
1906 // reference needing a fixup.
1907 if (!isa<MCConstantExpr>(getImm())) {
1908 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1912 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1913 int Val = CE->getValue();
1914 Inst.addOperand(MCOperand::CreateImm(Val));
1917 void addAlignedMemoryOperands(MCInst &Inst, unsigned N) const {
1918 assert(N == 2 && "Invalid number of operands!");
1919 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1920 Inst.addOperand(MCOperand::CreateImm(Memory.Alignment));
1923 void addAddrMode2Operands(MCInst &Inst, unsigned N) const {
1924 assert(N == 3 && "Invalid number of operands!");
1925 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1926 if (!Memory.OffsetRegNum) {
1927 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1928 // Special case for #-0
1929 if (Val == INT32_MIN) Val = 0;
1930 if (Val < 0) Val = -Val;
1931 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
1933 // For register offset, we encode the shift type and negation flag
1935 Val = ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
1936 Memory.ShiftImm, Memory.ShiftType);
1938 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1939 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1940 Inst.addOperand(MCOperand::CreateImm(Val));
1943 void addAM2OffsetImmOperands(MCInst &Inst, unsigned N) const {
1944 assert(N == 2 && "Invalid number of operands!");
1945 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1946 assert(CE && "non-constant AM2OffsetImm operand!");
1947 int32_t Val = CE->getValue();
1948 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1949 // Special case for #-0
1950 if (Val == INT32_MIN) Val = 0;
1951 if (Val < 0) Val = -Val;
1952 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
1953 Inst.addOperand(MCOperand::CreateReg(0));
1954 Inst.addOperand(MCOperand::CreateImm(Val));
1957 void addAddrMode3Operands(MCInst &Inst, unsigned N) const {
1958 assert(N == 3 && "Invalid number of operands!");
1959 // If we have an immediate that's not a constant, treat it as a label
1960 // reference needing a fixup. If it is a constant, it's something else
1961 // and we reject it.
1963 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1964 Inst.addOperand(MCOperand::CreateReg(0));
1965 Inst.addOperand(MCOperand::CreateImm(0));
1969 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1970 if (!Memory.OffsetRegNum) {
1971 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1972 // Special case for #-0
1973 if (Val == INT32_MIN) Val = 0;
1974 if (Val < 0) Val = -Val;
1975 Val = ARM_AM::getAM3Opc(AddSub, Val);
1977 // For register offset, we encode the shift type and negation flag
1979 Val = ARM_AM::getAM3Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add, 0);
1981 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1982 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1983 Inst.addOperand(MCOperand::CreateImm(Val));
1986 void addAM3OffsetOperands(MCInst &Inst, unsigned N) const {
1987 assert(N == 2 && "Invalid number of operands!");
1988 if (Kind == k_PostIndexRegister) {
1990 ARM_AM::getAM3Opc(PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub, 0);
1991 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
1992 Inst.addOperand(MCOperand::CreateImm(Val));
1997 const MCConstantExpr *CE = static_cast<const MCConstantExpr*>(getImm());
1998 int32_t Val = CE->getValue();
1999 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2000 // Special case for #-0
2001 if (Val == INT32_MIN) Val = 0;
2002 if (Val < 0) Val = -Val;
2003 Val = ARM_AM::getAM3Opc(AddSub, Val);
2004 Inst.addOperand(MCOperand::CreateReg(0));
2005 Inst.addOperand(MCOperand::CreateImm(Val));
2008 void addAddrMode5Operands(MCInst &Inst, unsigned N) const {
2009 assert(N == 2 && "Invalid number of operands!");
2010 // If we have an immediate that's not a constant, treat it as a label
2011 // reference needing a fixup. If it is a constant, it's something else
2012 // and we reject it.
2014 Inst.addOperand(MCOperand::CreateExpr(getImm()));
2015 Inst.addOperand(MCOperand::CreateImm(0));
2019 // The lower two bits are always zero and as such are not encoded.
2020 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
2021 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2022 // Special case for #-0
2023 if (Val == INT32_MIN) Val = 0;
2024 if (Val < 0) Val = -Val;
2025 Val = ARM_AM::getAM5Opc(AddSub, Val);
2026 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2027 Inst.addOperand(MCOperand::CreateImm(Val));
2030 void addMemImm8s4OffsetOperands(MCInst &Inst, unsigned N) const {
2031 assert(N == 2 && "Invalid number of operands!");
2032 // If we have an immediate that's not a constant, treat it as a label
2033 // reference needing a fixup. If it is a constant, it's something else
2034 // and we reject it.
2036 Inst.addOperand(MCOperand::CreateExpr(getImm()));
2037 Inst.addOperand(MCOperand::CreateImm(0));
2041 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2042 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2043 Inst.addOperand(MCOperand::CreateImm(Val));
2046 void addMemImm0_1020s4OffsetOperands(MCInst &Inst, unsigned N) const {
2047 assert(N == 2 && "Invalid number of operands!");
2048 // The lower two bits are always zero and as such are not encoded.
2049 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
2050 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2051 Inst.addOperand(MCOperand::CreateImm(Val));
2054 void addMemImm8OffsetOperands(MCInst &Inst, unsigned N) const {
2055 assert(N == 2 && "Invalid number of operands!");
2056 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2057 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2058 Inst.addOperand(MCOperand::CreateImm(Val));
2061 void addMemPosImm8OffsetOperands(MCInst &Inst, unsigned N) const {
2062 addMemImm8OffsetOperands(Inst, N);
2065 void addMemNegImm8OffsetOperands(MCInst &Inst, unsigned N) const {
2066 addMemImm8OffsetOperands(Inst, N);
2069 void addMemUImm12OffsetOperands(MCInst &Inst, unsigned N) const {
2070 assert(N == 2 && "Invalid number of operands!");
2071 // If this is an immediate, it's a label reference.
2073 addExpr(Inst, getImm());
2074 Inst.addOperand(MCOperand::CreateImm(0));
2078 // Otherwise, it's a normal memory reg+offset.
2079 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2080 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2081 Inst.addOperand(MCOperand::CreateImm(Val));
2084 void addMemImm12OffsetOperands(MCInst &Inst, unsigned N) const {
2085 assert(N == 2 && "Invalid number of operands!");
2086 // If this is an immediate, it's a label reference.
2088 addExpr(Inst, getImm());
2089 Inst.addOperand(MCOperand::CreateImm(0));
2093 // Otherwise, it's a normal memory reg+offset.
2094 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2095 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2096 Inst.addOperand(MCOperand::CreateImm(Val));
2099 void addMemTBBOperands(MCInst &Inst, unsigned N) const {
2100 assert(N == 2 && "Invalid number of operands!");
2101 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2102 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2105 void addMemTBHOperands(MCInst &Inst, unsigned N) const {
2106 assert(N == 2 && "Invalid number of operands!");
2107 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2108 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2111 void addMemRegOffsetOperands(MCInst &Inst, unsigned N) const {
2112 assert(N == 3 && "Invalid number of operands!");
2114 ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
2115 Memory.ShiftImm, Memory.ShiftType);
2116 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2117 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2118 Inst.addOperand(MCOperand::CreateImm(Val));
2121 void addT2MemRegOffsetOperands(MCInst &Inst, unsigned N) const {
2122 assert(N == 3 && "Invalid number of operands!");
2123 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2124 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2125 Inst.addOperand(MCOperand::CreateImm(Memory.ShiftImm));
2128 void addMemThumbRROperands(MCInst &Inst, unsigned N) const {
2129 assert(N == 2 && "Invalid number of operands!");
2130 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2131 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2134 void addMemThumbRIs4Operands(MCInst &Inst, unsigned N) const {
2135 assert(N == 2 && "Invalid number of operands!");
2136 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
2137 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2138 Inst.addOperand(MCOperand::CreateImm(Val));
2141 void addMemThumbRIs2Operands(MCInst &Inst, unsigned N) const {
2142 assert(N == 2 && "Invalid number of operands!");
2143 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 2) : 0;
2144 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2145 Inst.addOperand(MCOperand::CreateImm(Val));
2148 void addMemThumbRIs1Operands(MCInst &Inst, unsigned N) const {
2149 assert(N == 2 && "Invalid number of operands!");
2150 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue()) : 0;
2151 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2152 Inst.addOperand(MCOperand::CreateImm(Val));
2155 void addMemThumbSPIOperands(MCInst &Inst, unsigned N) const {
2156 assert(N == 2 && "Invalid number of operands!");
2157 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
2158 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2159 Inst.addOperand(MCOperand::CreateImm(Val));
2162 void addPostIdxImm8Operands(MCInst &Inst, unsigned N) const {
2163 assert(N == 1 && "Invalid number of operands!");
2164 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2165 assert(CE && "non-constant post-idx-imm8 operand!");
2166 int Imm = CE->getValue();
2167 bool isAdd = Imm >= 0;
2168 if (Imm == INT32_MIN) Imm = 0;
2169 Imm = (Imm < 0 ? -Imm : Imm) | (int)isAdd << 8;
2170 Inst.addOperand(MCOperand::CreateImm(Imm));
2173 void addPostIdxImm8s4Operands(MCInst &Inst, unsigned N) const {
2174 assert(N == 1 && "Invalid number of operands!");
2175 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2176 assert(CE && "non-constant post-idx-imm8s4 operand!");
2177 int Imm = CE->getValue();
2178 bool isAdd = Imm >= 0;
2179 if (Imm == INT32_MIN) Imm = 0;
2180 // Immediate is scaled by 4.
2181 Imm = ((Imm < 0 ? -Imm : Imm) / 4) | (int)isAdd << 8;
2182 Inst.addOperand(MCOperand::CreateImm(Imm));
2185 void addPostIdxRegOperands(MCInst &Inst, unsigned N) const {
2186 assert(N == 2 && "Invalid number of operands!");
2187 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
2188 Inst.addOperand(MCOperand::CreateImm(PostIdxReg.isAdd));
2191 void addPostIdxRegShiftedOperands(MCInst &Inst, unsigned N) const {
2192 assert(N == 2 && "Invalid number of operands!");
2193 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
2194 // The sign, shift type, and shift amount are encoded in a single operand
2195 // using the AM2 encoding helpers.
2196 ARM_AM::AddrOpc opc = PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub;
2197 unsigned Imm = ARM_AM::getAM2Opc(opc, PostIdxReg.ShiftImm,
2198 PostIdxReg.ShiftTy);
2199 Inst.addOperand(MCOperand::CreateImm(Imm));
2202 void addMSRMaskOperands(MCInst &Inst, unsigned N) const {
2203 assert(N == 1 && "Invalid number of operands!");
2204 Inst.addOperand(MCOperand::CreateImm(unsigned(getMSRMask())));
2207 void addProcIFlagsOperands(MCInst &Inst, unsigned N) const {
2208 assert(N == 1 && "Invalid number of operands!");
2209 Inst.addOperand(MCOperand::CreateImm(unsigned(getProcIFlags())));
2212 void addVecListOperands(MCInst &Inst, unsigned N) const {
2213 assert(N == 1 && "Invalid number of operands!");
2214 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
2217 void addVecListIndexedOperands(MCInst &Inst, unsigned N) const {
2218 assert(N == 2 && "Invalid number of operands!");
2219 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
2220 Inst.addOperand(MCOperand::CreateImm(VectorList.LaneIndex));
2223 void addVectorIndex8Operands(MCInst &Inst, unsigned N) const {
2224 assert(N == 1 && "Invalid number of operands!");
2225 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2228 void addVectorIndex16Operands(MCInst &Inst, unsigned N) const {
2229 assert(N == 1 && "Invalid number of operands!");
2230 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2233 void addVectorIndex32Operands(MCInst &Inst, unsigned N) const {
2234 assert(N == 1 && "Invalid number of operands!");
2235 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2238 void addNEONi8splatOperands(MCInst &Inst, unsigned N) const {
2239 assert(N == 1 && "Invalid number of operands!");
2240 // The immediate encodes the type of constant as well as the value.
2241 // Mask in that this is an i8 splat.
2242 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2243 Inst.addOperand(MCOperand::CreateImm(CE->getValue() | 0xe00));
2246 void addNEONi16splatOperands(MCInst &Inst, unsigned N) const {
2247 assert(N == 1 && "Invalid number of operands!");
2248 // The immediate encodes the type of constant as well as the value.
2249 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2250 unsigned Value = CE->getValue();
2252 Value = (Value >> 8) | 0xa00;
2255 Inst.addOperand(MCOperand::CreateImm(Value));
2258 void addNEONi32splatOperands(MCInst &Inst, unsigned N) const {
2259 assert(N == 1 && "Invalid number of operands!");
2260 // The immediate encodes the type of constant as well as the value.
2261 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2262 unsigned Value = CE->getValue();
2263 if (Value >= 256 && Value <= 0xff00)
2264 Value = (Value >> 8) | 0x200;
2265 else if (Value > 0xffff && Value <= 0xff0000)
2266 Value = (Value >> 16) | 0x400;
2267 else if (Value > 0xffffff)
2268 Value = (Value >> 24) | 0x600;
2269 Inst.addOperand(MCOperand::CreateImm(Value));
2272 void addNEONi32vmovOperands(MCInst &Inst, unsigned N) const {
2273 assert(N == 1 && "Invalid number of operands!");
2274 // The immediate encodes the type of constant as well as the value.
2275 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2276 unsigned Value = CE->getValue();
2277 if (Value >= 256 && Value <= 0xffff)
2278 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2279 else if (Value > 0xffff && Value <= 0xffffff)
2280 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2281 else if (Value > 0xffffff)
2282 Value = (Value >> 24) | 0x600;
2283 Inst.addOperand(MCOperand::CreateImm(Value));
2286 void addNEONi32vmovNegOperands(MCInst &Inst, unsigned N) const {
2287 assert(N == 1 && "Invalid number of operands!");
2288 // The immediate encodes the type of constant as well as the value.
2289 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2290 unsigned Value = ~CE->getValue();
2291 if (Value >= 256 && Value <= 0xffff)
2292 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2293 else if (Value > 0xffff && Value <= 0xffffff)
2294 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2295 else if (Value > 0xffffff)
2296 Value = (Value >> 24) | 0x600;
2297 Inst.addOperand(MCOperand::CreateImm(Value));
2300 void addNEONi64splatOperands(MCInst &Inst, unsigned N) const {
2301 assert(N == 1 && "Invalid number of operands!");
2302 // The immediate encodes the type of constant as well as the value.
2303 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2304 uint64_t Value = CE->getValue();
2306 for (unsigned i = 0; i < 8; ++i, Value >>= 8) {
2307 Imm |= (Value & 1) << i;
2309 Inst.addOperand(MCOperand::CreateImm(Imm | 0x1e00));
2312 virtual void print(raw_ostream &OS) const;
2314 static ARMOperand *CreateITMask(unsigned Mask, SMLoc S) {
2315 ARMOperand *Op = new ARMOperand(k_ITCondMask);
2316 Op->ITMask.Mask = Mask;
2322 static ARMOperand *CreateCondCode(ARMCC::CondCodes CC, SMLoc S) {
2323 ARMOperand *Op = new ARMOperand(k_CondCode);
2330 static ARMOperand *CreateCoprocNum(unsigned CopVal, SMLoc S) {
2331 ARMOperand *Op = new ARMOperand(k_CoprocNum);
2332 Op->Cop.Val = CopVal;
2338 static ARMOperand *CreateCoprocReg(unsigned CopVal, SMLoc S) {
2339 ARMOperand *Op = new ARMOperand(k_CoprocReg);
2340 Op->Cop.Val = CopVal;
2346 static ARMOperand *CreateCoprocOption(unsigned Val, SMLoc S, SMLoc E) {
2347 ARMOperand *Op = new ARMOperand(k_CoprocOption);
2354 static ARMOperand *CreateCCOut(unsigned RegNum, SMLoc S) {
2355 ARMOperand *Op = new ARMOperand(k_CCOut);
2356 Op->Reg.RegNum = RegNum;
2362 static ARMOperand *CreateToken(StringRef Str, SMLoc S) {
2363 ARMOperand *Op = new ARMOperand(k_Token);
2364 Op->Tok.Data = Str.data();
2365 Op->Tok.Length = Str.size();
2371 static ARMOperand *CreateReg(unsigned RegNum, SMLoc S, SMLoc E) {
2372 ARMOperand *Op = new ARMOperand(k_Register);
2373 Op->Reg.RegNum = RegNum;
2379 static ARMOperand *CreateShiftedRegister(ARM_AM::ShiftOpc ShTy,
2384 ARMOperand *Op = new ARMOperand(k_ShiftedRegister);
2385 Op->RegShiftedReg.ShiftTy = ShTy;
2386 Op->RegShiftedReg.SrcReg = SrcReg;
2387 Op->RegShiftedReg.ShiftReg = ShiftReg;
2388 Op->RegShiftedReg.ShiftImm = ShiftImm;
2394 static ARMOperand *CreateShiftedImmediate(ARM_AM::ShiftOpc ShTy,
2398 ARMOperand *Op = new ARMOperand(k_ShiftedImmediate);
2399 Op->RegShiftedImm.ShiftTy = ShTy;
2400 Op->RegShiftedImm.SrcReg = SrcReg;
2401 Op->RegShiftedImm.ShiftImm = ShiftImm;
2407 static ARMOperand *CreateShifterImm(bool isASR, unsigned Imm,
2409 ARMOperand *Op = new ARMOperand(k_ShifterImmediate);
2410 Op->ShifterImm.isASR = isASR;
2411 Op->ShifterImm.Imm = Imm;
2417 static ARMOperand *CreateRotImm(unsigned Imm, SMLoc S, SMLoc E) {
2418 ARMOperand *Op = new ARMOperand(k_RotateImmediate);
2419 Op->RotImm.Imm = Imm;
2425 static ARMOperand *CreateBitfield(unsigned LSB, unsigned Width,
2427 ARMOperand *Op = new ARMOperand(k_BitfieldDescriptor);
2428 Op->Bitfield.LSB = LSB;
2429 Op->Bitfield.Width = Width;
2436 CreateRegList(SmallVectorImpl<std::pair<unsigned, unsigned> > &Regs,
2437 SMLoc StartLoc, SMLoc EndLoc) {
2438 assert (Regs.size() > 0 && "RegList contains no registers?");
2439 KindTy Kind = k_RegisterList;
2441 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Regs.front().second))
2442 Kind = k_DPRRegisterList;
2443 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].
2444 contains(Regs.front().second))
2445 Kind = k_SPRRegisterList;
2447 // Sort based on the register encoding values.
2448 array_pod_sort(Regs.begin(), Regs.end());
2450 ARMOperand *Op = new ARMOperand(Kind);
2451 for (SmallVectorImpl<std::pair<unsigned, unsigned> >::const_iterator
2452 I = Regs.begin(), E = Regs.end(); I != E; ++I)
2453 Op->Registers.push_back(I->second);
2454 Op->StartLoc = StartLoc;
2455 Op->EndLoc = EndLoc;
2459 static ARMOperand *CreateVectorList(unsigned RegNum, unsigned Count,
2460 bool isDoubleSpaced, SMLoc S, SMLoc E) {
2461 ARMOperand *Op = new ARMOperand(k_VectorList);
2462 Op->VectorList.RegNum = RegNum;
2463 Op->VectorList.Count = Count;
2464 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2470 static ARMOperand *CreateVectorListAllLanes(unsigned RegNum, unsigned Count,
2471 bool isDoubleSpaced,
2473 ARMOperand *Op = new ARMOperand(k_VectorListAllLanes);
2474 Op->VectorList.RegNum = RegNum;
2475 Op->VectorList.Count = Count;
2476 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2482 static ARMOperand *CreateVectorListIndexed(unsigned RegNum, unsigned Count,
2484 bool isDoubleSpaced,
2486 ARMOperand *Op = new ARMOperand(k_VectorListIndexed);
2487 Op->VectorList.RegNum = RegNum;
2488 Op->VectorList.Count = Count;
2489 Op->VectorList.LaneIndex = Index;
2490 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2496 static ARMOperand *CreateVectorIndex(unsigned Idx, SMLoc S, SMLoc E,
2498 ARMOperand *Op = new ARMOperand(k_VectorIndex);
2499 Op->VectorIndex.Val = Idx;
2505 static ARMOperand *CreateImm(const MCExpr *Val, SMLoc S, SMLoc E) {
2506 ARMOperand *Op = new ARMOperand(k_Immediate);
2513 static ARMOperand *CreateMem(unsigned BaseRegNum,
2514 const MCConstantExpr *OffsetImm,
2515 unsigned OffsetRegNum,
2516 ARM_AM::ShiftOpc ShiftType,
2521 ARMOperand *Op = new ARMOperand(k_Memory);
2522 Op->Memory.BaseRegNum = BaseRegNum;
2523 Op->Memory.OffsetImm = OffsetImm;
2524 Op->Memory.OffsetRegNum = OffsetRegNum;
2525 Op->Memory.ShiftType = ShiftType;
2526 Op->Memory.ShiftImm = ShiftImm;
2527 Op->Memory.Alignment = Alignment;
2528 Op->Memory.isNegative = isNegative;
2534 static ARMOperand *CreatePostIdxReg(unsigned RegNum, bool isAdd,
2535 ARM_AM::ShiftOpc ShiftTy,
2538 ARMOperand *Op = new ARMOperand(k_PostIndexRegister);
2539 Op->PostIdxReg.RegNum = RegNum;
2540 Op->PostIdxReg.isAdd = isAdd;
2541 Op->PostIdxReg.ShiftTy = ShiftTy;
2542 Op->PostIdxReg.ShiftImm = ShiftImm;
2548 static ARMOperand *CreateMemBarrierOpt(ARM_MB::MemBOpt Opt, SMLoc S) {
2549 ARMOperand *Op = new ARMOperand(k_MemBarrierOpt);
2550 Op->MBOpt.Val = Opt;
2556 static ARMOperand *CreateInstSyncBarrierOpt(ARM_ISB::InstSyncBOpt Opt,
2558 ARMOperand *Op = new ARMOperand(k_InstSyncBarrierOpt);
2559 Op->ISBOpt.Val = Opt;
2565 static ARMOperand *CreateProcIFlags(ARM_PROC::IFlags IFlags, SMLoc S) {
2566 ARMOperand *Op = new ARMOperand(k_ProcIFlags);
2567 Op->IFlags.Val = IFlags;
2573 static ARMOperand *CreateMSRMask(unsigned MMask, SMLoc S) {
2574 ARMOperand *Op = new ARMOperand(k_MSRMask);
2575 Op->MMask.Val = MMask;
2582 } // end anonymous namespace.
2584 void ARMOperand::print(raw_ostream &OS) const {
2587 OS << "<ARMCC::" << ARMCondCodeToString(getCondCode()) << ">";
2590 OS << "<ccout " << getReg() << ">";
2592 case k_ITCondMask: {
2593 static const char *const MaskStr[] = {
2594 "()", "(t)", "(e)", "(tt)", "(et)", "(te)", "(ee)", "(ttt)", "(ett)",
2595 "(tet)", "(eet)", "(tte)", "(ete)", "(tee)", "(eee)"
2597 assert((ITMask.Mask & 0xf) == ITMask.Mask);
2598 OS << "<it-mask " << MaskStr[ITMask.Mask] << ">";
2602 OS << "<coprocessor number: " << getCoproc() << ">";
2605 OS << "<coprocessor register: " << getCoproc() << ">";
2607 case k_CoprocOption:
2608 OS << "<coprocessor option: " << CoprocOption.Val << ">";
2611 OS << "<mask: " << getMSRMask() << ">";
2614 getImm()->print(OS);
2616 case k_MemBarrierOpt:
2617 OS << "<ARM_MB::" << MemBOptToString(getMemBarrierOpt(), false) << ">";
2619 case k_InstSyncBarrierOpt:
2620 OS << "<ARM_ISB::" << InstSyncBOptToString(getInstSyncBarrierOpt()) << ">";
2624 << " base:" << Memory.BaseRegNum;
2627 case k_PostIndexRegister:
2628 OS << "post-idx register " << (PostIdxReg.isAdd ? "" : "-")
2629 << PostIdxReg.RegNum;
2630 if (PostIdxReg.ShiftTy != ARM_AM::no_shift)
2631 OS << ARM_AM::getShiftOpcStr(PostIdxReg.ShiftTy) << " "
2632 << PostIdxReg.ShiftImm;
2635 case k_ProcIFlags: {
2636 OS << "<ARM_PROC::";
2637 unsigned IFlags = getProcIFlags();
2638 for (int i=2; i >= 0; --i)
2639 if (IFlags & (1 << i))
2640 OS << ARM_PROC::IFlagsToString(1 << i);
2645 OS << "<register " << getReg() << ">";
2647 case k_ShifterImmediate:
2648 OS << "<shift " << (ShifterImm.isASR ? "asr" : "lsl")
2649 << " #" << ShifterImm.Imm << ">";
2651 case k_ShiftedRegister:
2652 OS << "<so_reg_reg "
2653 << RegShiftedReg.SrcReg << " "
2654 << ARM_AM::getShiftOpcStr(RegShiftedReg.ShiftTy)
2655 << " " << RegShiftedReg.ShiftReg << ">";
2657 case k_ShiftedImmediate:
2658 OS << "<so_reg_imm "
2659 << RegShiftedImm.SrcReg << " "
2660 << ARM_AM::getShiftOpcStr(RegShiftedImm.ShiftTy)
2661 << " #" << RegShiftedImm.ShiftImm << ">";
2663 case k_RotateImmediate:
2664 OS << "<ror " << " #" << (RotImm.Imm * 8) << ">";
2666 case k_BitfieldDescriptor:
2667 OS << "<bitfield " << "lsb: " << Bitfield.LSB
2668 << ", width: " << Bitfield.Width << ">";
2670 case k_RegisterList:
2671 case k_DPRRegisterList:
2672 case k_SPRRegisterList: {
2673 OS << "<register_list ";
2675 const SmallVectorImpl<unsigned> &RegList = getRegList();
2676 for (SmallVectorImpl<unsigned>::const_iterator
2677 I = RegList.begin(), E = RegList.end(); I != E; ) {
2679 if (++I < E) OS << ", ";
2686 OS << "<vector_list " << VectorList.Count << " * "
2687 << VectorList.RegNum << ">";
2689 case k_VectorListAllLanes:
2690 OS << "<vector_list(all lanes) " << VectorList.Count << " * "
2691 << VectorList.RegNum << ">";
2693 case k_VectorListIndexed:
2694 OS << "<vector_list(lane " << VectorList.LaneIndex << ") "
2695 << VectorList.Count << " * " << VectorList.RegNum << ">";
2698 OS << "'" << getToken() << "'";
2701 OS << "<vectorindex " << getVectorIndex() << ">";
2706 /// @name Auto-generated Match Functions
2709 static unsigned MatchRegisterName(StringRef Name);
2713 bool ARMAsmParser::ParseRegister(unsigned &RegNo,
2714 SMLoc &StartLoc, SMLoc &EndLoc) {
2715 StartLoc = Parser.getTok().getLoc();
2716 EndLoc = Parser.getTok().getEndLoc();
2717 RegNo = tryParseRegister();
2719 return (RegNo == (unsigned)-1);
2722 /// Try to parse a register name. The token must be an Identifier when called,
2723 /// and if it is a register name the token is eaten and the register number is
2724 /// returned. Otherwise return -1.
2726 int ARMAsmParser::tryParseRegister() {
2727 const AsmToken &Tok = Parser.getTok();
2728 if (Tok.isNot(AsmToken::Identifier)) return -1;
2730 std::string lowerCase = Tok.getString().lower();
2731 unsigned RegNum = MatchRegisterName(lowerCase);
2733 RegNum = StringSwitch<unsigned>(lowerCase)
2734 .Case("r13", ARM::SP)
2735 .Case("r14", ARM::LR)
2736 .Case("r15", ARM::PC)
2737 .Case("ip", ARM::R12)
2738 // Additional register name aliases for 'gas' compatibility.
2739 .Case("a1", ARM::R0)
2740 .Case("a2", ARM::R1)
2741 .Case("a3", ARM::R2)
2742 .Case("a4", ARM::R3)
2743 .Case("v1", ARM::R4)
2744 .Case("v2", ARM::R5)
2745 .Case("v3", ARM::R6)
2746 .Case("v4", ARM::R7)
2747 .Case("v5", ARM::R8)
2748 .Case("v6", ARM::R9)
2749 .Case("v7", ARM::R10)
2750 .Case("v8", ARM::R11)
2751 .Case("sb", ARM::R9)
2752 .Case("sl", ARM::R10)
2753 .Case("fp", ARM::R11)
2757 // Check for aliases registered via .req. Canonicalize to lower case.
2758 // That's more consistent since register names are case insensitive, and
2759 // it's how the original entry was passed in from MC/MCParser/AsmParser.
2760 StringMap<unsigned>::const_iterator Entry = RegisterReqs.find(lowerCase);
2761 // If no match, return failure.
2762 if (Entry == RegisterReqs.end())
2764 Parser.Lex(); // Eat identifier token.
2765 return Entry->getValue();
2768 Parser.Lex(); // Eat identifier token.
2773 // Try to parse a shifter (e.g., "lsl <amt>"). On success, return 0.
2774 // If a recoverable error occurs, return 1. If an irrecoverable error
2775 // occurs, return -1. An irrecoverable error is one where tokens have been
2776 // consumed in the process of trying to parse the shifter (i.e., when it is
2777 // indeed a shifter operand, but malformed).
2778 int ARMAsmParser::tryParseShiftRegister(
2779 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2780 SMLoc S = Parser.getTok().getLoc();
2781 const AsmToken &Tok = Parser.getTok();
2782 if (Tok.isNot(AsmToken::Identifier))
2785 std::string lowerCase = Tok.getString().lower();
2786 ARM_AM::ShiftOpc ShiftTy = StringSwitch<ARM_AM::ShiftOpc>(lowerCase)
2787 .Case("asl", ARM_AM::lsl)
2788 .Case("lsl", ARM_AM::lsl)
2789 .Case("lsr", ARM_AM::lsr)
2790 .Case("asr", ARM_AM::asr)
2791 .Case("ror", ARM_AM::ror)
2792 .Case("rrx", ARM_AM::rrx)
2793 .Default(ARM_AM::no_shift);
2795 if (ShiftTy == ARM_AM::no_shift)
2798 Parser.Lex(); // Eat the operator.
2800 // The source register for the shift has already been added to the
2801 // operand list, so we need to pop it off and combine it into the shifted
2802 // register operand instead.
2803 OwningPtr<ARMOperand> PrevOp((ARMOperand*)Operands.pop_back_val());
2804 if (!PrevOp->isReg())
2805 return Error(PrevOp->getStartLoc(), "shift must be of a register");
2806 int SrcReg = PrevOp->getReg();
2811 if (ShiftTy == ARM_AM::rrx) {
2812 // RRX Doesn't have an explicit shift amount. The encoder expects
2813 // the shift register to be the same as the source register. Seems odd,
2817 // Figure out if this is shifted by a constant or a register (for non-RRX).
2818 if (Parser.getTok().is(AsmToken::Hash) ||
2819 Parser.getTok().is(AsmToken::Dollar)) {
2820 Parser.Lex(); // Eat hash.
2821 SMLoc ImmLoc = Parser.getTok().getLoc();
2822 const MCExpr *ShiftExpr = 0;
2823 if (getParser().parseExpression(ShiftExpr, EndLoc)) {
2824 Error(ImmLoc, "invalid immediate shift value");
2827 // The expression must be evaluatable as an immediate.
2828 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftExpr);
2830 Error(ImmLoc, "invalid immediate shift value");
2833 // Range check the immediate.
2834 // lsl, ror: 0 <= imm <= 31
2835 // lsr, asr: 0 <= imm <= 32
2836 Imm = CE->getValue();
2838 ((ShiftTy == ARM_AM::lsl || ShiftTy == ARM_AM::ror) && Imm > 31) ||
2839 ((ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr) && Imm > 32)) {
2840 Error(ImmLoc, "immediate shift value out of range");
2843 // shift by zero is a nop. Always send it through as lsl.
2844 // ('as' compatibility)
2846 ShiftTy = ARM_AM::lsl;
2847 } else if (Parser.getTok().is(AsmToken::Identifier)) {
2848 SMLoc L = Parser.getTok().getLoc();
2849 EndLoc = Parser.getTok().getEndLoc();
2850 ShiftReg = tryParseRegister();
2851 if (ShiftReg == -1) {
2852 Error (L, "expected immediate or register in shift operand");
2856 Error (Parser.getTok().getLoc(),
2857 "expected immediate or register in shift operand");
2862 if (ShiftReg && ShiftTy != ARM_AM::rrx)
2863 Operands.push_back(ARMOperand::CreateShiftedRegister(ShiftTy, SrcReg,
2867 Operands.push_back(ARMOperand::CreateShiftedImmediate(ShiftTy, SrcReg, Imm,
2874 /// Try to parse a register name. The token must be an Identifier when called.
2875 /// If it's a register, an AsmOperand is created. Another AsmOperand is created
2876 /// if there is a "writeback". 'true' if it's not a register.
2878 /// TODO this is likely to change to allow different register types and or to
2879 /// parse for a specific register type.
2881 tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2882 const AsmToken &RegTok = Parser.getTok();
2883 int RegNo = tryParseRegister();
2887 Operands.push_back(ARMOperand::CreateReg(RegNo, RegTok.getLoc(),
2888 RegTok.getEndLoc()));
2890 const AsmToken &ExclaimTok = Parser.getTok();
2891 if (ExclaimTok.is(AsmToken::Exclaim)) {
2892 Operands.push_back(ARMOperand::CreateToken(ExclaimTok.getString(),
2893 ExclaimTok.getLoc()));
2894 Parser.Lex(); // Eat exclaim token
2898 // Also check for an index operand. This is only legal for vector registers,
2899 // but that'll get caught OK in operand matching, so we don't need to
2900 // explicitly filter everything else out here.
2901 if (Parser.getTok().is(AsmToken::LBrac)) {
2902 SMLoc SIdx = Parser.getTok().getLoc();
2903 Parser.Lex(); // Eat left bracket token.
2905 const MCExpr *ImmVal;
2906 if (getParser().parseExpression(ImmVal))
2908 const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(ImmVal);
2910 return TokError("immediate value expected for vector index");
2912 if (Parser.getTok().isNot(AsmToken::RBrac))
2913 return Error(Parser.getTok().getLoc(), "']' expected");
2915 SMLoc E = Parser.getTok().getEndLoc();
2916 Parser.Lex(); // Eat right bracket token.
2918 Operands.push_back(ARMOperand::CreateVectorIndex(MCE->getValue(),
2926 /// MatchCoprocessorOperandName - Try to parse an coprocessor related
2927 /// instruction with a symbolic operand name. Example: "p1", "p7", "c3",
2929 static int MatchCoprocessorOperandName(StringRef Name, char CoprocOp) {
2930 // Use the same layout as the tablegen'erated register name matcher. Ugly,
2932 switch (Name.size()) {
2935 if (Name[0] != CoprocOp)
2951 if (Name[0] != CoprocOp || Name[1] != '1')
2955 // p10 and p11 are invalid for coproc instructions (reserved for FP/NEON)
2956 case '0': return CoprocOp == 'p'? -1: 10;
2957 case '1': return CoprocOp == 'p'? -1: 11;
2958 case '2': return 12;
2959 case '3': return 13;
2960 case '4': return 14;
2961 case '5': return 15;
2966 /// parseITCondCode - Try to parse a condition code for an IT instruction.
2967 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2968 parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2969 SMLoc S = Parser.getTok().getLoc();
2970 const AsmToken &Tok = Parser.getTok();
2971 if (!Tok.is(AsmToken::Identifier))
2972 return MatchOperand_NoMatch;
2973 unsigned CC = StringSwitch<unsigned>(Tok.getString().lower())
2974 .Case("eq", ARMCC::EQ)
2975 .Case("ne", ARMCC::NE)
2976 .Case("hs", ARMCC::HS)
2977 .Case("cs", ARMCC::HS)
2978 .Case("lo", ARMCC::LO)
2979 .Case("cc", ARMCC::LO)
2980 .Case("mi", ARMCC::MI)
2981 .Case("pl", ARMCC::PL)
2982 .Case("vs", ARMCC::VS)
2983 .Case("vc", ARMCC::VC)
2984 .Case("hi", ARMCC::HI)
2985 .Case("ls", ARMCC::LS)
2986 .Case("ge", ARMCC::GE)
2987 .Case("lt", ARMCC::LT)
2988 .Case("gt", ARMCC::GT)
2989 .Case("le", ARMCC::LE)
2990 .Case("al", ARMCC::AL)
2993 return MatchOperand_NoMatch;
2994 Parser.Lex(); // Eat the token.
2996 Operands.push_back(ARMOperand::CreateCondCode(ARMCC::CondCodes(CC), S));
2998 return MatchOperand_Success;
3001 /// parseCoprocNumOperand - Try to parse an coprocessor number operand. The
3002 /// token must be an Identifier when called, and if it is a coprocessor
3003 /// number, the token is eaten and the operand is added to the operand list.
3004 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3005 parseCoprocNumOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3006 SMLoc S = Parser.getTok().getLoc();
3007 const AsmToken &Tok = Parser.getTok();
3008 if (Tok.isNot(AsmToken::Identifier))
3009 return MatchOperand_NoMatch;
3011 int Num = MatchCoprocessorOperandName(Tok.getString(), 'p');
3013 return MatchOperand_NoMatch;
3015 Parser.Lex(); // Eat identifier token.
3016 Operands.push_back(ARMOperand::CreateCoprocNum(Num, S));
3017 return MatchOperand_Success;
3020 /// parseCoprocRegOperand - Try to parse an coprocessor register operand. The
3021 /// token must be an Identifier when called, and if it is a coprocessor
3022 /// number, the token is eaten and the operand is added to the operand list.
3023 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3024 parseCoprocRegOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3025 SMLoc S = Parser.getTok().getLoc();
3026 const AsmToken &Tok = Parser.getTok();
3027 if (Tok.isNot(AsmToken::Identifier))
3028 return MatchOperand_NoMatch;
3030 int Reg = MatchCoprocessorOperandName(Tok.getString(), 'c');
3032 return MatchOperand_NoMatch;
3034 Parser.Lex(); // Eat identifier token.
3035 Operands.push_back(ARMOperand::CreateCoprocReg(Reg, S));
3036 return MatchOperand_Success;
3039 /// parseCoprocOptionOperand - Try to parse an coprocessor option operand.
3040 /// coproc_option : '{' imm0_255 '}'
3041 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3042 parseCoprocOptionOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3043 SMLoc S = Parser.getTok().getLoc();
3045 // If this isn't a '{', this isn't a coprocessor immediate operand.
3046 if (Parser.getTok().isNot(AsmToken::LCurly))
3047 return MatchOperand_NoMatch;
3048 Parser.Lex(); // Eat the '{'
3051 SMLoc Loc = Parser.getTok().getLoc();
3052 if (getParser().parseExpression(Expr)) {
3053 Error(Loc, "illegal expression");
3054 return MatchOperand_ParseFail;
3056 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
3057 if (!CE || CE->getValue() < 0 || CE->getValue() > 255) {
3058 Error(Loc, "coprocessor option must be an immediate in range [0, 255]");
3059 return MatchOperand_ParseFail;
3061 int Val = CE->getValue();
3063 // Check for and consume the closing '}'
3064 if (Parser.getTok().isNot(AsmToken::RCurly))
3065 return MatchOperand_ParseFail;
3066 SMLoc E = Parser.getTok().getEndLoc();
3067 Parser.Lex(); // Eat the '}'
3069 Operands.push_back(ARMOperand::CreateCoprocOption(Val, S, E));
3070 return MatchOperand_Success;
3073 // For register list parsing, we need to map from raw GPR register numbering
3074 // to the enumeration values. The enumeration values aren't sorted by
3075 // register number due to our using "sp", "lr" and "pc" as canonical names.
3076 static unsigned getNextRegister(unsigned Reg) {
3077 // If this is a GPR, we need to do it manually, otherwise we can rely
3078 // on the sort ordering of the enumeration since the other reg-classes
3080 if (!ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3083 default: llvm_unreachable("Invalid GPR number!");
3084 case ARM::R0: return ARM::R1; case ARM::R1: return ARM::R2;
3085 case ARM::R2: return ARM::R3; case ARM::R3: return ARM::R4;
3086 case ARM::R4: return ARM::R5; case ARM::R5: return ARM::R6;
3087 case ARM::R6: return ARM::R7; case ARM::R7: return ARM::R8;
3088 case ARM::R8: return ARM::R9; case ARM::R9: return ARM::R10;
3089 case ARM::R10: return ARM::R11; case ARM::R11: return ARM::R12;
3090 case ARM::R12: return ARM::SP; case ARM::SP: return ARM::LR;
3091 case ARM::LR: return ARM::PC; case ARM::PC: return ARM::R0;
3095 // Return the low-subreg of a given Q register.
3096 static unsigned getDRegFromQReg(unsigned QReg) {
3098 default: llvm_unreachable("expected a Q register!");
3099 case ARM::Q0: return ARM::D0;
3100 case ARM::Q1: return ARM::D2;
3101 case ARM::Q2: return ARM::D4;
3102 case ARM::Q3: return ARM::D6;
3103 case ARM::Q4: return ARM::D8;
3104 case ARM::Q5: return ARM::D10;
3105 case ARM::Q6: return ARM::D12;
3106 case ARM::Q7: return ARM::D14;
3107 case ARM::Q8: return ARM::D16;
3108 case ARM::Q9: return ARM::D18;
3109 case ARM::Q10: return ARM::D20;
3110 case ARM::Q11: return ARM::D22;
3111 case ARM::Q12: return ARM::D24;
3112 case ARM::Q13: return ARM::D26;
3113 case ARM::Q14: return ARM::D28;
3114 case ARM::Q15: return ARM::D30;
3118 /// Parse a register list.
3120 parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3121 assert(Parser.getTok().is(AsmToken::LCurly) &&
3122 "Token is not a Left Curly Brace");
3123 SMLoc S = Parser.getTok().getLoc();
3124 Parser.Lex(); // Eat '{' token.
3125 SMLoc RegLoc = Parser.getTok().getLoc();
3127 // Check the first register in the list to see what register class
3128 // this is a list of.
3129 int Reg = tryParseRegister();
3131 return Error(RegLoc, "register expected");
3133 // The reglist instructions have at most 16 registers, so reserve
3134 // space for that many.
3136 SmallVector<std::pair<unsigned, unsigned>, 16> Registers;
3138 // Allow Q regs and just interpret them as the two D sub-registers.
3139 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3140 Reg = getDRegFromQReg(Reg);
3141 EReg = MRI->getEncodingValue(Reg);
3142 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3145 const MCRegisterClass *RC;
3146 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3147 RC = &ARMMCRegisterClasses[ARM::GPRRegClassID];
3148 else if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg))
3149 RC = &ARMMCRegisterClasses[ARM::DPRRegClassID];
3150 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].contains(Reg))
3151 RC = &ARMMCRegisterClasses[ARM::SPRRegClassID];
3153 return Error(RegLoc, "invalid register in register list");
3155 // Store the register.
3156 EReg = MRI->getEncodingValue(Reg);
3157 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3159 // This starts immediately after the first register token in the list,
3160 // so we can see either a comma or a minus (range separator) as a legal
3162 while (Parser.getTok().is(AsmToken::Comma) ||
3163 Parser.getTok().is(AsmToken::Minus)) {
3164 if (Parser.getTok().is(AsmToken::Minus)) {
3165 Parser.Lex(); // Eat the minus.
3166 SMLoc AfterMinusLoc = Parser.getTok().getLoc();
3167 int EndReg = tryParseRegister();
3169 return Error(AfterMinusLoc, "register expected");
3170 // Allow Q regs and just interpret them as the two D sub-registers.
3171 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3172 EndReg = getDRegFromQReg(EndReg) + 1;
3173 // If the register is the same as the start reg, there's nothing
3177 // The register must be in the same register class as the first.
3178 if (!RC->contains(EndReg))
3179 return Error(AfterMinusLoc, "invalid register in register list");
3180 // Ranges must go from low to high.
3181 if (MRI->getEncodingValue(Reg) > MRI->getEncodingValue(EndReg))
3182 return Error(AfterMinusLoc, "bad range in register list");
3184 // Add all the registers in the range to the register list.
3185 while (Reg != EndReg) {
3186 Reg = getNextRegister(Reg);
3187 EReg = MRI->getEncodingValue(Reg);
3188 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3192 Parser.Lex(); // Eat the comma.
3193 RegLoc = Parser.getTok().getLoc();
3195 const AsmToken RegTok = Parser.getTok();
3196 Reg = tryParseRegister();
3198 return Error(RegLoc, "register expected");
3199 // Allow Q regs and just interpret them as the two D sub-registers.
3200 bool isQReg = false;
3201 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3202 Reg = getDRegFromQReg(Reg);
3205 // The register must be in the same register class as the first.
3206 if (!RC->contains(Reg))
3207 return Error(RegLoc, "invalid register in register list");
3208 // List must be monotonically increasing.
3209 if (MRI->getEncodingValue(Reg) < MRI->getEncodingValue(OldReg)) {
3210 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3211 Warning(RegLoc, "register list not in ascending order");
3213 return Error(RegLoc, "register list not in ascending order");
3215 if (MRI->getEncodingValue(Reg) == MRI->getEncodingValue(OldReg)) {
3216 Warning(RegLoc, "duplicated register (" + RegTok.getString() +
3217 ") in register list");
3220 // VFP register lists must also be contiguous.
3221 if (RC != &ARMMCRegisterClasses[ARM::GPRRegClassID] &&
3223 return Error(RegLoc, "non-contiguous register range");
3224 EReg = MRI->getEncodingValue(Reg);
3225 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3227 EReg = MRI->getEncodingValue(++Reg);
3228 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3232 if (Parser.getTok().isNot(AsmToken::RCurly))
3233 return Error(Parser.getTok().getLoc(), "'}' expected");
3234 SMLoc E = Parser.getTok().getEndLoc();
3235 Parser.Lex(); // Eat '}' token.
3237 // Push the register list operand.
3238 Operands.push_back(ARMOperand::CreateRegList(Registers, S, E));
3240 // The ARM system instruction variants for LDM/STM have a '^' token here.
3241 if (Parser.getTok().is(AsmToken::Caret)) {
3242 Operands.push_back(ARMOperand::CreateToken("^",Parser.getTok().getLoc()));
3243 Parser.Lex(); // Eat '^' token.
3249 // Helper function to parse the lane index for vector lists.
3250 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3251 parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index, SMLoc &EndLoc) {
3252 Index = 0; // Always return a defined index value.
3253 if (Parser.getTok().is(AsmToken::LBrac)) {
3254 Parser.Lex(); // Eat the '['.
3255 if (Parser.getTok().is(AsmToken::RBrac)) {
3256 // "Dn[]" is the 'all lanes' syntax.
3257 LaneKind = AllLanes;
3258 EndLoc = Parser.getTok().getEndLoc();
3259 Parser.Lex(); // Eat the ']'.
3260 return MatchOperand_Success;
3263 // There's an optional '#' token here. Normally there wouldn't be, but
3264 // inline assemble puts one in, and it's friendly to accept that.
3265 if (Parser.getTok().is(AsmToken::Hash))
3266 Parser.Lex(); // Eat '#' or '$'.
3268 const MCExpr *LaneIndex;
3269 SMLoc Loc = Parser.getTok().getLoc();
3270 if (getParser().parseExpression(LaneIndex)) {
3271 Error(Loc, "illegal expression");
3272 return MatchOperand_ParseFail;
3274 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LaneIndex);
3276 Error(Loc, "lane index must be empty or an integer");
3277 return MatchOperand_ParseFail;
3279 if (Parser.getTok().isNot(AsmToken::RBrac)) {
3280 Error(Parser.getTok().getLoc(), "']' expected");
3281 return MatchOperand_ParseFail;
3283 EndLoc = Parser.getTok().getEndLoc();
3284 Parser.Lex(); // Eat the ']'.
3285 int64_t Val = CE->getValue();
3287 // FIXME: Make this range check context sensitive for .8, .16, .32.
3288 if (Val < 0 || Val > 7) {
3289 Error(Parser.getTok().getLoc(), "lane index out of range");
3290 return MatchOperand_ParseFail;
3293 LaneKind = IndexedLane;
3294 return MatchOperand_Success;
3297 return MatchOperand_Success;
3300 // parse a vector register list
3301 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3302 parseVectorList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3303 VectorLaneTy LaneKind;
3305 SMLoc S = Parser.getTok().getLoc();
3306 // As an extension (to match gas), support a plain D register or Q register
3307 // (without encosing curly braces) as a single or double entry list,
3309 if (Parser.getTok().is(AsmToken::Identifier)) {
3310 SMLoc E = Parser.getTok().getEndLoc();
3311 int Reg = tryParseRegister();
3313 return MatchOperand_NoMatch;
3314 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg)) {
3315 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex, E);
3316 if (Res != MatchOperand_Success)
3320 Operands.push_back(ARMOperand::CreateVectorList(Reg, 1, false, S, E));
3323 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 1, false,
3327 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 1,
3332 return MatchOperand_Success;
3334 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3335 Reg = getDRegFromQReg(Reg);
3336 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex, E);
3337 if (Res != MatchOperand_Success)
3341 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3342 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3343 Operands.push_back(ARMOperand::CreateVectorList(Reg, 2, false, S, E));
3346 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3347 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3348 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 2, false,
3352 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 2,
3357 return MatchOperand_Success;
3359 Error(S, "vector register expected");
3360 return MatchOperand_ParseFail;
3363 if (Parser.getTok().isNot(AsmToken::LCurly))
3364 return MatchOperand_NoMatch;
3366 Parser.Lex(); // Eat '{' token.
3367 SMLoc RegLoc = Parser.getTok().getLoc();
3369 int Reg = tryParseRegister();
3371 Error(RegLoc, "register expected");
3372 return MatchOperand_ParseFail;
3376 unsigned FirstReg = Reg;
3377 // The list is of D registers, but we also allow Q regs and just interpret
3378 // them as the two D sub-registers.
3379 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3380 FirstReg = Reg = getDRegFromQReg(Reg);
3381 Spacing = 1; // double-spacing requires explicit D registers, otherwise
3382 // it's ambiguous with four-register single spaced.
3388 if (parseVectorLane(LaneKind, LaneIndex, E) != MatchOperand_Success)
3389 return MatchOperand_ParseFail;
3391 while (Parser.getTok().is(AsmToken::Comma) ||
3392 Parser.getTok().is(AsmToken::Minus)) {
3393 if (Parser.getTok().is(AsmToken::Minus)) {
3395 Spacing = 1; // Register range implies a single spaced list.
3396 else if (Spacing == 2) {
3397 Error(Parser.getTok().getLoc(),
3398 "sequential registers in double spaced list");
3399 return MatchOperand_ParseFail;
3401 Parser.Lex(); // Eat the minus.
3402 SMLoc AfterMinusLoc = Parser.getTok().getLoc();
3403 int EndReg = tryParseRegister();
3405 Error(AfterMinusLoc, "register expected");
3406 return MatchOperand_ParseFail;
3408 // Allow Q regs and just interpret them as the two D sub-registers.
3409 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3410 EndReg = getDRegFromQReg(EndReg) + 1;
3411 // If the register is the same as the start reg, there's nothing
3415 // The register must be in the same register class as the first.
3416 if (!ARMMCRegisterClasses[ARM::DPRRegClassID].contains(EndReg)) {
3417 Error(AfterMinusLoc, "invalid register in register list");
3418 return MatchOperand_ParseFail;
3420 // Ranges must go from low to high.
3422 Error(AfterMinusLoc, "bad range in register list");
3423 return MatchOperand_ParseFail;
3425 // Parse the lane specifier if present.
3426 VectorLaneTy NextLaneKind;
3427 unsigned NextLaneIndex;
3428 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) !=
3429 MatchOperand_Success)
3430 return MatchOperand_ParseFail;
3431 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3432 Error(AfterMinusLoc, "mismatched lane index in register list");
3433 return MatchOperand_ParseFail;
3436 // Add all the registers in the range to the register list.
3437 Count += EndReg - Reg;
3441 Parser.Lex(); // Eat the comma.
3442 RegLoc = Parser.getTok().getLoc();
3444 Reg = tryParseRegister();
3446 Error(RegLoc, "register expected");
3447 return MatchOperand_ParseFail;
3449 // vector register lists must be contiguous.
3450 // It's OK to use the enumeration values directly here rather, as the
3451 // VFP register classes have the enum sorted properly.
3453 // The list is of D registers, but we also allow Q regs and just interpret
3454 // them as the two D sub-registers.
3455 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3457 Spacing = 1; // Register range implies a single spaced list.
3458 else if (Spacing == 2) {
3460 "invalid register in double-spaced list (must be 'D' register')");
3461 return MatchOperand_ParseFail;
3463 Reg = getDRegFromQReg(Reg);
3464 if (Reg != OldReg + 1) {
3465 Error(RegLoc, "non-contiguous register range");
3466 return MatchOperand_ParseFail;
3470 // Parse the lane specifier if present.
3471 VectorLaneTy NextLaneKind;
3472 unsigned NextLaneIndex;
3473 SMLoc LaneLoc = Parser.getTok().getLoc();
3474 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) !=
3475 MatchOperand_Success)
3476 return MatchOperand_ParseFail;
3477 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3478 Error(LaneLoc, "mismatched lane index in register list");
3479 return MatchOperand_ParseFail;
3483 // Normal D register.
3484 // Figure out the register spacing (single or double) of the list if
3485 // we don't know it already.
3487 Spacing = 1 + (Reg == OldReg + 2);
3489 // Just check that it's contiguous and keep going.
3490 if (Reg != OldReg + Spacing) {
3491 Error(RegLoc, "non-contiguous register range");
3492 return MatchOperand_ParseFail;
3495 // Parse the lane specifier if present.
3496 VectorLaneTy NextLaneKind;
3497 unsigned NextLaneIndex;
3498 SMLoc EndLoc = Parser.getTok().getLoc();
3499 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) != MatchOperand_Success)
3500 return MatchOperand_ParseFail;
3501 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3502 Error(EndLoc, "mismatched lane index in register list");
3503 return MatchOperand_ParseFail;
3507 if (Parser.getTok().isNot(AsmToken::RCurly)) {
3508 Error(Parser.getTok().getLoc(), "'}' expected");
3509 return MatchOperand_ParseFail;
3511 E = Parser.getTok().getEndLoc();
3512 Parser.Lex(); // Eat '}' token.
3516 // Two-register operands have been converted to the
3517 // composite register classes.
3519 const MCRegisterClass *RC = (Spacing == 1) ?
3520 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3521 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3522 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3525 Operands.push_back(ARMOperand::CreateVectorList(FirstReg, Count,
3526 (Spacing == 2), S, E));
3529 // Two-register operands have been converted to the
3530 // composite register classes.
3532 const MCRegisterClass *RC = (Spacing == 1) ?
3533 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3534 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3535 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3537 Operands.push_back(ARMOperand::CreateVectorListAllLanes(FirstReg, Count,
3542 Operands.push_back(ARMOperand::CreateVectorListIndexed(FirstReg, Count,
3548 return MatchOperand_Success;
3551 /// parseMemBarrierOptOperand - Try to parse DSB/DMB data barrier options.
3552 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3553 parseMemBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3554 SMLoc S = Parser.getTok().getLoc();
3555 const AsmToken &Tok = Parser.getTok();
3558 if (Tok.is(AsmToken::Identifier)) {
3559 StringRef OptStr = Tok.getString();
3561 Opt = StringSwitch<unsigned>(OptStr.slice(0, OptStr.size()).lower())
3562 .Case("sy", ARM_MB::SY)
3563 .Case("st", ARM_MB::ST)
3564 .Case("ld", ARM_MB::LD)
3565 .Case("sh", ARM_MB::ISH)
3566 .Case("ish", ARM_MB::ISH)
3567 .Case("shst", ARM_MB::ISHST)
3568 .Case("ishst", ARM_MB::ISHST)
3569 .Case("ishld", ARM_MB::ISHLD)
3570 .Case("nsh", ARM_MB::NSH)
3571 .Case("un", ARM_MB::NSH)
3572 .Case("nshst", ARM_MB::NSHST)
3573 .Case("nshld", ARM_MB::NSHLD)
3574 .Case("unst", ARM_MB::NSHST)
3575 .Case("osh", ARM_MB::OSH)
3576 .Case("oshst", ARM_MB::OSHST)
3577 .Case("oshld", ARM_MB::OSHLD)
3580 // ishld, oshld, nshld and ld are only available from ARMv8.
3581 if (!hasV8Ops() && (Opt == ARM_MB::ISHLD || Opt == ARM_MB::OSHLD ||
3582 Opt == ARM_MB::NSHLD || Opt == ARM_MB::LD))
3586 return MatchOperand_NoMatch;
3588 Parser.Lex(); // Eat identifier token.
3589 } else if (Tok.is(AsmToken::Hash) ||
3590 Tok.is(AsmToken::Dollar) ||
3591 Tok.is(AsmToken::Integer)) {
3592 if (Parser.getTok().isNot(AsmToken::Integer))
3593 Parser.Lex(); // Eat '#' or '$'.
3594 SMLoc Loc = Parser.getTok().getLoc();
3596 const MCExpr *MemBarrierID;
3597 if (getParser().parseExpression(MemBarrierID)) {
3598 Error(Loc, "illegal expression");
3599 return MatchOperand_ParseFail;
3602 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(MemBarrierID);
3604 Error(Loc, "constant expression expected");
3605 return MatchOperand_ParseFail;
3608 int Val = CE->getValue();
3610 Error(Loc, "immediate value out of range");
3611 return MatchOperand_ParseFail;
3614 Opt = ARM_MB::RESERVED_0 + Val;
3616 return MatchOperand_ParseFail;
3618 Operands.push_back(ARMOperand::CreateMemBarrierOpt((ARM_MB::MemBOpt)Opt, S));
3619 return MatchOperand_Success;
3622 /// parseInstSyncBarrierOptOperand - Try to parse ISB inst sync barrier options.
3623 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3624 parseInstSyncBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3625 SMLoc S = Parser.getTok().getLoc();
3626 const AsmToken &Tok = Parser.getTok();
3629 if (Tok.is(AsmToken::Identifier)) {
3630 StringRef OptStr = Tok.getString();
3632 if (OptStr.equals_lower("sy"))
3635 return MatchOperand_NoMatch;
3637 Parser.Lex(); // Eat identifier token.
3638 } else if (Tok.is(AsmToken::Hash) ||
3639 Tok.is(AsmToken::Dollar) ||
3640 Tok.is(AsmToken::Integer)) {
3641 if (Parser.getTok().isNot(AsmToken::Integer))
3642 Parser.Lex(); // Eat '#' or '$'.
3643 SMLoc Loc = Parser.getTok().getLoc();
3645 const MCExpr *ISBarrierID;
3646 if (getParser().parseExpression(ISBarrierID)) {
3647 Error(Loc, "illegal expression");
3648 return MatchOperand_ParseFail;
3651 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ISBarrierID);
3653 Error(Loc, "constant expression expected");
3654 return MatchOperand_ParseFail;
3657 int Val = CE->getValue();
3659 Error(Loc, "immediate value out of range");
3660 return MatchOperand_ParseFail;
3663 Opt = ARM_ISB::RESERVED_0 + Val;
3665 return MatchOperand_ParseFail;
3667 Operands.push_back(ARMOperand::CreateInstSyncBarrierOpt(
3668 (ARM_ISB::InstSyncBOpt)Opt, S));
3669 return MatchOperand_Success;
3673 /// parseProcIFlagsOperand - Try to parse iflags from CPS instruction.
3674 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3675 parseProcIFlagsOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3676 SMLoc S = Parser.getTok().getLoc();
3677 const AsmToken &Tok = Parser.getTok();
3678 if (!Tok.is(AsmToken::Identifier))
3679 return MatchOperand_NoMatch;
3680 StringRef IFlagsStr = Tok.getString();
3682 // An iflags string of "none" is interpreted to mean that none of the AIF
3683 // bits are set. Not a terribly useful instruction, but a valid encoding.
3684 unsigned IFlags = 0;
3685 if (IFlagsStr != "none") {
3686 for (int i = 0, e = IFlagsStr.size(); i != e; ++i) {
3687 unsigned Flag = StringSwitch<unsigned>(IFlagsStr.substr(i, 1))
3688 .Case("a", ARM_PROC::A)
3689 .Case("i", ARM_PROC::I)
3690 .Case("f", ARM_PROC::F)
3693 // If some specific iflag is already set, it means that some letter is
3694 // present more than once, this is not acceptable.
3695 if (Flag == ~0U || (IFlags & Flag))
3696 return MatchOperand_NoMatch;
3702 Parser.Lex(); // Eat identifier token.
3703 Operands.push_back(ARMOperand::CreateProcIFlags((ARM_PROC::IFlags)IFlags, S));
3704 return MatchOperand_Success;
3707 /// parseMSRMaskOperand - Try to parse mask flags from MSR instruction.
3708 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3709 parseMSRMaskOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3710 SMLoc S = Parser.getTok().getLoc();
3711 const AsmToken &Tok = Parser.getTok();
3712 if (!Tok.is(AsmToken::Identifier))
3713 return MatchOperand_NoMatch;
3714 StringRef Mask = Tok.getString();
3717 // See ARMv6-M 10.1.1
3718 std::string Name = Mask.lower();
3719 unsigned FlagsVal = StringSwitch<unsigned>(Name)
3720 // Note: in the documentation:
3721 // ARM deprecates using MSR APSR without a _<bits> qualifier as an alias
3722 // for MSR APSR_nzcvq.
3723 // but we do make it an alias here. This is so to get the "mask encoding"
3724 // bits correct on MSR APSR writes.
3726 // FIXME: Note the 0xc00 "mask encoding" bits version of the registers
3727 // should really only be allowed when writing a special register. Note
3728 // they get dropped in the MRS instruction reading a special register as
3729 // the SYSm field is only 8 bits.
3731 // FIXME: the _g and _nzcvqg versions are only allowed if the processor
3732 // includes the DSP extension but that is not checked.
3733 .Case("apsr", 0x800)
3734 .Case("apsr_nzcvq", 0x800)
3735 .Case("apsr_g", 0x400)
3736 .Case("apsr_nzcvqg", 0xc00)
3737 .Case("iapsr", 0x801)
3738 .Case("iapsr_nzcvq", 0x801)
3739 .Case("iapsr_g", 0x401)
3740 .Case("iapsr_nzcvqg", 0xc01)
3741 .Case("eapsr", 0x802)
3742 .Case("eapsr_nzcvq", 0x802)
3743 .Case("eapsr_g", 0x402)
3744 .Case("eapsr_nzcvqg", 0xc02)
3745 .Case("xpsr", 0x803)
3746 .Case("xpsr_nzcvq", 0x803)
3747 .Case("xpsr_g", 0x403)
3748 .Case("xpsr_nzcvqg", 0xc03)
3749 .Case("ipsr", 0x805)
3750 .Case("epsr", 0x806)
3751 .Case("iepsr", 0x807)
3754 .Case("primask", 0x810)
3755 .Case("basepri", 0x811)
3756 .Case("basepri_max", 0x812)
3757 .Case("faultmask", 0x813)
3758 .Case("control", 0x814)
3761 if (FlagsVal == ~0U)
3762 return MatchOperand_NoMatch;
3764 if (!hasV7Ops() && FlagsVal >= 0x811 && FlagsVal <= 0x813)
3765 // basepri, basepri_max and faultmask only valid for V7m.
3766 return MatchOperand_NoMatch;
3768 Parser.Lex(); // Eat identifier token.
3769 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3770 return MatchOperand_Success;
3773 // Split spec_reg from flag, example: CPSR_sxf => "CPSR" and "sxf"
3774 size_t Start = 0, Next = Mask.find('_');
3775 StringRef Flags = "";
3776 std::string SpecReg = Mask.slice(Start, Next).lower();
3777 if (Next != StringRef::npos)
3778 Flags = Mask.slice(Next+1, Mask.size());
3780 // FlagsVal contains the complete mask:
3782 // 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3783 unsigned FlagsVal = 0;
3785 if (SpecReg == "apsr") {
3786 FlagsVal = StringSwitch<unsigned>(Flags)
3787 .Case("nzcvq", 0x8) // same as CPSR_f
3788 .Case("g", 0x4) // same as CPSR_s
3789 .Case("nzcvqg", 0xc) // same as CPSR_fs
3792 if (FlagsVal == ~0U) {
3794 return MatchOperand_NoMatch;
3796 FlagsVal = 8; // No flag
3798 } else if (SpecReg == "cpsr" || SpecReg == "spsr") {
3799 // cpsr_all is an alias for cpsr_fc, as is plain cpsr.
3800 if (Flags == "all" || Flags == "")
3802 for (int i = 0, e = Flags.size(); i != e; ++i) {
3803 unsigned Flag = StringSwitch<unsigned>(Flags.substr(i, 1))
3810 // If some specific flag is already set, it means that some letter is
3811 // present more than once, this is not acceptable.
3812 if (FlagsVal == ~0U || (FlagsVal & Flag))
3813 return MatchOperand_NoMatch;
3816 } else // No match for special register.
3817 return MatchOperand_NoMatch;
3819 // Special register without flags is NOT equivalent to "fc" flags.
3820 // NOTE: This is a divergence from gas' behavior. Uncommenting the following
3821 // two lines would enable gas compatibility at the expense of breaking
3827 // Bit 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3828 if (SpecReg == "spsr")
3831 Parser.Lex(); // Eat identifier token.
3832 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3833 return MatchOperand_Success;
3836 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3837 parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands, StringRef Op,
3838 int Low, int High) {
3839 const AsmToken &Tok = Parser.getTok();
3840 if (Tok.isNot(AsmToken::Identifier)) {
3841 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3842 return MatchOperand_ParseFail;
3844 StringRef ShiftName = Tok.getString();
3845 std::string LowerOp = Op.lower();
3846 std::string UpperOp = Op.upper();
3847 if (ShiftName != LowerOp && ShiftName != UpperOp) {
3848 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3849 return MatchOperand_ParseFail;
3851 Parser.Lex(); // Eat shift type token.
3853 // There must be a '#' and a shift amount.
3854 if (Parser.getTok().isNot(AsmToken::Hash) &&
3855 Parser.getTok().isNot(AsmToken::Dollar)) {
3856 Error(Parser.getTok().getLoc(), "'#' expected");
3857 return MatchOperand_ParseFail;
3859 Parser.Lex(); // Eat hash token.
3861 const MCExpr *ShiftAmount;
3862 SMLoc Loc = Parser.getTok().getLoc();
3864 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
3865 Error(Loc, "illegal expression");
3866 return MatchOperand_ParseFail;
3868 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3870 Error(Loc, "constant expression expected");
3871 return MatchOperand_ParseFail;
3873 int Val = CE->getValue();
3874 if (Val < Low || Val > High) {
3875 Error(Loc, "immediate value out of range");
3876 return MatchOperand_ParseFail;
3879 Operands.push_back(ARMOperand::CreateImm(CE, Loc, EndLoc));
3881 return MatchOperand_Success;
3884 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3885 parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3886 const AsmToken &Tok = Parser.getTok();
3887 SMLoc S = Tok.getLoc();
3888 if (Tok.isNot(AsmToken::Identifier)) {
3889 Error(S, "'be' or 'le' operand expected");
3890 return MatchOperand_ParseFail;
3892 int Val = StringSwitch<int>(Tok.getString().lower())
3896 Parser.Lex(); // Eat the token.
3899 Error(S, "'be' or 'le' operand expected");
3900 return MatchOperand_ParseFail;
3902 Operands.push_back(ARMOperand::CreateImm(MCConstantExpr::Create(Val,
3904 S, Tok.getEndLoc()));
3905 return MatchOperand_Success;
3908 /// parseShifterImm - Parse the shifter immediate operand for SSAT/USAT
3909 /// instructions. Legal values are:
3910 /// lsl #n 'n' in [0,31]
3911 /// asr #n 'n' in [1,32]
3912 /// n == 32 encoded as n == 0.
3913 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3914 parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3915 const AsmToken &Tok = Parser.getTok();
3916 SMLoc S = Tok.getLoc();
3917 if (Tok.isNot(AsmToken::Identifier)) {
3918 Error(S, "shift operator 'asr' or 'lsl' expected");
3919 return MatchOperand_ParseFail;
3921 StringRef ShiftName = Tok.getString();
3923 if (ShiftName == "lsl" || ShiftName == "LSL")
3925 else if (ShiftName == "asr" || ShiftName == "ASR")
3928 Error(S, "shift operator 'asr' or 'lsl' expected");
3929 return MatchOperand_ParseFail;
3931 Parser.Lex(); // Eat the operator.
3933 // A '#' and a shift amount.
3934 if (Parser.getTok().isNot(AsmToken::Hash) &&
3935 Parser.getTok().isNot(AsmToken::Dollar)) {
3936 Error(Parser.getTok().getLoc(), "'#' expected");
3937 return MatchOperand_ParseFail;
3939 Parser.Lex(); // Eat hash token.
3940 SMLoc ExLoc = Parser.getTok().getLoc();
3942 const MCExpr *ShiftAmount;
3944 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
3945 Error(ExLoc, "malformed shift expression");
3946 return MatchOperand_ParseFail;
3948 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3950 Error(ExLoc, "shift amount must be an immediate");
3951 return MatchOperand_ParseFail;
3954 int64_t Val = CE->getValue();
3956 // Shift amount must be in [1,32]
3957 if (Val < 1 || Val > 32) {
3958 Error(ExLoc, "'asr' shift amount must be in range [1,32]");
3959 return MatchOperand_ParseFail;
3961 // asr #32 encoded as asr #0, but is not allowed in Thumb2 mode.
3962 if (isThumb() && Val == 32) {
3963 Error(ExLoc, "'asr #32' shift amount not allowed in Thumb mode");
3964 return MatchOperand_ParseFail;
3966 if (Val == 32) Val = 0;
3968 // Shift amount must be in [1,32]
3969 if (Val < 0 || Val > 31) {
3970 Error(ExLoc, "'lsr' shift amount must be in range [0,31]");
3971 return MatchOperand_ParseFail;
3975 Operands.push_back(ARMOperand::CreateShifterImm(isASR, Val, S, EndLoc));
3977 return MatchOperand_Success;
3980 /// parseRotImm - Parse the shifter immediate operand for SXTB/UXTB family
3981 /// of instructions. Legal values are:
3982 /// ror #n 'n' in {0, 8, 16, 24}
3983 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3984 parseRotImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3985 const AsmToken &Tok = Parser.getTok();
3986 SMLoc S = Tok.getLoc();
3987 if (Tok.isNot(AsmToken::Identifier))
3988 return MatchOperand_NoMatch;
3989 StringRef ShiftName = Tok.getString();
3990 if (ShiftName != "ror" && ShiftName != "ROR")
3991 return MatchOperand_NoMatch;
3992 Parser.Lex(); // Eat the operator.
3994 // A '#' and a rotate amount.
3995 if (Parser.getTok().isNot(AsmToken::Hash) &&
3996 Parser.getTok().isNot(AsmToken::Dollar)) {
3997 Error(Parser.getTok().getLoc(), "'#' expected");
3998 return MatchOperand_ParseFail;
4000 Parser.Lex(); // Eat hash token.
4001 SMLoc ExLoc = Parser.getTok().getLoc();
4003 const MCExpr *ShiftAmount;
4005 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
4006 Error(ExLoc, "malformed rotate expression");
4007 return MatchOperand_ParseFail;
4009 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
4011 Error(ExLoc, "rotate amount must be an immediate");
4012 return MatchOperand_ParseFail;
4015 int64_t Val = CE->getValue();
4016 // Shift amount must be in {0, 8, 16, 24} (0 is undocumented extension)
4017 // normally, zero is represented in asm by omitting the rotate operand
4019 if (Val != 8 && Val != 16 && Val != 24 && Val != 0) {
4020 Error(ExLoc, "'ror' rotate amount must be 8, 16, or 24");
4021 return MatchOperand_ParseFail;
4024 Operands.push_back(ARMOperand::CreateRotImm(Val, S, EndLoc));
4026 return MatchOperand_Success;
4029 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4030 parseBitfield(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4031 SMLoc S = Parser.getTok().getLoc();
4032 // The bitfield descriptor is really two operands, the LSB and the width.
4033 if (Parser.getTok().isNot(AsmToken::Hash) &&
4034 Parser.getTok().isNot(AsmToken::Dollar)) {
4035 Error(Parser.getTok().getLoc(), "'#' expected");
4036 return MatchOperand_ParseFail;
4038 Parser.Lex(); // Eat hash token.
4040 const MCExpr *LSBExpr;
4041 SMLoc E = Parser.getTok().getLoc();
4042 if (getParser().parseExpression(LSBExpr)) {
4043 Error(E, "malformed immediate expression");
4044 return MatchOperand_ParseFail;
4046 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LSBExpr);
4048 Error(E, "'lsb' operand must be an immediate");
4049 return MatchOperand_ParseFail;
4052 int64_t LSB = CE->getValue();
4053 // The LSB must be in the range [0,31]
4054 if (LSB < 0 || LSB > 31) {
4055 Error(E, "'lsb' operand must be in the range [0,31]");
4056 return MatchOperand_ParseFail;
4058 E = Parser.getTok().getLoc();
4060 // Expect another immediate operand.
4061 if (Parser.getTok().isNot(AsmToken::Comma)) {
4062 Error(Parser.getTok().getLoc(), "too few operands");
4063 return MatchOperand_ParseFail;
4065 Parser.Lex(); // Eat hash token.
4066 if (Parser.getTok().isNot(AsmToken::Hash) &&
4067 Parser.getTok().isNot(AsmToken::Dollar)) {
4068 Error(Parser.getTok().getLoc(), "'#' expected");
4069 return MatchOperand_ParseFail;
4071 Parser.Lex(); // Eat hash token.
4073 const MCExpr *WidthExpr;
4075 if (getParser().parseExpression(WidthExpr, EndLoc)) {
4076 Error(E, "malformed immediate expression");
4077 return MatchOperand_ParseFail;
4079 CE = dyn_cast<MCConstantExpr>(WidthExpr);
4081 Error(E, "'width' operand must be an immediate");
4082 return MatchOperand_ParseFail;
4085 int64_t Width = CE->getValue();
4086 // The LSB must be in the range [1,32-lsb]
4087 if (Width < 1 || Width > 32 - LSB) {
4088 Error(E, "'width' operand must be in the range [1,32-lsb]");
4089 return MatchOperand_ParseFail;
4092 Operands.push_back(ARMOperand::CreateBitfield(LSB, Width, S, EndLoc));
4094 return MatchOperand_Success;
4097 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4098 parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4099 // Check for a post-index addressing register operand. Specifically:
4100 // postidx_reg := '+' register {, shift}
4101 // | '-' register {, shift}
4102 // | register {, shift}
4104 // This method must return MatchOperand_NoMatch without consuming any tokens
4105 // in the case where there is no match, as other alternatives take other
4107 AsmToken Tok = Parser.getTok();
4108 SMLoc S = Tok.getLoc();
4109 bool haveEaten = false;
4111 if (Tok.is(AsmToken::Plus)) {
4112 Parser.Lex(); // Eat the '+' token.
4114 } else if (Tok.is(AsmToken::Minus)) {
4115 Parser.Lex(); // Eat the '-' token.
4120 SMLoc E = Parser.getTok().getEndLoc();
4121 int Reg = tryParseRegister();
4124 return MatchOperand_NoMatch;
4125 Error(Parser.getTok().getLoc(), "register expected");
4126 return MatchOperand_ParseFail;
4129 ARM_AM::ShiftOpc ShiftTy = ARM_AM::no_shift;
4130 unsigned ShiftImm = 0;
4131 if (Parser.getTok().is(AsmToken::Comma)) {
4132 Parser.Lex(); // Eat the ','.
4133 if (parseMemRegOffsetShift(ShiftTy, ShiftImm))
4134 return MatchOperand_ParseFail;
4136 // FIXME: Only approximates end...may include intervening whitespace.
4137 E = Parser.getTok().getLoc();
4140 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ShiftTy,
4143 return MatchOperand_Success;
4146 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4147 parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4148 // Check for a post-index addressing register operand. Specifically:
4149 // am3offset := '+' register
4156 // This method must return MatchOperand_NoMatch without consuming any tokens
4157 // in the case where there is no match, as other alternatives take other
4159 AsmToken Tok = Parser.getTok();
4160 SMLoc S = Tok.getLoc();
4162 // Do immediates first, as we always parse those if we have a '#'.
4163 if (Parser.getTok().is(AsmToken::Hash) ||
4164 Parser.getTok().is(AsmToken::Dollar)) {
4165 Parser.Lex(); // Eat '#' or '$'.
4166 // Explicitly look for a '-', as we need to encode negative zero
4168 bool isNegative = Parser.getTok().is(AsmToken::Minus);
4169 const MCExpr *Offset;
4171 if (getParser().parseExpression(Offset, E))
4172 return MatchOperand_ParseFail;
4173 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4175 Error(S, "constant expression expected");
4176 return MatchOperand_ParseFail;
4178 // Negative zero is encoded as the flag value INT32_MIN.
4179 int32_t Val = CE->getValue();
4180 if (isNegative && Val == 0)
4184 ARMOperand::CreateImm(MCConstantExpr::Create(Val, getContext()), S, E));
4186 return MatchOperand_Success;
4190 bool haveEaten = false;
4192 if (Tok.is(AsmToken::Plus)) {
4193 Parser.Lex(); // Eat the '+' token.
4195 } else if (Tok.is(AsmToken::Minus)) {
4196 Parser.Lex(); // Eat the '-' token.
4201 Tok = Parser.getTok();
4202 int Reg = tryParseRegister();
4205 return MatchOperand_NoMatch;
4206 Error(Tok.getLoc(), "register expected");
4207 return MatchOperand_ParseFail;
4210 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ARM_AM::no_shift,
4211 0, S, Tok.getEndLoc()));
4213 return MatchOperand_Success;
4216 /// Convert parsed operands to MCInst. Needed here because this instruction
4217 /// only has two register operands, but multiplication is commutative so
4218 /// assemblers should accept both "mul rD, rN, rD" and "mul rD, rD, rN".
4220 cvtThumbMultiply(MCInst &Inst,
4221 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4222 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4223 ((ARMOperand*)Operands[1])->addCCOutOperands(Inst, 1);
4224 // If we have a three-operand form, make sure to set Rn to be the operand
4225 // that isn't the same as Rd.
4227 if (Operands.size() == 6 &&
4228 ((ARMOperand*)Operands[4])->getReg() ==
4229 ((ARMOperand*)Operands[3])->getReg())
4231 ((ARMOperand*)Operands[RegOp])->addRegOperands(Inst, 1);
4232 Inst.addOperand(Inst.getOperand(0));
4233 ((ARMOperand*)Operands[2])->addCondCodeOperands(Inst, 2);
4237 cvtThumbBranches(MCInst &Inst,
4238 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4239 int CondOp = -1, ImmOp = -1;
4240 switch(Inst.getOpcode()) {
4242 case ARM::tBcc: CondOp = 1; ImmOp = 2; break;
4245 case ARM::t2Bcc: CondOp = 1; ImmOp = 3; break;
4247 default: llvm_unreachable("Unexpected instruction in cvtThumbBranches");
4249 // first decide whether or not the branch should be conditional
4250 // by looking at it's location relative to an IT block
4252 // inside an IT block we cannot have any conditional branches. any
4253 // such instructions needs to be converted to unconditional form
4254 switch(Inst.getOpcode()) {
4255 case ARM::tBcc: Inst.setOpcode(ARM::tB); break;
4256 case ARM::t2Bcc: Inst.setOpcode(ARM::t2B); break;
4259 // outside IT blocks we can only have unconditional branches with AL
4260 // condition code or conditional branches with non-AL condition code
4261 unsigned Cond = static_cast<ARMOperand*>(Operands[CondOp])->getCondCode();
4262 switch(Inst.getOpcode()) {
4265 Inst.setOpcode(Cond == ARMCC::AL ? ARM::tB : ARM::tBcc);
4269 Inst.setOpcode(Cond == ARMCC::AL ? ARM::t2B : ARM::t2Bcc);
4274 // now decide on encoding size based on branch target range
4275 switch(Inst.getOpcode()) {
4276 // classify tB as either t2B or t1B based on range of immediate operand
4278 ARMOperand* op = static_cast<ARMOperand*>(Operands[ImmOp]);
4279 if(!op->isSignedOffset<11, 1>() && isThumbTwo())
4280 Inst.setOpcode(ARM::t2B);
4283 // classify tBcc as either t2Bcc or t1Bcc based on range of immediate operand
4285 ARMOperand* op = static_cast<ARMOperand*>(Operands[ImmOp]);
4286 if(!op->isSignedOffset<8, 1>() && isThumbTwo())
4287 Inst.setOpcode(ARM::t2Bcc);
4291 ((ARMOperand*)Operands[ImmOp])->addImmOperands(Inst, 1);
4292 ((ARMOperand*)Operands[CondOp])->addCondCodeOperands(Inst, 2);
4295 /// Parse an ARM memory expression, return false if successful else return true
4296 /// or an error. The first token must be a '[' when called.
4298 parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4300 assert(Parser.getTok().is(AsmToken::LBrac) &&
4301 "Token is not a Left Bracket");
4302 S = Parser.getTok().getLoc();
4303 Parser.Lex(); // Eat left bracket token.
4305 const AsmToken &BaseRegTok = Parser.getTok();
4306 int BaseRegNum = tryParseRegister();
4307 if (BaseRegNum == -1)
4308 return Error(BaseRegTok.getLoc(), "register expected");
4310 // The next token must either be a comma, a colon or a closing bracket.
4311 const AsmToken &Tok = Parser.getTok();
4312 if (!Tok.is(AsmToken::Colon) && !Tok.is(AsmToken::Comma) &&
4313 !Tok.is(AsmToken::RBrac))
4314 return Error(Tok.getLoc(), "malformed memory operand");
4316 if (Tok.is(AsmToken::RBrac)) {
4317 E = Tok.getEndLoc();
4318 Parser.Lex(); // Eat right bracket token.
4320 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0, ARM_AM::no_shift,
4321 0, 0, false, S, E));
4323 // If there's a pre-indexing writeback marker, '!', just add it as a token
4324 // operand. It's rather odd, but syntactically valid.
4325 if (Parser.getTok().is(AsmToken::Exclaim)) {
4326 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4327 Parser.Lex(); // Eat the '!'.
4333 assert((Tok.is(AsmToken::Colon) || Tok.is(AsmToken::Comma)) &&
4334 "Lost colon or comma in memory operand?!");
4335 if (Tok.is(AsmToken::Comma)) {
4336 Parser.Lex(); // Eat the comma.
4339 // If we have a ':', it's an alignment specifier.
4340 if (Parser.getTok().is(AsmToken::Colon)) {
4341 Parser.Lex(); // Eat the ':'.
4342 E = Parser.getTok().getLoc();
4345 if (getParser().parseExpression(Expr))
4348 // The expression has to be a constant. Memory references with relocations
4349 // don't come through here, as they use the <label> forms of the relevant
4351 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4353 return Error (E, "constant expression expected");
4356 switch (CE->getValue()) {
4359 "alignment specifier must be 16, 32, 64, 128, or 256 bits");
4360 case 16: Align = 2; break;
4361 case 32: Align = 4; break;
4362 case 64: Align = 8; break;
4363 case 128: Align = 16; break;
4364 case 256: Align = 32; break;
4367 // Now we should have the closing ']'
4368 if (Parser.getTok().isNot(AsmToken::RBrac))
4369 return Error(Parser.getTok().getLoc(), "']' expected");
4370 E = Parser.getTok().getEndLoc();
4371 Parser.Lex(); // Eat right bracket token.
4373 // Don't worry about range checking the value here. That's handled by
4374 // the is*() predicates.
4375 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0,
4376 ARM_AM::no_shift, 0, Align,
4379 // If there's a pre-indexing writeback marker, '!', just add it as a token
4381 if (Parser.getTok().is(AsmToken::Exclaim)) {
4382 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4383 Parser.Lex(); // Eat the '!'.
4389 // If we have a '#', it's an immediate offset, else assume it's a register
4390 // offset. Be friendly and also accept a plain integer (without a leading
4391 // hash) for gas compatibility.
4392 if (Parser.getTok().is(AsmToken::Hash) ||
4393 Parser.getTok().is(AsmToken::Dollar) ||
4394 Parser.getTok().is(AsmToken::Integer)) {
4395 if (Parser.getTok().isNot(AsmToken::Integer))
4396 Parser.Lex(); // Eat '#' or '$'.
4397 E = Parser.getTok().getLoc();
4399 bool isNegative = getParser().getTok().is(AsmToken::Minus);
4400 const MCExpr *Offset;
4401 if (getParser().parseExpression(Offset))
4404 // The expression has to be a constant. Memory references with relocations
4405 // don't come through here, as they use the <label> forms of the relevant
4407 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4409 return Error (E, "constant expression expected");
4411 // If the constant was #-0, represent it as INT32_MIN.
4412 int32_t Val = CE->getValue();
4413 if (isNegative && Val == 0)
4414 CE = MCConstantExpr::Create(INT32_MIN, getContext());
4416 // Now we should have the closing ']'
4417 if (Parser.getTok().isNot(AsmToken::RBrac))
4418 return Error(Parser.getTok().getLoc(), "']' expected");
4419 E = Parser.getTok().getEndLoc();
4420 Parser.Lex(); // Eat right bracket token.
4422 // Don't worry about range checking the value here. That's handled by
4423 // the is*() predicates.
4424 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, CE, 0,
4425 ARM_AM::no_shift, 0, 0,
4428 // If there's a pre-indexing writeback marker, '!', just add it as a token
4430 if (Parser.getTok().is(AsmToken::Exclaim)) {
4431 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4432 Parser.Lex(); // Eat the '!'.
4438 // The register offset is optionally preceded by a '+' or '-'
4439 bool isNegative = false;
4440 if (Parser.getTok().is(AsmToken::Minus)) {
4442 Parser.Lex(); // Eat the '-'.
4443 } else if (Parser.getTok().is(AsmToken::Plus)) {
4445 Parser.Lex(); // Eat the '+'.
4448 E = Parser.getTok().getLoc();
4449 int OffsetRegNum = tryParseRegister();
4450 if (OffsetRegNum == -1)
4451 return Error(E, "register expected");
4453 // If there's a shift operator, handle it.
4454 ARM_AM::ShiftOpc ShiftType = ARM_AM::no_shift;
4455 unsigned ShiftImm = 0;
4456 if (Parser.getTok().is(AsmToken::Comma)) {
4457 Parser.Lex(); // Eat the ','.
4458 if (parseMemRegOffsetShift(ShiftType, ShiftImm))
4462 // Now we should have the closing ']'
4463 if (Parser.getTok().isNot(AsmToken::RBrac))
4464 return Error(Parser.getTok().getLoc(), "']' expected");
4465 E = Parser.getTok().getEndLoc();
4466 Parser.Lex(); // Eat right bracket token.
4468 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, OffsetRegNum,
4469 ShiftType, ShiftImm, 0, isNegative,
4472 // If there's a pre-indexing writeback marker, '!', just add it as a token
4474 if (Parser.getTok().is(AsmToken::Exclaim)) {
4475 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4476 Parser.Lex(); // Eat the '!'.
4482 /// parseMemRegOffsetShift - one of these two:
4483 /// ( lsl | lsr | asr | ror ) , # shift_amount
4485 /// return true if it parses a shift otherwise it returns false.
4486 bool ARMAsmParser::parseMemRegOffsetShift(ARM_AM::ShiftOpc &St,
4488 SMLoc Loc = Parser.getTok().getLoc();
4489 const AsmToken &Tok = Parser.getTok();
4490 if (Tok.isNot(AsmToken::Identifier))
4492 StringRef ShiftName = Tok.getString();
4493 if (ShiftName == "lsl" || ShiftName == "LSL" ||
4494 ShiftName == "asl" || ShiftName == "ASL")
4496 else if (ShiftName == "lsr" || ShiftName == "LSR")
4498 else if (ShiftName == "asr" || ShiftName == "ASR")
4500 else if (ShiftName == "ror" || ShiftName == "ROR")
4502 else if (ShiftName == "rrx" || ShiftName == "RRX")
4505 return Error(Loc, "illegal shift operator");
4506 Parser.Lex(); // Eat shift type token.
4508 // rrx stands alone.
4510 if (St != ARM_AM::rrx) {
4511 Loc = Parser.getTok().getLoc();
4512 // A '#' and a shift amount.
4513 const AsmToken &HashTok = Parser.getTok();
4514 if (HashTok.isNot(AsmToken::Hash) &&
4515 HashTok.isNot(AsmToken::Dollar))
4516 return Error(HashTok.getLoc(), "'#' expected");
4517 Parser.Lex(); // Eat hash token.
4520 if (getParser().parseExpression(Expr))
4522 // Range check the immediate.
4523 // lsl, ror: 0 <= imm <= 31
4524 // lsr, asr: 0 <= imm <= 32
4525 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4527 return Error(Loc, "shift amount must be an immediate");
4528 int64_t Imm = CE->getValue();
4530 ((St == ARM_AM::lsl || St == ARM_AM::ror) && Imm > 31) ||
4531 ((St == ARM_AM::lsr || St == ARM_AM::asr) && Imm > 32))
4532 return Error(Loc, "immediate shift value out of range");
4533 // If <ShiftTy> #0, turn it into a no_shift.
4536 // For consistency, treat lsr #32 and asr #32 as having immediate value 0.
4545 /// parseFPImm - A floating point immediate expression operand.
4546 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4547 parseFPImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4548 // Anything that can accept a floating point constant as an operand
4549 // needs to go through here, as the regular parseExpression is
4552 // This routine still creates a generic Immediate operand, containing
4553 // a bitcast of the 64-bit floating point value. The various operands
4554 // that accept floats can check whether the value is valid for them
4555 // via the standard is*() predicates.
4557 SMLoc S = Parser.getTok().getLoc();
4559 if (Parser.getTok().isNot(AsmToken::Hash) &&
4560 Parser.getTok().isNot(AsmToken::Dollar))
4561 return MatchOperand_NoMatch;
4563 // Disambiguate the VMOV forms that can accept an FP immediate.
4564 // vmov.f32 <sreg>, #imm
4565 // vmov.f64 <dreg>, #imm
4566 // vmov.f32 <dreg>, #imm @ vector f32x2
4567 // vmov.f32 <qreg>, #imm @ vector f32x4
4569 // There are also the NEON VMOV instructions which expect an
4570 // integer constant. Make sure we don't try to parse an FPImm
4572 // vmov.i{8|16|32|64} <dreg|qreg>, #imm
4573 ARMOperand *TyOp = static_cast<ARMOperand*>(Operands[2]);
4574 bool isVmovf = TyOp->isToken() && (TyOp->getToken() == ".f32" ||
4575 TyOp->getToken() == ".f64");
4576 ARMOperand *Mnemonic = static_cast<ARMOperand*>(Operands[0]);
4577 bool isFconst = Mnemonic->isToken() && (Mnemonic->getToken() == "fconstd" ||
4578 Mnemonic->getToken() == "fconsts");
4579 if (!(isVmovf || isFconst))
4580 return MatchOperand_NoMatch;
4582 Parser.Lex(); // Eat '#' or '$'.
4584 // Handle negation, as that still comes through as a separate token.
4585 bool isNegative = false;
4586 if (Parser.getTok().is(AsmToken::Minus)) {
4590 const AsmToken &Tok = Parser.getTok();
4591 SMLoc Loc = Tok.getLoc();
4592 if (Tok.is(AsmToken::Real) && isVmovf) {
4593 APFloat RealVal(APFloat::IEEEsingle, Tok.getString());
4594 uint64_t IntVal = RealVal.bitcastToAPInt().getZExtValue();
4595 // If we had a '-' in front, toggle the sign bit.
4596 IntVal ^= (uint64_t)isNegative << 31;
4597 Parser.Lex(); // Eat the token.
4598 Operands.push_back(ARMOperand::CreateImm(
4599 MCConstantExpr::Create(IntVal, getContext()),
4600 S, Parser.getTok().getLoc()));
4601 return MatchOperand_Success;
4603 // Also handle plain integers. Instructions which allow floating point
4604 // immediates also allow a raw encoded 8-bit value.
4605 if (Tok.is(AsmToken::Integer) && isFconst) {
4606 int64_t Val = Tok.getIntVal();
4607 Parser.Lex(); // Eat the token.
4608 if (Val > 255 || Val < 0) {
4609 Error(Loc, "encoded floating point value out of range");
4610 return MatchOperand_ParseFail;
4612 float RealVal = ARM_AM::getFPImmFloat(Val);
4613 Val = APFloat(RealVal).bitcastToAPInt().getZExtValue();
4615 Operands.push_back(ARMOperand::CreateImm(
4616 MCConstantExpr::Create(Val, getContext()), S,
4617 Parser.getTok().getLoc()));
4618 return MatchOperand_Success;
4621 Error(Loc, "invalid floating point immediate");
4622 return MatchOperand_ParseFail;
4625 /// Parse a arm instruction operand. For now this parses the operand regardless
4626 /// of the mnemonic.
4627 bool ARMAsmParser::parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
4628 StringRef Mnemonic) {
4631 // Check if the current operand has a custom associated parser, if so, try to
4632 // custom parse the operand, or fallback to the general approach.
4633 OperandMatchResultTy ResTy = MatchOperandParserImpl(Operands, Mnemonic);
4634 if (ResTy == MatchOperand_Success)
4636 // If there wasn't a custom match, try the generic matcher below. Otherwise,
4637 // there was a match, but an error occurred, in which case, just return that
4638 // the operand parsing failed.
4639 if (ResTy == MatchOperand_ParseFail)
4642 switch (getLexer().getKind()) {
4644 Error(Parser.getTok().getLoc(), "unexpected token in operand");
4646 case AsmToken::Identifier: {
4647 // If we've seen a branch mnemonic, the next operand must be a label. This
4648 // is true even if the label is a register name. So "br r1" means branch to
4650 bool ExpectLabel = Mnemonic == "b" || Mnemonic == "bl";
4652 if (!tryParseRegisterWithWriteBack(Operands))
4654 int Res = tryParseShiftRegister(Operands);
4655 if (Res == 0) // success
4657 else if (Res == -1) // irrecoverable error
4659 // If this is VMRS, check for the apsr_nzcv operand.
4660 if (Mnemonic == "vmrs" &&
4661 Parser.getTok().getString().equals_lower("apsr_nzcv")) {
4662 S = Parser.getTok().getLoc();
4664 Operands.push_back(ARMOperand::CreateToken("APSR_nzcv", S));
4669 // Fall though for the Identifier case that is not a register or a
4672 case AsmToken::LParen: // parenthesized expressions like (_strcmp-4)
4673 case AsmToken::Integer: // things like 1f and 2b as a branch targets
4674 case AsmToken::String: // quoted label names.
4675 case AsmToken::Dot: { // . as a branch target
4676 // This was not a register so parse other operands that start with an
4677 // identifier (like labels) as expressions and create them as immediates.
4678 const MCExpr *IdVal;
4679 S = Parser.getTok().getLoc();
4680 if (getParser().parseExpression(IdVal))
4682 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4683 Operands.push_back(ARMOperand::CreateImm(IdVal, S, E));
4686 case AsmToken::LBrac:
4687 return parseMemory(Operands);
4688 case AsmToken::LCurly:
4689 return parseRegisterList(Operands);
4690 case AsmToken::Dollar:
4691 case AsmToken::Hash: {
4692 // #42 -> immediate.
4693 S = Parser.getTok().getLoc();
4696 if (Parser.getTok().isNot(AsmToken::Colon)) {
4697 bool isNegative = Parser.getTok().is(AsmToken::Minus);
4698 const MCExpr *ImmVal;
4699 if (getParser().parseExpression(ImmVal))
4701 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ImmVal);
4703 int32_t Val = CE->getValue();
4704 if (isNegative && Val == 0)
4705 ImmVal = MCConstantExpr::Create(INT32_MIN, getContext());
4707 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4708 Operands.push_back(ARMOperand::CreateImm(ImmVal, S, E));
4710 // There can be a trailing '!' on operands that we want as a separate
4711 // '!' Token operand. Handle that here. For example, the compatibility
4712 // alias for 'srsdb sp!, #imm' is 'srsdb #imm!'.
4713 if (Parser.getTok().is(AsmToken::Exclaim)) {
4714 Operands.push_back(ARMOperand::CreateToken(Parser.getTok().getString(),
4715 Parser.getTok().getLoc()));
4716 Parser.Lex(); // Eat exclaim token
4720 // w/ a ':' after the '#', it's just like a plain ':'.
4723 case AsmToken::Colon: {
4724 // ":lower16:" and ":upper16:" expression prefixes
4725 // FIXME: Check it's an expression prefix,
4726 // e.g. (FOO - :lower16:BAR) isn't legal.
4727 ARMMCExpr::VariantKind RefKind;
4728 if (parsePrefix(RefKind))
4731 const MCExpr *SubExprVal;
4732 if (getParser().parseExpression(SubExprVal))
4735 const MCExpr *ExprVal = ARMMCExpr::Create(RefKind, SubExprVal,
4737 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4738 Operands.push_back(ARMOperand::CreateImm(ExprVal, S, E));
4741 case AsmToken::Equal: {
4742 if (Mnemonic != "ldr") // only parse for ldr pseudo (e.g. ldr r0, =val)
4743 return Error(Parser.getTok().getLoc(), "unexpected token in operand");
4745 Parser.Lex(); // Eat '='
4746 const MCExpr *SubExprVal;
4747 if (getParser().parseExpression(SubExprVal))
4749 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4751 const MCExpr *CPLoc = getTargetStreamer().addConstantPoolEntry(SubExprVal);
4752 Operands.push_back(ARMOperand::CreateImm(CPLoc, S, E));
4758 // parsePrefix - Parse ARM 16-bit relocations expression prefix, i.e.
4759 // :lower16: and :upper16:.
4760 bool ARMAsmParser::parsePrefix(ARMMCExpr::VariantKind &RefKind) {
4761 RefKind = ARMMCExpr::VK_ARM_None;
4763 // consume an optional '#' (GNU compatibility)
4764 if (getLexer().is(AsmToken::Hash))
4767 // :lower16: and :upper16: modifiers
4768 assert(getLexer().is(AsmToken::Colon) && "expected a :");
4769 Parser.Lex(); // Eat ':'
4771 if (getLexer().isNot(AsmToken::Identifier)) {
4772 Error(Parser.getTok().getLoc(), "expected prefix identifier in operand");
4776 StringRef IDVal = Parser.getTok().getIdentifier();
4777 if (IDVal == "lower16") {
4778 RefKind = ARMMCExpr::VK_ARM_LO16;
4779 } else if (IDVal == "upper16") {
4780 RefKind = ARMMCExpr::VK_ARM_HI16;
4782 Error(Parser.getTok().getLoc(), "unexpected prefix in operand");
4787 if (getLexer().isNot(AsmToken::Colon)) {
4788 Error(Parser.getTok().getLoc(), "unexpected token after prefix");
4791 Parser.Lex(); // Eat the last ':'
4795 /// \brief Given a mnemonic, split out possible predication code and carry
4796 /// setting letters to form a canonical mnemonic and flags.
4798 // FIXME: Would be nice to autogen this.
4799 // FIXME: This is a bit of a maze of special cases.
4800 StringRef ARMAsmParser::splitMnemonic(StringRef Mnemonic,
4801 unsigned &PredicationCode,
4803 unsigned &ProcessorIMod,
4804 StringRef &ITMask) {
4805 PredicationCode = ARMCC::AL;
4806 CarrySetting = false;
4809 // Ignore some mnemonics we know aren't predicated forms.
4811 // FIXME: Would be nice to autogen this.
4812 if ((Mnemonic == "movs" && isThumb()) ||
4813 Mnemonic == "teq" || Mnemonic == "vceq" || Mnemonic == "svc" ||
4814 Mnemonic == "mls" || Mnemonic == "smmls" || Mnemonic == "vcls" ||
4815 Mnemonic == "vmls" || Mnemonic == "vnmls" || Mnemonic == "vacge" ||
4816 Mnemonic == "vcge" || Mnemonic == "vclt" || Mnemonic == "vacgt" ||
4817 Mnemonic == "vaclt" || Mnemonic == "vacle" || Mnemonic == "hlt" ||
4818 Mnemonic == "vcgt" || Mnemonic == "vcle" || Mnemonic == "smlal" ||
4819 Mnemonic == "umaal" || Mnemonic == "umlal" || Mnemonic == "vabal" ||
4820 Mnemonic == "vmlal" || Mnemonic == "vpadal" || Mnemonic == "vqdmlal" ||
4821 Mnemonic == "fmuls" || Mnemonic == "vmaxnm" || Mnemonic == "vminnm" ||
4822 Mnemonic == "vcvta" || Mnemonic == "vcvtn" || Mnemonic == "vcvtp" ||
4823 Mnemonic == "vcvtm" || Mnemonic == "vrinta" || Mnemonic == "vrintn" ||
4824 Mnemonic == "vrintp" || Mnemonic == "vrintm" || Mnemonic.startswith("vsel"))
4827 // First, split out any predication code. Ignore mnemonics we know aren't
4828 // predicated but do have a carry-set and so weren't caught above.
4829 if (Mnemonic != "adcs" && Mnemonic != "bics" && Mnemonic != "movs" &&
4830 Mnemonic != "muls" && Mnemonic != "smlals" && Mnemonic != "smulls" &&
4831 Mnemonic != "umlals" && Mnemonic != "umulls" && Mnemonic != "lsls" &&
4832 Mnemonic != "sbcs" && Mnemonic != "rscs") {
4833 unsigned CC = StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2))
4834 .Case("eq", ARMCC::EQ)
4835 .Case("ne", ARMCC::NE)
4836 .Case("hs", ARMCC::HS)
4837 .Case("cs", ARMCC::HS)
4838 .Case("lo", ARMCC::LO)
4839 .Case("cc", ARMCC::LO)
4840 .Case("mi", ARMCC::MI)
4841 .Case("pl", ARMCC::PL)
4842 .Case("vs", ARMCC::VS)
4843 .Case("vc", ARMCC::VC)
4844 .Case("hi", ARMCC::HI)
4845 .Case("ls", ARMCC::LS)
4846 .Case("ge", ARMCC::GE)
4847 .Case("lt", ARMCC::LT)
4848 .Case("gt", ARMCC::GT)
4849 .Case("le", ARMCC::LE)
4850 .Case("al", ARMCC::AL)
4853 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 2);
4854 PredicationCode = CC;
4858 // Next, determine if we have a carry setting bit. We explicitly ignore all
4859 // the instructions we know end in 's'.
4860 if (Mnemonic.endswith("s") &&
4861 !(Mnemonic == "cps" || Mnemonic == "mls" ||
4862 Mnemonic == "mrs" || Mnemonic == "smmls" || Mnemonic == "vabs" ||
4863 Mnemonic == "vcls" || Mnemonic == "vmls" || Mnemonic == "vmrs" ||
4864 Mnemonic == "vnmls" || Mnemonic == "vqabs" || Mnemonic == "vrecps" ||
4865 Mnemonic == "vrsqrts" || Mnemonic == "srs" || Mnemonic == "flds" ||
4866 Mnemonic == "fmrs" || Mnemonic == "fsqrts" || Mnemonic == "fsubs" ||
4867 Mnemonic == "fsts" || Mnemonic == "fcpys" || Mnemonic == "fdivs" ||
4868 Mnemonic == "fmuls" || Mnemonic == "fcmps" || Mnemonic == "fcmpzs" ||
4869 Mnemonic == "vfms" || Mnemonic == "vfnms" || Mnemonic == "fconsts" ||
4870 (Mnemonic == "movs" && isThumb()))) {
4871 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1);
4872 CarrySetting = true;
4875 // The "cps" instruction can have a interrupt mode operand which is glued into
4876 // the mnemonic. Check if this is the case, split it and parse the imod op
4877 if (Mnemonic.startswith("cps")) {
4878 // Split out any imod code.
4880 StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2, 2))
4881 .Case("ie", ARM_PROC::IE)
4882 .Case("id", ARM_PROC::ID)
4885 Mnemonic = Mnemonic.slice(0, Mnemonic.size()-2);
4886 ProcessorIMod = IMod;
4890 // The "it" instruction has the condition mask on the end of the mnemonic.
4891 if (Mnemonic.startswith("it")) {
4892 ITMask = Mnemonic.slice(2, Mnemonic.size());
4893 Mnemonic = Mnemonic.slice(0, 2);
4899 /// \brief Given a canonical mnemonic, determine if the instruction ever allows
4900 /// inclusion of carry set or predication code operands.
4902 // FIXME: It would be nice to autogen this.
4904 getMnemonicAcceptInfo(StringRef Mnemonic, StringRef FullInst,
4905 bool &CanAcceptCarrySet, bool &CanAcceptPredicationCode) {
4906 if (Mnemonic == "and" || Mnemonic == "lsl" || Mnemonic == "lsr" ||
4907 Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" ||
4908 Mnemonic == "add" || Mnemonic == "adc" ||
4909 Mnemonic == "mul" || Mnemonic == "bic" || Mnemonic == "asr" ||
4910 Mnemonic == "orr" || Mnemonic == "mvn" ||
4911 Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
4912 Mnemonic == "sbc" || Mnemonic == "eor" || Mnemonic == "neg" ||
4913 Mnemonic == "vfm" || Mnemonic == "vfnm" ||
4914 (!isThumb() && (Mnemonic == "smull" || Mnemonic == "mov" ||
4915 Mnemonic == "mla" || Mnemonic == "smlal" ||
4916 Mnemonic == "umlal" || Mnemonic == "umull"))) {
4917 CanAcceptCarrySet = true;
4919 CanAcceptCarrySet = false;
4921 if (Mnemonic == "bkpt" || Mnemonic == "cbnz" || Mnemonic == "setend" ||
4922 Mnemonic == "cps" || Mnemonic == "it" || Mnemonic == "cbz" ||
4923 Mnemonic == "trap" || Mnemonic == "hlt" || Mnemonic.startswith("crc32") ||
4924 Mnemonic.startswith("cps") || Mnemonic.startswith("vsel") ||
4925 Mnemonic == "vmaxnm" || Mnemonic == "vminnm" || Mnemonic == "vcvta" ||
4926 Mnemonic == "vcvtn" || Mnemonic == "vcvtp" || Mnemonic == "vcvtm" ||
4927 Mnemonic == "vrinta" || Mnemonic == "vrintn" || Mnemonic == "vrintp" ||
4928 Mnemonic == "vrintm" || Mnemonic.startswith("aes") ||
4929 Mnemonic.startswith("sha1") || Mnemonic.startswith("sha256") ||
4930 (FullInst.startswith("vmull") && FullInst.endswith(".p64"))) {
4931 // These mnemonics are never predicable
4932 CanAcceptPredicationCode = false;
4933 } else if (!isThumb()) {
4934 // Some instructions are only predicable in Thumb mode
4935 CanAcceptPredicationCode
4936 = Mnemonic != "cdp2" && Mnemonic != "clrex" && Mnemonic != "mcr2" &&
4937 Mnemonic != "mcrr2" && Mnemonic != "mrc2" && Mnemonic != "mrrc2" &&
4938 Mnemonic != "dmb" && Mnemonic != "dsb" && Mnemonic != "isb" &&
4939 Mnemonic != "pld" && Mnemonic != "pli" && Mnemonic != "pldw" &&
4940 Mnemonic != "ldc2" && Mnemonic != "ldc2l" &&
4941 Mnemonic != "stc2" && Mnemonic != "stc2l" &&
4942 !Mnemonic.startswith("rfe") && !Mnemonic.startswith("srs");
4943 } else if (isThumbOne()) {
4945 CanAcceptPredicationCode = Mnemonic != "movs";
4947 CanAcceptPredicationCode = Mnemonic != "nop" && Mnemonic != "movs";
4949 CanAcceptPredicationCode = true;
4952 bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
4953 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4954 // FIXME: This is all horribly hacky. We really need a better way to deal
4955 // with optional operands like this in the matcher table.
4957 // The 'mov' mnemonic is special. One variant has a cc_out operand, while
4958 // another does not. Specifically, the MOVW instruction does not. So we
4959 // special case it here and remove the defaulted (non-setting) cc_out
4960 // operand if that's the instruction we're trying to match.
4962 // We do this as post-processing of the explicit operands rather than just
4963 // conditionally adding the cc_out in the first place because we need
4964 // to check the type of the parsed immediate operand.
4965 if (Mnemonic == "mov" && Operands.size() > 4 && !isThumb() &&
4966 !static_cast<ARMOperand*>(Operands[4])->isARMSOImm() &&
4967 static_cast<ARMOperand*>(Operands[4])->isImm0_65535Expr() &&
4968 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4971 // Register-register 'add' for thumb does not have a cc_out operand
4972 // when there are only two register operands.
4973 if (isThumb() && Mnemonic == "add" && Operands.size() == 5 &&
4974 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4975 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4976 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4978 // Register-register 'add' for thumb does not have a cc_out operand
4979 // when it's an ADD Rdm, SP, {Rdm|#imm0_255} instruction. We do
4980 // have to check the immediate range here since Thumb2 has a variant
4981 // that can handle a different range and has a cc_out operand.
4982 if (((isThumb() && Mnemonic == "add") ||
4983 (isThumbTwo() && Mnemonic == "sub")) &&
4984 Operands.size() == 6 &&
4985 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4986 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4987 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::SP &&
4988 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4989 ((Mnemonic == "add" &&static_cast<ARMOperand*>(Operands[5])->isReg()) ||
4990 static_cast<ARMOperand*>(Operands[5])->isImm0_1020s4()))
4992 // For Thumb2, add/sub immediate does not have a cc_out operand for the
4993 // imm0_4095 variant. That's the least-preferred variant when
4994 // selecting via the generic "add" mnemonic, so to know that we
4995 // should remove the cc_out operand, we have to explicitly check that
4996 // it's not one of the other variants. Ugh.
4997 if (isThumbTwo() && (Mnemonic == "add" || Mnemonic == "sub") &&
4998 Operands.size() == 6 &&
4999 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5000 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5001 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5002 // Nest conditions rather than one big 'if' statement for readability.
5004 // If both registers are low, we're in an IT block, and the immediate is
5005 // in range, we should use encoding T1 instead, which has a cc_out.
5007 isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
5008 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) &&
5009 static_cast<ARMOperand*>(Operands[5])->isImm0_7())
5011 // Check against T3. If the second register is the PC, this is an
5012 // alternate form of ADR, which uses encoding T4, so check for that too.
5013 if (static_cast<ARMOperand*>(Operands[4])->getReg() != ARM::PC &&
5014 static_cast<ARMOperand*>(Operands[5])->isT2SOImm())
5017 // Otherwise, we use encoding T4, which does not have a cc_out
5022 // The thumb2 multiply instruction doesn't have a CCOut register, so
5023 // if we have a "mul" mnemonic in Thumb mode, check if we'll be able to
5024 // use the 16-bit encoding or not.
5025 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 6 &&
5026 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5027 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5028 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5029 static_cast<ARMOperand*>(Operands[5])->isReg() &&
5030 // If the registers aren't low regs, the destination reg isn't the
5031 // same as one of the source regs, or the cc_out operand is zero
5032 // outside of an IT block, we have to use the 32-bit encoding, so
5033 // remove the cc_out operand.
5034 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
5035 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
5036 !isARMLowRegister(static_cast<ARMOperand*>(Operands[5])->getReg()) ||
5038 (static_cast<ARMOperand*>(Operands[3])->getReg() !=
5039 static_cast<ARMOperand*>(Operands[5])->getReg() &&
5040 static_cast<ARMOperand*>(Operands[3])->getReg() !=
5041 static_cast<ARMOperand*>(Operands[4])->getReg())))
5044 // Also check the 'mul' syntax variant that doesn't specify an explicit
5045 // destination register.
5046 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 5 &&
5047 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5048 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5049 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5050 // If the registers aren't low regs or the cc_out operand is zero
5051 // outside of an IT block, we have to use the 32-bit encoding, so
5052 // remove the cc_out operand.
5053 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
5054 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
5060 // Register-register 'add/sub' for thumb does not have a cc_out operand
5061 // when it's an ADD/SUB SP, #imm. Be lenient on count since there's also
5062 // the "add/sub SP, SP, #imm" version. If the follow-up operands aren't
5063 // right, this will result in better diagnostics (which operand is off)
5065 if (isThumb() && (Mnemonic == "add" || Mnemonic == "sub") &&
5066 (Operands.size() == 5 || Operands.size() == 6) &&
5067 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5068 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::SP &&
5069 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5070 (static_cast<ARMOperand*>(Operands[4])->isImm() ||
5071 (Operands.size() == 6 &&
5072 static_cast<ARMOperand*>(Operands[5])->isImm())))
5078 bool ARMAsmParser::shouldOmitPredicateOperand(
5079 StringRef Mnemonic, SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
5080 // VRINT{Z, R, X} have a predicate operand in VFP, but not in NEON
5081 unsigned RegIdx = 3;
5082 if ((Mnemonic == "vrintz" || Mnemonic == "vrintx" || Mnemonic == "vrintr") &&
5083 static_cast<ARMOperand *>(Operands[2])->getToken() == ".f32") {
5084 if (static_cast<ARMOperand *>(Operands[3])->isToken() &&
5085 static_cast<ARMOperand *>(Operands[3])->getToken() == ".f32")
5088 if (static_cast<ARMOperand *>(Operands[RegIdx])->isReg() &&
5089 (ARMMCRegisterClasses[ARM::DPRRegClassID]
5090 .contains(static_cast<ARMOperand *>(Operands[RegIdx])->getReg()) ||
5091 ARMMCRegisterClasses[ARM::QPRRegClassID]
5092 .contains(static_cast<ARMOperand *>(Operands[RegIdx])->getReg())))
5098 static bool isDataTypeToken(StringRef Tok) {
5099 return Tok == ".8" || Tok == ".16" || Tok == ".32" || Tok == ".64" ||
5100 Tok == ".i8" || Tok == ".i16" || Tok == ".i32" || Tok == ".i64" ||
5101 Tok == ".u8" || Tok == ".u16" || Tok == ".u32" || Tok == ".u64" ||
5102 Tok == ".s8" || Tok == ".s16" || Tok == ".s32" || Tok == ".s64" ||
5103 Tok == ".p8" || Tok == ".p16" || Tok == ".f32" || Tok == ".f64" ||
5104 Tok == ".f" || Tok == ".d";
5107 // FIXME: This bit should probably be handled via an explicit match class
5108 // in the .td files that matches the suffix instead of having it be
5109 // a literal string token the way it is now.
5110 static bool doesIgnoreDataTypeSuffix(StringRef Mnemonic, StringRef DT) {
5111 return Mnemonic.startswith("vldm") || Mnemonic.startswith("vstm");
5113 static void applyMnemonicAliases(StringRef &Mnemonic, unsigned Features,
5114 unsigned VariantID);
5116 static bool RequiresVFPRegListValidation(StringRef Inst,
5117 bool &AcceptSinglePrecisionOnly,
5118 bool &AcceptDoublePrecisionOnly) {
5119 if (Inst.size() < 7)
5122 if (Inst.startswith("fldm") || Inst.startswith("fstm")) {
5123 StringRef AddressingMode = Inst.substr(4, 2);
5124 if (AddressingMode == "ia" || AddressingMode == "db" ||
5125 AddressingMode == "ea" || AddressingMode == "fd") {
5126 AcceptSinglePrecisionOnly = Inst[6] == 's';
5127 AcceptDoublePrecisionOnly = Inst[6] == 'd' || Inst[6] == 'x';
5135 /// Parse an arm instruction mnemonic followed by its operands.
5136 bool ARMAsmParser::ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
5138 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5139 // FIXME: Can this be done via tablegen in some fashion?
5140 bool RequireVFPRegisterListCheck;
5141 bool AcceptSinglePrecisionOnly;
5142 bool AcceptDoublePrecisionOnly;
5143 RequireVFPRegisterListCheck =
5144 RequiresVFPRegListValidation(Name, AcceptSinglePrecisionOnly,
5145 AcceptDoublePrecisionOnly);
5147 // Apply mnemonic aliases before doing anything else, as the destination
5148 // mnemonic may include suffices and we want to handle them normally.
5149 // The generic tblgen'erated code does this later, at the start of
5150 // MatchInstructionImpl(), but that's too late for aliases that include
5151 // any sort of suffix.
5152 unsigned AvailableFeatures = getAvailableFeatures();
5153 unsigned AssemblerDialect = getParser().getAssemblerDialect();
5154 applyMnemonicAliases(Name, AvailableFeatures, AssemblerDialect);
5156 // First check for the ARM-specific .req directive.
5157 if (Parser.getTok().is(AsmToken::Identifier) &&
5158 Parser.getTok().getIdentifier() == ".req") {
5159 parseDirectiveReq(Name, NameLoc);
5160 // We always return 'error' for this, as we're done with this
5161 // statement and don't need to match the 'instruction."
5165 // Create the leading tokens for the mnemonic, split by '.' characters.
5166 size_t Start = 0, Next = Name.find('.');
5167 StringRef Mnemonic = Name.slice(Start, Next);
5169 // Split out the predication code and carry setting flag from the mnemonic.
5170 unsigned PredicationCode;
5171 unsigned ProcessorIMod;
5174 Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
5175 ProcessorIMod, ITMask);
5177 // In Thumb1, only the branch (B) instruction can be predicated.
5178 if (isThumbOne() && PredicationCode != ARMCC::AL && Mnemonic != "b") {
5179 Parser.eatToEndOfStatement();
5180 return Error(NameLoc, "conditional execution not supported in Thumb1");
5183 Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
5185 // Handle the IT instruction ITMask. Convert it to a bitmask. This
5186 // is the mask as it will be for the IT encoding if the conditional
5187 // encoding has a '1' as it's bit0 (i.e. 't' ==> '1'). In the case
5188 // where the conditional bit0 is zero, the instruction post-processing
5189 // will adjust the mask accordingly.
5190 if (Mnemonic == "it") {
5191 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + 2);
5192 if (ITMask.size() > 3) {
5193 Parser.eatToEndOfStatement();
5194 return Error(Loc, "too many conditions on IT instruction");
5197 for (unsigned i = ITMask.size(); i != 0; --i) {
5198 char pos = ITMask[i - 1];
5199 if (pos != 't' && pos != 'e') {
5200 Parser.eatToEndOfStatement();
5201 return Error(Loc, "illegal IT block condition mask '" + ITMask + "'");
5204 if (ITMask[i - 1] == 't')
5207 Operands.push_back(ARMOperand::CreateITMask(Mask, Loc));
5210 // FIXME: This is all a pretty gross hack. We should automatically handle
5211 // optional operands like this via tblgen.
5213 // Next, add the CCOut and ConditionCode operands, if needed.
5215 // For mnemonics which can ever incorporate a carry setting bit or predication
5216 // code, our matching model involves us always generating CCOut and
5217 // ConditionCode operands to match the mnemonic "as written" and then we let
5218 // the matcher deal with finding the right instruction or generating an
5219 // appropriate error.
5220 bool CanAcceptCarrySet, CanAcceptPredicationCode;
5221 getMnemonicAcceptInfo(Mnemonic, Name, CanAcceptCarrySet, CanAcceptPredicationCode);
5223 // If we had a carry-set on an instruction that can't do that, issue an
5225 if (!CanAcceptCarrySet && CarrySetting) {
5226 Parser.eatToEndOfStatement();
5227 return Error(NameLoc, "instruction '" + Mnemonic +
5228 "' can not set flags, but 's' suffix specified");
5230 // If we had a predication code on an instruction that can't do that, issue an
5232 if (!CanAcceptPredicationCode && PredicationCode != ARMCC::AL) {
5233 Parser.eatToEndOfStatement();
5234 return Error(NameLoc, "instruction '" + Mnemonic +
5235 "' is not predicable, but condition code specified");
5238 // Add the carry setting operand, if necessary.
5239 if (CanAcceptCarrySet) {
5240 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size());
5241 Operands.push_back(ARMOperand::CreateCCOut(CarrySetting ? ARM::CPSR : 0,
5245 // Add the predication code operand, if necessary.
5246 if (CanAcceptPredicationCode) {
5247 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size() +
5249 Operands.push_back(ARMOperand::CreateCondCode(
5250 ARMCC::CondCodes(PredicationCode), Loc));
5253 // Add the processor imod operand, if necessary.
5254 if (ProcessorIMod) {
5255 Operands.push_back(ARMOperand::CreateImm(
5256 MCConstantExpr::Create(ProcessorIMod, getContext()),
5260 // Add the remaining tokens in the mnemonic.
5261 while (Next != StringRef::npos) {
5263 Next = Name.find('.', Start + 1);
5264 StringRef ExtraToken = Name.slice(Start, Next);
5266 // Some NEON instructions have an optional datatype suffix that is
5267 // completely ignored. Check for that.
5268 if (isDataTypeToken(ExtraToken) &&
5269 doesIgnoreDataTypeSuffix(Mnemonic, ExtraToken))
5272 // For for ARM mode generate an error if the .n qualifier is used.
5273 if (ExtraToken == ".n" && !isThumb()) {
5274 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5275 Parser.eatToEndOfStatement();
5276 return Error(Loc, "instruction with .n (narrow) qualifier not allowed in "
5280 // The .n qualifier is always discarded as that is what the tables
5281 // and matcher expect. In ARM mode the .w qualifier has no effect,
5282 // so discard it to avoid errors that can be caused by the matcher.
5283 if (ExtraToken != ".n" && (isThumb() || ExtraToken != ".w")) {
5284 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5285 Operands.push_back(ARMOperand::CreateToken(ExtraToken, Loc));
5289 // Read the remaining operands.
5290 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5291 // Read the first operand.
5292 if (parseOperand(Operands, Mnemonic)) {
5293 Parser.eatToEndOfStatement();
5297 while (getLexer().is(AsmToken::Comma)) {
5298 Parser.Lex(); // Eat the comma.
5300 // Parse and remember the operand.
5301 if (parseOperand(Operands, Mnemonic)) {
5302 Parser.eatToEndOfStatement();
5308 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5309 SMLoc Loc = getLexer().getLoc();
5310 Parser.eatToEndOfStatement();
5311 return Error(Loc, "unexpected token in argument list");
5314 Parser.Lex(); // Consume the EndOfStatement
5316 if (RequireVFPRegisterListCheck) {
5317 ARMOperand *Op = static_cast<ARMOperand*>(Operands.back());
5318 if (AcceptSinglePrecisionOnly && !Op->isSPRRegList())
5319 return Error(Op->getStartLoc(),
5320 "VFP/Neon single precision register expected");
5321 if (AcceptDoublePrecisionOnly && !Op->isDPRRegList())
5322 return Error(Op->getStartLoc(),
5323 "VFP/Neon double precision register expected");
5326 // Some instructions, mostly Thumb, have forms for the same mnemonic that
5327 // do and don't have a cc_out optional-def operand. With some spot-checks
5328 // of the operand list, we can figure out which variant we're trying to
5329 // parse and adjust accordingly before actually matching. We shouldn't ever
5330 // try to remove a cc_out operand that was explicitly set on the the
5331 // mnemonic, of course (CarrySetting == true). Reason number #317 the
5332 // table driven matcher doesn't fit well with the ARM instruction set.
5333 if (!CarrySetting && shouldOmitCCOutOperand(Mnemonic, Operands)) {
5334 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5335 Operands.erase(Operands.begin() + 1);
5339 // Some instructions have the same mnemonic, but don't always
5340 // have a predicate. Distinguish them here and delete the
5341 // predicate if needed.
5342 if (shouldOmitPredicateOperand(Mnemonic, Operands)) {
5343 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5344 Operands.erase(Operands.begin() + 1);
5348 // ARM mode 'blx' need special handling, as the register operand version
5349 // is predicable, but the label operand version is not. So, we can't rely
5350 // on the Mnemonic based checking to correctly figure out when to put
5351 // a k_CondCode operand in the list. If we're trying to match the label
5352 // version, remove the k_CondCode operand here.
5353 if (!isThumb() && Mnemonic == "blx" && Operands.size() == 3 &&
5354 static_cast<ARMOperand*>(Operands[2])->isImm()) {
5355 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5356 Operands.erase(Operands.begin() + 1);
5360 // Adjust operands of ldrexd/strexd to MCK_GPRPair.
5361 // ldrexd/strexd require even/odd GPR pair. To enforce this constraint,
5362 // a single GPRPair reg operand is used in the .td file to replace the two
5363 // GPRs. However, when parsing from asm, the two GRPs cannot be automatically
5364 // expressed as a GPRPair, so we have to manually merge them.
5365 // FIXME: We would really like to be able to tablegen'erate this.
5366 if (!isThumb() && Operands.size() > 4 &&
5367 (Mnemonic == "ldrexd" || Mnemonic == "strexd" || Mnemonic == "ldaexd" ||
5368 Mnemonic == "stlexd")) {
5369 bool isLoad = (Mnemonic == "ldrexd" || Mnemonic == "ldaexd");
5370 unsigned Idx = isLoad ? 2 : 3;
5371 ARMOperand* Op1 = static_cast<ARMOperand*>(Operands[Idx]);
5372 ARMOperand* Op2 = static_cast<ARMOperand*>(Operands[Idx+1]);
5374 const MCRegisterClass& MRC = MRI->getRegClass(ARM::GPRRegClassID);
5375 // Adjust only if Op1 and Op2 are GPRs.
5376 if (Op1->isReg() && Op2->isReg() && MRC.contains(Op1->getReg()) &&
5377 MRC.contains(Op2->getReg())) {
5378 unsigned Reg1 = Op1->getReg();
5379 unsigned Reg2 = Op2->getReg();
5380 unsigned Rt = MRI->getEncodingValue(Reg1);
5381 unsigned Rt2 = MRI->getEncodingValue(Reg2);
5383 // Rt2 must be Rt + 1 and Rt must be even.
5384 if (Rt + 1 != Rt2 || (Rt & 1)) {
5385 Error(Op2->getStartLoc(), isLoad ?
5386 "destination operands must be sequential" :
5387 "source operands must be sequential");
5390 unsigned NewReg = MRI->getMatchingSuperReg(Reg1, ARM::gsub_0,
5391 &(MRI->getRegClass(ARM::GPRPairRegClassID)));
5392 Operands.erase(Operands.begin() + Idx, Operands.begin() + Idx + 2);
5393 Operands.insert(Operands.begin() + Idx, ARMOperand::CreateReg(
5394 NewReg, Op1->getStartLoc(), Op2->getEndLoc()));
5400 // GNU Assembler extension (compatibility)
5401 if ((Mnemonic == "ldrd" || Mnemonic == "strd") && !isThumb() &&
5402 Operands.size() == 4) {
5403 ARMOperand *Op = static_cast<ARMOperand *>(Operands[2]);
5404 assert(Op->isReg() && "expected register argument");
5405 assert(MRI->getMatchingSuperReg(Op->getReg(), ARM::gsub_0,
5406 &MRI->getRegClass(ARM::GPRPairRegClassID))
5407 && "expected register pair");
5408 Operands.insert(Operands.begin() + 3,
5409 ARMOperand::CreateReg(Op->getReg() + 1, Op->getStartLoc(),
5413 // FIXME: As said above, this is all a pretty gross hack. This instruction
5414 // does not fit with other "subs" and tblgen.
5415 // Adjust operands of B9.3.19 SUBS PC, LR, #imm (Thumb2) system instruction
5416 // so the Mnemonic is the original name "subs" and delete the predicate
5417 // operand so it will match the table entry.
5418 if (isThumbTwo() && Mnemonic == "sub" && Operands.size() == 6 &&
5419 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5420 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::PC &&
5421 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5422 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::LR &&
5423 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5424 ARMOperand *Op0 = static_cast<ARMOperand*>(Operands[0]);
5425 Operands.erase(Operands.begin());
5427 Operands.insert(Operands.begin(), ARMOperand::CreateToken(Name, NameLoc));
5429 ARMOperand *Op1 = static_cast<ARMOperand*>(Operands[1]);
5430 Operands.erase(Operands.begin() + 1);
5436 // Validate context-sensitive operand constraints.
5438 // return 'true' if register list contains non-low GPR registers,
5439 // 'false' otherwise. If Reg is in the register list or is HiReg, set
5440 // 'containsReg' to true.
5441 static bool checkLowRegisterList(MCInst Inst, unsigned OpNo, unsigned Reg,
5442 unsigned HiReg, bool &containsReg) {
5443 containsReg = false;
5444 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5445 unsigned OpReg = Inst.getOperand(i).getReg();
5448 // Anything other than a low register isn't legal here.
5449 if (!isARMLowRegister(OpReg) && (!HiReg || OpReg != HiReg))
5455 // Check if the specified regisgter is in the register list of the inst,
5456 // starting at the indicated operand number.
5457 static bool listContainsReg(MCInst &Inst, unsigned OpNo, unsigned Reg) {
5458 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5459 unsigned OpReg = Inst.getOperand(i).getReg();
5466 // Return true if instruction has the interesting property of being
5467 // allowed in IT blocks, but not being predicable.
5468 static bool instIsBreakpoint(const MCInst &Inst) {
5469 return Inst.getOpcode() == ARM::tBKPT ||
5470 Inst.getOpcode() == ARM::BKPT ||
5471 Inst.getOpcode() == ARM::tHLT ||
5472 Inst.getOpcode() == ARM::HLT;
5476 // FIXME: We would really like to be able to tablegen'erate this.
5478 validateInstruction(MCInst &Inst,
5479 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5480 const MCInstrDesc &MCID = MII.get(Inst.getOpcode());
5481 SMLoc Loc = Operands[0]->getStartLoc();
5483 // Check the IT block state first.
5484 // NOTE: BKPT and HLT instructions have the interesting property of being
5485 // allowed in IT blocks, but not being predicable. They just always execute.
5486 if (inITBlock() && !instIsBreakpoint(Inst)) {
5488 if (ITState.FirstCond)
5489 ITState.FirstCond = false;
5491 Bit = (ITState.Mask >> (5 - ITState.CurPosition)) & 1;
5492 // The instruction must be predicable.
5493 if (!MCID.isPredicable())
5494 return Error(Loc, "instructions in IT block must be predicable");
5495 unsigned Cond = Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm();
5496 unsigned ITCond = Bit ? ITState.Cond :
5497 ARMCC::getOppositeCondition(ITState.Cond);
5498 if (Cond != ITCond) {
5499 // Find the condition code Operand to get its SMLoc information.
5501 for (unsigned I = 1; I < Operands.size(); ++I)
5502 if (static_cast<ARMOperand*>(Operands[I])->isCondCode())
5503 CondLoc = Operands[I]->getStartLoc();
5504 return Error(CondLoc, "incorrect condition in IT block; got '" +
5505 StringRef(ARMCondCodeToString(ARMCC::CondCodes(Cond))) +
5506 "', but expected '" +
5507 ARMCondCodeToString(ARMCC::CondCodes(ITCond)) + "'");
5509 // Check for non-'al' condition codes outside of the IT block.
5510 } else if (isThumbTwo() && MCID.isPredicable() &&
5511 Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm() !=
5512 ARMCC::AL && Inst.getOpcode() != ARM::tBcc &&
5513 Inst.getOpcode() != ARM::t2Bcc)
5514 return Error(Loc, "predicated instructions must be in IT block");
5516 const unsigned Opcode = Inst.getOpcode();
5520 case ARM::LDRD_POST: {
5521 const unsigned RtReg = Inst.getOperand(0).getReg();
5524 if (RtReg == ARM::LR)
5525 return Error(Operands[3]->getStartLoc(),
5528 const unsigned Rt = MRI->getEncodingValue(RtReg);
5529 // Rt must be even-numbered.
5531 return Error(Operands[3]->getStartLoc(),
5532 "Rt must be even-numbered");
5534 // Rt2 must be Rt + 1.
5535 const unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5537 return Error(Operands[3]->getStartLoc(),
5538 "destination operands must be sequential");
5540 if (Opcode == ARM::LDRD_PRE || Opcode == ARM::LDRD_POST) {
5541 const unsigned Rn = MRI->getEncodingValue(Inst.getOperand(3).getReg());
5542 // For addressing modes with writeback, the base register needs to be
5543 // different from the destination registers.
5544 if (Rn == Rt || Rn == Rt2)
5545 return Error(Operands[3]->getStartLoc(),
5546 "base register needs to be different from destination "
5553 case ARM::t2LDRD_PRE:
5554 case ARM::t2LDRD_POST: {
5555 // Rt2 must be different from Rt.
5556 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(0).getReg());
5557 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5559 return Error(Operands[3]->getStartLoc(),
5560 "destination operands can't be identical");
5564 // Rt2 must be Rt + 1.
5565 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(0).getReg());
5566 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5568 return Error(Operands[3]->getStartLoc(),
5569 "source operands must be sequential");
5573 case ARM::STRD_POST: {
5574 // Rt2 must be Rt + 1.
5575 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5576 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(2).getReg());
5578 return Error(Operands[3]->getStartLoc(),
5579 "source operands must be sequential");
5584 // Width must be in range [1, 32-lsb].
5585 unsigned LSB = Inst.getOperand(2).getImm();
5586 unsigned Widthm1 = Inst.getOperand(3).getImm();
5587 if (Widthm1 >= 32 - LSB)
5588 return Error(Operands[5]->getStartLoc(),
5589 "bitfield width must be in range [1,32-lsb]");
5592 // Notionally handles ARM::tLDMIA_UPD too.
5594 // If we're parsing Thumb2, the .w variant is available and handles
5595 // most cases that are normally illegal for a Thumb1 LDM instruction.
5596 // We'll make the transformation in processInstruction() if necessary.
5598 // Thumb LDM instructions are writeback iff the base register is not
5599 // in the register list.
5600 unsigned Rn = Inst.getOperand(0).getReg();
5601 bool HasWritebackToken =
5602 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
5603 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
5604 bool ListContainsBase;
5605 if (checkLowRegisterList(Inst, 3, Rn, 0, ListContainsBase) && !isThumbTwo())
5606 return Error(Operands[3 + HasWritebackToken]->getStartLoc(),
5607 "registers must be in range r0-r7");
5608 // If we should have writeback, then there should be a '!' token.
5609 if (!ListContainsBase && !HasWritebackToken && !isThumbTwo())
5610 return Error(Operands[2]->getStartLoc(),
5611 "writeback operator '!' expected");
5612 // If we should not have writeback, there must not be a '!'. This is
5613 // true even for the 32-bit wide encodings.
5614 if (ListContainsBase && HasWritebackToken)
5615 return Error(Operands[3]->getStartLoc(),
5616 "writeback operator '!' not allowed when base register "
5617 "in register list");
5621 case ARM::LDMIA_UPD:
5622 case ARM::LDMDB_UPD:
5623 case ARM::LDMIB_UPD:
5624 case ARM::LDMDA_UPD:
5625 // ARM variants loading and updating the same register are only officially
5626 // UNPREDICTABLE on v7 upwards. Goodness knows what they did before.
5630 case ARM::t2LDMIA_UPD:
5631 case ARM::t2LDMDB_UPD:
5632 case ARM::t2STMIA_UPD:
5633 case ARM::t2STMDB_UPD: {
5634 if (listContainsReg(Inst, 3, Inst.getOperand(0).getReg()))
5635 return Error(Operands.back()->getStartLoc(),
5636 "writeback register not allowed in register list");
5639 case ARM::sysLDMIA_UPD:
5640 case ARM::sysLDMDA_UPD:
5641 case ARM::sysLDMDB_UPD:
5642 case ARM::sysLDMIB_UPD:
5643 if (!listContainsReg(Inst, 3, ARM::PC))
5644 return Error(Operands[4]->getStartLoc(),
5645 "writeback register only allowed on system LDM "
5646 "if PC in register-list");
5648 case ARM::sysSTMIA_UPD:
5649 case ARM::sysSTMDA_UPD:
5650 case ARM::sysSTMDB_UPD:
5651 case ARM::sysSTMIB_UPD:
5652 return Error(Operands[2]->getStartLoc(),
5653 "system STM cannot have writeback register");
5655 // The second source operand must be the same register as the destination
5658 // In this case, we must directly check the parsed operands because the
5659 // cvtThumbMultiply() function is written in such a way that it guarantees
5660 // this first statement is always true for the new Inst. Essentially, the
5661 // destination is unconditionally copied into the second source operand
5662 // without checking to see if it matches what we actually parsed.
5663 if (Operands.size() == 6 &&
5664 (((ARMOperand*)Operands[3])->getReg() !=
5665 ((ARMOperand*)Operands[5])->getReg()) &&
5666 (((ARMOperand*)Operands[3])->getReg() !=
5667 ((ARMOperand*)Operands[4])->getReg())) {
5668 return Error(Operands[3]->getStartLoc(),
5669 "destination register must match source register");
5673 // Like for ldm/stm, push and pop have hi-reg handling version in Thumb2,
5674 // so only issue a diagnostic for thumb1. The instructions will be
5675 // switched to the t2 encodings in processInstruction() if necessary.
5677 bool ListContainsBase;
5678 if (checkLowRegisterList(Inst, 2, 0, ARM::PC, ListContainsBase) &&
5680 return Error(Operands[2]->getStartLoc(),
5681 "registers must be in range r0-r7 or pc");
5685 bool ListContainsBase;
5686 if (checkLowRegisterList(Inst, 2, 0, ARM::LR, ListContainsBase) &&
5688 return Error(Operands[2]->getStartLoc(),
5689 "registers must be in range r0-r7 or lr");
5692 case ARM::tSTMIA_UPD: {
5693 bool ListContainsBase, InvalidLowList;
5694 InvalidLowList = checkLowRegisterList(Inst, 4, Inst.getOperand(0).getReg(),
5695 0, ListContainsBase);
5696 if (InvalidLowList && !isThumbTwo())
5697 return Error(Operands[4]->getStartLoc(),
5698 "registers must be in range r0-r7");
5700 // This would be converted to a 32-bit stm, but that's not valid if the
5701 // writeback register is in the list.
5702 if (InvalidLowList && ListContainsBase)
5703 return Error(Operands[4]->getStartLoc(),
5704 "writeback operator '!' not allowed when base register "
5705 "in register list");
5708 case ARM::tADDrSP: {
5709 // If the non-SP source operand and the destination operand are not the
5710 // same, we need thumb2 (for the wide encoding), or we have an error.
5711 if (!isThumbTwo() &&
5712 Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
5713 return Error(Operands[4]->getStartLoc(),
5714 "source register must be the same as destination");
5718 // Final range checking for Thumb unconditional branch instructions.
5720 if (!(static_cast<ARMOperand*>(Operands[2]))->isSignedOffset<11, 1>())
5721 return Error(Operands[2]->getStartLoc(), "branch target out of range");
5724 int op = (Operands[2]->isImm()) ? 2 : 3;
5725 if (!(static_cast<ARMOperand*>(Operands[op]))->isSignedOffset<24, 1>())
5726 return Error(Operands[op]->getStartLoc(), "branch target out of range");
5729 // Final range checking for Thumb conditional branch instructions.
5731 if (!(static_cast<ARMOperand*>(Operands[2]))->isSignedOffset<8, 1>())
5732 return Error(Operands[2]->getStartLoc(), "branch target out of range");
5735 int Op = (Operands[2]->isImm()) ? 2 : 3;
5736 if (!(static_cast<ARMOperand*>(Operands[Op]))->isSignedOffset<20, 1>())
5737 return Error(Operands[Op]->getStartLoc(), "branch target out of range");
5745 static unsigned getRealVSTOpcode(unsigned Opc, unsigned &Spacing) {
5747 default: llvm_unreachable("unexpected opcode!");
5749 case ARM::VST1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5750 case ARM::VST1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5751 case ARM::VST1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5752 case ARM::VST1LNdWB_register_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5753 case ARM::VST1LNdWB_register_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5754 case ARM::VST1LNdWB_register_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5755 case ARM::VST1LNdAsm_8: Spacing = 1; return ARM::VST1LNd8;
5756 case ARM::VST1LNdAsm_16: Spacing = 1; return ARM::VST1LNd16;
5757 case ARM::VST1LNdAsm_32: Spacing = 1; return ARM::VST1LNd32;
5760 case ARM::VST2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5761 case ARM::VST2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5762 case ARM::VST2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5763 case ARM::VST2LNqWB_fixed_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5764 case ARM::VST2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5766 case ARM::VST2LNdWB_register_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5767 case ARM::VST2LNdWB_register_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5768 case ARM::VST2LNdWB_register_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5769 case ARM::VST2LNqWB_register_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5770 case ARM::VST2LNqWB_register_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5772 case ARM::VST2LNdAsm_8: Spacing = 1; return ARM::VST2LNd8;
5773 case ARM::VST2LNdAsm_16: Spacing = 1; return ARM::VST2LNd16;
5774 case ARM::VST2LNdAsm_32: Spacing = 1; return ARM::VST2LNd32;
5775 case ARM::VST2LNqAsm_16: Spacing = 2; return ARM::VST2LNq16;
5776 case ARM::VST2LNqAsm_32: Spacing = 2; return ARM::VST2LNq32;
5779 case ARM::VST3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5780 case ARM::VST3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5781 case ARM::VST3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5782 case ARM::VST3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNq16_UPD;
5783 case ARM::VST3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5784 case ARM::VST3LNdWB_register_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5785 case ARM::VST3LNdWB_register_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5786 case ARM::VST3LNdWB_register_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5787 case ARM::VST3LNqWB_register_Asm_16: Spacing = 2; return ARM::VST3LNq16_UPD;
5788 case ARM::VST3LNqWB_register_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5789 case ARM::VST3LNdAsm_8: Spacing = 1; return ARM::VST3LNd8;
5790 case ARM::VST3LNdAsm_16: Spacing = 1; return ARM::VST3LNd16;
5791 case ARM::VST3LNdAsm_32: Spacing = 1; return ARM::VST3LNd32;
5792 case ARM::VST3LNqAsm_16: Spacing = 2; return ARM::VST3LNq16;
5793 case ARM::VST3LNqAsm_32: Spacing = 2; return ARM::VST3LNq32;
5796 case ARM::VST3dWB_fixed_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5797 case ARM::VST3dWB_fixed_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5798 case ARM::VST3dWB_fixed_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5799 case ARM::VST3qWB_fixed_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5800 case ARM::VST3qWB_fixed_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5801 case ARM::VST3qWB_fixed_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5802 case ARM::VST3dWB_register_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5803 case ARM::VST3dWB_register_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5804 case ARM::VST3dWB_register_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5805 case ARM::VST3qWB_register_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5806 case ARM::VST3qWB_register_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5807 case ARM::VST3qWB_register_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5808 case ARM::VST3dAsm_8: Spacing = 1; return ARM::VST3d8;
5809 case ARM::VST3dAsm_16: Spacing = 1; return ARM::VST3d16;
5810 case ARM::VST3dAsm_32: Spacing = 1; return ARM::VST3d32;
5811 case ARM::VST3qAsm_8: Spacing = 2; return ARM::VST3q8;
5812 case ARM::VST3qAsm_16: Spacing = 2; return ARM::VST3q16;
5813 case ARM::VST3qAsm_32: Spacing = 2; return ARM::VST3q32;
5816 case ARM::VST4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5817 case ARM::VST4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5818 case ARM::VST4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5819 case ARM::VST4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNq16_UPD;
5820 case ARM::VST4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5821 case ARM::VST4LNdWB_register_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5822 case ARM::VST4LNdWB_register_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5823 case ARM::VST4LNdWB_register_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5824 case ARM::VST4LNqWB_register_Asm_16: Spacing = 2; return ARM::VST4LNq16_UPD;
5825 case ARM::VST4LNqWB_register_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5826 case ARM::VST4LNdAsm_8: Spacing = 1; return ARM::VST4LNd8;
5827 case ARM::VST4LNdAsm_16: Spacing = 1; return ARM::VST4LNd16;
5828 case ARM::VST4LNdAsm_32: Spacing = 1; return ARM::VST4LNd32;
5829 case ARM::VST4LNqAsm_16: Spacing = 2; return ARM::VST4LNq16;
5830 case ARM::VST4LNqAsm_32: Spacing = 2; return ARM::VST4LNq32;
5833 case ARM::VST4dWB_fixed_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5834 case ARM::VST4dWB_fixed_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5835 case ARM::VST4dWB_fixed_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5836 case ARM::VST4qWB_fixed_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5837 case ARM::VST4qWB_fixed_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5838 case ARM::VST4qWB_fixed_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5839 case ARM::VST4dWB_register_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5840 case ARM::VST4dWB_register_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5841 case ARM::VST4dWB_register_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5842 case ARM::VST4qWB_register_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5843 case ARM::VST4qWB_register_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5844 case ARM::VST4qWB_register_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5845 case ARM::VST4dAsm_8: Spacing = 1; return ARM::VST4d8;
5846 case ARM::VST4dAsm_16: Spacing = 1; return ARM::VST4d16;
5847 case ARM::VST4dAsm_32: Spacing = 1; return ARM::VST4d32;
5848 case ARM::VST4qAsm_8: Spacing = 2; return ARM::VST4q8;
5849 case ARM::VST4qAsm_16: Spacing = 2; return ARM::VST4q16;
5850 case ARM::VST4qAsm_32: Spacing = 2; return ARM::VST4q32;
5854 static unsigned getRealVLDOpcode(unsigned Opc, unsigned &Spacing) {
5856 default: llvm_unreachable("unexpected opcode!");
5858 case ARM::VLD1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5859 case ARM::VLD1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5860 case ARM::VLD1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5861 case ARM::VLD1LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5862 case ARM::VLD1LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5863 case ARM::VLD1LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5864 case ARM::VLD1LNdAsm_8: Spacing = 1; return ARM::VLD1LNd8;
5865 case ARM::VLD1LNdAsm_16: Spacing = 1; return ARM::VLD1LNd16;
5866 case ARM::VLD1LNdAsm_32: Spacing = 1; return ARM::VLD1LNd32;
5869 case ARM::VLD2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5870 case ARM::VLD2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5871 case ARM::VLD2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5872 case ARM::VLD2LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNq16_UPD;
5873 case ARM::VLD2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5874 case ARM::VLD2LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5875 case ARM::VLD2LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5876 case ARM::VLD2LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5877 case ARM::VLD2LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD2LNq16_UPD;
5878 case ARM::VLD2LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5879 case ARM::VLD2LNdAsm_8: Spacing = 1; return ARM::VLD2LNd8;
5880 case ARM::VLD2LNdAsm_16: Spacing = 1; return ARM::VLD2LNd16;
5881 case ARM::VLD2LNdAsm_32: Spacing = 1; return ARM::VLD2LNd32;
5882 case ARM::VLD2LNqAsm_16: Spacing = 2; return ARM::VLD2LNq16;
5883 case ARM::VLD2LNqAsm_32: Spacing = 2; return ARM::VLD2LNq32;
5886 case ARM::VLD3DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5887 case ARM::VLD3DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5888 case ARM::VLD3DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5889 case ARM::VLD3DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPq8_UPD;
5890 case ARM::VLD3DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPq16_UPD;
5891 case ARM::VLD3DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5892 case ARM::VLD3DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5893 case ARM::VLD3DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5894 case ARM::VLD3DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5895 case ARM::VLD3DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD3DUPq8_UPD;
5896 case ARM::VLD3DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD3DUPq16_UPD;
5897 case ARM::VLD3DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5898 case ARM::VLD3DUPdAsm_8: Spacing = 1; return ARM::VLD3DUPd8;
5899 case ARM::VLD3DUPdAsm_16: Spacing = 1; return ARM::VLD3DUPd16;
5900 case ARM::VLD3DUPdAsm_32: Spacing = 1; return ARM::VLD3DUPd32;
5901 case ARM::VLD3DUPqAsm_8: Spacing = 2; return ARM::VLD3DUPq8;
5902 case ARM::VLD3DUPqAsm_16: Spacing = 2; return ARM::VLD3DUPq16;
5903 case ARM::VLD3DUPqAsm_32: Spacing = 2; return ARM::VLD3DUPq32;
5906 case ARM::VLD3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5907 case ARM::VLD3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5908 case ARM::VLD3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5909 case ARM::VLD3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNq16_UPD;
5910 case ARM::VLD3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5911 case ARM::VLD3LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5912 case ARM::VLD3LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5913 case ARM::VLD3LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5914 case ARM::VLD3LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD3LNq16_UPD;
5915 case ARM::VLD3LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5916 case ARM::VLD3LNdAsm_8: Spacing = 1; return ARM::VLD3LNd8;
5917 case ARM::VLD3LNdAsm_16: Spacing = 1; return ARM::VLD3LNd16;
5918 case ARM::VLD3LNdAsm_32: Spacing = 1; return ARM::VLD3LNd32;
5919 case ARM::VLD3LNqAsm_16: Spacing = 2; return ARM::VLD3LNq16;
5920 case ARM::VLD3LNqAsm_32: Spacing = 2; return ARM::VLD3LNq32;
5923 case ARM::VLD3dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5924 case ARM::VLD3dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5925 case ARM::VLD3dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5926 case ARM::VLD3qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5927 case ARM::VLD3qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5928 case ARM::VLD3qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5929 case ARM::VLD3dWB_register_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5930 case ARM::VLD3dWB_register_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5931 case ARM::VLD3dWB_register_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5932 case ARM::VLD3qWB_register_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5933 case ARM::VLD3qWB_register_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5934 case ARM::VLD3qWB_register_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5935 case ARM::VLD3dAsm_8: Spacing = 1; return ARM::VLD3d8;
5936 case ARM::VLD3dAsm_16: Spacing = 1; return ARM::VLD3d16;
5937 case ARM::VLD3dAsm_32: Spacing = 1; return ARM::VLD3d32;
5938 case ARM::VLD3qAsm_8: Spacing = 2; return ARM::VLD3q8;
5939 case ARM::VLD3qAsm_16: Spacing = 2; return ARM::VLD3q16;
5940 case ARM::VLD3qAsm_32: Spacing = 2; return ARM::VLD3q32;
5943 case ARM::VLD4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5944 case ARM::VLD4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5945 case ARM::VLD4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5946 case ARM::VLD4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNq16_UPD;
5947 case ARM::VLD4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5948 case ARM::VLD4LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5949 case ARM::VLD4LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5950 case ARM::VLD4LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5951 case ARM::VLD4LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD4LNq16_UPD;
5952 case ARM::VLD4LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5953 case ARM::VLD4LNdAsm_8: Spacing = 1; return ARM::VLD4LNd8;
5954 case ARM::VLD4LNdAsm_16: Spacing = 1; return ARM::VLD4LNd16;
5955 case ARM::VLD4LNdAsm_32: Spacing = 1; return ARM::VLD4LNd32;
5956 case ARM::VLD4LNqAsm_16: Spacing = 2; return ARM::VLD4LNq16;
5957 case ARM::VLD4LNqAsm_32: Spacing = 2; return ARM::VLD4LNq32;
5960 case ARM::VLD4DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5961 case ARM::VLD4DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5962 case ARM::VLD4DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5963 case ARM::VLD4DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPq8_UPD;
5964 case ARM::VLD4DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPq16_UPD;
5965 case ARM::VLD4DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5966 case ARM::VLD4DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5967 case ARM::VLD4DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5968 case ARM::VLD4DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5969 case ARM::VLD4DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD4DUPq8_UPD;
5970 case ARM::VLD4DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD4DUPq16_UPD;
5971 case ARM::VLD4DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5972 case ARM::VLD4DUPdAsm_8: Spacing = 1; return ARM::VLD4DUPd8;
5973 case ARM::VLD4DUPdAsm_16: Spacing = 1; return ARM::VLD4DUPd16;
5974 case ARM::VLD4DUPdAsm_32: Spacing = 1; return ARM::VLD4DUPd32;
5975 case ARM::VLD4DUPqAsm_8: Spacing = 2; return ARM::VLD4DUPq8;
5976 case ARM::VLD4DUPqAsm_16: Spacing = 2; return ARM::VLD4DUPq16;
5977 case ARM::VLD4DUPqAsm_32: Spacing = 2; return ARM::VLD4DUPq32;
5980 case ARM::VLD4dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5981 case ARM::VLD4dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5982 case ARM::VLD4dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5983 case ARM::VLD4qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5984 case ARM::VLD4qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5985 case ARM::VLD4qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5986 case ARM::VLD4dWB_register_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5987 case ARM::VLD4dWB_register_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5988 case ARM::VLD4dWB_register_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5989 case ARM::VLD4qWB_register_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5990 case ARM::VLD4qWB_register_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5991 case ARM::VLD4qWB_register_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5992 case ARM::VLD4dAsm_8: Spacing = 1; return ARM::VLD4d8;
5993 case ARM::VLD4dAsm_16: Spacing = 1; return ARM::VLD4d16;
5994 case ARM::VLD4dAsm_32: Spacing = 1; return ARM::VLD4d32;
5995 case ARM::VLD4qAsm_8: Spacing = 2; return ARM::VLD4q8;
5996 case ARM::VLD4qAsm_16: Spacing = 2; return ARM::VLD4q16;
5997 case ARM::VLD4qAsm_32: Spacing = 2; return ARM::VLD4q32;
6002 processInstruction(MCInst &Inst,
6003 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
6004 switch (Inst.getOpcode()) {
6005 // Alias for alternate form of 'ldr{,b}t Rt, [Rn], #imm' instruction.
6006 case ARM::LDRT_POST:
6007 case ARM::LDRBT_POST: {
6008 const unsigned Opcode =
6009 (Inst.getOpcode() == ARM::LDRT_POST) ? ARM::LDRT_POST_IMM
6010 : ARM::LDRBT_POST_IMM;
6012 TmpInst.setOpcode(Opcode);
6013 TmpInst.addOperand(Inst.getOperand(0));
6014 TmpInst.addOperand(Inst.getOperand(1));
6015 TmpInst.addOperand(Inst.getOperand(1));
6016 TmpInst.addOperand(MCOperand::CreateReg(0));
6017 TmpInst.addOperand(MCOperand::CreateImm(0));
6018 TmpInst.addOperand(Inst.getOperand(2));
6019 TmpInst.addOperand(Inst.getOperand(3));
6023 // Alias for alternate form of 'str{,b}t Rt, [Rn], #imm' instruction.
6024 case ARM::STRT_POST:
6025 case ARM::STRBT_POST: {
6026 const unsigned Opcode =
6027 (Inst.getOpcode() == ARM::STRT_POST) ? ARM::STRT_POST_IMM
6028 : ARM::STRBT_POST_IMM;
6030 TmpInst.setOpcode(Opcode);
6031 TmpInst.addOperand(Inst.getOperand(1));
6032 TmpInst.addOperand(Inst.getOperand(0));
6033 TmpInst.addOperand(Inst.getOperand(1));
6034 TmpInst.addOperand(MCOperand::CreateReg(0));
6035 TmpInst.addOperand(MCOperand::CreateImm(0));
6036 TmpInst.addOperand(Inst.getOperand(2));
6037 TmpInst.addOperand(Inst.getOperand(3));
6041 // Alias for alternate form of 'ADR Rd, #imm' instruction.
6043 if (Inst.getOperand(1).getReg() != ARM::PC ||
6044 Inst.getOperand(5).getReg() != 0)
6047 TmpInst.setOpcode(ARM::ADR);
6048 TmpInst.addOperand(Inst.getOperand(0));
6049 TmpInst.addOperand(Inst.getOperand(2));
6050 TmpInst.addOperand(Inst.getOperand(3));
6051 TmpInst.addOperand(Inst.getOperand(4));
6055 // Aliases for alternate PC+imm syntax of LDR instructions.
6056 case ARM::t2LDRpcrel:
6057 // Select the narrow version if the immediate will fit.
6058 if (Inst.getOperand(1).getImm() > 0 &&
6059 Inst.getOperand(1).getImm() <= 0xff &&
6060 !(static_cast<ARMOperand*>(Operands[2])->isToken() &&
6061 static_cast<ARMOperand*>(Operands[2])->getToken() == ".w"))
6062 Inst.setOpcode(ARM::tLDRpci);
6064 Inst.setOpcode(ARM::t2LDRpci);
6066 case ARM::t2LDRBpcrel:
6067 Inst.setOpcode(ARM::t2LDRBpci);
6069 case ARM::t2LDRHpcrel:
6070 Inst.setOpcode(ARM::t2LDRHpci);
6072 case ARM::t2LDRSBpcrel:
6073 Inst.setOpcode(ARM::t2LDRSBpci);
6075 case ARM::t2LDRSHpcrel:
6076 Inst.setOpcode(ARM::t2LDRSHpci);
6078 // Handle NEON VST complex aliases.
6079 case ARM::VST1LNdWB_register_Asm_8:
6080 case ARM::VST1LNdWB_register_Asm_16:
6081 case ARM::VST1LNdWB_register_Asm_32: {
6083 // Shuffle the operands around so the lane index operand is in the
6086 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6087 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6088 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6089 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6090 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6091 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6092 TmpInst.addOperand(Inst.getOperand(1)); // lane
6093 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6094 TmpInst.addOperand(Inst.getOperand(6));
6099 case ARM::VST2LNdWB_register_Asm_8:
6100 case ARM::VST2LNdWB_register_Asm_16:
6101 case ARM::VST2LNdWB_register_Asm_32:
6102 case ARM::VST2LNqWB_register_Asm_16:
6103 case ARM::VST2LNqWB_register_Asm_32: {
6105 // Shuffle the operands around so the lane index operand is in the
6108 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6109 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6110 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6111 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6112 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6113 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6114 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6116 TmpInst.addOperand(Inst.getOperand(1)); // lane
6117 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6118 TmpInst.addOperand(Inst.getOperand(6));
6123 case ARM::VST3LNdWB_register_Asm_8:
6124 case ARM::VST3LNdWB_register_Asm_16:
6125 case ARM::VST3LNdWB_register_Asm_32:
6126 case ARM::VST3LNqWB_register_Asm_16:
6127 case ARM::VST3LNqWB_register_Asm_32: {
6129 // Shuffle the operands around so the lane index operand is in the
6132 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6133 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6134 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6135 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6136 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6137 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6138 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6140 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6142 TmpInst.addOperand(Inst.getOperand(1)); // lane
6143 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6144 TmpInst.addOperand(Inst.getOperand(6));
6149 case ARM::VST4LNdWB_register_Asm_8:
6150 case ARM::VST4LNdWB_register_Asm_16:
6151 case ARM::VST4LNdWB_register_Asm_32:
6152 case ARM::VST4LNqWB_register_Asm_16:
6153 case ARM::VST4LNqWB_register_Asm_32: {
6155 // Shuffle the operands around so the lane index operand is in the
6158 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6159 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6160 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6161 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6162 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6163 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6164 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6166 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6168 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6170 TmpInst.addOperand(Inst.getOperand(1)); // lane
6171 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6172 TmpInst.addOperand(Inst.getOperand(6));
6177 case ARM::VST1LNdWB_fixed_Asm_8:
6178 case ARM::VST1LNdWB_fixed_Asm_16:
6179 case ARM::VST1LNdWB_fixed_Asm_32: {
6181 // Shuffle the operands around so the lane index operand is in the
6184 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6185 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6186 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6187 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6188 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6189 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6190 TmpInst.addOperand(Inst.getOperand(1)); // lane
6191 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6192 TmpInst.addOperand(Inst.getOperand(5));
6197 case ARM::VST2LNdWB_fixed_Asm_8:
6198 case ARM::VST2LNdWB_fixed_Asm_16:
6199 case ARM::VST2LNdWB_fixed_Asm_32:
6200 case ARM::VST2LNqWB_fixed_Asm_16:
6201 case ARM::VST2LNqWB_fixed_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(MCOperand::CreateReg(0)); // Rm
6211 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6212 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6214 TmpInst.addOperand(Inst.getOperand(1)); // lane
6215 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6216 TmpInst.addOperand(Inst.getOperand(5));
6221 case ARM::VST3LNdWB_fixed_Asm_8:
6222 case ARM::VST3LNdWB_fixed_Asm_16:
6223 case ARM::VST3LNdWB_fixed_Asm_32:
6224 case ARM::VST3LNqWB_fixed_Asm_16:
6225 case ARM::VST3LNqWB_fixed_Asm_32: {
6227 // Shuffle the operands around so the lane index operand is in the
6230 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6231 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6232 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6233 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6234 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6235 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6236 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6238 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6240 TmpInst.addOperand(Inst.getOperand(1)); // lane
6241 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6242 TmpInst.addOperand(Inst.getOperand(5));
6247 case ARM::VST4LNdWB_fixed_Asm_8:
6248 case ARM::VST4LNdWB_fixed_Asm_16:
6249 case ARM::VST4LNdWB_fixed_Asm_32:
6250 case ARM::VST4LNqWB_fixed_Asm_16:
6251 case ARM::VST4LNqWB_fixed_Asm_32: {
6253 // Shuffle the operands around so the lane index operand is in the
6256 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6257 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6258 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6259 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6260 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6261 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6262 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6264 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6266 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6268 TmpInst.addOperand(Inst.getOperand(1)); // lane
6269 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6270 TmpInst.addOperand(Inst.getOperand(5));
6275 case ARM::VST1LNdAsm_8:
6276 case ARM::VST1LNdAsm_16:
6277 case ARM::VST1LNdAsm_32: {
6279 // Shuffle the operands around so the lane index operand is in the
6282 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6283 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6284 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6285 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6286 TmpInst.addOperand(Inst.getOperand(1)); // lane
6287 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6288 TmpInst.addOperand(Inst.getOperand(5));
6293 case ARM::VST2LNdAsm_8:
6294 case ARM::VST2LNdAsm_16:
6295 case ARM::VST2LNdAsm_32:
6296 case ARM::VST2LNqAsm_16:
6297 case ARM::VST2LNqAsm_32: {
6299 // Shuffle the operands around so the lane index operand is in the
6302 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6303 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6304 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6305 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6306 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6308 TmpInst.addOperand(Inst.getOperand(1)); // lane
6309 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6310 TmpInst.addOperand(Inst.getOperand(5));
6315 case ARM::VST3LNdAsm_8:
6316 case ARM::VST3LNdAsm_16:
6317 case ARM::VST3LNdAsm_32:
6318 case ARM::VST3LNqAsm_16:
6319 case ARM::VST3LNqAsm_32: {
6321 // Shuffle the operands around so the lane index operand is in the
6324 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6325 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6326 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6327 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6328 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6330 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6332 TmpInst.addOperand(Inst.getOperand(1)); // lane
6333 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6334 TmpInst.addOperand(Inst.getOperand(5));
6339 case ARM::VST4LNdAsm_8:
6340 case ARM::VST4LNdAsm_16:
6341 case ARM::VST4LNdAsm_32:
6342 case ARM::VST4LNqAsm_16:
6343 case ARM::VST4LNqAsm_32: {
6345 // Shuffle the operands around so the lane index operand is in the
6348 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6349 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6350 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6351 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6352 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6354 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6356 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6358 TmpInst.addOperand(Inst.getOperand(1)); // lane
6359 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6360 TmpInst.addOperand(Inst.getOperand(5));
6365 // Handle NEON VLD complex aliases.
6366 case ARM::VLD1LNdWB_register_Asm_8:
6367 case ARM::VLD1LNdWB_register_Asm_16:
6368 case ARM::VLD1LNdWB_register_Asm_32: {
6370 // Shuffle the operands around so the lane index operand is in the
6373 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6374 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6375 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6376 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6377 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6378 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6379 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6380 TmpInst.addOperand(Inst.getOperand(1)); // lane
6381 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6382 TmpInst.addOperand(Inst.getOperand(6));
6387 case ARM::VLD2LNdWB_register_Asm_8:
6388 case ARM::VLD2LNdWB_register_Asm_16:
6389 case ARM::VLD2LNdWB_register_Asm_32:
6390 case ARM::VLD2LNqWB_register_Asm_16:
6391 case ARM::VLD2LNqWB_register_Asm_32: {
6393 // Shuffle the operands around so the lane index operand is in the
6396 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6397 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6398 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6400 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6401 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6402 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6403 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6404 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6405 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6407 TmpInst.addOperand(Inst.getOperand(1)); // lane
6408 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6409 TmpInst.addOperand(Inst.getOperand(6));
6414 case ARM::VLD3LNdWB_register_Asm_8:
6415 case ARM::VLD3LNdWB_register_Asm_16:
6416 case ARM::VLD3LNdWB_register_Asm_32:
6417 case ARM::VLD3LNqWB_register_Asm_16:
6418 case ARM::VLD3LNqWB_register_Asm_32: {
6420 // Shuffle the operands around so the lane index operand is in the
6423 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6424 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6425 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6427 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6429 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6430 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6431 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6432 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6433 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6434 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6436 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6438 TmpInst.addOperand(Inst.getOperand(1)); // lane
6439 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6440 TmpInst.addOperand(Inst.getOperand(6));
6445 case ARM::VLD4LNdWB_register_Asm_8:
6446 case ARM::VLD4LNdWB_register_Asm_16:
6447 case ARM::VLD4LNdWB_register_Asm_32:
6448 case ARM::VLD4LNqWB_register_Asm_16:
6449 case ARM::VLD4LNqWB_register_Asm_32: {
6451 // Shuffle the operands around so the lane index operand is in the
6454 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6455 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6456 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6458 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6460 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6462 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6463 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6464 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6465 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6466 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6467 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6469 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6471 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6473 TmpInst.addOperand(Inst.getOperand(1)); // lane
6474 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6475 TmpInst.addOperand(Inst.getOperand(6));
6480 case ARM::VLD1LNdWB_fixed_Asm_8:
6481 case ARM::VLD1LNdWB_fixed_Asm_16:
6482 case ARM::VLD1LNdWB_fixed_Asm_32: {
6484 // Shuffle the operands around so the lane index operand is in the
6487 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6488 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6489 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6490 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6491 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6492 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6493 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6494 TmpInst.addOperand(Inst.getOperand(1)); // lane
6495 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6496 TmpInst.addOperand(Inst.getOperand(5));
6501 case ARM::VLD2LNdWB_fixed_Asm_8:
6502 case ARM::VLD2LNdWB_fixed_Asm_16:
6503 case ARM::VLD2LNdWB_fixed_Asm_32:
6504 case ARM::VLD2LNqWB_fixed_Asm_16:
6505 case ARM::VLD2LNqWB_fixed_Asm_32: {
6507 // Shuffle the operands around so the lane index operand is in the
6510 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6511 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6512 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6514 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6515 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6516 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6517 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6518 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6519 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6521 TmpInst.addOperand(Inst.getOperand(1)); // lane
6522 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6523 TmpInst.addOperand(Inst.getOperand(5));
6528 case ARM::VLD3LNdWB_fixed_Asm_8:
6529 case ARM::VLD3LNdWB_fixed_Asm_16:
6530 case ARM::VLD3LNdWB_fixed_Asm_32:
6531 case ARM::VLD3LNqWB_fixed_Asm_16:
6532 case ARM::VLD3LNqWB_fixed_Asm_32: {
6534 // Shuffle the operands around so the lane index operand is in the
6537 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6538 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6539 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6541 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6543 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6544 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6545 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6546 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6547 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6548 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6550 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6552 TmpInst.addOperand(Inst.getOperand(1)); // lane
6553 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6554 TmpInst.addOperand(Inst.getOperand(5));
6559 case ARM::VLD4LNdWB_fixed_Asm_8:
6560 case ARM::VLD4LNdWB_fixed_Asm_16:
6561 case ARM::VLD4LNdWB_fixed_Asm_32:
6562 case ARM::VLD4LNqWB_fixed_Asm_16:
6563 case ARM::VLD4LNqWB_fixed_Asm_32: {
6565 // Shuffle the operands around so the lane index operand is in the
6568 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6569 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6570 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6572 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6574 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6576 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6577 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6578 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6579 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6580 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6581 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6583 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6585 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6587 TmpInst.addOperand(Inst.getOperand(1)); // lane
6588 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6589 TmpInst.addOperand(Inst.getOperand(5));
6594 case ARM::VLD1LNdAsm_8:
6595 case ARM::VLD1LNdAsm_16:
6596 case ARM::VLD1LNdAsm_32: {
6598 // Shuffle the operands around so the lane index operand is in the
6601 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6602 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6603 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6604 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6605 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6606 TmpInst.addOperand(Inst.getOperand(1)); // lane
6607 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6608 TmpInst.addOperand(Inst.getOperand(5));
6613 case ARM::VLD2LNdAsm_8:
6614 case ARM::VLD2LNdAsm_16:
6615 case ARM::VLD2LNdAsm_32:
6616 case ARM::VLD2LNqAsm_16:
6617 case ARM::VLD2LNqAsm_32: {
6619 // Shuffle the operands around so the lane index operand is in the
6622 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6623 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6624 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6626 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6627 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6628 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6629 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6631 TmpInst.addOperand(Inst.getOperand(1)); // lane
6632 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6633 TmpInst.addOperand(Inst.getOperand(5));
6638 case ARM::VLD3LNdAsm_8:
6639 case ARM::VLD3LNdAsm_16:
6640 case ARM::VLD3LNdAsm_32:
6641 case ARM::VLD3LNqAsm_16:
6642 case ARM::VLD3LNqAsm_32: {
6644 // Shuffle the operands around so the lane index operand is in the
6647 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6648 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6649 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6651 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6653 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6654 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6655 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6656 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6658 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6660 TmpInst.addOperand(Inst.getOperand(1)); // lane
6661 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6662 TmpInst.addOperand(Inst.getOperand(5));
6667 case ARM::VLD4LNdAsm_8:
6668 case ARM::VLD4LNdAsm_16:
6669 case ARM::VLD4LNdAsm_32:
6670 case ARM::VLD4LNqAsm_16:
6671 case ARM::VLD4LNqAsm_32: {
6673 // Shuffle the operands around so the lane index operand is in the
6676 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6677 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6678 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6680 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6682 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6684 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6685 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6686 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6687 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6689 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6691 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6693 TmpInst.addOperand(Inst.getOperand(1)); // lane
6694 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6695 TmpInst.addOperand(Inst.getOperand(5));
6700 // VLD3DUP single 3-element structure to all lanes instructions.
6701 case ARM::VLD3DUPdAsm_8:
6702 case ARM::VLD3DUPdAsm_16:
6703 case ARM::VLD3DUPdAsm_32:
6704 case ARM::VLD3DUPqAsm_8:
6705 case ARM::VLD3DUPqAsm_16:
6706 case ARM::VLD3DUPqAsm_32: {
6709 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6710 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6711 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6713 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6715 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6716 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6717 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6718 TmpInst.addOperand(Inst.getOperand(4));
6723 case ARM::VLD3DUPdWB_fixed_Asm_8:
6724 case ARM::VLD3DUPdWB_fixed_Asm_16:
6725 case ARM::VLD3DUPdWB_fixed_Asm_32:
6726 case ARM::VLD3DUPqWB_fixed_Asm_8:
6727 case ARM::VLD3DUPqWB_fixed_Asm_16:
6728 case ARM::VLD3DUPqWB_fixed_Asm_32: {
6731 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6732 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6733 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6735 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6737 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6738 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6739 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6740 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6741 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6742 TmpInst.addOperand(Inst.getOperand(4));
6747 case ARM::VLD3DUPdWB_register_Asm_8:
6748 case ARM::VLD3DUPdWB_register_Asm_16:
6749 case ARM::VLD3DUPdWB_register_Asm_32:
6750 case ARM::VLD3DUPqWB_register_Asm_8:
6751 case ARM::VLD3DUPqWB_register_Asm_16:
6752 case ARM::VLD3DUPqWB_register_Asm_32: {
6755 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6756 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6757 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6759 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6761 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6762 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6763 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6764 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6765 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6766 TmpInst.addOperand(Inst.getOperand(5));
6771 // VLD3 multiple 3-element structure instructions.
6772 case ARM::VLD3dAsm_8:
6773 case ARM::VLD3dAsm_16:
6774 case ARM::VLD3dAsm_32:
6775 case ARM::VLD3qAsm_8:
6776 case ARM::VLD3qAsm_16:
6777 case ARM::VLD3qAsm_32: {
6780 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6781 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6782 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6784 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6786 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6787 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6788 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6789 TmpInst.addOperand(Inst.getOperand(4));
6794 case ARM::VLD3dWB_fixed_Asm_8:
6795 case ARM::VLD3dWB_fixed_Asm_16:
6796 case ARM::VLD3dWB_fixed_Asm_32:
6797 case ARM::VLD3qWB_fixed_Asm_8:
6798 case ARM::VLD3qWB_fixed_Asm_16:
6799 case ARM::VLD3qWB_fixed_Asm_32: {
6802 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6803 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6804 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6806 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6808 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6809 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6810 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6811 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6812 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6813 TmpInst.addOperand(Inst.getOperand(4));
6818 case ARM::VLD3dWB_register_Asm_8:
6819 case ARM::VLD3dWB_register_Asm_16:
6820 case ARM::VLD3dWB_register_Asm_32:
6821 case ARM::VLD3qWB_register_Asm_8:
6822 case ARM::VLD3qWB_register_Asm_16:
6823 case ARM::VLD3qWB_register_Asm_32: {
6826 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6827 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6828 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6830 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6832 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6833 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6834 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6835 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6836 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6837 TmpInst.addOperand(Inst.getOperand(5));
6842 // VLD4DUP single 3-element structure to all lanes instructions.
6843 case ARM::VLD4DUPdAsm_8:
6844 case ARM::VLD4DUPdAsm_16:
6845 case ARM::VLD4DUPdAsm_32:
6846 case ARM::VLD4DUPqAsm_8:
6847 case ARM::VLD4DUPqAsm_16:
6848 case ARM::VLD4DUPqAsm_32: {
6851 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6852 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6853 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6855 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6857 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6859 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6860 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6861 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6862 TmpInst.addOperand(Inst.getOperand(4));
6867 case ARM::VLD4DUPdWB_fixed_Asm_8:
6868 case ARM::VLD4DUPdWB_fixed_Asm_16:
6869 case ARM::VLD4DUPdWB_fixed_Asm_32:
6870 case ARM::VLD4DUPqWB_fixed_Asm_8:
6871 case ARM::VLD4DUPqWB_fixed_Asm_16:
6872 case ARM::VLD4DUPqWB_fixed_Asm_32: {
6875 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6876 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6877 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6879 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6881 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6883 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6884 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6885 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6886 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6887 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6888 TmpInst.addOperand(Inst.getOperand(4));
6893 case ARM::VLD4DUPdWB_register_Asm_8:
6894 case ARM::VLD4DUPdWB_register_Asm_16:
6895 case ARM::VLD4DUPdWB_register_Asm_32:
6896 case ARM::VLD4DUPqWB_register_Asm_8:
6897 case ARM::VLD4DUPqWB_register_Asm_16:
6898 case ARM::VLD4DUPqWB_register_Asm_32: {
6901 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6902 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6903 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6905 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6907 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6909 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6910 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6911 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6912 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6913 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6914 TmpInst.addOperand(Inst.getOperand(5));
6919 // VLD4 multiple 4-element structure instructions.
6920 case ARM::VLD4dAsm_8:
6921 case ARM::VLD4dAsm_16:
6922 case ARM::VLD4dAsm_32:
6923 case ARM::VLD4qAsm_8:
6924 case ARM::VLD4qAsm_16:
6925 case ARM::VLD4qAsm_32: {
6928 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6929 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6930 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6932 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6934 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6936 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6937 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6938 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6939 TmpInst.addOperand(Inst.getOperand(4));
6944 case ARM::VLD4dWB_fixed_Asm_8:
6945 case ARM::VLD4dWB_fixed_Asm_16:
6946 case ARM::VLD4dWB_fixed_Asm_32:
6947 case ARM::VLD4qWB_fixed_Asm_8:
6948 case ARM::VLD4qWB_fixed_Asm_16:
6949 case ARM::VLD4qWB_fixed_Asm_32: {
6952 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6953 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6954 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6956 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6958 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6960 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6961 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6962 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6963 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6964 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6965 TmpInst.addOperand(Inst.getOperand(4));
6970 case ARM::VLD4dWB_register_Asm_8:
6971 case ARM::VLD4dWB_register_Asm_16:
6972 case ARM::VLD4dWB_register_Asm_32:
6973 case ARM::VLD4qWB_register_Asm_8:
6974 case ARM::VLD4qWB_register_Asm_16:
6975 case ARM::VLD4qWB_register_Asm_32: {
6978 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6979 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6980 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6982 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6984 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6986 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6987 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6988 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6989 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6990 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6991 TmpInst.addOperand(Inst.getOperand(5));
6996 // VST3 multiple 3-element structure instructions.
6997 case ARM::VST3dAsm_8:
6998 case ARM::VST3dAsm_16:
6999 case ARM::VST3dAsm_32:
7000 case ARM::VST3qAsm_8:
7001 case ARM::VST3qAsm_16:
7002 case ARM::VST3qAsm_32: {
7005 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7006 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7007 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7008 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7009 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7011 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7013 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7014 TmpInst.addOperand(Inst.getOperand(4));
7019 case ARM::VST3dWB_fixed_Asm_8:
7020 case ARM::VST3dWB_fixed_Asm_16:
7021 case ARM::VST3dWB_fixed_Asm_32:
7022 case ARM::VST3qWB_fixed_Asm_8:
7023 case ARM::VST3qWB_fixed_Asm_16:
7024 case ARM::VST3qWB_fixed_Asm_32: {
7027 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7028 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7029 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7030 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7031 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
7032 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7033 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7035 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7037 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7038 TmpInst.addOperand(Inst.getOperand(4));
7043 case ARM::VST3dWB_register_Asm_8:
7044 case ARM::VST3dWB_register_Asm_16:
7045 case ARM::VST3dWB_register_Asm_32:
7046 case ARM::VST3qWB_register_Asm_8:
7047 case ARM::VST3qWB_register_Asm_16:
7048 case ARM::VST3qWB_register_Asm_32: {
7051 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7052 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7053 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7054 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7055 TmpInst.addOperand(Inst.getOperand(3)); // Rm
7056 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7057 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7059 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7061 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7062 TmpInst.addOperand(Inst.getOperand(5));
7067 // VST4 multiple 3-element structure instructions.
7068 case ARM::VST4dAsm_8:
7069 case ARM::VST4dAsm_16:
7070 case ARM::VST4dAsm_32:
7071 case ARM::VST4qAsm_8:
7072 case ARM::VST4qAsm_16:
7073 case ARM::VST4qAsm_32: {
7076 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7077 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7078 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7079 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7080 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7082 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7084 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7086 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7087 TmpInst.addOperand(Inst.getOperand(4));
7092 case ARM::VST4dWB_fixed_Asm_8:
7093 case ARM::VST4dWB_fixed_Asm_16:
7094 case ARM::VST4dWB_fixed_Asm_32:
7095 case ARM::VST4qWB_fixed_Asm_8:
7096 case ARM::VST4qWB_fixed_Asm_16:
7097 case ARM::VST4qWB_fixed_Asm_32: {
7100 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7101 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7102 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7103 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7104 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
7105 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7106 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7108 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7110 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7112 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7113 TmpInst.addOperand(Inst.getOperand(4));
7118 case ARM::VST4dWB_register_Asm_8:
7119 case ARM::VST4dWB_register_Asm_16:
7120 case ARM::VST4dWB_register_Asm_32:
7121 case ARM::VST4qWB_register_Asm_8:
7122 case ARM::VST4qWB_register_Asm_16:
7123 case ARM::VST4qWB_register_Asm_32: {
7126 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7127 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7128 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7129 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7130 TmpInst.addOperand(Inst.getOperand(3)); // Rm
7131 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7132 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7134 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7136 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7138 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7139 TmpInst.addOperand(Inst.getOperand(5));
7144 // Handle encoding choice for the shift-immediate instructions.
7147 case ARM::t2ASRri: {
7148 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7149 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7150 Inst.getOperand(5).getReg() == (inITBlock() ? 0 : ARM::CPSR) &&
7151 !(static_cast<ARMOperand*>(Operands[3])->isToken() &&
7152 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w")) {
7154 switch (Inst.getOpcode()) {
7155 default: llvm_unreachable("unexpected opcode");
7156 case ARM::t2LSLri: NewOpc = ARM::tLSLri; break;
7157 case ARM::t2LSRri: NewOpc = ARM::tLSRri; break;
7158 case ARM::t2ASRri: NewOpc = ARM::tASRri; break;
7160 // The Thumb1 operands aren't in the same order. Awesome, eh?
7162 TmpInst.setOpcode(NewOpc);
7163 TmpInst.addOperand(Inst.getOperand(0));
7164 TmpInst.addOperand(Inst.getOperand(5));
7165 TmpInst.addOperand(Inst.getOperand(1));
7166 TmpInst.addOperand(Inst.getOperand(2));
7167 TmpInst.addOperand(Inst.getOperand(3));
7168 TmpInst.addOperand(Inst.getOperand(4));
7175 // Handle the Thumb2 mode MOV complex aliases.
7177 case ARM::t2MOVSsr: {
7178 // Which instruction to expand to depends on the CCOut operand and
7179 // whether we're in an IT block if the register operands are low
7181 bool isNarrow = false;
7182 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7183 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7184 isARMLowRegister(Inst.getOperand(2).getReg()) &&
7185 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7186 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsr))
7190 switch(ARM_AM::getSORegShOp(Inst.getOperand(3).getImm())) {
7191 default: llvm_unreachable("unexpected opcode!");
7192 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRrr : ARM::t2ASRrr; break;
7193 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRrr : ARM::t2LSRrr; break;
7194 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLrr : ARM::t2LSLrr; break;
7195 case ARM_AM::ror: newOpc = isNarrow ? ARM::tROR : ARM::t2RORrr; break;
7197 TmpInst.setOpcode(newOpc);
7198 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7200 TmpInst.addOperand(MCOperand::CreateReg(
7201 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
7202 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7203 TmpInst.addOperand(Inst.getOperand(2)); // Rm
7204 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7205 TmpInst.addOperand(Inst.getOperand(5));
7207 TmpInst.addOperand(MCOperand::CreateReg(
7208 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
7213 case ARM::t2MOVSsi: {
7214 // Which instruction to expand to depends on the CCOut operand and
7215 // whether we're in an IT block if the register operands are low
7217 bool isNarrow = false;
7218 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7219 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7220 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsi))
7224 switch(ARM_AM::getSORegShOp(Inst.getOperand(2).getImm())) {
7225 default: llvm_unreachable("unexpected opcode!");
7226 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRri : ARM::t2ASRri; break;
7227 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRri : ARM::t2LSRri; break;
7228 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLri : ARM::t2LSLri; break;
7229 case ARM_AM::ror: newOpc = ARM::t2RORri; isNarrow = false; break;
7230 case ARM_AM::rrx: isNarrow = false; newOpc = ARM::t2RRX; break;
7232 unsigned Amount = ARM_AM::getSORegOffset(Inst.getOperand(2).getImm());
7233 if (Amount == 32) Amount = 0;
7234 TmpInst.setOpcode(newOpc);
7235 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7237 TmpInst.addOperand(MCOperand::CreateReg(
7238 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
7239 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7240 if (newOpc != ARM::t2RRX)
7241 TmpInst.addOperand(MCOperand::CreateImm(Amount));
7242 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7243 TmpInst.addOperand(Inst.getOperand(4));
7245 TmpInst.addOperand(MCOperand::CreateReg(
7246 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
7250 // Handle the ARM mode MOV complex aliases.
7255 ARM_AM::ShiftOpc ShiftTy;
7256 switch(Inst.getOpcode()) {
7257 default: llvm_unreachable("unexpected opcode!");
7258 case ARM::ASRr: ShiftTy = ARM_AM::asr; break;
7259 case ARM::LSRr: ShiftTy = ARM_AM::lsr; break;
7260 case ARM::LSLr: ShiftTy = ARM_AM::lsl; break;
7261 case ARM::RORr: ShiftTy = ARM_AM::ror; break;
7263 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, 0);
7265 TmpInst.setOpcode(ARM::MOVsr);
7266 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7267 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7268 TmpInst.addOperand(Inst.getOperand(2)); // Rm
7269 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7270 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7271 TmpInst.addOperand(Inst.getOperand(4));
7272 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
7280 ARM_AM::ShiftOpc ShiftTy;
7281 switch(Inst.getOpcode()) {
7282 default: llvm_unreachable("unexpected opcode!");
7283 case ARM::ASRi: ShiftTy = ARM_AM::asr; break;
7284 case ARM::LSRi: ShiftTy = ARM_AM::lsr; break;
7285 case ARM::LSLi: ShiftTy = ARM_AM::lsl; break;
7286 case ARM::RORi: ShiftTy = ARM_AM::ror; break;
7288 // A shift by zero is a plain MOVr, not a MOVsi.
7289 unsigned Amt = Inst.getOperand(2).getImm();
7290 unsigned Opc = Amt == 0 ? ARM::MOVr : ARM::MOVsi;
7291 // A shift by 32 should be encoded as 0 when permitted
7292 if (Amt == 32 && (ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr))
7294 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, Amt);
7296 TmpInst.setOpcode(Opc);
7297 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7298 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7299 if (Opc == ARM::MOVsi)
7300 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7301 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7302 TmpInst.addOperand(Inst.getOperand(4));
7303 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
7308 unsigned Shifter = ARM_AM::getSORegOpc(ARM_AM::rrx, 0);
7310 TmpInst.setOpcode(ARM::MOVsi);
7311 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7312 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7313 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7314 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7315 TmpInst.addOperand(Inst.getOperand(3));
7316 TmpInst.addOperand(Inst.getOperand(4)); // cc_out
7320 case ARM::t2LDMIA_UPD: {
7321 // If this is a load of a single register, then we should use
7322 // a post-indexed LDR instruction instead, per the ARM ARM.
7323 if (Inst.getNumOperands() != 5)
7326 TmpInst.setOpcode(ARM::t2LDR_POST);
7327 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7328 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7329 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7330 TmpInst.addOperand(MCOperand::CreateImm(4));
7331 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7332 TmpInst.addOperand(Inst.getOperand(3));
7336 case ARM::t2STMDB_UPD: {
7337 // If this is a store of a single register, then we should use
7338 // a pre-indexed STR instruction instead, per the ARM ARM.
7339 if (Inst.getNumOperands() != 5)
7342 TmpInst.setOpcode(ARM::t2STR_PRE);
7343 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7344 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7345 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7346 TmpInst.addOperand(MCOperand::CreateImm(-4));
7347 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7348 TmpInst.addOperand(Inst.getOperand(3));
7352 case ARM::LDMIA_UPD:
7353 // If this is a load of a single register via a 'pop', then we should use
7354 // a post-indexed LDR instruction instead, per the ARM ARM.
7355 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "pop" &&
7356 Inst.getNumOperands() == 5) {
7358 TmpInst.setOpcode(ARM::LDR_POST_IMM);
7359 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7360 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7361 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7362 TmpInst.addOperand(MCOperand::CreateReg(0)); // am2offset
7363 TmpInst.addOperand(MCOperand::CreateImm(4));
7364 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7365 TmpInst.addOperand(Inst.getOperand(3));
7370 case ARM::STMDB_UPD:
7371 // If this is a store of a single register via a 'push', then we should use
7372 // a pre-indexed STR instruction instead, per the ARM ARM.
7373 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "push" &&
7374 Inst.getNumOperands() == 5) {
7376 TmpInst.setOpcode(ARM::STR_PRE_IMM);
7377 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7378 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7379 TmpInst.addOperand(Inst.getOperand(1)); // addrmode_imm12
7380 TmpInst.addOperand(MCOperand::CreateImm(-4));
7381 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7382 TmpInst.addOperand(Inst.getOperand(3));
7386 case ARM::t2ADDri12:
7387 // If the immediate fits for encoding T3 (t2ADDri) and the generic "add"
7388 // mnemonic was used (not "addw"), encoding T3 is preferred.
7389 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "add" ||
7390 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
7392 Inst.setOpcode(ARM::t2ADDri);
7393 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7395 case ARM::t2SUBri12:
7396 // If the immediate fits for encoding T3 (t2SUBri) and the generic "sub"
7397 // mnemonic was used (not "subw"), encoding T3 is preferred.
7398 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "sub" ||
7399 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
7401 Inst.setOpcode(ARM::t2SUBri);
7402 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7405 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
7406 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
7407 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
7408 // to encoding T1 if <Rd> is omitted."
7409 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
7410 Inst.setOpcode(ARM::tADDi3);
7415 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
7416 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
7417 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
7418 // to encoding T1 if <Rd> is omitted."
7419 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
7420 Inst.setOpcode(ARM::tSUBi3);
7425 case ARM::t2SUBri: {
7426 // If the destination and first source operand are the same, and
7427 // the flags are compatible with the current IT status, use encoding T2
7428 // instead of T3. For compatibility with the system 'as'. Make sure the
7429 // wide encoding wasn't explicit.
7430 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
7431 !isARMLowRegister(Inst.getOperand(0).getReg()) ||
7432 (unsigned)Inst.getOperand(2).getImm() > 255 ||
7433 ((!inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR) ||
7434 (inITBlock() && Inst.getOperand(5).getReg() != 0)) ||
7435 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7436 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
7439 TmpInst.setOpcode(Inst.getOpcode() == ARM::t2ADDri ?
7440 ARM::tADDi8 : ARM::tSUBi8);
7441 TmpInst.addOperand(Inst.getOperand(0));
7442 TmpInst.addOperand(Inst.getOperand(5));
7443 TmpInst.addOperand(Inst.getOperand(0));
7444 TmpInst.addOperand(Inst.getOperand(2));
7445 TmpInst.addOperand(Inst.getOperand(3));
7446 TmpInst.addOperand(Inst.getOperand(4));
7450 case ARM::t2ADDrr: {
7451 // If the destination and first source operand are the same, and
7452 // there's no setting of the flags, use encoding T2 instead of T3.
7453 // Note that this is only for ADD, not SUB. This mirrors the system
7454 // 'as' behaviour. Make sure the wide encoding wasn't explicit.
7455 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
7456 Inst.getOperand(5).getReg() != 0 ||
7457 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7458 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
7461 TmpInst.setOpcode(ARM::tADDhirr);
7462 TmpInst.addOperand(Inst.getOperand(0));
7463 TmpInst.addOperand(Inst.getOperand(0));
7464 TmpInst.addOperand(Inst.getOperand(2));
7465 TmpInst.addOperand(Inst.getOperand(3));
7466 TmpInst.addOperand(Inst.getOperand(4));
7470 case ARM::tADDrSP: {
7471 // If the non-SP source operand and the destination operand are not the
7472 // same, we need to use the 32-bit encoding if it's available.
7473 if (Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
7474 Inst.setOpcode(ARM::t2ADDrr);
7475 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7481 // A Thumb conditional branch outside of an IT block is a tBcc.
7482 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()) {
7483 Inst.setOpcode(ARM::tBcc);
7488 // A Thumb2 conditional branch outside of an IT block is a t2Bcc.
7489 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()){
7490 Inst.setOpcode(ARM::t2Bcc);
7495 // If the conditional is AL or we're in an IT block, we really want t2B.
7496 if (Inst.getOperand(1).getImm() == ARMCC::AL || inITBlock()) {
7497 Inst.setOpcode(ARM::t2B);
7502 // If the conditional is AL, we really want tB.
7503 if (Inst.getOperand(1).getImm() == ARMCC::AL) {
7504 Inst.setOpcode(ARM::tB);
7509 // If the register list contains any high registers, or if the writeback
7510 // doesn't match what tLDMIA can do, we need to use the 32-bit encoding
7511 // instead if we're in Thumb2. Otherwise, this should have generated
7512 // an error in validateInstruction().
7513 unsigned Rn = Inst.getOperand(0).getReg();
7514 bool hasWritebackToken =
7515 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7516 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
7517 bool listContainsBase;
7518 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) ||
7519 (!listContainsBase && !hasWritebackToken) ||
7520 (listContainsBase && hasWritebackToken)) {
7521 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7522 assert (isThumbTwo());
7523 Inst.setOpcode(hasWritebackToken ? ARM::t2LDMIA_UPD : ARM::t2LDMIA);
7524 // If we're switching to the updating version, we need to insert
7525 // the writeback tied operand.
7526 if (hasWritebackToken)
7527 Inst.insert(Inst.begin(),
7528 MCOperand::CreateReg(Inst.getOperand(0).getReg()));
7533 case ARM::tSTMIA_UPD: {
7534 // If the register list contains any high registers, we need to use
7535 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7536 // should have generated an error in validateInstruction().
7537 unsigned Rn = Inst.getOperand(0).getReg();
7538 bool listContainsBase;
7539 if (checkLowRegisterList(Inst, 4, Rn, 0, listContainsBase)) {
7540 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7541 assert (isThumbTwo());
7542 Inst.setOpcode(ARM::t2STMIA_UPD);
7548 bool listContainsBase;
7549 // If the register list contains any high registers, we need to use
7550 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7551 // should have generated an error in validateInstruction().
7552 if (!checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase))
7554 assert (isThumbTwo());
7555 Inst.setOpcode(ARM::t2LDMIA_UPD);
7556 // Add the base register and writeback operands.
7557 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7558 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7562 bool listContainsBase;
7563 if (!checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase))
7565 assert (isThumbTwo());
7566 Inst.setOpcode(ARM::t2STMDB_UPD);
7567 // Add the base register and writeback operands.
7568 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7569 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7573 // If we can use the 16-bit encoding and the user didn't explicitly
7574 // request the 32-bit variant, transform it here.
7575 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7576 (unsigned)Inst.getOperand(1).getImm() <= 255 &&
7577 ((!inITBlock() && Inst.getOperand(2).getImm() == ARMCC::AL &&
7578 Inst.getOperand(4).getReg() == ARM::CPSR) ||
7579 (inITBlock() && Inst.getOperand(4).getReg() == 0)) &&
7580 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7581 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7582 // The operands aren't in the same order for tMOVi8...
7584 TmpInst.setOpcode(ARM::tMOVi8);
7585 TmpInst.addOperand(Inst.getOperand(0));
7586 TmpInst.addOperand(Inst.getOperand(4));
7587 TmpInst.addOperand(Inst.getOperand(1));
7588 TmpInst.addOperand(Inst.getOperand(2));
7589 TmpInst.addOperand(Inst.getOperand(3));
7596 // If we can use the 16-bit encoding and the user didn't explicitly
7597 // request the 32-bit variant, transform it here.
7598 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7599 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7600 Inst.getOperand(2).getImm() == ARMCC::AL &&
7601 Inst.getOperand(4).getReg() == ARM::CPSR &&
7602 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7603 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7604 // The operands aren't the same for tMOV[S]r... (no cc_out)
7606 TmpInst.setOpcode(Inst.getOperand(4).getReg() ? ARM::tMOVSr : ARM::tMOVr);
7607 TmpInst.addOperand(Inst.getOperand(0));
7608 TmpInst.addOperand(Inst.getOperand(1));
7609 TmpInst.addOperand(Inst.getOperand(2));
7610 TmpInst.addOperand(Inst.getOperand(3));
7620 // If we can use the 16-bit encoding and the user didn't explicitly
7621 // request the 32-bit variant, transform it here.
7622 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7623 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7624 Inst.getOperand(2).getImm() == 0 &&
7625 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7626 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7628 switch (Inst.getOpcode()) {
7629 default: llvm_unreachable("Illegal opcode!");
7630 case ARM::t2SXTH: NewOpc = ARM::tSXTH; break;
7631 case ARM::t2SXTB: NewOpc = ARM::tSXTB; break;
7632 case ARM::t2UXTH: NewOpc = ARM::tUXTH; break;
7633 case ARM::t2UXTB: NewOpc = ARM::tUXTB; break;
7635 // The operands aren't the same for thumb1 (no rotate operand).
7637 TmpInst.setOpcode(NewOpc);
7638 TmpInst.addOperand(Inst.getOperand(0));
7639 TmpInst.addOperand(Inst.getOperand(1));
7640 TmpInst.addOperand(Inst.getOperand(3));
7641 TmpInst.addOperand(Inst.getOperand(4));
7648 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(2).getImm());
7649 // rrx shifts and asr/lsr of #32 is encoded as 0
7650 if (SOpc == ARM_AM::rrx || SOpc == ARM_AM::asr || SOpc == ARM_AM::lsr)
7652 if (ARM_AM::getSORegOffset(Inst.getOperand(2).getImm()) == 0) {
7653 // Shifting by zero is accepted as a vanilla 'MOVr'
7655 TmpInst.setOpcode(ARM::MOVr);
7656 TmpInst.addOperand(Inst.getOperand(0));
7657 TmpInst.addOperand(Inst.getOperand(1));
7658 TmpInst.addOperand(Inst.getOperand(3));
7659 TmpInst.addOperand(Inst.getOperand(4));
7660 TmpInst.addOperand(Inst.getOperand(5));
7673 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(3).getImm());
7674 if (SOpc == ARM_AM::rrx) return false;
7675 switch (Inst.getOpcode()) {
7676 default: llvm_unreachable("unexpected opcode!");
7677 case ARM::ANDrsi: newOpc = ARM::ANDrr; break;
7678 case ARM::ORRrsi: newOpc = ARM::ORRrr; break;
7679 case ARM::EORrsi: newOpc = ARM::EORrr; break;
7680 case ARM::BICrsi: newOpc = ARM::BICrr; break;
7681 case ARM::SUBrsi: newOpc = ARM::SUBrr; break;
7682 case ARM::ADDrsi: newOpc = ARM::ADDrr; break;
7684 // If the shift is by zero, use the non-shifted instruction definition.
7685 // The exception is for right shifts, where 0 == 32
7686 if (ARM_AM::getSORegOffset(Inst.getOperand(3).getImm()) == 0 &&
7687 !(SOpc == ARM_AM::lsr || SOpc == ARM_AM::asr)) {
7689 TmpInst.setOpcode(newOpc);
7690 TmpInst.addOperand(Inst.getOperand(0));
7691 TmpInst.addOperand(Inst.getOperand(1));
7692 TmpInst.addOperand(Inst.getOperand(2));
7693 TmpInst.addOperand(Inst.getOperand(4));
7694 TmpInst.addOperand(Inst.getOperand(5));
7695 TmpInst.addOperand(Inst.getOperand(6));
7703 // The mask bits for all but the first condition are represented as
7704 // the low bit of the condition code value implies 't'. We currently
7705 // always have 1 implies 't', so XOR toggle the bits if the low bit
7706 // of the condition code is zero.
7707 MCOperand &MO = Inst.getOperand(1);
7708 unsigned Mask = MO.getImm();
7709 unsigned OrigMask = Mask;
7710 unsigned TZ = countTrailingZeros(Mask);
7711 if ((Inst.getOperand(0).getImm() & 1) == 0) {
7712 assert(Mask && TZ <= 3 && "illegal IT mask value!");
7713 Mask ^= (0xE << TZ) & 0xF;
7717 // Set up the IT block state according to the IT instruction we just
7719 assert(!inITBlock() && "nested IT blocks?!");
7720 ITState.Cond = ARMCC::CondCodes(Inst.getOperand(0).getImm());
7721 ITState.Mask = OrigMask; // Use the original mask, not the updated one.
7722 ITState.CurPosition = 0;
7723 ITState.FirstCond = true;
7733 // Assemblers should use the narrow encodings of these instructions when permissible.
7734 if ((isARMLowRegister(Inst.getOperand(1).getReg()) &&
7735 isARMLowRegister(Inst.getOperand(2).getReg())) &&
7736 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7737 ((!inITBlock() && Inst.getOperand(5).getReg() == ARM::CPSR) ||
7738 (inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR)) &&
7739 (!static_cast<ARMOperand*>(Operands[3])->isToken() ||
7740 !static_cast<ARMOperand*>(Operands[3])->getToken().equals_lower(".w"))) {
7742 switch (Inst.getOpcode()) {
7743 default: llvm_unreachable("unexpected opcode");
7744 case ARM::t2LSLrr: NewOpc = ARM::tLSLrr; break;
7745 case ARM::t2LSRrr: NewOpc = ARM::tLSRrr; break;
7746 case ARM::t2ASRrr: NewOpc = ARM::tASRrr; break;
7747 case ARM::t2SBCrr: NewOpc = ARM::tSBC; break;
7748 case ARM::t2RORrr: NewOpc = ARM::tROR; break;
7749 case ARM::t2BICrr: NewOpc = ARM::tBIC; break;
7752 TmpInst.setOpcode(NewOpc);
7753 TmpInst.addOperand(Inst.getOperand(0));
7754 TmpInst.addOperand(Inst.getOperand(5));
7755 TmpInst.addOperand(Inst.getOperand(1));
7756 TmpInst.addOperand(Inst.getOperand(2));
7757 TmpInst.addOperand(Inst.getOperand(3));
7758 TmpInst.addOperand(Inst.getOperand(4));
7769 // Assemblers should use the narrow encodings of these instructions when permissible.
7770 // These instructions are special in that they are commutable, so shorter encodings
7771 // are available more often.
7772 if ((isARMLowRegister(Inst.getOperand(1).getReg()) &&
7773 isARMLowRegister(Inst.getOperand(2).getReg())) &&
7774 (Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() ||
7775 Inst.getOperand(0).getReg() == Inst.getOperand(2).getReg()) &&
7776 ((!inITBlock() && Inst.getOperand(5).getReg() == ARM::CPSR) ||
7777 (inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR)) &&
7778 (!static_cast<ARMOperand*>(Operands[3])->isToken() ||
7779 !static_cast<ARMOperand*>(Operands[3])->getToken().equals_lower(".w"))) {
7781 switch (Inst.getOpcode()) {
7782 default: llvm_unreachable("unexpected opcode");
7783 case ARM::t2ADCrr: NewOpc = ARM::tADC; break;
7784 case ARM::t2ANDrr: NewOpc = ARM::tAND; break;
7785 case ARM::t2EORrr: NewOpc = ARM::tEOR; break;
7786 case ARM::t2ORRrr: NewOpc = ARM::tORR; break;
7789 TmpInst.setOpcode(NewOpc);
7790 TmpInst.addOperand(Inst.getOperand(0));
7791 TmpInst.addOperand(Inst.getOperand(5));
7792 if (Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg()) {
7793 TmpInst.addOperand(Inst.getOperand(1));
7794 TmpInst.addOperand(Inst.getOperand(2));
7796 TmpInst.addOperand(Inst.getOperand(2));
7797 TmpInst.addOperand(Inst.getOperand(1));
7799 TmpInst.addOperand(Inst.getOperand(3));
7800 TmpInst.addOperand(Inst.getOperand(4));
7810 unsigned ARMAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
7811 // 16-bit thumb arithmetic instructions either require or preclude the 'S'
7812 // suffix depending on whether they're in an IT block or not.
7813 unsigned Opc = Inst.getOpcode();
7814 const MCInstrDesc &MCID = MII.get(Opc);
7815 if (MCID.TSFlags & ARMII::ThumbArithFlagSetting) {
7816 assert(MCID.hasOptionalDef() &&
7817 "optionally flag setting instruction missing optional def operand");
7818 assert(MCID.NumOperands == Inst.getNumOperands() &&
7819 "operand count mismatch!");
7820 // Find the optional-def operand (cc_out).
7823 !MCID.OpInfo[OpNo].isOptionalDef() && OpNo < MCID.NumOperands;
7826 // If we're parsing Thumb1, reject it completely.
7827 if (isThumbOne() && Inst.getOperand(OpNo).getReg() != ARM::CPSR)
7828 return Match_MnemonicFail;
7829 // If we're parsing Thumb2, which form is legal depends on whether we're
7831 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() != ARM::CPSR &&
7833 return Match_RequiresITBlock;
7834 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() == ARM::CPSR &&
7836 return Match_RequiresNotITBlock;
7838 // Some high-register supporting Thumb1 encodings only allow both registers
7839 // to be from r0-r7 when in Thumb2.
7840 else if (Opc == ARM::tADDhirr && isThumbOne() &&
7841 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7842 isARMLowRegister(Inst.getOperand(2).getReg()))
7843 return Match_RequiresThumb2;
7844 // Others only require ARMv6 or later.
7845 else if (Opc == ARM::tMOVr && isThumbOne() && !hasV6Ops() &&
7846 isARMLowRegister(Inst.getOperand(0).getReg()) &&
7847 isARMLowRegister(Inst.getOperand(1).getReg()))
7848 return Match_RequiresV6;
7849 return Match_Success;
7852 template<> inline bool IsCPSRDead<MCInst>(MCInst* Instr) {
7853 return true; // In an assembly source, no need to second-guess
7856 static const char *getSubtargetFeatureName(unsigned Val);
7858 MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
7859 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
7860 MCStreamer &Out, unsigned &ErrorInfo,
7861 bool MatchingInlineAsm) {
7863 unsigned MatchResult;
7865 MatchResult = MatchInstructionImpl(Operands, Inst, ErrorInfo,
7867 switch (MatchResult) {
7870 // Context sensitive operand constraints aren't handled by the matcher,
7871 // so check them here.
7872 if (validateInstruction(Inst, Operands)) {
7873 // Still progress the IT block, otherwise one wrong condition causes
7874 // nasty cascading errors.
7875 forwardITPosition();
7879 { // processInstruction() updates inITBlock state, we need to save it away
7880 bool wasInITBlock = inITBlock();
7882 // Some instructions need post-processing to, for example, tweak which
7883 // encoding is selected. Loop on it while changes happen so the
7884 // individual transformations can chain off each other. E.g.,
7885 // tPOP(r8)->t2LDMIA_UPD(sp,r8)->t2STR_POST(sp,r8)
7886 while (processInstruction(Inst, Operands))
7889 // Only after the instruction is fully processed, we can validate it
7890 if (wasInITBlock && hasV8Ops() && isThumb() &&
7891 !isV8EligibleForIT(&Inst)) {
7892 Warning(IDLoc, "deprecated instruction in IT block");
7896 // Only move forward at the very end so that everything in validate
7897 // and process gets a consistent answer about whether we're in an IT
7899 forwardITPosition();
7901 // ITasm is an ARM mode pseudo-instruction that just sets the ITblock and
7902 // doesn't actually encode.
7903 if (Inst.getOpcode() == ARM::ITasm)
7907 Out.EmitInstruction(Inst, STI);
7909 case Match_MissingFeature: {
7910 assert(ErrorInfo && "Unknown missing feature!");
7911 // Special case the error message for the very common case where only
7912 // a single subtarget feature is missing (Thumb vs. ARM, e.g.).
7913 std::string Msg = "instruction requires:";
7915 for (unsigned i = 0; i < (sizeof(ErrorInfo)*8-1); ++i) {
7916 if (ErrorInfo & Mask) {
7918 Msg += getSubtargetFeatureName(ErrorInfo & Mask);
7922 return Error(IDLoc, Msg);
7924 case Match_InvalidOperand: {
7925 SMLoc ErrorLoc = IDLoc;
7926 if (ErrorInfo != ~0U) {
7927 if (ErrorInfo >= Operands.size())
7928 return Error(IDLoc, "too few operands for instruction");
7930 ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7931 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7934 return Error(ErrorLoc, "invalid operand for instruction");
7936 case Match_MnemonicFail:
7937 return Error(IDLoc, "invalid instruction",
7938 ((ARMOperand*)Operands[0])->getLocRange());
7939 case Match_RequiresNotITBlock:
7940 return Error(IDLoc, "flag setting instruction only valid outside IT block");
7941 case Match_RequiresITBlock:
7942 return Error(IDLoc, "instruction only valid inside IT block");
7943 case Match_RequiresV6:
7944 return Error(IDLoc, "instruction variant requires ARMv6 or later");
7945 case Match_RequiresThumb2:
7946 return Error(IDLoc, "instruction variant requires Thumb2");
7947 case Match_ImmRange0_15: {
7948 SMLoc ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7949 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7950 return Error(ErrorLoc, "immediate operand must be in the range [0,15]");
7952 case Match_ImmRange0_239: {
7953 SMLoc ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7954 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7955 return Error(ErrorLoc, "immediate operand must be in the range [0,239]");
7959 llvm_unreachable("Implement any new match types added!");
7962 /// parseDirective parses the arm specific directives
7963 bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) {
7964 StringRef IDVal = DirectiveID.getIdentifier();
7965 if (IDVal == ".word")
7966 return parseLiteralValues(4, DirectiveID.getLoc());
7967 else if (IDVal == ".short" || IDVal == ".hword")
7968 return parseLiteralValues(2, DirectiveID.getLoc());
7969 else if (IDVal == ".thumb")
7970 return parseDirectiveThumb(DirectiveID.getLoc());
7971 else if (IDVal == ".arm")
7972 return parseDirectiveARM(DirectiveID.getLoc());
7973 else if (IDVal == ".thumb_func")
7974 return parseDirectiveThumbFunc(DirectiveID.getLoc());
7975 else if (IDVal == ".code")
7976 return parseDirectiveCode(DirectiveID.getLoc());
7977 else if (IDVal == ".syntax")
7978 return parseDirectiveSyntax(DirectiveID.getLoc());
7979 else if (IDVal == ".unreq")
7980 return parseDirectiveUnreq(DirectiveID.getLoc());
7981 else if (IDVal == ".arch")
7982 return parseDirectiveArch(DirectiveID.getLoc());
7983 else if (IDVal == ".eabi_attribute")
7984 return parseDirectiveEabiAttr(DirectiveID.getLoc());
7985 else if (IDVal == ".cpu")
7986 return parseDirectiveCPU(DirectiveID.getLoc());
7987 else if (IDVal == ".fpu")
7988 return parseDirectiveFPU(DirectiveID.getLoc());
7989 else if (IDVal == ".fnstart")
7990 return parseDirectiveFnStart(DirectiveID.getLoc());
7991 else if (IDVal == ".fnend")
7992 return parseDirectiveFnEnd(DirectiveID.getLoc());
7993 else if (IDVal == ".cantunwind")
7994 return parseDirectiveCantUnwind(DirectiveID.getLoc());
7995 else if (IDVal == ".personality")
7996 return parseDirectivePersonality(DirectiveID.getLoc());
7997 else if (IDVal == ".handlerdata")
7998 return parseDirectiveHandlerData(DirectiveID.getLoc());
7999 else if (IDVal == ".setfp")
8000 return parseDirectiveSetFP(DirectiveID.getLoc());
8001 else if (IDVal == ".pad")
8002 return parseDirectivePad(DirectiveID.getLoc());
8003 else if (IDVal == ".save")
8004 return parseDirectiveRegSave(DirectiveID.getLoc(), false);
8005 else if (IDVal == ".vsave")
8006 return parseDirectiveRegSave(DirectiveID.getLoc(), true);
8007 else if (IDVal == ".inst")
8008 return parseDirectiveInst(DirectiveID.getLoc());
8009 else if (IDVal == ".inst.n")
8010 return parseDirectiveInst(DirectiveID.getLoc(), 'n');
8011 else if (IDVal == ".inst.w")
8012 return parseDirectiveInst(DirectiveID.getLoc(), 'w');
8013 else if (IDVal == ".ltorg" || IDVal == ".pool")
8014 return parseDirectiveLtorg(DirectiveID.getLoc());
8015 else if (IDVal == ".even")
8016 return parseDirectiveEven(DirectiveID.getLoc());
8017 else if (IDVal == ".personalityindex")
8018 return parseDirectivePersonalityIndex(DirectiveID.getLoc());
8019 else if (IDVal == ".unwind_raw")
8020 return parseDirectiveUnwindRaw(DirectiveID.getLoc());
8021 else if (IDVal == ".tlsdescseq")
8022 return parseDirectiveTLSDescSeq(DirectiveID.getLoc());
8023 else if (IDVal == ".movsp")
8024 return parseDirectiveMovSP(DirectiveID.getLoc());
8025 else if (IDVal == ".object_arch")
8026 return parseDirectiveObjectArch(DirectiveID.getLoc());
8027 else if (IDVal == ".arch_extension")
8028 return parseDirectiveArchExtension(DirectiveID.getLoc());
8029 else if (IDVal == ".align")
8030 return parseDirectiveAlign(DirectiveID.getLoc());
8034 /// parseLiteralValues
8035 /// ::= .hword expression [, expression]*
8036 /// ::= .short expression [, expression]*
8037 /// ::= .word expression [, expression]*
8038 bool ARMAsmParser::parseLiteralValues(unsigned Size, SMLoc L) {
8039 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8041 const MCExpr *Value;
8042 if (getParser().parseExpression(Value)) {
8043 Parser.eatToEndOfStatement();
8047 getParser().getStreamer().EmitValue(Value, Size);
8049 if (getLexer().is(AsmToken::EndOfStatement))
8052 // FIXME: Improve diagnostic.
8053 if (getLexer().isNot(AsmToken::Comma)) {
8054 Error(L, "unexpected token in directive");
8065 /// parseDirectiveThumb
8067 bool ARMAsmParser::parseDirectiveThumb(SMLoc L) {
8068 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8069 Error(L, "unexpected token in directive");
8075 Error(L, "target does not support Thumb mode");
8081 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
8085 /// parseDirectiveARM
8087 bool ARMAsmParser::parseDirectiveARM(SMLoc L) {
8088 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8089 Error(L, "unexpected token in directive");
8095 Error(L, "target does not support ARM mode");
8101 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
8105 void ARMAsmParser::onLabelParsed(MCSymbol *Symbol) {
8106 if (NextSymbolIsThumb) {
8107 getParser().getStreamer().EmitThumbFunc(Symbol);
8108 NextSymbolIsThumb = false;
8112 /// parseDirectiveThumbFunc
8113 /// ::= .thumbfunc symbol_name
8114 bool ARMAsmParser::parseDirectiveThumbFunc(SMLoc L) {
8115 const MCAsmInfo *MAI = getParser().getStreamer().getContext().getAsmInfo();
8116 bool isMachO = MAI->hasSubsectionsViaSymbols();
8118 // Darwin asm has (optionally) function name after .thumb_func direction
8121 const AsmToken &Tok = Parser.getTok();
8122 if (Tok.isNot(AsmToken::EndOfStatement)) {
8123 if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String)) {
8124 Error(L, "unexpected token in .thumb_func directive");
8129 getParser().getContext().GetOrCreateSymbol(Tok.getIdentifier());
8130 getParser().getStreamer().EmitThumbFunc(Func);
8131 Parser.Lex(); // Consume the identifier token.
8136 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8137 Error(L, "unexpected token in directive");
8141 NextSymbolIsThumb = true;
8145 /// parseDirectiveSyntax
8146 /// ::= .syntax unified | divided
8147 bool ARMAsmParser::parseDirectiveSyntax(SMLoc L) {
8148 const AsmToken &Tok = Parser.getTok();
8149 if (Tok.isNot(AsmToken::Identifier)) {
8150 Error(L, "unexpected token in .syntax directive");
8154 StringRef Mode = Tok.getString();
8155 if (Mode == "unified" || Mode == "UNIFIED") {
8157 } else if (Mode == "divided" || Mode == "DIVIDED") {
8158 Error(L, "'.syntax divided' arm asssembly not supported");
8161 Error(L, "unrecognized syntax mode in .syntax directive");
8165 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8166 Error(Parser.getTok().getLoc(), "unexpected token in directive");
8171 // TODO tell the MC streamer the mode
8172 // getParser().getStreamer().Emit???();
8176 /// parseDirectiveCode
8177 /// ::= .code 16 | 32
8178 bool ARMAsmParser::parseDirectiveCode(SMLoc L) {
8179 const AsmToken &Tok = Parser.getTok();
8180 if (Tok.isNot(AsmToken::Integer)) {
8181 Error(L, "unexpected token in .code directive");
8184 int64_t Val = Parser.getTok().getIntVal();
8185 if (Val != 16 && Val != 32) {
8186 Error(L, "invalid operand to .code directive");
8191 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8192 Error(Parser.getTok().getLoc(), "unexpected token in directive");
8199 Error(L, "target does not support Thumb mode");
8205 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
8208 Error(L, "target does not support ARM mode");
8214 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
8220 /// parseDirectiveReq
8221 /// ::= name .req registername
8222 bool ARMAsmParser::parseDirectiveReq(StringRef Name, SMLoc L) {
8223 Parser.Lex(); // Eat the '.req' token.
8225 SMLoc SRegLoc, ERegLoc;
8226 if (ParseRegister(Reg, SRegLoc, ERegLoc)) {
8227 Parser.eatToEndOfStatement();
8228 Error(SRegLoc, "register name expected");
8232 // Shouldn't be anything else.
8233 if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
8234 Parser.eatToEndOfStatement();
8235 Error(Parser.getTok().getLoc(), "unexpected input in .req directive.");
8239 Parser.Lex(); // Consume the EndOfStatement
8241 if (RegisterReqs.GetOrCreateValue(Name, Reg).getValue() != Reg) {
8242 Error(SRegLoc, "redefinition of '" + Name + "' does not match original.");
8249 /// parseDirectiveUneq
8250 /// ::= .unreq registername
8251 bool ARMAsmParser::parseDirectiveUnreq(SMLoc L) {
8252 if (Parser.getTok().isNot(AsmToken::Identifier)) {
8253 Parser.eatToEndOfStatement();
8254 Error(L, "unexpected input in .unreq directive.");
8257 RegisterReqs.erase(Parser.getTok().getIdentifier().lower());
8258 Parser.Lex(); // Eat the identifier.
8262 /// parseDirectiveArch
8264 bool ARMAsmParser::parseDirectiveArch(SMLoc L) {
8265 StringRef Arch = getParser().parseStringToEndOfStatement().trim();
8267 unsigned ID = StringSwitch<unsigned>(Arch)
8268 #define ARM_ARCH_NAME(NAME, ID, DEFAULT_CPU_NAME, DEFAULT_CPU_ARCH) \
8269 .Case(NAME, ARM::ID)
8270 #define ARM_ARCH_ALIAS(NAME, ID) \
8271 .Case(NAME, ARM::ID)
8272 #include "MCTargetDesc/ARMArchName.def"
8273 .Default(ARM::INVALID_ARCH);
8275 if (ID == ARM::INVALID_ARCH) {
8276 Error(L, "Unknown arch name");
8280 getTargetStreamer().emitArch(ID);
8284 /// parseDirectiveEabiAttr
8285 /// ::= .eabi_attribute int, int [, "str"]
8286 /// ::= .eabi_attribute Tag_name, int [, "str"]
8287 bool ARMAsmParser::parseDirectiveEabiAttr(SMLoc L) {
8291 TagLoc = Parser.getTok().getLoc();
8292 if (Parser.getTok().is(AsmToken::Identifier)) {
8293 StringRef Name = Parser.getTok().getIdentifier();
8294 Tag = ARMBuildAttrs::AttrTypeFromString(Name);
8296 Error(TagLoc, "attribute name not recognised: " + Name);
8297 Parser.eatToEndOfStatement();
8302 const MCExpr *AttrExpr;
8304 TagLoc = Parser.getTok().getLoc();
8305 if (Parser.parseExpression(AttrExpr)) {
8306 Parser.eatToEndOfStatement();
8310 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(AttrExpr);
8312 Error(TagLoc, "expected numeric constant");
8313 Parser.eatToEndOfStatement();
8317 Tag = CE->getValue();
8320 if (Parser.getTok().isNot(AsmToken::Comma)) {
8321 Error(Parser.getTok().getLoc(), "comma expected");
8322 Parser.eatToEndOfStatement();
8325 Parser.Lex(); // skip comma
8327 StringRef StringValue = "";
8328 bool IsStringValue = false;
8330 int64_t IntegerValue = 0;
8331 bool IsIntegerValue = false;
8333 if (Tag == ARMBuildAttrs::CPU_raw_name || Tag == ARMBuildAttrs::CPU_name)
8334 IsStringValue = true;
8335 else if (Tag == ARMBuildAttrs::compatibility) {
8336 IsStringValue = true;
8337 IsIntegerValue = true;
8338 } else if (Tag < 32 || Tag % 2 == 0)
8339 IsIntegerValue = true;
8340 else if (Tag % 2 == 1)
8341 IsStringValue = true;
8343 llvm_unreachable("invalid tag type");
8345 if (IsIntegerValue) {
8346 const MCExpr *ValueExpr;
8347 SMLoc ValueExprLoc = Parser.getTok().getLoc();
8348 if (Parser.parseExpression(ValueExpr)) {
8349 Parser.eatToEndOfStatement();
8353 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ValueExpr);
8355 Error(ValueExprLoc, "expected numeric constant");
8356 Parser.eatToEndOfStatement();
8360 IntegerValue = CE->getValue();
8363 if (Tag == ARMBuildAttrs::compatibility) {
8364 if (Parser.getTok().isNot(AsmToken::Comma))
8365 IsStringValue = false;
8370 if (IsStringValue) {
8371 if (Parser.getTok().isNot(AsmToken::String)) {
8372 Error(Parser.getTok().getLoc(), "bad string constant");
8373 Parser.eatToEndOfStatement();
8377 StringValue = Parser.getTok().getStringContents();
8381 if (IsIntegerValue && IsStringValue) {
8382 assert(Tag == ARMBuildAttrs::compatibility);
8383 getTargetStreamer().emitIntTextAttribute(Tag, IntegerValue, StringValue);
8384 } else if (IsIntegerValue)
8385 getTargetStreamer().emitAttribute(Tag, IntegerValue);
8386 else if (IsStringValue)
8387 getTargetStreamer().emitTextAttribute(Tag, StringValue);
8391 /// parseDirectiveCPU
8393 bool ARMAsmParser::parseDirectiveCPU(SMLoc L) {
8394 StringRef CPU = getParser().parseStringToEndOfStatement().trim();
8395 getTargetStreamer().emitTextAttribute(ARMBuildAttrs::CPU_name, CPU);
8399 /// parseDirectiveFPU
8401 bool ARMAsmParser::parseDirectiveFPU(SMLoc L) {
8402 StringRef FPU = getParser().parseStringToEndOfStatement().trim();
8404 unsigned ID = StringSwitch<unsigned>(FPU)
8405 #define ARM_FPU_NAME(NAME, ID) .Case(NAME, ARM::ID)
8406 #include "ARMFPUName.def"
8407 .Default(ARM::INVALID_FPU);
8409 if (ID == ARM::INVALID_FPU) {
8410 Error(L, "Unknown FPU name");
8414 getTargetStreamer().emitFPU(ID);
8418 /// parseDirectiveFnStart
8420 bool ARMAsmParser::parseDirectiveFnStart(SMLoc L) {
8421 if (UC.hasFnStart()) {
8422 Error(L, ".fnstart starts before the end of previous one");
8423 UC.emitFnStartLocNotes();
8427 // Reset the unwind directives parser state
8430 getTargetStreamer().emitFnStart();
8432 UC.recordFnStart(L);
8436 /// parseDirectiveFnEnd
8438 bool ARMAsmParser::parseDirectiveFnEnd(SMLoc L) {
8439 // Check the ordering of unwind directives
8440 if (!UC.hasFnStart()) {
8441 Error(L, ".fnstart must precede .fnend directive");
8445 // Reset the unwind directives parser state
8446 getTargetStreamer().emitFnEnd();
8452 /// parseDirectiveCantUnwind
8454 bool ARMAsmParser::parseDirectiveCantUnwind(SMLoc L) {
8455 UC.recordCantUnwind(L);
8457 // Check the ordering of unwind directives
8458 if (!UC.hasFnStart()) {
8459 Error(L, ".fnstart must precede .cantunwind directive");
8462 if (UC.hasHandlerData()) {
8463 Error(L, ".cantunwind can't be used with .handlerdata directive");
8464 UC.emitHandlerDataLocNotes();
8467 if (UC.hasPersonality()) {
8468 Error(L, ".cantunwind can't be used with .personality directive");
8469 UC.emitPersonalityLocNotes();
8473 getTargetStreamer().emitCantUnwind();
8477 /// parseDirectivePersonality
8478 /// ::= .personality name
8479 bool ARMAsmParser::parseDirectivePersonality(SMLoc L) {
8480 bool HasExistingPersonality = UC.hasPersonality();
8482 UC.recordPersonality(L);
8484 // Check the ordering of unwind directives
8485 if (!UC.hasFnStart()) {
8486 Error(L, ".fnstart must precede .personality directive");
8489 if (UC.cantUnwind()) {
8490 Error(L, ".personality can't be used with .cantunwind directive");
8491 UC.emitCantUnwindLocNotes();
8494 if (UC.hasHandlerData()) {
8495 Error(L, ".personality must precede .handlerdata directive");
8496 UC.emitHandlerDataLocNotes();
8499 if (HasExistingPersonality) {
8500 Parser.eatToEndOfStatement();
8501 Error(L, "multiple personality directives");
8502 UC.emitPersonalityLocNotes();
8506 // Parse the name of the personality routine
8507 if (Parser.getTok().isNot(AsmToken::Identifier)) {
8508 Parser.eatToEndOfStatement();
8509 Error(L, "unexpected input in .personality directive.");
8512 StringRef Name(Parser.getTok().getIdentifier());
8515 MCSymbol *PR = getParser().getContext().GetOrCreateSymbol(Name);
8516 getTargetStreamer().emitPersonality(PR);
8520 /// parseDirectiveHandlerData
8521 /// ::= .handlerdata
8522 bool ARMAsmParser::parseDirectiveHandlerData(SMLoc L) {
8523 UC.recordHandlerData(L);
8525 // Check the ordering of unwind directives
8526 if (!UC.hasFnStart()) {
8527 Error(L, ".fnstart must precede .personality directive");
8530 if (UC.cantUnwind()) {
8531 Error(L, ".handlerdata can't be used with .cantunwind directive");
8532 UC.emitCantUnwindLocNotes();
8536 getTargetStreamer().emitHandlerData();
8540 /// parseDirectiveSetFP
8541 /// ::= .setfp fpreg, spreg [, offset]
8542 bool ARMAsmParser::parseDirectiveSetFP(SMLoc L) {
8543 // Check the ordering of unwind directives
8544 if (!UC.hasFnStart()) {
8545 Error(L, ".fnstart must precede .setfp directive");
8548 if (UC.hasHandlerData()) {
8549 Error(L, ".setfp must precede .handlerdata directive");
8554 SMLoc FPRegLoc = Parser.getTok().getLoc();
8555 int FPReg = tryParseRegister();
8557 Error(FPRegLoc, "frame pointer register expected");
8562 if (Parser.getTok().isNot(AsmToken::Comma)) {
8563 Error(Parser.getTok().getLoc(), "comma expected");
8566 Parser.Lex(); // skip comma
8569 SMLoc SPRegLoc = Parser.getTok().getLoc();
8570 int SPReg = tryParseRegister();
8572 Error(SPRegLoc, "stack pointer register expected");
8576 if (SPReg != ARM::SP && SPReg != UC.getFPReg()) {
8577 Error(SPRegLoc, "register should be either $sp or the latest fp register");
8581 // Update the frame pointer register
8582 UC.saveFPReg(FPReg);
8586 if (Parser.getTok().is(AsmToken::Comma)) {
8587 Parser.Lex(); // skip comma
8589 if (Parser.getTok().isNot(AsmToken::Hash) &&
8590 Parser.getTok().isNot(AsmToken::Dollar)) {
8591 Error(Parser.getTok().getLoc(), "'#' expected");
8594 Parser.Lex(); // skip hash token.
8596 const MCExpr *OffsetExpr;
8597 SMLoc ExLoc = Parser.getTok().getLoc();
8599 if (getParser().parseExpression(OffsetExpr, EndLoc)) {
8600 Error(ExLoc, "malformed setfp offset");
8603 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8605 Error(ExLoc, "setfp offset must be an immediate");
8609 Offset = CE->getValue();
8612 getTargetStreamer().emitSetFP(static_cast<unsigned>(FPReg),
8613 static_cast<unsigned>(SPReg), Offset);
8619 bool ARMAsmParser::parseDirectivePad(SMLoc L) {
8620 // Check the ordering of unwind directives
8621 if (!UC.hasFnStart()) {
8622 Error(L, ".fnstart must precede .pad directive");
8625 if (UC.hasHandlerData()) {
8626 Error(L, ".pad must precede .handlerdata directive");
8631 if (Parser.getTok().isNot(AsmToken::Hash) &&
8632 Parser.getTok().isNot(AsmToken::Dollar)) {
8633 Error(Parser.getTok().getLoc(), "'#' expected");
8636 Parser.Lex(); // skip hash token.
8638 const MCExpr *OffsetExpr;
8639 SMLoc ExLoc = Parser.getTok().getLoc();
8641 if (getParser().parseExpression(OffsetExpr, EndLoc)) {
8642 Error(ExLoc, "malformed pad offset");
8645 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8647 Error(ExLoc, "pad offset must be an immediate");
8651 getTargetStreamer().emitPad(CE->getValue());
8655 /// parseDirectiveRegSave
8656 /// ::= .save { registers }
8657 /// ::= .vsave { registers }
8658 bool ARMAsmParser::parseDirectiveRegSave(SMLoc L, bool IsVector) {
8659 // Check the ordering of unwind directives
8660 if (!UC.hasFnStart()) {
8661 Error(L, ".fnstart must precede .save or .vsave directives");
8664 if (UC.hasHandlerData()) {
8665 Error(L, ".save or .vsave must precede .handlerdata directive");
8669 // RAII object to make sure parsed operands are deleted.
8670 struct CleanupObject {
8671 SmallVector<MCParsedAsmOperand *, 1> Operands;
8673 for (unsigned I = 0, E = Operands.size(); I != E; ++I)
8678 // Parse the register list
8679 if (parseRegisterList(CO.Operands))
8681 ARMOperand *Op = (ARMOperand*)CO.Operands[0];
8682 if (!IsVector && !Op->isRegList()) {
8683 Error(L, ".save expects GPR registers");
8686 if (IsVector && !Op->isDPRRegList()) {
8687 Error(L, ".vsave expects DPR registers");
8691 getTargetStreamer().emitRegSave(Op->getRegList(), IsVector);
8695 /// parseDirectiveInst
8696 /// ::= .inst opcode [, ...]
8697 /// ::= .inst.n opcode [, ...]
8698 /// ::= .inst.w opcode [, ...]
8699 bool ARMAsmParser::parseDirectiveInst(SMLoc Loc, char Suffix) {
8711 Parser.eatToEndOfStatement();
8712 Error(Loc, "cannot determine Thumb instruction size, "
8713 "use inst.n/inst.w instead");
8718 Parser.eatToEndOfStatement();
8719 Error(Loc, "width suffixes are invalid in ARM mode");
8725 if (getLexer().is(AsmToken::EndOfStatement)) {
8726 Parser.eatToEndOfStatement();
8727 Error(Loc, "expected expression following directive");
8734 if (getParser().parseExpression(Expr)) {
8735 Error(Loc, "expected expression");
8739 const MCConstantExpr *Value = dyn_cast_or_null<MCConstantExpr>(Expr);
8741 Error(Loc, "expected constant expression");
8747 if (Value->getValue() > 0xffff) {
8748 Error(Loc, "inst.n operand is too big, use inst.w instead");
8753 if (Value->getValue() > 0xffffffff) {
8755 StringRef(Suffix ? "inst.w" : "inst") + " operand is too big");
8760 llvm_unreachable("only supported widths are 2 and 4");
8763 getTargetStreamer().emitInst(Value->getValue(), Suffix);
8765 if (getLexer().is(AsmToken::EndOfStatement))
8768 if (getLexer().isNot(AsmToken::Comma)) {
8769 Error(Loc, "unexpected token in directive");
8780 /// parseDirectiveLtorg
8781 /// ::= .ltorg | .pool
8782 bool ARMAsmParser::parseDirectiveLtorg(SMLoc L) {
8783 getTargetStreamer().emitCurrentConstantPool();
8787 bool ARMAsmParser::parseDirectiveEven(SMLoc L) {
8788 const MCSection *Section = getStreamer().getCurrentSection().first;
8790 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8791 TokError("unexpected token in directive");
8796 getStreamer().InitSections();
8797 Section = getStreamer().getCurrentSection().first;
8800 if (Section->UseCodeAlign())
8801 getStreamer().EmitCodeAlignment(2);
8803 getStreamer().EmitValueToAlignment(2);
8808 /// parseDirectivePersonalityIndex
8809 /// ::= .personalityindex index
8810 bool ARMAsmParser::parseDirectivePersonalityIndex(SMLoc L) {
8811 bool HasExistingPersonality = UC.hasPersonality();
8813 UC.recordPersonalityIndex(L);
8815 if (!UC.hasFnStart()) {
8816 Parser.eatToEndOfStatement();
8817 Error(L, ".fnstart must precede .personalityindex directive");
8820 if (UC.cantUnwind()) {
8821 Parser.eatToEndOfStatement();
8822 Error(L, ".personalityindex cannot be used with .cantunwind");
8823 UC.emitCantUnwindLocNotes();
8826 if (UC.hasHandlerData()) {
8827 Parser.eatToEndOfStatement();
8828 Error(L, ".personalityindex must precede .handlerdata directive");
8829 UC.emitHandlerDataLocNotes();
8832 if (HasExistingPersonality) {
8833 Parser.eatToEndOfStatement();
8834 Error(L, "multiple personality directives");
8835 UC.emitPersonalityLocNotes();
8839 const MCExpr *IndexExpression;
8840 SMLoc IndexLoc = Parser.getTok().getLoc();
8841 if (Parser.parseExpression(IndexExpression)) {
8842 Parser.eatToEndOfStatement();
8846 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(IndexExpression);
8848 Parser.eatToEndOfStatement();
8849 Error(IndexLoc, "index must be a constant number");
8852 if (CE->getValue() < 0 ||
8853 CE->getValue() >= ARM::EHABI::NUM_PERSONALITY_INDEX) {
8854 Parser.eatToEndOfStatement();
8855 Error(IndexLoc, "personality routine index should be in range [0-3]");
8859 getTargetStreamer().emitPersonalityIndex(CE->getValue());
8863 /// parseDirectiveUnwindRaw
8864 /// ::= .unwind_raw offset, opcode [, opcode...]
8865 bool ARMAsmParser::parseDirectiveUnwindRaw(SMLoc L) {
8866 if (!UC.hasFnStart()) {
8867 Parser.eatToEndOfStatement();
8868 Error(L, ".fnstart must precede .unwind_raw directives");
8872 int64_t StackOffset;
8874 const MCExpr *OffsetExpr;
8875 SMLoc OffsetLoc = getLexer().getLoc();
8876 if (getLexer().is(AsmToken::EndOfStatement) ||
8877 getParser().parseExpression(OffsetExpr)) {
8878 Error(OffsetLoc, "expected expression");
8879 Parser.eatToEndOfStatement();
8883 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8885 Error(OffsetLoc, "offset must be a constant");
8886 Parser.eatToEndOfStatement();
8890 StackOffset = CE->getValue();
8892 if (getLexer().isNot(AsmToken::Comma)) {
8893 Error(getLexer().getLoc(), "expected comma");
8894 Parser.eatToEndOfStatement();
8899 SmallVector<uint8_t, 16> Opcodes;
8903 SMLoc OpcodeLoc = getLexer().getLoc();
8904 if (getLexer().is(AsmToken::EndOfStatement) || Parser.parseExpression(OE)) {
8905 Error(OpcodeLoc, "expected opcode expression");
8906 Parser.eatToEndOfStatement();
8910 const MCConstantExpr *OC = dyn_cast<MCConstantExpr>(OE);
8912 Error(OpcodeLoc, "opcode value must be a constant");
8913 Parser.eatToEndOfStatement();
8917 const int64_t Opcode = OC->getValue();
8918 if (Opcode & ~0xff) {
8919 Error(OpcodeLoc, "invalid opcode");
8920 Parser.eatToEndOfStatement();
8924 Opcodes.push_back(uint8_t(Opcode));
8926 if (getLexer().is(AsmToken::EndOfStatement))
8929 if (getLexer().isNot(AsmToken::Comma)) {
8930 Error(getLexer().getLoc(), "unexpected token in directive");
8931 Parser.eatToEndOfStatement();
8938 getTargetStreamer().emitUnwindRaw(StackOffset, Opcodes);
8944 /// parseDirectiveTLSDescSeq
8945 /// ::= .tlsdescseq tls-variable
8946 bool ARMAsmParser::parseDirectiveTLSDescSeq(SMLoc L) {
8947 if (getLexer().isNot(AsmToken::Identifier)) {
8948 TokError("expected variable after '.tlsdescseq' directive");
8949 Parser.eatToEndOfStatement();
8953 const MCSymbolRefExpr *SRE =
8954 MCSymbolRefExpr::Create(Parser.getTok().getIdentifier(),
8955 MCSymbolRefExpr::VK_ARM_TLSDESCSEQ, getContext());
8958 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8959 Error(Parser.getTok().getLoc(), "unexpected token");
8960 Parser.eatToEndOfStatement();
8964 getTargetStreamer().AnnotateTLSDescriptorSequence(SRE);
8968 /// parseDirectiveMovSP
8969 /// ::= .movsp reg [, #offset]
8970 bool ARMAsmParser::parseDirectiveMovSP(SMLoc L) {
8971 if (!UC.hasFnStart()) {
8972 Parser.eatToEndOfStatement();
8973 Error(L, ".fnstart must precede .movsp directives");
8976 if (UC.getFPReg() != ARM::SP) {
8977 Parser.eatToEndOfStatement();
8978 Error(L, "unexpected .movsp directive");
8982 SMLoc SPRegLoc = Parser.getTok().getLoc();
8983 int SPReg = tryParseRegister();
8985 Parser.eatToEndOfStatement();
8986 Error(SPRegLoc, "register expected");
8990 if (SPReg == ARM::SP || SPReg == ARM::PC) {
8991 Parser.eatToEndOfStatement();
8992 Error(SPRegLoc, "sp and pc are not permitted in .movsp directive");
8997 if (Parser.getTok().is(AsmToken::Comma)) {
9000 if (Parser.getTok().isNot(AsmToken::Hash)) {
9001 Error(Parser.getTok().getLoc(), "expected #constant");
9002 Parser.eatToEndOfStatement();
9007 const MCExpr *OffsetExpr;
9008 SMLoc OffsetLoc = Parser.getTok().getLoc();
9009 if (Parser.parseExpression(OffsetExpr)) {
9010 Parser.eatToEndOfStatement();
9011 Error(OffsetLoc, "malformed offset expression");
9015 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
9017 Parser.eatToEndOfStatement();
9018 Error(OffsetLoc, "offset must be an immediate constant");
9022 Offset = CE->getValue();
9025 getTargetStreamer().emitMovSP(SPReg, Offset);
9026 UC.saveFPReg(SPReg);
9031 /// parseDirectiveObjectArch
9032 /// ::= .object_arch name
9033 bool ARMAsmParser::parseDirectiveObjectArch(SMLoc L) {
9034 if (getLexer().isNot(AsmToken::Identifier)) {
9035 Error(getLexer().getLoc(), "unexpected token");
9036 Parser.eatToEndOfStatement();
9040 StringRef Arch = Parser.getTok().getString();
9041 SMLoc ArchLoc = Parser.getTok().getLoc();
9044 unsigned ID = StringSwitch<unsigned>(Arch)
9045 #define ARM_ARCH_NAME(NAME, ID, DEFAULT_CPU_NAME, DEFAULT_CPU_ARCH) \
9046 .Case(NAME, ARM::ID)
9047 #define ARM_ARCH_ALIAS(NAME, ID) \
9048 .Case(NAME, ARM::ID)
9049 #include "MCTargetDesc/ARMArchName.def"
9050 #undef ARM_ARCH_NAME
9051 #undef ARM_ARCH_ALIAS
9052 .Default(ARM::INVALID_ARCH);
9054 if (ID == ARM::INVALID_ARCH) {
9055 Error(ArchLoc, "unknown architecture '" + Arch + "'");
9056 Parser.eatToEndOfStatement();
9060 getTargetStreamer().emitObjectArch(ID);
9062 if (getLexer().isNot(AsmToken::EndOfStatement)) {
9063 Error(getLexer().getLoc(), "unexpected token");
9064 Parser.eatToEndOfStatement();
9070 /// parseDirectiveAlign
9072 bool ARMAsmParser::parseDirectiveAlign(SMLoc L) {
9073 // NOTE: if this is not the end of the statement, fall back to the target
9074 // agnostic handling for this directive which will correctly handle this.
9075 if (getLexer().isNot(AsmToken::EndOfStatement))
9078 // '.align' is target specifically handled to mean 2**2 byte alignment.
9079 if (getStreamer().getCurrentSection().first->UseCodeAlign())
9080 getStreamer().EmitCodeAlignment(4, 0);
9082 getStreamer().EmitValueToAlignment(4, 0, 1, 0);
9087 /// Force static initialization.
9088 extern "C" void LLVMInitializeARMAsmParser() {
9089 RegisterMCAsmParser<ARMAsmParser> X(TheARMTarget);
9090 RegisterMCAsmParser<ARMAsmParser> Y(TheThumbTarget);
9093 #define GET_REGISTER_MATCHER
9094 #define GET_SUBTARGET_FEATURE_NAME
9095 #define GET_MATCHER_IMPLEMENTATION
9096 #include "ARMGenAsmMatcher.inc"
9098 static const struct ExtMapEntry {
9099 const char *Extension;
9100 const unsigned ArchCheck;
9101 const uint64_t Features;
9103 { "crc", Feature_HasV8, ARM::FeatureCRC },
9104 { "crypto", Feature_HasV8,
9105 ARM::FeatureCrypto | ARM::FeatureNEON | ARM::FeatureFPARMv8 },
9106 { "fp", Feature_HasV8, ARM::FeatureFPARMv8 },
9107 { "idiv", Feature_HasV7 | Feature_IsNotMClass,
9108 ARM::FeatureHWDiv | ARM::FeatureHWDivARM },
9109 // FIXME: iWMMXT not supported
9110 { "iwmmxt", Feature_None, 0 },
9111 // FIXME: iWMMXT2 not supported
9112 { "iwmmxt2", Feature_None, 0 },
9113 // FIXME: Maverick not supported
9114 { "maverick", Feature_None, 0 },
9115 { "mp", Feature_HasV7 | Feature_IsNotMClass, ARM::FeatureMP },
9116 // FIXME: ARMv6-m OS Extensions feature not checked
9117 { "os", Feature_None, 0 },
9118 // FIXME: Also available in ARMv6-K
9119 { "sec", Feature_HasV7, ARM::FeatureTrustZone },
9120 { "simd", Feature_HasV8, ARM::FeatureNEON | ARM::FeatureFPARMv8 },
9121 // FIXME: Only available in A-class, isel not predicated
9122 { "virt", Feature_HasV7, ARM::FeatureVirtualization },
9123 // FIXME: xscale not supported
9124 { "xscale", Feature_None, 0 },
9127 /// parseDirectiveArchExtension
9128 /// ::= .arch_extension [no]feature
9129 bool ARMAsmParser::parseDirectiveArchExtension(SMLoc L) {
9130 if (getLexer().isNot(AsmToken::Identifier)) {
9131 Error(getLexer().getLoc(), "unexpected token");
9132 Parser.eatToEndOfStatement();
9136 StringRef Extension = Parser.getTok().getString();
9137 SMLoc ExtLoc = Parser.getTok().getLoc();
9140 bool EnableFeature = true;
9141 if (Extension.startswith_lower("no")) {
9142 EnableFeature = false;
9143 Extension = Extension.substr(2);
9146 for (unsigned EI = 0, EE = array_lengthof(Extensions); EI != EE; ++EI) {
9147 if (Extensions[EI].Extension != Extension)
9150 unsigned FB = getAvailableFeatures();
9151 if ((FB & Extensions[EI].ArchCheck) != Extensions[EI].ArchCheck) {
9152 Error(ExtLoc, "architectural extension '" + Extension + "' is not "
9153 "allowed for the current base architecture");
9157 if (!Extensions[EI].Features)
9158 report_fatal_error("unsupported architectural extension: " + Extension);
9161 FB |= ComputeAvailableFeatures(Extensions[EI].Features);
9163 FB &= ~ComputeAvailableFeatures(Extensions[EI].Features);
9165 setAvailableFeatures(FB);
9169 Error(ExtLoc, "unknown architectural extension: " + Extension);
9170 Parser.eatToEndOfStatement();
9174 // Define this matcher function after the auto-generated include so we
9175 // have the match class enum definitions.
9176 unsigned ARMAsmParser::validateTargetOperandClass(MCParsedAsmOperand *AsmOp,
9178 ARMOperand *Op = static_cast<ARMOperand*>(AsmOp);
9179 // If the kind is a token for a literal immediate, check if our asm
9180 // operand matches. This is for InstAliases which have a fixed-value
9181 // immediate in the syntax.
9186 if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm()))
9187 if (CE->getValue() == 0)
9188 return Match_Success;
9192 const MCExpr *SOExpr = Op->getImm();
9194 if (!SOExpr->EvaluateAsAbsolute(Value))
9195 return Match_Success;
9196 assert((Value >= INT32_MIN && Value <= INT32_MAX) &&
9197 "expression value must be representiable in 32 bits");
9202 MRI->getRegClass(ARM::GPRRegClassID).contains(Op->getReg()))
9203 return Match_Success;
9206 return Match_InvalidOperand;