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/MCELF.h"
29 #include "llvm/MC/MCELFStreamer.h"
30 #include "llvm/MC/MCELFSymbolFlags.h"
31 #include "llvm/MC/MCExpr.h"
32 #include "llvm/MC/MCInst.h"
33 #include "llvm/MC/MCInstrDesc.h"
34 #include "llvm/MC/MCInstrInfo.h"
35 #include "llvm/MC/MCObjectFileInfo.h"
36 #include "llvm/MC/MCParser/MCAsmLexer.h"
37 #include "llvm/MC/MCParser/MCAsmParser.h"
38 #include "llvm/MC/MCParser/MCParsedAsmOperand.h"
39 #include "llvm/MC/MCRegisterInfo.h"
40 #include "llvm/MC/MCSection.h"
41 #include "llvm/MC/MCStreamer.h"
42 #include "llvm/MC/MCSubtargetInfo.h"
43 #include "llvm/MC/MCSymbol.h"
44 #include "llvm/MC/MCTargetAsmParser.h"
45 #include "llvm/Support/ARMBuildAttributes.h"
46 #include "llvm/Support/ARMEHABI.h"
47 #include "llvm/Support/COFF.h"
48 #include "llvm/Support/Debug.h"
49 #include "llvm/Support/ELF.h"
50 #include "llvm/Support/MathExtras.h"
51 #include "llvm/Support/SourceMgr.h"
52 #include "llvm/Support/TargetRegistry.h"
53 #include "llvm/Support/raw_ostream.h"
61 enum VectorLaneTy { NoLanes, AllLanes, IndexedLane };
66 typedef SmallVector<SMLoc, 4> Locs;
71 Locs PersonalityIndexLocs;
76 UnwindContext(MCAsmParser &P) : Parser(P), FPReg(ARM::SP) {}
78 bool hasFnStart() const { return !FnStartLocs.empty(); }
79 bool cantUnwind() const { return !CantUnwindLocs.empty(); }
80 bool hasHandlerData() const { return !HandlerDataLocs.empty(); }
81 bool hasPersonality() const {
82 return !(PersonalityLocs.empty() && PersonalityIndexLocs.empty());
85 void recordFnStart(SMLoc L) { FnStartLocs.push_back(L); }
86 void recordCantUnwind(SMLoc L) { CantUnwindLocs.push_back(L); }
87 void recordPersonality(SMLoc L) { PersonalityLocs.push_back(L); }
88 void recordHandlerData(SMLoc L) { HandlerDataLocs.push_back(L); }
89 void recordPersonalityIndex(SMLoc L) { PersonalityIndexLocs.push_back(L); }
91 void saveFPReg(int Reg) { FPReg = Reg; }
92 int getFPReg() const { return FPReg; }
94 void emitFnStartLocNotes() const {
95 for (Locs::const_iterator FI = FnStartLocs.begin(), FE = FnStartLocs.end();
97 Parser.Note(*FI, ".fnstart was specified here");
99 void emitCantUnwindLocNotes() const {
100 for (Locs::const_iterator UI = CantUnwindLocs.begin(),
101 UE = CantUnwindLocs.end(); UI != UE; ++UI)
102 Parser.Note(*UI, ".cantunwind was specified here");
104 void emitHandlerDataLocNotes() const {
105 for (Locs::const_iterator HI = HandlerDataLocs.begin(),
106 HE = HandlerDataLocs.end(); HI != HE; ++HI)
107 Parser.Note(*HI, ".handlerdata was specified here");
109 void emitPersonalityLocNotes() const {
110 for (Locs::const_iterator PI = PersonalityLocs.begin(),
111 PE = PersonalityLocs.end(),
112 PII = PersonalityIndexLocs.begin(),
113 PIE = PersonalityIndexLocs.end();
114 PI != PE || PII != PIE;) {
115 if (PI != PE && (PII == PIE || PI->getPointer() < PII->getPointer()))
116 Parser.Note(*PI++, ".personality was specified here");
117 else if (PII != PIE && (PI == PE || PII->getPointer() < PI->getPointer()))
118 Parser.Note(*PII++, ".personalityindex was specified here");
120 llvm_unreachable(".personality and .personalityindex cannot be "
121 "at the same location");
126 FnStartLocs = Locs();
127 CantUnwindLocs = Locs();
128 PersonalityLocs = Locs();
129 HandlerDataLocs = Locs();
130 PersonalityIndexLocs = Locs();
135 class ARMAsmParser : public MCTargetAsmParser {
136 MCSubtargetInfo &STI;
138 const MCInstrInfo &MII;
139 const MCRegisterInfo *MRI;
142 ARMTargetStreamer &getTargetStreamer() {
143 MCTargetStreamer &TS = *getParser().getStreamer().getTargetStreamer();
144 return static_cast<ARMTargetStreamer &>(TS);
147 // Map of register aliases registers via the .req directive.
148 StringMap<unsigned> RegisterReqs;
150 bool NextSymbolIsThumb;
153 ARMCC::CondCodes Cond; // Condition for IT block.
154 unsigned Mask:4; // Condition mask for instructions.
155 // Starting at first 1 (from lsb).
156 // '1' condition as indicated in IT.
157 // '0' inverse of condition (else).
158 // Count of instructions in IT block is
159 // 4 - trailingzeroes(mask)
161 bool FirstCond; // Explicit flag for when we're parsing the
162 // First instruction in the IT block. It's
163 // implied in the mask, so needs special
166 unsigned CurPosition; // Current position in parsing of IT
167 // block. In range [0,3]. Initialized
168 // according to count of instructions in block.
169 // ~0U if no active IT block.
171 bool inITBlock() { return ITState.CurPosition != ~0U;}
172 void forwardITPosition() {
173 if (!inITBlock()) return;
174 // Move to the next instruction in the IT block, if there is one. If not,
175 // mark the block as done.
176 unsigned TZ = countTrailingZeros(ITState.Mask);
177 if (++ITState.CurPosition == 5 - TZ)
178 ITState.CurPosition = ~0U; // Done with the IT block after this.
182 MCAsmParser &getParser() const { return Parser; }
183 MCAsmLexer &getLexer() const { return Parser.getLexer(); }
185 void Note(SMLoc L, const Twine &Msg, ArrayRef<SMRange> Ranges = None) {
186 return Parser.Note(L, Msg, Ranges);
188 bool Warning(SMLoc L, const Twine &Msg,
189 ArrayRef<SMRange> Ranges = None) {
190 return Parser.Warning(L, Msg, Ranges);
192 bool Error(SMLoc L, const Twine &Msg,
193 ArrayRef<SMRange> Ranges = None) {
194 return Parser.Error(L, Msg, Ranges);
197 int tryParseRegister();
198 bool tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &);
199 int tryParseShiftRegister(SmallVectorImpl<MCParsedAsmOperand*> &);
200 bool parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &);
201 bool parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &);
202 bool parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &, StringRef Mnemonic);
203 bool parsePrefix(ARMMCExpr::VariantKind &RefKind);
204 bool parseMemRegOffsetShift(ARM_AM::ShiftOpc &ShiftType,
205 unsigned &ShiftAmount);
206 bool parseLiteralValues(unsigned Size, SMLoc L);
207 bool parseDirectiveThumb(SMLoc L);
208 bool parseDirectiveARM(SMLoc L);
209 bool parseDirectiveThumbFunc(SMLoc L);
210 bool parseDirectiveCode(SMLoc L);
211 bool parseDirectiveSyntax(SMLoc L);
212 bool parseDirectiveReq(StringRef Name, SMLoc L);
213 bool parseDirectiveUnreq(SMLoc L);
214 bool parseDirectiveArch(SMLoc L);
215 bool parseDirectiveEabiAttr(SMLoc L);
216 bool parseDirectiveCPU(SMLoc L);
217 bool parseDirectiveFPU(SMLoc L);
218 bool parseDirectiveFnStart(SMLoc L);
219 bool parseDirectiveFnEnd(SMLoc L);
220 bool parseDirectiveCantUnwind(SMLoc L);
221 bool parseDirectivePersonality(SMLoc L);
222 bool parseDirectiveHandlerData(SMLoc L);
223 bool parseDirectiveSetFP(SMLoc L);
224 bool parseDirectivePad(SMLoc L);
225 bool parseDirectiveRegSave(SMLoc L, bool IsVector);
226 bool parseDirectiveInst(SMLoc L, char Suffix = '\0');
227 bool parseDirectiveLtorg(SMLoc L);
228 bool parseDirectiveEven(SMLoc L);
229 bool parseDirectivePersonalityIndex(SMLoc L);
230 bool parseDirectiveUnwindRaw(SMLoc L);
231 bool parseDirectiveTLSDescSeq(SMLoc L);
232 bool parseDirectiveMovSP(SMLoc L);
233 bool parseDirectiveObjectArch(SMLoc L);
234 bool parseDirectiveArchExtension(SMLoc L);
235 bool parseDirectiveAlign(SMLoc L);
236 bool parseDirectiveThumbSet(SMLoc L);
238 StringRef splitMnemonic(StringRef Mnemonic, unsigned &PredicationCode,
239 bool &CarrySetting, unsigned &ProcessorIMod,
241 void getMnemonicAcceptInfo(StringRef Mnemonic, StringRef FullInst,
242 bool &CanAcceptCarrySet,
243 bool &CanAcceptPredicationCode);
245 bool isThumb() const {
246 // FIXME: Can tablegen auto-generate this?
247 return (STI.getFeatureBits() & ARM::ModeThumb) != 0;
249 bool isThumbOne() const {
250 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2) == 0;
252 bool isThumbTwo() const {
253 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2);
255 bool hasThumb() const {
256 return STI.getFeatureBits() & ARM::HasV4TOps;
258 bool hasV6Ops() const {
259 return STI.getFeatureBits() & ARM::HasV6Ops;
261 bool hasV6MOps() const {
262 return STI.getFeatureBits() & ARM::HasV6MOps;
264 bool hasV7Ops() const {
265 return STI.getFeatureBits() & ARM::HasV7Ops;
267 bool hasV8Ops() const {
268 return STI.getFeatureBits() & ARM::HasV8Ops;
270 bool hasARM() const {
271 return !(STI.getFeatureBits() & ARM::FeatureNoARM);
275 unsigned FB = ComputeAvailableFeatures(STI.ToggleFeature(ARM::ModeThumb));
276 setAvailableFeatures(FB);
278 bool isMClass() const {
279 return STI.getFeatureBits() & ARM::FeatureMClass;
282 /// @name Auto-generated Match Functions
285 #define GET_ASSEMBLER_HEADER
286 #include "ARMGenAsmMatcher.inc"
290 OperandMatchResultTy parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*>&);
291 OperandMatchResultTy parseCoprocNumOperand(
292 SmallVectorImpl<MCParsedAsmOperand*>&);
293 OperandMatchResultTy parseCoprocRegOperand(
294 SmallVectorImpl<MCParsedAsmOperand*>&);
295 OperandMatchResultTy parseCoprocOptionOperand(
296 SmallVectorImpl<MCParsedAsmOperand*>&);
297 OperandMatchResultTy parseMemBarrierOptOperand(
298 SmallVectorImpl<MCParsedAsmOperand*>&);
299 OperandMatchResultTy parseInstSyncBarrierOptOperand(
300 SmallVectorImpl<MCParsedAsmOperand*>&);
301 OperandMatchResultTy parseProcIFlagsOperand(
302 SmallVectorImpl<MCParsedAsmOperand*>&);
303 OperandMatchResultTy parseMSRMaskOperand(
304 SmallVectorImpl<MCParsedAsmOperand*>&);
305 OperandMatchResultTy parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &O,
306 StringRef Op, int Low, int High);
307 OperandMatchResultTy parsePKHLSLImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
308 return parsePKHImm(O, "lsl", 0, 31);
310 OperandMatchResultTy parsePKHASRImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
311 return parsePKHImm(O, "asr", 1, 32);
313 OperandMatchResultTy parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*>&);
314 OperandMatchResultTy parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*>&);
315 OperandMatchResultTy parseRotImm(SmallVectorImpl<MCParsedAsmOperand*>&);
316 OperandMatchResultTy parseBitfield(SmallVectorImpl<MCParsedAsmOperand*>&);
317 OperandMatchResultTy parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*>&);
318 OperandMatchResultTy parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*>&);
319 OperandMatchResultTy parseFPImm(SmallVectorImpl<MCParsedAsmOperand*>&);
320 OperandMatchResultTy parseVectorList(SmallVectorImpl<MCParsedAsmOperand*>&);
321 OperandMatchResultTy parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index,
324 // Asm Match Converter Methods
325 void cvtThumbMultiply(MCInst &Inst,
326 const SmallVectorImpl<MCParsedAsmOperand*> &);
327 void cvtThumbBranches(MCInst &Inst,
328 const SmallVectorImpl<MCParsedAsmOperand*> &);
330 bool validateInstruction(MCInst &Inst,
331 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
332 bool processInstruction(MCInst &Inst,
333 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
334 bool shouldOmitCCOutOperand(StringRef Mnemonic,
335 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
336 bool shouldOmitPredicateOperand(StringRef Mnemonic,
337 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
339 enum ARMMatchResultTy {
340 Match_RequiresITBlock = FIRST_TARGET_MATCH_RESULT_TY,
341 Match_RequiresNotITBlock,
343 Match_RequiresThumb2,
344 #define GET_OPERAND_DIAGNOSTIC_TYPES
345 #include "ARMGenAsmMatcher.inc"
349 ARMAsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser,
350 const MCInstrInfo &MII)
351 : MCTargetAsmParser(), STI(_STI), Parser(_Parser), MII(MII), UC(_Parser) {
352 MCAsmParserExtension::Initialize(_Parser);
354 // Cache the MCRegisterInfo.
355 MRI = getContext().getRegisterInfo();
357 // Initialize the set of available features.
358 setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
360 // Not in an ITBlock to start with.
361 ITState.CurPosition = ~0U;
363 NextSymbolIsThumb = false;
366 // Implementation of the MCTargetAsmParser interface:
367 bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc) override;
369 ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
371 SmallVectorImpl<MCParsedAsmOperand*> &Operands) override;
372 bool ParseDirective(AsmToken DirectiveID) override;
374 unsigned validateTargetOperandClass(MCParsedAsmOperand *Op,
375 unsigned Kind) override;
376 unsigned checkTargetMatchPredicate(MCInst &Inst) override;
378 bool MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
379 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
380 MCStreamer &Out, unsigned &ErrorInfo,
381 bool MatchingInlineAsm) override;
382 void onLabelParsed(MCSymbol *Symbol) override;
384 } // end anonymous namespace
388 /// ARMOperand - Instances of this class represent a parsed ARM machine
390 class ARMOperand : public MCParsedAsmOperand {
400 k_InstSyncBarrierOpt,
411 k_VectorListAllLanes,
417 k_BitfieldDescriptor,
421 SMLoc StartLoc, EndLoc;
422 SmallVector<unsigned, 8> Registers;
425 ARMCC::CondCodes Val;
432 struct CoprocOptionOp {
445 ARM_ISB::InstSyncBOpt Val;
449 ARM_PROC::IFlags Val;
465 // A vector register list is a sequential list of 1 to 4 registers.
466 struct VectorListOp {
473 struct VectorIndexOp {
481 /// Combined record for all forms of ARM address expressions.
484 // Offset is in OffsetReg or OffsetImm. If both are zero, no offset
486 const MCConstantExpr *OffsetImm; // Offset immediate value
487 unsigned OffsetRegNum; // Offset register num, when OffsetImm == NULL
488 ARM_AM::ShiftOpc ShiftType; // Shift type for OffsetReg
489 unsigned ShiftImm; // shift for OffsetReg.
490 unsigned Alignment; // 0 = no alignment specified
491 // n = alignment in bytes (2, 4, 8, 16, or 32)
492 unsigned isNegative : 1; // Negated OffsetReg? (~'U' bit)
495 struct PostIdxRegOp {
498 ARM_AM::ShiftOpc ShiftTy;
502 struct ShifterImmOp {
507 struct RegShiftedRegOp {
508 ARM_AM::ShiftOpc ShiftTy;
514 struct RegShiftedImmOp {
515 ARM_AM::ShiftOpc ShiftTy;
532 struct CoprocOptionOp CoprocOption;
533 struct MBOptOp MBOpt;
534 struct ISBOptOp ISBOpt;
535 struct ITMaskOp ITMask;
536 struct IFlagsOp IFlags;
537 struct MMaskOp MMask;
540 struct VectorListOp VectorList;
541 struct VectorIndexOp VectorIndex;
543 struct MemoryOp Memory;
544 struct PostIdxRegOp PostIdxReg;
545 struct ShifterImmOp ShifterImm;
546 struct RegShiftedRegOp RegShiftedReg;
547 struct RegShiftedImmOp RegShiftedImm;
548 struct RotImmOp RotImm;
549 struct BitfieldOp Bitfield;
552 ARMOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
554 ARMOperand(const ARMOperand &o) : MCParsedAsmOperand() {
556 StartLoc = o.StartLoc;
573 case k_DPRRegisterList:
574 case k_SPRRegisterList:
575 Registers = o.Registers;
578 case k_VectorListAllLanes:
579 case k_VectorListIndexed:
580 VectorList = o.VectorList;
587 CoprocOption = o.CoprocOption;
592 case k_MemBarrierOpt:
595 case k_InstSyncBarrierOpt:
600 case k_PostIndexRegister:
601 PostIdxReg = o.PostIdxReg;
609 case k_ShifterImmediate:
610 ShifterImm = o.ShifterImm;
612 case k_ShiftedRegister:
613 RegShiftedReg = o.RegShiftedReg;
615 case k_ShiftedImmediate:
616 RegShiftedImm = o.RegShiftedImm;
618 case k_RotateImmediate:
621 case k_BitfieldDescriptor:
622 Bitfield = o.Bitfield;
625 VectorIndex = o.VectorIndex;
630 /// getStartLoc - Get the location of the first token of this operand.
631 SMLoc getStartLoc() const override { return StartLoc; }
632 /// getEndLoc - Get the location of the last token of this operand.
633 SMLoc getEndLoc() const override { return EndLoc; }
634 /// getLocRange - Get the range between the first and last token of this
636 SMRange getLocRange() const { return SMRange(StartLoc, EndLoc); }
638 ARMCC::CondCodes getCondCode() const {
639 assert(Kind == k_CondCode && "Invalid access!");
643 unsigned getCoproc() const {
644 assert((Kind == k_CoprocNum || Kind == k_CoprocReg) && "Invalid access!");
648 StringRef getToken() const {
649 assert(Kind == k_Token && "Invalid access!");
650 return StringRef(Tok.Data, Tok.Length);
653 unsigned getReg() const override {
654 assert((Kind == k_Register || Kind == k_CCOut) && "Invalid access!");
658 const SmallVectorImpl<unsigned> &getRegList() const {
659 assert((Kind == k_RegisterList || Kind == k_DPRRegisterList ||
660 Kind == k_SPRRegisterList) && "Invalid access!");
664 const MCExpr *getImm() const {
665 assert(isImm() && "Invalid access!");
669 unsigned getVectorIndex() const {
670 assert(Kind == k_VectorIndex && "Invalid access!");
671 return VectorIndex.Val;
674 ARM_MB::MemBOpt getMemBarrierOpt() const {
675 assert(Kind == k_MemBarrierOpt && "Invalid access!");
679 ARM_ISB::InstSyncBOpt getInstSyncBarrierOpt() const {
680 assert(Kind == k_InstSyncBarrierOpt && "Invalid access!");
684 ARM_PROC::IFlags getProcIFlags() const {
685 assert(Kind == k_ProcIFlags && "Invalid access!");
689 unsigned getMSRMask() const {
690 assert(Kind == k_MSRMask && "Invalid access!");
694 bool isCoprocNum() const { return Kind == k_CoprocNum; }
695 bool isCoprocReg() const { return Kind == k_CoprocReg; }
696 bool isCoprocOption() const { return Kind == k_CoprocOption; }
697 bool isCondCode() const { return Kind == k_CondCode; }
698 bool isCCOut() const { return Kind == k_CCOut; }
699 bool isITMask() const { return Kind == k_ITCondMask; }
700 bool isITCondCode() const { return Kind == k_CondCode; }
701 bool isImm() const override { return Kind == k_Immediate; }
702 // checks whether this operand is an unsigned offset which fits is a field
703 // of specified width and scaled by a specific number of bits
704 template<unsigned width, unsigned scale>
705 bool isUnsignedOffset() const {
706 if (!isImm()) return false;
707 if (isa<MCSymbolRefExpr>(Imm.Val)) return true;
708 if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Imm.Val)) {
709 int64_t Val = CE->getValue();
710 int64_t Align = 1LL << scale;
711 int64_t Max = Align * ((1LL << width) - 1);
712 return ((Val % Align) == 0) && (Val >= 0) && (Val <= Max);
716 // checks whether this operand is an signed offset which fits is a field
717 // of specified width and scaled by a specific number of bits
718 template<unsigned width, unsigned scale>
719 bool isSignedOffset() const {
720 if (!isImm()) return false;
721 if (isa<MCSymbolRefExpr>(Imm.Val)) return true;
722 if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Imm.Val)) {
723 int64_t Val = CE->getValue();
724 int64_t Align = 1LL << scale;
725 int64_t Max = Align * ((1LL << (width-1)) - 1);
726 int64_t Min = -Align * (1LL << (width-1));
727 return ((Val % Align) == 0) && (Val >= Min) && (Val <= Max);
732 // checks whether this operand is a memory operand computed as an offset
733 // applied to PC. the offset may have 8 bits of magnitude and is represented
734 // with two bits of shift. textually it may be either [pc, #imm], #imm or
735 // relocable expression...
736 bool isThumbMemPC() const {
739 if (isa<MCSymbolRefExpr>(Imm.Val)) return true;
740 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Imm.Val);
741 if (!CE) return false;
742 Val = CE->getValue();
745 if(!Memory.OffsetImm || Memory.OffsetRegNum) return false;
746 if(Memory.BaseRegNum != ARM::PC) return false;
747 Val = Memory.OffsetImm->getValue();
750 return ((Val % 4) == 0) && (Val >= 0) && (Val <= 1020);
752 bool isFPImm() const {
753 if (!isImm()) return false;
754 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
755 if (!CE) return false;
756 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
759 bool isFBits16() 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 >= 0 && Value <= 16;
766 bool isFBits32() 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 >= 1 && Value <= 32;
773 bool isImm8s4() 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 >= -1020 && Value <= 1020;
780 bool isImm0_1020s4() 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 <= 1020;
787 bool isImm0_508s4() 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 return ((Value & 3) == 0) && Value >= 0 && Value <= 508;
794 bool isImm0_508s4Neg() const {
795 if (!isImm()) return false;
796 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
797 if (!CE) return false;
798 int64_t Value = -CE->getValue();
799 // explicitly exclude zero. we want that to use the normal 0_508 version.
800 return ((Value & 3) == 0) && Value > 0 && Value <= 508;
802 bool isImm0_239() 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 < 240;
809 bool isImm0_255() 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 < 256;
816 bool isImm0_4095() 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_4095Neg() 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 < 4096;
830 bool isImm0_1() 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 < 2;
837 bool isImm0_3() 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 < 4;
844 bool isImm0_7() 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 < 8;
851 bool isImm0_15() 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 < 16;
858 bool isImm0_31() 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 < 32;
865 bool isImm0_63() const {
866 if (!isImm()) return false;
867 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
868 if (!CE) return false;
869 int64_t Value = CE->getValue();
870 return Value >= 0 && Value < 64;
872 bool isImm8() 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 isImm16() 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 isImm32() 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();
893 bool isShrImm8() 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 <= 8;
900 bool isShrImm16() 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 <= 16;
907 bool isShrImm32() 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 <= 32;
914 bool isShrImm64() 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 <= 64;
921 bool isImm1_7() 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 < 8;
928 bool isImm1_15() 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 < 16;
935 bool isImm1_31() 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 < 32;
942 bool isImm1_16() 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 < 17;
949 bool isImm1_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_32() 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 < 33;
963 bool isImm0_65535() const {
964 if (!isImm()) return false;
965 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
966 if (!CE) return false;
967 int64_t Value = CE->getValue();
968 return Value >= 0 && Value < 65536;
970 bool isImm256_65535Expr() const {
971 if (!isImm()) return false;
972 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
973 // If it's not a constant expression, it'll generate a fixup and be
975 if (!CE) return true;
976 int64_t Value = CE->getValue();
977 return Value >= 256 && Value < 65536;
979 bool isImm0_65535Expr() const {
980 if (!isImm()) return false;
981 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
982 // If it's not a constant expression, it'll generate a fixup and be
984 if (!CE) return true;
985 int64_t Value = CE->getValue();
986 return Value >= 0 && Value < 65536;
988 bool isImm24bit() 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 <= 0xffffff;
995 bool isImmThumbSR() 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 < 33;
1002 bool isPKHLSLImm() 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 isPKHASRImm() const {
1010 if (!isImm()) return false;
1011 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1012 if (!CE) return false;
1013 int64_t Value = CE->getValue();
1014 return Value > 0 && Value <= 32;
1016 bool isAdrLabel() const {
1017 // If we have an immediate that's not a constant, treat it as a label
1018 // reference needing a fixup. If it is a constant, but it can't fit
1019 // into shift immediate encoding, we reject it.
1020 if (isImm() && !isa<MCConstantExpr>(getImm())) return true;
1021 else return (isARMSOImm() || isARMSOImmNeg());
1023 bool isARMSOImm() 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 isARMSOImmNot() 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 return ARM_AM::getSOImmVal(~Value) != -1;
1037 bool isARMSOImmNeg() const {
1038 if (!isImm()) return false;
1039 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1040 if (!CE) return false;
1041 int64_t Value = CE->getValue();
1042 // Only use this when not representable as a plain so_imm.
1043 return ARM_AM::getSOImmVal(Value) == -1 &&
1044 ARM_AM::getSOImmVal(-Value) != -1;
1046 bool isT2SOImm() 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;
1053 bool isT2SOImmNot() const {
1054 if (!isImm()) return false;
1055 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1056 if (!CE) return false;
1057 int64_t Value = CE->getValue();
1058 return ARM_AM::getT2SOImmVal(Value) == -1 &&
1059 ARM_AM::getT2SOImmVal(~Value) != -1;
1061 bool isT2SOImmNeg() const {
1062 if (!isImm()) return false;
1063 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1064 if (!CE) return false;
1065 int64_t Value = CE->getValue();
1066 // Only use this when not representable as a plain so_imm.
1067 return ARM_AM::getT2SOImmVal(Value) == -1 &&
1068 ARM_AM::getT2SOImmVal(-Value) != -1;
1070 bool isSetEndImm() const {
1071 if (!isImm()) return false;
1072 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1073 if (!CE) return false;
1074 int64_t Value = CE->getValue();
1075 return Value == 1 || Value == 0;
1077 bool isReg() const override { return Kind == k_Register; }
1078 bool isRegList() const { return Kind == k_RegisterList; }
1079 bool isDPRRegList() const { return Kind == k_DPRRegisterList; }
1080 bool isSPRRegList() const { return Kind == k_SPRRegisterList; }
1081 bool isToken() const override { return Kind == k_Token; }
1082 bool isMemBarrierOpt() const { return Kind == k_MemBarrierOpt; }
1083 bool isInstSyncBarrierOpt() const { return Kind == k_InstSyncBarrierOpt; }
1084 bool isMem() const override { return Kind == k_Memory; }
1085 bool isShifterImm() const { return Kind == k_ShifterImmediate; }
1086 bool isRegShiftedReg() const { return Kind == k_ShiftedRegister; }
1087 bool isRegShiftedImm() const { return Kind == k_ShiftedImmediate; }
1088 bool isRotImm() const { return Kind == k_RotateImmediate; }
1089 bool isBitfield() const { return Kind == k_BitfieldDescriptor; }
1090 bool isPostIdxRegShifted() const { return Kind == k_PostIndexRegister; }
1091 bool isPostIdxReg() const {
1092 return Kind == k_PostIndexRegister && PostIdxReg.ShiftTy ==ARM_AM::no_shift;
1094 bool isMemNoOffset(bool alignOK = false) const {
1097 // No offset of any kind.
1098 return Memory.OffsetRegNum == 0 && Memory.OffsetImm == 0 &&
1099 (alignOK || Memory.Alignment == 0);
1101 bool isMemPCRelImm12() const {
1102 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1104 // Base register must be PC.
1105 if (Memory.BaseRegNum != ARM::PC)
1107 // Immediate offset in range [-4095, 4095].
1108 if (!Memory.OffsetImm) return true;
1109 int64_t Val = Memory.OffsetImm->getValue();
1110 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
1112 bool isAlignedMemory() const {
1113 return isMemNoOffset(true);
1115 bool isAddrMode2() const {
1116 if (!isMem() || Memory.Alignment != 0) return false;
1117 // Check for register offset.
1118 if (Memory.OffsetRegNum) return true;
1119 // Immediate offset in range [-4095, 4095].
1120 if (!Memory.OffsetImm) return true;
1121 int64_t Val = Memory.OffsetImm->getValue();
1122 return Val > -4096 && Val < 4096;
1124 bool isAM2OffsetImm() const {
1125 if (!isImm()) return false;
1126 // Immediate offset in range [-4095, 4095].
1127 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1128 if (!CE) return false;
1129 int64_t Val = CE->getValue();
1130 return (Val == INT32_MIN) || (Val > -4096 && Val < 4096);
1132 bool isAddrMode3() const {
1133 // If we have an immediate that's not a constant, treat it as a label
1134 // reference needing a fixup. If it is a constant, it's something else
1135 // and we reject it.
1136 if (isImm() && !isa<MCConstantExpr>(getImm()))
1138 if (!isMem() || Memory.Alignment != 0) return false;
1139 // No shifts are legal for AM3.
1140 if (Memory.ShiftType != ARM_AM::no_shift) return false;
1141 // Check for register offset.
1142 if (Memory.OffsetRegNum) return true;
1143 // Immediate offset in range [-255, 255].
1144 if (!Memory.OffsetImm) return true;
1145 int64_t Val = Memory.OffsetImm->getValue();
1146 // The #-0 offset is encoded as INT32_MIN, and we have to check
1148 return (Val > -256 && Val < 256) || Val == INT32_MIN;
1150 bool isAM3Offset() const {
1151 if (Kind != k_Immediate && Kind != k_PostIndexRegister)
1153 if (Kind == k_PostIndexRegister)
1154 return PostIdxReg.ShiftTy == ARM_AM::no_shift;
1155 // Immediate offset in range [-255, 255].
1156 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1157 if (!CE) return false;
1158 int64_t Val = CE->getValue();
1159 // Special case, #-0 is INT32_MIN.
1160 return (Val > -256 && Val < 256) || Val == INT32_MIN;
1162 bool isAddrMode5() const {
1163 // If we have an immediate that's not a constant, treat it as a label
1164 // reference needing a fixup. If it is a constant, it's something else
1165 // and we reject it.
1166 if (isImm() && !isa<MCConstantExpr>(getImm()))
1168 if (!isMem() || Memory.Alignment != 0) return false;
1169 // Check for register offset.
1170 if (Memory.OffsetRegNum) return false;
1171 // Immediate offset in range [-1020, 1020] and a multiple of 4.
1172 if (!Memory.OffsetImm) return true;
1173 int64_t Val = Memory.OffsetImm->getValue();
1174 return (Val >= -1020 && Val <= 1020 && ((Val & 3) == 0)) ||
1177 bool isMemTBB() const {
1178 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1179 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
1183 bool isMemTBH() const {
1184 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1185 Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm != 1 ||
1186 Memory.Alignment != 0 )
1190 bool isMemRegOffset() const {
1191 if (!isMem() || !Memory.OffsetRegNum || Memory.Alignment != 0)
1195 bool isT2MemRegOffset() const {
1196 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1197 Memory.Alignment != 0)
1199 // Only lsl #{0, 1, 2, 3} allowed.
1200 if (Memory.ShiftType == ARM_AM::no_shift)
1202 if (Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm > 3)
1206 bool isMemThumbRR() const {
1207 // Thumb reg+reg addressing is simple. Just two registers, a base and
1208 // an offset. No shifts, negations or any other complicating factors.
1209 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1210 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
1212 return isARMLowRegister(Memory.BaseRegNum) &&
1213 (!Memory.OffsetRegNum || isARMLowRegister(Memory.OffsetRegNum));
1215 bool isMemThumbRIs4() const {
1216 if (!isMem() || Memory.OffsetRegNum != 0 ||
1217 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1219 // Immediate offset, multiple of 4 in range [0, 124].
1220 if (!Memory.OffsetImm) return true;
1221 int64_t Val = Memory.OffsetImm->getValue();
1222 return Val >= 0 && Val <= 124 && (Val % 4) == 0;
1224 bool isMemThumbRIs2() const {
1225 if (!isMem() || Memory.OffsetRegNum != 0 ||
1226 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1228 // Immediate offset, multiple of 4 in range [0, 62].
1229 if (!Memory.OffsetImm) return true;
1230 int64_t Val = Memory.OffsetImm->getValue();
1231 return Val >= 0 && Val <= 62 && (Val % 2) == 0;
1233 bool isMemThumbRIs1() const {
1234 if (!isMem() || Memory.OffsetRegNum != 0 ||
1235 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1237 // Immediate offset in range [0, 31].
1238 if (!Memory.OffsetImm) return true;
1239 int64_t Val = Memory.OffsetImm->getValue();
1240 return Val >= 0 && Val <= 31;
1242 bool isMemThumbSPI() const {
1243 if (!isMem() || Memory.OffsetRegNum != 0 ||
1244 Memory.BaseRegNum != ARM::SP || Memory.Alignment != 0)
1246 // Immediate offset, multiple of 4 in range [0, 1020].
1247 if (!Memory.OffsetImm) return true;
1248 int64_t Val = Memory.OffsetImm->getValue();
1249 return Val >= 0 && Val <= 1020 && (Val % 4) == 0;
1251 bool isMemImm8s4Offset() const {
1252 // If we have an immediate that's not a constant, treat it as a label
1253 // reference needing a fixup. If it is a constant, it's something else
1254 // and we reject it.
1255 if (isImm() && !isa<MCConstantExpr>(getImm()))
1257 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1259 // Immediate offset a multiple of 4 in range [-1020, 1020].
1260 if (!Memory.OffsetImm) return true;
1261 int64_t Val = Memory.OffsetImm->getValue();
1262 // Special case, #-0 is INT32_MIN.
1263 return (Val >= -1020 && Val <= 1020 && (Val & 3) == 0) || Val == INT32_MIN;
1265 bool isMemImm0_1020s4Offset() const {
1266 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1268 // Immediate offset a multiple of 4 in range [0, 1020].
1269 if (!Memory.OffsetImm) return true;
1270 int64_t Val = Memory.OffsetImm->getValue();
1271 return Val >= 0 && Val <= 1020 && (Val & 3) == 0;
1273 bool isMemImm8Offset() const {
1274 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1276 // Base reg of PC isn't allowed for these encodings.
1277 if (Memory.BaseRegNum == ARM::PC) return false;
1278 // Immediate offset in range [-255, 255].
1279 if (!Memory.OffsetImm) return true;
1280 int64_t Val = Memory.OffsetImm->getValue();
1281 return (Val == INT32_MIN) || (Val > -256 && Val < 256);
1283 bool isMemPosImm8Offset() const {
1284 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1286 // Immediate offset in range [0, 255].
1287 if (!Memory.OffsetImm) return true;
1288 int64_t Val = Memory.OffsetImm->getValue();
1289 return Val >= 0 && Val < 256;
1291 bool isMemNegImm8Offset() const {
1292 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1294 // Base reg of PC isn't allowed for these encodings.
1295 if (Memory.BaseRegNum == ARM::PC) return false;
1296 // Immediate offset in range [-255, -1].
1297 if (!Memory.OffsetImm) return false;
1298 int64_t Val = Memory.OffsetImm->getValue();
1299 return (Val == INT32_MIN) || (Val > -256 && Val < 0);
1301 bool isMemUImm12Offset() const {
1302 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1304 // Immediate offset in range [0, 4095].
1305 if (!Memory.OffsetImm) return true;
1306 int64_t Val = Memory.OffsetImm->getValue();
1307 return (Val >= 0 && Val < 4096);
1309 bool isMemImm12Offset() const {
1310 // If we have an immediate that's not a constant, treat it as a label
1311 // reference needing a fixup. If it is a constant, it's something else
1312 // and we reject it.
1313 if (isImm() && !isa<MCConstantExpr>(getImm()))
1316 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1318 // Immediate offset in range [-4095, 4095].
1319 if (!Memory.OffsetImm) return true;
1320 int64_t Val = Memory.OffsetImm->getValue();
1321 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
1323 bool isPostIdxImm8() 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 > -256 && Val < 256) || (Val == INT32_MIN);
1330 bool isPostIdxImm8s4() const {
1331 if (!isImm()) return false;
1332 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1333 if (!CE) return false;
1334 int64_t Val = CE->getValue();
1335 return ((Val & 3) == 0 && Val >= -1020 && Val <= 1020) ||
1339 bool isMSRMask() const { return Kind == k_MSRMask; }
1340 bool isProcIFlags() const { return Kind == k_ProcIFlags; }
1343 bool isSingleSpacedVectorList() const {
1344 return Kind == k_VectorList && !VectorList.isDoubleSpaced;
1346 bool isDoubleSpacedVectorList() const {
1347 return Kind == k_VectorList && VectorList.isDoubleSpaced;
1349 bool isVecListOneD() const {
1350 if (!isSingleSpacedVectorList()) return false;
1351 return VectorList.Count == 1;
1354 bool isVecListDPair() const {
1355 if (!isSingleSpacedVectorList()) return false;
1356 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1357 .contains(VectorList.RegNum));
1360 bool isVecListThreeD() const {
1361 if (!isSingleSpacedVectorList()) return false;
1362 return VectorList.Count == 3;
1365 bool isVecListFourD() const {
1366 if (!isSingleSpacedVectorList()) return false;
1367 return VectorList.Count == 4;
1370 bool isVecListDPairSpaced() const {
1371 if (isSingleSpacedVectorList()) return false;
1372 return (ARMMCRegisterClasses[ARM::DPairSpcRegClassID]
1373 .contains(VectorList.RegNum));
1376 bool isVecListThreeQ() const {
1377 if (!isDoubleSpacedVectorList()) return false;
1378 return VectorList.Count == 3;
1381 bool isVecListFourQ() const {
1382 if (!isDoubleSpacedVectorList()) return false;
1383 return VectorList.Count == 4;
1386 bool isSingleSpacedVectorAllLanes() const {
1387 return Kind == k_VectorListAllLanes && !VectorList.isDoubleSpaced;
1389 bool isDoubleSpacedVectorAllLanes() const {
1390 return Kind == k_VectorListAllLanes && VectorList.isDoubleSpaced;
1392 bool isVecListOneDAllLanes() const {
1393 if (!isSingleSpacedVectorAllLanes()) return false;
1394 return VectorList.Count == 1;
1397 bool isVecListDPairAllLanes() const {
1398 if (!isSingleSpacedVectorAllLanes()) return false;
1399 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1400 .contains(VectorList.RegNum));
1403 bool isVecListDPairSpacedAllLanes() const {
1404 if (!isDoubleSpacedVectorAllLanes()) return false;
1405 return VectorList.Count == 2;
1408 bool isVecListThreeDAllLanes() const {
1409 if (!isSingleSpacedVectorAllLanes()) return false;
1410 return VectorList.Count == 3;
1413 bool isVecListThreeQAllLanes() const {
1414 if (!isDoubleSpacedVectorAllLanes()) return false;
1415 return VectorList.Count == 3;
1418 bool isVecListFourDAllLanes() const {
1419 if (!isSingleSpacedVectorAllLanes()) return false;
1420 return VectorList.Count == 4;
1423 bool isVecListFourQAllLanes() const {
1424 if (!isDoubleSpacedVectorAllLanes()) return false;
1425 return VectorList.Count == 4;
1428 bool isSingleSpacedVectorIndexed() const {
1429 return Kind == k_VectorListIndexed && !VectorList.isDoubleSpaced;
1431 bool isDoubleSpacedVectorIndexed() const {
1432 return Kind == k_VectorListIndexed && VectorList.isDoubleSpaced;
1434 bool isVecListOneDByteIndexed() const {
1435 if (!isSingleSpacedVectorIndexed()) return false;
1436 return VectorList.Count == 1 && VectorList.LaneIndex <= 7;
1439 bool isVecListOneDHWordIndexed() const {
1440 if (!isSingleSpacedVectorIndexed()) return false;
1441 return VectorList.Count == 1 && VectorList.LaneIndex <= 3;
1444 bool isVecListOneDWordIndexed() const {
1445 if (!isSingleSpacedVectorIndexed()) return false;
1446 return VectorList.Count == 1 && VectorList.LaneIndex <= 1;
1449 bool isVecListTwoDByteIndexed() const {
1450 if (!isSingleSpacedVectorIndexed()) return false;
1451 return VectorList.Count == 2 && VectorList.LaneIndex <= 7;
1454 bool isVecListTwoDHWordIndexed() const {
1455 if (!isSingleSpacedVectorIndexed()) return false;
1456 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1459 bool isVecListTwoQWordIndexed() const {
1460 if (!isDoubleSpacedVectorIndexed()) return false;
1461 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1464 bool isVecListTwoQHWordIndexed() const {
1465 if (!isDoubleSpacedVectorIndexed()) return false;
1466 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1469 bool isVecListTwoDWordIndexed() const {
1470 if (!isSingleSpacedVectorIndexed()) return false;
1471 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1474 bool isVecListThreeDByteIndexed() const {
1475 if (!isSingleSpacedVectorIndexed()) return false;
1476 return VectorList.Count == 3 && VectorList.LaneIndex <= 7;
1479 bool isVecListThreeDHWordIndexed() const {
1480 if (!isSingleSpacedVectorIndexed()) return false;
1481 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1484 bool isVecListThreeQWordIndexed() const {
1485 if (!isDoubleSpacedVectorIndexed()) return false;
1486 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1489 bool isVecListThreeQHWordIndexed() const {
1490 if (!isDoubleSpacedVectorIndexed()) return false;
1491 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1494 bool isVecListThreeDWordIndexed() const {
1495 if (!isSingleSpacedVectorIndexed()) return false;
1496 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1499 bool isVecListFourDByteIndexed() const {
1500 if (!isSingleSpacedVectorIndexed()) return false;
1501 return VectorList.Count == 4 && VectorList.LaneIndex <= 7;
1504 bool isVecListFourDHWordIndexed() const {
1505 if (!isSingleSpacedVectorIndexed()) return false;
1506 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1509 bool isVecListFourQWordIndexed() const {
1510 if (!isDoubleSpacedVectorIndexed()) return false;
1511 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1514 bool isVecListFourQHWordIndexed() const {
1515 if (!isDoubleSpacedVectorIndexed()) return false;
1516 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1519 bool isVecListFourDWordIndexed() const {
1520 if (!isSingleSpacedVectorIndexed()) return false;
1521 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1524 bool isVectorIndex8() const {
1525 if (Kind != k_VectorIndex) return false;
1526 return VectorIndex.Val < 8;
1528 bool isVectorIndex16() const {
1529 if (Kind != k_VectorIndex) return false;
1530 return VectorIndex.Val < 4;
1532 bool isVectorIndex32() const {
1533 if (Kind != k_VectorIndex) return false;
1534 return VectorIndex.Val < 2;
1537 bool isNEONi8splat() const {
1538 if (!isImm()) return false;
1539 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1540 // Must be a constant.
1541 if (!CE) return false;
1542 int64_t Value = CE->getValue();
1543 // i8 value splatted across 8 bytes. The immediate is just the 8 byte
1545 return Value >= 0 && Value < 256;
1548 bool isNEONi16splat() const {
1549 if (!isImm()) return false;
1550 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1551 // Must be a constant.
1552 if (!CE) return false;
1553 int64_t Value = CE->getValue();
1554 // i16 value in the range [0,255] or [0x0100, 0xff00]
1555 return (Value >= 0 && Value < 256) || (Value >= 0x0100 && Value <= 0xff00);
1558 bool isNEONi32splat() const {
1559 if (!isImm()) return false;
1560 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1561 // Must be a constant.
1562 if (!CE) return false;
1563 int64_t Value = CE->getValue();
1564 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X.
1565 return (Value >= 0 && Value < 256) ||
1566 (Value >= 0x0100 && Value <= 0xff00) ||
1567 (Value >= 0x010000 && Value <= 0xff0000) ||
1568 (Value >= 0x01000000 && Value <= 0xff000000);
1571 bool isNEONi32vmov() const {
1572 if (!isImm()) return false;
1573 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1574 // Must be a constant.
1575 if (!CE) return false;
1576 int64_t Value = CE->getValue();
1577 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1578 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1579 return (Value >= 0 && Value < 256) ||
1580 (Value >= 0x0100 && Value <= 0xff00) ||
1581 (Value >= 0x010000 && Value <= 0xff0000) ||
1582 (Value >= 0x01000000 && Value <= 0xff000000) ||
1583 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1584 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1586 bool isNEONi32vmovNeg() const {
1587 if (!isImm()) return false;
1588 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1589 // Must be a constant.
1590 if (!CE) return false;
1591 int64_t Value = ~CE->getValue();
1592 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1593 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1594 return (Value >= 0 && Value < 256) ||
1595 (Value >= 0x0100 && Value <= 0xff00) ||
1596 (Value >= 0x010000 && Value <= 0xff0000) ||
1597 (Value >= 0x01000000 && Value <= 0xff000000) ||
1598 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1599 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1602 bool isNEONi64splat() const {
1603 if (!isImm()) return false;
1604 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1605 // Must be a constant.
1606 if (!CE) return false;
1607 uint64_t Value = CE->getValue();
1608 // i64 value with each byte being either 0 or 0xff.
1609 for (unsigned i = 0; i < 8; ++i)
1610 if ((Value & 0xff) != 0 && (Value & 0xff) != 0xff) return false;
1614 void addExpr(MCInst &Inst, const MCExpr *Expr) const {
1615 // Add as immediates when possible. Null MCExpr = 0.
1617 Inst.addOperand(MCOperand::CreateImm(0));
1618 else if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr))
1619 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1621 Inst.addOperand(MCOperand::CreateExpr(Expr));
1624 void addCondCodeOperands(MCInst &Inst, unsigned N) const {
1625 assert(N == 2 && "Invalid number of operands!");
1626 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1627 unsigned RegNum = getCondCode() == ARMCC::AL ? 0: ARM::CPSR;
1628 Inst.addOperand(MCOperand::CreateReg(RegNum));
1631 void addCoprocNumOperands(MCInst &Inst, unsigned N) const {
1632 assert(N == 1 && "Invalid number of operands!");
1633 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1636 void addCoprocRegOperands(MCInst &Inst, unsigned N) const {
1637 assert(N == 1 && "Invalid number of operands!");
1638 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1641 void addCoprocOptionOperands(MCInst &Inst, unsigned N) const {
1642 assert(N == 1 && "Invalid number of operands!");
1643 Inst.addOperand(MCOperand::CreateImm(CoprocOption.Val));
1646 void addITMaskOperands(MCInst &Inst, unsigned N) const {
1647 assert(N == 1 && "Invalid number of operands!");
1648 Inst.addOperand(MCOperand::CreateImm(ITMask.Mask));
1651 void addITCondCodeOperands(MCInst &Inst, unsigned N) const {
1652 assert(N == 1 && "Invalid number of operands!");
1653 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1656 void addCCOutOperands(MCInst &Inst, unsigned N) const {
1657 assert(N == 1 && "Invalid number of operands!");
1658 Inst.addOperand(MCOperand::CreateReg(getReg()));
1661 void addRegOperands(MCInst &Inst, unsigned N) const {
1662 assert(N == 1 && "Invalid number of operands!");
1663 Inst.addOperand(MCOperand::CreateReg(getReg()));
1666 void addRegShiftedRegOperands(MCInst &Inst, unsigned N) const {
1667 assert(N == 3 && "Invalid number of operands!");
1668 assert(isRegShiftedReg() &&
1669 "addRegShiftedRegOperands() on non-RegShiftedReg!");
1670 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.SrcReg));
1671 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.ShiftReg));
1672 Inst.addOperand(MCOperand::CreateImm(
1673 ARM_AM::getSORegOpc(RegShiftedReg.ShiftTy, RegShiftedReg.ShiftImm)));
1676 void addRegShiftedImmOperands(MCInst &Inst, unsigned N) const {
1677 assert(N == 2 && "Invalid number of operands!");
1678 assert(isRegShiftedImm() &&
1679 "addRegShiftedImmOperands() on non-RegShiftedImm!");
1680 Inst.addOperand(MCOperand::CreateReg(RegShiftedImm.SrcReg));
1681 // Shift of #32 is encoded as 0 where permitted
1682 unsigned Imm = (RegShiftedImm.ShiftImm == 32 ? 0 : RegShiftedImm.ShiftImm);
1683 Inst.addOperand(MCOperand::CreateImm(
1684 ARM_AM::getSORegOpc(RegShiftedImm.ShiftTy, Imm)));
1687 void addShifterImmOperands(MCInst &Inst, unsigned N) const {
1688 assert(N == 1 && "Invalid number of operands!");
1689 Inst.addOperand(MCOperand::CreateImm((ShifterImm.isASR << 5) |
1693 void addRegListOperands(MCInst &Inst, unsigned N) const {
1694 assert(N == 1 && "Invalid number of operands!");
1695 const SmallVectorImpl<unsigned> &RegList = getRegList();
1696 for (SmallVectorImpl<unsigned>::const_iterator
1697 I = RegList.begin(), E = RegList.end(); I != E; ++I)
1698 Inst.addOperand(MCOperand::CreateReg(*I));
1701 void addDPRRegListOperands(MCInst &Inst, unsigned N) const {
1702 addRegListOperands(Inst, N);
1705 void addSPRRegListOperands(MCInst &Inst, unsigned N) const {
1706 addRegListOperands(Inst, N);
1709 void addRotImmOperands(MCInst &Inst, unsigned N) const {
1710 assert(N == 1 && "Invalid number of operands!");
1711 // Encoded as val>>3. The printer handles display as 8, 16, 24.
1712 Inst.addOperand(MCOperand::CreateImm(RotImm.Imm >> 3));
1715 void addBitfieldOperands(MCInst &Inst, unsigned N) const {
1716 assert(N == 1 && "Invalid number of operands!");
1717 // Munge the lsb/width into a bitfield mask.
1718 unsigned lsb = Bitfield.LSB;
1719 unsigned width = Bitfield.Width;
1720 // Make a 32-bit mask w/ the referenced bits clear and all other bits set.
1721 uint32_t Mask = ~(((uint32_t)0xffffffff >> lsb) << (32 - width) >>
1722 (32 - (lsb + width)));
1723 Inst.addOperand(MCOperand::CreateImm(Mask));
1726 void addImmOperands(MCInst &Inst, unsigned N) const {
1727 assert(N == 1 && "Invalid number of operands!");
1728 addExpr(Inst, getImm());
1731 void addFBits16Operands(MCInst &Inst, unsigned N) const {
1732 assert(N == 1 && "Invalid number of operands!");
1733 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1734 Inst.addOperand(MCOperand::CreateImm(16 - CE->getValue()));
1737 void addFBits32Operands(MCInst &Inst, unsigned N) const {
1738 assert(N == 1 && "Invalid number of operands!");
1739 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1740 Inst.addOperand(MCOperand::CreateImm(32 - CE->getValue()));
1743 void addFPImmOperands(MCInst &Inst, unsigned N) const {
1744 assert(N == 1 && "Invalid number of operands!");
1745 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1746 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
1747 Inst.addOperand(MCOperand::CreateImm(Val));
1750 void addImm8s4Operands(MCInst &Inst, unsigned N) const {
1751 assert(N == 1 && "Invalid number of operands!");
1752 // FIXME: We really want to scale the value here, but the LDRD/STRD
1753 // instruction don't encode operands that way yet.
1754 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1755 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1758 void addImm0_1020s4Operands(MCInst &Inst, unsigned N) const {
1759 assert(N == 1 && "Invalid number of operands!");
1760 // The immediate is scaled by four in the encoding and is stored
1761 // in the MCInst as such. Lop off the low two bits here.
1762 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1763 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1766 void addImm0_508s4NegOperands(MCInst &Inst, unsigned N) const {
1767 assert(N == 1 && "Invalid number of operands!");
1768 // The immediate is scaled by four in the encoding and is stored
1769 // in the MCInst as such. Lop off the low two bits here.
1770 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1771 Inst.addOperand(MCOperand::CreateImm(-(CE->getValue() / 4)));
1774 void addImm0_508s4Operands(MCInst &Inst, unsigned N) const {
1775 assert(N == 1 && "Invalid number of operands!");
1776 // The immediate is scaled by four in the encoding and is stored
1777 // in the MCInst as such. Lop off the low two bits here.
1778 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1779 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1782 void addImm1_16Operands(MCInst &Inst, unsigned N) const {
1783 assert(N == 1 && "Invalid number of operands!");
1784 // The constant encodes as the immediate-1, and we store in the instruction
1785 // the bits as encoded, so subtract off one here.
1786 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1787 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1790 void addImm1_32Operands(MCInst &Inst, unsigned N) const {
1791 assert(N == 1 && "Invalid number of operands!");
1792 // The constant encodes as the immediate-1, and we store in the instruction
1793 // the bits as encoded, so subtract off one here.
1794 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1795 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1798 void addImmThumbSROperands(MCInst &Inst, unsigned N) const {
1799 assert(N == 1 && "Invalid number of operands!");
1800 // The constant encodes as the immediate, except for 32, which encodes as
1802 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1803 unsigned Imm = CE->getValue();
1804 Inst.addOperand(MCOperand::CreateImm((Imm == 32 ? 0 : Imm)));
1807 void addPKHASRImmOperands(MCInst &Inst, unsigned N) const {
1808 assert(N == 1 && "Invalid number of operands!");
1809 // An ASR value of 32 encodes as 0, so that's how we want to add it to
1810 // the instruction as well.
1811 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1812 int Val = CE->getValue();
1813 Inst.addOperand(MCOperand::CreateImm(Val == 32 ? 0 : Val));
1816 void addT2SOImmNotOperands(MCInst &Inst, unsigned N) const {
1817 assert(N == 1 && "Invalid number of operands!");
1818 // The operand is actually a t2_so_imm, but we have its bitwise
1819 // negation in the assembly source, so twiddle it here.
1820 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1821 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1824 void addT2SOImmNegOperands(MCInst &Inst, unsigned N) const {
1825 assert(N == 1 && "Invalid number of operands!");
1826 // The operand is actually a t2_so_imm, but we have its
1827 // negation in the assembly source, so twiddle it here.
1828 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1829 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1832 void addImm0_4095NegOperands(MCInst &Inst, unsigned N) const {
1833 assert(N == 1 && "Invalid number of operands!");
1834 // The operand is actually an imm0_4095, but we have its
1835 // negation in the assembly source, so twiddle it here.
1836 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1837 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1840 void addUnsignedOffset_b8s2Operands(MCInst &Inst, unsigned N) const {
1841 if(const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm())) {
1842 Inst.addOperand(MCOperand::CreateImm(CE->getValue() >> 2));
1846 const MCSymbolRefExpr *SR = dyn_cast<MCSymbolRefExpr>(Imm.Val);
1847 assert(SR && "Unknown value type!");
1848 Inst.addOperand(MCOperand::CreateExpr(SR));
1851 void addThumbMemPCOperands(MCInst &Inst, unsigned N) const {
1852 assert(N == 1 && "Invalid number of operands!");
1854 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1856 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1860 const MCSymbolRefExpr *SR = dyn_cast<MCSymbolRefExpr>(Imm.Val);
1861 assert(SR && "Unknown value type!");
1862 Inst.addOperand(MCOperand::CreateExpr(SR));
1866 assert(isMem() && "Unknown value type!");
1867 assert(isa<MCConstantExpr>(Memory.OffsetImm) && "Unknown value type!");
1868 Inst.addOperand(MCOperand::CreateImm(Memory.OffsetImm->getValue()));
1871 void addARMSOImmNotOperands(MCInst &Inst, unsigned N) const {
1872 assert(N == 1 && "Invalid number of operands!");
1873 // The operand is actually a so_imm, but we have its bitwise
1874 // negation in the assembly source, so twiddle it here.
1875 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1876 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1879 void addARMSOImmNegOperands(MCInst &Inst, unsigned N) const {
1880 assert(N == 1 && "Invalid number of operands!");
1881 // The operand is actually a so_imm, but we have its
1882 // negation in the assembly source, so twiddle it here.
1883 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1884 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1887 void addMemBarrierOptOperands(MCInst &Inst, unsigned N) const {
1888 assert(N == 1 && "Invalid number of operands!");
1889 Inst.addOperand(MCOperand::CreateImm(unsigned(getMemBarrierOpt())));
1892 void addInstSyncBarrierOptOperands(MCInst &Inst, unsigned N) const {
1893 assert(N == 1 && "Invalid number of operands!");
1894 Inst.addOperand(MCOperand::CreateImm(unsigned(getInstSyncBarrierOpt())));
1897 void addMemNoOffsetOperands(MCInst &Inst, unsigned N) const {
1898 assert(N == 1 && "Invalid number of operands!");
1899 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1902 void addMemPCRelImm12Operands(MCInst &Inst, unsigned N) const {
1903 assert(N == 1 && "Invalid number of operands!");
1904 int32_t Imm = Memory.OffsetImm->getValue();
1905 Inst.addOperand(MCOperand::CreateImm(Imm));
1908 void addAdrLabelOperands(MCInst &Inst, unsigned N) const {
1909 assert(N == 1 && "Invalid number of operands!");
1910 assert(isImm() && "Not an immediate!");
1912 // If we have an immediate that's not a constant, treat it as a label
1913 // reference needing a fixup.
1914 if (!isa<MCConstantExpr>(getImm())) {
1915 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1919 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1920 int Val = CE->getValue();
1921 Inst.addOperand(MCOperand::CreateImm(Val));
1924 void addAlignedMemoryOperands(MCInst &Inst, unsigned N) const {
1925 assert(N == 2 && "Invalid number of operands!");
1926 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1927 Inst.addOperand(MCOperand::CreateImm(Memory.Alignment));
1930 void addAddrMode2Operands(MCInst &Inst, unsigned N) const {
1931 assert(N == 3 && "Invalid number of operands!");
1932 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1933 if (!Memory.OffsetRegNum) {
1934 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1935 // Special case for #-0
1936 if (Val == INT32_MIN) Val = 0;
1937 if (Val < 0) Val = -Val;
1938 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
1940 // For register offset, we encode the shift type and negation flag
1942 Val = ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
1943 Memory.ShiftImm, Memory.ShiftType);
1945 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1946 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1947 Inst.addOperand(MCOperand::CreateImm(Val));
1950 void addAM2OffsetImmOperands(MCInst &Inst, unsigned N) const {
1951 assert(N == 2 && "Invalid number of operands!");
1952 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1953 assert(CE && "non-constant AM2OffsetImm operand!");
1954 int32_t Val = CE->getValue();
1955 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1956 // Special case for #-0
1957 if (Val == INT32_MIN) Val = 0;
1958 if (Val < 0) Val = -Val;
1959 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
1960 Inst.addOperand(MCOperand::CreateReg(0));
1961 Inst.addOperand(MCOperand::CreateImm(Val));
1964 void addAddrMode3Operands(MCInst &Inst, unsigned N) const {
1965 assert(N == 3 && "Invalid number of operands!");
1966 // If we have an immediate that's not a constant, treat it as a label
1967 // reference needing a fixup. If it is a constant, it's something else
1968 // and we reject it.
1970 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1971 Inst.addOperand(MCOperand::CreateReg(0));
1972 Inst.addOperand(MCOperand::CreateImm(0));
1976 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1977 if (!Memory.OffsetRegNum) {
1978 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1979 // Special case for #-0
1980 if (Val == INT32_MIN) Val = 0;
1981 if (Val < 0) Val = -Val;
1982 Val = ARM_AM::getAM3Opc(AddSub, Val);
1984 // For register offset, we encode the shift type and negation flag
1986 Val = ARM_AM::getAM3Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add, 0);
1988 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1989 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1990 Inst.addOperand(MCOperand::CreateImm(Val));
1993 void addAM3OffsetOperands(MCInst &Inst, unsigned N) const {
1994 assert(N == 2 && "Invalid number of operands!");
1995 if (Kind == k_PostIndexRegister) {
1997 ARM_AM::getAM3Opc(PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub, 0);
1998 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
1999 Inst.addOperand(MCOperand::CreateImm(Val));
2004 const MCConstantExpr *CE = static_cast<const MCConstantExpr*>(getImm());
2005 int32_t Val = CE->getValue();
2006 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2007 // Special case for #-0
2008 if (Val == INT32_MIN) Val = 0;
2009 if (Val < 0) Val = -Val;
2010 Val = ARM_AM::getAM3Opc(AddSub, Val);
2011 Inst.addOperand(MCOperand::CreateReg(0));
2012 Inst.addOperand(MCOperand::CreateImm(Val));
2015 void addAddrMode5Operands(MCInst &Inst, unsigned N) const {
2016 assert(N == 2 && "Invalid number of operands!");
2017 // If we have an immediate that's not a constant, treat it as a label
2018 // reference needing a fixup. If it is a constant, it's something else
2019 // and we reject it.
2021 Inst.addOperand(MCOperand::CreateExpr(getImm()));
2022 Inst.addOperand(MCOperand::CreateImm(0));
2026 // The lower two bits are always zero and as such are not encoded.
2027 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
2028 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
2029 // Special case for #-0
2030 if (Val == INT32_MIN) Val = 0;
2031 if (Val < 0) Val = -Val;
2032 Val = ARM_AM::getAM5Opc(AddSub, Val);
2033 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2034 Inst.addOperand(MCOperand::CreateImm(Val));
2037 void addMemImm8s4OffsetOperands(MCInst &Inst, unsigned N) const {
2038 assert(N == 2 && "Invalid number of operands!");
2039 // If we have an immediate that's not a constant, treat it as a label
2040 // reference needing a fixup. If it is a constant, it's something else
2041 // and we reject it.
2043 Inst.addOperand(MCOperand::CreateExpr(getImm()));
2044 Inst.addOperand(MCOperand::CreateImm(0));
2048 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2049 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2050 Inst.addOperand(MCOperand::CreateImm(Val));
2053 void addMemImm0_1020s4OffsetOperands(MCInst &Inst, unsigned N) const {
2054 assert(N == 2 && "Invalid number of operands!");
2055 // The lower two bits are always zero and as such are not encoded.
2056 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
2057 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2058 Inst.addOperand(MCOperand::CreateImm(Val));
2061 void addMemImm8OffsetOperands(MCInst &Inst, unsigned N) const {
2062 assert(N == 2 && "Invalid number of operands!");
2063 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2064 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2065 Inst.addOperand(MCOperand::CreateImm(Val));
2068 void addMemPosImm8OffsetOperands(MCInst &Inst, unsigned N) const {
2069 addMemImm8OffsetOperands(Inst, N);
2072 void addMemNegImm8OffsetOperands(MCInst &Inst, unsigned N) const {
2073 addMemImm8OffsetOperands(Inst, N);
2076 void addMemUImm12OffsetOperands(MCInst &Inst, unsigned N) const {
2077 assert(N == 2 && "Invalid number of operands!");
2078 // If this is an immediate, it's a label reference.
2080 addExpr(Inst, getImm());
2081 Inst.addOperand(MCOperand::CreateImm(0));
2085 // Otherwise, it's a normal memory reg+offset.
2086 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2087 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2088 Inst.addOperand(MCOperand::CreateImm(Val));
2091 void addMemImm12OffsetOperands(MCInst &Inst, unsigned N) const {
2092 assert(N == 2 && "Invalid number of operands!");
2093 // If this is an immediate, it's a label reference.
2095 addExpr(Inst, getImm());
2096 Inst.addOperand(MCOperand::CreateImm(0));
2100 // Otherwise, it's a normal memory reg+offset.
2101 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
2102 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2103 Inst.addOperand(MCOperand::CreateImm(Val));
2106 void addMemTBBOperands(MCInst &Inst, unsigned N) const {
2107 assert(N == 2 && "Invalid number of operands!");
2108 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2109 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2112 void addMemTBHOperands(MCInst &Inst, unsigned N) const {
2113 assert(N == 2 && "Invalid number of operands!");
2114 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2115 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2118 void addMemRegOffsetOperands(MCInst &Inst, unsigned N) const {
2119 assert(N == 3 && "Invalid number of operands!");
2121 ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
2122 Memory.ShiftImm, Memory.ShiftType);
2123 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2124 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2125 Inst.addOperand(MCOperand::CreateImm(Val));
2128 void addT2MemRegOffsetOperands(MCInst &Inst, unsigned N) const {
2129 assert(N == 3 && "Invalid number of operands!");
2130 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2131 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2132 Inst.addOperand(MCOperand::CreateImm(Memory.ShiftImm));
2135 void addMemThumbRROperands(MCInst &Inst, unsigned N) const {
2136 assert(N == 2 && "Invalid number of operands!");
2137 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2138 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
2141 void addMemThumbRIs4Operands(MCInst &Inst, unsigned N) const {
2142 assert(N == 2 && "Invalid number of operands!");
2143 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
2144 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2145 Inst.addOperand(MCOperand::CreateImm(Val));
2148 void addMemThumbRIs2Operands(MCInst &Inst, unsigned N) const {
2149 assert(N == 2 && "Invalid number of operands!");
2150 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 2) : 0;
2151 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2152 Inst.addOperand(MCOperand::CreateImm(Val));
2155 void addMemThumbRIs1Operands(MCInst &Inst, unsigned N) const {
2156 assert(N == 2 && "Invalid number of operands!");
2157 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue()) : 0;
2158 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2159 Inst.addOperand(MCOperand::CreateImm(Val));
2162 void addMemThumbSPIOperands(MCInst &Inst, unsigned N) const {
2163 assert(N == 2 && "Invalid number of operands!");
2164 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
2165 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2166 Inst.addOperand(MCOperand::CreateImm(Val));
2169 void addPostIdxImm8Operands(MCInst &Inst, unsigned N) const {
2170 assert(N == 1 && "Invalid number of operands!");
2171 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2172 assert(CE && "non-constant post-idx-imm8 operand!");
2173 int Imm = CE->getValue();
2174 bool isAdd = Imm >= 0;
2175 if (Imm == INT32_MIN) Imm = 0;
2176 Imm = (Imm < 0 ? -Imm : Imm) | (int)isAdd << 8;
2177 Inst.addOperand(MCOperand::CreateImm(Imm));
2180 void addPostIdxImm8s4Operands(MCInst &Inst, unsigned N) const {
2181 assert(N == 1 && "Invalid number of operands!");
2182 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2183 assert(CE && "non-constant post-idx-imm8s4 operand!");
2184 int Imm = CE->getValue();
2185 bool isAdd = Imm >= 0;
2186 if (Imm == INT32_MIN) Imm = 0;
2187 // Immediate is scaled by 4.
2188 Imm = ((Imm < 0 ? -Imm : Imm) / 4) | (int)isAdd << 8;
2189 Inst.addOperand(MCOperand::CreateImm(Imm));
2192 void addPostIdxRegOperands(MCInst &Inst, unsigned N) const {
2193 assert(N == 2 && "Invalid number of operands!");
2194 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
2195 Inst.addOperand(MCOperand::CreateImm(PostIdxReg.isAdd));
2198 void addPostIdxRegShiftedOperands(MCInst &Inst, unsigned N) const {
2199 assert(N == 2 && "Invalid number of operands!");
2200 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
2201 // The sign, shift type, and shift amount are encoded in a single operand
2202 // using the AM2 encoding helpers.
2203 ARM_AM::AddrOpc opc = PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub;
2204 unsigned Imm = ARM_AM::getAM2Opc(opc, PostIdxReg.ShiftImm,
2205 PostIdxReg.ShiftTy);
2206 Inst.addOperand(MCOperand::CreateImm(Imm));
2209 void addMSRMaskOperands(MCInst &Inst, unsigned N) const {
2210 assert(N == 1 && "Invalid number of operands!");
2211 Inst.addOperand(MCOperand::CreateImm(unsigned(getMSRMask())));
2214 void addProcIFlagsOperands(MCInst &Inst, unsigned N) const {
2215 assert(N == 1 && "Invalid number of operands!");
2216 Inst.addOperand(MCOperand::CreateImm(unsigned(getProcIFlags())));
2219 void addVecListOperands(MCInst &Inst, unsigned N) const {
2220 assert(N == 1 && "Invalid number of operands!");
2221 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
2224 void addVecListIndexedOperands(MCInst &Inst, unsigned N) const {
2225 assert(N == 2 && "Invalid number of operands!");
2226 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
2227 Inst.addOperand(MCOperand::CreateImm(VectorList.LaneIndex));
2230 void addVectorIndex8Operands(MCInst &Inst, unsigned N) const {
2231 assert(N == 1 && "Invalid number of operands!");
2232 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2235 void addVectorIndex16Operands(MCInst &Inst, unsigned N) const {
2236 assert(N == 1 && "Invalid number of operands!");
2237 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2240 void addVectorIndex32Operands(MCInst &Inst, unsigned N) const {
2241 assert(N == 1 && "Invalid number of operands!");
2242 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2245 void addNEONi8splatOperands(MCInst &Inst, unsigned N) const {
2246 assert(N == 1 && "Invalid number of operands!");
2247 // The immediate encodes the type of constant as well as the value.
2248 // Mask in that this is an i8 splat.
2249 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2250 Inst.addOperand(MCOperand::CreateImm(CE->getValue() | 0xe00));
2253 void addNEONi16splatOperands(MCInst &Inst, unsigned N) const {
2254 assert(N == 1 && "Invalid number of operands!");
2255 // The immediate encodes the type of constant as well as the value.
2256 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2257 unsigned Value = CE->getValue();
2259 Value = (Value >> 8) | 0xa00;
2262 Inst.addOperand(MCOperand::CreateImm(Value));
2265 void addNEONi32splatOperands(MCInst &Inst, unsigned N) const {
2266 assert(N == 1 && "Invalid number of operands!");
2267 // The immediate encodes the type of constant as well as the value.
2268 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2269 unsigned Value = CE->getValue();
2270 if (Value >= 256 && Value <= 0xff00)
2271 Value = (Value >> 8) | 0x200;
2272 else if (Value > 0xffff && Value <= 0xff0000)
2273 Value = (Value >> 16) | 0x400;
2274 else if (Value > 0xffffff)
2275 Value = (Value >> 24) | 0x600;
2276 Inst.addOperand(MCOperand::CreateImm(Value));
2279 void addNEONi32vmovOperands(MCInst &Inst, unsigned N) const {
2280 assert(N == 1 && "Invalid number of operands!");
2281 // The immediate encodes the type of constant as well as the value.
2282 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2283 unsigned Value = CE->getValue();
2284 if (Value >= 256 && Value <= 0xffff)
2285 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2286 else if (Value > 0xffff && Value <= 0xffffff)
2287 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2288 else if (Value > 0xffffff)
2289 Value = (Value >> 24) | 0x600;
2290 Inst.addOperand(MCOperand::CreateImm(Value));
2293 void addNEONi32vmovNegOperands(MCInst &Inst, unsigned N) const {
2294 assert(N == 1 && "Invalid number of operands!");
2295 // The immediate encodes the type of constant as well as the value.
2296 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2297 unsigned Value = ~CE->getValue();
2298 if (Value >= 256 && Value <= 0xffff)
2299 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2300 else if (Value > 0xffff && Value <= 0xffffff)
2301 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2302 else if (Value > 0xffffff)
2303 Value = (Value >> 24) | 0x600;
2304 Inst.addOperand(MCOperand::CreateImm(Value));
2307 void addNEONi64splatOperands(MCInst &Inst, unsigned N) const {
2308 assert(N == 1 && "Invalid number of operands!");
2309 // The immediate encodes the type of constant as well as the value.
2310 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2311 uint64_t Value = CE->getValue();
2313 for (unsigned i = 0; i < 8; ++i, Value >>= 8) {
2314 Imm |= (Value & 1) << i;
2316 Inst.addOperand(MCOperand::CreateImm(Imm | 0x1e00));
2319 void print(raw_ostream &OS) const override;
2321 static ARMOperand *CreateITMask(unsigned Mask, SMLoc S) {
2322 ARMOperand *Op = new ARMOperand(k_ITCondMask);
2323 Op->ITMask.Mask = Mask;
2329 static ARMOperand *CreateCondCode(ARMCC::CondCodes CC, SMLoc S) {
2330 ARMOperand *Op = new ARMOperand(k_CondCode);
2337 static ARMOperand *CreateCoprocNum(unsigned CopVal, SMLoc S) {
2338 ARMOperand *Op = new ARMOperand(k_CoprocNum);
2339 Op->Cop.Val = CopVal;
2345 static ARMOperand *CreateCoprocReg(unsigned CopVal, SMLoc S) {
2346 ARMOperand *Op = new ARMOperand(k_CoprocReg);
2347 Op->Cop.Val = CopVal;
2353 static ARMOperand *CreateCoprocOption(unsigned Val, SMLoc S, SMLoc E) {
2354 ARMOperand *Op = new ARMOperand(k_CoprocOption);
2361 static ARMOperand *CreateCCOut(unsigned RegNum, SMLoc S) {
2362 ARMOperand *Op = new ARMOperand(k_CCOut);
2363 Op->Reg.RegNum = RegNum;
2369 static ARMOperand *CreateToken(StringRef Str, SMLoc S) {
2370 ARMOperand *Op = new ARMOperand(k_Token);
2371 Op->Tok.Data = Str.data();
2372 Op->Tok.Length = Str.size();
2378 static ARMOperand *CreateReg(unsigned RegNum, SMLoc S, SMLoc E) {
2379 ARMOperand *Op = new ARMOperand(k_Register);
2380 Op->Reg.RegNum = RegNum;
2386 static ARMOperand *CreateShiftedRegister(ARM_AM::ShiftOpc ShTy,
2391 ARMOperand *Op = new ARMOperand(k_ShiftedRegister);
2392 Op->RegShiftedReg.ShiftTy = ShTy;
2393 Op->RegShiftedReg.SrcReg = SrcReg;
2394 Op->RegShiftedReg.ShiftReg = ShiftReg;
2395 Op->RegShiftedReg.ShiftImm = ShiftImm;
2401 static ARMOperand *CreateShiftedImmediate(ARM_AM::ShiftOpc ShTy,
2405 ARMOperand *Op = new ARMOperand(k_ShiftedImmediate);
2406 Op->RegShiftedImm.ShiftTy = ShTy;
2407 Op->RegShiftedImm.SrcReg = SrcReg;
2408 Op->RegShiftedImm.ShiftImm = ShiftImm;
2414 static ARMOperand *CreateShifterImm(bool isASR, unsigned Imm,
2416 ARMOperand *Op = new ARMOperand(k_ShifterImmediate);
2417 Op->ShifterImm.isASR = isASR;
2418 Op->ShifterImm.Imm = Imm;
2424 static ARMOperand *CreateRotImm(unsigned Imm, SMLoc S, SMLoc E) {
2425 ARMOperand *Op = new ARMOperand(k_RotateImmediate);
2426 Op->RotImm.Imm = Imm;
2432 static ARMOperand *CreateBitfield(unsigned LSB, unsigned Width,
2434 ARMOperand *Op = new ARMOperand(k_BitfieldDescriptor);
2435 Op->Bitfield.LSB = LSB;
2436 Op->Bitfield.Width = Width;
2443 CreateRegList(SmallVectorImpl<std::pair<unsigned, unsigned> > &Regs,
2444 SMLoc StartLoc, SMLoc EndLoc) {
2445 assert (Regs.size() > 0 && "RegList contains no registers?");
2446 KindTy Kind = k_RegisterList;
2448 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Regs.front().second))
2449 Kind = k_DPRRegisterList;
2450 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].
2451 contains(Regs.front().second))
2452 Kind = k_SPRRegisterList;
2454 // Sort based on the register encoding values.
2455 array_pod_sort(Regs.begin(), Regs.end());
2457 ARMOperand *Op = new ARMOperand(Kind);
2458 for (SmallVectorImpl<std::pair<unsigned, unsigned> >::const_iterator
2459 I = Regs.begin(), E = Regs.end(); I != E; ++I)
2460 Op->Registers.push_back(I->second);
2461 Op->StartLoc = StartLoc;
2462 Op->EndLoc = EndLoc;
2466 static ARMOperand *CreateVectorList(unsigned RegNum, unsigned Count,
2467 bool isDoubleSpaced, SMLoc S, SMLoc E) {
2468 ARMOperand *Op = new ARMOperand(k_VectorList);
2469 Op->VectorList.RegNum = RegNum;
2470 Op->VectorList.Count = Count;
2471 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2477 static ARMOperand *CreateVectorListAllLanes(unsigned RegNum, unsigned Count,
2478 bool isDoubleSpaced,
2480 ARMOperand *Op = new ARMOperand(k_VectorListAllLanes);
2481 Op->VectorList.RegNum = RegNum;
2482 Op->VectorList.Count = Count;
2483 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2489 static ARMOperand *CreateVectorListIndexed(unsigned RegNum, unsigned Count,
2491 bool isDoubleSpaced,
2493 ARMOperand *Op = new ARMOperand(k_VectorListIndexed);
2494 Op->VectorList.RegNum = RegNum;
2495 Op->VectorList.Count = Count;
2496 Op->VectorList.LaneIndex = Index;
2497 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2503 static ARMOperand *CreateVectorIndex(unsigned Idx, SMLoc S, SMLoc E,
2505 ARMOperand *Op = new ARMOperand(k_VectorIndex);
2506 Op->VectorIndex.Val = Idx;
2512 static ARMOperand *CreateImm(const MCExpr *Val, SMLoc S, SMLoc E) {
2513 ARMOperand *Op = new ARMOperand(k_Immediate);
2520 static ARMOperand *CreateMem(unsigned BaseRegNum,
2521 const MCConstantExpr *OffsetImm,
2522 unsigned OffsetRegNum,
2523 ARM_AM::ShiftOpc ShiftType,
2528 ARMOperand *Op = new ARMOperand(k_Memory);
2529 Op->Memory.BaseRegNum = BaseRegNum;
2530 Op->Memory.OffsetImm = OffsetImm;
2531 Op->Memory.OffsetRegNum = OffsetRegNum;
2532 Op->Memory.ShiftType = ShiftType;
2533 Op->Memory.ShiftImm = ShiftImm;
2534 Op->Memory.Alignment = Alignment;
2535 Op->Memory.isNegative = isNegative;
2541 static ARMOperand *CreatePostIdxReg(unsigned RegNum, bool isAdd,
2542 ARM_AM::ShiftOpc ShiftTy,
2545 ARMOperand *Op = new ARMOperand(k_PostIndexRegister);
2546 Op->PostIdxReg.RegNum = RegNum;
2547 Op->PostIdxReg.isAdd = isAdd;
2548 Op->PostIdxReg.ShiftTy = ShiftTy;
2549 Op->PostIdxReg.ShiftImm = ShiftImm;
2555 static ARMOperand *CreateMemBarrierOpt(ARM_MB::MemBOpt Opt, SMLoc S) {
2556 ARMOperand *Op = new ARMOperand(k_MemBarrierOpt);
2557 Op->MBOpt.Val = Opt;
2563 static ARMOperand *CreateInstSyncBarrierOpt(ARM_ISB::InstSyncBOpt Opt,
2565 ARMOperand *Op = new ARMOperand(k_InstSyncBarrierOpt);
2566 Op->ISBOpt.Val = Opt;
2572 static ARMOperand *CreateProcIFlags(ARM_PROC::IFlags IFlags, SMLoc S) {
2573 ARMOperand *Op = new ARMOperand(k_ProcIFlags);
2574 Op->IFlags.Val = IFlags;
2580 static ARMOperand *CreateMSRMask(unsigned MMask, SMLoc S) {
2581 ARMOperand *Op = new ARMOperand(k_MSRMask);
2582 Op->MMask.Val = MMask;
2589 } // end anonymous namespace.
2591 void ARMOperand::print(raw_ostream &OS) const {
2594 OS << "<ARMCC::" << ARMCondCodeToString(getCondCode()) << ">";
2597 OS << "<ccout " << getReg() << ">";
2599 case k_ITCondMask: {
2600 static const char *const MaskStr[] = {
2601 "()", "(t)", "(e)", "(tt)", "(et)", "(te)", "(ee)", "(ttt)", "(ett)",
2602 "(tet)", "(eet)", "(tte)", "(ete)", "(tee)", "(eee)"
2604 assert((ITMask.Mask & 0xf) == ITMask.Mask);
2605 OS << "<it-mask " << MaskStr[ITMask.Mask] << ">";
2609 OS << "<coprocessor number: " << getCoproc() << ">";
2612 OS << "<coprocessor register: " << getCoproc() << ">";
2614 case k_CoprocOption:
2615 OS << "<coprocessor option: " << CoprocOption.Val << ">";
2618 OS << "<mask: " << getMSRMask() << ">";
2621 getImm()->print(OS);
2623 case k_MemBarrierOpt:
2624 OS << "<ARM_MB::" << MemBOptToString(getMemBarrierOpt(), false) << ">";
2626 case k_InstSyncBarrierOpt:
2627 OS << "<ARM_ISB::" << InstSyncBOptToString(getInstSyncBarrierOpt()) << ">";
2631 << " base:" << Memory.BaseRegNum;
2634 case k_PostIndexRegister:
2635 OS << "post-idx register " << (PostIdxReg.isAdd ? "" : "-")
2636 << PostIdxReg.RegNum;
2637 if (PostIdxReg.ShiftTy != ARM_AM::no_shift)
2638 OS << ARM_AM::getShiftOpcStr(PostIdxReg.ShiftTy) << " "
2639 << PostIdxReg.ShiftImm;
2642 case k_ProcIFlags: {
2643 OS << "<ARM_PROC::";
2644 unsigned IFlags = getProcIFlags();
2645 for (int i=2; i >= 0; --i)
2646 if (IFlags & (1 << i))
2647 OS << ARM_PROC::IFlagsToString(1 << i);
2652 OS << "<register " << getReg() << ">";
2654 case k_ShifterImmediate:
2655 OS << "<shift " << (ShifterImm.isASR ? "asr" : "lsl")
2656 << " #" << ShifterImm.Imm << ">";
2658 case k_ShiftedRegister:
2659 OS << "<so_reg_reg "
2660 << RegShiftedReg.SrcReg << " "
2661 << ARM_AM::getShiftOpcStr(RegShiftedReg.ShiftTy)
2662 << " " << RegShiftedReg.ShiftReg << ">";
2664 case k_ShiftedImmediate:
2665 OS << "<so_reg_imm "
2666 << RegShiftedImm.SrcReg << " "
2667 << ARM_AM::getShiftOpcStr(RegShiftedImm.ShiftTy)
2668 << " #" << RegShiftedImm.ShiftImm << ">";
2670 case k_RotateImmediate:
2671 OS << "<ror " << " #" << (RotImm.Imm * 8) << ">";
2673 case k_BitfieldDescriptor:
2674 OS << "<bitfield " << "lsb: " << Bitfield.LSB
2675 << ", width: " << Bitfield.Width << ">";
2677 case k_RegisterList:
2678 case k_DPRRegisterList:
2679 case k_SPRRegisterList: {
2680 OS << "<register_list ";
2682 const SmallVectorImpl<unsigned> &RegList = getRegList();
2683 for (SmallVectorImpl<unsigned>::const_iterator
2684 I = RegList.begin(), E = RegList.end(); I != E; ) {
2686 if (++I < E) OS << ", ";
2693 OS << "<vector_list " << VectorList.Count << " * "
2694 << VectorList.RegNum << ">";
2696 case k_VectorListAllLanes:
2697 OS << "<vector_list(all lanes) " << VectorList.Count << " * "
2698 << VectorList.RegNum << ">";
2700 case k_VectorListIndexed:
2701 OS << "<vector_list(lane " << VectorList.LaneIndex << ") "
2702 << VectorList.Count << " * " << VectorList.RegNum << ">";
2705 OS << "'" << getToken() << "'";
2708 OS << "<vectorindex " << getVectorIndex() << ">";
2713 /// @name Auto-generated Match Functions
2716 static unsigned MatchRegisterName(StringRef Name);
2720 bool ARMAsmParser::ParseRegister(unsigned &RegNo,
2721 SMLoc &StartLoc, SMLoc &EndLoc) {
2722 StartLoc = Parser.getTok().getLoc();
2723 EndLoc = Parser.getTok().getEndLoc();
2724 RegNo = tryParseRegister();
2726 return (RegNo == (unsigned)-1);
2729 /// Try to parse a register name. The token must be an Identifier when called,
2730 /// and if it is a register name the token is eaten and the register number is
2731 /// returned. Otherwise return -1.
2733 int ARMAsmParser::tryParseRegister() {
2734 const AsmToken &Tok = Parser.getTok();
2735 if (Tok.isNot(AsmToken::Identifier)) return -1;
2737 std::string lowerCase = Tok.getString().lower();
2738 unsigned RegNum = MatchRegisterName(lowerCase);
2740 RegNum = StringSwitch<unsigned>(lowerCase)
2741 .Case("r13", ARM::SP)
2742 .Case("r14", ARM::LR)
2743 .Case("r15", ARM::PC)
2744 .Case("ip", ARM::R12)
2745 // Additional register name aliases for 'gas' compatibility.
2746 .Case("a1", ARM::R0)
2747 .Case("a2", ARM::R1)
2748 .Case("a3", ARM::R2)
2749 .Case("a4", ARM::R3)
2750 .Case("v1", ARM::R4)
2751 .Case("v2", ARM::R5)
2752 .Case("v3", ARM::R6)
2753 .Case("v4", ARM::R7)
2754 .Case("v5", ARM::R8)
2755 .Case("v6", ARM::R9)
2756 .Case("v7", ARM::R10)
2757 .Case("v8", ARM::R11)
2758 .Case("sb", ARM::R9)
2759 .Case("sl", ARM::R10)
2760 .Case("fp", ARM::R11)
2764 // Check for aliases registered via .req. Canonicalize to lower case.
2765 // That's more consistent since register names are case insensitive, and
2766 // it's how the original entry was passed in from MC/MCParser/AsmParser.
2767 StringMap<unsigned>::const_iterator Entry = RegisterReqs.find(lowerCase);
2768 // If no match, return failure.
2769 if (Entry == RegisterReqs.end())
2771 Parser.Lex(); // Eat identifier token.
2772 return Entry->getValue();
2775 Parser.Lex(); // Eat identifier token.
2780 // Try to parse a shifter (e.g., "lsl <amt>"). On success, return 0.
2781 // If a recoverable error occurs, return 1. If an irrecoverable error
2782 // occurs, return -1. An irrecoverable error is one where tokens have been
2783 // consumed in the process of trying to parse the shifter (i.e., when it is
2784 // indeed a shifter operand, but malformed).
2785 int ARMAsmParser::tryParseShiftRegister(
2786 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2787 SMLoc S = Parser.getTok().getLoc();
2788 const AsmToken &Tok = Parser.getTok();
2789 if (Tok.isNot(AsmToken::Identifier))
2792 std::string lowerCase = Tok.getString().lower();
2793 ARM_AM::ShiftOpc ShiftTy = StringSwitch<ARM_AM::ShiftOpc>(lowerCase)
2794 .Case("asl", ARM_AM::lsl)
2795 .Case("lsl", ARM_AM::lsl)
2796 .Case("lsr", ARM_AM::lsr)
2797 .Case("asr", ARM_AM::asr)
2798 .Case("ror", ARM_AM::ror)
2799 .Case("rrx", ARM_AM::rrx)
2800 .Default(ARM_AM::no_shift);
2802 if (ShiftTy == ARM_AM::no_shift)
2805 Parser.Lex(); // Eat the operator.
2807 // The source register for the shift has already been added to the
2808 // operand list, so we need to pop it off and combine it into the shifted
2809 // register operand instead.
2810 OwningPtr<ARMOperand> PrevOp((ARMOperand*)Operands.pop_back_val());
2811 if (!PrevOp->isReg())
2812 return Error(PrevOp->getStartLoc(), "shift must be of a register");
2813 int SrcReg = PrevOp->getReg();
2818 if (ShiftTy == ARM_AM::rrx) {
2819 // RRX Doesn't have an explicit shift amount. The encoder expects
2820 // the shift register to be the same as the source register. Seems odd,
2824 // Figure out if this is shifted by a constant or a register (for non-RRX).
2825 if (Parser.getTok().is(AsmToken::Hash) ||
2826 Parser.getTok().is(AsmToken::Dollar)) {
2827 Parser.Lex(); // Eat hash.
2828 SMLoc ImmLoc = Parser.getTok().getLoc();
2829 const MCExpr *ShiftExpr = 0;
2830 if (getParser().parseExpression(ShiftExpr, EndLoc)) {
2831 Error(ImmLoc, "invalid immediate shift value");
2834 // The expression must be evaluatable as an immediate.
2835 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftExpr);
2837 Error(ImmLoc, "invalid immediate shift value");
2840 // Range check the immediate.
2841 // lsl, ror: 0 <= imm <= 31
2842 // lsr, asr: 0 <= imm <= 32
2843 Imm = CE->getValue();
2845 ((ShiftTy == ARM_AM::lsl || ShiftTy == ARM_AM::ror) && Imm > 31) ||
2846 ((ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr) && Imm > 32)) {
2847 Error(ImmLoc, "immediate shift value out of range");
2850 // shift by zero is a nop. Always send it through as lsl.
2851 // ('as' compatibility)
2853 ShiftTy = ARM_AM::lsl;
2854 } else if (Parser.getTok().is(AsmToken::Identifier)) {
2855 SMLoc L = Parser.getTok().getLoc();
2856 EndLoc = Parser.getTok().getEndLoc();
2857 ShiftReg = tryParseRegister();
2858 if (ShiftReg == -1) {
2859 Error (L, "expected immediate or register in shift operand");
2863 Error (Parser.getTok().getLoc(),
2864 "expected immediate or register in shift operand");
2869 if (ShiftReg && ShiftTy != ARM_AM::rrx)
2870 Operands.push_back(ARMOperand::CreateShiftedRegister(ShiftTy, SrcReg,
2874 Operands.push_back(ARMOperand::CreateShiftedImmediate(ShiftTy, SrcReg, Imm,
2881 /// Try to parse a register name. The token must be an Identifier when called.
2882 /// If it's a register, an AsmOperand is created. Another AsmOperand is created
2883 /// if there is a "writeback". 'true' if it's not a register.
2885 /// TODO this is likely to change to allow different register types and or to
2886 /// parse for a specific register type.
2888 tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2889 const AsmToken &RegTok = Parser.getTok();
2890 int RegNo = tryParseRegister();
2894 Operands.push_back(ARMOperand::CreateReg(RegNo, RegTok.getLoc(),
2895 RegTok.getEndLoc()));
2897 const AsmToken &ExclaimTok = Parser.getTok();
2898 if (ExclaimTok.is(AsmToken::Exclaim)) {
2899 Operands.push_back(ARMOperand::CreateToken(ExclaimTok.getString(),
2900 ExclaimTok.getLoc()));
2901 Parser.Lex(); // Eat exclaim token
2905 // Also check for an index operand. This is only legal for vector registers,
2906 // but that'll get caught OK in operand matching, so we don't need to
2907 // explicitly filter everything else out here.
2908 if (Parser.getTok().is(AsmToken::LBrac)) {
2909 SMLoc SIdx = Parser.getTok().getLoc();
2910 Parser.Lex(); // Eat left bracket token.
2912 const MCExpr *ImmVal;
2913 if (getParser().parseExpression(ImmVal))
2915 const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(ImmVal);
2917 return TokError("immediate value expected for vector index");
2919 if (Parser.getTok().isNot(AsmToken::RBrac))
2920 return Error(Parser.getTok().getLoc(), "']' expected");
2922 SMLoc E = Parser.getTok().getEndLoc();
2923 Parser.Lex(); // Eat right bracket token.
2925 Operands.push_back(ARMOperand::CreateVectorIndex(MCE->getValue(),
2933 /// MatchCoprocessorOperandName - Try to parse an coprocessor related
2934 /// instruction with a symbolic operand name. Example: "p1", "p7", "c3",
2936 static int MatchCoprocessorOperandName(StringRef Name, char CoprocOp) {
2937 // Use the same layout as the tablegen'erated register name matcher. Ugly,
2939 switch (Name.size()) {
2942 if (Name[0] != CoprocOp)
2958 if (Name[0] != CoprocOp || Name[1] != '1')
2962 // p10 and p11 are invalid for coproc instructions (reserved for FP/NEON)
2963 case '0': return CoprocOp == 'p'? -1: 10;
2964 case '1': return CoprocOp == 'p'? -1: 11;
2965 case '2': return 12;
2966 case '3': return 13;
2967 case '4': return 14;
2968 case '5': return 15;
2973 /// parseITCondCode - Try to parse a condition code for an IT instruction.
2974 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2975 parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2976 SMLoc S = Parser.getTok().getLoc();
2977 const AsmToken &Tok = Parser.getTok();
2978 if (!Tok.is(AsmToken::Identifier))
2979 return MatchOperand_NoMatch;
2980 unsigned CC = StringSwitch<unsigned>(Tok.getString().lower())
2981 .Case("eq", ARMCC::EQ)
2982 .Case("ne", ARMCC::NE)
2983 .Case("hs", ARMCC::HS)
2984 .Case("cs", ARMCC::HS)
2985 .Case("lo", ARMCC::LO)
2986 .Case("cc", ARMCC::LO)
2987 .Case("mi", ARMCC::MI)
2988 .Case("pl", ARMCC::PL)
2989 .Case("vs", ARMCC::VS)
2990 .Case("vc", ARMCC::VC)
2991 .Case("hi", ARMCC::HI)
2992 .Case("ls", ARMCC::LS)
2993 .Case("ge", ARMCC::GE)
2994 .Case("lt", ARMCC::LT)
2995 .Case("gt", ARMCC::GT)
2996 .Case("le", ARMCC::LE)
2997 .Case("al", ARMCC::AL)
3000 return MatchOperand_NoMatch;
3001 Parser.Lex(); // Eat the token.
3003 Operands.push_back(ARMOperand::CreateCondCode(ARMCC::CondCodes(CC), S));
3005 return MatchOperand_Success;
3008 /// parseCoprocNumOperand - Try to parse an coprocessor number operand. The
3009 /// token must be an Identifier when called, and if it is a coprocessor
3010 /// number, the token is eaten and the operand is added to the operand list.
3011 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3012 parseCoprocNumOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3013 SMLoc S = Parser.getTok().getLoc();
3014 const AsmToken &Tok = Parser.getTok();
3015 if (Tok.isNot(AsmToken::Identifier))
3016 return MatchOperand_NoMatch;
3018 int Num = MatchCoprocessorOperandName(Tok.getString(), 'p');
3020 return MatchOperand_NoMatch;
3022 Parser.Lex(); // Eat identifier token.
3023 Operands.push_back(ARMOperand::CreateCoprocNum(Num, S));
3024 return MatchOperand_Success;
3027 /// parseCoprocRegOperand - Try to parse an coprocessor register operand. The
3028 /// token must be an Identifier when called, and if it is a coprocessor
3029 /// number, the token is eaten and the operand is added to the operand list.
3030 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3031 parseCoprocRegOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3032 SMLoc S = Parser.getTok().getLoc();
3033 const AsmToken &Tok = Parser.getTok();
3034 if (Tok.isNot(AsmToken::Identifier))
3035 return MatchOperand_NoMatch;
3037 int Reg = MatchCoprocessorOperandName(Tok.getString(), 'c');
3039 return MatchOperand_NoMatch;
3041 Parser.Lex(); // Eat identifier token.
3042 Operands.push_back(ARMOperand::CreateCoprocReg(Reg, S));
3043 return MatchOperand_Success;
3046 /// parseCoprocOptionOperand - Try to parse an coprocessor option operand.
3047 /// coproc_option : '{' imm0_255 '}'
3048 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3049 parseCoprocOptionOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3050 SMLoc S = Parser.getTok().getLoc();
3052 // If this isn't a '{', this isn't a coprocessor immediate operand.
3053 if (Parser.getTok().isNot(AsmToken::LCurly))
3054 return MatchOperand_NoMatch;
3055 Parser.Lex(); // Eat the '{'
3058 SMLoc Loc = Parser.getTok().getLoc();
3059 if (getParser().parseExpression(Expr)) {
3060 Error(Loc, "illegal expression");
3061 return MatchOperand_ParseFail;
3063 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
3064 if (!CE || CE->getValue() < 0 || CE->getValue() > 255) {
3065 Error(Loc, "coprocessor option must be an immediate in range [0, 255]");
3066 return MatchOperand_ParseFail;
3068 int Val = CE->getValue();
3070 // Check for and consume the closing '}'
3071 if (Parser.getTok().isNot(AsmToken::RCurly))
3072 return MatchOperand_ParseFail;
3073 SMLoc E = Parser.getTok().getEndLoc();
3074 Parser.Lex(); // Eat the '}'
3076 Operands.push_back(ARMOperand::CreateCoprocOption(Val, S, E));
3077 return MatchOperand_Success;
3080 // For register list parsing, we need to map from raw GPR register numbering
3081 // to the enumeration values. The enumeration values aren't sorted by
3082 // register number due to our using "sp", "lr" and "pc" as canonical names.
3083 static unsigned getNextRegister(unsigned Reg) {
3084 // If this is a GPR, we need to do it manually, otherwise we can rely
3085 // on the sort ordering of the enumeration since the other reg-classes
3087 if (!ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3090 default: llvm_unreachable("Invalid GPR number!");
3091 case ARM::R0: return ARM::R1; case ARM::R1: return ARM::R2;
3092 case ARM::R2: return ARM::R3; case ARM::R3: return ARM::R4;
3093 case ARM::R4: return ARM::R5; case ARM::R5: return ARM::R6;
3094 case ARM::R6: return ARM::R7; case ARM::R7: return ARM::R8;
3095 case ARM::R8: return ARM::R9; case ARM::R9: return ARM::R10;
3096 case ARM::R10: return ARM::R11; case ARM::R11: return ARM::R12;
3097 case ARM::R12: return ARM::SP; case ARM::SP: return ARM::LR;
3098 case ARM::LR: return ARM::PC; case ARM::PC: return ARM::R0;
3102 // Return the low-subreg of a given Q register.
3103 static unsigned getDRegFromQReg(unsigned QReg) {
3105 default: llvm_unreachable("expected a Q register!");
3106 case ARM::Q0: return ARM::D0;
3107 case ARM::Q1: return ARM::D2;
3108 case ARM::Q2: return ARM::D4;
3109 case ARM::Q3: return ARM::D6;
3110 case ARM::Q4: return ARM::D8;
3111 case ARM::Q5: return ARM::D10;
3112 case ARM::Q6: return ARM::D12;
3113 case ARM::Q7: return ARM::D14;
3114 case ARM::Q8: return ARM::D16;
3115 case ARM::Q9: return ARM::D18;
3116 case ARM::Q10: return ARM::D20;
3117 case ARM::Q11: return ARM::D22;
3118 case ARM::Q12: return ARM::D24;
3119 case ARM::Q13: return ARM::D26;
3120 case ARM::Q14: return ARM::D28;
3121 case ARM::Q15: return ARM::D30;
3125 /// Parse a register list.
3127 parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3128 assert(Parser.getTok().is(AsmToken::LCurly) &&
3129 "Token is not a Left Curly Brace");
3130 SMLoc S = Parser.getTok().getLoc();
3131 Parser.Lex(); // Eat '{' token.
3132 SMLoc RegLoc = Parser.getTok().getLoc();
3134 // Check the first register in the list to see what register class
3135 // this is a list of.
3136 int Reg = tryParseRegister();
3138 return Error(RegLoc, "register expected");
3140 // The reglist instructions have at most 16 registers, so reserve
3141 // space for that many.
3143 SmallVector<std::pair<unsigned, unsigned>, 16> Registers;
3145 // Allow Q regs and just interpret them as the two D sub-registers.
3146 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3147 Reg = getDRegFromQReg(Reg);
3148 EReg = MRI->getEncodingValue(Reg);
3149 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3152 const MCRegisterClass *RC;
3153 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3154 RC = &ARMMCRegisterClasses[ARM::GPRRegClassID];
3155 else if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg))
3156 RC = &ARMMCRegisterClasses[ARM::DPRRegClassID];
3157 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].contains(Reg))
3158 RC = &ARMMCRegisterClasses[ARM::SPRRegClassID];
3160 return Error(RegLoc, "invalid register in register list");
3162 // Store the register.
3163 EReg = MRI->getEncodingValue(Reg);
3164 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3166 // This starts immediately after the first register token in the list,
3167 // so we can see either a comma or a minus (range separator) as a legal
3169 while (Parser.getTok().is(AsmToken::Comma) ||
3170 Parser.getTok().is(AsmToken::Minus)) {
3171 if (Parser.getTok().is(AsmToken::Minus)) {
3172 Parser.Lex(); // Eat the minus.
3173 SMLoc AfterMinusLoc = Parser.getTok().getLoc();
3174 int EndReg = tryParseRegister();
3176 return Error(AfterMinusLoc, "register expected");
3177 // Allow Q regs and just interpret them as the two D sub-registers.
3178 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3179 EndReg = getDRegFromQReg(EndReg) + 1;
3180 // If the register is the same as the start reg, there's nothing
3184 // The register must be in the same register class as the first.
3185 if (!RC->contains(EndReg))
3186 return Error(AfterMinusLoc, "invalid register in register list");
3187 // Ranges must go from low to high.
3188 if (MRI->getEncodingValue(Reg) > MRI->getEncodingValue(EndReg))
3189 return Error(AfterMinusLoc, "bad range in register list");
3191 // Add all the registers in the range to the register list.
3192 while (Reg != EndReg) {
3193 Reg = getNextRegister(Reg);
3194 EReg = MRI->getEncodingValue(Reg);
3195 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3199 Parser.Lex(); // Eat the comma.
3200 RegLoc = Parser.getTok().getLoc();
3202 const AsmToken RegTok = Parser.getTok();
3203 Reg = tryParseRegister();
3205 return Error(RegLoc, "register expected");
3206 // Allow Q regs and just interpret them as the two D sub-registers.
3207 bool isQReg = false;
3208 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3209 Reg = getDRegFromQReg(Reg);
3212 // The register must be in the same register class as the first.
3213 if (!RC->contains(Reg))
3214 return Error(RegLoc, "invalid register in register list");
3215 // List must be monotonically increasing.
3216 if (MRI->getEncodingValue(Reg) < MRI->getEncodingValue(OldReg)) {
3217 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3218 Warning(RegLoc, "register list not in ascending order");
3220 return Error(RegLoc, "register list not in ascending order");
3222 if (MRI->getEncodingValue(Reg) == MRI->getEncodingValue(OldReg)) {
3223 Warning(RegLoc, "duplicated register (" + RegTok.getString() +
3224 ") in register list");
3227 // VFP register lists must also be contiguous.
3228 if (RC != &ARMMCRegisterClasses[ARM::GPRRegClassID] &&
3230 return Error(RegLoc, "non-contiguous register range");
3231 EReg = MRI->getEncodingValue(Reg);
3232 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3234 EReg = MRI->getEncodingValue(++Reg);
3235 Registers.push_back(std::pair<unsigned, unsigned>(EReg, Reg));
3239 if (Parser.getTok().isNot(AsmToken::RCurly))
3240 return Error(Parser.getTok().getLoc(), "'}' expected");
3241 SMLoc E = Parser.getTok().getEndLoc();
3242 Parser.Lex(); // Eat '}' token.
3244 // Push the register list operand.
3245 Operands.push_back(ARMOperand::CreateRegList(Registers, S, E));
3247 // The ARM system instruction variants for LDM/STM have a '^' token here.
3248 if (Parser.getTok().is(AsmToken::Caret)) {
3249 Operands.push_back(ARMOperand::CreateToken("^",Parser.getTok().getLoc()));
3250 Parser.Lex(); // Eat '^' token.
3256 // Helper function to parse the lane index for vector lists.
3257 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3258 parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index, SMLoc &EndLoc) {
3259 Index = 0; // Always return a defined index value.
3260 if (Parser.getTok().is(AsmToken::LBrac)) {
3261 Parser.Lex(); // Eat the '['.
3262 if (Parser.getTok().is(AsmToken::RBrac)) {
3263 // "Dn[]" is the 'all lanes' syntax.
3264 LaneKind = AllLanes;
3265 EndLoc = Parser.getTok().getEndLoc();
3266 Parser.Lex(); // Eat the ']'.
3267 return MatchOperand_Success;
3270 // There's an optional '#' token here. Normally there wouldn't be, but
3271 // inline assemble puts one in, and it's friendly to accept that.
3272 if (Parser.getTok().is(AsmToken::Hash))
3273 Parser.Lex(); // Eat '#' or '$'.
3275 const MCExpr *LaneIndex;
3276 SMLoc Loc = Parser.getTok().getLoc();
3277 if (getParser().parseExpression(LaneIndex)) {
3278 Error(Loc, "illegal expression");
3279 return MatchOperand_ParseFail;
3281 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LaneIndex);
3283 Error(Loc, "lane index must be empty or an integer");
3284 return MatchOperand_ParseFail;
3286 if (Parser.getTok().isNot(AsmToken::RBrac)) {
3287 Error(Parser.getTok().getLoc(), "']' expected");
3288 return MatchOperand_ParseFail;
3290 EndLoc = Parser.getTok().getEndLoc();
3291 Parser.Lex(); // Eat the ']'.
3292 int64_t Val = CE->getValue();
3294 // FIXME: Make this range check context sensitive for .8, .16, .32.
3295 if (Val < 0 || Val > 7) {
3296 Error(Parser.getTok().getLoc(), "lane index out of range");
3297 return MatchOperand_ParseFail;
3300 LaneKind = IndexedLane;
3301 return MatchOperand_Success;
3304 return MatchOperand_Success;
3307 // parse a vector register list
3308 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3309 parseVectorList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3310 VectorLaneTy LaneKind;
3312 SMLoc S = Parser.getTok().getLoc();
3313 // As an extension (to match gas), support a plain D register or Q register
3314 // (without encosing curly braces) as a single or double entry list,
3316 if (Parser.getTok().is(AsmToken::Identifier)) {
3317 SMLoc E = Parser.getTok().getEndLoc();
3318 int Reg = tryParseRegister();
3320 return MatchOperand_NoMatch;
3321 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg)) {
3322 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex, E);
3323 if (Res != MatchOperand_Success)
3327 Operands.push_back(ARMOperand::CreateVectorList(Reg, 1, false, S, E));
3330 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 1, false,
3334 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 1,
3339 return MatchOperand_Success;
3341 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3342 Reg = getDRegFromQReg(Reg);
3343 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex, E);
3344 if (Res != MatchOperand_Success)
3348 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3349 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3350 Operands.push_back(ARMOperand::CreateVectorList(Reg, 2, false, S, E));
3353 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3354 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3355 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 2, false,
3359 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 2,
3364 return MatchOperand_Success;
3366 Error(S, "vector register expected");
3367 return MatchOperand_ParseFail;
3370 if (Parser.getTok().isNot(AsmToken::LCurly))
3371 return MatchOperand_NoMatch;
3373 Parser.Lex(); // Eat '{' token.
3374 SMLoc RegLoc = Parser.getTok().getLoc();
3376 int Reg = tryParseRegister();
3378 Error(RegLoc, "register expected");
3379 return MatchOperand_ParseFail;
3383 unsigned FirstReg = Reg;
3384 // The list is of D registers, but we also allow Q regs and just interpret
3385 // them as the two D sub-registers.
3386 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3387 FirstReg = Reg = getDRegFromQReg(Reg);
3388 Spacing = 1; // double-spacing requires explicit D registers, otherwise
3389 // it's ambiguous with four-register single spaced.
3395 if (parseVectorLane(LaneKind, LaneIndex, E) != MatchOperand_Success)
3396 return MatchOperand_ParseFail;
3398 while (Parser.getTok().is(AsmToken::Comma) ||
3399 Parser.getTok().is(AsmToken::Minus)) {
3400 if (Parser.getTok().is(AsmToken::Minus)) {
3402 Spacing = 1; // Register range implies a single spaced list.
3403 else if (Spacing == 2) {
3404 Error(Parser.getTok().getLoc(),
3405 "sequential registers in double spaced list");
3406 return MatchOperand_ParseFail;
3408 Parser.Lex(); // Eat the minus.
3409 SMLoc AfterMinusLoc = Parser.getTok().getLoc();
3410 int EndReg = tryParseRegister();
3412 Error(AfterMinusLoc, "register expected");
3413 return MatchOperand_ParseFail;
3415 // Allow Q regs and just interpret them as the two D sub-registers.
3416 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3417 EndReg = getDRegFromQReg(EndReg) + 1;
3418 // If the register is the same as the start reg, there's nothing
3422 // The register must be in the same register class as the first.
3423 if (!ARMMCRegisterClasses[ARM::DPRRegClassID].contains(EndReg)) {
3424 Error(AfterMinusLoc, "invalid register in register list");
3425 return MatchOperand_ParseFail;
3427 // Ranges must go from low to high.
3429 Error(AfterMinusLoc, "bad range in register list");
3430 return MatchOperand_ParseFail;
3432 // Parse the lane specifier if present.
3433 VectorLaneTy NextLaneKind;
3434 unsigned NextLaneIndex;
3435 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) !=
3436 MatchOperand_Success)
3437 return MatchOperand_ParseFail;
3438 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3439 Error(AfterMinusLoc, "mismatched lane index in register list");
3440 return MatchOperand_ParseFail;
3443 // Add all the registers in the range to the register list.
3444 Count += EndReg - Reg;
3448 Parser.Lex(); // Eat the comma.
3449 RegLoc = Parser.getTok().getLoc();
3451 Reg = tryParseRegister();
3453 Error(RegLoc, "register expected");
3454 return MatchOperand_ParseFail;
3456 // vector register lists must be contiguous.
3457 // It's OK to use the enumeration values directly here rather, as the
3458 // VFP register classes have the enum sorted properly.
3460 // The list is of D registers, but we also allow Q regs and just interpret
3461 // them as the two D sub-registers.
3462 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3464 Spacing = 1; // Register range implies a single spaced list.
3465 else if (Spacing == 2) {
3467 "invalid register in double-spaced list (must be 'D' register')");
3468 return MatchOperand_ParseFail;
3470 Reg = getDRegFromQReg(Reg);
3471 if (Reg != OldReg + 1) {
3472 Error(RegLoc, "non-contiguous register range");
3473 return MatchOperand_ParseFail;
3477 // Parse the lane specifier if present.
3478 VectorLaneTy NextLaneKind;
3479 unsigned NextLaneIndex;
3480 SMLoc LaneLoc = Parser.getTok().getLoc();
3481 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) !=
3482 MatchOperand_Success)
3483 return MatchOperand_ParseFail;
3484 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3485 Error(LaneLoc, "mismatched lane index in register list");
3486 return MatchOperand_ParseFail;
3490 // Normal D register.
3491 // Figure out the register spacing (single or double) of the list if
3492 // we don't know it already.
3494 Spacing = 1 + (Reg == OldReg + 2);
3496 // Just check that it's contiguous and keep going.
3497 if (Reg != OldReg + Spacing) {
3498 Error(RegLoc, "non-contiguous register range");
3499 return MatchOperand_ParseFail;
3502 // Parse the lane specifier if present.
3503 VectorLaneTy NextLaneKind;
3504 unsigned NextLaneIndex;
3505 SMLoc EndLoc = Parser.getTok().getLoc();
3506 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) != MatchOperand_Success)
3507 return MatchOperand_ParseFail;
3508 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3509 Error(EndLoc, "mismatched lane index in register list");
3510 return MatchOperand_ParseFail;
3514 if (Parser.getTok().isNot(AsmToken::RCurly)) {
3515 Error(Parser.getTok().getLoc(), "'}' expected");
3516 return MatchOperand_ParseFail;
3518 E = Parser.getTok().getEndLoc();
3519 Parser.Lex(); // Eat '}' token.
3523 // Two-register operands have been converted to the
3524 // composite register classes.
3526 const MCRegisterClass *RC = (Spacing == 1) ?
3527 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3528 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3529 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3532 Operands.push_back(ARMOperand::CreateVectorList(FirstReg, Count,
3533 (Spacing == 2), S, E));
3536 // Two-register operands have been converted to the
3537 // composite register classes.
3539 const MCRegisterClass *RC = (Spacing == 1) ?
3540 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3541 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3542 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3544 Operands.push_back(ARMOperand::CreateVectorListAllLanes(FirstReg, Count,
3549 Operands.push_back(ARMOperand::CreateVectorListIndexed(FirstReg, Count,
3555 return MatchOperand_Success;
3558 /// parseMemBarrierOptOperand - Try to parse DSB/DMB data barrier options.
3559 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3560 parseMemBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3561 SMLoc S = Parser.getTok().getLoc();
3562 const AsmToken &Tok = Parser.getTok();
3565 if (Tok.is(AsmToken::Identifier)) {
3566 StringRef OptStr = Tok.getString();
3568 Opt = StringSwitch<unsigned>(OptStr.slice(0, OptStr.size()).lower())
3569 .Case("sy", ARM_MB::SY)
3570 .Case("st", ARM_MB::ST)
3571 .Case("ld", ARM_MB::LD)
3572 .Case("sh", ARM_MB::ISH)
3573 .Case("ish", ARM_MB::ISH)
3574 .Case("shst", ARM_MB::ISHST)
3575 .Case("ishst", ARM_MB::ISHST)
3576 .Case("ishld", ARM_MB::ISHLD)
3577 .Case("nsh", ARM_MB::NSH)
3578 .Case("un", ARM_MB::NSH)
3579 .Case("nshst", ARM_MB::NSHST)
3580 .Case("nshld", ARM_MB::NSHLD)
3581 .Case("unst", ARM_MB::NSHST)
3582 .Case("osh", ARM_MB::OSH)
3583 .Case("oshst", ARM_MB::OSHST)
3584 .Case("oshld", ARM_MB::OSHLD)
3587 // ishld, oshld, nshld and ld are only available from ARMv8.
3588 if (!hasV8Ops() && (Opt == ARM_MB::ISHLD || Opt == ARM_MB::OSHLD ||
3589 Opt == ARM_MB::NSHLD || Opt == ARM_MB::LD))
3593 return MatchOperand_NoMatch;
3595 Parser.Lex(); // Eat identifier token.
3596 } else if (Tok.is(AsmToken::Hash) ||
3597 Tok.is(AsmToken::Dollar) ||
3598 Tok.is(AsmToken::Integer)) {
3599 if (Parser.getTok().isNot(AsmToken::Integer))
3600 Parser.Lex(); // Eat '#' or '$'.
3601 SMLoc Loc = Parser.getTok().getLoc();
3603 const MCExpr *MemBarrierID;
3604 if (getParser().parseExpression(MemBarrierID)) {
3605 Error(Loc, "illegal expression");
3606 return MatchOperand_ParseFail;
3609 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(MemBarrierID);
3611 Error(Loc, "constant expression expected");
3612 return MatchOperand_ParseFail;
3615 int Val = CE->getValue();
3617 Error(Loc, "immediate value out of range");
3618 return MatchOperand_ParseFail;
3621 Opt = ARM_MB::RESERVED_0 + Val;
3623 return MatchOperand_ParseFail;
3625 Operands.push_back(ARMOperand::CreateMemBarrierOpt((ARM_MB::MemBOpt)Opt, S));
3626 return MatchOperand_Success;
3629 /// parseInstSyncBarrierOptOperand - Try to parse ISB inst sync barrier options.
3630 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3631 parseInstSyncBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3632 SMLoc S = Parser.getTok().getLoc();
3633 const AsmToken &Tok = Parser.getTok();
3636 if (Tok.is(AsmToken::Identifier)) {
3637 StringRef OptStr = Tok.getString();
3639 if (OptStr.equals_lower("sy"))
3642 return MatchOperand_NoMatch;
3644 Parser.Lex(); // Eat identifier token.
3645 } else if (Tok.is(AsmToken::Hash) ||
3646 Tok.is(AsmToken::Dollar) ||
3647 Tok.is(AsmToken::Integer)) {
3648 if (Parser.getTok().isNot(AsmToken::Integer))
3649 Parser.Lex(); // Eat '#' or '$'.
3650 SMLoc Loc = Parser.getTok().getLoc();
3652 const MCExpr *ISBarrierID;
3653 if (getParser().parseExpression(ISBarrierID)) {
3654 Error(Loc, "illegal expression");
3655 return MatchOperand_ParseFail;
3658 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ISBarrierID);
3660 Error(Loc, "constant expression expected");
3661 return MatchOperand_ParseFail;
3664 int Val = CE->getValue();
3666 Error(Loc, "immediate value out of range");
3667 return MatchOperand_ParseFail;
3670 Opt = ARM_ISB::RESERVED_0 + Val;
3672 return MatchOperand_ParseFail;
3674 Operands.push_back(ARMOperand::CreateInstSyncBarrierOpt(
3675 (ARM_ISB::InstSyncBOpt)Opt, S));
3676 return MatchOperand_Success;
3680 /// parseProcIFlagsOperand - Try to parse iflags from CPS instruction.
3681 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3682 parseProcIFlagsOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3683 SMLoc S = Parser.getTok().getLoc();
3684 const AsmToken &Tok = Parser.getTok();
3685 if (!Tok.is(AsmToken::Identifier))
3686 return MatchOperand_NoMatch;
3687 StringRef IFlagsStr = Tok.getString();
3689 // An iflags string of "none" is interpreted to mean that none of the AIF
3690 // bits are set. Not a terribly useful instruction, but a valid encoding.
3691 unsigned IFlags = 0;
3692 if (IFlagsStr != "none") {
3693 for (int i = 0, e = IFlagsStr.size(); i != e; ++i) {
3694 unsigned Flag = StringSwitch<unsigned>(IFlagsStr.substr(i, 1))
3695 .Case("a", ARM_PROC::A)
3696 .Case("i", ARM_PROC::I)
3697 .Case("f", ARM_PROC::F)
3700 // If some specific iflag is already set, it means that some letter is
3701 // present more than once, this is not acceptable.
3702 if (Flag == ~0U || (IFlags & Flag))
3703 return MatchOperand_NoMatch;
3709 Parser.Lex(); // Eat identifier token.
3710 Operands.push_back(ARMOperand::CreateProcIFlags((ARM_PROC::IFlags)IFlags, S));
3711 return MatchOperand_Success;
3714 /// parseMSRMaskOperand - Try to parse mask flags from MSR instruction.
3715 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3716 parseMSRMaskOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3717 SMLoc S = Parser.getTok().getLoc();
3718 const AsmToken &Tok = Parser.getTok();
3719 if (!Tok.is(AsmToken::Identifier))
3720 return MatchOperand_NoMatch;
3721 StringRef Mask = Tok.getString();
3724 // See ARMv6-M 10.1.1
3725 std::string Name = Mask.lower();
3726 unsigned FlagsVal = StringSwitch<unsigned>(Name)
3727 // Note: in the documentation:
3728 // ARM deprecates using MSR APSR without a _<bits> qualifier as an alias
3729 // for MSR APSR_nzcvq.
3730 // but we do make it an alias here. This is so to get the "mask encoding"
3731 // bits correct on MSR APSR writes.
3733 // FIXME: Note the 0xc00 "mask encoding" bits version of the registers
3734 // should really only be allowed when writing a special register. Note
3735 // they get dropped in the MRS instruction reading a special register as
3736 // the SYSm field is only 8 bits.
3738 // FIXME: the _g and _nzcvqg versions are only allowed if the processor
3739 // includes the DSP extension but that is not checked.
3740 .Case("apsr", 0x800)
3741 .Case("apsr_nzcvq", 0x800)
3742 .Case("apsr_g", 0x400)
3743 .Case("apsr_nzcvqg", 0xc00)
3744 .Case("iapsr", 0x801)
3745 .Case("iapsr_nzcvq", 0x801)
3746 .Case("iapsr_g", 0x401)
3747 .Case("iapsr_nzcvqg", 0xc01)
3748 .Case("eapsr", 0x802)
3749 .Case("eapsr_nzcvq", 0x802)
3750 .Case("eapsr_g", 0x402)
3751 .Case("eapsr_nzcvqg", 0xc02)
3752 .Case("xpsr", 0x803)
3753 .Case("xpsr_nzcvq", 0x803)
3754 .Case("xpsr_g", 0x403)
3755 .Case("xpsr_nzcvqg", 0xc03)
3756 .Case("ipsr", 0x805)
3757 .Case("epsr", 0x806)
3758 .Case("iepsr", 0x807)
3761 .Case("primask", 0x810)
3762 .Case("basepri", 0x811)
3763 .Case("basepri_max", 0x812)
3764 .Case("faultmask", 0x813)
3765 .Case("control", 0x814)
3768 if (FlagsVal == ~0U)
3769 return MatchOperand_NoMatch;
3771 if (!hasV7Ops() && FlagsVal >= 0x811 && FlagsVal <= 0x813)
3772 // basepri, basepri_max and faultmask only valid for V7m.
3773 return MatchOperand_NoMatch;
3775 Parser.Lex(); // Eat identifier token.
3776 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3777 return MatchOperand_Success;
3780 // Split spec_reg from flag, example: CPSR_sxf => "CPSR" and "sxf"
3781 size_t Start = 0, Next = Mask.find('_');
3782 StringRef Flags = "";
3783 std::string SpecReg = Mask.slice(Start, Next).lower();
3784 if (Next != StringRef::npos)
3785 Flags = Mask.slice(Next+1, Mask.size());
3787 // FlagsVal contains the complete mask:
3789 // 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3790 unsigned FlagsVal = 0;
3792 if (SpecReg == "apsr") {
3793 FlagsVal = StringSwitch<unsigned>(Flags)
3794 .Case("nzcvq", 0x8) // same as CPSR_f
3795 .Case("g", 0x4) // same as CPSR_s
3796 .Case("nzcvqg", 0xc) // same as CPSR_fs
3799 if (FlagsVal == ~0U) {
3801 return MatchOperand_NoMatch;
3803 FlagsVal = 8; // No flag
3805 } else if (SpecReg == "cpsr" || SpecReg == "spsr") {
3806 // cpsr_all is an alias for cpsr_fc, as is plain cpsr.
3807 if (Flags == "all" || Flags == "")
3809 for (int i = 0, e = Flags.size(); i != e; ++i) {
3810 unsigned Flag = StringSwitch<unsigned>(Flags.substr(i, 1))
3817 // If some specific flag is already set, it means that some letter is
3818 // present more than once, this is not acceptable.
3819 if (FlagsVal == ~0U || (FlagsVal & Flag))
3820 return MatchOperand_NoMatch;
3823 } else // No match for special register.
3824 return MatchOperand_NoMatch;
3826 // Special register without flags is NOT equivalent to "fc" flags.
3827 // NOTE: This is a divergence from gas' behavior. Uncommenting the following
3828 // two lines would enable gas compatibility at the expense of breaking
3834 // Bit 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3835 if (SpecReg == "spsr")
3838 Parser.Lex(); // Eat identifier token.
3839 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3840 return MatchOperand_Success;
3843 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3844 parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands, StringRef Op,
3845 int Low, int High) {
3846 const AsmToken &Tok = Parser.getTok();
3847 if (Tok.isNot(AsmToken::Identifier)) {
3848 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3849 return MatchOperand_ParseFail;
3851 StringRef ShiftName = Tok.getString();
3852 std::string LowerOp = Op.lower();
3853 std::string UpperOp = Op.upper();
3854 if (ShiftName != LowerOp && ShiftName != UpperOp) {
3855 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3856 return MatchOperand_ParseFail;
3858 Parser.Lex(); // Eat shift type token.
3860 // There must be a '#' and a shift amount.
3861 if (Parser.getTok().isNot(AsmToken::Hash) &&
3862 Parser.getTok().isNot(AsmToken::Dollar)) {
3863 Error(Parser.getTok().getLoc(), "'#' expected");
3864 return MatchOperand_ParseFail;
3866 Parser.Lex(); // Eat hash token.
3868 const MCExpr *ShiftAmount;
3869 SMLoc Loc = Parser.getTok().getLoc();
3871 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
3872 Error(Loc, "illegal expression");
3873 return MatchOperand_ParseFail;
3875 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3877 Error(Loc, "constant expression expected");
3878 return MatchOperand_ParseFail;
3880 int Val = CE->getValue();
3881 if (Val < Low || Val > High) {
3882 Error(Loc, "immediate value out of range");
3883 return MatchOperand_ParseFail;
3886 Operands.push_back(ARMOperand::CreateImm(CE, Loc, EndLoc));
3888 return MatchOperand_Success;
3891 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3892 parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3893 const AsmToken &Tok = Parser.getTok();
3894 SMLoc S = Tok.getLoc();
3895 if (Tok.isNot(AsmToken::Identifier)) {
3896 Error(S, "'be' or 'le' operand expected");
3897 return MatchOperand_ParseFail;
3899 int Val = StringSwitch<int>(Tok.getString().lower())
3903 Parser.Lex(); // Eat the token.
3906 Error(S, "'be' or 'le' operand expected");
3907 return MatchOperand_ParseFail;
3909 Operands.push_back(ARMOperand::CreateImm(MCConstantExpr::Create(Val,
3911 S, Tok.getEndLoc()));
3912 return MatchOperand_Success;
3915 /// parseShifterImm - Parse the shifter immediate operand for SSAT/USAT
3916 /// instructions. Legal values are:
3917 /// lsl #n 'n' in [0,31]
3918 /// asr #n 'n' in [1,32]
3919 /// n == 32 encoded as n == 0.
3920 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3921 parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3922 const AsmToken &Tok = Parser.getTok();
3923 SMLoc S = Tok.getLoc();
3924 if (Tok.isNot(AsmToken::Identifier)) {
3925 Error(S, "shift operator 'asr' or 'lsl' expected");
3926 return MatchOperand_ParseFail;
3928 StringRef ShiftName = Tok.getString();
3930 if (ShiftName == "lsl" || ShiftName == "LSL")
3932 else if (ShiftName == "asr" || ShiftName == "ASR")
3935 Error(S, "shift operator 'asr' or 'lsl' expected");
3936 return MatchOperand_ParseFail;
3938 Parser.Lex(); // Eat the operator.
3940 // A '#' and a shift amount.
3941 if (Parser.getTok().isNot(AsmToken::Hash) &&
3942 Parser.getTok().isNot(AsmToken::Dollar)) {
3943 Error(Parser.getTok().getLoc(), "'#' expected");
3944 return MatchOperand_ParseFail;
3946 Parser.Lex(); // Eat hash token.
3947 SMLoc ExLoc = Parser.getTok().getLoc();
3949 const MCExpr *ShiftAmount;
3951 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
3952 Error(ExLoc, "malformed shift expression");
3953 return MatchOperand_ParseFail;
3955 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3957 Error(ExLoc, "shift amount must be an immediate");
3958 return MatchOperand_ParseFail;
3961 int64_t Val = CE->getValue();
3963 // Shift amount must be in [1,32]
3964 if (Val < 1 || Val > 32) {
3965 Error(ExLoc, "'asr' shift amount must be in range [1,32]");
3966 return MatchOperand_ParseFail;
3968 // asr #32 encoded as asr #0, but is not allowed in Thumb2 mode.
3969 if (isThumb() && Val == 32) {
3970 Error(ExLoc, "'asr #32' shift amount not allowed in Thumb mode");
3971 return MatchOperand_ParseFail;
3973 if (Val == 32) Val = 0;
3975 // Shift amount must be in [1,32]
3976 if (Val < 0 || Val > 31) {
3977 Error(ExLoc, "'lsr' shift amount must be in range [0,31]");
3978 return MatchOperand_ParseFail;
3982 Operands.push_back(ARMOperand::CreateShifterImm(isASR, Val, S, EndLoc));
3984 return MatchOperand_Success;
3987 /// parseRotImm - Parse the shifter immediate operand for SXTB/UXTB family
3988 /// of instructions. Legal values are:
3989 /// ror #n 'n' in {0, 8, 16, 24}
3990 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3991 parseRotImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3992 const AsmToken &Tok = Parser.getTok();
3993 SMLoc S = Tok.getLoc();
3994 if (Tok.isNot(AsmToken::Identifier))
3995 return MatchOperand_NoMatch;
3996 StringRef ShiftName = Tok.getString();
3997 if (ShiftName != "ror" && ShiftName != "ROR")
3998 return MatchOperand_NoMatch;
3999 Parser.Lex(); // Eat the operator.
4001 // A '#' and a rotate amount.
4002 if (Parser.getTok().isNot(AsmToken::Hash) &&
4003 Parser.getTok().isNot(AsmToken::Dollar)) {
4004 Error(Parser.getTok().getLoc(), "'#' expected");
4005 return MatchOperand_ParseFail;
4007 Parser.Lex(); // Eat hash token.
4008 SMLoc ExLoc = Parser.getTok().getLoc();
4010 const MCExpr *ShiftAmount;
4012 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
4013 Error(ExLoc, "malformed rotate expression");
4014 return MatchOperand_ParseFail;
4016 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
4018 Error(ExLoc, "rotate amount must be an immediate");
4019 return MatchOperand_ParseFail;
4022 int64_t Val = CE->getValue();
4023 // Shift amount must be in {0, 8, 16, 24} (0 is undocumented extension)
4024 // normally, zero is represented in asm by omitting the rotate operand
4026 if (Val != 8 && Val != 16 && Val != 24 && Val != 0) {
4027 Error(ExLoc, "'ror' rotate amount must be 8, 16, or 24");
4028 return MatchOperand_ParseFail;
4031 Operands.push_back(ARMOperand::CreateRotImm(Val, S, EndLoc));
4033 return MatchOperand_Success;
4036 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4037 parseBitfield(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4038 SMLoc S = Parser.getTok().getLoc();
4039 // The bitfield descriptor is really two operands, the LSB and the width.
4040 if (Parser.getTok().isNot(AsmToken::Hash) &&
4041 Parser.getTok().isNot(AsmToken::Dollar)) {
4042 Error(Parser.getTok().getLoc(), "'#' expected");
4043 return MatchOperand_ParseFail;
4045 Parser.Lex(); // Eat hash token.
4047 const MCExpr *LSBExpr;
4048 SMLoc E = Parser.getTok().getLoc();
4049 if (getParser().parseExpression(LSBExpr)) {
4050 Error(E, "malformed immediate expression");
4051 return MatchOperand_ParseFail;
4053 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LSBExpr);
4055 Error(E, "'lsb' operand must be an immediate");
4056 return MatchOperand_ParseFail;
4059 int64_t LSB = CE->getValue();
4060 // The LSB must be in the range [0,31]
4061 if (LSB < 0 || LSB > 31) {
4062 Error(E, "'lsb' operand must be in the range [0,31]");
4063 return MatchOperand_ParseFail;
4065 E = Parser.getTok().getLoc();
4067 // Expect another immediate operand.
4068 if (Parser.getTok().isNot(AsmToken::Comma)) {
4069 Error(Parser.getTok().getLoc(), "too few operands");
4070 return MatchOperand_ParseFail;
4072 Parser.Lex(); // Eat hash token.
4073 if (Parser.getTok().isNot(AsmToken::Hash) &&
4074 Parser.getTok().isNot(AsmToken::Dollar)) {
4075 Error(Parser.getTok().getLoc(), "'#' expected");
4076 return MatchOperand_ParseFail;
4078 Parser.Lex(); // Eat hash token.
4080 const MCExpr *WidthExpr;
4082 if (getParser().parseExpression(WidthExpr, EndLoc)) {
4083 Error(E, "malformed immediate expression");
4084 return MatchOperand_ParseFail;
4086 CE = dyn_cast<MCConstantExpr>(WidthExpr);
4088 Error(E, "'width' operand must be an immediate");
4089 return MatchOperand_ParseFail;
4092 int64_t Width = CE->getValue();
4093 // The LSB must be in the range [1,32-lsb]
4094 if (Width < 1 || Width > 32 - LSB) {
4095 Error(E, "'width' operand must be in the range [1,32-lsb]");
4096 return MatchOperand_ParseFail;
4099 Operands.push_back(ARMOperand::CreateBitfield(LSB, Width, S, EndLoc));
4101 return MatchOperand_Success;
4104 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4105 parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4106 // Check for a post-index addressing register operand. Specifically:
4107 // postidx_reg := '+' register {, shift}
4108 // | '-' register {, shift}
4109 // | register {, shift}
4111 // This method must return MatchOperand_NoMatch without consuming any tokens
4112 // in the case where there is no match, as other alternatives take other
4114 AsmToken Tok = Parser.getTok();
4115 SMLoc S = Tok.getLoc();
4116 bool haveEaten = false;
4118 if (Tok.is(AsmToken::Plus)) {
4119 Parser.Lex(); // Eat the '+' token.
4121 } else if (Tok.is(AsmToken::Minus)) {
4122 Parser.Lex(); // Eat the '-' token.
4127 SMLoc E = Parser.getTok().getEndLoc();
4128 int Reg = tryParseRegister();
4131 return MatchOperand_NoMatch;
4132 Error(Parser.getTok().getLoc(), "register expected");
4133 return MatchOperand_ParseFail;
4136 ARM_AM::ShiftOpc ShiftTy = ARM_AM::no_shift;
4137 unsigned ShiftImm = 0;
4138 if (Parser.getTok().is(AsmToken::Comma)) {
4139 Parser.Lex(); // Eat the ','.
4140 if (parseMemRegOffsetShift(ShiftTy, ShiftImm))
4141 return MatchOperand_ParseFail;
4143 // FIXME: Only approximates end...may include intervening whitespace.
4144 E = Parser.getTok().getLoc();
4147 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ShiftTy,
4150 return MatchOperand_Success;
4153 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4154 parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4155 // Check for a post-index addressing register operand. Specifically:
4156 // am3offset := '+' register
4163 // This method must return MatchOperand_NoMatch without consuming any tokens
4164 // in the case where there is no match, as other alternatives take other
4166 AsmToken Tok = Parser.getTok();
4167 SMLoc S = Tok.getLoc();
4169 // Do immediates first, as we always parse those if we have a '#'.
4170 if (Parser.getTok().is(AsmToken::Hash) ||
4171 Parser.getTok().is(AsmToken::Dollar)) {
4172 Parser.Lex(); // Eat '#' or '$'.
4173 // Explicitly look for a '-', as we need to encode negative zero
4175 bool isNegative = Parser.getTok().is(AsmToken::Minus);
4176 const MCExpr *Offset;
4178 if (getParser().parseExpression(Offset, E))
4179 return MatchOperand_ParseFail;
4180 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4182 Error(S, "constant expression expected");
4183 return MatchOperand_ParseFail;
4185 // Negative zero is encoded as the flag value INT32_MIN.
4186 int32_t Val = CE->getValue();
4187 if (isNegative && Val == 0)
4191 ARMOperand::CreateImm(MCConstantExpr::Create(Val, getContext()), S, E));
4193 return MatchOperand_Success;
4197 bool haveEaten = false;
4199 if (Tok.is(AsmToken::Plus)) {
4200 Parser.Lex(); // Eat the '+' token.
4202 } else if (Tok.is(AsmToken::Minus)) {
4203 Parser.Lex(); // Eat the '-' token.
4208 Tok = Parser.getTok();
4209 int Reg = tryParseRegister();
4212 return MatchOperand_NoMatch;
4213 Error(Tok.getLoc(), "register expected");
4214 return MatchOperand_ParseFail;
4217 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ARM_AM::no_shift,
4218 0, S, Tok.getEndLoc()));
4220 return MatchOperand_Success;
4223 /// Convert parsed operands to MCInst. Needed here because this instruction
4224 /// only has two register operands, but multiplication is commutative so
4225 /// assemblers should accept both "mul rD, rN, rD" and "mul rD, rD, rN".
4227 cvtThumbMultiply(MCInst &Inst,
4228 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4229 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4230 ((ARMOperand*)Operands[1])->addCCOutOperands(Inst, 1);
4231 // If we have a three-operand form, make sure to set Rn to be the operand
4232 // that isn't the same as Rd.
4234 if (Operands.size() == 6 &&
4235 ((ARMOperand*)Operands[4])->getReg() ==
4236 ((ARMOperand*)Operands[3])->getReg())
4238 ((ARMOperand*)Operands[RegOp])->addRegOperands(Inst, 1);
4239 Inst.addOperand(Inst.getOperand(0));
4240 ((ARMOperand*)Operands[2])->addCondCodeOperands(Inst, 2);
4244 cvtThumbBranches(MCInst &Inst,
4245 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4246 int CondOp = -1, ImmOp = -1;
4247 switch(Inst.getOpcode()) {
4249 case ARM::tBcc: CondOp = 1; ImmOp = 2; break;
4252 case ARM::t2Bcc: CondOp = 1; ImmOp = 3; break;
4254 default: llvm_unreachable("Unexpected instruction in cvtThumbBranches");
4256 // first decide whether or not the branch should be conditional
4257 // by looking at it's location relative to an IT block
4259 // inside an IT block we cannot have any conditional branches. any
4260 // such instructions needs to be converted to unconditional form
4261 switch(Inst.getOpcode()) {
4262 case ARM::tBcc: Inst.setOpcode(ARM::tB); break;
4263 case ARM::t2Bcc: Inst.setOpcode(ARM::t2B); break;
4266 // outside IT blocks we can only have unconditional branches with AL
4267 // condition code or conditional branches with non-AL condition code
4268 unsigned Cond = static_cast<ARMOperand*>(Operands[CondOp])->getCondCode();
4269 switch(Inst.getOpcode()) {
4272 Inst.setOpcode(Cond == ARMCC::AL ? ARM::tB : ARM::tBcc);
4276 Inst.setOpcode(Cond == ARMCC::AL ? ARM::t2B : ARM::t2Bcc);
4281 // now decide on encoding size based on branch target range
4282 switch(Inst.getOpcode()) {
4283 // classify tB as either t2B or t1B based on range of immediate operand
4285 ARMOperand* op = static_cast<ARMOperand*>(Operands[ImmOp]);
4286 if(!op->isSignedOffset<11, 1>() && isThumbTwo())
4287 Inst.setOpcode(ARM::t2B);
4290 // classify tBcc as either t2Bcc or t1Bcc based on range of immediate operand
4292 ARMOperand* op = static_cast<ARMOperand*>(Operands[ImmOp]);
4293 if(!op->isSignedOffset<8, 1>() && isThumbTwo())
4294 Inst.setOpcode(ARM::t2Bcc);
4298 ((ARMOperand*)Operands[ImmOp])->addImmOperands(Inst, 1);
4299 ((ARMOperand*)Operands[CondOp])->addCondCodeOperands(Inst, 2);
4302 /// Parse an ARM memory expression, return false if successful else return true
4303 /// or an error. The first token must be a '[' when called.
4305 parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4307 assert(Parser.getTok().is(AsmToken::LBrac) &&
4308 "Token is not a Left Bracket");
4309 S = Parser.getTok().getLoc();
4310 Parser.Lex(); // Eat left bracket token.
4312 const AsmToken &BaseRegTok = Parser.getTok();
4313 int BaseRegNum = tryParseRegister();
4314 if (BaseRegNum == -1)
4315 return Error(BaseRegTok.getLoc(), "register expected");
4317 // The next token must either be a comma, a colon or a closing bracket.
4318 const AsmToken &Tok = Parser.getTok();
4319 if (!Tok.is(AsmToken::Colon) && !Tok.is(AsmToken::Comma) &&
4320 !Tok.is(AsmToken::RBrac))
4321 return Error(Tok.getLoc(), "malformed memory operand");
4323 if (Tok.is(AsmToken::RBrac)) {
4324 E = Tok.getEndLoc();
4325 Parser.Lex(); // Eat right bracket token.
4327 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0, ARM_AM::no_shift,
4328 0, 0, false, S, E));
4330 // If there's a pre-indexing writeback marker, '!', just add it as a token
4331 // operand. It's rather odd, but syntactically valid.
4332 if (Parser.getTok().is(AsmToken::Exclaim)) {
4333 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4334 Parser.Lex(); // Eat the '!'.
4340 assert((Tok.is(AsmToken::Colon) || Tok.is(AsmToken::Comma)) &&
4341 "Lost colon or comma in memory operand?!");
4342 if (Tok.is(AsmToken::Comma)) {
4343 Parser.Lex(); // Eat the comma.
4346 // If we have a ':', it's an alignment specifier.
4347 if (Parser.getTok().is(AsmToken::Colon)) {
4348 Parser.Lex(); // Eat the ':'.
4349 E = Parser.getTok().getLoc();
4352 if (getParser().parseExpression(Expr))
4355 // The expression has to be a constant. Memory references with relocations
4356 // don't come through here, as they use the <label> forms of the relevant
4358 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4360 return Error (E, "constant expression expected");
4363 switch (CE->getValue()) {
4366 "alignment specifier must be 16, 32, 64, 128, or 256 bits");
4367 case 16: Align = 2; break;
4368 case 32: Align = 4; break;
4369 case 64: Align = 8; break;
4370 case 128: Align = 16; break;
4371 case 256: Align = 32; break;
4374 // Now we should have the closing ']'
4375 if (Parser.getTok().isNot(AsmToken::RBrac))
4376 return Error(Parser.getTok().getLoc(), "']' expected");
4377 E = Parser.getTok().getEndLoc();
4378 Parser.Lex(); // Eat right bracket token.
4380 // Don't worry about range checking the value here. That's handled by
4381 // the is*() predicates.
4382 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0,
4383 ARM_AM::no_shift, 0, Align,
4386 // If there's a pre-indexing writeback marker, '!', just add it as a token
4388 if (Parser.getTok().is(AsmToken::Exclaim)) {
4389 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4390 Parser.Lex(); // Eat the '!'.
4396 // If we have a '#', it's an immediate offset, else assume it's a register
4397 // offset. Be friendly and also accept a plain integer (without a leading
4398 // hash) for gas compatibility.
4399 if (Parser.getTok().is(AsmToken::Hash) ||
4400 Parser.getTok().is(AsmToken::Dollar) ||
4401 Parser.getTok().is(AsmToken::Integer)) {
4402 if (Parser.getTok().isNot(AsmToken::Integer))
4403 Parser.Lex(); // Eat '#' or '$'.
4404 E = Parser.getTok().getLoc();
4406 bool isNegative = getParser().getTok().is(AsmToken::Minus);
4407 const MCExpr *Offset;
4408 if (getParser().parseExpression(Offset))
4411 // The expression has to be a constant. Memory references with relocations
4412 // don't come through here, as they use the <label> forms of the relevant
4414 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4416 return Error (E, "constant expression expected");
4418 // If the constant was #-0, represent it as INT32_MIN.
4419 int32_t Val = CE->getValue();
4420 if (isNegative && Val == 0)
4421 CE = MCConstantExpr::Create(INT32_MIN, getContext());
4423 // Now we should have the closing ']'
4424 if (Parser.getTok().isNot(AsmToken::RBrac))
4425 return Error(Parser.getTok().getLoc(), "']' expected");
4426 E = Parser.getTok().getEndLoc();
4427 Parser.Lex(); // Eat right bracket token.
4429 // Don't worry about range checking the value here. That's handled by
4430 // the is*() predicates.
4431 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, CE, 0,
4432 ARM_AM::no_shift, 0, 0,
4435 // If there's a pre-indexing writeback marker, '!', just add it as a token
4437 if (Parser.getTok().is(AsmToken::Exclaim)) {
4438 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4439 Parser.Lex(); // Eat the '!'.
4445 // The register offset is optionally preceded by a '+' or '-'
4446 bool isNegative = false;
4447 if (Parser.getTok().is(AsmToken::Minus)) {
4449 Parser.Lex(); // Eat the '-'.
4450 } else if (Parser.getTok().is(AsmToken::Plus)) {
4452 Parser.Lex(); // Eat the '+'.
4455 E = Parser.getTok().getLoc();
4456 int OffsetRegNum = tryParseRegister();
4457 if (OffsetRegNum == -1)
4458 return Error(E, "register expected");
4460 // If there's a shift operator, handle it.
4461 ARM_AM::ShiftOpc ShiftType = ARM_AM::no_shift;
4462 unsigned ShiftImm = 0;
4463 if (Parser.getTok().is(AsmToken::Comma)) {
4464 Parser.Lex(); // Eat the ','.
4465 if (parseMemRegOffsetShift(ShiftType, ShiftImm))
4469 // Now we should have the closing ']'
4470 if (Parser.getTok().isNot(AsmToken::RBrac))
4471 return Error(Parser.getTok().getLoc(), "']' expected");
4472 E = Parser.getTok().getEndLoc();
4473 Parser.Lex(); // Eat right bracket token.
4475 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, OffsetRegNum,
4476 ShiftType, ShiftImm, 0, isNegative,
4479 // If there's a pre-indexing writeback marker, '!', just add it as a token
4481 if (Parser.getTok().is(AsmToken::Exclaim)) {
4482 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4483 Parser.Lex(); // Eat the '!'.
4489 /// parseMemRegOffsetShift - one of these two:
4490 /// ( lsl | lsr | asr | ror ) , # shift_amount
4492 /// return true if it parses a shift otherwise it returns false.
4493 bool ARMAsmParser::parseMemRegOffsetShift(ARM_AM::ShiftOpc &St,
4495 SMLoc Loc = Parser.getTok().getLoc();
4496 const AsmToken &Tok = Parser.getTok();
4497 if (Tok.isNot(AsmToken::Identifier))
4499 StringRef ShiftName = Tok.getString();
4500 if (ShiftName == "lsl" || ShiftName == "LSL" ||
4501 ShiftName == "asl" || ShiftName == "ASL")
4503 else if (ShiftName == "lsr" || ShiftName == "LSR")
4505 else if (ShiftName == "asr" || ShiftName == "ASR")
4507 else if (ShiftName == "ror" || ShiftName == "ROR")
4509 else if (ShiftName == "rrx" || ShiftName == "RRX")
4512 return Error(Loc, "illegal shift operator");
4513 Parser.Lex(); // Eat shift type token.
4515 // rrx stands alone.
4517 if (St != ARM_AM::rrx) {
4518 Loc = Parser.getTok().getLoc();
4519 // A '#' and a shift amount.
4520 const AsmToken &HashTok = Parser.getTok();
4521 if (HashTok.isNot(AsmToken::Hash) &&
4522 HashTok.isNot(AsmToken::Dollar))
4523 return Error(HashTok.getLoc(), "'#' expected");
4524 Parser.Lex(); // Eat hash token.
4527 if (getParser().parseExpression(Expr))
4529 // Range check the immediate.
4530 // lsl, ror: 0 <= imm <= 31
4531 // lsr, asr: 0 <= imm <= 32
4532 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4534 return Error(Loc, "shift amount must be an immediate");
4535 int64_t Imm = CE->getValue();
4537 ((St == ARM_AM::lsl || St == ARM_AM::ror) && Imm > 31) ||
4538 ((St == ARM_AM::lsr || St == ARM_AM::asr) && Imm > 32))
4539 return Error(Loc, "immediate shift value out of range");
4540 // If <ShiftTy> #0, turn it into a no_shift.
4543 // For consistency, treat lsr #32 and asr #32 as having immediate value 0.
4552 /// parseFPImm - A floating point immediate expression operand.
4553 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4554 parseFPImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4555 // Anything that can accept a floating point constant as an operand
4556 // needs to go through here, as the regular parseExpression is
4559 // This routine still creates a generic Immediate operand, containing
4560 // a bitcast of the 64-bit floating point value. The various operands
4561 // that accept floats can check whether the value is valid for them
4562 // via the standard is*() predicates.
4564 SMLoc S = Parser.getTok().getLoc();
4566 if (Parser.getTok().isNot(AsmToken::Hash) &&
4567 Parser.getTok().isNot(AsmToken::Dollar))
4568 return MatchOperand_NoMatch;
4570 // Disambiguate the VMOV forms that can accept an FP immediate.
4571 // vmov.f32 <sreg>, #imm
4572 // vmov.f64 <dreg>, #imm
4573 // vmov.f32 <dreg>, #imm @ vector f32x2
4574 // vmov.f32 <qreg>, #imm @ vector f32x4
4576 // There are also the NEON VMOV instructions which expect an
4577 // integer constant. Make sure we don't try to parse an FPImm
4579 // vmov.i{8|16|32|64} <dreg|qreg>, #imm
4580 ARMOperand *TyOp = static_cast<ARMOperand*>(Operands[2]);
4581 bool isVmovf = TyOp->isToken() && (TyOp->getToken() == ".f32" ||
4582 TyOp->getToken() == ".f64");
4583 ARMOperand *Mnemonic = static_cast<ARMOperand*>(Operands[0]);
4584 bool isFconst = Mnemonic->isToken() && (Mnemonic->getToken() == "fconstd" ||
4585 Mnemonic->getToken() == "fconsts");
4586 if (!(isVmovf || isFconst))
4587 return MatchOperand_NoMatch;
4589 Parser.Lex(); // Eat '#' or '$'.
4591 // Handle negation, as that still comes through as a separate token.
4592 bool isNegative = false;
4593 if (Parser.getTok().is(AsmToken::Minus)) {
4597 const AsmToken &Tok = Parser.getTok();
4598 SMLoc Loc = Tok.getLoc();
4599 if (Tok.is(AsmToken::Real) && isVmovf) {
4600 APFloat RealVal(APFloat::IEEEsingle, Tok.getString());
4601 uint64_t IntVal = RealVal.bitcastToAPInt().getZExtValue();
4602 // If we had a '-' in front, toggle the sign bit.
4603 IntVal ^= (uint64_t)isNegative << 31;
4604 Parser.Lex(); // Eat the token.
4605 Operands.push_back(ARMOperand::CreateImm(
4606 MCConstantExpr::Create(IntVal, getContext()),
4607 S, Parser.getTok().getLoc()));
4608 return MatchOperand_Success;
4610 // Also handle plain integers. Instructions which allow floating point
4611 // immediates also allow a raw encoded 8-bit value.
4612 if (Tok.is(AsmToken::Integer) && isFconst) {
4613 int64_t Val = Tok.getIntVal();
4614 Parser.Lex(); // Eat the token.
4615 if (Val > 255 || Val < 0) {
4616 Error(Loc, "encoded floating point value out of range");
4617 return MatchOperand_ParseFail;
4619 float RealVal = ARM_AM::getFPImmFloat(Val);
4620 Val = APFloat(RealVal).bitcastToAPInt().getZExtValue();
4622 Operands.push_back(ARMOperand::CreateImm(
4623 MCConstantExpr::Create(Val, getContext()), S,
4624 Parser.getTok().getLoc()));
4625 return MatchOperand_Success;
4628 Error(Loc, "invalid floating point immediate");
4629 return MatchOperand_ParseFail;
4632 /// Parse a arm instruction operand. For now this parses the operand regardless
4633 /// of the mnemonic.
4634 bool ARMAsmParser::parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
4635 StringRef Mnemonic) {
4638 // Check if the current operand has a custom associated parser, if so, try to
4639 // custom parse the operand, or fallback to the general approach.
4640 OperandMatchResultTy ResTy = MatchOperandParserImpl(Operands, Mnemonic);
4641 if (ResTy == MatchOperand_Success)
4643 // If there wasn't a custom match, try the generic matcher below. Otherwise,
4644 // there was a match, but an error occurred, in which case, just return that
4645 // the operand parsing failed.
4646 if (ResTy == MatchOperand_ParseFail)
4649 switch (getLexer().getKind()) {
4651 Error(Parser.getTok().getLoc(), "unexpected token in operand");
4653 case AsmToken::Identifier: {
4654 // If we've seen a branch mnemonic, the next operand must be a label. This
4655 // is true even if the label is a register name. So "br r1" means branch to
4657 bool ExpectLabel = Mnemonic == "b" || Mnemonic == "bl";
4659 if (!tryParseRegisterWithWriteBack(Operands))
4661 int Res = tryParseShiftRegister(Operands);
4662 if (Res == 0) // success
4664 else if (Res == -1) // irrecoverable error
4666 // If this is VMRS, check for the apsr_nzcv operand.
4667 if (Mnemonic == "vmrs" &&
4668 Parser.getTok().getString().equals_lower("apsr_nzcv")) {
4669 S = Parser.getTok().getLoc();
4671 Operands.push_back(ARMOperand::CreateToken("APSR_nzcv", S));
4676 // Fall though for the Identifier case that is not a register or a
4679 case AsmToken::LParen: // parenthesized expressions like (_strcmp-4)
4680 case AsmToken::Integer: // things like 1f and 2b as a branch targets
4681 case AsmToken::String: // quoted label names.
4682 case AsmToken::Dot: { // . as a branch target
4683 // This was not a register so parse other operands that start with an
4684 // identifier (like labels) as expressions and create them as immediates.
4685 const MCExpr *IdVal;
4686 S = Parser.getTok().getLoc();
4687 if (getParser().parseExpression(IdVal))
4689 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4690 Operands.push_back(ARMOperand::CreateImm(IdVal, S, E));
4693 case AsmToken::LBrac:
4694 return parseMemory(Operands);
4695 case AsmToken::LCurly:
4696 return parseRegisterList(Operands);
4697 case AsmToken::Dollar:
4698 case AsmToken::Hash: {
4699 // #42 -> immediate.
4700 S = Parser.getTok().getLoc();
4703 if (Parser.getTok().isNot(AsmToken::Colon)) {
4704 bool isNegative = Parser.getTok().is(AsmToken::Minus);
4705 const MCExpr *ImmVal;
4706 if (getParser().parseExpression(ImmVal))
4708 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ImmVal);
4710 int32_t Val = CE->getValue();
4711 if (isNegative && Val == 0)
4712 ImmVal = MCConstantExpr::Create(INT32_MIN, getContext());
4714 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4715 Operands.push_back(ARMOperand::CreateImm(ImmVal, S, E));
4717 // There can be a trailing '!' on operands that we want as a separate
4718 // '!' Token operand. Handle that here. For example, the compatibility
4719 // alias for 'srsdb sp!, #imm' is 'srsdb #imm!'.
4720 if (Parser.getTok().is(AsmToken::Exclaim)) {
4721 Operands.push_back(ARMOperand::CreateToken(Parser.getTok().getString(),
4722 Parser.getTok().getLoc()));
4723 Parser.Lex(); // Eat exclaim token
4727 // w/ a ':' after the '#', it's just like a plain ':'.
4730 case AsmToken::Colon: {
4731 // ":lower16:" and ":upper16:" expression prefixes
4732 // FIXME: Check it's an expression prefix,
4733 // e.g. (FOO - :lower16:BAR) isn't legal.
4734 ARMMCExpr::VariantKind RefKind;
4735 if (parsePrefix(RefKind))
4738 const MCExpr *SubExprVal;
4739 if (getParser().parseExpression(SubExprVal))
4742 const MCExpr *ExprVal = ARMMCExpr::Create(RefKind, SubExprVal,
4744 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4745 Operands.push_back(ARMOperand::CreateImm(ExprVal, S, E));
4748 case AsmToken::Equal: {
4749 if (Mnemonic != "ldr") // only parse for ldr pseudo (e.g. ldr r0, =val)
4750 return Error(Parser.getTok().getLoc(), "unexpected token in operand");
4752 Parser.Lex(); // Eat '='
4753 const MCExpr *SubExprVal;
4754 if (getParser().parseExpression(SubExprVal))
4756 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4758 const MCExpr *CPLoc = getTargetStreamer().addConstantPoolEntry(SubExprVal);
4759 Operands.push_back(ARMOperand::CreateImm(CPLoc, S, E));
4765 // parsePrefix - Parse ARM 16-bit relocations expression prefix, i.e.
4766 // :lower16: and :upper16:.
4767 bool ARMAsmParser::parsePrefix(ARMMCExpr::VariantKind &RefKind) {
4768 RefKind = ARMMCExpr::VK_ARM_None;
4770 // consume an optional '#' (GNU compatibility)
4771 if (getLexer().is(AsmToken::Hash))
4774 // :lower16: and :upper16: modifiers
4775 assert(getLexer().is(AsmToken::Colon) && "expected a :");
4776 Parser.Lex(); // Eat ':'
4778 if (getLexer().isNot(AsmToken::Identifier)) {
4779 Error(Parser.getTok().getLoc(), "expected prefix identifier in operand");
4783 StringRef IDVal = Parser.getTok().getIdentifier();
4784 if (IDVal == "lower16") {
4785 RefKind = ARMMCExpr::VK_ARM_LO16;
4786 } else if (IDVal == "upper16") {
4787 RefKind = ARMMCExpr::VK_ARM_HI16;
4789 Error(Parser.getTok().getLoc(), "unexpected prefix in operand");
4794 if (getLexer().isNot(AsmToken::Colon)) {
4795 Error(Parser.getTok().getLoc(), "unexpected token after prefix");
4798 Parser.Lex(); // Eat the last ':'
4802 /// \brief Given a mnemonic, split out possible predication code and carry
4803 /// setting letters to form a canonical mnemonic and flags.
4805 // FIXME: Would be nice to autogen this.
4806 // FIXME: This is a bit of a maze of special cases.
4807 StringRef ARMAsmParser::splitMnemonic(StringRef Mnemonic,
4808 unsigned &PredicationCode,
4810 unsigned &ProcessorIMod,
4811 StringRef &ITMask) {
4812 PredicationCode = ARMCC::AL;
4813 CarrySetting = false;
4816 // Ignore some mnemonics we know aren't predicated forms.
4818 // FIXME: Would be nice to autogen this.
4819 if ((Mnemonic == "movs" && isThumb()) ||
4820 Mnemonic == "teq" || Mnemonic == "vceq" || Mnemonic == "svc" ||
4821 Mnemonic == "mls" || Mnemonic == "smmls" || Mnemonic == "vcls" ||
4822 Mnemonic == "vmls" || Mnemonic == "vnmls" || Mnemonic == "vacge" ||
4823 Mnemonic == "vcge" || Mnemonic == "vclt" || Mnemonic == "vacgt" ||
4824 Mnemonic == "vaclt" || Mnemonic == "vacle" || Mnemonic == "hlt" ||
4825 Mnemonic == "vcgt" || Mnemonic == "vcle" || Mnemonic == "smlal" ||
4826 Mnemonic == "umaal" || Mnemonic == "umlal" || Mnemonic == "vabal" ||
4827 Mnemonic == "vmlal" || Mnemonic == "vpadal" || Mnemonic == "vqdmlal" ||
4828 Mnemonic == "fmuls" || Mnemonic == "vmaxnm" || Mnemonic == "vminnm" ||
4829 Mnemonic == "vcvta" || Mnemonic == "vcvtn" || Mnemonic == "vcvtp" ||
4830 Mnemonic == "vcvtm" || Mnemonic == "vrinta" || Mnemonic == "vrintn" ||
4831 Mnemonic == "vrintp" || Mnemonic == "vrintm" || Mnemonic.startswith("vsel"))
4834 // First, split out any predication code. Ignore mnemonics we know aren't
4835 // predicated but do have a carry-set and so weren't caught above.
4836 if (Mnemonic != "adcs" && Mnemonic != "bics" && Mnemonic != "movs" &&
4837 Mnemonic != "muls" && Mnemonic != "smlals" && Mnemonic != "smulls" &&
4838 Mnemonic != "umlals" && Mnemonic != "umulls" && Mnemonic != "lsls" &&
4839 Mnemonic != "sbcs" && Mnemonic != "rscs") {
4840 unsigned CC = StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2))
4841 .Case("eq", ARMCC::EQ)
4842 .Case("ne", ARMCC::NE)
4843 .Case("hs", ARMCC::HS)
4844 .Case("cs", ARMCC::HS)
4845 .Case("lo", ARMCC::LO)
4846 .Case("cc", ARMCC::LO)
4847 .Case("mi", ARMCC::MI)
4848 .Case("pl", ARMCC::PL)
4849 .Case("vs", ARMCC::VS)
4850 .Case("vc", ARMCC::VC)
4851 .Case("hi", ARMCC::HI)
4852 .Case("ls", ARMCC::LS)
4853 .Case("ge", ARMCC::GE)
4854 .Case("lt", ARMCC::LT)
4855 .Case("gt", ARMCC::GT)
4856 .Case("le", ARMCC::LE)
4857 .Case("al", ARMCC::AL)
4860 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 2);
4861 PredicationCode = CC;
4865 // Next, determine if we have a carry setting bit. We explicitly ignore all
4866 // the instructions we know end in 's'.
4867 if (Mnemonic.endswith("s") &&
4868 !(Mnemonic == "cps" || Mnemonic == "mls" ||
4869 Mnemonic == "mrs" || Mnemonic == "smmls" || Mnemonic == "vabs" ||
4870 Mnemonic == "vcls" || Mnemonic == "vmls" || Mnemonic == "vmrs" ||
4871 Mnemonic == "vnmls" || Mnemonic == "vqabs" || Mnemonic == "vrecps" ||
4872 Mnemonic == "vrsqrts" || Mnemonic == "srs" || Mnemonic == "flds" ||
4873 Mnemonic == "fmrs" || Mnemonic == "fsqrts" || Mnemonic == "fsubs" ||
4874 Mnemonic == "fsts" || Mnemonic == "fcpys" || Mnemonic == "fdivs" ||
4875 Mnemonic == "fmuls" || Mnemonic == "fcmps" || Mnemonic == "fcmpzs" ||
4876 Mnemonic == "vfms" || Mnemonic == "vfnms" || Mnemonic == "fconsts" ||
4877 (Mnemonic == "movs" && isThumb()))) {
4878 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1);
4879 CarrySetting = true;
4882 // The "cps" instruction can have a interrupt mode operand which is glued into
4883 // the mnemonic. Check if this is the case, split it and parse the imod op
4884 if (Mnemonic.startswith("cps")) {
4885 // Split out any imod code.
4887 StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2, 2))
4888 .Case("ie", ARM_PROC::IE)
4889 .Case("id", ARM_PROC::ID)
4892 Mnemonic = Mnemonic.slice(0, Mnemonic.size()-2);
4893 ProcessorIMod = IMod;
4897 // The "it" instruction has the condition mask on the end of the mnemonic.
4898 if (Mnemonic.startswith("it")) {
4899 ITMask = Mnemonic.slice(2, Mnemonic.size());
4900 Mnemonic = Mnemonic.slice(0, 2);
4906 /// \brief Given a canonical mnemonic, determine if the instruction ever allows
4907 /// inclusion of carry set or predication code operands.
4909 // FIXME: It would be nice to autogen this.
4911 getMnemonicAcceptInfo(StringRef Mnemonic, StringRef FullInst,
4912 bool &CanAcceptCarrySet, bool &CanAcceptPredicationCode) {
4913 if (Mnemonic == "and" || Mnemonic == "lsl" || Mnemonic == "lsr" ||
4914 Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" ||
4915 Mnemonic == "add" || Mnemonic == "adc" ||
4916 Mnemonic == "mul" || Mnemonic == "bic" || Mnemonic == "asr" ||
4917 Mnemonic == "orr" || Mnemonic == "mvn" ||
4918 Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
4919 Mnemonic == "sbc" || Mnemonic == "eor" || Mnemonic == "neg" ||
4920 Mnemonic == "vfm" || Mnemonic == "vfnm" ||
4921 (!isThumb() && (Mnemonic == "smull" || Mnemonic == "mov" ||
4922 Mnemonic == "mla" || Mnemonic == "smlal" ||
4923 Mnemonic == "umlal" || Mnemonic == "umull"))) {
4924 CanAcceptCarrySet = true;
4926 CanAcceptCarrySet = false;
4928 if (Mnemonic == "bkpt" || Mnemonic == "cbnz" || Mnemonic == "setend" ||
4929 Mnemonic == "cps" || Mnemonic == "it" || Mnemonic == "cbz" ||
4930 Mnemonic == "trap" || Mnemonic == "hlt" || Mnemonic.startswith("crc32") ||
4931 Mnemonic.startswith("cps") || Mnemonic.startswith("vsel") ||
4932 Mnemonic == "vmaxnm" || Mnemonic == "vminnm" || Mnemonic == "vcvta" ||
4933 Mnemonic == "vcvtn" || Mnemonic == "vcvtp" || Mnemonic == "vcvtm" ||
4934 Mnemonic == "vrinta" || Mnemonic == "vrintn" || Mnemonic == "vrintp" ||
4935 Mnemonic == "vrintm" || Mnemonic.startswith("aes") ||
4936 Mnemonic.startswith("sha1") || Mnemonic.startswith("sha256") ||
4937 (FullInst.startswith("vmull") && FullInst.endswith(".p64"))) {
4938 // These mnemonics are never predicable
4939 CanAcceptPredicationCode = false;
4940 } else if (!isThumb()) {
4941 // Some instructions are only predicable in Thumb mode
4942 CanAcceptPredicationCode
4943 = Mnemonic != "cdp2" && Mnemonic != "clrex" && Mnemonic != "mcr2" &&
4944 Mnemonic != "mcrr2" && Mnemonic != "mrc2" && Mnemonic != "mrrc2" &&
4945 Mnemonic != "dmb" && Mnemonic != "dsb" && Mnemonic != "isb" &&
4946 Mnemonic != "pld" && Mnemonic != "pli" && Mnemonic != "pldw" &&
4947 Mnemonic != "ldc2" && Mnemonic != "ldc2l" &&
4948 Mnemonic != "stc2" && Mnemonic != "stc2l" &&
4949 !Mnemonic.startswith("rfe") && !Mnemonic.startswith("srs");
4950 } else if (isThumbOne()) {
4952 CanAcceptPredicationCode = Mnemonic != "movs";
4954 CanAcceptPredicationCode = Mnemonic != "nop" && Mnemonic != "movs";
4956 CanAcceptPredicationCode = true;
4959 bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
4960 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4961 // FIXME: This is all horribly hacky. We really need a better way to deal
4962 // with optional operands like this in the matcher table.
4964 // The 'mov' mnemonic is special. One variant has a cc_out operand, while
4965 // another does not. Specifically, the MOVW instruction does not. So we
4966 // special case it here and remove the defaulted (non-setting) cc_out
4967 // operand if that's the instruction we're trying to match.
4969 // We do this as post-processing of the explicit operands rather than just
4970 // conditionally adding the cc_out in the first place because we need
4971 // to check the type of the parsed immediate operand.
4972 if (Mnemonic == "mov" && Operands.size() > 4 && !isThumb() &&
4973 !static_cast<ARMOperand*>(Operands[4])->isARMSOImm() &&
4974 static_cast<ARMOperand*>(Operands[4])->isImm0_65535Expr() &&
4975 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4978 // Register-register 'add' for thumb does not have a cc_out operand
4979 // when there are only two register operands.
4980 if (isThumb() && Mnemonic == "add" && Operands.size() == 5 &&
4981 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4982 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4983 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4985 // Register-register 'add' for thumb does not have a cc_out operand
4986 // when it's an ADD Rdm, SP, {Rdm|#imm0_255} instruction. We do
4987 // have to check the immediate range here since Thumb2 has a variant
4988 // that can handle a different range and has a cc_out operand.
4989 if (((isThumb() && Mnemonic == "add") ||
4990 (isThumbTwo() && Mnemonic == "sub")) &&
4991 Operands.size() == 6 &&
4992 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4993 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4994 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::SP &&
4995 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4996 ((Mnemonic == "add" &&static_cast<ARMOperand*>(Operands[5])->isReg()) ||
4997 static_cast<ARMOperand*>(Operands[5])->isImm0_1020s4()))
4999 // For Thumb2, add/sub immediate does not have a cc_out operand for the
5000 // imm0_4095 variant. That's the least-preferred variant when
5001 // selecting via the generic "add" mnemonic, so to know that we
5002 // should remove the cc_out operand, we have to explicitly check that
5003 // it's not one of the other variants. Ugh.
5004 if (isThumbTwo() && (Mnemonic == "add" || Mnemonic == "sub") &&
5005 Operands.size() == 6 &&
5006 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5007 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5008 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5009 // Nest conditions rather than one big 'if' statement for readability.
5011 // If both registers are low, we're in an IT block, and the immediate is
5012 // in range, we should use encoding T1 instead, which has a cc_out.
5014 isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
5015 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) &&
5016 static_cast<ARMOperand*>(Operands[5])->isImm0_7())
5018 // Check against T3. If the second register is the PC, this is an
5019 // alternate form of ADR, which uses encoding T4, so check for that too.
5020 if (static_cast<ARMOperand*>(Operands[4])->getReg() != ARM::PC &&
5021 static_cast<ARMOperand*>(Operands[5])->isT2SOImm())
5024 // Otherwise, we use encoding T4, which does not have a cc_out
5029 // The thumb2 multiply instruction doesn't have a CCOut register, so
5030 // if we have a "mul" mnemonic in Thumb mode, check if we'll be able to
5031 // use the 16-bit encoding or not.
5032 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 6 &&
5033 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5034 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5035 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5036 static_cast<ARMOperand*>(Operands[5])->isReg() &&
5037 // If the registers aren't low regs, the destination reg isn't the
5038 // same as one of the source regs, or the cc_out operand is zero
5039 // outside of an IT block, we have to use the 32-bit encoding, so
5040 // remove the cc_out operand.
5041 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
5042 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
5043 !isARMLowRegister(static_cast<ARMOperand*>(Operands[5])->getReg()) ||
5045 (static_cast<ARMOperand*>(Operands[3])->getReg() !=
5046 static_cast<ARMOperand*>(Operands[5])->getReg() &&
5047 static_cast<ARMOperand*>(Operands[3])->getReg() !=
5048 static_cast<ARMOperand*>(Operands[4])->getReg())))
5051 // Also check the 'mul' syntax variant that doesn't specify an explicit
5052 // destination register.
5053 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 5 &&
5054 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5055 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5056 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5057 // If the registers aren't low regs or the cc_out operand is zero
5058 // outside of an IT block, we have to use the 32-bit encoding, so
5059 // remove the cc_out operand.
5060 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
5061 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
5067 // Register-register 'add/sub' for thumb does not have a cc_out operand
5068 // when it's an ADD/SUB SP, #imm. Be lenient on count since there's also
5069 // the "add/sub SP, SP, #imm" version. If the follow-up operands aren't
5070 // right, this will result in better diagnostics (which operand is off)
5072 if (isThumb() && (Mnemonic == "add" || Mnemonic == "sub") &&
5073 (Operands.size() == 5 || Operands.size() == 6) &&
5074 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5075 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::SP &&
5076 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5077 (static_cast<ARMOperand*>(Operands[4])->isImm() ||
5078 (Operands.size() == 6 &&
5079 static_cast<ARMOperand*>(Operands[5])->isImm())))
5085 bool ARMAsmParser::shouldOmitPredicateOperand(
5086 StringRef Mnemonic, SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
5087 // VRINT{Z, R, X} have a predicate operand in VFP, but not in NEON
5088 unsigned RegIdx = 3;
5089 if ((Mnemonic == "vrintz" || Mnemonic == "vrintx" || Mnemonic == "vrintr") &&
5090 static_cast<ARMOperand *>(Operands[2])->getToken() == ".f32") {
5091 if (static_cast<ARMOperand *>(Operands[3])->isToken() &&
5092 static_cast<ARMOperand *>(Operands[3])->getToken() == ".f32")
5095 if (static_cast<ARMOperand *>(Operands[RegIdx])->isReg() &&
5096 (ARMMCRegisterClasses[ARM::DPRRegClassID]
5097 .contains(static_cast<ARMOperand *>(Operands[RegIdx])->getReg()) ||
5098 ARMMCRegisterClasses[ARM::QPRRegClassID]
5099 .contains(static_cast<ARMOperand *>(Operands[RegIdx])->getReg())))
5105 static bool isDataTypeToken(StringRef Tok) {
5106 return Tok == ".8" || Tok == ".16" || Tok == ".32" || Tok == ".64" ||
5107 Tok == ".i8" || Tok == ".i16" || Tok == ".i32" || Tok == ".i64" ||
5108 Tok == ".u8" || Tok == ".u16" || Tok == ".u32" || Tok == ".u64" ||
5109 Tok == ".s8" || Tok == ".s16" || Tok == ".s32" || Tok == ".s64" ||
5110 Tok == ".p8" || Tok == ".p16" || Tok == ".f32" || Tok == ".f64" ||
5111 Tok == ".f" || Tok == ".d";
5114 // FIXME: This bit should probably be handled via an explicit match class
5115 // in the .td files that matches the suffix instead of having it be
5116 // a literal string token the way it is now.
5117 static bool doesIgnoreDataTypeSuffix(StringRef Mnemonic, StringRef DT) {
5118 return Mnemonic.startswith("vldm") || Mnemonic.startswith("vstm");
5120 static void applyMnemonicAliases(StringRef &Mnemonic, unsigned Features,
5121 unsigned VariantID);
5123 static bool RequiresVFPRegListValidation(StringRef Inst,
5124 bool &AcceptSinglePrecisionOnly,
5125 bool &AcceptDoublePrecisionOnly) {
5126 if (Inst.size() < 7)
5129 if (Inst.startswith("fldm") || Inst.startswith("fstm")) {
5130 StringRef AddressingMode = Inst.substr(4, 2);
5131 if (AddressingMode == "ia" || AddressingMode == "db" ||
5132 AddressingMode == "ea" || AddressingMode == "fd") {
5133 AcceptSinglePrecisionOnly = Inst[6] == 's';
5134 AcceptDoublePrecisionOnly = Inst[6] == 'd' || Inst[6] == 'x';
5142 /// Parse an arm instruction mnemonic followed by its operands.
5143 bool ARMAsmParser::ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
5145 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5146 // FIXME: Can this be done via tablegen in some fashion?
5147 bool RequireVFPRegisterListCheck;
5148 bool AcceptSinglePrecisionOnly;
5149 bool AcceptDoublePrecisionOnly;
5150 RequireVFPRegisterListCheck =
5151 RequiresVFPRegListValidation(Name, AcceptSinglePrecisionOnly,
5152 AcceptDoublePrecisionOnly);
5154 // Apply mnemonic aliases before doing anything else, as the destination
5155 // mnemonic may include suffices and we want to handle them normally.
5156 // The generic tblgen'erated code does this later, at the start of
5157 // MatchInstructionImpl(), but that's too late for aliases that include
5158 // any sort of suffix.
5159 unsigned AvailableFeatures = getAvailableFeatures();
5160 unsigned AssemblerDialect = getParser().getAssemblerDialect();
5161 applyMnemonicAliases(Name, AvailableFeatures, AssemblerDialect);
5163 // First check for the ARM-specific .req directive.
5164 if (Parser.getTok().is(AsmToken::Identifier) &&
5165 Parser.getTok().getIdentifier() == ".req") {
5166 parseDirectiveReq(Name, NameLoc);
5167 // We always return 'error' for this, as we're done with this
5168 // statement and don't need to match the 'instruction."
5172 // Create the leading tokens for the mnemonic, split by '.' characters.
5173 size_t Start = 0, Next = Name.find('.');
5174 StringRef Mnemonic = Name.slice(Start, Next);
5176 // Split out the predication code and carry setting flag from the mnemonic.
5177 unsigned PredicationCode;
5178 unsigned ProcessorIMod;
5181 Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
5182 ProcessorIMod, ITMask);
5184 // In Thumb1, only the branch (B) instruction can be predicated.
5185 if (isThumbOne() && PredicationCode != ARMCC::AL && Mnemonic != "b") {
5186 Parser.eatToEndOfStatement();
5187 return Error(NameLoc, "conditional execution not supported in Thumb1");
5190 Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
5192 // Handle the IT instruction ITMask. Convert it to a bitmask. This
5193 // is the mask as it will be for the IT encoding if the conditional
5194 // encoding has a '1' as it's bit0 (i.e. 't' ==> '1'). In the case
5195 // where the conditional bit0 is zero, the instruction post-processing
5196 // will adjust the mask accordingly.
5197 if (Mnemonic == "it") {
5198 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + 2);
5199 if (ITMask.size() > 3) {
5200 Parser.eatToEndOfStatement();
5201 return Error(Loc, "too many conditions on IT instruction");
5204 for (unsigned i = ITMask.size(); i != 0; --i) {
5205 char pos = ITMask[i - 1];
5206 if (pos != 't' && pos != 'e') {
5207 Parser.eatToEndOfStatement();
5208 return Error(Loc, "illegal IT block condition mask '" + ITMask + "'");
5211 if (ITMask[i - 1] == 't')
5214 Operands.push_back(ARMOperand::CreateITMask(Mask, Loc));
5217 // FIXME: This is all a pretty gross hack. We should automatically handle
5218 // optional operands like this via tblgen.
5220 // Next, add the CCOut and ConditionCode operands, if needed.
5222 // For mnemonics which can ever incorporate a carry setting bit or predication
5223 // code, our matching model involves us always generating CCOut and
5224 // ConditionCode operands to match the mnemonic "as written" and then we let
5225 // the matcher deal with finding the right instruction or generating an
5226 // appropriate error.
5227 bool CanAcceptCarrySet, CanAcceptPredicationCode;
5228 getMnemonicAcceptInfo(Mnemonic, Name, CanAcceptCarrySet, CanAcceptPredicationCode);
5230 // If we had a carry-set on an instruction that can't do that, issue an
5232 if (!CanAcceptCarrySet && CarrySetting) {
5233 Parser.eatToEndOfStatement();
5234 return Error(NameLoc, "instruction '" + Mnemonic +
5235 "' can not set flags, but 's' suffix specified");
5237 // If we had a predication code on an instruction that can't do that, issue an
5239 if (!CanAcceptPredicationCode && PredicationCode != ARMCC::AL) {
5240 Parser.eatToEndOfStatement();
5241 return Error(NameLoc, "instruction '" + Mnemonic +
5242 "' is not predicable, but condition code specified");
5245 // Add the carry setting operand, if necessary.
5246 if (CanAcceptCarrySet) {
5247 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size());
5248 Operands.push_back(ARMOperand::CreateCCOut(CarrySetting ? ARM::CPSR : 0,
5252 // Add the predication code operand, if necessary.
5253 if (CanAcceptPredicationCode) {
5254 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size() +
5256 Operands.push_back(ARMOperand::CreateCondCode(
5257 ARMCC::CondCodes(PredicationCode), Loc));
5260 // Add the processor imod operand, if necessary.
5261 if (ProcessorIMod) {
5262 Operands.push_back(ARMOperand::CreateImm(
5263 MCConstantExpr::Create(ProcessorIMod, getContext()),
5267 // Add the remaining tokens in the mnemonic.
5268 while (Next != StringRef::npos) {
5270 Next = Name.find('.', Start + 1);
5271 StringRef ExtraToken = Name.slice(Start, Next);
5273 // Some NEON instructions have an optional datatype suffix that is
5274 // completely ignored. Check for that.
5275 if (isDataTypeToken(ExtraToken) &&
5276 doesIgnoreDataTypeSuffix(Mnemonic, ExtraToken))
5279 // For for ARM mode generate an error if the .n qualifier is used.
5280 if (ExtraToken == ".n" && !isThumb()) {
5281 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5282 Parser.eatToEndOfStatement();
5283 return Error(Loc, "instruction with .n (narrow) qualifier not allowed in "
5287 // The .n qualifier is always discarded as that is what the tables
5288 // and matcher expect. In ARM mode the .w qualifier has no effect,
5289 // so discard it to avoid errors that can be caused by the matcher.
5290 if (ExtraToken != ".n" && (isThumb() || ExtraToken != ".w")) {
5291 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5292 Operands.push_back(ARMOperand::CreateToken(ExtraToken, Loc));
5296 // Read the remaining operands.
5297 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5298 // Read the first operand.
5299 if (parseOperand(Operands, Mnemonic)) {
5300 Parser.eatToEndOfStatement();
5304 while (getLexer().is(AsmToken::Comma)) {
5305 Parser.Lex(); // Eat the comma.
5307 // Parse and remember the operand.
5308 if (parseOperand(Operands, Mnemonic)) {
5309 Parser.eatToEndOfStatement();
5315 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5316 SMLoc Loc = getLexer().getLoc();
5317 Parser.eatToEndOfStatement();
5318 return Error(Loc, "unexpected token in argument list");
5321 Parser.Lex(); // Consume the EndOfStatement
5323 if (RequireVFPRegisterListCheck) {
5324 ARMOperand *Op = static_cast<ARMOperand*>(Operands.back());
5325 if (AcceptSinglePrecisionOnly && !Op->isSPRRegList())
5326 return Error(Op->getStartLoc(),
5327 "VFP/Neon single precision register expected");
5328 if (AcceptDoublePrecisionOnly && !Op->isDPRRegList())
5329 return Error(Op->getStartLoc(),
5330 "VFP/Neon double precision register expected");
5333 // Some instructions, mostly Thumb, have forms for the same mnemonic that
5334 // do and don't have a cc_out optional-def operand. With some spot-checks
5335 // of the operand list, we can figure out which variant we're trying to
5336 // parse and adjust accordingly before actually matching. We shouldn't ever
5337 // try to remove a cc_out operand that was explicitly set on the the
5338 // mnemonic, of course (CarrySetting == true). Reason number #317 the
5339 // table driven matcher doesn't fit well with the ARM instruction set.
5340 if (!CarrySetting && shouldOmitCCOutOperand(Mnemonic, Operands)) {
5341 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5342 Operands.erase(Operands.begin() + 1);
5346 // Some instructions have the same mnemonic, but don't always
5347 // have a predicate. Distinguish them here and delete the
5348 // predicate if needed.
5349 if (shouldOmitPredicateOperand(Mnemonic, Operands)) {
5350 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5351 Operands.erase(Operands.begin() + 1);
5355 // ARM mode 'blx' need special handling, as the register operand version
5356 // is predicable, but the label operand version is not. So, we can't rely
5357 // on the Mnemonic based checking to correctly figure out when to put
5358 // a k_CondCode operand in the list. If we're trying to match the label
5359 // version, remove the k_CondCode operand here.
5360 if (!isThumb() && Mnemonic == "blx" && Operands.size() == 3 &&
5361 static_cast<ARMOperand*>(Operands[2])->isImm()) {
5362 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5363 Operands.erase(Operands.begin() + 1);
5367 // Adjust operands of ldrexd/strexd to MCK_GPRPair.
5368 // ldrexd/strexd require even/odd GPR pair. To enforce this constraint,
5369 // a single GPRPair reg operand is used in the .td file to replace the two
5370 // GPRs. However, when parsing from asm, the two GRPs cannot be automatically
5371 // expressed as a GPRPair, so we have to manually merge them.
5372 // FIXME: We would really like to be able to tablegen'erate this.
5373 if (!isThumb() && Operands.size() > 4 &&
5374 (Mnemonic == "ldrexd" || Mnemonic == "strexd" || Mnemonic == "ldaexd" ||
5375 Mnemonic == "stlexd")) {
5376 bool isLoad = (Mnemonic == "ldrexd" || Mnemonic == "ldaexd");
5377 unsigned Idx = isLoad ? 2 : 3;
5378 ARMOperand* Op1 = static_cast<ARMOperand*>(Operands[Idx]);
5379 ARMOperand* Op2 = static_cast<ARMOperand*>(Operands[Idx+1]);
5381 const MCRegisterClass& MRC = MRI->getRegClass(ARM::GPRRegClassID);
5382 // Adjust only if Op1 and Op2 are GPRs.
5383 if (Op1->isReg() && Op2->isReg() && MRC.contains(Op1->getReg()) &&
5384 MRC.contains(Op2->getReg())) {
5385 unsigned Reg1 = Op1->getReg();
5386 unsigned Reg2 = Op2->getReg();
5387 unsigned Rt = MRI->getEncodingValue(Reg1);
5388 unsigned Rt2 = MRI->getEncodingValue(Reg2);
5390 // Rt2 must be Rt + 1 and Rt must be even.
5391 if (Rt + 1 != Rt2 || (Rt & 1)) {
5392 Error(Op2->getStartLoc(), isLoad ?
5393 "destination operands must be sequential" :
5394 "source operands must be sequential");
5397 unsigned NewReg = MRI->getMatchingSuperReg(Reg1, ARM::gsub_0,
5398 &(MRI->getRegClass(ARM::GPRPairRegClassID)));
5399 Operands.erase(Operands.begin() + Idx, Operands.begin() + Idx + 2);
5400 Operands.insert(Operands.begin() + Idx, ARMOperand::CreateReg(
5401 NewReg, Op1->getStartLoc(), Op2->getEndLoc()));
5407 // GNU Assembler extension (compatibility)
5408 if ((Mnemonic == "ldrd" || Mnemonic == "strd") && !isThumb() &&
5409 Operands.size() == 4) {
5410 ARMOperand *Op = static_cast<ARMOperand *>(Operands[2]);
5411 assert(Op->isReg() && "expected register argument");
5412 assert(MRI->getMatchingSuperReg(Op->getReg(), ARM::gsub_0,
5413 &MRI->getRegClass(ARM::GPRPairRegClassID))
5414 && "expected register pair");
5415 Operands.insert(Operands.begin() + 3,
5416 ARMOperand::CreateReg(Op->getReg() + 1, Op->getStartLoc(),
5420 // FIXME: As said above, this is all a pretty gross hack. This instruction
5421 // does not fit with other "subs" and tblgen.
5422 // Adjust operands of B9.3.19 SUBS PC, LR, #imm (Thumb2) system instruction
5423 // so the Mnemonic is the original name "subs" and delete the predicate
5424 // operand so it will match the table entry.
5425 if (isThumbTwo() && Mnemonic == "sub" && Operands.size() == 6 &&
5426 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5427 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::PC &&
5428 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5429 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::LR &&
5430 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5431 ARMOperand *Op0 = static_cast<ARMOperand*>(Operands[0]);
5432 Operands.erase(Operands.begin());
5434 Operands.insert(Operands.begin(), ARMOperand::CreateToken(Name, NameLoc));
5436 ARMOperand *Op1 = static_cast<ARMOperand*>(Operands[1]);
5437 Operands.erase(Operands.begin() + 1);
5443 // Validate context-sensitive operand constraints.
5445 // return 'true' if register list contains non-low GPR registers,
5446 // 'false' otherwise. If Reg is in the register list or is HiReg, set
5447 // 'containsReg' to true.
5448 static bool checkLowRegisterList(MCInst Inst, unsigned OpNo, unsigned Reg,
5449 unsigned HiReg, bool &containsReg) {
5450 containsReg = false;
5451 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5452 unsigned OpReg = Inst.getOperand(i).getReg();
5455 // Anything other than a low register isn't legal here.
5456 if (!isARMLowRegister(OpReg) && (!HiReg || OpReg != HiReg))
5462 // Check if the specified regisgter is in the register list of the inst,
5463 // starting at the indicated operand number.
5464 static bool listContainsReg(MCInst &Inst, unsigned OpNo, unsigned Reg) {
5465 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5466 unsigned OpReg = Inst.getOperand(i).getReg();
5473 // Return true if instruction has the interesting property of being
5474 // allowed in IT blocks, but not being predicable.
5475 static bool instIsBreakpoint(const MCInst &Inst) {
5476 return Inst.getOpcode() == ARM::tBKPT ||
5477 Inst.getOpcode() == ARM::BKPT ||
5478 Inst.getOpcode() == ARM::tHLT ||
5479 Inst.getOpcode() == ARM::HLT;
5483 // FIXME: We would really like to be able to tablegen'erate this.
5485 validateInstruction(MCInst &Inst,
5486 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5487 const MCInstrDesc &MCID = MII.get(Inst.getOpcode());
5488 SMLoc Loc = Operands[0]->getStartLoc();
5490 // Check the IT block state first.
5491 // NOTE: BKPT and HLT instructions have the interesting property of being
5492 // allowed in IT blocks, but not being predicable. They just always execute.
5493 if (inITBlock() && !instIsBreakpoint(Inst)) {
5495 if (ITState.FirstCond)
5496 ITState.FirstCond = false;
5498 Bit = (ITState.Mask >> (5 - ITState.CurPosition)) & 1;
5499 // The instruction must be predicable.
5500 if (!MCID.isPredicable())
5501 return Error(Loc, "instructions in IT block must be predicable");
5502 unsigned Cond = Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm();
5503 unsigned ITCond = Bit ? ITState.Cond :
5504 ARMCC::getOppositeCondition(ITState.Cond);
5505 if (Cond != ITCond) {
5506 // Find the condition code Operand to get its SMLoc information.
5508 for (unsigned I = 1; I < Operands.size(); ++I)
5509 if (static_cast<ARMOperand*>(Operands[I])->isCondCode())
5510 CondLoc = Operands[I]->getStartLoc();
5511 return Error(CondLoc, "incorrect condition in IT block; got '" +
5512 StringRef(ARMCondCodeToString(ARMCC::CondCodes(Cond))) +
5513 "', but expected '" +
5514 ARMCondCodeToString(ARMCC::CondCodes(ITCond)) + "'");
5516 // Check for non-'al' condition codes outside of the IT block.
5517 } else if (isThumbTwo() && MCID.isPredicable() &&
5518 Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm() !=
5519 ARMCC::AL && Inst.getOpcode() != ARM::tBcc &&
5520 Inst.getOpcode() != ARM::t2Bcc)
5521 return Error(Loc, "predicated instructions must be in IT block");
5523 const unsigned Opcode = Inst.getOpcode();
5527 case ARM::LDRD_POST: {
5528 const unsigned RtReg = Inst.getOperand(0).getReg();
5531 if (RtReg == ARM::LR)
5532 return Error(Operands[3]->getStartLoc(),
5535 const unsigned Rt = MRI->getEncodingValue(RtReg);
5536 // Rt must be even-numbered.
5538 return Error(Operands[3]->getStartLoc(),
5539 "Rt must be even-numbered");
5541 // Rt2 must be Rt + 1.
5542 const unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5544 return Error(Operands[3]->getStartLoc(),
5545 "destination operands must be sequential");
5547 if (Opcode == ARM::LDRD_PRE || Opcode == ARM::LDRD_POST) {
5548 const unsigned Rn = MRI->getEncodingValue(Inst.getOperand(3).getReg());
5549 // For addressing modes with writeback, the base register needs to be
5550 // different from the destination registers.
5551 if (Rn == Rt || Rn == Rt2)
5552 return Error(Operands[3]->getStartLoc(),
5553 "base register needs to be different from destination "
5560 case ARM::t2LDRD_PRE:
5561 case ARM::t2LDRD_POST: {
5562 // Rt2 must be different from Rt.
5563 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(0).getReg());
5564 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5566 return Error(Operands[3]->getStartLoc(),
5567 "destination operands can't be identical");
5571 // Rt2 must be Rt + 1.
5572 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(0).getReg());
5573 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5575 return Error(Operands[3]->getStartLoc(),
5576 "source operands must be sequential");
5580 case ARM::STRD_POST: {
5581 // Rt2 must be Rt + 1.
5582 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5583 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(2).getReg());
5585 return Error(Operands[3]->getStartLoc(),
5586 "source operands must be sequential");
5591 // Width must be in range [1, 32-lsb].
5592 unsigned LSB = Inst.getOperand(2).getImm();
5593 unsigned Widthm1 = Inst.getOperand(3).getImm();
5594 if (Widthm1 >= 32 - LSB)
5595 return Error(Operands[5]->getStartLoc(),
5596 "bitfield width must be in range [1,32-lsb]");
5599 // Notionally handles ARM::tLDMIA_UPD too.
5601 // If we're parsing Thumb2, the .w variant is available and handles
5602 // most cases that are normally illegal for a Thumb1 LDM instruction.
5603 // We'll make the transformation in processInstruction() if necessary.
5605 // Thumb LDM instructions are writeback iff the base register is not
5606 // in the register list.
5607 unsigned Rn = Inst.getOperand(0).getReg();
5608 bool HasWritebackToken =
5609 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
5610 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
5611 bool ListContainsBase;
5612 if (checkLowRegisterList(Inst, 3, Rn, 0, ListContainsBase) && !isThumbTwo())
5613 return Error(Operands[3 + HasWritebackToken]->getStartLoc(),
5614 "registers must be in range r0-r7");
5615 // If we should have writeback, then there should be a '!' token.
5616 if (!ListContainsBase && !HasWritebackToken && !isThumbTwo())
5617 return Error(Operands[2]->getStartLoc(),
5618 "writeback operator '!' expected");
5619 // If we should not have writeback, there must not be a '!'. This is
5620 // true even for the 32-bit wide encodings.
5621 if (ListContainsBase && HasWritebackToken)
5622 return Error(Operands[3]->getStartLoc(),
5623 "writeback operator '!' not allowed when base register "
5624 "in register list");
5628 case ARM::LDMIA_UPD:
5629 case ARM::LDMDB_UPD:
5630 case ARM::LDMIB_UPD:
5631 case ARM::LDMDA_UPD:
5632 // ARM variants loading and updating the same register are only officially
5633 // UNPREDICTABLE on v7 upwards. Goodness knows what they did before.
5637 case ARM::t2LDMIA_UPD:
5638 case ARM::t2LDMDB_UPD:
5639 case ARM::t2STMIA_UPD:
5640 case ARM::t2STMDB_UPD: {
5641 if (listContainsReg(Inst, 3, Inst.getOperand(0).getReg()))
5642 return Error(Operands.back()->getStartLoc(),
5643 "writeback register not allowed in register list");
5646 case ARM::sysLDMIA_UPD:
5647 case ARM::sysLDMDA_UPD:
5648 case ARM::sysLDMDB_UPD:
5649 case ARM::sysLDMIB_UPD:
5650 if (!listContainsReg(Inst, 3, ARM::PC))
5651 return Error(Operands[4]->getStartLoc(),
5652 "writeback register only allowed on system LDM "
5653 "if PC in register-list");
5655 case ARM::sysSTMIA_UPD:
5656 case ARM::sysSTMDA_UPD:
5657 case ARM::sysSTMDB_UPD:
5658 case ARM::sysSTMIB_UPD:
5659 return Error(Operands[2]->getStartLoc(),
5660 "system STM cannot have writeback register");
5662 // The second source operand must be the same register as the destination
5665 // In this case, we must directly check the parsed operands because the
5666 // cvtThumbMultiply() function is written in such a way that it guarantees
5667 // this first statement is always true for the new Inst. Essentially, the
5668 // destination is unconditionally copied into the second source operand
5669 // without checking to see if it matches what we actually parsed.
5670 if (Operands.size() == 6 &&
5671 (((ARMOperand*)Operands[3])->getReg() !=
5672 ((ARMOperand*)Operands[5])->getReg()) &&
5673 (((ARMOperand*)Operands[3])->getReg() !=
5674 ((ARMOperand*)Operands[4])->getReg())) {
5675 return Error(Operands[3]->getStartLoc(),
5676 "destination register must match source register");
5680 // Like for ldm/stm, push and pop have hi-reg handling version in Thumb2,
5681 // so only issue a diagnostic for thumb1. The instructions will be
5682 // switched to the t2 encodings in processInstruction() if necessary.
5684 bool ListContainsBase;
5685 if (checkLowRegisterList(Inst, 2, 0, ARM::PC, ListContainsBase) &&
5687 return Error(Operands[2]->getStartLoc(),
5688 "registers must be in range r0-r7 or pc");
5692 bool ListContainsBase;
5693 if (checkLowRegisterList(Inst, 2, 0, ARM::LR, ListContainsBase) &&
5695 return Error(Operands[2]->getStartLoc(),
5696 "registers must be in range r0-r7 or lr");
5699 case ARM::tSTMIA_UPD: {
5700 bool ListContainsBase, InvalidLowList;
5701 InvalidLowList = checkLowRegisterList(Inst, 4, Inst.getOperand(0).getReg(),
5702 0, ListContainsBase);
5703 if (InvalidLowList && !isThumbTwo())
5704 return Error(Operands[4]->getStartLoc(),
5705 "registers must be in range r0-r7");
5707 // This would be converted to a 32-bit stm, but that's not valid if the
5708 // writeback register is in the list.
5709 if (InvalidLowList && ListContainsBase)
5710 return Error(Operands[4]->getStartLoc(),
5711 "writeback operator '!' not allowed when base register "
5712 "in register list");
5715 case ARM::tADDrSP: {
5716 // If the non-SP source operand and the destination operand are not the
5717 // same, we need thumb2 (for the wide encoding), or we have an error.
5718 if (!isThumbTwo() &&
5719 Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
5720 return Error(Operands[4]->getStartLoc(),
5721 "source register must be the same as destination");
5725 // Final range checking for Thumb unconditional branch instructions.
5727 if (!(static_cast<ARMOperand*>(Operands[2]))->isSignedOffset<11, 1>())
5728 return Error(Operands[2]->getStartLoc(), "branch target out of range");
5731 int op = (Operands[2]->isImm()) ? 2 : 3;
5732 if (!(static_cast<ARMOperand*>(Operands[op]))->isSignedOffset<24, 1>())
5733 return Error(Operands[op]->getStartLoc(), "branch target out of range");
5736 // Final range checking for Thumb conditional branch instructions.
5738 if (!(static_cast<ARMOperand*>(Operands[2]))->isSignedOffset<8, 1>())
5739 return Error(Operands[2]->getStartLoc(), "branch target out of range");
5742 int Op = (Operands[2]->isImm()) ? 2 : 3;
5743 if (!(static_cast<ARMOperand*>(Operands[Op]))->isSignedOffset<20, 1>())
5744 return Error(Operands[Op]->getStartLoc(), "branch target out of range");
5752 static unsigned getRealVSTOpcode(unsigned Opc, unsigned &Spacing) {
5754 default: llvm_unreachable("unexpected opcode!");
5756 case ARM::VST1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5757 case ARM::VST1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5758 case ARM::VST1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5759 case ARM::VST1LNdWB_register_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5760 case ARM::VST1LNdWB_register_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5761 case ARM::VST1LNdWB_register_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5762 case ARM::VST1LNdAsm_8: Spacing = 1; return ARM::VST1LNd8;
5763 case ARM::VST1LNdAsm_16: Spacing = 1; return ARM::VST1LNd16;
5764 case ARM::VST1LNdAsm_32: Spacing = 1; return ARM::VST1LNd32;
5767 case ARM::VST2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5768 case ARM::VST2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5769 case ARM::VST2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5770 case ARM::VST2LNqWB_fixed_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5771 case ARM::VST2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5773 case ARM::VST2LNdWB_register_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5774 case ARM::VST2LNdWB_register_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5775 case ARM::VST2LNdWB_register_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5776 case ARM::VST2LNqWB_register_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5777 case ARM::VST2LNqWB_register_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5779 case ARM::VST2LNdAsm_8: Spacing = 1; return ARM::VST2LNd8;
5780 case ARM::VST2LNdAsm_16: Spacing = 1; return ARM::VST2LNd16;
5781 case ARM::VST2LNdAsm_32: Spacing = 1; return ARM::VST2LNd32;
5782 case ARM::VST2LNqAsm_16: Spacing = 2; return ARM::VST2LNq16;
5783 case ARM::VST2LNqAsm_32: Spacing = 2; return ARM::VST2LNq32;
5786 case ARM::VST3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5787 case ARM::VST3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5788 case ARM::VST3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5789 case ARM::VST3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNq16_UPD;
5790 case ARM::VST3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5791 case ARM::VST3LNdWB_register_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5792 case ARM::VST3LNdWB_register_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5793 case ARM::VST3LNdWB_register_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5794 case ARM::VST3LNqWB_register_Asm_16: Spacing = 2; return ARM::VST3LNq16_UPD;
5795 case ARM::VST3LNqWB_register_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5796 case ARM::VST3LNdAsm_8: Spacing = 1; return ARM::VST3LNd8;
5797 case ARM::VST3LNdAsm_16: Spacing = 1; return ARM::VST3LNd16;
5798 case ARM::VST3LNdAsm_32: Spacing = 1; return ARM::VST3LNd32;
5799 case ARM::VST3LNqAsm_16: Spacing = 2; return ARM::VST3LNq16;
5800 case ARM::VST3LNqAsm_32: Spacing = 2; return ARM::VST3LNq32;
5803 case ARM::VST3dWB_fixed_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5804 case ARM::VST3dWB_fixed_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5805 case ARM::VST3dWB_fixed_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5806 case ARM::VST3qWB_fixed_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5807 case ARM::VST3qWB_fixed_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5808 case ARM::VST3qWB_fixed_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5809 case ARM::VST3dWB_register_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5810 case ARM::VST3dWB_register_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5811 case ARM::VST3dWB_register_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5812 case ARM::VST3qWB_register_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5813 case ARM::VST3qWB_register_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5814 case ARM::VST3qWB_register_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5815 case ARM::VST3dAsm_8: Spacing = 1; return ARM::VST3d8;
5816 case ARM::VST3dAsm_16: Spacing = 1; return ARM::VST3d16;
5817 case ARM::VST3dAsm_32: Spacing = 1; return ARM::VST3d32;
5818 case ARM::VST3qAsm_8: Spacing = 2; return ARM::VST3q8;
5819 case ARM::VST3qAsm_16: Spacing = 2; return ARM::VST3q16;
5820 case ARM::VST3qAsm_32: Spacing = 2; return ARM::VST3q32;
5823 case ARM::VST4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5824 case ARM::VST4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5825 case ARM::VST4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5826 case ARM::VST4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNq16_UPD;
5827 case ARM::VST4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5828 case ARM::VST4LNdWB_register_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5829 case ARM::VST4LNdWB_register_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5830 case ARM::VST4LNdWB_register_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5831 case ARM::VST4LNqWB_register_Asm_16: Spacing = 2; return ARM::VST4LNq16_UPD;
5832 case ARM::VST4LNqWB_register_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5833 case ARM::VST4LNdAsm_8: Spacing = 1; return ARM::VST4LNd8;
5834 case ARM::VST4LNdAsm_16: Spacing = 1; return ARM::VST4LNd16;
5835 case ARM::VST4LNdAsm_32: Spacing = 1; return ARM::VST4LNd32;
5836 case ARM::VST4LNqAsm_16: Spacing = 2; return ARM::VST4LNq16;
5837 case ARM::VST4LNqAsm_32: Spacing = 2; return ARM::VST4LNq32;
5840 case ARM::VST4dWB_fixed_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5841 case ARM::VST4dWB_fixed_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5842 case ARM::VST4dWB_fixed_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5843 case ARM::VST4qWB_fixed_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5844 case ARM::VST4qWB_fixed_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5845 case ARM::VST4qWB_fixed_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5846 case ARM::VST4dWB_register_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5847 case ARM::VST4dWB_register_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5848 case ARM::VST4dWB_register_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5849 case ARM::VST4qWB_register_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5850 case ARM::VST4qWB_register_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5851 case ARM::VST4qWB_register_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5852 case ARM::VST4dAsm_8: Spacing = 1; return ARM::VST4d8;
5853 case ARM::VST4dAsm_16: Spacing = 1; return ARM::VST4d16;
5854 case ARM::VST4dAsm_32: Spacing = 1; return ARM::VST4d32;
5855 case ARM::VST4qAsm_8: Spacing = 2; return ARM::VST4q8;
5856 case ARM::VST4qAsm_16: Spacing = 2; return ARM::VST4q16;
5857 case ARM::VST4qAsm_32: Spacing = 2; return ARM::VST4q32;
5861 static unsigned getRealVLDOpcode(unsigned Opc, unsigned &Spacing) {
5863 default: llvm_unreachable("unexpected opcode!");
5865 case ARM::VLD1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5866 case ARM::VLD1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5867 case ARM::VLD1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5868 case ARM::VLD1LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5869 case ARM::VLD1LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5870 case ARM::VLD1LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5871 case ARM::VLD1LNdAsm_8: Spacing = 1; return ARM::VLD1LNd8;
5872 case ARM::VLD1LNdAsm_16: Spacing = 1; return ARM::VLD1LNd16;
5873 case ARM::VLD1LNdAsm_32: Spacing = 1; return ARM::VLD1LNd32;
5876 case ARM::VLD2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5877 case ARM::VLD2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5878 case ARM::VLD2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5879 case ARM::VLD2LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNq16_UPD;
5880 case ARM::VLD2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5881 case ARM::VLD2LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5882 case ARM::VLD2LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5883 case ARM::VLD2LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5884 case ARM::VLD2LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD2LNq16_UPD;
5885 case ARM::VLD2LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5886 case ARM::VLD2LNdAsm_8: Spacing = 1; return ARM::VLD2LNd8;
5887 case ARM::VLD2LNdAsm_16: Spacing = 1; return ARM::VLD2LNd16;
5888 case ARM::VLD2LNdAsm_32: Spacing = 1; return ARM::VLD2LNd32;
5889 case ARM::VLD2LNqAsm_16: Spacing = 2; return ARM::VLD2LNq16;
5890 case ARM::VLD2LNqAsm_32: Spacing = 2; return ARM::VLD2LNq32;
5893 case ARM::VLD3DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5894 case ARM::VLD3DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5895 case ARM::VLD3DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5896 case ARM::VLD3DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPq8_UPD;
5897 case ARM::VLD3DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPq16_UPD;
5898 case ARM::VLD3DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5899 case ARM::VLD3DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5900 case ARM::VLD3DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5901 case ARM::VLD3DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5902 case ARM::VLD3DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD3DUPq8_UPD;
5903 case ARM::VLD3DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD3DUPq16_UPD;
5904 case ARM::VLD3DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5905 case ARM::VLD3DUPdAsm_8: Spacing = 1; return ARM::VLD3DUPd8;
5906 case ARM::VLD3DUPdAsm_16: Spacing = 1; return ARM::VLD3DUPd16;
5907 case ARM::VLD3DUPdAsm_32: Spacing = 1; return ARM::VLD3DUPd32;
5908 case ARM::VLD3DUPqAsm_8: Spacing = 2; return ARM::VLD3DUPq8;
5909 case ARM::VLD3DUPqAsm_16: Spacing = 2; return ARM::VLD3DUPq16;
5910 case ARM::VLD3DUPqAsm_32: Spacing = 2; return ARM::VLD3DUPq32;
5913 case ARM::VLD3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5914 case ARM::VLD3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5915 case ARM::VLD3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5916 case ARM::VLD3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNq16_UPD;
5917 case ARM::VLD3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5918 case ARM::VLD3LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5919 case ARM::VLD3LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5920 case ARM::VLD3LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5921 case ARM::VLD3LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD3LNq16_UPD;
5922 case ARM::VLD3LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5923 case ARM::VLD3LNdAsm_8: Spacing = 1; return ARM::VLD3LNd8;
5924 case ARM::VLD3LNdAsm_16: Spacing = 1; return ARM::VLD3LNd16;
5925 case ARM::VLD3LNdAsm_32: Spacing = 1; return ARM::VLD3LNd32;
5926 case ARM::VLD3LNqAsm_16: Spacing = 2; return ARM::VLD3LNq16;
5927 case ARM::VLD3LNqAsm_32: Spacing = 2; return ARM::VLD3LNq32;
5930 case ARM::VLD3dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5931 case ARM::VLD3dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5932 case ARM::VLD3dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5933 case ARM::VLD3qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5934 case ARM::VLD3qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5935 case ARM::VLD3qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5936 case ARM::VLD3dWB_register_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5937 case ARM::VLD3dWB_register_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5938 case ARM::VLD3dWB_register_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5939 case ARM::VLD3qWB_register_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5940 case ARM::VLD3qWB_register_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5941 case ARM::VLD3qWB_register_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5942 case ARM::VLD3dAsm_8: Spacing = 1; return ARM::VLD3d8;
5943 case ARM::VLD3dAsm_16: Spacing = 1; return ARM::VLD3d16;
5944 case ARM::VLD3dAsm_32: Spacing = 1; return ARM::VLD3d32;
5945 case ARM::VLD3qAsm_8: Spacing = 2; return ARM::VLD3q8;
5946 case ARM::VLD3qAsm_16: Spacing = 2; return ARM::VLD3q16;
5947 case ARM::VLD3qAsm_32: Spacing = 2; return ARM::VLD3q32;
5950 case ARM::VLD4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5951 case ARM::VLD4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5952 case ARM::VLD4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5953 case ARM::VLD4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNq16_UPD;
5954 case ARM::VLD4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5955 case ARM::VLD4LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5956 case ARM::VLD4LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5957 case ARM::VLD4LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5958 case ARM::VLD4LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD4LNq16_UPD;
5959 case ARM::VLD4LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5960 case ARM::VLD4LNdAsm_8: Spacing = 1; return ARM::VLD4LNd8;
5961 case ARM::VLD4LNdAsm_16: Spacing = 1; return ARM::VLD4LNd16;
5962 case ARM::VLD4LNdAsm_32: Spacing = 1; return ARM::VLD4LNd32;
5963 case ARM::VLD4LNqAsm_16: Spacing = 2; return ARM::VLD4LNq16;
5964 case ARM::VLD4LNqAsm_32: Spacing = 2; return ARM::VLD4LNq32;
5967 case ARM::VLD4DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5968 case ARM::VLD4DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5969 case ARM::VLD4DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5970 case ARM::VLD4DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPq8_UPD;
5971 case ARM::VLD4DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPq16_UPD;
5972 case ARM::VLD4DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5973 case ARM::VLD4DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5974 case ARM::VLD4DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5975 case ARM::VLD4DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5976 case ARM::VLD4DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD4DUPq8_UPD;
5977 case ARM::VLD4DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD4DUPq16_UPD;
5978 case ARM::VLD4DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5979 case ARM::VLD4DUPdAsm_8: Spacing = 1; return ARM::VLD4DUPd8;
5980 case ARM::VLD4DUPdAsm_16: Spacing = 1; return ARM::VLD4DUPd16;
5981 case ARM::VLD4DUPdAsm_32: Spacing = 1; return ARM::VLD4DUPd32;
5982 case ARM::VLD4DUPqAsm_8: Spacing = 2; return ARM::VLD4DUPq8;
5983 case ARM::VLD4DUPqAsm_16: Spacing = 2; return ARM::VLD4DUPq16;
5984 case ARM::VLD4DUPqAsm_32: Spacing = 2; return ARM::VLD4DUPq32;
5987 case ARM::VLD4dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5988 case ARM::VLD4dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5989 case ARM::VLD4dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5990 case ARM::VLD4qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5991 case ARM::VLD4qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5992 case ARM::VLD4qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5993 case ARM::VLD4dWB_register_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5994 case ARM::VLD4dWB_register_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5995 case ARM::VLD4dWB_register_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5996 case ARM::VLD4qWB_register_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5997 case ARM::VLD4qWB_register_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5998 case ARM::VLD4qWB_register_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5999 case ARM::VLD4dAsm_8: Spacing = 1; return ARM::VLD4d8;
6000 case ARM::VLD4dAsm_16: Spacing = 1; return ARM::VLD4d16;
6001 case ARM::VLD4dAsm_32: Spacing = 1; return ARM::VLD4d32;
6002 case ARM::VLD4qAsm_8: Spacing = 2; return ARM::VLD4q8;
6003 case ARM::VLD4qAsm_16: Spacing = 2; return ARM::VLD4q16;
6004 case ARM::VLD4qAsm_32: Spacing = 2; return ARM::VLD4q32;
6009 processInstruction(MCInst &Inst,
6010 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
6011 switch (Inst.getOpcode()) {
6012 // Alias for alternate form of 'ldr{,b}t Rt, [Rn], #imm' instruction.
6013 case ARM::LDRT_POST:
6014 case ARM::LDRBT_POST: {
6015 const unsigned Opcode =
6016 (Inst.getOpcode() == ARM::LDRT_POST) ? ARM::LDRT_POST_IMM
6017 : ARM::LDRBT_POST_IMM;
6019 TmpInst.setOpcode(Opcode);
6020 TmpInst.addOperand(Inst.getOperand(0));
6021 TmpInst.addOperand(Inst.getOperand(1));
6022 TmpInst.addOperand(Inst.getOperand(1));
6023 TmpInst.addOperand(MCOperand::CreateReg(0));
6024 TmpInst.addOperand(MCOperand::CreateImm(0));
6025 TmpInst.addOperand(Inst.getOperand(2));
6026 TmpInst.addOperand(Inst.getOperand(3));
6030 // Alias for alternate form of 'str{,b}t Rt, [Rn], #imm' instruction.
6031 case ARM::STRT_POST:
6032 case ARM::STRBT_POST: {
6033 const unsigned Opcode =
6034 (Inst.getOpcode() == ARM::STRT_POST) ? ARM::STRT_POST_IMM
6035 : ARM::STRBT_POST_IMM;
6037 TmpInst.setOpcode(Opcode);
6038 TmpInst.addOperand(Inst.getOperand(1));
6039 TmpInst.addOperand(Inst.getOperand(0));
6040 TmpInst.addOperand(Inst.getOperand(1));
6041 TmpInst.addOperand(MCOperand::CreateReg(0));
6042 TmpInst.addOperand(MCOperand::CreateImm(0));
6043 TmpInst.addOperand(Inst.getOperand(2));
6044 TmpInst.addOperand(Inst.getOperand(3));
6048 // Alias for alternate form of 'ADR Rd, #imm' instruction.
6050 if (Inst.getOperand(1).getReg() != ARM::PC ||
6051 Inst.getOperand(5).getReg() != 0)
6054 TmpInst.setOpcode(ARM::ADR);
6055 TmpInst.addOperand(Inst.getOperand(0));
6056 TmpInst.addOperand(Inst.getOperand(2));
6057 TmpInst.addOperand(Inst.getOperand(3));
6058 TmpInst.addOperand(Inst.getOperand(4));
6062 // Aliases for alternate PC+imm syntax of LDR instructions.
6063 case ARM::t2LDRpcrel:
6064 // Select the narrow version if the immediate will fit.
6065 if (Inst.getOperand(1).getImm() > 0 &&
6066 Inst.getOperand(1).getImm() <= 0xff &&
6067 !(static_cast<ARMOperand*>(Operands[2])->isToken() &&
6068 static_cast<ARMOperand*>(Operands[2])->getToken() == ".w"))
6069 Inst.setOpcode(ARM::tLDRpci);
6071 Inst.setOpcode(ARM::t2LDRpci);
6073 case ARM::t2LDRBpcrel:
6074 Inst.setOpcode(ARM::t2LDRBpci);
6076 case ARM::t2LDRHpcrel:
6077 Inst.setOpcode(ARM::t2LDRHpci);
6079 case ARM::t2LDRSBpcrel:
6080 Inst.setOpcode(ARM::t2LDRSBpci);
6082 case ARM::t2LDRSHpcrel:
6083 Inst.setOpcode(ARM::t2LDRSHpci);
6085 // Handle NEON VST complex aliases.
6086 case ARM::VST1LNdWB_register_Asm_8:
6087 case ARM::VST1LNdWB_register_Asm_16:
6088 case ARM::VST1LNdWB_register_Asm_32: {
6090 // Shuffle the operands around so the lane index operand is in the
6093 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6094 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6095 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6096 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6097 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6098 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6099 TmpInst.addOperand(Inst.getOperand(1)); // lane
6100 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6101 TmpInst.addOperand(Inst.getOperand(6));
6106 case ARM::VST2LNdWB_register_Asm_8:
6107 case ARM::VST2LNdWB_register_Asm_16:
6108 case ARM::VST2LNdWB_register_Asm_32:
6109 case ARM::VST2LNqWB_register_Asm_16:
6110 case ARM::VST2LNqWB_register_Asm_32: {
6112 // Shuffle the operands around so the lane index operand is in the
6115 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6116 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6117 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6118 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6119 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6120 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6121 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6123 TmpInst.addOperand(Inst.getOperand(1)); // lane
6124 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6125 TmpInst.addOperand(Inst.getOperand(6));
6130 case ARM::VST3LNdWB_register_Asm_8:
6131 case ARM::VST3LNdWB_register_Asm_16:
6132 case ARM::VST3LNdWB_register_Asm_32:
6133 case ARM::VST3LNqWB_register_Asm_16:
6134 case ARM::VST3LNqWB_register_Asm_32: {
6136 // Shuffle the operands around so the lane index operand is in the
6139 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6140 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6141 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6142 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6143 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6144 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6145 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6147 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6149 TmpInst.addOperand(Inst.getOperand(1)); // lane
6150 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6151 TmpInst.addOperand(Inst.getOperand(6));
6156 case ARM::VST4LNdWB_register_Asm_8:
6157 case ARM::VST4LNdWB_register_Asm_16:
6158 case ARM::VST4LNdWB_register_Asm_32:
6159 case ARM::VST4LNqWB_register_Asm_16:
6160 case ARM::VST4LNqWB_register_Asm_32: {
6162 // Shuffle the operands around so the lane index operand is in the
6165 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6166 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6167 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6168 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6169 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6170 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6171 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6173 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6175 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6177 TmpInst.addOperand(Inst.getOperand(1)); // lane
6178 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6179 TmpInst.addOperand(Inst.getOperand(6));
6184 case ARM::VST1LNdWB_fixed_Asm_8:
6185 case ARM::VST1LNdWB_fixed_Asm_16:
6186 case ARM::VST1LNdWB_fixed_Asm_32: {
6188 // Shuffle the operands around so the lane index operand is in the
6191 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6192 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6193 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6194 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6195 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6196 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6197 TmpInst.addOperand(Inst.getOperand(1)); // lane
6198 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6199 TmpInst.addOperand(Inst.getOperand(5));
6204 case ARM::VST2LNdWB_fixed_Asm_8:
6205 case ARM::VST2LNdWB_fixed_Asm_16:
6206 case ARM::VST2LNdWB_fixed_Asm_32:
6207 case ARM::VST2LNqWB_fixed_Asm_16:
6208 case ARM::VST2LNqWB_fixed_Asm_32: {
6210 // Shuffle the operands around so the lane index operand is in the
6213 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6214 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6215 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6216 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6217 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6218 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6219 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6221 TmpInst.addOperand(Inst.getOperand(1)); // lane
6222 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6223 TmpInst.addOperand(Inst.getOperand(5));
6228 case ARM::VST3LNdWB_fixed_Asm_8:
6229 case ARM::VST3LNdWB_fixed_Asm_16:
6230 case ARM::VST3LNdWB_fixed_Asm_32:
6231 case ARM::VST3LNqWB_fixed_Asm_16:
6232 case ARM::VST3LNqWB_fixed_Asm_32: {
6234 // Shuffle the operands around so the lane index operand is in the
6237 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6238 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6239 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6240 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6241 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6242 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6243 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6245 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6247 TmpInst.addOperand(Inst.getOperand(1)); // lane
6248 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6249 TmpInst.addOperand(Inst.getOperand(5));
6254 case ARM::VST4LNdWB_fixed_Asm_8:
6255 case ARM::VST4LNdWB_fixed_Asm_16:
6256 case ARM::VST4LNdWB_fixed_Asm_32:
6257 case ARM::VST4LNqWB_fixed_Asm_16:
6258 case ARM::VST4LNqWB_fixed_Asm_32: {
6260 // Shuffle the operands around so the lane index operand is in the
6263 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6264 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6265 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6266 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6267 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6268 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6269 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6271 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6273 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6275 TmpInst.addOperand(Inst.getOperand(1)); // lane
6276 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6277 TmpInst.addOperand(Inst.getOperand(5));
6282 case ARM::VST1LNdAsm_8:
6283 case ARM::VST1LNdAsm_16:
6284 case ARM::VST1LNdAsm_32: {
6286 // Shuffle the operands around so the lane index operand is in the
6289 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6290 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6291 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6292 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6293 TmpInst.addOperand(Inst.getOperand(1)); // lane
6294 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6295 TmpInst.addOperand(Inst.getOperand(5));
6300 case ARM::VST2LNdAsm_8:
6301 case ARM::VST2LNdAsm_16:
6302 case ARM::VST2LNdAsm_32:
6303 case ARM::VST2LNqAsm_16:
6304 case ARM::VST2LNqAsm_32: {
6306 // Shuffle the operands around so the lane index operand is in the
6309 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6310 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6311 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6312 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6313 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6315 TmpInst.addOperand(Inst.getOperand(1)); // lane
6316 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6317 TmpInst.addOperand(Inst.getOperand(5));
6322 case ARM::VST3LNdAsm_8:
6323 case ARM::VST3LNdAsm_16:
6324 case ARM::VST3LNdAsm_32:
6325 case ARM::VST3LNqAsm_16:
6326 case ARM::VST3LNqAsm_32: {
6328 // Shuffle the operands around so the lane index operand is in the
6331 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6332 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6333 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6334 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6335 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6337 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6339 TmpInst.addOperand(Inst.getOperand(1)); // lane
6340 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6341 TmpInst.addOperand(Inst.getOperand(5));
6346 case ARM::VST4LNdAsm_8:
6347 case ARM::VST4LNdAsm_16:
6348 case ARM::VST4LNdAsm_32:
6349 case ARM::VST4LNqAsm_16:
6350 case ARM::VST4LNqAsm_32: {
6352 // Shuffle the operands around so the lane index operand is in the
6355 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6356 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6357 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6358 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6359 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6361 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6363 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6365 TmpInst.addOperand(Inst.getOperand(1)); // lane
6366 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6367 TmpInst.addOperand(Inst.getOperand(5));
6372 // Handle NEON VLD complex aliases.
6373 case ARM::VLD1LNdWB_register_Asm_8:
6374 case ARM::VLD1LNdWB_register_Asm_16:
6375 case ARM::VLD1LNdWB_register_Asm_32: {
6377 // Shuffle the operands around so the lane index operand is in the
6380 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6381 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6382 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6383 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6384 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6385 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6386 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6387 TmpInst.addOperand(Inst.getOperand(1)); // lane
6388 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6389 TmpInst.addOperand(Inst.getOperand(6));
6394 case ARM::VLD2LNdWB_register_Asm_8:
6395 case ARM::VLD2LNdWB_register_Asm_16:
6396 case ARM::VLD2LNdWB_register_Asm_32:
6397 case ARM::VLD2LNqWB_register_Asm_16:
6398 case ARM::VLD2LNqWB_register_Asm_32: {
6400 // Shuffle the operands around so the lane index operand is in the
6403 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6404 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6405 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6407 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6408 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6409 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6410 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6411 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6412 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6414 TmpInst.addOperand(Inst.getOperand(1)); // lane
6415 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6416 TmpInst.addOperand(Inst.getOperand(6));
6421 case ARM::VLD3LNdWB_register_Asm_8:
6422 case ARM::VLD3LNdWB_register_Asm_16:
6423 case ARM::VLD3LNdWB_register_Asm_32:
6424 case ARM::VLD3LNqWB_register_Asm_16:
6425 case ARM::VLD3LNqWB_register_Asm_32: {
6427 // Shuffle the operands around so the lane index operand is in the
6430 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6431 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6432 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6434 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6436 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6437 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6438 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6439 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6440 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6441 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6443 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6445 TmpInst.addOperand(Inst.getOperand(1)); // lane
6446 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6447 TmpInst.addOperand(Inst.getOperand(6));
6452 case ARM::VLD4LNdWB_register_Asm_8:
6453 case ARM::VLD4LNdWB_register_Asm_16:
6454 case ARM::VLD4LNdWB_register_Asm_32:
6455 case ARM::VLD4LNqWB_register_Asm_16:
6456 case ARM::VLD4LNqWB_register_Asm_32: {
6458 // Shuffle the operands around so the lane index operand is in the
6461 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6462 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6463 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6465 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6467 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6469 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6470 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6471 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6472 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6473 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6474 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6476 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6478 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6480 TmpInst.addOperand(Inst.getOperand(1)); // lane
6481 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6482 TmpInst.addOperand(Inst.getOperand(6));
6487 case ARM::VLD1LNdWB_fixed_Asm_8:
6488 case ARM::VLD1LNdWB_fixed_Asm_16:
6489 case ARM::VLD1LNdWB_fixed_Asm_32: {
6491 // Shuffle the operands around so the lane index operand is in the
6494 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6495 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6496 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6497 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6498 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6499 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6500 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6501 TmpInst.addOperand(Inst.getOperand(1)); // lane
6502 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6503 TmpInst.addOperand(Inst.getOperand(5));
6508 case ARM::VLD2LNdWB_fixed_Asm_8:
6509 case ARM::VLD2LNdWB_fixed_Asm_16:
6510 case ARM::VLD2LNdWB_fixed_Asm_32:
6511 case ARM::VLD2LNqWB_fixed_Asm_16:
6512 case ARM::VLD2LNqWB_fixed_Asm_32: {
6514 // Shuffle the operands around so the lane index operand is in the
6517 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6518 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6519 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6521 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6522 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6523 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6524 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6525 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6526 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6528 TmpInst.addOperand(Inst.getOperand(1)); // lane
6529 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6530 TmpInst.addOperand(Inst.getOperand(5));
6535 case ARM::VLD3LNdWB_fixed_Asm_8:
6536 case ARM::VLD3LNdWB_fixed_Asm_16:
6537 case ARM::VLD3LNdWB_fixed_Asm_32:
6538 case ARM::VLD3LNqWB_fixed_Asm_16:
6539 case ARM::VLD3LNqWB_fixed_Asm_32: {
6541 // Shuffle the operands around so the lane index operand is in the
6544 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6545 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6546 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6548 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6550 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6551 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6552 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6553 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6554 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6555 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6557 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6559 TmpInst.addOperand(Inst.getOperand(1)); // lane
6560 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6561 TmpInst.addOperand(Inst.getOperand(5));
6566 case ARM::VLD4LNdWB_fixed_Asm_8:
6567 case ARM::VLD4LNdWB_fixed_Asm_16:
6568 case ARM::VLD4LNdWB_fixed_Asm_32:
6569 case ARM::VLD4LNqWB_fixed_Asm_16:
6570 case ARM::VLD4LNqWB_fixed_Asm_32: {
6572 // Shuffle the operands around so the lane index operand is in the
6575 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6576 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6577 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6579 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6581 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6583 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6584 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6585 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6586 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6587 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6588 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6590 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6592 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6594 TmpInst.addOperand(Inst.getOperand(1)); // lane
6595 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6596 TmpInst.addOperand(Inst.getOperand(5));
6601 case ARM::VLD1LNdAsm_8:
6602 case ARM::VLD1LNdAsm_16:
6603 case ARM::VLD1LNdAsm_32: {
6605 // Shuffle the operands around so the lane index operand is in the
6608 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6609 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6610 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6611 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6612 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6613 TmpInst.addOperand(Inst.getOperand(1)); // lane
6614 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6615 TmpInst.addOperand(Inst.getOperand(5));
6620 case ARM::VLD2LNdAsm_8:
6621 case ARM::VLD2LNdAsm_16:
6622 case ARM::VLD2LNdAsm_32:
6623 case ARM::VLD2LNqAsm_16:
6624 case ARM::VLD2LNqAsm_32: {
6626 // Shuffle the operands around so the lane index operand is in the
6629 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6630 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6631 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6633 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6634 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6635 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6636 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6638 TmpInst.addOperand(Inst.getOperand(1)); // lane
6639 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6640 TmpInst.addOperand(Inst.getOperand(5));
6645 case ARM::VLD3LNdAsm_8:
6646 case ARM::VLD3LNdAsm_16:
6647 case ARM::VLD3LNdAsm_32:
6648 case ARM::VLD3LNqAsm_16:
6649 case ARM::VLD3LNqAsm_32: {
6651 // Shuffle the operands around so the lane index operand is in the
6654 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6655 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6656 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6658 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6660 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6661 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6662 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6663 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6665 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6667 TmpInst.addOperand(Inst.getOperand(1)); // lane
6668 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6669 TmpInst.addOperand(Inst.getOperand(5));
6674 case ARM::VLD4LNdAsm_8:
6675 case ARM::VLD4LNdAsm_16:
6676 case ARM::VLD4LNdAsm_32:
6677 case ARM::VLD4LNqAsm_16:
6678 case ARM::VLD4LNqAsm_32: {
6680 // Shuffle the operands around so the lane index operand is in the
6683 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6684 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6685 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6687 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6689 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6691 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6692 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6693 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6694 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6696 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6698 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6700 TmpInst.addOperand(Inst.getOperand(1)); // lane
6701 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6702 TmpInst.addOperand(Inst.getOperand(5));
6707 // VLD3DUP single 3-element structure to all lanes instructions.
6708 case ARM::VLD3DUPdAsm_8:
6709 case ARM::VLD3DUPdAsm_16:
6710 case ARM::VLD3DUPdAsm_32:
6711 case ARM::VLD3DUPqAsm_8:
6712 case ARM::VLD3DUPqAsm_16:
6713 case ARM::VLD3DUPqAsm_32: {
6716 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6717 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6718 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6720 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6722 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6723 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6724 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6725 TmpInst.addOperand(Inst.getOperand(4));
6730 case ARM::VLD3DUPdWB_fixed_Asm_8:
6731 case ARM::VLD3DUPdWB_fixed_Asm_16:
6732 case ARM::VLD3DUPdWB_fixed_Asm_32:
6733 case ARM::VLD3DUPqWB_fixed_Asm_8:
6734 case ARM::VLD3DUPqWB_fixed_Asm_16:
6735 case ARM::VLD3DUPqWB_fixed_Asm_32: {
6738 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6739 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6740 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6742 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6744 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6745 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6746 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6747 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6748 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6749 TmpInst.addOperand(Inst.getOperand(4));
6754 case ARM::VLD3DUPdWB_register_Asm_8:
6755 case ARM::VLD3DUPdWB_register_Asm_16:
6756 case ARM::VLD3DUPdWB_register_Asm_32:
6757 case ARM::VLD3DUPqWB_register_Asm_8:
6758 case ARM::VLD3DUPqWB_register_Asm_16:
6759 case ARM::VLD3DUPqWB_register_Asm_32: {
6762 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6763 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6764 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6766 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6768 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6769 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6770 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6771 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6772 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6773 TmpInst.addOperand(Inst.getOperand(5));
6778 // VLD3 multiple 3-element structure instructions.
6779 case ARM::VLD3dAsm_8:
6780 case ARM::VLD3dAsm_16:
6781 case ARM::VLD3dAsm_32:
6782 case ARM::VLD3qAsm_8:
6783 case ARM::VLD3qAsm_16:
6784 case ARM::VLD3qAsm_32: {
6787 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6788 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6789 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6791 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6793 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6794 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6795 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6796 TmpInst.addOperand(Inst.getOperand(4));
6801 case ARM::VLD3dWB_fixed_Asm_8:
6802 case ARM::VLD3dWB_fixed_Asm_16:
6803 case ARM::VLD3dWB_fixed_Asm_32:
6804 case ARM::VLD3qWB_fixed_Asm_8:
6805 case ARM::VLD3qWB_fixed_Asm_16:
6806 case ARM::VLD3qWB_fixed_Asm_32: {
6809 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6810 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6811 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6813 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6815 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6816 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6817 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6818 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6819 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6820 TmpInst.addOperand(Inst.getOperand(4));
6825 case ARM::VLD3dWB_register_Asm_8:
6826 case ARM::VLD3dWB_register_Asm_16:
6827 case ARM::VLD3dWB_register_Asm_32:
6828 case ARM::VLD3qWB_register_Asm_8:
6829 case ARM::VLD3qWB_register_Asm_16:
6830 case ARM::VLD3qWB_register_Asm_32: {
6833 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6834 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6835 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6837 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6839 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6840 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6841 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6842 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6843 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6844 TmpInst.addOperand(Inst.getOperand(5));
6849 // VLD4DUP single 3-element structure to all lanes instructions.
6850 case ARM::VLD4DUPdAsm_8:
6851 case ARM::VLD4DUPdAsm_16:
6852 case ARM::VLD4DUPdAsm_32:
6853 case ARM::VLD4DUPqAsm_8:
6854 case ARM::VLD4DUPqAsm_16:
6855 case ARM::VLD4DUPqAsm_32: {
6858 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6859 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6860 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6862 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6864 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6866 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6867 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6868 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6869 TmpInst.addOperand(Inst.getOperand(4));
6874 case ARM::VLD4DUPdWB_fixed_Asm_8:
6875 case ARM::VLD4DUPdWB_fixed_Asm_16:
6876 case ARM::VLD4DUPdWB_fixed_Asm_32:
6877 case ARM::VLD4DUPqWB_fixed_Asm_8:
6878 case ARM::VLD4DUPqWB_fixed_Asm_16:
6879 case ARM::VLD4DUPqWB_fixed_Asm_32: {
6882 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6883 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6884 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6886 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6888 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6890 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6891 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6892 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6893 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6894 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6895 TmpInst.addOperand(Inst.getOperand(4));
6900 case ARM::VLD4DUPdWB_register_Asm_8:
6901 case ARM::VLD4DUPdWB_register_Asm_16:
6902 case ARM::VLD4DUPdWB_register_Asm_32:
6903 case ARM::VLD4DUPqWB_register_Asm_8:
6904 case ARM::VLD4DUPqWB_register_Asm_16:
6905 case ARM::VLD4DUPqWB_register_Asm_32: {
6908 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6909 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6910 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6912 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6914 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6916 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6917 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6918 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6919 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6920 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6921 TmpInst.addOperand(Inst.getOperand(5));
6926 // VLD4 multiple 4-element structure instructions.
6927 case ARM::VLD4dAsm_8:
6928 case ARM::VLD4dAsm_16:
6929 case ARM::VLD4dAsm_32:
6930 case ARM::VLD4qAsm_8:
6931 case ARM::VLD4qAsm_16:
6932 case ARM::VLD4qAsm_32: {
6935 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6936 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6937 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6939 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6941 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6943 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6944 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6945 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6946 TmpInst.addOperand(Inst.getOperand(4));
6951 case ARM::VLD4dWB_fixed_Asm_8:
6952 case ARM::VLD4dWB_fixed_Asm_16:
6953 case ARM::VLD4dWB_fixed_Asm_32:
6954 case ARM::VLD4qWB_fixed_Asm_8:
6955 case ARM::VLD4qWB_fixed_Asm_16:
6956 case ARM::VLD4qWB_fixed_Asm_32: {
6959 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6960 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6961 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6963 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6965 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6967 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6968 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6969 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6970 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6971 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6972 TmpInst.addOperand(Inst.getOperand(4));
6977 case ARM::VLD4dWB_register_Asm_8:
6978 case ARM::VLD4dWB_register_Asm_16:
6979 case ARM::VLD4dWB_register_Asm_32:
6980 case ARM::VLD4qWB_register_Asm_8:
6981 case ARM::VLD4qWB_register_Asm_16:
6982 case ARM::VLD4qWB_register_Asm_32: {
6985 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6986 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6987 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6989 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6991 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6993 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6994 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6995 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6996 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6997 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6998 TmpInst.addOperand(Inst.getOperand(5));
7003 // VST3 multiple 3-element structure instructions.
7004 case ARM::VST3dAsm_8:
7005 case ARM::VST3dAsm_16:
7006 case ARM::VST3dAsm_32:
7007 case ARM::VST3qAsm_8:
7008 case ARM::VST3qAsm_16:
7009 case ARM::VST3qAsm_32: {
7012 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7013 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7014 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7015 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7016 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7018 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7020 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7021 TmpInst.addOperand(Inst.getOperand(4));
7026 case ARM::VST3dWB_fixed_Asm_8:
7027 case ARM::VST3dWB_fixed_Asm_16:
7028 case ARM::VST3dWB_fixed_Asm_32:
7029 case ARM::VST3qWB_fixed_Asm_8:
7030 case ARM::VST3qWB_fixed_Asm_16:
7031 case ARM::VST3qWB_fixed_Asm_32: {
7034 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7035 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7036 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7037 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7038 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
7039 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7040 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7042 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7044 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7045 TmpInst.addOperand(Inst.getOperand(4));
7050 case ARM::VST3dWB_register_Asm_8:
7051 case ARM::VST3dWB_register_Asm_16:
7052 case ARM::VST3dWB_register_Asm_32:
7053 case ARM::VST3qWB_register_Asm_8:
7054 case ARM::VST3qWB_register_Asm_16:
7055 case ARM::VST3qWB_register_Asm_32: {
7058 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7059 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7060 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7061 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7062 TmpInst.addOperand(Inst.getOperand(3)); // Rm
7063 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7064 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7066 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7068 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7069 TmpInst.addOperand(Inst.getOperand(5));
7074 // VST4 multiple 3-element structure instructions.
7075 case ARM::VST4dAsm_8:
7076 case ARM::VST4dAsm_16:
7077 case ARM::VST4dAsm_32:
7078 case ARM::VST4qAsm_8:
7079 case ARM::VST4qAsm_16:
7080 case ARM::VST4qAsm_32: {
7083 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7084 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7085 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7086 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7087 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7089 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7091 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7093 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7094 TmpInst.addOperand(Inst.getOperand(4));
7099 case ARM::VST4dWB_fixed_Asm_8:
7100 case ARM::VST4dWB_fixed_Asm_16:
7101 case ARM::VST4dWB_fixed_Asm_32:
7102 case ARM::VST4qWB_fixed_Asm_8:
7103 case ARM::VST4qWB_fixed_Asm_16:
7104 case ARM::VST4qWB_fixed_Asm_32: {
7107 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7108 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7109 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7110 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7111 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
7112 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7113 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7115 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7117 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7119 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7120 TmpInst.addOperand(Inst.getOperand(4));
7125 case ARM::VST4dWB_register_Asm_8:
7126 case ARM::VST4dWB_register_Asm_16:
7127 case ARM::VST4dWB_register_Asm_32:
7128 case ARM::VST4qWB_register_Asm_8:
7129 case ARM::VST4qWB_register_Asm_16:
7130 case ARM::VST4qWB_register_Asm_32: {
7133 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
7134 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7135 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
7136 TmpInst.addOperand(Inst.getOperand(2)); // alignment
7137 TmpInst.addOperand(Inst.getOperand(3)); // Rm
7138 TmpInst.addOperand(Inst.getOperand(0)); // Vd
7139 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7141 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7143 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
7145 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7146 TmpInst.addOperand(Inst.getOperand(5));
7151 // Handle encoding choice for the shift-immediate instructions.
7154 case ARM::t2ASRri: {
7155 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7156 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7157 Inst.getOperand(5).getReg() == (inITBlock() ? 0 : ARM::CPSR) &&
7158 !(static_cast<ARMOperand*>(Operands[3])->isToken() &&
7159 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w")) {
7161 switch (Inst.getOpcode()) {
7162 default: llvm_unreachable("unexpected opcode");
7163 case ARM::t2LSLri: NewOpc = ARM::tLSLri; break;
7164 case ARM::t2LSRri: NewOpc = ARM::tLSRri; break;
7165 case ARM::t2ASRri: NewOpc = ARM::tASRri; break;
7167 // The Thumb1 operands aren't in the same order. Awesome, eh?
7169 TmpInst.setOpcode(NewOpc);
7170 TmpInst.addOperand(Inst.getOperand(0));
7171 TmpInst.addOperand(Inst.getOperand(5));
7172 TmpInst.addOperand(Inst.getOperand(1));
7173 TmpInst.addOperand(Inst.getOperand(2));
7174 TmpInst.addOperand(Inst.getOperand(3));
7175 TmpInst.addOperand(Inst.getOperand(4));
7182 // Handle the Thumb2 mode MOV complex aliases.
7184 case ARM::t2MOVSsr: {
7185 // Which instruction to expand to depends on the CCOut operand and
7186 // whether we're in an IT block if the register operands are low
7188 bool isNarrow = false;
7189 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7190 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7191 isARMLowRegister(Inst.getOperand(2).getReg()) &&
7192 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7193 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsr))
7197 switch(ARM_AM::getSORegShOp(Inst.getOperand(3).getImm())) {
7198 default: llvm_unreachable("unexpected opcode!");
7199 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRrr : ARM::t2ASRrr; break;
7200 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRrr : ARM::t2LSRrr; break;
7201 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLrr : ARM::t2LSLrr; break;
7202 case ARM_AM::ror: newOpc = isNarrow ? ARM::tROR : ARM::t2RORrr; break;
7204 TmpInst.setOpcode(newOpc);
7205 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7207 TmpInst.addOperand(MCOperand::CreateReg(
7208 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
7209 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7210 TmpInst.addOperand(Inst.getOperand(2)); // Rm
7211 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7212 TmpInst.addOperand(Inst.getOperand(5));
7214 TmpInst.addOperand(MCOperand::CreateReg(
7215 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
7220 case ARM::t2MOVSsi: {
7221 // Which instruction to expand to depends on the CCOut operand and
7222 // whether we're in an IT block if the register operands are low
7224 bool isNarrow = false;
7225 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7226 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7227 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsi))
7231 switch(ARM_AM::getSORegShOp(Inst.getOperand(2).getImm())) {
7232 default: llvm_unreachable("unexpected opcode!");
7233 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRri : ARM::t2ASRri; break;
7234 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRri : ARM::t2LSRri; break;
7235 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLri : ARM::t2LSLri; break;
7236 case ARM_AM::ror: newOpc = ARM::t2RORri; isNarrow = false; break;
7237 case ARM_AM::rrx: isNarrow = false; newOpc = ARM::t2RRX; break;
7239 unsigned Amount = ARM_AM::getSORegOffset(Inst.getOperand(2).getImm());
7240 if (Amount == 32) Amount = 0;
7241 TmpInst.setOpcode(newOpc);
7242 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7244 TmpInst.addOperand(MCOperand::CreateReg(
7245 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
7246 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7247 if (newOpc != ARM::t2RRX)
7248 TmpInst.addOperand(MCOperand::CreateImm(Amount));
7249 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7250 TmpInst.addOperand(Inst.getOperand(4));
7252 TmpInst.addOperand(MCOperand::CreateReg(
7253 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
7257 // Handle the ARM mode MOV complex aliases.
7262 ARM_AM::ShiftOpc ShiftTy;
7263 switch(Inst.getOpcode()) {
7264 default: llvm_unreachable("unexpected opcode!");
7265 case ARM::ASRr: ShiftTy = ARM_AM::asr; break;
7266 case ARM::LSRr: ShiftTy = ARM_AM::lsr; break;
7267 case ARM::LSLr: ShiftTy = ARM_AM::lsl; break;
7268 case ARM::RORr: ShiftTy = ARM_AM::ror; break;
7270 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, 0);
7272 TmpInst.setOpcode(ARM::MOVsr);
7273 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7274 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7275 TmpInst.addOperand(Inst.getOperand(2)); // Rm
7276 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7277 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7278 TmpInst.addOperand(Inst.getOperand(4));
7279 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
7287 ARM_AM::ShiftOpc ShiftTy;
7288 switch(Inst.getOpcode()) {
7289 default: llvm_unreachable("unexpected opcode!");
7290 case ARM::ASRi: ShiftTy = ARM_AM::asr; break;
7291 case ARM::LSRi: ShiftTy = ARM_AM::lsr; break;
7292 case ARM::LSLi: ShiftTy = ARM_AM::lsl; break;
7293 case ARM::RORi: ShiftTy = ARM_AM::ror; break;
7295 // A shift by zero is a plain MOVr, not a MOVsi.
7296 unsigned Amt = Inst.getOperand(2).getImm();
7297 unsigned Opc = Amt == 0 ? ARM::MOVr : ARM::MOVsi;
7298 // A shift by 32 should be encoded as 0 when permitted
7299 if (Amt == 32 && (ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr))
7301 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, Amt);
7303 TmpInst.setOpcode(Opc);
7304 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7305 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7306 if (Opc == ARM::MOVsi)
7307 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7308 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7309 TmpInst.addOperand(Inst.getOperand(4));
7310 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
7315 unsigned Shifter = ARM_AM::getSORegOpc(ARM_AM::rrx, 0);
7317 TmpInst.setOpcode(ARM::MOVsi);
7318 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7319 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7320 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7321 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7322 TmpInst.addOperand(Inst.getOperand(3));
7323 TmpInst.addOperand(Inst.getOperand(4)); // cc_out
7327 case ARM::t2LDMIA_UPD: {
7328 // If this is a load of a single register, then we should use
7329 // a post-indexed LDR instruction instead, per the ARM ARM.
7330 if (Inst.getNumOperands() != 5)
7333 TmpInst.setOpcode(ARM::t2LDR_POST);
7334 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7335 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7336 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7337 TmpInst.addOperand(MCOperand::CreateImm(4));
7338 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7339 TmpInst.addOperand(Inst.getOperand(3));
7343 case ARM::t2STMDB_UPD: {
7344 // If this is a store of a single register, then we should use
7345 // a pre-indexed STR instruction instead, per the ARM ARM.
7346 if (Inst.getNumOperands() != 5)
7349 TmpInst.setOpcode(ARM::t2STR_PRE);
7350 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7351 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7352 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7353 TmpInst.addOperand(MCOperand::CreateImm(-4));
7354 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7355 TmpInst.addOperand(Inst.getOperand(3));
7359 case ARM::LDMIA_UPD:
7360 // If this is a load of a single register via a 'pop', then we should use
7361 // a post-indexed LDR instruction instead, per the ARM ARM.
7362 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "pop" &&
7363 Inst.getNumOperands() == 5) {
7365 TmpInst.setOpcode(ARM::LDR_POST_IMM);
7366 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7367 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7368 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7369 TmpInst.addOperand(MCOperand::CreateReg(0)); // am2offset
7370 TmpInst.addOperand(MCOperand::CreateImm(4));
7371 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7372 TmpInst.addOperand(Inst.getOperand(3));
7377 case ARM::STMDB_UPD:
7378 // If this is a store of a single register via a 'push', then we should use
7379 // a pre-indexed STR instruction instead, per the ARM ARM.
7380 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "push" &&
7381 Inst.getNumOperands() == 5) {
7383 TmpInst.setOpcode(ARM::STR_PRE_IMM);
7384 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7385 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7386 TmpInst.addOperand(Inst.getOperand(1)); // addrmode_imm12
7387 TmpInst.addOperand(MCOperand::CreateImm(-4));
7388 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7389 TmpInst.addOperand(Inst.getOperand(3));
7393 case ARM::t2ADDri12:
7394 // If the immediate fits for encoding T3 (t2ADDri) and the generic "add"
7395 // mnemonic was used (not "addw"), encoding T3 is preferred.
7396 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "add" ||
7397 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
7399 Inst.setOpcode(ARM::t2ADDri);
7400 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7402 case ARM::t2SUBri12:
7403 // If the immediate fits for encoding T3 (t2SUBri) and the generic "sub"
7404 // mnemonic was used (not "subw"), encoding T3 is preferred.
7405 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "sub" ||
7406 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
7408 Inst.setOpcode(ARM::t2SUBri);
7409 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7412 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
7413 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
7414 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
7415 // to encoding T1 if <Rd> is omitted."
7416 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
7417 Inst.setOpcode(ARM::tADDi3);
7422 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
7423 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
7424 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
7425 // to encoding T1 if <Rd> is omitted."
7426 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
7427 Inst.setOpcode(ARM::tSUBi3);
7432 case ARM::t2SUBri: {
7433 // If the destination and first source operand are the same, and
7434 // the flags are compatible with the current IT status, use encoding T2
7435 // instead of T3. For compatibility with the system 'as'. Make sure the
7436 // wide encoding wasn't explicit.
7437 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
7438 !isARMLowRegister(Inst.getOperand(0).getReg()) ||
7439 (unsigned)Inst.getOperand(2).getImm() > 255 ||
7440 ((!inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR) ||
7441 (inITBlock() && Inst.getOperand(5).getReg() != 0)) ||
7442 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7443 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
7446 TmpInst.setOpcode(Inst.getOpcode() == ARM::t2ADDri ?
7447 ARM::tADDi8 : ARM::tSUBi8);
7448 TmpInst.addOperand(Inst.getOperand(0));
7449 TmpInst.addOperand(Inst.getOperand(5));
7450 TmpInst.addOperand(Inst.getOperand(0));
7451 TmpInst.addOperand(Inst.getOperand(2));
7452 TmpInst.addOperand(Inst.getOperand(3));
7453 TmpInst.addOperand(Inst.getOperand(4));
7457 case ARM::t2ADDrr: {
7458 // If the destination and first source operand are the same, and
7459 // there's no setting of the flags, use encoding T2 instead of T3.
7460 // Note that this is only for ADD, not SUB. This mirrors the system
7461 // 'as' behaviour. Make sure the wide encoding wasn't explicit.
7462 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
7463 Inst.getOperand(5).getReg() != 0 ||
7464 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7465 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
7468 TmpInst.setOpcode(ARM::tADDhirr);
7469 TmpInst.addOperand(Inst.getOperand(0));
7470 TmpInst.addOperand(Inst.getOperand(0));
7471 TmpInst.addOperand(Inst.getOperand(2));
7472 TmpInst.addOperand(Inst.getOperand(3));
7473 TmpInst.addOperand(Inst.getOperand(4));
7477 case ARM::tADDrSP: {
7478 // If the non-SP source operand and the destination operand are not the
7479 // same, we need to use the 32-bit encoding if it's available.
7480 if (Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
7481 Inst.setOpcode(ARM::t2ADDrr);
7482 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7488 // A Thumb conditional branch outside of an IT block is a tBcc.
7489 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()) {
7490 Inst.setOpcode(ARM::tBcc);
7495 // A Thumb2 conditional branch outside of an IT block is a t2Bcc.
7496 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()){
7497 Inst.setOpcode(ARM::t2Bcc);
7502 // If the conditional is AL or we're in an IT block, we really want t2B.
7503 if (Inst.getOperand(1).getImm() == ARMCC::AL || inITBlock()) {
7504 Inst.setOpcode(ARM::t2B);
7509 // If the conditional is AL, we really want tB.
7510 if (Inst.getOperand(1).getImm() == ARMCC::AL) {
7511 Inst.setOpcode(ARM::tB);
7516 // If the register list contains any high registers, or if the writeback
7517 // doesn't match what tLDMIA can do, we need to use the 32-bit encoding
7518 // instead if we're in Thumb2. Otherwise, this should have generated
7519 // an error in validateInstruction().
7520 unsigned Rn = Inst.getOperand(0).getReg();
7521 bool hasWritebackToken =
7522 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7523 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
7524 bool listContainsBase;
7525 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) ||
7526 (!listContainsBase && !hasWritebackToken) ||
7527 (listContainsBase && hasWritebackToken)) {
7528 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7529 assert (isThumbTwo());
7530 Inst.setOpcode(hasWritebackToken ? ARM::t2LDMIA_UPD : ARM::t2LDMIA);
7531 // If we're switching to the updating version, we need to insert
7532 // the writeback tied operand.
7533 if (hasWritebackToken)
7534 Inst.insert(Inst.begin(),
7535 MCOperand::CreateReg(Inst.getOperand(0).getReg()));
7540 case ARM::tSTMIA_UPD: {
7541 // If the register list contains any high registers, we need to use
7542 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7543 // should have generated an error in validateInstruction().
7544 unsigned Rn = Inst.getOperand(0).getReg();
7545 bool listContainsBase;
7546 if (checkLowRegisterList(Inst, 4, Rn, 0, listContainsBase)) {
7547 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7548 assert (isThumbTwo());
7549 Inst.setOpcode(ARM::t2STMIA_UPD);
7555 bool listContainsBase;
7556 // If the register list contains any high registers, we need to use
7557 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7558 // should have generated an error in validateInstruction().
7559 if (!checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase))
7561 assert (isThumbTwo());
7562 Inst.setOpcode(ARM::t2LDMIA_UPD);
7563 // Add the base register and writeback operands.
7564 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7565 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7569 bool listContainsBase;
7570 if (!checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase))
7572 assert (isThumbTwo());
7573 Inst.setOpcode(ARM::t2STMDB_UPD);
7574 // Add the base register and writeback operands.
7575 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7576 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7580 // If we can use the 16-bit encoding and the user didn't explicitly
7581 // request the 32-bit variant, transform it here.
7582 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7583 (unsigned)Inst.getOperand(1).getImm() <= 255 &&
7584 ((!inITBlock() && Inst.getOperand(2).getImm() == ARMCC::AL &&
7585 Inst.getOperand(4).getReg() == ARM::CPSR) ||
7586 (inITBlock() && Inst.getOperand(4).getReg() == 0)) &&
7587 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7588 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7589 // The operands aren't in the same order for tMOVi8...
7591 TmpInst.setOpcode(ARM::tMOVi8);
7592 TmpInst.addOperand(Inst.getOperand(0));
7593 TmpInst.addOperand(Inst.getOperand(4));
7594 TmpInst.addOperand(Inst.getOperand(1));
7595 TmpInst.addOperand(Inst.getOperand(2));
7596 TmpInst.addOperand(Inst.getOperand(3));
7603 // If we can use the 16-bit encoding and the user didn't explicitly
7604 // request the 32-bit variant, transform it here.
7605 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7606 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7607 Inst.getOperand(2).getImm() == ARMCC::AL &&
7608 Inst.getOperand(4).getReg() == ARM::CPSR &&
7609 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7610 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7611 // The operands aren't the same for tMOV[S]r... (no cc_out)
7613 TmpInst.setOpcode(Inst.getOperand(4).getReg() ? ARM::tMOVSr : ARM::tMOVr);
7614 TmpInst.addOperand(Inst.getOperand(0));
7615 TmpInst.addOperand(Inst.getOperand(1));
7616 TmpInst.addOperand(Inst.getOperand(2));
7617 TmpInst.addOperand(Inst.getOperand(3));
7627 // If we can use the 16-bit encoding and the user didn't explicitly
7628 // request the 32-bit variant, transform it here.
7629 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7630 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7631 Inst.getOperand(2).getImm() == 0 &&
7632 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7633 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7635 switch (Inst.getOpcode()) {
7636 default: llvm_unreachable("Illegal opcode!");
7637 case ARM::t2SXTH: NewOpc = ARM::tSXTH; break;
7638 case ARM::t2SXTB: NewOpc = ARM::tSXTB; break;
7639 case ARM::t2UXTH: NewOpc = ARM::tUXTH; break;
7640 case ARM::t2UXTB: NewOpc = ARM::tUXTB; break;
7642 // The operands aren't the same for thumb1 (no rotate operand).
7644 TmpInst.setOpcode(NewOpc);
7645 TmpInst.addOperand(Inst.getOperand(0));
7646 TmpInst.addOperand(Inst.getOperand(1));
7647 TmpInst.addOperand(Inst.getOperand(3));
7648 TmpInst.addOperand(Inst.getOperand(4));
7655 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(2).getImm());
7656 // rrx shifts and asr/lsr of #32 is encoded as 0
7657 if (SOpc == ARM_AM::rrx || SOpc == ARM_AM::asr || SOpc == ARM_AM::lsr)
7659 if (ARM_AM::getSORegOffset(Inst.getOperand(2).getImm()) == 0) {
7660 // Shifting by zero is accepted as a vanilla 'MOVr'
7662 TmpInst.setOpcode(ARM::MOVr);
7663 TmpInst.addOperand(Inst.getOperand(0));
7664 TmpInst.addOperand(Inst.getOperand(1));
7665 TmpInst.addOperand(Inst.getOperand(3));
7666 TmpInst.addOperand(Inst.getOperand(4));
7667 TmpInst.addOperand(Inst.getOperand(5));
7680 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(3).getImm());
7681 if (SOpc == ARM_AM::rrx) return false;
7682 switch (Inst.getOpcode()) {
7683 default: llvm_unreachable("unexpected opcode!");
7684 case ARM::ANDrsi: newOpc = ARM::ANDrr; break;
7685 case ARM::ORRrsi: newOpc = ARM::ORRrr; break;
7686 case ARM::EORrsi: newOpc = ARM::EORrr; break;
7687 case ARM::BICrsi: newOpc = ARM::BICrr; break;
7688 case ARM::SUBrsi: newOpc = ARM::SUBrr; break;
7689 case ARM::ADDrsi: newOpc = ARM::ADDrr; break;
7691 // If the shift is by zero, use the non-shifted instruction definition.
7692 // The exception is for right shifts, where 0 == 32
7693 if (ARM_AM::getSORegOffset(Inst.getOperand(3).getImm()) == 0 &&
7694 !(SOpc == ARM_AM::lsr || SOpc == ARM_AM::asr)) {
7696 TmpInst.setOpcode(newOpc);
7697 TmpInst.addOperand(Inst.getOperand(0));
7698 TmpInst.addOperand(Inst.getOperand(1));
7699 TmpInst.addOperand(Inst.getOperand(2));
7700 TmpInst.addOperand(Inst.getOperand(4));
7701 TmpInst.addOperand(Inst.getOperand(5));
7702 TmpInst.addOperand(Inst.getOperand(6));
7710 // The mask bits for all but the first condition are represented as
7711 // the low bit of the condition code value implies 't'. We currently
7712 // always have 1 implies 't', so XOR toggle the bits if the low bit
7713 // of the condition code is zero.
7714 MCOperand &MO = Inst.getOperand(1);
7715 unsigned Mask = MO.getImm();
7716 unsigned OrigMask = Mask;
7717 unsigned TZ = countTrailingZeros(Mask);
7718 if ((Inst.getOperand(0).getImm() & 1) == 0) {
7719 assert(Mask && TZ <= 3 && "illegal IT mask value!");
7720 Mask ^= (0xE << TZ) & 0xF;
7724 // Set up the IT block state according to the IT instruction we just
7726 assert(!inITBlock() && "nested IT blocks?!");
7727 ITState.Cond = ARMCC::CondCodes(Inst.getOperand(0).getImm());
7728 ITState.Mask = OrigMask; // Use the original mask, not the updated one.
7729 ITState.CurPosition = 0;
7730 ITState.FirstCond = true;
7740 // Assemblers should use the narrow encodings of these instructions when permissible.
7741 if ((isARMLowRegister(Inst.getOperand(1).getReg()) &&
7742 isARMLowRegister(Inst.getOperand(2).getReg())) &&
7743 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7744 ((!inITBlock() && Inst.getOperand(5).getReg() == ARM::CPSR) ||
7745 (inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR)) &&
7746 (!static_cast<ARMOperand*>(Operands[3])->isToken() ||
7747 !static_cast<ARMOperand*>(Operands[3])->getToken().equals_lower(".w"))) {
7749 switch (Inst.getOpcode()) {
7750 default: llvm_unreachable("unexpected opcode");
7751 case ARM::t2LSLrr: NewOpc = ARM::tLSLrr; break;
7752 case ARM::t2LSRrr: NewOpc = ARM::tLSRrr; break;
7753 case ARM::t2ASRrr: NewOpc = ARM::tASRrr; break;
7754 case ARM::t2SBCrr: NewOpc = ARM::tSBC; break;
7755 case ARM::t2RORrr: NewOpc = ARM::tROR; break;
7756 case ARM::t2BICrr: NewOpc = ARM::tBIC; break;
7759 TmpInst.setOpcode(NewOpc);
7760 TmpInst.addOperand(Inst.getOperand(0));
7761 TmpInst.addOperand(Inst.getOperand(5));
7762 TmpInst.addOperand(Inst.getOperand(1));
7763 TmpInst.addOperand(Inst.getOperand(2));
7764 TmpInst.addOperand(Inst.getOperand(3));
7765 TmpInst.addOperand(Inst.getOperand(4));
7776 // Assemblers should use the narrow encodings of these instructions when permissible.
7777 // These instructions are special in that they are commutable, so shorter encodings
7778 // are available more often.
7779 if ((isARMLowRegister(Inst.getOperand(1).getReg()) &&
7780 isARMLowRegister(Inst.getOperand(2).getReg())) &&
7781 (Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() ||
7782 Inst.getOperand(0).getReg() == Inst.getOperand(2).getReg()) &&
7783 ((!inITBlock() && Inst.getOperand(5).getReg() == ARM::CPSR) ||
7784 (inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR)) &&
7785 (!static_cast<ARMOperand*>(Operands[3])->isToken() ||
7786 !static_cast<ARMOperand*>(Operands[3])->getToken().equals_lower(".w"))) {
7788 switch (Inst.getOpcode()) {
7789 default: llvm_unreachable("unexpected opcode");
7790 case ARM::t2ADCrr: NewOpc = ARM::tADC; break;
7791 case ARM::t2ANDrr: NewOpc = ARM::tAND; break;
7792 case ARM::t2EORrr: NewOpc = ARM::tEOR; break;
7793 case ARM::t2ORRrr: NewOpc = ARM::tORR; break;
7796 TmpInst.setOpcode(NewOpc);
7797 TmpInst.addOperand(Inst.getOperand(0));
7798 TmpInst.addOperand(Inst.getOperand(5));
7799 if (Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg()) {
7800 TmpInst.addOperand(Inst.getOperand(1));
7801 TmpInst.addOperand(Inst.getOperand(2));
7803 TmpInst.addOperand(Inst.getOperand(2));
7804 TmpInst.addOperand(Inst.getOperand(1));
7806 TmpInst.addOperand(Inst.getOperand(3));
7807 TmpInst.addOperand(Inst.getOperand(4));
7817 unsigned ARMAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
7818 // 16-bit thumb arithmetic instructions either require or preclude the 'S'
7819 // suffix depending on whether they're in an IT block or not.
7820 unsigned Opc = Inst.getOpcode();
7821 const MCInstrDesc &MCID = MII.get(Opc);
7822 if (MCID.TSFlags & ARMII::ThumbArithFlagSetting) {
7823 assert(MCID.hasOptionalDef() &&
7824 "optionally flag setting instruction missing optional def operand");
7825 assert(MCID.NumOperands == Inst.getNumOperands() &&
7826 "operand count mismatch!");
7827 // Find the optional-def operand (cc_out).
7830 !MCID.OpInfo[OpNo].isOptionalDef() && OpNo < MCID.NumOperands;
7833 // If we're parsing Thumb1, reject it completely.
7834 if (isThumbOne() && Inst.getOperand(OpNo).getReg() != ARM::CPSR)
7835 return Match_MnemonicFail;
7836 // If we're parsing Thumb2, which form is legal depends on whether we're
7838 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() != ARM::CPSR &&
7840 return Match_RequiresITBlock;
7841 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() == ARM::CPSR &&
7843 return Match_RequiresNotITBlock;
7845 // Some high-register supporting Thumb1 encodings only allow both registers
7846 // to be from r0-r7 when in Thumb2.
7847 else if (Opc == ARM::tADDhirr && isThumbOne() &&
7848 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7849 isARMLowRegister(Inst.getOperand(2).getReg()))
7850 return Match_RequiresThumb2;
7851 // Others only require ARMv6 or later.
7852 else if (Opc == ARM::tMOVr && isThumbOne() && !hasV6Ops() &&
7853 isARMLowRegister(Inst.getOperand(0).getReg()) &&
7854 isARMLowRegister(Inst.getOperand(1).getReg()))
7855 return Match_RequiresV6;
7856 return Match_Success;
7859 template<> inline bool IsCPSRDead<MCInst>(MCInst* Instr) {
7860 return true; // In an assembly source, no need to second-guess
7863 static const char *getSubtargetFeatureName(unsigned Val);
7865 MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
7866 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
7867 MCStreamer &Out, unsigned &ErrorInfo,
7868 bool MatchingInlineAsm) {
7870 unsigned MatchResult;
7872 MatchResult = MatchInstructionImpl(Operands, Inst, ErrorInfo,
7874 switch (MatchResult) {
7877 // Context sensitive operand constraints aren't handled by the matcher,
7878 // so check them here.
7879 if (validateInstruction(Inst, Operands)) {
7880 // Still progress the IT block, otherwise one wrong condition causes
7881 // nasty cascading errors.
7882 forwardITPosition();
7886 { // processInstruction() updates inITBlock state, we need to save it away
7887 bool wasInITBlock = inITBlock();
7889 // Some instructions need post-processing to, for example, tweak which
7890 // encoding is selected. Loop on it while changes happen so the
7891 // individual transformations can chain off each other. E.g.,
7892 // tPOP(r8)->t2LDMIA_UPD(sp,r8)->t2STR_POST(sp,r8)
7893 while (processInstruction(Inst, Operands))
7896 // Only after the instruction is fully processed, we can validate it
7897 if (wasInITBlock && hasV8Ops() && isThumb() &&
7898 !isV8EligibleForIT(&Inst)) {
7899 Warning(IDLoc, "deprecated instruction in IT block");
7903 // Only move forward at the very end so that everything in validate
7904 // and process gets a consistent answer about whether we're in an IT
7906 forwardITPosition();
7908 // ITasm is an ARM mode pseudo-instruction that just sets the ITblock and
7909 // doesn't actually encode.
7910 if (Inst.getOpcode() == ARM::ITasm)
7914 Out.EmitInstruction(Inst, STI);
7916 case Match_MissingFeature: {
7917 assert(ErrorInfo && "Unknown missing feature!");
7918 // Special case the error message for the very common case where only
7919 // a single subtarget feature is missing (Thumb vs. ARM, e.g.).
7920 std::string Msg = "instruction requires:";
7922 for (unsigned i = 0; i < (sizeof(ErrorInfo)*8-1); ++i) {
7923 if (ErrorInfo & Mask) {
7925 Msg += getSubtargetFeatureName(ErrorInfo & Mask);
7929 return Error(IDLoc, Msg);
7931 case Match_InvalidOperand: {
7932 SMLoc ErrorLoc = IDLoc;
7933 if (ErrorInfo != ~0U) {
7934 if (ErrorInfo >= Operands.size())
7935 return Error(IDLoc, "too few operands for instruction");
7937 ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7938 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7941 return Error(ErrorLoc, "invalid operand for instruction");
7943 case Match_MnemonicFail:
7944 return Error(IDLoc, "invalid instruction",
7945 ((ARMOperand*)Operands[0])->getLocRange());
7946 case Match_RequiresNotITBlock:
7947 return Error(IDLoc, "flag setting instruction only valid outside IT block");
7948 case Match_RequiresITBlock:
7949 return Error(IDLoc, "instruction only valid inside IT block");
7950 case Match_RequiresV6:
7951 return Error(IDLoc, "instruction variant requires ARMv6 or later");
7952 case Match_RequiresThumb2:
7953 return Error(IDLoc, "instruction variant requires Thumb2");
7954 case Match_ImmRange0_15: {
7955 SMLoc ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7956 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7957 return Error(ErrorLoc, "immediate operand must be in the range [0,15]");
7959 case Match_ImmRange0_239: {
7960 SMLoc ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7961 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7962 return Error(ErrorLoc, "immediate operand must be in the range [0,239]");
7966 llvm_unreachable("Implement any new match types added!");
7969 /// parseDirective parses the arm specific directives
7970 bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) {
7971 StringRef IDVal = DirectiveID.getIdentifier();
7972 if (IDVal == ".word")
7973 return parseLiteralValues(4, DirectiveID.getLoc());
7974 else if (IDVal == ".short" || IDVal == ".hword")
7975 return parseLiteralValues(2, DirectiveID.getLoc());
7976 else if (IDVal == ".thumb")
7977 return parseDirectiveThumb(DirectiveID.getLoc());
7978 else if (IDVal == ".arm")
7979 return parseDirectiveARM(DirectiveID.getLoc());
7980 else if (IDVal == ".thumb_func")
7981 return parseDirectiveThumbFunc(DirectiveID.getLoc());
7982 else if (IDVal == ".code")
7983 return parseDirectiveCode(DirectiveID.getLoc());
7984 else if (IDVal == ".syntax")
7985 return parseDirectiveSyntax(DirectiveID.getLoc());
7986 else if (IDVal == ".unreq")
7987 return parseDirectiveUnreq(DirectiveID.getLoc());
7988 else if (IDVal == ".arch")
7989 return parseDirectiveArch(DirectiveID.getLoc());
7990 else if (IDVal == ".eabi_attribute")
7991 return parseDirectiveEabiAttr(DirectiveID.getLoc());
7992 else if (IDVal == ".cpu")
7993 return parseDirectiveCPU(DirectiveID.getLoc());
7994 else if (IDVal == ".fpu")
7995 return parseDirectiveFPU(DirectiveID.getLoc());
7996 else if (IDVal == ".fnstart")
7997 return parseDirectiveFnStart(DirectiveID.getLoc());
7998 else if (IDVal == ".fnend")
7999 return parseDirectiveFnEnd(DirectiveID.getLoc());
8000 else if (IDVal == ".cantunwind")
8001 return parseDirectiveCantUnwind(DirectiveID.getLoc());
8002 else if (IDVal == ".personality")
8003 return parseDirectivePersonality(DirectiveID.getLoc());
8004 else if (IDVal == ".handlerdata")
8005 return parseDirectiveHandlerData(DirectiveID.getLoc());
8006 else if (IDVal == ".setfp")
8007 return parseDirectiveSetFP(DirectiveID.getLoc());
8008 else if (IDVal == ".pad")
8009 return parseDirectivePad(DirectiveID.getLoc());
8010 else if (IDVal == ".save")
8011 return parseDirectiveRegSave(DirectiveID.getLoc(), false);
8012 else if (IDVal == ".vsave")
8013 return parseDirectiveRegSave(DirectiveID.getLoc(), true);
8014 else if (IDVal == ".inst")
8015 return parseDirectiveInst(DirectiveID.getLoc());
8016 else if (IDVal == ".inst.n")
8017 return parseDirectiveInst(DirectiveID.getLoc(), 'n');
8018 else if (IDVal == ".inst.w")
8019 return parseDirectiveInst(DirectiveID.getLoc(), 'w');
8020 else if (IDVal == ".ltorg" || IDVal == ".pool")
8021 return parseDirectiveLtorg(DirectiveID.getLoc());
8022 else if (IDVal == ".even")
8023 return parseDirectiveEven(DirectiveID.getLoc());
8024 else if (IDVal == ".personalityindex")
8025 return parseDirectivePersonalityIndex(DirectiveID.getLoc());
8026 else if (IDVal == ".unwind_raw")
8027 return parseDirectiveUnwindRaw(DirectiveID.getLoc());
8028 else if (IDVal == ".tlsdescseq")
8029 return parseDirectiveTLSDescSeq(DirectiveID.getLoc());
8030 else if (IDVal == ".movsp")
8031 return parseDirectiveMovSP(DirectiveID.getLoc());
8032 else if (IDVal == ".object_arch")
8033 return parseDirectiveObjectArch(DirectiveID.getLoc());
8034 else if (IDVal == ".arch_extension")
8035 return parseDirectiveArchExtension(DirectiveID.getLoc());
8036 else if (IDVal == ".align")
8037 return parseDirectiveAlign(DirectiveID.getLoc());
8038 else if (IDVal == ".thumb_set")
8039 return parseDirectiveThumbSet(DirectiveID.getLoc());
8043 /// parseLiteralValues
8044 /// ::= .hword expression [, expression]*
8045 /// ::= .short expression [, expression]*
8046 /// ::= .word expression [, expression]*
8047 bool ARMAsmParser::parseLiteralValues(unsigned Size, SMLoc L) {
8048 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8050 const MCExpr *Value;
8051 if (getParser().parseExpression(Value)) {
8052 Parser.eatToEndOfStatement();
8056 getParser().getStreamer().EmitValue(Value, Size);
8058 if (getLexer().is(AsmToken::EndOfStatement))
8061 // FIXME: Improve diagnostic.
8062 if (getLexer().isNot(AsmToken::Comma)) {
8063 Error(L, "unexpected token in directive");
8074 /// parseDirectiveThumb
8076 bool ARMAsmParser::parseDirectiveThumb(SMLoc L) {
8077 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8078 Error(L, "unexpected token in directive");
8084 Error(L, "target does not support Thumb mode");
8091 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
8095 /// parseDirectiveARM
8097 bool ARMAsmParser::parseDirectiveARM(SMLoc L) {
8098 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8099 Error(L, "unexpected token in directive");
8105 Error(L, "target does not support ARM mode");
8112 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
8116 void ARMAsmParser::onLabelParsed(MCSymbol *Symbol) {
8117 if (NextSymbolIsThumb) {
8118 getParser().getStreamer().EmitThumbFunc(Symbol);
8119 NextSymbolIsThumb = false;
8126 const MCObjectFileInfo::Environment Format =
8127 getContext().getObjectFileInfo()->getObjectFileType();
8129 case MCObjectFileInfo::IsCOFF: {
8130 const MCSymbolData &SD =
8131 getParser().getStreamer().getOrCreateSymbolData(Symbol);
8132 char Type = COFF::IMAGE_SYM_DTYPE_FUNCTION << COFF::SCT_COMPLEX_TYPE_SHIFT;
8133 if (SD.getFlags() & (Type << COFF::SF_TypeShift))
8134 getParser().getStreamer().EmitThumbFunc(Symbol);
8137 case MCObjectFileInfo::IsELF: {
8138 const MCSymbolData &SD =
8139 getParser().getStreamer().getOrCreateSymbolData(Symbol);
8140 if (MCELF::GetType(SD) & (ELF::STT_FUNC << ELF_STT_Shift))
8141 getParser().getStreamer().EmitThumbFunc(Symbol);
8144 case MCObjectFileInfo::IsMachO:
8149 /// parseDirectiveThumbFunc
8150 /// ::= .thumbfunc symbol_name
8151 bool ARMAsmParser::parseDirectiveThumbFunc(SMLoc L) {
8152 const MCAsmInfo *MAI = getParser().getStreamer().getContext().getAsmInfo();
8153 bool isMachO = MAI->hasSubsectionsViaSymbols();
8155 // Darwin asm has (optionally) function name after .thumb_func direction
8158 const AsmToken &Tok = Parser.getTok();
8159 if (Tok.isNot(AsmToken::EndOfStatement)) {
8160 if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String)) {
8161 Error(L, "unexpected token in .thumb_func directive");
8166 getParser().getContext().GetOrCreateSymbol(Tok.getIdentifier());
8167 getParser().getStreamer().EmitThumbFunc(Func);
8168 Parser.Lex(); // Consume the identifier token.
8173 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8174 Error(L, "unexpected token in directive");
8178 NextSymbolIsThumb = true;
8182 /// parseDirectiveSyntax
8183 /// ::= .syntax unified | divided
8184 bool ARMAsmParser::parseDirectiveSyntax(SMLoc L) {
8185 const AsmToken &Tok = Parser.getTok();
8186 if (Tok.isNot(AsmToken::Identifier)) {
8187 Error(L, "unexpected token in .syntax directive");
8191 StringRef Mode = Tok.getString();
8192 if (Mode == "unified" || Mode == "UNIFIED") {
8194 } else if (Mode == "divided" || Mode == "DIVIDED") {
8195 Error(L, "'.syntax divided' arm asssembly not supported");
8198 Error(L, "unrecognized syntax mode in .syntax directive");
8202 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8203 Error(Parser.getTok().getLoc(), "unexpected token in directive");
8208 // TODO tell the MC streamer the mode
8209 // getParser().getStreamer().Emit???();
8213 /// parseDirectiveCode
8214 /// ::= .code 16 | 32
8215 bool ARMAsmParser::parseDirectiveCode(SMLoc L) {
8216 const AsmToken &Tok = Parser.getTok();
8217 if (Tok.isNot(AsmToken::Integer)) {
8218 Error(L, "unexpected token in .code directive");
8221 int64_t Val = Parser.getTok().getIntVal();
8222 if (Val != 16 && Val != 32) {
8223 Error(L, "invalid operand to .code directive");
8228 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8229 Error(Parser.getTok().getLoc(), "unexpected token in directive");
8236 Error(L, "target does not support Thumb mode");
8242 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
8245 Error(L, "target does not support ARM mode");
8251 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
8257 /// parseDirectiveReq
8258 /// ::= name .req registername
8259 bool ARMAsmParser::parseDirectiveReq(StringRef Name, SMLoc L) {
8260 Parser.Lex(); // Eat the '.req' token.
8262 SMLoc SRegLoc, ERegLoc;
8263 if (ParseRegister(Reg, SRegLoc, ERegLoc)) {
8264 Parser.eatToEndOfStatement();
8265 Error(SRegLoc, "register name expected");
8269 // Shouldn't be anything else.
8270 if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
8271 Parser.eatToEndOfStatement();
8272 Error(Parser.getTok().getLoc(), "unexpected input in .req directive.");
8276 Parser.Lex(); // Consume the EndOfStatement
8278 if (RegisterReqs.GetOrCreateValue(Name, Reg).getValue() != Reg) {
8279 Error(SRegLoc, "redefinition of '" + Name + "' does not match original.");
8286 /// parseDirectiveUneq
8287 /// ::= .unreq registername
8288 bool ARMAsmParser::parseDirectiveUnreq(SMLoc L) {
8289 if (Parser.getTok().isNot(AsmToken::Identifier)) {
8290 Parser.eatToEndOfStatement();
8291 Error(L, "unexpected input in .unreq directive.");
8294 RegisterReqs.erase(Parser.getTok().getIdentifier().lower());
8295 Parser.Lex(); // Eat the identifier.
8299 /// parseDirectiveArch
8301 bool ARMAsmParser::parseDirectiveArch(SMLoc L) {
8302 StringRef Arch = getParser().parseStringToEndOfStatement().trim();
8304 unsigned ID = StringSwitch<unsigned>(Arch)
8305 #define ARM_ARCH_NAME(NAME, ID, DEFAULT_CPU_NAME, DEFAULT_CPU_ARCH) \
8306 .Case(NAME, ARM::ID)
8307 #define ARM_ARCH_ALIAS(NAME, ID) \
8308 .Case(NAME, ARM::ID)
8309 #include "MCTargetDesc/ARMArchName.def"
8310 .Default(ARM::INVALID_ARCH);
8312 if (ID == ARM::INVALID_ARCH) {
8313 Error(L, "Unknown arch name");
8317 getTargetStreamer().emitArch(ID);
8321 /// parseDirectiveEabiAttr
8322 /// ::= .eabi_attribute int, int [, "str"]
8323 /// ::= .eabi_attribute Tag_name, int [, "str"]
8324 bool ARMAsmParser::parseDirectiveEabiAttr(SMLoc L) {
8328 TagLoc = Parser.getTok().getLoc();
8329 if (Parser.getTok().is(AsmToken::Identifier)) {
8330 StringRef Name = Parser.getTok().getIdentifier();
8331 Tag = ARMBuildAttrs::AttrTypeFromString(Name);
8333 Error(TagLoc, "attribute name not recognised: " + Name);
8334 Parser.eatToEndOfStatement();
8339 const MCExpr *AttrExpr;
8341 TagLoc = Parser.getTok().getLoc();
8342 if (Parser.parseExpression(AttrExpr)) {
8343 Parser.eatToEndOfStatement();
8347 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(AttrExpr);
8349 Error(TagLoc, "expected numeric constant");
8350 Parser.eatToEndOfStatement();
8354 Tag = CE->getValue();
8357 if (Parser.getTok().isNot(AsmToken::Comma)) {
8358 Error(Parser.getTok().getLoc(), "comma expected");
8359 Parser.eatToEndOfStatement();
8362 Parser.Lex(); // skip comma
8364 StringRef StringValue = "";
8365 bool IsStringValue = false;
8367 int64_t IntegerValue = 0;
8368 bool IsIntegerValue = false;
8370 if (Tag == ARMBuildAttrs::CPU_raw_name || Tag == ARMBuildAttrs::CPU_name)
8371 IsStringValue = true;
8372 else if (Tag == ARMBuildAttrs::compatibility) {
8373 IsStringValue = true;
8374 IsIntegerValue = true;
8375 } else if (Tag < 32 || Tag % 2 == 0)
8376 IsIntegerValue = true;
8377 else if (Tag % 2 == 1)
8378 IsStringValue = true;
8380 llvm_unreachable("invalid tag type");
8382 if (IsIntegerValue) {
8383 const MCExpr *ValueExpr;
8384 SMLoc ValueExprLoc = Parser.getTok().getLoc();
8385 if (Parser.parseExpression(ValueExpr)) {
8386 Parser.eatToEndOfStatement();
8390 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ValueExpr);
8392 Error(ValueExprLoc, "expected numeric constant");
8393 Parser.eatToEndOfStatement();
8397 IntegerValue = CE->getValue();
8400 if (Tag == ARMBuildAttrs::compatibility) {
8401 if (Parser.getTok().isNot(AsmToken::Comma))
8402 IsStringValue = false;
8407 if (IsStringValue) {
8408 if (Parser.getTok().isNot(AsmToken::String)) {
8409 Error(Parser.getTok().getLoc(), "bad string constant");
8410 Parser.eatToEndOfStatement();
8414 StringValue = Parser.getTok().getStringContents();
8418 if (IsIntegerValue && IsStringValue) {
8419 assert(Tag == ARMBuildAttrs::compatibility);
8420 getTargetStreamer().emitIntTextAttribute(Tag, IntegerValue, StringValue);
8421 } else if (IsIntegerValue)
8422 getTargetStreamer().emitAttribute(Tag, IntegerValue);
8423 else if (IsStringValue)
8424 getTargetStreamer().emitTextAttribute(Tag, StringValue);
8428 /// parseDirectiveCPU
8430 bool ARMAsmParser::parseDirectiveCPU(SMLoc L) {
8431 StringRef CPU = getParser().parseStringToEndOfStatement().trim();
8432 getTargetStreamer().emitTextAttribute(ARMBuildAttrs::CPU_name, CPU);
8436 /// parseDirectiveFPU
8438 bool ARMAsmParser::parseDirectiveFPU(SMLoc L) {
8439 StringRef FPU = getParser().parseStringToEndOfStatement().trim();
8441 unsigned ID = StringSwitch<unsigned>(FPU)
8442 #define ARM_FPU_NAME(NAME, ID) .Case(NAME, ARM::ID)
8443 #include "ARMFPUName.def"
8444 .Default(ARM::INVALID_FPU);
8446 if (ID == ARM::INVALID_FPU) {
8447 Error(L, "Unknown FPU name");
8451 getTargetStreamer().emitFPU(ID);
8455 /// parseDirectiveFnStart
8457 bool ARMAsmParser::parseDirectiveFnStart(SMLoc L) {
8458 if (UC.hasFnStart()) {
8459 Error(L, ".fnstart starts before the end of previous one");
8460 UC.emitFnStartLocNotes();
8464 // Reset the unwind directives parser state
8467 getTargetStreamer().emitFnStart();
8469 UC.recordFnStart(L);
8473 /// parseDirectiveFnEnd
8475 bool ARMAsmParser::parseDirectiveFnEnd(SMLoc L) {
8476 // Check the ordering of unwind directives
8477 if (!UC.hasFnStart()) {
8478 Error(L, ".fnstart must precede .fnend directive");
8482 // Reset the unwind directives parser state
8483 getTargetStreamer().emitFnEnd();
8489 /// parseDirectiveCantUnwind
8491 bool ARMAsmParser::parseDirectiveCantUnwind(SMLoc L) {
8492 UC.recordCantUnwind(L);
8494 // Check the ordering of unwind directives
8495 if (!UC.hasFnStart()) {
8496 Error(L, ".fnstart must precede .cantunwind directive");
8499 if (UC.hasHandlerData()) {
8500 Error(L, ".cantunwind can't be used with .handlerdata directive");
8501 UC.emitHandlerDataLocNotes();
8504 if (UC.hasPersonality()) {
8505 Error(L, ".cantunwind can't be used with .personality directive");
8506 UC.emitPersonalityLocNotes();
8510 getTargetStreamer().emitCantUnwind();
8514 /// parseDirectivePersonality
8515 /// ::= .personality name
8516 bool ARMAsmParser::parseDirectivePersonality(SMLoc L) {
8517 bool HasExistingPersonality = UC.hasPersonality();
8519 UC.recordPersonality(L);
8521 // Check the ordering of unwind directives
8522 if (!UC.hasFnStart()) {
8523 Error(L, ".fnstart must precede .personality directive");
8526 if (UC.cantUnwind()) {
8527 Error(L, ".personality can't be used with .cantunwind directive");
8528 UC.emitCantUnwindLocNotes();
8531 if (UC.hasHandlerData()) {
8532 Error(L, ".personality must precede .handlerdata directive");
8533 UC.emitHandlerDataLocNotes();
8536 if (HasExistingPersonality) {
8537 Parser.eatToEndOfStatement();
8538 Error(L, "multiple personality directives");
8539 UC.emitPersonalityLocNotes();
8543 // Parse the name of the personality routine
8544 if (Parser.getTok().isNot(AsmToken::Identifier)) {
8545 Parser.eatToEndOfStatement();
8546 Error(L, "unexpected input in .personality directive.");
8549 StringRef Name(Parser.getTok().getIdentifier());
8552 MCSymbol *PR = getParser().getContext().GetOrCreateSymbol(Name);
8553 getTargetStreamer().emitPersonality(PR);
8557 /// parseDirectiveHandlerData
8558 /// ::= .handlerdata
8559 bool ARMAsmParser::parseDirectiveHandlerData(SMLoc L) {
8560 UC.recordHandlerData(L);
8562 // Check the ordering of unwind directives
8563 if (!UC.hasFnStart()) {
8564 Error(L, ".fnstart must precede .personality directive");
8567 if (UC.cantUnwind()) {
8568 Error(L, ".handlerdata can't be used with .cantunwind directive");
8569 UC.emitCantUnwindLocNotes();
8573 getTargetStreamer().emitHandlerData();
8577 /// parseDirectiveSetFP
8578 /// ::= .setfp fpreg, spreg [, offset]
8579 bool ARMAsmParser::parseDirectiveSetFP(SMLoc L) {
8580 // Check the ordering of unwind directives
8581 if (!UC.hasFnStart()) {
8582 Error(L, ".fnstart must precede .setfp directive");
8585 if (UC.hasHandlerData()) {
8586 Error(L, ".setfp must precede .handlerdata directive");
8591 SMLoc FPRegLoc = Parser.getTok().getLoc();
8592 int FPReg = tryParseRegister();
8594 Error(FPRegLoc, "frame pointer register expected");
8599 if (Parser.getTok().isNot(AsmToken::Comma)) {
8600 Error(Parser.getTok().getLoc(), "comma expected");
8603 Parser.Lex(); // skip comma
8606 SMLoc SPRegLoc = Parser.getTok().getLoc();
8607 int SPReg = tryParseRegister();
8609 Error(SPRegLoc, "stack pointer register expected");
8613 if (SPReg != ARM::SP && SPReg != UC.getFPReg()) {
8614 Error(SPRegLoc, "register should be either $sp or the latest fp register");
8618 // Update the frame pointer register
8619 UC.saveFPReg(FPReg);
8623 if (Parser.getTok().is(AsmToken::Comma)) {
8624 Parser.Lex(); // skip comma
8626 if (Parser.getTok().isNot(AsmToken::Hash) &&
8627 Parser.getTok().isNot(AsmToken::Dollar)) {
8628 Error(Parser.getTok().getLoc(), "'#' expected");
8631 Parser.Lex(); // skip hash token.
8633 const MCExpr *OffsetExpr;
8634 SMLoc ExLoc = Parser.getTok().getLoc();
8636 if (getParser().parseExpression(OffsetExpr, EndLoc)) {
8637 Error(ExLoc, "malformed setfp offset");
8640 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8642 Error(ExLoc, "setfp offset must be an immediate");
8646 Offset = CE->getValue();
8649 getTargetStreamer().emitSetFP(static_cast<unsigned>(FPReg),
8650 static_cast<unsigned>(SPReg), Offset);
8656 bool ARMAsmParser::parseDirectivePad(SMLoc L) {
8657 // Check the ordering of unwind directives
8658 if (!UC.hasFnStart()) {
8659 Error(L, ".fnstart must precede .pad directive");
8662 if (UC.hasHandlerData()) {
8663 Error(L, ".pad must precede .handlerdata directive");
8668 if (Parser.getTok().isNot(AsmToken::Hash) &&
8669 Parser.getTok().isNot(AsmToken::Dollar)) {
8670 Error(Parser.getTok().getLoc(), "'#' expected");
8673 Parser.Lex(); // skip hash token.
8675 const MCExpr *OffsetExpr;
8676 SMLoc ExLoc = Parser.getTok().getLoc();
8678 if (getParser().parseExpression(OffsetExpr, EndLoc)) {
8679 Error(ExLoc, "malformed pad offset");
8682 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8684 Error(ExLoc, "pad offset must be an immediate");
8688 getTargetStreamer().emitPad(CE->getValue());
8692 /// parseDirectiveRegSave
8693 /// ::= .save { registers }
8694 /// ::= .vsave { registers }
8695 bool ARMAsmParser::parseDirectiveRegSave(SMLoc L, bool IsVector) {
8696 // Check the ordering of unwind directives
8697 if (!UC.hasFnStart()) {
8698 Error(L, ".fnstart must precede .save or .vsave directives");
8701 if (UC.hasHandlerData()) {
8702 Error(L, ".save or .vsave must precede .handlerdata directive");
8706 // RAII object to make sure parsed operands are deleted.
8707 struct CleanupObject {
8708 SmallVector<MCParsedAsmOperand *, 1> Operands;
8710 for (unsigned I = 0, E = Operands.size(); I != E; ++I)
8715 // Parse the register list
8716 if (parseRegisterList(CO.Operands))
8718 ARMOperand *Op = (ARMOperand*)CO.Operands[0];
8719 if (!IsVector && !Op->isRegList()) {
8720 Error(L, ".save expects GPR registers");
8723 if (IsVector && !Op->isDPRRegList()) {
8724 Error(L, ".vsave expects DPR registers");
8728 getTargetStreamer().emitRegSave(Op->getRegList(), IsVector);
8732 /// parseDirectiveInst
8733 /// ::= .inst opcode [, ...]
8734 /// ::= .inst.n opcode [, ...]
8735 /// ::= .inst.w opcode [, ...]
8736 bool ARMAsmParser::parseDirectiveInst(SMLoc Loc, char Suffix) {
8748 Parser.eatToEndOfStatement();
8749 Error(Loc, "cannot determine Thumb instruction size, "
8750 "use inst.n/inst.w instead");
8755 Parser.eatToEndOfStatement();
8756 Error(Loc, "width suffixes are invalid in ARM mode");
8762 if (getLexer().is(AsmToken::EndOfStatement)) {
8763 Parser.eatToEndOfStatement();
8764 Error(Loc, "expected expression following directive");
8771 if (getParser().parseExpression(Expr)) {
8772 Error(Loc, "expected expression");
8776 const MCConstantExpr *Value = dyn_cast_or_null<MCConstantExpr>(Expr);
8778 Error(Loc, "expected constant expression");
8784 if (Value->getValue() > 0xffff) {
8785 Error(Loc, "inst.n operand is too big, use inst.w instead");
8790 if (Value->getValue() > 0xffffffff) {
8792 StringRef(Suffix ? "inst.w" : "inst") + " operand is too big");
8797 llvm_unreachable("only supported widths are 2 and 4");
8800 getTargetStreamer().emitInst(Value->getValue(), Suffix);
8802 if (getLexer().is(AsmToken::EndOfStatement))
8805 if (getLexer().isNot(AsmToken::Comma)) {
8806 Error(Loc, "unexpected token in directive");
8817 /// parseDirectiveLtorg
8818 /// ::= .ltorg | .pool
8819 bool ARMAsmParser::parseDirectiveLtorg(SMLoc L) {
8820 getTargetStreamer().emitCurrentConstantPool();
8824 bool ARMAsmParser::parseDirectiveEven(SMLoc L) {
8825 const MCSection *Section = getStreamer().getCurrentSection().first;
8827 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8828 TokError("unexpected token in directive");
8833 getStreamer().InitSections();
8834 Section = getStreamer().getCurrentSection().first;
8837 assert(Section && "must have section to emit alignment");
8838 if (Section->UseCodeAlign())
8839 getStreamer().EmitCodeAlignment(2);
8841 getStreamer().EmitValueToAlignment(2);
8846 /// parseDirectivePersonalityIndex
8847 /// ::= .personalityindex index
8848 bool ARMAsmParser::parseDirectivePersonalityIndex(SMLoc L) {
8849 bool HasExistingPersonality = UC.hasPersonality();
8851 UC.recordPersonalityIndex(L);
8853 if (!UC.hasFnStart()) {
8854 Parser.eatToEndOfStatement();
8855 Error(L, ".fnstart must precede .personalityindex directive");
8858 if (UC.cantUnwind()) {
8859 Parser.eatToEndOfStatement();
8860 Error(L, ".personalityindex cannot be used with .cantunwind");
8861 UC.emitCantUnwindLocNotes();
8864 if (UC.hasHandlerData()) {
8865 Parser.eatToEndOfStatement();
8866 Error(L, ".personalityindex must precede .handlerdata directive");
8867 UC.emitHandlerDataLocNotes();
8870 if (HasExistingPersonality) {
8871 Parser.eatToEndOfStatement();
8872 Error(L, "multiple personality directives");
8873 UC.emitPersonalityLocNotes();
8877 const MCExpr *IndexExpression;
8878 SMLoc IndexLoc = Parser.getTok().getLoc();
8879 if (Parser.parseExpression(IndexExpression)) {
8880 Parser.eatToEndOfStatement();
8884 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(IndexExpression);
8886 Parser.eatToEndOfStatement();
8887 Error(IndexLoc, "index must be a constant number");
8890 if (CE->getValue() < 0 ||
8891 CE->getValue() >= ARM::EHABI::NUM_PERSONALITY_INDEX) {
8892 Parser.eatToEndOfStatement();
8893 Error(IndexLoc, "personality routine index should be in range [0-3]");
8897 getTargetStreamer().emitPersonalityIndex(CE->getValue());
8901 /// parseDirectiveUnwindRaw
8902 /// ::= .unwind_raw offset, opcode [, opcode...]
8903 bool ARMAsmParser::parseDirectiveUnwindRaw(SMLoc L) {
8904 if (!UC.hasFnStart()) {
8905 Parser.eatToEndOfStatement();
8906 Error(L, ".fnstart must precede .unwind_raw directives");
8910 int64_t StackOffset;
8912 const MCExpr *OffsetExpr;
8913 SMLoc OffsetLoc = getLexer().getLoc();
8914 if (getLexer().is(AsmToken::EndOfStatement) ||
8915 getParser().parseExpression(OffsetExpr)) {
8916 Error(OffsetLoc, "expected expression");
8917 Parser.eatToEndOfStatement();
8921 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8923 Error(OffsetLoc, "offset must be a constant");
8924 Parser.eatToEndOfStatement();
8928 StackOffset = CE->getValue();
8930 if (getLexer().isNot(AsmToken::Comma)) {
8931 Error(getLexer().getLoc(), "expected comma");
8932 Parser.eatToEndOfStatement();
8937 SmallVector<uint8_t, 16> Opcodes;
8941 SMLoc OpcodeLoc = getLexer().getLoc();
8942 if (getLexer().is(AsmToken::EndOfStatement) || Parser.parseExpression(OE)) {
8943 Error(OpcodeLoc, "expected opcode expression");
8944 Parser.eatToEndOfStatement();
8948 const MCConstantExpr *OC = dyn_cast<MCConstantExpr>(OE);
8950 Error(OpcodeLoc, "opcode value must be a constant");
8951 Parser.eatToEndOfStatement();
8955 const int64_t Opcode = OC->getValue();
8956 if (Opcode & ~0xff) {
8957 Error(OpcodeLoc, "invalid opcode");
8958 Parser.eatToEndOfStatement();
8962 Opcodes.push_back(uint8_t(Opcode));
8964 if (getLexer().is(AsmToken::EndOfStatement))
8967 if (getLexer().isNot(AsmToken::Comma)) {
8968 Error(getLexer().getLoc(), "unexpected token in directive");
8969 Parser.eatToEndOfStatement();
8976 getTargetStreamer().emitUnwindRaw(StackOffset, Opcodes);
8982 /// parseDirectiveTLSDescSeq
8983 /// ::= .tlsdescseq tls-variable
8984 bool ARMAsmParser::parseDirectiveTLSDescSeq(SMLoc L) {
8985 if (getLexer().isNot(AsmToken::Identifier)) {
8986 TokError("expected variable after '.tlsdescseq' directive");
8987 Parser.eatToEndOfStatement();
8991 const MCSymbolRefExpr *SRE =
8992 MCSymbolRefExpr::Create(Parser.getTok().getIdentifier(),
8993 MCSymbolRefExpr::VK_ARM_TLSDESCSEQ, getContext());
8996 if (getLexer().isNot(AsmToken::EndOfStatement)) {
8997 Error(Parser.getTok().getLoc(), "unexpected token");
8998 Parser.eatToEndOfStatement();
9002 getTargetStreamer().AnnotateTLSDescriptorSequence(SRE);
9006 /// parseDirectiveMovSP
9007 /// ::= .movsp reg [, #offset]
9008 bool ARMAsmParser::parseDirectiveMovSP(SMLoc L) {
9009 if (!UC.hasFnStart()) {
9010 Parser.eatToEndOfStatement();
9011 Error(L, ".fnstart must precede .movsp directives");
9014 if (UC.getFPReg() != ARM::SP) {
9015 Parser.eatToEndOfStatement();
9016 Error(L, "unexpected .movsp directive");
9020 SMLoc SPRegLoc = Parser.getTok().getLoc();
9021 int SPReg = tryParseRegister();
9023 Parser.eatToEndOfStatement();
9024 Error(SPRegLoc, "register expected");
9028 if (SPReg == ARM::SP || SPReg == ARM::PC) {
9029 Parser.eatToEndOfStatement();
9030 Error(SPRegLoc, "sp and pc are not permitted in .movsp directive");
9035 if (Parser.getTok().is(AsmToken::Comma)) {
9038 if (Parser.getTok().isNot(AsmToken::Hash)) {
9039 Error(Parser.getTok().getLoc(), "expected #constant");
9040 Parser.eatToEndOfStatement();
9045 const MCExpr *OffsetExpr;
9046 SMLoc OffsetLoc = Parser.getTok().getLoc();
9047 if (Parser.parseExpression(OffsetExpr)) {
9048 Parser.eatToEndOfStatement();
9049 Error(OffsetLoc, "malformed offset expression");
9053 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
9055 Parser.eatToEndOfStatement();
9056 Error(OffsetLoc, "offset must be an immediate constant");
9060 Offset = CE->getValue();
9063 getTargetStreamer().emitMovSP(SPReg, Offset);
9064 UC.saveFPReg(SPReg);
9069 /// parseDirectiveObjectArch
9070 /// ::= .object_arch name
9071 bool ARMAsmParser::parseDirectiveObjectArch(SMLoc L) {
9072 if (getLexer().isNot(AsmToken::Identifier)) {
9073 Error(getLexer().getLoc(), "unexpected token");
9074 Parser.eatToEndOfStatement();
9078 StringRef Arch = Parser.getTok().getString();
9079 SMLoc ArchLoc = Parser.getTok().getLoc();
9082 unsigned ID = StringSwitch<unsigned>(Arch)
9083 #define ARM_ARCH_NAME(NAME, ID, DEFAULT_CPU_NAME, DEFAULT_CPU_ARCH) \
9084 .Case(NAME, ARM::ID)
9085 #define ARM_ARCH_ALIAS(NAME, ID) \
9086 .Case(NAME, ARM::ID)
9087 #include "MCTargetDesc/ARMArchName.def"
9088 #undef ARM_ARCH_NAME
9089 #undef ARM_ARCH_ALIAS
9090 .Default(ARM::INVALID_ARCH);
9092 if (ID == ARM::INVALID_ARCH) {
9093 Error(ArchLoc, "unknown architecture '" + Arch + "'");
9094 Parser.eatToEndOfStatement();
9098 getTargetStreamer().emitObjectArch(ID);
9100 if (getLexer().isNot(AsmToken::EndOfStatement)) {
9101 Error(getLexer().getLoc(), "unexpected token");
9102 Parser.eatToEndOfStatement();
9108 /// parseDirectiveAlign
9110 bool ARMAsmParser::parseDirectiveAlign(SMLoc L) {
9111 // NOTE: if this is not the end of the statement, fall back to the target
9112 // agnostic handling for this directive which will correctly handle this.
9113 if (getLexer().isNot(AsmToken::EndOfStatement))
9116 // '.align' is target specifically handled to mean 2**2 byte alignment.
9117 if (getStreamer().getCurrentSection().first->UseCodeAlign())
9118 getStreamer().EmitCodeAlignment(4, 0);
9120 getStreamer().EmitValueToAlignment(4, 0, 1, 0);
9125 /// parseDirectiveThumbSet
9126 /// ::= .thumb_set name, value
9127 bool ARMAsmParser::parseDirectiveThumbSet(SMLoc L) {
9129 if (Parser.parseIdentifier(Name)) {
9130 TokError("expected identifier after '.thumb_set'");
9131 Parser.eatToEndOfStatement();
9135 if (getLexer().isNot(AsmToken::Comma)) {
9136 TokError("expected comma after name '" + Name + "'");
9137 Parser.eatToEndOfStatement();
9142 const MCExpr *Value;
9143 if (Parser.parseExpression(Value)) {
9144 TokError("missing expression");
9145 Parser.eatToEndOfStatement();
9149 if (getLexer().isNot(AsmToken::EndOfStatement)) {
9150 TokError("unexpected token");
9151 Parser.eatToEndOfStatement();
9156 MCSymbol *Alias = getContext().GetOrCreateSymbol(Name);
9157 if (const MCSymbolRefExpr *SRE = dyn_cast<MCSymbolRefExpr>(Value)) {
9158 MCSymbol *Sym = getContext().LookupSymbol(SRE->getSymbol().getName());
9159 if (!Sym->isDefined()) {
9160 getStreamer().EmitSymbolAttribute(Sym, MCSA_Global);
9161 getStreamer().EmitAssignment(Alias, Value);
9165 const MCObjectFileInfo::Environment Format =
9166 getContext().getObjectFileInfo()->getObjectFileType();
9168 case MCObjectFileInfo::IsCOFF: {
9169 char Type = COFF::IMAGE_SYM_DTYPE_FUNCTION << COFF::SCT_COMPLEX_TYPE_SHIFT;
9170 getStreamer().EmitCOFFSymbolType(Type);
9171 // .set values are always local in COFF
9172 getStreamer().EmitSymbolAttribute(Alias, MCSA_Local);
9175 case MCObjectFileInfo::IsELF:
9176 getStreamer().EmitSymbolAttribute(Alias, MCSA_ELF_TypeFunction);
9178 case MCObjectFileInfo::IsMachO:
9183 // FIXME: set the function as being a thumb function via the assembler
9184 getStreamer().EmitThumbFunc(Alias);
9185 getStreamer().EmitAssignment(Alias, Value);
9190 /// Force static initialization.
9191 extern "C" void LLVMInitializeARMAsmParser() {
9192 RegisterMCAsmParser<ARMAsmParser> X(TheARMTarget);
9193 RegisterMCAsmParser<ARMAsmParser> Y(TheThumbTarget);
9196 #define GET_REGISTER_MATCHER
9197 #define GET_SUBTARGET_FEATURE_NAME
9198 #define GET_MATCHER_IMPLEMENTATION
9199 #include "ARMGenAsmMatcher.inc"
9201 static const struct ExtMapEntry {
9202 const char *Extension;
9203 const unsigned ArchCheck;
9204 const uint64_t Features;
9206 { "crc", Feature_HasV8, ARM::FeatureCRC },
9207 { "crypto", Feature_HasV8,
9208 ARM::FeatureCrypto | ARM::FeatureNEON | ARM::FeatureFPARMv8 },
9209 { "fp", Feature_HasV8, ARM::FeatureFPARMv8 },
9210 { "idiv", Feature_HasV7 | Feature_IsNotMClass,
9211 ARM::FeatureHWDiv | ARM::FeatureHWDivARM },
9212 // FIXME: iWMMXT not supported
9213 { "iwmmxt", Feature_None, 0 },
9214 // FIXME: iWMMXT2 not supported
9215 { "iwmmxt2", Feature_None, 0 },
9216 // FIXME: Maverick not supported
9217 { "maverick", Feature_None, 0 },
9218 { "mp", Feature_HasV7 | Feature_IsNotMClass, ARM::FeatureMP },
9219 // FIXME: ARMv6-m OS Extensions feature not checked
9220 { "os", Feature_None, 0 },
9221 // FIXME: Also available in ARMv6-K
9222 { "sec", Feature_HasV7, ARM::FeatureTrustZone },
9223 { "simd", Feature_HasV8, ARM::FeatureNEON | ARM::FeatureFPARMv8 },
9224 // FIXME: Only available in A-class, isel not predicated
9225 { "virt", Feature_HasV7, ARM::FeatureVirtualization },
9226 // FIXME: xscale not supported
9227 { "xscale", Feature_None, 0 },
9230 /// parseDirectiveArchExtension
9231 /// ::= .arch_extension [no]feature
9232 bool ARMAsmParser::parseDirectiveArchExtension(SMLoc L) {
9233 if (getLexer().isNot(AsmToken::Identifier)) {
9234 Error(getLexer().getLoc(), "unexpected token");
9235 Parser.eatToEndOfStatement();
9239 StringRef Extension = Parser.getTok().getString();
9240 SMLoc ExtLoc = Parser.getTok().getLoc();
9243 bool EnableFeature = true;
9244 if (Extension.startswith_lower("no")) {
9245 EnableFeature = false;
9246 Extension = Extension.substr(2);
9249 for (unsigned EI = 0, EE = array_lengthof(Extensions); EI != EE; ++EI) {
9250 if (Extensions[EI].Extension != Extension)
9253 unsigned FB = getAvailableFeatures();
9254 if ((FB & Extensions[EI].ArchCheck) != Extensions[EI].ArchCheck) {
9255 Error(ExtLoc, "architectural extension '" + Extension + "' is not "
9256 "allowed for the current base architecture");
9260 if (!Extensions[EI].Features)
9261 report_fatal_error("unsupported architectural extension: " + Extension);
9264 FB |= ComputeAvailableFeatures(Extensions[EI].Features);
9266 FB &= ~ComputeAvailableFeatures(Extensions[EI].Features);
9268 setAvailableFeatures(FB);
9272 Error(ExtLoc, "unknown architectural extension: " + Extension);
9273 Parser.eatToEndOfStatement();
9277 // Define this matcher function after the auto-generated include so we
9278 // have the match class enum definitions.
9279 unsigned ARMAsmParser::validateTargetOperandClass(MCParsedAsmOperand *AsmOp,
9281 ARMOperand *Op = static_cast<ARMOperand*>(AsmOp);
9282 // If the kind is a token for a literal immediate, check if our asm
9283 // operand matches. This is for InstAliases which have a fixed-value
9284 // immediate in the syntax.
9289 if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm()))
9290 if (CE->getValue() == 0)
9291 return Match_Success;
9295 const MCExpr *SOExpr = Op->getImm();
9297 if (!SOExpr->EvaluateAsAbsolute(Value))
9298 return Match_Success;
9299 assert((Value >= INT32_MIN && Value <= INT32_MAX) &&
9300 "expression value must be representiable in 32 bits");
9305 MRI->getRegClass(ARM::GPRRegClassID).contains(Op->getReg()))
9306 return Match_Success;
9309 return Match_InvalidOperand;