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 "llvm/MC/MCTargetAsmParser.h"
11 #include "MCTargetDesc/ARMAddressingModes.h"
12 #include "MCTargetDesc/ARMBaseInfo.h"
13 #include "MCTargetDesc/ARMMCExpr.h"
14 #include "llvm/ADT/BitVector.h"
15 #include "llvm/ADT/OwningPtr.h"
16 #include "llvm/ADT/STLExtras.h"
17 #include "llvm/ADT/SmallVector.h"
18 #include "llvm/ADT/StringSwitch.h"
19 #include "llvm/ADT/Twine.h"
20 #include "llvm/MC/MCAsmInfo.h"
21 #include "llvm/MC/MCAssembler.h"
22 #include "llvm/MC/MCContext.h"
23 #include "llvm/MC/MCELFStreamer.h"
24 #include "llvm/MC/MCExpr.h"
25 #include "llvm/MC/MCInst.h"
26 #include "llvm/MC/MCInstrDesc.h"
27 #include "llvm/MC/MCParser/MCAsmLexer.h"
28 #include "llvm/MC/MCParser/MCAsmParser.h"
29 #include "llvm/MC/MCParser/MCParsedAsmOperand.h"
30 #include "llvm/MC/MCRegisterInfo.h"
31 #include "llvm/MC/MCStreamer.h"
32 #include "llvm/MC/MCSubtargetInfo.h"
33 #include "llvm/Support/ELF.h"
34 #include "llvm/Support/MathExtras.h"
35 #include "llvm/Support/SourceMgr.h"
36 #include "llvm/Support/TargetRegistry.h"
37 #include "llvm/Support/raw_ostream.h"
45 enum VectorLaneTy { NoLanes, AllLanes, IndexedLane };
47 class ARMAsmParser : public MCTargetAsmParser {
50 const MCRegisterInfo *MRI;
52 // Unwind directives state
58 void resetUnwindDirectiveParserState() {
60 CantUnwindLoc = SMLoc();
61 PersonalityLoc = SMLoc();
62 HandlerDataLoc = SMLoc();
66 // Map of register aliases registers via the .req directive.
67 StringMap<unsigned> RegisterReqs;
70 ARMCC::CondCodes Cond; // Condition for IT block.
71 unsigned Mask:4; // Condition mask for instructions.
72 // Starting at first 1 (from lsb).
73 // '1' condition as indicated in IT.
74 // '0' inverse of condition (else).
75 // Count of instructions in IT block is
76 // 4 - trailingzeroes(mask)
78 bool FirstCond; // Explicit flag for when we're parsing the
79 // First instruction in the IT block. It's
80 // implied in the mask, so needs special
83 unsigned CurPosition; // Current position in parsing of IT
84 // block. In range [0,3]. Initialized
85 // according to count of instructions in block.
86 // ~0U if no active IT block.
88 bool inITBlock() { return ITState.CurPosition != ~0U;}
89 void forwardITPosition() {
90 if (!inITBlock()) return;
91 // Move to the next instruction in the IT block, if there is one. If not,
92 // mark the block as done.
93 unsigned TZ = countTrailingZeros(ITState.Mask);
94 if (++ITState.CurPosition == 5 - TZ)
95 ITState.CurPosition = ~0U; // Done with the IT block after this.
99 MCAsmParser &getParser() const { return Parser; }
100 MCAsmLexer &getLexer() const { return Parser.getLexer(); }
102 bool Warning(SMLoc L, const Twine &Msg,
103 ArrayRef<SMRange> Ranges = None) {
104 return Parser.Warning(L, Msg, Ranges);
106 bool Error(SMLoc L, const Twine &Msg,
107 ArrayRef<SMRange> Ranges = None) {
108 return Parser.Error(L, Msg, Ranges);
111 int tryParseRegister();
112 bool tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &);
113 int tryParseShiftRegister(SmallVectorImpl<MCParsedAsmOperand*> &);
114 bool parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &);
115 bool parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &);
116 bool parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &, StringRef Mnemonic);
117 bool parsePrefix(ARMMCExpr::VariantKind &RefKind);
118 bool parseMemRegOffsetShift(ARM_AM::ShiftOpc &ShiftType,
119 unsigned &ShiftAmount);
120 bool parseDirectiveWord(unsigned Size, SMLoc L);
121 bool parseDirectiveThumb(SMLoc L);
122 bool parseDirectiveARM(SMLoc L);
123 bool parseDirectiveThumbFunc(SMLoc L);
124 bool parseDirectiveCode(SMLoc L);
125 bool parseDirectiveSyntax(SMLoc L);
126 bool parseDirectiveReq(StringRef Name, SMLoc L);
127 bool parseDirectiveUnreq(SMLoc L);
128 bool parseDirectiveArch(SMLoc L);
129 bool parseDirectiveEabiAttr(SMLoc L);
130 bool parseDirectiveFnStart(SMLoc L);
131 bool parseDirectiveFnEnd(SMLoc L);
132 bool parseDirectiveCantUnwind(SMLoc L);
133 bool parseDirectivePersonality(SMLoc L);
134 bool parseDirectiveHandlerData(SMLoc L);
135 bool parseDirectiveSetFP(SMLoc L);
136 bool parseDirectivePad(SMLoc L);
137 bool parseDirectiveRegSave(SMLoc L, bool IsVector);
139 StringRef splitMnemonic(StringRef Mnemonic, unsigned &PredicationCode,
140 bool &CarrySetting, unsigned &ProcessorIMod,
142 void getMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
143 bool &CanAcceptPredicationCode);
145 bool isThumb() const {
146 // FIXME: Can tablegen auto-generate this?
147 return (STI.getFeatureBits() & ARM::ModeThumb) != 0;
149 bool isThumbOne() const {
150 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2) == 0;
152 bool isThumbTwo() const {
153 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2);
155 bool hasThumb() const {
156 return STI.getFeatureBits() & ARM::HasV4TOps;
158 bool hasV6Ops() const {
159 return STI.getFeatureBits() & ARM::HasV6Ops;
161 bool hasV7Ops() const {
162 return STI.getFeatureBits() & ARM::HasV7Ops;
164 bool hasARM() const {
165 return !(STI.getFeatureBits() & ARM::FeatureNoARM);
169 unsigned FB = ComputeAvailableFeatures(STI.ToggleFeature(ARM::ModeThumb));
170 setAvailableFeatures(FB);
172 bool isMClass() const {
173 return STI.getFeatureBits() & ARM::FeatureMClass;
176 /// @name Auto-generated Match Functions
179 #define GET_ASSEMBLER_HEADER
180 #include "ARMGenAsmMatcher.inc"
184 OperandMatchResultTy parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*>&);
185 OperandMatchResultTy parseCoprocNumOperand(
186 SmallVectorImpl<MCParsedAsmOperand*>&);
187 OperandMatchResultTy parseCoprocRegOperand(
188 SmallVectorImpl<MCParsedAsmOperand*>&);
189 OperandMatchResultTy parseCoprocOptionOperand(
190 SmallVectorImpl<MCParsedAsmOperand*>&);
191 OperandMatchResultTy parseMemBarrierOptOperand(
192 SmallVectorImpl<MCParsedAsmOperand*>&);
193 OperandMatchResultTy parseInstSyncBarrierOptOperand(
194 SmallVectorImpl<MCParsedAsmOperand*>&);
195 OperandMatchResultTy parseProcIFlagsOperand(
196 SmallVectorImpl<MCParsedAsmOperand*>&);
197 OperandMatchResultTy parseMSRMaskOperand(
198 SmallVectorImpl<MCParsedAsmOperand*>&);
199 OperandMatchResultTy parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &O,
200 StringRef Op, int Low, int High);
201 OperandMatchResultTy parsePKHLSLImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
202 return parsePKHImm(O, "lsl", 0, 31);
204 OperandMatchResultTy parsePKHASRImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
205 return parsePKHImm(O, "asr", 1, 32);
207 OperandMatchResultTy parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*>&);
208 OperandMatchResultTy parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*>&);
209 OperandMatchResultTy parseRotImm(SmallVectorImpl<MCParsedAsmOperand*>&);
210 OperandMatchResultTy parseBitfield(SmallVectorImpl<MCParsedAsmOperand*>&);
211 OperandMatchResultTy parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*>&);
212 OperandMatchResultTy parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*>&);
213 OperandMatchResultTy parseFPImm(SmallVectorImpl<MCParsedAsmOperand*>&);
214 OperandMatchResultTy parseVectorList(SmallVectorImpl<MCParsedAsmOperand*>&);
215 OperandMatchResultTy parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index,
218 // Asm Match Converter Methods
219 void cvtT2LdrdPre(MCInst &Inst, const SmallVectorImpl<MCParsedAsmOperand*> &);
220 void cvtT2StrdPre(MCInst &Inst, const SmallVectorImpl<MCParsedAsmOperand*> &);
221 void cvtLdWriteBackRegT2AddrModeImm8(MCInst &Inst,
222 const SmallVectorImpl<MCParsedAsmOperand*> &);
223 void cvtStWriteBackRegT2AddrModeImm8(MCInst &Inst,
224 const SmallVectorImpl<MCParsedAsmOperand*> &);
225 void cvtLdWriteBackRegAddrMode2(MCInst &Inst,
226 const SmallVectorImpl<MCParsedAsmOperand*> &);
227 void cvtLdWriteBackRegAddrModeImm12(MCInst &Inst,
228 const SmallVectorImpl<MCParsedAsmOperand*> &);
229 void cvtStWriteBackRegAddrModeImm12(MCInst &Inst,
230 const SmallVectorImpl<MCParsedAsmOperand*> &);
231 void cvtStWriteBackRegAddrMode2(MCInst &Inst,
232 const SmallVectorImpl<MCParsedAsmOperand*> &);
233 void cvtStWriteBackRegAddrMode3(MCInst &Inst,
234 const SmallVectorImpl<MCParsedAsmOperand*> &);
235 void cvtLdExtTWriteBackImm(MCInst &Inst,
236 const SmallVectorImpl<MCParsedAsmOperand*> &);
237 void cvtLdExtTWriteBackReg(MCInst &Inst,
238 const SmallVectorImpl<MCParsedAsmOperand*> &);
239 void cvtStExtTWriteBackImm(MCInst &Inst,
240 const SmallVectorImpl<MCParsedAsmOperand*> &);
241 void cvtStExtTWriteBackReg(MCInst &Inst,
242 const SmallVectorImpl<MCParsedAsmOperand*> &);
243 void cvtLdrdPre(MCInst &Inst, const SmallVectorImpl<MCParsedAsmOperand*> &);
244 void cvtStrdPre(MCInst &Inst, const SmallVectorImpl<MCParsedAsmOperand*> &);
245 void cvtLdWriteBackRegAddrMode3(MCInst &Inst,
246 const SmallVectorImpl<MCParsedAsmOperand*> &);
247 void cvtThumbMultiply(MCInst &Inst,
248 const SmallVectorImpl<MCParsedAsmOperand*> &);
249 void cvtVLDwbFixed(MCInst &Inst,
250 const SmallVectorImpl<MCParsedAsmOperand*> &);
251 void cvtVLDwbRegister(MCInst &Inst,
252 const SmallVectorImpl<MCParsedAsmOperand*> &);
253 void cvtVSTwbFixed(MCInst &Inst,
254 const SmallVectorImpl<MCParsedAsmOperand*> &);
255 void cvtVSTwbRegister(MCInst &Inst,
256 const SmallVectorImpl<MCParsedAsmOperand*> &);
257 bool validateInstruction(MCInst &Inst,
258 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
259 bool processInstruction(MCInst &Inst,
260 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
261 bool shouldOmitCCOutOperand(StringRef Mnemonic,
262 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
265 enum ARMMatchResultTy {
266 Match_RequiresITBlock = FIRST_TARGET_MATCH_RESULT_TY,
267 Match_RequiresNotITBlock,
269 Match_RequiresThumb2,
270 #define GET_OPERAND_DIAGNOSTIC_TYPES
271 #include "ARMGenAsmMatcher.inc"
275 ARMAsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser)
276 : MCTargetAsmParser(), STI(_STI), Parser(_Parser), FPReg(-1) {
277 MCAsmParserExtension::Initialize(_Parser);
279 // Cache the MCRegisterInfo.
280 MRI = getContext().getRegisterInfo();
282 // Initialize the set of available features.
283 setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
285 // Not in an ITBlock to start with.
286 ITState.CurPosition = ~0U;
288 // Set ELF header flags.
289 // FIXME: This should eventually end up somewhere else where more
290 // intelligent flag decisions can be made. For now we are just maintaining
291 // the statu/parseDirects quo for ARM and setting EF_ARM_EABI_VER5 as the default.
292 if (MCELFStreamer *MES = dyn_cast<MCELFStreamer>(&Parser.getStreamer()))
293 MES->getAssembler().setELFHeaderEFlags(ELF::EF_ARM_EABI_VER5);
296 // Implementation of the MCTargetAsmParser interface:
297 bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc);
298 bool ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
300 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
301 bool ParseDirective(AsmToken DirectiveID);
303 unsigned validateTargetOperandClass(MCParsedAsmOperand *Op, unsigned Kind);
304 unsigned checkTargetMatchPredicate(MCInst &Inst);
306 bool MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
307 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
308 MCStreamer &Out, unsigned &ErrorInfo,
309 bool MatchingInlineAsm);
311 } // end anonymous namespace
315 /// ARMOperand - Instances of this class represent a parsed ARM machine
317 class ARMOperand : public MCParsedAsmOperand {
327 k_InstSyncBarrierOpt,
338 k_VectorListAllLanes,
344 k_BitfieldDescriptor,
348 SMLoc StartLoc, EndLoc;
349 SmallVector<unsigned, 8> Registers;
352 ARMCC::CondCodes Val;
359 struct CoprocOptionOp {
372 ARM_ISB::InstSyncBOpt Val;
376 ARM_PROC::IFlags Val;
392 // A vector register list is a sequential list of 1 to 4 registers.
393 struct VectorListOp {
400 struct VectorIndexOp {
408 /// Combined record for all forms of ARM address expressions.
411 // Offset is in OffsetReg or OffsetImm. If both are zero, no offset
413 const MCConstantExpr *OffsetImm; // Offset immediate value
414 unsigned OffsetRegNum; // Offset register num, when OffsetImm == NULL
415 ARM_AM::ShiftOpc ShiftType; // Shift type for OffsetReg
416 unsigned ShiftImm; // shift for OffsetReg.
417 unsigned Alignment; // 0 = no alignment specified
418 // n = alignment in bytes (2, 4, 8, 16, or 32)
419 unsigned isNegative : 1; // Negated OffsetReg? (~'U' bit)
422 struct PostIdxRegOp {
425 ARM_AM::ShiftOpc ShiftTy;
429 struct ShifterImmOp {
434 struct RegShiftedRegOp {
435 ARM_AM::ShiftOpc ShiftTy;
441 struct RegShiftedImmOp {
442 ARM_AM::ShiftOpc ShiftTy;
459 struct CoprocOptionOp CoprocOption;
460 struct MBOptOp MBOpt;
461 struct ISBOptOp ISBOpt;
462 struct ITMaskOp ITMask;
463 struct IFlagsOp IFlags;
464 struct MMaskOp MMask;
467 struct VectorListOp VectorList;
468 struct VectorIndexOp VectorIndex;
470 struct MemoryOp Memory;
471 struct PostIdxRegOp PostIdxReg;
472 struct ShifterImmOp ShifterImm;
473 struct RegShiftedRegOp RegShiftedReg;
474 struct RegShiftedImmOp RegShiftedImm;
475 struct RotImmOp RotImm;
476 struct BitfieldOp Bitfield;
479 ARMOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
481 ARMOperand(const ARMOperand &o) : MCParsedAsmOperand() {
483 StartLoc = o.StartLoc;
500 case k_DPRRegisterList:
501 case k_SPRRegisterList:
502 Registers = o.Registers;
505 case k_VectorListAllLanes:
506 case k_VectorListIndexed:
507 VectorList = o.VectorList;
514 CoprocOption = o.CoprocOption;
519 case k_MemBarrierOpt:
522 case k_InstSyncBarrierOpt:
527 case k_PostIndexRegister:
528 PostIdxReg = o.PostIdxReg;
536 case k_ShifterImmediate:
537 ShifterImm = o.ShifterImm;
539 case k_ShiftedRegister:
540 RegShiftedReg = o.RegShiftedReg;
542 case k_ShiftedImmediate:
543 RegShiftedImm = o.RegShiftedImm;
545 case k_RotateImmediate:
548 case k_BitfieldDescriptor:
549 Bitfield = o.Bitfield;
552 VectorIndex = o.VectorIndex;
557 /// getStartLoc - Get the location of the first token of this operand.
558 SMLoc getStartLoc() const { return StartLoc; }
559 /// getEndLoc - Get the location of the last token of this operand.
560 SMLoc getEndLoc() const { return EndLoc; }
561 /// getLocRange - Get the range between the first and last token of this
563 SMRange getLocRange() const { return SMRange(StartLoc, EndLoc); }
565 ARMCC::CondCodes getCondCode() const {
566 assert(Kind == k_CondCode && "Invalid access!");
570 unsigned getCoproc() const {
571 assert((Kind == k_CoprocNum || Kind == k_CoprocReg) && "Invalid access!");
575 StringRef getToken() const {
576 assert(Kind == k_Token && "Invalid access!");
577 return StringRef(Tok.Data, Tok.Length);
580 unsigned getReg() const {
581 assert((Kind == k_Register || Kind == k_CCOut) && "Invalid access!");
585 const SmallVectorImpl<unsigned> &getRegList() const {
586 assert((Kind == k_RegisterList || Kind == k_DPRRegisterList ||
587 Kind == k_SPRRegisterList) && "Invalid access!");
591 const MCExpr *getImm() const {
592 assert(isImm() && "Invalid access!");
596 unsigned getVectorIndex() const {
597 assert(Kind == k_VectorIndex && "Invalid access!");
598 return VectorIndex.Val;
601 ARM_MB::MemBOpt getMemBarrierOpt() const {
602 assert(Kind == k_MemBarrierOpt && "Invalid access!");
606 ARM_ISB::InstSyncBOpt getInstSyncBarrierOpt() const {
607 assert(Kind == k_InstSyncBarrierOpt && "Invalid access!");
611 ARM_PROC::IFlags getProcIFlags() const {
612 assert(Kind == k_ProcIFlags && "Invalid access!");
616 unsigned getMSRMask() const {
617 assert(Kind == k_MSRMask && "Invalid access!");
621 bool isCoprocNum() const { return Kind == k_CoprocNum; }
622 bool isCoprocReg() const { return Kind == k_CoprocReg; }
623 bool isCoprocOption() const { return Kind == k_CoprocOption; }
624 bool isCondCode() const { return Kind == k_CondCode; }
625 bool isCCOut() const { return Kind == k_CCOut; }
626 bool isITMask() const { return Kind == k_ITCondMask; }
627 bool isITCondCode() const { return Kind == k_CondCode; }
628 bool isImm() const { return Kind == k_Immediate; }
629 bool isFPImm() const {
630 if (!isImm()) return false;
631 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
632 if (!CE) return false;
633 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
636 bool isFBits16() const {
637 if (!isImm()) return false;
638 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
639 if (!CE) return false;
640 int64_t Value = CE->getValue();
641 return Value >= 0 && Value <= 16;
643 bool isFBits32() const {
644 if (!isImm()) return false;
645 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
646 if (!CE) return false;
647 int64_t Value = CE->getValue();
648 return Value >= 1 && Value <= 32;
650 bool isImm8s4() const {
651 if (!isImm()) return false;
652 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
653 if (!CE) return false;
654 int64_t Value = CE->getValue();
655 return ((Value & 3) == 0) && Value >= -1020 && Value <= 1020;
657 bool isImm0_4() const {
658 if (!isImm()) return false;
659 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
660 if (!CE) return false;
661 int64_t Value = CE->getValue();
662 return Value >= 0 && Value < 5;
664 bool isImm0_1020s4() const {
665 if (!isImm()) return false;
666 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
667 if (!CE) return false;
668 int64_t Value = CE->getValue();
669 return ((Value & 3) == 0) && Value >= 0 && Value <= 1020;
671 bool isImm0_508s4() const {
672 if (!isImm()) return false;
673 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
674 if (!CE) return false;
675 int64_t Value = CE->getValue();
676 return ((Value & 3) == 0) && Value >= 0 && Value <= 508;
678 bool isImm0_508s4Neg() const {
679 if (!isImm()) return false;
680 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
681 if (!CE) return false;
682 int64_t Value = -CE->getValue();
683 // explicitly exclude zero. we want that to use the normal 0_508 version.
684 return ((Value & 3) == 0) && Value > 0 && Value <= 508;
686 bool isImm0_255() const {
687 if (!isImm()) return false;
688 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
689 if (!CE) return false;
690 int64_t Value = CE->getValue();
691 return Value >= 0 && Value < 256;
693 bool isImm0_4095() const {
694 if (!isImm()) return false;
695 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
696 if (!CE) return false;
697 int64_t Value = CE->getValue();
698 return Value >= 0 && Value < 4096;
700 bool isImm0_4095Neg() const {
701 if (!isImm()) return false;
702 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
703 if (!CE) return false;
704 int64_t Value = -CE->getValue();
705 return Value > 0 && Value < 4096;
707 bool isImm0_1() const {
708 if (!isImm()) return false;
709 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
710 if (!CE) return false;
711 int64_t Value = CE->getValue();
712 return Value >= 0 && Value < 2;
714 bool isImm0_3() const {
715 if (!isImm()) return false;
716 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
717 if (!CE) return false;
718 int64_t Value = CE->getValue();
719 return Value >= 0 && Value < 4;
721 bool isImm0_7() const {
722 if (!isImm()) return false;
723 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
724 if (!CE) return false;
725 int64_t Value = CE->getValue();
726 return Value >= 0 && Value < 8;
728 bool isImm0_15() const {
729 if (!isImm()) return false;
730 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
731 if (!CE) return false;
732 int64_t Value = CE->getValue();
733 return Value >= 0 && Value < 16;
735 bool isImm0_31() const {
736 if (!isImm()) return false;
737 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
738 if (!CE) return false;
739 int64_t Value = CE->getValue();
740 return Value >= 0 && Value < 32;
742 bool isImm0_63() const {
743 if (!isImm()) return false;
744 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
745 if (!CE) return false;
746 int64_t Value = CE->getValue();
747 return Value >= 0 && Value < 64;
749 bool isImm8() const {
750 if (!isImm()) return false;
751 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
752 if (!CE) return false;
753 int64_t Value = CE->getValue();
756 bool isImm16() const {
757 if (!isImm()) return false;
758 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
759 if (!CE) return false;
760 int64_t Value = CE->getValue();
763 bool isImm32() const {
764 if (!isImm()) return false;
765 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
766 if (!CE) return false;
767 int64_t Value = CE->getValue();
770 bool isShrImm8() const {
771 if (!isImm()) return false;
772 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
773 if (!CE) return false;
774 int64_t Value = CE->getValue();
775 return Value > 0 && Value <= 8;
777 bool isShrImm16() const {
778 if (!isImm()) return false;
779 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
780 if (!CE) return false;
781 int64_t Value = CE->getValue();
782 return Value > 0 && Value <= 16;
784 bool isShrImm32() const {
785 if (!isImm()) return false;
786 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
787 if (!CE) return false;
788 int64_t Value = CE->getValue();
789 return Value > 0 && Value <= 32;
791 bool isShrImm64() const {
792 if (!isImm()) return false;
793 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
794 if (!CE) return false;
795 int64_t Value = CE->getValue();
796 return Value > 0 && Value <= 64;
798 bool isImm1_7() const {
799 if (!isImm()) return false;
800 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
801 if (!CE) return false;
802 int64_t Value = CE->getValue();
803 return Value > 0 && Value < 8;
805 bool isImm1_15() const {
806 if (!isImm()) return false;
807 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
808 if (!CE) return false;
809 int64_t Value = CE->getValue();
810 return Value > 0 && Value < 16;
812 bool isImm1_31() const {
813 if (!isImm()) return false;
814 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
815 if (!CE) return false;
816 int64_t Value = CE->getValue();
817 return Value > 0 && Value < 32;
819 bool isImm1_16() const {
820 if (!isImm()) return false;
821 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
822 if (!CE) return false;
823 int64_t Value = CE->getValue();
824 return Value > 0 && Value < 17;
826 bool isImm1_32() const {
827 if (!isImm()) return false;
828 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
829 if (!CE) return false;
830 int64_t Value = CE->getValue();
831 return Value > 0 && Value < 33;
833 bool isImm0_32() const {
834 if (!isImm()) return false;
835 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
836 if (!CE) return false;
837 int64_t Value = CE->getValue();
838 return Value >= 0 && Value < 33;
840 bool isImm0_65535() const {
841 if (!isImm()) return false;
842 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
843 if (!CE) return false;
844 int64_t Value = CE->getValue();
845 return Value >= 0 && Value < 65536;
847 bool isImm0_65535Expr() const {
848 if (!isImm()) return false;
849 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
850 // If it's not a constant expression, it'll generate a fixup and be
852 if (!CE) return true;
853 int64_t Value = CE->getValue();
854 return Value >= 0 && Value < 65536;
856 bool isImm24bit() const {
857 if (!isImm()) return false;
858 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
859 if (!CE) return false;
860 int64_t Value = CE->getValue();
861 return Value >= 0 && Value <= 0xffffff;
863 bool isImmThumbSR() const {
864 if (!isImm()) return false;
865 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
866 if (!CE) return false;
867 int64_t Value = CE->getValue();
868 return Value > 0 && Value < 33;
870 bool isPKHLSLImm() const {
871 if (!isImm()) return false;
872 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
873 if (!CE) return false;
874 int64_t Value = CE->getValue();
875 return Value >= 0 && Value < 32;
877 bool isPKHASRImm() const {
878 if (!isImm()) return false;
879 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
880 if (!CE) return false;
881 int64_t Value = CE->getValue();
882 return Value > 0 && Value <= 32;
884 bool isAdrLabel() const {
885 // If we have an immediate that's not a constant, treat it as a label
886 // reference needing a fixup. If it is a constant, but it can't fit
887 // into shift immediate encoding, we reject it.
888 if (isImm() && !isa<MCConstantExpr>(getImm())) return true;
889 else return (isARMSOImm() || isARMSOImmNeg());
891 bool isARMSOImm() const {
892 if (!isImm()) return false;
893 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
894 if (!CE) return false;
895 int64_t Value = CE->getValue();
896 return ARM_AM::getSOImmVal(Value) != -1;
898 bool isARMSOImmNot() const {
899 if (!isImm()) return false;
900 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
901 if (!CE) return false;
902 int64_t Value = CE->getValue();
903 return ARM_AM::getSOImmVal(~Value) != -1;
905 bool isARMSOImmNeg() const {
906 if (!isImm()) return false;
907 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
908 if (!CE) return false;
909 int64_t Value = CE->getValue();
910 // Only use this when not representable as a plain so_imm.
911 return ARM_AM::getSOImmVal(Value) == -1 &&
912 ARM_AM::getSOImmVal(-Value) != -1;
914 bool isT2SOImm() 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 ARM_AM::getT2SOImmVal(Value) != -1;
921 bool isT2SOImmNot() 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 ARM_AM::getT2SOImmVal(~Value) != -1;
928 bool isT2SOImmNeg() 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 // Only use this when not representable as a plain so_imm.
934 return ARM_AM::getT2SOImmVal(Value) == -1 &&
935 ARM_AM::getT2SOImmVal(-Value) != -1;
937 bool isSetEndImm() const {
938 if (!isImm()) return false;
939 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
940 if (!CE) return false;
941 int64_t Value = CE->getValue();
942 return Value == 1 || Value == 0;
944 bool isReg() const { return Kind == k_Register; }
945 bool isRegList() const { return Kind == k_RegisterList; }
946 bool isDPRRegList() const { return Kind == k_DPRRegisterList; }
947 bool isSPRRegList() const { return Kind == k_SPRRegisterList; }
948 bool isToken() const { return Kind == k_Token; }
949 bool isMemBarrierOpt() const { return Kind == k_MemBarrierOpt; }
950 bool isInstSyncBarrierOpt() const { return Kind == k_InstSyncBarrierOpt; }
951 bool isMem() const { return Kind == k_Memory; }
952 bool isShifterImm() const { return Kind == k_ShifterImmediate; }
953 bool isRegShiftedReg() const { return Kind == k_ShiftedRegister; }
954 bool isRegShiftedImm() const { return Kind == k_ShiftedImmediate; }
955 bool isRotImm() const { return Kind == k_RotateImmediate; }
956 bool isBitfield() const { return Kind == k_BitfieldDescriptor; }
957 bool isPostIdxRegShifted() const { return Kind == k_PostIndexRegister; }
958 bool isPostIdxReg() const {
959 return Kind == k_PostIndexRegister && PostIdxReg.ShiftTy ==ARM_AM::no_shift;
961 bool isMemNoOffset(bool alignOK = false) const {
964 // No offset of any kind.
965 return Memory.OffsetRegNum == 0 && Memory.OffsetImm == 0 &&
966 (alignOK || Memory.Alignment == 0);
968 bool isMemPCRelImm12() const {
969 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
971 // Base register must be PC.
972 if (Memory.BaseRegNum != ARM::PC)
974 // Immediate offset in range [-4095, 4095].
975 if (!Memory.OffsetImm) return true;
976 int64_t Val = Memory.OffsetImm->getValue();
977 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
979 bool isAlignedMemory() const {
980 return isMemNoOffset(true);
982 bool isAddrMode2() const {
983 if (!isMem() || Memory.Alignment != 0) return false;
984 // Check for register offset.
985 if (Memory.OffsetRegNum) return true;
986 // Immediate offset in range [-4095, 4095].
987 if (!Memory.OffsetImm) return true;
988 int64_t Val = Memory.OffsetImm->getValue();
989 return Val > -4096 && Val < 4096;
991 bool isAM2OffsetImm() const {
992 if (!isImm()) return false;
993 // Immediate offset in range [-4095, 4095].
994 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
995 if (!CE) return false;
996 int64_t Val = CE->getValue();
997 return (Val == INT32_MIN) || (Val > -4096 && Val < 4096);
999 bool isAddrMode3() const {
1000 // If we have an immediate that's not a constant, treat it as a label
1001 // reference needing a fixup. If it is a constant, it's something else
1002 // and we reject it.
1003 if (isImm() && !isa<MCConstantExpr>(getImm()))
1005 if (!isMem() || Memory.Alignment != 0) return false;
1006 // No shifts are legal for AM3.
1007 if (Memory.ShiftType != ARM_AM::no_shift) return false;
1008 // Check for register offset.
1009 if (Memory.OffsetRegNum) return true;
1010 // Immediate offset in range [-255, 255].
1011 if (!Memory.OffsetImm) return true;
1012 int64_t Val = Memory.OffsetImm->getValue();
1013 // The #-0 offset is encoded as INT32_MIN, and we have to check
1015 return (Val > -256 && Val < 256) || Val == INT32_MIN;
1017 bool isAM3Offset() const {
1018 if (Kind != k_Immediate && Kind != k_PostIndexRegister)
1020 if (Kind == k_PostIndexRegister)
1021 return PostIdxReg.ShiftTy == ARM_AM::no_shift;
1022 // Immediate offset in range [-255, 255].
1023 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1024 if (!CE) return false;
1025 int64_t Val = CE->getValue();
1026 // Special case, #-0 is INT32_MIN.
1027 return (Val > -256 && Val < 256) || Val == INT32_MIN;
1029 bool isAddrMode5() const {
1030 // If we have an immediate that's not a constant, treat it as a label
1031 // reference needing a fixup. If it is a constant, it's something else
1032 // and we reject it.
1033 if (isImm() && !isa<MCConstantExpr>(getImm()))
1035 if (!isMem() || Memory.Alignment != 0) return false;
1036 // Check for register offset.
1037 if (Memory.OffsetRegNum) return false;
1038 // Immediate offset in range [-1020, 1020] and a multiple of 4.
1039 if (!Memory.OffsetImm) return true;
1040 int64_t Val = Memory.OffsetImm->getValue();
1041 return (Val >= -1020 && Val <= 1020 && ((Val & 3) == 0)) ||
1044 bool isMemTBB() const {
1045 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1046 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
1050 bool isMemTBH() const {
1051 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1052 Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm != 1 ||
1053 Memory.Alignment != 0 )
1057 bool isMemRegOffset() const {
1058 if (!isMem() || !Memory.OffsetRegNum || Memory.Alignment != 0)
1062 bool isT2MemRegOffset() const {
1063 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1064 Memory.Alignment != 0)
1066 // Only lsl #{0, 1, 2, 3} allowed.
1067 if (Memory.ShiftType == ARM_AM::no_shift)
1069 if (Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm > 3)
1073 bool isMemThumbRR() const {
1074 // Thumb reg+reg addressing is simple. Just two registers, a base and
1075 // an offset. No shifts, negations or any other complicating factors.
1076 if (!isMem() || !Memory.OffsetRegNum || Memory.isNegative ||
1077 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
1079 return isARMLowRegister(Memory.BaseRegNum) &&
1080 (!Memory.OffsetRegNum || isARMLowRegister(Memory.OffsetRegNum));
1082 bool isMemThumbRIs4() const {
1083 if (!isMem() || Memory.OffsetRegNum != 0 ||
1084 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1086 // Immediate offset, multiple of 4 in range [0, 124].
1087 if (!Memory.OffsetImm) return true;
1088 int64_t Val = Memory.OffsetImm->getValue();
1089 return Val >= 0 && Val <= 124 && (Val % 4) == 0;
1091 bool isMemThumbRIs2() const {
1092 if (!isMem() || Memory.OffsetRegNum != 0 ||
1093 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1095 // Immediate offset, multiple of 4 in range [0, 62].
1096 if (!Memory.OffsetImm) return true;
1097 int64_t Val = Memory.OffsetImm->getValue();
1098 return Val >= 0 && Val <= 62 && (Val % 2) == 0;
1100 bool isMemThumbRIs1() const {
1101 if (!isMem() || Memory.OffsetRegNum != 0 ||
1102 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
1104 // Immediate offset in range [0, 31].
1105 if (!Memory.OffsetImm) return true;
1106 int64_t Val = Memory.OffsetImm->getValue();
1107 return Val >= 0 && Val <= 31;
1109 bool isMemThumbSPI() const {
1110 if (!isMem() || Memory.OffsetRegNum != 0 ||
1111 Memory.BaseRegNum != ARM::SP || Memory.Alignment != 0)
1113 // Immediate offset, multiple of 4 in range [0, 1020].
1114 if (!Memory.OffsetImm) return true;
1115 int64_t Val = Memory.OffsetImm->getValue();
1116 return Val >= 0 && Val <= 1020 && (Val % 4) == 0;
1118 bool isMemImm8s4Offset() const {
1119 // If we have an immediate that's not a constant, treat it as a label
1120 // reference needing a fixup. If it is a constant, it's something else
1121 // and we reject it.
1122 if (isImm() && !isa<MCConstantExpr>(getImm()))
1124 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1126 // Immediate offset a multiple of 4 in range [-1020, 1020].
1127 if (!Memory.OffsetImm) return true;
1128 int64_t Val = Memory.OffsetImm->getValue();
1129 // Special case, #-0 is INT32_MIN.
1130 return (Val >= -1020 && Val <= 1020 && (Val & 3) == 0) || Val == INT32_MIN;
1132 bool isMemImm0_1020s4Offset() const {
1133 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1135 // Immediate offset a multiple of 4 in range [0, 1020].
1136 if (!Memory.OffsetImm) return true;
1137 int64_t Val = Memory.OffsetImm->getValue();
1138 return Val >= 0 && Val <= 1020 && (Val & 3) == 0;
1140 bool isMemImm8Offset() const {
1141 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1143 // Base reg of PC isn't allowed for these encodings.
1144 if (Memory.BaseRegNum == ARM::PC) return false;
1145 // Immediate offset in range [-255, 255].
1146 if (!Memory.OffsetImm) return true;
1147 int64_t Val = Memory.OffsetImm->getValue();
1148 return (Val == INT32_MIN) || (Val > -256 && Val < 256);
1150 bool isMemPosImm8Offset() const {
1151 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1153 // Immediate offset in range [0, 255].
1154 if (!Memory.OffsetImm) return true;
1155 int64_t Val = Memory.OffsetImm->getValue();
1156 return Val >= 0 && Val < 256;
1158 bool isMemNegImm8Offset() const {
1159 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1161 // Base reg of PC isn't allowed for these encodings.
1162 if (Memory.BaseRegNum == ARM::PC) return false;
1163 // Immediate offset in range [-255, -1].
1164 if (!Memory.OffsetImm) return false;
1165 int64_t Val = Memory.OffsetImm->getValue();
1166 return (Val == INT32_MIN) || (Val > -256 && Val < 0);
1168 bool isMemUImm12Offset() const {
1169 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1171 // Immediate offset in range [0, 4095].
1172 if (!Memory.OffsetImm) return true;
1173 int64_t Val = Memory.OffsetImm->getValue();
1174 return (Val >= 0 && Val < 4096);
1176 bool isMemImm12Offset() const {
1177 // If we have an immediate that's not a constant, treat it as a label
1178 // reference needing a fixup. If it is a constant, it's something else
1179 // and we reject it.
1180 if (isImm() && !isa<MCConstantExpr>(getImm()))
1183 if (!isMem() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1185 // Immediate offset in range [-4095, 4095].
1186 if (!Memory.OffsetImm) return true;
1187 int64_t Val = Memory.OffsetImm->getValue();
1188 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
1190 bool isPostIdxImm8() const {
1191 if (!isImm()) return false;
1192 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1193 if (!CE) return false;
1194 int64_t Val = CE->getValue();
1195 return (Val > -256 && Val < 256) || (Val == INT32_MIN);
1197 bool isPostIdxImm8s4() const {
1198 if (!isImm()) return false;
1199 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1200 if (!CE) return false;
1201 int64_t Val = CE->getValue();
1202 return ((Val & 3) == 0 && Val >= -1020 && Val <= 1020) ||
1206 bool isMSRMask() const { return Kind == k_MSRMask; }
1207 bool isProcIFlags() const { return Kind == k_ProcIFlags; }
1210 bool isSingleSpacedVectorList() const {
1211 return Kind == k_VectorList && !VectorList.isDoubleSpaced;
1213 bool isDoubleSpacedVectorList() const {
1214 return Kind == k_VectorList && VectorList.isDoubleSpaced;
1216 bool isVecListOneD() const {
1217 if (!isSingleSpacedVectorList()) return false;
1218 return VectorList.Count == 1;
1221 bool isVecListDPair() const {
1222 if (!isSingleSpacedVectorList()) return false;
1223 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1224 .contains(VectorList.RegNum));
1227 bool isVecListThreeD() const {
1228 if (!isSingleSpacedVectorList()) return false;
1229 return VectorList.Count == 3;
1232 bool isVecListFourD() const {
1233 if (!isSingleSpacedVectorList()) return false;
1234 return VectorList.Count == 4;
1237 bool isVecListDPairSpaced() const {
1238 if (isSingleSpacedVectorList()) return false;
1239 return (ARMMCRegisterClasses[ARM::DPairSpcRegClassID]
1240 .contains(VectorList.RegNum));
1243 bool isVecListThreeQ() const {
1244 if (!isDoubleSpacedVectorList()) return false;
1245 return VectorList.Count == 3;
1248 bool isVecListFourQ() const {
1249 if (!isDoubleSpacedVectorList()) return false;
1250 return VectorList.Count == 4;
1253 bool isSingleSpacedVectorAllLanes() const {
1254 return Kind == k_VectorListAllLanes && !VectorList.isDoubleSpaced;
1256 bool isDoubleSpacedVectorAllLanes() const {
1257 return Kind == k_VectorListAllLanes && VectorList.isDoubleSpaced;
1259 bool isVecListOneDAllLanes() const {
1260 if (!isSingleSpacedVectorAllLanes()) return false;
1261 return VectorList.Count == 1;
1264 bool isVecListDPairAllLanes() const {
1265 if (!isSingleSpacedVectorAllLanes()) return false;
1266 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1267 .contains(VectorList.RegNum));
1270 bool isVecListDPairSpacedAllLanes() const {
1271 if (!isDoubleSpacedVectorAllLanes()) return false;
1272 return VectorList.Count == 2;
1275 bool isVecListThreeDAllLanes() const {
1276 if (!isSingleSpacedVectorAllLanes()) return false;
1277 return VectorList.Count == 3;
1280 bool isVecListThreeQAllLanes() const {
1281 if (!isDoubleSpacedVectorAllLanes()) return false;
1282 return VectorList.Count == 3;
1285 bool isVecListFourDAllLanes() const {
1286 if (!isSingleSpacedVectorAllLanes()) return false;
1287 return VectorList.Count == 4;
1290 bool isVecListFourQAllLanes() const {
1291 if (!isDoubleSpacedVectorAllLanes()) return false;
1292 return VectorList.Count == 4;
1295 bool isSingleSpacedVectorIndexed() const {
1296 return Kind == k_VectorListIndexed && !VectorList.isDoubleSpaced;
1298 bool isDoubleSpacedVectorIndexed() const {
1299 return Kind == k_VectorListIndexed && VectorList.isDoubleSpaced;
1301 bool isVecListOneDByteIndexed() const {
1302 if (!isSingleSpacedVectorIndexed()) return false;
1303 return VectorList.Count == 1 && VectorList.LaneIndex <= 7;
1306 bool isVecListOneDHWordIndexed() const {
1307 if (!isSingleSpacedVectorIndexed()) return false;
1308 return VectorList.Count == 1 && VectorList.LaneIndex <= 3;
1311 bool isVecListOneDWordIndexed() const {
1312 if (!isSingleSpacedVectorIndexed()) return false;
1313 return VectorList.Count == 1 && VectorList.LaneIndex <= 1;
1316 bool isVecListTwoDByteIndexed() const {
1317 if (!isSingleSpacedVectorIndexed()) return false;
1318 return VectorList.Count == 2 && VectorList.LaneIndex <= 7;
1321 bool isVecListTwoDHWordIndexed() const {
1322 if (!isSingleSpacedVectorIndexed()) return false;
1323 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1326 bool isVecListTwoQWordIndexed() const {
1327 if (!isDoubleSpacedVectorIndexed()) return false;
1328 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1331 bool isVecListTwoQHWordIndexed() const {
1332 if (!isDoubleSpacedVectorIndexed()) return false;
1333 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1336 bool isVecListTwoDWordIndexed() const {
1337 if (!isSingleSpacedVectorIndexed()) return false;
1338 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1341 bool isVecListThreeDByteIndexed() const {
1342 if (!isSingleSpacedVectorIndexed()) return false;
1343 return VectorList.Count == 3 && VectorList.LaneIndex <= 7;
1346 bool isVecListThreeDHWordIndexed() const {
1347 if (!isSingleSpacedVectorIndexed()) return false;
1348 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1351 bool isVecListThreeQWordIndexed() const {
1352 if (!isDoubleSpacedVectorIndexed()) return false;
1353 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1356 bool isVecListThreeQHWordIndexed() const {
1357 if (!isDoubleSpacedVectorIndexed()) return false;
1358 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1361 bool isVecListThreeDWordIndexed() const {
1362 if (!isSingleSpacedVectorIndexed()) return false;
1363 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1366 bool isVecListFourDByteIndexed() const {
1367 if (!isSingleSpacedVectorIndexed()) return false;
1368 return VectorList.Count == 4 && VectorList.LaneIndex <= 7;
1371 bool isVecListFourDHWordIndexed() const {
1372 if (!isSingleSpacedVectorIndexed()) return false;
1373 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1376 bool isVecListFourQWordIndexed() const {
1377 if (!isDoubleSpacedVectorIndexed()) return false;
1378 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1381 bool isVecListFourQHWordIndexed() const {
1382 if (!isDoubleSpacedVectorIndexed()) return false;
1383 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1386 bool isVecListFourDWordIndexed() const {
1387 if (!isSingleSpacedVectorIndexed()) return false;
1388 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1391 bool isVectorIndex8() const {
1392 if (Kind != k_VectorIndex) return false;
1393 return VectorIndex.Val < 8;
1395 bool isVectorIndex16() const {
1396 if (Kind != k_VectorIndex) return false;
1397 return VectorIndex.Val < 4;
1399 bool isVectorIndex32() const {
1400 if (Kind != k_VectorIndex) return false;
1401 return VectorIndex.Val < 2;
1404 bool isNEONi8splat() const {
1405 if (!isImm()) return false;
1406 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1407 // Must be a constant.
1408 if (!CE) return false;
1409 int64_t Value = CE->getValue();
1410 // i8 value splatted across 8 bytes. The immediate is just the 8 byte
1412 return Value >= 0 && Value < 256;
1415 bool isNEONi16splat() const {
1416 if (!isImm()) return false;
1417 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1418 // Must be a constant.
1419 if (!CE) return false;
1420 int64_t Value = CE->getValue();
1421 // i16 value in the range [0,255] or [0x0100, 0xff00]
1422 return (Value >= 0 && Value < 256) || (Value >= 0x0100 && Value <= 0xff00);
1425 bool isNEONi32splat() const {
1426 if (!isImm()) return false;
1427 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1428 // Must be a constant.
1429 if (!CE) return false;
1430 int64_t Value = CE->getValue();
1431 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X.
1432 return (Value >= 0 && Value < 256) ||
1433 (Value >= 0x0100 && Value <= 0xff00) ||
1434 (Value >= 0x010000 && Value <= 0xff0000) ||
1435 (Value >= 0x01000000 && Value <= 0xff000000);
1438 bool isNEONi32vmov() const {
1439 if (!isImm()) return false;
1440 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1441 // Must be a constant.
1442 if (!CE) return false;
1443 int64_t Value = CE->getValue();
1444 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1445 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1446 return (Value >= 0 && Value < 256) ||
1447 (Value >= 0x0100 && Value <= 0xff00) ||
1448 (Value >= 0x010000 && Value <= 0xff0000) ||
1449 (Value >= 0x01000000 && Value <= 0xff000000) ||
1450 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1451 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1453 bool isNEONi32vmovNeg() const {
1454 if (!isImm()) return false;
1455 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1456 // Must be a constant.
1457 if (!CE) return false;
1458 int64_t Value = ~CE->getValue();
1459 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1460 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1461 return (Value >= 0 && Value < 256) ||
1462 (Value >= 0x0100 && Value <= 0xff00) ||
1463 (Value >= 0x010000 && Value <= 0xff0000) ||
1464 (Value >= 0x01000000 && Value <= 0xff000000) ||
1465 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1466 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1469 bool isNEONi64splat() const {
1470 if (!isImm()) return false;
1471 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1472 // Must be a constant.
1473 if (!CE) return false;
1474 uint64_t Value = CE->getValue();
1475 // i64 value with each byte being either 0 or 0xff.
1476 for (unsigned i = 0; i < 8; ++i)
1477 if ((Value & 0xff) != 0 && (Value & 0xff) != 0xff) return false;
1481 void addExpr(MCInst &Inst, const MCExpr *Expr) const {
1482 // Add as immediates when possible. Null MCExpr = 0.
1484 Inst.addOperand(MCOperand::CreateImm(0));
1485 else if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr))
1486 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1488 Inst.addOperand(MCOperand::CreateExpr(Expr));
1491 void addCondCodeOperands(MCInst &Inst, unsigned N) const {
1492 assert(N == 2 && "Invalid number of operands!");
1493 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1494 unsigned RegNum = getCondCode() == ARMCC::AL ? 0: ARM::CPSR;
1495 Inst.addOperand(MCOperand::CreateReg(RegNum));
1498 void addCoprocNumOperands(MCInst &Inst, unsigned N) const {
1499 assert(N == 1 && "Invalid number of operands!");
1500 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1503 void addCoprocRegOperands(MCInst &Inst, unsigned N) const {
1504 assert(N == 1 && "Invalid number of operands!");
1505 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1508 void addCoprocOptionOperands(MCInst &Inst, unsigned N) const {
1509 assert(N == 1 && "Invalid number of operands!");
1510 Inst.addOperand(MCOperand::CreateImm(CoprocOption.Val));
1513 void addITMaskOperands(MCInst &Inst, unsigned N) const {
1514 assert(N == 1 && "Invalid number of operands!");
1515 Inst.addOperand(MCOperand::CreateImm(ITMask.Mask));
1518 void addITCondCodeOperands(MCInst &Inst, unsigned N) const {
1519 assert(N == 1 && "Invalid number of operands!");
1520 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1523 void addCCOutOperands(MCInst &Inst, unsigned N) const {
1524 assert(N == 1 && "Invalid number of operands!");
1525 Inst.addOperand(MCOperand::CreateReg(getReg()));
1528 void addRegOperands(MCInst &Inst, unsigned N) const {
1529 assert(N == 1 && "Invalid number of operands!");
1530 Inst.addOperand(MCOperand::CreateReg(getReg()));
1533 void addRegShiftedRegOperands(MCInst &Inst, unsigned N) const {
1534 assert(N == 3 && "Invalid number of operands!");
1535 assert(isRegShiftedReg() &&
1536 "addRegShiftedRegOperands() on non RegShiftedReg!");
1537 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.SrcReg));
1538 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.ShiftReg));
1539 Inst.addOperand(MCOperand::CreateImm(
1540 ARM_AM::getSORegOpc(RegShiftedReg.ShiftTy, RegShiftedReg.ShiftImm)));
1543 void addRegShiftedImmOperands(MCInst &Inst, unsigned N) const {
1544 assert(N == 2 && "Invalid number of operands!");
1545 assert(isRegShiftedImm() &&
1546 "addRegShiftedImmOperands() on non RegShiftedImm!");
1547 Inst.addOperand(MCOperand::CreateReg(RegShiftedImm.SrcReg));
1548 // Shift of #32 is encoded as 0 where permitted
1549 unsigned Imm = (RegShiftedImm.ShiftImm == 32 ? 0 : RegShiftedImm.ShiftImm);
1550 Inst.addOperand(MCOperand::CreateImm(
1551 ARM_AM::getSORegOpc(RegShiftedImm.ShiftTy, Imm)));
1554 void addShifterImmOperands(MCInst &Inst, unsigned N) const {
1555 assert(N == 1 && "Invalid number of operands!");
1556 Inst.addOperand(MCOperand::CreateImm((ShifterImm.isASR << 5) |
1560 void addRegListOperands(MCInst &Inst, unsigned N) const {
1561 assert(N == 1 && "Invalid number of operands!");
1562 const SmallVectorImpl<unsigned> &RegList = getRegList();
1563 for (SmallVectorImpl<unsigned>::const_iterator
1564 I = RegList.begin(), E = RegList.end(); I != E; ++I)
1565 Inst.addOperand(MCOperand::CreateReg(*I));
1568 void addDPRRegListOperands(MCInst &Inst, unsigned N) const {
1569 addRegListOperands(Inst, N);
1572 void addSPRRegListOperands(MCInst &Inst, unsigned N) const {
1573 addRegListOperands(Inst, N);
1576 void addRotImmOperands(MCInst &Inst, unsigned N) const {
1577 assert(N == 1 && "Invalid number of operands!");
1578 // Encoded as val>>3. The printer handles display as 8, 16, 24.
1579 Inst.addOperand(MCOperand::CreateImm(RotImm.Imm >> 3));
1582 void addBitfieldOperands(MCInst &Inst, unsigned N) const {
1583 assert(N == 1 && "Invalid number of operands!");
1584 // Munge the lsb/width into a bitfield mask.
1585 unsigned lsb = Bitfield.LSB;
1586 unsigned width = Bitfield.Width;
1587 // Make a 32-bit mask w/ the referenced bits clear and all other bits set.
1588 uint32_t Mask = ~(((uint32_t)0xffffffff >> lsb) << (32 - width) >>
1589 (32 - (lsb + width)));
1590 Inst.addOperand(MCOperand::CreateImm(Mask));
1593 void addImmOperands(MCInst &Inst, unsigned N) const {
1594 assert(N == 1 && "Invalid number of operands!");
1595 addExpr(Inst, getImm());
1598 void addFBits16Operands(MCInst &Inst, unsigned N) const {
1599 assert(N == 1 && "Invalid number of operands!");
1600 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1601 Inst.addOperand(MCOperand::CreateImm(16 - CE->getValue()));
1604 void addFBits32Operands(MCInst &Inst, unsigned N) const {
1605 assert(N == 1 && "Invalid number of operands!");
1606 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1607 Inst.addOperand(MCOperand::CreateImm(32 - CE->getValue()));
1610 void addFPImmOperands(MCInst &Inst, unsigned N) const {
1611 assert(N == 1 && "Invalid number of operands!");
1612 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1613 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
1614 Inst.addOperand(MCOperand::CreateImm(Val));
1617 void addImm8s4Operands(MCInst &Inst, unsigned N) const {
1618 assert(N == 1 && "Invalid number of operands!");
1619 // FIXME: We really want to scale the value here, but the LDRD/STRD
1620 // instruction don't encode operands that way yet.
1621 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1622 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1625 void addImm0_1020s4Operands(MCInst &Inst, unsigned N) const {
1626 assert(N == 1 && "Invalid number of operands!");
1627 // The immediate is scaled by four in the encoding and is stored
1628 // in the MCInst as such. Lop off the low two bits here.
1629 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1630 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1633 void addImm0_508s4NegOperands(MCInst &Inst, unsigned N) const {
1634 assert(N == 1 && "Invalid number of operands!");
1635 // The immediate is scaled by four in the encoding and is stored
1636 // in the MCInst as such. Lop off the low two bits here.
1637 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1638 Inst.addOperand(MCOperand::CreateImm(-(CE->getValue() / 4)));
1641 void addImm0_508s4Operands(MCInst &Inst, unsigned N) const {
1642 assert(N == 1 && "Invalid number of operands!");
1643 // The immediate is scaled by four in the encoding and is stored
1644 // in the MCInst as such. Lop off the low two bits here.
1645 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1646 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1649 void addImm1_16Operands(MCInst &Inst, unsigned N) const {
1650 assert(N == 1 && "Invalid number of operands!");
1651 // The constant encodes as the immediate-1, and we store in the instruction
1652 // the bits as encoded, so subtract off one here.
1653 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1654 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1657 void addImm1_32Operands(MCInst &Inst, unsigned N) const {
1658 assert(N == 1 && "Invalid number of operands!");
1659 // The constant encodes as the immediate-1, and we store in the instruction
1660 // the bits as encoded, so subtract off one here.
1661 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1662 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1665 void addImmThumbSROperands(MCInst &Inst, unsigned N) const {
1666 assert(N == 1 && "Invalid number of operands!");
1667 // The constant encodes as the immediate, except for 32, which encodes as
1669 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1670 unsigned Imm = CE->getValue();
1671 Inst.addOperand(MCOperand::CreateImm((Imm == 32 ? 0 : Imm)));
1674 void addPKHASRImmOperands(MCInst &Inst, unsigned N) const {
1675 assert(N == 1 && "Invalid number of operands!");
1676 // An ASR value of 32 encodes as 0, so that's how we want to add it to
1677 // the instruction as well.
1678 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1679 int Val = CE->getValue();
1680 Inst.addOperand(MCOperand::CreateImm(Val == 32 ? 0 : Val));
1683 void addT2SOImmNotOperands(MCInst &Inst, unsigned N) const {
1684 assert(N == 1 && "Invalid number of operands!");
1685 // The operand is actually a t2_so_imm, but we have its bitwise
1686 // negation in the assembly source, so twiddle it here.
1687 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1688 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1691 void addT2SOImmNegOperands(MCInst &Inst, unsigned N) const {
1692 assert(N == 1 && "Invalid number of operands!");
1693 // The operand is actually a t2_so_imm, but we have its
1694 // negation in the assembly source, so twiddle it here.
1695 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1696 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1699 void addImm0_4095NegOperands(MCInst &Inst, unsigned N) const {
1700 assert(N == 1 && "Invalid number of operands!");
1701 // The operand is actually an imm0_4095, but we have its
1702 // negation in the assembly source, so twiddle it here.
1703 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1704 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1707 void addARMSOImmNotOperands(MCInst &Inst, unsigned N) const {
1708 assert(N == 1 && "Invalid number of operands!");
1709 // The operand is actually a so_imm, but we have its bitwise
1710 // negation in the assembly source, so twiddle it here.
1711 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1712 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1715 void addARMSOImmNegOperands(MCInst &Inst, unsigned N) const {
1716 assert(N == 1 && "Invalid number of operands!");
1717 // The operand is actually a so_imm, but we have its
1718 // negation in the assembly source, so twiddle it here.
1719 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1720 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1723 void addMemBarrierOptOperands(MCInst &Inst, unsigned N) const {
1724 assert(N == 1 && "Invalid number of operands!");
1725 Inst.addOperand(MCOperand::CreateImm(unsigned(getMemBarrierOpt())));
1728 void addInstSyncBarrierOptOperands(MCInst &Inst, unsigned N) const {
1729 assert(N == 1 && "Invalid number of operands!");
1730 Inst.addOperand(MCOperand::CreateImm(unsigned(getInstSyncBarrierOpt())));
1733 void addMemNoOffsetOperands(MCInst &Inst, unsigned N) const {
1734 assert(N == 1 && "Invalid number of operands!");
1735 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1738 void addMemPCRelImm12Operands(MCInst &Inst, unsigned N) const {
1739 assert(N == 1 && "Invalid number of operands!");
1740 int32_t Imm = Memory.OffsetImm->getValue();
1741 // FIXME: Handle #-0
1742 if (Imm == INT32_MIN) Imm = 0;
1743 Inst.addOperand(MCOperand::CreateImm(Imm));
1746 void addAdrLabelOperands(MCInst &Inst, unsigned N) const {
1747 assert(N == 1 && "Invalid number of operands!");
1748 assert(isImm() && "Not an immediate!");
1750 // If we have an immediate that's not a constant, treat it as a label
1751 // reference needing a fixup.
1752 if (!isa<MCConstantExpr>(getImm())) {
1753 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1757 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1758 int Val = CE->getValue();
1759 Inst.addOperand(MCOperand::CreateImm(Val));
1762 void addAlignedMemoryOperands(MCInst &Inst, unsigned N) const {
1763 assert(N == 2 && "Invalid number of operands!");
1764 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1765 Inst.addOperand(MCOperand::CreateImm(Memory.Alignment));
1768 void addAddrMode2Operands(MCInst &Inst, unsigned N) const {
1769 assert(N == 3 && "Invalid number of operands!");
1770 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1771 if (!Memory.OffsetRegNum) {
1772 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1773 // Special case for #-0
1774 if (Val == INT32_MIN) Val = 0;
1775 if (Val < 0) Val = -Val;
1776 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
1778 // For register offset, we encode the shift type and negation flag
1780 Val = ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
1781 Memory.ShiftImm, Memory.ShiftType);
1783 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1784 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1785 Inst.addOperand(MCOperand::CreateImm(Val));
1788 void addAM2OffsetImmOperands(MCInst &Inst, unsigned N) const {
1789 assert(N == 2 && "Invalid number of operands!");
1790 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1791 assert(CE && "non-constant AM2OffsetImm operand!");
1792 int32_t Val = CE->getValue();
1793 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1794 // Special case for #-0
1795 if (Val == INT32_MIN) Val = 0;
1796 if (Val < 0) Val = -Val;
1797 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
1798 Inst.addOperand(MCOperand::CreateReg(0));
1799 Inst.addOperand(MCOperand::CreateImm(Val));
1802 void addAddrMode3Operands(MCInst &Inst, unsigned N) const {
1803 assert(N == 3 && "Invalid number of operands!");
1804 // If we have an immediate that's not a constant, treat it as a label
1805 // reference needing a fixup. If it is a constant, it's something else
1806 // and we reject it.
1808 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1809 Inst.addOperand(MCOperand::CreateReg(0));
1810 Inst.addOperand(MCOperand::CreateImm(0));
1814 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1815 if (!Memory.OffsetRegNum) {
1816 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1817 // Special case for #-0
1818 if (Val == INT32_MIN) Val = 0;
1819 if (Val < 0) Val = -Val;
1820 Val = ARM_AM::getAM3Opc(AddSub, Val);
1822 // For register offset, we encode the shift type and negation flag
1824 Val = ARM_AM::getAM3Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add, 0);
1826 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1827 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1828 Inst.addOperand(MCOperand::CreateImm(Val));
1831 void addAM3OffsetOperands(MCInst &Inst, unsigned N) const {
1832 assert(N == 2 && "Invalid number of operands!");
1833 if (Kind == k_PostIndexRegister) {
1835 ARM_AM::getAM3Opc(PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub, 0);
1836 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
1837 Inst.addOperand(MCOperand::CreateImm(Val));
1842 const MCConstantExpr *CE = static_cast<const MCConstantExpr*>(getImm());
1843 int32_t Val = CE->getValue();
1844 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1845 // Special case for #-0
1846 if (Val == INT32_MIN) Val = 0;
1847 if (Val < 0) Val = -Val;
1848 Val = ARM_AM::getAM3Opc(AddSub, Val);
1849 Inst.addOperand(MCOperand::CreateReg(0));
1850 Inst.addOperand(MCOperand::CreateImm(Val));
1853 void addAddrMode5Operands(MCInst &Inst, unsigned N) const {
1854 assert(N == 2 && "Invalid number of operands!");
1855 // If we have an immediate that's not a constant, treat it as a label
1856 // reference needing a fixup. If it is a constant, it's something else
1857 // and we reject it.
1859 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1860 Inst.addOperand(MCOperand::CreateImm(0));
1864 // The lower two bits are always zero and as such are not encoded.
1865 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
1866 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1867 // Special case for #-0
1868 if (Val == INT32_MIN) Val = 0;
1869 if (Val < 0) Val = -Val;
1870 Val = ARM_AM::getAM5Opc(AddSub, Val);
1871 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1872 Inst.addOperand(MCOperand::CreateImm(Val));
1875 void addMemImm8s4OffsetOperands(MCInst &Inst, unsigned N) const {
1876 assert(N == 2 && "Invalid number of operands!");
1877 // If we have an immediate that's not a constant, treat it as a label
1878 // reference needing a fixup. If it is a constant, it's something else
1879 // and we reject it.
1881 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1882 Inst.addOperand(MCOperand::CreateImm(0));
1886 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1887 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1888 Inst.addOperand(MCOperand::CreateImm(Val));
1891 void addMemImm0_1020s4OffsetOperands(MCInst &Inst, unsigned N) const {
1892 assert(N == 2 && "Invalid number of operands!");
1893 // The lower two bits are always zero and as such are not encoded.
1894 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
1895 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1896 Inst.addOperand(MCOperand::CreateImm(Val));
1899 void addMemImm8OffsetOperands(MCInst &Inst, unsigned N) const {
1900 assert(N == 2 && "Invalid number of operands!");
1901 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1902 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1903 Inst.addOperand(MCOperand::CreateImm(Val));
1906 void addMemPosImm8OffsetOperands(MCInst &Inst, unsigned N) const {
1907 addMemImm8OffsetOperands(Inst, N);
1910 void addMemNegImm8OffsetOperands(MCInst &Inst, unsigned N) const {
1911 addMemImm8OffsetOperands(Inst, N);
1914 void addMemUImm12OffsetOperands(MCInst &Inst, unsigned N) const {
1915 assert(N == 2 && "Invalid number of operands!");
1916 // If this is an immediate, it's a label reference.
1918 addExpr(Inst, getImm());
1919 Inst.addOperand(MCOperand::CreateImm(0));
1923 // Otherwise, it's a normal memory reg+offset.
1924 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1925 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1926 Inst.addOperand(MCOperand::CreateImm(Val));
1929 void addMemImm12OffsetOperands(MCInst &Inst, unsigned N) const {
1930 assert(N == 2 && "Invalid number of operands!");
1931 // If this is an immediate, it's a label reference.
1933 addExpr(Inst, getImm());
1934 Inst.addOperand(MCOperand::CreateImm(0));
1938 // Otherwise, it's a normal memory reg+offset.
1939 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1940 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1941 Inst.addOperand(MCOperand::CreateImm(Val));
1944 void addMemTBBOperands(MCInst &Inst, unsigned N) const {
1945 assert(N == 2 && "Invalid number of operands!");
1946 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1947 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1950 void addMemTBHOperands(MCInst &Inst, unsigned N) const {
1951 assert(N == 2 && "Invalid number of operands!");
1952 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1953 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1956 void addMemRegOffsetOperands(MCInst &Inst, unsigned N) const {
1957 assert(N == 3 && "Invalid number of operands!");
1959 ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
1960 Memory.ShiftImm, Memory.ShiftType);
1961 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1962 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1963 Inst.addOperand(MCOperand::CreateImm(Val));
1966 void addT2MemRegOffsetOperands(MCInst &Inst, unsigned N) const {
1967 assert(N == 3 && "Invalid number of operands!");
1968 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1969 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1970 Inst.addOperand(MCOperand::CreateImm(Memory.ShiftImm));
1973 void addMemThumbRROperands(MCInst &Inst, unsigned N) const {
1974 assert(N == 2 && "Invalid number of operands!");
1975 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1976 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1979 void addMemThumbRIs4Operands(MCInst &Inst, unsigned N) const {
1980 assert(N == 2 && "Invalid number of operands!");
1981 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
1982 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1983 Inst.addOperand(MCOperand::CreateImm(Val));
1986 void addMemThumbRIs2Operands(MCInst &Inst, unsigned N) const {
1987 assert(N == 2 && "Invalid number of operands!");
1988 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 2) : 0;
1989 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1990 Inst.addOperand(MCOperand::CreateImm(Val));
1993 void addMemThumbRIs1Operands(MCInst &Inst, unsigned N) const {
1994 assert(N == 2 && "Invalid number of operands!");
1995 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue()) : 0;
1996 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1997 Inst.addOperand(MCOperand::CreateImm(Val));
2000 void addMemThumbSPIOperands(MCInst &Inst, unsigned N) const {
2001 assert(N == 2 && "Invalid number of operands!");
2002 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
2003 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
2004 Inst.addOperand(MCOperand::CreateImm(Val));
2007 void addPostIdxImm8Operands(MCInst &Inst, unsigned N) const {
2008 assert(N == 1 && "Invalid number of operands!");
2009 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2010 assert(CE && "non-constant post-idx-imm8 operand!");
2011 int Imm = CE->getValue();
2012 bool isAdd = Imm >= 0;
2013 if (Imm == INT32_MIN) Imm = 0;
2014 Imm = (Imm < 0 ? -Imm : Imm) | (int)isAdd << 8;
2015 Inst.addOperand(MCOperand::CreateImm(Imm));
2018 void addPostIdxImm8s4Operands(MCInst &Inst, unsigned N) const {
2019 assert(N == 1 && "Invalid number of operands!");
2020 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2021 assert(CE && "non-constant post-idx-imm8s4 operand!");
2022 int Imm = CE->getValue();
2023 bool isAdd = Imm >= 0;
2024 if (Imm == INT32_MIN) Imm = 0;
2025 // Immediate is scaled by 4.
2026 Imm = ((Imm < 0 ? -Imm : Imm) / 4) | (int)isAdd << 8;
2027 Inst.addOperand(MCOperand::CreateImm(Imm));
2030 void addPostIdxRegOperands(MCInst &Inst, unsigned N) const {
2031 assert(N == 2 && "Invalid number of operands!");
2032 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
2033 Inst.addOperand(MCOperand::CreateImm(PostIdxReg.isAdd));
2036 void addPostIdxRegShiftedOperands(MCInst &Inst, unsigned N) const {
2037 assert(N == 2 && "Invalid number of operands!");
2038 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
2039 // The sign, shift type, and shift amount are encoded in a single operand
2040 // using the AM2 encoding helpers.
2041 ARM_AM::AddrOpc opc = PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub;
2042 unsigned Imm = ARM_AM::getAM2Opc(opc, PostIdxReg.ShiftImm,
2043 PostIdxReg.ShiftTy);
2044 Inst.addOperand(MCOperand::CreateImm(Imm));
2047 void addMSRMaskOperands(MCInst &Inst, unsigned N) const {
2048 assert(N == 1 && "Invalid number of operands!");
2049 Inst.addOperand(MCOperand::CreateImm(unsigned(getMSRMask())));
2052 void addProcIFlagsOperands(MCInst &Inst, unsigned N) const {
2053 assert(N == 1 && "Invalid number of operands!");
2054 Inst.addOperand(MCOperand::CreateImm(unsigned(getProcIFlags())));
2057 void addVecListOperands(MCInst &Inst, unsigned N) const {
2058 assert(N == 1 && "Invalid number of operands!");
2059 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
2062 void addVecListIndexedOperands(MCInst &Inst, unsigned N) const {
2063 assert(N == 2 && "Invalid number of operands!");
2064 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
2065 Inst.addOperand(MCOperand::CreateImm(VectorList.LaneIndex));
2068 void addVectorIndex8Operands(MCInst &Inst, unsigned N) const {
2069 assert(N == 1 && "Invalid number of operands!");
2070 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2073 void addVectorIndex16Operands(MCInst &Inst, unsigned N) const {
2074 assert(N == 1 && "Invalid number of operands!");
2075 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2078 void addVectorIndex32Operands(MCInst &Inst, unsigned N) const {
2079 assert(N == 1 && "Invalid number of operands!");
2080 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
2083 void addNEONi8splatOperands(MCInst &Inst, unsigned N) const {
2084 assert(N == 1 && "Invalid number of operands!");
2085 // The immediate encodes the type of constant as well as the value.
2086 // Mask in that this is an i8 splat.
2087 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2088 Inst.addOperand(MCOperand::CreateImm(CE->getValue() | 0xe00));
2091 void addNEONi16splatOperands(MCInst &Inst, unsigned N) const {
2092 assert(N == 1 && "Invalid number of operands!");
2093 // The immediate encodes the type of constant as well as the value.
2094 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2095 unsigned Value = CE->getValue();
2097 Value = (Value >> 8) | 0xa00;
2100 Inst.addOperand(MCOperand::CreateImm(Value));
2103 void addNEONi32splatOperands(MCInst &Inst, unsigned N) const {
2104 assert(N == 1 && "Invalid number of operands!");
2105 // The immediate encodes the type of constant as well as the value.
2106 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2107 unsigned Value = CE->getValue();
2108 if (Value >= 256 && Value <= 0xff00)
2109 Value = (Value >> 8) | 0x200;
2110 else if (Value > 0xffff && Value <= 0xff0000)
2111 Value = (Value >> 16) | 0x400;
2112 else if (Value > 0xffffff)
2113 Value = (Value >> 24) | 0x600;
2114 Inst.addOperand(MCOperand::CreateImm(Value));
2117 void addNEONi32vmovOperands(MCInst &Inst, unsigned N) const {
2118 assert(N == 1 && "Invalid number of operands!");
2119 // The immediate encodes the type of constant as well as the value.
2120 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2121 unsigned Value = CE->getValue();
2122 if (Value >= 256 && Value <= 0xffff)
2123 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2124 else if (Value > 0xffff && Value <= 0xffffff)
2125 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2126 else if (Value > 0xffffff)
2127 Value = (Value >> 24) | 0x600;
2128 Inst.addOperand(MCOperand::CreateImm(Value));
2131 void addNEONi32vmovNegOperands(MCInst &Inst, unsigned N) const {
2132 assert(N == 1 && "Invalid number of operands!");
2133 // The immediate encodes the type of constant as well as the value.
2134 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2135 unsigned Value = ~CE->getValue();
2136 if (Value >= 256 && Value <= 0xffff)
2137 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2138 else if (Value > 0xffff && Value <= 0xffffff)
2139 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2140 else if (Value > 0xffffff)
2141 Value = (Value >> 24) | 0x600;
2142 Inst.addOperand(MCOperand::CreateImm(Value));
2145 void addNEONi64splatOperands(MCInst &Inst, unsigned N) const {
2146 assert(N == 1 && "Invalid number of operands!");
2147 // The immediate encodes the type of constant as well as the value.
2148 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2149 uint64_t Value = CE->getValue();
2151 for (unsigned i = 0; i < 8; ++i, Value >>= 8) {
2152 Imm |= (Value & 1) << i;
2154 Inst.addOperand(MCOperand::CreateImm(Imm | 0x1e00));
2157 virtual void print(raw_ostream &OS) const;
2159 static ARMOperand *CreateITMask(unsigned Mask, SMLoc S) {
2160 ARMOperand *Op = new ARMOperand(k_ITCondMask);
2161 Op->ITMask.Mask = Mask;
2167 static ARMOperand *CreateCondCode(ARMCC::CondCodes CC, SMLoc S) {
2168 ARMOperand *Op = new ARMOperand(k_CondCode);
2175 static ARMOperand *CreateCoprocNum(unsigned CopVal, SMLoc S) {
2176 ARMOperand *Op = new ARMOperand(k_CoprocNum);
2177 Op->Cop.Val = CopVal;
2183 static ARMOperand *CreateCoprocReg(unsigned CopVal, SMLoc S) {
2184 ARMOperand *Op = new ARMOperand(k_CoprocReg);
2185 Op->Cop.Val = CopVal;
2191 static ARMOperand *CreateCoprocOption(unsigned Val, SMLoc S, SMLoc E) {
2192 ARMOperand *Op = new ARMOperand(k_CoprocOption);
2199 static ARMOperand *CreateCCOut(unsigned RegNum, SMLoc S) {
2200 ARMOperand *Op = new ARMOperand(k_CCOut);
2201 Op->Reg.RegNum = RegNum;
2207 static ARMOperand *CreateToken(StringRef Str, SMLoc S) {
2208 ARMOperand *Op = new ARMOperand(k_Token);
2209 Op->Tok.Data = Str.data();
2210 Op->Tok.Length = Str.size();
2216 static ARMOperand *CreateReg(unsigned RegNum, SMLoc S, SMLoc E) {
2217 ARMOperand *Op = new ARMOperand(k_Register);
2218 Op->Reg.RegNum = RegNum;
2224 static ARMOperand *CreateShiftedRegister(ARM_AM::ShiftOpc ShTy,
2229 ARMOperand *Op = new ARMOperand(k_ShiftedRegister);
2230 Op->RegShiftedReg.ShiftTy = ShTy;
2231 Op->RegShiftedReg.SrcReg = SrcReg;
2232 Op->RegShiftedReg.ShiftReg = ShiftReg;
2233 Op->RegShiftedReg.ShiftImm = ShiftImm;
2239 static ARMOperand *CreateShiftedImmediate(ARM_AM::ShiftOpc ShTy,
2243 ARMOperand *Op = new ARMOperand(k_ShiftedImmediate);
2244 Op->RegShiftedImm.ShiftTy = ShTy;
2245 Op->RegShiftedImm.SrcReg = SrcReg;
2246 Op->RegShiftedImm.ShiftImm = ShiftImm;
2252 static ARMOperand *CreateShifterImm(bool isASR, unsigned Imm,
2254 ARMOperand *Op = new ARMOperand(k_ShifterImmediate);
2255 Op->ShifterImm.isASR = isASR;
2256 Op->ShifterImm.Imm = Imm;
2262 static ARMOperand *CreateRotImm(unsigned Imm, SMLoc S, SMLoc E) {
2263 ARMOperand *Op = new ARMOperand(k_RotateImmediate);
2264 Op->RotImm.Imm = Imm;
2270 static ARMOperand *CreateBitfield(unsigned LSB, unsigned Width,
2272 ARMOperand *Op = new ARMOperand(k_BitfieldDescriptor);
2273 Op->Bitfield.LSB = LSB;
2274 Op->Bitfield.Width = Width;
2281 CreateRegList(const SmallVectorImpl<std::pair<unsigned, SMLoc> > &Regs,
2282 SMLoc StartLoc, SMLoc EndLoc) {
2283 KindTy Kind = k_RegisterList;
2285 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Regs.front().first))
2286 Kind = k_DPRRegisterList;
2287 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].
2288 contains(Regs.front().first))
2289 Kind = k_SPRRegisterList;
2291 ARMOperand *Op = new ARMOperand(Kind);
2292 for (SmallVectorImpl<std::pair<unsigned, SMLoc> >::const_iterator
2293 I = Regs.begin(), E = Regs.end(); I != E; ++I)
2294 Op->Registers.push_back(I->first);
2295 array_pod_sort(Op->Registers.begin(), Op->Registers.end());
2296 Op->StartLoc = StartLoc;
2297 Op->EndLoc = EndLoc;
2301 static ARMOperand *CreateVectorList(unsigned RegNum, unsigned Count,
2302 bool isDoubleSpaced, SMLoc S, SMLoc E) {
2303 ARMOperand *Op = new ARMOperand(k_VectorList);
2304 Op->VectorList.RegNum = RegNum;
2305 Op->VectorList.Count = Count;
2306 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2312 static ARMOperand *CreateVectorListAllLanes(unsigned RegNum, unsigned Count,
2313 bool isDoubleSpaced,
2315 ARMOperand *Op = new ARMOperand(k_VectorListAllLanes);
2316 Op->VectorList.RegNum = RegNum;
2317 Op->VectorList.Count = Count;
2318 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2324 static ARMOperand *CreateVectorListIndexed(unsigned RegNum, unsigned Count,
2326 bool isDoubleSpaced,
2328 ARMOperand *Op = new ARMOperand(k_VectorListIndexed);
2329 Op->VectorList.RegNum = RegNum;
2330 Op->VectorList.Count = Count;
2331 Op->VectorList.LaneIndex = Index;
2332 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2338 static ARMOperand *CreateVectorIndex(unsigned Idx, SMLoc S, SMLoc E,
2340 ARMOperand *Op = new ARMOperand(k_VectorIndex);
2341 Op->VectorIndex.Val = Idx;
2347 static ARMOperand *CreateImm(const MCExpr *Val, SMLoc S, SMLoc E) {
2348 ARMOperand *Op = new ARMOperand(k_Immediate);
2355 static ARMOperand *CreateMem(unsigned BaseRegNum,
2356 const MCConstantExpr *OffsetImm,
2357 unsigned OffsetRegNum,
2358 ARM_AM::ShiftOpc ShiftType,
2363 ARMOperand *Op = new ARMOperand(k_Memory);
2364 Op->Memory.BaseRegNum = BaseRegNum;
2365 Op->Memory.OffsetImm = OffsetImm;
2366 Op->Memory.OffsetRegNum = OffsetRegNum;
2367 Op->Memory.ShiftType = ShiftType;
2368 Op->Memory.ShiftImm = ShiftImm;
2369 Op->Memory.Alignment = Alignment;
2370 Op->Memory.isNegative = isNegative;
2376 static ARMOperand *CreatePostIdxReg(unsigned RegNum, bool isAdd,
2377 ARM_AM::ShiftOpc ShiftTy,
2380 ARMOperand *Op = new ARMOperand(k_PostIndexRegister);
2381 Op->PostIdxReg.RegNum = RegNum;
2382 Op->PostIdxReg.isAdd = isAdd;
2383 Op->PostIdxReg.ShiftTy = ShiftTy;
2384 Op->PostIdxReg.ShiftImm = ShiftImm;
2390 static ARMOperand *CreateMemBarrierOpt(ARM_MB::MemBOpt Opt, SMLoc S) {
2391 ARMOperand *Op = new ARMOperand(k_MemBarrierOpt);
2392 Op->MBOpt.Val = Opt;
2398 static ARMOperand *CreateInstSyncBarrierOpt(ARM_ISB::InstSyncBOpt Opt,
2400 ARMOperand *Op = new ARMOperand(k_InstSyncBarrierOpt);
2401 Op->ISBOpt.Val = Opt;
2407 static ARMOperand *CreateProcIFlags(ARM_PROC::IFlags IFlags, SMLoc S) {
2408 ARMOperand *Op = new ARMOperand(k_ProcIFlags);
2409 Op->IFlags.Val = IFlags;
2415 static ARMOperand *CreateMSRMask(unsigned MMask, SMLoc S) {
2416 ARMOperand *Op = new ARMOperand(k_MSRMask);
2417 Op->MMask.Val = MMask;
2424 } // end anonymous namespace.
2426 void ARMOperand::print(raw_ostream &OS) const {
2429 OS << "<ARMCC::" << ARMCondCodeToString(getCondCode()) << ">";
2432 OS << "<ccout " << getReg() << ">";
2434 case k_ITCondMask: {
2435 static const char *const MaskStr[] = {
2436 "()", "(t)", "(e)", "(tt)", "(et)", "(te)", "(ee)", "(ttt)", "(ett)",
2437 "(tet)", "(eet)", "(tte)", "(ete)", "(tee)", "(eee)"
2439 assert((ITMask.Mask & 0xf) == ITMask.Mask);
2440 OS << "<it-mask " << MaskStr[ITMask.Mask] << ">";
2444 OS << "<coprocessor number: " << getCoproc() << ">";
2447 OS << "<coprocessor register: " << getCoproc() << ">";
2449 case k_CoprocOption:
2450 OS << "<coprocessor option: " << CoprocOption.Val << ">";
2453 OS << "<mask: " << getMSRMask() << ">";
2456 getImm()->print(OS);
2458 case k_MemBarrierOpt:
2459 OS << "<ARM_MB::" << MemBOptToString(getMemBarrierOpt()) << ">";
2461 case k_InstSyncBarrierOpt:
2462 OS << "<ARM_ISB::" << InstSyncBOptToString(getInstSyncBarrierOpt()) << ">";
2466 << " base:" << Memory.BaseRegNum;
2469 case k_PostIndexRegister:
2470 OS << "post-idx register " << (PostIdxReg.isAdd ? "" : "-")
2471 << PostIdxReg.RegNum;
2472 if (PostIdxReg.ShiftTy != ARM_AM::no_shift)
2473 OS << ARM_AM::getShiftOpcStr(PostIdxReg.ShiftTy) << " "
2474 << PostIdxReg.ShiftImm;
2477 case k_ProcIFlags: {
2478 OS << "<ARM_PROC::";
2479 unsigned IFlags = getProcIFlags();
2480 for (int i=2; i >= 0; --i)
2481 if (IFlags & (1 << i))
2482 OS << ARM_PROC::IFlagsToString(1 << i);
2487 OS << "<register " << getReg() << ">";
2489 case k_ShifterImmediate:
2490 OS << "<shift " << (ShifterImm.isASR ? "asr" : "lsl")
2491 << " #" << ShifterImm.Imm << ">";
2493 case k_ShiftedRegister:
2494 OS << "<so_reg_reg "
2495 << RegShiftedReg.SrcReg << " "
2496 << ARM_AM::getShiftOpcStr(RegShiftedReg.ShiftTy)
2497 << " " << RegShiftedReg.ShiftReg << ">";
2499 case k_ShiftedImmediate:
2500 OS << "<so_reg_imm "
2501 << RegShiftedImm.SrcReg << " "
2502 << ARM_AM::getShiftOpcStr(RegShiftedImm.ShiftTy)
2503 << " #" << RegShiftedImm.ShiftImm << ">";
2505 case k_RotateImmediate:
2506 OS << "<ror " << " #" << (RotImm.Imm * 8) << ">";
2508 case k_BitfieldDescriptor:
2509 OS << "<bitfield " << "lsb: " << Bitfield.LSB
2510 << ", width: " << Bitfield.Width << ">";
2512 case k_RegisterList:
2513 case k_DPRRegisterList:
2514 case k_SPRRegisterList: {
2515 OS << "<register_list ";
2517 const SmallVectorImpl<unsigned> &RegList = getRegList();
2518 for (SmallVectorImpl<unsigned>::const_iterator
2519 I = RegList.begin(), E = RegList.end(); I != E; ) {
2521 if (++I < E) OS << ", ";
2528 OS << "<vector_list " << VectorList.Count << " * "
2529 << VectorList.RegNum << ">";
2531 case k_VectorListAllLanes:
2532 OS << "<vector_list(all lanes) " << VectorList.Count << " * "
2533 << VectorList.RegNum << ">";
2535 case k_VectorListIndexed:
2536 OS << "<vector_list(lane " << VectorList.LaneIndex << ") "
2537 << VectorList.Count << " * " << VectorList.RegNum << ">";
2540 OS << "'" << getToken() << "'";
2543 OS << "<vectorindex " << getVectorIndex() << ">";
2548 /// @name Auto-generated Match Functions
2551 static unsigned MatchRegisterName(StringRef Name);
2555 bool ARMAsmParser::ParseRegister(unsigned &RegNo,
2556 SMLoc &StartLoc, SMLoc &EndLoc) {
2557 StartLoc = Parser.getTok().getLoc();
2558 EndLoc = Parser.getTok().getEndLoc();
2559 RegNo = tryParseRegister();
2561 return (RegNo == (unsigned)-1);
2564 /// Try to parse a register name. The token must be an Identifier when called,
2565 /// and if it is a register name the token is eaten and the register number is
2566 /// returned. Otherwise return -1.
2568 int ARMAsmParser::tryParseRegister() {
2569 const AsmToken &Tok = Parser.getTok();
2570 if (Tok.isNot(AsmToken::Identifier)) return -1;
2572 std::string lowerCase = Tok.getString().lower();
2573 unsigned RegNum = MatchRegisterName(lowerCase);
2575 RegNum = StringSwitch<unsigned>(lowerCase)
2576 .Case("r13", ARM::SP)
2577 .Case("r14", ARM::LR)
2578 .Case("r15", ARM::PC)
2579 .Case("ip", ARM::R12)
2580 // Additional register name aliases for 'gas' compatibility.
2581 .Case("a1", ARM::R0)
2582 .Case("a2", ARM::R1)
2583 .Case("a3", ARM::R2)
2584 .Case("a4", ARM::R3)
2585 .Case("v1", ARM::R4)
2586 .Case("v2", ARM::R5)
2587 .Case("v3", ARM::R6)
2588 .Case("v4", ARM::R7)
2589 .Case("v5", ARM::R8)
2590 .Case("v6", ARM::R9)
2591 .Case("v7", ARM::R10)
2592 .Case("v8", ARM::R11)
2593 .Case("sb", ARM::R9)
2594 .Case("sl", ARM::R10)
2595 .Case("fp", ARM::R11)
2599 // Check for aliases registered via .req. Canonicalize to lower case.
2600 // That's more consistent since register names are case insensitive, and
2601 // it's how the original entry was passed in from MC/MCParser/AsmParser.
2602 StringMap<unsigned>::const_iterator Entry = RegisterReqs.find(lowerCase);
2603 // If no match, return failure.
2604 if (Entry == RegisterReqs.end())
2606 Parser.Lex(); // Eat identifier token.
2607 return Entry->getValue();
2610 Parser.Lex(); // Eat identifier token.
2615 // Try to parse a shifter (e.g., "lsl <amt>"). On success, return 0.
2616 // If a recoverable error occurs, return 1. If an irrecoverable error
2617 // occurs, return -1. An irrecoverable error is one where tokens have been
2618 // consumed in the process of trying to parse the shifter (i.e., when it is
2619 // indeed a shifter operand, but malformed).
2620 int ARMAsmParser::tryParseShiftRegister(
2621 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2622 SMLoc S = Parser.getTok().getLoc();
2623 const AsmToken &Tok = Parser.getTok();
2624 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
2626 std::string lowerCase = Tok.getString().lower();
2627 ARM_AM::ShiftOpc ShiftTy = StringSwitch<ARM_AM::ShiftOpc>(lowerCase)
2628 .Case("asl", ARM_AM::lsl)
2629 .Case("lsl", ARM_AM::lsl)
2630 .Case("lsr", ARM_AM::lsr)
2631 .Case("asr", ARM_AM::asr)
2632 .Case("ror", ARM_AM::ror)
2633 .Case("rrx", ARM_AM::rrx)
2634 .Default(ARM_AM::no_shift);
2636 if (ShiftTy == ARM_AM::no_shift)
2639 Parser.Lex(); // Eat the operator.
2641 // The source register for the shift has already been added to the
2642 // operand list, so we need to pop it off and combine it into the shifted
2643 // register operand instead.
2644 OwningPtr<ARMOperand> PrevOp((ARMOperand*)Operands.pop_back_val());
2645 if (!PrevOp->isReg())
2646 return Error(PrevOp->getStartLoc(), "shift must be of a register");
2647 int SrcReg = PrevOp->getReg();
2652 if (ShiftTy == ARM_AM::rrx) {
2653 // RRX Doesn't have an explicit shift amount. The encoder expects
2654 // the shift register to be the same as the source register. Seems odd,
2658 // Figure out if this is shifted by a constant or a register (for non-RRX).
2659 if (Parser.getTok().is(AsmToken::Hash) ||
2660 Parser.getTok().is(AsmToken::Dollar)) {
2661 Parser.Lex(); // Eat hash.
2662 SMLoc ImmLoc = Parser.getTok().getLoc();
2663 const MCExpr *ShiftExpr = 0;
2664 if (getParser().parseExpression(ShiftExpr, EndLoc)) {
2665 Error(ImmLoc, "invalid immediate shift value");
2668 // The expression must be evaluatable as an immediate.
2669 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftExpr);
2671 Error(ImmLoc, "invalid immediate shift value");
2674 // Range check the immediate.
2675 // lsl, ror: 0 <= imm <= 31
2676 // lsr, asr: 0 <= imm <= 32
2677 Imm = CE->getValue();
2679 ((ShiftTy == ARM_AM::lsl || ShiftTy == ARM_AM::ror) && Imm > 31) ||
2680 ((ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr) && Imm > 32)) {
2681 Error(ImmLoc, "immediate shift value out of range");
2684 // shift by zero is a nop. Always send it through as lsl.
2685 // ('as' compatibility)
2687 ShiftTy = ARM_AM::lsl;
2688 } else if (Parser.getTok().is(AsmToken::Identifier)) {
2689 SMLoc L = Parser.getTok().getLoc();
2690 EndLoc = Parser.getTok().getEndLoc();
2691 ShiftReg = tryParseRegister();
2692 if (ShiftReg == -1) {
2693 Error (L, "expected immediate or register in shift operand");
2697 Error (Parser.getTok().getLoc(),
2698 "expected immediate or register in shift operand");
2703 if (ShiftReg && ShiftTy != ARM_AM::rrx)
2704 Operands.push_back(ARMOperand::CreateShiftedRegister(ShiftTy, SrcReg,
2708 Operands.push_back(ARMOperand::CreateShiftedImmediate(ShiftTy, SrcReg, Imm,
2715 /// Try to parse a register name. The token must be an Identifier when called.
2716 /// If it's a register, an AsmOperand is created. Another AsmOperand is created
2717 /// if there is a "writeback". 'true' if it's not a register.
2719 /// TODO this is likely to change to allow different register types and or to
2720 /// parse for a specific register type.
2722 tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2723 const AsmToken &RegTok = Parser.getTok();
2724 int RegNo = tryParseRegister();
2728 Operands.push_back(ARMOperand::CreateReg(RegNo, RegTok.getLoc(),
2729 RegTok.getEndLoc()));
2731 const AsmToken &ExclaimTok = Parser.getTok();
2732 if (ExclaimTok.is(AsmToken::Exclaim)) {
2733 Operands.push_back(ARMOperand::CreateToken(ExclaimTok.getString(),
2734 ExclaimTok.getLoc()));
2735 Parser.Lex(); // Eat exclaim token
2739 // Also check for an index operand. This is only legal for vector registers,
2740 // but that'll get caught OK in operand matching, so we don't need to
2741 // explicitly filter everything else out here.
2742 if (Parser.getTok().is(AsmToken::LBrac)) {
2743 SMLoc SIdx = Parser.getTok().getLoc();
2744 Parser.Lex(); // Eat left bracket token.
2746 const MCExpr *ImmVal;
2747 if (getParser().parseExpression(ImmVal))
2749 const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(ImmVal);
2751 return TokError("immediate value expected for vector index");
2753 if (Parser.getTok().isNot(AsmToken::RBrac))
2754 return Error(Parser.getTok().getLoc(), "']' expected");
2756 SMLoc E = Parser.getTok().getEndLoc();
2757 Parser.Lex(); // Eat right bracket token.
2759 Operands.push_back(ARMOperand::CreateVectorIndex(MCE->getValue(),
2767 /// MatchCoprocessorOperandName - Try to parse an coprocessor related
2768 /// instruction with a symbolic operand name. Example: "p1", "p7", "c3",
2770 static int MatchCoprocessorOperandName(StringRef Name, char CoprocOp) {
2771 // Use the same layout as the tablegen'erated register name matcher. Ugly,
2773 switch (Name.size()) {
2776 if (Name[0] != CoprocOp)
2792 if (Name[0] != CoprocOp || Name[1] != '1')
2796 case '0': return 10;
2797 case '1': return 11;
2798 case '2': return 12;
2799 case '3': return 13;
2800 case '4': return 14;
2801 case '5': return 15;
2806 /// parseITCondCode - Try to parse a condition code for an IT instruction.
2807 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2808 parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2809 SMLoc S = Parser.getTok().getLoc();
2810 const AsmToken &Tok = Parser.getTok();
2811 if (!Tok.is(AsmToken::Identifier))
2812 return MatchOperand_NoMatch;
2813 unsigned CC = StringSwitch<unsigned>(Tok.getString().lower())
2814 .Case("eq", ARMCC::EQ)
2815 .Case("ne", ARMCC::NE)
2816 .Case("hs", ARMCC::HS)
2817 .Case("cs", ARMCC::HS)
2818 .Case("lo", ARMCC::LO)
2819 .Case("cc", ARMCC::LO)
2820 .Case("mi", ARMCC::MI)
2821 .Case("pl", ARMCC::PL)
2822 .Case("vs", ARMCC::VS)
2823 .Case("vc", ARMCC::VC)
2824 .Case("hi", ARMCC::HI)
2825 .Case("ls", ARMCC::LS)
2826 .Case("ge", ARMCC::GE)
2827 .Case("lt", ARMCC::LT)
2828 .Case("gt", ARMCC::GT)
2829 .Case("le", ARMCC::LE)
2830 .Case("al", ARMCC::AL)
2833 return MatchOperand_NoMatch;
2834 Parser.Lex(); // Eat the token.
2836 Operands.push_back(ARMOperand::CreateCondCode(ARMCC::CondCodes(CC), S));
2838 return MatchOperand_Success;
2841 /// parseCoprocNumOperand - Try to parse an coprocessor number operand. The
2842 /// token must be an Identifier when called, and if it is a coprocessor
2843 /// number, the token is eaten and the operand is added to the operand list.
2844 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2845 parseCoprocNumOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2846 SMLoc S = Parser.getTok().getLoc();
2847 const AsmToken &Tok = Parser.getTok();
2848 if (Tok.isNot(AsmToken::Identifier))
2849 return MatchOperand_NoMatch;
2851 int Num = MatchCoprocessorOperandName(Tok.getString(), 'p');
2853 return MatchOperand_NoMatch;
2855 Parser.Lex(); // Eat identifier token.
2856 Operands.push_back(ARMOperand::CreateCoprocNum(Num, S));
2857 return MatchOperand_Success;
2860 /// parseCoprocRegOperand - Try to parse an coprocessor register operand. The
2861 /// token must be an Identifier when called, and if it is a coprocessor
2862 /// number, the token is eaten and the operand is added to the operand list.
2863 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2864 parseCoprocRegOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2865 SMLoc S = Parser.getTok().getLoc();
2866 const AsmToken &Tok = Parser.getTok();
2867 if (Tok.isNot(AsmToken::Identifier))
2868 return MatchOperand_NoMatch;
2870 int Reg = MatchCoprocessorOperandName(Tok.getString(), 'c');
2872 return MatchOperand_NoMatch;
2874 Parser.Lex(); // Eat identifier token.
2875 Operands.push_back(ARMOperand::CreateCoprocReg(Reg, S));
2876 return MatchOperand_Success;
2879 /// parseCoprocOptionOperand - Try to parse an coprocessor option operand.
2880 /// coproc_option : '{' imm0_255 '}'
2881 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2882 parseCoprocOptionOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2883 SMLoc S = Parser.getTok().getLoc();
2885 // If this isn't a '{', this isn't a coprocessor immediate operand.
2886 if (Parser.getTok().isNot(AsmToken::LCurly))
2887 return MatchOperand_NoMatch;
2888 Parser.Lex(); // Eat the '{'
2891 SMLoc Loc = Parser.getTok().getLoc();
2892 if (getParser().parseExpression(Expr)) {
2893 Error(Loc, "illegal expression");
2894 return MatchOperand_ParseFail;
2896 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
2897 if (!CE || CE->getValue() < 0 || CE->getValue() > 255) {
2898 Error(Loc, "coprocessor option must be an immediate in range [0, 255]");
2899 return MatchOperand_ParseFail;
2901 int Val = CE->getValue();
2903 // Check for and consume the closing '}'
2904 if (Parser.getTok().isNot(AsmToken::RCurly))
2905 return MatchOperand_ParseFail;
2906 SMLoc E = Parser.getTok().getEndLoc();
2907 Parser.Lex(); // Eat the '}'
2909 Operands.push_back(ARMOperand::CreateCoprocOption(Val, S, E));
2910 return MatchOperand_Success;
2913 // For register list parsing, we need to map from raw GPR register numbering
2914 // to the enumeration values. The enumeration values aren't sorted by
2915 // register number due to our using "sp", "lr" and "pc" as canonical names.
2916 static unsigned getNextRegister(unsigned Reg) {
2917 // If this is a GPR, we need to do it manually, otherwise we can rely
2918 // on the sort ordering of the enumeration since the other reg-classes
2920 if (!ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
2923 default: llvm_unreachable("Invalid GPR number!");
2924 case ARM::R0: return ARM::R1; case ARM::R1: return ARM::R2;
2925 case ARM::R2: return ARM::R3; case ARM::R3: return ARM::R4;
2926 case ARM::R4: return ARM::R5; case ARM::R5: return ARM::R6;
2927 case ARM::R6: return ARM::R7; case ARM::R7: return ARM::R8;
2928 case ARM::R8: return ARM::R9; case ARM::R9: return ARM::R10;
2929 case ARM::R10: return ARM::R11; case ARM::R11: return ARM::R12;
2930 case ARM::R12: return ARM::SP; case ARM::SP: return ARM::LR;
2931 case ARM::LR: return ARM::PC; case ARM::PC: return ARM::R0;
2935 // Return the low-subreg of a given Q register.
2936 static unsigned getDRegFromQReg(unsigned QReg) {
2938 default: llvm_unreachable("expected a Q register!");
2939 case ARM::Q0: return ARM::D0;
2940 case ARM::Q1: return ARM::D2;
2941 case ARM::Q2: return ARM::D4;
2942 case ARM::Q3: return ARM::D6;
2943 case ARM::Q4: return ARM::D8;
2944 case ARM::Q5: return ARM::D10;
2945 case ARM::Q6: return ARM::D12;
2946 case ARM::Q7: return ARM::D14;
2947 case ARM::Q8: return ARM::D16;
2948 case ARM::Q9: return ARM::D18;
2949 case ARM::Q10: return ARM::D20;
2950 case ARM::Q11: return ARM::D22;
2951 case ARM::Q12: return ARM::D24;
2952 case ARM::Q13: return ARM::D26;
2953 case ARM::Q14: return ARM::D28;
2954 case ARM::Q15: return ARM::D30;
2958 /// Parse a register list.
2960 parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2961 assert(Parser.getTok().is(AsmToken::LCurly) &&
2962 "Token is not a Left Curly Brace");
2963 SMLoc S = Parser.getTok().getLoc();
2964 Parser.Lex(); // Eat '{' token.
2965 SMLoc RegLoc = Parser.getTok().getLoc();
2967 // Check the first register in the list to see what register class
2968 // this is a list of.
2969 int Reg = tryParseRegister();
2971 return Error(RegLoc, "register expected");
2973 // The reglist instructions have at most 16 registers, so reserve
2974 // space for that many.
2975 SmallVector<std::pair<unsigned, SMLoc>, 16> Registers;
2977 // Allow Q regs and just interpret them as the two D sub-registers.
2978 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
2979 Reg = getDRegFromQReg(Reg);
2980 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2983 const MCRegisterClass *RC;
2984 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
2985 RC = &ARMMCRegisterClasses[ARM::GPRRegClassID];
2986 else if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg))
2987 RC = &ARMMCRegisterClasses[ARM::DPRRegClassID];
2988 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].contains(Reg))
2989 RC = &ARMMCRegisterClasses[ARM::SPRRegClassID];
2991 return Error(RegLoc, "invalid register in register list");
2993 // Store the register.
2994 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2996 // This starts immediately after the first register token in the list,
2997 // so we can see either a comma or a minus (range separator) as a legal
2999 while (Parser.getTok().is(AsmToken::Comma) ||
3000 Parser.getTok().is(AsmToken::Minus)) {
3001 if (Parser.getTok().is(AsmToken::Minus)) {
3002 Parser.Lex(); // Eat the minus.
3003 SMLoc AfterMinusLoc = Parser.getTok().getLoc();
3004 int EndReg = tryParseRegister();
3006 return Error(AfterMinusLoc, "register expected");
3007 // Allow Q regs and just interpret them as the two D sub-registers.
3008 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3009 EndReg = getDRegFromQReg(EndReg) + 1;
3010 // If the register is the same as the start reg, there's nothing
3014 // The register must be in the same register class as the first.
3015 if (!RC->contains(EndReg))
3016 return Error(AfterMinusLoc, "invalid register in register list");
3017 // Ranges must go from low to high.
3018 if (MRI->getEncodingValue(Reg) > MRI->getEncodingValue(EndReg))
3019 return Error(AfterMinusLoc, "bad range in register list");
3021 // Add all the registers in the range to the register list.
3022 while (Reg != EndReg) {
3023 Reg = getNextRegister(Reg);
3024 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
3028 Parser.Lex(); // Eat the comma.
3029 RegLoc = Parser.getTok().getLoc();
3031 const AsmToken RegTok = Parser.getTok();
3032 Reg = tryParseRegister();
3034 return Error(RegLoc, "register expected");
3035 // Allow Q regs and just interpret them as the two D sub-registers.
3036 bool isQReg = false;
3037 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3038 Reg = getDRegFromQReg(Reg);
3041 // The register must be in the same register class as the first.
3042 if (!RC->contains(Reg))
3043 return Error(RegLoc, "invalid register in register list");
3044 // List must be monotonically increasing.
3045 if (MRI->getEncodingValue(Reg) < MRI->getEncodingValue(OldReg)) {
3046 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
3047 Warning(RegLoc, "register list not in ascending order");
3049 return Error(RegLoc, "register list not in ascending order");
3051 if (MRI->getEncodingValue(Reg) == MRI->getEncodingValue(OldReg)) {
3052 Warning(RegLoc, "duplicated register (" + RegTok.getString() +
3053 ") in register list");
3056 // VFP register lists must also be contiguous.
3057 // It's OK to use the enumeration values directly here rather, as the
3058 // VFP register classes have the enum sorted properly.
3059 if (RC != &ARMMCRegisterClasses[ARM::GPRRegClassID] &&
3061 return Error(RegLoc, "non-contiguous register range");
3062 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
3064 Registers.push_back(std::pair<unsigned, SMLoc>(++Reg, RegLoc));
3067 if (Parser.getTok().isNot(AsmToken::RCurly))
3068 return Error(Parser.getTok().getLoc(), "'}' expected");
3069 SMLoc E = Parser.getTok().getEndLoc();
3070 Parser.Lex(); // Eat '}' token.
3072 // Push the register list operand.
3073 Operands.push_back(ARMOperand::CreateRegList(Registers, S, E));
3075 // The ARM system instruction variants for LDM/STM have a '^' token here.
3076 if (Parser.getTok().is(AsmToken::Caret)) {
3077 Operands.push_back(ARMOperand::CreateToken("^",Parser.getTok().getLoc()));
3078 Parser.Lex(); // Eat '^' token.
3084 // Helper function to parse the lane index for vector lists.
3085 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3086 parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index, SMLoc &EndLoc) {
3087 Index = 0; // Always return a defined index value.
3088 if (Parser.getTok().is(AsmToken::LBrac)) {
3089 Parser.Lex(); // Eat the '['.
3090 if (Parser.getTok().is(AsmToken::RBrac)) {
3091 // "Dn[]" is the 'all lanes' syntax.
3092 LaneKind = AllLanes;
3093 EndLoc = Parser.getTok().getEndLoc();
3094 Parser.Lex(); // Eat the ']'.
3095 return MatchOperand_Success;
3098 // There's an optional '#' token here. Normally there wouldn't be, but
3099 // inline assemble puts one in, and it's friendly to accept that.
3100 if (Parser.getTok().is(AsmToken::Hash))
3101 Parser.Lex(); // Eat '#' or '$'.
3103 const MCExpr *LaneIndex;
3104 SMLoc Loc = Parser.getTok().getLoc();
3105 if (getParser().parseExpression(LaneIndex)) {
3106 Error(Loc, "illegal expression");
3107 return MatchOperand_ParseFail;
3109 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LaneIndex);
3111 Error(Loc, "lane index must be empty or an integer");
3112 return MatchOperand_ParseFail;
3114 if (Parser.getTok().isNot(AsmToken::RBrac)) {
3115 Error(Parser.getTok().getLoc(), "']' expected");
3116 return MatchOperand_ParseFail;
3118 EndLoc = Parser.getTok().getEndLoc();
3119 Parser.Lex(); // Eat the ']'.
3120 int64_t Val = CE->getValue();
3122 // FIXME: Make this range check context sensitive for .8, .16, .32.
3123 if (Val < 0 || Val > 7) {
3124 Error(Parser.getTok().getLoc(), "lane index out of range");
3125 return MatchOperand_ParseFail;
3128 LaneKind = IndexedLane;
3129 return MatchOperand_Success;
3132 return MatchOperand_Success;
3135 // parse a vector register list
3136 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3137 parseVectorList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3138 VectorLaneTy LaneKind;
3140 SMLoc S = Parser.getTok().getLoc();
3141 // As an extension (to match gas), support a plain D register or Q register
3142 // (without encosing curly braces) as a single or double entry list,
3144 if (Parser.getTok().is(AsmToken::Identifier)) {
3145 SMLoc E = Parser.getTok().getEndLoc();
3146 int Reg = tryParseRegister();
3148 return MatchOperand_NoMatch;
3149 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg)) {
3150 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex, E);
3151 if (Res != MatchOperand_Success)
3155 Operands.push_back(ARMOperand::CreateVectorList(Reg, 1, false, S, E));
3158 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 1, false,
3162 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 1,
3167 return MatchOperand_Success;
3169 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3170 Reg = getDRegFromQReg(Reg);
3171 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex, E);
3172 if (Res != MatchOperand_Success)
3176 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3177 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3178 Operands.push_back(ARMOperand::CreateVectorList(Reg, 2, false, S, E));
3181 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3182 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3183 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 2, false,
3187 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 2,
3192 return MatchOperand_Success;
3194 Error(S, "vector register expected");
3195 return MatchOperand_ParseFail;
3198 if (Parser.getTok().isNot(AsmToken::LCurly))
3199 return MatchOperand_NoMatch;
3201 Parser.Lex(); // Eat '{' token.
3202 SMLoc RegLoc = Parser.getTok().getLoc();
3204 int Reg = tryParseRegister();
3206 Error(RegLoc, "register expected");
3207 return MatchOperand_ParseFail;
3211 unsigned FirstReg = Reg;
3212 // The list is of D registers, but we also allow Q regs and just interpret
3213 // them as the two D sub-registers.
3214 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3215 FirstReg = Reg = getDRegFromQReg(Reg);
3216 Spacing = 1; // double-spacing requires explicit D registers, otherwise
3217 // it's ambiguous with four-register single spaced.
3223 if (parseVectorLane(LaneKind, LaneIndex, E) != MatchOperand_Success)
3224 return MatchOperand_ParseFail;
3226 while (Parser.getTok().is(AsmToken::Comma) ||
3227 Parser.getTok().is(AsmToken::Minus)) {
3228 if (Parser.getTok().is(AsmToken::Minus)) {
3230 Spacing = 1; // Register range implies a single spaced list.
3231 else if (Spacing == 2) {
3232 Error(Parser.getTok().getLoc(),
3233 "sequential registers in double spaced list");
3234 return MatchOperand_ParseFail;
3236 Parser.Lex(); // Eat the minus.
3237 SMLoc AfterMinusLoc = Parser.getTok().getLoc();
3238 int EndReg = tryParseRegister();
3240 Error(AfterMinusLoc, "register expected");
3241 return MatchOperand_ParseFail;
3243 // Allow Q regs and just interpret them as the two D sub-registers.
3244 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3245 EndReg = getDRegFromQReg(EndReg) + 1;
3246 // If the register is the same as the start reg, there's nothing
3250 // The register must be in the same register class as the first.
3251 if (!ARMMCRegisterClasses[ARM::DPRRegClassID].contains(EndReg)) {
3252 Error(AfterMinusLoc, "invalid register in register list");
3253 return MatchOperand_ParseFail;
3255 // Ranges must go from low to high.
3257 Error(AfterMinusLoc, "bad range in register list");
3258 return MatchOperand_ParseFail;
3260 // Parse the lane specifier if present.
3261 VectorLaneTy NextLaneKind;
3262 unsigned NextLaneIndex;
3263 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) !=
3264 MatchOperand_Success)
3265 return MatchOperand_ParseFail;
3266 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3267 Error(AfterMinusLoc, "mismatched lane index in register list");
3268 return MatchOperand_ParseFail;
3271 // Add all the registers in the range to the register list.
3272 Count += EndReg - Reg;
3276 Parser.Lex(); // Eat the comma.
3277 RegLoc = Parser.getTok().getLoc();
3279 Reg = tryParseRegister();
3281 Error(RegLoc, "register expected");
3282 return MatchOperand_ParseFail;
3284 // vector register lists must be contiguous.
3285 // It's OK to use the enumeration values directly here rather, as the
3286 // VFP register classes have the enum sorted properly.
3288 // The list is of D registers, but we also allow Q regs and just interpret
3289 // them as the two D sub-registers.
3290 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3292 Spacing = 1; // Register range implies a single spaced list.
3293 else if (Spacing == 2) {
3295 "invalid register in double-spaced list (must be 'D' register')");
3296 return MatchOperand_ParseFail;
3298 Reg = getDRegFromQReg(Reg);
3299 if (Reg != OldReg + 1) {
3300 Error(RegLoc, "non-contiguous register range");
3301 return MatchOperand_ParseFail;
3305 // Parse the lane specifier if present.
3306 VectorLaneTy NextLaneKind;
3307 unsigned NextLaneIndex;
3308 SMLoc LaneLoc = Parser.getTok().getLoc();
3309 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) !=
3310 MatchOperand_Success)
3311 return MatchOperand_ParseFail;
3312 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3313 Error(LaneLoc, "mismatched lane index in register list");
3314 return MatchOperand_ParseFail;
3318 // Normal D register.
3319 // Figure out the register spacing (single or double) of the list if
3320 // we don't know it already.
3322 Spacing = 1 + (Reg == OldReg + 2);
3324 // Just check that it's contiguous and keep going.
3325 if (Reg != OldReg + Spacing) {
3326 Error(RegLoc, "non-contiguous register range");
3327 return MatchOperand_ParseFail;
3330 // Parse the lane specifier if present.
3331 VectorLaneTy NextLaneKind;
3332 unsigned NextLaneIndex;
3333 SMLoc EndLoc = Parser.getTok().getLoc();
3334 if (parseVectorLane(NextLaneKind, NextLaneIndex, E) != MatchOperand_Success)
3335 return MatchOperand_ParseFail;
3336 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3337 Error(EndLoc, "mismatched lane index in register list");
3338 return MatchOperand_ParseFail;
3342 if (Parser.getTok().isNot(AsmToken::RCurly)) {
3343 Error(Parser.getTok().getLoc(), "'}' expected");
3344 return MatchOperand_ParseFail;
3346 E = Parser.getTok().getEndLoc();
3347 Parser.Lex(); // Eat '}' token.
3351 // Two-register operands have been converted to the
3352 // composite register classes.
3354 const MCRegisterClass *RC = (Spacing == 1) ?
3355 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3356 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3357 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3360 Operands.push_back(ARMOperand::CreateVectorList(FirstReg, Count,
3361 (Spacing == 2), S, E));
3364 // Two-register operands have been converted to the
3365 // composite register classes.
3367 const MCRegisterClass *RC = (Spacing == 1) ?
3368 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3369 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3370 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3372 Operands.push_back(ARMOperand::CreateVectorListAllLanes(FirstReg, Count,
3377 Operands.push_back(ARMOperand::CreateVectorListIndexed(FirstReg, Count,
3383 return MatchOperand_Success;
3386 /// parseMemBarrierOptOperand - Try to parse DSB/DMB data barrier options.
3387 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3388 parseMemBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3389 SMLoc S = Parser.getTok().getLoc();
3390 const AsmToken &Tok = Parser.getTok();
3393 if (Tok.is(AsmToken::Identifier)) {
3394 StringRef OptStr = Tok.getString();
3396 Opt = StringSwitch<unsigned>(OptStr.slice(0, OptStr.size()).lower())
3397 .Case("sy", ARM_MB::SY)
3398 .Case("st", ARM_MB::ST)
3399 .Case("sh", ARM_MB::ISH)
3400 .Case("ish", ARM_MB::ISH)
3401 .Case("shst", ARM_MB::ISHST)
3402 .Case("ishst", ARM_MB::ISHST)
3403 .Case("nsh", ARM_MB::NSH)
3404 .Case("un", ARM_MB::NSH)
3405 .Case("nshst", ARM_MB::NSHST)
3406 .Case("unst", ARM_MB::NSHST)
3407 .Case("osh", ARM_MB::OSH)
3408 .Case("oshst", ARM_MB::OSHST)
3412 return MatchOperand_NoMatch;
3414 Parser.Lex(); // Eat identifier token.
3415 } else if (Tok.is(AsmToken::Hash) ||
3416 Tok.is(AsmToken::Dollar) ||
3417 Tok.is(AsmToken::Integer)) {
3418 if (Parser.getTok().isNot(AsmToken::Integer))
3419 Parser.Lex(); // Eat '#' or '$'.
3420 SMLoc Loc = Parser.getTok().getLoc();
3422 const MCExpr *MemBarrierID;
3423 if (getParser().parseExpression(MemBarrierID)) {
3424 Error(Loc, "illegal expression");
3425 return MatchOperand_ParseFail;
3428 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(MemBarrierID);
3430 Error(Loc, "constant expression expected");
3431 return MatchOperand_ParseFail;
3434 int Val = CE->getValue();
3436 Error(Loc, "immediate value out of range");
3437 return MatchOperand_ParseFail;
3440 Opt = ARM_MB::RESERVED_0 + Val;
3442 return MatchOperand_ParseFail;
3444 Operands.push_back(ARMOperand::CreateMemBarrierOpt((ARM_MB::MemBOpt)Opt, S));
3445 return MatchOperand_Success;
3448 /// parseInstSyncBarrierOptOperand - Try to parse ISB inst sync barrier options.
3449 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3450 parseInstSyncBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3451 SMLoc S = Parser.getTok().getLoc();
3452 const AsmToken &Tok = Parser.getTok();
3455 if (Tok.is(AsmToken::Identifier)) {
3456 StringRef OptStr = Tok.getString();
3458 if (OptStr.lower() == "sy")
3461 return MatchOperand_NoMatch;
3463 Parser.Lex(); // Eat identifier token.
3464 } else if (Tok.is(AsmToken::Hash) ||
3465 Tok.is(AsmToken::Dollar) ||
3466 Tok.is(AsmToken::Integer)) {
3467 if (Parser.getTok().isNot(AsmToken::Integer))
3468 Parser.Lex(); // Eat '#' or '$'.
3469 SMLoc Loc = Parser.getTok().getLoc();
3471 const MCExpr *ISBarrierID;
3472 if (getParser().parseExpression(ISBarrierID)) {
3473 Error(Loc, "illegal expression");
3474 return MatchOperand_ParseFail;
3477 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ISBarrierID);
3479 Error(Loc, "constant expression expected");
3480 return MatchOperand_ParseFail;
3483 int Val = CE->getValue();
3485 Error(Loc, "immediate value out of range");
3486 return MatchOperand_ParseFail;
3489 Opt = ARM_ISB::RESERVED_0 + Val;
3491 return MatchOperand_ParseFail;
3493 Operands.push_back(ARMOperand::CreateInstSyncBarrierOpt(
3494 (ARM_ISB::InstSyncBOpt)Opt, S));
3495 return MatchOperand_Success;
3499 /// parseProcIFlagsOperand - Try to parse iflags from CPS instruction.
3500 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3501 parseProcIFlagsOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3502 SMLoc S = Parser.getTok().getLoc();
3503 const AsmToken &Tok = Parser.getTok();
3504 if (!Tok.is(AsmToken::Identifier))
3505 return MatchOperand_NoMatch;
3506 StringRef IFlagsStr = Tok.getString();
3508 // An iflags string of "none" is interpreted to mean that none of the AIF
3509 // bits are set. Not a terribly useful instruction, but a valid encoding.
3510 unsigned IFlags = 0;
3511 if (IFlagsStr != "none") {
3512 for (int i = 0, e = IFlagsStr.size(); i != e; ++i) {
3513 unsigned Flag = StringSwitch<unsigned>(IFlagsStr.substr(i, 1))
3514 .Case("a", ARM_PROC::A)
3515 .Case("i", ARM_PROC::I)
3516 .Case("f", ARM_PROC::F)
3519 // If some specific iflag is already set, it means that some letter is
3520 // present more than once, this is not acceptable.
3521 if (Flag == ~0U || (IFlags & Flag))
3522 return MatchOperand_NoMatch;
3528 Parser.Lex(); // Eat identifier token.
3529 Operands.push_back(ARMOperand::CreateProcIFlags((ARM_PROC::IFlags)IFlags, S));
3530 return MatchOperand_Success;
3533 /// parseMSRMaskOperand - Try to parse mask flags from MSR instruction.
3534 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3535 parseMSRMaskOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3536 SMLoc S = Parser.getTok().getLoc();
3537 const AsmToken &Tok = Parser.getTok();
3538 if (!Tok.is(AsmToken::Identifier))
3539 return MatchOperand_NoMatch;
3540 StringRef Mask = Tok.getString();
3543 // See ARMv6-M 10.1.1
3544 std::string Name = Mask.lower();
3545 unsigned FlagsVal = StringSwitch<unsigned>(Name)
3546 // Note: in the documentation:
3547 // ARM deprecates using MSR APSR without a _<bits> qualifier as an alias
3548 // for MSR APSR_nzcvq.
3549 // but we do make it an alias here. This is so to get the "mask encoding"
3550 // bits correct on MSR APSR writes.
3552 // FIXME: Note the 0xc00 "mask encoding" bits version of the registers
3553 // should really only be allowed when writing a special register. Note
3554 // they get dropped in the MRS instruction reading a special register as
3555 // the SYSm field is only 8 bits.
3557 // FIXME: the _g and _nzcvqg versions are only allowed if the processor
3558 // includes the DSP extension but that is not checked.
3559 .Case("apsr", 0x800)
3560 .Case("apsr_nzcvq", 0x800)
3561 .Case("apsr_g", 0x400)
3562 .Case("apsr_nzcvqg", 0xc00)
3563 .Case("iapsr", 0x801)
3564 .Case("iapsr_nzcvq", 0x801)
3565 .Case("iapsr_g", 0x401)
3566 .Case("iapsr_nzcvqg", 0xc01)
3567 .Case("eapsr", 0x802)
3568 .Case("eapsr_nzcvq", 0x802)
3569 .Case("eapsr_g", 0x402)
3570 .Case("eapsr_nzcvqg", 0xc02)
3571 .Case("xpsr", 0x803)
3572 .Case("xpsr_nzcvq", 0x803)
3573 .Case("xpsr_g", 0x403)
3574 .Case("xpsr_nzcvqg", 0xc03)
3575 .Case("ipsr", 0x805)
3576 .Case("epsr", 0x806)
3577 .Case("iepsr", 0x807)
3580 .Case("primask", 0x810)
3581 .Case("basepri", 0x811)
3582 .Case("basepri_max", 0x812)
3583 .Case("faultmask", 0x813)
3584 .Case("control", 0x814)
3587 if (FlagsVal == ~0U)
3588 return MatchOperand_NoMatch;
3590 if (!hasV7Ops() && FlagsVal >= 0x811 && FlagsVal <= 0x813)
3591 // basepri, basepri_max and faultmask only valid for V7m.
3592 return MatchOperand_NoMatch;
3594 Parser.Lex(); // Eat identifier token.
3595 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3596 return MatchOperand_Success;
3599 // Split spec_reg from flag, example: CPSR_sxf => "CPSR" and "sxf"
3600 size_t Start = 0, Next = Mask.find('_');
3601 StringRef Flags = "";
3602 std::string SpecReg = Mask.slice(Start, Next).lower();
3603 if (Next != StringRef::npos)
3604 Flags = Mask.slice(Next+1, Mask.size());
3606 // FlagsVal contains the complete mask:
3608 // 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3609 unsigned FlagsVal = 0;
3611 if (SpecReg == "apsr") {
3612 FlagsVal = StringSwitch<unsigned>(Flags)
3613 .Case("nzcvq", 0x8) // same as CPSR_f
3614 .Case("g", 0x4) // same as CPSR_s
3615 .Case("nzcvqg", 0xc) // same as CPSR_fs
3618 if (FlagsVal == ~0U) {
3620 return MatchOperand_NoMatch;
3622 FlagsVal = 8; // No flag
3624 } else if (SpecReg == "cpsr" || SpecReg == "spsr") {
3625 // cpsr_all is an alias for cpsr_fc, as is plain cpsr.
3626 if (Flags == "all" || Flags == "")
3628 for (int i = 0, e = Flags.size(); i != e; ++i) {
3629 unsigned Flag = StringSwitch<unsigned>(Flags.substr(i, 1))
3636 // If some specific flag is already set, it means that some letter is
3637 // present more than once, this is not acceptable.
3638 if (FlagsVal == ~0U || (FlagsVal & Flag))
3639 return MatchOperand_NoMatch;
3642 } else // No match for special register.
3643 return MatchOperand_NoMatch;
3645 // Special register without flags is NOT equivalent to "fc" flags.
3646 // NOTE: This is a divergence from gas' behavior. Uncommenting the following
3647 // two lines would enable gas compatibility at the expense of breaking
3653 // Bit 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3654 if (SpecReg == "spsr")
3657 Parser.Lex(); // Eat identifier token.
3658 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3659 return MatchOperand_Success;
3662 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3663 parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands, StringRef Op,
3664 int Low, int High) {
3665 const AsmToken &Tok = Parser.getTok();
3666 if (Tok.isNot(AsmToken::Identifier)) {
3667 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3668 return MatchOperand_ParseFail;
3670 StringRef ShiftName = Tok.getString();
3671 std::string LowerOp = Op.lower();
3672 std::string UpperOp = Op.upper();
3673 if (ShiftName != LowerOp && ShiftName != UpperOp) {
3674 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3675 return MatchOperand_ParseFail;
3677 Parser.Lex(); // Eat shift type token.
3679 // There must be a '#' and a shift amount.
3680 if (Parser.getTok().isNot(AsmToken::Hash) &&
3681 Parser.getTok().isNot(AsmToken::Dollar)) {
3682 Error(Parser.getTok().getLoc(), "'#' expected");
3683 return MatchOperand_ParseFail;
3685 Parser.Lex(); // Eat hash token.
3687 const MCExpr *ShiftAmount;
3688 SMLoc Loc = Parser.getTok().getLoc();
3690 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
3691 Error(Loc, "illegal expression");
3692 return MatchOperand_ParseFail;
3694 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3696 Error(Loc, "constant expression expected");
3697 return MatchOperand_ParseFail;
3699 int Val = CE->getValue();
3700 if (Val < Low || Val > High) {
3701 Error(Loc, "immediate value out of range");
3702 return MatchOperand_ParseFail;
3705 Operands.push_back(ARMOperand::CreateImm(CE, Loc, EndLoc));
3707 return MatchOperand_Success;
3710 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3711 parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3712 const AsmToken &Tok = Parser.getTok();
3713 SMLoc S = Tok.getLoc();
3714 if (Tok.isNot(AsmToken::Identifier)) {
3715 Error(S, "'be' or 'le' operand expected");
3716 return MatchOperand_ParseFail;
3718 int Val = StringSwitch<int>(Tok.getString().lower())
3722 Parser.Lex(); // Eat the token.
3725 Error(S, "'be' or 'le' operand expected");
3726 return MatchOperand_ParseFail;
3728 Operands.push_back(ARMOperand::CreateImm(MCConstantExpr::Create(Val,
3730 S, Tok.getEndLoc()));
3731 return MatchOperand_Success;
3734 /// parseShifterImm - Parse the shifter immediate operand for SSAT/USAT
3735 /// instructions. Legal values are:
3736 /// lsl #n 'n' in [0,31]
3737 /// asr #n 'n' in [1,32]
3738 /// n == 32 encoded as n == 0.
3739 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3740 parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3741 const AsmToken &Tok = Parser.getTok();
3742 SMLoc S = Tok.getLoc();
3743 if (Tok.isNot(AsmToken::Identifier)) {
3744 Error(S, "shift operator 'asr' or 'lsl' expected");
3745 return MatchOperand_ParseFail;
3747 StringRef ShiftName = Tok.getString();
3749 if (ShiftName == "lsl" || ShiftName == "LSL")
3751 else if (ShiftName == "asr" || ShiftName == "ASR")
3754 Error(S, "shift operator 'asr' or 'lsl' expected");
3755 return MatchOperand_ParseFail;
3757 Parser.Lex(); // Eat the operator.
3759 // A '#' and a shift amount.
3760 if (Parser.getTok().isNot(AsmToken::Hash) &&
3761 Parser.getTok().isNot(AsmToken::Dollar)) {
3762 Error(Parser.getTok().getLoc(), "'#' expected");
3763 return MatchOperand_ParseFail;
3765 Parser.Lex(); // Eat hash token.
3766 SMLoc ExLoc = Parser.getTok().getLoc();
3768 const MCExpr *ShiftAmount;
3770 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
3771 Error(ExLoc, "malformed shift expression");
3772 return MatchOperand_ParseFail;
3774 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3776 Error(ExLoc, "shift amount must be an immediate");
3777 return MatchOperand_ParseFail;
3780 int64_t Val = CE->getValue();
3782 // Shift amount must be in [1,32]
3783 if (Val < 1 || Val > 32) {
3784 Error(ExLoc, "'asr' shift amount must be in range [1,32]");
3785 return MatchOperand_ParseFail;
3787 // asr #32 encoded as asr #0, but is not allowed in Thumb2 mode.
3788 if (isThumb() && Val == 32) {
3789 Error(ExLoc, "'asr #32' shift amount not allowed in Thumb mode");
3790 return MatchOperand_ParseFail;
3792 if (Val == 32) Val = 0;
3794 // Shift amount must be in [1,32]
3795 if (Val < 0 || Val > 31) {
3796 Error(ExLoc, "'lsr' shift amount must be in range [0,31]");
3797 return MatchOperand_ParseFail;
3801 Operands.push_back(ARMOperand::CreateShifterImm(isASR, Val, S, EndLoc));
3803 return MatchOperand_Success;
3806 /// parseRotImm - Parse the shifter immediate operand for SXTB/UXTB family
3807 /// of instructions. Legal values are:
3808 /// ror #n 'n' in {0, 8, 16, 24}
3809 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3810 parseRotImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3811 const AsmToken &Tok = Parser.getTok();
3812 SMLoc S = Tok.getLoc();
3813 if (Tok.isNot(AsmToken::Identifier))
3814 return MatchOperand_NoMatch;
3815 StringRef ShiftName = Tok.getString();
3816 if (ShiftName != "ror" && ShiftName != "ROR")
3817 return MatchOperand_NoMatch;
3818 Parser.Lex(); // Eat the operator.
3820 // A '#' and a rotate amount.
3821 if (Parser.getTok().isNot(AsmToken::Hash) &&
3822 Parser.getTok().isNot(AsmToken::Dollar)) {
3823 Error(Parser.getTok().getLoc(), "'#' expected");
3824 return MatchOperand_ParseFail;
3826 Parser.Lex(); // Eat hash token.
3827 SMLoc ExLoc = Parser.getTok().getLoc();
3829 const MCExpr *ShiftAmount;
3831 if (getParser().parseExpression(ShiftAmount, EndLoc)) {
3832 Error(ExLoc, "malformed rotate expression");
3833 return MatchOperand_ParseFail;
3835 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3837 Error(ExLoc, "rotate amount must be an immediate");
3838 return MatchOperand_ParseFail;
3841 int64_t Val = CE->getValue();
3842 // Shift amount must be in {0, 8, 16, 24} (0 is undocumented extension)
3843 // normally, zero is represented in asm by omitting the rotate operand
3845 if (Val != 8 && Val != 16 && Val != 24 && Val != 0) {
3846 Error(ExLoc, "'ror' rotate amount must be 8, 16, or 24");
3847 return MatchOperand_ParseFail;
3850 Operands.push_back(ARMOperand::CreateRotImm(Val, S, EndLoc));
3852 return MatchOperand_Success;
3855 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3856 parseBitfield(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3857 SMLoc S = Parser.getTok().getLoc();
3858 // The bitfield descriptor is really two operands, the LSB and the width.
3859 if (Parser.getTok().isNot(AsmToken::Hash) &&
3860 Parser.getTok().isNot(AsmToken::Dollar)) {
3861 Error(Parser.getTok().getLoc(), "'#' expected");
3862 return MatchOperand_ParseFail;
3864 Parser.Lex(); // Eat hash token.
3866 const MCExpr *LSBExpr;
3867 SMLoc E = Parser.getTok().getLoc();
3868 if (getParser().parseExpression(LSBExpr)) {
3869 Error(E, "malformed immediate expression");
3870 return MatchOperand_ParseFail;
3872 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LSBExpr);
3874 Error(E, "'lsb' operand must be an immediate");
3875 return MatchOperand_ParseFail;
3878 int64_t LSB = CE->getValue();
3879 // The LSB must be in the range [0,31]
3880 if (LSB < 0 || LSB > 31) {
3881 Error(E, "'lsb' operand must be in the range [0,31]");
3882 return MatchOperand_ParseFail;
3884 E = Parser.getTok().getLoc();
3886 // Expect another immediate operand.
3887 if (Parser.getTok().isNot(AsmToken::Comma)) {
3888 Error(Parser.getTok().getLoc(), "too few operands");
3889 return MatchOperand_ParseFail;
3891 Parser.Lex(); // Eat hash token.
3892 if (Parser.getTok().isNot(AsmToken::Hash) &&
3893 Parser.getTok().isNot(AsmToken::Dollar)) {
3894 Error(Parser.getTok().getLoc(), "'#' expected");
3895 return MatchOperand_ParseFail;
3897 Parser.Lex(); // Eat hash token.
3899 const MCExpr *WidthExpr;
3901 if (getParser().parseExpression(WidthExpr, EndLoc)) {
3902 Error(E, "malformed immediate expression");
3903 return MatchOperand_ParseFail;
3905 CE = dyn_cast<MCConstantExpr>(WidthExpr);
3907 Error(E, "'width' operand must be an immediate");
3908 return MatchOperand_ParseFail;
3911 int64_t Width = CE->getValue();
3912 // The LSB must be in the range [1,32-lsb]
3913 if (Width < 1 || Width > 32 - LSB) {
3914 Error(E, "'width' operand must be in the range [1,32-lsb]");
3915 return MatchOperand_ParseFail;
3918 Operands.push_back(ARMOperand::CreateBitfield(LSB, Width, S, EndLoc));
3920 return MatchOperand_Success;
3923 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3924 parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3925 // Check for a post-index addressing register operand. Specifically:
3926 // postidx_reg := '+' register {, shift}
3927 // | '-' register {, shift}
3928 // | register {, shift}
3930 // This method must return MatchOperand_NoMatch without consuming any tokens
3931 // in the case where there is no match, as other alternatives take other
3933 AsmToken Tok = Parser.getTok();
3934 SMLoc S = Tok.getLoc();
3935 bool haveEaten = false;
3937 if (Tok.is(AsmToken::Plus)) {
3938 Parser.Lex(); // Eat the '+' token.
3940 } else if (Tok.is(AsmToken::Minus)) {
3941 Parser.Lex(); // Eat the '-' token.
3946 SMLoc E = Parser.getTok().getEndLoc();
3947 int Reg = tryParseRegister();
3950 return MatchOperand_NoMatch;
3951 Error(Parser.getTok().getLoc(), "register expected");
3952 return MatchOperand_ParseFail;
3955 ARM_AM::ShiftOpc ShiftTy = ARM_AM::no_shift;
3956 unsigned ShiftImm = 0;
3957 if (Parser.getTok().is(AsmToken::Comma)) {
3958 Parser.Lex(); // Eat the ','.
3959 if (parseMemRegOffsetShift(ShiftTy, ShiftImm))
3960 return MatchOperand_ParseFail;
3962 // FIXME: Only approximates end...may include intervening whitespace.
3963 E = Parser.getTok().getLoc();
3966 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ShiftTy,
3969 return MatchOperand_Success;
3972 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3973 parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3974 // Check for a post-index addressing register operand. Specifically:
3975 // am3offset := '+' register
3982 // This method must return MatchOperand_NoMatch without consuming any tokens
3983 // in the case where there is no match, as other alternatives take other
3985 AsmToken Tok = Parser.getTok();
3986 SMLoc S = Tok.getLoc();
3988 // Do immediates first, as we always parse those if we have a '#'.
3989 if (Parser.getTok().is(AsmToken::Hash) ||
3990 Parser.getTok().is(AsmToken::Dollar)) {
3991 Parser.Lex(); // Eat '#' or '$'.
3992 // Explicitly look for a '-', as we need to encode negative zero
3994 bool isNegative = Parser.getTok().is(AsmToken::Minus);
3995 const MCExpr *Offset;
3997 if (getParser().parseExpression(Offset, E))
3998 return MatchOperand_ParseFail;
3999 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4001 Error(S, "constant expression expected");
4002 return MatchOperand_ParseFail;
4004 // Negative zero is encoded as the flag value INT32_MIN.
4005 int32_t Val = CE->getValue();
4006 if (isNegative && Val == 0)
4010 ARMOperand::CreateImm(MCConstantExpr::Create(Val, getContext()), S, E));
4012 return MatchOperand_Success;
4016 bool haveEaten = false;
4018 if (Tok.is(AsmToken::Plus)) {
4019 Parser.Lex(); // Eat the '+' token.
4021 } else if (Tok.is(AsmToken::Minus)) {
4022 Parser.Lex(); // Eat the '-' token.
4027 Tok = Parser.getTok();
4028 int Reg = tryParseRegister();
4031 return MatchOperand_NoMatch;
4032 Error(Tok.getLoc(), "register expected");
4033 return MatchOperand_ParseFail;
4036 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ARM_AM::no_shift,
4037 0, S, Tok.getEndLoc()));
4039 return MatchOperand_Success;
4042 /// cvtT2LdrdPre - Convert parsed operands to MCInst.
4043 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4044 /// when they refer multiple MIOperands inside a single one.
4046 cvtT2LdrdPre(MCInst &Inst,
4047 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4049 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4050 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4051 // Create a writeback register dummy placeholder.
4052 Inst.addOperand(MCOperand::CreateReg(0));
4054 ((ARMOperand*)Operands[4])->addMemImm8s4OffsetOperands(Inst, 2);
4056 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4059 /// cvtT2StrdPre - Convert parsed operands to MCInst.
4060 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4061 /// when they refer multiple MIOperands inside a single one.
4063 cvtT2StrdPre(MCInst &Inst,
4064 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4065 // Create a writeback register dummy placeholder.
4066 Inst.addOperand(MCOperand::CreateReg(0));
4068 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4069 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4071 ((ARMOperand*)Operands[4])->addMemImm8s4OffsetOperands(Inst, 2);
4073 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4076 /// cvtLdWriteBackRegT2AddrModeImm8 - Convert parsed operands to MCInst.
4077 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4078 /// when they refer multiple MIOperands inside a single one.
4080 cvtLdWriteBackRegT2AddrModeImm8(MCInst &Inst,
4081 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4082 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4084 // Create a writeback register dummy placeholder.
4085 Inst.addOperand(MCOperand::CreateImm(0));
4087 ((ARMOperand*)Operands[3])->addMemImm8OffsetOperands(Inst, 2);
4088 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4091 /// cvtStWriteBackRegT2AddrModeImm8 - Convert parsed operands to MCInst.
4092 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4093 /// when they refer multiple MIOperands inside a single one.
4095 cvtStWriteBackRegT2AddrModeImm8(MCInst &Inst,
4096 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4097 // Create a writeback register dummy placeholder.
4098 Inst.addOperand(MCOperand::CreateImm(0));
4099 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4100 ((ARMOperand*)Operands[3])->addMemImm8OffsetOperands(Inst, 2);
4101 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4104 /// cvtLdWriteBackRegAddrMode2 - Convert parsed operands to MCInst.
4105 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4106 /// when they refer multiple MIOperands inside a single one.
4108 cvtLdWriteBackRegAddrMode2(MCInst &Inst,
4109 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4110 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4112 // Create a writeback register dummy placeholder.
4113 Inst.addOperand(MCOperand::CreateImm(0));
4115 ((ARMOperand*)Operands[3])->addAddrMode2Operands(Inst, 3);
4116 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4119 /// cvtLdWriteBackRegAddrModeImm12 - Convert parsed operands to MCInst.
4120 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4121 /// when they refer multiple MIOperands inside a single one.
4123 cvtLdWriteBackRegAddrModeImm12(MCInst &Inst,
4124 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4125 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4127 // Create a writeback register dummy placeholder.
4128 Inst.addOperand(MCOperand::CreateImm(0));
4130 ((ARMOperand*)Operands[3])->addMemImm12OffsetOperands(Inst, 2);
4131 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4135 /// cvtStWriteBackRegAddrModeImm12 - Convert parsed operands to MCInst.
4136 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4137 /// when they refer multiple MIOperands inside a single one.
4139 cvtStWriteBackRegAddrModeImm12(MCInst &Inst,
4140 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4141 // Create a writeback register dummy placeholder.
4142 Inst.addOperand(MCOperand::CreateImm(0));
4143 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4144 ((ARMOperand*)Operands[3])->addMemImm12OffsetOperands(Inst, 2);
4145 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4148 /// cvtStWriteBackRegAddrMode2 - Convert parsed operands to MCInst.
4149 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4150 /// when they refer multiple MIOperands inside a single one.
4152 cvtStWriteBackRegAddrMode2(MCInst &Inst,
4153 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4154 // Create a writeback register dummy placeholder.
4155 Inst.addOperand(MCOperand::CreateImm(0));
4156 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4157 ((ARMOperand*)Operands[3])->addAddrMode2Operands(Inst, 3);
4158 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4161 /// cvtStWriteBackRegAddrMode3 - Convert parsed operands to MCInst.
4162 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4163 /// when they refer multiple MIOperands inside a single one.
4165 cvtStWriteBackRegAddrMode3(MCInst &Inst,
4166 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4167 // Create a writeback register dummy placeholder.
4168 Inst.addOperand(MCOperand::CreateImm(0));
4169 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4170 ((ARMOperand*)Operands[3])->addAddrMode3Operands(Inst, 3);
4171 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4174 /// cvtLdExtTWriteBackImm - Convert parsed operands to MCInst.
4175 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4176 /// when they refer multiple MIOperands inside a single one.
4178 cvtLdExtTWriteBackImm(MCInst &Inst,
4179 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4181 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4182 // Create a writeback register dummy placeholder.
4183 Inst.addOperand(MCOperand::CreateImm(0));
4185 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
4187 ((ARMOperand*)Operands[4])->addPostIdxImm8Operands(Inst, 1);
4189 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4192 /// cvtLdExtTWriteBackReg - Convert parsed operands to MCInst.
4193 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4194 /// when they refer multiple MIOperands inside a single one.
4196 cvtLdExtTWriteBackReg(MCInst &Inst,
4197 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4199 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4200 // Create a writeback register dummy placeholder.
4201 Inst.addOperand(MCOperand::CreateImm(0));
4203 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
4205 ((ARMOperand*)Operands[4])->addPostIdxRegOperands(Inst, 2);
4207 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4210 /// cvtStExtTWriteBackImm - Convert parsed operands to MCInst.
4211 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4212 /// when they refer multiple MIOperands inside a single one.
4214 cvtStExtTWriteBackImm(MCInst &Inst,
4215 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4216 // Create a writeback register dummy placeholder.
4217 Inst.addOperand(MCOperand::CreateImm(0));
4219 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4221 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
4223 ((ARMOperand*)Operands[4])->addPostIdxImm8Operands(Inst, 1);
4225 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4228 /// cvtStExtTWriteBackReg - Convert parsed operands to MCInst.
4229 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4230 /// when they refer multiple MIOperands inside a single one.
4232 cvtStExtTWriteBackReg(MCInst &Inst,
4233 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4234 // Create a writeback register dummy placeholder.
4235 Inst.addOperand(MCOperand::CreateImm(0));
4237 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4239 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
4241 ((ARMOperand*)Operands[4])->addPostIdxRegOperands(Inst, 2);
4243 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4246 /// cvtLdrdPre - Convert parsed operands to MCInst.
4247 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4248 /// when they refer multiple MIOperands inside a single one.
4250 cvtLdrdPre(MCInst &Inst,
4251 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4253 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4254 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4255 // Create a writeback register dummy placeholder.
4256 Inst.addOperand(MCOperand::CreateImm(0));
4258 ((ARMOperand*)Operands[4])->addAddrMode3Operands(Inst, 3);
4260 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4263 /// cvtStrdPre - Convert parsed operands to MCInst.
4264 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4265 /// when they refer multiple MIOperands inside a single one.
4267 cvtStrdPre(MCInst &Inst,
4268 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4269 // Create a writeback register dummy placeholder.
4270 Inst.addOperand(MCOperand::CreateImm(0));
4272 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4273 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4275 ((ARMOperand*)Operands[4])->addAddrMode3Operands(Inst, 3);
4277 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4280 /// cvtLdWriteBackRegAddrMode3 - Convert parsed operands to MCInst.
4281 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4282 /// when they refer multiple MIOperands inside a single one.
4284 cvtLdWriteBackRegAddrMode3(MCInst &Inst,
4285 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4286 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4287 // Create a writeback register dummy placeholder.
4288 Inst.addOperand(MCOperand::CreateImm(0));
4289 ((ARMOperand*)Operands[3])->addAddrMode3Operands(Inst, 3);
4290 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4293 /// cvtThumbMultiply - Convert parsed operands to MCInst.
4294 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4295 /// when they refer multiple MIOperands inside a single one.
4297 cvtThumbMultiply(MCInst &Inst,
4298 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4299 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4300 ((ARMOperand*)Operands[1])->addCCOutOperands(Inst, 1);
4301 // If we have a three-operand form, make sure to set Rn to be the operand
4302 // that isn't the same as Rd.
4304 if (Operands.size() == 6 &&
4305 ((ARMOperand*)Operands[4])->getReg() ==
4306 ((ARMOperand*)Operands[3])->getReg())
4308 ((ARMOperand*)Operands[RegOp])->addRegOperands(Inst, 1);
4309 Inst.addOperand(Inst.getOperand(0));
4310 ((ARMOperand*)Operands[2])->addCondCodeOperands(Inst, 2);
4314 cvtVLDwbFixed(MCInst &Inst,
4315 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4317 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4318 // Create a writeback register dummy placeholder.
4319 Inst.addOperand(MCOperand::CreateImm(0));
4321 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4323 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4327 cvtVLDwbRegister(MCInst &Inst,
4328 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4330 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4331 // Create a writeback register dummy placeholder.
4332 Inst.addOperand(MCOperand::CreateImm(0));
4334 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4336 ((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
4338 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4342 cvtVSTwbFixed(MCInst &Inst,
4343 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4344 // Create a writeback register dummy placeholder.
4345 Inst.addOperand(MCOperand::CreateImm(0));
4347 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4349 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4351 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4355 cvtVSTwbRegister(MCInst &Inst,
4356 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4357 // Create a writeback register dummy placeholder.
4358 Inst.addOperand(MCOperand::CreateImm(0));
4360 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4362 ((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
4364 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4366 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4369 /// Parse an ARM memory expression, return false if successful else return true
4370 /// or an error. The first token must be a '[' when called.
4372 parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4374 assert(Parser.getTok().is(AsmToken::LBrac) &&
4375 "Token is not a Left Bracket");
4376 S = Parser.getTok().getLoc();
4377 Parser.Lex(); // Eat left bracket token.
4379 const AsmToken &BaseRegTok = Parser.getTok();
4380 int BaseRegNum = tryParseRegister();
4381 if (BaseRegNum == -1)
4382 return Error(BaseRegTok.getLoc(), "register expected");
4384 // The next token must either be a comma, a colon or a closing bracket.
4385 const AsmToken &Tok = Parser.getTok();
4386 if (!Tok.is(AsmToken::Colon) && !Tok.is(AsmToken::Comma) &&
4387 !Tok.is(AsmToken::RBrac))
4388 return Error(Tok.getLoc(), "malformed memory operand");
4390 if (Tok.is(AsmToken::RBrac)) {
4391 E = Tok.getEndLoc();
4392 Parser.Lex(); // Eat right bracket token.
4394 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0, ARM_AM::no_shift,
4395 0, 0, false, S, E));
4397 // If there's a pre-indexing writeback marker, '!', just add it as a token
4398 // operand. It's rather odd, but syntactically valid.
4399 if (Parser.getTok().is(AsmToken::Exclaim)) {
4400 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4401 Parser.Lex(); // Eat the '!'.
4407 assert((Tok.is(AsmToken::Colon) || Tok.is(AsmToken::Comma)) &&
4408 "Lost colon or comma in memory operand?!");
4409 if (Tok.is(AsmToken::Comma)) {
4410 Parser.Lex(); // Eat the comma.
4413 // If we have a ':', it's an alignment specifier.
4414 if (Parser.getTok().is(AsmToken::Colon)) {
4415 Parser.Lex(); // Eat the ':'.
4416 E = Parser.getTok().getLoc();
4419 if (getParser().parseExpression(Expr))
4422 // The expression has to be a constant. Memory references with relocations
4423 // don't come through here, as they use the <label> forms of the relevant
4425 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4427 return Error (E, "constant expression expected");
4430 switch (CE->getValue()) {
4433 "alignment specifier must be 16, 32, 64, 128, or 256 bits");
4434 case 16: Align = 2; break;
4435 case 32: Align = 4; break;
4436 case 64: Align = 8; break;
4437 case 128: Align = 16; break;
4438 case 256: Align = 32; break;
4441 // Now we should have the closing ']'
4442 if (Parser.getTok().isNot(AsmToken::RBrac))
4443 return Error(Parser.getTok().getLoc(), "']' expected");
4444 E = Parser.getTok().getEndLoc();
4445 Parser.Lex(); // Eat right bracket token.
4447 // Don't worry about range checking the value here. That's handled by
4448 // the is*() predicates.
4449 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0,
4450 ARM_AM::no_shift, 0, Align,
4453 // If there's a pre-indexing writeback marker, '!', just add it as a token
4455 if (Parser.getTok().is(AsmToken::Exclaim)) {
4456 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4457 Parser.Lex(); // Eat the '!'.
4463 // If we have a '#', it's an immediate offset, else assume it's a register
4464 // offset. Be friendly and also accept a plain integer (without a leading
4465 // hash) for gas compatibility.
4466 if (Parser.getTok().is(AsmToken::Hash) ||
4467 Parser.getTok().is(AsmToken::Dollar) ||
4468 Parser.getTok().is(AsmToken::Integer)) {
4469 if (Parser.getTok().isNot(AsmToken::Integer))
4470 Parser.Lex(); // Eat '#' or '$'.
4471 E = Parser.getTok().getLoc();
4473 bool isNegative = getParser().getTok().is(AsmToken::Minus);
4474 const MCExpr *Offset;
4475 if (getParser().parseExpression(Offset))
4478 // The expression has to be a constant. Memory references with relocations
4479 // don't come through here, as they use the <label> forms of the relevant
4481 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4483 return Error (E, "constant expression expected");
4485 // If the constant was #-0, represent it as INT32_MIN.
4486 int32_t Val = CE->getValue();
4487 if (isNegative && Val == 0)
4488 CE = MCConstantExpr::Create(INT32_MIN, getContext());
4490 // Now we should have the closing ']'
4491 if (Parser.getTok().isNot(AsmToken::RBrac))
4492 return Error(Parser.getTok().getLoc(), "']' expected");
4493 E = Parser.getTok().getEndLoc();
4494 Parser.Lex(); // Eat right bracket token.
4496 // Don't worry about range checking the value here. That's handled by
4497 // the is*() predicates.
4498 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, CE, 0,
4499 ARM_AM::no_shift, 0, 0,
4502 // If there's a pre-indexing writeback marker, '!', just add it as a token
4504 if (Parser.getTok().is(AsmToken::Exclaim)) {
4505 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4506 Parser.Lex(); // Eat the '!'.
4512 // The register offset is optionally preceded by a '+' or '-'
4513 bool isNegative = false;
4514 if (Parser.getTok().is(AsmToken::Minus)) {
4516 Parser.Lex(); // Eat the '-'.
4517 } else if (Parser.getTok().is(AsmToken::Plus)) {
4519 Parser.Lex(); // Eat the '+'.
4522 E = Parser.getTok().getLoc();
4523 int OffsetRegNum = tryParseRegister();
4524 if (OffsetRegNum == -1)
4525 return Error(E, "register expected");
4527 // If there's a shift operator, handle it.
4528 ARM_AM::ShiftOpc ShiftType = ARM_AM::no_shift;
4529 unsigned ShiftImm = 0;
4530 if (Parser.getTok().is(AsmToken::Comma)) {
4531 Parser.Lex(); // Eat the ','.
4532 if (parseMemRegOffsetShift(ShiftType, ShiftImm))
4536 // Now we should have the closing ']'
4537 if (Parser.getTok().isNot(AsmToken::RBrac))
4538 return Error(Parser.getTok().getLoc(), "']' expected");
4539 E = Parser.getTok().getEndLoc();
4540 Parser.Lex(); // Eat right bracket token.
4542 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, OffsetRegNum,
4543 ShiftType, ShiftImm, 0, isNegative,
4546 // If there's a pre-indexing writeback marker, '!', just add it as a token
4548 if (Parser.getTok().is(AsmToken::Exclaim)) {
4549 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4550 Parser.Lex(); // Eat the '!'.
4556 /// parseMemRegOffsetShift - one of these two:
4557 /// ( lsl | lsr | asr | ror ) , # shift_amount
4559 /// return true if it parses a shift otherwise it returns false.
4560 bool ARMAsmParser::parseMemRegOffsetShift(ARM_AM::ShiftOpc &St,
4562 SMLoc Loc = Parser.getTok().getLoc();
4563 const AsmToken &Tok = Parser.getTok();
4564 if (Tok.isNot(AsmToken::Identifier))
4566 StringRef ShiftName = Tok.getString();
4567 if (ShiftName == "lsl" || ShiftName == "LSL" ||
4568 ShiftName == "asl" || ShiftName == "ASL")
4570 else if (ShiftName == "lsr" || ShiftName == "LSR")
4572 else if (ShiftName == "asr" || ShiftName == "ASR")
4574 else if (ShiftName == "ror" || ShiftName == "ROR")
4576 else if (ShiftName == "rrx" || ShiftName == "RRX")
4579 return Error(Loc, "illegal shift operator");
4580 Parser.Lex(); // Eat shift type token.
4582 // rrx stands alone.
4584 if (St != ARM_AM::rrx) {
4585 Loc = Parser.getTok().getLoc();
4586 // A '#' and a shift amount.
4587 const AsmToken &HashTok = Parser.getTok();
4588 if (HashTok.isNot(AsmToken::Hash) &&
4589 HashTok.isNot(AsmToken::Dollar))
4590 return Error(HashTok.getLoc(), "'#' expected");
4591 Parser.Lex(); // Eat hash token.
4594 if (getParser().parseExpression(Expr))
4596 // Range check the immediate.
4597 // lsl, ror: 0 <= imm <= 31
4598 // lsr, asr: 0 <= imm <= 32
4599 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4601 return Error(Loc, "shift amount must be an immediate");
4602 int64_t Imm = CE->getValue();
4604 ((St == ARM_AM::lsl || St == ARM_AM::ror) && Imm > 31) ||
4605 ((St == ARM_AM::lsr || St == ARM_AM::asr) && Imm > 32))
4606 return Error(Loc, "immediate shift value out of range");
4607 // If <ShiftTy> #0, turn it into a no_shift.
4610 // For consistency, treat lsr #32 and asr #32 as having immediate value 0.
4619 /// parseFPImm - A floating point immediate expression operand.
4620 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4621 parseFPImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4622 // Anything that can accept a floating point constant as an operand
4623 // needs to go through here, as the regular parseExpression is
4626 // This routine still creates a generic Immediate operand, containing
4627 // a bitcast of the 64-bit floating point value. The various operands
4628 // that accept floats can check whether the value is valid for them
4629 // via the standard is*() predicates.
4631 SMLoc S = Parser.getTok().getLoc();
4633 if (Parser.getTok().isNot(AsmToken::Hash) &&
4634 Parser.getTok().isNot(AsmToken::Dollar))
4635 return MatchOperand_NoMatch;
4637 // Disambiguate the VMOV forms that can accept an FP immediate.
4638 // vmov.f32 <sreg>, #imm
4639 // vmov.f64 <dreg>, #imm
4640 // vmov.f32 <dreg>, #imm @ vector f32x2
4641 // vmov.f32 <qreg>, #imm @ vector f32x4
4643 // There are also the NEON VMOV instructions which expect an
4644 // integer constant. Make sure we don't try to parse an FPImm
4646 // vmov.i{8|16|32|64} <dreg|qreg>, #imm
4647 ARMOperand *TyOp = static_cast<ARMOperand*>(Operands[2]);
4648 if (!TyOp->isToken() || (TyOp->getToken() != ".f32" &&
4649 TyOp->getToken() != ".f64"))
4650 return MatchOperand_NoMatch;
4652 Parser.Lex(); // Eat '#' or '$'.
4654 // Handle negation, as that still comes through as a separate token.
4655 bool isNegative = false;
4656 if (Parser.getTok().is(AsmToken::Minus)) {
4660 const AsmToken &Tok = Parser.getTok();
4661 SMLoc Loc = Tok.getLoc();
4662 if (Tok.is(AsmToken::Real)) {
4663 APFloat RealVal(APFloat::IEEEsingle, Tok.getString());
4664 uint64_t IntVal = RealVal.bitcastToAPInt().getZExtValue();
4665 // If we had a '-' in front, toggle the sign bit.
4666 IntVal ^= (uint64_t)isNegative << 31;
4667 Parser.Lex(); // Eat the token.
4668 Operands.push_back(ARMOperand::CreateImm(
4669 MCConstantExpr::Create(IntVal, getContext()),
4670 S, Parser.getTok().getLoc()));
4671 return MatchOperand_Success;
4673 // Also handle plain integers. Instructions which allow floating point
4674 // immediates also allow a raw encoded 8-bit value.
4675 if (Tok.is(AsmToken::Integer)) {
4676 int64_t Val = Tok.getIntVal();
4677 Parser.Lex(); // Eat the token.
4678 if (Val > 255 || Val < 0) {
4679 Error(Loc, "encoded floating point value out of range");
4680 return MatchOperand_ParseFail;
4682 double RealVal = ARM_AM::getFPImmFloat(Val);
4683 Val = APFloat(APFloat::IEEEdouble, RealVal).bitcastToAPInt().getZExtValue();
4684 Operands.push_back(ARMOperand::CreateImm(
4685 MCConstantExpr::Create(Val, getContext()), S,
4686 Parser.getTok().getLoc()));
4687 return MatchOperand_Success;
4690 Error(Loc, "invalid floating point immediate");
4691 return MatchOperand_ParseFail;
4694 /// Parse a arm instruction operand. For now this parses the operand regardless
4695 /// of the mnemonic.
4696 bool ARMAsmParser::parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
4697 StringRef Mnemonic) {
4700 // Check if the current operand has a custom associated parser, if so, try to
4701 // custom parse the operand, or fallback to the general approach.
4702 OperandMatchResultTy ResTy = MatchOperandParserImpl(Operands, Mnemonic);
4703 if (ResTy == MatchOperand_Success)
4705 // If there wasn't a custom match, try the generic matcher below. Otherwise,
4706 // there was a match, but an error occurred, in which case, just return that
4707 // the operand parsing failed.
4708 if (ResTy == MatchOperand_ParseFail)
4711 switch (getLexer().getKind()) {
4713 Error(Parser.getTok().getLoc(), "unexpected token in operand");
4715 case AsmToken::Identifier: {
4716 // If we've seen a branch mnemonic, the next operand must be a label. This
4717 // is true even if the label is a register name. So "br r1" means branch to
4719 bool ExpectLabel = Mnemonic == "b" || Mnemonic == "bl";
4721 if (!tryParseRegisterWithWriteBack(Operands))
4723 int Res = tryParseShiftRegister(Operands);
4724 if (Res == 0) // success
4726 else if (Res == -1) // irrecoverable error
4728 // If this is VMRS, check for the apsr_nzcv operand.
4729 if (Mnemonic == "vmrs" &&
4730 Parser.getTok().getString().equals_lower("apsr_nzcv")) {
4731 S = Parser.getTok().getLoc();
4733 Operands.push_back(ARMOperand::CreateToken("APSR_nzcv", S));
4738 // Fall though for the Identifier case that is not a register or a
4741 case AsmToken::LParen: // parenthesized expressions like (_strcmp-4)
4742 case AsmToken::Integer: // things like 1f and 2b as a branch targets
4743 case AsmToken::String: // quoted label names.
4744 case AsmToken::Dot: { // . as a branch target
4745 // This was not a register so parse other operands that start with an
4746 // identifier (like labels) as expressions and create them as immediates.
4747 const MCExpr *IdVal;
4748 S = Parser.getTok().getLoc();
4749 if (getParser().parseExpression(IdVal))
4751 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4752 Operands.push_back(ARMOperand::CreateImm(IdVal, S, E));
4755 case AsmToken::LBrac:
4756 return parseMemory(Operands);
4757 case AsmToken::LCurly:
4758 return parseRegisterList(Operands);
4759 case AsmToken::Dollar:
4760 case AsmToken::Hash: {
4761 // #42 -> immediate.
4762 S = Parser.getTok().getLoc();
4765 if (Parser.getTok().isNot(AsmToken::Colon)) {
4766 bool isNegative = Parser.getTok().is(AsmToken::Minus);
4767 const MCExpr *ImmVal;
4768 if (getParser().parseExpression(ImmVal))
4770 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ImmVal);
4772 int32_t Val = CE->getValue();
4773 if (isNegative && Val == 0)
4774 ImmVal = MCConstantExpr::Create(INT32_MIN, getContext());
4776 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4777 Operands.push_back(ARMOperand::CreateImm(ImmVal, S, E));
4779 // There can be a trailing '!' on operands that we want as a separate
4780 // '!' Token operand. Handle that here. For example, the compatibilty
4781 // alias for 'srsdb sp!, #imm' is 'srsdb #imm!'.
4782 if (Parser.getTok().is(AsmToken::Exclaim)) {
4783 Operands.push_back(ARMOperand::CreateToken(Parser.getTok().getString(),
4784 Parser.getTok().getLoc()));
4785 Parser.Lex(); // Eat exclaim token
4789 // w/ a ':' after the '#', it's just like a plain ':'.
4792 case AsmToken::Colon: {
4793 // ":lower16:" and ":upper16:" expression prefixes
4794 // FIXME: Check it's an expression prefix,
4795 // e.g. (FOO - :lower16:BAR) isn't legal.
4796 ARMMCExpr::VariantKind RefKind;
4797 if (parsePrefix(RefKind))
4800 const MCExpr *SubExprVal;
4801 if (getParser().parseExpression(SubExprVal))
4804 const MCExpr *ExprVal = ARMMCExpr::Create(RefKind, SubExprVal,
4806 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4807 Operands.push_back(ARMOperand::CreateImm(ExprVal, S, E));
4813 // parsePrefix - Parse ARM 16-bit relocations expression prefix, i.e.
4814 // :lower16: and :upper16:.
4815 bool ARMAsmParser::parsePrefix(ARMMCExpr::VariantKind &RefKind) {
4816 RefKind = ARMMCExpr::VK_ARM_None;
4818 // :lower16: and :upper16: modifiers
4819 assert(getLexer().is(AsmToken::Colon) && "expected a :");
4820 Parser.Lex(); // Eat ':'
4822 if (getLexer().isNot(AsmToken::Identifier)) {
4823 Error(Parser.getTok().getLoc(), "expected prefix identifier in operand");
4827 StringRef IDVal = Parser.getTok().getIdentifier();
4828 if (IDVal == "lower16") {
4829 RefKind = ARMMCExpr::VK_ARM_LO16;
4830 } else if (IDVal == "upper16") {
4831 RefKind = ARMMCExpr::VK_ARM_HI16;
4833 Error(Parser.getTok().getLoc(), "unexpected prefix in operand");
4838 if (getLexer().isNot(AsmToken::Colon)) {
4839 Error(Parser.getTok().getLoc(), "unexpected token after prefix");
4842 Parser.Lex(); // Eat the last ':'
4846 /// \brief Given a mnemonic, split out possible predication code and carry
4847 /// setting letters to form a canonical mnemonic and flags.
4849 // FIXME: Would be nice to autogen this.
4850 // FIXME: This is a bit of a maze of special cases.
4851 StringRef ARMAsmParser::splitMnemonic(StringRef Mnemonic,
4852 unsigned &PredicationCode,
4854 unsigned &ProcessorIMod,
4855 StringRef &ITMask) {
4856 PredicationCode = ARMCC::AL;
4857 CarrySetting = false;
4860 // Ignore some mnemonics we know aren't predicated forms.
4862 // FIXME: Would be nice to autogen this.
4863 if ((Mnemonic == "movs" && isThumb()) ||
4864 Mnemonic == "teq" || Mnemonic == "vceq" || Mnemonic == "svc" ||
4865 Mnemonic == "mls" || Mnemonic == "smmls" || Mnemonic == "vcls" ||
4866 Mnemonic == "vmls" || Mnemonic == "vnmls" || Mnemonic == "vacge" ||
4867 Mnemonic == "vcge" || Mnemonic == "vclt" || Mnemonic == "vacgt" ||
4868 Mnemonic == "vaclt" || Mnemonic == "vacle" ||
4869 Mnemonic == "vcgt" || Mnemonic == "vcle" || Mnemonic == "smlal" ||
4870 Mnemonic == "umaal" || Mnemonic == "umlal" || Mnemonic == "vabal" ||
4871 Mnemonic == "vmlal" || Mnemonic == "vpadal" || Mnemonic == "vqdmlal" ||
4872 Mnemonic == "fmuls")
4875 // First, split out any predication code. Ignore mnemonics we know aren't
4876 // predicated but do have a carry-set and so weren't caught above.
4877 if (Mnemonic != "adcs" && Mnemonic != "bics" && Mnemonic != "movs" &&
4878 Mnemonic != "muls" && Mnemonic != "smlals" && Mnemonic != "smulls" &&
4879 Mnemonic != "umlals" && Mnemonic != "umulls" && Mnemonic != "lsls" &&
4880 Mnemonic != "sbcs" && Mnemonic != "rscs") {
4881 unsigned CC = StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2))
4882 .Case("eq", ARMCC::EQ)
4883 .Case("ne", ARMCC::NE)
4884 .Case("hs", ARMCC::HS)
4885 .Case("cs", ARMCC::HS)
4886 .Case("lo", ARMCC::LO)
4887 .Case("cc", ARMCC::LO)
4888 .Case("mi", ARMCC::MI)
4889 .Case("pl", ARMCC::PL)
4890 .Case("vs", ARMCC::VS)
4891 .Case("vc", ARMCC::VC)
4892 .Case("hi", ARMCC::HI)
4893 .Case("ls", ARMCC::LS)
4894 .Case("ge", ARMCC::GE)
4895 .Case("lt", ARMCC::LT)
4896 .Case("gt", ARMCC::GT)
4897 .Case("le", ARMCC::LE)
4898 .Case("al", ARMCC::AL)
4901 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 2);
4902 PredicationCode = CC;
4906 // Next, determine if we have a carry setting bit. We explicitly ignore all
4907 // the instructions we know end in 's'.
4908 if (Mnemonic.endswith("s") &&
4909 !(Mnemonic == "cps" || Mnemonic == "mls" ||
4910 Mnemonic == "mrs" || Mnemonic == "smmls" || Mnemonic == "vabs" ||
4911 Mnemonic == "vcls" || Mnemonic == "vmls" || Mnemonic == "vmrs" ||
4912 Mnemonic == "vnmls" || Mnemonic == "vqabs" || Mnemonic == "vrecps" ||
4913 Mnemonic == "vrsqrts" || Mnemonic == "srs" || Mnemonic == "flds" ||
4914 Mnemonic == "fmrs" || Mnemonic == "fsqrts" || Mnemonic == "fsubs" ||
4915 Mnemonic == "fsts" || Mnemonic == "fcpys" || Mnemonic == "fdivs" ||
4916 Mnemonic == "fmuls" || Mnemonic == "fcmps" || Mnemonic == "fcmpzs" ||
4917 Mnemonic == "vfms" || Mnemonic == "vfnms" ||
4918 (Mnemonic == "movs" && isThumb()))) {
4919 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1);
4920 CarrySetting = true;
4923 // The "cps" instruction can have a interrupt mode operand which is glued into
4924 // the mnemonic. Check if this is the case, split it and parse the imod op
4925 if (Mnemonic.startswith("cps")) {
4926 // Split out any imod code.
4928 StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2, 2))
4929 .Case("ie", ARM_PROC::IE)
4930 .Case("id", ARM_PROC::ID)
4933 Mnemonic = Mnemonic.slice(0, Mnemonic.size()-2);
4934 ProcessorIMod = IMod;
4938 // The "it" instruction has the condition mask on the end of the mnemonic.
4939 if (Mnemonic.startswith("it")) {
4940 ITMask = Mnemonic.slice(2, Mnemonic.size());
4941 Mnemonic = Mnemonic.slice(0, 2);
4947 /// \brief Given a canonical mnemonic, determine if the instruction ever allows
4948 /// inclusion of carry set or predication code operands.
4950 // FIXME: It would be nice to autogen this.
4952 getMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
4953 bool &CanAcceptPredicationCode) {
4954 if (Mnemonic == "and" || Mnemonic == "lsl" || Mnemonic == "lsr" ||
4955 Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" ||
4956 Mnemonic == "add" || Mnemonic == "adc" ||
4957 Mnemonic == "mul" || Mnemonic == "bic" || Mnemonic == "asr" ||
4958 Mnemonic == "orr" || Mnemonic == "mvn" ||
4959 Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
4960 Mnemonic == "sbc" || Mnemonic == "eor" || Mnemonic == "neg" ||
4961 Mnemonic == "vfm" || Mnemonic == "vfnm" ||
4962 (!isThumb() && (Mnemonic == "smull" || Mnemonic == "mov" ||
4963 Mnemonic == "mla" || Mnemonic == "smlal" ||
4964 Mnemonic == "umlal" || Mnemonic == "umull"))) {
4965 CanAcceptCarrySet = true;
4967 CanAcceptCarrySet = false;
4969 if (Mnemonic == "cbnz" || Mnemonic == "setend" || Mnemonic == "cps" ||
4970 Mnemonic == "mcr2" || Mnemonic == "it" || Mnemonic == "mcrr2" ||
4971 Mnemonic == "cbz" || Mnemonic == "cdp2" || Mnemonic == "trap" ||
4972 Mnemonic == "mrc2" || Mnemonic == "mrrc2" || Mnemonic == "setend" ||
4973 ((Mnemonic == "clrex" || Mnemonic == "dmb" || Mnemonic == "dsb" ||
4974 Mnemonic == "isb") && !isThumb()) ||
4975 (Mnemonic == "nop" && isThumbOne()) ||
4976 ((Mnemonic == "pld" || Mnemonic == "pli" || Mnemonic == "pldw" ||
4977 Mnemonic == "ldc2" || Mnemonic == "ldc2l" ||
4978 Mnemonic == "stc2" || Mnemonic == "stc2l") && !isThumb()) ||
4979 ((Mnemonic.startswith("rfe") || Mnemonic.startswith("srs")) &&
4981 Mnemonic.startswith("cps") || (Mnemonic == "movs" && isThumbOne())) {
4982 CanAcceptPredicationCode = false;
4984 CanAcceptPredicationCode = true;
4987 if (Mnemonic == "bkpt" || Mnemonic == "mcr" || Mnemonic == "mcrr" ||
4988 Mnemonic == "mrc" || Mnemonic == "mrrc" || Mnemonic == "cdp")
4989 CanAcceptPredicationCode = false;
4993 bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
4994 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4995 // FIXME: This is all horribly hacky. We really need a better way to deal
4996 // with optional operands like this in the matcher table.
4998 // The 'mov' mnemonic is special. One variant has a cc_out operand, while
4999 // another does not. Specifically, the MOVW instruction does not. So we
5000 // special case it here and remove the defaulted (non-setting) cc_out
5001 // operand if that's the instruction we're trying to match.
5003 // We do this as post-processing of the explicit operands rather than just
5004 // conditionally adding the cc_out in the first place because we need
5005 // to check the type of the parsed immediate operand.
5006 if (Mnemonic == "mov" && Operands.size() > 4 && !isThumb() &&
5007 !static_cast<ARMOperand*>(Operands[4])->isARMSOImm() &&
5008 static_cast<ARMOperand*>(Operands[4])->isImm0_65535Expr() &&
5009 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
5012 // Register-register 'add' for thumb does not have a cc_out operand
5013 // when there are only two register operands.
5014 if (isThumb() && Mnemonic == "add" && Operands.size() == 5 &&
5015 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5016 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5017 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
5019 // Register-register 'add' for thumb does not have a cc_out operand
5020 // when it's an ADD Rdm, SP, {Rdm|#imm0_255} instruction. We do
5021 // have to check the immediate range here since Thumb2 has a variant
5022 // that can handle a different range and has a cc_out operand.
5023 if (((isThumb() && Mnemonic == "add") ||
5024 (isThumbTwo() && Mnemonic == "sub")) &&
5025 Operands.size() == 6 &&
5026 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5027 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5028 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::SP &&
5029 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5030 ((Mnemonic == "add" &&static_cast<ARMOperand*>(Operands[5])->isReg()) ||
5031 static_cast<ARMOperand*>(Operands[5])->isImm0_1020s4()))
5033 // For Thumb2, add/sub immediate does not have a cc_out operand for the
5034 // imm0_4095 variant. That's the least-preferred variant when
5035 // selecting via the generic "add" mnemonic, so to know that we
5036 // should remove the cc_out operand, we have to explicitly check that
5037 // it's not one of the other variants. Ugh.
5038 if (isThumbTwo() && (Mnemonic == "add" || Mnemonic == "sub") &&
5039 Operands.size() == 6 &&
5040 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5041 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5042 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5043 // Nest conditions rather than one big 'if' statement for readability.
5045 // If either register is a high reg, it's either one of the SP
5046 // variants (handled above) or a 32-bit encoding, so we just
5047 // check against T3. If the second register is the PC, this is an
5048 // alternate form of ADR, which uses encoding T4, so check for that too.
5049 if ((!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
5050 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg())) &&
5051 static_cast<ARMOperand*>(Operands[4])->getReg() != ARM::PC &&
5052 static_cast<ARMOperand*>(Operands[5])->isT2SOImm())
5054 // If both registers are low, we're in an IT block, and the immediate is
5055 // in range, we should use encoding T1 instead, which has a cc_out.
5057 isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
5058 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) &&
5059 static_cast<ARMOperand*>(Operands[5])->isImm0_7())
5062 // Otherwise, we use encoding T4, which does not have a cc_out
5067 // The thumb2 multiply instruction doesn't have a CCOut register, so
5068 // if we have a "mul" mnemonic in Thumb mode, check if we'll be able to
5069 // use the 16-bit encoding or not.
5070 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 6 &&
5071 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5072 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5073 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5074 static_cast<ARMOperand*>(Operands[5])->isReg() &&
5075 // If the registers aren't low regs, the destination reg isn't the
5076 // same as one of the source regs, or the cc_out operand is zero
5077 // outside of an IT block, we have to use the 32-bit encoding, so
5078 // remove the cc_out operand.
5079 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
5080 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
5081 !isARMLowRegister(static_cast<ARMOperand*>(Operands[5])->getReg()) ||
5083 (static_cast<ARMOperand*>(Operands[3])->getReg() !=
5084 static_cast<ARMOperand*>(Operands[5])->getReg() &&
5085 static_cast<ARMOperand*>(Operands[3])->getReg() !=
5086 static_cast<ARMOperand*>(Operands[4])->getReg())))
5089 // Also check the 'mul' syntax variant that doesn't specify an explicit
5090 // destination register.
5091 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 5 &&
5092 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5093 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5094 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5095 // If the registers aren't low regs or the cc_out operand is zero
5096 // outside of an IT block, we have to use the 32-bit encoding, so
5097 // remove the cc_out operand.
5098 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
5099 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
5105 // Register-register 'add/sub' for thumb does not have a cc_out operand
5106 // when it's an ADD/SUB SP, #imm. Be lenient on count since there's also
5107 // the "add/sub SP, SP, #imm" version. If the follow-up operands aren't
5108 // right, this will result in better diagnostics (which operand is off)
5110 if (isThumb() && (Mnemonic == "add" || Mnemonic == "sub") &&
5111 (Operands.size() == 5 || Operands.size() == 6) &&
5112 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5113 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::SP &&
5114 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
5115 (static_cast<ARMOperand*>(Operands[4])->isImm() ||
5116 (Operands.size() == 6 &&
5117 static_cast<ARMOperand*>(Operands[5])->isImm())))
5123 static bool isDataTypeToken(StringRef Tok) {
5124 return Tok == ".8" || Tok == ".16" || Tok == ".32" || Tok == ".64" ||
5125 Tok == ".i8" || Tok == ".i16" || Tok == ".i32" || Tok == ".i64" ||
5126 Tok == ".u8" || Tok == ".u16" || Tok == ".u32" || Tok == ".u64" ||
5127 Tok == ".s8" || Tok == ".s16" || Tok == ".s32" || Tok == ".s64" ||
5128 Tok == ".p8" || Tok == ".p16" || Tok == ".f32" || Tok == ".f64" ||
5129 Tok == ".f" || Tok == ".d";
5132 // FIXME: This bit should probably be handled via an explicit match class
5133 // in the .td files that matches the suffix instead of having it be
5134 // a literal string token the way it is now.
5135 static bool doesIgnoreDataTypeSuffix(StringRef Mnemonic, StringRef DT) {
5136 return Mnemonic.startswith("vldm") || Mnemonic.startswith("vstm");
5138 static void applyMnemonicAliases(StringRef &Mnemonic, unsigned Features,
5139 unsigned VariantID);
5140 /// Parse an arm instruction mnemonic followed by its operands.
5141 bool ARMAsmParser::ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
5143 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5144 // Apply mnemonic aliases before doing anything else, as the destination
5145 // mnemnonic may include suffices and we want to handle them normally.
5146 // The generic tblgen'erated code does this later, at the start of
5147 // MatchInstructionImpl(), but that's too late for aliases that include
5148 // any sort of suffix.
5149 unsigned AvailableFeatures = getAvailableFeatures();
5150 unsigned AssemblerDialect = getParser().getAssemblerDialect();
5151 applyMnemonicAliases(Name, AvailableFeatures, AssemblerDialect);
5153 // First check for the ARM-specific .req directive.
5154 if (Parser.getTok().is(AsmToken::Identifier) &&
5155 Parser.getTok().getIdentifier() == ".req") {
5156 parseDirectiveReq(Name, NameLoc);
5157 // We always return 'error' for this, as we're done with this
5158 // statement and don't need to match the 'instruction."
5162 // Create the leading tokens for the mnemonic, split by '.' characters.
5163 size_t Start = 0, Next = Name.find('.');
5164 StringRef Mnemonic = Name.slice(Start, Next);
5166 // Split out the predication code and carry setting flag from the mnemonic.
5167 unsigned PredicationCode;
5168 unsigned ProcessorIMod;
5171 Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
5172 ProcessorIMod, ITMask);
5174 // In Thumb1, only the branch (B) instruction can be predicated.
5175 if (isThumbOne() && PredicationCode != ARMCC::AL && Mnemonic != "b") {
5176 Parser.eatToEndOfStatement();
5177 return Error(NameLoc, "conditional execution not supported in Thumb1");
5180 Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
5182 // Handle the IT instruction ITMask. Convert it to a bitmask. This
5183 // is the mask as it will be for the IT encoding if the conditional
5184 // encoding has a '1' as it's bit0 (i.e. 't' ==> '1'). In the case
5185 // where the conditional bit0 is zero, the instruction post-processing
5186 // will adjust the mask accordingly.
5187 if (Mnemonic == "it") {
5188 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + 2);
5189 if (ITMask.size() > 3) {
5190 Parser.eatToEndOfStatement();
5191 return Error(Loc, "too many conditions on IT instruction");
5194 for (unsigned i = ITMask.size(); i != 0; --i) {
5195 char pos = ITMask[i - 1];
5196 if (pos != 't' && pos != 'e') {
5197 Parser.eatToEndOfStatement();
5198 return Error(Loc, "illegal IT block condition mask '" + ITMask + "'");
5201 if (ITMask[i - 1] == 't')
5204 Operands.push_back(ARMOperand::CreateITMask(Mask, Loc));
5207 // FIXME: This is all a pretty gross hack. We should automatically handle
5208 // optional operands like this via tblgen.
5210 // Next, add the CCOut and ConditionCode operands, if needed.
5212 // For mnemonics which can ever incorporate a carry setting bit or predication
5213 // code, our matching model involves us always generating CCOut and
5214 // ConditionCode operands to match the mnemonic "as written" and then we let
5215 // the matcher deal with finding the right instruction or generating an
5216 // appropriate error.
5217 bool CanAcceptCarrySet, CanAcceptPredicationCode;
5218 getMnemonicAcceptInfo(Mnemonic, CanAcceptCarrySet, CanAcceptPredicationCode);
5220 // If we had a carry-set on an instruction that can't do that, issue an
5222 if (!CanAcceptCarrySet && CarrySetting) {
5223 Parser.eatToEndOfStatement();
5224 return Error(NameLoc, "instruction '" + Mnemonic +
5225 "' can not set flags, but 's' suffix specified");
5227 // If we had a predication code on an instruction that can't do that, issue an
5229 if (!CanAcceptPredicationCode && PredicationCode != ARMCC::AL) {
5230 Parser.eatToEndOfStatement();
5231 return Error(NameLoc, "instruction '" + Mnemonic +
5232 "' is not predicable, but condition code specified");
5235 // Add the carry setting operand, if necessary.
5236 if (CanAcceptCarrySet) {
5237 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size());
5238 Operands.push_back(ARMOperand::CreateCCOut(CarrySetting ? ARM::CPSR : 0,
5242 // Add the predication code operand, if necessary.
5243 if (CanAcceptPredicationCode) {
5244 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size() +
5246 Operands.push_back(ARMOperand::CreateCondCode(
5247 ARMCC::CondCodes(PredicationCode), Loc));
5250 // Add the processor imod operand, if necessary.
5251 if (ProcessorIMod) {
5252 Operands.push_back(ARMOperand::CreateImm(
5253 MCConstantExpr::Create(ProcessorIMod, getContext()),
5257 // Add the remaining tokens in the mnemonic.
5258 while (Next != StringRef::npos) {
5260 Next = Name.find('.', Start + 1);
5261 StringRef ExtraToken = Name.slice(Start, Next);
5263 // Some NEON instructions have an optional datatype suffix that is
5264 // completely ignored. Check for that.
5265 if (isDataTypeToken(ExtraToken) &&
5266 doesIgnoreDataTypeSuffix(Mnemonic, ExtraToken))
5269 // For for ARM mode generate an error if the .n qualifier is used.
5270 if (ExtraToken == ".n" && !isThumb()) {
5271 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5272 return Error(Loc, "instruction with .n (narrow) qualifier not allowed in "
5276 // The .n qualifier is always discarded as that is what the tables
5277 // and matcher expect. In ARM mode the .w qualifier has no effect,
5278 // so discard it to avoid errors that can be caused by the matcher.
5279 if (ExtraToken != ".n" && (isThumb() || ExtraToken != ".w")) {
5280 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5281 Operands.push_back(ARMOperand::CreateToken(ExtraToken, Loc));
5285 // Read the remaining operands.
5286 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5287 // Read the first operand.
5288 if (parseOperand(Operands, Mnemonic)) {
5289 Parser.eatToEndOfStatement();
5293 while (getLexer().is(AsmToken::Comma)) {
5294 Parser.Lex(); // Eat the comma.
5296 // Parse and remember the operand.
5297 if (parseOperand(Operands, Mnemonic)) {
5298 Parser.eatToEndOfStatement();
5304 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5305 SMLoc Loc = getLexer().getLoc();
5306 Parser.eatToEndOfStatement();
5307 return Error(Loc, "unexpected token in argument list");
5310 Parser.Lex(); // Consume the EndOfStatement
5312 // Some instructions, mostly Thumb, have forms for the same mnemonic that
5313 // do and don't have a cc_out optional-def operand. With some spot-checks
5314 // of the operand list, we can figure out which variant we're trying to
5315 // parse and adjust accordingly before actually matching. We shouldn't ever
5316 // try to remove a cc_out operand that was explicitly set on the the
5317 // mnemonic, of course (CarrySetting == true). Reason number #317 the
5318 // table driven matcher doesn't fit well with the ARM instruction set.
5319 if (!CarrySetting && shouldOmitCCOutOperand(Mnemonic, Operands)) {
5320 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5321 Operands.erase(Operands.begin() + 1);
5325 // ARM mode 'blx' need special handling, as the register operand version
5326 // is predicable, but the label operand version is not. So, we can't rely
5327 // on the Mnemonic based checking to correctly figure out when to put
5328 // a k_CondCode operand in the list. If we're trying to match the label
5329 // version, remove the k_CondCode operand here.
5330 if (!isThumb() && Mnemonic == "blx" && Operands.size() == 3 &&
5331 static_cast<ARMOperand*>(Operands[2])->isImm()) {
5332 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5333 Operands.erase(Operands.begin() + 1);
5337 // Adjust operands of ldrexd/strexd to MCK_GPRPair.
5338 // ldrexd/strexd require even/odd GPR pair. To enforce this constraint,
5339 // a single GPRPair reg operand is used in the .td file to replace the two
5340 // GPRs. However, when parsing from asm, the two GRPs cannot be automatically
5341 // expressed as a GPRPair, so we have to manually merge them.
5342 // FIXME: We would really like to be able to tablegen'erate this.
5343 if (!isThumb() && Operands.size() > 4 &&
5344 (Mnemonic == "ldrexd" || Mnemonic == "strexd")) {
5345 bool isLoad = (Mnemonic == "ldrexd");
5346 unsigned Idx = isLoad ? 2 : 3;
5347 ARMOperand* Op1 = static_cast<ARMOperand*>(Operands[Idx]);
5348 ARMOperand* Op2 = static_cast<ARMOperand*>(Operands[Idx+1]);
5350 const MCRegisterClass& MRC = MRI->getRegClass(ARM::GPRRegClassID);
5351 // Adjust only if Op1 and Op2 are GPRs.
5352 if (Op1->isReg() && Op2->isReg() && MRC.contains(Op1->getReg()) &&
5353 MRC.contains(Op2->getReg())) {
5354 unsigned Reg1 = Op1->getReg();
5355 unsigned Reg2 = Op2->getReg();
5356 unsigned Rt = MRI->getEncodingValue(Reg1);
5357 unsigned Rt2 = MRI->getEncodingValue(Reg2);
5359 // Rt2 must be Rt + 1 and Rt must be even.
5360 if (Rt + 1 != Rt2 || (Rt & 1)) {
5361 Error(Op2->getStartLoc(), isLoad ?
5362 "destination operands must be sequential" :
5363 "source operands must be sequential");
5366 unsigned NewReg = MRI->getMatchingSuperReg(Reg1, ARM::gsub_0,
5367 &(MRI->getRegClass(ARM::GPRPairRegClassID)));
5368 Operands.erase(Operands.begin() + Idx, Operands.begin() + Idx + 2);
5369 Operands.insert(Operands.begin() + Idx, ARMOperand::CreateReg(
5370 NewReg, Op1->getStartLoc(), Op2->getEndLoc()));
5379 // Validate context-sensitive operand constraints.
5381 // return 'true' if register list contains non-low GPR registers,
5382 // 'false' otherwise. If Reg is in the register list or is HiReg, set
5383 // 'containsReg' to true.
5384 static bool checkLowRegisterList(MCInst Inst, unsigned OpNo, unsigned Reg,
5385 unsigned HiReg, bool &containsReg) {
5386 containsReg = false;
5387 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5388 unsigned OpReg = Inst.getOperand(i).getReg();
5391 // Anything other than a low register isn't legal here.
5392 if (!isARMLowRegister(OpReg) && (!HiReg || OpReg != HiReg))
5398 // Check if the specified regisgter is in the register list of the inst,
5399 // starting at the indicated operand number.
5400 static bool listContainsReg(MCInst &Inst, unsigned OpNo, unsigned Reg) {
5401 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5402 unsigned OpReg = Inst.getOperand(i).getReg();
5409 // FIXME: We would really prefer to have MCInstrInfo (the wrapper around
5410 // the ARMInsts array) instead. Getting that here requires awkward
5411 // API changes, though. Better way?
5413 extern const MCInstrDesc ARMInsts[];
5415 static const MCInstrDesc &getInstDesc(unsigned Opcode) {
5416 return ARMInsts[Opcode];
5419 // FIXME: We would really like to be able to tablegen'erate this.
5421 validateInstruction(MCInst &Inst,
5422 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5423 const MCInstrDesc &MCID = getInstDesc(Inst.getOpcode());
5424 SMLoc Loc = Operands[0]->getStartLoc();
5425 // Check the IT block state first.
5426 // NOTE: BKPT instruction has the interesting property of being
5427 // allowed in IT blocks, but not being predicable. It just always
5429 if (inITBlock() && Inst.getOpcode() != ARM::tBKPT &&
5430 Inst.getOpcode() != ARM::BKPT) {
5432 if (ITState.FirstCond)
5433 ITState.FirstCond = false;
5435 bit = (ITState.Mask >> (5 - ITState.CurPosition)) & 1;
5436 // The instruction must be predicable.
5437 if (!MCID.isPredicable())
5438 return Error(Loc, "instructions in IT block must be predicable");
5439 unsigned Cond = Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm();
5440 unsigned ITCond = bit ? ITState.Cond :
5441 ARMCC::getOppositeCondition(ITState.Cond);
5442 if (Cond != ITCond) {
5443 // Find the condition code Operand to get its SMLoc information.
5445 for (unsigned i = 1; i < Operands.size(); ++i)
5446 if (static_cast<ARMOperand*>(Operands[i])->isCondCode())
5447 CondLoc = Operands[i]->getStartLoc();
5448 return Error(CondLoc, "incorrect condition in IT block; got '" +
5449 StringRef(ARMCondCodeToString(ARMCC::CondCodes(Cond))) +
5450 "', but expected '" +
5451 ARMCondCodeToString(ARMCC::CondCodes(ITCond)) + "'");
5453 // Check for non-'al' condition codes outside of the IT block.
5454 } else if (isThumbTwo() && MCID.isPredicable() &&
5455 Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm() !=
5456 ARMCC::AL && Inst.getOpcode() != ARM::tB &&
5457 Inst.getOpcode() != ARM::t2B)
5458 return Error(Loc, "predicated instructions must be in IT block");
5460 switch (Inst.getOpcode()) {
5463 case ARM::LDRD_POST: {
5464 // Rt2 must be Rt + 1.
5465 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(0).getReg());
5466 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5468 return Error(Operands[3]->getStartLoc(),
5469 "destination operands must be sequential");
5473 // Rt2 must be Rt + 1.
5474 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(0).getReg());
5475 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5477 return Error(Operands[3]->getStartLoc(),
5478 "source operands must be sequential");
5482 case ARM::STRD_POST: {
5483 // Rt2 must be Rt + 1.
5484 unsigned Rt = MRI->getEncodingValue(Inst.getOperand(1).getReg());
5485 unsigned Rt2 = MRI->getEncodingValue(Inst.getOperand(2).getReg());
5487 return Error(Operands[3]->getStartLoc(),
5488 "source operands must be sequential");
5493 // width must be in range [1, 32-lsb]
5494 unsigned lsb = Inst.getOperand(2).getImm();
5495 unsigned widthm1 = Inst.getOperand(3).getImm();
5496 if (widthm1 >= 32 - lsb)
5497 return Error(Operands[5]->getStartLoc(),
5498 "bitfield width must be in range [1,32-lsb]");
5502 // If we're parsing Thumb2, the .w variant is available and handles
5503 // most cases that are normally illegal for a Thumb1 LDM
5504 // instruction. We'll make the transformation in processInstruction()
5507 // Thumb LDM instructions are writeback iff the base register is not
5508 // in the register list.
5509 unsigned Rn = Inst.getOperand(0).getReg();
5510 bool hasWritebackToken =
5511 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
5512 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
5513 bool listContainsBase;
5514 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) && !isThumbTwo())
5515 return Error(Operands[3 + hasWritebackToken]->getStartLoc(),
5516 "registers must be in range r0-r7");
5517 // If we should have writeback, then there should be a '!' token.
5518 if (!listContainsBase && !hasWritebackToken && !isThumbTwo())
5519 return Error(Operands[2]->getStartLoc(),
5520 "writeback operator '!' expected");
5521 // If we should not have writeback, there must not be a '!'. This is
5522 // true even for the 32-bit wide encodings.
5523 if (listContainsBase && hasWritebackToken)
5524 return Error(Operands[3]->getStartLoc(),
5525 "writeback operator '!' not allowed when base register "
5526 "in register list");
5530 case ARM::t2LDMIA_UPD: {
5531 if (listContainsReg(Inst, 3, Inst.getOperand(0).getReg()))
5532 return Error(Operands[4]->getStartLoc(),
5533 "writeback operator '!' not allowed when base register "
5534 "in register list");
5538 // The second source operand must be the same register as the destination
5541 // In this case, we must directly check the parsed operands because the
5542 // cvtThumbMultiply() function is written in such a way that it guarantees
5543 // this first statement is always true for the new Inst. Essentially, the
5544 // destination is unconditionally copied into the second source operand
5545 // without checking to see if it matches what we actually parsed.
5546 if (Operands.size() == 6 &&
5547 (((ARMOperand*)Operands[3])->getReg() !=
5548 ((ARMOperand*)Operands[5])->getReg()) &&
5549 (((ARMOperand*)Operands[3])->getReg() !=
5550 ((ARMOperand*)Operands[4])->getReg())) {
5551 return Error(Operands[3]->getStartLoc(),
5552 "destination register must match source register");
5556 // Like for ldm/stm, push and pop have hi-reg handling version in Thumb2,
5557 // so only issue a diagnostic for thumb1. The instructions will be
5558 // switched to the t2 encodings in processInstruction() if necessary.
5560 bool listContainsBase;
5561 if (checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase) &&
5563 return Error(Operands[2]->getStartLoc(),
5564 "registers must be in range r0-r7 or pc");
5568 bool listContainsBase;
5569 if (checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase) &&
5571 return Error(Operands[2]->getStartLoc(),
5572 "registers must be in range r0-r7 or lr");
5575 case ARM::tSTMIA_UPD: {
5576 bool listContainsBase;
5577 if (checkLowRegisterList(Inst, 4, 0, 0, listContainsBase) && !isThumbTwo())
5578 return Error(Operands[4]->getStartLoc(),
5579 "registers must be in range r0-r7");
5582 case ARM::tADDrSP: {
5583 // If the non-SP source operand and the destination operand are not the
5584 // same, we need thumb2 (for the wide encoding), or we have an error.
5585 if (!isThumbTwo() &&
5586 Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
5587 return Error(Operands[4]->getStartLoc(),
5588 "source register must be the same as destination");
5597 static unsigned getRealVSTOpcode(unsigned Opc, unsigned &Spacing) {
5599 default: llvm_unreachable("unexpected opcode!");
5601 case ARM::VST1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5602 case ARM::VST1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5603 case ARM::VST1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5604 case ARM::VST1LNdWB_register_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5605 case ARM::VST1LNdWB_register_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5606 case ARM::VST1LNdWB_register_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5607 case ARM::VST1LNdAsm_8: Spacing = 1; return ARM::VST1LNd8;
5608 case ARM::VST1LNdAsm_16: Spacing = 1; return ARM::VST1LNd16;
5609 case ARM::VST1LNdAsm_32: Spacing = 1; return ARM::VST1LNd32;
5612 case ARM::VST2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5613 case ARM::VST2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5614 case ARM::VST2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5615 case ARM::VST2LNqWB_fixed_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5616 case ARM::VST2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5618 case ARM::VST2LNdWB_register_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5619 case ARM::VST2LNdWB_register_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5620 case ARM::VST2LNdWB_register_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5621 case ARM::VST2LNqWB_register_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5622 case ARM::VST2LNqWB_register_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5624 case ARM::VST2LNdAsm_8: Spacing = 1; return ARM::VST2LNd8;
5625 case ARM::VST2LNdAsm_16: Spacing = 1; return ARM::VST2LNd16;
5626 case ARM::VST2LNdAsm_32: Spacing = 1; return ARM::VST2LNd32;
5627 case ARM::VST2LNqAsm_16: Spacing = 2; return ARM::VST2LNq16;
5628 case ARM::VST2LNqAsm_32: Spacing = 2; return ARM::VST2LNq32;
5631 case ARM::VST3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5632 case ARM::VST3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5633 case ARM::VST3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5634 case ARM::VST3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNq16_UPD;
5635 case ARM::VST3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5636 case ARM::VST3LNdWB_register_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5637 case ARM::VST3LNdWB_register_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5638 case ARM::VST3LNdWB_register_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5639 case ARM::VST3LNqWB_register_Asm_16: Spacing = 2; return ARM::VST3LNq16_UPD;
5640 case ARM::VST3LNqWB_register_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5641 case ARM::VST3LNdAsm_8: Spacing = 1; return ARM::VST3LNd8;
5642 case ARM::VST3LNdAsm_16: Spacing = 1; return ARM::VST3LNd16;
5643 case ARM::VST3LNdAsm_32: Spacing = 1; return ARM::VST3LNd32;
5644 case ARM::VST3LNqAsm_16: Spacing = 2; return ARM::VST3LNq16;
5645 case ARM::VST3LNqAsm_32: Spacing = 2; return ARM::VST3LNq32;
5648 case ARM::VST3dWB_fixed_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5649 case ARM::VST3dWB_fixed_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5650 case ARM::VST3dWB_fixed_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5651 case ARM::VST3qWB_fixed_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5652 case ARM::VST3qWB_fixed_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5653 case ARM::VST3qWB_fixed_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5654 case ARM::VST3dWB_register_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5655 case ARM::VST3dWB_register_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5656 case ARM::VST3dWB_register_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5657 case ARM::VST3qWB_register_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5658 case ARM::VST3qWB_register_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5659 case ARM::VST3qWB_register_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5660 case ARM::VST3dAsm_8: Spacing = 1; return ARM::VST3d8;
5661 case ARM::VST3dAsm_16: Spacing = 1; return ARM::VST3d16;
5662 case ARM::VST3dAsm_32: Spacing = 1; return ARM::VST3d32;
5663 case ARM::VST3qAsm_8: Spacing = 2; return ARM::VST3q8;
5664 case ARM::VST3qAsm_16: Spacing = 2; return ARM::VST3q16;
5665 case ARM::VST3qAsm_32: Spacing = 2; return ARM::VST3q32;
5668 case ARM::VST4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5669 case ARM::VST4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5670 case ARM::VST4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5671 case ARM::VST4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNq16_UPD;
5672 case ARM::VST4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5673 case ARM::VST4LNdWB_register_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5674 case ARM::VST4LNdWB_register_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5675 case ARM::VST4LNdWB_register_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5676 case ARM::VST4LNqWB_register_Asm_16: Spacing = 2; return ARM::VST4LNq16_UPD;
5677 case ARM::VST4LNqWB_register_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5678 case ARM::VST4LNdAsm_8: Spacing = 1; return ARM::VST4LNd8;
5679 case ARM::VST4LNdAsm_16: Spacing = 1; return ARM::VST4LNd16;
5680 case ARM::VST4LNdAsm_32: Spacing = 1; return ARM::VST4LNd32;
5681 case ARM::VST4LNqAsm_16: Spacing = 2; return ARM::VST4LNq16;
5682 case ARM::VST4LNqAsm_32: Spacing = 2; return ARM::VST4LNq32;
5685 case ARM::VST4dWB_fixed_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5686 case ARM::VST4dWB_fixed_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5687 case ARM::VST4dWB_fixed_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5688 case ARM::VST4qWB_fixed_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5689 case ARM::VST4qWB_fixed_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5690 case ARM::VST4qWB_fixed_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5691 case ARM::VST4dWB_register_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5692 case ARM::VST4dWB_register_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5693 case ARM::VST4dWB_register_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5694 case ARM::VST4qWB_register_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5695 case ARM::VST4qWB_register_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5696 case ARM::VST4qWB_register_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5697 case ARM::VST4dAsm_8: Spacing = 1; return ARM::VST4d8;
5698 case ARM::VST4dAsm_16: Spacing = 1; return ARM::VST4d16;
5699 case ARM::VST4dAsm_32: Spacing = 1; return ARM::VST4d32;
5700 case ARM::VST4qAsm_8: Spacing = 2; return ARM::VST4q8;
5701 case ARM::VST4qAsm_16: Spacing = 2; return ARM::VST4q16;
5702 case ARM::VST4qAsm_32: Spacing = 2; return ARM::VST4q32;
5706 static unsigned getRealVLDOpcode(unsigned Opc, unsigned &Spacing) {
5708 default: llvm_unreachable("unexpected opcode!");
5710 case ARM::VLD1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5711 case ARM::VLD1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5712 case ARM::VLD1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5713 case ARM::VLD1LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5714 case ARM::VLD1LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5715 case ARM::VLD1LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5716 case ARM::VLD1LNdAsm_8: Spacing = 1; return ARM::VLD1LNd8;
5717 case ARM::VLD1LNdAsm_16: Spacing = 1; return ARM::VLD1LNd16;
5718 case ARM::VLD1LNdAsm_32: Spacing = 1; return ARM::VLD1LNd32;
5721 case ARM::VLD2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5722 case ARM::VLD2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5723 case ARM::VLD2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5724 case ARM::VLD2LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNq16_UPD;
5725 case ARM::VLD2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5726 case ARM::VLD2LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5727 case ARM::VLD2LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5728 case ARM::VLD2LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5729 case ARM::VLD2LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD2LNq16_UPD;
5730 case ARM::VLD2LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5731 case ARM::VLD2LNdAsm_8: Spacing = 1; return ARM::VLD2LNd8;
5732 case ARM::VLD2LNdAsm_16: Spacing = 1; return ARM::VLD2LNd16;
5733 case ARM::VLD2LNdAsm_32: Spacing = 1; return ARM::VLD2LNd32;
5734 case ARM::VLD2LNqAsm_16: Spacing = 2; return ARM::VLD2LNq16;
5735 case ARM::VLD2LNqAsm_32: Spacing = 2; return ARM::VLD2LNq32;
5738 case ARM::VLD3DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5739 case ARM::VLD3DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5740 case ARM::VLD3DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5741 case ARM::VLD3DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPq8_UPD;
5742 case ARM::VLD3DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPq16_UPD;
5743 case ARM::VLD3DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5744 case ARM::VLD3DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5745 case ARM::VLD3DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5746 case ARM::VLD3DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5747 case ARM::VLD3DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD3DUPq8_UPD;
5748 case ARM::VLD3DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD3DUPq16_UPD;
5749 case ARM::VLD3DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5750 case ARM::VLD3DUPdAsm_8: Spacing = 1; return ARM::VLD3DUPd8;
5751 case ARM::VLD3DUPdAsm_16: Spacing = 1; return ARM::VLD3DUPd16;
5752 case ARM::VLD3DUPdAsm_32: Spacing = 1; return ARM::VLD3DUPd32;
5753 case ARM::VLD3DUPqAsm_8: Spacing = 2; return ARM::VLD3DUPq8;
5754 case ARM::VLD3DUPqAsm_16: Spacing = 2; return ARM::VLD3DUPq16;
5755 case ARM::VLD3DUPqAsm_32: Spacing = 2; return ARM::VLD3DUPq32;
5758 case ARM::VLD3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5759 case ARM::VLD3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5760 case ARM::VLD3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5761 case ARM::VLD3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNq16_UPD;
5762 case ARM::VLD3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5763 case ARM::VLD3LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5764 case ARM::VLD3LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5765 case ARM::VLD3LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5766 case ARM::VLD3LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD3LNq16_UPD;
5767 case ARM::VLD3LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5768 case ARM::VLD3LNdAsm_8: Spacing = 1; return ARM::VLD3LNd8;
5769 case ARM::VLD3LNdAsm_16: Spacing = 1; return ARM::VLD3LNd16;
5770 case ARM::VLD3LNdAsm_32: Spacing = 1; return ARM::VLD3LNd32;
5771 case ARM::VLD3LNqAsm_16: Spacing = 2; return ARM::VLD3LNq16;
5772 case ARM::VLD3LNqAsm_32: Spacing = 2; return ARM::VLD3LNq32;
5775 case ARM::VLD3dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5776 case ARM::VLD3dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5777 case ARM::VLD3dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5778 case ARM::VLD3qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5779 case ARM::VLD3qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5780 case ARM::VLD3qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5781 case ARM::VLD3dWB_register_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5782 case ARM::VLD3dWB_register_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5783 case ARM::VLD3dWB_register_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5784 case ARM::VLD3qWB_register_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5785 case ARM::VLD3qWB_register_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5786 case ARM::VLD3qWB_register_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5787 case ARM::VLD3dAsm_8: Spacing = 1; return ARM::VLD3d8;
5788 case ARM::VLD3dAsm_16: Spacing = 1; return ARM::VLD3d16;
5789 case ARM::VLD3dAsm_32: Spacing = 1; return ARM::VLD3d32;
5790 case ARM::VLD3qAsm_8: Spacing = 2; return ARM::VLD3q8;
5791 case ARM::VLD3qAsm_16: Spacing = 2; return ARM::VLD3q16;
5792 case ARM::VLD3qAsm_32: Spacing = 2; return ARM::VLD3q32;
5795 case ARM::VLD4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5796 case ARM::VLD4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5797 case ARM::VLD4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5798 case ARM::VLD4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNq16_UPD;
5799 case ARM::VLD4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5800 case ARM::VLD4LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5801 case ARM::VLD4LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5802 case ARM::VLD4LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5803 case ARM::VLD4LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD4LNq16_UPD;
5804 case ARM::VLD4LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5805 case ARM::VLD4LNdAsm_8: Spacing = 1; return ARM::VLD4LNd8;
5806 case ARM::VLD4LNdAsm_16: Spacing = 1; return ARM::VLD4LNd16;
5807 case ARM::VLD4LNdAsm_32: Spacing = 1; return ARM::VLD4LNd32;
5808 case ARM::VLD4LNqAsm_16: Spacing = 2; return ARM::VLD4LNq16;
5809 case ARM::VLD4LNqAsm_32: Spacing = 2; return ARM::VLD4LNq32;
5812 case ARM::VLD4DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5813 case ARM::VLD4DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5814 case ARM::VLD4DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5815 case ARM::VLD4DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPq8_UPD;
5816 case ARM::VLD4DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPq16_UPD;
5817 case ARM::VLD4DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5818 case ARM::VLD4DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5819 case ARM::VLD4DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5820 case ARM::VLD4DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5821 case ARM::VLD4DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD4DUPq8_UPD;
5822 case ARM::VLD4DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD4DUPq16_UPD;
5823 case ARM::VLD4DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5824 case ARM::VLD4DUPdAsm_8: Spacing = 1; return ARM::VLD4DUPd8;
5825 case ARM::VLD4DUPdAsm_16: Spacing = 1; return ARM::VLD4DUPd16;
5826 case ARM::VLD4DUPdAsm_32: Spacing = 1; return ARM::VLD4DUPd32;
5827 case ARM::VLD4DUPqAsm_8: Spacing = 2; return ARM::VLD4DUPq8;
5828 case ARM::VLD4DUPqAsm_16: Spacing = 2; return ARM::VLD4DUPq16;
5829 case ARM::VLD4DUPqAsm_32: Spacing = 2; return ARM::VLD4DUPq32;
5832 case ARM::VLD4dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5833 case ARM::VLD4dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5834 case ARM::VLD4dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5835 case ARM::VLD4qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5836 case ARM::VLD4qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5837 case ARM::VLD4qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5838 case ARM::VLD4dWB_register_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5839 case ARM::VLD4dWB_register_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5840 case ARM::VLD4dWB_register_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5841 case ARM::VLD4qWB_register_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5842 case ARM::VLD4qWB_register_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5843 case ARM::VLD4qWB_register_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5844 case ARM::VLD4dAsm_8: Spacing = 1; return ARM::VLD4d8;
5845 case ARM::VLD4dAsm_16: Spacing = 1; return ARM::VLD4d16;
5846 case ARM::VLD4dAsm_32: Spacing = 1; return ARM::VLD4d32;
5847 case ARM::VLD4qAsm_8: Spacing = 2; return ARM::VLD4q8;
5848 case ARM::VLD4qAsm_16: Spacing = 2; return ARM::VLD4q16;
5849 case ARM::VLD4qAsm_32: Spacing = 2; return ARM::VLD4q32;
5854 processInstruction(MCInst &Inst,
5855 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5856 switch (Inst.getOpcode()) {
5857 // Alias for alternate form of 'ADR Rd, #imm' instruction.
5859 if (Inst.getOperand(1).getReg() != ARM::PC ||
5860 Inst.getOperand(5).getReg() != 0)
5863 TmpInst.setOpcode(ARM::ADR);
5864 TmpInst.addOperand(Inst.getOperand(0));
5865 TmpInst.addOperand(Inst.getOperand(2));
5866 TmpInst.addOperand(Inst.getOperand(3));
5867 TmpInst.addOperand(Inst.getOperand(4));
5871 // Aliases for alternate PC+imm syntax of LDR instructions.
5872 case ARM::t2LDRpcrel:
5873 // Select the narrow version if the immediate will fit.
5874 if (Inst.getOperand(1).getImm() > 0 &&
5875 Inst.getOperand(1).getImm() <= 0xff &&
5876 !(static_cast<ARMOperand*>(Operands[2])->isToken() &&
5877 static_cast<ARMOperand*>(Operands[2])->getToken() == ".w"))
5878 Inst.setOpcode(ARM::tLDRpci);
5880 Inst.setOpcode(ARM::t2LDRpci);
5882 case ARM::t2LDRBpcrel:
5883 Inst.setOpcode(ARM::t2LDRBpci);
5885 case ARM::t2LDRHpcrel:
5886 Inst.setOpcode(ARM::t2LDRHpci);
5888 case ARM::t2LDRSBpcrel:
5889 Inst.setOpcode(ARM::t2LDRSBpci);
5891 case ARM::t2LDRSHpcrel:
5892 Inst.setOpcode(ARM::t2LDRSHpci);
5894 // Handle NEON VST complex aliases.
5895 case ARM::VST1LNdWB_register_Asm_8:
5896 case ARM::VST1LNdWB_register_Asm_16:
5897 case ARM::VST1LNdWB_register_Asm_32: {
5899 // Shuffle the operands around so the lane index operand is in the
5902 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5903 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5904 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5905 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5906 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5907 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5908 TmpInst.addOperand(Inst.getOperand(1)); // lane
5909 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5910 TmpInst.addOperand(Inst.getOperand(6));
5915 case ARM::VST2LNdWB_register_Asm_8:
5916 case ARM::VST2LNdWB_register_Asm_16:
5917 case ARM::VST2LNdWB_register_Asm_32:
5918 case ARM::VST2LNqWB_register_Asm_16:
5919 case ARM::VST2LNqWB_register_Asm_32: {
5921 // Shuffle the operands around so the lane index operand is in the
5924 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5925 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5926 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5927 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5928 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5929 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5930 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5932 TmpInst.addOperand(Inst.getOperand(1)); // lane
5933 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5934 TmpInst.addOperand(Inst.getOperand(6));
5939 case ARM::VST3LNdWB_register_Asm_8:
5940 case ARM::VST3LNdWB_register_Asm_16:
5941 case ARM::VST3LNdWB_register_Asm_32:
5942 case ARM::VST3LNqWB_register_Asm_16:
5943 case ARM::VST3LNqWB_register_Asm_32: {
5945 // Shuffle the operands around so the lane index operand is in the
5948 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5949 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5950 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5951 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5952 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5953 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5954 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5956 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5958 TmpInst.addOperand(Inst.getOperand(1)); // lane
5959 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5960 TmpInst.addOperand(Inst.getOperand(6));
5965 case ARM::VST4LNdWB_register_Asm_8:
5966 case ARM::VST4LNdWB_register_Asm_16:
5967 case ARM::VST4LNdWB_register_Asm_32:
5968 case ARM::VST4LNqWB_register_Asm_16:
5969 case ARM::VST4LNqWB_register_Asm_32: {
5971 // Shuffle the operands around so the lane index operand is in the
5974 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5975 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5976 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5977 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5978 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5979 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5980 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5982 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5984 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5986 TmpInst.addOperand(Inst.getOperand(1)); // lane
5987 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5988 TmpInst.addOperand(Inst.getOperand(6));
5993 case ARM::VST1LNdWB_fixed_Asm_8:
5994 case ARM::VST1LNdWB_fixed_Asm_16:
5995 case ARM::VST1LNdWB_fixed_Asm_32: {
5997 // Shuffle the operands around so the lane index operand is in the
6000 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6001 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6002 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6003 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6004 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6005 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6006 TmpInst.addOperand(Inst.getOperand(1)); // lane
6007 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6008 TmpInst.addOperand(Inst.getOperand(5));
6013 case ARM::VST2LNdWB_fixed_Asm_8:
6014 case ARM::VST2LNdWB_fixed_Asm_16:
6015 case ARM::VST2LNdWB_fixed_Asm_32:
6016 case ARM::VST2LNqWB_fixed_Asm_16:
6017 case ARM::VST2LNqWB_fixed_Asm_32: {
6019 // Shuffle the operands around so the lane index operand is in the
6022 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6023 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6024 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6025 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6026 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6027 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6028 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6030 TmpInst.addOperand(Inst.getOperand(1)); // lane
6031 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6032 TmpInst.addOperand(Inst.getOperand(5));
6037 case ARM::VST3LNdWB_fixed_Asm_8:
6038 case ARM::VST3LNdWB_fixed_Asm_16:
6039 case ARM::VST3LNdWB_fixed_Asm_32:
6040 case ARM::VST3LNqWB_fixed_Asm_16:
6041 case ARM::VST3LNqWB_fixed_Asm_32: {
6043 // Shuffle the operands around so the lane index operand is in the
6046 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6047 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6048 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6049 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6050 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6051 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6052 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6054 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6056 TmpInst.addOperand(Inst.getOperand(1)); // lane
6057 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6058 TmpInst.addOperand(Inst.getOperand(5));
6063 case ARM::VST4LNdWB_fixed_Asm_8:
6064 case ARM::VST4LNdWB_fixed_Asm_16:
6065 case ARM::VST4LNdWB_fixed_Asm_32:
6066 case ARM::VST4LNqWB_fixed_Asm_16:
6067 case ARM::VST4LNqWB_fixed_Asm_32: {
6069 // Shuffle the operands around so the lane index operand is in the
6072 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6073 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6074 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6075 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6076 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6077 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6078 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6080 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6082 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6084 TmpInst.addOperand(Inst.getOperand(1)); // lane
6085 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6086 TmpInst.addOperand(Inst.getOperand(5));
6091 case ARM::VST1LNdAsm_8:
6092 case ARM::VST1LNdAsm_16:
6093 case ARM::VST1LNdAsm_32: {
6095 // Shuffle the operands around so the lane index operand is in the
6098 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6099 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6100 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6101 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6102 TmpInst.addOperand(Inst.getOperand(1)); // lane
6103 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6104 TmpInst.addOperand(Inst.getOperand(5));
6109 case ARM::VST2LNdAsm_8:
6110 case ARM::VST2LNdAsm_16:
6111 case ARM::VST2LNdAsm_32:
6112 case ARM::VST2LNqAsm_16:
6113 case ARM::VST2LNqAsm_32: {
6115 // Shuffle the operands around so the lane index operand is in the
6118 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6119 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6120 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6121 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6122 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6124 TmpInst.addOperand(Inst.getOperand(1)); // lane
6125 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6126 TmpInst.addOperand(Inst.getOperand(5));
6131 case ARM::VST3LNdAsm_8:
6132 case ARM::VST3LNdAsm_16:
6133 case ARM::VST3LNdAsm_32:
6134 case ARM::VST3LNqAsm_16:
6135 case ARM::VST3LNqAsm_32: {
6137 // Shuffle the operands around so the lane index operand is in the
6140 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6141 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6142 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6143 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6144 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6146 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6148 TmpInst.addOperand(Inst.getOperand(1)); // lane
6149 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6150 TmpInst.addOperand(Inst.getOperand(5));
6155 case ARM::VST4LNdAsm_8:
6156 case ARM::VST4LNdAsm_16:
6157 case ARM::VST4LNdAsm_32:
6158 case ARM::VST4LNqAsm_16:
6159 case ARM::VST4LNqAsm_32: {
6161 // Shuffle the operands around so the lane index operand is in the
6164 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6165 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6166 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6167 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6168 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6170 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6172 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6174 TmpInst.addOperand(Inst.getOperand(1)); // lane
6175 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6176 TmpInst.addOperand(Inst.getOperand(5));
6181 // Handle NEON VLD complex aliases.
6182 case ARM::VLD1LNdWB_register_Asm_8:
6183 case ARM::VLD1LNdWB_register_Asm_16:
6184 case ARM::VLD1LNdWB_register_Asm_32: {
6186 // Shuffle the operands around so the lane index operand is in the
6189 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6190 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6191 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6192 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6193 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6194 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6195 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6196 TmpInst.addOperand(Inst.getOperand(1)); // lane
6197 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6198 TmpInst.addOperand(Inst.getOperand(6));
6203 case ARM::VLD2LNdWB_register_Asm_8:
6204 case ARM::VLD2LNdWB_register_Asm_16:
6205 case ARM::VLD2LNdWB_register_Asm_32:
6206 case ARM::VLD2LNqWB_register_Asm_16:
6207 case ARM::VLD2LNqWB_register_Asm_32: {
6209 // Shuffle the operands around so the lane index operand is in the
6212 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6213 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6214 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6216 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6217 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6218 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6219 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6220 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6221 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6223 TmpInst.addOperand(Inst.getOperand(1)); // lane
6224 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6225 TmpInst.addOperand(Inst.getOperand(6));
6230 case ARM::VLD3LNdWB_register_Asm_8:
6231 case ARM::VLD3LNdWB_register_Asm_16:
6232 case ARM::VLD3LNdWB_register_Asm_32:
6233 case ARM::VLD3LNqWB_register_Asm_16:
6234 case ARM::VLD3LNqWB_register_Asm_32: {
6236 // Shuffle the operands around so the lane index operand is in the
6239 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6240 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6241 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6243 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6245 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6246 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6247 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6248 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6249 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6250 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6252 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6254 TmpInst.addOperand(Inst.getOperand(1)); // lane
6255 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6256 TmpInst.addOperand(Inst.getOperand(6));
6261 case ARM::VLD4LNdWB_register_Asm_8:
6262 case ARM::VLD4LNdWB_register_Asm_16:
6263 case ARM::VLD4LNdWB_register_Asm_32:
6264 case ARM::VLD4LNqWB_register_Asm_16:
6265 case ARM::VLD4LNqWB_register_Asm_32: {
6267 // Shuffle the operands around so the lane index operand is in the
6270 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6271 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6272 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6274 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6276 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6278 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6279 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6280 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6281 TmpInst.addOperand(Inst.getOperand(4)); // Rm
6282 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6283 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6285 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6287 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6289 TmpInst.addOperand(Inst.getOperand(1)); // lane
6290 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
6291 TmpInst.addOperand(Inst.getOperand(6));
6296 case ARM::VLD1LNdWB_fixed_Asm_8:
6297 case ARM::VLD1LNdWB_fixed_Asm_16:
6298 case ARM::VLD1LNdWB_fixed_Asm_32: {
6300 // Shuffle the operands around so the lane index operand is in the
6303 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6304 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6305 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6306 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6307 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6308 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6309 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6310 TmpInst.addOperand(Inst.getOperand(1)); // lane
6311 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6312 TmpInst.addOperand(Inst.getOperand(5));
6317 case ARM::VLD2LNdWB_fixed_Asm_8:
6318 case ARM::VLD2LNdWB_fixed_Asm_16:
6319 case ARM::VLD2LNdWB_fixed_Asm_32:
6320 case ARM::VLD2LNqWB_fixed_Asm_16:
6321 case ARM::VLD2LNqWB_fixed_Asm_32: {
6323 // Shuffle the operands around so the lane index operand is in the
6326 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6327 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6328 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6330 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6331 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6332 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6333 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6334 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6335 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6337 TmpInst.addOperand(Inst.getOperand(1)); // lane
6338 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6339 TmpInst.addOperand(Inst.getOperand(5));
6344 case ARM::VLD3LNdWB_fixed_Asm_8:
6345 case ARM::VLD3LNdWB_fixed_Asm_16:
6346 case ARM::VLD3LNdWB_fixed_Asm_32:
6347 case ARM::VLD3LNqWB_fixed_Asm_16:
6348 case ARM::VLD3LNqWB_fixed_Asm_32: {
6350 // Shuffle the operands around so the lane index operand is in the
6353 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6354 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6355 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6357 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6359 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6360 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6361 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6362 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6363 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6364 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6366 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6368 TmpInst.addOperand(Inst.getOperand(1)); // lane
6369 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6370 TmpInst.addOperand(Inst.getOperand(5));
6375 case ARM::VLD4LNdWB_fixed_Asm_8:
6376 case ARM::VLD4LNdWB_fixed_Asm_16:
6377 case ARM::VLD4LNdWB_fixed_Asm_32:
6378 case ARM::VLD4LNqWB_fixed_Asm_16:
6379 case ARM::VLD4LNqWB_fixed_Asm_32: {
6381 // Shuffle the operands around so the lane index operand is in the
6384 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6385 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6386 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6388 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6390 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6392 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6393 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6394 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6395 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6396 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6397 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6399 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6401 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6403 TmpInst.addOperand(Inst.getOperand(1)); // lane
6404 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6405 TmpInst.addOperand(Inst.getOperand(5));
6410 case ARM::VLD1LNdAsm_8:
6411 case ARM::VLD1LNdAsm_16:
6412 case ARM::VLD1LNdAsm_32: {
6414 // Shuffle the operands around so the lane index operand is in the
6417 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6418 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6419 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6420 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6421 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6422 TmpInst.addOperand(Inst.getOperand(1)); // lane
6423 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6424 TmpInst.addOperand(Inst.getOperand(5));
6429 case ARM::VLD2LNdAsm_8:
6430 case ARM::VLD2LNdAsm_16:
6431 case ARM::VLD2LNdAsm_32:
6432 case ARM::VLD2LNqAsm_16:
6433 case ARM::VLD2LNqAsm_32: {
6435 // Shuffle the operands around so the lane index operand is in the
6438 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6439 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6440 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6442 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6443 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6444 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6445 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6447 TmpInst.addOperand(Inst.getOperand(1)); // lane
6448 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6449 TmpInst.addOperand(Inst.getOperand(5));
6454 case ARM::VLD3LNdAsm_8:
6455 case ARM::VLD3LNdAsm_16:
6456 case ARM::VLD3LNdAsm_32:
6457 case ARM::VLD3LNqAsm_16:
6458 case ARM::VLD3LNqAsm_32: {
6460 // Shuffle the operands around so the lane index operand is in the
6463 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6464 TmpInst.addOperand(Inst.getOperand(0)); // Vd
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
6470 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6471 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6472 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6474 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6476 TmpInst.addOperand(Inst.getOperand(1)); // lane
6477 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6478 TmpInst.addOperand(Inst.getOperand(5));
6483 case ARM::VLD4LNdAsm_8:
6484 case ARM::VLD4LNdAsm_16:
6485 case ARM::VLD4LNdAsm_32:
6486 case ARM::VLD4LNqAsm_16:
6487 case ARM::VLD4LNqAsm_32: {
6489 // Shuffle the operands around so the lane index operand is in the
6492 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6493 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6494 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6496 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6498 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6500 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6501 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6502 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6503 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6505 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6507 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6509 TmpInst.addOperand(Inst.getOperand(1)); // lane
6510 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6511 TmpInst.addOperand(Inst.getOperand(5));
6516 // VLD3DUP single 3-element structure to all lanes instructions.
6517 case ARM::VLD3DUPdAsm_8:
6518 case ARM::VLD3DUPdAsm_16:
6519 case ARM::VLD3DUPdAsm_32:
6520 case ARM::VLD3DUPqAsm_8:
6521 case ARM::VLD3DUPqAsm_16:
6522 case ARM::VLD3DUPqAsm_32: {
6525 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6526 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6527 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6529 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6531 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6532 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6533 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6534 TmpInst.addOperand(Inst.getOperand(4));
6539 case ARM::VLD3DUPdWB_fixed_Asm_8:
6540 case ARM::VLD3DUPdWB_fixed_Asm_16:
6541 case ARM::VLD3DUPdWB_fixed_Asm_32:
6542 case ARM::VLD3DUPqWB_fixed_Asm_8:
6543 case ARM::VLD3DUPqWB_fixed_Asm_16:
6544 case ARM::VLD3DUPqWB_fixed_Asm_32: {
6547 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6548 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6549 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6551 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6553 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6554 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6555 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6556 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6557 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6558 TmpInst.addOperand(Inst.getOperand(4));
6563 case ARM::VLD3DUPdWB_register_Asm_8:
6564 case ARM::VLD3DUPdWB_register_Asm_16:
6565 case ARM::VLD3DUPdWB_register_Asm_32:
6566 case ARM::VLD3DUPqWB_register_Asm_8:
6567 case ARM::VLD3DUPqWB_register_Asm_16:
6568 case ARM::VLD3DUPqWB_register_Asm_32: {
6571 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6572 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6573 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6575 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6577 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6578 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6579 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6580 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6581 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6582 TmpInst.addOperand(Inst.getOperand(5));
6587 // VLD3 multiple 3-element structure instructions.
6588 case ARM::VLD3dAsm_8:
6589 case ARM::VLD3dAsm_16:
6590 case ARM::VLD3dAsm_32:
6591 case ARM::VLD3qAsm_8:
6592 case ARM::VLD3qAsm_16:
6593 case ARM::VLD3qAsm_32: {
6596 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6597 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6598 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6600 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6602 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6603 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6604 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6605 TmpInst.addOperand(Inst.getOperand(4));
6610 case ARM::VLD3dWB_fixed_Asm_8:
6611 case ARM::VLD3dWB_fixed_Asm_16:
6612 case ARM::VLD3dWB_fixed_Asm_32:
6613 case ARM::VLD3qWB_fixed_Asm_8:
6614 case ARM::VLD3qWB_fixed_Asm_16:
6615 case ARM::VLD3qWB_fixed_Asm_32: {
6618 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6619 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6620 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6622 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6624 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6625 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6626 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6627 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6628 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6629 TmpInst.addOperand(Inst.getOperand(4));
6634 case ARM::VLD3dWB_register_Asm_8:
6635 case ARM::VLD3dWB_register_Asm_16:
6636 case ARM::VLD3dWB_register_Asm_32:
6637 case ARM::VLD3qWB_register_Asm_8:
6638 case ARM::VLD3qWB_register_Asm_16:
6639 case ARM::VLD3qWB_register_Asm_32: {
6642 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6643 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6644 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6646 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6648 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6649 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6650 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6651 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6652 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6653 TmpInst.addOperand(Inst.getOperand(5));
6658 // VLD4DUP single 3-element structure to all lanes instructions.
6659 case ARM::VLD4DUPdAsm_8:
6660 case ARM::VLD4DUPdAsm_16:
6661 case ARM::VLD4DUPdAsm_32:
6662 case ARM::VLD4DUPqAsm_8:
6663 case ARM::VLD4DUPqAsm_16:
6664 case ARM::VLD4DUPqAsm_32: {
6667 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6668 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6669 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6671 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6673 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6675 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6676 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6677 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6678 TmpInst.addOperand(Inst.getOperand(4));
6683 case ARM::VLD4DUPdWB_fixed_Asm_8:
6684 case ARM::VLD4DUPdWB_fixed_Asm_16:
6685 case ARM::VLD4DUPdWB_fixed_Asm_32:
6686 case ARM::VLD4DUPqWB_fixed_Asm_8:
6687 case ARM::VLD4DUPqWB_fixed_Asm_16:
6688 case ARM::VLD4DUPqWB_fixed_Asm_32: {
6691 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6692 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6693 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6695 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6697 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6699 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6700 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6701 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6702 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6703 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6704 TmpInst.addOperand(Inst.getOperand(4));
6709 case ARM::VLD4DUPdWB_register_Asm_8:
6710 case ARM::VLD4DUPdWB_register_Asm_16:
6711 case ARM::VLD4DUPdWB_register_Asm_32:
6712 case ARM::VLD4DUPqWB_register_Asm_8:
6713 case ARM::VLD4DUPqWB_register_Asm_16:
6714 case ARM::VLD4DUPqWB_register_Asm_32: {
6717 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6718 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6719 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6721 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6723 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6725 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6726 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6727 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6728 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6729 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6730 TmpInst.addOperand(Inst.getOperand(5));
6735 // VLD4 multiple 4-element structure instructions.
6736 case ARM::VLD4dAsm_8:
6737 case ARM::VLD4dAsm_16:
6738 case ARM::VLD4dAsm_32:
6739 case ARM::VLD4qAsm_8:
6740 case ARM::VLD4qAsm_16:
6741 case ARM::VLD4qAsm_32: {
6744 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6745 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6746 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6748 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6750 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6752 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6753 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6754 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6755 TmpInst.addOperand(Inst.getOperand(4));
6760 case ARM::VLD4dWB_fixed_Asm_8:
6761 case ARM::VLD4dWB_fixed_Asm_16:
6762 case ARM::VLD4dWB_fixed_Asm_32:
6763 case ARM::VLD4qWB_fixed_Asm_8:
6764 case ARM::VLD4qWB_fixed_Asm_16:
6765 case ARM::VLD4qWB_fixed_Asm_32: {
6768 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6769 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6770 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6772 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6774 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6776 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6777 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6778 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6779 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6780 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6781 TmpInst.addOperand(Inst.getOperand(4));
6786 case ARM::VLD4dWB_register_Asm_8:
6787 case ARM::VLD4dWB_register_Asm_16:
6788 case ARM::VLD4dWB_register_Asm_32:
6789 case ARM::VLD4qWB_register_Asm_8:
6790 case ARM::VLD4qWB_register_Asm_16:
6791 case ARM::VLD4qWB_register_Asm_32: {
6794 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6795 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6796 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6798 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6800 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6802 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6803 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6804 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6805 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6806 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6807 TmpInst.addOperand(Inst.getOperand(5));
6812 // VST3 multiple 3-element structure instructions.
6813 case ARM::VST3dAsm_8:
6814 case ARM::VST3dAsm_16:
6815 case ARM::VST3dAsm_32:
6816 case ARM::VST3qAsm_8:
6817 case ARM::VST3qAsm_16:
6818 case ARM::VST3qAsm_32: {
6821 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6822 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6823 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6824 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6825 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6827 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6829 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6830 TmpInst.addOperand(Inst.getOperand(4));
6835 case ARM::VST3dWB_fixed_Asm_8:
6836 case ARM::VST3dWB_fixed_Asm_16:
6837 case ARM::VST3dWB_fixed_Asm_32:
6838 case ARM::VST3qWB_fixed_Asm_8:
6839 case ARM::VST3qWB_fixed_Asm_16:
6840 case ARM::VST3qWB_fixed_Asm_32: {
6843 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6844 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6845 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6846 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6847 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6848 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6849 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6851 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6853 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6854 TmpInst.addOperand(Inst.getOperand(4));
6859 case ARM::VST3dWB_register_Asm_8:
6860 case ARM::VST3dWB_register_Asm_16:
6861 case ARM::VST3dWB_register_Asm_32:
6862 case ARM::VST3qWB_register_Asm_8:
6863 case ARM::VST3qWB_register_Asm_16:
6864 case ARM::VST3qWB_register_Asm_32: {
6867 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6868 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6869 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6870 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6871 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6872 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6873 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6875 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6877 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6878 TmpInst.addOperand(Inst.getOperand(5));
6883 // VST4 multiple 3-element structure instructions.
6884 case ARM::VST4dAsm_8:
6885 case ARM::VST4dAsm_16:
6886 case ARM::VST4dAsm_32:
6887 case ARM::VST4qAsm_8:
6888 case ARM::VST4qAsm_16:
6889 case ARM::VST4qAsm_32: {
6892 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6893 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6894 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6895 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6896 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6898 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6900 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6902 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6903 TmpInst.addOperand(Inst.getOperand(4));
6908 case ARM::VST4dWB_fixed_Asm_8:
6909 case ARM::VST4dWB_fixed_Asm_16:
6910 case ARM::VST4dWB_fixed_Asm_32:
6911 case ARM::VST4qWB_fixed_Asm_8:
6912 case ARM::VST4qWB_fixed_Asm_16:
6913 case ARM::VST4qWB_fixed_Asm_32: {
6916 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6917 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6918 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6919 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6920 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6921 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6922 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6924 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6926 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6928 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6929 TmpInst.addOperand(Inst.getOperand(4));
6934 case ARM::VST4dWB_register_Asm_8:
6935 case ARM::VST4dWB_register_Asm_16:
6936 case ARM::VST4dWB_register_Asm_32:
6937 case ARM::VST4qWB_register_Asm_8:
6938 case ARM::VST4qWB_register_Asm_16:
6939 case ARM::VST4qWB_register_Asm_32: {
6942 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6943 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6944 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6945 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6946 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6947 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6948 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6950 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6952 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6954 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6955 TmpInst.addOperand(Inst.getOperand(5));
6960 // Handle encoding choice for the shift-immediate instructions.
6963 case ARM::t2ASRri: {
6964 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
6965 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
6966 Inst.getOperand(5).getReg() == (inITBlock() ? 0 : ARM::CPSR) &&
6967 !(static_cast<ARMOperand*>(Operands[3])->isToken() &&
6968 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w")) {
6970 switch (Inst.getOpcode()) {
6971 default: llvm_unreachable("unexpected opcode");
6972 case ARM::t2LSLri: NewOpc = ARM::tLSLri; break;
6973 case ARM::t2LSRri: NewOpc = ARM::tLSRri; break;
6974 case ARM::t2ASRri: NewOpc = ARM::tASRri; break;
6976 // The Thumb1 operands aren't in the same order. Awesome, eh?
6978 TmpInst.setOpcode(NewOpc);
6979 TmpInst.addOperand(Inst.getOperand(0));
6980 TmpInst.addOperand(Inst.getOperand(5));
6981 TmpInst.addOperand(Inst.getOperand(1));
6982 TmpInst.addOperand(Inst.getOperand(2));
6983 TmpInst.addOperand(Inst.getOperand(3));
6984 TmpInst.addOperand(Inst.getOperand(4));
6991 // Handle the Thumb2 mode MOV complex aliases.
6993 case ARM::t2MOVSsr: {
6994 // Which instruction to expand to depends on the CCOut operand and
6995 // whether we're in an IT block if the register operands are low
6997 bool isNarrow = false;
6998 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
6999 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7000 isARMLowRegister(Inst.getOperand(2).getReg()) &&
7001 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7002 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsr))
7006 switch(ARM_AM::getSORegShOp(Inst.getOperand(3).getImm())) {
7007 default: llvm_unreachable("unexpected opcode!");
7008 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRrr : ARM::t2ASRrr; break;
7009 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRrr : ARM::t2LSRrr; break;
7010 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLrr : ARM::t2LSLrr; break;
7011 case ARM_AM::ror: newOpc = isNarrow ? ARM::tROR : ARM::t2RORrr; break;
7013 TmpInst.setOpcode(newOpc);
7014 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7016 TmpInst.addOperand(MCOperand::CreateReg(
7017 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
7018 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7019 TmpInst.addOperand(Inst.getOperand(2)); // Rm
7020 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
7021 TmpInst.addOperand(Inst.getOperand(5));
7023 TmpInst.addOperand(MCOperand::CreateReg(
7024 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
7029 case ARM::t2MOVSsi: {
7030 // Which instruction to expand to depends on the CCOut operand and
7031 // whether we're in an IT block if the register operands are low
7033 bool isNarrow = false;
7034 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7035 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7036 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsi))
7040 switch(ARM_AM::getSORegShOp(Inst.getOperand(2).getImm())) {
7041 default: llvm_unreachable("unexpected opcode!");
7042 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRri : ARM::t2ASRri; break;
7043 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRri : ARM::t2LSRri; break;
7044 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLri : ARM::t2LSLri; break;
7045 case ARM_AM::ror: newOpc = ARM::t2RORri; isNarrow = false; break;
7046 case ARM_AM::rrx: isNarrow = false; newOpc = ARM::t2RRX; break;
7048 unsigned Amount = ARM_AM::getSORegOffset(Inst.getOperand(2).getImm());
7049 if (Amount == 32) Amount = 0;
7050 TmpInst.setOpcode(newOpc);
7051 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7053 TmpInst.addOperand(MCOperand::CreateReg(
7054 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
7055 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7056 if (newOpc != ARM::t2RRX)
7057 TmpInst.addOperand(MCOperand::CreateImm(Amount));
7058 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7059 TmpInst.addOperand(Inst.getOperand(4));
7061 TmpInst.addOperand(MCOperand::CreateReg(
7062 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
7066 // Handle the ARM mode MOV complex aliases.
7071 ARM_AM::ShiftOpc ShiftTy;
7072 switch(Inst.getOpcode()) {
7073 default: llvm_unreachable("unexpected opcode!");
7074 case ARM::ASRr: ShiftTy = ARM_AM::asr; break;
7075 case ARM::LSRr: ShiftTy = ARM_AM::lsr; break;
7076 case ARM::LSLr: ShiftTy = ARM_AM::lsl; break;
7077 case ARM::RORr: ShiftTy = ARM_AM::ror; break;
7079 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, 0);
7081 TmpInst.setOpcode(ARM::MOVsr);
7082 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7083 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7084 TmpInst.addOperand(Inst.getOperand(2)); // Rm
7085 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7086 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7087 TmpInst.addOperand(Inst.getOperand(4));
7088 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
7096 ARM_AM::ShiftOpc ShiftTy;
7097 switch(Inst.getOpcode()) {
7098 default: llvm_unreachable("unexpected opcode!");
7099 case ARM::ASRi: ShiftTy = ARM_AM::asr; break;
7100 case ARM::LSRi: ShiftTy = ARM_AM::lsr; break;
7101 case ARM::LSLi: ShiftTy = ARM_AM::lsl; break;
7102 case ARM::RORi: ShiftTy = ARM_AM::ror; break;
7104 // A shift by zero is a plain MOVr, not a MOVsi.
7105 unsigned Amt = Inst.getOperand(2).getImm();
7106 unsigned Opc = Amt == 0 ? ARM::MOVr : ARM::MOVsi;
7107 // A shift by 32 should be encoded as 0 when permitted
7108 if (Amt == 32 && (ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr))
7110 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, Amt);
7112 TmpInst.setOpcode(Opc);
7113 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7114 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7115 if (Opc == ARM::MOVsi)
7116 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7117 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
7118 TmpInst.addOperand(Inst.getOperand(4));
7119 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
7124 unsigned Shifter = ARM_AM::getSORegOpc(ARM_AM::rrx, 0);
7126 TmpInst.setOpcode(ARM::MOVsi);
7127 TmpInst.addOperand(Inst.getOperand(0)); // Rd
7128 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7129 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
7130 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7131 TmpInst.addOperand(Inst.getOperand(3));
7132 TmpInst.addOperand(Inst.getOperand(4)); // cc_out
7136 case ARM::t2LDMIA_UPD: {
7137 // If this is a load of a single register, then we should use
7138 // a post-indexed LDR instruction instead, per the ARM ARM.
7139 if (Inst.getNumOperands() != 5)
7142 TmpInst.setOpcode(ARM::t2LDR_POST);
7143 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7144 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7145 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7146 TmpInst.addOperand(MCOperand::CreateImm(4));
7147 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7148 TmpInst.addOperand(Inst.getOperand(3));
7152 case ARM::t2STMDB_UPD: {
7153 // If this is a store of a single register, then we should use
7154 // a pre-indexed STR instruction instead, per the ARM ARM.
7155 if (Inst.getNumOperands() != 5)
7158 TmpInst.setOpcode(ARM::t2STR_PRE);
7159 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7160 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7161 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7162 TmpInst.addOperand(MCOperand::CreateImm(-4));
7163 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7164 TmpInst.addOperand(Inst.getOperand(3));
7168 case ARM::LDMIA_UPD:
7169 // If this is a load of a single register via a 'pop', then we should use
7170 // a post-indexed LDR instruction instead, per the ARM ARM.
7171 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "pop" &&
7172 Inst.getNumOperands() == 5) {
7174 TmpInst.setOpcode(ARM::LDR_POST_IMM);
7175 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7176 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7177 TmpInst.addOperand(Inst.getOperand(1)); // Rn
7178 TmpInst.addOperand(MCOperand::CreateReg(0)); // am2offset
7179 TmpInst.addOperand(MCOperand::CreateImm(4));
7180 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7181 TmpInst.addOperand(Inst.getOperand(3));
7186 case ARM::STMDB_UPD:
7187 // If this is a store of a single register via a 'push', then we should use
7188 // a pre-indexed STR instruction instead, per the ARM ARM.
7189 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "push" &&
7190 Inst.getNumOperands() == 5) {
7192 TmpInst.setOpcode(ARM::STR_PRE_IMM);
7193 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
7194 TmpInst.addOperand(Inst.getOperand(4)); // Rt
7195 TmpInst.addOperand(Inst.getOperand(1)); // addrmode_imm12
7196 TmpInst.addOperand(MCOperand::CreateImm(-4));
7197 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
7198 TmpInst.addOperand(Inst.getOperand(3));
7202 case ARM::t2ADDri12:
7203 // If the immediate fits for encoding T3 (t2ADDri) and the generic "add"
7204 // mnemonic was used (not "addw"), encoding T3 is preferred.
7205 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "add" ||
7206 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
7208 Inst.setOpcode(ARM::t2ADDri);
7209 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7211 case ARM::t2SUBri12:
7212 // If the immediate fits for encoding T3 (t2SUBri) and the generic "sub"
7213 // mnemonic was used (not "subw"), encoding T3 is preferred.
7214 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "sub" ||
7215 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
7217 Inst.setOpcode(ARM::t2SUBri);
7218 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7221 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
7222 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
7223 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
7224 // to encoding T1 if <Rd> is omitted."
7225 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
7226 Inst.setOpcode(ARM::tADDi3);
7231 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
7232 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
7233 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
7234 // to encoding T1 if <Rd> is omitted."
7235 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
7236 Inst.setOpcode(ARM::tSUBi3);
7241 case ARM::t2SUBri: {
7242 // If the destination and first source operand are the same, and
7243 // the flags are compatible with the current IT status, use encoding T2
7244 // instead of T3. For compatibility with the system 'as'. Make sure the
7245 // wide encoding wasn't explicit.
7246 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
7247 !isARMLowRegister(Inst.getOperand(0).getReg()) ||
7248 (unsigned)Inst.getOperand(2).getImm() > 255 ||
7249 ((!inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR) ||
7250 (inITBlock() && Inst.getOperand(5).getReg() != 0)) ||
7251 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7252 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
7255 TmpInst.setOpcode(Inst.getOpcode() == ARM::t2ADDri ?
7256 ARM::tADDi8 : ARM::tSUBi8);
7257 TmpInst.addOperand(Inst.getOperand(0));
7258 TmpInst.addOperand(Inst.getOperand(5));
7259 TmpInst.addOperand(Inst.getOperand(0));
7260 TmpInst.addOperand(Inst.getOperand(2));
7261 TmpInst.addOperand(Inst.getOperand(3));
7262 TmpInst.addOperand(Inst.getOperand(4));
7266 case ARM::t2ADDrr: {
7267 // If the destination and first source operand are the same, and
7268 // there's no setting of the flags, use encoding T2 instead of T3.
7269 // Note that this is only for ADD, not SUB. This mirrors the system
7270 // 'as' behaviour. Make sure the wide encoding wasn't explicit.
7271 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
7272 Inst.getOperand(5).getReg() != 0 ||
7273 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7274 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
7277 TmpInst.setOpcode(ARM::tADDhirr);
7278 TmpInst.addOperand(Inst.getOperand(0));
7279 TmpInst.addOperand(Inst.getOperand(0));
7280 TmpInst.addOperand(Inst.getOperand(2));
7281 TmpInst.addOperand(Inst.getOperand(3));
7282 TmpInst.addOperand(Inst.getOperand(4));
7286 case ARM::tADDrSP: {
7287 // If the non-SP source operand and the destination operand are not the
7288 // same, we need to use the 32-bit encoding if it's available.
7289 if (Inst.getOperand(0).getReg() != Inst.getOperand(2).getReg()) {
7290 Inst.setOpcode(ARM::t2ADDrr);
7291 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
7297 // A Thumb conditional branch outside of an IT block is a tBcc.
7298 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()) {
7299 Inst.setOpcode(ARM::tBcc);
7304 // A Thumb2 conditional branch outside of an IT block is a t2Bcc.
7305 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()){
7306 Inst.setOpcode(ARM::t2Bcc);
7311 // If the conditional is AL or we're in an IT block, we really want t2B.
7312 if (Inst.getOperand(1).getImm() == ARMCC::AL || inITBlock()) {
7313 Inst.setOpcode(ARM::t2B);
7318 // If the conditional is AL, we really want tB.
7319 if (Inst.getOperand(1).getImm() == ARMCC::AL) {
7320 Inst.setOpcode(ARM::tB);
7325 // If the register list contains any high registers, or if the writeback
7326 // doesn't match what tLDMIA can do, we need to use the 32-bit encoding
7327 // instead if we're in Thumb2. Otherwise, this should have generated
7328 // an error in validateInstruction().
7329 unsigned Rn = Inst.getOperand(0).getReg();
7330 bool hasWritebackToken =
7331 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
7332 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
7333 bool listContainsBase;
7334 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) ||
7335 (!listContainsBase && !hasWritebackToken) ||
7336 (listContainsBase && hasWritebackToken)) {
7337 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7338 assert (isThumbTwo());
7339 Inst.setOpcode(hasWritebackToken ? ARM::t2LDMIA_UPD : ARM::t2LDMIA);
7340 // If we're switching to the updating version, we need to insert
7341 // the writeback tied operand.
7342 if (hasWritebackToken)
7343 Inst.insert(Inst.begin(),
7344 MCOperand::CreateReg(Inst.getOperand(0).getReg()));
7349 case ARM::tSTMIA_UPD: {
7350 // If the register list contains any high registers, we need to use
7351 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7352 // should have generated an error in validateInstruction().
7353 unsigned Rn = Inst.getOperand(0).getReg();
7354 bool listContainsBase;
7355 if (checkLowRegisterList(Inst, 4, Rn, 0, listContainsBase)) {
7356 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7357 assert (isThumbTwo());
7358 Inst.setOpcode(ARM::t2STMIA_UPD);
7364 bool listContainsBase;
7365 // If the register list contains any high registers, we need to use
7366 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7367 // should have generated an error in validateInstruction().
7368 if (!checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase))
7370 assert (isThumbTwo());
7371 Inst.setOpcode(ARM::t2LDMIA_UPD);
7372 // Add the base register and writeback operands.
7373 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7374 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7378 bool listContainsBase;
7379 if (!checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase))
7381 assert (isThumbTwo());
7382 Inst.setOpcode(ARM::t2STMDB_UPD);
7383 // Add the base register and writeback operands.
7384 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7385 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7389 // If we can use the 16-bit encoding and the user didn't explicitly
7390 // request the 32-bit variant, transform it here.
7391 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7392 (unsigned)Inst.getOperand(1).getImm() <= 255 &&
7393 ((!inITBlock() && Inst.getOperand(2).getImm() == ARMCC::AL &&
7394 Inst.getOperand(4).getReg() == ARM::CPSR) ||
7395 (inITBlock() && Inst.getOperand(4).getReg() == 0)) &&
7396 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7397 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7398 // The operands aren't in the same order for tMOVi8...
7400 TmpInst.setOpcode(ARM::tMOVi8);
7401 TmpInst.addOperand(Inst.getOperand(0));
7402 TmpInst.addOperand(Inst.getOperand(4));
7403 TmpInst.addOperand(Inst.getOperand(1));
7404 TmpInst.addOperand(Inst.getOperand(2));
7405 TmpInst.addOperand(Inst.getOperand(3));
7412 // If we can use the 16-bit encoding and the user didn't explicitly
7413 // request the 32-bit variant, transform it here.
7414 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7415 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7416 Inst.getOperand(2).getImm() == ARMCC::AL &&
7417 Inst.getOperand(4).getReg() == ARM::CPSR &&
7418 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7419 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7420 // The operands aren't the same for tMOV[S]r... (no cc_out)
7422 TmpInst.setOpcode(Inst.getOperand(4).getReg() ? ARM::tMOVSr : ARM::tMOVr);
7423 TmpInst.addOperand(Inst.getOperand(0));
7424 TmpInst.addOperand(Inst.getOperand(1));
7425 TmpInst.addOperand(Inst.getOperand(2));
7426 TmpInst.addOperand(Inst.getOperand(3));
7436 // If we can use the 16-bit encoding and the user didn't explicitly
7437 // request the 32-bit variant, transform it here.
7438 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7439 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7440 Inst.getOperand(2).getImm() == 0 &&
7441 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7442 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7444 switch (Inst.getOpcode()) {
7445 default: llvm_unreachable("Illegal opcode!");
7446 case ARM::t2SXTH: NewOpc = ARM::tSXTH; break;
7447 case ARM::t2SXTB: NewOpc = ARM::tSXTB; break;
7448 case ARM::t2UXTH: NewOpc = ARM::tUXTH; break;
7449 case ARM::t2UXTB: NewOpc = ARM::tUXTB; break;
7451 // The operands aren't the same for thumb1 (no rotate operand).
7453 TmpInst.setOpcode(NewOpc);
7454 TmpInst.addOperand(Inst.getOperand(0));
7455 TmpInst.addOperand(Inst.getOperand(1));
7456 TmpInst.addOperand(Inst.getOperand(3));
7457 TmpInst.addOperand(Inst.getOperand(4));
7464 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(2).getImm());
7465 // rrx shifts and asr/lsr of #32 is encoded as 0
7466 if (SOpc == ARM_AM::rrx || SOpc == ARM_AM::asr || SOpc == ARM_AM::lsr)
7468 if (ARM_AM::getSORegOffset(Inst.getOperand(2).getImm()) == 0) {
7469 // Shifting by zero is accepted as a vanilla 'MOVr'
7471 TmpInst.setOpcode(ARM::MOVr);
7472 TmpInst.addOperand(Inst.getOperand(0));
7473 TmpInst.addOperand(Inst.getOperand(1));
7474 TmpInst.addOperand(Inst.getOperand(3));
7475 TmpInst.addOperand(Inst.getOperand(4));
7476 TmpInst.addOperand(Inst.getOperand(5));
7489 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(3).getImm());
7490 if (SOpc == ARM_AM::rrx) return false;
7491 switch (Inst.getOpcode()) {
7492 default: llvm_unreachable("unexpected opcode!");
7493 case ARM::ANDrsi: newOpc = ARM::ANDrr; break;
7494 case ARM::ORRrsi: newOpc = ARM::ORRrr; break;
7495 case ARM::EORrsi: newOpc = ARM::EORrr; break;
7496 case ARM::BICrsi: newOpc = ARM::BICrr; break;
7497 case ARM::SUBrsi: newOpc = ARM::SUBrr; break;
7498 case ARM::ADDrsi: newOpc = ARM::ADDrr; break;
7500 // If the shift is by zero, use the non-shifted instruction definition.
7501 // The exception is for right shifts, where 0 == 32
7502 if (ARM_AM::getSORegOffset(Inst.getOperand(3).getImm()) == 0 &&
7503 !(SOpc == ARM_AM::lsr || SOpc == ARM_AM::asr)) {
7505 TmpInst.setOpcode(newOpc);
7506 TmpInst.addOperand(Inst.getOperand(0));
7507 TmpInst.addOperand(Inst.getOperand(1));
7508 TmpInst.addOperand(Inst.getOperand(2));
7509 TmpInst.addOperand(Inst.getOperand(4));
7510 TmpInst.addOperand(Inst.getOperand(5));
7511 TmpInst.addOperand(Inst.getOperand(6));
7519 // The mask bits for all but the first condition are represented as
7520 // the low bit of the condition code value implies 't'. We currently
7521 // always have 1 implies 't', so XOR toggle the bits if the low bit
7522 // of the condition code is zero.
7523 MCOperand &MO = Inst.getOperand(1);
7524 unsigned Mask = MO.getImm();
7525 unsigned OrigMask = Mask;
7526 unsigned TZ = countTrailingZeros(Mask);
7527 if ((Inst.getOperand(0).getImm() & 1) == 0) {
7528 assert(Mask && TZ <= 3 && "illegal IT mask value!");
7529 Mask ^= (0xE << TZ) & 0xF;
7533 // Set up the IT block state according to the IT instruction we just
7535 assert(!inITBlock() && "nested IT blocks?!");
7536 ITState.Cond = ARMCC::CondCodes(Inst.getOperand(0).getImm());
7537 ITState.Mask = OrigMask; // Use the original mask, not the updated one.
7538 ITState.CurPosition = 0;
7539 ITState.FirstCond = true;
7549 // Assemblers should use the narrow encodings of these instructions when permissible.
7550 if ((isARMLowRegister(Inst.getOperand(1).getReg()) &&
7551 isARMLowRegister(Inst.getOperand(2).getReg())) &&
7552 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
7553 ((!inITBlock() && Inst.getOperand(5).getReg() == ARM::CPSR) ||
7554 (inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR)) &&
7555 (!static_cast<ARMOperand*>(Operands[3])->isToken() ||
7556 !static_cast<ARMOperand*>(Operands[3])->getToken().equals_lower(".w"))) {
7558 switch (Inst.getOpcode()) {
7559 default: llvm_unreachable("unexpected opcode");
7560 case ARM::t2LSLrr: NewOpc = ARM::tLSLrr; break;
7561 case ARM::t2LSRrr: NewOpc = ARM::tLSRrr; break;
7562 case ARM::t2ASRrr: NewOpc = ARM::tASRrr; break;
7563 case ARM::t2SBCrr: NewOpc = ARM::tSBC; break;
7564 case ARM::t2RORrr: NewOpc = ARM::tROR; break;
7565 case ARM::t2BICrr: NewOpc = ARM::tBIC; break;
7568 TmpInst.setOpcode(NewOpc);
7569 TmpInst.addOperand(Inst.getOperand(0));
7570 TmpInst.addOperand(Inst.getOperand(5));
7571 TmpInst.addOperand(Inst.getOperand(1));
7572 TmpInst.addOperand(Inst.getOperand(2));
7573 TmpInst.addOperand(Inst.getOperand(3));
7574 TmpInst.addOperand(Inst.getOperand(4));
7585 // Assemblers should use the narrow encodings of these instructions when permissible.
7586 // These instructions are special in that they are commutable, so shorter encodings
7587 // are available more often.
7588 if ((isARMLowRegister(Inst.getOperand(1).getReg()) &&
7589 isARMLowRegister(Inst.getOperand(2).getReg())) &&
7590 (Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() ||
7591 Inst.getOperand(0).getReg() == Inst.getOperand(2).getReg()) &&
7592 ((!inITBlock() && Inst.getOperand(5).getReg() == ARM::CPSR) ||
7593 (inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR)) &&
7594 (!static_cast<ARMOperand*>(Operands[3])->isToken() ||
7595 !static_cast<ARMOperand*>(Operands[3])->getToken().equals_lower(".w"))) {
7597 switch (Inst.getOpcode()) {
7598 default: llvm_unreachable("unexpected opcode");
7599 case ARM::t2ADCrr: NewOpc = ARM::tADC; break;
7600 case ARM::t2ANDrr: NewOpc = ARM::tAND; break;
7601 case ARM::t2EORrr: NewOpc = ARM::tEOR; break;
7602 case ARM::t2ORRrr: NewOpc = ARM::tORR; break;
7605 TmpInst.setOpcode(NewOpc);
7606 TmpInst.addOperand(Inst.getOperand(0));
7607 TmpInst.addOperand(Inst.getOperand(5));
7608 if (Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg()) {
7609 TmpInst.addOperand(Inst.getOperand(1));
7610 TmpInst.addOperand(Inst.getOperand(2));
7612 TmpInst.addOperand(Inst.getOperand(2));
7613 TmpInst.addOperand(Inst.getOperand(1));
7615 TmpInst.addOperand(Inst.getOperand(3));
7616 TmpInst.addOperand(Inst.getOperand(4));
7626 unsigned ARMAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
7627 // 16-bit thumb arithmetic instructions either require or preclude the 'S'
7628 // suffix depending on whether they're in an IT block or not.
7629 unsigned Opc = Inst.getOpcode();
7630 const MCInstrDesc &MCID = getInstDesc(Opc);
7631 if (MCID.TSFlags & ARMII::ThumbArithFlagSetting) {
7632 assert(MCID.hasOptionalDef() &&
7633 "optionally flag setting instruction missing optional def operand");
7634 assert(MCID.NumOperands == Inst.getNumOperands() &&
7635 "operand count mismatch!");
7636 // Find the optional-def operand (cc_out).
7639 !MCID.OpInfo[OpNo].isOptionalDef() && OpNo < MCID.NumOperands;
7642 // If we're parsing Thumb1, reject it completely.
7643 if (isThumbOne() && Inst.getOperand(OpNo).getReg() != ARM::CPSR)
7644 return Match_MnemonicFail;
7645 // If we're parsing Thumb2, which form is legal depends on whether we're
7647 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() != ARM::CPSR &&
7649 return Match_RequiresITBlock;
7650 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() == ARM::CPSR &&
7652 return Match_RequiresNotITBlock;
7654 // Some high-register supporting Thumb1 encodings only allow both registers
7655 // to be from r0-r7 when in Thumb2.
7656 else if (Opc == ARM::tADDhirr && isThumbOne() &&
7657 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7658 isARMLowRegister(Inst.getOperand(2).getReg()))
7659 return Match_RequiresThumb2;
7660 // Others only require ARMv6 or later.
7661 else if (Opc == ARM::tMOVr && isThumbOne() && !hasV6Ops() &&
7662 isARMLowRegister(Inst.getOperand(0).getReg()) &&
7663 isARMLowRegister(Inst.getOperand(1).getReg()))
7664 return Match_RequiresV6;
7665 return Match_Success;
7668 static const char *getSubtargetFeatureName(unsigned Val);
7670 MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
7671 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
7672 MCStreamer &Out, unsigned &ErrorInfo,
7673 bool MatchingInlineAsm) {
7675 unsigned MatchResult;
7677 MatchResult = MatchInstructionImpl(Operands, Inst, ErrorInfo,
7679 switch (MatchResult) {
7682 // Context sensitive operand constraints aren't handled by the matcher,
7683 // so check them here.
7684 if (validateInstruction(Inst, Operands)) {
7685 // Still progress the IT block, otherwise one wrong condition causes
7686 // nasty cascading errors.
7687 forwardITPosition();
7691 // Some instructions need post-processing to, for example, tweak which
7692 // encoding is selected. Loop on it while changes happen so the
7693 // individual transformations can chain off each other. E.g.,
7694 // tPOP(r8)->t2LDMIA_UPD(sp,r8)->t2STR_POST(sp,r8)
7695 while (processInstruction(Inst, Operands))
7698 // Only move forward at the very end so that everything in validate
7699 // and process gets a consistent answer about whether we're in an IT
7701 forwardITPosition();
7703 // ITasm is an ARM mode pseudo-instruction that just sets the ITblock and
7704 // doesn't actually encode.
7705 if (Inst.getOpcode() == ARM::ITasm)
7709 Out.EmitInstruction(Inst);
7711 case Match_MissingFeature: {
7712 assert(ErrorInfo && "Unknown missing feature!");
7713 // Special case the error message for the very common case where only
7714 // a single subtarget feature is missing (Thumb vs. ARM, e.g.).
7715 std::string Msg = "instruction requires:";
7717 for (unsigned i = 0; i < (sizeof(ErrorInfo)*8-1); ++i) {
7718 if (ErrorInfo & Mask) {
7720 Msg += getSubtargetFeatureName(ErrorInfo & Mask);
7724 return Error(IDLoc, Msg);
7726 case Match_InvalidOperand: {
7727 SMLoc ErrorLoc = IDLoc;
7728 if (ErrorInfo != ~0U) {
7729 if (ErrorInfo >= Operands.size())
7730 return Error(IDLoc, "too few operands for instruction");
7732 ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7733 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7736 return Error(ErrorLoc, "invalid operand for instruction");
7738 case Match_MnemonicFail:
7739 return Error(IDLoc, "invalid instruction",
7740 ((ARMOperand*)Operands[0])->getLocRange());
7741 case Match_RequiresNotITBlock:
7742 return Error(IDLoc, "flag setting instruction only valid outside IT block");
7743 case Match_RequiresITBlock:
7744 return Error(IDLoc, "instruction only valid inside IT block");
7745 case Match_RequiresV6:
7746 return Error(IDLoc, "instruction variant requires ARMv6 or later");
7747 case Match_RequiresThumb2:
7748 return Error(IDLoc, "instruction variant requires Thumb2");
7749 case Match_ImmRange0_4: {
7750 SMLoc ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7751 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7752 return Error(ErrorLoc, "immediate operand must be in the range [0,4]");
7754 case Match_ImmRange0_15: {
7755 SMLoc ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7756 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7757 return Error(ErrorLoc, "immediate operand must be in the range [0,15]");
7761 llvm_unreachable("Implement any new match types added!");
7764 /// parseDirective parses the arm specific directives
7765 bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) {
7766 StringRef IDVal = DirectiveID.getIdentifier();
7767 if (IDVal == ".word")
7768 return parseDirectiveWord(4, DirectiveID.getLoc());
7769 else if (IDVal == ".thumb")
7770 return parseDirectiveThumb(DirectiveID.getLoc());
7771 else if (IDVal == ".arm")
7772 return parseDirectiveARM(DirectiveID.getLoc());
7773 else if (IDVal == ".thumb_func")
7774 return parseDirectiveThumbFunc(DirectiveID.getLoc());
7775 else if (IDVal == ".code")
7776 return parseDirectiveCode(DirectiveID.getLoc());
7777 else if (IDVal == ".syntax")
7778 return parseDirectiveSyntax(DirectiveID.getLoc());
7779 else if (IDVal == ".unreq")
7780 return parseDirectiveUnreq(DirectiveID.getLoc());
7781 else if (IDVal == ".arch")
7782 return parseDirectiveArch(DirectiveID.getLoc());
7783 else if (IDVal == ".eabi_attribute")
7784 return parseDirectiveEabiAttr(DirectiveID.getLoc());
7785 else if (IDVal == ".fnstart")
7786 return parseDirectiveFnStart(DirectiveID.getLoc());
7787 else if (IDVal == ".fnend")
7788 return parseDirectiveFnEnd(DirectiveID.getLoc());
7789 else if (IDVal == ".cantunwind")
7790 return parseDirectiveCantUnwind(DirectiveID.getLoc());
7791 else if (IDVal == ".personality")
7792 return parseDirectivePersonality(DirectiveID.getLoc());
7793 else if (IDVal == ".handlerdata")
7794 return parseDirectiveHandlerData(DirectiveID.getLoc());
7795 else if (IDVal == ".setfp")
7796 return parseDirectiveSetFP(DirectiveID.getLoc());
7797 else if (IDVal == ".pad")
7798 return parseDirectivePad(DirectiveID.getLoc());
7799 else if (IDVal == ".save")
7800 return parseDirectiveRegSave(DirectiveID.getLoc(), false);
7801 else if (IDVal == ".vsave")
7802 return parseDirectiveRegSave(DirectiveID.getLoc(), true);
7806 /// parseDirectiveWord
7807 /// ::= .word [ expression (, expression)* ]
7808 bool ARMAsmParser::parseDirectiveWord(unsigned Size, SMLoc L) {
7809 if (getLexer().isNot(AsmToken::EndOfStatement)) {
7811 const MCExpr *Value;
7812 if (getParser().parseExpression(Value))
7815 getParser().getStreamer().EmitValue(Value, Size);
7817 if (getLexer().is(AsmToken::EndOfStatement))
7820 // FIXME: Improve diagnostic.
7821 if (getLexer().isNot(AsmToken::Comma))
7822 return Error(L, "unexpected token in directive");
7831 /// parseDirectiveThumb
7833 bool ARMAsmParser::parseDirectiveThumb(SMLoc L) {
7834 if (getLexer().isNot(AsmToken::EndOfStatement))
7835 return Error(L, "unexpected token in directive");
7839 return Error(L, "target does not support Thumb mode");
7843 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
7847 /// parseDirectiveARM
7849 bool ARMAsmParser::parseDirectiveARM(SMLoc L) {
7850 if (getLexer().isNot(AsmToken::EndOfStatement))
7851 return Error(L, "unexpected token in directive");
7855 return Error(L, "target does not support ARM mode");
7859 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
7863 /// parseDirectiveThumbFunc
7864 /// ::= .thumbfunc symbol_name
7865 bool ARMAsmParser::parseDirectiveThumbFunc(SMLoc L) {
7866 const MCAsmInfo *MAI = getParser().getStreamer().getContext().getAsmInfo();
7867 bool isMachO = MAI->hasSubsectionsViaSymbols();
7869 bool needFuncName = true;
7871 // Darwin asm has (optionally) function name after .thumb_func direction
7874 const AsmToken &Tok = Parser.getTok();
7875 if (Tok.isNot(AsmToken::EndOfStatement)) {
7876 if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String))
7877 return Error(L, "unexpected token in .thumb_func directive");
7878 Name = Tok.getIdentifier();
7879 Parser.Lex(); // Consume the identifier token.
7880 needFuncName = false;
7884 if (getLexer().isNot(AsmToken::EndOfStatement))
7885 return Error(L, "unexpected token in directive");
7887 // Eat the end of statement and any blank lines that follow.
7888 while (getLexer().is(AsmToken::EndOfStatement))
7891 // FIXME: assuming function name will be the line following .thumb_func
7892 // We really should be checking the next symbol definition even if there's
7893 // stuff in between.
7895 Name = Parser.getTok().getIdentifier();
7898 // Mark symbol as a thumb symbol.
7899 MCSymbol *Func = getParser().getContext().GetOrCreateSymbol(Name);
7900 getParser().getStreamer().EmitThumbFunc(Func);
7904 /// parseDirectiveSyntax
7905 /// ::= .syntax unified | divided
7906 bool ARMAsmParser::parseDirectiveSyntax(SMLoc L) {
7907 const AsmToken &Tok = Parser.getTok();
7908 if (Tok.isNot(AsmToken::Identifier))
7909 return Error(L, "unexpected token in .syntax directive");
7910 StringRef Mode = Tok.getString();
7911 if (Mode == "unified" || Mode == "UNIFIED")
7913 else if (Mode == "divided" || Mode == "DIVIDED")
7914 return Error(L, "'.syntax divided' arm asssembly not supported");
7916 return Error(L, "unrecognized syntax mode in .syntax directive");
7918 if (getLexer().isNot(AsmToken::EndOfStatement))
7919 return Error(Parser.getTok().getLoc(), "unexpected token in directive");
7922 // TODO tell the MC streamer the mode
7923 // getParser().getStreamer().Emit???();
7927 /// parseDirectiveCode
7928 /// ::= .code 16 | 32
7929 bool ARMAsmParser::parseDirectiveCode(SMLoc L) {
7930 const AsmToken &Tok = Parser.getTok();
7931 if (Tok.isNot(AsmToken::Integer))
7932 return Error(L, "unexpected token in .code directive");
7933 int64_t Val = Parser.getTok().getIntVal();
7939 return Error(L, "invalid operand to .code directive");
7941 if (getLexer().isNot(AsmToken::EndOfStatement))
7942 return Error(Parser.getTok().getLoc(), "unexpected token in directive");
7947 return Error(L, "target does not support Thumb mode");
7951 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
7954 return Error(L, "target does not support ARM mode");
7958 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
7964 /// parseDirectiveReq
7965 /// ::= name .req registername
7966 bool ARMAsmParser::parseDirectiveReq(StringRef Name, SMLoc L) {
7967 Parser.Lex(); // Eat the '.req' token.
7969 SMLoc SRegLoc, ERegLoc;
7970 if (ParseRegister(Reg, SRegLoc, ERegLoc)) {
7971 Parser.eatToEndOfStatement();
7972 return Error(SRegLoc, "register name expected");
7975 // Shouldn't be anything else.
7976 if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
7977 Parser.eatToEndOfStatement();
7978 return Error(Parser.getTok().getLoc(),
7979 "unexpected input in .req directive.");
7982 Parser.Lex(); // Consume the EndOfStatement
7984 if (RegisterReqs.GetOrCreateValue(Name, Reg).getValue() != Reg)
7985 return Error(SRegLoc, "redefinition of '" + Name +
7986 "' does not match original.");
7991 /// parseDirectiveUneq
7992 /// ::= .unreq registername
7993 bool ARMAsmParser::parseDirectiveUnreq(SMLoc L) {
7994 if (Parser.getTok().isNot(AsmToken::Identifier)) {
7995 Parser.eatToEndOfStatement();
7996 return Error(L, "unexpected input in .unreq directive.");
7998 RegisterReqs.erase(Parser.getTok().getIdentifier());
7999 Parser.Lex(); // Eat the identifier.
8003 /// parseDirectiveArch
8005 bool ARMAsmParser::parseDirectiveArch(SMLoc L) {
8009 /// parseDirectiveEabiAttr
8010 /// ::= .eabi_attribute int, int
8011 bool ARMAsmParser::parseDirectiveEabiAttr(SMLoc L) {
8015 /// parseDirectiveFnStart
8017 bool ARMAsmParser::parseDirectiveFnStart(SMLoc L) {
8018 if (FnStartLoc.isValid()) {
8019 Error(L, ".fnstart starts before the end of previous one");
8020 Error(FnStartLoc, "previous .fnstart starts here");
8025 getParser().getStreamer().EmitFnStart();
8029 /// parseDirectiveFnEnd
8031 bool ARMAsmParser::parseDirectiveFnEnd(SMLoc L) {
8032 // Check the ordering of unwind directives
8033 if (!FnStartLoc.isValid())
8034 return Error(L, ".fnstart must precede .fnend directive");
8036 // Reset the unwind directives parser state
8037 resetUnwindDirectiveParserState();
8039 getParser().getStreamer().EmitFnEnd();
8043 /// parseDirectiveCantUnwind
8045 bool ARMAsmParser::parseDirectiveCantUnwind(SMLoc L) {
8046 // Check the ordering of unwind directives
8048 if (!FnStartLoc.isValid())
8049 return Error(L, ".fnstart must precede .cantunwind directive");
8050 if (HandlerDataLoc.isValid()) {
8051 Error(L, ".cantunwind can't be used with .handlerdata directive");
8052 Error(HandlerDataLoc, ".handlerdata was specified here");
8055 if (PersonalityLoc.isValid()) {
8056 Error(L, ".cantunwind can't be used with .personality directive");
8057 Error(PersonalityLoc, ".personality was specified here");
8061 getParser().getStreamer().EmitCantUnwind();
8065 /// parseDirectivePersonality
8066 /// ::= .personality name
8067 bool ARMAsmParser::parseDirectivePersonality(SMLoc L) {
8068 // Check the ordering of unwind directives
8070 if (!FnStartLoc.isValid())
8071 return Error(L, ".fnstart must precede .personality directive");
8072 if (CantUnwindLoc.isValid()) {
8073 Error(L, ".personality can't be used with .cantunwind directive");
8074 Error(CantUnwindLoc, ".cantunwind was specified here");
8077 if (HandlerDataLoc.isValid()) {
8078 Error(L, ".personality must precede .handlerdata directive");
8079 Error(HandlerDataLoc, ".handlerdata was specified here");
8083 // Parse the name of the personality routine
8084 if (Parser.getTok().isNot(AsmToken::Identifier)) {
8085 Parser.eatToEndOfStatement();
8086 return Error(L, "unexpected input in .personality directive.");
8088 StringRef Name(Parser.getTok().getIdentifier());
8091 MCSymbol *PR = getParser().getContext().GetOrCreateSymbol(Name);
8092 getParser().getStreamer().EmitPersonality(PR);
8096 /// parseDirectiveHandlerData
8097 /// ::= .handlerdata
8098 bool ARMAsmParser::parseDirectiveHandlerData(SMLoc L) {
8099 // Check the ordering of unwind directives
8101 if (!FnStartLoc.isValid())
8102 return Error(L, ".fnstart must precede .personality directive");
8103 if (CantUnwindLoc.isValid()) {
8104 Error(L, ".handlerdata can't be used with .cantunwind directive");
8105 Error(CantUnwindLoc, ".cantunwind was specified here");
8109 getParser().getStreamer().EmitHandlerData();
8113 /// parseDirectiveSetFP
8114 /// ::= .setfp fpreg, spreg [, offset]
8115 bool ARMAsmParser::parseDirectiveSetFP(SMLoc L) {
8116 // Check the ordering of unwind directives
8117 if (!FnStartLoc.isValid())
8118 return Error(L, ".fnstart must precede .setfp directive");
8119 if (HandlerDataLoc.isValid())
8120 return Error(L, ".setfp must precede .handlerdata directive");
8123 SMLoc NewFPRegLoc = Parser.getTok().getLoc();
8124 int NewFPReg = tryParseRegister();
8126 return Error(NewFPRegLoc, "frame pointer register expected");
8129 if (!Parser.getTok().is(AsmToken::Comma))
8130 return Error(Parser.getTok().getLoc(), "comma expected");
8131 Parser.Lex(); // skip comma
8134 SMLoc NewSPRegLoc = Parser.getTok().getLoc();
8135 int NewSPReg = tryParseRegister();
8137 return Error(NewSPRegLoc, "stack pointer register expected");
8139 if (NewSPReg != ARM::SP && NewSPReg != FPReg)
8140 return Error(NewSPRegLoc,
8141 "register should be either $sp or the latest fp register");
8143 // Update the frame pointer register
8148 if (Parser.getTok().is(AsmToken::Comma)) {
8149 Parser.Lex(); // skip comma
8151 if (Parser.getTok().isNot(AsmToken::Hash) &&
8152 Parser.getTok().isNot(AsmToken::Dollar)) {
8153 return Error(Parser.getTok().getLoc(), "'#' expected");
8155 Parser.Lex(); // skip hash token.
8157 const MCExpr *OffsetExpr;
8158 SMLoc ExLoc = Parser.getTok().getLoc();
8160 if (getParser().parseExpression(OffsetExpr, EndLoc))
8161 return Error(ExLoc, "malformed setfp offset");
8162 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8164 return Error(ExLoc, "setfp offset must be an immediate");
8166 Offset = CE->getValue();
8169 getParser().getStreamer().EmitSetFP(static_cast<unsigned>(NewFPReg),
8170 static_cast<unsigned>(NewSPReg),
8177 bool ARMAsmParser::parseDirectivePad(SMLoc L) {
8178 // Check the ordering of unwind directives
8179 if (!FnStartLoc.isValid())
8180 return Error(L, ".fnstart must precede .pad directive");
8181 if (HandlerDataLoc.isValid())
8182 return Error(L, ".pad must precede .handlerdata directive");
8185 if (Parser.getTok().isNot(AsmToken::Hash) &&
8186 Parser.getTok().isNot(AsmToken::Dollar)) {
8187 return Error(Parser.getTok().getLoc(), "'#' expected");
8189 Parser.Lex(); // skip hash token.
8191 const MCExpr *OffsetExpr;
8192 SMLoc ExLoc = Parser.getTok().getLoc();
8194 if (getParser().parseExpression(OffsetExpr, EndLoc))
8195 return Error(ExLoc, "malformed pad offset");
8196 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(OffsetExpr);
8198 return Error(ExLoc, "pad offset must be an immediate");
8200 getParser().getStreamer().EmitPad(CE->getValue());
8204 /// parseDirectiveRegSave
8205 /// ::= .save { registers }
8206 /// ::= .vsave { registers }
8207 bool ARMAsmParser::parseDirectiveRegSave(SMLoc L, bool IsVector) {
8208 // Check the ordering of unwind directives
8209 if (!FnStartLoc.isValid())
8210 return Error(L, ".fnstart must precede .save or .vsave directives");
8211 if (HandlerDataLoc.isValid())
8212 return Error(L, ".save or .vsave must precede .handlerdata directive");
8214 // Parse the register list
8215 SmallVector<MCParsedAsmOperand*, 1> Operands;
8216 if (parseRegisterList(Operands))
8218 ARMOperand *Op = (ARMOperand*)Operands[0];
8219 if (!IsVector && !Op->isRegList())
8220 return Error(L, ".save expects GPR registers");
8221 if (IsVector && !Op->isDPRRegList())
8222 return Error(L, ".vsave expects DPR registers");
8224 getParser().getStreamer().EmitRegSave(Op->getRegList(), IsVector);
8228 /// Force static initialization.
8229 extern "C" void LLVMInitializeARMAsmParser() {
8230 RegisterMCAsmParser<ARMAsmParser> X(TheARMTarget);
8231 RegisterMCAsmParser<ARMAsmParser> Y(TheThumbTarget);
8234 #define GET_REGISTER_MATCHER
8235 #define GET_SUBTARGET_FEATURE_NAME
8236 #define GET_MATCHER_IMPLEMENTATION
8237 #include "ARMGenAsmMatcher.inc"
8239 // Define this matcher function after the auto-generated include so we
8240 // have the match class enum definitions.
8241 unsigned ARMAsmParser::validateTargetOperandClass(MCParsedAsmOperand *AsmOp,
8243 ARMOperand *Op = static_cast<ARMOperand*>(AsmOp);
8244 // If the kind is a token for a literal immediate, check if our asm
8245 // operand matches. This is for InstAliases which have a fixed-value
8246 // immediate in the syntax.
8247 if (Kind == MCK__35_0 && Op->isImm()) {
8248 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
8250 return Match_InvalidOperand;
8251 if (CE->getValue() == 0)
8252 return Match_Success;
8254 return Match_InvalidOperand;