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 "MCTargetDesc/ARMBaseInfo.h"
11 #include "MCTargetDesc/ARMAddressingModes.h"
12 #include "MCTargetDesc/ARMMCExpr.h"
13 #include "llvm/MC/MCParser/MCAsmLexer.h"
14 #include "llvm/MC/MCParser/MCAsmParser.h"
15 #include "llvm/MC/MCParser/MCParsedAsmOperand.h"
16 #include "llvm/MC/MCAsmInfo.h"
17 #include "llvm/MC/MCContext.h"
18 #include "llvm/MC/MCStreamer.h"
19 #include "llvm/MC/MCExpr.h"
20 #include "llvm/MC/MCInst.h"
21 #include "llvm/MC/MCInstrDesc.h"
22 #include "llvm/MC/MCRegisterInfo.h"
23 #include "llvm/MC/MCSubtargetInfo.h"
24 #include "llvm/MC/MCTargetAsmParser.h"
25 #include "llvm/Support/MathExtras.h"
26 #include "llvm/Support/SourceMgr.h"
27 #include "llvm/Support/TargetRegistry.h"
28 #include "llvm/Support/raw_ostream.h"
29 #include "llvm/ADT/BitVector.h"
30 #include "llvm/ADT/OwningPtr.h"
31 #include "llvm/ADT/STLExtras.h"
32 #include "llvm/ADT/SmallVector.h"
33 #include "llvm/ADT/StringSwitch.h"
34 #include "llvm/ADT/Twine.h"
42 enum VectorLaneTy { NoLanes, AllLanes, IndexedLane };
44 class ARMAsmParser : public MCTargetAsmParser {
47 const MCRegisterInfo *MRI;
49 // Map of register aliases registers via the .req directive.
50 StringMap<unsigned> RegisterReqs;
53 ARMCC::CondCodes Cond; // Condition for IT block.
54 unsigned Mask:4; // Condition mask for instructions.
55 // Starting at first 1 (from lsb).
56 // '1' condition as indicated in IT.
57 // '0' inverse of condition (else).
58 // Count of instructions in IT block is
59 // 4 - trailingzeroes(mask)
61 bool FirstCond; // Explicit flag for when we're parsing the
62 // First instruction in the IT block. It's
63 // implied in the mask, so needs special
66 unsigned CurPosition; // Current position in parsing of IT
67 // block. In range [0,3]. Initialized
68 // according to count of instructions in block.
69 // ~0U if no active IT block.
71 bool inITBlock() { return ITState.CurPosition != ~0U;}
72 void forwardITPosition() {
73 if (!inITBlock()) return;
74 // Move to the next instruction in the IT block, if there is one. If not,
75 // mark the block as done.
76 unsigned TZ = CountTrailingZeros_32(ITState.Mask);
77 if (++ITState.CurPosition == 5 - TZ)
78 ITState.CurPosition = ~0U; // Done with the IT block after this.
82 MCAsmParser &getParser() const { return Parser; }
83 MCAsmLexer &getLexer() const { return Parser.getLexer(); }
85 void Warning(SMLoc L, const Twine &Msg) { Parser.Warning(L, Msg); }
86 bool Error(SMLoc L, const Twine &Msg) { return Parser.Error(L, Msg); }
88 int tryParseRegister();
89 bool tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &);
90 int tryParseShiftRegister(SmallVectorImpl<MCParsedAsmOperand*> &);
91 bool parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &);
92 bool parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &);
93 bool parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &, StringRef Mnemonic);
94 bool parsePrefix(ARMMCExpr::VariantKind &RefKind);
95 bool parseMemRegOffsetShift(ARM_AM::ShiftOpc &ShiftType,
96 unsigned &ShiftAmount);
97 bool parseDirectiveWord(unsigned Size, SMLoc L);
98 bool parseDirectiveThumb(SMLoc L);
99 bool parseDirectiveARM(SMLoc L);
100 bool parseDirectiveThumbFunc(SMLoc L);
101 bool parseDirectiveCode(SMLoc L);
102 bool parseDirectiveSyntax(SMLoc L);
103 bool parseDirectiveReq(StringRef Name, SMLoc L);
104 bool parseDirectiveUnreq(SMLoc L);
105 bool parseDirectiveArch(SMLoc L);
106 bool parseDirectiveEabiAttr(SMLoc L);
108 StringRef splitMnemonic(StringRef Mnemonic, unsigned &PredicationCode,
109 bool &CarrySetting, unsigned &ProcessorIMod,
111 void getMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
112 bool &CanAcceptPredicationCode);
114 bool isThumb() const {
115 // FIXME: Can tablegen auto-generate this?
116 return (STI.getFeatureBits() & ARM::ModeThumb) != 0;
118 bool isThumbOne() const {
119 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2) == 0;
121 bool isThumbTwo() const {
122 return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2);
124 bool hasV6Ops() const {
125 return STI.getFeatureBits() & ARM::HasV6Ops;
127 bool hasV7Ops() const {
128 return STI.getFeatureBits() & ARM::HasV7Ops;
131 unsigned FB = ComputeAvailableFeatures(STI.ToggleFeature(ARM::ModeThumb));
132 setAvailableFeatures(FB);
134 bool isMClass() const {
135 return STI.getFeatureBits() & ARM::FeatureMClass;
138 /// @name Auto-generated Match Functions
141 #define GET_ASSEMBLER_HEADER
142 #include "ARMGenAsmMatcher.inc"
146 OperandMatchResultTy parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*>&);
147 OperandMatchResultTy parseCoprocNumOperand(
148 SmallVectorImpl<MCParsedAsmOperand*>&);
149 OperandMatchResultTy parseCoprocRegOperand(
150 SmallVectorImpl<MCParsedAsmOperand*>&);
151 OperandMatchResultTy parseCoprocOptionOperand(
152 SmallVectorImpl<MCParsedAsmOperand*>&);
153 OperandMatchResultTy parseMemBarrierOptOperand(
154 SmallVectorImpl<MCParsedAsmOperand*>&);
155 OperandMatchResultTy parseProcIFlagsOperand(
156 SmallVectorImpl<MCParsedAsmOperand*>&);
157 OperandMatchResultTy parseMSRMaskOperand(
158 SmallVectorImpl<MCParsedAsmOperand*>&);
159 OperandMatchResultTy parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &O,
160 StringRef Op, int Low, int High);
161 OperandMatchResultTy parsePKHLSLImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
162 return parsePKHImm(O, "lsl", 0, 31);
164 OperandMatchResultTy parsePKHASRImm(SmallVectorImpl<MCParsedAsmOperand*> &O) {
165 return parsePKHImm(O, "asr", 1, 32);
167 OperandMatchResultTy parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*>&);
168 OperandMatchResultTy parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*>&);
169 OperandMatchResultTy parseRotImm(SmallVectorImpl<MCParsedAsmOperand*>&);
170 OperandMatchResultTy parseBitfield(SmallVectorImpl<MCParsedAsmOperand*>&);
171 OperandMatchResultTy parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*>&);
172 OperandMatchResultTy parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*>&);
173 OperandMatchResultTy parseFPImm(SmallVectorImpl<MCParsedAsmOperand*>&);
174 OperandMatchResultTy parseVectorList(SmallVectorImpl<MCParsedAsmOperand*>&);
175 OperandMatchResultTy parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index);
177 // Asm Match Converter Methods
178 bool cvtT2LdrdPre(MCInst &Inst, unsigned Opcode,
179 const SmallVectorImpl<MCParsedAsmOperand*> &);
180 bool cvtT2StrdPre(MCInst &Inst, unsigned Opcode,
181 const SmallVectorImpl<MCParsedAsmOperand*> &);
182 bool cvtLdWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
183 const SmallVectorImpl<MCParsedAsmOperand*> &);
184 bool cvtStWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
185 const SmallVectorImpl<MCParsedAsmOperand*> &);
186 bool cvtLdWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
187 const SmallVectorImpl<MCParsedAsmOperand*> &);
188 bool cvtLdWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
189 const SmallVectorImpl<MCParsedAsmOperand*> &);
190 bool cvtStWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
191 const SmallVectorImpl<MCParsedAsmOperand*> &);
192 bool cvtStWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
193 const SmallVectorImpl<MCParsedAsmOperand*> &);
194 bool cvtStWriteBackRegAddrMode3(MCInst &Inst, unsigned Opcode,
195 const SmallVectorImpl<MCParsedAsmOperand*> &);
196 bool cvtLdExtTWriteBackImm(MCInst &Inst, unsigned Opcode,
197 const SmallVectorImpl<MCParsedAsmOperand*> &);
198 bool cvtLdExtTWriteBackReg(MCInst &Inst, unsigned Opcode,
199 const SmallVectorImpl<MCParsedAsmOperand*> &);
200 bool cvtStExtTWriteBackImm(MCInst &Inst, unsigned Opcode,
201 const SmallVectorImpl<MCParsedAsmOperand*> &);
202 bool cvtStExtTWriteBackReg(MCInst &Inst, unsigned Opcode,
203 const SmallVectorImpl<MCParsedAsmOperand*> &);
204 bool cvtLdrdPre(MCInst &Inst, unsigned Opcode,
205 const SmallVectorImpl<MCParsedAsmOperand*> &);
206 bool cvtStrdPre(MCInst &Inst, unsigned Opcode,
207 const SmallVectorImpl<MCParsedAsmOperand*> &);
208 bool cvtLdWriteBackRegAddrMode3(MCInst &Inst, unsigned Opcode,
209 const SmallVectorImpl<MCParsedAsmOperand*> &);
210 bool cvtThumbMultiply(MCInst &Inst, unsigned Opcode,
211 const SmallVectorImpl<MCParsedAsmOperand*> &);
212 bool cvtVLDwbFixed(MCInst &Inst, unsigned Opcode,
213 const SmallVectorImpl<MCParsedAsmOperand*> &);
214 bool cvtVLDwbRegister(MCInst &Inst, unsigned Opcode,
215 const SmallVectorImpl<MCParsedAsmOperand*> &);
216 bool cvtVSTwbFixed(MCInst &Inst, unsigned Opcode,
217 const SmallVectorImpl<MCParsedAsmOperand*> &);
218 bool cvtVSTwbRegister(MCInst &Inst, unsigned Opcode,
219 const SmallVectorImpl<MCParsedAsmOperand*> &);
221 bool validateInstruction(MCInst &Inst,
222 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
223 bool processInstruction(MCInst &Inst,
224 const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
225 bool shouldOmitCCOutOperand(StringRef Mnemonic,
226 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
229 enum ARMMatchResultTy {
230 Match_RequiresITBlock = FIRST_TARGET_MATCH_RESULT_TY,
231 Match_RequiresNotITBlock,
236 ARMAsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser)
237 : MCTargetAsmParser(), STI(_STI), Parser(_Parser) {
238 MCAsmParserExtension::Initialize(_Parser);
240 // Cache the MCRegisterInfo.
241 MRI = &getContext().getRegisterInfo();
243 // Initialize the set of available features.
244 setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
246 // Not in an ITBlock to start with.
247 ITState.CurPosition = ~0U;
250 // Implementation of the MCTargetAsmParser interface:
251 bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc);
252 bool ParseInstruction(StringRef Name, SMLoc NameLoc,
253 SmallVectorImpl<MCParsedAsmOperand*> &Operands);
254 bool ParseDirective(AsmToken DirectiveID);
256 unsigned checkTargetMatchPredicate(MCInst &Inst);
258 bool MatchAndEmitInstruction(SMLoc IDLoc,
259 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
262 } // end anonymous namespace
266 /// ARMOperand - Instances of this class represent a parsed ARM machine
268 class ARMOperand : public MCParsedAsmOperand {
288 k_VectorListAllLanes,
294 k_BitfieldDescriptor,
298 SMLoc StartLoc, EndLoc;
299 SmallVector<unsigned, 8> Registers;
303 ARMCC::CondCodes Val;
323 ARM_PROC::IFlags Val;
339 // A vector register list is a sequential list of 1 to 4 registers.
355 /// Combined record for all forms of ARM address expressions.
358 // Offset is in OffsetReg or OffsetImm. If both are zero, no offset
360 const MCConstantExpr *OffsetImm; // Offset immediate value
361 unsigned OffsetRegNum; // Offset register num, when OffsetImm == NULL
362 ARM_AM::ShiftOpc ShiftType; // Shift type for OffsetReg
363 unsigned ShiftImm; // shift for OffsetReg.
364 unsigned Alignment; // 0 = no alignment specified
365 // n = alignment in bytes (2, 4, 8, 16, or 32)
366 unsigned isNegative : 1; // Negated OffsetReg? (~'U' bit)
372 ARM_AM::ShiftOpc ShiftTy;
381 ARM_AM::ShiftOpc ShiftTy;
387 ARM_AM::ShiftOpc ShiftTy;
400 ARMOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
402 ARMOperand(const ARMOperand &o) : MCParsedAsmOperand() {
404 StartLoc = o.StartLoc;
421 case k_DPRRegisterList:
422 case k_SPRRegisterList:
423 Registers = o.Registers;
426 case k_VectorListAllLanes:
427 case k_VectorListIndexed:
428 VectorList = o.VectorList;
435 CoprocOption = o.CoprocOption;
440 case k_MemBarrierOpt:
446 case k_PostIndexRegister:
447 PostIdxReg = o.PostIdxReg;
455 case k_ShifterImmediate:
456 ShifterImm = o.ShifterImm;
458 case k_ShiftedRegister:
459 RegShiftedReg = o.RegShiftedReg;
461 case k_ShiftedImmediate:
462 RegShiftedImm = o.RegShiftedImm;
464 case k_RotateImmediate:
467 case k_BitfieldDescriptor:
468 Bitfield = o.Bitfield;
471 VectorIndex = o.VectorIndex;
476 /// getStartLoc - Get the location of the first token of this operand.
477 SMLoc getStartLoc() const { return StartLoc; }
478 /// getEndLoc - Get the location of the last token of this operand.
479 SMLoc getEndLoc() const { return EndLoc; }
481 ARMCC::CondCodes getCondCode() const {
482 assert(Kind == k_CondCode && "Invalid access!");
486 unsigned getCoproc() const {
487 assert((Kind == k_CoprocNum || Kind == k_CoprocReg) && "Invalid access!");
491 StringRef getToken() const {
492 assert(Kind == k_Token && "Invalid access!");
493 return StringRef(Tok.Data, Tok.Length);
496 unsigned getReg() const {
497 assert((Kind == k_Register || Kind == k_CCOut) && "Invalid access!");
501 const SmallVectorImpl<unsigned> &getRegList() const {
502 assert((Kind == k_RegisterList || Kind == k_DPRRegisterList ||
503 Kind == k_SPRRegisterList) && "Invalid access!");
507 const MCExpr *getImm() const {
508 assert(isImm() && "Invalid access!");
512 unsigned getVectorIndex() const {
513 assert(Kind == k_VectorIndex && "Invalid access!");
514 return VectorIndex.Val;
517 ARM_MB::MemBOpt getMemBarrierOpt() const {
518 assert(Kind == k_MemBarrierOpt && "Invalid access!");
522 ARM_PROC::IFlags getProcIFlags() const {
523 assert(Kind == k_ProcIFlags && "Invalid access!");
527 unsigned getMSRMask() const {
528 assert(Kind == k_MSRMask && "Invalid access!");
532 bool isCoprocNum() const { return Kind == k_CoprocNum; }
533 bool isCoprocReg() const { return Kind == k_CoprocReg; }
534 bool isCoprocOption() const { return Kind == k_CoprocOption; }
535 bool isCondCode() const { return Kind == k_CondCode; }
536 bool isCCOut() const { return Kind == k_CCOut; }
537 bool isITMask() const { return Kind == k_ITCondMask; }
538 bool isITCondCode() const { return Kind == k_CondCode; }
539 bool isImm() const { return Kind == k_Immediate; }
540 bool isFPImm() const {
541 if (!isImm()) return false;
542 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
543 if (!CE) return false;
544 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
547 bool isFBits16() const {
548 if (!isImm()) return false;
549 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
550 if (!CE) return false;
551 int64_t Value = CE->getValue();
552 return Value >= 0 && Value <= 16;
554 bool isFBits32() const {
555 if (!isImm()) return false;
556 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
557 if (!CE) return false;
558 int64_t Value = CE->getValue();
559 return Value >= 1 && Value <= 32;
561 bool isImm8s4() const {
562 if (!isImm()) return false;
563 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
564 if (!CE) return false;
565 int64_t Value = CE->getValue();
566 return ((Value & 3) == 0) && Value >= -1020 && Value <= 1020;
568 bool isImm0_1020s4() const {
569 if (!isImm()) return false;
570 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
571 if (!CE) return false;
572 int64_t Value = CE->getValue();
573 return ((Value & 3) == 0) && Value >= 0 && Value <= 1020;
575 bool isImm0_508s4() const {
576 if (!isImm()) return false;
577 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
578 if (!CE) return false;
579 int64_t Value = CE->getValue();
580 return ((Value & 3) == 0) && Value >= 0 && Value <= 508;
582 bool isImm0_508s4Neg() const {
583 if (!isImm()) return false;
584 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
585 if (!CE) return false;
586 int64_t Value = -CE->getValue();
587 // explicitly exclude zero. we want that to use the normal 0_508 version.
588 return ((Value & 3) == 0) && Value > 0 && Value <= 508;
590 bool isImm0_255() const {
591 if (!isImm()) return false;
592 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
593 if (!CE) return false;
594 int64_t Value = CE->getValue();
595 return Value >= 0 && Value < 256;
597 bool isImm0_4095() const {
598 if (!isImm()) return false;
599 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
600 if (!CE) return false;
601 int64_t Value = CE->getValue();
602 return Value >= 0 && Value < 4096;
604 bool isImm0_4095Neg() const {
605 if (!isImm()) return false;
606 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
607 if (!CE) return false;
608 int64_t Value = -CE->getValue();
609 return Value > 0 && Value < 4096;
611 bool isImm0_1() const {
612 if (!isImm()) return false;
613 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
614 if (!CE) return false;
615 int64_t Value = CE->getValue();
616 return Value >= 0 && Value < 2;
618 bool isImm0_3() const {
619 if (!isImm()) return false;
620 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
621 if (!CE) return false;
622 int64_t Value = CE->getValue();
623 return Value >= 0 && Value < 4;
625 bool isImm0_7() const {
626 if (!isImm()) return false;
627 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
628 if (!CE) return false;
629 int64_t Value = CE->getValue();
630 return Value >= 0 && Value < 8;
632 bool isImm0_15() const {
633 if (!isImm()) return false;
634 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
635 if (!CE) return false;
636 int64_t Value = CE->getValue();
637 return Value >= 0 && Value < 16;
639 bool isImm0_31() const {
640 if (!isImm()) return false;
641 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
642 if (!CE) return false;
643 int64_t Value = CE->getValue();
644 return Value >= 0 && Value < 32;
646 bool isImm0_63() const {
647 if (!isImm()) return false;
648 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
649 if (!CE) return false;
650 int64_t Value = CE->getValue();
651 return Value >= 0 && Value < 64;
653 bool isImm8() const {
654 if (!isImm()) return false;
655 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
656 if (!CE) return false;
657 int64_t Value = CE->getValue();
660 bool isImm16() const {
661 if (!isImm()) return false;
662 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
663 if (!CE) return false;
664 int64_t Value = CE->getValue();
667 bool isImm32() const {
668 if (!isImm()) return false;
669 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
670 if (!CE) return false;
671 int64_t Value = CE->getValue();
674 bool isShrImm8() const {
675 if (!isImm()) return false;
676 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
677 if (!CE) return false;
678 int64_t Value = CE->getValue();
679 return Value > 0 && Value <= 8;
681 bool isShrImm16() const {
682 if (!isImm()) return false;
683 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
684 if (!CE) return false;
685 int64_t Value = CE->getValue();
686 return Value > 0 && Value <= 16;
688 bool isShrImm32() const {
689 if (!isImm()) return false;
690 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
691 if (!CE) return false;
692 int64_t Value = CE->getValue();
693 return Value > 0 && Value <= 32;
695 bool isShrImm64() const {
696 if (!isImm()) return false;
697 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
698 if (!CE) return false;
699 int64_t Value = CE->getValue();
700 return Value > 0 && Value <= 64;
702 bool isImm1_7() const {
703 if (!isImm()) return false;
704 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
705 if (!CE) return false;
706 int64_t Value = CE->getValue();
707 return Value > 0 && Value < 8;
709 bool isImm1_15() const {
710 if (!isImm()) return false;
711 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
712 if (!CE) return false;
713 int64_t Value = CE->getValue();
714 return Value > 0 && Value < 16;
716 bool isImm1_31() const {
717 if (!isImm()) return false;
718 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
719 if (!CE) return false;
720 int64_t Value = CE->getValue();
721 return Value > 0 && Value < 32;
723 bool isImm1_16() const {
724 if (!isImm()) return false;
725 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
726 if (!CE) return false;
727 int64_t Value = CE->getValue();
728 return Value > 0 && Value < 17;
730 bool isImm1_32() const {
731 if (!isImm()) return false;
732 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
733 if (!CE) return false;
734 int64_t Value = CE->getValue();
735 return Value > 0 && Value < 33;
737 bool isImm0_32() const {
738 if (!isImm()) return false;
739 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
740 if (!CE) return false;
741 int64_t Value = CE->getValue();
742 return Value >= 0 && Value < 33;
744 bool isImm0_65535() const {
745 if (!isImm()) return false;
746 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
747 if (!CE) return false;
748 int64_t Value = CE->getValue();
749 return Value >= 0 && Value < 65536;
751 bool isImm0_65535Expr() const {
752 if (!isImm()) return false;
753 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
754 // If it's not a constant expression, it'll generate a fixup and be
756 if (!CE) return true;
757 int64_t Value = CE->getValue();
758 return Value >= 0 && Value < 65536;
760 bool isImm24bit() const {
761 if (!isImm()) return false;
762 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
763 if (!CE) return false;
764 int64_t Value = CE->getValue();
765 return Value >= 0 && Value <= 0xffffff;
767 bool isImmThumbSR() const {
768 if (!isImm()) return false;
769 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
770 if (!CE) return false;
771 int64_t Value = CE->getValue();
772 return Value > 0 && Value < 33;
774 bool isPKHLSLImm() const {
775 if (!isImm()) return false;
776 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
777 if (!CE) return false;
778 int64_t Value = CE->getValue();
779 return Value >= 0 && Value < 32;
781 bool isPKHASRImm() const {
782 if (!isImm()) return false;
783 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
784 if (!CE) return false;
785 int64_t Value = CE->getValue();
786 return Value > 0 && Value <= 32;
788 bool isARMSOImm() const {
789 if (!isImm()) return false;
790 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
791 if (!CE) return false;
792 int64_t Value = CE->getValue();
793 return ARM_AM::getSOImmVal(Value) != -1;
795 bool isARMSOImmNot() const {
796 if (!isImm()) return false;
797 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
798 if (!CE) return false;
799 int64_t Value = CE->getValue();
800 return ARM_AM::getSOImmVal(~Value) != -1;
802 bool isARMSOImmNeg() const {
803 if (!isImm()) return false;
804 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
805 if (!CE) return false;
806 int64_t Value = CE->getValue();
807 // Only use this when not representable as a plain so_imm.
808 return ARM_AM::getSOImmVal(Value) == -1 &&
809 ARM_AM::getSOImmVal(-Value) != -1;
811 bool isT2SOImm() const {
812 if (!isImm()) return false;
813 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
814 if (!CE) return false;
815 int64_t Value = CE->getValue();
816 return ARM_AM::getT2SOImmVal(Value) != -1;
818 bool isT2SOImmNot() const {
819 if (!isImm()) return false;
820 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
821 if (!CE) return false;
822 int64_t Value = CE->getValue();
823 return ARM_AM::getT2SOImmVal(~Value) != -1;
825 bool isT2SOImmNeg() const {
826 if (!isImm()) return false;
827 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
828 if (!CE) return false;
829 int64_t Value = CE->getValue();
830 // Only use this when not representable as a plain so_imm.
831 return ARM_AM::getT2SOImmVal(Value) == -1 &&
832 ARM_AM::getT2SOImmVal(-Value) != -1;
834 bool isSetEndImm() const {
835 if (!isImm()) return false;
836 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
837 if (!CE) return false;
838 int64_t Value = CE->getValue();
839 return Value == 1 || Value == 0;
841 bool isReg() const { return Kind == k_Register; }
842 bool isRegList() const { return Kind == k_RegisterList; }
843 bool isDPRRegList() const { return Kind == k_DPRRegisterList; }
844 bool isSPRRegList() const { return Kind == k_SPRRegisterList; }
845 bool isToken() const { return Kind == k_Token; }
846 bool isMemBarrierOpt() const { return Kind == k_MemBarrierOpt; }
847 bool isMemory() const { return Kind == k_Memory; }
848 bool isShifterImm() const { return Kind == k_ShifterImmediate; }
849 bool isRegShiftedReg() const { return Kind == k_ShiftedRegister; }
850 bool isRegShiftedImm() const { return Kind == k_ShiftedImmediate; }
851 bool isRotImm() const { return Kind == k_RotateImmediate; }
852 bool isBitfield() const { return Kind == k_BitfieldDescriptor; }
853 bool isPostIdxRegShifted() const { return Kind == k_PostIndexRegister; }
854 bool isPostIdxReg() const {
855 return Kind == k_PostIndexRegister && PostIdxReg.ShiftTy ==ARM_AM::no_shift;
857 bool isMemNoOffset(bool alignOK = false) const {
860 // No offset of any kind.
861 return Memory.OffsetRegNum == 0 && Memory.OffsetImm == 0 &&
862 (alignOK || Memory.Alignment == 0);
864 bool isMemPCRelImm12() const {
865 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
867 // Base register must be PC.
868 if (Memory.BaseRegNum != ARM::PC)
870 // Immediate offset in range [-4095, 4095].
871 if (!Memory.OffsetImm) return true;
872 int64_t Val = Memory.OffsetImm->getValue();
873 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
875 bool isAlignedMemory() const {
876 return isMemNoOffset(true);
878 bool isAddrMode2() const {
879 if (!isMemory() || Memory.Alignment != 0) return false;
880 // Check for register offset.
881 if (Memory.OffsetRegNum) return true;
882 // Immediate offset in range [-4095, 4095].
883 if (!Memory.OffsetImm) return true;
884 int64_t Val = Memory.OffsetImm->getValue();
885 return Val > -4096 && Val < 4096;
887 bool isAM2OffsetImm() const {
888 if (!isImm()) return false;
889 // Immediate offset in range [-4095, 4095].
890 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
891 if (!CE) return false;
892 int64_t Val = CE->getValue();
893 return Val > -4096 && Val < 4096;
895 bool isAddrMode3() const {
896 // If we have an immediate that's not a constant, treat it as a label
897 // reference needing a fixup. If it is a constant, it's something else
899 if (isImm() && !isa<MCConstantExpr>(getImm()))
901 if (!isMemory() || Memory.Alignment != 0) return false;
902 // No shifts are legal for AM3.
903 if (Memory.ShiftType != ARM_AM::no_shift) return false;
904 // Check for register offset.
905 if (Memory.OffsetRegNum) return true;
906 // Immediate offset in range [-255, 255].
907 if (!Memory.OffsetImm) return true;
908 int64_t Val = Memory.OffsetImm->getValue();
909 return Val > -256 && Val < 256;
911 bool isAM3Offset() const {
912 if (Kind != k_Immediate && Kind != k_PostIndexRegister)
914 if (Kind == k_PostIndexRegister)
915 return PostIdxReg.ShiftTy == ARM_AM::no_shift;
916 // Immediate offset in range [-255, 255].
917 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
918 if (!CE) return false;
919 int64_t Val = CE->getValue();
920 // Special case, #-0 is INT32_MIN.
921 return (Val > -256 && Val < 256) || Val == INT32_MIN;
923 bool isAddrMode5() const {
924 // If we have an immediate that's not a constant, treat it as a label
925 // reference needing a fixup. If it is a constant, it's something else
927 if (isImm() && !isa<MCConstantExpr>(getImm()))
929 if (!isMemory() || Memory.Alignment != 0) return false;
930 // Check for register offset.
931 if (Memory.OffsetRegNum) return false;
932 // Immediate offset in range [-1020, 1020] and a multiple of 4.
933 if (!Memory.OffsetImm) return true;
934 int64_t Val = Memory.OffsetImm->getValue();
935 return (Val >= -1020 && Val <= 1020 && ((Val & 3) == 0)) ||
938 bool isMemTBB() const {
939 if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
940 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
944 bool isMemTBH() const {
945 if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
946 Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm != 1 ||
947 Memory.Alignment != 0 )
951 bool isMemRegOffset() const {
952 if (!isMemory() || !Memory.OffsetRegNum || Memory.Alignment != 0)
956 bool isT2MemRegOffset() const {
957 if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
958 Memory.Alignment != 0)
960 // Only lsl #{0, 1, 2, 3} allowed.
961 if (Memory.ShiftType == ARM_AM::no_shift)
963 if (Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm > 3)
967 bool isMemThumbRR() const {
968 // Thumb reg+reg addressing is simple. Just two registers, a base and
969 // an offset. No shifts, negations or any other complicating factors.
970 if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
971 Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
973 return isARMLowRegister(Memory.BaseRegNum) &&
974 (!Memory.OffsetRegNum || isARMLowRegister(Memory.OffsetRegNum));
976 bool isMemThumbRIs4() const {
977 if (!isMemory() || Memory.OffsetRegNum != 0 ||
978 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
980 // Immediate offset, multiple of 4 in range [0, 124].
981 if (!Memory.OffsetImm) return true;
982 int64_t Val = Memory.OffsetImm->getValue();
983 return Val >= 0 && Val <= 124 && (Val % 4) == 0;
985 bool isMemThumbRIs2() const {
986 if (!isMemory() || Memory.OffsetRegNum != 0 ||
987 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
989 // Immediate offset, multiple of 4 in range [0, 62].
990 if (!Memory.OffsetImm) return true;
991 int64_t Val = Memory.OffsetImm->getValue();
992 return Val >= 0 && Val <= 62 && (Val % 2) == 0;
994 bool isMemThumbRIs1() const {
995 if (!isMemory() || Memory.OffsetRegNum != 0 ||
996 !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
998 // Immediate offset in range [0, 31].
999 if (!Memory.OffsetImm) return true;
1000 int64_t Val = Memory.OffsetImm->getValue();
1001 return Val >= 0 && Val <= 31;
1003 bool isMemThumbSPI() const {
1004 if (!isMemory() || Memory.OffsetRegNum != 0 ||
1005 Memory.BaseRegNum != ARM::SP || Memory.Alignment != 0)
1007 // Immediate offset, multiple of 4 in range [0, 1020].
1008 if (!Memory.OffsetImm) return true;
1009 int64_t Val = Memory.OffsetImm->getValue();
1010 return Val >= 0 && Val <= 1020 && (Val % 4) == 0;
1012 bool isMemImm8s4Offset() const {
1013 // If we have an immediate that's not a constant, treat it as a label
1014 // reference needing a fixup. If it is a constant, it's something else
1015 // and we reject it.
1016 if (isImm() && !isa<MCConstantExpr>(getImm()))
1018 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1020 // Immediate offset a multiple of 4 in range [-1020, 1020].
1021 if (!Memory.OffsetImm) return true;
1022 int64_t Val = Memory.OffsetImm->getValue();
1023 return Val >= -1020 && Val <= 1020 && (Val & 3) == 0;
1025 bool isMemImm0_1020s4Offset() const {
1026 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1028 // Immediate offset a multiple of 4 in range [0, 1020].
1029 if (!Memory.OffsetImm) return true;
1030 int64_t Val = Memory.OffsetImm->getValue();
1031 return Val >= 0 && Val <= 1020 && (Val & 3) == 0;
1033 bool isMemImm8Offset() const {
1034 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1036 // Base reg of PC isn't allowed for these encodings.
1037 if (Memory.BaseRegNum == ARM::PC) return false;
1038 // Immediate offset in range [-255, 255].
1039 if (!Memory.OffsetImm) return true;
1040 int64_t Val = Memory.OffsetImm->getValue();
1041 return (Val == INT32_MIN) || (Val > -256 && Val < 256);
1043 bool isMemPosImm8Offset() const {
1044 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1046 // Immediate offset in range [0, 255].
1047 if (!Memory.OffsetImm) return true;
1048 int64_t Val = Memory.OffsetImm->getValue();
1049 return Val >= 0 && Val < 256;
1051 bool isMemNegImm8Offset() const {
1052 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1054 // Base reg of PC isn't allowed for these encodings.
1055 if (Memory.BaseRegNum == ARM::PC) return false;
1056 // Immediate offset in range [-255, -1].
1057 if (!Memory.OffsetImm) return false;
1058 int64_t Val = Memory.OffsetImm->getValue();
1059 return (Val == INT32_MIN) || (Val > -256 && Val < 0);
1061 bool isMemUImm12Offset() const {
1062 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1064 // Immediate offset in range [0, 4095].
1065 if (!Memory.OffsetImm) return true;
1066 int64_t Val = Memory.OffsetImm->getValue();
1067 return (Val >= 0 && Val < 4096);
1069 bool isMemImm12Offset() const {
1070 // If we have an immediate that's not a constant, treat it as a label
1071 // reference needing a fixup. If it is a constant, it's something else
1072 // and we reject it.
1073 if (isImm() && !isa<MCConstantExpr>(getImm()))
1076 if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
1078 // Immediate offset in range [-4095, 4095].
1079 if (!Memory.OffsetImm) return true;
1080 int64_t Val = Memory.OffsetImm->getValue();
1081 return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
1083 bool isPostIdxImm8() const {
1084 if (!isImm()) return false;
1085 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1086 if (!CE) return false;
1087 int64_t Val = CE->getValue();
1088 return (Val > -256 && Val < 256) || (Val == INT32_MIN);
1090 bool isPostIdxImm8s4() const {
1091 if (!isImm()) return false;
1092 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1093 if (!CE) return false;
1094 int64_t Val = CE->getValue();
1095 return ((Val & 3) == 0 && Val >= -1020 && Val <= 1020) ||
1099 bool isMSRMask() const { return Kind == k_MSRMask; }
1100 bool isProcIFlags() const { return Kind == k_ProcIFlags; }
1103 bool isSingleSpacedVectorList() const {
1104 return Kind == k_VectorList && !VectorList.isDoubleSpaced;
1106 bool isDoubleSpacedVectorList() const {
1107 return Kind == k_VectorList && VectorList.isDoubleSpaced;
1109 bool isVecListOneD() const {
1110 if (!isSingleSpacedVectorList()) return false;
1111 return VectorList.Count == 1;
1114 bool isVecListDPair() const {
1115 if (!isSingleSpacedVectorList()) return false;
1116 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1117 .contains(VectorList.RegNum));
1120 bool isVecListThreeD() const {
1121 if (!isSingleSpacedVectorList()) return false;
1122 return VectorList.Count == 3;
1125 bool isVecListFourD() const {
1126 if (!isSingleSpacedVectorList()) return false;
1127 return VectorList.Count == 4;
1130 bool isVecListDPairSpaced() const {
1131 if (isSingleSpacedVectorList()) return false;
1132 return (ARMMCRegisterClasses[ARM::DPairSpcRegClassID]
1133 .contains(VectorList.RegNum));
1136 bool isVecListThreeQ() const {
1137 if (!isDoubleSpacedVectorList()) return false;
1138 return VectorList.Count == 3;
1141 bool isVecListFourQ() const {
1142 if (!isDoubleSpacedVectorList()) return false;
1143 return VectorList.Count == 4;
1146 bool isSingleSpacedVectorAllLanes() const {
1147 return Kind == k_VectorListAllLanes && !VectorList.isDoubleSpaced;
1149 bool isDoubleSpacedVectorAllLanes() const {
1150 return Kind == k_VectorListAllLanes && VectorList.isDoubleSpaced;
1152 bool isVecListOneDAllLanes() const {
1153 if (!isSingleSpacedVectorAllLanes()) return false;
1154 return VectorList.Count == 1;
1157 bool isVecListDPairAllLanes() const {
1158 if (!isSingleSpacedVectorAllLanes()) return false;
1159 return (ARMMCRegisterClasses[ARM::DPairRegClassID]
1160 .contains(VectorList.RegNum));
1163 bool isVecListDPairSpacedAllLanes() const {
1164 if (!isDoubleSpacedVectorAllLanes()) return false;
1165 return VectorList.Count == 2;
1168 bool isVecListThreeDAllLanes() const {
1169 if (!isSingleSpacedVectorAllLanes()) return false;
1170 return VectorList.Count == 3;
1173 bool isVecListThreeQAllLanes() const {
1174 if (!isDoubleSpacedVectorAllLanes()) return false;
1175 return VectorList.Count == 3;
1178 bool isVecListFourDAllLanes() const {
1179 if (!isSingleSpacedVectorAllLanes()) return false;
1180 return VectorList.Count == 4;
1183 bool isVecListFourQAllLanes() const {
1184 if (!isDoubleSpacedVectorAllLanes()) return false;
1185 return VectorList.Count == 4;
1188 bool isSingleSpacedVectorIndexed() const {
1189 return Kind == k_VectorListIndexed && !VectorList.isDoubleSpaced;
1191 bool isDoubleSpacedVectorIndexed() const {
1192 return Kind == k_VectorListIndexed && VectorList.isDoubleSpaced;
1194 bool isVecListOneDByteIndexed() const {
1195 if (!isSingleSpacedVectorIndexed()) return false;
1196 return VectorList.Count == 1 && VectorList.LaneIndex <= 7;
1199 bool isVecListOneDHWordIndexed() const {
1200 if (!isSingleSpacedVectorIndexed()) return false;
1201 return VectorList.Count == 1 && VectorList.LaneIndex <= 3;
1204 bool isVecListOneDWordIndexed() const {
1205 if (!isSingleSpacedVectorIndexed()) return false;
1206 return VectorList.Count == 1 && VectorList.LaneIndex <= 1;
1209 bool isVecListTwoDByteIndexed() const {
1210 if (!isSingleSpacedVectorIndexed()) return false;
1211 return VectorList.Count == 2 && VectorList.LaneIndex <= 7;
1214 bool isVecListTwoDHWordIndexed() const {
1215 if (!isSingleSpacedVectorIndexed()) return false;
1216 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1219 bool isVecListTwoQWordIndexed() const {
1220 if (!isDoubleSpacedVectorIndexed()) return false;
1221 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1224 bool isVecListTwoQHWordIndexed() const {
1225 if (!isDoubleSpacedVectorIndexed()) return false;
1226 return VectorList.Count == 2 && VectorList.LaneIndex <= 3;
1229 bool isVecListTwoDWordIndexed() const {
1230 if (!isSingleSpacedVectorIndexed()) return false;
1231 return VectorList.Count == 2 && VectorList.LaneIndex <= 1;
1234 bool isVecListThreeDByteIndexed() const {
1235 if (!isSingleSpacedVectorIndexed()) return false;
1236 return VectorList.Count == 3 && VectorList.LaneIndex <= 7;
1239 bool isVecListThreeDHWordIndexed() const {
1240 if (!isSingleSpacedVectorIndexed()) return false;
1241 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1244 bool isVecListThreeQWordIndexed() const {
1245 if (!isDoubleSpacedVectorIndexed()) return false;
1246 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1249 bool isVecListThreeQHWordIndexed() const {
1250 if (!isDoubleSpacedVectorIndexed()) return false;
1251 return VectorList.Count == 3 && VectorList.LaneIndex <= 3;
1254 bool isVecListThreeDWordIndexed() const {
1255 if (!isSingleSpacedVectorIndexed()) return false;
1256 return VectorList.Count == 3 && VectorList.LaneIndex <= 1;
1259 bool isVecListFourDByteIndexed() const {
1260 if (!isSingleSpacedVectorIndexed()) return false;
1261 return VectorList.Count == 4 && VectorList.LaneIndex <= 7;
1264 bool isVecListFourDHWordIndexed() const {
1265 if (!isSingleSpacedVectorIndexed()) return false;
1266 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1269 bool isVecListFourQWordIndexed() const {
1270 if (!isDoubleSpacedVectorIndexed()) return false;
1271 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1274 bool isVecListFourQHWordIndexed() const {
1275 if (!isDoubleSpacedVectorIndexed()) return false;
1276 return VectorList.Count == 4 && VectorList.LaneIndex <= 3;
1279 bool isVecListFourDWordIndexed() const {
1280 if (!isSingleSpacedVectorIndexed()) return false;
1281 return VectorList.Count == 4 && VectorList.LaneIndex <= 1;
1284 bool isVectorIndex8() const {
1285 if (Kind != k_VectorIndex) return false;
1286 return VectorIndex.Val < 8;
1288 bool isVectorIndex16() const {
1289 if (Kind != k_VectorIndex) return false;
1290 return VectorIndex.Val < 4;
1292 bool isVectorIndex32() const {
1293 if (Kind != k_VectorIndex) return false;
1294 return VectorIndex.Val < 2;
1297 bool isNEONi8splat() const {
1298 if (!isImm()) return false;
1299 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1300 // Must be a constant.
1301 if (!CE) return false;
1302 int64_t Value = CE->getValue();
1303 // i8 value splatted across 8 bytes. The immediate is just the 8 byte
1305 return Value >= 0 && Value < 256;
1308 bool isNEONi16splat() const {
1309 if (!isImm()) return false;
1310 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1311 // Must be a constant.
1312 if (!CE) return false;
1313 int64_t Value = CE->getValue();
1314 // i16 value in the range [0,255] or [0x0100, 0xff00]
1315 return (Value >= 0 && Value < 256) || (Value >= 0x0100 && Value <= 0xff00);
1318 bool isNEONi32splat() const {
1319 if (!isImm()) return false;
1320 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1321 // Must be a constant.
1322 if (!CE) return false;
1323 int64_t Value = CE->getValue();
1324 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X.
1325 return (Value >= 0 && Value < 256) ||
1326 (Value >= 0x0100 && Value <= 0xff00) ||
1327 (Value >= 0x010000 && Value <= 0xff0000) ||
1328 (Value >= 0x01000000 && Value <= 0xff000000);
1331 bool isNEONi32vmov() const {
1332 if (!isImm()) return false;
1333 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1334 // Must be a constant.
1335 if (!CE) return false;
1336 int64_t Value = CE->getValue();
1337 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1338 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1339 return (Value >= 0 && Value < 256) ||
1340 (Value >= 0x0100 && Value <= 0xff00) ||
1341 (Value >= 0x010000 && Value <= 0xff0000) ||
1342 (Value >= 0x01000000 && Value <= 0xff000000) ||
1343 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1344 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1346 bool isNEONi32vmovNeg() const {
1347 if (!isImm()) return false;
1348 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1349 // Must be a constant.
1350 if (!CE) return false;
1351 int64_t Value = ~CE->getValue();
1352 // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
1353 // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
1354 return (Value >= 0 && Value < 256) ||
1355 (Value >= 0x0100 && Value <= 0xff00) ||
1356 (Value >= 0x010000 && Value <= 0xff0000) ||
1357 (Value >= 0x01000000 && Value <= 0xff000000) ||
1358 (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
1359 (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
1362 bool isNEONi64splat() const {
1363 if (!isImm()) return false;
1364 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1365 // Must be a constant.
1366 if (!CE) return false;
1367 uint64_t Value = CE->getValue();
1368 // i64 value with each byte being either 0 or 0xff.
1369 for (unsigned i = 0; i < 8; ++i)
1370 if ((Value & 0xff) != 0 && (Value & 0xff) != 0xff) return false;
1374 void addExpr(MCInst &Inst, const MCExpr *Expr) const {
1375 // Add as immediates when possible. Null MCExpr = 0.
1377 Inst.addOperand(MCOperand::CreateImm(0));
1378 else if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr))
1379 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1381 Inst.addOperand(MCOperand::CreateExpr(Expr));
1384 void addCondCodeOperands(MCInst &Inst, unsigned N) const {
1385 assert(N == 2 && "Invalid number of operands!");
1386 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1387 unsigned RegNum = getCondCode() == ARMCC::AL ? 0: ARM::CPSR;
1388 Inst.addOperand(MCOperand::CreateReg(RegNum));
1391 void addCoprocNumOperands(MCInst &Inst, unsigned N) const {
1392 assert(N == 1 && "Invalid number of operands!");
1393 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1396 void addCoprocRegOperands(MCInst &Inst, unsigned N) const {
1397 assert(N == 1 && "Invalid number of operands!");
1398 Inst.addOperand(MCOperand::CreateImm(getCoproc()));
1401 void addCoprocOptionOperands(MCInst &Inst, unsigned N) const {
1402 assert(N == 1 && "Invalid number of operands!");
1403 Inst.addOperand(MCOperand::CreateImm(CoprocOption.Val));
1406 void addITMaskOperands(MCInst &Inst, unsigned N) const {
1407 assert(N == 1 && "Invalid number of operands!");
1408 Inst.addOperand(MCOperand::CreateImm(ITMask.Mask));
1411 void addITCondCodeOperands(MCInst &Inst, unsigned N) const {
1412 assert(N == 1 && "Invalid number of operands!");
1413 Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
1416 void addCCOutOperands(MCInst &Inst, unsigned N) const {
1417 assert(N == 1 && "Invalid number of operands!");
1418 Inst.addOperand(MCOperand::CreateReg(getReg()));
1421 void addRegOperands(MCInst &Inst, unsigned N) const {
1422 assert(N == 1 && "Invalid number of operands!");
1423 Inst.addOperand(MCOperand::CreateReg(getReg()));
1426 void addRegShiftedRegOperands(MCInst &Inst, unsigned N) const {
1427 assert(N == 3 && "Invalid number of operands!");
1428 assert(isRegShiftedReg() &&
1429 "addRegShiftedRegOperands() on non RegShiftedReg!");
1430 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.SrcReg));
1431 Inst.addOperand(MCOperand::CreateReg(RegShiftedReg.ShiftReg));
1432 Inst.addOperand(MCOperand::CreateImm(
1433 ARM_AM::getSORegOpc(RegShiftedReg.ShiftTy, RegShiftedReg.ShiftImm)));
1436 void addRegShiftedImmOperands(MCInst &Inst, unsigned N) const {
1437 assert(N == 2 && "Invalid number of operands!");
1438 assert(isRegShiftedImm() &&
1439 "addRegShiftedImmOperands() on non RegShiftedImm!");
1440 Inst.addOperand(MCOperand::CreateReg(RegShiftedImm.SrcReg));
1441 Inst.addOperand(MCOperand::CreateImm(
1442 ARM_AM::getSORegOpc(RegShiftedImm.ShiftTy, RegShiftedImm.ShiftImm)));
1445 void addShifterImmOperands(MCInst &Inst, unsigned N) const {
1446 assert(N == 1 && "Invalid number of operands!");
1447 Inst.addOperand(MCOperand::CreateImm((ShifterImm.isASR << 5) |
1451 void addRegListOperands(MCInst &Inst, unsigned N) const {
1452 assert(N == 1 && "Invalid number of operands!");
1453 const SmallVectorImpl<unsigned> &RegList = getRegList();
1454 for (SmallVectorImpl<unsigned>::const_iterator
1455 I = RegList.begin(), E = RegList.end(); I != E; ++I)
1456 Inst.addOperand(MCOperand::CreateReg(*I));
1459 void addDPRRegListOperands(MCInst &Inst, unsigned N) const {
1460 addRegListOperands(Inst, N);
1463 void addSPRRegListOperands(MCInst &Inst, unsigned N) const {
1464 addRegListOperands(Inst, N);
1467 void addRotImmOperands(MCInst &Inst, unsigned N) const {
1468 assert(N == 1 && "Invalid number of operands!");
1469 // Encoded as val>>3. The printer handles display as 8, 16, 24.
1470 Inst.addOperand(MCOperand::CreateImm(RotImm.Imm >> 3));
1473 void addBitfieldOperands(MCInst &Inst, unsigned N) const {
1474 assert(N == 1 && "Invalid number of operands!");
1475 // Munge the lsb/width into a bitfield mask.
1476 unsigned lsb = Bitfield.LSB;
1477 unsigned width = Bitfield.Width;
1478 // Make a 32-bit mask w/ the referenced bits clear and all other bits set.
1479 uint32_t Mask = ~(((uint32_t)0xffffffff >> lsb) << (32 - width) >>
1480 (32 - (lsb + width)));
1481 Inst.addOperand(MCOperand::CreateImm(Mask));
1484 void addImmOperands(MCInst &Inst, unsigned N) const {
1485 assert(N == 1 && "Invalid number of operands!");
1486 addExpr(Inst, getImm());
1489 void addFBits16Operands(MCInst &Inst, unsigned N) const {
1490 assert(N == 1 && "Invalid number of operands!");
1491 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1492 Inst.addOperand(MCOperand::CreateImm(16 - CE->getValue()));
1495 void addFBits32Operands(MCInst &Inst, unsigned N) const {
1496 assert(N == 1 && "Invalid number of operands!");
1497 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1498 Inst.addOperand(MCOperand::CreateImm(32 - CE->getValue()));
1501 void addFPImmOperands(MCInst &Inst, unsigned N) const {
1502 assert(N == 1 && "Invalid number of operands!");
1503 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1504 int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
1505 Inst.addOperand(MCOperand::CreateImm(Val));
1508 void addImm8s4Operands(MCInst &Inst, unsigned N) const {
1509 assert(N == 1 && "Invalid number of operands!");
1510 // FIXME: We really want to scale the value here, but the LDRD/STRD
1511 // instruction don't encode operands that way yet.
1512 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1513 Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
1516 void addImm0_1020s4Operands(MCInst &Inst, unsigned N) const {
1517 assert(N == 1 && "Invalid number of operands!");
1518 // The immediate is scaled by four in the encoding and is stored
1519 // in the MCInst as such. Lop off the low two bits here.
1520 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1521 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1524 void addImm0_508s4NegOperands(MCInst &Inst, unsigned N) const {
1525 assert(N == 1 && "Invalid number of operands!");
1526 // The immediate is scaled by four in the encoding and is stored
1527 // in the MCInst as such. Lop off the low two bits here.
1528 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1529 Inst.addOperand(MCOperand::CreateImm(-(CE->getValue() / 4)));
1532 void addImm0_508s4Operands(MCInst &Inst, unsigned N) const {
1533 assert(N == 1 && "Invalid number of operands!");
1534 // The immediate is scaled by four in the encoding and is stored
1535 // in the MCInst as such. Lop off the low two bits here.
1536 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1537 Inst.addOperand(MCOperand::CreateImm(CE->getValue() / 4));
1540 void addImm1_16Operands(MCInst &Inst, unsigned N) const {
1541 assert(N == 1 && "Invalid number of operands!");
1542 // The constant encodes as the immediate-1, and we store in the instruction
1543 // the bits as encoded, so subtract off one here.
1544 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1545 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1548 void addImm1_32Operands(MCInst &Inst, unsigned N) const {
1549 assert(N == 1 && "Invalid number of operands!");
1550 // The constant encodes as the immediate-1, and we store in the instruction
1551 // the bits as encoded, so subtract off one here.
1552 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1553 Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
1556 void addImmThumbSROperands(MCInst &Inst, unsigned N) const {
1557 assert(N == 1 && "Invalid number of operands!");
1558 // The constant encodes as the immediate, except for 32, which encodes as
1560 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1561 unsigned Imm = CE->getValue();
1562 Inst.addOperand(MCOperand::CreateImm((Imm == 32 ? 0 : Imm)));
1565 void addPKHASRImmOperands(MCInst &Inst, unsigned N) const {
1566 assert(N == 1 && "Invalid number of operands!");
1567 // An ASR value of 32 encodes as 0, so that's how we want to add it to
1568 // the instruction as well.
1569 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1570 int Val = CE->getValue();
1571 Inst.addOperand(MCOperand::CreateImm(Val == 32 ? 0 : Val));
1574 void addT2SOImmNotOperands(MCInst &Inst, unsigned N) const {
1575 assert(N == 1 && "Invalid number of operands!");
1576 // The operand is actually a t2_so_imm, but we have its bitwise
1577 // negation in the assembly source, so twiddle it here.
1578 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1579 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1582 void addT2SOImmNegOperands(MCInst &Inst, unsigned N) const {
1583 assert(N == 1 && "Invalid number of operands!");
1584 // The operand is actually a t2_so_imm, but we have its
1585 // negation in the assembly source, so twiddle it here.
1586 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1587 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1590 void addImm0_4095NegOperands(MCInst &Inst, unsigned N) const {
1591 assert(N == 1 && "Invalid number of operands!");
1592 // The operand is actually an imm0_4095, but we have its
1593 // negation in the assembly source, so twiddle it here.
1594 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1595 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1598 void addARMSOImmNotOperands(MCInst &Inst, unsigned N) const {
1599 assert(N == 1 && "Invalid number of operands!");
1600 // The operand is actually a so_imm, but we have its bitwise
1601 // negation in the assembly source, so twiddle it here.
1602 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1603 Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
1606 void addARMSOImmNegOperands(MCInst &Inst, unsigned N) const {
1607 assert(N == 1 && "Invalid number of operands!");
1608 // The operand is actually a so_imm, but we have its
1609 // negation in the assembly source, so twiddle it here.
1610 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1611 Inst.addOperand(MCOperand::CreateImm(-CE->getValue()));
1614 void addMemBarrierOptOperands(MCInst &Inst, unsigned N) const {
1615 assert(N == 1 && "Invalid number of operands!");
1616 Inst.addOperand(MCOperand::CreateImm(unsigned(getMemBarrierOpt())));
1619 void addMemNoOffsetOperands(MCInst &Inst, unsigned N) const {
1620 assert(N == 1 && "Invalid number of operands!");
1621 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1624 void addMemPCRelImm12Operands(MCInst &Inst, unsigned N) const {
1625 assert(N == 1 && "Invalid number of operands!");
1626 int32_t Imm = Memory.OffsetImm->getValue();
1627 // FIXME: Handle #-0
1628 if (Imm == INT32_MIN) Imm = 0;
1629 Inst.addOperand(MCOperand::CreateImm(Imm));
1632 void addAlignedMemoryOperands(MCInst &Inst, unsigned N) const {
1633 assert(N == 2 && "Invalid number of operands!");
1634 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1635 Inst.addOperand(MCOperand::CreateImm(Memory.Alignment));
1638 void addAddrMode2Operands(MCInst &Inst, unsigned N) const {
1639 assert(N == 3 && "Invalid number of operands!");
1640 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1641 if (!Memory.OffsetRegNum) {
1642 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1643 // Special case for #-0
1644 if (Val == INT32_MIN) Val = 0;
1645 if (Val < 0) Val = -Val;
1646 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
1648 // For register offset, we encode the shift type and negation flag
1650 Val = ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
1651 Memory.ShiftImm, Memory.ShiftType);
1653 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1654 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1655 Inst.addOperand(MCOperand::CreateImm(Val));
1658 void addAM2OffsetImmOperands(MCInst &Inst, unsigned N) const {
1659 assert(N == 2 && "Invalid number of operands!");
1660 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1661 assert(CE && "non-constant AM2OffsetImm operand!");
1662 int32_t Val = CE->getValue();
1663 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1664 // Special case for #-0
1665 if (Val == INT32_MIN) Val = 0;
1666 if (Val < 0) Val = -Val;
1667 Val = ARM_AM::getAM2Opc(AddSub, Val, ARM_AM::no_shift);
1668 Inst.addOperand(MCOperand::CreateReg(0));
1669 Inst.addOperand(MCOperand::CreateImm(Val));
1672 void addAddrMode3Operands(MCInst &Inst, unsigned N) const {
1673 assert(N == 3 && "Invalid number of operands!");
1674 // If we have an immediate that's not a constant, treat it as a label
1675 // reference needing a fixup. If it is a constant, it's something else
1676 // and we reject it.
1678 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1679 Inst.addOperand(MCOperand::CreateReg(0));
1680 Inst.addOperand(MCOperand::CreateImm(0));
1684 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1685 if (!Memory.OffsetRegNum) {
1686 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1687 // Special case for #-0
1688 if (Val == INT32_MIN) Val = 0;
1689 if (Val < 0) Val = -Val;
1690 Val = ARM_AM::getAM3Opc(AddSub, Val);
1692 // For register offset, we encode the shift type and negation flag
1694 Val = ARM_AM::getAM3Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add, 0);
1696 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1697 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1698 Inst.addOperand(MCOperand::CreateImm(Val));
1701 void addAM3OffsetOperands(MCInst &Inst, unsigned N) const {
1702 assert(N == 2 && "Invalid number of operands!");
1703 if (Kind == k_PostIndexRegister) {
1705 ARM_AM::getAM3Opc(PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub, 0);
1706 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
1707 Inst.addOperand(MCOperand::CreateImm(Val));
1712 const MCConstantExpr *CE = static_cast<const MCConstantExpr*>(getImm());
1713 int32_t Val = CE->getValue();
1714 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1715 // Special case for #-0
1716 if (Val == INT32_MIN) Val = 0;
1717 if (Val < 0) Val = -Val;
1718 Val = ARM_AM::getAM3Opc(AddSub, Val);
1719 Inst.addOperand(MCOperand::CreateReg(0));
1720 Inst.addOperand(MCOperand::CreateImm(Val));
1723 void addAddrMode5Operands(MCInst &Inst, unsigned N) const {
1724 assert(N == 2 && "Invalid number of operands!");
1725 // If we have an immediate that's not a constant, treat it as a label
1726 // reference needing a fixup. If it is a constant, it's something else
1727 // and we reject it.
1729 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1730 Inst.addOperand(MCOperand::CreateImm(0));
1734 // The lower two bits are always zero and as such are not encoded.
1735 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
1736 ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
1737 // Special case for #-0
1738 if (Val == INT32_MIN) Val = 0;
1739 if (Val < 0) Val = -Val;
1740 Val = ARM_AM::getAM5Opc(AddSub, Val);
1741 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1742 Inst.addOperand(MCOperand::CreateImm(Val));
1745 void addMemImm8s4OffsetOperands(MCInst &Inst, unsigned N) const {
1746 assert(N == 2 && "Invalid number of operands!");
1747 // If we have an immediate that's not a constant, treat it as a label
1748 // reference needing a fixup. If it is a constant, it's something else
1749 // and we reject it.
1751 Inst.addOperand(MCOperand::CreateExpr(getImm()));
1752 Inst.addOperand(MCOperand::CreateImm(0));
1756 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1757 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1758 Inst.addOperand(MCOperand::CreateImm(Val));
1761 void addMemImm0_1020s4OffsetOperands(MCInst &Inst, unsigned N) const {
1762 assert(N == 2 && "Invalid number of operands!");
1763 // The lower two bits are always zero and as such are not encoded.
1764 int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
1765 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1766 Inst.addOperand(MCOperand::CreateImm(Val));
1769 void addMemImm8OffsetOperands(MCInst &Inst, unsigned N) const {
1770 assert(N == 2 && "Invalid number of operands!");
1771 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1772 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1773 Inst.addOperand(MCOperand::CreateImm(Val));
1776 void addMemPosImm8OffsetOperands(MCInst &Inst, unsigned N) const {
1777 addMemImm8OffsetOperands(Inst, N);
1780 void addMemNegImm8OffsetOperands(MCInst &Inst, unsigned N) const {
1781 addMemImm8OffsetOperands(Inst, N);
1784 void addMemUImm12OffsetOperands(MCInst &Inst, unsigned N) const {
1785 assert(N == 2 && "Invalid number of operands!");
1786 // If this is an immediate, it's a label reference.
1788 addExpr(Inst, getImm());
1789 Inst.addOperand(MCOperand::CreateImm(0));
1793 // Otherwise, it's a normal memory reg+offset.
1794 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1795 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1796 Inst.addOperand(MCOperand::CreateImm(Val));
1799 void addMemImm12OffsetOperands(MCInst &Inst, unsigned N) const {
1800 assert(N == 2 && "Invalid number of operands!");
1801 // If this is an immediate, it's a label reference.
1803 addExpr(Inst, getImm());
1804 Inst.addOperand(MCOperand::CreateImm(0));
1808 // Otherwise, it's a normal memory reg+offset.
1809 int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
1810 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1811 Inst.addOperand(MCOperand::CreateImm(Val));
1814 void addMemTBBOperands(MCInst &Inst, unsigned N) const {
1815 assert(N == 2 && "Invalid number of operands!");
1816 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1817 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1820 void addMemTBHOperands(MCInst &Inst, unsigned N) const {
1821 assert(N == 2 && "Invalid number of operands!");
1822 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1823 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1826 void addMemRegOffsetOperands(MCInst &Inst, unsigned N) const {
1827 assert(N == 3 && "Invalid number of operands!");
1829 ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
1830 Memory.ShiftImm, Memory.ShiftType);
1831 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1832 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1833 Inst.addOperand(MCOperand::CreateImm(Val));
1836 void addT2MemRegOffsetOperands(MCInst &Inst, unsigned N) const {
1837 assert(N == 3 && "Invalid number of operands!");
1838 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1839 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1840 Inst.addOperand(MCOperand::CreateImm(Memory.ShiftImm));
1843 void addMemThumbRROperands(MCInst &Inst, unsigned N) const {
1844 assert(N == 2 && "Invalid number of operands!");
1845 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1846 Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
1849 void addMemThumbRIs4Operands(MCInst &Inst, unsigned N) const {
1850 assert(N == 2 && "Invalid number of operands!");
1851 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
1852 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1853 Inst.addOperand(MCOperand::CreateImm(Val));
1856 void addMemThumbRIs2Operands(MCInst &Inst, unsigned N) const {
1857 assert(N == 2 && "Invalid number of operands!");
1858 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 2) : 0;
1859 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1860 Inst.addOperand(MCOperand::CreateImm(Val));
1863 void addMemThumbRIs1Operands(MCInst &Inst, unsigned N) const {
1864 assert(N == 2 && "Invalid number of operands!");
1865 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue()) : 0;
1866 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1867 Inst.addOperand(MCOperand::CreateImm(Val));
1870 void addMemThumbSPIOperands(MCInst &Inst, unsigned N) const {
1871 assert(N == 2 && "Invalid number of operands!");
1872 int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
1873 Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
1874 Inst.addOperand(MCOperand::CreateImm(Val));
1877 void addPostIdxImm8Operands(MCInst &Inst, unsigned N) const {
1878 assert(N == 1 && "Invalid number of operands!");
1879 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1880 assert(CE && "non-constant post-idx-imm8 operand!");
1881 int Imm = CE->getValue();
1882 bool isAdd = Imm >= 0;
1883 if (Imm == INT32_MIN) Imm = 0;
1884 Imm = (Imm < 0 ? -Imm : Imm) | (int)isAdd << 8;
1885 Inst.addOperand(MCOperand::CreateImm(Imm));
1888 void addPostIdxImm8s4Operands(MCInst &Inst, unsigned N) const {
1889 assert(N == 1 && "Invalid number of operands!");
1890 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1891 assert(CE && "non-constant post-idx-imm8s4 operand!");
1892 int Imm = CE->getValue();
1893 bool isAdd = Imm >= 0;
1894 if (Imm == INT32_MIN) Imm = 0;
1895 // Immediate is scaled by 4.
1896 Imm = ((Imm < 0 ? -Imm : Imm) / 4) | (int)isAdd << 8;
1897 Inst.addOperand(MCOperand::CreateImm(Imm));
1900 void addPostIdxRegOperands(MCInst &Inst, unsigned N) const {
1901 assert(N == 2 && "Invalid number of operands!");
1902 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
1903 Inst.addOperand(MCOperand::CreateImm(PostIdxReg.isAdd));
1906 void addPostIdxRegShiftedOperands(MCInst &Inst, unsigned N) const {
1907 assert(N == 2 && "Invalid number of operands!");
1908 Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
1909 // The sign, shift type, and shift amount are encoded in a single operand
1910 // using the AM2 encoding helpers.
1911 ARM_AM::AddrOpc opc = PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub;
1912 unsigned Imm = ARM_AM::getAM2Opc(opc, PostIdxReg.ShiftImm,
1913 PostIdxReg.ShiftTy);
1914 Inst.addOperand(MCOperand::CreateImm(Imm));
1917 void addMSRMaskOperands(MCInst &Inst, unsigned N) const {
1918 assert(N == 1 && "Invalid number of operands!");
1919 Inst.addOperand(MCOperand::CreateImm(unsigned(getMSRMask())));
1922 void addProcIFlagsOperands(MCInst &Inst, unsigned N) const {
1923 assert(N == 1 && "Invalid number of operands!");
1924 Inst.addOperand(MCOperand::CreateImm(unsigned(getProcIFlags())));
1927 void addVecListOperands(MCInst &Inst, unsigned N) const {
1928 assert(N == 1 && "Invalid number of operands!");
1929 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
1932 void addVecListIndexedOperands(MCInst &Inst, unsigned N) const {
1933 assert(N == 2 && "Invalid number of operands!");
1934 Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
1935 Inst.addOperand(MCOperand::CreateImm(VectorList.LaneIndex));
1938 void addVectorIndex8Operands(MCInst &Inst, unsigned N) const {
1939 assert(N == 1 && "Invalid number of operands!");
1940 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
1943 void addVectorIndex16Operands(MCInst &Inst, unsigned N) const {
1944 assert(N == 1 && "Invalid number of operands!");
1945 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
1948 void addVectorIndex32Operands(MCInst &Inst, unsigned N) const {
1949 assert(N == 1 && "Invalid number of operands!");
1950 Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
1953 void addNEONi8splatOperands(MCInst &Inst, unsigned N) const {
1954 assert(N == 1 && "Invalid number of operands!");
1955 // The immediate encodes the type of constant as well as the value.
1956 // Mask in that this is an i8 splat.
1957 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1958 Inst.addOperand(MCOperand::CreateImm(CE->getValue() | 0xe00));
1961 void addNEONi16splatOperands(MCInst &Inst, unsigned N) const {
1962 assert(N == 1 && "Invalid number of operands!");
1963 // The immediate encodes the type of constant as well as the value.
1964 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1965 unsigned Value = CE->getValue();
1967 Value = (Value >> 8) | 0xa00;
1970 Inst.addOperand(MCOperand::CreateImm(Value));
1973 void addNEONi32splatOperands(MCInst &Inst, unsigned N) const {
1974 assert(N == 1 && "Invalid number of operands!");
1975 // The immediate encodes the type of constant as well as the value.
1976 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1977 unsigned Value = CE->getValue();
1978 if (Value >= 256 && Value <= 0xff00)
1979 Value = (Value >> 8) | 0x200;
1980 else if (Value > 0xffff && Value <= 0xff0000)
1981 Value = (Value >> 16) | 0x400;
1982 else if (Value > 0xffffff)
1983 Value = (Value >> 24) | 0x600;
1984 Inst.addOperand(MCOperand::CreateImm(Value));
1987 void addNEONi32vmovOperands(MCInst &Inst, unsigned N) const {
1988 assert(N == 1 && "Invalid number of operands!");
1989 // The immediate encodes the type of constant as well as the value.
1990 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
1991 unsigned Value = CE->getValue();
1992 if (Value >= 256 && Value <= 0xffff)
1993 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
1994 else if (Value > 0xffff && Value <= 0xffffff)
1995 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
1996 else if (Value > 0xffffff)
1997 Value = (Value >> 24) | 0x600;
1998 Inst.addOperand(MCOperand::CreateImm(Value));
2001 void addNEONi32vmovNegOperands(MCInst &Inst, unsigned N) const {
2002 assert(N == 1 && "Invalid number of operands!");
2003 // The immediate encodes the type of constant as well as the value.
2004 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2005 unsigned Value = ~CE->getValue();
2006 if (Value >= 256 && Value <= 0xffff)
2007 Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
2008 else if (Value > 0xffff && Value <= 0xffffff)
2009 Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
2010 else if (Value > 0xffffff)
2011 Value = (Value >> 24) | 0x600;
2012 Inst.addOperand(MCOperand::CreateImm(Value));
2015 void addNEONi64splatOperands(MCInst &Inst, unsigned N) const {
2016 assert(N == 1 && "Invalid number of operands!");
2017 // The immediate encodes the type of constant as well as the value.
2018 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
2019 uint64_t Value = CE->getValue();
2021 for (unsigned i = 0; i < 8; ++i, Value >>= 8) {
2022 Imm |= (Value & 1) << i;
2024 Inst.addOperand(MCOperand::CreateImm(Imm | 0x1e00));
2027 virtual void print(raw_ostream &OS) const;
2029 static ARMOperand *CreateITMask(unsigned Mask, SMLoc S) {
2030 ARMOperand *Op = new ARMOperand(k_ITCondMask);
2031 Op->ITMask.Mask = Mask;
2037 static ARMOperand *CreateCondCode(ARMCC::CondCodes CC, SMLoc S) {
2038 ARMOperand *Op = new ARMOperand(k_CondCode);
2045 static ARMOperand *CreateCoprocNum(unsigned CopVal, SMLoc S) {
2046 ARMOperand *Op = new ARMOperand(k_CoprocNum);
2047 Op->Cop.Val = CopVal;
2053 static ARMOperand *CreateCoprocReg(unsigned CopVal, SMLoc S) {
2054 ARMOperand *Op = new ARMOperand(k_CoprocReg);
2055 Op->Cop.Val = CopVal;
2061 static ARMOperand *CreateCoprocOption(unsigned Val, SMLoc S, SMLoc E) {
2062 ARMOperand *Op = new ARMOperand(k_CoprocOption);
2069 static ARMOperand *CreateCCOut(unsigned RegNum, SMLoc S) {
2070 ARMOperand *Op = new ARMOperand(k_CCOut);
2071 Op->Reg.RegNum = RegNum;
2077 static ARMOperand *CreateToken(StringRef Str, SMLoc S) {
2078 ARMOperand *Op = new ARMOperand(k_Token);
2079 Op->Tok.Data = Str.data();
2080 Op->Tok.Length = Str.size();
2086 static ARMOperand *CreateReg(unsigned RegNum, SMLoc S, SMLoc E) {
2087 ARMOperand *Op = new ARMOperand(k_Register);
2088 Op->Reg.RegNum = RegNum;
2094 static ARMOperand *CreateShiftedRegister(ARM_AM::ShiftOpc ShTy,
2099 ARMOperand *Op = new ARMOperand(k_ShiftedRegister);
2100 Op->RegShiftedReg.ShiftTy = ShTy;
2101 Op->RegShiftedReg.SrcReg = SrcReg;
2102 Op->RegShiftedReg.ShiftReg = ShiftReg;
2103 Op->RegShiftedReg.ShiftImm = ShiftImm;
2109 static ARMOperand *CreateShiftedImmediate(ARM_AM::ShiftOpc ShTy,
2113 ARMOperand *Op = new ARMOperand(k_ShiftedImmediate);
2114 Op->RegShiftedImm.ShiftTy = ShTy;
2115 Op->RegShiftedImm.SrcReg = SrcReg;
2116 Op->RegShiftedImm.ShiftImm = ShiftImm;
2122 static ARMOperand *CreateShifterImm(bool isASR, unsigned Imm,
2124 ARMOperand *Op = new ARMOperand(k_ShifterImmediate);
2125 Op->ShifterImm.isASR = isASR;
2126 Op->ShifterImm.Imm = Imm;
2132 static ARMOperand *CreateRotImm(unsigned Imm, SMLoc S, SMLoc E) {
2133 ARMOperand *Op = new ARMOperand(k_RotateImmediate);
2134 Op->RotImm.Imm = Imm;
2140 static ARMOperand *CreateBitfield(unsigned LSB, unsigned Width,
2142 ARMOperand *Op = new ARMOperand(k_BitfieldDescriptor);
2143 Op->Bitfield.LSB = LSB;
2144 Op->Bitfield.Width = Width;
2151 CreateRegList(const SmallVectorImpl<std::pair<unsigned, SMLoc> > &Regs,
2152 SMLoc StartLoc, SMLoc EndLoc) {
2153 KindTy Kind = k_RegisterList;
2155 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Regs.front().first))
2156 Kind = k_DPRRegisterList;
2157 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].
2158 contains(Regs.front().first))
2159 Kind = k_SPRRegisterList;
2161 ARMOperand *Op = new ARMOperand(Kind);
2162 for (SmallVectorImpl<std::pair<unsigned, SMLoc> >::const_iterator
2163 I = Regs.begin(), E = Regs.end(); I != E; ++I)
2164 Op->Registers.push_back(I->first);
2165 array_pod_sort(Op->Registers.begin(), Op->Registers.end());
2166 Op->StartLoc = StartLoc;
2167 Op->EndLoc = EndLoc;
2171 static ARMOperand *CreateVectorList(unsigned RegNum, unsigned Count,
2172 bool isDoubleSpaced, SMLoc S, SMLoc E) {
2173 ARMOperand *Op = new ARMOperand(k_VectorList);
2174 Op->VectorList.RegNum = RegNum;
2175 Op->VectorList.Count = Count;
2176 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2182 static ARMOperand *CreateVectorListAllLanes(unsigned RegNum, unsigned Count,
2183 bool isDoubleSpaced,
2185 ARMOperand *Op = new ARMOperand(k_VectorListAllLanes);
2186 Op->VectorList.RegNum = RegNum;
2187 Op->VectorList.Count = Count;
2188 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2194 static ARMOperand *CreateVectorListIndexed(unsigned RegNum, unsigned Count,
2196 bool isDoubleSpaced,
2198 ARMOperand *Op = new ARMOperand(k_VectorListIndexed);
2199 Op->VectorList.RegNum = RegNum;
2200 Op->VectorList.Count = Count;
2201 Op->VectorList.LaneIndex = Index;
2202 Op->VectorList.isDoubleSpaced = isDoubleSpaced;
2208 static ARMOperand *CreateVectorIndex(unsigned Idx, SMLoc S, SMLoc E,
2210 ARMOperand *Op = new ARMOperand(k_VectorIndex);
2211 Op->VectorIndex.Val = Idx;
2217 static ARMOperand *CreateImm(const MCExpr *Val, SMLoc S, SMLoc E) {
2218 ARMOperand *Op = new ARMOperand(k_Immediate);
2225 static ARMOperand *CreateMem(unsigned BaseRegNum,
2226 const MCConstantExpr *OffsetImm,
2227 unsigned OffsetRegNum,
2228 ARM_AM::ShiftOpc ShiftType,
2233 ARMOperand *Op = new ARMOperand(k_Memory);
2234 Op->Memory.BaseRegNum = BaseRegNum;
2235 Op->Memory.OffsetImm = OffsetImm;
2236 Op->Memory.OffsetRegNum = OffsetRegNum;
2237 Op->Memory.ShiftType = ShiftType;
2238 Op->Memory.ShiftImm = ShiftImm;
2239 Op->Memory.Alignment = Alignment;
2240 Op->Memory.isNegative = isNegative;
2246 static ARMOperand *CreatePostIdxReg(unsigned RegNum, bool isAdd,
2247 ARM_AM::ShiftOpc ShiftTy,
2250 ARMOperand *Op = new ARMOperand(k_PostIndexRegister);
2251 Op->PostIdxReg.RegNum = RegNum;
2252 Op->PostIdxReg.isAdd = isAdd;
2253 Op->PostIdxReg.ShiftTy = ShiftTy;
2254 Op->PostIdxReg.ShiftImm = ShiftImm;
2260 static ARMOperand *CreateMemBarrierOpt(ARM_MB::MemBOpt Opt, SMLoc S) {
2261 ARMOperand *Op = new ARMOperand(k_MemBarrierOpt);
2262 Op->MBOpt.Val = Opt;
2268 static ARMOperand *CreateProcIFlags(ARM_PROC::IFlags IFlags, SMLoc S) {
2269 ARMOperand *Op = new ARMOperand(k_ProcIFlags);
2270 Op->IFlags.Val = IFlags;
2276 static ARMOperand *CreateMSRMask(unsigned MMask, SMLoc S) {
2277 ARMOperand *Op = new ARMOperand(k_MSRMask);
2278 Op->MMask.Val = MMask;
2285 } // end anonymous namespace.
2287 void ARMOperand::print(raw_ostream &OS) const {
2290 OS << "<ARMCC::" << ARMCondCodeToString(getCondCode()) << ">";
2293 OS << "<ccout " << getReg() << ">";
2295 case k_ITCondMask: {
2296 static const char *MaskStr[] = {
2297 "()", "(t)", "(e)", "(tt)", "(et)", "(te)", "(ee)", "(ttt)", "(ett)",
2298 "(tet)", "(eet)", "(tte)", "(ete)", "(tee)", "(eee)"
2300 assert((ITMask.Mask & 0xf) == ITMask.Mask);
2301 OS << "<it-mask " << MaskStr[ITMask.Mask] << ">";
2305 OS << "<coprocessor number: " << getCoproc() << ">";
2308 OS << "<coprocessor register: " << getCoproc() << ">";
2310 case k_CoprocOption:
2311 OS << "<coprocessor option: " << CoprocOption.Val << ">";
2314 OS << "<mask: " << getMSRMask() << ">";
2317 getImm()->print(OS);
2319 case k_MemBarrierOpt:
2320 OS << "<ARM_MB::" << MemBOptToString(getMemBarrierOpt()) << ">";
2324 << " base:" << Memory.BaseRegNum;
2327 case k_PostIndexRegister:
2328 OS << "post-idx register " << (PostIdxReg.isAdd ? "" : "-")
2329 << PostIdxReg.RegNum;
2330 if (PostIdxReg.ShiftTy != ARM_AM::no_shift)
2331 OS << ARM_AM::getShiftOpcStr(PostIdxReg.ShiftTy) << " "
2332 << PostIdxReg.ShiftImm;
2335 case k_ProcIFlags: {
2336 OS << "<ARM_PROC::";
2337 unsigned IFlags = getProcIFlags();
2338 for (int i=2; i >= 0; --i)
2339 if (IFlags & (1 << i))
2340 OS << ARM_PROC::IFlagsToString(1 << i);
2345 OS << "<register " << getReg() << ">";
2347 case k_ShifterImmediate:
2348 OS << "<shift " << (ShifterImm.isASR ? "asr" : "lsl")
2349 << " #" << ShifterImm.Imm << ">";
2351 case k_ShiftedRegister:
2352 OS << "<so_reg_reg "
2353 << RegShiftedReg.SrcReg << " "
2354 << ARM_AM::getShiftOpcStr(RegShiftedReg.ShiftTy)
2355 << " " << RegShiftedReg.ShiftReg << ">";
2357 case k_ShiftedImmediate:
2358 OS << "<so_reg_imm "
2359 << RegShiftedImm.SrcReg << " "
2360 << ARM_AM::getShiftOpcStr(RegShiftedImm.ShiftTy)
2361 << " #" << RegShiftedImm.ShiftImm << ">";
2363 case k_RotateImmediate:
2364 OS << "<ror " << " #" << (RotImm.Imm * 8) << ">";
2366 case k_BitfieldDescriptor:
2367 OS << "<bitfield " << "lsb: " << Bitfield.LSB
2368 << ", width: " << Bitfield.Width << ">";
2370 case k_RegisterList:
2371 case k_DPRRegisterList:
2372 case k_SPRRegisterList: {
2373 OS << "<register_list ";
2375 const SmallVectorImpl<unsigned> &RegList = getRegList();
2376 for (SmallVectorImpl<unsigned>::const_iterator
2377 I = RegList.begin(), E = RegList.end(); I != E; ) {
2379 if (++I < E) OS << ", ";
2386 OS << "<vector_list " << VectorList.Count << " * "
2387 << VectorList.RegNum << ">";
2389 case k_VectorListAllLanes:
2390 OS << "<vector_list(all lanes) " << VectorList.Count << " * "
2391 << VectorList.RegNum << ">";
2393 case k_VectorListIndexed:
2394 OS << "<vector_list(lane " << VectorList.LaneIndex << ") "
2395 << VectorList.Count << " * " << VectorList.RegNum << ">";
2398 OS << "'" << getToken() << "'";
2401 OS << "<vectorindex " << getVectorIndex() << ">";
2406 /// @name Auto-generated Match Functions
2409 static unsigned MatchRegisterName(StringRef Name);
2413 bool ARMAsmParser::ParseRegister(unsigned &RegNo,
2414 SMLoc &StartLoc, SMLoc &EndLoc) {
2415 StartLoc = Parser.getTok().getLoc();
2416 RegNo = tryParseRegister();
2417 EndLoc = Parser.getTok().getLoc();
2419 return (RegNo == (unsigned)-1);
2422 /// Try to parse a register name. The token must be an Identifier when called,
2423 /// and if it is a register name the token is eaten and the register number is
2424 /// returned. Otherwise return -1.
2426 int ARMAsmParser::tryParseRegister() {
2427 const AsmToken &Tok = Parser.getTok();
2428 if (Tok.isNot(AsmToken::Identifier)) return -1;
2430 std::string lowerCase = Tok.getString().lower();
2431 unsigned RegNum = MatchRegisterName(lowerCase);
2433 RegNum = StringSwitch<unsigned>(lowerCase)
2434 .Case("r13", ARM::SP)
2435 .Case("r14", ARM::LR)
2436 .Case("r15", ARM::PC)
2437 .Case("ip", ARM::R12)
2438 // Additional register name aliases for 'gas' compatibility.
2439 .Case("a1", ARM::R0)
2440 .Case("a2", ARM::R1)
2441 .Case("a3", ARM::R2)
2442 .Case("a4", ARM::R3)
2443 .Case("v1", ARM::R4)
2444 .Case("v2", ARM::R5)
2445 .Case("v3", ARM::R6)
2446 .Case("v4", ARM::R7)
2447 .Case("v5", ARM::R8)
2448 .Case("v6", ARM::R9)
2449 .Case("v7", ARM::R10)
2450 .Case("v8", ARM::R11)
2451 .Case("sb", ARM::R9)
2452 .Case("sl", ARM::R10)
2453 .Case("fp", ARM::R11)
2457 // Check for aliases registered via .req. Canonicalize to lower case.
2458 // That's more consistent since register names are case insensitive, and
2459 // it's how the original entry was passed in from MC/MCParser/AsmParser.
2460 StringMap<unsigned>::const_iterator Entry = RegisterReqs.find(lowerCase);
2461 // If no match, return failure.
2462 if (Entry == RegisterReqs.end())
2464 Parser.Lex(); // Eat identifier token.
2465 return Entry->getValue();
2468 Parser.Lex(); // Eat identifier token.
2473 // Try to parse a shifter (e.g., "lsl <amt>"). On success, return 0.
2474 // If a recoverable error occurs, return 1. If an irrecoverable error
2475 // occurs, return -1. An irrecoverable error is one where tokens have been
2476 // consumed in the process of trying to parse the shifter (i.e., when it is
2477 // indeed a shifter operand, but malformed).
2478 int ARMAsmParser::tryParseShiftRegister(
2479 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2480 SMLoc S = Parser.getTok().getLoc();
2481 const AsmToken &Tok = Parser.getTok();
2482 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
2484 std::string lowerCase = Tok.getString().lower();
2485 ARM_AM::ShiftOpc ShiftTy = StringSwitch<ARM_AM::ShiftOpc>(lowerCase)
2486 .Case("asl", ARM_AM::lsl)
2487 .Case("lsl", ARM_AM::lsl)
2488 .Case("lsr", ARM_AM::lsr)
2489 .Case("asr", ARM_AM::asr)
2490 .Case("ror", ARM_AM::ror)
2491 .Case("rrx", ARM_AM::rrx)
2492 .Default(ARM_AM::no_shift);
2494 if (ShiftTy == ARM_AM::no_shift)
2497 Parser.Lex(); // Eat the operator.
2499 // The source register for the shift has already been added to the
2500 // operand list, so we need to pop it off and combine it into the shifted
2501 // register operand instead.
2502 OwningPtr<ARMOperand> PrevOp((ARMOperand*)Operands.pop_back_val());
2503 if (!PrevOp->isReg())
2504 return Error(PrevOp->getStartLoc(), "shift must be of a register");
2505 int SrcReg = PrevOp->getReg();
2508 if (ShiftTy == ARM_AM::rrx) {
2509 // RRX Doesn't have an explicit shift amount. The encoder expects
2510 // the shift register to be the same as the source register. Seems odd,
2514 // Figure out if this is shifted by a constant or a register (for non-RRX).
2515 if (Parser.getTok().is(AsmToken::Hash) ||
2516 Parser.getTok().is(AsmToken::Dollar)) {
2517 Parser.Lex(); // Eat hash.
2518 SMLoc ImmLoc = Parser.getTok().getLoc();
2519 const MCExpr *ShiftExpr = 0;
2520 if (getParser().ParseExpression(ShiftExpr)) {
2521 Error(ImmLoc, "invalid immediate shift value");
2524 // The expression must be evaluatable as an immediate.
2525 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftExpr);
2527 Error(ImmLoc, "invalid immediate shift value");
2530 // Range check the immediate.
2531 // lsl, ror: 0 <= imm <= 31
2532 // lsr, asr: 0 <= imm <= 32
2533 Imm = CE->getValue();
2535 ((ShiftTy == ARM_AM::lsl || ShiftTy == ARM_AM::ror) && Imm > 31) ||
2536 ((ShiftTy == ARM_AM::lsr || ShiftTy == ARM_AM::asr) && Imm > 32)) {
2537 Error(ImmLoc, "immediate shift value out of range");
2540 // shift by zero is a nop. Always send it through as lsl.
2541 // ('as' compatibility)
2543 ShiftTy = ARM_AM::lsl;
2544 } else if (Parser.getTok().is(AsmToken::Identifier)) {
2545 ShiftReg = tryParseRegister();
2546 SMLoc L = Parser.getTok().getLoc();
2547 if (ShiftReg == -1) {
2548 Error (L, "expected immediate or register in shift operand");
2552 Error (Parser.getTok().getLoc(),
2553 "expected immediate or register in shift operand");
2558 if (ShiftReg && ShiftTy != ARM_AM::rrx)
2559 Operands.push_back(ARMOperand::CreateShiftedRegister(ShiftTy, SrcReg,
2561 S, Parser.getTok().getLoc()));
2563 Operands.push_back(ARMOperand::CreateShiftedImmediate(ShiftTy, SrcReg, Imm,
2564 S, Parser.getTok().getLoc()));
2570 /// Try to parse a register name. The token must be an Identifier when called.
2571 /// If it's a register, an AsmOperand is created. Another AsmOperand is created
2572 /// if there is a "writeback". 'true' if it's not a register.
2574 /// TODO this is likely to change to allow different register types and or to
2575 /// parse for a specific register type.
2577 tryParseRegisterWithWriteBack(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2578 SMLoc S = Parser.getTok().getLoc();
2579 int RegNo = tryParseRegister();
2583 Operands.push_back(ARMOperand::CreateReg(RegNo, S, Parser.getTok().getLoc()));
2585 const AsmToken &ExclaimTok = Parser.getTok();
2586 if (ExclaimTok.is(AsmToken::Exclaim)) {
2587 Operands.push_back(ARMOperand::CreateToken(ExclaimTok.getString(),
2588 ExclaimTok.getLoc()));
2589 Parser.Lex(); // Eat exclaim token
2593 // Also check for an index operand. This is only legal for vector registers,
2594 // but that'll get caught OK in operand matching, so we don't need to
2595 // explicitly filter everything else out here.
2596 if (Parser.getTok().is(AsmToken::LBrac)) {
2597 SMLoc SIdx = Parser.getTok().getLoc();
2598 Parser.Lex(); // Eat left bracket token.
2600 const MCExpr *ImmVal;
2601 if (getParser().ParseExpression(ImmVal))
2603 const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(ImmVal);
2605 return TokError("immediate value expected for vector index");
2607 SMLoc E = Parser.getTok().getLoc();
2608 if (Parser.getTok().isNot(AsmToken::RBrac))
2609 return Error(E, "']' expected");
2611 Parser.Lex(); // Eat right bracket token.
2613 Operands.push_back(ARMOperand::CreateVectorIndex(MCE->getValue(),
2621 /// MatchCoprocessorOperandName - Try to parse an coprocessor related
2622 /// instruction with a symbolic operand name. Example: "p1", "p7", "c3",
2624 static int MatchCoprocessorOperandName(StringRef Name, char CoprocOp) {
2625 // Use the same layout as the tablegen'erated register name matcher. Ugly,
2627 switch (Name.size()) {
2630 if (Name[0] != CoprocOp)
2646 if (Name[0] != CoprocOp || Name[1] != '1')
2650 case '0': return 10;
2651 case '1': return 11;
2652 case '2': return 12;
2653 case '3': return 13;
2654 case '4': return 14;
2655 case '5': return 15;
2660 /// parseITCondCode - Try to parse a condition code for an IT instruction.
2661 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2662 parseITCondCode(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2663 SMLoc S = Parser.getTok().getLoc();
2664 const AsmToken &Tok = Parser.getTok();
2665 if (!Tok.is(AsmToken::Identifier))
2666 return MatchOperand_NoMatch;
2667 unsigned CC = StringSwitch<unsigned>(Tok.getString())
2668 .Case("eq", ARMCC::EQ)
2669 .Case("ne", ARMCC::NE)
2670 .Case("hs", ARMCC::HS)
2671 .Case("cs", ARMCC::HS)
2672 .Case("lo", ARMCC::LO)
2673 .Case("cc", ARMCC::LO)
2674 .Case("mi", ARMCC::MI)
2675 .Case("pl", ARMCC::PL)
2676 .Case("vs", ARMCC::VS)
2677 .Case("vc", ARMCC::VC)
2678 .Case("hi", ARMCC::HI)
2679 .Case("ls", ARMCC::LS)
2680 .Case("ge", ARMCC::GE)
2681 .Case("lt", ARMCC::LT)
2682 .Case("gt", ARMCC::GT)
2683 .Case("le", ARMCC::LE)
2684 .Case("al", ARMCC::AL)
2687 return MatchOperand_NoMatch;
2688 Parser.Lex(); // Eat the token.
2690 Operands.push_back(ARMOperand::CreateCondCode(ARMCC::CondCodes(CC), S));
2692 return MatchOperand_Success;
2695 /// parseCoprocNumOperand - Try to parse an coprocessor number operand. The
2696 /// token must be an Identifier when called, and if it is a coprocessor
2697 /// number, the token is eaten and the operand is added to the operand list.
2698 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2699 parseCoprocNumOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2700 SMLoc S = Parser.getTok().getLoc();
2701 const AsmToken &Tok = Parser.getTok();
2702 if (Tok.isNot(AsmToken::Identifier))
2703 return MatchOperand_NoMatch;
2705 int Num = MatchCoprocessorOperandName(Tok.getString(), 'p');
2707 return MatchOperand_NoMatch;
2709 Parser.Lex(); // Eat identifier token.
2710 Operands.push_back(ARMOperand::CreateCoprocNum(Num, S));
2711 return MatchOperand_Success;
2714 /// parseCoprocRegOperand - Try to parse an coprocessor register operand. The
2715 /// token must be an Identifier when called, and if it is a coprocessor
2716 /// number, the token is eaten and the operand is added to the operand list.
2717 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2718 parseCoprocRegOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2719 SMLoc S = Parser.getTok().getLoc();
2720 const AsmToken &Tok = Parser.getTok();
2721 if (Tok.isNot(AsmToken::Identifier))
2722 return MatchOperand_NoMatch;
2724 int Reg = MatchCoprocessorOperandName(Tok.getString(), 'c');
2726 return MatchOperand_NoMatch;
2728 Parser.Lex(); // Eat identifier token.
2729 Operands.push_back(ARMOperand::CreateCoprocReg(Reg, S));
2730 return MatchOperand_Success;
2733 /// parseCoprocOptionOperand - Try to parse an coprocessor option operand.
2734 /// coproc_option : '{' imm0_255 '}'
2735 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2736 parseCoprocOptionOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2737 SMLoc S = Parser.getTok().getLoc();
2739 // If this isn't a '{', this isn't a coprocessor immediate operand.
2740 if (Parser.getTok().isNot(AsmToken::LCurly))
2741 return MatchOperand_NoMatch;
2742 Parser.Lex(); // Eat the '{'
2745 SMLoc Loc = Parser.getTok().getLoc();
2746 if (getParser().ParseExpression(Expr)) {
2747 Error(Loc, "illegal expression");
2748 return MatchOperand_ParseFail;
2750 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
2751 if (!CE || CE->getValue() < 0 || CE->getValue() > 255) {
2752 Error(Loc, "coprocessor option must be an immediate in range [0, 255]");
2753 return MatchOperand_ParseFail;
2755 int Val = CE->getValue();
2757 // Check for and consume the closing '}'
2758 if (Parser.getTok().isNot(AsmToken::RCurly))
2759 return MatchOperand_ParseFail;
2760 SMLoc E = Parser.getTok().getLoc();
2761 Parser.Lex(); // Eat the '}'
2763 Operands.push_back(ARMOperand::CreateCoprocOption(Val, S, E));
2764 return MatchOperand_Success;
2767 // For register list parsing, we need to map from raw GPR register numbering
2768 // to the enumeration values. The enumeration values aren't sorted by
2769 // register number due to our using "sp", "lr" and "pc" as canonical names.
2770 static unsigned getNextRegister(unsigned Reg) {
2771 // If this is a GPR, we need to do it manually, otherwise we can rely
2772 // on the sort ordering of the enumeration since the other reg-classes
2774 if (!ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
2777 default: llvm_unreachable("Invalid GPR number!");
2778 case ARM::R0: return ARM::R1; case ARM::R1: return ARM::R2;
2779 case ARM::R2: return ARM::R3; case ARM::R3: return ARM::R4;
2780 case ARM::R4: return ARM::R5; case ARM::R5: return ARM::R6;
2781 case ARM::R6: return ARM::R7; case ARM::R7: return ARM::R8;
2782 case ARM::R8: return ARM::R9; case ARM::R9: return ARM::R10;
2783 case ARM::R10: return ARM::R11; case ARM::R11: return ARM::R12;
2784 case ARM::R12: return ARM::SP; case ARM::SP: return ARM::LR;
2785 case ARM::LR: return ARM::PC; case ARM::PC: return ARM::R0;
2789 // Return the low-subreg of a given Q register.
2790 static unsigned getDRegFromQReg(unsigned QReg) {
2792 default: llvm_unreachable("expected a Q register!");
2793 case ARM::Q0: return ARM::D0;
2794 case ARM::Q1: return ARM::D2;
2795 case ARM::Q2: return ARM::D4;
2796 case ARM::Q3: return ARM::D6;
2797 case ARM::Q4: return ARM::D8;
2798 case ARM::Q5: return ARM::D10;
2799 case ARM::Q6: return ARM::D12;
2800 case ARM::Q7: return ARM::D14;
2801 case ARM::Q8: return ARM::D16;
2802 case ARM::Q9: return ARM::D18;
2803 case ARM::Q10: return ARM::D20;
2804 case ARM::Q11: return ARM::D22;
2805 case ARM::Q12: return ARM::D24;
2806 case ARM::Q13: return ARM::D26;
2807 case ARM::Q14: return ARM::D28;
2808 case ARM::Q15: return ARM::D30;
2812 /// Parse a register list.
2814 parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2815 assert(Parser.getTok().is(AsmToken::LCurly) &&
2816 "Token is not a Left Curly Brace");
2817 SMLoc S = Parser.getTok().getLoc();
2818 Parser.Lex(); // Eat '{' token.
2819 SMLoc RegLoc = Parser.getTok().getLoc();
2821 // Check the first register in the list to see what register class
2822 // this is a list of.
2823 int Reg = tryParseRegister();
2825 return Error(RegLoc, "register expected");
2827 // The reglist instructions have at most 16 registers, so reserve
2828 // space for that many.
2829 SmallVector<std::pair<unsigned, SMLoc>, 16> Registers;
2831 // Allow Q regs and just interpret them as the two D sub-registers.
2832 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
2833 Reg = getDRegFromQReg(Reg);
2834 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2837 const MCRegisterClass *RC;
2838 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
2839 RC = &ARMMCRegisterClasses[ARM::GPRRegClassID];
2840 else if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg))
2841 RC = &ARMMCRegisterClasses[ARM::DPRRegClassID];
2842 else if (ARMMCRegisterClasses[ARM::SPRRegClassID].contains(Reg))
2843 RC = &ARMMCRegisterClasses[ARM::SPRRegClassID];
2845 return Error(RegLoc, "invalid register in register list");
2847 // Store the register.
2848 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2850 // This starts immediately after the first register token in the list,
2851 // so we can see either a comma or a minus (range separator) as a legal
2853 while (Parser.getTok().is(AsmToken::Comma) ||
2854 Parser.getTok().is(AsmToken::Minus)) {
2855 if (Parser.getTok().is(AsmToken::Minus)) {
2856 Parser.Lex(); // Eat the minus.
2857 SMLoc EndLoc = Parser.getTok().getLoc();
2858 int EndReg = tryParseRegister();
2860 return Error(EndLoc, "register expected");
2861 // Allow Q regs and just interpret them as the two D sub-registers.
2862 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
2863 EndReg = getDRegFromQReg(EndReg) + 1;
2864 // If the register is the same as the start reg, there's nothing
2868 // The register must be in the same register class as the first.
2869 if (!RC->contains(EndReg))
2870 return Error(EndLoc, "invalid register in register list");
2871 // Ranges must go from low to high.
2872 if (getARMRegisterNumbering(Reg) > getARMRegisterNumbering(EndReg))
2873 return Error(EndLoc, "bad range in register list");
2875 // Add all the registers in the range to the register list.
2876 while (Reg != EndReg) {
2877 Reg = getNextRegister(Reg);
2878 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2882 Parser.Lex(); // Eat the comma.
2883 RegLoc = Parser.getTok().getLoc();
2885 const AsmToken RegTok = Parser.getTok();
2886 Reg = tryParseRegister();
2888 return Error(RegLoc, "register expected");
2889 // Allow Q regs and just interpret them as the two D sub-registers.
2890 bool isQReg = false;
2891 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
2892 Reg = getDRegFromQReg(Reg);
2895 // The register must be in the same register class as the first.
2896 if (!RC->contains(Reg))
2897 return Error(RegLoc, "invalid register in register list");
2898 // List must be monotonically increasing.
2899 if (getARMRegisterNumbering(Reg) < getARMRegisterNumbering(OldReg)) {
2900 if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
2901 Warning(RegLoc, "register list not in ascending order");
2903 return Error(RegLoc, "register list not in ascending order");
2905 if (getARMRegisterNumbering(Reg) == getARMRegisterNumbering(OldReg)) {
2906 Warning(RegLoc, "duplicated register (" + RegTok.getString() +
2907 ") in register list");
2910 // VFP register lists must also be contiguous.
2911 // It's OK to use the enumeration values directly here rather, as the
2912 // VFP register classes have the enum sorted properly.
2913 if (RC != &ARMMCRegisterClasses[ARM::GPRRegClassID] &&
2915 return Error(RegLoc, "non-contiguous register range");
2916 Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
2918 Registers.push_back(std::pair<unsigned, SMLoc>(++Reg, RegLoc));
2921 SMLoc E = Parser.getTok().getLoc();
2922 if (Parser.getTok().isNot(AsmToken::RCurly))
2923 return Error(E, "'}' expected");
2924 Parser.Lex(); // Eat '}' token.
2926 // Push the register list operand.
2927 Operands.push_back(ARMOperand::CreateRegList(Registers, S, E));
2929 // The ARM system instruction variants for LDM/STM have a '^' token here.
2930 if (Parser.getTok().is(AsmToken::Caret)) {
2931 Operands.push_back(ARMOperand::CreateToken("^",Parser.getTok().getLoc()));
2932 Parser.Lex(); // Eat '^' token.
2938 // Helper function to parse the lane index for vector lists.
2939 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2940 parseVectorLane(VectorLaneTy &LaneKind, unsigned &Index) {
2941 Index = 0; // Always return a defined index value.
2942 if (Parser.getTok().is(AsmToken::LBrac)) {
2943 Parser.Lex(); // Eat the '['.
2944 if (Parser.getTok().is(AsmToken::RBrac)) {
2945 // "Dn[]" is the 'all lanes' syntax.
2946 LaneKind = AllLanes;
2947 Parser.Lex(); // Eat the ']'.
2948 return MatchOperand_Success;
2951 // There's an optional '#' token here. Normally there wouldn't be, but
2952 // inline assemble puts one in, and it's friendly to accept that.
2953 if (Parser.getTok().is(AsmToken::Hash))
2954 Parser.Lex(); // Eat the '#'
2956 const MCExpr *LaneIndex;
2957 SMLoc Loc = Parser.getTok().getLoc();
2958 if (getParser().ParseExpression(LaneIndex)) {
2959 Error(Loc, "illegal expression");
2960 return MatchOperand_ParseFail;
2962 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LaneIndex);
2964 Error(Loc, "lane index must be empty or an integer");
2965 return MatchOperand_ParseFail;
2967 if (Parser.getTok().isNot(AsmToken::RBrac)) {
2968 Error(Parser.getTok().getLoc(), "']' expected");
2969 return MatchOperand_ParseFail;
2971 Parser.Lex(); // Eat the ']'.
2972 int64_t Val = CE->getValue();
2974 // FIXME: Make this range check context sensitive for .8, .16, .32.
2975 if (Val < 0 || Val > 7) {
2976 Error(Parser.getTok().getLoc(), "lane index out of range");
2977 return MatchOperand_ParseFail;
2980 LaneKind = IndexedLane;
2981 return MatchOperand_Success;
2984 return MatchOperand_Success;
2987 // parse a vector register list
2988 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
2989 parseVectorList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
2990 VectorLaneTy LaneKind;
2992 SMLoc S = Parser.getTok().getLoc();
2993 // As an extension (to match gas), support a plain D register or Q register
2994 // (without encosing curly braces) as a single or double entry list,
2996 if (Parser.getTok().is(AsmToken::Identifier)) {
2997 int Reg = tryParseRegister();
2999 return MatchOperand_NoMatch;
3000 SMLoc E = Parser.getTok().getLoc();
3001 if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg)) {
3002 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex);
3003 if (Res != MatchOperand_Success)
3007 E = Parser.getTok().getLoc();
3008 Operands.push_back(ARMOperand::CreateVectorList(Reg, 1, false, S, E));
3011 E = Parser.getTok().getLoc();
3012 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 1, false,
3016 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 1,
3021 return MatchOperand_Success;
3023 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3024 Reg = getDRegFromQReg(Reg);
3025 OperandMatchResultTy Res = parseVectorLane(LaneKind, LaneIndex);
3026 if (Res != MatchOperand_Success)
3030 E = Parser.getTok().getLoc();
3031 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3032 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3033 Operands.push_back(ARMOperand::CreateVectorList(Reg, 2, false, S, E));
3036 E = Parser.getTok().getLoc();
3037 Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
3038 &ARMMCRegisterClasses[ARM::DPairRegClassID]);
3039 Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 2, false,
3043 Operands.push_back(ARMOperand::CreateVectorListIndexed(Reg, 2,
3048 return MatchOperand_Success;
3050 Error(S, "vector register expected");
3051 return MatchOperand_ParseFail;
3054 if (Parser.getTok().isNot(AsmToken::LCurly))
3055 return MatchOperand_NoMatch;
3057 Parser.Lex(); // Eat '{' token.
3058 SMLoc RegLoc = Parser.getTok().getLoc();
3060 int Reg = tryParseRegister();
3062 Error(RegLoc, "register expected");
3063 return MatchOperand_ParseFail;
3067 unsigned FirstReg = Reg;
3068 // The list is of D registers, but we also allow Q regs and just interpret
3069 // them as the two D sub-registers.
3070 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3071 FirstReg = Reg = getDRegFromQReg(Reg);
3072 Spacing = 1; // double-spacing requires explicit D registers, otherwise
3073 // it's ambiguous with four-register single spaced.
3077 if (parseVectorLane(LaneKind, LaneIndex) != MatchOperand_Success)
3078 return MatchOperand_ParseFail;
3080 while (Parser.getTok().is(AsmToken::Comma) ||
3081 Parser.getTok().is(AsmToken::Minus)) {
3082 if (Parser.getTok().is(AsmToken::Minus)) {
3084 Spacing = 1; // Register range implies a single spaced list.
3085 else if (Spacing == 2) {
3086 Error(Parser.getTok().getLoc(),
3087 "sequential registers in double spaced list");
3088 return MatchOperand_ParseFail;
3090 Parser.Lex(); // Eat the minus.
3091 SMLoc EndLoc = Parser.getTok().getLoc();
3092 int EndReg = tryParseRegister();
3094 Error(EndLoc, "register expected");
3095 return MatchOperand_ParseFail;
3097 // Allow Q regs and just interpret them as the two D sub-registers.
3098 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
3099 EndReg = getDRegFromQReg(EndReg) + 1;
3100 // If the register is the same as the start reg, there's nothing
3104 // The register must be in the same register class as the first.
3105 if (!ARMMCRegisterClasses[ARM::DPRRegClassID].contains(EndReg)) {
3106 Error(EndLoc, "invalid register in register list");
3107 return MatchOperand_ParseFail;
3109 // Ranges must go from low to high.
3111 Error(EndLoc, "bad range in register list");
3112 return MatchOperand_ParseFail;
3114 // Parse the lane specifier if present.
3115 VectorLaneTy NextLaneKind;
3116 unsigned NextLaneIndex;
3117 if (parseVectorLane(NextLaneKind, NextLaneIndex) != MatchOperand_Success)
3118 return MatchOperand_ParseFail;
3119 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3120 Error(EndLoc, "mismatched lane index in register list");
3121 return MatchOperand_ParseFail;
3123 EndLoc = Parser.getTok().getLoc();
3125 // Add all the registers in the range to the register list.
3126 Count += EndReg - Reg;
3130 Parser.Lex(); // Eat the comma.
3131 RegLoc = Parser.getTok().getLoc();
3133 Reg = tryParseRegister();
3135 Error(RegLoc, "register expected");
3136 return MatchOperand_ParseFail;
3138 // vector register lists must be contiguous.
3139 // It's OK to use the enumeration values directly here rather, as the
3140 // VFP register classes have the enum sorted properly.
3142 // The list is of D registers, but we also allow Q regs and just interpret
3143 // them as the two D sub-registers.
3144 if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
3146 Spacing = 1; // Register range implies a single spaced list.
3147 else if (Spacing == 2) {
3149 "invalid register in double-spaced list (must be 'D' register')");
3150 return MatchOperand_ParseFail;
3152 Reg = getDRegFromQReg(Reg);
3153 if (Reg != OldReg + 1) {
3154 Error(RegLoc, "non-contiguous register range");
3155 return MatchOperand_ParseFail;
3159 // Parse the lane specifier if present.
3160 VectorLaneTy NextLaneKind;
3161 unsigned NextLaneIndex;
3162 SMLoc EndLoc = Parser.getTok().getLoc();
3163 if (parseVectorLane(NextLaneKind, NextLaneIndex) != MatchOperand_Success)
3164 return MatchOperand_ParseFail;
3165 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3166 Error(EndLoc, "mismatched lane index in register list");
3167 return MatchOperand_ParseFail;
3171 // Normal D register.
3172 // Figure out the register spacing (single or double) of the list if
3173 // we don't know it already.
3175 Spacing = 1 + (Reg == OldReg + 2);
3177 // Just check that it's contiguous and keep going.
3178 if (Reg != OldReg + Spacing) {
3179 Error(RegLoc, "non-contiguous register range");
3180 return MatchOperand_ParseFail;
3183 // Parse the lane specifier if present.
3184 VectorLaneTy NextLaneKind;
3185 unsigned NextLaneIndex;
3186 SMLoc EndLoc = Parser.getTok().getLoc();
3187 if (parseVectorLane(NextLaneKind, NextLaneIndex) != MatchOperand_Success)
3188 return MatchOperand_ParseFail;
3189 if (NextLaneKind != LaneKind || LaneIndex != NextLaneIndex) {
3190 Error(EndLoc, "mismatched lane index in register list");
3191 return MatchOperand_ParseFail;
3195 SMLoc E = Parser.getTok().getLoc();
3196 if (Parser.getTok().isNot(AsmToken::RCurly)) {
3197 Error(E, "'}' expected");
3198 return MatchOperand_ParseFail;
3200 Parser.Lex(); // Eat '}' token.
3204 // Two-register operands have been converted to the
3205 // composite register classes.
3207 const MCRegisterClass *RC = (Spacing == 1) ?
3208 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3209 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3210 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3213 Operands.push_back(ARMOperand::CreateVectorList(FirstReg, Count,
3214 (Spacing == 2), S, E));
3217 // Two-register operands have been converted to the
3218 // composite register classes.
3220 const MCRegisterClass *RC = (Spacing == 1) ?
3221 &ARMMCRegisterClasses[ARM::DPairRegClassID] :
3222 &ARMMCRegisterClasses[ARM::DPairSpcRegClassID];
3223 FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
3225 Operands.push_back(ARMOperand::CreateVectorListAllLanes(FirstReg, Count,
3230 Operands.push_back(ARMOperand::CreateVectorListIndexed(FirstReg, Count,
3236 return MatchOperand_Success;
3239 /// parseMemBarrierOptOperand - Try to parse DSB/DMB data barrier options.
3240 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3241 parseMemBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3242 SMLoc S = Parser.getTok().getLoc();
3243 const AsmToken &Tok = Parser.getTok();
3244 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
3245 StringRef OptStr = Tok.getString();
3247 unsigned Opt = StringSwitch<unsigned>(OptStr.slice(0, OptStr.size()))
3248 .Case("sy", ARM_MB::SY)
3249 .Case("st", ARM_MB::ST)
3250 .Case("sh", ARM_MB::ISH)
3251 .Case("ish", ARM_MB::ISH)
3252 .Case("shst", ARM_MB::ISHST)
3253 .Case("ishst", ARM_MB::ISHST)
3254 .Case("nsh", ARM_MB::NSH)
3255 .Case("un", ARM_MB::NSH)
3256 .Case("nshst", ARM_MB::NSHST)
3257 .Case("unst", ARM_MB::NSHST)
3258 .Case("osh", ARM_MB::OSH)
3259 .Case("oshst", ARM_MB::OSHST)
3263 return MatchOperand_NoMatch;
3265 Parser.Lex(); // Eat identifier token.
3266 Operands.push_back(ARMOperand::CreateMemBarrierOpt((ARM_MB::MemBOpt)Opt, S));
3267 return MatchOperand_Success;
3270 /// parseProcIFlagsOperand - Try to parse iflags from CPS instruction.
3271 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3272 parseProcIFlagsOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3273 SMLoc S = Parser.getTok().getLoc();
3274 const AsmToken &Tok = Parser.getTok();
3275 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
3276 StringRef IFlagsStr = Tok.getString();
3278 // An iflags string of "none" is interpreted to mean that none of the AIF
3279 // bits are set. Not a terribly useful instruction, but a valid encoding.
3280 unsigned IFlags = 0;
3281 if (IFlagsStr != "none") {
3282 for (int i = 0, e = IFlagsStr.size(); i != e; ++i) {
3283 unsigned Flag = StringSwitch<unsigned>(IFlagsStr.substr(i, 1))
3284 .Case("a", ARM_PROC::A)
3285 .Case("i", ARM_PROC::I)
3286 .Case("f", ARM_PROC::F)
3289 // If some specific iflag is already set, it means that some letter is
3290 // present more than once, this is not acceptable.
3291 if (Flag == ~0U || (IFlags & Flag))
3292 return MatchOperand_NoMatch;
3298 Parser.Lex(); // Eat identifier token.
3299 Operands.push_back(ARMOperand::CreateProcIFlags((ARM_PROC::IFlags)IFlags, S));
3300 return MatchOperand_Success;
3303 /// parseMSRMaskOperand - Try to parse mask flags from MSR instruction.
3304 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3305 parseMSRMaskOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3306 SMLoc S = Parser.getTok().getLoc();
3307 const AsmToken &Tok = Parser.getTok();
3308 assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
3309 StringRef Mask = Tok.getString();
3312 // See ARMv6-M 10.1.1
3313 std::string Name = Mask.lower();
3314 unsigned FlagsVal = StringSwitch<unsigned>(Name)
3324 .Case("primask", 16)
3325 .Case("basepri", 17)
3326 .Case("basepri_max", 18)
3327 .Case("faultmask", 19)
3328 .Case("control", 20)
3331 if (FlagsVal == ~0U)
3332 return MatchOperand_NoMatch;
3334 if (!hasV7Ops() && FlagsVal >= 17 && FlagsVal <= 19)
3335 // basepri, basepri_max and faultmask only valid for V7m.
3336 return MatchOperand_NoMatch;
3338 Parser.Lex(); // Eat identifier token.
3339 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3340 return MatchOperand_Success;
3343 // Split spec_reg from flag, example: CPSR_sxf => "CPSR" and "sxf"
3344 size_t Start = 0, Next = Mask.find('_');
3345 StringRef Flags = "";
3346 std::string SpecReg = Mask.slice(Start, Next).lower();
3347 if (Next != StringRef::npos)
3348 Flags = Mask.slice(Next+1, Mask.size());
3350 // FlagsVal contains the complete mask:
3352 // 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3353 unsigned FlagsVal = 0;
3355 if (SpecReg == "apsr") {
3356 FlagsVal = StringSwitch<unsigned>(Flags)
3357 .Case("nzcvq", 0x8) // same as CPSR_f
3358 .Case("g", 0x4) // same as CPSR_s
3359 .Case("nzcvqg", 0xc) // same as CPSR_fs
3362 if (FlagsVal == ~0U) {
3364 return MatchOperand_NoMatch;
3366 FlagsVal = 8; // No flag
3368 } else if (SpecReg == "cpsr" || SpecReg == "spsr") {
3369 // cpsr_all is an alias for cpsr_fc, as is plain cpsr.
3370 if (Flags == "all" || Flags == "")
3372 for (int i = 0, e = Flags.size(); i != e; ++i) {
3373 unsigned Flag = StringSwitch<unsigned>(Flags.substr(i, 1))
3380 // If some specific flag is already set, it means that some letter is
3381 // present more than once, this is not acceptable.
3382 if (FlagsVal == ~0U || (FlagsVal & Flag))
3383 return MatchOperand_NoMatch;
3386 } else // No match for special register.
3387 return MatchOperand_NoMatch;
3389 // Special register without flags is NOT equivalent to "fc" flags.
3390 // NOTE: This is a divergence from gas' behavior. Uncommenting the following
3391 // two lines would enable gas compatibility at the expense of breaking
3397 // Bit 4: Special Reg (cpsr, apsr => 0; spsr => 1)
3398 if (SpecReg == "spsr")
3401 Parser.Lex(); // Eat identifier token.
3402 Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
3403 return MatchOperand_Success;
3406 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3407 parsePKHImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands, StringRef Op,
3408 int Low, int High) {
3409 const AsmToken &Tok = Parser.getTok();
3410 if (Tok.isNot(AsmToken::Identifier)) {
3411 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3412 return MatchOperand_ParseFail;
3414 StringRef ShiftName = Tok.getString();
3415 std::string LowerOp = Op.lower();
3416 std::string UpperOp = Op.upper();
3417 if (ShiftName != LowerOp && ShiftName != UpperOp) {
3418 Error(Parser.getTok().getLoc(), Op + " operand expected.");
3419 return MatchOperand_ParseFail;
3421 Parser.Lex(); // Eat shift type token.
3423 // There must be a '#' and a shift amount.
3424 if (Parser.getTok().isNot(AsmToken::Hash) &&
3425 Parser.getTok().isNot(AsmToken::Dollar)) {
3426 Error(Parser.getTok().getLoc(), "'#' expected");
3427 return MatchOperand_ParseFail;
3429 Parser.Lex(); // Eat hash token.
3431 const MCExpr *ShiftAmount;
3432 SMLoc Loc = Parser.getTok().getLoc();
3433 if (getParser().ParseExpression(ShiftAmount)) {
3434 Error(Loc, "illegal expression");
3435 return MatchOperand_ParseFail;
3437 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3439 Error(Loc, "constant expression expected");
3440 return MatchOperand_ParseFail;
3442 int Val = CE->getValue();
3443 if (Val < Low || Val > High) {
3444 Error(Loc, "immediate value out of range");
3445 return MatchOperand_ParseFail;
3448 Operands.push_back(ARMOperand::CreateImm(CE, Loc, Parser.getTok().getLoc()));
3450 return MatchOperand_Success;
3453 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3454 parseSetEndImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3455 const AsmToken &Tok = Parser.getTok();
3456 SMLoc S = Tok.getLoc();
3457 if (Tok.isNot(AsmToken::Identifier)) {
3458 Error(Tok.getLoc(), "'be' or 'le' operand expected");
3459 return MatchOperand_ParseFail;
3461 int Val = StringSwitch<int>(Tok.getString())
3465 Parser.Lex(); // Eat the token.
3468 Error(Tok.getLoc(), "'be' or 'le' operand expected");
3469 return MatchOperand_ParseFail;
3471 Operands.push_back(ARMOperand::CreateImm(MCConstantExpr::Create(Val,
3473 S, Parser.getTok().getLoc()));
3474 return MatchOperand_Success;
3477 /// parseShifterImm - Parse the shifter immediate operand for SSAT/USAT
3478 /// instructions. Legal values are:
3479 /// lsl #n 'n' in [0,31]
3480 /// asr #n 'n' in [1,32]
3481 /// n == 32 encoded as n == 0.
3482 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3483 parseShifterImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3484 const AsmToken &Tok = Parser.getTok();
3485 SMLoc S = Tok.getLoc();
3486 if (Tok.isNot(AsmToken::Identifier)) {
3487 Error(S, "shift operator 'asr' or 'lsl' expected");
3488 return MatchOperand_ParseFail;
3490 StringRef ShiftName = Tok.getString();
3492 if (ShiftName == "lsl" || ShiftName == "LSL")
3494 else if (ShiftName == "asr" || ShiftName == "ASR")
3497 Error(S, "shift operator 'asr' or 'lsl' expected");
3498 return MatchOperand_ParseFail;
3500 Parser.Lex(); // Eat the operator.
3502 // A '#' and a shift amount.
3503 if (Parser.getTok().isNot(AsmToken::Hash) &&
3504 Parser.getTok().isNot(AsmToken::Dollar)) {
3505 Error(Parser.getTok().getLoc(), "'#' expected");
3506 return MatchOperand_ParseFail;
3508 Parser.Lex(); // Eat hash token.
3510 const MCExpr *ShiftAmount;
3511 SMLoc E = Parser.getTok().getLoc();
3512 if (getParser().ParseExpression(ShiftAmount)) {
3513 Error(E, "malformed shift expression");
3514 return MatchOperand_ParseFail;
3516 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3518 Error(E, "shift amount must be an immediate");
3519 return MatchOperand_ParseFail;
3522 int64_t Val = CE->getValue();
3524 // Shift amount must be in [1,32]
3525 if (Val < 1 || Val > 32) {
3526 Error(E, "'asr' shift amount must be in range [1,32]");
3527 return MatchOperand_ParseFail;
3529 // asr #32 encoded as asr #0, but is not allowed in Thumb2 mode.
3530 if (isThumb() && Val == 32) {
3531 Error(E, "'asr #32' shift amount not allowed in Thumb mode");
3532 return MatchOperand_ParseFail;
3534 if (Val == 32) Val = 0;
3536 // Shift amount must be in [1,32]
3537 if (Val < 0 || Val > 31) {
3538 Error(E, "'lsr' shift amount must be in range [0,31]");
3539 return MatchOperand_ParseFail;
3543 E = Parser.getTok().getLoc();
3544 Operands.push_back(ARMOperand::CreateShifterImm(isASR, Val, S, E));
3546 return MatchOperand_Success;
3549 /// parseRotImm - Parse the shifter immediate operand for SXTB/UXTB family
3550 /// of instructions. Legal values are:
3551 /// ror #n 'n' in {0, 8, 16, 24}
3552 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3553 parseRotImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3554 const AsmToken &Tok = Parser.getTok();
3555 SMLoc S = Tok.getLoc();
3556 if (Tok.isNot(AsmToken::Identifier))
3557 return MatchOperand_NoMatch;
3558 StringRef ShiftName = Tok.getString();
3559 if (ShiftName != "ror" && ShiftName != "ROR")
3560 return MatchOperand_NoMatch;
3561 Parser.Lex(); // Eat the operator.
3563 // A '#' and a rotate amount.
3564 if (Parser.getTok().isNot(AsmToken::Hash) &&
3565 Parser.getTok().isNot(AsmToken::Dollar)) {
3566 Error(Parser.getTok().getLoc(), "'#' expected");
3567 return MatchOperand_ParseFail;
3569 Parser.Lex(); // Eat hash token.
3571 const MCExpr *ShiftAmount;
3572 SMLoc E = Parser.getTok().getLoc();
3573 if (getParser().ParseExpression(ShiftAmount)) {
3574 Error(E, "malformed rotate expression");
3575 return MatchOperand_ParseFail;
3577 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ShiftAmount);
3579 Error(E, "rotate amount must be an immediate");
3580 return MatchOperand_ParseFail;
3583 int64_t Val = CE->getValue();
3584 // Shift amount must be in {0, 8, 16, 24} (0 is undocumented extension)
3585 // normally, zero is represented in asm by omitting the rotate operand
3587 if (Val != 8 && Val != 16 && Val != 24 && Val != 0) {
3588 Error(E, "'ror' rotate amount must be 8, 16, or 24");
3589 return MatchOperand_ParseFail;
3592 E = Parser.getTok().getLoc();
3593 Operands.push_back(ARMOperand::CreateRotImm(Val, S, E));
3595 return MatchOperand_Success;
3598 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3599 parseBitfield(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3600 SMLoc S = Parser.getTok().getLoc();
3601 // The bitfield descriptor is really two operands, the LSB and the width.
3602 if (Parser.getTok().isNot(AsmToken::Hash) &&
3603 Parser.getTok().isNot(AsmToken::Dollar)) {
3604 Error(Parser.getTok().getLoc(), "'#' expected");
3605 return MatchOperand_ParseFail;
3607 Parser.Lex(); // Eat hash token.
3609 const MCExpr *LSBExpr;
3610 SMLoc E = Parser.getTok().getLoc();
3611 if (getParser().ParseExpression(LSBExpr)) {
3612 Error(E, "malformed immediate expression");
3613 return MatchOperand_ParseFail;
3615 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(LSBExpr);
3617 Error(E, "'lsb' operand must be an immediate");
3618 return MatchOperand_ParseFail;
3621 int64_t LSB = CE->getValue();
3622 // The LSB must be in the range [0,31]
3623 if (LSB < 0 || LSB > 31) {
3624 Error(E, "'lsb' operand must be in the range [0,31]");
3625 return MatchOperand_ParseFail;
3627 E = Parser.getTok().getLoc();
3629 // Expect another immediate operand.
3630 if (Parser.getTok().isNot(AsmToken::Comma)) {
3631 Error(Parser.getTok().getLoc(), "too few operands");
3632 return MatchOperand_ParseFail;
3634 Parser.Lex(); // Eat hash token.
3635 if (Parser.getTok().isNot(AsmToken::Hash) &&
3636 Parser.getTok().isNot(AsmToken::Dollar)) {
3637 Error(Parser.getTok().getLoc(), "'#' expected");
3638 return MatchOperand_ParseFail;
3640 Parser.Lex(); // Eat hash token.
3642 const MCExpr *WidthExpr;
3643 if (getParser().ParseExpression(WidthExpr)) {
3644 Error(E, "malformed immediate expression");
3645 return MatchOperand_ParseFail;
3647 CE = dyn_cast<MCConstantExpr>(WidthExpr);
3649 Error(E, "'width' operand must be an immediate");
3650 return MatchOperand_ParseFail;
3653 int64_t Width = CE->getValue();
3654 // The LSB must be in the range [1,32-lsb]
3655 if (Width < 1 || Width > 32 - LSB) {
3656 Error(E, "'width' operand must be in the range [1,32-lsb]");
3657 return MatchOperand_ParseFail;
3659 E = Parser.getTok().getLoc();
3661 Operands.push_back(ARMOperand::CreateBitfield(LSB, Width, S, E));
3663 return MatchOperand_Success;
3666 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3667 parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3668 // Check for a post-index addressing register operand. Specifically:
3669 // postidx_reg := '+' register {, shift}
3670 // | '-' register {, shift}
3671 // | register {, shift}
3673 // This method must return MatchOperand_NoMatch without consuming any tokens
3674 // in the case where there is no match, as other alternatives take other
3676 AsmToken Tok = Parser.getTok();
3677 SMLoc S = Tok.getLoc();
3678 bool haveEaten = false;
3681 if (Tok.is(AsmToken::Plus)) {
3682 Parser.Lex(); // Eat the '+' token.
3684 } else if (Tok.is(AsmToken::Minus)) {
3685 Parser.Lex(); // Eat the '-' token.
3689 if (Parser.getTok().is(AsmToken::Identifier))
3690 Reg = tryParseRegister();
3693 return MatchOperand_NoMatch;
3694 Error(Parser.getTok().getLoc(), "register expected");
3695 return MatchOperand_ParseFail;
3697 SMLoc E = Parser.getTok().getLoc();
3699 ARM_AM::ShiftOpc ShiftTy = ARM_AM::no_shift;
3700 unsigned ShiftImm = 0;
3701 if (Parser.getTok().is(AsmToken::Comma)) {
3702 Parser.Lex(); // Eat the ','.
3703 if (parseMemRegOffsetShift(ShiftTy, ShiftImm))
3704 return MatchOperand_ParseFail;
3707 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ShiftTy,
3710 return MatchOperand_Success;
3713 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
3714 parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3715 // Check for a post-index addressing register operand. Specifically:
3716 // am3offset := '+' register
3723 // This method must return MatchOperand_NoMatch without consuming any tokens
3724 // in the case where there is no match, as other alternatives take other
3726 AsmToken Tok = Parser.getTok();
3727 SMLoc S = Tok.getLoc();
3729 // Do immediates first, as we always parse those if we have a '#'.
3730 if (Parser.getTok().is(AsmToken::Hash) ||
3731 Parser.getTok().is(AsmToken::Dollar)) {
3732 Parser.Lex(); // Eat the '#'.
3733 // Explicitly look for a '-', as we need to encode negative zero
3735 bool isNegative = Parser.getTok().is(AsmToken::Minus);
3736 const MCExpr *Offset;
3737 if (getParser().ParseExpression(Offset))
3738 return MatchOperand_ParseFail;
3739 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
3741 Error(S, "constant expression expected");
3742 return MatchOperand_ParseFail;
3744 SMLoc E = Tok.getLoc();
3745 // Negative zero is encoded as the flag value INT32_MIN.
3746 int32_t Val = CE->getValue();
3747 if (isNegative && Val == 0)
3751 ARMOperand::CreateImm(MCConstantExpr::Create(Val, getContext()), S, E));
3753 return MatchOperand_Success;
3757 bool haveEaten = false;
3760 if (Tok.is(AsmToken::Plus)) {
3761 Parser.Lex(); // Eat the '+' token.
3763 } else if (Tok.is(AsmToken::Minus)) {
3764 Parser.Lex(); // Eat the '-' token.
3768 if (Parser.getTok().is(AsmToken::Identifier))
3769 Reg = tryParseRegister();
3772 return MatchOperand_NoMatch;
3773 Error(Parser.getTok().getLoc(), "register expected");
3774 return MatchOperand_ParseFail;
3776 SMLoc E = Parser.getTok().getLoc();
3778 Operands.push_back(ARMOperand::CreatePostIdxReg(Reg, isAdd, ARM_AM::no_shift,
3781 return MatchOperand_Success;
3784 /// cvtT2LdrdPre - Convert parsed operands to MCInst.
3785 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3786 /// when they refer multiple MIOperands inside a single one.
3788 cvtT2LdrdPre(MCInst &Inst, unsigned Opcode,
3789 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3791 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3792 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
3793 // Create a writeback register dummy placeholder.
3794 Inst.addOperand(MCOperand::CreateReg(0));
3796 ((ARMOperand*)Operands[4])->addMemImm8s4OffsetOperands(Inst, 2);
3798 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3802 /// cvtT2StrdPre - Convert parsed operands to MCInst.
3803 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3804 /// when they refer multiple MIOperands inside a single one.
3806 cvtT2StrdPre(MCInst &Inst, unsigned Opcode,
3807 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3808 // Create a writeback register dummy placeholder.
3809 Inst.addOperand(MCOperand::CreateReg(0));
3811 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3812 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
3814 ((ARMOperand*)Operands[4])->addMemImm8s4OffsetOperands(Inst, 2);
3816 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3820 /// cvtLdWriteBackRegT2AddrModeImm8 - Convert parsed operands to MCInst.
3821 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3822 /// when they refer multiple MIOperands inside a single one.
3824 cvtLdWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
3825 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3826 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3828 // Create a writeback register dummy placeholder.
3829 Inst.addOperand(MCOperand::CreateImm(0));
3831 ((ARMOperand*)Operands[3])->addMemImm8OffsetOperands(Inst, 2);
3832 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3836 /// cvtStWriteBackRegT2AddrModeImm8 - Convert parsed operands to MCInst.
3837 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3838 /// when they refer multiple MIOperands inside a single one.
3840 cvtStWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
3841 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3842 // Create a writeback register dummy placeholder.
3843 Inst.addOperand(MCOperand::CreateImm(0));
3844 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3845 ((ARMOperand*)Operands[3])->addMemImm8OffsetOperands(Inst, 2);
3846 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3850 /// cvtLdWriteBackRegAddrMode2 - Convert parsed operands to MCInst.
3851 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3852 /// when they refer multiple MIOperands inside a single one.
3854 cvtLdWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
3855 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3856 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3858 // Create a writeback register dummy placeholder.
3859 Inst.addOperand(MCOperand::CreateImm(0));
3861 ((ARMOperand*)Operands[3])->addAddrMode2Operands(Inst, 3);
3862 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3866 /// cvtLdWriteBackRegAddrModeImm12 - Convert parsed operands to MCInst.
3867 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3868 /// when they refer multiple MIOperands inside a single one.
3870 cvtLdWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
3871 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3872 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3874 // Create a writeback register dummy placeholder.
3875 Inst.addOperand(MCOperand::CreateImm(0));
3877 ((ARMOperand*)Operands[3])->addMemImm12OffsetOperands(Inst, 2);
3878 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3883 /// cvtStWriteBackRegAddrModeImm12 - Convert parsed operands to MCInst.
3884 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3885 /// when they refer multiple MIOperands inside a single one.
3887 cvtStWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
3888 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3889 // Create a writeback register dummy placeholder.
3890 Inst.addOperand(MCOperand::CreateImm(0));
3891 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3892 ((ARMOperand*)Operands[3])->addMemImm12OffsetOperands(Inst, 2);
3893 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3897 /// cvtStWriteBackRegAddrMode2 - Convert parsed operands to MCInst.
3898 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3899 /// when they refer multiple MIOperands inside a single one.
3901 cvtStWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
3902 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3903 // Create a writeback register dummy placeholder.
3904 Inst.addOperand(MCOperand::CreateImm(0));
3905 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3906 ((ARMOperand*)Operands[3])->addAddrMode2Operands(Inst, 3);
3907 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3911 /// cvtStWriteBackRegAddrMode3 - Convert parsed operands to MCInst.
3912 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3913 /// when they refer multiple MIOperands inside a single one.
3915 cvtStWriteBackRegAddrMode3(MCInst &Inst, unsigned Opcode,
3916 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3917 // Create a writeback register dummy placeholder.
3918 Inst.addOperand(MCOperand::CreateImm(0));
3919 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3920 ((ARMOperand*)Operands[3])->addAddrMode3Operands(Inst, 3);
3921 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3925 /// cvtLdExtTWriteBackImm - Convert parsed operands to MCInst.
3926 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3927 /// when they refer multiple MIOperands inside a single one.
3929 cvtLdExtTWriteBackImm(MCInst &Inst, unsigned Opcode,
3930 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3932 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3933 // Create a writeback register dummy placeholder.
3934 Inst.addOperand(MCOperand::CreateImm(0));
3936 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
3938 ((ARMOperand*)Operands[4])->addPostIdxImm8Operands(Inst, 1);
3940 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3944 /// cvtLdExtTWriteBackReg - Convert parsed operands to MCInst.
3945 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3946 /// when they refer multiple MIOperands inside a single one.
3948 cvtLdExtTWriteBackReg(MCInst &Inst, unsigned Opcode,
3949 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3951 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3952 // Create a writeback register dummy placeholder.
3953 Inst.addOperand(MCOperand::CreateImm(0));
3955 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
3957 ((ARMOperand*)Operands[4])->addPostIdxRegOperands(Inst, 2);
3959 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3963 /// cvtStExtTWriteBackImm - Convert parsed operands to MCInst.
3964 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3965 /// when they refer multiple MIOperands inside a single one.
3967 cvtStExtTWriteBackImm(MCInst &Inst, unsigned Opcode,
3968 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3969 // Create a writeback register dummy placeholder.
3970 Inst.addOperand(MCOperand::CreateImm(0));
3972 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3974 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
3976 ((ARMOperand*)Operands[4])->addPostIdxImm8Operands(Inst, 1);
3978 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
3982 /// cvtStExtTWriteBackReg - Convert parsed operands to MCInst.
3983 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
3984 /// when they refer multiple MIOperands inside a single one.
3986 cvtStExtTWriteBackReg(MCInst &Inst, unsigned Opcode,
3987 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
3988 // Create a writeback register dummy placeholder.
3989 Inst.addOperand(MCOperand::CreateImm(0));
3991 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
3993 ((ARMOperand*)Operands[3])->addMemNoOffsetOperands(Inst, 1);
3995 ((ARMOperand*)Operands[4])->addPostIdxRegOperands(Inst, 2);
3997 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4001 /// cvtLdrdPre - Convert parsed operands to MCInst.
4002 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4003 /// when they refer multiple MIOperands inside a single one.
4005 cvtLdrdPre(MCInst &Inst, unsigned Opcode,
4006 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4008 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4009 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4010 // Create a writeback register dummy placeholder.
4011 Inst.addOperand(MCOperand::CreateImm(0));
4013 ((ARMOperand*)Operands[4])->addAddrMode3Operands(Inst, 3);
4015 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4019 /// cvtStrdPre - Convert parsed operands to MCInst.
4020 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4021 /// when they refer multiple MIOperands inside a single one.
4023 cvtStrdPre(MCInst &Inst, unsigned Opcode,
4024 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4025 // Create a writeback register dummy placeholder.
4026 Inst.addOperand(MCOperand::CreateImm(0));
4028 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4029 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4031 ((ARMOperand*)Operands[4])->addAddrMode3Operands(Inst, 3);
4033 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4037 /// cvtLdWriteBackRegAddrMode3 - Convert parsed operands to MCInst.
4038 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4039 /// when they refer multiple MIOperands inside a single one.
4041 cvtLdWriteBackRegAddrMode3(MCInst &Inst, unsigned Opcode,
4042 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4043 ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
4044 // Create a writeback register dummy placeholder.
4045 Inst.addOperand(MCOperand::CreateImm(0));
4046 ((ARMOperand*)Operands[3])->addAddrMode3Operands(Inst, 3);
4047 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4051 /// cvtThumbMultiple- Convert parsed operands to MCInst.
4052 /// Needed here because the Asm Gen Matcher can't handle properly tied operands
4053 /// when they refer multiple MIOperands inside a single one.
4055 cvtThumbMultiply(MCInst &Inst, unsigned Opcode,
4056 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4057 // The second source operand must be the same register as the destination
4059 if (Operands.size() == 6 &&
4060 (((ARMOperand*)Operands[3])->getReg() !=
4061 ((ARMOperand*)Operands[5])->getReg()) &&
4062 (((ARMOperand*)Operands[3])->getReg() !=
4063 ((ARMOperand*)Operands[4])->getReg())) {
4064 Error(Operands[3]->getStartLoc(),
4065 "destination register must match source register");
4068 ((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
4069 ((ARMOperand*)Operands[1])->addCCOutOperands(Inst, 1);
4070 // If we have a three-operand form, make sure to set Rn to be the operand
4071 // that isn't the same as Rd.
4073 if (Operands.size() == 6 &&
4074 ((ARMOperand*)Operands[4])->getReg() ==
4075 ((ARMOperand*)Operands[3])->getReg())
4077 ((ARMOperand*)Operands[RegOp])->addRegOperands(Inst, 1);
4078 Inst.addOperand(Inst.getOperand(0));
4079 ((ARMOperand*)Operands[2])->addCondCodeOperands(Inst, 2);
4085 cvtVLDwbFixed(MCInst &Inst, unsigned Opcode,
4086 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4088 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4089 // Create a writeback register dummy placeholder.
4090 Inst.addOperand(MCOperand::CreateImm(0));
4092 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4094 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4099 cvtVLDwbRegister(MCInst &Inst, unsigned Opcode,
4100 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4102 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4103 // Create a writeback register dummy placeholder.
4104 Inst.addOperand(MCOperand::CreateImm(0));
4106 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4108 ((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
4110 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4115 cvtVSTwbFixed(MCInst &Inst, unsigned Opcode,
4116 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4117 // Create a writeback register dummy placeholder.
4118 Inst.addOperand(MCOperand::CreateImm(0));
4120 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4122 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4124 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4129 cvtVSTwbRegister(MCInst &Inst, unsigned Opcode,
4130 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4131 // Create a writeback register dummy placeholder.
4132 Inst.addOperand(MCOperand::CreateImm(0));
4134 ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
4136 ((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
4138 ((ARMOperand*)Operands[3])->addVecListOperands(Inst, 1);
4140 ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
4144 /// Parse an ARM memory expression, return false if successful else return true
4145 /// or an error. The first token must be a '[' when called.
4147 parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4149 assert(Parser.getTok().is(AsmToken::LBrac) &&
4150 "Token is not a Left Bracket");
4151 S = Parser.getTok().getLoc();
4152 Parser.Lex(); // Eat left bracket token.
4154 const AsmToken &BaseRegTok = Parser.getTok();
4155 int BaseRegNum = tryParseRegister();
4156 if (BaseRegNum == -1)
4157 return Error(BaseRegTok.getLoc(), "register expected");
4159 // The next token must either be a comma or a closing bracket.
4160 const AsmToken &Tok = Parser.getTok();
4161 if (!Tok.is(AsmToken::Comma) && !Tok.is(AsmToken::RBrac))
4162 return Error(Tok.getLoc(), "malformed memory operand");
4164 if (Tok.is(AsmToken::RBrac)) {
4166 Parser.Lex(); // Eat right bracket token.
4168 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0, ARM_AM::no_shift,
4169 0, 0, false, S, E));
4171 // If there's a pre-indexing writeback marker, '!', just add it as a token
4172 // operand. It's rather odd, but syntactically valid.
4173 if (Parser.getTok().is(AsmToken::Exclaim)) {
4174 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4175 Parser.Lex(); // Eat the '!'.
4181 assert(Tok.is(AsmToken::Comma) && "Lost comma in memory operand?!");
4182 Parser.Lex(); // Eat the comma.
4184 // If we have a ':', it's an alignment specifier.
4185 if (Parser.getTok().is(AsmToken::Colon)) {
4186 Parser.Lex(); // Eat the ':'.
4187 E = Parser.getTok().getLoc();
4190 if (getParser().ParseExpression(Expr))
4193 // The expression has to be a constant. Memory references with relocations
4194 // don't come through here, as they use the <label> forms of the relevant
4196 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4198 return Error (E, "constant expression expected");
4201 switch (CE->getValue()) {
4204 "alignment specifier must be 16, 32, 64, 128, or 256 bits");
4205 case 16: Align = 2; break;
4206 case 32: Align = 4; break;
4207 case 64: Align = 8; break;
4208 case 128: Align = 16; break;
4209 case 256: Align = 32; break;
4212 // Now we should have the closing ']'
4213 E = Parser.getTok().getLoc();
4214 if (Parser.getTok().isNot(AsmToken::RBrac))
4215 return Error(E, "']' expected");
4216 Parser.Lex(); // Eat right bracket token.
4218 // Don't worry about range checking the value here. That's handled by
4219 // the is*() predicates.
4220 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0,
4221 ARM_AM::no_shift, 0, Align,
4224 // If there's a pre-indexing writeback marker, '!', just add it as a token
4226 if (Parser.getTok().is(AsmToken::Exclaim)) {
4227 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4228 Parser.Lex(); // Eat the '!'.
4234 // If we have a '#', it's an immediate offset, else assume it's a register
4235 // offset. Be friendly and also accept a plain integer (without a leading
4236 // hash) for gas compatibility.
4237 if (Parser.getTok().is(AsmToken::Hash) ||
4238 Parser.getTok().is(AsmToken::Dollar) ||
4239 Parser.getTok().is(AsmToken::Integer)) {
4240 if (Parser.getTok().isNot(AsmToken::Integer))
4241 Parser.Lex(); // Eat the '#'.
4242 E = Parser.getTok().getLoc();
4244 bool isNegative = getParser().getTok().is(AsmToken::Minus);
4245 const MCExpr *Offset;
4246 if (getParser().ParseExpression(Offset))
4249 // The expression has to be a constant. Memory references with relocations
4250 // don't come through here, as they use the <label> forms of the relevant
4252 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Offset);
4254 return Error (E, "constant expression expected");
4256 // If the constant was #-0, represent it as INT32_MIN.
4257 int32_t Val = CE->getValue();
4258 if (isNegative && Val == 0)
4259 CE = MCConstantExpr::Create(INT32_MIN, getContext());
4261 // Now we should have the closing ']'
4262 E = Parser.getTok().getLoc();
4263 if (Parser.getTok().isNot(AsmToken::RBrac))
4264 return Error(E, "']' expected");
4265 Parser.Lex(); // Eat right bracket token.
4267 // Don't worry about range checking the value here. That's handled by
4268 // the is*() predicates.
4269 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, CE, 0,
4270 ARM_AM::no_shift, 0, 0,
4273 // If there's a pre-indexing writeback marker, '!', just add it as a token
4275 if (Parser.getTok().is(AsmToken::Exclaim)) {
4276 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4277 Parser.Lex(); // Eat the '!'.
4283 // The register offset is optionally preceded by a '+' or '-'
4284 bool isNegative = false;
4285 if (Parser.getTok().is(AsmToken::Minus)) {
4287 Parser.Lex(); // Eat the '-'.
4288 } else if (Parser.getTok().is(AsmToken::Plus)) {
4290 Parser.Lex(); // Eat the '+'.
4293 E = Parser.getTok().getLoc();
4294 int OffsetRegNum = tryParseRegister();
4295 if (OffsetRegNum == -1)
4296 return Error(E, "register expected");
4298 // If there's a shift operator, handle it.
4299 ARM_AM::ShiftOpc ShiftType = ARM_AM::no_shift;
4300 unsigned ShiftImm = 0;
4301 if (Parser.getTok().is(AsmToken::Comma)) {
4302 Parser.Lex(); // Eat the ','.
4303 if (parseMemRegOffsetShift(ShiftType, ShiftImm))
4307 // Now we should have the closing ']'
4308 E = Parser.getTok().getLoc();
4309 if (Parser.getTok().isNot(AsmToken::RBrac))
4310 return Error(E, "']' expected");
4311 Parser.Lex(); // Eat right bracket token.
4313 Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, OffsetRegNum,
4314 ShiftType, ShiftImm, 0, isNegative,
4317 // If there's a pre-indexing writeback marker, '!', just add it as a token
4319 if (Parser.getTok().is(AsmToken::Exclaim)) {
4320 Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
4321 Parser.Lex(); // Eat the '!'.
4327 /// parseMemRegOffsetShift - one of these two:
4328 /// ( lsl | lsr | asr | ror ) , # shift_amount
4330 /// return true if it parses a shift otherwise it returns false.
4331 bool ARMAsmParser::parseMemRegOffsetShift(ARM_AM::ShiftOpc &St,
4333 SMLoc Loc = Parser.getTok().getLoc();
4334 const AsmToken &Tok = Parser.getTok();
4335 if (Tok.isNot(AsmToken::Identifier))
4337 StringRef ShiftName = Tok.getString();
4338 if (ShiftName == "lsl" || ShiftName == "LSL" ||
4339 ShiftName == "asl" || ShiftName == "ASL")
4341 else if (ShiftName == "lsr" || ShiftName == "LSR")
4343 else if (ShiftName == "asr" || ShiftName == "ASR")
4345 else if (ShiftName == "ror" || ShiftName == "ROR")
4347 else if (ShiftName == "rrx" || ShiftName == "RRX")
4350 return Error(Loc, "illegal shift operator");
4351 Parser.Lex(); // Eat shift type token.
4353 // rrx stands alone.
4355 if (St != ARM_AM::rrx) {
4356 Loc = Parser.getTok().getLoc();
4357 // A '#' and a shift amount.
4358 const AsmToken &HashTok = Parser.getTok();
4359 if (HashTok.isNot(AsmToken::Hash) &&
4360 HashTok.isNot(AsmToken::Dollar))
4361 return Error(HashTok.getLoc(), "'#' expected");
4362 Parser.Lex(); // Eat hash token.
4365 if (getParser().ParseExpression(Expr))
4367 // Range check the immediate.
4368 // lsl, ror: 0 <= imm <= 31
4369 // lsr, asr: 0 <= imm <= 32
4370 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
4372 return Error(Loc, "shift amount must be an immediate");
4373 int64_t Imm = CE->getValue();
4375 ((St == ARM_AM::lsl || St == ARM_AM::ror) && Imm > 31) ||
4376 ((St == ARM_AM::lsr || St == ARM_AM::asr) && Imm > 32))
4377 return Error(Loc, "immediate shift value out of range");
4384 /// parseFPImm - A floating point immediate expression operand.
4385 ARMAsmParser::OperandMatchResultTy ARMAsmParser::
4386 parseFPImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4387 // Anything that can accept a floating point constant as an operand
4388 // needs to go through here, as the regular ParseExpression is
4391 // This routine still creates a generic Immediate operand, containing
4392 // a bitcast of the 64-bit floating point value. The various operands
4393 // that accept floats can check whether the value is valid for them
4394 // via the standard is*() predicates.
4396 SMLoc S = Parser.getTok().getLoc();
4398 if (Parser.getTok().isNot(AsmToken::Hash) &&
4399 Parser.getTok().isNot(AsmToken::Dollar))
4400 return MatchOperand_NoMatch;
4402 // Disambiguate the VMOV forms that can accept an FP immediate.
4403 // vmov.f32 <sreg>, #imm
4404 // vmov.f64 <dreg>, #imm
4405 // vmov.f32 <dreg>, #imm @ vector f32x2
4406 // vmov.f32 <qreg>, #imm @ vector f32x4
4408 // There are also the NEON VMOV instructions which expect an
4409 // integer constant. Make sure we don't try to parse an FPImm
4411 // vmov.i{8|16|32|64} <dreg|qreg>, #imm
4412 ARMOperand *TyOp = static_cast<ARMOperand*>(Operands[2]);
4413 if (!TyOp->isToken() || (TyOp->getToken() != ".f32" &&
4414 TyOp->getToken() != ".f64"))
4415 return MatchOperand_NoMatch;
4417 Parser.Lex(); // Eat the '#'.
4419 // Handle negation, as that still comes through as a separate token.
4420 bool isNegative = false;
4421 if (Parser.getTok().is(AsmToken::Minus)) {
4425 const AsmToken &Tok = Parser.getTok();
4426 SMLoc Loc = Tok.getLoc();
4427 if (Tok.is(AsmToken::Real)) {
4428 APFloat RealVal(APFloat::IEEEsingle, Tok.getString());
4429 uint64_t IntVal = RealVal.bitcastToAPInt().getZExtValue();
4430 // If we had a '-' in front, toggle the sign bit.
4431 IntVal ^= (uint64_t)isNegative << 31;
4432 Parser.Lex(); // Eat the token.
4433 Operands.push_back(ARMOperand::CreateImm(
4434 MCConstantExpr::Create(IntVal, getContext()),
4435 S, Parser.getTok().getLoc()));
4436 return MatchOperand_Success;
4438 // Also handle plain integers. Instructions which allow floating point
4439 // immediates also allow a raw encoded 8-bit value.
4440 if (Tok.is(AsmToken::Integer)) {
4441 int64_t Val = Tok.getIntVal();
4442 Parser.Lex(); // Eat the token.
4443 if (Val > 255 || Val < 0) {
4444 Error(Loc, "encoded floating point value out of range");
4445 return MatchOperand_ParseFail;
4447 double RealVal = ARM_AM::getFPImmFloat(Val);
4448 Val = APFloat(APFloat::IEEEdouble, RealVal).bitcastToAPInt().getZExtValue();
4449 Operands.push_back(ARMOperand::CreateImm(
4450 MCConstantExpr::Create(Val, getContext()), S,
4451 Parser.getTok().getLoc()));
4452 return MatchOperand_Success;
4455 Error(Loc, "invalid floating point immediate");
4456 return MatchOperand_ParseFail;
4459 /// Parse a arm instruction operand. For now this parses the operand regardless
4460 /// of the mnemonic.
4461 bool ARMAsmParser::parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
4462 StringRef Mnemonic) {
4465 // Check if the current operand has a custom associated parser, if so, try to
4466 // custom parse the operand, or fallback to the general approach.
4467 OperandMatchResultTy ResTy = MatchOperandParserImpl(Operands, Mnemonic);
4468 if (ResTy == MatchOperand_Success)
4470 // If there wasn't a custom match, try the generic matcher below. Otherwise,
4471 // there was a match, but an error occurred, in which case, just return that
4472 // the operand parsing failed.
4473 if (ResTy == MatchOperand_ParseFail)
4476 switch (getLexer().getKind()) {
4478 Error(Parser.getTok().getLoc(), "unexpected token in operand");
4480 case AsmToken::Identifier: {
4481 if (!tryParseRegisterWithWriteBack(Operands))
4483 int Res = tryParseShiftRegister(Operands);
4484 if (Res == 0) // success
4486 else if (Res == -1) // irrecoverable error
4488 // If this is VMRS, check for the apsr_nzcv operand.
4489 if (Mnemonic == "vmrs" &&
4490 Parser.getTok().getString().equals_lower("apsr_nzcv")) {
4491 S = Parser.getTok().getLoc();
4493 Operands.push_back(ARMOperand::CreateToken("APSR_nzcv", S));
4497 // Fall though for the Identifier case that is not a register or a
4500 case AsmToken::LParen: // parenthesized expressions like (_strcmp-4)
4501 case AsmToken::Integer: // things like 1f and 2b as a branch targets
4502 case AsmToken::String: // quoted label names.
4503 case AsmToken::Dot: { // . as a branch target
4504 // This was not a register so parse other operands that start with an
4505 // identifier (like labels) as expressions and create them as immediates.
4506 const MCExpr *IdVal;
4507 S = Parser.getTok().getLoc();
4508 if (getParser().ParseExpression(IdVal))
4510 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4511 Operands.push_back(ARMOperand::CreateImm(IdVal, S, E));
4514 case AsmToken::LBrac:
4515 return parseMemory(Operands);
4516 case AsmToken::LCurly:
4517 return parseRegisterList(Operands);
4518 case AsmToken::Dollar:
4519 case AsmToken::Hash: {
4520 // #42 -> immediate.
4521 // TODO: ":lower16:" and ":upper16:" modifiers after # before immediate
4522 S = Parser.getTok().getLoc();
4524 bool isNegative = Parser.getTok().is(AsmToken::Minus);
4525 const MCExpr *ImmVal;
4526 if (getParser().ParseExpression(ImmVal))
4528 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ImmVal);
4530 int32_t Val = CE->getValue();
4531 if (isNegative && Val == 0)
4532 ImmVal = MCConstantExpr::Create(INT32_MIN, getContext());
4534 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4535 Operands.push_back(ARMOperand::CreateImm(ImmVal, S, E));
4538 case AsmToken::Colon: {
4539 // ":lower16:" and ":upper16:" expression prefixes
4540 // FIXME: Check it's an expression prefix,
4541 // e.g. (FOO - :lower16:BAR) isn't legal.
4542 ARMMCExpr::VariantKind RefKind;
4543 if (parsePrefix(RefKind))
4546 const MCExpr *SubExprVal;
4547 if (getParser().ParseExpression(SubExprVal))
4550 const MCExpr *ExprVal = ARMMCExpr::Create(RefKind, SubExprVal,
4552 E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
4553 Operands.push_back(ARMOperand::CreateImm(ExprVal, S, E));
4559 // parsePrefix - Parse ARM 16-bit relocations expression prefix, i.e.
4560 // :lower16: and :upper16:.
4561 bool ARMAsmParser::parsePrefix(ARMMCExpr::VariantKind &RefKind) {
4562 RefKind = ARMMCExpr::VK_ARM_None;
4564 // :lower16: and :upper16: modifiers
4565 assert(getLexer().is(AsmToken::Colon) && "expected a :");
4566 Parser.Lex(); // Eat ':'
4568 if (getLexer().isNot(AsmToken::Identifier)) {
4569 Error(Parser.getTok().getLoc(), "expected prefix identifier in operand");
4573 StringRef IDVal = Parser.getTok().getIdentifier();
4574 if (IDVal == "lower16") {
4575 RefKind = ARMMCExpr::VK_ARM_LO16;
4576 } else if (IDVal == "upper16") {
4577 RefKind = ARMMCExpr::VK_ARM_HI16;
4579 Error(Parser.getTok().getLoc(), "unexpected prefix in operand");
4584 if (getLexer().isNot(AsmToken::Colon)) {
4585 Error(Parser.getTok().getLoc(), "unexpected token after prefix");
4588 Parser.Lex(); // Eat the last ':'
4592 /// \brief Given a mnemonic, split out possible predication code and carry
4593 /// setting letters to form a canonical mnemonic and flags.
4595 // FIXME: Would be nice to autogen this.
4596 // FIXME: This is a bit of a maze of special cases.
4597 StringRef ARMAsmParser::splitMnemonic(StringRef Mnemonic,
4598 unsigned &PredicationCode,
4600 unsigned &ProcessorIMod,
4601 StringRef &ITMask) {
4602 PredicationCode = ARMCC::AL;
4603 CarrySetting = false;
4606 // Ignore some mnemonics we know aren't predicated forms.
4608 // FIXME: Would be nice to autogen this.
4609 if ((Mnemonic == "movs" && isThumb()) ||
4610 Mnemonic == "teq" || Mnemonic == "vceq" || Mnemonic == "svc" ||
4611 Mnemonic == "mls" || Mnemonic == "smmls" || Mnemonic == "vcls" ||
4612 Mnemonic == "vmls" || Mnemonic == "vnmls" || Mnemonic == "vacge" ||
4613 Mnemonic == "vcge" || Mnemonic == "vclt" || Mnemonic == "vacgt" ||
4614 Mnemonic == "vcgt" || Mnemonic == "vcle" || Mnemonic == "smlal" ||
4615 Mnemonic == "umaal" || Mnemonic == "umlal" || Mnemonic == "vabal" ||
4616 Mnemonic == "vmlal" || Mnemonic == "vpadal" || Mnemonic == "vqdmlal" ||
4617 Mnemonic == "fmuls")
4620 // First, split out any predication code. Ignore mnemonics we know aren't
4621 // predicated but do have a carry-set and so weren't caught above.
4622 if (Mnemonic != "adcs" && Mnemonic != "bics" && Mnemonic != "movs" &&
4623 Mnemonic != "muls" && Mnemonic != "smlals" && Mnemonic != "smulls" &&
4624 Mnemonic != "umlals" && Mnemonic != "umulls" && Mnemonic != "lsls" &&
4625 Mnemonic != "sbcs" && Mnemonic != "rscs") {
4626 unsigned CC = StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2))
4627 .Case("eq", ARMCC::EQ)
4628 .Case("ne", ARMCC::NE)
4629 .Case("hs", ARMCC::HS)
4630 .Case("cs", ARMCC::HS)
4631 .Case("lo", ARMCC::LO)
4632 .Case("cc", ARMCC::LO)
4633 .Case("mi", ARMCC::MI)
4634 .Case("pl", ARMCC::PL)
4635 .Case("vs", ARMCC::VS)
4636 .Case("vc", ARMCC::VC)
4637 .Case("hi", ARMCC::HI)
4638 .Case("ls", ARMCC::LS)
4639 .Case("ge", ARMCC::GE)
4640 .Case("lt", ARMCC::LT)
4641 .Case("gt", ARMCC::GT)
4642 .Case("le", ARMCC::LE)
4643 .Case("al", ARMCC::AL)
4646 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 2);
4647 PredicationCode = CC;
4651 // Next, determine if we have a carry setting bit. We explicitly ignore all
4652 // the instructions we know end in 's'.
4653 if (Mnemonic.endswith("s") &&
4654 !(Mnemonic == "cps" || Mnemonic == "mls" ||
4655 Mnemonic == "mrs" || Mnemonic == "smmls" || Mnemonic == "vabs" ||
4656 Mnemonic == "vcls" || Mnemonic == "vmls" || Mnemonic == "vmrs" ||
4657 Mnemonic == "vnmls" || Mnemonic == "vqabs" || Mnemonic == "vrecps" ||
4658 Mnemonic == "vrsqrts" || Mnemonic == "srs" || Mnemonic == "flds" ||
4659 Mnemonic == "fmrs" || Mnemonic == "fsqrts" || Mnemonic == "fsubs" ||
4660 Mnemonic == "fsts" || Mnemonic == "fcpys" || Mnemonic == "fdivs" ||
4661 Mnemonic == "fmuls" || Mnemonic == "fcmps" || Mnemonic == "fcmpzs" ||
4662 Mnemonic == "vfms" || Mnemonic == "vfnms" ||
4663 (Mnemonic == "movs" && isThumb()))) {
4664 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1);
4665 CarrySetting = true;
4668 // The "cps" instruction can have a interrupt mode operand which is glued into
4669 // the mnemonic. Check if this is the case, split it and parse the imod op
4670 if (Mnemonic.startswith("cps")) {
4671 // Split out any imod code.
4673 StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2, 2))
4674 .Case("ie", ARM_PROC::IE)
4675 .Case("id", ARM_PROC::ID)
4678 Mnemonic = Mnemonic.slice(0, Mnemonic.size()-2);
4679 ProcessorIMod = IMod;
4683 // The "it" instruction has the condition mask on the end of the mnemonic.
4684 if (Mnemonic.startswith("it")) {
4685 ITMask = Mnemonic.slice(2, Mnemonic.size());
4686 Mnemonic = Mnemonic.slice(0, 2);
4692 /// \brief Given a canonical mnemonic, determine if the instruction ever allows
4693 /// inclusion of carry set or predication code operands.
4695 // FIXME: It would be nice to autogen this.
4697 getMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
4698 bool &CanAcceptPredicationCode) {
4699 if (Mnemonic == "and" || Mnemonic == "lsl" || Mnemonic == "lsr" ||
4700 Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" ||
4701 Mnemonic == "add" || Mnemonic == "adc" ||
4702 Mnemonic == "mul" || Mnemonic == "bic" || Mnemonic == "asr" ||
4703 Mnemonic == "orr" || Mnemonic == "mvn" ||
4704 Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
4705 Mnemonic == "sbc" || Mnemonic == "eor" || Mnemonic == "neg" ||
4706 Mnemonic == "vfm" || Mnemonic == "vfnm" ||
4707 (!isThumb() && (Mnemonic == "smull" || Mnemonic == "mov" ||
4708 Mnemonic == "mla" || Mnemonic == "smlal" ||
4709 Mnemonic == "umlal" || Mnemonic == "umull"))) {
4710 CanAcceptCarrySet = true;
4712 CanAcceptCarrySet = false;
4714 if (Mnemonic == "cbnz" || Mnemonic == "setend" || Mnemonic == "dmb" ||
4715 Mnemonic == "cps" || Mnemonic == "mcr2" || Mnemonic == "it" ||
4716 Mnemonic == "mcrr2" || Mnemonic == "cbz" || Mnemonic == "cdp2" ||
4717 Mnemonic == "trap" || Mnemonic == "mrc2" || Mnemonic == "mrrc2" ||
4718 Mnemonic == "dsb" || Mnemonic == "isb" || Mnemonic == "setend" ||
4719 (Mnemonic == "clrex" && !isThumb()) ||
4720 (Mnemonic == "nop" && isThumbOne()) ||
4721 ((Mnemonic == "pld" || Mnemonic == "pli" || Mnemonic == "pldw" ||
4722 Mnemonic == "ldc2" || Mnemonic == "ldc2l" ||
4723 Mnemonic == "stc2" || Mnemonic == "stc2l") && !isThumb()) ||
4724 ((Mnemonic.startswith("rfe") || Mnemonic.startswith("srs")) &&
4726 Mnemonic.startswith("cps") || (Mnemonic == "movs" && isThumbOne())) {
4727 CanAcceptPredicationCode = false;
4729 CanAcceptPredicationCode = true;
4732 if (Mnemonic == "bkpt" || Mnemonic == "mcr" || Mnemonic == "mcrr" ||
4733 Mnemonic == "mrc" || Mnemonic == "mrrc" || Mnemonic == "cdp")
4734 CanAcceptPredicationCode = false;
4738 bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
4739 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4740 // FIXME: This is all horribly hacky. We really need a better way to deal
4741 // with optional operands like this in the matcher table.
4743 // The 'mov' mnemonic is special. One variant has a cc_out operand, while
4744 // another does not. Specifically, the MOVW instruction does not. So we
4745 // special case it here and remove the defaulted (non-setting) cc_out
4746 // operand if that's the instruction we're trying to match.
4748 // We do this as post-processing of the explicit operands rather than just
4749 // conditionally adding the cc_out in the first place because we need
4750 // to check the type of the parsed immediate operand.
4751 if (Mnemonic == "mov" && Operands.size() > 4 && !isThumb() &&
4752 !static_cast<ARMOperand*>(Operands[4])->isARMSOImm() &&
4753 static_cast<ARMOperand*>(Operands[4])->isImm0_65535Expr() &&
4754 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4757 // Register-register 'add' for thumb does not have a cc_out operand
4758 // when there are only two register operands.
4759 if (isThumb() && Mnemonic == "add" && Operands.size() == 5 &&
4760 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4761 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4762 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4764 // Register-register 'add' for thumb does not have a cc_out operand
4765 // when it's an ADD Rdm, SP, {Rdm|#imm0_255} instruction. We do
4766 // have to check the immediate range here since Thumb2 has a variant
4767 // that can handle a different range and has a cc_out operand.
4768 if (((isThumb() && Mnemonic == "add") ||
4769 (isThumbTwo() && Mnemonic == "sub")) &&
4770 Operands.size() == 6 &&
4771 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4772 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4773 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::SP &&
4774 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4775 ((Mnemonic == "add" &&static_cast<ARMOperand*>(Operands[5])->isReg()) ||
4776 static_cast<ARMOperand*>(Operands[5])->isImm0_1020s4()))
4778 // For Thumb2, add/sub immediate does not have a cc_out operand for the
4779 // imm0_4095 variant. That's the least-preferred variant when
4780 // selecting via the generic "add" mnemonic, so to know that we
4781 // should remove the cc_out operand, we have to explicitly check that
4782 // it's not one of the other variants. Ugh.
4783 if (isThumbTwo() && (Mnemonic == "add" || Mnemonic == "sub") &&
4784 Operands.size() == 6 &&
4785 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4786 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4787 static_cast<ARMOperand*>(Operands[5])->isImm()) {
4788 // Nest conditions rather than one big 'if' statement for readability.
4790 // If either register is a high reg, it's either one of the SP
4791 // variants (handled above) or a 32-bit encoding, so we just
4792 // check against T3. If the second register is the PC, this is an
4793 // alternate form of ADR, which uses encoding T4, so check for that too.
4794 if ((!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
4795 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg())) &&
4796 static_cast<ARMOperand*>(Operands[4])->getReg() != ARM::PC &&
4797 static_cast<ARMOperand*>(Operands[5])->isT2SOImm())
4799 // If both registers are low, we're in an IT block, and the immediate is
4800 // in range, we should use encoding T1 instead, which has a cc_out.
4802 isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
4803 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) &&
4804 static_cast<ARMOperand*>(Operands[5])->isImm0_7())
4807 // Otherwise, we use encoding T4, which does not have a cc_out
4812 // The thumb2 multiply instruction doesn't have a CCOut register, so
4813 // if we have a "mul" mnemonic in Thumb mode, check if we'll be able to
4814 // use the 16-bit encoding or not.
4815 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 6 &&
4816 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4817 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4818 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4819 static_cast<ARMOperand*>(Operands[5])->isReg() &&
4820 // If the registers aren't low regs, the destination reg isn't the
4821 // same as one of the source regs, or the cc_out operand is zero
4822 // outside of an IT block, we have to use the 32-bit encoding, so
4823 // remove the cc_out operand.
4824 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
4825 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
4826 !isARMLowRegister(static_cast<ARMOperand*>(Operands[5])->getReg()) ||
4828 (static_cast<ARMOperand*>(Operands[3])->getReg() !=
4829 static_cast<ARMOperand*>(Operands[5])->getReg() &&
4830 static_cast<ARMOperand*>(Operands[3])->getReg() !=
4831 static_cast<ARMOperand*>(Operands[4])->getReg())))
4834 // Also check the 'mul' syntax variant that doesn't specify an explicit
4835 // destination register.
4836 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 5 &&
4837 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4838 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4839 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4840 // If the registers aren't low regs or the cc_out operand is zero
4841 // outside of an IT block, we have to use the 32-bit encoding, so
4842 // remove the cc_out operand.
4843 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
4844 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
4850 // Register-register 'add/sub' for thumb does not have a cc_out operand
4851 // when it's an ADD/SUB SP, #imm. Be lenient on count since there's also
4852 // the "add/sub SP, SP, #imm" version. If the follow-up operands aren't
4853 // right, this will result in better diagnostics (which operand is off)
4855 if (isThumb() && (Mnemonic == "add" || Mnemonic == "sub") &&
4856 (Operands.size() == 5 || Operands.size() == 6) &&
4857 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4858 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::SP &&
4859 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4860 (static_cast<ARMOperand*>(Operands[4])->isImm() ||
4861 (Operands.size() == 6 &&
4862 static_cast<ARMOperand*>(Operands[5])->isImm())))
4868 static bool isDataTypeToken(StringRef Tok) {
4869 return Tok == ".8" || Tok == ".16" || Tok == ".32" || Tok == ".64" ||
4870 Tok == ".i8" || Tok == ".i16" || Tok == ".i32" || Tok == ".i64" ||
4871 Tok == ".u8" || Tok == ".u16" || Tok == ".u32" || Tok == ".u64" ||
4872 Tok == ".s8" || Tok == ".s16" || Tok == ".s32" || Tok == ".s64" ||
4873 Tok == ".p8" || Tok == ".p16" || Tok == ".f32" || Tok == ".f64" ||
4874 Tok == ".f" || Tok == ".d";
4877 // FIXME: This bit should probably be handled via an explicit match class
4878 // in the .td files that matches the suffix instead of having it be
4879 // a literal string token the way it is now.
4880 static bool doesIgnoreDataTypeSuffix(StringRef Mnemonic, StringRef DT) {
4881 return Mnemonic.startswith("vldm") || Mnemonic.startswith("vstm");
4884 static void applyMnemonicAliases(StringRef &Mnemonic, unsigned Features);
4885 /// Parse an arm instruction mnemonic followed by its operands.
4886 bool ARMAsmParser::ParseInstruction(StringRef Name, SMLoc NameLoc,
4887 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4888 // Apply mnemonic aliases before doing anything else, as the destination
4889 // mnemnonic may include suffices and we want to handle them normally.
4890 // The generic tblgen'erated code does this later, at the start of
4891 // MatchInstructionImpl(), but that's too late for aliases that include
4892 // any sort of suffix.
4893 unsigned AvailableFeatures = getAvailableFeatures();
4894 applyMnemonicAliases(Name, AvailableFeatures);
4896 // First check for the ARM-specific .req directive.
4897 if (Parser.getTok().is(AsmToken::Identifier) &&
4898 Parser.getTok().getIdentifier() == ".req") {
4899 parseDirectiveReq(Name, NameLoc);
4900 // We always return 'error' for this, as we're done with this
4901 // statement and don't need to match the 'instruction."
4905 // Create the leading tokens for the mnemonic, split by '.' characters.
4906 size_t Start = 0, Next = Name.find('.');
4907 StringRef Mnemonic = Name.slice(Start, Next);
4909 // Split out the predication code and carry setting flag from the mnemonic.
4910 unsigned PredicationCode;
4911 unsigned ProcessorIMod;
4914 Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
4915 ProcessorIMod, ITMask);
4917 // In Thumb1, only the branch (B) instruction can be predicated.
4918 if (isThumbOne() && PredicationCode != ARMCC::AL && Mnemonic != "b") {
4919 Parser.EatToEndOfStatement();
4920 return Error(NameLoc, "conditional execution not supported in Thumb1");
4923 Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
4925 // Handle the IT instruction ITMask. Convert it to a bitmask. This
4926 // is the mask as it will be for the IT encoding if the conditional
4927 // encoding has a '1' as it's bit0 (i.e. 't' ==> '1'). In the case
4928 // where the conditional bit0 is zero, the instruction post-processing
4929 // will adjust the mask accordingly.
4930 if (Mnemonic == "it") {
4931 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + 2);
4932 if (ITMask.size() > 3) {
4933 Parser.EatToEndOfStatement();
4934 return Error(Loc, "too many conditions on IT instruction");
4937 for (unsigned i = ITMask.size(); i != 0; --i) {
4938 char pos = ITMask[i - 1];
4939 if (pos != 't' && pos != 'e') {
4940 Parser.EatToEndOfStatement();
4941 return Error(Loc, "illegal IT block condition mask '" + ITMask + "'");
4944 if (ITMask[i - 1] == 't')
4947 Operands.push_back(ARMOperand::CreateITMask(Mask, Loc));
4950 // FIXME: This is all a pretty gross hack. We should automatically handle
4951 // optional operands like this via tblgen.
4953 // Next, add the CCOut and ConditionCode operands, if needed.
4955 // For mnemonics which can ever incorporate a carry setting bit or predication
4956 // code, our matching model involves us always generating CCOut and
4957 // ConditionCode operands to match the mnemonic "as written" and then we let
4958 // the matcher deal with finding the right instruction or generating an
4959 // appropriate error.
4960 bool CanAcceptCarrySet, CanAcceptPredicationCode;
4961 getMnemonicAcceptInfo(Mnemonic, CanAcceptCarrySet, CanAcceptPredicationCode);
4963 // If we had a carry-set on an instruction that can't do that, issue an
4965 if (!CanAcceptCarrySet && CarrySetting) {
4966 Parser.EatToEndOfStatement();
4967 return Error(NameLoc, "instruction '" + Mnemonic +
4968 "' can not set flags, but 's' suffix specified");
4970 // If we had a predication code on an instruction that can't do that, issue an
4972 if (!CanAcceptPredicationCode && PredicationCode != ARMCC::AL) {
4973 Parser.EatToEndOfStatement();
4974 return Error(NameLoc, "instruction '" + Mnemonic +
4975 "' is not predicable, but condition code specified");
4978 // Add the carry setting operand, if necessary.
4979 if (CanAcceptCarrySet) {
4980 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size());
4981 Operands.push_back(ARMOperand::CreateCCOut(CarrySetting ? ARM::CPSR : 0,
4985 // Add the predication code operand, if necessary.
4986 if (CanAcceptPredicationCode) {
4987 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size() +
4989 Operands.push_back(ARMOperand::CreateCondCode(
4990 ARMCC::CondCodes(PredicationCode), Loc));
4993 // Add the processor imod operand, if necessary.
4994 if (ProcessorIMod) {
4995 Operands.push_back(ARMOperand::CreateImm(
4996 MCConstantExpr::Create(ProcessorIMod, getContext()),
5000 // Add the remaining tokens in the mnemonic.
5001 while (Next != StringRef::npos) {
5003 Next = Name.find('.', Start + 1);
5004 StringRef ExtraToken = Name.slice(Start, Next);
5006 // Some NEON instructions have an optional datatype suffix that is
5007 // completely ignored. Check for that.
5008 if (isDataTypeToken(ExtraToken) &&
5009 doesIgnoreDataTypeSuffix(Mnemonic, ExtraToken))
5012 if (ExtraToken != ".n") {
5013 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5014 Operands.push_back(ARMOperand::CreateToken(ExtraToken, Loc));
5018 // Read the remaining operands.
5019 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5020 // Read the first operand.
5021 if (parseOperand(Operands, Mnemonic)) {
5022 Parser.EatToEndOfStatement();
5026 while (getLexer().is(AsmToken::Comma)) {
5027 Parser.Lex(); // Eat the comma.
5029 // Parse and remember the operand.
5030 if (parseOperand(Operands, Mnemonic)) {
5031 Parser.EatToEndOfStatement();
5037 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5038 SMLoc Loc = getLexer().getLoc();
5039 Parser.EatToEndOfStatement();
5040 return Error(Loc, "unexpected token in argument list");
5043 Parser.Lex(); // Consume the EndOfStatement
5045 // Some instructions, mostly Thumb, have forms for the same mnemonic that
5046 // do and don't have a cc_out optional-def operand. With some spot-checks
5047 // of the operand list, we can figure out which variant we're trying to
5048 // parse and adjust accordingly before actually matching. We shouldn't ever
5049 // try to remove a cc_out operand that was explicitly set on the the
5050 // mnemonic, of course (CarrySetting == true). Reason number #317 the
5051 // table driven matcher doesn't fit well with the ARM instruction set.
5052 if (!CarrySetting && shouldOmitCCOutOperand(Mnemonic, Operands)) {
5053 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5054 Operands.erase(Operands.begin() + 1);
5058 // ARM mode 'blx' need special handling, as the register operand version
5059 // is predicable, but the label operand version is not. So, we can't rely
5060 // on the Mnemonic based checking to correctly figure out when to put
5061 // a k_CondCode operand in the list. If we're trying to match the label
5062 // version, remove the k_CondCode operand here.
5063 if (!isThumb() && Mnemonic == "blx" && Operands.size() == 3 &&
5064 static_cast<ARMOperand*>(Operands[2])->isImm()) {
5065 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5066 Operands.erase(Operands.begin() + 1);
5070 // The vector-compare-to-zero instructions have a literal token "#0" at
5071 // the end that comes to here as an immediate operand. Convert it to a
5072 // token to play nicely with the matcher.
5073 if ((Mnemonic == "vceq" || Mnemonic == "vcge" || Mnemonic == "vcgt" ||
5074 Mnemonic == "vcle" || Mnemonic == "vclt") && Operands.size() == 6 &&
5075 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5076 ARMOperand *Op = static_cast<ARMOperand*>(Operands[5]);
5077 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5078 if (CE && CE->getValue() == 0) {
5079 Operands.erase(Operands.begin() + 5);
5080 Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
5084 // VCMP{E} does the same thing, but with a different operand count.
5085 if ((Mnemonic == "vcmp" || Mnemonic == "vcmpe") && Operands.size() == 5 &&
5086 static_cast<ARMOperand*>(Operands[4])->isImm()) {
5087 ARMOperand *Op = static_cast<ARMOperand*>(Operands[4]);
5088 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5089 if (CE && CE->getValue() == 0) {
5090 Operands.erase(Operands.begin() + 4);
5091 Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
5095 // Similarly, the Thumb1 "RSB" instruction has a literal "#0" on the
5096 // end. Convert it to a token here. Take care not to convert those
5097 // that should hit the Thumb2 encoding.
5098 if (Mnemonic == "rsb" && isThumb() && Operands.size() == 6 &&
5099 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5100 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5101 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5102 ARMOperand *Op = static_cast<ARMOperand*>(Operands[5]);
5103 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5104 if (CE && CE->getValue() == 0 &&
5106 // The cc_out operand matches the IT block.
5107 ((inITBlock() != CarrySetting) &&
5108 // Neither register operand is a high register.
5109 (isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
5110 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()))))){
5111 Operands.erase(Operands.begin() + 5);
5112 Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
5120 // Validate context-sensitive operand constraints.
5122 // return 'true' if register list contains non-low GPR registers,
5123 // 'false' otherwise. If Reg is in the register list or is HiReg, set
5124 // 'containsReg' to true.
5125 static bool checkLowRegisterList(MCInst Inst, unsigned OpNo, unsigned Reg,
5126 unsigned HiReg, bool &containsReg) {
5127 containsReg = false;
5128 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5129 unsigned OpReg = Inst.getOperand(i).getReg();
5132 // Anything other than a low register isn't legal here.
5133 if (!isARMLowRegister(OpReg) && (!HiReg || OpReg != HiReg))
5139 // Check if the specified regisgter is in the register list of the inst,
5140 // starting at the indicated operand number.
5141 static bool listContainsReg(MCInst &Inst, unsigned OpNo, unsigned Reg) {
5142 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5143 unsigned OpReg = Inst.getOperand(i).getReg();
5150 // FIXME: We would really prefer to have MCInstrInfo (the wrapper around
5151 // the ARMInsts array) instead. Getting that here requires awkward
5152 // API changes, though. Better way?
5154 extern const MCInstrDesc ARMInsts[];
5156 static const MCInstrDesc &getInstDesc(unsigned Opcode) {
5157 return ARMInsts[Opcode];
5160 // FIXME: We would really like to be able to tablegen'erate this.
5162 validateInstruction(MCInst &Inst,
5163 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5164 const MCInstrDesc &MCID = getInstDesc(Inst.getOpcode());
5165 SMLoc Loc = Operands[0]->getStartLoc();
5166 // Check the IT block state first.
5167 // NOTE: BKPT instruction has the interesting property of being
5168 // allowed in IT blocks, but not being predicable. It just always
5170 if (inITBlock() && Inst.getOpcode() != ARM::tBKPT &&
5171 Inst.getOpcode() != ARM::BKPT) {
5173 if (ITState.FirstCond)
5174 ITState.FirstCond = false;
5176 bit = (ITState.Mask >> (5 - ITState.CurPosition)) & 1;
5177 // The instruction must be predicable.
5178 if (!MCID.isPredicable())
5179 return Error(Loc, "instructions in IT block must be predicable");
5180 unsigned Cond = Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm();
5181 unsigned ITCond = bit ? ITState.Cond :
5182 ARMCC::getOppositeCondition(ITState.Cond);
5183 if (Cond != ITCond) {
5184 // Find the condition code Operand to get its SMLoc information.
5186 for (unsigned i = 1; i < Operands.size(); ++i)
5187 if (static_cast<ARMOperand*>(Operands[i])->isCondCode())
5188 CondLoc = Operands[i]->getStartLoc();
5189 return Error(CondLoc, "incorrect condition in IT block; got '" +
5190 StringRef(ARMCondCodeToString(ARMCC::CondCodes(Cond))) +
5191 "', but expected '" +
5192 ARMCondCodeToString(ARMCC::CondCodes(ITCond)) + "'");
5194 // Check for non-'al' condition codes outside of the IT block.
5195 } else if (isThumbTwo() && MCID.isPredicable() &&
5196 Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm() !=
5197 ARMCC::AL && Inst.getOpcode() != ARM::tB &&
5198 Inst.getOpcode() != ARM::t2B)
5199 return Error(Loc, "predicated instructions must be in IT block");
5201 switch (Inst.getOpcode()) {
5204 case ARM::LDRD_POST:
5206 // Rt2 must be Rt + 1.
5207 unsigned Rt = getARMRegisterNumbering(Inst.getOperand(0).getReg());
5208 unsigned Rt2 = getARMRegisterNumbering(Inst.getOperand(1).getReg());
5210 return Error(Operands[3]->getStartLoc(),
5211 "destination operands must be sequential");
5215 // Rt2 must be Rt + 1.
5216 unsigned Rt = getARMRegisterNumbering(Inst.getOperand(0).getReg());
5217 unsigned Rt2 = getARMRegisterNumbering(Inst.getOperand(1).getReg());
5219 return Error(Operands[3]->getStartLoc(),
5220 "source operands must be sequential");
5224 case ARM::STRD_POST:
5226 // Rt2 must be Rt + 1.
5227 unsigned Rt = getARMRegisterNumbering(Inst.getOperand(1).getReg());
5228 unsigned Rt2 = getARMRegisterNumbering(Inst.getOperand(2).getReg());
5230 return Error(Operands[3]->getStartLoc(),
5231 "source operands must be sequential");
5236 // width must be in range [1, 32-lsb]
5237 unsigned lsb = Inst.getOperand(2).getImm();
5238 unsigned widthm1 = Inst.getOperand(3).getImm();
5239 if (widthm1 >= 32 - lsb)
5240 return Error(Operands[5]->getStartLoc(),
5241 "bitfield width must be in range [1,32-lsb]");
5245 // If we're parsing Thumb2, the .w variant is available and handles
5246 // most cases that are normally illegal for a Thumb1 LDM
5247 // instruction. We'll make the transformation in processInstruction()
5250 // Thumb LDM instructions are writeback iff the base register is not
5251 // in the register list.
5252 unsigned Rn = Inst.getOperand(0).getReg();
5253 bool hasWritebackToken =
5254 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
5255 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
5256 bool listContainsBase;
5257 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) && !isThumbTwo())
5258 return Error(Operands[3 + hasWritebackToken]->getStartLoc(),
5259 "registers must be in range r0-r7");
5260 // If we should have writeback, then there should be a '!' token.
5261 if (!listContainsBase && !hasWritebackToken && !isThumbTwo())
5262 return Error(Operands[2]->getStartLoc(),
5263 "writeback operator '!' expected");
5264 // If we should not have writeback, there must not be a '!'. This is
5265 // true even for the 32-bit wide encodings.
5266 if (listContainsBase && hasWritebackToken)
5267 return Error(Operands[3]->getStartLoc(),
5268 "writeback operator '!' not allowed when base register "
5269 "in register list");
5273 case ARM::t2LDMIA_UPD: {
5274 if (listContainsReg(Inst, 3, Inst.getOperand(0).getReg()))
5275 return Error(Operands[4]->getStartLoc(),
5276 "writeback operator '!' not allowed when base register "
5277 "in register list");
5280 // Like for ldm/stm, push and pop have hi-reg handling version in Thumb2,
5281 // so only issue a diagnostic for thumb1. The instructions will be
5282 // switched to the t2 encodings in processInstruction() if necessary.
5284 bool listContainsBase;
5285 if (checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase) &&
5287 return Error(Operands[2]->getStartLoc(),
5288 "registers must be in range r0-r7 or pc");
5292 bool listContainsBase;
5293 if (checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase) &&
5295 return Error(Operands[2]->getStartLoc(),
5296 "registers must be in range r0-r7 or lr");
5299 case ARM::tSTMIA_UPD: {
5300 bool listContainsBase;
5301 if (checkLowRegisterList(Inst, 4, 0, 0, listContainsBase) && !isThumbTwo())
5302 return Error(Operands[4]->getStartLoc(),
5303 "registers must be in range r0-r7");
5311 static unsigned getRealVSTOpcode(unsigned Opc, unsigned &Spacing) {
5313 default: llvm_unreachable("unexpected opcode!");
5315 case ARM::VST1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5316 case ARM::VST1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5317 case ARM::VST1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5318 case ARM::VST1LNdWB_register_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5319 case ARM::VST1LNdWB_register_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5320 case ARM::VST1LNdWB_register_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5321 case ARM::VST1LNdAsm_8: Spacing = 1; return ARM::VST1LNd8;
5322 case ARM::VST1LNdAsm_16: Spacing = 1; return ARM::VST1LNd16;
5323 case ARM::VST1LNdAsm_32: Spacing = 1; return ARM::VST1LNd32;
5326 case ARM::VST2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5327 case ARM::VST2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5328 case ARM::VST2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5329 case ARM::VST2LNqWB_fixed_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5330 case ARM::VST2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5332 case ARM::VST2LNdWB_register_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5333 case ARM::VST2LNdWB_register_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5334 case ARM::VST2LNdWB_register_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5335 case ARM::VST2LNqWB_register_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5336 case ARM::VST2LNqWB_register_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5338 case ARM::VST2LNdAsm_8: Spacing = 1; return ARM::VST2LNd8;
5339 case ARM::VST2LNdAsm_16: Spacing = 1; return ARM::VST2LNd16;
5340 case ARM::VST2LNdAsm_32: Spacing = 1; return ARM::VST2LNd32;
5341 case ARM::VST2LNqAsm_16: Spacing = 2; return ARM::VST2LNq16;
5342 case ARM::VST2LNqAsm_32: Spacing = 2; return ARM::VST2LNq32;
5345 case ARM::VST3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5346 case ARM::VST3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5347 case ARM::VST3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5348 case ARM::VST3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNq16_UPD;
5349 case ARM::VST3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5350 case ARM::VST3LNdWB_register_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5351 case ARM::VST3LNdWB_register_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5352 case ARM::VST3LNdWB_register_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5353 case ARM::VST3LNqWB_register_Asm_16: Spacing = 2; return ARM::VST3LNq16_UPD;
5354 case ARM::VST3LNqWB_register_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5355 case ARM::VST3LNdAsm_8: Spacing = 1; return ARM::VST3LNd8;
5356 case ARM::VST3LNdAsm_16: Spacing = 1; return ARM::VST3LNd16;
5357 case ARM::VST3LNdAsm_32: Spacing = 1; return ARM::VST3LNd32;
5358 case ARM::VST3LNqAsm_16: Spacing = 2; return ARM::VST3LNq16;
5359 case ARM::VST3LNqAsm_32: Spacing = 2; return ARM::VST3LNq32;
5362 case ARM::VST3dWB_fixed_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5363 case ARM::VST3dWB_fixed_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5364 case ARM::VST3dWB_fixed_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5365 case ARM::VST3qWB_fixed_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5366 case ARM::VST3qWB_fixed_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5367 case ARM::VST3qWB_fixed_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5368 case ARM::VST3dWB_register_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5369 case ARM::VST3dWB_register_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5370 case ARM::VST3dWB_register_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5371 case ARM::VST3qWB_register_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5372 case ARM::VST3qWB_register_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5373 case ARM::VST3qWB_register_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5374 case ARM::VST3dAsm_8: Spacing = 1; return ARM::VST3d8;
5375 case ARM::VST3dAsm_16: Spacing = 1; return ARM::VST3d16;
5376 case ARM::VST3dAsm_32: Spacing = 1; return ARM::VST3d32;
5377 case ARM::VST3qAsm_8: Spacing = 2; return ARM::VST3q8;
5378 case ARM::VST3qAsm_16: Spacing = 2; return ARM::VST3q16;
5379 case ARM::VST3qAsm_32: Spacing = 2; return ARM::VST3q32;
5382 case ARM::VST4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5383 case ARM::VST4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5384 case ARM::VST4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5385 case ARM::VST4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNq16_UPD;
5386 case ARM::VST4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5387 case ARM::VST4LNdWB_register_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5388 case ARM::VST4LNdWB_register_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5389 case ARM::VST4LNdWB_register_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5390 case ARM::VST4LNqWB_register_Asm_16: Spacing = 2; return ARM::VST4LNq16_UPD;
5391 case ARM::VST4LNqWB_register_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5392 case ARM::VST4LNdAsm_8: Spacing = 1; return ARM::VST4LNd8;
5393 case ARM::VST4LNdAsm_16: Spacing = 1; return ARM::VST4LNd16;
5394 case ARM::VST4LNdAsm_32: Spacing = 1; return ARM::VST4LNd32;
5395 case ARM::VST4LNqAsm_16: Spacing = 2; return ARM::VST4LNq16;
5396 case ARM::VST4LNqAsm_32: Spacing = 2; return ARM::VST4LNq32;
5399 case ARM::VST4dWB_fixed_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5400 case ARM::VST4dWB_fixed_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5401 case ARM::VST4dWB_fixed_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5402 case ARM::VST4qWB_fixed_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5403 case ARM::VST4qWB_fixed_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5404 case ARM::VST4qWB_fixed_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5405 case ARM::VST4dWB_register_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5406 case ARM::VST4dWB_register_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5407 case ARM::VST4dWB_register_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5408 case ARM::VST4qWB_register_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5409 case ARM::VST4qWB_register_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5410 case ARM::VST4qWB_register_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5411 case ARM::VST4dAsm_8: Spacing = 1; return ARM::VST4d8;
5412 case ARM::VST4dAsm_16: Spacing = 1; return ARM::VST4d16;
5413 case ARM::VST4dAsm_32: Spacing = 1; return ARM::VST4d32;
5414 case ARM::VST4qAsm_8: Spacing = 2; return ARM::VST4q8;
5415 case ARM::VST4qAsm_16: Spacing = 2; return ARM::VST4q16;
5416 case ARM::VST4qAsm_32: Spacing = 2; return ARM::VST4q32;
5420 static unsigned getRealVLDOpcode(unsigned Opc, unsigned &Spacing) {
5422 default: llvm_unreachable("unexpected opcode!");
5424 case ARM::VLD1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5425 case ARM::VLD1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5426 case ARM::VLD1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5427 case ARM::VLD1LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5428 case ARM::VLD1LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5429 case ARM::VLD1LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5430 case ARM::VLD1LNdAsm_8: Spacing = 1; return ARM::VLD1LNd8;
5431 case ARM::VLD1LNdAsm_16: Spacing = 1; return ARM::VLD1LNd16;
5432 case ARM::VLD1LNdAsm_32: Spacing = 1; return ARM::VLD1LNd32;
5435 case ARM::VLD2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5436 case ARM::VLD2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5437 case ARM::VLD2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5438 case ARM::VLD2LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNq16_UPD;
5439 case ARM::VLD2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5440 case ARM::VLD2LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5441 case ARM::VLD2LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5442 case ARM::VLD2LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5443 case ARM::VLD2LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD2LNq16_UPD;
5444 case ARM::VLD2LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5445 case ARM::VLD2LNdAsm_8: Spacing = 1; return ARM::VLD2LNd8;
5446 case ARM::VLD2LNdAsm_16: Spacing = 1; return ARM::VLD2LNd16;
5447 case ARM::VLD2LNdAsm_32: Spacing = 1; return ARM::VLD2LNd32;
5448 case ARM::VLD2LNqAsm_16: Spacing = 2; return ARM::VLD2LNq16;
5449 case ARM::VLD2LNqAsm_32: Spacing = 2; return ARM::VLD2LNq32;
5452 case ARM::VLD3DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5453 case ARM::VLD3DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5454 case ARM::VLD3DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5455 case ARM::VLD3DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPq8_UPD;
5456 case ARM::VLD3DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPq16_UPD;
5457 case ARM::VLD3DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5458 case ARM::VLD3DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5459 case ARM::VLD3DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5460 case ARM::VLD3DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5461 case ARM::VLD3DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD3DUPq8_UPD;
5462 case ARM::VLD3DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD3DUPq16_UPD;
5463 case ARM::VLD3DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5464 case ARM::VLD3DUPdAsm_8: Spacing = 1; return ARM::VLD3DUPd8;
5465 case ARM::VLD3DUPdAsm_16: Spacing = 1; return ARM::VLD3DUPd16;
5466 case ARM::VLD3DUPdAsm_32: Spacing = 1; return ARM::VLD3DUPd32;
5467 case ARM::VLD3DUPqAsm_8: Spacing = 2; return ARM::VLD3DUPq8;
5468 case ARM::VLD3DUPqAsm_16: Spacing = 2; return ARM::VLD3DUPq16;
5469 case ARM::VLD3DUPqAsm_32: Spacing = 2; return ARM::VLD3DUPq32;
5472 case ARM::VLD3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5473 case ARM::VLD3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5474 case ARM::VLD3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5475 case ARM::VLD3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNq16_UPD;
5476 case ARM::VLD3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5477 case ARM::VLD3LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5478 case ARM::VLD3LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5479 case ARM::VLD3LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5480 case ARM::VLD3LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD3LNq16_UPD;
5481 case ARM::VLD3LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5482 case ARM::VLD3LNdAsm_8: Spacing = 1; return ARM::VLD3LNd8;
5483 case ARM::VLD3LNdAsm_16: Spacing = 1; return ARM::VLD3LNd16;
5484 case ARM::VLD3LNdAsm_32: Spacing = 1; return ARM::VLD3LNd32;
5485 case ARM::VLD3LNqAsm_16: Spacing = 2; return ARM::VLD3LNq16;
5486 case ARM::VLD3LNqAsm_32: Spacing = 2; return ARM::VLD3LNq32;
5489 case ARM::VLD3dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5490 case ARM::VLD3dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5491 case ARM::VLD3dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5492 case ARM::VLD3qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5493 case ARM::VLD3qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5494 case ARM::VLD3qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5495 case ARM::VLD3dWB_register_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5496 case ARM::VLD3dWB_register_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5497 case ARM::VLD3dWB_register_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5498 case ARM::VLD3qWB_register_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5499 case ARM::VLD3qWB_register_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5500 case ARM::VLD3qWB_register_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5501 case ARM::VLD3dAsm_8: Spacing = 1; return ARM::VLD3d8;
5502 case ARM::VLD3dAsm_16: Spacing = 1; return ARM::VLD3d16;
5503 case ARM::VLD3dAsm_32: Spacing = 1; return ARM::VLD3d32;
5504 case ARM::VLD3qAsm_8: Spacing = 2; return ARM::VLD3q8;
5505 case ARM::VLD3qAsm_16: Spacing = 2; return ARM::VLD3q16;
5506 case ARM::VLD3qAsm_32: Spacing = 2; return ARM::VLD3q32;
5509 case ARM::VLD4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5510 case ARM::VLD4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5511 case ARM::VLD4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5512 case ARM::VLD4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNq16_UPD;
5513 case ARM::VLD4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5514 case ARM::VLD4LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5515 case ARM::VLD4LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5516 case ARM::VLD4LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5517 case ARM::VLD4LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD4LNq16_UPD;
5518 case ARM::VLD4LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5519 case ARM::VLD4LNdAsm_8: Spacing = 1; return ARM::VLD4LNd8;
5520 case ARM::VLD4LNdAsm_16: Spacing = 1; return ARM::VLD4LNd16;
5521 case ARM::VLD4LNdAsm_32: Spacing = 1; return ARM::VLD4LNd32;
5522 case ARM::VLD4LNqAsm_16: Spacing = 2; return ARM::VLD4LNq16;
5523 case ARM::VLD4LNqAsm_32: Spacing = 2; return ARM::VLD4LNq32;
5526 case ARM::VLD4DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5527 case ARM::VLD4DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5528 case ARM::VLD4DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5529 case ARM::VLD4DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPq8_UPD;
5530 case ARM::VLD4DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPq16_UPD;
5531 case ARM::VLD4DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5532 case ARM::VLD4DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5533 case ARM::VLD4DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5534 case ARM::VLD4DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5535 case ARM::VLD4DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD4DUPq8_UPD;
5536 case ARM::VLD4DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD4DUPq16_UPD;
5537 case ARM::VLD4DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5538 case ARM::VLD4DUPdAsm_8: Spacing = 1; return ARM::VLD4DUPd8;
5539 case ARM::VLD4DUPdAsm_16: Spacing = 1; return ARM::VLD4DUPd16;
5540 case ARM::VLD4DUPdAsm_32: Spacing = 1; return ARM::VLD4DUPd32;
5541 case ARM::VLD4DUPqAsm_8: Spacing = 2; return ARM::VLD4DUPq8;
5542 case ARM::VLD4DUPqAsm_16: Spacing = 2; return ARM::VLD4DUPq16;
5543 case ARM::VLD4DUPqAsm_32: Spacing = 2; return ARM::VLD4DUPq32;
5546 case ARM::VLD4dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5547 case ARM::VLD4dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5548 case ARM::VLD4dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5549 case ARM::VLD4qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5550 case ARM::VLD4qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5551 case ARM::VLD4qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5552 case ARM::VLD4dWB_register_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5553 case ARM::VLD4dWB_register_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5554 case ARM::VLD4dWB_register_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5555 case ARM::VLD4qWB_register_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5556 case ARM::VLD4qWB_register_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5557 case ARM::VLD4qWB_register_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5558 case ARM::VLD4dAsm_8: Spacing = 1; return ARM::VLD4d8;
5559 case ARM::VLD4dAsm_16: Spacing = 1; return ARM::VLD4d16;
5560 case ARM::VLD4dAsm_32: Spacing = 1; return ARM::VLD4d32;
5561 case ARM::VLD4qAsm_8: Spacing = 2; return ARM::VLD4q8;
5562 case ARM::VLD4qAsm_16: Spacing = 2; return ARM::VLD4q16;
5563 case ARM::VLD4qAsm_32: Spacing = 2; return ARM::VLD4q32;
5568 processInstruction(MCInst &Inst,
5569 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5570 switch (Inst.getOpcode()) {
5571 // Aliases for alternate PC+imm syntax of LDR instructions.
5572 case ARM::t2LDRpcrel:
5573 Inst.setOpcode(ARM::t2LDRpci);
5575 case ARM::t2LDRBpcrel:
5576 Inst.setOpcode(ARM::t2LDRBpci);
5578 case ARM::t2LDRHpcrel:
5579 Inst.setOpcode(ARM::t2LDRHpci);
5581 case ARM::t2LDRSBpcrel:
5582 Inst.setOpcode(ARM::t2LDRSBpci);
5584 case ARM::t2LDRSHpcrel:
5585 Inst.setOpcode(ARM::t2LDRSHpci);
5587 // Handle NEON VST complex aliases.
5588 case ARM::VST1LNdWB_register_Asm_8:
5589 case ARM::VST1LNdWB_register_Asm_16:
5590 case ARM::VST1LNdWB_register_Asm_32: {
5592 // Shuffle the operands around so the lane index operand is in the
5595 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5596 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5597 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5598 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5599 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5600 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5601 TmpInst.addOperand(Inst.getOperand(1)); // lane
5602 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5603 TmpInst.addOperand(Inst.getOperand(6));
5608 case ARM::VST2LNdWB_register_Asm_8:
5609 case ARM::VST2LNdWB_register_Asm_16:
5610 case ARM::VST2LNdWB_register_Asm_32:
5611 case ARM::VST2LNqWB_register_Asm_16:
5612 case ARM::VST2LNqWB_register_Asm_32: {
5614 // Shuffle the operands around so the lane index operand is in the
5617 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5618 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5619 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5620 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5621 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5622 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5623 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5625 TmpInst.addOperand(Inst.getOperand(1)); // lane
5626 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5627 TmpInst.addOperand(Inst.getOperand(6));
5632 case ARM::VST3LNdWB_register_Asm_8:
5633 case ARM::VST3LNdWB_register_Asm_16:
5634 case ARM::VST3LNdWB_register_Asm_32:
5635 case ARM::VST3LNqWB_register_Asm_16:
5636 case ARM::VST3LNqWB_register_Asm_32: {
5638 // Shuffle the operands around so the lane index operand is in the
5641 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5642 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5643 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5644 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5645 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5646 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5647 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5649 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5651 TmpInst.addOperand(Inst.getOperand(1)); // lane
5652 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5653 TmpInst.addOperand(Inst.getOperand(6));
5658 case ARM::VST4LNdWB_register_Asm_8:
5659 case ARM::VST4LNdWB_register_Asm_16:
5660 case ARM::VST4LNdWB_register_Asm_32:
5661 case ARM::VST4LNqWB_register_Asm_16:
5662 case ARM::VST4LNqWB_register_Asm_32: {
5664 // Shuffle the operands around so the lane index operand is in the
5667 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5668 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5669 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5670 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5671 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5672 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5673 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5675 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5677 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5679 TmpInst.addOperand(Inst.getOperand(1)); // lane
5680 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5681 TmpInst.addOperand(Inst.getOperand(6));
5686 case ARM::VST1LNdWB_fixed_Asm_8:
5687 case ARM::VST1LNdWB_fixed_Asm_16:
5688 case ARM::VST1LNdWB_fixed_Asm_32: {
5690 // Shuffle the operands around so the lane index operand is in the
5693 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5694 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5695 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5696 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5697 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5698 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5699 TmpInst.addOperand(Inst.getOperand(1)); // lane
5700 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5701 TmpInst.addOperand(Inst.getOperand(5));
5706 case ARM::VST2LNdWB_fixed_Asm_8:
5707 case ARM::VST2LNdWB_fixed_Asm_16:
5708 case ARM::VST2LNdWB_fixed_Asm_32:
5709 case ARM::VST2LNqWB_fixed_Asm_16:
5710 case ARM::VST2LNqWB_fixed_Asm_32: {
5712 // Shuffle the operands around so the lane index operand is in the
5715 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5716 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5717 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5718 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5719 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5720 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5721 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5723 TmpInst.addOperand(Inst.getOperand(1)); // lane
5724 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5725 TmpInst.addOperand(Inst.getOperand(5));
5730 case ARM::VST3LNdWB_fixed_Asm_8:
5731 case ARM::VST3LNdWB_fixed_Asm_16:
5732 case ARM::VST3LNdWB_fixed_Asm_32:
5733 case ARM::VST3LNqWB_fixed_Asm_16:
5734 case ARM::VST3LNqWB_fixed_Asm_32: {
5736 // Shuffle the operands around so the lane index operand is in the
5739 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5740 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5741 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5742 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5743 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5744 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5745 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5747 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5749 TmpInst.addOperand(Inst.getOperand(1)); // lane
5750 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5751 TmpInst.addOperand(Inst.getOperand(5));
5756 case ARM::VST4LNdWB_fixed_Asm_8:
5757 case ARM::VST4LNdWB_fixed_Asm_16:
5758 case ARM::VST4LNdWB_fixed_Asm_32:
5759 case ARM::VST4LNqWB_fixed_Asm_16:
5760 case ARM::VST4LNqWB_fixed_Asm_32: {
5762 // Shuffle the operands around so the lane index operand is in the
5765 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5766 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5767 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5768 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5769 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5770 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5771 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5773 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5775 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5777 TmpInst.addOperand(Inst.getOperand(1)); // lane
5778 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5779 TmpInst.addOperand(Inst.getOperand(5));
5784 case ARM::VST1LNdAsm_8:
5785 case ARM::VST1LNdAsm_16:
5786 case ARM::VST1LNdAsm_32: {
5788 // Shuffle the operands around so the lane index operand is in the
5791 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5792 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5793 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5794 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5795 TmpInst.addOperand(Inst.getOperand(1)); // lane
5796 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5797 TmpInst.addOperand(Inst.getOperand(5));
5802 case ARM::VST2LNdAsm_8:
5803 case ARM::VST2LNdAsm_16:
5804 case ARM::VST2LNdAsm_32:
5805 case ARM::VST2LNqAsm_16:
5806 case ARM::VST2LNqAsm_32: {
5808 // Shuffle the operands around so the lane index operand is in the
5811 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5812 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5813 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5814 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5815 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5817 TmpInst.addOperand(Inst.getOperand(1)); // lane
5818 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5819 TmpInst.addOperand(Inst.getOperand(5));
5824 case ARM::VST3LNdAsm_8:
5825 case ARM::VST3LNdAsm_16:
5826 case ARM::VST3LNdAsm_32:
5827 case ARM::VST3LNqAsm_16:
5828 case ARM::VST3LNqAsm_32: {
5830 // Shuffle the operands around so the lane index operand is in the
5833 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5834 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5835 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5836 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5837 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5839 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5841 TmpInst.addOperand(Inst.getOperand(1)); // lane
5842 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5843 TmpInst.addOperand(Inst.getOperand(5));
5848 case ARM::VST4LNdAsm_8:
5849 case ARM::VST4LNdAsm_16:
5850 case ARM::VST4LNdAsm_32:
5851 case ARM::VST4LNqAsm_16:
5852 case ARM::VST4LNqAsm_32: {
5854 // Shuffle the operands around so the lane index operand is in the
5857 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5858 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5859 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5860 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5861 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5863 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5865 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5867 TmpInst.addOperand(Inst.getOperand(1)); // lane
5868 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5869 TmpInst.addOperand(Inst.getOperand(5));
5874 // Handle NEON VLD complex aliases.
5875 case ARM::VLD1LNdWB_register_Asm_8:
5876 case ARM::VLD1LNdWB_register_Asm_16:
5877 case ARM::VLD1LNdWB_register_Asm_32: {
5879 // Shuffle the operands around so the lane index operand is in the
5882 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5883 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5884 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5885 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5886 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5887 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5888 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5889 TmpInst.addOperand(Inst.getOperand(1)); // lane
5890 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5891 TmpInst.addOperand(Inst.getOperand(6));
5896 case ARM::VLD2LNdWB_register_Asm_8:
5897 case ARM::VLD2LNdWB_register_Asm_16:
5898 case ARM::VLD2LNdWB_register_Asm_32:
5899 case ARM::VLD2LNqWB_register_Asm_16:
5900 case ARM::VLD2LNqWB_register_Asm_32: {
5902 // Shuffle the operands around so the lane index operand is in the
5905 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5906 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5907 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5909 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5910 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5911 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5912 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5913 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5914 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5916 TmpInst.addOperand(Inst.getOperand(1)); // lane
5917 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5918 TmpInst.addOperand(Inst.getOperand(6));
5923 case ARM::VLD3LNdWB_register_Asm_8:
5924 case ARM::VLD3LNdWB_register_Asm_16:
5925 case ARM::VLD3LNdWB_register_Asm_32:
5926 case ARM::VLD3LNqWB_register_Asm_16:
5927 case ARM::VLD3LNqWB_register_Asm_32: {
5929 // Shuffle the operands around so the lane index operand is in the
5932 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5933 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5934 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5936 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5938 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5939 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5940 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5941 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5942 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5943 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5945 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5947 TmpInst.addOperand(Inst.getOperand(1)); // lane
5948 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5949 TmpInst.addOperand(Inst.getOperand(6));
5954 case ARM::VLD4LNdWB_register_Asm_8:
5955 case ARM::VLD4LNdWB_register_Asm_16:
5956 case ARM::VLD4LNdWB_register_Asm_32:
5957 case ARM::VLD4LNqWB_register_Asm_16:
5958 case ARM::VLD4LNqWB_register_Asm_32: {
5960 // Shuffle the operands around so the lane index operand is in the
5963 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5964 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5965 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5967 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5969 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5971 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5972 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5973 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5974 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5975 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5976 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5978 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5980 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5982 TmpInst.addOperand(Inst.getOperand(1)); // lane
5983 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5984 TmpInst.addOperand(Inst.getOperand(6));
5989 case ARM::VLD1LNdWB_fixed_Asm_8:
5990 case ARM::VLD1LNdWB_fixed_Asm_16:
5991 case ARM::VLD1LNdWB_fixed_Asm_32: {
5993 // Shuffle the operands around so the lane index operand is in the
5996 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5997 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5998 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5999 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6000 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6001 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6002 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6003 TmpInst.addOperand(Inst.getOperand(1)); // lane
6004 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6005 TmpInst.addOperand(Inst.getOperand(5));
6010 case ARM::VLD2LNdWB_fixed_Asm_8:
6011 case ARM::VLD2LNdWB_fixed_Asm_16:
6012 case ARM::VLD2LNdWB_fixed_Asm_32:
6013 case ARM::VLD2LNqWB_fixed_Asm_16:
6014 case ARM::VLD2LNqWB_fixed_Asm_32: {
6016 // Shuffle the operands around so the lane index operand is in the
6019 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6020 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6021 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
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)); // Tied operand src (== 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::VLD3LNdWB_fixed_Asm_8:
6038 case ARM::VLD3LNdWB_fixed_Asm_16:
6039 case ARM::VLD3LNdWB_fixed_Asm_32:
6040 case ARM::VLD3LNqWB_fixed_Asm_16:
6041 case ARM::VLD3LNqWB_fixed_Asm_32: {
6043 // Shuffle the operands around so the lane index operand is in the
6046 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6047 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6048 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6050 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6052 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6053 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6054 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6055 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6056 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6057 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6059 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6061 TmpInst.addOperand(Inst.getOperand(1)); // lane
6062 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6063 TmpInst.addOperand(Inst.getOperand(5));
6068 case ARM::VLD4LNdWB_fixed_Asm_8:
6069 case ARM::VLD4LNdWB_fixed_Asm_16:
6070 case ARM::VLD4LNdWB_fixed_Asm_32:
6071 case ARM::VLD4LNqWB_fixed_Asm_16:
6072 case ARM::VLD4LNqWB_fixed_Asm_32: {
6074 // Shuffle the operands around so the lane index operand is in the
6077 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6078 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6079 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6081 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6083 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6085 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6086 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6087 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6088 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6089 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6090 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6092 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6094 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6096 TmpInst.addOperand(Inst.getOperand(1)); // lane
6097 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6098 TmpInst.addOperand(Inst.getOperand(5));
6103 case ARM::VLD1LNdAsm_8:
6104 case ARM::VLD1LNdAsm_16:
6105 case ARM::VLD1LNdAsm_32: {
6107 // Shuffle the operands around so the lane index operand is in the
6110 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6111 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6112 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6113 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6114 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6115 TmpInst.addOperand(Inst.getOperand(1)); // lane
6116 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6117 TmpInst.addOperand(Inst.getOperand(5));
6122 case ARM::VLD2LNdAsm_8:
6123 case ARM::VLD2LNdAsm_16:
6124 case ARM::VLD2LNdAsm_32:
6125 case ARM::VLD2LNqAsm_16:
6126 case ARM::VLD2LNqAsm_32: {
6128 // Shuffle the operands around so the lane index operand is in the
6131 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6132 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6133 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6135 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6136 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6137 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6138 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6140 TmpInst.addOperand(Inst.getOperand(1)); // lane
6141 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6142 TmpInst.addOperand(Inst.getOperand(5));
6147 case ARM::VLD3LNdAsm_8:
6148 case ARM::VLD3LNdAsm_16:
6149 case ARM::VLD3LNdAsm_32:
6150 case ARM::VLD3LNqAsm_16:
6151 case ARM::VLD3LNqAsm_32: {
6153 // Shuffle the operands around so the lane index operand is in the
6156 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6157 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6158 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6160 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6162 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6163 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6164 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6165 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6167 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6169 TmpInst.addOperand(Inst.getOperand(1)); // lane
6170 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6171 TmpInst.addOperand(Inst.getOperand(5));
6176 case ARM::VLD4LNdAsm_8:
6177 case ARM::VLD4LNdAsm_16:
6178 case ARM::VLD4LNdAsm_32:
6179 case ARM::VLD4LNqAsm_16:
6180 case ARM::VLD4LNqAsm_32: {
6182 // Shuffle the operands around so the lane index operand is in the
6185 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6186 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6187 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6189 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6191 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6193 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6194 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6195 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6196 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6198 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6200 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6202 TmpInst.addOperand(Inst.getOperand(1)); // lane
6203 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6204 TmpInst.addOperand(Inst.getOperand(5));
6209 // VLD3DUP single 3-element structure to all lanes instructions.
6210 case ARM::VLD3DUPdAsm_8:
6211 case ARM::VLD3DUPdAsm_16:
6212 case ARM::VLD3DUPdAsm_32:
6213 case ARM::VLD3DUPqAsm_8:
6214 case ARM::VLD3DUPqAsm_16:
6215 case ARM::VLD3DUPqAsm_32: {
6218 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6219 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6220 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6222 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6224 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6225 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6226 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6227 TmpInst.addOperand(Inst.getOperand(4));
6232 case ARM::VLD3DUPdWB_fixed_Asm_8:
6233 case ARM::VLD3DUPdWB_fixed_Asm_16:
6234 case ARM::VLD3DUPdWB_fixed_Asm_32:
6235 case ARM::VLD3DUPqWB_fixed_Asm_8:
6236 case ARM::VLD3DUPqWB_fixed_Asm_16:
6237 case ARM::VLD3DUPqWB_fixed_Asm_32: {
6240 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6241 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6242 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6244 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6246 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6247 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6248 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6249 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6250 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6251 TmpInst.addOperand(Inst.getOperand(4));
6256 case ARM::VLD3DUPdWB_register_Asm_8:
6257 case ARM::VLD3DUPdWB_register_Asm_16:
6258 case ARM::VLD3DUPdWB_register_Asm_32:
6259 case ARM::VLD3DUPqWB_register_Asm_8:
6260 case ARM::VLD3DUPqWB_register_Asm_16:
6261 case ARM::VLD3DUPqWB_register_Asm_32: {
6264 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6265 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6266 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6268 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6270 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6271 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6272 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6273 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6274 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6275 TmpInst.addOperand(Inst.getOperand(5));
6280 // VLD3 multiple 3-element structure instructions.
6281 case ARM::VLD3dAsm_8:
6282 case ARM::VLD3dAsm_16:
6283 case ARM::VLD3dAsm_32:
6284 case ARM::VLD3qAsm_8:
6285 case ARM::VLD3qAsm_16:
6286 case ARM::VLD3qAsm_32: {
6289 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6290 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6291 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6293 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6295 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6296 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6297 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6298 TmpInst.addOperand(Inst.getOperand(4));
6303 case ARM::VLD3dWB_fixed_Asm_8:
6304 case ARM::VLD3dWB_fixed_Asm_16:
6305 case ARM::VLD3dWB_fixed_Asm_32:
6306 case ARM::VLD3qWB_fixed_Asm_8:
6307 case ARM::VLD3qWB_fixed_Asm_16:
6308 case ARM::VLD3qWB_fixed_Asm_32: {
6311 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6312 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6313 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6315 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6317 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6318 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6319 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6320 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6321 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6322 TmpInst.addOperand(Inst.getOperand(4));
6327 case ARM::VLD3dWB_register_Asm_8:
6328 case ARM::VLD3dWB_register_Asm_16:
6329 case ARM::VLD3dWB_register_Asm_32:
6330 case ARM::VLD3qWB_register_Asm_8:
6331 case ARM::VLD3qWB_register_Asm_16:
6332 case ARM::VLD3qWB_register_Asm_32: {
6335 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6336 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6337 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6339 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6341 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6342 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6343 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6344 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6345 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6346 TmpInst.addOperand(Inst.getOperand(5));
6351 // VLD4DUP single 3-element structure to all lanes instructions.
6352 case ARM::VLD4DUPdAsm_8:
6353 case ARM::VLD4DUPdAsm_16:
6354 case ARM::VLD4DUPdAsm_32:
6355 case ARM::VLD4DUPqAsm_8:
6356 case ARM::VLD4DUPqAsm_16:
6357 case ARM::VLD4DUPqAsm_32: {
6360 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6361 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6362 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6364 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6366 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6368 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6369 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6370 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6371 TmpInst.addOperand(Inst.getOperand(4));
6376 case ARM::VLD4DUPdWB_fixed_Asm_8:
6377 case ARM::VLD4DUPdWB_fixed_Asm_16:
6378 case ARM::VLD4DUPdWB_fixed_Asm_32:
6379 case ARM::VLD4DUPqWB_fixed_Asm_8:
6380 case ARM::VLD4DUPqWB_fixed_Asm_16:
6381 case ARM::VLD4DUPqWB_fixed_Asm_32: {
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(1)); // Rn
6393 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6394 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6395 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6396 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6397 TmpInst.addOperand(Inst.getOperand(4));
6402 case ARM::VLD4DUPdWB_register_Asm_8:
6403 case ARM::VLD4DUPdWB_register_Asm_16:
6404 case ARM::VLD4DUPdWB_register_Asm_32:
6405 case ARM::VLD4DUPqWB_register_Asm_8:
6406 case ARM::VLD4DUPqWB_register_Asm_16:
6407 case ARM::VLD4DUPqWB_register_Asm_32: {
6410 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6411 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6412 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6414 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6416 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6418 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6419 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6420 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6421 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6422 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6423 TmpInst.addOperand(Inst.getOperand(5));
6428 // VLD4 multiple 4-element structure instructions.
6429 case ARM::VLD4dAsm_8:
6430 case ARM::VLD4dAsm_16:
6431 case ARM::VLD4dAsm_32:
6432 case ARM::VLD4qAsm_8:
6433 case ARM::VLD4qAsm_16:
6434 case ARM::VLD4qAsm_32: {
6437 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6438 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6439 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6441 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6443 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6445 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6446 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6447 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6448 TmpInst.addOperand(Inst.getOperand(4));
6453 case ARM::VLD4dWB_fixed_Asm_8:
6454 case ARM::VLD4dWB_fixed_Asm_16:
6455 case ARM::VLD4dWB_fixed_Asm_32:
6456 case ARM::VLD4qWB_fixed_Asm_8:
6457 case ARM::VLD4qWB_fixed_Asm_16:
6458 case ARM::VLD4qWB_fixed_Asm_32: {
6461 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6462 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6463 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6465 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6467 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6469 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6470 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6471 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6472 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6473 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6474 TmpInst.addOperand(Inst.getOperand(4));
6479 case ARM::VLD4dWB_register_Asm_8:
6480 case ARM::VLD4dWB_register_Asm_16:
6481 case ARM::VLD4dWB_register_Asm_32:
6482 case ARM::VLD4qWB_register_Asm_8:
6483 case ARM::VLD4qWB_register_Asm_16:
6484 case ARM::VLD4qWB_register_Asm_32: {
6487 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6488 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6489 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6491 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6493 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6495 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6496 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6497 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6498 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6499 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6500 TmpInst.addOperand(Inst.getOperand(5));
6505 // VST3 multiple 3-element structure instructions.
6506 case ARM::VST3dAsm_8:
6507 case ARM::VST3dAsm_16:
6508 case ARM::VST3dAsm_32:
6509 case ARM::VST3qAsm_8:
6510 case ARM::VST3qAsm_16:
6511 case ARM::VST3qAsm_32: {
6514 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6515 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6516 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6517 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6518 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6520 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6522 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6523 TmpInst.addOperand(Inst.getOperand(4));
6528 case ARM::VST3dWB_fixed_Asm_8:
6529 case ARM::VST3dWB_fixed_Asm_16:
6530 case ARM::VST3dWB_fixed_Asm_32:
6531 case ARM::VST3qWB_fixed_Asm_8:
6532 case ARM::VST3qWB_fixed_Asm_16:
6533 case ARM::VST3qWB_fixed_Asm_32: {
6536 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6537 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6538 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6539 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6540 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6541 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6542 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6544 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6546 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6547 TmpInst.addOperand(Inst.getOperand(4));
6552 case ARM::VST3dWB_register_Asm_8:
6553 case ARM::VST3dWB_register_Asm_16:
6554 case ARM::VST3dWB_register_Asm_32:
6555 case ARM::VST3qWB_register_Asm_8:
6556 case ARM::VST3qWB_register_Asm_16:
6557 case ARM::VST3qWB_register_Asm_32: {
6560 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6561 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6562 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6563 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6564 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6565 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6566 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6568 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6570 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6571 TmpInst.addOperand(Inst.getOperand(5));
6576 // VST4 multiple 3-element structure instructions.
6577 case ARM::VST4dAsm_8:
6578 case ARM::VST4dAsm_16:
6579 case ARM::VST4dAsm_32:
6580 case ARM::VST4qAsm_8:
6581 case ARM::VST4qAsm_16:
6582 case ARM::VST4qAsm_32: {
6585 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6586 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6587 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6588 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6589 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6591 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6593 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6595 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6596 TmpInst.addOperand(Inst.getOperand(4));
6601 case ARM::VST4dWB_fixed_Asm_8:
6602 case ARM::VST4dWB_fixed_Asm_16:
6603 case ARM::VST4dWB_fixed_Asm_32:
6604 case ARM::VST4qWB_fixed_Asm_8:
6605 case ARM::VST4qWB_fixed_Asm_16:
6606 case ARM::VST4qWB_fixed_Asm_32: {
6609 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6610 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6611 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6612 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6613 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6614 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6615 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6617 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6619 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6621 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6622 TmpInst.addOperand(Inst.getOperand(4));
6627 case ARM::VST4dWB_register_Asm_8:
6628 case ARM::VST4dWB_register_Asm_16:
6629 case ARM::VST4dWB_register_Asm_32:
6630 case ARM::VST4qWB_register_Asm_8:
6631 case ARM::VST4qWB_register_Asm_16:
6632 case ARM::VST4qWB_register_Asm_32: {
6635 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6636 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6637 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6638 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6639 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6640 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6641 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6643 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6645 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6647 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6648 TmpInst.addOperand(Inst.getOperand(5));
6653 // Handle the Thumb2 mode MOV complex aliases.
6655 case ARM::t2MOVSsr: {
6656 // Which instruction to expand to depends on the CCOut operand and
6657 // whether we're in an IT block if the register operands are low
6659 bool isNarrow = false;
6660 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
6661 isARMLowRegister(Inst.getOperand(1).getReg()) &&
6662 isARMLowRegister(Inst.getOperand(2).getReg()) &&
6663 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
6664 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsr))
6668 switch(ARM_AM::getSORegShOp(Inst.getOperand(3).getImm())) {
6669 default: llvm_unreachable("unexpected opcode!");
6670 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRrr : ARM::t2ASRrr; break;
6671 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRrr : ARM::t2LSRrr; break;
6672 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLrr : ARM::t2LSLrr; break;
6673 case ARM_AM::ror: newOpc = isNarrow ? ARM::tROR : ARM::t2RORrr; break;
6675 TmpInst.setOpcode(newOpc);
6676 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6678 TmpInst.addOperand(MCOperand::CreateReg(
6679 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
6680 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6681 TmpInst.addOperand(Inst.getOperand(2)); // Rm
6682 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6683 TmpInst.addOperand(Inst.getOperand(5));
6685 TmpInst.addOperand(MCOperand::CreateReg(
6686 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
6691 case ARM::t2MOVSsi: {
6692 // Which instruction to expand to depends on the CCOut operand and
6693 // whether we're in an IT block if the register operands are low
6695 bool isNarrow = false;
6696 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
6697 isARMLowRegister(Inst.getOperand(1).getReg()) &&
6698 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsi))
6702 switch(ARM_AM::getSORegShOp(Inst.getOperand(2).getImm())) {
6703 default: llvm_unreachable("unexpected opcode!");
6704 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRri : ARM::t2ASRri; break;
6705 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRri : ARM::t2LSRri; break;
6706 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLri : ARM::t2LSLri; break;
6707 case ARM_AM::ror: newOpc = ARM::t2RORri; isNarrow = false; break;
6708 case ARM_AM::rrx: isNarrow = false; newOpc = ARM::t2RRX; break;
6710 unsigned Ammount = ARM_AM::getSORegOffset(Inst.getOperand(2).getImm());
6711 if (Ammount == 32) Ammount = 0;
6712 TmpInst.setOpcode(newOpc);
6713 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6715 TmpInst.addOperand(MCOperand::CreateReg(
6716 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
6717 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6718 if (newOpc != ARM::t2RRX)
6719 TmpInst.addOperand(MCOperand::CreateImm(Ammount));
6720 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6721 TmpInst.addOperand(Inst.getOperand(4));
6723 TmpInst.addOperand(MCOperand::CreateReg(
6724 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
6728 // Handle the ARM mode MOV complex aliases.
6733 ARM_AM::ShiftOpc ShiftTy;
6734 switch(Inst.getOpcode()) {
6735 default: llvm_unreachable("unexpected opcode!");
6736 case ARM::ASRr: ShiftTy = ARM_AM::asr; break;
6737 case ARM::LSRr: ShiftTy = ARM_AM::lsr; break;
6738 case ARM::LSLr: ShiftTy = ARM_AM::lsl; break;
6739 case ARM::RORr: ShiftTy = ARM_AM::ror; break;
6741 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, 0);
6743 TmpInst.setOpcode(ARM::MOVsr);
6744 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6745 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6746 TmpInst.addOperand(Inst.getOperand(2)); // Rm
6747 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
6748 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6749 TmpInst.addOperand(Inst.getOperand(4));
6750 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
6758 ARM_AM::ShiftOpc ShiftTy;
6759 switch(Inst.getOpcode()) {
6760 default: llvm_unreachable("unexpected opcode!");
6761 case ARM::ASRi: ShiftTy = ARM_AM::asr; break;
6762 case ARM::LSRi: ShiftTy = ARM_AM::lsr; break;
6763 case ARM::LSLi: ShiftTy = ARM_AM::lsl; break;
6764 case ARM::RORi: ShiftTy = ARM_AM::ror; break;
6766 // A shift by zero is a plain MOVr, not a MOVsi.
6767 unsigned Amt = Inst.getOperand(2).getImm();
6768 unsigned Opc = Amt == 0 ? ARM::MOVr : ARM::MOVsi;
6769 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, Amt);
6771 TmpInst.setOpcode(Opc);
6772 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6773 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6774 if (Opc == ARM::MOVsi)
6775 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
6776 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6777 TmpInst.addOperand(Inst.getOperand(4));
6778 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
6783 unsigned Shifter = ARM_AM::getSORegOpc(ARM_AM::rrx, 0);
6785 TmpInst.setOpcode(ARM::MOVsi);
6786 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6787 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6788 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
6789 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6790 TmpInst.addOperand(Inst.getOperand(3));
6791 TmpInst.addOperand(Inst.getOperand(4)); // cc_out
6795 case ARM::t2LDMIA_UPD: {
6796 // If this is a load of a single register, then we should use
6797 // a post-indexed LDR instruction instead, per the ARM ARM.
6798 if (Inst.getNumOperands() != 5)
6801 TmpInst.setOpcode(ARM::t2LDR_POST);
6802 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6803 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6804 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6805 TmpInst.addOperand(MCOperand::CreateImm(4));
6806 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6807 TmpInst.addOperand(Inst.getOperand(3));
6811 case ARM::t2STMDB_UPD: {
6812 // If this is a store of a single register, then we should use
6813 // a pre-indexed STR instruction instead, per the ARM ARM.
6814 if (Inst.getNumOperands() != 5)
6817 TmpInst.setOpcode(ARM::t2STR_PRE);
6818 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6819 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6820 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6821 TmpInst.addOperand(MCOperand::CreateImm(-4));
6822 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6823 TmpInst.addOperand(Inst.getOperand(3));
6827 case ARM::LDMIA_UPD:
6828 // If this is a load of a single register via a 'pop', then we should use
6829 // a post-indexed LDR instruction instead, per the ARM ARM.
6830 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "pop" &&
6831 Inst.getNumOperands() == 5) {
6833 TmpInst.setOpcode(ARM::LDR_POST_IMM);
6834 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6835 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6836 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6837 TmpInst.addOperand(MCOperand::CreateReg(0)); // am2offset
6838 TmpInst.addOperand(MCOperand::CreateImm(4));
6839 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6840 TmpInst.addOperand(Inst.getOperand(3));
6845 case ARM::STMDB_UPD:
6846 // If this is a store of a single register via a 'push', then we should use
6847 // a pre-indexed STR instruction instead, per the ARM ARM.
6848 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "push" &&
6849 Inst.getNumOperands() == 5) {
6851 TmpInst.setOpcode(ARM::STR_PRE_IMM);
6852 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6853 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6854 TmpInst.addOperand(Inst.getOperand(1)); // addrmode_imm12
6855 TmpInst.addOperand(MCOperand::CreateImm(-4));
6856 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6857 TmpInst.addOperand(Inst.getOperand(3));
6861 case ARM::t2ADDri12:
6862 // If the immediate fits for encoding T3 (t2ADDri) and the generic "add"
6863 // mnemonic was used (not "addw"), encoding T3 is preferred.
6864 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "add" ||
6865 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
6867 Inst.setOpcode(ARM::t2ADDri);
6868 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
6870 case ARM::t2SUBri12:
6871 // If the immediate fits for encoding T3 (t2SUBri) and the generic "sub"
6872 // mnemonic was used (not "subw"), encoding T3 is preferred.
6873 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "sub" ||
6874 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
6876 Inst.setOpcode(ARM::t2SUBri);
6877 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
6880 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
6881 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
6882 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
6883 // to encoding T1 if <Rd> is omitted."
6884 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
6885 Inst.setOpcode(ARM::tADDi3);
6890 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
6891 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
6892 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
6893 // to encoding T1 if <Rd> is omitted."
6894 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
6895 Inst.setOpcode(ARM::tSUBi3);
6900 case ARM::t2SUBri: {
6901 // If the destination and first source operand are the same, and
6902 // the flags are compatible with the current IT status, use encoding T2
6903 // instead of T3. For compatibility with the system 'as'. Make sure the
6904 // wide encoding wasn't explicit.
6905 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
6906 !isARMLowRegister(Inst.getOperand(0).getReg()) ||
6907 (unsigned)Inst.getOperand(2).getImm() > 255 ||
6908 ((!inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR) ||
6909 (inITBlock() && Inst.getOperand(5).getReg() != 0)) ||
6910 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
6911 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
6914 TmpInst.setOpcode(Inst.getOpcode() == ARM::t2ADDri ?
6915 ARM::tADDi8 : ARM::tSUBi8);
6916 TmpInst.addOperand(Inst.getOperand(0));
6917 TmpInst.addOperand(Inst.getOperand(5));
6918 TmpInst.addOperand(Inst.getOperand(0));
6919 TmpInst.addOperand(Inst.getOperand(2));
6920 TmpInst.addOperand(Inst.getOperand(3));
6921 TmpInst.addOperand(Inst.getOperand(4));
6925 case ARM::t2ADDrr: {
6926 // If the destination and first source operand are the same, and
6927 // there's no setting of the flags, use encoding T2 instead of T3.
6928 // Note that this is only for ADD, not SUB. This mirrors the system
6929 // 'as' behaviour. Make sure the wide encoding wasn't explicit.
6930 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
6931 Inst.getOperand(5).getReg() != 0 ||
6932 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
6933 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
6936 TmpInst.setOpcode(ARM::tADDhirr);
6937 TmpInst.addOperand(Inst.getOperand(0));
6938 TmpInst.addOperand(Inst.getOperand(0));
6939 TmpInst.addOperand(Inst.getOperand(2));
6940 TmpInst.addOperand(Inst.getOperand(3));
6941 TmpInst.addOperand(Inst.getOperand(4));
6946 // A Thumb conditional branch outside of an IT block is a tBcc.
6947 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()) {
6948 Inst.setOpcode(ARM::tBcc);
6953 // A Thumb2 conditional branch outside of an IT block is a t2Bcc.
6954 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()){
6955 Inst.setOpcode(ARM::t2Bcc);
6960 // If the conditional is AL or we're in an IT block, we really want t2B.
6961 if (Inst.getOperand(1).getImm() == ARMCC::AL || inITBlock()) {
6962 Inst.setOpcode(ARM::t2B);
6967 // If the conditional is AL, we really want tB.
6968 if (Inst.getOperand(1).getImm() == ARMCC::AL) {
6969 Inst.setOpcode(ARM::tB);
6974 // If the register list contains any high registers, or if the writeback
6975 // doesn't match what tLDMIA can do, we need to use the 32-bit encoding
6976 // instead if we're in Thumb2. Otherwise, this should have generated
6977 // an error in validateInstruction().
6978 unsigned Rn = Inst.getOperand(0).getReg();
6979 bool hasWritebackToken =
6980 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
6981 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
6982 bool listContainsBase;
6983 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) ||
6984 (!listContainsBase && !hasWritebackToken) ||
6985 (listContainsBase && hasWritebackToken)) {
6986 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
6987 assert (isThumbTwo());
6988 Inst.setOpcode(hasWritebackToken ? ARM::t2LDMIA_UPD : ARM::t2LDMIA);
6989 // If we're switching to the updating version, we need to insert
6990 // the writeback tied operand.
6991 if (hasWritebackToken)
6992 Inst.insert(Inst.begin(),
6993 MCOperand::CreateReg(Inst.getOperand(0).getReg()));
6998 case ARM::tSTMIA_UPD: {
6999 // If the register list contains any high registers, we need to use
7000 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7001 // should have generated an error in validateInstruction().
7002 unsigned Rn = Inst.getOperand(0).getReg();
7003 bool listContainsBase;
7004 if (checkLowRegisterList(Inst, 4, Rn, 0, listContainsBase)) {
7005 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7006 assert (isThumbTwo());
7007 Inst.setOpcode(ARM::t2STMIA_UPD);
7013 bool listContainsBase;
7014 // If the register list contains any high registers, we need to use
7015 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7016 // should have generated an error in validateInstruction().
7017 if (!checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase))
7019 assert (isThumbTwo());
7020 Inst.setOpcode(ARM::t2LDMIA_UPD);
7021 // Add the base register and writeback operands.
7022 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7023 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7027 bool listContainsBase;
7028 if (!checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase))
7030 assert (isThumbTwo());
7031 Inst.setOpcode(ARM::t2STMDB_UPD);
7032 // Add the base register and writeback operands.
7033 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7034 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7038 // If we can use the 16-bit encoding and the user didn't explicitly
7039 // request the 32-bit variant, transform it here.
7040 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7041 (unsigned)Inst.getOperand(1).getImm() <= 255 &&
7042 ((!inITBlock() && Inst.getOperand(2).getImm() == ARMCC::AL &&
7043 Inst.getOperand(4).getReg() == ARM::CPSR) ||
7044 (inITBlock() && Inst.getOperand(4).getReg() == 0)) &&
7045 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7046 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7047 // The operands aren't in the same order for tMOVi8...
7049 TmpInst.setOpcode(ARM::tMOVi8);
7050 TmpInst.addOperand(Inst.getOperand(0));
7051 TmpInst.addOperand(Inst.getOperand(4));
7052 TmpInst.addOperand(Inst.getOperand(1));
7053 TmpInst.addOperand(Inst.getOperand(2));
7054 TmpInst.addOperand(Inst.getOperand(3));
7061 // If we can use the 16-bit encoding and the user didn't explicitly
7062 // request the 32-bit variant, transform it here.
7063 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7064 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7065 Inst.getOperand(2).getImm() == ARMCC::AL &&
7066 Inst.getOperand(4).getReg() == ARM::CPSR &&
7067 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7068 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7069 // The operands aren't the same for tMOV[S]r... (no cc_out)
7071 TmpInst.setOpcode(Inst.getOperand(4).getReg() ? ARM::tMOVSr : ARM::tMOVr);
7072 TmpInst.addOperand(Inst.getOperand(0));
7073 TmpInst.addOperand(Inst.getOperand(1));
7074 TmpInst.addOperand(Inst.getOperand(2));
7075 TmpInst.addOperand(Inst.getOperand(3));
7085 // If we can use the 16-bit encoding and the user didn't explicitly
7086 // request the 32-bit variant, transform it here.
7087 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7088 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7089 Inst.getOperand(2).getImm() == 0 &&
7090 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7091 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7093 switch (Inst.getOpcode()) {
7094 default: llvm_unreachable("Illegal opcode!");
7095 case ARM::t2SXTH: NewOpc = ARM::tSXTH; break;
7096 case ARM::t2SXTB: NewOpc = ARM::tSXTB; break;
7097 case ARM::t2UXTH: NewOpc = ARM::tUXTH; break;
7098 case ARM::t2UXTB: NewOpc = ARM::tUXTB; break;
7100 // The operands aren't the same for thumb1 (no rotate operand).
7102 TmpInst.setOpcode(NewOpc);
7103 TmpInst.addOperand(Inst.getOperand(0));
7104 TmpInst.addOperand(Inst.getOperand(1));
7105 TmpInst.addOperand(Inst.getOperand(3));
7106 TmpInst.addOperand(Inst.getOperand(4));
7113 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(2).getImm());
7114 if (SOpc == ARM_AM::rrx) return false;
7115 if (ARM_AM::getSORegOffset(Inst.getOperand(2).getImm()) == 0) {
7116 // Shifting by zero is accepted as a vanilla 'MOVr'
7118 TmpInst.setOpcode(ARM::MOVr);
7119 TmpInst.addOperand(Inst.getOperand(0));
7120 TmpInst.addOperand(Inst.getOperand(1));
7121 TmpInst.addOperand(Inst.getOperand(3));
7122 TmpInst.addOperand(Inst.getOperand(4));
7123 TmpInst.addOperand(Inst.getOperand(5));
7136 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(3).getImm());
7137 if (SOpc == ARM_AM::rrx) return false;
7138 switch (Inst.getOpcode()) {
7139 default: llvm_unreachable("unexpected opcode!");
7140 case ARM::ANDrsi: newOpc = ARM::ANDrr; break;
7141 case ARM::ORRrsi: newOpc = ARM::ORRrr; break;
7142 case ARM::EORrsi: newOpc = ARM::EORrr; break;
7143 case ARM::BICrsi: newOpc = ARM::BICrr; break;
7144 case ARM::SUBrsi: newOpc = ARM::SUBrr; break;
7145 case ARM::ADDrsi: newOpc = ARM::ADDrr; break;
7147 // If the shift is by zero, use the non-shifted instruction definition.
7148 if (ARM_AM::getSORegOffset(Inst.getOperand(3).getImm()) == 0) {
7150 TmpInst.setOpcode(newOpc);
7151 TmpInst.addOperand(Inst.getOperand(0));
7152 TmpInst.addOperand(Inst.getOperand(1));
7153 TmpInst.addOperand(Inst.getOperand(2));
7154 TmpInst.addOperand(Inst.getOperand(4));
7155 TmpInst.addOperand(Inst.getOperand(5));
7156 TmpInst.addOperand(Inst.getOperand(6));
7164 // The mask bits for all but the first condition are represented as
7165 // the low bit of the condition code value implies 't'. We currently
7166 // always have 1 implies 't', so XOR toggle the bits if the low bit
7167 // of the condition code is zero. The encoding also expects the low
7168 // bit of the condition to be encoded as bit 4 of the mask operand,
7169 // so mask that in if needed
7170 MCOperand &MO = Inst.getOperand(1);
7171 unsigned Mask = MO.getImm();
7172 unsigned OrigMask = Mask;
7173 unsigned TZ = CountTrailingZeros_32(Mask);
7174 if ((Inst.getOperand(0).getImm() & 1) == 0) {
7175 assert(Mask && TZ <= 3 && "illegal IT mask value!");
7176 for (unsigned i = 3; i != TZ; --i)
7182 // Set up the IT block state according to the IT instruction we just
7184 assert(!inITBlock() && "nested IT blocks?!");
7185 ITState.Cond = ARMCC::CondCodes(Inst.getOperand(0).getImm());
7186 ITState.Mask = OrigMask; // Use the original mask, not the updated one.
7187 ITState.CurPosition = 0;
7188 ITState.FirstCond = true;
7195 unsigned ARMAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
7196 // 16-bit thumb arithmetic instructions either require or preclude the 'S'
7197 // suffix depending on whether they're in an IT block or not.
7198 unsigned Opc = Inst.getOpcode();
7199 const MCInstrDesc &MCID = getInstDesc(Opc);
7200 if (MCID.TSFlags & ARMII::ThumbArithFlagSetting) {
7201 assert(MCID.hasOptionalDef() &&
7202 "optionally flag setting instruction missing optional def operand");
7203 assert(MCID.NumOperands == Inst.getNumOperands() &&
7204 "operand count mismatch!");
7205 // Find the optional-def operand (cc_out).
7208 !MCID.OpInfo[OpNo].isOptionalDef() && OpNo < MCID.NumOperands;
7211 // If we're parsing Thumb1, reject it completely.
7212 if (isThumbOne() && Inst.getOperand(OpNo).getReg() != ARM::CPSR)
7213 return Match_MnemonicFail;
7214 // If we're parsing Thumb2, which form is legal depends on whether we're
7216 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() != ARM::CPSR &&
7218 return Match_RequiresITBlock;
7219 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() == ARM::CPSR &&
7221 return Match_RequiresNotITBlock;
7223 // Some high-register supporting Thumb1 encodings only allow both registers
7224 // to be from r0-r7 when in Thumb2.
7225 else if (Opc == ARM::tADDhirr && isThumbOne() &&
7226 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7227 isARMLowRegister(Inst.getOperand(2).getReg()))
7228 return Match_RequiresThumb2;
7229 // Others only require ARMv6 or later.
7230 else if (Opc == ARM::tMOVr && isThumbOne() && !hasV6Ops() &&
7231 isARMLowRegister(Inst.getOperand(0).getReg()) &&
7232 isARMLowRegister(Inst.getOperand(1).getReg()))
7233 return Match_RequiresV6;
7234 return Match_Success;
7238 MatchAndEmitInstruction(SMLoc IDLoc,
7239 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
7243 unsigned MatchResult;
7244 MatchResult = MatchInstructionImpl(Operands, Inst, ErrorInfo);
7245 switch (MatchResult) {
7248 // Context sensitive operand constraints aren't handled by the matcher,
7249 // so check them here.
7250 if (validateInstruction(Inst, Operands)) {
7251 // Still progress the IT block, otherwise one wrong condition causes
7252 // nasty cascading errors.
7253 forwardITPosition();
7257 // Some instructions need post-processing to, for example, tweak which
7258 // encoding is selected. Loop on it while changes happen so the
7259 // individual transformations can chain off each other. E.g.,
7260 // tPOP(r8)->t2LDMIA_UPD(sp,r8)->t2STR_POST(sp,r8)
7261 while (processInstruction(Inst, Operands))
7264 // Only move forward at the very end so that everything in validate
7265 // and process gets a consistent answer about whether we're in an IT
7267 forwardITPosition();
7269 // ITasm is an ARM mode pseudo-instruction that just sets the ITblock and
7270 // doesn't actually encode.
7271 if (Inst.getOpcode() == ARM::ITasm)
7275 Out.EmitInstruction(Inst);
7277 case Match_MissingFeature:
7278 Error(IDLoc, "instruction requires a CPU feature not currently enabled");
7280 case Match_InvalidOperand: {
7281 SMLoc ErrorLoc = IDLoc;
7282 if (ErrorInfo != ~0U) {
7283 if (ErrorInfo >= Operands.size())
7284 return Error(IDLoc, "too few operands for instruction");
7286 ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7287 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7290 return Error(ErrorLoc, "invalid operand for instruction");
7292 case Match_MnemonicFail:
7293 return Error(IDLoc, "invalid instruction");
7294 case Match_ConversionFail:
7295 // The converter function will have already emited a diagnostic.
7297 case Match_RequiresNotITBlock:
7298 return Error(IDLoc, "flag setting instruction only valid outside IT block");
7299 case Match_RequiresITBlock:
7300 return Error(IDLoc, "instruction only valid inside IT block");
7301 case Match_RequiresV6:
7302 return Error(IDLoc, "instruction variant requires ARMv6 or later");
7303 case Match_RequiresThumb2:
7304 return Error(IDLoc, "instruction variant requires Thumb2");
7307 llvm_unreachable("Implement any new match types added!");
7310 /// parseDirective parses the arm specific directives
7311 bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) {
7312 StringRef IDVal = DirectiveID.getIdentifier();
7313 if (IDVal == ".word")
7314 return parseDirectiveWord(4, DirectiveID.getLoc());
7315 else if (IDVal == ".thumb")
7316 return parseDirectiveThumb(DirectiveID.getLoc());
7317 else if (IDVal == ".arm")
7318 return parseDirectiveARM(DirectiveID.getLoc());
7319 else if (IDVal == ".thumb_func")
7320 return parseDirectiveThumbFunc(DirectiveID.getLoc());
7321 else if (IDVal == ".code")
7322 return parseDirectiveCode(DirectiveID.getLoc());
7323 else if (IDVal == ".syntax")
7324 return parseDirectiveSyntax(DirectiveID.getLoc());
7325 else if (IDVal == ".unreq")
7326 return parseDirectiveUnreq(DirectiveID.getLoc());
7327 else if (IDVal == ".arch")
7328 return parseDirectiveArch(DirectiveID.getLoc());
7329 else if (IDVal == ".eabi_attribute")
7330 return parseDirectiveEabiAttr(DirectiveID.getLoc());
7334 /// parseDirectiveWord
7335 /// ::= .word [ expression (, expression)* ]
7336 bool ARMAsmParser::parseDirectiveWord(unsigned Size, SMLoc L) {
7337 if (getLexer().isNot(AsmToken::EndOfStatement)) {
7339 const MCExpr *Value;
7340 if (getParser().ParseExpression(Value))
7343 getParser().getStreamer().EmitValue(Value, Size, 0/*addrspace*/);
7345 if (getLexer().is(AsmToken::EndOfStatement))
7348 // FIXME: Improve diagnostic.
7349 if (getLexer().isNot(AsmToken::Comma))
7350 return Error(L, "unexpected token in directive");
7359 /// parseDirectiveThumb
7361 bool ARMAsmParser::parseDirectiveThumb(SMLoc L) {
7362 if (getLexer().isNot(AsmToken::EndOfStatement))
7363 return Error(L, "unexpected token in directive");
7368 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
7372 /// parseDirectiveARM
7374 bool ARMAsmParser::parseDirectiveARM(SMLoc L) {
7375 if (getLexer().isNot(AsmToken::EndOfStatement))
7376 return Error(L, "unexpected token in directive");
7381 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
7385 /// parseDirectiveThumbFunc
7386 /// ::= .thumbfunc symbol_name
7387 bool ARMAsmParser::parseDirectiveThumbFunc(SMLoc L) {
7388 const MCAsmInfo &MAI = getParser().getStreamer().getContext().getAsmInfo();
7389 bool isMachO = MAI.hasSubsectionsViaSymbols();
7391 bool needFuncName = true;
7393 // Darwin asm has (optionally) function name after .thumb_func direction
7396 const AsmToken &Tok = Parser.getTok();
7397 if (Tok.isNot(AsmToken::EndOfStatement)) {
7398 if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String))
7399 return Error(L, "unexpected token in .thumb_func directive");
7400 Name = Tok.getIdentifier();
7401 Parser.Lex(); // Consume the identifier token.
7402 needFuncName = false;
7406 if (getLexer().isNot(AsmToken::EndOfStatement))
7407 return Error(L, "unexpected token in directive");
7409 // Eat the end of statement and any blank lines that follow.
7410 while (getLexer().is(AsmToken::EndOfStatement))
7413 // FIXME: assuming function name will be the line following .thumb_func
7414 // We really should be checking the next symbol definition even if there's
7415 // stuff in between.
7417 Name = Parser.getTok().getIdentifier();
7420 // Mark symbol as a thumb symbol.
7421 MCSymbol *Func = getParser().getContext().GetOrCreateSymbol(Name);
7422 getParser().getStreamer().EmitThumbFunc(Func);
7426 /// parseDirectiveSyntax
7427 /// ::= .syntax unified | divided
7428 bool ARMAsmParser::parseDirectiveSyntax(SMLoc L) {
7429 const AsmToken &Tok = Parser.getTok();
7430 if (Tok.isNot(AsmToken::Identifier))
7431 return Error(L, "unexpected token in .syntax directive");
7432 StringRef Mode = Tok.getString();
7433 if (Mode == "unified" || Mode == "UNIFIED")
7435 else if (Mode == "divided" || Mode == "DIVIDED")
7436 return Error(L, "'.syntax divided' arm asssembly not supported");
7438 return Error(L, "unrecognized syntax mode in .syntax directive");
7440 if (getLexer().isNot(AsmToken::EndOfStatement))
7441 return Error(Parser.getTok().getLoc(), "unexpected token in directive");
7444 // TODO tell the MC streamer the mode
7445 // getParser().getStreamer().Emit???();
7449 /// parseDirectiveCode
7450 /// ::= .code 16 | 32
7451 bool ARMAsmParser::parseDirectiveCode(SMLoc L) {
7452 const AsmToken &Tok = Parser.getTok();
7453 if (Tok.isNot(AsmToken::Integer))
7454 return Error(L, "unexpected token in .code directive");
7455 int64_t Val = Parser.getTok().getIntVal();
7461 return Error(L, "invalid operand to .code directive");
7463 if (getLexer().isNot(AsmToken::EndOfStatement))
7464 return Error(Parser.getTok().getLoc(), "unexpected token in directive");
7470 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
7474 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
7480 /// parseDirectiveReq
7481 /// ::= name .req registername
7482 bool ARMAsmParser::parseDirectiveReq(StringRef Name, SMLoc L) {
7483 Parser.Lex(); // Eat the '.req' token.
7485 SMLoc SRegLoc, ERegLoc;
7486 if (ParseRegister(Reg, SRegLoc, ERegLoc)) {
7487 Parser.EatToEndOfStatement();
7488 return Error(SRegLoc, "register name expected");
7491 // Shouldn't be anything else.
7492 if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
7493 Parser.EatToEndOfStatement();
7494 return Error(Parser.getTok().getLoc(),
7495 "unexpected input in .req directive.");
7498 Parser.Lex(); // Consume the EndOfStatement
7500 if (RegisterReqs.GetOrCreateValue(Name, Reg).getValue() != Reg)
7501 return Error(SRegLoc, "redefinition of '" + Name +
7502 "' does not match original.");
7507 /// parseDirectiveUneq
7508 /// ::= .unreq registername
7509 bool ARMAsmParser::parseDirectiveUnreq(SMLoc L) {
7510 if (Parser.getTok().isNot(AsmToken::Identifier)) {
7511 Parser.EatToEndOfStatement();
7512 return Error(L, "unexpected input in .unreq directive.");
7514 RegisterReqs.erase(Parser.getTok().getIdentifier());
7515 Parser.Lex(); // Eat the identifier.
7519 /// parseDirectiveArch
7521 bool ARMAsmParser::parseDirectiveArch(SMLoc L) {
7525 /// parseDirectiveEabiAttr
7526 /// ::= .eabi_attribute int, int
7527 bool ARMAsmParser::parseDirectiveEabiAttr(SMLoc L) {
7531 extern "C" void LLVMInitializeARMAsmLexer();
7533 /// Force static initialization.
7534 extern "C" void LLVMInitializeARMAsmParser() {
7535 RegisterMCAsmParser<ARMAsmParser> X(TheARMTarget);
7536 RegisterMCAsmParser<ARMAsmParser> Y(TheThumbTarget);
7537 LLVMInitializeARMAsmLexer();
7540 #define GET_REGISTER_MATCHER
7541 #define GET_MATCHER_IMPLEMENTATION
7542 #include "ARMGenAsmMatcher.inc"