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 == "movs" && isThumb()))) {
4663 Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1);
4664 CarrySetting = true;
4667 // The "cps" instruction can have a interrupt mode operand which is glued into
4668 // the mnemonic. Check if this is the case, split it and parse the imod op
4669 if (Mnemonic.startswith("cps")) {
4670 // Split out any imod code.
4672 StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2, 2))
4673 .Case("ie", ARM_PROC::IE)
4674 .Case("id", ARM_PROC::ID)
4677 Mnemonic = Mnemonic.slice(0, Mnemonic.size()-2);
4678 ProcessorIMod = IMod;
4682 // The "it" instruction has the condition mask on the end of the mnemonic.
4683 if (Mnemonic.startswith("it")) {
4684 ITMask = Mnemonic.slice(2, Mnemonic.size());
4685 Mnemonic = Mnemonic.slice(0, 2);
4691 /// \brief Given a canonical mnemonic, determine if the instruction ever allows
4692 /// inclusion of carry set or predication code operands.
4694 // FIXME: It would be nice to autogen this.
4696 getMnemonicAcceptInfo(StringRef Mnemonic, bool &CanAcceptCarrySet,
4697 bool &CanAcceptPredicationCode) {
4698 if (Mnemonic == "and" || Mnemonic == "lsl" || Mnemonic == "lsr" ||
4699 Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" ||
4700 Mnemonic == "add" || Mnemonic == "adc" ||
4701 Mnemonic == "mul" || Mnemonic == "bic" || Mnemonic == "asr" ||
4702 Mnemonic == "orr" || Mnemonic == "mvn" ||
4703 Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
4704 Mnemonic == "sbc" || Mnemonic == "eor" || Mnemonic == "neg" ||
4705 (!isThumb() && (Mnemonic == "smull" || Mnemonic == "mov" ||
4706 Mnemonic == "mla" || Mnemonic == "smlal" ||
4707 Mnemonic == "umlal" || Mnemonic == "umull"))) {
4708 CanAcceptCarrySet = true;
4710 CanAcceptCarrySet = false;
4712 if (Mnemonic == "cbnz" || Mnemonic == "setend" || Mnemonic == "dmb" ||
4713 Mnemonic == "cps" || Mnemonic == "mcr2" || Mnemonic == "it" ||
4714 Mnemonic == "mcrr2" || Mnemonic == "cbz" || Mnemonic == "cdp2" ||
4715 Mnemonic == "trap" || Mnemonic == "mrc2" || Mnemonic == "mrrc2" ||
4716 Mnemonic == "dsb" || Mnemonic == "isb" || Mnemonic == "setend" ||
4717 (Mnemonic == "clrex" && !isThumb()) ||
4718 (Mnemonic == "nop" && isThumbOne()) ||
4719 ((Mnemonic == "pld" || Mnemonic == "pli" || Mnemonic == "pldw" ||
4720 Mnemonic == "ldc2" || Mnemonic == "ldc2l" ||
4721 Mnemonic == "stc2" || Mnemonic == "stc2l") && !isThumb()) ||
4722 ((Mnemonic.startswith("rfe") || Mnemonic.startswith("srs")) &&
4724 Mnemonic.startswith("cps") || (Mnemonic == "movs" && isThumbOne())) {
4725 CanAcceptPredicationCode = false;
4727 CanAcceptPredicationCode = true;
4730 if (Mnemonic == "bkpt" || Mnemonic == "mcr" || Mnemonic == "mcrr" ||
4731 Mnemonic == "mrc" || Mnemonic == "mrrc" || Mnemonic == "cdp")
4732 CanAcceptPredicationCode = false;
4736 bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
4737 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4738 // FIXME: This is all horribly hacky. We really need a better way to deal
4739 // with optional operands like this in the matcher table.
4741 // The 'mov' mnemonic is special. One variant has a cc_out operand, while
4742 // another does not. Specifically, the MOVW instruction does not. So we
4743 // special case it here and remove the defaulted (non-setting) cc_out
4744 // operand if that's the instruction we're trying to match.
4746 // We do this as post-processing of the explicit operands rather than just
4747 // conditionally adding the cc_out in the first place because we need
4748 // to check the type of the parsed immediate operand.
4749 if (Mnemonic == "mov" && Operands.size() > 4 && !isThumb() &&
4750 !static_cast<ARMOperand*>(Operands[4])->isARMSOImm() &&
4751 static_cast<ARMOperand*>(Operands[4])->isImm0_65535Expr() &&
4752 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4755 // Register-register 'add' for thumb does not have a cc_out operand
4756 // when there are only two register operands.
4757 if (isThumb() && Mnemonic == "add" && Operands.size() == 5 &&
4758 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4759 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4760 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4762 // Register-register 'add' for thumb does not have a cc_out operand
4763 // when it's an ADD Rdm, SP, {Rdm|#imm0_255} instruction. We do
4764 // have to check the immediate range here since Thumb2 has a variant
4765 // that can handle a different range and has a cc_out operand.
4766 if (((isThumb() && Mnemonic == "add") ||
4767 (isThumbTwo() && Mnemonic == "sub")) &&
4768 Operands.size() == 6 &&
4769 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4770 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4771 static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::SP &&
4772 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4773 (static_cast<ARMOperand*>(Operands[5])->isReg() ||
4774 static_cast<ARMOperand*>(Operands[5])->isImm0_1020s4()))
4776 // For Thumb2, add/sub immediate does not have a cc_out operand for the
4777 // imm0_4095 variant. That's the least-preferred variant when
4778 // selecting via the generic "add" mnemonic, so to know that we
4779 // should remove the cc_out operand, we have to explicitly check that
4780 // it's not one of the other variants. Ugh.
4781 if (isThumbTwo() && (Mnemonic == "add" || Mnemonic == "sub") &&
4782 Operands.size() == 6 &&
4783 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4784 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4785 static_cast<ARMOperand*>(Operands[5])->isImm()) {
4786 // Nest conditions rather than one big 'if' statement for readability.
4788 // If either register is a high reg, it's either one of the SP
4789 // variants (handled above) or a 32-bit encoding, so we just
4790 // check against T3. If the second register is the PC, this is an
4791 // alternate form of ADR, which uses encoding T4, so check for that too.
4792 if ((!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
4793 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg())) &&
4794 static_cast<ARMOperand*>(Operands[4])->getReg() != ARM::PC &&
4795 static_cast<ARMOperand*>(Operands[5])->isT2SOImm())
4797 // If both registers are low, we're in an IT block, and the immediate is
4798 // in range, we should use encoding T1 instead, which has a cc_out.
4800 isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
4801 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) &&
4802 static_cast<ARMOperand*>(Operands[5])->isImm0_7())
4805 // Otherwise, we use encoding T4, which does not have a cc_out
4810 // The thumb2 multiply instruction doesn't have a CCOut register, so
4811 // if we have a "mul" mnemonic in Thumb mode, check if we'll be able to
4812 // use the 16-bit encoding or not.
4813 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 6 &&
4814 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4815 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4816 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4817 static_cast<ARMOperand*>(Operands[5])->isReg() &&
4818 // If the registers aren't low regs, the destination reg isn't the
4819 // same as one of the source regs, or the cc_out operand is zero
4820 // outside of an IT block, we have to use the 32-bit encoding, so
4821 // remove the cc_out operand.
4822 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
4823 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
4824 !isARMLowRegister(static_cast<ARMOperand*>(Operands[5])->getReg()) ||
4826 (static_cast<ARMOperand*>(Operands[3])->getReg() !=
4827 static_cast<ARMOperand*>(Operands[5])->getReg() &&
4828 static_cast<ARMOperand*>(Operands[3])->getReg() !=
4829 static_cast<ARMOperand*>(Operands[4])->getReg())))
4832 // Also check the 'mul' syntax variant that doesn't specify an explicit
4833 // destination register.
4834 if (isThumbTwo() && Mnemonic == "mul" && Operands.size() == 5 &&
4835 static_cast<ARMOperand*>(Operands[1])->getReg() == 0 &&
4836 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4837 static_cast<ARMOperand*>(Operands[4])->isReg() &&
4838 // If the registers aren't low regs or the cc_out operand is zero
4839 // outside of an IT block, we have to use the 32-bit encoding, so
4840 // remove the cc_out operand.
4841 (!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
4842 !isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()) ||
4848 // Register-register 'add/sub' for thumb does not have a cc_out operand
4849 // when it's an ADD/SUB SP, #imm. Be lenient on count since there's also
4850 // the "add/sub SP, SP, #imm" version. If the follow-up operands aren't
4851 // right, this will result in better diagnostics (which operand is off)
4853 if (isThumb() && (Mnemonic == "add" || Mnemonic == "sub") &&
4854 (Operands.size() == 5 || Operands.size() == 6) &&
4855 static_cast<ARMOperand*>(Operands[3])->isReg() &&
4856 static_cast<ARMOperand*>(Operands[3])->getReg() == ARM::SP &&
4857 static_cast<ARMOperand*>(Operands[1])->getReg() == 0)
4863 static bool isDataTypeToken(StringRef Tok) {
4864 return Tok == ".8" || Tok == ".16" || Tok == ".32" || Tok == ".64" ||
4865 Tok == ".i8" || Tok == ".i16" || Tok == ".i32" || Tok == ".i64" ||
4866 Tok == ".u8" || Tok == ".u16" || Tok == ".u32" || Tok == ".u64" ||
4867 Tok == ".s8" || Tok == ".s16" || Tok == ".s32" || Tok == ".s64" ||
4868 Tok == ".p8" || Tok == ".p16" || Tok == ".f32" || Tok == ".f64" ||
4869 Tok == ".f" || Tok == ".d";
4872 // FIXME: This bit should probably be handled via an explicit match class
4873 // in the .td files that matches the suffix instead of having it be
4874 // a literal string token the way it is now.
4875 static bool doesIgnoreDataTypeSuffix(StringRef Mnemonic, StringRef DT) {
4876 return Mnemonic.startswith("vldm") || Mnemonic.startswith("vstm");
4879 static void applyMnemonicAliases(StringRef &Mnemonic, unsigned Features);
4880 /// Parse an arm instruction mnemonic followed by its operands.
4881 bool ARMAsmParser::ParseInstruction(StringRef Name, SMLoc NameLoc,
4882 SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
4883 // Apply mnemonic aliases before doing anything else, as the destination
4884 // mnemnonic may include suffices and we want to handle them normally.
4885 // The generic tblgen'erated code does this later, at the start of
4886 // MatchInstructionImpl(), but that's too late for aliases that include
4887 // any sort of suffix.
4888 unsigned AvailableFeatures = getAvailableFeatures();
4889 applyMnemonicAliases(Name, AvailableFeatures);
4891 // First check for the ARM-specific .req directive.
4892 if (Parser.getTok().is(AsmToken::Identifier) &&
4893 Parser.getTok().getIdentifier() == ".req") {
4894 parseDirectiveReq(Name, NameLoc);
4895 // We always return 'error' for this, as we're done with this
4896 // statement and don't need to match the 'instruction."
4900 // Create the leading tokens for the mnemonic, split by '.' characters.
4901 size_t Start = 0, Next = Name.find('.');
4902 StringRef Mnemonic = Name.slice(Start, Next);
4904 // Split out the predication code and carry setting flag from the mnemonic.
4905 unsigned PredicationCode;
4906 unsigned ProcessorIMod;
4909 Mnemonic = splitMnemonic(Mnemonic, PredicationCode, CarrySetting,
4910 ProcessorIMod, ITMask);
4912 // In Thumb1, only the branch (B) instruction can be predicated.
4913 if (isThumbOne() && PredicationCode != ARMCC::AL && Mnemonic != "b") {
4914 Parser.EatToEndOfStatement();
4915 return Error(NameLoc, "conditional execution not supported in Thumb1");
4918 Operands.push_back(ARMOperand::CreateToken(Mnemonic, NameLoc));
4920 // Handle the IT instruction ITMask. Convert it to a bitmask. This
4921 // is the mask as it will be for the IT encoding if the conditional
4922 // encoding has a '1' as it's bit0 (i.e. 't' ==> '1'). In the case
4923 // where the conditional bit0 is zero, the instruction post-processing
4924 // will adjust the mask accordingly.
4925 if (Mnemonic == "it") {
4926 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + 2);
4927 if (ITMask.size() > 3) {
4928 Parser.EatToEndOfStatement();
4929 return Error(Loc, "too many conditions on IT instruction");
4932 for (unsigned i = ITMask.size(); i != 0; --i) {
4933 char pos = ITMask[i - 1];
4934 if (pos != 't' && pos != 'e') {
4935 Parser.EatToEndOfStatement();
4936 return Error(Loc, "illegal IT block condition mask '" + ITMask + "'");
4939 if (ITMask[i - 1] == 't')
4942 Operands.push_back(ARMOperand::CreateITMask(Mask, Loc));
4945 // FIXME: This is all a pretty gross hack. We should automatically handle
4946 // optional operands like this via tblgen.
4948 // Next, add the CCOut and ConditionCode operands, if needed.
4950 // For mnemonics which can ever incorporate a carry setting bit or predication
4951 // code, our matching model involves us always generating CCOut and
4952 // ConditionCode operands to match the mnemonic "as written" and then we let
4953 // the matcher deal with finding the right instruction or generating an
4954 // appropriate error.
4955 bool CanAcceptCarrySet, CanAcceptPredicationCode;
4956 getMnemonicAcceptInfo(Mnemonic, CanAcceptCarrySet, CanAcceptPredicationCode);
4958 // If we had a carry-set on an instruction that can't do that, issue an
4960 if (!CanAcceptCarrySet && CarrySetting) {
4961 Parser.EatToEndOfStatement();
4962 return Error(NameLoc, "instruction '" + Mnemonic +
4963 "' can not set flags, but 's' suffix specified");
4965 // If we had a predication code on an instruction that can't do that, issue an
4967 if (!CanAcceptPredicationCode && PredicationCode != ARMCC::AL) {
4968 Parser.EatToEndOfStatement();
4969 return Error(NameLoc, "instruction '" + Mnemonic +
4970 "' is not predicable, but condition code specified");
4973 // Add the carry setting operand, if necessary.
4974 if (CanAcceptCarrySet) {
4975 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size());
4976 Operands.push_back(ARMOperand::CreateCCOut(CarrySetting ? ARM::CPSR : 0,
4980 // Add the predication code operand, if necessary.
4981 if (CanAcceptPredicationCode) {
4982 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Mnemonic.size() +
4984 Operands.push_back(ARMOperand::CreateCondCode(
4985 ARMCC::CondCodes(PredicationCode), Loc));
4988 // Add the processor imod operand, if necessary.
4989 if (ProcessorIMod) {
4990 Operands.push_back(ARMOperand::CreateImm(
4991 MCConstantExpr::Create(ProcessorIMod, getContext()),
4995 // Add the remaining tokens in the mnemonic.
4996 while (Next != StringRef::npos) {
4998 Next = Name.find('.', Start + 1);
4999 StringRef ExtraToken = Name.slice(Start, Next);
5001 // Some NEON instructions have an optional datatype suffix that is
5002 // completely ignored. Check for that.
5003 if (isDataTypeToken(ExtraToken) &&
5004 doesIgnoreDataTypeSuffix(Mnemonic, ExtraToken))
5007 if (ExtraToken != ".n") {
5008 SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
5009 Operands.push_back(ARMOperand::CreateToken(ExtraToken, Loc));
5013 // Read the remaining operands.
5014 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5015 // Read the first operand.
5016 if (parseOperand(Operands, Mnemonic)) {
5017 Parser.EatToEndOfStatement();
5021 while (getLexer().is(AsmToken::Comma)) {
5022 Parser.Lex(); // Eat the comma.
5024 // Parse and remember the operand.
5025 if (parseOperand(Operands, Mnemonic)) {
5026 Parser.EatToEndOfStatement();
5032 if (getLexer().isNot(AsmToken::EndOfStatement)) {
5033 SMLoc Loc = getLexer().getLoc();
5034 Parser.EatToEndOfStatement();
5035 return Error(Loc, "unexpected token in argument list");
5038 Parser.Lex(); // Consume the EndOfStatement
5040 // Some instructions, mostly Thumb, have forms for the same mnemonic that
5041 // do and don't have a cc_out optional-def operand. With some spot-checks
5042 // of the operand list, we can figure out which variant we're trying to
5043 // parse and adjust accordingly before actually matching. We shouldn't ever
5044 // try to remove a cc_out operand that was explicitly set on the the
5045 // mnemonic, of course (CarrySetting == true). Reason number #317 the
5046 // table driven matcher doesn't fit well with the ARM instruction set.
5047 if (!CarrySetting && shouldOmitCCOutOperand(Mnemonic, Operands)) {
5048 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5049 Operands.erase(Operands.begin() + 1);
5053 // ARM mode 'blx' need special handling, as the register operand version
5054 // is predicable, but the label operand version is not. So, we can't rely
5055 // on the Mnemonic based checking to correctly figure out when to put
5056 // a k_CondCode operand in the list. If we're trying to match the label
5057 // version, remove the k_CondCode operand here.
5058 if (!isThumb() && Mnemonic == "blx" && Operands.size() == 3 &&
5059 static_cast<ARMOperand*>(Operands[2])->isImm()) {
5060 ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
5061 Operands.erase(Operands.begin() + 1);
5065 // The vector-compare-to-zero instructions have a literal token "#0" at
5066 // the end that comes to here as an immediate operand. Convert it to a
5067 // token to play nicely with the matcher.
5068 if ((Mnemonic == "vceq" || Mnemonic == "vcge" || Mnemonic == "vcgt" ||
5069 Mnemonic == "vcle" || Mnemonic == "vclt") && Operands.size() == 6 &&
5070 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5071 ARMOperand *Op = static_cast<ARMOperand*>(Operands[5]);
5072 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5073 if (CE && CE->getValue() == 0) {
5074 Operands.erase(Operands.begin() + 5);
5075 Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
5079 // VCMP{E} does the same thing, but with a different operand count.
5080 if ((Mnemonic == "vcmp" || Mnemonic == "vcmpe") && Operands.size() == 5 &&
5081 static_cast<ARMOperand*>(Operands[4])->isImm()) {
5082 ARMOperand *Op = static_cast<ARMOperand*>(Operands[4]);
5083 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5084 if (CE && CE->getValue() == 0) {
5085 Operands.erase(Operands.begin() + 4);
5086 Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
5090 // Similarly, the Thumb1 "RSB" instruction has a literal "#0" on the
5091 // end. Convert it to a token here. Take care not to convert those
5092 // that should hit the Thumb2 encoding.
5093 if (Mnemonic == "rsb" && isThumb() && Operands.size() == 6 &&
5094 static_cast<ARMOperand*>(Operands[3])->isReg() &&
5095 static_cast<ARMOperand*>(Operands[4])->isReg() &&
5096 static_cast<ARMOperand*>(Operands[5])->isImm()) {
5097 ARMOperand *Op = static_cast<ARMOperand*>(Operands[5]);
5098 const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
5099 if (CE && CE->getValue() == 0 &&
5101 // The cc_out operand matches the IT block.
5102 ((inITBlock() != CarrySetting) &&
5103 // Neither register operand is a high register.
5104 (isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) &&
5105 isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg()))))){
5106 Operands.erase(Operands.begin() + 5);
5107 Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
5115 // Validate context-sensitive operand constraints.
5117 // return 'true' if register list contains non-low GPR registers,
5118 // 'false' otherwise. If Reg is in the register list or is HiReg, set
5119 // 'containsReg' to true.
5120 static bool checkLowRegisterList(MCInst Inst, unsigned OpNo, unsigned Reg,
5121 unsigned HiReg, bool &containsReg) {
5122 containsReg = false;
5123 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5124 unsigned OpReg = Inst.getOperand(i).getReg();
5127 // Anything other than a low register isn't legal here.
5128 if (!isARMLowRegister(OpReg) && (!HiReg || OpReg != HiReg))
5134 // Check if the specified regisgter is in the register list of the inst,
5135 // starting at the indicated operand number.
5136 static bool listContainsReg(MCInst &Inst, unsigned OpNo, unsigned Reg) {
5137 for (unsigned i = OpNo; i < Inst.getNumOperands(); ++i) {
5138 unsigned OpReg = Inst.getOperand(i).getReg();
5145 // FIXME: We would really prefer to have MCInstrInfo (the wrapper around
5146 // the ARMInsts array) instead. Getting that here requires awkward
5147 // API changes, though. Better way?
5149 extern const MCInstrDesc ARMInsts[];
5151 static const MCInstrDesc &getInstDesc(unsigned Opcode) {
5152 return ARMInsts[Opcode];
5155 // FIXME: We would really like to be able to tablegen'erate this.
5157 validateInstruction(MCInst &Inst,
5158 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5159 const MCInstrDesc &MCID = getInstDesc(Inst.getOpcode());
5160 SMLoc Loc = Operands[0]->getStartLoc();
5161 // Check the IT block state first.
5162 // NOTE: BKPT instruction has the interesting property of being
5163 // allowed in IT blocks, but not being predicable. It just always
5165 if (inITBlock() && Inst.getOpcode() != ARM::tBKPT &&
5166 Inst.getOpcode() != ARM::BKPT) {
5168 if (ITState.FirstCond)
5169 ITState.FirstCond = false;
5171 bit = (ITState.Mask >> (5 - ITState.CurPosition)) & 1;
5172 // The instruction must be predicable.
5173 if (!MCID.isPredicable())
5174 return Error(Loc, "instructions in IT block must be predicable");
5175 unsigned Cond = Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm();
5176 unsigned ITCond = bit ? ITState.Cond :
5177 ARMCC::getOppositeCondition(ITState.Cond);
5178 if (Cond != ITCond) {
5179 // Find the condition code Operand to get its SMLoc information.
5181 for (unsigned i = 1; i < Operands.size(); ++i)
5182 if (static_cast<ARMOperand*>(Operands[i])->isCondCode())
5183 CondLoc = Operands[i]->getStartLoc();
5184 return Error(CondLoc, "incorrect condition in IT block; got '" +
5185 StringRef(ARMCondCodeToString(ARMCC::CondCodes(Cond))) +
5186 "', but expected '" +
5187 ARMCondCodeToString(ARMCC::CondCodes(ITCond)) + "'");
5189 // Check for non-'al' condition codes outside of the IT block.
5190 } else if (isThumbTwo() && MCID.isPredicable() &&
5191 Inst.getOperand(MCID.findFirstPredOperandIdx()).getImm() !=
5192 ARMCC::AL && Inst.getOpcode() != ARM::tB &&
5193 Inst.getOpcode() != ARM::t2B)
5194 return Error(Loc, "predicated instructions must be in IT block");
5196 switch (Inst.getOpcode()) {
5199 case ARM::LDRD_POST:
5201 // Rt2 must be Rt + 1.
5202 unsigned Rt = getARMRegisterNumbering(Inst.getOperand(0).getReg());
5203 unsigned Rt2 = getARMRegisterNumbering(Inst.getOperand(1).getReg());
5205 return Error(Operands[3]->getStartLoc(),
5206 "destination operands must be sequential");
5210 // Rt2 must be Rt + 1.
5211 unsigned Rt = getARMRegisterNumbering(Inst.getOperand(0).getReg());
5212 unsigned Rt2 = getARMRegisterNumbering(Inst.getOperand(1).getReg());
5214 return Error(Operands[3]->getStartLoc(),
5215 "source operands must be sequential");
5219 case ARM::STRD_POST:
5221 // Rt2 must be Rt + 1.
5222 unsigned Rt = getARMRegisterNumbering(Inst.getOperand(1).getReg());
5223 unsigned Rt2 = getARMRegisterNumbering(Inst.getOperand(2).getReg());
5225 return Error(Operands[3]->getStartLoc(),
5226 "source operands must be sequential");
5231 // width must be in range [1, 32-lsb]
5232 unsigned lsb = Inst.getOperand(2).getImm();
5233 unsigned widthm1 = Inst.getOperand(3).getImm();
5234 if (widthm1 >= 32 - lsb)
5235 return Error(Operands[5]->getStartLoc(),
5236 "bitfield width must be in range [1,32-lsb]");
5240 // If we're parsing Thumb2, the .w variant is available and handles
5241 // most cases that are normally illegal for a Thumb1 LDM
5242 // instruction. We'll make the transformation in processInstruction()
5245 // Thumb LDM instructions are writeback iff the base register is not
5246 // in the register list.
5247 unsigned Rn = Inst.getOperand(0).getReg();
5248 bool hasWritebackToken =
5249 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
5250 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
5251 bool listContainsBase;
5252 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) && !isThumbTwo())
5253 return Error(Operands[3 + hasWritebackToken]->getStartLoc(),
5254 "registers must be in range r0-r7");
5255 // If we should have writeback, then there should be a '!' token.
5256 if (!listContainsBase && !hasWritebackToken && !isThumbTwo())
5257 return Error(Operands[2]->getStartLoc(),
5258 "writeback operator '!' expected");
5259 // If we should not have writeback, there must not be a '!'. This is
5260 // true even for the 32-bit wide encodings.
5261 if (listContainsBase && hasWritebackToken)
5262 return Error(Operands[3]->getStartLoc(),
5263 "writeback operator '!' not allowed when base register "
5264 "in register list");
5268 case ARM::t2LDMIA_UPD: {
5269 if (listContainsReg(Inst, 3, Inst.getOperand(0).getReg()))
5270 return Error(Operands[4]->getStartLoc(),
5271 "writeback operator '!' not allowed when base register "
5272 "in register list");
5275 // Like for ldm/stm, push and pop have hi-reg handling version in Thumb2,
5276 // so only issue a diagnostic for thumb1. The instructions will be
5277 // switched to the t2 encodings in processInstruction() if necessary.
5279 bool listContainsBase;
5280 if (checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase) &&
5282 return Error(Operands[2]->getStartLoc(),
5283 "registers must be in range r0-r7 or pc");
5287 bool listContainsBase;
5288 if (checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase) &&
5290 return Error(Operands[2]->getStartLoc(),
5291 "registers must be in range r0-r7 or lr");
5294 case ARM::tSTMIA_UPD: {
5295 bool listContainsBase;
5296 if (checkLowRegisterList(Inst, 4, 0, 0, listContainsBase) && !isThumbTwo())
5297 return Error(Operands[4]->getStartLoc(),
5298 "registers must be in range r0-r7");
5306 static unsigned getRealVSTOpcode(unsigned Opc, unsigned &Spacing) {
5308 default: llvm_unreachable("unexpected opcode!");
5310 case ARM::VST1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5311 case ARM::VST1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5312 case ARM::VST1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5313 case ARM::VST1LNdWB_register_Asm_8: Spacing = 1; return ARM::VST1LNd8_UPD;
5314 case ARM::VST1LNdWB_register_Asm_16: Spacing = 1; return ARM::VST1LNd16_UPD;
5315 case ARM::VST1LNdWB_register_Asm_32: Spacing = 1; return ARM::VST1LNd32_UPD;
5316 case ARM::VST1LNdAsm_8: Spacing = 1; return ARM::VST1LNd8;
5317 case ARM::VST1LNdAsm_16: Spacing = 1; return ARM::VST1LNd16;
5318 case ARM::VST1LNdAsm_32: Spacing = 1; return ARM::VST1LNd32;
5321 case ARM::VST2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5322 case ARM::VST2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5323 case ARM::VST2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5324 case ARM::VST2LNqWB_fixed_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5325 case ARM::VST2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5327 case ARM::VST2LNdWB_register_Asm_8: Spacing = 1; return ARM::VST2LNd8_UPD;
5328 case ARM::VST2LNdWB_register_Asm_16: Spacing = 1; return ARM::VST2LNd16_UPD;
5329 case ARM::VST2LNdWB_register_Asm_32: Spacing = 1; return ARM::VST2LNd32_UPD;
5330 case ARM::VST2LNqWB_register_Asm_16: Spacing = 2; return ARM::VST2LNq16_UPD;
5331 case ARM::VST2LNqWB_register_Asm_32: Spacing = 2; return ARM::VST2LNq32_UPD;
5333 case ARM::VST2LNdAsm_8: Spacing = 1; return ARM::VST2LNd8;
5334 case ARM::VST2LNdAsm_16: Spacing = 1; return ARM::VST2LNd16;
5335 case ARM::VST2LNdAsm_32: Spacing = 1; return ARM::VST2LNd32;
5336 case ARM::VST2LNqAsm_16: Spacing = 2; return ARM::VST2LNq16;
5337 case ARM::VST2LNqAsm_32: Spacing = 2; return ARM::VST2LNq32;
5340 case ARM::VST3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5341 case ARM::VST3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5342 case ARM::VST3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5343 case ARM::VST3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST3LNq16_UPD;
5344 case ARM::VST3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5345 case ARM::VST3LNdWB_register_Asm_8: Spacing = 1; return ARM::VST3LNd8_UPD;
5346 case ARM::VST3LNdWB_register_Asm_16: Spacing = 1; return ARM::VST3LNd16_UPD;
5347 case ARM::VST3LNdWB_register_Asm_32: Spacing = 1; return ARM::VST3LNd32_UPD;
5348 case ARM::VST3LNqWB_register_Asm_16: Spacing = 2; return ARM::VST3LNq16_UPD;
5349 case ARM::VST3LNqWB_register_Asm_32: Spacing = 2; return ARM::VST3LNq32_UPD;
5350 case ARM::VST3LNdAsm_8: Spacing = 1; return ARM::VST3LNd8;
5351 case ARM::VST3LNdAsm_16: Spacing = 1; return ARM::VST3LNd16;
5352 case ARM::VST3LNdAsm_32: Spacing = 1; return ARM::VST3LNd32;
5353 case ARM::VST3LNqAsm_16: Spacing = 2; return ARM::VST3LNq16;
5354 case ARM::VST3LNqAsm_32: Spacing = 2; return ARM::VST3LNq32;
5357 case ARM::VST3dWB_fixed_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5358 case ARM::VST3dWB_fixed_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5359 case ARM::VST3dWB_fixed_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5360 case ARM::VST3qWB_fixed_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5361 case ARM::VST3qWB_fixed_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5362 case ARM::VST3qWB_fixed_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5363 case ARM::VST3dWB_register_Asm_8: Spacing = 1; return ARM::VST3d8_UPD;
5364 case ARM::VST3dWB_register_Asm_16: Spacing = 1; return ARM::VST3d16_UPD;
5365 case ARM::VST3dWB_register_Asm_32: Spacing = 1; return ARM::VST3d32_UPD;
5366 case ARM::VST3qWB_register_Asm_8: Spacing = 2; return ARM::VST3q8_UPD;
5367 case ARM::VST3qWB_register_Asm_16: Spacing = 2; return ARM::VST3q16_UPD;
5368 case ARM::VST3qWB_register_Asm_32: Spacing = 2; return ARM::VST3q32_UPD;
5369 case ARM::VST3dAsm_8: Spacing = 1; return ARM::VST3d8;
5370 case ARM::VST3dAsm_16: Spacing = 1; return ARM::VST3d16;
5371 case ARM::VST3dAsm_32: Spacing = 1; return ARM::VST3d32;
5372 case ARM::VST3qAsm_8: Spacing = 2; return ARM::VST3q8;
5373 case ARM::VST3qAsm_16: Spacing = 2; return ARM::VST3q16;
5374 case ARM::VST3qAsm_32: Spacing = 2; return ARM::VST3q32;
5377 case ARM::VST4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5378 case ARM::VST4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5379 case ARM::VST4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5380 case ARM::VST4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VST4LNq16_UPD;
5381 case ARM::VST4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5382 case ARM::VST4LNdWB_register_Asm_8: Spacing = 1; return ARM::VST4LNd8_UPD;
5383 case ARM::VST4LNdWB_register_Asm_16: Spacing = 1; return ARM::VST4LNd16_UPD;
5384 case ARM::VST4LNdWB_register_Asm_32: Spacing = 1; return ARM::VST4LNd32_UPD;
5385 case ARM::VST4LNqWB_register_Asm_16: Spacing = 2; return ARM::VST4LNq16_UPD;
5386 case ARM::VST4LNqWB_register_Asm_32: Spacing = 2; return ARM::VST4LNq32_UPD;
5387 case ARM::VST4LNdAsm_8: Spacing = 1; return ARM::VST4LNd8;
5388 case ARM::VST4LNdAsm_16: Spacing = 1; return ARM::VST4LNd16;
5389 case ARM::VST4LNdAsm_32: Spacing = 1; return ARM::VST4LNd32;
5390 case ARM::VST4LNqAsm_16: Spacing = 2; return ARM::VST4LNq16;
5391 case ARM::VST4LNqAsm_32: Spacing = 2; return ARM::VST4LNq32;
5394 case ARM::VST4dWB_fixed_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5395 case ARM::VST4dWB_fixed_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5396 case ARM::VST4dWB_fixed_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5397 case ARM::VST4qWB_fixed_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5398 case ARM::VST4qWB_fixed_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5399 case ARM::VST4qWB_fixed_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5400 case ARM::VST4dWB_register_Asm_8: Spacing = 1; return ARM::VST4d8_UPD;
5401 case ARM::VST4dWB_register_Asm_16: Spacing = 1; return ARM::VST4d16_UPD;
5402 case ARM::VST4dWB_register_Asm_32: Spacing = 1; return ARM::VST4d32_UPD;
5403 case ARM::VST4qWB_register_Asm_8: Spacing = 2; return ARM::VST4q8_UPD;
5404 case ARM::VST4qWB_register_Asm_16: Spacing = 2; return ARM::VST4q16_UPD;
5405 case ARM::VST4qWB_register_Asm_32: Spacing = 2; return ARM::VST4q32_UPD;
5406 case ARM::VST4dAsm_8: Spacing = 1; return ARM::VST4d8;
5407 case ARM::VST4dAsm_16: Spacing = 1; return ARM::VST4d16;
5408 case ARM::VST4dAsm_32: Spacing = 1; return ARM::VST4d32;
5409 case ARM::VST4qAsm_8: Spacing = 2; return ARM::VST4q8;
5410 case ARM::VST4qAsm_16: Spacing = 2; return ARM::VST4q16;
5411 case ARM::VST4qAsm_32: Spacing = 2; return ARM::VST4q32;
5415 static unsigned getRealVLDOpcode(unsigned Opc, unsigned &Spacing) {
5417 default: llvm_unreachable("unexpected opcode!");
5419 case ARM::VLD1LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5420 case ARM::VLD1LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5421 case ARM::VLD1LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5422 case ARM::VLD1LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD1LNd8_UPD;
5423 case ARM::VLD1LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD1LNd16_UPD;
5424 case ARM::VLD1LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD1LNd32_UPD;
5425 case ARM::VLD1LNdAsm_8: Spacing = 1; return ARM::VLD1LNd8;
5426 case ARM::VLD1LNdAsm_16: Spacing = 1; return ARM::VLD1LNd16;
5427 case ARM::VLD1LNdAsm_32: Spacing = 1; return ARM::VLD1LNd32;
5430 case ARM::VLD2LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5431 case ARM::VLD2LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5432 case ARM::VLD2LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5433 case ARM::VLD2LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD2LNq16_UPD;
5434 case ARM::VLD2LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5435 case ARM::VLD2LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD2LNd8_UPD;
5436 case ARM::VLD2LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD2LNd16_UPD;
5437 case ARM::VLD2LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD2LNd32_UPD;
5438 case ARM::VLD2LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD2LNq16_UPD;
5439 case ARM::VLD2LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD2LNq32_UPD;
5440 case ARM::VLD2LNdAsm_8: Spacing = 1; return ARM::VLD2LNd8;
5441 case ARM::VLD2LNdAsm_16: Spacing = 1; return ARM::VLD2LNd16;
5442 case ARM::VLD2LNdAsm_32: Spacing = 1; return ARM::VLD2LNd32;
5443 case ARM::VLD2LNqAsm_16: Spacing = 2; return ARM::VLD2LNq16;
5444 case ARM::VLD2LNqAsm_32: Spacing = 2; return ARM::VLD2LNq32;
5447 case ARM::VLD3DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5448 case ARM::VLD3DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5449 case ARM::VLD3DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5450 case ARM::VLD3DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3DUPq8_UPD;
5451 case ARM::VLD3DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3DUPq16_UPD;
5452 case ARM::VLD3DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5453 case ARM::VLD3DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD3DUPd8_UPD;
5454 case ARM::VLD3DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD3DUPd16_UPD;
5455 case ARM::VLD3DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD3DUPd32_UPD;
5456 case ARM::VLD3DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD3DUPq8_UPD;
5457 case ARM::VLD3DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD3DUPq16_UPD;
5458 case ARM::VLD3DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD3DUPq32_UPD;
5459 case ARM::VLD3DUPdAsm_8: Spacing = 1; return ARM::VLD3DUPd8;
5460 case ARM::VLD3DUPdAsm_16: Spacing = 1; return ARM::VLD3DUPd16;
5461 case ARM::VLD3DUPdAsm_32: Spacing = 1; return ARM::VLD3DUPd32;
5462 case ARM::VLD3DUPqAsm_8: Spacing = 2; return ARM::VLD3DUPq8;
5463 case ARM::VLD3DUPqAsm_16: Spacing = 2; return ARM::VLD3DUPq16;
5464 case ARM::VLD3DUPqAsm_32: Spacing = 2; return ARM::VLD3DUPq32;
5467 case ARM::VLD3LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5468 case ARM::VLD3LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5469 case ARM::VLD3LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5470 case ARM::VLD3LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3LNq16_UPD;
5471 case ARM::VLD3LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5472 case ARM::VLD3LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD3LNd8_UPD;
5473 case ARM::VLD3LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD3LNd16_UPD;
5474 case ARM::VLD3LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD3LNd32_UPD;
5475 case ARM::VLD3LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD3LNq16_UPD;
5476 case ARM::VLD3LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD3LNq32_UPD;
5477 case ARM::VLD3LNdAsm_8: Spacing = 1; return ARM::VLD3LNd8;
5478 case ARM::VLD3LNdAsm_16: Spacing = 1; return ARM::VLD3LNd16;
5479 case ARM::VLD3LNdAsm_32: Spacing = 1; return ARM::VLD3LNd32;
5480 case ARM::VLD3LNqAsm_16: Spacing = 2; return ARM::VLD3LNq16;
5481 case ARM::VLD3LNqAsm_32: Spacing = 2; return ARM::VLD3LNq32;
5484 case ARM::VLD3dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5485 case ARM::VLD3dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5486 case ARM::VLD3dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5487 case ARM::VLD3qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5488 case ARM::VLD3qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5489 case ARM::VLD3qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5490 case ARM::VLD3dWB_register_Asm_8: Spacing = 1; return ARM::VLD3d8_UPD;
5491 case ARM::VLD3dWB_register_Asm_16: Spacing = 1; return ARM::VLD3d16_UPD;
5492 case ARM::VLD3dWB_register_Asm_32: Spacing = 1; return ARM::VLD3d32_UPD;
5493 case ARM::VLD3qWB_register_Asm_8: Spacing = 2; return ARM::VLD3q8_UPD;
5494 case ARM::VLD3qWB_register_Asm_16: Spacing = 2; return ARM::VLD3q16_UPD;
5495 case ARM::VLD3qWB_register_Asm_32: Spacing = 2; return ARM::VLD3q32_UPD;
5496 case ARM::VLD3dAsm_8: Spacing = 1; return ARM::VLD3d8;
5497 case ARM::VLD3dAsm_16: Spacing = 1; return ARM::VLD3d16;
5498 case ARM::VLD3dAsm_32: Spacing = 1; return ARM::VLD3d32;
5499 case ARM::VLD3qAsm_8: Spacing = 2; return ARM::VLD3q8;
5500 case ARM::VLD3qAsm_16: Spacing = 2; return ARM::VLD3q16;
5501 case ARM::VLD3qAsm_32: Spacing = 2; return ARM::VLD3q32;
5504 case ARM::VLD4LNdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5505 case ARM::VLD4LNdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5506 case ARM::VLD4LNdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5507 case ARM::VLD4LNqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4LNq16_UPD;
5508 case ARM::VLD4LNqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5509 case ARM::VLD4LNdWB_register_Asm_8: Spacing = 1; return ARM::VLD4LNd8_UPD;
5510 case ARM::VLD4LNdWB_register_Asm_16: Spacing = 1; return ARM::VLD4LNd16_UPD;
5511 case ARM::VLD4LNdWB_register_Asm_32: Spacing = 1; return ARM::VLD4LNd32_UPD;
5512 case ARM::VLD4LNqWB_register_Asm_16: Spacing = 2; return ARM::VLD4LNq16_UPD;
5513 case ARM::VLD4LNqWB_register_Asm_32: Spacing = 2; return ARM::VLD4LNq32_UPD;
5514 case ARM::VLD4LNdAsm_8: Spacing = 1; return ARM::VLD4LNd8;
5515 case ARM::VLD4LNdAsm_16: Spacing = 1; return ARM::VLD4LNd16;
5516 case ARM::VLD4LNdAsm_32: Spacing = 1; return ARM::VLD4LNd32;
5517 case ARM::VLD4LNqAsm_16: Spacing = 2; return ARM::VLD4LNq16;
5518 case ARM::VLD4LNqAsm_32: Spacing = 2; return ARM::VLD4LNq32;
5521 case ARM::VLD4DUPdWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5522 case ARM::VLD4DUPdWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5523 case ARM::VLD4DUPdWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5524 case ARM::VLD4DUPqWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4DUPq8_UPD;
5525 case ARM::VLD4DUPqWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4DUPq16_UPD;
5526 case ARM::VLD4DUPqWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5527 case ARM::VLD4DUPdWB_register_Asm_8: Spacing = 1; return ARM::VLD4DUPd8_UPD;
5528 case ARM::VLD4DUPdWB_register_Asm_16: Spacing = 1; return ARM::VLD4DUPd16_UPD;
5529 case ARM::VLD4DUPdWB_register_Asm_32: Spacing = 1; return ARM::VLD4DUPd32_UPD;
5530 case ARM::VLD4DUPqWB_register_Asm_8: Spacing = 2; return ARM::VLD4DUPq8_UPD;
5531 case ARM::VLD4DUPqWB_register_Asm_16: Spacing = 2; return ARM::VLD4DUPq16_UPD;
5532 case ARM::VLD4DUPqWB_register_Asm_32: Spacing = 2; return ARM::VLD4DUPq32_UPD;
5533 case ARM::VLD4DUPdAsm_8: Spacing = 1; return ARM::VLD4DUPd8;
5534 case ARM::VLD4DUPdAsm_16: Spacing = 1; return ARM::VLD4DUPd16;
5535 case ARM::VLD4DUPdAsm_32: Spacing = 1; return ARM::VLD4DUPd32;
5536 case ARM::VLD4DUPqAsm_8: Spacing = 2; return ARM::VLD4DUPq8;
5537 case ARM::VLD4DUPqAsm_16: Spacing = 2; return ARM::VLD4DUPq16;
5538 case ARM::VLD4DUPqAsm_32: Spacing = 2; return ARM::VLD4DUPq32;
5541 case ARM::VLD4dWB_fixed_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5542 case ARM::VLD4dWB_fixed_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5543 case ARM::VLD4dWB_fixed_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5544 case ARM::VLD4qWB_fixed_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5545 case ARM::VLD4qWB_fixed_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5546 case ARM::VLD4qWB_fixed_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5547 case ARM::VLD4dWB_register_Asm_8: Spacing = 1; return ARM::VLD4d8_UPD;
5548 case ARM::VLD4dWB_register_Asm_16: Spacing = 1; return ARM::VLD4d16_UPD;
5549 case ARM::VLD4dWB_register_Asm_32: Spacing = 1; return ARM::VLD4d32_UPD;
5550 case ARM::VLD4qWB_register_Asm_8: Spacing = 2; return ARM::VLD4q8_UPD;
5551 case ARM::VLD4qWB_register_Asm_16: Spacing = 2; return ARM::VLD4q16_UPD;
5552 case ARM::VLD4qWB_register_Asm_32: Spacing = 2; return ARM::VLD4q32_UPD;
5553 case ARM::VLD4dAsm_8: Spacing = 1; return ARM::VLD4d8;
5554 case ARM::VLD4dAsm_16: Spacing = 1; return ARM::VLD4d16;
5555 case ARM::VLD4dAsm_32: Spacing = 1; return ARM::VLD4d32;
5556 case ARM::VLD4qAsm_8: Spacing = 2; return ARM::VLD4q8;
5557 case ARM::VLD4qAsm_16: Spacing = 2; return ARM::VLD4q16;
5558 case ARM::VLD4qAsm_32: Spacing = 2; return ARM::VLD4q32;
5563 processInstruction(MCInst &Inst,
5564 const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
5565 switch (Inst.getOpcode()) {
5566 // Aliases for alternate PC+imm syntax of LDR instructions.
5567 case ARM::t2LDRpcrel:
5568 Inst.setOpcode(ARM::t2LDRpci);
5570 case ARM::t2LDRBpcrel:
5571 Inst.setOpcode(ARM::t2LDRBpci);
5573 case ARM::t2LDRHpcrel:
5574 Inst.setOpcode(ARM::t2LDRHpci);
5576 case ARM::t2LDRSBpcrel:
5577 Inst.setOpcode(ARM::t2LDRSBpci);
5579 case ARM::t2LDRSHpcrel:
5580 Inst.setOpcode(ARM::t2LDRSHpci);
5582 // Handle NEON VST complex aliases.
5583 case ARM::VST1LNdWB_register_Asm_8:
5584 case ARM::VST1LNdWB_register_Asm_16:
5585 case ARM::VST1LNdWB_register_Asm_32: {
5587 // Shuffle the operands around so the lane index operand is in the
5590 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5591 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5592 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5593 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5594 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5595 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5596 TmpInst.addOperand(Inst.getOperand(1)); // lane
5597 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5598 TmpInst.addOperand(Inst.getOperand(6));
5603 case ARM::VST2LNdWB_register_Asm_8:
5604 case ARM::VST2LNdWB_register_Asm_16:
5605 case ARM::VST2LNdWB_register_Asm_32:
5606 case ARM::VST2LNqWB_register_Asm_16:
5607 case ARM::VST2LNqWB_register_Asm_32: {
5609 // Shuffle the operands around so the lane index operand is in the
5612 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5613 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5614 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5615 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5616 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5617 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5618 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5620 TmpInst.addOperand(Inst.getOperand(1)); // lane
5621 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5622 TmpInst.addOperand(Inst.getOperand(6));
5627 case ARM::VST3LNdWB_register_Asm_8:
5628 case ARM::VST3LNdWB_register_Asm_16:
5629 case ARM::VST3LNdWB_register_Asm_32:
5630 case ARM::VST3LNqWB_register_Asm_16:
5631 case ARM::VST3LNqWB_register_Asm_32: {
5633 // Shuffle the operands around so the lane index operand is in the
5636 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5637 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5638 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5639 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5640 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5641 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5642 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5644 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5646 TmpInst.addOperand(Inst.getOperand(1)); // lane
5647 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5648 TmpInst.addOperand(Inst.getOperand(6));
5653 case ARM::VST4LNdWB_register_Asm_8:
5654 case ARM::VST4LNdWB_register_Asm_16:
5655 case ARM::VST4LNdWB_register_Asm_32:
5656 case ARM::VST4LNqWB_register_Asm_16:
5657 case ARM::VST4LNqWB_register_Asm_32: {
5659 // Shuffle the operands around so the lane index operand is in the
5662 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5663 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5664 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5665 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5666 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5667 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5668 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5670 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5672 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5674 TmpInst.addOperand(Inst.getOperand(1)); // lane
5675 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5676 TmpInst.addOperand(Inst.getOperand(6));
5681 case ARM::VST1LNdWB_fixed_Asm_8:
5682 case ARM::VST1LNdWB_fixed_Asm_16:
5683 case ARM::VST1LNdWB_fixed_Asm_32: {
5685 // Shuffle the operands around so the lane index operand is in the
5688 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5689 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5690 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5691 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5692 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5693 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5694 TmpInst.addOperand(Inst.getOperand(1)); // lane
5695 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5696 TmpInst.addOperand(Inst.getOperand(5));
5701 case ARM::VST2LNdWB_fixed_Asm_8:
5702 case ARM::VST2LNdWB_fixed_Asm_16:
5703 case ARM::VST2LNdWB_fixed_Asm_32:
5704 case ARM::VST2LNqWB_fixed_Asm_16:
5705 case ARM::VST2LNqWB_fixed_Asm_32: {
5707 // Shuffle the operands around so the lane index operand is in the
5710 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5711 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5712 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5713 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5714 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5715 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5716 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5718 TmpInst.addOperand(Inst.getOperand(1)); // lane
5719 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5720 TmpInst.addOperand(Inst.getOperand(5));
5725 case ARM::VST3LNdWB_fixed_Asm_8:
5726 case ARM::VST3LNdWB_fixed_Asm_16:
5727 case ARM::VST3LNdWB_fixed_Asm_32:
5728 case ARM::VST3LNqWB_fixed_Asm_16:
5729 case ARM::VST3LNqWB_fixed_Asm_32: {
5731 // Shuffle the operands around so the lane index operand is in the
5734 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5735 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5736 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5737 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5738 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5739 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5740 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5742 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5744 TmpInst.addOperand(Inst.getOperand(1)); // lane
5745 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5746 TmpInst.addOperand(Inst.getOperand(5));
5751 case ARM::VST4LNdWB_fixed_Asm_8:
5752 case ARM::VST4LNdWB_fixed_Asm_16:
5753 case ARM::VST4LNdWB_fixed_Asm_32:
5754 case ARM::VST4LNqWB_fixed_Asm_16:
5755 case ARM::VST4LNqWB_fixed_Asm_32: {
5757 // Shuffle the operands around so the lane index operand is in the
5760 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5761 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5762 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5763 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5764 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5765 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5766 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5768 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5770 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5772 TmpInst.addOperand(Inst.getOperand(1)); // lane
5773 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5774 TmpInst.addOperand(Inst.getOperand(5));
5779 case ARM::VST1LNdAsm_8:
5780 case ARM::VST1LNdAsm_16:
5781 case ARM::VST1LNdAsm_32: {
5783 // Shuffle the operands around so the lane index operand is in the
5786 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5787 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5788 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5789 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5790 TmpInst.addOperand(Inst.getOperand(1)); // lane
5791 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5792 TmpInst.addOperand(Inst.getOperand(5));
5797 case ARM::VST2LNdAsm_8:
5798 case ARM::VST2LNdAsm_16:
5799 case ARM::VST2LNdAsm_32:
5800 case ARM::VST2LNqAsm_16:
5801 case ARM::VST2LNqAsm_32: {
5803 // Shuffle the operands around so the lane index operand is in the
5806 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5807 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5808 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5809 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5810 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5812 TmpInst.addOperand(Inst.getOperand(1)); // lane
5813 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5814 TmpInst.addOperand(Inst.getOperand(5));
5819 case ARM::VST3LNdAsm_8:
5820 case ARM::VST3LNdAsm_16:
5821 case ARM::VST3LNdAsm_32:
5822 case ARM::VST3LNqAsm_16:
5823 case ARM::VST3LNqAsm_32: {
5825 // Shuffle the operands around so the lane index operand is in the
5828 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5829 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5830 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5831 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5832 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5834 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5836 TmpInst.addOperand(Inst.getOperand(1)); // lane
5837 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5838 TmpInst.addOperand(Inst.getOperand(5));
5843 case ARM::VST4LNdAsm_8:
5844 case ARM::VST4LNdAsm_16:
5845 case ARM::VST4LNdAsm_32:
5846 case ARM::VST4LNqAsm_16:
5847 case ARM::VST4LNqAsm_32: {
5849 // Shuffle the operands around so the lane index operand is in the
5852 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
5853 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5854 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5855 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5856 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5858 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5860 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5862 TmpInst.addOperand(Inst.getOperand(1)); // lane
5863 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
5864 TmpInst.addOperand(Inst.getOperand(5));
5869 // Handle NEON VLD complex aliases.
5870 case ARM::VLD1LNdWB_register_Asm_8:
5871 case ARM::VLD1LNdWB_register_Asm_16:
5872 case ARM::VLD1LNdWB_register_Asm_32: {
5874 // Shuffle the operands around so the lane index operand is in the
5877 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5878 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5879 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5880 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5881 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5882 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5883 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5884 TmpInst.addOperand(Inst.getOperand(1)); // lane
5885 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5886 TmpInst.addOperand(Inst.getOperand(6));
5891 case ARM::VLD2LNdWB_register_Asm_8:
5892 case ARM::VLD2LNdWB_register_Asm_16:
5893 case ARM::VLD2LNdWB_register_Asm_32:
5894 case ARM::VLD2LNqWB_register_Asm_16:
5895 case ARM::VLD2LNqWB_register_Asm_32: {
5897 // Shuffle the operands around so the lane index operand is in the
5900 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5901 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5902 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5904 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5905 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5906 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5907 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5908 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5909 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5911 TmpInst.addOperand(Inst.getOperand(1)); // lane
5912 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5913 TmpInst.addOperand(Inst.getOperand(6));
5918 case ARM::VLD3LNdWB_register_Asm_8:
5919 case ARM::VLD3LNdWB_register_Asm_16:
5920 case ARM::VLD3LNdWB_register_Asm_32:
5921 case ARM::VLD3LNqWB_register_Asm_16:
5922 case ARM::VLD3LNqWB_register_Asm_32: {
5924 // Shuffle the operands around so the lane index operand is in the
5927 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5928 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5929 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5931 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5933 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5934 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5935 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5936 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5937 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5938 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5940 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5942 TmpInst.addOperand(Inst.getOperand(1)); // lane
5943 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5944 TmpInst.addOperand(Inst.getOperand(6));
5949 case ARM::VLD4LNdWB_register_Asm_8:
5950 case ARM::VLD4LNdWB_register_Asm_16:
5951 case ARM::VLD4LNdWB_register_Asm_32:
5952 case ARM::VLD4LNqWB_register_Asm_16:
5953 case ARM::VLD4LNqWB_register_Asm_32: {
5955 // Shuffle the operands around so the lane index operand is in the
5958 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5959 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5960 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5962 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5964 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5966 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5967 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5968 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5969 TmpInst.addOperand(Inst.getOperand(4)); // Rm
5970 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5971 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5973 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5975 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
5977 TmpInst.addOperand(Inst.getOperand(1)); // lane
5978 TmpInst.addOperand(Inst.getOperand(5)); // CondCode
5979 TmpInst.addOperand(Inst.getOperand(6));
5984 case ARM::VLD1LNdWB_fixed_Asm_8:
5985 case ARM::VLD1LNdWB_fixed_Asm_16:
5986 case ARM::VLD1LNdWB_fixed_Asm_32: {
5988 // Shuffle the operands around so the lane index operand is in the
5991 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
5992 TmpInst.addOperand(Inst.getOperand(0)); // Vd
5993 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
5994 TmpInst.addOperand(Inst.getOperand(2)); // Rn
5995 TmpInst.addOperand(Inst.getOperand(3)); // alignment
5996 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
5997 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
5998 TmpInst.addOperand(Inst.getOperand(1)); // lane
5999 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6000 TmpInst.addOperand(Inst.getOperand(5));
6005 case ARM::VLD2LNdWB_fixed_Asm_8:
6006 case ARM::VLD2LNdWB_fixed_Asm_16:
6007 case ARM::VLD2LNdWB_fixed_Asm_32:
6008 case ARM::VLD2LNqWB_fixed_Asm_16:
6009 case ARM::VLD2LNqWB_fixed_Asm_32: {
6011 // Shuffle the operands around so the lane index operand is in the
6014 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6015 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6016 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6018 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6019 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6020 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6021 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6022 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6023 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6025 TmpInst.addOperand(Inst.getOperand(1)); // lane
6026 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6027 TmpInst.addOperand(Inst.getOperand(5));
6032 case ARM::VLD3LNdWB_fixed_Asm_8:
6033 case ARM::VLD3LNdWB_fixed_Asm_16:
6034 case ARM::VLD3LNdWB_fixed_Asm_32:
6035 case ARM::VLD3LNqWB_fixed_Asm_16:
6036 case ARM::VLD3LNqWB_fixed_Asm_32: {
6038 // Shuffle the operands around so the lane index operand is in the
6041 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6042 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6043 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6045 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6047 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6048 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6049 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6050 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6051 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6052 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6054 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6056 TmpInst.addOperand(Inst.getOperand(1)); // lane
6057 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6058 TmpInst.addOperand(Inst.getOperand(5));
6063 case ARM::VLD4LNdWB_fixed_Asm_8:
6064 case ARM::VLD4LNdWB_fixed_Asm_16:
6065 case ARM::VLD4LNdWB_fixed_Asm_32:
6066 case ARM::VLD4LNqWB_fixed_Asm_16:
6067 case ARM::VLD4LNqWB_fixed_Asm_32: {
6069 // Shuffle the operands around so the lane index operand is in the
6072 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6073 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6074 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6076 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6078 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6080 TmpInst.addOperand(Inst.getOperand(2)); // Rn_wb
6081 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6082 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6083 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6084 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6085 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6087 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6089 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6091 TmpInst.addOperand(Inst.getOperand(1)); // lane
6092 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6093 TmpInst.addOperand(Inst.getOperand(5));
6098 case ARM::VLD1LNdAsm_8:
6099 case ARM::VLD1LNdAsm_16:
6100 case ARM::VLD1LNdAsm_32: {
6102 // Shuffle the operands around so the lane index operand is in the
6105 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6106 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6107 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6108 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6109 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6110 TmpInst.addOperand(Inst.getOperand(1)); // lane
6111 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6112 TmpInst.addOperand(Inst.getOperand(5));
6117 case ARM::VLD2LNdAsm_8:
6118 case ARM::VLD2LNdAsm_16:
6119 case ARM::VLD2LNdAsm_32:
6120 case ARM::VLD2LNqAsm_16:
6121 case ARM::VLD2LNqAsm_32: {
6123 // Shuffle the operands around so the lane index operand is in the
6126 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6127 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6128 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6130 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6131 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6132 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6133 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6135 TmpInst.addOperand(Inst.getOperand(1)); // lane
6136 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6137 TmpInst.addOperand(Inst.getOperand(5));
6142 case ARM::VLD3LNdAsm_8:
6143 case ARM::VLD3LNdAsm_16:
6144 case ARM::VLD3LNdAsm_32:
6145 case ARM::VLD3LNqAsm_16:
6146 case ARM::VLD3LNqAsm_32: {
6148 // Shuffle the operands around so the lane index operand is in the
6151 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6152 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6153 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6155 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6157 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6158 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6159 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6160 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6162 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6164 TmpInst.addOperand(Inst.getOperand(1)); // lane
6165 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6166 TmpInst.addOperand(Inst.getOperand(5));
6171 case ARM::VLD4LNdAsm_8:
6172 case ARM::VLD4LNdAsm_16:
6173 case ARM::VLD4LNdAsm_32:
6174 case ARM::VLD4LNqAsm_16:
6175 case ARM::VLD4LNqAsm_32: {
6177 // Shuffle the operands around so the lane index operand is in the
6180 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6181 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6182 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6184 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6186 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6188 TmpInst.addOperand(Inst.getOperand(2)); // Rn
6189 TmpInst.addOperand(Inst.getOperand(3)); // alignment
6190 TmpInst.addOperand(Inst.getOperand(0)); // Tied operand src (== Vd)
6191 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6193 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6195 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6197 TmpInst.addOperand(Inst.getOperand(1)); // lane
6198 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6199 TmpInst.addOperand(Inst.getOperand(5));
6204 // VLD3DUP single 3-element structure to all lanes instructions.
6205 case ARM::VLD3DUPdAsm_8:
6206 case ARM::VLD3DUPdAsm_16:
6207 case ARM::VLD3DUPdAsm_32:
6208 case ARM::VLD3DUPqAsm_8:
6209 case ARM::VLD3DUPqAsm_16:
6210 case ARM::VLD3DUPqAsm_32: {
6213 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6214 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6215 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6217 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6219 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6220 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6221 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6222 TmpInst.addOperand(Inst.getOperand(4));
6227 case ARM::VLD3DUPdWB_fixed_Asm_8:
6228 case ARM::VLD3DUPdWB_fixed_Asm_16:
6229 case ARM::VLD3DUPdWB_fixed_Asm_32:
6230 case ARM::VLD3DUPqWB_fixed_Asm_8:
6231 case ARM::VLD3DUPqWB_fixed_Asm_16:
6232 case ARM::VLD3DUPqWB_fixed_Asm_32: {
6235 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6236 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6237 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6239 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6241 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6242 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6243 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6244 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6245 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6246 TmpInst.addOperand(Inst.getOperand(4));
6251 case ARM::VLD3DUPdWB_register_Asm_8:
6252 case ARM::VLD3DUPdWB_register_Asm_16:
6253 case ARM::VLD3DUPdWB_register_Asm_32:
6254 case ARM::VLD3DUPqWB_register_Asm_8:
6255 case ARM::VLD3DUPqWB_register_Asm_16:
6256 case ARM::VLD3DUPqWB_register_Asm_32: {
6259 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6260 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6261 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6263 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6265 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6266 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6267 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6268 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6269 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6270 TmpInst.addOperand(Inst.getOperand(5));
6275 // VLD3 multiple 3-element structure instructions.
6276 case ARM::VLD3dAsm_8:
6277 case ARM::VLD3dAsm_16:
6278 case ARM::VLD3dAsm_32:
6279 case ARM::VLD3qAsm_8:
6280 case ARM::VLD3qAsm_16:
6281 case ARM::VLD3qAsm_32: {
6284 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6285 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6286 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6288 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6290 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6291 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6292 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6293 TmpInst.addOperand(Inst.getOperand(4));
6298 case ARM::VLD3dWB_fixed_Asm_8:
6299 case ARM::VLD3dWB_fixed_Asm_16:
6300 case ARM::VLD3dWB_fixed_Asm_32:
6301 case ARM::VLD3qWB_fixed_Asm_8:
6302 case ARM::VLD3qWB_fixed_Asm_16:
6303 case ARM::VLD3qWB_fixed_Asm_32: {
6306 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6307 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6308 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6310 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6312 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6313 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6314 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6315 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6316 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6317 TmpInst.addOperand(Inst.getOperand(4));
6322 case ARM::VLD3dWB_register_Asm_8:
6323 case ARM::VLD3dWB_register_Asm_16:
6324 case ARM::VLD3dWB_register_Asm_32:
6325 case ARM::VLD3qWB_register_Asm_8:
6326 case ARM::VLD3qWB_register_Asm_16:
6327 case ARM::VLD3qWB_register_Asm_32: {
6330 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6331 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6332 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6334 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6336 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6337 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6338 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6339 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6340 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6341 TmpInst.addOperand(Inst.getOperand(5));
6346 // VLD4DUP single 3-element structure to all lanes instructions.
6347 case ARM::VLD4DUPdAsm_8:
6348 case ARM::VLD4DUPdAsm_16:
6349 case ARM::VLD4DUPdAsm_32:
6350 case ARM::VLD4DUPqAsm_8:
6351 case ARM::VLD4DUPqAsm_16:
6352 case ARM::VLD4DUPqAsm_32: {
6355 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6356 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6357 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6359 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6361 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6363 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6364 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6365 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6366 TmpInst.addOperand(Inst.getOperand(4));
6371 case ARM::VLD4DUPdWB_fixed_Asm_8:
6372 case ARM::VLD4DUPdWB_fixed_Asm_16:
6373 case ARM::VLD4DUPdWB_fixed_Asm_32:
6374 case ARM::VLD4DUPqWB_fixed_Asm_8:
6375 case ARM::VLD4DUPqWB_fixed_Asm_16:
6376 case ARM::VLD4DUPqWB_fixed_Asm_32: {
6379 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6380 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6381 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6383 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6385 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6387 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6388 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6389 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6390 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6391 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6392 TmpInst.addOperand(Inst.getOperand(4));
6397 case ARM::VLD4DUPdWB_register_Asm_8:
6398 case ARM::VLD4DUPdWB_register_Asm_16:
6399 case ARM::VLD4DUPdWB_register_Asm_32:
6400 case ARM::VLD4DUPqWB_register_Asm_8:
6401 case ARM::VLD4DUPqWB_register_Asm_16:
6402 case ARM::VLD4DUPqWB_register_Asm_32: {
6405 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6406 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6407 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6409 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6411 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6413 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6414 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6415 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6416 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6417 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6418 TmpInst.addOperand(Inst.getOperand(5));
6423 // VLD4 multiple 4-element structure instructions.
6424 case ARM::VLD4dAsm_8:
6425 case ARM::VLD4dAsm_16:
6426 case ARM::VLD4dAsm_32:
6427 case ARM::VLD4qAsm_8:
6428 case ARM::VLD4qAsm_16:
6429 case ARM::VLD4qAsm_32: {
6432 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6433 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6434 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6436 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6438 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6440 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6441 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6442 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6443 TmpInst.addOperand(Inst.getOperand(4));
6448 case ARM::VLD4dWB_fixed_Asm_8:
6449 case ARM::VLD4dWB_fixed_Asm_16:
6450 case ARM::VLD4dWB_fixed_Asm_32:
6451 case ARM::VLD4qWB_fixed_Asm_8:
6452 case ARM::VLD4qWB_fixed_Asm_16:
6453 case ARM::VLD4qWB_fixed_Asm_32: {
6456 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6457 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6458 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6460 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6462 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6464 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6465 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6466 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6467 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6468 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6469 TmpInst.addOperand(Inst.getOperand(4));
6474 case ARM::VLD4dWB_register_Asm_8:
6475 case ARM::VLD4dWB_register_Asm_16:
6476 case ARM::VLD4dWB_register_Asm_32:
6477 case ARM::VLD4qWB_register_Asm_8:
6478 case ARM::VLD4qWB_register_Asm_16:
6479 case ARM::VLD4qWB_register_Asm_32: {
6482 TmpInst.setOpcode(getRealVLDOpcode(Inst.getOpcode(), Spacing));
6483 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6484 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6486 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6488 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6490 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6491 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6492 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6493 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6494 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6495 TmpInst.addOperand(Inst.getOperand(5));
6500 // VST3 multiple 3-element structure instructions.
6501 case ARM::VST3dAsm_8:
6502 case ARM::VST3dAsm_16:
6503 case ARM::VST3dAsm_32:
6504 case ARM::VST3qAsm_8:
6505 case ARM::VST3qAsm_16:
6506 case ARM::VST3qAsm_32: {
6509 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6510 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6511 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6512 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6513 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6515 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6517 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6518 TmpInst.addOperand(Inst.getOperand(4));
6523 case ARM::VST3dWB_fixed_Asm_8:
6524 case ARM::VST3dWB_fixed_Asm_16:
6525 case ARM::VST3dWB_fixed_Asm_32:
6526 case ARM::VST3qWB_fixed_Asm_8:
6527 case ARM::VST3qWB_fixed_Asm_16:
6528 case ARM::VST3qWB_fixed_Asm_32: {
6531 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6532 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6533 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6534 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6535 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6536 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6537 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6539 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6541 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6542 TmpInst.addOperand(Inst.getOperand(4));
6547 case ARM::VST3dWB_register_Asm_8:
6548 case ARM::VST3dWB_register_Asm_16:
6549 case ARM::VST3dWB_register_Asm_32:
6550 case ARM::VST3qWB_register_Asm_8:
6551 case ARM::VST3qWB_register_Asm_16:
6552 case ARM::VST3qWB_register_Asm_32: {
6555 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6556 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6557 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6558 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6559 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6560 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6561 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6563 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6565 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6566 TmpInst.addOperand(Inst.getOperand(5));
6571 // VST4 multiple 3-element structure instructions.
6572 case ARM::VST4dAsm_8:
6573 case ARM::VST4dAsm_16:
6574 case ARM::VST4dAsm_32:
6575 case ARM::VST4qAsm_8:
6576 case ARM::VST4qAsm_16:
6577 case ARM::VST4qAsm_32: {
6580 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6581 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6582 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6583 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6584 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6586 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6588 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6590 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6591 TmpInst.addOperand(Inst.getOperand(4));
6596 case ARM::VST4dWB_fixed_Asm_8:
6597 case ARM::VST4dWB_fixed_Asm_16:
6598 case ARM::VST4dWB_fixed_Asm_32:
6599 case ARM::VST4qWB_fixed_Asm_8:
6600 case ARM::VST4qWB_fixed_Asm_16:
6601 case ARM::VST4qWB_fixed_Asm_32: {
6604 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6605 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6606 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6607 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6608 TmpInst.addOperand(MCOperand::CreateReg(0)); // Rm
6609 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6610 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6612 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6614 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6616 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6617 TmpInst.addOperand(Inst.getOperand(4));
6622 case ARM::VST4dWB_register_Asm_8:
6623 case ARM::VST4dWB_register_Asm_16:
6624 case ARM::VST4dWB_register_Asm_32:
6625 case ARM::VST4qWB_register_Asm_8:
6626 case ARM::VST4qWB_register_Asm_16:
6627 case ARM::VST4qWB_register_Asm_32: {
6630 TmpInst.setOpcode(getRealVSTOpcode(Inst.getOpcode(), Spacing));
6631 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6632 TmpInst.addOperand(Inst.getOperand(1)); // Rn_wb == tied Rn
6633 TmpInst.addOperand(Inst.getOperand(2)); // alignment
6634 TmpInst.addOperand(Inst.getOperand(3)); // Rm
6635 TmpInst.addOperand(Inst.getOperand(0)); // Vd
6636 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6638 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6640 TmpInst.addOperand(MCOperand::CreateReg(Inst.getOperand(0).getReg() +
6642 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6643 TmpInst.addOperand(Inst.getOperand(5));
6648 // Handle the Thumb2 mode MOV complex aliases.
6650 case ARM::t2MOVSsr: {
6651 // Which instruction to expand to depends on the CCOut operand and
6652 // whether we're in an IT block if the register operands are low
6654 bool isNarrow = false;
6655 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
6656 isARMLowRegister(Inst.getOperand(1).getReg()) &&
6657 isARMLowRegister(Inst.getOperand(2).getReg()) &&
6658 Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg() &&
6659 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsr))
6663 switch(ARM_AM::getSORegShOp(Inst.getOperand(3).getImm())) {
6664 default: llvm_unreachable("unexpected opcode!");
6665 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRrr : ARM::t2ASRrr; break;
6666 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRrr : ARM::t2LSRrr; break;
6667 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLrr : ARM::t2LSLrr; break;
6668 case ARM_AM::ror: newOpc = isNarrow ? ARM::tROR : ARM::t2RORrr; break;
6670 TmpInst.setOpcode(newOpc);
6671 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6673 TmpInst.addOperand(MCOperand::CreateReg(
6674 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
6675 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6676 TmpInst.addOperand(Inst.getOperand(2)); // Rm
6677 TmpInst.addOperand(Inst.getOperand(4)); // CondCode
6678 TmpInst.addOperand(Inst.getOperand(5));
6680 TmpInst.addOperand(MCOperand::CreateReg(
6681 Inst.getOpcode() == ARM::t2MOVSsr ? ARM::CPSR : 0));
6686 case ARM::t2MOVSsi: {
6687 // Which instruction to expand to depends on the CCOut operand and
6688 // whether we're in an IT block if the register operands are low
6690 bool isNarrow = false;
6691 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
6692 isARMLowRegister(Inst.getOperand(1).getReg()) &&
6693 inITBlock() == (Inst.getOpcode() == ARM::t2MOVsi))
6697 switch(ARM_AM::getSORegShOp(Inst.getOperand(2).getImm())) {
6698 default: llvm_unreachable("unexpected opcode!");
6699 case ARM_AM::asr: newOpc = isNarrow ? ARM::tASRri : ARM::t2ASRri; break;
6700 case ARM_AM::lsr: newOpc = isNarrow ? ARM::tLSRri : ARM::t2LSRri; break;
6701 case ARM_AM::lsl: newOpc = isNarrow ? ARM::tLSLri : ARM::t2LSLri; break;
6702 case ARM_AM::ror: newOpc = ARM::t2RORri; isNarrow = false; break;
6703 case ARM_AM::rrx: isNarrow = false; newOpc = ARM::t2RRX; break;
6705 unsigned Ammount = ARM_AM::getSORegOffset(Inst.getOperand(2).getImm());
6706 if (Ammount == 32) Ammount = 0;
6707 TmpInst.setOpcode(newOpc);
6708 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6710 TmpInst.addOperand(MCOperand::CreateReg(
6711 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
6712 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6713 if (newOpc != ARM::t2RRX)
6714 TmpInst.addOperand(MCOperand::CreateImm(Ammount));
6715 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6716 TmpInst.addOperand(Inst.getOperand(4));
6718 TmpInst.addOperand(MCOperand::CreateReg(
6719 Inst.getOpcode() == ARM::t2MOVSsi ? ARM::CPSR : 0));
6723 // Handle the ARM mode MOV complex aliases.
6728 ARM_AM::ShiftOpc ShiftTy;
6729 switch(Inst.getOpcode()) {
6730 default: llvm_unreachable("unexpected opcode!");
6731 case ARM::ASRr: ShiftTy = ARM_AM::asr; break;
6732 case ARM::LSRr: ShiftTy = ARM_AM::lsr; break;
6733 case ARM::LSLr: ShiftTy = ARM_AM::lsl; break;
6734 case ARM::RORr: ShiftTy = ARM_AM::ror; break;
6736 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, 0);
6738 TmpInst.setOpcode(ARM::MOVsr);
6739 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6740 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6741 TmpInst.addOperand(Inst.getOperand(2)); // Rm
6742 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
6743 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6744 TmpInst.addOperand(Inst.getOperand(4));
6745 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
6753 ARM_AM::ShiftOpc ShiftTy;
6754 switch(Inst.getOpcode()) {
6755 default: llvm_unreachable("unexpected opcode!");
6756 case ARM::ASRi: ShiftTy = ARM_AM::asr; break;
6757 case ARM::LSRi: ShiftTy = ARM_AM::lsr; break;
6758 case ARM::LSLi: ShiftTy = ARM_AM::lsl; break;
6759 case ARM::RORi: ShiftTy = ARM_AM::ror; break;
6761 // A shift by zero is a plain MOVr, not a MOVsi.
6762 unsigned Amt = Inst.getOperand(2).getImm();
6763 unsigned Opc = Amt == 0 ? ARM::MOVr : ARM::MOVsi;
6764 unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, Amt);
6766 TmpInst.setOpcode(Opc);
6767 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6768 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6769 if (Opc == ARM::MOVsi)
6770 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
6771 TmpInst.addOperand(Inst.getOperand(3)); // CondCode
6772 TmpInst.addOperand(Inst.getOperand(4));
6773 TmpInst.addOperand(Inst.getOperand(5)); // cc_out
6778 unsigned Shifter = ARM_AM::getSORegOpc(ARM_AM::rrx, 0);
6780 TmpInst.setOpcode(ARM::MOVsi);
6781 TmpInst.addOperand(Inst.getOperand(0)); // Rd
6782 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6783 TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
6784 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6785 TmpInst.addOperand(Inst.getOperand(3));
6786 TmpInst.addOperand(Inst.getOperand(4)); // cc_out
6790 case ARM::t2LDMIA_UPD: {
6791 // If this is a load of a single register, then we should use
6792 // a post-indexed LDR instruction instead, per the ARM ARM.
6793 if (Inst.getNumOperands() != 5)
6796 TmpInst.setOpcode(ARM::t2LDR_POST);
6797 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6798 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6799 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6800 TmpInst.addOperand(MCOperand::CreateImm(4));
6801 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6802 TmpInst.addOperand(Inst.getOperand(3));
6806 case ARM::t2STMDB_UPD: {
6807 // If this is a store of a single register, then we should use
6808 // a pre-indexed STR instruction instead, per the ARM ARM.
6809 if (Inst.getNumOperands() != 5)
6812 TmpInst.setOpcode(ARM::t2STR_PRE);
6813 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6814 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6815 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6816 TmpInst.addOperand(MCOperand::CreateImm(-4));
6817 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6818 TmpInst.addOperand(Inst.getOperand(3));
6822 case ARM::LDMIA_UPD:
6823 // If this is a load of a single register via a 'pop', then we should use
6824 // a post-indexed LDR instruction instead, per the ARM ARM.
6825 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "pop" &&
6826 Inst.getNumOperands() == 5) {
6828 TmpInst.setOpcode(ARM::LDR_POST_IMM);
6829 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6830 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6831 TmpInst.addOperand(Inst.getOperand(1)); // Rn
6832 TmpInst.addOperand(MCOperand::CreateReg(0)); // am2offset
6833 TmpInst.addOperand(MCOperand::CreateImm(4));
6834 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6835 TmpInst.addOperand(Inst.getOperand(3));
6840 case ARM::STMDB_UPD:
6841 // If this is a store of a single register via a 'push', then we should use
6842 // a pre-indexed STR instruction instead, per the ARM ARM.
6843 if (static_cast<ARMOperand*>(Operands[0])->getToken() == "push" &&
6844 Inst.getNumOperands() == 5) {
6846 TmpInst.setOpcode(ARM::STR_PRE_IMM);
6847 TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
6848 TmpInst.addOperand(Inst.getOperand(4)); // Rt
6849 TmpInst.addOperand(Inst.getOperand(1)); // addrmode_imm12
6850 TmpInst.addOperand(MCOperand::CreateImm(-4));
6851 TmpInst.addOperand(Inst.getOperand(2)); // CondCode
6852 TmpInst.addOperand(Inst.getOperand(3));
6856 case ARM::t2ADDri12:
6857 // If the immediate fits for encoding T3 (t2ADDri) and the generic "add"
6858 // mnemonic was used (not "addw"), encoding T3 is preferred.
6859 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "add" ||
6860 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
6862 Inst.setOpcode(ARM::t2ADDri);
6863 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
6865 case ARM::t2SUBri12:
6866 // If the immediate fits for encoding T3 (t2SUBri) and the generic "sub"
6867 // mnemonic was used (not "subw"), encoding T3 is preferred.
6868 if (static_cast<ARMOperand*>(Operands[0])->getToken() != "sub" ||
6869 ARM_AM::getT2SOImmVal(Inst.getOperand(2).getImm()) == -1)
6871 Inst.setOpcode(ARM::t2SUBri);
6872 Inst.addOperand(MCOperand::CreateReg(0)); // cc_out
6875 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
6876 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
6877 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
6878 // to encoding T1 if <Rd> is omitted."
6879 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
6880 Inst.setOpcode(ARM::tADDi3);
6885 // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
6886 // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
6887 // to encoding T2 if <Rd> is specified and encoding T2 is preferred
6888 // to encoding T1 if <Rd> is omitted."
6889 if ((unsigned)Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
6890 Inst.setOpcode(ARM::tSUBi3);
6895 case ARM::t2SUBri: {
6896 // If the destination and first source operand are the same, and
6897 // the flags are compatible with the current IT status, use encoding T2
6898 // instead of T3. For compatibility with the system 'as'. Make sure the
6899 // wide encoding wasn't explicit.
6900 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
6901 !isARMLowRegister(Inst.getOperand(0).getReg()) ||
6902 (unsigned)Inst.getOperand(2).getImm() > 255 ||
6903 ((!inITBlock() && Inst.getOperand(5).getReg() != ARM::CPSR) ||
6904 (inITBlock() && Inst.getOperand(5).getReg() != 0)) ||
6905 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
6906 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
6909 TmpInst.setOpcode(Inst.getOpcode() == ARM::t2ADDri ?
6910 ARM::tADDi8 : ARM::tSUBi8);
6911 TmpInst.addOperand(Inst.getOperand(0));
6912 TmpInst.addOperand(Inst.getOperand(5));
6913 TmpInst.addOperand(Inst.getOperand(0));
6914 TmpInst.addOperand(Inst.getOperand(2));
6915 TmpInst.addOperand(Inst.getOperand(3));
6916 TmpInst.addOperand(Inst.getOperand(4));
6920 case ARM::t2ADDrr: {
6921 // If the destination and first source operand are the same, and
6922 // there's no setting of the flags, use encoding T2 instead of T3.
6923 // Note that this is only for ADD, not SUB. This mirrors the system
6924 // 'as' behaviour. Make sure the wide encoding wasn't explicit.
6925 if (Inst.getOperand(0).getReg() != Inst.getOperand(1).getReg() ||
6926 Inst.getOperand(5).getReg() != 0 ||
6927 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
6928 static_cast<ARMOperand*>(Operands[3])->getToken() == ".w"))
6931 TmpInst.setOpcode(ARM::tADDhirr);
6932 TmpInst.addOperand(Inst.getOperand(0));
6933 TmpInst.addOperand(Inst.getOperand(0));
6934 TmpInst.addOperand(Inst.getOperand(2));
6935 TmpInst.addOperand(Inst.getOperand(3));
6936 TmpInst.addOperand(Inst.getOperand(4));
6941 // A Thumb conditional branch outside of an IT block is a tBcc.
6942 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()) {
6943 Inst.setOpcode(ARM::tBcc);
6948 // A Thumb2 conditional branch outside of an IT block is a t2Bcc.
6949 if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()){
6950 Inst.setOpcode(ARM::t2Bcc);
6955 // If the conditional is AL or we're in an IT block, we really want t2B.
6956 if (Inst.getOperand(1).getImm() == ARMCC::AL || inITBlock()) {
6957 Inst.setOpcode(ARM::t2B);
6962 // If the conditional is AL, we really want tB.
6963 if (Inst.getOperand(1).getImm() == ARMCC::AL) {
6964 Inst.setOpcode(ARM::tB);
6969 // If the register list contains any high registers, or if the writeback
6970 // doesn't match what tLDMIA can do, we need to use the 32-bit encoding
6971 // instead if we're in Thumb2. Otherwise, this should have generated
6972 // an error in validateInstruction().
6973 unsigned Rn = Inst.getOperand(0).getReg();
6974 bool hasWritebackToken =
6975 (static_cast<ARMOperand*>(Operands[3])->isToken() &&
6976 static_cast<ARMOperand*>(Operands[3])->getToken() == "!");
6977 bool listContainsBase;
6978 if (checkLowRegisterList(Inst, 3, Rn, 0, listContainsBase) ||
6979 (!listContainsBase && !hasWritebackToken) ||
6980 (listContainsBase && hasWritebackToken)) {
6981 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
6982 assert (isThumbTwo());
6983 Inst.setOpcode(hasWritebackToken ? ARM::t2LDMIA_UPD : ARM::t2LDMIA);
6984 // If we're switching to the updating version, we need to insert
6985 // the writeback tied operand.
6986 if (hasWritebackToken)
6987 Inst.insert(Inst.begin(),
6988 MCOperand::CreateReg(Inst.getOperand(0).getReg()));
6993 case ARM::tSTMIA_UPD: {
6994 // If the register list contains any high registers, we need to use
6995 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
6996 // should have generated an error in validateInstruction().
6997 unsigned Rn = Inst.getOperand(0).getReg();
6998 bool listContainsBase;
6999 if (checkLowRegisterList(Inst, 4, Rn, 0, listContainsBase)) {
7000 // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
7001 assert (isThumbTwo());
7002 Inst.setOpcode(ARM::t2STMIA_UPD);
7008 bool listContainsBase;
7009 // If the register list contains any high registers, we need to use
7010 // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
7011 // should have generated an error in validateInstruction().
7012 if (!checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase))
7014 assert (isThumbTwo());
7015 Inst.setOpcode(ARM::t2LDMIA_UPD);
7016 // Add the base register and writeback operands.
7017 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7018 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7022 bool listContainsBase;
7023 if (!checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase))
7025 assert (isThumbTwo());
7026 Inst.setOpcode(ARM::t2STMDB_UPD);
7027 // Add the base register and writeback operands.
7028 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7029 Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
7033 // If we can use the 16-bit encoding and the user didn't explicitly
7034 // request the 32-bit variant, transform it here.
7035 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7036 (unsigned)Inst.getOperand(1).getImm() <= 255 &&
7037 ((!inITBlock() && Inst.getOperand(2).getImm() == ARMCC::AL &&
7038 Inst.getOperand(4).getReg() == ARM::CPSR) ||
7039 (inITBlock() && Inst.getOperand(4).getReg() == 0)) &&
7040 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7041 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7042 // The operands aren't in the same order for tMOVi8...
7044 TmpInst.setOpcode(ARM::tMOVi8);
7045 TmpInst.addOperand(Inst.getOperand(0));
7046 TmpInst.addOperand(Inst.getOperand(4));
7047 TmpInst.addOperand(Inst.getOperand(1));
7048 TmpInst.addOperand(Inst.getOperand(2));
7049 TmpInst.addOperand(Inst.getOperand(3));
7056 // If we can use the 16-bit encoding and the user didn't explicitly
7057 // request the 32-bit variant, transform it here.
7058 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7059 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7060 Inst.getOperand(2).getImm() == ARMCC::AL &&
7061 Inst.getOperand(4).getReg() == ARM::CPSR &&
7062 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7063 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7064 // The operands aren't the same for tMOV[S]r... (no cc_out)
7066 TmpInst.setOpcode(Inst.getOperand(4).getReg() ? ARM::tMOVSr : ARM::tMOVr);
7067 TmpInst.addOperand(Inst.getOperand(0));
7068 TmpInst.addOperand(Inst.getOperand(1));
7069 TmpInst.addOperand(Inst.getOperand(2));
7070 TmpInst.addOperand(Inst.getOperand(3));
7080 // If we can use the 16-bit encoding and the user didn't explicitly
7081 // request the 32-bit variant, transform it here.
7082 if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
7083 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7084 Inst.getOperand(2).getImm() == 0 &&
7085 (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
7086 static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
7088 switch (Inst.getOpcode()) {
7089 default: llvm_unreachable("Illegal opcode!");
7090 case ARM::t2SXTH: NewOpc = ARM::tSXTH; break;
7091 case ARM::t2SXTB: NewOpc = ARM::tSXTB; break;
7092 case ARM::t2UXTH: NewOpc = ARM::tUXTH; break;
7093 case ARM::t2UXTB: NewOpc = ARM::tUXTB; break;
7095 // The operands aren't the same for thumb1 (no rotate operand).
7097 TmpInst.setOpcode(NewOpc);
7098 TmpInst.addOperand(Inst.getOperand(0));
7099 TmpInst.addOperand(Inst.getOperand(1));
7100 TmpInst.addOperand(Inst.getOperand(3));
7101 TmpInst.addOperand(Inst.getOperand(4));
7108 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(2).getImm());
7109 if (SOpc == ARM_AM::rrx) return false;
7110 if (ARM_AM::getSORegOffset(Inst.getOperand(2).getImm()) == 0) {
7111 // Shifting by zero is accepted as a vanilla 'MOVr'
7113 TmpInst.setOpcode(ARM::MOVr);
7114 TmpInst.addOperand(Inst.getOperand(0));
7115 TmpInst.addOperand(Inst.getOperand(1));
7116 TmpInst.addOperand(Inst.getOperand(3));
7117 TmpInst.addOperand(Inst.getOperand(4));
7118 TmpInst.addOperand(Inst.getOperand(5));
7131 ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(Inst.getOperand(3).getImm());
7132 if (SOpc == ARM_AM::rrx) return false;
7133 switch (Inst.getOpcode()) {
7134 default: llvm_unreachable("unexpected opcode!");
7135 case ARM::ANDrsi: newOpc = ARM::ANDrr; break;
7136 case ARM::ORRrsi: newOpc = ARM::ORRrr; break;
7137 case ARM::EORrsi: newOpc = ARM::EORrr; break;
7138 case ARM::BICrsi: newOpc = ARM::BICrr; break;
7139 case ARM::SUBrsi: newOpc = ARM::SUBrr; break;
7140 case ARM::ADDrsi: newOpc = ARM::ADDrr; break;
7142 // If the shift is by zero, use the non-shifted instruction definition.
7143 if (ARM_AM::getSORegOffset(Inst.getOperand(3).getImm()) == 0) {
7145 TmpInst.setOpcode(newOpc);
7146 TmpInst.addOperand(Inst.getOperand(0));
7147 TmpInst.addOperand(Inst.getOperand(1));
7148 TmpInst.addOperand(Inst.getOperand(2));
7149 TmpInst.addOperand(Inst.getOperand(4));
7150 TmpInst.addOperand(Inst.getOperand(5));
7151 TmpInst.addOperand(Inst.getOperand(6));
7159 // The mask bits for all but the first condition are represented as
7160 // the low bit of the condition code value implies 't'. We currently
7161 // always have 1 implies 't', so XOR toggle the bits if the low bit
7162 // of the condition code is zero. The encoding also expects the low
7163 // bit of the condition to be encoded as bit 4 of the mask operand,
7164 // so mask that in if needed
7165 MCOperand &MO = Inst.getOperand(1);
7166 unsigned Mask = MO.getImm();
7167 unsigned OrigMask = Mask;
7168 unsigned TZ = CountTrailingZeros_32(Mask);
7169 if ((Inst.getOperand(0).getImm() & 1) == 0) {
7170 assert(Mask && TZ <= 3 && "illegal IT mask value!");
7171 for (unsigned i = 3; i != TZ; --i)
7177 // Set up the IT block state according to the IT instruction we just
7179 assert(!inITBlock() && "nested IT blocks?!");
7180 ITState.Cond = ARMCC::CondCodes(Inst.getOperand(0).getImm());
7181 ITState.Mask = OrigMask; // Use the original mask, not the updated one.
7182 ITState.CurPosition = 0;
7183 ITState.FirstCond = true;
7190 unsigned ARMAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
7191 // 16-bit thumb arithmetic instructions either require or preclude the 'S'
7192 // suffix depending on whether they're in an IT block or not.
7193 unsigned Opc = Inst.getOpcode();
7194 const MCInstrDesc &MCID = getInstDesc(Opc);
7195 if (MCID.TSFlags & ARMII::ThumbArithFlagSetting) {
7196 assert(MCID.hasOptionalDef() &&
7197 "optionally flag setting instruction missing optional def operand");
7198 assert(MCID.NumOperands == Inst.getNumOperands() &&
7199 "operand count mismatch!");
7200 // Find the optional-def operand (cc_out).
7203 !MCID.OpInfo[OpNo].isOptionalDef() && OpNo < MCID.NumOperands;
7206 // If we're parsing Thumb1, reject it completely.
7207 if (isThumbOne() && Inst.getOperand(OpNo).getReg() != ARM::CPSR)
7208 return Match_MnemonicFail;
7209 // If we're parsing Thumb2, which form is legal depends on whether we're
7211 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() != ARM::CPSR &&
7213 return Match_RequiresITBlock;
7214 if (isThumbTwo() && Inst.getOperand(OpNo).getReg() == ARM::CPSR &&
7216 return Match_RequiresNotITBlock;
7218 // Some high-register supporting Thumb1 encodings only allow both registers
7219 // to be from r0-r7 when in Thumb2.
7220 else if (Opc == ARM::tADDhirr && isThumbOne() &&
7221 isARMLowRegister(Inst.getOperand(1).getReg()) &&
7222 isARMLowRegister(Inst.getOperand(2).getReg()))
7223 return Match_RequiresThumb2;
7224 // Others only require ARMv6 or later.
7225 else if (Opc == ARM::tMOVr && isThumbOne() && !hasV6Ops() &&
7226 isARMLowRegister(Inst.getOperand(0).getReg()) &&
7227 isARMLowRegister(Inst.getOperand(1).getReg()))
7228 return Match_RequiresV6;
7229 return Match_Success;
7233 MatchAndEmitInstruction(SMLoc IDLoc,
7234 SmallVectorImpl<MCParsedAsmOperand*> &Operands,
7238 unsigned MatchResult;
7239 MatchResult = MatchInstructionImpl(Operands, Inst, ErrorInfo);
7240 switch (MatchResult) {
7243 // Context sensitive operand constraints aren't handled by the matcher,
7244 // so check them here.
7245 if (validateInstruction(Inst, Operands)) {
7246 // Still progress the IT block, otherwise one wrong condition causes
7247 // nasty cascading errors.
7248 forwardITPosition();
7252 // Some instructions need post-processing to, for example, tweak which
7253 // encoding is selected. Loop on it while changes happen so the
7254 // individual transformations can chain off each other. E.g.,
7255 // tPOP(r8)->t2LDMIA_UPD(sp,r8)->t2STR_POST(sp,r8)
7256 while (processInstruction(Inst, Operands))
7259 // Only move forward at the very end so that everything in validate
7260 // and process gets a consistent answer about whether we're in an IT
7262 forwardITPosition();
7264 // ITasm is an ARM mode pseudo-instruction that just sets the ITblock and
7265 // doesn't actually encode.
7266 if (Inst.getOpcode() == ARM::ITasm)
7270 Out.EmitInstruction(Inst);
7272 case Match_MissingFeature:
7273 Error(IDLoc, "instruction requires a CPU feature not currently enabled");
7275 case Match_InvalidOperand: {
7276 SMLoc ErrorLoc = IDLoc;
7277 if (ErrorInfo != ~0U) {
7278 if (ErrorInfo >= Operands.size())
7279 return Error(IDLoc, "too few operands for instruction");
7281 ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
7282 if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
7285 return Error(ErrorLoc, "invalid operand for instruction");
7287 case Match_MnemonicFail:
7288 return Error(IDLoc, "invalid instruction");
7289 case Match_ConversionFail:
7290 // The converter function will have already emited a diagnostic.
7292 case Match_RequiresNotITBlock:
7293 return Error(IDLoc, "flag setting instruction only valid outside IT block");
7294 case Match_RequiresITBlock:
7295 return Error(IDLoc, "instruction only valid inside IT block");
7296 case Match_RequiresV6:
7297 return Error(IDLoc, "instruction variant requires ARMv6 or later");
7298 case Match_RequiresThumb2:
7299 return Error(IDLoc, "instruction variant requires Thumb2");
7302 llvm_unreachable("Implement any new match types added!");
7305 /// parseDirective parses the arm specific directives
7306 bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) {
7307 StringRef IDVal = DirectiveID.getIdentifier();
7308 if (IDVal == ".word")
7309 return parseDirectiveWord(4, DirectiveID.getLoc());
7310 else if (IDVal == ".thumb")
7311 return parseDirectiveThumb(DirectiveID.getLoc());
7312 else if (IDVal == ".arm")
7313 return parseDirectiveARM(DirectiveID.getLoc());
7314 else if (IDVal == ".thumb_func")
7315 return parseDirectiveThumbFunc(DirectiveID.getLoc());
7316 else if (IDVal == ".code")
7317 return parseDirectiveCode(DirectiveID.getLoc());
7318 else if (IDVal == ".syntax")
7319 return parseDirectiveSyntax(DirectiveID.getLoc());
7320 else if (IDVal == ".unreq")
7321 return parseDirectiveUnreq(DirectiveID.getLoc());
7322 else if (IDVal == ".arch")
7323 return parseDirectiveArch(DirectiveID.getLoc());
7324 else if (IDVal == ".eabi_attribute")
7325 return parseDirectiveEabiAttr(DirectiveID.getLoc());
7329 /// parseDirectiveWord
7330 /// ::= .word [ expression (, expression)* ]
7331 bool ARMAsmParser::parseDirectiveWord(unsigned Size, SMLoc L) {
7332 if (getLexer().isNot(AsmToken::EndOfStatement)) {
7334 const MCExpr *Value;
7335 if (getParser().ParseExpression(Value))
7338 getParser().getStreamer().EmitValue(Value, Size, 0/*addrspace*/);
7340 if (getLexer().is(AsmToken::EndOfStatement))
7343 // FIXME: Improve diagnostic.
7344 if (getLexer().isNot(AsmToken::Comma))
7345 return Error(L, "unexpected token in directive");
7354 /// parseDirectiveThumb
7356 bool ARMAsmParser::parseDirectiveThumb(SMLoc L) {
7357 if (getLexer().isNot(AsmToken::EndOfStatement))
7358 return Error(L, "unexpected token in directive");
7363 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
7367 /// parseDirectiveARM
7369 bool ARMAsmParser::parseDirectiveARM(SMLoc L) {
7370 if (getLexer().isNot(AsmToken::EndOfStatement))
7371 return Error(L, "unexpected token in directive");
7376 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
7380 /// parseDirectiveThumbFunc
7381 /// ::= .thumbfunc symbol_name
7382 bool ARMAsmParser::parseDirectiveThumbFunc(SMLoc L) {
7383 const MCAsmInfo &MAI = getParser().getStreamer().getContext().getAsmInfo();
7384 bool isMachO = MAI.hasSubsectionsViaSymbols();
7386 bool needFuncName = true;
7388 // Darwin asm has (optionally) function name after .thumb_func direction
7391 const AsmToken &Tok = Parser.getTok();
7392 if (Tok.isNot(AsmToken::EndOfStatement)) {
7393 if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String))
7394 return Error(L, "unexpected token in .thumb_func directive");
7395 Name = Tok.getIdentifier();
7396 Parser.Lex(); // Consume the identifier token.
7397 needFuncName = false;
7401 if (getLexer().isNot(AsmToken::EndOfStatement))
7402 return Error(L, "unexpected token in directive");
7404 // Eat the end of statement and any blank lines that follow.
7405 while (getLexer().is(AsmToken::EndOfStatement))
7408 // FIXME: assuming function name will be the line following .thumb_func
7409 // We really should be checking the next symbol definition even if there's
7410 // stuff in between.
7412 Name = Parser.getTok().getIdentifier();
7415 // Mark symbol as a thumb symbol.
7416 MCSymbol *Func = getParser().getContext().GetOrCreateSymbol(Name);
7417 getParser().getStreamer().EmitThumbFunc(Func);
7421 /// parseDirectiveSyntax
7422 /// ::= .syntax unified | divided
7423 bool ARMAsmParser::parseDirectiveSyntax(SMLoc L) {
7424 const AsmToken &Tok = Parser.getTok();
7425 if (Tok.isNot(AsmToken::Identifier))
7426 return Error(L, "unexpected token in .syntax directive");
7427 StringRef Mode = Tok.getString();
7428 if (Mode == "unified" || Mode == "UNIFIED")
7430 else if (Mode == "divided" || Mode == "DIVIDED")
7431 return Error(L, "'.syntax divided' arm asssembly not supported");
7433 return Error(L, "unrecognized syntax mode in .syntax directive");
7435 if (getLexer().isNot(AsmToken::EndOfStatement))
7436 return Error(Parser.getTok().getLoc(), "unexpected token in directive");
7439 // TODO tell the MC streamer the mode
7440 // getParser().getStreamer().Emit???();
7444 /// parseDirectiveCode
7445 /// ::= .code 16 | 32
7446 bool ARMAsmParser::parseDirectiveCode(SMLoc L) {
7447 const AsmToken &Tok = Parser.getTok();
7448 if (Tok.isNot(AsmToken::Integer))
7449 return Error(L, "unexpected token in .code directive");
7450 int64_t Val = Parser.getTok().getIntVal();
7456 return Error(L, "invalid operand to .code directive");
7458 if (getLexer().isNot(AsmToken::EndOfStatement))
7459 return Error(Parser.getTok().getLoc(), "unexpected token in directive");
7465 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16);
7469 getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
7475 /// parseDirectiveReq
7476 /// ::= name .req registername
7477 bool ARMAsmParser::parseDirectiveReq(StringRef Name, SMLoc L) {
7478 Parser.Lex(); // Eat the '.req' token.
7480 SMLoc SRegLoc, ERegLoc;
7481 if (ParseRegister(Reg, SRegLoc, ERegLoc)) {
7482 Parser.EatToEndOfStatement();
7483 return Error(SRegLoc, "register name expected");
7486 // Shouldn't be anything else.
7487 if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
7488 Parser.EatToEndOfStatement();
7489 return Error(Parser.getTok().getLoc(),
7490 "unexpected input in .req directive.");
7493 Parser.Lex(); // Consume the EndOfStatement
7495 if (RegisterReqs.GetOrCreateValue(Name, Reg).getValue() != Reg)
7496 return Error(SRegLoc, "redefinition of '" + Name +
7497 "' does not match original.");
7502 /// parseDirectiveUneq
7503 /// ::= .unreq registername
7504 bool ARMAsmParser::parseDirectiveUnreq(SMLoc L) {
7505 if (Parser.getTok().isNot(AsmToken::Identifier)) {
7506 Parser.EatToEndOfStatement();
7507 return Error(L, "unexpected input in .unreq directive.");
7509 RegisterReqs.erase(Parser.getTok().getIdentifier());
7510 Parser.Lex(); // Eat the identifier.
7514 /// parseDirectiveArch
7516 bool ARMAsmParser::parseDirectiveArch(SMLoc L) {
7520 /// parseDirectiveEabiAttr
7521 /// ::= .eabi_attribute int, int
7522 bool ARMAsmParser::parseDirectiveEabiAttr(SMLoc L) {
7526 extern "C" void LLVMInitializeARMAsmLexer();
7528 /// Force static initialization.
7529 extern "C" void LLVMInitializeARMAsmParser() {
7530 RegisterMCAsmParser<ARMAsmParser> X(TheARMTarget);
7531 RegisterMCAsmParser<ARMAsmParser> Y(TheThumbTarget);
7532 LLVMInitializeARMAsmLexer();
7535 #define GET_REGISTER_MATCHER
7536 #define GET_MATCHER_IMPLEMENTATION
7537 #include "ARMGenAsmMatcher.inc"